PMID- 29013714 TI - Service Notes. PMID- 29013712 TI - Autopsy Studies in India. PMID- 29013713 TI - Eye Complications of Dermal Leishmaniasis. PMID- 29013715 TI - Intrapartum Uterine Rupture. (With a Report on Four Cases). PMID- 29013716 TI - Insulin Requirements in India. PMID- 29013717 TI - Cement Windows and Ventilators. PMID- 29013718 TI - Hydrotherapy in Typhoid Fever. PMID- 29013719 TI - A New and Highly Potent Typhoid Vaccine: A Review. PMID- 29013720 TI - Pancreatic Calculi. PMID- 29013721 TI - Bullous Emphysema of the Lung. PMID- 29013722 TI - An Inquiry into the Incidence of Porphyrinuria. PMID- 29013723 TI - The School Teacher and Child Welfare. PMID- 29013724 TI - Current Topics. PMID- 29013725 TI - A Case of Confluent Smallpox: Treatment-Chemotherapy. PMID- 29013726 TI - Post-Mortem Examinations in India. PMID- 29013727 TI - Hidden Sepsis in the Palatine Tonsils. PMID- 29013728 TI - Available Light in a Public Building. PMID- 29013729 TI - On the Importance of Malnutrition in the AEtiology of the Anaemic State in Tea Garden Coolies. PMID- 29013731 TI - Medical News. PMID- 29013730 TI - Observations on the Relationship between Malaria and Pistia in Two Villages in Murshidabad District. PMID- 29013732 TI - Unusual Rhinosporidial Infection in Man. PMID- 29013733 TI - Sulphonamide, Sulphates and Ordinary Diet. A Clinical Investigation into the Effects of Their Simultaneous Administration. PMID- 29013734 TI - Report on the Epidemic of Oriental Sore in Delhi. PMID- 29013735 TI - Keratodermia Blennorrhagica. A Brief Review and Report of a Case. PMID- 29013737 TI - Erratum: Multiple Primary Epidermoid Carcinoma: De and Tribedi. AB - [This corrects the article on p. 397 in vol. 76.]. PMID- 29013736 TI - Studies on the Vitamin-A Content of Ghee. PMID- 29013738 TI - Medical News. PMID- 29013739 TI - On the Composition of Buffalo Milk and the Detection of Adulterated Samples Passed as Cow Milk. PMID- 29013740 TI - Capillaria Hepatica in a Wild Rat in Calcutta. PMID- 29013742 TI - Eclampsia Treated with Intravenous Injection of Magnesium Sulphate Solution. PMID- 29013741 TI - A Case of Bacillary Dysentery Simulating Acute Abdominal Catastrophy in Its Early Stages. PMID- 29013743 TI - Effect of Sulphapyridine on Roundworms in a Child with Pneumonia. PMID- 29013744 TI - A Case of Disputed Parentage. PMID- 29013745 TI - Toxaemia of Pregnancy. PMID- 29013746 TI - Does A Lung Cavity Ever Heal Spontaneously? PMID- 29013747 TI - Ideal Marriage. PMID- 29013748 TI - Mediastinal Hernia. PMID- 29013749 TI - Notes on the Training of Athletes. PMID- 29013750 TI - A Note on Complement-Fixation Test in Leprosy and Kala-Azar with Witebsky, Klingenstein and Kuhn (W. K. K.) Antigen. PMID- 29013751 TI - Intradermal Test as an Index of Vitamin-C Nutrition of the Body -Observations at Vizagapatam. PMID- 29013752 TI - Should Anti-Typhoid Inoculation Be Practised in a Household Exposed to Typhoid Infection? PMID- 29013753 TI - Service Notes. PMID- 29013754 TI - Incidence of Salmonella Infection in Rats in Calcutta. PMID- 29013755 TI - Value of Eijkman Test in the Differentiation of AErogenes Isolated from Milk. PMID- 29013756 TI - Public Health Reports. PMID- 29013758 TI - The Tuberculosis Association of India: The Lady Linlithgow Tuberculosis Sanatorium, Kasauli. PMID- 29013757 TI - Bacteriophage as an Index of Water Contamination. PMID- 29013759 TI - The Public Health Section. PMID- 29013760 TI - Current Topics. PMID- 29013762 TI - Abstracts from Reports. PMID- 29013761 TI - Nutrition. PMID- 29013763 TI - Medical News. PMID- 29013764 TI - A Case of Peritonitis Following Abortion Treated with Sulphonamide. PMID- 29013765 TI - The Intradermal Test as an Index of Vitamin-C Nutrition. Part II. PMID- 29013766 TI - Statistical Note. PMID- 29013767 TI - Report of Pneumonia Enquiry at the Mayo Hospital, Lahore, during the Years 1938, 1939 and 1940. PMID- 29013768 TI - A New Method for the Relief of Paralysis of the Opponens Pollicis. PMID- 29013770 TI - Current Topics. PMID- 29013769 TI - Linguatulid Infection in Man. PMID- 29013772 TI - Service Notes. PMID- 29013771 TI - Subtotal Gastrectomy with Ulcer Exclusion in the Treatment of Chronic Peptic Ulcer. PMID- 29013773 TI - Medical Notes from the Diaries of the Three Surgeons of Patna-1763. PMID- 29013775 TI - Aviation Medicine. PMID- 29013774 TI - 'Doping' in Athletic Contests. PMID- 29013776 TI - Automatic Flyproof Latrine Seat. PMID- 29013777 TI - A Case of Aneurysm of Ascending Aorta. PMID- 29013778 TI - Observations on the Outbreak of Epidemic Cerebro-Spinal Meningitis in Burma with a Special Note on Its Bacteriology and on Progress of the Epidemic. PMID- 29013779 TI - Haematological Technique. Part V. PMID- 29013780 TI - Abstracts from Reports. PMID- 29013781 TI - Social Aspects of Tuberculosis. PMID- 29013783 TI - Abstracts from Reports. PMID- 29013782 TI - A Case of Banti's Disease. PMID- 29013784 TI - Common Cold Responsible for Grave Suspicion of Rabies in the Dog and a Discussion on Associated Considerations Including Rabies in Mongooses and Bats. PMID- 29013785 TI - British Pharmaceutical Products. PMID- 29013787 TI - Erratum. AB - [This corrects the article on p. 175 in vol. 75.]. PMID- 29013786 TI - Observations on Some Unusual Toxic Effects of Sulphanilamide Therapy. PMID- 29013788 TI - 'Non-Epidemic Typhus' Fever in the Civil Population of Bangalore (Civil and Military Station). PMID- 29013789 TI - British Pharmaceutical Products. PMID- 29013790 TI - Service Notes. PMID- 29013791 TI - Treatment of Opium Addiction with Lecithin and Glucose and Its Effects on Abstinence Symptoms. PMID- 29013792 TI - Health Bulletin No. 27. Abstract of the Report of an Inquiry into the Causes of Maternal Mortality in Calcutta. PMID- 29013793 TI - Hormones in Menstruation and Pregnancy: Physiology, Pathology and Treatment-A Resume. PMID- 29013794 TI - Current Topics. PMID- 29013795 TI - Medical News. PMID- 29013797 TI - Maternal Mortality in Calcutta. PMID- 29013796 TI - Radiological Appearances of the Heart and Lungs in Cases of Hypertensive Heart Failure. PMID- 29013798 TI - Observations on the Use of Nicotinic Acid in the Treatment of Pellagra and Allied Conditions. PMID- 29013800 TI - Current Topics. PMID- 29013799 TI - The Buffer Precipitation Test for Malaria (B. P. T.) Adjusted for Large-Scale Examinations. PMID- 29013802 TI - Medical News. PMID- 29013801 TI - A Case of Neuromyelitis Optica. PMID- 29013803 TI - Observations on the Differentiation of Bact. Coli and Bact. AErogenes on Levine's Simplified Eosin-Methylene-Blue-Agar as Applied to the Bacteriology of Water in Bengal. PMID- 29013804 TI - Service Notes. PMID- 29013805 TI - Abstracts from Reports. PMID- 29013806 TI - Report of an Endocrine Clinic. PMID- 29013807 TI - Taking Blood for Transfusion (In Potain's Aspirator). Further Details Including Cold Storage. PMID- 29013809 TI - The Manufacture of Drugs in India. PMID- 29013808 TI - The Modern Concept of Uraemia and Its Clinical Study. (Based on a Series of Forty Four Cases): Based on a Series of Forty-Four Cases. PMID- 29013810 TI - Against Orthodoxies in Symbolism, Micromethods and Micromathematics. PMID- 29013811 TI - Vibrio Cholerae and Other Vibrios. (Observations on 'Water Vibrios', with Special Reference to Their Variation during Storage in Culture Medium and Possible Relationship to Vibrio Cholerae). PMID- 29013812 TI - A Few Case Notes on the Use of M. & B. 693 in Pyelitis and in Septic Skin Conditions. PMID- 29013813 TI - Treatment of Wounds with Urea. PMID- 29013814 TI - A Scheme of Control of Tuberculosis in India by 'Organized' Home Treatment. PMID- 29013815 TI - Diet in Tuberculosis. PMID- 29013816 TI - Pulmonary Tuberculosis and Diabetes Mellitus. PMID- 29013818 TI - Medical News. PMID- 29013817 TI - Lowering of Insurance Fees. PMID- 29013819 TI - Madras Medical Register, 1940-Compilation and Publication of Changes of Addresses of Medical Practitioners. PMID- 29013821 TI - Service Notes. PMID- 29013820 TI - Chronic Non-Tuberculous Infections of the Lung. PMID- 29013822 TI - A Pseudo-Tuberculous Condition Associated with Eosinophilia. PMID- 29013824 TI - Abstracts from Reports. PMID- 29013823 TI - Modern Measures in the Mass Control of Tuberculosis in the United States of America. PMID- 29013825 TI - Treatment of Tuberculous Empyema Illustrated Report on 17 Cases Treated in the Wanless Tuberculosis. PMID- 29013827 TI - The Special Tuberculosis Number. PMID- 29013826 TI - The Range of the Malaria-Carrying Mosquito. PMID- 29013828 TI - A Note on Tuberculosis Surveys. PMID- 29013829 TI - Tuberculosis in Women: Pregnancy and Tuberculosis. PMID- 29013830 TI - Spontaneous Pneumothorax. PMID- 29013832 TI - Current Topics. PMID- 29013831 TI - A Tuberculosis Policy for India. PMID- 29013833 TI - More Notes on Clinical Heart Disease. PMID- 29013834 TI - The Vi-Agglutination Test in Enteric Fever: An Analysis of 255 Cases. PMID- 29013835 TI - Prolapse of the Rectum in Children and the Role Played by Gallows Splint in the Cure of This Condition. PMID- 29013836 TI - A Case of Air Embolism as a Result of Artificial Pneumothorax Treatment. PMID- 29013837 TI - Existence of Leptospirosis in Rangoon. PMID- 29013838 TI - Auricular Flutter. PMID- 29013839 TI - Sub-Lingual Gland Calculi. PMID- 29013841 TI - Entomological Specimens. PMID- 29013840 TI - A Simple Treatment of Dysenteries and Diarrhoeas. PMID- 29013842 TI - An Unusual Case of Anaphylaxis. PMID- 29013843 TI - Rabies in Lowlier Animals. PMID- 29013845 TI - Medical News. PMID- 29013844 TI - On Using Water Instead of Dust for Diluting Paris Green in Malaria Control. PMID- 29013846 TI - A Case of Duodenal Obstruction. PMID- 29013848 TI - Three Quarters of a Century of Uninterrupted Publication. PMID- 29013847 TI - Making Plasma Safe for Transfusion. PMID- 29013849 TI - Goitre in the District of Kangra (Punjab). PMID- 29013850 TI - Severe Haematuria Resulting from the Use of M.&B. 693. PMID- 29013851 TI - Development of Some Female Secondary Sex Characters in an Adult Male. PMID- 29013852 TI - Smallpox and Sulphonamide. PMID- 29013854 TI - Service Notes. PMID- 29013853 TI - A Case of Self-Operation for Ventral Hernia. PMID- 29013855 TI - Ectopic Pregnancy: A Clinical Note. PMID- 29013856 TI - A Case of Abdominal Pregnancy. PMID- 29013857 TI - Abstracts from Reports. PMID- 29013858 TI - Intestinal Polyposis. PMID- 29013859 TI - Diamidino-Stilbene in the Treatment of Kala-Azar. PMID- 29013860 TI - Current Topics. PMID- 29013861 TI - Haematological Technique. Part VI. PMID- 29013862 TI - The Investigation of Parrots in Calcutta for Presence of Psittacosis and Brazilian Virus. PMID- 29013863 TI - Banti's Disease? PMID- 29013864 TI - Per-Rectum M.&B. 693 in a Case of Pneumonia. PMID- 29013865 TI - The Adult of Microfilaria Malayi Brug, 1927. PMID- 29013866 TI - Prontosil Album in Gangrenous Stomatitis. PMID- 29013867 TI - British Pharmaceutical Products. PMID- 29013868 TI - Hospital Organization in India. PMID- 29013869 TI - Observations on the Use of Nicotinic Acid in the Treatment of Pellagra and Allied Conditions. PMID- 29013871 TI - Current Topics. PMID- 29013870 TI - Hospital Organization with Special Reference to Conditions in India. PMID- 29013873 TI - Service Notes. PMID- 29013872 TI - Cardio-Spasm of OEsophagus. PMID- 29013874 TI - Topical Application of Sulphanilamides. PMID- 29013876 TI - Experience with Diseases of the Gall-Bladder. PMID- 29013875 TI - A Simple and Inexpensive Flea-Proof Cage. PMID- 29013877 TI - Aortic Stenosis. PMID- 29013878 TI - Medical News. PMID- 29013879 TI - Haematological Technique. Part II. PMID- 29013880 TI - Abstracts from Reports. PMID- 29013881 TI - Service Notes. PMID- 29013882 TI - Further Light on the Mechanism of Sandfly Transmission of Kala-Azar. PMID- 29013883 TI - Acute Obstruction Caused by Meckel's Diverticulum. PMID- 29013884 TI - A New Method of Treating Leucoderma. PMID- 29013885 TI - An Experiment in Coolie Line Sanitation: Effect on Hookworm Incidence. PMID- 29013886 TI - The Venom of Indian Cobra (Naja Naja) in Certain Painful Conditions. PMID- 29013888 TI - Current Topics. PMID- 29013887 TI - M. and B. 693 in a Case of Pneumonia Complicating a Case of Stab Wound of Abdomen. PMID- 29013889 TI - General Transposition of Organs. PMID- 29013890 TI - A Hydatid Cyst in the Neck. PMID- 29013891 TI - Aortalgia or Anginal Pain of Aortic Origin. PMID- 29013892 TI - Remarks on the AEtiology and Symptoms of Young-Dah-Hte with a Report on Four Cases and Its Medico-Legal Significance. PMID- 29013893 TI - Studies in the Epidemiology of Plague in H. E. H. the Nizam's Dominions: Comparison of Certain Factors in a Plague-Infected Place with That of Neighbouring Plague-Free Area. PMID- 29013894 TI - The Treatment of Carbuncle in the Out-Patient Department. PMID- 29013895 TI - Observations on the Pathology and Therapy of the So-Called Frontier Sore: Second Communication. PMID- 29013896 TI - The Transmission of Kala-Azar. PMID- 29013897 TI - Haematological Technique. Part I. PMID- 29013898 TI - Medical News. PMID- 29013899 TI - Abstracts from Reports. PMID- 29013900 TI - Vitamin C and Ovulation. PMID- 29013902 TI - Circulatory Failure in Typhoid Fever. PMID- 29013901 TI - The Needle in the Vein. PMID- 29013903 TI - Summaries of the Papers Read and the Discussions That Followed at the Tuberculosis Workers' Conference, New Delhi, 20th to 23rd November, 1939. PMID- 29013905 TI - Cooley's Erythroblastic Anaemia. PMID- 29013904 TI - Epidermophytosis in a Very Young Child. PMID- 29013907 TI - Current Topics. PMID- 29013906 TI - Different Serological Races of Leptospira in the Andamans. PMID- 29013908 TI - A Case of Congenital Diaphragmatic Hernia. PMID- 29013909 TI - Correspondence. PMID- 29013911 TI - Action of Atebrin on Mental Patients-A Clinical Study. PMID- 29013910 TI - Chemotherapeutic Studies in the Treatment of Meningococcal and Pneumococcal Meningitis. PMID- 29013912 TI - M 3, a New Drug in the Treatment of Malaria. PMID- 29013913 TI - A Cure for Scorpion Stings. PMID- 29013914 TI - The Place of Electro-Surgery of Tonsils in Indian Practice. PMID- 29013916 TI - Tuberculous Endometritis. PMID- 29013915 TI - Taking Blood for Transfusion. PMID- 29013918 TI - Pernicious Anaemia in Indians. PMID- 29013917 TI - A Case of Brucella Abortus Infection Treated with Prontosil. PMID- 29013919 TI - Chronic Snake-Bite. PMID- 29013920 TI - A Case of Scurvy. PMID- 29013921 TI - M. & B. 693 in Indian Strains of Malaria. PMID- 29013922 TI - Intracutaneous Inoculation of Guinea-Pigs for the Diagnosis of Tuberculosis. PMID- 29013923 TI - Spectrophotometric Examination of Blood in the Treatment of Meningitis with Diaminodiphenyl-Sulphone Glucoside. PMID- 29013924 TI - A Case of Late Relapse in Typhoid Fever. PMID- 29013925 TI - Electrocardiography in the Diagnosis of Silent Heart Diseases. PMID- 29013926 TI - Service Notes. PMID- 29013927 TI - Abstracts from Reports. PMID- 29013928 TI - A Case of Tetanus Treated with 25 per Cent Magnesium Sulphate Solution. PMID- 29013929 TI - Report of Two Post-Mortems and Five Cases of Addisonian Pernicious Anaemia. PMID- 29013930 TI - A Simple Anaesthetic Apparatus. PMID- 29013931 TI - Medical News. PMID- 29013933 TI - Vitex Peduncularis in the Treatment of Blackwater Fever. PMID- 29013932 TI - Congenital Abnormality of the External Pudendal Veins with Associated Erythema. PMID- 29013934 TI - Observations on the Use of Nicotinic Acid in the Treatment of Pellagra and Allied Conditions. PMID- 29013935 TI - A Dermoid Cyst in the Right Axilla. PMID- 29013937 TI - External Bursting of Strangulated Hernia. PMID- 29013936 TI - An Outbreak of Epidemic Dropsy. PMID- 29013938 TI - M. & B. 693 in Pneumococcal Infection: Two Cases. PMID- 29013939 TI - Medical News. PMID- 29013940 TI - Current Topics. PMID- 29013941 TI - Service Notes. PMID- 29013942 TI - Abstracts from Reports. PMID- 29013943 TI - The Sterility of the Syringe. PMID- 29013944 TI - Quinine and Atebrin in the Control of Malaria; with Special Emphasis on the Practical and Economic Viewpoints. PMID- 29013945 TI - Observations on Amoebiasis and Its Treatment. PMID- 29013946 TI - A Simple Method of Tomography. PMID- 29013947 TI - Haematological Technique. Part IV. PMID- 29013948 TI - Taking Blood for Transfusion. PMID- 29013949 TI - The Medical Profession and First Aid. PMID- 29013950 TI - A Simple and Efficient Remedy in the Treatment of Scabies. PMID- 29013951 TI - Streptococcus pyogenes in the Throats of a Sample of Healthy Individuals. PMID- 29013952 TI - The Mode of Origin and Progress of Anaemia in Pregnant Tea Garden Coolies. PMID- 29013953 TI - Role of Oblique Osteotomy of Upper End of Femur in Hip Joint Surgery. PMID- 29013954 TI - Natural Leptospiral Infection in the Rat Population of Calcutta. PMID- 29013955 TI - Service Notes. PMID- 29013956 TI - Drug Manufacture in India during Peace and War. PMID- 29013957 TI - Miniature Mass Radiography (A Plea for Its Adoption). PMID- 29013958 TI - Haematological Technique Part III. PMID- 29013959 TI - Vitex Peduncularis in the Treatment of Blackwater Fever. PMID- 29013960 TI - The Destruction of Air-Borne Bacteria. PMID- 29013961 TI - Role of X-Ray Screening in Detecting Pulmonary Tuberculosis. PMID- 29013962 TI - Crinodora (Palusan) in Indian Strains of Malaria. PMID- 29013963 TI - Role of Calcid Fumigation as a Raticidal and Pulicidal Measure in Anti-Plague Campaign. PMID- 29013964 TI - Note on the Production of Agglutinins in the Blood of Individuals after Peroral and Subcutaneous Vaccination by Typhoid and Paratyphoid Vaccines. PMID- 29013965 TI - Typhus Fever in Bombay. PMID- 29013966 TI - Comparison of Thymol and Some Other Drugs in the Treatment of Hookworm Infection. PMID- 29013967 TI - Provision of Latrine Accommodation in Villages. PMID- 29013969 TI - Coordination of the Medical Services. PMID- 29013968 TI - Haffkinine (Acriquine), an Atebrin-Like Compound Prepared in India, in Indian Strains of Malaria. PMID- 29013970 TI - Idiopathic Hypochromic Anaemia with a Case Note. PMID- 29013972 TI - Medical News. PMID- 29013971 TI - A Study on the Toxicity of the Bile Acids and Their Derivatives Prepared from Indian Ox Bile. PMID- 29013973 TI - Abstracts from Reports. PMID- 29013974 TI - Current Topics. PMID- 29013975 TI - The Relation of Liver to Other Diseases with Special Reference to Gastro Intestinal Disorders and Their Treatment with Intravenous Calcium. PMID- 29013976 TI - Haematological Technique. Part V. PMID- 29013977 TI - Notes on the Kala-Azar Research in China: The Use of 'Distibinyl' in the Treatment of Chinese Kala-Azar. PMID- 29013978 TI - Prophylactic Anti-Rabic Vaccine for Animals. PMID- 29013979 TI - Service Notes. PMID- 29013980 TI - Abstracts from Reports. PMID- 29013981 TI - Current Topics. PMID- 29013982 TI - A Case of Cerebro-Spinal Fever Cured by Sulphanilamide. PMID- 29013983 TI - Uterine Retroversion: A Commentary on the Indications for the Operative Correction of Retroversion of the Uterus, Unaccompanied by Prolapse- Illustrated by Six Cases. PMID- 29013984 TI - Respiratory Dyspnoea Following Administration of Barium Meal. PMID- 29013985 TI - Routine Treatment of Epilepsy, with Snake Venom. PMID- 29013986 TI - Congenital Cystic Disease of the Lungs. PMID- 29013987 TI - Abnormalities of the Suprarenal Gland and Addison's Disease. PMID- 29013989 TI - Erratum. AB - [This corrects the article on p. 175 in vol. 75.]. PMID- 29013988 TI - A Method of Removing a Tight Ring from a Finger. PMID- 29013990 TI - Wherein Lies the Activity of Sulphanilamide? PMID- 29013992 TI - Medical News. PMID- 29013991 TI - Use of Hemp Drugs in India. PMID- 29013993 TI - Observations on Gastric Acidity in Anaemia. PMID- 29013995 TI - The Problem of Drug Addiction. PMID- 29013994 TI - Report on Twenty-Four Cases of Tropical Macrocytic Anaemia in Punjabi Men. PMID- 29013996 TI - Bacterial Standards for Ice-Cream. PMID- 29013998 TI - Sulphonamides and Quinine. PMID- 29013997 TI - Service Notes. PMID- 29013999 TI - A Vitamin B Deficiency Syndrome Allied to Sprue. PMID- 29014000 TI - Quinine Sulphate for Intramuscular Injections. PMID- 29014002 TI - Medical News. PMID- 29014001 TI - Para-Sprue: A Study of 22 Cases. PMID- 29014004 TI - Animal Sera for Transfusion Purposes. PMID- 29014003 TI - Somatic Taeniasis (Solium Cysticercosis). PMID- 29014005 TI - Quinine and Alstonia Scholaris (Chhatim) in Malaria: A Study of Possible Synergy. PMID- 29014006 TI - A New Method of Artificial Respiration. PMID- 29014007 TI - Indian Degrees for Indian Graduates. PMID- 29014008 TI - Latent Tuberculosis in Medical Students of the King Edward Medical College, Lahore, Punjab. PMID- 29014009 TI - Current Topics. PMID- 29014010 TI - Bilateral Primary Carcinoma of the Fallopian Tubes. PMID- 29014011 TI - Para-Sprue. PMID- 29014012 TI - Macrocytic Anaemia: The Unknown Haemopoietic Factor in Whole Liver and Yeast. PMID- 29014013 TI - Leprosy Control: With Particular Reference to the Madras Presidency. PMID- 29014014 TI - A Case of Myasthenia Gravis. PMID- 29014016 TI - Indian Degrees for Indian Graduates. PMID- 29014015 TI - A Study of the Intradermal Test of Rotter for Vitamin C Status. PMID- 29014017 TI - Diet and Hepatitis. PMID- 29014019 TI - Erratum: Developing Gametocytes and Schizonts of Plasmodium Falciparum. AB - [This corrects the article on p. 458 in vol. 79.]. PMID- 29014018 TI - Kala-Azar in Bengal: Its Incidence and Trends. PMID- 29014020 TI - Ghee as a Source of Vitamin A in Indian Dietaries: The Effect of Cooking on the Vitamin Content of Foods. PMID- 29014021 TI - The Azygos Lobe. PMID- 29014022 TI - Tropical Ulcer in Angul, Orissa. PMID- 29014023 TI - Medical Education in India. PMID- 29014025 TI - Antimony in Malaria. PMID- 29014024 TI - The Influence of Intravenous Injections of Quinine on the Myocardium. PMID- 29014026 TI - Organization of Traumatic Surgery and Rehabilitation Service in India. PMID- 29014027 TI - Service Notes. PMID- 29014029 TI - Medical News. PMID- 29014028 TI - Substitute for Cedar Wood Oil for Oil Immersion Work. PMID- 29014030 TI - Oriental Sore: Atebrin Treatment. PMID- 29014032 TI - Current Topics. PMID- 29014031 TI - Nutritional Macrocytic Anaemia Amongst Vegetarians in Forward Areas in the Middle East Campaign. PMID- 29014033 TI - Treatment of Simian Malaria (P. Knowlesi) with Stilbamidine-M&B 744. PMID- 29014034 TI - Abstracts from Reports. PMID- 29014035 TI - The British National Health Service. PMID- 29014036 TI - A National Health Service. Government Proposals (The White Paper Summarized). PMID- 29014037 TI - Observations on Malaria Complicating Kala-Azar. PMID- 29014039 TI - Treatment in the Rickettsial Diseases. PMID- 29014038 TI - An Unusual Accident. PMID- 29014040 TI - Pseudo-Tuberculosis of the Lungs with Eosinophilia, or Benign Eosinophil Leukaemia. PMID- 29014041 TI - Current Topics. PMID- 29014042 TI - Wounds of the Extremities. PMID- 29014043 TI - A Case of Lymphosarcoma of the Ileum. PMID- 29014044 TI - Determination of Blood Groups from Meals of Blood-Sucking Insects. PMID- 29014045 TI - Primary Pneumococcal Sero-Fibrinous Pleurisy. PMID- 29014046 TI - Tetanus Neonatorum in the Tropics-A Suggestion for Its Reduction. PMID- 29014047 TI - Talipes Equino-Varus. PMID- 29014049 TI - Medical News. PMID- 29014048 TI - Smallpox in Kweilin, Kwangsi, 1940-1941. An Epidemiological and Clinical Study. PMID- 29014051 TI - Wheat and the War. PMID- 29014050 TI - Chemical Method of Obtaining Dry Blood Proteins for Transfusion Purposes. PMID- 29014052 TI - Humero-Scapular Periarthritis. PMID- 29014053 TI - A Neurotic Guilt-Complex Uncovered. PMID- 29014054 TI - Pyrogenic Reactions Following Intravenous Saline Infusions. PMID- 29014055 TI - Service Notes. PMID- 29014056 TI - Smallpox in Calcutta. PMID- 29014057 TI - Tuberculosis in India. PMID- 29014058 TI - Polyneuritis with Special Reference to the Acute Varieties. PMID- 29014059 TI - Vitamin B Deficiency States among Women in Mysore: A Survey of Cases Admitted into Female Medical Wards, Krishnarajendra Hospital, Mysore, during 1943. PMID- 29014060 TI - Infarction Following the Use of an Abortifacient. PMID- 29014061 TI - Bacterium Alcaligenes Infection. PMID- 29014062 TI - The Status of Physiology. PMID- 29014063 TI - Investigation on Undulant Fever in the City of Bombay. PMID- 29014064 TI - Service Notes. PMID- 29014065 TI - Bactericidal and Fungicidal Action of Organic Mercurials: With Special Reference to the Dermatomycoses. PMID- 29014066 TI - A Method for Determining the Temperature of Autoclaves during Sterilization. PMID- 29014067 TI - Thymoma. PMID- 29014068 TI - Regulation of the Control of Anopheles of the Fluviatilis-Group by Anti-Adult Spraying. PMID- 29014070 TI - Current Topics. PMID- 29014069 TI - Discoloured Cholesterol and Wassermann Antigen: Decreased Fortifying Effect Restored by Recrystallization and Washing in Alcohol. PMID- 29014071 TI - Pregnancy in a Rudimentary Uterine Horn. PMID- 29014072 TI - Intestinal Flora and Nutrition. PMID- 29014073 TI - Ventricular Tachycardia of Long Duration (Twenty Days) with Recovery. PMID- 29014074 TI - Intestinal Flora and Vitamin B1. PMID- 29014075 TI - A Preliminary Note on the Preparation of Anti-Rh Agglutinin. PMID- 29014076 TI - Medical News. PMID- 29014078 TI - Erratum: Influence of Milk Powder on Fluorine Intoxication in Rats. AB - [This corrects the article on p. 249 in vol. 79.]. PMID- 29014077 TI - A Study of 10,000 Deliveries. PMID- 29014079 TI - Abstracts from Reports. PMID- 29014081 TI - Primary Atypical Pneumonia. PMID- 29014080 TI - Liver Function in Amoebiasis and Its Variations under Emetine Therapy. PMID- 29014082 TI - Epidemiology of Cholera in the Punjab. PMID- 29014083 TI - Malignant Tumours of the Kidney: Report of a Case of Tubular Adenocarcinoma of the Kidney. PMID- 29014084 TI - Malaria in the New-Born. PMID- 29014085 TI - Sulphanilamide in a Case of Abdominal Injury. PMID- 29014086 TI - Cardio-Vascular Syphilis. PMID- 29014087 TI - Transmission of Kala-Azar in India: The Case against the Sandfly. PMID- 29014089 TI - Medical News. PMID- 29014088 TI - Cerebral Malaria: Pathogenesis, Symptoms and Treatment. PMID- 29014090 TI - The Preparation of Manure with Night-Soil and Street Rubbish. PMID- 29014092 TI - Abstracts from Reports. PMID- 29014091 TI - Angioneurotic OEdema Produced by Sulphathiazole. PMID- 29014093 TI - The Value of D.E.C. Medium in the Isolation of Intestinal Pathogens. PMID- 29014094 TI - The Early Diagnosis of Kala-Azar. PMID- 29014095 TI - Anacidity in Gastric Cancer. PMID- 29014096 TI - Developing Gametocytes and Schizonts of Plasmodium Falciparum: A Case Showing All Stages in the Peripheral Circulation. PMID- 29014097 TI - The Value of the Complement-Fixation Test in the Diagnosis of Kala-Azar. PMID- 29014099 TI - Current Topics. PMID- 29014098 TI - The Quality of Indian-Made Synthetic Drugs. II: Examination of Iodochlorhydroxy Quinoline (Enterovioform) of Indian Manufacture. PMID- 29014100 TI - Phenamidine in the Treatment of Kala-Azar. PMID- 29014101 TI - Fluorine and Fluorosis. PMID- 29014103 TI - The Treatment of Mental Disorders Ry Electrically Induced Convulsions. PMID- 29014102 TI - A Case of Miliary Tuberculosis of Serous Membranes with a Non-Tuberculous Brain Abscess. PMID- 29014105 TI - Blackwater Fever and Methaemalbumin. PMID- 29014104 TI - Professor Sir Ram Nath Chopra and the Growth of Pharmacology in India. PMID- 29014106 TI - Pyrogenic Reactions Following Intravenous Saline Infusions. PMID- 29014108 TI - Intravenous Transfusions in Cholera and Other Conditions: A Note on Technique. PMID- 29014107 TI - Complement Fixation in Kala-Azar with the WKK Antigen. PMID- 29014109 TI - Service Notes. PMID- 29014110 TI - An Unusual Case of Coma. PMID- 29014111 TI - Chloroform in Cases of Scorpion Bite. PMID- 29014112 TI - Epidemic of Typhoid Fever in Surat. PMID- 29014113 TI - Effort Syndrome. PMID- 29014114 TI - Repetition of the Wassermann Reaction. PMID- 29014115 TI - A Case of Typhus Fever Complicating Kala-Azar in Calcutta. PMID- 29014116 TI - Sulphadiazine in the Treatment of Bubonic Plague. PMID- 29014117 TI - Naga Sore in Jamnagar. PMID- 29014118 TI - On the Efficacy of 'Butyl Acridine' in the Treatment of Malaria: A Preliminary Note. PMID- 29014120 TI - Infarction Following the Use of an Abortifacient. PMID- 29014119 TI - The Wassermann Positive Rate of Cases from Hospitals and Venereal Clinics of Calcutta in 1939, 1943 and 1944. PMID- 29014121 TI - OEdema and Scabies in a Famine Hospital. PMID- 29014122 TI - Seasonal Variation in Crime. PMID- 29014123 TI - A Case of Benign Tertian Malaria. PMID- 29014124 TI - Vitamin-B1 Deficiency. PMID- 29014125 TI - The Laboratory in Medical Practice. PMID- 29014126 TI - Epitheliomas of the Palate Caused by Smoking of Cigars with the Lighted End inside the Mouth. PMID- 29014127 TI - A Case of Syphilis of the Stomach. PMID- 29014129 TI - Struma Lymphomatosa (Lymphadenoid Goitre: Hashimoto's Disease): A Study of Four Cases. PMID- 29014128 TI - Formic and Acetic Acids as Poisons. PMID- 29014130 TI - The Position of Medical Science in India. PMID- 29014131 TI - Struma Lymphomatosa (Hashimoto): A Report of Five Cases. PMID- 29014132 TI - Medical Science in India. PMID- 29014133 TI - Inanition Cases: A Report. PMID- 29014134 TI - A Butyl Acridine Derivative in 'Intestinal Giardiasis': A Preliminary Note. PMID- 29014135 TI - Service Notes. PMID- 29014136 TI - Malaria in Infants. PMID- 29014137 TI - Current Topics. PMID- 29014138 TI - Abstracts from Reports. PMID- 29014139 TI - Medical News. PMID- 29014140 TI - Serum Transfusions in Air-Raid Casualties in South-East Bengal. PMID- 29014141 TI - On the Possibility of Using Oil of Turpentine for the Treatment of Scabies. PMID- 29014142 TI - Syphilitic Melanosis. PMID- 29014143 TI - Hydatid Disease in the Punjab. PMID- 29014144 TI - A Bacteriological Study of Curdled Milk (Dahi). PMID- 29014145 TI - Gastric Acidity in Health and Disease in India. PMID- 29014146 TI - Erratum: Wheeler and Jack's Handbook of Medicine. AB - [This corrects the article on p. 55c in vol. 73.]. PMID- 29014147 TI - The Opium Smoking Habit in India. Part I. General Survey. PMID- 29014148 TI - The Radiological Examination of the Stomach and Duodenum. PMID- 29014150 TI - The Organism and the Environment. PMID- 29014149 TI - Abstracts from Reports. PMID- 29014152 TI - Medical News. PMID- 29014151 TI - A Crying Need for a Pharmacy Act in India. PMID- 29014153 TI - Service Notes. PMID- 29014154 TI - Perforation of the Ileum in Suspected Ambulatory Typhoid Treated with Establishment of Drainage and Foecal Fistula and Subsequent Enterectomy. PMID- 29014155 TI - The Physiology of the Individual in the Tropics Part II. PMID- 29014156 TI - The King-Emperor's Fund. PMID- 29014157 TI - Arteriography. PMID- 29014158 TI - An Unusual Case of Multiple Stones in the Ureter. PMID- 29014159 TI - Unusual Case of Urethral Stone. PMID- 29014160 TI - Quinine Tolerance in Pregnancy. PMID- 29014161 TI - Current Topics. PMID- 29014162 TI - A Sub-Phrenic Abscess. PMID- 29014163 TI - Salyrgan in Phlegmasia Alba Dolens. PMID- 29014165 TI - A Case of Scarlet Fever. PMID- 29014164 TI - Spontaneous Infection of Guinea-Pigs with a Spirillum, Presumably Spirillum Minus Carter, 1887. PMID- 29014166 TI - Adult Haemoglobin Standards in Burma. PMID- 29014168 TI - Service Notes. PMID- 29014167 TI - The Specific Treatment of Malaria. PMID- 29014169 TI - Ichthyol as a Treatment for Guinea-Worm. PMID- 29014171 TI - Greasing the Scalp in Hyperpyrexia. PMID- 29014170 TI - Anginal Pain in a Case of Malaria. PMID- 29014172 TI - Anti-Malarial Measures in the Railway Area at Delhi. PMID- 29014173 TI - Dry Cupping and Its Sequel. PMID- 29014175 TI - Disaster and Its Moral. PMID- 29014174 TI - History of Immunization against Tuberculosis. PMID- 29014176 TI - On the Illustration of the Rheumatic Processes in a Modern Museum of Pathology. PMID- 29014177 TI - Incidence of Bronchiectasis in Asthma. PMID- 29014178 TI - Current Topics. PMID- 29014180 TI - Abstracts from Reports. PMID- 29014179 TI - Prontosil in Pyelo-Cystitis and Erysipelas. PMID- 29014181 TI - A Retro-Peritoneal Suppurating Dermoid in the Region of the Kidney. PMID- 29014182 TI - Probable Ring Carcinoma of the Descending Colon; Mango Fibres Obstructing the Ring and Causing Complete Obstruction. PMID- 29014183 TI - The Hydrogen-Ion Concentration of Human Faeces. PMID- 29014184 TI - Present Position of the Opium Smoking Habit in India. Part II: Preparations of Opium Used for Smoking and Mode of Indulgence. PMID- 29014185 TI - Medical News. PMID- 29014186 TI - Service Notes. PMID- 29014187 TI - The Research Workers' Conference and Medical Research in India. PMID- 29014188 TI - Siphunculina Funicola (Eye-Fly). PMID- 29014189 TI - An Interesting Case of Sub-Tertian Malaria. PMID- 29014190 TI - A Remarkable Natural Cure of Strangulated Hernia. PMID- 29014191 TI - The Chemotherapy of Streptococcal Infections. PMID- 29014192 TI - The Physiology of the Individual in the Tropics. Part I. PMID- 29014193 TI - Development of Health Education Work in United Provinces. PMID- 29014195 TI - Appendicitis in a Case of Transposition of Viscera. PMID- 29014194 TI - Some Recent Advances in Surgery. PMID- 29014196 TI - Some Unusual Joint Lesions. PMID- 29014198 TI - Current Topics. PMID- 29014197 TI - A New Filarial Worm from a Human Being. PMID- 29014199 TI - Management of Head Injury Cases in Rural Practice. PMID- 29014201 TI - Treatment of Ganglion. PMID- 29014200 TI - Myeloid Leukaemia Treated by Deep X-Ray Therapy. PMID- 29014202 TI - Adult Filarial Worm of Unknown Species Removed from the Skin of a Human Subject. PMID- 29014203 TI - Medical News. PMID- 29014204 TI - Sternum Puncture. I. The Findings in Normal Indians. PMID- 29014205 TI - Experiments on the Spirillum of Rat-Bite Fever. PMID- 29014206 TI - Abstracts from Reports. PMID- 29014207 TI - Medical Statistics. PMID- 29014208 TI - A Lingual Abscess. PMID- 29014209 TI - Bertiella studeri, a Natural Tape-Worm Parasite of Monkeys, in a Hindu Child. PMID- 29014210 TI - The Ergot Problem and the Practitioner. PMID- 29014212 TI - Current Topics. PMID- 29014211 TI - A Clinical Investigation on the Value of Proseptasine as a Prophylactic in Puerperal Infection. PMID- 29014213 TI - Abstracts from Reports. PMID- 29014214 TI - The Treatment of Ascariasis. PMID- 29014215 TI - Post-Arsphenamine Blood Dyscrasias. PMID- 29014216 TI - Medical News. PMID- 29014217 TI - Control of Stegomyia fasciata (AEdes AEgypti) Mosquitoes in Indian Country Craft by a Mosquito-Proof Metal Cap (Bennett Pattern) for Drinking-Water Receptacles. PMID- 29014218 TI - An Unusual Case of Abortion Treated by Curetting. PMID- 29014219 TI - Service Notes. PMID- 29014220 TI - A Simple Method of Obtaining Hyper-Extension for the Application of a Plaster of Paris Jacket in Cases of Fracture of the Thoracic and Lumbar Vertebrae. PMID- 29014221 TI - Simple Fractures and Dislocations of the Astragalus. PMID- 29014222 TI - Premedication in Sodium Evipan Anaesthesia-A Study of 535 Cases. PMID- 29014224 TI - Cinchona Supplies in India. PMID- 29014223 TI - On the Necessity of Teaching the Frequency of Rheumatic Infection in Young Indians. PMID- 29014225 TI - Treatment of Schizophrenia by Inducing Epileptiform Shocks by the Drug Cardiazol: An Experimental Study of 42 Cases. PMID- 29014226 TI - The Hydrogen-Ion Concentration of Cholera Stools. PMID- 29014228 TI - Medical News. PMID- 29014227 TI - Observations on the Mottled Condition of Human Teeth Endemic in a Certain Locality of Nagercoil in Travancore, S. India. PMID- 29014230 TI - Current Topics. PMID- 29014229 TI - An Obstetric Cot. PMID- 29014231 TI - A Case of Hypernephroma of the Kidney with Secondaries in the Os Calcis and the Brain. PMID- 29014232 TI - Malaria in Relation to the Coastal Lagoons of Bengal and Orissa. PMID- 29014234 TI - World Distribution of Disease : The Changing Picture. PMID- 29014233 TI - Experiments on the Stability of Seminal Stains from a Medico-Legal Standpoint. PMID- 29014235 TI - A Note on the Therapeutic Efficiency of Soluseptasine in Simian Malaria (P. Knowlesi). PMID- 29014236 TI - Cholera Epidemics in Burma and the Type of Vibrio Associated with Them. PMID- 29014238 TI - Protamine Zinc Insulin. PMID- 29014237 TI - Vibrio Cholerae from Material Obtained by Liver Puncture during Life. PMID- 29014239 TI - Colour Perception, and Colour-Blindness Tests. PMID- 29014240 TI - Some Observations Concerning the Recent Typhoid Epidemic in Calcutta: With a Note on Typhoid Myocarditis. PMID- 29014241 TI - Anahaemin in Tropical Macrocytic Anaemia. PMID- 29014242 TI - A Rat-Flea Survey of Mattanchery (Cochin) (1937). PMID- 29014243 TI - Early Ophthalmologists in Calcutta. PMID- 29014244 TI - Abstracts from Reports. PMID- 29014246 TI - Service Notes. PMID- 29014245 TI - Present Position of Anti-Malarial Drug Therapy in India. PMID- 29014247 TI - Epidermolysis Bullosa: A Case Report. PMID- 29014248 TI - The Treatment of Animals with Antirabic Vaccine. PMID- 29014249 TI - The Use of Cobra Venom in Nerve Leprosy. PMID- 29014250 TI - Effect of Large Doses of Prontosil. PMID- 29014251 TI - Incisional Hernia. PMID- 29014253 TI - Diet in Typhoid Fever. PMID- 29014252 TI - A Case of Congenital Local Gigantism. PMID- 29014255 TI - Enumerative Studies in Benign Tertian Malaria. PMID- 29014254 TI - Multiple Perforations of Small Intestine with Recovery. PMID- 29014256 TI - A Huge Lipoma of the Breast. PMID- 29014257 TI - Hobbs' Treatment with Glycerine Applied to Male Urethra in Gonorrhoea. PMID- 29014258 TI - Induction of Labour. PMID- 29014259 TI - Fulminant Case of Ulcerative Endocarditis. PMID- 29014261 TI - Current Topics. PMID- 29014260 TI - Investigation and Conservative Treatment of the Nasal Factor in Asthma. PMID- 29014262 TI - Service Notes. PMID- 29014263 TI - Follow-Up of a Mass Treatment with Injectable Atebrin. PMID- 29014264 TI - Care and After-Care of the Tuberculous. PMID- 29014266 TI - Abstracts from Reports. PMID- 29014265 TI - Filariasis in the Mikir Hills. PMID- 29014267 TI - Traumatic Dislocation of Hip. PMID- 29014268 TI - Report of a Case of Early Acquired Syphilis in a Patient with Tertiary Stigmata of Untreated Yaws. PMID- 29014269 TI - Cardio-Spasm of the OEsophagus. PMID- 29014270 TI - Fifty Years of Synthetic Pharmaceutical Research. PMID- 29014272 TI - Medical News. PMID- 29014271 TI - The Incurables. PMID- 29014273 TI - Siphunculina Funicola. PMID- 29014274 TI - A Study of the Dietary Habits of Some Communities Living at Calcutta. PMID- 29014275 TI - A Case of Adrenal Insufficiency Simulating the Adams-Stokes' Syndrome. PMID- 29014276 TI - Leptospirosis. PMID- 29014277 TI - Some Clinical Aspects of Anaemia in Pregnancy in Indian Women Living in Bengal. PMID- 29014278 TI - A Method of Anti-Larval Oiling for Rivers. PMID- 29014279 TI - The Anaemias in Pregnancy: A Haematological, Clinical and Statistical Study. PMID- 29014281 TI - Abstracts from Reports. PMID- 29014280 TI - Spinal Tumour and Its Diagnosis. PMID- 29014283 TI - Medical News. PMID- 29014282 TI - A Case of Staphylococcal Polyarthritis. PMID- 29014284 TI - Cashew Fruit and Vitamin C. PMID- 29014286 TI - Service Notes. PMID- 29014285 TI - Aphasia and Complete Right Hemiplegia after Scorpion Bite. PMID- 29014287 TI - Mauled by a Leopard. PMID- 29014288 TI - Use of Proseptasine in Cellulitis of the Arm. PMID- 29014289 TI - The Specific Gravity of Serum of Epidemic Dropsy Patients. PMID- 29014290 TI - Short Note on an Epidemic of Chicken Pox in the Central Jail, Cannanore. PMID- 29014291 TI - A Case of Chopart's Amputation after 15 Years. PMID- 29014292 TI - The Incidence of Rheumatic Infection in India: (As Judged by the Admission and Post-Mortem Rates and by the Clinical Experience of Teaching Physicians at the Medical Colleges and Schools of Indla): Part II. PMID- 29014293 TI - Diet and the Incidence of Disease in India. PMID- 29014294 TI - The Guinea-Pig in the Laboratory Diagnosis of Tuberculosis. PMID- 29014296 TI - Current Topics. PMID- 29014295 TI - Medical Practice in Bengal. PMID- 29014297 TI - The Drug Control Bill. PMID- 29014298 TI - A Pedicled and Pendulous Lipoma of the Perinaeum. PMID- 29014299 TI - A Case of Ascaris Lumbricoides Infection Simulating Cerebral Type of Malaria. PMID- 29014300 TI - Abstracts from Reports. PMID- 29014301 TI - A Case Note on Cancrum Oris Following Pneumonia Treated by Prontosil. PMID- 29014303 TI - Current Topics. PMID- 29014302 TI - Medical News. PMID- 29014304 TI - The Treatment of Lobar Pneumonia. PMID- 29014305 TI - Oxycephaly. PMID- 29014306 TI - Cinchona Febrifuge in the Treatment of Malaria. PMID- 29014307 TI - Preliminary Report on an Experiment in Coolie-Line Sanitation. PMID- 29014308 TI - A Cholera Epidemic in Swat State, N. W. F., 1937. PMID- 29014309 TI - A Case of Repeated Abortion Treated with Vitamin E and Proluton. PMID- 29014310 TI - A Case of Pellagra Successfully Treated with Intravenous Injections of Sodium Thiosulphate. PMID- 29014311 TI - An Apparatus for Continuous Oiling of Streams. PMID- 29014312 TI - Convulsion Therapy in Schizophrenia. PMID- 29014313 TI - Latent Syphilis in the Tropics. PMID- 29014314 TI - A Case of Lower Segment Caesarean Section. PMID- 29014315 TI - The Bacteriological Examination and the Hydrogen-Ion Concentration of the Urine of a Series of 122 Cholera Patients. PMID- 29014316 TI - Ectopic Kidney Simulating Ovarian Tumour. PMID- 29014317 TI - Service Notes. PMID- 29014318 TI - Mental Hygiene and Its Significance. PMID- 29014319 TI - A Note on Racial Variations in Leprosy with Particular Reference to Indian and Burmese Races. PMID- 29014321 TI - Anti-Mosquito Measures in Cantonments with Special Reference to 'Dry Day' Instituted in 1927. PMID- 29014320 TI - A Case of Tabes Dorsalis in a Hindu. PMID- 29014322 TI - Suspected Botulism: A Report on Two Cases. PMID- 29014323 TI - Prawns as a Possible Vector of V. Cholerae. PMID- 29014325 TI - The Subcutaneous Nodule of Rheumatism. PMID- 29014324 TI - Herpes Zoster: Experiments with Tissue Lysate as a Therapeutic Agent. PMID- 29014326 TI - The Incidence of Rheumatic Infection in India: (As Judged by the Admission and Post-Mortem Rates and by the Clinical Experience of Teaching Physicians at the Medical Colleges and Schools of India). Part I. PMID- 29014327 TI - Current Topics. PMID- 29014329 TI - Gastric Cancer in a Girl of 19. PMID- 29014328 TI - Present Position of the Opium Smoking Habit in India. Part III: Studies on the Physical and Mental Effects Produced by Opium Smoking. (An Analytical Review of 300 Opium Smokers Examined in the Field). PMID- 29014330 TI - Hydatid Disease. PMID- 29014331 TI - A Pseudo-Malignant Tumour of the Ileo-Caecal Region. PMID- 29014332 TI - Typhoid Fever Presenting Some Unusual Features. PMID- 29014334 TI - Medical News. PMID- 29014333 TI - A Case of Breast Cancer in a Male. PMID- 29014335 TI - Modified Technique for Phrenic Evulsion. PMID- 29014336 TI - Pistia Stratiotes and MF. Malayi. PMID- 29014338 TI - Regional Ileitis. PMID- 29014337 TI - The Treatment of Splenomegaly by Injections of Milk. PMID- 29014339 TI - A Case of Jejunal Diverticulosis. PMID- 29014340 TI - Correspondence. PMID- 29014341 TI - Conditioned Reflexes. PMID- 29014342 TI - Abstracts from Reports. PMID- 29014343 TI - Service Notes. PMID- 29014344 TI - Siphunculina Funicola (Eye-Fly). PMID- 29014346 TI - Service Notes. PMID- 29014345 TI - Bacteriophage Treatment of Dysentery in Private Practice. PMID- 29014347 TI - King George Thanksgiving (Anti-Tuberculosis) Fund. PMID- 29014348 TI - Medical News. PMID- 29014349 TI - The Special Tuberculosis Number. PMID- 29014350 TI - A Study of the Anti-Tuberculosis Activities in the West, with Some Suggestions for the Campaign against Tuberculosis in India. PMID- 29014351 TI - Methods of Destruction of Tubercle Bacilli in the Sputum for Use in Indian Homes, with Some Experiments. PMID- 29014352 TI - B. C. G. Vaccination in Practice. PMID- 29014355 TI - The Campaign against Tuberculosis in Italy. PMID- 29014354 TI - Role of Solaria in Anti-Tuberculosis Work. PMID- 29014353 TI - Anti-Tuberculosis Work in Bengal. PMID- 29014356 TI - Abstracts from Reports. PMID- 29014357 TI - Deductions from Experience in a Tuberculosis Ex-Patients' Colony in India. PMID- 29014358 TI - The Seriousness of Tuberculosis in India as Shown by a Study of Incidence and Type. PMID- 29014360 TI - A Note for the Guidance of Provincial Organizations. PMID- 29014359 TI - Tuberculosis in the Zenana. PMID- 29014361 TI - A Time Limit for Using Bacteriophages. PMID- 29014362 TI - Incidence of Pulmonary Tuberculosis in the Punjab Villages. PMID- 29014363 TI - Illustrations Explaining an Article on 'Siphunculina Funicola (Eye-Fly)'. PMID- 29014364 TI - Peptic Ulcer in Northern Circars. A Note on the Incidence. PMID- 29014365 TI - Erratum: Bertiella Studeri, a Natural Tape-Worm Parasite of Monkeys, in a Hindu Child. AB - [This corrects the article on p. 346a in vol. 73.]. PMID- 29014366 TI - Leptospirosis in India. PMID- 29014367 TI - The Effect on Rats of Supplementing a North Indian Diet with Vegetable Proteins (Sprouting Pulses) and Calcium. PMID- 29014369 TI - Medical News. PMID- 29014368 TI - Treatment of Phrynoderma by Vitamin-A Concentrate. PMID- 29014370 TI - Studies on the Potency of Prophylactic Vaccines. 1. Cholera Vaccine. PMID- 29014371 TI - Benzedrine: Its Use and Abuse. PMID- 29014372 TI - Two Cases of Treponemal Infection Treated with Paritran Preparations. Case 2. PMID- 29014373 TI - Vitamin B and Peptic Ulcer. PMID- 29014374 TI - Abstracts from Reports. PMID- 29014375 TI - Volvulus as a Cause of Intestinal Obstruction. PMID- 29014376 TI - Current Topics. PMID- 29014377 TI - A Case of Extensive Scalding Treated with Cod-Liver Oil Dressing. PMID- 29014378 TI - Spinal Anaesthesia. PMID- 29014379 TI - Spontaneous Subarachnoid Haemorrhage. PMID- 29014380 TI - Two Cases of Treponemal Infection Treated with Paritran Preparations. Case 1. PMID- 29014381 TI - A Lympho-Sarcoma in the Bladder. PMID- 29014383 TI - Service Notes. PMID- 29014382 TI - Variations in the Platelet Count in Typhus Associated with Haematuria. PMID- 29014384 TI - Vibrios from Certain Non-Human Sources. PMID- 29014385 TI - A Case of Spontaneous Haematomyelia. PMID- 29014386 TI - Studies on the Action of Synthetic Drugs on Simian Malaria: Sulphonamide Derivatives. PMID- 29014387 TI - The Surgical Treatment of Epidemic Dropsy Glaucoma. PMID- 29014388 TI - Spondylolisthesis. PMID- 29014389 TI - Thyroid Metastases in Bone. PMID- 29014392 TI - Abstracts from Reports. PMID- 29014390 TI - Chloroform as a Local Anaesthetic. PMID- 29014391 TI - Some Epidemiological Features of Plague in Bengal with Special Reference to Calcutta. PMID- 29014394 TI - Profession of Pharmacy in India. PMID- 29014393 TI - The Mortality of Operations for Vesical Calculus in India. PMID- 29014395 TI - A Case of Tape-Worm Simulating Acute Appendicitis. PMID- 29014396 TI - A Gas Mask for Post-Mortem Work. PMID- 29014397 TI - Chemotherapy in Acute Surgical Infections with Prontosil and Allied Drugs. PMID- 29014398 TI - Homicide by a Patient Apparently Suffering from Cerebral Malaria. PMID- 29014399 TI - Medical News. PMID- 29014400 TI - Blood Culture in Cholera. PMID- 29014401 TI - Erratum: Latent Syphilis in the Tropics. AB - [This corrects the article on p. 585 in vol. 73.]. PMID- 29014402 TI - Some Observations of Practical Importance and Interest for the Malariologist. PMID- 29014403 TI - Studies on the Action of Synthetic Antimalarial Drugs on Indian Strains of Malaria: Cilional in the Treatment of 'Crescent Carriers'. PMID- 29014404 TI - Spontaneous Rupture of the Heart. PMID- 29014405 TI - Anahaemin in Tropical Macrocytic Anaemia. PMID- 29014407 TI - Congenital Absence of Eyeballs. PMID- 29014406 TI - An Ambulatory Case of Fracture of the Lumbar Vertebrae. PMID- 29014409 TI - Current Topics. PMID- 29014408 TI - Pre-Cancerous Conditions of the Cervix Uteri and Their Treatment. PMID- 29014410 TI - The Isolation of Vibrio cholerae from Non-Cholera Individuals. PMID- 29014411 TI - Observation on the Aetiology of Diseases. PMID- 29014412 TI - Erratum: Editorial-May 1955. AB - [This corrects the article on p. 207 in vol. 90.]. PMID- 29014413 TI - A Survey of Renal Glycosuria in Indians. PMID- 29014414 TI - Fifty Years Ago. PMID- 29014415 TI - Some Observations on the Stability of Vitamin C. PMID- 29014416 TI - Twenty Five Years Ago. PMID- 29014418 TI - Seventy Five Years Ago. PMID- 29014417 TI - Refresher Course Series Anaemias-Classification. PMID- 29014419 TI - Current Topics, Etc. PMID- 29014420 TI - My Pets in India. PMID- 29014421 TI - Medical News. PMID- 29014422 TI - Freud. PMID- 29014424 TI - The Bhakra-Nangal Project. PMID- 29014423 TI - Polyarteritis Nodosa. PMID- 29014425 TI - The Present State of Knowledge Regarding Biosynthesis of B-Complex Vitamins. PMID- 29014426 TI - Estimation of Protein-Proteoses in Crude Liver Extracts for Parenteral Use. PMID- 29014428 TI - Twenty Five Years Ago. PMID- 29014427 TI - Correspondence. PMID- 29014429 TI - Current Topics, Etc. PMID- 29014430 TI - Fifty Years Ago. PMID- 29014432 TI - Synthetic Antimalarials. PMID- 29014431 TI - Bacteriological Diagnosis of Suspected Cholera Cases in the Declining Period of an Epidemic. PMID- 29014433 TI - Seventy Five Years Ago. PMID- 29014434 TI - Fifty Years Ago. PMID- 29014436 TI - Seventy-Five Years Ago. PMID- 29014435 TI - A System of Automassage. PMID- 29014437 TI - Twenty-Five Years Ago. PMID- 29014439 TI - Medical Benefits under Employees' State Insurance Scheme. PMID- 29014438 TI - Furniture in the Tropics. PMID- 29014440 TI - The Physician and the Pharmacist. PMID- 29014441 TI - Medical News. PMID- 29014442 TI - Current Topics, Etc. PMID- 29014443 TI - An Unusual Complication during Suprapubic Prostactamy. PMID- 29014444 TI - State Notifications. PMID- 29014445 TI - Hormones from Indian Yams. PMID- 29014446 TI - Lupus Erythematosus and Collagen Diseases. PMID- 29014447 TI - The Total and Differential Leucocyte Count in Brucellosis. PMID- 29014448 TI - Bacterial Antagonism between Bacterium Coli and Common Intestinal Pathogens. PMID- 29014449 TI - Erratum: An Observation in Photography with X-Ray Films. AB - [This corrects the article on p. 556 in vol. 87.]. PMID- 29014451 TI - A Review of Ringworm of the Hair in India. PMID- 29014450 TI - Stevens-Johnson Syndrome Report of a Case Treated with Aureomycin. PMID- 29014452 TI - A Case of Post-Kala-Azar Dermal Leishmaniasis. PMID- 29014453 TI - A Case of Oriental Sore in Assam. PMID- 29014454 TI - Fifty Years Ago. PMID- 29014456 TI - Critical Reviews on Tropical Diseases. PMID- 29014455 TI - Ectopic Kidney on the Pelvic Brim with Rare Anomalies in the Vascular Arrangement. PMID- 29014457 TI - Medical News. PMID- 29014458 TI - Identification of Relapsing Fever Spirochaetes. PMID- 29014459 TI - A Case of Megacolon. PMID- 29014460 TI - The Wassermann Reaction in the Tropics. PMID- 29014461 TI - Tuberculosis of the Breast. PMID- 29014462 TI - Current Topics, Etc. PMID- 29014463 TI - Findings in 679 Cases of Kala-Azar in Santal Parganas. PMID- 29014464 TI - A Note on the Epidemiology of Cholera and Suggested Lines of Investigation. PMID- 29014466 TI - Fifty Years Ago. PMID- 29014465 TI - Chloromycetin in Typhoid. PMID- 29014467 TI - A Case of Amoebic Abscess of the Liver Treated with Resochin (Chloroquine). PMID- 29014468 TI - Intrapleural Pressures on the Contralateral Side in Pleurisy with Effusion. PMID- 29014470 TI - World Medicine and Its Links. PMID- 29014469 TI - An Unusual Case of Ring-Worm Infection-A Case Report. PMID- 29014471 TI - Aureomycin in Brucellosis. PMID- 29014472 TI - Untoward (Anaphylactoid) Reaction in I. V. Iron Therapy. PMID- 29014473 TI - A Note on the Use and Efficiency of Graded Tuberculin Test in Case Finding and Estimation of Prevalence Rate of Pulmonary Tuberculosis. PMID- 29014475 TI - Current Topics, Etc. PMID- 29014474 TI - Plasma Cytoma. PMID- 29014476 TI - Studies in Endemic Fluorosis: Visakhapatnam and Suburban Areas: Distribution of Fluorine in Local Waters. PMID- 29014477 TI - Medical News. PMID- 29014478 TI - Electrical Activity of Epileptic Brains (Study of 150 Cases). PMID- 29014480 TI - Fifty Years Ago. PMID- 29014479 TI - Angioma of the Vertebra. PMID- 29014481 TI - Critical Reviews of Tropical Medicine. PMID- 29014482 TI - Chemotherapy of Leishmanial Diseases, a Resume of Recent Researches. PMID- 29014483 TI - Chemotherapy of Malaria with Special Reference to the Work Done in India. PMID- 29014484 TI - Chemotherapy of Leprosy. PMID- 29014485 TI - Erratum: Fifty Years Ago. AB - [This corrects the article on p. 51b in vol. 88.]. PMID- 29014486 TI - Review on the Study of the Skin Diseases in Animals Communicable to Man. PMID- 29014488 TI - Any Question. PMID- 29014487 TI - Critical Reviews on Tropical Diseases. PMID- 29014489 TI - Medical News. PMID- 29014490 TI - The Central Control of the Blood Pressure. PMID- 29014491 TI - Case Notes of Scabies in a Family Transmitted from Goats. PMID- 29014492 TI - Fifty Years Ago. PMID- 29014493 TI - Aetiological Role of Toxic Oils in Epidemic Dropsy a Review. PMID- 29014494 TI - ACTH Therapy in Pemphigus Vulgaris. PMID- 29014495 TI - Erratum: An Observation in Photography with X-Ray Films. AB - [This corrects the article on p. 556 in vol. 87.]. PMID- 29014497 TI - Current Topics, Etc. PMID- 29014496 TI - Review on DDT and BHC-The Two New Synthetic Insecticides with Their Principles and Practices. PMID- 29014498 TI - A Note on the Lepehne-Pickworth Stain. PMID- 29014499 TI - Dimorphic Anaemia. PMID- 29014500 TI - Kertoderma Blenorrhagica. PMID- 29014501 TI - Current Topics, Etc. PMID- 29014502 TI - Errata of Dimorphic Anaemia. AB - [This corrects the article on p. 126 in vol. 88.]. PMID- 29014503 TI - Relative Health of Women in Indian Cities. PMID- 29014504 TI - Osteogenesis Imperfecta in a Family. PMID- 29014505 TI - Normal Haematological Values in Young Punjabi Females. PMID- 29014506 TI - Cases of Myiasis in Man Due to Oestrus Ovis Limacus (Sheep Bot). PMID- 29014507 TI - Medical News. PMID- 29014509 TI - Chlorophyll. PMID- 29014508 TI - Isoniazid in the Treatment of a Case of Tuberculous Meningitis in an Adult. PMID- 29014510 TI - A Case of Hydatid Cyst of the Broad Ligament. PMID- 29014511 TI - A Case of Lipo-Sarcoma. PMID- 29014513 TI - Fifty Years Ago. PMID- 29014512 TI - Notes on Sand-Flies, Part III. PMID- 29014514 TI - Current Topics, Etc. PMID- 29014515 TI - Resochin in Malaria. PMID- 29014516 TI - Fasciolopsis Buski in Saharsa District (North Bihar). PMID- 29014518 TI - Fifty Years Ago. PMID- 29014517 TI - Poliomyelitis in Amritsar. PMID- 29014519 TI - Annual Science Conference. PMID- 29014520 TI - Isonicotonic Acid Hydrazide in the Treatment of Endometrial Tuberculosis. PMID- 29014521 TI - Variations of the Basal Body Temperature and Its Clinical Significance. PMID- 29014522 TI - A Case of Devic's Disease. PMID- 29014523 TI - Synthomycetine (Lepetit) in Typhoid Fever. PMID- 29014524 TI - Medical News. PMID- 29014526 TI - Correspondence. PMID- 29014525 TI - Lactation Following Thoracoplasty Operations. PMID- 29014528 TI - Any Questions. PMID- 29014527 TI - Vitamin B12 in Macrocytic Anaemia in Pregnancy. PMID- 29014529 TI - Current Topics, Etc. PMID- 29014530 TI - Allergy and/or Addiction? PMID- 29014531 TI - Erratum: Studies on the Hypoglycaemic Effect of Tephrosia Purpurea Var. Pumila. AB - [This corrects the article on p. 43 in vol. 86.]. PMID- 29014532 TI - Medical News. PMID- 29014533 TI - Fifty Years Ago. PMID- 29014534 TI - Erratum. AB - [This corrects the article on p. 78 in vol. 86.]. PMID- 29014535 TI - Erratum: Evaluation of Blood-Stained C.S.F. as to Its Chemical and Cytological Contents. AB - [This corrects the article on p. 243 in vol. 86.]. PMID- 29014536 TI - Transmission of Kala-Azar by Phlebotomus Argentipes. PMID- 29014537 TI - Medical News. PMID- 29014539 TI - Fifty Years Ago. PMID- 29014538 TI - Current Topics, Etc. PMID- 29014540 TI - Any Questions. PMID- 29014541 TI - Correspondence. PMID- 29014542 TI - Fifty Years Ago. PMID- 29014543 TI - Correspondence. PMID- 29014544 TI - Diet in Ancient Tamil Medical Texts. PMID- 29014545 TI - Any Questions. PMID- 29014546 TI - Erratum: Newer Antigens, Controls and Types in Complement, in the Serology of Syphilis, and Associated Considerations. AB - [This corrects the article on p. 359 in vol. 86.]. PMID- 29014547 TI - Medical News. PMID- 29014548 TI - Current Topics, Etc. PMID- 29014549 TI - Kala-Azar and the Sandfly. PMID- 29014550 TI - Correspondence. PMID- 29014551 TI - Correspondence. PMID- 29014552 TI - Transmission of Kala-Azar. PMID- 29014554 TI - The Anatomical Society of India. PMID- 29014553 TI - Correspondence. PMID- 29014555 TI - Current Topics, Etc. PMID- 29014556 TI - Fifty Years Ago. PMID- 29014557 TI - Any Questions. PMID- 29014559 TI - Current Topics, Etc. PMID- 29014558 TI - Medical News. PMID- 29014560 TI - Fifty Years Ago. PMID- 29014561 TI - The Recent Calcutta Ghi-Adulteration Case. PMID- 29014562 TI - Abstracts from Reports. PMID- 29014563 TI - Current Topics, Etc. PMID- 29014564 TI - Health of Calcutta. PMID- 29014565 TI - Medical News. PMID- 29014566 TI - Fifty Years Ago. PMID- 29014567 TI - Scorpion Bite. PMID- 29014568 TI - Neuromyelitis Optica (Devic's Disease). A Case Report. PMID- 29014569 TI - Current Topics, Etc. PMID- 29014571 TI - Service Notes. PMID- 29014570 TI - The Relationship of the Body-Weight to the Weights of the Organs. The Heart. PMID- 29014572 TI - Progesterone in the Treatment of Malaria. PMID- 29014573 TI - Any Questions. PMID- 29014574 TI - Aeroplane Accident in Calcutta. PMID- 29014575 TI - A Case of Tetanus Treated with Penicillin. PMID- 29014576 TI - The Precursor of Ascorbic Acid in Vitro. PMID- 29014578 TI - Fifty Years Ago. PMID- 29014577 TI - Clinical Hydrophobia without Contact with Rabies-Transmitting Animal. PMID- 29014580 TI - Polio-Consciousness. PMID- 29014579 TI - The Treatment of Female Genital Disorders with Steroid Hormones. PMID- 29014581 TI - Snake Bite in India. PMID- 29014582 TI - Aureomycin in the Treatment of Typhoid Fever. PMID- 29014583 TI - Penicillin in Guinea-Worm Infection. PMID- 29014585 TI - Medical News. PMID- 29014584 TI - Penicillin Treatment of Vaccine Lymph. PMID- 29014586 TI - 'Caduceus'-Or the Significance of Serpents as Emblem of Art of Healing and the Snake Worship. PMID- 29014588 TI - Plague Complicating Enteric Fever. PMID- 29014587 TI - Effect of Sulphadimethylpyrimidine on the Microbial Synthesis of Thiamine and Nicotinic Acid in Human Intestine. PMID- 29014589 TI - Any Questions. PMID- 29014590 TI - Service Notes. PMID- 29014591 TI - Acute Anterior Poliomyelitis. PMID- 29014593 TI - Abstracts from Reports. PMID- 29014592 TI - Teaching of Surgery through Television. PMID- 29014594 TI - Fifty Years Ago. PMID- 29014595 TI - Streptomycin in Tuberculosis. PMID- 29014596 TI - Current Topics, Etc. PMID- 29014597 TI - Purification of Vaccine Lymph by Penicillin. PMID- 29014598 TI - Medical News. PMID- 29014600 TI - Abstracts from Reports. PMID- 29014599 TI - Iodine. PMID- 29014601 TI - Endothelioma of the Pleura. (With a Case Report). PMID- 29014602 TI - Current Topics, Etc. PMID- 29014603 TI - Fowler's Position. PMID- 29014604 TI - Medical Education in India. PMID- 29014605 TI - Some Observations on Accidental Poisoning with Special Reference to Its Incidence in Calcutta. PMID- 29014606 TI - Allergy-Like Toxic Effect of Sulphathiazole. PMID- 29014607 TI - Sodium Sulphacetamide. PMID- 29014608 TI - Progressive Muscular Atrophy. PMID- 29014609 TI - Service Notes. PMID- 29014610 TI - Medical News. PMID- 29014611 TI - Bacterium Faecalis Alkaligenes in Calcutta. PMID- 29014612 TI - Hyperglycaemia Caused by Prolonged Administration of Insulin. PMID- 29014613 TI - Toxic Manifestations of Malaria. PMID- 29014614 TI - A Case of Bilateral Abductor Paralysis of the Vocal Cords with Irritation of the Right Phrenic Nerve. PMID- 29014615 TI - Fifty Years Ago. PMID- 29014616 TI - Guinea-Worm Town of Gingee. PMID- 29014617 TI - Aureomycin. PMID- 29014618 TI - Food and Population. PMID- 29014619 TI - Diagnosis of Human Bubonic Plague by Agglutination Test. PMID- 29014621 TI - Subsidiary Food Recipes Involving Sweet Potato and Groundnut Cake Flour. PMID- 29014620 TI - Notes on Some Remedies. XXXI. Dehydration and Its Treatment. Part III. PMID- 29014622 TI - Hyperglycaemia Caused by Prolonged Administration of Insulin. PMID- 29014623 TI - Penicillin Sodium in the Treatment of Herpes Ophthalmicus. PMID- 29014624 TI - Typhus in the Northern Circars. PMID- 29014625 TI - Further Notes on the Incidence of Pneumonic Plague Cases in Gaya (Bihar). PMID- 29014626 TI - A Case of Pompholyx. PMID- 29014627 TI - Diagnostic Methods in Diseases of the Liver. PMID- 29014628 TI - Chloromycetin. PMID- 29014629 TI - Medical News. PMID- 29014630 TI - Biosynthesis of Ascorbic Acid in Human Beings. PMID- 29014632 TI - Fifty Years Ago. PMID- 29014631 TI - A Case of Rheumatic Chorea. PMID- 29014633 TI - Abstracts from Reports. PMID- 29014634 TI - Filarial Eosinophiliosis. PMID- 29014635 TI - The Pen. PMID- 29014636 TI - A Case of Polymastia. PMID- 29014638 TI - Any Questions. PMID- 29014637 TI - Current Topics, Etc. PMID- 29014639 TI - Road Sickness. PMID- 29014640 TI - Service Notes. PMID- 29014641 TI - Sporadic Cases of Encephalitis in Rural Bengal. PMID- 29014642 TI - Three Unusual Cases of Roundworm Infection. PMID- 29014643 TI - Granulosa-Cell Tumour of the Ovary. A Brief Review of Its Important Characteristics and a Report of 12 Cases. PMID- 29014644 TI - A Case of Meningitis Due to Haemophilus Influenzae. PMID- 29014645 TI - Notes on Some Remedies. XXIX. Dehydration and Its Treatment. Part I. PMID- 29014646 TI - Commercial and Therapeutic Value of By-Products of Bee Farming Industry in India. PMID- 29014648 TI - Penicillin as an Agent for Purifying Smallpox Vaccine (Calf-Propagated Vaccinia Virus). PMID- 29014647 TI - A Case of Rabies. PMID- 29014649 TI - A Monster Resembling a Mermaid (Sea-Nymph). PMID- 29014651 TI - Service Notes. PMID- 29014650 TI - Relapsing Fever-Tick-Borne. Account of an Outbreak in J.&K. Force, India. PMID- 29014652 TI - Treatment for Leucoderma. PMID- 29014653 TI - Anaphylactic Shock. PMID- 29014654 TI - Private Sanatoria in Cities. PMID- 29014655 TI - Fifty Years Ago. PMID- 29014656 TI - Any Questions. PMID- 29014657 TI - The Vitamins, and Associated Substances and Considerations. PMID- 29014658 TI - Lathyrism in Bihar. PMID- 29014659 TI - Medical News. PMID- 29014660 TI - Current Topics, Etc. PMID- 29014662 TI - Medical News. PMID- 29014661 TI - Infective Hepatitis. PMID- 29014663 TI - Three Cases of Encephalitis Lethargica. PMID- 29014664 TI - A Case of Amoebic Vaginitis. PMID- 29014665 TI - Unusual Cure of Angina Pectoris after Virus Disease. PMID- 29014666 TI - A Case of Myasthenia Gravis. PMID- 29014667 TI - A Case of Euwing's Tumour. PMID- 29014668 TI - Air-Borne Infection. PMID- 29014669 TI - Schilder's Disease. PMID- 29014670 TI - Current Topics, Etc. PMID- 29014672 TI - Fifty Years Ago. PMID- 29014671 TI - Aureomycin in Typhoid Fever. A Preliminary Report of Clinical Trial in Four Cases. PMID- 29014673 TI - Erratum: A Study in Bengalee and Beharee Female Pelvis by Roentgen-Pelvimetric Method a Preliminary Communication. AB - [This corrects the article on p. 337 in vol. 84.]. PMID- 29014675 TI - Hydrogenated Vegetable Oils: Vegetable Ghee. PMID- 29014674 TI - A Study of the Bacteriological Types of C. Diphtheriae in Bombay. PMID- 29014676 TI - Medical Post-Graduate Courses. PMID- 29014677 TI - The Indian Curds or 'Dahi' as a Source of Vitamin B Complex and Growth Factors. PMID- 29014678 TI - Amino-Acid Crystals in Urine. PMID- 29014679 TI - The King's Demise. PMID- 29014680 TI - J.S.B. Stain. PMID- 29014681 TI - Current Topics, Etc. PMID- 29014682 TI - Fifty Years Ago. PMID- 29014683 TI - Any Questions. PMID- 29014684 TI - Fifty Years Ago. PMID- 29014685 TI - Medical News. PMID- 29014686 TI - Medicolegal Number. PMID- 29014687 TI - Current Topics, Etc. PMID- 29014688 TI - Rabies as a Cause for Man-Eating Propensities of Tiger. PMID- 29014689 TI - Current Topics, Etc. PMID- 29014690 TI - Medical News. PMID- 29014692 TI - International Tuberculosis Campaign and Directorate-General of Health Services, New Delhi. PMID- 29014691 TI - Any Questions. PMID- 29014693 TI - Fifty Years Ago. PMID- 29014694 TI - Loose Leaf Binder for I.M.G. Volumes. PMID- 29014696 TI - Fifty Years Ago. PMID- 29014695 TI - Current Topics, Etc. PMID- 29014697 TI - Medical News. PMID- 29014698 TI - Fifty Years Ago. PMID- 29014699 TI - A Study of the Occupational Lead Hazard in Two Electrical Accumulator Industries. PMID- 29014700 TI - Directorate-General of Health Services, New Delhi (India). Monthly Report on Tuberculin Testings and BCG Vaccinations. PMID- 29014701 TI - Medical News. PMID- 29014702 TI - Current Topics, Etc. PMID- 29014703 TI - Methylene Blue in the Treatment of Cholera. PMID- 29014704 TI - Any Questions. PMID- 29014705 TI - Tyrannies of Nomenclature. PMID- 29014706 TI - Medicolegal Number. PMID- 29014707 TI - A Successful Operation in a Case of Constrictive Pericarditis in Calcutta. PMID- 29014710 TI - Fifty Years Ago. PMID- 29014709 TI - Weiss Knives. PMID- 29014711 TI - Current Topics, Etc. PMID- 29014713 TI - Fifty Years Ago. PMID- 29014712 TI - Sex Neuroses. PMID- 29014714 TI - Infantile Diarrhoea. PMID- 29014715 TI - Typhus in Bombay. Part III: Identification of Strains. PMID- 29014716 TI - Nutrition of T. N. Medical College Hostel Students. PMID- 29014717 TI - The Aim of Medical Inspection of Scholars. PMID- 29014718 TI - False Positive Serologic Reactions for Syphilis in Eosinophilia. PMID- 29014719 TI - Notes on Some Remedies. XVII. Drugs in Anaemias. PMID- 29014721 TI - Treatment of Scabies with D.D.T. PMID- 29014720 TI - A Case of Spreading Paralysis. PMID- 29014722 TI - International Enemy No. 1: Hurry. PMID- 29014723 TI - Medical News. PMID- 29014724 TI - Cystic Disease of Lung-A Case Report. PMID- 29014725 TI - Short Notes on the Normal Blood Pressure in Indian Females. PMID- 29014726 TI - Typhoid Fever in Children Treated with Penicillin and Sulphathiazole. PMID- 29014727 TI - Bronchial Carcinoma Simulating Pulmonary Tuberculosis. A Report of Two Cases. PMID- 29014728 TI - Current Topics, Etc. PMID- 29014729 TI - Industry and Medicine. PMID- 29014730 TI - Any Questions. PMID- 29014731 TI - A New Operation for Entropion and Trichiasis of the Upper Eyelids. PMID- 29014732 TI - Treatment of Infantile Diarrhoea with Phthalylsulphathiazole (M. & B.). PMID- 29014733 TI - Intravenous Glucose. PMID- 29014734 TI - A Case of Myelomeningocoele. PMID- 29014735 TI - Endemic Enteric Fever in a Village. PMID- 29014736 TI - A Case of Melioidosis. PMID- 29014737 TI - Current Topics, Etc. PMID- 29014738 TI - Diabetes Mellitus-Its Manifestations in the Oral Cavity. PMID- 29014740 TI - Medical News. PMID- 29014741 TI - Books in Running Brooks. PMID- 29014739 TI - A Study in Folic Acid. PMID- 29014742 TI - Riot Surgery. PMID- 29014743 TI - Abstracts from Reports. PMID- 29014744 TI - Plasma Concentration of Ascorbic Acid in Health and Pathological Conditions. PMID- 29014746 TI - Fifty Years Ago. PMID- 29014745 TI - Appendicitis Due to Entamoeba Histolytica. PMID- 29014747 TI - The Prevention of Haemolytic Disease of the Newborn by Non-Specific Immunization: Experience of a Case. PMID- 29014748 TI - A Simple Method of Cutting Serial Sections of Ticks. PMID- 29014750 TI - Penicillin Treatment of Early Syphilis. PMID- 29014749 TI - The Treatment of Polycythemia by Artificial Infection with Ancylostoma Duodenale. PMID- 29014751 TI - Recent Outbreak of Plague in Calcutta. PMID- 29014752 TI - Medical News. PMID- 29014753 TI - A Short Note on Plague Cases Treated in Campbell Hospital. PMID- 29014754 TI - Plague in Calcutta. PMID- 29014755 TI - Keratosis Blennorrhagica. A Case Report with a Review of the Literature. PMID- 29014756 TI - A Note on the Investigation of Suspected Plague Cases in the Campbell Hospital, Calcutta. PMID- 29014757 TI - An Interim Note on Certain Features of the Outbreak of Plague in Calcutta during March-May 1948. (Corrected up to 10th May.). PMID- 29014758 TI - Clinical Impressions of a Second Plague Epidemic in the Same Town. PMID- 29014759 TI - The Incidence and Causation of Glycosuria in Pregnancy. Part II. PMID- 29014760 TI - An Assessment of the Value of Plague Vaccine (Haffkine Institute) as Used in a Single Dose Mass Inoculation. (A Field Enquiry.). PMID- 29014761 TI - Service Notes. PMID- 29014762 TI - Coccidiosis in the Arakans. PMID- 29014763 TI - A Note on Fleas and Rats with Reference to Plague in Calcutta. PMID- 29014764 TI - Erratum: Serological Technique (contd.). AB - [This corrects the article on p. 31 in vol. 83.]. PMID- 29014765 TI - Presumptive Malarial Pneumonia. PMID- 29014766 TI - Forced Feeding in Acute Dysentery. PMID- 29014768 TI - Fifty Years Ago. PMID- 29014767 TI - Notes on Some Remedies. XVIII. Drugs in Anaemias. Part II. PMID- 29014769 TI - Committee on Indigenous Systems of Medicine. (Government of India, Ministry of Health). PMID- 29014771 TI - Current Topics, Etc. PMID- 29014770 TI - A Presumptive Case of Bicuspid Aortic Valve. PMID- 29014772 TI - Plague in Calcutta. Report of the First Case Diagnosed with Photographs of Three Other Cases. PMID- 29014773 TI - Treatment for Filariasis. PMID- 29014774 TI - An Unusual Complication from an Electric Shock. PMID- 29014775 TI - Sulphadiazine and Sulphaguanidine in Cholera. PMID- 29014776 TI - Granuloma Venereum. PMID- 29014777 TI - Emetine-Sulphanilamide Retention Enemas for the Treatment of Amoebic Dysentery. PMID- 29014779 TI - Current Topics, Etc. PMID- 29014778 TI - Service Notes. PMID- 29014780 TI - A Note on Some Public Health Aspects of Tuberculosis. PMID- 29014781 TI - Survival of Pneumococci and Streptococci Cultures in the Dry State. PMID- 29014782 TI - Serological Technique (Contd.): Complement-Fixation Reaction between Serum Protein and Its Antibody for Medico-Legal Purposes. PMID- 29014783 TI - Fifty Years Ago. PMID- 29014784 TI - Pelvic Floor Repair under Perineo-Pudendal Block Anaesthesia. PMID- 29014785 TI - The Relative Susceptibility to Infection and the Response to Immunization of Laboratory Animals in India and Abroad. PMID- 29014787 TI - Abstracts from Reports. PMID- 29014786 TI - Maniacal Symptoms in Ascariasis. PMID- 29014788 TI - Incidence of Primary Carcinoma of the Liver and Other Organs as Inferred from Autopsy Work, 1926 to 1946. PMID- 29014789 TI - Treatment of Balantidial Dysentery with Hydrarg Biniodide. PMID- 29014790 TI - Notes on Some Remedies. XVI. Arsenicals in Non-Syphilitic Diseases. PMID- 29014791 TI - Typhus in Bombay. Part I: Clinical Features. PMID- 29014792 TI - Recognition of M.M.F. under the Schedule to the Indian Medical Council Act. PMID- 29014794 TI - Medical News. PMID- 29014793 TI - Scrub Typhus (Mite Typhus) in Bombay with a Report on the Isolation of Causal Rickettsia. PMID- 29014795 TI - Trial of Pentamidine Isothionate in Kala-Azar Cases in the Patna Medical College Hospital (Preliminary Report). PMID- 29014797 TI - Incongruities in Tuberculosis and Associated Considerations. PMID- 29014796 TI - Observations on Pneumococcal Meningitis as a Complication of Kala-Azar. PMID- 29014798 TI - Typhus in Bombay. Part II: Epidemiology. PMID- 29014799 TI - A Case of Congenital Inguinal Hernia with Polyorchism. PMID- 29014801 TI - Giardiasis in Children. PMID- 29014800 TI - Excretion of Phosphatases. PMID- 29014802 TI - Service Notes. PMID- 29014803 TI - Fifty Years Ago. PMID- 29014804 TI - Reports and Notifications from the Medical Councils in India. PMID- 29014805 TI - The cc., c.cm., MIL., mil., and ml. PMID- 29014806 TI - Notes on Some Remedies. XXI. Drugs in Anaemias, Part V. PMID- 29014807 TI - Erratum: Presumptive Malarial Pneumonia. AB - [This corrects the article on p. 116 in vol. 83.]. PMID- 29014808 TI - Serological Technique (Contd.): A Microtechnique of Complement Fixation. PMID- 29014809 TI - Between Ourselves on Preparing a Typescript, Etc. PMID- 29014810 TI - Medical News. PMID- 29014812 TI - Current Topics, Etc. PMID- 29014811 TI - A Case of Amoebic Pericarditis. PMID- 29014813 TI - Observations on an Outbreak of Kala-Azar in Calcutta. PMID- 29014815 TI - Abstracts from Reports. PMID- 29014814 TI - Scrub Typhus (Tsutsugamushi Disease) in Bombay. PMID- 29014816 TI - Air Travel. PMID- 29014817 TI - Medical News. PMID- 29014818 TI - Choline Dihydrogen Citrate in Infantile Biliary Cirrhosis. PMID- 29014819 TI - Role of Palkies (Moving Religious Fairs) in the Epidemiology of Cholera with Special Reference to Sri Eknath Maharaj Palki. PMID- 29014820 TI - Parkinsonism in Typhoid Fever. PMID- 29014821 TI - Histopathological Changes in Liver in Congestive Heart Failure. (Study by Needle Biopsy). PMID- 29014822 TI - Intrapleural Pressures in Congestive Heart Failure. PMID- 29014823 TI - Prize for an Essay on Simple Non-Inflammatory Glaucoma. PMID- 29014824 TI - Any Questions. PMID- 29014825 TI - Oxytocic Action of Neptal. PMID- 29014826 TI - Erratum: Streptomycin. AB - [This corrects the article on p. 675 in vol. 82.]. PMID- 29014828 TI - Rupture of the Uterus. PMID- 29014827 TI - International Forms of Certificates of Vaccination against Smallpox and Inoculation against Cholera and Yellow Fever. PMID- 29014829 TI - Incidence of Coccidiosis in the Arakan. PMID- 29014830 TI - Abnormally Long Pregnancy Raises No Presumption of Infidelity. PMID- 29014831 TI - Erratum: The Passing of the I.M.S. AB - [This corrects the article on p. 411 in vol. 82.]. PMID- 29014832 TI - An Unusual Case of Suppression of Urine. PMID- 29014833 TI - Fifty Years Ago. PMID- 29014834 TI - Notes on Some Remedies. XV. Drugs in Syphilis (Contd.). PMID- 29014835 TI - Specific for Oriental Sore (Dermal Leishmaniasis). PMID- 29014836 TI - Clinical Significance of Hypoproteinaemia. PMID- 29014837 TI - Service Notes. PMID- 29014838 TI - Serological Technique (Contd.). PMID- 29014839 TI - A Plea for Water Pollution Research. PMID- 29014840 TI - Blood Grouping Tests Held Not to Be Conclusive Evidence of Paternity. PMID- 29014841 TI - AEtiology of Appendicitis. An Experimental Observation. PMID- 29014842 TI - Riot Surgery. PMID- 29014844 TI - Abstracts from Reports. PMID- 29014843 TI - Infantile Diarrhoea. PMID- 29014845 TI - Notes on Some Remedies. XIV. Drugs in Syphilis (Contd.). PMID- 29014847 TI - A Misplaced Label. Death from Barbitone Poisoning. PMID- 29014846 TI - Mepacrine Psychosis. PMID- 29014848 TI - Penicillin Administration. PMID- 29014849 TI - Serological Technique (Contd.). PMID- 29014850 TI - Service Notes. PMID- 29014852 TI - Current Topics, Etc. PMID- 29014851 TI - Some Experiences in Rural Medical Practice. PMID- 29014853 TI - Medical News. PMID- 29014854 TI - A Long Gestation Period. PMID- 29014855 TI - Streptomycin. PMID- 29014856 TI - Fifty Years Ago. PMID- 29014857 TI - Medical News. PMID- 29014858 TI - Abstracts from Reports. PMID- 29014859 TI - Medical Men at the Helm. PMID- 29014860 TI - Fifty Years Ago. PMID- 29014861 TI - Erratum: Bronchial Carcinoma Simulating Pulmonary Tuberculosis. AB - [This corrects the article on p. 83 in vol. 83.]. PMID- 29014862 TI - A Case of Congenital Absence of the Vagina: Abstract from the Medical Press, Vol 217, 2nd April, 1947, p.270. PMID- 29014864 TI - Insulin Hypoglycaemia. PMID- 29014863 TI - Paludrine: Changes in the Doses. PMID- 29014865 TI - Pellagra in Rural Bengal. PMID- 29014866 TI - Erratum: A Short Note on Plague Cases Treated in Campbell Hospital. AB - [This corrects the article on p. 150 in vol. 83.]. PMID- 29014867 TI - Erratum: Observations on an Outbreak of Kala-Azar in Calcutta. AB - [This corrects the article on p. 726 in vol. 82.]. PMID- 29014868 TI - Erratum: Plague in India. AB - [This corrects the article on p. 137 in vol. 83.]. PMID- 29014869 TI - Carrying Stethoscopes. PMID- 29014870 TI - Current Topics, Etc. PMID- 29014871 TI - I.M.S. Farewells and Retrospects. PMID- 29014872 TI - Tropical Eosinophilia with Melaena as Complication during Arsenical Therapy. A Case Report. PMID- 29014874 TI - Fifty Years Ago. PMID- 29014873 TI - Leucocytes in Normal Rhesus Monkeys. PMID- 29014875 TI - Rheumatic Diseases and Mouth Infection. PMID- 29014876 TI - Idiopathic Lung Abscess Bursting into the Chest Wall. PMID- 29014877 TI - A New Treatment of Scabies. PMID- 29014878 TI - Abstracts from Reports. PMID- 29014879 TI - Science and International Goodwill. PMID- 29014880 TI - Serological Technique (contd.). PMID- 29014881 TI - The New Indian Chief of State Medical and Health Services in India. PMID- 29014882 TI - Medical News. PMID- 29014883 TI - Current Topics, Etc. PMID- 29014884 TI - Dissolution of the I.M.S. PMID- 29014885 TI - A Case of Appendicitis and Congenital Inguinal Hernia. PMID- 29014886 TI - Treatment of Amoebic Liver Abscess with Secondary Infection. PMID- 29014887 TI - Evaluation of Prothrombin Response to Vitamin K as Liver Function Test. PMID- 29014888 TI - Prognostic Significance of Leucocytic Count in Bubonic Plague. PMID- 29014889 TI - Notes on Some Remedies. X. Antimony and Its Derivatives (Part I). PMID- 29014890 TI - Strange Thoughts. PMID- 29014891 TI - Any Questions. PMID- 29014893 TI - The Passing of the I.M.S. PMID- 29014892 TI - An Unusual Phenomenon in Strychnine Convulsions. PMID- 29014894 TI - Heterozygous Rh Transmission in a Large Family with a Case of Erythroblastosis Foetalis. PMID- 29014895 TI - Gas Gangrene. PMID- 29014896 TI - Service Notes. PMID- 29014897 TI - Ultra-Short-Wave Therapy in Medical Practice. PMID- 29014898 TI - Lobectomy for Giant Cyst of the Lung. PMID- 29014899 TI - Early Diagnosis of Tsutsugamushi. PMID- 29014900 TI - Tetrachlorethylene Poisoning and Treatment. PMID- 29014901 TI - A Medical Misadventure-Death from Sternal Puncture. PMID- 29014902 TI - A Case of Diabetes Insipidus Associated with Diabetes Mellitus. PMID- 29014903 TI - Plague Control. PMID- 29014904 TI - A Name Misheard. PMID- 29014906 TI - Current Topics, Etc. PMID- 29014905 TI - Erratum: The Effect of Processing and Souring Milk by the Indigenous Method. AB - [This corrects the article on p. 320 in vol. 82.]. PMID- 29014907 TI - Serological Technique (Contd.). PMID- 29014908 TI - An Unusual Case of Suppression of Urine. PMID- 29014909 TI - A Case of Hypertensive Encephalopathy with Subarachnoid Haemorrhage in Acute Diffuse Glomerulo-Nephritis. PMID- 29014910 TI - Suprapubic Prostatectomy with Special Reference to Penicillin Treatment. PMID- 29014912 TI - Fifty Years Ago. PMID- 29014911 TI - Treatment of Major Burns in 1940 and 1946. Comparison of Tannic Acid Treatment with Compression Bandage Method. PMID- 29014914 TI - Service Notes. PMID- 29014913 TI - Notes on Some Remedies. XI. Antimony and Its Derivatives (Part II). PMID- 29014915 TI - Antibiotics. PMID- 29014917 TI - Any Questions. PMID- 29014916 TI - Delivery of a Dead Foetus per Rectum. PMID- 29014918 TI - Abstracts from Reports. PMID- 29014919 TI - Blackwater Fever. PMID- 29014920 TI - Treatment of Amoebic Dysentery with E.B.I. Retention Enemas. PMID- 29014922 TI - The Blood Transfusion Service and Blood Banks in India. PMID- 29014921 TI - An Unusual Case of Ileo-Caecal Tuberculosis. PMID- 29014923 TI - Experiences of Riot Surgery. A Review of 50 Cases. PMID- 29014924 TI - Traumatic Arterial Spasm. PMID- 29014925 TI - A Case of Maniacal Excitement Following Large Doses of Atebrin. PMID- 29014926 TI - Covenants in Restraint of Competitive Practice. PMID- 29014927 TI - Penicillin in Subacute Nephritis. PMID- 29014928 TI - Hypoproteinaemia Due to Utilization of Plasma Protein for Erythropoiesis. PMID- 29014929 TI - Observations on Anaemia in the Malnad Parts of the Mysore State. PMID- 29014931 TI - Medical News. PMID- 29014930 TI - Analysis of Surma. PMID- 29014932 TI - Further Observations on Plague. PMID- 29014933 TI - Arthrodesis of Shoulder : A Case Report. PMID- 29014934 TI - Groundnut Cake for Human Consumption. PMID- 29014935 TI - A Case of Blackwater Fever. PMID- 29014936 TI - Progressive Muscular Atrophy. PMID- 29014937 TI - Back Numbers of the I.M.G. PMID- 29014938 TI - Oldest Medical Monthly of the Eastern Hemisphere. PMID- 29014940 TI - Current Topics, Etc. PMID- 29014939 TI - Erratum: Practice of Medicine (Written in Bengali). AB - [This corrects the article on p. 500b in vol. 82.]. PMID- 29014941 TI - Any Questions. PMID- 29014942 TI - Planned Parenthood. PMID- 29014943 TI - A Case of Diphtheritic Encephalitis. PMID- 29014944 TI - Old Calcutta (1759-1763). PMID- 29014946 TI - Fifty Years Ago. PMID- 29014945 TI - Storage of Penicillin. PMID- 29014947 TI - Medical News. PMID- 29014948 TI - Service Notes. PMID- 29014949 TI - Abstracts from Reports. PMID- 29014951 TI - Abortion by Medical Profession. PMID- 29014950 TI - Use of Anticoagulants in the Treatment of Experimental Yellow Fever. PMID- 29014952 TI - Erratum: Observations on Anaemia in the Malnad Parts of the Mysore State. AB - [This corrects the article on p. 488 in vol. 82.]. PMID- 29014953 TI - Current Topics, Etc. PMID- 29014954 TI - V.D. Campaign in Calcutta. PMID- 29014956 TI - Medical News. PMID- 29014955 TI - Penicillin Therapy in Chancroidal Bubo. PMID- 29014959 TI - A Study in the Prevalence of Venereal Disease in India Judged from a Series of Routine Kahn Tests and from Histories in Sanatorium Patients. PMID- 29014957 TI - Capillarity Phenomena in Gonococcal Infection in the Male Urethra. PMID- 29014958 TI - A Case of Syphilis of the Lungs. PMID- 29014960 TI - Service Notes. PMID- 29014962 TI - Cutaneous Gummata of Face. PMID- 29014961 TI - Gonorrhoeal Stricture of the Male Urethra. PMID- 29014964 TI - Points from Letters. PMID- 29014963 TI - Chief Legal Aspects of the Venereal Diseases. PMID- 29014965 TI - Notes on Some Remedies. XIII. Drugs in Syphilis. PMID- 29014966 TI - Tropical Eosinophilia and Syphilis. (A Case Report and Commentary.). PMID- 29014967 TI - Penicillin Treatment of Early Syphilis. PMID- 29014969 TI - Concerning Venereal Diseases. PMID- 29014968 TI - Reiter's Disease. PMID- 29014970 TI - The Wassermann Positive Rate of Cases from Hospitals and Venereal Clinics of Calcutta in 1939, 1943, 1944, 1945 and 1947. PMID- 29014971 TI - False Positive Serological Reactions for Syphilis in Smallpox Vaccinations. PMID- 29014973 TI - The Rationale of Malaria Therapy in Late Localized Syphilis with Particular Reference to General Paralysis of the Insane. PMID- 29014972 TI - Serological Technique (Contd.). PMID- 29014975 TI - Fifty Years Ago. PMID- 29014974 TI - Any Questions. PMID- 29014976 TI - Any Questions. PMID- 29014977 TI - Abstracts from Reports. PMID- 29014978 TI - The Hormones. PMID- 29014979 TI - Current Topics, Etc. PMID- 29014980 TI - Medical News. PMID- 29014981 TI - Medical News. PMID- 29014982 TI - Current Topics, Etc. PMID- 29014983 TI - Service Notes. PMID- 29014985 TI - Polio Yet Again. PMID- 29014984 TI - M.D. and M.S., Bombay. PMID- 29014986 TI - Fifty Years Ago. PMID- 29014987 TI - Clinical Hydrophobia without Contact with Rabies Transmitting Animal. PMID- 29014988 TI - Sudden Death of Babies. PMID- 29014989 TI - Medical Correspondence College. PMID- 29014990 TI - Typhus in the Northern Circars. PMID- 29014991 TI - Medical News. PMID- 29014992 TI - Abstracts from Reports. PMID- 29014993 TI - Combination of Liver Extract and Folic Acid. PMID- 29014994 TI - Current Topics, Etc. PMID- 29014995 TI - Treatment of Malaria. PMID- 29014996 TI - The Birth of the Indian Republic. PMID- 29014997 TI - Fifty Years Ago. PMID- 29014998 TI - Abstracts from Reports. PMID- 29014999 TI - An Appeal. PMID- 29015001 TI - Service Notes. PMID- 29015000 TI - Geriatric Medicine. PMID- 29015002 TI - Heparin in Yellow Fever. PMID- 29015003 TI - Penicillin and Sulphadiazine in Lobar Pneumonia. PMID- 29015004 TI - I.M.G. Previous Issues. PMID- 29015005 TI - Medical News. PMID- 29015006 TI - Current Topics, Etc. PMID- 29015007 TI - Fifty Years Ago. PMID- 29015008 TI - Erratum: The Vitamins, and Associated Substances and Considerations. AB - [This corrects the article on p. 453 in vol. 84.]. PMID- 29015009 TI - Unusual Cure of Angina Pectoris after Virus Disease. PMID- 29015010 TI - Pleasant 1949-50 Winter in Calcutta and Associated Considerations. PMID- 29015011 TI - Service Notes. PMID- 29015012 TI - Abstracts from Reports. PMID- 29015013 TI - Fifty Years Ago. PMID- 29015015 TI - Medical News. PMID- 29015014 TI - Wassermann Reaction. PMID- 29015016 TI - Current Topics, Etc. PMID- 29015017 TI - Precautionary Measures in the Management of Pneumonic Plague. PMID- 29015019 TI - Against Pessimism in Tuberculosis. PMID- 29015018 TI - A Note on Filing Medical Journals. PMID- 29015020 TI - Fifty Years Ago. PMID- 29015021 TI - Current Topics, Etc. PMID- 29015022 TI - Penicillin Treatment of Glycerine Vaccine Lymph. PMID- 29015023 TI - Medical News. PMID- 29015024 TI - Fifty Years Ago. PMID- 29015026 TI - Any Questions. PMID- 29015025 TI - Erratum: Use of D.D.T. as a Plague Control Measure in the Bombay State. AB - [This corrects the article on p. 217 in vol. 87.]. PMID- 29015028 TI - Current Topics, Etc. PMID- 29015027 TI - Inoculation against Preventable Diseases. PMID- 29015029 TI - Erratum: Pyogenic Arthritis and Osteom Yelitis Following Smallpox (A Report of 21 Cases). AB - [This corrects the article on p. 244 in vol. 87.]. PMID- 29015031 TI - Fire Side Fantasies. PMID- 29015030 TI - Carcinoid of the Appendix. PMID- 29015032 TI - Branchial Fistula: Report of a Case. PMID- 29015033 TI - Vomiting, a Sign of Angina Pectoris. PMID- 29015034 TI - A Case of Strangulated Inguinal Hernia in a Patient Aged 107 Years Treated Successfully by Operations. PMID- 29015035 TI - Medical News. PMID- 29015037 TI - Fifty Years Ago. PMID- 29015036 TI - The Effect of Digitalis on the Coagulation Time of Blood. PMID- 29015038 TI - Cashew-Nut (Anacardium Accidentale Linn) Shell Oil as an Anthelmintic in Human Helminthiasis-A Preliminary. PMID- 29015040 TI - Misuse of Wonder Drugs. PMID- 29015039 TI - Clinical Assesment of Nutritional Status of School Boys in Uttar Pradesh. PMID- 29015041 TI - Current Topics, Etc. PMID- 29015042 TI - Osteitis Pubis. PMID- 29015043 TI - An Observation in Photography with X-Ray Films. PMID- 29015044 TI - Multiocular Dentigerous Cyst. PMID- 29015045 TI - Serological Technique: Immunotherapy. PMID- 29015046 TI - Directorate-General of Health Services, New Delhi. PMID- 29015048 TI - Current Topics, Etc. PMID- 29015047 TI - A Rare Variety of Surgical Emphysema. PMID- 29015049 TI - Medical News. PMID- 29015050 TI - Controversy over BCG Vaccination. PMID- 29015051 TI - Fifty Years Ago. PMID- 29015052 TI - Current Topics, Etc. PMID- 29015053 TI - Any Questions. PMID- 29015054 TI - Fifty Years Ago. PMID- 29015055 TI - Erratum: A Case of Strangulated Inguinal Hernia, Right Side, with a Peculiar Complication. AB - [This corrects the article on p. 203 in vol. 87.]. PMID- 29015056 TI - Erratum: Studies in the Histology of Early Lesions in Leprosy. AB - [This corrects the article on p. 225 in vol. 87.]. PMID- 29015057 TI - Criteria for Discharge of a Patient from a Leprosy Home: (With Special Reference for Re-Appointment by Employer). PMID- 29015059 TI - Fifty Years Ago. PMID- 29015058 TI - Diamino-Diphenyl-Sulphone (DDS) in the Treatment of Filariasis. PMID- 29015060 TI - Pneumococeal Meningitis with Multiple Cranial Nerve Lesions. PMID- 29015062 TI - Any Questions. PMID- 29015061 TI - Phenyl Pyruvic Oligophrenia: Short Review with the Report of an Affected Family. PMID- 29015063 TI - Intramuscular Paraldehyde. PMID- 29015064 TI - An Atypical Case of Pneumococcal Meningitis. PMID- 29015065 TI - Guinea-Worm Disease: Case Notes. PMID- 29015066 TI - A Case of Amoebic Perforation of the Colon. PMID- 29015067 TI - Too Much Latin and Greek (From Edinburg Review, Oct., 1809, as Reproduced in Master Piece of the World's Best Literature). PMID- 29015068 TI - From a Distinguished Contributor. PMID- 29015069 TI - Thymol Turbidity as a Liver Function Test. PMID- 29015071 TI - Current Topics, Etc. PMID- 29015070 TI - A Case of Reticulum-Cell Sarcoma. PMID- 29015072 TI - The Ratio of the Body Weight to the Weights of the Organs Part IV. The Kidneys' the Spleen, the Liver, the Lungs, the Pancreas, the Pituitary, the Suprarenals, the Thyriod and the Testes. PMID- 29015073 TI - Ourselves. PMID- 29015074 TI - Study of a New Modified Insulin (Type N.P.H.). PMID- 29015075 TI - Medical News. PMID- 29015076 TI - Correspondence. PMID- 29015077 TI - Perforation of the Aorta by Swallowed Fish Bone. PMID- 29015078 TI - Tendoachillis as a Measure of Somatie and Psychosomatie Wellbeing. PMID- 29015079 TI - The Reduction of Leprosy Incidence by Insolation of Infective Cases, Combined with Six-Monthly Surveys of All Contacts to Detect New Cases in an Easily Curable Stage. PMID- 29015080 TI - A Noteworthy Case for Diagnosis. PMID- 29015081 TI - 59th Annual Meeting of the Association of Military Surgeons of the United States. PMID- 29015082 TI - Polyarteritis Nodosa: Report of a Case. PMID- 29015083 TI - Isonicotinic Acid Hydrazide. PMID- 29015084 TI - Any Questions. PMID- 29015085 TI - A Case Report on Haemangioendothelioma Sarcoma of Liver. PMID- 29015088 TI - Treatment of Cholera with Oral and Intravenous Chloromycetin. PMID- 29015087 TI - Naturally Developed Diphtheria Antitoxin Titre of a Random Indian Population. PMID- 29015086 TI - Notes on the Haematological Studies in Children in Poona. PMID- 29015089 TI - Fifty Years Ago. PMID- 29015090 TI - Current Topics, Etc. PMID- 29015091 TI - Studies in Yaws (Koya Rogam): A Review of 1,000 Cases of Yaws from Warangal District, Hyderabad State (Deccan). PMID- 29015093 TI - Erratum: Controversy over BCG Vaccination. AB - [This corrects the article on p. 410 in vol. 87.]. PMID- 29015092 TI - A Preliminary Note on the Prophylactic Value of Fortnightly Doses of Camoquin in Malaria. PMID- 29015094 TI - Scabies in Goats and Rabbits Communicable to Man: With Case Reports. PMID- 29015095 TI - Avitaminosis in Kala-Azar: Preliminary Observations. PMID- 29015096 TI - Medical News. PMID- 29015097 TI - Treatment of Indian Kala-Azar with a New Antimony Compound: Nu-1160. PMID- 29015098 TI - Current Topics, Etc. PMID- 29015099 TI - Medical News. PMID- 29015100 TI - The Radioactive Isotopes. PMID- 29015101 TI - Care and Management of Laboratory Animals. PMID- 29015102 TI - Fifty Years Ago. PMID- 29015103 TI - Spontaneous Lactation. PMID- 29015104 TI - Choline Content of Milk. PMID- 29015105 TI - Tuberculosis in Indian Prisons Fifty Years Ago. PMID- 29015106 TI - Fifty Years Ago. PMID- 29015107 TI - Tuberculosis in Europe To-Day. PMID- 29015108 TI - Transmission of Kala-Azar by Phlebotomus Argentipes. PMID- 29015109 TI - Research on Bhagavad Gita. PMID- 29015110 TI - Abstracts from Reports. PMID- 29015111 TI - Current Topics, Etc. PMID- 29015112 TI - Medical News. PMID- 29015113 TI - Any Questions. PMID- 29015114 TI - Fifty Years Ago. PMID- 29015115 TI - Current Topics, Etc. PMID- 29015116 TI - Preliminary Note on a New Method of Treating Malarial Fevers. PMID- 29015117 TI - Apropos of the Problem Families in Europe and Asia. PMID- 29015118 TI - Choline Content of Milk. PMID- 29015120 TI - Current Topics, Etc. PMID- 29015119 TI - Fifty Years Ago. PMID- 29015121 TI - Abstracts from Reports. PMID- 29015122 TI - A Substitute for Morphine. A Preliminary Communication. PMID- 29015124 TI - Medical News. PMID- 29015123 TI - Any Questions. PMID- 29015125 TI - Blood Types M and N. PMID- 29015126 TI - Current Topics, Etc. PMID- 29015127 TI - Fifty Years Ago. PMID- 29015128 TI - Medical News. PMID- 29015129 TI - Vitamin M, Wills' Factor and Folic Acid. PMID- 29015130 TI - Behind Time Again. PMID- 29015131 TI - Sanitation and Other Allied Matters at Big Indian Railway Stations. PMID- 29015132 TI - Any Questions. PMID- 29015133 TI - Fifty Years Ago. PMID- 29015135 TI - Current Topics, Etc. PMID- 29015134 TI - Erratum: Serological Technique: Immunotherapy (Contd.). AB - [This corrects the article on p. 47 in vol. 86.]. PMID- 29015136 TI - Transmission of Kala-Azar by Phlebotomus Argentipes. PMID- 29015137 TI - Death after Anti-Rabies Treatment. PMID- 29015139 TI - Glucose Injection. PMID- 29015138 TI - Service Notes. PMID- 29015140 TI - Current Topics, Etc. PMID- 29015141 TI - Medical Councils. PMID- 29015142 TI - A Marvel of Human Brain Power: Helen Keller, LL.D., L.H.D., Blind-Deaf Author Educator. PMID- 29015143 TI - Morphologic Changes in Coronary Heart Disease. PMID- 29015144 TI - Notes on Some Remedies. XXV. Blood Transfusion, Part IV. PMID- 29015146 TI - Medical News. PMID- 29015145 TI - Erratum: Allergy: Newer Knowledge. AB - [This corrects the article on p. 565 in vol. 83.]. PMID- 29015147 TI - Fifty Years Ago. PMID- 29015148 TI - Congenital Absence of the Uterus. PMID- 29015149 TI - Any Questions. PMID- 29015150 TI - Hydroxy Stilbamidine in the Treatment of Kala-Azar. PMID- 29015151 TI - A Neurological Case for Diagnosis. PMID- 29015153 TI - Current Topics, Etc. PMID- 29015152 TI - Erratum: Serological Technique (Contd.). AB - [This corrects the article on p. 549 in vol. 83.]. PMID- 29015155 TI - Service Notes. PMID- 29015154 TI - Medical News. PMID- 29015157 TI - Typhus Fevers. PMID- 29015156 TI - Serological Technique (Contd.). PMID- 29015158 TI - Fifty Years Ago. PMID- 29015159 TI - Skin-Grafting. PMID- 29015160 TI - Notes on Some Remedies XXVIII. Drugs in Helminthic Diseases, Part III. PMID- 29015161 TI - Any Questions. PMID- 29015162 TI - Serological Technique (Contd.). PMID- 29015163 TI - Changes in the Dosage of Paludrine. PMID- 29015165 TI - Service Notes. PMID- 29015164 TI - The King's Health. PMID- 29015166 TI - Pneumonic Plague in Eastern India. PMID- 29015167 TI - Current Topics, Etc. PMID- 29015168 TI - Medical News. PMID- 29015169 TI - Fifty Years Ago. PMID- 29015170 TI - Microfilm Service Units. PMID- 29015171 TI - Tuberculosis. PMID- 29015172 TI - Abstracts from Reports. PMID- 29015173 TI - Notes on Some Remedies. XXVII. Drugs in Helminthic Diseases, Part II. PMID- 29015174 TI - Serological Technique (Contd.). PMID- 29015175 TI - Erratum: Serological Technique (Contd.). AB - [This corrects the article on p. 51 in vol. 84.]. PMID- 29015176 TI - Medical News. PMID- 29015177 TI - Fifty Years Ago. PMID- 29015178 TI - Service Notes. PMID- 29015179 TI - Erratum: A Report of 46 Cases of Anaemia in the Punjab with Special Reference to Nutritional Macrocytic and Addisonian Anaemia. AB - [This corrects the article on p. 508 in vol. 83.]. PMID- 29015180 TI - Corneal Grafting in India. PMID- 29015181 TI - Antrycide. PMID- 29015182 TI - Current Topics, Etc. PMID- 29015183 TI - B.C.G. Vaccine. PMID- 29015184 TI - Fifty Years Ago. PMID- 29015185 TI - Incidence and Control of Kala-Azar in the Eastern Districts of United Provinces. PMID- 29015187 TI - Pleasant Hot Weather in Calcutta in 1949. PMID- 29015186 TI - Chemotherapy in Human Anthrax. PMID- 29015188 TI - Pulmonary Amoebiasis. PMID- 29015189 TI - Erratum: Pneumonic Plague in Eastern India. AB - [This corrects the article on p. 157b in vol. 84.]. PMID- 29015190 TI - Enlarged Prostate, Clinical Features, Diagnosis and Management. (A Report of 12 Cases.). PMID- 29015191 TI - Studies on the Hypoglycaemic Effect of Tephrosia Purpurea Var. Pumila. PMID- 29015192 TI - Current Topics, Etc. PMID- 29015193 TI - Medical News. PMID- 29015194 TI - Service Notes. PMID- 29015195 TI - Any Questions. PMID- 29015196 TI - Serological Technique: Immunotherapy (Contd.). Immunization against Viral Infections. PMID- 29015198 TI - OEdema during Recovery from Anaemia Due to Red Cell Regeneration Hypoproteinaemia. PMID- 29015197 TI - Observations on the Use of Myanesin as an Anticonvulsant in Tetanus. PMID- 29015199 TI - Studies on Blood Pressure, Height, Weight, Chest and Abdominal Measurements of 2,500 Members of the Calcutta Police with Short Notes on Their Medical Impairments. PMID- 29015200 TI - Diagnostic Fluoroscopy and Its Position in Tuberculosis Case-Finding. (A Summary of Prevailing Views.). PMID- 29015201 TI - Serological Technique: Technique of Testing Blood with Human Testing Sera. Addendum. PMID- 29015202 TI - Erratum: Two Atypical Cases of Giardia Infection. AB - [This corrects the article on p. 103 in vol. 84.]. PMID- 29015203 TI - Centrifugal Agglutination for Diagnosis. PMID- 29015204 TI - A Case of Pyloric Obstruction. PMID- 29015205 TI - Medical Education. PMID- 29015206 TI - Medical Education. PMID- 29015207 TI - Further Education of Medical Licentiates. PMID- 29015208 TI - Fifty Years Ago. PMID- 29015209 TI - Service Notes. PMID- 29015210 TI - Points from Letters. PMID- 29015211 TI - Some Observations on Medical Education with Special Reference to Teaching of Pharmacology and Therapeutics. PMID- 29015212 TI - Studies in the Bacterial AEtiology of Dental Caries. PMID- 29015214 TI - Medical Education. PMID- 29015213 TI - Medical Education. PMID- 29015215 TI - Medical News. PMID- 29015217 TI - Education of the Medical Licentiates. PMID- 29015216 TI - Leishmaniasis and the Sandfly. PMID- 29015218 TI - Laurence-Moon-Biedl Syndrome. PMID- 29015219 TI - Higher Medical Qualifications at Home. PMID- 29015220 TI - Current Topics, Etc. PMID- 29015221 TI - Abstracts from Reports. PMID- 29015222 TI - Chorea Following Benign Tertian Malaria. PMID- 29015223 TI - Contact Lenses. PMID- 29015224 TI - Myotonia Congenita. Thomsen's Disease. PMID- 29015225 TI - Medical Qualification and Registration. PMID- 29015226 TI - Abnormal Pectoralis Minor Muscle and Evidence of Modified Axillary Arch. PMID- 29015227 TI - Medical Education and Leprosy. PMID- 29015228 TI - The Relation of Refrigeration to Body-Weight. PMID- 29015229 TI - A Case of Full-Term Abdominal Pregnancy. PMID- 29015230 TI - Fifty Years Ago. PMID- 29015231 TI - Oath of Hippocrates. PMID- 29015233 TI - Blood Donation. PMID- 29015232 TI - Serological Technique (Contd.). PMID- 29015234 TI - Current Topics. PMID- 29015235 TI - Medical News. PMID- 29015236 TI - Abstracts from Reports. PMID- 29015237 TI - Service Notes. PMID- 29015238 TI - Helminthagogues. PMID- 29015239 TI - Reunion Dinner. PMID- 29015240 TI - Note on Industrial Canteens in Central Provinces. PMID- 29015242 TI - Venereal Diseases Number. PMID- 29015241 TI - Is Second Attack of Diphtheria Possible? PMID- 29015243 TI - Any Questions. PMID- 29015244 TI - Medical Men in India: Too Few or Too Many. PMID- 29015245 TI - Service Notes. PMID- 29015247 TI - Fifty Years Ago. PMID- 29015246 TI - Progressive Muscular Atrophy. PMID- 29015248 TI - Abstracts from Reports. PMID- 29015249 TI - Asthma and Pneumonia. PMID- 29015250 TI - Medical News. PMID- 29015251 TI - Antibiotics. PMID- 29015252 TI - Venereal Diseases Number. PMID- 29015253 TI - Infamous Conduct in a Professional Respect. Epstein v. Medical Board of Victoria. PMID- 29015255 TI - Dying Declaration. Rex v. Ivan Manfred Kahu. PMID- 29015254 TI - Current Topics. PMID- 29015257 TI - Compensation Court. Rowbottom v. Shaw, Savill and Albion Company Limited. Coronary Disease and Myocardial Infarction. PMID- 29015256 TI - Erratum. AB - [This corrects the article on p. 433 in vol. 81.]. PMID- 29015258 TI - Fifty Years Ago. PMID- 29015259 TI - Service Notes. PMID- 29015260 TI - Abstracts from Reports. PMID- 29015261 TI - Medical News. PMID- 29015263 TI - Service Notes. PMID- 29015262 TI - Any Questions. PMID- 29015264 TI - Any Questions. PMID- 29015265 TI - Current Topics. PMID- 29015267 TI - Any Questions. PMID- 29015266 TI - Toxic Symptoms Associated with Quinacrine Treatment. PMID- 29015268 TI - Service Notes. PMID- 29015269 TI - A Case of Craniocleido-Dysostosis. PMID- 29015270 TI - Serological Technique (Contd.). PMID- 29015271 TI - The Use of Ground-Nut Cake Flour for Human Consumption. PMID- 29015273 TI - Treatment of Osteoarthritis with Intra-Articular Injections of Lactic Acid. PMID- 29015272 TI - Investigation on a Case of Feminism. PMID- 29015274 TI - History of Kala-Azar in India. PMID- 29015275 TI - Mepacrine Psychosis. PMID- 29015276 TI - Preliminary Report on a New Synthetic Antimalarial. PMID- 29015277 TI - Cerebral Malaria in Pregnancy Simulating Acute Yellow Atrophy of the Liver. PMID- 29015279 TI - A Typical Case of Iso-Immunization against the Rhesus Factor. PMID- 29015278 TI - Medical Treatment of Intestinal Obstruction. PMID- 29015280 TI - Medical News. PMID- 29015281 TI - Clinical Trials of Paludrine. PMID- 29015282 TI - A Clinical Study on Paludrine. PMID- 29015283 TI - Notes on Some Remedies IX. Amoebicides. PMID- 29015284 TI - Current Topics, Etc. PMID- 29015285 TI - A Case of Renal Glycosuria Associated with Hypovitaminosis C. PMID- 29015286 TI - Fifty Years Ago. PMID- 29015288 TI - Abstracts from Reports. PMID- 29015287 TI - Clinical Trial of Paludrine in Malaria. PMID- 29015289 TI - Homo Sapiens. PMID- 29015290 TI - A Case of Primary Pneumonic Plague. PMID- 29015292 TI - A Specially Esteemed Contributor. PMID- 29015291 TI - Fifty Years Ago. PMID- 29015294 TI - Cirrhosis of the Liver in the Adult. PMID- 29015293 TI - The Erythrocyte Sedimentation Rate in Rheumatic Fever and Other Conditions. PMID- 29015295 TI - Sodium Thiosulphate as an Antidote in Penicillin Exfoliative Dermatitis. PMID- 29015296 TI - A Case of Richter's Hernia Strangulated in the First Descent in a Congenital Right Inguinal Hernial Sac. PMID- 29015298 TI - Current Topics, Etc. PMID- 29015297 TI - The Present Position of Antimony Treatment of Filariasis: With a Suggestion for Its Intensive Use. PMID- 29015300 TI - Leukaemia and War Service. PMID- 29015299 TI - Small, Faint and Hidden Bloodstains. PMID- 29015301 TI - Service Notes. PMID- 29015302 TI - The Twin Dominions and the Indian Medical Gazette. PMID- 29015303 TI - The Effect of Processing and Souring Milk by the Indigenous Method. PMID- 29015305 TI - Abstracts from Reports. PMID- 29015304 TI - Inadequacy of Medical Education in India. PMID- 29015306 TI - The Value of Transfusion of Blood in the Treatment of Anaemias. PMID- 29015307 TI - Treatment of Typhoid Fever with Penicillin. PMID- 29015308 TI - Kala-Azar in Jaipur. PMID- 29015309 TI - Isolation of OEstrone from the Urine of a Case of Feminism. PMID- 29015310 TI - Brenner Tumour of the Ovary: Report of Two Cases, One in the Wall of a Serous Cystadenoma. PMID- 29015311 TI - Scrub Typhus in North Burma. PMID- 29015312 TI - Medical News. PMID- 29015313 TI - Any Questions. PMID- 29015314 TI - Inclusion Bodies in Rickettsia Orientalis Infection. PMID- 29015315 TI - Primary Atypical Pneumonia. PMID- 29015316 TI - Fifty Years Ago. PMID- 29015317 TI - Kala-Azar in India and the Sandfly. PMID- 29015318 TI - Erratum: Treatment of Epidemic Dropsy. AB - [This corrects the article on p. 165 in vol. 85.]. PMID- 29015319 TI - Leprosy Tamed. PMID- 29015321 TI - Current Topics, Etc. PMID- 29015320 TI - Aureomycin in Kala-Azar. PMID- 29015322 TI - Medical News. PMID- 29015323 TI - Errata. AB - [This corrects the article on p. 373g in vol. 84.][This corrects the article on p. 373h in vol. 84.]. PMID- 29015324 TI - Service Notes. PMID- 29015325 TI - Clinical Hydrophobia without Contact with Rabies Transmitting Animal. PMID- 29015327 TI - Medical News. PMID- 29015326 TI - Erratum: The Present Status of Sulphones in the Treatment of Leprosy. AB - [This corrects the article on p. 348 in vol. 85.]. PMID- 29015328 TI - Fifty Years Ago. PMID- 29015329 TI - Parenteral Use of Vitamins. PMID- 29015330 TI - Current Topics, Etc. PMID- 29015331 TI - Any Questions. PMID- 29015332 TI - Current Topics, Etc. PMID- 29015333 TI - Fifty Years Ago. PMID- 29015334 TI - Service Notes. PMID- 29015335 TI - Medical News. PMID- 29015336 TI - Abstracts from Reports. PMID- 29015337 TI - Abreast with the Times. PMID- 29015338 TI - Correspondence. PMID- 29015339 TI - Correspondence. PMID- 29015340 TI - Mahatma Gandhi. PMID- 29015341 TI - The Irresistible Impulse. PMID- 29015342 TI - Deeds of Violence in India in 1935-36 and 1945-46, and Other Crimes in Which Serology Plays a Part. PMID- 29015343 TI - Prevention of Cruelty to Animals. PMID- 29015345 TI - Fifty Years Ago. PMID- 29015344 TI - Correspondence. PMID- 29015346 TI - The Supermen. PMID- 29015348 TI - The Death Penalty. PMID- 29015347 TI - Correspondence. PMID- 29015349 TI - Sacral Anaesthesia for Lower Abdominal and Perineal Surgery. PMID- 29015350 TI - Humane Slaughter of Animal. PMID- 29015351 TI - The Calcutta Deaf and Dumb School. PMID- 29015352 TI - Current Topics, Etc. PMID- 29015353 TI - Social Reform Section. PMID- 29015354 TI - Unwanted Medical Relief. PMID- 29015355 TI - Advantages of Regional Anaesthesia in Poor Surgical Risk Cases with Special Reference to Refrigeration Method. (A Report of 16 Poor Risk Cases.). PMID- 29015356 TI - Power Unlimited. PMID- 29015357 TI - Medical Education. PMID- 29015358 TI - Medical News. PMID- 29015359 TI - Erratum: The cc., c.cm., MIL., mil., and ml. AB - [This corrects the article on p. 281 in vol. 83.]. PMID- 29015361 TI - What Should the General Practitioner Know about Filariasis. PMID- 29015360 TI - Euthanasia, Capital Punishment, Murder. PMID- 29015362 TI - Any Questions. PMID- 29015363 TI - A Large Pheochromocytoma of the Adrenal Gland. PMID- 29015364 TI - A Case of H. Influenzae Meningitis Treated with Penicillin and Sulphadiazine. PMID- 29015365 TI - Medical News. PMID- 29015366 TI - Observations of Ascorbic Acid. Part XI. Therapeutic Effect of Ascorbic Acid in Tuberculosis. PMID- 29015367 TI - Erratum: The Tragedy of Tragedies. AB - [This corrects the article on p. 331 in vol. 83.]. PMID- 29015368 TI - Plasma Proteins in Peptic Ulcer. PMID- 29015370 TI - Erratum: Unwanted Medical Relief. AB - [This corrects the article on p. 320 in vol. 83.]. PMID- 29015369 TI - An Unusual Case of Actinomycosis of Cheek. PMID- 29015371 TI - Current Topics, Etc. PMID- 29015372 TI - Service Notes. PMID- 29015374 TI - Abstracts from Reports. PMID- 29015375 TI - A Double-Headed Monster. PMID- 29015373 TI - Vitamin-'A' Deficiency among a Group of South Indian College Students. PMID- 29015376 TI - A Case of Complete Detachment of the Heart. PMID- 29015377 TI - Serological Technique (Contd.). PMID- 29015378 TI - Occupational Diseases in Relation to the Manufacture of Dichromates: Their Prevention and Treatment. PMID- 29015380 TI - Comatose Condition Due to B.T. Infection. PMID- 29015379 TI - Cerebral Symptoms in Benign Tertian Infection. PMID- 29015381 TI - Geneculate Herpes or 'Ramsay Hunt Syndrome'. PMID- 29015384 TI - Notes on Some Remedies. XXIII. Blood Transfusion, Part II. PMID- 29015382 TI - The Action of Shiga Toxins on Laboratory Animals in General and on Monkeys in Particular. PMID- 29015383 TI - Pneumonic Plague and Its Treatment. PMID- 29015386 TI - Fifty Years Ago. PMID- 29015385 TI - Two Cases of Tropical Eosinophilia in Tea Estate Practice. PMID- 29015387 TI - Observations on Pneumococcal Meningitis as a Complication of Kala-Azar. PMID- 29015389 TI - Service Notes. PMID- 29015388 TI - The Shortage of Food and Cloth. PMID- 29015390 TI - A Report of 46 Cases of Anaemia in the Punjab with Special Reference to Nutritional Macrocytic and Addisonian Anaemia. PMID- 29015391 TI - The Incidence and Causation of Glycosuria in Pregnancy. Part III. PMID- 29015392 TI - An Analysis of 50,000 Skin Cases as Seen in the Out-Patient Department of the School of Tropical Medicine, Calcutta, during the Five Years from 1942 to 1946. PMID- 29015394 TI - Any Questions. PMID- 29015393 TI - Incidence of Frontal or Metopic Suture Amongst Punjabee Adults. PMID- 29015395 TI - Fifty Years Ago. PMID- 29015397 TI - Chloromycetin. PMID- 29015396 TI - Serological Technique (Contd.). PMID- 29015399 TI - Current Topics, Etc. PMID- 29015398 TI - A Study on the Health Habits of a Rural Community in West Bengal in the Matter of Medical Relief with Special Reference to the Utilization of Free Medical Service. PMID- 29015400 TI - Medical News. PMID- 29015401 TI - Fifty Years Ago. PMID- 29015403 TI - Polio: Two New Points. PMID- 29015402 TI - Treatment of Typhoid Fever with Bacteriophage. PMID- 29015404 TI - Abstracts from Reports. PMID- 29015405 TI - Current Topics, Etc. PMID- 29015406 TI - Aureomycin in Tropical Eosinophilia. PMID- 29015408 TI - Points from a Letter. PMID- 29015407 TI - Treatment of Cholera. PMID- 29015409 TI - Medical News. PMID- 29015410 TI - Sudden Heart Failure. PMID- 29015411 TI - Current Topics, Etc. PMID- 29015412 TI - Correspondence. PMID- 29015413 TI - Abstracts from Reports. PMID- 29015414 TI - Sulphonamides and Sulphones. PMID- 29015416 TI - Medical News. PMID- 29015415 TI - Treatment of Infantile Cirrhosis of the Liver. PMID- 29015417 TI - Kala-Azar in India and the Sandfly. PMID- 29015418 TI - Paludrine Poisoning. PMID- 29015419 TI - Sulpha and Sulphone Drugs. PMID- 29015420 TI - The Treponematoses. PMID- 29015421 TI - Fifty Years Ago. PMID- 29015422 TI - Acute Paludrine Poisoning. PMID- 29015423 TI - Report on the Epidemic of Anterior Poliomyelitis in the Nicobar Islands. PMID- 29015424 TI - Cases of Sprue Treated by Laparotomy. PMID- 29015425 TI - A Case of Plastic Bronchitis. PMID- 29015426 TI - A New Operation for Entropion and Trichiasis of the Upper Eyelids. PMID- 29015428 TI - Homicide and Capital Punishment. PMID- 29015427 TI - Lymphadenoma of the Salivary Glands. PMID- 29015429 TI - Erratum: A Simple Method of Cutting Serial Sections of Ticks. AB - [This corrects the article on p. 181 in vol. 83.]. PMID- 29015430 TI - Sebaceous Horn Penis. PMID- 29015431 TI - A Case of Bacteraemia Caused by Bacterium Alkaligenes Faecalis. PMID- 29015432 TI - Fifty Years Ago. PMID- 29015433 TI - Serological Technique (Contd.). PMID- 29015434 TI - Corneal Opacities among Children of a Railway Colony in the Dekkan. PMID- 29015435 TI - Service Notes. PMID- 29015436 TI - Any Questions. PMID- 29015437 TI - Extrapleural Plombage with Lucite Spheres. PMID- 29015438 TI - Anti-Tuberculosis Measures by South African Indians. PMID- 29015439 TI - Between Ourselves on Preparing a Theme. PMID- 29015440 TI - Notes on Some Remedies. XXII. Blood Transfusion, Part I. PMID- 29015441 TI - Three Cases of Iso-Immunization against Rh Antigen Found in Five Weeks in Calcutta and Associated Considerations. PMID- 29015442 TI - Medical News. PMID- 29015443 TI - Aneurysm of Thoracic Aorta. PMID- 29015444 TI - Current Topics, Etc. PMID- 29015445 TI - Current Topics, Etc. PMID- 29015446 TI - Generalized Cysticercosis Cellulosae. PMID- 29015448 TI - Any Questions. PMID- 29015447 TI - Advertisements in Medical Journals. PMID- 29015450 TI - Medical News. PMID- 29015449 TI - Erratum. AB - [This corrects the article on p. 272 in vol. 85.]. PMID- 29015451 TI - Fifty Years Ago. PMID- 29015452 TI - Abstracts from Reports. PMID- 29015454 TI - Paludrine Poisoning. PMID- 29015453 TI - Paludrine Poisoning. PMID- 29015455 TI - Medical Councils. PMID- 29015456 TI - Service Notes. PMID- 29015457 TI - Allergy: Newer Knowledge. PMID- 29015458 TI - Medical News. PMID- 29015459 TI - The King's Health. PMID- 29015460 TI - Current Topics, Etc. PMID- 29015462 TI - Fifty Years Ago. PMID- 29015461 TI - Trial of Streptomycin in Plague. PMID- 29015463 TI - A Case of Hyperplastic Ileocaecal Tuberculosis Treated with Pneumoperitoneum. PMID- 29015464 TI - M. T. Malaria Simulating Acute Abdomen. PMID- 29015465 TI - Glucose Injection. PMID- 29015466 TI - The Experience of 'Air Embolism-Pleural Shock during Artificial Pneumothorax in Pulmonary Tuberculosis Cases'. PMID- 29015468 TI - By Gum They Are Stuck. PMID- 29015467 TI - Medical Books. PMID- 29015469 TI - Effect of Penicillin on Vaccine Virus and Its Value in Purification of Vaccine Lymph. PMID- 29015470 TI - Lipomas, Big and Small. PMID- 29015471 TI - Notes on Some Remedies. XXIV. Blood Transfusion. Part III. PMID- 29015473 TI - Service Notes. PMID- 29015472 TI - Abstracts from Reports. PMID- 29015475 TI - Medical News. PMID- 29015474 TI - The Place of Vasectomy in Leprosy Control. PMID- 29015476 TI - Serological Technique(Contd.). PMID- 29015477 TI - Higher Medical Qualifications at Home. PMID- 29015478 TI - Treatment of Paralytic Ileus. PMID- 29015479 TI - Selection of Medical Teachers. PMID- 29015481 TI - Current Topics, Etc. PMID- 29015480 TI - Further Observations on Parenteral Paludrine Hydrochloride in Malarial Fevers. PMID- 29015482 TI - Any Questions. PMID- 29015483 TI - Leprosy Sufferers Need 'New Deal'. PMID- 29015484 TI - Fifty Years Ago. PMID- 29015486 TI - Industrial Medicine. PMID- 29015485 TI - Thrombo-Angiitis Obliterans Treated by Bilateral Lumbar Sympathectomy. PMID- 29015487 TI - Seventy Five Years Ago. PMID- 29015488 TI - Comparative Studies of Liver Function Tests in Infective Hepatitis. PMID- 29015489 TI - Erratum: Serological Classification of C. Diphtheriae in Calcutta. AB - [This corrects the article on p. 28 in vol. 89.]. PMID- 29015490 TI - Chronic Brucellosis. PMID- 29015491 TI - Erratum: Scrub Typhus in the Karnal District of Punjab (India). AB - [This corrects the article on p. 621 in vol. 88.]. PMID- 29015492 TI - Fifty Years Ago. PMID- 29015493 TI - A Comparative Study of Phthalylsulphathiazol, Chloromycetin and Aureomycin in the Treatment of Cholera. PMID- 29015494 TI - Unusual Foreign Body in Abdomen. PMID- 29015495 TI - Post-Operative Appraisal of 1100 Surgical Cases. PMID- 29015497 TI - The Radio Active Ash. PMID- 29015496 TI - Mair's Dermatoplasty. PMID- 29015498 TI - Twenty Five Years Ago. PMID- 29015499 TI - Anthropometry and Blood Pressure of 6,000 Bihari Officers and Men of the West Bengal, Calcutta and Bihar Police Forces and West Bengal Fire Services. PMID- 29015501 TI - Current Topics, Etc. PMID- 29015500 TI - Medical News. PMID- 29015502 TI - X-Ray Appearances in the Lung Fields in Tropical Eosinophilia. PMID- 29015503 TI - Erratum: Murine Typhus in Karnal City. AB - [This corrects the article on p. 623 in vol. 88.]. PMID- 29015504 TI - Idiopathic Volvulus and Intussusception of the Turminal Ileum in the Adult. PMID- 29015505 TI - Tuberculosis of the Skin-Assessment of Clinical and Histological Changes Following Isonicotinic Acid Hydrazide Therapy. PMID- 29015506 TI - Indigenous Drugs in Experimental Diabetes. PMID- 29015508 TI - Seventy Five Years Ago. PMID- 29015507 TI - Growth and Survival of Cholera Vibrio in Relation to pH. PMID- 29015510 TI - Fifty Years Ago. PMID- 29015509 TI - A Case of Typhus in Rupar. PMID- 29015511 TI - Medical News. PMID- 29015512 TI - Recent Antimalarials in Giardiasis. PMID- 29015513 TI - Malignant Melanoma in the Nose (A Case Report). PMID- 29015514 TI - Relapses in Cerebral Malaria (Case Report). PMID- 29015515 TI - A Report on Two Further Cases of Encysted Guinea Worm Abscess. PMID- 29015516 TI - Current Topics, Etc. PMID- 29015517 TI - Twenty Five Years Ago. PMID- 29015519 TI - The Elusive Water Vibrio. PMID- 29015518 TI - Tropical Liver Abscess Affecting the Left Lobe. PMID- 29015520 TI - Institute of Child Health Trust. PMID- 29015522 TI - Seventy Five Years Ago. PMID- 29015521 TI - A Case of Typhoid Meningitis-Treated with Chloromycetin. PMID- 29015523 TI - Family Planning Work in Lucknow. PMID- 29015524 TI - Twenty Five Years Ago. PMID- 29015525 TI - A Case of Unusual Genital Malformation. PMID- 29015526 TI - Current Topics, Etc. PMID- 29015527 TI - Fifty Years Ago. PMID- 29015528 TI - An Experimental Study of Tromexan. PMID- 29015529 TI - Cat Scratch Disease (with a Case Report). PMID- 29015531 TI - Ovarian Tumour with Masculinizing Syndrome. PMID- 29015530 TI - Physiological Action of 'Resodec', a Cationic Exchange Synthetic Resin. PMID- 29015532 TI - Erratum: Kertoderma Blenorrhagica. AB - [This corrects the article on p. 157 in vol. 88.]. PMID- 29015533 TI - Erratum: The Wassermann Reaction in the Tropics. AB - [This corrects the article on p. 196 in vol. 88.]. PMID- 29015534 TI - Science Conference. PMID- 29015535 TI - Imperforate Anus, Rectovaginal and Rectovesical Fistulae. PMID- 29015536 TI - A Field Survey of Fasciolopsis Buski in Chandra in Area of Saharsa District (Bihar). PMID- 29015537 TI - Errata. AB - [This corrects the article on p. 33 in vol. 89.]. PMID- 29015538 TI - Medical News. PMID- 29015539 TI - Effect of Argemone Oil on Monkeys. PMID- 29015540 TI - Medical News. PMID- 29015541 TI - A Note on Vibrios Isolated in Kumbh Fair, Allahabad, 1954. PMID- 29015542 TI - Old Tales Retold: With Fresh Comments. PMID- 29015543 TI - Current Topics. PMID- 29015544 TI - The Kumph without Cholera: A Great Achievement. PMID- 29015545 TI - Twenty Five Years Ago. PMID- 29015546 TI - Idiopathic Pleuricy with Effusion and Its Sequelae. PMID- 29015547 TI - The Treatment of Pulmonary Tuberculosis, T. B. Meningitis and T. B. Pericarditis with the Combination of Isonicotinic Acid Hydrazide and Streptomycin. PMID- 29015549 TI - Seventy Five Years Ago. PMID- 29015548 TI - Antihistamimics in Cholera (A Reply). PMID- 29015551 TI - Radio Active Ash: A Portscript. PMID- 29015550 TI - Fifty Years Ago. PMID- 29015552 TI - A Report on the Isolation of Two Strains of Influenza B Virus in India. PMID- 29015553 TI - Convocation Address at the College of Physicians and Surgeons of Bombay. PMID- 29015554 TI - Sciatica and Brachial Neuritis as Complications of Brucellosis. PMID- 29015555 TI - Errata. AB - [This corrects the article on p. 122 in vol. 89.]. PMID- 29015556 TI - Seventy-Five Years Ago. PMID- 29015557 TI - Influence of Pyridoxine on Fat Metabolism in Phrynoderma. PMID- 29015558 TI - Brucellosis. PMID- 29015560 TI - Observation on BCG Vaccination of Nurses. PMID- 29015559 TI - Activities of Alkaline Phosphatase in Health and Disease: A Review of 185 Hospital Cases. PMID- 29015561 TI - Twenty Five Years Ago. PMID- 29015562 TI - Erratum: Mair's Dermatoplasty. AB - [This corrects the article on p. 221 in vol. 89.]. PMID- 29015563 TI - Current Topics, Etc. PMID- 29015564 TI - Drug Analysts' Conference. PMID- 29015565 TI - Errata. AB - [This corrects the article on p. 189 in vol. 89.]. PMID- 29015566 TI - Vegetarians and Malnutrition. PMID- 29015567 TI - Infantile Scurvy in the Punjab. PMID- 29015568 TI - Fifty Years Ago. PMID- 29015569 TI - Medical News. PMID- 29015572 TI - Twenty Five Years Ago. PMID- 29015571 TI - The Present Status of Dish Washing Procedures Adopted in Coffee Houses and Restaurants-A Bacteriological Assay. PMID- 29015573 TI - Birth of Monster Babies in Succession. PMID- 29015574 TI - Histoplasmin, Coccidioidin, Blastomycin, Tuberculin Sensitivity in Relation to Tropical Eosinophilia and Pulmonary Calcifications. PMID- 29015576 TI - Current Topics, Etc. PMID- 29015575 TI - Low Blood Vitamin A Levels in Dermatology. PMID- 29015577 TI - Old Tales Retold with Fresh Comments. PMID- 29015579 TI - Serological Classification of C. Diphtheriae in Calcutta. PMID- 29015578 TI - Clinical Observations with New Amoebicidal Drugs Part I: Trials with Resotren. PMID- 29015580 TI - Seventy Five Years Ago. PMID- 29015581 TI - Fifty Years Ago. PMID- 29015582 TI - Medical News. PMID- 29015585 TI - Comparative Study of the Treatment of Tuberculous Cervical Lymphadenitis with Special Reference of Streptomycin, P.A.S. and Isonicotinic Acid Hydrazide. PMID- 29015584 TI - Primary Carcinoma of the Liver. PMID- 29015583 TI - Streptomycin and Terramycin in the Treatment of Rat-Bite Fever Due to Spirillum Minus. PMID- 29015587 TI - Twenty Five Years Ago. PMID- 29015586 TI - High Vitamin a Levels in the Blood Serum in Certain Skin Diseases. PMID- 29015588 TI - Seventy Five Years Ago. PMID- 29015589 TI - Current Topics, Etc. PMID- 29015590 TI - Murine Typhus in Karnal City. PMID- 29015591 TI - Scrub Typhus in the Kanal District of Punjab (India). PMID- 29015592 TI - Fireside Fantasies. PMID- 29015593 TI - Analysis of Some Cooked Diets (Bengali). PMID- 29015594 TI - Fifty Years Ago. PMID- 29015595 TI - The Piltdown Man. PMID- 29015597 TI - Cor Pulmonale. PMID- 29015596 TI - Medical News. PMID- 29015598 TI - Guillain-Barre Syndrome with a Case Report. PMID- 29015599 TI - Cavernous Angioma Arising from Male Breast. PMID- 29015600 TI - The RH Subgroups in South Indians. PMID- 29015601 TI - Current Topics, Etc. PMID- 29015602 TI - Pulmonary Heart Disease with an Account of a Case. PMID- 29015603 TI - Medical News. PMID- 29015605 TI - Fifty Years Ago. PMID- 29015604 TI - Comparative Studies of Liver Function Tests in Portal Cirrhosis. PMID- 29015606 TI - Studies on Metabolism of Calcium, Inorganic Phosphorus and Cholesterol in Pregnancy with Helminthic Infection in Indian Women. PMID- 29015607 TI - Thoracoscopy and Intrapleural Pheumonolysis: Analysis of 354 Cases. PMID- 29015608 TI - Utilisation of Indian Dioxorea Plants for Preparation of Cortisone. PMID- 29015609 TI - General Instruction for Civil Hospital Diets. PMID- 29015611 TI - Medical News. PMID- 29015610 TI - The Diagnostic Significance of Tremors. PMID- 29015612 TI - Erythrocyte Sedimentation Rate in Health and Disease. PMID- 29015613 TI - Encephalitis: A Report of Eleven Cases. PMID- 29015614 TI - Effect of Methylxanthines on Blood Coagulation. PMID- 29015615 TI - Nutritional Peripheral Neuropathy Related to "The Shoulder Girdle Syndrome" in Persia and Iraq Force 1944-45 Part II. PMID- 29015616 TI - Fifty Years Ago. PMID- 29015617 TI - Chloramphenicol in Early Diagnosis of Typhoid. PMID- 29015618 TI - First World Conference on Medical Education. PMID- 29015619 TI - Erratum: Abstract with the Times Again. AB - [This corrects the article on p. 535 in vol. 88.]. PMID- 29015620 TI - C. S. F. in 105 Cases. PMID- 29015622 TI - Current Topics, Etc. PMID- 29015621 TI - Intestinal Thiamine Synthesis as Influenced by Different Fats. PMID- 29015623 TI - Seventy-Five Years Ago. PMID- 29015624 TI - Twenty-Five Years Ago. PMID- 29015625 TI - Sturge-Weber Syndrome (with an Illustrative Case Report). PMID- 29015626 TI - Acute Dilatation of Stomach during Operation for Gastric Carcinoma. PMID- 29015627 TI - WHO Press Release. PMID- 29015629 TI - Fifty Years Ago. PMID- 29015628 TI - Notes on Sand-Flies. Part V. PMID- 29015631 TI - Current Topics, Etc. PMID- 29015630 TI - An Analytical Study of Lymphadenopathy in Rajasthan. (160 Lymph Nodes). PMID- 29015632 TI - Isoncotinic Acid Hydrazide in the Treatment of Endometrial Tuberculosis. PMID- 29015634 TI - Epidemic Haemorrhagic Fever of Korea. PMID- 29015633 TI - Intussusception: Report of a Case in Adult Due to a Polyp in Small Intestine. PMID- 29015636 TI - Medical News. PMID- 29015635 TI - Nutritional Oedema and Consumption Level in Yet Another Food Scarcity Area of Bihar. PMID- 29015637 TI - Neuromyelitis Optica. PMID- 29015638 TI - Nutritional Peripheral Neuropathy Related to "The Shoulder Girdle Syndrome" in Persia and Iraq Force 1944-45. PMID- 29015639 TI - Protozoal Development and Natural Purification of Flowing Sewage. PMID- 29015640 TI - Current Topics, Etc. PMID- 29015641 TI - Fifty Years Ago. PMID- 29015642 TI - Medical News. PMID- 29015643 TI - Unusual Symptoms in Plasmodium Vivax Infection. PMID- 29015644 TI - Vitamin C and Antihistaminics in the Treatment of Uraemia in Cholera. PMID- 29015645 TI - Serum Calcium and Phosphorus, 24 Hours after Massive Calciferol Therapy. PMID- 29015646 TI - The Treatment of Malaria with Resochin. PMID- 29015647 TI - Epidemiology of XK Typhus in Jamshedpur. PMID- 29015649 TI - Abreast with the Times Again. PMID- 29015648 TI - Trichophyton Purpureum Infection in India. PMID- 29015650 TI - Treatment of Abdominal Tuberculosis with PAS. PMID- 29015651 TI - A Case of Central Placenta Praevia with Natural Spontaneous Delivery. PMID- 29015652 TI - Wassermann Reaction and Slide Modification of Meinicke's Test-A Comparative Study on 10,193 Sera. PMID- 29015653 TI - A Case of Acute Lymphatic Leukaemia in an Adult Treated with Antifolic Acid Substance. PMID- 29015654 TI - Dietary Habits of School Boys in Uttar Pradesh. PMID- 29015655 TI - Notes on Sand-Flies: Part IV-Some Important Variations in the Morphology of Phlebotomus Argentipes Found in Poona. PMID- 29015657 TI - Fifty Years Ago. PMID- 29015656 TI - Health Conditions of the Seamen at the Port of Calcutta: A Preliminary Report. PMID- 29015658 TI - Thromboangiitis Obliterans. PMID- 29015659 TI - Current Topics, Etc. PMID- 29015660 TI - Studies on Metabolism of Calcium, Inorganic Phosphorus and Cholesterol in Pre Eclamptic Toxaemias of Pregnancy. PMID- 29015661 TI - Use of DDT for the Control of Cyclops Breeding and as an Antidracontiasis Measure. PMID- 29015663 TI - Medical News. PMID- 29015662 TI - Chronic Encysted Guinea-Worm Lesion. PMID- 29015665 TI - Medical News. PMID- 29015664 TI - Terramycin as a Therapeutic Agent against Mumps. PMID- 29015666 TI - Free Visits. PMID- 29015667 TI - U. K. Flood-Relief Supplies to India. PMID- 29015668 TI - Four Lakh Workers to Benefit Free Medical Care through Panel Doctors. PMID- 29015669 TI - U.K. Offers Milk to Overseas Dependencies. PMID- 29015671 TI - On Divali Night. PMID- 29015670 TI - Brightening of Homes in the Tropics: Interior Colour Wash. PMID- 29015672 TI - A System of Automassage. PMID- 29015673 TI - Aiding Asian Students' Welfare. PMID- 29015674 TI - Co-Existence of Pulmonary and Cutaneous Tuberculosis. PMID- 29015675 TI - Tuberculous Meningitis Domiciling Treatment Non Possible. PMID- 29015676 TI - Sickness Benefit. PMID- 29015677 TI - Fat People Lose Weight Communally. PMID- 29015678 TI - Prehistoric Cockroach Is Modern Pest. PMID- 29015679 TI - Benefits in Cash. PMID- 29015680 TI - Generous Pensions. PMID- 29015681 TI - Seventy Five Years Ago. PMID- 29015683 TI - Regional Organisations. PMID- 29015682 TI - Dichroa Febrifuga and a Synthetic Hydrangea Alkaloid in Malaria. PMID- 29015684 TI - An Unusual Case of Aneurysm of the Sinus of Valsalva Dissecting into the Ventricular Septum and the Left Auricle. PMID- 29015685 TI - Twenty Five Years Ago. PMID- 29015686 TI - A Case of Mysophobia. PMID- 29015688 TI - Current Topics, Etc. PMID- 29015687 TI - Erratum: An Erratum. AB - [This corrects the article on p. 431 in vol. 89.]. PMID- 29015689 TI - Fifty Years Ago. PMID- 29015690 TI - Benign Lymphogranulomatosis. PMID- 29015691 TI - Projects in India. PMID- 29015692 TI - Free Medical Care. PMID- 29015694 TI - Errors in Dispensing Due to Confusion of Weights. PMID- 29015693 TI - Transmission of Kala-Azar in India. PMID- 29015695 TI - Current Topics. PMID- 29015696 TI - The Sulphonamides in Bacillary Dysentery. PMID- 29015697 TI - Wound Shock. PMID- 29015698 TI - Service Notes. PMID- 29015699 TI - Some Observations on Fly Breeding in Compost Trenches. PMID- 29015700 TI - Erratum: Weight, Height and Chest Measurements, etc. AB - [This corrects the article on p. 301 in vol. 80.]. PMID- 29015701 TI - The Control of Acute Bacterial Respiratory Diseases by Sulpha-Drugs. PMID- 29015702 TI - Abstracts from Reports. PMID- 29015703 TI - Endemic Fluorosis in Western Kweichow. PMID- 29015704 TI - Medical News. PMID- 29015705 TI - Congenital Absence of the Shaft of the Femur on Both Sides. PMID- 29015706 TI - Non-Traumatic Rupture of the Spleen: With a Case Report. PMID- 29015707 TI - Prevention of Smallpox by Vaccination and Revaccination: A Critical Study. PMID- 29015709 TI - Scabies in Bengal. PMID- 29015708 TI - Sulphanilyl Benzamide in the Treatment of Bacillary Dysentery. PMID- 29015710 TI - A Clinical Study of 89 Cases of Encephalitis. PMID- 29015711 TI - A Patient with Many Diseases. PMID- 29015712 TI - Sulphanilylguanidine in Cholera. PMID- 29015715 TI - Sulphanilamide in Acute Nephritis: A Study of 22 Cases. PMID- 29015714 TI - Treatment of Cerebro-Spinal Fever with Sulphapyridine : Observations on 464 Cases. PMID- 29015713 TI - A Note on the Presence of 'O' Agglutinins in the Blood of Cholera Patients. PMID- 29015716 TI - Hypodermic Solution of Sulphate of Quinine. PMID- 29015717 TI - Atypical Malarial Gametocytes in the Peripheral Blood. PMID- 29015718 TI - The Action of Drugs on Dysentery Bacteriophage. PMID- 29015720 TI - Service Notes. PMID- 29015719 TI - Guinea-Pig Inoculation in the Diagnosis of Tuberculosis. PMID- 29015721 TI - Rural Medical Relief. PMID- 29015723 TI - Science and India. PMID- 29015722 TI - Weight, Height and Chest Measurements in Classification of Types of Individuals. PMID- 29015724 TI - Corrigendum. AB - [This corrects the article on p. 157 in vol. 80.]. PMID- 29015725 TI - Abstracts from Reports. PMID- 29015726 TI - Medical News. PMID- 29015727 TI - A Case Illustrating the Association between Chicken-Pox and Herpes Zoster. PMID- 29015729 TI - Current Topics. PMID- 29015728 TI - A Case of Fracture of the Base of Skull Resulting in Blindness. PMID- 29015730 TI - Control of Fly-Breeding in Compost Heaps. PMID- 29015731 TI - Erratum: Serum Transfusions in Air-Raid Casualties in South-East Bengal. AB - [This corrects the article on p. 611 in vol. 79.]. PMID- 29015732 TI - Corrigendum. AB - [This corrects the article on p. 132 in vol. 80.]. PMID- 29015733 TI - Debridement. PMID- 29015735 TI - Pseudo-Paralysis Due to Scorbutic Epiphysitis. PMID- 29015734 TI - The Immediate Need of Reform of the Medical Councils of India. PMID- 29015736 TI - M 3349 (Paludrine) in the Treatment of Human Malaria. PMID- 29015737 TI - Individual Variations in the Absorption of Drugs from the Gastrointestinal Tract. PMID- 29015738 TI - Some Observations on Krukenberg Tumour of Ovary. PMID- 29015739 TI - Service Notes. PMID- 29015741 TI - Medical News. PMID- 29015740 TI - Larvicidal Fish of Kangra Valley-Schizothorax Progastus. PMID- 29015742 TI - Abstracts from Reports. PMID- 29015743 TI - Fever in a Hyper-Endemic Malarial Area: A Critical Analysis of 2,913 Cases. PMID- 29015744 TI - The Copper-Sulphate Specific-Gravity Method of Blood Analysis. PMID- 29015745 TI - Organization of Traumatic Surgery. PMID- 29015746 TI - A Case of Post-Influenzal Granulocytopenia Treated with Liver. PMID- 29015747 TI - On the D.E.C. Medium of Panja and Ghosh. PMID- 29015748 TI - Ovarian Tumour in a Three-Year-Old Child. PMID- 29015749 TI - Cerebral Malaria. PMID- 29015750 TI - Current Topics. PMID- 29015751 TI - Effect of Penicillin on a Case of Ulcus Tropicum (Naga Sore). PMID- 29015752 TI - Persistent Intractable Headache in an Adult Caused by Ascaris Lumbricoides. PMID- 29015753 TI - Agranulocytosis. PMID- 29015754 TI - Rejected Articles. PMID- 29015756 TI - Current Topics. PMID- 29015755 TI - Treatment of Carbuncle with Penicillin. PMID- 29015757 TI - Service Notes. PMID- 29015758 TI - Abstracts from Reports. PMID- 29015759 TI - Burns and Scalds. PMID- 29015760 TI - Medical News. PMID- 29015761 TI - Medical News. PMID- 29015762 TI - Observations on Malaria and Other Conditions Seen in Burma Evacuees. PMID- 29015763 TI - Subacute Constrictive Pericarditis. PMID- 29015764 TI - Natarphal (C. Bonducella) in Malarial Fevers. PMID- 29015765 TI - A Case of Schistosomiasis Infection Contracted in India. PMID- 29015766 TI - Amoebiasis of the Anus and Perineum: With Report of a Case. PMID- 29015767 TI - Service Notes. PMID- 29015768 TI - Experimental Studies in Rat-Bite Fever. PMID- 29015769 TI - Voges-Proskauer Test with Leifson's Reagent. PMID- 29015770 TI - Penicillin in the Treatment of Wounds. PMID- 29015771 TI - Fulminating or Malignant Cerebrospinal Fever. PMID- 29015772 TI - A Case of Filariasis of the Eye. PMID- 29015774 TI - Current Topics. PMID- 29015773 TI - The Diagnosis of Early Gastric Cancer: With a Review of 60 Cases. PMID- 29015775 TI - Malaria Parasite Findings in Blood Films in Relation to Malaria Forecasts in Ceylon. PMID- 29015776 TI - The Distribution of Typhoid Vi Agglutinins in Normal Sera with Special Reference to Their Diagnostic Value in Typhoid Fever. PMID- 29015777 TI - Infectious Mononucleosis: Glandular Fever. PMID- 29015778 TI - Abstracts from Reports. PMID- 29015780 TI - Oriental Sore in the Nizam's Dominions: Some Epidemiological Factors. PMID- 29015779 TI - Nutritional Diarrhoea. PMID- 29015781 TI - 'Entero-Vioform' and 'Vioform'. PMID- 29015782 TI - Amoebiasis and Blackwater Fever. PMID- 29015783 TI - Coma Due to Malaria. PMID- 29015784 TI - Some Physical and Immunological Reactions of RBC 'Juice' and Stroma. PMID- 29015786 TI - Paludrine-M.4888. PMID- 29015785 TI - Weight, Height and Chest Measurements in the Classification of Types of Individuals. PMID- 29015788 TI - Service Notes. PMID- 29015787 TI - Malarial Infection in the New-Born. PMID- 29015789 TI - Medical News. PMID- 29015790 TI - Treatment of Cerebro-Spinal Fever with Sulphapyridine. PMID- 29015791 TI - Protein Hydrolysate in Infective Hepatitis. PMID- 29015793 TI - Papilloma of the Bladder in a Child Three Years Old. PMID- 29015792 TI - Paludrine-M.4888. PMID- 29015795 TI - Current Topics. PMID- 29015794 TI - Idiopathic Gangrene of the Scrotum. PMID- 29015796 TI - Abstracts from Reports. PMID- 29015798 TI - Beri-Beri: Adult and Infantile. PMID- 29015797 TI - Blood Staining for Malaria Parasites. PMID- 29015799 TI - The Intervertebral Disc and Sciatica. PMID- 29015800 TI - The Copper Sulphate Specific Gravity Method of Blood Analysis. PMID- 29015801 TI - Service Notes. PMID- 29015802 TI - Current Topics. PMID- 29015803 TI - Medical News. PMID- 29015804 TI - Toronto Unit. PMID- 29015806 TI - Abstracts from Reports. PMID- 29015805 TI - Prevention of Smallpox by Vaccination and Revaccination. PMID- 29015808 TI - Service Notes. PMID- 29015807 TI - Current Topics. PMID- 29015809 TI - Medical News. PMID- 29015810 TI - Medical News. PMID- 29015811 TI - Abstracts from Reports. PMID- 29015812 TI - Current Topics. PMID- 29015813 TI - Industrialization of India and Its Likely Effect on Tuberculosis Problems. PMID- 29015814 TI - The Fight against Tuberculosis in India: A New Weapon Needed. PMID- 29015815 TI - The Medical Profession in India and Its Education. PMID- 29015816 TI - The Planning of a Tuberculosis Survey to Determine the Morbidity Rate (With Special Reference to Indian Conditions). PMID- 29015818 TI - Service Notes. PMID- 29015817 TI - Lobectomy for Abscess of the Lung. PMID- 29015819 TI - A Study of Certain Factors Influencing Results of Artificial Pneumothorax Treatment. PMID- 29015820 TI - Corrigendum. AB - [This corrects the article on p. 607 in vol. 79.]. PMID- 29015821 TI - Simultaneous Bilateral 'Early Infiltration' in a Middle-Aged Patient. PMID- 29015822 TI - Tropical Eosinophilia: A Report on Fifteen Cases. PMID- 29015823 TI - The Normal Movements of the Colon after Barium Meal in Indians and Europeans. PMID- 29015824 TI - Tropical Eosinophilia. PMID- 29015825 TI - University of Madras. PMID- 29015826 TI - An Anti-Tuberculosis Scheme for an Indian City. PMID- 29015827 TI - Carbohydrate Metabolism in the Different Pathological Types of Pulmonary Tuberculosis. PMID- 29015828 TI - Tolerance to Enterovioform Tablets. PMID- 29015829 TI - Some Biochemical Normals in Bengalis. PMID- 29015830 TI - A Case of Post-Concussional Headache. PMID- 29015831 TI - Solitary Splenic Cyst: Report of a Case. PMID- 29015832 TI - Cerebral Embolism Following Antrum Puncture. PMID- 29015833 TI - Malarial Infection in the New Born. PMID- 29015834 TI - A Case of Retroperitoneal Abscess. PMID- 29015835 TI - Tropical Pyomyositis (Bung-Pagga's Disease). PMID- 29015836 TI - Abstracts from Reports. PMID- 29015837 TI - Two Cases of Anthrax Treated with Sulphanilamide. PMID- 29015838 TI - A Simplified Leucotome. PMID- 29015839 TI - A Note on Two Cases of 'Sliding' Hernia. PMID- 29015840 TI - Cerebral Malaria. PMID- 29015841 TI - The Parasitology of Malaria among Destitutes in Calcutta during and after the Bengal Famine of 1943. PMID- 29015842 TI - A New Manifestation of Ariboflavinosis. Lesions of the Vulva. PMID- 29015843 TI - Sulphonamide Amblyopia and Its Treatment with Nicotinic Acid. PMID- 29015845 TI - Quinine Sulphate for Intramuscular Injections. PMID- 29015844 TI - 'Tropical Ulcer' in East Khandesh. Treatment with Sulphathiazole Cod-Liver Oil Paste. PMID- 29015846 TI - Treatment of Cholera with Atebrin. PMID- 29015847 TI - Penicillin in the Treatment of Wounds. PMID- 29015848 TI - Synthesis of Vitamins in the Human Gut. PMID- 29015850 TI - Service Notes. PMID- 29015849 TI - A Case of Tropical Eosinophilia Developing Agranulocytic Angina during Arsenical Therapy. PMID- 29015851 TI - Typhus in Kashmir. PMID- 29015852 TI - Pulmonary Arteriosclerosis Producing Unusual Murmurs at the Base of the Heart. PMID- 29015853 TI - Post-Sulphapyridine Anuria. PMID- 29015854 TI - Investigation into the Toxicity of Large Volume Serum Transfusions. PMID- 29015855 TI - Medical News. PMID- 29015856 TI - Intradiploic Epidermoid of the Skull. PMID- 29015857 TI - Gnathostome Infection of the Eye. PMID- 29015858 TI - Current Topics. PMID- 29015859 TI - Malarial Nephritis. PMID- 29015860 TI - Massive Epistaxis in Benign Tertian Malaria. PMID- 29015862 TI - Sulphonamides in Urine: A Simple Test for Detection. PMID- 29015861 TI - Control of Sepsis in War Wounds by Pre-Surgical Treatment: Preliminary Report. PMID- 29015863 TI - Current Topics. PMID- 29015864 TI - Maternal Blood in Whooping Cough. PMID- 29015865 TI - Typhus Fever in Gilgit. PMID- 29015866 TI - The Causation of Cancer with Special Reference to Endocrine Influence. PMID- 29015867 TI - A Case of Gas Gangrene and Tetanus Treated with Sulphapyridine. PMID- 29015868 TI - Tuberculosis of the Skull. PMID- 29015869 TI - Complement Fixation Test for Kala-Azar. PMID- 29015871 TI - Exo-Erythrocytic Forms of Malaria Parasites. PMID- 29015870 TI - Fracture-Dislocation of the Cervical Spine. A Case Report. PMID- 29015872 TI - Famine OEdema and Its Treatment with Mercurial Diuretics. PMID- 29015873 TI - Surgical Emphysema as a Diagnostic Sign of Gastric or Intestinal Perforation. PMID- 29015874 TI - Sulphonamides in Peritoneal Surgery. PMID- 29015876 TI - Abstracts from Reports. PMID- 29015875 TI - Two Cases Showing Cerebral Symptoms after Treatment with Quinacrine for Malaria. PMID- 29015877 TI - A Case of Viper Bite. PMID- 29015878 TI - Inguinal Hernias: Their Commoner Varieties and Operative Treatment. PMID- 29015879 TI - An Experiment in Rural Medical Relief. PMID- 29015880 TI - Rural Dispensaries in Bengal : Causes of Their Unpopularity and a Plea for Their Improvement in the Scheme of Post-War Reorganization of Medical Relief. PMID- 29015881 TI - Synergistic Effect of Sulphanilyl Benzamide on V. Cholerae Bacteriophage. PMID- 29015882 TI - Report on an Epidemic of Scrub Typhus (K Form) Treated at a General Hospital in Burma. PMID- 29015883 TI - Ectopia Vesicae: Four Cases: Pyelographic Studies in a Child Aged One Year. PMID- 29015884 TI - Dehydration Treated by Continuous Gastric Drip. PMID- 29015885 TI - Compound Fracture of the Leg with Gas Gangrene Treated with Penicillin. PMID- 29015886 TI - Modified Kligler's Iron Agar Medium for the Isolation of Intestinal Pathogens. PMID- 29015887 TI - Prostigmine in a Case of Paroxysmal Tachycardia. PMID- 29015888 TI - A Case of Complete Inversion of Uterus. PMID- 29015889 TI - Empyema with Contra-Lateral Pneumonia Treated with Penicillin. PMID- 29015891 TI - Medical News. PMID- 29015890 TI - Ocular Complications in Smallpox. PMID- 29015892 TI - A Case of Hyperglycaemia Showing an Unusual Response to Thyroid Therapy. PMID- 29015894 TI - Service Notes. PMID- 29015893 TI - Sketch of a Mosquito-Proof Room. PMID- 29015895 TI - The Use of Blood Tests in Excluding Paternity and Maternity. PMID- 29015897 TI - Streptococcal Meningitis in an Infant Treated with Penicillin. PMID- 29015896 TI - A Case of Acute Yellow Atrophy of the Liver. PMID- 29015898 TI - Sulphathiazole and Acute Mastoiditis. PMID- 29015900 TI - Congenital Absence of the Shaft of the Femur on Both Sides. PMID- 29015899 TI - Heparin in Penicillin Therapy. PMID- 29015902 TI - Service Notes. PMID- 29015901 TI - Caesarean Section. PMID- 29015903 TI - Tropical Eosinophilia. PMID- 29015904 TI - Current Topics. PMID- 29015905 TI - The Immediate Need of Reform of the Medical Councils of India. PMID- 29015906 TI - Abstracts from Reports. PMID- 29015907 TI - Treatment of Indian Kala-Azar. PMID- 29015908 TI - General Medical Practice. PMID- 29015909 TI - Medical News. PMID- 29015910 TI - Limitations of Sulphonamide Therapy in Surgery. PMID- 29015911 TI - Current Topics. PMID- 29015912 TI - Three Statements on the Health of India and Associated Observations. PMID- 29015913 TI - Service Notes. PMID- 29015915 TI - Pharmacy Bill. PMID- 29015914 TI - Medical News. PMID- 29015916 TI - Service Notes. PMID- 29015917 TI - Abstracts from Reports. PMID- 29015918 TI - Medical News. PMID- 29015919 TI - Paludrine (M.4888). PMID- 29015921 TI - Current Topics. PMID- 29015920 TI - Parenteric Fever. PMID- 29015922 TI - Penicillin Therapy. PMID- 29015924 TI - Intravenous Anaesthesia. PMID- 29015923 TI - Infective Hepatitis and Catarrhal Jaundice. PMID- 29015925 TI - Service Notes. PMID- 29015926 TI - Medical News. PMID- 29015928 TI - Service Notes. PMID- 29015927 TI - Current Topics. PMID- 29015929 TI - Abstracts from Reports. PMID- 29015930 TI - Medical News. PMID- 29015931 TI - Power and Procedure of the General Medical Council of Great Britain and Ireland, and Their Influence on Indian Medical Affairs. PMID- 29015933 TI - Current Topics. PMID- 29015932 TI - Venereal Diseases Number. PMID- 29015934 TI - Any Questions. PMID- 29015936 TI - Service Notes. PMID- 29015935 TI - Pharmacy Bill. PMID- 29015938 TI - Current Topics. PMID- 29015937 TI - Stethoscope versus X-Rays. PMID- 29015939 TI - Abstracts from Reports. PMID- 29015940 TI - Medical News. PMID- 29015942 TI - Vitaminized Chocolates. PMID- 29015941 TI - Erratum: The Wassermann Positive Rate of Cases from Hospitals and Venereal Clinics of Calcutta in 1939, 1943, 1944 and 1945. AB - [This corrects the article on p. 633 in vol. 80.]. PMID- 29015944 TI - Service Notes. PMID- 29015943 TI - Fireside Fantasies. PMID- 29015945 TI - Any Questions. PMID- 29015946 TI - Vaccination for Smallpox. PMID- 29015947 TI - Storage of Penicillin. PMID- 29015948 TI - Antibiotics. PMID- 29015949 TI - Correspondence. PMID- 29015951 TI - Medical News. PMID- 29015950 TI - Current Topics. PMID- 29015952 TI - Current Topics. PMID- 29015953 TI - Service Notes. PMID- 29015955 TI - Abstracts from Reports. PMID- 29015954 TI - Sulphapyridine and Sulphathiazole as Helminthagogue. PMID- 29015956 TI - Hair on the Index Finger. PMID- 29015957 TI - Any Questions. PMID- 29015958 TI - Erratum: Serological Technique. AB - [This corrects the article on p. 352 in vol. 81.]. PMID- 29015959 TI - Synthetic Folic Acid. PMID- 29015960 TI - Medical News. PMID- 29015961 TI - Any Questions. PMID- 29015962 TI - Current Topics. PMID- 29015963 TI - Service Notes. PMID- 29015964 TI - Erratum: Penicillin Therapy Compared with Sulphonamide Therapy in Cerebrospinal Fever. AB - [This corrects the article on p. 113 in vol. 81.]. PMID- 29015965 TI - Vaccination for Smallpox. PMID- 29015967 TI - Medical News. PMID- 29015968 TI - Erratum: Treatment of Oriental Sore by X-Rays. AB - [This corrects the article on p. 251 in vol. 81.]. PMID- 29015969 TI - Venereal Diseases Other Than Syphilis, Gonorrhoea and Soft Sore. PMID- 29015970 TI - Abstracts from Reports. PMID- 29015972 TI - Venereal Diseases in India. PMID- 29015971 TI - Service Notes. PMID- 29015973 TI - Abstracts from Reports. PMID- 29015974 TI - Current Topics. PMID- 29015976 TI - Medical News. PMID- 29015975 TI - AEtiology of Nephritis. PMID- 29015978 TI - Comfort for the Middle-Aged. PMID- 29015977 TI - Pharmacy Bill. PMID- 29015979 TI - Pharmacy Bill. PMID- 29015981 TI - Feeding the Worker. PMID- 29015980 TI - Transmission of Kala-Azar. PMID- 29015983 TI - Abstracts from Reports. PMID- 29015982 TI - Service Notes. PMID- 29015985 TI - Drunkenness: Results of Chemical Tests of Blood Taken from Unconscious Person-Use during Trial-Self-Incrimination. PMID- 29015984 TI - Pharmacy Bill. PMID- 29015986 TI - Medical News. PMID- 29015987 TI - Erratum: Ocular Manifestations of Avitaminosis in Adults. AB - [This corrects the article on p. 188 in vol. 81.]. PMID- 29015988 TI - Evidence Held Sufficient to Show That Death Caused by Tetanus Arose out of the Deceased's Employment. PMID- 29015989 TI - Current Topics. PMID- 29015990 TI - Medical News. PMID- 29015991 TI - Recent Developments in Tuberculosis Control in the West and Their Application to India. PMID- 29015992 TI - Metallic Dermatitis. PMID- 29015994 TI - Medical News. PMID- 29015993 TI - Transmission of Wuchereria Bancrofti. PMID- 29015996 TI - Tuberculosis in Sailors in Calcutta and Associated Considerations. PMID- 29015995 TI - Encephalitis in Jamshedpur. PMID- 29015997 TI - A Report on Cases of Enteric Fever Treated with Combined Chloramphenicol and Aureomycin. PMID- 29015998 TI - Incidence of Lung Diseases among Seamen Examined at the Port of Calcutta in 1952. PMID- 29015999 TI - Fifty Years Ago. PMID- 29016000 TI - Current Topics, Etc. PMID- 29016001 TI - Testing of Insoluble Drugs and Oils for Their Bactericidal Properties. PMID- 29016002 TI - Twenty Five Years Ago. PMID- 29016003 TI - Typhoid Fever. PMID- 29016004 TI - Lipid Phosphorus in Plasma. PMID- 29016005 TI - Seventy Five Years Ago. PMID- 29016007 TI - Compounds and Complexes. PMID- 29016006 TI - Hypertension: A New ("Informative") Method for Its Evaluation, Study and Follow Up. PMID- 29016008 TI - Fifty Years Ago. PMID- 29016009 TI - Erratum: Laboratory Diagnosis of Smallpox. AB - [This corrects the article on p. 468 in vol. 89.]. PMID- 29016010 TI - Plasmacytoma. PMID- 29016011 TI - Master Mind in Medicine William Osler. PMID- 29016012 TI - Incidence and Distribution of Corneal Ulcer. PMID- 29016013 TI - Twenty Five Years Ago. PMID- 29016014 TI - Current Topics, Etc. PMID- 29016015 TI - Terramycin in Chronic Amoebic Dysentry. PMID- 29016016 TI - Clinical Observations with New Amoebicidal Drugs. PMID- 29016018 TI - Medical News. PMID- 29016017 TI - Two Problem Chest Cases. PMID- 29016020 TI - Pharmacopaeias and Adjuvants. PMID- 29016019 TI - Seventy Five Years Ago. PMID- 29016021 TI - Comparison of Nutrient Values of Individual Diets Found by Calculation from Food Tables and by Chemical Analysis. PMID- 29016023 TI - Fifty Years Ago. PMID- 29016022 TI - A Study on the Anthelmintic Action of the Cashew-Nut Shell Oil. PMID- 29016024 TI - Disseminated Hypersensitisation Neuropathy. PMID- 29016025 TI - Medical News. PMID- 29016026 TI - Early Widal and Chloromycetin in Typhoid Fever. PMID- 29016027 TI - Current Topics, Etc. PMID- 29016028 TI - Transvestism in the Male and beyond. PMID- 29016029 TI - Laboratory Diasnosis of Small Pox. PMID- 29016030 TI - Mercurial Diuretic in Thelapy with Special Reffrence to Control of Ascites in Hepatic Cirrhosis and Its Toxic Manifestation with Case Reports. PMID- 29016031 TI - Neurolosical Manifestations of Diabetes Mellitus. PMID- 29016032 TI - Errata. AB - [This corrects the article on p. 742 in vol. 89.]. PMID- 29016033 TI - Errata. AB - [This corrects the article on p. 736 in vol. 89.]. PMID- 29016035 TI - Errata. AB - [This corrects the article on p. 717 in vol. 89.]. PMID- 29016034 TI - Fireside Fantasies. PMID- 29016037 TI - Errata. AB - [This corrects the article on p. 485 in vol. 89.]. PMID- 29016036 TI - Erratum: Old Tales Retold with Fresh Comments. AB - [This corrects the article on p. 552 in vol. 89.]. PMID- 29016038 TI - Pantry, Kitchen & Servant's Quarters. PMID- 29016039 TI - Twenty Five Years Ago. PMID- 29016040 TI - How the Students of Olso Entered the Hotel Business. PMID- 29016041 TI - Errata. AB - [This corrects the article on p. 166 in vol. 89.]. PMID- 29016042 TI - Errata. AB - [This corrects the article on p. 481 in vol. 89.]. PMID- 29016043 TI - Errata. AB - [This corrects the article on p. 523 in vol. 89.]. PMID- 29016044 TI - Errata. AB - [This corrects the article on p. 664 in vol. 89.]. PMID- 29016045 TI - Errata. AB - [This corrects the article on p. 523 in vol. 89.]. PMID- 29016047 TI - Fifty Years Ago. PMID- 29016046 TI - Studies of Adreno-Cortical Function Tests in Portal Cirrhosis. PMID- 29016048 TI - Colds, Cougas and Fevers of Winter in Calcutta. PMID- 29016049 TI - Errata. AB - [This corrects the article on p. 541 in vol. 89.]. PMID- 29016051 TI - Errata. AB - [This corrects the article on p. 395 in vol. 89.]. PMID- 29016050 TI - A Priliminary Note on the Pharmacological Study on Reserpine a New Alkaloid Isolated from Rauwolfia Serpentina. PMID- 29016052 TI - Current Topics, Etc. PMID- 29016053 TI - Errata. AB - [This corrects the article on p. 290 in vol. 89.]. PMID- 29016054 TI - Genesis of Nutritional Oedema. PMID- 29016056 TI - Seventy Five Years Ago. PMID- 29016055 TI - A System of Automassage. PMID- 29016057 TI - Medical News. PMID- 29016058 TI - Fifty Years Ago. PMID- 29016059 TI - An Epidemic of Kock Weeks Conjunctivities. PMID- 29016061 TI - Seventy Five Years Ago. PMID- 29016060 TI - Trichinella Spiralis Infection in a Cat That Died in the Zoological Gardens, Bombay. PMID- 29016062 TI - Twenty Five Years Ago. PMID- 29016063 TI - Defence Industries in India. PMID- 29016064 TI - Social Welfare. PMID- 29016065 TI - Microfilarial Periodicity. PMID- 29016066 TI - Treatment of Amoebiasis. PMID- 29016067 TI - Isonicotinic Acid Hydrazide in the Treatment of Lupus Vulgaris. PMID- 29016068 TI - The Presidency General Hospital Calcutta. PMID- 29016069 TI - Etiology of Acute Retention of Urine in Elderly Individuals Based on Cases. PMID- 29016070 TI - Role of Non-Political Agencies in Easing World Tensions Stressed by Prime Minister Nehru before WHO Regional Committee. PMID- 29016071 TI - Some Aspects of Family Planning Rajkumari Amrit Kaur's Broadcast. PMID- 29016072 TI - Work for Welfare of the Blind. PMID- 29016073 TI - Medical News. PMID- 29016074 TI - Current Topics. PMID- 29016075 TI - Notes on Some Remedies. XIX. Drugs in Anaemias. Part III. PMID- 29016076 TI - Active monitoring vs treatment for localised prostate cancer. PMID- 29016077 TI - Just Do It. PMID- 29016079 TI - Looking the Other Way. PMID- 29016083 TI - Microbes Evolved to Colonize Different Parts of Human Body PMID- 29016084 TI - Research Shows Trends for Dental Care in ED PMID- 29016085 TI - Prompt diagnosis of AF lowers risk of complications. AB - Atrial fibrillation (AF) is the most common sustained heart rhythm disturbance. Estimates suggest an AF prevalence as high as 2% in adults with an exponential relationship with increasing age. AF is associated with a 1.5-2 fold increased risk of death, and is responsible for 20-30% of all strokes. There are strong relationships with hypertension, heart failure, coronary artery disease (CAD), valvular heart disease, obesity, diabetes mellitus, COPD, obstructive sleep apnoea, chronic kidney disease and lifestyle factors such as increased alcohol intake, strenuous physical exercise and smoking. Assessment should include physical examination (blood pressure measurement, cardiovascular examination to look for valvular heart disease or heart failure and lung examination looking for signs of lung disease or pulmonary oedema), blood tests, including urea and electrolytes, liver function tests, full blood count, blood glucose and thyroid function tests. Signs of haemodynamic instability or severe symptoms (unstable angina, evolving TIA or stroke, heart failure or severe bradycardia) should be promptly identified and lead to urgent referral to specialist care. The CHA2DS2 VASc risk stratification score is recommended to assess stroke risk in patients with AF. Oral anticoagulation should be offered to those with a CHA2DS2-VASc score >= 2, and considered for men with a score of 1 and women with a score of 2. Risk of severe bleeding with warfarin should also be assessed using the HAS-BLED score. PMID- 29016087 TI - Link Confirmed Between Drug Use and Poor Dental Health PMID- 29016086 TI - Oral Health Key to Understanding Humanity's Past PMID- 29016089 TI - Mouse Teeth Provide Insights Into Tissue Regeneration PMID- 29016088 TI - Early recognition vital in acute coronary syndrome. AB - Acute coronary syndrome (ACS) includes both ST (STEMI) and non ST elevation (NSTEMI) MI, and unstable angina. The common pathological process underlying MI involves thrombus formation on top of a complex atheromatous plaque, resulting in partial or complete occlusion of the coronary artery and myocyte necrosis. Unstable angina is defined as ischaemia at rest or on minimal exertion in the absence of myocyte necrosis. Patients with ACS typically present with chest pain; classically central chest pain that radiates to the left arm. Additional symptoms include dyspnoea, nausea, sweating and syncope. Patients can present atypically with gastric symptoms. These are often more common in patients with diabetes, women and the elderly. Clinical risk factors should also be considered when diagnosing ACS as this increases the likelihood of a positive diagnosis. Risk factors include: being older, male, a current or former smoker, known coronary artery disease (CAD), peripheral vascular disease, diabetes, hypercholesterolaemia, renal failure and a family history of CAD.A 12-lead ECG should be performed if possible within 10 minutes of presentation or ideally at first contact with the emergency services. Troponin should be measured on admission and at 12 hours. Ideally high sensitivity troponin should be measured as this has higher negative predictive values for MI and enables earlier detection of acute MI. A chest x-ray should also be carried out to assess for thoracic pathologies. An echocardiogram should be performed during admission in all patients with NSTEMI and STEMI. PMID- 29016091 TI - Peptide Histatin 1 May Help Implants Integrate PMID- 29016090 TI - Managing actinic keratosis in primary care. AB - Actinic, or solar, keratosis is caused by chronic ultraviolet-induced damage to the epidermis. In the UK, 15-23% of individuals have actinic keratosis lesions. Risk factors include: advanced age; male gender; cumulative sun exposure or phototherapy; Fitzpatrick skin phototypes I-II; long-term immuno-suppression and genetic syndromes e.g. xeroderma pigmentosum and albinism. Actinic keratoses are regarded by some authorities as premalignant lesions that may transform into invasive squamous cell carcinoma (SCC) and by others as in situ SCC that may progress to an invasive stage. The risk of malignant change appears low; up to 0.5% per lesion per year. Up to 20-30% of lesions may spontaneously regress but in the absence of any reliable prognostic clinical indicators regarding malignant potential active treatment is considered appropriate. Actinic keratosis lesions may present as discrete hyperkeratotic papules, cutaneous horns, or more subtle flat lesions on sun-exposed areas of skin. The single most helpful diagnostic sign is an irregularly roughened surface texture: a sandpaper-like feel almost always indicates actinic damage. Dermatoscopy can be helpful in excluding signs of basal cell carcinoma when actinic keratosis is non-keratotic. It is always important to consider the possibility of SCC. The principal indication for referral to secondary care is the possibility of cutaneous malignancy. However, widespread and severe actinic damage in patients who are immunosuppressed is also a reason for referral. PMID- 29016092 TI - Sports Dentistry-More Than Mouthguards. PMID- 29016093 TI - Current Concepts in Concussion: A Review. PMID- 29016101 TI - Molecular Orbital Principles of Oxygen-Redox Battery Electrodes. AB - Lithium-ion batteries are key energy-storage devices for a sustainable society. The most widely used positive electrode materials are LiMO2 (M: transition metal), in which a redox reaction of M occurs in association with Li+ (de)intercalation. Recent developments of Li-excess transition-metal oxides, which deliver a large capacity of more than 200 mAh/g using an extra redox reaction of oxygen, introduce new possibilities for designing higher energy density lithium-ion batteries. For better engineering using this fascinating new chemistry, it is necessary to achieve a full understanding of the reaction mechanism by gaining knowledge on the chemical state of oxygen. In this review, a summary of the recent advances in oxygen-redox battery electrodes is provided, followed by a systematic demonstration of the overall electronic structures based on molecular orbitals with a focus on the local coordination environment around oxygen. We show that a pi-type molecular orbital plays an important role in stabilizing the oxidized oxygen that emerges upon the charging process. Molecular orbital principles are convenient for an atomic-level understanding of how reversible oxygen-redox reactions occur in bulk, providing a solid foundation toward improved oxygen-redox positive electrode materials for high energy-density batteries. PMID- 29016100 TI - Rapid Diffusion and Nanosegregation of Hydrogen in Magnesium Alloys from Exposure to Water. AB - Hydrogen gas is formed when Mg corrodes in water; however, the manner and extent to which the hydrogen may also enter the Mg metal is poorly understood. Such knowledge is critical as stress corrosion cracking (SCC)/embrittlement phenomena limit many otherwise promising structural and functional uses of Mg. Here, we report via D2O/D isotopic tracer and H2O exposures with characterization by secondary ion mass spectrometry, inelastic neutron scattering vibrational spectrometry, electron microscopy, and atom probe tomography techniques direct evidence that hydrogen rapidly penetrated tens of micrometers into Mg metal after only 4 h of exposure to water at room temperature. Further, technologically important microalloying additions of <1 wt % Zr and Nd used to improve the manufacturability and mechanical properties of Mg significantly increased the extent of hydrogen ingress, whereas Al additions in the 2-3 wt % range did not. Segregation of hydrogen species was observed at regions of high Mg/Zr/Nd nanoprecipitate density and at Mg(Zr) metastable solid solution microstructural features. We also report evidence that this ingressed hydrogen was unexpectedly present in the alloy as nanoconfined, molecular H2. These new insights provide a basis for strategies to design Mg alloys to resist SCC in aqueous environments as well as potentially impact functional uses such as hydrogen storage where increased hydrogen uptake is desired. PMID- 29016102 TI - Chip-Based Multicapillary Column with Maximal Interconnectivity to Combine Maximum Efficiency and Maximum Loadability. AB - On the basis of our previous work on the design of pillar array columns for liquid chromatography, we report on a new pillar array design for high efficiency, high volumetric loadability gas chromatography columns. The proposed pillar array configuration leads to a column design which can either be considered as a packed bed with perfectly ordered and uniform flow paths or as multicapillary columns (8 parallel tracks) with a maximal interconnectivity between the flow paths to avoid the so-called polydispersity effect (dispersion arising from the inevitable differences in migration velocity between parallel flow paths). Despite our relative inexperience with column coating, and most probably (not supported by data) suffering from the same problem of stationary phase pooling in the right-angled corners of the flow-through channels as other chip-based GC devices, the efficiencies obtained in a L = 70 cm long and 75 MUm deep and 6.195 mm wide chip for, respectively, quasi-unretained and retained components (k = 7) went up to N = 60 000 and 12 500 under isothermal conditions using H2 as carrier gas and a downstream restriction. Under programmed temperature conditions (Ti = 80 degrees C, Tf = 175 degrees C at 30 degrees C/min, and a H2 flow of 0.4 mL/min), a peak capacity of 170 was obtained in 3.6 min. For retained compounds, the optimal flow rate is found to be on the order of 0.4 mL/min, achieved at an operating pressure of 2.3 bar. Intrinsically, the column combines the efficiency of a 75 MUm capillary with the volumetric loadability of a 240 MUm capillary. PMID- 29016104 TI - diDO-IPTL: A Peptide-Labeling Strategy for Precision Quantitative Proteomics. AB - We present an analytical strategy, dimethylation-deuteration and oxygen-exchange IPTL (diDO-IPTL), for high-precision, broad-coverage quantitative proteomics. The diDO-IPTL approach combines two advances in isobaric peptide terminal labeling (IPTL) methodology: first, a one-pot chemical labeling strategy for attaching isotopic tags to both the N- and C-termini of tryptic peptides, and second, a search engine (based on the Morpheus algorithm) optimized for identification and quantification of twinned peaks from peptide fragment ions in MS2 spectra. The diDO-IPTL labeling chemistry uses only high-purity, relatively inexpensive isotopic reagents (18O water and deuterated formaldehyde) and requires no postlabeling cleanup or isotopic impurity corrections. This strategy produces proteome-scale relative quantification results with high accuracy and precision, suitable for the detection of small protein abundance variations between complex biological samples. In a two-proteome mixture experiment, diDO-IPTL quantification discriminates 1.5-fold changes in abundance of over 1000 proteins with 88% accuracy. The diDO-IPTL methodology is a high-precision, economical approach to quantitative proteomics that is applicable to a wide variety of sample types. PMID- 29016103 TI - Comparison of Enrichment Methods for Intact N- and O-Linked Glycopeptides Using Strong Anion Exchange and Hydrophilic Interaction Liquid Chromatography. AB - Heterogeneity of protein glycosylation poses great challenges for analysis that is key to understand structure and function of glycoproteins. Resolving this conundrum requires efficient and specific enrichment of intact glycopeptides for identification and quantitation. To this end, hydrophilic interaction chromatography (HILIC) has been commonly used to enrich intact N- and O-linked glycopeptides. However, its effectiveness to enrich isobarically labeled glycopeptides remains unclear. Here, we studied three different enrichment methods for enrichment of N- and O-linked glycopeptides. It was found that removal of N-glycans prior to enrichment of O-linked glycopeptides by HILIC improved identification of O-linked glycopeptides by mass spectrometry. We also compared the enrichment of intact N- and O-linked glycopeptides using other chromatography methods and found that using cartridges containing materials for strong anion exchange (SAX) chromatography increased yield and identification of N- and O-linked glycopeptides. The enrichment of O-linked glycopeptides was further improved when a Retain AX cartridge (RAX) was used. In particular, isobaric tag labeled glycopeptides after C18 desalting could be readily enriched by SAX and RAX cartridges but not by HILIC to enable quantitative glycoproteomics. It is anticipated that the use of SAX and RAX cartridges will facilitate broad applications of identifications and quantitation of glycoproteins. PMID- 29016105 TI - Aggregation-Induced Emission Luminogen with Deep-Red Emission for Through-Skull Three-Photon Fluorescence Imaging of Mouse. AB - Imaging the brain with high integrity is of great importance to neuroscience and related applications. X-ray computed tomography (CT) and magnetic resonance imaging (MRI) are two clinically used modalities for deep-penetration brain imaging. However, their spatial resolution is quite limited. Two-photon fluorescence microscopic (2PFM) imaging with its femtosecond (fs) excitation wavelength in the traditional near-infrared (NIR) region (700-1000 nm) is able to realize deep-tissue and high-resolution brain imaging. However, it requires craniotomy and cranial window or skull-thinning techniques due to photon scattering of the excitation light. Herein, based on a type of aggregation induced emission luminogen (AIEgen) DCDPP-2TPA with a large three-photon absorption (3PA) cross section at 1550 nm and deep-red emission, we realized through-skull three-photon fluorescence microscopic (3PFM) imaging of mouse cerebral vasculature without craniotomy and skull-thinning. Reduced photon scattering of a 1550 nm fs excitation laser allowed it to effectively penetrate the skull and tightly focus onto DCDPP-2TPA nanoparticles (NPs) in the cerebral vasculature, generating bright three-photon fluorescence (3PF) signals. In vivo 3PF images of the cerebral vasculature at various vertical depths were obtained, and a vivid 3D reconstruction of the vascular architecture beneath the skull was built. As deep as 300 MUm beneath the skull, small blood vessels of 2.4 MUm could still be recognized. PMID- 29016106 TI - Characterizations of the Interactions between Escherichia coli Periplasmic Chaperone HdeA and Its Native Substrates during Acid Stress. AB - The bacterial acid-resistant chaperone HdeA is a "conditionally disordered" protein that functions at low pH when it undergoes a transition from a well folded dimer to an unfolded monomer. The dimer dissociation and unfolding processes result in exposure of hydrophobic surfaces that allows binding to a broad range of client proteins. To fully elucidate the chaperone mechanism of HdeA, it is crucial to understand how the activated HdeA interacts with its native substrates during acid stress. Herein, we present a nuclear magnetic resonance study of the pH-dependent HdeA-substrate interactions. Our results show that the activation of HdeA is not only induced by acidification but also regulated by the presence of unfolded substrates. The variable extent of unfolding of substrates differentially regulates the HdeA-substrate interaction, and the binding further affects the HdeA conformation. Finally, we show that HdeA binds its substrates heterogeneously, and the "amphiphilic" model for HdeA substrate interaction is discussed. PMID- 29016108 TI - Vanadium Redox Flow Batteries Using meta-Polybenzimidazole-Based Membranes of Different Thicknesses. AB - 15, 25, and 35 MUm thick meta-polybenzimidazole (PBI) membranes are doped with H2SO4 and tested in a vanadium redox flow battery (VRFB). Their performances are compared with those of Nafion membranes. Immersed in 2 M H2SO4, PBI absorbs about 2 mol of H2SO4 per mole of repeat unit. This results in low conductivity and low voltage efficiency (VE). In ex-situ tests, meta-PBI shows a negligible crossover of V3+ and V4+ ions, much lower than that of Nafion. This is due to electrostatic repulsive forces between vanadium cations and positively charged protonated PBI backbones, and the molecular sieving effect of PBI's nanosized pores. It turns out that charge efficiency (CE) of VRFBs using meta-PBI-based membranes is unaffected by or slightly increases with decreasing membrane thickness. Thick meta-PBI membranes require about 100 mV larger potentials to achieve the same charging current as thin meta-PBI membranes. This additional potential may increase side reactions or enable more vanadium ions to overcome the electrostatic energy barrier and to enter the membrane. On this basis, H2SO4 doped meta-PBI membranes should be thin to achieve high VE and CE. The energy efficiency of 15 MUm thick PBI reaches 92%, exceeding that of Nafion 212 and 117 (N212 and N117) at 40 mA cm-2. PMID- 29016107 TI - Continuous Elution Proteoform Identification of Myelin Basic Protein by Superficially Porous Reversed-Phase Liquid Chromatography and Fourier Transform Mass Spectrometry. AB - Myelin basic protein (MBP) plays an important structural and functional role in the neuronal myelin sheath. Translated MBP exhibits extreme microheterogeneity with numerous alternative splice variants (ASVs) and post-translational modifications (PTMs) reportedly tied to central nervous system maturation, myelin stability, and the pathobiology of various de- and dys-myelinating disorders. Conventional bioanalytical tools cannot efficiently examine ASV and PTM events simultaneously, which limits understanding of the role of MBP microheterogeneity in human physiology and disease. To address this need, we report on a top-down proteomics pipeline that combines superficially porous reversed-phase liquid chromatography (SPLC), Fourier transform mass spectrometry (FTMS), data independent acquisition (DIA) with nozzle-skimmer dissociation (NSD), and aligned data processing resources to rapidly characterize abundant MBP proteoforms within murine tissue. The three-tier proteoform identification and characterization workflow resolved four known MBP ASVs and hundreds of differentially modified states from a single 90 min SPLC-FTMS run on ~0.5 MUg of material. This included 323 proteoforms for the 14.1 kDa ASV alone. We also identified two novel ASVs from an alternative transcriptional start site (ATSS) of the MBP gene as well as a never before characterized S-acylation event linking palmitic acid, oleic acid, and stearic acid at C78 of the 17.125 kDa ASV. PMID- 29016109 TI - Electron-Deficient Near-Infrared Pt(II) and Pd(II) Benzoporphyrins with Dual Phosphorescence and Unusually Efficient Thermally Activated Delayed Fluorescence: First Demonstration of Simultaneous Oxygen and Temperature Sensing with a Single Emitter. AB - We report a family of Pt and Pd benzoporphyrin dyes with versatile photophysical properties and easy access from cheap and abundant chemicals. Attaching 4 or 8 alkylsulfone groups onto a meso-tetraphenyltetrabenzoporphyrin (TPTBP) macrocylcle renders the dyes highly soluble in organic solvents, photostable, and electron-deficient with the redox potential raised up to 0.65 V versus the parent porphyrin. The new dyes intensively absorb in the blue (Soret band, 440-480 nm) and in the red (Q-band, 620-650 nm) parts of the electromagnetic spectrum and show bright phosphorescence at room-temperature in the NIR with quantum yields up to 30% in solution. The small singlet-triplet energy gap yields unusually efficient thermally activated delayed fluorescence (TADF) at elevated temperatures in solution and in polymeric matrices with quantum yields as high as 27% at 120 degrees C, which is remarkable for benzoporphyrins. Apart from oxygen sensing, these properties enable unprecedented simultaneous, self-referenced oxygen and temperature sensing with a single indicator dye: whereas oxygen can be determined either via the decay time of phosphorescence or TADF, the temperature is accessed via the ratio of the two emissions. Moreover, the dyes are efficient sensitizers for triplet-triplet annihilation (TTA)-based upconversion making possible longer sensitization wavelength than the conventional benzoporphyrin complexes. The Pt-octa-sulfone dye also features interesting semireversible transformation in basic media, which generates new NIR absorbing species. PMID- 29016110 TI - Bacterial Cellulose Ionogels as Chemosensory Supports. AB - To fully leverage the advantages of ionic liquids for many applications, it is necessary to immobilize or encapsulate the fluids within an inert, robust, quasi solid-state format that does not disrupt their many desirable, inherent features. The formation of ionogels represents a promising approach; however, many earlier approaches suffer from solvent/matrix incompatibility, optical opacity, embrittlement, matrix-limited thermal stability, and/or inadequate ionic liquid loading. We offer a solution to these limitations by demonstrating a straightforward and effective strategy toward flexible and durable ionogels comprising bacterial cellulose supports hosting in excess of 99% ionic liquid by total weight. Termed bacterial cellulose ionogels (BCIGs), these gels are prepared using a facile solvent-exchange process equally amenable to water miscible and water-immiscible ionic liquids. A suite of characterization tools were used to study the preliminary (thermo)physical and structural properties of BCIGs, including no-deuterium nuclear magnetic resonance, differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, and X-ray diffraction. Our analyses reveal that the weblike structure and high crystallinity of the host bacterial cellulose microfibrils are retained within the BCIG. Notably, not only can BCIGs be tailored in terms of shape, thickness, and choice of ionic liquid, they can also be designed to host virtually any desired active, functional species, including fluorescent probes, nanoparticles (e.g., quantum dots, carbon nanotubes), and gas-capture reagents. In this paper, we also present results for fluorescent designer BCIG chemosensor films responsive to ammonia or hydrogen sulfide vapors on the basis of incorporating selective fluorogenic probes within the ionogels. Additionally, a thermometric BCIG hosting the excimer-forming fluorophore 1,3-bis(1-pyrenyl)propane was devised which exhibited a ratiometric (two-color) fluorescence output that responded precisely to changes in local temperature. The ionogel approach introduced here is simple and has broad generality, offering intriguing potential in (bio)analytical sensing, catalysis, membrane separations, electrochemistry, energy storage devices, and flexible electronics and displays. PMID- 29016112 TI - Liquid Structure with Nano-Heterogeneity Promotes Cationic Transport in Concentrated Electrolytes. AB - Using molecular dynamics simulations, small-angle neutron scattering, and a variety of spectroscopic techniques, we evaluated the ion solvation and transport behaviors in aqueous electrolytes containing bis(trifluoromethanesulfonyl)imide. We discovered that, at high salt concentrations (from 10 to 21 mol/kg), a disproportion of cation solvation occurs, leading to a liquid structure of heterogeneous domains with a characteristic length scale of 1 to 2 nm. This unusual nano-heterogeneity effectively decouples cations from the Coulombic traps of anions and provides a 3D percolating lithium-water network, via which 40% of the lithium cations are liberated for fast ion transport even in concentration ranges traditionally considered too viscous. Due to such percolation networks, superconcentrated aqueous electrolytes are characterized by a high lithium transference number (0.73), which is key to supporting an assortment of battery chemistries at high rate. The in-depth understanding of this transport mechanism establishes guiding principles to the tailored design of future superconcentrated electrolyte systems. PMID- 29016113 TI - Resolution of the Confusion in the Assignments of Configuration for the Ciliatamides, Acylated Dipeptides from Marine Sponges. AB - Direct comparison of authentic ciliatamide A with four synthetic isomers (1-4) by means of NMR and chiral-phase HPLC revealed that ciliatamide A possesses the 12R (d-N-MePhe residue) and 22S (l-Lys residue) configurations, which were not identical with either our previous assignment or those proposed by others through total synthesis. The absolute configuration of the methionine sulfoxide residue in ciliatamide D was also revised to be d. PMID- 29016111 TI - Crystallinity of Double-Stranded RNA-Antimicrobial Peptide Complexes Modulates Toll-Like Receptor 3-Mediated Inflammation. AB - Double-stranded RNA (dsRNA) induces production of pro-inflammatory cytokines in normal human epidermal keratinocytes (NHEK) by specific binding to endosomal Toll like receptor-3 (TLR3). Recently, it has been shown that hyperactivation of TLR3 in psoriatic keratinocytes by dsRNA can occur in the presence of human antimicrobial peptide (AMP) LL37. Here, we combine synchrotron X-ray scattering, microscopy, computer simulations, and measurements of NHEK cytokine production to elucidate a previously unanticipated form of specific molecular pattern recognition. LL37 and similar alpha-helical AMPs can form pro-inflammatory nanocrystalline complexes with dsRNA that are recognized by TLR3 differently than dsRNA alone. dsRNA complexes that activate IL-6 production in NHEK and those that do not are both able to enter cells and co-localize with TLR3. However, the crystallinity of these AMP-dsRNA complexes, specifically the geometric spacing between parallel dsRNA and the repeat number of ordered dsRNA, strongly influences the level of TLR3 activation. Crystalline complexes that present dsRNA at a spacing that matches with the steric size of TLR3 can recruit and engage multiple TLR3 receptors, driving receptor clustering and immune amplification, whereas crystalline complexes that exhibit poor steric matching do not. Reverse transcription quantitative PCR of IL-6 during siRNA knockdown of TLR3 confirms that cytokine production is due to TLR3: High levels of IL-6 transcription are observed for sterically matched complexes without TLR3 knockdown, whereas such activity is abrogated with TLR3 knockdown. PMID- 29016114 TI - Bimetallic Trifluoroacetates as Single-Source Precursors for Alkali-Manganese Fluoroperovskites. AB - Alkali-manganese(II) trifluoroacetates were synthesized, and their potential as single-source precursors for the solid-state and solution-phase synthesis of AMnF3 fluoroperovskites (A = Na, K, Rb, Cs) was demonstrated. Crystals of Na2Mn2(tfa)6(tfaH), K2Mn2(tfa)6(tfaH)2.H2O, Rb2Mn2(tfa)6.H2O, and CsMn(tfa)3 (tfa = trifluoroacetato) were grown via solvent evaporation and their crystal structures solved using single-crystal X-ray diffraction (XRD). Chemical purity was confirmed using thermal analyses (TGA/DTA) and Rietveld analysis of powder XRD patterns. Thermal decomposition of Na2Mn2(tfa)6(tfaH), K2Mn2(tfa)6(tfaH)2.H2O, Rb2Mn2(tfa)6.H2O, and CsMn(tfa)3 in both the solid state and solution phase yielded crystalline, single-phase NaMnF3, KMnF3, RbMnF3, and CsMnF3 fluoroperovskites, respectively. Nanocrystals (<100 nm) and submicrocrystals (<500 nm) were obtained in a mixture of high-boiling-point organic solvents. Crystal structures of bimetallic trifluoroacetates displayed a variety of building blocks, coordination environments of the alkali atoms, and coordination modes of the trifluoroacetato ligand. Alkali-fluorine interactions ranging from chemical bonds to short contacts were observed throughout the series. The coordination flexibility of the trifluoroacetato ligand was attributed to the ability of the -CF3 groups to interact with alkali atoms over a broad range of distances. The synthetic approach described in this investigation provides a starting point to expand the library of fluorinated single-source precursors suitable for solution-phase routes to mixed-metal fluorides. PMID- 29016115 TI - Photoreactions of Phenylborylene with Dinitrogen and Carbon Monoxide. AB - Formal removal of two bonding partners from boranes, BR3, yields borylenes, RB, which have been inferred as reactive intermediates in a number of reactions. Phenylborylene (R = C6H5; 1) is accessible from phenyldiazidoborane by photochemical extrusion of dinitrogen under matrix isolation conditions. Concomitantly, the nitrene PhNBN is formed via phenyl rearrangement. Here we used a combination of UV/vis, IR, and ESR spectroscopy under cryogenic matrix isolation conditions to investigate the properties and reactivity of phenylborylene. We detected an absorption band of phenylborylene at 375 nm (S0 -> S2) and tentatively assigned the S0 -> S1 transition to a very weak band at 518 nm. We also show for the first time that an electrophilic borylene such as 1 can react with N2 reversibly and with CO irreversibly under photochemical conditions. The corresponding photoproducts PhBNN and PhBCO have triplet electronic ground states. Their small E values are in agreement with the linear arrangements Ph-B-N N and Ph-B-C-O obtained by density functional theory computations. The D values decrease in the series PhNBN > PhBNN > PhBCO and approach the value for phenylcarbene (PhCH). Indeed, the boron center in PhBCO is isoelectronic with the carbene center in PhCH. The compounds are the first examples of boron analogues of diazoalkanes (R2CNN) and ketenes (R2CCO), and their formation may serve as a demonstration of the high reactivity of phenylborylene. PMID- 29016116 TI - Sugar Cane-Converted Graphene-like Material for the Superhigh Adsorption of Organic Pollutants from Water via Coassembly Mechanisms. AB - A sugar cane-converted graphene-like material (FZS900) was fabricated by carbonization and activation. The material exhibited abundant micropores, water stable turbostratic single-layer graphene nanosheets, and a high BET-N2 surface area (2280 m2 g-1). The adsorption capacities of FZS900 toward naphthalene, phenanthrene, and 1-naphthol were 615.8, 431.2, and 2040 mg g-1, respectively, which are much higher than those of previously reported materials. The nonpolar aromatic molecules induced the turbostratic graphene nanosheets to agglomerate in an orderly manner, forming 2-11 graphene layer nanoloops, while polar aromatic compounds induced high dispersion or aggregation of the graphene nanosheets. This phase conversion of the nanosized materials after sorption occurred through coassembly of the aromatic molecules and the single-layer graphene nanosheets via large-area pi-pi interactions. An adsorption-induced partition mechanism was further proposed to explain the nanosize effect and nanoscale sorption sites observed. This study indicates that commonly available biomass can be converted to graphene-like material with superhigh sorption ability in order to remove pollutants from the environment via nanosize effects and a coassembly mechanism. PMID- 29016117 TI - Formation of Polyphenol-Denatured Protein Flocs in Alcohol Beverages Sweetened with Refined Cane Sugars. AB - The sporadic appearance of floc from refined, white cane sugars in alcohol beverages remains a technical problem for both beverage manufacturers and sugar refiners. Cane invert sugars mixed with 60% pure alcohol and water increased light scattering by up to ~1000-fold. Insoluble and soluble starch, fat, inorganic ash, oligosaccharides, Brix, and pH were not involved in the prevailing floc-formation mechanism. Strong polynomial correlations existed between the haze floc and indicator values (IVs) (color at 420 nm pH 9.0/color at pH 4.0-an indirect measure of polyphenolic and flavonoid colorants) (R2 = 0.815) and protein (R2 = 0.819) content of the invert sugars. Ethanol-induced denaturation of the protein exposed hydrophobic polyphenol-binding sites that were further exposed when heated to 80 degrees C. A tentative mechanism for floc formation was advanced by molecular probing with a haze (floc) active protein and polyphenol as well as polar, nonpolar, and ionic solvents. PMID- 29016118 TI - Plasmolysis-Inspired Nanoengineering of Functional Yolk-Shell Microspheres with Magnetic Core and Mesoporous Silica Shell. AB - Yolk-shell nanomaterials with a rattle-like structure have been considered ideal carriers and nanoreactors. Traditional methods to constructing yolk-shell nanostructures mainly rely on multistep sacrificial template strategy. In this study, a facile and effective plasmolysis-inspired nanoengineering strategy is developed to controllably fabricate yolk-shell magnetic mesoporous silica microspheres via the swelling-shrinkage of resorcinol-formaldehyde (RF) upon soaking in or removal of n-hexane. Using Fe3O4@RF microspheres as seeds, surfactant-silica mesostructured composite is deposited on the swelled seeds through the multicomponent interface coassembly, followed by solvent extraction to remove surfactant and simultaneously induce shrinkage of RF shell. The obtained yolk-shell microspheres (Fe3O4@RF@void@mSiO2) possess a high magnetization of 40.3 emu/g, high surface area (439 m2/g), radially aligned mesopores (5.4 nm) in the outer shell, tunable middle hollow space (472-638 nm in diameter), and a superparamagnetic core. This simple method allows a simultaneous encapsulation of Au nanoparticles into the hollow space during synthesis, and it leads to spherical Fe3O4@RF@void-Au@mSiO2 magnetic nanocatalysts, which show excellent catalysis efficiency for hydrogenation of 4-nitrophenol by NaBH4 with a high conversion rate (98%) and magnetic recycling stability. PMID- 29016119 TI - 9-Deazapurines as Broad-Spectrum Inhibitors of the ABC Transport Proteins P Glycoprotein, Multidrug Resistance-Associated Protein 1, and Breast Cancer Resistance Protein. AB - P-Glycoprotein (P-gp, ABCB1), multidrug resistance-associated protein 1 (MRP1, ABCC1), and breast cancer resistance protein (BCRP, ABCG2) are the three major ABC transport proteins conferring resistance to many structurally diverse anticancer agents, leading to the phenomenon called multidrug resistance (MDR). Much effort has been put into the development of clinically useful compounds to reverse MDR. Broad-spectrum inhibitors of ABC transport proteins can be of great use in cancers that simultaneously coexpress two or three transporters. In this work, we continued our effort to generate new, potent, nontoxic, and multiply effective inhibitors of the three major ABC transporters. The best compound was active in a very low micromolar concentration range against all three transporters and restored sensitivity toward daunorubicin (P-gp and MRP1) and SN 38 (BCRP) in A2780/ADR (P-gp), H69AR (MRP1), and MDCK II BCRP (BCRP) cells. Additionally, the compound is a noncompetitive inhibitor of daunorubicin (MRP1), calcein AM (P-gp), and pheophorbide A (BCRP) transport. PMID- 29016120 TI - Evaluation of Pyridaben Residues on Fruit Surfaces and Their Stability by a Novel On-Line Dual-Frequency Ultrasonic Device and Chemiluminescence Detection. AB - In this paper, we first report the development of a highly sensitive and economical method for accurate analysis of pyridaben residues on fruits based on dual-frequency ultrasonic treatment (DFUT) and flow injection chemiluminescence (CL) detection. The DFUT device is made by integrating an ultrasonic bath with an ultrasonic probe. Two quartz glass coils (QGC) with different structures have been designed and applied to evaluate the function of DFUT in the detection process. Recorded data showed that DFUT is an effective method for improving the pyridaben CL signal. The signal of pyridaben in response to DFUT is 2.0-3.3 times stronger than the response to only the ultrasonic probe at 20 kHz or the ultrasonic bath at 40 kHz. In addition, the response obtained from the concentric circle QGC is 2.1 times stronger than the response to the spiral tube QGC. Under the optimized condition, the proposed method has advantages, such as a wide linear range (0.8-100.0 MUg L-1), a high sensitivity (limit of detection of 0.085 MUg L-1), and good stability (RSDs <= 4.7% in the linear range) for pyridaben determination. We apply this method to monitor the residue pyridaben on some fruits. The data show that the maximum amounts of the residue on fruit surfaces after soaking in water (50 mg L-1, 5 min) are 0.583 mg kg-1 (apple), 0.794 mg kg 1 (orange), and 0.351 mg kg-1 (pear). However, the concentration of pyridaben in the presence of sunlight decreases rapidly, showing its poor light stability. PMID- 29016122 TI - Effects of Interaction between Cadmium (Cd) and Selenium (Se) on Grain Yield and Cd and Se Accumulation in a Hybrid Rice (Oryza sativa) System. AB - A pot experiment was conducted to investigate the interactive effects of cadmium (Cd) and selenium (Se) on their accumulation in three rice cultivars, which remains unclear. The results showed that Se reduced Cd-induced growth inhibition, and increased and decreased Se and Cd concentrations in brown rice, respectively. Cadmium concentrations in all tissues of the hybrid were similar to those in its male parent yet significantly lower than those in its female parent. Selenium reduced Cd accumulation in rice when Cd concentration exceeded 2.0 mg kg-1; however Se accumulation depended on the levels of Cd exposure. Finally, Cd had minimal effect on Se translocation within the three cultivars. We concluded that Cd concentration in brown rice is a heritable trait, making crossbreeding a feasible method for cultivating high-yield, low-Cd rice cultivars. Selenium effectively decreased the toxicity and accumulation of Cd, and Cd affected Se uptake but not translocation. PMID- 29016121 TI - Synthesis, Binding Mode, and Antihyperglycemic Activity of Potent and Selective (5-Imidazol-2-yl-4-phenylpyrimidin-2-yl)[2-(2-pyridylamino)ethyl]amine Inhibitors of Glycogen Synthase Kinase 3. AB - In an effort to identify new antidiabetic agents, we have discovered a novel family of (5-imidazol-2-yl-4-phenylpyrimidin-2-yl)[2-(2-pyridylamino)ethyl]amine analogues which are inhibitors of human glycogen synthase kinase 3 (GSK3). We developed efficient synthetic routes to explore a wide variety of substitution patterns and convergently access a diverse array of analogues. Compound 1 (CHIR 911, CT-99021, or CHIR-73911) emerged from an exploration of heterocycles at the C-5 position, phenyl groups at C-4, and a variety of differently substituted linker and aminopyridine moieties attached at the C-2 position. These compounds exhibited GSK3 IC50s in the low nanomolar range and excellent selectivity. They activate glycogen synthase in insulin receptor-expressing CHO-IR cells and primary rat hepatocytes. Evaluation of lead compounds 1 and 2 (CHIR-611 or CT 98014) in rodent models of type 2 diabetes revealed that single oral doses lowered hyperglycemia within 60 min, enhanced insulin-stimulated glucose transport, and improved glucose disposal without increasing insulin levels. PMID- 29016124 TI - Torsional Barriers to Rotation and Planarization in Heterocyclic Oligomers of Value in Organic Electronics. AB - In order to understand the conformational behavior of organic components in organic electronic devices, we have computed the torsional potentials for a library of thiophene-based heterodimers. The accuracy and efficiencies of computational methods for these organic materials were benchmarked for 11 common density functionals with three Pople basis sets against a Focal Point Analysis (FPA) on a model oligothiophene 2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b] thiophene (BTTT) system. This study establishes a set of general trends in regards to conformational preferences, as well as planarization and rotational barriers for a library comprised of common fragments found in organic materials. These gas phase structures are compared to experimental crystal structures to determine the effect of crystal packing on geometry. Finally, we analyze the structure of hole-transporting material DERDTS-TBDT and design a new oligomer likely to be planar in the solid state. PMID- 29016125 TI - Evaluation of the Factors Impacting the Accuracy of 13C NMR Chemical Shift Predictions using Density Functional Theory-The Advantage of Long-Range Corrected Functionals. AB - The various factors influencing the accuracy of 13C NMR calculations using density functional theory (DFT), including the basis set, exchange-correlation (XC) functional, and isotropic shielding calculation method, are evaluated. A wide selection of XC functionals (over 70) were considered, and it was found that long-range corrected functionals offer a significant improvement over the other classes of functionals. Based on a thorough study, it is recommended that for calculating NMR chemical shifts (delta) one should use the CSGT method, the COSMO solvation model, and the LC-TPSSTPSS exchange-correlation functional in conjunction with the cc-pVTZ basis set. A selection of problems in natural product identification are considered in light of the newly recommended level of theory. PMID- 29016126 TI - Exact Open Quantum System Dynamics Using the Hierarchy of Pure States (HOPS). AB - We show that the general and numerically exact Hierarchy of Pure States method (HOPS) is very well applicable to calculate the reduced dynamics of an open quantum system. In particular, we focus on environments with a sub-Ohmic spectral density (SD) resulting in an algebraic decay of the bath correlation function (BCF). The universal applicability of HOPS, reaching from weak to strong coupling for zero and nonzero temperature, is demonstrated by solving the spin-boson model for which we find perfect agreement with other methods, each one suitable for a special regime of parameters. The challenges arising in the strong coupling regime are not only reflected in the computational effort needed for the HOPS method to converge but also in the necessity for an importance sampling mechanism, accounted for by the nonlinear variant of HOPS. In order to include nonzero-temperature effects in the strong coupling regime we found that it is highly favorable for the HOPS method to use the zero-temperature BCF and include temperature via a stochastic Hermitian contribution to the system Hamiltonian. PMID- 29016123 TI - ProSelection: A Novel Algorithm to Select Proper Protein Structure Subsets for in Silico Target Identification and Drug Discovery Research. AB - Molecular docking is widely applied to computer-aided drug design and has become relatively mature in the recent decades. Application of docking in modeling varies from single lead compound optimization to large-scale virtual screening. The performance of molecular docking is highly dependent on the protein structures selected. It is especially challenging for large-scale target prediction research when multiple structures are available for a single target. Therefore, we have established ProSelection, a docking preferred-protein selection algorithm, in order to generate the proper structure subset(s). By the ProSelection algorithm, protein structures of "weak selectors" are filtered out whereas structures of "strong selectors" are kept. Specifically, the structure which has a good statistical performance of distinguishing active ligands from inactive ligands is defined as a strong selector. In this study, 249 protein structures of 14 autophagy-related targets are investigated. Surflex-dock was used as the docking engine to distinguish active and inactive compounds against these protein structures. Both t test and Mann-Whitney U test were used to distinguish the strong from the weak selectors based on the normality of the docking score distribution. The suggested docking score threshold for active ligands (SDA) was generated for each strong selector structure according to the receiver operating characteristic (ROC) curve. The performance of ProSelection was further validated by predicting the potential off-targets of 43 U.S. Federal Drug Administration approved small molecule antineoplastic drugs. Overall, ProSelection will accelerate the computational work in protein structure selection and could be a useful tool for molecular docking, target prediction, and protein-chemical database establishment research. PMID- 29016127 TI - Aluminum Induces Distinct Changes in the Metabolism of Reactive Oxygen and Nitrogen Species in the Roots of Two Wheat Genotypes with Different Aluminum Resistance. AB - Aluminum (Al) toxicity in acid soils is a primary factor limiting plant growth and crop yield worldwide. Considerable genotypic variation in resistance to Al toxicity has been observed in many crop species. In wheat (Triticum aestivum L.), Al phytotoxicity is a complex phenomenon involving multiple physiological mechanisms which are yet to be fully characterized. To elucidate the physiological and molecular basis of Al toxicity in wheat, we performed a detailed analysis of reactive oxygen species (ROS) and reactive nitrogen species (RNS) under Al stress in one Al-tolerant (Jian-864) and one Al-sensitive (Yang-5) genotype. We found Al induced a significant reduction in root growth with the magnitude of reduction always being greater in Yang-5 than in Jian-864. These reductions were accompanied by significant differences in changes in antioxidant enzymes and the nitric oxide (NO) metabolism in these two genotypes. In the Al sensitive genotype Yang-5, Al induced a significant increase in ROS, NO, peroxynitrite (ONOO-) and activities of NADPH oxidase, peroxidase, and S nitrosoglutathione reductase (GSNOR). A concomitant reduction in glutathione and increase in S-nitrosoglutathione contents was also observed in Yang-5. In contrast, the Al-tolerant genotype Jian-864 showed lower levels of lipid peroxidation, ROS and RNS accumulation, which was likely achieved through the adjustment of its antioxidant defense system to maintain redox state of the cell. These results indicate that Al stress affected redox state and NO metabolism and caused nitro-oxidative stress in wheat. Our findings suggest that these molecules could be useful parameters for evaluating physiological conditions in wheat and other crop species under adverse conditions. PMID- 29016128 TI - Acute Toxicity, Teratogenic, and Estrogenic Effects of Bisphenol A and Its Alternative Replacements Bisphenol S, Bisphenol F, and Bisphenol AF in Zebrafish Embryo-Larvae. AB - Bisphenol A (BPA), a chemical incorporated into plastics and resins, has estrogenic activity and is associated with adverse health effects in humans and wildlife. Similarly structured BPA analogues are widely used but far less is known about their potential toxicity or estrogenic activity in vivo. We undertook the first comprehensive analysis on the toxicity and teratogenic effects of the bisphenols BPA, BPS, BPF, and BPAF in zebrafish embryo-larvae and an assessment on their estrogenic mechanisms in an estrogen-responsive transgenic fish Tg(ERE:Gal4ff)(UAS:GFP). The rank order for toxicity was BPAF > BPA > BPF > BPS. Developmental deformities for larval exposures included cardiac edema, spinal malformation, and craniofacial deformities and there were distinct differences in the effects and potencies between the different bisphenol chemicals. These effects, however, occurred only at concentrations between 1.0 and 200 mg/L which exceed those in most environments. All bisphenol compounds induced estrogenic responses in Tg(ERE:Gal4ff)(UAS:GFP) zebrafish that were inhibited by coexposure with ICI 182 780, demonstrating an estrogen receptor dependent mechanism. Target tissues included the heart, liver, somite muscle, fins, and corpuscles of Stannius. The rank order for estrogenicity was BPAF > BPA = BPF > BPS. Bioconcentration factors were 4.5, 17.8, 5.3, and 0.067 for exposure concentrations of 1.0, 1.0, 0.10, and 50 mg/L for BPA, BPF, BPAF, and BPS, respectively. We thus show that these BPA alternatives induce similar toxic and estrogenic effects to BPA and that BPAF is more potent than BPA, further highlighting health concerns regarding the use of BPA alternatives. PMID- 29016129 TI - Estimating the Quantity of Wind and Solar Required To Displace Storage-Induced Emissions. AB - The variable and nondispatchable nature of wind and solar generation has been driving interest in energy storage as an enabling low-carbon technology that can help spur large-scale adoption of renewables. However, prior work has shown that adding energy storage alone for energy arbitrage in electricity systems across the U.S. routinely increases system emissions. While adding wind or solar reduces electricity system emissions, the emissions effect of both renewable generation and energy storage varies by location. In this work, we apply a marginal emissions approach to determine the net system CO2 emissions of colocated or electrically proximate wind/storage and solar/storage facilities across the U.S. and determine the amount of renewable energy required to offset the CO2 emissions resulting from operation of new energy storage. We find that it takes between 0.03 MW (Montana) and 4 MW (Michigan) of wind and between 0.25 MW (Alabama) and 17 MW (Michigan) of solar to offset the emissions from a 25 MW/100 MWh storage device, depending on location and operational mode. Systems with a realistic combination of renewables and storage will result in net emissions reductions compared with a grid without those systems, but the anticipated reductions are lower than a renewable-only addition. PMID- 29016130 TI - Comparative Human Toxicity Impact of Electricity Produced from Shale Gas and Coal. AB - The human toxicity impact (HTI) of electricity produced from shale gas is lower than the HTI of electricity produced from coal, with 90% confidence using a Monte Carlo Analysis. Two different impact assessment methods estimate the HTI of shale gas electricity to be 1-2 orders of magnitude less than the HTI of coal electricity (0.016-0.024 DALY/GWh versus 0.69-1.7 DALY/GWh). Further, an implausible shale gas scenario where all fracturing fluid and untreated produced water is discharged directly to surface water throughout the lifetime of a well also has a lower HTI than coal electricity. Particulate matter dominates the HTI for both systems, representing a much larger contribution to the overall toxicity burden than VOCs or any aquatic emission. Aquatic emissions can become larger contributors to the HTI when waste products are inadequately disposed or there are significant infrastructure or equipment failures. Large uncertainty and lack of exposure data prevent a full risk assessment; however, the results of this analysis provide a comparison of relative toxicity, which can be used to identify target areas for improvement and assess potential trade-offs with other environmental impacts. PMID- 29016131 TI - Metabolites from the Plant Endophytic Fungus Aspergillus sp. CPCC 400735 and Their Anti-HIV Activities. AB - Thirty-three metabolites including five phenalenone derivatives (1-5), seven cytochalasins (6-12), thirteen butenolides (13-25), and eight phenyl derivatives (26-33) were isolated from Aspergillus sp. CPCC 400735 cultured on rice. The structures of all compounds were elucidated by NMR, MS, and CD experiments, of which 1-5 (asperphenalenones A-E), 6 (aspochalasin R), and 13 (aspulvinone R) were identified as new compounds. Specifically, asperphenalenones A-E (1-5) represent an unusual structure composed of a linear diterpene derivative linked to a phenalenone derivative via a C-C bond. Compounds 1, 4, 10, and 26 exhibited anti-HIV activity with IC50 values of 4.5, 2.4, 9.2, and 6.6 MUM, respectively (lamivudine 0.1 MUM; efavirenz, 0.4 * 10-3 MUM). PMID- 29016132 TI - Toward Understanding Mcl-1 Promiscuous and Specific Binding Mode. AB - Mcl-1, which is an anti-apoptotic member of the Bcl-2 protein family, is overexpressed in various cancers and promotes the aberrant survival of tumor cells. To inhibit Mcl-1, and initiate apoptosis, an interaction between BH3-only proteins and Mcl-1 anti-apoptotic protein is necessary. These protein-protein interactions exhibit some selectivity: Mcl-1 binds specifically to Noxa, whereas Bim and Puma bind strongly to all anti-apoptotic proteins. Even if the three dimensional (3D) structures of several Mcl-1/BH3-only complexes have been solved, the BH3-only binding specificity to Mcl-1 is still not completely understood. In this study, molecular dynamics simulations were used to elucidate the molecular basis of the interactions with Mcl-1. Our results corroborate the importance of four conserved hydrophobic residues and a conserved aspartic acid on BH3-only as a common binding pattern. Furthermore, our results highlight the contribution of the fifth hydrophobic residue in the C-terminal part and a negatively charged patch in the N-terminal of BH3-only peptides as important for their fixation to Mcl-1. We hypothesize that this negatively charged patch will be an Mcl-1 specific binding pattern. PMID- 29016133 TI - Infrared Spectroscopy and X-ray Diffraction Characterization of Dimorphic Crystalline Structures of Polyethylenes with Halogens Placed at Equal Distance along the Backbone. AB - Polyethylenes with halogens placed on each and every 21st, 15th, or ninth backbone carbon display crystallization patterns enabled by the size of the halogen and by changing crystallization kinetics. The different structures have been identified from X-ray patterns combined with a detailed analysis of the infrared spectra of series containing F, Cl, or Br atoms that were either fast or isothermally crystallized from the melt. Under both crystallization modes, all specimens develop layered crystallites that accommodate 5-9 repeating units along the chain's axis. The size of the halogen and intermolecular staggering to maximize packing symmetry are responsible for striking structural differences observed between the series and between the two modes of crystallization. While the small size of the F atom causes a small perturbation to the crystal lattice and the orthorhombic structure is maintained for all members of the series either fast or isothermally crystallized, each Cl or Br-containing system presents dimorphism. Under fast crystallization, Cl and Br containing samples adopt the all-trans conformation (planar Form I), while in slowly crystallized samples gauche conformers set for bonds of the backbone carbons adjacent to the carbon with the halogen due to a close intermolecular staggering of halogens (herringbone Form II). In both forms the methylene sequence between halogens maintains the all-trans conformation. The structural details are extracted from the analysis of the C-halogen stretching region of the IR spectra, and from adherence to the n-alkane behavior of CH2 rocking, CH2 wagging, and C-C stretching progression modes. PMID- 29016134 TI - Palladium-Catalyzed Direct C(sp2)-H ortho-Arylation of Anilides Using 2 Aminophenylpyrazole as the Directing Group. AB - Palladium-catalyzed ortho-arylation of anilides was achieved using 2-aminophenyl 1H-pyrazole (2-APP) as a new directing group. Using Pd(OAc)2 as the catalyst and AgO as the promoter, mono- and diarylation of anilides were realized in up to 89% isolated yield. Further manipulation of the arylation product may be accomplished by a 2-step sequence involving an acidic hydrolysis of the methylated amide. More interestingly, in the presence of K2CO3, tandem C-C/C-N cyclization products were obtained for a couple of substrates. PMID- 29016135 TI - Charge Transport in Electronic-Ionic Composites. AB - Composite electrodes consisting of cathode particles and an ion-conducting phase can address the limited ion accessibility of the cathode in high-energy all-solid state lithium batteries. In this Letter, we discuss the microstructure conductivity relationship in an electronic-ionic composite with a focus on lithium ion conductivity. This study is the first step toward further understanding of electrochemical reactions in all solid multiphase systems. PMID- 29016136 TI - Specific Unbinding Forces Between Mutated Human P-Selectin Glycoprotein Ligand-1 and Viral Protein-1 Measured Using Force Spectroscopy. AB - Protein tyrosine sulfation (PTS) is a key modulator of extracellular protein protein interaction (PPI), which regulates principal biological processes. For example, the capsid protein VP1 of enterovirus 71 (EV71) specifically interacts with sulfated P-selectin glycoprotein ligand-1 (PSGL-1) to facilitate virus invasion. Currently available methods cannot be used to directly observe PTS induced PPI. In this study, atomic force microscopy was used to measure the interaction between sulfated or mutated PSGL-1 and VP1. We found that the binding strength increased by 6.7-fold following PTS treatment on PSGL-1 with a specific antisulfotyrosine antibody. Similar results were obtained when the antisulfotyrosine antibody was replaced with the VP1 protein of EV71; however, the interaction forces of VP1 were only approximately one-third of those of the antisulfotyrosine antibody. We also found that PTS on the tyrosine-51 residue of glutathione S-transferases fusion-PSGL-1 was mainly responsible for the PTS induced PPI. Our results contribute to the fundamental understanding of PPI regulated through PTS. PMID- 29016137 TI - Efficient Singlet Oxygen Generation in Metal Nanoclusters for Two-Photon Photodynamic Therapy Applications. AB - The generation of singlet oxygen (1O2) has been established as the principal mechanism of photodynamic therapy (PDT). Various dyes, metal nanoparticles, and clusters have been shown to sensitize 1O2. However, metal nanoclusters are even more promising candidates as photosensitizers for this purpose. By understanding the optical properties that lead to efficient 1O2 generation, one can fully realize their potential as PDT photosensitizers. Three different metal nanoclusters, Au25, Ag32, and Au144, are investigated for their 1O2 generation efficiency. The Au144 showed a 1O2 generation rate that is 2 orders of magnitude higher than that for Au25 and Ag32, and several orders of magnitude higher than nanoparticles (>5 nm) due to Au144's high absorption cross section-to-volume ratio. The effectiveness of PDT in live cells with nanoclusters was demonstrated by two-photon excitation compared to one-photon excitation. The implication of these results points toward new efficient two-photon 1O2 sensitizers for photodynamic therapy. PMID- 29016138 TI - Does Metal Ion Complexation Make Radical Clocks Run Fast? An Experimental Perspective. AB - The rate constant for the beta-scission of the cumyloxyl radical (kbeta) was measured in the presence of various added electrolytes in acetonitrile and DMSO solvent. The results show that in CH3CN, kbeta increases in the presence of added electrolyte, roughly paralleling the size of the cation: Li+ > Mg2+ ~ Na+ > nBu4N+ > no added electrolyte. As suggested by Bietti et al. earlier, this effect is attributable to stabilizing ion-dipole interactions in the transition state of the developing carbonyl group, a conclusion further amplified by MO calculations (gas phase) reported herein. Compared to the gas phase predictions, however, this effect is seriously attenuated in solution because complexation of the cation to the electrophilic alkoxyl radical (relative to the solvent, CH3CN) is very weak. Because the interaction of Li+ and Na+ is much stronger with DMSO than with CH3CN, addition of these ions has no effect on the rate of beta-scission. PMID- 29016139 TI - Aryltrimethylstannane Cation Radical Fragmentation Selectivities That Depend on Codonor: Evidence for Reactions from Heterodimer Cation Radicals. AB - The aryl/methyl fragmentation selectivities for the photooxidations of phenyltrimethylstannane and (4-methylphenyl)trimethylstannane by 1,2,4,5 tetracyanobenzene in acetonitrile were found to depend on the codonor used to generate the stannane cation radical intermediates. The aryl/methyl fragmentation selectivities for phenyltrimethylstannane and (4-methylphenyl)trimethylstannane varied by factors of 26 and 5.6, respectively, depending on the structures of the codonors. The fragmentation selectivities could be correlated with the oxidation potentials of the codonors and their steric bulk. The results can be interpreted by the intermediacy of heterodimer cation radicals formed between the stannane cation radicals and the neutral codonors, which thereby affect the fragmentation selectivities. PMID- 29016140 TI - Theoretical Study on the Kinetics of Thermal Decomposition of Guaiacol and Catechol. AB - The theoretical aspects of the development of a chemical kinetic model for guaiacol and catechol pyrolysis are presented to describe the pyrolysis behaviors of the individual lignin-derived components. The possible pyrolysis pathways involving both unimolecular and bimolecular decomposition were investigated by the potential energy surfaces (PES) calculated at CBS-QB3 level. The high pressure limiting rate constants of each elementary reaction step were evaluated based on the transition state theory (TST) to determine the dominant pyrolysis pathways. The kinetic analysis results predicted the most favorable catechol unimolecular decomposition pathways, where catechol isomerization to 2 hydroxycyclohexa-2,4-dien-1-one occurred via migration of the hydroxyl H atom, followed by decomposition into 1,3-cyclobutadiene, acetylene, and CO. In the case of the bimolecular reaction of catechol, a hydrogen radical is coupled to the carbon atom in the benzene ring, leading to the formation of phenol and a hydroxyl radical through dehydroxylation. On the other hand, guaiacol is likely to form catechol and phenol via the O-CH3 homolysis and coupling of a hydrogen radical to the carbon atom with the methoxyl group, respectively. PMID- 29016141 TI - X-ray and Neutron Reflectivity Study Shows That CLIC1 Undergoes Cholesterol Dependent Structural Reorganization in Lipid Monolayers. AB - CLIC1 belongs to the ubiquitous family of chloride intracellular ion channel proteins that are evolutionarily conserved across species. The CLICs are unusual in that they exist mainly as soluble proteins but possess the intriguing property of spontaneous conversion from the soluble to an integral membrane-bound form. This conversion is regulated by the membrane lipid composition, especially by cholesterol, together with external factors such as oxidation and pH. However, the precise physiological mechanism regulating CLIC1 membrane insertion is currently unknown. In this study, X-ray and neutron reflectivity experiments were performed to study the interaction of CLIC1 with different phospholipid monolayers prepared using POPC, POPE, or POPS with and without cholesterol in order to better understand the regulatory role of cholesterol in CLIC1 membrane insertion. Our findings demonstrate for the first time two different structural orientations of CLIC1 within phospholipid monolayers, dependent upon the absence or presence of cholesterol. In phospholipid monolayers devoid of cholesterol, CLIC1 was unable to insert into the lipid acyl chain region. However, in the presence of cholesterol, CLIC1 showed significant insertion within the phospholipid acyl chains occupying an area per protein molecule of 6-7 nm2 with a total CLIC1 thickness ranging from ~50 to 56 A across the entire monolayer. Our data strongly suggests that cholesterol not only facilitates the initial docking or binding of CLIC1 to the membrane but also promotes deeper penetration of CLIC1 into the hydrophobic tails of the lipid monolayer. PMID- 29016142 TI - Charging and Aggregation Behavior of Cellulose Nanofibers in Aqueous Solution. AB - To understand the charging and aggregation of cellulose nanofibers (CNFs), we performed the following experimental and theoretical studies. The charging behavior of CNFs was characterized by potentiometric acid-base titration measuring the density of deprotonated carboxyl groups at different KCl concentrations. The charging behavior from the titration was quantitatively described by the 1-pK Poisson-Boltzmann (PB) model for a cylinder. The electrophoretic mobility of CNFs was measured as a function of pH by electrophoretic light scattering. The mobility was analyzed with the equation for an infinitely long cylinder considering the relaxation of the electric double layer. Good agreement between experimental mobilities and theoretical calculation was obtained by assuming a reasonable distance from the surface to the slipping plane. The result demonstrated that the negative charge of CNFs originates from the deprotonation of beta(1-4)-d-glucuronan on the surface. The aggregation behavior of CNFs was studied by measuring the hydrodynamic diameter of CNFs at different pH and KCl concentrations. Also, we calculated the capture efficiencies of aggregation, using interaction energies of perpendicularly and parallelly oriented cylinders. The interaction energies between cylinders in both orientations were obtained by the Derjaguin, Landau, Verwey, and Overbeek theory, where the electrostatic repulsion was calculated from the surface potential obtained by the 1-pK PB model. From comparison of the theoretical capture efficiency with the measured hydrodynamic diameter, we suggest that CNFs can be aggregated in perpendicular orientation at low pH and low salt concentration, and the fast aggregation regime of CNFs is realized by the reduction of electric repulsion for both perpendicularly and parallelly interacting CNFs. Meanwhile, the application of Smoluchowski's equation to the mobility of CNFs results in the underestimation of the zeta potential. PMID- 29016143 TI - Nuclear and Fluorescent Labeled PD-1-Liposome-DOX-64Cu/IRDye800CW Allows Improved Breast Tumor Targeted Imaging and Therapy. AB - The overexpression of programmed cell death-1 (PD-1) in tumors as breast cancer makes it a possible target for cancer imaging and therapy. Advances in molecular imaging, including radionuclide imaging and near-infrared fluorescence (NIRF) imaging, enable the detection of tumors with high sensitivity. In this study, we aim to develop a novel PD-1 antibody targeted positron emission tomography (PET) and NIRF labeled liposome loaded with doxorubicin (DOX) and evaluate its application for in vivo cancer imaging and therapy. IRDye800CW and 64Cu were conjugated to liposomes with PD-1 antibody labeling, and DOX was inside the liposomes to form theranostic nanoparticles. The 4T1 tumors were successfully visualized with PD-1-Liposome-DOX-64Cu/IRDye800CW using NIRF/PET imaging. The bioluminescent imaging (BLI) results showed that tumor growth was significantly inhibited in the PD-1-Liposome-DOX-treated group than the IgG control. Our results highlight the potential of using dual-labeled theranostic PD-1 mAb targeted Liposome-DOX-64Cu/IRDye800CW for the management of breast tumor. PMID- 29016144 TI - Alismanin A, a Triterpenoid with a C34 Skeleton from Alisma orientale as a Natural Agonist of Human Pregnane X Receptor. AB - Alismanin A (1), a novel aromatic triterpenoid with a C34 skeleton, was isolated from Alisma orientale together with a rearranged nor-triterpenoid (2) and a 13,17 seco triterpenoid (3). Their structures were determined by a combination of HRESIMS, 2D NMR spectra, electronic circular dichroism (ECD), theoretical calculations, and X-ray diffraction analysis. Compounds 1 and 2 displayed significant activation effects on pregnane X receptor (PXR) at 10 nM. A plausible biosynthetic pathway for 1-3 is also discussed. PMID- 29016145 TI - Terahertz Detection and Imaging Using Graphene Ballistic Rectifiers. AB - A graphene ballistic rectifier is used in conjunction with an antenna to demonstrate a rectenna as a terahertz (THz) detector. A small-area (<1 MUm2) local gate is used to adjust the Fermi level in the device to optimize the output while minimizing the impact on the cutoff frequency. The device operates in both n- and p-type transport regimes and shows a peak extrinsic responsivity of 764 V/W and a corresponding noise equivalent power of 34 pW Hz-1/2 at room temperature with no indications of a cutoff frequency up to 0.45 THz. The device also demonstrates a linear response for more than 3 orders of magnitude of input power due to its zero threshold voltage, quadratic current-voltage characteristics and high saturation current. Finally, the device is used to take an image of an optically opaque object at 0.685 THz, demonstrating potential in both medical and security imaging applications. PMID- 29016146 TI - Effect of Aldehyde and Carboxyl Functionalities on the Surface Chemistry of Biomass-Derived Molecules. AB - The adsorption and decomposition of acetaldehyde and acetic acid were studied on Rh(100) to gain insight into the interaction of aldehyde and carboxyl groups of biomass-derived molecules with the surface. Temperature-programmed reaction spectroscopy (TPRS) was used to monitor gaseous reaction products, whereas Reflection absorption infrared spectroscopy (RAIRS) was used to determine the nature of surface intermediates and reaction paths. The role of adsorbate interactions in oxygenate decomposition chemistry was also investigated by varying the surface coverage. Acetaldehyde adsorbs in an eta2(C, O) configuration for all coverages, where the carbonyl group binds to the surface via the C and O atoms. Decomposition occurs below room temperature (180-280 K) via C-H and C-C bond breaking, which releases CO, H, and CHx species on the surface. At low coverage, CHx dehydrogenation dominates and surface carbon is produced alongside H2 and CO. At high coverage, about 60% of the CHx hydrogenates to form methane, whereas only 40% of the CHx decomposes further to surface carbon. Acetic acid adsorbs dissociatively on the Rh(100) surface via O-H bond scission, forming a mixture of mono- and bidentate acetate. The decomposition of acetate proceeds via two different pathways: (i) deoxygenation via C-O and C-C bond scissions and (ii) decarboxylation via C-C bond scission. At low coverage, the decarboxylation pathway dominates, a process that occurs at slightly above room temperature (280 360 K) and produces CO2 and CHx, where the latter decomposes further to surface carbon and H2. At high coverage, both decarboxylation and deoxygenation occur, slightly, above room temperature (280-360 K). The resulting O adatoms produced in the deoxygenation path react with surface hydrogen or CO to form water and CO2, respectively. The CHx species dehydrogenate to surface carbon for all coverages. Our findings suggest that oxygenates with a C?O functionality and an alkyl end react on the Rh(100) surface to produce synthesis gas and small hydrocarbons whereas CO2 and synthesis gas are produced when oxygenates with a COOH functionality and an alkyl end react with the Rh(100) surface. For both cases, carbon accumulation occurs on the surface. PMID- 29016147 TI - Self-Assembly of Long-Chain Betaine Surfactants: Effect of Tailgroup Structure on Wormlike Micelle Formation. AB - Long-chain amidopropyl betaines are known for their ability to self-assemble into viscoelastic wormlike micellar structures. Here, we explore the effect of tailgroup molecular architecture on this process, comparing five molecules, each with C18 chains but different levels of unsaturation and branching. The surfactants are synthesized from stearic, oleic, linoleic, linolenic, and isostearic acids. The self-assembly of these molecules in aqueous solutions is explored using small- and ultra-small-angle neutron scattering (SANS and USANS). It is seen that optimum wormlike micelle formation is achieved for the oleic chained surfactant, and the alignment of self-assembled structures is further explored using rheo-SANS. The more highly unsaturated molecules form rodlike micelles, whereas the stearic-tailed molecule shows a pronounced Krafft point and the isostearic-chained surfactant is entirely water-insoluble. These results demonstrate the critical importance of tailgroup geometry on surfactant properties and self-assembly for this industrially important class of surfactants. PMID- 29016148 TI - Receding Contact Line Motion on Nanopatterned and Micropatterned Polymer Surfaces. AB - Surface properties such as topography and chemistry affect the motion of the three-phase contact line (solid/liquid/air), which in turn affects the contact angle of a liquid moving on a solid surface. In this work, the motion of the receding water contact line was studied on chemically and topographically patterned surfaces obtained from the dewetting of thin polymer films. The patterned surfaces consisted of hydrophilic poly(4-vinylpyridine) (P4VP) bumps, which were either microsized and sparse or nanosized and dense, on top of a hydrophobic polystyrene (PS) background layer. These patterns are designed for atmospheric water capture, for which the easy roll off of water droplets is crucial to their efficient performance. The dynamic receding water contact angle and contact line height of the patterned surfaces were measured by vertically withdrawing the surfaces from a water bath and compared to those of a flat P4VP substrate. For both the micropatterned and nanopatterned surfaces, the height of the dynamic contact lines normalized by the capillary length was characterized by the equilibrium limit that was predicted from static states. The nanopatterned surface had a faster increase in the normalized height as the capillary number increased. The dynamic receding contact angles on all surfaces studied decreased with increasing withdrawing velocity. Surprisingly, even for these patterned surfaces with high hysteresis, the dynamic receding contact angle followed the Cox-Voinov relation at capillary numbers of between 1 * 10-5 and 5 * 10-5. PMID- 29016150 TI - Imagine that! The effect of counterstereotypic imagined intergroup contact on weight bias. AB - OBJECTIVE: Higher body-weight people are highly stigmatized and face prejudice and discrimination across a number of domains. Further, experiences of weight stigmatization are associated with a host of negative physical, psychological, and social consequences. However, less is known about effective means for reducing weight bias. One strategy that has shown some success in prejudice reduction, yet is relatively untested for weight bias, is imagined intergroup contact. The purpose of this study was to investigate the effect of counterstereotypic imagined intergroup contact on weight bias. METHOD: Participants were randomly assigned to 1 of 2 experimental conditions or a control group. In the experimental conditions, participants were asked to imagine interactions with either a counterstereotypic (e.g., confident, attractive) or stereotypic (e.g., unattractive, insecure) "obese" person. Participants then completed the Anti-fat Attitudes Questionnaire (dislike subscale; Crandall, 1994; Quinn & Crocker, 1999), the Universal Measure of Bias-Fat (negative judgment and social distance subscales; Latner et al., 2008), and the Fat Phobia Scale. RESULTS: Results indicated that participants in the counterstereotypic condition reported lower levels of weight bias (dislike, negative judgment, and social distance) than participants in the stereotypic and control conditions. CONCLUSION: These findings highlight the potential usefulness of counterstereotypic imagined contact to reduce weight bias. (PsycINFO Database Record PMID- 29016149 TI - Physical activity and negative affective reactivity in daily life. AB - OBJECTIVE: The results from experimental studies indicate that physically active individuals remain calmer and report less anxiety after the induction of a standardized stressor. The current study extends this research to real life, and examines whether daily physical activity attenuates negative affect that occurs in response to naturally occurring daily stressors. METHOD: The current study used data from the second wave of the National Study of Daily Experiences, a sub study of the second wave of the Midlife in the United States Study (MIDUS-II) of 2,022 individuals aged 33-84 questioned nightly for eight consecutive days about their general affect and affective responses to stressful events and their engagement in physical activity. RESULTS: Results indicated that while negative affect is significantly elevated on days with stressful events compared to days free of events in all individuals, these effects are attenuated in those who remain physically active when compared to those who were underactive. This was also true for any day participants were physically active. Importantly, negative affect in response to any specific stressor was reduced the closer in time that the stressor occurred to the bout of exercise in underactive participants, while, in active participants, negative affect in response to any stressor remained low throughout the entire day that participants reported that they were active. CONCLUSION: Given the significant mental and physical health implications of elevated affective reactivity observed in previous studies, the current study sheds further light on the importance of remaining physically active in times of stress. (PsycINFO Database Record PMID- 29016151 TI - Associations between immigrant status and pharmacological treatments for diabetes in U.S. adults. AB - OBJECTIVES: Although treatment disparities in diabetes have been documented along racial/ethnic lines, it is unclear if immigrant groups in the United States experience similar treatment disparities. Our objective was to determine whether immigrant status is associated with differences in pharmacological treatment of diabetes in a nationally representative sample of adults with diabetes. We were specifically interested in differences in treatment with oral hypoglycemic agents (OHA) and insulin. METHOD: Respondents were 2,260 adults from National Health and Nutritional Examination Survey (NHANES) 2003-2012 with a self-reported diabetes diagnosis. Immigrant status was indicated by birth within (U.S.-born) or outside (foreign-born) the 50 U.S. States or Washington, DC. Multinomial logistic regression analyses examined associations between immigrant status and (a) treatment with OHAs only and (b) treatment with insulin only or insulin and OHA combination therapy, using no treatment as the reference group. RESULTS: Adjusting for demographics, diabetes severity and duration, cardiovascular disease (CVD), and CVD risk factors, being foreign-born versus U.S.-born was not associated with treatment with OHAs only (odds ratio [OR] = 1.59; 95% confidence interval [CI] [0.97, 2.60]). However, being foreign-born was associated with decreased odds (OR = 0.53; 95% CI [0.28, 0.99]) of treatment with insulin. CONCLUSIONS: Pharmacological treatment of diabetes differs along immigrant status lines. To understand these findings, studies capturing the processes underlying treatment differences in diabetes among immigrants are needed. Findings raise the possibility that integrating information about a patient's immigrant status, in addition to racial/ethnic identity, may be an important component of culturally sensitive diabetes care. (PsycINFO Database Record PMID- 29016152 TI - Knowingly but naively: The overpowering influence of innocence on interrogation rights decision-making. AB - Most suspects waive the guaranteed protections that interrogation rights afford them against police intimidation. One factor thought to motivate suspects' inclination to waive their rights stems from the acquiescence bias whereby suspects mindlessly comply with interrogators' requests. However, research bearing on the phenomenology of innocence has demonstrated the power of innocents' mindset, which could motivate some innocent suspects to waive their rights knowingly (instead of mindlessly complying). To test these ideas, participants (N = 178) were (a) rightfully (guilty) or wrongfully (innocent) accused of wrongdoing during an experimental session, (b) administered 1 of 2 forms that by signing either waived or invoked their rights to a student advocate, and (c) given questions to assess their degree of knowing during the decision-making process (i.e., extent to which individuals were cognizant of their decisions). Results demonstrated that unknowing innocent and guilty individuals tended to passively comply, engaging in a pre-interrogation acquiescence bias by signing waive and invoke forms at similar rates. But, as participants became more cognizant of their decisions, they acquiesced at lower rates and their change from acquiescence differed depending on their status. As innocents became more cognizant, they signed the waiver form at higher rates than the invoke form, thereby demonstrating that innocence can motivate some suspects to knowingly forgo their rights. Conversely, as guilty individuals became more cognizant, they signed the invoke form at higher rates than the waiver form. These findings have implications for reforming pre-interrogation protocols, protecting suspects' civil liberties, and preventing innocents from offering false self-incriminating evidence. (PsycINFO Database Record PMID- 29016153 TI - The implementation and effect of trauma-informed care within residential youth services in rural Canada: A mixed methods case study. AB - OBJECTIVE: The prevalence and associated risks of trauma have led youth-serving institutions to adopt trauma-informed care (TIC). A limited research base has linked TIC with improved outcomes. Associations between TIC and vicarious traumatization (VT) are even less commonly studied. The purpose of this case study is to evaluate the implementation and effect of TIC within 1 residential youth services division in rural Canada using the curriculum-based Risking Connection (RC; Saakvitne et al., 2001) and Restorative Approach (RA; Wilcox, 2012) trauma training programs, with a focus on VT. METHOD: We used an explanatory sequential mixed methods design and a participatory action research approach to evaluate the implementation and effect of RC and RA. Study 1, the quantitative program evaluation, used a prepost design to evaluate the effect of RC and RA on staff. Study 2, the qualitative study, used participant observations and interviews to develop a deeper understanding the quantitative findings. RESULTS: This study replicated previous findings that RC improves attitudes favorable to TIC but found that staff experience of VT increased after TIC training. Qualitative findings suggested that the division was successfully implementing TIC and that increased awareness and discussion of VT were potentially responsible for increases in VT scores. CONCLUSIONS: This case study documents improvements in staff attitudes favorable to TIC post-RC and RA and presents an in-depth analysis of TIC implementation. The study also highlights the complicated relationship between TIC implementation and staff experience of VT. Finally, this study provides a blueprint for conducting program evaluations of TIC. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29016154 TI - Who helps the helper? Differentiation of self as an indicator for resisting vicarious traumatization. AB - OBJECTIVE: This study comprises a first attempt to explain and predict vicarious traumatization among therapists by means of Bowen's Family Systems Theory (Bowen, 1978), especially with reference to the phenomenon "differentiation of self," a central feature of his theory. METHOD: A sample of 134 individual and group therapists who work in public and private clinics completed a series of questionnaires that provided data regarding demographic information, differentiation of self, and a belief scale that measures the existence of vicarious trauma. RESULTS: The findings indicate a strong negative correlation between vicarious traumatization and differentiation of self. In addition, participant age and "being in therapy" were both found to correlate with differentiation of self and vicarious traumatization. CONCLUSION: These findings point to the importance of differentiation of self as a resilience factor protecting against vicarious trauma, and have the potential to contribute to the development of tools for efficiently and accurately assessing predisposition toward vicarious traumatization among therapists. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29016155 TI - Association of posttraumatic nightmares and psychopathology in a military sample. AB - OBJECTIVE: Nightmares are among the most frequent and disturbing symptoms of posttraumatic stress disorder (PTSD). However, basic research questions regarding key associations between certain nightmare characteristics, especially replicativeness, and posttraumatic psychopathology need further empirical elaboration. METHOD: Sixty-two German soldiers (mean age 33.8 years, 17.7% females) admitted to a hospital-based treatment program for veterans completed extensive assessments consisting of clinical interviews and self-rating measures with respect to sociodemographic characteristics and psychopathology as well as dream-related variables. RESULTS: Although nightmare distress, frequency, and replicativeness were all linked to PTSD symptomatology, only the latter proved to be a significant predictor of PTSD diagnosis. Moreover, none of these nightmare characteristics predicted a depression diagnosis. CONCLUSIONS: The replicativeness of nightmares appears to be a key variable for understanding the relationship between posttraumatic nightmares and PTSD, whereas nightmare frequency and distress appear to be more aptly defined as generic markers of mental health. (PsycINFO Database Record PMID- 29016156 TI - Italian validation of the Childhood Trauma Questionnaire-Short Form on a college group. AB - : The Childhood Trauma Questionnaire-Short Form (CTQ-SF) is the most widely used measure of childhood traumatic experiences for the retrospective assessment of adolescents and adults. It facilitates the detection of co-occurrence of traumas during childhood, in effect overcoming the lack of standardized tools for adult assessment. OBJECTIVE: The current study aimed to validate the Italian Childhood Trauma Questionnaire on college students. On this scope, we compared several factor structures proposed in the literature by the original authors (Bernstein et al., 2003), as well as in cross-cultural applications. In addition, we investigated psychometric properties of the Italian CTQ-SF in terms of internal consistency reliability and convergent validity with posttraumatic stress disorder and general psychopathology. METHOD: A total of 446 undergraduate students (M = 23 years, SD = 2.87) participated in the study. RESULTS: The confirmatory factor analyses indicated that the 5-factor solution represents the model that best fits Italian data of nonclinical samples. The unidimensionality of the scale was also not supported by present findings. Additionally, internal consistency reliability was good across the 5 scales and in line with the original version, as well as with previous applications. Correlation of the CTQ SF with posttraumatic stress disorder and general psychopathology suggested that current posttraumatic and general symptoms were moderately significantly associated with the emotional forms of childhood trauma. CONCLUSION: Findings highlighted reliability, structure, and concurrent validity for the Italian CTQ SF and thus supported the implementation of the Italian version of the Childhood Trauma Questionnaire-Short Form in the assessment of traumatic experiences and the screening in nonclinical groups. (PsycINFO Database Record PMID- 29016157 TI - Assailant identity and self-reported nondisclosure of military sexual trauma in partnered women veterans. AB - OBJECTIVE: Department of Veterans Affairs estimates of military sexual trauma (MST) suggest 27% of female veterans have experienced MST. However, Department of Defense data (Department of Defense, 2014) show that a subgroup of active-duty women do not report sexual assaults to a military authority, suggesting barriers to disclosure exist among military samples. No study of female veterans has examined rates of nondisclosure among those with previous screens for MST; these data could inform screening efforts and establishment of safe havens for candid disclosures. METHOD: Using an explanatory sequential mixed-methods survey, a history of MST, and postservice MST disclosures during screening and their associations with demographic, assault, and screening-setting characteristics were evaluated in 359 female veterans. Open-ended responses regarding barriers to disclosure were analyzed using editing analysis style. RESULTS: Eighty-one percent (n = 289) reported MST. Of these, 50% (n = 143) reported a prior screening and 25% (n = 35) reported they did not disclose their true MST status. Veterans who experienced MST by a unit-member assailant were significantly less likely to disclose (adjusted odds ratio = 4.75, 95% confidence interval = 1.20 18.30). Disclosure barriers included stigma, experiential avoidance, and discomfort with the screening setting. CONCLUSION: Creative interventions to reduce nondisclosure among female veterans, with specific attention to those assaulted by a unit member, are urgently needed. (PsycINFO Database Record PMID- 29016158 TI - Fear, negative cognition, and depression mediate the relationship between traumatic exposure and sleep problems among flood victims in China. AB - OBJECTIVE: To examine the prerequisites of sleep problems among a traumatized population, and assess the underlying mechanisms of sleep problems following trauma. METHOD: The current study investigated 187 flood victims from 5 makeshift shelters in the Wuhu city of Anhui province after a major flood disaster that occurred in July 2016. A traumatic exposure questionnaire, a fear questionnaire, a posttraumatic cognition inventory, a depression inventory, and a sleep problems questionnaire were used. RESULTS: Traumatic exposure had a direct and positive association with sleep problems and could also be indirectly associated with sleep problems through fear, depression, but not negative cognitions. The positive association could be the result of a path from negative cognitions to depression, but not from fear to negative cognition, or from fear to depression. Furthermore, a threefold multipath from fear to depression via negative cognitions could also link traumatic exposure to sleep problems. CONCLUSIONS: Flood victims' sleep problems are elicited by the combined role of fear, negative cognitions, and depression following trauma. (PsycINFO Database Record PMID- 29016159 TI - An examination of the test-retest reliability of the ACE-SQ in a sample of college athletes. AB - OBJECTIVE: The Adverse Childhood Experiences (ACE) study is one of the largest studies ever conducted that has examined the relationship of childhood abuse, neglect, and family dysfunction to subsequent health and well-being later in life. Questions from the ACE study evolved into the ACE Study Questionnaire, a measure used for assessing individuals' self-reported experiences of childhood adversity. The ACE measure is widely available and the Centers for Disease Control and Prevention (CDC) recommends it as a tool for assessing one's lifetime risk of mental and physical health problems and other negative social problems. Despite the extensive dissemination of the ACE Study Questionnaire, to date there has been only one article published about its psychometric properties. The current study examined the test-retest reliability of the ACE-SQ in a sample of nonservice seeking college athletes (N = 141). METHOD: Time 1 and Time 2 of data collection were approximately one year apart. Pearson's correlations were computed to observe a level of agreement between Time 1 and Time 2 responses. RESULTS: The overall measure yielded a modest test-retest coefficient, r = .71, p < .001. Household dysfunction items demonstrated a higher stability coefficient, r = .65, p < .001 than did abuse and neglect items, r = .52, p < .001. CONCLUSIONS: These findings suggest that further research is needed on the psychometric properties of this questionnaire in different age populations. (PsycINFO Database Record PMID- 29016160 TI - Chronic pain under missile attacks: Role of pain catastrophizing, media, and stress-related exposure. AB - OBJECTIVE: We examined the effects of exposure to missile attacks on patients' pain and depressive symptoms, moderated by pain-related catastrophizing. METHOD: One-hundred Israeli chronic pain patients were assessed both prior and subsequent to military operation "Protective Edge," during which thousands of missiles landed on populated areas across the country. Baseline assessment included pain, depression, and catastrophizing, and postwar assessment tapped exposure to missiles, pain, and depression. RESULTS: Media exposure predicted an increase in sensory pain under high levels of catastrophizing (1 SD above the mean; unstandardized simple slope = 0.57, p = .01), and depression in the entire sample (b = 0.61, p = .01). Perceived stress related to the missiles exhibited an expected effect, predicting an increase in depressive symptoms (b = 1.45, p = .03). Unexpectedly, perceived stress predicted a decrease in sensory pain under high levels of catastrophizing (unstandardized simple slope = -0.49, p = .02). CONCLUSIONS: Media exposure to acute stress may render chronic pain patients more vulnerable to experiencing pain and depressive symptoms, depending on their use of pain-based catastrophizing. High catastrophizers may attend more to outside threats, amplifying the sensory and affective aspects of pain they experience. Perceived stress also plays a significant role in eliciting depressive symptoms in this population. (PsycINFO Database Record PMID- 29016161 TI - The jingle-jangle of work-nonwork balance: A comprehensive and meta-analytic review of its meaning and measurement. AB - We review research on work-nonwork balance to examine the presence of the jingle fallacy-attributing different meanings to a single construct label-and the jangle fallacy-using different labels for a single construct. In 290 papers, we found 233 conceptual definitions that clustered into 5 distinct, interpretable types, suggesting evidence of the jingle fallacy. We calculated Euclidean distances to quantify the extent of the jingle fallacy and found high divergence in definitions across time and publication outlet. One exception was more agreement recently in better journals to conceptualize balance as unidimensional, psychological, and distinct from conflict and enrichment. Yet, over time many authors have committed the jangle fallacy by labeling measures of conflict and/or enrichment as balance, and disagreement persists even in better journals about the meanings attributed to balance (e.g., effectiveness, satisfaction). To examine the empirical implications of the jingle and jangle fallacies, we conducted meta-analyses of distinct operational definitions of balance with job, life, and family satisfaction. Effect sizes for conflict and enrichment measures were typically smaller than effects for balance measures, providing evidence of a unique balance construct that is not interchangeable with conflict and enrichment. To begin to remedy concerns raised by our review, we propose a definition of work-nonwork balance drawing from theory, empirical evidence from our review, and normative information about how balance should be defined. We conclude with a theory-based agenda for future research. (PsycINFO Database Record PMID- 29016162 TI - Do women CEOs face greater threat of shareholder activism compared to male CEOs? A role congruity perspective. AB - We examine the glass cliff proposition that female CEOs receive more scrutiny than male CEOs, by investigating whether CEO gender is related to threats from activist investors in public firms. Activist investors are extraorganizational stakeholders who, when dissatisfied with some aspect of the way the firm is being managed, seek to change the strategy or operations of the firm. Although some have argued that women will be viewed more favorably than men in top leadership positions (so-called "female leadership" advantage logic), we build on role congruity theory to hypothesize that female CEOs are significantly more likely than male CEOs to come under threat from activist investors. Results support our predictions, suggesting that female CEOs may face additional challenges not faced by male CEOs. Practical implications and directions for future research are discussed. (PsycINFO Database Record PMID- 29016163 TI - A meta-analysis of sex and race differences in perceived workplace mistreatment. AB - Despite the growing number of meta-analyses published on the subject of workplace mistreatment and the expectation that women and racial minorities are mistreated more frequently than men and Whites, the degree of subgroup differences in perceived workplace mistreatment is unknown. To address this gap in the literature, we meta-analyzed the magnitude of sex and race differences in perceptions of workplace mistreatment (e.g., harassment, discrimination, bullying, incivility). Results indicate that women perceive more sex-based mistreatment (i.e., mistreatment that explicitly targets a person's sex) in the workplace than men (delta = .46; k = 43), whereas women and men report comparable perceptions of all other forms of mistreatment (delta = .02; k = 300). Similarly, although racial minorities perceive more race-based mistreatment (i.e., mistreatment that explicitly targets a person's race) in the workplace than Whites (delta = .71; k = 18), results indicate smaller race differences in all other forms of workplace mistreatment (delta = .10; k = 61). Results also indicate that sex and race differences have mostly decreased over time, although for some forms of mistreatment, subgroup differences have increased over time. We conclude by offering explanations for the observed subgroup differences in workplace mistreatment and outline directions for future research. (PsycINFO Database Record PMID- 29016164 TI - Linking job-relevant personality traits, transformational leadership, and job performance via perceived meaningfulness at work: A moderated mediation model. AB - By integrating the fundamental principles of the theory of purposeful work behavior (TPWB; Barrick, Mount, & Li, 2013) with cognitive-affective personality system (CAPS) theory (Mischel, 1977; Mischel & Shoda, 1995), we examine how and when salespeople's job-relevant personality traits relate to their performance. We argue that individuals with personality traits that fit outdoor sales jobs (i.e., conscientious, extraversion, openness to experience) will perceive their work as more meaningful and as a result achieve heightened performance. Moreover, drawing from TPWB and CAPS theory, we expect that as an important element of the social context, transformational leadership moderates the indirect effect of salespeople's job-relevant personality traits on their job performance via enhanced perceptions of meaningfulness at work. Results based on data from 496 outdoor salespeople and their 218 supervisors and regional managers provide support for the hypotheses pertaining to conscientiousness and openness, but not extraversion. Specifically, the conditional indirect effects of conscientiousness or openness on performance through perceived meaningfulness are more positive under low, rather than high, levels of transformational leadership. Implications for research and practice are discussed along with study limitations and future research directions. (PsycINFO Database Record PMID- 29016165 TI - "Falsifiability is not optional": Correction to LeBel et al. (2017). AB - Reports an error in "Falsifiability is not optional" by Etienne P. LeBel, Derek Berger, Lorne Campbell and Timothy J. Loving (Journal of Personality and Social Psychology, 2017[Aug], Vol 113[2], 254-261). In the reply, there were two errors in the References list. The publishing year for the 14th and 21st articles was cited incorrectly as 2016. The in-text acronym associated with these citations should read instead as FER2017 and LCL2017. The correct References list citations should read as follows, respectively: Finkel, E. J., Eastwick, P. W., & Reis, H. T. (2017). Replicability and other features of a high-quality science: Toward a balanced and empirical approach. Journal of Personality and Social Psychology, 113, 244-253. http://dx.doi.org/10.1037/pspi0000075 LeBel, E. P., Campbell, L., & Loving, T. J. (2017). Benefits of open and high-powered research outweigh costs. Journal of Personality and Social Psychology, 113, 230-243. http://dx.doi.org/10 .1037/pspi0000049. The online version of this article has been corrected. (The following abstract of the original article appeared in record 2017-30567-003.) Finkel, Eastwick, and Reis (2016; FER2016) argued the post-2011 methodological reform movement has focused narrowly on replicability, neglecting other essential goals of research. We agree multiple scientific goals are essential, but argue, however, a more fine-grained language, conceptualization, and approach to replication is needed to accomplish these goals. Replication is the general empirical mechanism for testing and falsifying theory. Sufficiently methodologically similar replications, also known as direct replications, test the basic existence of phenomena and ensure cumulative progress is possible a priori. In contrast, increasingly methodologically dissimilar replications, also known as conceptual replications, test the relevance of auxiliary hypotheses (e.g., manipulation and measurement issues, contextual factors) required to productively investigate validity and generalizability. Without prioritizing replicability, a field is not empirically falsifiable. We also disagree with FER2016's position that "bigger samples are generally better, but . . . that very large samples could have the downside of commandeering resources that would have been better invested in other studies" (abstract). We identify problematic assumptions involved in FER2016's modifications of our original research-economic model, and present an improved model that quantifies when (and whether) it is reasonable to worry that increasing statistical power will engender potential trade-offs. Sufficiently powering studies (i.e., >80%) maximizes both research efficiency and confidence in the literature (research quality). Given that we are in agreement with FER2016 on all key open science points, we are eager to start seeing the accelerated rate of cumulative knowledge development of social psychological phenomena such a sufficiently transparent, powered, and falsifiable approach will generate. (PsycINFO Database Record PMID- 29016166 TI - "Replicability and other features of a high-quality science: Toward a balanced and empirical approach": Correction to Finkel et al. (2017). AB - Reports an error in "Replicability and other features of a high-quality science: Toward a balanced and empirical approach" by Eli J. Finkel, Paul W. Eastwick and Harry T. Reis (Journal of Personality and Social Psychology, 2017[Aug], Vol 113[2], 244-253). In the commentary, there was an error in the References list. The publishing year for the 18th article was cited incorrectly as 2016. The in text acronym associated with this citation should read instead as LCL2017. The correct References list citation should read as follows: LeBel, E. P., Campbell, L., & Loving, T. J. (2017). Benefits of open and high-powered research outweigh costs. Journal of Personality and Social Psychology, 113, 230-243. http://dx.doi.org/10 .1037/pspi0000049. The online version of this article has been corrected. (The following abstract of the original article appeared in record 2017-30567-002.) Finkel, Eastwick, and Reis (2015; FER2015) argued that psychological science is better served by responding to apprehensions about replicability rates with contextualized solutions than with one-size-fits-all solutions. Here, we extend FER2015's analysis to suggest that much of the discussion of best research practices since 2011 has focused on a single feature of high-quality science-replicability-with insufficient sensitivity to the implications of recommended practices for other features, like discovery, internal validity, external validity, construct validity, consequentiality, and cumulativeness. Thus, although recommendations for bolstering replicability have been innovative, compelling, and abundant, it is difficult to evaluate their impact on our science as a whole, especially because many research practices that are beneficial for some features of scientific quality are harmful for others. For example, FER2015 argued that bigger samples are generally better, but also noted that very large samples ("those larger than required for effect sizes to stabilize"; p. 291) could have the downside of commandeering resources that would have been better invested in other studies. In their critique of FER2015, LeBel, Campbell, and Loving (2016) concluded, based on simulated data, that ever-larger samples are better for the efficiency of scientific discovery (i.e., that there are no tradeoffs). As demonstrated here, however, this conclusion holds only when the replicator's resources are considered in isolation. If we widen the assumptions to include the original researcher's resources as well, which is necessary if the goal is to consider resource investment for the field as a whole, the conclusion changes radically-and strongly supports a tradeoff-based analysis. In general, as psychologists seek to strengthen our science, we must complement our much-needed work on increasing replicability with careful attention to the other features of a high-quality science. (PsycINFO Database Record PMID- 29016167 TI - Beyond happiness: Building a science of discrete positive emotions. AB - While trait positive emotionality and state positive-valence affect have long been the subject of intense study, the importance of differentiating among several "discrete" positive emotions has only recently begun to receive serious attention. In this article, we synthesize existing literature on positive emotion differentiation, proposing that the positive emotions are best described as branches of a "family tree" emerging from a common ancestor mediating adaptive management of fitness-critical resources (e.g., food). Examples are presented of research indicating the importance of differentiating several positive emotion constructs. We then offer a new theoretical framework, built upon a foundation of phylogenetic, neuroscience, and behavioral evidence, that accounts for core features as well as mechanisms for differentiation. We propose several directions for future research suggested by this framework and develop implications for the application of positive emotion research to translational issues in clinical psychology and the science of behavior change. (PsycINFO Database Record PMID- 29016168 TI - Voice-only communication enhances empathic accuracy. AB - This research tests the prediction that voice-only communication increases empathic accuracy over communication across senses. We theorized that people often intentionally communicate their feelings and internal states through the voice, and as such, voice-only communication allows perceivers to focus their attention on the channel of communication most active and accurate in conveying emotions to others. We used 5 experiments to test this hypothesis (N = 1,772), finding that voice-only communication elicits higher rates of empathic accuracy relative to vision-only and multisense communication both while engaging in interactions and perceiving emotions in recorded interactions of strangers. Experiments 4 and 5 reveal that voice-only communication is particularly likely to enhance empathic accuracy through increasing focused attention on the linguistic and paralinguistic vocal cues that accompany speech. Overall, the studies question the primary role of the face in communication of emotion, and offer new insights for improving emotion recognition accuracy in social interactions. (PsycINFO Database Record PMID- 29016170 TI - Online social network data as sociometric markers. AB - Data from online social networks carry enormous potential for psychological research, yet their use and the ethical implications thereof are currently hotly debated. The present work aims to outline in detail the unique information richness of this data type and, in doing so, to support researchers when deciding on ethically appropriate ways of collecting, storing, publishing, and sharing data from online sources. Focusing on the very nature of social networks, their structural characteristics, and depth of information, we provide a detailed and accessible account of the challenges associated with data management and data storage. In particular, the general nonanonymity of network data sets is discussed, and an approach is developed to quantify the level of uniqueness that a particular online network bestows upon the individual maintaining it. Using graph enumeration techniques, we show that comparatively sparse information on a network is suitable as a sociometric marker that allows for the identification of an individual from the global population of online users. The impossibility of anonymizing specific types of network data carries implications for ethical guidelines and research practice. At the same time, network uniqueness opens up opportunities for novel research in psychology. (PsycINFO Database Record PMID- 29016171 TI - The psychology of neurofeedback: Clinical intervention even if applied placebo. AB - Advocates of neurofeedback make bold claims concerning brain regulation, treatment of disorders, and mental health. Decades of research and thousands of peer-reviewed publications support neurofeedback using electroencephalography (EEG-nf); yet, few experiments isolate the act of receiving feedback from a specific brain signal as a necessary precursor to obtain the purported benefits. Moreover, while psychosocial parameters including participant motivation and expectation, rather than neurobiological substrates, seem to fuel clinical improvement across a wide range of disorders, for-profit clinics continue to sprout across North America and Europe. Here, we highlight the tenuous evidence supporting EEG-nf and sketch out the weaknesses of this approach. We challenge classic arguments often articulated by proponents of EEG-nf and underscore how psychologists and mental health professionals stand to benefit from studying the ubiquitous placebo influences that likely drive these treatment outcomes. (PsycINFO Database Record PMID- 29016172 TI - Addiction training in clinical psychology: Are we keeping up with the rising epidemic? AB - Addiction has emerged as a serious public health crisis. Clinical psychology as a hub science has a long-standing interest in addiction and is particularly well suited to offer multifaceted treatment to those struggling with substance use disorders. To examine how well clinical psychology training is addressing this proliferation of addiction-related problems, we surveyed the directors of clinical training at all APA-accredited U.S. clinical psychology doctoral programs on 7 occasions between 1999 and 2013. The number of clinical programs rose from 181 to 237 programs across the years, with at least 95% response at each wave of data collection. Results indicated that less than 40% of programs had even 1 faculty member studying addiction, and less than 1 third offered any specialty clinical training in addiction. Results also revealed that both the percentage of programs reporting any faculty studying addiction and the percentage of programs offering specialty clinics in addiction have not increased over the 14-year period. We argue that clinical psychology training must bolster its focus on addiction research and practice. (PsycINFO Database Record PMID- 29016173 TI - Adaptability-what it is and what it is not: Comment on Chandra and Leong (2016). AB - Chandra and Leong (2016) propose a new model of adaptability: the diversified portfolio model (DPM) of adaptability. Further thought and research on adaptability is a welcome addition to the limited body of work conducted on this topic to date. However, in their discussion there is a lack of definitional clarity, and there is frequent conflation of adaptability and resilience. It is also the case that the hypothesized adaptability model is general and could apply to many psychological constructs and processes (not just adaptability). In addition, there are gaps in research suggested by the authors that have been addressed by other researchers and there is a good deal of contemporary adaptability research that is not cited. Addressing these limitations in future work is vital to the further development of theory, research, and practice in the area of adaptability. (PsycINFO Database Record PMID- 29016169 TI - The microbiome as a novel paradigm in studying stress and mental health. AB - At the intersection between neuroscience, microbiology, and psychiatry, the enteric microbiome has potential to become a novel paradigm for studying the psychobiological underpinnings of mental illness. Several studies provide support for the view that the enteric microbiome influences behavior through the microbiota-gut-brain axis. Moreover, recent findings are suggestive of the possibility that dysregulation of the enteric microbiota (i.e., dysbiosis) and associated bacterial translocation across the intestinal epithelium may be involved in the pathophysiology of stress-related psychiatric disorders, particularly depression. The current article reviews preliminary evidence linking the enteric microbiota and its metabolites to psychiatric illness, along with separate lines of empirical inquiry on the potential involvement of psychosocial stressors, proinflammatory cytokines and neuroinflammation, the hypothalamic pituitary-adrenal axis, and vagal nerve activation, respectively, in this relationship. Finally, and drawing on these independent lines of research, an integrative conceptual model is proposed in which stress-induced enteric dysbiosis and intestinal permeability confer risk for negative mental health outcomes through immunoregulatory, endocrinal, and neural pathways. (PsycINFO Database Record PMID- 29016175 TI - Missing developmental and sociocultural perspectives: Comment on the "Psychology of Terrorism" special issue (2017). AB - Two critical perspectives were missing from the special issue entitled "Psychology of Terrorism": developmental and sociocultural. From a developmental point of view, the fact that most individuals who engage in terrorist groups or terroristic acts are young men is critically important. Perspectives from adolescent development, neuroscience, and social psychology can shed light on why this is the case. In addition, sociocultural perspectives are needed to answer important community-level questions, such as why some communities are more prone to having youth recruited for terrorism than others. From these perspectives, it is possible to see clearly how discrimination, social oppression, and victimization lead to negative developmental outcomes such as terrorist acts. Lastly, understanding individual and community level resilience against terrorism is necessary. (PsycINFO Database Record PMID- 29016174 TI - Diverse perspectives are welcome: Reply to Martin (2017). AB - Martin's (2017) comment on Chandra and Leong (2016) highlighted (a) lack of definitional clarity of the concept of adaptability, (b) conceptual generality of the model, and (c) incomplete citations of the literature on adaptability. In this reply, the authors contend that lack of definitional clarity of adaptability is symptomatic of the multitude of definitions of adaptability by psychologists of diverse persuasions. Conceptual generality of the diversified portfolio model (DPM) stems from the choice of a broad definition of adaptability, which extends beyond the narrower definitions provided by scholars including Martin, as well as the capability of the model to mesh with this broad definition. Incomplete citations result from the choice to use a few well-known conceptualizations of adaptability for the purpose of exposition from among the thousands of extant studies on adaptability. The central point of Chandra and Leong (2016) is that diversification is an important antecedent and determinant of adaptability and imparts greater adaptability however defined or measured. (PsycINFO Database Record PMID- 29016176 TI - Witch persecutions and torture: Comment on Alison and Alison (2017). AB - In their article Alison and Alison (2017) argue that historical experiences speak against the efficacy of torture. In this comment experiences from the witch persecutions in Europe during the 15th to 17th centuries that support this notion are discussed. Converging data suggests that torture was often instrumental in making large numbers of suspects confess to flying children through the air to nocturnal satanic meetings, during this period. A comparison of the number of false self incriminating confessions given during the Swedish witch trial in the parish of Rattvik 1671 (before royal sanction of torture was given) and the parish of Ockelbo 1675 (after royal sanction of torture was given) is used to illustrate this point. (PsycINFO Database Record PMID- 29016177 TI - Toward a globally informed psychology of humiliation: Comment on McCauley (2017). AB - There has never been a more urgent time for psychologists to gain a broader and deeper understanding of the pernicious dynamics of humiliation. Congratulations to the American Psychologist for introducing an article on the topic of humiliation and asymmetric conflict. Based on more than 20 years of research, a global community of scholars has established humiliation studies as a field of academic inquiry and has built a solid foundation of expertise on the phenomenon of humiliation and its impact. Open violence is only the tip of the iceberg. This commentary offers substantial clarifications and updates in support of McCauley's article and invites psychologists to recognize their vital role in developing research and clinical practice to address the explosive consequences of humiliation around the globe. (PsycINFO Database Record PMID- 29016178 TI - Jerome S. Bruner (1915-2016). AB - Presents an obituary for Jerome S. Bruner, who died in 2016. His long, and productive, life spanned much of the first century of experimental psychology and coincided with the launching of cognitive psychology, a field in which he played an indispensable and pioneering role. His innovative and provocative work constantly challenged the current "mainstream." His impact on education has been equated with that of John Dewey. He was driven throughout his life to pursue the nature of the "human" in both his conceptual and empirical work. The model of an active organizing mind, "going beyond the information given," informed Jerry's work on cognition and led to the influential 1956 book A Study of Thinking, with Jacqueline Goodnow and George Austin. In 1960, Bruner and George Miller established the Center for Cognitive Studies at Harvard, which became a crucible for dynamic innovation across several disciplines and research approaches (PsycINFO Database Record PMID- 29016179 TI - George Mandler (1924-2016). AB - Presents an obituary for George Mandler, who died in London on May 6, 2016 at the age of 91. Mandler was one of the pioneers of the cognitive revolution in psychology. He was instrumental in moving the study of human learning from notions based largely on associations to a view of memory as an organized, nested hierarchical structure. Mandler was also a major proponent of the dual-process theory of recognition memory, in which general feelings of familiarity are distinguished from the context-rich experience of recollection. He brought the study of emotion into prominence, suggesting how emotion and cognition are related. Finally, he repatriated the concept of consciousness from its intellectual exile under behaviorism, stating boldly in 1975 that the construct was respectable, useful, and probably necessary. Mandler edited the Psychological Review from 1970 to 1976, chaired the Governing Board of the Psychonomic Society, and was president of APA Divisions 1 (General Psychology) and 3 (Experimental Psychology and Cognitive Science). (PsycINFO Database Record PMID- 29016180 TI - Albert Pepitone (1925-2016). AB - Presents an obituary for Albert Pepitone, who died on March 17, 2016, in Philadelphia at the age of 91. Pepitone was a renowned social psychologist and professor emeritus at the University of Pennsylvania. His expertise in social psychology opened up areas that significantly broadened its scope, in particular calling attention to cultural issues. wrote extensively, including many scholarly articles and contributions to published volumes. Pepitone's research was largely experimental, testing hypotheses in cognitive, motivational, interpersonal, and group processes. He was active in several psychological organizations and was a fellow of both the American Psychological Association and the Society of Experimental Psychology. (PsycINFO Database Record PMID- 29016181 TI - Gerald Roy Patterson (1926-2016). AB - Presents an obituary for Gerald ("Jerry") Roy Patterson, who passed away on August 22, 2016. Jerry was an intellectual powerhouse who made fundamental contributions to developmental psychology, clinical psychology, school psychology, prevention science, and special education. In 1965 Jerry became the director of clinical training at the University of Oregon and professor of clinical psychology. In 1967 he joined the Oregon Research Institute, where he continued to study aggression, marital conflict, and treatment. Ten years later, he founded the Oregon Social Learning Center (OSLC), where he remained for the duration of his career. Jerry received numerous awards for his scientific activity, including a National Institute of Mental Health Merit Award, the Urie Bronfenbrenner Award, the Presidential Award from the Society of Prevention Research, a Distinguished Scientist Award from the American Psychological Association (APA), the G. Stanley Hall Award from APA Division 7 (Developmental Psychology), and a Distinguished Scientist Award from the Society for Research in Child Development. (PsycINFO Database Record PMID- 29016182 TI - Martin M. Katz (1927-2017). AB - Presents an obituary for Martin M. Katz, who passed away on January 12, 2017 in Rockville, Maryland. Katz was the director of clinical research at the National Institute of Mental Health (NIMH; 1968-1978). Following Katz's retirement from his administration and scientific career at NIMH, he served as professor and director of clinical psychology training at Albert Einstein College of Medicine Medical College in New York (1984-1994). Until his final days, Katz served as a participating and consulting scientist in the longitudinal collaborative research projects he and colleagues initiated to investigate psychopharmacological treatments for depression. (PsycINFO Database Record PMID- 29016183 TI - Paul W. Thayer (1927-2017). AB - Presents an obituary for Paul W. Thayer, who died on January 25, 2017, at the age of 89. Thayer was an industrial and organizational psychologist probably most distinguished by his professional service. He was a fellow of the American Psychological Association (APA), American Psychological Society (APS), and Society for Industrial and Organizational Psychology (SIOP). He received multiple awards for his service, including SIOP's Distinguished Professional Contributions Award (1986) and its Distinguished Service Award (1990), as well as the APA Award for Distinguished Service to Psychological Science (2014). Paul's most recognized scientific contribution was in industrial training. He coauthored (with William McGehee) the first scientific book on the topic titled, Training in Business and Industry (New York, NY: Wiley), in 1961, which is considered a classic in the field. (PsycINFO Database Record PMID- 29016184 TI - The structure of group task performance-A second look at "collective intelligence": Comment on Woolley et al. (2010). AB - Collective intelligence has been described as a general factor that "explains a group's performance on a wide variety of tasks" (Woolley, Chabris, Pentland, Hashmi, & Malone, 2010, p. 686), much like the general intelligence factor explains individuals' performance on cognitive ability tasks. This construct has received widespread attention in both the media and academic community. In this article we reexamine the data from 6 previously published samples that have been used to examine the existence of the collective intelligence construct and show that the empirical support for the construct is generally weak. Specifically, we show that the general factor explains only little variance in the performance on many group tasks. We also highlight how 2 statistical artifacts-the apparent presence of low effort responding and the nested nature of the data-may also have inflated the little covariation that exists between group performance on different tasks. These findings suggest that there is insufficient support for the existence of a collective intelligence construct. (PsycINFO Database Record PMID- 29016185 TI - Clinical Outcomes of Knee Osteoarthritis Treated With an Autologous Protein Solution Injection: A 1-Year Pilot Double-Blinded Randomized Controlled Trial. AB - BACKGROUND: Osteoarthritis (OA) is a debilitating disease resulting in substantial pain and functional limitations. A novel blood derivative has been developed to concentrate both growth factors and antagonists of inflammatory cytokines, with promising preliminary findings in terms of safety profile and clinical improvement. PURPOSE: To investigate if one intra-articular injection of autologous protein solution (APS) can reduce pain and improve function in patients affected by knee OA in a multicenter, randomized, double-blind, saline controlled study. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2. METHODS: Forty-six patients with unilateral knee OA (Kellgren-Lawrence 2 or 3) were randomized into the APS group (n = 31), which received a single ultrasound guided injection of APS, and the saline (control) group (n = 15), which received a single saline injection. Patient-reported outcomes and adverse events were collected at 2 weeks and at 1, 3, 6, and 12 months through visual analog scale (VAS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Knee injury and Osteoarthritis Outcome Score (KOOS), Short Form-36 (SF-36), Clinical Global Impression of Severity/Change (CGI-S/C), Patient Global Impression of Severity/Change (PGI-S/C), and Outcome Measures in Rheumatology Osteoarthritis Research Society International (OMERACT-OARSI) responder rate. Imaging evaluation was also performed with radiograph and magnetic resonance imaging (MRI) before and after treatment (12 months and 3 and 12 months, respectively). RESULTS: The safety profile was positive, with no significant differences in frequency and severity of adverse events between groups. The improvement from baseline to 2 weeks and to 1, 3, and 6 months was similar between treatments. At 12 months, improvement in WOMAC pain score was 65% in the APS group and 41% in the saline group ( P = .02). There were no significant differences in VAS pain improvement between groups. At 12 months, APS group showed improved SF-36 Bodily Pain subscale ( P = .0085) and Role Emotional Health subscale ( P = .0410), as well as CGI-C values ( P = .01) compared with saline control. Significant differences between groups were detected in change from baseline to 12 months in bone marrow lesion size as assessed on MRI and osteophytes in the central zone of the lateral femoral condyle, both in favor of the APS group ( P = .041 and P = .032, respectively). There were no significant differences between APS and control groups in other measured secondary endpoints. CONCLUSION: This study provides evidence to support the safety and clinical improvement at 1-year follow-up of a single intra-articular injection of APS in patients affected by knee OA. Treatment with APS or a saline injection provided significant pain relief over the course of the study with differences becoming apparent at between 6 and 12 months after treatment. TRIAL REGISTRATION: NCT02138890 ( ClinicalTrials.gov identifier). PMID- 29016186 TI - Adherence of Ornithobacterium rhinotracheale to chicken embryo lung cells as a pathogenic mechanism. AB - Ornithobacterium rhinotracheale is a bacterium that causes respiratory disease in birds and it has been isolated in countries with a large poultry production, including Mexico. The pathogenicity mechanisms of this bacterium have not been completely elucidated yet. The capacity of the bacterium to adhere to epithelial cells of chicken in vitro has been evidenced, and since this bacterium has been isolated from the lungs and air sacs of several avian species, the aim of this study was to determine if this bacterium can adhere to chicken lung cells. We used five O. rhinotracheale reference serovars (A-E) that were in contact with primary lung cells cultured from a 19-day-old chicken embryo. O. rhinotracheale adherence was evaluated through optical and transmission electron microscopies. The results revealed that O. rhinotracheale is capable of adhering to chicken embryo lung cells within 3 h of incubation with a diffuse adherence pattern. The adherence percentages of the chicken embryo lung cells were 51-96% according to the serovar of the bacterium. Relative adherence was from 4 to 8 bacteria per cell. Transmission electron microscope data revealed intracellular bacteria inside a vacuole in less than 3 h of incubation. PMID- 29016188 TI - Design of Two Multiplex PCR Assays for Serotyping Shigella flexneri. AB - Shigella flexneri is a major health problem in developing countries. There are 19 serotypes recognized based on O-antigen structure and its typing is important for epidemiological purposes. However, the diversity of serotypes and the difficulties presented by phenotypic serotyping, for example, unavailable antisera for less common antigens, require the implementation of molecular techniques. In this study, we developed two multiplex PCR assays targeting the O antigen synthesis genes and the O-antigen modification genes, for the rapid identification of S. flexneri serotypes 1/7, 2, 4, 5, and 6 (PCR A) and serotype 7 and group antigenic factors (3,4; 6; 7,8; E1037) (PCR B). A total of 73 S. flexneri strains representing 18 serotypes, except serotype 1d, were used in the study. Specific amplification patterns were obtained for each of the different serotypes. All strains tested had concordant results with phenotypic and genotypic serotyping; therefore, its implementation in the microbiology clinical laboratory will significantly improve S. flexneri serotyping. PMID- 29016187 TI - Quantitative and Qualitative Analysis of the Medial Patellar Ligaments: An Anatomic and Radiographic Study. AB - BACKGROUND: The qualitative and quantitative anatomy of the medial patellar stabilizers has been reported; however, a quantitative analysis of the anatomic and radiographic attachments of all 4 ligaments relative to anatomic and osseous landmarks, as well as to one another, has yet to be performed. PURPOSE: To perform a qualitative and quantitative anatomic and radiographic evaluation of the medial patellofemoral ligament (MPFL), medial patellotibial ligament (MPTL), medial patellomeniscal ligament (MPML), and medial quadriceps tendon femoral ligament (MQTFL) attachment sites, with attention to their relationship to pertinent osseous and soft tissue landmarks. STUDY DESIGN: Descriptive laboratory study. METHODS: Ten nonpaired fresh-frozen human cadaveric knees were dissected, and the MPFL, MPTL, MPML, and MQTFL were identified. A coordinate measuring device quantified the attachment areas of each structure and its relationship to pertinent bony landmarks. Radiographic analysis was performed through ligament attachment sites and relevant anatomic structures to assess their locations relative to pertinent bony landmarks. RESULTS: Four separate medial patellar ligaments were identified in all specimens. The center of the MPFL attachments was 14.3 mm proximal and 2.1 mm posterior to the medial epicondyle and 8.3 mm distal and 2.7 mm anterior to the adductor tubercle on the femur and 8.9 mm distal and 19.9 mm medial to the superior pole on the patella. The MQTFL had a mean insertion length of 29.3 mm on the medial aspect of the distal quadriceps tendon. The MPTL and MPML shared a common patellar insertion and were 9.1 mm proximal and 15.4 mm medial to the inferior pole. The MPTL attachment inserted on a newly identified bony ridge, which was located 5.0 mm distal to the joint line. The orientation angles of the MPTL and MPML with respect to the patellar tendon were 8.3 degrees and 22.7 degrees , respectively. CONCLUSION: The most important findings of this study were the correlative anatomy of 4 distinct medial patellar ligaments (MPFL, MPTL, MPML, MQTFL), as well as the identification of a bony ridge on the medial proximal tibia that consistently served as the attachment site for the MPTL. The quantitative and radiographic measurements, while comparable with current literature, detailed the meniscal insertion of the MPML and defined a patellar insertion of the MPTL and the MPML as a single attachment. The data allow for reproducible landmarks to be established from previously known bony and soft tissue structures. CLINICAL RELEVANCE: The findings of this study provide the anatomic foundation needed for an improved understanding of the role of medial-sided patellar restraints. This will help to further refine injury patterns and/or soft tissue deficiencies that result in lateral patellar instability, which can then be addressed with an anatomic-based reconstruction or repair technique and potentially lead to improved outcomes. PMID- 29016189 TI - Early and 24 h post-mortem thigh (ilio tibialis) muscle metabolism and meat quality in two genetic types of turkeys and their reciprocal crosses, raised under semi-confined conditions. AB - 1. The experiment was conducted in order to determine the effect of the direction of turkey crossing on quality traits of their thigh muscle. 2. In total, 1358 turkeys of slow- (SG) and fast-growing (FG) lines as well as SF crosses (SG * FG) and FS crosses (FG * SG) were reared with access to free range to 21 weeks of age in the case of males and 15 weeks of age in the case of hens. 3. After slaughter of 15 males and 15 hens from each genetic line, their thigh muscles were examined and the following traits were measured after 5-min, 45-min, 2-h and 24-h post mortem: temperature, pH, glycogen content (G), lactate content (L) and electrical conductivity (EC). Quality attributes were evaluated based on chemical composition, water holding capacity, cooking loss (%) and colour. 4. The rate of post-mortem changes in temperature, G, L and pH in muscles differed among the 4 lines of turkeys, with the highest metabolic rate determined for muscles of SG turkeys, followed by muscles of SF, FS and FG birds. A more beneficial muscle water holding capacity of both sexes of turkeys and better results of cooking loss in male muscles were found in SG and SF turkeys. The thigh muscles of the crosses were characterised by a higher content of protein and a lower content of fat compared to the muscles of FG turkeys, and in the case of the males also by a higher protein content compared to the muscles of SG birds. 5. Owing to the faster post-mortem metabolism, better water holding capacity, lower cooking loss and fat content at a similar content of protein, the thigh muscles of SF crosses raised in the free range system represent a better quality of meat for consumers compared to the thigh muscles of FS turkeys. PMID- 29016190 TI - Effect of flapless osteoperforation-assisted tooth movement on atrophic alveolar ridge: Histomorphometric and gene-enrichment analysis. AB - OBJECTIVE: To investigate the effect of flapless osteoperforation on the tissue response of the atrophic alveolar ridge affected by orthodontic tooth movement (OTM). MATERIALS AND METHODS: An atrophic alveolar ridge model was established in the mandibular quadrants of eight beagle dogs. As a split-mouth design, the quadrants were randomly divided into group C (OTM only) and group OP (OTM with flapless osteoperforation). The rate of OTM for 10 weeks was compared between groups, and micro-CT-based histomorphometric analysis and RNA-sequencing-based gene-enrichment analysis were performed targeting the atrophic ridge. RESULTS: Group OP displayed more rapid tooth movement with lower bone mineral density and higher trabecular fraction in the atrophic ridge than did group C, showing no intergroup difference of total ridge volume. As contributing biological functional pathways in group OP, the genes related to osteoclast differentiation and TNF signaling pathway were up-regulated and those associated with Wnt signaling pathway and AMPK signaling pathway were down-regulated. CONCLUSIONS: Flapless osteoperforation facilitated the rate of OTM toward the atrophic ridge, maintaining low bone density, whereas it did not increase the volume of the atrophic ridge. PMID- 29016191 TI - Treatment changes of hypo- and hyperdivergent Class II Herbst patients. AB - OBJECTIVES: To determine the relative effects of Herbst appliance therapy in hypo and hyperdivergent patients. MATERIALS AND METHODS: The treated group included 45 growing Class II, division 1, patients treated with stainless steel crown Herbst appliances, followed by fixed edgewise appliances. The untreated control group consisted of 45 Class II, division 1, subjects, matched to the treated sample based on Angle classification, age, sex, and pretreatment mandibular plane angle (MPA). Subjects were categorized as hypo- or hyperdivergent based on their MPAs. Pre- and posttreatment cephalograms were traced and superimposed on cranial base and mandibular structures. RESULTS: The primary effect of the Herbst in terms of maxillomandibular correction was in the maxilla. It significantly restricted maxillary growth, producing a "headgear effect." Mandibular treatment changes depended on divergence. Hyperdivergent patients experienced a deleterious backward true mandibular rotation with Herbst treatment. Hypodivergent patients, as well as untreated hypo- and hyperdivergent controls, underwent forward true mandibular rotation. However, hypodivergent chins did not advance any more than expected for untreated hypodivergent Class II patients. CONCLUSIONS: Hypo- and hyperdivergent patients benefit from the Herbst's headgear effect. While the mandibular growth of hypodivergent patients overcomes the negative rotational effects, hyperdivergent patients undergo a deleterious backward mandibular rotation and increases in facial height. PMID- 29016192 TI - Added Value of Preoperative Computed Tomography for Determining Cartilage Degeneration in Patients With Osteochondral Lesions of the Talar Dome. AB - BACKGROUND: Osteochondral lesions of the talar dome (OLTs) involve the articular cartilage and subchondral bone. The subchondral bone plate (SBP) plays a crucial role in cartilage metabolism, and computed tomography (CT) can provide more precise information on subchondral bone. CT image prediction of the histological findings on OLT will be useful to determine the most appropriate therapeutic strategy. PURPOSE: To evaluate the unique features of the CT findings that relate to the condition of the articular cartilage in OLT. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Thirty ankles in 29 patients who had OLT with an osteochondral fragment were retrospectively reviewed. At surgery, the osteochondral fragment of 19 ankles could be preserved (preservation group) by fixation or drilling, and in the remaining 11 ankles, the osteochondral fragment was removed (excision group). Preoperative CT findings were compared between the 2 groups. Biopsies of the osteochondral fragment from 13 ankles were performed. The relationship between the CT and histological findings were evaluated. RESULTS: The area of lesion in the preservation group was significantly larger than that in the excision group. The CT images of the lesion showed the rate of absorption of the SBP in the preservation group to be lower than that in the excision group. As for the lesion bed absorption, it was higher in the preservation group than in the excision group. All cases in the excision group showed bed sclerosis, compared with 42.1% in the preservation group. The specimens with disruption of the SBP exhibited cartilage degeneration and abundant chondrocyte cloning. OLT with absorption of the SBP on CT showed severe cartilage degeneration, while the remaining SBP on CT showed low-grade cartilage degeneration. CONCLUSION: This study shows the features of preoperative CT and histological findings in OLT with osteochondral fragments. The condition of the SBP affects the cartilage degeneration. CT findings provide important information for the determination of surgical treatment. PMID- 29016194 TI - Outcomes After Operative and Nonoperative Treatment of Proximal Hamstring Avulsions: A Systematic Review and Meta-analysis. AB - BACKGROUND: No meta-analysis has compared outcomes of operative and nonoperative proximal hamstring avulsion treatment. PURPOSE: To compare outcomes of operative and nonoperative proximal hamstring avulsion treatment, including acute, chronic, partial, and complete repairs. STUDY DESIGN: Meta-analysis. METHODS: PubMed, CINAHL, SPORTdiscus, Cochrane Library, EMBASE, and Web of Science were searched up to July 2016. Three authors screened the studies and performed quality assessment using criteria from the Methodologic Index for Nonrandomized Studies. A best evidence synthesis was subsequently used. RESULTS: Twenty-four studies (795 proximal hamstring avulsions) were included. Twenty-two studies included proximal hamstring avulsion repairs; 1 study had proximal hamstring avulsion repairs and a control group of nonoperatively treated proximal hamstring avulsions; and 1 study had solely nonoperatively treated proximal hamstring avulsions. The majority of studies were of low methodological quality. Overall, repairs had significantly higher patient satisfaction (90.81% vs 52.94%), hamstring strength (85.01% vs 63.95%), Lower Extremity Functional Scale scores (72.77 vs 69.53), and single-legged hop test results (119.1 vs 56.62 cm) (all P < .001); complications occurred in 23.17% of cases. Compared with chronic repairs, acute avulsion repairs had greater patient satisfaction (95.48% vs 83.79%), less pain (1.07 vs 3.71), and greater strength (85.2% vs 82.8%), as well as better scores for the Lower Extremity Functional Scale (75.64 vs 71.5), UCLA activity scale (University of California, Los Angeles; 8.57 vs 8.10), and Single Assessment Numeric Evaluation (93.36 vs 86.50) (all P < .001). Compared with partial avulsion repairs, complete avulsion repairs had higher patient satisfaction (89.64% vs 81.35%, P < .001), less pain (1.87 vs 4.60, P < .001), and higher return to sport or preinjury activity level, but this was insignificant (81.43% vs 73.83%, P = .082). Partial avulsion repairs had better hamstring strength (86.04% vs 83.71%, P < .001) and endurance (107.13% vs 100.17%, P < .001). Complete repairs had significantly higher complication rates (29.38% vs 11.27%, P = .001). CONCLUSION: Proximal hamstring avulsion repair resulted in superior outcomes as compared with nonoperative treatment, although the complication rate was 23.17%. The nonoperative group was quite small, making a true comparison difficult. Acute repairs have better outcomes than do chronic repairs. Complete avulsion repairs had higher patient satisfaction, less pain, and a higher complication rate than partial avulsion repairs, although partial avulsion repairs had better hamstring strength and endurance. Studies of high methodological quality are lacking in terms of investigating the outcomes of proximal hamstring avulsion repairs. PMID- 29016197 TI - Nutritional Therapy for Patients with Esophageal Cancer. AB - Malnutrition develops in 79% patients with esophageal cancer. Thus, these patients represent a group of cancer patients, which is the most nutritionally compromised. Dysphagia and more than 10% loss of body weight are already present at the time of diagnosis. Treatments for esophageal cancer contribute significantly to the development of malnutrition. This paper describes the nutritional treatment of patients and nutritional strategies in patients with dysphagia and other nutritional problems that accompany the treatment of patients with esophageal cancer. Here are shown the types and methods of nutritional support, which are suitable for this group of patients. Nutritional support of patients with esophageal cancer is performed as a parallel therapeutic route. PMID- 29016195 TI - Critical Assessment of Analytical Techniques in the Search for Biomarkers on Mars: A Mummified Microbial Mat from Antarctica as a Best-Case Scenario. AB - The search for biomarkers of present or past life is one of the major challenges for in situ planetary exploration. Multiple constraints limit the performance and sensitivity of remote in situ instrumentation. In addition, the structure, chemical, and mineralogical composition of the sample may complicate the analysis and interpretation of the results. The aim of this work is to highlight the main constraints, performance, and complementarity of several techniques that have already been implemented or are planned to be implemented on Mars for detection of organic and molecular biomarkers on a best-case sample scenario. We analyzed a 1000-year-old desiccated and mummified microbial mat from Antarctica by Raman and IR (infrared) spectroscopies (near- and mid-IR), thermogravimetry (TG), differential thermal analysis, mass spectrometry (MS), and immunological detection with a life detector chip. In spite of the high organic content (ca. 20% wt/wt) of the sample, the Raman spectra only showed the characteristic spectral peaks of the remaining beta-carotene biomarker and faint peaks of phyllosilicates over a strong fluorescence background. IR spectra complemented the mineralogical information from Raman spectra and showed the main molecular vibrations of the humic acid functional groups. The TG-MS system showed the release of several volatile compounds attributed to biopolymers. An antibody microarray for detecting cyanobacteria (CYANOCHIP) detected biomarkers from Chroococcales, Nostocales, and Oscillatoriales orders. The results highlight limitations of each technique and suggest the necessity of complementary approaches in the search for biomarkers because some analytical techniques might be impaired by sample composition, presentation, or processing. Key Words: Planetary exploration-Life detection-Microbial mat-Life detector chip Thermogravimetry-Raman spectroscopy-NIR-DRIFTS. Astrobiology 17, 984-996. PMID- 29016193 TI - The Possible Emergence of Life and Differentiation of a Shallow Biosphere on Irradiated Icy Worlds: The Example of Europa. AB - Irradiated ice-covered ocean worlds with rocky mafic mantles may provide the conditions needed to drive the emergence and maintenance of life. Alkaline hydrothermal springs-relieving the geophysical, thermal, and chemical disequilibria between oceans and tidally stressed crusts-could generate inorganic barriers to the otherwise uncontrolled and kinetically disfavored oxidation of hydrothermal hydrogen and methane. Ionic gradients imposed across these inorganic barriers, comprising iron oxyhydroxides and sulfides, could drive the hydrogenation of carbon dioxide and the oxidation of methane through thermodynamically favorable metabolic pathways leading to early life-forms. In such chemostatic environments, fuels may eventually outweigh oxidants. Ice covered oceans are primarily heated from below, creating convection that could transport putative microbial cells and cellular cooperatives upward to congregate beneath an ice shell, potentially giving rise to a highly focused shallow biosphere. It is here where electron acceptors, ultimately derived from the irradiated surface, could be delivered to such life-forms through exchange with the icy surface. Such zones would act as "electron disposal units" for the biosphere, and occupants might be transferred toward the surface by buoyant diapirs and even entrained into plumes. Key Words: Biofilms-Europa Extraterrestrial life-Hydrothermal systems. Astrobiology 17, 1265-1273. PMID- 29016196 TI - Prevalence of GJB2 Mutations in Affected Individuals from United Arab Emirates with Autosomal Recessive Nonsyndromic Hearing Loss. AB - AIM: Mutations in the gap junction protein beta 2 (GJB2) gene are responsible for more cases of nonsyndromic recessive hearing loss than any other gene. The purpose of our study was to evaluate the prevalence of GJB2 mutations among affected individuals from United Arab Emirates (UAE). METHODS: There were 50 individuals diagnosed with hereditary hearing loss and 120 healthy individuals enrolled in the study. The Sanger sequencing method was used to screen the GJB2 coding region in all affected individuals. The c.-1G>A variant was determined by the polymerase chain reaction-restriction fragment length polymorphism method in normal individuals. RESULTS AND DISCUSSION: Nine cases with bi-allelic mutations and three cases with mono-allelic mutations were detected in 12 out of 50 patients (24%). The homozygous mutation c.35delG was identified as the cause of hearing loss in six participants (12%). The mutation c.506G>A was identified in three affected individuals (6%). The allelic frequency (14%) and low percentage of individuals that were homozygous (2%) for the c.35delG mutation suggest that there are other genes responsible for nonsyndromic deafness in the UAE population. The results reported here are a preliminary step in collecting epidemiological data regarding autosomal recessive nonsyndromic hearing loss related to GJB2 gene mutations among the UAE population. CONCLUSION: The c.35delG mutation of the GJB2 gene is the most frequently seen causative mutation in the UAE and is followed by the p.Cys169Tyr mutation. PMID- 29016198 TI - Carcinogenicity of High Consumption of Meat and Lung Cancer Risk Among Non Smokers: A Comprehensive Meta-Analysis. AB - Increasing evidence suggests that high consumption of meat is linked to lung cancer but the previous meta-analyses did not properly address the role of tobacco smoking as a potential confounder. We conducted a meta-analysis to investigate the association of lung cancer, among never smokers, with consumption of various type of meat, fish, heterocyclic amines and polycyclic aromatic hydrocarbons. We performed a systematic literature search and meta-analysis, for highest versus lowest consumption and dose-response. The results from random effects models summarized data from 14 independent observational studies and 5368 lung cancer cases. We found a statistically significant 24% increased risk of lung cancer for high consumption of red meat (Summary Relative Risk 1.24, 95% CI 1.01-1.51), based on 11 estimates, with low heterogeneity (I2 = 31%) and no indication of publication bias. No significant associations between high consumption of other types of meat, fish nor for heterocyclic amines and lung cancer risk were detected. No significant risk estimates were found for the increase of one serving per week of any type of meat or fish. Our meta-analysis suggests that a high intake of red meat may increases the risk of lung cancer among never and non-smokers. PMID- 29016199 TI - Ability-Based Balancing Using the Gross Motor Function Measure in Exergaming for Youth with Cerebral Palsy. AB - OBJECTIVE: To test if the gross motor function measure (GMFM) could be used to improve game balancing allowing youth with cerebral palsy (CP) with different physical abilities to play a cycling-based exercise videogame together. Our secondary objective determined if exergaming with the GMFM Ability-Based algorithm was enjoyable. MATERIALS AND METHODS: Eight youth with CP, 8-14 years of age, GMFM scores between 25.2% and 87.4% (evenly distributed between Gross Motor Function Classification System levels II and III), competed against each other in head-to-head races, totaling 28 unique race dyads. Dyads raced three times, each with a different method of minimizing the distance between participants (three balancing algorithms). This was a prospective repeated measures intervention trial with randomized and blinded algorithm assignment. The GMFM Ability-Based algorithm was developed using a least squares linear regression between the players' GMFM score and cycling cadence. Our primary outcome was dyad spread or average distance between players. The GMFM Ability based algorithm was compared with a control algorithm (No-Balancing), and an idealized algorithm (one-speed-for-all [OSFA]). After each race, participants were asked "Was that game fun?" and "Was that game fair?" using a five-point Likert scale. RESULTS: Participants pedaled quickly enough to elevate their heart rate to an average of 120 +/- 8 beats per minute while playing. Dyad spread was lower when using GMFM Ability-Based balancing (4.6 +/- 4.2) compared with No Balancing (11.9 +/- 6.8) (P < 0.001). When using OSFA balancing, dyad spread was (1.6 +/- 0.9), lower than both GMFM Ability-Based (P = 0.006) and No-Balancing (P < 0.001). Cycling cadence positively correlated to GMFM, equal to 0.58 (GMFM) +33.29 (R2adj= 0.662, P = 0.004). Participants rated the games a median score 4/5 for both questions: "was that game fun?" and "was that game fair?." CONCLUSION: The GMFM Ability-Based balancing decreased dyad spread while requiring participants to pedal quickly, facilitating interaction and physical activity. PMID- 29016202 TI - The role of plant foods in traditional Wet'suwet'en nutrition. AB - This paper investigates the role of plant foods in traditional diet of a northern foraging group, the Wet'suwet' en Indians of northwest British Columbia. Plant foods were important in the traditional diet of the Wet'suwet'en people, although the bulk of calories, protein, minerals and B vitamins were derived from animal foods. Plant foods were consumed throughout most or all of the year. Large quantities of plant foods, notably berries and fern rhizomes, were collected and stored for winter consumption. Critical contributions from plant foods included vitamin C, fibre, and carbohydrate to balance the consumption of protein in meat. Plant foods also made significant contributions to other nutrients, including iron, calcium and magnesium. The role of plant foods in folate nutrition is still unclear. Medicinal teas, green vegetables and rice root bulbs (Fritillaria camschatcensis) contributed to vitamin C in late winter and spring. PMID- 29016200 TI - Analysis of Movement Acceleration of Down's Syndrome Teenagers Playing Computer Games. AB - OBJECTIVE: This study aimed to evaluate movement acceleration characteristics in adolescents with Down syndrome (DS) and typical development (TD), while playing bowling and golf videogames on the Nintendo(r) WiiTM. MATERIALS AND METHODS: The sample comprised 21 adolescents diagnosed with DS and 33 with TD of both sexes, between 10 and 14 years of age. The arm swing accelerations of the dominant upper limb were collected as measures during the bowling and the golf games. The first valid measurement, verified by the software readings, recorded at the start of each of the games, was used in the analysis. RESULTS: In the bowling game, the groups presented significant statistical differences, with the maximum (M) peaks of acceleration for the Male Control Group (MCG) (M = 70.37) and Female Control Group (FCG) (M = 70.51) when compared with Male Down Syndrome Group (MDSG) (M = 45.33) and Female Down Syndrome Group (FDSG) (M = 37.24). In the golf game the groups also presented significant statistical differences, the only difference being that the maximum peaks of acceleration for both male groups were superior compared with the female groups, MCG (M = 74.80) and FCG (M = 56.80), as well as in MDSG (M = 45.12) and in FDSG (M = 30.52). CONCLUSION: It was possible to use accelerometry to evaluate the movement acceleration characteristics of teenagers diagnosed with DS during virtual bowling and golf games played on the Nintendo Wii console. PMID- 29016203 TI - Dietary intake changes associated with post-cyclone food aid in Western Samoa. AB - This study examines dietary intake responses to a food aid program in Western Samoa, which consisted primarily of rice and flour supplements. Using a semi quantitative food frequency questionnaire, intake estimates were made for 147 Samoans (72 men, 75 women), 5 months before and 8 months after a tropical cyclone. Study participants were from urban Apia (n = 34) and three rural, more traditional villages (n = 113). For the total sample, consumption of rice and pancakes more than doubled, and the contribution of these foods to total carbohydrate and kilocalorie intake increased approximately three-fold (p < 0.0001, for paired t-tests). Significant decreases were noted for the nutrient contribution from breadfruit and coconut products. These dietary changes were significantly less in the urban sub-sample. These results indicate the food aid may have accelerated an existing modernizing trend in the diet of Samoans. The nutritional and economic implications are discussed within the context of Western Samoa. PMID- 29016204 TI - Consumption of dietary fiber in rural Mexico. AB - The average per capita intake of dietary fibre and the relative contribution of different foods to its intake in the Mexican rural population was studied. Food consumption data were obtained from the National Nutrition Surveys of 1979 (21,248 families in 219 rural Mexican communities), and from a similar survey of the same communities in 1989 (20,759 families). Average per capita intake of total dietary fibre (TDF) ranged from 19.8 to 34.0 g/d (average 27.2 +/- 3.3) in 1979 and from 17.5 to 27.1 g/d (average 22.5 +/- 2.2) in 1989. About 13% of TDF in both surveys was contributed by soluble dietary fibre. Of the 19 regions of the country, 18 exhibited a significant reduction in TDF intake from 1979 to 1989 (p < 0.001). With the exception of two regions on the northern border, maize was the major single source of TDF (from 31 to 74% of TDF). The implication of these observations on disease patterns needs to be studied. PMID- 29016205 TI - Chemical, nutritional and sensory evaluation of green beans fermented with and without starter culture. AB - Two varieties of green bean locally known as Binz and Mangtout were fermented with and without starter culture. During fermentation pH changes, total reducing sugars, total acids, thiamine, riboflavin and protein contents were determined. After the pH of the beans had fallen to below 4.0 the beans were pasteurized and sensory evaluation was carried out to assess the taste, texture, aroma and overall acceptability using a 5 point hedonic scale. The pH of the beans fermented with starter culture fell to below 4.0 after 4 days whereas the samples fermented without starter culture took 8 days. In both cases a sharp decrease in sugars and increase in acids were observed within the first two days of fermentation but samples fermented without starter produced significantly less acids. Although there was a significant decrease (p < 0.05) of the vitamins and protein with fermentation period, there were no significant differences between samples fermented with and without starter culture. Overall both varieties produced acceptable fermented products but samples fermented without starter culture were more acceptable than those fermented with starter culture. PMID- 29016206 TI - A comparison of transferred receptor with other iron assessment measures in an upper-income post partum Jamaican sample. AB - Iron (Fe) deficiency is the most prevalent nutritional deficiency in the world. During their reproductive years, women are especially vulnerable. However, methods of assessing Fe deficiency in countries where both Fe deficiency and infection frequently coexist, are not optimal. Frequently used methods do not differentiate between anemia due to Fe deficiency or that due to inflammation. This study compared several Fe assessment methods (Plasma ferritin, serum transferrin receptor (s-TfR), and erythrocyte protoporphyrin) in a six week, post partum, upper income sample. A variety of socio-economic, hematological, and dietary information was collected from 73 Jamaican women. S-TfR values were compared with the other Fe assessment indices using sensitivity/specificity/predictive value analysis. Results indicated that anemia (Hb < 12.0 g/dl) was present in 37.5% of the sample and that Fe deficient erythropoiesis existed in between 7 and 13% depending upon assessment method. S TfR was highly specific, but had a low sensitivity and positive predictive value. Use of s-TfR and the high percent of anemia are discussed. PMID- 29016207 TI - Food bowl division and social change. AB - Effective, local food sharing mechanisms are vital if the nutritional needs of small-scale communities are to be met. Changes in the ways in which food entitlement are decided by villagers in Keneba, The Gambia are described. Membership of the consumption unit (sinkird) is the chief means by which individuals gain food security. Consumption units are kin-based, but outsiders can negotiate membership. The impact on sinkiro structure of two research stations based in the village is analysed. Changes in women's position within the wage economic sector are reviewed, and the increased level of female responsibility for sinkiro provision analysed. Strategies of crisis management are linked to economic change and shifting gender relations. The sinkiro endures in a rapidly changing environment in which the long-term food security of many African communities is threatened. PMID- 29016209 TI - Erratum. PMID- 29016208 TI - Isotope Discriminations Upon Biosynthesis in Natural Systems: General Causes and Individual Factors of the Different Bioelements. AB - The global isotope abundance of natural organic compounds is determined by that of their precursors. A prerequisite for the formation of non-statistical intermolecular and intramolecular isotope distributions is the occurance of thermodynamic and kinetic isotope effects in irreversible and branched metabolic processes. This coincidence permits the interference of external factors like climatological conditions during biosynthesis, thus leading to corresponding modulations of isotope fractionations. The general principles of the in-vivo isotope discrimination are outlined and the individual properties of the different bioelements in this system are described. The results are discussed in regard to obtain maximum information about the origin and authenticity of a natural compound by multielement isotope analysis. PMID- 29016210 TI - The Stable Isotopic Geochemistry of the Sulfur and Carbon Cycles in a Modern Karst Environment. AB - The stable isotopic geochemistry of the sulfur and carbon cycles in a modern karst environment at the southwest border of the Harz Mountains (Germany) has been studied during a 7-year period. Beside major, minor and trace elements, river and sulfate-carbonate ground water were analyzed for the 13C/12C ratios of the dissolved carbonate species, the 18O/16O ratio of water, and the 34S/32S and 18O/16O ratios of dissolved sulfate. Additionally, the carbon, sulfur and oxygen isotopic composition of the major karst aquifers (carbonate and gypsum anhydrite rocks) of the Permian Zechstein formation was measured. Nowadays, the stable isotope biogeochemistry of the river and karst water in the studied area results from the complex interactions between dissolution of biogenic CO2 in the water unsaturated zone, (minor) subterrestrial microbial decomposition reactions of organic matter (recent DOC or fossil organic matter), interactions with carbonate and sulfate aquifer minerals, and input of acids from atmospheric pollution (e.g., sulfuric acid). Subsurface precipitation of secondary calcite due to the incongruent dissolution of gypsum and/or dolomite is deduced from the hydrogeochemical composition of selected ground waters and the isotopical composition of calcite found in gypsum aquifer material. Spring and river waters were additionally influenced by the liberation of carbon dioxide into the Earth's atmosphere, a process which is accompanied by the preferrential desorbtion of 12CO2. The sulfur isotopic composition of dissolved sulfate from ground and spring waters indicates a mixture of sulfate derived from surface waters (mainly originating from atmospheric pollution) and geogenic sulfate from the subsurface dissolution of gypsum/anhydrite of the Zechstein formation. The oxygen isotopic composition of dissolved sulfate is generally far away from the exchange equilibrium with water, but consistent with the two-component mixing model derived from the sulfur isotope ratios. PMID- 29016211 TI - Chemical and Isotope Investigations in Dissolved Gases of a Meromictic Residual Lake. AB - Lake Hufeisen near Halle/Saale has been formed in an old mining pit. Its deepest part is trench shaped and filled with water of sodium chloride content. Due to the density difference strong mixing processes in this part of the water body are prevented all over the year (meromictic lake). Therefore anoxic conditions have been established and the organic matter of the lake sediments is converted to carbon dioxide and methane. Over a period of more than one year gas samples were collected from different water depths. The investigations of the chemical composition (mainly nitrogen, carbon dioxide and methane) and the carbon isotope ratios show different relationships for individual species. The results are discussed with respect to the behaviour of the gases in the water column and to the stability of the density stratification in the saline bottom water. PMID- 29016212 TI - Editorial board page for "Isotopes in Environmental and Health Studies", Volume 35, Number 1-2. AB - This is a scanned image of the original Editorial Board page(s) for this issue. PMID- 29016213 TI - Preface. PMID- 29016215 TI - Assessment of the Flow Dynamic of a Mining Lake by Stable Isotope Investigations. AB - For water samples from mining lake ML 111 of the Lusatian Lignite District and surrounding aquifers delta34S(SO4-b), delta15N(NH4+), deltaD, and delta18O (H2O) values have been determined to asess the flow dynamic of the in- and outflow scenario. The high mineralization and acidification (pH > 2.6) of the lake water results from an intensive interaction with the surrounding dump sites and the inflow of extremely sulfate rich dump water (up to 4,100mg/1 SO4-). delta34S values range from -70/00 to + 7 degrees CDT in the inflow aquifers. The lake water is considered to be a mixture of different water bodies. The evaporation signature in the outflow aquifer suggests that the groundwater consists of 60% lake water. The nitrogen transfer is explained by 15N signature of ammonium. Sulfate reduction, perceptible in outflow and dump aquifer, cannot be proved within the mining lake by 34S and hydrochemistry. PMID- 29016216 TI - The Effect of an 15NH415NO3 Fertilization at Flowering on Growth and Nitrogen Fixation of White and Blue Lupins. AB - It is well established that legume species differ in intensity and duratio of nitrogen fixation during pod-filling. This was studied on new lines of white and blue lupins by comparing a solely nitrogen fixing and a treatment supplied with 15N-labelled fertizlier at flowering in pot experiments. Nitrogen application at flowering markedly incresed seed and total dry matter and seed and total N yield in white lumpins but remained without effect in blue lupins. simply replacing nitrogen fixation. Nitrogen fixation virtually ceased with the onset of pod filling in white lupins, causing a massive N-remobilization from vegetative plant parts. In contrast, the blue lupins fixed about 70% of total nitrogen fixation after flowering and displayed growth and net-N-assimilation of the vegetative plant parts. In both species the stems and pods especially supported seed N filling, indicated by a low% N and a high C/N ratio at ripeness. It is concluded that pod-filling proved to be a critical stage for the seed yield in grain legumes. Exploiting differences in nitrogen fixation in this growth stage, e.g., by breeding, needs more precise knowledge about the regulation mechanisms and source-sink relations. PMID- 29016217 TI - The Influence of Dung Amendments on Dissolved Organic Matter in Grassland Soil Leachates - Preliminary Results from a Lysimeter Study. AB - Understanding the carbon (C) cycle in grassland pasture systems requires more information about the fate of decomposing dung material within the soil. In this soil lysimeter study we successfully applied the natural 13C abundance labelling technique to trace dung-C within a temperate grassland soil. Dung was collected from beef steers fed on either maize (a C4 plant) or perennial ryegrass (a C3 plant) silages, and applied to a freely draining (C3) grassland soil. Leachates were collected from soil lysimeters (0-2.5) and (0-10 cm soil depth) to determine the organic carbon and 13C content of < 0.7 MUm filtered solution. Leachates were taken from (i) control, no dung added, (ii) C3 dung and (iii) C4 dung amended soil. Results showed that, (i) the addition of dung resulted in a tenfold increase in C lost from the lysimeters in drainage waters, (ii) up to 50% of the C present in the leachates was 'native' soil C and (iii) the application of dung produced a 'priming' effect. Further work is required to verify; (i) whether increased leaching of native C following dung application is a 'true priming' phenomenon, or merely the result of 'displacement' or 'pool substitution' of soil C, and (ii) the precise conditions and mechanisms under which organic amendments induce a true 'priming' effect in grassland and other agricultural soils. PMID- 29016218 TI - Impact of Resident-Performed Laparoscopic Appendectomy on Patient Outcomes and Safety. AB - BACKGROUND: Laparoscopic appendectomy is a training model for surgical residents to begin their surgical experience. However, there is concern about worse outcomes of surgery performed by inexperienced residents. We investigated surgical outcomes and patient safety in laparoscopic appendectomy performed by residents. MATERIALS AND METHODS: This is a retrospective cohort study of all consecutive patients operated on for acute appendicitis in a single tertiary hospital. A total of 971 patients who had laparoscopic appendectomy on an emergency basis between December 2010 and 2014 were analyzed. An attending, fellow, or resident with or without supervision performed the surgery. Surgical outcomes were compared among the four groups according to operator type. RESULTS: Laparoscopic appendectomy was successfully performed in 965 patients (99.4%) and was converted to open surgery in 6 patients. The conversion rate and incidence of complications were not different among the four groups. Operating time and length of hospital stay were significantly shorter in the attending group than in the fellow or resident groups, but did not differ between the fellow and resident groups. Unsupervised residents or fellows more often placed abdominal drainage than attending surgeons. Patients with drainage had a significantly longer hospital stay compared to patients without drainage (3.64 days versus 6.33 days, P <= .0001), as well as a longer mean time to gas passage (1.17 days versus 1.61 days, P <= .0001). CONCLUSIONS: Resident-performed laparoscopic appendectomy was safe, but was associated with significant prolongations in hospital stay and operation time. These differences were not clinically relevant with regard to complications. PMID- 29016219 TI - Emerging Zoonotic Influenza A Virus Detection in Myanmar: Surveillance Practices and Findings. AB - We describe 2-season, risk-based, virological surveillance for zoonotic avian influenza in Myanmar and report the first detection of influenza A subtypes H5N6 and H9N2 in Myanmar. The study focused mainly on the live bird markets in border townships, where illegal poultry importation from China usually takes place. The objective was to enhance early warning for low pathogenic avian influenza A(H7N9) incursion. The study followed the guidelines of the Food and Agriculture Organization (FAO) of the United Nations for influenza A(H7N9) surveillance in uninfected countries. The sampling strategy was risk-based at all sampling levels. Sample collection and laboratory analysis were carried out with the government of the Union of the Republic of Myanmar. Laboratory testing was according to a previously published FAO laboratory protocol and algorithm designed to detect a range of influenza A subtypes. Challenges to implementation are outlined. The study provided evidence that the H7N9 subtype had not entered Myanmar but detected other subtypes, including H5N6 and H9N2. Although there were logistical difficulties associated with nation-related issues, the results highlight the importance and feasibility of this risk-based active surveillance, which should be urgently established in other countries, especially those located at the east-southeast influenza epicenter. PMID- 29016220 TI - Considerations for Fueling an Endurance Athlete With Home Parenteral Nutrition. AB - The goal of clinicians managing nutrition support for patients with home parenteral nutrition (HPN) is to adapt nutrition needs to best serve the consumers, so they may have the best quality of life despite specialized nutrition needs. Some HPN consumers may desire to participate in endurance athletics, which will require special considerations. This review is intended to outline key nutrition differences in endurance athletes that a nutrition support team should consider when providing HPN. PMID- 29016221 TI - Apoptotic and Immunosuppressive Effects of Turmeric Paste on 7, 12 Di Methyl Benz (a) Anthracene Induced Skin Tumor Model of Wistar Rat. AB - Dietary components with potent anticancerous property are gaining attention as therapeutic agents due to low cost of therapy and minimal toxic effects. Turmeric is one such miracle spices of Indian and South Asian recipes with multiple medicinal properties. The anticarcinogenic properties of its active compound curcumin have been studied in detail. However, studies on the medicinal properties of crude turmeric used as dietary agents are lacking. Therefore, in this study we investigated the effects of dietary and topical crude turmeric paste on DMBA induced skin tumor of male Wistar rats. We observed the apoptotic effect of crude turmeric paste on DMBA induced tumor with depletion of T cells response. Our results demonstrated the significant expression of major pro apoptotic genes like caspase-2, 3, 8, 9, PARP, and p53 and down regulation of major pro-inflammatory (NF-kappaB) and pro-angiogenic factors and (VEGF) in turmeric treated tumor tissues. We also observed significant decrease in CD4+, CD8+, and Natural Killer cell population as compared to the untreated group. PMID- 29016223 TI - Impending Carotid Blowout From a Large Neck Mass Treated Sequentially With Endovascular Coil Embolization Followed by Induction Chemotherapy. PMID- 29016224 TI - Programmed Cell Death Ligand 1-Induced Coma From Diffuse Cerebritis. PMID- 29016222 TI - Misidentification of transthyretin and immunoglobulin variants by proteomics due to methyl lysine formation in formalin-fixed paraffin-embedded amyloid tissue. AB - Proteomics is becoming the de facto gold standard for identifying amyloid proteins and is now used routinely in a number of centres. The technique is compound class independent and offers the added ability to identify variant and modified proteins. We re-examined proteomics results from a number of formalin fixed paraffin-embedded amyloid samples, which were positive for transthyretin (TTR) by immunohistochemistry and proteomics, using the UniProt human protein database modified to include TTR variants. The amyloidogenic variant, V122I TTR, was incorrectly identified in 26/27 wild-type and non-V122I variant samples due to its close mass spectral similarity with the methyl lysine-modified WT peptide [126KMe]105-127 (p.[146 KMe]125-147) generated during formalin fixation. Similarly, the methyl lysine peptide, [50KMe]43-59, from immunoglobulin lambda light chain constant region was also misidentified as arising from a rare myeloma derived lambda variant V49I. These processing-derived modifications are not present in fresh cardiac tissue, non-fixed fat nor serum and do not materially affect the identification of amyloid proteins. They could result in the incorrect assignment of a variant, and this may have consequences for the immediate family who will require genetic counselling and potentially early clinical intervention. As proteomics becomes a routine clinical test for amyloidosis, it becomes important to be aware of potentially confounding issues such as formalin-mediated lysine methylation, and how these may influence diagnosis and possibly treatment. PMID- 29016226 TI - Trajectories of Injectable Cancer Drug Costs After Launch in the United States. AB - Purpose Cancer drug prices at launch have increased in recent years. It is unclear how individual drug prices change over time after launch and what market determinants influence these changes. We measured the price trajectories of a cohort of cancer drugs after their launch into the US market and assessed the influence of market structure on price changes. Methods We studied the changes in mean monthly costs for a cohort of 24 patented, injectable anticancer drugs that were approved by the US Food and Drug Administration between 1996 and 2012. To account for discounts and rebates, we used the average sales prices published by the Centers for Medicare and Medicaid Services. Costs were adjusted to US general and health-related inflation rates. For each drug, we calculated the cumulative and annual drug cost changes. We then used a multivariable regression model to evaluate the association between market and cost changes over time. Results With a mean follow-up period of 8 years, the mean percent change in cost for all drugs was +25% (range, -14% to +96%). After adjusting for inflation, the mean cost change was +18% (range, -16% to +59%). Rituximab and trastuzumab followed a similar pattern in cost increases over time, and the inflation-adjusted monthly costs rose since approval by 49% and 44%, respectively. New supplemental US Food and Drug Administration approvals, new off-label indications, and new competitors did not influence the annual cost change rates. Conclusion Anticancer drug costs may change substantially after launch. Regardless of competition or supplemental indications, there is a steady increase in costs of patented anticancer agents over time. New regulations may be needed to prevent additional increases in drug costs after launch. PMID- 29016225 TI - ASCO Value Framework Highlights the Relative Value of Treatment Options in Ovarian Cancer. AB - PURPOSE: The ASCO value framework allows physicians and patients to compare the relative value of novel treatments. Our aim was to assess the value of three frontline ovarian cancer therapies by using this framework. METHODS: From phase III, randomized controlled clinical trial (RCT) data, the net health benefits (NHBs) for three frontline ovarian cancer treatment options-dose-dense paclitaxel (Japanese Gynecologic Oncology Group study JGOG 3016), intraperitoneal (IP)/intravenous (IV) chemotherapy (Gynecologic Oncology Group [GOG] study GOG 172), and concurrent plus maintenance bevacizumab (GOG 218 and the Seventh International Collaborative Ovarian Neoplasm study [ICON7])-were calculated. The ASCO value framework calculates the NHB by using six criteria: clinical benefit, toxicity, tail of the curve, symptom palliation, treatment-free interval, and quality of life. Clinical benefit calculation uses ASCO-assigned importance weights for overall survival and progression-free survival. The maximum possible NHB points is 180. NHBs were presented alongside the drug-acquisition cost (DAC) of each therapy. A benefit-cost ratio of NHB points per additional cost was calculated. RESULTS: The NHB of dose-dense paclitaxel was 38, at an additional cost of $16 per cycle. IP cisplatin/IV + IP paclitaxel received 29 NHB points, at an additional cost of $1,629 per cycle. Concurrent plus maintenance bevacizumab received 24 NHB points, at an additional cost of $7,581 per cycle (GOG 218) or six NHB points ($3,790 per cycle; ICON7). The ratios of NHB points-to-dollar were as follows: dose-dense paclitaxel, 2.4 (highest); IP chemotherapy, 0.018; and bevacizumab, 0.003 (lowest). CONCLUSION: Using the ASCO value framework, we constructed value snapshots of three major frontline therapeutic options in ovarian cancer. Dose-dense paclitaxel provided the highest additional value when analysis accounted for NHB and cost. However, additional research is needed to include individual patient preferences and provide personalized value assessments. PMID- 29016227 TI - The Toxicity of Time. PMID- 29016228 TI - Pembrolizumab in Small-Cell Lung Cancer: In Search of the Best Biomarker. PMID- 29016229 TI - Hearing Loss. PMID- 29016230 TI - Antimicrobial Resistance and Genotypes of Campylobacter jejuni from Pig and Cattle Carcasses Isolated in Poland During 2009-2016. AB - Between 2009 and 2016, 317 and 529 swabs from cattle and pig carcasses, respectively, were collected all over Poland and tested for the presence of Campylobacter. Among 37 (11.7%) and 161 (30.4%) positive samples, 44 Campylobacter jejuni isolates were detected. A total of 29 different sequence types (STs) and 12 various clonal complexes were identified. Antimicrobial resistance revealed that 17 (38.6%) C. jejuni (10 from cattle and 7 from pig carcasses, respectively) were susceptible to all antimicrobials used in the study, whereas the remaining 27 (61.4%) isolates (12 from cattle and 15 from pigs, respectively) were resistant to at least one antimicrobial agent, mainly to quinolones (23 out of 44 isolates; 52.3%) and tetracyclines (14 strains; 31.8%). Only one isolate from cattle and two from pigs displayed resistance to streptomycin, and none of C. jejuni tested was resistant to erythromycin and gentamicin. All isolates with STs, ST356, ST443, ST464, ST658, ST2036, and ST6411, as well as some isolates belonging to ST257 and ST1947, were resistant to quinolones and tetracyclines. The results show that cattle and pigs may be a reservoir of quinolone and tetracycline resistant C. jejuni with STs which were previously isolated from humans with campylobacteriosis. PMID- 29016231 TI - Parenteral and Enteral Nutrition-From Hospital to Home: Will It Be Covered? AB - With scientific advances allowing for the safe delivery of parenteral and enteral nutrition in the home setting, challenges have risen with determining how this will be financially feasible for patients. In the United States, the government is one of the major payers for home parenteral and enteral nutrition (HPEN). Thus, it is important for nutrition providers to have an understanding of the Medicare criteria that must be met in order for these services to be covered. It can be difficult for clinicians to sift through these requirements and decipher for whom and when HPEN is covered. As our nutrition science knowledge and delivery continue to grow and evolve, potential barriers to this coverage may arise. This article provides background on those currently on HPEN in the United States, the current Medicare HPEN coverage criteria, and challenges we may face in the future. PMID- 29016232 TI - Algorithm for the management of asthma in pregnant women: a protocol to optimize processes in healthcare. AB - INTRODUCTION: Asthma is the most common chronic disease in pregnant women. Its evolution during pregnancy could improve, stay the same or worsen, especially in cases where there is a loss of clinical control. This can lead to maternal and fetal hypoxia with serious adverse perinatal outcomes. Areas covered: This article reviews physiological modifications in pregnancy, effects of pregnancy on asthma, and possible consequences on fetus development. Furthermore, it reviews evidence on assessment and both pharmacological and non-pharmacological management of asthma in pregnant and breastfeeding women as well as in acute exacerbations. Electronic databases, such as PUBMED, were searched for terms pregnan* or perinat* or obstet* and breastfeeding or asthma or wheeze, as well as a book published by the present authors. Expert commentary: A patient-centered multidisciplinary approach, where the respiratory specialists have a key role in assessing and achieving control, as well as the education interventions for self monitoring and adherence are at least as important as adequate pharmacological treatment. PMID- 29016233 TI - Metabolic Complications of Home Parenteral Nutrition. AB - Home parenteral nutrition (HPN) has benefited countless patients since its initiation almost 5 decades ago. Over time, HPN has been found to be associated with various complications, including metabolic disorders. Metabolic complications can be grouped into short-term (eg, fluid imbalance, electrolyte disturbances, glucose abnormalities) and long-term (eg, hepatobiliary disorders, metabolic bone disease, iron deficiency anemia, manganese toxicity) categories. There are a number of treatment options for each complication. It is important to evaluate the entire clinical picture prior to initiating an intervention and use evidence-based interventions when available. A dedicated multidisciplinary team is best suited to prevent and manage complications when they are identified. PMID- 29016235 TI - Telemedicine Support Groups for Home Parenteral Nutrition Users. AB - Patients receiving home parenteral nutrition (HPN), a life-sustaining intravenous (IV) infusion that provides nourishment and hydration to patients with short gut or inflammatory bowel diseases, are often isolated and not in visual contact with peers or health providers. One completed clinical trial (Clinical Trials.gov NCT0190028) and 1 ongoing clinical trial (Clinical Trials.gov NCT02987569) are evaluating a mobile videoconferencing-delivered support group intervention for patients on HPN and their caregivers. This home-based telemedicine intervention uses encrypted tablet-based videoconferencing to connect multiple families in real time. The twice-daily IV regimen is challenging for patients who may experience infusion catheter-related bloodstream infections, difficulties with fatigue, loss of sleep, depressive disorders, and worry over the potential life threatening side effects and the expenses of this therapy. Using secure telemedicine, the facilitated support group intervention aims to enhance HPN home care, daily functioning, and quality of life. The authors provide the rationale for the telemedicine approach with HPN users and caregivers. They provide "how to" information about the content and process of the facilitated support group sessions via secure videoconferencing. They share lessons learned from the ongoing evaluation of the telemedicine approach. PMID- 29016234 TI - Limited Evidence Suggests a Protective Association Between Oral Contraceptive Pill Use and Anterior Cruciate Ligament Injuries in Females: A Systematic Review. AB - CONTEXT: Female athletes aged 14 to 18 years are at particular risk for anterior cruciate ligament (ACL) injuries. Hormonal factors are thought to predispose them to this injury. Oral contraceptive pills (OCPs) might reduce ACL injury risk, although the literature appears controversial. OBJECTIVE: To evaluate the association between OCP use and ACL injuries in women. The secondary objective was to determine the rates of ACL injuries in the pre- and postovulatory phases of the menstrual cycle in OCP and non-OCP (NOCP) users. DATA SOURCES: Searches were performed across 4 reference databases (PubMed, CINAHL, Embase, Cochrane), abstracts from 6 specialty societies, ClinicalTrials.gov , and reference lists of relevant papers. STUDY SELECTION: We included studies investigating the association between OCP use and ACL injuries in females of any age or the distribution of ACL injuries across the menstrual cycle in OCP and NOCP users. STUDY DESIGN: Systematic review. LEVEL OF EVIDENCE: Level 3. DATA EXTRACTION: Data regarding study design, population characteristics, OCP details, outcome definitions, analytic methods, and results were extracted from the included studies. The methodological quality of each study was assessed using the Newcastle-Ottawa scale. RESULTS: The search yielded 1305 citations, of which 7 retrospective observational studies met the inclusion criteria. Two large case control studies with higher methodological quality suggested that OCP use may reduce the risk of sustaining an ACL injury. Five comparative studies examining injury distribution across the menstrual cycle in OCP and NOCP users had conflicting findings, were heterogeneous, and were limited by low methodological quality. CONCLUSION: The evidence suggests OCP use may reduce the risk of ACL injury; however, no conclusions can be drawn regarding differences in risk of ACL injuries between OCP and NOCP users across the menstrual cycle. Studies were limited by small sample sizes, heterogeneity, and methodological concerns. PMID- 29016236 TI - Effects of 445-nm Diode Laser-Assisted Debonding of Self-Ligating Ceramic Brackets on Shear Bond Strength. AB - OBJECTIVE: The aim of this study was to measure the effect of irradiation with a novel 445-nm diode laser on the shear bond strength (SBS) of ceramic brackets before debonding. MATERIALS AND METHODS: Thirty ceramic brackets (In-Ovation(r) C, GAC) were bonded in standard manner to the planed and polished buccal enamel surfaces of 30 caries-free human third molars. Each tooth was randomly allocated to the laser or control group, with 15 samples per group. The brackets in the laser group were irradiated with the diode laser (SIROLaser Blue(r); Sirona) on three sides of the bracket bases for 5 sec each (lateral-coronal-lateral, a total of 15 sec) immediately before debonding. SBS values were measured for the laser group and control group. To assess the adhesive remnant index (ARI) and the degree of enamel fractures, micrographs of the enamel surface were taken with 10 fold magnification after debonding. RESULTS: The SBS values were significantly lower statistically in the laser group in comparison with the control group (p < 0.05). The ARI scores were also significantly lower statistically in the laser group in comparison with the control group (p < 0.05). No bracket fractures or enamel fractures occurred in either group after debonding. CONCLUSIONS: Irradiation of ceramic brackets with the novel diode laser before debonding significantly reduces the SBS values. This is of clinical importance, as it means that the risk of damage to the teeth, bracket fractures, and the overall treatment time can be reduced. PMID- 29016237 TI - Actual competence, rather than perceived competence, is a better predictor of physical activity in children aged 6-9 years. AB - There is a limited understanding about the relative importance of perceived and actual competence on emergent physical activity levels in children and whether there is a difference in their development and strength between boys and girls. This study used a single-cohort, multiple age group design to monitor physical activity, actual motor competence (AMC) and perceived competence (PC) on four occasions over 18 months in 6-to 9-year-old boys and girls (N = 201). Physical activity was measured by 7-day daily step counts (pedometer) and activity diary. AMC was assessed by mastery of skill criteria for 4 motor skills; run, overhand throw, standing broad jump, and line walk. PC was measured with the Self Description Questionnaire-I. Linear Mixed Model analysis revealed that AMC, Gender and School significantly impacted physical activity levels longitudinally in these children. AMC made a greater contribution (9-30%) to physical activity levels than PC (0-5%), and at an earlier age in boys (7 years) than girls (9 years). The need to acknowledge these developing distinctions in considering emergent physical activity levels has important implications for childhood learning environments and physical activity interventions. PMID- 29016238 TI - Outstanding Challenges in Scientific Research on Mindfulness and Meditation. AB - Van Dam et al. raise a number of critical issues in contemporary research on mindfulness and meditation and offer a prescriptive agenda for future work in this area. While we agree with all of the key points made in their article, there are a number of important issues omitted that are central to a comprehensive agenda for future research in this area. This commentary highlights five key points: (a) Many of the key methodological issues the article raises are not specific to research on mindfulness; (b) contemplative practices are varied, and the landscape of modern scientific research has evolved to focus almost exclusively on one or two types of practice to the exclusion of other forms of practice that are potentially highly impactful; PMID- 29016239 TI - Early distinction between shame and guilt processing in an interpersonal context. AB - Shame and guilt have been compared in many behavioral and functional magnetic resonance imaging studies. However, the time course of shame and guilt processing remains unknown. We conducted an event-related potential (ERP) study to investigate the temporal dynamics of shame and guilt in an interpersonal context. Behaviorally, participants reported "shame" when their wrong advice was correctly rejected by a confederate, whereas reported "guilt" when their wrong advice resulted in economic loss of a confederate. The ERP results showed significant difference between the shame and guilt conditions in the early P2 component (140 220 ms) over the frontal region and the alpha oscillations (240-1000 ms) over the parietal region. No significant difference was found between the shame and guilt conditions in the N2, P3, and theta oscillations. These results supported previous findings that shame compared to guilt involves more self-referential processing, whereas guilt compared to shame involves more empathetic processing, and provided evidence that the distinction between shame and guilt could occur in an early stage. PMID- 29016241 TI - Analysing a cycling grand tour: Can we monitor fatigue with intensity or load ratios? AB - This study evaluated the changes in ratios of different intensity (rating of perceived exertion; RPE, heart rate; HR, power output; PO) and load measures (session-RPE; sRPE, individualized TRIMP; iTRIMP, Training Stress ScoreTM; TSS) in professional cyclists. RPE, PO and HR data was collected from twelve professional cyclists (VO2max 75 +/- 6 ml?min?kg-1) during a two-week baseline training period and during two cycling Grand Tours. Subjective:objective intensity (RPE:HR, RPE:PO) and load (sRPE:iTRIMP, sRPE:TSS) ratios and external:internal intensity (PO:HR) and load (TSS:iTRIMP) ratios were calculated for every session. Moderate to large increases in the RPE:HR, RPE:PO and sRPE:TSS ratios (d = 0.79-1.79) and small increases in the PO:HR and sRPE:iTRIMP ratio (d = 0.21-0.41) were observed during Grand Tours compared to baseline training data. Differences in the TSS:iTRIMP ratio were trivial to small (d = 0.03-0.27). Small to moderate week-to-week changes (d = 0.21-0.63) in the PO:HR, RPE:PO, RPE:HR, TSS:iTRIMP, sRPE:iTRIMP and sRPE:TSS were observed during the Grand Tour. Concluding, this study shows the value of using ratios of intensity and load measures in monitoring cyclists. Increases in ratios could reflect progressive fatigue that is not readily detected by changes in solitary intensity/load measures. PMID- 29016240 TI - Reiterated Concerns and Further Challenges for Mindfulness and Meditation Research: A Reply to Davidson and Dahl. AB - In response to our article, Davidson and Dahl offer commentary and advice regarding additional topics crucial to a comprehensive prescriptive agenda for future research on mindfulness and meditation. Their commentary raises further challenges and provides an important complement to our article. More consideration of these issues is especially welcome because limited space precluded us from addressing all relevant topics. While we agree with many of Davidson and Dahl's suggestions, the present reply (a) highlights reasons why the concerns we expressed are still especially germane to mindfulness and meditation research (even though those concerns may not be entirely unique) and (b) gives more context to other issues posed by them. We discuss special characteristics of individuals who participate in mindfulness and meditation research and focus on the vulnerability of this field inherent in its relative youthfulness compared to other more mature scientific disciplines. Moreover, our reply highlights the serious consequences of adverse experiences suffered by a significant subset of individuals during mindfulness and other contemplative practices. We also scrutinize common contemporary applications of mindfulness and meditation to illness, and some caveats are introduced regarding mobile technologies for guidance of contemplative practices. PMID- 29016242 TI - Early Predictors of Abscess Development after Perforated Pediatric Appendicitis. AB - BACKGROUND: Approximately one-third of children with appendicitis present with advanced disease or perforation. Whereas this increases the risk for post operative complications and re-admission, it is not yet possible to predict early on who will develop an abdominal abscess. We sought to identify specific risk factors for this complication, in an attempt to streamline post-operative care. PATIENTS AND METHODS: We reviewed the records of all cases of perforated appendicitis over a 12-month period at a tertiary children's hospital. All patients who developed an abscess despite treatment minimum of seven days of antibiotic therapy were identified. Patients who presented or were re-admitted with an abscess were excluded from analysis. Records were reviewed for demographics, laboratory results, progression of oral intake, and vital signs. RESULTS: Of 273 patients with appendicitis, we identified 59 cases of perforated appendicitis. Fifteen patients were excluded. Eight of the remaining 44 patients (18.2%) developed an abscess during their initial admission. Their mean length of stay was longer than that of patients without an abscess (13.4 +/- 7.1 vs. 6.9 +/ 1.9 d, p < 0.0001). Gender, leukocytosis, or diarrhea at presentation, maximum temperature on post-operative day 3, and maximum heart rate on post-operative day 3 were not statistically different. Diet progression was different between the two groups: none of the 21 patients who were tolerating a regular diet by post operative day 3 developed an abscess, compared with 8 of the 23 patients who were not yet eating a regular diet on post-operative day 3 (p < 0.01). Late leukocytosis also correlated with the presence of an abscess: 7 of the 8 patients with an abscess had persistent leukocytosis at days 5 through 7, compared with 3 of 31 patients without abscess (p < 0.05). An ultrasound was obtained for these 3 patients and proved normal. CONCLUSIONS: Tolerating a regular diet three days after appendectomy for perforated appendicitis decreased the likelihood of a post operative abscess. No other parameter was predictive of this complication early in the post-operative period. If confirmed in a larger prospective study, this finding may help decrease the length of stay for low-risk patients, and identify abscesses in high-risk patients in a timely fashion. PMID- 29016243 TI - Safety and Tolerability of Laser Hair Depilation in Pilonidal Disease: A Pilot Study. AB - BACKGROUND: Pilonidal disease is a common and painful disorder that can be challenging to manage. Recurrent surgical treatment is often warranted and may result in significant morbidity, with reported wound complication rates as high as 30%. Laser hair depilation of the natal cleft may decrease the incidence of recurrence. The purpose of this study was to assess the safety and tolerability of laser hair depilation in adolescents with pilonidal disease. METHODS: We performed a prospective, single arm, pilot trial of laser hair depilation to the natal cleft in 13 patients with pilonidal disease. Each patient received an outpatient laser depilation treatment every four weeks with a goal of five total treatments. Follow-up tolerability was measured after each treatment by obtaining Likert scale, patient-reported, pain scores immediately after laser treatment and every six hours post-treatment, for the first 24 hours. Consistent pain scores <4 were used as a proxy for tolerability. The primary end point was tolerability and safety, defined as pain scores consistently <4 and no deep second-degree burns during the 24-hour post-treatment period. The secondary end point was disease recurrence at one year. RESULTS: Thirteen patients were enrolled with 12 patients completing five laser depilation treatment sessions and one patient completing only four. There was 100% tolerability of treatments with no occurrence of second degree burns. No patient was unable to complete a treatment session because of discomfort. Significantly diminished hair growth was noted after three treatments. All 13 patients were recurrence-free at a median follow-up of 13 months post-treatment initiation. CONCLUSIONS: Laser hair depilation is safe and well tolerated in adolescents with pilonidal disease and may be effective at decreasing pilonidal disease recurrence. A prospective randomized controlled trial is planned to determine effectiveness of laser hair depilation compared with chemical/mechanical depilation methods in preventing pilonidal disease recurrence. PMID- 29016244 TI - Measuring limitations in activities of daily living: a population-based validation of a short questionnaire. AB - PURPOSE: A newly developed questionnaire assessing limitations in activity of daily living (LADL-Q) that should improve assessment of LADL is tested in a large population-based validation study. METHODS: This survey was paper-based. Overall, 16,634 individuals who were representative of the working population in the German-speaking part of Switzerland participated in the study. Item analysis was used the final version of the LADL-Q to four items per subscale that correspond to potential problems in three body regions (back and neck, upper extremities, lower extremities). Analysis included tests for reliability, internal consistency, dimensionality and convergent validity. RESULTS: Test-retest reliability coefficients after 2 weeks ranged from 0.82 to 0.99 (Mdn = 0.87), with no item having a coefficient below 0.60. The median item-total coefficients ranged between moderate and good. Correlation coefficients between LADL-Q subscales and three validated clinical instruments (Western Ontario and McMaster Universities osteoarthritis index, shoulder pain disability index, Oswestry) ranged from 0.63 to 0.81. In structural equation modeling the three subscales were significantly related with two important outcomes in occupational rehabilitation: self-reported general health and daily task performance. CONCLUSION: The new LADL-Q is a brief, reliable and valid tool for assessment of LADL in studies on musculoskeletal health. PMID- 29016245 TI - Effect of a high dosage opioid prior authorization policy on prescription opioid use, misuse, and overdose outcomes. AB - BACKGROUND: High dosage opioid use is a risk factor for opioid-related overdose commonly cited in guidelines, recommendations, and policies. In 2012, the Oregon Medicaid program developed a prior authorization policy for opioid prescriptions above 120 mg per day morphine equivalent dose (MED). This study aimed to evaluate the effects of that policy on utilization, prescribing patterns, and health outcomes. METHODS: Using administrative claims data from Oregon and a control state (Colorado) between 2011 and 2013, difference-in-differences analyses were used to examine changes in utilization, measures of high risk opioid use, and overdose after introduction of the policy. Opioid utilization in a cohort of individuals who were high dosage opioid users before the policy was also evaluated. RESULTS: Following implementation of Oregon's high dosage policy, the monthly probability of an opioid fill over 120 mg MED declined significantly by 1.7 percentage points (95% confidence interval [CI]; -2.0% to -1.4%), whereas it increased significantly by 1.0 percentage points (95% CI 0.4% to 1.7%) for opioid fills < 61 mg MED. Fills of medications used to treat neuropathic pain also increased by 1.2 percentage points (95% CI 0.7% to 1.8%). The monthly probability of multiple pharmacy use declined by 0.1 percentage points (-0.2% to -0.0) following the prior authorization, but there were no significant changes in ED encounters or hospitalizations for opioid overdose. Among individuals who were using a high dosage opioid before the policy, there was a 20.3 percentage point (95% CI -15.3% to -25.3%) decline in estimated probability of having a high dosage fill after the policy. CONCLUSIONS: Oregon's prior authorization policy was effective at reducing high dosage opioid prescriptions. While multiple pharmacy use also declined, no changes in opioid overdose were observed. PMID- 29016247 TI - FROM THE EDITOR. PMID- 29016246 TI - Cognitive Dysfunction and Single Nucleotide Polymorphisms in Hepatitis C Virus Infected Persons: A Systematic Review. AB - The aim of this study was to realize a systematic review to identify data reported in the literature involving people infected by hepatitis C virus (HCV) with cognitive dysfunctions and single nucleotide polymorphisms (SNPs). The research was realized in six databases and the selection of studies was performed in two stages. Initially, we searched indexed articles from the following electronic databases: SciELO, MEDLINE, PubMed, HighWire, LILACS, and ScienceDirect. Then the articles were completely read and those that did not meet the eligibility criteria were excluded. Therefore, 5,669 articles were obtained and, of these, 25 were selected. Finally, one article involving people with HCV and cognitive impairment was included in the review. The frequency of the APOE-E4 allele in people with HCV and mild liver disease was significantly lower in those with work memory impairment (p = 0.003) and attention (p = 0.008). This situation differs from other studies that showed an association between E4 allele high frequency and cognitive decline. Thus, studies with larger samples involving people with HCV, cognitive alterations, and SNPs are necessary, in view of the lack of this theme in the literature and the divergences in the findings. PMID- 29016250 TI - Scrutinizing Homophobia: A Model of Perception of Homosexuals in Russia. AB - We aimed to develop and validate a model of associations of perceived threat of homosexuals with lay beliefs about causes of homosexuality, group entitativity of homosexuals, approval of social action strategies targeting homosexuals, and support for their rights using original Russian-language measures. We tested the model in two samples of social network users (n = 1,007) and student respondents (n = 292) using structural equation modeling and path analysis. Attribution of homosexuality to social causes was a positive predictor of perceived threat of homosexuals, whereas biological causes showed an inverse effect. Perceived threat predicted approval of discriminatory strategies targeting homosexuals and lack of support for their rights and fully mediated the effects of causal beliefs on these variables. Group entitativity of homosexuals was a positive predictor of perceived threat and a significant moderator of its effects on support for punishment and medical treatment of homosexuals. We discuss the findings with reference to the Russian social context. PMID- 29016249 TI - Factors associated with obesity and metabolic syndrome in ageing black South African women. AB - BACKGROUND: The incidence of obesity and related metabolic diseases is high and increasing in sub-Saharan African women. Evidence on the determinants of these diseases is limited, particularly in black South African women. OBJECTIVE: This PhD review attempts to understand the determinants of obesity and metabolic syndrome (MetS) in a population of ageing urban-dwelling black South African women. METHODS: Drawing on the longitudinal Birth-to-Twenty-Plus cohort, data were collected in 2002/03 and 2012/13, including information on behavioural factors (smoking, sitting time, physical activity, smokeless tobacco, and alcohol consumption), body-size perception, body composition (measures of adiposity and lean mass), blood pressure, and cardiometabolic biomarkers (lipid profile, fasting insulin, fasting blood glucose, insulin resistance, leptin, and adiponectin). RESULTS: The prevalence of obesity and related cardiovascular disease risk was high and increased significantly over the 10 year period. Despite most of the study population being physically active, sitting time was high and associated with elevated blood pressure and hypertriglyceridaemia. Two groups of people were observed, those who were happy and those who were unhappy with their body size. In logistic regression analysis, the risk of MetS was lowered by abdominal subcutaneous adipose tissue and adiponectin, and increased by age, smoking, truncal lean mass, and insulin resistance. CONCLUSIONS: Obesity was confirmed to be increasing in black South African women, despite most women being sufficiently active according to guidelines of >=150 min activity/week. Nevertheless, the contribution of sitting time to poor health outcomes is evident in this study population and must be addressed, particularly in women who are content with being obese. The novel finding of the effects of abdominal subcutaneous tissue and truncal lean mass with MetS requires further investigation. The protective effect of adiponectin against MetS is an important finding which highlights the novel interaction between adiposity and cardiometabolic diseases in black South African women. PMID- 29016252 TI - Nursing Facility and Home and Community Based Service Need Criteria in the United States. AB - Over the past two decades states have expanded the delivery of long term care from institutions to the home and community. Although state Medicaid need criteria for the home and community based services (HCBS) waiver program must be equivalent to those for nursing facility (NF) criteria, other screening procedures for these services are not specified. This study examined variations in need criteria, methods for determining need, and assessment forms for NF and HCBS across the states, and identified whether these procedures were more stringent for HCBS than for NFs. The NF minimum need criteria was most often (31 states) based on a combination of nursing, medical, functional, or other psychosocial criteria, 10 states used nursing criteria, and 10 states used limitations in functional activities criteria. The method used for determining need for NF was based on explicit criteria in 25 states, point systems in seven states, and 19 states used guidelines that allowed for judgment by those conducting the assessment. The average length of a NF assessment form was six and one-half pages, which was four pages shorter than the average HCBS form. Within some states the HCBS waivers have higher need criteria, more comprehensive need determination, and longer assessment forms than NFs. Wide variability in screening procedures creates potential inequities to LTC services across the states. Within states, more restrictive screening procedures for HCBS than for NF may limit access to community based long term care. PMID- 29016251 TI - Addressing the problem of obesity and associated cardiometabolic risk in black South African women - time for action! AB - The PhD thesis of Gradidge, entitled 'Factors associated with obesity and metabolic syndrome in an ageing cohort of black women living in Soweto, Johannesburg (Study of Women in and Entering Endocrine Transition [SWEET])', attempts to understand the determinants of obesity and metabolic syndrome (MetS) in a population of urban-dwelling black South African women. A conceptual framework is presented, which positions obesity as the central risk factor for MetS, and includes the possible influence of socioeconomic status, lifestyle behaviours and body size perceptions, as key determinants of obesity. This commentary focuses on the two main findings of Gradidge's thesis, namely, (i) physical activity and sedentary behaviour, and (ii) body composition and adiponectin, as risk factors for obesity and MetS in black South African women. Despite a high prevalence of obesity (48%), Gradidge showed that 75% of the women taking part in the study were meeting WHO guidelines on physical activity. This commentary suggests that the relationship between physical activity and cardiometabolic risk may be confounded by socioeconomic status. Alternatively, the intensity, and not necessarily the volume, of activity, as well as high rates of sedentary behaviour are posited as important determinants of obesity and MetS in black South African women. Accordingly, this commentary questions the veracity of the WHO guidelines on physical activity in developing countries, where most women meet the guidelines but have very poor cardiorespiratory fitness, are obese and are at high risk of MetS. Gradidge also showed that the most consistent and significant correlate of MetS in this cohort of middle-aged women was low serum levels of adiponectin. This commentary highlights various lifestyle interventions that have been shown to increase adiponectin levels. Finally, the importance of immediate action to address the problem of obesity and MetS is emphasised. PMID- 29016253 TI - 'You Need Them to Know Your Ways': Service Users' Views About Valued Dimensions of Home Care. AB - Dominant approaches to evaluating supportive home care tend to be 'top-down,' undertaken from the vantage points of funding bodies and professionals, rather than from the perspectives of service users. A longitudinal, qualitative study of women receiving home care in Ontario, Canada explored their accounts of what constitutes good and responsive care. Participants identified four dimensions of care that they particularly valued: Minimized exposure, being known, staying in charge, and being able to speak. The implications of their perspectives for home care practice, evaluation and organization are discussed. PMID- 29016254 TI - Using a Focus Group Methodology to Gain Input from People Who Use Home and Community Based Services. AB - Gaining input from people who use home and community based services is important for determining the usefulness of services and clarifying future direction. Many of the commonly used methods have drawbacks when gaining input from people served. The current paper describes a focus group process that has been used to gain input from people who use home and community based services. The focus group process included designing the focus groups, their implementation, and feedback to stakeholders. Insights are presented and have implications for home and community based administrators, providers, and health care specialists. PMID- 29016255 TI - A Study of Reliability and Burden of Home Health Assessment Using OASIS. AB - The Outcome and Assessment Information Set (OASIS) is used for outcome reporting, quality improvement, and case mix adjustment of per-episode payment for home health care. The research described here addresses interrater reliability of OASIS items and compares clinician time required to complete patient assessment with and without OASIS. Interrater reliability for OASIS data items was estimated using independent assessments by two clinicians for a sample of 66 patients. Incremental assessment time due to OASIS was estimated using interview data from two agency-matched groups of clinical care providers-one group who used OASIS in the assessment and a second group whose assessment did not include OASIS items. Interrater reliability is excellent (kappa > .80) for many OASIS items and substantial (kappa > 0.60) for most items. The reported time required to complete an assessment with OASIS did not differ from the time required for a comparable assessment without OASIS. The results of this study are being used to guide developmental efforts to improve OASIS items. They can also be informative to home health care agencies when interpreting OASIS-based outcome and case mix reports. PMID- 29016256 TI - The Impact of the Senior Companion Program on Quality of Life Outcomes for Frail Older Adults and Their Families. AB - The Senior Companion Quality of Care Evaluation assessed the impact of a federally funded senior volunteer program on quality of life outcomes for frail clients and their families. Telephone interviews were conducted with national samples of frail Senior Companion Program (SCP) clients, family members, and comparison group participants. Multivariate procedures were used to examine study outcomes. SCP clients benefited significantly from the program at 3 months, though fewer positive effects were reported at 9 months. SCP family members benefited only modestly from the program. The SCP has been considered a low-cost way of matching the needs of community-based frail older adults with the skills of senior volunteers. Now, it has been shown to have some favorable effects on client well-being. These findings may take on greater significance given the desire to expand the SCP through the USA Freedom Corps Initiative. PMID- 29016258 TI - Issues in Mental Health Nursing. PMID- 29016257 TI - Intentional Switching Between Bimanual Coordination Patterns. AB - Previous theoretical and empirical work indicates that intentional changes in a bimanual coordination pattern depends on the stability of the bimanual coordination pattern (Kelso, Schotz, & Schoner, 1988; Scholz & Kelso, 1990). The present experiments retest this notion when online Lissajous displays are provided. Switching to and from in-phase and antiphase and to and from 90 degrees and 270 degrees were tested in Experiment 1. Participants were able to very effectively produce the 180 degrees , 90 degrees , and 270 degrees coordination patterns although performance of the in-phase coordination task was even more stable. The data indicated that switching to in-phase from antiphase was more rapid than vice versa and that switching times between 90 degrees to 270 degrees were similar. Experiment 2 investigated switching between 1:2 and 2:1 bimanual coordination patterns. The results indicated that switching time was similar between the 2:1 and 1:2 coordination tasks and that increases in stability over practice resulted in additional decreases in switching times. This provides additional evidence that the attractor landscape is fundamentally different dependent on the type of information provided the performer. What remains to be done is to reconcile these results with the various theories/perspectives currently used to describe and explain bimanual coordination. PMID- 29016260 TI - Antidepressants for Treating Depression in Adults with End-stage Kidney Disease with Dialysis. PMID- 29016261 TI - "Sound Health: Music and the Mind": The New Initiative of the National Institutes of Health and National Endowment for the Arts. PMID- 29016263 TI - A complete dynamic model of primary sedimentation. AB - A dynamic mathematical model for the primary clarifier of a wastewater treatment plant is described, which is represented by a general tanks-in-series model, to simulate insufficient mixing. The model quantifies successfully the diurnal response of both the suspended and dissolved species. It is general enough, so that the values of the parameters can be replaced with those applicable to a specific case. The model was verified through data from the Biological Centre of Metamorfosi, in Athens, Greece, and can be used to assist in the design of new plants or in the analysis and output predictions of existing ones. PMID- 29016262 TI - Association of 5-HTTLPR Polymorphism with the Nursing Diagnoses and the Achievement of Nursing Outcomes in Patients with Major Depression. AB - The aim of this study is to investigate whether a 44-base-pair insertion/deletion polymorphism in the upstream regulatory region of the serotonin transporter gene (5-HTTLPR) is associated with the nursing diagnoses and the achievement of the desired nursing outcomes in inpatients with major depression. Thirty five patients were evaluated. The nursing diagnoses of risk for suicide and imbalanced nutrition are reported less often in homozygotes of the high-expressing gene (LA). Carriers of the low-expressing genes (LG or S) have a worse response to interventions which aim to increase low self-esteem, indicating that they may need more intensive care in order to achieve the desired outcome. Genetics in psychiatric nursing could help refine personalized care, however further studies with large sample sizes and multiple gene evaluations are needed. PMID- 29016264 TI - Effect of stormwater runoff on metal distribution in the sediment and interstitial waters of an urban river. AB - Metals were analysed in the interstitial waters and sediments of an urban river, receiving stormwater and combined sewer overflow, over a two month period and interpreted in terms of rain events. Depth profiles for metal concentrations showed the highest interstitial water concentrations in samples with low sedimentary organic material. Storm events can both resuspend sediments and associated metal-rich interstitial waters and alter the metal distribution between interstitial water and sediment. Metal profiles downstream of a combined sewer overflow showed elevated interstitial water concentrations compared to an upstream site. Downstream sites also reveal evidence of metal burial and resuspension processes during and between wet periods. PMID- 29016265 TI - Toxic effects of dredged sediments of Hong Kong coastal waters on clams. AB - The present project is an attempt to study the effects of the sediments collected from various sites on the survival of three indigenous bivalves (Circe scripta, Gafrarium fumidum and Tapes philippinarium). The preliminary trial revealed that T. philippinarium was more sensitive than the other two species in response to the dredged sediment collected from the pollution blackspot: Yau Ma Tei typhoon shelter. A subsequent experiment used T. philippinarium to assess the toxicity of sediments under different dissolved oxygen regimes (7.8, 8.0 and 8.2 mg L-1). Significant correlations (p<0.05) were noted between the mortality rates of the test animals and the total nitrogen and ammonia contents in the seawater. PMID- 29016266 TI - Retention capacity of dry soils for NAPLs. AB - Retention capacity values were measured in the laboratory for three non-aqueous phase liquids (NAPLs), PCE, TCE and gasoline. The dry soils studied were sandy loam, clay, organic top soil and peat moss. For the conditions tested, it was determined that the retention capacity increased with an increase in the NAPL's density and the soil's porosity and a decrease in the soil bulk density. The largest observed retention capacity was for peat moss and PCE at approximately 7 gg-1. A simple model was developed to correlate the findings and allow estimation of the retention capacity values for different soils and NAPLs. Applications of the retention capacity model are illustrated with typical examples. PMID- 29016267 TI - Treatment of variable and intermittently flowing wastewaters. AB - The biological treatment of wastewaters originating from hotels and residential areas of seasonal use, flowing intermittently, is difficult due to the fact that bacteria cannot survive during periods of no-flow. An investigation has been conducted in order to develop a system which will be able to overcome the difficulties encountered. After a long investigation the following system has given satisfactory results. The wastewater was taken initially into an aeration tank operating as a sequential batch reactor. Waste was taken after the sedimentation phase of the reactor into a coagulation-flocculation tank where it was treated by chemical means, and then settled in order to separate the floes. When the population of bacteria in the aeration tank reached the required level, the physico-chemical treatment was terminated and the tank used for chemical treatment has been started to be used as an equalization tank while the aeration and sedimentation tanks have been used as an activated sludge unit. This system has been proved to be a satisfactory method for the above mentioned wastes. PMID- 29016268 TI - Insoluble biodegradative potential of the venice lagoon. AB - The sediment phase of the Venice lagoon within an area of shallow water, the Palude della Rosa, was studied and three insoluble enzymatic activities (cellulase, phosphatase and urease) were found to be linked to the inorganic phase. These immobilized enzymes were more resistant to environmental changes, even extreme ones, compared to their soluble counterparts. The evolution of their activity with pH, temperature and seasonal variation was investigated. While pH related activities showed the usual behaviour, the resistance to temperature was extremely high and seasonal variation was dependent on immobilization. These enzymatic activities could be used as a diagnostic factor for the ecosystem, since their presence is related to the nature of the waste products. PMID- 29016269 TI - Adsorption of phosphate onto pumice powder. AB - The adsorption of phosphate onto pumice powder was studied as a function of time, pH and total dissolved phosphate concentration. Phosphate removal efficiency was found to be more than 80%. The adsorption reaction was considered to be a reversible reaction at which a forward first order reaction is opposed by a second order reaction. The reaction rate constant k was calculated as 28.31 +/- 2.37*10-3. Phosphate adsorption data had a good fit to Freundlich adsorption isotherm at pH 3, 5, 7 and 9. In the presence of NaCl, Na2SO4, MgClg, CaCl2, NaF and urea, the adsorption was slightly affected. PMID- 29016270 TI - Characteristics, quantity and thickening of sludge from a partial lime softening plant. AB - Water softening using the lime process leads to the production of large quantities of sludge. Determining the quantity of sludge produced and its dewatering properties is very important in the design, operation and cost of the subsequent sludge handling facilities. Presented are the results of a study on the partial softening process of a 200 MLD water treatment plant in Edmonton, Alberta, Canada. The plant currently softens surface water from a hardness of 180 mg l-1 as CaCO3 to 110 mg l-1 as CaCO3 in a solid contact clarifier. The sludge is gravity thickened prior to centrifugation after which the sludge is hauled off site for disposal. Results from the study were used to assess the current operation as well as to provide required information for the facilities needs in view of a proposed expansion to double the current production. Results from measured data indicate that the sludge production can be established by a mass balance, chemical (Ca++, Mg++) balance or stoichiometric calculations. Bulk density of the lime sludge was correlated to the sludge solids content by a quadratic expression. Similarly, the settling velocities at various sludge densities were well correlated. The total organic carbon (TOC) content of the sludge was found to be unusually high. Analysis of operating records found that by maintaining a proper sludge blowdown interval and duration, the sludge withdrawal can be optimized for solid contact clarifiers with intermittent sludge withdrawal. PMID- 29016271 TI - Removal of transition metals from motor oil using ion exchange resins. AB - A variety of polystyrene-divinylbenzene resins functionalized with such groups as SO3H, N(CH2COOH)2, and SH were tested in the slurry batch mode for the removal of transition metals from used motor oil. Naturally occurring materials such as coal and clay were also tested. The N(CH2COOH)2 resin (Chelex 100) and the SH resin (Duolite GT-73) were found effective removing on the average 70 and 78% of metals such as Fe, Pb, Zn, Cu, Ni, and Mn, respectively. About 700 mLs of hot oil when pumped through a 37 * 0.9 cm column packed with the Duolite resin could be demetalized to the extent of about 80% if the column was first washed with hexane. PMID- 29016272 TI - Transplanted aquatic mosses and freshwater mussels to investigate the trace metal contamination in the rivers Meurthe and Plaine, France. AB - Aquatic mosses Cinclidotus nigricans and freshwater mussels Dreissena polymorpha were transferred at eight monitoring sites along the rivers Meurthe and Plaine (northeastern France) for a biological assessment of the trace metal contamination. Autochthonous Fontinalis antipyretica mosses were collected at the end of the experiment. The major contaminants detected in the organisms were Cr, Ni, Pb and Zn. A comparison between the native and the introduced bryophytes showed that the transfer technique was preferable to assess the recent pollution situation. In the case of the transplanted mosses, high initial levels of strongly bound Pb and Zn prevented an accurate assessment of the contamination with these two metals, since only little depuration occurred at unpolluted sites. A good qualitative agreement was observed between the indications obtained from the mosses and those obtained from the mussels, suggesting that both are suitable indicators for monitoring purposes. The observed quantitative disparities were attributed to inherent differences in the accumulation strategies of each sentinel organism. Due to specific uptake and depuration kinetics, mosses and mussels appeared to be complementary in the detection of various types of pollution. PMID- 29016273 TI - Sorption of lead and thallium on borosilicate glass and polypropylene: Implications for analytical chemistry and soil science. AB - Adsorption of 10-100 ppb lead and thallium by borosilicate glass and polypropylene surfaces was studied. No thallium was adsorbed by either substrate at pH 7.0. About 50-60% of the lead was adsorbed by borosilicate glass at pH 5.5 and pH 7.0, with statistically indistinguishable conditional equilibrium constants (KD* values) of 1.47+/-0.40 mL cm-2 and 1.80+/-0.11 mL cm-2, respectively. Polypropylene adsorbed significantly more lead than borosilicate glass at pH 7.0 (80.9%, KD* =5.33+/-0.45 mL cm-2), and substantially less at pH 5.5 (16.7%, KD* = 0.27+/-0.03 mL cm-2), indicating a fundamental change in the nature of the polypropylene surface. All adsorption data fitted Freundlich plots. Preliminary experiments indicate that at pH 5.5, a fraction of the lead sequestered by the borosilicate glass may be bound irreversibly by migrating into the glass matrix. The results suggest that tectosilicates and silicate glasses may represent important adsorbents of some heavy metals in soils, despite showing very low intrinsic cation exchange capacities. PMID- 29016277 TI - Relational Coping Processes. AB - A diagnosis of breast cancer requires a woman to cope with a variety of physical and psychosocial challenges that are not faced in isolation. Interpersonal relationships are the context for appraisal, development of coping strategies, and defining of resources for adaptation to a serious illness. Of particular interest is the couple relationship. The level of complexity in understanding the process of adaptation is far greater when considering the impact of each partner's response on the other partner's coping strategies and the interactive management of the emotional recovery. The purpose of this study was to understand the specific processes that developed within the partner relationship as the couple began the process of recovery. Case-intensive interview data were analyzed using an interpretive methodology to construct the dyadic process of the woman and her partner. The data analysis revealed two types of processes: one process in which the patient's and partner's thoughts, feelings, and emotions were acknowledged; the other in which their thoughts, feelings, and emotions were moderated or minimized in some way. These patterns were present across couples. PMID- 29016276 TI - Hear How I Feel. AB - In an effort to heighten the awareness of the high school population, a support group program for young people whose parents were diagnosed with cancer received funding to produce an educational video titled Hear How I Feel. This article reports on the evaluation of the video by 146 high school teachers, guidance counselors, and students; elementary school teachers; university undergraduate social work students; and health care and social service providers. A qualitative analysis of the evaluations indicated that high school teachers and guidance counselors were reluctant to use the video in the high school setting because they could not respond expertly to emotions that might be elicited. The findings suggest that youths desire a forum in which difficult issues can be addressed, teachers and guidance counselors need training that would enhance their skill in responding to students' emotional responses, and cancer patients and their families have psychosocial needs that must be met. PMID- 29016278 TI - Racial Differences in the Health of Older-Adult Long-Term Cancer Survivors. AB - This article focuses on differences between African-American and White older adults who were long-term (five or more years postdiagnosis) survivors of cancer regarding reported health problems, symptoms of illness, functional difficulties, health worries and concerns, and overall perceptions of health. A conceptual model examined the relationship between demographic factors (e.g., race, age, cancer- and treatment-related factors) and perceptions of health (e.g., burden of disability, health concerns and worries, and self-rated global health). Regression analysis examined quantitative data from in-person interviews with 180 survivors of breast, colorectal, or prostate cancer obtained from the tumor registry of the Ireland Cancer Center at University Hospitals Health System of Cleveland. African Americans were oversampled to represent 50% of the total sample. The analysis indicated that African Americans experienced poorer functional health after cancer, even after disease and treatment factors were controlled for. However, compared with White survivors, African Americans did not report significantly more symptoms attributed to either cancer or its treatment, suggesting that their poorer health after cancer may not have been a result of either factor but to other comorbid conditions. Moreover, because the extensiveness of treatment is a significant predictor of functional disability, attention must be paid to the degree to which more extensive treatment among African Americans translates into greater disability. PMID- 29016275 TI - Effectiveness of Psychoanalytic-Interactional Group Therapy vs. Behavioral Group Therapy in Routine Outpatient Treatment of Alcohol-Dependent Patients. AB - BACKGROUND: The cognitive behavioral therapy has been extensively investigated to assess relapse prevention rates in patients with alcohol dependence. In contrast, only little is known regarding the effectiveness of psychoanalytical psychotherapy in relapse prevention, although this treatment is widely used and especially so in Germany. The aim of this quasi-randomized study was to compare the effectiveness of these two group treatments' approaches under the condition of routine outpatient treatment in a non-university hospital. METHODS: After inpatient detoxification, patients with alcohol dependence were allocated either to combined behavioral intervention (CBI) or to psychoanalytic-interactional therapy (PIT). The group treatment was carried out weekly over a period of six months. Also, the clinical care package included both individual treatment sessions (e.g. every 4-6 weeks) and abstinence supporting medication. The main outcome criteria included retention rates and frequency of alcohol relapse. RESULTS: Some 215 patients (mean age 49.6 years [standard deviation, 10], 56.7% males, with a mean duration of alcohol dependence of 16.5 years [range: 1-50 years]) were included in the study. Overall, CBI clients showed a retention rate of 66.7%, compared to 81.8% for PIT clients (p =.008). An intention-to-treat analysis of alcohol relapses showed a significant difference between PIT and CBI groups (PIT: 33.6%; CBI: 49.5%; p =.018). There were no statistically significant differences between the 2 groups in terms of prescription rates of disulfiram, naltrexone or acamprosate. CONCLUSIONS: Notwithstanding the study limitations, PIT seemed here to be at least as effective as CBI in terms of retention and relapse prevention rates' levels. PMID- 29016279 TI - Preferences for Psychosocial Interventions Among Newly Diagnosed Cancer Patients from a Multiethnic Population. AB - This article addresses preferences for psychosocial interventions in newly diagnosed cancer patients in a multiethnic sample consisting of Americans of European, Filipino, Native Hawaiian, and Japanese ancestry. Patients who were diagnosed with cancer four to six months before the study were identified through consecutive registrations on the Hawai'i Tumor Registry. Data were collected through personal interviews using a standardized questionnaire. Among 194 patients who participated in the study, 162 (84%) reported experiencing cancer related stress. Although few patients had participated in supportive interventions, there was considerable interest in these techniques. Most patients had received information about diagnosis and treatment, but only 10% had received information about psychological counseling. When preferences for supportive interventions were linked with demographic characteristics (e.g., gender, age, and ethnicity), the most consistent finding was higher levels of interest among Filipino patients. Additional research examining ethnic differences in preferences for psychosocial support is warranted. Because of the potential for greater use of behavioral therapies by patients, educating providers about the availability, efficacy, and patients' interest in such interventions is needed. PMID- 29016280 TI - Understanding the Barriers to Physical Activity for Cancer Patients. AB - For individuals who experience cancer, regular adherence to physical activity has been shown to provide benefits ranging from alleviation of symptoms to improvements in physical function and quality of life. However, research about barriers to participation that compromise adherence and subsequent benefits has been identified as needed. The purposes of this article were to (1) systematically review the barriers to research and make recommendations, (2) consider unique symptoms of disease and treatment regarding their barrier-related impact on exercise therapy, and (3) present an organizational framework that will aid the investigation and understanding of barriers as they affect adherence to prescribed exercise therapy for cancer treatment and recovery. PMID- 29016274 TI - Mind the Hype: A Critical Evaluation and Prescriptive Agenda for Research on Mindfulness and Meditation. AB - During the past two decades, mindfulness meditation has gone from being a fringe topic of scientific investigation to being an occasional replacement for psychotherapy, tool of corporate well-being, widely implemented educational practice, and "key to building more resilient soldiers." Yet the mindfulness movement and empirical evidence supporting it have not gone without criticism. Misinformation and poor methodology associated with past studies of mindfulness may lead public consumers to be harmed, misled, and disappointed. Addressing such concerns, the present article discusses the difficulties of defining mindfulness, delineates the proper scope of research into mindfulness practices, and explicates crucial methodological issues for interpreting results from investigations of mindfulness. For doing so, the authors draw on their diverse areas of expertise to review the present state of mindfulness research, comprehensively summarizing what we do and do not know, while providing a prescriptive agenda for contemplative science, with a particular focus on assessment, mindfulness training, possible adverse effects, and intersection with brain imaging. Our goals are to inform interested scientists, the news media, and the public, to minimize harm, curb poor research practices, and staunch the flow of misinformation about the benefits, costs, and future prospects of mindfulness meditation. PMID- 29016281 TI - Assessing the Impact of Leveraging Traditional Leadership on Access to Sanitation in Rural Zambia. AB - Open defecation is practiced by more than one billion people throughout the world and leads to significant public health issues including infectious disease transmission and stunted growth in children. Zambia implemented community-led total sanitation (CLTS) as an intervention to eliminate open defecation in rural areas. To support CLTS and the attainment of open defecation free communities, chiefs were considered key agents of change and were empowered to drive CLTS and improve sanitation for their chiefdom. Chiefs were provided with data on access to sanitation in the chiefdom during chiefdom orientations prior to the initiation of CLTS within each community and encouraged to make goals of universal sanitation access within the community. Using a survival regression, we found that where chiefs were orientated and mobilized in CLTS, the probability that a village would achieve 100% coverage of adequate sanitation increased by 23% (hazard ratio = 1.263, 95% confidence interval = 1.080-1.478, P = 0.003). Using an interrupted time series, we found a 30% increase in the number of individuals with access to adequate sanitation following chiefdom orientations (95% confidence interval = 28.8-32.0%). The mobilization and support of chiefs greatly improved the uptake of CLTS, and empowering them with increased CLTS knowledge and authority of the program in their chiefdom allowed chiefs to closely monitor village sanitation progress and follow-up with their headmen/headwomen. These key agents of change are important facilitators of public health goals such as the elimination of open defecation in Zambia by 2020. PMID- 29016282 TI - Analysis of Health Indicators in Two Rural Communities on the Colombian Caribbean Coast: Poor Water Supply and Education Level Are Associated with Water-Related Diseases. AB - Water-related diseases are closely linked with drinking water, sanitation, and hygiene (WASH) indicators, socioeconomic status, education level, or dwelling's conditions. Developing countries exhibit a particular vulnerability to these diseases, especially rural areas and urban slums. This study assessed socioeconomic features, WASH indicators, and water-related diseases in two rural areas of the Colombian Caribbean coast. Most of this population did not finish basic education (72.3%, N = 159). Only one of the communities had a water supply (aqueduct), whereas the other received water via an adapted tanker ship. No respondents reported sewage services; 92.7% (N = 204) had garbage service. Reported cases of diarrhea were associated with low education levels (P = 2.37 * 10-9) and an unimproved drinking water supply (P = 0.035). At least one fever episode was reported in 20% (N = 44) of dwellings, but the cases were not related to any indicator. The Aedes/House index (percentage of houses that tested positive for Aedes larvae and/or pupae) was 69%, the container index (percentage of water-holding containers positive for Aedes larvae or pupae) 29.4%, and the Breteau index (number of positive containers per 100 houses in a specific location) was three positive containers per 100 inspected houses. The presence of positive containers was associated with the absence of a drinking water supply (P = 0.04). The community with poorer health indicators showed greater health vulnerability conditions for acquisition of water-related diseases. In summary, water supply and educational level were the main factors associated with the presence of water-related diseases in both communities. PMID- 29016283 TI - Identification of Risk Factors of Multidrug-Resistant Tuberculosis by using Classification Tree Method. AB - Multidrug-resistant tuberculosis (MDR-TB) has become a major public health problem. We tried to apply the classification tree model in building and evaluating a risk prediction model for MDR-TB. In this case-control study, 74 newly diagnosed MDR-TB patients served as the case group, and 95 patients without TB from the same medical institution served as the control group. The classification tree model was built using Chi-square Automatic Interaction Detectormethod and evaluated by income diagram, index map, risk statistic, and the area under receiver operating characteristic (ROC) curve. Four explanatory variables (history of exposure to TB patients, family with financial difficulties, history of other chronic respiratory diseases, and history of smoking) were included in the prediction model. The risk statistic of misclassification probability of the model was 0.160, and the area under ROC curve was 0.838 (P < 0.01). These suggest that the classification tree model works well for predicting MDR-TB. Classification tree model can not only predict the risk of MDR-TB effectively but also can reveal the interactions among variables. PMID- 29016284 TI - Is Visceral Leishmaniasis Different in Immunocompromised Patients Without Human Immunodeficiency Virus? A Comparative, Multicenter Retrospective Cohort Analysis. AB - Although visceral leishmaniasis (VL) can affect immunocompromised patients, data from the human immunodeficiency virus (HIV) infection context are limited, and the characteristics of VL in other immunosuppression scenarios are not well defined. A retrospective review of all cases of VL in immunocompromised patients from January 1997 to December 2014 in two Spanish hospitals on the Mediterranean coast was performed. We included 18 transplant recipients (kidney: 7, liver: 4, lung: 3, heart: 2, and blood marrow: 2), 12 patients with other causes of immunosuppression (myasthenia gravis: 3 and rheumatoid arthritis: 2), and 73 VL HIV-positive patients. Fever was more common in transplant patients (94.4%) and patients with other types of immunosuppression (100%) than in HIV-positive individuals (73.3%). Hepatomegaly was less common in transplant recipients (27.8%) and patients with other types of immunosuppression (41.7%) compared with HIV-positive patients (69.9%) (P = 0.01; P = 0.001, respectively). Patients with other types of immunosuppression had a median leukocyte count of 1.5 * 109/L, significantly lower than HIV-positive patients (2.5 * 109/L) (P = 0.04). Serology was more commonly positive in nontransplant immunosuppressed individuals (75%) and transplant recipients (78.6%) than in HIV-patients (13.8%) (P < 0.001). Antimonial therapy was rarely used in transplant recipients (1.9%) and never in patients with other immunosuppressive conditions, whereas 34.2% of HIV-positive patients received it (P = 0.05 and P = 0.01, respectively). Mortality was 16.7% in both transplant recipients and patients with other immunosuppressive conditions and 15.1% in HIV-positive patients. The features of VL may be different in immunosuppressed patients, with more fever and less hepatomegaly and leukopenia than in HIV-infected patients. PMID- 29016285 TI - Development and Evaluation of a Loop-Mediated Isothermal Amplification Assay for the Detection of Treponema pallidum DNA in the Peripheral Blood of Secondary Syphilis Patients. AB - Secondary syphilis (SS) has always been puzzling for the clinicians because of the similarity of the appearance of skin rashes with other dermatoses. Serological assays are useful, but less sensitive at an early stage of SS or when patients are immunodeficient. Therefore, there is an urgent need to develop a rapid and effective tool for the diagnosis of SS, which may play an important role in the control of epidemic syphilis outbreaks. In this study, we evaluated a loop-mediated isothermal amplification (LAMP) assay, targeting gene encoding the basic membrane protein of Treponema pallidum, to detect the presence of circulating T. pallidum DNA in the blood of SS patients. The specificity of LAMP was validated using three strains of Spirochaetales and six common clinical bacteria. The clinical applicability of LAMP assay was assessed using 642 blood samples from clinically suspected SS patients and 80 samples from healthy blood donors, showing a sensitivity of 82.1% and a specificity of 100.0% in the diagnosis of SS. Thus, our results indicate that the LAMP can be used as a supplementary method for the diagnosis of SS. PMID- 29016286 TI - Chagas Disease Infection among Migrants at the Mexico/Guatemala Border. AB - Chagas disease results in the largest burden, in terms of disability-adjusted life-years, of any parasitic disease in the Americas. Monitoring Chagas disease among migrants is critical to controlling its spread and to serving the needs of the migrant community. Therefore, we determined the prevalence and correlates of Chagas disease in regional and international migrant populations at the Mexico/Guatemala border. Data were collected as part of a larger study of human immunodeficiency virus (HIV) and migration. Participants were a sample of recent regional and international migrants who used an illicit substance or had recent problem drinking. Trypanosoma cruzi infection was classified as testing positive on two different enzyme-linked immunosorbent assays (ELISAs). Interviewer administered surveys captured sociodemographics, migration history, Chagas disease knowledge, and access to care. We enrolled 389 recent migrants, and the prevalence of Chagas disease was 3.1%. Only 19% of the participants reported having ever heard of the disease and less than 1% had been previously tested. Trypanosoma cruzi-positive participants were more likely to have been born in a rural area or town than a city (92% yes versus 59% no, P = 0.02) and have recently lived in a house with a makeshift roof (33% yes versus 8% no, P < 0.01), walls (42% yes versus 13% no, P < 0.01), or floor (50% yes versus 21% no, P < 0.02), or cinderblock walls (92% yes versus 63% no, P = 0.04). With migration rapidly changing the distribution of Chagas disease, more work needs to be done to create targeted surveillance programs and provide access to affordable treatment among Latin American migrants. PMID- 29016287 TI - Benznidazole Nanoformulates: A Chance to Improve Therapeutics for Chagas Disease. AB - This article describes the characterization of various encapsulated formulations of benznidazole, the current first-line drug for the treatment of Chagas disease. Given the adverse effects of benznidazole, safer formulations of this drug have a great interest. In fact, treatment of Chagas disease with benznidazole has to be discontinued in as much as 20% of cases due to side effects. Furthermore, modification of delivery and formulations could have potential effects on the emergence of drug resistance. The trypanocidal activity of new nanostructured formulations of benznidazole to eliminate Trypanosoma cruzi was studied in vitro as well as their toxicity in two cultured mammalian cell lines (HepG2 and Fibroblasts). Nanoparticles tested included nanostructured lipid carriers, solid lipid nanoparticles, liposomes, quatsomes, and cyclodextrins. The in vitro cytotoxicity of cyclodextrins-benznidazole complexes was significantly lower than that of free benznidazole, whereas their trypanocidal activity was not hampered. These results suggest that nanostructured particles may offer improved therapeutics for Chagas disease. PMID- 29016288 TI - Efficacy and Safety of Liposomal Amphotericin B for Visceral Leishmaniasis in Children and Adolescents at a Tertiary Care Center in Bihar, India. AB - Liposomal amphotericin B is being used increasingly to reduce the burden of kala azar from the Indian subcontinent. There are studies which have evaluated efficacy and safety of liposomal amphotericin B for visceral leishmaniasis in all age groups. However, the only study that specifically addressed treatment of childhood visceral leishmaniasis did not include all ages or document renal and liver function. We, therefore, felt it was important to reassess the efficacy and safety of single dose liposomal amphotericin B in children and adolescents. A total of 100 parasitologically confirmed visceral leishmaniasis patients aged < 15 years were included in this study. Participants consisted of 65 males and 35 females. All of them had come from the endemic region of Bihar. They were administered one dose intravenous infusion of liposomal amphptericin B at 10 mg/kg body weight. Efficacy was assessed as initial and final cure at 1 and 6 months, respectively, and safety of all participants who were recruited in the study. The initial and final cure rate by per protocol analysis was 100% and 97.9%, respectively. Chills and rigors were the most commonly occurring adverse events (AEs). All the AEs were mild in intensity, and none of the patients experienced any serious AEs. No patients developed nephrotoxicity. Our finding indicates that liposomal amphotericin B at 10 mg/kg body weight is safe and effective in children. Results of our study support the use of single dose liposomal amphotericin B in all age group populations for elimination of kala azar from the Indian subcontinent. PMID- 29016290 TI - Variability of Cutaneous Leishmaniasis Lesions Is Not Associated with Genetic Diversity of Leishmania tropica in Khyber Pakhtunkhwa Province of Pakistan. AB - Leishmania tropica is the causative agent of cutaneous leishmaniasis in Pakistan. Here, intraspecific diversity of L. tropica from northern Pakistan was investigated using multilocus microsatellite typing. Fourteen polymorphic microsatellite markers were typed in 34 recently collected L. tropica isolates from Pakistan along with 158 archival strains of diverse Afro-Eurasian origins. Previously published profiles for 145 strains of L. tropica originating from different regions of Africa, Central Asia, Iran, and Middle East were included for comparison. Six consistently well-supported genetic groups were resolved: 1) Asia, 2) Morroco A, 3) Namibia and Kenya A, 4) Kenya B/Tunisia and Galilee, 5) Morocco B, and 6) Middle East. Strains from northern Pakistan were assigned to Asian cluster except for three that were placed in a geographically distant genetic group; Morocco A. Lesion variability among these Pakistani strains was not associated with specific L. tropica genetic profile. Pakistani strains showed little genetic differentiation from strains of Iraq, Afghanistan, and Syria (FST = 0.00-0.06); displayed evidence of modest genetic flow with India (FST = 0.14). Furthermore, genetic structuring within these isolates was not geographically defined. Pak-Afghan cluster was in significant linkage disequilibrium (IA = 1.43), had low genetic diversity, and displayed comparatively higher heterozygosity (FIS = -0.62). Patterns of genetic diversity observed suggest dominance of a minimally diverse clonal lineage within northern Pakistan. This is surprising as a wide clinical spectrum was observed in patients, suggesting the importance of host and other factors. Further genotyping studies of L. tropica isolates displaying different clinical phenotypes are required to validate this potentially important observation. PMID- 29016292 TI - Risk Factors for Methicillin-Resistant Staphylococcus aureus Carriage among Patients at Admission to the Surgical Ward in a Resource-Limited Hospital in Indonesia. AB - This study aimed to identify risk factors for methicillin-resistant Staphylococcus aureus (MRSA) carriage among patients at admission to the surgery ward in a resource-limited hospital in Indonesia. A case-control study was performed including 65 MRSA carriage patients and 132 non-MRSA carriage patients screened at admission to surgery wards in a hospital in Malang, East Java. For MRSA screening, swabs were obtained from nares and throat, cultured in an enrichment broth followed by subculturing onto CHROMagarTM MRSA; suspected colonies were confirmed by polymerase chain reaction. Patients referred from other hospitals, patients transferred from the surgical acute care unit, patients that had a surgical procedure within 3 months before admission, and immunocompromised patients were more likely to be MRSA carriers at admission to the surgery wards. Selective MRSA screening of patients according to such risk factors at admission would efficiently detect MRSA carriers and may help control MRSA dissemination in surgery wards in limited-resource settings. PMID- 29016291 TI - Chikungunya Detection during Dengue Outbreak in Sumatra, Indonesia: Clinical Manifestations and Virological Profile. AB - Chikungunya fever (CHIK) is an acute viral infection caused by infection with chikungunya virus (CHIKV). The disease affects people in areas where certain Aedes species mosquito vectors are present, especially in tropical and subtropical countries. Indonesia has witnessed CHIK disease since the early 1970s with sporadic outbreaks occurring throughout the year. The CHIK clinical manifestation, characterized by fever, headache, and joint pain, is similar to that of dengue (DEN) disease. During a molecular study of a DEN outbreak in Jambi, Sumatra, in early 2015, DENV-negative samples were evaluated for evidence of CHIKV infection. Among 103 DENV-negative samples, eight samples were confirmed (7.8%) as positive for CHIKV by both molecular detection and virus isolation. The mean age of the CHIK patients was 21.3 +/- 9.1 (range 11-35 years). The clinical manifestations of the CHIK patients were mild and mimicked DEN, with fever and headache as the main symptoms. Only three out of eight patients presented with classical joint pain. Sequencing of the envelope glycoprotein E1 gene and phylogenetic analysis identified all CHIKV isolates as belonging to the Asian genotype. Overall, our study confirms sustained endemic CHIKV transmission and the presence of multiple arboviruses circulating during a DEN outbreak in Indonesia. The co-circulation of arboviruses poses a public health threat and is likely to cause misdiagnosis and underreporting of CHIK in DEN-endemic areas such as Indonesia. PMID- 29016294 TI - Environmental Enteric Dysfunction: A Case Definition for Intervention Trials. PMID- 29016295 TI - Ignoring the "Itch": The Global Health Problem of Scabies. AB - Infestation with Sarcoptes scabiei var. hominis is a common human parasitic affliction endemic in tropical developing countries. Scabies is transmitted by close person-person contact, and outbreaks have been reported in reception centers for asylum seekers. Scabies presents clinically as extremely pruritic excoriated papules and linear burrows in the skin. This infestation predisposes to bacterial skin infections that can result in serious complications affecting the kidneys and possibly the heart. Treatment of individuals with scabies and their close contacts involves the use of antiparasitic agents. First-line treatment is topical 5% permethrin cream. Community mass drug administration, followed by active case finding with targeted treatment, is a promising approach that can reduce the prevalence of both scabies and bacterial skin infections. Organizations such as the International Alliance for the Control of Scabies are advocating for the development of integrated disease control strategies in an effort to decrease scabies infestation worldwide. PMID- 29016293 TI - Molecular and Phenotypic Characterization of Diarrheagenic Escherichia coli Strains Isolated from Bacteremic Children. AB - Escherichia coli is an important cause of Gram-negative bacteremia. The aim of this study was to characterize at the molecular and phenotypic levels E. coli strains belonging to different diarrheagenic pathotypes [diarrheagenic E. coli (DEC)] isolated from bacteremia in children younger than 5 years of age. Seventy bacteremia E. coli strains were collected in a prospective study in 12 hospitals in Lima, Peru. The presence of virulence genes associated with DEC [enterotoxigenic (lt and st), enteropathogenic (eaeA), shiga toxin-producing (stx1and stx2), enteroinvasive (ipaH), enteroaggregative (aggR), and diffusely adherent (daaD)] was determined by multiplex real-time polymerase chain reaction (PCR). Those positive E. coli strains were further analyzed for 18 additional virulence factors encoding genes and others phenotypic features. Virulence genes associated with DEC were identified in seven bacteremic children (10%), including: one aggR-positive [enteroaggregative E. coli (EAEC)], one eaeA positive [enteropathogenic E. coli (EPEC)], one st-positive [enterotoxigenic E. coli (ETEC)], one daaD-positive [diffusely adherent E. coli (DAEC)], and three strain positive for aggR and daaD (EAEC/DAEC) at the same time. All strains, except EPEC, had the Ag43 adhesin, and all, except ETEC had the siderophore gene fyuA. The phylogenetic profile of these strains was variable, two (B2), two (D), two (A), and one (B1) strain. These isolates were susceptible to all tested antibacterial agents except to ampicillin and gentamicin. The three EAEC/DAEC strains showed biofilm formation and aggregative adhesion and had the same repetitive extragenic palindromic-PCR patterns. These findings suggest that some DEC strains, especially agg-R and daa-D positive, might cause bacteremia in children. PMID- 29016289 TI - Experimental and Clinical Treatment of Chagas Disease: A Review. AB - Chagas disease (CD) is caused by the protozoan parasite Trypanosoma cruzi that infects a broad range of triatomines and mammalian species, including man. It afflicts 8 million people in Latin America, and its incidence is increasing in nonendemic countries owing to rising international immigration and nonvectorial transmission routes such as blood donation. Since the 1960s, the only drugs available for the clinical treatment of this infection have been benznidazole (BZ) and nifurtimox (NFX). Treatment with these trypanocidal drugs is recommended in both the acute and chronic phases of CD. These drugs have low cure rates mainly during the chronic phase, in addition both drugs present side effects that may result in the interruption of the treatment. Thus, more efficient and better tolerated new drugs or pharmaceutical formulations containing BZ or NFX are urgently needed. Here, we review the drugs currently used for CD chemotherapy, ongoing clinical assays, and most-promising new experimental drugs. In addition, the mechanism of action of the commercially available drugs, NFX and BZ, the biodistribution of the latter, and the potential for novel formulations of BZ based on nanotechnology are discussed. Taken together, the literature emphasizes the urgent need for new therapies for acute and chronic CD. PMID- 29016297 TI - Case Series of Naegleria fowleri Primary Ameobic Meningoencephalitis from Karachi, Pakistan. AB - Naegleria fowleri causes primary amoebic meningoencephalitis (PAM) which is almost always fatal. Naegleria fowleri is waterborne, and its infections are usually associated with aquatic activities but it can also be transmitted via the domestic water supply. An increasing number of N. fowleri cases have been reported from Pakistan. Improved methods for diagnosis are required. We report the utility of polymerase chain reaction (PCR) for the diagnosis of N. fowleri in patients suspected of PAM. One hundred and sixteen cases suspected of having PAM were examined. Cerebrospinal fluid (CSF) specimens were tested at the Aga Khan University Hospital, Karachi. Nineteen CSF specimens were positive for N. fowleri using PCR. Naegleria fowleri positive patients had a median age of 28 years and were 84% male and 16% female. Overall, CSF wet preparation microscopy was performed in 85 (73%) cases and identified that seven specimens were positive for motile trophozoites. The CSF wet preparation results were available for 15 of the 19 N. fowleri PCR positive CSF samples; seven (40%) wet preparations were positive. Our data highlight the threat of N. fowleri infection as a cause of PAM. It also emphasizes the utility of the PCR-based diagnosis of the amoeba for early diagnosis and management of the disease. PMID- 29016296 TI - Strategies to Improve Management of Acute Watery Diarrhea during a Military Deployment: A Cost Effectiveness Analysis. AB - To inform policy and decision makers, a cost-effectiveness model was developed to predict the cost-effectiveness of implementing two hypothetical management strategies separately and concurrently on the mitigation of deployment-associated travelers' diarrhea (TD) burden. The first management strategy aimed to increase the likelihood that a deployed service member with TD will seek medical care earlier in the disease course compared with current patterns; the second strategy aimed to optimize provider treatment practices through the implementation of a Department of Defense Clinical Practice Guideline. Outcome measures selected to compare management strategies were duty days lost averted (DDL-averted) and a cost effectiveness ratio (CER) of cost per DDL-averted (USD/DDL-averted). Increasing health care and by seeking it more often and earlier in the disease course as a stand-alone management strategy produced more DDL (worse) than the base case (up to 8,898 DDL-gained per year) at an increased cost to the Department of Defense (CER $193). Increasing provider use of an optimal evidence based treatment algorithm through Clinical Practice Guidelines prevented 5,299 DDL per year with overall cost savings (CER -$74). A combination of both strategies produced the greatest gain in DDL-averted (6,887) with a modest cost increase (CER $118). The application of this model demonstrates that changes in TD management during deployment can be implemented to reduce DDL with likely favorable impacts on mission capability and individual health readiness. The hypothetical combination strategy evaluated prevents the most DDL compared with current practice and is associated with a modest cost increase. PMID- 29016298 TI - Case Report: Cysticercosis: Sonographic Diagnosis of a Treatable Cause of Epilepsy and Skin Nodules. AB - A case of disseminated cysticercosis of brain, muscle subcutaneous tissue is reported and the use of musculoskeletal ultrasound in the diagnosis of the condition emphasized. PMID- 29016300 TI - Relative Bradycardia in Scrub Typhus. AB - To investigate the relationship between heart rate and temperature, we examined 493 febrile patients with documented disease. These patients were diagnosed serologically and analyzed retrospectively: 337 (68.4%) responded to fever with increased heart rate < 10 beats/minute/ degrees C (relative bradycardia [RB]), and 156 patients had a heart rate response >= 10 beats/minute/ degrees C (general heart rate increase [GHRI]). The RB group had a higher median resting heart rate and lower heart rate at maximum temperature than the GHRI group. Despite differences in heart rate response, no significant differences were seen in clinical outcomes (acute kidney injury, systemic inflammatory response syndrome (SIRS), and death). We concluded that most patients with scrub typhus presented with RB. In scrub typhus infection, RB can be included as one of the clinical features for differential diagnosis from other infectious diseases. PMID- 29016299 TI - Detection of Mycoplasma pneumoniae and Legionella pneumophila in Patients Having Community-Acquired Pneumonia: A Multicentric Study from New Delhi, India. AB - Atypical pathogens including Mycoplasma pneumoniae and Legionella pneumophila are increasingly recognized as important causes of community-acquired pneumonia (CAP). Mycoplasma pneumoniae accounts for 20-40% of all CAP and L. pneumophila is responsible for 3-15% of cases. The paucity of data from India in this regard prompted us to conduct this prospective multicentric analysis to detect the prevalence of M. pneumoniae and L. pneumophila in our geographical region. A total of 453 patients with symptoms of pneumonia and 90 controls with no history of lower respiratory tract infections were included in the study. A duplex polymerase chain reaction (PCR) targeting 543 bp region of P1 adhesin gene of M. pneumoniae and 375 bp region of macrophage infectivity potentiator (mip) gene of L. pneumophila was standardized for simultaneous detection of these atypical pathogens. Respiratory secretions, blood, and urine samples were collected from each patient and control and were subjected to duplex PCR, culture and serology for M. pneumoniae and L. pneumophila. Urine samples were subjected for detecting L. pneumophila antigen. Among the 453 patients investigated for M. pneumoniae, 52 (11.4%) were positive for IgM antibodies, 17 were positive by culture, and seven tested positive by PCR (P1 gene). Similarly for L. pneumophila, 50 cases (11%) were serologically positive for IgM antibodies, one was positive by PCR (mip gene) and urine antigen detection. A total of eight samples were positive by duplex PCR for M. pneumoniae P1 gene (N = 7) and L. pneumophila mip gene (N = 1). Of the 90 controls, two samples (2.2%) showed IgM positivity, and 15 (16.7%) showed IgG positivity for M. pneumoniae. For L. pneumophila, three samples (3.3%) tested positive for IgM, and 12 (13.3%) tested positive for IgG antibodies. The study findings indicate the presence of M. pneumoniae and L. pneumophila in our geographical region, and a combination of laboratory approaches including PCR, culture, and serology is required for effective detection of these agents. PMID- 29016301 TI - Case Report: Primary Tuberculosis of the Bilateral Breast. AB - Primary breast tuberculosis is rare. We report a case of bilateral primary breast tuberculosis. The patient received incisional drainage and debridement of both breasts. Histopathology of the breast tissues revealed chronic granulomatous inflammation and positive acid-fast stain. The patient received antitubercular therapy for 18 months, and she achieved complete resolution. PMID- 29016302 TI - Diagnosis of Louse-Borne Relapsing Fever despite Negative Microscopy in Two Asylum Seekers from Eastern Africa. AB - We report two cases of louse-borne relapsing fever observed at our Institution in June 2016. Both patients were young asylum seekers from Africa who had recently arrived in Milan, Italy. Notably, direct microscopic examination of peripheral blood smears was repeatedly negative for the presence of spirochetes and the diagnosis, supported by clinical and epidemiologic evidence, required molecular confirmation by polymerase chain reaction amplification of DNA extracted from blood and sequencing of the amplified products. PMID- 29016303 TI - Undiagnosed Active Pulmonary Tuberculosis among Pilgrims during the 2015 Hajj Mass Gathering: A Prospective Cross-sectional Study. AB - Mass gatherings pose a risk for tuberculosis (TB) transmission and reactivation of latent TB infection. The annual Hajj pilgrimage attracts 2 million pilgrims many from high TB-endemic countries. We evaluated the burden of undiagnosed active pulmonary TB in pilgrims attending the 2015 Hajj mass gathering. We conducted a prospective cross-sectional study in Mecca, Kingdom of Saudi Arabia, for nonhospitalized adult pilgrims from five high TB-endemic countries. Enrollment criteria were the presence of a cough and the ability to produce a sputum sample. Sputum samples were processed using the Xpert MTB-RIF assay. Data were analyzed for drug-resistant TB, risk factors, and comorbidities by the country of origin. Of 1,164 consenting pilgrims enrolled from five countries: Afghanistan (316), Bangladesh (222), Nigeria (176), Pakistan (302), and South Africa (148), laboratory results were available for 1,063 (91.3%). The mean age of pilgrims was 54.5 (range = 18-94 years) with a male to female ratio of 2.6:1; 27.7% had an underlying comorbidity, with hypertension and diabetes being the most common, 20% were smokers, and 2.8% gave a history of previous TB treatment. Fifteen pilgrims (1.4%) had active previously undiagnosed drug-sensitive pulmonary TB (Afghanistan [12; 80%], Pakistan [2; 13.3%], and Nigeria [1; 6.7%]). No multidrug-resistant TB cases were detected. Pilgrims from high TB-endemic Asian and African countries with undiagnosed active pulmonary TB pose a risk to other pilgrims from over 180 countries. Further studies are required to define the scale of the TB problem during the Hajj mass gathering and the development of proactive screening, treatment and prevention guidelines. PMID- 29016305 TI - Real-Time Polymerase Chain Reaction Assay on Bronchoalveolar Lavage: An Alternative Method for Diagnosing Chronic Pulmonary Schistosomiasis? AB - Schistosomiasis causes mainly hepatic and genitourinary damage. Although lung nodules have been commonly described in acute phase, they are presumably underdiagnosed in chronic schistosomiasis. We previously reported a series of patients with chronic pulmonary schistosomiasis confirmed by the histological examination of the lung biopsies. In the present work, we retrospectively tested an in-house real-time polymerase chain reaction for Schistosoma (currently validated for diagnosis on stool and on urine) in the bronchoalveolar lavage (BAL) of a couple of those patients, and both resulted positive. The possibility of testing BAL with molecular methods targeting a wide spectrum of pathogens, including parasites, is appealing. Further studies are needed to validate this technique that might reduce unnecessary biopsies. PMID- 29016306 TI - Case Report: Bullous Scabies in Two Children below 10 Years. AB - Bullous scabies is an infrequent and atypical presentation of scabies, with predilection for elderly and males. Its median age of presentation is 70 years. We report two male cases of bullous scabies who were 7 years and 6 months old. Both patients had excellent response to sulfur 10% ointment alone and have had no recurrence in more than 3 months of follow-up. PMID- 29016308 TI - Absence of Loa loa Microfilaremia among Newly Arrived Congolese Refugees in Texas. AB - The Centers for Disease Control and Prevention recommends that refugees at risk of Loa loa infection be tested for microfilaria before treatment with ivermectin. We report observational results of this approach in African refugees in Texas. Daytime blood smears were performed for microfilaria on at-risk African refugees who arrived in Texas from July 1, 2014 through December 30, 2016. Clinics were asked if there were any adverse events reported among those who received ivermectin. Of the 422 persons screened, 346 (82%) were born in L. loa-endemic countries, with 332 (96%) of these being born in the Democratic Republic of Congo. No smears detected microfilaria, and all received presumptive ivermectin with no reports of significant adverse events. In this investigation, the prevalence of significant microfilarial load in sub-Saharan African refugees appeared to be low, and ivermectin treatment was safe and well tolerated. PMID- 29016307 TI - The Differential Expression and Possible Function of Long Noncoding RNAs in Liver Cells Infected by Dengue Virus. AB - The function of long noncoding RNAs (lncRNAs) in liver injury resulted by dengue virus (DENV) infection have not yet been explored. The differential expression profiles of lncRNAs (as well as mRNAs) in the L-02 liver cells infected by DENV1, DENV2, or uninfected were compared and analyzed after a high throughput RNA seq. The significantly up-regulated and down-regulated lncRNAs (or mRNAs) resulted by DENV infection were identified with a cutoff value at log2 (ratio) >= 1.5 and log2 (ratio) <= -1.5 (ratio = the reads of the lncRNAs or mRNAs from the infection groups divided by the reads from the control group). Several differentially expressed lncRNAs were verified with reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR). Target gene analysis, pre-miRNA prediction, and the lncRNA-mRNA co-expression network construction were performed to predict the function of the differentially expressed lncRNAs. The differentially expressed lncRNAs were associated with biosynthesis, DNA/RNA related processes, inhibition of estrogen signaling pathway, sterol biosynthetic process, protein dimerization activity, vesicular fraction in DENV1 infection group; and with protein secretion, methyltransferase process, host cell cytoskeleton reorganization and the small GTPase Ras superfamily, inhibition of cell proliferation, induction of apoptosis in DENV2 infection. LncRNAs might be novel diagnostic markers and targets for further researches on dengue infection and liver injury resulted by dengue virus. PMID- 29016310 TI - Case Report: A Cluster of Three Leptospirosis Cases in a New York City Abattoir and an Unusual Complication in the Index Case. AB - We report the case of a 46-year-old male abattoir worker who developed myalgias, shortness of breath, and irritability 2 weeks after sustaining a laceration to the hand with a knife at work. During his hospital evaluation for septic shock he was noted to be febrile, hypotensive, profoundly jaundiced with aseptic meningitis, and renal failure, and was diagnosed with Leptospirosis interrogans infection confirmed by serum and urine polymerase chain reaction. After standard antibiotic therapy and recovery from severe clinical illness, he developed unilateral orchitis with pyuria secondary to leptospirosis, a well-established complication in the veterinary literature, but of which we offer the first report in humans in the English literature. The case presented was also the index case that uncovered a cluster outbreak of leptospirosis in New York City during the winter of 2016-2017, involving a total of three patients who lived or worked within a block of the abattoir. Two patients survived whereas the third died of pulmonary hemorrhage shortly after seeking medical care. PMID- 29016304 TI - Hair Mercury Level is Associated with Anemia and Micronutrient Status in Children Living Near Artisanal and Small-Scale Gold Mining in the Peruvian Amazon. AB - Anemia has been widely studied in global health contexts because of severe nutritional deficiency, and more recently, inflammatory status, but chemical exposures are rarely considered. Until recently, "anemia" was used synonymously with "iron deficiency anemia (IDA)" in global health settings. However, only 50% of anemia cases worldwide are IDA. Environmental toxicology studies of anemia risk have generally focused on populations in developed countries, albeit with high exposure to environmental toxicants, such as lead or cadmium. In the developing world, toxicant exposures commonly coexist with other risk factors for anemia. In particular, artisanal and small-scale gold mining (ASGM) communities are at risk for dietary methylmercury exposure through contaminated fish consumption, and for anemia due to food insecurity and infectious and chronic diseases. Here, we report analysis of total hair mercury content, hemoglobin, and serum micronutrient levels in children < 12 years of age (N = 83) near ASGM in the Peruvian Amazon. Forty-nine percent (N = 29/59) of those aged < 5 years were anemic (< 11 g/dL) and 52% (N = 12/23) of those aged 5-11 years (< 11.5 g/dL). Few children were stunted, wasted, or micronutrient deficient. Median total hair mercury was 1.18 MUg/g (range: 0.06-9.70 MUg/g). We found an inverse association between total mercury and hemoglobin (beta = -0.12 g/dL, P = 0.06) that persisted (beta = -0.14 g/dL, P = 0.04) after adjusting for age, sex, anthropometrics, and vitamin B12 in multivariate regression. This study provides preliminary evidence that methylmercury exposure is associated with anemia, which is especially relevant to children living near ASGM. PMID- 29016309 TI - Comparative Prevalence of Plasmodium falciparum Resistance-Associated Genetic Polymorphisms in Parasites Infecting Humans and Mosquitoes in Uganda. AB - Controlling malaria in high transmission areas, such as much of sub-Saharan Africa, will require concerted efforts to slow the spread of drug resistance and to impede malaria transmission. Understanding the fitness costs associated with the development of drug resistance, particularly within the context of transmission, can help guide policy decisions to accomplish these goals, as fitness constraints might lead to decreased transmission of drug-resistant strains. To determine if Plasmodium falciparum resistance-mediating polymorphisms impact on development at different parasite stages, we compared the genotypes of parasites infecting humans and mosquitoes from households in Uganda. Genotypes at 14 polymorphic loci in genes encoding putative transporters (pfcrt and pfmdr1) and folate pathway enzymes (pfdhfr and pfdhps) were characterized using ligase detection reaction-fluorescent microsphere assays. In paired analysis using the Wilcoxon signed-rank test, prevalences of mutations at 12 loci did not differ significantly between parasites infecting humans and mosquitoes. However, compared with parasites infecting humans, those infecting mosquitoes were enriched for the pfmdr1 86Y mutant allele (P = 0.0001) and those infecting Anopheles gambiae s.s. were enriched for the pfmdr1 86Y (P = 0.0001) and pfcrt 76T (P = 0.0412) mutant alleles. Our results suggest modest directional selection resulting from varied fitness costs during the P. falciparum life cycle. Better appreciation of the fitness implications of drug resistance mediating mutations can inform optimal malaria treatment and prevention strategies. PMID- 29016311 TI - Case Report: Severe Imported Influenza Infections Developed during Travel in Reunion Island. AB - We report two cases of severe influenza infection imported by tourist patients from their country of origin and developed during travel. While studies have reported cases of influenza infections acquired during travel, here we examine two cases of severe influenza infection contracted in the country of origin that led to diagnosis and therapeutic problems in the destination country. No international recommendation exists concerning influenza vaccination before travel, and few countries recommend it for all travelers. Our study suggests that travel should be canceled when infectious signs are observed before departure. Influenza is a very common infection that is often benign, but sometimes very severe. The most severe cases include shock, acute respiratory distress syndrome (ARDS), myocarditis, rhabdomyolysis, and multiple organ failure. Management can require exceptional therapies, such as extracorporeal membrane oxygenation. A number of studies have focused on influenza infection in travelers. Cases of influenza acquired during travel have been reported in this literature, but no study has examined cases of influenza imported from the country of origin and developed while abroad. The latter situation may lead to 1) diagnostic problems during the nonepidemic season or in places where diagnostic techniques are lacking and 2) therapeutic difficulties resulting from the unavailability of techniques for the management of severe influenza infection in tourist areas. Here, we report two cases of extremely severe influenza infection imported by tourists from their country of origin and developed during travel. PMID- 29016312 TI - Dengue Virus Serotype 2 Established in Northern Mozambique (2015-2016). AB - After the report of an outbreak of dengue virus serotype 2 in 2014 in Nampula and Pemba cities, northern Mozambique, a surveillance system was established by the National Institute of Health. A study was performed during 2015-2016 to monitor the trend of the outbreak and confirm the circulating serotype of dengue virus (DENV). After the inclusion of consenting patients who met the case definition, samples from 192 patients were tested for the presence of nonstructural protein 1 antigen, and 60/192 (31%) samples were positive. Further analysis included DENV IgM antibodies, with 39 (20%) IgM positive cases. Reverse transcriptase (RT) PCR was performed for identification of the prevailing DENV serotype; 21/23 tested samples were DENV-2 positive, with DENV-2 present in both affected cities. When sequencing DENV, phenotype Cosmopolitan was identified. The surveillance indicates ongoing spread of DENV-2 in northern Mozambique 2 years after the first report of the outbreak. PMID- 29016313 TI - Case Report: Fatal Pediatric Melioidosis Despite Optimal Intensive Care. AB - With prompt administration of appropriate antimicrobial therapy and access to modern intensive care support, fatal pediatric melioidosis is very unusual. We describe cases of two children in whom the possibility of melioidosis was recognized relatively early, but who died of the disease, despite receiving optimal supportive care. We discuss the resulting implications for bacterial virulence factors in disease pathogenesis. PMID- 29016314 TI - Case Report: Paralytic Shellfish Poisoning in Sabah, Malaysia. AB - During the months of January-February and May-June 2013 coinciding with the red tide occurrence in Kota Kinabalu, Sabah, Malaysia, six episodes involving 58 cases of paralytic shellfish poisoning (PSP) or saxitoxin (STX) poisoning and resulting in four deaths were reported. Many of them were intoxicated from consuming shellfish purchased from the markets, whereas others were intoxicated from eating shellfish collected from the beach. Levels of STX in shellfish collected from the affected areas were high (mean 2,920 +/- 780 and 360 +/- 140 ug STX equivalents/100 g shellfish meat respectively for the two periods). The count of toxic dinoflagellates (Pyrodinium bahamense var compressum) of the sea water sampled around the coast was also high (mean 34,200 +/- 10,300 cells/L). Species of shellfish containing high levels of STX were Atrina fragilis, Perna viridis, and Crassostrea belcheri. The age of victims varied from 9 to 67 years. Symptoms presented were typical of PSP, such as dizziness, numbness, vomiting, and difficulty in breathing. Recommended steps to prevent or reduce PSP in future red tide season include better monitoring of red tide occurrence, regular sampling of shellfish for determination of STX level, wider dissemination of information on the danger of eating contaminated shellfish among the communities, fishermen, and fishmongers. PMID- 29016315 TI - Case Report: Molecular Confirmation of Lobomycosis in an Italian Traveler Acquired in the Amazon Region of Venezuela. AB - Lobomycosis is a chronic skin mycosis endemic in Amazon regions characterized by chronic nodular or keloidal lesions caused by Lacazia loboi, an uncultivable fungus. Imported cases in nonendemic countries are rare and diagnosed after years. We describe a case of lobomycosis in a healthy 55-year-old Italian traveler who had acquired the infection during 5-day-honeymoon in the Amazon region of Venezuela in 1999. Several weeks after return, he recalled pruritus and papular skin lesions on the left lower limb, subsequently evolving to a plaque like lesion. Blastomycosis and cryptococcosis were hypothesized based on microscopic morphology of yeast-like bodies found in three consecutive biopsies, although fungal cultures were always negative. In 2016, exfoliative cytology and a biopsy specimen examination showed round yeast-like organisms (6-12 MUm), isolated or in a chain, connected by short tubular projections fulfilling the morphologic diagnostic criteria of Lacazia spp. The microscopic diagnosis was confirmed by molecular identification. PMID- 29016316 TI - Toxocara Seroprevalence and Associated Risk Factors in the United States. AB - Caused by the parasitic nematodes Toxocara canis and cati, toxocariasis in humans can result in covert toxocariasis, ocular toxocariasis, visceral larval migrans, and neurotoxocariasis. A common infection, toxocariasis exposure varies widely within and between countries, with a previous estimate of Toxocara seroprevalence using data from 1988 to 1994 in the United States of approximately 13%. Age, poverty, sex, educational attainment, ethnicity, and region have been associated with Toxocara seroprevalence. In this study, we sought to determine the seroprevalence of and factors associated with Toxocara seropositivity in the United States using data from the National Health and Nutrition Examination Survey from 2011 to 2014 to provide a more recent estimate of Toxocara seroprevalence in the United States. We found an overall Toxocara seroprevalence of 5.1%. Increasing age, male sex, low educational attainment, low income, and immigration status each was associated with Toxocara seropositivity. Mexican Americans had reduced odds of exposure. These findings show that exposure to Toxocara continues in the United States and that several demographic factors influence the risk of exposure. PMID- 29016317 TI - Malaria Is More Prevalent Than Iron Deficiency among Anemic Pregnant Women at the First Antenatal Visit in Rural South Kivu. AB - Anemia is common during pregnancy and is associated with poor outcomes. Objectives were not only 1) to determine the prevalence of anemia and iron deficiency (ID) but also 2) to identify other factors associated with anemia in pregnant women from South Kivu province, in the eastern Democratic Republic of Congo. Between December 2013 and March 2014, 531 women attending the first antenatal visit in their second trimester of pregnancy were recruited. Sociodemographic, clinical, and biological data were collected. Hemoglobin (Hb) was determined by a portable photometer (Hemocue(r) Hb201+), and anemia was defined as altitude-adjusted Hb < 110 g/L. ID was defined as serum ferritin < 15 MUg/L adjusted for inflammation status (C-reactive protein [CRP] > 5 mg/L and/or alpha-1-acid glycoprotein > 1 g/L) whereas hypoalbuminemia was defined as serum albumin < 35 g/L. A Giemsa-stained blood smear was used to diagnose malaria. The median age (interquartile range ) was 25.5 (21.1-31.3) years, with anemia in 17.6% and ID in 8%. Malaria was present in 7.5% and hypoalbuminemia among 44%. Soluble transferrin receptor concentration was higher in the presence of inflammation and/or malaria. In the final logistic regression model, factors independently associated with anemia were malaria (adjusted odds ratio [aOR]: 11.24 (4.98-25.37) P < 0.001), hypoalbuminemia [aOR: 2.14 (1.27-3.59); P = 0.004] and elevated CRP [aOR: 1.94 (1.10-3.45); P = 0.022]. ID was not highly prevalent and not associated with anemia in our population. Effective control of anemia during pregnancy in this region should consider fighting malaria and other infectious diseases in combination with measures to improve women's nutrition, both before and during pregnancy. PMID- 29016319 TI - Clinical Epidemiology of Septic Arthritis Caused by Burkholderia pseudomallei and Other Bacterial Pathogens in Northeast Thailand. AB - Septic arthritis is a medical emergency, and if not treated appropriately, it can be associated with high morbidity and mortality. Melioidosis, a serious infectious disease caused by the Gram-negative bacillus Burkholderia pseudomallei, is highly endemic in South and Southeast Asia and northern Australia. We reviewed the medical charts of adult patients admitted with bacterial septic arthritis at Sunpasitthiprasong Hospital, Ubon Ratchathani, northeast Thailand from January 2012 to December 2014. Bacterial septic arthritis was defined as one or more hot swollen joints with isolation of a pathogenic organism from an affected joint or from blood. A total of 154 patients with septic arthritis were retrospectively evaluated. The most common causes were B. pseudomallei (48%, N = 74), Streptococcus spp. (29%, N = 44), and Staphylococcus aureus (10%, N = 16). Prevalence of diabetes, bacteremia, and pneumonia was higher in B. pseudomallei septic arthritis than in septic arthritis caused by the other bacteria (all P < 0.01). Seventy three percent (54/74) of patients infected with B. pseudomallei and 69% (55/80) of patients with the other bacteria received effective antimicrobials on the first day of admission (P = 0.60), but in hospital mortality of the former group was considerably higher (34% versus 14%, P = 0.004). In conclusion, B. pseudomallei septic arthritis is common and associated with high mortality in northeast Thailand. Emergence of Streptococcus arthritis is observed. Difficulty in diagnosing melioidosis and identifying B. pseudomallei in areas where health care workers are not familiar with the disease is discussed. In melioidosis-endemic regions, parenteral ceftazidime could be considered as empirical antimicrobial therapy for patients with septic arthritis and underlying diseases. PMID- 29016320 TI - Comparison of Platforms for Testing Antibody Responses against the Chlamydia trachomatis Antigen Pgp3. AB - Antibody responses to Chlamydia trachomatis (CT) antigens may be useful tools for surveillance of trachoma by estimating cumulative prevalence of infection within a population. Data were compared from three different platforms-multiplex bead array (MBA), enzyme-linked immunosorbent assay (ELISA), and lateral flow assay (LFA)-measuring antibody responses against the CT antigen protein plasmid gene product 3 (Pgp3). Sensitivity was defined as the proportion of specimens testing antibody positive from a set of dried blood spots from Tanzanian 1-9-year olds who were positive for CT nucleic acid of all nucleic acid amplification test (NAAT)-positive individuals (N = 103). The sensitivity of the LFA could not be determined because of the use of dried blood spots for this test; this specimen type has yet to be adapted to LFA. Specificity was defined as the proportion of sera from U.S. and Bolivian 1-9-year olds that had previously tested negative by the Chlamydia microimmunofluorescence (MIF) assay testing negative to Pgp3 specific antibodies (N = 154). The sensitivity for MBA and ELISA was the same 93.2 (95% confidence interval [CI]: 88.3-98.1). Specificity ranged across platforms from 96.1 (95% CI: 91.8-98.2) to 99.4% (95% CI: 98.2-100). ELISA performance was similar regardless of whether the plates were precoated or freshly coated with antigen. Sensitivity and specificity of control panels were similar if the cutoff was determined using receiver operator curves or a finite mixture model, but the cutoffs themselves differed by approximately 0.5 OD using the different methodologies. These platforms show good sensitivity and specificity and show good agreement between tests at a population level, but indicate variability for ELISA outcomes depending on the cutoff determination methodology. PMID- 29016321 TI - Nationwide Seroprevalence of Leptospirosis among Young Thai Men, 2007-2008. AB - Leptospirosis, a global neglected zoonotic disease, is an important public health problem in Thailand. Nonspecific symptoms, lack of laboratory confirmation, and underreporting contribute to its neglected disease status. To better understand the distribution of leptospirosis exposure in Thailand, a retrospective leptospirosis seroprevalence study was conducted on repository serum specimens obtained from young Thai men entering the Royal Thai Army during 2007-2008. The overall nationwide leptospirosis IgG seroprevalence among these young Thai men was 28% (95% confidence interval = 26-30%) and the range by province was 10-52% confirming leptospirosis as an endemic disease throughout Thailand. Seroprevalence was highest in individuals with the lowest education from rural areas, and higher seroprevalence was found in the north and south regions contrary to current morbidity reports. Improvement in reporting and surveillance as well as better access to leptospirosis diagnostics will increase leptospirosis awareness and detection and enable more effective public health interventions. PMID- 29016318 TI - Effects of Boiling Drinking Water on Diarrhea and Pathogen-Specific Infections in Low- and Middle-Income Countries: A Systematic Review and Meta-Analysis. AB - Globally, approximately 2 billion people lack microbiologically safe drinking water. Boiling is the most prevalent household water treatment method, yet evidence of its health impact is limited. To conduct this systematic review, we searched four online databases with no limitations on language or publication date. Studies were eligible if health outcomes were measured for participants who reported consuming boiled and untreated water. We used reported and calculated odds ratios (ORs) and random-effects meta-analysis to estimate pathogen-specific and pooled effects by organism group and nonspecific diarrhea. Heterogeneity and publication bias were assessed using I2, meta-regression, and funnel plots; study quality was also assessed. Of the 1,998 records identified, 27 met inclusion criteria and reported extractable data. We found evidence of a significant protective effect of boiling for Vibrio cholerae infections (OR = 0.31, 95% confidence interval [CI] = 0.13-0.79, N = 4 studies), Blastocystis (OR = 0.35, 95% CI = 0.17-0.69, N = 3), protozoal infections overall (pooled OR = 0.61, 95% CI = 0.43-0.86, N = 11), viral infections overall (pooled OR = 0.83, 95% CI = 0.7 0.98, N = 4), and nonspecific diarrheal outcomes (OR = 0.58, 95% CI = 0.45-0.77, N = 7). We found no evidence of a protective effect for helminthic infections. Although our study was limited by the use of self-reported boiling and non experimental designs, the evidence suggests that boiling provides measureable health benefits for pathogens whose transmission routes are primarily water based. Consequently, we believe a randomized controlled trial of boiling adherence and health outcomes is needed. PMID- 29016323 TI - Enzootic Circulation of Chikungunya Virus in East Africa: Serological Evidence in Non-human Kenyan Primates. AB - Chikungunya virus (CHIKV) is a globally emerging pathogen causing debilitating arthralgia and fever in humans. First identified in Tanzania (1953), this mosquito-borne alphavirus received little further attention until a 2004 re emergence in Kenya from an unknown source. This outbreak subsequently spread to the Indian Ocean, with adaptation for transmission by a new urban vector. Under the hypothesis that sylvatic progenitor cycles of CHIKV exist in Kenya (as reported in West Africa, between non-human primates (NHPs) and arboreal Aedes spp. mosquitoes), we pursued evidence of enzootic transmission and human spillover events. We initially screened 252 archived NHP sera from Kenya using plaque reduction neutralization tests. Given an overall CHIKV seroprevalence of 13.1% (marginally higher in western Kenya), we sought more recent NHP samples during 2014 from sites in Kakamega County, sampling wild blue monkeys, olive baboons, and red-tailed monkeys (N = 33). We also sampled 34 yellow baboons near Kwale, coastal Kenya. Overall, CHIKV seropositivity in 2014 was 13.4% (9/67). Antibodies reactive against closely related o'nyong-nyong virus (ONNV) occurred; however, neutralization titers were too low to conclude ONNV exposure. Seroprevalence for the flavivirus dengue was also detected (28%), mostly near Kwale, suggesting possible spillback from humans to baboons. CHIKV antibodies in some juvenile and subadult NHPs suggested recent circulation. We conclude that CHIKV is circulating in western Kenya, despite the 2004 human outbreaks only being reported coastally. Further work to understand the enzootic ecology of CHIKV in east Africa is needed to identify sites of human spillover contact where urban transmission may be initiated. PMID- 29016324 TI - Hemoglobin Levels and the Risk of Malaria in Papua New Guinean Infants: A Nested Cohort Study. AB - Studies are available that assess the risk of malaria in accordance to the body's iron store and the systematic iron supplementation of preschool children. However, only a few studies evaluated the temporal association between hemoglobin and malaria and their results are opposing. A total of 1,650 3-month-old Papua New Guinean infants were enrolled in this study and followed-up for 12 months. The risk of malaria was assessed in all children every 3 months and with each episode of fever. The incidence of clinical malaria between 3 and 15 months of age was 249 cases per 1,000 infants per year. After adjustment for potential confounding factors, a decrease of 1 g/dL of hemoglobin was associated with a nonsignificant increase of 11% for risk of malaria infection (hazard ratio, 1.11, 95% confidence interval; CI, 0.99-1.25, P = 0.076). Only children with severe anemia (hemoglobin < 8.0 g/dL) at baseline were at higher risk of malaria infection (hazard ratio, 1.72, 95% CI, 1.08-2.76, P = 0.023) during the follow-up year compared with the control group (Hemoglobin > 10.0 g/dL). This association was not statistically significant if only clinical malaria episodes were taken into account (hazard ratio, 1.42, 95% CI, 0.77-2.61, P = 0.26). Our study suggests that infants with lower hemoglobin levels are not protected against malaria infection. Further research that examines the risk of malaria in relation to both hemoglobin and iron store levels would be important to better understand this complex interaction. PMID- 29016325 TI - Increased Mortality in Seasonal H3N2 Patients Compared with those with Pandemic 2009 H1N1 in Taiwan, 2009-2010. AB - We conducted a retrospective study to compare clinical and laboratory findings between 1) severe influenza A and mild influenza A and 2) pandemic 2009 H1N1 (pdm09 A/H1) and seasonal H3N2 (A/H3) from 2009 to 2010. A total of 526 (mean age, 13.6 years; 447 pdm09 A/H1, 79 seasonal A/H3) patients were included, 41 (7.8%) with severe influenza (mean age, 28.1 years; 26 pdm09 A/H1, 15 seasonal A/H3). Influenza-associated complications were pneumonia (75.6%), meningoencephalitis (14.6%), acute kidney injury (14.6%), and acute respiratory distress syndrome (12.2%). Patients with seasonal A/H3 were significantly less likely to experience sore throat (P < 0.001), malaise (P < 0.001), and muscle pain (P < 0.001); they were significantly more likely to have hypertension (P < 0.001), diabetes mellitus (P = 0.001), and chronic obstructive pulmonary disease (P < 0.001), delayed hospital presentation (P = 0.001), delayed oseltamivir treatment (P < 0.001), and higher in-hospital mortality (P = 0.02) than patients with pdm09 A/H1. Further comparison between severe pdm09 A/H1 and severe seasonal A/H3 revealed that severe seasonal A/H3 patients (median age, 71 years) were significantly older than patients with severe pdm09 A/H1 (median age, 7 years) (P < 0.001). Comparison between severe influenza and mild influenza, regardless of influenza A subtypes, by multivariate analysis, found that tachypnea (odds ratio [OR] = 44.3, 95% confidence interval [CI] = 15.7-124.6) and delayed oseltamivir therapy ? 48 hours after illness onset (OR = 3.7, 95% CI = 1.3-10.5) were independent risk factors for severe influenza. The findings of this study will improve the understanding of the clinical differences between pdm09 A/H1 and seasonal A/H3, and of influenza-associated complications and predictors for severe outcomes that can help to direct clinicians toward the most effective management of influenza patients to reduce the preventable mortality and morbidity. PMID- 29016322 TI - Demographic, Socioeconomic, and Geographic Factors Leading to Severe Malaria and Delayed Care Seeking in Ugandan Children: A Case-Control Study. AB - We studied associations between delayed care seeking, demographic, socioeconomic, and geographic factors and likelihood of severe malaria in Ugandan children. The study was based at Jinja Hospital, Uganda. We enrolled 325 severe malaria cases and 325 uncomplicated malaria controls matched by age and residence. Patient details, an itinerary of events in response to illness, household information, and location of participants' residences were captured. Conditional logistic regression was used to determine risk factors for severe malaria and delayed care seeking. Delayed care seeking (>= 24 hours after fever onset; odds ratio [OR] 5.50; 95% confidence interval [CI] 2.70, 11.1), seeking care at a drug shop as the initial response to illness (OR 3.62; 95% CI 1.86, 7.03), and increasing distance from place of residence to the nearest health center (OR 1.45; 95% CI 1.17, 1.79) were independent risk factors for severe malaria. On subgroup analysis, delayed care seeking was a significant risk factor in children with severe malaria attributable to severe anemia (OR 15.6; 95% CI 3.02, 80.6), but not unconsciousness (OR 1.13; 95% CI 0.30, 4.28). Seeking care at a drug shop (OR 2.84; 95% CI 1.12, 7.21) and increasing distance to the nearest health center (OR 1.18; 95% CI 1.01, 1.37) were independent risk factors for delayed care seeking. Delayed care seeking and seeking care at a drug shop were risk factors for severe malaria. Seeking care at a drug shop was also a predictor of delayed care seeking. The role of drug shops in contributing to delayed care and risk of severe malaria requires further study. PMID- 29016326 TI - Human Intestinal Parasite Burden and Poor Sanitation in Rural Alabama. AB - Hookworm infection affects 430 million people worldwide, causing iron deficiency, impaired cognitive development, and stunting in children. Because of the environmental conditions needed for the hookworm life-cycle, this parasite is endemic to resource-limited countries. Necator americanus was endemic in the southern United States before improvement of sewage disposal systems and eradication programs. With continued poverty, poor sanitation, and an environment suitable for the hookworm life-cycle in some regions of the southern United States, a current prevalence study using modern molecular diagnostics is warranted. Lowndes County, Alabama, was chosen as the study site given previous high hookworm burdens, degree of poverty, and use of open-sewage systems. Participants were interviewed, and stool, serum, and soil samples were tested for nine intestinal parasites using a multiparallel quantitative real-time PCR (qPCR) and enzyme-linked immunosorbent assays. We found that, among 24 households, 42.4% reported exposure to raw sewage within their home, and from 55 stool samples, 19 (34.5%) tested positive for N. americanus, four (7.3%) for Strongyloides stercoralis, and one (1.8%) for Entamoeba histolytica. Stool tested positive for N. americanus contained low levels of parasite DNA (geometric mean 0.0302 fg/MUL). Soil studies detected one (2.9%) Cryptosporidium species, and Toxocara serology assay detected one (5.2%) positive in this population. Individuals living in this high-risk environment within the United States continue to have stool samples positive for N. americanus. Gastrointestinal parasites known to be endemic to developing countries are identifiable in American poverty regions, and areas with lower disease burden are more likely to be identified by using qPCR. PMID- 29016327 TI - Molecular and Clinical Epidemiology of Salmonella Paratyphi A Isolated from Patients with Bacteremia in Nepal. AB - Little is known about the epidemiology of typhoid and paratyphoid fever in Nepal. We aimed to elucidate the molecular and clinical epidemiology of Salmonella Paratyphi A in Nepal. Isolates were collected from 23 cases of bacteremia due to S. Paratyphi A between December 2014 and October 2015. Thirteen patients (57%) were male, and the median age was 21 years. None of the patients had an underlying chronic disease. All S. Paratyphi A isolates were sensitive to ampicillin, trimethoprim/sulfamethoxazole, ceftriaxone, and chloramphenicol. All isolates were resistant to nalidixic acid and were categorized as intermediately susceptible to levofloxacin. Phylogenetic analysis revealed close relatedness among the isolates, including several clonal groups, suggesting local spread. Patients with bacteremia due to S. Paratyphi A in Kathmandu, Nepal, were relatively young and nondebilitated. Improving control of S. Paratyphi infections should focus on effective infection control measures and selection of empirical therapy based on current resistance patterns. PMID- 29016328 TI - Intralesional Infiltration with Meglumine Antimoniate for the Treatment of Leishmaniasis Recidiva Cutis in Ecuador. AB - Meglumine Antimoniate (MA), administered intramuscularly for 21 continuous days is the recommended treatment of leishmaniases in Ecuador. However, because of its toxicity and requirement for intramuscular injections, treatment is frequently abandoned before completion. In addition, therapeutic failure and reactivation are not uncommon. Here we evaluate the efficacy and safety of MA administered intralesionally (IL) in leishmaniasis recidiva cutis (LRC). LRC is a special clinical variant of cutaneous leishmaniasis, characterized by reactivation at the edges of a primary cured lesion, presenting with active papules around the scar. Twenty-one patients were included in the study. All were diagnosed parasitologically by one of three diagnostic methods (smear, culture, and Leishmanin skin test). Each patient received MA intralesionally weekly for 4 weeks. Each papule was infiltrated until complete saturation. On average, patients received 1 mL of MA per administration. The criterion of cure was the complete resolution of the papules. Follow up was performed at 30, 90, and 180 days after treatment. At day 30 after treatment, 19 (90.5%) of 21 patients were clinically cured. The two patients, who did not heal by the fourth application, were cured on the seventh and eighth dose, achieving a clinical cure of 100% without subsequent reactivation. Mild to moderate local pain during infiltration was the only adverse reaction experienced by 81% of patients. In one case, subsequent infiltrations were discontinued because of a local allergic reaction. Complete compliance of patients to treatment and the small volume of drug administered make this method of administering MA an effective, safe, and inexpensive alternative. Consequently, IL could replace intramuscular administration in the treatment of LRC in Ecuador. PMID- 29016329 TI - Preliminary Evaluation of Percutaneous Treatment of Echinococcal Cysts without Injection of Scolicidal Agent. AB - Puncture, Aspiration, Injection of scolicidal agent, Re-aspiration is the most widely used percutaneous treatment of cystic echinococcosis (CE). Among its perceived risks is chemical sclerosing cholangitis, a serious complication due to the caustic effect of the scolicidal solution on the biliary tree, when a patent cystobiliary fistula occurs. To simplify the protocol, we decided to omit injection and reaspiration of the scolicidal agent and to implement a full course of albendazole (ABZ) therapy instead of the routine 1-month ABZ prophylaxis. We searched our databases for patients with CL (Cystic Lesion, suspected for CE), CE1, and CE3a cysts treated between October 2007 and January 2017 with percutaneous aspiration followed by at least 1 month of oral ABZ and with an ultrasound follow-up of at least 6 months. Fifteen patients matched our inclusion criteria. Follow-up ranged from 7 to 75 months. The oral ABZ course after the aspiration procedure ranged from 1 to 18 months. Eleven subjects (73.3%) had undergone a course of ABZ before the percutaneous procedure (min 15 days, max 16 months). Ten cysts (62.5%) had reached solidification (stage CE4) in 3 to 69 months. Four other cysts (26.7%) remained stable in stage CE3a, whereas two cysts (13.3%) reactivated to stage CE3b. Procedural perioperative complications occurred in 13.3% of patients, whereas complications during the follow-up occurred in 20% of patients. These proof-of-concept preliminary results are overall comparable with those reported in the literature for other percutaneous treatments, both in terms of response rate, relapse rate, and morbidity. PMID- 29016330 TI - Characterization of Three New Insect-Specific Flaviviruses: Their Relationship to the Mosquito-Borne Flavivirus Pathogens. AB - Three novel insect-specific flaviviruses, isolated from mosquitoes collected in Peru, Malaysia (Sarawak), and the United States, are characterized. The new viruses, designated La Tina, Kampung Karu, and Long Pine Key, respectively, are antigenically and phylogenetically more similar to the mosquito-borne flavivirus pathogens, than to the classical insect-specific viruses like cell fusing agent and Culex flavivirus. The potential implications of this relationship and the possible uses of these and other arbovirus-related insect-specific flaviviruses are reviewed. PMID- 29016331 TI - Determining the Cause of Death: Mortality Surveillance Using Verbal Autopsy in Indonesia. AB - In the absence of a vital registration and health information systems, Indonesia does not have complete, accurate, and continuous data to summarize the mortality statistics of the population, nor determine the exact cause of death. Verbal autopsies performed in a community-based mortality surveillance have been used to provide information on the cause of deaths in such context. However, physician review of verbal autopsy can be expensive, time-consuming, and give inconsistent results, raising concern about its reliability. We used the Purworejo Health and Demographic Surveillance System's (HDSS) mortality data collected between 2000 and 2002 and assigned causes of death for all age groups using Interpreting Verbal Autopsy-4, analytic software that applies a probabilistic model. A total of 1,999 deaths were identified among 55,581 individuals surveyed in 14,409 households; 830 deaths were able to be recorded using the standardized World Health Organization (WHO) verbal autopsy questionnaire. We calculated the proportion of different causes of death and its incidence rate (IR) ratios with 95% confidence interval (CI) to compare the IR per person-years-observation (PYO). The IR of stroke was 126.7 per 100,000 PYO (95% CI: 109.7, 143.7); acute respiratory infection including pneumonia was 70.8 per 100,000 PYO (95% CI: 58.1, 83.5); and the IR of other and unspecified cardiac diseases was 57.7 per 100,000 PYO (95% CI: 46.2, 69.2). Stroke was indicated as the leading cause of death among elderly people aged 50 years and above. Meanwhile, pneumonia as a communicable disease was found to be the most common cause of death among both 0 14-year-old children and elderly people. PMID- 29016332 TI - Porcine Cysticercosis: Possible Cross-Reactivity of Taenia hydatigena to GP50 Antigen in the Enzyme-Linked Immunoelectrotransfer Blot Assay. AB - The lentil lectin glycoprotein enzyme-linked immunoelectrotransfer blot (LLGP EITB, reported sensitivity 99% and specificity 100%) is used as a serologic marker of exposure to Taenia solium in pigs. However, only a limited number of parasites have been evaluated for cross reactivity. Pigs may host other related cestode infections, including Taenia hydatigena, which have not been formally evaluated for cross-reactions. We investigated a corral in Tumbes, Peru, a region where a cysticercosis elimination demonstration project was completed in 2012. In this corral, 14/19 (73.7%) 6-8-week-old piglets were reactive to GP50 on LLGP EITB, and all had circulating Taenia sp. antigens. From eight necropsied piglets; four were infected with T. hydatigena metacestodes whereas none had evidence of T. solium infection. Two resident dogs were subsequently confirmed to have T. hydatigena taeniasis. These results suggest GP50 cross-reactivity in T. hydatigena-infected pigs, although controlled experimental infection is needed to confirm this hypothesis. PMID- 29016334 TI - Spatial Distribution of Pemphigus Occurrence over Five Decades in Southeastern Brazil. AB - Well-defined locations of pemphigus cases support the hypothesis of environmental factors' involvement in its etiopathogenesis; however, these foci have never been described using specialized geographical tools. This is the first report to geo reference pemphigus cases in a high-prevalence Brazilian region using geographic information systems. We aimed to report the spatio-temporal behavior of pemphigus foliaceus (PF) and vulgaris (PV) in southeastern Brazil, over the last five decades to describe geographical clusters, as well as to characterize the land use in the city with the highest number of cases. Patients were identified from 1965 to 2014. Maps were developed using ArcGIS software and organized into decades from 1965 to 2014. Ribeirao Preto was identified as the city with the greatest number of cases. Land use was analyzed within a 2 km-buffer surrounding the residence of each patient. A total of 426 cases of pemphigus were identified. PF was the predominant form (285 cases); notwithstanding, the number of new cases of PV rose, overtaking the number of new cases of PF in the last decade studied. Agricultural area (42%) and exposed soil (33.2%) are the most predominant land uses in Ribeirao Preto surrounding patients' residences. This study shows high confidence geographical foci of PF and PV, as well as provides evidence of an increase of both clinical forms over the last five decades. All cases of PV and PF are in proximity to rivers and agricultural areas which reinforce the hypothesis that environmental factors play a role in pemphigus etiopathogenesis. PMID- 29016333 TI - Distribution of Mutations Associated with Antifolate and Chloroquine Resistance among Imported Plasmodium vivax in the State of Qatar. AB - Plasmodium vivax is the most prevalent parasite worldwide, escalating by spread of drug resistance. Currently, in Qatar, chloroquine (CQ) plus primaquine are recommended for the treatment of P. vivax malaria. The present study examined the prevalence of mutations in dihydrofolate reductase (dhfr), dihydropteroate synthase (dhps) genes and CQ resistance transporter (crt-o) genes, associated with sulphadoxine-pyrimethamine (SP) and chloroquine resistance, among imported P. vivax cases in Qatar. Blood samples were collected from patients positive for P. vivax and seeking medical treatment at Hamad General Hospital, Doha, during 2013-2016. The Sanger sequencing method was performed to examine the single nucleotide polymorphisms in Pvdhfr, Pvdhps, and Pvcrt-o genes. Of 314 examined P. vivax isolates, 247 (78.7%), 294 (93.6%) and 261 (83.1%) were successfully amplified and sequenced for Pvdhfr, Pvdhps, and Pvcrt-o, respectively. Overall, 53.8% (N = 133) carried mutant alleles (58R/117N) in Pvdhfr, whereas 77.2% (N = 227) and 90% (N = 235) isolates possessed wild type allele in Pvdhps and Pvcrt-o genes, respectively. In addition, a total of eleven distinct haplotypes were detected in Pvdhfr/Pvdhps genes. Interestingly, K10 insertion in the Pvcrt-o gene was observed only in patients originating from the Indian subcontinent. The results suggested that CQ remains an acceptable treatment regimen but further clinical data are required to assess the effectiveness of CQ and SP in Qatar to support the current national treatment guidelines. In addition, limited distribution of genetic polymorphisms associated with CQ and SP resistance observed in imported P. vivax infections, necessitates regular monitoring of drug resistant P. vivax malaria in Qatar. PMID- 29016337 TI - The Multifactorial Epidemiology of Blackwater Fever. AB - Blackwater fever is a massive hemolytic event usually occurring in the context of repeated falciparum malaria infections and intermittent quinine use. Its etiology is poorly understood, and it is rarely seen today. Historical epidemiological observations from the 20th century demonstrated variable patterns in prisoners in Andaman Islands, refugees in Macedonia, canal workers in Panama, expatriates in Rhodesia, and Second World War soldiers. Rates of blackwater fever per 1,000 malaria cases varied over two orders of magnitude. Islands, such as the Andaman Islands and New Guinea, had lower blackwater fever rates than continental areas. During the Second World War, blackwater fever rates in British soldiers in West Africa and Australian soldiers in New Guinea differed by a factor of 40 despite similar treatment regimens and falciparum malaria transmission risks. Blackwater fever is a complex interaction between host erythrocyte, falciparum malaria, and antimalarial drugs which remains poorly understood. PMID- 29016335 TI - Performance of Loop-Mediated Isothermal Amplification for the Identification of Submicroscopic Plasmodium falciparum Infection in Uganda. AB - Accurately identifying and targeting the human reservoir of malaria parasitemia is critical for malaria control, and requires a reliable and sensitive diagnostic method. Loop-mediated isothermal amplification (LAMP) is increasingly used to diagnose submicroscopic parasitemia. Although most published studies report the sensitivity of LAMP compared with nested polymerase chain reaction (PCR) as >= 80%, they have failed to use a consistent, sensitive diagnostic as a comparator. We used cross-sectional samples from children and adults in Tororo, Uganda, a region with high but declining transmission due to indoor residual spraying, to characterize the sensitivity and specificity of pan-Plasmodium LAMP for detecting submicroscopic infections. We compared LAMP results targeting a mitochondrial DNA sequence conserved in all Plasmodium species, performed on DNA extracted from dried blood spots, to those of a gold standard quantitative PCR assay targeting the var gene acidic terminal sequence of Plasmodium falciparum (varATS qPCR), performed on DNA extracted from 200 uL of whole blood. Using LAMP and varATS qPCR increased the detection of parasitemia 2- to 5-fold, compared with microscopy. Among microscopy-negative samples, the sensitivity of LAMP was 81.5% for detecting infection >= 1 parasites/uL. However, low density infections were common, and LAMP failed to identify more than half of all infections diagnosed by varATS qPCR, performing with an overall sensitivity of 44.7% for detecting submicroscopic infections >= 0.01 parasites/uL. Thus, although the LAMP assay is more sensitive than microscopy, it missed a significant portion of the submicroscopic reservoir. These findings have important implications for malaria control, particularly in settings where low-density infections predominate. PMID- 29016336 TI - Efficacy and Safety of a Single-Dose Mebendazole 500 mg Chewable, Rapidly Disintegrating Tablet for Ascaris lumbricoides and Trichuris trichiura Infection Treatment in Pediatric Patients: A Double-Blind, Randomized, Placebo-Controlled, Phase 3 Study. AB - This randomized, double-blind, placebo-controlled study evaluated the efficacy and safety of a new chewable, rapidly-disintegrating mebendazole (MBZ) 500 mg tablet for Ascaris lumbricoides and Trichuris trichiura infection treatment. Pediatric patients (1-15 years; N = 295; from Ethiopia and Rwanda) excreting A. lumbricoides and/or T. trichiura eggs were enrolled. The study had a screening phase (3 days), a double-blind treatment phase (DBP, 19 days), and an open-label phase (OLP, 7 days). Patients received MBZ or placebo on day 1 of DBP and open label MBZ on day 19 +/- 2 after stool sample collection. Cure rates (primary endpoint), defined as species-specific egg count of 0 at the end of DBP, were significantly higher in the MBZ group than placebo for A. lumbricoides (83.7% [72/86; 95% CI: 74.2%; 90.8%] versus 11.1% [9/81; 95% CI: 5.2%; 20.1%], P < 0.001) and for T. trichiura (33.9% [42/124; 95% CI: 25.6%; 42.9%] versus 7.6% [9/119; 95% CI: 3.5%; 13.9%], P < 0.001). Egg reduction rates (secondary endpoint) were significantly higher in the MBZ group than placebo for A. lumbricoides (97.9% [95% CI: 94.4; 99.9] versus 19.2% [95% CI: -5.9; 41.5]; P < 0.001) and T. trichiura (59.7% [95% CI: 33.9; 78.8] versus 10.5% [95% CI: -16.8; 32.9]; P = 0.003). Treatment-emergent adverse events (TEAEs) in MBZ group occurred in 6.3% (9/144) of patients during DBP and 2.5% (7/278) during OLP. No deaths, serious TEAEs, or TEAEs leading to discontinuations were reported. A 500 mg chewable MBZ tablet was more efficacious than placebo for the treatment of A. lumbricoides and T. trichiura infections in pediatric patients, and no safety concerns were identified. PMID- 29016338 TI - A High Burden of Asymptomatic Gastrointestinal Infections in Traditional Communities in Papua New Guinea. AB - Stool samples were collected from 148 healthy adults living a traditional subsistence lifestyle in Papua New Guinea and screened for enteric pathogens using real-time RT-PCR/PCR assays. Enteric pathogens were detected in a high proportion (41%) of individuals. Clear differences were observed in the detection of pathogens between highland and lowland communities. In particular, there was a marked difference in detection rates of norovirus GII (20% and 0%, respectively) and Shigella sp. (15% and 0%, respectively). Analysis of the relationship between enteric pathogen carriage and microbial community composition of participants, using box plots to compare specific normal flora population numbers, did not suggest that gut microbial composition was directly associated with pathogen carriage. This study suggests that enteric pathogens are common in healthy individuals in Papua New Guinean highland communities, presumably acting as a reservoir of infection and thus contributing to a high burden of gastrointestinal illnesses. PMID- 29016340 TI - Presence of Burkholderia pseudomallei in Soil and Paddy Rice Water in a Rice Field in Northeast Thailand, but Not in Air and Rainwater. AB - Environmental Burkholderia pseudomallei has been postulated to be aerosolized during ploughing and heavy rain, and could result in inhalational melioidosis. Here, we determined the presence of B. pseudomallei in soil, paddy field water (PFW), air, and rainwater samples in a single rice paddy field in Ubon Ratchathani, northeast Thailand. In 2012, we collected 100 soil samples during the dry season, 10 PFW samples during the monsoon season, 77 air samples during ploughing (N = 31) and heavy rains (N = 46), and 60 rainwater samples during 12 rain events. We found that 32 soil samples (32%), six PFW samples (60%), and none of the air and rainwater samples were culture positive for B. pseudomallei. Other soil bacteria were isolated from air and rainwater samples. Mean quantitative count of B. pseudomallei estimated from two culture-positive PFW samples was 200 colony forming units/mL. Our findings suggest that the risk of melioidosis acquisition by inhalation in Thailand might be low. PMID- 29016339 TI - Synthetic Antigens Derived from Plasmodium falciparum Sporozoite, Liver, and Blood Stages: Naturally Acquired Immune Response and Human Leukocyte Antigen Associations in Individuals Living in a Brazilian Endemic Area. AB - Peptide vaccine strategies using Plasmodium-derived antigens have emerged as an attractive approach against malaria. However, relatively few studies have been conducted with malaria-exposed populations from non-African countries. Herein, the seroepidemiological profile against Plasmodium falciparum of naturally exposed individuals from a Brazilian malaria-endemic area against synthetic peptides derived from vaccine candidates circumsporozoite protein (CSP), liver stage antigen-1 (LSA-1), erythrocyte binding antigen-175 (EBA-175), and merozoite surface protein-3 (MSP-3) was investigated. Moreover, human leukocyte antigen (HLA)-DRB1* and HLA-DQB1* were evaluated to characterize genetic modulation of humoral responsiveness to these antigens. The study was performed using blood samples from 187 individuals living in rural malaria-endemic villages situated near Porto Velho, Rondonia State. Specific IgG and IgM antibodies and IgG subclasses were detected by enzyme-linked immunosorbent assay, and HLA-DRB1* and HLA-DQB1* low-resolution typing was performed by PCR-SSP. All four synthetic peptides were broadly recognized by naturally acquired antibodies. Regarding the IgG subclass profile, only CSP induced IgG1 and IgG3 antibodies, which is an important fact given that the acquisition of protective immunity appears to be associated with the cytophilicity of IgG1 and IgG3 antibodies. HLA-DRB1*11 and HLA-DQB1*7 had the lowest odds of responding to EBA-175. Our results showed that CSP, LSA-1, EBA, and MSP-3 are immunogenic in natural conditions of exposure and that anti-EBA antibody responses appear to be modulated by HLA class II antigens. PMID- 29016341 TI - Prevalence of Clinical and Subclinical Plasmodium falciparum and Plasmodium vivax Malaria in Two Remote Rural Communities on the Myanmar-China Border. AB - Malaria infections may be symptomatic, leading to treatment, or "asymptomatic," typically detected through active surveillance, and not leading to treatment. Malaria elimination may require purging both types of infection. Using detection methods with different sensitivities, we conducted a cross-sectional study in two rural communities located along the border between China's Yunnan Province and Myanmar's Shan and Kachin States, to estimate the prevalence of asymptomatic and symptomatic malaria. In Mong Pawk, all infections detected were asymptomatic, and the prevalence of Plasmodium falciparum was 0.3%, 4.3%, 4.0%, and 7.8% by light microscopy, rapid diagnostic test (RDT), conventional polymerase chain reaction (cPCR), and multiplexed real-time PCR (RT-PCR), respectively, and Plasmodium vivax prevalence was 0% by all detection methods. In Laiza, of 385 asymptomatic participants, 2.3%, 4.4%, and 12.2% were positive for P. vivax by microscopy, cPCR, and RT-PCR, respectively, and 2.3% were P. falciparum-positive only by RT PCR. Of 34 symptomatic participants in Laiza, 32.4% were P. vivax-positive by all detection methods. Factors associated with infection included gender (males higher than females, P = 0.014), and young age group (5-17 age group compared with others, P = 0.0024). Although the sensitivity of microscopy was adequate to detect symptomatic infections, it missed the vast majority (86.5%) of asymptomatic infections. Although molecular detection methods had no advantage over standard microscopy or RDT diagnosis for clinically apparent infections, malaria elimination along the Myanmar-China border will likely require highly sensitive surveillance tools to identify asymptomatic infections and guide targeted screen-and-treat interventions. PMID- 29016342 TI - Case Report: Histoplasmosis in Himachal Pradesh (India): An Emerging Endemic Focus. AB - We describe four cases of histoplasmosis indigenous to Himachal Pradesh (India) that will be of considerable public health interest. A 48-year-old human immunodeficiency virus (HIV)-negative man with cervical and mediastinal lymphadenopathy, hepatosplenomegaly, adrenal mass, and bone marrow involvement was treated as disseminated tuberculosis without benefit. Progressive disseminated histoplasmosis was diagnosed from the fungus in smears from adrenal mass. Another 37-year-old HIV-positive man was on treatment of suspected pulmonary tuberculosis. He developed numerous erythema nodosum leprosum-like mucocutanous lesions accompanied by fever, generalized lymphadenopathy, and weight loss. Pulmonary histoplasmosis with cutaneous dissemination was diagnosed when skin lesions showed the fungus in smears, histopathology, and mycologic culture. Both were successfully treated with amphotericin B/itraconazole. Third patient, a 46-year-old HIV-negative man, had oropharyngeal lesions, cervical lymphadenopathy, intermittent fever, hepatosplenomegaly, and deteriorating general health. Progressive disseminated oropharyngeal histoplasmosis was diagnosed from the fungus in smears and mycologic cultures from oropharyngeal lesions and cervical lymph node aspirates. He died despite initiating treatment with oral itraconazole. Another 32-year-old man 3 months after roadside trauma developed a large ulcer with exuberant granulation tissue over left thigh without evidence of immunosuppression/systemic involvement. He was treated successfully with surgical excision of ulcer under amphotericin B/itraconazole coverage as primary cutaneous histoplasmosis confirmed pathologically and mycologically. A clinical suspicion remains paramount for early diagnosis of histoplasmosis particularly in a nonendemic area. Most importantly, with such diverse clinical presentation and therapeutic outcome selection of an appropriate and customized treatment schedule is a discretion the treating clinicians need to make. PMID- 29016345 TI - ? PMID- 29016344 TI - Defining Persistent Hotspots: Areas That Fail to Decrease Meaningfully in Prevalence after Multiple Years of Mass Drug Administration with Praziquantel for Control of Schistosomiasis. AB - Preventive chemotherapy with praziquantel for schistosomiasis morbidity control is commonly done by mass drug administration (MDA). MDA regimen is usually based on prevalence in a given area, and effectiveness is evaluated by decreases in prevalence and/or intensity of infection after several years of implementation. Multiple studies and programs now find that even within well-implemented, multiyear, annual MDA programs there often remain locations that do not decline in prevalence and/or intensity to expected levels. We term such locations "persistent hotspots." To study and address persistent hotspots, investigators and neglected tropical disease (NTD) program managers need to define them based on changes in prevalence and/or intensity. But how should the data be analyzed to define a persistent hotspot? We have analyzed a dataset from an operational research study in western Tanzania after three annual MDAs using four different approaches to define persistent hotspots. The four approaches are 1) absolute percent change in prevalence; 2) percent change in prevalence; 3) change in World Health Organization guideline categories; 4) change (absolute or percent) in both prevalence and intensity. We compare and contrast the outcomes of these analyses. Our intent is to show how the same dataset yields different numbers of persistent hotspots depending on the approach used to define them. We suggest that investigators and NTD program managers use the approach most suited for their study or program, but whichever approach is used, it should be clearly stated so that comparisons can be made within and between studies and programs. PMID- 29016343 TI - Passively versus Actively Detected Malaria: Similar Genetic Diversity but Different Complexity of Infection. AB - The surveillance of malaria is generally undertaken on the assumption that samples passively collected at health facilities are comparable to or representative of the broader Plasmodium reservoir circulating in the community. Further characterization and comparability of the hidden asymptomatic parasite reservoir are needed to inform on the potential impact of sampling bias. This study explores the impact of sampling strategy on molecular surveillance by comparing the genetic make-up of Plasmodium falciparum and Plasmodium vivax isolates collected by passive versus active case detection. Sympatric isolates of P. falciparum and P. vivax were collected from a large community survey and ongoing clinical surveillance studies undertaken in the hypomesoendemic setting of Mimika District (Papua, Indonesia). Plasmodium falciparum isolates were genotyped at nine microsatellite loci and P. vivax at eight loci. Measures of diversity and differentiation were used to compare different patient and parasitological sample groups. The results demonstrated that passively detected cases (symptomatic) had comparable population diversity to those circulating in the community (asymptomatic) in both species. In addition, asymptomatic patent infections were as diverse as subpatent infections. However, a significant difference in multiplicity of infection (MOI) and percentage of polyclonal infections was observed between actively and passively detected P. vivax cases (mean MOI: 1.7 +/- 0.7 versus 1.4 +/- 1.4, respectively; P = 0.001). The study findings infer that, in hypomesoendemic settings, passive sampling is appropriate for molecular parasite surveillance strategies using the predominant clone in any given infection; however, the findings suggest caution when analyzing complexity of infection. Further evaluation is required in other endemic settings. PMID- 29016346 TI - Nonsteroidal Anti-Inflammatory Drugs in Patients with Anorexia-Cachexia Syndrome Associated with Malignancy and Its Treatments. PMID- 29016347 TI - Omega-3 Fatty Acids in Patients with Anorexia-Cachexia Syndrome Associated with Malignancy and Its Treatments. PMID- 29016348 TI - PARP-1 and PARP-2 activity in cancer-induced cachexia: potential therapeutic implications. AB - Skeletal muscle dysfunction and mass loss is a characteristic feature in patients with chronic diseases including cancer and acute conditions such as critical illness. Maintenance of an adequate muscle mass is crucial for the patients' prognosis irrespective of the underlying condition. Moreover, aging-related sarcopenia may further aggravate the muscle wasting process associated with chronic diseases and cancer. Poly(adenosine diphosphate-ribose) polymerase (PARP) activation has been demonstrated to contribute to the pathophysiology of muscle mass loss and dysfunction in animal models of cancer-induced cachexia. Genetic inhibition of PARP activity attenuated the deleterious effects seen on depleted muscles in mouse models of oncologic cachexia. In the present minireview the mechanisms whereby PARP activity inhibition may improve muscle mass and performance in models of cancer-induced cachexia are discussed. Specifically, the beneficial effects of inhibition of PARP activity on attenuation of increased oxidative stress, protein catabolism, poor muscle anabolism and mitochondrial content and epigenetic modulation of muscle phenotype are reviewed in this article. Finally, the potential therapeutic strategies of pharmacological PARP activity inhibition for the treatment of cancer-induced cachexia are also being described in this review. PMID- 29016349 TI - Structural mechanisms of HECT-type ubiquitin ligases. AB - Ubiquitin ligases (E3 enzymes) transfer ubiquitin from ubiquitin-conjugating (E2) enzymes to target proteins. By determining the selection of target proteins, modification sites on those target proteins, and the types of ubiquitin modifications that are formed, E3 enzymes are key specificity factors in ubiquitin signaling. Here, I summarize our knowledge of the structural mechanisms in the HECT E3 subfamily, many members of which play important roles in human disease. I discuss interactions of the conserved HECT domain with E2 enzymes, ubiquitin and target proteins, as well as macromolecular interactions with regulatory functions. While we understand individual steps in the catalytic cycle of HECT E3 enzymes on a structural level, this review also highlights key aspects that have yet to be elucidated. For instance, it remains unclear how diverse target proteins are presented to the catalytic center and how certain HECT E3 enzymes achieve specificity in ubiquitin linkage formation. The structural and functional properties of the N-terminal regions of HECT E3 enzymes that likely act as signaling hubs are also largely unknown. Structural insights into these aspects may open up routes for a therapeutic intervention with specific HECT E3 functions in distinct pathophysiological settings. PMID- 29016350 TI - A novel design of HA-coated nanoparticles co-encapsulating plasmid METase and 5 Fu shows enhanced application in targeting gastric cancer stem cells. AB - Nanoparticles (NPs) are recognized as an attractive vehicles for cancer treatment due to their targeted drug release. Gastric cancer is an important killer disease, and its therapy methods still need improvement. The NPs were prepared using a precipitation method, and were evaluated using transmission electron microscopy (TEM). MTT and Transwell assays were used to determine cell viability and apoptosis. In vivo experiments were performed to validate the effects of NPs on tumor growth. Methioninase (METase)/5-Fu co-encaspulated NPs showed highest zeta size and lowest zeta potential than other NPs. The migration and tumorsphere formation ability of CD44(+) was stronger than CD44(-). The effects of METase/5 Fu co-encaspulated NPs on inhibition cell growth was stronger than that of 5-Fu encaspulated NPs, while HA coated NPs showed significant target ability than that NPs without HA. METase supplementation promoted the inhibition effect of 5-Fu on thymidylate synthetase (TS), as well as cell apoptosis. The in vivo experiments demonstrated that HA coated NPs significantly inhibited tumor growth. It was concluded that HA-coated NPs enhance the target ability, while METase/5-Fu co encaspulated NPs promote the inhibition effects on tumor growth in gastric cancer. PMID- 29016351 TI - Ameliorative effect of gallic acid on doxorubicin-induced cardiac dysfunction in rats. AB - BACKGROUND: The use of doxorubicin (DOX) as an antineoplastic agent has been greatly limited because of the myriad of toxic sequelae associated with it. The aim of this study was to assess the protective effects of gallic acid (GA) on DOX induced cardiac toxicity in rats. METHODS: Sixty male rats (Wistar strain) were used in this study. They were divided into six groups (A-F) each containing 10 animals. Group A was the control. Rats in Groups B, C, and D were treated with DOX at the dosage of 15 mg/kg body weight i.p. Prior to this treatment, rats in Groups C and D had been treated orally with GA for 7 days at the dosage of 60 and 120 mg/kg, respectively. Animals from Groups E and F received only 60 and 120 mg/kg GA, respectively, which were administered orally for 7 days. RESULTS: The exposure of rats to DOX led to a significant (p<0.05) decrease in the cardiac antioxidant defence system and elevation of creatine kinase myocardial band and lactate dehydrogenase. The electrocardiography results showed a significant decrease in heart rate, QRS, and QT-segment prolongation. GA alone improved the antioxidant defence system. CONCLUSIONS: The GA pretreatment significantly alleviated GA-associated ECG abnormalities, restored the antioxidant status and prevented cardiac damage. PMID- 29016352 TI - In vitro ovicidal activity of poly lactic acid curcumin-nisin co-entrapped nanoparticle against Fasciola spp. eggs and its reproductive toxicity. AB - BACKGROUND: Curcumin and nisin have been widely reported for their antibacterial and anticancer potency. However, their therapeutic applications are hampered by several factors, which necessitate their development into nanosize ranges for improved delivery and activities. Their incorporation into a single nanosynthesized form may suggest desirable efficacy on parasites. The aim of the study was to assess the ovicidal activity of the curcumin-nisin polylactic acid (PLA) entrapped nanoparticle on the Fasciola eggs and its reproductive toxicity. METHODS: The nanoparticle was formulated by double emulsion method. The eggs of the adult Fasciola spp. were exposed to different concentrations (0.3125-5 mg/mL) of the nanoparticle to monitor hatchability. Mice were exposed to 0.5 mL of the formulated drug at varying concentrations (10-20 mg/kg) and then sacrificed for sperm morphology assay. RESULTS: The mean particle size, polydispersity index, and drug entrapment efficiency of the formulated drug were 288.4+/-24.3 nm, 0.232, and 51.7%, respectively. The highest nanoparticulate concentration (5 mg/mL) showed the least percentage egg hatching (41.7%) compared with the other treatment groups and positive control (albendazole) (45.1%). The aberrations observed in sperm cells were not concentration-dependent and no significant differences were observed in the mean aberrations between the nanoparticulate drug-exposed groups and the negative control (p>0.05). CONCLUSIONS: The results confirmed the ovicidal activity of the curcumin-nisin nanoparticulate drug against the Fasciola species. The formulation also showed no toxicity to sperm cells. More robust studies on anti-fascioliasis activity of the drug on adult Fasciola spp. and in vivo and in vitro toxicity studies are recommended. PMID- 29016353 TI - Markers influencing the presence of partial clinical remission in patients with newly diagnosed type 1 diabetes. AB - BACKGROUND: The aim of the study was to compare the selected markers in children with and without partial clinical remission (CR) of newly diagnosed type 1 diabetes (T1D). METHODS: The study group consisted of 186 patients (F/M; 87/99) at onset of T1D and 24 months of follow-up. Partial CR was defined as insulin requirement <0.5 IU/kg and glycated hemoglobin (HbA1c) <7%. RESULTS: Partial CR was observed in 115/186 (61.83%) of patients. At diagnosis body mass index standard deviation (BMI SDS) was higher among remitters than in non-remitters (p=0.0051) and remitters were younger (p=0.0029). In the follow-up a higher triglyceride concentration in non-remitters compared to remitters (p=0.0455) and a lower high density lipoprotein (HDL) cholesterol level (p=0.0119) were noticed. CONCLUSIONS: Younger age and higher BMI at diagnosis of T1D can predispose to partial CR in children. In patients with CR of T1D after 2 years of follow-up a lipid profile improvement is observed. PMID- 29016354 TI - Congenital cataract with LSS gene mutations: a new case report. AB - BACKGROUND: Congenital cataract is one of the major causes of blindness and amblyopia in children. About one-third of the cases are inherited. CASE PRESENTATION: We applied whole exome sequencing for a pediatric patient with congenital cataract, small penis, baldness and absence of eyebrows and detected a compound heterozygous mutation in the lanosterol synthase (LSS) gene. These two mutations were inherited from the patient's parents. Both mutations altered the amino acid coding, at highly conserved amino acid residues. CONCLUSIONS: We concluded that the mutations affect the structural stability of the protein to some extent. PMID- 29016355 TI - Genetic analysis of fructose-1,6-bisphosphatase (FBPase) deficiency in nine consanguineous Pakistani families. AB - BACKGROUND: Fructose-1,6-bisphosphatase (FBPase) deficiency is a rare inherited metabolic disorder characterized by recurrent episodes of hypoglycemia, ketosis and lactic acidosis. FBPase is encoded by FBP1 gene and catalyzes the hydrolysis of fructose-1,6-bisphosphate to fructose-6-phosphate in the last step of gluconeogenesis. We report here FBP1 mutations in nine consanguineous Pakistani families affected with FBPase deficiency. METHODS: Nine families having one or two individuals affected with FBPase deficiency were enrolled over a period of 3 years. All FBP1 exonic regions including splicing sites were PCR-amplified and sequenced bidirectionally. Familial cosegregation of mutations with disease was confirmed by direct sequencing and PCR-RFLP analysis. RESULTS: Three different FBP1 mutations were identified. Each of two previously reported mutations (c.472C>T (p.Arg158Trp) and c.841G>A (p.Glu281Lys)) was carried by four different families. The ninth family carried a novel 4-bp deletion (c.609_612delAAAA), which is predicted to result in frameshift (p.Lys204Argfs*72) and loss of FBPase function. The novel variant was not detected in any of 120 chromosomes from normal ethnically matched individuals. CONCLUSIONS: FBPase deficiency is often fatal in the infancy and early childhood. Early diagnosis and prompt treatment is therefore crucial to preventing early mortality. We recommend the use of c.472C>T and c.841G>A mutations as first choice genetic markers for molecular diagnosis of FBPase deficiency in Pakistan. PMID- 29016356 TI - Decline in lung function among cement production workers: a meta-analysis. AB - BACKGROUND: Several studies with different results have been performed regarding cement dust exposure and its pathogenic outcomes during the previous years. This study aims to combine these results to obtain a reliable estimate of the effect of exposure to cement dust. METHODS: PubMed and other data banks were searched to identify required electronic articles. The search was extended interviewing with relevant experts and research centers. Point and pooled estimates of outcome with 95% confidence intervals were estimated. RESULTS: Participants were 5371 exposed and 2650 unexposed persons. Total mean differences (95% confidence intervals) were estimated as of -0.48 (-0.71 to -0.25) L for forced vital capacity (FVC), 0.7 (-0.92 to -0.47) L for forced expiratory volume in the first second (FEV1), 0.43 (-0.68 to -0.19) L for FEV1/FVC%, -0.73 (-1.15 to -0.30) L/min for PEFR and 0.36 (-0.51 to -0.21) L/s for FEF25-75. CONCLUSION: Our meta-analysis showed that cement dust has significant impact on lung function and reduces the indicators of FVC, FEV1, FEV1/FVC, PEFR and FEF25-75. PMID- 29016357 TI - Corrigendum to: Ginkgetin inhibits proliferation of human leukemia cells via the TNF-alpha signaling pathway. PMID- 29016358 TI - CA125 effects on humoral immunosuppression. PMID- 29016361 TI - Contraction, cation oxidation state and size effects in cerium oxide nanoparticles. AB - An accurate description of the structural and chemical modifications of cerium oxide nanoparticles (NPs) is mandatory for understanding their functionality in applications. In this work we investigate the relation between local atomic structure, oxidation state, defectivity and size in cerium oxide NPs with variable diameter below 10 nm, using x-ray absorption fine structure analysis in the near and extended energy range. The NPs are prepared by physical methods under controlled conditions and analyzed in morphology and crystalline quality by high resolution transmission electron microscopy. We resolve here an important question on the local structure of cerium oxide NPs: we demonstrate a progressive contraction in the Ce-O interatomic distance with decreasing NP diameter and we relate the observed effect to the reduced dimensionality. The contraction is not significantly modified by inducing a 4%-6% higher Ce3+ concentration through thermal annealing in high vacuum. The consequences of the observed average cation anion distance contraction on the properties of the NPs are discussed. PMID- 29016362 TI - Compression deformation of WC: atomistic description of hard ceramic material. AB - The deformation characteristics of WC, as a typical hard ceramic material, were studied on the nanoscale using atomistic simulations for both the single-crystal and polycrystalline forms under uniaxial compression. In particular, the effects of crystallographic orientation, grain boundary coordination and grain size on the origin of deformation were investigated. The deformation behavior of the single-crystal and polycrystalline WC both depend strongly on the orientation towards the loading direction. The grain boundaries play a significant role in the deformation coordination and the potential high fracture toughness of the nanocrystalline WC. In contrast to conventional knowledge of ceramics, maximum strength was obtained at a critical grain size corresponding to the turning point from a Hall-Petch to an inverse Hall-Petch relationship. For this the mechanism of the combined effect of dislocation motion within grains and the coordination of stress concentration at the grain boundaries were proposed. The present work has moved forward our understanding of plastic deformability and the possibility of achieving a high strength of nanocrystalline ceramic materials. PMID- 29016360 TI - PKCzeta-dependent upregulation of p27kip1 contributes to oxidative stress induced retinal pigment epithelial cell multinucleation. AB - Retinal pigment epithelial (RPE) cells increase in size and multinucleate during aging. We have shown using human and mouse cell lines that oxidised photoreceptor outer segments (oxPOS)-induced cytokinesis failure is related to RPE cell multinucleation, although the underlying mechanism remains unknown. This study investigated the role of the PKC pathway in oxPOS-induced RPE multinucleation using ARPE19 cells. oxPOS treatment promoted PKC activity and upregulated the mRNA expression of PKC alpha, delta, zeta, iota and MU. Inhibition of PKCalpha with Go6976 resulted in a 33% reduction of multinucleate ARPE19 cells, whereas inhibition of PKCzeta with Go6983 led to a 50% reduction in multinucleate ARPE19 cells. Furthermore, oxPOS treatment induced a PKCzeta-dependent upregulation of the Cdk inhibitor p27kip1, its inhibition using A2CE reduced oxPOS-induced ARPE19 multinucleation. Our results suggest that oxPOS-induced ARPE19 cytokinesis failure is, at least in part, due to the upregulation of p27kip1 through activating the PKC, particularly PKCzeta pathway. Targeting the PKCzeta-p27kip1 signalling axis may be a novel approach to restore RPE repair capacity during aging. PMID- 29016359 TI - Age-related gene expression in luminal epithelial cells is driven by a microenvironment made from myoepithelial cells. AB - Luminal epithelial cells in the breast gradually alter gene and protein expression with age, appearing to lose lineage-specificity by acquiring myoepithelial-like characteristics. We hypothesize that the luminal lineage is particularly sensitive to microenvironment changes, and age-related microenvironment changes cause altered luminal cell phenotypes. To evaluate the effects of different microenvironments on the fidelity of epigenetically regulated luminal and myoepithelial gene expression, we generated a set of lineage-specific probes for genes that are controlled through DNA methylation. Culturing primary luminal cells under conditions that favor myoepithelial propogation led to their reprogramming at the level of gene methylation, and to a more myoepithelial-like expression profile. Primary luminal cells' lineage specific gene expression could be maintained when they were cultured as bilayers with primary myoepithelial cells. Isogenic stromal fibroblast co-cultures were unable to maintain the luminal phenotype. Mixed-age luminal-myoepithelial bilayers revealed that luminal cells adopt transcription and methylation patterns consistent with the chronological age of the myoepithelial cells. We provide evidence that the luminal epithelial phenotype is exquisitely sensitive to microenvironment conditions, and that states of aging are cell non-autonomously communicated through microenvironment cues over at least one cell diameter. PMID- 29016363 TI - Hillocks created for amorphizable and non-amorphizable ceramics irradiated with swift heavy ions: TEM study. AB - In a previous study, we found that hillocks (i.e. surface ion tracks) can be imaged using transmission electron microscopy (TEM) by irradiating thin CeO2 samples with swift heavy ions (SHI) at oblique incidence. In the present study, the same TEM method is applied to Y3Fe5O12 (YIG) and three fluorides (CaF2, SrF2 and BaF2) for observing hillocks. For YIG, which is one of the amorphizable materials, hillocks are found to have amorphous features consistent with amorphous features of ion tracks. For the fluorides, it is found that the hillocks do not exhibit amorphous features, and they are composed of nanocrystallites. Although hillocks for YIG and CaF2 exhibit different crystallographic features, hillock diameter agrees with the molten region diameter predicted by the thermal spike model for both materials. It is found that for YIG the hillock diameter is comparable to the ion track diameter, whereas for the fluorides it is always larger than the ion track diameter. The present result shows the existence of the velocity effect for ion track diameter in CaF2. It is also found that for fluorides both hillock and ion track diameters vary in the order of cation mass (i.e. CaF2 < SrF2 < BaF2). The above results of hillocks and ion tracks for SHI-irradiated fluorides can be consistently interpreted within the framework of the thermal spike model, if melting and successive recrystallization are assumed. PMID- 29016364 TI - Burnout and Psychological Distress Among Pediatric Critical Care Physicians in the United States. AB - OBJECTIVES: To estimate the prevalence of physician burnout, psychological distress, and its association with selected personal and practice characteristics among pediatric critical care physicians and to evaluate the relationship between burnout and psychological distress. DESIGN: Cross-sectional, online survey. SETTING: Pediatric critical care practices in the United States. SUBJECTS: Pediatric critical care physicians. INTERVENTIONS: None. MEASUREMENT AND MAIN RESULTS: A nonrandom sample of 253 physicians completed an online survey consisting of personal and practice characteristics, the Maslach Burnout Inventory, and the General Health Questionnaire. Nearly half of the participants (49%; 95% CI, 43-55%; n = 124) scored high burnout in at least one of the three subscales of the Maslach Burnout Inventory and 21% reported severe burnout. The risk of any burnout was about two times more in women physicians (odds ratio, 1.97; 95% CI, 1.2-3.4). Association between other personal or practice characteristics and burnout was not evident in this study, while regular physical exercise appeared to be protective. One third of all participants (30.5%) and 69% of those who experienced severe burnout screened positive for psychological distress. About 90% of the physicians reporting severe burnout have considered leaving their practice. CONCLUSIONS: Burnout is high among pediatric critical care physicians in the United States. About two thirds of the physicians with severe burnout met the screening criteria for psychological distress that suggests possible common mental disorders. Significant percentages of physicians experiencing burnout and considering to leave the profession has major implications for the critical care workforce. PMID- 29016365 TI - Spleen and liver injuries: when to operate? AB - PURPOSE OF REVIEW: Although nonoperative management (NOM) is the safest option in most patients with liver and splenic injuries or splenic injuries, some cases still need operative intervention. The aim of this review is to address the most recent literature and the evidence it provides for indications and timing of operative treatment for liver and spleen injuries. RECENT FINDINGS: There seems to be a decrease in publication rate on these topics over the last years, parallel to the acceptance of NOM as the 'gold standard', with little added to the existing body of evidence over the last 12-24 months. Most published studies are retrospective descriptions or comparisons with historical controls, some observational studies, but no randomized control trials (RCTs).There is a striking lack of high-level evidence for the optimal treatment of solid organ injuries. The role of angiographic embolization as an adjunct to the treatment of liver and spleen injuries is still a matter of discussion. SUMMARY: Unstable patients with suspected ongoing bleeding from liver and spleen injuries or spleen injuries with inadequate effect of resuscitation should undergo immediate explorative laparotomy.More RCTs are needed to further determine the role of angiographic embolization and who can be safely be treated nonoperatively and who needs surgical intervention. PMID- 29016366 TI - Acute life-threatening hypoxemia during mechanical ventilation. AB - PURPOSE OF REVIEW: To describe current evidence-based practice in the management of acute life-threatening hypoxemia in mechanically ventilated patients and some of the methods used to individualize the care of the patient. RECENT FINDINGS: Patients with acute life-threatening hypoxemia will often meet criteria for severe ARDS, for which there are only a few treatment strategies that have been shown to improve survival outcomes. Recent findings have increased our knowledge of the physiological effects of spontaneous breathing and the application of PEEP. Additionally, the use of advanced bedside monitoring has a promising future in the management of hypoxemic patients to fine-tune the ventilator and to evaluate the individual patient response to therapy. SUMMARY: Treating the patient with acute life-threatening hypoxemia during mechanical ventilation should begin with an evidence-based approach, with the goal of improving oxygenation and minimizing the harmful effects of mechanical ventilation. The use of advanced monitoring and the application of simple maneuvers at the bedside may assist clinicians to better individualize treatment and improve clinical outcomes. PMID- 29016367 TI - Updates in nutrition and polypharmacy. AB - PURPOSE OF REVIEW: Medications have the potential to affect nutritional status in negative ways, especially as the number of medications increase. The inter relation between polypharmacy and malnutrition is complex and not fully delineated in previous studies. More research has been done and compiled in the last year, which helps to clarify this relationship. This review brings together the most recent literature with the previous research to help healthcare providers to better assess and manage medication therapy in older adults. RECENT FINDINGS: Recent evidence confirms a synergistic negative effect of polypharmacy and malnutrition on outcomes of older adults. In addition, several drug classes, including common antihypertensive agents, acetylcholinesterase inhibitors, multivitamins, proton pump inhibitors, HMG-CoA reductase inhibitors (statins), antiplatelet agents and metformin, have been implicated in important drug nutrient interactions. These are reviewed in detail here. Ongoing research endeavors are described. SUMMARY: Healthcare practitioners can use this review to identify potentially inappropriate medications and patients at highest risk of experiencing a medication-related adverse reaction in order to systematically deprescribe these high-risk medications. PMID- 29016368 TI - Perioperative point of care ultrasound in ambulatory anesthesia: thinking beyond nerve blocks. AB - PURPOSE OF REVIEW: Ultrasound has become readily available in the perioperative area. In this review, we aim to bring forth some uses of ultrasound beyond that in regional anesthesia. RECENT FINDINGS: Critical care and emergency physicians have embraced ultrasound in their respective fields. We as anesthesiologists and practitioners of acute care medicine are not immune to this penetration. There is been a lot of recent literature on the various uses of perioperative point of care ultrasound. Our review summarizes the recent data and provides the reader with an overall idea of the uses of ultrasound in the perioperative arena. SUMMARY: Focus towards improving patient outcomes is the goal of all physicians and point of care ultrasound is one modality that can help us manage some common conditions in the perioperative period. Perioperative point of care ultrasound training may soon become a prerequisite for an anesthesiology residency. PMID- 29016369 TI - Newly developed left ventricular apical thrombus under dabigatran treatment. AB - : Left ventricular (LV) thrombi are mostly formed in the aneurysmal or akinetic segment of the LV apex. Thromboembolism to the brain is usually fatal. There is not enough information available regarding the use of these new oral anticoagulant agents in LV thrombi. In this case, we present a 56-year-old male patient who was given dabigatran (150 mg, twice a day) for paroxysmal atrial fibrillation after experiencing anterior myocardial infarction. During the use of dabigatran, thrombus formation, which was not present earlier, was observed in the LV apical aneurysm. The dabigatran treatment discontinued and warfarin was initiated and, in the follow-ups, the thrombus was observed to shrink, and complete resolution was seen 6 weeks after treatment with warfarin. The patient did not experience any thromboembolic event. Our case is the first report showing that the treatment of dabigatran 150 mg may not prevent LV thrombus development. PMID- 29016370 TI - Heavily Calcified Coronary Arteries: Advanced Calcium Subtraction Improves Luminal Visualization and Diagnostic Confidence in Dual-Energy Coronary Computed Tomography Angiography. AB - OBJECTIVES: The aim of this study was to evaluate a prototype dual-energy computed tomography calcium subtraction algorithm and its impact on luminal visualization in patients with heavily calcified coronary arteries. MATERIALS AND METHODS: Twenty-nine patients (62% male; mean age, 64 +/- 7 years) who had undergone dual-energy coronary computed tomography angiography were retrospectively included in this institutional review board-approved, Health Insurance Portability and Accountability Act-compliant study. Linearly blended (M_0.6) and calcium-subtracted images were reconstructed. Two independent observers assessed luminal visualization of the coronary arteries in a segment based analysis, subjective image quality, and diagnostic confidence using 5-point Likert scales. Contrast-to-noise ratios for both data sets were calculated. Wilcoxon testing and Cohen's kappa were used for statistical comparisons. RESULTS: Calcium-subtracted image series showed improved lumen visualization of the coronary arteries (P = 0.008), with excellent interreader agreement (mean score, 3.3; kappa = 0.82), compared with M_0.6 series (mean score, 2.9; kappa = 0.77). The calcium subtraction algorithm improved diagnostic confidence compared with the M_0.6 reconstructions (mean scores, 4.0 and 3.1, respectively; all P <= 0.002). The image quality analysis showed no significant differences between calcium-subtracted and M_0.6 data sets (subjectively: mean scores, 4.1 and 4.2, respectively, P = 0.442; objectively: mean contrast-to-noise ratio, 37.0 and 38.2, respectively, P = 0.733). CONCLUSIONS: A prototype algorithm for calcium subtraction improves coronary lumen visualization and diagnostic confidence in patients with heavy coronary calcifications without differences in conventional subjective and objective measures of image quality. PMID- 29016372 TI - The Peculiar Case of a Large Right Lower Quadrant Solitary Fibrous Tumor With Vasculature Arising from the Splenic Artery and Vein. AB - We present the interesting case of a patient with peritoneal solitary fibrous tumor (SFT). The patient initially presented with right lower quadrant pain. Computed tomography findings revealed the presence of a large mass near the cecum, with both arterial and venous blood supply arising directly from the splenic artery and vein. The patient ultimately underwent surgical excision of the mass, and pathological examination was consistent with benign SFT. Not only is the location of our patient's tumor exceedingly rare, but also, to our knowledge, it is the first reported case of SFT with such a unique vascular supply. PMID- 29016371 TI - Inflammation in bone physiology and pathology. AB - PURPOSE OF REVIEW: Bone is constantly being remodeled throughout adult life through constant anabolic and catabolic actions that maintain tissue homeostasis. A number of hormones, cytokines growth factors, and the proximity of various cells to bone surfaces influence this process. Inflammatory changes at the bone microenvironment result in alterations leading to both excessive bone loss and bone formation. Detailed understanding of the physiological and pathological mechanisms that dictate these changes will allow us to harness inflammatory signals in bone regeneration. RECENT FINDINGS: Recent reports have suggested that inflammatory signals are able to stimulate transcription factors that regulate osteoblast differentiation from their precursors. SUMMARY: In this review, we summarized current understanding of the roles of inflammation in bone resorption and bone formation, which give rise to different disorders and discuss the huge potential of harnessing these inflammatory signals to achieve bone regeneration. PMID- 29016374 TI - Triggers. PMID- 29016373 TI - Cancer Yield of Incidental Breast Lesions Detected on Chest Computed Tomography. AB - OBJECTIVE: This study aimed to determine the cancer yield for abnormal breast findings initially identified on chest computed tomography (CT). MATERIALS AND METHODS: This institutional review board-approved, Health Insurance Portability and Accountability Act-compliant study retrospectively reviewed reports of 41,217 consecutive chest CT examinations done from January 1, 2006, to December 31, 2011, to identify those with breast findings noted in the impression of the report. Examinations done for staging of newly diagnosed breast cancer were excluded. The electronic medical record was searched for any subsequent breast imaging and any corresponding pathology results. Cancer yield was calculated. RESULTS: A total of 258 chest CT examinations with abnormal breast findings were identified in 218 unique patients. Average patient age was 65.6 years (range, 30 100 years). There were 207 women and 11 men. Of these, 75 patients had follow-up breast imaging in our system. One hundred forty-three patients did not have follow-up in our system and were excluded for purposes of cancer detection rate calculation. Thirteen of 75 patients were found to have lesions that were malignant: infiltrating ductal carcinoma (8), invasive lobular carcinoma (2), lymphoma (2), and intracystic papillary cancer with atypical features (1). Four of 75 patients underwent further workup and were found to have lesions that were benign: fibroadenoma (3) and benign fibrocystic change (1). The remainder of the 58 of 75 patients had dedicated breast imaging that was classified as either Breast Imaging Reporting and Data System score 1 or 2, and no further workup was performed. Cancer yield from CT findings was 17.3%. CONCLUSIONS: Abnormal CT findings in the breast warrant additional evaluation with dedicated breast imaging to evaluate for a possible underlying malignancy. Cancer yield from CT findings in this study was 17.3%. PMID- 29016376 TI - Possible Psychosis Associated With Buprenorphine Withdrawal. PMID- 29016377 TI - Psychopharmacology Training for Psychiatry Residents: A Pilot Iterative Quality Improvement Project. PMID- 29016375 TI - The Impact of Medication Anticholinergic Burden on Cognitive Performance in People With Schizophrenia. AB - BACKGROUND: Cognitive deficits are prevalent in people with schizophrenia and associated with functional impairments. In addition to antipsychotics, pharmacotherapy in schizophrenia often includes other psychotropics, and some of these agents possess anticholinergic properties, which may impair cognition. The objective of this study was to explore the association between medication anticholinergic burden and cognition in schizophrenia. METHODS: Seven hundred five individuals with schizophrenia completed a neuropsychological battery comprising Judgment of Line Orientation Test, Wechsler Abbreviated Scale of Intelligence Matrix Reasoning, Continuous Performance Test-Identical Pairs Version, and the Brief Assessment of Cognition in Schizophrenia. Cognitive g and 3 cognitive factor scores that include executive function, memory/fluency, and speed of processing/vigilance, which were derived from a previously published analysis, were entered as cognitive variables. Anticholinergic burden was computed using 2 anticholinergic scales: Anticholinergic Burden Scale and Anticholinergic Drug Scale. Duration and severity of illness, antipsychotic dose, smoking status, age, and sex were included as covariates. RESULTS: Anticholinergic burden was associated with poorer cognitive performance in cognitive g, all 3 cognitive domains and most cognitive tasks in multivariate analyses. The associations were statistically significant, but the effect sizes were small (for Anticholinergic Burden Scale, Cohen f = 0.008; for Anticholinergic Drug Scale, Cohen f = 0.017). CONCLUSIONS: Although our results showed a statistically significant association between medications with anticholinergic properties and cognition in people with schizophrenia, the impact is of doubtful or minimal clinical significance. PMID- 29016378 TI - Synchrony and the Art of Mechanical Ventilation. PMID- 29016380 TI - Comparison of del Nido Cardioplegia With Blood Cardioplegia in Adult Combined Surgery. AB - OBJECTIVE: del Nido solution (DNS) is a single-dose cardioplegia designed for pediatric use proposed to offer superior myocardial protection in adults. However, few data support this claim. We hypothesized that DNS and modified blood cardioplegia solution (BS) provide equivalent safety in combined adult valve surgery. METHODS: Between November 2014 and December 2015, 25 patients underwent primary aortic valve replacement and concomitant coronary artery bypass grafting (CABG) with DNS. Outcomes were compared with 25 patients who underwent the same surgery with BS between September 2013 and August 2015. RESULTS: All preoperative characteristics, comorbidities, and number of CABG performed were similar between groups. One hospital death occurred in the BS group. Postoperative creatine kinase, MB isotype (16.7 +/- 5.3 MUg/L vs. 22.1 +/- 8.9 MUg/L, P = 0.011) and troponin T levels (260 +/- 105.3 ng/L vs. 370.5 +/- 218.4 ng/L, P = 0.028) were significantly lower in the DNS group. There was no difference in inotropic or vasoactive agent use (P = 0.512). Cardiopulmonary bypass times (65.5 +/- 12.5 min vs. 76.6 +/- 19.1 min, P = 0.019) and cross-clamp times (55.6 +/- 11.2 min vs. 64.3 +/- 18.9 min, P = 0.05) were lower in the DNS group but total operating room times (P = 0.198) were similar. Peak postoperative creatinine levels were similar in both groups (P = 0.063). There was no difference in postoperative outcomes including acute renal failure (P > 0.999), atrial fibrillation (P = 0.773), acute respiratory failure (P > 0.999), nor stroke or transient ischemic attack (P > 0.999). Intensive care unit stay (P = 0.213) and hospital stay (P = 0.1) did not differ between groups. CONCLUSIONS: The DNS can be used as an alternative to BS in adult concomitant aortic valve replacement + CABG surgery. This supports our hypothesis that in this specific setting, DNS provides comparable myocardial protection as BS, with possibly shorter cardiopulmonary bypass and cross-clamp times. PMID- 29016382 TI - Myocardial bridging in left main coronary artery. PMID- 29016381 TI - Randomized Study Comparing the Effect of Carbon Dioxide Insufflation on Veins Using 2 Types of Endoscopic and Open Vein Harvesting. AB - OBJECTIVE: The aim of the study was to assess whether the use of carbon dioxide insufflation has any impact on integrity of long saphenous vein comparing 2 types of endoscopic vein harvesting and traditional open vein harvesting. METHODS: A total of 301 patients were prospectively randomized into 3 groups. Group 1 control arm of open vein harvesting (n = 101), group 2 closed tunnel (carbon dioxide) endoscopic vein harvesting (n = 100) and Group 3 open tunnel (carbon dioxide) endoscopic vein harvesting (open tunnel endoscopic vein harvesting) (n = 100). Each group was assessed to determine the systemic level of partial arterial carbon dioxide, end-tidal carbon dioxide, and pH. Three blood samples were obtained at baseline, 10 minutes after start of endoscopic vein harvesting, and 10 minutes after the vein was retrieved. Vein samples were taken immediately after vein harvesting without further surgical handling to measure the histological level of endothelial damage. A modified validated endothelial scoring system was used to compare the extent of endothelial stretching and detachment. RESULTS: The level of end-tidal carbon dioxide was maintained in the open tunnel endoscopic vein harvesting and open vein harvesting groups but increased significantly in the closed tunnel endoscopic vein harvesting group (P = 0.451, P = 0.385, and P < 0.001). Interestingly, partial arterial carbon dioxide also did not differ over time in the open tunnel endoscopic vein harvesting group (P = 0.241), whereas partial arterial carbon dioxide reduced significantly over time in the open vein harvesting group (P = 0.001). A profound increase in partial arterial carbon dioxide was observed in the closed tunnel endoscopic vein harvesting group (P < 0.001). Consistent with these patterns, only the closed tunnel endoscopic vein harvesting group demonstrated a sudden drop in pH over time (P < 0.001), whereas pH remained stable for both open tunnel endoscopic vein harvesting and open vein harvesting groups (P = 0.105 and P = 0.869, respectively). Endothelial integrity was better preserved in the open vein harvesting group compared with open tunnel endoscopic vein harvesting or closed tunnel endoscopic vein harvesting groups (P = 0.012) and was not affected by changes in carbon dioxide or low pH. Significantly greater stretching of the endothelium was observed in the open tunnel endoscopic open tunnel endoscopic vein harvesting group compared with the other groups (P = 0.003). CONCLUSIONS: This study demonstrated that the different vein harvesting techniques impact on endothelial integrity; however, this does not seem to be related to the increase in systemic absorption of carbon dioxide or to the pressurized endoscopic tunnel. The open tunnel endoscopic harvesting technique vein had more endothelial stretching compared with the closed tunnel endoscopic technique; this may be due to manual dissection of the vein. Further research is required to evaluate the long-term clinical outcome of these vein grafts. PMID- 29016379 TI - Oxidative Stress, Inflammation, and Neuroprogression in Chronic PTSD. AB - Posttraumatic stress disorder is a serious and often disabling syndrome that develops in response to a traumatic event. Many individuals who initially develop the disorder go on to experience a chronic form of the condition that in some cases can last for many years. Among these patients, psychiatric and medical comorbidities are common, including early onset of age-related conditions such as chronic pain, cardiometabolic disease, neurocognitive disorders, and dementia. The hallmark symptoms of posttraumatic stress-recurrent sensory-memory reexperiencing of the trauma(s)-are associated with concomitant activations of threat- and stress-related neurobiological pathways that occur against a tonic backdrop of sleep disturbance and heightened physiological arousal. Emerging evidence suggests that the molecular consequences of this stress-perpetuating syndrome include elevated systemic levels of oxidative stress and inflammation. In this article we review evidence for the involvement of oxidative stress and inflammation in chronic PTSD and the neurobiological consequences of these processes, including accelerated cellular aging and neuroprogression. Our aim is to update and expand upon previous reviews of this rapidly developing literature and to discuss magnetic resonance spectroscopy as an imaging technology uniquely suited to measuring oxidative stress and inflammatory markers in vivo. Finally, we highlight future directions for research and avenues for the development of novel therapeutics targeting oxidative stress and inflammation in patients with PTSD. PMID- 29016384 TI - Lumen Apposing Metal Stents (LAMSs) for Drainage of Pancreatic and Gallbladder Collections: A Meta-analysis. AB - BACKGROUND AND AIMS: Endoscopic ultrasound-guided transmural drainage using lumen apposing metal stents (LAMSs) is becoming a popular and promising therapeutic approach for drainage of intra-abdominal fluid collections. There has been an increasing number of studies evaluating LAMS for drainage of pancreatic pseudocysts (PP), walled-off pancreatic necrosis (WOPN), and gallbladder (GB) drainage. The aim of this meta-analysis is to analyze the literature to date regarding the clinical success, technical success, and adverse events of LAMS in treatment of pancreatic fluid collections and GB drainage. METHODS: A comprehensive search of multiple literature databases through November 2016 was performed. Human studies with at least 10 subjects that examined the clinical success, technical success, and adverse events of LAMS in treating PP, WOPN, and GB drainage were included. RESULTS: A total of 993 patients (608-WOPN; 204-PP; 181-GB drainage) underwent drainage from 20 trials. For drainage of WOPN, the pooled technical success was 98.9% [95% confidence interval (CI): 98.2% to 99.7%] and clinical success was 90% (95% CI: 87% to 93%) (tau=0.001). For drainage of PP, the pooled technical success was 97% (95% CI: 95% to 99%) and clinical success was 98% (95% CI: 96% to 100%), (tau=0.001). For GB drainage, the pooled technical success was 95% (95% CI: 91% to 99%) and clinical success was 93% (95% CI: 90% to 97%), (tau=0.001). Total adverse events occurred in 11% of patients with higher complication rates observed in GB drainage. There was no evidence of publication bias in this meta-analysis. CONCLUSIONS: Endoscopic ultrasound-guided transmural drainage using LAMS is becoming a widely accepted therapeutic approach for the treatment of PP, WOPN, and GB drainage with high clinical and technical success rates and acceptable adverse events. Further prospective randomized trials reporting long-term clinical efficacy and cost-effectiveness are needed to validate LAMS as a therapeutic modality for pancreatic and GB collections. PMID- 29016385 TI - A history into genetic and epigenetic evolution of food tolerance: how humanity rapidly evolved by drinking milk and eating wheat. AB - PURPOSE OF REVIEW: Human exposure to wheat and milk is almost global worldwide. Yet the introduction of milk and wheat is very recent (5000-10 000 years) when compared to the human evolution. The last 4 decades have seen a rise in food allergy and food intolerance to milk and wheat. Often described as plurifactorial, the cause of allergic diseases is the result from an interplay between genetic predisposition and epigenetic in the context of environmental changes. RECENT FINDINGS: Genetic and epigenetic understanding and their contribution to allergy or other antigen-driven diseases have considerably advanced in the last few years. Yet, environmental factors are also quite difficult to identify and associate with disease risk. Can we rethink our old findings and learn from human history and recent genetic studies? SUMMARY: More than one million years separate Homo habilis to today's mankind, more than 1 million years to develop abilities to obtain food by foraging in diverse environments. One million year to adjust and fine-tune our genetic code and adapt; and only 1% of this time, 10 000 years, to face the three biggest revolutions of the human kind: the agricultural revolution, the industrial revolution and the postindustrial revolution. With big and rapid environmental changes come adaptation but with no time for fine-tuning. Today tolerance and adverse reactions to food may be a testimony of adaptation successes and mistakes. PMID- 29016383 TI - Pathogenesis of Neisseria gonorrhoeae in the female reproductive tract: neutrophilic host response, sustained infection, and clinical sequelae. AB - PURPOSE OF REVIEW: Gonorrhea is a major global health concern, caused by the bacterium Neisseria gonorrhoeae. The main clinical feature of acute gonorrhea is neutrophilic influx that is unable to clear infection. Women of reproductive age are predominantly at risk for serious sequelae of gonorrhea, including pelvic inflammatory disease, ectopic pregnancy, and infertility. This review will highlight how neutrophils are recruited to the female reproductive tract (FRT) in response to N. gonorrhoeae, how N. gonorrhoeae resists killing by neutrophils, and the connection between neutrophilic inflammation and cellular damage. RECENT FINDINGS: Epithelial cells and immune cells of the FRT recognize and respond to N. gonorrhoeae lipid A and heptose bisphosphate of lipooligosaccharide, porin, lipoproteins, and peptidoglycan fragments. N. gonorrhoeae skews the resulting immune response toward a neutrophilic, Th17-like response. N. gonorrhoeae has multiple, nonredundant mechanisms to survive inside neutrophils and in neutrophil extracellular traps. Infection that ascends to the upper FRT induces the further release of inflammatory cytokines and matrix metalloproteinases, which cause epithelial damage. SUMMARY: N. gonorrhoeae is remarkable in its ability to recruit neutrophils, yet survive in their midst. New models being developed for FRT infection with N. gonorrhoeae will be useful to reveal the mechanisms underlying these observations. PMID- 29016386 TI - Primary malignant melanoma arising in an ovarian cystic teratoma. AB - Primary malignant melanoma arising in an ovarian cystic teratoma is exceedingly rare event with an estimated incidence of 0.2-0.8%. So far, there have been approximately only 47 relevant reports. We report a case of primary malignant melanoma of the ovary arising in a cystic teratoma here. Moreover, we review systematically the disease from the following aspects, that origin, clinical characteristics, accessory examination, pathological features, diagnosis, differential diagnosis, treatment, prognosis. PMID- 29016388 TI - The Relationship Between Posttraumatic Stress Disorder and Chronic Pain in People Seeking Treatment for Chronic Pain: The Mediating Role of Psychological Flexibility. AB - OBJECTIVES: The symptoms of posttraumatic stress disorder (PTSD) and chronic pain are thought to interact to increase the severity and impact of both conditions, but the mechanisms by which they interact remain unclear. This study examines the relationship between PTSD and chronic pain and whether indices of Psychological Flexibility mediate the relationship between these 2 conditions. MATERIALS AND METHODS: Standardized self-report measures of PTSD, pain severity, pain interference, depression, and psychological flexibility (pain-related acceptance, committed action, cognitive fusion, and values-based action) were obtained from 315 people seeking treatment for chronic pain who also reported at least 1 traumatic experience. RESULTS: People seeking treatment for chronic pain and reporting symptoms consistent with a current diagnosis of PTSD had significantly higher levels of pain severity, pain interference, depression, and cognitive fusion and lower levels of pain-related acceptance and committed action than those reporting symptoms below the diagnostic threshold for PTSD. Pain-related acceptance, committed action, cognitive fusion, and depression mediated the relationship between PTSD and pain severity/interference, with pain-related acceptance being the strongest mediator from the Psychological Flexibility model. DISCUSSION: Processes from the Psychological Flexibility model were identified as mediators of the relationship between PTSD and chronic pain in people seeking treatment for chronic pain. The Psychological Flexibility model may be useful as an overarching model to help understand the relationship between PTSD and chronic pain. It is possible that targeting pain-related acceptance, committed action, and cognitive fusion (among other processes) in the treatment of chronic pain may produce corresponding improvements in comorbid symptoms of PTSD when these are present and may reduce impacts of PTSD on outcomes of chronic pain. Conversely, targeting of these processes in the treatment of PTSD may produce similar improvements for symptoms of chronic pain. Further research to evaluate these possibilities is needed. PMID- 29016387 TI - Lymphocyte-to-monocyte ratio is associated with survival in pembrolizumab-treated metastatic melanoma patients. AB - The peripheral blood lymphocyte-to-monocyte ratio (LMR) has been associated with prognosis in many malignancies including metastatic melanoma. However, it has not been studied in patients treated with immune checkpoint inhibitors. In this study, we analyzed the baseline LMR with progression-free survival (PFS) and overall survival (OS) in metastatic melanoma patients treated with pembrolizumab. A total of 133 patients with metastatic melanoma treated with pembrolizumab were included in this retrospective study. LMR was calculated from pretherapy peripheral blood counts and the optimal cutoff value was determined by a receiver operator characteristic curve. PFS and OS were evaluated using the Kaplan-Meier method and multivariate Cox proportional hazard modeling. Patients with an LMR of at least 1.7 showed improved PFS (hazard ratio=0.55; 95% confidence interval: 0.34-0.92; P=0.024) and OS (hazard ratio=0.29; 95% confidence interval: 0.15 0.59; P=0.0007). The baseline LMR is associated with PFS and OS in metastatic melanoma patients treated with pembrolizumab, and could represent a convenient and cost-effective prognostic biomarker. Validation of these findings in an independent cohort is needed. PMID- 29016389 TI - Do Changes in Sensory Processing Precede Low Back Pain Development in Healthy Individuals? AB - OBJECTIVES: Low back pain (LBP) is the most commonly reported chronic pain condition. In this study, a clinically relevant, induced-LBP paradigm was used to study sensory processing as a risk factor and predictor for LBP development in healthy people. Our aim was to examine sensory processing in those who do develop LBP and those who do not develop LBP with the paradigm, and to examine the relationships between scores on psychosocial questionnaires and sensory processing measures in these healthy people. METHODS: A total of 71 participants completed the Pain Catastrophizing Scale (PCS) and Hospital Anxiety and Depression Scale (HADS) and then took part in quantitative sensory testing. An induced-LBP paradigm, where participants stand for 2 hours and rate their low back symptoms over time, was used to classify participants as those who did develop LBP and those who did not develop LBP. RESULTS: No differences in sensory processing were identified between those who did develop LBP and those who did not develop LBP (Ps>0.05). Scores for the PCS and HADS were similar between the groups (Ps>0.05). Small significant relationships between PCS scores and cold detection and cold pain thresholds were found (rs=0.23 to 0.31; Ps<0.05) and between the pressure pain thresholds at the thenar eminence and paraspinals (r=0.53; P<0.01). DISCUSSION: These results provide evidence that altered sensory processing was not present in healthy people and thus is not a risk factor for development of LBP in standing. PMID- 29016390 TI - Response: Prescription Opioid Use and the Risk of Disability. PMID- 29016391 TI - Perioperative and Long-term Outcome of the Warshaw Technique in Laparoscopic Spleen-preserving Distal Pancreatectomy. AB - PURPOSE: The purpose of this study was to compare the safety and outcomes of laparoscopic splenic vessel preservation (Lap-SVP) to those of laparoscopic Warshaw technique (Lap-WT). MATERIALS AND METHODS: Fourteen patients underwent Lap-SVP and 5 patients underwent Lap-WT. Their clinical data and outcomes of the 2 procedures were compared. RESULTS: The operative time, intraoperative blood loss, clinically relevant pancreatic fistula, and the rate of splenic infarction were significantly higher in the patients who underwent Lap-WT than in those who underwent Lap-SVP. In both groups, the platelet count ratio and splenic volume ratio at 1 month after the operation did not differ from the preoperative values. Two patients in the Lap-WT group experienced splenic infarction, and could be observed without any treatment. CONCLUSIONS: The long-term outcome of Lap-WT was relevant. Therefore, Lap-WT could be a treatment option for patients who may not have undergone Lap-SVP. PMID- 29016393 TI - Biomechanical Implications of Training Volume and Intensity in Aging Runners. AB - : Running speed is slower in middle-age compared with younger runners due to reduced ankle but not hip and knee kinetic output. Running-specific training helps attenuate age-related declines in measures of endurance, muscle strength, and gait speed. Considering the adaptability of the human body in response to imposed stresses, maintaining training volume and intensity may play a role in modifying running biomechanics in middle-age runners. PURPOSE: To compare running biomechanics between young and middle-age runners when controlling for the confounding effects of training volume and intensity. METHODS: Fifteen middle-age runners, 15 young runners with similar training volume as the middle-age group and, 15 young runners with similar preferred training paces (i.e., intensity) as the middle-age runners participated in the study. Lower-limb joint kinetics were calculated from kinematic and ground reaction force data during overground running at a submaximal speed and compared among groups. RESULTS: Middle-age runners ran with similar peak ankle power compared with volume-matched younger runners although peak plantarflexor moment was 10.5% lower in the middle age group (P = 0.046; Cohen d = 0.78). Middle-age runners ran with similar ankle plantarflexor moment and joint power compared with training pace-matched young runners. As expected, no age-related differences were observed in hip and knee kinetics when training volume or pace were matched between age groups. These results suggest that training pace may be more effective in attenuating age related declines in plantarflexor kinetics in middle-age runners. CONCLUSIONS: From these findings, we propose the hypothesis that both training volume and training pace may play a role in maintaining plantarflexor kinetics but that training pace may have a greater impact on ankle plantarflexor kinetics in middle age runners. PMID- 29016392 TI - Increased Walking's Additive and No Substitution Effect on Total Physical Activity. AB - PURPOSE: We assessed the associations between a change in time spent walking and a change in total physical activity (PA) time within an urban living adult sample to test for additive or substitution effects. METHODS: Participants living in the greater Seattle area were assessed in 2008-2009 and again 1-2 yr later (2010 2011). At each time point, they wore accelerometers and GPS units and recorded trips and locations in a travel diary for seven consecutive days. These data streams were combined to derive a more objective estimate of walking and total PA. Participants also completed the International Physical Activity Questionnaire to provide self-reported estimates of walking and total PA. Regression analyses assessed the associations between within-participant changes in objective and self-reported walking and total PA. RESULTS: Data came from 437 participants. On average, a 1-min increase in total walking was associated with an increase in total PA of 1 min, measured by objective data, and 1.2-min, measured by self reported data. A similar additive effect was consistently found with utilitarian, transportation, or job-related walking, measured by both objective and self reported data. For recreational walking, the effect of change was mixed between objective and self-reported results. CONCLUSION: Both objective and self-reported data confirmed an additive effect of utilitarian and total walking on PA. PMID- 29016394 TI - miR-20b/106a modulate Ngn2 gene expression during neural differentiation of human umbilical cord mesenchymal stem cells. AB - The aim of this study was to perform neural differentiation of mesenchymal stem cells derived from Wharton's jelly of human umbilical cord (HUMSCs) and explore the role of miR-20b and miR-106a, which may regulate Neurogenin-2 (Ngn2) expression during the neural differentiation. HUMSCs were cultured and induced in vitro. The cells were stained for nestin and microtubule-associated protein 2 (MAP2) by immunofluorescence. The interactional binding sites between the 3' untranslated region (3'-UTR) of Ngn2 mRNA and miR-20b or miR-106a were predicted by bioinformatics and identified by a dual-luciferase assay. The expressions of Ngn2, miR-20b, and miR-106a were determined by real-time PCR and western blot before and after the neural differentiation. After infection of miR-20b or miR 106a, the expressions of Ngn2, MAP2, and beta III-tubulin (TUBB3) were measured. HUMSCs showed a uniform pattern with a typical short spindle-shaped morphology. Fourteen days after neural differentiation, HUMSCs showed neuronal traits of pyramidal appearance. TargetScan and miRanda showed that miR-20b and miR-106a were well complementary with Ngn2 3'-UTR. Identified by the dual-luciferase assay, we found that miR-20b and miR-106a inhibit Ngn2 expression by binding to its 3'-UTR. Furthermore, the expression of Ngn2 mRNA was almost reciprocal to that of miR-20b and miR-106a by real-time PCR during the neural differentiation of HUMSCs. Overexpression of miR-20b and miR-106a downregulated the expressions of Ngn2, MAP2, and TUBB3. miR-20b and miR-106a may directly or indirectly regulate neuronal genes expression to modulate the neural differentiation of HUMSCs. PMID- 29016396 TI - State Variation in Quality Outcomes and Disparities in Outcomes in Community Health Centers. AB - BACKGROUND: Prior studies have reported that community health centers perform as well as other sites of care, despite serving more vulnerable patient populations. However, there is little prior study of geographic variation in quality outcomes and disparities in outcomes in this setting. Quantifying geographic variation is important so as to target quality improvement efforts and funding and to learn from states where total quality is highest and racial/ethnic disparities are lowest. OBJECTIVES: To estimate between-state variation in hypertension, diabetes, and pregnancy outcomes and racial/ethnic disparities in these outcomes for health center patients. METHODS: Using data on all US health centers from 2010 to 2014 (N=1047 health centers/year, or 21.2 million patients in 2014), we used linear regression models to estimate adjusted quality outcomes and racial/ethnic disparities in quality outcomes by state for hypertension control, diabetes control, and normal birthweight. RESULTS: We found wide variation in both outcomes and racial/ethnic disparities in outcomes between states for patients seen at health centers. For instance, between states, the mean proportion of patients with hypertension control ranged from 58% to 70% for white patients, from 49% to 64% for black patients, and from 53% to 74% for Hispanic patients (P<0.001). Racial/ethnic disparities in outcomes ranged from negative or nonsignificant in some states to positive in others. CONCLUSIONS: Wide variation in health center patient outcomes and disparities in outcomes is observed between states. This variation suggests that policymakers should target funding and interventions to underperforming states, and identify determinants of high quality in higher performing states. PMID- 29016395 TI - Neighborhood Socioeconomic Status Predicts Health After Hospitalization for Acute Coronary Syndromes: Findings From TRACE-CORE (Transitions, Risks, and Actions in Coronary Events-Center for Outcomes Research and Education). AB - OBJECTIVE: To explore the influence of contextual factors on health-related quality of life (HRQoL), which is sometimes used as an indicator of quality of care, we examined the association of neighborhood socioeconomic status (NSES) and trajectories of HRQoL after hospitalization for acute coronary syndromes (ACS). METHODS: We studied 1481 patients hospitalized with acute coronary syndromes in Massachusetts and Georgia querying HRQoL via the mental and physical components of the 36-item short-form health survey (SF-36) (MCS and PCS) and the physical limitations and angina-related HRQoL subscales of the Seattle Angina Questionnaire (SAQ) during hospitalization and at 1-, 3-, and 6-month postdischarge. We categorized participants by tertiles of the neighborhood deprivation index (a residence-census tract-based measure) to examine the association of NSES with trajectories of HRQoL after adjusting for individual socioeconomic status (SES) and clinical characteristics. RESULTS: Participants had mean age 61.3 (SD, 11.4) years; 33% were female; 76%, non-Hispanic white; 11.2% had household income below the federal poverty level. During 6 months postdischarge, living in lower NSES neighborhoods was associated with lower mean PCS scores (1.5 points for intermediate NSES; 1.8 for low) and SAQ scores (2.4 and 4.2 points) versus living in high NSES neighborhoods. NSES was more consequential for patients with lower individual SES. Individuals living below the federal poverty level had lower average MCS and SAQ physical scores (3.7 and 7.7 points, respectively) than those above. CONCLUSIONS: Neighborhood deprivation was associated with worse health status. Using HRQoL to assess quality of care without accounting for individual SES and NSES may unfairly penalize safety-net hospitals. PMID- 29016398 TI - Low-Intensity Pulsed Ultrasound Stimulation for Tendon-Bone Healing: A Dose Dependent Study. AB - OBJECTIVE: The aim of the study was to evaluate the dosage effect of low intensity pulsed ultrasound stimulation on tendon-bone healing. DESIGN: Standard partial patellectomies were performed on 120 mature New Zealand rabbits randomly assigned into the following three groups: a control group (daily mock sonication, 20 mins), a qd group (daily ultrasonication, 20 mins), and a bid group (ultrasonication twice a day, 20 mins each time). The rabbits were killed 8 or 16 wks postoperatively, and the microarchitectural, histological, and mechanical properties of the patella-patellar tendon interface were evaluated. RESULTS: Microcomputed tomography analysis showed that the bid group exhibited more new bone formation and mineralization than the other groups in the tendon-bone healing position at both 8 and 16 wks postoperatively. Histological assessments confirmed that the bid group exhibited a significantly better patella-patellar tendon interface than the other groups, as shown by the increased formation and remodeling of newly formed bone and a fibrocartilage layer. The biomechanical properties of the regenerated patella-patellar tendon interface significantly improved in the bid group. CONCLUSIONS: Low-intensity pulsed ultrasound stimulation treatment twice a day was more effective than the once-a-day treatment on tendon-bone healing. PMID- 29016397 TI - Feasibility and Reliability of Functional Muscle Tests in Lung Transplant Recipients. AB - OBJECTIVE: This study investigates the feasibility, reliability, and correlations of recommended functional tests in lung transplant recipients shortly after surgery. DESIGN: This is an observational study. METHODS: Fifty patients (28 females) performed well-standardized maximum isometric back extension in a sitting position, handgrip strength, and Biering-Sorensen endurance tests shortly before discharge from the acute hospital, shortly thereafter, and 2 mos later after subacute rehabilitation. RESULTS: Back extension testing was well feasible, but only two thirds of the patients could perform the Biering-Sorensen test at baseline and they experienced a greater number of minor but no major adverse events. Absolute reliability measures and the intraclass correlation coefficients were excellent for the strength (0.97-0.98 [0.95-0.99]) and good for the endurance tests (0.69 [0.26-0.87]). Handgrip revealed high correlation with back strength (>=0.75) but not with Biering-Sorensen scores. CONCLUSIONS: Well controlled maximum back strength testing is feasible and reliable, and the scores are highly correlated with grip strength in lung transplant recipients shortly before hospital discharge. The Biering-Sorensen test should be limited to patients without dominant weakness and/or fear. Future research should investigate whether grip instead of back extension strength can safely be used for proper exercise prescription. PMID- 29016399 TI - Heart-Shaped Sign: A Rare Stroke Syndrome. PMID- 29016400 TI - Alterations in the Mechanical Response of Deep Dorsal Neck Muscles in Individuals Experiencing Whiplash-Associated Disorders Compared to Healthy Controls: An Ultrasound Study. AB - OBJECTIVE: The aim of this study was to investigate and compare the mechanical responses of dorsal neck muscles in individuals with whiplash-associated disorders (WAD) versus healthy individuals. DESIGN: This study included 36 individuals with WAD (26 women and 10 men) and 36 healthy controls (26 women and 10 men). Ultrasound imaging with speckle tracking was used to measure deformation and deformation rate in five dorsal neck muscles during a neck extension task. RESULTS: Compared with controls, individuals with WAD showed higher deformations of the semispinalis cervicis (P = 0.02) and multifidus (P = 0.002) muscles and higher deformation rates (P = 0.03 and 0.0001, respectively). Among individuals with WAD, multifidus deformation and deformation rate were significantly associated with pain, disability, and fatigue (r = 0.31-0.46, P = 0.0001-0.01). CONCLUSIONS: These findings indicate that the mechanical responses of the deep dorsal neck muscles differ between individuals with WAD and healthy controls, possibly reflecting that these muscles use altered strategies while performing a neck extension task. This finding provides new insight into neck muscles pathology in patients with chronic WAD and may help improve rehabilitation programs. TO CLAIM CME CREDITS: Complete the self-assessment activity and evaluation online at http://www.physiatry.org/JournalCME CME OBJECTIVES: Upon completion of this article, the reader should be able to: (1) Summarize the mechanical responses of dorsal neck muscles during loading of the neck muscles via an extension task in individuals with chronic whiplash associated disorders and healthy volunteers; (2) Differentiate mechanical responses between five dorsal neck muscles while loading the neck via an extension task; and (3) Describe the relationships between the mechanical responses of the dorsal neck muscles with the patients' perception of neck pain, disability, and fatigue. LEVEL: Advanced ACCREDITATION: The Association of Academic Physiatrists is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.The Association of Academic Physiatrists designates this Journal-based CME activity for a maximum of 0.5 AMA PRA Category 1 Credit(s)TM. Physicians should only claim credit commensurate with the extent of their participation in the activity. PMID- 29016401 TI - Evaluation of the Effectiveness of Neuromuscular Electrical Stimulation After Total Knee Arthroplasty: A Meta-Analysis. AB - OBJECTIVE: The aim of the study was to evaluate the efficacy of the use of the neuromuscular electrical stimulation after total knee arthroplasty. DESIGN: The study used a systematic review of randomized controlled trials (MEDLINE, PubMed, Cochrane Library, and PEDro) using Patient Population or Problem, Intervention, Comparison, Outcomes, Setting approach to formulate the research question, controlled terms, and Boolean operators. Inclusion and exclusion criteria were defined in advance. "Neuromuscular electrical stimulation" and "total knee arthroplasty" were used as keywords. The overall risk of bias was determined according to the following: random sequence generation, concealment, blinding mass of participants and staff, commissioning blind assessment results, incomplete data, and loans received. RESULTS: Of the 36 identified studies, six were included in the review (496 participants). In these studies, one group of patients followed a rehabilitation protocol (control group) and the other followed a rehabilitation program plus a session of neuromuscular electrical stimulation (neuromuscular electrical stimulation group). Patients of neuromuscular electrical stimulation groups got the best scores (timed up and go test, stair climbing test, and walk test). Neuromuscular electrical stimulation benefits were strong in the first postoperative weeks/months and gradually diminished. CONCLUSIONS: Neuromuscular electrical stimulation allows a slightly better functional recovery after total knee arthroplasty, especially in the first period, with more evident benefits in patients with a severe lack of muscular activation. Nevertheless, there is no difference at medium-long term. PMID- 29016402 TI - Disability and Health Consequences of Traumatic Brain Injury: National Prevalence. AB - OBJECTIVE: The aim of the study was to measure the prevalence of traumatic brain injury (TBI)-related disability and health status in the general population. DESIGN: The French National Survey, conducted in households and institutions, assessed 33,896 adults. Data included sequelae from TBI, impairments, current health conditions, and uses of health services. Analyses, adjusted for age and sex, compared subjects who declared sequelae from TBI (n = 479) with the remaining survey population (n = 33,287). Use of weighting factors ensured that results were representative of the national population. RESULTS: Prevalence of persistent sequelae from TBI in France was 704/100,000. Median time since injury was 14 yrs. For all Core Set items of the International Classification of Functioning, subjects with TBI reported more impairments than the control population: adjusted odds ratios from 1.7 (behavioral difficulties) to 8.6 (motor difficulties). Rates of cardiovascular, respiratory, musculoskeletal, digestive, urological, neurological, and psychiatric conditions were higher in the TBI population. Use of health services was greater, and women with TBI had higher rates of unmet health needs. CONCLUSIONS: Persistent sequelae from TBI significantly affect health in the general population. Planning of post-TBI care should address the chronic needs of these persons. PMID- 29016403 TI - The Influence of Tumor Stage on the Prognostic Value of Ki-67 Index and Mitotic Count in Small Intestinal Neuroendocrine Tumors. AB - Tumor cell proliferation rate determined by either Ki-67 index or mitotic count (MC) has shown to be a prognostic factor for gastrointestinal neuroendocrine tumors in general, and after its incorporation in the 2010 World Health Organization tumor grading system, it has become essentially mandatory in pathology reports for all gastrointestinal neuroendocrine tumors, regardless of tumor location. Nevertheless, clinical significance for the Ki-67 index or MC has not been well demonstrated in small intestinal neuroendocrine tumor (SINET), especially those without distant metastasis, the majority of which have very low proliferation rates. We assessed the clinical behavior of 130 SINETs in relation to stage, Ki-67 index, MC, and other pathologic features. Most SINETs (86%) were grade 1 and 14% were grade 2. There were no grade 3 tumors or poorly differentiated neuroendocrine carcinomas. On multivariate analysis, age, Ki-67 index >5%, MC >10/50 high-power field, stage IV, and liver metastases were associated with increased risk of death in all patients. When both stage and grade were considered, Ki-67 index >5% was associated with a nearly 4-fold increased risk of death in stage IV cases (n=60). In contrast, Ki-67 index did not show prognostic value for patients with stages I to III disease (n=70), although MC >1/50 high-power field was significantly associated with death on multivariable analysis. Our study confirms that liver metastasis and increased tumor cell proliferation rate are independent prognostic factors for SINETs, but shows that most SINETs have a very low proliferation rate, which limits its value for predicting tumor behavior. By combining staging and grading information, we demonstrate different roles and cutoff values of Ki-67 index and MC in SINET with different stages. PMID- 29016405 TI - Definition of Barrett Esophagus in the United States: Support for Retention of a Requirement for Goblet Cells. AB - Barrett esophagus (BE) predisposes patients to the development of esophageal adenocarcinoma (EAC). However, the global definition of BE is controversial. Pathologists in Europe and the United States require intestinal metaplasia (IM) within columnar-lined mucosa (CLM) in the tubular esophagus to diagnose BE, whereas in the UK and Japan only the presence of CLM is required. To aid in establishing an appropriate definition for BE, we evaluated whether IM accompanies EAC in a US patient cohort. We examined a series of 139 consecutive patients who underwent endoscopic mucosal resections or esophagectomies for EAC performed at a US tertiary care center. The resection specimens were evaluated for the presence (IM+) or absence (IM-) of IM within CLM. Ninety-seven (70%) patients were IM+. Tumors found in IM- patients tended to be advanced at the time of resection (57% pT3 or greater, IM-; 31% pT3 or greater, IM+; P=0.02) such that the tumor may have "overgrown" zones of IM. We hypothesized that changes as a result of neoadjuvant chemotherapy or radiation might mask preexisting IM. When evaluating this hypothesis, we found that 34 of 39 of treatment-naive patients were IM+. Two of the 5 IM- patients had prior IM+ biopsies resulting in 92% of treatment-naive patients who were IM+. In our US hospital population, CLM with IM in the tubular esophagus is found in association with EAC in 70% to 92% of patients. We believe that based on these data the United States definition of BE should continue to require the presence of IM. PMID- 29016404 TI - Hepatobiliary Mucinous Cystic Neoplasms With Ovarian Type Stroma (So-Called "Hepatobiliary Cystadenoma/Cystadenocarcinoma"): Clinicopathologic Analysis of 36 Cases Illustrates Rarity of Carcinomatous Change. AB - The literature is highly conflicting on hepatobiliary mucinous cystic neoplasms (MCNs), aka "hepatobiliary cystadenoma/cystadenocarcinoma," largely because ovarian stroma (OS) was not a requirement until WHO-2010 and is not widely applied even today. In this study, MCNs (with OS) accounted for 24 of 229 (11%) resected hepatic cysts in one institution. Eight of the 32 (25%) cysts that had been originally designated as hepatobiliary cystadenoma/cystadenocarcinoma at the time of diagnosis proved not to have an OS during this review and were thus re classified as non-MCN. In total, 36 MCNs (with OS) were analyzed-24 from the institutional files and 12 consultation cases. All were women. Mean age was 51 (28 to 76 y). Mean size was 11 cm (5 to 23 cm). Most (91%) were intrahepatic and in the left lobe (72%). Preoperative imaging mentioned "neoplasm" in 14 (47%) and carcinoma was a differential in 6 (19%) but only 2 proved to have carcinoma. Microscopically, only 47% demonstrated diffuse OS (>75% of the cyst wall/lining); OS was often focal. The cyst lining was often composed of non-mucinous biliary epithelium, and this was predominant in 50% of the cases. Degenerative changes of variable amount were seen in most cases. In situ and invasive carcinoma was seen in only 2 cases (6%), both with small invasion (7 and 8 mm). Five cases had persistence/recurrence, 2 confirmed operatively (at 7 mo and 15 y). Of the 2 cases with carcinoma, one had "residual cyst or hematoma" by radiology at 4 months, and the other was without disease at 3 years. In conclusion, many cysts (25%) previously reported as hepatobiliary cystadenoma/cystadenocarcinoma are not MCNs. True MCNs are uncommon among resected hepatic cysts (11%), occur exclusively in females, are large, mostly intrahepatic and in the left lobe (72%). Invasive carcinomas are small and uncommon (6%) compared with their pancreatic counterpart (16%). Recurrences are not uncommon following incomplete excision. PMID- 29016406 TI - Visualization of Immune Responses in the Cornea. AB - The eye has become a useful site for the investigation and understanding of local and systemic immune responses. The ease of access and transparency of the cornea permits direct visualization of ocular structures, blood vessels, and lymphatic vessels, allowing for the tracking of normal and pathological biological processes in real time. As a window to the immune system, we have used the eye to dissect the mechanisms of corneal inflammatory reactions that include innate and adaptive immune responses. We have identified that the ocular microenvironment regulates these immune responses by recruiting different populations of inflammatory cells to the cornea through local production of selected chemokines. Moreover, crosstalk between T cells and macrophages is a common and crucial step in the development of ocular immune responses to corneal alloantigens. This review summarizes the data generated by our group using intravital fluorescent confocal microscopy to capture the tempo, magnitude, and function of innate and adaptive corneal immune responses. PMID- 29016407 TI - A Novel Entity of Corneal Diseases with Irregular Posterior Corneal Surfaces: Concept and Clinical Relevance. AB - Various corneal diseases, such as hereditary corneal dystrophies, corneal infection, and bullous keratopathy, cause corneal opacity, scarring, and edema, leading to severely decreased visual acuity and loss of vision. These diseases were regarded as corneal opacity diseases, and the decreased visual acuity was considered to be predominantly caused by corneal opacity. The influence of corneal irregular astigmatism on vision has been poorly understood to date, mainly because accurate quantification of irregular astigmatism has been technically challenging. We have performed detailed analyses of the corneal higher-order aberrations (HOAs) of the anterior and posterior surfaces and total cornea in corneal diseases, using an anterior segment imaging system combined with a ray-tracing method. Subsequently, we conducted correlation analyses between corneal HOAs and visual acuities and characterized the typical HOA patterns in the corneal diseases. Our recent studies demonstrated that corneal HOAs directly degrade visual acuity in eyes with mild-to-moderate corneal opacities, such as corneal dystrophies, corneal scarring, and bullous keratopathy. The findings also suggested that correction of corneal HOAs using rigid gas-permeable contact lenses is effective in eyes with a smooth posterior surface and useful in certain patients with corneal scarring to some extent. Our data will be useful for decision making regarding surgical interventions, based on the amount of corneal HOAs. Our results further indicate the clinical relevance of irregular astigmatism in the posterior surfaces in assessing the visual function of eyes with various corneal diseases. PMID- 29016408 TI - Family-Initiated Pediatric Rapid Response: Characteristics, Impetus, and Outcomes. AB - BRIEF DESCRIPTION: Family-initiated rapid response (FIRR) empowers families to express concern and seek care from specialized response teams. We studied FIRRs that occurred in a pediatric tertiary hospital over a 3-year period. The main aims were to describe the characteristics and outcomes of FIRRs and compare them with clinician-activated RRs (C-RRs). Of the 1,906 RRs events reviewed, 49 (2.6%) were FIRRs. All FIRRs had appropriate clinical triggers with the most common being uncontrolled pain. Chronic conditions and previous admissions were present in 61%. More than half of FIRRs had a vital sign change that should have qualified C-RR activation. Seventy-six percent FIRRs needed at least one or more interventions. Twenty-seven percent of FIRRs needed transfer to intensive care unit compared with 60% transfer rate for C-RRs. PURPOSE OF SUBMISSION/RELEVANCE TO HEALTHCARE QUALITY: Family-initiated rapid response events were activated for legitimate concerns and frequently needed clinical interventions. Enhanced information and awareness of FIRR can improve utilization of the system and enhance family satisfaction, patient safety, and outcomes. Disseminating the information on FIRR and the importance of family involvement will improve the care of children and empower family members. PMID- 29016409 TI - Anterior Ischemic Optic Neuropathy Due to Calciphylaxis. AB - A 72-year-old woman experienced anterior ischemic optic neuropathy in her left eye. The funduscopic and fluorescein angiographic findings were strongly suggestive of giant cell arteritis. Temporal artery biopsy revealed extensive calcification in the vessel wall consistent with calciphylaxis. This unusual disorder should be considered in the differential diagnosis of anterior ischemic optic neuropathy, particularly the arteritic form. PMID- 29016410 TI - Type I Dural Arteriovenous Fistula Mimicking Dural Venous Thrombosis-Related Intracranial Hypertension. PMID- 29016411 TI - Vanishing Act: Gorham-Stout Disease Leading to Dynamic Cerebrospinal Fluid Abnormalities. PMID- 29016412 TI - False Lung Metastasis: Concurrent Ewing Sarcoma and Minimally Invasive Adenocarcinoma. AB - Pediatric lung cancer is a very rare occurrence, particularly as a primary lesion. A concurrent diagnosis is even more unusual and only reported a handful of times in Ewing sarcoma. Our patient is a 13-year-old boy who had concurrent diagnoses of Ewing sarcoma and minimally invasive adenocarcinoma of the lung, formerly bronchoalveolar carcinoma. To our knowledge this has also been found in at least 1 other case. There are some classic genetic mutations associated with Ewing sarcoma. None have been found to be linked with the concurrent diagnosis. A biological linkage is worth considering. PMID- 29016413 TI - Femoral Vein Catheter is an Important Risk Factor for Catheter-related Thrombosis in (Near-)term Neonates. AB - Central venous catheters (CVCs) in neonates are associated with an increased risk of thrombosis. Most reports focus on umbilical venous catheters (UVCs) and peripherally inserted central catheters (PICCs), whereas data available on femoral venous catheters (FVCs) are limited. We performed a retrospective cohort study in all neonates (gestational age >=34 wk) with CVCs. The primary outcome was the occurrence of thrombosis in CVCs. The secondary outcomes were possible risk factors for thrombosis, the thrombotic incidence in FVCs, UVCs, and PICCs, and clinical aspects of thrombosis in these groups. A total of 552 neonates received a total of 656 catheters, including 407 (62%) UVCs, 185 (28%) PICCs, and 64 (10%) FVCs. Thrombosis was detected in 14 cases, yielding an overall incidence of 2.1% or 3.6 events per 1000 catheter days. FVC was significantly associated with the occurrence of thrombosis when compared with UVC (P=0.02; odds ratio, 3.8; 95% confidence interval, 1.2-12.0) and PICC (P=0.01; odds ratio, 8.2; 95% confidence interval, 1.6-41.7). The incidence of thrombosis was higher in FVCs than in UVCs and PICCS, that is, 7.8% (5/64), 1.7% (7/407), and 1.1% (2/185), respectively (P<0.01). The number of thrombotic events per 1000 catheter days was 12.3 in FVCs, 3.2 in UVCs, and 1.5 in PICCs (P<0.05). We concluded that thrombosis occurs more frequently in FVCs than in other CVCs. PMID- 29016414 TI - Prenatal Diagnosis of a Melanotic Neuroectodermal Tumor of Infancy (MNTI): A Case Report With a Favorable Outcome After Chemotherapy Failure and Incomplete Resection. AB - We present the case of a woman referred to our department at 34 weeks of pregnancy with a fetal ultrasonographic scan showing a mass that had developed within the right maxilla with invasion of the orbit. A retrospective examination showed that this tumor had been present since the 12th week of pregnancy. At 39+4 weeks of gestation, a boy was born. He presented a black firm aspect in the maxilla. A computed tomographic scan and magnetic resonance imaging revealed a soft tissue swelling over the right maxilla, extending into the orbit but without invasion of the globe. Surgical biopsy confirmed a melanotic neuroectodermal tumor of infancy. The pathologic examination did not show any neuroblast-like component on the hematoxylin eosin saffron staining. Because of the extension and the size of the lesion, neoadjuvant chemotherapy was carried out. At day 21, the patient received 1 cycle of low-dose cyclophosphamide and vincristine, 2 cycles of etoposide and carboplatin, and thereafter 1 cycle of cyclophosphamide, adriamycin, and vincristin because the lesion kept growing. After stabilization of the size of the tumor, at 4 months, a maxillectomy and partial resection of the orbital floor and lateral orbital wall was performed on the patient. As a complete resection would have required orbital exenteration, surgery was performed deliberately incomplete leaving a macroscopic residue (R2). At 2.5 years of follow-up, the patient showed complete remission with no lesions evident on magnetic resonance imaging. PMID- 29016415 TI - Prognostications in Health Care. AB - There are health care issues that have been around for decades, which may likely continue: rationed health care, rising costs, patient safety, ageing populations, and transitional care techniques. Current issues include these, plus their evolutionary variations such as new technologies, the changing health care landscape, and subsequent emerging ethical issues. Where will it all go? No one knows. PMID- 29016416 TI - The New Age of Bullying and Violence in Health Care: Part 3: Managing the Bullying Boss and Leadership. AB - PURPOSE/OBJECTIVES: PRIMARY PRACTICE SETTING(S):: Applicable to all health care sections where case management is practiced. FINDINGS/CONCLUSIONS: This article is the third of a 4-part series on the topic of bullying in the health care workplace. Part 3 addresses the dimensions of the bullying boss and leadership, posing major implications for patient safety plus the mental health of staff members. The complex constructs and dynamics broached by the bullying boss and department leadership are explored. These include the underlying forces at play such as power, gender, leadership styles, plus weaves in assessment models. Strategic and proactive management of bullying by leadership is vital to workforce retention and well-being. IMPLICATIONS FOR CASE MANAGEMENT PRACTICE: The increasing incidence and impact of bullying across all sectors have made it a major workforce performance management challenge. Health care settings are especially tense environments, often making it difficult for individuals to distinguish between bullying behavior and high expectations for staff. Bullying impacts both direct targets and bystanders who witness the assaultive behaviors, with ethical implications as well.Case management is poised to promote a safe health care workplace for patients and practitioners alike amid these intricate circumstances. Understanding types of bullying bosses and leadership styles is integral to a case manager's success in the workplace. PMID- 29016418 TI - Improving Posthospital Discharge Telephone Reach Rates Through Prehospital Discharge Face-to-Face Meetings. AB - PURPOSE OF THE STUDY: The purpose of this study was to determine whether a face to-face meeting with patients by a telephonic case manager prehospital discharge would result in increased telephone follow-up (TFU) reach rates posthospital discharge. PRIMARY PRACTICE SETTING: Acute care adult medicine inpatient units. METHODOLOGY AND SAMPLE: A quasiexperimental design was utilized. Two adult inpatient medicine units were selected as the intervention and comparison groups. The framework of the study is the transitions theory. A convenience sampling technique was used, whereby 88 eligible patients on the intervention unit received face-to-face meetings prehospital discharge whereas 123 patients on the comparison unit received standard care (no face-to-face meetings). Cross tabulation and chi-square tests were employed to examine the association of face to-face meeting intervention and TFU reach rates. RESULTS: Implementing brief (<10 min) face-to-face meetings by a telephonic case manager prehospital discharge resulted in a TFU reach rate of 87% on the intervention unit, whereas the comparison unit only had a 58% TFU reach rate (p < .001). IMPLICATIONS FOR CASE MANAGEMENT PRACTICE: Increasing reach rates by a telephonic case manager facilitates communication with more patients posthospital discharge. A brief prehospital discharge face-to-face meeting with patients assisted them to understand the reasons for a posthospital discharge telephone call, identified the best times to call using accurate telephone numbers, and taught patients how best to prepare for the call. In addition, by meeting patients face-to-face, the telephonic case manager was no longer an unknown person on the telephone asking them questions about their medical condition. These factors combined may have significantly helped to increase TFU reach rates. PMID- 29016421 TI - Know Who Your People Are. PMID- 29016420 TI - Prevention Strategies in Post-TBI Depression in Older Adults: A Case Study. AB - PURPOSE: The purpose of this study was to describe a theoretically focused intervention aimed toward chronic stress and depressive symptom management that is coordinated by a case manager and delivered within a home environment by the caregiver. PRIMARY PRACTICE SETTING: Home care, community setting. METHODS: A case study of an older adult with traumatic brain injury (TBI) secondary to a fall who had significant allostatic load at the time of his injury. "Allostatic load" is a theoretical construct that suggests the brain is experiencing chronic strain on its systems that flexibly respond to stressors. Sustained allostatic load can contribute to chronic conditions and poor outcomes. FINDINGS: Through actions with the family as caregivers, the case manager was able to coordinate a structured home setting and gradual resumption of social activities for this older adult. Focus was on establishing structure, meaningful social interactions, and positive home experiences that maximized the older adult's interests and capacity and mitigated chronic stress. Gradually, the older adult returned to his preinjury capacity and lives independently within the family home. IMPLICATIONS FOR CASE MANAGEMENT PRACTICE: The case management process has the potential to mitigate stressors and improve depression management through family-focused care. Although there is limited guidance on prevention of depression, this approach resulted in attainment of safe home care, no hospital readmissions, and return to previous lifestyle for the older adult. This could be useful in the prevention of post-TBI depression. PMID- 29016422 TI - Professional Case Managers Modeling the Way: The Case Management Model Act. PMID- 29016423 TI - Multistate Licensure Paves the Way for Greater Access to Telephonic Case Management. PMID- 29016424 TI - Travel and the Professional Case Manager. PMID- 29016426 TI - The Epidemiology of Brachial Plexus Birth Palsy in the United States: Declining Incidence and Evolving Risk Factors. AB - BACKGROUND: The epidemiology of brachial plexus birth palsy (BPBP) in the United States may be changing over time due to population-level changes in obstetric care. METHODS: The Kids' Inpatient Database from 1997 to 2012 was analyzed. Annual estimates of BPBP incidence and disease determinant distribution were calculated for the general population and the study population with BPBP. Long term trends were analyzed. A multivariate logistic regression model was used to quantify the risk associated with each determinant. RESULTS: The database yielded a combined total of 5,564,628 sample births extrapolated to 23,385,597 population births. The population incidence of BPBP dropped 47.1% over the 16-year study period, from 1.7 to 0.9 cases per 1000 live births (P<0.001). Female, black, and Hispanic subgroups had moderately increased risks of BPBP. Among children with BPBP, 55.0% had no identifiable risk factor. Shoulder dystocia was the strongest risk factor for BPBP in the regression model [odds ratio (OR), 113.2; P<0.001], although the risk of sustaining a BPBP in the setting of shoulder dystocia decreased from 10.7% in 1997 to 8.3% in 2012 (P=0.006). Birth hypoxia was independently associated with BPBP (OR, 3.1; P<0.001). Cesarean delivery (OR, 0.16; P<0.001) and multiple gestation birth (OR, 0.45; P<0.001) were associated with lower incidence of BPBP. Notably, the rate of cesarean delivery increased by 62.8% during the study period, from 20.9% in 1997 to 34.0% in 2012 (P<0.001). CONCLUSIONS: Over a 16-year period, the incidence of BPBP fell dramatically, paralleled by a significant increase in the rate of cesarean delivery. Systemic changes in obstetric practice may have contributed to these trends. As more than half of BPBP cases have no identifiable risk factor, prospective investigation of established risk factors and characterization of new disease determinants are needed to more reliably identify infants at greatest risk. Racial and geographic inequalities in disease burden should be investigated to identify interventional targets. LEVEL OF EVIDENCE: Level III-case series. PMID- 29016425 TI - Diagnostic value of 99mTc-ubiquicidin scintigraphy in differentiation between osteomyelitis and bone tumors. AB - AIM: The differentiation of osteomyelitis from bone tumors is of great importance in clinical decision-making; however, the features of both osteomyelitis and bone tumors are noncontributory. Tc-ubiquicidin scintigraphy is a new promising method with the ability to specifically localize the infection site by bacterial cell membrane binding. This study aimed to evaluate the ability of this radiopeptide for the differentiation of these two entities. PATIENTS AND METHODS: Thirty consecutive patients (mean age=20.9 years) suspected of having either osteomyelitis or bone tumor were included in this prospective study. A Tc-UBI scan was performed in both dynamic and static phases and the images were assessed qualitatively and semiquantitatively. The final diagnosis was established for 29 patients on the basis of surgical findings and microbiological and pathology assessments as well as any other clinical, laboratory, or imaging findings during patient follow-up. RESULTS: The final diagnosis was infectious and noninfectious processes in 19 and 10 patients, respectively. Visual assessment could not distinguish between osteomyelitis and bone tumors. However, the time-activity pattern of the images proved to be promising. The sensitivity, specificity, negative and positive predictive value, and accuracy of the time-activity curve for osteomyelitis were 73.6 (54-93), 100, 66.6 (43-91), 100, and 82%, respectively. The mean+/-SD tumor/nontumor (T/NT) ratios for 30 min images were 2.22+/-0.45 and 2.02+/-0.51 for infectious and noninfectious processes, respectively (P=0.29). Using a cutoff value of 0.97 for the T/NT ratio, the sensitivity and specificity were calculated to be 78.9 and 50%, respectively. CONCLUSION: Although Tc-UBI scintigraphy in the dynamic imaging format was very useful with high accuracy in differentiating between infectious and tumoral lesions, it was not useful to distinguish these two entities on the basis of visual assessment or T/NT ratio measurement on static images. The study also showed the high accuracy of this noninvasive modality in acute osteomyelitis with low diagnostic value in chronic infectious processes. PMID- 29016427 TI - Comparison of Intended Lengthening of Magnetically Controlled Growing Rods: Ultrasound Versus X-Ray. AB - BACKGROUND: In the treatment of early onset scoliosis (EOS), there has been a trend to use magnetically controlled growing rods (MCGR) in order to reduce the number of surgeries. To confirm the amount of lengthening, spine radiographs were required. Recently, ultrasound (US) has been added to monitor lengthening of MCGR to avoid radiation exposure. Our aim was to determine whether US is as accurate as plain radiography (x-ray) in determining the amount of length achieved at individual MCGR lengthening episodes. METHODS: Retrospective study; inclusion criteria: EOS cases with dual MCGR with minimum 12 months follow-up. Intended lengthening IL (mm), lengthening on US (mm) and x-ray (mm) were documented from medical records for both right and left rods. Primary (no surgery before MCGR) and conversion (other types of instrumentation were replaced with MCGR) cases were reviewed separately. P-values determined with analysis of variance. RESULTS: Sixteen cases with 100 lengthening episodes met the inclusion criteria. Eleven were primary MCGR cases with 67 episodes. Mean follow-up was 19+/-5 months. Significant differences were found between IL (3.4+/-1 mm), US (2.7+/-1.9 mm), and x-ray (4.1+/-2.2 mm) (P<0.001). The difference between IL and x-ray was minimal, but statistically significant (P=0.046). US showed statistically lower values than both IL (P=0.001) and x-ray (P<0.001). The mean ratio of x-ray/IL, US/IL, and US/x-ray were 1.1, 0.75, and 0.84, respectively. Five conversion cases had 33 episodes. Mean follow-up was 21+/-2 months. Significant differences were found between IL (3.4+/-0.8 mm), US (1.3+/-0.8 mm), and x-ray (1.7+/-0.9 mm) (P<0.001) but there was no significant difference between US and x-ray (P=0.283). IL was significantly higher than both US (P< 0.001) and x-ray (P<0.001). The mean ratio of x-ray/IL, US/IL, and US/x-ray were 0.64, 0.41, and 1.1, respectively. CONCLUSIONS: US can provide confirmatory information of noninvasive lengthening of MCGR. However, US tended to underestimate the achieved length as measured by x ray in primary cases. Conversion cases demonstrate better concordance between US and x-ray but in these cases less overall length was achieved at each lengthening episode. LEVEL OF EVIDENCE: Level III. PMID- 29016428 TI - Functional Outcomes Following Operative Treatment of Tibial Tubercle Fractures. AB - BACKGROUND: Quantitative evaluation of the functional results of surgically managed tibial tubercle fractures in adolescents is unreported in the orthopaedic literature. METHODS: All patients treated surgically for unilateral tibial tubercle fractures at a single institution from 2007 to 2011 were invited to return for functional evaluation. Fractures were classified using the Ogden classification system. Clinical examination at follow-up included passive knee range of motion and thigh circumference. Side-to-side knee extension strength deficits were evaluated using a Biodex dynamometer. Patient-reported outcomes were assessed using the Pediatric-International Knee Documentation Committee Subjective Knee Form (Pedi-IKDC), Tegner-Lysholm Knee Scoring Scale, and Visual Analog Pain Scale. Chart review was performed to determine postoperative protocols including the use of physical therapy and protected weight bearing. Functional parameters were compared between the involved and uninvolved extremities using the Wilcoxon Signed Ranks Test and the Spearman correlations were performed to identify any relationships between perioperative factors, functional parameters, and subjective outcomes. RESULTS: In total, 19 of 42 patients completed clinical and functional testing and 18 of 19 completed all outcome surveys. Average age at injury was 13.9 years and average follow-up was 3.0 years. There was no statistical difference in knee range of motion between sides, however, thigh circumference was slightly smaller in the injured extremity (median difference, 1.7 cm at 15 cm above the patella and 4.0 cm at 50% of the length of the thigh). In total 5/19 subjects (26%) had a significant quadriceps extension strength deficit on the involved leg compared with the contralateral side. The median Visual Analog Pain Scale for affected limbs was 8/100 and for unaffected limbs was 6/100 (P=0.017). The Tegner-Lysholm Scale revealed 9 excellent results, 5 good, 4 fair, and 1 poor (median, 90/100). Results of the Pedi-IKDC were 11 excellent, 3 good, 2 fair, and 3 poor results (median, 91/100). Outcome scores did not correlate to diminished strength or thigh circumference. No difference in outcome based upon body mass index, postoperative weight-bearing status, Ogden classification, or postoperative physical therapy was noted using regression analysis. CONCLUSIONS: Despite promising objective results, clinical outcomes measured by subjective validated surveys are not all excellent. LEVEL OF EVIDENCE: Level III. PMID- 29016429 TI - Is Routine Spine MRI Necessary in Skeletally Immature Patients With MHE? Identifying Patients at Risk for Spinal Osteochondromas. AB - BACKGROUND: Multiple hereditary exostoses (MHE) is an autosomal dominant condition leading to development of osteochondromas throughout the body. Although long bones are most often affected, spine involvement may occur and usually requires advanced imaging for diagnosis. However, the high cost of detection, infrequent occurrence, and very low likelihood of spinal cord compression and neurological injury, create a management conundrum. The purpose of our investigation is to identify patients at greatest risk for spinal lesions and refine indications for advanced imaging. METHODS: All MHE patients in a 24-year period were retrospectively reviewed. Skeletally immature patients with advanced imaging of the spine were further evaluated. The demographic characteristics, family history, clinical presentation, past surgical history, tumor burden, and distribution of patients with spinal lesions were compared with those without. RESULTS: In total, 227 MHE patients were identified and 21 underwent advanced spinal imaging. Spinal lesions were found in 8 of the 21 screened patients (38.1%, 3.5% overall), of which 4 were intracanal and 1 was symptomatic (4.8%, 0.4% overall). Only the symptomatic patient underwent excision of the spinal lesion. Patients with spinal lesions had higher tumor burden than those without (median, 28.5 vs. 19 locations; P=0.010). There was a significant association with rib (P=0.018) and pelvic (P=0.007) lesions, which may serve as "harbinger" lesions. The presence of both a rib and a pelvic lesion used as a screening tool for spinal lesions produces a sensitivity of 100% and specificity of 69%. CONCLUSIONS: Symptomatic spinal involvement in children with MHE is rare and tends to occur in patients with higher tumor burden. We recommend limiting advanced spine imaging to children with neurological symptoms or with rib and pelvic "harbinger" lesions. Patients without these findings are unlikely to have spine involvement needing intervention. This approach offers an opportunity to avoid unnecessary testing and substantially reduce costs of diagnostic imaging. LEVEL OF EVIDENCE: Level III. PMID- 29016430 TI - An Anatomic and Radiographic Study of the Distal Tibial Epiphysis. AB - BACKGROUND: Although the undulating shape of the distal tibial epiphysis is well recognized, its anatomic features have not been well quantified in the literature. To guide the placement of surgical implants about the distal tibial physis, we investigated the topographical anatomy of the distal tibial epiphysis and explored the ability of standard radiographs to visualize the physis. METHODS: We studied 30 cadaveric distal tibial epiphyses in specimens 3 to 14 years of age. Anteroposterior (AP) and lateral radiographs were obtained of each specimen and then repeated after flexible radiopaque markers were placed on the major undulations. All radiographs were analyzed to determine the height or depth of each landmark, and measurements with and without markers for each landmark were compared using intraclass correlation coefficients (ICC). In 9 specimens, similar measurements were obtained on high-resolution 3-dimensional (3D) surface scans. RESULTS: There were 4 distinct physeal undulations usually present: an anteromedial peak (Kump's bump), a posterolateral peak, an anterior central valley, and a posterior central valley. On the 3D scans, Kump's bump averaged 5.0 mm (range, 3.0 to 6.4 mm), the posterolateral peak 2.4 mm (range, 1.2 to 5.0 mm), the anterior valley 1.3 mm (range, 0 to 3.6 mm), and the posterior valley 0.77 mm (range, 0 to 2.7 mm). Lateral radiographs with markers correlated with measurements from 3D scans better than those without markers (ICC=0.61 vs. 0.24). For AP radiographs, correlation was good to excellent regardless of marker use (ICC=0.76 vs. 0.66). CONCLUSIONS: There are 4 major undulations of the distal tibial physis. Kump's bump is the largest. A centrally placed epiphyseal screw in the medial/lateral direction or screws from anterolateral to posteromedial and anteromedial to posterolateral would tend to avoid both valleys. Particular caution should be taken when placing metaphyseal screws in the anteromedial or posterolateral distal tibia. Physeal undulations were more difficult to visualize on the lateral view. CLINICAL RELEVANCE: This study provides quantitative data on the topography of the distal tibial physis to aid hardware placement. Lateral views should be interpreted with caution, as the physeal undulations are not as visible, whereas AP views can be interpreted with more confidence. PMID- 29016431 TI - Incidence of Congenital Spinal Abnormalities Among Pediatric Patients and Their Association With Scoliosis and Systemic Anomalies. AB - BACKGROUND: Congenital abnormalities when present, according to VACTERL theory, occur nonrandomly with other congenital anomalies. This study estimates the prevalence of congenital spinal anomalies, and their concurrence with other systemic anomalies. METHODS: A retrospective cohort analysis on Health care Cost and Utilization Project's Kids Inpatient Database (KID), years 2000, 2003, 2006, 2009 was performed. ICD-9 coding identified congenital anomalies of the spine and other body systems. OUTCOME MEASURES: Overall incidence of congenital spinal abnormalities in pediatric patients, and the concurrence of spinal anomaly diagnoses with other organ system anomalies. Frequencies of congenital spine anomalies were estimated using KID hospital-and-year-adjusted weights. Poisson distribution in contingency tables tabulated concurrence of other congenital anomalies, grouped by body system. RESULTS: Of 12,039,432 patients, rates per 100,000 cases were: 9.1 hemivertebra, 4.3 Klippel-Fiel, 56.3 Chiari malformation, 52.6 tethered cord, 83.4 spina bifida, 1.2 absence of vertebra, and 6.2 diastematomyelia. Diastematomyelia had the highest concurrence of other anomalies: 70.1% of diastematomyelia patients had at least one other congenital anomaly. Next, 63.2% of hemivertebra, and 35.2% of Klippel-Fiel patients had concurrent anomalies. Of the other systems deformities cooccuring, cardiac system had the highest concurrent incidence (6.5% overall). In light of VACTERL's definition of a patient being diagnosed with at least 3 VACTERL anomalies, hemivertebra patients had the highest cooccurrence of >=3 anomalies (31.3%). With detailed analysis of hemivertebra patients, secundum ASD (14.49%), atresia of large intestine (10.2%), renal agenesis (7.43%) frequently cooccured. CONCLUSIONS: Congenital abnormalities of the spine are associated with serious systemic anomalies that may have delayed presentations. These patients continue to be at a very high, and maybe higher than previously thought, risk for comorbidities that can cause devastating perioperative complications if not detected preoperatively, and full MRI workups should be considered in all patients with spinal abnormalities. LEVEL OF EVIDENCE: Level III. PMID- 29016432 TI - Is Systemic Inflammatory Response Syndrome Relevant to Pulmonary Complications and Mortality in Multiply Injured Children? AB - BACKGROUND: Systemic inflammatory response syndrome (SIRS) is a well-recognized phenomenon in adult trauma populations. The "initial hit" of the traumatic event is often coupled with a systemic immune response characterized by changes in vital signs and laboratory indicators. A "second hit" from surgery during this time frame often results in acute lung injury, along with deterioration of the patient's clinical condition. We hypothesized that children and adolescents would experience SIRS physiology, but would not experience adult respiratory distress syndrome (ARDS) or "second hit" related death to the extent seen in the adult populations. METHODS: We queried the trauma database of our level 1 pediatric trauma center from January 2005 to December 2015 for patients with injury severity scores of >16. We used the electronic medical record to track SIRS criteria in patients days 1 to 4 posttrauma. Trends were examined in patients with an orthopaedic injury (OI) and with no orthopaedic injury. Patients were further subcategorized and analyzed by age group based on the convention for definition of pediatric SIRS. Patients in the orthopaedic cohort were further examined for pulmonary complications and death. Logistic regression was used to identify risk factors for SIRS physiology in the first 4 days of hospitalization. RESULTS: 81.4% (OI) and 69.1% no orthopaedic injury reached the threshold for SIRS within their first 4 days of hospitalization. Nine patients died in the hospital. Only 3 OI patients developed the criteria for ARDS, and only 3 patients with orthopaedic injuries died, 2 died within 24 hours of presentation and 1 within 48 hours, all had severe brain trauma. Increasing age groups showed increasing proportion of patients with SIRS. Increasing injury severity score and increasing age were independent predictors of SIRS during days 1 to 4. DISCUSSION: SIRS seems to be as common in children as the reported rates for adults, and the proportion of SIRS in children increases with increasing age and injury severity. The high mortality rate and rate of ARDS observed in adults was not observed in our cohort. The presence or absence of major orthopaedic injuries was not a significant predictor. The SIRS response in polytraumatized children is poorly understood. The clinical phenomenon of acute lung injury/ARDS is observed less often in children, but the exact mechanism by which this occurs is unknown. LEVEL OF EVIDENCE: Level III-case control. PMID- 29016433 TI - Under Correction of Sagittal Deformities Based on Age-adjusted Alignment Thresholds Leads to Worse Health-related Quality of Life Whereas Over Correction Provides No Additional Benefit. AB - STUDY DESIGN: Retrospective review of prospectively-collected database. OBJECTIVE: This study aims to compare 2-year clinical outcomes of patients who underwent surgical reconstructions based on their achievement to age-adjusted alignment ideals. SUMMARY OF BACKGROUND DATA: Recent research in sagittal plane has proposed age-adjusted alignment thresholds. However, the impact of these thresholds on postoperative health-related quality of life (HRQOL) is yet to be investigated. METHODS: Patients were included if they were more than 18-years old and underwent surgical correction of adult spinal deformity with a complete 2 year follow-up. Patients were stratified into three groups based on achievement of age-adjusted thresholds in pelvic tilt (PT), pelvic incidence minus lumbar lordosis (PI-LL), and sagittal vertical axis (SVA). First group included patients who reached the exact age-adjusted threshold +/- 10 years (MATCHED), other two groups included patients who were over corrected (OVER), and under corrected (UNDER). Clinical outcomes including actual value and offset from age-adjusted Oswestry Disability Index, Short-Form-36 (SF-36) -physical component summary, and Scoliosis Research Society-22r (SRS-22r) were compared between groups at 2 years follow-up. RESULTS: A total of 343 patients (mean, 57 yrs and 83% females) were included. Sagittal profile of the population was: PT = 23.6 degrees , SVA = 65.8 mm, and PI-LL = 15.6 degrees . At 2-year follow-up, there was significant improvement in all sagittal modifiers with 25.7%, 24.3%, and 33.1% of the patients matching their age alignment targets in terms of PT, PI-LL, and SVA, respectively. For PT and PI-LL, the three groups (MATCHED, OVER, and UNDER) had comparable values and offsets from age-adjusted patient reported outcome. However, for SVA groups, patients in UNDER had significantly worse HRQOL than the two other groups. Patients in PT, PI-LL, and SVA UNDER groups were significantly younger than the other groups, P < 0.05. CONCLUSION: At 2 years after adult spinal deformity surgical treatment, only 24.3% to 33.1% of the patients reached age-adjusted alignment thresholds. Those under corrected in SVA demonstrated worse clinical outcomes. No significant improvements were found between matched and overcorrected patients, with overcorrection being an established risk for proximal junctional kyphosis. These results further emphasize the need for patient specific operative planning. LEVEL OF EVIDENCE: 3. PMID- 29016434 TI - Hypoalbuminemia Is Associated With Septic Revisions After Primary Surgery and Postoperative Infection After Revision Surgery. AB - STUDY DESIGN: Retrospective database review. OBJECTIVE: To determine (1) the relationship between hypoalbuminemia and body mass index (BMI); (2) the association between malnutrition and revision spine surgery for septic reasons; and (3) the association between malnutrition and infection after aseptic revision spine surgery. SUMMARY OF BACKGROUND DATA: Although malnutrition has been suggested to increase the risk of infection after spine surgery, evidence supporting this hypothesis is conflicting. METHODS: Patients undergoing revision spine surgery were identified in the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) from 2006 to 2014. Hypoalbuminemia (albumin < 3.5 g/dL) was used as a surrogate marker of malnutrition. Multivariate analysis was used to assess the association of hypoalbuminemia with septic versus aseptic revision spine surgery. The association between hypoalbuminemia and deep infection postoperatively within 30 days of aseptic revision surgeries was also assessed. RESULTS: A total of 3136 patients who underwent revision spine surgery were identified; 2922 (93.2%) underwent surgery for aseptic reasons, and 214 (6.8%) for septic reasons. Hypoalbuminemia was present in all BMI groups including obese patients, though it was highest in underweight patients (22.4%). Patients who underwent surgery for septic reasons had a higher rate of hypoalbuminemia than those undergoing surgery for aseptic reasons (49.1% vs. 8.5%, P < 0.001) with nine times the odds of having hypoalbuminemia (adjusted odds ratio, OR = 9.17, P < 0.001). Of the 2922 patients undergoing revision spine surgery for aseptic reasons, hypoalbuminemia was independently associated with acute deep infection within 30 days of surgery (adjusted OR = 2.85, P = 0.019). CONCLUSION: Malnutrition is more common in revision spine surgery for septic reasons when compared with aseptic revision surgery. Acute postoperative infection following aseptic revision surgery is also more common in patients with malnutrition. Further study, in the form of prospective trials, will help to increase our understanding of the effects of malnutrition in spine surgery. LEVEL OF EVIDENCE: 3. PMID- 29016435 TI - Comparison of Outcomes for Anterior Cervical Discectomy and Fusion With and Without Anterior Plate Fixation: A Systematic Review and Meta-Analysis. AB - STUDY DESIGN: Systematic review and meta-analysis. OBJECTIVE: To compare postoperative surgical, radiographic, and patient-reported outcomes following anterior cervical discectomy and fusion (ACDF) with and without plate fixation. SUMMARY OF BACKGROUND DATA: ACDF has evolved significantly over the years, including the placement of an anterior plate construct. Although promoting bony osseo-integration at the fusion site, there are a number of plate-related complications that can arise. The non-plating approach is less invasive, however, greater rates of cage subsidence have been associated with this model. METHODS: We performed an electronic literature search for human studies that directly compared ACDF with and without anterior plate fixation. Outcomes of interest comprised of postoperative dysphagia, fusion success, and cage subsidence as well as patient reported outcomes, including the Neck Disability Index (NDI) scores and Visual Analog Scale (VAS) for both neck and arm pain. RESULTS: A total of 15 studies (12 observational and 3 randomized controlled trials) and 893 patients (57% males) were included. Overall, ACDF with plate fixation was associated with significantly higher vertebral fusion rates (odds ratio [OR] 1.98; 95% confidence interval [CI] 1.16-3.37), lower subsidence rates (odds ratio [OR] 0.31, 95% CI 0.18-0.52), and more favorable VAS-neck pain scores at last follow-up (mean difference [MD] 0.59, 95% CI -0.78 to -0.41). Conversely, ACDF procedures without plate fixation had marginally better long-term VAS-arm pain scores (mean difference [MD] 0.2, 95% CI 0.04-0.36). No difference was found with regards to dysphagia (OR 1.21, 95% CI, 0.57-2.56) and NDI (MD 0.06, 95% C.I -0.54 to 0.42). CONCLUSION: Available evidence, although limited, suggests superior surgical outcomes in ACDF procedures with anterior plate fixation (increased fusion, decreased subsidence) and slightly better VAS-neck pain scores at last follow-up. Future longitudinal, multicenter randomized controlled trials should be completed to validate any associations found in this study. LEVEL OF EVIDENCE: 3. PMID- 29016436 TI - Trends and Disparities in Cervical Spine Fusion Procedures Utilization in the New York State. AB - STUDY DESIGN: A retrospective review of the Statewide Planning and Research Cooperative System database of the New York State. OBJECTIVE: This study examined the rate of increase of cervical spine fusion procedures at low-, medium-, and high-volume hospitals, and analyzed racial and socioeconomic characteristics of the patient population treated at these three volume categories. SUMMARY OF BACKGROUND DATA: There has been a steady increase in spinal fusion procedures performed each year in the United States, especially cervical and lumbar fusion. Our study aims to analyze the rate of increase at low-, medium-, and high-volume hospitals, and socioeconomic characteristics of the patient populations at these three volume categories. METHODS: The New York State, Statewide Planning and Research Cooperative System (SPARCS) database was searched from 2005 to 2014 for the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) Procedure Codes 81.01 (Fusion, atlas-axis), 81.02 (Fusion, anterior column, other cervical, anterior technique), and 81.03 (Fusion, posterior column, other cervical, posterior technique). Patients' primary diagnosis (ICD-9-CM), age, race/ethnicity, primary payment method, severity of illness, length of stay, hospital of operation were included. All 122 hospitals were categorized into high-, medium-, and low-volume. Trends in annual number of cervical spine fusion surgeries in each of the three hospital volume groups were reported using descriptive statistics. RESULTS: Low-volumes centers were more likely to be rural and non-teaching hospitals. African American patients comprised a greater portion of patients at low-volume hospitals, 15.1% versus 11.6% compared with high-volume hospitals. Medicaid and self-pay patients were also overrepresented at low-volume centers, 6.7% and 3.9% versus 2.6% and 1.7%, respectively. Compared with Caucasian patients, African American patients had higher rates of postoperative infection (P = 0.0020) and postoperative bleeding (P = 0.0044). Compared with privately insured patients, Medicaid patients had a higher rate of postoperative bleeding (P = 0.0266) and in-hospital mortality (P = 0.0031). CONCLUSION: Our results showed significant differences in hospital characteristics, racial distribution, and primary payments methods between the low- and high-volume categories. African American and Medicaid patients had higher rates of postoperative bleeding, despite similar rates between the three volume categories. This suggests racial and socioeconomic disparities remains problematic for disadvantaged populations, some of which may be attributed to accessibility to care at high-volume centers. LEVEL OF EVIDENCE: 3. PMID- 29016437 TI - A Mouse Intervertebral Disc Degeneration Model by Surgically Induced Instability. AB - STUDY DESIGN: An experimental study to develop a mouse model of lumbar intervertebral disc degeneration (IDD). OBJECTIVE: The aim of this study was to develop a mouse lumbar IDD model using surgically induced instability and to compare the findings of this model to those in human IDD. SUMMARY OF BACKGROUND DATA: Previously, various kinds of inducers have been used to reproduce IDD in experimental animals; however, there is yet no standard mouse lumbar IDD model without direct injury to intervertebral disc. METHODS: A total number of 59 C57BL/6J male mice at 8 weeks old were used. Instability of lumbar spine was induced by surgical resection of posterior elements, including facet joints, supra- and interspinous ligaments. We then analyzed time course changes in radiographical (n = 17) and histological analyses (n = 42), and compared these findings with those in human IDD. RESULTS: Radiographical analyses showed that the disc height began to decrease in the first 2 weeks after the surgery, and the decrease continued throughout 12 weeks. Bone spurs at the vertebral rims were observed in the late stage of 8 and 12 weeks after the surgery. Histological analyses showed that the disorder of the anterior anulus fibrosus (AF) was initially obvious, followed by posterior shift and degeneration of the nucleus pulposus (NP). Proteoglycan detected in inner layer of AF and periphery of NP was decreased after 8 weeks. Immunohistochemistry displayed the increase of type I and X collagen, and matrix metalloproteinase 13 in the anterior AF. CONCLUSION: Surgical resection of posterior elements of mouse lumbar spine resulted in reproducible IDD. Because the present procedure does not employ direct injury to intervertebral disc and the radiological and histological findings are compatible with those in human IDD, it may contribute to further understanding of the native pathophysiology of IDD in future. LEVEL OF EVIDENCE: N/A. PMID- 29016438 TI - ONO-1301 Enhances in vitro Osteoblast Differentiation and in vivo Bone Formation Induced by Bone Morphogenetic Protein. AB - STUDY DESIGN: In vitro and in vivo assessment of osteogenic effect by prostacyclin agonist (ONO-1301). OBJECTIVE: The aim of this study was to investigate the effects of ONO-1301 on in vitro osteoblastic differentiation and in vivo bone formation induced by bone morphogenetic protein (BMP). SUMMARY OF BACKGROUND DATA: Among prostaglandins (PGs), PGE2 is the most abundant in bone tissue and its effects on bone formation have been well studied. PGI2 (prostacyclin) is the second most abundant PG in bone tissue and plays important roles in hemodynamics. However, the effects of PGI2 on osteoblast differentiation and bone regeneration have not been elucidated. METHODS: The effects of PGI2 agonist (ONO-1301), with and without recombinant human (rh) BMP-2, on osteoblastic differentiation and cell proliferation were investigated in vitro using alkaline phosphatase (ALP) and WST-1 assays. Murine primary osteoblasts and cell lines (ST2, MC3T3-E1, C2C12, and CH310T1/2) were used for the study. The effects of ONO-1301 on rhBMP-2 induced bone formation were investigated in a mouse model of muscle pouch transplantation (ectopic model) and in a rat model of spinal fusion (orthotopic model). RESULTS: ONO-1301 significantly increased ALP activity in the primary osteoblasts and ST2 cells. In addition, cotreatment with ONO-1301 and rhBMP-2 significantly increased ALP activity in the primary osteoblasts, as well as in ST2 and MC3T3-E1 cells. Cell proliferation was not affected by both ONO-1301 and ONO-1301 as well as rhBMP-2. In the ectopic model, ONO-1301 significantly increased the volume of ectopic bone whose formation was induced by BMP. In addition, in the orthotopic model, ONO-1301 significantly increased bone volume and fusion rate. CONCLUSION: This study has demonstrated that the PG IP agonist ONO-1301 improves in vitro BMP-2 induced osteoblast differentiation and in vivo ectopic and orthotopic bone formation. The results suggest that ONO-1301 has a potential clinical application as an enhancer of BMP induced bone formation. LEVEL OF EVIDENCE: N/A. PMID- 29016439 TI - Examining the Ability of Artificial Neural Networks Machine Learning Models to Accurately Predict Complications Following Posterior Lumbar Spine Fusion. AB - STUDY DESIGN: A cross-sectional database study. OBJECTIVE: The aim of this study was to train and validate machine learning models to identify risk factors for complications following posterior lumbar spine fusion. SUMMARY OF BACKGROUND DATA: Machine learning models such as artificial neural networks (ANNs) are valuable tools for analyzing and interpreting large and complex datasets. ANNs have yet to be used for risk factor analysis in orthopedic surgery. METHODS: The American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database was queried for patients who underwent posterior lumbar spine fusion. This query returned 22,629 patients, 70% of whom were used to train our models, and 30% were used to evaluate the models. The predictive variables used included sex, age, ethnicity, diabetes, smoking, steroid use, coagulopathy, functional status, American Society for Anesthesiology (ASA) class >=3, body mass index (BMI), pulmonary comorbidities, and cardiac comorbidities. The models were used to predict cardiac complications, wound complications, venous thromboembolism (VTE), and mortality. Using ASA class as a benchmark for prediction, area under receiver operating curves (AUC) was used to determine the accuracy of our machine learning models. RESULTS: On the basis of AUC values, ANN and LR both outperformed ASA class for predicting all four types of complications. ANN was the most accurate for predicting cardiac complications, and LR was most accurate for predicting wound complications, VTE, and mortality, though ANN and LR had comparable AUC values for predicting all types of complications. ANN had greater sensitivity than LR for detecting wound complications and mortality. CONCLUSION: Machine learning in the form of logistic regression and ANNs were more accurate than benchmark ASA scores for identifying risk factors of developing complications following posterior lumbar spine fusion, suggesting they are potentially great tools for risk factor analysis in spine surgery. LEVEL OF EVIDENCE: 3. PMID- 29016440 TI - The Feature of Clinical and Radiographic Outcomes in Elderly Patients With Cervical Spondylotic Myelopathy: A Prospective Cohort Study on 1025 Patients. AB - STUDY DESIGN: A prospective cohort study. OBJECTIVE: The purpose of this study was to compare the surgical outcomes between nonelderly and elderly patients with cervical spondylotic myelopathy (CSM) and to characterize the preoperative symptoms and postoperative residual symptoms in elderly patients. SUMMARY OF BACKGROUND DATA: Age at the time of surgery influences the surgical outcome. However, no report has elucidated residual symptoms after surgery in elderly patients with CSM. We designed a large-scale cohort study examining the surgical outcomes of CSM in elderly patients from a single surgery. METHODS: A total of 1025 consecutive patients with CSM (642 men and 383 women; mean age, 64.4 yr; range, 23-93 yr) who underwent laminoplasty were included. Patients were divided into three groups based on age: nonelderly (<65 yr), young-old (65-74 yr), and old-old (>=75 yr), and the number of patients in each group was 488, 329, and 208, respectively. The pre- and postoperative neurological statuses were evaluated using the Japanese Orthopaedic Association (JOA) scoring system for cervical myelopathy. The recovery rate (RR) of each function was compared among the three groups. Radiographic data including alignment and range of motion were also assessed. RESULTS: The mean preoperative JOA scores of motor function of the lower extremity in nonelderly, young-old, and old-old groups were 2.8, 2.2, and 1.6, respectively (P < 0.0001). Elderly patients showed significantly lower JOA scores for bladder function than nonelderly patients (2.7, 2.5, and 2.2, P < 0.0001). Cervical lordosis in the neutral position increased gradually with age. Total range of motion decreased with increasing age. After surgery, the mean RRs of motor function of the lower extremity were 57.7%, 38.6%, and 24.0%, respectively. Gait disturbance significantly increased with age (P < 0.0001). CONCLUSION: Postoperative gait disturbance persisted more than other symptoms in elderly patients than in nonelderly patients. LEVEL OF EVIDENCE: 2. PMID- 29016441 TI - Epidemiology and Outcomes of Infectious Spondylodiscitis in Hemodialysis Patients. AB - STUDY DESIGN: A retrospective study of patients who were hospitalized for infectious spondylodiscitis over a 13-year period. OBJECTIVE: To elucidate the epidemiology and prognostic factors of infectious spondylodiscitis in hemodialysis (HD) patients and to identify the impact of HD on infectious spondylodiscitis. SUMMARY OF BACKGROUND DATA: Only a few case studies of infectious spondylodiscitis in HD patients can be found in the literature. Reports of prognostic factors are limited and patients' outcomes have not been well described. METHODS: The cases of 1402 patients who were hospitalized for infectious spondylodiscitis over a 13-year period were retrospectively reviewed. Of these, 102 patients on maintenance HD were enrolled in this study. Cox proportional hazard model was used to evaluate the risk factors of mortality and recurrence. RESULTS: The 102 enrolled patients had an average age 63.3 +/- 11.2 years old and male-to-female ratio of 1:1.04. Back pain was present in 75.5% of patients and the most commonly infected site was the lumbosacral spine. Infection associated with vascular access was identified in 31.4% of patients. The prevalence of dialysis via central venous catheters was higher than prevalent HD patients. Methicillin-resistant Staphylococcus aureus was the most common pathogen, followed coagulase-negative staphylococci. The patients' in-hospital survival rate was 82.4%; their vascular access survival rate was 75.5%; their 1 year survival rate was 78.4%, and their 1-year recurrence rate was 20.2%. Congestive heart failure was associated with an increased 1-year mortality. Other variables exhibited no significant relationship with patients' in-hospital mortality, 1-year mortality or recurrence. CONCLUSION: The characteristics and outcomes of infectious spondylodiscitis in HD patients were elucidated. Most of the demographic and clinical variables, evaluated upon admission, did not predict mortality or recurrence. LEVEL OF EVIDENCE: 3. PMID- 29016442 TI - Recommencement of Denosumab for Unresectable Giant Cell Tumor of the Cervical Spine: A Case Report. AB - STUDY DESIGN: A case report. OBJECTIVE: The aim of this study was to highlight that rapid progression or recurrence of giant cell tumor of the bone (GCTB) can still occur with cessation of Denosumab in the management of unresectable GCTB even in cases with prior demonstration of excellent response to treatment and stable disease over a protracted length of surveillance despite dose reduction. The close proximity of unresectable GCTB to vital structures makes it prudent that we monitor these patients closely given its locally aggressive nature. SUMMARY OF BACKGROUND DATA: Cervical spine GCTB is extremely rare. Unresectable GCTB has historically been a challenge to treat due to the lack of prospective, randomized clinical trials to guide treatment. Radiotherapy has fallen out of favor due to the risk of malignant transformation, especially as most GCTB patients are young.In recent years, improved understanding of the receptor activator of nuclear factor-kappaB ligand (RANKL) in the pathophysiology of GCTB has led to the use of Denosumab in patients with recurrent/unresectable/metastatic GCTB and in patients whom surgical resection carries a high morbidity. To date, the optimal dosage and duration of therapy in the treatment of GCTB is unknown. METHODS: We report a case of cervical spine GCTB in a 53-year-old male with positive surgical margins managed with Denosumab. RESULTS: This is the first reported case of a cervical spine GCTB managed with Denosumab showing excellent response to treatment, recurrence of disease post cessation of Denosumab despite earlier satisfactory disease control and stabilization achieved even with dose reduction, and again an excellent response with recommencement of the drug. CONCLUSION: Denosumab is an excellent option in patients with unresectable GCTB or when surgery will result in excessive morbidity. However, further studies are required to determine optimal dosing, treatment duration, side effect profile, and whether Denosumab is truly able to achieve partial or complete disease remission in the long run. LEVEL OF EVIDENCE: 4. PMID- 29016444 TI - The more lordosis of cage, the better? PMID- 29016443 TI - Development and Validation of Taiwanese Version of the Neck Disability Index. AB - STUDY DESIGN: Cross-cultural adaptation and cross-sectional psychometric testing in a convenience sample of patients with neck pain. OBJECTIVE: To translate and cross-culturally adapt the Neck Disability Index (NDI) into a Taiwanese version and to assess the psychometric properties. SUMMARY OF BACKGROUND DATA: The Taiwanese NDI has not been developed or validated. METHODS: The NDI was first translated and culturally adapted to the Taiwanese version. The test-retest reliability within 1 week was examined (n = 32). The factor structure was assessed by confirmatory factor analysis (n = 137). The construct validity was assessed by examining the relationship between the NDI and other well-known measures (n = 137). RESULTS: The Taiwanese version was successfully translated and cross-culturally adapted. The internal consistency was excellent, with Cronbach alpha = 0.89. High test-retest reliability was demonstrated with intraclass correlation coefficients of 0.87. The minimal detectable change was 8.74. The two-factor model (pain and function factors) was better than the one factor model, with higher factor loadings and better goodness-of-fit statistics. The convergent validity was supported by moderate correlation of the pain factor with the Visual Analogue Scale (|rho| = 0.45), and high correlation of the function factor with the physical component summary of the Short-From 36 (SF-36) (|rho| = 0.60). CONCLUSION: The Taiwanese NDI is a reliable and valid disease specific measure for assessment of pain and functional status in patients with neck pain. LEVEL OF EVIDENCE: 3. PMID- 29016445 TI - Point of View: Avoiding Opioids in Patients With Work-related Lumbar Disc Herniation. PMID- 29016446 TI - Incidence and Risk Factors of Acute Pancreatitis After Scoliosis Surgery: A Prospective Study. AB - STUDY DESIGN: A prospective study. OBJECTIVE: To investigate the incidence and risk factors of acute pancreatitis after scoliosis surgery. SUMMARY OF BACKGROUND DATA: Pancreatitis has been recognized as a possible complication of extra abdominal surgeries. However, there were few reports on the incidence and risk factors of acute pancreatitis after scoliosis surgery. METHODS: A prospective clinical study was performed at our center from September 2014 to October 2015. One hundred seventy-six patients undergoing posterior spinal correction surgery were enrolled. The diagnosis of acute pancreatitis was based on their clinical manifestations combined with laboratory examination. Demographic, intraoperative, and radiological parameters were evaluated to identify the risk factors of acute pancreatitis after scoliosis surgery. RESULTS: Thirteen patients (7.4%) were diagnosed with acute pancreatitis. Compared with patients without pancreatitis, pancreatitis patients had lower body mass index (BMI) (15.5 vs. 19.5, P = 0.001), larger preoperative Cobb angle of major curve (87.5 degrees vs. 59.2 degrees , P < 0.001), lower correction rate (57.4% vs. 69.0%, P = 0.045), lower intraoperative mean arterial pressure (57.9 mmHg vs. 66.1 mmHg, P < 0.001), and longer fusion levels (13.3 vs. 10.1, P < 0.001). No significant differences were noted with respect to operation time, intraoperative blood loss, or the amount of sagittal profile correction. Furthermore, multivariate logistic analysis revealed that BMI (odds ratio [OR] = 1.542, P = 0.009), lowest intraoperative mean arterial pressure (OR = 1.126, P = 0.039), and segments of fusion (OR = 0.551, P = 0.025) were independent risk factors for postoperative acute pancreatitis. All cases were treated with bowel rest, intravenous fluids, and fasting and completely recovered with 3.3 (2-5) days. CONCLUSION: The incidence of postoperative acute pancreatitis after scoliosis surgery was 7.4%. The low BMI, lowest intraoperative mean arterial pressure, and long segments of fusion were independent risk factors for acute pancreatitis after scoliosis surgery. LEVEL OF EVIDENCE: 3. PMID- 29016447 TI - Systemic Inflammation in Lewy Body Diseases: A Systematic Review. AB - Few studies have investigated the role of inflammation in Lewy body dementia (LBD) and variable results have been found. We systematically reviewed the literature for evidence of systemic inflammatory changes in dementia with Lewy bodies and Parkinson disease dementia. Owing to the low number of studies we also included Parkinson disease. Key terms were used to search the relevant databases. Titles and abstracts were screened and potentially relevant articles were reviewed in full. References of included studies and relevant reviews were searched. The database search returned 2166 results, 46 of which were finally included in the systematic review. These studies showed a general increase in inflammatory markers in the peripheral blood, most notably interleukin-1beta (IL 1beta), tumor necrosis factor-alpha, IL-6, and IL-10. Studies examining cerebrospinal fluid found IL-1beta, IL-6, and transforming growth factor-beta1 to be particularly increased, and interferon-gamma decreased. C-reactive protein levels were increased, particularly in Parkinson disease dementia. These results provide evidence that LBD is associated with an increased inflammatory response. Furthermore, there may be a stronger general inflammatory response in LBD than in Parkinson disease, while complex changes occur in the individual cytokines. PMID- 29016449 TI - Self-Reported Decline in Everyday Function, Cognitive Symptoms, and Cognitive Function in People With HIV. AB - BACKGROUND: We determined factors associated with self-reported decline in activities of daily living (ADLs) and symptoms of cognitive impairment in HIV positive adults in 5 European clinics. METHODS: HIV+ adults underwent computerized and pen-and-paper neuropsychological tests and questionnaires of cognitive symptoms and ADLs. We considered cognitive function in 5 domains, psychosocial factors, and clinical parameters as potentially associated with symptoms. Separate regression analyses were used to determine factors associated with a decline in ADL (defined as self-reported decline affecting >=2 ADLs and attributed to cognitive difficulties) and self-reported frequency of symptoms of cognitive impairment. We also estimated the diagnostic accuracy of both questionnaires as tests for cognitive impairment. RESULTS: Four hundred forty eight patients completed the assessments [mean age 45.8 years, 84% male, 87% white, median CD4 count 550 cells/mm, median time since HIV diagnosis 9.9 years, 81% virologically suppressed (HIV-1 plasma RNA <50 copies/mL)]. Ninety-six (21.4%) reported decline in ADLs and attributed this to cognitive difficulties. Self-reported decline in ADLs and increased symptoms of cognitive impairment were both associated with worse performance on some cognitive tests. There were also strong associations with financial difficulties, depressive and anxiety symptoms, unemployment, and longer time since HIV diagnosis. Both questionnaires performed poorly as diagnostic tests for cognitive impairment. CONCLUSIONS: Patients' own assessments of everyday function and symptoms were associated with objectively measured cognitive function. However, there were strong associations with other psychosocial issues including mood and anxiety disorders and socioeconomic hardship. This should be considered when assessing HIV-associated cognitive impairment in clinical care or research studies. PMID- 29016448 TI - Brief Report: HIV/HBV Coinfection is a Significant Risk Factor for Liver Fibrosis in Tanzanian HIV-Infected Adults. AB - BACKGROUND: In sub-Saharan Africa, the burden of liver disease associated with chronic hepatitis B virus (HBV) and HIV is unknown. We characterized liver disease using aspartate aminotransferase-to-platelet ratio index (APRI) and FIB-4 in patients with HIV, HBV, and HIV/HBV coinfection in Tanzania. METHODS: Using a cross-sectional design, we compared the prevalence of liver fibrosis in treatment naive HIV monoinfected, HBV monoinfected, and HIV/HBV-coinfected adults enrolled at Management and Development for Health (MDH)-supported HIV treatment clinics in Dar es Salaam, Tanzania. Risk factors associated with significant fibrosis (APRI >0.5 and FIB-4 >1.45) were examined. RESULTS: Two hundred sixty-seven HIV infected, 165 HBV-infected, and 63 HIV/HBV-coinfected patients were analyzed [44% men, median age 37 (interquartile range 14), body mass index 23 (7)]. APRI and FIB-4 were strongly correlated (r = 0.78, P < 0.001, R = 0.61). Overall median APRI scores were low {HIV/HBV [0.36 (interquartile range 0.4)], HIV [0.23 (0.17)], HBV [0.29 (0.15)] (P < 0.01)}. In multivariate analyses, HIV/HBV coinfection was associated with APRI >0.5 [HIV/HBV vs. HIV: odds ratio (OR) 3.78 (95% confidence interval: 1.91 to 7.50)], [HIV/HBV vs. HBV: OR 2.61 (1.26 to 5.44)]. HIV RNA per 1 log10 copies/mL increase [OR 1.53 (95% confidence interval: 1.04 to 2.26)] and HBV DNA per 1 log10 copies/mL increase [OR 1.36 (1.15, 1.62)] were independently associated with APRI >0.5 in HIV-infected and HBV-infected patients, respectively. CONCLUSIONS: HIV/HBV coinfection is an important risk factor for significant fibrosis. Higher levels of circulating HIV and HBV virus may play a direct role in liver fibrogenesis. Prompt diagnosis and aggressive monitoring of liver disease in HIV/HBV coinfection is warranted. PMID- 29016450 TI - A NEW DESIGN INTRAOCULAR FOREIGN BODY FORCEPS. PMID- 29016452 TI - INTRAOCULAR LENS POSITION IN COMBINED PHACOEMULSIFICATION AND VITREORETINAL SURGERY. AB - PURPOSE: To assess the decentration and angle of tilt of the intraocular lens (IOL) according to the intravitreal tamponade types used in combined phacoemulsification and vitreoretinal surgery. METHODS: This prospective and randomized clinical study involved 73 eyes of 69 patients who underwent combined vitreoretinal surgery. Eyes with intravitreal tamponades formed the study group and eyes without intravitreal tamponades formed the control group. The study group was further divided into silicone oil and gas tamponade subgroups. Cross sectional IOL images were captured using a Pentacam HR (Oculus, Germany) and tilt and decentration were calculated with Adobe Photoshop software (Adobe, San Jose, CA). RESULTS: The mean angle of tilt and decentration at the vertical meridian were significantly higher in both tamponade groups than in the control group (P < 0.05 for all). No significant difference was observed among the groups regarding IOL position parameters at the horizontal meridian (P > 0.05). When comparing the silicone oil and gas tamponade subgroups, no significant differences were noted on the position of IOL at both meridians (P > 0.05 for all). CONCLUSION: Intravitreal tamponades have an important effect on the position of IOL in combined vitreoretinal surgery. Silicone oil and gas tamponades may induce postoperative tilt and decentration of one-piece acrylic IOLs. PMID- 29016453 TI - IN VITRO FLOW ANALYSIS OF NOVEL DOUBLE-CUTTING, OPEN-PORT, ULTRAHIGH-SPEED VITRECTOMY SYSTEMS. AB - PURPOSE: To analyze the performance and flow characteristics of novel double cutting, open-port, 23-, 25-, and 27-gauge ultrahigh-speed vitrectomy systems. METHODS: In vitro fluidic measurements were performed to assess the volumetric aspiration profiles of several vitrectomy systems in basic salt solution and egg white. RESULTS: Double-cutting open-port vitrectomy probes delivered stable aspiration flow rates that were less prone to flow variation affected by the cutting speed. Increase in cutting frequency to the maximum level resulted in flow reduction of less than 10% (0.0%-9.5%). Commercially available 23-, 25-, and 27-G double-cutting probes exhibited higher egg-white and basic salt solution flow rates at all evaluated cut rates, with aspirational efficiencies being 1.1 to 2.9 times the flow rates of standard single-blade vitrectomy probes of the same caliber at the maximum preset vacuum. The highest relative differences were observed at faster cut rates. CONCLUSION: The newly introduced double-cutting open-port vitrectomy probes delivered stable aspiration flow rates that were less prone to flow variation affected by the cutting speed. The fluidic principle of constant flow even at the highest cut rates and low vacuum levels might impact surgical strategies, especially when performing manipulations close to the retina. PMID- 29016454 TI - INTRAOCULAR DEXAMETHASONE IMPLANT POSITION IN SITU AND OCULAR HYPERTENSION. AB - PURPOSE: To determine the association between the dexamethasone implant position in the vitreous cavity and ocular hypertension (OHT). METHODS: Retrospective review of patients with at least one intravitreal dexamethasone implant injection between 2012 and 2016. Patients who had a minimum follow-up for 6 months and documented evidence of the implant position were included in the study. Steroid responders, glaucoma patients, vitrectomized eyes, and eyes with liquefied vitreous were excluded. Relevant data were collected from patient charts. Three positions (P1, P2, and P3) were identified: P1 (in contact with the pars plana/ciliary body region), P2 (anterior to vortex veins), and P3 (posterior to vortex veins). Ocular hypertension was defined as absolute intraocular pressure > 25 mmHg and/or intraocular pressure rise > 10 mmHg. The relationship between implant position and intraocular pressure rise after factoring in other characteristics was the outcome measure. Appropriate statistical analysis was performed. RESULTS: A total of 377 patients (432 eyes; 257 males; 677 injections) were eligible for analysis. The median age was 57.24 (+/-6.32) years. Eighty eight eyes had OHT. Of these, 54 eyes had the implant in P1. P1 was associated with high intraocular pressure response (>15 mmHg; P = 0.004) and early (<15 days) onset OHT (r = 0.84, P < 0.001). CONCLUSION: Anterior position of dexamethasone implant in situ increases the risk of OHT. PMID- 29016451 TI - CONCURRENT IDIOPATHIC MACULAR TELANGIECTASIA TYPE 2 AND CENTRAL SEROUS CHORIORETINOPATHY. AB - PURPOSE: To describe cases presenting with features of idiopathic macular telangiectasia (MacTel) Type 2 and central serous chorioretinopathy (CSC). METHODS: Databases from four tertiary retina centers were searched for cases copresenting CSC and MacTel Type 2. RESULTS: Five cases were identified (4 men, 1 woman; mean age: 67.2 years). Four patients were referred for chronic or nonresolving CSC, and the diagnosis of MacTel Type 2 was made based on multimodal imaging findings. One patient had advanced MacTel Type 2, and developed acute CSC. Regarding the MacTel Type 2 findings, all subjects presented perifoveal telangiectasia on fluorescein angiography, and four subjects showed intraretinal cavitations typical of MacTel Type 2 on optical coherence tomography, in one or both eyes. Regarding the CSC findings, fluorescein angiography identified focal or extended retinal pigment epithelium alteration in all eyes, and an active leakage in two eyes. Indocyanine green angiography showed choroidal vascular hyperpermeability in four subjects. On optical coherence tomography, pigment epithelial detachments were detected in five eyes (four subjects), and foveal detachments were present in five eyes (three subjects), which spontaneously resolved (two eyes), responded to photodynamic therapy (two eyes), or persisted (one eye). Mean choroidal thickness was 402 +/- 99 MUm. CONCLUSION: The codiagnosis of CSC and MacTel Type 2 should be considered in atypical presentations associating features from both disorders. PMID- 29016455 TI - Reply. PMID- 29016456 TI - NEW ULTRA-WIDE-FIELD ANGIOGRAPHIC GRADING SCHEME FOR RADIATION RETINOPATHY AFTER IODINE-125 BRACHYTHERAPY FOR UVEAL MELANOMA. AB - PURPOSE: Radiation retinopathy remains incompletely characterized and may cause severe vision loss. Ultra-wide-field fluorescein angiography provides a pan fundus view of vascular alterations caused by radiation treatment and may predict visual and ocular outcomes. We have developed a grading scheme to describe pan fundus severity and to predict the progression of radiation retinopathy in patients treated for uveal melanoma with iodine-125 brachytherapy. METHODS: A retrospective review of patients treated with standard iodine-125 brachytherapy for uveal melanoma at the Ophthalmic Oncology Center at the University of California, Los Angeles, who had undergone both baseline and postbrachytherapy ultra-wide-field fluorescein angiography. A grading scheme was devised based on observations of vascular leakage, retinal perfusion status, and retinal proliferation. The correlation of grade severity with patient characteristics, tumor features, visual acuity, optical coherence tomography findings, and neovascular glaucoma was measured with chi-square and one-way analysis of variance analyses. RESULTS: Sixty-seven patients were identified for review. Consistent wide-field angiographic patterns after brachytherapy were observed and graded as follows: Grade 0: normal; Grade 1: late foveal leakage; Grade 2: late peripheral leakage; Grade 3: presence of nonperfusion; and Grade 4: retinal neovascularization. Six eyes (8.9%) were Grade 0; 16 (23.8%) were Grade 1; 25 (37.3%) were Grade 2; 16 (23.4%) were Grade 3; and 4 (6.0%) were Grade 4. Higher grade radiation severity correlated significantly with duration of follow-up (P < 0.02); younger age (P = 0.035); worse visual acuity (P = 0.001); cystoid macular edema or atrophy on optical coherence tomography (P < 0.0001); and neovascular glaucoma (P = 0.003). CONCLUSION: Wide-field fluorescein angiography revealed distinct fundus-wide patterns of vascular damage, which were progressive in nature in eyes treated with iodine-125 brachytherapy for uveal melanoma and correlated with signs of progressive vascular injury. This grading scheme may have prognostic value to predict the progression of radiation retinopathy and to prognosticate visual outcomes in patients undergoing brachytherapy. PMID- 29016457 TI - OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY IN GEOGRAPHIC ATROPHY. AB - PURPOSE: To analyze choriocapillaris (CC) vessel density (VD) around geographic atrophy (GA) secondary to non-neovascular dry age-related macular degeneration using optical coherence tomography angiography. METHODS: We compared CC VD surrounding GA margin (500 MUm radius) with control CC (outside GA margin) in a consecutive series of GA patients presenting between August 2016 and February 2017 at the Medical Retina and Imaging Unit of University Vita-Salute, IRCCS Ospedale San Raffaele in Milan. Images were obtained through thresholding and binarization. We also compared the CC VD in a sample area of 500 MUm * 500 MUm surrounding GA margin rated as hyperautofluorescent on fundus autofluorescence to a similar area rated as isoautofluorescent. RESULTS: Fifty eyes of 29 patients (19 women and 10 men; mean age 77 +/- 6 years) with mean GA area of 9.43 +/- 5.08 mm and mean subfoveal choroidal thickness of 164 +/- 73 MUm were included. Choriocapillaris VD surrounding GA margin as detected by optical coherence tomography angiography revealed a significant impairment compared with control CC outside GA margin (0.317 +/- 0.083 vs. 0.461 +/- 0.054, P < 0.001), which was even greater in patients with foveal involvement (P = 0.013). Furthermore, mean VD in hyperautofluorescent areas was significantly lower compared with isoautofluorescent areas (0.242 +/- 0.112 vs. 0.327 +/- 0.130, P = 0.001). A positive correlation was disclosed between VD surrounding GA margin and subfoveal choroidal thickness (r = 0.332, P = 0.019). CONCLUSION: Optical coherence tomography angiography discloses CC impairment surrounding GA margin. Such CC impairment at GA margin seems to precede retinal pigment epithelium alterations at fundus autofluorescence. Optical coherence tomography angiography could be a new valuable tool for detecting CC alterations and to evaluate potential therapeutic responses in clinical studies. PMID- 29016459 TI - CHOROIDAL STRUCTURAL CHANGES AND VASCULARITY INDEX IN STARGARDT DISEASE ON SWEPT SOURCE OPTICAL COHERENCE TOMOGRAPHY. AB - PURPOSE: To evaluate structural changes in the choroid of patients with Stargardt disease using swept source optical coherence tomography scans. METHODS: A retrospective comparison cohort study was conducted on 39 patients with Stargardt disease, and on 25 age and gender matched-healthy controls. Subfoveal choroidal thickness (SFCT) was computed from the swept source optical coherence tomography machine, and the scans were binarized into luminal area and stromal areas, which were then used to derive choroidal vascularity index (CVI). Choroidal vascularity index and SFCT were analyzed independently using linear mixed effects model. RESULTS: There was no significant difference in SFCT between the 2 groups (347.20 +/- 13.61 MUm in Stargardt disease vs. 333.09 +/- 18.96 MUm in the control group, P = 0.548). There was a significant decrease in the CVI among eyes with Stargardt disease as compared with the normal eyes (62.51 +/- 0.25% vs. 65.45 +/- 0.29%, P < 0.001). There was a negative association between visual acuity and CVI (correlation coefficient = -0.75, P < 0.001) and a positive association between visual acuity and SFCT (correlation coefficient = 0.21, P = 0.035). CONCLUSION: Choroidal vascularity index appears to be a more robust tool compared with SFCT for choroidal changes in Stargardt disease. Choroidal vascularity index can possibly be used as a surrogate marker for disease monitoring. A decrease in CVI was associated with a decrease in visual function in eyes with Stargardt disease. PMID- 29016458 TI - QUANTITATIVE ANALYSIS OF HYPERAUTOFLUORESCENT RINGS TO CHARACTERIZE THE NATURAL HISTORY AND PROGRESSION IN RPGR-ASSOCIATED RETINOPATHY. AB - PURPOSE: Quantitative analysis of hyperautofluorescent rings and progression in subjects with retinitis pigmentosa associated with retinitis pigmentosa GTPase regulator (RPGR) gene mutations. METHODS: Prospective observational study of 46 subjects. Ring area, horizontal and vertical diameter measurements taken from outer and inner ring borders. Intraobserver repeatability, baseline measurements, progression rates, interocular symmetry, and association with age and genotype were investigated. RESULTS: Baseline ring area was 11.8 +/- 13.4 mm and 11.4 +/- 13.2 mm for right and left eyes, respectively, with very strong interocular correlation (r = 0.9398; P < 0.0001). Ring area constriction was 1.5 +/- 2.0 mm/year and 1.3 +/- 1.9 mm/year for right and left eyes, respectively, with very strong interocular correlation (r = 0.878, P < 0.0001). Baseline ring area and constriction rate correlated negatively with age (r = -0.767; P < 0.0001 and r = 0.644, P < 0.0001, respectively). Constriction rate correlated strongly with baseline area (r = 0.850, P < 0.0001). Age, but not genotype, exerted a significant effect on constriction rates (P < 0.0001), with greatest rates of progression seen in younger subjects. An exponential decline overall was found. CONCLUSION: This study provides disease-specific baseline values and progression rates together with a repeatability assessment of fundus autofluorescence metrics. Our findings can guide future treatment trials and contribute to the clinical care of patients with RPGR-associated retinitis pigmentosa. PMID- 29016460 TI - TREFOIL FACTOR FAMILY 1 EXPRESSION CORRELATES WITH CLINICAL OUTCOME IN PATIENTS WITH RETINOBLASTOMA. AB - PURPOSE: Correlation of trefoil factor family 1 (TFF1) expression in retinoblastoma tumors with different clinical parameters to evaluate a potential involvement of TFF1 in tumor development and progression. METHODS: A representative cohort of 59 enucleated eyes from individual patients with retinoblastoma was analyzed for its TFF1 expression profile by immuno staining and real-time PCR. Trefoil factor family 1 expression was correlated with demographics, laterality, tumor-node-metastasis stage, International Classification of Retinoblastoma, tumor differentiation level, and treatment. RESULTS: According to our analysis, increased TFF1 expression significantly correlates with unilateral tumors diagnosed in older children and with poorly differentiated tumors and higher tumor-node-metastasis stages. CONCLUSION: This retrospective study reveals that unilateral tumors at a higher clinical tumor node-metastasis stage and poorly differentiated tumor cells express significantly higher levels of TFF1 than those of differentiated tumors at lower tumor-node metastasis stages. Besides, TFF1 expression correlates with the age of the patients at the time of tumor diagnosis. Our data indicate that TFF1 expression levels are potentially useful additional markers in the classification of tumor staging and prognosis of patients with retinoblastoma. PMID- 29016462 TI - The Medical Futility Experience of Nurses in Caring for Critically Ill Patients. AB - BACKGROUND: Medical futility is a key bioethical concern. In Taiwan, policymakers tend to provide care standards and evaluation guidelines for critically ill and terminal patients whose treatment is medically futile. However, the current status of medical futility for critically ill patients is inadequate, and no consensus currently exists on the definition of medical futility. PURPOSE: The aim of this study was to understand the medical futility experiences of intensive care nurses. METHODS: This qualitative research adopted a phenomenological perspective and was conducted in a medical center and a regional hospital in Central Taiwan. Eight nurses with at least 1 year of nursing tenure who were serving in the intensive care unit were recruited. Purposive and snowball sampling methods were used to conduct one-on-one in-depth interviews. Each of the tape-recorded interviews was transcribed before data analysis. RESULTS: The research results found four themes, including (a) definitions of medical futility and types of patients, (b) considerations of medical futility, (c) the occurrence of medical futility, and (d) nurses' responses to medical futility. The participants indicated that medical futility refers to the point at which the continued provision of treatment does not evidently ease the disease condition of a patient or improve his or her quality of life or when life-sustaining treatment is provided to patients to facilitate the process of death. CONCLUSIONS: This study revealed that the major challenge in clinical cases of medical futility is for physicians, nurses, and patients to communicate effectively together during times of rapid and unanticipated change in patient condition. Thus, events of medical futility may be preventable. Past cases of medical futility involving critically ill patients may serve as references for guiding clinical care, education, and related policy formulation. PMID- 29016461 TI - Social learning pathways in the relation between parental chronic pain and daily pain severity and functional impairment in adolescents with functional abdominal pain. AB - Having a parent with chronic pain (CP) may confer greater risk of persistence of CP from childhood into young adulthood. Social learning, such as parental modeling and reinforcement, represents one plausible mechanism for the transmission of risk of CP from parents to offspring. Based on a 7-day pain diary in 154 pediatric patients with functional abdominal CP, we tested a model in which parental CP predicted adolescents' daily average CP severity and functional impairment (distal outcomes) via parental modeling of pain behaviors and parental reinforcement of adolescent's pain behaviors (mediators) and adolescents' cognitive appraisals of pain threat (proximal outcome representing adolescents' encoding of parents' behaviors). Results indicated significant indirect pathways from parental CP status to adolescent average daily pain severity (b = 0.18, SE = 0.08, 95% confidence interval: 0.04-0.31, P = 0.03) and functional impairment (b = 0.08, SE = 0.04, 95% confidence interval: 0.02-0.15, P = 0.03) over the 7-day diary period via adolescents' observations of parent pain behaviors and adolescent pain threat appraisal. The indirect pathway through parental reinforcing responses to adolescents' pain did not reach significance for either adolescent pain severity or functional impairment. Identifying mechanisms of increased risk of pain and functional impairment in children of parents with CP ultimately could lead to targeted interventions aimed at improving functioning and quality of life in families with CP. Parental modeling of pain behaviors represents a potentially promising target for family-based interventions to ameliorate pediatric CP. PMID- 29016463 TI - A Preliminary Study of the Effects of a Multitheory-Driven Intervention in Adults With Prediabetes Mellitus. AB - BACKGROUND: Prediabetes mellitus (pre-DM) is an important predictive indicator of Type 2 diabetes. A person with pre-DM is eight times more likely to develop diabetes than a person without pre-DM. Prior research suggests that proactive interventions may delay the progression of this disease and reduce the rate of disease development. PURPOSE: The purposes of this preliminary study were to develop a multitheory-driven lifestyle intervention protocol for adults with pre DM and to evaluate its feasibility and impacts on knowledge regarding pre-DM, dietary behaviors, and physical activity (primary outcomes) as well as to describe the disease progression indicators (secondary outcomes). METHODS: A single-group, longitudinal study design was used. Thirty-nine participants were included in the analysis. A generalized estimating equation model was used to determine the trends in changes in the outcomes. All of the participants underwent testing at baseline (T0) and at 3 (T1), 6 (T2), and 12 (T3) months after the 4-week lifestyle intervention. RESULTS: There were significantly increasing trends for each study parameter (Pre-DM Knowledge Assessment Form-12, p < .01; Dietary Behavior Scale, p < .01) and significantly positive changes in body weight (p < .01), body mass index (p < .01), fasting glucose level (p < .01), and glycated hemoglobin level (p < .01) over the 12-month study period. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: This study supports the feasibility of the developed multitheory-driven lifestyle intervention protocol and suggests that its application may improve the effectiveness of diabetes prevention programs in clinical settings. Further randomized controlled trials are needed. PMID- 29016464 TI - Perceptions of Diabetes Self-Care Management Among Older Singaporeans With Type 2 Diabetes: A Qualitative Study. AB - BACKGROUND: Given the global shift in aging populations and the associated increasing prevalence of diabetes, it is critical to explore new approaches in diabetic self-care management. In Singapore, what has been overlooked to date is an in-depth, contextually based examination of the needs, expectations, and barriers faced in self-care management by older adults with Type 2 diabetes. PURPOSE: This study aimed to explore the experiences of older Singaporeans with Type 2 diabetes in diabetes self-care management to understand their perceived needs, expectations, and barriers associated with their diabetes self-care management. METHODS: A descriptive qualitative approach using focus group discussions was adopted. Purposive sampling was used to recruit older adults with Type 2 diabetes from Singapore's three main ethnic groups, namely, Chinese, Malay, and Indian, through the diabetes centers of two hospitals. Four focus groups, including two groups of Chinese, one group of Malays, and one group of Indians, were conducted. Thematic analysis was used to analyze the data set for emerging themes that relate to the experiences of participants with diabetes self care management. RESULTS: The four major themes related to the experiences of participants with diabetes self-care management that emerged were as follows: (a) "Diabetes is genetic, destined, and not serious; complication, let it come"; (b) "Diabetes self-care is difficult"; (c) "I don't know diabetes"; and (d) "Doctor and nurses are important facilitators of self-care management." CONCLUSIONS/IMPLICATIONS FOR PRACTICE: Findings have important implications in Singapore as well as in other Asian countries where populations are also aging and diabetes prevalence is increasing. The findings provide new culturally focused insights for clinical patient education within the Southeast Asian context to improve diabetes self-care management of older adults. PMID- 29016465 TI - Information Reception and Expectations Among Hospitalized Elderly Patients in Taiwan: A Pilot Study. AB - BACKGROUND: Communicating with patients, especially geriatric patients, is a challenge for medical professionals. Medical message receiving and expectations among hospitalized elderly patients have not been studied. PURPOSE: The aim of this study was to explore medical message receiving and expectations concerning medical information among hospitalized elderly patients in Taiwan. METHODS: A descriptive study design was used. Convenience sampling was applied, and the research was conducted in a geriatric ward in a medical center in southern Taiwan. Patients were recruited who were 65 years or older and capable of verbal communication. Data were collected using a self-developed semistructured questionnaire. For each participant, data were collected in one regular ward round. The messages of the physician were recorded. During the first and fourth hours after the ward round, the researcher collected the medical messages that were conveyed by the physician in the ward round and that could be repeated by the patients. Open-ended questions were used to collect data about patient expectations of medical messages during the first hour after the ward round. Quantitative data were analyzed using descriptive statistics, and qualitative data were analyzed using content analysis. RESULTS: Thirty patients participated in this study. All of the participants remembered the visit of the physician. Seventeen participants (56.6%), however, could not repeat the messages, and the total message repetition rate was 17.8% at the first hour after the ward round. By the fourth hour, the message repetition rate fell to 8.9%. Furthermore, three participants (10%) reported messages incorrectly. Participants reported the importance and necessity of physicians conveying medical messages. "Desire to know the reasons for discomfort" and "discharge date" were the messages most expected by the participants. CONCLUSIONS: This study suggests that most hospitalized elderly patients cannot repeat medical messages that are conveyed by their physicians. Written materials and the involvement of principal caregivers in the medical informing process may be necessary. Besides, before providing medical information, medical professionals should be cognizant of the key concerns of their patients. PMID- 29016466 TI - Comparing the Effects of Simulation-Based and Traditional Teaching Methods on the Critical Thinking Abilities and Self-Confidence of Nursing Students. AB - BACKGROUND: Critical thinking and self-confidence are imperative to success in clinical practice. Educators should use teaching strategies that will help students enhance their critical thinking and self-confidence in complex content such as electrocardiogram interpretation. Therefore, teaching electrocardiogram interpretation to students is important for nurse educators. PURPOSE: This study compares the effect of simulation-based and traditional teaching methods on the critical thinking and self-confidence of students during electrocardiogram interpretation sessions. METHODS: Thirty undergraduate nursing students volunteered to participate in this study. The participants were divided into intervention and control groups, which were taught respectively using the simulation-based and traditional teaching programs. All of the participants were asked to complete the study instrumentpretest and posttest to measure their critical thinking and self-confidence. RESULTS: Improvement was observed in the control and experimental groups with respect to critical thinking and self confidence, as evidenced by the results of the paired samples t test and the Wilcoxon signed-rank test (p < .05). However, the independent t test and Mann Whitney U test indicate that the difference between the two groups was not significant (p > .05). CONCLUSIONS/IMPLICATIONS FOR PRACTICE: This study evaluated an innovative simulation-based teaching method for nurses. No significant differences in outcomes were identified between the simulator-based and traditional teaching methods, indicating that well-implemented educational programs that use either teaching method effectively promote critical thinking and self-confidence in nursing students. Nurse educators are encouraged to design educational plans with clear objectives to improve the critical thinking and self confidence of their students. Future research should compare the effects of several teaching sessions using each method in a larger sample. PMID- 29016467 TI - The Development and Psychometric Testing on Psychiatric Nurses of a Nurse Case Management Competence Scale in Taiwan. AB - BACKGROUND: Case management is a complex process involving multiple activities. It is vital that nurses are competent in all related tasks for case management. A competence scale is a valuable tool for assessing task-related competency. PURPOSE: The aims of this study were to examine the reliability and validity of an assessment scale for nurse case management competence and to use this scale to assess the current competency of nurses. METHODS: A nurse case management competence scale was developed in three stages: (a) selection of assessment items according to standards of practice for case management and literature review, (b) determination of content validity using the Delphi technique with a panel of experts, and (c) psychometric testing of the developed competence scale using a cross-sectional design. Convenience sampling was used to recruit psychiatric nurses at seven psychiatric centers in Taiwan to complete the scale anonymously. An exploratory factor analysis was performed to analyze construct validity. Discriminant validity, internal consistency, and 2-week test-retest reliability were also examined. RESULTS: Two hundred eighty-five psychiatric nurses completed an assessment scale comprising 18 items (originally 25 items). The content validity index reached 0.96 after the Delphi technique was applied twice in the expert panel. Seventy-eight percent of the total variance was explained by two dimension factors: coordination facilitation competence and direct care competence. Participants who had undertaken case management courses had superior case management ability compared with those who had not, indicating that the scale possesses excellent discriminant validity. Cronbach's alpha and the test retest results showed excellent reliability. Of the two competence factors, direct care competence (3.03) was better than coordination facilitation competence (2.81). CONCLUSIONS/IMPLICATIONS FOR PRACTICE: There is a dearth of studies investigating the development and psychometric testing of case management competence scales. The results of this study provide evidence to support the reliability and validity of the developed case management competence scale among Taiwanese psychiatric nurses. It is a reliable and valid assessment instrument that may help identify educational needs and improve the case management competencies of nurses. PMID- 29016468 TI - A Systematic Review of Reminiscence Therapy for Older Adults in Taiwan. AB - BACKGROUND: Population aging is an increasing phenomenon in many countries around the world. It has been estimated that more than one quarter of all older adults experience a mental or neurological disorder or disease such as dementia, depression, anxiety, and substance abuse. Reminiscence is a popular treatment for enhancing well-being in older adults. Previous studies have shown that reminiscence therapy improves the cognitive functions, behaviors, and other psychosocial outcomes in older adult patients. The themes and materials that are used in reminiscence treatments for the older adults in Taiwan differ from those used in other countries because of Taiwan's unique historical background and culture. PURPOSE: The main purpose of the current study was to review systematically the application and outcomes of reminiscence therapy in Taiwan. METHOD: The terms "reminiscence," "dementia," "Alzheimer's disease," and "Taiwan" were used in an Integrated Resources Search that was conducted at National Taiwan Normal University. Sixteen articles were systematically reviewed using a synthesis of two matrices of experimental designs and intervention designs. RESULT: Reminiscence group sizes ranged between 7 and 12 participants, session frequencies were all once a week for periods lasting between 4 and 16 weeks, and session durations ranged from 30 minutes to 2 hours. The memories of the participants were stimulated using materials dating from their youth such as Taiwanese folk songs, toys, photos, radio programs, newspapers, and food and drinks. In terms of research methodology, most of the studies that were reviewed used quasi-experimental designs without random assignment or control group due to sample size. A minority of the reviewed studies applied the randomized controlled treatment method. Only a few of the studies evaluated indicators in pretest, posttest, and follow-up periods. The results of these studies identified several benefits of reminiscence therapy in Taiwanese older adults, including improvements in cognitive function, anxiety, depressive symptoms, self-esteem, life satisfaction, and personal interaction. CONCLUSIONS: Reminiscence is a good noninvasive treatment for the prevention and treatment of mental diseases in Taiwanese older adults. Furthermore, reminiscence promotes mental health in older adults. Finally, this study provides recommendations for further study and clinical application of reminiscence therapy in Taiwan. PMID- 29016469 TI - Relationship Between Lifestyles That Promote Health and Quality of Life in Patients With Chronic Schizophrenia: A Cross-Sectional Study. AB - BACKGROUND: Over the last few decades, an increasing number of studies have examined quality of life in patients with chronic schizophrenia. However, little research has addressed the relationship between lifestyles that promote health and quality of life issues in these patients. PURPOSE: The aim of this study was to investigate the relationships between lifestyles that promote health and quality of life in patients with chronic schizophrenia. METHODS: A cross sectional study design was used. The study was conducted at 10 hospital-based psychiatric rehabilitation units in northern Taiwan. In total, 357 participants completed the World Health Organization Quality of Life-BREF and the Health Promoting Lifestyle Profile. This study examined the relationships among the six domains of the Health-Promoting Lifestyle Profile and the four domains of the Quality of Life-BREF using canonical correlation analysis. Data collection occurred between April 2013 and April 2014. RESULTS: The results of the canonical correlation analysis showed that the Health-Promoting Lifestyle Profile domains of nutrition, health responsibility, self-actualization, interpersonal support, exercise, and stress management were significantly related to the Quality of Life BREF results, specifically in the physical, psychological, and social relationships and environment domains. Two canonical correlations were identified (the canonical correlation coefficients were .622 and .317), which showed that 38.6% of the variance in lifestyles that promote health and quality of life was shared. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: The results of this study may be useful to practitioners who are responsible for lifestyles that promote health and quality of life issues in patients with chronic schizophrenia. PMID- 29016471 TI - An Update on the Diagnosis, Grading, and Staging of Appendiceal Mucinous Neoplasms. AB - Despite advances in our understanding of appendiceal mucinous neoplasms and their relationship to the pseudomyxoma peritonei syndrome, the classification of mucinous tumors of the appendix is still confusing. This review will provide an update on the various classification systems that have been recently proposed for appendiceal mucinous neoplasia, with a particular emphasis on how to handle and report the histologic findings for these tumors using the newly published Peritoneal Surface Oncology Group International (PSOGI) and American Joint Committee on Cancer (AJCC) eighth edition guidelines. A simplified approach to diagnostic reporting of appendiceal mucinous neoplasms based on the 3-tier AJCC grading scheme is detailed and specific criteria for assessing grade in appendiceal mucinous neoplasia will be outlined. In addition, histologic mimics of appendiceal mucinous neoplasia and how to distinguish these mimics from mucinous neoplasia will be discussed. Finally, despite improvements in diagnostic terminology, significant challenges in classifying appendiceal mucinous neoplasia persist and diagnostic strategies will be detailed to assist practicing pathologists in these challenging scenarios. PMID- 29016470 TI - Efficacy of branched-chain amino acid supplementation and walking exercise for preventing sarcopenia in patients with liver cirrhosis. AB - BACKGROUND/AIM: Sarcopenia is recognized as a condition related to quality of life and prognosis in patients with chronic liver disease, although no useful strategy for improving muscle volume and strength has been established. Here, we evaluated the efficacy of supplementation with branched-chain amino acid (BCAA) administration and walking exercise. PATIENTS AND METHODS: From December 2015 to July 2016, 33 Japanese outpatients with liver cirrhosis were enrolled (median: 67 years, HCV : HBV : alcohol : others=26 : 2 : 2 : 3, male : female=13 : 20, Child Pugh A : B=30 : 3). None had a history of BCAA supplementation. After calculating the average number of daily steps using a pedometer for a 2-3-week period, BCAA supplementation (protein 13.5 g, 210 kcal/day) as a late evening snack and walking exercise (additional 2000 steps/day prescribed) were started. Body composition including muscle volume was analyzed using a bioelectrical impedance analysis method, and serological data and muscle strength (leg, handgrip) were evaluated at enrollment, and then 1, 2, and 3 months after starting the protocol. RESULTS: The median average number of daily steps was 3791 (interquartile range: 2238-5484). The average period of BCAA supplementation was 2.7+/-0.7 months. During the period from enrollment to 3 months after starting the protocol, HbA1c and NH3 were not significantly changed, whereas the BCAA/tyrosine ratio improved (4.3+/-1.35 to 5.24+/-2.04, P=0.001). In addition, the ratios for average daily steps (1.595, P=0.02) as well as muscle volume, leg strength, and handgrip strength (1.013, 1.110, and 1.056, respectively; all P<0.01) were increased at 3 months. CONCLUSION: BCAA supplementation and walking exercise were found to be effective and easily implemented for improving muscle volume and strength in liver cirrhosis patients. PMID- 29016472 TI - Longitudinal Changes in Body Composition Throughout Successive Seasonal Phases Among Canadian University Football Players. AB - Kim, J, Delisle-Houde, P, Reid, RER, and Andersen, RE. Longitudinal changes in body composition throughout successive seasonal phases among Canadian university football players. J Strength Cond Res 32(8): 2284-2293, 2018-The purpose of this study was to assess changes in body composition during seasonal phases of the training year among Canadian Inter-University Sport (CIS) football players. Forty university football players were assessed for anthropometry, total body composition, regional body composition, and central adiposity over a 7-month period including the summer off-season and the in-season. Baseline testing occurred in April, before the summer off-season, and follow-ups were completed before training camp, at the beginning of August, and following the in-season, at the beginning of November. Linemen had the greatest tissue percent fat (25.98 +/- 6.56%) at baseline, significantly (p < 0.01) greater than big skill (18.69 +/- 3.97%) and followed by skill (14.35 +/- 3.39%) who were significantly (p < 0.01) leaner than both other groups. Skill players significantly increased fat mass (0.98 +/- 0.30 kg, p <= 0.05) and waist-to-hip ratio (0.02 +/- 0.01, p <= 0.05) during the in-season, and linemen increased visceral fat mass from April to November (0.20 +/- 0.06 kg, p <= 0.01). All players significantly (-1.26 +/- 0.30 kg, p = 0.001) decreased lean mass during the in-season. All groups significantly increased bone mineral content during the summer off-season (p <= 0.05). There was also a significant time * summer training location interaction (p <= 0.05) for fat mass with athletes who remained on campus during summer months gaining the least amount of adiposity. Body composition and central adiposity seem to change differentially among positional groups across the annual training season. PMID- 29016473 TI - Effects of low-load, higher-repetition versus high-load, lower-repetition resistance training not performed to failure on muscle strength, mass, and echo intensity in healthy young men: a time-course study. AB - The aim of the present study was to compare the effects of low-load, higher repetition training (LLHR) with those of high-load, lower-repetition training (HLLR) on muscle strength, mass, and echo intensity in healthy young men. Fifteen healthy men (age, 23.1 +/- 2.6 years) were randomly assigned to one of the two groups: LLHR or HLLR group. Resistance training on knee extensor muscles was performed 3 days per week for 8 weeks. One-repetition maximum (1RM) strength, maximum isometric strength, muscle thickness and muscle echo intensity on ultrasonography of the rectus femoris muscle were assessed every 2 weeks. Analysis of variance showed no significant group * time interaction, and only a significant main effect of time was observed for all variables. The 8-week resistance training increased 1RM, maximum isometric muscle strength, and muscle thickness by 36.2%-40.9%, 24.0%-25.5%, and 11.3%-20.4%, respectively, whereas it decreased echo intensity by 8.05%-16.3%. Significant improvements in muscle strength, thickness, and echo intensity were observed at weeks 2, 4, and 8, respectively. The lack of difference in time-course changes between LLHR and HLLR programs suggests that low-load training can exert similar effects on muscle mass and characteristics as high-load training by increasing the number of repetitions, even when not performed to failure. PMID- 29016474 TI - Cardiac Autonomic and Blood Pressure Responses to an Acute Bout of Kettlebell Exercise. AB - Kettlebell (KB) training has become an extremely popular exercise program for improving both muscle strength and aerobic fitness. However, the cardiac autonomic modulation and blood pressure (BP) responses induced by an acute KB exercise session are currently unknown. Understanding the impact of this exercise modality on the post-exercise autonomic modulation and BP would facilitate appropriate exercise prescription in susceptible populations. The present study evaluated the effects of an acute session of KB exercise on heart rate variability (HRV) and BP responses in healthy individuals. Seventeen (M=10, F=7) healthy subjects completed either a KB or non-exercise control trial in randomized order. HRV and BP measurements were collected at baseline, 3, 10 and 30 min after each trial. There were significant increases (P < 0.01) in heart rate, markers of sympathetic activity (nLF) and sympathovagal balance (nLF/nHF) for 30 min after the trial KB trial, while no changes from baseline were observed after the control trial. There were also significant decreases (P < 0.01) in markers of vagal tone (RMMSD, nHF) for 30 min as well as (P < 0.01) systolic BP and diastolic BP at 10 and 30 min after the trial KB trial while no changes from baseline were observed after the control trial. Our findings indicate that KB exercise increases sympathovagal balance for 30 min post-intervention which is concurrent with an important hypotensive effect. Further research is warranted to evaluate the potential clinical application of KB training in populations that might benefit from post-exercise hypotension, such as hypertensives. PMID- 29016475 TI - Relationship between Physiological Off-Ice Testing, On-Ice Skating, and Game Performance in Division I Women's Ice Hockey Players. AB - The purpose was to identify off-ice testing variables that correlate to skating and game performance in Division I collegiate women ice hockey players. Twenty female, forward and defensive players (19.95 +/- 1.35 yr) were assessed for weight, height, percent fat mass (%FAT), bone mineral density, predicted one repetition maximum (RM) absolute and relative (REL%) bench press (BP) and hex bar deadlift (HDL), lower body explosive power, anaerobic power, countermovement vertical jump (CMJ), maximum inspiratory pressure (MIP), and on-ice repeated skate sprint (RSS) performance. The on-ice RSS test included 6 timed 85.6 m sprints with participants wearing full hockey equipment; fastest time (FT), average time (AT) and fatigue index (FI) for the first length skate (FLS; 10 m) and total length skate (TLS; 85.6 m) were used for analysis. Game performance was evaluated with game statistics: goals, assists, points, plus-minus, and shots on goal (SOG). Correlation coefficients were used to determine relationships. Percent fat mass was positively correlated (p < 0.05) with FLS-FI and TLS-AT; TLS FT was negatively correlated with REL%HDL; BP-RM was negatively correlated with FLS-FT and FLS-AT; MIP positively correlated with assists, points, and SOG; FLS AT negatively correlated with assists. Game performance in women ice hockey players may be enhanced by greater MIP, repeat acceleration ability, and mode specific training. Faster skating times were associated with lower %FAT. Skating performance in women ice hockey players may be enhanced by improving body composition, anaerobic power, and both lower and upper body strength in off-ice training. PMID- 29016476 TI - Effects of in-season circuit training on physical abilities in male handball players. AB - This study analyzed the effects of a resistance-type circuit training program (RCT) (30-35 minutes, performed twice a week for 10 weeks) on male handball players. Twenty-two males were divided into experimental (E; age 20.3 +/- 0.5 years) and control groups (C; age 20.1+/- 0.5 years). Measures before and after RCT included squat (SJ) and countermovement jumps (CMJ), one repetition maximum (1-RM) ofbench press, pull-over and back half-squats, throwing velocity (a 3-step throw with run (RT), and a jump throw (JT)), repeated-sprint ability (six 2 x 15 m shuttle sprints with recording of best time for a single trial), anthropometric estimates of leg and thigh muscle volumes and mean thigh cross-sectional area (CSA), and a test of agility. The agility T-half test showed a significant interaction effect (p=0.001; eta=0.422), with an inter-group difference in effect size (d) of 1.27 (dTG=1.24 vs. dCG=-0.03). The SJ displayed no interaction effect. The interaction effects for half back-squat (d=2.73, eta=0.740) and CMJ (d=3.76, eta=0.700) were large, but that for RT was smaller (eta=0.460) than that for JT (eta=0.745). The throwing velocity of C decreased for both measures, with negative effect sizes (d=-0.18 and d=-0.93 respectively). Upper body, leg, and thigh muscle volumes and thigh CSA increased significantly after resistance training. However, repeated-sprint parameters showed no significant changes. During the competitive season, 10 weeks of RCT with only 2 training sessions per week improved numerous measures of athletic performance in handball players, and such conditioning can be highly recommended as part of the annual training program for elite handball players. PMID- 29016477 TI - Shod vs. Barefoot Effects on Force and Power Development During a Conventional Deadlift. AB - Hammer, ME, Meir, RA, Whitting, JW, and Crowley-McHattan, ZJ. Shod vs. barefoot effects on force and power development during a conventional deadlift. J Strength Cond Res 32(6): 1525-1530, 2018-The kinetics of a conventional deadlift in shod (S) vs. unshod (US) footwear conditions in 10 male participants (mean +/- SD, age = 27.0 +/- 5.8 years; body mass = 78.7 +/- 11.5 kg; height = 175.8 +/- 8.2 cm; 1 repetition maximum [1RM] deadlift = 155.8 +/- 25.8 kg) was assessed in 2 testing sessions. A counterbalanced, cross-over experimental design was used with different loads (60 and 80% 1RM). Four sets of 4 repetitions were prescribed per session with 2 sets per shoe and with each shoe condition involving 1 set per load. Peak vertical force (PF), rate of force development (RFD), time to peak force (TPF), anterior-posterior (COP-AP) and mediolateral (COP-ML) center of pressure excursion, and barbell peak power data were recorded during all repetitions. Except for RFD (F = 6.389; p = 0.045; etap = 0.516) and ML-COP (F = 6.696; p = 0.041; etap = 0.527), there were no other significant main effects of shoe. There were significant main effects of load for PF (p <= 0.05), COP-AP (p = 0.011), TPF (p = 0.018), and COP-AP (p = 0.011). There were no significant interactions found between session, shoe, and load (p range from 0.944 to 0.086). Although the US condition may have produced changes in RFD and ML-COP compared with the shod condition, there is only limited evidence in the current study to support this lifting technique for the conventional deadlift. Further investigation is required to clarify any possible implications of this result and its benefit to lifters. PMID- 29016478 TI - Subjective And Objective Responses To Two Rugby 7's World Series Competitions. AB - The purpose was to examine the utility of subjective and objective measures of player preparedness, interpreted at both a group and individual level, during two consecutive competitions of the World Rugby Sevens Series (WRSS). Subjective (sleep, energy and muscle soreness ratings) and objective [heart rate (HR) at rest (HRREST) and in response to submaximal exercise (HREX)] measures were obtained from 16 male Rugby-7s players from one team for three consecutive days (D1-3) at home (HOME) and upon arrival at four tournament (T1-4) locations (T1 New Zealand and T2-USA; T3-Hong Kong and T4-Tokyo) across two WRSS competitions (two tournaments per competition) separated by 1 month. At a group level, energy ratings were significantly lower in T2 and T4 compared to HOME, and on D1 T2 compared to D1 T1 (p=<0.05). Greatest variability in subjective ratings was observed during T1 and T3 at an individual level, particularly for sleep quality. Though at a group level HRREST and HREX significantly decreased in T1-4 compared to HOME (p=<0.05), there was only a ~50% agreement between the direction of change in HR indices at an individual level. Results from the present study suggest that relocation between tournaments within WRSS competitions disrupts player preparedness measures to the largest degree. Hence, this time period could be targeted by practitioners with appropriate recovery and/or sleep promoting interventions and/or modulation of match-/training-load. Moreover, subjective rather than objective measures appear of greater use to inform player preparedness decision making, particularly at an individual compared to a group level. PMID- 29016479 TI - The Effects of Foam Rolling as a Recovery Tool in Professional Soccer Players. AB - Foam rolling (FR) is a common strategy used after training and competition by players. However, no previous studies have assessed the effectiveness of FR as recovery tool in sports populations. The aim of this study was to examine the effectiveness of FR (20 minutes of foam rolling exercises on quadriceps, hamstrings, adductors, gluteals, and gastrocnemius) and passive recovery (20 minutes sit on a bench) interventions performed immediately after a training session on Total Quality Recovery (TQR), perceived muscle soreness, jump performance, agility, sprint, and flexibility 24 hours after the training. During 2 experimental sessions, 18 professional soccer players (age 26.6 +/- 3.3 years; height: 180.2 +/- 4.5 cm; body mass: 75.8 +/- 4.7 kg) participated in a randomized fully controlled trial design. The first session was designed to collect the pre-test values of each variable. After baseline measurements, the players performed a standardized soccer training. At the end of training unit, all the players were randomly assigned to the FR recovery group and the passive recovery group. A second experimental session was carried out to obtain the posttest values. Results from the between-group analyses showed that FR had a large effect on the recovery in agility (Effect Sizes [ES]= 1.06), TQR (ES= 1.08), and perceived muscle soreness (ES= 1.02) in comparison to passive recovery group at 24 h post-training. Thus, it is recommended soccer coaches and physical trainers working with high-level players use a structured recovery session lasting from 15 to 20 min based on FR exercises that could be implemented at the end of a training session to enhance recovery between training loads. PMID- 29016480 TI - Revisiting the Single-Visit Protocol for Determining the Electromyographic Fatigue Threshold. AB - Khan, FL, Lawal, JM, Kapture, DO, Swingle, JD, and Malek, MH. Revisiting the single-visit protocol for determining the electromyographic fatigue threshold. J Strength Cond Res 31(12): 3503-3507, 2017-The electromyographic fatigue threshold (EMGFT) has been shown to demarcate between nonfatiguing and fatiguing exercise workloads. One potential limitation of incorporating the single EMGFT test in a clinical setting is the 2-minute stage increment inherit to the protocol. In most rehabilitation clinics, time with the client is limited, and any testing procedure needs to consider this factor. The purpose of this study, therefore, was to determine whether or not the estimation of the EMGFT is influenced by reducing the incremental stage to 1-minute intervals. We hypothesized that the 1 minute incremental protocol would provide similar estimates of the EMGFT as the traditional 2-minute incremental protocol. Nine college-aged men performed the single-leg knee-extensor ergometry at 1-minute (3 W) and 2-minute (6 W) stages in random order separated by 7 days. The exercise indices and the EMGFT were determined from the 2 protocols and analyzed using a paired samples t test. The EMG amplitude was assessed from the rectus femoris muscle. The results indicated significant differences between protocols for maximal power output (1 minute: 31.7 +/- 2.2 W vs. 2 minutes: 38.0 +/- 3.3 W, p = 0.016) and heart rate at end exercise (1 minute: 137 +/- 5 b.min vs. 2 minutes: 148 +/- 5 b.min, p = 0.024). There were, however, no significant mean differences for the EMGFT (1 minute: 19.8 +/- 1.8 vs. 2 minutes: 20.3 +/- 1.9 W, p = 0.63) and rating of perceived exertion (RPE) for the exercised leg (1 minute: 9 +/- 0 vs. 2 minutes: 9 +/- 1, p = 0.68). These results indicate that reducing the exercise protocol by 50% did not change the estimated EMGFT. The practical application of this finding resides in the potential use in sports or rehabilitative settings in which there is limited time with the client and no objective measures to determine neuromuscular fatigue for aerobic exercise. PMID- 29016481 TI - Auto-regulated exercise selection training regimen produces small increases in lean body mass and maximal strength adaptations in strength-trained individuals. AB - The purpose of this investigation was to compare the effects of auto-regulatory exercise selection (AES) vs. fixed exercise selection (FES) on muscular adaptations in strength-trained individuals. Seventeen males (Mean +/- SD; age = 24 +/- 5.45 years; height = 180.3 +/- 7.54cm, lean body mass [LBM] 66.44 +/- 6.59kg; squat and bench press 1RM: body mass ratio 1.87, 1.38 respectively) were randomly assigned into either AES or FES. Both groups trained three times a week for 9 weeks. AES self-selected the exercises for each session, whereas FES was required to perform exercises in a fixed order. LBM was assessed via DEXA and maximum strength via 1RM testing, pre and post training intervention. Total volume load was significantly higher for AES than for FES (AES: 573,288kg +/- 67,505, FES: 464,600 +/- 95,595, p=0.0240). For LBM, there was a significant main time effect (p=0.009). However, confidence interval analysis (95%CIdiff) suggested that only AES significantly increased LBM (AES: 2.47%, ES: 0.35, 95% CIdiff [0.030kg: 3.197kg], FES: 1.37 %, ES: 0.21, 95% CIdiff [-0.500kg: 2.475kg]). There was a significant main time effect for maximum strength (p<=0.0001). However, 95% CIdiff suggested that only AES significantly improved Bench-press 1RM (AES: 6.48%, ES: 0.50, 95% CIdiff [0.312kg: 11.42kg; FES: 5.14%, ES: 0.43 95%CIdiff [-0.311kg: 11.42kg]. On the other hand for back squat 1RM similar responses were observed between groups, (AES: 9.55%, ES: 0.76 95% CIdiff [0.04kg: 28.37kg], FES: 11.54%, ES: 0.80, 95%CIdiff [1.8kg: 28.5kg]. Our findings, suggest AES may provide a small advantage in LBM and upper body maximal strength in strength-trained individuals. PMID- 29016482 TI - Relationship between physical performance testing results and peak running intensity during professional rugby league match play. AB - The purpose of this study was to examine the relationship between individual athletes' physical characteristics and both the peak running intensities and the decline in peak running intensities during competition. Twenty-two professional rugby league athletes (age; 24.1 +/- 4.0 years, body mass; 101.4 +/- 9.5 kg) underwent a series of physical testing procedures. Peak running intensity was determined using a moving average technique, applied to the speed (m.min), acceleration/deceleration (m.s) and metabolic power (W.kg) during competition, across 10 different durations. The power law relationship was then established, yielding an intercept and slope for the movement variables. Mixed linear models were then used to determine the relationship between physical characteristics and intercept and slope values. There were large, positive relationships between a player's maximal speed and both peak running speeds (ES = 0.56, 90% CI: 0.20 to 0.78) and metabolic power (0.57, 0.21 to 0.79) during competition. In contrast, there were large, negative associations between maximal speed and the rate of decline in running speed (-0.60, -0.81 to -0.27) and metabolic power (-0.65, 0.83 to -0.32) during competition. Similarly, there were negative associations between relative squat strength and the rate of decline in running speed (moderate: -0.41, -0.69 to -0.04) and metabolic power (large: -0.53, -0.77 to 0.17) during competition. The findings of this study demonstrate that a players running intensity during competition is underpinned by the individual athletes physiological qualities. Athletes demonstrating higher maximal speeds in testing were able to maintain higher running intensities over short durations, but had a greater decrease in running intensity as duration increased. PMID- 29016483 TI - Hydration Status and Thermoregulatory Responses in Drivers During Competitive Racing. AB - Carlson, LA, Lawrence, MA, and Kenefick, RW. Hydration status and thermoregulatory responses in drivers during competitive racing. J Strength Cond Res 32(7): 2061-2065, 2018-Stock car drivers are exposed to high ambient temperatures, further complicated by the fact that they are encapsulated in protective clothing; however, the hydration status of these drivers has not been determined. This study quantified the degree of fluid losses during a competitive event in hot conditions. Nine male stock car drivers (29.6 +/- 9.4 years, 177.8 +/- 3.0 cm, 81.5 +/- 18.5 kg) were studied during a Pro Series Division NASCAR race. Sweat rate (SR) and dehydration was determined through nude body weights (BWs). Prerace BW was 81.5 +/- 18.5 kg and decreased to 81.1 +/- 18.5 kg after race (p = 0.001). Body weight loss after race was 0.77 +/- 0.3% and mean SR was 0.63 +/- 0.4 L.h. Intestinal core temperature increased from 38.0 +/- 0.4 to 38.5 +/- 0.4 degrees C after race (p = 0.001). Skin temperature increased from 35.8 +/- 0.8 to 36.9 +/- 0.8 degrees C after race (p = 0.001), whereas the core-to skin temperature gradient narrowed from 2.2 +/- 0.9 to 1.6 +/- 0.9 degrees C, before race to after race (p = 0.001). Heart rates after race were 89 +/- 0.0% of the drivers' age-predicted maximum heart rate (HR). Fluid losses during competitive racing can be significant. Without a fluid replacement strategy, fluid losses may exceed 3% of BW and could negatively impact driving performance in longer races. PMID- 29016484 TI - A Novel Combination of Biomarkers to Herald the Onset of Sepsis Prior to the Manifestation of Symptoms. AB - Sepsis, which kills over 200,000 patients and costs over $20 billion in the United States alone, presents a constant but preventable challenge in the healthcare system. Among the more challenging problems that it presents is misdiagnosis due to conflation with other inflammatory processes, as its mechanisms are identical to those of other inflammatory states. Unfortunately, current biomarker tests can only assess the severity and mortality risk of each case, whereas no single test exists that can predict sepsis prior to the onset of symptoms for the purpose of pre-emptive care and monitoring. We propose that a single test utilizing three, rather than two, biomarkers that appear most quickly in the blood and are the most specific for sepsis rather than trauma, may improve diagnostic accuracy and lead to lessened patient morbidity and mortality. Such a test would vastly improve patient outcomes and quality of life, prevent complications for sepsis survivors, and prevent hospital readmissions, saving the American healthcare system money. This review summarizes the current use of sepsis biomarkers to prognosticate morbidity and mortality, and rejects the current single-biomarker and even combination biomarker tests as non-specific and inaccurate for current patient needs/pro-inflammatory cytokines, general markers of inflammation, and proteins specific to myeloid cells (and therefore to infection) are discussed. Ultimately, the review suggests a three-biomarker test of procalcitonin (PCT), interleukin-6 (IL-6), and soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) to diagnose sepsis before the onset of symptoms. PMID- 29016485 TI - A Medically Supervised Pregnancy Exercise Intervention in Obese Women: A Randomized Controlled Trial. AB - OBJECTIVE: To evaluate whether an intensive, medically supervised exercise intervention improved maternal glycemia and gestational weight gain in obese pregnant women when compared with routine prenatal care. METHODS: This randomized controlled trial compared a medically supervised exercise intervention with routine prenatal care. The primary outcome was a reduction in mean maternal fasting plasma glucose in the intervention group by 6.9 mg/dL at the time of a 75 g oral glucose tolerance test at 24-28 weeks of gestation. Secondary outcomes included excessive gestational weight gain. The intervention consisted of 50-60 minutes of exercise: warm-up, resistance or weights, aerobic exercises, and cool down. All women received routine prenatal care. Power calculation determined that 24 women were required per group to detect a difference of 6.9 mg/dL in fasting plasma glucose between groups based on an independent-sample t test for statistical power of 80% at a type I error rate of 0.05. A sample size of 44 per group was planned to allow a dropout rate of 33%. RESULTS: From November 2013 through August 2015, 88 women were randomized: 44 each to the exercise and control groups. Eight women in the control group and 11 in the intervention group did not complete the trial at 6 weeks postpartum (P=.61), but 43 in each group attended the 24- to 28-week glucose screen. There were no baseline maternal differences between groups. Classes commenced at a mean of 13 4/7+/-1 2/7 weeks of gestation. In early pregnancy, 51.1% (n=45/88) had an elevated fasting plasma glucose (92-125 mg/dL). There was no difference in the mean fasting plasma glucose at 24-28 weeks of gestation: 90.0+/-9.0 mg/dL (n=43) compared with 93.6+/ 7.2 mg/dL (n=43) (P=.13) or in the incidence of gestational diabetes mellitus at 24-28 weeks of gestation: 48.8% (n=21/43) compared with 58.1% (n=25/43) (P=.51) in the control and exercise groups, respectively. At 36 weeks of gestation, excessive gestational weight gain greater than 9.1 kg was lower in the exercise group, 23.5% compared with 45.2% in the control group (P<.05). CONCLUSION: An intensive, medically supervised exercise intervention for obese women from early pregnancy did not improve maternal glycemia. Pregnant women who are obese, however, should be advised to exercise because it attenuates excessive gestational weight gain. CLINICAL TRIAL REGISTRATION: International Standard Randomised Controlled Trials (ISRCTN) registry, ISRCTN 31045925. PMID- 29016486 TI - Salpingectomy for Sterilization: Change in Practice in a Large Integrated Health Care System, 2011-2016. AB - OBJECTIVE: To evaluate the utilization rate of salpingectomy for cesarean deliveries and postpartum and interval tubal sterilization procedures. METHODS: This is a retrospective cohort study using the electronic medical record to identify women older than 18 years of age undergoing surgical sterilization from June 2011 to May 2016 in an integrated health care system. The primary objective is to describe the change in utilization rate of salpingectomy for tubal sterilization procedures over time and after a systemwide practice recommendation was issued in 2013. Rates of salpingectomy and tubal occlusion were calculated for each of the five 1-year intervals in the study. Secondary outcomes included blood loss, operating time, length of stay, readmission, and emergency department visits. RESULTS: A total of 10,741 tubal sterilization procedures were identified. There was an increase in salpingectomies from 0.4% (8/1,938; 95% CI 0.2-0.8) to 35.5% (902/2,538; 95% CI 33.7-37.4) of tubal sterilization procedures performed over the study period (test for trend, P<.001). Salpingectomy instead of tubal occlusion increased at cesarean delivery from 0.1% (1/1,141; 95% CI 0.0 0.5) to 9.2% (125/1,354; 95% CI 7.8-10.9) (test for trend, P<.001); postpartum from 0% (0/124; 95% CI 0.0-3.0) to 4.5% (9/201; 95% CI 2.4-8.3) (test for trend, P=.003); and as an interval (nonpartum) tubal sterilization procedure from 1% (7/673; 95% CI 0.5-2.1) to 78% (768/983; 95% CI 75.4-80.6) (test for trend, P<.001). Median operative minutes was increased from 52 (95% CI 51-52) to 61.5 (95% CI 57-64), from 33 (95% CI 32-34) to 50 (95% CI 35-64), and from 30 (95% CI 29-30) to 33 (95% CI 32-33), respectively, for salpingectomy compared with tubal occlusion at cesarean delivery and postpartum and interval sterilization. Median blood loss was similar for salpingectomy and tubal occlusion at cesarean delivery (660 mL; 95% CI 600-700 mL compared with 700 mL; 95% CI 680-700 mL) and interval sterilization (both 5 mL; 95% CI 5-5 mL) but was more for salpingectomy postpartum (250 mL; 95% CI 200-500 mL compared with 200 mL; 95% CI 200-200 mL). CONCLUSION: There was a significant increase in salpingectomy for sterilization from June 2011 to May 2016. In the final year of the study, salpingectomy accounted for 78% of interval laparoscopic tubal sterilization procedures and 9% of intrapartum and postpartum procedures. PMID- 29016487 TI - Ovarian Vein Thrombosis: Incidence of Recurrent Venous Thromboembolism and Survival. AB - OBJECTIVE: To identify the risk of venous thromboembolism recurrence, major bleeding, and mortality in patients with ovarian vein thrombosis so as to better define optimal treatment strategies. METHODS: Patients with ovarian vein thrombosis (1990-2015) and age- and gender-matched patients with contemporary leg deep vein thrombosis (DVT) were assessed for differences in etiology, venous thromboembolism recurrence, and survival in a case-control study. RESULTS: Over the timeframe of this study, only 219 ovarian vein thrombosis cases were identified compared with 13,417 leg DVTs. Median duration of follow-up was 1.23 years (interquartile range 0.25-4.14). Pulmonary embolism was identified at presentation in 6% of patients with ovarian vein thrombosis and 16% of those with DVT (P=.001). Frequent causes of ovarian vein thrombosis included cancer, hormonal stimulation, surgery, and hospitalization. Cancer was twofold more frequent in patients with ovarian vein thrombosis (44% compared with 21%; P<.01). Despite being less frequently treated with anticoagulation (ovarian vein thrombosis 54% compared with DVT 98%, P<.001), venous thromboembolism recurrence rates were similar between groups (ovarian vein thrombosis 2.3 compared with DVT 1.8 per 100 patient-years, P=.49). A personal history of venous thromboembolism and preceding surgery was found to be an independent risk factor for venous thromboembolism recurrence among those treated with anticoagulation (hazard ratio 6.7, P=.04 and hazard ratio 13.6, P=.03, respectively). There was no significant difference in overall survival. CONCLUSION: Ovarian vein thrombosis is a rare thrombotic condition with an incidence 60-fold lower compared with leg DVT in our institution. The striking association with cancer adversely affects overall survival rates in patients with ovarian vein thrombosis. Venous thromboembolism recurrence rates argue for anticoagulation with a direct oral anticoagulant or vitamin K antagonist, particularly in those with a history of venous thromboembolism. PMID- 29016488 TI - Pregnancy Outcomes Among Deaf Women in Washington State, 1987-2012. AB - OBJECTIVE: To evaluate pregnancy and neonatal outcomes among deaf women using population-based vital records data in Washington State from 1987 to 2012. METHODS: We performed a retrospective cohort study using the Washington State birth and fetal death records linked to state hospital discharge records to identify women with diagnosis codes for deafness indicated at their delivery hospitalization and compared them with randomly selected women without these codes. Pregnancy conditions and outcomes evaluated included gestational diabetes, preeclampsia, placental abruption, labor induction, and cesarean delivery. Neonatal outcomes evaluated included preterm gestational age (less than 28, 28 to less than 37 weeks) at delivery and low birth weight. We also assessed length of maternal and neonatal delivery hospitalization. We performed Poisson regression to estimate relative risks (RRs) and 95% CIs for each outcome, adjusting for birth year, maternal age, and parity. RESULTS: Most adverse pregnancy and neonatal outcomes were similar for deaf and comparison women. Among women who underwent vaginal delivery, deaf women were more than twofold (RR 2.15, 95% CI 1.43-3.22) more likely to have a delivery hospitalization of 4 or more days (6.0% compared with 2.8%). We found a modestly increased risk of cesarean delivery (RR 1.15, 95% CI 1.01-1.30), with 29.9% of deaf compared with 25.6% of nondeaf women having a cesarean delivery. CONCLUSION: Deaf women are not at increased risk of the majority of adverse pregnancy and neonatal outcomes. Obstetric care providers may use our findings in counseling this special population of prenatal patients. PMID- 29016489 TI - First-Trimester Serum Fatty Acid-Binding Protein 4 and Subsequent Gestational Diabetes Mellitus. AB - OBJECTIVE: To examine whether plasma fatty acid-binding protein 4 concentrations, measured in the first trimester, are associated with gestational diabetes mellitus (GDM). METHODS: This prospective, multicenter cohort study was conducted at three maternity centers in two cities (Harbin and Beijing) in China from July 2015 to June 2016. Data for fasting plasma glucose and fatty acid-binding protein 4 concentrations in the first trimester and one-step GDM screening with a 75-g oral glucose tolerance test performed between 24 and 28 weeks of gestation were collected and analyzed. RESULTS: Plasma from women in the first trimester was available for 1,150 women, of whom 135 (11.7%) developed GDM. The GDM distribution across the fatty acid-binding protein 4 quartiles ranged from 3.8% (first quartile) to 21.6% (fourth quartile). In multivariate models comparing the second (quartile 2), third, and fourth quartiles against the first quartile of fatty acid-binding protein 4, concentrations of fatty acid-binding protein 4 in quartile 2, quartile 3, and quartile 4 were associated with the development of GDM with respective associated adjusted odds ratios (95% CIs) of 1.76 (1.21 2.58), 2.36 (1.55-4.29), and 3.57 (1.99-6.11). A significant difference in the area under receiver operating characteristic curve between established risk factors alone and the addition of fatty acid-binding protein 4 concentrations was observed (difference 0.042 [95% CI 0.028-0.055]; P=.03). CONCLUSIONS: Higher fatty acid-binding protein 4 concentrations in the first trimester visit were associated with increased risk of GDM and might be useful in identifying women at risk for GDM for early prevention strategies. PMID- 29016490 TI - Neonatal Morbidity and Maternal Complication Rates in Women With a Delivery Body Mass Index of 60 or Higher. AB - OBJECTIVE: To investigate neonatal morbidity and maternal complication rates with delivery body mass index (BMI) 60 or greater. METHODS: This retrospective, multicenter cohort study included singleton pregnancies between 23 and 42 weeks of gestation from January 2005 to April 2016. Women with BMI 60 or greater were compared with a random sample of women with BMI 30-59. The primary outcome, composite neonatal morbidity, was defined as 5-minute Apgar score less than 7, hypoglycemia, respiratory distress syndrome, sepsis, hospital stay greater than 5 days, neonatal intensive care unit admission, or neonatal death. Secondary outcomes included maternal labor and delivery characteristics and complication rates. Kruskal-Wallis tests and chi or Fisher exact tests were used to compare BMI categories. Multivariable logistic regression was used for adjusted analysis. RESULTS: The study included 338 women, with 39 in the BMI 60 or greater group. An association between obesity and neonatal morbidity was found. Increasing BMI correlated with increasing neonatal morbidity, with the highest rates among those with BMI 60 or greater (BMI 30-39 [17%], 40-49 [19%], 50-59 [22%], 60 or greater [56%]; P<.001). After adjustment for confounders, obese women with BMI less than 60 had at least a 75% reduction in odds of neonatal morbidity compared with women with BMI 60 or greater (BMI 30-39 adjusted odds ratio [OR] 0.22 [0.1-0.5], 40-49 adjusted OR 0.23 [0.1-0.6], 50-59 adjusted OR 0.25 [0.1-0.6]). Maternal complication rates including labor induction, cesarean delivery, wound complication, postpartum hemorrhage, and hospital stay greater than 5 days were also significantly increased with BMI 60 or greater. CONCLUSION: A BMI 60 or greater at the time of delivery is significantly associated with increased neonatal morbidity and increased maternal complication rates. In addition, neonatal morbidity and maternal complication rates with BMI 60 or greater were significantly higher when compared with women in any lesser obese BMI cohort between 30 and 59. PMID- 29016492 TI - Characterizing the Functional Decline of Older Women With Incident Urinary Incontinence. AB - OBJECTIVE: To characterize change in physical performance and differential prevalence of low skeletal muscle mass and strength (sarcopenia) and lower 25 hydroxyvitamin D concentrations among older women who developed urinary incontinence (UI) symptoms. METHODS: This is a secondary analysis of the Health, Aging, and Body Composition Study. Urinary incontinence symptoms were assessed using validated questions. The Short Physical Performance Battery measured physical performance. Sarcopenia, defined by low muscle mass and strength, was determined using validated cutoffs for gait speed, grip strength, and appendicular skeletal muscle mass. All parameters were evaluated at baseline and year 4. Serum 25-hydroxyvitamin D concentrations were assessed at year 2. The primary outcome was change in Short Physical Performance Battery total scores. Sarcopenia and lower serum 25-hydroxyvitamin D concentrations have been independently associated with poor physical performance and UI and were therefore included as secondary outcomes. Univariate and multivariate analyses were used to characterize the associations of change in physical performance from baseline to year 4, incidence of sarcopenia, and lower serum 25-hydroxyvitamin D on the development of UI symptoms. RESULTS: Of the 1,583 women enrolled, 910 were excluded (730 had baseline UI; 180 with missing data). Six hundred seventy-three women were continent at baseline; 223 (33%) developed UI symptoms at year 4. SPPB total scores significantly declined in women with UI versus continent women (mean difference continent-incident UI 0.32, 95% CI 0.04-0.60, P=.02). Of subscale measures, standing balance showed the greatest decline at 0.20 (0.05-0.36; continent-incident UI, respectively; P=.009). Sarcopenia developed at a higher rate with incident UI (adjusted odds ratio [OR] 1.7, 95% CI 1.0-2.9). Low 25 hydroxyvitamin D was not associated with incident UI (adjusted OR 1.1, 95% CI 0.7 1.6 and 1.1, 95% CI 0.7-1.6 for deficient or insufficient versus sufficient status, respectively). CONCLUSION: We observed a significant decline in standing balance among older women who developed UI symptoms. This decline may be associated with coinciding development of sarcopenia. PMID- 29016491 TI - Expanding Prenatal Care to Unauthorized Immigrant Women and the Effects on Infant Health. AB - OBJECTIVE: To measure the effect of access to prenatal care on unauthorized and low-income, new legal permanent resident immigrant women and their offspring. METHODS: We used a difference-in-differences design that leverages the staggered rollout of Emergency Medicaid Plus by county from 2008 to 2013 as a natural experiment to estimate the effect on health service utilization for women and health outcomes for their infants. Regular Medicaid pregnancies were used as an additional control in a triple difference design. RESULTS: Our sample included pregnancies covered by Emergency Medicaid (35,182), Emergency Medicaid Plus (12,510), and Medicaid (166,054). After expansion of access to prenatal care, there was an increase in prenatal visits (7.2 more visits, 95% CI 6.45-7.96), receipt of adequate prenatal care (28% increased rate, CI 26-31), rates of diabetes screening (61% increased rate, CI 56-66), and fetal ultrasonograms (74% increased rate, CI 72-76). Maternal access to prenatal care was also associated with an increased number of well child visits (0.24 more visits, CI 0.07-0.41), increased rates of recommended screenings and vaccines (0.04 increased probability, CI 0.002-0.074), and reduced infant mortality (-1.01/1,000, CI -1.42 to -0.60) and rates of extremely low birth weight (less than 1,000 g) ( 1.33/1,000, CI -2.44 to -0.21). CONCLUSION: Our results provide evidence of increased utilization and improved health outcomes for unauthorized immigrants and their children who are U.S. citizens after introduction of prenatal care expansion in Oregon. This study contributes to the debate around reauthorization of the Children's Health Insurance Program in 2017. PMID- 29016494 TI - Maternal and Neonatal Outcomes in Indicated Preterm Births Based on the Intended Mode of Delivery. AB - OBJECTIVE: To compare maternal and neonatal outcomes in women who underwent induction of labor or planned cesarean delivery in indicated preterm births before 34 weeks of gestation. METHODS: We conducted a retrospective cohort study of all indicated singleton preterm births (23-34 weeks of gestation) in a tertiary center from 2011 to 2014. The primary maternal outcome was a composite of early postpartum hemorrhage, blood transfusion, operative complications, postpartum complications, and clinical chorioamnionitis. The primary neonatal outcome was a composite of neonatal death, cardiopulmonary resuscitation in the delivery room, grade 3 or 4 intraventricular hemorrhage, necrotizing enterocolitis, culture-proven sepsis, birth trauma, arterial cord gas pH less than 7 or base excess less than -12, and 5-minute Apgar score 3 or less. Outcomes were compared by intended mode of delivery (induction of labor compared with cesarean) and adjusted for confounders. In secondary analyses, maternal and neonatal outcomes based on the intended mode of delivery were stratified by gestational age (23-27 6/7, 28-31 6/7, and 32-33 6/7 weeks of gestation). RESULTS: Of 629 patients with indicated early preterm births during the study period, 331 (53%) underwent induction of labor, of whom 208 (63%) delivered vaginally. Induction of labor was not associated with an increased risk of the primary maternal (16.3% compared with 19.5%, adjusted odds ratio [OR] 0.8, 95% CI 0.5-1.3) or neonatal composite outcome (14.5% compared with 35.9%, adjusted OR 0.7, 95% CI 0.4-1.1). Analyses stratified by gestational age were consistent with the overall analysis. CONCLUSION: Maternal and neonatal outcomes do not differ based on the intended mode of delivery. Induction of labor should be considered when early preterm birth is indicated. PMID- 29016493 TI - Early Pregnancy Diabetes Screening and Diagnosis: Prevalence, Rates of Abnormal Test Results, and Associated Factors. AB - OBJECTIVE: To evaluate the prevalence of early diabetes screening in pregnancy, rates of abnormal diabetes test results before 24 weeks of gestation, and factors associated with early diabetes screening. METHODS: This was a retrospective cohort study of all singleton deliveries from 2012 to 2014 among diverse clinical practices at a large academic medical center. We assessed rates of early (less than 24 weeks of gestation) and routine (at or beyond 24 weeks of gestation) diabetes screening, with abnormal test results defined using the Carpenter Coustan criteria, a 50-g glucose challenge test result greater than 200 mg/dL, or a hemoglobin A1C level greater than 6.5%. Univariate and multivariate analyses were used to evaluate clinical and demographic determinants of screening and diagnosis. RESULTS: Overall, 1,420 of 11,331 (12.5%) women underwent early screening. Increasing body mass index (BMI) category, race, public insurance, history of gestational diabetes mellitus, a family history of diabetes, and chronic hypertension were associated with early screening. Early screening rates rose with increasing BMI category, but only 268 of 551 (48.6%) of women with class III obesity underwent early screening. Among those screened early, 2.0% of normal-weight women, 4.0% of overweight women, 4.2% of class I obese women, 3.8% of class II obese women, and 9.0% of class III obese women had abnormal early test results (P<.001). CONCLUSION: Early diabetes screening is used inconsistently, and many women with risk factors do not undergo early screening. A significant proportion of women with class III obesity will test positive for gestational diabetes mellitus before 24 weeks of gestation, and studies are urgently needed to assess the effect of early diabetes screening and diagnosis on perinatal outcomes in high-risk women. PMID- 29016495 TI - A Gartner Duct Cyst Masquerading as Anterior Vaginal Prolapse. AB - BACKGROUND: Gartner duct cysts are embryologic remnants of the mesonephric ducts that may present as a vaginal mass or cyst. CASE: A patient was referred for surgical management of prolapse whose bulging anterior vagina was actually a Gartner duct cyst that required excision as a result of symptoms. Preoperative magnetic resonance imaging helped confirm the diagnosis. CONCLUSION: A Gartner duct cyst may present as a vaginal cyst that, if large, may mimic pelvic organ prolapse. The diagnosis should be considered when a patient's individual prolapse compartments are inconsistent or when physical examination is suggestive of another process. PMID- 29016496 TI - Leiomyomas in Pregnancy and Spontaneous Abortion: A Systematic Review and Meta analysis. AB - OBJECTIVE: To systematically review studies reporting the risk of spontaneous abortion among pregnant women of typical reproductive potential with and without uterine leiomyomas. DATA SOURCES: We searched PubMed, EMBASE, Web of Science, and ClinicalTrials.gov for publications from January 1970 to December 2016. METHODS OF STUDY SELECTION: We excluded studies that did not use imaging to uniformly document leiomyoma status of all participants, did not have a comparison group without leiomyomas, or primarily included women seeking care for recurrent miscarriage, infertility care, or assisted reproductive technologies. TABULATION, INTEGRATION, AND RESULTS: Two authors independently reviewed eligibility, extracted data, and assigned overall quality ratings based on predetermined criteria. Of 1,469 articles identified, nine were eligible. Five enrolled general obstetric populations and four included women undergoing amniocentesis. In five studies in general obstetric populations that included 21,829 pregnancies (1,394 women with leiomyomas and 20,435 without), only one adjusted for potential confounders. This meta-analysis revealed no increase in risk of spontaneous abortion among those with leiomyomas compared with those without (11.5% compared with 8.0%; risk ratio 1.16, 95% CI 0.80-1.52). When bias from confounding was estimated for nonadjusted studies, the aggregate calculated risk ratio was 0.83 (95% CI 0.68-0.98). CONCLUSION: Leiomyoma presence was not associated with increased risk of spontaneous abortion in an analysis of more than 20,000 pregnant women. Failure of prior studies to adjust for confounders may have led to the common clinical belief that leiomyomas are a risk factor for spontaneous abortion. PMID- 29016497 TI - Discontinuing Oxytocin Infusion in the Active Phase of Labor: A Systematic Review and Meta-analysis. AB - OBJECTIVE: To evaluate the benefits and harms of discontinuation of oxytocin after the active phase of labor is reached. DATA SOURCES: Electronic databases (ie, MEDLINE, Scopus, ClinicalTrials.gov, EMBASE, ScienceDirect, the Cochrane Library at the CENTRAL Register of Controlled Trials, Scielo) were searched from their inception until April 2017. METHODS OF STUDY SELECTION: We included all randomized controlled trials comparing discontinuation (ie, intervention group) and continuation (ie, control group) of oxytocin infusion after the active phase of labor is reached, either after induction or augmentation of labor. Discontinuation of oxytocin infusion was defined as discontinuing oxytocin infusion when the active phase of labor was achieved. Continuation of oxytocin infusion was defined as continuing oxytocin infusion until delivery. Only trials in singleton gestations with vertex presentation at term were included. The primary outcome was the incidence of cesarean delivery. TABULATION, INTEGRATION, AND RESULTS: Nine randomized controlled trials, including 1,538 singleton gestations, were identified as relevant and included in the meta-analysis. All nine trials included only women undergoing induction of labor. In the discontinuation group, if arrest of labor occurred, usually defined as no cervical dilation in 2 hours or inadequate uterine contractions for 2 hours or more, oxytocin infusion was restarted. Women in the control group had oxytocin continued until delivery usually at the same dose used at the time the active phase was reached. Women who were randomized to have discontinuation of oxytocin infusion after the active phase of labor was reached had a significantly lower risk of cesarean delivery (9.3% compared with 14.7%; relative risk 0.64, 95% CI 0.48-0.87) and of uterine tachysystole (6.2% compared with 13.1%; relative risk 0.53, 95% CI 0.33-0.84) compared with those who were randomized to have continuation of oxytocin infusion until delivery. Discontinuation of oxytocin infusion was associated with an increase in the duration of the active phase of labor (mean difference 27.65 minutes, 95% CI 3.94-51.36). CONCLUSION: In singleton gestations with cephalic presentation at term undergoing induction, discontinuation of oxytocin infusion after the active phase of labor at approximately 5 cm is reached reduces the risk of cesarean delivery and of uterine tachysystole compared with continuous oxytocin infusion. Given this evidence, discontinuation of oxytocin infusion once the active stage of labor is established in women being induced should be considered as an alternative management plan. PMID- 29016498 TI - Clinical Factors Associated With Presentation Change of the Second Twin After Vaginal Delivery of the First Twin. AB - OBJECTIVE: To identify clinical factors associated with a change from vertex to nonvertex presentation in the second twin after vaginal birth of the first. METHODS: We assembled a retrospective cohort of women with viable vertex-vertex twin pregnancies who delivered the presenting twin vaginally. Women whose second twin changed from vertex to nonvertex after vaginal birth of the first were classified as experiencing an intrapartum change in presentation. Characteristics associated with intrapartum presentation change in a univariate analysis with a P value <=.10 were then evaluated in a multivariate logistic regression model. RESULTS: Four-hundred fifty women met inclusion criteria, of whom 55 (12%) had intrapartum presentation change of the second twin. Women experiencing intrapartum presentation change were more likely to be multiparous (69% compared with 47%, P<.01) and to have had a change in the presentation of the second twin between the most recent antepartum ultrasonogram and the ultrasonogram done on admission to labor and delivery (11% compared with 4%, P=.04). In an adjusted analysis, multiparity and gestational age less than 34 weeks were significantly associated with presentation change (adjusted odds ratio [OR] 2.9, 95% CI 1.5-5.6 and adjusted OR 2.6, 95% CI 1.1-5.9, respectively). Women with intrapartum presentation change were more likely to undergo cesarean delivery for their second twin (44% compared with 7%, P<.01) with an adjusted OR of 10.50 (95% CI 5.20-21.20) compared with those with stable intrapartum presentation. Twenty of the 24 (83%) cesarean deliveries performed in the intrapartum presentation change group were done for issues related to malpresentation. CONCLUSION: Multiparity and gestational age less than 34 weeks are associated with intrapartum presentation change of the second twin. PMID- 29016499 TI - Epidural Analgesia During the Second Stage of Labor: A Randomized Controlled Trial. AB - OBJECTIVE: To evaluate whether maintaining a motor-sparing epidural analgesia infusion affects the duration of the second stage of labor in nulliparous parturients compared with a placebo control. METHODS: We conducted a double blind, randomized, placebo-controlled trial involving nulliparous women with term cephalic singleton pregnancies who requested epidural analgesia. All women received epidural analgesia for the first stage of labor using 0.08% ropivacaine with 0.4 micrograms/mL sufentanil with patient-controlled epidural analgesia. At the onset of the second stage of labor, women were randomized to receive a blinded infusion of the same solution or placebo saline infusion. The primary outcome was the duration of the second stage of labor. A sample size of 200 per group (400 total) was planned to identify at least a 15% difference in duration. RESULTS: Between March 2015 and September 2015, 560 patients were screened and 400 patients (200 in each group) completed the study. Using an intention-to-treat analysis, the duration of the second stage was similar between groups (epidural 52+/-27 minutes compared with saline 51+/-25 minutes, P=.52). The spontaneous vaginal delivery rate was also similar (epidural 193 [96.5%] compared with saline 198 [99%], P=.17). Pain scores were similar between groups at each measurement during the second stage. More women who received placebo reported satisfaction scores of 8 or less (epidural 32 [16%] compared with saline 61 [30.5%], P=.001). CONCLUSION: Maintaining the infusion of epidural medication had no effect on the duration of the second stage of labor compared with a placebo infusion. Maternal and neonatal outcomes were similar. A low concentration of epidural local anesthetic does not affect the duration of the second stage of labor. CLINICAL TRIAL REGISTRATION: Chinese Clinical Trial Register, http://www.chictr.org.cn/enindex.aspx, ChiCTR-IOR-15005875. PMID- 29016500 TI - Nonreassuring Status: Improving Obstetrician-Gynecologist Wellness. AB - Physician wellness directly affects patient and physician health and has broader implications for our health systems. A summary of what is known about physician wellness in medicine, and obstetrics and gynecology in particular, identifies several areas for future focus. To change our culture and the structure of our academic health centers in a way that promotes resilience, we suggest greater attention to preparedness for practice and attention to work-life integration as well as mentoring and professional development. PMID- 29016501 TI - What Is New in Cesarean Delivery?: Best Articles From the Past Year. AB - This month we focus on current research in cesarean delivery. Dr. Rouse discusses six recent publications, which are concluded with a "bottom line" that is a take home message. A complete reference for each can be found on on this page along with direct links to abstracts. PMID- 29016502 TI - Connect the Dots-November 2017. PMID- 29016503 TI - Immigration, Pregnancy, and Heath Insurance: New Evidence and Ongoing Debate. PMID- 29016504 TI - Accuracy of Four Imaging Techniques for Diagnosis of Posterior Pelvic Floor Disorders. AB - OBJECTIVE: To establish the diagnostic test accuracy of evacuation proctography, magnetic resonance imaging (MRI), transperineal ultrasonography, and endovaginal ultrasonography for detecting posterior pelvic floor disorders (rectocele, enterocele, intussusception, and anismus) in women with obstructed defecation syndrome and secondarily to identify the most patient-friendly imaging technique. METHODS: In this prospective cohort study, 131 women with symptoms of obstructed defecation syndrome underwent evacuation proctogram, MRI, and transperineal and endovaginal ultrasonography. Images were analyzed by two blinded observers. In the absence of a reference standard, latent class analysis was used to assess diagnostic test accuracy of multiple tests with area under the curve (AUC) as the primary outcome measure. Secondary outcome measures were interobserver agreement calculated as Cohen's kappa and patient acceptability using a visual analog scale. RESULTS: No significant differences in diagnostic accuracy were found among the imaging techniques for all the target conditions. Estimates of diagnostic test accuracy were highest for rectocele using MRI (AUC 0.79) or transperineal ultrasonography (AUC 0.85), for enterocele using transperineal (AUC 0.73) or endovaginal ultrasonography (AUC 0.87), for intussusception using evacuation proctography (AUC 0.76) or endovaginal ultrasonography (AUC 0.77), and for anismus using endovaginal (AUC 0.95) or transperineal ultrasonography (AUC 0.78). Interobserver agreement for the diagnosis of rectocele (kappa 0.53-0.72), enterocele (kappa 0.54-0.94) and anismus (kappa 0.43-0.81) was moderate to excellent, but poor to fair for intussusception (kappa -0.03 to 0.37) with all techniques. Patient acceptability was better for transperineal and endovaginal ultrasonography as compared with MRI and evacuation proctography (P<.001). CONCLUSION: Evacuation proctography, MRI, and transperineal and endovaginal ultrasonography were shown to have similar diagnostic test accuracy. Evacuation proctography is not the best available imaging technique. There is no one optimal test for the diagnosis of all posterior pelvic floor disorders. Because transperineal and endovaginal ultrasonography have good test accuracy and patient acceptability, we suggest these could be used for initial assessment of obstructed defecation syndrome. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, NCT02239302. PMID- 29016505 TI - Implementing a Systematic Approach to Reduce Cesarean Birth Rates in Nulliparous Women. AB - OBJECTIVE: To implement a systematic approach to safely reduce nulliparous cesarean birth rates. METHODS: This is a quality improvement project at two rural community hospitals and one urban community hospital in North Carolina. These facilities implemented a systematic approach to reduce nulliparous cesarean birth rates, aligning with recommendations developed by the Council on Patient Safety in Women's Health Care: Patient Safety Bundle on the Safe Reduction of Primary Cesarean Births. Health care providers and nurses received education on contemporary labor management guidelines developed by the American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine Obstetric Care Consensus regarding safe prevention of primary cesarean deliveries and nurses were instructed on labor support techniques. The preguideline implementation period was January 1, 2015, to June 30, 2015. The postguideline implementation period was July 1, 2016, to December 31, 2016. The primary outcome measured was the nulliparous, term, singleton, vertex cesarean birth rate. Secondary outcomes included maternal and neonatal outcomes. Standard statistical analysis was used and a P value of <.05 was considered significant. RESULTS: There were 434 women identified in the preguideline period and 401 women in the postguideline period. The nulliparous, term, singleton, vertex cesarean birth rate decreased from 27.9% to 19.7% [odds ratio (OR) 0.63, CI 0.46-0.88]. There were improvements in health care provider compliance with following the labor management guidelines from 86.2% to 91.5% (OR 1.73, 95% CI 1.11-2.70), the use of maternal position changes from 78.7% to 87.5% (OR 1.86, 95% CI 1.29-2.68), and use of the peanut birthing ball from 16.8% to 45.2% (OR 3.83, 95% CI 2.84-5.16) as provisions for labor support. DISCUSSION: Implementing a systematic approach for care of nulliparous women is associated with a decrease in term, singleton, vertex cesarean birth rates. PMID- 29016507 TI - Cadaveric Nerve and Artery Proximity to Sacrospinous Ligament Fixation Sutures Placed by a Suture-Capturing Device. AB - OBJECTIVE: To simulate sacrospinous ligament fixation on cadaveric specimens, describe the surrounding retroperitoneal anatomy, and estimate the risk to nerves and arteries for the purposes of optimizing safe suture placement. METHODS: Sacrospinous ligament fixation was performed on eight fresh-tissue female cadavers using a Capio ligature capture device. Distances from placed sutures to the following structures were measured: ischial spine; fourth sacral root; pudendal nerve; the nerve to coccygeus muscle; the nerve to levator ani muscle; inferior gluteal artery; and internal pudendal artery. Periligamentous anatomy was examined in an additional 17 embalmed cadaver dissections. RESULTS: Sacrospinous ligament length was not seen to differ significantly between sides. The fourth sacral spinal nerve was seen most commonly associated with the medial third of the ligament, whereas the pudendal nerve and the nerves to coccygeus and levator ani muscles were associated with the lateral third. The inferior gluteal artery was seen leaving the greater sciatic foramen a median 15.8 mm (range 1.8 48.0, CI 14.9-22.3) above the ligament, whereas the internal pudendal artery exited just above the ischial spine. The two sets of sutures were placed 20.5 mm (range 9.2-34.4, CI 19.7-24.7) and 24.8 mm (range 12.4-46.2, CI 24.0-30.0) medial to the ischial spine, respectively. No structures were directly damaged by placed sutures. The nerves to coccygeus and levator ani were closest and arteries farthest from the placed sutures. CONCLUSION: The middle segment of the sacrospinous ligament has the lowest incidence of nerves and arteries associated with it. This study confirms that the nerves supplying the pelvic floor muscles are at a higher risk from entrapment than the pudendal nerve. PMID- 29016506 TI - Contraception and Conception After Bariatric Surgery. AB - OBJECTIVE: To examine contraceptive practices and conception rates after bariatric surgery. METHODS: The Longitudinal Assessment of Bariatric Surgery-2 is a multicenter, prospective cohort study of adults undergoing first-time bariatric surgery as part of routine clinical care at 10 U.S. hospitals. Recruitment occurred between 2005 and 2009. Participants completed preoperative and annual postsurgical assessments for up to 7 years until January 2015. This report was restricted to women 18-44 years old with no history of menopause, hysterectomy, or estrogen and progesterone therapy. Primary outcomes were self-reported contraceptive practices, overall conception rate, and early (less than 18 months) postsurgical conception. Contraceptive practice (no intercourse, protected intercourse, unprotected intercourse, or tried to conceive) was classified based on the preceding year. Conception rates were determined from self-reported pregnancies. RESULTS: Of 740 eligible women, 710 (95.9%) completed follow-up assessment(s). Median (interquartile range) preoperative age was 34 (30-39) years. In the first postsurgical year, 12.7% (95% CI 9.4-16.0) of women had no intercourse, 40.5% (95% CI 35.6-45.4) had protected intercourse only, 41.5% (95% CI 36.4-46.6) had unprotected intercourse while not trying to conceive, and 4.3% (95% CI 2.4-6.3) tried to conceive. The prevalence of the first three groups did not significantly differ across the 7 years of follow-up (P for all >.05); however, more women tried to conceive in the second year (13.1%, 95% CI 9.3-17.0; P<.001). The conception rate was 53.8 (95% CI 40.0-71.1) per 1,000 woman-years across follow-up (median [interquartile range] 6.5 [5.9-7.0] years); 42.3 (95% CI 30.2-57.6) per 1,000 woman-years in the 18 months after surgery. Age (adjusted relative risk 0.41 [95% CI 0.19-0.89] per 10 years, P=.03), being married or living as married (adjusted relative risk 4.76 [95% CI 2.02-11.21], P<.001), and rating future pregnancy as important preoperatively (adjusted relative risk 8.50 [95% CI 2.92-24.75], P<.001) were associated with early conception. CONCLUSIONS: Postsurgical contraceptive use and conception rates do not reflect recommendations for an 18-month delay in conception after bariatric surgery. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, NCT00465829. PMID- 29016508 TI - Prophylactic Negative Pressure Wound Therapy for Obese Women After Cesarean Delivery: A Systematic Review and Meta-analysis. AB - OBJECTIVE: To summarize available studies on wound complication outcomes after prophylactic negative pressure wound therapy for obese women (body mass index 30 or greater). DATA SOURCES: We conducted a systematic review and meta-analysis using electronic database search (PubMed, Cumulative Index to Nursing and Allied Health Literature, EMBASE, Google scholar, and Web of Science), Cochrane, and trial registries including ClinicalTrials.gov. METHODS OF STUDY SELECTION: We conducted an electronic search of research articles from 1966 to January 2017 for randomized controlled trials (RCTs), prospective cohort, and retrospective cohort studies of negative pressure wound therapy compared with standard dressing after cesarean delivery among obese women. Our primary outcome was defined as a composite of wound complication, including wound or surgical site infection, cellulitis, seroma, hematoma, wound disruption, or dehiscence. For cohort studies and RCTs, we performed a descriptive systematic review. For available RCTs, we performed a meta-analysis and pooled risk ratios using a random-effects model. We assessed for heterogeneity using chi test for heterogeneity and I test. We assessed for publication bias using a funnel plot. TABULATION, INTEGRATION, AND RESULTS: Of 10 studies meeting eligibility criteria, five were RCTs and five were cohort studies. Results of cohort studies were varied; however, all had a high potential for selection bias. In the meta-analysis, there was no difference in primary composite outcome among those women with negative pressure wound therapy (16.8%) compared with those who had standard dressing (17.8%) (risk ratio 0.97, 95% CI 0.63-1.49). There was no statistically significant heterogeneity (chi test 4.80, P=.31, I=17%). CONCLUSION: Currently available evidence does not support negative pressure wound therapy use among obese women for cesarean wound complication prevention. SYSTEMATIC REVIEW REGISTRATION: PROSPERO: International prospective register of systematic reviews, 42016033948. PMID- 29016509 TI - Maternal Vascular Malperfusion and Adverse Perinatal Outcomes in Low-Risk Nulliparous Women. AB - OBJECTIVE: To evaluate the disease burden of placental maternal vascular malperfusion pathology in a low-risk nulliparous population and test the hypothesis that a multiparameter model in the second trimester can predict maternal vascular malperfusion with high precision. METHODS: A single-center, prospective cohort study was conducted in healthy nulliparous women. Maternal vascular malperfusion disease burden was estimated by incidence, relative risk (RR), and population-attributable risk percent. Maternal risk factors, serum biomarkers, Doppler, and placental morphologic ultrasonography were examined in isolation and in combination for prediction of this placental pathology. RESULTS: The incidence of maternal vascular malperfusion pathology was 8.4% (72/856). Women with pathology had higher risk of preeclampsia (8.33% compared with 1.79%; RR 4.67, 95% CI 1.85-11.77%; population-attributable risk 23.6%, 95% CI 16.9 31.6%), small for gestational age (SGA) (47.22% compared with 9.45%; RR 5.00, 95% CI 3.6-6.93%; population-attributable risk 25.2%, 95% CI 22.1-28.5%), and the composite of adverse outcomes (defined as SGA or preeclampsia) (47.22% compared with 10.59%; RR 4.46, 95% CI 3.25-6.13; population-attributable risk 22.5%, 95% CI 19.8-25.5%). The combination of parameters was superior to individual modalities alone in predicting maternal vascular malperfusion, but achieved only moderate precision (area under the curve 0.77, 95% CI 0.71-0.84). CONCLUSION: One in 12 healthy nulliparous women develop maternal vascular malperfusion placental pathology, and these pregnancies had a 4.5 times higher risk of developing preeclampsia or delivering a SGA neonate compared with those without this pathology. A multiparameter model achieved modest precision to predict placental maternal vascular malperfusion. Importantly, in low-risk pregnancies, maternal vascular malperfusion accounts for one fourth of pregnancy outcomes with SGA or preeclampsia. The low population-attributable risk of this placental pathology for SGA and preeclampsia illustrates the importance of discovering novel associations to reduce the disease burden of these pregnancy complications. PMID- 29016511 TI - Change in Surgical Practice for Women With Leiomyomas After the U.S. Food and Drug Administration Morcellator Safety Communication. AB - OBJECTIVE: To evaluate the association between the U.S. Food and Drug Administration (FDA) communication discouraging use of power morcellators on changes in surgical practice for women with uterine leiomyomas. METHODS: This is a cross-sectional study using data from 2013 to 2014 in the Healthcare Cost and Utilization Project State Inpatient and State Ambulatory Surgical Databases from Arizona, Florida, Kentucky, and New Jersey. Women with a diagnosis of leiomyomas who underwent hysterectomy or myomectomy were included in the analysis. Multivariable models were used to assess changes in the proportion of hysterectomies performed laparoscopically, vaginally, or by laparotomy in the 15 months before the FDA safety communication in April 2013 (January 2013 to March 2014) to the 9 months after the FDA communication (April to December 2014). Changes in the proportion of women who underwent myomectomy compared with hysterectomy were also evaluated during this time period. RESULTS: There were 77,637 hysterectomy and myomectomy cases analyzed from states with both inpatient and ambulatory surgery data; 59% of patients were outpatients. Overall, there was a 4% (95% CI 3.2-4.8%) decrease in the use of laparoscopic hysterectomy for treatment of uterine leiomyomas from 62% of all hysterectomies before the FDA communication on morcellation to 58% afterward. Changes in surgical practice were more pronounced in the inpatient compared with outpatient setting; inpatient laparoscopic hysterectomy decreased by 7% (95% CI 6.1-7.9%) from 24% to 17% of all hysterectomies with an accompanying increase in abdominal hysterectomy of 8% (95% CI 6.7-8.6%) from 71% to 79%. There were no significant changes in the proportion of women with leiomyomas who underwent myomectomy compared with hysterectomy. CONCLUSION: The FDA communication discouraging the use of power morcellators was associated with a decline in laparoscopy to perform hysterectomy, particularly in the inpatient setting. There was no change in the selection of myomectomy compared with hysterectomy for leiomyoma treatment after the FDA communication. PMID- 29016510 TI - Comparative Effectiveness of Uterine Leiomyoma Procedures Using a Large Insurance Claims Database. AB - OBJECTIVE: To compare risk of reintervention, long-term clinical outcomes, and health care utilization among women who have bulk symptoms from leiomyoma and who underwent the following procedures: hysterectomy, myomectomy, uterine artery embolization, and magnetic resonance-guided, focused ultrasound surgery. METHODS: This was a retrospective analysis of administrative claims from a large U.S. commercial insurance database. Women aged 18-54 years undergoing any of the previously mentioned leiomyoma procedures between 2000 and 2013 were included. We assessed the following outcome measures: risk of reintervention between uterine sparing procedures, risk of other surgical procedures or complications of the index procedure, 5-year health care utilization, pregnancy rates, and reproductive outcomes. Propensity score matching along with Cox proportional hazard models were used to adjust for differences in baseline characteristics between study cohorts. RESULTS: Among the 135,522 study-eligible women with mean follow-up of 3.4 years, hysterectomy was the most common first-line procedural therapy (111,324 [82.2%]) followed by myomectomy (19,965 [14.7%]), uterine artery embolization (4,186 [3.1%]) and magnetic resonance-guided focused ultrasound surgery (47 [0.0003%]). Small but statistically significant differences were noted for uterine artery embolization and myomectomy in reintervention rate (17.1% compared with 15.0%, P=.02), subsequent hysterectomy rates (13.2% compared with 11.1%, P<.01) and subsequent complications from index procedures (18.1% compared with 24.6%, P<.001). During follow-up, women undergoing myomectomy had lower leiomyoma-related health care utilization, but had higher all-cause outpatient services. Pregnancy rates were 7.5% and 2.2% among myomectomy and uterine artery embolization cohorts, respectively (P<.001) with both cohorts having similar rates of adverse reproductive outcome (69.4%). CONCLUSIONS: Although the overwhelming majority of women having leiomyoma with bulk symptoms underwent hysterectomy as their first treatment procedure, among those undergoing uterine-sparing index procedures, approximately one seventh had a reintervention, and one tenth ended up undergoing hysterectomy during follow-up. Compared with women undergoing myomectomy, women undergoing uterine artery embolization had a higher risk of reintervention, lower risk of subsequent complications, but similar rate of adverse reproductive outcomes. PMID- 29016512 TI - Trial of Labor Compared With Cesarean Delivery in Superobese Women. AB - OBJECTIVE: To examine whether labor compared with planned cesarean delivery is associated with increased maternal and neonatal morbidity. METHODS: We conducted a retrospective cohort study of all women with body mass indexes (BMIs) at delivery of 50 or greater delivering a live fetus at 34 weeks of gestation of greater between January 1, 2008, and December 31, 2015. Pregnancies with multiple gestations and major fetal anomalies were excluded. The primary outcome was a composite of maternal and neonatal morbidity and was estimated to be 50% in superobese women based on institutional data. A sample size of 338 women determined the study period and was selected to show a 30% difference in the incidence of the primary outcome between the two groups. Multivariate logistic regression adjusted for potential confounders. RESULTS: There were 344 women with BMIs of 50 or greater who met eligibility criteria, of whom 201 (58%) labored and 143 (42%) underwent planned cesarean delivery. Women who labored were younger, more likely to be nulliparous, and less likely to have pre-existing diabetes. Among women who labored, 45% underwent a cesarean delivery, most commonly for labor arrest (61%) or nonreassuring fetal status (28%). Composite maternal and neonatal morbidity was reduced among women who labored even after adjusting for age, parity, pre-existing diabetes, and prior cesarean delivery (adjusted odds ratio 0.42, 95% CI 0.24-0.75). In the subgroup of women (n=234) who underwent a cesarean delivery, whether planned (n=143) or after labor (n=91), there were no differences in maternal and neonatal morbidity except that severe maternal morbidity was increased in women (n=12) who labored (8.8% compared with 2.1%, relative risk 4.2, 95% CI 1.14-15.4). CONCLUSION: Despite high rates of cesarean delivery in women with superobesity, labor is associated with lower composite maternal and neonatal morbidity. Severe maternal morbidity may be higher in women who require a cesarean delivery after labor. PMID- 29016513 TI - Emergency Department Care in the Postpartum Period: California Births, 2009-2011. AB - OBJECTIVE: To use population data to identify patient characteristics associated with a postpartum maternal emergency department visit within 90 days of discharge after birth. METHODS: This retrospective cross-sectional study analyzed linked maternal discharge and emergency department data for all live California births from 2009 to 2011. The primary outcome was at least one emergency department visit within 90 days of hospital discharge after birth. Secondary outcomes included three or more visits within 90 days ("high utilization") and inpatient readmission. Independent variables included demographics (age, race or ethnicity, payer, income) and clinical characteristics (length of stay, antepartum complications, mode of delivery, and severe maternal morbidity at delivery). Multilevel logistic regression identified variables associated study outcomes; we validated the predictive model with a split-sample approach and receiver operating characteristic curve analysis. RESULTS: Of 1,071,232 deliveries included, 88,674 women (8.3%) visited the emergency department at least once in the 90 days after delivery discharge. Emergency department use was significantly associated with Medicaid insurance (adjusted odds ratio [OR] 2.15, 95% CI 2.08 2.21), age younger than 20 years (adjusted OR 2.08, 95% CI 1.98-2.19), severe maternal morbidity at delivery (adjusted OR 1.58, 95% CI 1.49-1.71), antepartum complications (adjusted OR 1.46, 95% CI 1.42-1.50), and cesarean delivery (adjusted OR 1.40, 95% CI 1.37-1.44). Approximately one fifth of visits occurred within 4 days of discharge, and more than half were within 3 weeks. High utilizers comprised 0.5% of the entire sample (5,171 women) and only 1.2% of women presenting for emergency department care were readmitted. Receiver operating curve model analysis using the validation sample supported predictive accuracy for postpartum emergency department use (area under the curve=0.95). CONCLUSION: One in 12 California women visited the emergency department in the first 90 days after postpartum discharge. Women at increased risk for postpartum emergency department use per our validated model (eg, low income, birth complications) may benefit from earlier scheduled postpartum visits. PMID- 29016514 TI - Disparities in Care for Publicly Insured Women With Pregestational Diabetes. AB - OBJECTIVE: To investigate the association among public health insurance, preconception care, and pregnancy outcomes in pregnant women with pregestational diabetes. METHODS: This is a retrospective cohort of pregnant women with pregestational type 1 or type 2 diabetes from 2006 to 2011 in Massachusetts-a state with universal insurance coverage since 2006. Women delivering after 24 weeks of gestation and receiving endocrinology and obstetric care in a multidisciplinary clinic were included. Rates of preconception consultation, our primary outcome of interest, were then compared between publicly and privately insured women. We used univariate analysis followed by logistic regression to compare receipt of preconception consultation and other secondary diabetes care measures and pregnancy outcomes according to insurance status. RESULTS: Fifty four percent (n=106) of 197 women had public insurance. Publicly insured women were younger (median age 30.4 compared with 35.3 years, P<.01) with lower rates of college education (12.3% compared with 45.1%, P<.01). Women with public insurance were less likely to receive a preconception consult (5.7% compared with 31.9%, P<.01), had lower rates of hemoglobin A1C less than 6% at the onset of pregnancy (37.2% compared with 58.4%, P=.01), and experienced higher rates of pregnancies affected by congenital anomalies (10.4% compared with 2.2%, P=.02) compared with those with private insurance. In adjusted analyses controlling for educational attainment, maternal age, and body mass index, women with public insurance were less likely to receive a preconception consult (adjusted odds ratio [OR] 0.21, 95% CI 0.08-0.58), although the odds of achieving the target hemoglobin A1C (adjusted OR 0.45, 95% CI 0.20-1.02) and congenital anomaly (adjusted OR 2.23, 95% CI 0.37-13.41) were similar after adjustment. CONCLUSION: Despite continuous access to health insurance, publicly insured women were less likely than privately insured women to receive a preconception consult-an evidence-based intervention known to improve pregnancy outcomes. Improving use of preconception care among publicly insured women with diabetes is critical to reducing disparities in outcomes. PMID- 29016517 TI - Pediatric Poisonings in a Rural Ugandan Emergency Department. AB - OBJECTIVE: This study aims to describe pediatric poisonings presenting to a rural Ugandan emergency department (ED), identifying demographic factors and causative agents. METHODS: This retrospective study was conducted in the ED of a rural hospital in the Rukungiri District of Uganda. A prospectively collected quality assurance database of ED visits was queried for poisonings in patients under the age of 5 who were admitted to the hospital. Cases were included if the chief complaint or final diagnosis included anything referable to poisoning, ingestion, or intoxication, or if a toxicologic antidote was administered. The database was coded by a blinded investigator, and descriptive statistics were performed. RESULTS: From November 9, 2009, to July 11, 2014, 3428 patients under the age of 5 were admitted to the hospital. A total of 123 cases (3.6%) met the inclusion criteria. Seventy-two patients were male (58.5%). The average age was 2.3 (SD, 0.97) years with 45 children (36.6%) under the age of 2 years. There were 19 cases (15.4%) lost to 3-day follow-up. The top 3 documented exposures responsible for pediatric poisonings were cow tick or organophosphates (36 cases, 29.2%), general poison or drug overdose (26 cases, 21.1%), and paraffin or hydrocarbon (24 cases, 19.5%).Of the admitted patients, 1 died in the ED and 2 died at 72 hour follow-up, for an overall 72-hour mortality of 2.4%. Patients who died were exposed to iron, cow tick, and rat poison. CONCLUSIONS: Pediatric poisoning affects patients in rural sub-Saharan Africa. The mortality rate at one rural Ugandan hospital was greater than 2%. PMID- 29016515 TI - Performance Measures for Contraceptive Care: A New Tool to Enhance Access to Contraception. AB - Contraception is an essential health service for reducing unintended pregnancy rates, improving health outcomes, and reducing health care costs. However, contraceptive services may not consistently provide access to the full method mix and to patient-centered care. Improving the quality of contraceptive care is a critical strategy to improve contraceptive use, health outcomes, and the patient experience of care. We here describe the three National Quality Forum-endorsed performance measures for contraceptive care, which are intended to monitor 1) provision of most and moderately effective methods, 2) access to long-acting reversible contraception, and 3) provision of most and moderately effective methods and access to long-acting reversible contraception after childbirth. These contraceptive care measures are designed to ensure that contraceptive care is accessible and offers the full spectrum of methods. Payers, health care systems, public agencies, and researchers could all monitor these performance measures for different populations. We describe the crucial role of clinicians in disseminating and using the contraceptive care performance measures for quality improvement. We describe ongoing efforts to improve contraceptive care quality, including the development of measures to monitor other dimensions of quality such as the safety and patient-centeredness of care. Thirty-eight million women at risk of unintended pregnancy are counting on us to improve the quality of family planning care in the United States and ensure that all women have the resources and tools to make free, informed choices about whether and when to become pregnant. PMID- 29016516 TI - Barriers to Effective Teamwork Relating to Pediatric Resuscitations: Perceptions of Pediatric Emergency Medicine Staff. AB - BACKGROUND: In the pediatric emergency department (PED), resuscitations require medical teams form ad hoc, rarely communicating beforehand. Literature has shown that the medical community has deficiencies in communication and teamwork. However, we as medical providers do not know or understand the perceived barriers of our colleagues. Physicians may perceive a barrier that is different from nurses, respiratory therapists, pharmacists, or technicians. Perhaps we do not know in which area of teamwork and communication we are deficient. Only when we understand the perceptions of our fellow coworkers can we take steps toward improvement in quality resuscitations and therefore patient safety. OBJECTIVE: The primary objectives of this study were to describe and understand the perceived barriers to effective communication and teamwork among different disciplines forming spontaneous resuscitation teams at a tertiary urban PED and to determine if providers of different disciplines perceived these barriers differently. METHODS: This was a mixed-methods study conducted in a single, tertiary care freestanding children's hospital emergency department. Survey questions were iteratively developed to measure the construct of barriers and best practices within resuscitation teamwork, which was administered to staff among 5 selected roles: physicians, nurses, respiratory technicians, PED technicians, and PED pharmacists. It contained open-ended questions to provide statements on specific barriers or goals in effective teamwork, as well as a priority ranking on 25 different statements on teamwork extracted from the literature. From the participant data, 9 core themes related to resuscitation teamwork were coalesced using affinity diagramming by the authors. All statements from the survey were coded to the 9 core themes by 2 authors, with high reliability (kappa = 0.93). Descriptive statistics were used to summarize the prevalence of themes mentioned by survey participants. A chi test was used to determine differences in prevalence of core themes by role. Rank data for the 25 statements were converted to a point system (5 points for most important, 4 points for second most important, etc), and a mixed within-between analysis of variance was used to determine the association of role and relative rank. RESULTS: There were 125 respondents (62% response rate) who provided 893 coded statements. The core theme of communication-in particular, closed-loop communication-was the most prevalent theme, although no differences in the proportion of themes represented were seen by PED staff of different roles (P = 0.18). There was a significant effect from the core theme (P = 0.002, partial eta = 0.13), with highest priority on team leader performance (mean points out of 5 = 2.5 +/- 1.9), but neither effect nor interaction with role (P = 0.6, P = 0.7). CONCLUSIONS: When answering open-ended questions regarding barriers to effective resuscitations, all disciplines perceived communication, particularly closed-loop communication, as the primary theme lacking during resuscitations. However, when choosing from a list of themes, all groups except physicians perceived deficiencies in team leader qualities to be the greatest barrier. We as physicians must work on improving our communication and leadership attributes if we want to improve the quality of our resuscitations. PMID- 29016518 TI - Gastric Drainage in the Treatment of Near-Fatal Food-Induced Anaphylaxis. AB - Anaphylaxis should be treated with early administration of intramuscular Adrenalin; however, fatalities may still occur even with this therapy. We report a patient with near-fatal anaphylaxis due to milk whose symptoms persisted and were resistant to any therapeutic attempt; however, the patient had a prompt resolution of the anaphylaxis shortly after a nasogastric tube placement with gastric drainage, suggesting that this procedure ended the ongoing absorption of additional allergen from the gastrointestinal tract. We suggest that nasogastric drainage of gastric contents should be considered as part of the therapy in severe food-induced anaphylaxis. PMID- 29016519 TI - Clinical Decision Rule to Identify Orbital Wall Fracture Among Children: Retrospective Derivation and Validation Study. AB - OBJECTIVES: Head and face injuries are leading causes of emergency department visits in children. There is yet no clinical decision rule on face CT such as pediatric head CT rules. The goal was to develop and validate a clinical decision rule for identifying orbital wall fractures in children with periorbital trauma in the emergency department. METHODS: This was a retrospective derivation and validation study. Children younger than 18 years who underwent orbit CT after periorbital trauma were included between January 2011 and December 2013 in 3 emergency centers. Among 16 candidate clinical variables, 13 clinical signs and symptoms were selected as clinical predictors. For the fracture model, these clinical predictors were analyzed by 3-fold cross-validation. Diagnostic performance was assessed using the area under the receiver operating characteristic (AUROC) curve in both cohorts. RESULTS: Four variables (orbital rim tenderness, periorbital ecchymosis, painful extraocular movement, and nausea/vomiting) had the best predictive model with the highest AUROC value. The AUROC values for fracture prediction were 0.793 (95% confidence interval, 0.741 0.844) and 0.809 (95% confidence interval, 0.742-0.877) in the derivation cohort and validation cohort, respectively. The sensitivity and negative predictive values were 96.4% and 93.4%, respectively, in the derivation cohort, and 97.8% and 98.1%, respectively, in the validation cohort. The sum of these scores ranged from 0 to 4. Patients with a sum of scores of 1 or higher showed significantly increased risk for fracture. CONCLUSIONS: The 4-variable predictive model can be useful for finding clinically important orbital wall fractures in children. PMID- 29016520 TI - Episcleral Venous Outflow: A Potential Outcome Marker for iStent Surgery. AB - PURPOSE: (1) To propose the use of episcleral venous outflow (EVO) as an outcome marker of iStent surgery, and an EVO grading scale. (2) To determine the association of EVO with: (a) postoperative intraocular pressure (IOP) and medication burden; (b) iStent patency status. PATIENTS AND METHODS: Retrospective cohort study including 151 glaucomatous eyes having undergone iStent phacoemulsification surgery. Demographic and preoperative data (IOP, number of antiglaucoma medications, glaucoma type and stage, maximal IOP) were collected. Postoperatively, were recorded: IOP, number of antiglaucoma medications, occurrence of stent malpositioning or obstruction, and EVO scores based on the proposed scale (0: no laminar flow; 1+: faint laminar flow; 2+: marked laminar flow). A Kruskal-Wallis test determined the association between EVO, postoperative IOP, and medication burden. A multivariable-adjusted ordinal logistic regression was used for the association with iStent patency status. RESULTS: Patients with marked laminar flow (2+) were more likely to have a lower IOP (P=0.022) and fewer medications (P=0.009) at 1-year postoperatively than those with no laminar flow (0). No difference was found in postoperative IOP and number of medications when comparing patients having faint laminar flow (1+) with patients from the other 2 EVO categories (0 and 2+). iStent patency was associated with greater EVO as opposed to its obstruction (odds ratio, 4.73; 95% confidence interval, 1.74-12.9). No malpositioned stents were noted in our cohort. CONCLUSIONS: The use of EVO as an outcome marker of iStent surgery is physiologically plausible. The proposed EVO grading scale is simple, comprises few categories, and is easily applicable in an in-office setting. The results of this study suggest this scale could be useful in the assessment of iStent functionality and encourage its further investigation in prospective studies. PMID- 29016521 TI - Glaucoma Diagnostic Capabilities of Foveal Avascular Zone Parameters Using Optical Coherence Tomography Angiography According to Visual Field Defect Location. AB - PURPOSE: To assess the diagnostic ability of foveal avascular zone (FAZ) parameters to discriminate glaucomatous eyes with visual field defects (VFDs) in different locations (central vs. peripheral) from normal eyes. PATIENTS AND METHODS: Totally, 125 participants were separated into 3 groups: normal (n=45), glaucoma with peripheral VFD (PVFD, n=45), and glaucoma with central VFD (CVFD, n=35). The FAZ area, perimeter, and circularity and parafoveal vessel density were calculated from optical coherence tomography angiography images. The diagnostic ability of the FAZ parameters and other structural parameters was determined according to glaucomatous VFD location. Associations between the FAZ parameters and central visual function were evaluated. RESULTS: A larger FAZ area and longer FAZ perimeter were observed in the CVFD group than in the PVFD and normal groups. The FAZ area, perimeter, and circularity were better in differentiating glaucomatous eyes with CVFDs from normal eyes [areas under the receiver operating characteristic curves (AUC), 0.78 to 0.88] than in differentiating PVFDs from normal eyes (AUC, 0.51 to 0.64). The FAZ perimeter had a similar AUC value to the circumpapillary retinal nerve fiber layer and macular ganglion cell-inner plexiform layer thickness for differentiating eyes with CVFDs from normal eyes (all P>0.05, the DeLong test). The FAZ area was significantly correlated with central visual function (beta=-112.7, P=0.035, multivariate linear regression). CONCLUSIONS: The FAZ perimeter had good diagnostic capability in differentiating glaucomatous eyes with CVFDs from normal eyes, and may be a potential diagnostic biomarker for detecting glaucomatous patients with CVFDs. PMID- 29016522 TI - Spontaneous Resolution of Delayed Suprachoroidal Hemorrhage in the Single Eye Following Needling in Congenital Glaucoma. AB - INTRODUCTION: Suprachoroidal hemorrhage (SCH) is a rare, but potentially vision threatening event with poor long-term visual prognosis. At present, there is disagreement whether surgical intervention or conservative treatment is superior in the management. We report on a case of spontaneous resolution of severe SCH after needling procedure in the only eye of a young patient with congenital glaucoma. CASE PRESENTATION: A 43-year-old woman with congenital glaucoma was scheduled for bleb needling in her only eye. Preoperative best-corrected visual acuity was 20/40 and intraocular pressure 20 mm Hg. On the third postoperative day, she developed a massive delayed SCH with appositional (kissing) choroidal bullae and visual acuity was hand motion. Scleral drainage was performed after 10 days, but did not show a significant decrease of the choroidal swelling and further conservative treatment was discussed. After 2 months, choroidal swelling had completely resolved, best-corrected visual acuity was 20/50, and intraocular pressure was 11 mm Hg. DISCUSSION: Full functional recovery and decrease of choroidal swelling may be attained with a conservative treatment of massive delayed SCH after needling procedure in congenital glaucoma. PMID- 29016525 TI - PARACENTRAL ACUTE MIDDLE MACULOPATHY IN SUSAC SYNDROME. AB - PURPOSE: To present the first reported case of paracentral acute middle maculopathy in association with Susac syndrome. METHOD: Case report. RESULTS: A young female patient presented with unilateral sudden loss of vision of her right eye to count fingers. There were numerous cotton wool spots in a multifocal pattern concentrated around the right macula and optic disk. Clinical examination and spectral domain optical coherence tomography imaging were consistent with paracentral acute middle maculopathy, and fluorescein angiography showed features of retinal arteriole vasculitis. Magnetic resonance imaging demonstrated multiple white matter lesions in a pericallosal distribution. High-dose corticosteroid therapy was commenced, and visual acuity gradually improved to 6/6 corrected. The patient reported hearing impairment and was diagnosed with Susac syndrome for which she has responded extremely well to long-term immunosuppressive therapy. CONCLUSION: Paracentral acute middle maculopathy can occur in association with Susac syndrome. Susac syndrome may present only with multifocal retinal ischemia, and such patients with paracentral acute middle maculopathy should be checked for characteristic magnetic resonance imaging lesions and hearing loss. PMID- 29016523 TI - Brief Report: PrEP Use During Periods of HIV Risk Among East African Women in Serodiscordant Relationships. AB - BACKGROUND: Pre-exposure prophylaxis (PrEP) is efficacious for African women at risk for HIV, but data on adherence outside clinical trials are sparse. We describe the persistence and execution of PrEP use among women participating in a large open-label PrEP demonstration project, particularly during periods of HIV risk. SETTING AND METHODS: Three hundred ten HIV-uninfected women in HIV serodiscordant couples in Kenya and Uganda were offered and accepted PrEP. Electronic monitoring caps were used to measure daily PrEP adherence. Time on PrEP while at risk for HIV (when the HIV-infected partner was on antiretroviral therapy <6 months) and weekly adherence while on PrEP were calculated and compared among older and younger (<25 years old) women. RESULTS: As defined above, women were at risk for HIV for an average of 361 days; 54% took PrEP during their entire risk period and 24% stopped but restarted PrEP during their risk period. While on PrEP, women took >=6 doses/wk for 78% of weeks [67% of weeks for women aged <25 years, 80% of weeks for women aged >=25 years (P < 0.001)], and >=4 doses for 88% of weeks [80% for those <25, 90% for those >=25, (P < 0.001)]. Compared with historical, risk-matched controls, HIV incidence was reduced 93% (95% confidence interval: 77% to 98%) for all women and 91% (95% confidence interval: 29% to 99%) among women aged <25 years. CONCLUSION: Women, including young women, in HIV-serodiscordant couples took PrEP successfully over sustained periods of risk. Although young women had lower adherence than older women, they achieved strong protection, which suggests that women can align PrEP use to periods of risk and imperfect adherence can still provide substantial benefit. PMID- 29016527 TI - ACUTE MACULAR NEURORETINOPATHY AND PERIPHERAL RETINAL VASCULAR ABNORMALITIES IN A PATIENT BORN HIV SEROPOSITIVE. AB - PURPOSE: To describe the case of a born HIV seropositive woman who developed outer retinal alterations secondary to vascular abnormalities in the perimacular region and in the periphery of both eyes. METHODS: Case report. RESULTS: A 21 year-old woman born HIV seropositive was referred for a routinary visit. Her best corrected visual acuity was 20/20 in both eyes, and during the visit, only mild superotemporal metamorphopsia in the left eye was reported. Multimodal imaging disclosed findings consistent with acute macular neuroretinopathy such as reddish brown lesions at fundus examination and disruption of ellipsoid zone at spectral domain optical coherence tomography. Peripheral vascular alterations were also noted at fluorescein angiography. CONCLUSION: Several associations or risk factors have been identified in patients with acute macular neuroretinopathy, including oral contraceptives, epinephrine/ephedrine, or systemic shock. To the best of our knowledge, this is the first case describing peripheral vascular alterations and acute macular neuroretinopathy in association with HIV seropositivity at birth. PMID- 29016526 TI - ENLARGEMENT OF SCLEROCHOROIDAL CALCIFICATIONS: MULTIMODAL IMAGING UPDATE. AB - PURPOSE: To report the multimodal imaging and enlargement of sclerochoroidal calcifications over a 10-year period. METHODS: Case report of a 74-year-old white man who presented for routine follow-up and was found to have yellow chorioretinal lesions in the right eye. RESULTS: Multimodal imaging was performed and confirmed sclerochoroidal calcifications. Comparison of fundus photography over a 10-year period demonstrated growth of preexisting lesions and the development of new lesions in the right eye. CONCLUSION: Over time, this patient developed new sclerochoroidal calcifications and enlargement of preexisting calcifications. We, therefore, recommend regular follow-up with periodic multimodal imaging for these patients. PMID- 29016528 TI - TRANSTHYRETIN V30M FAMILIAL AMYLOIDOSIS PRESENTING AS ISOLATED RETINAL ANGIOPATHY. AB - PURPOSE: To describe a patient with confirmed transthyretin V30M form of familial amyloidosis who presented initially with isolated retinal angiopathy. METHODS: Retrospective chart review. RESULTS: A 66-year-old woman presented with bilateral retinal angiopathy. Extensive workup for an infectious, inflammatory, or hypercoagulable cause was unrevealing. The patient subsequently developed bilateral neovascularization of the optic nerve and iris complicated by recurrent vitreous hemorrhages, which were treated with intravitreal bevacizumab and panretinal photocoagulation. The development of cardiac and gastrointestinal symptoms 5 years after presentation led to tissue biopsies that revealed both Congo red staining and apple-green birefringence in polarized light, confirming the diagnosis of systemic amyloidosis. Sequencing of the transthyretin gene confirmed the patient to be heterozygous for the common amyloidogenic V30M mutation. CONCLUSION: The common transthyretin V30M form of familial amyloidotic polyneuropathy can rarely present with retinal angiopathy. Recurrent vitreous hemorrhages were treated successfully with intravitreal bevacizumab and panretinal photocoagulation. PMID- 29016524 TI - Incidence of Tuberculosis Among HIV-Positive Individuals Initiating Antiretroviral Treatment at Higher CD4 Counts in the HPTN 071 (PopART) Trial in South Africa. AB - INTRODUCTION: Antiretroviral treatment (ART) guidelines recommend life-long ART for all HIV-positive individuals. This study evaluated tuberculosis (TB) incidence on ART in a cohort of HIV-positive individuals starting ART regardless of CD4 count in a programmatic setting at 3 clinics included in the HPTN 071 (PopART) trial in South Africa. METHODS: A retrospective cohort analysis of HIV positive individuals aged >=18 years starting ART, between January 2014 and November 2015, was conducted. Follow-up was continued until 30 May 2016 or censored on the date of (1) incident TB, (2) loss to follow-up from HIV care or death, or (3) elective transfer out; whichever occurred first. RESULTS: The study included 2423 individuals. Median baseline CD4 count was 328 cells/MUL (interquartile range 195-468); TB incidence rate was 4.41/100 person-years (95% confidence interval [CI]: 3.62 to 5.39). The adjusted hazard ratio of incident TB was 0.27 (95% CI: 0.12 to 0.62) when comparing individuals with baseline CD4 >500 and <=500 cells/MUL. Among individuals with baseline CD4 count >500 cells/MUL, there were no incident TB cases in the first 3 months of follow-up. Adjusted hazard of incident TB was also higher among men (adjusted hazard ratio 2.16; 95% CI: 1.41 to 3.30). CONCLUSIONS: TB incidence after ART initiation was significantly lower among individuals starting ART at CD4 counts above 500 cells/MUL. Scale-up of ART, regardless of CD4 count, has the potential to significantly reduce TB incidence among HIV-positive individuals. However, this needs to be combined with strengthening of other TB prevention strategies that target both HIV-positive and HIV-negative individuals. PMID- 29016530 TI - REABSORPTION OF ACQUIRED VITELLIFORM LESIONS IN VITREOMACULAR DISORDERS AFTER VITRECTOMY. AB - PURPOSE: To describe cases of reabsorption of subretinal acquired vitelliform material (acquired vitelliform lesion [AVL]) associated with vitreomacular disorders after 25-gauge pars plana vitrectomy and peeling of internal limiting membrane. METHODS: Data of consecutive patients who underwent 25-gauge transconjunctival pars plana vitrectomy for vitreomacular disorders at the Department of Ophthalmology of the University Hospital of Brussels (Belgium) were collected. Patients featuring AVL on fundus examination or on spectral domain optical coherence tomography were recruited. Patients were followed up for 12 months after surgery. RESULTS: Four eyes of three consecutive white patients presenting AVL were included. Three cases were affected by macular pucker, whereas one case featured vitreomacular traction syndrome. Progressive flattening of the AVL after surgery was observed in three eyes of three patients. One eye did not show any resorption of the submacular accumulation. In two eyes, atrophy of the retinal pigment epithelium and the outer retinal layers was observed along with resolution of the AVL, with significant worsening of visual acuity postoperatively. CONCLUSION: The outcome of surgery in cases of submacular AVL associated with vitreomacular interface syndromes could be heterogeneous and may depend on the duration of the disease and baseline optical coherence tomography characteristics of the lipofuscin accumulation. PMID- 29016529 TI - NOVEL CONE DYSTROPHY WITH CENTRAL ELLIPSOID ZONE LOSS ASSOCIATED WITH HUMAN RETINAL FASCIN GENE (FSCN2) MUTATION. AB - PURPOSE: To report the first case of a cone dystrophy with central ellipsoid zone loss associated with a mutation in the human retinal fascin gene (FSCN2). METHODS: Multimodal retinal imaging findings including spectral domain optical coherence tomography and fundus autofluorescence are presented. The results of functional testing and mutational analysis are also discussed. PATIENTS: Single patient with a diagnosis of cone dystrophy. RESULTS: Spectral domain optical coherence tomography imaging illustrated central loss of the ellipsoid zone band in each eye. Full-field and multifocal electroretinogram testing confirmed a diagnosis of cone dystrophy in a 35-year-old male patient. Subsequent cone dystrophy genetic panel identified a novel mutation (p.Pro406Leu:c.1217C>T) in the FSCN2 gene. CONCLUSION: This is the first case report of a patient diagnosed with cone dystrophy associated with a novel mutation in the FSCN2 gene. FSCN2 genetic testing should be considered in patients with central ellipsoid loss and cone dystrophy, especially as specific gene therapy treatments emerge in the future. PMID- 29016531 TI - Myocardial preload alters central pressure augmentation through changes in the forward wave. AB - OBJECTIVE: Augmentation index (AIx) is often used to quantify the contribution of wave reflection to central pulse pressure. Recent studies have challenged this view by showing how contractility-induced changes in the forward pressure wave can markedly impact AIx. We hypothesized that changes in preload will also affect AIx through changes in the forward wave and studied this in two experiments. METHODS: Noninvasively obtained aortic pressure was used to study central haemodynamics and wave morphology. In the first experiment, we examined the effects of head-up tilt with and without unilateral thigh cuff in 12 young healthy volunteers (mean age 26 years, 50% men). In the second experiment, we examined the effects of active standing in 31 middle-aged patients (mean age 57 years, 65% men) before and after phlebotomy. RESULTS: Head-up tilt or active standing significantly decreased AIx [-17.7 +/- 10.4 percentage point (pp) in the young population, -4.7 +/- 12.3 pp in the middle-aged population, both P < 0.05]. The fall in AIx was associated with increases in HR, diastolic pressure and systemic vascular resistance and a decrease in stroke volume (all P < 0.05). Inflation of a unilateral thigh cuff reduced the decrease in AIx by 10.7 pp, whereas 500 ml of blood loss augmented the fall in AIx by 5.9 pp (both P < 0.05). The changes in AIx were related to a preload-induced change in forward pressure wave shape (earlier peaking and steeper downstroke). CONCLUSION: Next to inotropic and chronotropic effects, preload emerges as another myocardial factor that obscures the relation between wave reflection and AIx. PMID- 29016532 TI - KCNJ5 mutation as a predictor for resolution of hypertension after surgical treatment of aldosterone-producing adenoma. AB - OBJECTIVE: To investigate the effect of KCNJ5 mutations on the cure of hypertension in patients with aldosterone-producing adenoma (APA) after unilateral adrenalectomy. METHODS: Our study included 142 patients with APA, who were detected with an endocrinological abnormality and diagnosed with hypertension, as confirmed by pathological analysis. We sequenced KCNJ5, ATP1A1, ATP2B3, CACNA1D, and CTNNB1 from APA tissue samples, and performed a retrospective analysis to determine correlations between wild-type or mutated KCNJ5 and patient clinical characteristics. RESULTS: Somatic KCNJ5 mutations were identified in 106 of 142 patients with APA, 136 of whom had resolution of hyporeninemic-hyperaldosteronemia 1 year after surgery. Of the 136 patients, 81 patients had resolution of hypertension ('Cured group' vs. 'Improved group'). We found increased prevalence of KCNJ5 mutations in the Cured group compared to the Improved group (85.2% vs. 60.0%, respectively; P = 0.002), which was associated with younger age, shorter duration of hypertension, fewer antihypertensive medications, lower BMI, higher aldosterone level, higher estimated glomerular filtration rate, and milder vascular complications. In both groups we found that harbouring a KCNJ5 mutation, taking fewer antihypertensive medications, and the duration of hypertension were independently associated with resolution of hypertension by unilateral adrenalectomy. In patients with KCNJ5-mutated APA, left ventricular hypertrophy was significantly decreased by surgical treatment in patients from either Cured or Improved groups, although those patients with wild type KCNJ5 showed no change. CONCLUSIONS: Testing for KCNJ5 mutations in young patients with APA may provide a prognostic indication for resolution of hypertension and severity of vascular complications. PMID- 29016533 TI - Age at natural menopause and hypertension among middle-aged and older Chinese women. AB - OBJECTIVES: Earlier age at natural menopause has been associated with cardiovascular disease in several studies, but evidence of its association with hypertension is lacking. We aimed to examine the relationship between age at natural menopause and hypertension among middle-aged and older Chinese women. METHODS: A total of 13 406 postmenopausal women (mean age 63.5 years) were enrolled from the Dongfeng-Tongji cohort study in Hubei province, China. Age at natural menopause was self-reported and was categorized into three groups (<=45, 46-52, or >=53 years). Logistic regression models were used to calculate the odds ratios (ORs) and 95% confidence intervals (CIs) for hypertension in relation to age at natural menopause. RESULTS: Of the study participants, 6690 (49.9%) women were diagnosed as hypertension. The mean age at natural menopause was 49.3 +/- 3.3 years. After adjustment for potential confounders, the ORs of hypertension for women who reached menopause at age 45 or less and 46-52 years were 1.27 (95% CI, 1.08, 1.50) and 1.14 (95% CI, 1.01, 1.29), respectively, compared with those who reached menopause at age at least 53 years. Each 1-year delay in menopause was associated with 2% decrease in prevalence of hypertension (OR, 0.98; 95% CI, 0.97, 0.99). CONCLUSION: Our findings suggested that earlier age at natural menopause was related to prevalence of hypertension independent of potential confounders. Identification of women with earlier menopause offers a window of opportunity to improve women's health during the postmenopausal years. PMID- 29016534 TI - Analysis of the citation of articles published in the European Journal of Emergency Medicine since its foundation. AB - OBJECTIVES: The aim of this study was to evaluate the evolution of the citation of articles from the European Journal of Emergency Medicine (EJEM) from 1994 (EJEM foundation) to 2015 and identify highly cited articles and their principal characteristics and determine a possible correlation between the citations counted in different databases. MATERIALS AND METHODS: We obtained the articles published in EJEM from 1994 to 2015 in ISI-WoS (main source) and Scopus, Google Scholar, and Medline databases (accessory sources). The citations were quantified and their annual evolution and the bibliometric indices derived (impact factor and SCImago Journal Rank) were evaluated. We identified and analyzed the highly cited EJEM articles and evaluated the possible correlation between the citations counted for these articles in the databases. RESULTS: Overall, 1705 EJEM articles were cited 9422 times in 8122 different articles. The evolution of the global citation, impact factor, and SCImago Journal Rank from 1994 to 2015 increased significantly. The h-index of EJEM was 30, and 31 articles were considered highly cited (>=30 citations), 16.1% of them being clinical trials. By subjects, 22.5% corresponded to cardiology, 19.3% to emergency department management, and 12.9% to pediatrics; by countries, 81% were from Europe, with Belgian authors publishing four (12.9%) highly cited articles, and French, Spanish, British, and Swedish authors having three (9.7%) each. Two studies in the EJEM achieved the definition of 'citation classics' (more than 100 citations). The number of citations in all the databases, except Medline, showed statistically significant correlations. CONCLUSION: Citation of EJEM articles has progressively increased and EJEM bibliometric indicators have improved; most highly cited articles are mainly by European authors. PMID- 29016536 TI - Repair of a Full-Thickness Defect of the Lower Eyelid Margin. PMID- 29016537 TI - Long-Pulsed Nd: YAG Laser Treatment for Nail Psoriasis. AB - BACKGROUND: Psoriasis is a chronic inflammatory skin disease in which lesions display angiogenesis and increased vascularity. OBJECTIVE: The long-pulsed 1,064 nm neodymium:yttrium-aluminum-garnet (Nd:YAG) laser treats vascular lesions which suggests that it might also be used to treat nail psoriasis. METHODS: Sixteen patients (10 males and 6 females) with isolated nail psoriasis or nail with only mild cutaneous involvement were enrolled in the study. Nails were treated for 3 sessions with long-pulsed 1,064-nm Nd:YAG laser once monthly. During the course of the treatment, nail bed and matrix Nail Psoriasis Severity Index (NAPSI) scores were recorded. RESULTS: The mean baseline NAPSI score was 26 +/- 7.2. The means of total NAPSI scores after the first, second, and third treatment sessions were as follows: 22 +/- 6.6, 13 +/- 6, and 5.7 +/- 4.3, respectively. The decline in NAPSI score was statistically significant. At the end of the 3 treatment sessions, both nail bed and matrix lesions significantly responded to Nd:YAG laser treatment. CONCLUSION: The Nd:YAG laser is a promising treatment option for nail psoriasis. PMID- 29016535 TI - Botulinum Toxin in Aesthetic Medicine: Myths and Realities. AB - BACKGROUND: Several formulations of Botulinum toxin serotype A (BoNT-A) for aesthetic indications are available, with numbers likely to increase. Preparations are not interchangeable, based on dose unit comparisons. OBJECTIVE: Numerous myths and misconceptions regarding the use of BoNT-A for aesthetic indications have arisen, which this review aims to lay to rest. MATERIALS AND METHODS: This review assesses evidence for and against each of the most common myths regarding BoNT use in aesthetics. RESULTS: BoNT-A neurotoxin/protein complexes are irrelevant to the toxin's therapeutic/aesthetic indications. BoNT-A neurotoxin/protein complexes do not influence movement from injection site or immunogenicity. Any relationship between neutralizing antibody formation and clinical response is complex and clinicians should consider other factors that may induce an apparent loss of clinical response. Diffusion appears predominately, perhaps exclusively, dose dependent. Careful placement and correct dosing optimizes likelihood of good outcomes. Manufacturers recommend reconstitution of products with sterile nonpreserved saline. However, compelling evidence suggests that reconstitution using preserved saline dramatically improves patient comfort without compromising efficacy. Several post-treatment instructions/restrictions are widely used despite the lack of evidence, but muscle activity after injection may be beneficial. Cooling the treatment area might hinder BoNT-A translocation and should probably be abandoned. CONCLUSION: The existing evidence suggests that experienced users should achieve equivalent results regardless of BoNT-A formulation, but additional, well-designed, adequately powered, controlled randomized studies should be performed. PMID- 29016538 TI - Healing Time Correlates With the Quality of Scaring: Results From a Prospective Randomized Control Donor Site Trial. AB - BACKGROUND: Scar formation remains a potential problem after surgery or trauma. Factors influencing scar tissue have been recognized, most notably healing time and wound depth. OBJECTIVE: To examine the association between healing time and the quality of scar tissue formation. MATERIALS AND METHODS: Scarring was assessed at 3 and 12 months after treatment in an RCT of 219 patients and consecutive 438 split-thickness skin graft donor sites. The primary end point of the study was healing time and the quality of scar tissue, which was scored by a validated scar scale evaluating scar height, surface, and color. RESULTS: The mean time of wound healing was 15.8 days, with a mean scar score of 6.89 at 3 months and 4.66 at 12 months. There was a significant (p < .000001) and linear correlation between healing time and scar quality. Of particular note, at 12 months, all subparameters of the score demonstrated worsening with prolonged time to heal. CONCLUSION: The authors could objectively demonstrate that epithelialization time is an important factor influencing scar quality. In contrast to previous assumptions, this correlation follows linearly. It is reasonable then to assume that treatment strategies expediting healing will also improve scar outcome. PMID- 29016539 TI - Color Doppler Ultrasound Supports Early Diagnosis of Mixed High and Low Risk of Recurrence Subtypes in the Same Basal Cell Carcinoma Lesion. PMID- 29016540 TI - Deoxycholic Acid Injections for Bra-Line Lipolysis. PMID- 29016541 TI - A Novel Treatment of Acne Keloidalis Nuchae by Long-Pulsed Alexandrite Laser. AB - BACKGROUND: Acne keloidalis nuchae (AKN) is a dermatological condition characterized by follicular-based papules and pustules that later form hypertrophic or keloid-like scars. Laser-assisted hair reduction such as 810-nm diode laser and 1,064-nm Nd:YAG laser have been used for treating AKN with promising results. OBJECTIVE: To evaluate the therapeutic effect and safety of alexandrite laser in the treatment of different lesions of AKN. METHODS: Seventeen male patients with AKN received 6 sessions of 755-nm alexandrite laser. Papule and pustule count, keloidal plaque size, pliability, tenderness, and itching were assessed at the fourth session and 4 weeks after the sixth session. Patient satisfaction and Dermatology Life Quality Index (DLQI) questionnaire were performed at the end of treatment. Patients were followed up for 3 months after the final treatment. RESULTS: There was a significant decrease in the mean papule, pustule count, keloidal plaque size, and pliability at the fourth and sixth laser sessions when compared with baseline. Reduction of the hair density in the treated area is the only complication observed, which was accepted by the patients because of its reversible course. There was a statistically significantly higher percentage of improvement in the early lesions (papulopustular) compared with late (keloidal plaque) lesions. By the end of laser sessions, DLQI scores were significantly reduced. Temporary hair loss was noted in 4 patients in the treated sites. No lesional recurrence was detected in the follow-up period. CONCLUSION: Using 755-nm alexandrite laser for treatment of AKN is a safe and effective procedure with low recurrence rates. Alexandrite laser can significantly improve the quality of life of those patients suffering from this disfiguring chronic disorder. PMID- 29016542 TI - Long-Term Follow-Up Results of Topical Imiquimod Treatment in Basal Cell Carcinoma. AB - BACKGROUND: Imiquimod 5% topical cream is approved for treatment of superficial basal cell carcinoma (BCC). Data on the long-term efficacy and usage in other BCC subtypes are scarce. OBJECTIVE: Evaluation of long-term safety and efficacy of topical imiquimod treatment in various BCC subtypes and locations, with individualized treatment duration. MATERIALS AND METHODS: Histopathologically confirmed BCCs treated solely with topical imiquimod were identified retrospectively and included in this study. Clinical and histopathologic tumor clearances were the primary end point. After treatment was concluded, patients were examined every 3 to 6 months. RESULTS: In total, 24 BCC samples from 22 patients (F:M = 9:13; mean age: 73.5 years, SD: 10.767) were evaluated. The majority of the lesions were located in the head and neck area (83%). Mean treatment duration until complete clearance was 15.7 +/- 6.9 weeks (6-28 weeks). Imiquimod was discontinued in 3 lesions, due to either clinically or histopathologically insufficient response. During follow-up, 2 lesions recurred, at 42 and 50 months after treatment. During a mean follow-up time of 72.7 (SD = 9) months, 79.1% of the lesions were cured without local recurrence. CONCLUSION: Although imiquimod is only approved for superficial BCC, treatment success was high among the study patients with various histological subtypes, with good long term cosmetic results. PMID- 29016544 TI - Investigation of the Efficacy and Safety of Topical Vibration Anesthesia to Reduce Pain From Cosmetic Botulinum Toxin A Injections in Chinese Patients: A Multicenter, Randomized, Self-Controlled Study. AB - BACKGROUND: Vibration has been proved to be effective to reduce pain during facial cosmetic injections, but it has not been studied in Chinese patients. OBJECTIVE: To investigate the efficacy and safety of vibration for pain reduction associated with cosmetic botulinum toxin A (BTX-A) injections in Chinese patients. MATERIALS AND METHODS: In this prospective, randomized, split-face and right-left, self-controlled study, 53 patients received BTX-A injections for rhytid reduction, lower face, shoulder, and leg reshaping. Injections were given in a split-face and right-left design randomly assigned. A vibration stimulus was coadministered with BTX-A injections on one side, whereas the other side received BTX-A injections only. Patients completed a questionnaire immediately after treatment and were followed up 2 weeks later. A visual analog scale of pain sensation was statistically analyzed. RESULTS: The patients experienced both clinically and statistically significant pain reduction when a vibration was coadministered with injections. Patients reported less pain on the treated side compared with the control side. Overall, 75% of patients preferred to receive vibration with their next treatment. No adverse events were reported. CONCLUSION: Vibration is an effective and safe way to reduce pain during cosmetic BTX-A injections and may have applications in other cosmetic procedures. PMID- 29016543 TI - Finer Needles Reduce Pain Associated With Injection of Local Anesthetic Using a Minimal Insertion Injection Technique. AB - BACKGROUND: The injection of local anesthetic into the skin is often the only memorable event described by the patient after dermatologic procedures. OBJECTIVE: The authors compared the pain felt during injection of local anesthetic using a minimal needle insertion technique with a 30- or 33-gauge needle. MATERIALS AND METHODS: Three hundred eighteen patients with tumors on the head and neck were injected with lidocaine using a previously described technique with either a 30- or 33-gauge needle. After injection, patients were surveyed using the visual assessment scale for pain. RESULTS: Seventy-seven percent of patients felt no pain with injection on the face using a 33-gauge needle compared with 64% with a 30 gauge, whereas 94% of patients felt no pain on the scalp with a 33-gauge needle compared with 54% with a 30 gauge. Visual analog scale scores were also significantly decreased on the face and scalp using the smaller needle. There was no difference in pain between the 2 needles with injection on the neck. CONCLUSION: This study further validates the use of this technique for the injection of lidocaine and the preference of a 33 gauge over a 30-gauge needle for the initial injection on the face and scalp. PMID- 29016545 TI - The Skin Surgery Patient Experience, a Retrospective Review. PMID- 29016546 TI - Histologic Accuracy of Mohs Micrographic Surgery. AB - BACKGROUND: Mohs micrographic surgery enables the surgeon to maximize tumor removal while minimizing the amount of tissue being removed using advanced mapping techniques combined with microscopy. Interpretation of frozen section slides is vital to the success of Mohs micrographic surgery. OBJECTIVE: Evaluate and confirm the congruence of frozen section slide interpretation between fellowship-trained Mohs surgeons and dermatopathologists. METHODS: Retrospective cohort concordance study spanning 10 years (n = 1,720 cases). RESULTS: The concordance rate for frozen slide interpretation between fellowship-trained Mohs surgeons and dermatopathologists in this study was 99.5%. CONCLUSION: This study demonstrates agreement between the interpretation of histologic frozen section slides when evaluated by fellowship-trained Mohs surgeons and dermatopathologists. PMID- 29016547 TI - A Cautionary Tale: A Vascular Event With Deoxycholic Acid Injection. PMID- 29016548 TI - Improving Sun-Protective Behaviors and Self-Skin Examinations Among African Americans: A Randomized Controlled Trial. AB - BACKGROUND: Few studies describing sun-protective behaviors, knowledge, and self efficacy in African Americans exist. Although educational programs targeting Caucasians and Hispanics have been successful in increasing melanoma awareness and knowledge, no such investigation has been applied to African Americans. OBJECTIVE: To evaluate the effectiveness of a brochure or video educational intervention on the sun-protective behaviors, knowledge, and self-efficacy regarding melanoma in African Americans. MATERIALS AND METHODS: A randomized controlled trial of a presurvey and postsurvey, in an academic outpatient dermatology clinic. Participants were self-identified African Americans, at least 18 years old, fluent, and literate in English. Patients randomized to the brochure-intervention group (n = 72) received a melanoma brochure from the National Cancer Institute. Patients randomized to the video-intervention group (n = 71) received the brochure and watched an online melanoma tutorial. RESULTS: Sun protective behaviors, knowledge, and self-efficacy regarding melanoma all improved equally from pre-to posteducation, in both the brochure- and video intervention groups. CONCLUSION: Melanoma educational interventions similar to those previously demonstrated to be successful in Caucasian and Hispanic populations are also effective among African Americans. PMID- 29016549 TI - Depressive Symptoms, Antidepressant Medication Use, and Inflammatory Markers in the Diabetes Prevention Program. AB - OBJECTIVE: Antidepressant medication use (ADM) has been shown to predict diabetes. This article assessed the role of inflammatory markers in this relationship within the Diabetes Prevention Program (DPP). METHODS: DPP participants randomized to metformin (MET), life-style intervention (ILS), or placebo (PLB) were assessed for depression (Beck Depression Inventory [BDI]) annually, ADM use semiannually, serum inflammatory markers (C-reactive protein [CRP], interleukin 6 [IL-6]) at baseline and year 1, and diagnosis of type 2 diabetes mellitus (T2DM) semiannually (for 3.2 years). RESULTS: At baseline (N = 3187), M (SD) body mass index was 34 (6) kg/m and the median (interquartile range) BDI score was 3 (1-7). One hundred eighty-one (5.7%) reported ADM use and 328 (10%) had BDI scores of 11 or higher. CRP and IL-6 levels did not differ by treatment group. Baseline ADM, but not BDI score, was associated with higher levels of baseline CRP adjusted for demographic, anthropometric variables, and other medications (20% higher, p = .01). Year 1 CRP decreased for non-ADM users in the MET (-13.2%) and ILS (-34%) groups and ADM users in the ILS group (-29%). No associations were found with IL-6. CRP and continuous use of ADM predicted incident T2DM in the PLB group. In the ILS group, continuous and intermittent ADM, but not CRP, predicted T2DM. In the MET group, CRP predicted incident T2DM. CRP did not mediate the risk of T2DM with ADM use in any group. CONCLUSIONS: ADM was significantly associated with elevated CRP and incident T2DM. In the PLB group, ADM and CRP independently predicted onset of T2DM; however, CRP did not significantly mediate the effect of ADM. PMID- 29016550 TI - Assessing Lifetime Stress Exposure Using the Stress and Adversity Inventory for Adults (Adult STRAIN): An Overview and Initial Validation. AB - OBJECTIVE: Numerous theories have proposed that acute and chronic stressors may exert a cumulative effect on life-span health by causing biological "wear and tear," or allostatic load, which in turn promotes disease. Very few studies have directly tested such models, though, partly because of the challenges associated with efficiently assessing stress exposure over the entire life course. To address this issue, we developed the first online system for systematically assessing lifetime stress exposure, called the Stress and Adversity Inventory (STRAIN), and describe its initial validation here. METHODS: Adults recruited from the community (n = 205) were administered the STRAIN, Childhood Trauma Questionnaire-Short Form, and Perceived Stress Scale, as well as measures of socioeconomic status, personality, social desirability, negative affect, mental and physical health complaints, sleep quality, computer-assessed executive function, and doctor-diagnosed general health problems and autoimmune disorders. RESULTS: The STRAIN achieved high acceptability and was completed relatively quickly (mean = 18 minutes 39 seconds; interquartile range = 12-23 minutes). The structure of the lifetime stress data best fit two latent classes overall and five distinct trajectories over time. Concurrent associations with the Childhood Trauma Questionnaire-Short Form and Perceived Stress Scale were good (r values = .147-.552). Moreover, the STRAIN was not significantly related to personality traits or social desirability characteristics and, in adjusted analyses, emerged as the measure most strongly associated with all six of the health and cognitive outcomes assessed except current mental health complaints (beta values = .16-.41; risk ratios = 1.02-1.04). Finally, test-retest reliability for the main stress exposure indices over 2-4 weeks was excellent (r values = .904-.919). CONCLUSIONS: The STRAIN demonstrated good usability and acceptability; very good concurrent, discriminant, and predictive validity; and excellent test-retest reliability. PMID- 29016551 TI - Pectoral Fascial (PECS) I and II Blocks as Rescue Analgesia in a Patient Undergoing Minimally Invasive Cardiac Surgery. AB - INTRODUCTION: Patients undergoing minimally invasive cardiac surgery have the potential for significant pain from the thoracotomy site. We report the successful use of pectoral nerve block types I and II (Pecs I and II) as rescue analgesia in a patient undergoing minimally invasive mitral valve repair. CASE REPORT: In this case, a 78-year-old man, with no history of chronic pain, underwent mitral valve repair via right anterior thoracotomy for severe mitral regurgitation. After extubation, he complained of 10/10 pain at the incision site that was minimally responsive to intravenous opioids. He required supplemental oxygen because of poor pulmonary mechanics, with shallow breathing and splinting due to pain, and subsequent intensive care unit readmission. Ultrasound-guided Pecs I and II blocks were performed on the right side with 30 mL of 0.2% ropivacaine with 1:400,000 epinephrine. The blocks resulted in near-complete chest wall analgesia and improved pulmonary mechanics for approximately 24 hours. After the single-injection blocks regressed, a second set of blocks was performed with 266 mg of liposomal bupivacaine mixed with bupivacaine. This second set of blocks provided extended analgesia for an additional 48 hours. The patient was weaned rapidly from supplemental oxygen after the blocks because of improved analgesia. CONCLUSIONS: Pectoral nerve blocks have been described in the setting of breast surgery to provide chest wall analgesia. We report the first successful use of Pecs blocks to provide effective chest wall analgesia for a patient undergoing minimally invasive cardiac surgery with thoracotomy. We believe that these blocks may provide an important nonopioid option for the management of pain during recovery from minimally invasive cardiac surgery. PMID- 29016552 TI - The Efficacy of Peripheral Opioid Antagonists in Opioid-Induced Constipation and Postoperative Ileus: A Systematic Review of the Literature. AB - Opioid-induced constipation has a negative impact on quality of life for patients with chronic pain and can affect more than a third of patients. A related but separate entity is postoperative ileus, which is an abnormal pattern of gastrointestinal motility after surgery. Nonselective MU-opioid receptor antagonists reverse constipation and opioid-induced ileus but cross the blood brain barrier and may reverse analgesia. Peripherally acting MU-opioid receptor antagonists target the MU-opioid receptor without reversing analgesia. Three such agents are US Food and Drug Administration approved. We reviewed the literature for randomized controlled trials that studied the efficacy of alvimopan, methylnaltrexone, and naloxegol in treating either opioid-induced constipation or postoperative ileus. Peripherally acting MU-opioid receptor antagonists may be effective in treating both opioid-induced bowel dysfunction and postoperative ileus, but definitive conclusions are not possible because of study inconsistency and the relatively low quality of evidence. Comparisons of agents are difficult because of heterogeneous end points and no head-to-head studies. PMID- 29016553 TI - Bleeding and Neurologic Complications in 58,000 Interventional Pain Procedures. AB - BACKGROUND AND OBJECTIVES: Interventional pain procedures are commonly performed on patients receiving antiplatelet therapy. However, there is limited evidence to support or refute the safety of this practice. The goal of this investigation was to assess the rate of bleeding complications in a large cohort of patients undergoing intermediate- and low-risk pain procedures, with a specific focus on antiplatelet and anticoagulant medication use and baseline coagulation abnormalities. METHODS: This is a retrospective cohort study of adult patients undergoing low- and intermediate-risk pain procedures from 2005 through 2014 by the division of pain medicine at a single academic tertiary care center. Baseline characteristics, antiplatelet and anticoagulant medication use, coagulation parameters, and procedural details were extracted from the electronic medical record. The primary outcome was a bleeding-related complication requiring emergency medicine, neurology, or neurosurgical evaluation within 31 days. The secondary outcome was the presence or absence of a periprocedural red blood cell transfusion occurring within 72 hours of needle placement. RESULTS: A total of 58,066 procedures were performed on 24,590 unique patients. Preprocedural aspirin or nonsteroidal anti-inflammatory drug therapy was present for 17,825 procedures (30.7%). Sixteen procedures were associated with perioperative red blood cell transfusion (0.03%), with no difference based on preprocedural nonsteroidal anti inflammatory drug, including aspirin, or other anticoagulation use (P = 0.107). Five patients (0.009%) had a neurologic complication requiring further evaluation, of which 2 were likely related to procedural bleeding. CONCLUSIONS: Bleeding complications are rare in patients undergoing low- or intermediate-risk pain procedures even in the presence of antiplatelet medications. This is consistent with recently released guidelines. PMID- 29016554 TI - A Modified Laminoplasty Technique to Treat Cervical Myelopathy Secondary to Ossification of the Posterior Longitudinal Ligament (OPLL). AB - BACKGROUND This study aimed to evaluate the validity of modified laminoplasty in treating close-base OPLL with an occupying ratio of more than 60%. MATERIAL AND METHODS Forty-seven close-base OPLL patients with an occupying ratio of more than 60% were treated through modified laminoplasty (N=22) and combined anterior posterior approach (N=25) in the study, including 17 females and 30 males, with a mean age of 60.59+/-6.76 years (ranging from 46 to 75 years). The patients' characteristics, the recovery rate of neurological function, length of the operation, intraoperative blood loss, hospital costs, and complications were recorded and compared between the 2 groups. RESULTS The recovery rate of neurological function did not demonstrate a significant difference between the 2 groups (P=0.886). However, length of the operation and intraoperative blood loss in the modified laminoplasty group were shorter than those in the combined anterior-posterior approach group (P=0.001 and P=0.023). Moreover, the mean hospital costs in the modified laminoplasty group (5166.61+/-123.27 USD) decreased by 33.6% compared with the combined anterior-posterior approach group (7780.12+/-256.73 USD). Additionally, the complications of the modified laminoplasty group were lower than in the combined anterior-posterior approach group. CONCLUSIONS Modified laminoplasty may be considered a safe and effective strategy for patients that have demonstrated close-base OPLL with an occupying ratio of more than 60% and who cannot endure the trauma caused by the combined anterior-posterior approach due to medical disease. PMID- 29016555 TI - Interleukin-10-regulated tumour tolerance in non-small cell lung cancer. AB - BACKGROUND: Lung cancer is the most life-threatening cancer type worldwide. Treatment options include surgery, radio- and chemotherapy, as well as the use of immunomodulatory antibodies. Interleukin (IL)-10 is an immunosuppressive cytokine involved in tumour immune escape. METHODS: Immunohistochemistry (IHC) on human lung surgery tissue as well as human tumour cell line cultures, FACS analysis, real-time PCR and experimental lung cancer. RESULTS: Here we discovered a positive correlation between IL-10 and IL-10 receptor (IL-10R) expression in the lung with tumour diameter in patients with lung cancer (non-small cell lung cancer), the most life-threatening cancer type worldwide. IL-10 and IL-10R were found induced in cells surrounding the lung tumour cells, and IL-10R was mainly expressed on the surface of Foxp-3+ T-regulatory lymphocytes infiltrating the tumour of these patients where its expression inversely correlated with programmed cell death 1. These findings were confirmed in translational studies. In a human lung adenocarcinoma cell line, IL-10R was found induced under metabolic restrictions present during tumour growth, whereby IL-10 inhibited PDL1 and tumour cell apoptosis. CONCLUSIONS: These new findings suggest that IL-10 counteracts IFN-gamma effects on PD1/PDL1 pathway, resulting in possible resistance of the tumour to anti-PD1/PDL1 immunotherapy. PMID- 29016557 TI - Future perspectives of cell therapy for neonatal hypoxic-ischemic encephalopathy. AB - Neonatal ischemic brain injury causes permanent motor-deficit cerebral palsy. Hypoxic-ischemic encephalopathy (HIE) is a very serious condition that can result in death and disability. In 1997, we reported that irreversible neuronal cell damage is induced by the elevation of intracellular Ca ion concentration that has occurred in sequence after excess accumulation of the excitatory neurotransmitter glutamate during ischemia. We also reported that hypothermia was effective in treating ischemic brain damage in rats by suppressing energy loss and raising intracellular Ca ion concentration. Following the 2010 revised International Liaison Committee on Resuscitation guideline, our group developed the Guideline for the treatment of Hypothermia in Japan, and we started online case registry in January 2012. However, therapeutic hypothermia must be initiated within the first 6 h after birth. By contrast, cell therapy may have a much longer therapeutic time window because it might reduce apoptosis/oxidative stress and enhance the regenerative process. In 2014, we administered autologous umbilical cord blood stem cell (UCBC) therapy for neonatal HIE, for the first time in Japan. We enrolled five full-term newborns with moderate-to-severe HIE. Our autologous UCBC therapy is leading to new protocols for the prevention of ischemic brain damage. PMID- 29016556 TI - The current status and future of cardiac stem/progenitor cell therapy for congenital heart defects from diabetic pregnancy. AB - Pregestational maternal diabetes induces congenital heart defects (CHDs). Cardiac dysfunction after palliative surgical procedures contributes to the high mortality of CHD patients. Autologous or allogeneic stem cell therapies are effective for improving cardiac function in animal models and clinical trials. c kit+ cardiac progenitor cells (CPCs), the most recognized CPCs, have the following basic properties of stem cells: self-renewal, multicellular clone formation, and differentiation into multiple cardiac lineages. However, there is ongoing debate regarding whether c-kit+ CPCs can give rise to sufficient cardiomyocytes. A new hypothesis to address the beneficial effect of c-kit+ CPCs is that these cells stimulate endogenous cardiac cells through a paracrine function in producing a robust secretome and exosomes. The values of other cardiac CPCs, including Sca1+ CPCs and cardiosphere-derived cells, are beginning to be revealed. These cells may be better choices than c-kit+ CPCs for generating cardiomyocytes. Adult mesenchymal stem cells are considered immune-incompetent and effective for improving cardiac function. Autologous CPC therapy may be limited by the observation that maternal diabetes adversely affects the biological function of embryonic stem cells and CPCs. Future studies should focus on determining the mechanistic action of these cells, identifying new CPC markers, selecting highly effective CPCs, and engineering cell-free products. PMID- 29016559 TI - The Reflux Improvement and Monitoring (TRIM) Program Is Associated With Symptom Improvement and Weight Reduction for Patients With Obesity and Gastroesophageal Reflux Disease. AB - OBJECTIVES: Current healthcare systems do not effectively promote weight reduction in patients with obesity and gastroesophageal reflux disease (GERD). The Reflux Improvement and Monitoring (TRIM) program provides personalized, multidisciplinary, health education and monitoring over 6 months. In this study we aimed to (i) measure the effectiveness of TRIM on GERD symptoms, quality of life, and weight, and (ii) examine patient health beliefs related to TRIM. METHODS: This prospective mixed methods feasibility study was performed at a single center between September 2015 and February 2017, and included adult patients with GERD and a body mass index >=30 kg/m2. Quantitative analysis consisted of a pre- to post-intervention analysis of TRIM participants (+TRIM Cohort) and a multivariable longitudinal mixed model analysis of +TRIM vs. patients who declined TRIM (-TRIM Cohort). Primary outcomes were change in patient-reported GERD symptom severity (GerdQ) and quality of life (GerdQ-DI), and change in percent excess body weight (%EBW). Qualitative analysis was based on two focus groups of TRIM participants. RESULTS: Among the +TRIM cohort (n=52), mean baseline GerdQ scores (8.7+/-2.9) decreased at 3 months (7.5+/-2.2; P<0.01) and 6 months (7.4+/-1.9; P=0.02). Mean GerdQ-DI scores decreased, but did not reach statistical significance. Compared with the -TRIM cohort (n=89), reduction in %EBW was significantly greater at 3, 6, and 12 months among the +TRIM cohort (n=52). In qualitative analysis, patients unanimously appreciated the multidisciplinary approach and utilized weight loss effectively to improve GERD symptoms. CONCLUSIONS: In this mixed methods feasibility study, participation in TRIM was associated with symptom improvement, weight reduction, and patient engagement. PMID- 29016561 TI - Technical Advances in Per-Oral Endoscopic Myotomy (POEM). PMID- 29016560 TI - Abdominal Pain in the Roux-en-Y Gastric Bypass Patient. PMID- 29016558 TI - A Comparison of Fecal Immunochemical and High-Sensitivity Guaiac Tests for Colorectal Cancer Screening. AB - OBJECTIVES: Annual testing using either a high-sensitivity guaiac fecal occult blood test (HS-gFOBT) or a fecal immunochemical test (FIT) is recommended for screening average-risk people for colorectal cancer. We compared the performance characteristics of the HS-gFOBT Hemoccult II SENSA and two FITs (InSure FIT and OC FIT-CHEK) for detecting advanced colorectal neoplasia. METHODS: The study included 1,006 asymptomatic patients, aged 50-75 years, who were scheduled to receive a screening colonoscopy at gastroenterology practices in the Minneapolis and Indianapolis metropolitan areas. Each participant was asked to complete all three stool tests before their colonoscopy. Each test's performance characteristics were evaluated using the screening colonoscopic results as the reference standard. RESULTS: Sensitivity for detecting advanced colorectal neoplasia was highest for InSure FIT (26.3%, 95% confidence interval (CI) 15.9 40.7), followed by OC FIT-CHEK (15.1%, 95% CI 6.7-26.1) and Hemoccult II SENSA (7.4%, 95% CI 1.9-17.0). InSure FIT was statistically significantly more sensitive than both OC FIT-CHEK (absolute difference in sensitivity=11.2%, 95% CI 0.4-24.2) and Hemoccult II SENSA (difference in sensitivity=18.9%, 95% CI 10.2 32.6). Specificities were relatively high for all tests (between 96.8% and 98.6%). CONCLUSIONS: Our results suggest that some FITs are more sensitive than the HS-gFOBT Hemoccult II SENSA, but these results need to be confirmed in larger asymptomatic populations. Comparisons between the FITs examined in this study and other FITs are needed to determine the best tests for population screening. PMID- 29016563 TI - CON: Hepatocellular Carcinoma Surveillance: In Need of Higher-Quality Data. PMID- 29016562 TI - Determinants of the Association between Non-Cardiac Chest Pain and Reflux. AB - OBJECTIVES: Gastroesophageal reflux is considered to be the most common gastrointestinal cause of non-cardiac chest pain (NCCP). It remains unclear why some reflux episodes in the same patient cause chest pain while others do not. To understand more about the mechanisms by which reflux elicits chest pain, we aimed to identify factors which are important in triggering chest pain. METHODS: In this multicenter study, 120 patients with NCCP were analyzed using 24-h pH impedance monitoring. In the patients with a positive association between reflux and chest pain, the characteristics of the reflux episodes which were followed by a chest pain episode were compared with chest pain-free reflux episodes. RESULTS: Using 24-h pH-impedance monitoring, 40% of the NCCP patients were identified as having reflux as a possible cause of their chest pain. Reflux episodes that were associated with chest pain had a higher proximal extent (P=0.007), a higher volume clearance time (P=0.030), a higher 15-minute acid burden (P=0.041), were more often acidic (P=0.011), had a lower nadir pH (P=0.044), and had a longer acid duration time (P=0.027) than reflux episodes which were not followed by chest pain. Patients who experienced typical reflux symptoms were more likely to have reflux as the cause of their chest pain (52 vs. 31.4%, P=0.023). CONCLUSIONS: The presence of a larger volume of acid refluxate for a longer period of time appears to be an important determinant of perceiving a reflux episode as chest pain. 24-h pH-impedance monitoring is an important tool in identifying gastroesophageal reflux as a potential cause of symptoms in patients with NCCP. PMID- 29016564 TI - The Role of an IgA/IgG-Deamidated Gliadin Peptide Point-of-Care Test in Predicting Persistent Villous Atrophy in Patients With Celiac Disease on a Gluten Free Diet. AB - OBJECTIVES: Mucosal healing is important in celiac disease (CD) for the prevention of complications. However, obtaining duodenal biopsies is invasive, and there is currently no reliable surrogate marker for histological remission in clinical practice. We aimed to assess the role of a point-of-care test (POCT) based on IgA/IgG-deamidated gliadin peptide, in detecting persistent villous atrophy (VA) in CD. METHODS: We prospectively recruited patients with CD attending endoscopy for the assessment of histological remission. All patients had IgA-endomysial (EMA) antibodies, IgA-tissue transglutaminase (TTG) antibodies, and the POCT performed, and completed a validated dietary adherence questionnaire. A gastroscopy was performed in all patients, with four biopsies taken from the second part of the duodenum and one from the duodenal bulb. We compared the diagnostic performance of the surrogate markers against duodenal histology as the reference standard. RESULTS: A total of 217 patients with CD (70% female, age range 16-83 years, median age 53 years) on a gluten-free diet (median duration 6 years) were recruited from 2013 to 2017. Eighty-five (39.2%) patients had persistent VA. The sensitivities of the POCT, TTG, EMA, and the adherence score in detecting VA were 67.1%, 44.7%, 37.7%, and 24.7% respectively (P=0.0005). The combination of the POCT and adherence score only marginally increased the sensitivity to 70.6% (59.7-80.0%). CONCLUSIONS: The sensitivity of the POCT was higher than the other surrogate markers in predicting VA. A POCT may provide the additional advantage of an immediate objective assessment of mucosal healing at the time of an office-based follow-up consultation. PMID- 29016565 TI - Colonoscopy vs. Fecal Immunochemical Test in Reducing Mortality From Colorectal Cancer (CONFIRM): Rationale for Study Design. AB - RATIONALE: Colorectal cancer (CRC) is preventable through screening, with colonoscopy and fecal occult blood testing comprising the two most commonly used screening tests. Given the differences in complexity, risk, and cost, it is important to understand these tests' comparative effectiveness. STUDY DESIGN: The CONFIRM Study is a large, pragmatic, multicenter, randomized, parallel group trial to compare screening with colonoscopy vs. the annual fecal immunochemical test (FIT) in 50,000 average risk individuals. CONFIRM examines whether screening colonoscopy will be superior to a FIT-based screening program in the prevention of CRC mortality measured over 10 years. Eligible individuals 50-75 years of age and due for CRC screening are recruited from 46 Veterans Affairs (VA) medical centers. Participants are randomized to either colonoscopy or annual FIT. Results of colonoscopy are managed as per usual care and study participants are assessed for complications. Participants testing FIT positive are referred for colonoscopy. Participants are surveyed annually to determine if they have undergone colonoscopy or been diagnosed with CRC. The primary endpoint is CRC mortality. The secondary endpoints are (1) CRC incidence (2) complications of screening colonoscopy, and (3) the association between colonoscopists' characteristics and neoplasia detection, complications and post-colonoscopy CRC. CONFIRM leverages several key characteristics of the VA's integrated healthcare system, including a shared medical record with national databases, electronic CRC screening reminders, and a robust national research infrastructure with experience in conducting large-scale clinical trials. When completed, CONFIRM will be the largest intervention trial conducted within the VA (ClinicalTrials.gov identifier: NCT01239082). PMID- 29016566 TI - Demographics, Resource Utilization, and Outcomes of Elderly Patients With Chronic Liver Disease Receiving Hospice Care in the United States. AB - OBJECTIVES: Hospice offers non-curative symptomatic management to improve patients' quality of life, satisfaction, and resource utilization. Hospice enrollment among patients with chronic liver disease (CLD) is not well studied. The aim of tis tudy is to examine the characteristics of Medicare enrollees with CLD, who were discharged to hospice. METHODS: Medicare patients discharged to hospice between 2010 and 2014 were identified in Medicare Inpatient and Hospice Files. CLDs and other co-morbidities were identified by International Classification of Diseases-ninth revision codes. Generalized linear model was used to estimate regression coefficients with P-values. Logistic regression was used to calculate odds ratios and 95% confidence intervals. RESULTS: A total of 2,179 CLD patients and 34,986 controls without CLD met the inclusion criteria. Non-alcoholic fatty liver disease, alcoholic liver disease, and hepatitis C virus (HCV) were the most frequent cause of CLD. CLD patients were younger (70 vs. 83 years), more likely to be male (57.7 vs. 39.3%), had longer hospital stay (length of stay, LOS) (19.4 vs. 13.0 days), higher annual charges ($175,000 vs. $109,000), higher 30-day re-hospitalization rates (51.6 vs. 34.2%), and shorter hospice LOS (13.7 vs. 17.7 days) than controls (all P<0.001). Presence of HCV and congestive heart failure were the strongest contributors to increased total annual costs (34% and 31% higher, P<0.001), increased total annual LOS (26% and 43% higher, P<0.001), and increased 30-day readmission risk (2.20 and 2.19 times, respectively). CONCLUSIONS: Patients with CLD have longer and costly hospitalizations before hospice enrollment as compared with patients without CLD. It was highly likely that these patients were enrolled relatively late, which could potentially lead to less benefit from hospice. PMID- 29016567 TI - Effects of Bezafibrate on Outcome and Pruritus in Primary Biliary Cholangitis With Suboptimal Ursodeoxycholic Acid Response. AB - OBJECTIVES: Adding fibrates improves liver biochemistries in patients with primary biliary cholangitis (PBC) and suboptimal response to ursodeoxycholic acid (UDCA). As there are no consistent data regarding the course and outcome, we have assessed the effects of the combined treatment with UDCA and bezafibrate on a long-term basis. METHODS: A total of 48 patients (45 female) with PBC treated with UDCA and alkaline phosphatase (ALP) above 1.5 times upper normal levels (* UNL) were treated with bezafibrate (400 mg/day) plus UDCA (13-16 mg/kg/day). Changes in clinical features, liver biochemistries, and prognosis after therapy were assessed, as well as pruritus, using a visual analog scale (43 patients) and the 5-D descriptive pruritus scale. RESULTS: After a median of 38 months, 26 patients (54%) had normalized ALP. In these patients, jaundice, pruritus, and liver stiffness was lower, and age was higher than in patients who remained with elevated ALP. Biochemical improvement was less prominent in patients without ALP normalization. Five of these patients (23%) developed events of disease progression: 1 died, 3 were transplanted, and 1 developed hepatocellular carcinoma. Partial or complete itching relief was reported in all but one case with pruritus. Itching recurrence or worsening was observed after bezafibrate discontinuation. CONCLUSIONS: The long-term treatment with UDCA and bezafibrate results in excellent response, and is associated with a complete or partial itching relief. Incomplete ALP normalization was observed in patients with advanced disease who remained at risk for developing severe events. The combined treatment is mainly effective in patients with lower fibrosis and severity of cholestasis. PMID- 29016568 TI - Job postings for biopharmaceutical industry in medical journals is 45-fold greater for hematology oncology than medical specialties. PMID- 29016569 TI - Efficacy of pegaspargase, etoposide, methotrexate and dexamethasone in newly diagnosed advanced-stage extra-nodal natural killer/T-cell lymphoma with the analysis of the prognosis of whole blood EBV-DNA. PMID- 29016572 TI - Financial conflicts of interest among editorialists in high-impact journals. PMID- 29016570 TI - Blinatumomab-induced lineage switch of B-ALL with t(4:11)(q21;q23) KMT2A/AFF1 into an aggressive AML: pre- and post-switch phenotypic, cytogenetic and molecular analysis. PMID- 29016571 TI - Prevalence and timing of TP53 mutations in del(17p) myeloma and effect on survival. PMID- 29016573 TI - Family Planning 2020 and Nepal's Pledge. AB - NA. PMID- 29016574 TI - Microvascular Free Flaps in Oral and Maxillofacial Reconstruction following Cancer Ablation. AB - Microsurgical free flaps have become the first choice for reconstruction of oral and maxillofacial (OMF) defects after tumor resection. Till recently the pectoralis major myocutaneous flap (PMMC) was considered to be the benchmark for OMF reconstruction. This philosophy is changing fast with rapid advancement in reconstructive microsurgery. Years of innovation in reconstructive microsurgery has given us a reasonably good number of excellent flaps. Tremendous work has been put into producing some exceptionally brilliant research articles, sometimes contradicting each other. This has led to the need for clarity in some areas in this field. This article reviews the most common microvascular free flaps (MFF) namely, radial forearm free flap (RFFF), anterolateral thigh flap (ALT) and free fibula flap (FFF) that are commonly used in OMF reconstruction. Since they can cater to almost all sizeable defects we come across after ablative surgery in the OMF region, they can aptly be titled as the workhorses of OMF reconstruction with regard to free flaps. Key words: Free tissue flaps, oral surgical procedures, microsurgery. PMID- 29016575 TI - Role of Intravenous Ferric Carboxy-maltose in Pregnant Women with Iron Deficiency Anaemia. AB - BACKGROUND: Iron deficiency is a common nutritional deficiency amongst women of childbearing age. Peri-partum iron deficiency anaemia is associated with significant maternal, foetal and infant morbidity. Current options for treatment include oral iron, which can be ineffective and poorly tolerated, and red blood cell transfusions, which carry an inherent risk and should be avoided. Ferric carboxymaltose is a modern treatment option. The study was designed to assess the safety and efficacy of intravenous ferric carboxymaltose for correction of iron deficiency anaemia in pregnant women. METHODS: A prospective study was conducted at Institute of Kidney Disease and Research Centre, Ahmedabad from January 2014 to December 2016. Antenatal women (108) with iron deficiency anaemia were the study subjects. Socio-demographic profile was recorded and anaemia was assessed based on recent haemoglobin reports. Iron deficiency was diagnosed on basis of serum ferritin value. Intravenous ferric carboxymaltose as per total correction dose (maximum 1500mg) was administered to all women; the improvement in haemoglobin levels were assessed after 3 weeks of total dose infusion. RESULTS: Most of the women(n= 45, 41.7%), were in the age group of 27-30 years. Most of the women (n = 64, 59.3%) had moderate anaemia as per WHO guidelines. Mean haemoglobin levels significantly increased over a period of 3 weeks after Ferric carboxymaltose administrationand no serious life threatening adverse events were observed. CONCLUSIONS: Intravenous ferric carboxymaltose was safe and effective in pregnent women with iron deficiency anaemia. PMID- 29016576 TI - Quality of Clinical Notes: Lesson Learned from Elective Surgery Patients Admitted at University Teaching Hospital. AB - BACKGROUND: Informative relevant documentation regarding course of treatment minimizes errors, provides data for evidence based practice and legality. However, the clinical notes are often inadequate. This study aims to analyse quality of structured clinical notes in surgical patients. METHODS: This cross sectional study from Oct 1, 2015 in department of surgery included 100 clinical notes randomly selected by lottery. The entries in notes were predefined. There were 29 general entries (nine for identification, eleven for admission details, eight for treatment progress, and one for handwriting). Three additional entries were for discharge patients. The decision for entries was based on consensus meeting in surgery department. Microsoft excel was used for data entry and descriptive analysis. RESULTS: There were 100 clinical notes analysed, 62 non discharge and 38 discharge patients. Four (out of 62) non-discharge had all 29 entries documented. Two (out of 38) in discharge had all 32 entries documented. The "date of entries, clinician name and designation" were mentioned in 12%, 13% and 10%, respectively. The progress on diet was recorded in 53%, investigations in 72% and intervention details in 73%. Handwriting was difficult to read in 21%. In 13 (out of 100) the identification information was incomplete. Discharge lacked details of home advice in 11%. CONCLUSIONS: The quality of clinical note of elective surgery patients needs improvement on documentation in all domains of identification, admission, progress and discharge. PMID- 29016577 TI - Can a Leaflet with Brief Verbal Instruction Teach Nepali Women How to Correctly Contract Their Pelvic Floor Muscles? AB - BACKGROUND: Pelvic organ prolapse is a common disorder for women in Nepal causing symptoms and reduced quality of life. Pelvic floor muscle exercise is a conservative treatment option for pelvic organ prolapse but the effective way to teach women in Nepal is not known. The objective of this pilot study was to determine if an illustrative leaflet with brief verbal instruction could teach Nepali women to correctly contract their pelvic floor muscles. METHODS: Fifteen parous women attending two outpatient gynecology clinics in Kathmandu Valley were interviewed to assess their knowledge of pelvic organ prolapse and pelvic floor muscles exercise. Following verbal instruction and an illustrative leaflet on how to contract their pelvic floor muscles, the transabdominal real time ultrasound was applied to assess the muscle contraction. RESULTS: The median age of 15 participants was 45 years (range 18-75 years) and 10 women had pelvic organ prolapse. Some of the participants (9/15) knew about pelvic organ prolapse but none were aware of the pelvic floor muscles. After being taught how to contract their pelvic floor muscle, only 4 of 14 correctly contracted the pelvic floor muscle. CONCLUSIONS: This study highlighted the low knowledge of the pelvic floor muscle, and brief verbal instruction with an illustrative leaflet is also not sufficient in teaching Nepali women how to correctly contract their pelvic floor muscle. Further research is needed to determine how to teach a correct pelvic floor muscle contraction for women with low literacy in resource poor settings. PMID- 29016578 TI - Profile of Caesarean Section at Kathmandu Medical College. AB - BACKGROUND: There is a world-wide rise in caesarean section rateduring the last three decades and has been a cause of alarm and needs an in-depth study. The objective of this study was to determine the rate and clinical indications of Caesarean Section. METHODS: A hospital based study was carried out from 15th June 2015 to 15th January 2016 in Department of Obstetrics and Gynecology at Kathmandu Medical College, Sinamangal, Nepal. Patients who delivered by caesarean section were included in the study. Basic demographic data and clinical indications were noted.?? Results: A total of 1172 deliveries were carried out during the study period. Total number of caesarean section was 537 accounting to 45.81%. Most of the patients were of the age group of 25-29 years (42.8%). Most of the patients were primigravida (n=274; 51%). Emergency caesarean section was 411 (76.5%) and elective caesarean section was 126 (23.4%). Multigravida (71%) underwent more elective procedure than primigravida (25. 39%).The most frequent indication was fetal distress19.55% (n=105), failed induction 19.73%(n=106), and previous caesarean section 21.3% (n=115). CONCLUSIONS: The rate of cesarean section is quite high than that recommended by WHO which is (10-15%). Most of the caesarean sections were emergency caesarean section with previous caesarean being the leading cause. PMID- 29016579 TI - Iodine and Thyroid Function Status, and Anti-thyroid Peroxidase Antibody among Pregnant Women in Eastern Nepal. AB - BACKGROUND: Iodine deficiency, thyroid dysfunction and development of thyroid autoimmunity during pregnancy may affect mother and the developing fetus. This study was carried out to find iodine status, thyroid dysfunction and thyroid autoimmunity among pregnant women. METHODS: Ninety two pregnant women from three districts of eastern Nepal (Sunsari, Morang and Jhapa) were enrolled for the study, and urine and blood samples were collected. Urinary iodine concentration (UIC), free thyroxine (free T4), thyroid stimulating hormone (TSH), thyroglobulin and anti-thyroid peroxidase (TPO) antibody levels were estimated. RESULTS: The median UIC, mean free T4 and TSH, median thyroglobulin and anti-TPO antibody in the pregnant women were 282.2 (158.42-376) MUg/L, 1.14+/-0.41 ng/dL, 4.57+/-2.56 IU/mL, 6.5 (4.0-11.0) ng/mL, 1.52 (0.97-2.23) IU/mL respectively. In sufficient (<150 MUg/L), adequate (150-249 MUg/L) and above requirements (250-499 MUg/L) iodine intake was observed in 17 (18.5%), 22 (23.9%) and 53 (57.6%) women respectively. Subclinical hypothyroidism and overt hypothyroidism were seen in 18 (19.5%) and 1(1.1%) women, respectively. Elevated thyroglobulin (>40 ng/mL) and positive anti-TPO antibody was observed in three (3.26%) women for both. CONCLUSIONS: Iodine intake was sufficient among pregnant women recently, however, chronic iodine deficiency persisted in small fraction of pregnant women. Mild thyroid dysfunction was common, and thyroid autoimmunity was present in small portion of Nepalese pregnant women population. PMID- 29016580 TI - Surgical Site Infections and Antimicrobial Resistance Pattern. AB - BACKGROUND: Post-operative surgical site infections (SSIs) are among the leading cause of morbidity and increased medical expense. The aim of this study is to isolate identify and study antimicrobial susceptibility pattern of microorganism from surgical wound of admitted patients. METHODS: This retrospective study was carried at the Microbiology Laboratory of Bharatpur hospital, Nepal, from May 2015 to October 2015. The pus samples were cultured and antibiotic susceptibility determined in vitro by Kirby Bauer's disc diffusion method following clinical and Laboratory Standards Institute (CLSI) 2014 recommendation. RESULTS: Of the total 250 samples, 194 (77.6%) showed bacterial growth. Staphylococcus aureus was 47.4% and Escherichia coli 20.60 %. Of 194 isolates 39.2% were multi drug resistant. Amikacin was sensitive in 93.1% of Gram positive isolates and 81.8% of gram negative isolates. CONCLUSIONS: Bacterial growth is common in surgical site. Staphylococcus aureus and Escherichia coli were multidrug resistant. Grampositive and gram negative isolates were commonly sensitive to Amikacin. PMID- 29016581 TI - Bacteriological Study of Otitis Media and Its Antibiotic Susceptibility Pattern. AB - BACKGROUND: Otitis Media is a prevailing and notorious infection in developing countries causing serious local damage and threating complication. Mainly in developing countries like Nepal, Otitis Media results because of illiteracy, poverty and poor hygiene. The aim of this study was to determine the profile of Otitis Media, its causative agents and their antibiotic susceptibility pattern. METHODS: The study included 263 pus samples from 240 patients attending ENT department of Bharatpur hospital from May 2015 to January 2016. Samples were processed in microbiology department for bacteria using standard operating protocol. Antibiotic susceptibility testing was performed for all bacterial isolates by Kirby Bauer disc diffusion method and the results were interpreted according to clinical and laboratory standard institute (CLSI) guideline. RESULTS: Out of 240 patients, 121 were female and 119 were male. Highest incidence of Otitis Media was observed in 1-10 year age group. Out of 263 samples taken from 240 patients, 216 showed bacterial growth. Gram negative bacteria predominated and the most common bacteria isolated were Staphylococcus aureus 36.11% followed by Pseudomonas aeruginosa 33.33% and Coagulase Negative Staphylococci 8.08%. All bacterial isolates were sensitive to gentamycin. Staphylococcus aureus was sensitive to Amikacin and gentamycin. All gram negative bacterial isolates were sensitive to Imipenem and gentamycin. 100% of Pseudomonas aeruginosa was sensitive to Imipenem. CONCLUSIONS: Staphylococcus aureus was the most predominant organism isolated from the pus swab followed by Pseudomonas aeruginosa and all the isolated organisms were sensitive to Gentamycin. PMID- 29016582 TI - Safety and Efficacy of Percutaneous Nephrolithotomy in Children. AB - BACKGROUND: Renal stone disease is a common problem in children in developing countries. Its prevalence in children varies from 5% to 15%. It is suggested that anatomic abnormalities, recurrent urinary tract infections, metabolic disturbances, dietary and environmental factors are the predisposing factors.The aim of this study is to evaluate the safety and efficacy of percutaneous nephrolithotomy in children. METHODS: Between May 2012 and Dec 2016, 25 children with renal stone diseases underwent percutaneous nephrolithotomy and were evaluated for stone free rate, complications, blood transfusion rate, sandwich therapy, etc. RESULTS: The mean age of children was 9.3 years (7-15 years) and the mean size of the stone was 20 mm (13-27 mm). The anatomical location of stone was important in terms of stone clearance. Three patients needed blood transfusion. The overall stone free rate was 88% before discharge. Three patients had residual stones and were treated with extracorporeal shockwave lithotripsy. Complications included fever, haematuria, ileus and urine leak. No major complications were noted. There were no significant differences in haemoglobin and creatinine levels before and 12 hours after the surgery. CONCLUSIONS: Percutaneous nephrolithotomy (PCNL) can be considered a safe, effective and feasible modality of treatment for children with an average of 2 cm sized renal stones. PMID- 29016583 TI - Transabdominal Pre-peritoneal Mesh Repair versus Lichtenstein's Hernioplasty. AB - BACKGROUND: In the era of minimal invasive surgery, hernia repair has seen a paradigm shift from open to laparoscopic technique. However, superiority of laparoscopic repair over open repair is still controversial. Available literatures have shown laparoscopic technique to be better in term of post operative pain and early return to work. METHODS: In this prospective study, a total of 102 patients aged 21-78 years with inguinal hernia were recruited and enrolled into two comparative groups, namely Lichtenstein's and Transabdominal pre-peritoneal, and each group containing 51 participants. Hospital ethical committee approval and written informed consent from patients was obtained. Primarily, the duration of operation, post-operative pain and complication, and quality of life after surgery was compared between the two different approaches of hernia repair. RESULTS: The study results demonstrated a statistically significant superiority of trans abdominal pre-peritoneal repair over Lichtenstein's hernioplasty in terms of post operative pain (2.00+/-0.63 vs 3.90+/-0.74 VAS score, P value<0.001), hospital stay (2.33+/-0.62 vs 2.96+/-0.20 days, P value <0.001) and quality of life with early return to normal work (13.39+/-0.60 vs 17.88+/-0.86 days, P value <0.001); whereas a prolonged operative time was seen in transabdominal pre-peritoneal repair (96.08+/-27.08 vs 42.55+/-5.95 mins, P value <0.001). CONCLUSIONS: This study has shown that transabdominal pre-peritoneal repair is better than Lichtenstein's in respect to post-operative pain, quality of life and post-operative complication. However, it has prolonged operative duration than conventional method. PMID- 29016584 TI - Morbidities and Outcome of a Neonatal Intensive Care in Western Nepal. AB - BACKGROUND: Neonatal mortality rate of developing countries is declining over decades. In the recent years increasing number of preterm and high risk neonates have facilities for tertiary care treatment. The aim of the study was to assess the morbidities and outcome of neonatal intensive care admissions. METHODS: It was a retrospective observational study carried out in neonatal intensive care unit of the Manipal Teaching Hospital, Pokhara, Nepal from January 2014 to December 2015. Neonatal details including place of delivery, birth weight, gestation, diagnosis at admission, hospital course and final outcome were recorded in predesigned proforma. Risk of mortality was calculated using odds ratio and 95% confidence interval. RESULTS: There were total 1708 admission during study period and inborn as well as out born neonates were equally admitted. Neonatal hyperbilirubinemia (37.1%), neonatal sepsis 532 (31.2%), prematurity, 314 (18.4%) perinatal asphyxia 112 (6.6%), meconium aspiration syndrome 79 (4.6%) and intrauterine growth restriction 49 (2.8%) were main indications for hospitalization. A total of 1410 (82.6%) the patients were discharged after treatment, 167 (9.7) left against medical advice, 115 (6.7%) died in hospital and 16 (1%) cases were referred. Preterm neonates had twice the risk of mortality than term neonates (OR =2.1664). Birth weight < 2500 grams had three times more risk of neonatal mortality than normal birth weight (OR =3.0783). CONCLUSIONS: Neonatal hyperbilirubinemia, prematurity and neonatal sepsis were common morbidities inneonatal intensive care unit. PMID- 29016585 TI - Isolation of Multidrug Resistant Bacteria from Patients Medical Charts. AB - BACKGROUND: Patient's medical charts in hospitals are potentially contaminated by pathogenic bacteria and might act as vehicles for transmission of bacterial infections.This study was aimed to determine the rate of contamination of medical charts by multidrug resistant bacteria. METHODS: Sampling of total 250 patient's medical charts from different wards was done with the help of cotton swabs soaked in sterile normal saline. The swabs thus collected were cultured using standard microbiological procedures.The colonies grown were then identified with the help of colony morphology, Gram's stain and biochemical tests. Antimicrobial susceptibility testing was performed by using Kirby-Bauer disc diffusion technique. RESULTS: Of the total 250 charts sampled, 98.8% grew bacteria; Bacillus spp. in 40.7%, followed by Staphylococcus aureus (17%), coagulase negative Staphylococcus spp.(CoNS) (17%), Citrobacter freundii (9.6%) and Acinetobacter spp. (4.5%). Rate of multidrug resistance was highest in Acinetobacter spp. (50%). Among 83 isolates of S. aureus, methicillin resistance was found in 29 isolates. Similarly, two out of total 9 isolates of Enterococcus spp. were vancomycin resistant. CONCLUSIONS: This study showed that patient's medical charts were contaminated with multidrug resistant bacteria including methicillin resistant S. aureus and vancomycin resistant Enterococcus spp. Strict hand washing before and after handling medical charts is recommended. PMID- 29016587 TI - Bogota Bag in Abdominal Compartment Syndrome at Kathmandu Model Hospital. AB - BACKGROUND: The gold standard of quick and definitive treatment of Abdominal compartment syndrome (ACS) is surgical decompression by opening the abdomen and leaving it open until intra-abdominal pressure decreases. Temporary abdominal closure techniques are used to postpone definite closure until predisposing factors causing pathologic elevation of intra-abdominal pressure are resolved.This study aim to analyze feasibility of Bogota Bag placement as a way of temporary abdominal closure. METHODS: Cases admitted in the period of eight years that were diagnosed to have or at risk to develop ACS and managed with 'Bogota Bag', irrespective of primary diagnosis were reviewed retrospectively. Cause of ACS, reasons to place Bogota bag, its complications and final outcome in terms of mortality related or not related with Bogota Bag placement were assessed. RESULTS: Total of ten patients had placement of Bogota Bag in the period of eight years. Laparotomy for bowel perforation with peritonitis was the most common primary condition contributing to ACS. Bogota bag was placed in two cases after emergency decompression as a therapeutic measure whereas others were done as prophylactic measure. There were two mortalities (20%) which were not directly related to abdominal compartment syndrome. CONCLUSIONS: Abdomen closure with Bogota Bag for patients with ACS or likely to develop ACS is a feasible technique with minimal procedure related morbidities. PMID- 29016586 TI - Preference of Food-items and Physical Activity of Peri-urban Children in Bhaktapur. AB - BACKGROUND: Though cardiovascular diseases are mostly seen in adulthood, the foundation of diet and physical activity is largely formed during childhood. The study aimed to explore children's preference for diet and physical activity in a peri-urban area of Nepal because this is an important dimension to explore in the life-course approach to combat non-communicable diseases. METHODS: We conducted a cross-sectional study to enquire young peri-urban children of Duwakot and Jhaukhel villages of Bhaktapur district, Nepal on their preferences for diet and physical activity. All eligible households with children in the age range 5-10 years as enlisted from the Jhaukhel-Duwakot Health Demographic Surveillance Site database were selected for the study. Twelve enumerators visited the selected households and facilitated the eligible children to fill in the questionnaire. We used a child-friendly photo-assisted questionnaire with face-scales that easily enabled the children to select a particular preference for each of the food item and physical activity. During analysis, food items were categorized into 'green', 'yellow' and 'red' on the basis of their nutritive values. Physical activity was categorized based on severity of the activity. RESULTS: Four hundred and thirty seven children filled up the questionnaires. Overall, median preference scores for 'red' food were higher than for healthier 'green' food (4.16 vs. 4.03), particularly, if mothers were self-employed. Likewise, the children preferred low over moderate-to-severe physical activity (4.16 vs. 3.50), and preference was affected by parents' occupation and income. CONCLUSIONS: The study objectively revealed that most of the children preferred unhealthier food-items and low physical activities. It shall be useful to consider these findings while planning health promotional activities targeted at them. PMID- 29016588 TI - Mesiodens: A Hospital Based Study. AB - : Background: A mesiodens, is the most frequent supernumerary tooth present in the maxillary central incisor region. This study is conducted to know the radiographic characteristics and management of mesiodens in children visiting hospital. METHODS: A cross-sectional retrospective data collection was done from hospital dental records of children who visited the institution from December 2015-December 2016. Radiographic characteristic of mesiodens including the number, shape, position, direction of crown and complication caused by mesiodens were recorded. Data were analyzed using IBM SPSS v.20.0. RESULTS: Out of 1871 dental records, it was found that 40 children had 53 mesiodens, with male female ratio of 3:1 and most of them were discovered at 8 years. Majority of mesiodens, 54.7% were erupted, conical, palatally placed with 77.3% vertically directed crown.Complications associated with it were crowding followed by diastema and delayed eruption. Among 40 children, one had three mesiodens, eleven had two mesiodens and rest had one each. Radiographically fully formed tooth was seen in 29 mesiodens. Immature apex was seen in 38 central incisors associated with mesiodens. Management undertaken was simple/surgical extraction and only few cases were kept for periodic observation. CONCLUSIONS: Periodic radiographs act as an important tool for clinicians in detecting and managing mesiodens. PMID- 29016589 TI - Risk Factors Associated with Low Birth Weight among Deliveries at Bharatpur Hospital. AB - BACKGROUND: Babies with a birth weight of less than 2500 grams, irrespective of the period of their gestation are termed as Low Birth Weight (LBW) babies. Despite consistent efforts to improve the quality of maternal and child health, more than twenty million low birth-weight (LBW) babies are born every year throughout the world. Though, the health situation of Nepal has improved substantially over the years, the low birth-weight (LBW) rate is still high. The objective of this study was to assess the proportion of low birth weight and identify the associated factors for low birth weight in a live born infant among the institutionally delivered newborns. METHODS: A hospital based cross sectional study was conducted in Obstetrics and Gynaecology ward of Bharatpur hospital, Bharatpur, from 17th September to 4th October , 2012. Altogether 480 respondents were taken and respondents were mothers who had delivered newborns in Bharatpur hospital. RESULTS: A total of 480 births occurred during the study period, of which 480 met the study criteria. Among which 9.4% were low birth weight and 90.6% were normal birth weight .Overall mean birth weight was found to be 2.96 kg. Out of total 9.4% newborns were weighing less than 2.50 kg and mean birth weight 2.96kg. CONCLUSIONS: This study suggests that there were several factors interplaying which lead to LBW babies; which are age of mother at delivery,weight gain by mother during pregnancy, short, low body mass index and hyperemesis gravidarum was the strongest predictor in this study. PMID- 29016590 TI - Endoscopic Endonasal Transsphenoidal Approach to Pituitary Adenoma: A Multi disciplinary Approach. AB - BACKGROUND: The excellent visualization and minimally invasive approach employed in endoscopic endonasal procedures has now revolutionized the pituitary surgery, replacing the transnasal microscopic technique worldwide. However, it involves major shift in hand-eye co-ordination from static 3 dimensional images of microscope to 2 dimensional endoscopic images hence demands training and inter disciplinary approach. Here we present our experiences in learning and developing a safe endonasal transsphenoidal endoscopic approach to resect pituitary adenomas. METHODS: This prospective study was jointly conducted in the departments of ENT and Neurologicals surgery Kathmandu Medical College, Nepal, from September 2014 to August 2016. The endoscopic approach to the sphenoid sinus was performed by an Otolaryngologist and ablative surgery by Neurosurgeon. The ease of procedure, intra operative challenges, surgical cure, post-operative cerebro spinal fluid (CSF) leaks and postoperative complaints were analyzed. RESULTS: Sixteen consecutive patients with pituitary adenoma (macro adenoma=13, micro adenoma =3) were analyzed. There were three intraoperative CSF leak, managed successfully. Two patients developed transient diabetes insipidus and surgical cure rate was 90%. No case had to be switched over to traditional microscopic route due to technical failure. There was no mortality. CONCLUSIONS: The endoscopic endonasal transsphenoidal approach to pituitary tumors is a safe and minimally invasive procedure, which can be employed safely in any of our centers in Nepal, equipped with endoscopic sinus surgery and endoscopically trained ENT and Neurosurgeons. A multi disciplinary approach provides good access, greater tumor excision and excellent postoperative follow up. PMID- 29016591 TI - Caesarean Section During Second Stage of Labor in a Tertiary Centre. AB - BACKGROUND: There is an alarming rise in caesarean section leading to increased adverse outcomes for both the mother and fetus when compared with vaginal delivery. Within this increasing caesarean section rate, there is a concerning increase in the rate of second stage caesarean section. This study highlight the feto-maternal outcome of caesarean section in second stage of labour. METHODS: This was a retrospective cohort review of all women with a singleton, cephalic fetus at term delivered by caesarean section in the second stage of labor between April 1, 2013 and March 30, 2017 at Patan Academy of Health Sciences. The main outcome measures were second stage caesarean section, indications and its maternal and fetal morbidity. RESULTS: During the study period, there were 40,860 deliveries. A total of 18,011 (44%) babies were born by caesarean section, 10484 emergency and 7527 elective. Out of the emergency caesarean section, 200 (1.9 %) were performed in second stage of labor. In this study, the most common indication was cephalopelvic disproportion. (92.4%) were delivered without a trial of instrumental delivery. In terms of maternal complications, atonic post partum haemorrhage uterine incision extension 18 (12.5%), postoperative fever 27(18.8%), wound infection 7 (4.8%) were observed. In perinatal complications, meconium stained amniotic fluid 49(34.2%), neonatal hyperbilirubinemia 14(9.7%) and increased nursery admission 2(15.3%) and 2(1.3%) perinatal mortality were seen. CONCLUSIONS: Cesarean sections done in second stage of labor are associated with several intra-operative maternal complications and neonatal morbidity. PMID- 29016592 TI - Availability of Life Support Equipment and its Utilization by Ambulance Drivers. AB - BACKGROUND: An effective ambulance is a vital requirement for providing an emergency medical service. Well-equipped ambulances with trained paramedics can save many lives during the golden hours of trauma care. The objective was to document the availability and utilization of basic life support equipment in the ambulances and to assess knowledge on first aid among the drivers. METHODS: Descriptive design was used. Total of 109 ambulances linked to B.P. Koirala Institute of Health Sciences were enrolled using purposive sampling method. Self- constructed observation checklist and semi structured interview schedule was used for data collection. RESULTS: More than half of the respondents had less than five years of experience and were not trained in first aid. About two-third of the respondents had adequate knowledge on first aid. About 90% of the ambulance had oxygen cylinder and adult oxygen mask which was 'usually' used equipment. More than half of ambulance had equipment less than 23% as compared to that of national guidelines. There was significant association of knowledge with the experience (p = 0.004) and training (p = 0.001). Availability of equipment was associated with training received (p = 0.007),organization (p= 0.032)and district (p = 0.023) in which the ambulance is registered. CONCLUSIONS: The study concludes that maximum ambulance linked to BPKIHS, Nepal did not have even one fourth of the equipment for basic life support. Equipment usually used was oxygen cylinder and oxygen mask. Majority of driver had adequate knowledge on first aid and it was associated with training and experience. PMID- 29016593 TI - Dentists in Nepal: A Situation Analysis. AB - BACKGROUND: Human resource data is essential for planning and implementation of health care delivery system. However, very few information is available on dental health human resource in the country. The aim of study was to assess the number of dentists in the country and to explore their distribution according to demographic and professional characteristics. METHODS: A census was performed during July 2015 to July 2016 about the Nepali dentists. The study assessed demographic and professional characteristics of dentists including age, gender, ethnicity, education attainment, university, country/year of graduation, and work place using data collection sheet by trained data collectors. For those not accessible for direct contact, the information was obtained through secondary data. Data entry was done in CSPro software application and was analyzed in SPSS 20. RESULTS: The total number of registered Nepali dentists was 1803 with 419 specialists until June 2015. The male to female ratio was 1:1.46. Among all; 1318 (73%) were present in the country, 1047 (58%) were professionally active, and 1366 (76%) were below the age of 35 years. Among the professionals; 831 (79%) were employed in private sector and 601 (57%) worked in Kathmandu valley. CONCLUSIONS: The dentist-population ratio is decreasing exponentially in capital and major cities of Nepal however it remains very high in rural areas. Compared to other provinces,Province 6 and Province 7 lack service of dentists. PMID- 29016594 TI - Application of Ultraviolet Light in Dental Identification of Avalanche Victims. AB - In any disaster, it becomes important to identify the deceased for ethical, social and legal causes.Out of the numerous methods of identification, dental comparison is considered to be one of the scientific methods in a Disaster Victim Identification process. The two victims of avalanche in Nepal were identified using dental comparison. The two bodies brought for examination were unidentifiable visually. To aid identification of tooth coloured restorations, ultraviolet light was used. The ultraviolet light made the tooth coloured restorations appear distinct from the adjacent tooth structure in one of the cases. This helped in post-mortem charting of dental examination with greater accuracy. When the ante-mortem dental records and the post-mortem dental findings were compared, positive identification was made for both the cases. The bodies were then handed over to their respective kin. These cases highlighted the importance of ultraviolet light in post-mortem dental examination and the significance of forensic dentistry in identification process. PMID- 29016595 TI - Reporting of Medical Errors in Autopsied Cases. AB - This report describes the cases autopsied at B. P. Koirala Institute of Health Sciences- Nepal, during the period of two years in which the treatment provided falls below the accepted standard practice causing the death of the patient. Postmortem examination provides an opportunity to find out the actual cause of death in which the cause of death is suspicious. Sometimes the cause of death found through postmortem examination is different from the clinical cause of death. The autopsy finding on the cause of death will help doctors even to think about unusual conditions that lead to death and hence apply preventive measures for those unusual conditions. The cause of medical error is not always due to the doctor's mistake, but sometimes also due to the obsolete hospital protocol. The autopsy reporting of medical errors can be used to identify lacunae in hospital protocols, problem-prone clinical processes and suggest interventions that may reduce negligence. PMID- 29016596 TI - Experiences of operational costs of HPV vaccine delivery strategies in Gavi supported demonstration projects. AB - From 2012 to 2016, Gavi, the Vaccine Alliance, provided support for countries to conduct small-scale demonstration projects for the introduction of the human papillomavirus vaccine, with the aim of determining which human papillomavirus vaccine delivery strategies might be effective and sustainable upon national scale-up. This study reports on the operational costs and cost determinants of different vaccination delivery strategies within these projects across twelve countries using a standardized micro-costing tool. The World Health Organization Cervical Cancer Prevention and Control Costing Tool was used to collect costing data, which were then aggregated and analyzed to assess the costs and cost determinants of vaccination. Across the one-year demonstration projects, the average economic and financial costs per dose amounted to US$19.98 (standard deviation +/-12.5) and US$8.74 (standard deviation +/-5.8), respectively. The greatest activities representing the greatest share of financial costs were social mobilization at approximately 30% (range, 6-67%) and service delivery at about 25% (range, 3-46%). Districts implemented varying combinations of school based, facility-based, or outreach delivery strategies and experienced wide variation in vaccine coverage, drop-out rates, and service delivery costs, including transportation costs and per diems. Size of target population, number of students per school, and average length of time to reach an outreach post influenced cost per dose. Although the operational costs from demonstration projects are much higher than those of other routine vaccine immunization programs, findings from our analysis suggest that HPV vaccination operational costs will decrease substantially for national introduction. Vaccination costs may be decreased further by annual vaccination, high initial investment in social mobilization, or introducing/strengthening school health programs. Our analysis shows that drivers of cost are dependent on country and district characteristics. We therefore recommend that countries carry out detailed planning at the national and district levels to define a sustainable strategy for national HPV vaccine roll-out, in order to achieve the optimal balance between coverage and cost. PMID- 29016597 TI - The clinical utility and cost impact of cystatin C measurement in the diagnosis and management of chronic kidney disease: A primary care cohort study. AB - BACKGROUND: To reduce over-diagnosis of chronic kidney disease (CKD) resulting from the inaccuracy of creatinine-based estimates of glomerular filtration rate (GFR), UK and international guidelines recommend that cystatin-C-based estimates of GFR be used to confirm or exclude the diagnosis in people with GFR 45-59 ml/min/1.73 m2 and no albuminuria (CKD G3aA1). Whilst there is good evidence for cystatin C being a marker of GFR and risk in people with CKD, its use to define CKD in this manner has not been evaluated in primary care, the setting in which most people with GFR in this range are managed. METHODS AND FINDINGS: A total of 1,741 people with CKD G3a or G3b defined by 2 estimated GFR (eGFR) values more than 90 days apart were recruited to the Renal Risk in Derby study between June 2008 and March 2010. Using Chronic Kidney Disease Epidemiology Collaboration (CKD EPI) equations, we compared GFR estimated from creatinine (eGFRcreat), cystatin C (eGFRcys), and both (eGFRcreat-cys) at baseline and over 5 years of follow-up. We analysed the proportion of participants with CKD G3aA1 reclassified to 'no CKD' or more advanced CKD with the latter two equations. We further assessed the impact of using cystatin-C-based eGFR in risk prediction equations for CKD progression and all-cause mortality and investigated non-GFR determinants of eGFRcys. Finally, we estimated the cost implications of implementing National Institute for Health and Care Excellence (NICE) guidance to use eGFRcys to confirm the diagnosis in people classified as CKD G3aA1 by eGFRcreat. Mean eGFRcys was significantly lower than mean eGFRcreat (45.1 ml/min/1.73 m2, 95% CI 44.4 to 45.9, versus 53.6 ml/min/1.73 m2, 95% CI 53.0 to 54.1, P < 0.001). eGFRcys reclassified 7.7% (50 of 653) of those with CKD G3aA1 by eGFRcreat to eGFR >= 60 ml/min/1.73 m2. However, a much greater proportion (59.0%, 385 of 653) were classified to an eGFR category indicating more severe CKD. A similar pattern was seen using eGFRcreat-cys, but lower proportions were reclassified. Change in eGFRcreat and eGFRcys over 5 years were weakly correlated (r = 0.33, P < 0.001), but eGFRcys identified more people as having CKD progression (18.2% versus 10.5%). Multivariable analysis using eGFRcreat as an independent variable identified age, smoking status, body mass index, haemoglobin, serum uric acid, serum albumin, albuminuria, and C reactive protein as non-GFR determinants of eGFRcys. Use of eGFRcys or eGFRcreat-cys did not improve discrimination in risk prediction models for CKD progression and all-cause mortality compared to similar models with eGFRcreat. Application of the NICE guidance, which assumed cost savings, to participants with CKD G3aA1 increased the cost of monitoring by L23 per patient, which if extrapolated to be applied throughout England would increase the cost of testing and monitoring CKD by approximately L31 million per year. Limitations of this study include the lack of a measured GFR and the potential lack of ethnic diversity in the study cohort. CONCLUSIONS: Implementation of current guidelines on eGFRcys testing in our study population of older people in primary care resulted in only a small reduction in diagnosed CKD but classified a greater proportion as having more advanced CKD than eGFRcreat. Use of eGFRcys did not improve risk prediction in this population and was associated with increased cost. Our data therefore do not support implementation of these recommendations in primary care. Further studies are warranted to define the most appropriate clinical application of eGFRcys and eGFRcreat-cys. PMID- 29016598 TI - Quantifying underreporting of law-enforcement-related deaths in United States vital statistics and news-media-based data sources: A capture-recapture analysis. AB - BACKGROUND: Prior research suggests that United States governmental sources documenting the number of law-enforcement-related deaths (i.e., fatalities due to injuries inflicted by law enforcement officers) undercount these incidents. The National Vital Statistics System (NVSS), administered by the federal government and based on state death certificate data, identifies such deaths by assigning them diagnostic codes corresponding to "legal intervention" in accordance with the International Classification of Diseases-10th Revision (ICD-10). Newer, nongovernmental databases track law-enforcement-related deaths by compiling news media reports and provide an opportunity to assess the magnitude and determinants of suspected NVSS underreporting. Our a priori hypotheses were that underreporting by the NVSS would exceed that by the news media sources, and that underreporting rates would be higher for decedents of color versus white, decedents in lower versus higher income counties, decedents killed by non-firearm (e.g., Taser) versus firearm mechanisms, and deaths recorded by a medical examiner versus coroner. METHODS AND FINDINGS: We created a new US-wide dataset by matching cases reported in a nongovernmental, news-media-based dataset produced by the newspaper The Guardian, The Counted, to identifiable NVSS mortality records for 2015. We conducted 2 main analyses for this cross-sectional study: (1) an estimate of the total number of deaths and the proportion unreported by each source using capture-recapture analysis and (2) an assessment of correlates of underreporting of law-enforcement-related deaths (demographic characteristics of the decedent, mechanism of death, death investigator type [medical examiner versus coroner], county median income, and county urbanicity) in the NVSS using multilevel logistic regression. We estimated that the total number of law-enforcement-related deaths in 2015 was 1,166 (95% CI: 1,153, 1,184). There were 599 deaths reported in The Counted only, 36 reported in the NVSS only, 487 reported in both lists, and an estimated 44 (95% CI: 31, 62) not reported in either source. The NVSS documented 44.9% (95% CI: 44.2%, 45.4%) of the total number of deaths, and The Counted documented 93.1% (95% CI: 91.7%, 94.2%). In a multivariable mixed-effects logistic model that controlled for all individual- and county-level covariates, decedents injured by non-firearm mechanisms had higher odds of underreporting in the NVSS than those injured by firearms (odds ratio [OR]: 68.2; 95% CI: 15.7, 297.5; p < 0.01), and underreporting was also more likely outside of the highest-income-quintile counties (OR for the lowest versus highest income quintile: 10.1; 95% CI: 2.4, 42.8; p < 0.01). There was no statistically significant difference in the odds of underreporting in the NVSS for deaths certified by coroners compared to medical examiners, and the odds of underreporting did not vary by race/ethnicity. One limitation of our analyses is that we were unable to examine the characteristics of cases that were unreported in The Counted. CONCLUSIONS: The media-based source, The Counted, reported a considerably higher proportion of law-enforcement related deaths than the NVSS, which failed to report a majority of these incidents. For the NVSS, rates of underreporting were higher in lower income counties and for decedents killed by non-firearm mechanisms. There was no evidence suggesting that underreporting varied by death investigator type (medical examiner versus coroner) or race/ethnicity. PMID- 29016599 TI - Coronary collateralization shows sex and racial-ethnic differences in obstructive artery disease patients. AB - BACKGROUND: Coronary collateral circulation protects cardiac tissues from myocardial infarction damage and decreases sudden cardiac death. So far, it is unclear how coronary collateralization varies by race-ethnicity groups and by sex. METHODS: We assessed 868 patients with obstructive CAD. Patients were assessed for collateral grades based on Rentrop grading system, as well as other covariates. DNA samples were genotyped using the Affymetrix 6.0 genotyping array. To evaluate genetic contributions to collaterals, we performed admixture mapping using logistic regression with estimated local and global ancestry. RESULTS: Overall, 53% of participants had collaterals. We found difference between sex and racial-ethnic groups. Men had higher rates of collaterals than women (P-value = 0.000175). White Hispanics/Latinos showed overall higher rates of collaterals than African Americans and non-Hispanic Whites (59%, 50% and 48%, respectively, P value = 0.017), and especially higher rates in grade 1 and grade 3 collateralization than the other two populations (P-value = 0.0257). Admixture mapping showed Native American ancestry was associated with the presence of collaterals at a region on chromosome 17 (chr17:35,243,142-41,251,931, beta = 0.55, P-value = 0.000127). African ancestry also showed association with collaterals at a different region on chromosome 17 (chr17: 32,266,966-34,463,323, beta = 0.38, P-value = 0.00072). CONCLUSIONS: In our study, collateralization showed sex and racial-ethnic differences in obstructive CAD patients. We identified two regions on chromosome 17 that were likely to harbor genetic variations that influenced collateralization. PMID- 29016600 TI - General principles of binding between cell surface receptors and multi-specific ligands: A computational study. AB - The interactions between membrane receptors and extracellular ligands control cell-cell and cell-substrate adhesion, and environmental responsiveness by representing the initial steps of cell signaling pathways. These interactions can be spatial-temporally regulated when different extracellular ligands are tethered. The detailed mechanisms of this spatial-temporal regulation, including the competition between distinct ligands with overlapping binding sites and the conformational flexibility in multi-specific ligand assemblies have not been quantitatively evaluated. We present a new coarse-grained model to realistically simulate the binding process between multi-specific ligands and membrane receptors on cell surfaces. The model simplifies each receptor and each binding site in a multi-specific ligand as a rigid body. Different numbers or types of ligands are spatially organized together in the simulation. These designs were used to test the relation between the overall binding of a multi-specific ligand and the affinity of its cognate binding site. When a variety of ligands are exposed to cells expressing different densities of surface receptors, we demonstrated that ligands with reduced affinities have higher specificity to distinguish cells based on the relative concentrations of their receptors. Finally, modification of intramolecular flexibility was shown to play a role in optimizing the binding between receptors and ligands. In summary, our studies bring new insights to the general principles of ligand-receptor interactions. Future applications of our method will pave the way for new strategies to generate next-generation biologics. PMID- 29016601 TI - Firearm-Related Injury and Death: A U.S. Health Care Crisis in Need of Health Care Professionals. AB - The U.S.-based Editors of ICMJE journals call for health-care professionals to act against the public health crisis of injury and death from guns. PMID- 29016602 TI - Relationship between parenting stress and informant discrepancies on symptoms of ADHD/ODD and internalizing behaviors in preschool children. AB - Parent and teacher ratings of child behaviors are often discrepant, and these discrepancies may be correlated with parenting stress. The present study explored whether various parenting stress factors are associated with discrepancies between parent and teacher ratings of attention-deficit/hyperactivity disorder and oppositional defiant disorder (ODD) as well as internalizing symptoms in preschool children. We recruited 299 Taiwanese preschool children (aged 4-6 years) from the community or via clinical referrals. A structural equation modeling was used to analyze the relationships among three factors derived from the Parenting Stress Index-Short Form and informant discrepancies on symptoms of inattention, hyperactivity/impulsivity, ODD, and internalizing behaviors. Scores reported by parents were higher for each of the symptoms examined than those reported by teachers, and the degree of agreement between informants ranged from low to moderate. The parental distress factor of parenting stress was associated only with parent ratings, whereas other factors of parenting stress-parent-child dysfunctional interaction and parents' stress resulted from their child's temperament-were correlated with both parent and teacher ratings. Only parental distress factor predicted informant discrepancies for all behavioral symptoms assessed. Our findings suggest that parental distress should be considered when parent rating scores show significant discrepancies from that of teacher rating scores. PMID- 29016603 TI - Characterization of hepatitis B virus in Amerindian children and mothers from Amazonas State, Colombia. AB - BACKGROUND: Hepatitis B Virus (HBV) infection is a worldwide public health problem. In the 1980's a highly effective and safe vaccine against HBV was developed, although breakthrough infection still occasionally occurs because of the emergence of escape mutants. The aim of this study was to identify HBV genotypes and escape mutants in children and their mothers in Amerindian communities of the Amazonas State, Southern Colombia. METHODS: Blood specimens collected from children and mothers belonging to 37 Amerindian communities in Amazonas state, were screened for HBsAg and anti-HBc using ELISA. The partial region containing the S ORF was amplified by nested PCR, and amplicons were sequenced. The phylogenetic analysis was performed using the MEGA 5.05 software. RESULTS: Forty-six children (46/1275, 3.6%) and one hundred and seventy-seven mothers (177/572, 30.9%) were tested positive for the anti-HBc serological marker. Among them, 190 samples were tested for viral genome detection; 8.3% (2/31) serum samples obtained from children and 3.1% (5/159) from mothers were positive for the ORF S PCR. The predominant HBV genotype in the study population was F, subgenotype F1b; in addition, subgenotype F1a and genotype A were also characterized. Two HBV escape mutants were identified, G145R, reported worldwide, and W156*; this stop codon was identified in a child with occult HBV infection. Other mutations were found, L109R and G130E, located in critical positions of the HBsAg sequence. CONCLUSIONS: This study aimed to characterize the HBV genotype F, subgenotypes F1b and F1a, and genotype A in Amerindian communities and for the first time escape mutants in Colombia. Further investigations are necessary to elucidate the frequency and the epidemiological impact of the escape mutants in the country. PMID- 29016604 TI - Novel fine-scale aerial mapping approach quantifies grassland weed cover dynamics and response to management. AB - Invasive weeds threaten the biodiversity and forage productivity of grasslands worldwide. However, management of these weeds is constrained by the practical difficulty of detecting small-scale infestations across large landscapes and by limits in understanding of landscape-scale invasion dynamics, including mechanisms that enable patches to expand, contract, or remain stable. While high end hyperspectral remote sensing systems can effectively map vegetation cover, these systems are currently too costly and limited in availability for most land managers. We demonstrate application of a more accessible and cost-effective remote sensing approach, based on simple aerial imagery, for quantifying weed cover dynamics over time. In California annual grasslands, the target communities of interest include invasive weedy grasses (Aegilops triuncialis and Elymus caput medusae) and desirable forage grass species (primarily Avena spp. and Bromus spp.). Detecting invasion of annual grasses into an annual-dominated community is particularly challenging, but we were able to consistently characterize these two communities based on their phenological differences in peak growth and senescence using maximum likelihood supervised classification of imagery acquired twice per year (in mid- and end-of season). This approach permitted us to map weed dominated cover at a 1-m scale (correctly detecting 93% of weed patches across the landscape) and to evaluate weed cover change over time. We found that weed cover was more pervasive and persistent in management units that had no significant grazing for several years than in those that were grazed, whereas forage cover was more abundant and stable in the grazed units. This application demonstrates the power of this method for assessing fine-scale vegetation transitions across heterogeneous landscapes. It thus provides means for small scale early detection of invasive species and for testing fundamental questions about landscape dynamics. PMID- 29016605 TI - Cognitive impairment in hemodialysis patients: Implementation of cut-off values for the Montreal Cognitive Assessment (MoCA)-test for feasible screening. AB - OBJECTIVE: Reliable identification of cognitive impairment in hemodialysis patients is of utmost importance, as it is associated with poor outcomes including dialysis withdrawal and death. High prevalence of cognitive impairment has been demonstrated in several studies using brief screening instruments or neuropsychological test batteries. However, the relevance of cognitive impairment as well as the accuracy of screening procedures have never been studied in this patient population. METHODS: 151 chronic hemodialysis patients (mean age 65.78 +/ 14.88 years, 73,5% male) underwent cognitive testing under standardized conditions by the Montreal Cognitive Assessment (MoCA) and, in a second step, the Clinical Dementia Rating scale (CDR), an international standard to measure the severity of dementia. For calculating MoCA cut-off values on the basis of the CDR global score, receiver operator characteristics (ROC) analysis and c-statistic were applied. RESULTS: 49.0% of patients were categorized as 0.5 in the CDR global with memory being the predominantly affected domain (47.7% of patients scored >= 0.5). Youden's Index led to a threshold of 23.5 points for the MoCA test for optimal differentiation between cognitively normal (CDR global < 0.5) and impaired patients (CDR global >= 0.5) based on a sensitivity of approximately 99% and a specificity of approximately 74%. CONCLUSION: Interference of cognitive impairment with patients' independence and daily life was shown using the CDR for the first time in hemodialysis patients. A MoCA score of 23.5 points turned out as optimal threshold to differentiate between patients with and without functional impairment in the CDR, thereby paving the way for implementation of the MoCA test as a quick and thus highly feasible screening instrument for periodic testing in clinical routine. PMID- 29016606 TI - Neural coding in the visual system of Drosophila melanogaster: How do small neural populations support visually guided behaviours? AB - All organisms wishing to survive and reproduce must be able to respond adaptively to a complex, changing world. Yet the computational power available is constrained by biology and evolution, favouring mechanisms that are parsimonious yet robust. Here we investigate the information carried in small populations of visually responsive neurons in Drosophila melanogaster. These so-called 'ring neurons', projecting to the ellipsoid body of the central complex, are reported to be necessary for complex visual tasks such as pattern recognition and visual navigation. Recently the receptive fields of these neurons have been mapped, allowing us to investigate how well they can support such behaviours. For instance, in a simulation of classic pattern discrimination experiments, we show that the pattern of output from the ring neurons matches observed fly behaviour. However, performance of the neurons (as with flies) is not perfect and can be easily improved with the addition of extra neurons, suggesting the neurons' receptive fields are not optimised for recognising abstract shapes, a conclusion which casts doubt on cognitive explanations of fly behaviour in pattern recognition assays. Using artificial neural networks, we then assess how easy it is to decode more general information about stimulus shape from the ring neuron population codes. We show that these neurons are well suited for encoding information about size, position and orientation, which are more relevant behavioural parameters for a fly than abstract pattern properties. This leads us to suggest that in order to understand the properties of neural systems, one must consider how perceptual circuits put information at the service of behaviour. PMID- 29016607 TI - Incidence and severity of self-reported chemotherapy side effects in routine care: A prospective cohort study. AB - AIM: Chemotherapy side effects are often reported in clinical trials; however, there is little evidence about their incidence in routine clinical care. The objective of this study was to describe the frequency and severity of patient reported chemotherapy side effects in routine care across treatment centres in Australia. METHODS: We conducted a prospective cohort study of individuals with breast, lung or colorectal cancer undergoing chemotherapy. Side effects were identified by patient self-report. The frequency, prevalence and incidence rates of side effects were calculated by cancer type and grade, and cumulative incidence curves for each side effect computed. Frequencies of side effects were compared between demographic subgroups using chi-squared statistics. RESULTS: Side effect data were available for 449 eligible individuals, who had a median follow-up of 5.64 months. 86% of participants reported at least one side effect during the study period and 27% reported a grade IV side effect, most commonly fatigue or dyspnoea. Fatigue was the most common side effect overall (85%), followed by diarrhoea (74%) and constipation (74%). Prevalence and incidence rates were similar across side effects and cancer types. Age was the only demographic factor associated with the incidence of side effects, with older people less likely to report side effects. CONCLUSION: This research has produced the first Australian estimates of self-reported incidence of chemotherapy side effects in routine clinical care. Chemotherapy side effects in routine care are common, continue throughout chemotherapy and can be serious. This work confirms the importance of observational data in providing clinical practice-relevant information to decision-makers. PMID- 29016608 TI - Military service, deployments, and exposures in relation to amyotrophic lateral sclerosis survival. AB - BACKGROUND: Military veterans may have higher rates of amyotrophic lateral sclerosis (ALS) mortality than non-veterans. Few studies, with sparse exposure information and mixed results, have studied relationships between military related factors and ALS survival. We evaluated associations between military related factors and ALS survival among U.S. military veteran cases. METHODS: We followed 616 medical record-confirmed cases from enrollment (2005-2010) in the Genes and Environmental Exposures in Veterans with Amyotrophic Lateral Sclerosis study until death or July 25, 2013, whichever came first. We ascertained vital status information from several sources within the Department of Veterans Affairs. We obtained information regarding military service, deployments, and 39 related exposures via standardized telephone interviews. We used Cox proportional hazards regression models to estimate hazard ratios (HRs) and 95% confidence intervals. We adjusted for potential confounding and missing covariate data biases via inverse probability weights. We also used inverse probability weights to adjust for potential selection bias among a case group that included a disproportionate number of long-term survivors at enrollment. RESULTS: We observed 446 deaths during 24,267 person-months of follow-up (median follow-up: 28 months). Survival was shorter for cases who served before 1950, were deployed to World War II, or mixed and applied burning agents, with HRs between 1.58 and 2.57. Longer survival was associated with exposure to: paint, solvents, or petrochemical substances; local food not provided by the Armed Forces; or burning agents or Agent Orange in the field with HRs between 0.56 and 0.73. CONCLUSIONS: Although most military-related factors were not associated with survival, associations we observed with shorter survival are potentially important because of the large number of military veterans. PMID- 29016610 TI - Association between a 17-gene genomic prostate score and multi-parametric prostate MRI in men with low and intermediate risk prostate cancer (PCa). AB - BACKGROUND: We aimed to directly compare results from multi-parametric prostate MRI (mpMRI) and a biopsy-based 17-gene RT-PCR assay providing a Genomic Prostate Score (GPS) among individuals who were candidates for active surveillance with low and intermediate risk prostate cancer (PCa). PATIENTS AND METHODS: We evaluated the association between GPS results (scale 0-100) and endorectal mpMRI findings in men with clinically localized PCa. MR studies were reviewed to a five tier scale of increasing suspicion of malignancy. Mean apparent diffusion coefficient (ADC) was calculated from a single dominant lesion. Mean rank of the GPS (0-100) among MRI strata was compared with the Kruskal-Wallis test and Dunn's multiple comparison test. Spearman's correlation was performed to examine the association between mean ADC and scaled GPS. RESULTS: Of 186 patients who received GPS testing, 100 were identified who received mpMRI. Mean GPS results differed between mpMRI categories (p = 0.001); however a broad range was observed in all mpMRI categories. Among men with biopsy Gleason pattern 3+3, mean GPS results were not significantly different among MRI groups (p = 0.179), but GPS differences were seen among MRI categories for patients with pattern 3+4 (p = 0.010). Mean ADC was weakly associated with GPS (sigma = -0.151). Stromal response (p = 0.015) and cellular organization (p = 0.045) gene group scores differed significantly by MRI findings, but no differences were seen among androgen signaling or proliferation genes. CONCLUSIONS: Although a statistically significant association was observed between GPS results and MRI scores, a wide range of GPS values were observed across imaging categories suggesting that mpMRI and genomic profiling may offer non- overlapping clinical insights. PMID- 29016609 TI - Galectin-3 alters the lateral mobility and clustering of beta1-integrin receptors. AB - Glycoprotein receptors are influenced by myriad intermolecular interactions at the cell surface. Specific glycan structures may interact with endogenous lectins that enforce or disrupt receptor-receptor interactions. Glycoproteins bound by multivalent lectins may form extended oligomers or lattices, altering the lateral mobility of the receptor and influencing its function through endocytosis or changes in activation. In this study, we have examined the interaction of Galectin-3 (Gal-3), a human lectin, with adhesion receptors. We measured the effect of recombinant Gal-3 added exogenously on the lateral mobility of the alpha5beta1 integrin on HeLa cells. Using single-particle tracking (SPT) we detected increased lateral mobility of the integrin in the presence of Gal-3, while its truncated C-terminal domain (Gal-3C) showed only minor reductions in lateral mobility. Treatment of cells with Gal-3 increased beta1-integrin mediated migration with no apparent changes in viability. In contrast, Gal-3C decreased both cell migration and viability. Fluorescence microscopy allowed us to confirm that exogenous Gal-3 resulted in reorganization of the integrin into larger clusters. We used a proteomics analysis to confirm that cells expressed endogenous Gal-3, and found that addition of competitive oligosaccharide ligands for the lectin altered the lateral mobility of the integrin. Together, our results are consistent with a Gal-3-integrin lattice model of binding and confirm that the lateral mobility of integrins is natively regulated, in part, by galectins. PMID- 29016611 TI - The high-pathogenicity island (HPI) promotes flagellum-mediated motility in extraintestinal pathogenic Escherichia coli. AB - The key of success of extraintestinal pathogenic Escherichia coli (ExPEC) to colonize niches outside the intestinal tract and to establish infection is the coordinated action of numerous virulence and fitness factors. The so-called high pathogenicity island (HPI), responsible for synthesis, secretion and uptake of the siderophore yersiniabactin, proved to be an important virulence determinant. In this study we investigated the interaction of the flagellum-mediated motility and the HPI. The impairment of yersiniabactin production by deletion of irp2 or ybtA affected significantly motility. The gain of yersiniabactin production improved motility in both pathogenic and non-pathogenic E. coli strains. The loss of flagella expression had no adverse effect on the HPI. Strikingly, external iron abundance was not able to suppress activation of the HPI during motility. The HPI activity of swarming bacteria was comparable to iron deplete conditions, and could even be maximized by supplementing excessive iron. This fact is the first description of a regulatory mechanism, which does not follow the known hierarchical regulation of siderophore systems. Transcriptional reporter fusions of the ybtA promoter demonstrated that the entire promoter region with all YbtA binding sites is necessary for complete induction in both HPI-positive and HPI negative strains. Altogether, these results suggest that the HPI is part of a complex regulatory network, which orchestrates various virulence mechanisms to optimize the overall fitness of ExPEC. PMID- 29016612 TI - The influence of anonymous peers on prosocial behavior. AB - BACKGROUND: Peer influence on students' maladaptive behaviors has been well documented; however, the influence on positive development is less acknowledged. PURPOSE: The purpose of this study was to examine anonymous peer influence on college students' prosocial behavior, specifically behavior for the improvement of society (i.e., donating money or participating in social campaigns) via an experimental approach. The effects of indirect peer influence (IP) and direct peer influence (DP) on college students' prosocial behavior were examined. METHODS: A total of 125 college students participated in an online survey and laboratory experiment. Self-reported helping behavior, social concern goals, and empathy were measured by the online survey. In the laboratory experiments, reading of a prosocial paragraph (IP) and confederates' prosocial behavior (DP) were manipulated. Participation in a signature campaign and money donation for illness were observed. Furthermore, 19 participants among those who donated were asked about their reasons for participating in such prosocial behavior. RESULTS: Prosocial behavior of anonymous peers (confederates) exerts a profound influence on college students' participation in a signature campaign and money donation, whereas the reading of a prosocial paragraph has no effect. Furthermore, no participants reported peer influence as a reason for engaging in prosocial behavior. CONCLUSION: This finding supports and extends recent research examining the positive impacts of anonymous peers on prosocial behavior. Prosocial behavior is not only a foundational and consistent aspect of personality, as previous studies report, but is also highly malleable and unstable in response to immediate situations. PMID- 29016614 TI - Patterns and rates of abdominal lymphatic metastasis following esophageal carcinoma. AB - AIM: To determine the rate of abdominal lymph node metastasis after radical surgery for esophageal cancer and define the radiotherapy target area. METHODS: Of the 1593 patients who underwent R0 radical esophagectomy for thoracic esophageal squamous cell carcinoma (TE-SCC), 148 developed abdominal lymph node (LN) metastases within three years of surgery. During that time interval, patients were examined by various imaging methods (enhanced computer tomography, magnetic resonance imaging, and positron emission tomography-CT) at set time points. The emerging recurrence pattern, preferred sites for abdominal metastasis, and correlation with added clinical factors were carefully recorded, to permit for delineation of a target area for radiotherapy. RESULTS: We found postoperative metastatic abdominal LNs in 9.3% of the patients treated for esophageal cancer. Lesions in the upper, middle, and lower esophageal segments metastasized to abdominal LNs at 2.3%, 7.8%, and 26.6% (P < 0.0001), respectively. Of all cases, 4.8% had fewer than two affected LNs, while 20.1% had more than three metastatic LNs (P< 0.0001). The metastasis rates of negative and positive celiac LNs were 4.6% and 22.7%, respectively. Abdominal LN metastasis rates for the following LNs: 16a2 and 16a1 of para-aortic, celiac artery, posterior surface of the pancreatic head and common hepatic artery were 64.9%, 41.2%, 37.8%, 32.4%, and 20.9%, respectively. The overall rate of metastasis to these groups of LNs was 91.9%. CONCLUSION: This study determined that stations 16a1 and 16a2 of the para-aortic, truncus coeliacus, posterior surface of the pancreatic head, and arteria hepatica communis lymph nodes were the preferred sites for abdominal LN metastasis, thus defining target areas for postoperative radiotherapy. PMID- 29016613 TI - Quantification of carious pathogens in the interdental microbiota of young caries free adults. AB - BACKGROUND: The majority of caries lesions in adults occur on the proximal tooth surfaces of the posterior teeth. A comprehensive study of the composition of the oral microbiota is fundamental for a better understanding of the etiology of interdental caries. METHODS: Twenty-five caries-free subjects (20-35 years old) were enrolled in the study. The interdental biofilm of four interdental sites were collected. The real-time polymerase chain reaction (PCR) methodology were used to quantify (i) the following bacteria: Streptococcus spp., Streptococcus mutans, Lactobacillus spp., Enterococcus spp., and Enterococcus faecalis; (ii) the fungus Candida albicans; and (iii) total bacteria. RESULTS: Streptococcus spp. was the most abundant species, followed by Lactobacillus spp. and Enterococcus spp. Streptococcus spp. and Lactobacillus spp. were detected at all tested sites and Enterococcus spp. at 99% of sites. S. mutans was detected at only 28% of the tested sites and C. albicans was detected at 11% of sites. E. faecalis was never detected. In 54.5% of the biofilm inhabited by C. albicans, S. mutans was present. Moreover, 28% of the ID sites co-expressed S. mutans and Lactobacillus spp. The studied pathogens were organized into two correlated groups of species. Strikingly, the fungus C. albicans and the bacteria Enterococcus spp. cluster together, whereas Streptococcus spp., S. mutans and Lactobacillus spp. form one distinct cluster. CONCLUSION: The interdental biofilm of young caries-free adults is comprised of pathogens that are able to induce interproximal caries. That several of these pathogens are implicated in heart disease or other systemic diseases is an argument for the disruption of interdental biofilms using daily oral hygiene. PMID- 29016615 TI - Characterization of the Rotating Exercise Quantification System (REQS), a novel Drosophila exercise quantification apparatus. AB - Obesity is a disease that has reached epidemic proportions in the United States and has prompted international legislation in an attempt to curtail its prevalence. Despite the fact that one of the most prescribed treatment options for obesity is exercise, the genetic mechanisms underlying exercise response in individuals are still largely unknown. The fruit fly Drosophila melanogaster is a promising new model for studying exercise genetics. Currently, the lack of an accurate method to quantify the amount of exercise performed by the animals is limiting the utility of the Drosophila model for exercise genetics research. To address this limitation, we developed the Rotational Exercise Quantification System (REQS), a novel apparatus that is able to simultaneously induce exercise in flies while recording their activity levels. Thus, the REQS provides a method to standardize Drosophila exercise and ensure that all animals irrespective of genotype and sex experience the same level of exercise. Here, we provide a basic characterization of the REQS, validate its measurements using video-tracking technology, illustrate its potential use by presenting a comparison of two different exercise regimes, and demonstrate that it can be used to detect genotype-dependent variation in activity levels. PMID- 29016617 TI - MicroRNA-193a inhibits breast cancer proliferation and metastasis by downregulating WT1. AB - In many cancers, microRNA-193a (miR-193a) is a suppressor miRNA, but its underlying anti-oncogenic activity in breast cancer is not known. In this study, we found decreased miR-193a (specifically, miR-193a-5p) expression not only in breast cancer cell lines but also in breast cancer tissues as compared with the adjacent non-tumor tissues. Ectopic miR-193a overexpression inhibited the proliferation, colony formation, migration, and invasion of MDA-MB-231 and BT549 cells. miR-193a reduced Wilms' tumor 1 (WT1) expression and repressed luciferase reporter activity by binding WT1 coding region sequences; mutation of the predicted miR-193a binding site abolished this effect. miR-193a and WT1 expression were significantly inversely correlated in breast cancer tissues. Importantly, the anti-cancer activity induced by miR-193a was partially reversed by WT1 overexpression, indicating an important role for WT1 in such activity related to miR-193a. Our results reveal that miR-193a-WT1 interaction plays an important role in breast cancer metastasis, and suggest that restoring miR-193a expression is a therapeutic strategy in breast cancer. PMID- 29016616 TI - A meta-analysis comparing tenotomy and tenodesis for treating rotator cuff tears combined with long head of the biceps tendon lesions. AB - PURPOSE: The purpose of this meta-analysis was to assess whether there were differences in the outcomes between tenotomy and tenodesis in treating LHBT lesions combined with rotator cuff repairs. METHODS: Using Medline, Embase, and Cochrane, we searched for articles comparing tenotomy and tenodesis combined with rotator cuff repair which were published before April 2016 with the terms "biceps", "tenotomy", "tenodesis", and "rotator cuff". The controlled clinical studies that met the inclusion and exclusion criteria were assessed for quality of methodology by utilizing the Coleman score. RESULTS: On the basis of the inclusion and exclusion criteria, ten articles (903 patients) were included in this meta-analysis. The Coleman score ranged between 40 and 89 in the included studies. The results showed that the incidence of the popeye sign (OR, 2.777, P = 0.000) were higher in tenotomy group compared with tenodesis group when concomitant rotator cuff repair. Statistically significant difference in favor of tenodesis was observed for Constant score (SMD, -0.230, P = 0.025). As for the arm cramping pain, patient satisfaction, VAS score, ASES score and UCLA increased score, the strength and the range of motion, there were no significant differences between tenodesis and tenotomy of the LHBT, corresponding to the currently available results in the literature. CONCLUSIONS: Based on this meta analysis, both tenotomy and tenodesis are effective in pain relief and function improvement in patients with repairable rotator cuff tears. No significant differences in post-operative functional outcome between tenotomy and tenodesis for the treatment of LHBT lesions were observed except for a lower Constant score and higher risk of Popeye deformity in tenotomy. PMID- 29016618 TI - Nigrosome 1 visibility at susceptibility weighted 7T MRI-A dependable diagnostic marker for Parkinson's disease or merely an inconsistent, age-dependent imaging finding? AB - BACKGROUND: Visualisation of nigrosome 1, a substructure of the healthy substantia nigra, was restricted in susceptibility weighted MR imaging in almost all patients with Parkinson's disease studied so far. The purpose of this study was to determine the degree of visibility of this substructure in subjects without Parkinson's disease and to examine the potential link between increasing brain iron accumulation with age and its detectability. METHODS: In 46 subjects (21 women, 25 men; 19 to 75 y; mean age: 44.5; SD: 15.6) examined with susceptibility weighted MR imaging at 7T visibility of nigrosome 1 was rated and classified. We assessed differences related to age and to signal intensities in the substantia nigra, red nucleus and putamen as correlates of the individual iron concentration. RESULTS: In 93% nigrosome 1was at least unilaterally clearly present. In 24% at least one-sided limited visibility was observed. Using predefined classification criteria the specificity of the visibility across all age groups reached approximately 94%. We found no correlation with increasing iron concentrations with age. CONCLUSION: Aging with a related increase in iron concentration probably does not affect the visibility of nigrosome 1 at 7T SWI MRI. Our results support the role of this feature as a future differential diagnostic tool but further large-scale prospective studies are needed to better define the extent of a "limited visibility" to which an individual can be considered healthy. PMID- 29016619 TI - Tuberculosis mortality and the male survival deficit in rural South Africa: An observational community cohort study. AB - BACKGROUND: Women live on average five years longer than men, and the sex difference in longevity is typically lower in populations with high mortality. South Africa-a high mortality population with a large sex disparity-is an exception, but the causes of death that contribute to this difference are not well understood. METHODS: Using data from a demographic surveillance system in rural KwaZulu-Natal (2000-2014), we estimate differences between male and female adult life expectancy by HIV status. The contribution of causes of death to these life expectancy differences are computed with demographic decomposition techniques. Cause of death information comes from verbal autopsy interviews that are interpreted with the InSilicoVA tool. RESULTS: Adult women lived an average of 10.4 years (95% confidence Interval 9.0-11.6) longer than men. Sex differences in adult life expectancy were even larger when disaggregated by HIV status: 13.1 (95% confidence interval 10.7-15.3) and 11.2 (95% confidence interval 7.5-14.8) years among known HIV negatives and positives, respectively. Elevated male mortality from pulmonary tuberculosis (TB) and external injuries were responsible for 43% and 31% of the sex difference in life expectancy among the HIV negative population, and 81% and 16% of the difference among people living with HIV. CONCLUSIONS: The sex differences in adult life expectancy in rural KwaZulu-Natal are exceptionally large, atypical for an African population, and largely driven by high male mortality from pulmonary TB and injuries. This is the case for both HIV positive and HIV negative men and women, signalling a need to improve the engagement of men with health services, irrespective of their HIV status. PMID- 29016620 TI - The EASI model: A first integrative computational approximation to the natural history of COPD. AB - The natural history of chronic obstructive pulmonary disease (COPD) is still not well understood. Traditionally believed to be a self-inflicted disease by smoking, now we know that not all smokers develop COPD, that other inhaled pollutants different from cigarette smoke can also cause it, and that abnormal lung development can also lead to COPD in adulthood. Likewise, the inflammatory response that characterizes COPD varies significantly between patients, and not all of them perceive symptoms (mostly breathlessness) similarly. To investigate the variability and determinants of different "individual natural histories" of COPD, we developed a theoretical, multi-stage, computational model of COPD (EASI) that integrates dynamically and represents graphically the relationships between exposure (E) to inhaled particles and gases (smoking), the biological activity (inflammatory response) of the disease (A), the severity (S) of airflow limitation (FEV1) and the impact (I) of the disease (breathlessness) in different clinical scenarios. EASI shows that the relationships between E, A, S and I vary markedly within individuals (through life) and between individuals (at the same age). It also helps to delineate some potentially relevant, but often overlooked concepts, such as disease progression, susceptibility to COPD and issues related to symptom perception. In conclusion, EASI is an initial conceptual model to interpret the longitudinal and cross-sectional relationships between E, A, S and I in different clinical scenarios. Currently, it does not have any direct clinical application, thus it requires experimental validation and further mathematical development. However, it has the potential to open novel research and teaching alternatives. PMID- 29016622 TI - Manganese acquisition is facilitated by PilA in the cyanobacterium Synechocystis sp. PCC 6803. AB - Manganese is an essential element required by cyanobacteria, as it is an essential part of the oxygen-evolving center of photosystem II. In the presence of atmospheric oxygen, manganese is present as manganese oxides, which have low solubility and consequently provide low bioavailability. It is unknown if cyanobacteria are able to utilize these manganese sources, and what mechanisms may be employed to do so. Recent evidence suggests that type IV pili in non photosynthetic bacteria facilitate electron donation to extracellular electron acceptors, thereby enabling metal acquisition. Our present study investigates whether PilA1 (major pilin protein of type IV pili) enables the cyanobacterium Synechocystis PCC 6808 to access to Mn from manganese oxides. We present physiological and spectroscopic data, which indicate that the presence of PilA1 enhances the ability of cyanobacteria to grow on manganese oxides. These observations suggest a role of PilA1-containing pili in cyanobacterial manganese acquisition. PMID- 29016621 TI - Epidemic dispersion of HIV and HCV in a population of co-infected Romanian injecting drug users. AB - Co-infections with HIV and HCV are very frequent among people who inject drugs (PWID). However, very few studies comparatively reconstructed the transmission patterns of both viruses in the same population. We have recruited 117 co infected PWID during a recent HIV outbreak in Romania. Phylogenetic analyses were performed on HIV and HCV sequences in order to characterize and compare transmission dynamics of the two viruses. Three large HIV clusters (2 subtype F1 and one CRF14_BG) and thirteen smaller HCV transmission networks (genotypes 1a, 1b, 3a, 4a and 4d) were identified. Eighty (65%) patients were both in HIV and HCV transmission chains and 70 of those shared the same HIV and HCV cluster with at least one other patient. Molecular clock analysis indicated that all identified HIV clusters originated around 2006, while the origin of the different HCV clusters ranged between 1980 (genotype 1b) and 2011 (genotypes 3a and 4d). HCV infection preceded HIV infection in 80.3% of cases. Coincidental transmission of HIV and HCV was estimated to be rather low (19.65%) and associated with an outbreak among PWID during detention in the same penitentiary. This study has reconstructed and compared the dispersion of these two viruses in a PWID population. PMID- 29016623 TI - Time frequency analysis of olfactory induced EEG-power change. AB - OBJECTIVES: The objective of the present study was to investigate the usefulness of time-frequency analysis (TFA) of olfactory-induced EEG change with a low-cost, portable olfactometer in the clinical investigation of smell function. MATERIALS & METHODS: A total of 78 volunteers participated. The study was composed of three parts where olfactory stimuli were presented using a custom-built olfactometer. Part I was designed to optimize the stimulus as well as the recording conditions. In part II EEG-power changes after olfactory/trigeminal stimulation were compared between healthy participants and patients with olfactory impairment. In Part III the test-retest reliability of the method was evaluated in healthy subjects. RESULTS: Part I indicated that the most effective paradigm for stimulus presentation was cued stimulus, with an interstimulus interval of 18-20s at a stimulus duration of 1000ms with each stimulus quality presented 60 times in blocks of 20 stimuli each. In Part II we found that central processing of olfactory stimuli analyzed by TFA differed significantly between healthy controls and patients even when controlling for age. It was possible to reliably distinguish patients with olfactory impairment from healthy individuals at a high degree of accuracy (healthy controls vs anosmic patients: sensitivity 75%; specificity 89%). In addition we could show a good test-retest reliability of TFA of chemosensory induced EEG-power changes in Part III. CONCLUSIONS: Central processing of olfactory stimuli analyzed by TFA reliably distinguishes patients with olfactory impairment from healthy individuals at a high degree of accuracy. Importantly this can be achieved with a simple olfactometer. PMID- 29016624 TI - Unusually high coral recruitment during the 2016 El Nino in Mo'orea, French Polynesia. AB - The negative implications of the thermal sensitivity of reef corals became clear with coral bleaching throughout the Caribbean in the 1980's, and later globally, with the severe El Nino of 1998 and extensive seawater warming in 2005. These events have substantially contributed to declines in coral cover, and therefore the El Nino of 2016 raised concerns over the implications for coral reefs; on the Great Barrier Reef these concerns have been realized. A different outcome developed in Mo'orea, French Polynesia, where in situ seawater temperature from 15 March 2016 to 15 April 2016 was an average of 0.4 degrees C above the upper 95% CI of the decadal mean temperature, and the NOAA Degree Heating Weeks (DHW) metric supported a Level 1 bleaching alert (DHW >= 4.0). Starting 1 September 2016 and for the rest of the year (122 d), in situ seawater temperature was an average of 0.4 degrees C above the 95% CI of long-term values, although DHW remained at zero. Minor coral bleaching (0.2-2.6% of the coral) occurred on the outer reef (10-m and 17-m depth) in April 2016, by May 2016 it had intensified to affect 1.3-16.8% of the coral, but by August 2016, only 1.4-3.0% of the coral was bleached. Relative to the previous decade, recruitment of scleractinians to settlement tiles on the outer- (10 m) and back- (2 m) reef over 2016/17 was high, both from January 2016 to August 2016, and from August 2016 to January 2017, with increased relative abundances of pocilloporids on the outer reef, and acroporids in the back reef. The 2016 El Nino created a distinctive signature in seawater temperature for Mo'orea, but it did not cause widespread coral bleaching or mortality, rather, it was associated with high coral recruitment. While the 2016 El Nino has negatively affected other coral reefs in the Indo-Pacific, the coral communities of Mo'orea continue to show signs of resilience, thus cautioning against general statements regarding the effects of the 2015/16 El Nino on coral reefs in the region. PMID- 29016625 TI - State-dependent metabolic partitioning and energy conservation: A theoretical framework for understanding the function of sleep. AB - Metabolic rate reduction has been considered the mechanism by which sleep conserves energy, similar to torpor or hibernation. This mechanism of energy savings is in conflict with the known upregulation (compared to wake) of diverse functions during sleep and neglects a potential role in energy conservation for partitioning of biological operations by behavioral state. Indeed, energy savings as derived from state-dependent resource allocations have yet to be examined. A mathematical model is presented based on relative rates of energy deployment for biological processes upregulated during either wake or sleep. Using this model, energy savings from sleep-wake cycling over constant wakefulness is computed by comparing stable limit cycles for systems of differential equations. A primary objective is to compare potential energy savings derived from state-dependent metabolic partitioning versus metabolic rate reduction. Additionally, energy conservation from sleep quota and the circadian system are also quantified in relation to a continuous wake condition. As a function of metabolic partitioning, our calculations show that coupling of metabolic operations with behavioral state may provide comparatively greater energy savings than the measured decrease in metabolic rate, suggesting that actual energy savings derived from sleep may be more than 4-fold greater than previous estimates. A combination of state dependent metabolic partitioning and modest metabolic rate reduction during sleep may enhance energy savings beyond what is achievable through metabolic partitioning alone; however, the relative contribution from metabolic partitioning diminishes as metabolic rate is decreased during the rest phase. Sleep quota and the circadian system further augment energy savings in the model. Finally, we propose that state-dependent resource allocation underpins both sleep homeostasis and the optimization of daily energy conservation across species. This new paradigm identifies an evolutionary selective advantage for the upregulation of central and peripheral biological processes during sleep, presenting a unifying construct to understand sleep function. PMID- 29016626 TI - Effectiveness of proton pump inhibitor in unexplained chronic cough. AB - BACKGROUND: Current guidelines recommend that patients with unexplained chronic cough undergo empirical proton pump inhibitor (PPI) treatment, but scientific evidence for this treatment is lacking. We investigated the effectiveness and appropriate dose of PPI therapy in chronic cough. METHODS: We included 27 patients with unexplained chronic cough after excluding subjects with positive response to postnasal drip medication. Subjects were randomized to a placebo, standard, and high dose of PPI groups with blinding. The drug or placebo was administered orally for 8 weeks, and the Leicester Cough Questionnaire (LCQ) score and visual analogue scale (VAS) scores were collected. RESULTS: The LCQ score in the PPI group significantly improved from 0 weeks (11.4 +/- 1.4) to 4 weeks (14.8 +/- 1.4) and to 8 weeks (17.1 +/- 1.4), whereas that in the placebo group did not improve from 0 weeks (13.7 +/- 1.1) to 8 weeks (11.8 +/- 1.4); the difference between the 2 groups was significant (P < 0.001). In subgroup analysis according to reflux, significant improvements in the LCQ score were observed in the PPI group regardless of reflux (P < 0.001 in the reflux group and P < 0.001 in the no reflux group, respectively; P = 0.188 between the 2 groups). In addition, improvements in LCQ and VAS scores between the standard- and high-dose PPI groups were not significantly different; however, adverse reactions were induced by only the high dose (16.7%). CONCLUSIONS: The results of this pilot study support the empirical use of the standard dose of PPI for 8 weeks in patients suffering from unexplained chronic cough regardless of whether reflux is present. TRIAL REGISTRATION: ClinicalTrial.gov NCT01888549 www.clinicaltrials.gov; cris.nih.go.kr KCT0000543 cris.nih.go.kr/. PMID- 29016627 TI - Cost-effectiveness analysis of treatment with non-curative or palliative intent for hepatocellular carcinoma in the real-world setting. AB - Hepatocellular carcinoma (HCC) presentation is heterogeneous necessitating a variety of therapeutic interventions with varying efficacies and associated prognoses. Poor prognostic patients often undergo non-curative palliative interventions including transarterial chemoembolization (TACE), sorafenib, chemotherapy, or purely supportive care. The decision to pursue one of many palliative interventions for HCC is complex and an economic evaluation comparing these interventions has not been done. This study evaluates the cost effectiveness of non-curative palliative treatment strategies such as TACE alone or TACE+sorafenib, sorafenib alone, and non-sorafenib chemotherapy compared with no treatment or best supportive care (BSC) among patients diagnosed with HCC between 2007 and 2010 in a Canadian setting. Using person-level data, we estimated effectiveness in life years and quality-adjusted life years (QALYs) along with total health care costs (2013 US dollars) from the health care payer's perspective (3% annual discount). A net benefit regression approach accounting for baseline covariates with propensity score adjustment was used to calculate incremental net benefit to generate incremental cost-effectiveness ratio (ICER) and uncertainty measures. Among 1,172 identified patients diagnosed with HCC, 4.5%, 7.9%, and 5.6%, received TACE alone or TACE+sorafenib, sorafenib, and non sorafenib chemotherapy clone, respectively. Compared with no treatment or BSC (81.9%), ICER estimates for TACE alone or TACE+sorafenib was $6,665/QALY (additional QALY: 0.47, additional cost: $3,120; 95% CI: -$18,800-$34,500/QALY). The cost-effectiveness acceptability curve demonstrated that if the relevant threshold was $50,000/QALY, TACE alone or TACE+sorafenib, non-sorafenib chemotherapy, and sorafenib alone, would have a cost-effectiveness probability of 99.7%, 46.6%, and 5.5%, respectively. Covariates associated with the incremental net benefit of treatments are age, sex, comorbidity, and cancer stage. Findings suggest that TACE with or without sorafenib is currently the most cost-effective active non-curative palliative treatment approach to HCC. Further research into new combination treatment strategies that afford the best tumor response is needed. PMID- 29016628 TI - Hazardous air pollutants and primary liver cancer in Texas. AB - The incidence of hepatocellular carcinoma (HCC), the most common primary liver cancer, is increasing in the US and tripled during the past two decades. The reasons for such phenomenon remain poorly understood. Texas is among continental states with the highest incidence of liver cancer with an annual increment of 5.7%. Established risk factors for HCC include Hepatitis B and C (HBV, HCV) viral infection, alcohol, tobacco and suspected risk factors include obesity and diabetes. While distribution of these risk factors in the state of Texas is similar to the national data and homogeneous, the incidence of HCC in this state is exceptionally higher than the national average and appears to be dishomogeneous in various areas of the state suggesting that other non-recognized risk factors might play a role. No population-based studies are currently available investigating the effect of exposure to Hazardous Air Pollutants (HAPs) as a contributing risk factor for liver cancer. Incidence rate of liver cancer in Texas by counties for the time period between 2002 and 2012 was obtained from the Texas Cancer Registry (TCR). Through Principal Component Analysis (PCA) a subgroup of pollutants, explaining almost all the dataset variability, were identified and used to cluster Texas counties. The analysis generated 4 clusters showing liver cancer rate either higher or lower than national average in association with either high or low levels of HAPs emission in the environment. The study shows that the selected relevant HAPs, 10 among 253 analyzed, produce a significant correlation (P = 0.01-0.05) and some of these have been previously identified as carcinogens. An association between the increased production and consequent exposure to these HAPs and a higher presence of liver cancer in certain counties is suggested. This study provides a new insight on this complex multifactorial disease suggesting that environmental substances might play a role in the etiology of this cancer. PMID- 29016629 TI - Three-dimensional morphology of first molars in relation to ethnicity and the occurrence of cleft lip and palate. AB - OBJECTIVES: This study aims to describe morphological peculiarities of maxillary and mandibular first molars in Europeans, Asians and Europeans with cleft lip and palate. MATERIAL AND METHODS: Reflex microscopy was used to obtain three dimensional morphometric landmarks from 40 models (11 Europeans and 13 Asians without cleft lip and palate, 16 Europeans with unilateral cleft lip and palate). The cases were examined using traditional morphometry and geometric morphometry, and visualized using thin-plate splines. RESULTS: Classic morphometry showed no right/left differences in the study groups and no significant differences with regard to the cleft side in patients with cleft lip and palate. In Asians, a significantly greater mesiodistal width was found. Geometric morphometry showed an enlarged centroid size in Asians (maxilla and mandible). In cleft patients, the cleft site did not appear to impact the morphology of first molars. CONCLUSION: Unilateral clefting did not affect the size and shape of molars; however, characteristic ethnicity-based differences were in fact identified. The results are relevant for orthodontic treatment with preadjusted appliances, and prosthetic CAD/CAM restorations. PMID- 29016630 TI - Association between kidney function and genetic polymorphisms in atherosclerotic and chronic kidney diseases: A cross-sectional study in Japanese male workers. AB - BACKGROUND: Several single nucleotide polymorphisms (SNPs) have been implicated in the predisposition to chronic kidney disease (CKD). Atherosclerotic disease is deeply involved in the incidence of CKD; however, whether SNPs related to arteriosclerosis are involved in CKD remains unclear. This study aimed to identify SNPs associated with CKD and to examine whether risk allele accumulation is associated with CKD. METHODS: We conducted a cross-sectional study using data of 4814 male workers to examine the association between estimated glomerular filtration rate (eGFR) and 59 candidate polymorphisms (17 CKD, 42 atherosclerotic diseases). We defined the genetic risk score (GRS) as the total number of risk alleles that showed a significant association in this analysis and examined the relationship with CKD (eGFR < 60 ml/min/1.73m2). Multivariate logistic regression, discrimination by area under the receiver operating characteristic curve, integrated discrimination improvement (IDI), and category-free net reclassification improvement (cNRI) were evaluated. RESULTS: In total, 432 participants were categorized as having CKD. We found eight candidate SNPs with P value < 0.05 (CX3CR1 rs3732379, SHROOM3 rs17319721, MTP rs1800591, PIP5K1B rs4744712, APOA5 rs662799, BRAP rs3782886, SPATA5L1 rs2467853, and MCP1 rs1024611) in the multivariate linear regression adjusted for age, body mass index, systolic blood pressure, and fasting blood glucose. Among these eight SNPs, BRAP rs3782886 and SPATA5L1 rs2467853 were significantly associated with eGFR (false discovery rate < 0.05). GRS was significantly associated with CKD (odds ratio, 1.17; 95% confidence interval, 1.09-1.26). C-statisics improved from 0.775 to 0.780 but showed no statistical significance. However, adding GRS significantly improved IDI and cNRI (0.0057, P = 0.0028, and 0.212, P < 0.001, respectively). CONCLUSIONS: After adjustment for clinical factors, kidney function was associated with BRAP rs3782886 and SPATA5L1 rs2467853 and the GRS for CKD that we developed was associated CKD. PMID- 29016632 TI - Radial artery neointimal hyperplasia after transradial PCI-Serial optical coherence tomography volumetric study. AB - AIMS: Transradial catheterization (TRC) is a dominant access site for coronary catheterization and percutaneous coronary interventions (PCI) in many centers. Previous studies reported higher intimal thickness of the radial artery (RA) wall in patients with a previous history of TRC. In this investigation the aim was to assess the intimal changes of RA using the optical coherence tomography (OCT) intravascular imaging in a serial manner. METHODS AND RESULTS: 100 patients with the diagnosis of non-ST-elevation myocardial infarction (nSTEMI) treated by PCI were enrolled (6 patients were excluded from this analysis because of occluded RA at follow-up [2 patients] and insufficient quality of OCT images [4 patients]). An 54mm long OCT run of the RA was performed immediately after the index PCI and repeated 9 months later. Volumetric analyses of the intimal layer and lumen changes were conducted. Median intimal volume at baseline versus 9 months was 33.9mm3 (19.0; 69.4) versus 39.0mm3 (21.7; 72.6) (p<0.001); and median arterial lumen volume was 356.3mm3 (227.8; 645.3) versus 304.7mm3 (186.1; 582.7) (p<0.001). There was no significant difference in the effect of any clinical factor on the RA volume changes. CONCLUSIONS: OCT volumetric analyses at baseline and 9 months showed a significant increase in the radial artery intimal layer volume and a decrease in lumen volume after transradial PCI. No significant factors affecting this process were identified. PMID- 29016631 TI - A measure of knowledge flow between specific fields: Implications of interdisciplinarity for impact and funding. AB - Encouraging knowledge flow between mutually relevant disciplines is a worthy aim of research policy makers. Yet, it is less clear what types of research promote cross-disciplinary knowledge flow and whether such research generates particularly influential knowledge. Empirical questions remain as to how to identify knowledge-flow mediating research and how to provide support for this research. This study contributes to addressing these gaps by proposing a new way to identify knowledge-flow mediating research at the individual research article level, instead of at more aggregated levels. We identify journal articles that link two mutually relevant disciplines in three ways-aggregating, bridging, and diffusing. We then examine the likelihood that these papers receive subsequent citations or have funding acknowledgments. Our case study of cognitive science and educational research knowledge flow suggests that articles that aggregate knowledge from multiple disciplines are cited significantly more often than are those whose references are drawn primarily from a single discipline. Interestingly, the articles that meet the criteria for being considered knowledge flow mediators are less likely to reflect funding, based on reported acknowledgements, than were those that did not meet these criteria. Based on these findings, we draw implications for research policymakers. PMID- 29016633 TI - Apparent survival and cost of reproduction for White-lined Tanager (Tachyphonus rufus, Thraupidae) in the northern Atlantic Rainforest, Brazil. AB - Understanding latitudinal variation in avian life-history traits has been a focus of many demographic studies around the world. However, we still know little about annual or intra-annual demographic variation within tropical regions or about how factors such as breeding season and precipitation influence demographic rates. In this study, we estimated intra-annual apparent survival of the White-lined Tanager (Tachyphonus rufus) using capture-mark-recapture data from northeastern Brazil. We tested whether survival varied seasonally (breeding vs. non-breeding), with rainfall, by age and residence status in our study area. Intra-annual apparent survival was correlated with the reproductive cycle, being lower during the breeding (0.65 +/- 0.16 SE) vs. the non-breeding season (0.97 +/- 0.05 SE). The annual apparent survival (~0.6) was relatively low for a tropical species. In both years, we observed highest abundance in spring (November, 3.1-3.7 birds/ha) and lowest abundance in autumn-winter periods (May-August, 1.1-1.4 bird/ha). The low survival during the breeding season probably reflects the trade-off between survival and reproduction and the cost of reproduction. Our findings represent an advance in the understanding of the demography of tropical birds because we did not find a predicted high annual apparent survival, and we elucidated some aspects of intra-annual variation in survival. Further exploration of latitudinal variation in demographic traits, especially in diverse, but poorly known habitats is needed to fully vet and develop life history theories. PMID- 29016634 TI - Conventional early infant diagnosis in Lesotho from specimen collection to results usage to manage patients: Where are the bottlenecks? AB - INTRODUCTION: Early infant diagnosis is an important step in identifying children infected with HIV during the perinatal period or in utero. Multiple factors contribute to delayed antiretroviral treatment initiation for HIV-infected children, including delays in the early infant HIV diagnosis cascade. METHODS: We conducted a retrospective study to evaluate early infant diagnosis turnaround times in Lesotho. Trained staff reviewed records of HIV-exposed infants (aged-6-8 weeks) who received an HIV test during 2011. Study sites were drawn from Highlands, Foothills and Lowlands regions of Lesotho. Central laboratory database data were linked to facility and laboratory register information. Turnaround time geometric means (with 95% CI) were calculated and compared by region using linear mixed models. RESULTS: 1,187 individual infant records from 25 facilities were reviewed. Overall, early infant diagnosis turnaround time was 61.7 days (95%CI: 55.3-68.7). Mean time from specimen collection to district laboratory was 14 days (95%CI: 12.1-16.1); from district to central laboratory, 2 days (95%CI 0.8-5.2); results from central laboratory to district hospital, 23.3 days (95%CI: 18.7 29.0); from district hospital to health facility, 3.2 days (95%CI 1.9-5.5); and from health facility to caregiver, 10.4 days (95%CI, 7.9-13.5). Mean times from specimen transfer to the central laboratory and for result transfer from central laboratory to district hospital were significantly shorter in the Lowlands Region (0.9 and 16.2 days, respectively), compared to Highlands Region (6.0 [P = 0.030] and 34.3 days [P = 0.0099]. Turnaround time from blood draw to receipt of results was significantly shorter for HIV infected infants compared to HIV uninfected infants [p = 0.0036] at an average of 47.1 days (95%CI: 38.9-56.9) and 62 days (95%CI: 55.9-68.7) respectively. Of 47 HIV-infected infants, 36 were initiated on antiretroviral therapy at an average of 1.3 days (95%CI: 0.3, 5.7) after caregiver received the result. CONCLUSION: HIV-infected infants received results earlier and were rapidly initiated on antiretroviral therapy once the result was delivered to caregiver. However, average early infant diagnosis turnaround time was two months; the longest period of delay was transfer of results from central laboratory to district hospital. Turnaround time of results based on geographical regions or between hospitals and health centres varied but did not reach statistical significance. PMID- 29016637 TI - Social networks, market transactions, and reputation as a central resource. The Mercado del Mar, a fish market in central Mexico. AB - Fish consumption in Mexico is considered low (around 12 kg per person per year) and non-homogeneously distributed across the country. One of the reasons for this situation is the scarcity of wholesale selling sites. In this context, the Mercado del Mar (MM), located in Guadalajara city, Jalisco, is the second biggest wholesale fish market in Mexico, with a distribution of about 500 tons per day and a variety of about 350 different species of fish. In this paper, we argue that MM has accumulated social capital, which is formed from two main resources: buyer and seller relationships, and reputation. Specifically, the MM manages a broad and intensive interaction among business actors and the already achieved reputation allows the MM to adapt to market changes. To validate our hypotheses, an empirical study was conducted in 2015 by means of interviews to fish wholesalers in the MM and a sample of their suppliers and buyers. For simplicity we have only considered fresh water fish. We have followed snow-ball sampling as the survey strategy. Results show that the MM has responded to fish market dynamics organizing a complex network of buyers and suppliers whose relationships can be explained in the form of strong and weak ties. At the same time, reputation has been the central resource to build this social capital and also gives place to market transactions. Additionally, the strategic position of Guadalajara city and the well-connected routes have facilitated fish bulking and distribution in the region. PMID- 29016636 TI - Expression of ribosomal proteins in normal and cancerous human prostate tissue. AB - Few quantifiable tissue biomarkers for the diagnosis and prognosis of prostate cancer exist. Using an unbiased, quantitative approach, this study evaluates the potential of three proteins of the 40S ribosomal protein complex as putative biomarkers of malignancy in prostate cancer. Prostate tissue arrays, constructed from 82 patient samples (245 tissue cores, stage pT3a or pT3b), were stained for antibodies against three ribosomal proteins, RPS19, RPS21 and RPS24. Semi automated Ox-DAB signal quantification using ImageJ software revealed a significant change in expression of RPS19, RPS21 and RPS24 in malignant vs non malignant tissue (p<0.0001). Receiver operating characteristics curves were calculated to evaluate the potential of each protein as a biomarker of malignancy in prostate cancer. Positive likelihood ratios for RPS19, RPS21 and RPS24 were calculated as 2.99, 4.21, and 2.56 respectively, indicating that the overexpression of the protein is correlated with the presence of disease. Triple labelled, quantitative, immunofluorescence (with RPS19, RPS21 and RPS24) showed significant changes (p<0.01) in the global intersection coefficient, a measure of how often two fluorophore signals intersect, for RPS19 and RPS24 only. No change was observed in the co-localization of any other permutations of the three proteins. Our results show that RPS19, RPS21 or RPS24 are upregulated in malignant tissue and may serve as putative biomarkers for prostate cancer. PMID- 29016635 TI - HIV/Human herpesvirus co-infections: Impact on tryptophan-kynurenine pathway and immune reconstitution. AB - BACKGROUND: Co-infections with human herpesvirus (HHV) have been associated with residual chronic inflammation in antiretroviral (ART)-treated human immunodeficiency virus (HIV)-infected individuals. However, the role of HHV in modulating the tryptophan-kynurenine pathway and clinical outcomes in HIV infected individuals is poorly understood. Thus, we investigated the seroprevalence of four common HHVs among treated HIV-infected participants and their impact on kynurenine/tryptophan (K/T) ratio and long-term CD4 T-cell recovery in HIV/HHV co-infected participants. METHOD: In this cross-sectional study, HIV-infected participants receiving suppressive ART for a minimum of 12 months were recruited from the University Malaya Medical Centre (UMMC), Malaysia. Stored plasma was analyzed for CMV, VZV, HSV-1 and HSV-2 IgG antibody levels, immune activation markers (interleukin-6, interferon-gamma, neopterin and sCD14), kynurenine and tryptophan concentrations. The influence of the number of HHV co infection and K/T ratio on CD4 T-cell recovery was assessed using multivariate Poisson regression. RESULTS: A total of 232 HIV-infected participants were recruited and all participants were seropositive for at least one HHV; 96.1% with CMV, 86.6% with VZV, 70.7% with HSV-1 and 53.9% with HSV-2. K/T ratio had a significant positive correlation with CMV (rho = 0.205, p = 0.002), VZV (rho = 0.173, p = 0.009) and a tendency with HSV-2 (rho = 0.120, p = 0.070), with CMV antibody titer demonstrating the strongest modulating effect on K/T ratio among the four HHVs assessed in SOM analysis. In multivariate analysis, higher K/T ratio (p = 0.03) and increasing number of HHV co-infections (p<0.001) were independently associated with poorer CD4 T-cell recovery following 12 months of ART initiation. CONCLUSION: Multiple HHV co-infections are common among ART treated HIV-infected participants in the developing country setting and associated with persistent immune activation and poorer CD4 T-cell recovery. PMID- 29016638 TI - Penile coital injuries in men decline after circumcision: Results from a prospective study of recently circumcised and uncircumcised men in western Kenya. AB - BACKGROUND: Penile coital injuries are one of the suggested mechanisms behind the increased risk of HIV among uncircumcised men. We evaluated the prevalence and correlates of self-reported penile coital injuries in a longitudinal community based cohort of young (18-24 years old), newly circumcised and uncircumcised men in Western Kenya. METHODS: Self-reported penile coital injuries were assessed at baseline, 6, 12, 18 and 24 months of follow-up, and were defined as scratches, cuts or abrasions during sex, penile soreness during sex, and skin of the penis bleeding during sex. Associations between penile coital injuries, circumcision, sexual satisfaction, and other covariates were estimated with mixed effect models. RESULTS: Between November 2008 and April 2010 3,186 participants were enrolled (1,588 into circumcision group and 1,598 as age-matched controls). Among 2,106 (66%) participants sexually active at baseline, 53% reported any penile injury, including 44% scratches, cuts or abrasions; 32% penile pain/soreness; and 22% penile bleeding. In multivariable modeling, risk was lower for circumcised men than uncircumcised men for scratches, cuts and abrasions (aOR = 0.39; 95% CI 0.34-0.44); penile pain/soreness (aOR = 0.58; 95% CI 0.51-0.65), penile bleeding (aOR = 0.53; 95% CI 0.46-0.62), and any penile coital injuries (aOR = 0.47; 95%CI 0.42-0.53). Other significant risk factors included increasing age, history of STIs and genital sores, and multiple sex partners, while condom use was protective. Coital injuries were significantly associated with lower levels of sexual satisfaction in longitudinal analyses (scratches, cuts or abrasions: aOR = 0.87, 95% CI: 0.76-0.98; penile pain/soreness: aOR = 0.82, 95% CI: 0.72-0.93; and penile bleeding: aOR = 0.65, 95% CI: 0.55-0.76). CONCLUSIONS: Self-reported penile coital injuries were common and decreased significantly following circumcision. Improving sexual experience through the removal of a potential source of sexual discomfort may resonate with many men targeted for circumcision services. The role of penile coital injuries in sexual satisfaction, HIV, HSV-2, and as a motivator for seeking circumcision services should be explored further. PMID- 29016639 TI - Do black lives matter in public health research and training? AB - OBJECTIVE: To examine whether investments made in public health research align with the health burdens experienced by white and black Americans. METHODS: In this cross-sectional study of all deaths in the United States in 2015, we compared the distribution of potential years of life lost (PYLL) across 39 causes of death by race and identified key differences. We examined the relationship between cause-of-death-specific PYLL and key indicators of public health investment (federal funding and number of publications) by race using linear spline models. We also compared the number of courses available at the top schools of public health relevant to the top causes of death contributor to PYLL for black and white Americans. RESULTS: Homicide was the number one contributor to PYLL among black Americans, while ischemic heart disease was the number one contributor to PYLL among white Americans. Firearm-related violence accounted for 88% of black PYLL attributed to homicide and 71% of white PYLL attributed to homicide. Despite the high burden of PYLL, homicide research was the focus of few federal grants or publications. In comparison, ischemic heart disease garnered 341 grants and 594 publications. The number of public health courses available relevant to homicide (n = 9) was similar to those relevant to ischemic heart disease (n = 10). CONCLUSIONS: Black Americans are disproportionately affected by homicide, compared to white Americans. For both black and white Americans, the majority of PYLL due to homicide are firearm-related. Yet, homicide research is dramatically underrepresented in public health research investments in terms of grant funding and publications, despite available public health training opportunities. If left unchecked, the observed disproportionate distribution of investments in public health resources threatens to perpetuate a system that disadvantages black Americans. PMID- 29016641 TI - Association of SNP rs80659072 in the ZRS with polydactyly in Beijing You chickens. AB - The Beijing You chicken is a Chinese native breed with superior meat quality and a unique appearance. The G/T mutation of SNP rs80659072 in the Shh long-range regulator of GGA2 is highly associated with the polydactyly phenotype in some chicken breeds. In the present study, this SNP was genotyped using the TaqMan detection method, and its association with the number of toes was analyzed in a flock of 158 birds of the Beijing You population maintained at the Beijing Academy of Agriculture and Forestry Sciences. Furthermore, the skeletal structure of the digits was dissected and assembled in 113 birds. The findings revealed that the toes of Beijing You chickens were rich and more complex than expected. The plausible mutation rs80659072 in the zone of polarizing activity regulatory sequence (ZRS) in chickens was an essential but not sufficient condition for polydactyly and polyphalangy in Beijing You chickens. Several individuals shared the T allele but showed normal four-digit conformations. However, breeding trials demonstrated that the T allele could serve as a strong genetic marker for five toe selection in Beijing You chickens. PMID- 29016642 TI - Navigating behavioral energy sufficiency. Results from a survey in Swiss cities on potential behavior change. AB - Many countries have some kind of energy-system transformation either planned or ongoing for various reasons, such as to curb carbon emissions or to compensate for the phasing out of nuclear energy. One important component of these transformations is the overall reduction in energy demand. It is generally acknowledged that the domestic sector represents a large share of total energy consumption in many countries. Increased energy efficiency is one factor that reduces energy demand, but behavioral approaches (known as "sufficiency") and their respective interventions also play important roles. In this paper, we address citizens' heterogeneity regarding both their current behaviors and their willingness to realize their sufficiency potentials-that is, to reduce their energy consumption through behavioral change. We collaborated with three Swiss cities for this study. A survey conducted in the three cities yielded thematic sets of energy-consumption behavior that various groups of participants rated differently. Using this data, we identified four groups of participants with different patterns of both current behaviors and sufficiency potentials. The paper discusses intervention types and addresses citizens' heterogeneity and behaviors from a city-based perspective. PMID- 29016640 TI - Effects of AAV-mediated knockdown of nNOS and GPx-1 gene expression in rat hippocampus after traumatic brain injury. AB - Virally mediated RNA interference (RNAi) to knock down injury-induced genes could improve functional outcome after traumatic brain injury (TBI); however, little is known about the consequences of gene knockdown on downstream cell signaling pathways and how RNAi influences neurodegeneration and behavior. Here, we assessed the effects of adeno-associated virus (AAV) siRNA vectors that target two genes with opposing roles in TBI pathogenesis: the allegedly detrimental neuronal nitric oxide synthase (nNOS) and the potentially protective glutathione peroxidase 1 (GPx-1). In rat hippocampal progenitor cells, three siRNAs that target different regions of each gene (nNOS, GPx-1) effectively knocked down gene expression. However, in vivo, in our rat model of fluid percussion brain injury, the consequences of AAV-siRNA were variable. One nNOS siRNA vector significantly reduced the number of degenerating hippocampal neurons and showed a tendency to improve working memory. GPx-1 siRNA treatment did not alter TBI-induced neurodegeneration or working memory deficits. Nevertheless, microarray analysis of laser captured, virus-infected neurons showed that knockdown of nNOS or GPx-1 was specific and had broad effects on downstream genes. Since nNOS knockdown only modestly ameliorated TBI-induced working memory deficits, despite widespread genomic changes, manipulating expression levels of single genes may not be sufficient to alter functional outcome after TBI. PMID- 29016643 TI - Minimum requirements for motility of a processive motor protein. AB - Motor proteins generally have a two-way coupling between the ATP hydrolysis site, the lever movement and the binding affinity for their track, which allows them to perform efficient stepping. Here we explore the minimal requirements for directed motility based on simpler schemes in which the binding/unbinding from the track is decoupled from the ATPase cycle. We show that a directed power stroke alone is not sufficient for motility, but combined with an asymmetry in force-induced unbinding rates it can generate stepping. The energetic efficiency of such stepping is limited to approximately 20%. We conclude that the allosteric coupling between the ATP hydrolysis and the track binding is not strictly necessary for motility, but it greatly improves its efficiency. PMID- 29016644 TI - Accuracy of Xpert Clostridium difficile assay for the diagnosis of Clostridium difficile infection: A meta analysis. AB - BACKGROUND: There is an urgent need for rapid and accurate microbiological diagnostic assay for detection of Clostridium difficile infection (CDI). We assessed the diagnostic accuracy of the Xpert Clostridium difficile assay (Xpert CD) for the diagnosis of CDI. METHODS: We searched PubMed, EMBASE, and Cochrane Library databases to identify studies according to predetermined criteria. STATA 13.0 software was used to analyze the tests for sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio, and area under the summary receiver operating characteristic curves (AUC). QUADAS-2 was used to assess the quality of included studies with RevMan 5.2. Heterogeneity in accuracy measures was tested with Spearman correlation coefficient and Chi square. RESULTS: A total of 22 studies were included in the meta-analysis. The pooled sensitivity (95% confidence intervals [CI]) was 0.97 (0.95-0.99) and specificity was 0.95 (0.94-0.96). The AUC was 0.99 (0.97-0.99). Significant heterogeneity was observed when we pooled most of the accuracy measures of selected studies. CONCLUSIONS: The Xpert CD assay is a useful diagnostic tool with high sensitivity and specificity in diagnosing toxigenic CDI, and this method has excellent usability due to its rapidity and simplicity. PMID- 29016645 TI - Spontaneous variability of pre-dialysis concentrations of uremic toxins over time in stable hemodialysis patients. AB - BACKGROUND AND AIM: Numerous outcome studies and interventional trials in hemodialysis (HD) patients are based on uremic toxin concentrations determined at one single or a limited number of time points. The reliability of these studies however entirely depends on how representative these cross-sectional concentrations are. We therefore investigated the variability of predialysis concentrations of uremic toxins over time. METHODS: Prospectively collected predialysis serum samples of the midweek session of week 0, 1, 2, 3, 4, 8, 12, and 16 were analyzed for a panel of uremic toxins in stable chronic HD patients (N = 18) while maintaining dialyzer type and dialysis mode during the study period. RESULTS: Concentrations of the analyzed uremic toxins varied substantially between individuals, but also within stable HD patients (intra patient variability). For urea, creatinine, beta-2-microglobulin, and some protein-bound uremic toxins, Intra-class Correlation Coefficient (ICC) was higher than 0.7. However, for phosphorus, uric acid, symmetric and asymmetric dimethylarginine, and the protein-bound toxins hippuric acid and indoxyl sulfate, ICC values were below 0.7, implying a concentration variability within the individual patient even exceeding 65% of the observed inter-patient variability. CONCLUSION: Intra-patient variability may affect the interpretation of the association between a single concentration of certain uremic toxins and outcomes. When performing future outcome and interventional studies with uremic toxins other than described here, one should quantify their intra-patient variability and take into account that for solutes with a large intra-patient variability associations could be missed. PMID- 29016648 TI - Recurrence analysis of ant activity patterns. AB - In this study, we used recurrence quantification analysis (RQA) and recurrence plots (RPs) to compare the movement activity of individual workers of three ant species, as well as a gregarious beetle species. RQA and RPs quantify the number and duration of recurrences of a dynamical system, including a detailed quantification of signals that could be stochastic, deterministic, or both. First, we found substantial differences between the activity dynamics of beetles and ants, with the results suggesting that the beetles have quasi-periodic dynamics and the ants do not. Second, workers from different ant species varied with respect to their dynamics, presenting degrees of predictability as well as stochastic signals. Finally, differences were found among minor and major caste of the same (dimorphic) ant species. Our results underscore the potential of RQA and RPs in the analysis of complex behavioral patterns, as well as in general inferences on animal behavior and other biological phenomena. PMID- 29016646 TI - Methotrexate versus cyclophosphamide for remission maintenance in ANCA-associated vasculitis: A randomised trial. AB - OBJECTIVES: The treatment of anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis (AAV) is based on remission-induction and remission maintenance. Methotrexate is a widely used immunosuppressant but only a few studies explored its role for maintenance in AAV. This trial investigated the efficacy and safety of methotrexate as maintenance therapy for AAV. METHODS: In this single-centre, open-label, randomised trial we compared methotrexate and cyclophosphamide for maintenance in AAV. We enrolled patients with granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA) and eosinophilic granulomatosis with polyangiitis (EGPA), the latter with poor-prognosis factors and/or peripheral neuropathy. Remission was induced with cyclophosphamide. At remission, the patients were randomised to receive methotrexate or to continue with cyclophosphamide for 12 months; after treatment, they were followed for another 12 months. The primary end-point was relapse; secondary end-points included renal outcomes and treatment-related toxicity. RESULTS: Of the 94 enrolled patients, 23 were excluded during remission-induction or did not achieve remission; the remaining 71 were randomised to cyclophosphamide (n = 33) or methotrexate (n = 38). Relapse frequencies at months 12 and 24 after randomisation were not different between the two groups (p = 1.00 and 1.00). Relapse-free survival was also comparable (log-rank test p = 0.99). No differences in relapses were detected between the two treatments when GPA+MPA and EGPA were analysed separately. There were no differences in eGFR at months 12 and 24; proteinuria declined significantly (from diagnosis to month 24) only in the cyclophosphamide group (p = 0.0007). No significant differences in adverse event frequencies were observed. CONCLUSIONS: MTX may be effective and safe for remission-maintenance in AAV. TRIAL REGISTRATION: clinicaltrials.gov NCT00751517. PMID- 29016647 TI - A moving fluoroscope to capture tibiofemoral kinematics during complete cycles of free level and downhill walking as well as stair descent. AB - Videofluoroscopy has been shown to provide essential information in the evaluation of the functionality of total knee arthroplasties. However, due to the limitation in the field of view, most systems can only assess knee kinematics during highly restricted movements. To avoid the limitations of a static image intensifier, a moving fluoroscope has been presented as a standalone system that allows tracking of the knee during multiple complete cycles of level- and downhill-walking, as well as stair descent, in combination with the synchronous assessment of ground reaction forces and whole body skin marker measurements. Here, we assess the ability of the system to keep the knee in the field of view of the image intensifier. By measuring ten total knee arthroplasty subjects, we demonstrate that it is possible to maintain the knee to within 1.8 +/- 1.4 cm vertically and 4.0 +/- 2.6 cm horizontally of the centre of the intensifier throughout full cycles of activities of daily living. Since control of the system is based on real-time feedback of a wire sensor, the system is not dependent on repeatable gait patterns, but is rather able to capture pathological motion patterns with low inter-trial repeatability. PMID- 29016651 TI - Soccer-based promotion of voluntary medical male circumcision: A mixed-methods feasibility study with secondary students in Uganda. AB - The Ugandan government is committed to scaling-up proven HIV prevention strategies including safe male circumcision, and innovative strategies are needed to increase circumcision uptake. The aim of this study was to assess the acceptability and feasibility of implementing a soccer-based intervention ("Make The Cut") among schoolboys in a peri-urban district of Uganda. The intervention was led by trained, recently circumcised "coaches" who facilitated a 60-minute session delivered in schools, including an interactive penalty shoot-out game using metaphors for HIV prevention, sharing of the coaches' circumcision story, group discussion and ongoing engagement from the coach to facilitate linkage to male circumcision. The study took place in four secondary schools in Entebbe sub district, Uganda. Acceptability of safe male circumcision was assessed through a cross-sectional quantitative survey. The feasibility of implementing the intervention was assessed by piloting the intervention in one school, modifying it, and implementing the modified version in a second school. Perceptions of the intervention were assessed with in-depth interviews with participants. Of the 210 boys in the cross-sectional survey, 59% reported being circumcised. Findings showed high levels of knowledge and generally favourable perceptions of circumcision. The initial implementation of Make The Cut resulted in 6/58 uncircumcised boys (10.3%) becoming circumcised. Changes made included increasing engagement with parents and improved liaison with schools regarding the timing of the intervention. Following this, uptake improved to 18/69 (26.1%) in the second school. In-depth interviews highlighted the important role of family and peer support and the coach in facilitating the decision to circumcise. This study showed that the modified Make The Cut intervention may be effective to increase uptake of safe male circumcision in this population. However, the intervention is time-intensive, and further work is needed to assess the cost-effectiveness of the intervention conducted at scale. PMID- 29016652 TI - Optimal experimental conditions for Welan gum production by support vector regression and adaptive genetic algorithm. AB - Welan gum is a kind of novel microbial polysaccharide, which is widely produced during the process of microbial growth and metabolism in different external conditions. Welan gum can be used as the thickener, suspending agent, emulsifier, stabilizer, lubricant, film-forming agent and adhesive usage in agriculture. In recent years, finding optimal experimental conditions to maximize the production is paid growing attentions. In this work, a hybrid computational method is proposed to optimize experimental conditions for producing Welan gum with data collected from experiments records. Support Vector Regression (SVR) is used to model the relationship between Welan gum production and experimental conditions, and then adaptive Genetic Algorithm (AGA, for short) is applied to search optimized experimental conditions. As results, a mathematic model of predicting production of Welan gum from experimental conditions is obtained, which achieves accuracy rate 88.36%. As well, a class of optimized experimental conditions is predicted for producing Welan gum 31.65g/L. Comparing the best result in chemical experiment 30.63g/L, the predicted production improves it by 3.3%. The results provide potential optimal experimental conditions to improve the production of Welan gum. PMID- 29016649 TI - Small heterodimer partner (SHP) deficiency protects myocardia from lipid accumulation in high fat diet-fed mice. AB - The small heterodimer partner (SHP) regulates fatty acid oxidation and lipogenesis in the liver by regulating peroxisome proliferator-activated receptor (PPAR) gamma expression. SHP is also abundantly expressed in the myocardium. We investigated the effect of SHP expression on myocardia assessing not only heart structure and function but also lipid metabolism and related gene expression in a SHP deletion animal model. Transcriptional profiling with a microarray revealed that genes participating in cell growth, cytokine signalling, phospholipid metabolism, and extracellular matrix are up-regulated in the myocardia of SHP knockout (KO) mice compared to those of wild-type (WT) mice (nominal p value < 0.05). Consistent with these gene expression changes, the left ventricular masses of SHP KO mice were significantly higher than WT mice (76.8 +/- 20.5 mg vs. 52.8 +/- 6.8 mg, P = 0.0093). After 12 weeks of high fat diet (HFD), SHP KO mice gained less weight and exhibited less elevation in serum-free fatty acid and less ectopic lipid accumulation in the myocardium than WT mice. According to microarray analysis, genes regulated by PPARgamma1 and PPARalpha were down regulated in myocardia of SHP KO mice compared to their expression in WT mice after HFD, suggesting that the reduction in lipid accumulation in the myocardium resulted from a decrease in lipogenesis regulated by PPARgamma. We confirmed the reduced expression of PPARgamma1 and PPARalpha target genes such as CD36, medium chain acyl-CoA dehydrogenase, long-chain acyl-CoA dehydrogenase, and very long chain acyl-CoA dehydrogenase by SHP KO after HFD. PMID- 29016650 TI - Protein-protein interactions in paralogues: Electrostatics modulates specificity on a conserved steric scaffold. AB - An improved knowledge of protein-protein interactions is essential for better understanding of metabolic and signaling networks, and cellular function. Progress tends to be based on structure determination and predictions using known structures, along with computational methods based on evolutionary information or detailed atomistic descriptions. We hypothesized that for the case of interactions across a common interface, between proteins from a pair of paralogue families or within a family of paralogues, a relatively simple interface description could distinguish between binding and non-binding pairs. Using binding data for several systems, and large-scale comparative modeling based on known template complex structures, it is found that charge-charge interactions (for groups bearing net charge) are generally a better discriminant than buried non-polar surface. This is particularly the case for paralogue families that are less divergent, with more reliable comparative modeling. We suggest that electrostatic interactions are major determinants of specificity in such systems, an observation that could be used to predict binding partners. PMID- 29016653 TI - Randomized trial of two doses of vitamin D3 in preterm infants <32 weeks: Dose impact on achieving desired serum 25(OH)D3 in a NICU population. AB - BACKGROUND: Recommendations for vitamin D supplementation for preterm infants span a wide range of doses. Response to vitamin D supplementation and impact on outcomes in preterm infants is not well understood. OBJECTIVE: Evaluate serum 25(OH)D3 concentration changes after 4 weeks in response to two different doses of vitamin D3 supplementation in a population of premature infants and quantify the impact on NICU outcomes. DESIGN: 32 infants born at 24-32 weeks gestation were prospectively randomized to receive 400 or 800 IU/day vitamin D3 supplementation. Serum 25(OH)D3 levels were measured every 4 weeks. The Wilcoxon signed rank test was used to compare serum levels of 25(OH)D3 at 4 weeks and each subsequent time point. A p-value of <0.05 was considered statistically significant. RESULTS: Serum 25(OH)D3 levels at birth were 41.9 and 42.9 nmol/l for infants in the 400 IU group and 800 IU group, respectively (p = 0.86). Cord 25(OH)D3 concentrations significantly correlated with gestational age (r = 0.40, p = 0.04). After 4 weeks of D3 supplementation, median 25(OH)D3 levels increased in both groups (84.6vs. 105.3 nmol/l for 400 vs. 800 IU/day respectively, with significantly more improvement in the higher dose (p = 0.048). Infants in the 400 IU group were significantly more likely to have dual energy x-ray absorptiometry (DEXA) bone density measurements <10 percentile (56% vs 16%, p = 0.04). CONCLUSIONS: Improvement in 25(OH)D3 levels at 4 weeks, bone density, and trends towards improvement in linear growth support consideration of a daily dose of 800 IU of vitamin D for infants <32 weeks cared for in the NICU. PMID- 29016654 TI - Proton beam irradiation inhibits the migration of melanoma cells. AB - PURPOSE: In recent years experimental data have indicated that low-energy proton beam radiation might induce a difference in cellular migration in comparison to photons. We therefore set out to compare the effect of proton beam irradiation and X-rays on the survival and long-term migratory properties of two cell lines: uveal melanoma Mel270 and skin melanoma BLM. MATERIALS AND METHODS: Cells treated with either proton beam or X-rays were analyzed for their survival using clonogenic assay and MTT test. Long-term migratory properties were assessed with time-lapse monitoring of individual cell movements, wound test and transpore migration, while the expression of the related proteins was measured with western blot. RESULTS: Exposure to proton beam and X-rays led to similar survival but the quality of the cell colonies was markedly different. More paraclones with a low proliferative activity and fewer highly-proliferative holoclones were found after proton beam irradiation in comparison to X-rays. At 20 or 40 days post irradiation, migratory capacity was decreased more by proton beam than by X-rays. The beta-1-integrin level was decreased in Mel270 cells after both types of radiation, while vimentin, a marker of EMT, was increased in BLM cells only. CONCLUSIONS: We conclude that proton beam irradiation induced long-term inhibition of cellular motility, as well as changes in the level of beta-1 integrin and vimentin. If confirmed, the change in the quality, but not in the number of colonies after proton beam irradiation might favor tumor growth inhibition after fractionated proton therapy. PMID- 29016655 TI - Meta-analysis of peripheral blood gene expression modules for COPD phenotypes. AB - Chronic obstructive pulmonary disease (COPD) occurs typically in current or former smokers, but only a minority of people with smoking history develops the disease. Besides environmental factors, genetics is an important risk factor for COPD. However, the relationship between genetics, environment and phenotypes is not well understood. Sample sizes for genome-wide expression studies based on lung tissue have been small due to the invasive nature of sample collection. Increasing evidence for the systemic nature of the disease makes blood a good alternative source to study the disease, but there have also been few large-scale blood genomic studies in COPD. Due to the complexity and heterogeneity of COPD, examining groups of interacting genes may have more relevance than identifying individual genes. Therefore, we used Weighted Gene Co-expression Network Analysis to find groups of genes (modules) that are highly connected. However, module definitions may vary between individual data sets. To alleviate this problem, we used a consensus module definition based on two cohorts, COPDGene and ECLIPSE. We studied the relationship between the consensus modules and COPD phenotypes airflow obstruction and emphysema. We also used these consensus module definitions on an independent cohort (TESRA) and performed a meta analysis involving all data sets. We found several modules that are associated with COPD phenotypes, are enriched in functional categories and are overrepresented for cell-type specific genes. Of the 14 consensus modules, three were strongly associated with airflow obstruction (meta p <= 0.0002), and two had some association with emphysema (meta p <= 0.06); some associations were stronger in the case-control cohorts, and others in the cases-only subcohorts. Gene Ontology terms that were overrepresented included "immune response" and "defense response." The cell types whose type-specific genes were overrepresented in modules (p < 0.05) included natural killer cells, dendritic cells, and neutrophils. Together, this is the largest investigation of gene blood expression in COPD with 469 cases in COPDGene, ECLIPSE and TESRA combined, with 6267 genes common to all data sets. Additional, we have 42 and 83 controls in COPDGene and ECLIPSE, respectively. PMID- 29016656 TI - Behavioral testing of minipigs transgenic for the Huntington gene-A three-year observational study. AB - BACKGROUND: Large animal models of Huntington's disease (HD) may increase the reliability of translating preclinical findings to humans. Long live expectancy offers opportunities particularly for disease modifying approaches, but also challenges. The transgenic (tg) HD minipig model assessed in this study exhibits a high genetic homology with humans, similar body weight, and comparable brain structures. To test long-term safety, tolerability, and efficacy of novel therapeutic approaches in this model reliable assessments applicable longitudinally for several years are warranted for all phenotypical domains relevant in HD. OBJECTIVE: To investigate whether the tests proposed assessing motor, cognitive and behavioral domains can be applied repetitively over a 3-year period in minipigs with acceptable variability or learning effects and whether tgHD minipigs reveal changes in these domains compared to wildtype (wt) minipigs suggesting the development of an HD phenotype. METHODS: A cohort of 14 tgHD and 18 wt minipigs was followed for three years. Tests applied every six months included a tongue coordination and hurdle test for the motor domain, a color discrimination test for cognition, and a dominance test for assessing behavior. Statistical analyses were performed using repeated ANOVA for longitudinal group comparisons and Wilcoxon-tests for intra-visit differences between tgHD and wt minipigs. RESULTS: All tests applied demonstrated feasibility, acceptable variance and good consistency during the three-year period. No significant differences between tgHD and wt minipigs were detected suggesting lack of a phenotype before the age of four years. CONCLUSIONS: The assessment battery presented offers measures in all domains relevant for HD and can be applied in long-term phenotyping studies with tgHD minipigs. The observation of this cohort should be continued to explore the timeline of phenotype development and provide information for future interventional studies. PMID- 29016660 TI - Correction: Prognostic power of global 2D strain according to left ventricular ejection fraction in patients with ST elevation myocardial infarction. AB - [This corrects the article DOI: 10.1371/journal.pone.0174160.]. PMID- 29016659 TI - Effectiveness of longitudinal faculty development programs on MCQs items writing skills: A follow-up study. AB - This study examines the long-term impact of the faculty development programs on the multiple choice question (MCQ) items' quality leading to study its effect on the students' overall competency level during their yearly academic assessment. A series of longitudinal highly constructed faculty development workshops were conducted to improve the quality of the MCQs items writing skills. A total of 2207 MCQs were constructed by 58 participants for the assessment of 882 students' cognitive competency level during the academic years 2012-2015. The MCQs were analyzed for the difficulty index (P-value), discriminating index (DI), presence/absence of item writing flaws (IWFs), and non-functioning distractors (NFDs), Bloom's taxonomy cognitive levels, test reliability, and the rate of students' scoring. Significant improvement in the difficulty index and DI were noticed during each successive academic year. Easy and poor discriminating questions, NFDs and IWFs were decreased significantly, whereas distractor efficiency (DE) mean score and high cognitive level (K2) questions were increased substantially during the each successive academic year. Improved MCQs' quality leaded to increased competency level of the borderline students. Overall, the longitudinal faculty development workshops help in improving the quality of the MCQs items writing skills of the faculty that leads to students' high competency levels. PMID- 29016657 TI - Early and late components of EEG delay activity correlate differently with scene working memory performance. AB - Sustained and elevated activity during the working memory delay period has long been considered the primary neural correlate for maintaining information over short time intervals. This idea has recently been reinterpreted in light of findings generated from multiple neural recording modalities and levels of analysis. To further investigate the sustained or transient nature of activity, the temporal-spectral evolution (TSE) of delay period activity was examined in humans with high density EEG during performance of a Sternberg working memory paradigm with a relatively long six second delay and with novel scenes as stimuli. Multiple analyses were conducted using different trial window durations and different baseline periods for TSE computation. Sensor level analyses revealed transient rather than sustained activity during delay periods. Specifically, the consistent finding among the analyses was that high amplitude activity encompassing the theta range was found early in the first three seconds of the delay period. These increases in activity early in the delay period correlated positively with subsequent ability to distinguish new from old probe scenes. Source level signal estimation implicated a right parietal region of transient early delay activity that correlated positively with working memory ability. This pattern of results adds to recent evidence that transient rather than sustained delay period activity supports visual working memory performance. The findings are discussed in relation to synchronous and desynchronous intra- and inter-regional neural transmission, and choosing an optimal baseline for expressing temporal-spectral delay activity change. PMID- 29016658 TI - Probing the interaction between NatA and the ribosome for co-translational protein acetylation. AB - N-terminal acetylation is among the most abundant protein modifications in eukaryotic cells. Over the last decade, significant progress has been made in elucidating the function of N-terminal acetylation for a number of diverse systems, involved in a wide variety of biological processes. The enzymes responsible for the modification are the N-terminal acetyltransferases (NATs). The NATs are a highly conserved group of enzymes in eukaryotes, which are responsible for acetylating over 80% of the soluble proteome in human cells. Importantly, many of these NATs act co-translationally; they interact with the ribosome near the exit tunnel and acetylate the nascent protein chain as it is being translated. While the structures of many of the NATs have been determined, the molecular basis for the interaction with ribosome is not known. Here, using purified ribosomes and NatA, a very well-studied NAT, we show that NatA forms a stable complex with the ribosome in the absence of other stabilizing factors and through two conserved regions; primarily through an N-terminal domain and an internal basic helix. These regions may orient the active site of the NatA to face the peptide emerging from the exit tunnel. This work provides a framework for understanding how NatA and potentially other NATs interact with the ribosome for co-translational protein acetylation and sets the foundation for future studies to decouple N-terminal acetyltransferase activity from ribosome association. PMID- 29016661 TI - Modified RNA-seq method for microbial community and diversity analysis using rRNA in different types of environmental samples. AB - RNA-seq-based SSU (small subunit) rRNA (ribosomal RNA) analysis has provided a better understanding of potentially active microbial community within environments. However, for RNA-seq library construction, high quantities of purified RNA are typically required. We propose a modified RNA-seq method for SSU rRNA-based microbial community analysis that depends on the direct ligation of a 5' adaptor to RNA before reverse-transcription. The method requires only a low input quantity of RNA (10-100 ng) and does not require a DNA removal step. The method was initially tested on three mock communities synthesized with enriched SSU rRNA of archaeal, bacterial and fungal isolates at different ratios, and was subsequently used for environmental samples of high or low biomass. For high biomass salt-marsh sediments, enriched SSU rRNA and total nucleic acid-derived RNA-seq datasets revealed highly consistent community compositions for all of the SSU rRNA sequences, and as much as 46.4%-59.5% of 16S rRNA sequences were suitable for OTU (operational taxonomic unit)-based community and diversity analyses with complete coverage of V1-V2 regions. OTU-based community structures for the two datasets were also highly consistent with those determined by all of the 16S rRNA reads. For low-biomass samples, total nucleic acid-derived RNA-seq datasets were analyzed, and highly active bacterial taxa were also identified by the OTU-based method, notably including members of the previously underestimated genus Nitrospira and phylum Acidobacteria in tap water, members of the phylum Actinobacteria on a shower curtain, and members of the phylum Cyanobacteria on leaf surfaces. More than half of the bacterial 16S rRNA sequences covered the complete region of primer 8F, and non-coverage rates as high as 38.7% were obtained for phylum-unclassified sequences, providing many opportunities to identify novel bacterial taxa. This modified RNA-seq method will provide a better snapshot of diverse microbial communities, most notably by OTU-based analysis, even communities with low-biomass samples. PMID- 29016662 TI - Fine mapping of Pi57(t) conferring broad spectrum resistance against Magnaporthe oryzae in introgression line IL-E1454 derived from Oryza longistaminata. AB - Wild species of the genus Oryza are excellent gene pools for improvement of agronomic traits of Asian cultivated rice. The blast resistance gene Pi57(t) in the introgression line IL-E1454 derived from Oryza longistaminata was previously mapped on rice chromosome 12. Inoculation with 322 Magnaporthe oryzae isolates collected from 6 countries indicated that Pi57(t) conferred broad spectrum resistance against M. oryzae. Two mapping populations consisting of 29070 and 10375 F2 plants derived from the crosses of resistant donor IL-E1454 with susceptible parents RD23 and Lijiangxintuanheigu respectively, were used for fine mapping of Pi57(t) locus. Based on genotyping and phenotyping results of recombinants screened from the two crosses, Pi57(t) was finally mapped to a 51.7 kb region flanked by two molecular markers (STS57-320 and STS57-372) on the short arm and close to the centromere of chromosome 12. Six candidate resistance genes were predicted in the target region according to the reference sequence of Nipponbare. These results could facilitate both marker-assisted selection for disease-resistant breeding and gene cloning. PMID- 29016663 TI - Information sources, awareness and preventive health behaviors in a population at risk of Arsenic exposure: The role of gender and social networks. AB - The population of Paracatu is at risk of Arsenic (As) exposure associated with long-term exploration of the largest open pit gold mine in Brazil. As part of the interdisciplinary research "The Paracatu project: Arsenic environmental contamination and human health risks assessment in Paracatu-MG", carried out between 2011 and 2013, we used data disaggregated by gender to identify the sources of As-related information being accessed by inhabitants of Paracatu and to examine if access to these sources was correlated to awareness of As health effects and adoption of behaviors to reduce risk of As exposure. Semi-structured, face-to-face interviews were carried out with 460 participants (294 women and 166 men) to collect data on respondent's socio-demographic characteristics, use of mass media and social communication networks as sources of information on As issues, the trustworthiness of these information sources, awareness of As health effects, and adoption of behaviors to reduce As exposure. For both men and women, interpersonal communication was used and trusted more frequently than mass media to obtain information on As. Discussion of As issues occurred preferentially among individuals of the same gender and was associated with awareness of As health risks. There are marked differences in variables correlated with the adoption of behaviors to reduce the risk of As exposure between men and women. Discussing As issues with women was associated with adoption of risk-reduction practices for both genders. In contrast, men who discuss As issues with other men were less likely to adopt As exposure prevention behaviors. Finally, adoption was associated with awareness of As health effects for women, but this was not the case for men. Policy implications for decision makers, practitioners and researchers are discussed, based on concrete examples of how gender-specific approaches can effectively guide the formulation and implementation of health promotion campaigns and programs. PMID- 29016664 TI - Contribution of cell proliferation to axial elongation in the red flour beetle Tribolium castaneum. AB - Most arthropods generate their posterior bodies by adding segments periodically, as the embryo grows, from a posteriorly located region called the segment addition zone. This mode of segmentation is shared with vertebrates and relies on oscillatory mechanisms, where the temporal periodicity of a clock is translated into repetitive spatial patterns. This ordered anterior-to-posterior pattern is achieved at the same time as the tissue elongates, opening the question of the functional coordination between the mechanisms of segmental patterning and posterior growth. The study of these processes in different arthropods has played an important role in unravelling some of the molecular mechanisms of segment formation. However, the behavior of cells during elongation and how cellular processes affect this segmental patterning has been poorly studied. Cell proliferation together with cell rearrangements are presumed to be the major forces driving axis elongation in the red flour beetle Tribolium castaneum. However, there still no strong evidence about the role and distribution of cell proliferation within the embryo. In this study, we propose to address these questions by using whole embryo cultures and pharmacological manipulation. We show that considerable cell proliferation occurs during germband elongation, measured by incorporation of the nucleoside analog of thymidine 5-Ethynyl-2' deoxyuridine, EdU. Moreover, proliferating cells appeared to be spread along the elongating embryo with a posterior bias at early segmentation. In addition, when we blocked cell division, treated germbands were always shorter than controls and in some cases not able to fully elongate, even when control embryos already started to retract and leg buds are evident. Finally, we found that the absence of cell proliferation has no apparent effect on segmental patterning, as evidenced by Tc-engrailed (Tc-en) gene expression. PMID- 29016665 TI - QTL mapping for flowering-time and photoperiod insensitivity of cotton Gossypium darwinii Watt. AB - Most wild and semi-wild species of the genus Gossypium are exhibit photoperiod sensitive flowering. The wild germplasm cotton is a valuable source of genes for genetic improvement of modern cotton cultivars. A bi-parental cotton population segregating for photoperiodic flowering was developed by crossing a photoperiod insensitive irradiation mutant line with its pre-mutagenesis photoperiodic wild type G. darwinii Watt genotype. Individuals from the F2 and F3 generations were grown with their parental lines and F1 hybrid progeny in the long day and short night summer condition (natural day-length) of Uzbekistan to evaluate photoperiod sensitivity, i.e., flowering-time during the seasons 2008-2009. Through genotyping the individuals of this bi-parental population segregating for flowering-time, linkage maps were constructed using 212 simple-sequence repeat (SSR) and three cleaved amplified polymorphic sequence (CAPS) markers. Six QTLs directly associated with flowering-time and photoperiodic flowering were discovered in the F2 population, whereas eight QTLs were identified in the F3 population. Two QTLs controlling photoperiodic flowering and duration of flowering were common in both populations. In silico annotations of the flanking DNA sequences of mapped SSRs from sequenced cotton (G. hirsutum L.) genome database has identified several potential 'candidate' genes that are known to be associated with regulation of flowering characteristics of plants. The outcome of this research will expand our understanding of the genetic and molecular mechanisms of photoperiodic flowering. Identified markers should be useful for marker-assisted selection in cotton breeding to improve early flowering characteristics. PMID- 29016667 TI - The transcriptomes of cave and surface populations of Gammarus minus (Crustacea: Amphipoda) provide evidence for positive selection on cave downregulated transcripts. AB - Gammarus minus, a freshwater amphipod living in the cave and surface streams in the eastern USA, is an excellent model for investigating evolutionary adaptation to the subterranean environment. RNA-Seq was conducted on one pair of morphologically distinct sister populations inhabiting surface and cave habitats to identify genes that were differentially expressed in the two populations, as well as to compare levels and patterns of genetic variation within and between populations. Of the 104,630 transcripts identified in the transcriptome assembly, 57% had higher average levels of expression in the cave population. After Benjamini-Hochberg correction for multiple tests, 1517 and 551 transcripts were significantly upregulated or downregulated, respectively, in the cave population, indicating an almost three-fold enrichment of cave-upregulated genes. The average level of nucleotide diversity across all transcripts was significantly lower in the cave population. Within the cave population, where the average nucleotide diversity of cave-downregulated transcripts was 75% that of the cave-upregulated transcripts, a highly significant difference, whereas within the spring population the nucleotide diversities of cave-downregulated and cave-upregulated transcripts was virtually identical. Three lines of evidence suggest that the reduced variation in cave downregulated transcripts is due to positive selection in the cave population: 1) the average neutrality index of cave-downregulated genes was < 1, consistent with positive selection, and significantly less than that of cave-upregulated genes; 2) Tajima's D was positively correlated with the cave:surface expression ratio, and 3) cave-downregulated transcripts were significantly more likely to be highly diverged from their surface homologs than cave-upregulated transcripts. Five transcripts had fixed premature termination codons in the cave population. The expression patterns and sequence variation in one such transcript, encoding the DNA repair protein photolyase, were examined in more detail and provide the first evidence for the relaxation of functional constraint in this light-dependent protein in a subterranean population. PMID- 29016666 TI - Novel genes and mutations in patients affected by recurrent pregnancy loss. AB - Recurrent pregnancy loss is a frequently occurring human infertility-related disease affecting ~1% of women. It has been estimated that the cause remains unexplained in >50% cases which strongly suggests that genetic factors may contribute towards the phenotype. Concerning its molecular aetiology numerous studies have had limited success in identifying the disease's genetic causes. This might have been due to the fact that hundreds of genes are involved in each physiological step necessary for guaranteeing reproductive success in mammals. In such scenario, next generation sequencing provides a potentially interesting tool for research into recurrent pregnancy loss causative mutations. The present study involved whole-exome sequencing and an innovative bioinformatics analysis, for the first time, in 49 unrelated women affected by recurrent pregnancy loss. We identified 27 coding variants (22 genes) potentially related to the phenotype (41% of patients). The affected genes, which were enriched by potentially deleterious sequence variants, belonged to distinct molecular cascades playing key roles in implantation/pregnancy biology. Using a quantum chemical approach method we established that mutations in MMP-10 and FGA proteins led to substantial energetic modifications suggesting an impact on their functions and/or stability. The next generation sequencing and bioinformatics approaches presented here represent an efficient way to find mutations, having potentially moderate/strong functional effects, associated with recurrent pregnancy loss aetiology. We consider that some of these variants (and genes) represent probable future biomarkers for recurrent pregnancy loss. PMID- 29016668 TI - Diversity of clinical isolates of Aspergillus terreus in antifungal susceptibilities, genotypes and virulence in Galleria mellonella model: Comparison between respiratory and ear isolates. AB - We analyzed the antifungal susceptibility profiles, genotypes, and virulence of clinical Aspergillus terreus isolates from six university hospitals in South Korea. Thirty one isolates of A. terreus, comprising 15 respiratory and 16 ear isolates were assessed. Microsatellite genotyping was performed, and genetic similarity was assessed by calculating the Jaccard index. Virulence was evaluated by Galleria mellonella survival assay. All 31 isolates were susceptible to itraconazole, posaconazole, and voriconazole, while 23 (74.2%) and 6 (19.4%) showed amphotericin B (AMB) minimum inhibitory concentrations (MICs) of <= 1 mg/L and > 4 mg/L, respectively. Notably, respiratory isolates showed significantly higher geometric mean MICs than ear isolates to AMB (2.41 vs. 0.48 mg/L), itraconazole (0.40 vs. 0.19 mg/L), posaconazole (0.16 vs. 0.08 mg/L), and voriconazole (0.76 vs. 0.31 mg/L) (all, P <0.05). Microsatellite genotyping separated the 31 isolates into 27 types, but the dendrogram demonstrated a closer genotypic relatedness among isolates from the same body site (ear or respiratory tract); in particular, the majority of ear isolates clustered together. Individual isolates varied markedly in their ability to kill infected G. mellonella after 72 h, but virulence did not show significant differences according to source (ear or respiratory tract), genotype, or antifungal susceptibility. The current study shows the marked diversity of clinical isolates of A. terreus in terms of antifungal susceptibilities, genotypes and virulence in the G. mellonella model, and ear isolates from Korean hospitals may have lower AMB or triazole MICs than respiratory isolates. PMID- 29016669 TI - Major depressive disorder and suicide risk among adult outpatients at several general hospitals in a Chinese Han population. AB - BACKGROUND: Somatic complaints are often the presenting symptoms of major depressive disorder (MDD) in the outpatient context, because this may go unrecognized. It is well understood that MDD carries an increased risk of suicide. This study aimed to identify the risk factors and association with both MDD and suicidality among Han Chinese outpatients. METHODS: A multicenter study was carried out in 5189 outpatient adults (>=18 years old) in four general hospitals in Guangzhou, China. The 1392 patients who had the Patient Health Questionnaire-9 (PHQ-9) score >= 5, indicating depressive symptoms were offered an interview with a psychiatrist by the Mini International Neuropsychiatric Interview (MINI); 819 patients consented and completed the MINI interview. MINI module B was used to assess suicidality. Stepwise binary logistic models were used to estimate the relationship between a significant risk factor and suicide or MDD. According to with or without MDD, the secondary analysis was performed using the logistic regression model for the risk of suicidility. RESULTS: The current prevalence of MDD and the one month prevalence of suicidality were 3.7% and 2.3% respectively. The odds ratio of suicidality in women was more than twice that in men (OR = 2.62; 95% CI 1.45-4.76). Other risk factors which were significantly associated with suicidality were: living alone, higher education, self-reported depression, getting psychiatric diagnoses (MDD, anxiety disorders, and bipolar disorders). Significant risk factors for MDD were also noticed, such as comorbid anxiety disorders, self-reported anxiety, insomnia, suicidal ideation. LIMITATION: It's a cross-sectional study in outpatient clinics using self-report questionnaires. CONCLUSION: This study provides valuable data about the risk factors and association of MDD and suicide risk in adult outpatients in Han Chinese. Those factors allow better the employment of preventative measures. PMID- 29016670 TI - A novel function of N-linked glycoproteins, alpha-2-HS-glycoprotein and hemopexin: Implications for small molecule compound-mediated neuroprotection. AB - Therapeutic agents to the central nervous system (CNS) need to be efficiently delivered to the target site of action at appropriate therapeutic levels. However, a limited number of effective drugs for the treatment of neurological diseases has been developed thus far. Further, the pharmacological mechanisms by which such therapeutic agents can protect neurons from cell death have not been fully understood. We have previously reported the novel small-molecule compound, 2-[mesityl(methyl)amino]-N-[4-(pyridin-2-yl)-1H-imidazol-2-yl] acetamide trihydrochloride (WN1316), as a unique neuroprotectant against oxidative injury and a highly promising remedy for the treatment of amyotrophic lateral sclerosis (ALS). One of the remarkable characteristics of WN1316 is that its efficacious doses in ALS mouse models are much less than those against oxidative injury in cultured human neuronal cells. It is also noted that the WN1316 cytoprotective activity observed in cultured cells is totally dependent upon the addition of fetal bovine serum in culture medium. These findings led us to postulate some serum factors being tightly linked to the WN1316 efficacy. In this study, we sieved through fetal bovine serum proteins and identified two N-linked glycoproteins, alpha-2-HS-glycoprotein (AHSG) and hemopexin (HPX), requisites to exert the WN1316 cytoprotective activity against oxidative injury in neuronal cells in vitro. Notably, the removal of glycan chains from these molecules did not affect the WN1316 cytoprotective activity. Thus, two glycoproteins, AHSG and HPX, represent a pivotal glycoprotein of the cytoprotective activity for WN1316, showing a concrete evidence for the novel glycan-independent function of serum glycoproteins in neuroprotective drug efficacy. PMID- 29016671 TI - Prognostic and clinicopathological value of Twist expression in breast cancer: A meta-analysis. AB - BACKGROUND: Despite initial indications that the transcription factor Twist could be used as a breast cancer prognostic marker, there still exists some controversy about its reliability. Thus, the aim of the present study was to assess the relationship between Twist expression and prognosis in breast carcinoma. MATERIALS AND METHODS: We identified eligible studies that reported an association between Twist expression and breast cancer prognosis by searching the literature in PubMed, Embase, the Cochrane Library, and Web of Science databases, through June 5, 2017. Studies investigating Twist protein or mRNA expression as well as reporting survival data in breast cancer were included. The pooled hazard ratio (HR) and odds radio (OR) with a 95% confidence interval (95% CI) were used to estimate associations. RESULTS: A total of 2,671 patients from seven included studies were assessed, and the data indicated that increased Twist expression significantly correlated with poor overall survival (OS) (HR, 1.15; 95% CI, 1.00 1.33; P = 0.04) in breast cancer. In addition, we also observed a significant correlation of elevated Twist expression with larger tumor size (OR, 1.92; 95% CI, 1.31-2.81; P = 0.0009), lymph node involvement (OR, 3.81; 95% CI, 1.16-12.54; P = 0.03), higher nuclear grade (OR, 1.45; 95% CI, 1.06-2.00; P = 0.02), and positive human epidermal growth factor receptor 2 (HER2) status (OR, 1.49; 95% CI, 1.06-2.09; P = 0.02). However, no correlation between Twist expression and disease-free survival (DFS), age, estrogen receptor (ER) status, and progesterone receptor (PR) status was observed. CONCLUSIONS: Our results demonstrate that Twist over-expression is a statistically significant indicator of OS in breast cancer. In addition, our meta-analysis shows that increased Twist expression is significantly associated with larger tumor size, lymph node involvement, higher nuclear grade, and positive HER2 status. PMID- 29016672 TI - The interaction of arsenic and N-butyl-N-(4-hydroxybutyl)nitrosamine on urothelial carcinogenesis in mice. AB - The bladder is an important organ for the storage of excreted water and metabolites. If metabolites with carcinogenic characteristics are present in urine, the urothelial lining of the bladder could be damaged and genetically altered. In this study, we analyzed the interaction of arsenic and N-butyl-N-(4 hydroxybutyl)nitrosamine (BBN) on mouse bladder carcinogenesis. Our previous study found that arsenic affects BBN-altered urothelial enzymatic activity, protein expression, DNA oxidation and global DNA CpG methylation levels. In this study, two mouse models were used. First, after administering a co-treatment of BBN and arsenic for 20 weeks, BBN alone led to a urothelial carcinoma formation of 20%, and arsenic promoted a BBN-induced urothelial carcinoma formation of 10%. The protein expression of GSTM1, GSTO1, NQO1, and p21 did not change by arsenic along with the BBN co-treatment, but the Sp1 expression increased. In the second mouse model, BBN was a pretreatment promoter; arsenic dose-dependently deteriorated BBN-promoted dysplasia by 10% and 40% at 10 ppm and 100 ppm, respectively. Conversely, BBN pretreatment also accelerated arsenic-induced dysplasia by 30%. The urothelial carcinogenic effect reversed after ceasing BBN for a period of 20 weeks. In summary, three conclusions were drawn from this study. The first is the mutual promotion of arsenic and BBN in bladder carcinogenesis. Second, arsenic dosages without bladder carcinogenicity (10 ppm) or with slight carcinogenicity (100 ppm) promote BBN-induced mice bladder cancer progression. Finally, the dysplastic urothelium had reverted to near-normal morphology after ceasing BBN intake for 20 weeks, providing a good suggestion for people who want to quit smoking. PMID- 29016673 TI - A systematic review and meta-analysis comparing combined intravenous and topical tranexamic acid with intravenous administration alone in THA. AB - PURPOSE: To compare the effectiveness and safety of combined intravenous and topical tranexamic acid with intravenous use alone in THA. METHODS: The electronic databases MEDLINE, EMBASE, BIOSIS, Cochrane central, and further adapted for Google and Google Scholar internet, last updated on Dec 30, 2016, were searched. Evaluated outcomes included total blood loss, transfusion rate, maximum postoperative Hb drop, and incidence of thromboembolic complications. The standard mean difference (SMD) or the relative risk (RR) was calculated for continuous or dichotomous data respectively. The quality of the trial was assessed, and meta-analyses were performed with the Cochrane Collaboration's RevMan 5.0 software. RESULTS: Five RCTs with 457 patients were included. Combined TXA administration reduced blood loss (SMD, 1.39; 95%CI, 0.55 to 2.23; P<0.00001, I2 = 94%), hemoglobin decline (SMD, 0.84; 95%CI, 0.13 to 1.54; P = 0.01, I2 = 83%) and the need for transfusion (RR, 2.58; 95%CI, 1.59 to 4.18; P = 0.65, I2 = 0%) without increasing the rate of thromboembolic complications significantly (RR, 0.83; 95%CI, 0.27 to 2.54; P = 0.81, I2 = 0%). CONCLUSION: The present study has emphasized that combined TXA administration can effectively reduce blood loss, hemoglobin decline and the need for transfusion without increasing the rate of thromboembolic complications. PMID- 29016674 TI - Re-evaluation of IL-10 signaling reveals novel insights on the contribution of the intracellular domain of the IL-10R2 chain. AB - Interleukin-10 (IL-10) is an anti-inflammatory cytokine that plays a key role in maintaining immune homeostasis. IL-10-mediated responses are triggered upon binding to a heterodimeric receptor complex consisting of IL-10 receptor (IL 10R)1 and IL-10R2. Engagement of the IL-10R complex activates the intracellular kinases Jak1 and Tyk2, but the exact roles of IL-10R2 and IL-10R2-associated signaling via Tyk2 remain unclear. To elucidate the contribution of IL-10R2 and its signaling to IL-10 activity, we re-evaluated IL-10-mediated responses on bone marrow-derived dendritic cells, macrophages and mast cells. By using bone marrow from IL-10R-/- mice it was revealed that IL-10-mediated responses depend on both IL-10R1 and IL-10R2 in all three cell types. On the contrary, bone marrow-derived cells from Tyk2-/- mice showed similar responses to IL-10 as wild-type cells, indicating that signaling via this IL-10R2-associated kinase only plays a limited role. Tyk2 was shown to control the amplitude of STAT3 activation and the up regulation of downstream SOCS3 expression. SOCS3 up-regulation was found to be cell-type dependent and correlated with the lack of early suppression of LPS induced TNF-alpha in dendritic cells. Further investigation of the IL-10R complex revealed that both the extracellular and intracellular domains of IL-10R2 influence the conformation of IL-10R1 and that both domains were required for transducing IL-10 signals. This observation highlights a novel role for the intracellular domain of IL-10R2 in the molecular mechanisms of IL-10R activation. PMID- 29016675 TI - Effect of small-sided team sport training and protein intake on muscle mass, physical function and markers of health in older untrained adults: A randomized trial. AB - : The effect of small-sided team sport training and protein intake on muscle mass, physical function, and adaptations important for health in untrained older adults was examined. Forty-eight untrained older (72+/-6 (+/-standard deviation, SD) years men and women were divided into either a team sport group ingesting a drink high in protein (18 g) immediately and 3 h after each training session (TS HP, n = 13), a team sport group ingesting an isocaloric drink with low protein content (3 g; TS-LP, n = 18), or a control group continuing their normal activities (CON, n = 17). The team sport training was performed as ~20 min of small-sided ball games twice a week over 12 weeks. After the intervention period, leg muscle mass was 0.6 kg higher (P = 0.047) in TS-HP, with no effect in TS-LP. In TS-HP, number of sit-to-stand repetitions increased (1.2+/-0.6, P = 0.054), time to perform 2.45 m up-and-go was lower (0.7+/-0.3 s, P = 0.03) and number of arm curl repetitions increased (3.5+/-1.2, P = 0.01), whereas in TS-LP only number of repetitions in sit-to-stand was higher (1.6+/-0.6, P = 0.01). In TS-LP, reductions were observed in total and abdominal fat mass (1.2+/-0.5 and 0.4+/-0.2 kg, P = 0.03 and P = 0.02, respectively), heart rate at rest (9+/-3 bpm, P = 0.002) and plasma C-reactive protein (1.8+/-0.8 mmol/L, P = 0.03), with no effects in TS-HP. Thus, team sport training improves functional capacity of untrained older adults and increases leg muscle mass only when ingesting proteins after training. Furthermore, team sport training followed by intake of drink with low protein content does lower fat mass, heart rate at rest and level of systemic inflammation. TRIAL REGISTRATION: clinicaltrials.gov NCT03120143. PMID- 29016676 TI - Long-term dynamics of Mycoplasma conjunctivae at the wildlife-livestock interface in the Pyrenees. AB - Functional roles of domestic and wild host populations in infectious keratoconjunctivitis (IKC) epidemiology have been extensively discussed claiming a domestic reservoir for the more susceptible wild hosts, however, based on limited data. With the aim to better assess IKC epidemiology in complex host pathogen alpine systems, the long-term infectious dynamics and molecular epidemiology of Mycoplasma conjunctivae was investigated in all host populations from six study areas in the Pyrenees and one in the Cantabrian Mountains (Northern Spain). Detection of M. conjunctivae was performed by qPCR on 3600 eye swabs collected during seven years from hunted wild ungulates and sympatric domestic sheep (n = 1800 animals), and cluster analyses of the strains were performed including previous reported local strains. Mycoplasma conjunctivae was consistently detected in three Pyrenean chamois (Rupicapra p. pyrenaica) populations, as well as in sheep flocks (17.0% of sheep) and occasionally in mouflon (Ovis aries musimon) from the Pyrenees (22.2% in one year/area); statistically associated with ocular clinical signs only in chamois. Chamois populations showed different infection dynamics with low but steady prevalence (4.9%) and significant yearly fluctuations (0.0%- 40.0%). Persistence of specific M. conjunctivae strain clusters in wild host populations is demonstrated for six and nine years. Cross-species transmission between chamois and sheep and chamois and mouflon were also sporadically evidenced. Overall, independent M. conjunctivae sylvatic and domestic cycles occurred at the wildlife-livestock interface in the alpine ecosystems from the Pyrenees with sheep and chamois as the key host species for each cycle, and mouflon as a spill-over host. Host population characteristics and M. conjunctivae strains resulted in different epidemiological scenarios in chamois, ranging from the fading out of the mycoplasma to the epidemic and endemic long-term persistence. These findings highlight the capacity of M. conjunctivae to establish diverse interactions and persist in host populations, also with different transmission conditions. PMID- 29016677 TI - Study on the presence of ochratoxin alpha in cultures of ochratoxigenic and non- ochratoxigenic strains of Aspergillus carbonarius. AB - Ochratoxin A (OTA) is a potent nephrotoxin and carcinogen which is found in a wide variety of common foods and beverages and it is produced by several species of Aspergillus and Penicillium. Ochratoxin alpha (OTalpha), a major metabolite of OTA, has also been reported to occur in cultures of OTA-producing species. However there is some controversial about the participation of OTalpha in the biosynthesis of OTA, mainly because its biosynthesis pathway has not yet been completely characterized. Aspergillus carbonarius is the main responsible source of ochratoxin A (OTA) in food commodities such as wine, grapes or dried vine fruits from main viticultural regions worldwide. However, little is known about the presence of OTalpha in isolates of A. carbonarius. In this study we evaluated the effects of temperature and incubation time on OTalpha production by both OTA and non-OTA-producing strains of A. carbonarius. OTA and OTalpha were detected on the basis of HPLC fluorometric response compared with that of their standards and confirmed by HPLC-MS in selected samples. The non-OTA-producing strains did produce neither OTA nor OTalpha at any of the conditions tested. The OTA producing strains studied were able to produce both OTA and OTalpha in most of the conditions tested. In general, higher amounts of OTA than OTalpha were produced, but a positive correlation in the production of these two metabolites was detected. The lack of production of both OTA and OTalpha in the non-OTA producing strains could be caused by the presence of silent genes or by mutations in functional or regulatory genes involved in OTA production. PMID- 29016678 TI - Can editors save peer review from peer reviewers? AB - Peer review is the gold standard for scientific communication, but its ability to guarantee the quality of published research remains difficult to verify. Recent modeling studies suggest that peer review is sensitive to reviewer misbehavior, and it has been claimed that referees who sabotage work they perceive as competition may severely undermine the quality of publications. Here we examine which aspects of suboptimal reviewing practices most strongly impact quality, and test different mitigating strategies that editors may employ to counter them. We find that the biggest hazard to the quality of published literature is not selfish rejection of high-quality manuscripts but indifferent acceptance of low quality ones. Bypassing or blacklisting bad reviewers and consulting additional reviewers to settle disagreements can reduce but not eliminate the impact. The other editorial strategies we tested do not significantly improve quality, but pairing manuscripts to reviewers unlikely to selfishly reject them and allowing revision of rejected manuscripts minimize rejection of above-average manuscripts. In its current form, peer review offers few incentives for impartial reviewing efforts. Editors can help, but structural changes are more likely to have a stronger impact. PMID- 29016680 TI - Targeted mutagenesis in a human-parasitic nematode. AB - Parasitic nematodes infect over 1 billion people worldwide and cause some of the most common neglected tropical diseases. Despite their prevalence, our understanding of the biology of parasitic nematodes has been limited by the lack of tools for genetic intervention. In particular, it has not yet been possible to generate targeted gene disruptions and mutant phenotypes in any parasitic nematode. Here, we report the development of a method for introducing CRISPR-Cas9 mediated gene disruptions in the human-parasitic threadworm Strongyloides stercoralis. We disrupted the S. stercoralis twitchin gene unc-22, resulting in nematodes with severe motility defects. Ss-unc-22 mutations were resolved by homology-directed repair when a repair template was provided. Omission of a repair template resulted in deletions at the target locus. Ss-unc-22 mutations were heritable; we passed Ss-unc-22 mutants through a host and successfully recovered mutant progeny. Using a similar approach, we also disrupted the unc-22 gene of the rat-parasitic nematode Strongyloides ratti. Our results demonstrate the applicability of CRISPR-Cas9 to parasitic nematodes, and thereby enable future studies of gene function in these medically relevant but previously genetically intractable parasites. PMID- 29016679 TI - Perimenopause and emergence of an Alzheimer's bioenergetic phenotype in brain and periphery. AB - After advanced age, female sex is the major risk factor for Alzheimer's disease (AD). The biological mechanisms underlying the increased AD risk in women remain largely undetermined. Preclinical studies identified the perimenopause to menopause transition, a neuroendocrine transition state unique to the female, as a sex-specific risk factor for AD. In animals, estrogenic regulation of cerebral glucose metabolism (CMRglc) falters during perimenopause. This is evident in glucose hypometabolism and decline in mitochondrial efficiency which is sustained thereafter. This study bridges basic to clinical science to characterize brain bioenergetics in a cohort of forty-three, 40-60 year-old clinically and cognitively normal women at different endocrine transition stages including premenopause (controls, CNT, n = 15), perimenopause (PERI, n = 14) and postmenopause (MENO, n = 14). All participants received clinical, laboratory and neuropsychological examinations, 18F-fluoro-deoxyglucose (FDG)-Positron Emission Tomography (PET) FDG-PET scans to estimate CMRglc, and platelet mitochondrial cytochrome oxidase (COX) activity measures. Statistical parametric mapping and multiple regression models were used to examine clinical, CMRglc and COX data across groups. As expected, the MENO group was older than PERI and controls. Groups were otherwise comparable for clinical measures and distribution of APOE4 genotype. Both MENO and PERI groups exhibited reduced CMRglc in AD-vulnerable regions which was correlated with decline in mitochondrial COX activity compared to CNT (p's<0.001). A gradient in biomarker abnormalities was most pronounced in MENO, intermediate in PERI, and lowest in CNT (p<0.001). Biomarkers correlated with immediate and delayed memory scores (Pearson's 0.26<=r<=0.32, p<=0.05). These findings validate earlier preclinical findings and indicate emergence of bioenergetic deficits in perimenopausal and postmenopausal women, suggesting that the optimal window of opportunity for therapeutic intervention in women is early in the endocrine aging process. PMID- 29016682 TI - Effects of mandibular setback with or without maxillary advancement osteotomies on pharyngeal airways: An overview of systematic reviews. AB - BACKGROUND: Mandibular setback osteotomies potentially lead to narrowing of the pharyngeal airways, subsequently resulting in post-surgical obstructive sleep apnea (OSA). OBJECTIVE: To summarize current evidence from systematic reviews that has evaluated pharyngeal airway changes after mandibular setback with or without concomitant upper jaw osteotomies. METHODOLOGY: PubMed, EMBASE, Web of Science, and Cochrane Library databases were searched with no restriction of language or date. Systematic reviews studying changes in pharyngeal airway dimensions and respiratory parameters after mandibular setback with or without concomitant upper jaw osteotomies have been identified, screened for eligibility, included and analyzed in this study. RESULTS: Six systematic reviews have been included. While isolated mandibular setback osteotomies result in reduced oropharyngeal airway dimensions, the reduction is lesser in cases with concomitant upper jaw osteotomies. Only scarce evidence exists currently to what happens to naso- and hypo-pharyngeal airways. There is no evidence for post surgical OSA, even though some studies reported reduced respiratory parameters after single-jaw mandibular setback with or without concomitant upper jaw osteotomies. CONCLUSION: Although mandibular setback osteotomies reduce pharyngeal airway dimensions, evidence confirming post-surgical OSA was not found. Nevertheless, potential post-surgical OSA should be taken into serious consideration during the treatment planning of particular orthognathic cases. As moderate evidence exists that double-jaw surgeries lead to less compromised post surgical pharyngeal airways, they should be considered as the method of choice especially in cases with severe dentoskeletal Class III deformity. STUDY REGISTRATION: PROSPERO (registration number: CRD42016046484). PMID- 29016681 TI - Heterodimerization of two pore domain K+ channel TASK1 and TALK2 in living heterologous expression systems. AB - Two-pore-domain K+ (K2P) channels sense a wide variety of stimuli such as mechanical stress, inhalational anesthetics, and changes in extracellular pH or temperature. The K2P channel activity forms a background K+ current and, thereby, contributes to resting membrane potentials. Six subfamilies including fifteen subtypes of K2P channels have been identified. Each K2P channel molecule with two pores consists of a homodimer of each subtype. In addition, a few heterodimers mainly within the same subfamilies have been found recently. In the present study, the possibility of heterodimerization between TASK1 (TWIK-Related Acid Sensitive K+ channel) and TALK2 (TWIK-Related Alkaline pH-Activated K+ channel) was examined. These channels belong to separate subfamilies and show extremely different channel properties. Surprisingly, single molecular imaging analyses in this study using a total internal reflection microscope suggested the heterodimerization of TASK1 and TALK2 in a pancreatic cell line, QGP-1. This heterodimer was also detected using a bimolecular fluorescence complementation assay in a HEK293 heterologous expression system. Fluorescence resonance energy transfer analyses showed that the affinity between TASK1 and TALK2 appeared to be close to those of homodimers. Whole-cell patch-clamp recordings revealed that TASK1 currents in HEK293 cells were significantly attenuated by co-expression of a dominant-negative form of TALK2 in comparison with that of wild-type TALK2. The sensitivities of TASK1-TALK2 tandem constructs to extracellular pH and halothane were characterized as a unique hybrid of TASK1 and TALK2. These results suggested that heterodimerization of TASK1 and TALK2 provides cells with the ability to make multiple responses to a variety of physiological and pharmacological stimuli. PMID- 29016683 TI - The epigenetic factor PCAF regulates vascular inflammation and is essential for intimal hyperplasia development. AB - OBJECTIVE: Genetic P300/CBP-associated factor (PCAF) variation affects restenosis risk in patients. PCAF has lysine acetyltransferase activity and promotes nuclear factor kappa-beta (NFkappaB)-mediated inflammation, which drives post interventional intimal hyperplasia development. We studied the contributing role of PCAF in post-interventional intimal hyperplasia. METHODS AND RESULTS: PCAF contribution to inflammation and intimal hyperplasia was assessed in leukocytes, macrophages and vascular smooth muscle cells (vSMCs) in vitro and in a mouse model for intimal hyperplasia, in which a cuff is placed around the femoral artery. PCAF deficiency downregulate CCL2, IL-6 and TNF-alpha expression, as demonstrated on cultured vSMCs, leukocytes and macrophages. PCAF KO mice showed a 71.8% reduction of vSMC-rich intimal hyperplasia, a 73.4% reduction of intima/media ratio and a 63.7% reduction of luminal stenosis after femoral artery cuff placement compared to wild type (WT) mice. The association of PCAF and vascular inflammation was further investigated using the potent natural PCAF inhibitor garcinol. Garcinol treatment reduced CCL2 and TNF-alpha expression, as demonstrated on cultured vSMCs and leukocytes. To assess the effect of garcinol treatment on vascular inflammation we used hypercholesterolemic ApoE*3-Leiden mice. After cuff placement, garcinol treatment resulted in reduced arterial leukocyte and macrophage adherence and infiltration after three days compared to untreated animals. CONCLUSIONS: These results identify a vital role for the lysine acetyltransferase PCAF in the regulation of local inflammation after arterial injury and likely the subsequent vSMC proliferation, responsible for intimal hyperplasia. PMID- 29016684 TI - Performance of the Xpert MTB/RIF assay for the diagnosis of pulmonary tuberculosis and rifampin resistance in a low-incidence, high-resource setting. AB - Performance of the Xpert MTB/RIF assay, designed to simultaneously detect Mycobacterium tuberculosis complex (MTBC) and rifampin (RIF) resistance, has been well documented in low-resource settings with high TB-incidence. However, few studies have assessed its accuracy in low TB incidence settings. We evaluated the performance of Xpert MTB/RIF using clinical sputum specimens routinely collected from suspect pulmonary TB patients over a 4-year time period in San Diego County, California. Xpert MTB/RIF results were compared to acid-fast bacilli (AFB) smear microscopy, mycobacterial culture, and phenotypic drug susceptibility testing (DST). Of 751 sputum specimens, 134 (17.8%) were MTBC culture-positive and 2 (1.5%) were multidrug-resistant (MDR). For the detection of MTBC, Xpert MTB/RIF sensitivity was 89.6% (97.7% and 74.5% in smear-positive and -negative sputa, respectively) and specificity was 97.2%; while AFB smear sensitivity and specificity were 64.9% and 77.8%, respectively. Xpert MTB/RIF detected 35 of 47 smear-negative culture-positive specimens, and excluded 124 of 137 smear-positive culture-negative specimens. Xpert MTB/RIF also correctly excluded 99.2% (121/122) of nontuberculous mycobacteria (NTM) specimens, including all 33 NTM false positives by smear microscopy. For the detection of RIF resistance, Xpert MTB/RIF sensitivity and specificity were 100% and 98.3%, respectively. Our findings demonstrate that Xpert MTB/RIF is able to accurately detect MTBC and RIF resistance in routinely collected respiratory specimens in a low TB-incidence setting, with comparable performance to that achieved in high-incidence settings; and suggest that under these conditions the assay has particular utility in detecting smear-negative TB cases, excluding smear-positive patients without MTBC disease, and differentiating MTBC from NTM. PMID- 29016685 TI - Lactobacillus rhamnosus PB01 (DSM 14870) supplementation affects markers of sperm kinematic parameters in a diet-induced obesity mice model. AB - Probiotics have been proposed as alternatives to pharmacological products in several medical conditions including the modulation of obesity, which is frequently associated with poor semen quality. However, effects of probiotics on male fertility have been less investigated. This study assessed the effect of Lactobacillus rhamnosus PB01 (DSM-14870) on sperm kinematic parameters in Normal weight (NW) and diet-induced obese (DIO) models. NW and DIO C57BL/6NTac mice were divided into two subgroups with or without a single daily dose (1x109CFU) of L. rhamnosus for four weeks. Sperm motility and kinematics together with blood lipid profiles and reproductive hormone levels were assessed using the sperm class analyzer system. Probiotic supplementation increased serum testosterone, LH and FSH levels in both NW and DIO groups resulting in significantly (P<0.05) higher velocity (VSL, VCL and VAP) and percentages of progressively motile sperm and significantly lower percentages of immotile sperm. Other kinematic parameters (Lin, STR, ALH and BCF) were also increased in both probiotic supplemented DIO and NW groups at the 10% level of significance. Probiotic supplemented DIO mice demonstrated significantly higher percentages of progressively motile sperm versus DIO controls. This study demonstrated the potential of L. rhamnosus PB01 as a regulatory agent with positive effects on weight loss and reproductive hormones, significantly improving sperm motility and kinematic parameters in male DIO models. PMID- 29016687 TI - Effect of weekend admission on mortality associated with severe acute kidney injury in England: A propensity score matched, population-based study. AB - BACKGROUND: Increased in-hospital mortality associated with weekend admission has been reported for many acute conditions, but no study has investigated "weekend effect" for acute kidney injury requiring dialysis (AKI-D). METHODS: In this large, propensity score matched cohort of AKI-D, we examined the impact of weekend admission and in-centre nephrology services in 53,170 AKI-D admissions between 1st April 2003 and 31st March 2015 using a hospital episode statistic dataset. Propensity score matching (PSM) was performed to match 4284 weekend admissions with AKI-D with 14,788 admissions on weekdays. RESULTS: Of the 53,170 admissions with AKI-D in the whole dataset, 12,357 (23%) were at weekends. The unadjusted mortality for weekend admissions was significantly higher compared to admissions on weekdays (40.6% versus 39.6%, p 0.046). However, in multivariable analysis of the PSM cohort, the odds of death for weekend admissions with AKI-D was 1.01 (95%CI 0.93,1.09). Mortality was higher for weekend admissions in West Midlands (odds ratio (OR) 1.32, 95% confidence interval (CI) 1.05, 1.66) and lower in East of England (OR 0.77, 95%CI 0.59, 1.00) but was not different to weekday admissions in all other regions. In 2003-04, weekend admissions had lower odds of death (OR 0.45, 95%CI 0.21, 0.96) and in 2010-11 higher odds of death (OR 1.28, 95%CI 1.00, 1.63) but in the other ten years observed, there was no significant difference in mortality between weekday and weekend admissions. Provision of in-centre nephrology services was associated with lower odds of death at 0.57 (95%CI 0.54, 0.62). CONCLUSIONS: Weekend admissions in patients with AKI-D had no effect on mortality. Further research is warranted to elucidate the reasons for the lower mortality in hospitals with in-centre nephrology services. PMID- 29016686 TI - Learning about learning: Mining human brain sub-network biomarkers from fMRI data. AB - Modeling the brain as a functional network can reveal the relationship between distributed neurophysiological processes and functional interactions between brain structures. Existing literature on functional brain networks focuses mainly on a battery of network properties in "resting state" employing, for example, modularity, clustering, or path length among regions. In contrast, we seek to uncover functionally connected subnetworks that predict or correlate with cohort differences and are conserved within the subjects within a cohort. We focus on differences in both the rate of learning as well as overall performance in a sensorimotor task across subjects and develop a principled approach for the discovery of discriminative subgraphs of functional connectivity based on imaging acquired during practice. We discover two statistically significant subgraph regions: one involving multiple regions in the visual cortex and another involving the parietal operculum and planum temporale. High functional coherence in the former characterizes sessions in which subjects take longer to perform the task, while high coherence in the latter is associated with high learning rate (performance improvement across trials). Our proposed methodology is general, in that it can be applied to other cognitive tasks, to study learning or to differentiate between healthy patients and patients with neurological disorders, by revealing the salient interactions among brain regions associated with the observed global state. The discovery of such significant discriminative subgraphs promises a better data-driven understanding of the dynamic brain processes associated with high-level cognitive functions. PMID- 29016688 TI - TLR2/TLR4 activation induces Tregs and suppresses intestinal inflammation caused by Fusobacterium nucleatum in vivo. AB - Toll-like receptors (TLRs) 2 and 4 play critical roles in intestinal inflammation caused by Fusobacterium nucleatum (F. nucleatum) infection, but the role of TLR2/TLR4 in regulation of proinflammatory cytokines remains unknown. In this study, through microarray analysis and qRT-PCR, we showed that TLR2/TLR4 are involved in the F. nucleatum-induced inflammatory signaling pathway in Caco-2 cells, C57BL/6 mice and human clinical specimens. In TLR2-/- and TLR4-/- mice, F. nucleatum infection resulted in increased colonization of the bacteria and production of the proinflammatory cytokines IL-8, IL-1beta and TNF-alpha. In addition, the ratio of Foxp3+ CD4+ T cells in the total CD4+ T cells in TLR2-/- and TLR4-/- mice was less than that in wild-type mice, and the ratio in hybrid mice was more than that in knockout mice, which suggested that TLR2/TLR4 mediated the number of Tregs. Furthermore, it was observed that inflammatory cytokine levels were reduced in TLR2-/- mice after Treg transfer. Thus, these data indicate that TLR2/TLR4 regulate F. nucleatum-induced inflammatory cytokines through Tregs in vivo. PMID- 29016689 TI - Modulation of the gut microbiota by the mixture of fish oil and krill oil in high fat diet-induced obesity mice. AB - Previous studies confirmed that dietary supplements of fish oil and krill oil can alleviate obesity in mice, but the underlying mechanism remains unclear. This study aims to discern whether oil treatment change the structure of the gut microbiota during the obesity alleviation. The ICR mice received high-fat diet (HFD) continuously for 12 weeks after two weeks of acclimatization with a standard chow diet, and the mice fed with a standard chow diet were used as the control. In the groups that received HFD with oil supplementation, the weight gains were attenuated and the liver index, total cholesterol, triglyceride and low-density lipoprotein cholesterol were reduced stepwise compared with the HFD group, and the overall structure of the gut microbiota, which was modulated in the HFD group, was shifted toward the structure found in the control group. Moreover, eighty-two altered operational taxonomic units responsive to oil treatment were identified and nineteen of them differing in one or more parameters associated with obesity. In conclusion, this study confirmed the effect of oil treatment on obesity alleviation, as well as on the microbiota structure alterations. We proposed that further researches are needed to elucidate the causal relationship between obesity alleviation and gut microbiota modulation. PMID- 29016690 TI - Expression profile of amh/Amh during bi-directional sex change in the protogynous orange-spotted grouper Epinephelus coioides. AB - Gonadal differentiation is tightly regulated by the initial sex determining gene and the downstream sex-related genes in vertebrates. However, sex change in fish can alter the sexual fate from one sex to the other. Chemical-induced maleness in the protogynous orange-spotted grouper is transient, and a reversible sex change occurs after the chemical treatment is withdrawn. We used these characteristics to study Amh signaling during bi-directional sex change in the grouper. We successfully induced the female-to-male sex change by chemical (aromatase inhibitor, AI, or methyltestosterone, MT) treatment. A dormant gonad (a low proliferation rate of early germ cells and no characteristics of both sexes) was found during the transient phase of reversible male-to-female sex change after the withdrawal of chemical administration. Our results showed that amh (anti mullerian hormone) and its receptor amhr2 (anti-mullerian hormone receptor type 2) were significantly increased in the gonads during the process of female-to male sex change. Amh is expressed in the Sertoli cells surrounding the type A spermatogonia in the female-to-male grouper. Male-related gene (dmrt1 and sox9) expression was immediately decreased in MT-terminated males during the reversible male-to-female sex change. However, Amh expression was found in the surrounding cells of type A spermatogonia-like cells during the transient phase of reversible male-to-female sex change. This phenomenon is correlated with the dormancy of type A spermatogonia-like cells. Thus, Amh signaling is suggested to play roles in regulating male differentiation during the female-to-male sex change and in inhibiting type-A spermatogonia-like cell proliferation/differentiation during the reversible male-to-female sex change. We suggest that Amh signaling might play dual roles during bi-directional sex change in grouper. PMID- 29016691 TI - Generation of beta-lactoglobulin knock-out goats using CRISPR/Cas9. AB - Goat's milk, considered a substitute for cow's milk, has a high nutritional value. However, goat's milk contains various allergens, predominantly beta lactoglobulin (BLG). In this study, we employed the CRISPR/Cas9 system to target the BLG locus in goat fibroblasts for sgRNA optimization and generate BLG knock out goats through co-injection of Cas9 mRNA and small guide RNAs (sgRNAs) into goat embryos at the one-cell stage. We firstly tested sgRNA editing efficiencies in goat fibroblast cells, and approximately 8.00%-9.09% of the cells were modified in single sgRNA-guided targeting experiment. Among the kids, the genome targeting efficiencies of single sgRNA were 12.5% (10 ng/MUL sg1) and 0% (10 ng/MUL sg2) and efficiencies of dual sgRNAs were 25.0% (25 ng/MUL sg2+sg3 group) and 28.6% (50 ng/MUL sg2+sg3 group). Relative expression of BLG in BLG knock-out goat mammary glands significantly (p < 0.01) decreased as well as other milk protein coding genes, such as CSN1S1, CSN1S2, CSN2, CSN3 and LALBA (p < 0.05). As expected, BLG protein had been abolished in the milk of the BLG knock-out goat. In addition, most of the targeted kids were chimeric (3/4), and their various body tissues were edited simultaneously. Our study thus provides a basis for optimizing the quality of goat milk, which can be applied to biomedical and agricultural research. PMID- 29016693 TI - Driving simulator scenarios and measures to faithfully evaluate risky driving behavior: A comparative study of different driver age groups. AB - To investigate the links between mental workload, age and risky driving, a cross sectional study was conducted on a driving simulator using several established and some novel measures of driving ability and scenarios of varying complexity. A sample of 115 drivers was divided into three age and experience groups: young inexperienced (18-21 years old), adult experienced (25-55 years old) and older adult (70-86 years old). Participants were tested on three different scenarios varying in mental workload from low to high. Additionally, to gain a better understanding of individuals' ability to capture and integrate relevant information in a highly complex visual environment, the participants' perceptual cognitive capacity was evaluated using 3-dimensional multiple object tracking (3D MOT). Results indicate moderate scenario complexity as the best suited to highlight well-documented differences in driving ability between age groups and to elicit naturalistic driving behavior. Furthermore, several of the novel driving measures were shown to provide useful, non-redundant information about driving behavior, complementing more established measures. Finally, 3D-MOT was demonstrated to be an effective predictor of elevated crash risk as well as decreased naturally-adopted mean driving speed, particularly among older adults. In sum, the present experiment demonstrates that in cases of either extreme high or low task demands, drivers can become overloaded or under aroused and thus task measures may lose sensitivity. Moreover, insights from the present study should inform methodological considerations for future driving simulator research. Importantly, future research should continue to investigate the predictive utility of perceptual-cognitive tests in the domain of driving risk assessment. PMID- 29016692 TI - Benefit of early discharge among patients with low-risk pulmonary embolism. AB - Clinical guidelines recommend early discharge of patients with low-risk pulmonary embolism (LRPE). This study measured the overall impact of early discharge of LRPE patients on clinical outcomes and costs in the Veterans Health Administration population. Adult patients with >=1 inpatient diagnosis for pulmonary embolism (PE) (index date) between 10/2011-06/2015, continuous enrollment for >=12 months pre- and 3 months post-index date were included. PE risk stratification was performed using the simplified Pulmonary Embolism Stratification Index. Propensity score matching (PSM) was used to compare 90-day adverse PE events (APEs) [recurrent venous thromboembolism, major bleed and death], hospital-acquired complications (HACs), healthcare utilization, and costs among short (<=2 days) versus long length of stay (LOS). Net clinical benefit was defined as 1 minus the combined rate of APE and HAC. Among 6,746 PE patients, 95.4% were men, 22.0% were African American, and 1,918 had LRPE. Among LRPE patients, only 688 had a short LOS. After 1:1 PSM, there were no differences in APE, but short LOS had fewer HAC (1.5% vs 13.3%, 95% CI: 3.77-19.94) and bacterial pneumonias (5.9% vs 11.7%, 95% CI: 1.24-3.23), resulting in better net clinical benefit (86.9% vs 78.3%, 95% CI: 0.84-0.96). Among long LOS patients, HACs (52) exceeded APEs (14 recurrent DVT, 5 bleeds). Short LOS incurred lower inpatient ($2,164 vs $5,100, 95% CI: $646.8-$5225.0) and total costs ($9,056 vs $12,544, 95% CI: $636.6-$6337.7). LRPE patients with short LOS had better net clinical outcomes at lower costs than matched LRPE patients with long LOS. PMID- 29016694 TI - Efficacy of azole therapy for tegumentary leishmaniasis: A systematic review and meta-analysis. AB - BACKGROUND: Several controlled and uncontrolled studies addressing azole antifungal drugs for cutaneous and mucosal leishmaniasis have been published with inconclusive results. We conducted a systematic literature review of studies evaluating the efficacy and toxicity associated with azole therapy for tegumentary leishmaniasis. METHODOLOGY: PRISMA guidelines for systematic reviews and the Cochrane manual were followed, and the review methodology was registered (PROSPERO; CRD42016048668). Sources included the EMBASE, Web of Science, MEDLINE, LILACS, and IBECS databases along with a manual search of references from evaluated studies. Additional resources such as Google Scholar and clinicaltrials.gov were also searched. We included all studies reporting cure rate after cutaneous or mucosal leishmaniasis treatment with systemic azole drugs, regardless of their design. R software was used to estimate global rates of success and adverse events with each drug. The main outcome of interest was clinical cure, defined as complete re-epithelialization of all lesions. RESULTS: A total of 37 studies involving 1259 patients that reported outcomes after fluconazole (9), ketoconazole (14) and itraconazole (15) treatments were included. Only 14 (38%) were randomized controlled trials (RCT). The pooled azole final efficacy rate was 64% (CI95%: 57-70%) for all studies and 60% (CI95%: 50 70%) (p = 0.41) if only RCTs studies were considered. Twenty-four studies were conducted in the Old World and 13 studies in the Americas. The final efficacy rate according to New and Old World were 62% (CI95%: 43-77%) and 66% (CI95%: 58 73%), respectively. The final efficacy rate of azoles according to species were 89% (CI95%: 50-98%) for L. mexicana; 88% for L. infantum (CI95%: 27-99%); 80% for L. donovani; 53% (CI95%: 29-76%) for L. major; 49% for L. braziliensis (CI95%: 21 78%); and 15% (CI95%: 1-84%) for L. tropica. The cure rates were similar among the fluconazole, ketoconazole and itraconazole group arms (p = 0.89), specifically 61% (CI95%: 48-72%), 64% (CI95%: 44-80%) 65% (CI95%: 56-72%), respectively. Adverse events during fluconazole, itraconazole and ketoconazole therapy were reported in 7% (CI95%: 3-14%), 12% (CI95% 8-19%) and 13% (CI95%: 6 29%) of treated patients, respectively, without difference among them (p = 0.35). This systematic review included studies with small samples and both non comparative and non-randomized studies and the main limitation was the low quality of the available studies. CONCLUSIONS: Available evidence suggests that fluconazole, ketoconazole and itraconazole have similar and modest efficacy rates for tegumentary leishmaniasis treatment. There is insufficient evidence to support the exclusive use of azole therapy as a single agent for leishmaniasis treatment. PMID- 29016695 TI - Oral anticoagulant persistence in patients with non-valvular atrial fibrillation: A cohort study using primary care data in Germany. AB - This study examined characteristics and treatment persistence among patients prescribed oral anticoagulants (OACs) for stroke prevention in non-valvular atrial fibrillation (NVAF). We identified 15,244 patients (51.8% male, 72.7% aged >=70) with NVAF and no prior OAC therapy who were prescribed apixaban (n = 1,303), rivaroxaban (n = 5,742), dabigatran (n = 1,622) or vitamin-K antagonists (VKAs, n = 6,577) between 1-Dec-2012 and 31-Oct-2014 in German primary care (IMS(r) Disease Analyzer). We compared OAC persistence using Cox regression over patients' entire follow-up and using a data-driven time-partitioned approach (before/after 100 days) to handle non-proportional hazards. History of stroke risk factors (stroke/transient ischaemic attack [TIA] 15.2%; thromboembolism 14.1%; hypertension 84.3%) and high bleeding risk (HAS-BLED score>=3 68.4%) was common. Apixaban-prescribed patients had more frequent history of stroke/TIA (19.7%) and high bleeding risk (72.6%) than other OACs. 12-month persistence rates were: VKA 57.5% (95% confidence interval (CI) 56.0-59.0%), rivaroxaban 56.6% (54.9-58.2%), dabigatran 50.1% (47.2-53.1%), apixaban 62.9% (58.8-67.0%). Over entire follow-up, compared to VKA, non-persistence was similar with apixaban (adjusted hazard ratio 1.08, 95% CI 0.95-1.24) but higher with rivaroxaban (1.21, 1.14-1.29) and dabigatran (1.53, 1.40-1.68). Using post-hoc time-partitioned approach: in first 100 days, non-persistence was higher with apixaban (1.37, 1.17 1.59), rivaroxaban (1.41, 1.30-1.53) and dabigatran (1.91, 1.70-2.14) compared to VKA. Compared to apixaban, rivaroxaban non-persistence was similar (1.03, 0.89 1.20), dabigatran was higher (1.39, 1.17-1.66). After 100 days, apixaban non persistence was lower than VKA (0.66, 0.52-0.85); rivaroxaban (0.97, 0.87-1.07) and dabigatran (1.10, 0.95-1.28) were similar to VKA. Furthermore, rivaroxaban (1.46, 1.13-1.88) and dabigatran (1.67, 1.26-2.19) non-persistence was higher than apixaban. This study describes real-world observations on OAC use, particularly early apixaban use following approval for NVAF, in Germany. We identified potential differential OAC prescribing and higher persistence with apixaban than other OACs after 100 days' treatment. Larger studies are needed with longer follow-up to establish long-term patterns. PMID- 29016696 TI - A battery-less and wireless wearable sensor system for identifying bed and chair exits in a pilot trial in hospitalized older people. AB - Falls in hospitals are common, therefore strategies to minimize the impact of these events in older patients and needs to be examined. In this pilot study, we investigate a movement monitoring sensor system for identifying bed and chair exits using a wireless wearable sensor worn by hospitalized older patients. We developed a movement monitoring sensor system that recognizes bed and chair exits. The system consists of a machine learning based activity classifier and a bed and chair exit recognition process based on an activity score function. Twenty-six patients, aged 71 to 93 years old, hospitalized in the Geriatric Evaluation and Management Unit participated in the supervised trials. They wore over their attire a battery-less, lightweight and wireless sensor and performed scripted activities such as getting off the bed and chair. We investigated the system performance in recognizing bed and chair exits in hospital rooms where RFID antennas and readers were in place. The system's acceptability was measured using two surveys with 0-10 likert scales. The first survey measured the change in user perception of the system before and after a trial; the second survey, conducted only at the end of each trial, measured user acceptance of the system based on a multifactor sensor acceptance model. The performance of the system indicated an overall recall of 81.4%, precision of 66.8% and F-score of 72.4% for joint bed and chair exit recognition. Patients demonstrated improved perception of the system after use with overall score change from 7.8 to 9.0 and high acceptance of the system with score >= 6.7 for all acceptance factors. The present pilot study suggests the use of wireless wearable sensors is feasible for detecting bed and chair exits in a hospital environment. PMID- 29016697 TI - Antinuclear antibodies and mortality in the National Health and Nutrition Examination Survey (1999-2004). AB - OBJECTIVE: Recent studies suggest antinuclear antibodies (ANA) may be related to mortality risk, but evidence is sparse and inconclusive. Thus, we investigated ANA associations with all-cause and cause-specific mortality in U.S. adults. METHODS: Our sample included 3357 adults (ages >=20 years) from the 1999-2004 National Health and Nutrition Examination Survey with ANA measurements (1:80 dilution) and mortality data through 2011 (median follow-up: 9.4 years). We estimated hazard ratios (HRs) and 95% confidence intervals (CIs) via weighted Cox regression to assess ANA associations with mortality from all causes, cardiovascular disease (CVD), and cancer. Models adjusted for age, sex, race/ethnicity, education, and obesity. Analyses examined mortality in the full sample and in subgroups based on self-reported histories of CVD and cancer, both overall and stratified by sex and age at enrollment. RESULTS: Overall, ANA were not strongly associated with death from all causes (HR: 1.13; CI: 0.79, 1.60), from CVD (HR: 1.60; CI: 0.80, 3.20), or from cancer (HR: 1.58; CI: 0.75, 3.33), though all three HR estimates exceeded 1. In the subgroup with a history of cancer, ANA were associated with elevated all-cause mortality in men (HR: 2.28; CI: 1.01, 5.14) and in participants who enrolled at age >=75 years (HR: 1.99; CI: 1.04, 3.80). CONCLUSION: These findings suggest that ANA are not strongly associated with mortality in the general population. Longitudinal studies with repeated assessments are needed to understand the temporal relationship between ANA, aging-associated diseases, and mortality. PMID- 29016700 TI - A parallel approximate string matching under Levenshtein distance on graphics processing units using warp-shuffle operations. AB - Approximate string matching with k-differences has a number of practical applications, ranging from pattern recognition to computational biology. This paper proposes an efficient memory-access algorithm for parallel approximate string matching with k-differences on Graphics Processing Units (GPUs). In the proposed algorithm, all threads in the same GPUs warp share data using warp shuffle operation instead of accessing the shared memory. Moreover, we implement the proposed algorithm by exploiting the memory structure of GPUs to optimize its performance. Experiment results for real DNA packages revealed that the performance of the proposed algorithm and its implementation archived up to 122.64 and 1.53 times compared to that of sequential algorithm on CPU and previous parallel approximate string matching algorithm on GPUs, respectively. PMID- 29016698 TI - Properties of halogenated and sulfonated porphyrins relevant for the selection of photosensitizers in anticancer and antimicrobial therapies. AB - The impact of substituents on the photochemical and biological properties of tetraphenylporphyrin-based photosensitizers for photodynamic therapy of cancer (PDT) as well as photodynamic inactivation of microorganisms (PDI) was examined. Spectroscopic and physicochemical properties were related with therapeutic efficacy in PDT of cancer and PDI of microbial cells in vitro. Less polar halogenated, sulfonamide porphyrins were most readily taken up by cells compared to hydrophilic and anionic porphyrins. The uptake and PDT of a hydrophilic porphyrin was significantly enhanced with incorporation in polymeric micelles (Pluronic L121). Photodynamic inactivation studies were performed against Gram positive (S. aureus, E. faecalis), Gram-negative bacteria (E. coli, P. aeruginosa, S. marcescens) and fungal yeast (C. albicans). We observed a 6 logs reduction of S. aureus after irradiation (10 J/cm2) in the presence of 20 MUM of hydrophilic porphyrin, but this was not improved with incorporation in Pluronic L121. A 2-3 logs reduction was obtained for E. coli using similar doses, and a decrease of 3-4 logs was achieved for C. albicans. Rational substitution of tetraphenylporphyrins improves their photodynamic properties and informs on strategies to obtain photosensitizers for efficient PDT and PDI. However, the design of the photosensitizers must be accompanied by the development of tailored drug formulations. PMID- 29016699 TI - MiR-137 inhibited cell proliferation and migration of vascular smooth muscle cells via targeting IGFBP-5 and modulating the mTOR/STAT3 signaling. AB - Abnormal proliferation of vascular smooth muscle cells (VSMCs) contributes to the development of cardiovascular diseases. Studies have shown the great impact of microRNAs (miRNAs) on the cell proliferation of VSMCs. This study examined the effects of miR-137 on the cell proliferation and migration of VSMCs and also explored the underlying molecular mechanisms. The mRNA and protein expression levels were determined by qRT-PCR and western blot assays, respectively. The CCK 8 assay, wound healing assay and transwell migration assay were performed to measure cell proliferation and migration of VSMCs. The miR-137-targeted 3'untranslated region of insulin-like growth factor-binding protein-5 (IGFBP-5) was confirmed by luciferase reporter assay. Platelet-derived growth factor-bb (PDGF-bb) treatment enhanced cell proliferation and suppressed the expression of miR-137 in VSMCs. The gain-of-function and loss-of-function assays showed that overexpression of miR-137 suppressed the cell proliferation and migration, and also inhibited the expression of matrix genes of VSMCs; down-regulation of miR 137 had the opposite effects on VSMCs. Bioinformatics analysis and luciferase report assay results showed that IGFBP-5 was a direct target of miR-137, and miR 137 overexpression suppressed the IGFBP-5 expression and down-regulation of miR 137 increased the IGFBP-5 expression in VSMCs. PDGF-bb treatment also increased the IGFBP-5 mRNA expression. In addition, enforced expression of IGFBP-5 reversed the inhibitory effects of miR-137 on cell proliferation and migration of VSMCs. More importantly, overexpression of miR-137 also suppressed the activity of mTOR/STAT3 signaling in VSMCs. Taken together, the results suggest that miR-137 may suppress cell proliferation and migration of VSMCs via targeting IGFBP-5 and modulating mTOR/STAT3 signaling pathway. PMID- 29016702 TI - A Commentary on the Limits of Alcoholic Beverage Policies. AB - Providing one set of policy measures for all countries as if they were a single, homogeneous entity does not appear to be evidence-based, according to recent research on the effectiveness of alcoholic beverage control policies. Contextual and cultural determinants-social, economic, demographic, cultural and political appear to be major factors of influencing change in drinking trends, drinking patterns and drinking-related harms. The variable interplay between contextual determinants and alcohol control policy measures implies diverse impacts on consumption and harm according to time, and to the different countries and groups of countries. In addition, epidemiology research manifests some limitations when applied to alcohol drinking and results are transferred from one culture to another. The conditions of individual cultures and countries should be considered when planning and evaluating alcohol control policies. PMID- 29016701 TI - Modifying Alcohol Consumption to Reduce Obesity: A Randomized Controlled Feasibility Study of a Complex Community-based Intervention for Men. AB - Objectives: Being obese and drinking more than 14 units of alcohol per week places men at very high risk of developing liver disease. This study assessed the feasibility of a trial to reduce alcohol consumption. It tested the recruitment strategy, engagement with the intervention, retention and study acceptability. Methods: Men aged 35-64 years who drank >21 units of alcohol per week and had a BMI > 30 were recruited by two methods: from GP patient registers and by community outreach. The intervention was delivered by a face to face session followed by a series of text messages. Trained lay people (Study Coordinators) delivered the face to face session. Participants were followed up for 5 months from baseline to measure weekly alcohol consumption and BMI. Results: The recruitment target of 60 was exceeded, with 69 men recruited and randomized. At baseline, almost all the participants (95%) exceeded the threshold for a 19-fold increase in the risk of dying from liver disease. The intervention was delivered with high fidelity. A very high follow-up rate was achieved (98%) and the outcomes for the full trial were measured. Process evaluation showed that participants responded as intended to key steps in the behaviour change strategy. The acceptability of the study methods was high: e.g. 80% of men would recommend the study to others. Conclusions: This feasibility study identified a group at high risk of liver disease. It showed that a full trial could be conducted to test the effectiveness and cost-effectiveness of the intervention. Trial registration: Current controlled trials: ISRCTN55309164. Trial funding: National Institute for Health Research Health Technology Assessment (NIHR HTA). Short summary: This feasibility study recruited 69 men at high risk of developing liver disease. The novel intervention, to reduce alcohol consumption through the motivation of weight loss, was well received. A very high follow-up rate was achieved. Process evaluation showed that participants engaged with key components of the behaviour change strategy. PMID- 29016703 TI - beta-arrestin 2 mediates cardiac ischemia-reperfusion injury via inhibiting GPCR independent cell survival signalling. AB - Aims: Ischemic heart disease is a leading cause of morbidity and mortality worldwide. Although timely restoration of coronary blood flow (reperfusion) is the most effective therapeutics of myocardial infarction, reperfusion causes further cardiac damage, i.e. ischemia-reperfusion (I/R) injury. beta-arrestins (Arrbs) have been traditionally defined as negative regulators of G protein coupled receptor (GPCR) signalling, but recent studies have shown that they are essential for G protein-independent, GPCR-mediated biased signalling. Several ligands have been reported to be cardioprotective via Arrbs dependent pathway. However, it is unclear whether Arrbs exert receptor-independent physiological or pathological functions in the heart. Here, we sought to determine whether and how Arrbs play a role in regulating cardiomyocyte viability and myocardial remodelling following I/R injury. Methods and results: The expression of beta arrestin 2 (Arrb2), but not beta-arrestin 1 (Arrb1), is upregulated in rat hearts subjected to I/R injury, or in cultured neonatal rat cardiomyocytes treated with hypoxia-reoxygenation (H/R) injury. Deficiency of Arrb2 in cultured neonatal rat cardiomyocytes alleviates H/R-induced cardiomyocyte death and Arrb2-/- mice are resistant to myocardial damage caused by I/R injury. In contrast, upregulation of Arrb2 triggers cardiomyocyte death and exaggerates I/R (or H/R)-induced detrimental effects. Mechanically, Arrb2 induces cardiomyocyte death by interacting with the p85 subunit of PI3K, and negatively regulating the formation of p85-PI3K/CaV3 survival complex, thus blocking activation of PI3K-Akt-GSK3beta cell survival signalling pathway. Conclusion: We define an upregulation of Arrb2 as a pathogenic factor in cardiac I/R injury, and also reveal a novel GPCR independent mechanism of Arrb2-mediated cell death signalling in the heart. PMID- 29016705 TI - Is carbohydrate deficient transferrin (CDT) a useful biomarker to identify alcohol abuse in advanced liver fibrosis? PMID- 29016704 TI - Investigation of cardiac fibroblasts using myocardial slices. AB - Aims: Cardiac fibroblasts (CFs) are considered the principal regulators of cardiac fibrosis. Factors that influence CF activity are difficult to determine. When isolated and cultured in vitro, CFs undergo rapid phenotypic changes including increased expression of alpha-SMA. Here we describe a new model to study CFs and their response to pharmacological and mechanical stimuli using in vitro cultured mouse, dog and human myocardial slices. Methods and results: Unloading of myocardial slices induced CF proliferation without alpha-SMA expression up to 7 days in culture. CFs migrating onto the culture plastic support or cultured on glass expressed alphaSMA within 3 days. The cells on the slice remained alphaSMA(-) despite transforming growth factor-beta (20 ng/ml) or angiotensin II (200 uM) stimulation. When diastolic load was applied to myocardial slices using A-shaped stretchers, CF proliferation was significantly prevented at Days 3 and 7 (P < 0.001). Conclusions: Myocardial slices allow the study of CFs in a multicellular environment and may be used to effectively study mechanisms of cardiac fibrosis and potential targets. PMID- 29016707 TI - Minimal Clinical Impact of Intraoperative Examination of Sentinel Lymph Nodes in Patients With Ductal Carcinoma In Situ: An Opportunity for Improved Resource Utilization. AB - Objectives: There is little information regarding sentinel lymph node (SLN) frozen-section examination in patients with a history of ductal carcinoma in situ (DCIS). We evaluated the usage, clinical impact, and pathology resources used for SLN cryosectioning in mastectomy cases with a DCIS history. Methods: Mastectomies with SLNs submitted from 2012 to 2013 at a tertiary care center were analyzed. Medicare reimbursement was used to estimate pathology health care expenditures of intraoperative frozen sections. Results: There was no difference in the rate of SLN frozen-section examination or parts submitted, total blocks frozen, total blocks submitted, or total SLNs identified per case between the DCIS (n = 139) and invasive (n = 369) groups. Nine patients with DCIS had SLN metastases (three macrometastases, two micrometastases, and four isolated tumor cells), all of which were examined by frozen section. Only the macrometastases were identified by cryosectioning, which led to two synchronous axillary lymph node dissections that did not yield any additional positive nodes. A total of $19,313 was spent for pathology per DCIS patient with surgical management affected, whereas only $1,019 was spent per invasive carcinoma patient affected. Conclusions: Decreasing SLN frozen-section use in patients with a history of DCIS represents an opportunity for pathology cost containment. PMID- 29016708 TI - Testing the Efficacy of Alcohol Labels with Standard Drink Information and National Drinking Guidelines on Consumers' Ability to Estimate Alcohol Consumption. AB - Aims: Despite the introduction of national drinking guidelines in Canada, there is limited public knowledge of them and low understanding of 'standard drinks (SDs)' which limits the likelihood of guidelines affecting drinking behaviour. This study tests the efficacy of alcohol labels with SD information and Canada's Low-Risk Drinking Guidelines (LRDGs) as compared to %ABV labels on consumers' ability to estimate alcohol intake. It also examines the label size and format that best supports adults' ability to make informed drinking choices. Methods: This research consisted of a between-groups experiment (n = 2016) in which participants each viewed one of six labels. Using an online survey, participants viewed an alcohol label and were asked to estimate: (a) the amount in a SD; (b) the number of SDs in an alcohol container and (c) the number of SDs to consume to reach the recommended daily limit in Canada's LRDG. Results: Results indicated that labels with SD and LRDG information facilitated more accurate estimates of alcohol consumption and awareness of safer drinking limits across different beverage types (12.6% to 58.9% increase in accuracy), and labels were strongly supported among the majority (66.2%) of participants. Conclusion: Labels with SD and LRDG information constitute a more efficacious means of supporting accurate estimates of alcohol consumption than %ABV labels, and provide evidence to inform potential changes to alcohol labelling regulations. Further research testing labels in real-world settings is needed. Short summary: Results indicate that the introduction of enhanced alcohol labels combining standard drink information and national drinking guidelines may be an effective way to improve drinkers' ability to accurately assess alcohol consumption and monitor intake relative to guidelines. Overall support for enhanced labels suggests probable acceptability of introduction at a population level. PMID- 29016706 TI - MicroRNA-532 protects the heart in acute myocardial infarction, and represses prss23, a positive regulator of endothelial-to-mesenchymal transition. AB - Aims: Acute myocardial infarction (MI) leads to cardiac remodelling and development of heart failure. Insufficient myocardial capillary density after MI is considered a critical determinant of this process. MicroRNAs (miRs), negative regulators of gene expression, have emerged as important players in MI. We previously showed that miR-532-5p (miR-532) is up-regulated by the beta-arrestin biased beta-adrenergic receptor antagonist (beta-blocker) carvedilol, which activates protective pathways in the heart independent of G protein-mediated second messenger signalling. Here, we hypothesize that beta2-adrenergic receptor/beta-arrestin-responsive miR-532 confers cardioprotection against MI. Methods and results: Using cultured cardiac endothelial cell (CEC) and in vivo approaches, we show that CECs lacking miR-532 exhibit increased transition to a fibroblast-like phenotype via endothelial-to-mesenchymal transition (EndMT), while CECs over-expressing miR-532 display decreased EndMT. We also demonstrate that knockdown of miR-532 in mice causes abnormalities in cardiac structure and function as well as reduces CEC proliferation and cardiac vascularization after MI. Mechanistically, cardioprotection elicited by miR-532 is in part attributed to direct repression of a positive regulator of maladaptive EndMT, prss23 (a protease serine 23) in CECs. Conclusions: In conclusion, these findings reveal a pivotal role for miR-532-prss23 axis in regulating CEC function after MI, and this novel axis could be suitable for therapeutic intervention in ischemic heart disease. PMID- 29016709 TI - The Role of General Practitioners in the 2015 French Guidelines on Alcohol Misuse. PMID- 29016711 TI - Personalized Digital Interventions Showed no Impact on Risky Drinking in Young Adults: A Pilot Randomized Controlled Trial. AB - Aim: To assess the effectiveness of two personalized digital interventions (OneTooMany and Drinks Meter) compared to controls. Method: Randomized controlled trial (AEARCTR-0,001,082). Volunteers for the study, aged 18-30, were randomly allocated to one of two interventions or one of two control groups and were followed up 4 weeks later. Primary outcomes were AUDIT-C, drinking harms and pre loading. Drinks Meter provided participants with brief screening and advice for alcohol in addition to normative feedback, information on calories consumed and money spent. OneTooMany presented a series of socially embarrassing scenarios that may occur when drinking, and participants were scored according to if/how recently they had been experienced. Results: The study failed to recruit and obtain sufficient follow-up data to reach a prior estimated power for detecting a difference between groups and there was no indication in the analysable sample of 402 subjects of a difference on the primary outcome measures (Drinks Meter; AUDIT C IRR = 0.98 (0.89-1.09); Pre-loading IRR = 1.01 (0.95-1.07); Harms IRR = 0.97 (0.79-1.20); OneTooMany; AUDIT-C IRR = 0.96 (0.86-1.07); Pre-loading IRR = 0.99 (0.93-1.06); Harms IRR = 1.16 (0.94-1.43). Conclusion: Further research is needed on the efficacy of such instruments and their ingredients. However, recruitment and follow-up are a challenge. PMID- 29016710 TI - Preliminary Evidence for Disrupted Nucleus Accumbens Reactivity and Connectivity to Reward in Binge Drinkers. AB - Aims: Dysfunctional brain reward circuitry, particularly in the nucleus accumbens (NAcc), has been proposed as a risk factor for alcohol use disorder (AUD). This risk factor may be evident in binge drinkers (BD), who are at high risk for developing AUD. We examined whole-brain and NAcc reactivity to reward in BD compared to non-binge drinkers (NBD), hypothesizing that groups would differ in their neural reactivity and connectivity. Methods: Healthy BD (N = 27) and NBD (N = 23)-none meeting AUD criteria-completed a reward-guessing game, the 'Doors' task, during functional magnetic resonance imaging. We conducted an exploratory whole-brain search for group differences, but given our a priori hypotheses, we also extracted activation from the NAcc to examine reactivity during reward (Win > Loss) and functional connectivity (FC) to the prefrontal cortex. Results: Compared to NBD, BD exhibited greater activation in both the right and left NAcc during reward relative to loss. Additionally, NBD drinkers exhibited positive FC between the NAcc and dorsal anterior cingulate (dACC) whereas the BD showed negative FC between these regions. Furthermore, less NAcc-dACC FC was related to more past month alcohol use. Conclusions: Our results provide preliminary evidence that BD exhibit greater NAcc activation during reward receipt relative to loss. This is consistent with the broader AUD literature and suggests aberrant neural reactivity may precede disorder onset. In addition, BD exhibited less NAcc dACC FC, perhaps reflecting deficient regulation of activation to rewards compared to losses. This profile of reward brain circuitry could represent neural correlates of vulnerability for AUD. Short summary: Healthy binge drinkers, at risk for alcohol use disorder, exhibited greater nucleus accumbens activation during reward relative to loss. In addition, binge drinkers exhibited reduced connectivity between the nucleus accumbens and dorsal anterior cingulate, which was associated with more past month alcohol use. PMID- 29016712 TI - Forty Years of State Alcohol and Pregnancy Policies in the USA: Best Practices for Public Health or Efforts to Restrict Women's Reproductive Rights? AB - Aims: Alcohol consumption during pregnancy remains a public health problem despite >40 years of attention. Little is known about how state policies have evolved and whether policies represent public health goals or efforts to restrict women's reproductive rights. Methods: Our data set includes US state policies from 1970 through 2013 obtained through original legal research and from the National Institute for Alcohol Abuse and Alcoholism's (NIAAA)'s Alcohol Policy Information System. Policies were classified as punitive to women or supportive of them. The association between numbers of punitive policies and supportive policies in 2013 with a measure of state restrictions on reproductive rights and Alcohol Policy Effectiveness Scores (APS) was estimated using a Pearson's correlation. Results: The number of states with alcohol and pregnancy policies has increased from 1 in 1974 to 43 in 2013. Through the 1980s, state policy environments were either punitive or supportive. In the 1990s, mixed punitive and supportive policy environments began to be the norm, with punitive policies added to supportive ones. No association was found between the number of supportive policies in 2013 and a measure of reproductive rights policies or the APS, nor was there an association between the number of punitive policies and the APS. The number of punitive policies was positively associated, however, with restrictions on reproductive rights. Conclusion: Punitive alcohol and pregnancy policies are associated with efforts to restrict women's reproductive rights rather than effective efforts to curb public health harms due to alcohol use in the general population. Future research should explore the effects of alcohol and pregnancy policies. Short Summary: The number of states with alcohol and pregnancy policies has increased since 1970 (1 in 1974 and 43 in 2013). Alcohol and pregnancy policies are becoming increasingly punitive. These punitive policies are associated with efforts to restrict women's reproductive rights rather than policies that effectively curb alcohol-related public health harms. PMID- 29016713 TI - Heavy Drinkers and the Potential Impact of Minimum Unit Pricing-No Single or Simple Effect? AB - Aims: To explore the potential impact of a minimum unit price (MUP: 50 pence per UK unit) on the alcohol consumption of ill Scottish heavy drinkers. Methods: Participants were 639 patients attending alcohol treatment services or admitted to hospital with an alcohol-related condition. From their reported expenditure on alcohol in their index week, and assuming this remained unchanged, we estimated the impact of a MUP (50 ppu) on future consumption. (Around 15% purchased from both the more expensive on-sale outlets (hotels, pubs, bars) and from off-sales (shops and supermarkets). For them we estimated the change in consumption that might follow MUP if (i) they continued this proportion of 'on-sales' purchasing or (ii) their reported expenditure was moved entirely to off-sale purchasing (to maintain consumption levels)). Results: Around 69% of drinkers purchased exclusively off-sale alcohol at <50 ppu. Their drinking, post MUP, may reduce by a mean of 33%. For this group, from a population of very heavy, ill consumers, we were unable to show a differential effect across multiple deprivation quintiles. For other drinkers there might be no reduction, especially if after MUP there were many products priced close to 50 ppu. Moving away from on-sales purchases could support, for some, an increase in consumption. Conclusions: While a proportion of our harmed, heavy drinkers might be able to mitigate the impact of MUP by changing purchasing habits, the majority are predicted to reduce purchasing. This analysis, focusing specifically on harmed drinkers, adds a unique dimension to the evidence base informing current pricing policy. Short Summary: From drink purchasing data of heavy drinkers, we estimated the impact of legislating L0.50 minimum unit price. Over two thirds of drinkers, representing all multiple deprivation quintiles, were predicted to decrease alcohol purchasing; remainder, hypothetically, could maintain consumption. Our data address an important gap within the evidence base informing policy. PMID- 29016714 TI - Low-energy defibrillation with nanosecond electric shocks. AB - Aims: Reliable defibrillation with reduced energy deposition has long been the focus of defibrillation research. We studied the efficacy of single shocks of 300 ns duration in defibrillating rabbit hearts as well as the tissue damage they may cause. Methods and results: New Zealand white rabbit hearts were Langendorff perfused and two planar electrodes were placed on either side of the heart. Shocks of 300 ns duration and 0.3-3 kV amplitude were generated with a transmission line generator. Single nanosecond shocks consistently induced waves of electrical activation, with a stimulation threshold of 0.9 kV (over 3 cm) and consistent activation for shock amplitudes of 1.2 kV or higher (9/9 successful attempts). We induced fibrillation (35 episodes in 12 hearts) and found that single shock nanosecond-defibrillation could consistently be achieved, with a defibrillation threshold of 2.3-2.4 kV (over 3 cm), and consistent success at 3 kV (11/11 successful attempts). Shocks uniformly depolarized the tissue, and the threshold energy needed for nanosecond defibrillation was almost an order of magnitude lower than the energy needed for defibrillation with a monophasic 10 ms shock delivered with the same electrode configuration. For the parameters studied here, nanosecond defibrillation caused no baseline shift of the transmembrane potential (that could be indicative of electroporative damage), no changes in action potential duration, and only a brief change of diastolic interval, for one beat after the shock was delivered. Histological staining with tetrazolium chloride and propidium iodide showed that effective defibrillation was not associated with tissue death or with detectable electroporation anywhere in the heart (six hearts). Conclusion: Nanosecond-defibrillation is a promising technology that may allow clinical defibrillation with profoundly reduced energies. PMID- 29016717 TI - Reply: The role of general practitioners in the 2015 French guidelines on alcohol misuse. PMID- 29016716 TI - "We Have a Right to Know": Exploring Consumer Opinions on Content, Design and Acceptability of Enhanced Alcohol Labels. AB - Aims: This study aimed to refine content and design of an enhanced alcohol label to provide information that best supports informed drinking and to gauge consumer acceptability of enhanced alcohol labels among a subset of consumers. Methods: Five focus groups (n = 45) were conducted with stakeholders and the general public (age 19+) across one jurisdiction in northern Canada. Interviews were transcribed and analyzed using NVivo software. Results: The majority of participants showed strong support for enhanced alcohol labels with an emphasis on the consumers' right to know about the health risks related to alcohol. Participants preferred larger labels that included standard drink (SD) information, national low-risk drinking guidelines presented as a chart with pictograms, cancer health messaging and a pregnancy warning. Supporting introduction of the labels with a web resource and an educational campaign was also recommended. Conclusions: Displaying enhanced labels on alcohol containers that include SD information, low-risk drinking guidelines and other health messaging in an accessible format may be an effective way to better inform drinkers about their consumption and increase awareness of alcohol-related health risks. Introduction of enhanced labels shows potential for consumer support. Short summary: Focus group findings indicate strong support for enhanced alcohol labels displaying SD information, national drinking guidelines, health messaging and a pregnancy warning. Introduction of enhanced alcohol labels in tandem with an educational campaign may be an effective way to better inform Canadian drinkers and shows potential for consumer support. PMID- 29016718 TI - Population Alcohol Consumption as a Predictor of Alcohol-Specific Deaths: A Time Series Analysis of Aggregate Data. AB - Aims: The study examines whether the number of alcohol-specific deaths can be predicted by population total and/or beverage-specific alcohol consumption and if, how precisely. The data are annual series of spirits, wine, beer and total consumption and alcohol-specific deaths in Finland in the years 1969-2015. Methods: We specify a Auto Regressive Distributed Lags model with cointegrated variables, to be used in prediction. In our model, the number of alcohol-specific deaths is the response variable, and log of spirits consumption and log of non spirits consumption, are the explanatory variables. The response variable has one added annual lag and the explanatory variables have both four annual added lags in the model. Results: In our data alcohol-specific deaths, log of spirits and log of non-spirits consumption are significantly cointegrated. The precision of the estimated model is good. The prediction results include prediction of the 2008 downturn in alcohol deaths, using the data from the years 1969-2004, forecasting the as yet unknown 2016 alcohol deaths on the basis of known values of alcohol consumption up to 2016, and forecasts of future (2017-2020) alcohol deaths from 2016 on. Forecasted effects of a proposed Finnish alcohol policy change, leading to six percent total consumption increase, are estimated. Conclusions: The number of alcohol-specific deaths can be predicted with an appropriate time-series regression model on the basis of population consumption. It is important to consider also beverage type because of the improved predictive power. The model is useful in an evaluation of proposed alcohol policy changes. PMID- 29016715 TI - Matrix metalloproteinase-2 knockout prevents angiotensin II-induced vascular injury. AB - Aims: Matrix metalloproteinases (MMPs) have been implicated in the development of hypertension in animal models and humans. Mmp2 deletion did not change Ang II induced blood pressure (BP) rise. However, whether Mmp2 knockout affects angiotensin (Ang) II-induced vascular injury has not been tested. We sought to determine whether Mmp2 knockout will prevent Ang II-induced vascular injury. Methods and results: A fourteen-day Ang II infusion (1000 ng/kg/min, SC) increased systolic BP, decreased vasodilatory responses to acetylcholine, induced mesenteric artery (MA) hypertrophic remodelling, and enhanced MA stiffness in wild-type (WT) mice. Ang II enhanced aortic media and perivascular reactive oxygen species generation, aortic vascular cell adhesion molecule-1 and monocyte chemotactic protein-1 expression, perivascular monocyte/macrophage and T cell infiltration, and the fraction of spleen activated CD4+CD69+ and CD8+CD69+ T cells, and Ly-6Chi monocytes. Study of intracellular signalling showed that Ang II increased phosphorylation of epidermal growth factor receptor and extracellular-signal-regulated kinase 1/2 in vascular smooth muscle cells isolated from WT mice. All these effects were reduced or prevented by Mmp2 knockout, except for systolic BP elevation. Ang II increased Mmp2 expression in immune cells infiltrating the aorta and perivascular fat. Bone marrow (BM) transplantation experiments revealed that in absence of MMP2 in immune cells, Ang II-induced BP elevation was decreased, and that when MMP2 was deficient in either immune or vascular cells, Ang II-induced endothelial dysfunction was blunted. Conclusions: Mmp2 knockout impaired Ang II-induced vascular injury but not BP elevation. BM transplantation revealed a role for immune cells in Ang II-induced BP elevation, and for both vascular and immune cell MMP2 in Ang II-induced endothelial dysfunction. PMID- 29016719 TI - You Wouldn't Sober, You Shouldn't Drunk: A Behavioural Change Approach to Changing Attitudes and Responses to Unwanted Sexual Attention in Pubs and Clubs. AB - Aims: The objective was to evaluate a campaign designed to influence social norms and re-establish boundaries around the issue of unwanted sexual attention in pubs and clubs. In particular, the campaign aimed to raise awareness, and reduce the acceptability, of unwanted sexual attention when drunk. Methods: A before-after with-control group study design was used to evaluate campaign effectiveness. The data was further segmented to explore gender differences and between individuals who reported enjoying going out to get drunk and those who did not. Results: The experimental group with campaign recall demonstrated a significant change in their attitudes to harmful drinking behaviours and unwanted sexual attention compared to the control group. A number of gender differences as well as drink enjoyment-related differences pre- and post-campaign were observed. Female respondents who were able to recall the campaign demonstrated a significantly lower tolerance of unwanted sexual attention than those who were unable to recall it in either the experimental or control regions. The campaign had limited impact on people who enjoy drunken night outs (DNOs). However, those who do not enjoy DNOs demonstrated significantly higher negative attitudes towards harmful drinking post-campaign recall. Conclusion: The campaign was effective in shifting attitudes towards unwanted sexual attention and harmful drinking behaviour. This was particularly observed among female respondents and those who do not enjoy DNOs. Short summary: Drinkaware's 'You Wouldn't Sober, You Shouldn't Drunk' behavioural change campaign targets young adults living in North-West England participating in 'drunken nights out'. The experimental group with campaign recall demonstrated a significant change in their attitudes to harmful drinking behaviours and unwanted sexual attention compared to the control group. PMID- 29016720 TI - Predicting Regulatory Compliance in Beer Advertising on Facebook. AB - Aims: The prevalence of alcohol advertising has been growing on social media platforms. The purpose of this study was to evaluate alcohol advertising on Facebook for regulatory compliance and thematic content. Methods: A total of 50 Budweiser and Bud Light ads posted on Facebook within 1 month of the 2015 NFL Super Bowl were evaluated for compliance with a self-regulated alcohol advertising code and for thematic content. An exploratory sensitivity/specificity analysis was conducted to determine if thematic content could predict code violations. Results: The code violation rate was 82%, with violations prevalent in guidelines prohibiting the association of alcohol with success (Guideline 5) and health benefits (Guideline 3). Overall, 21 thematic content areas were identified. Displaying the product (62%) and adventure/sensation seeking (52%) were the most prevalent. There was perfect specificity (100%) for 10 content areas for detecting any code violation (animals, negative emotions, positive emotions, games/contests/promotions, female characters, minorities, party, sexuality, night-time, sunrise) and high specificity (>80%) for 10 content areas for detecting violations of guidelines intended to protect minors (animals, negative emotions, famous people, friendship, games/contests/promotions, minorities, responsibility messages, sexuality, sunrise, video games). Conclusions: The high prevalence of code violations indicates a failure of self regulation to prevent potentially harmful content from appearing in alcohol advertising, including explicit code violations (e.g. sexuality). Routine violations indicate an unwillingness to restrict advertising content for public health purposes, and statutory restrictions may be necessary to sufficiently deter alcohol producers from repeatedly violating marketing codes. Short summary: Violations of a self-regulated alcohol advertising code are prevalent in a sample of beer ads published on Facebook near the US National Football League's Super Bowl. Overall, 16 thematic content areas demonstrated high specificity for code violations. Alcohol advertising codes should be updated to expressly prohibit the use of such content. PMID- 29016721 TI - No Impact of Calorie or Unit Information on Ad Libitum Alcohol Consumption. AB - Aims: To investigate the impact of unit and calorie information on drinking behaviour in an ad libitum taste test paradigm. Methods: In this experimental human laboratory study, participants were randomized to one of four conditions, balanced by gender, using a 2 (unit information: present vs. absent) * 2 (calorie information: present vs. absent) between-subjects design. The percentage of beer consumed during the taste test was the primary outcome measure. Results: Among this largely undergraduate student population, we found no evidence that either unit or calorie information impacted alcohol consumption in an ad libitum taste test. A manipulation check indicated that few of the participants receiving either unit and/or calorie information could accurately recall the number of units and/or calories in the beverages provided to them, indicating low levels of engagement with this information. Analysis of qualitative reactions to calorie and unit labelling indicated possible negative unintended consequences of calorie and unit information, including using unit information to facilitate consumption of higher strength beverages, and calorie information to reduce food consumption prior to a drinking episode. Conclusion: We find no evidence to support an effect of unit or calorie information, a public-health initiative supported by the alcohol industry, on drinking behaviour. It is possible that compulsory unit and calorie labelling, at least in the numeric format used here, would have no effect on alcohol intake and may even have some negative unintended consequences among certain populations. PMID- 29016723 TI - Use of the Mean Abnormal Result Rate (MARR) to Gauge Changes in Family Physicians' Selectivity of Laboratory Test Ordering, 2010-2015. AB - Objectives: The mean abnormal result rate (MARR) has recently been advanced as a metric of laboratory test appropriateness. We used the MARR metric to examine patterns of change in family physician test requisitions over time. Methods: We accessed the Laboratory Information System of Calgary Laboratory Services for family physician-ordered testing on outpatients to gather aggregate test and abnormal result counts from 2010 to 2015. Results: Over the 6 years, there was an annual average of 3,401,553 tests for 411,295 distinct patients on their first test requisition for the year. The MARR increased from 8.1% to 9.0% through this period. Conclusions: The MARR for Calgary and surrounding area gives tentative evidence of a gradual increase in physician test selectivity in recent years. Further data from other catchment areas are needed before making assertions about broader trends in physician awareness of laboratory resource use. PMID- 29016722 TI - Hierarchical statistical techniques are necessary to draw reliable conclusions from analysis of isolated cardiomyocyte studies. AB - Aims: It is generally accepted that post-MI heart failure (HF) changes a variety of aspects of sarcoplasmic reticular Ca2+ fluxes but for some aspects there is disagreement over whether there is an increase or decrease. The commonest statistical approach is to treat data collected from each cell as independent, even though they are really clustered with multiple likely similar cells from each heart. In this study, we test whether this statistical assumption of independence can lead the investigator to draw conclusions that would be considered erroneous if the analysis handled clustering with specific statistical techniques (hierarchical tests). Methods and results: Ca2+ transients were recorded in cells loaded with Fura-2AM and sparks were recorded in cells loaded with Fluo-4AM. Data were analysed twice, once with the common statistical approach (assumption of independence) and once with hierarchical statistical methodologies designed to allow for any clustering. The statistical tests found that there was significant hierarchical clustering. This caused the common statistical approach to underestimate the standard error and report artificially small P values. For example, this would have led to the erroneous conclusion that time to 50% peak transient amplitude was significantly prolonged in HF. Spark analysis showed clustering, both within each cell and also within each rat, for morphological variables. This means that a three-level hierarchical model is sometimes required for such measures. Standard statistical methodologies, if used instead, erroneously suggest that spark amplitude is significantly greater in HF and spark duration is reduced in HF. Conclusion: Ca2+ fluxes in isolated cardiomyocytes show so much clustering that the common statistical approach that assumes independence of each data point will frequently give the false appearance of statistically significant changes. Hierarchical statistical methodologies need a little more effort, but are necessary for reliable conclusions. We present cost free simple tools for performing these analyses. PMID- 29016725 TI - Is Drinking Contagious? An Analysis of the Collectivity of Drinking Behavior Theory Within a Multilevel Framework. AB - Aims: To analyze the effect of behavioral contagion regarding problematic adolescent alcohol use among countries with varying prevalence of problematic drinking. Methods: Nested data from 48,215 12 to 16-year olds from seventh to ninth grade of 25 European countries (48.5% male, M = 13.83 years) were studied using hierarchical general linear modeling sequences. Finally, an intercept-as outcome model was built to test the main hypothesis. Results: Multilevel analyses validated the significant effects of the individual risk factors of being older (OR = 2.02), being male (OR = 1.41) and being native born (OR = 1.32) on becoming a problematic alcohol user. Regarding the aggregated country-level predictor 'proportion of problematic alcohol users', the effect of behavioral contagion was also confirmed (OR = 1.05). Conclusions: The contagion effect regarding alcohol use behavior calls for a focus on environmental prevention efforts. By decreasing the public acceptance of (adolescent) alcohol use, the average proportion of problematic adolescent alcohol users in European countries may be reduced. PMID- 29016724 TI - Triggered intracellular calcium waves in dog and human left atrial myocytes from normal and failing hearts. AB - Aims: Abnormal intracellular Ca2+ cycling contributes to triggered activity and arrhythmias in the heart. We investigated the properties and underlying mechanisms for systolic triggered Ca2+ waves in left atria from normal and failing dog hearts. Methods and results: Intracellular Ca2+ cycling was studied using confocal microscopy during rapid pacing of atrial myocytes (36 degrees C) isolated from normal and failing canine hearts (ventricular tachypacing model). In normal atrial myocytes (NAMs), Ca2+ waves developed during rapid pacing at rates >= 3.3 Hz and immediately disappeared upon cessation of pacing despite high sarcoplasmic reticulum (SR) load. In heart failure atrial myocytes (HFAMs), triggered Ca2+ waves (TCWs) developed at a higher incidence at slower rates. Because of their timing, TCW development relies upon action potential (AP)-evoked Ca2+ entry. The distribution of Ca2+ wave latencies indicated two populations of waves, with early events representing TCWs and late events representing conventional spontaneous Ca2+ waves. Latency analysis also demonstrated that TCWs arise after junctional Ca2+ release has occurred and spread to non-junctional (cell core) SR. TCWs also occurred in intact dog atrium and in myocytes from humans and pigs. beta-adrenergic stimulation increased Ca2+ release and abolished TCWs in NAMs but was ineffective in HFAMs making this a potentially effective adaptive mechanism in normals but potentially arrhythmogenic in HF. Block of Ca calmodulin kinase II also abolished TCWs, suggesting a role in TCW formation. Pharmacological manoeuvres that increased Ca2+ release suppressed TCWs as did interventions that decreased Ca2+ release but these also severely reduced excitation-contraction coupling. Conclusion: TCWs develop during the atrial AP and thus could affect AP duration, producing repolarization gradients and creating a substrate for reentry, particularly in HF where they develop at slower rates and a higher incidence. TCWs may represent a mechanism for the initiation of atrial fibrillation particularly in HF. PMID- 29016727 TI - Soft tissue treatment changes with fixed functional appliances and with maxillary premolar extraction in Class II division 1 malocclusion patients. AB - Objective: The aim of this study was to compare the soft tissue changes and post treatment status after complete fixed functional appliance non-extraction and maxillary premolar extraction treatment in patients with Class II division 1 malocclusion. Materials/methods: The sample consisted of 96 lateral cephalograms of 48 patients, divided into two groups. Group 1 consisted of 23 patients treated with fixed functional appliance associated with fixed appliances, with initial and final mean ages of 12.71 and 15.16 years, respectively, mean treatment time of 2.44 years and initial mean overjet of 6.83 mm. Group 2 comprised 25 patients treated with extraction of two maxillary premolars with initial and final mean ages of 13.05 and 15.74 years, respectively, mean treatment time of 2.67 years and initial mean overjet of 7.01 mm. t-Tests were used to compare treatment changes and the final cephalometric statuses between the groups. Results: According to the results, there was no inter-group difference regarding the soft tissue changes and post-treatment status. Limitations: The use of exclusively one type of fixed functional appliance in group 1 and performance of only one type of mechanics during space closure in group 2 were not always possible. Conclusion: Late pubertal patients with Class II division 1 malocclusion treated with fixed functional appliances associated with fixed appliances present similar soft tissue results as two-maxillary premolar extraction treatments. PMID- 29016726 TI - Genetic Polymorphisms of Alcohol Metabolizing Enzymes and Alcohol Consumption are Associated With Asymptomatic Cardiac Remodeling and Subclinical Systolic Dysfunction in Large Community-Dwelling Asians. AB - Aims: Excessive consumption of alcoholic beverages is associated with cardiac remodeling and cardiomyopathy. We examined the possible association of alcohol use, common Asian genetic variants in genes involved in alcohol metabolism, and cardiac structures/functions alterations. Methods: A prospective, community dwelling survey among individuals with available complete echocardiography examined the associations of alcohol use, cardiac structure/functions, and three common alcohol metabolizing genetic variants, including aldehyde dehydrogenase 2 (ALDH2), alcohol dehydrogenase 1B (ADH1B) and cytochrome P450 (CYP) isoform 2E1 (CYP2E1). Results: Among 1577 participants (mean age: 53 +/- 9, 59.7% female), we observed that in subjects with more frequent weekly ethanol intake showed greater left ventricle (LV) mass, more impaired diastolic functions, and reduced global longitudinal strain (GLS), systolic (SRs) and early diastolic strain rates (SRe) (P<0.05). After propensity matching for clinical confounders (n = 330:30 for frequent users and non-users), frequent alcohol use and subjects carrying ALDH2 (A/G or A/A), ADH1B (A/A) or CYP2E1(T/C or T/T) polymorphisms were all associated with worse GLSRs and GLSRe, with combined alcohol use and any given genetic variant aggravated these associations (all P < 0.05). Finally, we observed Gene Gene synergistic effects on LV functional decline in frequent alcohol users by using linear mixed effect model (all interaction P < 0.05). Conclusions: Among East Asians, even moderate alcohol consumption can confer subclinical adverse effects on cardiac systolic functions, which was most pronounced in subjects carrying common variants in alcohol metabolizing genes. These findings challenge the notion of beneficial influences of less heavy ethanol consumption on the heart, especially among East Asians. Short summary: This study evaluated the association of level of alcohol consumption and genetic variants in genes involved in alcohol metabolism with changes in cardiac function in East Asians. Even moderate alcohol use conferred subclinical adverse effects on cardiac systolic functions, which were most pronounced in subjects carrying common alcohol metabolizing genes. PMID- 29016728 TI - Augmented Th17 differentiation in Trim21 deficiency promotes a stable phenotype of atherosclerotic plaques with high collagen content. AB - Aims: Patients with hyperlipidemia are at risk of atherosclerosis, but not all develop cardiovascular disease, highlighting the importance of other risk factors such as inflammation. Both the innate and adaptive arms of the immune system have been suggested in the initiation and propagation of plaque formation. Tri-partite motif (TRIM) 21 is a regulator of tissue inflammation and pro-inflammatory cytokine production, and has been implicated in chronic inflammatory disease. Here, we investigate a potential role for TRIM21 in coronary artery disease. Methods and results: Trim21-deficient or wild-type bone marrow was transplanted into Ldlr-/- mice fed a hypercholesterolemic diet. The Trim21-/-->Ldlr-/- mice developed larger atherosclerotic plaques, with significantly higher collagen content compared to mice transplanted with wild-type cells. High collagen content of the atheroma is stabilizing, and has recently been linked to IL-17. Interestingly, Trim21-/-->Ldlr-/- mice had elevated CD4 and IL-17 mRNA expression in plaques, and increased numbers of activated CD4+ T cells in the periphery. An increased differentiation of naive T cells lacking Trim21 into Th17 cells was confirmed in vitro, with transcriptomic analysis revealing upregulation of genes of a non-pathogenic Th17 phenotype. Also, decreased expression of matrix metalloproteinases (MMPs) was noted in aortic plaques. Analysis of human carotid plaques confirmed that TRIM21 expression negatively correlates with the expression of key Th17 genes and collagen, but positively to MMPs also in patients, linking our findings to a clinical setting. Conclusion: In this study, we demonstrate that TRIM21 influences atherosclerosis via regulation of Th17 responses, with TRIM21 deficiency promoting IL-17 expression and a more fibrous, stable, phenotype of the plaques. PMID- 29016729 TI - Influence of self-esteem on perceived orthodontic treatment need and oral health related quality of life in children: the Generation R Study. AB - Background: Self-esteem (SE) is suggested to influence the relationship between orthodontic treatment need and oral health-related quality of life (OHRQoL), but evidence lacks. The aim of the present study was to investigate SE in the relationship between subjective orthodontic need and OHRQoL in children. Methods: This cross-sectional study was embedded in the Generation R Study, a multi-ethnic population-based cohort. In total, 3796 10-year old children participated in the present study. OHRQoL, measured with the Child Oral Health Impact Profile-ortho, and subjective orthodontic need were assessed within parental questionnaires. SE was measured with a modified version of the Harter's self-perception profile rated by the children. The role of SE in the association between SOT and OHRQoL was evaluated with linear regression models. Furthermore, the difference in this association between children with high and low SE was investigated. Results: Higher subjective orthodontic need was associated with lower OHRQoL scores (borderline: beta [95% CI] = -0.55 [-0.77, -0.33]; definite: -1.65 [-1.87, 1.54]). Children with lower SE scores showed a stronger relationship between borderline and definite subjective orthodontic need with OHRQoL (beta [95% CI] = 0.56 [-0.81, -0.31] respectively -1.68 [-1.94, -1.42]) than children with higher SE scores did (beta [95% CI] = -0.51 [-0.97, -0.04] respectively -1.43 [-1.90, 0.95]). Conclusion: The relationship between subjective orthodontic need and OHRQoL is not based on the SE of children. However, SE modifies the relationship between subjective orthodontic need and OHRQoL. Work still needs to be done to find an explanation for the effect modification by SE in the relationship between subjective health perceptions and OHRQoL. PMID- 29016730 TI - MicroRNA-424(322) as a new marker of disease progression in pulmonary arterial hypertension and its role in right ventricular hypertrophy by targeting SMURF1. AB - Aims: MicroRNAs (miRNAs) have been implicated in the pathogenesis of pulmonary hypertension (PH), a multifactorial and progressive condition associated with an increased afterload of the right ventricle leading to heart failure and death. The main aim of this study was to correlate the levels of miR-424(322) with the severity and prognosis of PH and with right ventricle hypertrophy progression. Additionally, we intended to evaluate the mechanisms and signalling pathways whereby miR-424(322) secreted by pulmonary arterial endothelial cells (PAECs) impacts cardiomyocytes. Methods and results: Using quantitative real-time PCR, we showed that the levels of circulating miR-424(322) are higher in PH patients when compared with healthy subjects. Moreover, we found that miR-424(322) levels correlated with more severe symptoms and haemodynamics. In the subgroup of Eisenmenger syndrome patients, miR-424(322) displayed independent prognostic value. Furthermore, we demonstrated that miR-424(322) targets SMURF1, through which it sustains bone morphogenetic protein receptor 2 signalling. Moreover, we showed that hypoxia induces the secretion of miR-424(322) by PAECs, which after being taken up by cardiomyocytes leads to down-regulation of SMURF1. In the monocrotaline rat model of PH, we found an association between circulating miR 424(322) levels and the stage of right ventricle hypertrophy, as well as an inverse correlation between miR-424(322) and SMURF1 levels in the hypertrophied right ventricle. Conclusions: This study shows that miR-424(322) has diagnostic and prognostic value in PH patients, correlating with markers of disease severity. Additionally, miR-424(322) can target proteins with a direct effect on heart function, suggesting that this miRNA can act as a messenger linking pulmonary vascular disease and right ventricle hypertrophy. PMID- 29016731 TI - Electrical coupling between ventricular myocytes and myofibroblasts in the infarcted mouse heart. AB - Aims: Recent studies have demonstrated electrotonic coupling between scar tissue and the surrounding myocardium in cryoinjured hearts. However, the electrical dynamics occurring at the myocyte-nonmyocyte interface in the fibrotic heart remain undefined. Here, we sought to develop an assay to interrogate the nonmyocyte cell type contributing to heterocellular coupling and to characterize, on a cellular scale, its voltage response in the infarct border zone of living hearts. Methods and results: We used two-photon laser scanning microscopy in conjunction with a voltage-sensitive dye to record transmembrane voltage changes simultaneously from cardiomyocytes and adjoined nonmyocytes in Langendorff perfused mouse hearts with healing myocardial infarction. Transgenic mice with cardiomyocyte-restricted expression of a green fluorescent reporter protein underwent permanent coronary artery ligation and their hearts were subjected to voltage imaging 7-10 days later. Reporter-negative cells, i.e. nonmyocytes, in the infarct border zone exhibited depolarizing transients at a 1:1 coupling ratio with action potentials recorded simultaneously from adjacent, reporter-positive ventricular myocytes. The electrotonic responses in the nonmyocytes exhibited slower rates of de- and repolarization compared to the action potential waveform of juxtaposed myocytes. Voltage imaging in infarcted hearts expressing a fluorescent reporter specifically in myofibroblasts revealed that the latter were electrically coupled to border zone myocytes. Their voltage transient properties were indistinguishable from those of nonmyocytes in hearts with cardiomyocyte restricted reporter expression. The density of connexin43 expression at myofibroblast-cardiomyocyte junctions was ~5% of that in the intercalated disc regions of paired ventricular myocytes in the remote, uninjured myocardium, whereas the ratio of connexin45 to connexin43 expression levels at heterocellular contacts was ~1%. Conclusion: Myofibroblasts contribute to the population of electrically coupled nonmyocytes in the infarct border zone. The slower kinetics of myofibroblast voltage responses may reflect low electrical conductivity across heterocellular junctions, in accordance with the paucity of connexin expression at myofibroblast-cardiomyocyte contacts. PMID- 29016734 TI - The impact of Cone Beam CT on financial costs and orthodontists' treatment decisions in the management of maxillary canines with eruption disturbance. AB - Background: Examination with Cone Beam CT (CBCT) is common for localizing maxillary canines with eruption disturbance. The benefits and costs of these examinations are unclear. Objectives: To measure: 1. the proportion of orthodontists' treatment decisions that were different based on intraoral and panoramic radiography (M1) compared with CBCT and panoramic radiography (M2); and 2. the costs of producing different treatment plans, regarding patients with maxillary canines with eruption disturbance. Subjects and methods: Orthodontists participated in a web-based survey and were randomly assigned to denote treatment decisions and the level of confidence in this decision for four patient cases presented with M1 or M2 at two occasions for the same patient case. Results: One hundred and twelve orthodontists made 445 assessments based on M1 and M2, respectively. Twenty-four per cent of the treatment decisions were different depending on which method the raters had access to, whereof one case differed significantly from all other cases. The mean total cost per examination was ?99.84 using M1 and ?134.37 using M2, resulting in an incremental cost per examination of ?34.53 for M2. Limitations: Benefits in terms of number of different treatment decisions must be considered as an intermediate outcome for the effectiveness of a diagnostic method and should be interpreted with caution. Conclusions: For the patient cases presented in this study, most treatment decisions were the same irrespective of radiological method. Accordingly, this study does not support routine use of CBCT regarding patients with maxillary canine with eruption disturbance. PMID- 29016732 TI - Regulation of vascular smooth muscle cell calcification by syndecan-4/FGF 2/PKCalpha signalling and cross-talk with TGFbeta. AB - Aims: Vascular calcification is a major cause of morbidity and mortality. Fibroblast growth factor-2 (FGF-2) plays an instructive role in osteogenesis and bone development, but its role in vascular calcification was unknown. Therefore, we investigated the involvement of FGF-2 in vascular calcification and determined the mechanism by which it regulates this process. Methods and results: We demonstrate that FGF-2 expression is increased in vascular smooth muscle cells (VSMCs) induced to deposit a mineralized matrix by incubation with beta glycerophosphate. FGF-2 is also localized to sites of calcification within human atherosclerotic plaques. The expression of syndecan-4, a heparan sulfate proteoglycan which regulates FGF-2 signalling, is also increased in mineralizing VSMCs and co-localizes with FGF-2 in human calcified atherosclerotic plaques. Exogenous FGF-2 inhibits VSMC mineralization, and this inhibition is reduced when syndecan-4 expression is knocked-down using siRNA. Biochemical inhibition of FGFR signalling using a pan FGFR inhibitor (BGJ398) or knocking-down syndecan-4 expression in VSMCs using siRNA increases VSMC mineralization. These increases are prevented by inhibiting transforming growth factor-beta (TGFbeta) signalling with SB431542, suggesting cross-talk between FGF-2 and TGFbeta signalling is crucial for the regulation of VSMC mineralization. Syndecan-4 can also regulate FGF-2 signalling directly via protein kinase Calpha (PKCalpha) activation. Biochemical inhibition of PKCalpha activity using Go6976, or siRNA-mediated suppression of PKCalpha expression increases VSMC mineralization; this increase is also prevented with SB431542. Finally, the ability of FGF-2 to inhibit VSMC mineralization is reduced when PKCalpha expression is knocked-down. Conclusion: This is the first demonstration that syndecan-4 promotes FGF-2 signalling, and in turn, suppresses VSMC mineralization by down-regulating TGFbeta signalling. Our discoveries that FGF-2 and syndecan-4 expression is increased in mineralizing VSMCs and that PKCalpha regulates FGF-2 and TGFbeta signalling in VSMCs suggests that the syndecan-4/FGF-2/TGFbeta signalling axis could represent a new therapeutic target for vascular calcification. PMID- 29016735 TI - LncRNA TUG1 sponges miR-204-5p to promote osteoblast differentiation through upregulating Runx2 in aortic valve calcification. AB - Aims: Emerging evidence indicates that long non-coding RNAs (lncRNAs) play a vital role in cardiovascular physiology and pathology. Although the lncRNA TUG1 is implicated in atherosclerosis, its function in calcific aortic valve disease (CAVD) remains unknown. Methods and results: In this study, we found that TUG1 was highly expressed in human aortic valves and primary valve interstitial cells (VICs). Moreover, TUG1 knockdown induced inhibition of osteoblast differentiation in CAVD both in vitro and in vivo. Mechanistically, silencing of TUG1 increased the expression of miR-204-5p and subsequently inhibited Runx2 expression at the post-transcriptional level. Importantly, TUG1 directly interacted with miR-204-5p and downregulation of miR-204-5p efficiently reversed the suppression of Runx2 induced by TUG1 short hairpin RNA (shRNA). Thus, TUG1 positively regulated the expression of Runx2, through sponging miR-204-5p, and promoted osteogenic differentiation in CAVD. Conclusion: All together, the evidence generated by our study elucidates the role of lncRNA TUG1 as a miRNA sponge in CAVD, and sheds new light on lncRNA-directed diagnostics and therapeutics in CAVD. PMID- 29016736 TI - Long-term (>=15 years) post-treatment changes and outcome quality after Class II:1 treatment in comparison to untreated Class I controls. AB - Aim: To investigate the long-term (>=15 years) post-treatment (Tx) occlusal changes and outcome quality after Class II:1 Tx. Subjects and Methods: Herbst-MBA Tx had been performed at age 12.8 +/- 2.7 years in 119 patients. A recall was conducted and study models from before and after active Tx, after retention as well as after recall were evaluated using standard occlusal variables and the PAR index. These data were compared to 31 untreated Class I controls. Results: 52 out of 119 patients could be located and participated at 33.6 +/- 3.1 years. Compared to the 67 patients who did not participate in the recall, the pre- and post-Tx occlusal data of the participants did not differ systematically; however, the PAR scores were higher by 3.0-4.7 points at all times. Pre-Tx, the mean values of the 52 participants were: PAR = 27.2 +/- 7.6, Class II molar relationship (MR) = 0.7 cusp widths (cw), overjet = 8.2 mm, overbite = 4.1 mm. After Tx, the PAR score was 3.4 +/- 2.2. A Class I MR (0.0 +/- 0.1 cw) with normal overjet (2.3 +/- 0.7 mm) and overbite (1.3 +/- 0.7 mm) existed. At recall, a mild PAR score increase to 8.2 +/- 5.5 points had occurred; this was mainly due to increased overjet and overbite values (3.6 +/- 1.1 and 2.8 +/- 1.6 mm) while the MR was stable (0.0 +/- 0.2 cw). For all these variables, similar findings were made in the untreated controls. Conclusion: The occlusal outcome of Class II:1 Tx showed very good long term stability. While mild changes occur post-Tx, the long-term result is similar to untreated Class I controls. PMID- 29016737 TI - Diverging effects of enalapril or eplerenone in primary prevention against doxorubicin-induced cardiotoxicity. AB - Aims: Clinical studies suggest beneficial effects of renin-angiotensin system blockade for prevention of left ventricular (LV) dysfunction after chemotherapy. However, the efficacy of this strategy as primary prevention has been poorly studied. This study aimed at identifying the pathophysiological mechanisms by which mineralocorticoid receptor antagonism (MRA) or angiotensin converting enzyme inhibition (ACEi) provide protection against doxorubicin-induced cardiotoxicity (DIC) in mouse models of acute and chronic toxicity. Methods and results: Acute DIC was induced by a single injection of Dox at 15 mg/kg and chronic DIC applied 5 injections of Dox at 4 mg/kg/week. MRA was achieved using eplerenone or cardiomyocyte-specific ablation of the MR gene in transgenic mice and ACEi using enalapril. Drugs were provided with the first dose of Dox and applied until the end of the study. In both model of DIC, Dox induced cardiac atrophy with decreased LV volume, reduced cardiomyocyte cell size, and cardiac dysfunction. In the acute model, neither MRA nor ACEi protected against these manifestations of DIC. In the chronic model, concomitant treatment with eplerenone did not protect against DIC and drastically increased plasma aldosterone levels and cardiac levels of angiotensin II type 1 receptor and of connective tissue growth factor (CTGF), as observed in acute DIC. Enalapril treatment in the chronic model, however, protected against cardiac dysfunction and cardiomyocyte atrophy and was associated with increased activation of the PI3K/AKT/mTOR pathway along with normal levels of CTGF. Conclusion: Enalapril and eplerenone disparately impact on cellular signalling in DIC. Eplerenone, on top of Dox treatment was not protective and associated with increased levels of plasma aldosterone and of cardiac CTGF. In contrast, we show that primary prevention with enalapril preserves LV morphology and function in a clinically relevant model of chronic DIC, with increased stimulation of the PI3K/AKT/mTOR axis and normal CTGF levels suggesting potential therapeutic implications. PMID- 29016733 TI - Endothelial to haematopoietic transition contributes to pulmonary arterial hypertension. AB - Aims: The pathogenic mechanisms of pulmonary arterial hypertension (PAH) remain unclear, but involve dysfunctional endothelial cells (ECs), dysregulated immunity and inflammation in the lung. We hypothesize that a developmental process called endothelial to haematopoietic transition (EHT) contributes to the pathogenesis of pulmonary hypertension (PH). We sought to determine the role of EHT in mouse models of PH, to characterize specific cell types involved in this process, and to identify potential therapeutic targets to prevent disease progression. Methods and results: When transgenic mice with fluorescence protein ZsGreen-labelled ECs were treated with Sugen/hypoxia (Su/Hx) combination to induce PH, the percentage of ZsGreen+ haematopoietic cells in the peripheral blood, primarily of myeloid lineage, significantly increased. This occurrence coincided with the depletion of bone marrow (BM) ZsGreen+ c-kit+ CD45- endothelial progenitor cells (EPCs), which could be detected accumulating in the lung upon PH-induction. Quantitative RT-PCR based gene array analysis showed that key transcription factors driving haematopoiesis were expressed in these EPCs. When transplanted into lethally irradiated recipient mice, the BM-derived EPCs exhibited long-term engraftment and haematopoietic differentiation capability, indicating these EPCs are haemogenic in nature. Specific inhibition of the critical haematopoietic transcription factor Runx1 blocked the EHT process in vivo, prevented egress of the BM EPCs and ultimately attenuated PH progression in Su/Hx- as well as in monocrotaline-induced PH in mice. Thus, myeloid-skewed EHT promotes the development of PH and inhibition of this process prevents disease progression in mouse models of PH. Furthermore, high levels of Runx1 expression were found in circulating CD34+ CD133+ EPCs isolated from peripheral blood of patients with PH, supporting the clinical relevance of our proposed mechanism of EHT. Conclusion: EHT contributes to the pathogenesis of PAH. The transcription factor Runx1 may be a novel therapeutic target for the treatment of PAH. PMID- 29016738 TI - Three-dimensional Frankfort horizontal plane for 3D cephalometry: a comparative assessment of conventional versus novel landmarks and horizontal planes. AB - Background: To assess the reproducibility of landmarks in three dimensions that determine the Frankfort horizontal plane (FH) as well as two new landmarks, and to evaluate the angular differences of newly introduced planes to the FH. Methods: Three-dimensional (3D) surface models were created from CBCT scans of 26 dry human skulls. Porion (Po), orbitale (Or), internal acoustic foramen (IAF), and zygomatico-maxillary suture (ZyMS) were indicated in the software by three observers twice with a 4-week interval. Angles between two FHs (FH 1: Or-R, Or-L, mid-Po; FH 2: Po-R, Po-L, mid-Or) and between FHs and new planes (Plane 1-6) were measured. Coordinates were exported to a spreadsheet. A statistical analysis was performed to define the landmark reproducibility and 3D angles. Results: Intra- and inter-observer landmark reproducibility showed mean difference more than 1 mm for x-coordinates of all landmarks except IAF. IAF showed significantly better reproducibility than other landmarks (P < 0.0018). The mean angular difference between FH 1 and FH 2 was 0.7 degrees. Plane 3, connecting Or-R, Or-L and mid IAF, and Plane 4, connecting Po-R, Po-L and mid-ZyMS, both showed an angular difference of less than 1 degree when compared to FHs. Conclusions: This study revealed poor reproducibility of the traditional FH landmarks on the x-axis and good reproducibility of a new landmark tested to replace Po, the IAF. Yet, Or showed superior results compared to ZyMS. The potential of using new horizontal planes was demonstrated. Future studies should focus on identification of a valid alternative for Or and ZyMS and on clinical implementation of the findings. PMID- 29016739 TI - Association between severity of hypodontia and cephalometric skeletal patterns: a retrospective study. AB - Objective: To assess if severity of hypodontia is related to a specific skeletal pattern. Study design: Lateral cephalometric radiographs and dental panoramic tomographs of 182 hypodontia patients were analysed. The severity of hypodontia was recorded and the sample was divided into groups with mild (n = 71), moderate (n = 56) and severe (n = 55) hypodontia. According to ethnicity, the sample was further subdivided into White Caucasians, African-British, and Arabian/Indian subgroups. Cephalometric measurements were used to quantify the skeletal discrepancy and vertical facial dimensions. Mean and standard deviation for each group were obtained for comparison and an analysis of variance (ANOVA) was carried out to assess the level of significance between the means of the readings in different severity groups. Results: In the white Caucasian group, increased severity of hypodontia, was related to a retrusive maxilla with concomitant reduction of A point, Nasion, B point (ANB), reduced mandibular plane angle and anterior lower facial height (P value: 0.0935-0.9371). For the Black-British and Arabian/Indian groups' findings were inconsistent, with no specific pattern as the number of missing teeth increased. Conclusion: The white Caucasian group followed a pattern that has previously been reported in other studies. For Black British and Arabian/Indian groups' findings were inconsistent and no specific pattern emerged for different degrees of hypodontia. PMID- 29016741 TI - The effect of low-level laser therapy on orthodontically induced root resorption: a pilot double blind randomized controlled trial. AB - Background: The effect of low-level laser therapy (LLLT) on accelerating orthodontic tooth movement has been extensively studied; however, there is limited knowledge on the use of LLLT on orthodontic root resorption. Objective: To investigate the effect of LLLT on orthodontically induced inflammatory root resorption (OIIRR) and to compare the difference between pulsed and continuous LLLT on OIIRR. Trial design: Double-blind, single-centre 3-arm parallel split mouth randomized controlled trial. Participants: Twenty adolescent patients who required bilateral maxillary first premolar (MFP) orthodontic extractions were recruited from the Sydney Dental Hospital between October 2014 and December 2014. Intervention: All MFPs were tipped buccally for 28 days to induce OIIRR. The experimental premolars (n = 20) received LLLT and the control premolars (n = 20) received placebo-laser on days 0, 1, 2, 3, 7, 14, and 21. Ten experimental premolars received LLLT via continuous delivery and 10 received pulsed delivery. Laser parameter: AlGaAs diode laser of 808 nm wavelength, 0.18 W power, 1.6 J per point, and duration of 9s for continuous mode and 4.5 s for pulsed mode. Outcome: The difference in root resorption crater volume between LLLT and placebo-laser and continuous or pulsed laser delivery after 28 days. Randomization: Randomization was computer-generated, with allocation concealment by opaque sequentially numbered sealed envelopes. Blinding: The participants and operator were blinded. Results: Eighty-eight patients were screened and 20 patients were randomized. Forty premolars were analysed. LLLT resulted in 23 per cent less root resorption compared to the placebo (P = 0.026). Pulsed laser delivery resulted in 5 per cent less root resorption than continuous; however, this was not statistically significant (P = 0.823). No harm was observed. Conclusion: Teeth treated with LLLT had less total root resorption than placebo-laser. Furthermore, there was minimal difference between pulsed or continuous delivery of LLLT. Trial Registration: Clinical Trials Registry (ACTRN12616000829415). Protocol: The protocol was not published before trial commencement. PMID- 29016742 TI - Looking Beyond Traditional Metrics in Orthodontics: An Altmetric Study on the Most Discussed Articles on the Web. AB - Objective: To evaluate the online visibility of the most popular orthodontic articles in Web platforms in relation to publication details and citations. Materials and Methods: Altmetric Explorer (Altmetric LLP, London, UK) was searched for articles published in 11 orthodontic journals without time limits in publication and citation on social media. The 200 articles with the highest Altmetric Attention Score (AAS) were collected and screened for data related to publication (date, journal, access), authorship (number of authors, affiliation and origin of the corresponding author), and research (type, subject, funding). Citation counts were harvested from Scopus. Results: The top 200 articles presented a median AAS of 8.0 (range: 5.0-196.0), and were mostly bookmarked in Mendeley (median: 16.6 references; range: 0-199.0). American Journal of Orthodontics & Dentofacial Orthopedics, European Journal of Orthodontics and The Angle Orthodontist contributed 86 per cent of the total number of research outputs. Studies investigating socio-demographics had significantly higher AAS compared to diagnostic studies (median AAS: 19.0; range: 7.0-34.0; versus median AAS: 6.0; range: 5.0-10.0. No other study parameter was found to be statistically significant. AAS did not correlate to the number of citations as reported in Scopus. Limitations: The early stage of altmetrics and their complementary role in assessing together with the citation-based metrics the research impact need to be acknowledged in the interpretation of the results. Conclusions: Visibility of orthodontic articles on the Web is not significantly correlated with citations. Studies on socio-demographics had significantly higher number of online mentions. More constructive online presence of orthodontic journals is needed to reinforce dissemination of research data among scholars and non-scholars. PMID- 29016743 TI - Semaphorin-3E attenuates neointimal formation via suppressing VSMCs migration and proliferation. AB - Aims: The migration and proliferation of vascular smooth muscle cells (VSMCs) are crucial events in the neointimal formation, a hallmark of atherosclerosis and restenosis. Semaphorin3E (Sema3E) has been found to be a critical regulator of cell migration and proliferation in many scenarios. However, its role on VSMCs migration and proliferation is unclear. This study aimed to investigate the effect of Sema3E on VSMCs migration, proliferation and neointimal formation, and explore possible mechanisms. Methods and results: We found that the expression of Sema3E was progressively decreased during neointimal formation in a carotid ligation model. H&E-staining showed lentivirus-mediated overexpression of Sema3E in carotid ligation area attenuated neointimal formation. Immunofluorescence staining showed that the receptor (PlexinD1) of Sema3E was expressed in vascular walls. In cultured mouse VSMCs, Sema3E inhibited VSMCs migration and proliferation via plexinD1 receptor. The inhibitory effect was mediated, at least in part, by inactivating Rap1-AKT signalling pathways in VSMCs. Moreover, we found that PDGFBB down-regulated the expression of Sema3E in VSMCs and Sema3E notably inhibited the expression of PDGFB in endothelial cells. In addition, the number of Sema3E-positive VSMCs was diminished in plaques of atherosclerotic patients. Results from a public GEO microarray database showed a negative correlation between Sema3E and PDGFB transcriptional levels in the human plaques examined. Conclusion: Our study demonstrates that Sema3E/plexinD1 inhibits proliferation and migration of VSMCs via inactivation of Rap1-AKT signalling pathways. The mutual inhibition between PDGF-BB and Sema3E after vascular injury plays a critical role in the process of neointimal formation. PMID- 29016744 TI - Effects of dapagliflozin on human epicardial adipose tissue: modulation of insulin resistance, inflammatory chemokine production, and differentiation ability. AB - Aims: In patients with cardiovascular disease, epicardial adipose tissue (EAT) is characterized by insulin resistance, high pro-inflammatory chemokines, and low differentiation ability. As dapagliflozin reduces body fat and cardiovascular events in diabetic patients, we would like to know its effect on EAT and subcutaneous adipose tissue (SAT). Methods and results: Adipose samples were obtained from 52 patients undergoing heart surgery. Sodium-glucose cotransporter 2 (SGLT2) expression was determined by real-time polymerase chain reaction (n = 20), western blot, and immunohistochemistry. Fat explants (n = 21) were treated with dapagliflozin and/or insulin and glucose transporters expression measured. Glucose, free fatty acid, and adipokine levels (by array) were measured in the EAT secretomes, which were then tested on human coronary endothelial cells using wound healing assays. Glucose uptake was also measured using the fluorescent glucose analogue (6NBDG) in differentiated stromal vascular cells (SVCs) from the fat pads (n = 11). Finally, dapagliflozin-induced adipocyte differentiation was assessed from the levels of fat droplets (AdipoRed staining) and of perilipin. SGLT2 was expressed in EAT. Dapagliflozin increased glucose uptake (20.95 +/- 4.4 mg/dL vs. 12.97 +/- 4.1 mg/dL; P < 0.001) and glucose transporter type 4 (2.09 +/ 0.3 fold change; P < 0.01) in EAT. Moreover, dapagliflozin reduced the secretion levels of chemokines and benefited wound healing in endothelial cells (0.21 +/- 0.05 vs. 0.38 +/- 0.08 open wound; P < 0.05). Finally, chronic treatment with dapagliflozin improved the differentiation of SVC, confirmed by AdipoRed staining [539 +/- 142 arbitrary units (a.u.) vs. 473 +/- 136 a.u.; P < 0.01] and perilipin expression levels (121 +/- 10 vs. 84 +/- 11 a.u.). Conclusions: Dapagliflozin increased glucose uptake, reduced the secretion of pro-inflammatory chemokines (with a beneficial effect on the healing of human coronary artery endothelial cells), and improved the differentiation of EAT cells. These results suggest a new protective pathway for this drug on EAT from patients with cardiovascular disease. PMID- 29016746 TI - Effects of low magnitude high frequency mechanical vibration combined with compressive force on human periodontal ligament cells in vitro. AB - Objective: Vibration can be used to accelerate tooth movement, though the exact mechanisms remain unclear. This study aimed to investigate the effects of low magnitude high frequency (LMHF) vibration combined with compressive force on periodontal ligament (PDL) cells in vitro. Materials and methods: Human PDL cells were isolated from extracted premolar teeth of four individuals. To determine the optimal frequency for later used in combination with compressive force, three cycles of low-magnitude (0.3 g) vibrations at various frequencies (30, 60, or 90 Hz) were applied to PDL cells for 20 min every 24 h. To investigate the effects of vibration combined with compressive force, PDL cells were subjected to three cycles of optimal vibration frequency (V) or 1.5 g/cm2 compressive force for 48 h (C) or vibration combined with compressive force (VC). Cell viability was assessed using MTT assay. PGE2, soluble RANKL (sRANKL), and OPG production were quantified by ELISA. RANKL, OPG, and Runx2 expression were determined using real time PCR. Results: Cell viability was decreased in groups C and VC. PGE2 and RANKL, but not OPG, were increased in groups V, C, and VC, thus increasing the RANKL/OPG ratio. The highest level was observed in group VC. sRANKL was increased in groups V, C, and VC; however, no significant different between the experimental groups. Runx2 expression was reduced in groups C and VC. Conclusions: Vibration increased PGE2, RANKL, and sRANKL, but not OPG and Runx2. Vibration had the additive effects on PGE2 and RANKL, but not sRANKL in compressed PDL cells. PMID- 29016740 TI - A novel fibroblast growth factor-1 ligand with reduced heparin binding protects the heart against ischemia-reperfusion injury in the presence of heparin co administration. AB - Aims: Fibroblast growth factor 1 (FGF1), a heparin/heparan sulfate-binding growth factor, is a potent cardioprotective agent against myocardial infarction (MI). The impact of heparin, the standard of care for MI patients entering the emergency room, on cardioprotective effects of FGF1 is unknown, however. Methods and results: To address this, a rat model of MI was employed to compare cardioprotective potentials (lower infarct size and improve post-ischemic function) of native FGF1 and an engineered FGF1 (FGF1DeltaHBS) with reduced heparin-binding affinity when given at the onset of reperfusion in the absence or presence of heparin. FGF1 and FGF1DeltaHBS did not alter heparin's anticoagulant properties. Treatment with heparin alone or native FGF1 significantly reduced infarct size compared to saline (P < 0.05). Surprisingly, treatment with FGF1DeltaHBS markedly lowered infarct size compared to FGF1 (P < 0.05). Both native and modified FGF1 restored contractile and relaxation function (P < 0.05 versus saline or heparin). Furthermore, FGF1DeltaHBS had greater improvement in cardiac function compared to FGF1 (P < 0.05). Heparin negatively impacted the cardioprotective effects (infarct size, post-ischemic recovery of function) of FGF1 (P < 0.05) but not of FGF1DeltaHBS. Heparin also reduced the biodistribution of FGF1, but not FGF1DeltaHBS, to the left ventricle. FGF1 and FGF1DeltaHBS bound and triggered FGFR1-induced downstream activation of ERK1/2 (P < 0.05); yet, heparin co-treatment decreased FGF1-produced ERK1/2 activation, but not that activated by FGF1DeltaHBS. Conclusion: These findings demonstrate that modification of the heparin-binding region of FGF1 significantly improves the cardioprotective efficacy, even in the presence of heparin, identifying a novel FGF ligand available for therapeutic use in ischemic heart disease. PMID- 29016747 TI - Five year trends (2008-2012) in cardiac implantable electrical device utilization in five European nations: a case study in cross-country comparisons using administrative databases. AB - Aims: Common methodologies for analysis of analogous data sets are needed for international comparisons of treatment and outcomes. This study tests using administrative hospital discharge (HD) databases in five European countries to investigate variation/trends in pacemaker (PM) and implantable cardioverter defibrillator (ICD) implant rates in terms of patient characteristics/management, device subtype, and initial implantation vs. replacement, and compares findings with existing literature and European Heart Rhythm Association (EHRA) reports. Methods and results: HD databases from 2008 to 2012 in Austria, England, Germany, Italy and Slovenia were interrogated to extract admissions (without patient identification) associated with PM and ICD implants and replacements, using direct cross-referencing of procedure codes and common methodology to compare aggregate data. 1 338 199 records revealed 212 952 PM and 62 567 ICD procedures/year on average for a 204.4 million combined population, a crude implant rate of about 104/100 000 inhabitants for PMs and 30.6 for ICDs. The first implant/replacement rate ratios were 81/24 (PMs) and 25/7 (ICDs). Rates have increased, with cardiac resynchronization therapy (CRT) subtypes for both devices rising dramatically. Significant between- and within-country variation persists in lengths of stay and rates (Germany highest, Slovenia lowest). Adjusting for age lessened differences for PM rates, scarcely affected ICDs. Male/female ratios remained stable at 56/44% (PMs) and 79/21% (ICDs). About 90% of patients were discharged to home; 85-100% were inpatient admissions. Conclusion: To aid in policymaking and track outcomes, HD administrative data provides a reliable, relatively cheap, methodology for tracking implant rates for PMs and ICDs across countries, as comparisons to EHRA data and the literature indicated. PMID- 29016745 TI - CXCL12-CXCR4 signalling plays an essential role in proper patterning of aortic arch and pulmonary arteries. AB - Aims: Chemokine CXCL12 (stromal derived factor 1: SDF1) has been shown to play important roles in various processes of cardiovascular development. In recent avian studies, CXCL12 signalling has been implicated in guidance of cardiac neural crest cells for their participation in the development of outflow tract and cardiac septum. The goal of this study is to investigate the extent to which CXCL12 signalling contribute to the development of aortic arch and pulmonary arteries in mammals. Methods and results: Novel Cxcl12-LacZ reporter and conditional alleles were generated. Using whole mount X-gal staining with the reporter allele and vascular casting techniques, we show that the domain branching pattern of pulmonary arteries in Cxcl12-null mice is completely disrupted and discordant with that of pulmonary veins and airways. Cxcl12-null mice also displayed abnormal and superfluous arterial branches from the aortic arch. The early steps of pharyngeal arch remodelling in Cxcl12-null mice appeared to be unaffected, but vertebral arteries were often missing and prominent aberrant arteries were present parallel to carotid arteries or trachea, similar to aberrant vertebral artery or thyroid ima artery, respectively. Analysis with computed tomography not only confirmed the results from vascular casting studies but also identified abnormal systemic arterial supply to lungs in the Cxcl12-null mice. Tie2-Cre mediated Cxcr4 deletion phenocopied the Cxcl12-null phenotypes, indicating that CXCR4 is the primary receptor for arterial patterning, whereas Cxcl12 or Cxcr4 deletion by Wnt1-Cre did not affect aortic arch patterning. Conclusion: CXCL12-CXCR4 signalling is essential for the correct patterning of aortic arches and pulmonary arteries during development. Superfluous arteries in Cxcl12-null lungs and the aortic arch infer a role of CXCL12 in protecting arteries from uncontrolled sprouting during development of the arterial system. PMID- 29016748 TI - The second generation cryoballoon has improved durable isolation of left but not right pulmonary veins: new insights from a multicentre study. AB - Aims: Pulmonary vein isolation (PVI) using second-generation cryoballoon (CB2) is associated with improved outcomes compared with first generation (CB1). We aimed at investigating the characteristics of left and right PV reconnections after CB1 and CB2 ablations in patients with clinical recurrences requiring redo ablation. Methods and results: From 2010 to 2016, 776 patients underwent 28-mm cryoballoon PVI for symptomatic paroxysmal atrial fibrillation (AF) in 3 centres, 279 with CB1 and 497 with CB2. Among them, 94 patients (12.1%) had symptomatic AF recurrences requiring a redo ablation [43 (15.4%) CB1 and 51 (10.3%) CB2]. The benefit of CB2 over CB1 was compared for each PV. Durable PVI was confirmed in 7 CB1 (16.3%) and 14 CB2 (27.4%) patients, and 2.7 +/- 2.1 and 1.4 +/- 1.4 gaps per patient were found, respectively (P = 0.002). Significantly more left superior and left inferior PVs were found to be isolated in CB2 compared with CB1 group (78.4% vs. 48.8%, P = 0.005 and 78.4% vs. 46.5%, P = 0.003, respectively) while the rate of durable right superior and right inferior PVs isolation were similar (68.6% vs. 60.5%, P = 0.542 and 66.7% vs. 55.8%, P = 0.387, respectively). Significantly fewer gaps were found in left PVs in CB2 patients, while there was no significant difference for right PVs. Gaps localization was similar in both groups. Conclusion: Fewer reconnection gaps are observed during redo ablations of paroxysmal AF in patients primarily ablated with CB2. This difference is driven by less reconnection gaps observed in both left PVs, while no difference was observed for right PVs. PMID- 29016750 TI - Electroanatomical mapping of coronary artery anatomy to guide epicardial ventricular tachycardia ablation. PMID- 29016751 TI - Cardiac effects of SGLT2 inhibitors: the sodium hypothesis. AB - The effects of intense glycaemic control on macrovascular complications in patients with type 2 diabetes are incompletely resolved, and many glucose lowering medications negatively affect cardiovascular outcomes. Recently, the EMPA-REG OUTCOME trial revealed that empagliflozin, an inhibitor of the sodium glucose cotransporter 2 (SGLT2), substantially reduced the risk of hospitalization for heart failure, death from cardiovascular causes, and all cause mortality in patients with type 2 diabetes mellitus at high cardiovascular risk. Although several mechanisms may explain this benefit, plasma volume contraction and a metabolic switch favouring cardiac ketone bodies oxidation have recently been proposed as the major drivers. Recent experimental work has prompted a novel and intriguing hypothesis, according to which empagliflozin may reduce intracellular sodium (Na+) load observed in failing cardiac myocytes by inhibiting the sarcolemmal Na+/H+ exchanger. Since elevated intracellular Na+ hampers mitochondrial Ca2+ handling and thereby, deteriorates energy supply and demand matching and the mitochondrial antioxidative defence systems, empagliflozin may positively affect cardiac function by restoring mitochondrial function, and redox state in the failing heart. Here, we review the current evidence for such a third mechanistic hypothesis, which may foster heart failure and diabetes research into a new direction which harbours several potential targets for therapeutic intervention. PMID- 29016752 TI - Hypothyroidism and congenital long QT: additive effect causing torsades? PMID- 29016753 TI - Clinical impact, safety, and accuracy of the remotely monitored implantable loop recorder Medtronic Reveal LINQTM. AB - Aims: Implantable loop recorders (ILR) are indicated in a variety of clinical situations when extended cardiac rhythm monitoring is needed. We aimed to assess the clinical impact, safety, and accuracy of the new Medtronic Reveal LINQTM ILR that can be inserted outside the electrophysiology (EP) laboratory and remotely monitored. Methods and results: All 154 consecutive patients (100 males, 63 +/- 15 year-old) who received the Reveal LINQTM ILR during the period July 2014-June 2016 were enrolled. The device was implanted in a procedure room and all patients where provided with the MyCareLinkTM remote monitoring system. Data were reviewed every working day via the Carelink(r) web system by a specialist nurse who, in case of significant events, consulted an electrophysiologist. During a mean follow-up of 12.1 (6.7-18.4) months (range 2-24 months), a diagnosis was made in 99 (64%) patients and in 60 (39%) >=1 therapeutic interventions were established following recording of arrhythmias. In 26 of these 60 patients, remote monitoring prompted therapeutic interventions following asymptomatic arrhythmic events 3.8 months before the next theoretical scheduled in-office data download. False bradycardia detection for undersensing occurred in 44 (29%) patients and false tachycardia detection for oversensing in 4 (3%). One patient experienced skin erosion requiring explantation and none suffered from infection. Conclusion: The remote monitoring feature of the Reveal LINQTM allowed earlier diagnosis of asymptomatic but serious arrhythmias in a significant proportion of patients. Implantation of the device outside the EP laboratory appeared safe. However, R wave undersensing and consequent false recognition of bradyarrhythmias remains a clinically important technical issue. PMID- 29016749 TI - Differential eNOS-signalling by platelet subpopulations regulates adhesion and aggregation. AB - Aims: In addition to maintaining haemostasis, circulating blood platelets are the cellular culprits that form occlusive thrombi in arteries and veins. Compared to blood leucocytes, which exist as functionally distinct subtypes, platelets are considered to be relatively simple cell fragments that form vascular system plugs without a differentially regulated cellular response. Hence, investigation into platelet subpopulations with distinct functional roles in haemostasis/thrombosis has been limited. In our present study, we investigated whether functionally distinct platelet subpopulations exist based on their ability to generate and respond to nitric oxide (NO), an endogenous platelet inhibitor. Methods and results: Utilizing highly sensitive and selective flow cytometry protocols, we demonstrate that human platelet subpopulations exist based on the presence and absence of endothelial nitric oxide synthase (eNOS). Platelets lacking eNOS (approximately 20% of total platelets) fail to produce NO and have a down regulated soluble guanylate cyclase-protein kinase G (sGC-PKG)-signalling pathway. In flow chamber and aggregation experiments eNOS-negative platelets primarily initiate adhesion to collagen, more readily activate integrin alphaIIbbeta3 and secrete matrix metalloproteinase-2, and form larger aggregates than their eNOS-positive counterparts. Conversely, platelets having an intact eNOS-sGC-PKG-signalling pathway (approximately 80% of total platelets) form the bulk of an aggregate via increased thromboxane synthesis and ultimately limit its size via NO generation. Conclusion: These findings reveal previously unrecognized characteristics and complexity of platelets and their regulation of adhesion/aggregation. The identification of platelet subpopulations also has potentially important consequences to human health and disease as impaired platelet NO-signalling has been identified in patients with coronary artery disease. PMID- 29016755 TI - Outcomes after catheter ablation and cardioversion in patients with non-valvular atrial fibrillation: results from the prospective, observational XANTUS study. AB - Aims: In patients with atrial fibrillation, catheter ablation and cardioversion carry a risk of peri-procedural thromboembolic events; current guidelines recommend anticoagulation in these settings. This study aimed to report the baseline demographics and clinical characteristics of patients enrolled in the prospective, observational XANTUS study who underwent catheter ablation or cardioversion, and adverse outcomes with each of these procedures in patients treated with rivaroxaban. Methods and results: Data collected included information on catheter ablation and cardioversion, and adverse outcomes occurring within 30 days of these procedures: incidence of treatment-emergent adjudicated symptomatic thromboembolic events and major bleeding; and cardiovascular and all-cause death. Incidence of these adverse outcomes at 42 days after cardioversion was also analysed. Patients undergoing either procedure had significantly lower mean CHA2DS2-VASc and HAS-BLED scores than those who did not, and were more frequently hospitalized at study baseline. Within a period of 30 days after intervention, symptomatic thromboembolic events were reported in 1.2% and 0.6% of patients undergoing ablation or cardioversion, respectively; major bleeding events were reported in 2.9% and 0.4% of patients undergoing ablation or cardioversion, respectively. No patients died within 30 days of intervention. Incidence of symptomatic thromboembolic and major bleeding events remained low at 42 days after cardioversion. Conclusion: Similar to the results of prospective and non-interventional studies, the low rates of symptomatic thromboembolic events and major bleeding in patients with atrial fibrillation undergoing ablation or cardioversion and treated with rivaroxaban in XANTUS suggest that its use is associated with an acceptable benefit-risk profile in this setting. Trial registration number: Clinicaltrials.gov: NCT01606995. PMID- 29016757 TI - Association of left atrial low-voltage area and thromboembolic risk in patients with atrial fibrillation. AB - Aims: Atrial fibrillation (AF) is associated with thromboembolic events. Currently, the CHA2DS2-VASc score is recommended for thromboembolic risk stratification in non-valvular AF patients. However, recent data suggested a potential role of atrial remodelling on thromboembolism. This study aimed to assess the association between left atrial low-voltage area (LVA) and history of clinical manifest as well as subclinical silent cerebral ischaemia (SCI) in AF patients. Methods and results: Two-hundred patients [64 +/- 10.5 years, 75 women (37.5%)] with symptomatic paroxysmal (n = 88, 44%) or persistent AF undergoing pulmonary vein isolation (PVI) were prospectively enrolled. Left atrial LVA (bipolar voltage < 0.5mV) was evaluated by intra-procedural mapping (>300 points per patient) during sinus rhythm. Cerebral delayed-enhancement magnetic resonance imaging was performed after PVI for detection of pre-existing procedural independent SCI. Over all, 17 patients (8.5%) had previous history of stroke. Pre existing SCIs were detected in 135 patients (67.5%). Patients with previous stroke (4.0 +/- 1.5 vs. 2.1 +/- 1.3, P < 0.0001) and pre-existing SCI (2.7 +/- 1.3 vs. 1.5 +/- 1.4, P < 0.0001) had a significantly higher CHA2DS2-VASc score. LVA was significantly larger in patients with previous stroke (12.5 +/- 8.5% vs. 3.4 +/- 5.4%, P < 0.0001) as well as pre-existing SCI (5.8 +/- 6.9% vs. 0.8 +/- 1.7%, P < 0.0001). Multivariate regression analysis revealed that LVA was independently associated with the presence of SCI [hazard ratio (HR) per 1% LVA 1.13 (1.06-1.22), P = 0.0003] and history of stroke [HR per 1% LVA 1.36 (1.19 1.60), P < 0.0001] after adjustment of CHA2DS2-VASc score. Conclusion: Left atrial LVA is associated with history of stroke and SCI in patients with non valvular AF and might improve thromboembolic risk stratification after confirmation of its predictive value in future studies. PMID- 29016756 TI - The electrocardiogram as a predictor of successful pharmacological cardioversion and progression of atrial fibrillation. AB - Aims: Non-invasive characterization of atrial fibrillation (AF) substrate complexity based on the electrocardiogram (ECG) may improve outcome prediction in patients receiving rhythm control therapies for AF. Multiple parameters to assess AF complexity and predict treatment outcome have been suggested. A comparative study of the predictive performance of complexity parameters on response to therapy and progression of AF in a large patient population is needed to standardize non-invasive analysis of AF. Methods and results: A large variety of ECG complexity parameters were systematically compared in patients with recent onset AF undergoing pharmacological cardioversion (PCV) with flecainide. Parameters were computed on 10-s 12-lead ECGs of 221 patients before drug administration. The ability of ECG parameters to predict successful PCV and progression to persistent AF (mean follow-up 49 months) was evaluated and compared with common clinical predictors. Optimal prediction performance of successful PCV using only one ECG parameter was low, using dominant atrial frequency [lead II, receiver operating area under curve (AUC) 0.66, 95% confidence interval [0.64-0.67]], but the optimal combination of several ECG parameters strongly improved predictive performance (AUC 0.78 [0.76-0.79]). While predictive value of the optimal combination of clinical predictors was low (AUC 0.68 [0.66-0.70], using right atrial volume and weight), adding ECG parameters strongly increased performance (AUC 0.81 [0.79-0.82], P < 0.001). Interestingly, higher dominant frequency and higher f-wave amplitude were associated with increased risk of progression to persistent AF during follow-up. Conclusion: Assessment of AF complexity from 12-lead ECGs significantly improves prediction of successful PCV and progression to persistent AF compared with common clinical and echocardiographic predictors. PMID- 29016758 TI - Non-vitamin K antagonist oral anticoagulants in atrial fibrillation patients undergoing elective cardioversion. AB - Aims: Non-vitamin K antagonist oral anticoagulants (NOAC) have been shown to be safe and effective alternatives to warfarin for the prevention of thromboembolic complications in patients with non-valvular atrial fibrillation (AF). The aim of this study was to investigate the complications and the use of NOACs in AF patients undergoing elective cardioversion. Methods and results: This nationwide multicentre study included consecutive elective cardioversions in AF patients treated with NOACs between October 2011 and May 2016. Data on patient characteristics, antithrombotic treatment and acute (<30 days) complications were collected. One thousand twenty-one patients (mean age 64 years, 70% men) underwent 1291 elective cardioversions, of which 680 (52.7%) cardioversions were performed in patients using dabigatran, 431 (33.4%) rivaroxaban, and 159 (12.3%) apixaban. Mean CHA2DS2-VASc score was 1.8 (+/-1.5). A total of 3 thromboembolic events occurred after the cardioversion (0.2%): 1 patient receiving dabigatran experienced an ischaemic stroke on Day 2 and 1 rivaroxaban treated patient on Day 4. One patient receiving dabigatran experienced a transient ischaemic attack on Day 11. All 3 patients had used recommended doses of the NOAC. A total of 6 (0.5%) clinically relevant, but not serious bleeding events occurred. Only short duration of AF was associated with lower rate of AF recurrence. Conclusion: Thrombotic and bleeding complications related to NOACs were uncommon (<0.5%) in real life AF patients undergoing elective cardioversion. PMID- 29016754 TI - Cardiac troponins: from myocardial infarction to chronic disease. AB - Elucidation of the physiologically distinct subunits of troponin in 1973 greatly facilitated our understanding of cardiac contraction. Although troponins are expressed in both skeletal and cardiac muscle, there are isoforms of troponin I/T expressed selectively in the heart. By exploiting cardiac-restricted epitopes within these proteins, one of the most successful diagnostic tests to date has been developed: cardiac troponin (cTn) assays. For the past decade, cTn has been regarded as the gold-standard marker for acute myocardial necrosis: the pathological hallmark of acute myocardial infarction (AMI). Whilst cTn is the cornerstone for ruling-out AMI in patients presenting with a suspected acute coronary syndrome (ACS), elevated cTn is frequently observed in those without clinical signs indicative of AMI, often reflecting myocardial injury of 'unknown origin'. cTn is commonly elevated in acute non-ACS conditions, as well as in chronic diseases. It is unclear why these elevations occur; yet they cannot be ignored as cTn levels in chronically unwell patients are directly correlated to prognosis. Paradoxically, improvements in assay sensitivity have meant more differential diagnoses have to be considered due to decreased specificity, since cTn is now more easily detected in these non-ACS conditions. It is important to be aware cTn is highly specific for myocardial injury, which could be attributable to a myriad of underlying causes, emphasizing the notion that cTn is an organ-specific, not disease-specific biomarker. Furthermore, the ability to detect increased cTn using high-sensitivity assays following extreme exercise is disconcerting. It has been suggested troponin release can occur without cardiomyocyte necrosis, contradicting conventional dogma, emphasizing a need to understand the mechanisms of such release. This review discusses basic troponin biology, the physiology behind its detection in serum, its use in the diagnosis of AMI, and some key concepts and experimental evidence as to why cTn can be elevated in chronic diseases. PMID- 29016760 TI - Response to the 'Letter to the Editor' from Madaffari et al. about 'Reappraisal and new observations on atrial tachycardia ablated from the non-coronary aortic sinus of Valsalva'. PMID- 29016761 TI - Pulmonary vein laceration during cryoballoon ablation for the treatment of atrial fibrillation. PMID- 29016759 TI - Access to magnetic resonance imaging of patients with magnetic resonance conditional pacemaker and implantable cardioverter-defibrillator systems: results from the Really ProMRI study. AB - Aims: The Really ProMRI study evaluates magnetic resonance imaging (MRI) access for patients with cardiac implantable electronic devices (CIEDs) as well as the performance of magnetic resonance (MR)-conditional leads when undergoing MRI. Methods and results: Patients either with an MR-conditional pacemaker or implantable defibrillator (ICD) system or with at least a component (device or one or more leads) from an MR-conditional system, were asked to fill in a questionnaire when they were referred to a MR scan. The rate of prescription, denial, or execution of MR examinations was evaluated in a 1-year follow-up visit. In total, 555 patients [median age (interquartile range) 72.2 (62.2-78.6); 72% male] were enrolled, 49% (270) with a pacemaker, 51% (285) with an ICD system. Five-hundred and ten patients completed the follow-up period. A total of 37 MRI referrals were reported in 35 patients, with a consequent event rate of 7.0/100 patient-years (CI, 4.9-9.7). Fourteen were denied, while 23 [66%; (CI, 48 81%)] were performed. The number of patients with MR referrals was not statistically different between pacemaker and ICD groups (21 vs. 14; P = 0.178). The rate of scans performed was higher in the pacemaker subjects (19/23 vs. 4/14, P = 0.003), while it was similar between patients with or without a complete MR conditional system (19/30 vs. 4/7, P = 0.606). Conclusion: In this study, we reported a 7.0/100 patient-year's event rate of MR prescriptions in CIED patients. Many examinations were denied, despite MR-conditional systems, especially in ICD patients. Regulatory and cultural changes are needed to allow wider access to MR imaging in CIED patients with MR-conditional systems. PMID- 29016762 TI - Diagnosis of tooth ankylosis using panoramic views, cone beam computed tomography, and histological data: a retrospective observational case series study. AB - Objectives: The aim of this study was to determine whether cone beam computed tomography is a reliable radiological method to diagnose tooth ankylosis. Materials and methods: A series of teeth clinically diagnosed as ankylosed were collected after extraction in a private practice from 2009 to 2015 and analyzed retrospectively. Inclusion criteria comprised permanent molars extracted due to failed tooth eruption in the absence of any visible mechanical obstruction, existing panoramic view (PV), and cone beam computed tomography (CBCT) and histological sections of sufficient quality. The CBCT scans and PVs were evaluated twice for signs of ankylosis by two independent observers using the following score: clear signs, possible signs, and no signs. The histological sections were evaluated and graded similarly to the radiographs by a specialist blinded to the radiographs and treatment. Results: Out of an initial group of 22 patients, 9 subjects with 10 affected teeth were included for final evaluation. The age ranged from 8.3 to 17 years. No agreement was seen in comparing the PV scores to the histological sections. Fair to moderate agreement was seen in comparing the CBCT scores to the histological sections. All histologically confirmed ankylosis were detected in CBCT by both observers but some false positive results were found. Limitation: Only a small sample size was available as the disorder is rare. It is difficult to distinguish ankylosis from primary failure of eruption. Conclusion: CBCT images can be a useful adjunctive diagnostic tool to diagnose ankylosed teeth, but cannot be recommended as a single diagnostic modality as false positive results were found. PMID- 29016763 TI - A cephalometric study of the skeletal and dento-alveolar effects of the modified Louisiana State University activator in Class II malocclusion. AB - Objectives: To analyse the skeletal and dento-alveolar effects of the modified Louisiana State University activator (MLSUA) in Class II treatment. Materials and methods: A test group of 46 participants (25 females, 21 males) with Class II malocclusion treated with MLSUA followed by fixed appliances was compared with a matched Class II control group. Lateral cephalograms were taken at T1 (initial records), T2 (completion of MLSUA treatment), and T3 (before deband). The participants were also divided into two groups: pre-pubertal and pubertal according to skeletal maturity and three groups of different vertical facial patterns at the start of the treatment: brachyfacial, mesofacial, and dolichofacial. Statistical comparisons were performed with t-tests and analysis of variance (ANOVA). Results: Statistically significant supplementary mandibular growth (Co-Gn) in the test group (2.6 mm) was associated with improvement of overjet (OJ), overbite (OB), and molar relationship. Short-term mandibular growth was greater in pubertal than pre-pubertal groups (2.4 mm, P < 0.05). Mandibular incisors retroclined by 2.1 degrees after MLSUA treatment. The brachyfacial group showed greater reduction in the ANB angle and forward movement of pogonion. Mandibular, palatal, and occlusal plane angles showed insignificant change regardless of the facial type. Conclusions: MLSUA treatment corrected the Class II malocclusion by accelerating mandibular growth in the short-term with minimal dento-alveolar compensation, and the correction was maintained before deband. The treatment may be more effective if started at puberty. The mandibular, palatal, and occlusal planes remained stable throughout the treatment. Brachyfacial patients showed more favourable horizontal growth. PMID- 29016764 TI - Development of a novel shock wave catheter ablation system-A validation study in pigs in vivo. AB - Aims: Although the radiofrequency catheter ablation (RFCA) is widely used for the treatment of tachyarrhythmias, it has three fundamental weaknesses as a thermal ablation system, including a limited lesion depth, myoendocardial injury linking to thromboembolism, and prolonged inflammation followed by subsequent recurrences. In order to overcome these limitations, we have been developing a shock wave (SW) catheter ablation (SWCA) system as a novel non-thermal therapy. In the present study, we validated our new SWCA system with increased SW intensity. Methods and results: In a total of 36 pigs, we applied our new SWCA to ventricular muscle in vivo for the following protocols. (i) Epicardial approach (n = 17): The lesion depth achieved by the SWCA from the epicardium was examined. High intensity SW achieved 5.2 +/- 0.9 mm lesions (35 applications), where there was a strong correlation between SW intensity and lesion depth (R = 0.80, P < 0.001, 54 applications). (ii) Endocardial approach (n = 6): The extent of endocardial injury with the two energy sources was examined by electron microscopy (8 applications each). Shock wave catheter ablation markedly reduced myoendothelial injury compared with RFCA (4.3 +/- 1.2 vs. 79.6 +/- 4.8%, P < 0.01). The electrophysiological effects on the SW lesions were also confirmed using three-dimensional mapping system. (iii) Time-course study (n = 6 each): The healing process after ablation therapy was examined. We found transient inflammatory responses and accelerated reparative process with preserved blood flow in the SWCA group. Conclusion: These results indicate that our SWCA system is characterized, as compared with RFCA, by deeper lesion depth, markedly less myoendocardial injury and accelerated tissue repair process. PMID- 29016765 TI - Broad antiarrhythmic effect of mexiletine in different arrhythmia models. AB - Aims: Experimental studies and clinical reports suggest antiarrhythmic properties of mexiletine in different arrhythmias. We aimed at investigating mexiletine in experimental models of atrial fibrillation (AF) as well as in long-QT- (LQTS) and short-QT-syndrome (SQTS). Methods and results: In 15 isolated rabbit hearts, erythromycin (300 uM) was infused for simulation of long-QT-2-syndrome. In further 13 hearts, veratridine was administered to simulate long-QT-3-syndrome. Both drugs induced a significant QT-prolongation (erythromycin: +87 ms, P < 0.01; veratridine: +19 ms, P < 0.05) and increased dispersion of repolarization (erythromycin: +55 ms, P < 0.01; veratridine +31 ms, P < 0.01). Additional infusion of mexiletine (25 uM) resulted in a significant reduction of dispersion (erythromycin: -43 ms, P < 0.01; veratridine: -26 ms, P < 0.05). Reproducible induction of torsade de pointes was observed in 13 of 15 erythromycin-treated hearts (192 episodes) and 6 of 13 veratridine-treated hearts (36 episodes). Additional infusion of mexiletine significantly reduced ventricular tachycardia (VT) incidence. With mexiletine, only 3 of 15 erythromycin-treated hearts (27 episodes) and 1 of 13 veratridine-treated hearts (2 episodes) presented polymorphic VT. In additional 9 hearts, the IK-ATP-channel-opener pinacidil was employed to simulate SQTS and significantly abbreviated ventricular repolarization (QT-interval: -18 ms, P < 0.05) and enhanced induction of ventricular fibrillation (VF). Mexiletine reversed the effects of pinacidil, increase refractory period (+127 ms, P < 0.01) and significantly suppressed induction of VF. In further 13 hearts AF was induced by combined treatment with acetylcholine/isoproterenol. Mexiletine also increased atrial refractory period (+80 ms, P < 0.01) and thereby effectively suppressed atrial fibrillation. Conclusion: Acute infusion of mexiletine significantly reduced the occurrence of polymorphic VT in the presence of pharmacologically simulated LQTS. Furthermore, mexiletine demonstrated potent antiarrhythmic properties in a model of SQTS and in AF. PMID- 29016766 TI - Temporal pattern/episode duration-based classification of atrial fibrillation as paroxysmal vs. persistent: is it time to develop a more integrated prognostic score to optimize management? AB - Atrial fibrillation (AF) is a clinically heterogeneous arrhythmia that is currently classified according to the variety of temporal rhythm based manifestations observed clinically, including 'first detected episode', 'paroxysmal', 'persistent', or 'permanent' AF. Despite being widely adopted by the most recent consensus guidelines, the utility of this classification system to stratify patients into distinct and clinically useful groups that have different outcomes including mortality, morbidity, specific cardiovascular outcomes, and quality of life (QoL), remains questionable. This is particularly true regarding the distinction between paroxysmal and persistent AF. Here, we demonstrate there is limited and conflicting evidence that this distinction is useful in predicting mortality, morbidity (including stroke and heart failure), symptom burden and QoL, although there is convincing evidence that patients with paroxysmal AF have favourable outcomes following electrical cardioversion and have better ablation procedural outcomes. Risk stratification schemes including the CHA2DS2VASc score are widely used to help clinicians stratify patients at high risk of stroke, whilst a number of newer, potentially superior, competitors have also recently been developed. A range of parameters including left atrial (LA) size, LA morphology, LA fibrosis [assessed by magnetic resonance imaging (MRI)] LA appendage morphology and LA function (assessed by echo) have all been recently suggested to identify higher risk patients and may, perhaps in combination with validated risk stratification scores and emerging genetic data, provide clinicians with the information necessary to more accurately stratify patients to ensure better outcomes of specific AF treatments and prevent adverse events. PMID- 29016767 TI - Dual-loop circuit of ventricular tachycardia in repaired tetralogy of Fallot patient. PMID- 29016768 TI - Pulmonary vein re-mapping after cryoballoon ablation for atrial fibrillation. AB - Aims: Establishment of pulmonary vein isolation (PVI) during cryoballoon (CB) ablation is generally confirmed by use of an octapolar inner-lumen mapping catheter (Achieve(r)). The aim of this study is to evaluate the residual PV potential (PVP) using the conventional circular catheter after CB-PVI. Methods and results: A total of 105 consecutive patients (418 PVs) with paroxysmal AF who underwent the initial CB-PVI were prospectively included in this study. Of those, 305 (73%) PVs with real-time recordings of PVP elimination by Achieve(r) catheter during successful PVI were included. After isolation of all 4 PVs, PV antral remapping by conventional circular mapping catheter was performed. After CB-PVI, residual PVP was detected in 4.3% (13/305) of PVs (1.2% of left-superior PV, 2.5% of left-inferior PV, none of right-superior PV, and 20% of right-inferior PV). Almost 60% of residual PV potential was located around the bottom portion of the right-inferior PV. In PVs with residual potential, PV trunk was shorter (12.7 +/- 5.7 mm vs. 18.7 +/- 7.9, P = 0.001), minimal balloon temperature was higher ( 46.6 +/- 5.9 degrees C vs. -50.9 +/- 8.2, P = 0.02), and balloon warming time was shorter (35.6 +/- 17.8 s vs. 50.0 +/- 22.8, P = 0.006) than those without. All residual potentials were eliminated by additional touch up ablation. After the initial ablation procedure, 1-year AF-free rate was 79.5%. Conclusion: PV remapping after CB-PVI revealed residual antral PVP in 4.3% of PVs and in 20% of RIPVs in particular. The Achieve(r) catheter sometimes fails to detect complete PV antral isolation. PMID- 29016769 TI - Safety and efficiency of porous-tip contact-force catheter for drug-refractory symptomatic paroxysmal atrial fibrillation ablation: results from the SMART SF trial. AB - Aims: THERMOCOOL SMARTTOUCH(r) SF Catheter is a new contact-force (CF)-sensing catheter with 56-hole porous tip designed for improved cooling and reduced fluid delivery compared with a standard 6-hole open-irrigated catheter. The SMART SF study examined the periprocedural safety, acute effectiveness, and procedural efficiency of the catheter for drug-refractory symptomatic paroxysmal atrial fibrillation (PAF) ablation. Methods and results: The prospective, open-label, non-randomized SMART-SF was conducted at 17 US sites. Circumferential pulmonary vein (PV) isolation was performed with confirmation of entrance block in all PVs. Stable ablation sites were identified using CARTO VISITAGTM Module. Primary adverse events (AEs; <=1 week of index procedure), periprocedural AEs within 30 days of ablation procedure, acute effectiveness (confirmation of entrance block for targeted PVs), CF, and procedural parameters were assessed. Overall, 165 patients were enrolled (mean age, 62.7 years; male, 57.9%; white, 97%; left ventricular ejection fraction, 60.1 +/- 7%; left atrium diameter, 38.8 +/- 6 mm); 159 underwent radiofrequency ablation and comprised the safety cohort. Primary safety performance criteria were met: primary AE rate was 2.5% (4/159; cardiac tamponade [n = 2], thrombo-embolism [n = 1], transient ischaemic attack [n = 1]). All primary AEs resolved/improved within the 1-month follow-up period. Acute procedural effectiveness was attained in 96.2% (95% confidence interval: 92.0 98.6%) of patients. Procedure time, fluoroscopy time, and fluid delivered were observed in comparison to predecessor catheters. Conclusion: In the SMART-SF trial, the predetermined safety performance goal was met, demonstrating the safety and acute effectiveness of the THERMOCOOL SMARTTOUCH(r) SF Catheter for PAF ablation. PMID- 29016770 TI - Development and validation of a risk score for predicting atrial fibrillation recurrence after a first catheter ablation procedure - ATLAS score. AB - Aims: Several predictors of relapse after catheter ablation of atrial fibrillation (AF) have been established, but assessing each patient's individual risk remains challenging. Our aim was to develop and validate a score to estimate the risk of AF recurrence after the first radiofrequency pulmonary vein isolation (PVI) procedure. Methods and results: Independent predictors of AF relapse were identified retrospectively in a two-centre registry of 1934 patients who underwent a first PVI procedure. Using the Cox regression hazard ratios of designated variables, a risk score was developed in a random sample of 50% of the patients (development cohort) and validated in the remaining (validation cohort) half. The accuracy and discriminative power of the predictive model were assessed in both subgroups. During a follow-up of 4.2 +/- 2.7 years, 522 patients (27%) relapsed. Five independent predictors of AF recurrence were identified and included in the score: age >60 years (1 point), female sex (4 points), non paroxysmal AF (2 points), current smoking (7 points) and indexed left atrial volume (1 point for each 10 mL/m2). The score showed good discriminative power (censored c-statistic of 0.75 in both cohorts). In the development group, AF relapse rates were 8, 11, and 17%/year for low (<6 points), intermediate (6-10 points), and high-risk patients (>10 points), respectively (P < 0.001). In the validation group, AF recurrence rates were 8, 11, and 18%/year, respectively (P < 0.001). Conclusion: A simple risk score to estimate the rate of AF recurrence after ablation was developed and validated. An external assessment of its usefulness as a patient selection tool seems warranted. PMID- 29016771 TI - Predictors of long-term survival free from relapses after extraction of infected CIED. AB - Aims: We explored the possible predictors of long-term prognosis after transvenous lead extraction (TLE) for a cardiac implantable device related infection (CIEDI), including the modified Duke score result. Methods and results: We performed a single centre prospective observational study in a population of consecutive patients referred for TLE to a teaching hospital to treat a CIEDI without associated valve-endocarditis. 121 patients were enrolled between January 2012 and March 2016. According to the modified Duke criteria, the presence of CIED-related endocarditis was rejected in 54.5%, possible in 21.5%, and definite in 24.0%. 20/121 patients died after a mean follow-up of 46.0 +/- 2.5 months, while 7 patients reported hospitalization for CIEDI recurrence/relapse in the same period. Modified Duke score was significantly associated with a poor prognosis at univariate Cox regression analysis (HR 1.847, 95% CI 1.160-2.941; P = 0.010). However, the three factors independently associated with death and/or CIEDI relapse/recurrence were: a 'closed' CIED pocket (HR 2.720; 95% CI 1.135 6.520), presence of ghost at post-TLE transoesophageal echocardiography (HR 3.469; 95% CI 1.420-8.878), and a GFR <60 (HR 4.565; 95% CI 1.668-12.493). Conclusion: CIEDI has a poor long-term prognosis despite an effective TLE. Renal failure, presence of 'ghosts' at post-TLE transoesophageal echocardiography and a closed CIED pocket are associated with a worse prognosis. PMID- 29016772 TI - Do women benefit equally as men from the primary prevention implantable cardioverter-defibrillator? AB - Women traditionally have been and are still underrepresented in research in many important areas of cardiology, and guideline recommendations which also encompass women are mostly based on research conducted predominantly in men. However, there is plausible cause to believe that sex may have a potential influence on the benefit derived from the implantable cardioverter-defibrillators (ICD), alone or in association with cardiac resynchronization therapy. We assessed the possible relationship between sex and outcome with ICD implantation in the setting of primary prevention, by pooling the results of MUSTT, MADIT-II, DEFINITE, COMPANION, SCD-HeFT and DANISH trials in a meta-analysis. We pooled results for female and male patients separately. The results suggest that women as a group do not seem to obtain a significant survival benefit from the primary prevention ICD, contrary to men. This in turn may also have contributed to a relative underestimation of the ICD benefit among males when looking at the results in total. It is time for the medical and research communities to actively question the presumed overarching benefit of ICDs irrespective of sex and engage in systematic scientific efforts to definitively evaluate the value of this intervention in women. PMID- 29016773 TI - Multichannel electrocardiogram diagnostics for the diagnosis of arrhythmogenic right ventricular dysplasia. AB - Aims: The identification of arrhythmogenic right ventricular dysplasia (ARVD) from 12-channel standard electrocardiogram (ECG) is challenging. High density ECG data may identify lead locations and criteria with a higher sensitivity. Methods and results: Eighty-channel ECG recording from patients diagnosed with ARVD and controls were quantified by magnitude and integral measures of QRS and T waves and by a measure (the average silhouette width) of differences in the shapes of the normalized ECG cycles. The channels with the best separability between ARVD patients and controls were near the right ventricular wall, at the third intercostal space. These channels showed pronounced differences in P waves compared to controls as well as the expected differences in QRS and T waves. Conclusion: Multichannel recordings, as in body surface mapping, add little to the reliability of diagnosing ARVD from ECGs. However, repositioning ECG electrodes to a high anterior position can improve the identification of ECG variations in ARVD. Additionally, increased P wave amplitude appears to be associated with ARVD. PMID- 29016774 TI - Alveolar bone changes after rapid maxillary expansion with tooth-born appliances: a systematic review. AB - Background: During rapid maxillary expansion (RME), heavy forces are transmitted to the maxilla by the anchored teeth causing buccal inclination and buccal bone loss of posterior teeth. Objective: To systematically review the literature in order to investigate whether RME causes periodontal sequelae, assessed by cone beam computed tomography (CBCT). Search methods: Fifteen electronic databases and reference lists of studies were searched up to March 2017. Selection criteria: To be included in the systematic review, articles must be human studies on growing subjects, with transversal maxillary deficiency treated with RME and with assessment of buccal bone loss by CBCT images. Only randomized and non-randomized trials were included. Data collection and analysis: Two authors independently performed study selection, data extraction, and risk of bias assessment. Study characteristics (study design, sample size, age, sex, skeletal maturity, type of appliance, daily activation, evaluated linear measurements, observation period, CBCT settings), and study outcomes (loss of buccal bone thickness and marginal bone) were reported according to the PRISMA statement. Results: On the basis of the applied inclusion criteria, only six articles, three randomized clinical trials and three controlled clinical trials were included. An individual analysis of the selected articles was undertaken. The risks of bias of the six trials were scored as medium to low. Limitations: The results of the present systematic review are based on a limited number of studies and only one study included a control group. Conclusions and implications: In all considered studies, significant loss of buccal bone thickness and marginal bone level were observed in anchored teeth, following RME. Further prospective studies correlating the radiological data of bone loss to the periodontal soft tissues reaction after RME are required. A preliminary evaluation of the patient-related risk factors for RR may be advisable when considering to administering RME. Registration: This systematic review was registered in the National Institute of Health Research database with an appropriate protocol number (http://www.crd.york.ac.uk/PROSPERO Protocol: CRD42017062645). Funding: The present study has not received any contributions from private or public funding agencies. PMID- 29016775 TI - Emerging molecular therapies targeting myocardial infarction-related arrhythmias: the role of miRNAs regulation. PMID- 29016776 TI - Atrial fibrillation is associated with decreased total cerebral blood flow and brain perfusion. AB - Aims: Atrial fibrillation (AF) has been associated with cognitive impairment. Additionally, brain volume may be reduced in individuals with AF. Potential causes may include cerebral micro-embolism or reduced stroke volume due to the beat-to-beat variation in AF. The aims of this study were to measure cerebral blood flow and estimate whole brain perfusion in elderly individuals with and without AF. Methods and results: Blood flow in the cervical arteries was measured with phase contrast MRI and brain perfusion estimated in a large cohort from the AGES-Reykjavik Study. Individuals were divided into three groups at the time of the MRI: persistent AF, paroxysmal AF, and no history of AF. Of 2291 participants (mean age 79.5 years), 117 had persistent AF and 78 had paroxysmal AF but were in sinus rhythm at the time of imaging AF. Those with persistent AF had lower cholesterol and used more anti-hypertensive medication and warfarin. The three groups were similar with regard to other cardiovascular risk factors. Those in the persistent AF group had significantly lower total cerebral blood flow on average, 472.1 mL/min, both when compared with the paroxysmal AF group, 512.3 mL/min (P < 0.05) and the no AF group, 541.0 mL/min (P < 0.001). Brain perfusion was lowest in the persistent AF group, 46.4 mL/100 g/min compared with the paroxysmal AF group, 50.9 mL/100 g/min in (P < 0.05) and those with no AF, 52.8 mL/100 g/min (P < 0.001). Conclusion: Persistent AF decreases blood flow to the brain as well as perfusion of brain tissue compared with sinus rhythm. PMID- 29016777 TI - Long-term impact of intrathoracic impedance findings on survival and heart failure hospitalizations after cardiac resynchronization therapy in ICD Registry patients. AB - Aims: To determine adjusted associations among OptiVol(r) threshold crossings, long-term survival, and hospitalizations among heart failure (HF) patients with Medicare coverage in the United States. Methods and results: A cohort with OptiVol(r)-enabled cardiac resynchronization therapy defibrillators (CRT-D) devices from the Implantable Cardioverter Defibrillator Registry was linked to both Medicare claims/summary data and Medtronic's CareLink(r) Network data. An extended multivariable Cox model was used to analyse associations among OptiVol(r) threshold crossings (treated as time-dependent covariates), mortality, and HF-related hospitalizations (HFH). We analysed N = 1565 patients with OptiVol(r)-enabled CRT-D devices (mean age 72.8, 28% women). The median follow-up was 6.3 years. Patients with >15.1% of days above OptiVol(r) threshold (highest quartile) had more than a 4-fold increase in mortality [hazard ratio (HR) 4.2, 95% confidence interval (CI): 3.3-5.3] and more than a 3-fold increase in HFH (HR 3.2, 95% CI: 2.4-4.2) compared with patients having <4.1% of days above threshold (lowest quartile) after adjustment for key covariates. In addition, a single OptiVol(r) crossing was associated with significantly increased rates of both mortality (HR 1.87, 95% CI: 1.27-2.75) and HFH (HR 1.70, 95% CI: 1.28-2.27). Conclusion: In a CRT-D cohort with over 6 years of follow-up, both single OptiVol(r) crossings and time above OptiVol(r) threshold were associated with increased rates of mortality and hospitalization, which has important implications for clinical care. This is the first study integrating device data with Medicare outcomes to validate the long-term significance of OptiVol(r) findings. PMID- 29016778 TI - Comparison between endocardial and epicardial cardiac resynchronization in an experimental model of non-ischaemic cardiomyopathy. AB - Aims: Pacing from the left ventricular (LV) endocardium might increase the likelihood of response to cardiac resynchronization therapy. However, experimental and clinical data supporting this assumption are limited and controversial. The aim of this study was to compare the acute response of biventricular pacing from the LV epicardium and endocardium in a swine non ischaemic cardiomyopathy (NICM) model of dyssynchrony. Methods and results: A NICM was induced in six swine by 3 weeks of rapid ventricular pacing. Biventricular stimulation was performed from 16 paired locations in the LV (8 epicardial and 8 endocardial) with two different atrioventricular (80 and 110 ms) intervals and three interventricular (0, +30, -30 ms) delays. The acute response of the aortic blood flow, LV and right ventricular (RV) pressures, LVdP/dtmax and LVdP/dtmin and QRS complex width and QT duration induced by biventricular stimulation were analysed. The haemodynamic and electrical beneficial responses to either LV endocardial or epicardial biventricular pacing were similar (DeltaLVdP/dtmax: +7.8 +/- 2.2% ENDO vs. +7.3 +/- 1.5% EPI, and DeltaQRS width: 16.8 +/- 1.3% ENDO vs. -17.1 +/- 1.9% EPI; P = ns). Pacing from LV basal regions either from the epicardium or endocardium produced better haemodynamic responses as compared with mid or apical LV regions (P < 0.05). The LV regions producing the maximum QRS complex shortening did not correspond to those inducing the best haemodynamic responses (EPI: r2 = 0.013, P = ns; ENDO: r2 = 0.002, P = ns). Conclusion: Endocardial LV pacing induced similar haemodynamic changes than pacing from the epicardium. The response to endocardial LV pacing is region dependent as observed in epicardial pacing. PMID- 29016779 TI - Is less more? Impact of different ablation protocols on periprocedural complications in second-generation cryoballoon based pulmonary vein isolation. AB - Aims: Second-generation cryoballoon (CB2) based pulmonary vein isolation (PVI) has emerged as an effective treatment option for symptomatic atrial fibrillation (AF). The current study sought to assess the impact of different ablation protocols on the incidence and characteristics of procedural complications in a large patient cohort. Methods and results: A total of 563 consecutive patients with symptomatic AF who underwent CB2-based ablation between July 2012 and January 2016, were assessed. Three different ablation protocols were applied and characterized by (#1) a bonus-freeze following PVI, (#2) no bonus-freeze after PVI, and (#3) a 'time-to-effect'-guided strategy. Major complications occurred in 30/563 patients (5.3%) with phrenic nerve palsy (PNP) as the most frequent complication occurring in 2.7% of the cases. The overall incidence of complications was significantly lower in patients treated with a 'time-to-effect' guided ablation strategy compared with the other ablation protocols (8.1% [17/211] (protocol #1+#2) vs. 3.7% [13/352] (protocol #3), respectively; P = 0.026). The 'time-to-effect' guided ablation protocol was associated with less applied freeze-cycles and shorter freeze-cycle durations. Additionally, shorter procedure times, radiation exposures and lower volumes of contrast medium needed were assessed for the 'time-to-effect' guided protocol as compared with the other ablation protocols. Conclusion: The overall incidence of complications was 5.3% in our analysis. The most frequent complication was PNP. The use of a time-to effect guided ablation protocol was associated with a lower incidence of major complications compared with a bonus-freeze and no bonus-freeze protocol. PMID- 29016780 TI - Analysis of the heart rate variability during cryoballoon ablation of atrial fibrillation. AB - Aims: Vagal responses such as marked bradycardia or a rapid blood pressure decrease are often observed during pulmonary vein (PV) isolation of atrial fibrillation (AF) using a cryoballoon (CB). However, the relationship between the marked vagal response and change in the heart rate variability (HRV) as a marker of the autonomic tone is not well understood. Methods and results: Fifty-four paroxysmal AF patients underwent CB ablation. The CB ablation was started from the right sided PVs in 25 patients (R group) and left sided PVs in 29 (L group). The HRV and haemodynamic status during the procedure were analysed. A vagal response was observed in 16 L group patients (61.5%) during the ablation of the different PVs (RSPV:1, RIPV:5, LSPV:15, LIPV:5), while it was observed in only 2 R group patients (9.5%) (RSPV:0, RIPV:0, LSPV:1, LIPV:1) (P = 0.0002). The HRV in the L group was significantly higher than that in the R group just after the CB ablation especially for the left sided PVs (L group vs. R group, total power of the HRV, median; RSPV, 11184.7 vs. 4360.0, P = 0.21; RIPV, 9044.3 vs. 2115.1, P = 0.01; LSPV, 21186.0 vs. 1314.2, P = 0.0002; LIPV 10265.9 vs. 1236.2, P = 0.0007). Conclusion: A marked increase in the HRV parameters was observed just after the CB ablation. An initial CB ablation of the right PVs decreased the change in the autonomic tone during the right PV ablation and subsequent left PV ablation. It prevented an excessive vagal response during the CB ablation and might be a safe procedure. PMID- 29016781 TI - Effectiveness, safety, and long-term outcomes of non-powered mechanical sheaths for transvenous lead extraction. AB - Aims: To analyse the effectiveness, safety and long-term outcomes of conventional non-powered mechanical systems for transvenous lead extraction (TLE) performed by experienced first operators. Outcomes were assessed according to lead location and type of operating room in which the procedure was performed. Methods and results: Data from 2049 patients (mean age: 65 years), with infectious (40%) or non-infectious (60%) indications, were analysed over a mean of 3.37 (+/-2.29) years. A total of 3426 leads were extracted; and, overall, 95% full procedural, 4% partial procedural, and 98% clinical success were demonstrated. Within the patient cohort, 1.8% (37/2049) experienced major complications, with cardiac tamponade being predominant (30/37). Cardiac tamponade was identified as the main cause of mortality, as well as the cause of all procedure-related deaths (6/2049; 0.3%). Cardiac tamponade occurred in 1.8% of atrial and 0.3% of right ventricular lead extractions, with fatal tamponade reported in 9% of atrial, 40% of ventricular, and 67% of coronary sinus lead extractions. No association between lead location and cardiac tamponade-related mortality was observed; however, lead location did affect the success of pericardiocentesis. The cardiac tamponade related mortality rate was 37% when TLE was performed in an electrophysiology laboratory. No deaths were reported when the procedure was performed in a cardiac surgery or hybrid operating room. Long-term survival was improved when TLE was performed due to non-infectious indications, rather than pocket infection or lead related endocarditis (P < 0.001). Conclusion: Using conventional non-powered mechanical sheaths, TLE was effective even in patients at high risk of complications. PMID- 29016782 TI - To downgrade, or not to downgrade: that is the question. PMID- 29016783 TI - High circulating adiponectin level is associated with poor clinical outcome after catheter ablation for paroxysmal atrial fibrillation. AB - Aims: Circulating adiponectin is known to have anti-diabetic, anti-atherogenic, and anti-inflammatory properties. However, the predictive value of adiponectin in cardiovascular disease has been reported to be contradictory ('adiponectin paradox') and its relationship with atrial fibrillation (AF) is controversial. We hypothesized that pre-procedural plasma level of adiponectin would have prognostic value in patients who underwent AF catheter ablation. Methods and results: This observational cohort study included 874 patients with paroxysmal AF (PAF) (73.0% male, mean age 57.6 +/- 11.2 years) who underwent catheter ablation. Quartile analyses of plasma level of adiponectin were performed to determine AF related clinical factors. Patients in the highest quartile of plasma adiponectin were more likely to be older (P < 0.001), female (P < 0.001), and have a higher CHA2DS2-VASc score (P < 0.001) than patients in the other three quartiles. Plasma level of adiponectin was independently associated with female gender (B 2.92 [1.84~4.00], P < 0.001), older age (B 0.06 [0.03~0.10], P < 0.001), lower body mass index (B - 0.22 [-0.42~-0.03], P = 0.025), and greater LA volume index (B 0.05 [0.01~0.08], P = 0.005). During the 29.9 +/- 18.0 months of follow-up, plasma adiponectin level (HR 1.17 [1.02~1.35], P = 0.022) was independently associated with clinical recurrence of AF, and the clinical recurrence rate was significantly higher in the highest quartile of adiponectin group than the others (log rank P = 0.029), especially in age <65 years (log rank P = 0.038), but not in age >=65. Conclusion: High circulating adiponectin is independently associated with AF recurrence after catheter ablation for PAF, especially younger than 65 years old. PMID- 29016785 TI - Obstructive sleep apnea is associated with increased rotor burden in patients undergoing focal impulse and rotor modification guided atrial fibrillation ablation. AB - Aims: To assess whether obstructive sleep apnea (OSA) was associated with increased rotor burden among atrial fibrillation (AF) patients. Methods and results: We studied 33 consecutive patients who were scheduled for focal impulse and rotor modulation (FIRM) ablation at our institution to describe the mapping, ablation, and outcomes, among patients with and without OSA. Patients underwent biatrial FIRM mapping in AF with ablation of stable rotors in addition to conventional ablation lesion sets. Differences between groups were tested with student's t-tests and Fisher's exact tests, as appropriate. Survival analyses were performed using the Kaplan-Meier method. Twelve of the 33 (36%) patients had OSA and 8 (66%) used continuous positive airway pressure ventilation (CPAP). Obstructive sleep apnea patients had a higher body mass index (BMI) (33.6 vs. 28.8 kg/m2, P = 0.01) and were more commonly on beta blockers (67% vs. 29%, P = 0.03) but were otherwise similar regarding baseline characteristics, medication use, and prior AF treatments, including antiarrhythmic drugs and prior ablation. Focal impulse and rotor modulation mapping demonstrated increased rotor burden in the OSA patients (2.6 +/- 0.9 vs. 2.0 +/- 1.0, P =0.03). The increased rotor burden was more evident in the right atrium (RA) (1.0 +/- 0.7 vs. 0.5 +/- 0.7, P =0.04 compared with left atrium (1.7 +/- 0.8 vs. 1.4 +/- 0.7, P = 0.15). There was no correlation between BMI and total number of rotors (r = 0.0961, P = 0.59). Among the population of patients with OSA, CPAP therapy was associated with a lower number of RA rotors (0.8 +/- 0.7 vs. 1.5 +/- 0.6, P = 0.05) but no significant difference in overall rotors (P = 0.33). Conclusion: Obstructive sleep apnea patients demonstrate increased rotor prevalence, driven predominantly by an increase in RA rotors. CPAP therapy was associated with fewer RA rotors. PMID- 29016784 TI - Sex differences in outcomes of primary prevention implantable cardioverter defibrillator therapy: combined registry data from eleven European countries. AB - Aims: Therapy with an implantable cardioverter defibrillator (ICD) is established for the prevention of sudden cardiac death (SCD) in high risk patients. We aimed to determine the effectiveness of primary prevention ICD therapy by analysing registry data from 14 centres in 11 European countries compiled between 2002 and 2014, with emphasis on outcomes in women who have been underrepresented in all trials. Methods and results: Retrospective data of 14 local registries of primary prevention ICD implantations between 2002 and 2014 were compiled in a central database. Predefined primary outcome measures were overall mortality and first appropriate and first inappropriate shocks. A multivariable model enforcing a common hazard ratio for sex category across the centres, but allowing for centre specific baseline hazards and centre specific effects of other covariates, was adjusted for age, the presence of ischaemic cardiomyopathy or a CRT-D, and left ventricular ejection fraction <=25%. Of the 5033 patients, 957 (19%) were women. During a median follow-up of 33 months (IQR 16-55 months) 129 women (13%) and 807 men (20%) died (HR 0.65; 95% CI: [0.53, 0.79], P-value < 0.0001). An appropriate ICD shock occurred in 66 women (8%) and 514 men (14%; HR 0.61; 95% CI: 0.47-0.79; P = 0.0002). Conclusion: Our retrospective analysis of 14 local registries in 11 European countries demonstrates that fewer women than men undergo ICD implantation for primary prevention. After multivariate adjustment, women have a significantly lower mortality and receive fewer appropriate ICD shocks. PMID- 29016786 TI - Sustainability of outdoor school ground smoking bans at secondary schools: a mixed-method study. AB - Background: Although increasing numbers of countries are implementing outdoor school ground smoking bans at secondary schools, less attention is paid to the post-implementation period even though sustainability of a policy is essential for long-term effectiveness. Therefore, this study assesses the level of sustainability and examines perceived barriers/facilitators related to the sustainability of an outdoor school ground smoking ban at secondary schools. Methods: A mixed-method design was used with a sequential explanatory approach. In phase I, 438 online surveys were conducted and in phase II, 15 semi-structured interviews were obtained from directors of relevant schools. ANOVA (phase I) and a thematic approach (phase II) were used to analyze data. Results: Level of sustainability of an outdoor school ground smoking ban was high at the 48% Dutch schools with an outdoor smoking ban. Furthermore, school size was significantly associated with sustainability. The perceived barriers/facilitators fell into three categories: (i) smoking ban implementation factors (side-effects, enforcement, communication, guidelines and collaboration), (ii) school factors (physical environment, school culture, education type and school policy) and (iii) community environment factors (legislation and social environment). Conclusions: Internationally, the spread of outdoor school ground smoking bans could be further promoted. Once implemented, the ban has become 'normal' practice and investments tend to endure. Moreover, involvement of all staff is important for sustainability as they function as role models, have an interrelationship with students, and share responsibility for enforcement. These findings are promising for the sustainability of future tobacco control initiatives to further protect against the morbidity/mortality associated with smoking. PMID- 29016787 TI - First-in-human: leadless Micra transcatheter pacing system meets the Nanostim leadless cardiac pacing system. PMID- 29016788 TI - Isolation of the superior vena cava from the right atrial posterior wall: a novel ablation approach. AB - Aims: Superior vena cava (SVC) isolation might be difficult to achieve because of the vicinity of the phrenic nerve (PN) and sinus node. Based on its embryogenesis, we hypothesized the presence of preferential conduction from the right atrial (RA) posterior wall, making it possible to isolate the SVC antrally, sparing its anterior and lateral aspect. Methods and results: This is a descriptive cohort study of 105 consecutive patients in which SVC isolation was obtained with radiofrequency ablation, starting in the septal aspect of the SVC RA junction and continued posteriorly and inferiorly targeting sites of early activation until electrical isolation was obtained. Acute SVC isolation was achieved in 103 (98%) patients; the mean distance between the site of SVC isolation and the SVC-RA junction was 19.9 +/- 5.3 (range 9.7-33.7) mm. During follow-up, 2 (2%) patients developed symptomatic diaphragmatic paralysis due to transient right PN injury; 13 patients underwent a repeat ablation: SVC reconnection was observed in 5 patients, and re-isolation was easily achieved by targeting the corresponding sites of early activation. Conclusion : Superior vena cava isolation can be completed by targeting its septal segment and sites of early activation in the posterior SVC-RA junction and RA posterior wall; this is a feasible alternative ablation strategy in patients in which SVC isolation cannot be completed with the standard approach. The risk of sinus node injury or SVC stenosis are eliminated; PN injury is still possible but can easily be prevented with high-output pacing to exclude a true posterior course of the PN. PMID- 29016790 TI - Upgrading or downgrading a cardiac resynchronization therapy device (CRT) device? Gaps and dilemmas in current clinical practice. PMID- 29016789 TI - A technology-based patient and family engagement consult service for the pediatric hospital setting. AB - Objective: The Vanderbilt Children's Hospital launched an innovative Technology Based Patient and Family Engagement Consult Service in 2014. This paper describes our initial experience with this service, characterizes health-related needs of families of hospitalized children, and details the technologies recommended to promote engagement and meet needs. Materials and Methods: We retrospectively reviewed consult service documentation for patient characteristics, health related needs, and consultation team recommendations. Needs were categorized using a consumer health needs taxonomy. Recommendations were classified by technology type. Results: Twenty-two consultations were conducted with families of patients ranging in age from newborn to 15 years, most with new diagnoses or chronic illnesses. The consultation team identified 99 health-related needs (4.5 per consultation) and made 166 recommendations (7.5 per consultation, 1.7 per need). Need categories included 38 informational needs, 26 medical needs, 23 logistical needs, and 12 social needs. The most common recommendations were websites (50, 30%) and mobile applications (30, 18%). The most frequent recommendations by need category were websites for informational needs (39, 50%), mobile applications for medical needs (15, 40%), patient portals for logistical needs (12, 44%), and disease-specific support groups for social needs (19, 56%). Discussion: Families of hospitalized pediatric patients have a variety of health related needs, many of which could be addressed by technology recommendations from an engagement consult service. Conclusion: This service is the first of its kind, offering a potentially generalizable and scalable approach to assessing health-related needs, meeting them with technologies, and promoting patient and family engagement in the inpatient setting. PMID- 29016791 TI - Socioeconomic status and infectious intestinal disease in the community: a longitudinal study (IID2 study). AB - Background: Infectious intestinal diseases (IID) are common, affecting around 25% of people in UK each year at an estimated annual cost to the economy, individuals and the NHS of L1.5 billion. While there is evidence of higher IID hospital admissions in more disadvantaged groups, the association between socioeconomic status (SES) and risk of IID remains unclear. This study aims to investigate the relationship between SES and IID in a large community cohort. Methods: Longitudinal analysis of a prospective community cohort in the UK following 6836 participants of all ages was undertaken. Hazard ratios for IID by SES were estimated using Cox proportional hazard, adjusting for follow-up time and potential confounding factors. Results: In the fully adjusted analysis, hazard ratio of IID was significantly lower among routine/manual occupations compared with managerial/professional occupations (HR 0.74, 95% CI 0.61-0.90). Conclusion: In this large community cohort, lower SES was associated with lower IID risk. This may be partially explained by the low response rate which varied by SES. However, it may be related to differences in exposure or recognition of IID symptoms by SES. Higher hospital admissions associated with lower SES observed in some studies could relate to more severe consequences, rather than increased infection risk. PMID- 29016794 TI - Epidemiology of chronic respiratory diseases and associated factors in the adult Italian population. AB - Background: Detailed epidemiology of Chronic Respiratory Diseases (CRDs) and of their risk and protective factors is needed to plan preventive interventions to reduce the burden of CRDs on population health. This study determines the prevalence of doctor-diagnosed CRDs and its associated factors in the adult Italian population. Methods: Data was collected from adults participating in the ongoing cross-sectional Italian Behavioural Risk Factor Surveillance System (PASSI) between 2013 and 2015. Results: Among 108 705 respondents, 7.0% reported a CRD (3.4% asthma, 2.6% COPD, 1.0% Asthma-COPD Overlap Syndrome). Current smoking was more frequent in the group with CRD compared to those without (30.8% vs. 25.2%, P < 0.001), as was physical inactivity (41.9% vs. 36.4%, P 0.009) and overweight/obesity (52.4% vs. 41.4%, P 0.009). Adults with CRDs also reported appropriate perception of insufficient physical activity and excessive body weight, adopted protective behaviours and received preventive interventions more often than those without CRDs. Conclusions: Italian adults with CRDs are more likely to be exposed to aggravating factors but are also knowledgeable of their condition and amenable to behaviour change. Since effective interventions for modifying these factors are available, there is an opportunity to reduce the significant disease burden of CRDs through specifically targeted health promotion interventions. PMID- 29016793 TI - Mining 100 million notes to find homelessness and adverse childhood experiences: 2 case studies of rare and severe social determinants of health in electronic health records. AB - Objective: Understanding how to identify the social determinants of health from electronic health records (EHRs) could provide important insights to understand health or disease outcomes. We developed a methodology to capture 2 rare and severe social determinants of health, homelessness and adverse childhood experiences (ACEs), from a large EHR repository. Materials and Methods: We first constructed lexicons to capture homelessness and ACE phenotypic profiles. We employed word2vec and lexical associations to mine homelessness-related words. Next, using relevance feedback, we refined the 2 profiles with iterative searches over 100 million notes from the Vanderbilt EHR. Seven assessors manually reviewed the top-ranked results of 2544 patient visits relevant for homelessness and 1000 patients relevant for ACE. Results: word2vec yielded better performance (area under the precision-recall curve [AUPRC] of 0.94) than lexical associations (AUPRC = 0.83) for extracting homelessness-related words. A comparative study of searches for the 2 phenotypes revealed a higher performance achieved for homelessness (AUPRC = 0.95) than ACE (AUPRC = 0.79). A temporal analysis of the homeless population showed that the majority experienced chronic homelessness. Most ACE patients suffered sexual (70%) and/or physical (50.6%) abuse, with the top-ranked abuser keywords being "father" (21.8%) and "mother" (15.4%). Top prevalent associated conditions for homeless patients were lack of housing (62.8%) and tobacco use disorder (61.5%), while for ACE patients it was mental disorders (36.6%-47.6%). Conclusion: We provide an efficient solution for mining homelessness and ACE information from EHRs, which can facilitate large clinical and genetic studies of these social determinants of health. PMID- 29016792 TI - Antidepressant-Like Actions of Inhibitors of Poly(ADP-Ribose) Polymerase in Rodent Models. AB - Background: Many patients suffering from depressive disorders are refractory to treatment with currently available antidepressant medications, while many more exhibit only a partial response. These factors drive research to discover new pharmacological approaches to treat depression. Numerous studies demonstrate evidence of inflammation and elevated oxidative stress in major depression. Recently, major depression has been shown to be associated with elevated levels of DNA oxidation in brain cells, accompanied by increased gene expression of the nuclear base excision repair enzyme, poly(ADP-ribose) polymerase-1. Given these findings and evidence that drugs that inhibit poly(ADP-ribose) polymerase-1 activity have antiinflammatory and neuroprotective properties, the present study was undertaken to examine the potential antidepressant properties of poly(ADP ribose) polymerase inhibitors. Methods: Two rodent models, the Porsolt swim test and repeated exposure to psychological stressors, were used to test the poly(ADP ribose) polymerase inhibitor, 3-aminobenzamide, for potential antidepressant activity. Another poly(ADP-ribose) polymerase inhibitor, 5-aminoisoquinolinone, was also tested. Results: Poly(ADP-ribose) polymerase inhibitors produced antidepressant-like effects in the Porsolt swim test, decreasing immobility time, and increasing latency to immobility, similar to the effects of fluoxetine. In addition, 3-aminobenzamide treatment increased sucrose preference and social interaction times relative to vehicle-treated control rats following repeated exposure to combined social defeat and unpredictable stress, mediating effects similar to fluoxetine treatment. Conclusions: The poly(ADP-ribose) polymerase inhibitors 3-aminobenzamide and 5-aminoisoquinolinone exhibit antidepressant-like activity in 2 rodent stress models and uncover poly(ADP-ribose) polymerase as a unique molecular target for the potential development of a novel class of antidepressants. PMID- 29016796 TI - Empowerment of athletes with cardiac disorders: a new paradigm. AB - Athletes with cardiac disorders frequently pose an ethical and medical dilemma to physicians assessing their eligibility to participate in sport. In recent decades, patient empowerment has been gaining increasing recognition in clinical decision-making. Empowerment is a process through which people are involved over the decisions and actions that affect their own lives. In the context of a cardiac disorder, empowerment means giving an athlete the chance to participate in the decision about whether or not to remain active in competition. Three models of treatment decision-making are described in this article, with progressive levels of empowerment: the paternalistic model (the athlete has a passive role), the shared-decision making model (both athlete and physician participate in the decision), and the informed-decision making (the decision is made by the athlete while the role of the physician is solely to provide information). This article critically discusses the issues involved in disqualification of athletes with cardiovascular disorders and suggests possible ways of incorporating patient empowerment in potentially career-ending decisions. The authors propose a model of empowerment, which gives patients the opportunity to choose how much, and if, they would like to be involved in the decision-making process. PMID- 29016797 TI - Multiple clinical profiles of families with the short QT syndrome. AB - Aims: Short QT syndrome (SQTS) is a rare cardiac channelopathy characterized by a shortened corrected QT (QTc)-interval that can lead to ventricular arrhythmias and sudden cardiac death. The aim of this study was to investigate the clinical phenotypes and long-term outcomes of three families harbouring genetic mutations associated with the SQTS. Methods and results: Clinical data included medical history, physical examination, 12-lead ECG, 24-h Holter-ECG, and transthoracic echocardiography from three index patients and their first-degree relatives. Next generation clinical exome sequencing and genetic cascade screening were performed in index patients and their relatives, respectively. Two index patients experienced malignant ventricular arrhythmias and one patient suffered from arrhythmogenic syncope during a median follow-up period of 8 years. They all had genetic mutations associated with the SQTS. Two mutations were found in the KCNH2 gene, and one in the CACNA2D gene. One patient had an additional SCN10A variant. Alive and mutation-positive family members had short QTc-intervals, but no further phenotypic manifestations. None of the mutation-negative family members had an abnormal ECG or any symptoms. In all patients with shortened QTc intervals, the QTc-interval had a low long-term variability and QTc shortening always remained detectable by 12-lead ECG. Conclusion: This study shows the variety of phenotypic manifestations in different families with SQTS. It further emphasizes the importance of a 12-lead ECG for early diagnosis, and the utility of next generation sequencing for the identification of mutations associated with the SQTS. PMID- 29016795 TI - Leonurine Exerts Antidepressant-Like Effects in the Chronic Mild Stress-Induced Depression Model in Mice by Inhibiting Neuroinflammation. AB - Background: Leonurine is an active alkaloid that is extracted from Traditional Chinese Medicine Herba leonuri. Emerging evidence indicates that leonurine produces neuroprotective effects in ischemic stroke, Parkinson's disease, and Alzheimer's disease. However, the effect of leonurine in neuropsychiatric disorders, especially in major depression, remains unknown. Methods: We used the chronic mild stress mouse model to explore the antidepressant effects of leonurine and the potential mechanisms. Behavioral tests including sucrose preference test, forced swimming test, and tail suspension test were taken to evaluate depression symptoms. Moreover, the contents of monoamine neurotransmitters in hippocampus and prefrontal cortex were measured by high performance liquid chromatography. Neuronal morphology was detected by transmission electron microscopy. Results: Administration of leonurine (60 mg/kg) for 4 weeks significantly alleviated depression-like behaviors of chronic mild stress mice, including increased sucrose preference and reduced immobility time in forced swimming test and tail suspension test. We further found that leonurine (60 mg/kg) effectively restored the levels of 5-hydroxytryptamine, noradrenaline, and dopamine in the hippocampus and prefrontal cortex of chronic mild stress mice, accompanied by amelioration of hippocampal neuronal damage. Furthermore, leonurine (60 mg/kg) significantly inhibited the production of proinflammatory cytokine interleukin-1beta, interleukin-6 and TNF-alpha, and suppressed the nuclear factor kappa B signaling pathway. Conclusions: These findings demonstrate that leonurine exerts antidepressant-like effects, which may be mediated, at least in part, by improving monoamine neurotransmitters and inhibiting neuroinflammation. Our study provides insight into the potential of leonurine in depression therapy. PMID- 29016798 TI - Broad Phylogenetic Occurrence of the Oxygen-Binding Hemerythrins in Bilaterians. AB - Animal tissues need to be properly oxygenated for carrying out catabolic respiration and, as such, natural selection has presumably favored special molecules that can reversibly bind and transport oxygen. Hemoglobins, hemocyanins, and hemerythrins (Hrs) fulfill this role, with Hrs being the least studied. Knowledge of oxygen-binding proteins is crucial for understanding animal physiology. Hr genes are present in the three domains of life, Archaea, Bacteria, and Eukaryota; however, within Animalia, Hrs has been reported only in marine species in six phyla (Annelida, Brachiopoda, Priapulida, Bryozoa, Cnidaria, and Arthropoda). Given this observed Hr distribution, whether all metazoan Hrs share a common origin is circumspect. We investigated Hr diversity and evolution in metazoans, by employing in silico approaches to survey for Hrs from of 120 metazoan transcriptomes and genomes. We found 58 candidate Hr genes actively transcribed in 36 species distributed in 11 animal phyla, with new records in Echinodermata, Hemichordata, Mollusca, Nemertea, Phoronida, and Platyhelminthes. Moreover, we found that "Hrs" reported from Cnidaria and Arthropoda were not consistent with that of other metazoan Hrs. Contrary to previous suggestions that Hr genes were absent in deuterostomes, we find Hr genes present in deuterostomes and were likely present in early bilaterians, but not in nonbilaterian animal lineages. As expected, the Hr gene tree did not mirror metazoan phylogeny, suggesting that Hrs evolutionary history was complex and besides the oxygen carrying capacity, the drivers of Hr evolution may also consist of secondary functional specializations of the proteins, like immunological functions. PMID- 29016800 TI - The prognostic impact of single extra-stimulus on programmed ventricular stimulation in Brugada patients without previous cardiac arrest: multi-centre study in Japan. AB - Aims: The prognostic value of programmed electrical stimulation (PES) in Brugada syndrome (BrS) remains controversial. One of the reasons for discrepant results may be due to the selection of stimulation protocol. We evaluated the prognostic value of a positive PES result (PES+) according to the inducible pacing sites and the number of extra-stimuli in BrS patients without previous cardiac arrest (CA). Methods and results: We enrolled 224 consecutive BrS patients without previous CA (mean age 51 +/- 14 years, 209 males), who underwent PES with the identical protocol. Clinical outcomes of development of CA were explored in the patients with and without PES+ according to sites and number of extra-stimuli. During a mean follow-up period of 76 months, 12 cardiac events (CE: sudden cardiac death or documented VF) occurred (8 with and 4 without PES+). The incidence of CE was not different in patients with and without PES+, those with PES+ from RVA (n = 72) or RVOT (n = 60), and those with and without PES+ by up to 2 extra-stimuli (n = 58). However, in patients that were PES+ by a single extra-stimulus (n = 8) the incidence of CE was significantly higher than in those without PES+ (8.8 vs. 0.6%/year, P < 0.0001). On univariate analysis, syncope, spontaneous type 1 ECG, and PES+ by a single extra-stimulus were associated with CE. Conclusion: Details of the stimulation protocol may be important for risk assessment in BrS patients without previous CA. A single extra-stimulus may be useful in stratifying risk in patients with spontaneous type 1 ECG and syncope. PMID- 29016801 TI - Guerra F, et al. Symptomatic atrial fibrillation and risk of cardiovascular events: data from the Euro Heart Survey. PMID- 29016799 TI - Signatures of Selection and Interspecies Introgression in the Genome of Chinese Domestic Pigs. AB - Chinese domestic pigs have experienced strong artificial selection for thousands of years. However, the molecular mechanisms underlying the selection-causing phenotypic changes in Chinese domestic pigs are still largely unknown. Here we used whole-genome resequencing data of 54 pigs from 9 Chinese diverse breeds and 16 wild boars from 7 localities across China to identify genes that show evidence of positive selection in the process of domestication. A total of 14 candidate domestication regions were detected by selective sweep analyses of genetic differentiation and variability, and a set of genes in these candidate domestication regions were found to be related to metabolic process, development, reproduction, olfactory, behavior, and nervous system. The most promising candidate gene under selection - TBX19 - probably underlies the metabolic alteration and developmental traits, and may also associate with timidity of Chinese domestic pigs. Intriguingly, we found that the haplotype at TBX19 locus shared by nearly all Chinese domestic pigs was possibly introgressed from another Sus species. We also revealed the AHR gene associated with female reproduction is under strong positive selection. These results advance our understanding of the evolutionary history of Chinese domestic pigs and shed insights into identifying functionally important genes/mutations contributing to the phenotypic diversity in pigs. PMID- 29016803 TI - The bipolar ablation of refractory typical atrial flutter with CARTO 3 Confidense system. PMID- 29016802 TI - Intra-atrial re-entrant tachycardia in congenital heart disease: types and relation of isthmus to atrial voltage. AB - Background: Intra-atrial re-entrant tachycardia (IART) is a frequent and severe complication in patients with congenital heart disease (CHD). Cavotricuspid isthmus (CTI)-related IART is the most frequent mechanism. However, due to fibrosis and surgical scars, non-CTI-related IART is also frequent. Objective: The main objective of this study was to describe the types of IART and circuit locations and to define a cut-off value for unhealthy tissue in the atria. Methods and results: This observational study included all consecutive patients with CHD who underwent a first ablation procedure for IART from January 2009 to December 2015 (94 patients, 39.4% female, age: 36.55 +/- 14.9 years, 40.4% with highly complex cardiac disease). During the study, 114 IARTs were ablated (1.21 +/- 0.41 IARTs per patient). Cavotricuspid isthmus-related IART was the only arrhythmia in 51% (n = 48) of patients, non-CTI-related IART was the only mechanism in 27.7% (n = 26), and 21.3% of patients (n = 20) presented both types of IART. In cases of non-CTI-related IART, the most frequent location of IART isthmus was the lateral or posterolateral wall of the venous atria, and a voltage cut-off value for unhealthy tissue in the atria of 0.5 mV identified 95.4% of IART isthmus locations. Conclusion: In our population with a high proportion of complex CHD, CTI-related IART was the most frequent mechanism, although non-CTI related IART was present in 49% of patients (alone or with concomitant CTI related IART). A cut-off voltage of 0.5 mV could identify 95.4% of the substrates in non-CTI-related IART. PMID- 29016804 TI - The double adenosine test: a simple and non-invasive tip to unmask unapparent pre excitations: an example of Mahaim fibres. PMID- 29016805 TI - Dissecting human gliomas by single-cell RNA sequencing. AB - Diffuse gliomas are the most common human primary brain tumors and remain incurable. They are complex entities in which diverse genetic and nongenetic effects determine tumor biology and clinical course. Our current understanding of gliomas in patients is primarily based on genomic and transcriptomic methods that have profiled them as bulk, providing critical information yet masking the diversity of cells within each tumor. Recent advances in single-cell DNA and RNA profiling have paved the way to studying tumors at cellular resolution. Here, we review initial studies deploying single-cell analysis in clinical glioma samples, with a focus on RNA expression profiling. We highlight how these studies provide new insights into glioma biology, tumor heterogeneity, cancer cell lineages, cancer stem cell programs, the tumor microenvironment, and glioma classification. PMID- 29016806 TI - Differential Patterns of Subcortical Activity Evoked by Glial GLT-1 Blockade in Prelimbic and Infralimbic Cortex: Relationship to Antidepressant-Like Effects in Rats. AB - Background: Glutamatergic neurotransmission has emerged as a novel target in antidepressant drug development, with a critical role of the ventral anterior cingulate cortex. We recently reported that blockade of the astrocytic glutamate transporter GLT-1 with dihydrokainic acid in infralimbic cortex (rodent equivalent of ventral anterior cingulate cortex), but not in the adjacent prelimbic cortex, evoked robust antidepressant-like effects through alpha-amino-3 hydroxy-5-methyl-4-isoxazolepropionic acid receptor activation and increased serotonin release. Methods: 2-deoxy-2-[18F]-fluoro-D-glucose-positron emission tomography and computed tomography in 36 male Wistar rats microinfused bilaterally in prelimbic cortex or infralimbic cortex with dihydrokainic acid or vehicle. Results: Dihydrokainic acid microinfusion in infralimbic cortex and prelimbic cortex evoked dramatically different regional patterns of subcortical activity. In infralimbic cortex, dihydrokainic acid selectively affected midbrain areas, whereas in prelimbic cortex it affected the basal ganglia, the thalamus, and both superior and inferior colliculi. Conclusions: These results highlight the differential connectivity of infralimbic and prelimbic cortex with subcortical brain regions and support the involvement of infralimbic cortex midbrain pathway in the antidepressant-like effects of dihydrokainic acid. PMID- 29016807 TI - A recombinant lentiviral PDGF-driven mouse model of proneural glioblastoma. AB - Background: Mouse models of glioblastoma (GBM), the most aggressive primary brain tumor, are critical for understanding GBM pathology and can contribute to the preclinical evaluation of therapeutic agents. Platelet-derived growth factor (PDGF) signaling has been implicated in the development and pathogenesis of GBM, specifically the proneural subtype. Although multiple mouse models of PDGF-driven glioma have been described, they require transgenic mice engineered to activate PDGF signaling and/or impair tumor suppressor genes and typically represent lower grade glioma. Methods: We designed recombinant lentiviruses expressing both PDGFB and a short hairpin RNA targeting Cdkn2a to induce gliomagenesis following stereotactic injection into the dentate gyrus of adult immunocompetent mice. We engineered these viruses to coexpress CreERT2 with PDGFB, allowing for deletion of floxed genes specifically in transduced cells, and designed another version of this recombinant lentivirus in which enhanced green fluorescent protein was coexpressed with PDGFB and CreERT2 to visualize transduced cells. Results: The dentate gyrus of injected mice showed hypercellularity one week post-injection and subsequently developed bona fide tumors with the pathologic hallmarks of GBM leading to a median survival of 77 days post-injection. Transcriptomic analysis of these tumors revealed a proneural gene expression signature. Conclusion: Informed by the genetic alterations observed in human GBM, we engineered a novel mouse model of proneural GBM. While reflecting many of the advantages of transgenic mice, this model allows for the facile in vivo testing of gene function in tumor cells and makes possible the rapid production of large numbers of immunocompetent tumor-bearing mice for preclinical testing of therapeutics. PMID- 29016808 TI - Molecular differences in IDH wildtype glioblastoma according to MGMT promoter methylation. AB - Background: O6-methylguanine-DNA-methyltransferase (MGMT) promoter methylation status is a predictive biomarker in glioblastoma. We investigated whether this marker furthermore defines a molecularly distinct tumor subtype with clinically different outcome. Methods: We analyzed copy number variation (CNV) and methylation profiles of 1095 primary and 92 progressive isocitrate dehydrogenase wildtype glioblastomas, including paired samples from 49 patients. DNA mutation data from 182 glioblastoma samples of The Cancer Genome Atlas (TCGA) and RNA expression from 107 TCGA and 55 Chinese Glioma Genome Atlas samples were analyzed. Results: Among untreated glioblastomas, MGMT promoter methylated (mMGMT) and unmethylated (uMGMT) tumors did not show different CNV or specific gene mutations, but a higher mutation count in mMGMT tumors. We identified 3 methylation clusters. Cluster 1 showed the highest average methylation and was enriched for mMGMT tumors. Seventeen genes including gastrulation brain homeobox 2 (GBX2) were found to be hypermethylated and downregulated on the mRNA level in mMGMT tumors. In progressive glioblastomas, platelet derived growth factor receptor alpha (PDGFRA) and GLI2 amplifications were enriched in mMGMT tumors. Methylated MGMT tumors gain PDGFRA amplification of PDGFRA, whereas uMGMT tumors with amplified PDGFRA frequently lose this amplification upon progression. Glioblastoma patients surviving <6 months and with mMGMT harbored less frequent epidermal growth factor receptor (EGFR) amplifications, more frequent TP53 mutations, and a higher tumor necrosis factor-nuclear factor-kappaB (TNF NFkappaB) pathway activation compared with patients surviving >12 months. Conclusions: MGMT promoter methylation status does not define a molecularly distinct glioblastoma subpopulation among untreated tumors. Progressive mMGMT glioblastomas and mMGMT tumors of patients with short survival tend to have more unfavorable molecular profiles. PMID- 29016809 TI - Longitudinal assessment of late-onset neurologic conditions in survivors of childhood central nervous system tumors: a Childhood Cancer Survivor Study report. AB - Background: Survivors of childhood central nervous system (CNS) tumors experience high rates of treatment-related neurologic sequelae. Whether survivors continue to be at increased risk for new events as they age is unknown. Methods: Adverse neurologic health conditions in 5-year survivors of CNS tumors from the Childhood Cancer Survivor Study (n = 1876) were evaluated longitudinally at a median 23.0 years from diagnosis (range, 5.1-38.9), median age at last evaluation 30.3 years (range, 6.1-56.4). Multivariable regression estimated hazard ratios (HRs) and 95% CIs. Results: From 5 to 30 years post diagnosis, cumulative incidence increased for seizures from 27% to 41%, motor impairment 21% to 35%, and hearing loss 9% to 23%. Risks were elevated compared with siblings (eg, seizures HR: 12.7; 95% CI: 9.6-16.7; motor impairment HR: 7.6; 95% CI: 5.8-9.9; hearing loss HR: 18.4; 95% CI: 13.1-25.9). Regional brain doses of radiation therapy were associated with development of new deficits (eg, frontal >=50 Gy and motor impairment HR: 2.0; 95% CI: 1.2-3.4). Increased risk for motor impairment was also associated with tumor recurrence (HR: 2.6; 95% CI: 1.8-3.8), development of a meningioma (HR: 2.3; 95% CI: 0.9-5.4), and stroke (HR: 14.9; 95% CI: 10.4-21.4). Seizure risk was doubled by recurrence (HR: 2.3; 95% CI: 1.6-3.2), meningioma (HR: 2.6; 95% CI: 1.1-6.5), and stroke (HR: 2.0; 95% CI: 1.1-3.4). Conclusions: CNS tumor survivors remain at risk for new-onset adverse neurologic events across their lifespans at a rate greater than siblings. Cranial radiation, stroke, tumor recurrence, and development of meningioma were independently associated with late-onset adverse neurologic sequelae. PMID- 29016811 TI - Drone Transport of Chemistry and Hematology Samples Over Long Distances. AB - Objectives: We addressed the stability of biological samples in prolonged drone flights by obtaining paired chemistry and hematology samples from 21 adult volunteers in a single phlebotomy event-84 samples total. Methods: Half of the samples were held stationary, while the other samples were flown for 3 hours (258 km) in a custom active cooling box mounted on the drone. After the flight, 19 chemistry and hematology tests were performed. Results: Seventeen analytes had small or no bias, but glucose and potassium in flown samples showed an 8% and 6.2% bias, respectively. The flown samples (mean, 24.8 degrees C) were a mean of 2.5 degrees C cooler than the stationary samples (mean, 27.3 degrees C) during transportation to the flight field as well as during the flight. Conclusions: The changes in glucose and potassium are consistent with the magnitude and duration of the temperature difference between the flown and stationary samples. Long drone flights of biological samples are feasible but require stringent environmental controls to ensure consistent results. PMID- 29016810 TI - miR-30c-5p regulates macrophage-mediated inflammation and pro-atherosclerosis pathways. AB - Aims: Atherosclerosis is an inflammatory disease wherein cholesterol-loaded macrophages play a major role. MicroRNAs and microparticles propagate inflammatory pathways and are involved in cardiovascular disease. We aimed to screen and validate circulating microRNAs correlated with atherosclerosis development in humans, and to dissect the molecular mechanisms associated with atherogenesis using in vitro and in vivo approaches. Methods and results: A panel of 179 secreted microRNAs was screened in plasma samples of patients with and without atherosclerosis, and validated cross-sectionally and prospectively in patients followed for up to 11 years. miR-30c-5p was inversely correlated with total and LDL cholesterol, carotid intimal media thickness (CIMT), presence and future development of plaques. Using a human macrophage line and in vitro gene silencing strategies, we found that miR-30c-5p was downregulated by oxidized LDL (oxLDL) via the scavenger receptor CD36 and inhibition miR processing by Dicer. In turn, miR-30c-5p downregulation was responsible for the effects of oxLDL on macrophage IL-1beta release, caspase-3 expression, and apoptosis. miR-30c-5p loaded into microparticles was uptaken by macrophages and regulated target genes, like caspase-3, at transcriptional level. To establish the relevance of this pathway on endothelial damage as the earliest step of atherogenesis, we show that systemic miR-30c-5p knockdown induced caspase-3 and impaired endothelial healing after carotid injury in C57Bl/6 J mice. Conclusions: With an unbiased screening of secreted microRNAs, we identify reduction of miR-30c-5p in microparticles as a promoter of early atherosclerosis, by conveying pro-inflammatory pro-apoptotic signals and impairing endothelial healing. Therefore, stimulation of miR-30c-5p is a candidate direct anti-atherosclerotic therapy. PMID- 29016812 TI - Brain volume reduction after whole-brain radiotherapy: quantification and prognostic relevance. AB - Background: Recent studies have questioned the value of adding whole-brain radiotherapy (WBRT) to stereotactic radiosurgery (SRS) for brain metastasis treatment. Neurotoxicity, including radiation-induced brain volume reduction, could be one reason why not all patients benefit from the addition of WBRT. In this study, we quantified brain volume reduction after WBRT and assessed its prognostic significance. Methods: Brain volumes of 91 patients with cerebral metastases were measured during a 150-day period after commencing WBRT and were compared with their pretreatment volumes. The average daily relative change in brain volume of each patient, referred to as the "brain volume reduction rate," was calculated. Univariate and multivariate Cox regression analyses were performed to assess the prognostic significance of the brain volume reduction rate, as well as of 3 treatment-related and 9 pretreatment factors. A one-way analysis of variance was used to compare the brain volume reduction rate across recursive partitioning analysis (RPA) classes. Results: On multivariate Cox regression analysis, the brain volume reduction rate was a significant predictor of overall survival after WBRT (P < 0.001), as well as the number of brain metastases (P = 0.002) and age (P = 0.008). Patients with a relatively favorable prognosis (RPA classes 1 and 2) experienced significantly less brain volume decrease after WBRT than patients with a poor prognosis (RPA class 3) (P = 0.001). There was no significant correlation between delivered radiation dose and brain volume reduction rate (P = 0.147). Conclusion: In this retrospective study, a smaller decrease in brain volume after WBRT was an independent predictor of longer overall survival. PMID- 29016813 TI - Epicardial left atrial appendage AtriClip occlusion reduces the incidence of stroke in patients with atrial fibrillation undergoing cardiac surgery. AB - Aims: Left atrial appendage (LAA) occlusion has emerged as an interesting alternative to oral anticoagulation (OAC) for stroke prevention in patients with atrial fibrillation (AF). We report the safety, efficacy, and durability of concomitant device-enabled epicardial LAA occlusion during open-heart surgery. In addition to long-term follow-up, we evaluate the impact on stroke risk in this selected population. Methods and results: A total of 291 AtriClip devices were deployed epicardially in patients (mean CHA2DS2-VASc-Score: 3.1 +/- 1.5) undergoing open-heart surgery (including isolated coronary artery bypass grafting, valve, or combined procedures) comprising of forty patients from a first-in-man device trial (NCT00567515) and 251 patients from a consecutive institutional registry thereafter. In all patients (n = 291), the LAA was successfully excluded and overall mean follow-up (FU) was 36 +/- 23months (range: 1-97 months). No device-related complications were detected throughout the FU period. Long-term imaging work-up (computed tomography) in selected patients >=5years post-implant (range: 5.1-8.1 years) displayed complete LAA occlusion with no signs of residual reperfusion or significant LAA stumps. Subgroup analysis of patients with discontinued OAC during FU (n = 166) revealed a relative risk reduction of 87.5% with an observed ischaemic stroke-rate of 0.5/100 patient-years compared with what would have been expected in a group of patients with similar CHA2DS2-VASc scores (expected rate of 4.0/100 patient years). No strokes occurred in the subgroup with OAC. Conclusion: The long-term results from our first-in-man prospective human trial plus our institutional registry of epicardial LAA occlusion with the AtriClip in patients with AF undergoing cardiac surgery demonstrate the safety and durability of the procedure. In addition, our data are suggestive for the potential efficacy of LAA occlusion in reducing the incidence of stroke. If validated in future large randomized trials, routine LAA occlusion in patients undergoing cardiac surgery (with contraindications to treatment with oral anticoagulants) may represent a reasonable adjunct procedure to reduce the risk of future stroke. Clinical Trial Registration: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00567515. PMID- 29016814 TI - Early posttreatment assessment of MRI perfusion biomarkers can predict long-term response of lung cancer brain metastases to stereotactic radiosurgery. AB - Background: Imaging criteria to evaluate the response of brain metastases to stereotactic radiosurgery (SRS) in the early posttreatment period remains a crucial unmet need. The aim of this study is to correlate early (within 12 wk) posttreatment perfusion MRI changes with long-term outcomes after treatment of lung cancer brain metastases with SRS. Methods: Pre- and posttreatment perfusion MRI scans were obtained in patients treated with SRS for intact non-small cell lung cancer brain metastases. Time-dependent leakage (Ktrans), blood plasma volume (Vp), and extracellular extravascular volume (Ve) were calculated for each lesion. Patients were followed longitudinally with serial MRI until death, progression, or intervention (whole brain radiation or surgery). Results: We included 53 lesions treated with SRS from 41 total patients. Median follow-up after treatment was 11 months. Actuarial local control at one year was 85%. Univariate analysis demonstrated a significant difference (P = 0.032) in posttreatment Ktrans SD between patients with progressive disease (mean = 0.0317) and without progressive disease (mean = 0.0219). A posttreatment Ktrans SD cutoff value of 0.017 was highly sensitive (89%) for predicting progressive disease and no progressive disease. Early posttreatment volume change was not associated with outcome (P = 0.941). Conclusion: Posttreatment Ktrans SD may be used as an early posttreatment imaging biomarker to help predict long-term response of lung cancer brain metastases to SRS. This can help identify patients who will ultimately fail SRS and allow for timelier adjustment in treatment approach. These data should be prospectively validated in larger patient cohorts and other histologies. PMID- 29016817 TI - Association between socioeconomic factors and ICD implantation in a publicly financed health care system: a Danish nationwide study. AB - Aims: For patients surviving out-of-hospital cardiac arrest (OHCA) with a shockable rhythm, implantable cardioverter defibrillator (ICD) is recommended for non-reversible causes of arrest. We aimed to determine factors associated with implantation of ICD and survival in patients surviving non-AMI OHCA in a nationwide register covering all OHCAs in Denmark. Methods and results: We identified 36 950 OHCAs between 2001 and 2012, 1700 of whom were ICD naive, >=18 years, of non-AMI cardiac aetiology and surviving until discharge. Six hundred fifty eight patients had ICD implanted during index admission. Association to ICD implantation during index admission was analysed in logistic regression, survival was assessed using Cox regression. Implantable cardioverter defibrillator implantation increased during the study period [odds ratio (OR) 1-year increase: 1.04, 95% confidence intervals (95% CI): 1.00-1.08, P = 0.03]. Non-shockable rhythm and age >=70 years were associated with lower odds of ICD implantation (ORnon-shockable: 0.27, 95% CI: 0.19-0.37, P < 0.001, OR70-79 years: 0.71, 95% CI: 0.52-0.98, P = 0.04, OR>=80 years: 0.13, 95% CI: 0.07-0.22, P < 0.001). Non AMI ischaemic heart disease, highest income tertile and chronic heart failure were associated with higher odds (ORIHD: 2.51, 95% CI: 1.77-3.60, P < 0.001, ORhighest income tertile: 1.58, 95% CI: 1.06-2.23, P = 0.02, ORHF: 1.77, 95% CI: 1.35-2.32, P < 0.001). Implantable cardioverter defibrillator implantation was associated with a lower risk of mortality (HR: 0.70, 95% CI: 0.53-0.92, P = 0.01). Conclusion: Implantable cardioverter defibrillator implantation rates increased over the study period. CHF, previous IHD and high income were associated with ICD implantation, while older age and non-shockable rhythm was associated with lower odds of ICD implantation. Implantable cardioverter defibrillator implantation was associated with higher survival rates. PMID- 29016815 TI - Glioblastoma in elderly patients: solid conclusions built on shifting sand? AB - Management of glioblastoma in the elderly population is challenging. In the near future, more than half of patients with this tumor will be over the age of 65. Clinicians have been historically reluctant to treat such patients with the same intensity as younger patients. Due to upper age limits or poor accrual of elderly patients in clinical trials, randomized data for this patient population have been relatively sparse until recently. In this review, we will discuss the concept of an elderly patient population, describe evidence for molecular differences in glioblastoma of elderly versus young patients, evaluate recent first-line trials studying glioblastoma in elderly patients, and discuss best therapeutic practices including the value of molecular testing. PMID- 29016819 TI - Tissue specificity of in vitro drug sensitivity. AB - Objectives: We sought to investigate the tissue specificity of drug sensitivities in large-scale pharmacological studies and compare these associations to those found in drug clinical indications. Materials and Methods: We leveraged the curated cell line response data from PharmacoGx and applied an enrichment algorithm on drug sensitivity values' area under the drug dose-response curves (AUCs) with and without adjustment for general level of drug sensitivity. Results: We observed tissue specificity in 63% of tested drugs, with 8% of total interactions deemed significant (false discovery rate <0.05). By restricting the drug-tissue interactions to those with AUC > 0.2, we found that in 52% of interactions, the tissue was predictive of drug sensitivity (concordance index > 0.65). When compared with clinical indications, the observed overlap was weak (Matthew correlation coefficient, MCC = 0.0003, P > .10). Discussion: While drugs exhibit significant tissue specificity in vitro, there is little overlap with clinical indications. This can be attributed to factors such as underlying biological differences between in vitro models and patient tumors, or the inability of tissue-specific drugs to bring additional benefits beyond gold standard treatments during clinical trials. Conclusion: Our meta-analysis of pan cancer drug screening datasets indicates that most tested drugs exhibit tissue specific sensitivities in a large panel of cancer cell lines. However, the observed preclinical results do not translate to the clinical setting. Our results suggest that additional research into showing parallels between preclinical and clinical data is required to increase the translational potential of in vitro drug screening. PMID- 29016820 TI - Selective BCL-XL inhibition promotes apoptosis in combination with MLN8237 in medulloblastoma and pediatric glioblastoma cells. AB - Background: CNS tumors, including medulloblastoma and pediatric glioblastoma (pGBM) account for the majority of solid pediatric malignancies. There remains an unmet need to identify novel treatment approaches in poor prognosis and relapsed pediatric brain tumors, where therapeutic options are limited. Small-molecule B cell lymphoma 2 (BCL-2) family inhibitors may enhance tumor cell killing when combined with conventional and targeted chemotherapeutic agents. We investigated the effect of disrupting BCL-2 and B cell lymphoma-extra large (BCL-XL) protein function using ABT-263, ABT-199 and WEHI-539 in medulloblastoma and pGBM cells following treatment with MLN8237, an Aurora kinase inhibitor under investigation as a novel agent for the treatment of malignant brain tumors. Methods: Tumor cell growth and viability were determined by MTT/WST-1 assays and flow cytometry. Effects on cell phenotype, cell cycle progression, and ploidy were determined by live cell imaging and DNA content analysis. Apoptosis was determined by annexin V/propidium iodide staining and time-lapse microscopy and confirmed by measuring caspase-3/7 activity and western blotting and by short interfering RNA (siRNA) knockdown of BCL-2 associated X protein/BCL-2 antagonist killer (BAX/BAK). Results: ABT-263, in combination with MLN8237, reduced mitotic slippage and polyploidy and promoted the elimination of mitotically defective cells via a BAX/BAK-dependent, caspase-mediated apoptotic pathway. The BCL-XL antagonist, WEHI-539, significantly augmented tumor cell killing when used in combination with MLN8237, as well as sensitized resistant brain tumor cells to a novel BAX activator, SMBA1. In addition, siRNA-mediated knockdown of BCL-XL sensitized pGBM and medulloblastoma cells to MLN8237 and mimicked the effect of combination drug treatment. Conclusion: Selective small-molecule inhibitors of BCL-XL may enhance the efficacy of MLN8237 and other targeted chemotherapeutic agents. PMID- 29016818 TI - Posterior fossa syndrome and long-term neuropsychological outcomes among children treated for medulloblastoma on a multi-institutional, prospective study. AB - Background: Patients treated for medulloblastoma who experience posterior fossa syndrome (PFS) demonstrate increased risk for neurocognitive impairment at one year post diagnosis. The aim of the study was to examine longitudinal trajectories of neuropsychological outcomes in patients who experienced PFS compared with patients who did not. Methods: Participants were 36 patients (22 males) who experienced PFS and 36 comparison patients (21 males) who were matched on age at diagnosis and treatment exposure but did not experience PFS. All patients underwent serial evaluation of neurocognitive functioning spanning 1 to 5 years post diagnosis. Results: The PFS group demonstrated lower estimated mean scores at 1, 3, and 5 years post diagnosis on measures of general intellectual ability, processing speed, broad attention, working memory, and spatial relations compared with the non-PFS group. The PFS group exhibited estimated mean scores that were at least one standard deviation below the mean for intellectual ability, processing speed, and broad attention across all time points and for working memory by 5 years post diagnosis. Processing speed was stable over time. Attention and working memory declined over time. Despite some change over time, caregiver ratings of executive function and behavior problem symptoms remained within the average range. Conclusion: Compared with patients who do not experience PFS, patients who experience PFS exhibit greater neurocognitive impairment, show little recovery over time, and decline further in some domains. Findings highlight the particularly high risk for long-term neurocognitive problems in patients who experience PFS and the need for close follow-up and intervention. PMID- 29016821 TI - Super-response to cardiac resynchronization therapy reduces appropriate implantable cardioverter defibrillator therapy. AB - Aims: To determine the frequency of implantable cardioverter defibrillator (ICD) therapy following cardiac resynchronization therapy (CRT-D) implantation in super and non-super responders and whether greater improvement in left ventricular (LV) function after CRT is associated with a reduced burden in ICD therapy. Methods and results: This is a two-centre, retrospective study between January 2002 and September 2011. Patients were classified as non-super responders and super responders based on the post-CRT ejection fraction (EF) of < 50% and >=50%, respectively. Of 629 recipients of CRT-D, 37 (5.9%) were super-responders. Implantable cardioverter defibrillator follow-up was available for a mean duration of 6.2 +/- 2.7 years. The 5-year rate of antitachycardia pacing (ATP) in super-responders was significantly lower than in non-super responders (2.7% vs. 22.1%, P = 0.004). Super-responders also had a lower 5-year rate of appropriate ICD shock compared with non-super responders (2.7% vs. 14.3%, P = 0.03). On multivariable analysis, factors associated with appropriate ICD therapy (ICD shock/ATP) include male gender (hazard ratio, HR 1.97, 95% confidence interval, 95% CI 1.15-3.35), secondary prevention indication (HR 2.09, 95% CI 1.13-3.85), increased baseline LV end-systolic diameter (HR 1.03 per mm, 95% CI 1.01-1.06) and higher baseline EF (HR 1.03 per %, 95% CI 1.00-1.06) while super-responder status was highly protective (HR 0.13, 95% CI 0.02-0.91). Conclusion: Recipients of CRT-D that normalize their EF have very low rates of ventricular arrhythmias requiring appropriate ICD therapy compared with those that do not. PMID- 29016816 TI - Molecular and Epigenetic Mechanisms for the Complex Effects of Stress on Synaptic Physiology and Cognitive Functions. AB - Evidence over the past decades has found that stress, particularly through the corticosterone stress hormones, produces complex changes in glutamatergic signaling in prefrontal cortex, which leads to the alteration of cognitive processes medicated by this brain region. Interestingly, the effects of stress on glutamatergic transmission appear to be "U-shaped," depending upon the duration and severity of the stressor. These biphasic effects of acute vs chronic stress represent the adaptive vs maladaptive responses to stressful stimuli. Animal studies suggest that the stress-induced modulation of excitatory synaptic transmission involves changes in presynaptic glutamate release, postsynaptic glutamate receptor membrane trafficking and degradation, spine structure and cytoskeleton network, and epigenetic control of gene expression. This review will discuss current findings on the key molecules involved in the stress-induced regulation of prefrontal cortex synaptic physiology and prefrontal cortex mediated functions. Understanding the molecular and epigenetic mechanisms that underlie the complex effects of stress will help to develop novel strategies to cope with stress-related mental disorders. PMID- 29016823 TI - The effect of cardiorespiratory fitness assessment in preventive health checks: a randomised controlled trial. AB - Background: Poor cardiorespiratory fitness (CRF) increases morbidity and mortality risks. Routine CRF assessment in clinical practice has thus been advocated, but little is known about the effect. In this study, we investigated the effect of CRF assessment on CRF in a preventive health check programme. Methods: We used a randomised design, in which we invited 4153 middle-aged adults and included 2201 participants who received a preventive health check with CRF assessment (intervention) or without CRF assessment (control). After 1 year, participants were examined. The primary outcomes were adjusted absolute (l/min), relative (ml/kg/min), and poor (%) CRF assessed by the Astrand-Ryhming test. We adjusted for baseline physical activity and intra-cluster correlation within general practices. Results: A total of 901 attended the 1-year follow-up. In the intervention group, absolute CRF, relative CRF, and poor CRF were 2.7 l/min (95% confidence interval [CI]: 2.6; 2.8), 34.5 ml/kg/min (95% CI: 33.5; 35.4), and 31.0% (95% CI: 26.8; 35.2). In the control group, the corresponding figures were 2.8 l/min (95% CI: 2.7; 2.9), 35.2 ml/kg/min (95% CI: 34.2; 36.1), and 25.9% (95% CI: 21.8; 30.0). Adjusted absolute CRF was lower in the intervention group (-0.1 l/min [95% CI: -0.2; -0.01]). Adjusted relative CRF (-0.7 ml/kg/min [95% CI: 2.0; 0.6]) and poor CRF (5.0% [95% CI: -0.002; 10.1]) did not differ between groups. No differences were found when adjusting for potential confounding factors. Conclusion: Preventive health checks with CRF assessment did not provide higher CRF levels at 1-year follow-up than preventive health checks without CRF assessment. PMID- 29016822 TI - Platelet-Derived Growth Factor as an Antidepressant Treatment Selection Biomarker: Higher Levels Selectively Predict Better Outcomes with Bupropion-SSRI Combination. AB - Background: Platelet derived growth factor is integral to maintenance of blood brain barrier, increases in response to blood brain barrier disruption, and may reflect neuroinflammation. Based on previous reports of better outcomes with dopaminergic antidepressants in depressed patients with elevated inflammatory biomarkers, we hypothesize that elevated peripheral platelet derived growth factor levels can serve as a powerful biomarker for selecting dopaminergic antidepressants. Methods: Platelet derived growth factor, basic fibroblast growth factor, and granulocyte colony stimulating factor were measured as part of Bioplex Pro human cytokine 27-plex kit in participants of the Combining Medications to Enhance Depression Outcomes trial who provided baseline plasma (n=166) and were treated with either bupropion-plus-escitalopram, escitalopram plus-placebo, or venlafaxine-plus-mirtazapine. Differential changes in overall symptom severity and anhedonia as well as side effects were tested with a treatment-arm-by-biomarker interaction in mixed model analyses. Effect of biomarkers with significant interaction was calculated in subsequent analyses stratified by treatment arm. Results: There was a significant treatment-arm-by platelet derived growth factor interaction for depression severity (P=.03) and anhedonia (P=.008) but not for side effects (P=.44). Higher baseline platelet derived growth factor level was associated with greater reduction in depression severity (effect size=0.71, P=.015) and anhedonia (effect size=0.66, P=.02) in the bupropion- selective serotonin reuptake inhibitor but not the other two treatment arms. There was no significant treatment-arm-by-biomarker interaction for both depression severity and side effects with the other two biomarkers. Conclusion: As compared with selective serotonin reuptake inhibitor monotherapy or venlafaxine-plus-mirtazapine, bupropion-plus-escitalopram selectively improves anhedonia, which in turn results in improved overall depression severity in depressed patients with elevated platelet derived growth factor levels. PMID- 29016825 TI - NLPReViz: an interactive tool for natural language processing on clinical text. AB - The gap between domain experts and natural language processing expertise is a barrier to extracting understanding from clinical text. We describe a prototype tool for interactive review and revision of natural language processing models of binary concepts extracted from clinical notes. We evaluated our prototype in a user study involving 9 physicians, who used our tool to build and revise models for 2 colonoscopy quality variables. We report changes in performance relative to the quantity of feedback. Using initial training sets as small as 10 documents, expert review led to final F1scores for the "appendiceal-orifice" variable between 0.78 and 0.91 (with improvements ranging from 13.26% to 29.90%). F1for "biopsy" ranged between 0.88 and 0.94 (-1.52% to 11.74% improvements). The average System Usability Scale score was 70.56. Subjective feedback also suggests possible design improvements. PMID- 29016826 TI - Emotion-regulation ability, role stress and teachers' mental health. AB - Background: Work-related stressors, including role ambiguity and role conflict, are related to psychological maladjustment and mental ill-health. However, to date, the role of personal resources such as emotion-regulation ability (ERA) in the prediction of mental health indicators has not been addressed. Aims: To examine whether ERA would contribute to explaining teachers' depression, anxiety and stress symptoms beyond role ambiguity and role conflict. Methods: We carried out a cross-sectional questionnaire survey. We used a correlation matrix and hierarchical regression models to analyse the data. Results: Three hundred and thirty-six Spanish teachers (185 female) from several grade levels completed the surveys (40% response rate). Role ambiguity and role conflict were positively related to depression, anxiety and stress symptoms. ERA was negatively related to teachers' scores on depressive, anxious and stress symptoms, with predictive power above the main effects of role ambiguity and role conflict. An interaction between role ambiguity and ERA was also significant in predicting depression. Conclusions: Our study provides preliminary evidence suggesting the development of integrative models considering work-related stressors along with personal resources such as ERA aiming to prevent teachers' mental ill-health. Future studies should examine the influence of ERA on psychological symptoms using longitudinal designs. PMID- 29016827 TI - Successful implant of a leadless pacemaker with tine-based fixation next to an abandoned battery-depleted screw-in helix fixation leadless device. PMID- 29016824 TI - NLRP3 Inflammasome Contributes to Lipopolysaccharide-induced Depressive-Like Behaviors via Indoleamine 2,3-dioxygenase Induction. AB - Background: Inflammation may play a significant role in the pathogenesis of depression, although the molecular target for the treatment of inflammation mediated depressive symptoms remains to be elucidated. Recent studies have implicated the NLRP3 inflammasome in various psychiatric disorders, including depression. However, the underlying mechanism by which NLRP3 inflammasome activation mediates the progression of depressive-like behaviors remains poorly understood. Methods: We examined whether NLRP3 deficiency influenced depressive like behaviors and cerebral inflammation following systemic administration of lipopolysaccharide in mice. To further assess the contribution of the NLRP3 inflammasome to the progression of depression, we evaluated the effects of NLRP3 signaling on levels of indoleamine 2,3-dioxygenase. Results: Nlrp3-deficient mice exhibited significant attenuation of depressive-like behaviors and cerebral caspase-1 activation in a lipopolysaccharide-induced model of depression. Treatment with the antidepressant amitriptyline failed to block NLRP3-dependent activation of caspase-1, but inhibited lipopolysaccharide-promoted production of interleukin-1beta mRNA via suppressing NF-kappaB signaling in mouse mixed glial cultures. Interestingly, lipopolysaccharide administration produced NLRP3 dependent increases in indoleamine 2,3-dioxygenase expression and activity of mouse brain. Furthermore, inflammasome-activating stimulations, but not treatment with the inflammasome product interleukin-1beta, triggered indoleamine 2,3 dioxygenase mRNA induction in mixed glial cells. Conclusions: Our data indicate that the NLRP3 inflammasome is significantly implicated in the progression of systemic inflammation-induced depression. NLRP3-dependent caspase-1 activation produced significant increases in indoleamine 2,3-dioxygenase levels, which may play a significant role in lipopolysaccharide-induced depression. Collectively, our findings suggest that indoleamine 2,3-dioxygenase is a potential downstream mediator of the NLRP3 inflammasome in inflammation-mediated depressive-like behaviors. PMID- 29016828 TI - Workers' health surveillance: implementation of the Directive 89/391/EEC in Europe. AB - Background: European Union (EU) Directive 89/391 addressed occupational health surveillance, which recommends to provide workers with 'access to health surveillance at regular intervals', aiming to prevent work-related and occupational diseases. Aims: To investigate how EU countries adopted this Directive. Methods: We invited one selected representative per member state to complete a questionnaire. Results: All 28 EU countries implemented the Directive in some form. Workers' health surveillance (WHS) is available to all workers in 15 countries, while in 12, only specific subgroups have access. In 21 countries, workers' participation is mandatory, and in 22, the employer covers the cost. In 13 countries, access to WHS is not available to all workers but depends on exposure to specific risk factors, size of the enterprise or belonging to vulnerable groups. In 26 countries, the employer appoints and revokes the physician in charge of WHS. Twelve countries have no recent figures, reports or cost-benefit analyses of their WHS programmes. In 15 countries where reports exist, they are often in the native language. Conclusions: Coverage and quality of occupational health surveillance should be evaluated to facilitate learning from good practice and from scientific studies. We propose a serious debate in the EU with the aim of protecting workers more effectively, including the use of evidence-based WHS programmes. PMID- 29016829 TI - Differential reporting of work-related mental ill-health in doctors. AB - Background: Evidence suggests that the medical profession is reluctant to report mental ill-health despite its high prevalence. Aims: To compare differential reporting patterns in the incidence of work-related mental ill-health (WRMIH) affecting doctors with selected comparison occupational groups, as determined by surveillance by general practitioners (GPs), specialist psychiatrists and occupational physicians (OPs). Methods: New cases of medically reported WRMIH were reported prospectively between 2006 and 2009 by GPs, psychiatrists and OPs as part of The Health and Occupation Research (THOR) network. For GP and psychiatry reporting schemes, incidence rates (IRs) for doctors, nurses, teachers, corporate managers and protective service workers were calculated using information from the Labour Force Survey as the denominator. In OP surveys, participating reporters provided denominator information to calculate IRs for doctors, nurses and teachers. Results: Average annual IRs expressed per 100000 person/years employed as reported by GPs, psychiatrists and OPs, respectively, were: doctors (309, 971, 430), nurses (891, 208, 670), teachers (1040, 136, 210) and for GPs and psychiatrists, respectively, were: protective service workers (1432, 721) and corporate managers (428, 90). Psychiatrists reported a higher incidence of WRMIH in doctors, whereas GPs reported higher incidences of WRMIH in other occupations (chi-squared test, P < 0.001). Conclusions: The distribution of the incidence of new cases reported across different schemes suggests a differential reporting pattern of WRMIH in doctors. The higher IR for doctors in psychiatrist-reported WRMIH could be due to factors such as disease severity and bypassing formal referral channels. PMID- 29016830 TI - A stepwise approach to conduit puncture for electrophysiological procedures in patients with Fontan circulation. AB - Aims: In patients with Fontan circulation, the conduit may be punctured for electrophysiological procedures. We evaluated the feasibility and safety of a stepwise approach to conduit puncture in adults who have undergone Fontan operation. Methods and results: We included 13 consecutive patients with lateral tunnel or extracardiac conduit Fontan circulation [median age (interquartile range), 24.0 (16.0-25.0) years; seven men] who had undergone electrophysiological procedures. We performed a stepwise approach to conduit puncture: 1st, Brockenbrough needle; 2nd, Brockenbrough needle with snare; 3rd, extra-steep Brockenbrough needle with/without snare; 4th radiofrequency transseptal needle with/without snare; 5th, wiring through the puncture; 6th, conduit dilation with angioplasty balloon; 7th, non-compliant or cutting balloon; and 8th, Inoue dilator. In 12 patients, conduit puncture was successful. In two, one, and two patients with a lateral tunnel made of the pericardium or right atrial wall, conduit puncture was performed by steps 1st, 2nd, and 4th, respectively. In one, three, two, and one patient with the Goretex lateral tunnel or extracardiac conduit, conduit puncture was performed by steps 1st, 6th, 7th, and 8th, respectively. Puncture time was significantly longer in patients with Goretex conduits than with pericardial conduits [62.0 (50.0-120.0) and 11.5 (10.0-14.8) min, respectively; P < 0.001]. A snare was necessary in patients with angles <= 35 degrees between the conduit wall and vertical line. Conclusion: A stepwise conduit puncture approach is feasible and safe in patients with lateral tunnel and extracardiac conduit Fontan circulation. Goretex conduit puncture was more difficult than pericardial conduit puncture. PMID- 29016831 TI - Estimating the prevalence of diabetes mellitus and thyroid disorders using medication data in Flanders, Belgium. AB - Background: Various methods exist to estimate disease prevalences. The aim of this study was to determine whether dispensed, self-reported and prescribed medication data could be used to estimate the prevalence of diabetes mellitus and thyroid disorders. Second, these pharmaco-epidemiological estimates were compared with prevalences based on self-reported diagnoses and doctor-registered diagnoses. Methods: Data on medication for diabetes and thyroid disorders were obtained from three different sources in Flanders (Belgium) for 2008: a purely administrative database containing data on dispensed medication, the Belgian National Health Interview Survey for self-reported medication and diagnoses, and a patient record database for prescribed medication and doctor-registered diagnoses. Prevalences were estimated based on medication data and compared with each other. Cross-tabulations of dispensed medication and self-reported diagnoses, and prescribed medication and doctor-registered diagnoses, were investigated. Results: Prevalences based on dispensed medication were the highest (4.39 and 2.98% for diabetes and thyroid disorders, respectively). The lowest prevalences were found using prescribed medication (2.39 and 1.72%, respectively). Cross-tabulating dispensed medication and self-reported diagnoses yielded a moderate to high sensitivity for diabetes (90.4%) and thyroid disorders (77.5%), while prescribed medication showed a low sensitivity for doctor registered diagnoses (56.5 and 43.6%, respectively). The specificity remained above 99% in all cases. Conclusions: This study was the first to perform cross tabulations for disease prevalence estimates between different databases and within (sub)populations. Purely administrative database was shown to be a reliable source to estimate disease prevalence based on dispensed medication. Prevalence estimates based on prescribed or self-reported medication were shown to have important limitations. PMID- 29016834 TI - The effect of ventricular pre-excitation on ventricular wall motion and left ventricular systolic function. AB - Aims: The relationship between ventricular pre-excitation and left ventricular dysfunction has been described in the absence of sustained supraventricular tachycardia in a series of case reports. There have been no systematic studies about the effect of ventricular pre-excitation with different accessory pathway locations on ventricular wall motion and left ventricular (LV) systolic function. Methods and results : Thirty patients were selected for each of 4 groups, including those with right septal pathways (Group 1), right free-wall pathways (Group 2), left free-wall pathways (Group 3), and non-pre-excited patients undergoing electrophysiological evaluation for supraventricular tachycardia. We analysed the influence of the location of the accessory pathway on ventricular wall motion, systolic function, ventricular synchronism, and LV size. Right-sided accessory pathways were associated with abnormal motion of the interventricular septum, LV dyssynchrony, decreased LV systolic function, and increased LV diameter. Eighteen of 60 cases (30.0%) with right-sided accessory pathways had LV dyssynchrony, and these patients had lower LV ejection fraction and higher LV end diastolic diameter. Conclusion : Right-sided accessory pathways may impair ventricular wall motion and LV systolic function, resulting in decreased LV ejection fraction and increased LV end-diastolic diameter. These effects occurred in patients with LV dyssynchrony. These effects, including LV dyssynchrony, resolved after radiofrequency ablation. A right-sided free-wall accessory pathway may have more detrimental effects than a septal accessory pathway. Left ventricular dyssynchrony and abnormal interventricular septal motion appeared to be responsible for the pathogenesis of LV dysfunction and remodelling. PMID- 29016835 TI - Quality of life is not improved after mitral valve surgery combined with epicardial left atrial cryoablation as compared with mitral valve surgery alone: a substudy of the double blind randomized SWEDish Multicentre Atrial Fibrillation study (SWEDMAF). AB - Aims: Concomitant surgical ablation of atrial fibrillation (AF) in patients undergoing mitral valve surgery (MVS) has almost become routine despite lack of convincing information about improved quality-of-life (QOL) and clinical benefit. Quality-of-life was therefore assessed after MVS with or without epicardial left atrial cryoablation. Methods and results: Sixty-five patients with permanent AF randomized to MVS with or without left atrial cryoablation, in the double-blinded multicentre SWEDMAF trial, replied to the Short Form 36 QOL survey at 6 and 12 months follow-up. The QOL scores at 12 month follow-up did not differ significantly between patients undergoing MVS combined with cryoablation vs. those undergoing MVS alone regarding Physical Component Summary mean 42.8 (95% confidence interval 38.3-47.3) vs. mean 44.0 (40.1-47.7), P = 0.700 or Mental Component Summary mean 53.1 (49.7-56.4) vs. mean 48.4 (44.6-52.2), P = 0.075. All patients, irrespective of allocated procedure, reached the same QOL after surgery as an age-matched Swedish general population. The Physical Component Summary in patients with sinus rhythm did also not differ from those in AF at 12 months; mean 45.4 (42.0-48.7) vs. mean 40.5 (35.5-45.6), P = 0.096) nor was there a difference in Mental Component Summary; mean 51.0 (48.0-54.1) vs. mean 49.6 (44.6 54.5), P = 0.581). Conclusion: Left atrial cryoablation added to MVS does not improve health-related QOL in patients with permanent AF, a finding that raises concerns regarding recommendations made for this combined procedure. PMID- 29016833 TI - The impact of surgery in molecularly defined low-grade glioma: an integrated clinical, radiological, and molecular analysis. AB - Background: Extensive resections in low-grade glioma (LGG) are associated with improved overall survival (OS). However, World Health Organization (WHO) classification of gliomas has been completely revised and is now predominantly based on molecular criteria. This requires reevaluation of the impact of surgery in molecularly defined LGG subtypes. Methods: We included 228 adults who underwent surgery since 2003 for a supratentorial LGG. Pre- and postoperative tumor volumes were assessed with semiautomatic software on T2-weighted images. Targeted next-generation sequencing was used to classify samples according to current WHO classification. Impact of postoperative volume on OS, corrected for molecular profile, was assessed using a Cox proportional hazards model. Results: Median follow-up was 5.79 years. In 39 (17.1%) histopathologically classified gliomas, the subtype was revised after molecular analysis. Complete resection was achieved in 35 patients (15.4%), and in 54 patients (23.7%) only small residue (0.1-5.0 cm3) remained. In multivariable analysis, postoperative volume was associated with OS, with a hazard ratio of 1.01 (95% CI: 1.002-1.02; P = 0.016) per cm3 increase in volume. The impact of postoperative volume was particularly strong in isocitrate dehydrogenase (IDH) mutated astrocytoma patients, where even very small postoperative volumes (0.1-5.0 cm) already negatively affected OS. Conclusion: Our data provide the necessary reevaluation of the impact of surgery in molecularly defined LGG and support maximal resection as first-line treatment for molecularly defined LGG. Importantly, in IDH mutated astrocytoma, even small postoperative volumes have negative impact on OS, which argues for a second-look operation in this subtype to remove minor residues if safely possible. PMID- 29016836 TI - Putting "multiforme" back into glioblastoma: intratumoral transcriptome heterogeneity is a consequence of its complex morphology. PMID- 29016837 TI - Multicenter pilot study of radiochemotherapy as first-line treatment for adults with medulloblastoma (NOA-07). AB - Background: Medulloblastoma in adult patients is rare, with 0.6 cases per million. Prognosis depends on clinical factors and medulloblastoma entity. No prospective data on the feasibility of radiochemotherapy exist. The German Neuro Oncology Working Group (NOA) performed a prospective descriptive multicenter single-arm phase II trial to evaluate feasibility and toxicity of radio polychemotherapy. Methods: The NOA-07 trial combined craniospinal irradiation with vincristine, followed by 8 cycles of cisplatin, lomustine, and vincristine. Adverse events, imaging and progression patterns, histological and genetic markers, health-related quality of life (HRQoL), and cognition were evaluated. Primary endpoint was the rate of toxicity-related treatment terminations after 4 chemotherapy cycles, and the toxicity profile. The feasibility goal was reached if at least 45% of patients received at least 4 cycles of maintenance chemotherapy. Results: Thirty patients were evaluable. Each 50% showed classic and desmoplastic/nodular histology. Sixty-seven percent were classified into the sonic hedgehog (SHH) subgroup without TP53 alterations, 13% in wingless (WNT), and 17% in non-WNT/non-SHH. Four cycles of chemotherapy were feasible in the majority (n = 21; 70.0%). Hematological side effects and polyneuropathy were prevalent toxicities. During the active treatment period, HRQoL and verbal fluency improved significantly. The 3-year event-free survival rate was 66.6% at the time of databank lock. Conclusions: Radio-polychemotherapy did lead to considerable toxicity and a high amount of dose reductions throughout the first 4 chemotherapy cycles that may affect efficacy. Thus, we propose frequent patient surveillance using this regimen. Modifications of the regimen may increase feasibility of radio-polychemotherapy of adult patients with medulloblastoma. PMID- 29016838 TI - The HAND1 frameshift A126FS mutation does not cause hypoplastic left heart syndrome in mice. AB - Aims: To test if a human Hand1 frame shift mutation identified in human samples is causative of hypoplastic left heart syndrome (HLHS). Methods and results: HLHS is a poorly understood single ventricle congenital heart defect that affects two to three infants in every 10 000 live births. The aetiologies of HLHS are largely unknown. The basic helix-loop-helix transcription factor HAND1 is required for normal heart development. Interrogation of HAND1 sequence from fixed HLHS tissues identified a somatic frame-shift mutation at Alanine 126 (NP_004812.1 p.Ala126Profs13X defined as Hand1A126fs). Hand1A126fs creates a truncated HAND1 protein that predictively functions as dominant negative. To determine if this mutation is causative of HLHS, we engineered a conditional Hand1A126fs mouse allele. Activation of this allele with Nkx2.5Cre results in E14.5 lethality accompanied by cardiac outflow tract and intraventricular septum abnormalities. Using alphaMHC-Cre or Mef2CAHF-Cre to activate Hand1A126fs results in reduced phenotype and limited viability. Left ventricles of Hand1A126FS mutant mice are not hypoplastic. Conclusions: Somatically acquired Hand1A126FS mutation is not causative of HLHS. Hand1A126FS mutation does exhibit embryonic lethal cardiac defects that reflect a dominant negative function supporting the critical role of Hand1 in cardiogenesis. PMID- 29016839 TI - Prognostic relevance of genetic alterations in diffuse lower-grade gliomas. AB - Background: Diffuse lower-grade gliomas (LGGs) are genetically classified into 3 distinct subtypes based on isocitrate dehydrogenase (IDH) mutation status and codeletion of chromosome 1p and 19q (1p/19q). However, the subtype-specific effects of additional genetic lesions on survival are largely unknown. Methods: Using Cox proportional hazards regression modeling, we investigated the subtype specific effects of genetic alterations and clinicopathological factors on survival in each LGG subtype, in a Japanese cohort of LGG cases fully genotyped for driver mutations and copy number variations associated with LGGs (n = 308). The results were validated using a dataset from 414 LGG cases available from The Cancer Genome Atlas (TCGA). Results: In Oligodendroglioma, IDH-mutant and 1p/19q codeleted, NOTCH1 mutations (P = 0.0041) and incomplete resection (P = 0.0019) were significantly associated with shorter survival. In Astrocytoma, IDH-mutant, PIK3R1 mutations (P = 0.0014) and altered retinoblastoma pathway genes (RB1, CDKN2A, and CDK4) (P = 0.013) were independent predictors of poor survival. In IDH-wildtype LGGs, co-occurrence of 7p gain, 10q loss, mutation in the TERT promoter (P = 0.024), and grade III histology (P < 0.0001) independently predicted poor survival. IDH-wildtype LGGs without any of these factors were diagnosed at a younger age (P = 0.042), and were less likely to have genetic lesions characteristic of glioblastoma, in comparison with other IDH-wildtype LGGs, suggesting that they likely represented biologically different subtypes. These results were largely confirmed in the cohort of TCGA. Conclusions: Subtype specific genetic lesions can be used to stratify patients within each LGG subtype. enabling better prognostication and management. PMID- 29016842 TI - Comparison of EMG activity and blood flow during graded exertion in the orbicularis oris muscle of adult subjects with and without lip incompetence: a cross-sectional survey. AB - Background/Objectives: The peri-oral muscles-including orbicularis oris-are critical in maintaining equilibrium in tooth position. Lip incompetence (LI) can thus be a factor in malocclusion. We therefore aimed to validate a technique to evaluate not only muscle activity via electromyography (EMG) but also muscle endurance and fatigue via blood flow (BF) for LI. Subjects/Methods: Subjects were classified into increased muscle tension/lip incompetent (experimental) and normal muscle tension/lip competent (control) groups. Each subject then exerted force on a custom-made traction plate connected to a tension gauge. Using laser speckle imaging and electromyographic measurements, we characterized muscle activity and corresponding BF rates in these subjects in various states of resting, loading, and recovery. Results: Results showed a significant difference between the experimental and control groups, notably in the rate of change in BF to the inferior orbicularis oris muscle under conditions of increasing load (graded exertion). Furthermore, the data suggested that the muscles in the control group undergo a more prolonged (and therefore presumably more complete) recovery than muscles in the experimental group. These factors of reduced BF and short recovery may combine to accelerate muscle fatigue and produce LI. Limitations: The sample used here was controlled for malocclusion (including open bite) to eliminate this type of confounding effect. Conclusions/Implications: From these findings, we conclude that reduced BF and inadequate recovery in the orbicularis oris muscles may be more significant than EMG activity in the assessment of LI. PMID- 29016843 TI - Mesenchymal stem cells as natural biofactories for exosomes carrying miR-124a in the treatment of gliomas. AB - Background: MicroRNAs (miRs) are promising new therapeutics for glioblastoma. However, which miRs are most effective against glioblastomas and how these miRs should be delivered are major unanswered problems. Methods: To identify potent antiglioma miRs, we selected 8 miRs based on a literature search and screened them against a panel of glioma stem cell (GSC) lines, representing all of the glioblastoma subtypes defined by The Cancer Genome Atlas. To address delivery, we tested the hypothesis that ex vivo cultured bone marrow-derived mesenchymal stem cells (MSCs) can package miRs into exosomes and that these engineered exosomes can systemically deliver antiglioma miRs to glioblastomas. Results: Of the screened miRs, we identified miR-124a as the most effective antiglioma agent against GSCs. We then transduced MSCs with lentivirus vectors containing miR-124a and isolated vesicles from the medium. Electron microscopy, western blotting, and Nanosight proved that the isolated vesicles were exosomes. Quantitative PCR documented that these exosomes contained high levels of miR-124a, which was not present in control exosomes. In vitro treatment of GSCs with exosomes containing miR-124a (Exo-miR124) resulted in a significant reduction in viability and clonogenicity of GSCs compared with controls. In vivo treatment of mice harboring intracranial GSC267 with systemically delivered Exo-miR124 resulted in 50% of animals living long term. No evidence of tumor was present on histological analysis of the survivors. Mechanistic studies showed that miR-124a acts by silencing Forkhead box (FOX)A2, resulting in aberrant intracellular lipid accumulation. Conclusion: MSCs can be used as natural biofactories to produce Exo miR124, which is an effective antiglioma agent worthy of further clinical evaluation. PMID- 29016844 TI - PIK3CB/p110beta is a selective survival factor for glioblastoma. AB - Background: Glioblastoma (GBM) is difficult to treat. Phosphoinositide 3-kinase (PI3K) is an attractive therapeutic target for GBM; however, targeting this pathway to effectively treat GBM is not successful because the roles of PI3K isoforms remain to be defined. The aim of this study is to determine whether PIK3CB/p110beta, but not other PI3K isoforms, is a biomarker for GBM recurrence and important for cell survival. Methods: Gene expression and clinical relevance of PI3K genes in GBM patients were analyzed using online databases. Expression/activity of PI3K isoforms was determined using immunoblotting. PI3K genes were inhibited using short hairpin RNAs or isoform-selective inhibitors. Cell viability/growth was assessed by the MTS assay and trypan blue exclusion assay. Apoptosis was monitored using the caspase activity assay. Mouse GBM xenograft models were used to gauge drug efficacy. Results: PIK3CB/p110beta was the only PI3K catalytic isoform that significantly correlated with high incidence rate, risk, and poor survival of recurrent GBM. PIK3CA/p110alpha, PIK3CB/p110beta, and PIK3CD/p110delta were differentially expressed in GBM cell lines and primary tumor cells derived from patient specimens, whereas PIK3CG/p110gamma was barely detected. PIK3CB/p110beta protein levels presented a stronger association with the activities of PI3K signaling than other PI3K isoforms. Blocking p110beta deactivated PI3K signaling, whereas inhibition of other PI3K isoforms had no effect. Specific inhibitors of PIK3CB/p110beta, but not other PI3K isoforms, remarkably suppressed viability and growth of GBM cells and xenograft tumors in mice, with minimal cytotoxic effects on astrocytes. Conclusions: PIK3CB/p110beta is a biomarker for GBM recurrence and selectively important for GBM cell survival. PMID- 29016846 TI - Impact of Empathy in the Patient-Doctor Relationship on Chronic Pain Relief and Quality of Life: A Prospective Study in Spanish Pain Clinics. AB - Objective: To assess the impact of the empathy of physicians, perceived by patients with chronic pain, regarding pain relief and health-related quality of life (HR-QoL). Methods: A prospective noninterventional study was conducted in 2,898 patients with moderate to severe chronic pain who were referred to pain clinics. The same physician visited each patient at baseline and after one and three months. Study questionnaires included the Jefferson Scale of Patient Perceptions of Physician Empathy (JSPPPE), the Life Orientation Test-Revised (LOT R), the Pain Coping Questionnaire (CAD-R), the Brief Pain Inventory Short Form (BPI-SF), and the EuroQol-5D (EQ-5D). Regression analyses were used to evaluate the independent contribution of the changes in perceived empathy over pain intensity and improvement of HR-QoL. Results: BPI-SF scores for pain intensity, rated as worst, least, average, and current pain, decreased significantly (P < 0.001) from baseline to month 3, with reductions of 33.7%, 42.5%, 40.0%, and 46.9%, respectively. Pain intensity decreased from 6.3 +/- 1.5 at baseline to 4.7 +/- 1.8 at one month and 3.8 +/- 1.9 at three months (P < 0.050). Significant (P < 0.001) improvements in the EQ-5D tariff (+37.1%) and EQ-5D VAS (+26.7%) were also recorded. In the linear regression analysis, JSPPPE and LOT-R, but not CAD R, were significantly associated with pain relief and HR-QoL. Conclusions: Physicians' empathy and patients' dispositional optimism have a role in determining positive outcomes in patients with chronic pain. Physicians' empathy may therefore be a suitable, yet relatively unexplored, target for intervention. PMID- 29016845 TI - Pediatric low-grade gliomas: next biologically driven steps. AB - Despite the fact that they are not typically life-threatening, low-grade gliomas (LGGs) remain a significant clinical challenge in pediatric neuro-oncology due to comorbidities associated with these tumors and/or their treatments, and their propensity to multiply recurs. LGGs, in total the most common brain tumors arising in childhood, can often become a chronic problem requiring decades of management. The Second International Consensus Conference on Pediatric Low-Grade Gliomas held in Padua, Italy in 2016 was convened in an attempt to advance the pace of translating biological discoveries on LGGs into meaningful clinical benefit. Topics discussed included: the implications of our growing biological understanding of the genomics underlying these tumors; the assessment of the model systems available; the implications of the molecular and histopathologic differences between adult and pediatric diffuse gliomas; and steps needed to expedite targeted therapy into late-stage clinical trials for newly diagnosed cases. Methods for the diagnostic assessment of alterations in the Ras/mitogen activated protein kinase pathway, typical for these tumors, were also considered. While the overall tone was positive, with a consensus that progress is being and will continue to be made, the scale of the challenge presented by this complex group of tumors was also acknowledged. The conclusions and recommendations of the meeting panel are provided here as an outline of current thinking and a basis for further discussion. PMID- 29016849 TI - Differential protective effects of connective tissue growth factor against Abeta neurotoxicity on neurons and glia. AB - Impaired clearance of amyloid-beta peptide (Abeta) leads to abnormal extracellular accumulation of this neurotoxic protein that drives neurodegeneration in sporadic Alzheimer's disease (AD). Connective tissue growth factor (CTGF/CCN2) expression is elevated in plaque-surrounding astrocytes in AD patients. However, the role of CTGF in AD pathogenesis remains unclear. Here we characterized the neuroprotective activity of CTGF. We found that CTGF facilitated Abeta uptake and subsequent degradation within primary glia and neuroblastoma cells. CTGF enhanced extracellular Abeta degradation via membrane bound matrix metalloproteinase-14 (MMP14) in glia and extracellular MMP13 in neurons. In the brain of a Drosophila AD model, glial-expression of CTGF reduced Abeta deposits, improved locomotor function, and rescued memory deficits. Neuroprotective potential of CTGF against Abeta42-induced photoreceptor degeneration was disrupted through silencing MMPs. Therefore, CTGF may represent a node for potential AD therapeutics as it intervenes in glia-neuron communication via specific MMPs to alleviate Abeta neurotoxicity in the central nervous system. PMID- 29016847 TI - A point mutation in the ion conduction pore of AMPA receptor GRIA3 causes dramatically perturbed sleep patterns as well as intellectual disability. AB - The discovery of genetic variants influencing sleep patterns can shed light on the physiological processes underlying sleep. As part of a large clinical sequencing project, WGS500, we sequenced a family in which the two male children had severe developmental delay and a dramatically disturbed sleep-wake cycle, with very long wake and sleep durations, reaching up to 106-h awake and 48-h asleep. The most likely causal variant identified was a novel missense variant in the X-linked GRIA3 gene, which has been implicated in intellectual disability. GRIA3 encodes GluA3, a subunit of AMPA-type ionotropic glutamate receptors (AMPARs). The mutation (A653T) falls within the highly conserved transmembrane domain of the ion channel gate, immediately adjacent to the analogous residue in the Grid2 (glutamate receptor) gene, which is mutated in the mouse neurobehavioral mutant, Lurcher. In vitro, the GRIA3(A653T) mutation stabilizes the channel in a closed conformation, in contrast to Lurcher. We introduced the orthologous mutation into a mouse strain by CRISPR-Cas9 mutagenesis and found that hemizygous mutants displayed significant differences in the structure of their activity and sleep compared to wild-type littermates. Typically, mice are polyphasic, exhibiting multiple sleep bouts of sleep several minutes long within a 24-h period. The Gria3A653T mouse showed significantly fewer brief bouts of activity and sleep than the wild-types. Furthermore, Gria3A653T mice showed enhanced period lengthening under constant light compared to wild-type mice, suggesting an increased sensitivity to light. Our results suggest a role for GluA3 channel activity in the regulation of sleep behavior in both mice and humans. PMID- 29016850 TI - Mice lacking cyclin-dependent kinase-like 5 manifest autistic and ADHD-like behaviors. AB - Neurodevelopmental disorders frequently share common clinical features and appear high rate of comorbidity, such as those present in patients with attention deficit hyperactivity disorder (ADHD) and autism spectrum disorders (ASD). While characterizing behavioral phenotypes in the mouse model of cyclin-dependent kinase-like 5 (CDKL5) disorder, a neurodevelopmental disorder caused by mutations in the X-linked gene encoding CDKL5, we found that these mice manifested behavioral phenotypes mimicking multiple key features of ASD, such as impaired social interaction and communication, as well as increased stereotypic digging behaviors. These mice also displayed hyper-locomotion, increased aggressiveness and impulsivity, plus deficits in motor and associative learning, resembling primary symptoms of ADHD. Through brain region-specific biochemical analysis, we uncovered that loss of CDKL5 disrupts dopamine synthesis and the expression of social communication-related key genes, such as forkhead-box P2 and mu-opioid receptor, in the corticostriatal circuit. Together, our findings support that CDKL5 plays a role in the comorbid features of autism and ADHD, and mice lacking CDKL5 may serve as an animal model to study the molecular and circuit mechanisms underlying autism-ADHD comorbidity. PMID- 29016848 TI - Mdm2 mediates FMRP- and Gp1 mGluR-dependent protein translation and neural network activity. AB - Activating Group 1 (Gp1) metabotropic glutamate receptors (mGluRs), including mGluR1 and mGluR5, elicits translation-dependent neural plasticity mechanisms that are crucial to animal behavior and circuit development. Dysregulated Gp1 mGluR signaling has been observed in numerous neurological and psychiatric disorders. However, the molecular pathways underlying Gp1 mGluR-dependent plasticity mechanisms are complex and have been elusive. In this study, we identified a novel mechanism through which Gp1 mGluR mediates protein translation and neural plasticity. Using a multi-electrode array (MEA) recording system, we showed that activating Gp1 mGluR elevates neural network activity, as demonstrated by increased spontaneous spike frequency and burst activity. Importantly, we validated that elevating neural network activity requires protein translation and is dependent on fragile X mental retardation protein (FMRP), the protein that is deficient in the most common inherited form of mental retardation and autism, fragile X syndrome (FXS). In an effort to determine the mechanism by which FMRP mediates protein translation and neural network activity, we demonstrated that a ubiquitin E3 ligase, murine double minute-2 (Mdm2), is required for Gp1 mGluR-induced translation and neural network activity. Our data showed that Mdm2 acts as a translation suppressor, and FMRP is required for its ubiquitination and down-regulation upon Gp1 mGluR activation. These data revealed a novel mechanism by which Gp1 mGluR and FMRP mediate protein translation and neural network activity, potentially through de-repressing Mdm2. Our results also introduce an alternative way for understanding altered protein translation and brain circuit excitability associated with Gp1 mGluR in neurological diseases such as FXS. PMID- 29016851 TI - Mutations causing acrodysostosis-2 facilitate activation of phosphodiesterase 4D3. AB - Type 2 acrodysostosis (ACRDYS2), a rare developmental skeletal dysplasia characterized by short stature, severe brachydactyly and facial dysostosis, is caused by mutations in the phosphodiesterase (PDE) 4D (PDE4D) gene. Several arguments suggest that the mutations should result in inappropriately increased PDE4D activity, however, no direct evidence supporting this hypothesis has been presented, and the functional consequences of the mutations remain unclear. We evaluated the impact of four different PDE4D mutations causing ACRDYS2 located in different functional domains on the activity of PDE4D3 expressed in Chinese hamster ovary cells. Three independent approaches were used: the direct measurement of PDE activity in cell lysates, the evaluation of intracellular cAMP levels using an EPAC-based (exchange factor directly activated by cAMP) bioluminescence resonance energy transfer sensor , and the assessment of PDE4D3 activation based on electrophoretic mobility. Our findings indicate that PDE4D3s carrying the ACRDYS2 mutations are more easily activated by protein kinase A induced phosphorylation than WT PDE4D3. This occurs over a wide range of intracellular cAMP concentrations, including basal conditions, and result in increased hydrolytic activity. Our results provide new information concerning the mechanism whereby the mutations identified in the ACRDYS2 dysregulate PDE4D activity, and give insights into rare diseases involving the cAMP signaling pathway. These findings may offer new perspectives into the selection of specific PDE inhibitors and possible therapeutic intervention for these patients. PMID- 29016853 TI - Metalloprotease-mediated cleavage of PlexinD1 and its sequestration to actin rods in the motoneuron disease spinal muscular atrophy (SMA). AB - Cytoskeletal rearrangement during axon growth is mediated by guidance receptors and their ligands which act either as repellent, attractant or both. Regulation of the actin cytoskeleton is disturbed in Spinal Muscular Atrophy (SMA), a devastating neurodegenerative disease affecting mainly motoneurons, but receptor ligand interactions leading to the dysregulation causing SMA are poorly understood. In this study, we analysed the role of the guidance receptor PlexinD1 in SMA pathogenesis. We showed that PlexinD1 is cleaved by metalloproteases in SMA and that this cleavage switches its function from an attractant to repellent. Moreover, we found that the PlexinD1 cleavage product binds to actin rods, pathological aggregate-like structures which had so far been described for age related neurodegenerative diseases. Our data suggest a novel disease mechanism for SMA involving formation of actin rods as a molecular sink for a cleaved PlexinD1 fragment leading to dysregulation of receptor signaling. PMID- 29016852 TI - Potassium channel dysfunction underlies Purkinje neuron spiking abnormalities in spinocerebellar ataxia type 2. AB - Alterations in Purkinje neuron firing often accompany ataxia, but the molecular basis for these changes is poorly understood. In a mouse model of spinocerebellar ataxia type 2 (SCA2), a progressive reduction in Purkinje neuron firing frequency accompanies cell atrophy. We investigated the basis for altered Purkinje neuron firing in SCA2. A reduction in the expression of large-conductance calcium activated potassium (BK) channels and Kv3.3 voltage-gated potassium channels accompanies the inability of Purkinje neurons early in disease to maintain repetitive spiking. In association with prominent Purkinje neuron atrophy, repetitive spiking is restored, although at a greatly reduced firing frequency. In spite of a continued impairment in spike repolarization and a persistently reduced BK channel mediated afterhyperpolarization (AHP), repetitive spiking is maintained, through the increased activity of barium-sensitive potassium channels, most consistent with inwardly rectifying potassium (Kir) channels. Increased activity of Kir channels results in the generation of a novel AHP not seen in wild-type Purkinje neurons that also accounts for the reduced firing frequency late in disease. Homeostatic changes in Purkinje neuron morphology that help to preserve repetitive spiking can also therefore have deleterious consequences for spike frequency. These results suggest that the basis for spiking abnormalities in SCA2 differ depending on disease stage, and interventions targeted towards correcting potassium channel dysfunction in ataxia need to be tailored to the specific stage in the degenerative process. PMID- 29016854 TI - Absence of RNase H2 triggers generation of immunogenic micronuclei removed by autophagy. AB - Hypomorphic mutations in the DNA repair enzyme RNase H2 cause the neuroinflammatory autoimmune disorder Aicardi-Goutieres syndrome (AGS). Endogenous nucleic acids are believed to accumulate in patient cells and instigate pathogenic type I interferon expression. However, the underlying nucleic acid species amassing in the absence of RNase H2 has not been established yet. Here, we report that murine RNase H2 knockout cells accumulated cytosolic DNA aggregates virtually indistinguishable from micronuclei. RNase H2-dependent micronuclei were surrounded by nuclear lamina and most of them contained damaged DNA. Importantly, they induced expression of interferon-stimulated genes (ISGs) and co-localized with the nucleic acid sensor cGAS. Moreover, micronuclei associated with RNase H2 deficiency were cleared by autophagy. Consequently, induction of autophagy by pharmacological mTOR inhibition resulted in a significant reduction of cytosolic DNA and the accompanied interferon signature. Autophagy induction might therefore represent a viable therapeutic option for RNase H2-dependent disease. Endogenous retroelements have previously been proposed as a source of self-nucleic acids triggering inappropriate activation of the immune system in AGS. We used human RNase H2-knockout cells generated by CRISPR/Cas9 to investigate the impact of RNase H2 on retroelement propagation. Surprisingly, replication of LINE-1 and Alu elements was blunted in cells lacking RNase H2, establishing RNase H2 as essential host factor for the mobilisation of endogenous retrotransposons. PMID- 29016855 TI - Enhanced tau pathology via RanBP9 and Hsp90/Hsc70 chaperone complexes. AB - Accumulation of amyloid beta (Abeta) and tau represent the two major pathological hallmarks of Alzheimer's disease (AD). Despite the critical importance of Abeta accumulation as an early event in AD pathogenesis, multiple lines of evidence indicate that tau is required to mediate Abeta-induced neurotoxic signals in neurons. We have previously shown that the scaffolding protein Ran-binding protein 9 (RanBP9), which is highly elevated in brains of AD and AD mouse models, both enhances Abeta production and mediates Abeta-induced neurotoxicity. However, it is unknown whether and how RanBP9 transmits Abeta-induced neurotoxic signals to tau. Here we show for the first time that overexpression or knockdown of RanBP9 directly enhances and reduces tau levels, respectively, in vitro and in vivo. Such changes in tau levels are associated with the ability of RanBP9 to physically interact with tau and heat shock protein 90/heat shock cognate 70 (Hsp90/Hsc70) complexes. Meanwhile, both RanBP9 and tau levels are simultaneously reduced by Hsp90 or Hsc70 inhibitors, whereas overexpression or knockdown of RanBP9 significantly diminishes the anti-tau potency of Hsp90/Hsc70 inhibitors as well as Hsc70 variants (WT & E175S). Further, RanBP9 increases the capacity for Hsp90 and Hsc70 complexes to bind ATP and enhances their ATPase activities in vitro. These observations in vitro and cell lines are recapitulated in primary neurons and in vivo, as genetic reduction in RanBP9 not only ameliorates tauopathy in Tau-P301S mice but also rescues the deficits in synaptic integrity and plasticity. PMID- 29016857 TI - Biallelic mutation of UNC50, encoding a protein involved in AChR trafficking, is responsible for arthrogryposis. AB - Arthrogryposis multiplex congenita (AMC) is a developmental condition characterized by multiple joint contractures resulting from reduced or absent fetal movements. Homozygosity mapping of disease loci combined with whole exome sequencing in a consanguineous family presenting with lethal AMC allowed the identification of a homozygous frameshift deletion in UNC50 gene (c.750_751del:p.Cys251Phefs*4) in the index case. To assess the effect of the mutation, an equivalent mutation in the Caenorhabditis elegans orthologous gene was created using CRISPR/Cas9. We demonstrated that unc-50(kr331) modification caused the loss of acetylcholine receptor (AChR) expression in C. elegans muscle. unc-50(kr331) animals were as resistant to the cholinergic agonist levamisole as unc-50 null mutants suggesting that AChRs were no longer expressed in this animal model. This was confirmed by using a knock-in strain in which a red fluorescent protein was inserted into the AChR locus: no signal was detected in unc-50(kr331) background, suggesting that UNC-50, a protein known to be involved in AChR trafficking, was no longer functional. These data indicate that biallelic mutation in the UNC50 gene underlies AMC through a probable loss of AChR expression at the neuromuscular junction which is essential for the cholinergic transmission during human muscle development. PMID- 29016856 TI - Neuronal overexpression of Ube3a isoform 2 causes behavioral impairments and neuroanatomical pathology relevant to 15q11.2-q13.3 duplication syndrome. AB - Maternally derived copy number gains of human chromosome 15q11.2-q13.3 (Dup15q syndrome or Dup15q) cause intellectual disability, epilepsy, developmental delay, hypotonia, speech impairments, and minor dysmorphic features. Dup15q syndrome is one of the most common and penetrant chromosomal abnormalities observed in individuals with autism spectrum disorder (ASD). Although ~40 genes are located in the 15q11.2-q13.3 region, overexpression of the ubiquitin-protein E3A ligase (UBE3A) gene is thought to be the predominant molecular cause of the phenotypes observed in Dup15q syndrome. The UBE3A gene demonstrates maternal-specific expression in neurons and loss of maternal UBE3A causes Angelman syndrome, a neurodevelopmental disorder with some overlapping neurological features to Dup15q. To directly test the hypothesis that overexpression of UBE3A is an important underlying molecular cause of neurodevelopmental dysfunction, we developed and characterized a mouse overexpressing Ube3a isoform 2 in excitatory neurons. Ube3a isoform 2 is conserved between mouse and human and known to play key roles in neuronal function. Transgenic mice overexpressing Ube3a isoform 2 in excitatory forebrain neurons exhibited increased anxiety-like behaviors, learning impairments, and reduced seizure thresholds. However, these transgenic mice displayed normal social approach, social interactions, and repetitive motor stereotypies that are relevant to ASD. Reduced forebrain, hippocampus, striatum, amygdala, and cortical volume were also observed. Altogether, these findings show neuronal overexpression of Ube3a isoform 2 causes phenotypes translatable to neurodevelopmental disorders. PMID- 29016859 TI - A functional variant in MIR4300HG, the host gene of microRNA MIR4300 is associated with progression of adolescent idiopathic scoliosis. AB - Adolescent idiopathic scoliosis (AIS) is a common spinal deformity affecting millions of children. Since treatment and prognosis of AIS depend on curve progression, identifying factors related to AIS curve progression is important in its management. Although several genetic loci for AIS occurrence are reported, no locus for curve progression has been identified. To identify genes associated with AIS progression, we conducted a genome-wide association study followed by a replication study using a total of 2,543 AIS subjects who were evaluated for the curve progression. We identified a significantly associated locus on chromosome 11q14.1 (P = 1.98 * 10-9, odds ratio = 1.56). In silico and in vitro analyses identified a functional variant, rs35333564 in MIR4300HG, the host gene of a microRNA, MIR4300. The genomic region containing rs35333564 had enhancer activity, which was decreased in its risk allele. Our data suggest that decrease of MIR4300 is related to AIS progression. PMID- 29016860 TI - Primary angle closure glaucoma (PACG) susceptibility gene PLEKHA7 encodes a novel Rac1/Cdc42 GAP that modulates cell migration and blood-aqueous barrier function. AB - PLEKHA7, a gene recently associated with primary angle closure glaucoma (PACG), encodes an apical junctional protein expressed in components of the blood aqueous barrier (BAB). We found that PLEKHA7 is down-regulated in lens epithelial cells and in iris tissue of PACG patients. PLEKHA7 expression also correlated with the C risk allele of the sentinel SNP rs11024102 with the risk allele carrier groups having significantly reduced PLEKHA7 levels compared to non-risk allele carriers. Silencing of PLEKHA7 in human immortalized non-pigmented ciliary epithelium (h iNPCE) and primary trabecular meshwork cells, which are intimately linked to BAB and aqueous humor outflow respectively, affected actin cytoskeleton organization. PLEKHA7 specifically interacts with GTP-bound Rac1 and Cdc42, but not RhoA, and the activation status of the two small GTPases is linked to PLEKHA7 expression levels. PLEKHA7 stimulates Rac1 and Cdc42 GTP hydrolysis, without affecting nucleotide exchange, identifying PLEKHA7 as a novel Rac1/Cdc42 GAP. Consistent with the regulatory role of Rac1 and Cdc42 in maintaining the tight junction permeability, silencing of PLEKHA7 compromises the paracellular barrier between h iNPCE cells. Thus, downregulation of PLEKHA7 in PACG may affect BAB integrity and aqueous humor outflow via its Rac1/Cdc42 GAP activity, thereby contributing to disease etiology. PMID- 29016862 TI - Ube3a deficiency inhibits amyloid plaque formation in APPswe/PS1deltaE9 mouse model of Alzheimer's disease. AB - Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive decline in memory and cognitive function. Pathological hallmark of AD includes aberrant aggregation of amyloid beta (Abeta) peptide, which is produced upon sequential cleavage of amyloid precursor protein (APP) by beta- and gamma secretases. On the contrary, alpha-secretase cleaves APP within the Abeta sequence and thereby prevents Abeta generation. Here, we investigated the role of ubiquitin ligase Ube3a (involved in synaptic function and plasticity) in the pathogenesis of AD using APPswe/PS1deltaE9 transgenic mouse model and first noticed that soluble pool of Ube3a was age-dependently decreased in AD mouse in comparison with wild type controls. To further explore the role of Ube3a in AD patho-mechanism, we generated brain Ube3a-deficient AD mice that exhibited accelerated cognitive and motor deficits compared with AD mice. Interestingly, these Ube3a-deficient AD mice were excessively obese from their age of 12 months and having shorter lifespan. Biochemical analysis revealed that the Ube3a deficient AD mice had significantly reduced level of Abeta generation and amyloid plaque formation in their brain compared with age-matched AD mice and this effect could be due to the increased activity of alpha-secretase, ADAM10 (a disintegrin and metalloproteinase-10) that shift the proteolysis of APP towards non amyloidogenic pathway. These findings suggest that aberrant function of Ube3a could influence the progression of AD and restoring normal level of Ube3a might be beneficial for AD. PMID- 29016864 TI - Loss of host-derived osteopontin creates a glioblastoma-promoting microenvironment. AB - Background: Microglia and periphery-derived monocytes infiltrate human and mouse glioblastoma and their density is positively correlated with malignancy. Using microarray and RNA sequencing, we have previously shown that glioblastoma associated microglia/monocytes (GAMs) express osteopontin/SPP1. Methods: We used quantitative reverse transcriptase PCR, immunofluorescence stainings, western blot, and flow cytometry to identify the various sources of osteopontin (OPN) expression in human and mouse glioblastoma. We implanted wild type GL261 glioblastoma cells, which do not express significant levels of OPN, into wild type and OPN-/- mice to investigate the role of microenvironment-derived OPN on glioblastoma progression. Results: Our data indicate that GAMs are the predominant source of OPN in both human and mouse glioblastoma and express only the secreted form of OPN. Loss of microenvironment-derived OPN enhanced tumor progression. Staining by Ki67 and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling showed no difference in overall cell proliferation but a decreased apoptosis rate in tumors in OPN-/- mice. CD31 staining showed a significantly decreased number of microvessels in tumors in OPN /- mice, accompanied by reduced coverage of vessels with platelet derived growth factor receptor beta+ pericytes. Flow cytometry analysis revealed a significant increase of CD11b+/CD45low microglia but not of CD11b+/CD45high macrophages/monocytes in tumors in OPN-/- mice. Sorted CD11b+ cells from wild type and OPN-/- naive brains and tumors did not show a significant difference in the expression pattern of activation marker genes. Conclusion: Our results show that in tested human and mouse glioblastoma samples, OPN is predominantly expressed and secreted by GAMs and that, in contrast to OPN expression in the tumor cells per se, loss of stroma-derived OPN creates a glioblastoma-promoting microenvironment. PMID- 29016866 TI - Anesthetic Test Dose and Seizure Risk with Cervical Transforaminal Epidural Steroid Injection. PMID- 29016861 TI - DJ-1 is a redox sensitive adapter protein for high molecular weight complexes involved in regulation of catecholamine homeostasis. AB - DJ-1 is an oxidation sensitive protein encoded by the PARK7 gene. Mutations in PARK7 are a rare cause of familial recessive Parkinson's disease (PD), but growing evidence suggests involvement of DJ-1 in idiopathic PD. The key clinical features of PD, rigidity and bradykinesia, result from neurotransmitter imbalance, particularly the catecholamines dopamine (DA) and noradrenaline. We report in human brain and human SH-SY5Y neuroblastoma cell lines that DJ-1 predominantly forms high molecular weight (HMW) complexes that included RNA metabolism proteins hnRNPA1 and PABP1 and the glycolysis enzyme GAPDH. In cell culture models the oxidation status of DJ-1 determined the specific complex composition. RNA sequencing indicated that oxidative changes to DJ-1 were concomitant with changes in mRNA transcripts mainly involved in catecholamine metabolism. Importantly, loss of DJ-1 function upon knock down (KD) or expression of the PD associated form L166P resulted in the absence of HMW DJ-1 complexes. In the KD model, the absence of DJ-1 complexes was accompanied by impairment in catecholamine homeostasis, with significant increases in intracellular DA and noraderenaline levels. These changes in catecholamines could be rescued by re expression of DJ-1. This catecholamine imbalance may contribute to the particular vulnerability of dopaminergic and noradrenergic neurons to neurodegeneration in PARK7-related PD. Notably, oxidised DJ-1 was significantly decreased in idiopathic PD brain, suggesting altered complex function may also play a role in the more common sporadic form of the disease. PMID- 29016863 TI - A TUBB6 mutation is associated with autosomal dominant non-progressive congenital facial palsy, bilateral ptosis and velopharyngeal dysfunction. AB - Congenital cranial dysinnervation disorders (CCDDs) comprise a heterogeneous spectrum of diseases characterized by congenital, non-progressive impairment of eye, eyelid and/or facial movements including Mobius syndrome, Duane retraction syndrome, congenital ptosis, and congenital fibrosis of the extraocular muscles. Over the last 20 years, several CCDDs have been identified as neurodevelopmental disorders that are caused by mutations of genes involved in brain and cranial nerve development, e.g. KIF21A and TUBB3 that each plays a pivotal role for microtubule function. In a five-generation pedigree, we identified a heterozygous mutation of TUBB6, a gene encoding a class V tubulin which has not been linked to a human hereditary disease so far. The missense mutation (p.Phe394Ser) affects an amino acid residue highly conserved in evolution, and co-segregates with a phenotype characterized by congenital non-progressive bilateral facial palsy and congenital velopharyngeal dysfunction presenting with varying degrees of hypomimia, rhinophonia, impaired gag reflex and bilateral ptosis. Expression of the mutated protein in yeast led to an impaired viability compared to wildtype cells when exposed to the microtubule-poison benomyl. Our findings enlarge the spectrum of tubulinopathies and emphasize that mutations of TUBB6 should be considered in patients with congenital non-progressive facial palsy. Further studies are needed to verify whether this phenotype is indeed part of the CCDD spectrum. PMID- 29016867 TI - The Response of the Primary Motor Cortex to Neuromodulation is Altered in Chronic Low Back Pain: A Preliminary Study. AB - Objective: Neuromodulation is increasingly investigated for the treatment of low back pain (LBP). However, the neurophysiological effects of common neuromodulatory techniques (anodal transcranial direct current stimulation [tDCS] and peripheral electrical stimulation [PES]) have not been investigated in people with chronic LBP. Here we aimed to compare the effect of three neuromodulatory protocols (anodal tDCS, high intensity PES, and a priming protocol of combined tDCS/PES) on primary motor cortex (M1) excitability in people with and without chronic LBP. Design: Cross-sectional. Setting: University laboratory. Participants: Ten individuals with chronic LBP and 10 pain-free controls. Methods: Participants received four interventions in random order across separate sessions: 1) anodal tDCS to M1 + PES to the back muscles; 2) tDCS + sham PES; 3) sham tDCS + PES; or 4) sham tDCS + sham PES. Motor cortical excitability (map volume, discrete map peaks, and cortical silent period [CSP]) was measured before and after each intervention. Results: Anodal tDCS increased M1 excitability (increased map volume and reduced CSP) in controls but had no effect in the LBP group. PES reduced M1 excitability in both groups. The combined tDCS + PES treatment increased M1 excitability in the LBP group but had no effect in controls. Conclusions: The neurophysiological response to common neuromodulatory treatments differs between people with and without LBP. This has relevance for the design and tailoring of neuromodulation in pain. Further, if the goal of treatment is to increase M1 excitability, a priming protocol (e.g., combined tDCS + PES) may be more effective than tDCS alone. PMID- 29016868 TI - Efficacy and Safety of Lubiprostone in Patients with Opioid-Induced Constipation: Phase 3 Study Results and Pooled Analysis of the Effect of Concomitant Methadone Use on Clinical Outcomes. AB - Objective: The efficacy and safety of oral lubiprostone for relieving symptoms of opioid-induced constipation (OIC) in patients with chronic noncancer pain were evaluated in a randomized, double-blind, placebo-controlled study. These data were also pooled with those from two similar phase 3 studies to explore the effects of methadone on treatment response. Methods: In the primary study, adults with OIC (fewer than three spontaneous bowel movements [SBMs] per week) were randomized to receive lubiprostone 24 mcg or placebo twice daily for 12 weeks. The primary end point was a change from baseline in the frequency of SBMs at week 8 in patients without a prior dose reduction. For the pooled analysis, the efficacy of lubiprostone was compared with placebo in patients receiving methadone or nonmethadone opioids. Responders were defined as patients with nine or more weeks of nonmissing SBM data who had one or more additional SBMs per week from baseline for each week that data were available and three or more SBMs per week for nine or more weeks. Results: In the primary study, the change from baseline at week 8 in SBM frequency was similar in the lubiprostone and placebo groups (P = 0.842). In the pooled analysis, the response rate was significantly higher with lubiprostone treatment vs placebo for patients receiving nonmethadone opioids (P = 0.002) but was similar between lubiprostone treatment and placebo in patients receiving methadone (P = 0.692). The safety profile of lubiprostone was unaffected by methadone use. Conclusions: The phase 3 study did not meet its primary efficacy end point. However, analysis of pooled data from all phase 3 studies in the OIC clinical development program, stratified by methadone opioid usage, confirmed that lubiprostone is effective for treatment of OIC in patients taking nonmethadone opioids; no safety concerns were identified based on the type of opioid used. PMID- 29016865 TI - Inability of positive phase II clinical trials of investigational treatments to subsequently predict positive phase III clinical trials in glioblastoma. AB - Background: Glioblastoma is the most common primary malignant brain tumor in adults, but effective therapies are lacking. With the scarcity of positive phase III trials, which are increasing in cost, we examined the ability of positive phase II trials to predict statistically significant improvement in clinical outcomes of phase III trials. Methods: A PubMed search was conducted to identify phase III clinical trials performed in the past 25 years for patients with newly diagnosed or recurrent glioblastoma. Trials were excluded if they did not examine an investigational chemotherapy or agent, if they were stopped early owing to toxicity, if they lacked prior phase II studies, or if a prior phase II study was negative. Results: Seven phase III clinical trials in newly diagnosed glioblastoma and 4 phase III clinical trials in recurrent glioblastoma met the inclusion criteria. Only 1 (9%) phase III study documented an improvement in overall survival and changed the standard of care. Conclusion: The high failure rate of phase III trials demonstrates the urgent need to increase the reliability of phase II trials of treatments for glioblastoma. Strategies such as the use of adaptive trial designs, Bayesian statistics, biomarkers, volumetric imaging, and mathematical modeling warrant testing. Additionally, it is critical to increase our expectations of phase II trials so that positive findings increase the probability that a phase III trial will be successful. PMID- 29016858 TI - Maternal BMI at the start of pregnancy and offspring epigenome-wide DNA methylation: findings from the pregnancy and childhood epigenetics (PACE) consortium. AB - Pre-pregnancy maternal obesity is associated with adverse offspring outcomes at birth and later in life. Individual studies have shown that epigenetic modifications such as DNA methylation could contribute. Within the Pregnancy and Childhood Epigenetics (PACE) Consortium, we meta-analysed the association between pre-pregnancy maternal BMI and methylation at over 450,000 sites in newborn blood DNA, across 19 cohorts (9,340 mother-newborn pairs). We attempted to infer causality by comparing the effects of maternal versus paternal BMI and incorporating genetic variation. In four additional cohorts (1,817 mother-child pairs), we meta-analysed the association between maternal BMI at the start of pregnancy and blood methylation in adolescents. In newborns, maternal BMI was associated with small (<0.2% per BMI unit (1 kg/m2), P < 1.06 * 10-7) methylation variation at 9,044 sites throughout the genome. Adjustment for estimated cell proportions greatly attenuated the number of significant CpGs to 104, including 86 sites common to the unadjusted model. At 72/86 sites, the direction of the association was the same in newborns and adolescents, suggesting persistence of signals. However, we found evidence for acausal intrauterine effect of maternal BMI on newborn methylation at just 8/86 sites. In conclusion, this well-powered analysis identified robust associations between maternal adiposity and variations in newborn blood DNA methylation, but these small effects may be better explained by genetic or lifestyle factors than a causal intrauterine mechanism. This highlights the need for large-scale collaborative approaches and the application of causal inference techniques in epigenetic epidemiology. PMID- 29016870 TI - Complications of pulmonary vein isolation in atrial fibrillation: predictors and comparison between four different ablation techniques: Results from the MIddelheim PVI-registry. AB - Aims: To define predictors of complications of pulmonary vein isolation (PVI) and compare safety between different ablation techniques. Methods and results: One thousand patients with atrial fibrillation (AF) (age 60 +/- 10, 72% males, CHA2DS2-VASc score 1 +/- 1) underwent PVI using various techniques: conventional PVI (CPVI) using mapping with irrigated point-per-point RF ablation (n = 576), multi-electrode RF ablation with the pulmonary vein ablation catheter (PVAC) (n = 272) or high density mesh ablator (HDMA) (n = 59) and cryoballoon (CB) ablation (n = 93). A complication was defined as any procedure-related adverse event resulting in permanent injury or death, requiring intervention or treatment, or prolonging/requiring hospitalization for >48 h. A total of 105 (10.5%) complications occurred in 101 (10.1%) patients. No periprocedural death occurred. Most frequent complications were vascular complications (4%) and pericarditis (3.1%). Seven patients experienced permanent deficit due to PV stenosis (n = 3, 1 CPVI, 2 PVAC) (n = 3) and phrenic nerve palsy (PNP) (n = 4, 3 CPVI, 1 PVAC). Independent predictors of complications were female sex [odds ratio (OR) = 1.73; 95% confidence interval (CI) 1.08-2.79; P = 0.023], CHA2DS2-VASc score (OR = 1.24; 95% CI 1.01-1.52; P = 0.039), and ablation technique (P = 0.006) in multivariable-adjusted analysis. Among the different techniques, CB (P = 0.047) and PVAC ablation (P = 0.003) had lowest overall complication rates. Complication profile (type/severity) differed between techniques (association between CB and PNP, CPVI and pericardial injury, PVAC and transient ischaemic attack/PV stenosis). Conclusion: Overall complication rate of PVI with various techniques is 10.5%. Permanent deficit occurred only after PVAC and CPVI in 0.7% of patients. Female sex and a higher CHA2DS2-VASc score increase, while PVAC and CB PVI decrease, overall risk. Differences in overall safety and individual complication profile make selection of the ablation technique in relation to clinical risk profile possible. PMID- 29016869 TI - Clinical characteristics associated with postoperative seizure control in adult low-grade gliomas: a systematic review and meta-analysis. AB - Background: Epilepsy is the most common symptom in patients with supratentorial low-grade gliomas (LGGs), which adversely affects the patient's quality of life. Poor seizure control with anti-epileptic therapy is an indication for surgery in these patients. Recent studies have sought to identify predictors of postoperative seizure control after surgical resection of LGG; gross total resection was shown to be a significant predictor in this respect. However, the prognostic value of other factors is not clear. Methods: We performed a systematic review and meta-analysis of 23 studies with a combined study population of 2641 patients with LGG, in order to identify potential factors associated with favorable postoperative seizure control. Data were extracted on age and sex of patient, tumor location, tumor histology, type of seizure, seizure duration, extent of resection, and imaging characteristics. Results: Patients >=45 years of age achieved better postoperative seizure control (risk ratio [RR], 0.89; 95% CI, 0.81-0.99). Focal seizures were associated with poor seizure control (RR, 1.32; 95% CI, 1.18-1.49) compared with generalized seizures (RR, 0.77; 95% CI, 0.68-0.87). Prolonged history of seizures (>=1 y) had a negative impact on postoperative seizure control (RR, 1.22; 95% CI, 1.10-1.34). Gross total resection was superior to subtotal resection with respect to postoperative seizure control (RR, 0.68; 95% CI, 0.63-0.73). Conclusions: This systematic review and meta-analysis identified predictors of postoperative seizure control in patients undergoing surgical resection of LGGs. Our results provide a reference for clinical treatment of LGG-related epilepsy. PMID- 29016871 TI - Cost-effectiveness of IDH testing in diffuse gliomas according to the 2016 WHO classification of tumors of the central nervous system recommendations. AB - Background: Due to the decreasing prevalence of IDH1 mutations in older patients, the 2016 World Health Organization (WHO) classification of brain tumors proposed not to perform sequencing for isocitrate dehydrogenase (IDH) in glioblastoma patients >=55 years old. We present a cost-effectiveness analysis to estimate the financial impact of these guidelines. Methods: From 2010 to 2015 we performed 1023 IDH tests in gliomas, amounting to ~$1.09 million in direct laboratory test costs. Samples were tested using R132H-specific immunohistochemistry, DNA sequencing validated for detection of noncanonical IDH1/2 mutations, or both methods. Results: In cases tested by DNA sequencing, the fraction of non-R132H mutations was 5.4%, which included only 2 high-grade gliomas in patients >=55 years (0.9%). When remodeling the optimal age cutoff in our patient population using 5-year age-binning, we found a 10-times higher pretest probability for the presence of a noncanonical IDH1 mutation in the setting of a negative IDH1-R132H immunohistochemistry result in patients <55 years. Applying the independently confirmed age cutoff of 55 years to glioblastoma patients (64%) would result in $403200 saved (43%). By not performing sequencing in patients >=55 years, the turn-around time to final integrated neuropathological diagnosis is reduced by 53%, allowing these patients to gain earlier benefits from personalized genomic medicine. Conclusion: The negligible prevalence of noncanonical IDH mutations in glioblastoma patients >=55 years argues against universal IDH sequencing in this population. We predict that adoption of this age-based sequencing cutoff recommendation from the 2016 WHO guidelines will result in significant cost and time savings throughout the global health care system. PMID- 29016841 TI - 2017 HRS/EHRA/ECAS/APHRS/SOLAECE expert consensus statement on catheter and surgical ablation of atrial fibrillation: Executive summary. PMID- 29016874 TI - The Number of Active But Not Latent Trigger Points Associated with Widespread Pressure Pain Hypersensitivity in Women with Episodic Migraines. AB - Objective: Previous studies suggest that trigger points (TrPs) contribute to migraine pain, but no data is available on the effects of TrPs on pressure pain sensitivity. Our objective was to investigate the association between the number of TrPs and widespread pressure hypersensitivity in women with episodic migraines. Methods: Ninety-five women with episodic migraines participated. Clinical features of migraines, that is, intensity, duration, frequency, and onset, were collected. Active and latent TrPs were bilaterally explored in the temporalis, masseter, suboccipital, sternocleidomastoid, upper trapezius, and splenius capitis musculature. Pressure pain thresholds (PPTs) were assessed over the trigeminal area (i.e., temporalis muscle), extratrigeminal (i.e., C5/C6 zygapophyseal joint), and a distant pain-free point (i.e., tibialis anterior muscle). Results: Active TrPs in the temporalis and upper trapezius muscles were the most prevalent. The number of active but not latent TrPs was significantly and negatively associated with PPTs: the higher the number of active TrPs, the lower the widespread PPT and the more generalized sensitization. Conclusions: This study found that the number of active but not latent TrPs in head and neck and shoulder muscles was associated with widespread pressure hypersensitivity in women with episodic migraines, suggesting a potential contribution of active TrPs as contributors for sensitization processes in migraines. PMID- 29016873 TI - Cgnl1, an endothelial junction complex protein, regulates GTPase mediated angiogenesis. AB - Aims: The formation of cell-cell and cell-extra cellular matrix (ECM) contacts by endothelial cells (ECs) is crucial for the stability and integrity of a vascular network. We previously identified cingulin-like 1 (Cgnl1) in a transcriptomic screen for new angiogenic modulators. Here we aim to study the function of the cell-cell junction associated protein Cgnl1 during vessel formation. Methods and results: Unlike family member cingulin, Cgnl1 expression is enriched in ECs during vascular growth. Cgnl1 is important for the formation of multicellular tubule structures, as shown in vitro using loss-of function assays in a 3D matrix co-culture system that uses primary human ECs and supporting mural cells. Further studies revealed that Cgnl1 regulates vascular growth by promoting Ve-cadherin association with the actin cytoskeleton, thereby stabilizing adherens junctions. Cgnl1 also regulates focal adhesion assembly in response to ECM contact, promoting vinculin and paxillin recruitment and focal adhesion kinase signalling. In vivo, we demonstrate in a postnatal retinal vascular development model in mice that Cgnl1 function is crucial for sustaining neovascular growth and stability. Conclusions: Our data demonstrate a functional relevance for Cgnl1 as a defining factor in new vessel formation both in vitro and in vivo. PMID- 29016872 TI - Affinity States of Striatal Dopamine D2 Receptors in Antipsychotic-Free Patients with Schizophrenia. AB - Background: Dopamine D2 receptors are reported to have high-affinity (D2High) and low-affinity (D2Low) states. Although an increased proportion of D2High has been demonstrated in animal models of schizophrenia, few clinical studies have investigated this alteration of D2High in schizophrenia in vivo. Methods: Eleven patients with schizophrenia, including 10 antipsychotic-naive and 1 antipsychotic free individuals, and 17 healthy controls were investigated. Psychopathology was assessed by Positive and Negative Syndrome Scale, and a 5-factor model was used. Two radioligands, [11C]raclopride and [11C]MNPA, were employed to quantify total dopamine D2 receptor and D2High, respectively, in the striatum by measuring their binding potentials. Binding potential values of [11C]raclopride and [11C]MNPA and the binding potential ratio of [11C]MNPA to [11C]raclopride in the striatal subregions were statistically compared between the 2 diagnostic groups using multivariate analysis of covariance controlling for age, gender, and smoking. Correlations between binding potential and Positive and Negative Syndrome Scale scores were also examined. Results: Multivariate analysis of covariance demonstrated a significant effect of diagnosis (schizophrenia and control) on the binding potential ratio (P=.018), although the effects of diagnosis on binding potential values obtained with either [11C]raclopride or [11C]MNPA were nonsignificant. Posthoc test showed that the binding potential ratio was significantly higher in the putamen of patients (P=.017). The Positive and Negative Syndrome Scale "depressed" factor in patients was positively correlated with binding potential values of both ligands in the caudate. Conclusions: The present study indicates the possibilities of: (1) a higher proportion of D2High in the putamen despite unaltered amounts of total dopamine D2 receptors; and (2) associations between depressive symptoms and amounts of caudate dopamine D2 receptors in patients with schizophrenia. PMID- 29016832 TI - Contemporary stroke prevention strategies in 11 096 European patients with atrial fibrillation: a report from the EURObservational Research Programme on Atrial Fibrillation (EORP-AF) Long-Term General Registry. AB - Aims: Contemporary data regarding atrial fibrillation (AF) management and current use of oral anticoagulants (OACs) for stroke prevention are needed. Methods and results: The EURObservational Research Programme on AF (EORP-AF) Long-Term General Registry analysed consecutive AF patients presenting to cardiologists in 250 centres from 27 European countries. From 2013 to 2016, 11 096 patients were enrolled (40.7% female; mean age 69 +/- 11 years). At discharge, OACs were used in 9379 patients (84.9%), with non-vitamin K antagonists (NOACs) accounting for 40.9% of OACs. Antiplatelet therapy alone was used by 20% of patients, while no antithrombotic treatment was prescribed in 6.4%. On multivariable analysis, age, hypertension, previous ischaemic stroke, symptomatic AF and planned cardioversion or ablation were independent predictors of OAC use, whereas lone AF, previous haemorrhagic events, chronic kidney disease and admission for acute coronary syndrome (ACS) or non-cardiovascular causes independently predicted OAC non-use. Regarding the OAC type, coronary artery disease, history of heart failure, or valvular heart disease, planned cardioversion and non-AF reasons for admission independently predicted the use of vitamin K antagonists (VKAs). Wide variability among the European regions was observed in the use of NOACs, independently from other clinical factors. Conclusion: The EORP-AF Long-Term General Registry provides a full picture of contemporary use of OAC in European AF patients. The overall rate of OACs use was generally high (84.9%), and a series of factors were associated with the prescription of OAC. A significant geographical heterogeneity in prescription of NOACs vs. VKAs was evident. PMID- 29016876 TI - Recruit Fitness as a Predictor of Police Academy Graduation. AB - Background: Suboptimal recruit fitness may be a risk factor for poor performance, injury, illness, and lost time during police academy training. Aims: To assess the probability of successful completion and graduation from a police academy as a function of recruits' baseline fitness levels at the time of academy entry. Methods: Retrospective study where all available records from recruit training courses held (2006-2012) at all Massachusetts municipal police academies were reviewed and analysed. Entry fitness levels were quantified from the following measures, as recorded at the start of each training class: body composition, push ups, sit-ups, sit-and-reach, and 1.5-mile run-time. The primary outcome of interest was the odds of not successfully graduating from an academy. We used generalized linear mixed models in order to fit logistic regression models with random intercepts for assessing the probability of not graduating, based on entry level fitness. The primary analyses were restricted to recruits with complete entry-level fitness data. Results: The fitness measures most strongly associated with academy failure were lesser number of push-ups completed (odds ratio [OR] = 5.2, 95% confidence interval [CI] 2.3-11.7, for 20 versus 41-60 push-ups) and slower run times (OR = 3.8, 95% CI 1.8-7.8, [1.5 mile run time of >=15'20"] versus [12'33" to 10'37"]). Conclusions: Baseline pushups and 1.5-mile run-time showed the best ability to predict successful academy graduation, especially when considered together. Future research should include prospective validation of entry-level fitness as a predictor of subsequent police academy success. PMID- 29016875 TI - Occupancy of Norepinephrine Transporter by Duloxetine in Human Brains Measured by Positron Emission Tomography with (S,S)-[18F]FMeNER-D2. AB - Background: The norepinephrine transporter in the brain has been targeted in the treatment of psychiatric disorders. Duloxetine is a serotonin and norepinephrine reuptake inhibitor that has been widely used for the treatment of depression. However, the relationship between dose and plasma concentration of duloxetine and norepinephrine transporter occupancy in the human brain has not been determined. In this study, we examined norepinephrine transporter occupancy by different doses of duloxetine. Methods: We calculated norepinephrine transporter occupancies from 2 positron emission tomography scans using (S,S)-[18F]FMeNER-D2 before and after a single oral dose of duloxetine (20 mg, n = 3; 40 mg, n = 3; 60 mg, n =2). Positron emission tomography scans were performed from 120 to 180 minutes after an i.v. bolus injection of (S,S)-[18F]FMeNER-D2. Venous blood samples were taken to measure the plasma concentration of duloxetine just before and after the second positron emission tomography scan. Results: Norepinephrine transporter occupancy by duloxetine was 29.7% at 20 mg, 30.5% at 40 mg, and 40.0% at 60 mg. The estimated dose of duloxetine inducing 50% norepinephrine transporter occupancy was 76.8 mg, and the estimated plasma drug concentration inducing 50% norepinephrine transporter occupancy was 58.0 ng/mL. Conclusions: Norepinephrine transporter occupancy by clinical doses of duloxetine was approximately 30% to 40% in human brain as estimated using positron emission tomography with (S,S)-[18F]FMeNER-D2. PMID- 29016877 TI - Work-related stress assessed by a text message single-item stress question. AB - Background: Given the prevalence of work stress-related ill-health in the Western world, it is important to find cost-effective, easy-to-use and valid measures which can be used both in research and in practice. Aims: To examine the validity and reliability of the single-item stress question (SISQ), distributed weekly by short message service (SMS) and used for measurement of work-related stress. Methods: The convergent validity was assessed through associations between the SISQ and subscales of the Job Demand-Control-Support model, the Effort-Reward Imbalance model and scales measuring depression, exhaustion and sleep. The predictive validity was assessed using SISQ data collected through SMS. The reliability was analysed by the test-retest procedure. Results: Correlations between the SISQ and all the subscales except for job strain and esteem reward were significant, ranging from -0.186 to 0.627. The SISQ could also predict sick leave, depression and exhaustion at 12-month follow-up. The analysis on reliability revealed a satisfactory stability with a weighted kappa between 0.804 and 0.868. Conclusions: The SISQ, administered through SMS, can be used for the screening of stress levels in a working population. PMID- 29016878 TI - Automatic remote monitoring utilizing daily transmissions: transmission reliability and implantable cardioverter defibrillator battery longevity in the TRUST trial. AB - Aims: Benefits of automatic remote home monitoring (HM) among implantable cardioverter defibrillator (ICD) patients may require high transmission frequency. However, transmission reliability and effects on battery longevity remain uncertain. We hypothesized that HM would have high transmission success permitting punctual guideline based follow-up, and improve battery longevity. This was tested in the prospective randomized TRUST trial. Methods and results: Implantable cardioverter defibrillator patients were randomized post-implant 2:1 to HM (n = 908) (transmit daily) or to Conventional in-person monitoring [conventional management (CM), n = 431 (HM disabled)]. In both groups, five evaluations were scheduled every 3 months for 15 months. Home Monitoring technology performance was assessed by transmissions received vs. total possible, and number of scheduled HM checks failing because of missed transmissions. Battery longevity was compared in HM vs. CM at 15 months, and again in HM 3 years post-implant using continuously transmitted data. Transmission success per patient was 91% (median follow-up of 434 days). Overall, daily HM transmissions were received in 315 795 of a potential 363 450 days (87%). Only 55/3759 (1.46%) of unsuccessful scheduled evaluations in HM were attributed to transmission loss. Shock frequency and pacing percentage were similar in HM vs. CM. Fifteen month battery longevity was 12% greater in HM (93.2 +/- 8.8% vs. 83.5 +/- 6.0% CM, P < 0.001). In extended follow-up of HM patients, estimated battery longevity was 50.9 +/- 9.1% (median 52%) at 36 months. Conclusion: Automatic remote HM demonstrated robust transmission reliability. Daily transmission load may be sustained without reducing battery longevity. Home Monitoring conserves battery longevity and tracks long term device performance. Clinical trial registration: ClinicalTrials.gov; NCT00336284. PMID- 29016882 TI - Intra-atrial re-entrant tachycardia in patients with congenital heart disease: factors associated with disease severity. AB - Aim: Intra-atrial re-entrant tachycardia (IART) is a common complication in patients with congenital heart disease (CHD) and is related to increased morbidity and mortality. Few reports have been published about factors associated to IART severity. The aim of this study is to analyse factors associated to severe clinical presentation of IART. Methods and Results: Observational study of all consecutive CHD patients who underwent a first IART ablation from January 2009 to December 2015 (94 patients, 39.4% female, and age: 36.55 +/- 14.9 years). Severe clinical presentation was defined as heart failure, syncope, shock, electromechanical dissociation (EMD), or aborted sudden death. The majority of patients had moderately or highly complex cardiac defect (90.4%). Types of IART included cavotricuspid isthmus(CTI) dependent in 51% (48), non-CTI-related in 22.3% (20), and both types in 27.7% (26). In 38 patients (40.4%), a severe event occurred and in 16 (17%), the symptoms included shock, syncope, sudden death, or EMD. In 21 (22.3%), severe symptoms were the first manifestation of IART. In multivariate analysis, transposition of the great arteries (TGA) with right systemic ventricle (OR 5.32, 95% C.I. 1.6-7.02, P = 0.0005) and severe dilation of the venous atrium (VsA) (OR 4.17; 95% CI 1.4-8.12, P = 0.0009) were factors independently associated with severity. Conclusion: In our series of 94 CHD patients with a high proportion of moderately to highly complex cardiac defects, severe consequences of IART were frequent. Transposition of the great arteries with systemic right ventricle and severe dilation of VsA were independently associated to severity. Early invasive procedures should be considered for these high-risk patients. PMID- 29016880 TI - Evaluation of the Relative Intranasal Abuse Potential of a Hydrocodone Extended Release Tablet Formulated with Abuse-Deterrence Technology in Nondependent, Recreational Opioid Users. AB - Objective: To assess the intranasal abuse potential of hydrocodone extended release (ER) tablets developed with CIMA Abuse-Deterrence Technology compared with hydrocodone powder and hydrocodone bitartrate ER capsules (Zohydro ER, original formulation [HYD-OF]). Design: Single-dose, randomized, double-blind, quadruple-dummy, active- and placebo-controlled, crossover study. Setting: One US site. Subjects: Healthy, adult, nondependent, recreational opioid users. Methods: Subjects able to tolerate intranasal hydrocodone and discriminate hydrocodone from placebo were eligible for study enrollment. Eligible participants randomly received intranasal hydrocodone ER, intranasal hydrocodone powder, intranasal HYD OF, intact oral hydrocodone ER, and placebo. Coprimary pharmacodynamic end points were a maximum effect on "at the moment" Drug Liking visual analog scale and Overall Drug Liking visual analog scale. Pharmacokinetics and safety were assessed. Results: Mean maximum effect for "at the moment" Drug Liking was significantly (P < 0.01) lower for intranasal hydrocodone ER (72.8) compared with hydrocodone powder (80.2) and HYD-OF (83.2). Similar results were observed for Overall Drug Liking maximum effect (68.5 vs 77.1 and 79.8, respectively; P < 0.01). Secondary end points, including balance of effects and positive, sedative, and other effects, were consistent with these results. Intranasal treatments showed significantly greater effects vs placebo, while intact oral hydrocodone ER was similar to placebo. For each treatment, plasma concentration-time profiles paralleled "at the moment" Drug Liking over time. Incidences of adverse events for intranasal treatments were 52% for hydrocodone ER, 53% for hydrocodone powder, and 61% for HYD-OF. Conclusions: The statistically significant differences between hydrocodone ER vs hydrocodone powder and HYD-OF for the primary drug liking end points indicate a lower intranasal abuse potential with hydrocodone ER in healthy, nondependent, recreational opioid users. PMID- 29016883 TI - Pharmacists' Role in Opioid Safety: A Focus Group Investigation. AB - Objective: The pharmacist's role and responsibilities in addressing the opioid epidemic have yet to be clearly defined, particularly from the patient's point of view. This qualitative study explores the pharmacist's role in promoting opioid safety from the perspective of pharmacists and patients. Design: Focus groups. Setting: Patient groups were held in person, and pharmacist groups were held online. Subjects: Oregon pharmacists (N = 19, Mage = 39.0 years, range = 26-57 years, 58% female) and patients (N = 18, Mage = 60.1 years, range = 30-77 years, 71% female) with current experience dispensing or receiving opioid medications. Methods: Pharmacists were asked about the challenges and opportunities for opioid safety monitoring and prescription dispensing. Patients were asked about their experiences accessing care, medications, and safety information. Focus group data were analyzed by a multidisciplinary team using an immersion-crystallization approach. Results: Pharmacists and patients agreed that pharmacists are responsible for medication safety. Pharmacists expressed discomfort filling potentially high-risk opioid prescriptions and noted barriers such as lack of clinical information and discomfort policing high-risk prescribing. Patients were concerned about pharmacists potentially overstepping their professional responsibilities by interfering with prescribers' clinical decisions. Conclusions: Feedback from both pharmacists and patient participants suggests that there is uncertainty in the degree to which pharmacists can and should confront the prescription opioid epidemic directly. Ambiguities in the pharmacist's role may be best clarified through structured training promoting enhanced between-party communication. PMID- 29016879 TI - Agonist OX40 immunotherapy improves survival in glioma-bearing mice and is complementary with vaccination with irradiated GM-CSF-expressing tumor cells. AB - Background: Glioma immunotherapy is an active area of clinical investigation. Glioma-associated immunosuppression remains an obstacle to efficacious immunotherapy, and combination approaches are likely necessary for durable success. OX40 is a member of the tumor necrosis factor receptor superfamily that is upregulated on activated lymphocytes, ligation of which results in enhanced activity and may be active against cancer. We sought to confirm the efficacy of agonist anti-OX40 immunotherapy against glioma and hypothesized that it is complementary with irradiated whole tumor cell vaccination. Methods: GL261 tumor cells were implanted into the right frontal lobes of syngeneic mice, which were then treated with controls, agonist anti-OX40 monoclonal antibody, vaccination with subcutaneous injection of irradiated granulocyte macrophage colony stimulating factor (GM-CSF)-expressing GL261 cells (GVAX), or vaccination + agonist anti-OX40 therapy. Animals were followed for survival. On day 18, splenocytes were harvested for enzyme-linked immunosorbent spot analyses and brains were harvested for immunohistochemistry and flow cytometry analyses of infiltrating lymphocytes. Results: Combination immunotherapy with GVAX and systemic agonist anti-OX40 monoclonal antibody improved survival by 14 days over controls (median survival 36 vs 22 days, P < 0.00005). Systemically, T helper cell type 1 (Th1) antitumor immunity was enhanced significantly by combination therapy. In the brain, combination immunotherapy increased the percentage of Th1 CD4+ T lymphocytes and reduced the fraction that were Th2. In the brain, vaccination improved the ratio of CD8+ to FoxP3+ T lymphocytes, while combination immunotherapy reversed intracranial T-lymphocyte exhaustion, reducing their coexpression of programmed cell death protein 1 (PD-1) and T-cell immunoglobulin and mucin-domain containing-3 (TIM-3) as well as PD-1 and lymphocyte-activation gene 3 (LAG-3). Conclusions: Anti-OX40 immunotherapy is active against intracranial glioma and synergizes with GVAX. Vaccination and anti-OX40 immunotherapy are mechanistically complementary, particularly in the glioma microenvironment. PMID- 29016884 TI - Cocaine contamination of banknotes: a review. AB - Background: The analysis of drug traces on banknotes with different validated techniques can provide important information about the types of substances that are used in a geographical region. The aim of our review was to investigate banknotes' contamination by cocaine, by its metabolite, but also by other drugs. Methods: A systematic literature search (English written literature) was conducted in MEDLINE, and Scopus, collecting studies from 1974 till 2017. The Key search terms included: 'banknote AND drug'; 'banknote AND cocaine'. Results: The literature search yielded 88 publications; 9 were included in our review. In six studies that showed banknotes' positivity to cocaine, the percentage ranged from 2.5% to 100%. The concentration of cocaine ranged from 0.09 ng/note to 889 ug/note. Benzoylecgonine was indentified only in three studies with a range from 0.71 to 130 ng/note. Other indentified drugs were: amphetamine derivatives, opiates, benzodiazepines. Conclusions: Circulating banknotes could be used to indicate substances used in a population, and those recently introduced in a geographical macro-area. The identification of very high amounts of cocaine can provide important information for the identification of banknotes used in illegal trafficking. PMID- 29016881 TI - Ephemerality of a Spring Ephemeral Gagea lutea (L.) is Attributable to Shoot Senescence Induced by Free Linolenic Acid. AB - Spring ephemerals are a group of herbaceous plants that fulfill their life cycle on the floor of deciduous forests in temperate and boreal regions during a short period of time between snowmelt and closure of the tree canopy. Near the closure, these plants' shoots senesce rapidly and the plants disappear from the floor. Since the major role of the synchronous senescence is thought to be the recycling of nutrients from vegetative organs to seeds or storage organs, some endogenous compound that is capable of promoting senescence must be involved in the timely senescence. Strong senescence-promoting activity was found in extracts of shoots of a spring ephemeral, Gagea lutea (Liliaceae), and the activity in basal leaves reached a maximum just before the commencement of senescence. The active compound was identified as alpha-linolenic acid. The level, very low 1 week before flowering, increased rapidly with time and reached a maximum 1 week after flowering. Senescence was readily observed thereafter. The maximum amount of linolenic acid was >1 mmol kg FW-1 and could fully induce senescence of the leaves. The results suggest that the ephemerality of the plant or, in other words, short longevity of shoots, is brought about by the accumulation of linolenic acid. Programmed senescence, which can mitigate the cost of survival and reproduction, enables the plant to occupy a narrow niche on the forest floor. PMID- 29016885 TI - Endogenous Pain Modulation: Association with Resting Heart Rate Variability and Negative Affectivity. AB - Objectives: Several chronic pain syndromes are characterized by deficient endogenous pain modulation as well as elevated negative affectivity and reduced resting heart rate variability. In order to elucidate the relationships between these characteristics, we investigated whether negative affectivity and heart rate variability are associated with endogenous pain modulation in a healthy population. Design, Subjects, and Methods: An offset analgesia paradigm with noxious thermal stimulation calibrated to the individual's pain threshold was used to measure endogenous pain modulation magnitude in 63 healthy individuals. Pain ratings during constant noxious heat stimulation to the arm (15 seconds) were compared with ratings during noxious stimulation comprising a 1 degrees C rise and return of temperature to the initial level (offset trials, 15 seconds). Offset analgesia was defined as the reduction in pain following the 1 degrees C decrease relative to pain at the same time point during continuous heat stimulation. Results: Evidence for an offset analgesia effect could only be found when noxious stimulation intensity (and, hence, the individual's pain threshold) was intermediate (46 degrees C or 47 degrees C). Offset analgesia magnitude was also moderated by resting heart rate variability: a small but significant offset effect was found in participants with high but not low heart rate variability. Negative affectivity was not related to offset analgesia magnitude. Conclusions: These results indicate that resting heart rate variability (HRV) is related to endogenous pain modulation (EPM) in a healthy population. Future research should focus on clarifying the causal relationship between HRV and EPM and chronic pain by using longitudinal study designs. PMID- 29016886 TI - A proposed framework of supportive and palliative care for people with high-grade glioma. AB - Background: Patients with malignant high-grade glioma (HGG) have significant supportive and palliative care needs, yet few tailored guidelines exist to inform practice. This study sought to develop an HGG framework of supportive and palliative care informed by needs reported by patients, families, and health care professionals (HCPs). Methods: This study integrates a mixed-methods research program involving: (i) exploring experiences through systematic literature review and qualitative study (10 patients, 23 carers, and 36 HCPs); and (ii) an epidemiological cohort study (N = 1821) describing care of cases of HGG in Victoria, Australia using linked hospital datasets. Recommendations based on these studies were developed by a multidisciplinary advisory committee for a framework of supportive and palliative care based on the findings of (i) and (ii). Results: Key principles guiding framework development were that care: (i) aligns with patient/family caregiver needs according to illness transition points; (ii) involves continuous monitoring of patient/family caregiver needs; (iii) be proactive in response to anticipated concerns; (iv) includes routine bereavement support; and (v) involves appropriate partnership with patients/families. Framework components and resulting activities designed to address unmet needs were enacted at illness transition points and included coordination, repeated assessment, staged information provision according to the illness transition, proactive responses and referral systems, and specific regular inquiry of patients' and family caregivers' concerns. Conclusion: This evidence-based, collaborative framework of supportive and palliative care provides an approach for patients with HGG that is responsive, relevant, and sustainable. This conceptual framework requires evaluation in robust clinical trials. PMID- 29016888 TI - Metabolic heterogeneity and plasticity of glioma stem cells in a mouse glioblastoma model. AB - Background: Glioblastomas have been shown to rely on glycolysis as an energy source. However, recent evidence suggests that at least a subset of glioma cells with stem cell-like properties can thrive on oxidative phosphorylation. It remains unclear whether both metabolic phenotypes support tumor propagation, if they are independent, and how stable they are. The present study investigated these questions with the use of isogenic murine glioma stem cells (GSCs). Methods: GSCs were established from tumors formed by Ink4a/Arf-null, H-RasV12 expressing glioma-initiating cells that differed in extracellular acidification potential. Metabolic characteristics of GSCs were determined by measurement of glucose, oxygen, and glutamine uptake, ATP content, and lactate production. Effects of metabolic inhibitors and changes in oxygen or nutrient availability on lactate production and tumorsphere growth were also determined. Results: GSCs were found either to consume more glucose and produce more lactate or to consume more oxygen and maintain a higher ATP content depending on the metabolic characteristics of the tumor cells of origin. The latter, mitochondrial-type GSCs increased lactate production after treatment with the oxidative phosphorylation inhibitor oligomycin or phenformin. Exposure to hypoxia also increased lactate production and expression of glycolysis-related enzymes and metabolites in mitochondrial-type GSCs in a reversible manner. Conclusions: Both glycolytic and mitochondrial-type energy production can sustain tumor propagation by isogenic GSCs. Whereas both phenotypes can be independent and stable, cells that rely on oxidative phosphorylation can also switch to a more glycolytic phenotype in response to metabolic stress, suggesting that plasticity is a further characteristic of GSC metabolism. PMID- 29016890 TI - CHA2DS2-VASc score and blood biomarkers to identify patients with atrial high rate episodes and paroxysmal atrial fibrillation: the role of TIMP-4 regulation Authors' reply. PMID- 29016889 TI - ARGONAUTE10 Inhibits In Vitro Shoot Regeneration Via Repression of miR165/166 in Arabidopsis thaliana. AB - Many plant cells retain their totipotency when cultured in vitro. The regulation of shoot regeneration from in vitro culture involves a number of gene products, but the nature of the associated post-transcriptional events remains largely unknown. Here, the post-transcriptional regulator ARGONAUTE10 (AGO10), a protein which is specifically expressed in the explant during the period when pro-shoot apical meristems (SAMs) are forming, has been known to inhibit shoot regeneration. In in vitro cultured explants of the loss-of-function mutant ago10, a much larger than normal number of SAMs was formed and, in these, the stem cell marker genes WUSCHEL, CLAVATA3 and SHOOT MERISTEMLESS were all strongly expressed. AGO10 repressed the accumulation of the microRNAs miR165/166, thereby up-regulating a suite of HD-ZIP III genes. The overproduction of miR166 was shown to promote shoot regeneration, while the absence of miR165/166 message resulted in a blockage to shoot regeneration and only a partial rescue of the phenotype of the ago10 mutant. The major conclusion was that the shoot regeneration inhibition determined by AGO10 functions via the repression of miR165/166. PMID- 29016887 TI - Phase I/II trial of vorinostat combined with temozolomide and radiation therapy for newly diagnosed glioblastoma: results of Alliance N0874/ABTC 02. AB - Background: Vorinostat, a histone deacetylase (HDAC) inhibitor, has shown radiosensitizing properties in preclinical studies. This open-label, single-arm trial evaluated the maximum tolerated dose (MTD; phase I) and efficacy (phase II) of vorinostat combined with standard chemoradiation in newly diagnosed glioblastoma. Methods: Patients received oral vorinostat (300 or 400 mg/day) on days 1-5 weekly during temozolomide chemoradiation. Following a 4- to 6-week rest, patients received up to 12 cycles of standard adjuvant temozolomide and vorinostat (400 mg/day) on days 1-7 and 15-21 of each 28-day cycle. Association between vorinostat response signatures and progression-free survival (PFS) and overall survival (OS) was assessed based on RNA sequencing of baseline tumor tissue. Results: Phase I and phase II enrolled 15 and 107 patients, respectively. The combination therapy MTD was vorinostat 300 mg/day and temozolomide 75 mg/m2/day. Dose-limiting toxicities were grade 4 neutropenia and thrombocytopenia and grade 3 aspartate aminotransferase elevation, hyperglycemia, fatigue, and wound dehiscence. The primary efficacy endpoint in the phase II cohort, OS rate at 15 months, was 55.1% (median OS 16.1 mo), and consequently, the study did not meet its efficacy objective. Most common treatment-related grade 3/4 toxicities in the phase II component were lymphopenia (32.7%), thrombocytopenia (28.0%), and neutropenia (21.5%). RNA expression profiling of baseline tumors (N = 76) demonstrated that vorinostat resistance (sig-79) and sensitivity (sig-139) signatures had a reverse and positive association with OS/PFS, respectively. Conclusions: Vorinostat combined with standard chemoradiation had acceptable tolerability in newly diagnosed glioblastoma. Although the primary efficacy endpoint was not met, vorinostat sensitivity and resistance signatures could facilitate patient selection in future trials. PMID- 29016891 TI - 'Hidden' Terpenoids in Plants: Their Biosynthesis, Localization and Ecological Roles. AB - Terpenoids are the largest group of plant specialized (secondary) metabolites. These naturally occurring chemical compounds are highly diverse in chemical structure. Although there have been many excellent studies of terpenoids, most have focused on compounds built solely of isoprene units. Plants, however, also contain many 'atypical' terpenoids, such as glycosylated volatile terpenes and composite-type terpenoids, the latter of which are synthesized by the coupling of isoprene units on aromatic compounds. This mini review describes these 'hidden' terpenoids, providing an overview of their biosynthesis, localization, and biological and ecological activities. PMID- 29016892 TI - Pain in Patients with Different Dementia Subtypes, Mild Cognitive Impairment, and Subjective Cognitive Impairment. AB - Objective: To assess the pain prevalence, pain intensity, and pain medication use in older patients with a diagnosed subtype of dementia, mild cognitive impairment (MCI), or subjective cognitive impairment (SCI). Design: Cross-sectional. Setting: Outpatient memory clinics. Subjects: In total, 759 patients with Alzheimer's disease (AD), vascular dementia, mixed AD and vascular pathology (MD), frontotemporal dementia, dementia with Lewy Bodies, MCI, or SCI. Methods: Self-reported presence and intensity of pain, prescribed medication, and related descriptive variables were given for each group. To compare groups on prevalence of pain, logistic regression analyses were adjusted for age, gender, and mood. Differences in pain intensity were tested using a Kruskall-Wallis test, and differences in analgesic use with chi-square analyses. Results: Pain prevalence ranged from 34% in MD to 50% in SCI. AD (odds ratio [OR] = 0.56, 95% confidence interval [CI] = 0.34-0.93) and MD (OR = 0.45, CI = 0.20-0.98) patients were less likely to report pain than SCI patients. The self-reported pain intensity did not differ between groups. In total, 62.5% of patients did not use any analgesic medication despite being in pain, which did not differ significantly between groups. Conclusion: Outpatient memory clinic patients with mild to moderate AD and MD are less likely to report pain than patients with SCI. No difference in self-reported pain intensity was present. The high percentage of patients with and without dementia who do not use analgesics when in pain raises the question of whether pain treatment is adequate in older patients. PMID- 29016893 TI - Efficacy, Safety, and Feasibility of the Morphine Microdose Method in Community Based Clinics. AB - Objectives: The goal of this study was to assess the success of the morphine microdose method in a community pain clinic setting by monitoring follow-up frequency, dose escalation, and monotherapy/polytherapy ratio. The morphine microdose method involves a pretrial reduction or elimination of systemic opioids followed by a period of abstinence. Intrathecal (IT) morphine is then started at doses of less than 0.2 mg per day. Systemic opioid abstinence is then continued after pump implant and IT morphine monotherapy. Design: Retrospective review of medical records. Setting: Private and academic pain clinic practices. Subjects: Chronic noncancer pain patients. Methods: We reviewed the charts of 60 patients who had completed a microdose regimen and had an IT pump implanted between June 11, 2008, and October 11, 2014. During IT therapy, dose change over time, pain scores, side effects, max dose, and duration were recorded. Results: The majority of patients (35/60, 58%) were successfully managed solely on morphine microdose monotherapy. These patients did not require additional oral therapy. There was a significant reduction in mean pain scores, from 7.4 +/- 0.32 before microdose therapy to 4.8 +/- 0.3 after microdose therapy. Conclusions: Microdose therapy achieved analgesia, improved safety, and avoided systemic side effects. The safety of IT therapy was increased by using a lower concentration (2 mg/mL) and lower daily doses (<3 mg/d) of morphine. Furthermore, microdose therapy was feasible, safe, and cost-effective in the outpatient setting. PMID- 29016895 TI - The Accuracy of a Fibromyalgia Diagnosis in General Practice. AB - Objective: To compare the characteristics of people with fibromyalgia (FM) with those with other forms of nonmalignant chronic pain. Design: A prospective cohort study conducted in a chronic pain management clinic within an academic medical center. Setting: Many symptoms of the chronic pain syndrome FM are common to other pain or musculoskeletal syndromes. FM may be misdiagnosed by clinicians. Subjects: Thirty-three patients with a working diagnosis of FM were identified: 26 (78.8%) participated in the study. They were matched by age (mean = 53.0 years) and gender (80.8% female) to a control group with other forms of chronic nonmalignant pain. Methods: Standardized physical examinations for FM were undertaken using the 1990 and revised 2010 American College of Rheumatology (ACR) guidelines. The groups were compared using diagnoses of psychiatric disorders and responses to the Pain Disability Index, Personal Health Questionnaire, Revised Fibromyalgia Impact Questionnaire, and Rapid Estimate Adult Literacy in Medicine. Results: The most common psychiatric disorders were depression (44.4%) and anxiety (27.3%). Incidence of at least one psychiatric condition was 80.8%, and the only difference (P = 0.002) between the two populations was the mean number of tender points: 5.6 (+/-4.2) vs controls 3.2 (+/-2.2). Only three (11.5%) participants with a prior diagnosis of FM fulfilled the 1990 ACR diagnostic criteria, increasing to 38.5% when the 2010 criteria were applied; however, 46.1% of controls also met the revised diagnostic criteria. Conclusions: FM is commonly misdiagnosed: all patients with a working diagnosis should be reassessed and reviewed to ensure that the most appropriate treatment is provided. PMID- 29016896 TI - Poor working conditions and work stress among Canadian sex workers. AB - Background: While sex work is often considered the world's oldest profession, there remains a dearth of research on work stress among sex workers (SWs) in occupational health epidemiological literature. A better understanding of the drivers of work stress among SWs is needed to inform sex work policy, workplace models and standards. Aims: To examine the factors that influence work stress among SWs in Metro Vancouver. Methods: Analyses drew from a longitudinal cohort of SWs, known as An Evaluation of Sex Workers' Health Access (AESHA) (2010-14). A modified standardized 'work stress' scale, multivariable linear regression with generalized estimating equations was used to longitudinally examine the factors associated with work stress. Results: In multivariable analysis, poor working conditions were associated with increased work stress and included workplace physical/sexual violence (beta = 0.18; 95% confidence interval (CI) 0.06, 0.29), displacement due to police (beta = 0.26; 95% CI 0.14, 0.38), working in public spaces (beta = 0.73; 95% CI 0.61, 0.84). Older (beta = -0.02; 95% CI -0.03, 0.01) and Indigenous SWs experienced lower work stress (beta = -0.25; 95% CI 0.43, -0.08), whereas non-injection (beta = 0.32; 95% CI 0.14, 0.49) and injection drug users (beta = 0.17; 95% CI 0.03, 0.31) had higher work stress. Conclusions: Vancouver-based SWs' work stress was largely shaped by poor work conditions, such as violence, policing, lack of safe workspaces. There is a need to move away from criminalized approaches which shape unsafe work conditions and increase work stress for SWs. Policies that promote SWs' access to the same occupational health, safety and human rights standards as workers in other labour sectors are also needed. PMID- 29016894 TI - Diffuse high-grade gliomas with H3 K27M mutations carry a dismal prognosis independent of tumor location. AB - Background: The novel entity of "diffuse midline glioma, H3 K27M-mutant" has been defined in the 2016 revision of the World Health Organization (WHO) classification of tumors of the central nervous system (CNS). Tumors of this entity arise in CNS midline structures of predominantly pediatric patients and are associated with an overall dismal prognosis. They are defined by K27M mutations in H3F3A or HIST1H3B/C, encoding for histone 3 variants H3.3 and H3.1, respectively, which are considered hallmark events driving gliomagenesis. Methods: Here, we characterized 85 centrally reviewed diffuse gliomas on midline locations enrolled in the nationwide pediatric German HIT-HGG registry regarding tumor site, histone 3 mutational status, WHO grade, age, sex, and extent of tumor resection. Results: We found 56 H3.3 K27M-mutant tumors (66%), 6 H3.1 K27M-mutant tumors (7%), and 23 H3-wildtype tumors (27%). H3 K27M-mutant gliomas shared an aggressive clinical course independent of their anatomic location. Multivariate regression analysis confirmed the significant impact of the H3 K27M mutation as the only independent parameter predictive of overall survival (P = 0.009). In H3 K27M-mutant tumors, neither anatomic midline location nor histopathological grading nor extent of tumor resection had an influence on survival. Conclusion: These results substantiate the clinical significance of considering diffuse midline glioma, H3 K27M-mutant, as a distinct entity corresponding to WHO grade IV, carrying a universally fatal prognosis. PMID- 29016897 TI - Genome-Wide Analysis and Expression Profiles of the MYB Genes in Brachypodium distachyon. AB - MYB transcription factors are widespread in plants and play key roles in plant development. Although MYB transcription factors have been thoroughly characterized in many plants, genome-wide analysis of the MYB gene family has not yet been undertaken in Brachypodium distachyon. In this study, 122 BdMYB transcription factors were identified, comprising 85 MYB-R2R3, 34 MYB-related and three MYB-R1R2R3. Phylogenetic analysis showed that BdMYBs, OsMYBs and AtMYBs with similar functions were clustered in the same subgroup, and the phylogenetic relationships of BdMYB transcription factors were supported by highly conserved motifs and gene structures. Two cis-elements were found in the promoters of BdMYB genes. One is related to plant growth/development, the other is related to stress responses. Gene Ontology (GO) analysis indicated that most of the BdMYB genes are involved in various biological processes. The chromosome distribution pattern strongly indicated that genome-wide tandem and segment duplication mainly contributed to the expansion of the BdMYB gene family. Synteny analysis showed that 56, 58 and 61 BdMYB genes were orthologous to rice, maize and sorghum, respectively. We further demonstrated that BdMYB genes have evolved under strong purifying selection. The expression profiles indicated that most BdMYB genes might participate in floral development and respond to abiotic stresses. Additionally, 338 pairs of proteins were predicted to interact by constructing the interaction network. This work laid the foundation and provided clues for understanding the biological functions of these transcription factors. PMID- 29016898 TI - To the Editor. PMID- 29016899 TI - Single Nucleotide Polymorphisms Associated with Pain Sensitivity After Laparoscopic Cholecystectomy. AB - Objective: To systematically evaluate variations in single-nucleotide polymorphisms within 13 candidate pain genes in patients differing in phenotype characteristics based on a composite measure of pain sensitivity. Methods: In a case-control study, 149 patients scheduled for laparoscopic cholecystectomy were individually categorized according to preoperative pain sensitivity and postoperative pain intensity. Cases (pain group) reported cannulation-induced pain intensity higher than 2.0, together with postoperative pain intensity of 7.0 or higher (visual analog scale [VAS] units), and controls (low-pain group) reported cannulation-induced pain intensity of 2.0 or lower, together with postoperative pain intensity lower than 4.0 (VAS units). Genotyping of exomes was performed in 32 case and 25 control patients compared with respect to variations within 13 candidate pain genes. Results: There were no statistically significant differences in single nucleotide polymorphisms (SNPs) within the candidate genes between the case and control groups, but minor allele SNPs in the ABCB1 and COMT genes were more common in patients with higher levels of pain sensitivity and intensity. Conclusion: In this candidate gene study, based on a composite measure of pain sensitivity, no variations reached statistical significance after correction for multiple testing, most likely due to the large number of markers analyzed and few patients. Nevertheless, the results suggest a possible genetic contribution of single-nucleotide polymorphisms within the ABCB1 and COMT genes in individuals with higher levels of pain sensitivity. PMID- 29016901 TI - The Roles of the Sole Activator-Type Auxin Response Factor in Pattern Formation of Marchantia polymorpha. AB - Cell division patterning is important to determine body shape in plants. Nuclear auxin signaling mediated by AUXIN RESPONSE FACTOR (ARF) transcription factors affects plant growth and development through regulation of cell division, elongation and differentiation. The evolutionary origin of the ARF-mediated pathway dates back to at least the common ancestor of bryophytes and other land plants. The liverwort Marchantia polymorpha has three phylogenetically distinct ARFs: MpARF1, the sole 'activator' ARF; and MpARF2 and MpARF3, two 'repressor' ARFs. Genetic screens for auxin-resistant mutants revealed that loss of MpARF1 function conferred auxin insensitivity. Mparf1 mutants showed reduced auxin inducible gene expression and various developmental defects, including thallus twisting and gemma malformation. We further investigated the role of MpARF1 in gemma development, which is traceable at the cellular level. In wild-type plants, a gemma initial first undergoes several transverse divisions to generate a single celled stalk and a gemma proper, followed by rather synchronous longitudinal divisions in the latter. Mparf1 mutants often contained multicelled stalks and showed defects in the execution and timing of the longitudinal divisions. While wild-type gemmae finally generate two meristem notches, Mparf1 gemmae displayed various numbers of ectopic meristems. These results suggest that MpARF1 regulates formative cell divisions and axis formation through auxin responses. The mechanism for activator ARF regulation of pattern formation may be shared in land plants and therefore important for the general acquisition of three-dimensional body plans. PMID- 29016902 TI - Validation of the PTSD-8 Scale in Chronic Pain Patients. AB - Objectives: The aim was to validate the short PTSD-8 scale against the Structured Clinical Interview (SCID-1) for post-traumatic stress disorder and to test the latent structure of post-traumatic stress disorder in chronic pain patients. Methods: A total of 51 chronic nonmalignant pain patients exposed to a traumatic event were consecutively recruited from a multidisciplinary pain center. All participants answered a baseline questionnaire followed by the PTSD-8 and the diagnostic interview for PTSD. Finally, the latent structure of PTSD-8 was tested in a large cohort of 419 patients with chronic nonmalignant pain using confirmatory factor analysis (CFA). Results: In total, 33.3% had a diagnosis of PTSD. A good overall accuracy was found validating the PTSD-8 against the diagnostic interview. Convergent validity was indicated as the PTSD-8 correlated strongly with scores of depression and anxiety. The results of the CFA for the PTSD-8 three-factor structure provided excellent fit for the eight post-traumatic stress disorder symptoms. Conclusions: Overall, the results showed that the PTSD 8 is a valid short screening tool to assess possible post-traumatic stress disorder among patients with chronic pain. In addition, the PTSD-8 scale comprises all of the upcoming ICD-11 post-traumatic stress disorder symptoms within its eight items. Thus, the PTSD-8 is likely also to measure the proposed ICD-11 post-traumatic stress disorder. PMID- 29016900 TI - Is the blood-brain barrier really disrupted in all glioblastomas? A critical assessment of existing clinical data. AB - The blood-brain barrier (BBB) excludes the vast majority of cancer therapeutics from normal brain. However, the importance of the BBB in limiting drug delivery and efficacy is controversial in high-grade brain tumors, such as glioblastoma (GBM). The accumulation of normally brain impenetrant radiographic contrast material in essentially all GBM has popularized a belief that the BBB is uniformly disrupted in all GBM patients so that consideration of drug distribution across the BBB is not relevant in designing therapies for GBM. However, contrary to this view, overwhelming clinical evidence demonstrates that there is also a clinically significant tumor burden with an intact BBB in all GBM, and there is little doubt that drugs with poor BBB permeability do not provide therapeutically effective drug exposures to this fraction of tumor cells. This review provides an overview of the clinical literature to support a central hypothesis: that all GBM patients have tumor regions with an intact BBB, and cure for GBM will only be possible if these regions of tumor are adequately treated. PMID- 29016903 TI - Screening for latent tuberculosis in UK health care workers. AB - Background: Active tuberculosis (TB) infection was diagnosed in two health care workers (HCWs) originally from high-incidence countries at a National Health Service (NHS) hospital trust in Northern England. In response, the trust screened current clinical employees from countries with a high TB prevalence for active and latent TB infection (LTBI). Aims: To identify the number of HCWs, within the organization, who are at risk of TB infection. Methods: Clinical employees from countries with a high TB prevalence (those described by the World Health Organization as having an incidence of >40 cases per 100000 populations) were reviewed. Employees were identified via human resource systems and occupational health records, from which nationality or country of birth was identified. A letter was sent to identified employees advising of the rationale for a reviewed screening process and inviting them to attend for an interferon-gamma release assay (IGRA) blood test. Results: A total of 587 clinical staff were identified as fitting the criteria of clinical HCWs from high-incidence countries. Of 469 HCWs screened, 27% screened positive using IGRA. This represented 4% of the total clinical workforce for the organization. Conclusions: A considerable proportion of the workforce at this NHS hospital trust had previously undiagnosed LTBI, carrying a risk of conversion to active disease. Further action, such as treatment of LTBI or increased workforce awareness of symptoms of active disease, could help to reduce the risk of transmission of TB to patients and the need for associated 'look-back' exercises. PMID- 29016904 TI - Arabinogalactan Proteins Accumulate in the Cell Walls of Searching Hyphae of the Stem Parasitic Plants, Cuscuta campestris and Cuscuta japonica. AB - Stem parasitic plants (Cuscuta spp.) develop a specialized organ called a haustorium to penetrate their hosts' stem tissues. To reach the vascular tissues of the host plant, the haustorium needs to overcome the physical barrier of the cell wall, and the parasite-host interaction via the cell wall is a critical process. However, the cell wall components responsible for the establishment of parasitic connections have not yet been identified. In this study, we investigated the spatial distribution patterns of cell wall components at a parasitic interface using parasite-host complexes of Cuscuta campestris Arabidopsis thaliana and Cuscuta japonica-Glycine max. We focused on arabinogalactan proteins (AGPs), because AGPs accumulate in the cell walls of searching hyphae of both C. campestris and C. japonica. We found more AGPs in elongated haustoria than in pre haustoria, indicating that AGP accumulation is developmentally regulated. Using in situ hybridization, we identified five genes in C. campestris that encode hyphal-expressed AGPs that belong to the fasciclin like AGP (FLA) family, which were named CcFLA genes. Three of the five CcFLA genes were expressed in the holdfast, which develops on the Cuscuta stem epidermis at the attachment site for the host's stem epidermis. Our results suggest that AGPs are involved in hyphal elongation and adhesion to host cells, and in the adhesion between the epidermal tissues of Cuscuta and its host. PMID- 29016905 TI - Relative Abuse of Crush-Resistant Prescription Opioid Tablets via Alternative Oral Modes of Administration. AB - Objective: Some crush-resistant tablet formulations (CRTs) reduce prescription opioid abuse by nonoral routes of administration (ROAs), especially insufflation and injection, while oral abuse increases. Oral abuse involving product manipulation vs swallowing whole for CRTs and comparators was examined. Methods: Abuse by oral modes of administration (e.g., swallowing whole, chewing, dissolving in the mouth), was examined using the ASI-MV, a computerized, clinical interview for adults in substance abuse treatment from January 2009 to March 2015. CRTs (reformulated oxycodone extended-release [ER], reformulated oxymorphone ER, and tapentadol ER) were compared with non-CRT versions, morphine ER, and oxycodone immediate-release single entity. Analyses employed descriptive statistics and logistic regression. Results: Among 364,329 unique assessments, 18,135 patients reported oral abuse of the CRTs and comparators examined. CRTs had a higher prevalence of oral abuse involving product manipulation than comparators (P < 0.0001) among all abusers of product. Oral abuse involving product manipulation for CRTs was greater among the subset of patients reporting oral abuse and significantly higher than comparators (P < 0.003). CRTs were significantly less likely than comparators to be swallowed whole (P < 0.0001) and significantly more likely to be chewed (P < 0.003). CRTs were more likely to be dissolved in the mouth than most comparators. Conclusions: Results suggest the need for abuse-deterrent formulations designed to reduce abuse by oral administration with product manipulation, such as chewing. Advances in this area may reduce the overall abuse of prescription opioids and interrupt the progression from abuse by swallowing whole to oral administration involving product manipulation and other ROAs. PMID- 29016840 TI - 2017 HRS/EHRA/ECAS/APHRS/SOLAECE expert consensus statement on catheter and surgical ablation of atrial fibrillation. PMID- 29016907 TI - Clinical value of different QRS-T angle expressions. AB - Aims: Increased spatial angle between QRS complex and T wave loop orientations has repeatedly been shown to predict cardiac risk. However, there is no consensus on the methods for the calculation of the angle. This study compared the reproducibility and predictive power of three most common ways of QRS-T angle assessment. Methods and results: Electrocardiograms of 352 healthy subjects, 941 survivors of acute myocardial infarction (MI), and 605 patients recorded prior to the implantation of automatic defibrillator [implantable cardioverter defibrillator (ICD)] were used to obtain QRS-T angle measurements by the maximum R to T (MRT), area R to T (ART), and total cosine R to T (TCRT) methods. The results were compared in terms of physiologic reproducibility and power to predict mortality in the cardiac patients during 5-year follow-up. Maximum R to T results were significantly less reproducible compared to the other two methods. Among both survivors of acute MI and ICD recipients, TCRT method was statistically significantly more powerful in predicting mortality during follow up. Among the acute MI survivors, increased spatial QRS-T angle (TCRT assessment) was particularly powerful in predicting sudden cardiac death with the area under the receiver operator characteristic of 78% (90% confidence interval 63-90%). Among the ICD recipients, TCRT also predicted mortality significantly among patients with prolonged QRS complex duration when the spatial orientation of the QRS complex is poorly defined. Conclusion: The TCRT method for the assessment of spatial QRS-T angle appears to offer important advantages in comparison to other methods of measurement. This approach should be included in future clinical studies of the QRS-T angle. The TCRT method might also be a reasonable candidate for the standardization of the QRS-T angle assessment. PMID- 29016906 TI - YUCCA9-Mediated Auxin Biosynthesis and Polar Auxin Transport Synergistically Regulate Regeneration of Root Systems Following Root Cutting. AB - Recovery of the root system following physical damage is an essential issue for plant survival. An injured root system is able to regenerate by increases in lateral root (LR) number and acceleration of root growth. The horticultural technique of root pruning (root cutting) is an application of this response and is a common garden technique for controlling plant growth. Although root pruning is widely used, the molecular mechanisms underlying the subsequent changes in the root system are poorly understood. In this study, root pruning was employed as a model system to study the molecular mechanisms of root system regeneration. Notably, LR defects in wild-type plants treated with inhibitors of polar auxin transport (PAT) or in the auxin signaling mutant auxin/indole-3-acetic acid19/massugu2 were recovered by root pruning. Induction of IAA19 following root pruning indicates an enhancement of auxin signaling by root pruning. Endogenous levels of IAA increased after root pruning, and YUCCA9 was identified as the primary gene responsible. PAT-related genes were induced after root pruning, and the YUCCA inhibitor yucasin suppressed root regeneration in PAT-related mutants. Therefore, we demonstrate the crucial role of YUCCA9, along with other redundant YUCCA family genes, in the enhancement of auxin biosynthesis following root pruning. This further enhances auxin transport and activates downstream auxin signaling genes, and thus increases LR number. PMID- 29016909 TI - Corrigenda. PMID- 29016911 TI - Opioid Resistance Associated with CYP3A4 Hyperactivity and COMT Polymorphism in an Oncological Patient. PMID- 29016912 TI - Are Gadolinium-Based Contrast Media Safe Alternatives for Spine Procedures? PMID- 29016908 TI - The effect of age on fitness among female firefighters. AB - Background: The physical demands of firefighting require both cardiovascular and muscular fitness, which both decline with age. While much has been published on age-related changes among male firefighters (FFs), data on female FFs are lacking. Aims: To describe cardiorespiratory fitness (CRF) and muscular fitness in a sample of female career FFs ranging in age from 25 to 60 years and determine whether ageing affects their achievement of the current recommended professional CRF standards of 12 metabolic equivalents (METs). Methods: Data were collected on female FFs over an 11-year period. A cross-sectional analysis using one-way analysis of variance with Bonferroni post hoc comparisons was used to compare age groups. Results: There were 96 study participants. Maximum METs was significantly higher (P < 0.01) in the 25- to 34-year age group (14.6 +/- 2.1) compared with the 35-44 age group (12.9 +/- 2.0 METs) and the 45-54 age group (12.2 +/- 1.8 METs, P < 0.001). While the mean values of all measured age groups met or exceeded the 12-MET profession standard, as many as one-third of FFs <45 years of age and 43% of FFs >45 years of age fell below the benchmark of 12 METs. Muscular fitness as measured by maximum number of push-ups, sit-ups and back endurance was not significantly different between age groups. Conclusions: Fire departments should recognize and take steps to ensure all female FFs maintain CRF and muscular fitness throughout their careers. PMID- 29016910 TI - Left atrial appendage occluder implantation in Europe: indications and anticoagulation post-implantation. Results of the European Heart Rhythm Association Survey. AB - The aim of this EP Wire survey was to assess the indications and anticoagulation strategies post-left atrial appendage occluder (LAAO) implantation for stroke prevention in patients with non-valvular atrial fibrillation in Europe. A total of 33 centres in 13 European countries completed the survey. All centres were members of the European Heart Rhythm Association Electrophysiology Research Network. Left atrial appendage occluder procedures were performed by electrophysiologists in 52% of the centres and by interventional cardiologists in the remaining centres. The EP Wire survey has revealed that the most common indications for LAAO are stroke prevention in patients at high thrombo-embolic risk and absolute contraindications to oral anticoagulation (OAC) therapy or a history of bleeding. Early- and long-term post-implantation anticoagulation strategies in patients with and without device thrombosis were very heterogeneous between centres with most strategies not being supported by the randomized trials. In patients without contraindications to OAC, 41% of the centres would prescribe no therapy at all after 6 months following LAAO implantation. In patients with LAA thrombus during follow-up and patients with absolute contraindications to OAC, management was highly heterogeneous and included aspirin, clopidogrel, non-vitamin K antagonist oral anticoagulants, low molecular weight heparin, surgery, unfractionated heparin, or no therapy. PMID- 29016914 TI - Spinal Cord Injury During Attempted Cervical Interlaminar Epidural Injection of Steroids. AB - Background: Interlaminar cervical epidural injections are commonly performed in the practice of interventional pain medicine. Injury to the spinal cord following injection into the substance of the cord is a known complication of this procedure, but it has rarely been reported and illustrated in the literature. Objective: To describe and analyze a case where an inadvertent injection of contrast medium into the cervical spinal cord occurred. Highlighted is the dissonance between how the procedure was performed and published guidelines for its performance. Presented is the first published oblique fluoroscopic image of an intramedullary injection. Conclusions: By recognizing the potential complications of a procedure, and by describing means of avoiding those complications, practice guidelines serve to reduce the risk, and thereby the incidence of complications. Deviation from established best practice guidelines reinstates risks of complications that can be avoided. PMID- 29016916 TI - Sensitization to cow's milk protein in a dairy worker. AB - Background: Repeated skin exposure and inhalation of milk proteins may lead to IgE-mediated sensitization, normally manifested at the site of contact. Although this is a phenomenon predominantly found in children, it has also been observed in adults. Aims: To describe a case of a worker who, after being exposed to milk proteins for many years, eventually experienced episodes of anaphylaxis. Case report: A 62-year-old worker experienced severe episodes of anaphylaxis following the intake of dairy products. He had worked in the dairy industry for 17 years, where he was exposed to dried milk every day. Conclusions: This case report illustrates how continued exposure to milk proteins, either by skin contact or inhalation, may lead to sensitization which could result in severe manifestations of anaphylaxis. PMID- 29016917 TI - Cannabis for the Treatment of Chronic Pain in the Era of an Opioid Epidemic: A Symposium-Based Review of Sociomedical Science. AB - Objective: This manuscript reviews medical literature published pertaining to the management of chronic pain with medical marijuana therapy (MMJ), with an emphasis on the social, medical, and legal aspects of therapy. Design: Narrative review of peer-reviewed literature. Methods: The 3rd Symposium on Controlled Substances and Their Alternatives for the Treatment of Pain was held in Boston on February 27, 2016, with a focus on MMJ for the treatment of chronic pain. Invited speakers had diverse backgrounds, including pain management, addiction psychiatry, neurology, and legal authorities. The purpose of this conference and this subsequent narrative review is to provide a medical, legal, and logistical framework for physicians and other health care providers to refer to when considering the initiation of medical marijuana therapy. Results: The invited speakers each covered a unique aspect of MMJ therapy for the treatment of chronic pain. These presentations highlighted the current data for and against the use of MMJ as a pain therapy. Optimal patient selection and screening, in addition to policy developments, were discussed. Conclusions: Increasing interest in MMJ for chronic pain underscores a need for primary care and pain physicians to better understand the indications and evidence for its use free from cultural bias. Given a lack of full conclusive clinical utility, continued research is needed to better understand how to best utilize MMJ therapy for the treatment of chronic pain. Policy initiatives, such as enumerated indications, should follow medical science in order to prevent another abused substance epidemic. PMID- 29016918 TI - A Critical View on ABC Transporters and Their Interacting Partners in Auxin Transport. AB - Different subclasses of ATP-binding cassette (ABC) transporters have been implicated in the transport of native variants of the phytohormone auxin. Here, the putative, individual roles of key members belonging to the ABCB, ABCD and ABCG families, respectively, are highlighted and the knowledge of their assumed expression and transport routes is reviewed and compared with their mutant phenotypes. Protein-protein interactions between ABC transporters and regulatory components during auxin transport are summarized and their importance is critically discussed. There is a focus on the functional interaction between members of the ABCB family and the FKBP42, TWISTED DWARF1, acting as a chaperone during plasma membrane trafficking of ABCBs. Further, the mode and relevance of functional ABCB-PIN interactions is diagnostically re-evaluated. A new nomenclature describing precisely the most likely ABCB-PIN interaction scenarios is suggested. Finally, available tools for the detection and prediction of ABC transporter interactomes are summarized and the potential of future ABC transporter interactome maps is highlighted. PMID- 29016915 TI - Drought Tolerance Conferred in Soybean (Glycine max. L) by GmMYB84, a Novel R2R3 MYB Transcription Factor. AB - MYB-type transcription factors (MYB TFs) play diverse roles in plant development and stress responses. However, the mechanisms underlying the actions of MYB TFs during stress response remain unclear. In this study we identified a R2R3-MYB TF in soybean (Glycine max), denoted GmMYB84, which contributes to drought resistance. Expression of GmMYB84 was induced by drought, salt stress, H2O2 and ABA. Compared with the wild type (WT), GmMYB84-overexpressing soybean mutants (OE lines) exhibited enhanced drought resistance with a higher survival rate, longer primary root length, greater proline and reactive oxygen species (ROS) contents, higher antioxidant enzyme activities [peroxidase (POD), catalase (CAT) and superoxide dismutase (SOD)], a lower dehydration rate and reduced malondialdehyde (MDA) content. We also found that ROS could induce SOD/POD/CAT activity in OE lines. In particular, we found that the optimal level of ROS is required for GmMYB84 to modulate primary root elongation. Some ROS-related genes were up regulated under abiotic stress in GmMYB84 transgenic plants compared with the WT. Furthermore, electrophoretic mobility shift assay and luciferase reporter analysis demonstrated that GmMYB84 binds directly to the promoter of GmRBOHB-1 and GmRBOHB-2 genes. Based on this evidence, we propose a model for how GmMYB84, H2O2 and antioxidant enzymes work together to control root growth under both optimal and drought stress conditions. PMID- 29016913 TI - Phytochelatin Synthase has Contrasting Effects on Cadmium and Arsenic Accumulation in Rice Grains. AB - Phytochelatin (PC) synthesis has been well demonstrated as a major metal tolerance mechanism in Arabidopsis thaliana, whereas its contribution to long distance element transport especially in monocots remains elusive. Using rice as a cereal model, we examined physiological roles of Oryza sativa phytochelatin synthase 1 (OsPCS1) in the distribution and detoxification of arsenic (As) and cadmium (Cd), two toxic elements associated with major food safety concerns. First, we isolated four different transcript variants of OsPCS1 as well as one from OsPCS2. Quantitative real-time reverse transcription-PCR (RT-PCR) of each OsPCS transcript in rice seedlings suggested that expression of OsPCS1full, the longest OsPCS1 variant, was most abundant, followed by OsPCS2. Heterologous expression of OsPCS variants in PCS-deficient mutants of Schizosaccharomyces pombe and A. thaliana suggested that OsPCS1full possessed PCS activity in response to As(III) and Cd while the activity of other PCS variants was very low. To address physiological functions in toxic element tolerance and accumulation, two independent OsPCS1 mutant rice lines (a T-DNA and a Tos17 insertion line) were identified. The OsPCS1 mutants exhibited increased sensitivity to As(III) and Cd in hydroponic experiments, showing the importance of OsPCS1-dependent PC synthesis for rice As(III) and Cd tolerance. Elemental analyses of rice plants grown in soil with environmentally relevant As and Cd concentrations showed increased As accumulation and decreased Cd accumulation in grains of the T-DNA line. The Tos17 mutant also exhibited the reduced Cd accumulation phenotype. These contrasting effects on As and Cd distribution to grains suggest the existence of at least partially distinct PC-dependent pathways for As and Cd. PMID- 29016919 TI - Challenges of developing small-molecule kinase inhibitors for brain tumors and the need for emphasis on free drug levels. AB - Despite biological rationale and significant clinical study, the pursuit of small molecule kinase inhibitors for the treatment of brain cancers has had very limited success. This Advance-in-Brief discusses the need for drugs to achieve free brain penetration to engage their targets where CNS tumors reside. This need to achieve free, as opposed to total, drug concentrations in the brain may be a contributing factor to why so many small-molecule kinase inhibitors have not realized success in the neuro-oncology setting. For kinase targets of interest for brain cancer, either the vast majority of small-molecule inhibitors have data suggesting that free brain penetration would be limited or there are inadequate data to suggest that free brain penetration could be expected. Therefore, kinase targets of interest in the treatment of brain cancers may be inadequately assessed due to a lack of freely brain-penetrant inhibitors available for clinical study. Encouraging recent drug discovery efforts that focused on achieving free brain penetration for cancers in the CNS are highlighted. Still, further efforts are needed to enable thorough clinical evaluation of biological hypotheses. PMID- 29016920 TI - The objective lens of the electron microscope with correction of spherical and axial chromatic aberrations. AB - The paper describes the principle of operation of a relatively simple aberration corrector for the transmission electron microscope objective lens. The electron optical system of the aberration corrector consists of the two main elements: an electrostatic mirror with rotational symmetry and a magnetic deflector formed by the round-shaped magnetic poles. The corrector operation is demonstrated by calculations on the example of correction of basic aberrations of the well-known objective lens with a bell-shaped distribution of the axial magnetic field. Two of the simplest versions of the corrector are considered: a corrector with a two electrode electrostatic mirror and a corrector with a three-electrode electrostatic mirror. It is shown that using the two-electrode mirror one can eliminate either spherical or chromatic aberration of the objective lens, without changing the value of its linear magnification. Using a three-electrode mirror, it is possible to eliminate spherical and chromatic aberrations of the objective lens simultaneously, which is especially important in designing electron microscopes with extremely high resolution. PMID- 29016921 TI - Atomic and nanoscale imaging of a cellulose nanofiber and Pd nanoparticles composite using lower-voltage high-resolution TEM. AB - We have examined the advanced application of transmission electron microscopy (TEM) for the structural characterization of a composite of cellulose nanofiber (CNF) and palladium (Pd) nanoparticles. In the present study, we focused on electron-irradiation damage and optimization of high-resolution TEM imaging of the composite. The investigation indicates that the CNF breaks even under low electron-dose conditions at an acceleration voltage of 200 kV. We then applied lower-voltage TEM at 60 kV using a spherical aberration corrector and a monochromator, in order to reduce electron-irradiation damage and improve the spatial resolution. The TEM observation achieved high-resolution imaging and revealed the existence of small Pd nanoparticles, around 2 nm in diameter, supported on the CNF. It is considered that the use of a monochromator in combination with spherical aberration correction contributed to the atomic and nanoscale imaging of the composite, owing to the improvement of the information limit under a lower-acceleration voltage. PMID- 29016922 TI - Morphologic mechanisms of increased vascular permeability of triolein emulsion to the blood-brain barrier. AB - Triolein emulsion has been known to increase vascular permeability in the brain when it is infused into the carotid artery. The purpose of this study was to identify the morphologic mechanism of increased vascular permeability in brain induced by infusion of emulsified triolein into the carotid artery by transmission electron microscopy (TEM). Triolein emulsion was infused into the carotid artery of rats. TEM using lanthanum tracer was used to evaluate morphologic changes in endothelium with a focus on transcytotic vesicles and tight junction opening. The treat group showed multiple transcytotic vesicles containing lanthanum tracer within endothelium on TEM. TEM also revealed that lanthanum tracer entered neural interstitium through tight junctions between capillary endothelial cells infrequently in the treat group. No evidence of transcytotic vesicles containing lanthanum tracer or lanthanum leakage through tight junctions was observed in the control group. Transcytosis and the opening of tight junctions appears the pathway for vascular permeability enhancement by triolein. This result could be utilized in studies on the blood-brain barrier and by those searching for chemotherapeutic methods that deliver anti-tumor agents to normally drug inaccessible organs. PMID- 29016923 TI - Surface morphology and dislocation characteristics near the surface of 4H-SiC wafer using multi-directional scanning transmission electron microscopy. AB - To improve the reliability of silicon carbide (SiC) electronic power devices, the characteristics of various kinds of crystal defects should be precisely understood. Of particular importance is understanding the correlation between the surface morphology and the near surface dislocations. In order to analyze the dislocations near the surface of 4H-SiC wafers, a dislocation analysis protocol has been developed. This protocol consists of the following process: (1) inspection of surface defects using low energy scanning electron microscopy (LESEM), (2) identification of small and shallow etch pits using KOH low temperature etching, (3) classification of etch pits using LESEM, (4) specimen preparation of several hundred nanometer thick sample using the in-situ focused ion beam micro-sampling(r) technique, (5) crystallographic analysis using the selected diffraction mode of the scanning transmission electron microscope (STEM), and (6) determination of the Burgers vector using multi-directional STEM (MD-STEM). The results show a correlation between the triangular terrace shaped surface defects and an hexagonal etch pit arising from threading dislocations, linear shaped surface defects and elliptical shaped etch pits arising from basal plane dislocations. Through the observation of the sample from two orthogonal directions via the MD-STEM technique, a basal plane dislocation is found to dissociate into an extended dislocation bound by two partial dislocations. A protocol developed and presented in this paper enables one to correlate near surface defects of a 4H-SiC wafer with the root cause dislocations giving rise to those surface defects. PMID- 29016924 TI - Basics and applications of ELNES calculations. AB - The electron energy loss near edge structures (ELNES) appearing in an electron energy loss spectrum obtained through transmission electron microscopy (TEM) have the potential to unravel atomic and electronic structures with sub-nano meter resolution. For this reason, TEM-ELNES has become one of the most powerful analytical methods in materials research. On the other hand, theoretical calculations are indispensable in interpreting the ELNES spectrum. Here, the basics and applications of one-particle, two-particle and multi-particle ELNES calculations are reviewed. A key point for the ELNES calculation is the proper introduction of the core-hole effect. Some applications of one-particle ELNES calculations to huge systems of more than 1000 atoms, and complex systems, such as liquids, are reported. In the two-particle calculations, the importance of the correct treatment of the excitonic interaction is demonstrated in calculating the low-energy ELNES, for example at the Li-K edge. In addition, an unusually strong excitonic interactions in the O-K edge of perovskite oxides is identified. The multi-particle calculations are necessary to reproduce the multiplet structures appearing at the transition metal L2,3-edges and rare-earth M4,5-edges. Applications to dilute magnetic semiconductors and Li-ion battery materials are presented. Furthermore, beyond the 'conventional' ELNES calculations, theoretical calculations of electron/X-ray magnetic circular dichroism (MCD) and the vibrational information in ELNES, are reported. PMID- 29016925 TI - Divergent evolution of temozolomide resistance in glioblastoma stem cells is reflected in extracellular vesicles and coupled with radiosensitization. AB - Background: Glioblastoma (GBM) is almost invariably fatal due to failure of standard therapy. The relapse of GBM following surgery, radiation, and systemic temozolomide (TMZ) is attributed to the ability of glioma stem cells (GSCs) to survive, evolve, and repopulate the tumor mass, events on which therapy exerts a poorly understood influence. Methods: Here we explore the molecular and cellular evolution of TMZ resistance as it emerges in vivo (xenograft models) in a series of human GSCs with either proneural (PN) or mesenchymal (MES) molecular characteristics. Results: We observed that the initial response of GSC-initiated intracranial xenografts to TMZ is eventually replaced by refractory growth pattern. Individual tumors derived from the same isogenic GSC line expressed divergent and complex profiles of TMZ resistance markers, with a minor representation of O6-methylguanine DNA methyltransferase (MGMT) upregulation. In several independent TMZ-resistant tumors originating from MES GSCs we observed a consistent diminution of mesenchymal features, which persisted in cell culture and correlated with increased expression of Nestin, decline in transglutaminase 2 and sensitivity to radiation. The corresponding mRNA expression profiles reflective of TMZ resistance and stem cell phenotype were recapitulated in the transcriptome of exosome-like extracellular vesicles (EVs) released by GSCs into the culture medium. Conclusions: Intrinsic changes in the tumor-initiating cell compartment may include loss of subtype characteristics and reciprocal alterations in sensitivity to chemo- and radiation therapy. These observations suggest that exploiting therapy-induced changes in the GSC phenotype and alternating cycles of therapy may be explored to improve GBM outcomes. PMID- 29016927 TI - Clinical Use of Pregabalin in General Practice in Catalonia, Spain: A Population Based Cross-Sectional Study. AB - Objective: The aim of this study was to determine the pattern of use of pregabalin and the appropriateness of treatment, so that interventions could be designed to improve various clinical approaches to the use of pregabalin to include unlicensed indications. Design: A descriptive, cross-sectional, multicenter study was performed between April 2014 and January 2015. Setting: Fifty-three primary health care centers covering 1,250,000 inhabitants. Subjects: A total of 10,155 patients with pregabalin prescriptions. Methods: Demographic (gender, age) and clinical (licensed indications for pregabalin, treatment duration, dosing schedule, diagnoses, kidney function, previous treatment with pregabalin, and additional drug treatment combined with pregabalin) variables obtained from health records were studied. The indicators were related to the daily dose of pregabalin, diagnoses, and treatment. Results: A total of 64.2% of patients treated with pregabalin were female (mean age = 62.3 years; SD = 15.2 years). Twenty-nine patients were younger than age 18 years. A total of 68.2% of patients were taking pregabalin for an appropriate indication, 45.2% were using pregabalin off-label for bone and joint pain, and 15.1% were using pregabalin for fibromyalgia. A total of 71.9% of patients started treatment with pregabalin without previously using firstline drugs, such as amitriptyline or gabapentin, and 66% of active treatments had been initiated during the year before the study. In 47% of patients with glomerular filtration rates lower than 15 mL/min, the dose exceeded the maximum. Conclusions: Our study reveals that pregabalin is used for unlicensed indications and often when firstline drugs have not been trialed and suggests that better routines in diagnosis and prescription may improve treatment outcomes. Our study also provides novel information about the use of doses of pregabalin that are higher than recommended for patients with renal impairment. PMID- 29016926 TI - Activation of WEE1 confers resistance to PI3K inhibition in glioblastoma. AB - Background: Oncogenic activation of phosphatidylinositol-3 kinase (PI3K) signaling plays a pivotal role in the development of glioblastoma (GBM). However, pharmacological inhibition of PI3K has so far not been therapeutically successful due to adaptive resistance through a rapid rewiring of cancer cell signaling. Here we identified that WEE1 is activated after transient exposure to PI3K inhibition and confers resistance to PI3K inhibition in GBM. Methods: Patient derived glioma-initiating cells and established GBM cells were treated with PI3K inhibitor or WEE1 inhibitor alone or in combination, and cell proliferation was evaluated by CellTiter-Blue assay. Cell apoptosis was analyzed by TUNEL, annexin V staining, and blotting of cleaved caspase-3 and cleaved poly(ADP-ribose) polymerase. Both subcutaneous xenograft and orthotropic xenograft studies were conducted to evaluate the effects of the combination on tumorigenesis; the tumor growth was monitored by bioluminescence imaging, and tumor tissue was analyzed by immunohistochemistry to validate signaling changes. Results: PI3K inhibition activates WEE1 kinase, which in turn phosphorylates cell division control protein 2 homolog (Cdc2) at Tyr15 and inhibits Cdc2 activity, leading to G2/M arrest in a p53-independent manner. WEE1 inhibition abrogated the G2/M arrest and propelled cells to prematurely enter into mitosis and consequent cell death through mitotic catastrophe and apoptosis. Additionally, combination treatment significantly suppressed tumor growth in a subcutaneous model but not in an intracranial model due to limited blood-brain barrier penetration. Conclusions: Our findings highlight WEE1 as an adaptive resistant gene activated after PI3K inhibition, and inhibition of WEE1 potentiated the effectiveness of PI3K targeted inhibition, suggesting that a combinational inhibition of WEE1 and PI3K might allow successful targeted therapy in GBM. PMID- 29016928 TI - Integrating Plant Science and Crop Modeling: Assessment of the Impact of Climate Change on Soybean and Maize Production. AB - Increasing global CO2 emissions have profound consequences for plant biology, not least because of direct influences on carbon gain. However, much remains uncertain regarding how our major crops will respond to a future high CO2 world. Crop model inter-comparison studies have identified large uncertainties and biases associated with climate change. The need to quantify uncertainty has drawn the fields of plant molecular physiology, crop breeding and biology, and climate change modeling closer together. Comparing data from different models that have been used to assess the potential climate change impacts on soybean and maize production, future yield losses have been predicted for both major crops. When CO2 fertilization effects are taken into account significant yield gains are predicted for soybean, together with a shift in global production from the Southern to the Northern hemisphere. Maize production is also forecast to shift northwards. However, unless plant breeders are able to produce new hybrids with improved traits, the forecasted yield losses for maize will only be mitigated by agro-management adaptations. In addition, the increasing demands of a growing world population will require larger areas of marginal land to be used for maize and soybean production. We summarize the outputs of crop models, together with mitigation options for decreasing the negative impacts of climate on the global maize and soybean production, providing an overview of projected land-use change as a major determining factor for future global crop production. PMID- 29016932 TI - Systemic Effects of Epidural Corticosteroid Injection. PMID- 29016930 TI - Beau's lines. PMID- 29016929 TI - Trivalent CAR T cells overcome interpatient antigenic variability in glioblastoma. AB - Background: Glioblastoma (GBM) is the most common primary malignant brain cancer, and is currently incurable. Chimeric antigen receptor (CAR) T cells have shown promise in GBM treatment. While we have shown that combinatorial targeting of 2 glioma antigens offsets antigen escape and enhances T-cell effector functions, the interpatient variability in surface antigen expression between patients hinders the clinical impact of targeting 2 antigen pairs. This study addresses targeting 3 antigens using a single CAR T-cell product for broader application. Methods: We analyzed the surface expression of 3 targetable glioma antigens (human epidermal growth factor receptor 2 [HER2], interleukin-13 receptor subunit alpha-2 [IL13Ralpha2], and ephrin-A2 [EphA2]) in 15 primary GBM samples. Accordingly, we created a trivalent T-cell product armed with 3 CAR molecules specific for these validated targets encoded by a single universal (U) tricistronic transgene (UCAR T cells). Results: Our data showed that co-targeting HER2, IL13Ralpha2, and EphA2 could overcome interpatient variability by a tendency to capture nearly 100% of tumor cells in most tumors tested in this cohort. UCAR T cells made from GBM patients' blood uniformly expressed all 3 CAR molecules with distinct antigen specificity. UCAR T cells mediated robust immune synapses with tumor targets forming more polarized microtubule organizing centers and exhibited improved cytotoxicity and cytokine release over best monospecific and bispecific CAR T cells per patient tumor profile. Lastly, low doses of UCAR T cells controlled established autologous GBM patient derived xenografts (PDXs) and improved survival of treated animals. Conclusion: UCAR T cells can overcome antigenic heterogeneity in GBM and lead to improved treatment outcomes. PMID- 29016931 TI - The Tri-Institutional Pain Registry-Analysis of Outpatient Pain Management at a Specialized Cancer Center. AB - Objectives: The Outpatient Pain Clinics at Memorial Sloan Kettering Cancer Center participated in developing a pain registry to gain insight on the referral and management of cancer pain as related to demographic information, cancer history, prescription records, and interventional pain procedures stored in the institutional database. Methods: Five cohorts (subsets of one another) were defined and compared to describe demographics and differences in management and outcomes by age, race, sex, and cancer type. Clinic patients were compared with the entire institution to determine factors associated with better pain relief and reduced side effects. Results: A small percentage were referred to a pain specialist. A total of 1,043 patients completed 3,544 surveys. Compared with the institution, there were higher proportions of patients age 51 to 60 years, nonwhites, and patients with thoracic, abdominal, and head and neck cancers. Medical management controlled pain with three drug categories in 40% of visits. Short-acting opioids were the only category that statistically provided good pain relief with fewer side effects. Pain scores were improved with increasing opioid dose. Management differed by sex, age, and race; women consistently had lower doses of opioids, poorer pain control, more side effects, and were prescribed a greater variety of medications. Conclusions: A limited set of medications was required to manage most patients in the clinic, supporting the continued place of opioids and the World Health Organization analgesic ladder in managing cancer pain. Women may need a more nuanced approach for obtaining the best balance of pain relief and side effects. PMID- 29016933 TI - Rice Inositol Polyphosphate Kinase (OsIPK2) Directly Interacts with OsIAA11 to Regulate Lateral Root Formation. AB - The plant hormone auxin controls many aspects of plant growth and development by promoting the degradation of Auxin/Indole-3-acetic acid (Aux/IAA) proteins. The domain II (DII) of Aux/IAA proteins is sufficient for eliciting the degradation by directly interacting with the auxin receptor F-box protein TIR1 to form a TIR1/AFBs-Aux/IAA complex in an auxin-dependent manner. However, the underlying mechanisms of fine-tuning Aux/IAA degradation by auxin stimuli remain to be elucidated. Here, we show that OsIPK2, a rice (Oryza sativa) inositol polyphosphate kinase, directly interacts with an Aux/IAA protein OsIAA11 to repress its degradation. In a rice protoplast transient expression system, the auxin-induced degradation of Myc-OsIAA11 fusion was delayed by co-expressed GFP OsIPK2 proteins. Furthermore, expressing additional OsIPK2 or its N-terminal amino acid sequence enhanced the accumulation of OsIAA11 proteins in transgenic plants, which in turn caused defects in lateral root formation and auxin response. Taken together, we identify a novel co-factor of Aux/IAA in auxin signaling and demonstrate its role in regulating lateral root development. PMID- 29016935 TI - Co-ordinated Changes in the Accumulation of Metal Ions in Maize (Zea mays ssp. mays L.) in Response to Inoculation with the Arbuscular Mycorrhizal Fungus Funneliformis mosseae. AB - Arbuscular mycorrhizal symbiosis is an ancient interaction between plants and fungi of the phylum Glomeromycota. In exchange for photosynthetically fixed carbon, the fungus provides the plant host with greater access to soil nutrients via an extensive network of root-external hyphae. Here, to determine the impact of the symbiosis on the host ionome, the concentration of 19 elements was determined in the roots and leaves of a panel of 30 maize varieties, grown under phosphorus-limiting conditions, with or without inoculation with the fungus Funneliformis mosseae. Although the most recognized benefit of the symbiosis to the host plant is greater access to soil phosphorus, the concentration of a number of other elements responded significantly to inoculation across the panel as a whole. In addition, variety-specific effects indicated the importance of plant genotype to the response. Clusters of elements were identified that varied in a co-ordinated manner across genotypes, and that were maintained between non inoculated and inoculated plants. PMID- 29016934 TI - microRNA-7 upregulates death receptor 5 and primes resistant brain tumors to caspase-mediated apoptosis. AB - Background: MicroRNAs (miRs) are known to play a pivotal role in tumorigenesis, controlling cell proliferation and apoptosis. In this study, we investigated the potential of miR-7 to prime resistant tumor cells to apoptosis in glioblastoma (GBM). Methods: We created constitutive and regulatable miR-7 expression vectors and utilized pharmacological inhibition of caspases and genetic loss of function to study the effect of forced expression of miR-7 on death receptor (DR) pathways in a cohort of GBM with established resistance to tumor necrosis factor apoptosis inducing ligand (TRAIL) and in patient-derived primary GBM stem cell (GSC) lines. We engineered adeno-associated virus (AAV)-miR-7 and stem cell (SC) releasing secretable (S)-TRAIL and utilized real time in vivo imaging and neuropathology to understand the effect of the combined treatment of AAV-miR-7 and SC-S-TRAIL in vitro and in mouse models of GBM from TRAIL-resistant GSC. Results: We show that expression of miR-7 in GBM cells results in downregulation of epidermal growth factor receptor and phosphorylated Akt and activation of nuclear factor-kappaB signaling. This leads to an upregulation of DR5, ultimately priming resistant GBM cells to DR-ligand, TRAIL-induced apoptotic cell death. In vivo, a single administration of AAV-miR-7 significantly decreases tumor volumes, upregulates DR5, and enables SC-delivered S-TRAIL to eradicate GBM xenografts generated from patient-derived TRAIL-resistant GSC, significantly improving survival of mice. Conclusions: This study identifies the unique role of miR-7 in linking cell proliferation to death pathways that can be targeted simultaneously to effectively eliminate GBM, thus presenting a promising strategy for treating GBM. PMID- 29016936 TI - Work-sharing and male employees' mental health during an economic recession. AB - Background: One approach to reducing occupational stress during an economic recession is to share work amongst employees. This may include reducing employees' working hours to avoid redundancies. Aims: To examine whether work sharing influenced the psychosocial work environment and depressive symptoms encountered by Japanese employees, and to determine which psychosocial factors predict employees' mental health during an economic recession. Methods: A survey was performed in a Japanese manufacturing company at the beginning (T1) and end (T2) of a 6-month period during the 2008 economic recession using the validated Job Content Questionnaire (JCQ) and Self-Rating Depression Scale (SDS). Results: Three hundred and thirty-six male employees completed the questionnaire. Twenty four per cent of participants showed depressive symptoms at T1. Despite reductions in employees' working hours and job strain (P < 0.001), SDS scores showed no change after 6 months. Logistic regression analyses showed that low social support between the two surveys was associated with depressive symptoms at T2 after adjusting for demographic, lifestyle, workplace factors, scheduled working hours and depressive symptoms at T1. Conclusions: Reductions in job strain did not affect employees' depressive symptoms. Employees with low social support during the study had a significantly higher risk of having depressive symptoms. These findings indicate that social and emotional support within the workplace is important during the work-sharing period. PMID- 29016937 TI - Screening for Insomnia: An Observational Study Examining Sleep Disturbances, Headache Characteristics, and Psychiatric Symptoms in Patients Visiting a Headache Center. AB - Objective: Effective treatments for insomnia exist, but few physicians treating headaches have routine methods for screening for insomnia. We sought to 1) describe the migraine characteristics and comorbid conditions that can affect sleep and 2) assess their relationships with positive screens on the Insomnia Severity Index (ISI). Methods: This is a retrospective cross-sectional study of the migraine and sleep characteristics of new patients in our headache center (August 15, 2015-October 28, 2015) who were suspected of having migraines based on the new patient intake questionnaire. The questionnaire included the ISI, questions about headache characteristics, and screens for psychiatric comorbidities. Two tailed t tests and analysis of variance evaluated relationships between headache characteristics, comorbidities, and ISI score. Results: A total of 61 new patients were suspected to have migraines. The mean number of headache days per month was 11.6. Only 41% of patients reported sleeping seven or more hours; 49.2% had an ISI of 15 or higher (positive screen). Regarding the insomnia scores, there were no differences between moderate and severe headache pain, between episodic and chronic headaches, and between the associated symptoms (nausea/vomiting, photophobia, phonophobia; P > 0.05). Musculoskeletal pain (18.7 vs 13.8, P = 0.027), depression (rho = 0.610), and general anxiety (rho = 0.436) were associated with higher ISI scores. Conclusions: Nearly half of the patients with suspected migraines in a headache center screened positive for insomnia, independent of whether they had episodic or chronic headaches. This would generate a substantial number of cognitive behavioral therapy for insomnia (CBT-I) referrals. Given the strong association between comorbid musculoskeletal pain, depression, anxiety, and insomnia, we suggest prioritizing CBT-I referral for those patients regardless of their headache frequency. PMID- 29016940 TI - Developing a tool for identifying high-risk employers for inspection. AB - Background: Workers' Compensation Board (WCB) data and other information are sometimes used to calculate an 'Occupational Health and Safety (OHS) index' as a way of identifying businesses considered 'high risk' to be inspected as part of enforcement work. However, no evidence on the validity of this index exists. Aims: To evaluate the performance of the Alberta OHS index, a 'score' based largely on WCB claims data, and to see if an index calculated using different information could perform better. Methods: Data from the Alberta Compliance Management Information System database, 2011-2015, and WCB claim database, 2007 2014, were retrieved. Issuing 'stop work' or 'stop use' orders in inspections was defined as a proxy of high-risk outcome. The performance of the current and a modified OHS index were assessed using receiver operating characteristics (ROC) and regression analyses. Results: In large employers, neither the current nor the modified OHS index was particularly effective in identifying 'high risk' employers with the area under the ROC curve (AROC) of 0.55 (95% confidence interval [CI] 0.52-0.57; P < 0.001) and 0.59 (95% CI 0.57-0.62; P < 0.001), respectively. In small employers, neither index seemed very effective with an AROC of 0.54 (95% CI 0.53-0.56; P < 0.001) and 0.55 (95% CI 0.53-0.56; P < 0.001), respectively. These results were consistent in subgroup analyses of assignments without specific initiatives, both in large and small employers. Conclusions: Neither the current nor a modified OHS index seemed to effectively identify high-risk employers. Heterogeneous results in large and small employers suggest that approaches to different-sized employers are appropriate. PMID- 29016939 TI - Molecular autopsy of sudden unexplained deaths reveals genetic predispositions for cardiac diseases among young forensic cases. AB - Aims: Coronary artery disease accounts for the majority of sudden cardiac deaths (SCD) in the older population whereas cardiomyopathies and arrhythmogenic abnormalities predominate in younger SCD victims (<35 years) with a significant genetic component. The elucidation of the pathogenetic cause of death might be relevant for the prevention of further deaths within affected families. Aim of this study was to determine the portion of underlying genetic heart diseases among unexplained putative SCD cases from a large German forensic department. Methods and results: We included 10 forensic cases of sudden unexplained death (SUD) victims aged 19-40 years, who died by SCD due to forensic autopsy. DNA was analysed by next generation panel sequencing of 174 candidate genes for channelopathies and cardiomyopathies. Cardiological examinations, genetic counselling, and subsequent genetic testing were offered to all affected families. We identified within 1 year 10 cases of SUD among 172 forensic cases. Evidence for a genetic disposition was found in 8 of 10 (80%) cases, with pathogenic mutations in 3 and variants of uncertain significance in 5 of SCD cases. Subsequent selective screening of family members revealed two additional mutation carriers. Conclusion: The study provides strong evidence that molecular genetics improves the post mortem diagnosis of fatal genetic heart diseases among SUD victims. Molecular genetics should be integrated in forensic and pathological routine practice. PMID- 29016938 TI - Preclinical investigation of combined gene-mediated cytotoxic immunotherapy and immune checkpoint blockade in glioblastoma. AB - Background: Combined immunotherapy approaches are promising cancer treatments. We evaluated anti-programmed cell death protein 1 (PD-1) treatment combined with gene-mediated cytotoxic immunotherapy (GMCI) performed by intratumoral injection of a prodrug metabolizing nonreplicating adenovirus (AdV-tk), providing in situ chemotherapy and immune stimulation. Methods: The effects of GMCI on PD ligand 1 (PD-L1) expression in glioblastoma were investigated in vitro and in vivo. The efficacy of the combination was investigated in 2 syngeneic mouse glioblastoma models (GL261 and CT-2A). Immune infiltrates were analyzed by flow cytometry. Results: GMCI upregulated PD-L1 expression in vitro and in vivo. Both GMCI and anti-PD-1 increased intratumoral T-cell infiltration. A higher percentage of long term survivors was observed in mice treated with combined GMCI/anti-PD-1 relative to single treatments. Long-term survivors were protected from tumor rechallenge, demonstrating durable memory antitumor immunity. GMCI led to elevated interferon gamma positive T cells and a lower proportion of exhausted double positive PD1+TIM+CD8+ T cells. GMCI also increased PD-L1 levels on tumor cells and infiltrating macrophages/microglia. Our data suggest that anti-PD-1 treatment improves the effectiveness of GMCI by overcoming interferon-induced PD-L1 mediated inhibitory signals, and GMCI improves anti-PD-1 efficacy by increasing tumor-infiltrating T-cell activation. Conclusions: Our data show that the GMCI/anti-PD-1 combination is well tolerated and effective in glioblastoma mouse models. These results support evaluation of this combination in glioblastoma patients. PMID- 29016941 TI - Perceived effect of deployment on families of UK military personnel. AB - Background: In the UK, little is known about the perceived effects of deployment, on military families, from military personnel in theatre. Aims: To investigate military personnel's perceptions of the impact of deployment on intimate relationships and children. Methods: Deployed service personnel who were in a relationship, and who had children, completed a survey while deployed on combat operations. Data were taken from four mental health surveys carried out in Iraq in 2009 and Afghanistan in 2010, 2011 and 2014. Results: Among 4265 participants, after adjusting for military and social-demographic covariates, perceiving that deployment had a negative impact on intimate relationships and children was associated with psychological distress, and traumatic stress symptoms. Military personnel who reported being in danger of being injured or killed during deployment, were more likely to report a perceived negative effect of deployment on their intimate relationships. Reservists were less likely to report a perceived negative impact of deployment on their children compared with regulars. Military personnel who themselves planned to separate from their partner were more likely to report psychological distress, and stressors at home. Perceived insufficient support from the Ministry of Defence was associated with poor mental health, and holding a junior rank. Conclusions: Deployed UK military personnel with symptoms of psychological distress, who experienced stressors at home, were especially likely to perceive that their family were inadequately supported by the military. Those planning to separate from their partner were at increased risk of suffering with mental health problems while deployed. PMID- 29016942 TI - BEN3/BIG2 ARF GEF is Involved in Brefeldin A-Sensitive Trafficking at the trans Golgi Network/Early Endosome in Arabidopsis thaliana. AB - Membrane traffic at the trans-Golgi network (TGN) is crucial for correctly distributing various membrane proteins to their destination. Polarly localized auxin efflux proteins, including PIN-FORMED1 (PIN1), are dynamically transported between the endosomes and the plasma membrane (PM) in the plant cells. The intracellular trafficking of PIN1 protein is sensitive to the fungal toxin brefeldin A (BFA), which is known to inhibit guanine nucleotide exchange factors for ADP ribosylation factors (ARF GEFs) such as GNOM. However, the molecular details of the BFA-sensitive trafficking pathway have not been fully revealed. In a previous study, we identified an Arabidopsis mutant BFA-visualized endocytic trafficking defective 3 (ben3) which exhibited reduced sensitivity to BFA in terms of BFA-induced intracellular PIN1 agglomeration. Here, we show that BEN3 encodes a member of BIG family ARF GEFs, BIG2. BEN3/BIG2 tagged with fluorescent proteins co-localized with markers for the TGN/early endosome (EE). Inspection of conditionally induced de novo synthesized PIN1 confirmed that its secretion to the PM is BFA sensitive, and established BEN3/BIG2 as a crucial component of this BFA action at the level of the TGN/EE. Furthermore, ben3 mutation alleviated BFA induced agglomeration of another TGN-localized ARF GEF, BEN1/MIN7. Taken together, our results suggest that BEN3/BIG2 is an ARF GEF component, which confers BFA sensitivity to the TGN/EE in Arabidopsis. PMID- 29016943 TI - Radiologic progression of glioblastoma under therapy-an exploratory analysis of AVAglio. AB - Background: In this exploratory analysis of AVAglio, a randomized phase III clinical study that investigated the addition of bevacizumab (Bev) to radiotherapy/temozolomide in newly diagnosed glioblastoma, we aim to radiologically characterize glioblastoma on therapy until progression and investigate whether the type of radiologic progression differs between treatment arms and is related to survival and molecular data. Methods: Five progression types (PTs) were categorized using an adapted algorithm according to MRI contrast enhancement behavior in T1- and T2-weighted images in 621 patients (Bev, n = 299; placebo, n = 322). Frequencies of PTs (designated as classic T1, cT1 relapse, T2 diffuse, T2 circumscribed, and primary nonresponder), time to progression (PFS), and overall survival (OS) were assessed within each treatment arm and compared with molecular subtypes and O6-methylguanine DNA methyltransferase (MGMT) promoter methylation status. Results: PT frequencies differed between the Bev and placebo arms, except for "T2 diffuse" (12.4% and 7.1%, respectively). PTs showed differences in PFS and OS; with "T2 diffuse" being associated with longest survival. Complete disappearance of contrast enhancement during treatment ("cT1 relapse") showed longer survival than only partial contrast enhancement decrease ("classic T1"). "T2 diffuse" was more commonly MGMT hypermethylated. Only weak correlations to molecular subtypes from primary tissue were detected. Conclusions: Progression of glioblastoma under therapy can be characterized radiologically. These radiologic phenotypes are influenced by treatment and develop differently over time with differential outcomes. Complete resolution of contrast enhancement during treatment is a favorable factor for outcome. PMID- 29016944 TI - Auxin Response Dynamics During Wild-Type and entire Flower Development in Tomato. AB - The plant hormone auxin is a major regulator of plant development and response to environmental cues. Auxin plays a particularly central role in flower development, but the knowledge of its role of flower development in crop plants with fleshy fruits, such as tomato, is still scarce. Mutations in the Aux/IAA gene ENTIRE/Indole Acetic Acid 9 (E/IAA9) lead to the precocious development of young gynoecia into parthenocarpic fruits. Here, we compared the distribution of the auxin response sensor DR5::VENUS and the auxin efflux transporter PIN1 between the wild type and entire during successive stages of flower and fruit development. Up-regulation of the DR5::VENUS signal in the shoot apical meristem (SAM) was observed upon the transition to flowering, implicating a possible role for auxin in the transition from a vegetative SAM into an inflorescence meristem. DR5::VENUS was expressed in all initiating floral organs. Additionally, DR5::VENUS was highly expressed during gametogenesis, in both male and female organs, and in the developing seeds during embryogenesis. DR5::VENUS is expressed in functional cell layers such as the anther stomium and tapetum, suggesting that auxin plays a role in flower organ development and function. The entire mutation affected DR5::VENUS expression patterns during inflorescence formation and flower organ development, which correlated with phenotypic alterations. We also show dynamic distribution and localization of the auxin transporter PIN1 during flower and fruit organ development. These results emphasize the dynamic auxin response in inflorescence and flower development and suggest multiple roles of auxin in these processes. PMID- 29016945 TI - FLUCTUATING-LIGHT-ACCLIMATION PROTEIN1, Conserved in Oxygenic Phototrophs, Regulates H+ Homeostasis and Non-Photochemical Quenching in Chloroplasts. AB - Plants have mechanisms allowing them to acclimate to intense light conditions, which involves the dissipation of excess light energy. These mechanisms allow plants to perform photosynthesis efficiently and, therefore, must be accurately and precisely controlled. However, how plants dissipate excess light energy has yet to be fully elucidated. Herein we report the identification of a gene, which we named Fluctuating-Light-Acclimation Protein1 (FLAP1), that is conserved in oxygenic phototrophs. We show that Arabidopsis FLAP1 is associated with chloroplast thylakoid and envelope membranes and that the flap1 mutant shows delayed non-photochemical quenching (NPQ) relaxation during induction of photosynthesis at moderate light intensity. Under fluctuating light conditions, NPQ levels in the flap1 mutant were higher than those in the wild type during the high light period, and the mutant exhibited a pale-green phenotype. These findings suggest that FLAP1 is involved in NPQ control, which is important for an acclimation response to fluctuating light. PMID- 29016946 TI - Dissecting Root Proteome Changes Reveals New Insight into Cadmium Stress Response in Radish (Raphanus sativus L.). AB - Cadmium (Cd) is a widespread heavy metal of particular concern with respect to the environment and human health. Although intensive studies have been conducted on Cd-exposed transcriptome profiling, little systematic proteome information is available on the molecular mechanism of Cd stress response in radish. In this study, the radish root proteome under Cd stress was investigated using a quantitative multiplexed proteomics approach. Seedlings were grown in nutrient solution without Cd (control) or with 10 or 50 MUM CdCl2 for 12 h (Cd10 and Cd50, respectively). In total, 91 up- and 66 down-regulated proteins were identified in the control vs Cd10 comparison, while 340 up- and 286 down-regulated proteins were identified in the control vs Cd50 comparison. Functional annotation indicated that these differentially expressed proteins (DEPs) were mainly involved in carbohydrate and energy metabolism, stress and defense and signal transduction processes. Correlation analysis showed that 33 DEPs matched with their transcripts, indicating a relatively low correlation between transcript and protein levels under Cd stress. Quantitative real-time PCR evidenced the expression patterns of 12 genes encoding their corresponding DEPs. In particular, several pivotal proteins associated with carbohydrate metabolism, ROS scavenging, cell transport and signal transduction were involved in the coordinated regulatory network of the Cd stress response in radish. Root exposure to Cd2+ activated several key signaling molecules and metal-containing transcription factors, and subsequently some Cd-responsive functional genes were mediated to reduce Cd toxicity and re-establish redox homeostasis in radish. This is a first report on comprehensive proteomic characterization of Cd-exposed root proteomes in radish. These findings could facilitate unraveling of the molecular mechanism underlying the Cd stress response in radish and provide fundamental insights into the development of genetically engineered low-Cd-content radish cultivars. PMID- 29016948 TI - Tertiary Care Clinical Experience with Intravenous Lidocaine Infusions for the Treatment of Chronic Pain. AB - Objective: To evaluate the safety of and long-term pain relief due to intravenous lidocaine infusion for the treatment of chronic pain in a tertiary pain management clinic. Design: Retrospective chart review. Methods: Medical records were reviewed from 233 adult chronic pain patients who underwent one to three lidocaine infusions. The initial lidocaine challenge consisted of 1,000 mg/h administered intravenously for up to 30 minutes until infusion was complete, full pain resolution, the patient requested to stop, side effects (SEs) became intolerable, and/or if there were any safety concerns. Subsequent infusions were tailored to patient response. Data reviewed included pain diagnosis, lidocaine dose, SEs, and duration of pain relief documented at a follow-up visit. Results: Patients primarily had neuropathic pain (80%), were 94% white, 58% were female, and there was an average pain duration of 7.9 years. SEs were usually mild and transient, including perioral tingling, dizziness, tinnitus, and nausea/vomiting, and they were uncommon after the initial infusion. Overall, 41% of patients showed long-lasting pain relief, with positive response to the initial infusion associated with receiving and benefitting from subsequent infusions. Benefit by pain diagnoses varied from 32% to 58%. Conclusions: Our retrospective study in a heterogeneous population with chronic pain suggests that intravenous lidocaine is a safe treatment. Data also suggest long-term pain relief in a significant proportion of patients. Additional study is important in order to delineate patient selection, determine optimal dosing and treatment frequency, assess pain reduction and duration, and treatment cost-effectiveness. PMID- 29016947 TI - Visual and semiquantitative 11C-methionine PET: an independent prognostic factor for survival of newly diagnosed and treatment-naive gliomas. AB - Background: Few data exist regarding the prognostic value of L-[S-methyl 11C]methionine (MET) PET for treatment-naive gliomas. Methods: A total of 160 glioma patients (89 men, 71 women; mean age: 45, range 18-84 y) underwent a MET PET prior to any therapy. The PET scans were evaluated visually and semiquantitatively by tumor-to-background (T/N) ratio thresholds chosen by analysis of receiver operating characteristics. Additionally, isocitrate dehydrogenase 1-R132H (IDH1-R132H) immunohistochemistry was performed. Survival analysis was done using Kaplan-Meier estimates and the Cox proportional hazards model. Results: Significantly shorter mean survival times (7.2 vs 8.6 y; P = 0.024) were seen in patients with amino acid avid gliomas (n = 137) compared with visually negative tumors (n = 33) in MET PET. T/N ratio thresholds of 2.1 and 3.5 were significantly associated with survival (10.3 vs 7 vs 4.3 y; P < 0.001). Mean survival differed significantly using the median T/N ratio of 2.4 as cutoff, independent of histopathology (P < 0.01; mean survival: 10.2 +/- 0.8 y vs 5.5 +/- 0.6 y). In the subgroup of 142 glioma patients characterized by IDH1-R132H status, METT/N ratio demonstrated a significant prognostic impact in IDH1-R132H wildtype astrocytomas and glioblastoma (P = 0.001). Additionally, multivariate testing revealed semiquantitative MET PET as an independent prognostic parameter for treatment-naive glioma patients without (P = 0.031) and with IDH1-R132H characterization of gliomas (P = 0.024; odds ratio 1.57). Conclusion: This retrospective analysis demonstrates the value of MET PET as a prognostic parameter on survival in treatment-naive glioma patients. PMID- 29016949 TI - The MIEL1 E3 Ubiquitin Ligase Negatively Regulates Cuticular Wax Biosynthesis in Arabidopsis Stems. PMID- 29016950 TI - Hypersensitivity to material and environmental burden as a possible cause of late complications of cardiac implantable electronic devices. AB - Aims: To evaluate whether patients with late complications of pacemakers or implantable cardioverter-defibrillators have hypersensitivity reactions to some of the materials used in generators or in electrodes, or to environmental metal burden. Methods and results: The cohort consisted of 20 men and 4 women (mean age: 62.3 +/- 17.2 years) who had a history of late complications of implanted devices. The control group involved 25 men and 8 women (mean age: 64.6 +/- 14.0 years) who had comparable devices, but no history of late complications. Lymphocyte transformation test was used to evaluate hypersensitivity to eight metal pollutants (antimony, manganese, mercury, molybdenum, nickel, platinum, tin, and titanium) selected by results of questionnaires on environmental burden, and by material analysis of generators and electrode surfaces. Exposures to metal pollutants were approximately the same in patients and in controls. Titanium alloy used in generators contained at least 99.32% of titanium and trace levels of other metals; higher levels of tin and platinum were detected in electrode surfaces. Hypersensitivity reactions to mercury and tin were significantly more frequent in patients than in controls (patients and controls: mercury: 68.2 and 31.1%, respectively; P = 0.022; tin: 25.0 and 3.2%, respectively; P = 0.035). In contrast, hypersensitivity to manganese was significantly more frequent in controls than in patients (patients and controls: 13.6 and 50.0%, respectively; P = 0.008). Conclusion: Our findings suggest a possible relation between hypersensitivity to metals used in implantable devices or to environmental metal burden and the occurrence of their late complications. PMID- 29016952 TI - Migraine Does Not Affect Pain Intensity Perception: A Cross-Sectional Study. AB - Objective: To explore perceived pain intensity (PPI) in three drug-naive patient groups characterized by homogeneous migraine phenotypes-migraine without aura without cutaneous allodynia (MwoA CA-), MwoA with ictal CA (MwoA CA+), and migraine with aura without cutaneous allodynia (MwA CA-)-compared with age- and sex-matched healthy controls (HCs). Methods: Using trigeminal heat stimulation (THS) at three different predefined intensities (41 degrees C, 51 degrees C, and 53 degrees C) performed by the contact heat-evoked potential stimulator (CHEPS), PPI was investigated in 34 patients with MwoA CA-, 30 patients with MwoA CA+, and 30 patients with MwA CA- compared with 30 age- and sex-matched HCs. The patients had never taken migraine-preventive drugs, and they were investigated during an interictal period to avoid confounds associated with migraine attack. Secondary analyses evaluated associations between PPI and clinical features of migraine in patients. Results: No significant differences were observed between the four groups for each experimentally induced stimulus. Moreover, no significant correlations were found between clinical variables and the PPI of the THS at any level of experimental stimulus. Conclusions: Despite the converging evidence of pain threshold abnormalities in migraine patients, our findings suggest that migraine patients did not exhibit differences in the PPI of THS when compared with HCs, independent of phenotype and migraine severity, as well as somatic, psychiatric, or pharmacological interferences. This may depend on both the nature of the pain stimulus experienced and the involvement of selective regions or specific pain processing pathways. PMID- 29016951 TI - Compliance with Opioid Therapy: Distinguishing Clinical Characteristics and Demographics Among Patients with Cancer Pain. AB - Background: Because an increase of patients who misuse opioids has been identified in our cancer clinical setting through urine drug testing (UDT) and the Screener and Opioid Assessment for Patient's with Pain-Short Form (SOAPP-SF), we conducted this retrospective cohort study to identify patient characteristics that are associated with UDT that indicates noncompliance. Methods: Over a two year period, 167 of 8,727 patients (2.4%) seen in the pain clinic and who underwent UDT were evaluated to determine compliance with prescribed opioid regimens. Descriptive clinical and demographic data were collected, and group differences based on compliance with opioid therapy were evaluated. Results: Fifty-eight percent of the patients were noncompliant with their prescribed opioid therapy. Noncompliant patients were younger than compliant patients, with a median age of 46 vs 49 years (P = 0.0408). Noncompliant patients were more likely to have higher morphine equivalent daily doses; however, the difference was not statistically significant. Patients with a history of alcohol (ETOH) (P = 0.0332), illicit drug use (P = 0.1014), and smoking (P = 0.4184) were more likely noncompliant. Univariate regression analysis showed that a history of ETOH use (P = 0.034), a history of anxiety (P = 0.027), younger age (P = 0.07), and a SOAPP SF score of 4 or higher (P = 0.05) were associated with an abnormal UDT. Conclusions: History of ETOH use, anxiety, high SOAPP-SF score, and younger age were associated with UDT that indicates noncompliance. Given the very small percentage of UDT testing, it is quite likely that a significant number of patients who did not undergo UDT were also nonadherent with treatment recommendations. PMID- 29016953 TI - Sleep problems among Chinese clinical nurses working in general hospitals. AB - Background: Epidemiological data evaluating sleep problems in clinical nurses in mainland China are scarce and an association between sleep problems and occupational stress has not been investigated. Aims: To assess the prevalence of sleep problems and associated factors and determine their association with occupational stress among clinical nurses in general hospitals. Methods: Nurses were selected through random cluster sampling. They answered a self-administered questionnaire, which included sociodemographic and occupational variables, the Pittsburgh Sleep Quality Index (PSQI) scoring system and the Job Content Questionnaire for evaluating occupational stress. Logistic regression analysis was used to evaluate factors associated with sleep problems. Results: There were 5012 participants. Mean PSQI score of 4951 subjects included in the final analysis was 7.32 +/- 3.24, with 2713 subjects having PSQI >=8, accounting for 55% of participants. Female subjects in the intensive care unit and emergency departments were at higher risk of sleep problems. The following factors also presented a risk for sleep problems: multiple years of service, high monthly night shift frequency, primary and intermediate professional status, temporary employment status and high occupational stressors (including high psychological job demands, low job control and low workplace's social support). Conclusions: The overall prevalence rate of sleep problems among clinical nurses in general hospitals in mainland China was high. Many factors could affect the sleep quality of nurses, although occupational stress facilitates development of sleep problems. Various risk factors associated with sleep problems among nurses should be studied extensively and measures for relieving occupational stress should be undertaken. PMID- 29016954 TI - Association of Interleukin-6 and Other Cytokines with Self-Reported Pain in Prostate Cancer Patients Receiving Chemotherapy. AB - Background: Pain is a common and dose-limiting side effect of many potentially curative cancer chemotherapeutic agents. This chemotherapy-induced pain (CIP) affects the quality of life of cancer patients and survivors and hampers the optimal clinical management of chemotherapy in cancer patients. The underlying mechanisms remain largely unknown, but changes in levels of cytokines/chemokines may contribute to the pathophysiology of CIP. Objective: This retrospective study was aimed at examining whether plasma levels of various cytokines change in prostate cancer patients after chemotherapy treatment and whether such changes (if any) are associated with their pain intensity. Methods: Using a Luminex assay, plasma levels of 27 cytokines/chemokines were measured in 78 men: 30 patients with metastatic prostate cancer who received chemotherapy (Docetaxel, 75 mg/m2 intravenously), 29 untreated patients with nonmetastatic prostate cancer, and 19 healthy controls. Subjective pain was assessed in chemotherapy-treated cancer patients using the 11-point numeric rating scale (NRS) pain scores. Results: Chemotherapy-treated patients with pain (NRS >= 3) exhibited significantly increased levels of the pro-inflammatory cytokines (IL-6, IL-8) and chemokines (Eotaxin, VEGF, and IP-10) compared with untreated cancer patients or with patients without pain (NRS = 0). Of the 27 cytokines examined, only IL-6 was positively correlated with pain intensity in the chemotherapy-treated patients with pain. Conclusions: These findings suggest that the cytokines, particularly IL-6, whose levels were elevated in the chemotherapy-treated patients may be involved in the pathophysiology of CIP, and that they might be potential new targets for pain control in cancer patients receiving chemotherapy. PMID- 29016955 TI - Is a History of Severe Episodic Low Back Pain an Indicator of a Discogenic Etiology? AB - Objective: To determine if a history of severe episodic low back pain (LBP) correlates with positive discography. Methods: A retrospective chart review identified patients undergoing discography from January 2012 through February 2016. The review determined if the patient's LBP began or continued with severe disabling episodes (lasting a minimum of two days). A gradual onset or initiating event with continuous symptoms was considered a nonepisodic history. Patients were excluded for unclear record, workers' compensation, litigation, prior lumbar surgery, radiologic instability, or indeterminate discography. Results: Seventy eight patients underwent discography. Thirty-nine patients were included, 31 of which had positive discograms. Eight had negative discograms. Nineteen patients had a history of episodic LBP, and 20 had no history of episodic LBP. Of those 19 with a history of episodic LBP, 18 had positive discography and one had negative discography. Of those with no history of episodic LBP, 13 had positive discography and seven had negative discography. Using the historical finding of severe episodic LBP as a test for discogenic source of LBP, the sensitivity is 58% (95% confidence interval [CI] = 41-75%) and the specificity is 88% (95% CI = 65-100%). The likelihood ratio is 4.7 (95% CI = 0.72-30). The positive predictive value (PPV) is 95% (95% CI = 72-100%). The PPV is based upon a prevalence of 79% (discogram positive) in our sample of patients considering fusion surgery. The diagnostic confidence odds are 18.2, with a diagnostic confidence of 95%. Conclusions: A positive history of severe episodic LBP may be a strong indicator for a discogenic etiology. PMID- 29016956 TI - Chickpea WRKY70 Regulates the Expression of a Homeodomain-Leucine Zipper (HD-Zip) I Transcription Factor CaHDZ12, which Confers Abiotic Stress Tolerance in Transgenic Tobacco and Chickpea. AB - Drought and salinity are the two major environmental constraints that severely affect global agricultural productivity. Plant-specific HD-Zip transcription factors are involved in plant growth, development and stress responses. In the present study, we explored the functional characteristics and regulation of a novel HD-Zip (I) gene from chickpea, CaHDZ12, in response to water-deficit and salt-stress conditions. Transgenic tobacco lines over-expressing CaHDZ12 exhibited improved tolerance to osmotic stresses and increased sensitivity to abscisic acid (ABA). Physiological compatibility of transgenic lines was found to be more robust compared to the wild-type plants under drought and salinity stress. Additionally, expression of several stress-responsive genes was significantly induced in CaHDZ12 transgenic plants. On the other hand, silencing of CaHDZ12 in chickpea resulted in increased sensitivity to salt and drought stresses. Analysis of different promoter deletion mutants identified CaWRKY70 transcription factor as a transcriptional regulator of CaHDZ12 expression. In vivo and in vitro interaction studies detected an association between CaWRKY70 and CaHDZ12 promoter during stress responses. Epigenetic modifications underlying histone acetylation at the CaHDZ12 promoter region play a significant role in stress-induced activation of this gene. Collectively, our study describes a crucial and unique mechanistic link between two distinct transcription factors in regulating plant adaptive stress response. PMID- 29016957 TI - Case-specific colleague guidance for general practitioners' management of sickness absence. AB - Background: General practitioners (GPs) report sickness absence certification as challenging. They express need for support with functional assessment beyond guidelines and reforms. Case-specific collegial one-to-one guidance for other clinical topics has proved popular with GPs and may be an acceptable and effective way to improve GPs skills and competence in sickness absence certification. Aims: To present a new model of case-specific colleague guidance focusing on the management of long-term sickness absence and to describe its feasibility in terms of application and reception among GPs, and also GPs' self reports of effects on their practice. Methods: Randomly selected GPs received case-specific collegial guidance over a 12-month period, in two Norwegian trials, delivered by former GPs employed by the social security administration. We measured reception and perceived effects by GPs' self-report and registered participation and withdrawal rates. Results: The participation rate (n = 165) was 94%, and no GPs withdrew during training. Among the 116 GPs responding to the survey (70%), 112 (97%; 95% CI 92-99) stated they would recommend it to their colleagues. Considerable benefit from the guidance was reported by 68 (59%; 95% CI 50-68). The GPs self-reported other effects on their sickness absence certification, specifically an increased use of part-time sickness absence (Fit Note equivalent). Conclusions: This model of case-specific colleague guidance to aid GPs' management of long-term sickness absence is feasible and was popular. This type of guidance was perceived by GPs to be somewhat beneficial and to alter their sickness absence certification behaviour, though the true impact requires further testing in controlled trials. PMID- 29016958 TI - Increased Central Nervous System Interleukin-8 in a Majority Postlaminectomy Syndrome Chronic Pain Population. AB - Background and Objectives: Multiple processes have been identified as potential contributors to chronic pain, with increasing evidence illustrating an association with aberrant levels of neuroimmune mediators. The primary objectives of the present study were to examine central nervous system cytokines, chemokines, and growth factors present in a chronic pain population and to explore patterns of the same mediator molecules over time. Secondary objectives explored the relationship of central and peripheral neuroimmune mediators while examining the levels of anxiety, depression, sleep quality, and perception of pain associated with the chronic pain patient experience. Methods: Cerebrospinal fluid (CSF) from a population of majority postlaminectomy syndrome patients (N = 8) was compared with control CSF samples (N = 30) to assess for significant differences in 10 cytokines, chemokines, and growth factors. The patient population was then followed over time, analyzing CSF, plasma, and psychobehavioral measures. Results: The present observational study is the first to demonstrate increased mean CSF levels of interleukin-8 (IL-8; P < 0.001) in a small population of majority postlaminectomy syndrome patients, as compared with a control population. Over time in pain patients, CSF levels of IL-8 increased significantly (P < 0.001). Conclusions: These data indicate that IL-8 should be further investigated and psychobehavioral components considered in the overall chronic pain paradigm. Future studies examining the interactions between these factors and IL-8 may identify novel targets for treatment of persistent pain states. PMID- 29016959 TI - Low-Boron Tolerance Strategies Involving Pectin-Mediated Cell Wall Mechanical Properties in Brassica napus. AB - Boron (B) is an essential micronutrient for the growth and development of plants. Oilseed rape (Brassica napus L.) is a staple oleaginous crop, which is greatly susceptible to B deficiency. Significant differences in tolerance of low-B stresses are observed in rapeseed genotypes, but the underlying mechanism remains unclear, particularly at the single-cell level. Here we provide novel insights into pectin-mediated cell wall (CW) mechanical properties implicated in the differential tolerance of low B in rapeseed genotypes. Under B deficiency, suspension cells of the low-B-sensitive genotype 'W10' showed more severely deformed morphology, lower viabilities and a more easily ruptured CW than those of the low-B-tolerant genotype 'QY10'. Cell rupture was attributed to the weakened CW mechanical strength detected by atomic force microscopy; the CW mechanical strength of 'QY10' was reduced by 13.6 and 17.4%, whereas that of 'W10' was reduced by 29.0 and 30.4% under 0.25 and 0.10 MUM B conditions, respectively. The mechanical strength differences between 'QY10' and 'W10' were diminished after the removal of pectin. Further, 'W10' exhibited significantly higher pectin concentrations with much more rhamnogalacturonan II (RG-II) monomer, and also presented obviously higher mRNA abundances of pectin biosynthesis-related genes than 'QY10' under B deficiency. CW regeneration was more difficult for protoplasts of 'W10' than for those of 'QY10'. Taking the results together, we conclude that the variations in pectin-endowed CW mechanical properties play key roles in modulating the differential genotypic tolerance of rapeseed to low-B stresses at both the single-cell and the plant level, and this can potentially be used as a selection trait for low-B-tolerant rapeseed breeding. PMID- 29016960 TI - Validation of the HCM Risk-SCD model in patients with hypertrophic cardiomyopathy following alcohol septal ablation. AB - Aims: The HCM Risk-SCD model for prediction of sudden cardiac death (SCD) in hypertrophic cardiomyopathy recommended by the 2014 European Society of Cardiology (ESC) guidelines has not been validated after septal reduction therapy. The aim of this study was to validate the HCM Risk-SCD model in patients undergoing alcohol septal ablation (ASA) and to compare its performance to previous models. Methods and result: A total of 844 ASA patients without prior SCD event were included. The primary endpoint was a composite of SCD and appropriate implantable cardioverter defibrillator (ICD) therapy, identical to the HCM Risk-SCD endpoint. A distinction between periprocedural (<=30 days) and long-term (>30 days) SCD was made to discern procedure-related adverse arrhythmic events caused by the ASA-induced myocardial infarction from long-term SCD risk. Twenty patients reached the SCD endpoint within the first 30 days. During a follow-up of 6.5 +/- 4.2 years, another 46 patients reached the SCD endpoint. The predicted 5-year SCD risk according to the HCM Risk-SCD model was 5.1%, and the observed 5-year SCD risk was 4.0%. The C-statistics for the use of the HCM Risk SCD model was 0.61 (P = 0.02), the C-statistics for the use of the 2003 American College of Cardiology/ESC guidelines was 0.59 (P = 0.051), and the C-statistic for the use of the 2011 American College of Cardiology Foundation/American Heart Association guidelines was 0.58 (P = 0.054). Maximal left ventricular wall thickness, syncope after ASA, and fulfilling the 2014 ESC recommendations for primary ICD implantation according to the HCM Risk-SCD model, respectively, predicted SCD during long-term follow-up. Conclusion: The HCM Risk-SCD model can be used for SCD prediction in patients undergoing ASA. PMID- 29016961 TI - Apple RING E3 ligase MdMIEL1 inhibits anthocyanin accumulation by ubiquitinating and degrading MdMYB1 protein. AB - MdMYB1 is an important regulator for anthocyanin accumulation in apple (Malus * domestica). Here, an apple RING E3 ligase, MdMIEL1, was screened out as a partner of MdMYB1 with a yeast two-hybrid approach. Pull-down, bimolecular fluorescence complementation and coimmunoprecipitation assays further verified the interaction between MdMIEL1 and MdMYB1 proteins. Subsequently, in vitro and in vivo experiments indicated that MdMIEL1 functioned as a ubiquitin E3 ligase to ubiquitinate MdMYB1 protein, followed by degradation through a 26S proteasome pathway. Furthermore, transgenic studies in apple calli and Arabidopsis demonstrated that MdMIEL1 negatively regulated anthocyanin accumulation by modulating the degradation of MdMYB1 protein. Taken together, our findings provide a new insight into the molecular mechanism by which MdMIEL1 negatively regulates anthocyanin biosynthesis by ubiquitinating and degrading MdMYB1 protein. PMID- 29016962 TI - An Apple Protein Kinase MdSnRK1.1 Interacts with MdCAIP1 to Regulate ABA Sensitivity. AB - ABA is a crucial phytohormone for development and stress responses in plants. Snf1-related protein kinase 1.1 (SnRK1.1) is involved in the ABA response. However, the molecular mechanism underlying the SnRK1.1 response to ABA is largely unknown. Here, it was found that overexpression of the apple MdSnRK1.1 gene enhanced ABA sensitivity in both transgenic apple calli and Arabidopsis seedlings. Subsequently, a yeast two-hybrid screen demonstrated that MdCAIP1 (C2 domain ABA Insensitive Protein1) interacted with MdSnRK1.1. Their interaction was further confirmed by pull-down and co-immunoprecipitation assays. Expression of the MdCAIP1 gene was positively induced by ABA. Its overexpression enhanced ABA sensitivity in transgenic apple calli. Furthermore, it was found that MdSnRK1.1 phosphorylated the MdCAIP1 protein in vivo and promoted its degradation in vitro and in vivo. As a result, MdSnRK1.1 inhibited MdCAIP1-mediated ABA sensitivity, and MdCAIP1 partially reduced MdSnRK1.1-mediated ABA sensitivity. Our findings indicate that MdSnRK1.1 plays an important role in the ABA response, partially by controlling the stability of the MdCAIP1 protein. PMID- 29016963 TI - Risks and Benefits of Ceasing or Continuing Anticoagulant Medication for Image Guided Procedures for Spine Pain: A Systematic Review. AB - Objective: To determine the risks of continuing or ceasing anticoagulant or antiplatelet medications prior to image-guided procedures for spine pain. Design: Systematic review of the literature with comprehensive analysis of the published data. Interventions: Following a search of the literature for studies pertaining to spine pain interventions in patients on anticoagulant medication, seven reviewers appraised the studies identified and assessed the quality of evidence presented. Outcome Measures: Evidence was sought regarding risks associated with either continuing or ceasing anticoagulant and antiplatelet medication in patients having image-guided interventional spine procedures. The evidence was evaluated in accordance with the Grades of Recommendation, Assessment, Development, and Evaluation system. Results: From a source of 120 potentially relevant articles, 14 provided applicable evidence. Procedures involving interlaminar access carry a nonzero risk of hemorrhagic complications, regardless of whether anticoagulants are ceased or continued. For other procedures, hemorrhagic complications have not been reported, and case series indicate that they are safe when performed in patients who continue anticoagulants. Three articles reported the adverse effects of ceasing anticoagulants, with serious consequences, including death. Conclusions: Other than for interlaminar procedures, the evidence does not support the view that anticoagulant and antiplatelet medication must be ceased before image-guided spine pain procedures. Meanwhile, the evidence shows that ceasing anticoagulants carries a risk of serious consequences, including death. Guidelines on the use of anticoagulants should reflect these opposing bodies of evidence. PMID- 29016964 TI - Light Quality Affects Chloroplast Electron Transport Rates Estimated from Chl Fluorescence Measurements. AB - Chl fluorescence has been used widely to calculate photosynthetic electron transport rates. Portable photosynthesis instruments allow for combined measurements of gas exchange and Chl fluorescence. We analyzed the influence of spectral quality of actinic light on Chl fluorescence and the calculated electron transport rate, and compared this with photosynthetic rates measured by gas exchange in the absence of photorespiration. In blue actinic light, the electron transport rate calculated from Chl fluorescence overestimated the true rate by nearly a factor of two, whereas there was closer agreement under red light. This was consistent with the prediction made with a multilayer leaf model using profiles of light absorption and photosynthetic capacity. Caution is needed when interpreting combined measurements of Chl fluorescence and gas exchange, such as the calculation of CO2 partial pressure in leaf chloroplasts. PMID- 29016966 TI - Review of Factors, Methods, and Outcome Definition in Designing Opioid Abuse Predictive Models. AB - Objective: Several opioid risk assessment tools are available to prescribers to evaluate opioid analgesic abuse among chronic patients. The objectives of this study are to 1) identify variables available in the literature to predict opioid abuse; 2) explore and compare methods (population, database, and analysis) used to develop statistical models that predict opioid abuse; and 3) understand how outcomes were defined in each statistical model predicting opioid abuse. Design: The OVID database was searched for this study. The search was limited to articles written in English and published from January 1990 to April 2016. This search generated 1,409 articles. Only seven studies and nine models met our inclusion exclusion criteria. Results: We found nine models and identified 75 distinct variables. Three studies used administrative claims data, and four studies used electronic health record data. The majority, four out of seven articles (six out of nine models), were primarily dependent on the presence or absence of opioid abuse or dependence (ICD-9 diagnosis code) to define opioid abuse. However, two articles used a predefined list of opioid-related aberrant behaviors. Conclusions: We identified variables used to predict opioid abuse from electronic health records and administrative data. Medication variables are the recurrent variables in the articles reviewed (33 variables). Age and gender are the most consistent demographic variables in predicting opioid abuse. Overall, there is similarity in the sampling method and inclusion/exclusion criteria (age, number of prescriptions, follow-up period, and data analysis methods). Intuitive research to utilize unstructured data may increase opioid abuse models' accuracy. PMID- 29016965 TI - TaPUB1, a Putative E3 Ligase Gene from Wheat, Enhances Salt Stress Tolerance in Transgenic Nicotiana benthamiana. AB - High salinity is one of the most severe environmental stresses and limits the growth and yield of diverse crop plants. We isolated a gene named TaPUB1 from wheat (Triticum aestivum L. cv HF9703) that encodes a novel protein containing a U-box domain, the precursor RNA processing 19p (Prp19) superfamily and WD-40 repeats. Real-time reverse transcription-PCR analysis showed that TaPUB1 transcript accumulation was up-regulated by high salinity, drought and phytohormones, suggesting that it plays a role in the abiotic-related defense response. We overexpressed TaPUB1 in Nicotiana benthamiana to evaluate the function of TaPUB1 in the regulation of the salt stress response. Transgenic N. benthamiana plants (OE) with constitutively overexpressed TaPUB1 under the control of the Cauliflower mosaic virus 35S (CaMV 35S) promoter exhibited a higher germination rate, less growth inhibition, less Chl loss and higher photosynthetic capacity than wild-type (WT) plants under salt stress conditions. These results demonstrated the increased tolerance of OE plants to salt stress compared with the WT. The OE plants had lower osmotic potential (OP), reduced Na+ toxicity and less reactive oxygen species accumulation compared with the WT, which may be related to their higher level of osmolytes, lower Na+/K+ ratio and higher antioxidant enzyme activities under salt stress conditions. Consistent with these results, the up-regulated expression of osmic- and antioxidant-related genes in OE plants indicated a role for TaPUB1 in plant salt tolerance. PMID- 29016967 TI - Automatable algorithms to identify nonmedical opioid use using electronic data: a systematic review. AB - Objective: Improved methods to identify nonmedical opioid use can help direct health care resources to individuals who need them. Automated algorithms that use large databases of electronic health care claims or records for surveillance are a potential means to achieve this goal. In this systematic review, we reviewed the utility, attempts at validation, and application of such algorithms to detect nonmedical opioid use. Materials and Methods: We searched PubMed and Embase for articles describing automatable algorithms that used electronic health care claims or records to identify patients or prescribers with likely nonmedical opioid use. We assessed algorithm development, validation, and performance characteristics and the settings where they were applied. Study variability precluded a meta-analysis. Results: Of 15 included algorithms, 10 targeted patients, 2 targeted providers, 2 targeted both, and 1 identified medications with high abuse potential. Most patient-focused algorithms (67%) used prescription drug claims and/or medical claims, with diagnosis codes of substance abuse and/or dependence as the reference standard. Eleven algorithms were developed via regression modeling. Four used natural language processing, data mining, audit analysis, or factor analysis. Discussion: Automated algorithms can facilitate population-level surveillance. However, there is no true gold standard for determining nonmedical opioid use. Users must recognize the implications of identifying false positives and, conversely, false negatives. Few algorithms have been applied in real-world settings. Conclusion: Automated algorithms may facilitate identification of patients and/or providers most likely to need more intensive screening and/or intervention for nonmedical opioid use. Additional implementation research in real-world settings would clarify their utility. PMID- 29016968 TI - Formalizing drug indications on the road to therapeutic intent. AB - Therapeutic intent, the reason behind the choice of a therapy and the context in which a given approach should be used, is an important aspect of medical practice. There are unmet needs with respect to current electronic mapping of drug indications. For example, the active ingredient sildenafil has 2 distinct indications, which differ solely on dosage strength. In progressing toward a practice of precision medicine, there is a need to capture and structure therapeutic intent for computational reuse, thus enabling more sophisticated decision-support tools and a possible mechanism for computer-aided drug repurposing. The indications for drugs, such as those expressed in the Structured Product Labels approved by the US Food and Drug Administration, appears to be a tractable area for developing an application ontology of therapeutic intent. PMID- 29016969 TI - Implementation of a scalable, web-based, automated clinical decision support risk prediction tool for chronic kidney disease using C-CDA and application programming interfaces. AB - Background and Objective: Clinical decision support tools for risk prediction are readily available, but typically require workflow interruptions and manual data entry so are rarely used. Due to new data interoperability standards for electronic health records (EHRs), other options are available. As a clinical case study, we sought to build a scalable, web-based system that would automate calculation of kidney failure risk and display clinical decision support to users in primary care practices. Materials and Methods: We developed a single-page application, web server, database, and application programming interface to calculate and display kidney failure risk. Data were extracted from the EHR using the Consolidated Clinical Document Architecture interoperability standard for Continuity of Care Documents (CCDs). EHR users were presented with a noninterruptive alert on the patient's summary screen and a hyperlink to details and recommendations provided through a web application. Clinic schedules and CCDs were retrieved using existing application programming interfaces to the EHR, and we provided a clinical decision support hyperlink to the EHR as a service. Results: We debugged a series of terminology and technical issues. The application was validated with data from 255 patients and subsequently deployed to 10 primary care clinics where, over the course of 1 year, 569 533 CCD documents were processed. Conclusions: We validated the use of interoperable documents and open-source components to develop a low-cost tool for automated clinical decision support. Since Consolidated Clinical Document Architecture based data extraction extends to any certified EHR, this demonstrates a successful modular approach to clinical decision support. PMID- 29016971 TI - Efficiency and safety of speech recognition for documentation in the electronic health record. AB - Objective: To compare the efficiency and safety of using speech recognition (SR) assisted clinical documentation within an electronic health record (EHR) system with use of keyboard and mouse (KBM). Methods: Thirty-five emergency department clinicians undertook randomly allocated clinical documentation tasks using KBM or SR on a commercial EHR system. Tasks were simple or complex, and with or without interruption. Outcome measures included task completion times and observed errors. Errors were classed by their potential for patient harm. Error causes were classified as due to IT system/system integration, user interaction, comprehension, or as typographical. User-related errors could be by either omission or commission. Results: Mean task completion times were 18.11% slower overall when using SR compared to KBM (P = .001), 16.95% slower for simple tasks (P = .050), and 18.40% slower for complex tasks (P = .009). Increased errors were observed with use of SR (KBM 32, SR 138) for both simple (KBM 9, SR 75; P < 0.001) and complex (KBM 23, SR 63; P < 0.001) tasks. Interruptions did not significantly affect task completion times or error rates for either modality. Discussion: For clinical documentation, SR was slower and increased the risk of documentation errors, including errors with the potential to cause clinical harm compared to KBM. Some of the observed increase in errors may be due to suboptimal SR to EHR integration and workflow. Conclusion: Use of SR to drive interactive clinical documentation in the EHR requires careful evaluation. Current generation implementations may require significant development before they are safe and effective. Improving system integration and workflow, as well as SR accuracy and user-focused error correction strategies, may improve SR performance. PMID- 29016970 TI - A genome-by-environment interaction classifier for precision medicine: personal transcriptome response to rhinovirus identifies children prone to asthma exacerbations. AB - Objective: To introduce a disease prognosis framework enabled by a robust classification scheme derived from patient-specific transcriptomic response to stimulation. Materials and Methods: Within an illustrative case study to predict asthma exacerbation, we designed a stimulation assay that reveals individualized transcriptomic response to human rhinovirus. Gene expression from peripheral blood mononuclear cells was quantified from 23 pediatric asthmatic patients and stimulated in vitro with human rhinovirus. Responses were obtained via the single subject gene set testing methodology "N-of-1-pathways." The classifier was trained on a related independent training dataset (n = 19). Novel visualizations of personal transcriptomic responses are provided. Results: Of the 23 pediatric asthmatic patients, 12 experienced recurrent exacerbations. Our classifier, using individualized responses and trained on an independent dataset, obtained 74% accuracy (area under the receiver operating curve of 71%; 2-sided P = .039). Conventional classifiers using messenger RNA (mRNA) expression within the viral exposed samples were unsuccessful (all patients predicted to have recurrent exacerbations; accuracy of 52%). Discussion: Prognosis based on single time point, static mRNA expression alone neglects the importance of dynamic genome-by environment interplay in phenotypic presentation. Individualized transcriptomic response quantified at the pathway (gene sets) level reveals interpretable signals related to clinical outcomes. Conclusion: The proposed framework provides an innovative approach to precision medicine. We show that quantifying personal pathway-level transcriptomic response to a disease-relevant environmental challenge predicts disease progression. This genome-by-environment interaction assay offers a noninvasive opportunity to translate omics data to clinical practice by improving the ability to predict disease exacerbation and increasing the potential to produce more effective treatment decisions. PMID- 29016973 TI - Electronic health record adoption in US hospitals: the emergence of a digital "advanced use" divide. AB - Objective: While most hospitals have adopted electronic health records (EHRs), we know little about whether hospitals use EHRs in advanced ways that are critical to improving outcomes, and whether hospitals with fewer resources - small, rural, safety-net - are keeping up. Materials and Methods: Using 2008-2015 American Hospital Association Information Technology Supplement survey data, we measured "basic" and "comprehensive" EHR adoption among hospitals to provide the latest national numbers. We then used new supplement questions to assess advanced use of EHRs and EHR data for performance measurement and patient engagement functions. To assess a digital "advanced use" divide, we ran logistic regression models to identify hospital characteristics associated with high adoption in each advanced use domain. Results: We found that 80.5% of hospitals adopted at least a basic EHR system, a 5.3 percentage point increase from 2014. Only 37.5% of hospitals adopted at least 8 (of 10) EHR data for performance measurement functions, and 41.7% of hospitals adopted at least 8 (of 10) patient engagement functions. Critical access hospitals were less likely to have adopted at least 8 performance measurement functions (odds ratio [OR] = 0.58; P < .001) and at least 8 patient engagement functions (OR = 0.68; P = 0.02). Discussion: While the Health Information Technology for Economic and Clinical Health Act resulted in widespread hospital EHR adoption, use of advanced EHR functions lags and a digital divide appears to be emerging, with critical-access hospitals in particular lagging behind. This is concerning, because EHR-enabled performance measurement and patient engagement are key contributors to improving hospital performance. Conclusion: Hospital EHR adoption is widespread and many hospitals are using EHRs to support performance measurement and patient engagement. However, this is not happening across all hospitals. PMID- 29016972 TI - Biases introduced by filtering electronic health records for patients with "complete data". AB - Objective: One promise of nationwide adoption of electronic health records (EHRs) is the availability of data for large-scale clinical research studies. However, because the same patient could be treated at multiple health care institutions, data from only a single site might not contain the complete medical history for that patient, meaning that critical events could be missing. In this study, we evaluate how simple heuristic checks for data "completeness" affect the number of patients in the resulting cohort and introduce potential biases. Materials and Methods: We began with a set of 16 filters that check for the presence of demographics, laboratory tests, and other types of data, and then systematically applied all 216 possible combinations of these filters to the EHR data for 12 million patients at 7 health care systems and a separate payor claims database of 7 million members. Results: EHR data showed considerable variability in data completeness across sites and high correlation between data types. For example, the fraction of patients with diagnoses increased from 35.0% in all patients to 90.9% in those with at least 1 medication. An unrelated claims dataset independently showed that most filters select members who are older and more likely female and can eliminate large portions of the population whose data are actually complete. Discussion and Conclusion: As investigators design studies, they need to balance their confidence in the completeness of the data with the effects of placing requirements on the data on the resulting patient cohort. PMID- 29016975 TI - JAMIA is going green. PMID- 29016974 TI - Blockchain distributed ledger technologies for biomedical and health care applications. AB - Objectives: To introduce blockchain technologies, including their benefits, pitfalls, and the latest applications, to the biomedical and health care domains. Target Audience: Biomedical and health care informatics researchers who would like to learn about blockchain technologies and their applications in the biomedical/health care domains. Scope: The covered topics include: (1) introduction to the famous Bitcoin crypto-currency and the underlying blockchain technology; (2) features of blockchain; (3) review of alternative blockchain technologies; (4) emerging nonfinancial distributed ledger technologies and applications; (5) benefits of blockchain for biomedical/health care applications when compared to traditional distributed databases; (6) overview of the latest biomedical/health care applications of blockchain technologies; and (7) discussion of the potential challenges and proposed solutions of adopting blockchain technologies in biomedical/health care domains. PMID- 29016976 TI - A description of familial clustering of meningiomas in the Utah population. AB - Background: Meningiomas are common intracranial tumors in adults, yet the genetics and cause of sporadic meningiomas are not well understood. Few familial clusters have been reported. The aim of this study was to investigate the familiality of meningiomas within the Utah Population Database. Methods: Meningioma cases reported in the Utah Cancer Registry were identified. Relative risk of their relatives was calculated. All possible cases were assessed with the Genealogical Index of Familiality (GIF), which measures average pairwise relatedness of all possible pairs using the Malecot coefficient of kinship. Clusters of cases descending from a common ancestor were identified. Results: Eight hundred fifty-eight meningioma cases were reported. The relative risk of a first- or second-degree relative was 3.13 (95% CI: 1.67, 5.36) or 2.28 (1.30, 3.70), respectively. The GIF statistic demonstrated a clear excess of relationships for genetic distance <4 (closer than first cousins). We identified 920 pedigrees, including 2-21 meningioma cases. One hundred eighty-nine of these pedigrees, including 2-15 cases, had a significant excess (P < 0.05) of meningioma cases over what was expected. Conclusions: This Utah population-based analysis of meningiomas shows clear evidence of familial clustering and supports both a familial and a germline variant basis for meningioma. These clusters may allow identification of genes likely to contribute to tumorigenesis in high-risk pedigrees. These relative risk data provide the basis for further investigations of genetic contributions to meningioma. These data may contribute to developing a basis for determining screening criteria of higher-risk pedigrees for the presence of meningiomas. PMID- 29016977 TI - Transcription Factor AsMYC2 Controls the Jasmonate-Responsive Expression of ASS1 Regulating Sesquiterpene Biosynthesis in Aquilaria sinensis (Lour.) Gilg. AB - Sesquiterpenes are one of the most important defensive secondary metabolite components of agarwood. Agarwood, which is a product of the Aquilaria sinensis response to external damage, is a fragrant and resinous wood that is widely used in traditional medicines, incense and perfume. We previously reported that jasmonic acid (JA) plays an important role in promoting agarwood sesquiterpene biosynthesis and induces expression of the sesquiterpene synthase ASS1, which is a key enzyme that is responsible for the biosynthesis of agarwood sesquiterpenes in A. sinensis. However, little is known about this molecular regulation mechanism. Here, we characterized a basic helix-loop-helix transcription factor, AsMYC2, from A. sinensis as an activator of ASS1 expression. AsMYC2 is an immediate-early jasmonate-responsive gene and is co-induced with ASS1. Using a combination of yeast one-hybrid assays and chromatin immunoprecipitation analyses, we showed that AsMYC2 bound the promoter of ASS1 containing a G-box motif. AsMYC2 activated expression of ASS1 in tobacco epidermis cells and up regulated expression of sesquiterpene synthase genes (TPS21 and TPS11) in Arabidopsis, which was also promoted by methyl jasmonate. Our results suggest that AsMYC2 participates in the regulation of agarwood sesquiterpene biosynthesis in A. sinensis by controlling the expression of ASS1 through the JA signaling pathway. PMID- 29016978 TI - Comparative proteomic analyses of two Taxus species (Taxus * media and Taxus mairei) reveals variations in the metabolisms associated with paclitaxel and other metabolites. AB - Taxus species are well-known for paclitaxel, which exhibits antitumor activities and is used for treating various cancers. Although most Taxus species are widespread in many areas, few studies have characterized the variation in metabolism among different Taxus species. Using an integrated approach involving 'tandem mass tag' labeling and liquid chromatography-tandem mass spectrometry (HPLC-MS), proteomes of T. media and T. mairei were investigated and 4078 proteins were quantified. Screening and classification of differentially expressed proteins revealed many metabolism-associated proteins. In detail, four enzymes involved in the flavonoid biosynthesis pathway were predominantly expressed in T. mairei. Four enzymes associated with supplying precursors for paclitaxel biosynthesis and three cytochrome P450 taxoid oxygenases were preferentially expressed in T. media compared with T. mairei. Furthermore, variations in taxoid contents between T. media and T. mairei were determined using HPLC-MS analysis. Variations in flavonoid contents between T. media and T. mairei were determined by HPLC analysis. A number of differentially expressed proteins may provide an explanation for the variation in metabolisms of different Taxus species. PMID- 29016979 TI - Attention-mediated neurocognitive profiles in survivors of pediatric brain tumors: comparison to children with neurodevelopmental ADHD. AB - Background: Attention and working memory symptoms are among the most common late effects in survivors of pediatric brain tumors, and are often associated with academic and psychosocial difficulties. Diagnostic and treatment approaches derived from the literature on attention-deficit hyperactivity disorder (ADHD) have frequently been applied to survivors, yet the extent of overlap in cognitive profiles between these groups is unclear. The objective of the present study is to compare neurocognition in survivors of brain tumors and children with neurodevelopmental ADHD. Methods: Neuropsychological data were abstracted from clinically referred brain tumor survivors (n = 105, Mage = 12.0 y, 52.4% male) and children with ADHD (n = 178, Mage = 11.1 y, 64.0% male). Data consist of a battery of parent-report questionnaires and performance-based neuropsychological measures. Results: Twenty-five survivors (23.8%) of pediatric brain tumors met symptom criteria for ADHD. Participants with neurodevelopmental ADHD and survivors who met ADHD criteria had significantly greater parent- (P < 0.001) and teacher-reported (P < 0.001) working memory and behavior regulation difficulties than survivors of tumor who did not meet criteria. Children with ADHD symptoms also performed worse on measures of sustained attention than survivors without ADHD symptoms (P < 0.001). Additionally, survivors with ADHD symptoms had greater performance-based working memory difficulties than either survivors without attention problems or children with neurodevelopmental ADHD (P = 0.002). Conclusions: Nearly a quarter of survivors with attention symptoms have functional profiles that are similar to children with neurodevelopmental ADHD. They also experience more neurocognitive impairments than survivors without attentional difficulties, particularly in working memory. Screening for ADHD symptoms may help providers triage a subset of individuals in need of earlier or additional neuropsychological assessment. PMID- 29016980 TI - Effectiveness and Cost-effectiveness of Opportunistic Screening and Stepped-care Interventions for Older Alcohol Users in Primary Care. AB - Aims: To compare the clinical effectiveness and cost-effectiveness of a stepped care intervention versus a minimal intervention for the treatment of older hazardous alcohol users in primary care. Method: Multi-centre, pragmatic RCT, set in Primary Care in UK. Patients aged >= 55 years scoring >= 8 on the Alcohol Use Disorders Identification Test were allocated either to 5-min of brief advice or to 'Stepped Care': an initial 20-min of behavioural change counselling, with Step 2 being three sessions of Motivational Enhancement Therapy and Step 3 referral to local alcohol services (progression between each Step being determined by outcomes 1 month after each Step). Outcome measures included average drinks per day, AUDIT-C, alcohol-related problems using the Drinking Problems Index, health related quality of life using the Short Form 12, costs measured from a NHS/Personal Social Care perspective and estimated health gains in quality adjusted life-years measured assessed EQ-5D. Results: Both groups reduced alcohol consumption at 12 months but the difference between groups was small and not significant. No significant differences were observed between the groups on secondary outcomes. In economic terms stepped care was less costly and more effective than the minimal intervention. Conclusions: Stepped care does not confer an advantage over a minimal intervention in terms of reduction in alcohol use for older hazardous alcohol users in primary care. However, stepped care has a greater probability of being more cost-effective. Trial Registration: Current controlled trials ISRCTN52557360. Short summary: A stepped care approach was compared with brief intervention for older at-risk drinkers attending primary care. While consumption reduced in both groups over 12 months there was no significant difference between the groups. An economic analysis indicated the stepped care which had a greater probability of being more cost-effective than brief intervention. PMID- 29016983 TI - Predictors of sleep disordered breathing in children: the PANIC study. AB - Objective: We studied longitudinally the associations of craniofacial morphology, mouth breathing, orthodontic treatment, and body fat content with the risk of having and developing sleep disordered breathing (SDB) in childhood. We hypothesized that deviant craniofacial morphology, mouth breathing, and adiposity predict SDB among children. Materials and methods: The participants were 412 children 6-8 years of age examined at baseline and 329 children aged 9-11 years re-examined at an average 2.2-year follow-up. An experienced orthodontist evaluated facial proportions, dental occlusion, soft tissue structures, and mode of breathing and registered malocclusions in orthodontic treatment. Body fat percentage was assessed by dual-energy X-ray absorptiometry and SDB symptoms by a questionnaire. Results: Children with SDB more likely had convex facial profile, increased lower facial height, mandibular retrusion, tonsillar hypertrophy, and mouth breathing at baseline and convex facial profile, mandibular retrusion, and mouth breathing at follow-up than children without SDB at these examinations. Male gender and body adiposity, mouth breathing, and distal molar occlusion at baseline were associated with SDB later in childhood. Adipose tissue under the chin, mandibular retrusion, vertically large or normal throat and malocclusion in orthodontic treatment at baseline predicted developing SDB during follow-up of among children without SDB at baseline. Limitations: We could not conduct polysomnographic examinations to define sleep disturbances. Instead, we used a questionnaire filled out by the parents to assess symptoms of SDB. Conclusions: The results indicate that among children, deviant craniofacial morphology, mouth breathing, body adiposity, and male gender seem to have implications in the pathophysiology of SDB. PMID- 29016984 TI - How Classical Conditioning Shapes Placebo Analgesia: Hidden versus Open Conditioning. AB - Objective: To investigate the influence of expectancy of pain intensity, fear of pain (trait), and fear (state) on the effectiveness of hidden and open conditioning to produce placebo analgesia. Methods: A total of 90 healthy female volunteers were randomly assigned to three groups (hidden conditioning, open conditioning, and control) that received electrical stimuli preceded by either orange or blue lights. One color was paired with painful stimuli (control stimuli) and the other color was paired with nonpainful stimuli (conditioned stimuli) in both the hidden and open conditioning groups. Only participants in the open conditioning group were informed about this association. In the control group, both color lights were followed by control stimuli. In the testing phase, both colored lights were followed by identical control stimuli. Participants rated pain intensity, expectancy of pain intensity, fear, and fear of pain. Results: A significant analgesic effect was found only in the hidden conditioning group, where no explicit verbal suggestions were provided. Hidden conditioning had an effect on expectancy and fear-participants in the hidden conditioning group expected less pain and experienced less fear in relation to conditioned stimuli. Fear was the only predictor of placebo analgesia in the hidden conditioning group. Neither expectancy of pain intensity nor fear of pain predicted placebo analgesia. Conclusions: Fear seems to be a more important factor than expectancy in producing placebo analgesia induced by hidden conditioning. PMID- 29016985 TI - The effect of various adhesives, enamel etching, and base treatment on the failure frequency of customized lingual brackets: a randomized clinical trial. AB - Objectives: The aim of this paper was to compare failure differences in precious metal customized lingual brackets bonded with three adhesive systems. Also, differences in failure of non-precious metal brackets with and without a silicatized base layer bonded with the same adhesive, as well as the influence of enamel etching prior to using a self-etching dual cure resin were explored. Materials/methods: Five different groups were defined in a semi-randomized approach. Group 1 (IME): Maxcem Elite with 378 Incognito brackets and etched teeth, Group 2 (IMNE): Maxcem Elite with 193 Incognito brackets on non-etched teeth, Group 3 (INE): Nexus+Excite with 385 Incognito brackets, Group 4 (IRE): Relyx with 162 Incognito brackets, Group 5 (HRME) and Group 6 (HNRME): Maxcem Elite with 182 Harmony brackets with silicatized and non-slicatized bases respectively. Bracket failures were recorded over a 12-month period. Results: The number of failures during the observation period was small in the various adhesives types of groups, as well as in HRME and HNRME groups, and the comparisons among those groups were non-significant (P > 0.05). A statistically significant difference (P < 0.05) was found between the IME and IMNE groups. Conclusions: 1. During the first year of treatment customized lingual brackets failure frequencies (rates) are not different for the three adhesive materials tested. 2. Eliminating the etching stage when using self-etch/self-adhesive adhesives, may lead to a dramatic increase in the failure rates. 3. Silicoating of stainless steel customized lingual brackets does not seem to influence the failure of the bonds. PMID- 29016982 TI - Burnout in Belgian physicians and nurses. AB - Background: Burnout in healthcare is a worldwide problem. However, most studies focus narrowly on work-related factors and outcomes in one health profession or speciality. Aims: To investigate the prevalence of burnout and its association with job demands, job resources, individual well-being, work-related attitudes and behaviour in physicians and nurses across different specialties. Methods: Multi-centre cross-sectional study of physicians and nurses working in Belgian hospitals. An electronic questionnaire was used to assess job demands (e.g. workload), job resources (e.g. autonomy) and indicators of well-being, work related attitudes and behaviours. Structural equation modelling was used to examine interrelationships between explanatory variables and outcomes. Results: 1169 physicians and 4531 nurses participated; response rate 26%. High scores (>75th percentile in reference group of Dutch health care workers) were seen in 6% of the sample on three burnout dimensions (i.e. emotional exhaustion, depersonalization and personal competence) and in 13% for at least two dimensions. In contrast to the other dimensions, emotional exhaustion strongly related to almost all variables examined in the model. Positive associations were seen with workload, role conflicts, emotional burden and work-home interference and negative associations with learning and development opportunities and co worker support. Emotional exhaustion correlated negatively with well-being, turnover intention, being prepared and able to work until retirement age, medication use, absenteeism and presenteeism. Conclusions: Work-related factors were critical correlates of emotional exhaustion, which strongly related to poor health and turnover intention. Randomized controlled trials are suggested to underpin the effectiveness of interventions tackling job stressors and promoting job resources. PMID- 29016981 TI - Prevalence of Polysubstance Abuse and Dual Diagnosis in Patients Admitted to Alcohol Rehabilitation Units for Alcohol-Related Problems in Italy: Changes in 15 Years. AB - Aims: Alcohol abuse has long been known as a disease with social and economic burden to society. Given the complex nature of alcohol treatment, it is worthwhile to examine the change over time of patients admitted to residential alcohol abuse rehabilitation units. Methods: The data were collected from two Italian projects on alcoholics performed in the mid-1990s (ASSALT) and in 2009 (CORRAL), respectively. Categorical variables were considered in terms of absolute and relative frequencies. Comparisons of relative frequencies between groups were assessed by means of Fisher's exact test. Mixed logistic regression models were fitted to CORRAL data to identify the predictors of the probability of being a polysubstance abuser or having a dual diagnosis. The association estimates were reported as adjusted odds ratios and relative 95% confidence intervals. Results: Compared to the mid-1990s, in 2009 patients were older (P= 0.0003), with a higher level of education (P= 0.0204), with fewer comorbidities (liver disease except cirrhosis, P < 0.0001; polyneuropathy, P= 0.0001), more frequently polysubstance abusers (P < 0.0001), affected by dual diagnosis (P < 0.0001). In 2009, the probability of being a polysubstance abuser was higher in younger and in patients with dual psychiatric diagnosis. Female gender and polysubstance abuse were positively associated to the probability of being affected by dual psychiatric diagnosis. Conclusions: The increment of patients admitted to residential programs for alcohol dependence with polysubstance abuse and/or dual psychiatric diagnoses suggests the need to pay more attention to both psychological/psychiatric interventions and internal medicine/physical rehabilitation. Short summary: The results of this study suggest that further research is needed to identify the best treatment strategy that is safe and effective for the new population of alcoholics. PMID- 29016986 TI - Retained pacemaker and implantable cardioverter-defibrillator components after heart transplantation are common and may lead to adverse events. AB - Aims: Many patients have a cardiac implantable electronic device (CIED) extracted at the time of heart transplantation. CIED components may be retained after heart transplantation, but their frequency, nature, and clinical significance is uncertain. Methods and results: Consecutive patients that underwent heart transplantation over 10 years from 1 January 2007 until 1 January 2017 were identified from the unit database. Pre- and post-operative chest radiographs were reviewed by two independent observers for the presence of CIED components. Adverse events relating to any retained CIED component were recorded. Two hundred and six patients had a CIED removed at the time of transplantation. Retained CIED components were present in 86 (42%) patients. The most common retained CIED components were suture sleeves and superior vena cava (SVC) coils of dual coil implantable cardioverter-defibrillator (ICD) leads. An SVC coil was retained in 25% of patients that had a dual coil ICD lead. Seven adverse events were associated with CIED removal or retained CIED components, including one fatal event. However, retained CIED components were not associated with reduced long term survival after heart transplantation. Conclusion: Retained CIED components were seen in 42% of patients that had a CIED prior to transplantation, may be associated with serious adverse events but are not associated with reduced long term survival. Cardiac surgeons should be aware of all CIED system components and be familiar with techniques for their complete removal at the time of transplantation. PMID- 29016988 TI - The Path to Thioredoxin and Redox Regulation Beyond Chloroplasts. AB - Once the ferredoxin/thioredoxin system was established as a mechanism linking light to the post-translational regulation of chloroplast enzymes, I considered that plants might harbor a light-independent mechanism utilizing this same enzyme chemistry based on thiol-disulfide redox transitions. After reflection, it occurred to me that such a mechanism could be fundamental to seeds of cereals that undergo dramatic change following exposure to oxygen during maturation and drying. The pursuit of this idea led to the discovery of a family of extraplastidic thioredoxins, designated the h-type, that resemble animal and bacterial counterparts in undergoing enzymatic reduction with NADPH. Current evidence suggests that h-type thioredoxins function broadly throughout the plant. Here I describe how the thioredoxin h field developed, its current status and potential for contributing material benefits to society. PMID- 29016989 TI - The influence of progression of atrial fibrillation on quality of life: a report from the Euro Heart Survey. AB - Aims: Progression of atrial fibrillation (AF) from paroxysmal to persistent forms is an active field of research. The influence of AF progression on health related quality of life (HRQoL) is currently unknown. We aimed to assess the influence of AF progression on HRQoL, and whether this association is mediated through symptoms, treatment, and major adverse events. Methods and results: In the Euro Heart Survey, 967 patients were included with paroxysmal AF who filled out EuroQoL-5D at baseline and at 1 year follow-up. Those who progressed (n = 132, 13.6%) developed more problems during follow-up than those who did not, on all EuroQoL-5D domains (increase in problems on mobility 20.5% vs. 11.4%; self-care 12.9% vs. 6.2%; usual activities 23.5% vs. 14.0%; pain/discomfort 20.5% vs. 13.7%; and anxiety/depression 22.7% vs. 15.7%; all P < 0.05), leading to a decrease in utility [baseline 0.744 +/- 0.26, follow-up 0.674 +/- 0.36; difference -0.07 (95% CI [-0.126,-0.013], P = 0.02)]. Multivariate analysis showed that the effect of progression on utility is mediated by a large effect of adverse events [stroke (-0.27 (95% CI [-0.43,-0.11]); P = 0.001], heart failure [ 0.12 (95% CI [-0.20,-0.05]); P = 0.001], malignancy (-0.31 (95% CI [-0.56, 0.05]); P = 0.02] or implantation of an implantable cardiac defibrillator [-0.12 (95% CI [-0.23,-0.02]); P = 0.03)], as well as symptomatic AF [-0.04 (95% CI [ 0.08,-0.01]); P = 0.008]. Conclusion: AF progression is associated with a decrease in HRQoL. However, multivariate analysis revealed that AF progression itself does not have a negative effect on HRQoL, but that this effect can be attributed to a minor effect of the associated symptoms and a major effect of associated adverse events. PMID- 29016990 TI - Age and sex differences in atrial fibrosis among patients with atrial fibrillation. AB - Aim: Age and female sex are associated with a higher risk of stroke in atrial fibrillation (AF). We sought to determine whether advancing age and female sex are associated with higher atrial fibrosis. Methods and results : We conducted an observational cohort study of patients with AF enrolled in the University of Utah AF Database and a non-AF control group who underwent late-gadolinium enhancement magnetic resonance imaging (LGE-MRI) for atrial fibrosis quantification. Participants with contra-indications for contrast MRI scanning were excluded. Nine hundred and eight consecutive men and women with AF and 15 non-AF controls were included in this study. Left atrial fibrosis increased with age in both men and women with AF. Women with AF (n = 316) were older than men (n = 592): mean age 68.7+/-11.6 vs. 64.9+/-11.7 years; P < 0.01, and had higher left atrial fibrosis compared with men 17.5 +/- 10.1% vs. 15.3 +/- 8.9%; P < 0.001. Women also had a higher prevalence of prior stroke compared with men (15.8% vs. 6.5%; P < 0.001). Age and sex relationships with atrial fibrosis remained significant in multivariate analysis. Compared with the non-AF control group, patients with AF had significantly higher atrial fibrosis: 16.0 +/- 9.4 vs. 5.5 +/- 5.8%; P < 0.001. Conclusions: Advancing age and female sex are associated with a higher burden of atrial fibrosis in patients with AF. Women with a prior history of stroke also have higher fibrosis compared with both women and men without history of stroke. Advanced fibrosis may explain the female and age association with stroke in AF. PMID- 29016987 TI - Long-term exposure to ambient air pollution and incidence of brain tumor: the European Study of Cohorts for Air Pollution Effects (ESCAPE). AB - Background: Epidemiological evidence on the association between ambient air pollution and brain tumor risk is sparse and inconsistent. Methods: In 12 cohorts from 6 European countries, individual estimates of annual mean air pollution levels at the baseline residence were estimated by standardized land-use regression models developed within the ESCAPE and TRANSPHORM projects: particulate matter (PM) <=2.5, <=10, and 2.5-10 MUm in diameter (PM2.5, PM10, and PMcoarse), PM2.5 absorbance, nitrogen oxides (NO2 and NOx) and elemental composition of PM. We estimated cohort-specific associations of air pollutant concentrations and traffic intensity with total, malignant, and nonmalignant brain tumor, in separate Cox regression models, adjusting for risk factors, and pooled cohort-specific estimates using random-effects meta-analyses. Results: Of 282194 subjects from 12 cohorts, 466 developed malignant brain tumors during 12 years of follow-up. Six of the cohorts also had data on nonmalignant brain tumor, where among 106786 subjects, 366 developed brain tumor: 176 nonmalignant and 190 malignant. We found a positive, statistically nonsignificant association between malignant brain tumor and PM2.5 absorbance (hazard ratio and 95% CI: 1.67; 0.89 3.14 per 10-5/m3), and weak positive or null associations with the other pollutants. Hazard ratio for PM2.5 absorbance (1.01; 0.38-2.71 per 10-5/m3) and all other pollutants were lower for nonmalignant than for malignant brain tumors. Conclusion: We found suggestive evidence of an association between long-term exposure to PM2.5 absorbance indicating traffic-related air pollution and malignant brain tumors, and no association with overall or nonmalignant brain tumors. PMID- 29016991 TI - Case report of asthma associated with 3D printing. AB - Background: Three-dimensional (3D) printing is being increasingly used in manufacturing and by small business entrepreneurs and home hobbyists. Exposure to airborne emissions during 3D printing raises the issue of whether there may be adverse health effects associated with these emissions. Aims: We present a case of a worker who developed asthma while using 3D printers, which illustrates that respiratory problems may be associated with 3D printer emissions. Case report: The patient was a 28-year-old self-employed businessman with a past history of asthma in childhood, which had resolved completely by the age of eight. He started using 10 fused deposition modelling 3D printers with acrylonitrile butadiene-styrene filaments in a small work area of approximately 3000 cubic feet. Ten days later, he began to experience recurrent chest tightness, shortness of breath and coughing at work. After 3 months, his work environment was modified by reducing the number of printers, changing to polylactic acid filaments and using an air purifier with an high-efficiency particulate air filter and organic cartridge. His symptoms improved gradually, although he still needed periodic treatment with a salbutamol inhaler. While still symptomatic, a methacholine challenge indicated a provocation concentration causing a 20% fall in FEV1 (PC20) of 4 mg/ml, consistent with mild asthma. Eventually, his symptoms resolved completely and a second methacholine challenge after symptom resolution was normal (PC20 > 16 mg/ml). Conclusions: This case indicates that workers may develop respiratory problems, including asthma when using 3D printers. Further investigation of the specific airborne emissions and health problems from 3D printing is warranted. PMID- 29016992 TI - How to prevent atrial oesophageal fistula following ablation of atrial fibrillation: are there actually any effective methods?-Authors' reply. PMID- 29016993 TI - A Positron Emission Tomography Study of Norepinephrine Transporter Occupancy and Its Correlation with Symptom Response in Depressed Patients Treated with Quetiapine XR. AB - Background: Quetiapine is effective in treating depressive symptoms in major depressive disorder and bipolar disorder, but the mechanisms underlying its antidepressants effects are unknown. Norquetiapine, a metabolite of quetiapine, has high affinity for norepinephrine transporter, which might account for its therapeutic efficacy. Methods: In this study, we used positron emission tomography with (S,S)-[11C]O-methyl reboxetine to estimate norepinephrine transporter density and assess the relationship between norepinephrine transporter occupancy by quetiapine XR and improvement in depression in patients with major depressive disorder (n=5) and bipolar disorder (n=5). After the baseline positron emission tomography scan, patients were treated with quetiapine XR with a target dose of 150 mg in major depressive disorder and 300 mg in bipolar disorder. Patients had a second positron emission tomography scan at the end of week 2 and a final scan at week 7. Results: Norepinephrine transporter density was significantly lower in locus ceruleus in patients compared with healthy subjects. Further, there was a significant positive correlation between quetiapine XR dose and norepinephrine transporter occupancy in locus ceruleus at week 2. The norepinephrine transporter occupancy at week 2 in hypothalamus but not in other regions predicted improvement in depression as reflected by reduction in MADRS scores from baseline to week 7. The estimated dose of quetiapine XR associated with 50% norepinephrine transporter occupancy in hypothalamus at week 2 was 256 mg and the estimated plasma levels of norquetiapine to achieve 50% norepinephrine transporter occupancy was 36.8 ug/L. Conclusion: These data provide preliminary support for the hypothesis that norepinephrine transporter occupancy by norquetiapine may be a contributor to the antidepressant effects of quetiapine. PMID- 29016994 TI - Neuromodulation in Postherpetic Neuralgia: Case Reports and Review of the Literature. AB - Objective: Postherpetic neuralgia (PHN) is common in the United States. Current treatment options for PHN are fairly limited. Spinal cord stimulation (SCS) and peripheral nerve stimulation (PNS) are considered mostly experimental and still rarely performed in patients with PHN. Design: Two case reports and a review of the literature. Setting: Tertiary academic medical center. Methods: 1) Pubmed, Ovid, and EBMR databases were searched for all reports that had the following key words: postherpetic neuralgia, spinal cord stimulation, and peripheral nerve stimulation. 2) A retrospective chart review was performed for all the patients that underwent PNS for PHN at Mayo Clinic Florida (MCF). Results: There were 20 original reports that described 309 patients with PHN who were treated with SCS. Sixteen reports had a permanent implantation of SCS, with a total of 255 patients, out of which 120 had long-term pain relief. There were six reports of subcutaneous PNS for PHN (in a thoracic area). Four reports provided data on success rates where all five patients received complete pain relief. In our practice, two patients underwent subcutaneous PNS for PHN (in the thoracic area) with good pain relief for 10 months and 2.5 years, respectively. Conclusions: Based on our review of the literature and the two cases at MCF, subcutaneous PNS seems to be a promising intervention in the treatment of PHN. PMID- 29016996 TI - Identification of time-to-peak on dynamic 18F-FET-PET as a prognostic marker specifically in IDH1/2 mutant diffuse astrocytoma. AB - Background: Stratification of glioma according to isocitrate dehydrogenase 1/2 (IDH1/2) mutation and 1p/19q codeletion status has gained major importance in the new World Health Organization (WHO) classification. Parameters derived from uptake dynamics of 18F-fluoro-ethyl-tyrosine PET (18F-FET-PET) such as minimal time-to-peak (TTPmin) allow discrimination between different prognostic glioma subgroups, too. The present study is aimed at exploring whether TTPmin analysis provides prognostic information beyond the WHO classification. Methods: Three hundred patients with newly diagnosed WHO 2007 grades II-IV gliomas with 18F-FET PET imaging at diagnosis were grouped into 4 subgroups (IDH1/2 mut-1p/19q codel; IDH1/2 mut-1p/19q non-codel; IDH1/2 wildtype WHO grade II and III tumors; and glioblastoma). Clinical and imaging factors such as age, Karnofsky performance score, treatment, TTPmin, and maximal tumor-to-brain ratio (TBRmax) were analyzed with regard to progression-free and overall survival (PFS and OS) via univariate and multivariate regression analysis. Results: PFS and OS were longest in the IDH1/2 mut-1p/19q codel subgroup, followed by IDH1/2 mut-1p/19q non-codel, IDH1/2 wildtype, and GBM (P < 0.001). Further, outcome stratified by TTPmin with a cutoff of 17.5 minutes revealed significantly longer PFS and OS in patients with TTPmin >17.5 minutes (P < 0.001 for PFS and OS). Lower TBRmax values or the absence of 18F-FET uptake was also associated with favorable outcome in the entire group. In the subgroup analyses, longer median TTPmin was associated with improved outcome specifically in the IDH1/2 mut-1p/19q non-codel group. Conclusion: 18F-FET-PET-derived dynamic analysis defines prognostically distinct subgroups of IDH1/2 mutant-1p/19q non-codel gliomas which cannot be distinguished as yet by molecular marker analysis. PMID- 29016997 TI - The Influence of a Cryptochrome on the Gene Expression Profile in the Diatom Phaeodactylum tricornutum under Blue Light and in Darkness. AB - Diatoms, albeit being only distantly related with higher plants, harbor a plant like cryptochrome (CryP) that was proposed to act as a photoreceptor required for the regulation of some photosynthetic proteins. Plant cryptochromes are involved in the regulation of developmental processes relevant only to multicellular organisms. Their role in the unicellular diatoms to date is mostly enigmatic. To elucidate the function of this plant-like cryptochrome in a unicellular species, we examined the role of CryP in the regulation of transcription in the diatom Phaeodactylum tricornutum by comparative RNA-seq of wild type and CryP knock-down mutants, under prolonged darkness and one hour after onset of blue light. In total, mRNAs of 12,298 genes were identified and more than 70% of the genes could be sorted into functional bins. CryP influenced groups of transcripts in three different ways: some transcripts displayed altered expression under blue light only, others independent of the light condition, and, surprisingly, some were influenced by CryP only in darkness. Genes regulated in any condition were distributed over almost all functional categories. CryP exerted an influence on two other photoreceptors: the genes encoding phytochrome and CPF1, another cryptochrome, which were down-regulated by CryP independent of the light condition. However, the regulatory responses of the affected photoreceptors on transcriptional output were independent. The influence of CryP on the expression of other photoreceptors hints to the existence of a regulatory signaling network in diatoms that includes several cryptochromes and phytochrome, whereby CryP acts as a regulator of transcript abundance under light as well as in darkness. PMID- 29016995 TI - Ultra-Brief Mindfulness Training Reduces Alcohol Consumption in At-Risk Drinkers: A Randomized Double-Blind Active-Controlled Experiment. AB - Background: Like other complex psychosocial interventions, mindfulness-based treatments comprise various modality-specific components as well as nonspecific therapeutic ingredients that collectively contribute to efficacy. Consequently, the isolated effects of mindfulness strategies per se remain unclear. Methods: Using a randomized double-blind design, we compared the isolated effects of 11 minutes of "supervised" mindfulness instruction against a closely matched active control (relaxation) on subjective, physiological, and behavioral indices of maladaptive alcohol responding in drinkers at risk of harm from alcohol use (n = 68). Simple follow-up instructions on strategy use were provided, but practice was unsupervised and not formally monitored. Results: Both groups showed acute reductions in craving after training, although a trend group x time interaction (P = .056) suggested that this reduction was greater in the relaxation group (d = 0.722 P < .001) compared with the mindfulness group (d = 0.317, P = .004). Furthermore, upregulation of parasympathetic activity was found after relaxation (d = 0.562; P < .001) but not mindfulness instructions (d = 0.08; P > .1; group x time interaction: P = .009). By contrast, only the mindfulness group showed a reduction in past-week alcohol consumption at 7-day follow-up (-9.31 units, d = 0.593, P < .001), whereas no significant reduction was seen in the relaxation group (-3.00 units, d = 0.268, P > .1; group x time interaction: P = .026). Conclusion: Very brief mindfulness practice can significantly reduce alcohol consumption among at-risk drinkers, even with minimal encouragement to use this strategy outside of the experimental context. The effects on consumption may therefore represent a lower bound of efficacy of "ultra-brief" mindfulness instructions in hazardous drinkers, at least at short follow-up intervals. PMID- 29016999 TI - The Space of Okada with Bilateral Facet Joint Arthrograms During a Lumbar Interlaminar Epidural Injection. PMID- 29016998 TI - Phase II study of cabozantinib in patients with progressive glioblastoma: subset analysis of patients naive to antiangiogenic therapy. AB - Background: Cabozantinib is a tyrosine kinase inhibitor with activity against vascular endothelial growth factor receptor 2 (VEGFR2) and MET that has demonstrated clinical activity in advanced solid tumors. This open-label, phase II trial evaluated cabozantinib in patients with recurrent or refractory glioblastoma (GBM). Methods: Patients were initially enrolled at a starting dose of 140 mg/day, but the starting dose was amended to 100 mg/day because of toxicity. Treatment continued until disease progression or unacceptable toxicity. The primary endpoint was objective response rate assessed by an independent radiology facility using modified Response Assessment in Neuro-Oncology criteria. Additional endpoints included duration of response, 6-month and median progression-free survival, overall survival, and safety. Results: Among 152 patients naive to prior antiangiogenic therapy, the objective response rate was 17.6% and 14.5% in the 140 mg/day and 100 mg/day groups, respectively, which did not meet the predefined statistical target for success. The proportions of patients alive and progression free at 6 months were 22.3% and 27.8%, respectively. Median progression-free survival was 3.7 months in both groups, and median overall survival was 7.7 months and 10.4 months, respectively. The incidence of grade 3/4 adverse events (AEs) was 79.4% and 84.7% in the 140 mg/day and 100 mg/day groups, respectively, and dose reductions due to AEs were experienced by 61.8% and 72.0%, respectively. Common grade 3/4 AEs included fatigue, diarrhea, and palmar-plantar erythrodysesthesia syndrome. Conclusions: Cabozantinib showed evidence of clinical activity in patients with recurrent GBM naive to antiangiogenic therapy, although the predefined statistical target for success was not met. At the starting doses assessed, AEs were frequently managed with dose reductions. Clinical Trials Registration Number: NCT00704288 (https://www.clinicaltrials.gov/ct2/show/NCT00704288). PMID- 29017000 TI - Visual and Postural Motion-Evoked Dizziness Symptoms Are Predominant in Vestibular Migraine Patients. AB - Background: Vestibular migraine (VM) is one of the most common underdiagnosed disorders. We aimed to study the clinical characteristics of VM patients who were referred to a neurology-headache unit by otolaryngology after exclusion of peripheral causes of vertigo. Methods: One hundred and one patients diagnosed with VM in the headache unit were included. Description of vestibular symptoms, demographic and clinical features, trigger factors, accompanying diseases, and response to vestibular-suppressant medications and prophylactic migraine treatment were evaluated. Results: Vestibular symptoms were triggered by daily head and body movements and mainly consisted of brief attacks lasting seconds (60.4% of patients) although the total duration of the vestibular episode lasted hours or days. Other aggravating factors were moving visual stimuli, passive motion, and visually busy environments. Visually induced vestibular symptoms were defined by 71.3% of the patients, and positional motion-induced vestibular symptoms were described by 82.2% of the patients. Vestibular symptoms were mainly defined as feeling the ground slipping from under their feet (40.6%), feeling like there is an earthquake or swaying (27.7%), sensation of rocking on a boat (26.7%), and sensation as if stepping on empty space (24.8%). The majority of the patients (83.2%) previously used vestibular-suppressant drugs, and these drugs were effective temporarily only in 12.9%. Conclusions: Chronic recurrent dizziness symptoms, rather than internal or external vertigo, are predominant in our VM patients. Recurrent brief dizziness attacks induced upon routine visual and/or postural motion, longstanding symptoms with limited response to vestibular suppressants, and precipitation by typical migraine triggers are suggestive of VM. PMID- 29017002 TI - The question mark sign of large vessel vasculitis on 18F-FDG PET/CT. PMID- 29017001 TI - Single-Pixel Densitometry Revealed the Presence of Peptidoglycan in the Intermembrane Space of the Moss Chloroplast Envelope in Conventional Electron Micrographs. AB - Chloroplasts are believed to be descendants of ancestral cyanobacteria that have a peptidoglycan layer between the outer and the inner membranes. In particular, cyanelles having peptidoglycan in Cyanophora paradoxa are considered as evidence for the endosymbiotic origin of chloroplasts. The moss Physcomitrella patens has a complete set of genes involved in the synthesis of peptidoglycan, but a peptidoglycan layer has not been observed by conventional electron microscopy to date. Recently, a new metabolic labeling technique using a fluorescent probe was applied to visualize putative peptidoglycan surrounding the chloroplasts. The exact localization of the peptidoglycan, however, has not been clearly identified. Here we examined conventional electron micrographs of two types of moss materials (mutants or ampicillin-treated plants), one presumably having peptidoglycan and the other presumably lacking peptidoglycan, and analyzed in detail, by single-pixel densitometry, the electron density of the chloroplast envelope membranes and the intermembrane space. Statistical analysis showed that the relative electron density within the intermembrane space with respect to that of the envelope membranes was significantly higher in the materials presumably having peptidoglycan than in the materials presumably devoid of peptidoglycan. We consider this difference as bona fide evidence for the presence of peptidoglycan between the outer and the inner envelope membranes in the wild-type chloroplasts of the moss, although its density is lower than that in bacteria and cyanelles. We will also discuss this low-density peptidoglycan in the light of the phylogenetic origin of peptidoglycan biosynthesis enzymes. PMID- 29017003 TI - MYC5 is Involved in Jasmonate-Regulated Plant Growth, Leaf Senescence and Defense Responses. AB - Jasmonates (JAs), lipid-derived phytohormones, regulate plant growth, development and defenses against biotic stresses. CORONATINE INSENSITIVE1 perceives bioactive JA and recruits JASMONATE ZIM-DOMAIN (JAZ) proteins for ubiquitination and subsequent degradation via the 26S proteasome, which de-represses JAZ-targeted transcription factors that regulate diverse JA responses. Recent studies showed that the Arabidopsis basic helix-loop-helix transcription factor MYC5 interacts with JAZs and regulates stamen development. However, whether MYC5 mediates other JA responses is unclear. Here, we show that MYC5 functions redundantly with MYC2, MYC3 and MYC4 to modulate JA-regulated root growth inhibition and plant defenses against insect attack and pathogen infection, and that it positively regulates JA induced leaf senescence. Our findings define MYC5 as an important regulator that is essential for diverse JA responses. PMID- 29017004 TI - Eating frequency predicts changes in regional body fat distribution in healthy adults. AB - Background: Eating frequency (EF) has been associated with generalized obesity. Aim: We aimed to prospectively investigate potential associations of frequency of eating episodes with regional fat layers. Design: EF was evaluated at baseline in 115 subjects free of clinically overt cardiovascular disease (54 +/- 9.1 years, 70 women) in a prospective, observational study. Methods: Metabolic parameters known to be associated with dietary factors and anthropometric markers including ultrasound assessment of subcutaneous (Smin) and pre-peritoneal (Pmax) fat and their ratio Smin/Pmax (AFI) were evaluated at baseline and at follow-up, 5 years later. Results: EF at baseline positively correlated with Pmax, even after adjustment for potential confounders. EF above median was also an independent predictor for Pmax (beta coefficient = -0.192, P = 0.037) and AFI (beta coefficient = 0.199, P = 0.049) at follow up. Multivariable linear mixed models analysis demonstrated that subjects with increased EF presented a lower progression rate of Pmax (beta = -0.452, P = 0.006) and a higher progression rate of AFI (beta = 0.563, P = 0.003) over time, independently of age, sex, progression of BMI, energy intake, smoking and changes in parameters of glucose metabolism. Conclusions: High EF is associated with lower progression rate of pre peritoneal fat accumulation. Future interventional studies should further investigate the clinical utility of these findings. PMID- 29017005 TI - Early planned removal of umbilical venous catheters to prevent infection in newborn infants. AB - BACKGROUND: Lengthy duration of use may be a risk factor for umbilical venous catheter-associated bloodstream infection in newborn infants. Early planned removal of umbilical venous catheters (UVCs) is recommended to reduce the incidence of infection and associated morbidity and mortality. OBJECTIVES: To compare the effectiveness of early planned removal of UVCs (up to two weeks after insertion) versus an expectant approach or a longer fixed duration in preventing bloodstream infection and other complications in newborn infants.To perform subgroup analyses by gestational age at birth and prespecified planned duration of UVC placement (see "Subgroup analysis and investigation of heterogeneity"). SEARCH METHODS: We used the standard Cochrane Neonatal search strategy including electronic searches of the Cochrane Central Register of Controlled Trials (CENTRAL; 2017, Issue 4), Ovid MEDLINE, Embase, and the Maternity & Infant Care Database (until May 2017), as well as conference proceedings and previous reviews. SELECTION CRITERIA: Randomised and quasi-randomised controlled trials that compared effects of early planned removal of UVCs (up to two weeks after insertion) versus an expectant approach or a longer fixed duration in preventing bloodstream infection and other complications in newborn infants. DATA COLLECTION AND ANALYSIS: Two review authors assessed trial eligibility and risk of bias and independently undertook data extraction. We analysed treatment effects and reported risk ratio (RR) and risk difference (RD) for dichotomous data, and mean difference (MD) for continuous data, with respective 95% confidence intervals (CIs). We planned to use a fixed-effect model in meta-analyses and to explore potential causes of heterogeneity in sensitivity analyses. We assessed the quality of evidence for the main comparison at the outcome level using GRADE methods. MAIN RESULTS: We found one eligible trial. Participants were 210 newborn infants with birth weight less than 1251 grams. The trial was unblinded but otherwise of good methodological quality. This trial compared removal of an umbilical venous catheter within 10 days after insertion (and replacement with a peripheral cannula or a percutaneously inserted central catheter as required) versus expectant management (UVC in place up to 28 days). More infants in the early planned removal group than in the expectant management group (83 vs 33) required percutaneous insertion of a central catheter (PICC). Trial results showed no difference in the incidence of catheter-related bloodstream infection (RR 0.65, 95% CI 0.35 to 1.22), in hospital mortality (RR 1.12, 95% CI 0.42 to 2.98), in catheter-associated thrombus necessitating removal (RR 0.33, 95% confidence interval 0.01 to 7.94), or in other morbidity. GRADE assessment indicated that the quality of evidence was "low" at outcome level principally as the result of imprecision and risk of surveillance bias due to lack of blinding in the included trial. AUTHORS' CONCLUSIONS: Currently available trial data are insufficient to show whether early planned removal of umbilical venous catheters reduces risk of infection, mortality, or other morbidity in newborn infants. A large, simple, and pragmatic randomised controlled trial is needed to resolve this ongoing uncertainty. PMID- 29017006 TI - Conformational Smear Characterization and Binning of Single-Molecule Conductance Measurements for Enhanced Molecular Recognition. AB - Electronic conduction or charge transport through single molecules depends primarily on molecular structure and anchoring groups and forms the basis for a wide range of studies from molecular electronics to DNA sequencing. Several high throughput nanoelectronic methods such as mechanical break junctions, nanopores, conductive atomic force microscopy, scanning tunneling break junctions, and static nanoscale electrodes are often used for measuring single-molecule conductance. In these measurements, "smearing" due to conformational changes and other entropic factors leads to large variances in the observed molecular conductance, especially in individual measurements. Here, we show a method for characterizing smear in single-molecule conductance measurements and demonstrate how binning measurements according to smear can significantly enhance the use of individual conductance measurements for molecular recognition. Using quantum point contact measurements on single nucleotides within DNA macromolecules, we demonstrate that the distance over which molecular junctions are maintained is a measure of smear, and the resulting variance in unbiased single measurements depends on this smear parameter. Our ability to identify individual DNA nucleotides at 20* coverage increases from 81.3% accuracy without smear analysis to 93.9% with smear characterization and binning (SCRIB). Furthermore, merely 7 conductance measurements (7* coverage) are needed to achieve 97.8% accuracy for DNA nucleotide recognition when only low molecular smear measurements are used, which represents a significant improvement over contemporary sequencing methods. These results have important implications in a broad range of molecular electronics applications from designing robust molecular switches to nanoelectronic DNA sequencing. PMID- 29017007 TI - DMSO: A Mixed-Competitive Inhibitor of Human Acetylcholinesterase. AB - Dimethyl sulfoxide (DMSO) is the most common organic solvent used in biochemical and cellular assays during drug discovery programs. Despite its wide use, the effect of DMSO on several enzyme classes, which are crucial targets of the new therapeutic agents, are still unexplored. Here, we report the detailed biochemical analysis of the effects of DMSO on the human acetylcholine-degrading enzyme, acetylcholinesterase (AChE), the primary target of current Alzheimer's therapeutics. Our analysis showed that DMSO is a considerably potent and highly selective irreversible mixed-competitive inhibitor of human AChE with IC50 values in the lower millimolar range, corresponding to 0.88% to 2.6% DMSO (v/v). Most importantly, 1-4% (v/v) DMSO, the commonly used experimental concentrations, showed ~37-80% inhibition of human AChE activity. We believe that our results will assist in developing stringent protocols and help in the better interpretation of experimental outcomes during screening and biological evaluation of new drugs. PMID- 29017008 TI - Template-Free Hierarchical Self-Assembly of Iron Diselenide Nanoparticles into Mesoscale Hedgehogs. AB - The ability of semiconductor nanoparticles (NPs) to self-assemble has been known for several decades. However, the limits of the geometrical and functional complexity for the self-assembled nanostructures made from simple often polydispersed NPs are still continuing to amaze researchers. We report here the self-assembly of primary ~2-4 nm FeSe2 NPs with puck-like shapes into either (a) monocrystalline nanosheets ~5.5 nm thick and ~1000 nm in lateral dimensions or (b) mesoscale hedgehogs ~550 nm in diameter with spikes of ~250 nm in length, and ~10-15 nm in diameter, the path of the assembly is determined by the concentration of dodecanethiol (DT) in the reaction media. The nanosheets represent the constitutive part of hedgehogs. They are rolled into scrolls and assembled around a single core with distinct radial orientation forming nanoscale "needles" approximately doubling its fractal dimension of these objects. The core is assembled from primary NPs and nanoribbons. The size distribution of the mesoscale hedgehogs can be as low as 3.8%, indicating a self-limited mechanism of the assembly. Molecular dynamics simulation indicates that the primary FeSe2 particles have mobile edge atoms and asymmetric basal surfaces. The top-bottom asymmetry of the puck-like NPs originates from the Fe-rich/Se-rich stripes on the (011) surface of the orthorhombic FeSe2 crystal lattice, displaying 2.7 nm periodicity that is comparable to the lateral size of the primary NPs. As the concentration of DT increases, the NPs bind to additional metal sites, which increases the chemical and topographic asymmetry and switches the assembly pathways from nanosheets to hedgehogs. These results demonstrate that the self assembly of NPs with non-biological surface ligands and without any biological templates results in morphogenesis of inorganic superstructures with complexity comparable to that of biological assemblies, for instance mimivirus. The semiconductor nature of FeSe2 hedgehogs enables their utilizations in catalysis, drug delivery, optics, and energy storage. PMID- 29017009 TI - Plasma-Facilitated Synthesis of Amidoxime/Carbon Nanofiber Hybrids for Effective Enrichment of 238U(VI) and 241Am(III). AB - Plasma- and chemical-grafted amidoxime/carbon nanofiber hybrids (p-AO/CNFs and c AO/CNFs) were utilized to remove 238U(VI) and 241Am(III) from aqueous solutions, seawater, and groundwater. Characteristic results indicated more nitrogen containing groups in p-AO/CNFs compared to c-AO/CNFs. The maximum adsorption capacities of p-AO/CNFs at pH 3.5 and T = 293 K (588.24 mg of 238U(VI)/g and 40.79 mg of 241Am(III)/g from aqueous solutions, respectively) were significantly higher than those of c-AO/CNFs (263.18 and 22.77 mg/g for 238U(VI) and 241Am(III), respectively), which indicated that plasma-grafting was a highly effective, low-cost, and environmentally friendly method. Adsorption of 238U(VI) on AO/CNFs from aqueous solutions was significantly higher than that of 238U(VI) from seawater and groundwater; moreover, AO/CNFs displayed the highest effective selectivity for 238U(VI) compared to the other radionuclides. Adsorption of 238U(VI) onto AO/CNFs created inner-sphere complexes (e.g., U-C shells) as shown by X-ray absorption fine structure analysis, which was supported by surface complexation modeling. Three inner-sphere complexes gave excellent fits to pH edge and isothermal adsorption of 238U(VI) on the AO/CNFs. These observations are crucial for the utilization of plasma-grafted, AO-based composites in the preconcentration and immobilization of lanthanides and actinides in environmental remediation. PMID- 29017010 TI - On Light-Induced Photoconversion of B800 Bacteriochlorophylls in the LH2 Antenna of the Purple Sulfur Bacterium Allochromatium vinosum. AB - The B800-850 LH2 antenna from the photosynthetic purple sulfur bacterium Allochromatium vinosum exhibits an unusual spectral splitting of the B800 absorption band; i.e., two bands are well-resolved at 5 K with maxima at 805 nm (B800R) and 792 nm (B800B). To provide more insight into the nature of the B800 bacteriochlorophyll (BChl) a molecules, high-resolution hole-burning (HB) spectroscopy is employed. Both white light illumination and selective laser excitations into B800R or B800B lead to B800R -> B800B phototransformation. Selective excitation into B800B leads to uncorrelated excitation energy transfer (EET) to B800R and subsequent B800R -> B800B phototransformation. The B800B -> B800R EET time is 0.9 +/- 0.1 ps. Excitation at 808.4 nm (into the low-energy side of B800R) shows that the lower limit of B800R -> B850 EET is about 2 ps, as the B800R -> B800B phototransformation process could contribute to the corresponding zero-phonon hole width. The phototransformation of B800R leads to a ~ 200 cm-1 average blue-shift of transition energies, i.e., B800R changes into B800B. We argue that it is unlikely that B800-B850 excitonic interactions give rise to a splitting of the B800 band. We propose that the latter is caused by different protein conformations that can lead to both strong or weak hydrogen bond(s) between B800 pigments and the protein scaffolding. Temperature-dependent absorption spectra of B800, which revealed a well-defined isosbestic point, support a two-site model, likely with strongly and weakly hydrogen-bonded B800 BChls. Thus, BChls contributing to B800R and B800B could differ in the position of the proton in the BChl carbonyl-protein hydrogen bond, i.e., proton dynamics along the hydrogen bond may well be the major mechanism of this phototransformation. However, the effective tunneling mass is likely larger than the proton mass. PMID- 29017011 TI - Altered Volatile Organic Compound Profile in Transgenic Rats Bearing A53T Mutation of Human alpha-Synuclein: Comparison with Dopaminergic and Serotonergic Denervation. AB - Early diagnosis of Parkinson's disease (PD) is of great importance due its progressive phenotype. Neuroprotective drugs could potentially slow down disease progression if used at early stages. Previously, we have reported an altered content of volatile organic compounds (VOCs) in the breath of rats following a 50% reduction in striatal dopamine (DA) content induced by 6-hydroxydopamine. We now report on the difference in the breath-print and content of VOCs between rats with mild and severe lesions of DA neurons, serotonergic neuronal lesions, and transgenic (Tg) rats carrying the PD-producing A53T mutation of the SNCA (alpha synuclein) gene. The Tg rats had an increased content of 3-octen-1-ol and 4 chloro-3-methyl phenol in blood, while in brain tissue, hexanal, hexanol, and 2,3 octanedione were present in controls but absent in Tg rats. Levels of 1-heptyl-2 methyl cyclopropane were increased in brain tissue of Tg rats. The data confirm the potential of breath analysis for detection of human idiosyncratic as well as autosomal dominant PD. PMID- 29017013 TI - Persistent Self-Association of Solute Molecules in Solution. AB - The structural evolvement of a solute determines the crystallization outcome. The self-association mechanism leading to nucleation, however, remains poorly understood. Our current study explored the solution chemistry of a model compound, tolfenamic acid (TFA), in three different solvents mainly by solution NMR. It was found that hydrogen-bonded pairs of solute-solute or solute-solvent stack with each through forming a much weaker pi-pi interaction as the concentration increases. Depending on the solvent, configurations of the solution species may be retained in the resultant crystal structure or undergo rearrangement. Yet, the pi-pi stacking is always retained in the crystal regardless of the solvent used for the crystallization. The finding suggests that nucleation not only involves the primary intermolecular interaction (hydrogen bonding) but also engages the secondary forces in the self-assembly process. PMID- 29017012 TI - Reactive Transport of U and V from Abandoned Uranium Mine Wastes. AB - The reactive transport of uranium (U) and vanadium(V) from abandoned mine wastes collected from the Blue Gap/Tachee Claim-28 mine site in Arizona was investigated by integrating flow-through column experiments with reactive transport modeling, and electron microscopy. The mine wastes were sequentially reacted in flow through columns at pH 7.9 (10 mM HCO3-) and pH 3.4 (10 mM CH3COOH) to evaluate the effect of environmentally relevant conditions encountered at Blue Gap/Tachee on the release of U and V. The reaction rate constants (km) for the dissolution of uranyl-vanadate (U-V) minerals predominant at Blue Gap/Tachee were obtained from simulations with the reactive transport software, PFLOTRAN. The estimated reaction rate constants were within 1 order of magnitude for pH 7.9 (km = 4.8 * 10-13 mol cm-2 s-1) and pH 3.4 (km = 3.2 * 10-13 mol cm-2 s-1). However, the estimated equilibrium constants (Keq) for U-V bearing minerals were more than 6 orders of magnitude different for reaction at circumneutral pH (Keq = 10-38.65) compared to acidic pH (Keq = 10-44.81). These results coupled with electron microscopy data suggest that the release of U and V is affected by water pH and the crystalline structure of U-V bearing minerals. The findings from this investigation have important implications for risk exposure assessment, remediation, and resource recovery of U and V in locations where U-V-bearing minerals are abundant. PMID- 29017014 TI - Effect of Initial Speciation of Copper- and Silver-Based Nanoparticles on Their Long-Term Fate and Phytoavailability in Freshwater Wetland Mesocosms. AB - Ag0- and CuO-engineered nanomaterials (ENMs) or their sulfidized forms are introduced into freshwater wetlands through wastewater effluent and agricultural runoff. Knowledge about the rates of transformations of these ENMs in realistic environments and the impact of the form of the incoming ENM (i.e., sulfidized or pristine) on bioavailability and fate is limited. Here, five freshwater wetland mesocosms were exposed to 3 g of total metal as CuO, CuS, Ag0, or Ag2S ENMs or soluble CuNO3 added weekly for 1 month. Total metal and metal speciation was measured in sediment and plant samples collected 1, 3, 6, and 9 months after addition. The form of the added ENM did not affect the metal distribution, and ENMs distributed similarly to added ionic Cu or Ag. For the dosing condition used, ~50% of the added Ag or Cu metal mass was found in Egeria densa plant tissue, with the remainder primarily in the surficial sediment. Ag0 and CuO ENMs transformed quickly in sediment, with no evidence of CuO and only ~4% of silver present as Ag0 ENM 1 week after the last ENM addition. In contrast to sediment, Ag0 and CuO ENMs were persistent in E. densa tissues for up to 9 and 6 months, respectively. The persistence of ENMs in E. densa suggests that chronic exposures, or food web transfers, for both the transformed and the initially added ENMs are possible. PMID- 29017015 TI - A Twelve-Week Lifestyle Program to Improve Cardiometabolic, Behavioral, and Psychological Health in Hispanic Children and Adolescents. AB - OBJECTIVES: To examine the effectiveness of a 12-week lifestyle program on cardiometabolic, behavioral, and psychological outcomes among overweight Hispanic children and adolescents. DESIGN: A case series study with pre- and post-test analyses. Subjects/Settings/Location: A convenience sample of high-risk pediatric primary care patients (n = 22; 6 girls, 16 boys; M age = 11.73 +/- 1.39 years) and their guardians in the Southeast United States. INTERVENTION: Twice per week 60 min (total of 24 h) of moderate-to-vigorous intensity boxing exercise training, 12 h of nutrition education for guardians, and a 30-min pediatrician appointment. OUTCOME MEASURES: Cardiometabolic (height [m], weight [kg], waist circumference [cm], body-mass index [BMI], BMI-z, BMI%, cholesterol [mg/dL], triglycerides [mg/dL], glucose [mg/dL], and low-density lipoprotein and high density lipoprotein cholesterol [mg/dL]), behavioral (objective free time physical activity [PA] and sedentary time [min/day]), and psychological (self determined exercise motivation) outcomes were measured/calculated, and paired samples t-tests were conducted. RESULTS: A significant reduction was observed in waist circumference t(17) = -2.57, p = 0.020, d = 0.64; BMI% t(15) = -2.53, p = 0.023, d = 0.20; fasting glucose t(15) = -6.43, p < 0.001, d = 1.67; and amotivation (-) t(17) = -2.29, p = 0.036, d = 0.64; whereas a significant increase was identified in moderate t(10) = 4.01, p = 0.002, d = 1.23 and vigorous t(10) = 3.41, p = 0.007, d = 1.07 intensity PA; intrinsic motivation t(17) = 2.71, p = 0.015, d = 0.38; and introjected regulation t(17) = 2.74, p = 0.014, d = 0.64. CONCLUSIONS: A 12-week lifestyle program can be effective in improving selected health markers among overweight Hispanic children and adolescents. The positive changes in fasting glucose, BMI, and waist suggest that the participants are currently at lower risk for both type 2 diabetes and cardiovascular disease as a result of the Confidence, Ownership, Responsibility, and Exercise program. PMID- 29017016 TI - Participation in moderate-to-vigorous leisure time physical activity is related to decreased visceral adipose tissue in adults with spinal cord injury. AB - Increased visceral adiposity places individuals with chronic spinal cord injury (SCI) at increased risk of cardiometabolic disease. The purpose of this study was to identify if people with chronic SCI who participate in any moderate- to vigorous-intensity leisure time physical activity (LTPA) have lower visceral adipose tissue (VAT) area compared with those who report none. Participants included 136 adult men (n = 100) and women (n = 36) with chronic (mean (+/-SD) 15.6 +/- 11.3 years post-injury) tetraplegia (n = 66) or paraplegia (n = 70) recruited from a tertiary rehabilitation hospital. VAT area was assessed via whole-body dual-energy X-ray absorptiometry using a Hologic densitometer and the manufacturer's body composition software. Moderate-to-vigorous LTPA was assessed using the Leisure Time Physical Activity Questionnaire for People with SCI (LTPAQ SCI) or the Physical Activity Recall Assessment for People with SCI (PARA-SCI). Summary scores were dichotomized into any or no participation in moderate-to vigorous LTPA to best represent the intensity described in current population specific physical-activity guidelines. Data were analyzed using univariate and multiple regression analyses to identify the determinants of VAT. Overall, the model explained 67% of the variance in VAT area and included time post-injury, age-at-injury, android/gynoid ratio, waist circumference, and moderate-to vigorous LTPA. Participation in any moderate-to-vigorous LTPA was significantly (95% confidence interval: -34.71 to -2.61, p = 0.02) associated with VAT after controlling for injury-related and body-composition correlates. Moderate-to vigorous LTPA appears to be related to lower VAT area, suggesting potential for LTPA to reduce cardiometabolic disease risk among individuals with chronic SCI. PMID- 29017017 TI - The effect of resistance training set configuration on strength, power, and hormonal adaptation in female volleyball players. AB - The primary purpose of this investigation was to determine the impact of altering the set structure during an 8-week resistance training program on anthropometric, hormonal, and strength power characteristics. Thirty female volleyball players were recruited for participation and then randomly assigned to 1 of 3 resistance training groups: (i) cluster sets (CRT; n = 10), (ii) traditional sets (TRT; n = 10), or (iii) control (CON; n = 10). All athletes were evaluated for thigh and arm circumference, vertical jump, 20-m sprint, 4 * 9-m shuttle-run, 1-repetition maximum (1RM) back squat, bench press, military press, and deadlift prior to and after an 8-week periodized training intervention. Blood samples were taken before and after the 8-week training period to evaluate resting testosterone, cortisol, and insulin-like growth factor 1 responses to the training period. After 8 weeks of training the CRT group displayed a small but significant improvement in vertical jump (CRT: effect size (ES) = 038, 7.1%) performance when compared with the TRT group (ES = 0.34, 5.6%). Both the CRT and TRT training interventions resulted in very large increases in the 1RM squat (CRT: 8.4% +/- 1.2%; TRT: 7.3% +/- 0.6%), bench press (CRT: 8.3% +/- 2.0%; TRT: 8.7% +/- 1.9%), military press (CRT: 5.7% +/- 1.2%; TRT: 5.5% +/- 1.6%), and deadlift (CRT: 8.2% +/- 1.6%; TRT: 8.3% +/- 2.2%). There were no significant differences in 20-m sprint or 4 * 9-m shuttle run times between the CRT, TRT, and CON groups. These results suggest that cluster sets allow for greater improvements in vertical jump performance and equal improvements in strength gains to those seen with traditional sets. PMID- 29017020 TI - MS Research Australia Progress in MS Research 2017. PMID- 29017018 TI - What is the impact of population ageing on the future provision of end-of-life care? Population-based projections of place of death. AB - BACKGROUND: Population ageing represents a global challenge for future end-of life care. Given new trends in place of death, it is vital to examine where the rising number of deaths will occur in future years and implications for health and social care. AIM: To project where people will die from 2015 to 2040 across all care settings in England and Wales. DESIGN: Population-based trend analysis and projections using simple linear modelling. Age- and gender-specific proportions of deaths in hospital, care home, home, hospice and 'other' were applied to numbers of expected future deaths. Setting/population: All deaths (2004-2014) from death registration data and predicted deaths (2015-2040) from official population forecasts in England and Wales. RESULTS: Annual deaths are projected to increase from 501,424 in 2014 (38.8% aged 85 years and over) to 635,814 in 2040 (53.6% aged 85 years and over). Between 2004 and 2014, proportions of home and care home deaths increased (18.3%-22.9% and 16.7%- 21.2%) while hospital deaths declined (57.9%-48.1%). If current trends continue, numbers of deaths in care homes and homes will increase by 108.1% and 88.6%, with care home the most common place of death by 2040. If care home capacity does not expand and additional deaths occur in hospital, hospital deaths will start rising by 2023. CONCLUSION: To sustain current trends, end-of-life care provision in care homes and the community needs to double by 2040. An infrastructure across care settings that supports rising annual deaths is urgently needed; otherwise, hospital deaths will increase. PMID- 29017019 TI - Results of Combined, Single-Session Arthrocentesis and Dextrose Prolotherapy for Symptomatic Temporomandibular Joint Syndrome: A Case Series. AB - OBJECTIVE: Arthrocentesis and prolotherapy are nonsurgical treatments for temporomandibular joint (TMJ) diseases. This study aimed to evaluate the treatment of hypermobility, pain, and displacement of the TMJ by consecutively performing arthrocentesis and prolotherapy in the same session. MATERIALS AND METHODS: In this study, 10 adults with disc displacement and painful, hypermobile TMJ were selected. Arthrocentesis and prolotherapy were consecutively performed using a 30% dextrose solution that was simultaneously injected into five areas: posterior disc attachment, superior joint space, superior and inferior capsular attachments, and stylomandibular ligament. Paired t-test, McNemar test, and chi square test were used to assess the maximum mouth opening, clicking sounds, pain, and subluxation of the TMJ. Patients with rheumatoid arthritis and parafunctional habits such as teeth clenching and grinding and biting of the cheeks or any other objects and those who had undergone surgery were excluded from this study. RESULTS: A total of 10 participants (36.20 +/- 7.06 years old, 7 women and 3 men) received a single treatment session of combined arthrocentesis and prolotherapy at the same office visit. Subluxation frequency and pain significantly decreased after the first week of treatment (p < 0.05). Subluxation also decreased at the 3 month follow-up (p < 0.05). Clicking sound values did not significantly change at any of the follow-up time points. Maximum mouth opening values decreased at all follow-up time points compared to baseline (p < 0.05). CONCLUSION: A single session of combined arthrocentesis and prolotherapy to treat symptomatic TMJ safely and significantly improved the subluxation and pain after 1 week and subluxation after 3 months compared to baseline status. The maximum mouth opening significantly decreased at all follow-up time points. Future studies assessing multiple treatment sessions are warranted. PMID- 29017021 TI - Chemical composition of the essential oils isolated from peel of three citrus species and their mosquitocidal activity against Culex pipiens. AB - Three essential oils (EOs) were isolated from the peel of citrus fruits Citrus reticulata L., Citrus reticulata chinase Blanco and Citrus sinensis (L.) Osbeck (Family: Rutaceae) and evaluated against Culex pipiens L.1758 (Family: Culicidae). Chemical composition indicated that the EOs were rich in essential phytochemicals including hydrocarbons, monoterpenes and sesquiterpenes. These constituents revealed some variability among the oils displaying interesting chemotypes limonene (35-51%), 1R-alpha-pinene (1.04-2.5%), gamma-terpinene (0.46 5.65%) and sabinene (0.51-5.42%). The toxicity proved that C. sinensis oil had more effect than C. reticulata chinase and C. reticulata oils against larvae (LC50 = 15.35, 16.11 and 32.84 mg/L, respectively). However, C. reticulate was the most active as fumigant against adults (LC50 2.74 MUL/L air). The in vivo effect on acetylcholine esterase (AChE), carboxyl esterase (CbE), acid phosphatase (ACP), alkaline phosphatase (ALP), adenosine triphosphatase (ATPase) and glutathione-S-transferase (GST) were also demonstrated. To the best of our knowledge, this is the first report about the chemical composition and mosquitocidal activity of C. reticulata chinase essential oils. Conclusively, the tested essential oils could be used as eco-friendly alternatives in mosquitoes control programme. PMID- 29017022 TI - Isometric parameters in the monitoring of maximal strength, power, and hypertrophic resistance-training. AB - This study monitored strength-training adaptations via isometric parameters throughout 2 * 10 weeks of hypertrophic (HYP I-II) or 10 weeks maximum strength (MS) followed by 10 weeks power (P) training with untrained controls. Trainees performed bilateral isometric leg press tests analyzed for peak force (maximal voluntary contraction (MVC)) and rate of force development (RFD) every 3.5 weeks. These parameters were compared with dynamic performance, voluntary and electrically induced isometric contractions, muscle activity, and cross-sectional area (CSA) in the laboratory before and after 10 and 20 weeks. RFD increased similarly during the first 7 weeks (HYP I, 44% +/- 53%; MS, 48% +/- 55%, P < 0.05), but RFD continued to increase up to 65% +/- 61% from baseline (P < 0.01) only during P. These increases were concomitant with enhanced dynamic performances of 1-repetition maximum (1RM) (HYP I, 8% +/- 6%; MS, 11% +/- 6%, P < 0.001), and explosive repetitions during P (11% +/- 15%, P < 0.05). Time to reach peak RFD differed (P < 0.001) between HYP (mean 42 +/- 20 ms) and MS-P (mean 31 +/- 12 ms) groups because of training. The changes in MVC correlated with the changes in CSA during weeks 1-20 (HYP I-II, r = 0.664; MS-P, r = 0.595, P <= 0.05), as well as changes in 1RM (r = 0.724, P < 0.05) during weeks 11-20 (HYP II). Muscle activity increased during MS and P only. Both MVC and RFD improvements reflected combinations of central and peripheral adaptations. RFD parameters may be effective tools to evaluate adaptations, particularly during maximal strength/power training, while MVC cannot distinguish between strength or muscle mass changes. Monitoring RFD provided important information regarding plateaus in RFD improvement, which were observed in dynamic explosive performances after HYP II compared with P. PMID- 29017024 TI - Genetic heterogeneity among Vibrio alginolyticus strains, and design of a PCR based identification method using gyrB gene sequence. AB - Vibrio alginolyticus, a pathogen among humans and marine animals, is ubiquitous in marine environments. The aims of this study were to analyze the relationships between genetic diversity and origins, and to develop new primers based on the gyrB sequence to identify V. alginolyticus isolated from various sources. To determine the genetic diversity of this bacterium, an arbitrarily primed polymerase chain reaction (AP-PCR) technique was performed on 36 strains of V. alginolyticus isolated from diarrhea patients and from diseased marine animals and environments in southern Thailand. The results showed distinct DNA fingerprints of all strains, indicating that they are genetically heterogeneous. For species-specific identification of V. alginolyticus, primers targeting the gyrB gene of V. alginolyticus were developed. Thirty reference Vibrio spp., 13 non-Vibrio spp., and 160 strains of V. alginolyticus isolated from various sources in southern Thailand were used to evaluate the specificity of these primers. Our results showed that the gyrB primers could specifically identify V. alginolyticus from all sample types. In addition, the detection limit of the PCR was at least 95 pg of DNA template. Therefore, we concluded that the newly designed gyrB primers are rapid, highly sensitive, and specific to identify V. alginolyticus isolated from various sources. PMID- 29017026 TI - Germline Genome Protection on an Evolutionary Treadmill. AB - Preservation of genome integrity is a conserved, essential function, yet genome defense machinery evolves rapidly. In this issue of Developmental Cell, Parhad et al. (2017) harness an evolution-guided approach to define the genetic determinants of genome defense and to reveal the molecular and cellular mechanisms shaped by adaptive evolution. PMID- 29017025 TI - Global nursing in an Ebola viral haemorrhagic fever outbreak: before, during and after deployment. AB - BACKGROUND: Nurses are on the forefront and play a key role in global disaster responses. Nevertheless, they are often not prepared for the challenges they are facing and research is scarce regarding the nursing skills required for first responders during a disaster situation. OBJECTIVES: To investigate how returnee nursing staff experienced deployment before, during and after having worked for the Red Cross at an Ebola Treatment Center in Kenema, West Africa, and to supply knowledge on how to better prepare and support staff for viral haemorrhagic fever outbreaks. METHODS: A descriptive, cross-sectional approach. Questionnaires were administered to nurses having worked with patients suffering from Ebola in 2014 and 2015. Data collection covered aspects of pre-, during and post-deployment on clinical training, personal health, stress management, leadership styles, socio cultural exposure and knowledge transfer, as well as attitudes from others. Data was analysed using both quantitative and qualitative methods. RESULTS: Response rate was 88%: forty-four nurses from 15 different countries outside West Africa answered the questionnaire. The respondents identified the following needs for improvement: increased mental health and psychosocial support and hands-on coping strategies with focus on pre- and post-deployment; more pre-deployment task oriented clinical training; and workload reduction, as exhaustion is a risk for safety. CONCLUSIONS: This study supplies knowledge on how to better prepare health care staff for future viral haemorrhagic fever outbreaks and other disasters. Participants were satisfied with their pre-deployment physical health preparation, whereas they stressed the importance of mental health support combined with psychosocial support after deployment. Furthermore, additional pre clinical training was requested. PMID- 29017023 TI - Maternal iron nutriture as a critical modulator of fetal alcohol spectrum disorder risk in alcohol-exposed pregnancies. AB - Alcohol consumption during pregnancy places the fetus at risk for permanent physical, cognitive, and behavioral impairments, collectively termed fetal alcohol spectrum disorder (FASD). However, prenatal alcohol exposure (PAE) outcomes vary widely, and growing evidence suggests that maternal nutrition is a modifying factor. Certain nutrients, such as iron, may modulate FASD outcomes. Untreated gestational iron deficiency (ID) causes persistent neurodevelopmental deficits in the offspring that affect many of the same domains damaged by PAE. Although chronic alcohol consumption enhances iron uptake and elevates liver iron stores in adult alcoholics, alcohol-abusing premenopausal women often have low iron reserves due to menstruation, childbirth, and poor diet. Recent investigations show that low iron reserves during pregnancy are strongly associated with a worsening of several hallmark features in FASD including reduced growth and impaired associative learning. This review discusses recent clinical and animal model findings that maternal ID worsens fetal outcomes in response to PAE. It also discusses underlying mechanisms by which PAE disrupts maternal and fetal iron homeostasis. We suggest that alcohol-exposed ID pregnancies contribute to the severe end of the FASD spectrum. PMID- 29017028 TI - Lessons from Yeast on How to Avoid Stress Eating. AB - Cellular survival during periods of acute environmental stress is essential for single-celled organisms. Reporting in Nature Cell Biology, Saad et al. (2017) identify reversible aggregation of the metabolic enzyme pyruvate kinase under environmental stress and propose a method to protect and store proteins for immediate use post-stress. PMID- 29017027 TI - Microtubule Sliding within the Bridging Fiber Pushes Kinetochore Fibers Apart to Segregate Chromosomes. AB - During cell division, mitotic spindle microtubules segregate chromosomes by exerting forces on kinetochores. What forces drive chromosome segregation in anaphase remains a central question. The current model for anaphase in human cells includes shortening of kinetochore fibers and separation of spindle poles. Both processes require kinetochores to be linked with the poles. Here we show, by combining laser ablation, photoactivation, and theoretical modeling, that kinetochores can separate without any attachment to one spindle pole. This separation requires the bridging fiber, a microtubule bundle that connects sister kinetochore fibers. Bridging fiber microtubules in intact spindles slide apart with kinetochore fibers, indicating strong crosslinks between them. We conclude that sliding of microtubules within the bridging fibers drives pole separation and pushes kinetochore fibers poleward by the friction of passive crosslinks between these fibers. Thus, sliding within the bridging fiber works together with the shortening of kinetochore fibers to segregate chromosomes. PMID- 29017030 TI - Accessing the Phenotype Gap: Enabling Systematic Investigation of Paralog Functional Complexity with CRISPR. AB - Single-gene knockout experiments can fail to reveal function in the context of redundancy, which is frequently observed among duplicated genes (paralogs) with overlapping functions. We discuss the complexity associated with studying paralogs and outline how recent advances in CRISPR will help address the "phenotype gap" and impact biomedical research. PMID- 29017029 TI - Fgf10-Hippo Epithelial-Mesenchymal Crosstalk Maintains and Recruits Lung Basal Stem Cells. AB - The lung harbors its basal stem/progenitor cells (BSCs) in the protected environment of the cartilaginous airways. After major lung injuries, BSCs are activated and recruited to sites of injury. Here, we show that during homeostasis, BSCs in cartilaginous airways maintain their stem cell state by downregulating the Hippo pathway (resulting in increased nuclear Yap), which generates a localized Fgf10-expressing stromal niche; in contrast, differentiated epithelial cells in non-cartilaginous airways maintain quiescence by activating the Hippo pathway and inhibiting Fgf10 expression in airway smooth muscle cells (ASMCs). However, upon injury, surviving differentiated epithelial cells spread to maintain barrier function and recruit integrin-linked kinase to adhesion sites, which leads to Merlin degradation, downregulation of the Hippo pathway, nuclear Yap translocation, and expression and secretion of Wnt7b. Epithelial derived Wnt7b, then in turn, induces Fgf10 expression in ASMCs, which extends the BSC niche to promote regeneration. PMID- 29017031 TI - Angiopoietin-like 4 Is a Wnt Signaling Antagonist that Promotes LRP6 Turnover. AB - Angiopoietin-like 4 (ANGPTL4) is a secreted signaling protein that is implicated in cardiovascular disease, metabolic disorder, and cancer. Outside of its role in lipid metabolism, ANGPTL4 signaling remains poorly understood. Here, we identify ANGPTL4 as a Wnt signaling antagonist that binds to syndecans and forms a ternary complex with the Wnt co-receptor Lipoprotein receptor-related protein 6 (LRP6). This protein complex is internalized via clathrin-mediated endocytosis and degraded in lysosomes, leading to attenuation of Wnt/beta-catenin signaling. Angptl4 is expressed in the Spemann organizer of Xenopus embryos and acts as a Wnt antagonist to promote notochord formation and prevent muscle differentiation. This unexpected function of ANGPTL4 invites re-interpretation of its diverse physiological effects in light of Wnt signaling and may open therapeutic avenues for human disease. PMID- 29017033 TI - Russia's new Lysenkoism. AB - During the late 1940s and 1950s, a pseudo-scientific concept based on Marxist Leninist ideology became internationally known as 'Lysenkoism'. Lysenkoism was a neo-Lamarckian idea, claiming that in crop plants, such as wheat, environmental influences are heritable via all cells of the organism. Lysenkoism was applied to agriculture during the Stalin era with disastrous consequences. Despite the triumphs of modern genetics, and the disproval of Lysenkoism, recent years have seen a 're-thinking' of this doctrine in Russia. This disturbing pro-Lysenko movement, which is accompanied by a growing sympathy for Stalin, claims to have its scientific roots in modern epigenetics, specifically the heritability of variation by mechanisms other than changes in DNA sequence. Based on recent research on the model plant Arabidopsis thaliana, its is clear that Lysenkoism has nothing to do with heritable 'epigenetic' modifications. Biologists should defend science against ideological and political interferences. PMID- 29017034 TI - Transvection. AB - Fukaya and Levine explain the basic features of the genetic phenomenon of transvection, a special class of genetic complementation of mutant alleles on homologous chromosomes. PMID- 29017035 TI - Bee cognition. AB - Maeterlinck did not mean to suggest that honeybees rival humans in intelligence - rather he saw in the bee a qualitatively different form of intelligence, tailored to the challenges of a profoundly different kind of society and lifestyle. Insects are strange "aliens from inner space", with sensory and cognitive worlds wholly different from our own. The 19th century discovery that ants can detect ultraviolet light triggered a golden age in the exploration of the diversity of sensory systems of insects (and indeed other animals), identifying such abilities as magnetic compasses, electrosensitivity, polarization vision, and peculiar locations for sense organs such as the infrared sensors on the abdomens of some beetles or photoreceptors on the genitalia of some butterflies. Could insect minds be equally strange and diverse? PMID- 29017032 TI - A Mechanism Coupling Systemic Energy Sensing to Adipokine Secretion. AB - Adipocytes sense systemic nutrient status and systemically communicate this information by releasing adipokines. The mechanisms that couple nutritional state to adipokine release are unknown. Here, we investigated how Unpaired 2 (Upd2), a structural and functional ortholog of the primary human adipokine leptin, is released from Drosophila fat cells. We find that Golgi reassembly stacking protein (GRASP), an unconventional secretion pathway component, is required for Upd2 secretion. In nutrient-rich fat cells, GRASP clusters in close proximity to the apical side of lipid droplets (LDs). During nutrient deprivation, glucagon mediated increase in calcium (Ca2+) levels, via calmodulin kinase II (CaMKII) phosphorylation, inhibits proximal GRASP localization to LDs. Using a heterologous cell system, we show that human leptin secretion is also regulated by Ca2+ and CaMKII. In summary, we describe a mechanism by which increased cytosolic Ca2+ negatively regulates adipokine secretion and have uncovered an evolutionarily conserved molecular link between intracellular Ca2+ levels and energy homeostasis. PMID- 29017036 TI - A combined 3D-SIM/SMLM approach allows centriole proteins to be localized with a precision of ~4-5 nm. AB - Centrioles are small barrel-shaped structures that form centrosomes and cilia [1]. Centrioles assemble around a central cartwheel comprising the Sas-6 and Ana2/STIL proteins. The amino termini of nine Sas-6 dimers form a central hub of ~12 nm radius from which nine dimer spokes radiate, placing the Sas-6 carboxyl termini at the outer edge of the ~60 nm radius cartwheel [2]. Several centriole proteins are distributed in a toroid around the cartwheel, and super-resolution light microscopy studies have measured the average radii of these ~100-200 nm radius toroids with a 'precision' - or standard deviation (s.d. or 1sigma) - of +/-~10-40 nm. The organization of Ana2/STIL within the cartwheel, however, has not been resolvable. Here, we develop methods to calculate the average toroidal radius of centriolar proteins in the ~20-60 nm range with a s.d. of just +/-~4-5 nm, revealing that the amino and carboxyl termini of Ana2 are located in the outer cartwheel region. PMID- 29017037 TI - Dawn illumination prepares desert cyanobacteria for dehydration. AB - Desert biological soil crusts (BSC), among the harshest environments on Earth, are formed by the adhesion of soil particles to polysaccharides excreted mainly by filamentous cyanobacteria (see [1] and references therein). These species are the main primary producers in this habitat where they cope with various stressors including frequent hydration-dehydration cycles. Water is mainly provided as early-morning dew, followed by dehydration with rising temperatures and declining relative humidity. Earlier studies focused on community structure and cyanobacterial activities in various BSCs [1,2]. They identified genes present in dehydration-tolerant, but not -sensitive cyanobacteria [3], and suggested that abiotic conditions during natural dehydration (Figure 1A) are critical for the recovery upon rewetting. Inability of Leptolyngbya ohadii, which is abundant in the BSC examined here, to recover after rapid desiccation (Figure 1B) [4] suggested that the cells must prepare themselves toward forthcoming dehydration, but the nature of the signal involved was unknown. We show here that the rising dawn illumination, perceived by photo-sensors, serves as the signal inciting BSC inhabiting cyanobacteria to prepare for forthcoming dehydration. L. ohadii filaments were exposed to simulated natural conditions from the morning of October 14th 2009, using our environmental chamber that enables accurate reproduction of BSC environment [4] (Supplemental Figure S1A). Samples were withdrawn at specific time points (Figure 1A), followed by RNA extraction and global transcript profiling (accession PRJNA391854). Four hours of dehydration led to up-regulation of 567 genes and down-regulation of 1597 (by more than 2 fold). Since BSC-inhabiting organisms have not been used as genetic models, the functions of 3258 (43.5% of the 7487 L. ohadii genes [3]) are unknown. Nevertheless, a pronounced rise in transcript levels of genes involved in carbon metabolism, transport, osmolyte production, energy dissipation and other cellular activities was observed. On the other hand, a declining transcript abundance for genes involved in light harvesting, photosynthetic metabolism, protein biosynthesis, cell division and other pathways was detected. The analysis unraveled clear distinctions between early- and late-responding genes. Supplemental Table S1 lists the 40 strongest differentially expressed genes verified by RT-qPCR and used in further analyses. PMID- 29017038 TI - Northern pygmy right whales highlight Quaternary marine mammal interchange. AB - The pygmy right whale, Caperea marginata, is the most enigmatic living whale. Little is known about its ecology and behaviour, but unusual specialisations of visual pigments [1], mitochondrial tRNAs [2], and postcranial anatomy [3] suggest a lifestyle different from that of other extant whales. Geographically, Caperea represents the only major baleen whale lineage entirely restricted to the Southern Ocean. Caperea-like fossils, the oldest of which date to the Late Miocene, are exceedingly rare and likewise limited to the Southern Hemisphere [4], despite a more substantial history of fossil sampling north of the equator. Two new Pleistocene fossils now provide unexpected evidence of a brief and relatively recent period in geological history when Caperea occurred in the Northern Hemisphere (Figure 1A,B). PMID- 29017039 TI - Sleep Origins: Restful Jellyfish Are Sleeping Jellyfish. AB - What is the 'simplest' animal that sleeps? When did sleep first evolve? Do all animals sleep? Tantalizing hints to answers come from new research showing that jellyfish, one of the earliest evolving groups of animals, have a sleep-like restful state. PMID- 29017040 TI - Plant Biology: Unravelling the Transient Physiological Role for PHO1 in the Seed. AB - During seed development, an important transfer of nutrients occurs between the seed coat and the embryo. A new study reveals that, for inorganic phosphate (Pi), this function is transiently performed by PHO1, a protein associated previously with Pi loading into the xylem. PMID- 29017041 TI - Evolution: A Parthenogenetic Nematode Shows How Animals Become Sexless. AB - Most animals have male and female sexes, implying that sex is ancient and beneficial; yet some have survived for millions of years without sex. The genome of the parthenogenetic nematode Diploscapter pachys gives clues as to how 'ancient asexual' animals can exist. PMID- 29017042 TI - Retrotransposons: Stowaways in the Primordial Germline. AB - In order to succeed, retrotransposon transcripts must identify the subset of nuclei that will be transmitted to offspring. A new study reveals that the primordial germline is a hideout for retrotransposon transcripts, providing early access to future gametes. PMID- 29017043 TI - Plant Biology: Rethinking Structure-Function Relationships in Guard Cells. AB - Recent findings highlight the role of polar reinforcement in guard cell function, which simultaneously improves our understanding of stomatal mechanics and questions our long-standing beliefs about structurally important factors. PMID- 29017044 TI - Muscle Development: Nucleating Microtubules at the Nuclear Envelope. AB - Microtubule-organizing centers move from centrosomes to the nuclear envelope during muscle development. The KASH protein Nesprin-1alpha recruits pericentriolar material to the surface of myotube nuclei, where it nucleates microtubules to ensure even spacing of nuclei within the developing myotube. PMID- 29017045 TI - Behavioural Ecology: Spiders Play the Imitation Game. AB - Examples of mimicry are widely celebrated because of the remarkable physical similarities they entail. A new study shows how an ant-mimicking spider uses behaviour to create the illusion of antennae, while walking in a manner resembling ants following pheromone trails. PMID- 29017046 TI - Insect Vision: A Neuron that Anticipates an Object's Path. AB - Dragonflies are superb aerial predators, plucking tiny insect prey from the sky. This ability depends on a visual system that has fascinated scientists for decades, and now one of its visual-target-detecting neurons has been shown to anticipate the image path of prey. PMID- 29017047 TI - Cell Biology: Capturing Formin's Mechano-Inhibition. AB - Formins polymerize actin filaments for the cytokinetic contractile ring. Using in vitro reconstitution of fission yeast contractile ring precursor nodes containing formins and myosin, a new study shows that formin-mediated polymerization is strongly inhibited upon the capture and pulling of actin filaments by myosin, a result that has broad implications for cellular mechanosensing. PMID- 29017049 TI - Exploiting the Hidden Treasure of Detained Introns. AB - Many mammalian genes contain poorly spliced introns, resulting in nuclear detention of partially spliced transcripts, which may be exploited to modulate gene expression. In this issue of Cancer Cell, Braun et al. report that the arginine methyltransferase PRMT5 is critical for tumor cell proliferation by regulating numerous detained introns. PMID- 29017050 TI - Neuroblastoma Metastases: Leveraging the Avian Neural Crest. AB - Neuroblastoma, an embryonal cancer of neural crest origin, shows metastases frequently at diagnosis. In this issue of Cancer Cell, Delloye-Bourgeois and colleagues demonstrate that neuroblastoma cell lines and patient-derived xenografts engraft and adopt a metastatic program in chick embryos. They identify Sema3C as a candidate switch that regulates metastatic spread. PMID- 29017051 TI - Tumor Suppression by p53: Bring in the Hippo! AB - In this issue of Cancer Cell, Mello et al. investigated how p53 suppresses pancreatic cancer and discovered a key role for the tyrosine phosphatase PTPN14, a p53 transcriptional target. PTPN14 restrains YAP, curbing its potential oncogenic effects. The p53-PTPN14-YAP axis highlights the importance of signaling pathway coordination in cancer prevention. PMID- 29017048 TI - Embracing Uncertainty in Reconstructing Early Animal Evolution. AB - The origin of animals, one of the major transitions in evolution, remains mysterious. Many key aspects of animal evolution can be reconstructed by comparing living species within a robust phylogenetic framework. However, uncertainty remains regarding the evolutionary relationships between two ancient animal lineages - sponges and ctenophores - and the remaining animal phyla. Comparative morphology and some phylogenomic analyses support the view that sponges represent the sister lineage to the rest of the animals, while other phylogenomic analyses support ctenophores, a phylum of carnivorous, gelatinous marine organisms, as the sister lineage. Here, we explore why different studies yield different answers and discuss the implications of the two alternative hypotheses for understanding the origin of animals. Reconstruction of ancient evolutionary radiations is devilishly difficult and will likely require broader sampling of sponge and ctenophore genomes, improved analytical strategies and critical analyses of the phylogenetic distribution and molecular mechanisms underlying apparently conserved traits. Rather than staking out positions in favor of the ctenophores-sister or the sponges-sister hypothesis, we submit that research programs aimed at understanding the biology of the first animals should instead embrace the uncertainty surrounding early animal evolution in their experimental designs. PMID- 29017052 TI - Cellular Origin of Androgen Receptor Pathway-Independent Prostate Cancer and Implications for Therapy. AB - In this issue of Cancer Cell, Bluemn et al. report that ~20% of metastatic castration-resistant prostate cancers express neither AR nor neuroendocrine genes and show AR pathway-independent growth, driven instead by a FGFR/MAPK/ID1 signaling cascade. These results provide a strong rationale for co-targeting AR bypass pathways with initial AR antagonism. PMID- 29017053 TI - Apoptosis, Up the Ante. AB - The clinical success of the BH3-mimetic venetoclax has generated increasing interest to target BCL2 family proteins in oncology. In this issue of Cancer Cell, Reyna and colleagues demonstrate the potential of a pharmacological activator of the pro-apoptotic protein BAX to suppress acute myeloid leukemia both alone and together with venetoclax. PMID- 29017055 TI - Microenvironment-Driven Shift of Cohesion/Detachment Balance within Tumors Induces a Switch toward Metastasis in Neuroblastoma. AB - Neuroblastoma (NB) is a childhood cancer arising from sympatho-adrenal neural crest cells. Disseminated forms have high frequency of multiple tumoral foci whose etiology remains unknown; NB embryonic origin limits investigations in patients and current models. We developed an avian embryonic model driving human NB tumorigenesis in tissues homologous to patients. We found that aggressive NBs display a metastatic mode, secondary dissemination via peripheral nerves and aorta. Through tumor transcriptional profiling, we found that NB dissemination is induced by the shutdown of a pro-cohesion autocrine signal, SEMA3C, which constrains the tumoral mass. Lowering SEMA3C levels shifts the balance toward detachment, triggering NB cells to collectively evade the tumor. Together with patient cohort analysis, this identifies a microenvironment-driven pro-metastatic switch for NB. PMID- 29017054 TI - The Stromal Niche for Epithelial Stem Cells: A Template for Regeneration and a Brake on Malignancy. AB - Stromal restraint of cancer growth and progression-emerging as a widespread phenomenon in epithelial cancers such as bladder, pancreas, colon, and prostate appears rooted in stromal cell niche activity. During normal tissue repair, stromal niche signals, often Hedgehog-induced, promote epithelial stem cell differentiation as well as self-renewal, thus specifying a regenerating epithelial pattern. In the case of cancerous tissue, stromal cell-derived differentiation signals in particular may provide a brake on malignant growth. Understanding and therapeutic harnessing of the role of stroma in cancer restraint may hinge on our knowledge of the signaling programs elaborated by the stromal niche. PMID- 29017056 TI - Mitotic Spindle Assembly and Genomic Stability in Breast Cancer Require PI3K C2alpha Scaffolding Function. AB - Proper organization of the mitotic spindle is key to genetic stability, but molecular components of inter-microtubule bridges that crosslink kinetochore fibers (K-fibers) are still largely unknown. Here we identify a kinase independent function of class II phosphoinositide 3-OH kinase alpha (PI3K C2alpha) acting as limiting scaffold protein organizing clathrin and TACC3 complex crosslinking K-fibers. Downregulation of PI3K-C2alpha causes spindle alterations, delayed anaphase onset, and aneuploidy, indicating that PI3K-C2alpha expression is required for genomic stability. Reduced abundance of PI3K-C2alpha in breast cancer models initially impairs tumor growth but later leads to the convergent evolution of fast-growing clones with mitotic checkpoint defects. As a consequence of altered spindle, loss of PI3K-C2alpha increases sensitivity to taxane-based therapy in pre-clinical models and in neoadjuvant settings. PMID- 29017057 TI - A p53 Super-tumor Suppressor Reveals a Tumor Suppressive p53-Ptpn14-Yap Axis in Pancreatic Cancer. AB - The p53 transcription factor is a critical barrier to pancreatic cancer progression. To unravel mechanisms of p53-mediated tumor suppression, which have remained elusive, we analyzed pancreatic cancer development in mice expressing p53 transcriptional activation domain (TAD) mutants. Surprisingly, the p5353,54 TAD2 mutant behaves as a "super-tumor suppressor," with an enhanced capacity to both suppress pancreatic cancer and transactivate select p53 target genes, including Ptpn14. Ptpn14 encodes a negative regulator of the Yap oncoprotein and is necessary and sufficient for pancreatic cancer suppression, like p53. We show that p53 deficiency promotes Yap signaling and that PTPN14 and TP53 mutations are mutually exclusive in human cancers. These studies uncover a p53-Ptpn14-Yap pathway that is integral to p53-mediated tumor suppression. PMID- 29017060 TI - Integrating Proteomics and Transcriptomics for Systematic Combinatorial Chimeric Antigen Receptor Therapy of AML. AB - Chimeric antigen receptor (CAR) therapy targeting CD19 has yielded remarkable outcomes in patients with acute lymphoblastic leukemia. To identify potential CAR targets in acute myeloid leukemia (AML), we probed the AML surfaceome for overexpressed molecules with tolerable systemic expression. We integrated large transcriptomics and proteomics datasets from malignant and normal tissues, and developed an algorithm to identify potential targets expressed in leukemia stem cells, but not in normal CD34+CD38- hematopoietic cells, T cells, or vital tissues. As these investigations did not uncover candidate targets with a profile as favorable as CD19, we developed a generalizable combinatorial targeting strategy fulfilling stringent efficacy and safety criteria. Our findings indicate that several target pairings hold great promise for CAR therapy of AML. PMID- 29017061 TI - Decreased functional connectivity in schizophrenia: The relationship between social functioning, social cognition and graph theoretical network measures. AB - Schizophrenia is a complex disorder in which abnormalities in brain connectivity and social functioning play a central role. The aim of this study is to explore small-world network properties, and understand their relationship with social functioning and social cognition in the context of schizophrenia, by testing functional connectivity differences in network properties and its relation to clinical behavioral measures. Resting-state fMRI time series data were acquired from 23 patients diagnosed with schizophrenia and 23 healthy volunteers. The results revealed that patients with schizophrenia show significantly decreased connectivity between a range of brain regions, particularly involving connections among the right orbitofrontal cortex, bilateral putamen and left amygdala. Furthermore, topological properties of functional brain networks in patients with schizophrenia were characterized by reduced path length compared to healthy controls; however, no significant difference was found for clustering coefficient, local efficiency or global efficiency. Additionally, we found that nodal efficiency of the amygdala and the putamen were significantly correlated with the independence-performance subscale of social functioning scale (SFC), and Reading the Mind in the Eyes test; however, the correlations do not survive correction for multiple comparison. The current results help to clarify the relationship between social functioning deficits and topological brain measures in schizophrenia. PMID- 29017062 TI - Integration of the TGx-28.65 genomic biomarker with the flow cytometry micronucleus test to assess the genotoxicity of disperse orange and 1,2,4 benzenetriol in human TK6 cells. AB - In vitro gene expression signatures to predict toxicological responses can provide mechanistic context for regulatory testing. We previously developed the TGx-28.65 genomic biomarker from a database of gene expression profiles derived from human TK6 cells exposed to 28 well-known compounds. The biomarker comprises 65 genes that can classify chemicals as DNA damaging or non-DNA damaging. In this study, we applied the TGx-28.65 genomic biomarker in parallel with the in vitro micronucleus (MN) assay to determine if two chemicals of regulatory interest at Health Canada, disperse orange (DO: the orange azo dye 3-[[4-[(4 Nitrophenyl)azo]phenyl] benzylamino]propanenitrile) and 1,2,4-benzenetriol (BT: a metabolite of benzene) are genotoxic or non-genotoxic. Both chemicals caused dose dependent declines in relative survival and increases in apoptosis. A strong significant increase in MN induction was observed for all concentrations of BT; the top two concentrations of DO also caused a statistically significant increase in MN, but these increases were <2-fold above controls. TGx-28.65 analysis classified BT as genotoxic at all three concentrations and DO as genotoxic at the mid and high concentrations. Thus, although DO only caused a small increase in MN, this response was sufficient to induce a cellular DNA damage response. Benchmark dose modeling confirmed that BT is much more potent than DO. The results strongly suggest that follow-up work is required to assess whether DO and BT are also genotoxic in vivo. This is particularly important for DO, which may require metabolic activation by bacterial gut flora to fully induce its genotoxic potential. Our previously published data and this proof of concept study suggest that the TGx-28.65 genomic biomarker has the potential to add significant value to existing approaches used to assess genotoxicity. PMID- 29017063 TI - European status and perspectives on early detection and intervention in at-risk mental state and first episode psychosis: Viewpoint from the EPA section for prevention of mental disorders. PMID- 29017064 TI - Negative social comparisons and psychosis proneness in a healthy adolescent population. AB - There is growing evidence of an association between negative social comparisons (NSC) and both psychosis, and psychosis proneness. The majority of the work thus far, however, has focused largely on one type of NSC, namely, social rank. Whilst social rank is clearly an important factor, an individual's perception of belonging is likely also of importance; particularly, when considering individuals from collectivistic cultures such as China, where greater emphasis is placed on fitting into the group. There is also limited research investigating what factors may contribute towards the relationship between NSC and psychosis proneness, and to what extent this relationship may be due to common familial factors. To address these issues, we examined whether (1) Social rank and perceived belonging predict negative, positive and depressive psychotic experiences in a Chinese, adolescent, twin and sibling population, (2) coping styles moderate the impact of these relationships and (3), there is a familial association between NSC and psychosis proneness. Both social rank and perceived belonging were found to predict the negative and depressive dimensions of psychosis. These relationships were moderated by problem-focused coping styles. Interestingly, the association between perception of belonging, and negative psychotic experiences was familial-and stronger in Monozygotic twins-indicating perhaps shared aetiology due to common genes. Our findings highlight NSC as potential vulnerability markers for negative and depressive psychotic experiences, and suggest potentially different aetiological pathways amongst different NSC and different psychotic experiences. On a clinical level, our findings emphasize the need to consider coping styles when treating at-risk individuals. PMID- 29017059 TI - Direct Activation of BAX by BTSA1 Overcomes Apoptosis Resistance in Acute Myeloid Leukemia. AB - The BCL-2 family protein BAX is a central mediator of apoptosis. Overexpression of anti-apoptotic BCL-2 proteins contributes to tumor development and resistance to therapy by suppressing BAX and its activators. We report the discovery of BTSA1, a pharmacologically optimized BAX activator that binds with high affinity and specificity to the N-terminal activation site and induces conformational changes to BAX leading to BAX-mediated apoptosis. BTSA1-induced BAX activation effectively promotes apoptosis in leukemia cell lines and patient samples while sparing healthy cells. BAX expression levels and cytosolic conformation regulate sensitivity to BTSA1. BTSA1 potently suppressed human acute myeloid leukemia (AML) xenografts and increased host survival without toxicity. This study provides proof-of-concept for direct BAX activation as a treatment strategy in AML. PMID- 29017065 TI - Synthesis and bioelectrochemical behavior of aromatic amines. AB - Four aromatic amines 1-amino-4-phenoxybenzene (A1), 4-(4-aminophenyloxy) biphenyl (A2), 1-(4-aminophenoxy) naphthalene (A3) and 2-(4-aminophenoxy) naphthalene (A4) were synthesized and characterized by elemental, spectroscopic (FTIR, NMR), mass spectrometric and single crystal X-ray diffraction methods. The compounds crystallized in monoclinic crystal system with space group P21. Intermolecular hydrogen bonds were observed between the amine group and amine/ether acceptors of neighboring molecules. Electrochemical investigations were done using cyclic voltammetry (CV), square wave voltammetry (SWV) and differential pulse voltammetry (DPV). CV studies showed that oxidation of aromatic amines takes place at about 0.9 V (vs. Ag/AgCl) and the electron transfer (ET) process has irreversible nature. After first scan reactive intermediate were generated electrochemically and some other cathodic and anodic peaks also appeared in the succeeding scans. DPV study revealed that ET process is accompanied by one electron. DNA binding study of aromatic amines was performed by CV and UV-visible spectroscopy. These investigations revealed groove binding mode of interaction of aromatic amines with DNA. PMID- 29017058 TI - Androgen Receptor Pathway-Independent Prostate Cancer Is Sustained through FGF Signaling. AB - Androgen receptor (AR) signaling is a distinctive feature of prostate carcinoma (PC) and represents the major therapeutic target for treating metastatic prostate cancer (mPC). Though highly effective, AR antagonism can produce tumors that bypass a functional requirement for AR, often through neuroendocrine (NE) transdifferentiation. Through the molecular assessment of mPCs over two decades, we find a phenotypic shift has occurred in mPC with the emergence of an AR-null NE-null phenotype. These "double-negative" PCs are notable for elevated FGF and MAPK pathway activity, which can bypass AR dependence. Pharmacological inhibitors of MAPK or FGFR repressed the growth of double-negative PCs in vitro and in vivo. Our results indicate that FGF/MAPK blockade may be particularly efficacious against mPCs with an AR-null phenotype. PMID- 29017066 TI - A psychometric evaluation of the Posttraumatic Cognitions Inventory with Veterans seeking treatment following military trauma exposure. AB - Trauma-related beliefs have salient relationships to the development and maintenance of Posttraumatic Stress Disorder (PTSD) following stress exposure. The Posttraumatic Cognitions Inventory (PTCI) has the potential to be a standard assessment of this critical construct. However, some critical aspects of validity and reliability appear to vary by population. To date, the PTCI has not been psychometrically evaluated for use with military-specific traumas such as combat and military sexual trauma (MST). Based on exploratory and confirmatory analyses with 949 Veterans seeking trauma-focused treatment for military traumas, we found a four factor model (negative view of the self, negative view of the world, self blame, and negative beliefs about coping competence) provided the best fit. In contrast, the original three factor model was not confirmed. Both models demonstrated convergent and discriminative validity. Although gender was associated with PTCI total and factor scores, differences did not persist after controlling for trauma type. MST was associated with higher PTCI scores even when controlling for gender, though the clinical magnitude of these differences is likely negligible. Internal reliability validity was demonstrated with PTCI total and subscale scores. PMID- 29017067 TI - Clinically relevant response and remission outcomes in cariprazine-treated patients with bipolar I disorder. AB - BACKGROUND: Rates of response and remission are measures that endorse the clinical significance of treatment. Cariprazine is FDA approved for the acute treatment of schizophrenia and manic or mixed episodes associated with bipolar I disorder in adults. Post hoc analyses of pooled data from 3 pivotal trials of cariprazine in manic/mixed episodes associated with bipolar I disorder were conducted to investigate the effect of cariprazine on various criteria of response and remission. METHODS: The constituent studies were 3-week randomized, double-blind, placebo-controlled, multicenter, parallel-group phase II/III studies in adult patients (age 18-65 years) with bipolar I disorder (NCT00488618, NCT01058096, NCT01058668). Post hoc analyses included Young Mania Rating Scale (YMRS) outcomes for response (>=50% decrease in score), remission (total score <=12 and <=8), cumulative remission, and global improvement. Additionally, composite remission (YMRS total score <=12 plus Montgomery-Asberg Depression Rating Scale total score <=12) and worsening/switch to depression (MADRS total score >=15) by week were investigated. RESULTS: Rates of response and remission were significantly greater for cariprazine versus placebo on every measure evaluated (P < .01 all analyses); the estimated number needed to treat for each measure was <=10. There was no evidence of worsening/switch to depression. LIMITATIONS: Post hoc analyses, short treatment duration, no active comparator. DISCUSSION: Cariprazine-treated patients with bipolar I disorder attained clinically significant improvement in manic symptoms as shown by significantly greater rates of response and remission versus placebo; improvement in manic symptoms did not induce depressive symptoms. PMID- 29017068 TI - Allopurinol augmentation in acute mania: A meta-analysis of placebo-controlled trials. AB - BACKGROUND: Allopurinol is a xanthine oxidase inhibitor commonly used in the treatment of gout. Recent studies have also shown its promise as an adjunctive treatment for manic episodes in bipolar 1 disorder, possibly through mechanisms involving the purinergic pathway. However, its efficacy across studies has been inconsistent, so we conducted a meta-analysis of the published controlled studies with the goal of determining the efficacy profile of allopurinol as an adjunctive treatment for mania in bipolar disorder. METHODS: An online search was conducted using PubMed for placebo-controlled, randomized, double-blind, clinical trials (RCTs) using the terms "allopurinol," "bipolar," "mania," "manic," and "YMRS" and a meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses statement. RESULTS: Five studies met the criteria for inclusion. Three of the five studies were inpatient treatments, one study was outpatient treatment, and one study had a mixture of both. All studies used allopurinol as an adjunct in treating acute mania in bipolar disorder subjects. Four of the studies showed efficacy in the primary outcome measure between allopurinol vs. placebo groups with significantly reduced YMRS scores while one showed no significant effect size between the allopurinol and placebo groups. The overall effect size for the four studies is d = 0.294. No significant difference in side effects were found between groups for any of the studies. CONCLUSION: The data suggest that allopurinol may have some efficacy as an adjunct in reducing mania symptoms during acute manic episodes in patients with bipolar disorder. Adjunctive allopurinol efficacy may be related to the mood stabilizer used. Additional controlled trials with greater sample sizes, homogenous dosing, and consistent treatment modalities are needed to determine optimal clinical application. PMID- 29017069 TI - Comprehensive self-control training benefits depressed college students: A six month randomized controlled intervention trial. AB - BACKGROUND: Depressive disorder was associated with dysfunctional self regulation. The current study attempted to design and test a comprehensive self control training (CSCT) program with an overall emphasis on behaviral activation in depressed Chinese college students. METHODS: Participants included 74 students who had diagnosed with major depression, they were randomly assigned to one of the two groups: intervention group (n=37), and control group (n=37). The intervention participants received an eight-week CSCT and four-month follow-up consolidation program, as compared to the control group who received only pre post-and-follow-up measurements. All participants measured Beck Depression Inventory (BDI-II) and Self-control Scale (SCS) at three time points: baseline, post-training, and four-month follow-up. RESULTS: The dropout rates were 6 (8.1%) in the intervention group and 3 (4.1%) in the control group at the end of six month intervention. The general linear model repeated measures analysis of variance revealed that comparing with the control group, the intervention group participants had more increase in their trait self-control score, at the meantime, their depressive symptoms had significantly improved. Univariate and logistic regression analyses revealed that participants with milder baseline depressive symptoms were more likely to benefit from CSCT interventions; depression improvement was also associated with the number of sessions attended. LIMITATIONS: The main limitation was related to the small sample size which consisted of college students who were relatively young and well educated. CONCLUSIONS: The current study demonstrates that CSCT program could temporarily enhance self-control capacity as well as improve depressive symptoms; participants who are mildly to moderately depressed, and who could adhere to the training protocol are more likely to benefit from the intervention. PMID- 29017070 TI - Conducting electrospun fibres with polyanionic grafts as highly selective, label free, electrochemical biosensor with a low detection limit for non-Hodgkin lymphoma gene. AB - A highly selective, label-free sensor for the non-Hodgkin lymphoma gene, with an aM detection limit, utilizing electrochemical impedance spectroscopy (EIS) is presented. The sensor consists of a conducting electrospun fibre mat, surface grafted with poly(acrylic acid) (PAA) brushes and a conducting polymer sensing element with covalently attached oligonucleotide probes. The sensor was fabricated from electrospun NBR rubber, embedded with poly(3,4 ethylenedioxythiophene) (PEDOT), followed by grafting poly(acrylic acid) brushes and then electrochemically polymerizing a conducting polymer monomer with ssDNA probe sequence pre-attached. The resulting non-Hodgkin lymphoma gene sensor showed a detection limit of 1aM (1 * 10-18mol/L), more than 400 folds lower compared to a thin-film analogue. The sensor presented extraordinary selectivity, with only 1%, 2.7% and 4.6% of the signal recorded for the fully non complimentary, T-A and G-C base mismatch oligonucleotide sequences, respectively. We suggest that such greatly enhanced selectivity is due to the presence of negatively charged carboxylic acid moieties from PAA grafts that electrostatically repel the non-complementary and mismatch DNA sequences, overcoming the non-specific binding. PMID- 29017071 TI - NMR studies of ligand binding. AB - NMR spectroscopy is an established tool in drug discovery, but its strength is commonly regarded to be largely confined to the early stages of hit discovery and fragment based drug design, where NMR offers unique capabilities of characterizing the binding modes of ligand molecules that bind sufficiently weakly to be in rapid exchange between bound and free state. Here we, first, provide a meta-review of recent reviews on NMR studies of ligand binding and, second, review recent progress towards NMR characterization of the ligand binding mode in stable protein-ligand complexes, with particular emphasis on the global positioning system (GPS) approach enabled by paramagnetic lanthanide tags. PMID- 29017072 TI - More than a feeling: The bidirectional convergence of semantic visual object and somatosensory processing. AB - Prevalent theories of semantic processing assert that the sensorimotor system plays a functional role in the semantic processing of manipulable objects. While motor execution has been shown to impact object processing, involvement of the somatosensory system has remained relatively unexplored. Therefore, we developed two novel priming paradigms. In Experiment 1, participants received a vibratory hand prime (on half the trials) prior to viewing a picture of either an object interacted primarily with the hand (e.g., a cup) or the foot (e.g., a soccer ball) and reported how they would interact with it. In Experiment 2, the same objects became the prime and participants were required to identify whether the vibratory stimulation occurred to their hand or foot. In both experiments, somatosensory priming effects arose for the hand objects, while foot objects showed no priming benefits. These results suggest that object semantic knowledge bidirectionally converges with the somatosensory system. PMID- 29017073 TI - Noninvasive detection of focal brain hyperthermia related to continuous epileptic activities using proton MR spectroscopy. AB - Recent studies using rat models suggested that epileptic discharges (EDs) can induce focal brain hyperthermia, but such ED-related hyperthermia has not been confirmed in humans. We examined hyperthermia of the focus of epilepsy using noninvasive proton magnetic resonance spectroscopy (1H-MRS) thermometry. We recruited six pediatric patients with refractory daily seizures, continuous interictal epileptic discharges, and concordant focus lesions on MRI who had undergone comprehensive presurgical exams. 1H-MRS thermometry calculated the temperatures of the presumed epileptogenic lesions, and we examined the contralateral counterparts in each patient as controls. As a result, the mean temperature of the epileptogenic foci (36.81 degrees C) was significantly higher than that of the controls (36.01 degrees C). The mean difference was 0.81 degrees C (95%CI: 0.22-1.39, p=0.017). 1H-MRS thermometry may have the ability to noninvasively detect focal brain hyperthermia related to continuous EDs in human subjects, and to contribute to a better understanding and focus detection of epilepsy. PMID- 29017074 TI - Morphological and Molecular Characterization of Aggregata spp. Frenzel 1885 (Apicomplexa: Aggregatidae) in Octopus vulgaris Cuvier 1797 (Mollusca: Cephalopoda) from Central Mediterranean. AB - Coccidian parasites of the genus Aggregata are known to parasitize cephalopods as definitive hosts, however one of the genus members, A. octopiana, has shown an unresolved phylogeny within the same definitive host, the common octopus (Octopus vulgaris). Our study represents a large-scale investigation aimed at characterizing morphological traits and phylogeny of A. octopiana isolated from O. vulgaris inhabiting three distinct geographic areas of the central Mediterranean: The Adriatic, Ionian and Tyrrhenian Seas. The morphology of sporogonic stages of the parasite in octopus tissues was assessed by light and electron microscopy; molecular characterization has been carried out using the 18S rRNA locus. Our results support the hypothesis that two morphologically and genetically different A. octopiana infect O. vulgaris in the investigated areas of the Mediterranean Sea. Additional nuclear and mitochondrial markers for Aggregata should provide further information and better resolution of its phylogeny. PMID- 29017075 TI - A simple dilute and shoot approach incorporated with pentafluorophenyl (PFP) column based LC-MS/MS assay for the simultaneous determination of trimethylamine N-oxide and trimethylamine in spot urine samples with high throughput. AB - Determination of trimethylamine N-oxide (TMAO) and trimethylamine (TMA) in biological and environmental samples has drawn great attention recently due to their increasing association with human health and disease. It remains a challenge to simultaneously quantify TMAO and TMA in a simple, fast and cost effective manner due to pre-analytical and analytical constraints. For the first time, we describe a dilute and shoot approach combined with LC-MS/MS detection for the simultaneous measurement of the analytes in spot urine samples with high throughput. Compared to the existing methods, the merits of the proposed assay include the use of a simple dilute and shoot approach (100-fold), small sample volume (10MUL), short LC run on a PFP column (4.0min) and multi-analyte MS detection without sample cleanup, derivatization, evaporation and a HILIC column. Dilution, LC and MS parameters were optimized in detail. Method validation yielded a wide linearity for TMAO (1.0-400MUg/mL) and TMA (0.025-10MUg/mL) with a respective limit of quantitation of 1.0 and 0.025MUg/mL. The quantitation was not affected by 41 major urinary components, structurally-related drugs and metabolites. The intra- and inter-day assay precisions were <=3.6% and recoveries were 93.3%-103.3% for spiked quality control samples. The clinical utility of the alternative spot urine sampling approach compared to conventional 24h urine collection was supported by a significant correlation between the two sampling strategies (n=20, p<0.0001, r=0.757-0.862; slope=0.687-1.170) and no statistical difference in day-to-day biological variability (n=20). The applicability and reliability of the assay was verified by the assessment of reference intervals in a cohort of 118 healthy people. The proposed assay would be beneficial for the rapid and accurate determination of the increasingly important TMAO and TMA demanded in clinical, environmental, pharmaceutical and nutritional fields. PMID- 29017076 TI - Determination of the phytochemical composition of Jingning fang and the in vivo pharmacokinetics of its metabolites in rat plasma by UPLC-MS/MS. AB - Jingning fang (JNF) is an effective Traditional Chinese Medicine (TCM) which is used for the treatment of Attention Deficit Hyperactivity Disorder (ADHD). To clarify the bioactive constituents of JNF, a Thermo Q ExactiveTM Plus OrbitrapTM mass spectrometer was used in this study. More than 127 chemical compounds were isolated and identified tentatively in the JNF extract, while 42 prototype constituents with 4 potential metabolites were identified tentatively in rat plasma. A method for simultaneous determination of polygalaxanthone III (PAIII), sibiricose A5 (A5), sibiricose A6 (A6), 3, 6'-disinapoyl sucrose (3,6'-DISS), tenuifoliside C (TEC), tenuifolin B (TNB), verbascoside (VCE), heterophyllin B (HEB) and schisandrin (SCH) in rat was developed and validated using polydatin (PLN) and psoralen (PSN) as internal standards. All calibration curves proved favorable linearity (R2>=0.9923) in linear ranges. The lower limit of quantification (LLOQ) was 2.5ng/mL for PAIII, A5, 3, 6'-DISS, TNB, VCE, HEB and SCH, 1.0ng/mL for A6 and TEC, respectively. Intra-day and inter-day precisions didn't exceed 14.0% for all the analytes. Extraction recoveries and matrix effects of analytes and IS were acceptable. The validated method has been successfully applied to the pharmacokinetics (PK) studies of the nine compounds in JNF. These findings are useful for predicting the bioactive components of JNF, and will aid in optimizing dose regimens of the drug. PMID- 29017077 TI - Intermolecular interaction in nucleobases and dimethyl sulfoxide/water molecules: A DFT, NBO, AIM and NCI analysis. AB - This study aims to cast light on the physico-chemical nature and energetics of interactions between the nucleobases and water/DMSO molecules which occurs through the non-conventional CH?O/N-H bonds using a comprehensive quantum chemical approach. The computed interaction energies do not show any appreciable change for all the nucleobase-solvent complexes, conforming the experimental findings on the hydration enthalpies. Compared to water, DMSO form complexes with high interaction energies. The quantitative molecular electrostatic potentials display a charge transfer during the complexation. NBO analysis shows the nucleobase-DMSO complexes, have higher stabilization energy values than the nucleobase-water complexes. AIM analysis illustrates that the in the nucleobase DMSO complexes, SO?H-N type interaction have strongest hydrogen bond strength with high EHB values. Furthermore, the Laplacian of electron density and total electron density were negative indicating the partial covalent nature of bonding in these systems, while the other bonds are classified as noncovalent interactions. EDA analysis indicates, the electrostatic interaction is more pronounced in the case of nucleobase-water complexes, while the dispersion contribution is more dominant in nucleobase-DMSO complexes. NCI-RDG analysis proves the existence of strong hydrogen bonding in nucleobase-DMSO complex, which supports the AIM results. PMID- 29017078 TI - FGF1 and IGF1-conditioned 3D culture system promoted the amplification and cancer stemness of lung cancer cells. AB - Lung cancer stem cells (LCSCs) are considered as the cellular origins of metastasis and relapse of lung cancer. However, routine two-dimensional culture system (2D-culture) hardly mimics the growth and functions of LCSCs in vivo and therefore significantly decreases the stemness activity of LCSCs. In this study, we constructed a special BME-based three-dimensional culture system (3D-culture) to amplify LCSCs in human lung adenocarcinoma cell line A549 cells and found 3D culture promoted the enrichment and amplification of LCSCs in A549 cells displaying higher proliferation potential and invasion activity, but lower apoptosis. The expression and secretion levels of FGF1 and IGF1 were dramatically elevated in 3D-culture compared to 2D-culture. After growing in FGF1 and IGF1 conditioned 3D-culture, the proportion of LCSCs with specific stemness phenotypes in A549 cells significantly increased compared to that in conventional 3D suspension culture system. Further results indicated that FGF1 and IGF1 promoted the amplification and cancer stemness of LCSCs dependent on MAPK signaling pathway. Our data firstly established a growth factors-conditioned 3D-culture for LCSCs and demonstrated the effects of FGF1 and IGF1 in promoting the enrichment and amplification of LCSCs which might provide a feasible cell model in vitro for both mechanism study and translational research on lung cancer. PMID- 29017080 TI - Prognostic significance of postoperative spikes varied in different surgical procedures for mesial temporal sclerosis. AB - PURPOSE: We conducted this study to compare the occurrence and prognostic significance of early postoperative interictal epileptiform discharges (IEDs) on seizure outcomes between corticoamygdalohippocampectomy (CAH) and selective amygdalohippocampectomy (SAH). METHODS: We reviewed our database of patients who had epilepsy surgery with hippocampus atrophy or signal changes on brain MRIs and pathology of mesial temporal sclerosis. One hundred and seventy-seven CAH and 39 SAH patients were enrolled. Postoperative EEG within 30days, other preoperative variables and seizure outcome 2years after surgery were obtained for analysis. Engel's IA and IB were defined as seizure-free. RESULTS: There was no significant difference in the seizure-free rate between the two procedures (127 (71.8%) of CAH vs 30 (76.9%) of SAH, p=0.51). Postoperative IEDs were more frequently seen in the SAH group (64.1%) than in the CAH group (29.9%), p<0.001. The IEDs in the SAH group did not show correlation with the seizure outcome 2 years after surgery. In the CAH group, patients who had no postoperative IEDs showed a higher seizure-free rate compared to those with IEDs (78.2% vs 56.6%, p=0.003; OR 2.267, 95% CI 1.09-4.73, p=0.029 in multivariate logistic regression). CONCLUSIONS: Early postoperative IEDs are more frequently seen in SAH than in CAH. Unlike in patients with CAH, the presence of IEDs after SAH was not a predictor of seizure recurrence. The type of surgery should be considered while utilizing postoperative IEDs for evaluating the prognosis. PMID- 29017079 TI - Effects of the fibrous topography-mediated macrophage phenotype transition on the recruitment of mesenchymal stem cells: An in vivo study. AB - Host responses to a biomaterial critically influence its in vivo performance. Biomaterial architectures that can recruit endogenous host stem cells could be beneficial in tissue regeneration or integration. Here, we report that the fibrous topography of biomaterials promotes the recruitment of host mesenchymal stem cells (MSCs) by facilitating the macrophage phenotype transition from M1-to M2. Electrospun poly (epsilon-caprolactone) fiber (PCL-fiber) films were implanted into the subcutaneous tissues of rats, and the response of host cells to the PCL-fiber was evaluated and compared with those of solid ones (PCL-solid). During the initial post-implantation period, greater numbers of cells were recruited and adhered to the PCL-fiber compared to the PCL-solid, and the cells exhibited the M1 phenotype, which was supported by the enhanced adsorption of complement C3a to the implanted PCL-fiber. Subsequently, the PCL-fiber supported the macrophage phenotype transition from M1-to-M2, which was confirmed by the ratio of M2/M1 marker (CD163/CCR7)-positive cells and by the expression of M2/M1 markers (arginase-1/iNOS). The PCL-fiber also reduced the formation of foreign body giant cells. MSC marker (CD29, CD44, and CD90)-positive cells began to appear as early as day 4 on the PCL-fiber, while few MSCs were observed on the PCL-solid. The MSCs migration ex vivo assay showed that MSCs substantially migrated across the trans-wells toward the implanted PCL-fiber. The cells on the implanted PCL-fiber expressed and secreted substantial levels of SDF-1 (CXCL-12), while anti-SDF-1 neutralizing antibody abrogated the MSCs migration. Taken together, these results provide evidence that the fibrous topography of biomaterials enhances the recruitment of MSCs by promoting macrophage recruitment, facilitating M1-to-M2 transition, and enhancing SDF-1 secretion. PMID- 29017082 TI - Temporal lobe surgery for intractable epilepsy in children: What to do with the hippocampus? AB - PURPOSE: Resection of the hippocampus can cause verbal memory decline, especially in the pediatric population. Thus, preservation of the hippocampus can be crucial for the quality of life of children with intractable temporal lobe epilepsy (TLE) who are candidates for epilepsy surgery. We investigated techniques that determine whether the hippocampus is part of the epileptogenic zone and the outcomes of pediatric surgery aimed to spare the hippocampus. METHODS: We accessed data of children with normal hippocampus on MRI, who underwent surgery for medically refractory TLE. To identify epileptogenic areas, electrocorticography was performed in patients with space occupying lesions adjacent to the hippocampus, and long term invasive monitoring in patients with nonlesional TLE. Postoperative seizure control was classified according to Engel I-IV; Class I indicates seizure-free. RESULTS: Eleven females and 11 males met study inclusion criteria; the mean age at surgery was 11.3 years. Cortical and hippocampal electrocorticography was performed in 15 patients and long term invasive hippocampal monitoring in seven. The hippocampus was preserved in 16 patients (73%) while hippocampectomy was performed in 6 (27%). At the end of a mean follow-up of 3.5 years, 94% (15/16) of the patients who did not undergo hippocampectomy were classified as Engel I, compared to 50% (3/6) who underwent hippocampectomy. CONCLUSION: Sparing the hippocampus in temporal lobe epilepsy surgery is possible with excellent seizure outcome, while using the proper intraoperative technique. PMID- 29017083 TI - Social workers' views on pre-trial therapy in cases of child sexual abuse in South Africa. AB - This study sought to explore anecdotal reports that social workers in South Africa are often advised to postpone therapy with child complainants of sexual abuse until after the child's testimony, based on concerns of legal professionals that therapeutic interventions could influence the child's testimony. Applying purposive sampling and a qualitative research study, individual and focus group interviews were conducted with 18 social workers and one psychologist that provide therapeutic services to child complainants of sexual abuse in the Gauteng province. Interviews were audio-recorded, transcribed and independently analyzed by both researchers, performing thematic analysis. Emerging themes include a lack of directives in terms of the provision of pre-trial therapy for child victims of sexual abuse, current practices and challenges in this regard. Recommendations for the way forward are presented. Limitations and future research will be discussed. PMID- 29017081 TI - Safety of intravenous lacosamide in critically ill children. AB - PURPOSE: Acute seizures are common in critically ill children. These patients would benefit from intravenous anti-seizure medications with few adverse effects. We reviewed the usage and effects of intravenous lacosamide in critically ill children with seizures or status epilepticus. METHODS: This retrospective series included consecutive patients who received at least one dose of intravenous lacosamide from April 2011 to February 2016 in the pediatric intensive care unit of a quaternary care children's hospital, including patients with new lacosamide initiation and continuation of outpatient oral lacosamide. Dosing and prescribing practices were reviewed. Adverse effects were defined by predefined criteria, and most were evaluated during the full admission. RESULTS: We identified 51 intensive care unit admissions (47 unique patients) with intravenous lacosamide administration. Lacosamide was utilized as a third or fourth-line anti-seizure medication for acute seizures or status epilepticus in the lacosamide-naive cohort. One patient experienced bradycardia and one patient experienced a rash that were considered potentially related to lacosamide. No other adverse effects were identified, including no evidence of PR interval prolongation. CONCLUSIONS: Lacosamide was well tolerated in critically ill children. Further study is warranted to evaluate the effectiveness of earlier lacosamide use for pediatric status epilepticus and acute seizures. PMID- 29017084 TI - Disseminated adenovirus infection after allogeneic stem cell transplant and the potential role of brincidofovir - Case series and 10 year experience of management in an adult transplant cohort. AB - BACKGROUND: Adenovirus infection is a recognized complication following haematopoietic stem cell transplantation. We present a review of our experience of these infections in our transplant cohort over 10 years including 3 patients treated with the novel antiviral brincidofovir. OBJECTIVES: We aimed to describe the presentation, response to treatment and outcomes of adult stem cell transplant patients with disseminated adenovirus infection. STUDY DESIGN: All adult cases of disseminated adenovirus infection following haematopoietic stem cell transplant in our unit between 2005 and 2015 were identified. Transplant details and data on timing of diagnosis, course of infection, viral co-infection and treatment were collected. RESULTS: Of 733 patients transplanted, 10 patients had disseminated infection, including 4 male and 6 female patients with median age of 36.5 (range 19-59) years. 6/10 received an allograft from an unrelated donor. Median post-transplant time to detection of viraemia was 67days (range 20 1140days). Median peak viral load was 3133 copies/ml (352-11,000,000) in survivors received cidofovir alone, one cidofovir then brincidofovir and two brincidofovir alone. 8/10 p and 1,580,000 copies/ml (41,999-3,000.000) in those who died. Five patientsatients had a decrease in viral load following antivirals and/or reduction in immunosuppression including all on brincidofovir. Three died on treatment. CONCLUSIONS: Disseminated adenovirus infection is uncommon in adult transplant patients and uncertainties remain surrounding effective treatment. In our cohort, brincidofovir has shown promise in treatment of adenoviral infection. However, randomized controlled studies are required to confirm this impression. PMID- 29017085 TI - Diseases of the pancreas and suicide mortality: A nationwide nested case-control study among patients with mental health disorders in Taiwan. AB - OBJECTIVE: Diseases of the pancreas, especially pancreatitis, have been implicated as possible risk factors for psychiatric illnesses, such as depression and anxiety disorder. This nested case-control study aimed to investigate the association between diseases of the pancreas and completed suicide in a psychiatric population-based study. METHODS: The case group comprised 6568 completed suicides (ICD-9: E950-E959, E980-989) patients from the national mortality database between January 1, 2002 and December 1, 2010. These cases were compared with 6568 gender-, age-, residence-, and insurance premium-matched controls. Both suicide and non-suicide study patients were drawn from a group with previous psychiatric diagnoses. The risk of suicide among patients with diseases of the pancreas was analyzed using a conditional logistic regression model that controlled for alcohol-related disorder, drug dependence, schizophrenia, depressive disorder, bipolar disorder, anxiety disorder, Charlson comorbidity score, and outpatient visits. RESULTS: Disease of the pancreas was an independent risk factor for psychiatric patients who had completed suicide when adjusted for clinical and other comorbid factors. Among these covariates, alcohol related disorders partially mediate the suicide risk among patients with disease of the pancreas, and mental disorders may not mediate this suicide risk. CONCLUSIONS: Diseases of the pancreas were associated with increased risk of completed suicide after controlling for potential confounding factors. PMID- 29017086 TI - Dose-dependent mortality involving convulsions due to subarachnoid Urografin(r) injection in rats. AB - An ionically hypertonic contrast medium Urografin(r) was inadvertently administered into the subarachnoid space of an individual and this resulted in convulsions and acute respiratory failure. We examined the effects of subarachnoid Urografin(r) injections on the rat central nervous system. The onset and frequency of the convulsions, as well as fatality, were dependent on the amount of Urografin(r) administered. No convulsions were observed in rats receiving injections of hypertonic NaCl solution or saline. The results confirmed that subarachnoid injections of Urografin(r) cause convulsions and death, as previously reported in human cases, and our study ascertained the causal relationship between the above malpractice and fatal outcomes. PMID- 29017087 TI - Detection of butane gas inhalation at 16days after hypoxic encephalopathy: A case report. AB - In Japan, there are increasing reports of death by poisoning following butane abuse. To determine the specific cause of death in such cases, it is important to confirm the presence of fuel gas components in the body, although careful analysis is required because of their volatile properties. In most reported cases, the subject died suddenly during or immediately after butane aspiration. Thus, the butane concentration in the samples from the deceased should be relatively high. Herein, we present a case of an 18-year-old man found with cardiopulmonary arrest, who then exhibited hypoxic encephalopathy for 16days in a hospital. At autopsy, we detected hypoxic encephalopathy, pneumonia, and ischemia reperfusion injury of the myocardium, while the cause of cardiac arrest remained unclear. Toxicological analysis was then performed for fuel gas components in several specimens collected at autopsy. Results showed that n-butane and isobutane were detected in the adipose tissue at 16days after inhalation, indicating a role of butane gas inhalation as the cause of death. These data suggest that adipose tissue may be the most appropriate analysis sample to be collected at postmortem in cases where involvement of volatile and fat-soluble gas inhalation is suspected. PMID- 29017088 TI - Anterior cingulate cortex sulcation and its differential effects on conflict monitoring in bilinguals and monolinguals. AB - The role of the anterior cingulate cortex (ACC) in modulating the effect of bilingual experience on cognitive control has been reported at both functional and structural neural levels. Individual differences in the ACC sulcal patterns have been recently correlated with cognitive control efficiency in monolinguals. We aimed to investigate whether differences of ACC sulcation mediate the effect of bilingualism on cognitive control efficiency. We contrasted the performance of bilinguals and monolinguals during a cognitive control task (i.e., the Flanker Task) using a stratification based on the participants' ACC sulcal features. We found that performance of the two groups was differentially affected by ACC sulcation. Our findings provide the first evidence that early neurodevelopmental mechanisms may modulate the effect of different environmental backgrounds - here, bilingual vs monolingual experience - on cognitive efficiency. PMID- 29017090 TI - Combinatory effects of low concentrations of 17alpha-etinylestradiol and citalopram on non-reproductive behavior in adult zebrafish (Danio rerio). AB - Sewage effluents contain pharmaceuticals, personal care products and industrial chemicals, exposing aquatic organisms to complex mixtures. The consequences of exposure to combinations of different classes of drugs in fish are largely unknown. In this study, we exposed adult zebrafish (Danio rerio) males and females for two weeks to low, environmentally relevant concentrations of the endocrine disrupting chemical 17alpha-etinylestradiol (EE2) and the selective serotonin re-uptake inhibitor (SSRI) citalopram, alone and in combination, and analyzed behaviors of importance for population fitness, scototaxis (light/dark preference), the novel tank test and shoal cohesion. Control water contained 0.4ng/L EE2 and the measured exposure concentrations were 0.9ng/L EE2 (nominal 0.1) and 1ng/L EE2 (nominal 0.5). The measured concentrations of citalopram were 0.1 (nominal 0.1) and 0.4MUg/L (nominal 0.5). Both EE2 exposures increased anxiety in males in the scototaxis test, with significantly longer latency periods before entering and fewer visits to the white zone of the tank. The combined exposures (0.9ng/L EE2+0.1MUg/L citalopram and 1ng/L EE2+0.4MUg/L citalopram) resulted in abolishment of effects of EE2, with shorter latency period and more transitions to white than for fish exposed to EE2 alone. In the novel tank test, the results surprisingly indicated lower anxiety after both EE2 and citalopram exposure. Significantly more transitions to the upper half of the tank observed in males exposed to 0.1MUg/L citalopram alone compared to control males. Males exposed to EE2 (0.9ng/L) had shorter latency period to the upper half. Combination exposure resulted in a longer latency and fewer transitions to the upper half compared to both control, EE2- and citalopram-exposed males. Males exposed to the combination spent significantly less time in the upper half than males EE2 or citalopram-exposed males. Females exposed to 1ng/L EE2 had fewer transitions to the upper half than the control group and females exposed to 0.4MUg/L citalopram. In the shoaling test, males exposed to 0.1MUg/L citalopram+0.9ng/L EE2 showed more transitions away from peers than males exposed to 0.1MUg/L citalopram alone. In conclusion, low concentrations of EE2, closely above the predicted no effect concentration (NOEC) of 0.1ng/L, created anxiety like behavior in zebrafish males. Citalopram showed marginal effects at these low concentrations but in the combination exposure the behavioral effects of EE2 were abolished. This is an initial effort to understand the effects of cocktails of anthropogenic substances contaminating aquatic environments. PMID- 29017089 TI - Reduced interhemispheric executive control network coupling in men during early cocaine abstinence: A pilot study. AB - BACKGROUND: Individuals who use cocaine have fewer cognitive resources needed to maintain abstinence. This is evidenced by blunted brain function during cognitive control tasks and reduced communication between brain regions associated with cognitive function. For instance, relapse vulnerability is heightened in individuals with less communication between the right and left frontoparietal executive control network (ECN). Given that recent cocaine use enhances such communication, it is plausible that recency of cocaine use influences interhemispheric ECN communication. However, it is unclear whether ECN communication weakens over the course of early cocaine abstinence, which may then enhance relapse risk. METHODS: In ten men with cocaine use disorder, we conducted a preliminary assessment of the relationship between the number of days since last cocaine use (1-3days) and interhemispheric ECN coupling using resting state functional magnetic resonance imaging (fMRI). RESULTS: Reduced interhemispheric ECN coupling was associated with increasing days since last cocaine use; weaker coupling was also associated with lower urine cocaine metabolite concentrations. This association was more prominent in prefrontal than parietal ECN-subregions. CONCLUSIONS: Preliminary results indicate that resting state interhemispheric ECN coupling weakens within the first few days following last cocaine use. Because of the known link between reduced ECN interhemispheric coupling and relapse vulnerability, these results suggest that relapse risk may increase the longer an individual abstains during an early quit attempt. Treatments focused on reversing this coupling deficit may facilitate abstinence. PMID- 29017091 TI - The regulation of cell polarity by lipid transfer proteins of the SEC14 family. AB - SEC14 lipid transfer proteins are important regulators of phospholipid metabolism. Structural, genetic and cell biological studies in yeast suggest that they help phosphatidylinositol (PtdIns)/phosphoinositide (PIP) kinases to overcome their intrinsic inefficiency to recognize membrane-embedded substrate, thereby playing a key role in PIP homeostasis. Genomes of higher plants encode a high number and diversity of SEC14 proteins, often in combination with other domains. The Arabidopsis SEC14-Nlj16 protein AtSFH1, an important regulator of root hair development, plays an important role in the establishment of PIP microdomains. Key to this mechanism is a highly specific interaction of the Nlj16 domain with PtdIns(4,5)P2 and an interaction-triggered oligomerization of the protein. Nlj16/PtdIns(4,5)P2 interaction depends on a polybasic motif similar to those identified in other regulatory proteins. PMID- 29017092 TI - The need for accuracy and validity in research on nightlife and drinking: A commentary on Devilly et al. and recommendations for future research. AB - Research on nightlife and drinking faces many unique challenges, and validity in research is an important concern. A recent publication by Devilly et al. entitled "SmartStart: Results of a large point of entry study into preloading alcohol and associated behaviours" contains definitions and assumptions about prior work that require more careful consideration. Important issues include: using a definition of pre-drinking which is the same as previous work so that valid comparison can be made, reporting of blood alcohol concentration (BAC) levels that comply with other work, accurate reporting of response rates, and careful consideration of sampling approaches to maximise ethical integrity. Ensuring consistency of definition and accurate representation of previous literature regarding BAC, pre drinking and energy drink use, is important for supplying the broader community with reliable information on which policy decisions can be made. PMID- 29017093 TI - Personality pathology and intentional self-harm: cross-cutting insights from categorical and dimensional models. AB - This paper reviews current literature on the links between personality pathology and intentional self-harm, including nonsuicidal self-injury (NSSI) and suicidal behaviors. Specifically, this review highlights recent advances stemming from longitudinal, epidemiological, and health registry studies, as well as emerging research on pathological personality traits and intentional self-harm, and integrates current knowledge across dimensional and categorical frameworks to provide recommendations for clinical practice and future research. This review provides strong evidence that personality disorders marked by intense and unstable negative affect, detachment/low extraversion, aggression/hostility, and specific facets of impulsivity may be considered risk factors for suicidal behaviors. Further, there is some evidence of a stronger relation between maladaptive personality traits and suicidal versus non-suicidal intentional self harm. PMID- 29017094 TI - Quantifying catastrophic and climate impacted hazards based on local expert opinions. AB - Quantifying the potential costs of catastrophic and climate impacted hazards is a challenging but important exercise as the occurrence of such events is usually associated with high damage and uncertainty. At the local level, there is often a lack of information on rare extreme events, which means that the available data is not sufficient to fit a distribution and derive parameter values for frequency and severity distributions. This paper discusses the use of local assessments of extreme events and utilises expert elicitation in order to obtain values for distribution parameters that will feed into management decisions with regards to quantifying catastrophic risks. We illustrate a simple approach, where a local expert is required to only specify two percentiles of the loss distribution in order to provide an estimate for the severity distribution of climate impacted hazards. In our approach we use heavy-tailed distributions to capture the severity of events. Our method allows local government decision makers to focus on extreme losses and the tail of the distribution. An illustration of the method is provided utilising an example that quantifies property losses from bushfires for a local area in northern Sydney. We further illustrate how key variables, such as discount rates, assumptions about climatic change and adaptation measures, will impact the estimates of losses. PMID- 29017095 TI - Persistence and reduction of Shiga toxin-producing Escherichia coli serotype O26:H11 in different types of raw fermented sausages. AB - Fermented sausages have been identified as source of several outbreaks of Shiga toxin-producing Escherichia coli (STEC). Illnesses linked to non-O157 STEC serotypes appear to be on the rise worldwide, and serogroup O26 is the second most reported in Europe after O157. However, data on the behavior of serogroup O26 in food are rare, so that the aim of this study was to investigate the survival of STEC O26:H11 in different types of fermented sausages ("Teewurst", fast-ripened and long-fermented salami). Challenge studies were performed with an inoculation cocktail which consisted of three STEC O26:H11 strains isolated from human, cattle and food sources. In the short-ripened spreadable sausage type "Teewurst" STEC counts decreased by only 0.5 log10 within 28days. In contrast, STEC reductions from 2.2 to 2.6 log10 units were observed in the different salami products, while the most pronounced decrease of 1.0 log10 unit within one day was detected in fast-ripened sausages with glucono delta-lactone (GdL). Moreover, numbers of the food-associated E. coli O26:H11 strain were significantly higher (p<0.001) than those of the human and cattle STEC O26:H11 strains in all types of fermented sausages. Approximately 60% of all STEC isolates from GdL salami shared the genotypic virulence profile of the food-associated E. coli O26:H11 strain. In summary, hurdles of acidification and drying during salami ripening resulted in reductions of STEC O26:H11 counts. However, our results also indicate that STEC O26:H11 can persist in the environment of "Teewurst" and might therefore pose a risk to public health. PMID- 29017096 TI - Enhancing miR-132 expression by aryl hydrocarbon receptor attenuates tumorigenesis associated with chronic colitis. AB - BACKGROUND: Chronic inflammation in ulcerative colitis (UC) patients is the major risk factor for colitis-associated colon cancer (CAC). Recent evidences have shown that microRNAs (miRNAs) are implicated in CAC pathogenesis. However, the interaction of miRNAs with the transcription factors that alleviate CAC has not been reported. METHODS: 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) or 3,3' diindolylmethane (DIM) were used to activate aryl hydrocarbon receptor (Ahr) in azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced CAC in mice. Real-time PCR was used to quantify the mRNAs of miRNA and coding genes while western blot and ELISA were used to quantify protein levels. Silencing miRNA was carried out by means of electroporation and locked nucleic acid (LNA)-miRNA. RESULTS: Inducing CAC in mice upregulated miR-132 expression in the colon, spleen and lymph nodes at all stages of disease development. Activation of Ahr by TCDD or DIM boosted miR-132 expression and alleviated CAC severity by suppression of macrophage infiltration and pro-inflammatory cytokines. Interestingly, TCDD, but not DIM, augmented a cholinergic anti-inflammation by inducing acetylcholinesterase (AChE)-targeting miR-132. This anti-inflammation was manifested by suppressed production of TNF-alpha, IL-1beta and IL-6. Silencing miR-132 in vivo in TCDD-treated mice abrogated the cholinergic anti-inflammation and exacerbated CAC. In addition, inhibition of miR-132 in vitro in CD4+ cells and macrophages mitigated the inhibitory effect of TCDD on AChE catalytic activity. CONCLUSION: Our findings identify miR-132 as a new molecule implicated in CAC pathogenesis, and reveal that miR-132 mediates the ameliorating effects of TCDD on CAC, suggesting miR-132 as a promising therapeutic candidate to control autoimmune inflammation and tumorigenesis in CAC patients. PMID- 29017097 TI - Graphene oxide assisted template-free synthesis of nanoscale splode-like NiCo2O4 hollow microsphere with superior lithium storage properties. AB - A facile template-free Ostwald ripening method is developed for the preparation of the reduced graphene oxide supported splode-like NiCo2O4 hollow microsphere (SNHM/rGO). The graphene oxide used in the reaction mixture is found to play a crucial role in the formation of the SNHM/rGO. It promotes the formation of the NiCo-glycerol microspheres suitable for the Ostwald ripening to form the reduced graphene oxide supported hollow NiCo-glycerol microspheres, which is important for the subsequent calcination to form the SNHM/rGO. The obtained SNHM/rGO shows a great promise as the anode for lithium-ion batteries and can deliver a stable reversible capacity of 1048.1 mA h g-1 at the current density of 100 mA g-1. The performance of the SNHM/rGO is much higher than that of most NiCo2O4-based materials reported previously, strongly suggesting that the SNHM/rGO could be used as the anode for practical applications. This is well supported by the higher performance of the LiCoO2//SNHM-rGO full cell. The excellent electrochemical performance can be attributed to the specific structure of the SNHM/rGO, which comprises the splode-like hollow NiCo2O4 microspheres with the reduced graphene oxide integrated. PMID- 29017098 TI - Self-assembled Ti3C2Tx/SCNT composite electrode with improved electrochemical performance for supercapacitor. AB - Two-dimensional titanium carbide has gained considerable attention in recent years as an electrode material for supercapacitors due to its high melting point, good electrical conductivity, hydrophilicity and large electrochemically active surfaces. However, the irreversible restacking during synthesis restricts its development and practical applications. Here, Ti3C2Tx/SCNT self-assembled composite electrodes were rationally designed and successfully synthesized by introducing single-walled carbon nanotubes (SCNTs) as interlayer spacers to decrease the restacking of the Ti3C2Tx sheets during the synthesis process. SCNTs can not only increase the specific surface area as well as the interlayer space of the Ti3C2Tx electrode, but also increase the accessible capability of electrolyte ions, and thus it improved the electrochemical performance of the electrode. The as-prepared Ti3C2Tx/SCNT self-assembled composite electrode achieved a high areal capacitance of 220mF/cm2 (314F/cm3) and a remarkable capacitance retention of 95% after 10,000cycles. PMID- 29017099 TI - Co-adsorption and sequential adsorption of the co-existence four heavy metal ions and three fluoroquinolones on the functionalized ferromagnetic 3D NiFe2O4 porous hollow microsphere. AB - Functionalized magnetic microsphere NiFe2O4 (MS-NiFe2O4) with a 3D hierarchical porous hollow structure was fabricated using urea as the modifier and soft templates by a simple one-pot solvothermal method. The constructed MS-NiFe2O4 shows excellent dual functions which can not only undergo simultaneous rapid removal of the co-existence metal ions (Cu2+, Cd2+, Cr3+ and Zn2+ ions), but also availably adsorb fluoroquinolone (FQs) (ciprofloxacin (CIP), enrofloxacin (ENR) and norfloxacin (NOR)), and is easily recycled using an external magnetic field. The removal efficiency of eight targets could all reach up to 80% within 60min at pH 5. The independent adsorption of single contaminants, the competitive adsorption of multiple heavy metal ions/organic contaminants, the simultaneous and sequential adsorption of the co-existence of inorganic and organic contaminants onto MS-NiFe2O4 were explored in detail. Competition adsorption occurred between the same type of contaminants. For different types of contaminants, four metal ions did not affect the adsorption of the other three FQs in the sequential and simultaneously adsorption system, and vice versa. The possible adsorption mechanism between targets and MS-NiFe2O4 was revealed. PMID- 29017100 TI - Enhanced formation of hydroxyapatites in gelatin/imogolite macroporous hydrogels. AB - HYPOTHESIS: Gelatin is widely investigated for the fabrication of synthetic scaffolds in bone tissue engineering. Practical limitations to its use are mainly due to the fast dissolution rate in physiological conditions and to the lack of pores with suitable dimensions for cell permeation. The aim of this work is to exploit imogolite clays as nucleation sites for the growth of calcium phosphates in gelatin-based hydrogels and to take advantage of a cryogenic treatment to obtain pores of ~100um. EXPERIMENTS: We evaluated the effect of imogolites and a biocompatible cross-linker on the gelatin network in terms of morphology, thermal and rheological behavior. The hydrogels were cryogenically-treated and characterized to investigate the modification of the polymer network, both at the micro- and nano-scale. The samples were mineralized to investigate the effect of imogolites on the formation of calcium phosphates. FINDINGS: The interaction between gelatin, imogolite and cross-linker leads to the modification of the hydrogel structure at the micro-scale, while minor effects are detected at the nano-scale. The cryogenic procedure is successful in generating pores with the desired size, while the presence of imogolites in the hydrogel promotes hydroxyapatites formation. These results demonstrate that imogolites can be effectively employed as functional fillers in polymer-based scaffolds. PMID- 29017101 TI - Facile synthesis of novel calcined magnetic orange peel composites for efficient removal of arsenite through simultaneous oxidation and adsorption. AB - Increasing exposure to arsenic (As) contaminated ground water has become a global health hazard to humanity. Suitable adsorbent for As removal from water, especially for As(III) than As(V), is an urgent but still a challenging task. In this study, waste orange peel (OP) was modified with magnetic nanoparticles followed by calcination as a novel adsorbent and investigated for instantaneous oxidation and adsorption of As(III) from aqueous solutions. The batch adsorption experimental results showed that calcined magnetic orange peel composites (CMOPC) exhibited superior As(III) adsorption capacity (10.3mg/g) as compared to similar cost effective adsorbents due to its high surface area, large pore size and greater numbers of active sites on its surface. The adsorption equilibrium data obeyed Langmuir model, and kinetic data was well described by the pseudo-second order model. The adsorption mechanisms for As(III) might be involved ligand exchange of the hydroxyl in CMOPC to form Fe-O-As(III), and partial As(III) oxidation to As(V) followed by instantaneous adsorption on surface of CMOPC. The developed adsorbent has also demonstrated good anti-interference ability to co existing ions, admirable regeneration ability and pronounced capacity in treating simulated real As(III) contaminated water. This study revealed that waste orange peel, after simple treatment could be used as a potential adsorbent for As(III) from aqueous solutions. PMID- 29017102 TI - Carnitine alkyl ester bromides as novel biosourced ionic liquids, cationic hydrotropes and surfactants. AB - HYPOTHESIS: In contrast to anionic and nonionic amphiphilic substances, bio-based cationic ones are very rare. Cationic amphiphiles are mostly based on quaternary ammonium, pyridinium or imidazolium groups that are either badly biodegradable or have toxic residues even after degradation. In the search for green alternatives to cationic hydrotropes and amphiphiles, natural l-carnitine could be a promising candidate for a cationic headgroup. EXPERIMENTS: By esterification of carnitine in one step and with low cost, cationic molecules with alkyl chain length of n=2 14 could be obtained. Their thermal properties, aggregation behaviour and cytotoxicity were determined. Hydrophobic compounds were solubilized in their aqueous solutions and the PIT-slope method was applied to determine a relative hydrophilicity. FINDINGS: It was found that some pure carnitine ester bromides were liquid at room temperature and thus can be classified as ionic liquids. They are highly water-soluble, and in aqueous solutions, they showed hydrotrope or surfactant behaviour depending on their alkyl chain length. Their high hydrotropic efficiency was demonstrated by solubilizing Disperse Red 13, while also biomolecules, like vanillin, could be dissolved in reasonable amounts. In all tests, they performed at least as good as the tested reference substances, while showing similar cytotoxicity towards human skin keratinocytes, thus demonstrating their potential as green functional amphiphilic molecules of positive charge. PMID- 29017103 TI - Assessing the efficiency of imidazolium-based ionic liquids on the phase behavior of a synthetic biomedical thermoresponsive polymer. AB - HYPOTHESIS: Temperature-responsive polymers (TRPs) with a phase transition temperature close to human physiological body temperature have attracted much attention in biomedical and pharmaceutical fields. Addition of small amount of cosolvent to TRPs is expected to influence the molecular interactions, thereby affecting the phase transition temperature of TRPs. Hence, it is possible to tune the phase behavior of TRPs and also drive transitions in TRPs by variation of chemical structure of cosolvent. EXPERIMENTS: To elucidate the conformational changes of the phase transition of TRP aqueous solution in ionic liquids (ILs), poly(N-vinylcaprolactam) (PVCL), a well known TRP was synthesized by solution polymerization. The lower critical solution temperature (LCST) behavior of polymer aqueous solution, with the addition of imidazolium-based ILs possessing same Cl- anion and a set of cations [Cnmim]+ such as 1-ethyl-3-methylimidazolium ([Emim]+), 1-butyl-3-methylimidazolium ([Bmim]+), 1-hexyl-3-methylimidazolium ([Hmim]+), 1-decyl-3-methylimidazolium ([Dmim]+), 1-allyl-3-methylimidazolium ([Amim]+) and 1-benzyl-3-methylimidazolium ([Bzmim]+), was monitored by using various sophisticated experimental techniques. FINDINGS: The modulations on the LCST of PVCL aqueous solutions follow the order of [Emim][Cl]<[Amim][Cl]<[Bmim][Cl]<[Hmim][Cl]<[Bzmim][Cl]<[Dmim][Cl]. This order shows that the LCST value increase with increasing the alkyl chain length of cation from [Emim]+ to [Dmim]+ of IL. To the best of our knowledge, this is the first report on comprehensive unequivocal evidence of the phase transition behavior of PVCL in presence of imidazolium-based ILs. PMID- 29017104 TI - Shift of monocyte subsets along their continuum predicts cardiovascular outcomes. AB - BACKGROUND AND AIMS: Distribution of monocyte subsets has been shown to predict cardiovascular outcomes. However, monocytes form a continuum and categorization into discrete subsets may be an oversimplification. We herein aimed at establishing whether distribution of monocytes based on CD14 and CD16 fluorescence intensity provides incremental and complementary information on cardiovascular outcomes beyond enumeration of traditional subsets. METHODS: A cohort of 227 patients at high cardiovascular risk was characterized at baseline and followed for a median of 4 years. We quantified monocytes subsets by flow cytometry based on CD14 and CD16 expression and evaluated the continuous distribution of CD14 and CD16 fluorescence within each subset. RESULTS: A consistent shift toward higher CD16 fluorescence intensity within each monocyte subset was observed in patients with type 2 diabetes, despite no change in their frequencies. Patients with coronary artery disease (CAD) at baseline showed a doubling of CD14++CD16+ intermediate monocytes and a shift of non-classical and classical monocytes towards intermediates ones. During follow-up, cardiovascular death or cardiovascular events occurred in 26 patients, who showed monocyte skewing similar to those of patients with baseline CAD. In fully adjusted Cox proportional hazard regression models, higher CD16 expression on classical monocytes, but not the level of intermediate monocytes or other subsets, independently predicted adverse cardiovascular outcomes. CONCLUSIONS: Shift of monocyte subsets along the CD14/CD16 continuum, more than their frequencies, predicted adverse cardiovascular outcomes. This finding illustrates how the concept of monocyte continuum can be used to model the cardiovascular risk. PMID- 29017105 TI - Transcranial color-coded duplex sonography for evaluation of midline-shift after chronic-subdural hematoma evacuation (TEMASE): A prospective study. AB - OBJECTIVE: The incidence of chronic Subdural hematoma (cSDH) is increasing and its rate of recurrence varies from 5 to 33%. A postoperative brain midline-shift (MLS) on computed tomography (CT) equal or larger than 5mm is a risk factor for recurrence. Transcranial color-coded duplex sonography (TCCDS) is a noninvasive bedside reproducible technique useful to detect MLS. The aim of our study was to compare in patients affected by cSDH, the values of MLS obtained pre- and post operatively by TCCDS and brain CT. PATIENTS AND METHODS: 32 patients affected by cSDH entered the study between July 2016 and January 2017. MLS values obtained by TCCDS and brain CT were compared using Bland-Altman plot and linear regression analysis. Using the same techniques we also explored if the agreement between the two imaging modes was comparable in pre- and post-operative data pairs. RESULTS: 64 data pairs of MLS values obtained by TCCDS and CT were analysed. Bland-Altman diagrams did not show any systematic bias of the data and linear regression indicated a significant correlation between the two measures both before and after hematoma evacuation. CONCLUSION: In patients affected by cSDH, MLS values obtained before and after surgery by TCCDS are comparable to those obtained by CT; TCCDS might be considered an alternative to CT scan in the management of patients after cSDH evacuation. We suggest that close clinical bedside examination and TCCDS might be appropriate for the post-operative management of cSDH, reserving CT scan only to patients with overt clinical deterioration and/or increasing MLS. PMID- 29017106 TI - Surgical outcomes after laminoplasty for cervical spondylotic myelopathy: A focus on the dynamic factors and signal intensity changes in the intramedullary spinal cord on MRI. AB - OBJECTIVE: We aimed to analyze the relationship between the dynamic factors and signal intensity changes in the intramedullary spinal cord on MRI, and surgical outcomes, following double-door laminoplasty for cervical spondylotic myelopathy (CSM). PATIENTS AND METHODS: This retrospective study included 100 consecutive patients who underwent double-door laminoplasty for CSM. The following factors were analyzed: JOA score recovery rate, age, duration from onset to surgery, intraoperative bleeding, signal intensity changes in the intramedullary spinal cord on MRI, pre and postoperative C2-7 lordotic angle (LA), changes in C2-7 LA, pre and postoperative C2-7 range of motion (ROM), and pre and postoperative segmental ROM. The Charlson Comorbidity Index (CCI) was also used for the assessment of complications. RESULTS: Age, CCI, preoperative segmental ROM, and pre and postoperative MRI grade significantly correlated with JOA score recovery rate (P<0.01), whereas number of expanded laminae, duration from onset to surgery, surgery time, intraoperative bleeding, preoperative and postoperative C2 7 LA, change in C2-7 LA, and preoperative C2-7 ROM did not. Multivariate analysis showed that the preoperative segmental ROM (OR=-0.988, P=0.017) and preoperative MRI grade (OR=-7.170, P=0.042) were significantly associated with JOA score recovery rate. CONCLUSION: Considering the dynamic factors, there was no correlation with C2-7 ROM and surgical outcome, but preoperative segmental ROM and a change in signal intensity of the intramedullary spinal cord on MRI were negatively correlated with surgical outcome. From these results, we suggest that preoperative segmental ROM is possibly associated with spinal cord damage due to repeated minor trauma and affects surgical outcome of laminoplasty. PMID- 29017107 TI - Vitamin D and parathyroid hormone are associated with gait instability and poor balance performance in mid-age to older aged women. AB - CONTEXT: Vitamin D status and parathyroid hormone (PTH) levels influence the risk of accidental falls in older people, but the mechanisms underlying this effect remain unclear. OBJECTIVE: Investigate the relationship between circulating PTH and 25 hydroxyvitamin D (25-OHD) levels and clinical tests of gait stability and balance as physical fall risk factors. We hypothesized that high levels of PTH and low 25-OHD levels would be significantly associated with gait stability and decreased balance performance. DESIGN: Observational cohort study. SETTING: Australian community. PARTICIPANTS: 119 healthy, ambulatory female twin adults aged 47-80 years residing in Victoria, Australia. OUTCOME MEASURES: Serum PTH and 25-OHD levels with clinical tests of gait stability [double support duration (DSD)] and dynamic balance (Step Test). Associations were investigated by regression analysis and by comparing groups divided by tertiles of PTH (<3.5, 3.5 4.9, >4.9pmol/L) and 25-OHD (<53, 53-75, >75 nmol/L) using analysis of variance. RESULTS: Serum PTH was associated positively with DSD, with an increase of 10.6 15.7% when the mid and highest PTH tertiles were compared to the lowest tertile (p <0.025) when 25-OHD was included in the regression analysis. 25-OHD was significantly associated with DSD (greater by 10.6-11.1% when lowest and mid tertiles compared with the highest 25-OHD tertile) (p <0.025) and dynamic balance (better performance by 12.6% in the highest compared with the lowest 25OHD tertile) (p <0.025). CONCLUSION: These findings reveal an important new relationship between parathyroid hormone and gait stability parameters and add to understanding of the role of 25-OHD in motor control of gait and dynamic balance in community-dwelling women across a wide age span. PMID- 29017108 TI - Sexual orientation disparities in prescription drug misuse among a nationally representative sample of adolescents: Prevalence and correlates. AB - OBJECTIVE: Sexual minority adolescents (SMA) may be at disproportionate risk for misusing prescription psychotropic medications compared to their heterosexual peers. However, generalizable studies specific to this age group are lacking. The current study aimed to describe the prevalence of sexual orientation disparities in prescription drug misuse among a nationally representative sample of adolescents as well as to examine key correlates of misuse. METHOD: Using data from the National Youth Risk Behavior Survey, we conducted stepwise multivariable weighted logistic regressions, sequentially controlling for demographics, experiences of victimization, mental health, and other illicit substance use. RESULTS: Adjusting for grade and race/ethnicity, female SMA and gay and unsure males had significantly elevated odds of ever misusing a prescription drug compared to heterosexual adolescents (ORs from 1.7-2.5). Most sexual orientation disparities among females remained significant with the addition of victimization and mental health covariates but attenuated completely after controlling for other illicit drug use. The effect for unsure males attenuated when victimization variables were included, but the effect for gay males remained significant through the final model. Controlling for other illicit drug use, mental health variables remained significant correlates for females whereas only forced sex was significant for males. CONCLUSION: These results suggest experiences of victimization and mental health partially account for the disparities in prescription drug misuse between SMA and heterosexual adolescents, and their effects may differ by sex. A combination of structural, individual coping, and universal drug prevention approaches should be used to make the largest impact on reducing these disparities. PMID- 29017109 TI - Development of a LC-MS/MS method to investigate the interference of pharmacokinetics of the main constituents in Saxifraga stolonifera: Involvement of drug metabolism enzymes. AB - A specific and sensitive LC-MS/MS method was established for the simultaneous determination of bergenin, protocatechuic acid and gallic acid, the main active constituents of Saxifraga stolonifera (L.) Meerb. herb, in rat plasma. After fully validated, the method was applied to the comparative pharmacokinetic studies of the three compounds orally administered alone and in combination in the S. stolonifera extract, respectively. The results showed that the pharmacokinetic parameters, including Cmax, Tmax, AUC, CLz/F, MRT0-infinity, were significantly different for both bergenin and protocatechuic acid in the extract as compared to the corresponding compounds administered alone. However, the pharmacokinetic behavior of gallic acid in the extract did not differ from that administered alone. Further studies found that quercetin, coexisting in the herb extract, significantly decreased the glucuronidation of bergenin through inhibiting the activities of UGT1A1 and UGT1A3, and reduced the metabolism of protocatechuic acid by inhibiting the activity of catechol-O-methyltransferase. Quercetin and other flavonoids occurring in the S. stolonifera extract might increase the absorption and improve the bioavailability of bergenin and protocatechuic acid by slowing down the liver metabolism. The findings provide a good guidance for the development and clinical application of S. stolonifera. PMID- 29017111 TI - Origin and spatial distribution of metals in moss samples in Albania: A hotspot of heavy metal contamination in Europe. AB - This study presents the spatial distribution of 37 elements in 48 moss samples collected over the whole territory of Albania and provides information on sources and factors controlling the concentrations of elements in the moss. High variations of trace metals indicate that the concentrations of elements are affected by different factors. Relations between the elements in moss, geochemical interpretation of the data, and secondary effects such as redox conditions generated from local soil and/or long distance atmospheric transport of the pollutants are discussed. Zr normalized data, and the ratios of different elements are calculated to assess the origin of elements present in the current moss samples with respect to different geogenic and anthropogenic inputs. Factor analysis (FA) is used to identify the most probable sources of the elements. Four dominant factors are identified, i.e. natural contamination; dust emission from local mining operations; atmospheric transport of contaminants from local and long distance sources; and contributions from air borne marine salts. Mineral particle dust from local emission sources is classified as the most important factor affecting the atmospheric deposition of elements accumulated in the current moss samples. The open slag dumps of mining operation in Albania is probably the main factor contributing to high contents of Cr, Ni, Fe, Ti and Al in the moss. Enrichment factors (EF) were calculated to clarify whether the elements in the present moss samples mainly originate from atmospheric deposition and/or local substrate materials. PMID- 29017110 TI - Structural characterization of dimethyldithiodenafil and dimethylthiocarbodenafil, analogs of sildenafil. AB - Two analogs of sildenafil (compounds 1 and 2) were detected in three powder products acquired from online drug markets during an LC-UV-MS analysis of psychotropic drugs. Their structures were established by high-resolution mass spectrometry and NMR spectroscopy. Compound 1 was identified as 5-(5-(3,5 dimethylpiperazine-1-carbonothioyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1H pyrazolo[4,3-d]pyrimidine-7(6H)-thione and named dimethyldithiodenafil. Compound 2 was identified as 5-(5-(3,5-dimethylpiperazine-1-carbonothioyl)-2-ethoxyphenyl) 1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one and named dimethylthiocarbodenafil. Compound 1 was subjected to the phosphodiesterase assay (IC50=0.20nM). The three powder products were found to contain 12-19mg of dimethyldithiodenafil and 1.4-3.9mg of dimethylthiocarbodenafil per tube. PMID- 29017112 TI - Bioaccumulation, distribution and elimination of lindane in Eisenia foetida: The aging effect. AB - Soil aging will influence the chemical speciation of pesticides, thus affecting the uptake route to be bioavailable to the organism. So far, studies on the possible effects of the uptake route on the distribution and elimination of pesticides in the organism that also considers effects of aging are limited. In our study, Eisenia fetida was exposed to 4.5 mg kg-1 lindane aging for 0, 30 and 180 d, and the accumulation, distribution and elimination of lindane in the earthworms were analyzed. The results showed that the 6 h Tenax-extracted fraction exhibited a good linear correlation with the lindane accumulated in the earthworms. With aging time increasing, the bioaccumulation of lindane decreased and the accumulative balance was more easily reached in the earthworms. Lindane distributions were found in the whole earthworm and the proportions of lindane content at sub-organism level and the mass distribution of each fraction were similar for 0 d and 180 d aged groups. The foregut accumulated the highest content of lindane (20%) relative to its low mass distribution proportion (10%). The elimination rate of lindane in the earthworms decreased with aging time extending. Our conclusion was that the 6 h Tenax extraction could be used to assess the bioavailability of aging lindane. Although soil aging decreased the bioavailability of lindane, the soil-bound lindane entered the earthworm through dietary route would take longer to depurate from the organisms than free lindane, which implied the potential ecological risk of bound pesticide residues. PMID- 29017113 TI - Fate of bisphenol A, perfluorooctanoic acid and perfluorooctanesulfonate in two different types of sewage treatment works in Hong Kong. AB - This study aimed at investigating the removal efficiencies of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and bisphenol A (BPA) of two major sewage treatment works in Hong Kong: Stonecutters Island STW (SCISTW) which adopts chemically enhanced primary treatment (CEPT) process and Sha Tin STW (STSTW) which employs biological treatment. Liquid portion (LP) and particulate matter (PM) of liquid sewage samples and sludge samples were collected and followed by liquid chromatograph system. It was found that BPA (44.6 +/- 35.1%) generally achieved higher TRE than the two other chemicals (PFOS (-18.8 +/- 34.8%) and PFOA (-104 +/- 86.8%)) in STSTW (p < 0.05). Most of the PFOA, PFOS and BPA was discharged through final effluent (PFOA: 95.6 +/- 1.00% and 94.5 +/- 3.13%; PFOS: 77.7 +/- 1.48% and 72.6 +/- 6.07%; BPA: 99.2 +/- 0.950% and 92.8 +/- 7.25%, respectively) rather than stored in the sludge/cake (PFOA: 4.45 +/- 1.00% and 5.47 +/- 3.13%, PFOS: 22.3 +/- 1.48% and 27.4 +/- 6.07%, BPA: 0.844 +/- 0.950% and 7.20 +/- 7.25%, respectively). After the sewage purification process, the two STW released considerable amounts of PFOA, PFOS and BPA in the final effluent (PFOA: 0.638 +/- 0.227 kg/year; PFOS: 0.409 +/- 0.126 kg/year; BPA: 10.4 +/- 3.83 kg/year in STSTW; PFOA: 3.08 +/- 1.415 kg/year; PFOS: 2.13 +/- 0.452 kg/year; BPA: 714 +/- 768 kg/year in SCISTW) and in the sludge (PFOA: 0.0360 +/- 0.0250 kg/year; PFOS: 0.149 +/- 0.00100 kg/year; BPA: 1.09 +/- 1.47 kg/year in STSTW; PFOA: 0.139 +/- 0.0670 kg/year; PFOS: 0.606 +/- 0.0780 kg/year; BPA: 3.05 +/- 3.95 kg/year in SCISTW). This study may help to provide crucial information for further development of municipal sewage system in treating synthetic emerging chemicals. PMID- 29017114 TI - Association between the IRF6 rs2235371 polymorphism and the risk of nonsyndromic cleft lip with or without cleft palate in Chinese Han populations: A meta analysis. AB - OBJECTIVE: To investigate the association between the risk of nonsyndromic cleft lip with or without cleft palate (NSCL/P) and the IRF6 rs2235371 (C>T) polymorphism in Chinese Han populations. DESIGN: PubMed, Web of Science and EMBASE were searched through May 31, 2016, to select eligible studies. Pooled odds ratios (ORs) with 95% confidence intervals (95% CIs) were applied to estimate the risk of NSCL/P associated with the IRF6 rs2235371 polymorphism. Subgroup analyses were conducted according to NSCL/P types (CLO, CPO and CLP) and the geographical location (Northern China and Southern China). Publication bias and sensitivity analyses were performed to assess the reliability of the results. RESULTS: A total of 1275 NSCL/P cases and 1294 controls from seven eligible case control studies were included. In the overall analysis, a significant association between the IRF6 rs2235371 polymorphism and the risk of NSCL/P was identified under all genetic models, with the exception of the recessive model (T vs. C: OR=0.68, 95%CI=0.60-0.76, P<0.00001). A subgroup analysis by NSCL/P types indicated that the variant T allele significantly decreased the risk of CLO and CLP but not CPO. A subgroup analysis of the geographical location further showed significantly decreased susceptibility in Northern China under all genetic models, but in Southern China, only the heterozygote and dominant models showed a significantly decreased risk of NSCL/P. Funnel plot analysis and the Egger linear regression method detected no publication bias. CONCLUSIONS: The IRF6 rs2235371 T allele decreased the risk of NSCL/P in Chinese Han populations. However, further studies with large sample sizes should be conducted to confirm this association. PMID- 29017116 TI - Improved proteolytic stability and potent activity against Leishmania infantum trypanothione reductase of alpha/beta-peptide foldamers conjugated to cell penetrating peptides. AB - The objective of the current study was to enhance the proteolytic stability of peptide-based inhibitors that target critical protein-protein interactions at the dimerization interface of Leishmania infantum trypanothione reductase (Li-TryR) using a backbone modification strategy. To achieve this goal we carried out the synthesis, proteolytic stability studies and biological evaluation of a small library of alpha/beta3-peptide foldamers of different length (from 9-mers to 13 mers) and different alpha->beta substitution patterns related to prototype linear alpha-peptides. We show that several 13-residue alpha/beta3-peptide foldamers retain inhibitory potency against the enzyme (in both activity and dimerization assays) while they are far less susceptible to proteolytic degradation than an analogous alpha-peptide. The strong dependence of the binding affinities for Li TryR on the length of the alpha,beta-peptides is supported by theoretical calculations on conformational ensembles of the resulting complexes. The conjugation of the most proteolytically stable alpha/beta-peptide with oligoarginines results in a molecule with potent activity against L. infantum promastigotes and amastigotes. PMID- 29017117 TI - Characterisation of hyaluronic acid methylcellulose hydrogels for 3D bioprinting. AB - Hydrogels containing hyaluronic acid (HA) and methylcellulose (MC) have shown promising results for three dimensional (3D) bioprinting applications. However, several parameters influence the applicability bioprinting and there is scarce data in the literature characterising HAMC. We assessed eight concentrations of HAMC for printability, swelling and stability over time, rheological and structural behaviour, and viability of mesenchymal stem cells. We show that HAMC blends behave as viscous solutions at 4 degrees C and have faster gelation times at higher temperatures, typically gelling upon reaching 37 degrees C. We found the storage, loss and compressive moduli to be dependent on HAMC concentration and incubation time at 37 degrees C, and show the compressive modulus to be strain-rate dependent. Swelling and stability was influenced by time, more so than pH environment. We demonstrated that mesenchymal stem cell viability was above 75% in bioprinted structures and cells remain viable for at least one week after 3D bioprinting. The mechanical properties of HAMC are highly tuneable and we show that higher concentrations of HAMC are particularly suited to cell encapsulated 3D bioprinting applications that require scaffold structure and delivery of cells. PMID- 29017118 TI - Effects of sludge thermal-alkaline pretreatment on cationic red X-GRL adsorption onto pyrolysis biochar of sewage sludge. AB - Thermal-alkaline pretreatment has traditionally been used to enhance anaerobic sludge digestion. In this study, after removing the supernatant, which could be used in anaerobic digestion, the Residual Solids of Thermal-Alkaline pretreated sewage Sludge (RSTAS) were used to prepare biochar via pyrolysis, which could then adsorb Cationic Red X-GRL(X-GRL). The experimental results showed that the RSTAS-biochar had a higher BET surface area and total pore volume than the biochar prepared from raw sludge (RS) (43.5% and 33.3%, respectively). The pretreatment enhanced the X-GRL adsorption capacity of the biochar by 1.5-49.2% at dosages between 12.5-100.0g/g, and the highest adsorption capacity increased from 39.1mg/g to 47.6mg/g. The biochar from RSTAS had a wider application pH range for X-GRL adsorption. The kinetics and isotherms for X-GRL adsorption onto the two biochars were well fitted to the pseudo-second-order and Langmuir isotherm models, respectively, which suggested that thermal-alkaline pretreatment had little effect on the adsorption mechanisms of X-GRL onto biochar. PMID- 29017119 TI - Mn2+ promoted Cr(VI) reduction with oxalic acid: The indispensable role of In situ generated Mn3. AB - In this study, we demonstrate that Mn2+ can greatly promote the Cr(VI) reduction by oxalic acid at pH<5 via an induction period and a subsequent auto-acceleration process. The Cr(VI) reduction rate constant during the late auto-acceleration process was about 10 times that of the initial induction period. Characterization results revealed that this interesting two-step Cr(VI) reduction phenomenon was attributed to the in-situ generated Mn3+ by the oxidation of Mn2+ with Cr(VI) in the presence of oxalic acid during the induction period. The in-situ generated Mn3+ might complex with oxalate and Cr(VI) to produce a ternary complex, thus facilitating the electron transfer from oxalate to Cr(VI) to automatically accelerate the Cr(VI) reduction process. These findings shed insight into the possible roles of widely existed Mn ions (Mn2+ and Mn3+) and oxalic acid in the transformation of Cr(VI) in natural aquatic environment, and also provided an efficient way to remediate Cr(VI)-containing acid wastewater. PMID- 29017115 TI - A review of the basics of mitochondrial bioenergetics, metabolism, and related signaling pathways in cancer cells: Therapeutic targeting of tumor mitochondria with lipophilic cationic compounds. AB - The present review is a sequel to the previous review on cancer metabolism published in this journal. This review focuses on the selective antiproliferative and cytotoxic effects of mitochondria-targeted therapeutics (MTTs) in cancer cells. Emerging research reveals a key role of mitochondrial respiration on tumor proliferation. Previously, a mitochondria-targeted nitroxide was shown to selectively inhibit colon cancer cell proliferation at submicromolar levels. This review is centered on the therapeutic use of MTTs and their bioenergetic profiling in cancer cells. Triphenylphosphonium cation conjugated to a parent molecule (e.g., vitamin-E or chromanol, ubiquinone, and metformin) via a linker alkyl chain is considered an MTT. MTTs selectively and potently inhibit proliferation of cancer cells and, in some cases, induce cytotoxicity. MTTs inhibit mitochondrial complex I activity and induce mitochondrial stress in cancer cells through generation of reactive oxygen species. MTTs in combination with glycolytic inhibitors synergistically inhibit tumor cell proliferation. This review discusses how signaling molecules traditionally linked to tumor cell proliferation affect tumor metabolism and bioenergetics (glycolysis, TCA cycle, and glutaminolysis). PMID- 29017120 TI - The flame retardancy and smoke suppression effect of a hybrid containing CuMoO4 modified reduced graphene oxide/layered double hydroxide on epoxy resin. AB - The co-precipitation method was used to synthesize a hybrid with MgAl-layered double hydroxide loaded graphene (RGO-LDH). CuMoO4 was then introduced onto the surface of RGO-LDH to prepare a hybrid with CuMoO4 modified RGO-LDH (RGO LDH/CuMoO4). The composition, structure and morphology of RGO-LDH/CuMoO4 were characterized by X-ray diffraction, Laser raman spectroscopy and Transmission electron microscope-energy-dispersive X-ray spectroscopy. It was found that the hybrid of RGO-LDH/CuMoO4 had been successfully prepared. The effects of flame retardancy and smoke suppression of epoxy resin were studied with added RGO LDH/CuMoO4. Results showed that the PHRR and THR of the EP composite with RGO LDH/CuMoO4 added were decreased dramatically. The char yield, LOI and UL-94 vertical burning rating of the EP composite were increased, with improved flame ratardancy. In addition, the SPR, TSP, and Ds,max of the EP composite were decreased drastically with added RGO-LDH/CuMoO4. Its improved flame retardancy and smoke suppression performance were due mainly to the physical barrier of graphene and LDH, and the catalytic carbonization function of LDH. Meanwhile, Cu2O and MoO3 generated from RGO-LDH/CuMoO4 in the combustion process helped enhance the production of char residue and raised the compactness of the char layer. PMID- 29017121 TI - Efficient degradation of tetrabromobisphenol A via electrochemical sequential reduction-oxidation: Degradation efficiency, intermediates, and pathway. AB - Tetrabromobisphenol A (TBBPA), a toxic persistent pollutant, should be effectively removed from the environment. In this study, an electrochemical sequential reduction-oxidation system was proposed by controlling reaction atmosphere with Pd-Fe nanoparticles modified Ni foam (Pd-Fe/Ni) electrode as cathode for TBBPA degradation. To obtain an efficient Pd-Fe/Ni electrode for TBBPA degradation, various factors, like Pd loading, Fe2+ adding amounts, were examined. The Pd-Fe/Ni electrode exhibited higher TBBPA conversion and debromination than the counterparts, due to the synergism of Fe0 and electrochemical reduction. Similar TBBPA conversions and debromination ratios were observed for the cases of sparging N2 only and sparging N2 followed by air, which were higher than those of aeration. Reductive debromination occurred while first bubbling N2, forming tri-BBPA, di-BBPA, mono-BBPA and BPA; and these intermediates were likely to be further oxidized by OH generated from H2O2 together with Pd-Fe/Ni electrode under aeration. Reductive and oxidative intermediates (including aromatic ring-opened product) were identified by HPLC and UPLC-QTOF-MS. Based on the intermediates, the possible TBBPA degradation mechanism and pathway were proposed. This study demonstrates that sequential reduction-oxidation process tuned by N2 and air bubbling was favored for TBBPA degradation, thus, it should be a promising process for HOCs degradation. PMID- 29017122 TI - Biochemical responses of Solea senegalensis after continuous flow exposure to urban effluents. AB - Urban effluent potential toxicity was assessed by a battery of biomarkers aimed at determining sub-lethal effects after continuous exposure on the marine organism Solea senegalensis. Specimens were exposed to five effluent concentrations (1/2, 1/4, 1/8, 1/16, 1/32) during 7-days, simulating the dispersion plume at the discharge point. Three different groups of biomarkers were selected in the present study: biomarkers of exposure (Phase I: EROD and DBF; Phase II: GST), biomarkers with antioxidant responses (GR and GPX) and biomarkers of effects (DNA damage and LPO). Additionally, a biological depuration treatment (photobiotreatment (PhtBio)) was tested in order to reduce the adverse effects on aquatic organisms. Effluent exposure caused sub-lethal responses in juvenile fish suggesting oxidative stress. After PhtBio application, concentrations of the major part of measured contaminants were reduced, as well as their bioavailability and adverse effects. PMID- 29017123 TI - Organic contamination and remediation in the agricultural soils of China: A critical review. AB - Soil pollution is a global problem in both developed and developing countries. Countries with rapidly developing economies such as China are faced with significant soil pollution problems due to accelerated industrialization and urbanization over the last decades. This paper provides an overview of published scientific data on soil pollution across China with particular focus on organic contamination in agricultural soils. Based on the related peer-reviewed papers published since 2000 (n=203), we evaluated the priority organic contaminants across China, revealed their spatial and temporal distributions at the national scale, identified their possible sources and fates in soil, assessed their potential environmental risks, and presented the challenges in current remediation technologies regarding the combined organic pollution of agricultural soils. The primary pollutants in Northeast China were polycyclic aromatic hydrocarbons (PAHs) due to intensive fossil fuel combustion. The concentrations of organochlorine pesticides (OCPs) and phthalic acid esters (PAEs) were higher in North and Central China owing to concentrated agricultural activities. The levels of polychlorinated biphenyls (PCBs) were higher in East and South China primarily because of past industrial operations and improper electronic waste processing. The co-existence of organic contaminants was severe in the Yangtze River Delta, Pearl River Delta, and Beijing-Tianjin-Hebei Region, which are the most populated and industrialized regions in China. Integrated biological chemical remediation technologies, such as surfactant-enhanced bioremediation, have potential uses in the remediation of soil contaminated by multiple contaminants. This critical review highlighted several future research directions including combined pollution, interfacial interactions, food safety, bioavailability, ecological effects, and integrated remediation methods for combined organic pollution in soil. PMID- 29017124 TI - Shifts of radiocesium vertical profiles in sediments and their modelling in Japanese lakes. AB - Vertical profiles of radiocesium concentrations were measured in sediment cores collected at various times after the 2011 Fukushima nuclear accident in five Japanese lakes (Hinuma, Kasumigaura, Kitaura, Onogawa and Sohara) with different morphological and trophic characteristics in order to investigate the sedimentation-diffusion processes. In lakes where sediments had high porosities and experienced considerable wave action due to shallowness, we observed rapid penetration of radiocesium to a certain depth just after the accident, followed by downward movement of the peak depths. In contrast, gradual downward transfers of distinct peaks were found in other types of lakes. A one-dimensional differential sediment model with water-sediments interaction processes was constructed to describe the vertical shift of radiocesium profiles. Our proposed submodels relating to the length scales of the mixing using wind-induced stress and porosity of sediments were constructed based on one measurement of the vertical distribution of radiocesium in three lakes (Hinuma, Kasumigaura and Sohara). This model was then validated using samples from those lakes in different years, as well as from two other lakes. Good agreement was obtained. We discuss our findings, the limits of model application, and future research targets. PMID- 29017125 TI - Thaw depth spatial and temporal variability at the Limnopolar Lake CALM-S site, Byers Peninsula, Livingston Island, Antarctica. AB - A new Circumpolar Active Layer Monitoring (CALM) site was established in 2009 at the Limnopolar Lake watershed in Byers Peninsula, Livingston Island, Antarctica, to provide a node in the western Antarctic Peninsula, one of the regions that recorded the highest air temperature increase in the planet during the last decades. The first detailed analysis of the temporal and spatial evolution of the thaw depth at the Limnopolar Lake CALM-S site is presented here, after eight years of monitoring. The average values range between 48 and 29cm, decreasing at a ratio of 16cm/decade. The annual thaw depth observations in the 100*100 m CALM grid are variable (Variability Index of 34 to 51%), although both the Variance Coefficient and the Climate Matrix Analysis Residual point to the internal consistency of the data. Those differences could be explained then by the terrain complexity and node-specific variability due to the ground properties. The interannual variability was about 60% during 2009-2012, increasing to 124% due to the presence of snow in 2013, 2015 and 2016. The snow has been proposed here as one of the most important factors controlling the spatial variability of ground thaw depth, since its values correlate with the snow thickness but also with the ground surface temperature and unconfined compression resistance, as measured in 2010. The topography explains the thaw depth spatial distribution pattern, being related to snowmelt water and its accumulation in low-elevation areas (downslope flow). Patterned grounds and other surface features correlate well with high thaw depth patterns as well. The edaphic factor (E=0.05842m2/ degrees C.day; R2=0.63) is in agreement with other permafrost environments, since frozen index (F>0.67) and MAAT (<-2 degrees C) denote a continuous permafrost existence in the area. All these characteristics provided the basis for further comparative analyses between others nearby CALM sites. PMID- 29017126 TI - Short-term facilitation of microbial litter decomposition by ultraviolet radiation. AB - Solar radiation plays an important role in carbon cycling by increasing the decomposition rates of plant litter and soil organic matter (i.e. photodegradation). Previous work suggests that exposure to radiation can facilitate microbial decomposition of litter by altering litter chemistry and consequently litter degradability (i.e. photopriming). However, it remains unclear to what extent photopriming contributes to litter decomposition processes and on what timescale photopriming operates. We conducted laboratory experiments to compare the effects of UV photopriming at two temporal scales (months versus days). In one experiment, we found that four months of UV exposure induced a significant but small (3-4%) mass loss in two of three litter species commonly found in California oak savanna; however, UV exposure did not alter litter degradability as measured by microbial respiration in an incubation experiment. We also found that UV exposure had limited effects on lignin and other cell wall structures, but one month of microbial decomposition (in absence of UV exposure) significantly reduced lignin beta-aryl ether inter-unit linkages and acetylated xylans. These results indicate that abiotic photodegradation alone was ineffective at breaking down lignin. In another experiment, litter of a common grass was exposed to either alternating UV radiation and dark conditions or constant darkness for 128days. We found that the alternating UV exposure increased litter CO2 production in both dark and UV phases over that observed in constant darkness. This led to a 35% greater release of CO2 from the alternating UV exposure treatment between days 65 and 128 of the experiment. These results demonstrate that alternating UV exposure with dark conditions is key to enabling photopriming on a timescale of days. Overall, we identify short-term photopriming as a novel mechanism behind photodegradation. Our results also challenge the conventional hypothesis that abiotic processes are primarily responsible for degrading lignin during photodegradation. PMID- 29017128 TI - Potential for using remote sensing to estimate carbon fluxes across northern peatlands - A review. AB - Peatlands store large amounts of terrestrial carbon and any changes to their carbon balance could cause large changes in the greenhouse gas (GHG) balance of the Earth's atmosphere. There is still much uncertainty about how the GHG dynamics of peatlands are affected by climate and land use change. Current field based methods of estimating annual carbon exchange between peatlands and the atmosphere include flux chambers and eddy covariance towers. However, remote sensing has several advantages over these traditional approaches in terms of cost, spatial coverage and accessibility to remote locations. In this paper, we outline the basic principles of using remote sensing to estimate ecosystem carbon fluxes and explain the range of satellite data available for such estimations, considering the indices and models developed to make use of the data. Past studies, which have used remote sensing data in comparison with ground-based calculations of carbon fluxes over Northern peatland landscapes, are discussed, as well as the challenges of working with remote sensing on peatlands. Finally, we suggest areas in need of future work on this topic. We conclude that the application of remote sensing to models of carbon fluxes is a viable research method over Northern peatlands but further work is needed to develop more comprehensive carbon cycle models and to improve the long-term reliability of models, particularly on peatland sites undergoing restoration. PMID- 29017127 TI - Identification of platinum nanoparticles in road dust leachate by single particle inductively coupled plasma-mass spectrometry. AB - Elevated platinum (Pt) concentrations are found in road dust as a result of emissions from catalytic converters in vehicles. This study investigates the occurrence of Pt in road dust collected in Ghent (Belgium) and Gothenburg (Sweden). Total Pt contents, determined by tandem ICP-mass spectrometry (ICP MS/MS), were in the range of 5 to 79ngg-1, comparable to the Pt content in road dust of other medium-sized cities. Further sample characterization was performed by single particle (sp) ICP-MS following an ultrasonic extraction procedure using stormwater runoff for leaching. The method was found to be suitable for the characterization of Pt nanoparticles in road dust leachates. The extraction was optimized using road dust reference material BCR-723, for which an extraction efficiency of 2.7% was obtained by applying 144kJ of ultrasonic energy. Using this method, between 0.2% and 18% of the Pt present was extracted from road dust samples. spICP-MS analysis revealed that Pt in the leachate is entirely present as nanoparticles of sizes between 9 and 21nm. Although representing only a minor fraction of the total content in road dust, the nanoparticulate Pt leachate is most susceptible to biological uptake and hence most relevant in terms of bioavailability. PMID- 29017129 TI - Mapping relative humidity, average and extreme temperature in hot summer over China. AB - Air temperature and relative humidity are the key variables in environmental health research. Both of them are difficult to map especially at national scale because of spatial heterogeneity. This paper presents a methodology for mapping relative humidity, average and extreme temperature in hot summer (June to August) over China. Several data as explanatory variables were applied to random forest regression models to predict relative humidity and temperatures, including surface reflectance, land cover, digital elevation model (DEM), enhanced vegetation index (EVI), latitude, nighttime lights (NLs), as well as buffer zones of road, railroad, river system and administration center. Results based on cross validation reflect acceptable prediction errors in estimating relative humidity (RMSE=7.4%), average temperature (RMSE=2.4 degrees C), average maximum temperature (RMSE=2.5 degrees C), and extreme maximum temperature (RMSE=2.6 degrees C). Despite the strong correlation between average and extreme temperatures, significant differences exist in their spatial distribution along the latitude direction, especially in the areas such as Hebei, Szechwan, Hubei, Henan, Shandong, and Inner Mongolia. Specifically, social economic activity, relative humidity and vegetation tend to affect extreme heat events, and both latitude and DEM (i.e., geographical position) determine the average level of temperature. Compared with interpolation technology and statistical methods, the proposed methodology demonstrates the ability to generate relative humidity and temperature maps with finer gradients in hot summer over China. PMID- 29017130 TI - The biochemical response of willow plants (Salix viminalis L.) to the use of sewage sludge from various sizes of wastewater treatment plant. AB - Sewage sludge production is increasing, as is the importance of its safe and sustainable disposal. The study examine the impact of fertilizing poor quality soil with sewage sludge from three sizes of wastewater treatment plants (WTP) (small, medium and large) located in Central Poland, applied in two doses (3 and 9tons per hectare), on biomass yield and selected biochemical parameters in willow plants. The WTPs were selected based on the size criterion given in Polish regulations. Three variables were analyzed in the leaves and roots of willow cuttings after twenty weeks of cultivation: the degree of oxidative reaction, assessed as thiobarbituric-acid-reactive substances (TBARS) content; catalase activity (CAT, EC 1.11.1.6), reflecting the efficiency of the antioxidative response; and changes in the concentration of proline, one of the major cellular osmoprotectants. For plants growing in poor-quality soil, sewage sludge administration results in a large increase of willow biomass by creating good conditions for plant growth associated with protection against oxidative damage, efficient functioning of the antioxidant system and maintenance of the osmotic balance between the soil environment and plant roots. The greatest increase was 204% of control in the case of 9tha-1 sludge from the medium WTP. Biomass production correlated with the applied sludge dose. After sewage sludge application lipid peroxides were reduced in leaves (81%) and roots (69%), CAT activity was enhanced (to 855% in leaves) and proline level was increased in root tissues. The application of sewage sludge originating from small WTPs offers the best conditions than larger WTPs: sludge from large WTPs may cause oxidative damage and exceed the possibilities of plants to counteract stress factors, especially when used in high doses. PMID- 29017131 TI - Abiotic and biotic drivers of aboveground biomass in semi-steppe rangelands. AB - Rangelands play an important role in the biodiversity conservation and ecosystem functions. Yet, few studies have assessed the effects of biotic and abiotic factors on aboveground biomass across plant growth forms and at whole-community level in rangelands. Here, we hypothesized that aboveground biomass is driven by both biotic (plant coverage, species richness and evenness) and abiotic factors (soil textural properties and topographic factors) but biotic factors may best predict aboveground biomass, probably due to small spatial scale. To test this hypothesis, we performed multiple linear mixed model by including abiotic and biotic factors as fixed effects while sites aspects and plant community types across sites, and disturbance intensities as random effects, using data from 735 quadrats across 35 sites in semi-steppe rangelands in Iran. The optimal model for shrubs showed that aboveground biomass was positively related to plant coverage, species richness, elevation, sand, silt and clay. Aboveground biomass of forbs and grasses was positively related to plant coverage, species richness, elevation and slope. Whole-community aboveground biomass was positively related to plant coverage, species richness and elevation, but negatively to species evenness and slope. We conclude that higher aboveground biomass is related to high species richness and plant coverage, and located on high elevation and/or slope across plant growth forms while having medium-coarse-textured to fine-textured soils for adaptation of shrubs only. Few dominant species or niche overlap in whole community may also drive high aboveground biomass, and located on high elevation with gentle slope. Therefore, we found support for both the niche complementarity and selection effects across plant growth forms and at whole-community. In addition, this study shows that plant coverage is the best proxy for aboveground biomass in the studied rangelands. PMID- 29017133 TI - Estimation of soil salt content (SSC) in the Ebinur Lake Wetland National Nature Reserve (ELWNNR), Northwest China, based on a Bootstrap-BP neural network model and optimal spectral indices. AB - Soil salinity is recognized worldwide as a major threat to agriculture, particularly in arid regions. Producers and decision-makers thus require updated and accurate maps of salinity in agronomical and environmentally relevant regions. The goals of this study were to test various regression models for estimating soil salt content based on hyperspectral data, HJ-CCD images, and Landsat OLI data using; develop optimal band Difference Index (DI), Ratio Index (RI), and Normalization Index (NDI) algorithms for monitoring soil salt content using image and spectral data; and to compare the performances of the proposed models using a Bootstrap-BP neural network model (Bootstrap-BPNN) from different data sources. The results showed that previously published optimal remote sensing parameters can be applied to estimate the soil salt content in the Ebinur Lake Wetland National Nature Reserve (ELWNNR). Optimal band combination indices based on DI, RI, and NDI were developed for different data sources. Then, the Bootstrap BP neural network model was built using 1000 groups of Bootstrap samples of remote sensing indices (DI, RI and NDI) and soil salt content. When verifying the accuracy of hyperspectral data, the model yields an R2 value of 0.95, a root mean square error (RMSE) of 4.38g/kg, and a residual predictive deviation (RPD) of 3.36. The optimal model for remote sensing images was the first derivative model of Landsat OLI, which yielded R2 value of 0.91, RMSE of 4.82g/kg, and RPD of 3.32; these data indicated that this model has a high predictive ability. When comparing the salinization monitoring accuracy of satellite images to that of ground hyperspectral data, the accuracy of the first derivative of the Landsat OLI model was close to that of the hyperspectral parameter model. Soil salt content was inverted using the first derivative of the Landsat OLI model in the study area. PMID- 29017132 TI - A duodecennial national synthesis of antibiotics in China's major rivers and seas (2005-2016). AB - The occurrence of 94 antibiotics in water and sediments from seven major rivers and four seas in China during 2005-2016 was reviewed. Twelve antibiotics were most frequently detected in both water and sediment samples, including 3 sulfonamides (SAs), 2 tetracyclines (TCs), 4 fluoroquinolones (FQs), and 3 macrolides (MLs). Their median concentrations were below 100ng/L and 100ng/g in river water and sediments, respectively. The highest median concentrations were found in water (1.30-176ng/L) and sediments (0.15-110ng/g) in the Hai River, due to its larger population density, higher consumption of antibiotics, and lower water flow. The concentrations of TCs and FQs were higher in the Pearl River sediments, due to their extensive use in aquaculture. The Yangtze River showed lower median concentrations of antibiotics in both water (1.33-17.3ng/L) and sediments (0.31-14.8ng/g), resulting from its larger catchment size, and higher precipitation and water flow. The Yellow River exhibited lower median concentrations of antibiotics in sediments (0.04-9.04ng/g), probably due to low organic matter content in sediments and high suspended particle content in water. Organic carbon normalized distribution coefficients (Koc) of antibiotics were positively correlated with the octanol/water partition coefficients (Kow) of antibiotics, and the correlation for MLs with a macrocyclic lactone ring was different from that of SAs, FQs, and TCs, likely due to their much larger molecular size. Among China's major rivers, the Hai River had the highest ecotoxicological risk from antibiotics to algae, invertebrate, fish, and plant. PMID- 29017134 TI - Variations in size and composition of colloidal organic matter in a negative freshwater estuary. AB - Dynamic variations in chemical composition and size distribution of dissolved organic matter (DOM) along the river-lake interface in the Fox River plume were investigated using ultrafiltration, flow field-flow fractionation, UV-Vis and fluorescence spectroscopy and parallel factor analysis. On average, ~67% of bulk dissolved organic carbon (DOC) were partitioned in the <1kDa (actual cutoff 2.5kDa) low molecular weight fraction, and the other 33% were in the 1kDa-0.7MUm colloidal phase. Concentrations of DOC and chromophoric DOM in the bulk and size fractionated samples decreased monotonously with decreasing conductivity from river to bay waters, demonstrating a dominant terrestrial source and quasi conservative mixing behavior. However, the percentages of colloidal fluorescent DOM increased while those of carbohydrates decreased from river to bay waters, showing different mixing behavior in the river plume. Colloidal chromophores and humic-like fluorophores were mainly partitioned in the size range of 1-6nm, but a bimodal distribution (with peaks at 1-6 and 35-45nm) was observed for colloidal protein-like DOM. Along the river-lake transect, the peak locations of chromophores, humic-like and small-sized protein-like colloids remained almost constant, while the larger-sized protein-like colloids exhibited a slight peak shift from 38.3 to 40.4nm, showing a molecular size enhancement from high to low conductivity waters, with physical mixing, photochemical/microbial degradation, and disaggregation/repartitioning being the important processes affecting the variations of DOM size and composition. New results herein should enhance our understanding of the heterogeneity of DOM in size and composition and its fate, transport and transformation at the river-lake interface and along the aquatic continuum as a whole. PMID- 29017135 TI - Evaluation of the aqueous phototransformation routes of phenyl ethyl azolic fungicides by liquid chromatography accurate mass spectrometry. AB - Similarities and differences among the phototransformation routes of four azolic fungicides (diniconazole, DIN, imazalil, IMA; penconazole, PEN; and propiconazole, PRO) in surface water aliquots are investigated. Selected compounds share a common chemical structure consisting on dichlorophenyl and azolic rings connected through an ethylene bridge, which is substituted with different functionalities. Liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) was employed as analytical technique to follow the time course of precursor fungicides and to detect and to identify their photo transformation products (TPs). Under solar light, the substituents linked to the ethylene chain controlled the stability of the fungicides. Whilst PEN and PRO remained stable, DIN and IMA showed moderate reactivities, with half-lives (t1/2) of 5.1 and 33.5h, respectively. When exposed to UV (254nm) radiation, all compounds were effectively degraded with t1/2 in the range from seconds to a few minutes. Dechlorination followed by intramolecular cyclization, between phenyl and azolic rings, was identified as a common phototransformation route under UV irradiation. Depending on the length and the kind of the functionalities attached to the ethylene bridge, additional cyclization reactions are also possible. In silico toxicity predictions pointed out to dechlorinated tricyclic TPs as the most concerning ones, with predicted lethal concentrations (LC50) in the same range as the precursor fungicides. PMID- 29017136 TI - Combined spinal epidural in a parturient with tinea versicolor. PMID- 29017137 TI - Ovarian vein thrombosis after total laparoscopic hysterectomy with unilateral adnexectomy: A case report. AB - INTRODUCTION: Ovarian vein thrombosis is a rare but potentially serious complication after surgical and gynecologic procedures such as oophorectomy and hysterectomy. The association of this event with laparoscopic hysterectomy in particular, is very rare. Only two cases have been described so far. PRESENTATION OF CASE: We present a case of ovarian vein thrombosis after laparoscopic hysterectomy in a 40-year-old with deep endometriosis and multiple intramural uterine myomas. Laparoscopic hysterectomy, left oophorectomy, right salpingectomy, and suspension (ovariopexy) of the right ovary on the ipsilateral round ligament of the uterus were performed, using bipolar electrocautery as a hemostatic tool. DISCUSSION: The 7th postoperative day the patient presented to our hospital complaining of abdominal pain and fever. An abdominal CT scan demonstrated a filling defect and enlargement of the right ovarian vein, a finding compatible with ovarian vein thrombosis. She was treated with low molecular weight heparin (LMWH). On the 19th postoperative day, an MRI scan was performed and did not reveal any pathological findings of the right ovarian vein. The patient was discharged on LMWH for three months. Post treatment evaluation for thrombophilia was negative for pathological findings. CONCLUSION: Our case is a very rare condition. Only two 'similar' cases have been described in the literature so far. Bipolar electrocautery and ovariopexy on the ipsilateral round ligament during laparoscopic hysterectomy should be evaluated further as possible contributing mechanisms for the thrombus formation. PMID- 29017138 TI - Pitfalls and errors in measuring jitter. AB - The safety factor of neuromuscular transmission can be assessed by measuring the neuromuscular jitter, which reflects the time variability of processes in the motor end-plate. Jitter is increased in any condition with disturbed end-plate function, such as myasthenic conditions and ongoing reinnervation. Jitter is increasingly being measured with concentric needle (CN) electrodes, which are more prone to artefacts than single fiber EMG recordings. The objective of this review is to identify and demonstrate pitfalls that can be seen with CN jitter measurements, made with both voluntary activation and electrical stimulation. With voluntary activation, errors are caused by poor signal quality; inappropriate time reference points on the signal; an irregular firing rate; and signals with dual latencies, i.e., "flip-flop." With electrical stimulation, additional errors result from insufficient stimulation intensity; from abrupt change in firing rate; and from axon reflexes. Many pitfalls cannot be avoided during recording and can only be detected during post-processing. It is critical to be aware of these artefacts when measuring jitter with CN electrodes. PMID- 29017139 TI - Do serum BDNF levels vary in self-harm behavior among adolescents and are they correlated with traumatic experiences? AB - The aim of this study was to compare serum brain-derived neurotrophic factor (BDNF) levels between adolescents that harm themselves, those that receive psychiatric treatment but do not harm themselves, healthy adolescents, and childhood traumas and to investigate the relationship between traumatic experiences and serum BDNF levels. The cases were divided into two groups of 40 adolescents exhibiting self-harm behavior (self-harm/diagnosed group) and 30 adolescents receiving psychiatric treatment but not exhibiting self-harm behaviors (non self-harm/diagnosed group). The control group (healthy control group) consisted of 35 healthy adolescents with no psychiatric disorders or self harm behaviors. The adolescents were asked to fill in the Inventory of Statements About Self Injury (ISAS) and Childhood Trauma Questionnaire (CTQ). For BDNF measurement, blood samples were taken from the cases and controls. The serum BDNF level of self-harming adolescents who used the self-cutting method was significantly lower than that of other groups, and serum BDNF levels decreased with the increase in the emotional neglect and abuse severity of self-harming adolescents during childhood. In our study, serum BDNF levels decreased with the increase in emotional abuse in self-harming adolescents. This finding may indicate that neuroplasticity can be affected by a negative emotional environment during the early period. PMID- 29017140 TI - Lifelong learning of human actions with deep neural network self-organization. AB - Lifelong learning is fundamental in autonomous robotics for the acquisition and fine-tuning of knowledge through experience. However, conventional deep neural models for action recognition from videos do not account for lifelong learning but rather learn a batch of training data with a predefined number of action classes and samples. Thus, there is the need to develop learning systems with the ability to incrementally process available perceptual cues and to adapt their responses over time. We propose a self-organizing neural architecture for incrementally learning to classify human actions from video sequences. The architecture comprises growing self-organizing networks equipped with recurrent neurons for processing time-varying patterns. We use a set of hierarchically arranged recurrent networks for the unsupervised learning of action representations with increasingly large spatiotemporal receptive fields. Lifelong learning is achieved in terms of prediction-driven neural dynamics in which the growth and the adaptation of the recurrent networks are driven by their capability to reconstruct temporally ordered input sequences. Experimental results on a classification task using two action benchmark datasets show that our model is competitive with state-of-the-art methods for batch learning also when a significant number of sample labels are missing or corrupted during training sessions. Additional experiments show the ability of our model to adapt to non-stationary input avoiding catastrophic interference. PMID- 29017141 TI - Premonitory urges and tics in Tourette syndrome: computational mechanisms and neural correlates. AB - Tourette syndrome is characterized by open motor behaviors - tics - but another crucial aspect of the disorder is the presence of premonitory urges: uncomfortable sensations that typically precede tics and are temporarily alleviated by tics. We review the evidence implicating the somatosensory cortices and the insula in premonitory urges and the motor cortico-basal ganglia-thalamo cortical loop in tics. We consider how these regions interact during tic execution, suggesting that the insula plays an important role as a nexus linking the sensory and emotional character of premonitory urges with their translation into tics. We also consider how these regions interact during tic learning, integrating the neural evidence with a computational perspective on how premonitory-urge alleviation reinforces tics. PMID- 29017142 TI - Mechanisms of antidiabetic effects of flavonoid rutin. AB - Several lines of evidence suggest that flavonoids that originated from vegetables and medicinal plants have beneficial effects on diabetes by improving glycemic control, lipid profile, and antioxidant status. Rutin is a flavonoid found in many plants and shows a wide range of biological activities including anti inflammatory, antioxidant, neuroprotective, nephroprotective, and hepatoprotective effects. In this review, the antihyperglycemic property of rutin and its protective effects against the development of diabetic complications are discussed. Proposed mechanisms for the antihyperglycemic effect of rutin include a decrease of carbohydrates absorption from the small intestine, inhibition of tissue gluconeogenesis, an increase of tissue glucose uptake, stimulation of insulin secretion from beta cells, and protecting Langerhans islet against degeneration. Rutin also decreases the formation of sorbitol, reactive oxygen species, advanced glycation end-product precursors, and inflammatory cytokines. These effects are considered to be responsible for the protective effect of rutin against hyperglycemia- and dyslipidemia-induced nephropathy, neuropathy, liver damage, and cardiovascular disorders. Taken together, the results of current experimental studies support the potential of rutin to prevent or treat pathologies associated with diabetes. Well-designed clinical studies are suggested to evaluate advantages and limits of rutin for managing diabetes. PMID- 29017143 TI - Protective effect of carvacrol on acetic acid-induced colitis. AB - The pharmacological therapy for inflammatory bowel diseases continues to be problematic, and requires new alternative options. In this study, we tested the hypothesis that carvacrol (CAR), a phenolic monoterpene with anti-inflammatory and antioxidant activities, can treat experimental colitis in mice. C57BL/6 mice (n=8/group) were subjected to intrarectal administration of acetic acid (5%) to induce colitis. Mice were pretreated with CAR (25, 50 or 100mg/kg, p.o.) every 12h for three days prior to the induction. Abdominal hyperalgesia, macroscopic and microscopic colon damage, myeloperoxidase (MPO) activity, tumor necrosis factor (TNF)-alpha and interleukin (IL)-1beta levels, oxidative stress markers, and antioxidant enzyme activities were evaluated. Pretreatment with all doses of CAR significantly decreased abdominal hyperalgesia and colon MPO activity and TNF alpha and IL-1beta levels. A reduction in macroscopic and microscopic damage (p<0.05) was observed at doses of 50 and 100mg/kg CAR. Pretreatment with CAR significantly reduced lipid peroxidation (for all doses) and increased sulfhydryl groups (at 100mg/kg). This effect was accompanied by a significant increase in catalase, superoxide dismutase, and glutathione peroxidase activities. These findings indicate that CAR protected mice from acetic acid-induced colitis by reducing inflammatory, nociceptive, and oxidative damages. PMID- 29017145 TI - Synergetic stimulation of nanostructure and chemistry cues on behaviors of fibroblasts and endothelial cells. AB - It has been widely accepted that cell behaviors can be affected by multiple kinds of biomaterial stimulation signals. Although many literatures have focused on studying the multiple biomaterials stimulatory cues in affecting cellular behaviors, systematic studies on the effects of individual and combination of multiple biomaterials stimulatory cues in regulating cellular behaviors and their potential possible mechanisms have rarely been reported. We hypothesized that tissue engineering scaffolds with enhanced bioactivity can be designed if synergetic effects between different kinds of biomaterial stimulation cues in affecting cells behaviors can be found and applied. To prove our concept, in this study, electrospun nanofibers were used to provide structure cues and bioactive glass (BG) ion extracts were used to provide chemistry cues. The effects of single type of electrospun nanofiber structure cues, single type of BG chemical cues and combined application of the two types of stimulatory cues on behaviors of human dermal fibroblasts (HDFs) and human umbilical vein endothelial cells (HUVECs) were evaluated. Results showed that the nanostructure cues of electrospun nanofibers mainly affected cell morphology and cytoskeleton distribution while the chemistry cues of BG ion extracts played important roles in promoting cell proliferation. Both of the electrospun nanofiber structure and BG chemistry cues contributed to cell differentiation, including extracellular matrix synthesis of HDFs and vascularization of HUVECs. Interestingly, when the two kinds of stimulatory cues were applied together, obvious synergetic effects were observed as the combination of the two stimulatory cues showed the strongest stimulation effects on cell differentiation among all groups. Taken together, it is feasible to simultaneously apply two or more kinds of biomaterial stimulation signals to synergistically affect cell behaviors and enhance tissue regeneration, which is critical for instructing the design of tissue engineering scaffolds or biomaterial substrates with improved bioactivity. PMID- 29017144 TI - Anxiolytic effect of fatty acids and terpenes fraction from Aloysia triphylla: Serotoninergic, GABAergic and glutamatergic implications. AB - Aloysia triphylla (Verbenaceae) is an aromatic medicinal plant, and it is used for the treatment of "nervous" problems as, "sadness" and "nervousness". While, there are no reports about its pharmacological activity in animal models. The objective of this work was to evaluate the anxiolytic effect of the extracts and fractions of this species and to measure the interaction of the most active fraction with serotonergic, glutamatergic and GABAergic drugs. An elevated plus maze test was carried ought where the methanol (AtM), dicloromethane (AtD) and hexanic (AtH) extracts presented anxiolytic activity in mice when exposed to the test. Also, different fractions obtained from the AtD were evaluated (AtF1, AtF2 and AtF3, 15mg/kg), and showed that fraction AtF1 possessed the anxiolytic activity, in the same model. Then, AtF1 was co-administered with different drugs, which act on GABAergic (bicuculline, picrotoxin, pentylenetetrazol, baclofen and phaclofen), or serotononinergic (DOI, 8-OH-DPAT, WAY 100635 and ketanserine) or glutamatergic (NMDA, MPEP and MK-801) systems. The anxiolytic activity of AtF1 was modified by GABAergic and serotoninergic drugs. Chemical analysis of this fraction by using GC-MS, showed that it contains hexadecanoic acid, hexadecanoic acid methyl ester, octadecanoic acid methyl ester, eicosanoic acid methyl ester, vitamin E, alpha-amiryn, campesterol, sitosterol, stigmastan-2,22, dien-3-ol (4) and stigmasta 5, 24 (28) dien-3-ol. PMID- 29017146 TI - Fouling behavior of poly(ether)sulfone ultrafiltration membrane during concentration of whey proteins: Effect of hydrophilic modification using atmospheric pressure argon jet plasma. AB - The aim of the study was to investigate the effects of hydrophilic surface modification via atmospheric pressure jet plasma (ApJPls) on the fouling propensity of polyethersulfone (PES) ultrafiltration (UF) membranes during concentration of whey proteins. The distance from nozzle to substrate surface of 30mm and the exposure period of 5 times were determined as the most effective parameters enabling an increase in DeltaGiwi value of the plain membrane from (-) 14.92+/-0.89mJ/m2 to (+) 17.57+/-0.67mJ/m2. Maximum hydrophilicity and minimum surface roughness achieved by argon plasma action resulted in better antifouling behavior, while the hydraulic permeability and the initial permeate flux were decreased sharply due to the plasma-induced surface cross-linking. A quite steady state flux was obtained throughout the UF with the ApJPls modified PES membrane. The contribution of Rfrev to Rt, which was 94% for the UF through the plain membrane, decreased to 43% after the plasma treatment. The overall results of this study highlighted the ApJPls modification decreased the fouling propensity of PES membrane without affecting the original protein rejection capability and improved the recovery of initial permeate flux after chemical cleaning. PMID- 29017147 TI - Iontophoretic transdermal delivery using chitosan-coated PLGA nanoparticles for positively charged drugs. AB - Recently, poly(dl-lactide-co-glycolide) (PLGA) nanoparticles prepared using a combination of an antisolvent diffusion method with preferential solvation was shown to be beneficial for the iontophoretic transdermal delivery of therapeutic agents. Also, this preparation method can contain a hydrophilic drug. However, since PLGA nanoparticles were negatively charged, it was difficult to apply iontophoresis for positively charged hydrophilic drugs. In this study, we prepared positively charged PLGA nanoparticles containing donepezil hydrochloride (DP). DP was used as a positively charged hydrophilic drug model. The PLGA nanoparticles were coated with chitosan hydroxypropyltrimonium chloride. The average particle diameter of the nanoparticles was 117.7+/-60.6nm and the surface charge number density changed from negative to positive. Ex vivo skin accumulation study was carried out using abdominal rat skin and a Franz-type diffusion cell with/without iontophoresis. When iontophoresis was applied, the DP concentration in the rat skin of chitosan-coated PLGA nanoparticles was 2.2 times higher than that of non-coated PLGA nanoparticles. This indicated that chitosan coated PLGA nanoparticles were suitable for iontophoresis. To investigate the transdermal delivery route of the nanoparticles, we prepared chitosan-coated PLGA nanoparticles containing DP, coumarin-6, and rhodamine 6G. Coumarin-6 and rhodamine 6G were used as a trace marker of the PLGA nanoparticles and positively charged hydrophilic drug model, respectively. From the results of ex vivo accumulation test of this fluorescent nanoparticles, it was suggested that positively charged hydrophilic drugs reached the hair follicles as a nanoparticle, and then they were released from the nanoparticles. PMID- 29017148 TI - Inhibition of neuronal autophagy mediates longevity. PMID- 29017149 TI - BubR1 and brain aging. PMID- 29017150 TI - Collection, Evaluation, and Coagulum Dissolution of Semen from Goeldi's Monkey, Callimico goeldii. AB - Research on Neotropical primates' reproduction is necessary due to the lack of available information and the increasing threat to these species. Callimico goeldii is listed as Vulnerable on the IUCN Red List of Threatened Species. This study aimed to test rectal electrostimulation for semen collection and evaluate seminal characteristics. Therefore, semen from 6 captive Goeldi's monkeys was collected and, for the first time, seminal characteristics are described. Coagulum formation was noted in all ejaculates, and we obtained partial or complete liquefaction of the samples. Results were (means +/- SD): volume = 26.9 +/- 11.87 MUL; pH = 7.61 +/- 0.28; concentration = 143.18 +/- 174.96 * 106 spermatozoa/mL; total sperm motility = 83.33 +/- 5.16%; linear progressive motility = 46 +/- 24.08%; plasma membrane integrity = 36.38 +/- 16.11%; acrosome integrity using fast-green/bengal-rose staining = 63.41 +/- 11.72%, and kit Spermac(r) = 69.36 +/- 11.81%; abnormal sperm = 72.5 +/- 17.7%, with 16.2 +/- 7.7% major defects and 56.3 +/- 10% minor defects; sperm with high mitochondrial activity class I = 16.45 +/- 22.25%. Rectal electrostimulation was an efficient method for semen collection in this species. Investigations are required to improve semen collection and handling, including cryopreservation methods. PMID- 29017151 TI - The Clinical Significance of Physical Activity in Maintenance Dialysis Patients. AB - BACKGROUND: The aim of the present study was to evaluate the effects of physical activity on various aspects in Asian dialysis patients. METHODS: This was a retrospective cohort study. Study participants were recruited from 27 hospitals or dialysis centers in Korea (n = 1611). The participants were divided into 3 groups according to the degree of regular exercise: Inactive group, Intermediate group, and Active group. RESULTS: The proportions of patients with frailty and the presence of each component decreased as physical activity increased. The presence and numbers of disabilities decreased as physical activity increased. The number of participants with a history of fall during the last 12 months was 149 (20.5%) in the Inactive group, 88 (16.9%) in the Intermediate group, and 48 (13.2%) in the Active group. Physical component scale and mental component scale scores increased as physical activity increased. The survival rate for all-cause death at 500 days was 95.5% in the Active group, 95.2% in the Intermediate group, and 93.5% in the Inactive group. CONCLUSION: High physical activity was associated with favorable results for most health-related quality of life scale scores, including frailty, disability, and exhaustion, in Korean dialysis patients. PMID- 29017153 TI - Bipolar Disorder and/or Creative Bipolarity: Robert Schumann's Exemplary Psychopathology - Combining Symptomatological and Psychosocial Perspectives with Creativity Research. AB - The psychopathological condition of Robert Schumann has been a prominent object of study in psychiatry since his hospitalization in 1854. Renowned psychiatrists have diagnosed Schumann with syphilis, schizophrenia, and bipolar and personality disorders. Until today, these analyses of his symptomatology have led to contradictory results. Recent discussion has suggested that his hospitalization was due to professional failure and separation wishes on the part of his wife, her family, and her friends. In line with this hypothesis is the opinion that the separation insisted upon by Clara Schumann was reinforced by the economic interests of the psychiatrist who kept Schumann in custody for 2 years until his death in 1856. In this article, we trace the complex interaction of bipolar vulnerability and pathogenic life events with hypersensitive talent and "creative bipolarity," defined as the capacity, motivation, and resilience to transform emotional stress and cognitive inconsistency into coherent artistic products. Finally, we present our conclusions about comprehensive psychiatric and psychotherapeutic treatment with respect to "creative bipolarity." PMID- 29017152 TI - High Uric Acid-Induced Epithelial-Mesenchymal Transition of Renal Tubular Epithelial Cells via the TLR4/NF-kB Signaling Pathway. AB - BACKGROUND: Hyperuricemia is an independent risk factor for causing chronic kidney disease and contributes to kidney fibrosis. After urate crystals get deposited in the kidney, they can cause hyperuricemia nephropathy, leading to glomerular hypertrophy and renal tubular interstitial fibrosis. Recent data showed that uric acid (UA) could induce epithelial mesenchymal transition (EMT) of renal tubular cells, in which NRLP3 inflammatory pathway was involved. However, whether TLR4/NF-kappaB signaling pathway is also involved in EMT of renal tubular cells induced by UA is not clear. METHODS: Human renal tubular epithelial cells (HK-2) were directly treated with UA and the phenotypic transition was detected by morphological changes and the molecular markers of EMT. The activation of the TLR4/NF-kappaB signaling pathway induced by UA was measured by Western blot and its involvement was further confirmed by the inhibition of NF-kappaB activation or knockdown of toll like receptor 4 (TLR4) expression. RESULTS: UA induced obvious morphological changes of HK-2 cell, accompanied with altered molecular markers of EMT including fibronectin, alpha SMA and E-cadherin. In addition, UA significantly upregulated the gene expression of interleukin-1beta and tumor necrosis factor-alpha in a time- and dose dependent manner. Furthermore, UA significantly activated the TLR4/NF-kappaB signaling pathway in HK-2 cells, while the inhibition of the TLR4 expression by siRNA and NF-kappaB activation by PDTC significantly attenuated EMT induced by UA in HK-2 cells. CONCLUSIONS: UA can induce EMT in renal tubular epithelial cells by the activation of the TLR4/NF-kappaB signaling pathway, and the targeted intervention of the TLR4/NF-kappaB signaling pathway might effectively inhibit UA induced renal interstitial fibrosis mediated by EMT. PMID- 29017154 TI - Screening Performance of Placental Growth Factor for the Prediction of Low Birth Weight and Adverse Intrapartum and Neonatal Outcomes in a Term Low-Risk Population. AB - INTRODUCTION: Fetuses who fail to reach their genetic growth potential are thought to have sub-optimal placental function. Low placental growth factor (PlGF) levels have been shown to be predictive of placentally mediated conditions, such as pre-eclampsia or fetal growth restriction. We investigated the screening performance of PlGF for the prediction of low birth weight (<10th centile for gestation) and adverse intrapartum and neonatal outcomes in apparently low-risk term pregnancies. MATERIALS AND METHODS: Maternal PlGF levels were measured fortnightly in a blinded, prospective, observational study from 36 weeks of pregnancy. Women and clinicians were blinded to PlGF results, and pregnancies were managed according to local policies and guidelines. Intrapartum and neonatal outcomes were recorded. PlGF was analysed for association with, and predictive capacity for, low birth weight, caesarean section for intrapartum fetal compromise (CS-IFC) and adverse neonatal outcomes. RESULTS: A total of 438 women were included in the final analysis. Lower PlGF levels were associated with low birth weight, CS-IFC and adverse neonatal outcome. For a false-positive rate of 10 and 20%, respectively, the corresponding sensitivities were 9.7-11.1% and 22.2-26.8%. CONCLUSION: As a sole predictor for low birth weight, CS-IFC and adverse neonatal outcome, PlGF was poor as a test. PMID- 29017155 TI - Effectiveness of IHD with Adsorptive PMMA Membrane in Myeloma Cast Nephropathy: A Cohort Study. AB - BACKGROUND: In patients with cast nephropathy and acute kidney injury (AKI) requiring dialysis, the reduction of serum free light chains (FLC) using chemotherapy and intensive hemodialysis (IHD) with a high cut-off filter may improve renal and patient outcomes. We evaluated the effectiveness of a combination of chemotherapy and IHD with an adsorbent polymethylmethacrylate membrane (IHD-PMMA) on renal recovery and survival. METHODS: A single-center retrospective cohort-study was conducted. Between 2007 and 2014, patients with dialysis-dependent acute cast nephropathy treated with chemotherapy and IHD-PMMA were included. Patients had six 6-h hemodialysis sessions a week, until predialysis serum FLC fell below 200 mg/L, for a maximum of 3 weeks. Primary outcomes were renal recovery, defined as dialysis independence, and survival. RESULTS: Seventeen patients were included, all with stage 3 AKI. All received chemotherapy, mostly based on bortezomib and steroids (88%). Twelve patients (71%) achieved renal recovery, usually within 60 days (92%). At 3 months, the overall hematological response rate was 57%; hematological response was maintained for at least 2 years in 86% of responders. At 6, 12, and 24 months, 76, 75, and 62% of patients were alive, respectively. Higher reduction in involved FLC by day 12 (p = 0.022) and day 21 (p = 0.003) was associated with renal recovery. Patients with FLC reduction rate >50% by day 21 experienced a lower mortality (hazard ratio 0.10, 95% CI 0.02-0.63). CONCLUSION: In patients with dialysis-dependent myeloma cast nephropathy, early FLC removal by IHD-PMMA combined with chemotherapy was associated with high rates of renal recovery and survival. PMID- 29017157 TI - Impact of the Number of Metastatic Tumors Treated by Stereotactic Radiosurgery on the Dose to Normal Brain: Implications for Brain Protection. AB - PURPOSE/OBJECTIVES: The purpose of this study was to evaluate the effect of the number of brain lesions for which stereotactic radiosurgery (SRS) was performed on the dose volume relationships in normal brain. MATERIALS AND METHODS: Brain tissue was segmented using the patient's pre-SRS MRI. For each plan, the following data points were recorded: total brain volume, number of lesions treated, volume of brain receiving 8 Gy (V8), V10, V12, and V15. RESULTS: A total of 225 Gamma Knife(r) treatments were included in this retrospective analysis. The number of lesions treated ranged from 1 to 29. The isodose for prescription ranged from 40 to 95% (mean 55%). The mean prescription dose to tumor edge was 18 Gy. The mean coverage, selectivity, conformity, and gradient index were 97.5%, 0.63, 0.56, and 3.5, respectively. The mean V12 was 9.5 cm3 (ranging from 0.5 to 59.29). There was no correlation between the number of lesions and brain V8, V12, V10, or V15. There was a direct and statistically significant relationship between the brain volume treated (V8, V10, V12, and V15) and total volume of tumors treated (p < 0.001). In our study, the integral dose to the brain exceeded 3 J when the total tumor volume exceeded 25 cm3. CONCLUSIONS: The number of metastatic brain lesions treated bears no significant relationship to total brain tissue volume treated when using SRS. The fact that the integral dose to the brain exceeded 3 J when the total tumor volume exceeded 25 cm3 is useful for establishing guidelines. Although standard practice has favored using whole brain radiation therapy in patients with more than 4 lesions, a significant amount of normal brain tissue may be spared by treating these patients with SRS. SRS should be carefully considered in patients with multiple brain lesions, with the emphasis on total brain volume involved rather than the number of lesions to be treated. PMID- 29017156 TI - The Missing Link in the Pathophysiology of Vascular Cognitive Impairment: Design of the Heart-Brain Study. AB - BACKGROUND: Hemodynamic balance in the heart-brain axis is increasingly recognized as a crucial factor in maintaining functional and structural integrity of the brain and thereby cognitive functioning. Patients with heart failure (HF), carotid occlusive disease (COD), and vascular cognitive impairment (VCI) present themselves with complaints attributed to specific parts of the heart-brain axis, but hemodynamic changes often go beyond the part of the axis for which they primarily seek medical advice. The Heart-Brain Study hypothesizes that the hemodynamic status of the heart and the brain is an important but underestimated cause of VCI. We investigate this by studying to what extent hemodynamic changes contribute to VCI and what the mechanisms involved are. Here, we provide an overview of the design and protocol. METHODS: The Heart-Brain Study is a multicenter cohort study with a follow-up measurement after 2 years among 645 participants (175 VCI, 175 COD, 175 HF, and 120 controls). Enrollment criteria are the following: 1 of the 3 diseases diagnosed according to current guidelines, age >=50 years, no magnetic resonance contraindications, ability to undergo cognitive testing, and independence in daily life. A core clinical dataset is collected including sociodemographic factors, cardiovascular risk factors, detailed neurologic, cardiac, and medical history, medication, and a physical examination. In addition, we perform standardized neuropsychological testing, cardiac, vascular and brain MRI, and blood sampling. In subsets of participants we assess Alz-heimer biomarkers in cerebrospinal fluid, and assess echocardiography and 24-hour blood pressure monitoring. Follow-up measurements after 2 years include neuropsychological testing, brain MRI, and blood samples for all participants. We use centralized state-of-the-art storage platforms for clinical and imaging data. Imaging data are processed centrally with automated standardized pipelines. RESULTS AND CONCLUSIONS: The Heart-Brain Study investigates relationships between (cardio-)vascular factors, the hemodynamic status of the heart and the brain, and cognitive impairment. By studying the complete heart-brain axis in patient groups that represent components of this axis, we have the opportunity to assess a combination of clinical and subclinical manifestations of disorders of the heart, vascular system and brain, with hemodynamic status as a possible binding factor. PMID- 29017159 TI - Picrasidine I from Picrasma Quassioides Suppresses Osteoclastogenesis via Inhibition of RANKL Induced Signaling Pathways and Attenuation of ROS Production. AB - BACKGROUND/AIMS: Osteoporosis is a metabolic bone disorder that tortures about millions of people worldwide. Recent study demonstrated agents derived from picrasma quassioides is a promising drug for targets multiple signaling pathways. However its potential in treatment of bone loss has not been fully understood. METHODS: The bone marrow macrophages (BMMs) were cultured and induced with M-CSF and RANKL followed by picrasidine I (PI) treatment. Then the effects of PI on osteoclast formation were evaluated by counting tartrate-resistant acid phosphatase (TRAP)-positive multinucleated cells. Moreover, effects of PI on bone resorption activity of mature osteoclast were studied through bone resorption pit counting and actin ring structure analysis. Further, the involved potential signaling pathways cross-talking were investigated by performed Western blotting and quantitative real-time PCR examination. RESULTS: Results demonstrated PI strongly inhibited RANKL induced osteoclast formation from its precursors. Mechanistically, the inhibitory effect of PI on osteoclast differentiation was due to the suppression of osteoclastogenic transcription factors, c-Fos and NFATc1. Moreover, PI markedly blocked the RANKL-induced osteoclastogenesis by attenuating MAPKs and NF-kappaB signaling pathways. In addition, PI decreased the ROS generation in osteoclast and osteoblast. CONCLUSION: Taken together our data demonstrate that PI has antiosteoclastogenic effect by inhibiting inflammation induced activation of MAPKs, NF-kappaB and ROS generation followed by suppressing the gene expression of c-Fos and NFATc1 in osteoclast precursors. PMID- 29017158 TI - Beneficial Effects of n-3 Fatty Acids on Cardiometabolic and Inflammatory Markers in Type 2 Diabetes Mellitus: A Clinical Trial. AB - OBJECTIVE: To determine the effect of supplementation with n-3 polyunsaturated fatty acids (PUFAs) on circulatory resistin and monocyte chemoattractant protein 1 (MCP-1) levels in type 2 diabetes mellitus (T2DM) patients. SUBJECTS AND METHODS: This was a 10-week, placebo-controlled, double-blind, randomized trial of n-3 PUFAs (2,700 mg/day) versus placebo (soft gels containing 900 mg of edible paraffin). Forty-four T2DM patients were supplemented with n-3 PUFAs and another 44 patients received placebo (3 patients discontinued the trial). Serum resistin, MCP-1, and the lipid profile were measured before and after supplementation. The adiponectin-resistin index (1 + log10 [resistin] - log10 [adiponectin]) and atherogenic index (log10 triglyceride/high-density lipoprotein cholesterol) of plasma (an indicator of cardiovascular complications) were assessed. The independent Student t test was used to assess the differences between the supplement and placebo groups and the paired t test to analyze the before/after changes. RESULTS: In this study, n-3 PUFAs reduced serum MCP-1 levels (from 260.5 to 230.5 pg/mL; p = 0.002), but they remained unchanged in the placebo group. n-3 PUFAs could not decrease serum resistin levels. The adiponectin-resistin index was significantly reduced after supplementation with n-3 PUFAs when compared to the placebo. The atherogenic index was also significantly improved after supplementation with n-3 PUFAs (from 1.459 to 1.412; p = 0.006). CONCLUSIONS: The MCP-1 levels and lipid profile were improved after supplementation with n-3 PUFAs, but resistin serum levels were not changed. Hence, the anti-inflammatory effects of n-3 PUFAs might be mediated by targeting MCP-1. PMID- 29017160 TI - Role of Molecular Biology in Diagnosis and Characterization of Vulvo-Vaginitis in Clinical Practice. AB - The diagnosis of vulvo-vaginal complaints has always been enigmatic in obstetrics and gynecology. Patients with clear, pathognomonic symptoms end up with a proper diagnosis and treatment most of the time, but unfortunately we are now living in a world where women reach out to the Internet and readily get all information as to which disease their symptoms correspond to and also find the appropriate treatment "over-the-counter." Because of this trend, we as specialists are increasingly confronted with patients with complex and combined conditions. At the same time, extremely sensitive and accurate diagnostic tools are now being developed at a rapid pace, allowing the physicians to diagnose vulvo-vaginal disease with a substantially increased precision. Moreover, many of these molecular biology (MB)-based tests have become so common and affordable that self sampling and self-testing are no longer utopia. On the other hand, too much information that is too readily available and that is too affordable also encompasses pitfalls, leading to gross overtreatment and psychological burden. As experienced caregivers, we should supervise these evolutions, define their place and proper use as diagnostic tools, utilize their potential as ad hoc tools to follow-up treatment efficacy and guide how such tools can be used for responsible self-testing. In the present paper, responding to the need for appropriate, quality assured and accessible tests for vulvo-vaginitis and the huge potential delivered by the rapidly developing MB methods, we recommend the need for a broad and regular discussion forum, composed of both clinical and technical experts and opinion makers, in order to match the needs with the huge opportunities and ideally combine the initiatives and forces into the same direction. This forum should then translate conceived strategies into regularly updated, evidence-based national and international guidelines. PMID- 29017161 TI - Prognostic Factors for Survival in Patients with Advanced Intrahepatic Cholangiocarcinoma Treated with Gemcitabine plus Cisplatin as First-Line Treatment. AB - OBJECTIVES: Intrahepatic cholangiocarcinoma (ICC) is a rare type of liver cancer. No clinically useful prognostic factors have been reported for patients with advanced ICC. In the present study, we aimed to evaluate the clinical prognostic factors of patients with advanced ICC receiving gemcitabine plus cisplatin combination therapy (GC) as standard first-line chemotherapy. METHODS: A retrospective analysis was performed of the data of patients with ICC treated at our institution from March 2011 to January 2016. We used the Cox regression model and estimated the hazard ratios of potential prognostic factors for survival. RESULTS: Of 216 patients with biliary tract cancer receiving GC as first-line chemotherapy, we extracted data for 77 patients who were diagnosed with ICC and received GC as first-line chemotherapy. The median overall survival was 13.8 months (95% CI, 8.9-18.6). In multivariate analysis, pretreatment serum lactate dehydrogenase (hazard ratio [HR]: 2.53, p = 0.005), C-reactive protein (HR: 3.06, p = 0.001), and carcinoembryonic antigen (HR: 2.39, p = 0.03) levels were significantly associated with overall survival. CONCLUSIONS: Readily available clinical laboratory values reliably predicted the prognosis of ICC patients receiving GC therapy. If validated in other studies, these results may provide a useful tool for individual patient-risk evaluation and the design and interpretation of future trials. PMID- 29017164 TI - Aspirin Prophylaxis for Migraine with Aura: An Observational Case Series. PMID- 29017163 TI - pTis and pT1a Ipsilateral Breast Tumor Recurrence Is Associated with Good Prognosis after Salvage Surgery. AB - OBJECTIVES: Patients with ipsilateral breast tumor recurrence (IBTR) after breast conserving surgery have a poor prognosis. There is little information regarding the prognostic impact of the tumor size in patients with IBTR. METHODS: A total of 143 patients who had histologically confirmed IBTR without distant metastases and who underwent salvage surgery between 1989 and 2013 in our hospital were included. Distant disease-free survival (DDFS) was calculated according to the invasive tumor size of IBTR. The median follow-up period was 4.6 years. RESULTS: Patients with pT1b or more advanced IBTR have a high (>=20%) 5-year distant recurrence risk. There were significant differences in DDFS between patients with pTis or pT1a and those with pT1b or a more advanced stage (5-year DDFS: 94.4 vs. 70.1%, respectively, p value = 0.006). This significance remained after adjusting for other clinicopathological factors (p value = 0.04). CONCLUSION: Patients with pTis or pT1a IBTR have a good prognosis after salvage surgery for IBTR, and the omission of adjuvant chemotherapy could be considered. Further research and validation studies are needed. PMID- 29017162 TI - Patiromer Lowers Serum Potassium When Taken without Food: Comparison to Dosing with Food from an Open-Label, Randomized, Parallel Group Hyperkalemia Study. AB - BACKGROUND: Patiromer is a sodium-free, nonabsorbed, potassium binder approved for treatment of hyperkalemia. This open-label study compares the efficacy and safety of patiromer administered without food versus with food. METHODS: Adults with hyperkalemia (potassium >=5.0 mEq/L) were randomized (1:1) to receive patiromer once daily without food or with food for 4 weeks. The dosage was adjusted (maximum: 25.2 g/day) using a prespecified titration schedule to achieve and maintain potassium within a target range (3.8-5.0 mEq/L). The primary efficacy endpoint was the proportion of patients with serum potassium in the target range at either week 3 or week 4. Safety was assessed by adverse events (AEs) and laboratory testing. RESULTS: Efficacy was evaluated in 112 patients; 65.2% were >=65 years of age, 75.9% had chronic kidney disease, and 82.1% had diabetes. Baseline mean serum potassium was similar in the without-food (5.44 mEq/L) and with-food (5.34 mEq/L) groups. The primary endpoint was achieved by 87.3% (95% CI 75.5-94.7) and 82.5% (95% CI 70.1-91.3) of patients in the with food and without-food groups, respectively; least squares mean changes in serum potassium from baseline to week 4 were -0.65 and -0.62 mEq/L, respectively (p < 0.0001). The most common AEs were diarrhea and constipation. Serum K+ remained >=3.5 mEq/L in all patients; 5 patients developed serum magnesium <1.4 mg/dL, including 4 whose baseline magnesium was below the lower limit of normal. CONCLUSION: Patiromer is equally effective and well tolerated when taken without food or with food, thereby offering the potential for dosing flexibility. PMID- 29017165 TI - Feasibility of Segmental Colectomy Followed by Endoscopic Surveillance as a Treatment Strategy for Colorectal Cancer Patients with Lynch Syndrome. AB - BACKGROUND: Initial surgical procedures for colorectal cancer (CRC) patients with Lynch syndrome remain controversial. This study assessed the validity of segmental colectomy (SGC) followed by endoscopic surveillance as a treatment strategy for CRC patients with Lynch syndrome. METHODS: Among consecutive patients who underwent surgery for primary CRC between April 1985 and December 2014, 49 patients were observed to have germline mutations in a mismatch repair gene, and 38 patients who underwent SGC followed by periodic endoscopic surveillance at our institution were evaluated for metachronous CRC, need for secondary surgery, and the details of endoscopic surveillance. RESULTS: Of the 38 patients who underwent SGC followed by periodic endoscopic surveillance at our institution, 6 (15.8%) patients showed metachronous CRC, 3 (7.9%) patients underwent endoscopic resection, and the other 3 patients (7.9%) underwent secondary surgery. The dispersion of the endoscopic surveillance interval was significantly greater in patients with metachronous CRC (364 +/- 332.9 days) than in those without metachronous CRC (370 +/- 129.7 days; p < 0.001). CONCLUSIONS: SGC followed by annual endoscopic surveillance was feasible as a treatment strategy for CRC patients with Lynch syndrome, because the incidence of metachronous CRC and the need for secondary surgery were low. Annual and periodic endoscopic surveillance might be essential for early detection of metachronous CRC and prevention of secondary surgery because of metachronous CRC in CRC patients with Lynch syndrome after SGC. PMID- 29017167 TI - Hopes and Difficulties for Blastocyst Complementation. AB - CONTEXT: The clinical need for organ replacement therapies has inspired the idea of growing human organs in animal hosts. The injection of human pluripotent stem cells into animal blastocysts provides a possible strategy to accomplish this goal. Subject of Review: A recent study [Wu et al. Cell 2017;168:473-486.e415] tests the feasibility of this approach by creating chimeric embryos between humans and large domestic animals, including pigs and cattle. The study further examines the potential of combining CRISPR-Cas9 gene editing with blastocyst complementation to grow fully foreign organs in chimeric hosts. Second Opinion: Here, we consider what this report and related studies reveal about the likelihood of human-animal chimeras reaching the clinic and translating into therapies. A careful look suggests hope for eventual success in this area but also underscores important challenges that will require dedicated effort to resolve. PMID- 29017166 TI - The Role of the Mineralocorticoid Receptor in Inflammation: Focus on Kidney and Vasculature. AB - BACKGROUND: The remarkable success of clinical trials in mineralocorticoid receptor (MR) inhibition in heart failure has driven research on the physiological and pathological role(s) of nonepithelial MR expression. MR is widely expressed in the cardiovascular system and is a major determinant of endothelial function, smooth muscle tone, vascular remodeling, fibrosis, and blood pressure. An important new dimension is the appreciation of the role MR plays in immune cells and target organ damage in the heart, kidney and vasculature, and in the development of insulin resistance. SUMMARY: The mechanism for MR activation in tissue injury continues to evolve with the evidence to date suggesting that activation of MR results in a complex repertoire of effects involving both macrophages and T cells. MR is an important transcriptional regulator of macrophage phenotype and function. Another important feature of MR activation is that it can occur even with normal or low aldosterone levels in pathological conditions. Tissue-specific conditional models of MR expression in myeloid cells, endothelial cells, smooth muscle cells and cardiomyocytes have been very informative and have firmly demonstrated a critical role of MR as a key pathophysiologic variable in cardiac hypertrophy, transition to heart failure, adipose inflammation, and atherosclerosis. Finally, the central nervous system activation of MR in permeable regions of the blood-brain barrier may play a role in peripheral inflammation. Key Message: Ongoing clinical trials will help clarify the role of MR blockade in conditions, such as atherosclerosis and chronic kidney disease. PMID- 29017168 TI - Enhanced at Puberty-1 (Eap1) Expression Critically Regulates the Onset of Puberty Independent of Hypothalamic Kiss1 Expression. AB - BACKGROUND/AIMS: Enhance at puberty-1 (Eap1) is an intronless gene that regulates the onset of puberty through a network of hypothalamic genes. However, precise mechanistic events essential for Eap1-regulation of puberty have not been fully elucidated. Eap1 is thought to promote the initiation of puberty through regulation of the hypothalamic metastasis-suppressor KiSS1. We aim to investigate this hypothesis by genetically perturbing Eap1 through RNA interference in vivo. METHODS: We first engineered and optimized four sets of shRNAs that target rat Eap1 mRNA as well as one negative control shRNA. After generating lentiviral (LV) particles, we examined the suppression of Eap1 in NRK-54E cell line to select the most efficient one. Sequencelly, LV-Eap1-shRNA or controls including LV-eGFP and saline were intraventricular microinjected into 21-day-old rats. Rats were raised in appropriate conditions and we examined the time of vaginal opening, ovary physiology as well as hypothalamic puberty-regulatory genes at three developmental stages: juvenile (postnatal day PND25), early puberty (PND35), adult (PND42). RESULTS: Hypothalamic suppression of Eap1 delayed the onset of rat vaginal opening. Hematoxylin and eosin (H&E) staining revealed a significant reduction of corpus luteum (CL) at PND35, but at PND42 CL levels were normal relative to control. In conjunction with differences in phenotype and ovary morphology, GnRH expression and transcripts were also reduced at PND25 and PND35, while their levels were similar to control at PND42. KiSS1 mRNA and protein levels were not significantly different at all three developmental stages. CONCLUSION: Eap1 expression critically regulates puberty as well as GnRH expression. However, Eap1-regulation of puberty may not necessitate KiSS1/GPR54 signaling. PMID- 29017169 TI - Ox-LDL-Induced MicroRNA-155 Promotes Autophagy in Human Endothelial Cells via Repressing the Rheb/ mTOR Pathway. AB - BACKGROUND/AIMS: Autophagy, an evolutionary conserved biological process, is activated in cells to cope with various types of stress. MicroRNAs control several activities related to autophagy. However, the role of autophagy-related microRNAs during atherosclerosis is far from known. MicroRNA-155 was identified to be a crucial regulator of atherosclerosis. The objectives of the study were to analyze the effect of microRNA-155 on autophagic signaling and explore its mechanism in human endothelial cells under ox-LDL stress. METHODS: The study included human endothelial cells surrogate EA.hy926 lines (EA.hy926 cells). The expression of microRNA-155 was analyzed by quantitative reverse transcription polymerase chain reaction (qRT-PCR). The effect of microRNA-155 on endothelial autophagy was observed along with the expression levels of Rheb, LC3B, Beclin1, and P62/SQSTM1 by western blotting (WB) and immunofluorescence through microRNA 155 overexpression or inhibition. Bioinformatics analysis and Luciferase reporter assay were used to explore the target gene of microRNA-155. Cell viability and apoptosis were examined by 3-[4,5-dimethylthiazol-2-yl]-5- [3-carboxy methoxyphenyl]-2-[4-sulfophenyl]-2H-tetrazolium inner salt (MTS) assay and TdT mediated dUTP Nick-End Labeling (TUNEL) apoptosis assay. RESULTS: MicroRNA-155 expression was significantly increased under ox-LDL stress. MicroRNA-155 increased autophagic activity, while inhibition of it alleviated ox-LDL-induced autophagy in EA.hy926 endothelial cells. In addition, dual-luciferase reporter assays showed that microRNA-155 suppressed Rheb transcription. MicroRNA-155 increased autophagic activity in EA.hy926 cells via inhibition of Rheb-mediated mTOR/P70S6kinase/4EBP signaling pathway. Furthermore, we demonstrated that microRNA-155 could regulate not only autophagy but also apoptosis in EA.hy926 cells. CONCLUSIONS: MicroRNA-155 works as a regulator of endothelial function under ox-LDL stress, making it a potential candidate for the novel therapeutic strategies against atherosclerotic diseases. PMID- 29017170 TI - Impact of Typhoon Haiyan on a Philippine Tarsier Population. AB - Over the last 2 decades the Philippine tarsier (Carlito syrichta aka Tarsius syrichta) has had its conservation status revised from Endangered to Data Deficient to Near Threatened. The last status change was based on a study of the species' population density, which suggested that a single natural catastrophe could potentially wipe out the Philippine tarsier. In 2013 typhoon Haiyan hit Bohol, one of the island strongholds for this species. In this study we compare the density of the Bohol tarsier population within the Philippine Tarsier and Wildlife Sanctuary before and after the typhoon. We demonstrate that the typhoon significantly affected the density of the Philippine tarsier in the sanctuary. Before the typhoon, tarsier density was approximately 157 individuals/km2 whereas after the typhoon the density was a mere 36 individuals/km2. Prior to the typhoon, more Philippine tarsiers were found in older secondary forest than in younger secondary forest, whereas after the typhoon all observed individuals were found in relatively younger secondary forest. Vegetation plots where we observed Philippine tarsiers prior to the typhoon contained a mean of 33 trees/m2, with a mean diameter at breast height (DBH) of 24 cm, and a mean height of 4 m. After the typhoon vegetation plots contained an average of 156 trees, had a mean DBH of 6 cm, and a mean height of 2 m. Based on the IUCN Red List criteria, the reduction and fluctuation in the density of this species suggests that the conservation status of the Philippine tarsier should be changed to Vulnerable. This study indicates natural disasters can have a significant effect on the extinction risk of primates, with implications for future effects of anthropogenic climate change. PMID- 29017171 TI - Role of the TGFbeta/PDCD4/AP-1 Signaling Pathway in Nasopharyngeal Carcinoma and Its Relationship to Prognosis. AB - BACKGROUND: The objective of the present study was to evaluate the role of the TGFbeta/PDCD4/AP-1 pathway in nasopharyngeal carcinoma (NPC) and its relationship to NPC prognosis. METHODS: NPC tissues collected from 66 NPC patients were compared to 17 nasopharyngeal mucosa biopsy specimens collected as normal tissues. Immunohistochemical staining was performed to assess expression of transforming growth factor-beta receptor I (TGFbetaRI), programmed cell death 4 (PDCD4) and activator protein-1 (AP-1). The Kaplan-Meier method was applied to evaluate NPC patient overall survival (OS) and progression-free-survival (PFS). Cox regression analysis was used to estimate independent prognostic factors for NPC. The human NPC cell line CNE2 was selected and treated with SB431542, an inhibitor of TGFbetaRI; expression of TGFbetaRI and PDCD4 in CNE2 cells was determined by western blotting. NPC tissues showed higher expression of TGFbetaRI and AP-1 but lower expression of PDCD4 than normal tissues (all P < 0.05). RESULTS: The results of Kaplan-Meier analysis showed that TGFbetaRI-positive patients and AP-1-positive patients had shorter OS and PFS than TGFbetaRI negative patients and AP-1-negative patients; additionally, PDCD4-positive patients had higher OS and PFS than PDCD4-negative patients. Cox regression analysis revealed that advanced tumor stage, overexpression of TGFbetaRI and AP 1, and low expression of PDCD4 were unfavorable factors influencing OS and PFS in NPC patients. Compared with the control group, expression of TGFbetaRI decreased and that of PDCD4 increased significantly in CNE2 cells treated with the inhibitor (all P < 0.05). These findings indicate that the TGFbeta/PDCD4/AP-1 pathway may be associated with NPC development and progression. CONCLUSION: High expression of TGFbetaRI and AP-1 and low expression of PDCD4 may be unfavorable prognostic factors for NPC. PMID- 29017172 TI - The Emerging Roles of CIB1 in Cancer. AB - Calcium and integrin-binding protein 1 (CIB1) is an EF-hand calcium binding protein, which is involved in many cellular processes, including calcium signaling, cell survival and proliferation, cell migration, cell adhesion and apoptosis. A number of studies have found that CIB1 is ubiquitously expressed and is related to various human diseases, such as cancer, Alzheimer's disease (AD), cardiac hypertrophy and male infertility. The mechanism of CIB1 in human diseases is still not clear, although multiple functions of CIB1 are modulated by interacting with numerous interacting partners. As a calcium binding protein, the roles of CIB1 in calcium signaling by binding calcium or modulating some key modulators, such as calcineurin, integrin, inositol 1,4,5-trisphosphate receptor (IP3R) and taste 1 receptor member 2 (TAS1R2). The tumor promoting mechanisms of CIB1 have been described in different aspects, including promoting tumor cell cycle and proliferation, inhibiting tumor cell apoptosis, and mediating tumor cell migration and angiogenesis. In addition, multiple functions of CIB1, such as neural development, taste or gustation functions, and virus infection are also elucidated. These recent advances have significantly expanded our understanding of the knowledge of CIB1 and highlighted the potential mechanisms of CIB1 in tumor progression. PMID- 29017173 TI - Insulin Regimens to Treat Hyperglycemia in Hospitalized Patients on Nutritional Support: Systematic Review and Meta-Analyses. AB - BACKGROUND: The best insulin regimen to treat hyperglycemia in hospitalized patients on nutritional support (NS) is unclear. METHODS: We searched electronic databases to identify cohort studies or randomized clinical trials in order to evaluate the efficacy of different insulin regimens used to treat hyperglycemia in hospitalized patients on NS on diverse outcomes: mean blood glucose (MBG), hypoglycemia, length of stay in hospital, and mortality. RESULTS: Seventeen studies from a total of 5,030 were included. Enteral Group included 8 studies; 1,203 patients using rapid, glargine, NPH, or Premix insulin; MBG 108-225 mg/dL; hypoglycemia 0-13%. In indirect meta-analyses, NPH insulin ranked best for glucose control (MD 95% CI -2.50 mg/dL [2.65 to -2.35]). Parenteral Group included 4 studies; 228 patients using regular and glargine or NPH insulin; MBG 137-202 mg/dL; hypoglycemia 0-40%. In meta-analyses comparing regular insulin added to parenteral nutrition bag with glargine, MBG (MD 95% CI -3.78 mg/dL [ 11.93 to 4.37]; I2 = 0%) or hypoglycemia frequency (RR 95% CI 1.37 [0.43-4.32]; I2 = 70.7%) did not differ. The description related to hospital length of stay and mortality was inconsistent between groups. CONCLUSIONS: The best insulin regimen to treat hyperglycemia in hospitalized patients on NS has not been established; best results using insulin regimens with NPH in enteral nutrition do not seem to be clinically relevant. PMID- 29017174 TI - Cardiac Remodeling Induced by All-Trans Retinoic Acid is Detrimental in Normal Rats. AB - BACKGROUND/AIMS: This study aimed to discern whether the cardiac alterations caused by retinoic acid (RA) in normal adult rats are physiologic or pathologic. METHODS AND RESULTS: Wistar rats were assigned into four groups: control animals (C, n = 20) received a standard rat chow; animals fed a diet supplemented with 0.3 mg/kg/day all-trans-RA (AR1, n = 20); animals fed a diet supplemented with 5 mg/kg/day all-trans-RA (AR2, n = 20); and animals fed a diet supplemented with 10 mg/kg/day all-trans-RA (AR3, n = 20). After 2 months, the animals were submitted to echocardiogram, isolated heart study, histology, energy metabolism status, oxidative stress condition, and the signaling pathway involved in the cardiac remodeling induced by RA. RA increased myocyte cross-sectional area in a dose dependent manner. The treatment did not change the morphological and functional variables, assessed by echocardiogram and isolated heart study. In contrast, RA changed catalases, superoxide dismutase, and glutathione peroxidases and was associated with increased values of lipid hydroperoxide, suggesting oxidative stress. RA also reduced citrate synthase, enzymatic mitochondrial complex II, ATP synthase, and enzymes of fatty acid metabolism and was associated with increased enzymes involved in glucose use. In addition, RA increased JNK 1/2 expression, without changes in TGF-beta, PI3K, AKT, NFkappaB, S6K, and ERK. CONCLUSION: In normal rats, RA induces cardiac hypertrophy in a dose-dependent manner. The non participation of the PI3K/Akt pathway, associated with the participation of the JNK pathway, oxidative stress, and changes in energy metabolism, suggests that cardiac remodeling induced by RA supplementation is deleterious. PMID- 29017176 TI - Oxygen-ozone autohemotherapy in sacroiliitis. PMID- 29017175 TI - Body Weight Changes after Deep Brain Stimulation for Obsessive-Compulsive Disorder or Depression. AB - BACKGROUND: In 2010, we published an often-cited case report describing smoking cessation and substantial weight loss after deep brain stimulation (DBS) for obsessive-compulsive disorder (OCD) in an obese patient. To test whether this single observation was also observed in the treated population at large, the weight changes of a larger cohort of patients who underwent DBS for OCD or major depressive disorder (MDD) were studied. RESULTS: Data were available for 46 patients (30 OCD and 16 MDD patients; mean age 46.2 years, SD 10.9) with an average baseline body mass index (BMI) of 28.0 (SD 7.3), 26 of whom (57%) were overweight (n = 11), obese (n = 12), or morbidly obese (n = 3). Mean follow-up was 3.8 years (range 10 months to 8.7 years, SD 2.3), after which the average BMI was 28.1 (SD 7.0), not significantly different from baseline. The average BMI of the 15 patients with (morbid) obesity at baseline decreased from 36.8 to 34.6 (ns), while the average BMI of the 31 normal or "only" overweight patients at baseline increased from 23.8 to 25.0 (ns). CONCLUSION: There was no significant change in body weight on group level after DBS for either OCD or MDD. PMID- 29017177 TI - Patients with newly diagnosed rheumatoid arthritis are at increased risk of diabetes mellitus: an observational cohort study. AB - AIMS: To reveal the prevalence of Diabetes Mellitus (DM) in patients with newly diagnosed Rheumatoid Arthritis (RA) and evaluate the association between clinical characteristics of RA and DM as well as treatment response in newly diagnosed RA patients with DM. METHODS: Newly diagnosed, adult, RA patients, who were registered in Danish Danbio since 1st January 2010, were included. Patients' demographics, serology results including rheumatoid factor (RF), anti-cyclic citrullinated peptide antibody (anti-CCP) and antinuclear antibody (ANA) as well as disease activity score in 28 joints-C-reactive protein (DAS28-CRP) at the time of diagnosis and after 4 months (+/-1-2 months) of treatment initiation were extracted from Danbio Registry. To reveal the presence of DM, patients' electronic medical records were reviewed. The prevalence of DM in our patients was compared (using an age- and gender-matched analysis) with that expected from Danish population. RESULTS: of 439 included patients, 60.1% were female, mean of age 64.6+/-15.0 years and RA disease duration 2.6+/-1.7 years. Prevalence of DM was 57/439 (12.9%), herein type II DM 52 (91.2%) and type I DM 5 (8.8%). Except for two patients, diagnosis of DM was established prior to the diagnosis of RA. The prevalence of DM in newly diagnosed RA patients of all ages was significantly increased versus that expected from Danish population (RR=2.21, CI=1.40-3.42, P min 0.001). In addition, prevalence of DM was significantly increased with more than twice of the expected for RA patients aged 65-84. Both genders showed increased risk of DM after subgroup analysis. The presence of DM in RA patients was significantly associated with age (P min 0.001) and RA disease duration >=4 years (P =0.05). We did not find any significant associations between presence of DM and gender, RF, anti-CCP as well as ANA. Additionally, presence of DM in the RA patients was not a negative predictor of treatment response measured by the European League Against Rheumatism (EULAR) response criteria and ?DAS28-CRP. CONCLUSION: Newly diagnosed RA patients are at higher risk of DM (13% versus 5.7% in Denmark), and a high index of suspicion must be kept. PMID- 29017178 TI - Cardiovascular disease risk and androgen deprivation therapy in patients with localised prostate cancer: a prospective cohort study. AB - BACKGROUND: As androgen deprivation therapy (ADT) is increasingly being used in men with localised prostate cancer, our goal was to examine the association between ADT and the risk of cardiovascular disease (CVD). METHODS: We conducted a prospective cohort study using records of a large health-care system in California. The study included men with newly diagnosed localised prostate cancer (1998-2008) who initially underwent active surveillance (N=7637) and were followed through 2010. We examined 10 individual CVD outcomes. Cox proportional hazard models incorporated time-varying treatment variables and controlled for race/ethnicity, age, and tumour characteristics, recurrence risk, CVD medication use, and CVD risk factors. RESULTS: Of the 7637 subjects, nearly 30% were exposed to ADT. In the multivariable analyses, ADT was associated with an increased risk of heart failure (adjusted HR=1.81, 95% CI 1.40-2.32) in men without preexisting CVD. Elevated risks of arrhythmia (adjusted HR=1.44, 95% CI 1.02-2.01), and conduction disorder (adjusted HR=3.11, 95% CI 1.22, 7.91) were only observed among patients with preexisting CVD. CONCLUSIONS: In men with clinically localised prostate cancer who were initially under active surveillance, ADT was associated with a greater risk of heart failure in men without any preexisting CVD. We also found an increased risk of arrhythmia and conduction disorder in men with preexisting CVD. This study provides the basis for identifying high-risk men treated with ADT who might benefit from regular cardiac monitoring and lifestyle modification recommendations. PMID- 29017181 TI - Vitamin E in the Preterm Infant: A Forgotten Cause of Hemolytic Anemia. AB - OBJECTIVE: Vitamin E deficiency in premature infants has been associated with hemolytic anemia. Its incidence decreased after the supplementation of preterm formulas and parenteral nutrition with vitamin E. Despite this, some infants still develop hemolytic anemia and receive vitamin E. STUDY DESIGN: Retrospective analysis of 70 infants admitted to a level IV intensive care unit and who developed hemolytic anemia and were treated with vitamin E. Infants were classified into two groups based on whether or not they responded to vitamin E therapy. Statistical methods included the use of descriptive statistics and marginal logistic regression models. RESULTS: Low hematocrit and reticulocytosis before vitamin E administration were associated with adequate response to treatment. Thrombocytosis, iron treatment (duration and dose), gestational age, birth weight, and type of feedings were not. Infants who received a short duration of parenteral nutrition and were on oxygen responded to vitamin E therapy. Infants with a hematocrit <= 26% and reticulocyte of 36.1% were more likely to respond to vitamin E. CONCLUSION: Although formulas and parenteral nutrition are supplemented with vitamin E; some preterm infants may still develop hemolytic anemia. Those with anemia, reticulocytosis, and oxygen requirement may benefit from additional vitamin E. PMID- 29017182 TI - Factors and Outcomes of Persistent Pulmonary Hypertension of the Newborn Associated with Acute Kidney Injury in Thai Neonates. AB - OBJECTIVE: This study aims to determine the risk factors and outcome of persistent pulmonary hypertension of the newborn (PPHN)-associated acute kidney injury (AKI). STUDY DESIGN: Infants diagnosed with PPHN at Hat Yai Hospital from January 2012 to December 2016 were retrospectively reviewed. RESULTS: Of the 109 included PPHN infants, 28.4% (31/109) died, and AKI was found in 28.4% following neonatal KDIGO classification. Of the 31, 19 who died (61.3%) reached stage 1, 3 (9.7%) reached stage 2, and 9 (29.0%) reached stage 3. AKI (all stages combined) was significantly associated with increased mortality with an odds ratio (OR) of 8.71 (95% confidence interval [CI], 3.37-22.49). Multivariate logistic regression analysis indicated that male gender (adjusted OR = 8.56; 95% CI = 0.84-85.09) and urine output of < 1 mL/kg/h in 12 hours of admission (adjusted OR = 15.57; 95% CI = 2.58-93.98) were the main factors associated with an increased risk for AKI, while birth by cesarean delivery was associated with reduced risk of AKI (adjusted OR = 0.10; 95% CI = 0.16-0.68). CONCLUSION: The incidence of AKI in PPHN was high in this study, and this complication was also significantly associated with higher mortality. In PPHN neonates, AKI should be especially closely monitored in males and infants who have a urine output of < 1 mL/kg/h in the first 12 hours of admission. PMID- 29017179 TI - SGK1 inhibition induces autophagy-dependent apoptosis via the mTOR-Foxo3a pathway. AB - BACKGROUND: Although inhibition of SGK1 has been shown to delay cancer progression, the underlying mechanisms have not yet been elucidated. METHODS: We investigated the cellular responses to GSK650394 treatment and SGK1 silencing (or overexpression) in human prostate cancer (PCa) cell lines and PC3 xenografts by flow cytometry, western blotting, immunofluorescence, transmission electron microscopy and immunohistochemistry. RESULTS: In the present study, we demonstrated that SGK1 inhibition, mediated by either GSK650394 or SGK1 shRNA, induced G2/M arrest, apoptosis and autophagy. Furthermore, 3MA-mediated autophagy inhibition attenuated SGK1 inhibition-induced apoptosis, suggesting that induction of autophagy precedes apoptosis. Moreover, ectopic expression of SGK1 significantly attenuated the GSK650394-induced effects. Suppression of mTOR and Foxo3a phosphorylation is critical for blockade of SGK1-induced autophagy and apoptosis, at least partially via pFoxo3a (S253)-LC3 and pFoxo3a (S253)-p27 interactions. Dual inhibition of mTOR and SGK1 enhances autophagy activation and leads to synergistic cytocidal effects in PCa cells. CONCLUSIONS: In summary, our findings show that SGK1 inhibition exhibits significant antitumour effects against PCa in vitro and in vivo. This study uncovered a novel mechanism of SGK1 inhibition in PCa, which is mediated, at least in part, by inducing autophagy dependent apoptosis via the mTOR-Foxo3a pathway. PMID- 29017180 TI - Targeting apoptosis in acute myeloid leukaemia. AB - Acute myeloid leukaemia (AML) is a molecularly and clinically heterogeneous disease, and its incidence is increasing as the populations in Western countries age. Despite major advances in understanding the genetic landscape of AML and its impact on the biology of the disease, standard therapy has not changed significantly in the last three decades. Allogeneic haematopoietic stem cell transplantation remains the best chance for cure, but can only be offered to a minority of younger fit patients. Molecularly targeted drugs aiming at restoring apoptosis in leukaemic cells have shown encouraging activity in early clinical trials and some of these drugs are currently being evaluated in randomised controlled trials. In this review, we discuss the current development of drugs designed to trigger cell death in AML. PMID- 29017183 TI - Ultrasonic Assessment of Cervical Heterogeneity for Prediction of Spontaneous Preterm Birth: A Feasibility Study. AB - BACKGROUND: In a normal pregnancy, cervical collagen fibers remain organized in predictable patterns throughout most of the gestation. Cervical remodeling reflects a rearrangement of collagen fibers in which they become increasingly disordered and contribute to the pathogenesis of spontaneous preterm birth. Quantitative ultrasound analysis of cervical tissue echotexture may have the capacity to identify microstructural changes before the onset of cervical shortening. OBJECTIVE: The primary objective of this study was to examine the utility of a novel quantitative sonographic marker, the cervical heterogeneity index (HI), which reflects the relative organization of cervical collagen fibers. Also, we aimed to determine an optimal HI cut-point to predict spontaneous preterm birth. STUDY DESIGN: This retrospective cohort study employed a novel image-processing technique on transvaginal ultrasound images of the cervix in gestations between 14 and 28 completed weeks. The transvaginal sonography images were analyzed in MATLAB (MathWorks, Natick, MA) using a custom image-processing technique that assessed the relative heterogeneity of the cervical tissue. RESULTS: A total of 151 subjects were included in the study. The mean HI in subjects who delivered preterm and at term was 8.28 +/- 3.73 and 12.35 +/- 5.80, respectively (p < 0.0001). Thus, decreased tissue heterogeneity was associated with preterm birth, and increased tissue heterogeneity was associated with delivery at term. In our study population, preterm birth was associated with a short cervix (<2.5 cm), history of preterm birth and lower HI, and our findings indicate that HI may improve prediction of preterm birth. CONCLUSION: Quantitative ultrasound measurement of the cervical HI is a promising, noninvasive tool for early prediction of spontaneous preterm birth. PMID- 29017185 TI - Pruritic, Bizarre Tracks- A Vacation Souvenir. PMID- 29017184 TI - Clinical characteristics and outcome of 60 pediatric patients with malignant melanoma registered with the German Pediatric Rare Tumor Registry (STEP). AB - Background Malignant melanoma (MM) is a common malignancy in adults while it is rare in children. Thus, information on clinical behavior of pediatric MM is incomplete. Patients The German Pediatric Rare Tumor Registry (STEP) presents a prospective analysis of 60 childhood MM cases diagnosed between June 2006 and December 2014. Method Patients' ages ranged between 0 and 17 years at initial diagnosis (median age 9.6 years). Information on patient's and tumor characteristics was obtained by standardized documentation. Three-year overall survival (OS) and event-free survival (EFS) were estimated by the Kaplan-Meier test. Results Follow-up ranged from 0 to 116 months with a median of 36.5 months, however, univariate analysis was performed for 46 cases with a follow-up > 3 months, only. Cases with spitzoid histotype (40%) did not show a significantly different outcome compared to cases with non-spitzoid MM. Breslow thickness <= 2.00 mm was identified in 30% of the cases and 18% were Clark level I to III. Adjuvant therapy was used in 45% of cases. OS at 3 years was 100%, EFS 95.2%. Conclusion We present a series of cases with a high number of spitzoid malignant melanoma and advanced pediatric melanoma, but surprisingly good overall survival rates. Spitzoid and non-spitzoid MM do not differ in clinical behavior and survival. PMID- 29017186 TI - ? PMID- 29017187 TI - [Acute unilateral progressive exophthalmus]. PMID- 29017188 TI - Curcumin Protects Mitochondria and Cardiomyocytes from Oxidative Damage and Apoptosis Induced by Hemiscorpius Lepturus Venom. AB - The main aim of the current study was to determine cardio-toxicity mechanisms of H. lepturus and protective effect of curcumin against this toxin in rats, using isolated heart mitochondria and cardiomyocytes. Our findings indicated that H. lepturus venom caused significantly ((P<0.05) cytotoxicity and caspase 3 activation in cardiomyocytes and mitochondrial dysfunction including increased mitochondrial ROS level, swelling in the mitochondria, decline in the mitochondria membrane potential (MMP), decrease in the cytochrome-c oxidase activity (complex IV), decrease ATP level and finally mitochondrial outer membrane (MOM) rupture in isolated mitochondria. Our results showed that the administration of curcumin efficiently decreased (P<0.05) cytotoxicity and caspase 3 activation, ROS formation, MMP collapse, mitochondrial swelling and mitochondrial outer membrane (MOM) rupture. Our findings suggest H. lepturus venom cusses a disruptive effect on mitochondrial respiratory chain, especially on complex II, and IV that predispose cardiomyocytes to ATP depletion and death signaling that could be protected with administration of curcumin. PMID- 29017189 TI - Curcumin Affects Adipose Tissue-Derived Mesenchymal Stem Cell Aging Through TERT Gene Expression. AB - Aging and losing cell survival is one of the main problems in cell therapy. Aging of Mesenchymal Stem Cells (MSCs) is associated with a rise in intracellular reactive oxygen species, decrease in telomerase reverse transcriptase (TERT) expression and finally eroded telomere ends. Given that the production of free radicals in the aging process is effective, the use of antioxidants can help in scavenging free radicals and prevent the aging of cells. The aim of this study is to evaluate the effects of curcumin on proliferation, aging and TERT expression of rat adipose tissue-derived stem cells (rADSC). rADSCs were isolated from inguinal rat adipose tissue and their viabilities were assessed by MTT after exposure to different concentrations of curcumin. Flow-cytometry was performed for investigating the cell surface markers. Adipogenic and osteogenic differentiation were carried out to evaluate the pluripotency of rADSCs. Telomerase expression and percentage of senescent cells were evaluated using real time PCR and senescence-associated beta-galactosidase activity, respectively. The results demonstrated significant proliferation of rADSCs after 48 h treatment with 1 and 5 uM curcumin. Additionally, these concentrations could significantly reduce the population doubling time and aging of rADSCs at different passages. The findings of SA-beta-gal staining showed that curcumin significantly decreased the number of senescent cells in the 5 and 7 cell passages. Moreover, expression levels of TERT increased in the presence of 1 and 5 uM curcumin than control group (P<0.001). As a conclusion, curcumin may be a good candidate to improve lifespan of rADSCs through promoting TERT gene expression. PMID- 29017190 TI - [Factors Influencing Chronic Back Pain in Care Workers Attending to The Elderly in Germany]. AB - INTRODUCTION: The present study determined the lifetime prevalence of chronic back pain in care workers attending to the needs of elderly in Rhineland Palatinate facilities and identified potential influencing factors. METHODS: In a cross-sectional survey, 155 care workers in 5 institutions for the elderly care were interviewed with a written questionnaire. Questions from different standardised questionnaires were combined with our own questions. We complemented the examination with 2 standardized exercise tests. The data were analysed using descriptive and bivariate as well as binary logistic regression analysis. RESULTS: The nurses (83.8%) were female, and the average age was 41 years. The lifetime prevalence of chronic back pain in female care workers was 50.8%. In male elderly care workers this was 20.0%. As potential influencing factors for chronic back pain, a bad subjective state of health and a weak endurance of back muscles could be identified. CONCLUSION: The lifetime prevalence of chronic back pain was higher in the care workers taking care of the elderly than in the data of the general population. Discussed risk factors for back pain such as too many tasks not directly associated with caretaking, time pressure or too many elderly residents turned out as not significant. However, the subjective state of health and the endurance of back muscles were related to back pain. Prospective studies, which focus on physical and psychological stress, strain and resources, are needed to understand the causality of the high lifetime prevalence of chronic back pain in care workers in homes for the elderly better. PMID- 29017191 TI - [Burnout Prevention and Mobile Mindfulness: Evaluation of an App-Based Health Training Program for Employees]. AB - OBJECTIVE: Mindfulness recently attracted growing interest beyond classical therapeutic contexts and has been adopted in preventive labor contexts and occupational health. In this study, we evaluated the effectiveness of a mobile mindfulness training app regarding work and health indicators. METHODS: Participants were employees and assigned randomly to the intervention and control groups. 146 employed participants in the intervention group used the mobile application '7mind' for 14 days. Comparisons were made with 160 employed participants from the control group, who were given access to the app after finishing the study (wait-list control). RESULTS: After two weeks of use, significant effects of the training were indicated by better results for the intervention group as compared to the control group. Some of the effect sizes can be considered as large: participants in the intervention group improved in measures of mindfulness, work engagement, job satisfaction, emotional exhaustion, emotional intelligence, innovation and creativity, and self-efficacy. CONCLUSION: Conventional mindfulness training programs are organized in groups. Our study demonstrates for the first time the effectiveness of a mobile mindfulness training app in the work context. The mobile app offers an easy and flexible access to training mindfulness and improving work and health-related indicators. PMID- 29017192 TI - [Horizon Scanning in Health Care: A German Perspective]. AB - Background Decision makers in health care act in an area in which expectations increase to make beneficial new technologies available as soon as possible, to protect patients from unsafe or ineffective technologies, and to expedite or decelerate technology diffusion. Horizon Scanning (HS) is a process to identify early new and emerging technologies and to inform about their potential consequences concerning the health care system. Objectives Methods of HS, worldwide existing activities and the status quo in Germany are described. Methods In April 2015, a systematic electronic search was conducted which was supplemented by hand searching. Additionally, a qualitative acquisition of German expert knowledge in health care was realized. Results 27 formal HS systems (HSS) worldwide were identified of which 18 are current members of the "International Information Network on New and Emerging Health Technologies". Essentially, the same process steps are applied but there may be differences in methods due to different structures and interests of the health care systems. There is no official HSS in Germany. The survey of experts revealed a lack of knowledge and a varying understanding of HS, but basically there seems to be a need for this. Conclusions The systematic process of HS can be adapted to current circumstances and objectives of a specific health care system and has international acceptance. In Germany, it could enable decision makers and other stakeholders to have information early and thus support them in their decisions. PMID- 29017193 TI - [The Environmental Burden of Disease Concept]. AB - GOAL OF THE STUDY: Environmental risk factors are of great importance for public health with a considerable but often unused potential for prevention. However, knowledge about the complex associations between the environment and health effects is limited for some risk factors. A concept, which is using the existing evidence on associations between the impact of environmental factors and health effects, is the environmental burden of disease (EBD) concept. The aim of this article is to present the quantification method of the EBD concept and to discuss the advantages and its points of criticism. METHODS: The EBD concept combines morbidity and mortality data in a single measure (Disability-Adjusted Life Year, DALY) to enable a comparative description of the burden of disease. Life years are used as measurement unit. The environmental share of the total DALYs is quantified by using the attributable fraction. RESULTS: Despite its increasing application especially in the international context, the method is still criticized, because by summarizing the complex construct of health in one single measurement unit, much important information about quality of life is lost. A further criticism refers to partly arbitrarily set social value choices. Additionally, missing or insufficient data can limit the quality and validity of EBD estimations. CONCLUSION: A scientific discourse is needed to decide to what extent the EBD approach can and should be used in Germany. PMID- 29017194 TI - Non-operative Management for Uncomplicated Appendicitis: An Option to Consider. AB - AIM: The main goal of our study was to assess a 7 days long course of antibiotics for acute uncomplicated appendicitis. MATERIALS AND METHODS: From March 2014 to November 2015, all patients diagnosed with acute appendicitis have been considered to be treated by only antibiotics. Inclusion criteria included clinical (tenderness), biological (C-reactive protein [CRP] < 50), and radiological features (diameter > 6 mm). All patients were treated with intravenous amoxicillin and clavulanic acid (100 mg/kg/day) for 2 days (six doses). At the end of the treatment, clinical and paraclinical examinations included blood samples at day 7 and ultrasound (US) scan at 3 months. RESULTS: A total of 166 patients were treated and followed up prospectively during the study period. Mean age at diagnosis was 10.8 +/- 0.6 years. All children, but four were discharged with a clinical improvement after 48 hours and six intravenous antibiotics injection according to our protocol. Four children required surgery during the initial hospitalization period.Initial ultrasound scan showed a mean diameter of 7.85 +/- 1.6 mm, with inflamed fat in 124 patients (74.7%). At Day 7, the diameter was 5.2 +/- 1.6 mm (p < 0.0001).During a median follow-up of 18.8 months (3.5-18), 22 patients (13.25%) had to be managed for a novel episode of acute appendicitis after a median period of 138 days (13-270). None had to be managed for a complicated appendicitis. CONCLUSION: Non-operative treatment (NOT) is a safe alternative for the management of uncomplicated acute appendicitis in children. Further study should be conducted to determine relapse risk factors. PMID- 29017195 TI - [Old and new reflexes - and the personality of ALS patients]. PMID- 29017196 TI - [The role of eye movement desensitization and reprocessing (EMDR) in substance use disorders: A systematic review]. AB - Eye Movement Desensitization and Reprocessing (EMDR) is a therapeutic method that has been shown to be especially effective in traumatic disorders. Since the concept of an addiction memory has become widely accepted, the use of EMDR also in substance use disorders (SUD) treatment might count as a separate field. This review summarizes the current state of research on treatment effects EMDR in SUD. The literature search included the databases of PubMed and PsychInfo; four studies met the inclusion criteria. EMDR was found to be related to a decreased amount of craving, fear and depression and to an improvement of emotion regulation and management and self-esteem. Initial findings indicate a high therapeutic potential of EMDR in SUD treatment. PMID- 29017197 TI - [500 Years of Reformation: The History of Martin Luther's Pathography and its Ethical Implications]. AB - Introduction In the context of the 500th anniversary of the Reformation, it is time to take a survey of the history of Martin Luther's (1483-1546) pathography and to deduce possible conclusions from it for psychiatric practice. Results In a 1035-page work written in German between 1937 and 1941, the Dane Paul Reiter retrospectively diagnosed Luther as manic-depressive. In 1956, Grossmann was unable to prove persistent synchronicity of depressive mood and reduced motivation in Luther in the key years 1527 and 1528, which led him to conclude that Luther had a cyclothymic personality with a pyknic constitution. Discussion One very central source of Luther's life's work may have arisen from the tension between emotional constraints and crises of faith, on the one hand, and resilience and trust in God, on the other. Conclusion Luther can be used as an example of the importance of religiousness as a curative resource for the psyche. PMID- 29017198 TI - Aggressive treatment of cerebral venous sinus thrombosis (CVT) with stent retrievers and local thrombolysis: why we need a registry. AB - Purpose Anticoagulation is the first-line therapy for cerebral venous sinus thrombosis (CVT). Endovascular treatment is increasingly applied in patients deteriorating despite anticoagulation with extensive thrombosis or contraindications for anticoagulation. Experience with stent retrievers in CVT is limited. Results We present three cases of severe CVT treated with stent retrievers, thrombus aspiration and local thrombolysis. In two patients with extensive thrombosis, a partial recanalization was achieved, but only one of them showed significant improvement. Despite failed recanalization, the third patient recovered completely. Conclusions Limited experience with three cases indicates that recanalization may not necessarily result in favourable clinical outcome even in severely affected patients. Therefore, invasive procedures such as local thrombolysis and thrombectomy remain individual therapeutic options when anticoagulation fails and in patients with extensive thrombosis. PMID- 29017199 TI - [Ciguatera or why you should enquire about fish consumption in cases of cold allodynia]. AB - Ciguatoxine sind potente, von Mikroalgen produzierte, marine Biotoxine, die sich in tropischen Raubfischen, lokal und saisonal unterschiedlich stark, anreichern konnen. Kurze Zeit nach dem Fischverzehr treten gastrointestinale, neurologische und/oder kardiovaskulare Vergiftungssymptome auf. Durch die hohe Affinitat der Toxine zu neuronalen Natriumkanalen sind neurologische Symptome fur Ciguatera Vergiftungen charakteristisch. Nahezu pathognomonisch ist dabei die Kalteallodynie, bei der kalte Oberflachen als heibeta, schmerzhaft oder extrem unangenehm empfunden werden. Durch Importe von Tropenfisch tritt Ciguatera zunehmend auch in gemabetaigten Klimazonen auf. Wir erlautern anhand zweier Falle die Besonderheiten dieser Fischvergiftung. PMID- 29017200 TI - [Not Available]. PMID- 29017202 TI - [Centers in Health Care: whereto?] PMID- 29017203 TI - [Not Available]. PMID- 29017204 TI - [Not Available]. PMID- 29017205 TI - [Not Available]. PMID- 29017206 TI - [Not Available]. PMID- 29017207 TI - [Not Available]. PMID- 29017208 TI - [Not Available]. PMID- 29017209 TI - [Not Available]. PMID- 29017210 TI - [Not Available]. PMID- 29017211 TI - [Not Available]. PMID- 29017212 TI - [Not Available]. PMID- 29017213 TI - [Not Available]. PMID- 29017214 TI - [51-year-old man with with acute coronary syndrome and bipulmonary infiltrates]. PMID- 29017216 TI - Erratum for: DNA Barcoding for Industrial Quality Assurance. PMID- 29017215 TI - [Pulmonary Embolism Despite Rivaroxaban in an Obese Patient]. AB - Introduction Rivaroxaban, an oral factor Xa inhibitor, is approved for therapy of venous thromboembolism. It is unclear whether the standard dose for patients with a body mass index (BMI) > 40 kg/m2 is sufficient. History The 45-year-old patient was admitted because of increasing respiratory distress. She had a history of pulmonary embolism 30 months before the admission, a factor V Leiden mutation and several hospitalisations due to dermatomycoses. The patient briefly took phenprocoumon which was changed to 20 mg rivaroxaban due to a lack of adherence. Six months before admission, the patient paused the rivaroxaban therapy because of dental surgery and suffered a recurrent pulmonary embolism. Findings and Diagnosis The patient presented with increasing difficulty of breathing, morbid obesity with a BMI of 59.3 kg/m2 and intertrigo of the lower extremities. The ECG showed a right axis deviation, a pulmonary P-wave and an incomplete right bundle branch block. Computed tomography showed pulmonary embolisms of the left lower lobe. The pulmonary artery was dilated, and the right atrium was enlarged. Venous thrombosis of the lower limb could not be certainly ruled out. The D-dimer was elevated with 5.895 mg/L (normal value up to 169 mg/L) and NT-pro-BNP was elevated at 5.580 ng/L (normal value up to 0.5 ng/L). Sixteen hours after the onset of symptoms, 22 hours after the last dose, the serum rivaroxaban level was 137 ng/ml. According to manufacturers, the therapeutic range of rivaroxaban after 2 - 4 hours is 22 - 535 ng/ml, and after 24 hours 6 - 239 ng/ml. Therapy and course After initiation of a therapy with low-molecular weight heparin and subsequent oral anticoagulation with phenprocoumon, the symptoms decreased. Conclusions It is highly probable that the pulmonary embolism occurred at a time when the rivaroxaban level was in the therapeutic range. Since there are only few data about safety and efficacy of rivaroxaban and other non-vitamin K-oral anticoagulants (NOACs) in severely obese patients, the recommendations of the "International Society for Thrombosis and Haemostasis" should be followed: Rivaroxaban and other NOACs should not be used in patients with a BMI > 40 kg/m2 or weight > 120 kg, since only few data on this patient group are available. If NOACs are necessary in these patients, serum concentrations of NOACs should be measured. PMID- 29017217 TI - 5,4'-Dihydroxy-7,8-dimethoxyflavanone and Aliarin from Dodonaea viscosa Are Activators of PPARgamma. AB - PPARgamma agonists are widely used medications in diabetes mellitus therapy. Their role in improving adipose tissue function contributes to antidiabetic effects. The extracts of Dodonaea viscosa have been reported to exert antidiabetic activity. However, the effective mediators and the underlying mechanisms were largely unknown. In this study, we investigated the action on PPARgamma transactivation and adipocyte modulation of two typical flavonoid constituents from D. viscosa, 5,4'-dihydroxy-7,8-dimethoxyflavanone and aliarin. Our results showed that 5,4'-dihydroxy-7,8-dimethoxyflavanone and aliarin were potential partial PPARgamma agonists. The compounds induced adipogenesis in 3T3 L1 cells, with an upregulated adiponectin mRNA level and enhanced insulin sensitivity. The favorable effects of 5,4'-dihydroxy-7,8-dimethoxyflavanone, aliarin, and other flavonoid constituents on adipocytes might contribute to the antidiabetic efficacy of D. viscosa. PMID- 29017218 TI - Patient Factors Associated with Failure of Flap Coverage Used during Revision Total Knee Arthroplasty. AB - Revision total knee arthroplasty (rTKA) is a challenging problem in the setting of soft tissue defects. The purpose of this study was to evaluate patients who underwent rTKA requiring flap coverage and determine patient factors that predisposed them to failure. Forty-three consecutive patients (mean follow-up, 46.5 months) who underwent rTKA requiring flap coverage were retrospectively reviewed between January 1, 2000 and December 31, 2010. Sixteen of 43 patients experienced failure requiring either flap revision (n = 2) or above the knee amputation (n = 14). Patients with heart failure (p = 0.008), cancer (p = 0.049), or infection with Klebsiella pneumoniae (p = 0.002) had greater rates of failure. Smoking (p = 0.287), diabetes (p = 0.631), and flap type (p = 0.634, p = 0.801) were not associated with increased failure. Mean survival was 46.4 months. Survival of patients with a history of cancer (34.3 months) was less (p = 0.033) than those without (49.2 months). Flap coverage in rTKA is a viable limb salvage option for patients with soft tissue defects; however, failure rates are much higher than in patients not requiring flap coverage. PMID- 29017220 TI - [Bronchitis Plastica - Acute Dyspnea and Branching Airway Casts]. AB - : A 65 year old female presented to the emergency department with dyspnea and progressive cough with very viscous elongated secretion plugs. She suffered from multiple cardiac comorbidities and chronic heart failure. The CT scan of the thorax demonstrated extensive pulmonary infiltrates, unspecific mediastinal lymphadenopathy and enlargement of pulmonary lymph vessels. Bronchoscopy was performed and showed extensive occlusive bronchial casts. We diagnosed a case of bronchitis plastica. Therapy with inhalative heparin led to clinical improvement. CONCLUSION: bronchitis plastica is a rare disease with formation of occlusive bronchial casts. They are often found in cardiac disease or lymphatic disease. PMID- 29017222 TI - [Editor's Comment]. PMID- 29017223 TI - ? PMID- 29017221 TI - [Biologicals in the Treatment of Bronchial Asthma]. AB - Biologicals are a therapeutic option for patients with severe asthma. Difficult asthma in patients with untreated comorbidities or persistent trigger factors is much more common than severe refractory asthma. Optimized medical treatment, adherence to medication, elimination of trigger factors and treatment of comorbidities are essential before escalating the therapy with a biological. A careful phenotyping of patient with severe asthma is necessary because all available biological are only effective in certain phenotypes of the disease. For patients with severe allergic asthma an antibody against IgE (Omalizumab) is available. For patients with severe asthma and eosinophilic inflammation the Interleukin (IL)-5 Antibodies Mepolizumab and Reslizumab have recently been approved. The most prominent effect of biological treatment is the reduction of acute exacerbations in these patients. Further antibodies against IL-5 receptor (Benralizumab) or against the IL-4 receptor alpha chain (Dupilumab) are in advanced clinical development. PMID- 29017219 TI - [Consensus-Based Guidelines for Diagnosis, Prevention and Treatment of Tuberculosis in Children and Adolescents - A Guideline on Behalf of the German Society for Pediatric Infectious Diseases (DGPI)]. AB - Recently, epidemiological data shows an increase of childhood tuberculosis in Germany. In addition to this, drug resistant tuberculosis becomes more frequent. Therefore, diagnosis, prevention and therapy in childhood and adolescence remain a challenge. Adult guidelines do not work for children, as there are age specific differences in manifestation, risk of progression and diagnostic as well as therapeutic pathways.The German Society for Pediatric Infectious Diseases (DGPI) has initiated a consensus-based (S2k) process and completed a paediatric guideline in order to improve and standardize care for children and adolescents with tuberculosis exposure, infection or disease.Updated dosage recommendations take age dependant pharmacokinetics in the treatment of drug sensitive but also drug resistant tuberculosis in account. In addition to this, there is a detailed chapter on perinatal exposure and disease as well as extrapulmonary manifestations. PMID- 29017225 TI - ? PMID- 29017224 TI - ? PMID- 29017226 TI - ? PMID- 29017227 TI - ? PMID- 29017228 TI - ? PMID- 29017229 TI - [A new positioning maneuver for treating a subtype of postural unsteadiness - based on a modified model of the utricular macula]. AB - Objectives: A new method for the treatment of a subtype of postural unsteadiness frequently seen in the medical office is proposed. Ten years of successful practical application and continuous refining of this new treatment lead to the definition of symptom-criteria, which are useful to distinguish patients, who get benefit by this new procedure and to a modified model of the utricular macula. Materials and Methods: In a retrospective collection, the data of 15 patients with postural unsteadiness (mean duration of symptoms 61.7 months) successfully treated with the new maneuver are reported.Before treatment, all patients showed normal results in testing the caloric responses of the labyrinth, normal neurological investigation and no signs for cervical vertigo.Before and after treatment the DHI-score (Dizziness Handicap Index) was achieved by using the German version of the DHI-questionnaire. In all groups before and after treatment balance testing was performed using a posturography platform. Results: Application of the new treatment lead to a significant improvement of the DHI scores and of the posturographic results (significant reduction of body sway). Discussion: The patients, who were successfully treated by the new maneuver have had presented the same symptoms like patients with a proven utricular dysfunction. This leads to a slightly modified model of the utricular macula. Beyond correctly positioned otoconia in the utricular macula and free otoconia in the endolymphatic utricular space, a third fraction of dysfunctional partially detached otoconia is postulated (causing the unsteadiness). Based on this theory, the single hair-cell with its accompanied otoconium might be the smallest receptor-unit of the macula-organ. This smallest receptor-unit might represent a biological mass-spring-system. According to technical mass-spring-systems used as accelerometers, the different sizes of the otoconia for a distinct direction of acceleration are necessary for covering different frequency-bands.Finally, a many years successfully tested modified variation of the new maneuver for treatment in the medical office and for self-treatment is proposed. PMID- 29017230 TI - [Guidelines in Practice: The New S3 Guideline "Sleeping Disorders - Sleep-Related Abnormal Breathing"]. AB - Sleep related breathing disorders include central sleep apnea (CSA), obstructive sleep apnea (OSA), sleep-related hypoventilation, and sleep-related hypoxia. These disorders are frequent and growing in clinical relevance. The related chapter of the S3 guideline "Non-restorative sleep/Sleep disorders", published by the German Sleep Society (DGSM), has recently been updated in November 2016. Epidemiology, diagnostics, therapeutic procedures, and classification of sleep related disorders have been revised. Concerning epidemiology, a considerably higher mortality rate among pregnant women with OSA has been emphasized. With regards to diagnostics, the authors point out that respiratory polygraphy may be sufficient in diagnosing OSA, if a typical clinical condition is given. For CSA, recommendations were changed to diagnose CSA with low apnea rates present. Significant changes for treating CSA in patients with left ventricular dysfunction have been introduced. In addition, there is now to be differentiated between sleep-related hypoventilation and sleep-related hypoxaemia. Obesity hypoventilation syndrome is discussed in more detail. This article sums up and comments on the published changes. PMID- 29017231 TI - [Long-term Follow up and patient satisfaction after tympanoplasty with Titanium Clip-Prothesis]. AB - Aim of the present study is to evaluate the long term results of ossiculoplasty using titanium clip prosthesis. A retrospective analysis with prospective follow up has been done including for all patients who had a Clip-PORP implanted between the years 2002-2013. Following this, audiometric hearing results were measured with clinical examination including otoscopy and quality of life evaluation using Glasgow benefit inventory. 48 patients (51 ears, 29 men, 19 women, average age 44.1 years) received followed up after an average duration of 6.3 years. The overall air-bone-gap (0.5-4 kHz) decreased from 22.8 dB preoperatively to 14.6 dB postoperatively (p<=0.001). The most frequent indication for surgical treatment were cholesteatomas and recurrent cholesteatomas (52%), chronic inflammation of middle ear (12%), revision of radical mastoidectomy (8%) and disturbance in sound conduction after previous operation (14%). Tympanic membrane was closed in 47 times (92,2%), 4 times (7,8%) there was a defect. Clip-PORP was in situ 39 times (75%), protrusion and disposal were detected 6 times (11,8%) and 2 times (4%), respectively. However, 1 time (2%) the prothesis was lost or evaluation was not possible (3 times, 5,9%). The overall patient satisfaction and general subscale score after the treatment was beneficially evaluated. There was no change in social support score nore the physical health score. In summary, the ossicular chain reconstruction using titan Clip-PORP is safe and well established. Also in long-term analysis stable hearing results due to reduction of air bone gap are represented. The subjective quality of life is sustainable improved. PMID- 29017232 TI - ? PMID- 29017233 TI - [Not Available]. PMID- 29017234 TI - ? PMID- 29017235 TI - ? PMID- 29017236 TI - Host Innate Immunity against Hepatitis E Virus and Viral Evasion Mechanisms. AB - Hepatitis E virus (HEV) infections cause epidemic or sporadic acute hepatitis, which are mostly self-limiting. However, viral infection in immunocompromised patients and pregnant women may result in serious consequences, such as chronic hepatitis and liver damage, mortality of the latter of which reaches up to 20 30%. Type I interferon (IFN)-induced antiviral immunity is known to be the first line defense against virus infection. Upon HEV infection in the cell, the virus genome is recognized by pathogen recognition receptors, leading to rapid activation of intracellular signaling cascades. Expression of type I IFN triggers induction of a barrage of IFN-stimulated genes, helping the cells cope with viral infection. Interestingly, some of the HEV-encoded genes seem to be involved in disrupting signaling cascades for antiviral immune responses, and thus crippling cytokine/chemokine production. Antagonistic mechanisms of type I IFN responses by HEV have only recently begun to emerge, and in this review, we summarize known HEV evasion strategies and compare them with those of other hepatitis viruses. PMID- 29017237 TI - Biochemical Characterization of a Psychrophilic Phytase from an Artificially Cultivable Morel Morchella importuna. AB - Psychrophilic phytases suitable for aquaculture are rare. In this study, a phytase of the histidine acid phosphatase (HAP) family was identified in Morchella importuna, a psychrophilic mushroom. The phytase showed 38% identity with Aspergillus niger PhyB, which was the closest hit. The M. importuna phytase was overexpressed in Pichia pastoris, purified, and characterized. The phytase had an optimum temperature at 25 degrees C, which is the lowest among all the known phytases to our best knowledge. The optimum pH (6.5) is higher than most of the known HAP phytases, which is fit for the weak acidic condition in fish gut. At the optimum pH and temperature, MiPhyA showed the maximum activity level (2,384.6 +/- 90.4 MUmol.min-1.mg-1, suggesting that the enzyme possesses a higher activity level over many known phytases at low temperatures. The phytate degrading efficacy was tested on three common feed materials (soybean meal/rapeseed meal/corn meal) and was compared with the well-known phytases of Escherichia coli and A. niger. When using the same amount of activity units, MiPhyA could yield at least 3* more inorganic phosphate than the two reference phytases. When using the same weight of protein, MiPhyA could yield at least 5* more inorganic phosphate than the other two. Since it could degrade phytate in feed materials efficiently under low temperature and weak acidic conditions, which are common for aquacultural application, MiPhyA might be a promising candidate as a feed additive enzyme. PMID- 29017238 TI - Correlation between Changes in Microbial/Physicochemical Properties and Persistence of Human Norovirus during Cabbage Kimchi Fermentation. AB - Recently, cabbage kimchi has occasionally been associated with the foodborne diseases of enteric viruses such as human norovirus (HuNoV). This study aimed to evaluate the correlation between microbial/physicochemical properties and persistence of HuNoV in experimentally contaminated cabbage kimchi fermented and stored at 4 degrees C or 10 degrees C for 28 days. Changes in organic acid content, lactic acid bacteria (LAB), acidity, pH, and salinity were analyzed. The recovery of structurally intact HuNoV was examined for up to 28 days post inoculation, using a NoV GII.4 monoclonal antibody-conjugated immuno-magnetic separation method combined with quantitative real-time reverse transcription polymerase chain reaction. On day 0, LAB loads were 4.70 log10 colony forming units/g and HuNoV GII.4 titers were 2.57 log10 genomic copies/MUl, at both temperatures. After 28 days, intact HuNoV titers decreased to 1.58 (4 degrees C) and 1.04 (10 degrees C) log10 genomic copies/MUl, whereas the LAB density increased. This correlated with a gradual increase in lactic acid and acetic acid at both temperatures. Our findings support a statistical correlation between changes in physicochemical properties and the recovery of structurally intact HuNoV GII.4. Moreover, we determined that the production of organic acid and low pH could affect HuNoV GII.4 titers in cabbage kimchi during fermentation. However, HuNoV GII.4 was not completely eliminated by microbial/physicochemical factors during fermentation, although HuNoV GII.4 was reduced. Based on this, we speculate that the persistence of HuNoV GII.4 may be affected by the continually changing conditions during kimchi fermentation. PMID- 29017239 TI - Introduction to Special Section: Pediatric Psychology and Child Unintentional Injury Prevention: Current State and Future Directions for the Field. PMID- 29017240 TI - Pull Incentives for Antibacterial Drug Development: An Analysis by the Transatlantic Task Force on Antimicrobial Resistance. AB - New alternative market models are needed to incentivize companies to invest in developing new antibacterial drugs. In a previous publication, the Transatlantic Task Force on Antimicrobial Resistance (TATFAR) summarized the key areas of consensus for economic incentives for antibacterial drug development. That work determined that there was substantial agreement on the need for a mixture of push and pull incentives and particularly those that served to delink the revenues from the volumes sold. Pull incentives reward successful development by increasing or ensuring future revenue. Several pull incentives have been proposed that could substantially reward the development of new antibacterial drugs. In this second article authored by representatives of TATFAR, we examine the advantages and disadvantages of different pull incentives for antibacterial drug development. It is TATFAR's hope that this analysis, combined with other related analyses, will provide actionable information that will shape policy makers' thinking on this important issue. PMID- 29017241 TI - Vancomycin Minimum Inhibitory Concentration Is Not a Substitute for Clinical Judgment: Response to Healthcare-Associated Ventriculitis and Meningitis. PMID- 29017242 TI - High-Dose Daptomycin and Mortality: The Case Is Not Yet Closed. PMID- 29017243 TI - Reply to Chanderraj et al. PMID- 29017244 TI - Plasma Indoleamine 2, 3-Dioxygenase, a Biomarker for Tuberculosis in Human Immunodeficiency Virus-Infected Patients. AB - Background: There is no biomarker for diagnosing active tuberculosis in patients with human immunodeficiency virus (HIV) infection. Indoleamine 2, 3-dioxygenase (IDO) is an immunoregulatory enzyme that breaks down tryptophan (Trp) to metabolites known as kynurenines (Kyns). We investigated whether IDO activity, as measured by the ratio of Kyn to Trp, could be used to diagnose or predict active tuberculosis disease in HIV-infected adults. Methods: Kyn and Trp concentrations were measured using ultraperformance liquid chromatography mass spectrometry in plasma samples from 32 HIV-infected patients in whom active tuberculosis developed and who were followed up prospectively. We compared to 70 HIV-infected control subjects from the same cohort in whom tuberculosis did not develop, matched by age, sex, and CD4 cell count, and 37 unmatched HIV-infected patients with a diagnosis of pneumonia. Clinical parameters, including body mass index, CD4 cell count, HIV load, and C-reactive protein levels were analyzed. Results: At the time of tuberculosis diagnosis, IDO activity was significantly higher in patients with tuberculosis than in controls (P < .001). Six months before tuberculosis diagnosis, IDO activity was significantly higher in all patients who later developed tuberculosis (P < .001) than controls. After 6 months of tuberculosis treatment, IDO activity in patients with tuberculosis declined to levels similar to those in controls. IDO activity was 4-fold higher in patients with tuberculosis than in those with pneumonia, and could be used to distinguish them. With a receiver operating characteristic curve, IDO activity had a sensitivity of 97%, a specificity of 99%, and positive and negative predictive values of 89% and 100% for detecting active tuberculosis disease. Conclusion: Plasma IDO activity is suitable as a biomarker of active tuberculosis in HIV positive patients. PMID- 29017245 TI - A Community Perspective on the Inclusion of Pregnant Women in Tuberculosis Drug Trials. AB - Affecting both mother and the existing pregnancy, tuberculosis (TB) increases the likelihood of poor birth outcomes. Despite substantial clinical need for TB prevention and treatment, pregnant women remain neglected by research initiatives. As members of 3 community advisory boards that provide input into TB drug trials, we offer a community perspective on the inclusion of pregnant women in TB drug research and discuss (1) our perspective on the risk/benefit tradeoff of including pregnant women in research to address different forms of TB; (2) recent examples of progress in this area; (3) lessons learned from the human immunodeficiency virus research field, where pregnant women have enjoyed better although imperfect-representation in research; and (4) recommendations for different stakeholders, including researchers, regulatory authorities, ethics committees, and policymakers. PMID- 29017246 TI - Viral Load and Cytokine Response Profile Does Not Support Antibody-Dependent Enhancement in Dengue-Primed Zika Virus-Infected Patients. AB - Background: The pathogenesis of severe dengue disease involves immune components as biomarkers. The mechanism by which some dengue virus (DENV)-infected individuals progress to severe disease is poorly understood. Most studies on the pathogenesis of severe dengue disease focus on the process of antibody-dependent enhancement (ADE) as a primary risk factor. With the circulation of Zika virus (ZIKV) in DENV-endemic areas, many people infected by ZIKV were likely exposed to DENV. The influence of such exposure on Zika disease outcomes remains unknown. Methods: We investigated whether patients previously exposed to DENV exhibited higher viremia when exposed to a subsequent, heterologous dengue or Zika infection than those patients not previously exposed to dengue. We measured viral loads and cytokine profile during patients' acute infections. Results: Neither dengue nor Zika viremia was higher in patients with prior DENV infection, although the power to detect such a difference was only adequate in the ZIKV analysis. Of the 10 cytokines measured, only 1 significant difference was detected: Levels of interleukin 1beta (IL-1beta) were lower in dengue-infected patients who had experienced a previous dengue infection than patients infected with dengue for the first time. However, power to detect differences between groups was low. In Zika-infected patients, levels of IL-1beta showed a significant, positive correlation with viral load. Conclusions: No signs of ADE were observed in vivo in patients with acute ZIKV infection who had prior exposure to DENV. PMID- 29017247 TI - A 17-Year Nationwide Study of Burkholderia cepacia Complex Bloodstream Infections Among Patients in the United States Veterans Health Administration. AB - Background: Burkholderia cepacia complex (Bcc) are a group of multidrug-resistant gram-negative bacteria rarely reported in patients without cystic fibrosis (CF) or immunocompromising conditions. We investigated Bcc bloodstream infections (BSIs) in a cohort of non-CF patients from the US Veterans Health Administration (VHA). Methods: Using VHA databases, we identified patients with Bcc BSI at facilities nationwide from 1999 through 2015. We ascertained clinical characteristics, treatments, and outcomes and identified factors associated with 30-day mortality in logistic regression analysis. Results: We identified 248 patients with Bcc BSI, who were of advanced age (mean, 68 years), chronically ill, and had severe disease. The most common sources were central venous catheters (41%) and pneumonia (20%). Most cases were hospital-acquired (155 [62%]) or healthcare-associated (70 [28%]). Mortality at 14, 30, and 90 days was 16%, 25%, and 36%, respectively. Trimethoprim-sulfamethoxazole (TMP-SMX) and fluoroquinolones were active against 94% and 88% of isolates, respectively. Susceptibility to ceftazidime and meropenem occurred in approximately 70% of the isolates. The most prescribed antibiotics were fluoroquinolones (35%), followed by carbapenems (20%), TMP-SMX (18.5%), and ceftazidime (11%). In regression analysis, age (OR, 1.06 [95% confidence interval {CI}, 1.02-1.10], per added year) and the Pitt bacteremia score (OR, 1.65 [95% CI, 1.44-1.94], per unit increase) were associated with higher 30-day mortality. Conclusions: In this large cohort of BSIs caused by Bcc, cases were mostly hospital-acquired and we observed high mortality, significant resistance to ceftazidime, and limited use of TMP-SMX. These observations add to our understanding of Bcc infection in non CF patients and highlight the need for interventions to improve their outcome. PMID- 29017248 TI - Fluoroquinolone Resistance Mutation Detection Is Equivalent to Culture-Based Drug Sensitivity Testing for Predicting Multidrug-Resistant Tuberculosis Treatment Outcome: A Retrospective Cohort Study. AB - Background: Molecular diagnostics that rapidly and accurately predict fluoroquinolone (FQ) resistance promise to improve treatment outcomes for individuals with multidrug-resistant (MDR) tuberculosis (TB). Mutations in the gyr genes, though, can cause variable levels of in vitro FQ resistance, and some in vitro resistance remains unexplained by gyr mutations alone, but the implications of these discrepancies for treatment outcome are unknown. Methods: We performed a retrospective cohort study of 172 subjects with MDR/extensively drug-resistant TB subjects and sequenced the full gyrA and gyrB open reading frames in their respective sputum TB isolates. The gyr mutations were classified into 2 categories: a set of mutations that encode high-level FQ resistance and a second set that encodes intermediate resistance levels. We constructed a Cox proportional model to assess the effect of the gyr mutation type on the time to death or treatment failure and compared this with in vitro FQ resistance, controlling for host and treatment factors. Results: Controlling for other host and treatment factors and compared with patients with isolates without gyr resistance mutations, "high-level" gyr mutations significantly predict poor treatment outcomes with a hazard ratio of 2.6 (1.2-5.6). We observed a hazard of death and treatment failure with "intermediate-level" gyr mutations of 1.3 (0.6 3.1), which did not reach statistical significance. The gyr mutations were not different than culture-based FQ drug susceptibility testing in predicting the hazard of death or treatment failure and may be superior. Conclusions: FQ molecular-based diagnostic tests may better predict treatment response than traditional drug susceptibility testing and open avenues for personalizing TB therapy. PMID- 29017251 TI - Cumulative Incidence and Incidence Rate Ratio for Estimation of Risk of Tuberculosis in Patients With Cancer. PMID- 29017250 TI - Reply to Dobler. PMID- 29017252 TI - Erratum. PMID- 29017249 TI - Characterization of Aerosols Generated During Patient Care Activities. AB - Background: Questions remain about the degree to which aerosols are generated during routine patient care activities and whether such aerosols could transmit viable pathogens to healthcare personnel (HCP). The objective of this study was to measure aerosol production during multiple patient care activities and to examine the samples for bacterial pathogens. Methods: Five aerosol characterization instruments were used to measure aerosols during 7 patient care activities: patient bathing, changing bed linens, pouring and flushing liquid waste, bronchoscopy, noninvasive ventilation, and nebulized medication administration (NMA). Each procedure was sampled 5 times. An SKC BioSampler was used for pathogen recovery. Bacterial cultures were performed on the sampling solution. Patients on contact precautions for drug-resistant organisms were selected for most activity sampling. Any patient undergoing bronchoscopy was eligible. Results: Of 35 sampling episodes, only 2 procedures showed a significant increase in particle concentrations over baseline: NMA and bronchoscopy with NMA. Bronchoscopy without NMA and noninvasive ventilation did not generate significant aerosols. Of 78 cultures from the impinger samples, 6 of 28 baseline samples (21.4%) and 14 of 50 procedure samples (28.0%) were positive. Conclusions: In this study, significant aerosol generation was only observed during NMA, both alone and during bronchoscopy. Minimal viable bacteria were recovered, mostly common environmental organisms. Although more research is needed, these data suggest that some of the procedures considered to be aerosol generating may pose little infection risk to HCP. PMID- 29017254 TI - Keeping Up With a World in Motion: Screening Strategies for Migrating Populations. PMID- 29017253 TI - Rapid Clearance and Frequent Reinfection With Enteric Pathogens Among Children With Acute Diarrhea in Zanzibar. AB - Background: Acute infectious gastroenteritis is an important cause of illness and death among children in low-income countries. In addition to rotavirus vaccination, actions to improve nutrition status, sanitation, and water quality are important to reduce enteric infections, which are frequent also among asymptomatic children. The aim of this study was to investigate if the high prevalence of these infections reflects that they often are not cleared properly by the immune response or rather is due to frequent pathogen exposure. Methods: Rectal swabs were collected at time of acute diarrhea and 14 days later from 127 children, aged 2-59 months and living in rural Zanzibar, and were analyzed by real-time polymerase chain reaction targeting multiple pathogens. Results: At baseline, detection rates >20% were found for each of enterotoxigenic Escherichia coli, Shigella, Campylobacter, Cryptosporidium, norovirus GII, and adenovirus. At follow-up, a large proportion of the infections had become cleared (34-100%), or the pathogen load reduced, and this was observed also for agents that were presumably unrelated to diarrhea. Still, the detection frequencies at follow-up were for most agents as high as at baseline, because new infections had been acquired. Neither clearance nor reinfection was associated with moderate malnutrition, which was present in 21% of the children. Conclusions: Children residing in poor socioeconomic conditions, as in Zanzibar, are heavily exposed to enteric pathogens, but capable of rapidly clearing causative and coinfecting pathogens. PMID- 29017256 TI - Erratum. PMID- 29017255 TI - Systematic Tuberculosis Screening in Asylum Seekers in Italy. AB - The preliminary findings of a tuberculosis (TB) screening of asylum seekers performed in a reception center located in northern Italy reveal a post-entry screening prevalence rate of 535 per 100000 individuals screened. This result shows that systematic use of chest radiography is a useful tool for active TB screening among asylum seekers in Italy. PMID- 29017257 TI - Erratum. PMID- 29017258 TI - A 63-Year-Old Korean Woman With Abnormal Magnetic Resonance Imaging Results. PMID- 29017259 TI - A 63-Year-Old Korean Woman With Abnormal Magnetic Resonance Imaging Results. PMID- 29017260 TI - Waterpipe Use in the Middle East and North Africa: Data From the Breathe Study. AB - Introduction: In recent decades, waterpipe use has gained popularity, notably in the Middle East and North Africa (MENA) region. This study describes waterpipe use and characteristics of waterpipe users among the general population of the MENA region. Methods: This study was a sub-analysis of the BREATHE study, a cross sectional survey of chronic obstructive respiratory disease conducted in the general population of 11 countries of the MENA region. The study population consisted of subjects aged >=40 years who completed the screening questionnaire and who reported waterpipe use (alone or with cigarettes). This questionnaire collected data on demographics, self-reported respiratory symptoms (breathlessness and productive cough), smoking habits (cigarettes or waterpipe) and diagnosis of chronic obstructive respiratory disease, chronic bronchitis or emphysema. Results: Of the 62 086 subjects screened in the BREATHE study, waterpipe use was reported by 2173 subjects (3.5% [95% CI: 3.4%-3.6%]), of whom 934 subjects (43.0%) smoked both waterpipes and cigarettes. The majority of waterpipe users were men (82%) and aged from 40 to 49 years (53.7%). Over 90% of users smoked their waterpipe for >=1 hour per day. Waterpipe use was associated with an increased risk of productive cough (odds ratio [OR]: 1.49), breathlessness (OR: 1.33), and chronic bronchitis (OR: 1.43), independently of the risk associated with cigarette smoking. In subjects using waterpipe alone (N = 1239), breathlessness was the most frequently self-reported symptom (11.3%), followed by productive cough (6.0%) and chronic bronchitis (2.2%). Conclusions: Waterpipe smoking in the region is widespread and is associated with an increased risk of respiratory pathology independently of cigarette smoking. Implications: This large general population study reports an elevated risk of respiratory disease associated with waterpipe use independently of cigarette smoking; this finding emphasizes the need for public health policies to curtail the growing spread of waterpipe use by young people in the MENA region. PMID- 29017261 TI - The Evolving Tobacco Product and Tobacco Control Policy Landscapes: Understanding Complex and Interactive Effects to Avoid Leaving Vulnerable Populations Behind. PMID- 29017263 TI - Progress in the Fight Against Multidrug-Resistant Bacteria 2005-2016: Modern Noninferiority Trial Designs Enable Antibiotic Development in Advance of Epidemic Bacterial Resistance. AB - From a public health perspective, new antibacterial agents should be evaluated and approved for use before widespread resistance to existing agents emerges. However, for multidrug-resistant pathogens, demonstration of superior efficacy of a new agent over a current standard-of-care agent is routinely feasible only when epidemic spread of these dangerous organisms has already occurred. One solution to enable proactive drug development is to evaluate new antibiotics with improved in vitro activity against MDR pathogens using recently updated guidelines for active control, noninferiority trials of selected severe infections caused by more susceptible pathogens. Such trials are feasible because they enroll patients with infections due to pathogens with a "usual drug resistance" phenotype that will be responsive to widely registered standard-of-care comparator antibiotics. Such anticipatory drug development has constructively reshaped the antibiotic pipeline and offers the best chance of making safe and efficacious antibiotics available to the public ahead of epidemic resistance. PMID- 29017264 TI - Application of "Precision Medicine" Through the Molecular Characterization of Extensively Drug-Resistant Klebsiella pneumoniae in a Multivisceral Transplant Patient. PMID- 29017266 TI - Reply to Macesic et al. PMID- 29017267 TI - Colistin Resistance in Carbapenem-Resistant Klebsiella pneumoniae: De Novo or Drug Exposure? PMID- 29017262 TI - Ceftolozane-Tazobactam for the Treatment of Multidrug-Resistant Pseudomonas aeruginosa Infections: Clinical Effectiveness and Evolution of Resistance. AB - Background: Data on the use of ceftolozane-tazobactam and emergence of ceftolozane-tazobactam resistance during multidrug resistant (MDR)-Pseudomonas aeruginosa infections are limited. Methods: We performed a retrospective study of 21 patients treated with ceftolozane-tazobactam for MDR-P. aeruginosa infections. Whole genome sequencing and quantitative real-time polymerase chain reaction were performed on longitudinal isolates. Results: Median age was 58 years; 9 patients (43%) were transplant recipients. Median simplified acute physiology score-II (SAPS-II) was 26. Eighteen (86%) patients were treated for respiratory tract infections; others were treated for bloodstream, complicated intraabdominal infections, or complicated urinary tract infections. Ceftolozane-tazobactam was discontinued in 1 patient (rash). Thirty-day all-cause and attributable mortality rates were 10% (2/21) and 5% (1/21), respectively; corresponding 90-day mortality rates were 48% (10/21) and 19% (4/21). The ceftolozane-tazobactam failure rate was 29% (6/21). SAPS-II score was the sole predictor of failure. Ceftolozane tazobactam resistance emerged in 3 (14%) patients. Resistance was associated with de novo mutations, rather than acquisition of resistant nosocomial isolates. ampC overexpression and mutations were identified as potential resistance determinants. Conclusions: In this small study, ceftolozane-tazobactam was successful in treating 71% of patients with MDR-P. aeruginosa infections, most of whom had pneumonia. The emergence of ceftolozane-tazobactam resistance in 3 patients is worrisome and may be mediated in part by AmpC-related mechanisms. More research on treatment responses and resistance during various types of MDR P. aeruginosa infections is needed to define ceftolozane-tazobactam's place in the armamentarium. PMID- 29017265 TI - Antibiotic Overconsumption in Pregnant Women With Urinary Tract Symptoms in Uganda. AB - Background: Urinary tract infections (UTIs) are one of the most common bacterial infections in women. During pregnancy physiological changes, like frequency, mimic UTI symptoms, and therefore bacteriological cultures are needed to confirm the diagnosis. However, in developing countries antibiotic therapy is commonly initiated without culture confirmation. Methods: We investigated the prevalence of bacteriuria among pregnant women with and without UTI symptoms in Uganda. In total 2 562 urine samples were evaluated with nitrite and leukocyte esterase tests, using urine culture and/or dipslide with species identification as reference. Results: The prevalence of culture-proven UTI among pregnant women with UTI symptoms was 4%. Since treatment is initiated based only on the presence of symptoms, 96% were erroneously given antibiotics. Further, there is a high prevalence of resistance to commonly used antibiotics, with 18 % ESBL and 36 % multidrug resistant Escherichia coli strains. Nitrite, leukocyte esterase tests, and urine microscopy alone were of poor diagnostic value. Using dipslide, gynecologists and nurses, not trained in microbiology, were mostly able to identify E. coli and negative cultures. Mixed Gram-negative flora, suggesting fecal contamination was, however, in the majority of cases interpreted as a single pathogenic bacterium and would have resulted in antibiotic treatment. Conclusions: To prevent excessive use of antibiotics, dipslide possibly supported by a combination of nitrite and leukocyte esterase tests can be used. Trained frontline health care professionals correctly diagnosed E. coli UTI and negative urine cultures, which would help preventing antibiotic misuse. In addition, regular screening for antibiotic resistance would improve correct treatment. PMID- 29017268 TI - The Spectrum and Burden of Influenza-Associated Neurological Disease in Children: Combined Encephalitis and Influenza Sentinel Site Surveillance From Australia, 2013-2015. AB - Background: There are few longitudinal studies of seasonal influenza-associated neurological disease (IAND) and none from the Southern Hemisphere. Methods: We extracted prospectively acquired Australian surveillance data from 2 studies nested within the Paediatric Active Enhanced Disease Surveillance (PAEDS) network: the Influenza Complications Alert Network (FluCAN) study and the Australian Childhood Encephalitis (ACE) study between 2013 and 2015. We described the clinical features and severity of IAND in children, including influenza associated encephalitis/encephalopathy (IAE). We calculated the proportion of hospitalized influenza that is associated with IAND and IAE, and incidence of IAE. Results: Over 3 influenza seasons, we identified 54 cases of IAND at 2 tertiary children's hospitals from Australia that accounted for 7.6% of hospitalized influenza. These included 10 cases of IAE (1.4% hospitalized influenza). The mean annual incidence of IAE among Australian children (aged <=14 years) was 2.8 per 1000000. The spectrum of IAND was broad and included IAE (n = 10) including distinct acute encephalopathy syndromes, simple febrile seizures (n = 14), other seizures (n = 16), acute ataxia (n = 4), and other subacute syndromes (transverse myelitis [n = 1], opsoclonus myoclonus [n = 1]). Two-thirds of children with IAND were aged <=4 years; less than half had preexisting neurological disease or other risk factors for severe influenza. IAE caused death or neurological morbidity in half of cases. Conclusions: Seasonal influenza is an important cause of acute neurological disease in Australian children. The spectrum of seasonal IAND appears similar to that described during the 2009 H1N1 pandemic. IAE is associated with high morbidity and mortality. PMID- 29017270 TI - Erratum. PMID- 29017271 TI - Erratum. PMID- 29017272 TI - Erratum. PMID- 29017273 TI - Erratum. PMID- 29017274 TI - Erratum. PMID- 29017275 TI - The Response of the Peer Review System to the Ebola and Zika Virus Epidemic. PMID- 29017276 TI - Reply to Cobussen et al. PMID- 29017269 TI - Cancer-Attributable Mortality Among People With Treated Human Immunodeficiency Virus Infection in North America. AB - Background: Cancer remains an important cause of morbidity and mortality in people with human immunodeficiency virus (PWHIV) on effective antiretroviral therapy (ART). Estimates of cancer-attributable mortality can inform public health efforts. Methods: We evaluated 46956 PWHIV receiving ART in North American HIV cohorts (1995-2009). Using information on incident cancers and deaths, we calculated population-attributable fractions (PAFs), estimating the proportion of deaths due to cancer. Calculations were based on proportional hazards models adjusted for age, sex, race, HIV risk group, calendar year, cohort, CD4 count, and viral load. Results: There were 1997 incident cancers and 8956 deaths during 267145 person-years of follow-up, and 11.9% of decedents had a prior cancer. An estimated 9.8% of deaths were attributable to cancer (cancer-attributable mortality rate 327 per 100000 person-years). PAFs were 2.6% for AIDS-defining cancers (ADCs, including non-Hodgkin lymphoma, 2.0% of deaths) and 7.1% for non AIDS-defining cancers (NADCs: lung cancer, 2.3%; liver cancer, 0.9%). PAFs for NADCs were higher in males and increased strongly with age, reaching 12.5% in PWHIV aged 55+ years. Mortality rates attributable to ADCs and NADCs were highest for PWHIV with CD4 counts <100 cells/mm3. PAFs for NADCs increased during 1995 2009, reaching 10.1% in 2006-2009. Conclusions: Approximately 10% of deaths in PWHIV prescribed ART during 1995-2009 were attributable to cancer, but this fraction increased over time. A large proportion of cancer-attributable deaths were associated with non-Hodgkin lymphoma, lung cancer, and liver cancer. Deaths due to NADCs will likely grow in importance as AIDS mortality declines and PWHIV age. PMID- 29017277 TI - Short Course of Empirical Gentamicin in Patients With Severe Sepsis and Septic Shock in the ICU: A Benefit or a Burden? PMID- 29017281 TI - Erratum. PMID- 29017279 TI - Population-Level Herd Protection of Males From a Female Human Papillomavirus Vaccination Program: Evidence from Australian Serosurveillance. AB - Background: Australia instituted funded female human papillomavirus (HPV) immunization in 2007, followed by a targeted male vaccination program in 2013. To date, Australia is one of only several countries with a funded male HPV immunization program. In 2012-2013, we conducted a survey of HPV seroprevalence in males to assess whether or not a herd impact of female vaccination could be observed. Methods: We conducted a cross-sectional study of de-identified residual diagnostic test serum samples from males aged 15-39 years from laboratories in 3 Australian states and calculated the proportion seropositive to HPV types 6, 11, 16, and 18. We compared type-specific results by age group against those from a baseline 2005 Australian HPV serosurvey. Results: There were decreases in proportion seropositive for every HPV type across all age groups, many statistically significant. The largest decrease was observed for HPV-11, with decreases of 8- and 9-fold for ages 20-29 and 30-39 years, respectively. Despite substantial reductions in seroprevalence, at least 9% of males were seropositive for at least 1 of the 4 HPV types. Conclusions: This is the first serosurvey confirming broad population-level impact in males from female HPV vaccination. Our research may assist policy makers considering implementing HPV vaccination programs. PMID- 29017280 TI - Immunogenicity of the 13-Valent Pneumococcal Conjugate Vaccine in Older Adults With and Without Comorbidities in the Community-Acquired Pneumonia Immunization Trial in Adults (CAPiTA). AB - Background: In the randomized controlled Community-Acquired Pneumonia Immunization Trial in Adults (CAPiTA), the efficacy of the 13-valent pneumococcal conjugate vaccine (PCV13) against first episodes of vaccine-type community acquired pneumonia in adults aged >=65 years was 46%. The long-term immunogenicity of PCV13 in pneumococcal vaccine-naive older adults was investigated as part of CAPiTA. Methods: We determined the immune responses to PCV13 before and at 1, 12, and 24 months after vaccination in 1006 PCV13 recipients and 1005 controls with 3 age-stratified study participant cohorts. PCV13 serotype-specific opsonophagocytic activity (OPA) titers and immunoglobulin G (IgG) concentrations were determined. Results: Sample collection completeness was at least 93.4% at each time point. In all 3 age categories, a single dose of PCV13 elicited OPA titers and IgG concentrations for all 13 serotypes that were significantly higher than baseline and the corresponding responses in the placebo group at all time points. In the eldest subjects (>=80 years of age at vaccination), OPA titers and IgG concentrations remained above baseline and there was no apparent difference in OPA titers and IgG concentrations between those with self-reported comorbidities and healthy older adults. However, the study was not powered to determine statistical significance between different age and comorbidity groups, and thus these results are exploratory. Conclusions: In immunocompetent adults >=65 years of age, PCV13 elicits significant increases in OPA titers and IgG concentrations that persist 2 years postvaccination for all 13 serotypes, regardless of age and comorbidity. Clinical Trials Registration: NCT00744263. PMID- 29017278 TI - Favipiravir and Ribavirin Treatment of Epidemiologically Linked Cases of Lassa Fever. AB - Two patients with Lassa fever are described who are the first human cases treated with a combination of ribavirin and favipiravir. Both patients survived but developed transaminitis and had prolonged detectable virus RNA in blood and semen, suggesting that the possibility of sexual transmission of Lassa virus should be considered. PMID- 29017282 TI - Plasma Cytokine Predictors of Tuberculosis Recurrence in Antiretroviral-Treated Human Immunodeficiency Virus-infected Individuals from Durban, South Africa. AB - Background: Immune correlates of tuberculosis (TB) risk in populations infected with human immunodeficiency virus (HIV) remain understudied, despite HIV being associated with a high burden of TB disease. Here we describe plasma cytokine correlates of TB recurrence in a well-characterized cohort of HIV-infected individuals on antiretroviral therapy (ART) with a history of prior TB cure. Methods: Study participants were drawn from a prospective cohort study initiated at the conclusion of a randomized clinical trial in which individuals presented with untreated HIV infection and active pulmonary TB. At baseline, ART was initiated, and TB successfully cured. Participants were screened for TB recurrence quarterly for up to 4 years. TB recurrent cases (n = 63) were matched to controls (n = 123) on sex, study arm assignment in the original trial, and month of enrollment with a subset of cases sampled longitudinally at several time points. Results: Three cytokines were associated with increased rates of TB recurrence in univariate models: interleukin 6 (IL6) (odds ratio [OR] 2.66, 95% confidence interval [CI] 1.34-5.28, P = .005), IP10 (OR 4.62, 95% CI 1.69-12.65, P = .003), monokine induced by IFN-gamma (MIG) (OR 3.11, 95% CI 1.10-8.82, P = .034). Conversely, interferon beta (IFNbeta) was associated with decreased TB risk (OR 0.34, 95% CI 0.13-0.87, P = .025). Following multivariate analyses adjusting for covariates IL6, interleukin 1beta (IL1beta), and interleukin 1Ralpha (IL1Ralpha) were associated with increased risk and IFNbeta with decreased TB risk. Longitudinal analysis showed that levels of many TB-associated markers, including IL6, IP10, sCD14, and interferon gamma (IFNgamma) are reduced following TB treatment. Conclusion: These data show that TB recurrence, in HIV infected individuals on ART is predicted by biomarkers of systemic inflammation, many of which are implicated in more rapid HIV disease progression. Clinical Trials Registration: NCT 01539005. PMID- 29017285 TI - Reply to Corona and Cattaneo. PMID- 29017284 TI - Incidence of Norovirus-Associated Diarrhea and Vomiting Disease Among Children and Adults in a Community Cohort in the Peruvian Amazon Basin. AB - Background: Data on norovirus epidemiology among all ages in community settings are scarce, especially from tropical settings. Methods: We implemented active surveillance in 297 households in Peru from October 2012 to August 2015 to assess the burden of diarrhea and acute gastroenteritis (AGE) due to norovirus in a lower-middle-income community. During period 1 (October 2012-May 2013), we used a "traditional" diarrhea case definition (>=3 loose/liquid stools within 24 hours). During period 2 (June 2013-August 2015), we used an expanded case definition of AGE (by adding >=2 vomiting episodes without diarrhea or 1-2 vomiting episodes plus 1-2 loose/liquid stools within 24 hours). Stool samples were tested for norovirus by reverse-transcription polymerase chain reaction. Results: During period 1, overall diarrhea and norovirus-associated diarrhea incidence was 37.2/100 person-years (PY) (95% confidence interval [CI], 33.2-41.7) and 5.7/100 PY (95% CI, 3.9-8.1), respectively. During period 2, overall AGE and norovirus associated AGE incidence was 51.8/100 PY (95% CI, 48.8-54.9) and 6.5/100 PY (95% CI, 5.4-7.8), respectively. In both periods, children aged <2 years had the highest incidence of norovirus. Vomiting without diarrhea occurred among norovirus cases in participants <15 years old, but with a higher proportion among children <2 years, accounting for 35% (7/20) of all cases in this age group. Noroviruses were identified in 7% (23/335) of controls free of gastroenteric symptoms. Conclusions: Norovirus was a significant cause of AGE in this community, especially among children <2 years of age. Inclusion of vomiting in the case definition resulted in a 20% improvement for detection of norovirus cases. PMID- 29017283 TI - Reduced Severity of Pertussis in Persons With Age-Appropriate Pertussis Vaccination-United States, 2010-2012. AB - Background: In 2012, >48000 pertussis cases were reported in the United States. Many cases occurred in vaccinated persons, showing that pertussis vaccination does not prevent all pertussis cases. However, pertussis vaccination may have an impact on disease severity. Methods: We analyzed data on probable and confirmed pertussis cases reported through Enhanced Pertussis Surveillance (Emerging Infections Program Network) between 2010 and 2012. Surveillance data were collected through physician and patient interview and vaccine registries. We assessed whether having received an age-appropriate number of pertussis vaccines (AAV) (for persons aged >=3 months) was associated with reduced odds of posttussive vomiting, a marker of more clinically significant illness, or of severe pertussis (seizure, encephalopathy, pneumonia, and/or hospitalization). Adjusted odds ratios were calculated using multivariable logistic regression. Results: Among 9801 pertussis patients aged >=3 months, 77.6% were AAV. AAV status was associated with a 60% reduction in odds of severe disease in children aged 7 months-6 years in multivariable logistic regression and a 30% reduction in odds of posttussive vomiting in persons aged 19 months-64 years. Conclusions: Serious pertussis symptoms and complications are less common among AAV pertussis patients, demonstrating that the positive impact of pertussis vaccination extends beyond decreasing risk of disease. PMID- 29017286 TI - Dosing Colistin Properly: Let's Save "Our Last Resort Old Drug!" PMID- 29017287 TI - Neal S. Kleiman MD: Cardiologist, climber, scientist, survivor. PMID- 29017288 TI - Management of arrhythmias: NOACs, digoxin, alcohol, light, and devices. PMID- 29017289 TI - Comparative evaluation of the efficacy of lignocaine containing topical anesthetic agents during extraction of deciduous anterior teeth. AB - BACKGROUND: The aim of this study was to evaluate the efficacy of 2%, 4% lignocaine, Eutectic Mixture of Local Anesthetics (EMLA) mixture and precaine topical anesthetic agents (with 1:1,000,000 epinephrine) during the extraction of deciduous anterior tooth. METHODS: Eighty patients with preshedding mobility of deciduous anterior tooth were divided randomly into four groups. Lignocaine, in amount of 2% and 4%, precaine and EMLA topical anesthetic agents were applied and the tooth was extracted. VAS has been used to assess the subjective pain while Wong-Baker Faces Scale and SEM Pain Scale have been used to record the objective pain to check the efficacy of these topical anesthetic agents. SPSS ver.17 was used for statistical analysis. Group comparison was done by ANOVA (Fishers F test) and inter comparison was done by Tukeys t-test. RESULTS: Based on the scoring criteria of VAS, SEM and Wong Bakers facial pain scales, precaine had best scores followed by EMLA mixture, 4% lignocaine, and then 2 % lignocaine during extraction of primary anterior teeth with preshedding mobility. CONCLUSIONS: The efficacy of precaine was superior compared to EMLA mixture followed by 4% lignocaine and 2% Lignocaine respectively. PMID- 29017291 TI - Can Patient Education with a Smartphone Application Improve the Quality of Bowel Preparation for Colonoscopy? PMID- 29017290 TI - Role of Advanced Endoscopic Imaging Techniques in the Management of Inflammatory Bowel Disease. AB - Endoscopy plays a crucial role in the management of inflammatory bowel disease (IBD) in terms of diagnosis, monitoring of mucosal status, and surveillance of colitis-associated neoplasia. Mucosal healing evaluated by endoscopy has been recognized as the target of treatment in the era of powerful biologics therapy. The optimal modality for identifying dysplasia in IBD has yet to be well defined. Increasing progress has recently been made in endoscopic technologies to more accurately assess mucosal inflammation and more effectively detect dysplasia. Here we review the data of advanced endoscopic imaging techniques such as chromoendoscopy, virtual chromoendoscopy, endocytoscopy, and confocal laser endomicroscopy in the management of IBD. PMID- 29017292 TI - Carbon Dioxide Insufflation in Endoscopic Submucosal Dissection: Is It an Urgent Need? PMID- 29017294 TI - Identification of Ulceration in Early Gastric Cancer before Resection is Not Easy: Need for a New Guideline for Endoscopic Submucosal Dissection Indication Based on Endoscopic Image. PMID- 29017293 TI - Endoscopic Therapeutic Approach for Dysplasia in Inflammatory Bowel Disease. AB - Long-standing intestinal inflammation in patients with inflammatory bowel disease (IBD) induces dysplastic change in the intestinal mucosa and increases the risk of subsequent colorectal cancer. The evolving endoscopic techniques and technologies, including dye spraying methods and high-definition images, have been replacing random biopsies and have been revealed as more practical and efficient for detection of dysplasia in IBD patients. In addition, they have potential usefulness in detailed characterization of lesions and in the assessment of endoscopic resectability. Most dysplastic lesions without an unclear margin, definite ulceration, non-lifting sign, and high index of malignant change with suspicion for lymph node or distant metastases can be removed endoscopically. However, endoscopic resection of dysplasia in chronic IBD patients is usually difficult because it is often complicated by submucosal fibrosis. In patients with dysplasias that demonstrate submucosa fibrosis or a large size (>=20 mm), endoscopic submucosal dissection (ESD) or ESD with snaring (simplified or hybrid ESD) is an alternative option and may avoid a colectomy. However, a standardized endoscopic therapeutic approach for dysplasia in IBD has not been established yet, and dedicated specialized endoscopists with interest in IBD are needed to fully investigate recent emerging techniques and technologies. PMID- 29017296 TI - Optimal Evaluation of Suspected Choledocholithiasis: Does This Patient Really Have Choledocholithiasis? PMID- 29017295 TI - Balloon-Assisted Enteroscopy and Capsule Endoscopy in Suspected Small Bowel Crohn's Disease. AB - Inflammatory bowel diseases are idiopathic inflammatory diseases of two main types, Crohn's disease and ulcerative colitis. Crohn's disease can affect the entire gastrointestinal tract, and the distal ileum is involved in up to 70% of patients. Moreover, Crohn's disease in one-quarter to one-third of patients involves isolation of the small bowel. Due to the nonspecific symptoms and anatomical location of the disease, small bowel Crohn's disease is a phenotype that is particularly difficult to manage. Since the introduction of capsule endoscopy in 2000 and balloon-assisted enteroscopy in the 21st century, it is now possible to directly inspect for small bowel Crohn's disease. However, the new modalities still have limitations, such as capsule retention and invasiveness of balloon-assisted enteroscopy. The diagnostic yields of both capsule endoscopy and balloon-assisted enteroscopy are high for patients with suspected small bowel Crohn's disease. Therefore, earlier use of capsule endoscopy or balloon-assisted enteroscopy can help with the diagnosis and earlier treatment of these patients to avert possible disastrous outcomes. PMID- 29017297 TI - Endoscopic Balloon Dilation for Crohn's Disease-Associated Strictures. AB - Management of intestinal strictures associated with Crohn's disease (CD) is clinically challenging despite advanced medical therapy directed toward mucosal healing to positively influence the natural course of CD-associated complications. Although medical therapy is available for inflammatory strictures, therapy of fibrostenotic strictures is the domain of surgery and endoscopy. Endoscopic balloon dilation (EBD) has been recognized as a well-established first line procedure in terms of safety and efficacy. Although surgery is a valuable treatment modality for the management of CD-related strictures, EBD can help prevent multiple surgical interventions, which might in the long-term lead to a risk of short bowel syndrome. In this review we discuss requirements, techniques, safety, short- and long-term outcomes, as well as combinations of this procedure with surgical and medical treatment in CD-associated intestinal strictures. PMID- 29017298 TI - Space Available for the Cervical Spinal Cord of Asymptomatic Adult Nigerians. AB - OBJECTIVE: The space available for the spinal cord (SAC) is a measure of spinal cord functional reserve and may vary in different societies. The objective of this study is to measure normal SAC at each subaxial cervical disc level of asymptomatic adult Nigerians and to compare obtained values with published studies worldwide. METHODS: This is a prospective, cross-sectional study using magnetic resonance imaging facility at Memfys Hospital Enugu, from 2012 to 2013. Disc level measurement of midsagittal spinal canal and cord of randomly selected 102 consenting asymptomatic adults, 21 to 50 years. Literature search of related studies worldwide was used to compare with the current study. Analysis was done using inferential and descriptive statistics. RESULTS: Average SAC values were 4.9+/-1.4 mm (C3/4), 4.5+/-1.2 mm (C4/5), 4.6+/-1.4 mm (C5/6), and 4.9+/-1.2 mm (C6/7). In 21-30 years group, SAC was 5.4+/-0.6 mm(C3/4), 4.9+/-0.6 mm(C4/5), 4.9+/-0.6 mm(C5/6), and 5.1+/-0.5 mm(C6/7). In 31-40 years group, SAC was 5.4+/ 0.5 mm(C3/4), 4.6+/-0.5 mm (C4/5), 4.9+/-0.6 mm (C5/6), and 5.3+/-0.6 mm (C6/7); but among 41-50 years group, SAC was 3.8+/-0.6 mm (C3/4), 3.9+/-0.6 mm (C4/5), 3.6+/-0.6 mm (C5/6), and 4.3+/-0.6 mm (C6/7). In females SAC was 4.9+/-1.3 mm(C3/4), 4.5+/-1.2 mm(C4/5), 4.6+/-1.2 mm(C5/6), and 4.8+/-1.1 mm (C6/7). In males, SAC was 4.9+/-1.4 mm(C3/4), 4.6+/-1.2 mm(C4/5), 4.5+/-1.5 mm(C5/6), and 5.1+/-1.3 mm(C6/7). From analysis of variance, impact of age on SAC was 0.118 (p=0.001) while gender had 0.078 (p=0.223). SAC at each level has positive correlation of 0.6 to 0.7 with adjacent levels (p<0.0001). Comparing this result with studies worldwide, our population has lower SAC values than others. CONCLUSION: C4/5 and C5/6 are narrowest subaxial cervical spine levels and probably explain preponderance of C4/5 and C5/6 cord injury. There may be higher incidence of congenital canal stenosis predisposing to worse outcome following cervical spine injury or degenerative diseases in this study population. This is different from European series but similar to Japanese. PMID- 29017300 TI - Long-term Clinical and Radiological Outcomes after Central Decompressive Laminoplasty for Lumbar Spinal Stenosis. AB - OBJECTIVE: There are many technical modifications of decompressive lumbar laminectomy. The purpose of this study was to report long-term clinical and radiological outcomes of central decompressive laminoplasty (CDL), the corresponding author's own modification of lumbar laminectomy for lumbar spinal stenosis (LSS). METHODS: Among 100 patients who underwent CDL by a single surgeon between December 2010 and March 2014, 68 patients were included in this study. Mean follow-up time was 37.7 months. Clinical and radiological data were gathered prospectively and reviewed retrospectively. Clinical outcome was measured by using visual analog scale (VAS) for back/buttock and leg, and the Oswestry Disability Index (ODI). Radiological outcome was measured by neutral slippage percentage, dynamic slippage percentage, and dynamic intervertebral angel on sagittal X-ray. Outcomes after CDL were assessed by changes of clinical and radiological parameters from the baseline. Mixed effect model with random patients' effect as used to test for differences in the repeated measured clinical and radiological data. RESULTS: The patients had no serious complications with an uneventful recovery during the early postoperative period. In the early postoperative period, VAS scores for back/buttock and leg improved significantly and were kept with time (p<0.001). ODI also improved significantly during the postoperative follow-up period (p<0.001). The radiologic parameters were well maintained and showed no progression of instability. During the follow up, a case of herniated disc at same level recurrence was noted after lifting trauma, and 2 adjacent foraminal stenosis needed additional surgery. CONCLUSION: CDL provides long-term pain relief and functional restoration without progression of radiological instability. PMID- 29017299 TI - Variation of C-Reactive Protein and White Blood Cell Counts in Spinal Operation: Primary Fusion Surgery Versus Revision Fusion Surgery. AB - OBJECTIVE: Serum C-reactive protein (CRP) concentrations and white blood cell (WBC) count are commonly used to identify postoperative wound infections. We investigated whether changes in serum CRP levels and WBC counts actually differed between patients undergoing revision spinal fusion surgery and those undergoing a primary fusion. METHODS: Patients who underwent posterolateral fusion (PLF) surgery at Pusan National University Yangsan Hospital between October 2013 and April 2015 were considered for this study. Sixty-seven patients with primary lumbar PLF (pPLF) and 21 with revision PLF (rPLF) were enrolled. A retrospective assessment of preoperative and postoperative CRP levels and WBC count was undertaken. Also, we gathered peak CRP day, and CRP normalization days. Comorbidity data were also obtained to evaluate any effects on the course of CRP and WBC count postoperatively. RESULTS: CRP levels peaked at 3 days after surgery. The maximum CRP values recorded for each group: 4.17 (standard deviation [SD], 4.18) mg/dL and 4.88 (SD, 3.03) mg/dL for pPLF and rPLF. This difference was not statistically significant (p=0.24). A rapid fall in CRP within 5-9 days was observed for both groups. CONCLUSION: Out of our expectation, changes in CRP levels after spinal fusion surgery follow the same course regardless of whether it is a revision operation or not. Because of this result, both the primary PLF surgery and revision PLF surgery should be monitored using CRP in the similar way and the antibiotic administration should be determined. PMID- 29017301 TI - Pelvic Incidence Can Be Changed not only by Age and Sex, but also by Posture Used during Imaging. AB - OBJECTIVE: Computed tomography (CT), rather than conventional 2-dimensional radiography, was used to scan and measure pelvic parameters. The results were compared with measurements using X-ray. METHODS: Pelvic parameters were measured using both CT and X-ray in 254 patients who underwent both abdomino-pelvic CT and X-ray at the pelvic site. We assessed the similarity of the pelvic parameters between the 2 exams, as well as the correlations of pelvic parameters with sex and age. RESULTS: The mean values of the subjects' pelvic parameters measured on X-ray were: sacral slope (SS), 31.6 degrees ; pelvic tilt (PT), 18.6 degrees ; and pelvic incidence (PI), 50.2 degrees . The mean values measured on CT were: SS, 35.1 degrees ; PT, 11.9 degrees ; and PI, 47.0 degrees . PT was found to be 4.07 degrees higher on X-ray and 2.98 degrees higher on CT in women, with these differences being statistically significant (p<0.001, p<0.001). PI was 4.10 degrees higher on X-ray and 2.78 degrees higher on CT in women, with these differences also being statistically significant (p<0.001, p=0.009). We also observed a correlation between age and PI. For men, this correlation coefficient was 0.199 measured using X-ray and 0.184 measured using CT. For women, this correlation coefficient was 0.423 measured using X-ray and 0.372 measured using CT. CONCLUSION: When measured using CT compared to X-ray, SS increased by 3.5 degrees , PT decreased by 6.7 degrees , and PI decreased by 3.2 degrees . There were also statistically significant differences in PT and PI between male and female subjects, while PI was found to increase with age. PMID- 29017302 TI - Cervical Pedicle Screw Placement Using Medial Funnel Technique. AB - OBJECTIVE: Cervical pedicle screw (CPS) placement is very challenging due to high risk of neurovascular complications. We devised a new technique (medial funnel technique) to improve the accuracy and feasibility of CPS placement. METHODS: We reviewed 28 consecutive patients undergoing CPS instrumentation using the medial funnel technique. Their mean age was 51.4 years (range, 30-81 years). Preoperative diagnosis included degenerative disease (n=5), trauma (n=22), and infection (n=1). Screw perforations were graded with the following criteria: grade 0 having no perforation, grade 1 having <25%, grade 2 having 25%-50% and grade 3 having >50% of screw diameter. Grades 0 and 1 were considered as correct position. The degree of perforation was determined by 2 junior neurosurgeons and 1 senior neurosurgeon. RESULTS: A total of 88 CPSs were inserted. The rate of correct placement was 94.3%; grade 0, 54 screws; grade 1, 29 screws; grade 2, 4 screws; and grade 3, 1 screw. No neurovascular complications or failure of instrumentation occurred. In perforated screws (34 screws), lateral perforations were 4 and medial perforations were 30. CONCLUSION: We performed CPS insertion using medial funnel technique and achieved 94.3% (83 of 88) of correct placement. And it can decrease lateral perforation. PMID- 29017303 TI - Single Stage Posterior Approach for Total Resection of Presacral Giant Schwannoma: A Technical Case Report. AB - The neurogenic tumor of frequent occurrence in the presacral area is a schwannoma. Giant presacral schwannoma has a risk for anterior surgical approach because of its massive size and proximity to abundant vascularity of presacral region. We report a single stage posterior approach for total resection of a giant presacral schwannoma. A 40-year-old female patient experienced left buttock pain and tingling sensation at left S1 dermatome. Magnetic resonance imaging showed that the presacral huge mass at S1-3 level with osseous extension and structural remodeling in left sacral ala. The presacral mass was ranging in maximum diameter from 8.0 to 8.6 cm. S2 foramen laminectomy was performed to expose the mass. The tumor capsule and the root were carefully dissected away. The tumor was removed while preserving the capsule by dissecting the plane between the inner wall of the capsule and the tumor. The single stage posterior approach for presacral giant schwannoma is feasible, and it can be a good surgical alternative to prevent pelvic organ or vascular damage and anterior approach related dystocia and infertility. PMID- 29017304 TI - Hemorrhagic Lumbar Synovial Cyst after Microscopic Discectomy. AB - Intraspinal synovial cysts are rare but they are being documented with increasing frequency due to improvements in radiological imaging. However, hemorrhage into synovial cysts is uncommon, and affected patients may present with acute onset radiculopathy. This type of hemorrhage is known to result from rupture of fragile neoangiogenic vessels in the cyst wall, due to a traumatic event or anticoagulant therapy. Here, the authors present a rare case of hemorrhagic lumbar synovial cyst caused by spinal instability after microscopic discectomy. To the best of the authors' knowledge, this is the first report of hemorrhagic lumbar synovial cyst caused by spinal instability following microscopic discectomy in the absence of a traumatic event or anticoagulant therapy. We discuss the pathophysiological mechanism of this uncommon entity and provide a review of the literature. PMID- 29017305 TI - Spontaneous Epidural Hematoma Associated with Venous Phlebolith in Cervical Spine and Possible Pathogenesis. AB - Although the etiology of spontaneous spinal epidural hematoma (SSEH) is unclear, SSEH is known to be associated with anticoagulants, coagulopathy, vascular malformation, hypertension, and pregnancy. However, no report has been issued on the relation between SSEH and venous phlebolith. Here, the authors present an extremely rare case of SSEH associated with phlebolith in the cervical spine and suggest a possible pathogenesis. A 36-year-old man without any relevant medical history presented with neck pain and numbness and severe radiating pain on the left arm. Magnetic resonance imaging showed epidural hematoma at the C5-7 level, and computed tomography revealed a calcified nodule in the left epidural hemorrhage at C6 level. During left partial laminectomy, epidural venous plexus, and thick epidural hematoma were found, and hematoma removal revealed a white, ovoid, smooth, hard mass of diameter 3 mm. Histopathologic examination confirmed the mass as a venous phlebolith. The presence of a calcified solitary nodule in dorsal epidural space indicates the presence of phlebolith and the risk of SSEH. In such cases, the authors recommend spine surgeons should take into consideration the possibility of epidural hemorrhage. PMID- 29017306 TI - Solitary Osteochondroma Presenting as a Dumbbell Tumor Compressing the Cervical Spinal Cord. AB - We report a case of a solitary osteochondroma as a dumbbell tumor compressing the spinal cord and its surgical strategy. The patient is a 16-year-old female with longstanding posterior neck pain and left arm abduction weakness. She was examined by plain X-ray, three-dimensional-computed tomography, magnetic resonance imaging, and vertebral angiography. The analyses indicated a calcified extradural mass compressing the cord in the C3-4 portion extending into the neural and vertebral foramen with eroded vertebral body. The tumor was successfully excised using a modified combined anterior and posterior approach. Histopathologic study of the resected material confirmed the diagnosis. The postoperative assessment was followed by clinical and radiologically therapy for 5 years after surgery. Osteochondroma arises from enchondral bone but it rarely involves the spine, especially not as s dumbbell type. In this patient, the tumor may have arisen from the neural arch and extended into the extradural and extraforaminal space over a long period. We successfully removed the dumbbell tumor with a combined anterior oblique and posterior approach. However, further observation is essential because of the possibility of recurrence and sarcomatous change. PMID- 29017307 TI - Incarceration of Spinal Nerve Root through Incidental Durotomy as a Cause of Sciatica. AB - Incidental durotomies are a frequent complication during spinal surgery. Cerebrospinal fluid (CSF) leakage from a dural tear may be visually apparent intraoperatively, but occasionally, a tear may not be recognized during the procedure. We report our experience in 2 cases of postoperative incarceration of nerve root as a cause of sciatica, without CSF leakage intraoperatively. When durotomy attributable to surgical manipulation does occur, intraoperative identification is mandated. If a patient develops unexplainable postoperative pain and neurological deficits after lumbar discectomy, incarceration of nerve root should be considered in the differential diagnosis. PMID- 29017308 TI - Ganglioneuroma of the Sacrum. AB - Presacral ganglioneuromas are extremely rare benign tumors and fewer than 20 cases have been reported in the literature. Ganglioneuromas are difficult to be differentiated preoperatively from tumors such as schwannomas, meningiomas, and neurofibromas with imaging modalities. The retroperitoneal approach for resection of presacral ganglioneuroma was performed for gross total resection of the tumor. Recurrence and malignant transformation of these tumors is rare. Adjuvant chemotherapy or radiation therapy is not indicated because of their benign nature. We report a case of a 47-year-old woman with a presacral ganglioneuroma. PMID- 29017309 TI - Langerhans Cell Histiocytosis of the Thoracic Spine in an Adult. AB - We report a case of a 45-year-old man with a complaint of both leg weakness and hypoesthesia. Radiological evaluation revealed an osteolytic lesion of the ninth thoracic vertebra. The patient underwent posterior corpectomy with total excision of the tumor, mesh cage insertion with posterior screw fixation and subsequent radiotherapy. Histology confirmed the diagnosis of Langerhans cell histiocytosis (LCH). This case report presents the diagnostic work-up, histopathological evaluation, and the treatment procedures of rare LCH in the thoracic spine. PMID- 29017310 TI - Angiolipoma on the Lumbar Spine. AB - Angiolipomas are composed of mature adipose tissue and blood vessels. Spinal angiolipomas are rare benign tumors with a good prognosis, and most symptoms are due to progressive compression of the spinal cord and root. The treatment of choice is total resection without any additional therapy. We report a case of an epidural angiolipoma on the lumbar spine in a 69-year-old man with weakness of the lower extremities. Lumbar magnetic resonance images revealed a well-enhanced epidural mass. He underwent laminectomy, and the tumor was completely removed. Pathologic examination confirmed the tumor was an angiolipoma. The patient's symptoms gradually improved postoperatively. PMID- 29017311 TI - Posterior Epidural Herniation of a Lumbar Disk Fragment at L2-3 That Mimicked an Epidural Hematoma. AB - Lumbar disk herniation is common. Because of the posterior longitudinal ligament, migration usually occurs into the ventral epidural space. Rarely, fragments migrate into the dorsal epidural space. A 57-year-old man presented with lower back pain and weakness on right hip flexion and right knee flexion. He had lower back pain 1 day previously and received a transforaminal epidural block at a local hospital. The next day, he reported weakness of the right lower extremity. Lumbar spine magnetic resonance imaging revealed a dorsal epidural lesion with compression of the thecal sac at L2-3. Initial differential diagnoses included epidural hematoma after the block, neoplasm, and a sequestrated disk. Posterior lumbar decompression was performed. The lesion was identified intraoperatively as a large herniated disk fragment. Posterior epidural herniation of a lumbar disk fragment is rare and may be difficult to diagnose preoperatively. It may present as a variety of clinical scenarios and, as in this case, may mimic epidural hematoma. PMID- 29017312 TI - Aortic Injury during Transforaminal Lumbar Interbody Fusion. AB - Aortic injury during transforaminal lumbar interbody fusion (TLIF) is a rare but severe complication. We experienced aortic injury during TLIF at L3-4 with a 59 year-old woman diagnosed with an adjacent segment disease at L3-4. Severe bleeding occurred during disc space expansion, and the blood pressure dropped to 60/40 mmHg. The patient's vital sign stabilized after compression with gauze and Gelfoam in addition to blood transfusion. The patient was treated with endovascular repair using a percutaneous technique after intertransverse fusion at L3-4 was completed. She recovered and is being followed-up in the outpatient department. PMID- 29017313 TI - Posttraumatic Guillain-Barre Syndrome Immediately Following a Traffic Accident. AB - Guillain-Barre syndrome (GBS) is an inflammatory demyelinating polyneuropathy characterized by areflexic paralysis. Most cases of GBS are preceded by an infection, however, posttraumatic GBS has also recently been reported. We report a case of posttraumatic GBS immediately following a traffic accident. We think this case is of clinical significance for practitioners because of the rare cause of a sudden flaccid paralysis following trauma. PMID- 29017314 TI - Thyroid Fine-Needle Aspiration Cytology Practice in Korea. AB - We reviewed the current status of thyroid fine-needle aspiration cytology (FNAC) in Korea. Thyroid aspiration biopsy was first introduced in Korea in 1977. Currently, radiologists aspirate the thyroid nodule under the guidance of ultrasonography, and cytologic interpretation is only legally approved when a cytopathologist makes the diagnosis. In 2008, eight thyroid-related societies came together to form the Korean Thyroid Association. The Korean Society for Cytopathology and the endocrine pathology study group of the Korean Society for Pathologists have been updating the cytologic diagnostic guidelines. The Bethesda System for Reporting Thyroid Cytopathology was first introduced in 2009, and has been used by up to 94% of institutions by 2016. The average diagnosis rates are as follows for each category: I (12.4%), II (57.9%), III (10.4%), IV (2.9%), V (3.7%), and VI (12.7%). The malignancy rates in surgical cases are as follows for each category: I (28.7%), II (27.8%), III (50.6%), IV (52.3%), V (90.7%), and VI (100.0%). Liquid-based cytology has been used since 2010, and it was utilized by 68% of institutions in 2016. The categorization of thyroid lesions into "atypia of undetermined significance" or "follicular lesion of undetermined significance" is necessary to draw consensus in our society. Immunocytochemistry for galectin-3 and BRAF is used. Additionally, a molecular test for BRAF in thyroid FNACs is actively used. Core biopsies were performed in only 44% of institutions. Even the institutions that perform core biopsies only perform them for less than 3% of all FNACs. However, only 5% of institutions performed core biopsies up to three times more than FNAC. PMID- 29017315 TI - Thyroid Cytology: The Japanese System and Experience at Yamashita Thyroid Hospital. AB - In Japan, fine-needle aspiration (FNA) cytology is the most important diagnostic modality for triaging patients with thyroid nodules. A clinician (endocrinologist, endocrine surgeon, or head and neck surgeon) generally performs FNA cytology at the outpatient clinic, and ultrasound (US)-guided FNA is widespread because US is extremely common and most clinicians are familiar with it. Although almost all FNA thyroid samples are examined by certified cytopathologists and pathologists, some clinicians assess cytological specimens themselves. In Japan, there are two clinical guidelines regarding the management of thyroid nodules. One is the General Rules for the Description of Thyroid Cancer (GRDTC) published by the Japanese Society of Thyroid Surgery (JSTS) in 2005, and the other is the national reporting system for thyroid FNA cytology published by the Japan Thyroid Association in 2013 (Japanese system). Although the Bethesda System for Reporting Thyroid Cytopathology (Bethesda system) is rarely used in Japan, both the GRDTC and Japanese system tried to incorporate the Bethesda system so that the cytological diagnoses would be compatible with each other. The essential point of the Japanese system is stratification of follicular neoplasm (FN) into three subgroups based on cytological features in order to reduce unnecessary diagnostic thyroidectomy, and this system has been successful in stratifying the risk of malignancy in FN patients at several high-volume thyroid surgery centers. In Japan, the measurement of thyroglobulin and/or calcitonin in FNA needle washings is often used as an adjunct for diagnosis of possible cervical lymph node metastasis when FNA cytology is performed. PMID- 29017316 TI - Piggyback Rendezvous Cannulation for Endoscopic Metal Stent Conversion of Percutaneous Transhepatic Biliary Drainage. PMID- 29017317 TI - Novel Multi-isotope Tracer Approach To Test ZnO Nanoparticle and Soluble Zn Bioavailability in Joint Soil Exposures. AB - Here we use two enriched stable isotopes, 68Znen and 64Znen (>99%), to prepare 68ZnO nanoparticles (NPs) and soluble 64ZnCl2. The standard LUFA 2.2 test soil was dosed with 68ZnO NPs and soluble 64ZnCl2 to 5 mg kg-1 each, plus between 0 and 95 mg kg-1 of soluble ZnCl2 with a natural isotope composition. After 0, 1, 3, 6, and 12 months of soil incubation, earthworms (Eisenia andrei) were introduced for 72 h exposures. Analyses of soils, pore waters, and earthworm tissues using multiple collector inductively coupled plasma mass spectrometry allowed the simultaneous measurement of the diagnostic 68Zn/66Zn, 64Zn/66Zn, and 68Zn/64Zn ratios, from which the three different isotopic forms of Zn were quantified. Eisenia andrei was able to regulate Zn body concentrations with no difference observed between the different total dosing concentrations. The accumulation of labeled Zn by the earthworms showed a direct relationship with the proportion of labeled to total Zn in the pore water, which increased with longer soil incubation times and decreasing soil pH. The 68Znen/64Znen ratios determined for earthworms (1.09 +/- 0.04), soils (1.09 +/- 0.02), and pore waters (1.08 +/- 0.02) indicate indistinguishable environmental distribution and uptake of the Zn forms, most likely due to rapid dissolution of the ZnO NPs. PMID- 29017318 TI - Environmental Aspects of Use of Recycled Carbon Fiber Composites in Automotive Applications. AB - The high cost and energy intensity of virgin carbon fiber manufacture provides an opportunity to recover substantial value from carbon fiber reinforced plastic wastes. In this study, we assess the life cycle environmental implications of recovering carbon fiber and producing composite materials as substitutes for conventional and proposed lightweight materials in automotive applications (e.g., steel, aluminum, virgin carbon fiber). Key parameters for the recycled carbon fiber materials, including fiber volume fraction and fiber alignment, are investigated to identify beneficial uses of recycled carbon fiber in the automotive sector. Recycled carbon fiber components can achieve the lowest life cycle environmental impacts of all materials considered, although the actual impact is highly dependent on the design criteria (lambda value) of the specific component. Low production impacts associated with recycled carbon fiber components are observed relative to lightweight competitor materials (e.g., aluminum, virgin carbon fiber reinforced plastic). In addition, recycled carbon fiber components have low in-use energy use due to mass reductions and associated reduction in mass-induced fuel consumption. The results demonstrate environmental feasibility of the CFRP recycling materials, supporting the emerging commercialization of CF recycling technologies and identifying significant potential market opportunities in the automotive sector. PMID- 29017319 TI - A Prototype for Modular Cell Engineering. AB - When aiming to produce a target chemical at high yield, titer, and productivity, various combinations of genetic parts available to build the target pathway can generate a large number of strains for characterization. This engineering approach will become increasingly laborious and expensive when seeking to develop desirable strains for optimal production of a large space of biochemicals due to extensive screening. Our recent theoretical development of modular cell (MODCELL) design principles can offer a promising solution for rapid generation of optimal strains by coupling a modular cell with exchangeable production modules in a plug and-play fashion. In this study, we experimentally validated some design properties of MODCELL by demonstrating the following: (i) a modular (chassis) cell is required to couple with a production module, a heterologous ethanol pathway, as a testbed, (ii) degree of coupling between the modular cell and production modules can be modulated to enhance growth and product synthesis, (iii) a modular cell can be used as a host to select an optimal pyruvate decarboxylase (PDC) of the ethanol production module and to help identify a hypothetical PDC protein, and (iv) adaptive laboratory evolution based on growth selection of the modular cell can enhance growth and product synthesis rates. We envision that the MODCELL design provides a powerful prototype for modular cell engineering to rapidly create optimal strains for synthesis of a large space of biochemicals. PMID- 29017320 TI - Factors Controlling the Reactivity and Chemoselectivity of Resonance Destabilized Amides in Ni-Catalyzed Decarbonylative and Nondecarbonylative Suzuki-Miyaura Coupling. AB - N-Glutarimide amides have recently emerged as an exceptional group of compounds with unusually high reactivity in amide C-N bond activation. To understand the key factors that control the remarkable reactivity of these resonance destabilized amides, we explored the Ni-catalyzed decarbonylative and nondecarbonylative Suzuki-Miyaura coupling with N-glutarimide amides through density functional theory calculations. Two leading effects are responsible for the C-N cleavage activity of N-glutarimide amides, the coordinating N substituents and the geometric twisting. The carbonyl substituent of the N glutarimide amides provides crucial nickel-oxygen interaction, which essentially acts as a directing group to facilitate the formation of the reactive intermediate for the amide C-N bond cleavage. The geometric twisting weakens the resonance stability by removing the acyl-nitrogen conjugation, which lowers the energy penalty for the C-N bond stretch during oxidative addition. For the chemoselectivity of decarbonylation versus carbonyl retention, we found that the C-C reductive elimination for ketone formation is kinetically faster than that for biaryl formation, while ketone is thermodynamically less stable with respect to the decarbonylated biaryls. The computations also suggest that the nickel catalyst is able to promote the decarbonylation of biaryl ketones via an unexpected C-C bond activation. PMID- 29017321 TI - Terminal Electron-Proton Transfer Dynamics in the Quinone Reduction of Respiratory Complex I. AB - Complex I functions as a redox-driven proton pump in aerobic respiratory chains. By reducing quinone (Q), complex I employs the free energy released in the process to thermodynamically drive proton pumping across its membrane domain. The initial Q reduction step plays a central role in activating the proton pumping machinery. In order to probe the energetics, dynamics, and molecular mechanism for the proton-coupled electron transfer process linked to the Q reduction, we employ here multiscale quantum and classical molecular simulations. We identify that both ubiquinone (UQ) and menaquinone (MQ) can form stacking and hydrogen bonded interactions with the conserved Q-binding-site residue His-38 and that conformational changes between these binding modes modulate the Q redox potentials and the rate of electron transfer (eT) from the terminal N2 iron sulfur center. We further observe that, while the transient formation of semiquinone is not proton-coupled, the second eT process couples to a semiconcerted proton uptake from conserved tyrosine (Tyr-87) and histidine (His 38) residues within the active site. Our calculations indicate that both UQ and MQ have low redox potentials around -260 and -230 mV, respectively, in the Q binding site, respectively, suggesting that release of the Q toward the membrane is coupled to an energy transduction step that could thermodynamically drive proton pumping in complex I. PMID- 29017322 TI - Fabrication and Properties of a Free-Standing Two-Dimensional Titania. AB - The synthesis of free-standing two-dimensional titania (2-D TiO2) with a reduced band gap presents complex challenges to synthetic chemists. Here, we report a free-standing 2-D TiO2 sheet synthesized via a one-step solvothermal methodology, with a measured optical onset at ~1.84 eV. Using first-principles calculations in combination with experiment, we propose that the as-formed 2-D TiO2 sheets are layers of the lepidocrocite TiO2 structure, but with large nonuniform strains consistent with its crumpled morphology. These strains cause a significant change in the quasiparticle band structure and optical absorption spectra, resulting in large absorption in the visible-light region. This narrow band gap 2-D TiO2 can catalyze the formation of singlet oxygen and the degradation of dye pollutants with low-energy photons of solar light. Our work demonstrates that lattice strains intrinsic to 2-D materials, especially its crumpled, free-standing forms, can result in new and useful properties. PMID- 29017323 TI - DFT and AFIR Study on the Mechanism and the Origin of Enantioselectivity in Iron Catalyzed Cross-Coupling Reactions. AB - The mechanism of the full catalytic cycle for Fe-chiral-bisphosphine-catalyzed cross-coupling reaction between alkyl halides and Grignard reagents (Nakamura and co-workers, J. Am. Chem. Soc. 2015, 137, 7128) was rationalized by using density functional theory (DFT) and multicomponent artificial force-induced reaction (MC AFIR) methods. The computed mechanism consists of (a) C-Cl activation, (b) transmetalation, (c) C-Fe bond formation, and (d) C-C bond formation through reductive elimination. Our survey on the prereactant complexes suggested that formation of FeII(BenzP*)Ph2 and FeI(BenzP*)Ph complexes are thermodynamically feasible. FeI(BenzP*)Cl complex is the active intermediate for C-Cl activation. FeII(BenzP*)Ph2 complex can be formed if the concentration of Grignard reagent is high. However, it leads to biphenyl (byproduct) instead of the cross-coupling product. This explains why slow addition of Grignard reagent is critical for the cross-coupling reaction. The MC-AFIR method was used for systematic determination of transition states for C-Fe bond formation and C-C bond formation starting from the key intermediate FeII(BenzP*)PhCl. According to our detailed analysis, C-C bond formation is the selectivity-determining step. The computed enantiomeric ratio of 95:5 is in good agreement with the experimental ratio (90:10). Energy decomposition analysis suggested that the origin of the enantioselectivity is the deformation of Ph-ligand in Fe-complex, which is induced by the bulky tert-butyl group of BenzP* ligand. Our study provides important mechanistic insights for the cross-coupling reaction between alkyl halides and Grignard reagents and guides the design of efficient Fe-based catalysts for cross-coupling reactions. PMID- 29017324 TI - Molecular Dynamics Simulations of Ceramide and Ceramide-Phosphatidylcholine Bilayers. AB - Recent studies in lipid raft formation and stratum corneum permeability have focused on the role of ceramides (CER). In this study, we use the all-atom CHARMM36 (C36) force field to simulate bilayers using N-palmitoylsphingosine (CER16) or alpha-hydroxy-N-stearoyl phytosphingosine (CER[AP]) in 1,2-dimyristoyl sn-glycero-3-phosphocholine (DMPC) or 1-palmitoyl-2-oleoylphosphatidylcholine (POPC), which serve as general membrane models. Conditions are replicated from experimental studies for comparison purposes, and concentration (XCER) is varied to probe the effect of CER on these systems. Comparisons with experiment based on deuterium order parameters and bilayer thickness demonstrate good agreement, thus supporting further use of the C36 force field. CER concentration is shown to have a profound effect on nearly all membrane properties including surface area per lipid, chain order and tilt, area compressibility moduli, bilayer thickness, hydrogen bonding, and lipid clustering. Hydrogen bonding in particular can significantly affect other membrane properties and can even encourage transition to a gel phase. Despite CER's tendency to condense the membrane, an expansion of CER lipids with increasing XCER is possible depending on how the balance between various hydrogen-bond pairs and lipid clustering is perturbed. Based on gel phase transitions, support is given for phytosphingosine's role as a hydrogen-bond bridge between sphingosine ordered domains in the stratum corneum. PMID- 29017325 TI - Photocatalytic Active Mesoporous Carbon/ZnO Hybrid Materials from Block Copolymer Tethered ZnO Nanocrystals. AB - Severe water pollution issues present an important contemporary challenge that drives the development and advancement of efficient and environmentally benign photocatalysts that enable the degradation of pollutants upon visible light irradiation. One example is zinc oxide/carbon (ZnO/C) hybrid materials that have been shown to be effective photocatalysts. To maximize the effectiveness of ZnO/C hybrids, materials with high accessible surface area of ZnO are required. Here, a novel strategy is presented to enable the synthesis of fine dispersions of ZnO nanoparticles within a porous carbon matrix. The synthesis entails the grafting of ZnO nanparticles with polystyrene-b-poly(styrene-co-acrylonitrile) (PS-b-PSAN) block copolymer and subsequent pyrolysis of the material under inert gas (N2) atmosphere. During the pyrolysis process, the PS block effectively prevents agglomeration of ZnO particles, thus resulting in a fine dispersion of ZnO nanocrystals within a prorous C matrix. Materials are found to exhibit a dye adsorption capacity of 125 mg g-1 (from a methylene blue aqueous solution with a concentration of 305 mg L-1) and dye degradation rate constant of 0.021 min-1. The significant increase of effective surface area and degradation efficacy (as compared to ZnO/C synthesized by the pyrolysis of binary PSAN/ZnO blends) is rationalized as a consequence of the increased porosity that promotes dye adsorption and transport within the hybrid material. PMID- 29017326 TI - Mechanism of Nakamura's Bisphosphine-Iron-Catalyzed Asymmetric C(sp2)-C(sp3) Cross-Coupling Reaction: The Role of Spin in Controlling Arylation Pathways. AB - Quantum mechanical calculations are employed to investigate the mechanism and origin of stereoinduction in asymmetric iron-catalyzed C(sp2)-C(sp3) cross coupling reaction between Grignard reagents and alpha-chloroesters. A coherent mechanistic picture of this transformation is revealed. These results have broad implications for understanding the mechanisms of iron-catalyzed cross-coupling reactions and rational design of novel iron-based catalysts for asymmetric transformations. PMID- 29017327 TI - Enhancing the Bactericidal Efficacy of Nanostructured Multifunctional Surface Using an Ultrathin Metal Coating. AB - Insects and plants exhibit bactericidal behavior through nanostructures, which leads to physical contact killing that does not require antibiotics or chemicals. Also, certain metallic ions (e.g., Ag+ and Cu2+) are well-known to kill bacteria by disrupting their cellular functionalities. The aim of this study is to explore the improvement in bactericidal activity by combining extreme physical structure with surface chemistry. We have fabricated tall (8-9 MUm high) nanostructures on silicon surfaces (NSS) having sharp tips (35-110 nm) using a single-step, maskless deep reactive ion etching technique inspired by dragonfly wing. Bactericidal efficacy of the nanostructured surfaces coated with a thin layer of silver (NSS_Ag) or copper (NSS_Cu) was measured quantitatively using standard viability plate-count method and flow cytometry. NSS_Cu surfaces kill bacteria very efficiently (killing 97% within 30 min) when compared to the uncoated NSS. This can be attributed to the addition of a surface chemistry to the nanostructures. The antibacterial activity of NSS_Cu is further indicated by the morphological differences of the dying/dead bacteria observed in the SEM images. The nanostructured surfaces demonstrate excellent superhydrophobic behavior, even with an ultrathin layer of metal (Ag/Cu) coating. The nanostructured surfaces exhibit static contact angle greater than 150 degrees and contact hysteresis less than 10 degrees . Moreover, reflectance is found to be <1% (for NSS_Cu < 0.5%) for all the nanostructured surfaces in the wavelength range 250-800 nm. The results obtained suggest that the fabricated nanostructured surfaces are multifunctional and can be used in various practical applications. PMID- 29017328 TI - The Tolerome: A Database of Transcriptome-Level Contributions to Diverse Escherichia coli Resistance and Tolerance Phenotypes. AB - Tolerance and resistance are complex biological phenotypes that are desirable bioengineering goals for those seeking to design industrial strains or prevent the spread of antibiotic resistance. Over decades of research, a wealth of information has been generated to attempt to decode a molecular basis for tolerance, but to fully achieve the goal of engineering tolerance, researchers must be able to easily learn from a variety of data sources. To this end, we here describe a resource designed to enable scrutiny of diverse tolerance phenotypes. We have curated hundreds of gene expression studies exploring the response of Escherichia coli to chemical and environmental perturbations, from antibiotics to biofuels and solvents and more. Overall, our efforts give rise to a database encompassing more than 56 000 gene expression changes across 89 different stress conditions. This resource is designed for compatibility with the Resistome database, which includes more than 5000 strains with mutations conferring resistance or sensitivity but no transcriptomic data. Thus, the work here results in the first combined resource specialized to tolerance and resistance in E. coli that supports investigations across genomic, transcriptomic, and phenotypic levels. We leverage the database to identify promising bioengineering targets by searching globally across multiple stress conditions as well as by narrowing the focus to fewer conditions of interest, such as biofuel stress and antibiotic stress. We discuss some of the most frequently differentially expressed or coexpressed genes, and predict which transcription factors and sigma factors most likely contribute to gene expression profiles in a wide array of conditions. We also compare profiles from sensitive and resistant strains, gaining knowledge of how responses differ per overrepresented gene ontology terms. Finally, we search for genes that are frequently differentially expressed but not mutated, with the expectation that these may present interesting targets for future engineering efforts. The curated data presented here is publicly available, and should be advantageous to those studying a variety of bacterial tolerance phenotypes. PMID- 29017329 TI - Modulation of n-Type Units in Bipolar Host Materials toward High-Performance Phosphorescent OLEDs. AB - 9'-Pyridinyl-9'H-9,3':6',9"-tercarbazole (PyCz) is a bipolar host material in phosphorescent organic light-emitting diodes (PhOLEDs). A second n-type unit, either pyridine or diphenylphosphine dioxide (DPPO), is introduced onto the pyridine ring of PyCz at para- or metasite to design and prepare four novel "dual n-type unit bipolar host" materials m-BPyCz, p-BPyCz, m-POPyCz, and p-POPyCz. The incorporation of the second n-type unit pulls down the lowest unoccupied molecular orbitals and facilitates electron injection and transportation, resulting in better charge-balancing ability. As a result, these dual n-type unit bipolar hosts exhibit higher efficiencies and slower efficiency roll-off in their blue and green PhOLEDs. In particular, m-POPyCz containing a bulky DPPO as the second n-type unit with a metalinking possesses the best charge-balancing state and generates a maximum external quantum efficiency (etaext) of 27.0% (corresponding to a current efficiency of 51.9 cd A-1 and a power efficiency of 46.5 lm W-1) in its sky-blue device and still remained at a high etaext of 23.6% even at the practical brightness of 1000 cd m-2. These results clearly demonstrate that the "dual n-type unit bipolar hosts" with an optimized substitution position and steric effect is a new and effective type of host materials for high-performance OLEDs. PMID- 29017331 TI - Distinct prognostic roles of HSPB1 expression in non-small cell lung cancer. AB - Lung cancer is the leading cause of cancer morbidity and mortality around world. Heat shock protein beta-1 (HSPB1) expression is aberrantly increased in non-small cell lung cancer (NSCLC) patients. However, the roles of HSPB1 expression in the prognosis of NSCLC are still elusive. In this study, we investigated the prognostic roles of HSPB1 in NSCLC by using "The Kaplan-Meier plotter" (KM plotter) database. Our data indicated that HSPB1 mRNA low expression was correlated to better overall survival (OS) for all NSCLC patients, hazard ratio (HR) 1.41 (1.24-1.61), p=1.1e-7, and better OS in lung adenocarcinoma (LUAD) patients, HR 1.81 (1.42-2.32), p=1.5e-06, but not in lung squamous cell carcinoma (LUSC) patients, HR 1.21 (0.94-1.55), p=0.14. In addition, mRNA low expression of HSPB1 is also significantly associated with better OS of NSCLC patients in different smoking status, in different chemotherapy status, in clinical stage I et II, as well as patients with successful surgery treatment. Our results indicated that HSPB1 expression may have distinct prognostic values in NSCLC patients, and may provide an effective clinical strategy to accurately predict the prognosis of NSCLC patients. PMID- 29017332 TI - Shared decision making in mental health: the importance for current clinical practice. AB - OBJECTIVES: We reviewed the literature on shared decision making (regarding treatments in psychiatry), with a view to informing our understanding of the decision making process and the barriers that exist in clinical practice. METHODS: Narrative review of published English-language articles. RESULTS: After culling, 18 relevant articles were included. Themes identified included models of psychiatric care, benefits for patients, and barriers. There is a paucity of published studies specifically related to antipsychotic medications. CONCLUSIONS: Shared decision making is a central part of the recovery paradigm and is of increasing importance in mental health service delivery. The field needs to better understand the basis on which decisions are reached regarding psychiatric treatments. Discrete choice experiments might be useful to inform the development of tools to assist shared decision making in psychiatry. PMID- 29017333 TI - Predicting Sexual Revictimization in Childhood and Adolescence: A Longitudinal Examination Using Ecological Systems Theory. AB - A substantial proportion of sexual abuse victims report repeat sexual victimization within childhood or adolescence; however, there is limited understanding of factors contributing to revictimization for youth. Thus, the present study examined predictors of sexual revictimization prior to adulthood using ecological systems theory. Records of 1,915 youth presenting to a Child Advocacy Center (CAC) were reviewed to identify individual, familial, and community factors as well as initial abuse characteristics associated with risk for revictimization. Results showed that 11.1% of youth re-presented to the CAC for sexual revictimization. At the individual level, younger children, girls, ethnoracial minority youth, and those with an identified mental health problem were most likely to experience revictimization. Interpersonal factors that increased vulnerability included the presence of a noncaregiving adult in the home, being in mental health treatment, and domestic violence in the family. Community-level factors did not predict revictimization. When factors at all levels were examined in conjunction, however, only individual-level factors significantly predicted the risk for revictimization. Findings from this study provide valuable information for CACs when assessing risk for re-report of sexual abuse and add to the field's understanding of revictimization within childhood. PMID- 29017334 TI - Brexpiprazole: a new leaf on the partial dopamine agonist branch. AB - OBJECTIVES: Brexpiprazole is a new dopamine partial agonist antipsychotic in the same class as aripiprazole. This paper will briefly review brexpiprazole and compare it with aripiprazole. CONCLUSIONS: Brexpiprazole and aripiprazole are both partial agonists at dopamine D2, and serotonin 5-HT1A and antagonists at serotonin 5-HT2A and noradrenergic alpha1B receptors. However, the two drugs are significantly different in potencies at various receptors; neurochemical profiles predict that brexpiprazole may be comparable with aripiprazole in its antipsychotic efficacy but may cause less akathisia, extrapyramidal side effects (EPS) and activation. In pivotal trials brexpiprazole demonstrated antipsychotic efficacy in short and long-term studies; it was also found to be an effective adjunct in patients with major depression resistant to antidepressants. Akathisia can occur early in treatment with brexpiprazole, as can minor weight gain and prolactin elevation. Indirect data extrapolations from pivotal studies suggest that brexpiprazole and aripiprazole have comparable efficacy but brexpiprazole may cause less akathisia. Like aripiprazole, brexpiprazole has been approved in the USA for use in schizophrenia and antidepressant-resistant depression. Although much more clinical experience is needed, brexpiprazole appears to be distinct from aripiprazole and a promising new 'metabolically-friendly' antipsychotic option for treatment of psychoses and mood disorders. PMID- 29017335 TI - Oxytocin Levels in Community-Collected Saliva Samples Transported by Dry Versus Wet Ice. AB - Oxytocin (OT), a neuropeptide produced primarily in the hypothalamus, is associated with both critical physiological and psychological processes, particularly stress and feelings of affiliation. Increasingly, researchers are seeking ways to reliably incorporate OT as an outcome biomarker in clinical research. Previously, OT levels were measured in plasma or urine. Recently, researchers have measured this biomarker in saliva, particularly when conducting research in clinical and community settings. In spite of increased interest in the use of salivary OT in clinical research, procedures for handling, transport, and analysis of specimens vary. It is not known if significant OT protein degradation occurs if samples are initially transported on wet ice before being frozen. The aim of this study is to evaluate the effect of transport media (wet vs. dry ice) on OT levels derived from saliva collected from 12 postpartum women residing in the community. Saliva collected from each participant was divided between two microcentrifuge tubes (MIDSCI, Valley Park, MO), one placed on wet ice and one on dry ice for transport from the participant's home to the laboratory freezer. Time from collection to storage freezer was recorded. Laboratory personnel, blinded to method of transport, batch processed the samples. No significant differences in OT levels were found by transport method. Despite large interperson variations in OT levels, there were negligible intraperson variations. Although further research is required to identify factors (including transport time) related to interperson variation, this study supports the use of wet ice as a means of transporting salivary OT specimens in community based research. PMID- 29017337 TI - Promoting Face-to-Face Dialogue for Community Engagement in a Digital Age. AB - Background Health researchers in urban centers recognize the need to engage with inner-city community-based organizations. Funding for face-to-face engagement is often limited because most work done by agencies and academics now focuses on the use of digital technology. Purpose This article presents reflections from a grant project aimed at establishing community engagement between academic health researchers and interdisciplinary inner-city community health and social service providers. Method This study utilized a community-based participatory action approach. This study included a 1-day collaborative meeting to promote academic agency engagement. During this meeting, the research participants brainstormed research priorities and used colored stickers to rank them. The research team met the following day to debrief the meeting and to begin analyzing the data together. Results The findings from this project have stimulated dialogue among the agency partners and project team researchers with respect to current collaborations, services provided, and research priorities. Although digital or virtual meetings have their place, fostering community engagement through a face to-face meeting proved invaluable to the participants. Conclusions The success of this Canadian Institutes of Health Research-funded project demonstrates the value of academic-agency partnership, the positive aspects of gathering community, and engagement in better meeting the research needs of inner-city organizations. PMID- 29017336 TI - Increase in Oxytocin From Skin-to-Skin Contact Enhances Development of Parent Infant Relationship. AB - OBJECTIVE: To examine changes that occur in infant and parent salivary oxytocin (OT) and salivary cortisol (SC) levels during skin-to-skin contact (SSC) and whether SSC alleviates parental stress and anxiety while also supporting mother father-infant relationships. METHODS: This randomized crossover study was conducted in the neonatal intensive care unit (NICU) with a sample of 28 stable preterm infants and their parents. Saliva samples were collected from infants, mothers, and fathers on Days 1 and 2 (1/parent) for OT and cortisol measurement pre-SSC, during a 60-min SSC session, and a 45-min post-SSC. Parental anxiety was measured at the same time points. Parent-infant interaction was examined prior to discharge on Day 3 via video for synchrony and responsiveness using Dyadic Mutuality Coding. RESULTS: Salivary OT levels increased significantly during SSC for mothers ( p < .001), fathers ( p < .002), and infants ( p < .002). Infant SC levels decreased significantly ( p < .001) during SSC as compared to before and after SSC. Parent anxiety scores were significantly related to parent OT and SC levels. Parents with higher OT levels exhibited more synchrony and responsiveness ( p < .001) in their infant interactions. CONCLUSION: This study addresses a gap in understanding the mechanisms linking parent-infant contact to biobehavioral responses. SSC activated OT release and decreased infant SC levels. Facilitation of SSC may be an effective intervention to reduce parent and infant stress in the NICU. Findings advance the exploration of OT as a potential moderator for improving responsiveness and synchrony in parent-infant interactions. PMID- 29017353 TI - Maternal and child nutrition in rural Chhattisgarh: the role of health beliefs and practices. AB - From research in central Chhattisgarh, this paper interprets the bearing that healthcare beliefs and practices may have in shaping maternal and child nutrition both in the light of biomedical recommendations and within the context and constraints of a rural village setting. It contends that health beliefs and practices that are at variance from biomedical recommendations appear to have few consequences for gestational nutrition and for child health in relation to pregnancy. In the postpartum however, health ideas at variance from biomedical recommendations appear to have an important bearing on maternal nutrition and infant feeding, and may put mothers and children at risk of nutritional deficiency. Maternal 'eating down' following a surgical procedure such as a caesarean delivery or tubectomy is especially noteworthy, since food intake quantity is reduced over an extended time frame. While caring practices are influenced by cultural formulations, they also reflect, perhaps, adaptations to health risks. PMID- 29017356 TI - Antimicrobial activity of Austroeupatorium inulaefolium (H.B.K.) against intracellular and extracellular organisms. AB - The antimicrobial activity of Austroeupatorium inulaefolium (H.B.K.) essential oil was studied in different pathogens species and its cytotoxicity activity was determinated on different cellular lines. Despite the good antibacterial activity of A. inulaefolium, it has been cytotoxic at low concentrations. Consequently it might be interesting to determine the antimicrobial activity and cytotoxicity of the major compounds of this essential oil. PMID- 29017354 TI - Persistent SIRS and acute fluid collections are associated with increased CT scanning in acute interstitial pancreatitis. AB - BACKGROUND: The use of computed tomography (CT) in acute pancreatitis (AP) continues to increase in parallel with the increasing use of diagnostic imaging in clinical medicine. AIM: To determine the factors associated with obtaining >1 CT scan in acute interstitial pancreatitis (AIP). METHODS: Demographic and clinical data of all adult patients admitted between 1/2010 and 1/2015 with AP (AP) were evaluated. Only patients with a CT severity index (CTSI) <= 3 on a CT obtained within 48 h of presentation were included. RESULTS: A total of 229 patients were included, of whom 206 (90%) had a single CT and 23 (10%) had >1 CT during the first week of hospitalization. Patients undergoing >1 CT had significantly higher rates of acute fluid collection (AFC), persistent SIRS, opioid use >=4 days, and persistent organ failure compared to those undergoing 1 CT (p < .05 for all). On multivariable analysis, only persistent SIRS (OR = 3.6, 95% CI 1.4-9.6, p = .01) and an AFC on initial CT (OR = 3.5, 95% CI 1.4-9, p = .009) were independently associated with obtaining >1 CT. CONCLUSION: An AFC on initial CT and persistent SIRS are associated with increased CT imaging in AIP patients. However, these additional CT scans did not change clinical management. PMID- 29017358 TI - Is there evidence for the added value and correct use of manual and automatically switching multimemory hearing devices? A scoping review. AB - OBJECTIVES: To review literature on the use of manual and automatically switching multimemory devices by hearing aid and CI recipients, and to investigate if recipients appreciate and adequately use the ability to switch between programmes in various listening environments. DESIGN: Literature was searched using PubMed, Embase and ISI/Web of Science. Additional studies were identified by screening reference and citation lists, and by contacting experts. STUDY SAMPLE: The search yielded 1109 records that were screened on title and abstract. This resulted in the full-text assessment of 37 articles. RESULTS: Sixteen articles reported on the use of multiple programmes for various listening environments, three articles reported on the use of an automatic switching mode. All studies reported on hearing aid recipients only, no study with CI recipients fulfilled the selection criteria. CONCLUSIONS: Despite the high number of manual and automatically switching multimemory devices sold each year, there are remarkably few studies about the use of multiple programmes or automatic switching modes for various listening environments. No studies were found that examined the accuracy of the use of programmes for specific listening environments. An automatic switching device might be a solution if recipients are not able, or willing, to switch manually between programmes. PMID- 29017357 TI - Automated hexahedral meshing of knee cartilage structures - application to data from the osteoarthritis initiative. AB - We propose a fully automated methodology for hexahedral meshing of patient specific structures of the human knee obtained from magnetic resonance images, i.e. femoral/tibial cartilages and menisci. We select eight patients from the Osteoarthritis Initiative and validate our methodology using MATLAB on a laptop computer. We obtain the patient-specific meshes in an average of three minutes, while faithfully representing the geometries with well-shaped elements. We hope to provide a fundamentally different means to test hypotheses on the mechanisms of disease progression by integrating our patient-specific FE meshes with data from individual patients. Download both our meshes and software at http://im.engr.uconn.edu/downloads.php . PMID- 29017359 TI - Antenatal scoring system in predicting the success of planned vaginal birth following one previous caesarean section. AB - This was a prospective observational study to determine the predictive factors for a successful vaginal birth after caesarean section (VBAC) and to develop a relevant antenatal scoring system. Patients with one previous caesarean section were included in this study. All data including maternal demographics, obstetric history, pregnancy progress and outcomes were collected and analysed. A total of 142 out of the 186 women (76.3%) had successful VBAC. History of previous vaginal delivery and non-recurrent indications for previous caesarean section were the significant predictive factors for a successful VBAC. Five variables for our scoring tool were selected. By using a proposed mean score of 4 out of 7, the scoring system had a sensitivity of 81.0%, specificity of 52.3% and a positive predictive value of 84.6%. VBAC antenatal scoring system was potentially a useful predictive tool in antenatal counselling. Impact statement What is already known on this subject: Planned vaginal birth after caesarean section (VBAC) is an important strategy to limit the overall caesarean section rate, which is related to maternal morbidities. However, trial of vaginal delivery does involve potential complications including scar dehiscence, postpartum haemorrhage and emergency hysterectomy. What the results of this study add: Clinical predictors of a successful VBAC include non-recurrent indications for the previous caesarean section, previous vaginal delivery, spontaneous onset of labour and birthweight less than 4kg. There were multiple screening tools developed to predict the likelihood of successful VBAC. These scoring systems involved various variables such as age, ethnicity, Bishop's score and previous caesarean indication. We had prospectively developed an antenatal scoring system based on five variables. Our result showed that patient with a score of four and above will have around 85% chance of successful VBAC. What the implications are of these findings for clinical practice and/or further research: We have also found that, estimated foetal weight based on ultrasound scan is a potential predictor for successful VBAC. This simple scoring method will be useful in-patient counselling regarding mode of delivery after one previous caesarean section. A multicentre study involving large cohort of patients is ideal to validate our scoring system. PMID- 29017360 TI - Cognitive emotion regulation strategies and mental health problems in war affected youth in Northern Uganda: findings from the WAYS study. AB - BACKGROUND: Cognitive emotion regulation strategies (CERS) have been shown to moderate the influence of War Experiences (WE) on mental health problems. AIMS: This study assessed the influence of WE and use of specific CERS on mental health problems among war-affected youth in Northern Uganda. METHODS: Five hundred and thirty-nine participants in an ongoing war-affected youth study (WAYS) were assessed by locally developed measures. CERS were measured by Cognitive Emotion Regulation Questionnaire (CERQ). Multiple regressions were used to assess independent effects of gender, WE, and CERS on mental problems and their potential interaction. RESULTS: Gender, WE and all CERS except positive refocussing and reappraisal had significant independent main effects on symptoms of depression while only WE, self-blame and blaming others had significant main effects on conduct problems. The interaction terms of WE and coping strategies of rumination, catastrophizing, and self-blame significantly predicted symptoms of depression/anxiety while only the interaction between WE and blaming others predicted conduct problems. In contrast, putting into perspective and planning negatively predicted symptoms of depression/anxiety. CONCLUSIONS: Interventions to reduce mental health problems should target coping strategies, especially adaptive strategies to youth in many post-conflict settings in Africa. PMID- 29017362 TI - Association between uncoupling protein 2, adiponectin and resting energy expenditure in obese women with normal and low resting energy expenditure. AB - Obesity is recognized as the most prevalent metabolic disease worldwide. Decreases in energy expenditure may increase risk of obesity. One of the key regulators of energy balance is uncoupling protein2 (UCP2), a transporter protein presents in mitochondrial inner membrane. Moreover, adiponectin is the most abundant adipocytokine, it may play a role in energy metabolism and gene expression of UCP2. The aim of this study was to investigate potential associations between the level of uncoupling protein 2 and adiponectin and their relationship with REE (Resting Energy Expenditure) in obese women with normal and low resting energy expenditure. A total of 49 subjects (women, 25-50 years old), were included in current study, 16 subjects with BMI > 30 and low resting energy expenditure, 17 subjects with BMI > 30 and normal resting energy expenditure and 16 non-obese subjects as a control group. Anthropometric, body composition parameters and resting energy expenditure were measured. Plasma adiponectin, UCP2 protein and total protein in PBMC were determined. Measured resting energy expenditure in obese subjects with low REE was significantly lower than other groups. Plasma adiponectin in the obese subjects with low REE was significantly lower compared to normal weight group. There was a significant relationship between 'UCP2 protein/Total protein' ratio and plasma adiponectin in obese group with low REE and in three groups when we pooled. There was a significant association between REE and plasma adiponectin in three groups when we pooled. There was a significant association between plasma adiponectin and REE. Moreover, there was a significant relationship between UCP2 and REE. PMID- 29017361 TI - Haptic-assistive technologies for audition and vision sensory disabilities. AB - PURPOSE: The aim of this review is to analyze haptic sensory substitution technologies for deaf, blind and deaf-blind individuals. METHOD: The literature search has been performed in Scopus, PubMed and Google Scholar databases using selected keywords, analyzing studies from 1960s to present. Search on databases for scientific publications has been accompanied by web search for commercial devices. Results have been classified by sensory disability and functionality, and analyzed by assistive technology. Complementary analyses have also been carried out on websites of public international agencies, such as the World Health Organization (WHO), and of associations representing sensory disabled persons. RESULTS: The reviewed literature provides evidences that sensory substitution aids are able to mitigate in part the deficits in language learning, communication and navigation for deaf, blind and deaf-blind individuals, and that the tactile sense can be a means of communication to provide some kind of information to sensory disabled individuals. CONCLUSIONS: A lack of acceptance emerged from the discussion of capabilities and limitations of haptic assistive technologies. Future researches shall go towards miniaturized, custom-designed and low-cost haptic interfaces and integration with personal devices such as smartphones for a major diffusion of sensory aids among disabled. Implications for rehabilitation Systematic review of state of the art of haptic assistive technologies for vision and audition sensory disabilities. Sensory substitution systems for visual and hearing disabilities have a central role in the transmission of information for patients with sensory impairments, enabling users to interact with the not disabled community in daily activities. Visual and auditory inputs are converted in haptic feedback via different actuation technologies. The information is presented in the form of static or dynamic stimulation of the skin. Their effectiveness and ease of use make haptic sensory substitution systems suitable for patients with different levels of disabilities. They constitute a cheaper and less invasive alternative to implantable partial sensory restitution systems. Future researches are oriented towards the optimization of the stimulation parameters together with the development of miniaturized, custom-designed and low-cost aids operating in synergy in networks, aiming to increase patients' acceptability of these technologies. PMID- 29017363 TI - A survey on the use of topical steroids in patients treated for lichen sclerosus associated vulval squamous cell carcinoma. AB - Evidence suggests that lichen sclerosus (LS) is the primary aetiological factor for local vulval recurrence (LVR) in vulval squamous cell carcinoma (VSCC). The long-term application of topical corticosteroids is believed to prevent LVR. Patients treated for LS-associated VSCC at a gynaecological cancer centre were invited to complete a questionnaire to evaluate whether they are receiving corticosteroids. 55 of the 95 eligible patients (58%) completed the questionnaire; LS was treated in 69%, with steroids given to 84.2%. Most received steroids >3 months, but discontinued treatment once asymptomatic. An online survey was distributed to 313 British Gynaecological Cancer Society members to determine whether gynaecological oncologists prescribe corticosteroids for LS following VSCC surgery. 41 consultants (13.1%) completed the survey; 70.7% prescribe topical corticosteroids (potent/very potent in 79.3%), and 58.6% treat >1 year. Our findings demonstrate that patients are more likely to be given topical corticosteroids if symptomatic of LS. Furthermore, although treatment regimens vary, the majority of respondents advocate the use of very potent steroids and would support a tertiary chemopreventative trial. Impact statement What is already known on this subject: Local vulval recurrence (LVR) affects approximately one in four women who have received surgery for vulval squamous cell carcinoma (VSCC). What the results of this study add: Lichen sclerosus (LS), an inflammatory dermatosis, is recognised as the likely primary aetiological factor for LVR. Although there is evidence to suggest that long-term topical corticosteroid use in patients with residual LS may prevent LVR, the extent to which women were given topical steroids following surgery remains unclear. Our patient questionnaire evaluates if these patients are already receiving topical steroids, along with the strength of such steroids and duration of treatment. The consultant survey determines whether clinicians currently prescribe topical steroids following VSCC surgery, as well as the strength and duration of steroid therapy. What the implications are of these findings for clinical practice and/or further research: We aim to establish whether the gynaecological oncology community believe that long-term steroids may prevent LVR in women with LS associated VSCC and whether they would support and recruit to a multicentre tertiary chemopreventative trial. These findings could influence a future clinical trial and may alter the ongoing management of these women. PMID- 29017364 TI - Can patients safely be admitted to a ward after craniotomy for resection of intra axial brain tumors? AB - OBJECTIVE: We reviewed the safety of our practice of admitting patients who have undergone a craniotomy for resection of an intra-axial brain tumor to a floor bed instead of an ICU. We also tried to quantify the risk that patients electively admitted to the ICU would develop a problem that could not have been effectively managed on the ward. METHODS: A retrospective chart review was performed of both adult and pediatric patients who underwent craniotomy by the senior author for resection of an intra-axial brain tumor between January 2012 and December 2015. 413 patient charts were reviewed; 16 patients were omitted due to incomplete records. RESULTS: Four hundred twenty-one craniotomies (393 supratentorial, 28 infratentorial) were performed in 397 patients, 35 of whom were <18 years of age. Three hundred fifty-five patients (83%) were admitted to floor beds; 4 (1.1%) developed complications that required transfer to an ICU. None of the 4 died or had lasting disability. Sixty-six patients, 51 adults and 15 children, were admitted to the ICU after their operation. Twenty-five of these patients had an absolute indication for ICU admission: 9 required a ventilator, 14 had an EVD and 2 were medically unstable. Of the remaining 41, none developed a complication that would have required transfer to an ICU had they been on the ward. CONCLUSION: It is safe to admit almost all patients to a floor bed after craniotomy for intra-axial brain tumor resection. The risk of a catastrophic problem occurring after a 4 hour stay in the post anesthesia care unit is extremely low. Furthermore, even patients who are electively managed in an ICU are unlikely to develop problems that would lead to a worse outcome had they been in a floor bed. PMID- 29017365 TI - Is the presence of corpus callosum predictable in the first trimester? AB - Corpus callosum agenesis (CCA) is a clinical condition accompanied by various aneuploidy and genetic syndromes. We identified the development of the corpus callosum (CC) in 278 patients before 18 weeks of gestational age by visualising the pericallosal artery (PCA) in the callosal sulcus and changes in the lengths and ratios of the midbrain (MB) and falx (F), which suggested elevation of the third ventricle and thalamus due to CCA in the first trimester. We succeeded in visualising the path of the PCA in 273 patients. As expected, we observed an increase in the lengths of the MB and F throughout the pregnancies. The MB:F ratio was 0.5-0.6, and it was independent of gestational age. In all 278 patients, the MB:F ratio was <0.6 (95th percentile = 0.79). We observed the presence of the CC during anatomical screening at gestational weeks 18-24. Visualisation of the PCA path (98% sensitivity) and calculation of the MB:F ratio <95th percentile (0.79-100% sensitivity) had very high sensitivity that indirectly confirmed the presence of the CC in the first trimester of pregnancy. Impact statement What is already known on this subject: After reading the articles for detecting the absence of corpus callosum (CC) at first trimester with midbrain (MB) and falx (F) measurement by Lachmann et al. ( 2013 ) and visualising pericallosal artery (PCA) as an indirect sign of CC agenesis by Pati et al. ( 2012 ), we aimed to have a look for our records visualising PCA in callosal sulcus and measure MB-F, as well as their ratios for an indirect sign of 'presence' of CC at first trimester. What the results of this study add: In recent literature, it is not possible to find many articles suggesting the presence of CC between 11 and 13 weeks of gestation. Diaz-Guerrero et al. ( 2013 ) and Pati et al. ( 2012 ) has researched visualising PCA path. Lachmann et al. ( 2013 ) reported an article for MB and F measurements in early suspicion of CC agenesis. Our study will be the first article in visualising PCA path and measuring MB-F lengths as well as their ratios for 'presence' of CC with high sensitivity rates (98% and 100%). What are the implications of these findings for clinical practice and/or further research: This study encourages clinicians visualising PCA path and measure MB-F lengths when they will try to visualise repetitive times and see how it is an easy procedure when you get used to it. PMID- 29017366 TI - Income Disparities in the Association of the Medical Home With Child Health. AB - This study was a secondary data analysis of the 2011-2012 National Survey of Children's Health. Data were available for a nationally representative sample of 81 090 children. Multivariable logistic regression was used to model child health with the medical home while examining the effect modification of household income and controlling for sociodemographic characteristics. Overall, the medical home was significantly associated with "excellent/very good" child health for children regardless of household income. However, the association of the medical home with "excellent/very good" child health was significantly higher for children in households earning >200% FPL (federal poverty level) compared with <200% FPL (adjusted odds ratio [aOR] 2.13 [95% CI 1.80-2.52] vs aOR 1.46 [95% CI 1.24 1.71]; P < .01). This relationship was also found among children >400% FPL compared with children between 100% and 199% FPL (aOR 2.25 [95% CI 1.74-2.9 0] vs aOR 1.28 [95% CI 1.01-1.62]; P < .01). Therefore, while the medical home is associated with beneficial child health for most children, significant disparities by income exist. PMID- 29017368 TI - The burden of severe hypoglycemia in type 2 diabetes. AB - AIMS: More than 29 million people in the US have type 2 diabetes mellitus (T2DM), a chronic metabolic disorder characterized by a progressive deterioration of glucose control, which eventually requires insulin. Abnormally low levels of blood glucose, a feared side-effect of insulin treatment, may cause severe hypoglycemia (SHO), leading to emergency department (ED) admission, hospitalization, and long-term complications; these, in turn, drive up the costs of T2DM. This study's objective was to estimate the prevalence and costs of SHO related hospitalizations and their additional longer-term impacts on patients with T2DM using insulin. METHODS: Using Truven MarketScan claims, we identified adult T2DM patients using basal and basal-bolus insulin regimens who were hospitalized for SHO (inpatient SHO patients) during 2010-2015. Two comparison groups were defined: those with outpatient SHO-related encounters only, including ED visits without hospitalization (outpatient SHO patients), and those with no SHO- or acute hyperglycemia-related events (comparison patients). Lengths of stay and SHO-related hospitalization costs were estimated, and propensity score and inverse probability weighting methods were used to adjust for baseline differences across the groups to evaluate longer-term impacts. RESULTS: We identified 66,179 patients using basal and 81,876 patients using basal-bolus insulin, of which ~1.1% (basal) to 3.2% (basal-bolus) experienced at least one SHO-related hospitalization. Among those who experienced SHO (i.e. those in the inpatient and outpatient SHO groups), 27% (basal) and 40% (basal-bolus) experienced at least one SHO-related hospitalization. One-third of basal and about one-quarter of basal-bolus patients were admitted directly to the hospital; the remainder were first assessed or treated in the ED. Inpatient SHO patients using basal insulin stayed in the hospital, including time in the ED, for 2.8 days and incurred $6896 in costs; patients using basal-bolus insulin stayed in the hospital for 2.6 days and incurred costs of $5802. Forty-to-fifty percent of inpatient SHO patients were hospitalized again for SHO. Inpatient SHO patients using basal insulin incurred significantly higher monthly costs after their initial SHO-related hospitalization than patients in the other two groups ($2935 vs $1819 and $1638), corresponding to 61% and 79% higher monthly costs; patients using basal-bolus insulin also incurred significantly higher monthly costs than patients in the other groups ($3606 vs $2731 and $2607), corresponding to 32% and 38% higher monthly costs. LIMITATIONS: These analyses excluded patients who did not seek ED or hospital care when faced with SHO; events may have been miscoded; and we were not able to account for clinical characteristics associated with SHO, such as insulin dose and duration of diabetes, or unmeasured confounders. CONCLUSIONS: The burden associated with SHO is not negligible. Nearly one in three patients using only basal insulin and one in four patients using basal bolus regimens who experienced SHO were hospitalized at least once due to SHO. Not only did those patients incur the costs of their SHO hospitalization, but they also incurred at least $1,116 (62%) and $875 (70%) more per month than outpatient SHO or comparison patients. Reducing SHO events can help decrease the burden associated with SHO among patients with T2DM. PMID- 29017369 TI - The Success Rate of Neurology Residents in EEG Interpretation After Formal Training. AB - EEG is an important tool for neurologists in both diagnosis and classification of seizures. It is not uncommon in clinical practice to see patients who were erroneously diagnosed as epileptic. Most of the time incorrect interpretation of EEG contributes significantly to this problem. In this study, we aimed to investigate the success rate of neurology residents in EEG interpretation after formal training. Eleven neurology residents were included in the study. Duration of EEG training (3 vs 4 months) and time since completion of EEG education were determined. Residents were randomly presented 30 different slides of representative EEG screenshots. They received 1 point for each correct response. The effect of training duration and time since training were investigated statistically. Besides, we looked at the success rate of each question to see whether certain patterns were more readily recognized than others. EEG training duration ( P = .93) and time since completion of training ( P = .16) did not influence the results. The success rate of residents for correct responses was between 17% and 50%. On the other hand, the success rate for each question varied between 0% and 91%. Overall, benign variants and focal ictal onset patterns were the most difficult to recognize. On 13 occasions (6.5%) nonepileptiform patterns were thought to represent epileptiform abnormalities. After formal training, neurology residents could identify <=50% of the EEG patterns correctly. The wide variation in success rate among residents and also between questions implies that both personal characteristics and inherent EEG features influence successful EEG interpretation. PMID- 29017370 TI - Valorization of raw materials from agricultural industry for astaxanthin and beta carotene production by Xanthophyllomyces dendrorhous. AB - Waste deriving from food and agro-industries is a growing problem in our modern society. In order to reduce food waste and its associated impacts over the environment and public health, innovative strategies for the conversion of food wastes in added value products are studied. Whey is one of the prominent waste deriving from Sicilian diary industry. The growth and the carotenoid biosynthesis of the yeast Xanthophyllomyces dendrorhous by its cultivation in pre-treated whey were studied. The study showed the possibility of increasing the astaxanthin productivity from X. dendrorhous in a batch fermentative process under continuous illumination. Our work is focused on the importance of carotenogenesis by X. dendrorhous on whey for the economic and ecological aspect. The results obtained in the study provide useful information about the possible use of this waste material for carotenogenesis from X. dendrorhous. PMID- 29017371 TI - Cytarabine and daunorubicin for the treatment of acute myeloid leukemia. AB - INTRODUCTION: Acute myeloid leukemia (AML) is the most common acute forms of leukemia in adults. It has a poor long-term survival with a high relapse rate and at relapse, is commonly resistant to available therapies. The current combination of daunorubicin (DNR) for three days and cytarabine (Ara-C) as a continuous infusion for seven days, more commonly known as '3 + 7' has remained essentially unaltered over the last forty-four years and remains the standard induction regimen internationally. Areas covered: This paper will briefly review clinically important trials related to '3 + 7'. Somatic mutations in AML that are linked to chemoresistance to '3 + 7'will be discussed. Other topics covered include the novel ratiometric agent containing daunorubicin and cytarabine, CPX-351, and midostaurin in FLT3 mutated AML. Expert opinion: '3 + 7' continues to be the backbone of therapy for AML. However, genetic risk stratification should be used to determine patients who are unlikely to respond to standard intensive chemotherapy and hence, should be enrolled onto a clinical trial upfront. This will facilitate development of newer effective treatment strategies in AML. Patients with mutations that are associated with chemoresistance should be offered therapies which may circumvent or overcome these pathways. PMID- 29017372 TI - The antidepressant-like activity of ellagic acid and its effect on hippocampal brain derived neurotrophic factor levels in mouse depression models. AB - The aim of present study was to evaluate the antidepressant-like activity of ellagic acid (EA) in mice-forced swim test (FST) and tail suspension test (TST) and the possible role of brain-derived neurotrophic factor (BDNF) in EA's antidepressant-like effect. We found that EA and sertraline did not affect the spontaneous locomotor activity of mice. EA produced statistically significant decrease in immobility time as compared to vehicle group in TST. EA at 1 and 5 mg/kg doses did not produce any significant effect in immobility time as compared to vehicle group in FST. But EA produced significantly reduced immobility time at 2.5 mg/kg dose. EA treatment increased hippocampal BDNF level. This study demonstrates that EA is able to produce antidepressant-like effect in both TST and FST in mice. Moreover, the antidepressant-like effects of EA seems to be mediated by increased BDNF level in mice hippocampus. PMID- 29017373 TI - Clinical considerations for use of insulin degludec/insulin aspart in Japanese patients. AB - INTRODUCTION: Co-formulation of basal and bolus insulin components provides a simpler regimen for patients with type 2 diabetes than separate basal-bolus treatment. However, conventional premixed insulin products include a suboptimal protaminated basal component that requires resuspension prior to injection. Insulin degludec/insulin aspart (IDegAsp) is the first soluble co-formulation of a basal insulin with an ultra-long duration of action (IDeg) and a rapid-acting bolus insulin (IAsp) in a single injection. Areas covered: In this review, the authors summarize findings from pre-clinical studies and the clinical trial program and provide guidance for the initiating and switching of IDegAsp in different patient populations. Pharmacodynamic analyses have revealed a rapid onset of action and distinct peak (IAsp), followed by a separate, flat and stable basal effect (IDeg component). Phase 3 studies have demonstrated the efficacy and safety of IDegAsp, with greater glycemic improvements than basal-only therapy in international and Japanese type 2 diabetes populations. IDegAsp also results in reduced insulin dose requirements and lower rates of hypoglycemia than premixed insulin. Expert opinion: IDegAsp provides a simple and effective insulin regimen in appropriately selected Japanese patients, with the flexibility to suit individual needs. The benefits of IDegAsp over conventional insulin regimens might help tackle clinical inertia with insulin intensification. PMID- 29017374 TI - Prevalence of Sexually Transmitted Infections and Their Risk Factors among Female Sex Workers in Isfahan, Iran: A Cross-Sectional Study. AB - OBJECTIVES: Female sex workers (FSWs) are at high risk of sexually transmitted infections (STIs) and form a core group to facilitate STI spreading. We aimed to estimate the prevalence of STIs among FSWs who attended Female Harm Reduction Center of Isfahan, Iran, and to determine the association between risky behaviors and STIs. STUDY DESIGN: In a cross-sectional study, 99 FSWs were recruited and interviewed about demographic characteristics and risky behaviors. A trained midwife examined FSWs for genital ulcer, abnormal vaginal discharge, and cervicitis. Urine and genital specimens were collected and real-time polymerase chain reaction was performed to diagnose Neisseria gonorrhoeae, human papilloma virus (HPV), and Trichomonas Vaginalis. Data were analyzed via chi2 test and logistic regression in StataCorp software (version 11) with 95% confidence interval. RESULTS: Totally, 84.9% of FSWs reported STI symptoms, while 12.1% of them were infected with N gonorrhoeae, HPV, or T vaginalis. Human papilloma virus and gonorrhea prevalence rates were 5.7% and 8% in FSWs with STI-associated symptoms. Sexually transmitted infections showed significant association with duration of prostitution (odds ratio [OR]HPV = 1.009 [95% confidence interval [95% CI: 1.004-1.01]; ORgonorrhea = 1.01 [95% CI: 1.00-1.01]) and condom usage (ORHPV = 0.11 [95% CI: 0.012-0.98]; ORgonorrhea = 0.04 [95% CI: 0.005-0.33]). CONCLUSION: Due to the literature gap on the Iranian FSWs' sexual health and the intense stigma around this subject, in Iran, our results would be useful for developing an efficient intervention program. The prevalence of STIs in Isfahan FSWs can be controlled with programs such as consistent condom use and STI treatment. In addition, as just one-tenth of FSWs with an STI symptom were positive for an STI, symptomatic diagnosis of STIs might be insufficient. PMID- 29017375 TI - HIV Nurse Navigation: Charting the Course to Improve Engagement in Care and HIV Virologic Suppression. AB - This study represents one of the few exploring the effectiveness of an integrated HIV nurse navigation program on engagement and virologic outcomes. A navigator provided individualized care management (eg, pillbox renewals), intensive outreach, and collaboration with existing support systems (eg, families, community programs). Clinical data from the Veterans Affairs (VA) Medical Center site of a longitudinal, observational study of HIV in the District of Columbia (DC) cohort were used for comparison (N = 706). Navigation patients (n = 84) were less likely to have permanent housing, and more likely to be disabled, have detectable viral load, comorbid depressive, and substance use disorders. Navigation patients showed improvements in clinic visits (doubled), rate of medication renewal (40.91% to 80.61%), CD4 count and CD4%, and viral rates of Veterans with <200 copies/mL increased from 47.6% to 69.0% after one year. Integration of nurse navigation into a HIV primary care setting shows promise in improving engagement and virologic suppression in a high-risk population. PMID- 29017376 TI - Bilateral Multiple Mammary Myofibroblastomas in an Adult Male. PMID- 29017377 TI - Early maladaptive schemas in patients with bipolar and unipolar disorder. AB - OBJECTIVE: The aim of our study is to determine the difference between the bipolar disorder, unipolar disorder and control groups in terms of maladaptive schemes and childhood trauma. METHODS: Two groups of patients under monitoring with a diagnosis of bipolar or unipolar disorder and one group of healthy controls were enrolled in this study. Each group consisted of 60 subjects. The Young Mania Rating Scale and Beck Depression Inventory were used to confirm that patients were in remission. The Childhood Trauma Questionnaire and Young Schema Questionnaire-Short Form 3 were used to identify childhood traumas and early maladaptive schemas. RESULTS: In bipolar disorder, a positive, low power correlation was observed between the vulnerability to threats schema and emotional, physical and sexual abuse. In the unipolar disorder group, there was a positive, low power correlation between the emotional inhibition, failure, approval seeking, dependence, abandonment and defectiveness schemas and social isolation, and a positive, moderate correlation between social isolation and emotional abuse. CONCLUSIONS: Individuals with bipolar disorder suffered greater childhood trauma compared to subjects with unipolar disorder and healthy individuals. Greater maladaptive schema activation were present in individuals with bipolar disorder compared to those with unipolar disorder and healthy individuals. PMID- 29017378 TI - Optimizing Human Induced Pluripotent Stem Cell Expansion in Stirred-Suspension Culture. AB - Human induced pluripotent stem cells (hiPSCs) hold great hopes for application in regenerative medicine due to their inherent capacity to self-renew and differentiate into cells from the three embryonic germ layers. For clinical applications, a large quantity of hiPSCs produced in standardized and scalable culture processes is required. Several groups, including ours, have developed methodologies for scaled-up hiPSC production in stirred bioreactors in chemically defined medium. In this study, we optimized the critical steps and factors that affect hiPSC expansion and yield in stirred-suspension cultures, including inoculation conditions, seeding density, aggregate size, agitation rate, and cell passaging method. After multiple passages in stirred-suspension bioreactors, hiPSCs remained pluripotent, karyotypically normal, and capable of differentiating into all three germ layers. PMID- 29017379 TI - HLA-associated drug hypersensitivity and the prediction of adverse drug reactions. AB - Adverse drug reactions are an important cause of morbidity and mortality and constitute the leading reason of drug withdrawal from the market. Besides classical reactions that are related to pharmacologic activity of the drug, some reactions are unpredictable, not dose dependent, and seem to occur in genetically predisposed individuals. The majority of this reaction is immunologically driven and they are referred to as hypersensitivity reactions. A growing number of studies provided evidences that specific HLA alleles increase the risk of developing hypersensitivity drug reactions. In this context, drug hypersensitivities that have more robust pharmacogenetic data include abacavir hypersensitivity syndrome and severe cutaneous adverse reactions induced by allopurinol and carbamazepine. PMID- 29017380 TI - A "Collective Effort to Make Yourself Feel Better": The Group Process in Mindfulness-Based Interventions. AB - There is growing interest in mindfulness-based interventions (MBIs) in the management of multiple physical and mental health issues. Although MBIs utilize a group format, research on how this format impacts teaching and learning mindfulness is lacking. This study aimed to develop a detailed theory of MBI group processes utilizing a grounded theory methodology. This article presents our subsequent model, developed from semistructured interviews conducted with MBI students, teachers, and trainers ( N = 12). A core category, the group as a vessel on a shared journey, and three higher-order categories emerged from the data. They illustrate how MBI group processes navigate a characteristic path. Teachers build and steer the group "vessel" in a way that fosters a specific culture and sense of safety. The group is facilitated to share communal experiences that augment learning and enrich mindfulness practice. Limitations and implications for clinicians and researchers are discussed. PMID- 29017381 TI - Special focus issue on regenerative medicine in society: interdisciplinary perspectives (part I) - Foreword. PMID- 29017382 TI - Which factors are associated with the recurrence of endometrioma after cystectomy? AB - Endometrioma is the most common form of endometriosis and is a sign of wide spread disease in symptomatic patients. Medical treatment options can be successful in endometrioma smaller than 1 cm, but ineffective for growing and symptomatic endometriomas. Conservative surgical interventions that preserve fertility, such as laparoscopic removal or destruction of endometriotic tissue or aspiration of cystic content are typically used to treat the condition. One of the most frustrating aspects of endometrioma treatment is disease recurrence. The underlying mechanisms explaining recurrence are uncertain. Several risk factors have been evaluated in order to predict recurrence after cystectomy. In looking at the results overall, our study can conclude that the presence of greater cyst dimension, higher CA-125 level, presence of preoperative symptoms of non-cyclic pelvic pain, dysmenorrhoea and adhesion extension may be associated with recurrent endometrioma. In clinical practice, identification of risk factors for recurrence helps clinicians to inform patients. Impact statement What is already known on this subject: Endometrioma is the most common form of endometriosis and is a sign of wide-spread disease in symptomatic patients. One of the most frustrating aspects of endometrioma treatment is disease recurrence. Several risk factors have been evaluated in order to predict recurrence after cystectomy. However, the risk factors have not been precisely defined. What the results of this study add: This study aimed to investigate the contribution of possible risk factors to the recurrence of endometrioma after laparoscopic surgery. In looking at the results overall, our study can conclude that the presence of greater cyst dimension, higher CA-125 level, adhesion extension, presence of preoperative symptoms of non-cyclic pelvic pain and dysmenorrhoea may be associated with recurrent endometrioma. What the implications of these findings are for clinical practice and/or further research: In clinical practice, identification of risk factors for recurrence helps clinicians to inform patients. Detection of preoperative risk factors would be helpful in counselling patients on their future prognosis. This may also increase treatment success by providing accurate preoperative treatment planning and by assisting the scheduling of postoperative follow-ups. PMID- 29017383 TI - Acetabular labrum of hip joint in osteoarthritis: A qualitative original study and short review of the literature. AB - PURPOSE: Histological architecture of normal acetabular labrum regarding free nerve endings (FNEs) and mechanoreceptors (MRs) has been satisfactorily described in the literature. However, the presence of FNEs and MRs in acetabular labrum of hip joint has been analyzed only once in patients with osteoarthritis (OA). Aim of this article is to report histological distribution pattern of FNEs and MRs in acetabular labrum of patients with severe OA, at the same time conducting a comparison with normal acetabular labrum described in the literature. METHODS: Seven patients with severe hip OA were enrolled in this study. Patient selection was assisted by the utilization of specific clinical scales delineated by the American College of Rheumatology. After successful total hip arthroplasty, tissue samples of acetabular labra of seven patients were histologically processed and stained with the gold standard chloride method, which was subsequently examined under a compound microscope. RESULTS: FNEs and MRs constituted the major histological structures. Identified MRs included Pacini corpuscles, Ruffini corpuscles, and Golgi-Mazzoni corpuscles. The presence of FNEs was predominant in the middle part of the acetabular labrum, featuring a remarkable decrease in peripheral parts. In contrast, MRs were detected basically in peripheral parts and less in the middle part. CONCLUSIONS: Differentiation of the distribution pattern of MRs and FNEs in acetabular labrum of hip joint is remarkable between normal patients and patients with severe OA. The abundance of FNEs in the middle part of the pathologic labrum is mainly responsible for the observed discrimination. A "conversion" of MRs to FNEs may occur during OA progression, modulating therefore this pattern as well as the upcoming clinical manifestations. PMID- 29017384 TI - Leukocyte Cell-Derived Chemotaxin-2 Amyloidosis (ALECT2) in a Patient With Lung Adenocarcinoma: An Autopsy Report and Literature Review. AB - Amyloidosis caused by deposition of leukocyte cell-derived chemotaxin-2 amyloidosis (ALECT2) is the most recently described form of systemic amyloidosis and has quickly emerged as a common and possibly underdiagnosed cause of slowly declining renal function, particularly in patients of Hispanic ancestry. We describe the autopsy findings in a 70-year-old Hispanic woman who died of metastatic lung adenocarcinoma and was incidentally found to have extensive amyloid deposition in the kidneys, liver, spleen, adrenal glands, small intestine, gallbladder, lungs, bilateral ovaries, and uterus. The type of amyloid was confirmed to be ALECT2 by mass spectrometry. The pattern of amyloid deposition in the kidneys and the liver was typical for what has been described for ALECT2. In addition, a unique pattern of amyloid deposition was observed in spleen, adrenal glands, small intestine, gallbladder, lungs, ovaries, and uterus. The pattern of amyloid deposition in ALECT2 is distinct from amyloid A and amyloid light-chain and needs to be recognized to avoid misdiagnosis as amyloid light-chain or amyloid A amyloidosis. After recognition, an accurate diagnosis by mass spectrometry and/or immunohistochemical staining is essential to guide treatment and avoid toxic therapies. PMID- 29017385 TI - Patient satisfaction in the long-term effects of Eustachian tube balloon dilation is encouraging. AB - OBJECT: To investigate the long-term effects of balloon Eustachian tuboplasty (BET) from patient's perspective and to discover which symptoms of Eustachian tube dysfunction (ETD) benefit the most from BET. METHOD: We designed a retrospective postal questionnaire based on the seven-item ETD questionnaire (ETDQ-7). Our questionnaire covered the severity of present ETD symptoms in comparison with the preoperative situation, the severity of current overall ear symptoms, and possible surgical interventions after BET. Forty-six patients treated in our institution between 2011 and 2013 fulfilled the inclusion criteria and 74% (34 patients; total 52 ears treated with BET) returned the questionnaire with a mean follow-up time of 3.1 years (range 1.8-4.6 years). RESULTS: Pain in the ears, feeling of pressure in the ears, and feeling that ears are clogged had reduced in 75% of the ears that suffered from these symptoms preoperatively. Seventy-seven percent of all the responders felt that their overall ear symptoms were reduced. Altogether, 82% of all the patients stated that they would undergo BET again if their ear symptoms returned to the preoperative level. CONCLUSION: Patient satisfaction in the long-term effects of BET is encouraging. These results may help clinicians in preoperative patient selection and counselling. PMID- 29017386 TI - A peri-urethral mass - what are the possible diagnoses? PMID- 29017387 TI - Concentration-dependent protein adsorption at the nano-bio interfaces of polymeric nanoparticles and serum proteins. AB - AIM: A comprehensive understanding of nanoparticle (NP)-protein interaction (protein corona formation) is required. So far, many factors influencing this interaction have been investigated, like size and zeta potential. However, NPs exposure concentration has always been ignored. Herein, we aim to disclose the correlation of NPs exposure concentration with protein adsorption. MATERIALS & METHODS: Four polymeric NPs systems possessing similar sizes (230 +/- 20 nm) but varied zeta potentials (-30 ~ +40 mv) were prepared. Physicochemical properties and protein adsorption upon NP-protein interaction were characterized. RESULTS: Protein adsorption capacity and adsorbed protein types were NPs concentration dependent. CONCLUSION: Considering the critical impacts of protein adsorption on NPs delivery, our work could be an urgent warning about the possible risks of dosage adjustment of nanoformulations. PMID- 29017388 TI - Pathophysiological Bases of Comorbidity: Traumatic Brain Injury and Post Traumatic Stress Disorder. AB - The high rates of traumatic brain injury (TBI) and post-traumatic stress disorder (PTSD) diagnoses encountered in recent years by the United States Veterans Affairs Healthcare System have increased public awareness and research investigation into these conditions. In this review, we analyze the neural mechanisms underlying the TBI/PTSD comorbidity. TBI and PTSD present with common neuropsychiatric symptoms including anxiety, irritability, insomnia, personality changes, and memory problems, and this overlap complicates diagnostic differentiation. Interestingly, both TBI and PTSD can be produced by overlapping pathophysiological changes that disrupt neural connections termed the "connectome." The neural disruptions shared by PTSD and TBI and the comorbid condition include asymmetrical white matter tract abnormalities and gray matter changes in the basolateral amygdala, hippocampus, and prefrontal cortex. These neural circuitry dysfunctions result in behavioral changes that include executive function and memory impairments, fear retention, fear extinction deficiencies, and other disturbances. Pathophysiological etiologies can be identified using experimental models of TBI, such as fluid percussion or blast injuries, and for PTSD, using models of fear conditioning, retention, and extinction. In both TBI and PTSD, there are discernible signs of neuroinflammation, excitotoxicity, and oxidative damage. These disturbances produce neuronal death and degeneration, axonal injury, and dendritic spine dysregulation and changes in neuronal morphology. In laboratory studies, various forms of pharmacological or psychological treatments are capable of reversing these detrimental processes and promoting axonal repair, dendritic remodeling, and neurocircuitry reorganization, resulting in behavioral and cognitive functional enhancements. Based on these mechanisms, novel neurorestorative therapeutics using anti-inflammatory, antioxidant, and anticonvulsant agents may promote better outcomes for comorbid TBI and PTSD. PMID- 29017389 TI - The Canadian laboratory initiative on pediatric reference intervals: A CALIPER white paper. AB - Laboratory investigations provide physicians with objective data to aid in disease diagnosis, clinical decision making, and patient follow up. Clinical interpretation of laboratory test results relies heavily on the availability of appropriate population-based reference intervals (i.e. normative values) or decision limits developed through clinical outcome studies. Although reference intervals are fundamental to accurate laboratory test interpretation, and thus critically important to healthcare, the need for sound evidence-based reference intervals has been largely overlooked, particularly in the pediatric population. In the field of pediatric laboratory medicine, accurate age- and sex-specific reference intervals established using samples from healthy children and adolescents have not been readily available, forcing many clinical laboratories to report adult reference intervals with pediatric test results. When pediatric reference intervals are available, they have often been established with a small sample size, inpatient or outpatient samples, outdated methodologies, and/or inappropriate statistical procedures. To address these unacceptable limitations, several national and global initiatives have begun to close the critical evidence gaps in pediatric reference intervals. Notably, the Canadian Laboratory Initiative on Pediatric Reference Intervals (CALIPER) has made significant strides towards improving pediatric healthcare in Canada and globally. The present report is a white paper summarizing CALIPER, and provides a comprehensive compendium of the data generated through this project over the past decade as a single resource for clinical laboratory specialists, clinicians, and other healthcare workers. CALIPER launched an outreach campaign in 2008 to recruit healthy community children and adolescents, and developed a robust statistical algorithm, in accordance with the Clinical and Laboratory Standards Institute (CLSI) guidelines, to develop accurate age- and sex-specific pediatric reference intervals. The first CALIPER direct reference interval study was published in 2012, with age- and sex-specific reference intervals reported for 40 common biochemical markers. To date, CALIPER has collected health information and blood samples from over 9700 community children and adolescents, and has established a comprehensive database of age- and sex-specific reference intervals for over 100 biomarkers of pediatric disease. CALIPER has also performed a series of transference and verification studies to expand the applicability of the CALIPER database to five major analytical platforms, including Abbott, Beckman, Ortho, Roche, and Siemens. Through novel knowledge translation initiatives, the CALIPER Reference Interval Database has been made freely available online ( www.caliperproject.ca ) as well as on a mobile application (CALIPER Reference App), and it is used by clinical laboratories across Canada, the United States, and globally. In addition to establishing this comprehensive pediatric reference interval database, CALIPER has also performed a series of sub-studies, including examining how reference intervals are affected by pre-analytical factors (i.e. sample stability at specific storage conditions, fasting status and time of sample collection), biological variation (i.e. intraindividual and interindividual biological variation, reference change values), and ethnicity and pubertal development stage. In this white paper, extensive tables of pediatric reference intervals are provided for easy reference for clinical laboratories worldwide. All data reported have been published in over 20 peer reviewed publications and are also available through the CALIPER Reference Interval Database as well as the CALIPER Reference App for mobile devices. PMID- 29017390 TI - Pharmacokinetics of praziquantel and pyrantel pamoate combination following oral administration in cats. AB - Objectives The pharmacokinetics of praziquantel and pyrantel pamoate has never been reported in cats. The present study was designed to establish the plasma concentration-time profile and to derive pharmacokinetic data for a combined formulation of praziquantel and pyrantel in cats, after a single, oral administration. Methods Twenty-two clinically healthy adult cats were used, each receiving a single oral dose of praziquantel (8.5 mg/kg) and pyrantel (100 mg/kg). Blood samples were collected at regular time points up to 48 h post dosing. Plasma concentrations of praziquantel and pyrantel were measured using a liquid chromatography-mass spectrometry-high-throughput screening method. Results Clinical examination of all cats did not reveal any side effects after oral administration of these medications. The terminal half-life for praziquantel and pyrantel was 1.07 and 1.36 h, respectively. Praziquantel peak concentration (Cmax) was 1140 MUg/ml, reached at 1.22 h. The plasma concentrations of pyrantel after oral administration were low with a mean Cmax of 0.11 MUg/ml, reached at a Tmax of 1.91 h. Pyrantel showed a very limited absorption as pamoate salt, suggesting permanence and efficacy inside the gastrointestinal tract, where the adult stages of most parasitic nematodes reside. Conclusions and relevance Pyrantel showed a very limited absorption as pamoate salt. Praziquantel was rapidly absorbed following oral administration and the concentrations achieved suggest that praziquantel could be an effective and safe medication in cats. Although some resistance problems are arising as a result of their long use, these anthelminthic products can still play a major role in parasitic control, especially in geographical areas where the high cost of newer treatments or necessity of parenteral administration could decrease the number of treated animals. PMID- 29017391 TI - Friends With Performance Benefits: A Meta-Analysis on the Relationship Between Friendship and Group Performance. AB - The current article examines if, and under which conditions, there exists a positive relationship between working with friends and group performance. To do so, using data from 1,016 groups obtained from 26 studies, we meta-analyzed comparisons of the performance of friendship groups versus acquaintance groups. Results show that friendship has a significant positive effect on group task performance (Cohen's d = 0.31). Furthermore, this relationship was moderated by group size (i.e., the positive effect of friendship on performance increased with group size) and task focus (i.e., friendship groups performed better than acquaintance groups on tasks requiring a high quantity of output, whereas there was no performance benefit on tasks requiring a single or high-quality output). These results help to reconcile mixed findings and illustrate when friendship groups are more likely to perform better than acquaintance groups. PMID- 29017392 TI - A new chromosomal arrangement due to paternal balanced translocation for syndromic oesophageal atresia: case report. PMID- 29017393 TI - Expression of hsa-let-7b-5p, hsa-let-7f-5p, and hsa-miR-222-3p and their putative targets HMGA2 and CDKN1B in typical and atypical carcinoid tumors of the lung. AB - Typical and atypical carcinoid tumors belong to the neuroendocrine lung tumors. They have low recurrence and proliferation rate, lymph node, and distant metastases. Nevertheless, these tumors have shown a more aggressive behavior. In the last years, microRNAs were screened as new tumor markers for their potential diagnostic and therapeutic relevance. The expression of hsa-let-7b-5p, hsa-let-7f 5p, hsa-miR-222-3p, and their targets HMGA2 (high-mobility group A2) and CDKN1B (cyclin-dependent kynase inhibitor 1B, p27kip1) was evaluated in this rare small group of patients. We analyzed the clinical data of all typical and atypical carcinoid tumors of patients who underwent surgical operation at Marburg University Hospital (n = 18) from 2000. Quantitative reverse transcription polymerase chain reaction was performed in formalin-fixed paraffin-embedded tumor tissue versus four tumor-free lung tissue samples. HMGA2 was stable or downregulated; only one patient showed a significant overexpression. CDKN1B showed a significant overexpression or a stable level; it was downregulated in two samples only. Hsa-miR-222-3p resulted almost stable or overexpressed except for two samples (significantly downregulated). Hsa-let-7f-5p was stable or overexpressed in the majority of analyzed samples, whereas hsa-let-7b-5p was significantly downregulated. HMGA2 and CDKN1B are differently expressed between atypical and typical carcinoid tumors, thus representing valid biomarkers for the classification of the two tumor groups. Hsa-let-7f-5p and HMGA2 are inversely correlated. Hsa-miR-222-3p does not correlate with its predicted target CDKN1B. PMID- 29017394 TI - A preliminary study of gut dysbiosis in children with food allergy. AB - Gut microbiota of food allergic children was analyzed by high throughput 16S rRNA gene sequencing. Signs of gut dysbiosis, which is likely associated with gut inflammation, was observed in children with food allergies. For example, decreased abundance of genus Akkermansia but increased abundance of Veillonella was found in children with food allergy in comparison with healthy control children. PMID- 29017395 TI - Electrical support during outdoor cycling in patients with coronary artery disease: impact on exercise intensity, volume and perception of effort. AB - BACKGROUND: Electrical assisted bicycles (EAB's) could be used to overcome barriers and difficulties to outdoor cycling and thus assist in achieving a sufficient physical activity level in coronary artery disease (CAD) patients, but it is unknown whether sufficient exercise intensities and volumes could be elicited during cycling on EAB's. In this study we examined, for the first time, the acute physiological impact of electrical support during outdoor cycling in CAD patients (ISRCTN32238279). METHODS: Fifteen CAD patients (13 males), aged 64 +/- 7 years executed a maximal cardiopulmonary exercise test and afterwards cycled a predefined outdoor route of 10 km, in three different conditions: classical cycling (no support), EAB with low support (EABlow) and high support (EABhigh). Oxygen uptake (VO2) and carbon dioxide output (VCO2) was measured continuously by a portable gas-analysing system. Cycling time was recorded and ratings of perceived exertion (RPE) was assessed at 3 and 7 km. RESULTS: Mean VO2 during EABhigh (1721 +/- 537 ml*min-1) was significantly lower compared to EABlow (1890 +/- 619 ml*min-1, p < .05), but no differences were found between EABlow and classical cycling (1846 +/- 523 ml*min-1). EABlow and EABhigh elicited a sufficient volume and intensity (6.6 +/- 2.0 MET's (74 +/- 6% VO2peak) and 6.0 +/ 1.8 MET's (68 +/- 7% VO2peak), respectively) to adhere to the guidelines for secondary prevention in CAD. RPE was significantly lower p < .05) during EABhigh (9 +/- 2), than during EABlow (11 +/- 2) or classical cycling (11 +/- 2). CONCLUSIONS: Outdoor cycling with electrical support leads to a sufficiently high exercise intensity and volume in CAD patients, and may be considered as an alternative exercise modality. PMID- 29017396 TI - Influence of awareness and availability of medical alternatives on parents seeking paediatric emergency care. AB - AIMS: Direct seeking of care at paediatric emergency departments may result from an inadequate awareness or a short supply of medical alternatives. We therefore evaluated the care-seeking patterns, availability of medical options and initial medical assessments - with overall reference to socioeconomic status - of parents at an urban paediatric emergency department in a Scandinavian country providing free paediatric healthcare. METHODS: The parents of children assessed by paediatric emergency department physicians at a Swedish university hospital over a 25-day winter period completed a questionnaire on recent medical contacts and their reasons for attendance. Additional information was obtained from ledgers, patient records and population demographics. RESULTS: In total, 657 of 713 eligible patients (92%) were included. Seventy-nine per cent of their parents either failed to or managed to establish medical contact before the emergency department visit, whereas 21% sought care with no attempt at recent medical contact. Visits with a failed telephone or primary care contact (18%) were more common outside office hours ( p=0.014) and were scored as less urgent ( p=0.014). A perceived emergency was the main reason for no attempt at medical contact before the visit. Direct emergency department care-seeking was more common from the city district with the lowest socioeconomic status ( p=0.027). CONCLUSIONS: Although most parents in this Swedish study tried to seek medical advice before attending a paediatric emergency department, perceived emergency, a short supply of telephone health line or primary care facilities and lower socioeconomic status contributed to direct care-seeking by almost 40% of parents. Pre-hospital awareness and the availability of medical alternatives with an emphasis on major differences in socioeconomic status should therefore be considered to further optimize care-seeking in paediatric emergency departments. PMID- 29017397 TI - Liver Scaffolds Support Survival and Metabolic Function of Multilineage Neonatal Allogenic Cells. AB - Organ scaffold bioengineering is currently limited by the inability to effectively repopulate the scaffold with appropriately distributed functional cells. We examined the feasibility of a decellularized liver scaffold to support the growth and function of multilineage allogenic cells derived from either adult or neonatal liver cells. Cell slurries from neonatal and adult rat livers containing hepatocytes, cholangiocytes, and endothelial cells were introduced into decellularized adult rat liver scaffolds via the bile duct. Recellularized grafts were perfused with cell growth medium through the portal vein for 7 days. Concurrently, the same cell slurries were incubated on culture dishes. Albumin levels were measured from graft perfusates and cell culture media. Immunofluorescent assays were used to verify the colocalization of cholangiocytes, hepatocytes, endothelial cells, and Kupffer cells in the recellularized grafts by using anti-CK7, anti-hepatocyte antigen, anti-CD34, and anti-CD68, respectively. More robust albumin production was detected in the perfusate of scaffolds recellularized with a neonatal liver cell slurry compared with those with an adult liver cell slurry. The perfusates from all recellularized grafts showed increasing albumin concentration over 7 days; higher levels were detected in the constructs compared with the cell culture. Scaffolds seeded with a neonatal liver cell slurry showed the presence of hepatocytes, cholangiocytes, endothelial cells, and Kupffer cells. Results demonstrated the superiority of neonatal allogenic cells over adult cells of the same origin, possibly because of their pluripotent behavior. Liver bio-scaffolds supported the growth of four different liver cell lines. Recellularized grafts exhibited preserved functionality as demonstrated by albumin production, and constructs seeded with a neonatal cell slurry demonstrated proliferation on Ki-67 assay, thus representing a promising model for a transplantable construct. PMID- 29017398 TI - An enzymatic method for the production of 6-oxohexanoic acid from 6-aminohexanoic acid by an enzyme oxidizing omega-amino compounds from Phialemonium sp. AIU 274. AB - An enzymatic method for 6-oxohexanoic acid production was developed using 6 aminohexanoic acid and an omega-amino group-oxidizing enzyme (omega-AOX) from Phialemonium sp. AIU 274. 6-Oxohexanoic acid was produced from 6-aminohexanoic acid with 100% yield by incubation with 0.3 U of the omega-AOX and 20 U of catalase at 30 degrees C for 30 h in 0.1 M potassium phosphate buffer (pH 7.0). PMID- 29017399 TI - Recombinant expression, purification, and characterization of polyphenol oxidase 2 (VvPPO2) from "Shine Muscat" (Vitis labruscana Bailey * Vitis vinifera L.). AB - Polyphenol oxidases (PPOs) catalyze browning reactions in various plant organs, therefore controlling the reactions is important for the food industry. PPOs have been assumed to be involved in skin browning of white grape cultivars; however, the molecular mechanism underlying PPO-mediated browning process remains elusive. We have recently identified a new PPO gene named VvPPO2 from "Shine Muscat" (Vitis labruscana Bailey * V. vinifera L.), and have shown that the gene is transcribed at a higher level than the previously identified VvPPO1 in browning, physiologically disordered berry skins at the maturation stage. In this study, we expressed VvPPO2 in Escherichia coli and, using the purified preparation, revealed unique physicochemical characteristics of the enzyme. Our study opens up a way to not only understand the berry skin browning process but also to elucidate the enzymatic maturation process of grape PPOs. PMID- 29017400 TI - Case report: Minimally invasive method to activate the expiratory muscles to restore cough. AB - CONTEXT: Spinal cord stimulation (SCS) via disc electrodes surgically placed via laminotomy incisions has been shown to restore an effective cough in subjects with spinal cord injury (SCI). The purpose of this study was to evaluate a new method of expiratory muscle activation utilizing spinal cord wire leads, which can be implanted with minimally invasive techniques. METHODS: In a subject with SCI, parallel wire leads with two electrode contacts were inserted percutaneously through a needle, advanced to the T9, T11 spinal levels and connected to an implanted radiofrequency receiver. Stimulus parameters were set at values resulting in near maximum airway pressure generation (Paw) (40V, 50Hz, 0.2ms). Paw was measured at functional residual capacity (FRC) and total lung capacity (TLC) as an index of expiratory muscle strength. RESULTS: Paw during spontaneous efforts was 20 cmH2O (8.6% predicted). Bipolar (T9-T11) SCS resulted in Paw of 84 and 103 cmH2O, at FRC and TLC respectively. Monopolar (T9 only) SCS resulted in Paw of 61 and 86 cmH2O, at FRC and TLC respectively. This subject experienced much greater ease in raising secretions with use of SCS and no longer required other methods of secretion management. CONCLUSION: SCS via wire leads, which can be implanted using minimally invasive techniques, may provide a new useful method to restore an effective cough and possibly reduce the morbidity and mortality associated with respiratory tract infections in patients with SCI. PMID- 29017401 TI - Helminthosporic acid functions as an agonist for gibberellin receptor. AB - Helminthosporol was isolated from a fungus, Helminthosporium sativum, as a natural plant growth regulator in 1963. It showed gibberellin-like bioactivity that stimulated the growth of the second leaf sheath of rice. After studying the structure-activity relationship between the compound and some synthesized analogs, it was found that helminthosporic acid (H-acid) has higher gibberellin like activity and chemical stability than helminthosporol. In this study, we showed that (1) H-acid displays gibberellin-like activities not only in rice but also in Arabidopsis, (2) it regulates the expression of gibberellin-related genes, (3) it induces DELLA degradation through binding with a gibberellin receptor (GID1), and (4) it forms the GID1-(H-acid)-DELLA complex to transduce the gibberellin signal in the same manner as gibberellin. This work shows that the H-acid mode of action acts as an agonist for gibberellin receptor. PMID- 29017402 TI - Validation of two versions of the Warwick-Edinburgh Mental Well-Being Scale among Norwegian adolescents. AB - AIM: This study aimed to examine the psychometric properties of the original 14 item version of the Warwick-Edinburgh Mental Well-Being Scale (WEMWBS) and the short 7-item version (SWEMWBS) to validate these scales for use among Norwegian adolescents. METHOD: Cross-sectional data were collected by distributing questionnaires among students in five upper secondary schools in Norway with a net sample of n = 1814. Exploratory- and confirmatory factor analyses (CFA) and a reliability analysis were conducted and possible floor and ceiling effects were examined to evaluate the scales. A correlation analysis was conducted to examine criterion-related validity. RESULTS: The preliminary exploratory factor analysis gave strong indications of a one-dimensional solution for both versions of the scale. Furthermore, both scales showed high internal consistency (Cronbach's alpha = .93 for the WEMWBS and alpha = .88 for the SWEMWBS). The SWEMWBS showed the best fit in the CFA and a strong correlation with the WEMWBS ( r = .94). The score distributions of both scales indicated the possibility of a small ceiling effect. Both scales showed high correlations with related constructs in the expected direction. CONCLUSIONS: In our study, based on the CFA results and the high correlation between the original scale and the short version, the SWEMWBS was found to be most suitable for use among Norwegian adolescents. PMID- 29017403 TI - Protective effect of Zizyphus lotus jujube fruits against cypermethrin-induced oxidative stress and neurotoxicity in mice. AB - CONTEXT: Cypermethrin (CYP) is a synthetic pyrethroid insecticide used worldwide in agriculture, home pest control. The toxicity of CYP is well studied in many organisms. OBJECTIVE: The aim of present study was to investigate the protective effect of Zizyphus lotus (Zizyp) fruit against neurotoxicity and oxidative stress induced by CYP in mice. MATERIALS AND METHODS: Mice were divided into four groups of six each: groups I and II were used as control and CYP control (20 mg/kg body weight). While, groups III was orally treated with Zizyphus lotus fruit (5 g/kg body weight) plus CYP (20 mg/kg body weight) for 18 days. Furthermore, HPLC-ESI MS-MS (Q-Tof) and GC-MS were used to identify the compounds fraction. RESULTS: Antioxidant enzyme catalase (CAT), neurotoxicity enzyme acetylcholinesterase (AChE) activities and hydrogen peroxide (H2O2), malondialdehyde (MDA) levels were determined in the liver, kidney and heart. CYP caused decreased CAT activity, inhibition of AChE activity and increased the levels of H2O2 and MDA in heart, liver and kidney. CONCLUSION: Our results indicate that Zizyp fruit is markedly effective in protecting mice against CYP-induced biochemical changes. This protection may be due to its antioxidant property and scavenging ability against active free radicals. PMID- 29017404 TI - Synergistic effect of PANI-ZrO2 composite as antibacterial, anti-corrosion, and phosphate adsorbent material: synthesis, characterization and applications. AB - The increasing number of bacteria-related problems and presence of trace amounts of phosphate in treated wastewater effluents have become a growing concern in environmental research. The use of antibacterial agents and phosphate adsorbents for the treatment of wastewater effluents is of great importance. In this study, the potential applications of a synthesized polyaniline (PANI)-zirconium dioxide (ZrO2) composite as an antibacterial, phosphate adsorbent and anti-corrosion material were systematically investigated. The results of an antibacterial test reveal an effective area of inhibition of 14 and 18 mm for the Escherichia coli and Staphylococcus aureus bacterial strains, respectively. The antibacterial efficiency of the PANI-ZrO2 composite is twice that of commercial ZrO2. In particular, the introduction of PANI increased the specific surface area and roughness of the composite material, which was beneficial to increase the contact area with bacterial and phosphate. The experimental results demonstrated that phosphate adsorption studies using 200 mg P/L phosphate solution showed a significant phosphate removal efficiency of 64.4%, and the maximum adsorption capacity of phosphate on the solid surface of PANI-ZrO2 is 32.4 mg P/g. Furthermore, PANI-ZrO2 coated on iron substrate was tested for anti-corrosion studies by a natural salt spray test (7.5% NaCl), which resulted in the formation of no rust. To the best of our knowledge, no works have been reported on the synergistic effects of the PANI-ZrO2 composite as an antibacterial, anti corrosion, and phosphate adsorbent material. PANI-ZrO2 composite is expected to be a promising comprehensive treatment method for water filters in the aquaculture industry and for use in water purification applications. PMID- 29017406 TI - Corrigendum. PMID- 29017405 TI - Outcomes of transcatheter aortic valve replacement for bicuspid aortic stenosis - a systematic review of existing literature. AB - INTRODUCTION: Patients with bicuspid aortic valve (BAV) have traditionally been excluded from large randomized clinical trials involving transcatheter aortic valve replacements (TAVR). Technical enhancements, availability of new generation devices and improved outcomes have led to a marked increase in TAVR volume across the world including off label use in patients with BAV stenosis. Areas covered: In this manuscript, we have reviewed the currently available data regarding safety, efficacy, and outcomes of TAVR in patients with BAV stenosis. 11 large observational studies with near 1300 patients with BAV stenosis were included to summarizes outcomes of TAVR. Expert Commentary: The present review suggested that TAVR may be a safe and feasible treatment modality in BAV stenosis patients. New generation devices were associated with high device success rate whereas higher adverse procedural events were observed in early generation devices. There are no differences in post procedural outcomes with new generation TAVR devices for BAV when compared to tricuspid aortic anatomy. Larger studies are needed to evaluate the long-term outcome and durability of TAVR in patients with BAV. PMID- 29017407 TI - [The relationship between a sense of security and psychological problems in adolescents living in boarding schools and youth-welfare institutions]. AB - Objective: The willingness to participate and a sense of security are important aspects to be fostered in the institutional care of adolescents. Although these aspects are increasingly being examined from the perspective of the affected adolescents, it has yet to be considered whether psychological problems can be attributed to their experiences with the above-mentioned aspects. Methods: A total of 216 adolescents aged 14 to 18 years answered an online questionnaire the sense of security in their institution and their perception of the institution. Their willingness to participate was also examined. Psychological symptoms were assessed with the Strengths and Difficulties Questionnaire Self-Report (SDQ-S). Results: There is a significant correlation between sense of security and the overall SDQ score, with prosocial behavior, and with the positive perception of the institution. In addition, sense of security had a significant influence on the SDQ factors, the positive perception of the institution, and the items on the willingness to participate of the adolescents. The subsequent t-tests also showed significant results. Among other things, it was shown that the factor problems of adolescents is related to sense of security. Conclusion: The results provide an initial indication that there is a link between sense of security and psychological symptoms as well as willingness to participate and perception of the institution. Especially problems of adolescents in dealing with peers must be taken into account.in the development of protective concepts to increase the sense of security and their willingness to participate. PMID- 29017408 TI - Matrix metalloproteinase-2 C-735T and its interaction with matrix metalloproteinase-7 A-181G polymorphism are associated with the risk of preeclampsia: influence on total antioxidant capacity and blood pressure. AB - Matrix metalloproteinase (MMP) -2 C-735 T and MMP-7 A-181 G genotypes were studied in 144 pregnant patients with mild and severe preeclampsia and 103 healthy pregnant women. Significantly higher frequencies of CT and TT genotypes in patients compared to controls increased the risk of preeclampsia by 2.42 and 3.13 times, respectively. In severe preeclamptic women in the presence of MMP-2 CT the level of total antioxidant capacity was significantly lower than MMP-2 CC genotype. Also, in the presence of MMP-2 CT + TT blood pressure was significantly increased compared to CC genotype in all the patients. The combined presence of MMP-2 T and the MMP-7 A alleles compared to MMP-2 C and MMP-7 A alleles significantly increased the risk of preeclampsia by 3.08-fold. Our findings demonstrate an association between the MMP-2 C-735 T polymorphism with blood pressure and the risk of preeclampsia. Also, in the presence of polymorphism total antioxidant capacity level decreased in severe preeclampsia. Impact statement What is already known on this subject: Matrix metalloproteinases (MMPs) including MMP-2 might be involved in the pathogenesis of preeclampsia through alteration of invasive ability of trophoblastic cells and abnormal placentation. In one available study the absence of association between MMP-2 C-735T polymorphism with gestational hypertension or preeclampsia has been reported. What the results of this study add: We found that the presence of MMP-2 C-735T polymorphism increased the risk of preeclampsia and there was a significantly lower level of total antioxidant capacity in the presence of the polymorphism in severe preeclampsia. Also, we found significantly higher systolic and diastolic blood pressures in the presence of MMP-2 C-735T polymorphism. We detected a synergism between the MMP-2 T and the MMP-7 A alleles that increased the risk of preeclampsia. What the implications are of these findings for clinical practice and/or further research: New findings of our study are involvement of lower activity MMP-2 -735 T allele and its synergism with MMP-7 A allele, low promoter activity allele, in the pathogenesis of preeclampsia through possible impairment of placentation and also by decreased total antioxidant capacity and increased blood pressure. Further association studies of the role of MMP-2 polymorphism and MMP-2 activity in relation to oxidative stress parameters and blood pressure could elucidate the role of MMP-2 and MMP-7 in the pathogenesis of preeclampsia. PMID- 29017410 TI - Effects of Knee Position on the Reliability and Production of Maximal and Rapid Strength Characteristics During an Isometric Squat Test. AB - This study aimed to examine the effects of knee position on the reliability and production of peak force (PF) and rate of force development (RFD) characteristics during an isometric squat. Fourteen resistance-trained females performed isometric squats at 90, 120, and 150 degrees knee angles (corresponding to parallel, half, and quarter squat positions, respectively) on 2 different occasions, from which PF, peak RFD, and early (RFD30, RFD50, RFD100) and late (RFD200) phase RFD variables were extracted. PF and RFD200 were highly consistent across trials for all 3 squat positions, with intraclass correlation coefficients (ICCs) ranging between 0.812-0.904 and coefficients of variation (CVs) between 6.6-19.4%. For peak and early RFD characteristics, higher ICCs and lower CV values were observed for the quarter squat (ICCs = 0.818-0.852, CVs = 17.3-19.4%) compared to the parallel (ICCs = 0.591-0.649, CVs = 30.1-55.9%) and half squats (ICCs = 0.547-0.598,CVs = 31.1-34.2%). In addition, isometric PF and RFD200 increased (P <= .001-0.04) with squat position (parallel < half < quarter); however, there were no differences for peak RFD (P >= .27), RFD30 (P >= .99), RFD50 (P >= .99), and RFD100 (P >= .09). These findings suggest that performing isometric squats at higher (150 degrees ) rather than lower knee joint angles (90 120 degrees ) may provide for an improved capacity to produce greater PF and RFD200 as well as a more reliable testing position for measuring peak and early RFD characteristics. PMID- 29017411 TI - Occult Langerhans Cell Histiocytosis in Clear Cell Renal Cell Carcinoma. AB - Langerhans cell histiocytosis is a rare disease that is characterized by a localized or systemic proliferation of Langerhans dendritic cells and a wide spectrum of clinical presentations. We experienced an unusual case of occult Langerhans cell histiocytosis associated with clear cell renal cell carcinoma. A 62-year-old man underwent a partial nephrectomy for left renal mass. Histologic examination showed nests of clear cells with surrounding thin-walled vessel that were suggestive of clear cell renal cell carcinoma. A well-defined nodule composed of atypical mononuclear cells and plentiful eosinophils presented within clear cell renal cell carcinoma. The mononuclear cells were Langerhans cell histiocytes with S-100 and CD1a immunoreactivity. On follow-up comprehensive physical, laboratory, and radiologic examination, there were no other lesions of Langerhans cell histiocytosis. PMID- 29017415 TI - Editor's Note. PMID- 29017409 TI - Acute Clinical Predictors of Symptom Recovery in Emergency Department Patients with Uncomplicated Mild Traumatic Brain Injury or Non-Traumatic Brain Injuries. AB - There is a subset of patients with mild traumatic brain injury (mTBI) who report persistent symptoms that impair their functioning and quality of life. Being able to predict which patients will experience prolonged symptom recovery would help clinicians target resources for clinical follow-up to those most in need, and would facilitate research to develop precision medicine treatments for mTBI. The purpose of this study was to investigate the predictors of symptom recovery in a prospective sample of emergency department trauma patients with either mTBI or non-mTBI injuries. Subjects were examined at several time points from within 72 h to 45 days post-injury. We quantified and compared the value of a variety of demographic, injury, and clinical assessment (symptom, neurocognitive) variables for predicting self-reported symptom duration in both mTBI (n = 89) and trauma control (n = 73) patients. Several injury-related and neuropsychological variables assessed acutely (< 72 h) post-injury predicted symptom duration, particularly loss of consciousness (mTBI group), acute somatic symptom burden (both groups), and acute reaction time (both groups), with reasonably good model fit when including all of these variables (area under the receiver operating characteristic curve [AUC] = 0.76). Incorporating self-reported litigation involvement modestly increased prediction further (AUC = 0.80). The results highlight the multifactorial nature of mTBI recovery, and injury recovery more generally, and the need to incorporate a variety of variables to achieve adequate prediction. Further research to improve this model and validate it in new and more diverse trauma samples will be useful to build a neurobiopsychosocial model of recovery that informs treatment development. PMID- 29017416 TI - Thoughts From a Research Career by Dr Jack H. Dean, the 2017 Mildred S. Christian Career Achievement Award Winner. PMID- 29017417 TI - Aberrant Expression of lncRNA ( HOXA11-AS1) and Homeobox A ( HOXA9, HOXA10, HOXA11, and HOXA13) Genes in Infertile Women With Endometriosis. AB - This study aimed to study the expression of homeobox (HOX)A11-AS1 ( HOXA11 antisense RNA) long noncoding RNA (lncRNA) and the expression of homeobox A ( HOXA9, HOXA10, HOXA11, and HOXA13) genes in the eutopic (EU) and ectopic (EC) endometria of women with peritoneal endometriosis. A total of 30 women undergoing laparoscopic surgery for peritoneal endometriosis and 15 infertile women without endometriosis were enrolled in this study. Peritoneal EC tissue samples were obtained through surgery. The EU tissues were obtained by curettage. The EC and EU lncRNA and messenger RNA (mRNA) expression levels were measured using real time reverse transcriptase-polymerase chain reaction. The HOXA11-AS1 lncRNA and HOXA9, HOXA10, HOXA11, and HOXA13 mRNA were expressed at significantly lower levels in the EU than in the EC, that is, in women with peritoneal endometriosis ( P < .05). The expression levels of HOXA10 and HOXA11 in the EU were significantly lower in women with peritoneal endometriosis compared to the control group participants ( P < .05), whereas the levels of lncRNA ( HOXA11 AS1), HOXA9, and HOXA13 did not differ significantly between the 2 patient groups ( P > .05). In conclusion, the study findings suggest that HOXA11-AS1 lncRNA may play a role in the development of peritoneal endometriosis, but HOXA11-AS1 may not influence endometrial receptivity in endometriosis-associated infertility. PMID- 29017420 TI - Attitudes to evolution among Christians, Muslims and the Non-Religious in Britain: Differential effects of religious and educational factors. AB - According to poll results and media reports, Britain has a significant and growing number of creationists. However, little scholarly research has been carried out to explore this phenomenon. We present results from a national survey of 6020 individuals to give a comprehensive picture of contemporary public attitudes to evolution in Britain. Furthermore, we explore the effects of religion and education on attitudes to evolution. Unique to this study, we analyse the effects of attending a religiously affiliated school ('faith school') on acceptance of evolutionary theory. We examine these effects in the general population, and additionally, across different Christian, Muslim and Non Religious subpopulations. Results give strong evidence that the number of creationists has been overstated previously. We find the effect of education is complex and varies between different religious groups, but that faith school attendance is associated with more acceptance of evolution for people belonging to groups that tend to reject it. PMID- 29017418 TI - Maternal Glucose Supplementation in a Murine Model of Chorioamnionitis Alleviates Dysregulation of Autophagy in Fetal Brain. AB - Fetal brain injury induced by intrauterine inflammation is a major risk factor for adverse neurological outcomes, including cerebral palsy, cognitive dysfunction, and behavioral disabilities. There are no adequate therapies for neuronal protection to reduce fetal brain injury, especially new strategies that may apply promptly and conveniently. In this study, we explored the effect of maternal glucose administration in a mouse model of intrauterine inflammation at term. Our results demonstrated that maternal glucose supplementation significantly increased survival birth rate and improved the neurobehavioral performance of pups exposed to intrauterine inflammation. Furthermore, we demonstrated that maternal glucose administration improved myelination and oligodendrocyte development in offspring exposed to intrauterine inflammation. Though the maternal blood glucose concentration was temporally prevented from decrease induced by intrauterine inflammation, the glucose concentration in fetal brain was not recovered by maternal glucose supplementation. The adenosine triphosphate (ATP) level and autophagy in fetal brain were regulated by maternal glucose supplementation, which may prevent dysregulation of cellular metabolism. Our study is the first to provide evidence for the role of maternal glucose supplementation in the cell survival of fetal brain during intrauterine inflammation and further support the possible medication with maternal glucose treatment. PMID- 29017421 TI - Access to Medical Records' Impact on Community Pharmacist-Delivered Medication Therapy Management: A Pilot From the Medication Safety Research Network of Indiana (Rx-SafeNet). AB - BACKGROUND: Medication therapy management (MTM) may be optimized if pharmacists engaged in health information exchange (HIE) by reviewing unedited medical records. METHODS: In this nonblinded, randomized, controlled pilot, pharmacists delivered a part of MTM, comprehensive medication reviews (CMRs), to adult patients in a practice-based research network (PBRN). Intervention community pharmacists solicited the last 6 months of patients' primary care provider-held, unedited medical records. The primary and secondary outcomes were the number of medication-related problems (MRPs) and preventive care omissions identified. The intervention was analyzed via Mann-Whitney U test and multivariate linear regression models. Pharmacists were surveyed regarding the available health history's helpfulness in CMR delivery. RESULTS: Thirty-seven patients received CMRs across the 2 groups. Intervention pharmacists (n = 4) identified significantly more MRPs (median = 11 vs 6; B = 6.98, 95% confidence interval [CI]: 0.005-13.96; P = .049) and omissions in preventive care (24% vs 17%; B = 2.78, 95% CI: 0.46-5.10; P = .009) than usual care pharmacists (n = 3). Intervention pharmacists were more likely to agree they were confident they identified all of the patient's MRPs (47.1% vs 15.8%), but neither group was more likely than the other to believe they had resolved all MRPs (41.2% vs 42.1%). Finally, intervention pharmacists agreed 100% of the time that the available health history helped them complete a better CMR, compared with only 69% of usual care pharmacists. CONCLUSION: In this pilot, community pharmacists identified more MRPs and omissions in preventive care when they reviewed unedited medical records. Larger studies are warranted to determine whether HIE can improve outcomes. PMID- 29017419 TI - Effect of Normal Pregnancy Followed by Lactation on Long-Term Maternal Health in a Mouse Model. AB - Although it has been widely accepted that pregnancies with complications are associated with increased maternal cardiovascular risk later in life, there is no consensus if noncomplicated pregnancy followed by lactation plays a protective role or is a risk factor. The objective of this study was to investigate the effects of normal pregnancy and lactation on long-term maternal health in a mouse model. CD-1 mice were allocated to breeding (primigravid [PG]) and nonbreeding (nulligravid [NG]) groups. The PG group proceeded through normal pregnancy and delivery. Using a telemetry system, blood pressure (BP) was analyzed in the PG group at 6 months postpartum and in age-matched NG mice. Serum analytes, gene expressions, and protein levels were determined using appropriate analysis methods. Primigravid mice had significantly lower systolic and diastolic BP and fasting glucose levels. Circulating oxytocin (OXT) levels were significantly higher in PG mice. Oxt gene expression was significantly higher in the heart and aorta and lower in visceral adipose tissue (VAT) from PG mice. The oxytocin receptor ( Oxtr) gene expression was significantly higher in the heart, aorta, and VAT from PG animals. The level of Oxtr DNA hypermethylation and the expression of mmu-miR-29a were significantly lower in the hearts of PG mice. In PG VAT, glucose transporter-4 expression was significantly higher. Our study demonstrates that a history of normal pregnancy followed by lactation was associated with lower maternal cardiovascular risk factors later in life in female mouse. PMID- 29017422 TI - Nintedanib for Idiopathic Pulmonary Fibrosis. AB - OBJECTIVE: To review the pharmacology, safety, and efficacy of nintedanib for the treatment of idiopathic pulmonary fibrosis (IPF). METHODS: A literature search was conducted via PubMed using the MeSH term "idiopathic pulmonary fibrosis" combined with the key word "nintedanib." Additional online searches using Google Scholar, Micromedex, and PubMed were performed to obtain prescribing and cost information. RESULTS: One phase II and 2 replicate phase III clinical trials that examined the safety and efficacy of nintedanib for IPF were identified. In patients with IPF, nintedanib was more effective than placebo in slowing the annual rate of decline in forced vital capacity (FVC). Improvements in mortality, quality of life, and risk of acute exacerbations have not been consistently demonstrated in clinical trials. Diarrhea was the most common adverse effect associated with nintedanib use. Outside of these clinical trials, there are limited data evaluating nintedanib for the treatment of IPF. CONCLUSIONS: Nintedanib is a safe and effective treatment option for patients with IPF. Nintedanib slows IPF disease progression by reducing the rate of decline in FVC. Reductions in mortality and acute exacerbations may be present in certain subgroups of patients, but these outcomes require further research. Future studies on nintedanib are needed to explore its use in more advanced stages of IPF, its long-term safety and efficacy, its value in combination with pirfenidone or other therapies for IPF, and its cost-effectiveness in clinical practice. PMID- 29017423 TI - Utilization of an Integrated Electronic Health Record in the Emergency Department to Increase Prospective Medication Order Review by Pharmacists. AB - PURPOSE: The objective of this study is to evaluate the impact of an integrated medical record system on prospective medication order verification by pharmacists in the emergency department (ED) of a level I trauma center. METHODS: This was a single-center retrospective analysis comparing medication orders verified by a pharmacist during a 7-day period in 2013 (phase I) versus 2015 (phase II). Outcome measures include the percentage of medication orders reviewed by a pharmacist prior to administration and time from order entry to each of the following: pharmacist review, medication procurement from an automated dispensing cabinet (ADC), and medication administration. RESULTS: In total, 5450 medication orders were included in the study. The percentage of medication orders reviewed by a pharmacist prior to administration increased from 51.8% to 94% in phase I versus phase II, respectively ( P < .001). Median time from order entry to pharmacist verification decreased from 13 to 4 minutes in phase I versus phase II, respectively ( P < .001). Time from order entry to ADC dispense increased from a median of 9 minutes in phase I to 15 minutes in phase II ( P < .001). Time from order entry to nursing administration increased from a median time of 15 minutes in phase I to 23 minutes in phase II ( P < .001). CONCLUSION: Implementation of prospective pharmacist order verification in the ED increased the percentage of medications reviewed by a pharmacist prior to administration and improved pharmacist efficiency in the medication verification process. This increase in pharmacist review was associated with a marginal increase in time to medication procurement and administration. PMID- 29017424 TI - Development of a Statewide Antibiogram to Assess Regional Trends in Antibiotic Resistant ESKAPE Organisms. AB - BACKGROUND: Hospitals and other facilities utilize antibiograms as tools for optimal antibiotic selection. Currently, no measures compare broad trends on the regional level, despite interest for more comprehensive data, particularly for antibiotic-resistant ESKAPE organisms. OBJECTIVE: To collect and compare regional health-care facility antibiogram data for ESKAPE organisms to form a cumulative antibiogram. METHODS: Health-care facilities were identified using the publicly accessible Pennsylvania Department of Health web site. Facilities were contacted by phone from June 2015 to 2016 to ascertain participation/consent for the study. An electronic questionnaire ascertained baseline facility characteristics. Facilities provided quantitative antibiotic susceptibility data via antibiograms. Antibiogram data were synthesized as cumulative susceptibilities, stratified by urban/suburban versus rural location. RESULTS: Forty-five facilities were included in the study (n = 18 urban/suburban, n = 27 rural). The overall prevalence of methicillin-resistant S aureus was 41.5%, stratified at 40.6% and 43.3% in urban/suburban and rural facilities, respectively ( P < .001). Vancomycin-resistant Enterococcus prevalence was 18.8% overall, with 27.7% in urban/suburban and 14.0% in rural facilities ( P < .001). Generally, lower susceptibility rates were found for high-utilization beta-lactams across gram negative organisms in urban/suburban facilities. CONCLUSIONS: Development of a regional cumulative antibiogram that targets key ESKAPE pathogens is feasible, while observed trends may help aid future antimicrobial stewardship efforts. PMID- 29017425 TI - Time to Occurrence Based on Risk Stratification of Hospital-Acquired Venous Thromboembolism: A Retrospective Observational Cohort Study. AB - BACKGROUND: In-hospital venous thromboembolism (VTE) causes significant morbidity and mortality in hospitalized patients. The objective of our study is to determine the time to in-hospital VTE based on baseline risk stratification. METHODS: All adult patients admitted to a 900-bed academic tertiary referral hospital who developed a VTE during hospital admission from September 1, 2011, to June 30, 2015, were retrospectively analyzed. Patients were excluded if they were younger than 18 years or if the VTE was present on admission. RESULTS: The cohort included 400 patients, 224 (56%) males, median age 66 years. The median time to VTE was 8 days. Significant differences in time to VTE existed between the risk groups. CONCLUSION: Time to VTE in a broad hospitalized patient population differs based on admission risk group. This finding highlights the importance of performing risk assessment upon admission and subsequently with clinical changes to assess increases in risk scores. PMID- 29017426 TI - Investigations on the Influence of Zidovudine in the Pharmacokinetics of Isoniazid and Its Hepatotoxic Metabolites in Rats. AB - The HIV-infected patients are co-infected with many bacterial infections in which tuberculosis is most common found worldwide. These patients are often administered with combined therapy of anti-retroviral and anti-tubercular drugs which leads to several complications including hepatotoxicity or adverse drug interactions. The drug-drug interactions between the anti-retroviral and anti tubercular drugs are not clearly defined and hence, this study was conducted to evaluate the pharmacokinetic drug-drug interactions of Zidovudine (AZT) with Isoniazid (INH) and its hepatotoxic metabolites. Seventy two rats were randomly divided into two major groups with their sub-groups each comprising 6 animals. The Group I received INH alone at a dose of 25 mg/kg; b.w and Group II received AZT (50 mg/kg; b.w) along with INH orally. Pharmacokinetic studies of INH and its metabolites i.e., acetyl hydrazine (ACHY) and hydrazine (HYD) shows that INH and ACHY attains maximum plasma concentration ( Cmax) within 30 minutes and HYD attains Cmax at 1 hour after INH administration and all these analytes disappear from plasma within 4 hours. Pharmacokinetic studies also revealed that AZT treatment did not showed any drug-drug interactions and have no effect on the T1/2, plasma clearance, AUC, Cmax and Tmax of INH and its hepatotoxic metabolites. PMID- 29017428 TI - Editor Farewell. PMID- 29017427 TI - Fraction Intervention for Students With Mathematics Difficulties: Lessons Learned From Five Randomized Controlled Trials. AB - In this article, the authors summarize results from 5 randomized controlled trials assessing the effects of intervention to improve the fraction performance of fourth-grade students at risk for difficulty in learning about fractions. The authors begin by explaining the importance of competence with fractions and why an instructional focus on fractions magnitude understanding may improve learning. They then describe an intervention that relies strongly on this type of understanding about fractions instruction, and they provide an overview of the intervention's overall effects. This is followed by an overview of 5 intervention components for which the authors isolated effects. They conclude by discussing some of the lessons learned from this research program. PMID- 29017429 TI - Rehabilitation methods for reducing shoulder subluxation in post-stroke hemiparesis: a systematic review. AB - Background Shoulder subluxation is a common post-stroke complication affecting up to 80% of the stroke subjects. The pathomechanics at the skeletal level does not provide the structural base for the neural-motor recovery. The management of subluxed shoulder has always been a challenge, complicating the motor and functional recovery. Objective To review the available studies of rehabilitation interventions for reduction of subluxed shoulder and to explore the evidence for impact of subluxation on motor recovery. Method PubMed, the Cochrane Central Register of Controlled Trials, DORIS, PEDro, and OTseeker databases were searched using the keywords: Stroke and Shoulder and Subluxation. The experimental, quasi experimental, and single group studies investigated the rehabilitation methods to reduce the subluxation were selected. A narrative synthesis of the findings from the selected studies was carried out. Result 2717 studies were identified and 22 studies (14 RCTs or controlled trials and 8 pre-post-single group studies) were finally selected for the review. The rehabilitation intervention: Functional electrical stimulation (FES)/electrical stimulation (11), orthosis/support (07), taping (02), and robotic training and other methods (02) were reviewed. FES is effective in reducing subluxation in acute stage. Shoulder support or orthosis while in situ may reduce the subluxation temporarily. X-ray was the most commonly used assessment tool for the subluxation. Implication of the rehabilitation technique on motor recovery has not been investigated. Conclusion No technique could effectively reduce the subluxation and facilitate the upper limb recovery. Further studies integrating the usual motor training and the subluxation rehabilitation are warranted. Future trials using more precise and valid tool such as ultrasonography are also needed. PMID- 29017433 TI - The Measurement, Challenges, and Opportunities of Decisional Involvement. PMID- 29017430 TI - Characterizing neurocognitive late effects in childhood leukemia survivors using a combination of neuropsychological and cognitive neuroscience measures. AB - Knowledge about cognitive late effects in survivors of childhood acute lymphoblastic leukemia (ALL) is largely based on standardized neuropsychological measures and parent reports. To examine whether cognitive neuroscience paradigms provided additional insights into neurocognitive and behavioral late effects in ALL survivors, we assessed cognition and behavior using a selection of cognitive neuroscience tasks and standardized measures probing domains previously demonstrated to be affected by chemotherapy. 130 ALL survivors and 158 control subjects, between 8 and 18 years old at time of testing, completed the n-back (working memory) and stop-signal (response inhibition) tasks. ALL survivors also completed standardized measures of intelligence (Wechsler Intelligence Scales [WISC-IV]), motor skills (Grooved Pegboard), math abilities (WIAT-III), and executive functions (Delis-Kaplan Executive Function System). Parents completed behavioral measures of executive functions (Behavior Rating Inventory of Executive Function [BRIEF]) and attention (Conners-3). ALL survivors exhibited deficiencies in working memory and response inhibition compared with controls. ALL survivors also exhibited deficits on WISC-IV working memory and processing speed, Grooved Pegboard, WIAT-III addition and subtraction fluency, and numerical operations, as well as DKEFS number-letter switching. Parent reports suggested more attention deficits (Conners-3) and behavioral difficulties (BRIEF) in ALL survivors compared with referenced norms. Low correspondence between standardized and experimental measures of working memory and response inhibition was noted. The use of cognitive neuroscience paradigms complements our understanding of the cognitive deficits evident after treatment of ALL. These measures could further delineate cognitive processes involved in neurocognitive late effects, providing opportunities to explore their underlying mechanisms. PMID- 29017432 TI - Ectopic expression of Mesembryanthemum crystallinum sodium transporter McHKT2 provides salt stress tolerance in Arabidopsis thaliana. AB - Most plants do not tolerate highly saline environments; the development of salt stress tolerance is crucial for improving crop yield. An efficient way of finding genes involved in salt tolerance is to study and use data from halophytes. In this study, we used the Mesembryanthemum crystallinum (ice plant) expression data set and selected for further study the gene McHKT2, which encodes for the Arabidopsis sodium transporter ortholog AtHKT1. In comparison with the HKT1 amino acid sequences from other plants, McHKT2 has several unique features. It seems to be localized to the plasma membrane, and its overexpression confers strong salt tolerance in Arabidopsis thaliana. Our results indicate that McHKT2 is a suitable candidate protein that can induce salt tolerance in non-halophytes. Like McHKT2, using transcriptome data-sets from halophytes such as ice plant give us an efficiency way to obtain new gene resources that might involve in plant salt tolerance. PMID- 29017434 TI - Transesophageal Echocardiogram-Guided Stent Placement in Superior Vena Cava Syndrome Secondary to Granulomatous Lung Disease: A Case Series and Literature Review. AB - Obstruction of the superior vena cava (SVC) is an uncommon, but potentially life threatening condition due to likely development of edema in the head and neck and potential respiratory compromise. Less than half of those affected by SVC syndrome survive more than a year. Obstruction can be from neoplasms or secondary to benign disease. Treatment for most cases of symptomatic SVC syndrome involves placement of a stent to relieve the stenosis. Serious complications such as stent migration, pulmonary embolism, and cardiac tamponade can occur in 5% to 10% of cases, and inadequate imaging of the SVC-atrial junction by fluoroscopy contributes to these problems. The overlapping contrast in the atrium makes it difficult to precisely place the distal end of the stent, potentially allowing for embolization of the stent to occur. We present a case series of 3 patients wherein transesophageal echocardiography was used for guidance of stent placement in the SVC and significantly aided in placement. PMID- 29017435 TI - Expression, purification, and characterization of a novel acid phosphatase that displays protein tyrosine phosphatases activity from Metarhizium anisopliae strain CQMa102. AB - The protein tyrosine phosphatase (PTPase) plays an important role in insect immune system. Our group has purified a type of acid phosphatase that could specifically dephosphorylate trans-Golgi p230 in vitro. In order to study this phosphatase further, we have identified and cloned the phosphatase gene from a locust specific Metarhizium anisopliae Strain CQMa102. The CQMa102 phosphatase was expressed in Pichia pastoris to verify its protease activity. The molecular weight (MW) and the isoelectric point (pI) of the phosphatase were about 85 kDa and 6.15, respectively. Substrate specificity evaluation showed that the purified enzyme exhibited high activity on O-phospho-L-tyrosine. At its optimal pH of 6.5 and optimum temperature of 70 degrees C, the protein showed the highest activity respectively. It can be activated by Ca2+, Mg2+, Mn2+, Ba2+, Co2+ and phosphate analogs, but inhibited by Zn2+, Cu2+, fluoride, dithiothreitol, beta mercaptoethanol and N-ethylmaleimide. PMID- 29017436 TI - Role of Markov Modeling Approaches to Understand the Impact of Infertility Treatments. AB - We are proposing to use Markov modeling type of analysis to understand data generated by treatments for infertility in women receiving ovarian stimulations. We describe the conceptual novelties, need for such an analysis, basics of the proposed methods, and theoretical constructions of various probabilities associated with practical level implementation of the Markov modeling procedures. This method can be adopted to infertility-related data visualizations whenever progression of outcome stages in infertility treatment is recorded. These methods if implemented should be able to enhance the understanding of treatment impacts of gonadotropins, clomiphene citrate, or an aromatase inhibitor at the beginning of treatment cycles of infertile women. This framework will be very useful for infertility treatment practitioners to compute the values of success rates of treatment for total population or population divided by demographic, clinical, and genetic factors. These methods can be continuously updated with newer data and translated into a mobile app to be used by clinical practitioners. PMID- 29017437 TI - High Expression of High-Mobility Group Box 1 in Menstrual Blood: Implications for Endometriosis. AB - Endometriosis is a benign gynecologic disease characterized by the presence of ectopic endometrium and associated with inflammation and immune abnormalities. However, the molecular basis for endometriosis is not well understood. To address this issue, the present study examined the expression of high-mobility group box (HMGB) 1 in menstrual blood to investigate its role in the ectopic growth of human endometriotic stromal cells (ESCs). A total of 139 patients were enrolled in this study; 84 had endometriosis and 55 were nonendometriotic gynecological patients (control). The HMGB1 levels in various fluids were measured by enzyme linked immunosorbent assay. Expression of receptor for advanced glycation end products (RAGE) in eutopic and ectopic endometrium was assessed by immunohistochemistry, and RAGE and vascular endothelial growth factor ( VEGF) messenger RNA expression in HMGB1- and lipopolysaccharide (LPS)-treated ESCs was evaluated by real-time polymerase chain reaction. The HMGB1 concentration was higher in menstrual blood than in serum or peritoneal fluid ( P < .001 for both). RAGE was expressed in both normal and ectopic endometrium. Administration of 1000 ng/mL HMGB1 or coadministration of 100 ng/mL HMGB1 and 100 ng/mL LPS induced VEGF production in ESCs relative to the control ( P < .05). These results suggest that menstrual fluid has naturally high levels of HMGB1 and may promote endometriosis following retrograde menstruation when complexed with other factors such as LPS by inducing inflammation and angiogenesis. PMID- 29017440 TI - Epigenetic Role in Hypertensive Disorders of Pregnancy. PMID- 29017441 TI - Midwest Nursing Research Society News. PMID- 29017438 TI - HSD11B2, RUNX3, and LINE-1 Methylation in Placental DNA of Hypertensive Disorders of Pregnancy Patients. AB - Hypertensive Disorders of Pregnancy (HDsP) remain leading causes of maternal and perinatal morbidity and mortality. Growing evidence suggests the involvement of epigenetic factors, such as gene-specific and global DNA methylation changes, both in the etiology and as an effect of HDsP. In this study, we investigated the potential association between placental DNA methylation status in selected CpGs of HSD11B2 cortisol level controlling gene, RUNX3 tumor suppressor gene, and long interspersed nucleotide element-1 (LINE-1) repetitive elements and HDsP preeclampsia (PE), gestational hypertension (GH), and chronic hypertension (CH). Methylation-specific polymerase chain reaction (MSP) and pyrosequencing (PSQ) were used to analyze placental DNA methylation. Plasma and urine cortisol and cortisone levels were measured using high performance liquid chromatography with fluorescence detection (HPLC-FLD), whereas serum progesterone level was determined by electrochemiluminescence immunoassay. The mean percentage of HSD11B2, RUNX3, and LINE-1 methylation was not altered in the placentas of patients with HDsP, as compared to the controls. However, among patients from PE, GH, and CH groups, several significant correlations were observed between the methylation status of HSD11B2, RUNX3, or LINE-1 and children's birth weight, gestational age at delivery, mother's age, and body mass index as well as hormones levels. These results indicate lack of association between methylation status of HSD11B2, RUNX3, or LINE-1 repetitive elements and HDsP. However, association of these parameters with some clinical variables may suggest the role of placental DNA methylation in fetal development and should be further explored. PMID- 29017439 TI - The Expression of PDCD4 in Patients With Missed Abortion and Its Clinical Significance. AB - Missed abortion is a special form of spontaneous abortion and its incidence shows a rising trend. Immunological factor is one of the most common reasons. Tumor suppressor gene programmed cell death 4 ( PDCD4) also participates in some immune mediated inflammation, such as atherosclerosis, and so on, but the role of PDCD4 in missed abortion remains unclear. Here, the expression of PDCD4 was detected in decidual and chorionic tissues, as well as peripheral blood mononuclear cells from patients with missed abortion and healthy controls using quantitative real time polymerase chain reaction (qRT-PCR), Western blot, and immunohistochemistry. The expression of cytokines was also detected in decidual tissues using qRT-PCR. The levels of serum estradiol and progesterone were measured by radioimmunoassay. In addition, the correlations of PDCD4 expression with cytokines and hormones were analyzed. The results demonstrated that PDCD4 expression was reduced in decidual tissues from the missed abortion group compared with the control group. The levels of tumor necrosis factor alpha were significantly higher in decidual tissues of missed abortion patients than those in normal controls. We also found serum estradiol and progesterone levels were significantly lower in the missed abortion group than those in the control group, and serum progesterone level was inversely related to PDCD4 messenger RNA level. The data suggested that reduced PDCD4 expression may be involved in the occurrence of missed abortion. This may facilitate the potential development of novel diagnostic and therapeutic strategies for the treatment of missed abortion. PMID- 29017443 TI - A new synonym-substitution method to enrich the human phenotype ontology. AB - BACKGROUND: Named entity recognition is critical for biomedical text mining, where it is not unusual to find entities labeled by a wide range of different terms. Nowadays, ontologies are one of the crucial enabling technologies in bioinformatics, providing resources for improved natural language processing tasks. However, biomedical ontology-based named entity recognition continues to be a major research problem. RESULTS: This paper presents an automated synonym substitution method to enrich the Human Phenotype Ontology (HPO) with new synonyms. The approach is mainly based on both the lexical properties of the terms and the hierarchical structure of the ontology. By scanning the lexical difference between a term and its descendant terms, the method can learn new names and modifiers in order to generate synonyms for the descendant terms. By searching for the exact phrases in MEDLINE, the method can automatically rule out illogical candidate synonyms. In total, 745 new terms were identified. These terms were indirectly evaluated through the concept annotations on a gold standard corpus and also by document retrieval on a collection of abstracts on hereditary diseases. A moderate improvement in the F-measure performance on the gold standard corpus was observed. Additionally, 6% more abstracts on hereditary diseases were retrieved, and this percentage was 33% higher if only the highly informative concepts were considered. CONCLUSIONS: A synonym-substitution procedure that leverages the HPO hierarchical structure works well for a reliable and automatic extension of the terminology. The results show that the generated synonyms have a positive impact on concept recognition, mainly those synonyms corresponding to highly informative HPO terms. PMID- 29017442 TI - Genome-wide characterization, evolution, and expression analysis of the leucine rich repeat receptor-like protein kinase (LRR-RLK) gene family in Rosaceae genomes. AB - BACKGROUND: Leucine-rich repeat receptor-like protein kinase (LRR-RLK) is the largest gene family of receptor-like protein kinases (RLKs) and actively participates in regulating the growth, development, signal transduction, immunity, and stress responses of plants. However, the patterns of LRR-RLK gene family evolution in the five main Rosaceae species for which genome sequences are available have not yet been reported. In this study, we performed a comprehensive analysis of LRR-RLK genes for five Rosaceae species: Fragaria vesca (strawberry), Malus domestica (apple), Pyrus bretschneideri (Chinese white pear), Prunus mume (mei), and Prunus persica (peach), which contained 201, 244, 427, 267, and 258 LRR-RLK genes, respectively. RESULTS: All LRR-RLK genes were further grouped into 23 subfamilies based on the hidden Markov models approach. RLK-Pelle_LRR-XII-1, RLK-Pelle_LRR-XI-1, and RLK-Pelle_LRR-III were the three largest subfamilies. Synteny analysis indicated that there were 236 tandem duplicated genes in the five Rosaceae species, among which subfamilies XII-1 (82 genes) and XI-1 (80 genes) comprised 68.6%. CONCLUSIONS: Our results indicate that tandem duplication made a large contribution to the expansion of the subfamilies. The gene expression, tissue-specific expression, and subcellular localization data revealed that LRR-RLK genes were differentially expressed in various organs and tissues, and the largest subfamily XI-1 was highly expressed in all five Rosaceae species, suggesting that LRR-RLKs play important roles in each stage of plant growth and development. Taken together, our results provide an overview of the LRR-RLK family in Rosaceae genomes and the basis for further functional studies. PMID- 29017444 TI - Quantitative trait loci associated with different polar metabolites in perennial ryegrass - providing scope for breeding towards increasing certain polar metabolites. AB - BACKGROUND: Recent advances in the mapping of biochemical traits have been reported in Lolium perenne. Although the mapped traits, including individual sugars and fatty acids, contribute greatly towards ruminant productivity, organic acids and amino acids have been largely understudied despite their influence on the ruminal microbiome. RESULTS: In this study, we used a targeted gas chromatography mass spectrometry (GC-MS) approach to profile the levels of 25 polar metabolites from different classes (sugars, amino acids, phenolic acids, organic acids and other nitrogen-containing compounds) present in a L. perenne F2 population consisting of 325 individuals. A quantitative trait (QTL) mapping approach was applied and successfully identified QTLs regulating seven of those polar metabolites (L-serine, L-leucine, glucose, fructose, myo-inositol, citric acid and 2, 3-hydroxypropanoic acid).Two QTL mapping approaches were carried out using SNP markers on about half of the population only and an imputation approach using SNP and DArT markers on the entire population. The imputation approach confirmed the four QTLs found in the SNP-only analysis and identified a further seven QTLs. CONCLUSIONS: These results highlight the potential of utilising molecular assisted breeding in perennial ryegrass to modulate a range of biochemical quality traits with downstream effects in livestock productivity and ruminal digestion. PMID- 29017445 TI - Protein remote homology detection based on bidirectional long short-term memory. AB - BACKGROUND: Protein remote homology detection plays a vital role in studies of protein structures and functions. Almost all of the traditional machine leaning methods require fixed length features to represent the protein sequences. However, it is never an easy task to extract the discriminative features with limited knowledge of proteins. On the other hand, deep learning technique has demonstrated its advantage in automatically learning representations. It is worthwhile to explore the applications of deep learning techniques to the protein remote homology detection. RESULTS: In this study, we employ the Bidirectional Long Short-Term Memory (BLSTM) to learn effective features from pseudo proteins, also propose a predictor called ProDec-BLSTM: it includes input layer, bidirectional LSTM, time distributed dense layer and output layer. This neural network can automatically extract the discriminative features by using bidirectional LSTM and the time distributed dense layer. CONCLUSION: Experimental results on a widely-used benchmark dataset show that ProDec-BLSTM outperforms other related methods in terms of both the mean ROC and mean ROC50 scores. This promising result shows that ProDec-BLSTM is a useful tool for protein remote homology detection. Furthermore, the hidden patterns learnt by ProDec-BLSTM can be interpreted and visualized, and therefore, additional useful information can be obtained. PMID- 29017446 TI - LSTrAP: efficiently combining RNA sequencing data into co-expression networks. AB - BACKGROUND: Since experimental elucidation of gene function is often laborious, various in silico methods have been developed to predict gene function of uncharacterized genes. Since functionally related genes are often expressed in the same tissues, conditions and developmental stages (co-expressed), functional annotation of characterized genes can be transferred to co-expressed genes lacking annotation. With genome-wide expression data available, the construction of co-expression networks, where genes are nodes and edges connect significantly co-expressed genes, provides unprecedented opportunities to predict gene function. However, the construction of such networks requires large volumes of high-quality data, multiple processing steps and a considerable amount of computation power. While efficient tools exist to process RNA-Seq data, pipelines which combine them to construct co-expression networks efficiently are currently lacking. RESULTS: LSTrAP (Large-Scale Transcriptome Analysis Pipeline), presented here, combines all essential tools to construct co-expression networks based on RNA-Seq data into a single, efficient workflow. By supporting parallel computing on computer cluster infrastructure, processing hundreds of samples becomes feasible as shown here for Arabidopsis thaliana and Sorghum bicolor, which comprised 876 and 215 samples respectively. The former was used here to show how the quality control, included in LSTrAP, can detect spurious or low-quality samples. The latter was used to show how co-expression networks are able to group known photosynthesis genes and imply a role in this process of several, currently uncharacterized, genes. CONCLUSIONS: LSTrAP combines the most popular and performant methods to construct co-expression networks from RNA-Seq data into a single workflow. This allows large amounts of expression data, required to construct co-expression networks, to be processed efficiently and consistently across hundreds of samples. LSTrAP is implemented in Python 3.4 (or higher) and available under MIT license from https://github.molgen.mpg.de/proost/LSTrAP. PMID- 29017447 TI - Characterization of a novel KCNJ2 sequence variant detected in Andersen-Tawil syndrome patients. AB - BACKGROUND: Mutations in the KCNJ2 gene encoding the ion channel Kir2.1 have been linked to the Andersen-Tawil syndrome (ATS). Molecular genetic screening performed in a family exhibiting clinical ATS phenotypes unmasked a novel sequence variant (c.434A > G, p.Y145C) in this gene. The aim of this study was to investigate the effect of this variant on Kir2.1 ion channel functionality. METHODS: Mutant as well as wild type GFP tagged Kir2.1 channels were expressed in HEK293 cells. In order to examine the effect of the new variant, electrophysiological measurements were performed using patch clamp technique. Cellular localization of the mutant in comparison to the wild type ion channel was analyzed by confocal laser scanning microscopy. RESULTS: The currents of cells expressing only mutant channels or a mixture of wild type and mutant were significantly reduced compared to those expressing wild type (WT) channels (p < 0.01). Whereas WT expressing cells exhibited at -120 mV an averaged current of 4.5 +/- 1.9 nA, the mutant generates only a current of -0.17 +/- 0.07 nA. A co expression of mutant and WT channel generates only a partial rescue of the WT current. Confocal laser scanning microscopy indicated that the novel variant is not interfering with synthesis and/or protein trafficking. CONCLUSIONS: The detected sequence variant causes loss-of-function of the Kir2.1 channel and explains the clinical phenotypes observed in Andersen-Tawil syndrome patients. PMID- 29017448 TI - What is polypharmacy? A systematic review of definitions. AB - BACKGROUND: Multimorbidity and the associated use of multiple medicines (polypharmacy), is common in the older population. Despite this, there is no consensus definition for polypharmacy. A systematic review was conducted to identify and summarise polypharmacy definitions in existing literature. METHODS: The reporting of this systematic review conforms to the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) checklist. MEDLINE (Ovid), EMBASE and Cochrane were systematically searched, as well as grey literature, to identify articles which defined the term polypharmacy (without any limits on the types of definitions) and were in English, published between 1st January 2000 and 30th May 2016. Definitions were categorised as i. numerical only (using the number of medications to define polypharmacy), ii. numerical with an associated duration of therapy or healthcare setting (such as during hospital stay) or iii. Descriptive (using a brief description to define polypharmacy). RESULTS: A total of 1156 articles were identified and 110 articles met the inclusion criteria. Articles not only defined polypharmacy but associated terms such as minor and major polypharmacy. As a result, a total of 138 definitions of polypharmacy and associated terms were obtained. There were 111 numerical only definitions (80.4% of all definitions), 15 numerical definitions which incorporated a duration of therapy or healthcare setting (10.9%) and 12 descriptive definitions (8.7%). The most commonly reported definition of polypharmacy was the numerical definition of five or more medications daily (n = 51, 46.4% of articles), with definitions ranging from two or more to 11 or more medicines. Only 6.4% of articles classified the distinction between appropriate and inappropriate polypharmacy, using descriptive definitions to make this distinction. CONCLUSIONS: Polypharmacy definitions were variable. Numerical definitions of polypharmacy did not account for specific comorbidities present and make it difficult to assess safety and appropriateness of therapy in the clinical setting. PMID- 29017449 TI - Circulating adipocyte fatty acid-binding protein is a predictor of cardiovascular events in patients with stable angina undergoing percutaneous coronary intervention. AB - BACKGROUND: Adipocyte fatty acid-binding protein (A-FABP) is expressed in both adipocytes and macrophages. Recent studies have shown that A-FABP is secreted by adipocytes and that the A-FABP concentration is associated with obesity, insulin resistance, and atherosclerosis. We have reported that the coronary atherosclerotic burden is associated with the serum A-FABP concentration. In the present study, we investigated whether the serum A-FABP concentration is associated with prognosis in patients with stable angina pectoris who have undergone percutaneous coronary intervention (PCI). METHODS: This was a prospective single-center trial. In total, 130 patients with stable angina pectoris undergoing their first PCI were enrolled from August 2008 to July 2010 at Kagawa Prefectural Central Hospital. The primary endpoints were cardiovascular death, nonfatal myocardial infarction, nonfatal stroke, revascularization, and hospitalization for heart failure. RESULTS: During the follow-up (median, 50 months; interquartile range, 23-66 months), 49 cardiovascular events occurred. Kaplan-Meier analysis showed that the cumulative incidence of the primary endpoints in the high A-FABP group (median A-FABP concentration of >= 18.6 ng/ml) was greater than that in the low A-FABP group. Cox analysis showed that the A FABP concentration was an independent predictor of cardiovascular events adjusted for age and the presence of multi-vessel disease (hazard ratio, 1.03; 95% confidence interval, 1.01-1.04; p = 0.01). CONCLUSION: The serum A-FABP concentration is associated with prognosis in patients with stable angina undergoing PCI, suggesting that the serum A-FABP concentration could be useful for risk assessment of secondary prevention. TRIAL REGISTRATION: UMIN Clinical Trials Registry UMIN000029283 (registration date: September 25, 2017), retrospectively registered. PMID- 29017450 TI - Complete genome sequence of Citrobacter werkmanii strain BF-6 isolated from industrial putrefaction. AB - BACKGROUND: In our previous study, Citrobacter werkmanii BF-6 was isolated from an industrial spoilage sample and demonstrated an excellent ability to form biofilms, which could be affected by various environmental factors. However, the genome sequence of this organism has not been reported so far. RESULTS: We report the complete genome sequence of C. werkmanii BF-6 together with the description of the genome features and its annotation. The size of the complete chromosome is 4,929,789 bp with an average coverage of 137*. The chromosome exhibits an average G + C content of 52.0%, and encodes 4570 protein coding genes, 84 tRNA genes, 25 rRNA operons, 3 microsatellite sequences and 34 minisatellite sequences. A previously unknown circular plasmid designated as pCW001 was also found with a length of 212,549 bp and a G + C content of 48.2%. 73.5%, 75.6% and 92.6% of the protein coding genes could be assigned to GO Ontology, KEGG Pathway, and COG (Clusters of Orthologous Groups) categories respectively. C. werkmanii BF-6 and C. werkmanii NRBC 105721 exhibited the closest evolutionary relationships based on 16S ribosomal RNA and core-pan genome assay. Furthermore, C. werkmanii BF-6 exhibits typical bacterial biofilm formation and development. In the RT-PCR experiments, we found that a great number of biofilm related genes, such as bsmA, bssR, bssS, hmsP, tabA, csgA, csgB, csgC, csgD, csgE, and csgG, were involved in C. werkmanii BF-6 biofilm formation. CONCLUSIONS: This is the first complete genome of C. werkmanii. Our work highlights the potential genetic mechanisms involved in biofilm formation and paves a way for further application of C. werkmanii in biofilms research. PMID- 29017451 TI - Multiplex PCR point of care testing versus routine, laboratory-based testing in the treatment of adults with respiratory tract infections: a quasi-randomised study assessing impact on length of stay and antimicrobial use. AB - BACKGROUND: Laboratory-based respiratory pathogen (RP) results are often available too late to influence clinical decisions such as hospitalisation or antibiotic treatment due to time delay in transport of specimens and testing schedules. Ward-based i.e. point of care (POC) testing providing rapid results may alter the clinical management pathway. METHODS: FilmArray(r) RP polymerase chain reaction (PCR) systems were placed in three in-patient and out-patient medical areas. Patients presenting with influenza-like illness /upper respiratory tract infection +/- lower RTI were recruited between January-July 2015. FilmArray(r) POC testing occurred on even days of the month (intervention) or routine, laboratory-based RP PCR testing +/- atypical serology on odd days (control). The primary outcome was length of hospital stay. The secondary outcomes were impact on the use of antimicrobials, readmissions, all-cause mortality, length of ward stay and turn-around time (TAT) (time to result from admission). RESULTS: Of 606 eligible patients, 545 (89.9%) were included; 211 in the control arm and 334 in the intervention arm. 20% of control arm patients and 24% of intervention arm patients had an RP detected. POC testing was not associated with the primary outcome measure, length of stay, but reduced the TAT from 39.5 h to 19.0 h, p < 0.001. Only the prescribing decision differed between study arms, p < 0.001. When antivirals were given, the intervention was associated with a reduction in the median time to the first dose of 36 h and allowed appropriate treatment of mycoplasma infection. CONCLUSIONS: We found no association between respiratory PCR POC testing and length of stay or most of the secondary outcomes except the antimicrobial prescribing decision. This was probably due to a delay in initiating FilmArray(r) testing. Despite this, POC testing allowed time-critical antivirals to be given significantly faster, appropriate mycoplasma treatment and results were available considerably faster than routine, laboratory-based testing. Ward-staff of all grades performed POC testing without difficulty suggesting potential use across many divergent healthcare settings. Further studies evaluating the implementation of rapid respiratory PCR POC testing and the effect on length of stay and antimicrobial use are required. TRIAL REGISTRATION: ISRCTN10470967 , Retrospectively Registered, 30/6/2015. PMID- 29017453 TI - Positive and negative outcomes of informal caregiving at home and in institutionalised long-term care: a cross-sectional study. AB - BACKGROUND: Our ageing society is putting tremendous strain on public health and welfare programs to meet the needs of ageing individuals. Promoting informal caregiving is one way for policymakers to reduce this burden. However, caregiving may be experienced as stressful and is associated with adverse health consequences. While quite a lot of research focuses on caregiving for community dwelling older adults, little is known about informal care in institutionalised long-term care (ILTC). Therefore, the objectives of this study were: 1) to compare characteristics of informal caregivers and care receivers and caregiver outcomes - at home and in ILTC; 2) to study the association between these characteristics and positive and negative caregiver outcomes; 3) to investigate the moderating effect of the setting (at home vs. ILTC) on these associations. METHODS: A cross-sectional study was conducted using the TOPICS-MDS DataSet. A total of 5197 Dutch dyads were included. The average age of the care receivers and caregivers was respectively 80.7 years and 63.2 years. Several sociodemographic, health-related and caregiving-related characteristics of care receiver and caregiver and two caregiver outcomes (i.e., subjective burden and care-related quality of life) were included in the analyses. RESULTS: Caregivers in both settings experienced comparable levels of subjective burden. Caregivers at home had slightly lower care-related quality of life than caregivers in ILTC. Several care receiver characteristics (i.e., male sex, married/cohabiting, more morbidities/disability, and less self-perceived health/psychological wellbeing) and several caregiver characteristics (i.e., female sex, being younger, living together with the care receiver, more objective burden, less self-perceived health, and more support) were associated with an increase in burden and/or a decrease in care-related quality of life. Some of these associations were stronger for dyads at home compared to dyads in ILTC. CONCLUSIONS: Informal caregiving does not stop with admission to an ILTC facility. Both settings need an informal caregiving policy, which is (1) tailored to the individual characteristics of care receivers and caregivers; (2) pays attention to the identified risk groups; and (3) reduces the negative caregiver outcomes and emphasizes the positive outcomes at the same time. PMID- 29017452 TI - Whole genome sequencing for the molecular characterization of carbapenem resistant Klebsiella pneumoniae strains isolated at the Italian ASST Fatebenefratelli Sacco Hospital, 2012-2014. AB - BACKGROUND: The emergence of carbapenem-resistant Klebsiella pneumoniae strains is threatening antimicrobial treatment. METHODS: Sixty-eight carbapenemase producing K. pneumoniae strains isolated at Luigi Sacco University Hospital-ASST Fatebenefratelli Sacco (Milan, Italy) between 2012 and 2014 were characterised microbiologically and molecularly. They were tested for drug susceptibility and carbapenemase phenotypes, investigated by means of repetitive extra-genic palindromic polymerase chain reaction (REP-PCR), and fully sequenced by means of next-generation sequencing for the in silico analysis of multi-locus sequence typing (MLST), their resistome, virulome and plasmid content, and their core single nucleotide polymorphism (SNP) genotypes. RESULTS: All of the samples were resistant to carbapenems, other beta-lactams and ciprofloxacin; many were resistant to aminoglycosides and tigecycline; and seven were resistant to colistin. Resistome analysis revealed the presence of blaKPC genes and, less frequently blaSHV, blaTEM, blaCTX-M and blaOXA, which are related to resistance to carbapenem and other beta-lactams. Other genes conferring resistance to aminoglycoside, fluoroquinolone, phenicol, sulphonamide, tetracycline, trimethoprim and macrolide-lincosamide-streptogramin were also detected. Genes related to AcrAB-TolC efflux pump-dependent and pump-independent tigecycline resistance mechanisms were investigated, but it was not possible to clearly correlate the genomic features with tigecycline resistance because of the presence of a common mutation in susceptible, intermediate and resistant strains. Concerning colistin resistance, the mgrB gene was disrupted by an IS5-like element, and the mobile mcr-1 and mcr-2 genes were not detected in two cases. The virulome profile revealed type-3 fimbriae and iron uptake system genes, which are important during the colonisation stage in the mammalian host environment. The in silico detected plasmid replicons were classified as IncFIB(pQil), IncFIB(K), ColRNAI, IncX1, IncX3, IncFII(K), IncN, IncL/M(pMU407) and IncFIA(HI1). REP-PCR showed five major clusters, and MLST revealed six different sequence types: 512, 258, 307, 1519, 745 and 101. Core SNP genotyping, which led to four clusters, correlated with the MLST data. Isolates of the same sequencing type often had common genetic traits, but the SNP analysis allowed greater strain tracking and discrimination than either the REP-PCR or MLST analysis. CONCLUSION: Our findings support the importance of implementing bacterial genomics in clinical medicine in order to complement traditional methods and overcome their limited resolution. PMID- 29017454 TI - Productivity losses and public finance burden attributable to breast cancer in Poland, 2010-2014. AB - BACKGROUND: Apart from the health and social burden of the disease, breast cancer (BC) has important economic implications for the sick, health system and whole economy. There has been a growing interest in the economic aspects of breast cancer and analyses of the disease costs seem to be the most explored topic. However, the results from these studies are hardly comparable. With this study we aim to contribute to the field by providing estimates of productivity losses and public finance burden attributable to BC in Poland. METHODS: We used retrospective prevalence-based top-down approach to estimate the productivity losses (indirect costs) of BC in Poland in the period 2010-2014. Human capital method (HCM) and societal perspective were used to estimate the costs of: absenteeism of the sick and caregivers, presenteeism of the sick and caregivers, disability, and premature mortality. We also used figures illustrating public finance burden attributable to the disease. Deterministic sensitivity analysis was performed to assess the stability of the estimates. A variety of data sources were used with the social insurance system and Polish National Cancer Registry being the most important ones. RESULTS: Productivity losses associated with BC in Poland were ?583.7 million in 2010 and they increased to ?699.7 million in 2014. Throughout the period these costs accounted for 0.162-0.171% of GDP, an equivalent of 62,531-65,816 per capita GDP. Losses attributable to disability and premature mortality proved to be the major cost drivers with 27.6%-30.6% and 22.0%-24.6% of the total costs respectively. The costs due to caregivers' presenteeism were negligible (0.1% of total costs). Public finance expenditure for social insurance benefits to BC sufferers ranged from ?50.2 million (2010) to ?56.6 million (2014), an equivalent of 0.72-0.79% of expenditures for all diseases. Potential losses in public finance revenues accounted for ?173.9 million in 2010 and ?211.0 million in 2014. Sensitivity analysis showed that the results were robust to changes in the model parameters. CONCLUSIONS: The productivity losses attributable to BC in Poland were a sizable burden for the society. They contributed both to decreased economy output and to public finance deficit. PMID- 29017455 TI - The EC90 of remifentanil for blunting cardiovascular responses to head fixation for neurosurgery under total intravenous anesthesia with propofol and remifentanil based on bispectral index monitoring: estimation with the biased coin up-and-down sequential method. AB - BACKGROUND: Head fixation can induce hemodynamic instability. Remifentanil is commonly used with propofol for total intravenous anesthesia (TIVA) during neurosurgery. This study investigated the 90% effective concentration (EC90) of remifentanil for blunting of cardiovascular responses to head fixation during neurosurgery via bispectral index (BIS) monitoring. METHODS: Fifty patients undergoing neurosurgery requiring head fixation were enrolled. This study was performed using the biased coin up-and-down design sequential method (BCD). After tracheal intubation, the effect-site target concentration (Ce) of remifentanil was adjusted to achieve hemodynamic stability and reset to the level preoperatively assigned to each patient, according to the BCD method, approximately 10 min before head fixation. Baseline hemodynamic values were recorded before head fixation. An ineffective response was defined as a case with a > 20% increase in hemodynamic values from baseline. Otherwise, the response was determined to be effective. The EC90 of remifentanil was calculated as a modified isotonic estimator. RESULTS: Forty-three patients completed this study. The EC90 of remifentanil for blunting cardiovascular responses to head fixation was estimated to be 6.48 ng/mL (95% CI, 5.94-6.83 ng/mL). CONCLUSIONS: Adjustment of the Ce of remifentanil to approximately 6.5 ng/mL before head fixation could prevent noxious cardiovascular responses in 90% of neurosurgical ASA I-II patients aged 20 to 65 years old during propofol target-controlled infusion titrated to maintain BIS between 40 and 50. TRIAL REGISTRATION: ClinicalTrials.gov Identifier NCT01489137 , retrospectively registered 5 December 2011. PMID- 29017456 TI - Prevalence and risk factors of hepatitis B infection among mothers and children with hepatitis B infected mother in upper Dolpa, Nepal. AB - BACKGROUND: Hepatitis B Virus (HBV) infection is a worldwide public health problem. In Nepal, the prevalence of HBV is found to be low (0.9%), although high prevalence (>=8%) of HBV infection is depicted among subgroup/population in the mountain region by various studies. This study assessed the prevalence and the risk of HBV infection among mothers, as well as among the youngest child under 5 years old living with hepatitis B positive mothers in Dolpa, the most remote mountain district of Nepal. METHODS: The cross sectional study survey was conducted between June and July 2014. All mothers with their youngest child under 5 years old were invited to participate in the survey and tested for hepatitis B surface antigen (HBsAg). The HBsAg positive mothers were further tested by 5 panel HBV test card. Children living with HBsAg positive mothers were also tested for HBsAg. RESULTS: One hundred fifty-one mothers, comprising 37% of the total study population in the selected Village Development Committees (VDCs), were surveyed in the mobile health camps. The seroprevalence of HBsAg among mothers and their youngest child under 5 years old living with HBsAg positive mothers were 17% (95% CI, 11.01-22.99%) and 48% (95%CI, 28.42-67.58%) respectively. The majority of HBV infected mothers were indigenous (84%) followed by Dalit (4%) and other castes (12%). Among HBV infected mothers, 40% were hepatitis B envelope antigen (HBeAg) positive. The prevalence of HBsAg was higher among children living with HBeAg positive mothers as compared to HBeAg negative (60% vs 40%) and male children compared to female (60% vs 33%). Thirty-six percent of children were vaccinated with a full course of the hepatitis B vaccine. Of these vaccinated children, 56% were HBsAg sero-positive. CONCLUSIONS: The HBV infection rate is high among mothers and children living with HBsAg positive mothers in the indigenous population of the most remote mountain community of Nepal. PMID- 29017457 TI - Evaluation of a pulsed xenon ultraviolet disinfection system to decrease bacterial contamination in operating rooms. AB - BACKGROUND: Environmental cleanliness is one of the contributing factors for surgical site infections in the operating rooms (ORs). To decrease environmental contamination, pulsed xenon ultraviolet (PX-UV), an easy and safe no-touch disinfection system, is employed in several hospital environments. The positive effect of this technology on environmental decontamination has been observed in patient rooms and ORs during the end-of-day cleaning but so far, no study explored its feasibility between surgical cases in the OR. METHODS: In this study, 5 high-touch surfaces in 30 ORs were sampled after manual cleaning and after PX-UV intervention mimicking between-case cleaning to avoid the disruption of the ORs' normal flow. The efficacy of a 1-min, 2-min, and 8-min cycle were tested by measuring the surfaces' contaminants by quantitative cultures using Tryptic Soy Agar contact plates. RESULTS: We showed that combining standard between-case manual cleaning of surfaces with a 2-min cycle of disinfection using a portable xenon pulsed ultraviolet light germicidal device eliminated at least 70% more bacterial load after manual cleaning. CONCLUSIONS: This study showed the proof of efficacy of a 2-min cycle of PX-UV in ORs in eliminating bacterial contaminants. This method will allow a short time for room turnover and a potential reduction of pathogen transmission to patients and possibly surgical site infections. PMID- 29017459 TI - An attention-based effective neural model for drug-drug interactions extraction. AB - BACKGROUND: Drug-drug interactions (DDIs) often bring unexpected side effects. The clinical recognition of DDIs is a crucial issue for both patient safety and healthcare cost control. However, although text-mining-based systems explore various methods to classify DDIs, the classification performance with regard to DDIs in long and complex sentences is still unsatisfactory. METHODS: In this study, we propose an effective model that classifies DDIs from the literature by combining an attention mechanism and a recurrent neural network with long short term memory (LSTM) units. In our approach, first, a candidate-drug-oriented input attention acting on word-embedding vectors automatically learns which words are more influential for a given drug pair. Next, the inputs merging the position- and POS-embedding vectors are passed to a bidirectional LSTM layer whose outputs at the last time step represent the high-level semantic information of the whole sentence. Finally, a softmax layer performs DDI classification. RESULTS: Experimental results from the DDIExtraction 2013 corpus show that our system performs the best with respect to detection and classification (84.0% and 77.3%, respectively) compared with other state-of-the-art methods. In particular, for the Medline-2013 dataset with long and complex sentences, our F-score far exceeds those of top-ranking systems by 12.6%. CONCLUSIONS: Our approach effectively improves the performance of DDI classification tasks. Experimental analysis demonstrates that our model performs better with respect to recognizing not only close-range but also long-range patterns among words, especially for long, complex and compound sentences. PMID- 29017458 TI - Lifestyle, gene gain and loss, and transcriptional remodeling cause divergence in the transcriptomes of Phytophthora infestans and Pythium ultimum during potato tuber colonization. AB - BACKGROUND: How pathogen genomes evolve to support distinct lifestyles is not well-understood. The oomycete Phytophthora infestans, the potato blight agent, is a largely biotrophic pathogen that feeds from living host cells, which become necrotic only late in infection. The related oomycete Pythium ultimum grows saprophytically in soil and as a necrotroph in plants, causing massive tissue destruction. To learn what distinguishes their lifestyles, we compared their gene contents and expression patterns in media and a shared host, potato tuber. RESULTS: Genes related to pathogenesis varied in temporal expression pattern, mRNA level, and family size between the species. A family's aggregate expression during infection was not proportional to size due to transcriptional remodeling and pseudogenization. Ph. infestans had more stage-specific genes, while Py. ultimum tended towards more constitutive expression. Ph. infestans expressed more genes encoding secreted cell wall-degrading enzymes, but other categories such as secreted proteases and ABC transporters had higher transcript levels in Py. ultimum. Species-specific genes were identified including new Pythium genes, perforins, which may disrupt plant membranes. Genome-wide ortholog analyses identified substantial diversified expression, which correlated with sequence divergence. Pseudogenization was associated with gene family expansion, especially in gene clusters. CONCLUSION: This first large-scale analysis of transcriptional divergence within oomycetes revealed major shifts in genome composition and expression, including subfunctionalization within gene families. Biotrophy and necrotrophy seem determined by species-specific genes and the varied expression of shared pathogenicity factors, which may be useful targets for crop protection. PMID- 29017460 TI - 27-gauge and 25-gauge vitrectomy day surgery for idiopathic epiretinal membrane. AB - BACKGROUND: This study compared the postoperative outcomes of 27-gauge (G) and 25 G vitrectomy performed for the treatment of idiopathic epiretinal membrane (ERM). METHODS: The study design was single center, retrospective, interventional case series. Two hundred consecutive eyes that underwent primary vitrectomy for ERM (27-G vitrectomy in 100 eyes and 25-G vitrectomy in 100 eyes) were studied for 6 months. In all eyes, scleral tunnels were made using angle incisions, and air or gas exchange was performed. RESULTS: There were no significant differences in age, spherical diopter power, as well as preoperative Early Treatment Diabetic Retinopathy Study (ETDRS) score, central retinal thickness (CRT), and intraocular pressure between the 27-G and 25-G groups. The proportions of simultaneous cataract surgery (27-G vs. 25-G: 82% vs. 90%), air-filled eyes (99% vs. 98%), and scleral wound suture at the end of surgery (0% vs. 0%) were not significantly different between two groups. The mean operation time for vitrectomy was significantly (P = 0.0322) longer by 4 min for 27-G (37 min) compared to 25-G (33 min) vitrectomy. Gain in ETDRS score was significantly (P = 0.0421) better in 27 G group (4.7 +/- 8.1 letters) compared to 25-G group (1.1 +/- 13.6 letters) at 1 month post-vitrectomy, but not significantly different at 3 and 6 months (P = 0.0835 and 0.0569, respectively). Decrease in CRT was significantly (P = 0.0354) greater in 27-G group (-24.2 +/- 50.0 MUm) compared to 25-G group (-8.0 +/- 48.6 MUm) at 1 month post-vitrectomy, but not significantly different at 3 and 6 months (P = 0.6059 and 0.1725, respectively). On postoperative day 1, hypotony (<= 6 mmHg) was observed in 2 eyes in 27-G group and 6 eyes in 25-G group, while ocular hypertension (>= 25 mmHg) was found in 4 eyes in 27-G group and 11 eyes in 25-G group, with no significant differences between two groups. Postoperative complications requiring treatment occurred in one eye (vitreous hemorrhage) in 27 G group, and in two eyes (vitreous hemorrhage and retinal detachment in one eye each) in 25-G group. CONCLUSIONS: Although 27-G vitrectomy requires operation time of 4 min longer compared to 25-G vitrectomy for ERM surgery, using the 27-G system results in earlier recovery of visual acuity, CRT improvement and stabilized ocular pressure. PMID- 29017461 TI - Feasibility and safety of early discharge after transfemoral transcatheter aortic valve implantation - rationale and design of the FAST-TAVI registry. AB - BACKGROUND: There is an increasing trend towards shorter hospital stays after transcatheter aortic valve implantation (TAVI), in particular for patients undergoing the procedure via transfemoral (TF) access. Preliminary data suggest that there exists a population of patients that can be discharged safely very early after TF-TAVI. However, current evidence is limited to few retrospective studies, encompassing relatively small sample sizes. METHODS: The Feasibility And Safety of early discharge after Transfemoral TAVI (FAST-TAVI) registry is a prospective observational registry that will be conducted at 10 sites across Italy, the Netherlands and the UK. Patients will be included if they have been scheduled to undergo TF-TAVI with the balloon-expandable SAPIEN 3 transcatheter heart valve (THV; Edwards Lifesciences, Irvine, CA). The primary endpoint is a composite of all-cause mortality, vascular-access-related complications, permanent pacemaker implantation, stroke, re-hospitalisation due to cardiac reasons, kidney failure and major bleeding, occurring during the first 30 days after hospital discharge. Patients will be stratified according to whether they were high or low risk for early discharge (<=3 days) (following pre-specified criteria), and according to whether or not they were discharged early. Secondary endpoints will include time-to-event (Kaplan-Meier) analysis for the primary outcome and its individual components, analysis of the relative costs of early and late discharge, and changes in short- and long-term quality of life. Multivariate logistic regression will be used to identify factors that indicate that a patient may be suitable for early discharge. DISCUSSION: The data gathered in the FAST-TAVI registry should help to clarify the safety of early discharge after TF-TAVI and to identify patient and procedural characteristics that make early discharge from hospital a safe and cost-effective strategy. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02404467 (registration first received March 23rd 2015). PMID- 29017462 TI - Vitamin D deficiency was common among nursing home residents and associated with dementia: a cross sectional study of 545 Swedish nursing home residents. AB - BACKGROUND: Residents of nursing homes may have low 25-hydroxyvitamin D (25OHD) concentrations. Associations between vitamin D and cognitive performance, dementia and susceptibility to infections are not clearly established. The aim of this study was to investigate the prevalence of vitamin D deficiency and to identify associated factors among residents of nursing homes for elderly. METHODS: In this cross-sectional study blood samples for analysis of 25OHD were collected from all participating residents of Swedish nursing homes for the elderly from January to March 2012. EXCLUSION CRITERIA: dementia too severe to collect a blood test, terminally ill or refusing participation. OUTCOME MEASURES: Serum 25OHD concentrations. Logistic regression to evaluate factors associated with vitamin D deficiency (25OHD < 25 nmol/L). RESULTS: Blood samples were obtained from 545 of 901 residents of 22 nursing homes. Mean age 86 years (SD 6.9), 68% were women. Prevalence of vitamin D supplementation 17%, dementia 55%, lack of appetite >=3 months 45% and any antibiotic treatment during the last 6 months 30%. Serum 25OHD concentrations: mean 34 nmol/L (SD 21, median 27, range 4 125), 82% (448/545) had 25OHD < 50 nmol/L and 41% (224/545) had 25OHD < 25 nmol/L. Adjusted OR (95% CI; p-value) for possible predictors of vitamin D deficiency (25OHD < 25 nmol/L): vitamin D supplementation 0.075 (0.031-0.18; p < 0.001), lack of appetite >=3 months 0.75 (0.50-1.1; p = 0.15), hours outdoors/week 0.99 (0.96-1.0; p = 0.62), Fitzpatrick skin phototype (4-6) 0.69 (0.44-1.1; p = 0.12); dementia 2.3 (1.5-3.4; p < 0.001) and antibiotics last 6 months 1.6 (1.1-2.6; p < 0.029), adjusted for age and gender. CONCLUSIONS: Vitamin D deficiency was common among nursing home residents and strongly associated with dementia. Regardless of causality or not, it is important to be alert for vitamin D deficiency in nursing homes residents with dementia. As expected vitamin D supplementation was associated with less vitamin D deficiency, however lack of appetite, staying outdoors and skin phototype were not significant predictors. Antibiotic treatments during the last 6 months were associated with vitamin D deficiency, potentially supporting the hypothesis that vitamin D deficiency is associated with infections. PMID- 29017463 TI - Subjective health expectations of patients with age-related macular degeneration treated with antiVEGF drugs. AB - BACKGROUND: Subjective expectations regarding future health may influence patients' judgement of current health and treatment effects, as well as adherence to therapies in chronic diseases. We aimed to explore subjective expectations on longevity and future health-related quality of life (HRQOL) of patients with age related macular degeneration (AMD) treated with antiVEGF injections and analyse the influencing factors. METHODS: Consecutive AMD patients in two ophthalmology centres were included. Demographics, clinical characteristics and informal care utilisation were recorded. Current health was evaluated by the EQ-5D generic health status questionnaire and time trade-off (TTO) methods. Happiness was measured on a visual analogue scale (VAS). Subjective life-expectancy and expected EQ-5D status at ages 70, 80 and 90 were surveyed. T-test was applied to compare subgroups and Pearson correlations were performed to analyse relationships between variables. RESULTS: One hundred twenty two patients were involved (females 62%) with a mean (SD) age of 75.2 (7.9) years and disease duration of 2.9 (2.5) years. The majority were in AREDS-4 state, the better eye's ETDRS was 64.7 (15.4). EQ-5D and TTO revealed moderate deterioration of health (0.66 vs. 0.72, p = 0.131), happiness VAS was 6.3 (2.2). Correlation between EQ 5D and ETDRS was moderate (R = 0.242, p < 0.05) and having both versus one eye in AREDS-4 resulted lower TTO (0.68 vs. 0.83; p = 0.013). Subjective life-expectancy did not differ significantly from statistical life-expectancy and had no significant impact on TTO. The self-estimated mean EQ-5D score was 0.60, 0.40 and 0.24 for ages 70, 80 and 90 which is lower than the population norm of age-groups 65-74, 75-84 and 85+ (0.77, 0.63 and 0.63, respectively). Age, gender, current EQ 5D, need for informal care and happiness were deterministic factors of subjective health expectations. CONCLUSION: AMD patients with antiVEGF treatment have comparable HRQOL as the age-matched general public but expect a more severe deterioration of health with age. Older patients with worse HRQOL have worse subjective expectations. Exploring patients' health expectations provides an opportunity for ophthalmologists to correct misperceptions and improve the quality of AMD care. Further studies should provide evidences on the relationship between subjective expectations and actual health outcomes, and on its impact on patients' AMD-specific health behaviour. PMID- 29017466 TI - Prevalence of antimicrobial resistant Escherichia coli from patients with suspected urinary tract infection in primary care, Denmark. AB - BACKGROUND: Escherichia coli is the most common pathogen causing Urinary Tract Infections (UTI). Data from the current National Surveillance program in Denmark (DANMAP) may not accurately represent the prevalence of resistant E. coli in primary care, because only urine samples from complicated cases may be forwarded to the microbiological departments at hospitals for diagnostic examination. The aim of this study was to assess the prevalence of resistant E. coli to the most commonly used antimicrobial agents in primary care in a consecutive sample of patients from general practice. METHODS: Observational study carried out from December 2014 to December 2015. Thirty-nine general practices from The Capital Region of Denmark included adult patients with urinary tract symptoms and suspected UTI. All urine samples were sent to the central laboratory Statens Serum Institut (SSI). Significant bacteriuria was interpreted according to the European Urinalysis Standards. Susceptibility testing was performed and interpreted according to the European Committee on Antimicrobial Susceptibility Testing (EUCAST) standards. RESULTS: From the 39 general practices 505 patients were recruited. Completed data were obtained from 485 (96%) patients. According to the European Urinalysis Standards, 261 (54%) patients had positive bacteriuria. The most common uropathogen in patients with uncomplicated (uUTI) and complicated (cUTI) urinary tract infection was E. coli 105 (69%) and 76 (70%), respectively. Eighty-two (45%) of 181 E. coli isolates were resistant to at least one of the tested antibiotics and 50 out of 82 isolates were resistant to two or more antimicrobial agents. The highest resistance-rate was found against ampicillin 34% (95% CI 24;42) in uUTI and 36% (24;46) in cUTI. There were no differences in the distribution of resistance between uncomplicated and complicated cases. The prevalence of resistance was similar to the one reported in DANMAP 2014. CONCLUSION: In E. coli from uUTI there is high resistance rates to antimicrobial agents commonly used in primary care. There was no difference in the distribution of resistant E. coli in suspected uUTI vs cUTI. In Denmark, data from the National Surveillance program DANMAP can guide the decision for choice of antibiotic in patients with suspected UTI seeking care in primary care. TRIAL REGISTRATION: ClinicalTrials.gov NCT02249273 . PMID- 29017464 TI - Respective contribution of the cephalic neural crest and mesoderm to SIX1 expressing head territories in the avian embryo. AB - BACKGROUND: Vertebrate head development depends on a series of interactions between many cell populations of distinct embryological origins. Cranial mesenchymal tissues have a dual embryonic source: - the neural crest (NC), which generates most of craniofacial skeleton, dermis, pericytes, fat cells, and tenocytes; and - the mesoderm, which yields muscles, blood vessel endothelia and some posterior cranial bones. The molecular players that orchestrate co development of cephalic NC and mesodermal cells to properly construct the head of vertebrates remain poorly understood. In this regard, Six1 gene, a vertebrate homolog of Drosophila Sine Oculis, is known to be required for development of ear, nose, tongue and cranial skeleton. However, the embryonic origin and fate of Six1-expressing cells have remained unclear. In this work, we addressed these issues in the avian embryo model by using quail-chick chimeras, cephalic NC cultures and immunostaining for SIX1. RESULTS: Our data show that, at early NC migration stages, SIX1 is expressed by mesodermal cells but excluded from the NC cells (NCC). Then, SIX1 becomes widely expressed in NCC that colonize the pre otic mesenchyme. In contrast, in the branchial arches (BAs), SIX1 is present only in mesodermal cells that give rise to jaw muscles. At later developmental stages, the distribution of SIX1-expressing cells in mesoderm-derived tissues is consistent with a possible role of this factor in the myogenic program of all types of head muscles, including pharyngeal, extraocular and tongue muscles. In NC derivatives, SIX1 is notably expressed in perichondrium and chondrocytes of the nasal septum and in the sclera, although other facial cartilages such as Meckel's were negative at the stages considered. Moreover, in cephalic NC cultures, chondrocytes and myofibroblasts, not the neural and melanocytic cells express SIX1. CONCLUSION: The present results point to a dynamic tissue-specific expression of SIX1 in a variety of cephalic NC- and mesoderm-derived cell types and tissues, opening the way for further analysis of Six1 function in the coordinated development of these two cellular populations during vertebrate head formation. PMID- 29017465 TI - Frequency of arrhythmia symptoms and acceptability of implantable cardiac monitors in Hemodialysis patients. AB - BACKGROUND: Arrhythmia-related complications and sudden death are common in dialysis patients. However, routine cardiac monitoring has so far not been feasible. Miniaturization of implantable cardiac monitors offers a new paradigm for detection and management of arrhythmias in dialysis patients. The goal of our study was to determine the frequency of arrhythmia-related symptoms in hemodialysis patients and to assess their willingness to undergo implantation of a cardiac monitor. METHODS: We conducted a survey of in-center hemodialysis patients at a hemodialysis clinic in Baltimore, Maryland. We assessed the frequency of arrhythmia-related symptoms and willingness to undergo placement of an implantable cardiac monitor (LINQ, Medtronic Inc.). RESULTS: Forty six patients completed the survey. The mean age of the survey respondents was 59 years and 65% were male. Symptoms were common with 74% (n = 34) of participants reporting at least one arrhythmia-related symptom and many [22% (n = 10)] had all 3 symptoms. Among the patients with symptoms, 57% (n = 26) reported "heart skipping beats, flopping in chest or beating very hard," 61% (n = 28) reported "heart racing (palpitations)," and 37% (n = 17) reported feeling that they "passed out or almost passed out." The majority of the patients felt that the timing of the symptoms was unrelated to dialysis treatments. The acceptability of the monitoring device implantation was high, with 59% (n = 20) of patients with symptoms and 50% (n = 6) of patients without symptoms willing to consider it. The main reason for not considering the device was not wanting to have an implanted device. CONCLUSION: The prevalence of arrhythmia-related symptoms is high in hemodialysis patients and the majority would consider an implantable cardiac monitor if recommended by their physicians. Routine implantation of cardiac monitoring devices to manage arrhythmias in dialysis patients may be feasible and will provide further insights on the leading causes of morbidity and mortality in dialysis patients. PMID- 29017468 TI - Case report: the first case of human infection by adult of SPIROMETRA ERINACEIEUROPAEI in VIETNAM. AB - BACKGROUND: Tapeworms of the genus Spirometra include species whose larval stages can infect humans, causing a disease called sparganosis. Cases of human infection with adult worms are very rare and have been reported in Korea and China. Here we report the first case of human infection with an adult of Spirometra erinaceieuropaei in Vietnam. CASE PRESENTATION: A 23-year-old male was admitted to 103 Military Hospital, Hanoi, Vietnam with fever, weight loss and epigastric discomfort. Preliminary diagnosis based on discovery of parasite eggs in his faeces incorrectly determined a fluke as the agent of the infection and praziquantel was prescribed. Two days later he passed out proglottids in his stool. The tapeworm was identified as Spirometra erinaceieuropaei using morphological and molecular tools. CONCLUSION: This is the first case of human infection with adult worm of Spirometra erinaceieuropaei in Vietnam. PMID- 29017467 TI - Association between very advanced maternal age and adverse pregnancy outcomes: a cross sectional Japanese study. AB - BACKGROUND: While several studies have demonstrated the increased risk of pregnancy complications for women of advanced age, few studies have focused on women with very advanced age (>= 45), despite the increasing rate of pregnancy among such women. Furthermore, how such risks of increase in age differ by maternal characteristics are also poorly understood. Thus, we aimed to clarify pregnant outcomes among women with very advanced age and how the effect of age differs by method of conception and parity. METHODS: We used the national multicenter Japan Society of Obstetrics and Gynecology perinatal database, including 365,417 women aged 30 years or older who delivered a singleton between 2005 and 2011. We divided women into four groups based on age (years): 30-34, 35 39, 40-44, and >=45, and compared risk of adverse birth outcomes between the groups using Poisson regression. Effect modification by parity and use of assisted reproductive technology (ART) was also evaluated. RESULTS: Compared with women aged 30-34 years, women aged 45 or older had higher risk of emergency cesarean delivery [adjusted risk ratio (aRR): 1.77, 95% confidence interval (95% CI): 1.58-1.99], preeclampsia (aRR: 1.86, 95% CI: 1.43-2.42), severe preeclampsia (aRR: 2.03, 95% CI: 1.31-3.13), placenta previa (aRR: 2.17, 95% CI: 1.60-2.95), and preterm birth (aRR: 1.20, 95% CI: 1.04-1.39). The effect of older age on risk of emergency cesarean section, preeclampsia, and preterm birth were significantly greater among those who conceived naturally compared to those who conceived by ART. The effect on emergency cesarean section was stronger among primiparous women, whereas the risk of preeclampsia associated with older age was significantly greater among multiparous women. CONCLUSIONS: Very advanced maternal age (>= 45) was related to greater risk for adverse birth outcomes compared to younger women, especially for maternal complications including cesarean section, preeclampsia, severe preeclampsia, and placenta previa. The magnitude of the influence of age also differed by conception method and by parity. PMID- 29017469 TI - Relationship between interpersonal sensitivity and leukocyte telomere length. AB - BACKGROUND: Telomeres are repetitive DNA sequences located at the ends of chromosomes, and telomere length represents a biological marker for cellular aging. Interpersonal sensitivity, excessive sensitivity to the behavior and feelings of others, is one of the vulnerable factors to depression. In the present study, we examined the effect of interpersonal sensitivity on telomere length in healthy subjects. METHODS: The subjects were 159 unrelated healthy Japanese volunteers. Mean age +/- SD (range) of the subjects was 42.3 +/- 7.8 (30 61) years. Interpersonal sensitivity was assessed by the Japanese version of the Interpersonal Sensitivity Measure (IPSM). Leukocyte telomere length was determined by a quantitative real-time PCR method. RESULTS: Higher scores of the total IPSM were significantly (beta = -0.163, p = 0.038) related to shorter telomere length. In the sub-scale analysis, higher scores of timidity were significantly (beta = -0.220, p = 0.044) associated with shorter telomere length. CONCLUSIONS: The present study suggests that subjects with higher interpersonal sensitivity have shorter leukocyte telomere length, implying that interpersonal sensitivity has an impact on cellular aging. PMID- 29017470 TI - Soil transmitted Helminthiasis and associated risk factors among elementary school children in ambo town, western Ethiopia. AB - BACKGROUND: Soil-transmitted helminths (STHs) are widespread in underdeveloped countries. In Ethiopia, the prevalence and distribution of helminth infection varies by different exposing risk factors. We therefore investigated the prevalence of and risk factors of STHs infection in school children living in Ambo town, west Shoa Ethiopia. METHODS: In 2014/15, among 375 school children planed to be included in this study, only 321 school children were recruited in the study. Data onto school children from different schools were collected, including stool samples for qualitative STHs analysis. Questionnaire data on various demographic, housing and lifestyle variables were also available. RESULTS: Prevalence of any STHs infection was 12.6%. The respective prevalence of major soil-transmitted helminths is Ascaris (7.8%), Hookworm (2.8%) and Trichuris (2.2%). This study result shows STHs prevalence varies regards to age, sex, latrine use, family size and nail trimming. CONCLUSION: The results of the present study indicated that the percentage of positive finding for STHs in Ambo area is low. Besides, Large Family size, not nail trimming and unavailability of improved latrine were identified as predisposing factor for STHs infections. All school children enrolled and not enrolled in this study should be treated twice a year until the prevalence falls below the level of public health importance. PMID- 29017471 TI - Self-admission to inpatient treatment in psychiatry: lessons on implementation. AB - BACKGROUND: Interest has increased in programs offering self-admission to inpatient treatment for patients with severe psychiatric illness, whereby patients who are well-known to a service are afforded the opportunity to admit themselves at will for a brief period of time. The aim of the present study was to examine patient experiences of practical considerations during the start-up phase of a self-admission program in an eating disorder service. METHODS: Sixteen adult participants in a self-admission program at a specialist eating disorders service were interviewed at 6 months about their experiences during the implementation phase. A qualitative content analysis approach was applied in order to identify recurring themes. RESULTS: Six subcategories regarding implementation and logistics of self-admission were identified: "Start-up problems", "Problems associated with reserving a bed", "Lack of staff continuity", "Not enough emphasis on long-term goals", "Too demanding in terms of freedom and responsibility", and "Suggestions for alternative models". CONCLUSIONS: Practical recommendations can be offered for the implementation of future self-admission programs, such as thoroughly informing all participants about the rationale behind self-admission with particular emphasis on patient accountability, establishing a waiting list procedure for occasions when all designated beds are occupied, and assigning an individual contact staff member responsible for each self-admitted patient. TRIAL REGISTRATION: The study protocol is retrospectively registered at ClinicalTrials.gov as ID: NCT02937259 . PMID- 29017472 TI - Knowledge, attitude and behaviour towards the use of insecticide treated mosquito nets among pregnant women and children in rural Southwestern Uganda. AB - BACKGROUND: The burden of malaria in Uganda remains unacceptably high, especially among children and pregnant women. To prevent malaria related complications, household possession and use of Insecticide Treated mosquito Nets (ITNs) has become a common practice in the country. Despite the availability of ITNs, malaria remains a foremost public health concern in Uganda. We sought to explore knowledge, attitude, and behaviour towards the use of ITNs as a nightly malaria prevention strategy among pregnant women and children under five years of age in Isingiro district, Southwestern Uganda. MATERIALS AND METHODS: This was a community based, descriptive cross-sectional study, in which households with children under 5 years, and/or pregnant women were enrolled. We used a structured questionnaire to collect data on participants' understanding of the causes, signs and symptoms of malaria; use of ITNs to prevent malaria; attitudes and behaviours towards the use of ITNs. We also conducted key informant interviews (KIIs) to get in-depth understanding of responses from the participants. We analysed quantitative data using STATA version 12.Qualitative findings from the KIIs were transcribed and translated, and manually analysed using thematic content analysis. RESULTS: Of the 369 households enrolled, 98.4% (N = 363) households had children under five. Most participants (41.2%, N = 152) were in the 21-30 age category (mean age; 32.2 years). 98.1% (N = 362) of the respondents considered ITNs a key malaria prevention strategy. The ITN possession rate was 84.0% (N = 310), of these, 66.1% (N = 205) consistently used them. 39% of the respondents did not have a positive attitude towards ITNs. CONCLUSIONS: Although 84.0% of the respondents possessed ITNs, many were not consistently using them. To this, there is need to engage all stakeholders (including cultural leaders, community health workers, religious leaders and the government) in the malaria prevention campaigns using ITNs through: a) government's concerted effort to ensure universal access of right fit ITNs, b) end-user directed health education to emphasize positive attributes of ITN use, c) telling the ITN success stories to improve on the usage. PMID- 29017473 TI - Australian consumer perspectives, attitudes and behaviours on antibiotic use and antibiotic resistance: a qualitative study with implications for public health policy and practice. AB - BACKGROUND: Consumers receive over 27 million antibiotic prescriptions annually in Australian primary healthcare. Hence, consumers are a key group to engage in the fight against antibiotic resistance. There is a paucity of research pertaining to consumers in the Australian healthcare environment. This study aimed to investigate the perspectives, attitudes and behaviours of Australian consumers on antibiotic use and antibiotic resistance, to inform national programs for reducing inappropriate antibiotic consumption. METHOD: Semi structured interviews with 32 consumers recruited via convenience and snowball sampling from a university population in South East Queensland. Interview transcripts were deductively and inductively coded. Main themes were identified using iterative thematic analysis. RESULTS: Three themes emerged from the analysis, to elucidate factors affecting antibiotic use: (a) prescription type; (b) consumer attitudes, behaviours, skills and knowledge; and (c) consumer engagement with antibiotic resistance. Consumers held mixed views regarding the use of delayed antibiotic prescriptions, and were often not made aware of the use of repeat antibiotic prescriptions. Consumers with regular general practitioners were more likely to have shared expectations regarding minimising the use of antibiotics. Even so, advice or information mediated by general practitioners was influential with all consumers; and helped to prevent inappropriate antibiotic use behaviours. Consumers were not aware of the free Return of Unwanted Medicines service offered by pharmacies and disposed of leftover antibiotics through household waste. To engage with mitigating antibiotic resistance, consumers required specific information. Previous public health campaigns raising awareness of antibiotics were largely not seen by this sample of consumers. CONCLUSIONS: Australian consumers have specific information needs regarding prescribed antibiotics to enable appropriate antibiotic use behaviours. Consumers also have expectations for high quality general practice consults conducted in a manner that increases consumer confidence in the treatment decision, regardless of whether an antibiotic is prescribed. To reduce inappropriate consumption of antibiotics and to more fully engage Australian consumers in mitigating antibiotic resistance, changes in health policy and practice are required. PMID- 29017474 TI - The disease burden of suicide in Ecuador, a 15 years' geodemographic cross sectional study (2001-2015). AB - BACKGROUND: Suicide affects people from different backgrounds, ethnical groups, socio-economic status and geographical locations. In Latin America, suicide reports arescarce, specially in Andean countries. In Ecuador, very few reports have partially described this phenomenon, nonetheless, estimation of the burden of disease (BoD) hasnever been reported in the country. METHODS: A country-wide comparison was performed using the Ministry of Public Health's national databases of overall mortality, Hospital Discharges Database, and the Population Census of the National Institute of Census and Statistics (INEC). The study variables analyzed were age, geographical distribution to provincial level, sex, means of suicide, educational attainment, marital status and mortality. Linear Regression and relative Risk analysis were used to predict outcome and the likelihood that suicide occur among study variables. RESULTS: In the last 15 years, 13,024 suicides were officially reported. Men were 3 times more likely than women to die by suicide. The overall age-adjusted suicide ratio in Ecuador corresponds to 7.1 per 100,000 per year. The sex-specific rates were 5.3 in women and 13.2 in men. The primary mean of suicide was hanging X70 (51.1%), followed by self-poisoning X68-X69 (35.2%) and firearms X72-X74 (7.6%). Provinces located at higher altitude reported higher rates than those located at sea level (9 per 100,000 vs 4.5 per 100.000). The total economic loss due to suicide was estimated to be $852.6 million during the 15 years' analysis. CONCLUSIONS: This is the first geodemographic study exploring the complete burden of suicide in Ecuador and one of the very few in Latin-America. In the last 15 years of available data, Ecuador ranks above the regional average with an adjusted suicide rate of 7.1 per 100,000 inhabitants. An important finding is that Suicide affects rather younger populations, adding more than 10,000 years of premature years of life lost (YYL) between 2001 and 2015, becoming the first and fourth leading cause of death among adolescent women and men respectively. Suicide affects people from different backgrounds, socioeconomic status and educational attainment. The mean of suicide changed over time showing that gun and pesticides related deaths decreased significantly since 2001, while hanging and suffocation increased in more than 50%. PMID- 29017475 TI - Reliability, validity and responsiveness of the German self-reported foot and ankle score (SEFAS) in patients with foot or ankle surgery. AB - BACKGROUND: Patient-reported outcome measures are a critical tool in evaluating the efficacy of orthopedic procedures and are increasingly used in clinical trials to assess outcomes of health care. The intention of this study was to develop and culturally adapt a German version of the Self-reported Foot and Ankle Score (SEFAS) and to evaluate reliability, validity and responsiveness. METHODS: According to Cross Cultural Adaptation of Self-Reported Measure guidelines forward and backward translation has been performed. The German SEFAS was investigated in 177 consecutive patients. 177 Patients completed the German SEFAS, Foot and Ankle Outcome Score (FAOS), Short-Form 36 and numeric scales for pain and disability (NRS) before and 118 patients 6 months after foot or ankle surgery. Test-Retest reliability, internal consistency, floor and ceiling effects, construct validity and minimal important change were analyzed. RESULTS: The German SEFAS demonstrated excellent test-retest reliability with ICC values of 0.97. Cronbach's alpha (alpha) value of 0.89 demonstrated strong internal consistency. No floor or ceiling effects were observed for the German version of the SEFAS. As hypothesized SEFAS correlated strongly with FAOS and SF-36 domains. It showed moderate (ES/SRM > 0.5) responsiveness between preoperative assessment and postoperative follow-up. CONCLUSION: The German version of the SEFAS demonstrated good psychometric properties. It proofed to be a valid and reliable instrument for use in foot and ankle patients. TRIAL REGISTRATION: DRKS00007585. PMID- 29017476 TI - The relationship between preoperative American Society of Anesthesiologists Physical Status Classification scores and functional recovery following hip fracture surgery. AB - BACKGROUND: Little is known about the relationship of the American Society of Anesthesiologists Physical Status Classification scores (ASA scores) on patient outcomes following hip fracture surgery in Asian countries. Therefore, this study explored the association of patients' preoperative ASA scores on trajectories of recovery in physical functioning and health outcomes during the first year following postoperative discharge for older adults with hip-fracture surgery in Taiwan. METHODS: The data for this study was generated from three prior studies. Participants (N = 226) were older hip-fracture patients from an observational study (n = 86) and two clinical trials (n = 61 and n = 79). Participants were recruited from the trauma wards of one medical center in northern Taiwan and data was collected prior to discharge and at 1, 3, 6, and 12 months after hospital discharge. Participants were grouped as ASA class 1-2 (50.5%; ASA Class 1, n = 7; ASA Class 2, n = 107) and ASA class 3 (49.5%, n = 112). Measures for mortality, service utilization, activities of daily living (ADL), measured by the Chinese Barthel Index, and health related quality of life, measured by Medical Outcomes Study Short Form-36, were assessed for the two groups. Generalized estimating equations (GEE) were used to analyze the changes over time for the two groups. RESULTS: During the first year following hip-fracture surgery, ASA class 1-2 participants had significantly fewer rehospitalizations (6%, p = .02) and better scores for mental health (mean = 70.29, standard deviation = 19.03) at 6- and 12 months following discharge than those classified as ASA 3. In addition, recovery of walking ability (70%, p = .001) and general health (adjusted mean = 58.31, p = .003) was also significantly better than ASA 3 participants. CONCLUSIONS: There was a significant association of hip-fracture patients classified as ASA 1-2 with better recovery and service utilization during the first year following surgery. Interventions for hip fractured patients with high ASA scores should be developed to improve recovery and quality of life. PMID- 29017477 TI - Mechanism of worsening diabetic retinopathy with rapid lowering of blood glucose: the synergistic hypothesis. AB - Insulin treatment has been associated with a paradoxical worsening of diabetes retinopathy since many years in European cohorts. Recently, this issue has been stressed by some studies conducted in other parts of the world. However, the mechanism underlying such evolution is not well understood. An osmotic theory has been evocated but failed to explain the clinical features of the disease. Considering recent findings from basic and clinical research, we discuss the possibility of a synergistic hypothesis based on the simultaneous action of insulin and vascular endothelial growth factor on eye blood vessels. We postulate that exogenous insulin could act synergistically with the vascular endothelial growth factor expressed by ischemic retina so as to trigger vascular proliferation and the worsening of diabetes retinopathy. PMID- 29017478 TI - Effectiveness of pulmonary rehabilitation in patients with interstitial lung disease of different etiology: a multicenter prospective study. AB - BACKGROUND: Recent evidences show that Pulmonary Rehabilitation (PR) is effective in patients with Interstitial Lung Disease (ILD). It is still unclear whether disease severity and/or etiology might impact on the reported benefits. We designed this prospective study 1) to confirm the efficacy of rehabilitation in a population of patients with ILDs and 2) to investigate whether baseline exercise capacity, disease severity or ILD etiology might affect outcomes. METHODS: Forty one patients (IPF 63%, age 66.9 +/- 11 ys) were enrolled in a standard PR course in two centers. Lung function, incremental and endurance cyclo-ergometry, Six Minutes Walking Distance (6MWD), chronic dyspnea (Medical Research Council scale MRC) and quality of life (St. George Respiratory Questionnaire-SGRQ) were recorded before and at the end of PR to measure any pre-to-post change. Correlation coefficients between the baseline level of Diffuse Lung Capacity for Carbon monoxide (DLCO), Forced Vital Capacity (FVC), 6MWD, power developed during incremental endurance test, GAP index (in IPF patients only) and etiology (IPF or non-IPF) with the functional improvement at the 6MWDT (meters), at the incremental and endurance cyclo-ergometry (endurance time) and the HRQoL were assessed. RESULTS: Out of the 41 patients, 97% (n = 40) completed the PR course. Exercise performance (both at peak load and submaximal effort), symptoms (iso time dyspnea and leg fatigue), SGRQ and MRC significantly improved after PR (p < .001). Patients with lower baseline 6MWD showed greater improvement in 6MWD (Spearman r score = - .359, p = .034) and symptoms relief at SGRQ (r = -.315, p = .025) regardless of underlying disease. CONCLUSION: Present study confirms that comprehensive rehabilitation is feasible and effective in patients with ILD of different severity and etiology. The baseline submaximal exercise capacity inversely correlates with both functional and symptom gains in this heterogeneous population. PMID- 29017479 TI - Psychosocial benefits of workplace physical exercise: cluster randomized controlled trial. AB - BACKGROUND: While benefits of workplace physical exercise on physical health is well known, little is known about the psychosocial effects of such initiatives. This study evaluates the effect of workplace versus home-based physical exercise on psychosocial factors among healthcare workers. METHODS: A total of 200 female healthcare workers (Age: 42.0, BMI: 24.1) from 18 departments at three hospitals were cluster-randomized to 10 weeks of: 1) home-based physical exercise (HOME) performed alone during leisure time for 10 min 5 days per week or 2) workplace physical exercise (WORK) performed in groups during working hours for 10 min 5 days per week and up to 5 group-based coaching sessions on motivation for regular physical exercise. Vitality and mental health (SF-36, scale 0-100), psychosocial work environment (COPSOQ, scale 0-100), work- and leisure disability (DASH, 0 100), control- (Bournemouth, scale 0-10) and concern about pain (Pain Catastrophizing Scale, scale 0-10) were assessed at baseline and at 10-week follow-up. RESULTS: Vitality as well as control and concern about pain improved more following WORK than HOME (all p < 0.05) in spite of increased work pace (p < 0.05). Work- and leisure disability, emotional demands, influence at work, sense of community, social support and mental health remained unchanged. Between-group differences at follow-up (WORK vs. HOME) were 7 [95% confidence interval (95% CI) 3 to 10] for vitality, -0.8 [95% CI -1.3 to -0.3] for control of pain and -0.9 [95% CI -1.4 to -0.5] for concern about pain, respectively. CONCLUSIONS: Performing physical exercise together with colleagues during working hours was more effective than home-based exercise in improving vitality and concern and control of pain among healthcare workers. These benefits occurred in spite of increased work pace. TRIAL REGISTRATION: NCT01921764 at ClinicalTrials.gov . Registered 10 August 2013. PMID- 29017481 TI - Cognitive behavioral group therapy for patients with physical diseases and comorbid depressive or adjustment disorders on a waiting list for individual therapy: results from a randomized controlled trial. AB - BACKGROUND: Depressive and adjustment disorders are highly prevalent in patients with physical diseases and are associated with poorer quality of life, increased morbidity and mortality, as well as higher healthcare costs. Access to mental health care holds strong importance for these patients, although waiting times for outpatient individual psychotherapy in Germany are often long. Attending an intervention while waiting for individual therapy could improve this problem. For this purpose, we developed an eight-session cognitive behavioral group therapy (STEpS) and tested its efficacy in a randomized controlled trial. METHODS: Seventy-six patients with chronic physical diseases and comorbid depressive or adjustment disorders were randomized to either STEpS or a waiting list control group. The primary outcome was self-reported depression measured by the Hospital Anxiety and Depression Scale (HADS-D), while the secondary outcomes included global psychological distress and health-related quality of life. Data was assessed at baseline, post-treatment and 2-month follow-up and was analyzed based on intention-to-treat. RESULTS: Compared to the control group, the STEpS group showed significantly less depression (d = 0.37; p = .009) and significantly higher quality of life (mental: d = 0.47; p = .030; physical: d = 0.70; p = .001) at post-treatment. The groups did not differ in global psychological distress. At 2-month follow-up, the STEpS group indicated significantly higher subjective physical health (d = 0.43; p = .046), but did not differ from the control group in the remaining outcomes. CONCLUSIONS: STEpS proved effective in improving depression and health-related quality of life in the short term but did not reveal effects on mental outcomes at 2-month follow-up. Nonetheless, the implementation of STEpS as a waiting list intervention prior to individual therapy could help patients to handle long waiting periods in outpatient care. TRIAL REGISTRATION: German Clinical Trials Register DRKS00005140 (27 August 2013). PMID- 29017480 TI - Longitudinal assessment of daily activity patterns on weight change after involuntary job loss: the ADAPT study protocol. AB - BACKGROUND: The World Health Organization has identified obesity as one of the most visible and neglected public health problems worldwide. Meta-analytic studies suggest that insufficient sleep increases the risk of developing obesity and related serious medical conditions. Unfortunately, the nationwide average sleep duration has steadily declined over the last two decades with 25% of U.S. adults reporting insufficient sleep. Stress is also an important indirect factor in obesity, and chronic stress and laboratory-induced stress negatively impact sleep. Despite what we know from basic sciences about (a) stress and sleep and (b) sleep and obesity, we know very little about how these factors actually manifest in a natural environment. The Assessing Daily Activity Patterns Through Occupational Transitions (ADAPT) study tests whether sleep disruption plays a key role in the development of obesity for individuals exposed to involuntary job loss, a life event that is often stressful and disrupting to an individual's daily routine. METHODS: This is an 18-month closed, cohort research design examining social rhythms, sleep, dietary intake, energy expenditure, waist circumference, and weight gain over 18 months in individuals who have sustained involuntary job loss. Approximately 332 participants who lost their job within the last 3 months are recruited from flyers within the Arizona Department of Economic Security (AZDES) Unemployment Insurance Administration application packets and other related postings. Multivariate growth curve modeling will be used to investigate the temporal precedence of changes in social rhythms, sleep, and weight gain. DISCUSSION: It is hypothesized that: (1) unemployed individuals with less consistent social rhythms and worse sleep will have steeper weight gain trajectories over 18 months than unemployed individuals with stable social rhythms and better sleep; (2) disrupted sleep will mediate the relationship between social rhythm disruption and weight gain; and (3) reemployment will be associated with a reversal in the negative trajectories outlined above. Positive findings will provide support for the development of obesity prevention campaigns targeting sleep and social rhythms in an accessible subgroup of vulnerable individuals. PMID- 29017482 TI - Gender differences in factors associated with smartphone addiction: a cross sectional study among medical college students. AB - BACKGROUND: Smartphones are becoming increasingly indispensable in everyday life for most undergraduates in China, and this has been associated with problematic use or addiction. The aim of the current study was to investigate the prevalence of smartphone addiction and the associated factors in male and female undergraduates. METHODS: This cross-sectional study was conducted in 2016 and included 1441 undergraduate students at Wannan Medical College, China. The Smartphone Addiction Scale short version (SAS-SV) was used to assess smartphone addiction among the students, using accepted cut-offs. Participants' demographic, smartphone usage, and psycho-behavioral data were collected. Multivariate logistic regression models were used to seek associations between smartphone addiction and independent variables among the males and females, separately. RESULTS: The prevalence of smartphone addiction among participants was 29.8% (30.3% in males and 29.3% in females). Factors associated with smartphone addiction in male students were use of game apps, anxiety, and poor sleep quality. Significant factors for female undergraduates were use of multimedia applications, use of social networking services, depression, anxiety, and poor sleep quality. CONCLUSIONS: Smartphone addiction was common among the medical college students investigated. This study identified associations between smartphone usage, psycho-behavioral factors, and smartphone addiction, and the associations differed between males and females. These results suggest the need for interventions to reduce smartphone addiction among undergraduate students. PMID- 29017484 TI - Solar UV exposure among outdoor workers in Denmark measured with personal UV-B dosimeters: technical and practical feasibility. AB - BACKGROUND: Exposure to solar ultraviolet radiation is a well-known cause of skin cancer. This is problematic for outdoor workers. In Denmark alone, occupational skin cancer poses a significant health and safety risk for around 400,000 outdoor workers. Objective measures of solar ultraviolet radiation exposure are needed to help resolve this problem. This can be done using personal ultraviolet radiation dosimeters. METHODS: We consider technical and practical feasibility of measuring individual solar ultraviolet exposure at work and leisure in professions with different a priori temporal high-level outdoor worktime, using aluminium gallium nitride (AlGaN) photodiode detector based personal UV-B dosimeters. Essential technical specifications including the spectral and angular responsivity of the dosimeters are described and pre-campaign dosimeter calibration applicability is verified. The scale and conduct of dosimeter deployment and campaign in-field measurements including failures and shortcomings affecting overall data collection are presented. RESULTS: Nationwide measurements for more than three hundred and fifty workers from several different professions were collected in the summer of 2016. On average, each worker's exposure was measured for a 2-week period, which included both work and leisure. Data samples of exposure at work during a Midsummer day show differences across professions. A construction worker received high-level occupational UV exposure most of the working day, except during lunch hour, accumulating to 5.1 SED. A postal service worker was exposed intermittently around noon and in the afternoon, preceded by no exposure forenoon when packing mail, accumulating to 1.6 SED. A crane fitter was exposed only during lunch hour, accumulating to 0.7 SED. These findings are in line with our specialist knowledge as occupational physicians. CONCLUSIONS: Large-scale use of personal UV-B dosimeters for measurement of solar ultraviolet radiation exposure at work and leisure in Denmark is indeed feasible from a technical and practical viewpoint. Samples of exposure data shown support the presumption that the Danish campaign UV-B dosimeter measurement dataset can be used to sum and compare exposure between groups of professions with reliable results to be used in future analysis with clinical as well as epidemiological/questionnaire data. This was despite some dosimeter failures and shortcomings. PMID- 29017483 TI - Co-infection of Schistosoma mansoni/hepatitis C virus and their associated factors among adult individuals living in fishing villages, north-western Tanzania. AB - BACKGROUND: Schistosoma mansoni and Hepatitis C virus (HCV) are co-existence in sub-Saharan Africa and co-infection is common among humans population. The immunological responses characterized with Th2-immune responses for S. mansoni and Th1-immune responses for HCV are responsible for development hepatic morbidities in infected individuals. However, the co-occurrences of S. mansoni and HCV infection, their related ultrasound detectable morbidities and associated risk factors at community levels have not been examined in fishing communities, north-western Tanzania. In this context, the present study covers that gap. METHODS: A cross-sectional study was conducted among 1924 asymptomatic individuals aged 15-55 years in four fishing villages (Igombe, Igalagala, Sangabuye and Kayenze) of Northwestern Tanzania. A single stool sample was collected from each study participants and examined for S. mansoni eggs using Kato Katz technique. Hepatitis C surface antigen (HCVsAg) was determined from a finger prick blood sample using a rapid test. RESULTS: Overall, 51.8% (997/1924; 95%CI: 49.6-54.1) of the study participants were infected with S. mansoni and had a mean intensity of 223.7epg (95%; 202.4-247.1). Of the study participants, 90 (4.7%) were infected with hepatitis C virus (HCV). Overall, 2. 4% (47/1924) of the study participants were co-infected with S. mansoni and hepatitis C virus. Among the co-infected individuals, 42.6%, 70.2% and 19.1% had splenomegaly, hepatomegaly and periportal fibrosis (PPF). Factors associated with S. mansoni/HCV co-infection were being aged 26-35 years (aRR = 2.67, 95%CI: 1.03 6.93, P < 0.04), 46-55 years (aRR = 2.89, 95%CI: 1.10-7.57, P < 0.03) and having marked hepatomegaly (aRR = 2.32, 95%CI: 1.09-4.9, P < 0.03). CONCLUSION: In this setting, S. mansoni and Hepatitis C are co-endemic and a proportion of individuals were co-infected. Hepatosplenic morbidities characterized with hepatomegaly, splenomegaly, hepatosplenomegaly and PPF were observed in co infected individuals. These results highlight the need for integrated interventions measures against parasitic and viral diseases. PMID- 29017485 TI - Bidens pilosa Ethylene acetate extract can protect against L-NAME-induced hypertension on rats. AB - BACKGROUND: Essential hypertension is mainly caused by endothelial dysfunction which results from nitric oxide (NO) deficiency. The present study was design to evaluate the protective effect of Bidens pilosa ethylene acetate extract (Bp) on L-NAME induced hypertension and oxidative stress in rats. METHODS: Male Wistar rats were used to induce hypertension by the administration of L-NAME (a non pecific nitric oxide inhibitor) (50 mg/kg/day). The others groups were receiving concomitantly L-NAME plus Bp extract (75 and 150 mg/kg/day) or losartan (25 mg/kg/day). All the treatments were given orally for 4 weeks. At the end of the treatment, the hemodynamic parameters were recorded using the direct cannulation method. The effects of the extract on lipid profile, kidney and liver functions as well as oxidative stress markers were evaluated by colorimetric method. Results were expressed as the mean +/- SEM. The difference between the groups was compared using one-way analysis of variance (ANOVA) followed by the Duncan's post hoc test. RESULTS: Animals receiving L-NAME presented high blood pressure, normal heart rate and lipid profile as well as NO depletion, liver and kidney injuries and oxidative stress. The concomitant treatment with L-NAME and Bp or losartan succeeded to prevent the raised of blood pressure and all the other injuries without affecting the heart rate. CONCLUSION: These results confirm the antihypertensive effects of Bidens pilosa and highlight its protective properties in L-NAME model of hypertension in rat, probably due to the presence of Quercetin 3,3 '-dimethyl ether 7-0-beta-D-glucopyranoside. PMID- 29017486 TI - Limits to human enhancement: nature, disease, therapy or betterment? AB - BACKGROUND: New technologies facilitate the enhancement of a wide range of human dispositions, capacities, or abilities. While it is argued that we need to set limits to human enhancement, it is unclear where we should find resources to set such limits. DISCUSSION: Traditional routes for setting limits, such as referring to nature, the therapy-enhancement distinction, and the health-disease distinction, turn out to have some shortcomings. However, upon closer scrutiny the concept of enhancement is based on vague conceptions of what is to be enhanced. Explaining why it is better to become older, stronger, and more intelligent presupposes a clear conception of goodness, which is seldom provided. In particular, the qualitative better is frequently confused with the quantitative more. We may therefore not need "external" measures for setting its limits - they are available in the concept of enhancement itself. While there may be shortcomings in traditional sources of limit setting to human enhancement, such as nature, therapy, and disease, such approaches may not be necessary. The specification-of-betterment problem inherent in the conception of human enhancement itself provides means to restrict its unwarranted proliferation. We only need to demand clear, sustainable, obtainable goals for enhancement that are based on evidence, and not on lofty speculations, hypes, analogies, or weak associations. Human enhancements that specify what will become better, and provide adequate evidence, are good and should be pursued. Others should not be accepted. PMID- 29017487 TI - Curcumin is a promising inhibitor of genotype 2 porcine reproductive and respiratory syndrome virus infection. AB - BACKGROUND: Porcine reproductive and respiratory syndrome virus (PRRSV) could lead to pandemic diseases and huge financial losses to the swine industry worldwide. Curcumin, a natural compound, has been reported to serve as an entry inhibitor of hepatitis C virus, chikungunya virus and vesicular stomatitis virus. In this study, we investigated the potential effect of curcumin on early stages of PRRSV infection. RESULTS: Curcumin inhibited infection of Marc-145 cells and porcine alveolar macrophages (PAMs) by four different genotype 2 PRRSV strains, but had no effect on the levels of major PRRSV receptor proteins on Marc-145 cells and PAMs or on PRRSV binding to Marc-145 cells. However, curcumin did block two steps of the PRRSV infection process: virus internalization and virus mediated cell fusion. CONCLUSIONS: Our results suggested that an inhibition of genotype 2 PRRSV infection by curcumin is virus strain-independent, and mainly inhibited by virus internalization and cell fusion mediated by virus. Collectively, these results demonstrate that curcumin holds promise as a new anti PRRSV drug. PMID- 29017489 TI - Erratum to: BMC Palliative Care, Vol. 17. PMID- 29017488 TI - Understanding collaborative care implementation in the Department of Veterans Affairs: core functions and implementation challenges. AB - BACKGROUND: The collaborative care model is an evidence-based practice for treatment of depression in which designated care managers provide clinical services, often by telephone. However, the collaborative care model is infrequently adopted in the Department of Veterans Affairs (VA). Almost all VA medical centers have adopted a co-located or embedded approach to integrating mental health care for primary care patients. Some VA medical centers have also adopted a telephone-based collaborative care model where depression care managers support patient education, patient activation, and monitoring of adherence and progress over time. This study evaluated two research questions: (1) What does a dedicated care manager offer in addition to an embedded-only model? (2) What are the barriers to implementing a dedicated depression care manager? METHODS: This study involved 15 qualitative, multi-disciplinary, key informant interviews at two VA medical centers where reimbursement options were the same- both with embedded mental health staff, but one with a depression care manager. Participant interviews were recorded and transcribed. Thematic analysis was used to identify descriptive and analytical themes. RESULTS: Findings suggested that some of the core functions of depression care management are provided as part of embedded only mental health care. However, formal structural attention to care management may improve the reliability of care management functions, in particular monitoring of progress over time. Barriers to optimal implementation were identified at both sites. Themes from the care management site included finding assertive care managers to hire, cross-discipline integration and collaboration, and primary care provider burden. Themes from interviews at the embedded site included difficulty getting care management on leaders' agendas amidst competing priorities and logistics (staffing and space). CONCLUSIONS: Providers and administrators see depression care management as a valuable healthcare service that improves patient care. Barriers to implementation may be addressed by team building interventions to improve cross-discipline integration and communication. Findings from this study are limited in scope to the VA healthcare system. Future investigation of whether alternative barriers exist in implementation of depression care management programs in non-VA hospital systems, where reimbursement rates may be a more prominent concern, would be valuable. PMID- 29017490 TI - Germline mutation within COL2A1 associated with lethal chondrodysplasia in a polled Holstein family. AB - BACKGROUND: The bulldog calf syndrome is a lethal form of the inherited congenital chondrodysplasias. Among the progeny of the polled Holstein bull Energy P cases of lethal chondrodysplasia were observed. Pedigrees of the cases and the frequency of 3/8 cases among the offspring of Energy P at our teaching and experimental farm Ruthe (LuFG Ruthe) supported the assumption of a germline mutation with a mosaic of normal and defective sperm. RESULTS: All three malformed calves were examined using necropsy, histopathology and computed tomography scanning. The phenotypic appearance of the affected calves was highly similar; they presented with severe disproportionate dwarfism and reduced body weight. The syndrome was characterized by brachygnathia superior, bilateral palatoschisis, shortening and compression of the body due to malformed vertebrae, in their size reduced and malformed ribs and reduced length of the long bones of the limbs. The bones had small irregular diaphyses and enlarged epiphyses. Whole genome sequencing of one bulldog calf, sperm of its sire Energy P and a normal progeny of Energy P identified a deleterious missense mutation (g.32476082G > A, c.2986G > A, ss2019324576) within COL2A1 on bovine chromosome (BTA) 5. Sanger sequencing confirmed the ss2019324576 variant in the affected calves and sperm of Energy P. This mutation is located within the collagen triple helix repeat and causes an exchange of glycine to serine (p.996G > S) in COL2A1. This private single nucleotide variant (SNV) was present as a gonadal mosaic in sperm of the bull. All affected calves were in a heterozygous state whereas normal half siblings and all dams of the progeny from Energy P were missing this SNV. Validation in polled Holstein bulls and normal Holstein calves randomly sampled from several herds and from the LuFG Ruthe confirmed this SNV as private. CONCLUSIONS: The identified spontaneous missense mutation within COL2A1 is most likely the cause of lethal chondrodysplasia in the progeny of Energy P through a dominant negative effect. This example suggests that it would be beneficial to conduct whole genome sequencing of sperm from bulls widely used in artificial insemination in order to detect germline mosaicism. PMID- 29017491 TI - Spatial model for risk prediction and sub-national prioritization to aid poliovirus eradication in Pakistan. AB - BACKGROUND: Pakistan is one of only three countries where poliovirus circulation remains endemic. For the Pakistan Polio Eradication Program, identifying high risk districts is essential to target interventions and allocate limited resources. METHODS: Using a hierarchical Bayesian framework we developed a spatial Poisson hurdle model to jointly model the probability of one or more paralytic polio cases, and the number of cases that would be detected in the event of an outbreak. Rates of underimmunization, routine immunization, and population immunity, as well as seasonality and a history of cases were used to project future risk of cases. RESULTS: The expected number of cases in each district in a 6-month period was predicted using indicators from the previous 6 months and the estimated coefficients from the model. The model achieves an average of 90% predictive accuracy as measured by area under the receiver operating characteristic (ROC) curve, for the past 3 years of cases. CONCLUSIONS: The risk of poliovirus has decreased dramatically in many of the key reservoir areas in Pakistan. The results of this model have been used to prioritize sub national areas in Pakistan to receive additional immunization activities, additional monitoring, or other special interventions. PMID- 29017492 TI - Electroacupuncture ameliorating post-stroke cognitive impairments via inhibition of peri-infarct astroglial and microglial/macrophage P2 purinoceptors-mediated neuroinflammation and hyperplasia. AB - BACKGROUND: During ischemic stroke (IS), adenosine 5'-triphosphate (ATP) is released from damaged nerve cells of the infract core region to the extracellular space, invoking peri-infarct glial cellular P2 purinoceptors singling, and causing pro-inflammatory cytokine secretion, which is likely to initiate or aggravate motor and cognitive impairment. It has been proved that electroacupuncture (EA) is an effective and safe strategy used in anti inflammation. However, EA for the role of purine receptors in the central nervous system has not yet been reported. METHODS: Ischemia-reperfusion injured rat model was induced by middle cerebral artery occlusion and reperfusion (MCAO/R). EA treatment at the DU 20 and DU 24 acupoints treatment were conducted to rats from the 12 h after MCAO/R injury for consecutive 7 days. The neurological outcomes, infarction volumes and the level of astroglial and microglial/macrophage hyperplasia, inflammatory cytokine and P2X7R and P2Y1R expression in the peri infarct hippocampal CA1and sensorimotor cortex were investigated after IS to evaluate the MCAO/R model and therapeutic mechanism of EA treatment. RESULTS: EA effectively reduced the level of pro-inflammatory cytokine interleukin-1beta (IL 1beta) as evidenced by reduction in astroglial and microglial/macrophage hyperplasia and the levels of P2X7R and ED1, P2X7R and GFAP, P2Y1R and ED1, P2Y1R and GFAP co-expression in peri-infarct hippocampal CA1 and sensorimotor cortex compared with that of MCAO/R model and Non-EA treatment, accompanied by the improved neurological deficit and the motor and memory impairment outcomes. Therefore, our data support the hypothesis that EA could exert its anti inflammatory effect via inhibiting the astroglial and microglial/macrophage P2 purinoceptors (P2X7R and P2Y1R)-mediated neuroinflammation after MCAO/R injury. CONCLUSION: Astroglial and microglial/macrophage P2 purinoceptors-mediated neuroinflammation and hyperplasia in peri-infarct hippocampal CA1 and sensorimotor cortex were attenuated by EA treatment after ischemic stroke accompanied by the improved motor and memory behavior performance. PMID- 29017493 TI - Enzalutamide versus abiraterone as a first-line endocrine therapy for castration resistant prostate cancer (ENABLE study for PCa): a study protocol for a multicenter randomized phase III trial. AB - BACKGROUND: Both enzalutamide and abiraterone have demonstrated improved radiographic progression-free and overall survival for castration-resistant prostate cancer (CRPC) compared with placebo controls before docetaxel treatment in phase III studies. These oral agents target androgen and androgen receptor signaling and are thought to be less toxic than chemotherapy. Cross-resistance to these agents was recently reported because of their similar mechanism of action, and it is important to assess which agent is more effective to use initially for CRPC. METHODS/DESIGN: The present study is a phase III, investigator-initiated, multicenter, head-to-head, randomized controlled trial investigating enzalutamide vs. abiraterone as a first-line treatment for CRPC patients. Patients will be randomly assigned to an enzalutamide or an abiraterone treatment group. The primary endpoint is the time to prostate-specific antigen progression. The target sample size is set at 100 patients per group (total, 200 patients). The study duration is 5 years, and the duration for recruitment is 2 years and 6 months. DISCUSSION: Thus far, there have been no prospective head-to-head studies comparing enzalutamide and abiraterone. This ENABLE study will clarify which agent should be prioritized for CRPC patients and enable clinicians to decide the appropriate treatment before chemotherapy. TRIAL REGISTRATION: University hospital Medical Information Network (UMIN) Center identifier UMIN000015529 . Registrated 11/1/2014. PMID- 29017494 TI - The impact of obesity on health-related quality of life in Spain. AB - BACKGROUND: It is well documented that obesity is strongly associated with mortality and morbidity, but less is known about its impact on functional status and health-related quality of life (HRQOL). The purpose of this study was to calculate the impact of the Body Mass Index (BMI) on the HRQOL of the Spanish adult population, with special emphasis on BMI >= 35. METHODS: We used the Spanish National Health Survey (SNHS) 2011-2012 to assess the statistical association between HRQOL, measured through the EuroQol-5D-5L questionnaire, and the BMI. We conducted linear regression analysis for the EuroQol-5D-5L Visual Analogue Scale (VAS) and probit regressions for each of the five dimensions of the EuroQol-5D-5L. RESULTS: Self-perceived problems in the five dimensions of the EuroQol-5D-5L increased along the BMI, especially in the mobility and pain/discomfort dimensions. Having a BMI >= 35 reduced HRQOL even in the absence of chronic diseases. After controlling for comorbidities, severe obesity decreased the VAS score by an average of 1.9 points and increased the probability of reporting any HRQOL problem in mobility (11.8%), self-care (2.2%), usual activities (4.3%) and pain/discomfort (7.4%). No association was found between obesity and mental problems. All the parameters analysed suggest that HRQOL in women and people aged 65 years and over was significantly worse than average. CONCLUSIONS: BMI is an explanatory factor of self-perceived quality of life. Obesity is associated with a worse HRQOL, especially in women and people aged over 64 years. These results may be useful for designing prevention or treatment health policies to target obesity among the Spanish population. PMID- 29017495 TI - Treatment of thoracic or lumbar burst fractures with Balloon Assisted Endplate Reduction using Tricalcium Phosphate cement: histological and radiological evaluation. AB - BACKGROUND: Short-segment pedicle-screw instrumentation is frequently used to stabilize thoracolumbar burst fractures. A recognized disadvantage of this procedure is recurrent kyphosis from intervertebral disc creep into the fractured central endplate. Balloon Assisted Endplate Reduction (BAER) using Tricalcium Phosphate bone cement (TCP) enables elevation of the centrally depressed endplate. Our objective was to evaluate the bone-tissue response to TCP and to analyse whether BAER using TCP can prevent recurrent kyphosis after removal of the instrumentation. METHODS: Fourteen patients with traumatic thoracolumbar burst fractures were operated with BAER using TCP in combination with short segment instrumentation. Nine months after surgery, instrumentation was removed and transpedicular biopsies were taken for histological and histochemical analysis. Roentgenograms pre- and postoperatively and at latest follow-up after removal of the instrumentation were evaluated. RESULTS: Average follow-up was 2.6 years. Analysis of the biopsies showed a variable degree of bone remodelling with incorporation of TCP into newly formed bone matrix. No extensive foreign body reactions, inflammation, granulomatous responses or tissue necrosis were observed. Wedge-angle, kyphosis-angle and both the anterior-posterior and central posterior vertebral body height ratios improved significant postoperatively (p < 0.001). After removal of the instrumentation no significant differences in wedge angle or height ratios were seen (p = 0.12). The kyphosis-angle increased four degrees (p = 0.01). CONCLUSION: TCP showed good histological osseointegration with no adverse events. TCP can therefore be safely used and could be beneficial in treatment of thoracolumbar burst fractures. BAER with TCP in combination with short-segment instrumentation might reduce recurrence of deformity even after removal of the instrumentation in comparison to short-segment instrumentation alone. TRIAL REGISTRATION: This study is registered at the at the Dutch Trial Registry (NTR3498). PMID- 29017496 TI - A novel interaction perturbation analysis reveals a comprehensive regulatory principle underlying various biochemical oscillators. AB - BACKGROUND: Biochemical oscillations play an important role in maintaining physiological and cellular homeostasis in biological systems. The frequency and amplitude of oscillations are regulated to properly adapt to environments by numerous interactions within biomolecular networks. Despite the advances in our understanding of biochemical oscillators, the relationship between the network structure of an oscillator and its regulatory function still remains unclear. To investigate such a relationship in a systematic way, we have developed a novel analysis method called interaction perturbation analysis that enables direct modulation of the strength of every interaction and evaluates its consequence on the regulatory function. We have applied this new method to the analysis of three representative types of oscillators. RESULTS: The results of interaction perturbation analysis showed different regulatory features according to the network structure of the oscillator: (1) both frequency and amplitude were seldom modulated in simple negative feedback oscillators; (2) frequency could be tuned in amplified negative feedback oscillators; (3) amplitude could be modulated in the incoherently amplified negative feedback oscillators. A further analysis of naturally-occurring biochemical oscillator models supported such different regulatory features according to their network structures. CONCLUSIONS: Our results provide a clear evidence that different network structures have different regulatory features in modulating the oscillation frequency and amplitude. Our findings may help to elucidate the fundamental regulatory roles of network structures in biochemical oscillations. PMID- 29017499 TI - Imported malaria in Spain (2009-2016): results from the +REDIVI Collaborative Network. AB - BACKGROUND: Imported malaria is a frequent diagnosis in travellers and migrants. The objective of this study was to describe the epidemiological and clinical characteristics of patients diagnosed with imported malaria within a Spanish collaborative network registering imported diseases (+REDIVI). In addition, the possible association between malaria and type of case, gender, age or area of exposure was explored. METHODS: Cases of imported malaria were identified among all cases registered in the +REDIVI database during the period October 2009 October 2016. Demographic, epidemiological and clinical characteristics were analysed. RESULTS: In total, 11,816 cases of imported infectious diseases were registered in +REDIVI's database between October 2009 and October 2016. Immigrants seen for the first time after migration accounted for 60.2% of cases, 21.0% of patients were travellers, and 18.8% were travellers/immigrants visiting friends and relatives (VFRs). There were 850 cases of malaria (850/11,816, 7.2%). Malaria was significantly more frequent in men than in women (56.8% vs 43.2%) and in VFR-immigrants (52.6%) as compared to travellers (21.3%), immigrants (20.7%) and VFR-travellers (5.4%) (p < 0.001). Although this data was not available for most patients with malaria, only a minority (29/217, 13.4%) mentioned correct anti-malarial prophylaxis. Sub-Saharan Africa was found to be the most common region of acquisition of malaria. Most common reason for consultation after travel was a febrile syndrome although an important proportion of immigrants were asymptomatic and presented only for health screening (27.3%). Around 5% of travellers presented with severe malaria. The most prevalent species of Plasmodium diagnosed was Plasmodium falciparum (81.5%). Malaria due to Plasmodium ovale/Plasmodium vivax was frequent among travellers (17%) and nearly 5% of all malaria cases in immigrants were caused by Plasmodium malariae. CONCLUSIONS: Malaria was among the five most frequent diagnoses registered in +REDIVI's database. Some significant differences were found in the distribution of malaria according to gender, type of case, species. Among all malaria cases, the most frequent diagnosis was P. falciparum infection in VFR-immigrant men. PMID- 29017498 TI - Glycated albumin and its variability as an indicator of cardiovascular autonomic neuropathy development in type 2 diabetic patients. AB - BACKGROUND: We investigated whether glycated albumin (GA) and its variability are associated with cardiovascular autonomic neuropathy (CAN) and further compared their associations with glycated hemoglobin (HbA1c). METHODS: This retrospective longitudinal study included 498 type 2 diabetic patients without CAN. CAN was defined as at least two abnormal results in parasympathetic tests or presence of orthostatic hypotension. The mean, standard deviation (SD), and coefficient of variance (CV) were calculated from consecutively measured GA (median 7 times) and HbA1c levels (median 8 times) over 2 years. Logistic regression analysis was used to compare the associations between CAN and GA- or HbA1c-related parameters. Receiver operating characteristic (ROC) curve analysis was used to compare the predictive power for CAN between GA- and HbA1c-related parameters. RESULTS: A total of 53 subjects (10.6%) developed CAN over 2 years. The mean, SD, and CV of GA or HbA1c were significantly higher in subjects with CAN. Higher mean GA and GA variability were associated with the risk of developing CAN, independent of conventional risk factors and HbA1c. In ROC curve analysis, the SD and CV of GA showed higher predictive value for CAN compared to the SD and CV of HbA1c, whereas the predictive value of mean GA did not differ from that of mean HbA1c. The mean, SD, and CV of GA showed additive predictive power to detect CAN development along with mean HbA1c. CONCLUSIONS: Higher serum GA and its variability are significantly associated with the risk of developing CAN. Serum GA might be a useful indicator for diabetic complications and can enhance HbA1c's modest clinical prediction for CAN. PMID- 29017500 TI - NF-kappaB potentiates tumor growth by suppressing a novel target LPTS. AB - BACKGROUND: Chronic inflammation is causally linked to the carcinogenesis and progression of most solid tumors. LPTS is a well-identified tumor suppressor by inhibiting telomerase activity and cancer cell growth. However, whether and how LPTS is regulated by inflammation signaling is still incompletely elucidated. METHODS: Real-time PCR and western blotting were used to determine the expression of p65 and LPTS. Reporter gene assay, electrophoretic mobility shift assay and chromatin immunoprecipitation were performed to decipher the regulatory mechanism between p65 and LPTS. Cell counting kit-8 assays and xenograt models were used to detect p65-LPTS-regulated cancer cell growth in vitro and in vivo, respectively. RESULTS: Here we for the first time demonstrated that NF-kappaB could inhibit LPTS expression in the mRNA and protein levels in multiple cancer cells (e.g. cervical cancer and colon cancer cells). Mechanistically, NF-kappaB p65 could bind to two consensus response elements locating at -1143/-1136 and -888/-881 in the promoter region of human LPTS gene according to EMSA and ChIP assays. Mutation of those two binding sites rescued p65-suppressed LPTS promoter activity. Functionally, NF-kappaB regulated LPTS-dependent cell growth of cervical and colon cancers in vitro and in xenograft models. In translation studies, we verified that increased p65 expression was associated with decreased LPTS level in multiple solid cancers. CONCLUSIONS: Taken together, we revealed that NF-kappaB p65 potentiated tumor growth via suppressing a novel target LPTS. Modulation of NF-kappaB-LPTS axis represented a potential strategy for treatment of those inflammation-associated malignancies. PMID- 29017501 TI - Psychometric properties of the Children's Response Styles Questionnaire in a Hong Kong Chinese community sample. AB - BACKGROUND: The Children's Response Styles Questionnaire (CRSQ) is a widely adopted inventory that assesses response styles in youths. It is useful in examining how coping styles (particularly rumination) may relate to depressive vulnerability in youths. Despite its utility, little is known about its applicability in non-Western cultures and CRSQ has not been evaluated using current psychometric methods including item response theory (IRT). The present study assessed the properties using IRT methods in a Chinese youth sample. METHODS: Students in Grades 4-6 were recruited from seven public primary schools in Hong Kong, and a total of 581 children (280 boys and 301 girls) between 8 and 14 years of age participated in the study. A Chinese version of CRSQ was administered to them in groups at school after receiving written parental consent as well as students' assent. RESULTS: Confirmatory factor analysis revealed a two factor structure that was comparable to that identified in Western samples, namely, the rumination and distraction/problem-solving subscales. IRT analysis suggested that items varied in levels of item discrimination and item severity, and in precision/usefulness for assessing the underlying latent trait levels. Test information analysis indicated that rumination subscale was more useful than the distraction and problem-solving subscale in assessing the latent trait over a broader range of levels. For gender-based Differential Item Functioning (DIF) analysis, item 1 "When I am sad, I think about how alone I feel" was found to exhibit higher discriminating power for girls than boys. CONCLUSIONS: The study presents the first attempt to examine CRSQ item properties using IRT analysis and supports its validity beyond the Western cultures. The factor structure of CRSQ was found to be comparable to the West in our Chinese sample. Differential Item Functioning (DIF) evaluation suggested all but one item in the rumination subscale of the CRSQ apply equally well to both boys and girls. PMID- 29017497 TI - The effects of vildagliptin compared with metformin on vascular endothelial function and metabolic parameters: a randomized, controlled trial (Sapporo Athero Incretin Study 3). AB - BACKGROUND: Dipeptidyl peptidase-4 (DPP-4) inhibitors may have protective effects in the early stage of atherosclerosis in patients with type 2 diabetes, although similar effects in advanced atherosclerosis were not shown in recent randomized placebo-controlled studies. Therefore, we investigated the efficacy of DPP-4 inhibitor on endothelial function and glycemic metabolism compared with high-dose metformin. METHODS: In this multicenter, open-labeled, prospective, randomized, parallel-group comparison study, patients with type 2 diabetes treated with low dose metformin (500-750 mg/day) were enrolled and randomly assigned to a vildagliptin, a DPP-4 inhibitor, add-on group (Vilda) or a double dose of metformin group (high Met) for 12 weeks. Flow-mediated dilation (FMD) and serum metabolic markers were assessed before and after treatment. In addition, glycemic control and metabolic parameters were also assessed. RESULTS: Ninety-seven subjects (aged 58.7 +/- 11.0 years; body mass index, 25.9 +/- 4.4 kg/m2; HbA1c, 7.3 +/- 0.5%; FMD, 5.8 +/- 2.6%) were enrolled. Eight subjects dropped out by the end of the study. There were no significant differences between the two groups in baseline characteristics. After 12 weeks, HbA1c was significantly improved in the Vilda group compared with the high Met group (- 0.80 +/- 0.38% vs. - 0.40 +/- 0.47%, respectively; p < 0.01). However, there were no significant differences in FMD (- 0.51 [- 1.08-0.06]% vs. - 0.58 [- 1.20-0.04]%). Although the apolipoprotein B/apolipoprotein A1 ratio was significantly reduced in the Vilda group compared with baseline (0.66-0.62; p < 0.01), the change did not differ significantly between the two groups (- 0.04 vs. 0.00; p = 0.27). Adiponectin levels were significantly increased in the Vilda group compared with the high Met group (0.75 MUg/mL vs. 0.01 MUg/mL; p < 0.01). CONCLUSIONS: Regardless of glycemic improvement, combination therapy of vildagliptin and metformin did not affect endothelial function but may exert favorable effects on adipokine levels and lipid profile in patients with type 2 diabetes without advanced atherosclerosis. PMID- 29017502 TI - The presence of residual gold nanoparticles in samples interferes with the RT qPCR assay used for gene expression profiling. AB - BACKGROUND: RT-qPCR is routinely used in expression profiling of toxicity pathway genes. However, genetic and molecular level studies used to determine, understand and clarify potential risks of engineered nanomaterials (ENMs) are still incomplete. Concerns regarding possible interference caused by intracellular ENMs during analyses have been raised. The aim of this study was to verify a qPCR procedure for gene expression assays, which can be used in toxicity and exposure assessments. RESULTS: Amplification of ten reference genes was performed to test the expression stability. A preliminary study was performed on RNA from BEAS-2B cells that had been treated with AuNPs. Also, a reference total RNA standard from ten cell lines was spiked with various amounts of the same AuNP. This treatment mimics exposure assessment studies, where assay-interference may be caused by intracellular residual ENMs still being present in the biological samples (during and after isolation/purification procedures). Both types of RNA samples were reverse transcribed and then amplified by qPCR. The qPCR-related software and statistical programs used included BestKeeper, NormFinder, REST and qBase+. These results proved that using standard qPCR analysis and statistical programs should not be the only procedure applied to verify the assay for gene expression assessment related to ENMs. A comparison of SYBR Green to EVA Green was discussed, in addition to a comparison to the latest reports regarding the influence of ENM thermal conductivity, surface interactions with ENMs, effects of ENM size and charge, as well as, the limit of detection in a qPCR assay. CONCLUSIONS: AuNPs have the potential to interfere with the assay mechanism of RT qPCR, thus, assay verification is required for AuNP-related gene expression studies used to evaluate toxicity. It is recommended to use HSP90 and YWHAZ as reference genes, i.e. these were the most stable in our study, irrespective of the source of the RNA, or, the point at which the AuNPs interacted with the assay. This report describes steps that can be utilised to generate a suitable method for gene expression studies associated with toxicity testing of various ENMs. For example, RNA standards that have been spiked with known amounts of ENMs should be run in conjunction with the unknown samples, in order to verify any RT qPCR assay and determine the degree of error. PMID- 29017503 TI - Effect of bacterial lipase on anaerobic co-digestion of slaughterhouse wastewater and grease in batch condition and continuous fixed-bed reactor. AB - BACKGROUND: This study aimed to investigate the effects of bacterial lipase on biogas production of anaerobic co-digestion of slaughterhouse wastewater (SHWW) and hydrolyzed grease (HG). A neutrophilic Staphylococcus xylosus strain exhibiting lipolytic activity was used to perform microbial hydrolysis pretreatment of poultry slaughterhouse lipid rich waste. RESULTS: Optimum proportion of hydrolyzed grease was evaluated by determining biochemical methane potential. A high biogas production was observed in batch containing a mixture of slaughterhouse composed of 75% SHWW and 25% hydrolyzed grease leading to a biogas yield of 0.6 L/g COD introduced. Fixed bed reactor (FBR) results confirmed that the proportion of 25% of hydrolyzed grease gives the optimum condition for the digester performance. Biogas production was significantly high until an organic loading rate (OLR) of 2 g COD/L. d. CONCLUSION: This study indicates that the use of biological pre-treatment and FBR for the co-digestion of SHWW and hydrolyzed grease is feasible and effective. PMID- 29017504 TI - Positive experiences of a vocational rehabilitation intervention for individuals on long-term sick leave, the Dirigo project: a qualitative study. AB - BACKGROUND: The process of returning to work after long-term sick leave can sometimes be complex. Many factors, (e.g. cooperation between different authorities and the individual as well as individual factors such as health, emotional well-being and self-efficacy) may have an impact on an individual's ability to work. The aim of this study was to investigate clients' experiences with an individually tailored vocational rehabilitation, the Dirigo project, and encounters with professionals working on it. The Dirigo project was based on collaboration between rehabilitation authorities, individually tailored interventions and a motivational interviewing approach. METHODS: A descriptive qualitative design was used with data collected through interviews. Fourteen individuals on long-term sick leave took part in individual semi-structured interviews. The interviews were analysed using content analysis. RESULTS: The analysis showed overall positive experience of methods and encounters with professionals in a vocational rehabilitation project. The positive experiences were based on four key factors: 1. Opportunities for receiving various dimensions of support. 2. Good overall treatment by the professionals. 3. Satisfaction with the working methods of the project, and 4. Opportunities for personal development. CONCLUSIONS: The main result showed that the clients had an overall positive experience of a vocational rehabilitation project and encounters with professionals who used motivational interviewing as a communication method. The overall positive experience indicated that their interactions with the different professionals may have affected their self-efficacy in general and in relation to transition to work. The knowledge is essential for the professionals working in the area of vocational rehabilitation. However, vocational rehabilitation interventions also need a societal approach to be able to offer clients opportunities for job training and real jobs. PMID- 29017505 TI - Study protocol: patient reported outcomes for bladder management strategies in spinal cord injury. AB - BACKGROUND: The majority of spinal cord injury (SCI) patients have urinary issues, such as incontinence, retention, and frequency. These problems place a significant burden on patients' physical health and quality of life (QoL). There are a wide variety of bladder management strategies available to patients with no clear guidelines on appropriate selection. Inappropriate bladder management can cause hospitalizations and serious complications, such as urosepsis and renal failure. Patients believe that both independence and ability to carry out daily activities are just as important as physical health in selecting the right bladder-management strategy but little is known about patient's QoL with different bladder managements. Our study's aim is to assess patient reported QoL measures with various bladder managements after SCI. This manuscript describes the approach, study design and common data elements for our central study. METHODS: This is a multi-institutional prospective cohort study comparing three different bladder-management strategies (clean intermittent catheterization, indwelling catheters, and surgery). Information collected from participants includes demographics, past medical and surgical history, injury characteristics, current and past bladder management, and SCI /bladder-related complications. Patient reported outcomes and QoL questionnaires were administered at enrollment and every 3 months for 1 year. Aims of this study protocol are: (1) to assess baseline QoL differences between the three different bladder-management strategies; (2) determine QoL impact when those using either form of catheter management undergo a surgery over the 1 year of follow-up among patients eligible for surgery; (3) assess the effects of changes in bladder management and complications on QoL over a 1-year longitudinal follow-up. DISCUSSION: By providing information about patient-reported outcomes associated with different bladder management strategies after SCI, and the impact of bladder management changes and complications on QoL, this study will provide essential information for shared decision-making and guide future investigation. TRIAL REGISTRATION: Trial registration number: www.clinicaltrials.gov : Identifier: NCT0261608; U.S. National Library of Medicine, wwwcf.nlm.nih.gov : Identifier: HSRP20153564. PMID- 29017506 TI - Mortality in patients treated with intravitreal bevacizumab for age-related macular degeneration. AB - BACKGROUND: The aim of this study is to analyze mortality in patients treated with bevacizumab for wet AMD. METHODS: We conducted a retrospective case-control study between patients who received intravitreal injections of bevacizumab as the sole treatment for exudative AMD between September 2008 and October 2014 (n = 5385) and age and gender matched controls (n = 10,756). All individuals included in the study were reviewed for sociodemographic data and comorbidities. Survival analysis was performed using adjusted Cox regression, using relevant adjusted variables. RESULTS: During follow-up (maximum: 73 months), 1063 (19.7%) individuals after bevacizumab died compared with 1298 (12.1%) in the control group (P < .001). After adjusted Cox survival regression, mortality differed significantly between the groups, Odds ratio = 1.69, (95% C.I. 1.54-1.84), P < .001. CONCLUSIONS: We found an increased long-term mortality in individuals with wet AMD treated with bevacizumab compared to a same age and gender group without wet AMD. PMID- 29017507 TI - Polyunsaturated fatty acids: any role in rheumatoid arthritis? AB - BACKGROUND: Polyunsaturated fatty acids (PUFAs) are members of the family of fatty acids and are included in the diet. Particularly, western diet is usually low in n-3 PUFAs and high in n-6 PUFAs. PUFAs play a central role in the homeostasis of immune system: n-6 PUFAs have predominantly pro-inflammatory features, while n-3 PUFAs seem to exert anti-inflammatory and pro-resolving properties. Rheumatoid arthritis (RA) is a chronic inflammatory arthritis in which many inflammatory pathways contribute to joint and systemic inflammation, disease activity, and structural damage. Research on PUFAs could represent an important opportunity to better understand the pathogenesis and to improve the management of RA patients. METHODS: We searched PubMed, Embase, EBSCO-Medline, Cochrane Central Register of Controlled Trials (CENTRAL), CNKI and Wanfang to identify primary research reporting the role of n-3 PUFAs in rheumatoid arthritis both in humans and in animal models up to the end of March 2017. RESULTS: Data from animal models allows to hypothesize that n-3 PUFAs supplementation may represent an interesting perspective in future research as much in prevention as in treating RA. In humans, several case-control and prospective cohort studies suggest that a high content of n-3 PUFAs in the diet could have a protective role for incident RA in subjects at risk. Moreover, n-3 PUFAs supplementation has been assessed as a valuable therapeutic option also for patients with RA, particularly in order to improve the pain symptoms, the tender joint count, the duration of morning stiffness and the frequency of NSAIDs assumption. CONCLUSIONS: n-3 PUFAs supplementation could represent a promising therapeutic option to better control many features of RA. The impact of n-3 PUFAs on radiographic progression and synovial histopathology has not been yet evaluated, as well as their role in early arthritis and the combination with biologics. PMID- 29017509 TI - Acceptability of dietary and physical activity lifestyle modification for men following radiotherapy or radical prostatectomy for localised prostate cancer: a qualitative investigation. AB - BACKGROUND: The experience and acceptability of lifestyle interventions for men with localised prostate cancer are not well understood, yet lifestyle interventions are increasingly promoted for cancer survivors. We explored the opinions, experiences and perceived acceptability of taking part in nutritional and physical activity interventions amongst men with prostate cancer and their partners; with the ultimate plan to use such information to inform the development of nutritional and physical activity interventions for men with prostate cancer. METHODS: Semi-structured interviews with 16 men, and seven partners, undergoing curative surgery or radiotherapy for prostate cancer. Interviews explored experiences of lifestyle interventions, acceptable changes participants would make and perceived barriers and facilitators to change. Interviews were thematically analysed using the framework approach. RESULTS: Men were frequently open to lifestyle modification and family support was considered vital to facilitate change. Health beneficial, clinician endorsed, understandable, enjoyable interventions were perceived as attractive. Barriers included 'modern' digital technology, poor weather, competing commitments or physical limitations, most notably incontinence following radical prostatectomy. Men were keen to participate in research, with few negative aspects identified. CONCLUSIONS: Men are willing to change behaviour but this needs to be supported by clinicians and health professionals facilitating lifestyle change. An 'intention-behaviour gap', when an intended behaviour does not materialise, may exist. Digital technology for data collection and lifestyle measurement may not be suitable for all, and post-surgery urinary incontinence is a barrier to physical activity. These novel findings should be incorporated into lifestyle intervention development, and implemented clinically. PMID- 29017508 TI - On neuromechanical approaches for the study of biological and robotic grasp and manipulation. AB - Biological and robotic grasp and manipulation are undeniably similar at the level of mechanical task performance. However, their underlying fundamental biological vs. engineering mechanisms are, by definition, dramatically different and can even be antithetical. Even our approach to each is diametrically opposite: inductive science for the study of biological systems vs. engineering synthesis for the design and construction of robotic systems. The past 20 years have seen several conceptual advances in both fields and the quest to unify them. Chief among them is the reluctant recognition that their underlying fundamental mechanisms may actually share limited common ground, while exhibiting many fundamental differences. This recognition is particularly liberating because it allows us to resolve and move beyond multiple paradoxes and contradictions that arose from the initial reasonable assumption of a large common ground. Here, we begin by introducing the perspective of neuromechanics, which emphasizes that real-world behavior emerges from the intimate interactions among the physical structure of the system, the mechanical requirements of a task, the feasible neural control actions to produce it, and the ability of the neuromuscular system to adapt through interactions with the environment. This allows us to articulate a succinct overview of a few salient conceptual paradoxes and contradictions regarding under-determined vs. over-determined mechanics, under- vs. over actuated control, prescribed vs. emergent function, learning vs. implementation vs. adaptation, prescriptive vs. descriptive synergies, and optimal vs. habitual performance. We conclude by presenting open questions and suggesting directions for future research. We hope this frank and open-minded assessment of the state of-the-art will encourage and guide these communities to continue to interact and make progress in these important areas at the interface of neuromechanics, neuroscience, rehabilitation and robotics. PMID- 29017510 TI - Synthesis of europium-doped VSOP, customized enhancer solution and improved microscopy fluorescence methodology for unambiguous histological detection. AB - BACKGROUND: Intrinsic iron in biological tissues frequently precludes unambiguous the identification of iron oxide nanoparticles when iron-based detection methods are used. Here we report the full methodology for synthesizing very small iron oxide nanoparticles (VSOP) doped with europium (Eu) in their iron oxide core (Eu VSOP) and their unambiguous qualitative and quantitative detection by fluorescence. METHODS AND RESULTS: The resulting Eu-VSOP contained 0.7 to 2.7% Eu relative to iron, which was sufficient for fluorescent detection while not altering other important particle parameters such as size, surface charge, or relaxivity. A customized enhancer solution with high buffer capacity and nearly neutral pH was developed to provide an antenna system that allowed fluorescent detection of Eu-VSOP in cells and histologic tissue slices as well as in solutions even under acidic conditions as frequently obtained from dissolved organic material. This enhancer solution allowed detection of Eu-VSOP using a standard fluorescence spectrophotometer and a fluorescence microscope equipped with a custom filter set with an excitation wavelength (lambdaex) of 338 nm and an emission wavelength (lambdaem) of 616 nm. CONCLUSION: The fluorescent detection of Eu-doped very small iron oxide nanoparticles (Eu-VSOP) provides a straightforward tool to unambiguously characterize VSOP biodistribution and toxicology at tissue, and cellular levels, providing a sensitive analytical tool to detect Eu-doped IONP in dissolved organ tissue and biological fluids with fluorescence instruments. PMID- 29017511 TI - Mechanical wrist traction as a non-invasive treatment for carpal tunnel syndrome: a randomized controlled trial. AB - BACKGROUND: Carpal tunnel syndrome (CTS) is a common, compressive nerve entrapment disorder with symptoms of numbness, paresthesia, and pain. Carpal tunnel release surgery is the only known long-term effective treatment. However, surgery is invasive and up to 30% of patients report recurrence or persistence of symptoms or suffer from post-surgical complications. A promising non-surgical treatment for CTS is mechanical wrist traction. The purpose of this study was to evaluate clinical outcomes following mechanical traction in patients with CTS compared to care as usual. METHODS: Adult patients (N = 181, mean age 58.1 (13.0) years, 67% women) with electrodiagnostically confirmed CTS were recruited from an outpatient neurology clinic in the Netherlands between October 2013 and April 2015. After baseline assessments, patients were randomized to either the intervention group (12 treatments with mechanical traction, twice a week for a period of 6 weeks) or "care as usual". The main clinical outcome measure was surgery during 6 months' follow-up. In addition, symptom severity was measured using the Boston Carpal Tunnel Questionnaire (BCTQ) at baseline, 3, and 6 months' follow-up. Baseline characteristics and severity of CTS symptoms at follow-up were compared between the intervention and care-as-usual groups using a t test and chi 2 tests. Time to event (surgery) between the groups was analyzed using Kaplan-Meier survival analysis and Cox proportional hazards analysis. RESULTS: The intervention group had fewer surgeries (28%) compared to the care-as-usual group (43%) during follow-up (chi21 = 4.40, p = .036). Analyses of the survival curves revealed a statistically significant difference between the groups over time (log-rank test chi 21 = 6.94, p = .008). At 6 months' follow-up, symptom severity and functional status scores had significantly decreased from baseline in both groups (p < .001) and the improvements did not differ between the two groups. CONCLUSIONS: Mechanical traction is associated with fewer surgical interventions compared to care as usual in CTS patients. Reductions in patient reported symptoms at 6 months' follow-up was similar in both groups. The long term effects of mechanical traction require further evaluation. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NL44692.008.13 . Registered on 19 September 2013. PMID- 29017513 TI - Association between TNF, IL1B, IL6, IL10 and IFNG polymorphisms and recurrent miscarriage: a case control study. AB - BACKGROUND: Approximately half of recurrent miscarriages have unexplained etiology. Recent evidences suggest that cytokines are important determinants in pregnancy maintenance and as such, cytokine gene polymorphisms, which can affect cytokine production and/or functionality, could play a role in the disorder. Thus, we aimed to investigate the association of selected cytokine gene polymorphisms with risk of recurrent miscarriage among Chinese. METHODS: TNF 238G > A, TNF -308G > A, IL1B -511 T > C, IL1B 3954C > T, IL6 -174G > C, IL6 634C > G, IL10 -1082A > G and IFNG 874A > T polymorphisms were genotyped on 775 women with idiopathic recurrent miscarriage and 805 healthy parous control women. Logistic regression analysis was performed to determine the odds ratios (ORs) of the association between the polymorphisms and recurrent miscarriage risk. RESULTS: Among the eight polymorphisms studied, only the IL1B -511 T > C and IL6 634C > G polymorphisms showed statistically significant associations with recurrent miscarriage risk. For the former, a significantly increased risk of recurrent miscarriage was observed for the mutant (CC) genotype (OR: 1.377; 95% CI: 1.039-1.824; P = 0.026). However, for the IL6 -634C > G polymorphism, a decreased recurrent miscarriage risk was observed for the heterozygous (CG) genotype (OR: 0.614; 95% CI: 0.493-0.765; P < 0.001) and the mutant (GG) genotype (OR: 0.414; 95% CI: 0.251-0.684; P = 0.001). CONCLUSIONS: The IL1B -511 T > C polymorphism may serve as important risk factor for recurrent miscarriage while the IL6 -634C > G polymorphism may protect against the risk of recurrent miscarriage. PMID- 29017512 TI - Metastatic pathway and the microvascular and physicochemical microenvironments of human melanoma xenografts. AB - BACKGROUND: Malignant melanoma of the skin can metastasize through blood vessels and lymphatics. The primary tumor develops a vascular microenvironment characterized by abnormal blood vessels and lymphatics and a physicochemical microenvironment characterized by low oxygen tension, regions with hypoxic tissue, and high interstitial fluid pressure (IFP). This study aimed at identifying relationships between the metastatic route of melanomas and characteristic features of the microvascular and physicochemical microenvironments of the primary tumor. METHODS: Two patient-derived xenograft (PDX) models (E-13, N-15) and four cell line-derived xenografts (CDX) models (C 10, D-12, R-18, T-22) of human melanoma were included in the study. Tumors were transplanted to an orthotopic site in BALB/c-nu/nu mice, and when the tumors had grown to a volume of 500-600 mm3, the IFP of the primary tumor was measured and the hypoxia marker pimonidazole was administered before the host mouse was euthanized. The primary tumor, lungs, and six pairs of lymph nodes were evaluated by examining hematoxylin/eosin-stained and immunostained histological preparations. The expression of angiogenesis-related genes was assessed by quantitative PCR. RESULTS: C-10, D-12, and E-13 tumors disseminated primarily by the hematogenous route and developed pulmonary metastases. These tumors showed high angiogenic activity and high expression of the F3 gene as well as ANGPT2 and TIE1, genes encoding proteins of the angiopoietin-tie system. N-15, R-18, and T 22 tumors disseminated mainly by the lymphogenous route and developed metastases in draining lymph nodes. These tumors had highly elevated IFP and showed high expression of NRP2, a gene encoding neuropilin-2. CONCLUSION: The primary metastatic route of orthotopic human melanoma xenografts and the development of lung and lymph node metastases are influenced significantly by the microvascular and physicochemical microenvironments of the primary tumor. PMID- 29017515 TI - Low recurrence rate of anchored conjunctival rotation flap technique in pterygium surgery. AB - BACKGROUND: To report the recurrence rate for an anchored conjunctival rotation flap technique in primary pterygium surgery. METHODS: Primary pterygium surgeries performed using anchored conjunctival rotation flap techniques (110 eyes in 110 patients) with a minimum follow-up of 12 months were reviewed. In this technique, a conjunctival flap is rotated to cover the bare sclera and suture-fixated with either 8-0 polyglactin (41 eyes) or 10-0 nylon (69 eyes). The recurrence rate was determined, and the two suture materials utilized were compared. RESULTS: The recurrence rate was 2.71% (3 cases in 110 eyes) when an anchored conjunctival rotation flap technique was used and patients were monitored for 26.40 +/- 17.09 months. Interestingly, the recurrences were only observed in polyglactin-sutured eyes. No recurrence was detected in nylon-sutured eyes. No other complications were observed in either group. CONCLUSIONS: The anchored conjunctival rotation flap technique for pterygium surgery has a relatively low recurrence rate. Nylon suture-fixation of the flap was found to be superior to polyglactin suture fixation in preventing recurrence. PMID- 29017514 TI - Impact of type 2 diabetes mellitus on in-hospital-mortality after major cardiovascular events in Spain (2002-2014). AB - BACKGROUND: Diabetes mellitus has long been associated with cardiovascular events. Nevertheless, the higher burden of traditional cardiovascular risk factors reported in high-income countries is offset by a more widespread use of preventive measures and revascularization or other invasive procedures. The aim of this investigation is to describe trends in number of cases and outcomes, in hospital mortality (IHM) and length of hospital stay (LHS), of hospital admissions for major cardiovascular events between type 2 diabetes (T2DM) and matched non-diabetes patients. METHODS: Retrospective study using National Hospital Discharge Database, analyzed in 4 years 2002, 2006, 2010, 2014, in Spain. We included patients (>= 40 years old) with a primary diagnosis of myocardial infarction, ischemic and hemorrhagic stroke, aortic aneurysm and dissection and acute lower limb ischemia in people with T2DM. Cases were matched with controls (without T2DM) by ICD-9-CM codes, sex, age, province of residence and year. RESULTS: We selected 130,011 matched couples (50,427 with myocardial infarction, 60,236 with stroke, 2599 with aortic aneurysm and dissection and 16,749 with acute lower limb ischemia. Among T2DM patients we found increasing numbers of admissions overtime for stroke (10,794 in 2002 vs 17,559 in 2014), aortic aneurysm and dissection (390 vs 841) and acute lower limb ischemia (3854 vs. 4548). People were progressively older (except for myocardial infarction), had more comorbidities (especially T2DM patients), and were more frequently coded overtime for cardiovascular risk factors (smoking, obesity, hypertension, lipid disorders) and renal diseases. LHS and IHM declined overtime, though IHM only did it significantly in T2DM patients. Multivariable adjustment showed that T2DM patients had a significantly 15% higher mortality rate during admission for myocardial infarction, a 6% higher mortality for stroke, and a 6% higher mortality rate for "all cardiovascular events combined", than non-diabetic matched controls. CONCLUSIONS: The number of hospital admissions for stroke, aortic aneurysm and dissection and acute lower limb ischemia increased overtime, but remained stable for myocardial infarction. T2DM is associated to higher IHM after major cardiovascular events. Further research is needed to help us understand the reasons for an apparently increased mortality in T2DM patients when admitted to hospital for some major cardiovascular events. PMID- 29017517 TI - Traumatic penile amputation: a case report. AB - BACKGROUND: Traumatic amputation of the penis is a rare surgical emergency. Although repair techniques have been well described in literature, failure of replantation and its causes are poorly understood and reported. Herein, we report the case of a 9 year old boy who underwent replantation of his amputated penis with delayed failure of the surgery, along with a discussion of recent advances in the management of this condition. CASE PRESENTATION: A 9-year-old boy was referred to our hospital for traumatic amputation of the penis. Papaverine aided microsurgical replantation of the severed part was performed, but by 48 h, the glans became discoloured and necrosis set in by 4 days. Unfortunately, by day 12 two thirds of the re-implanted penis was lost along with overlying skin. CONCLUSION: Replantation of an amputated penis in a pediatric patient is a daunting task even for experienced surgeons. The vasodilatory effect of papaverine for vascular anastomosis is well described, but the use of a paediatric cannula for identification and instillation of papaverine into penile vasculature, has not been described for the repair of penile amputation. Despite its apparent failure, we believe this technique may be valuable to surgeons who might encounter this rare event in their surgical practice, especially in resource limited settings like ours. PMID- 29017516 TI - Identification of a RAC/AKT-like gene in Leishmania parasites as a putative therapeutic target in leishmaniasis. AB - BACKGROUND: Leishmaniasis is one of the world's most neglected diseases caused by at least 20 different species of the protozoan parasite Leishmania. Although new drugs have become recently available, current therapy for leishmaniasis is still unsatisfactory. A subgroup of serine/threonine protein kinases named as related to A and C protein kinases (RAC), or protein kinase B (PKB)/AKT, has been identified in several organisms including Trypanosoma cruzi parasites. PKB/AKT plays a critical role in mammalian cell signaling promoting cell survival and is a major drug target in cancer therapy. However, the role of protozoan parasitic PKB/AKT remains to be elucidated. RESULTS: We have found that anti-human AKT antibodies recognized a protein of about 57 kDa in Leishmania spp. parasites. Anti-human phospho-AKT(Thr308) antibodies identified a protein in extracts from Leishmania spp. that was upregulated following parasite exposure to stressful conditions, such as nutrient deprivation or heat shock. Incubation of AKT inhibitor X with Leishmania spp. promastigotes under stressful conditions or with Leishmania-infected macrophages led to parasite cell death. We have identified and cloned a novel gene from Leishmania donovani named Ld-RAC/AKT-like gene, encoding a 510-amino acid protein of approximately 57.6 kDa that shows a 26.5% identity with mammalian AKT1. Ld-RAC/AKT-like protein contains major mammalian PKB/AKT hallmarks, including the typical pleckstrin, protein kinase and AGC kinase domains. Unlike mammalian AKT that contains key phosphorylation sites at Thr308 and Ser473 in the activation loop and hydrophobic motif, respectively, Ld RAC/AKT-like protein has a Thr residue in both motifs. By domain sequence comparison, we classified AKT proteins from different origins in four major subcategories that included different parasites. CONCLUSIONS: Our data suggest that Ld-RAC/AKT-like protein represents a Leishmania orthologue of mammalian AKT involved in parasite stress response and survival, and therefore could become a novel therapeutic and druggable target in leishmaniasis therapy. In addition, following comparative sequence analyses, we found the RAC/AKT-like proteins from Leishmania constitute a subgroup by themselves within a general AKT-like protein family. PMID- 29017518 TI - Current practice in methodology and reporting of the sample size calculation in randomised trials of hip and knee osteoarthritis: a protocol for a systematic review. AB - BACKGROUND: A key aspect of the design of randomised controlled trials (RCTs) is determining the sample size. It is important that the trial sample size is appropriately calculated. The required sample size will differ by clinical area, for instance, due to the prevalence of the condition and the choice of primary outcome. Additionally, it will depend upon the choice of target difference assumed in the calculation. Focussing upon the hip and knee osteoarthritis population, this study aims to systematically review how the trial size was determined for trials of osteoarthritis, on what basis, and how well these aspects are reported. METHODS: Several electronic databases (Medline, Cochrane library, CINAHL, EMBASE, PsycINFO, PEDro and AMED) will be searched to identify articles on RCTs of hip and knee osteoarthritis published in 2016. Articles will be screened for eligibility and data extracted independently by two reviewers. Data will be extracted on study characteristics (design, population, intervention and control treatments), primary outcome, chosen sample size and justification, parameters used to calculate the sample size (including treatment effect in control arm, level of variability in primary outcome, loss to follow-up rates). Data will be summarised across the studies using appropriate summary statistics (e.g. n and %, median and interquartile range). The proportion of studies which report each key component of the sample size calculation will be presented. The reproducibility of the sample size calculation will be tested. DISCUSSION: The findings of this systematic review will summarise the current practice for sample size calculation in trials of hip and knee osteoarthritis. It will also provide evidence on the completeness of the reporting of the sample size calculation, reproducibility of the chosen sample size and the basis for the values used in the calculation. TRIAL REGISTRATION: As this review was not eligible to be registered on PROSPERO, the summary information was uploaded to Figshare to make it publicly accessible in order to avoid unnecessary duplication amongst other benefits ( https://doi.org/10.6084/m9.figshare.5009027.v1) ; Registered January 17, 2017. PMID- 29017519 TI - Development of an infant feeding core outcome set for childhood obesity interventions: study protocol. AB - BACKGROUND: Childhood obesity is a significant public health challenge that affects approximately one in five children worldwide. Infant feeding practices are implicated in the aetiology of childhood obesity. Infant feeding interventions for childhood obesity are increasingly popular but outcome reporting is inconsistent across trials. Lack of standardisation limits examination of intervention effects and mechanisms of change. The aim of the current project is to develop a core set of infant feeding outcomes for children <= 1 year old, to be evaluated in childhood obesity intervention trials. METHODS: This project will use similar methodology to previous core outcome development research. An infant feeding core outcome set (COS) will be developed in four stages: (1) a systematic review of the literature, (2) discussion and clarification of outcomes in a meeting involving multiple stakeholder perspectives, (3) prioritisation of outcomes using the Delphi technique with an expert panel of stakeholders, and (4) achieving consensus on the COS using the nominal group technique (NGT) consensus meeting. An online Delphi survey will be conducted following the NGT meeting to prioritise outcomes identified in the systematic review. An NGT meeting will be conducted with groups of health professionals, non-clinician researchers, and parents of infants <= 1 year old, to achieve final consensus on the infant feeding COS. DISCUSSION: This study aims to develop a core outcome set of infant feeding outcomes for randomised infant feeding studies to prevent childhood obesity. This research will improve examination and syntheses of the outcomes of such studies to prevent and reduce childhood obesity. PMID- 29017521 TI - An integrative review of e-learning in the delivery of self-management support training for health professionals. AB - BACKGROUND: E-learning involves delivery of education through Information and Communication Technology (ITC) using a wide variety of instructional designs, including synchronous and asynchronous formats. It can be as effective as face-to face training for many aspects of health professional training. There are, however, particular practices and skills needed in providing patient self management support, such as partnering with patients in goal-setting, which may challenge conventional practice norms. E-learning for the delivery of self management support (SMS) continuing education to existing health professionals is a relatively new and growing area with limited studies identifying features associated with best acquisition of skills in self-management support. METHODS: An integrative literature review examined what is known about e-learning for self management support. This review included both qualitative and quantitative studies that focused on e-learning provided to existing health professionals for their continuing professional development. Papers were limited to those published in English between 2006 and 2016. Content analysis was used to organize and focus and describe the findings. RESULTS: The search returned 1505 articles, with most subsequently excluded based on their title or abstract. Fifty-two full text articles were obtained and checked, with 42 excluded because they did not meet the full criteria. Ten peer-reviewed articles were included in this review. Seven main themes emerged from the content analysis: participants and professions; time; package content; guiding theoretical framework; outcome measures; learning features or formats; and learning barriers. These themes revealed substantial heterogeneity in instructional design and other elements of e-learning applied to SMS, indicating that there is still much to understand about how best to deliver e-learning for SMS skills development. CONCLUSIONS: Few e-learning approaches meet the need for high levels of interactivity, reflection, practice and application to practice for health professionals learning to deliver effective SMS. Findings suggest that the context of SMS for patients with chronic condition matters to how health professional training is delivered, to ensure partnership and person-centred care. Further creative approaches and their rigorous evaluation are needed to deliver completely online learning in this space. Blended learning that combines e-learning and face-to-face methods is suggested to support SMS skills development for health professionals. PMID- 29017522 TI - Analysis of plasma multiplex cytokines and increased level of IL-10 and IL-1Ra cytokines in febrile seizures. AB - BACKGROUND: Febrile seizures are the most common form of childhood seizures. Fever generation involves many cytokines, including both pro- and anti inflammatory cytokines. Some of these cytokines also induce febrile seizures. We compared cytokine production in children with a fever alone (healthy control group) and febrile seizure children group. Also, we evaluated the cytokine level of children with a fever alone and febrile seizure history. METHODS: Fifty febrile seizure patients and 39 normal control patients who visited the emergency department of Konkuk University Hospital from December 2015 to December 2016 were included in this study. Blood was taken from the peripheral vessels of children in all groups within 1 h of the seizure, and serum was obtained immediately. Serum samples from patients with only a fever and a febrile seizure history (N = 13) and afebrile seizure controls (N = 12) were also analyzed. RESULTS: The serum IL-10 and IL-1Ra levels were significantly higher in the febrile seizure patients than in the fever-only control, fever only with a febrile seizure history, and afebrile seizure groups (p < 0.05). The serum IFN-gamma and IL-6 levels were significantly higher in the febrile seizure patients than in the afebrile seizure group (p < 0.05). The serum IL-8 levels were higher in the febrile seizure patients than in the fever only controls (p < 0.05). CONCLUSIONS: The serum levels of the IFN-gamma, IL-6, and IL-8 pro-inflammatory cytokines and the serum levels of the IL-10 and IL-1Ra anti-inflammatory cytokines were significantly higher in the febrile seizure children. Furthermore, the serum level of IL-1Ra was more increased in the febrile seizure group than in the same patients with only a fever. Our data suggest that increased serum IL-10 and IL-1Ra may play potential roles as anti-inflammatory cytokines in a compensation mechanism that shortens the seizure duration or prevents a febrile seizure attack. Therefore, anti-inflammatory cytokines, including IL-10 and IL-1Ra, have potential as therapeutic targets for the prevention of seizures and nervous system development of children. PMID- 29017520 TI - The nuclear receptor ERbeta engages AGO2 in regulation of gene transcription, RNA splicing and RISC loading. AB - BACKGROUND: The RNA-binding protein Argonaute 2 (AGO2) is a key effector of RNA silencing pathways It exerts a pivotal role in microRNA maturation and activity and can modulate chromatin remodeling, transcriptional gene regulation and RNA splicing. Estrogen receptor beta (ERbeta) is endowed with oncosuppressive activities, antagonizing hormone-induced carcinogenesis and inhibiting growth and oncogenic functions in luminal-like breast cancers (BCs), where its expression correlates with a better prognosis of the disease. RESULTS: Applying interaction proteomics coupled to mass spectrometry to characterize nuclear factors cooperating with ERbeta in gene regulation, we identify AGO2 as a novel partner of ERbeta in human BC cells. ERbeta-AGO2 association was confirmed in vitro and in vivo in both the nucleus and cytoplasm and is shown to be RNA-mediated. ChIP Seq demonstrates AGO2 association with a large number of ERbeta binding sites, and total and nascent RNA-Seq in ERbeta + vs ERbeta - cells, and before and after AGO2 knock-down in ERbeta + cells, reveals a widespread involvement of this factor in ERbeta-mediated regulation of gene transcription rate and RNA splicing. Moreover, isolation and sequencing by RIP-Seq of ERbeta-associated long and small RNAs in the cytoplasm suggests involvement of the nuclear receptor in RISC loading, indicating that it may also be able to directly control mRNA translation efficiency and stability. CONCLUSIONS: These results demonstrate that AGO2 can act as a pleiotropic functional partner of ERbeta, indicating that both factors are endowed with multiple roles in the control of key cellular functions. PMID- 29017523 TI - Single tooth torque correction in the lower frontal area by a completely customized lingual appliance. AB - BACKGROUND: Aim of this study was to analyze the efficacy and precision of the completely customized lingual appliance (CCLA) regarding the single tooth torque correction. The study also examined external apical root resorptions as possible side effects of torque correction and the changings of the periodontal situation. METHODS: A case series of three patients were included. The patients showed a single tooth torque problem with a gingival recession and were treated with the CCLA. Plaster casts before and after treatment and plaster casts of the set up were scanned and superimposed. Deviations between the two plaster casts were analyzed at different points of interest. Changes of the gingival recession were compared before and after treatment. Relative root resorptions were measured by the orthopantomograms. Treatment times were assessed by the records of the patients. Results were presented descriptively. RESULTS: The mean change of the most apical part of the root reached by the orthodontic treatment was 1.8 +/- 0.3 mm. The largest deviation between set up and final model was measured on the occlusal surface of the tooth 36 with 0.8 mm. Most measurement points showed a deviation of 0.5 mm or less. The depths of the gingival recession showed a significant reduction of 4.7 mm. The widths of the gingival recession were reduced by 1.1 mm. The average relative root resorption of the corrected teeth was 2.7 +/- 1.5%. The average treatment time was 13.8 +/- 4.5 months. CONCLUSIONS: This is the first study showing that the CCLA with its high precision is very effective in correcting single tooth torque problems. Orthodontic torque correction resulted in a significant reduction of gingival recessions and caused only negligible root resorptions. PMID- 29017524 TI - Chronic obstructive pulmonary disease, bronchial asthma and allergic rhinitis in the adult population within the commonwealth of independent states: rationale and design of the CORE study. AB - BACKGROUND: Main treatable Chronic Respiratory Diseases (CRDs) like Chronic Obstructive Pulmonary Disease (COPD), Bronchial Asthma (BA) and Allergic Rhinitis (AR) are underdiagnosed and undertreated worldwide. CORE study was aimed to assess the point prevalence of COPD, BA and AR in the adult population of major cities of Commonwealth of Independent States (CIS) countries - Azerbaijan, Kazakhstan, and Ukraine based on study questionnaires and/or spirometry, and to document risk factors, characterize the COPD, BA and AR population to provide a clearer "epidemiological data". METHODS: A descriptive, cross-sectional, population-based epidemiological study conducted from 2013 to 2015 with two-stage cluster geographical randomization. Interviewers conducted face-to-face visits at respondent's household after informed consent and eligibility assessment including interviews, anthropometry, spirometry (with bronchodilator test) and completion of disease-specific questionnaires. RESULTS: Two thousand eight hundred forty-two respondents (Ukraine: 964 from Ukraine; 945 from Kazakhstan; 933 Azerbaijan) were enrolled. Mean age was 40-42 years and males were 37%-42% across three countries. In Kazakhstan 62.8% were Asians, but in Ukraine and in Azerbaijan 99.7% and 100.0%, respectively, were Caucasians. Manual labourers constituted 40.5% in Ukraine, 22.8% in Kazakhstan and 22.0% in Azerbaijan, while office workers were 16.1%, 31.6% and 36.8% respectively. 51.3% respondents in Ukraine, 64.9% in Kazakhstan and 69.7% in Azerbaijan were married. CONCLUSION: CORE study collected information that can be supportive for health policy decision makers in allocating healthcare resources in order to improve diagnosis and management of CRDs. The detailed findings will be described in future publications. TRIAL REGISTRATION: Study Protocol Summary is disclosed at GlaxoSmithKline Clinical Study Register on Jun 06, 2013, study ID 116757 . PMID- 29017525 TI - Is vegetarian diet associated with a lower risk of breast cancer in Taiwanese women? AB - BACKGROUND: Studies on the relationship between vegetarian diet and breast cancer in Asian populations are limited. This study aimed to investigate the relationship between vegetarian diet, dietary patterns, and breast cancer in Taiwanese women. METHODS: This case-control study compared the dietary patterns of 233 breast cancer patients and 236 age-matched controls. A questionnaire about vegetarian diets and 28 frequently-consumed food items was administered to these 469 patients in the surgical department of Taipei Tzu Chi Hospital. Serum biochemical status was also examined. RESULTS: There were no significant differences between the two groups for age, education, family history, oral contraceptive usage, or regular exercise. However, the cancer group presented with both a higher body mass index and an older age of primiparity (P < 0.05). Two food items (shellfish and seafood) were highly correlated (correlation coefficient = 0.77), so shellfish was excluded to avoid multicollinearity. A factor analysis of 27 food items produced five dietary patterns: meat, processed meat, fruit/vegetable/soybean, dessert/sugar, and fermented food. Multivariate logistic regression showed that meat/fat and processed meat dietary patterns were associated with breast cancer risk (odds ratio (OR): 2.22, 95% CI 1.67-2.94, P < 0.001; OR: 1.49, 95% CI 1.09-2.04, P = 0.013, respectively). Vegetarian diet, high isoflavone intake, and high albumin levels were inversely associated with breast cancer risk (P < 0.05). Vegetarians had a higher daily soy isoflavone intake than non-vegetarians (25.9 +/- 25.6 mg vs. 18.1 +/- 15.6 mg, P < 0.001). CONCLUSIONS: Vegetarian diets show as protective role against breast cancer risk, while meat and processed meat dietary patterns are associated with a higher breast cancer risk. PMID- 29017526 TI - Tuberculosis knowledge, attitudes and practices of patients at primary health care facilities in a South African metropolitan: research towards improved health education. AB - BACKGROUND: Health education is important to empower patients and encourage their contribution towards tuberculosis (TB) control. In South Africa, health education activities are integrated into services provided at the primary health care (PHC) level. This study was conducted in a high TB burden metropolitan area in South Africa. The objective was to assess TB-related knowledge, attitudes and infection control practices of patients attending PHC facilities. METHODS: In September and October 2015, a cross-sectional survey using fieldworker-administered questionnaires was conducted among patients older than 17 years attending 40 PHC facilities in the Mangaung Metropolitan. Convenience sampling was used to select patients. Participation in the study was voluntary. Descriptive, inferential and multivariate logistic regression analyses were performed. Statistical significance was considered at alpha <0.05 and 95% confidence interval. RESULTS: A total of 507 patients' data were included in the analysis. Most of the patients knew that TB transmission is facilitated by crowded conditions (84.6%) and that pulmonary TB is contagious (73.0%). Surprisingly, the majority of patients also believed that one can get TB from sharing toothbrushes (85.0%) or kissing (65.0%). An overwhelming majority of patients perceived TB to be serious (89.7%), and concurred that taking treatment (97.2%) and opening windows to prevent transmission in PHC facilities (97.0%) are important. Being employed (AOR: 11.5; CI: 4.8-27.6), having received TB infection control information from a PHC facility (AOR: 2.2; CI: 1.5-3.4), and being a TB patient (AOR: 1.6; CI: 1.02 2.46) increased the likelihood of adopting good infection control practices. CONCLUSION: These findings highlight the need for health education efforts to strengthen accurate information dissemination to promote sound TB knowledge and attitudes among patients attending PHC facilities. Health education efforts should also capitalise on the positive finding of this study that information dissemination at PHC facilities increases good infection control practices. PMID- 29017527 TI - Potential return on investment of a family-centered early childhood intervention: a cost-effectiveness analysis. AB - BACKGROUND: ParentCorps is a family-centered enhancement to pre-kindergarten programming in elementary schools and early education centers. When implemented in high-poverty, urban elementary schools serving primarily Black and Latino children, it has been found to yield benefits in childhood across domains of academic achievement, behavior problems, and obesity. However, its long-term cost effectiveness is unknown. METHODS: We determined the cost-effectiveness of ParentCorps in high-poverty, urban schools using a Markov Model projecting the long-term impact of ParentCorps compared to standard pre-kindergarten programming. We measured costs and quality adjusted life years (QALYs) resulting from the development of three disease states (i.e., drug abuse, obesity, and diabetes); from the health sequelae of these disease states; from graduation from high school; from interaction with the judiciary system; and opportunity costs of unemployment with a lifetime time horizon. The model was built, and analyses were performed in 2015-2016. RESULTS: ParentCorps was estimated to save $4387 per individual and increase each individual's quality adjusted life expectancy by 0.27 QALYs. These benefits were primarily due to the impact of ParentCorps on childhood obesity and the subsequent predicted prevention of diabetes, and ParentCorps' impact on childhood behavior problems and the subsequent predicted prevention of interaction with the judiciary system and unemployment. Results were robust on sensitivity analyses, with ParentCorps remaining cost saving and health generating under nearly all assumptions, except when schools had very small pre-kindergarten programs. CONCLUSIONS: Effective family-centered interventions early in life such as ParentCorps that impact academic, behavioral and health outcomes among children attending high-poverty, urban schools have the potential to result in longer-term health benefits and substantial cost savings. PMID- 29017528 TI - First case of Mycobacterium marseillense lymphadenitis in a child. AB - BACKGROUND: Nontuberculous mycobacteria (NTM) are pathogens that commonly affect the paediatric population and its most frequent manifestation is a cervicofacial lymphadenopathy. With the improvement of technologies, new species have been recently identified. CASE PRESENTATION: We report the first case of NMT lymphadenitis in a child caused by Mycobacterium marseillense, a newly described species belonging to Mycobacterium avium complex. CONCLUSIONS: Improving the identification of these newly discovered mycobacteria, further information will be available about their clinical involvement and their best treatment. PMID- 29017529 TI - Short review on human umbilical cord lining epithelial cells and their potential clinical applications. AB - BACKGROUND: The human umbilical cord has been studied extensively in the past two decades. It is free of ethical dilemmas, non-tumorigenic, and less immunogenic and thus provides a significant advantage over other stem cell sources. The cord lining yields both mesenchymal and epithelial stem cells. The mesenchymal cells have been appraised at length by many researchers, which led to the current review focusing on the cord lining epithelial cells (CLECs). These cells have high proliferative capacity and their superior harvest and multiplication, using the revolutionary CellOptimaTM technology, makes them better candidates in comparison to contemporary adult stem cells. Following 30 replication cycles these cells have been observed to retain their stemness, with their phenotype and karyotype intact. However, their remarkable immunosuppressant properties, protecting self as well as co-transplanted allografts from rejection, are what truly define their transplantation potential. They have been successfully applied to many chronic conditions, using animal models, including type 1 diabetes, limbal stem cell deficiency, burn injuries, and wound healing, etc. with encouraging results. CONCLUSIONS: This review first discusses some of the advantages afforded by CLECs over other stem cell lines and then delineates their potential use in various clinical applications. Clinical trials using CLECs are currently underway in the US in collaboration with CellResearch Corp. and their potential positive findings will help garner an FDA approval, likely leading to the eventual commercialization of this promising technology. PMID- 29017530 TI - Customized microscale approach for optimizing two-phase bio-oxidations of alkanes with high reproducibility. AB - BACKGROUND: Numerous challenges remain to achieve industrially competitive space time yields for bio-oxidations. The ability to rapidly screen bioconversion reactions for characterization and optimization is of major importance in bioprocess development and biocatalyst selection; studies at conventional lab scale are time consuming and labor intensive with low experimental throughput. The direct omega-oxyfunctionalization of aliphatic alkanes in a regio- and chemoselective manner is efficiently catalyzed by monooxygenases such as the AlkBGT enzyme complex from Pseudomonas putida under mild conditions. However, the adoption of microscale tools for these highly volatile substrates has been hindered by excessive evaporation and material incompatibility. RESULTS: This study developed and validated a robust high-throughput microwell platform for whole-cell two-liquid phase bio-oxidations of highly volatile n-alkanes. Using microwell plates machined from polytetrafluoroethylene and a sealing clamp, highly reproducible results were achieved with no significant variability such as edge effects determined. A design of experiment approach using a response surface methodology was adopted to systematically characterize the system and identify non-limiting conditions for a whole cell bioconversion of dodecane. Using resting E. coli cells to control cell concentration and reducing the fill volume it is possible to operate in non-limiting conditions with respect to oxygen and glucose whilst achieving relevant total product yields (combining 1-dodecanol, dodecanal and dodecanoic acid) of up to 1.5 mmol g DCW-1 . CONCLUSIONS: Overall, the developed microwell plate greatly improves experimental throughput, accelerating the screening procedures specifically for biocatalytic processes in non conventional media. Its simplicity, robustness and standardization ensure high reliability of results. PMID- 29017531 TI - Can the collection of expired long-lasting insecticidal nets reduce their coverage and use? Sociocultural aspects related to LLIN life cycle management and use in four districts in Madagascar. AB - BACKGROUND: There is growing awareness of the likely impact increased numbers of LLINs will have on the environment, if not disposed of or recycled appropriately. As part of a World Health Organization (WHO) and United Nations Environment Programme (UNEP) pilot study to assess environmentally-sound and cost-effective LLIN recycling strategies, the USAID-Deliver Project collected 22,559 used bed nets in Madagascar. A social science study was conducted to provide data on socio cultural factors related to collection and replacement of LLINs, including impact on primary and other net uses. METHODS: Ethnographic exploratory research was carried out following the pilot USAID-Deliver net collection and recycling campaign in Betioky, Tsihombe, Fenerive Est and Ambanja districts of Madagascar, triangulating participant observation, interviewing and group discussions. Sampling was theoretical and data analysis was a continuous and iterative process concurrent to data collection. Final analysis was conducted using NVivo10. RESULTS: The following themes emerged as contributing to the success of collecting expired LLINs in the community for recycling purposes: (i) net adequacy and preference: characteristic differences between collected and newly distributed nets lead to communities' reticence to relinquish old nets before confirming new nets were appropriate for intended use. Where newly distributed nets failed to meet local requirements, this was expected to increase alternative uses and decrease household turn over. (ii) Net collection strategies: the net collection campaign brought net use out of the private sphere and into the public arena. Net owners reported feeling ashamed when presenting damaged nets in public for collection, leading to reduced net relinquishment. (iii) Net lifecycle: communities perceived nets as being individually owned and economic value was attributed both to good-condition nets for sleeping and to worn nets for alternative/secondary purposes. Collecting nets at the stage of waste rather than at their prescribed end of life was locally acceptable. CONCLUSION: The collection of LLINs for recycling/disposal can lead to lower coverage under certain conditions. Collecting used LLINs may be appropriate under the following conditions: (i) nets are collected at the stage of waste; (ii) new nets are in line with community preferences; and (iii) collection strategies have been agreed upon within the community prior to replacement activities. Any collection/recycling of old LLINs should be based on in-depth understanding of the local context and include participatory processes to prevent reduced coverage. PMID- 29017532 TI - Sequencing of the complete mitochondrial genome of a fish-parasitic flatworm Paratetraonchoides inermis (Platyhelminthes: Monogenea): tRNA gene arrangement reshuffling and implications for phylogeny. AB - BACKGROUND: Paratetraonchoides inermis (Monogenea: Tetraonchoididae) is a flatworm parasitising the gills of uranoscopid fishes. Its morphological characteristics are ambiguous, and molecular data have never been used to study its phylogenetic relationships, which makes its taxonomic classification controversial. Also, several decades of unsuccessful attempts to resolve the relationships within the Monogenea present a strong indication that morphological datasets may not be robust enough to be used to infer evolutionary histories. As the use of molecular data is currently severely limited by their scarcity, we have sequenced and characterized the complete mitochondrial (mt) genome of P. inermis. To investigate its phylogenetic position, we performed phylogenetic analyses using Bayesian inference and maximum likelihood approaches using concatenated amino acid sequences of all 12 protein-coding genes on a dataset containing all available monogenean mt genomes. RESULTS: The circular mt genome of P. inermis (14,654 bp) contains the standard 36 genes: 22 tRNAs, two rRNAs, 12 protein-encoding genes (PCGs; Atp8 is missing) and a major non-coding region (mNCR). All genes are transcribed from the same strand. The A + T content of the whole genome (82.6%), as well as its elements, is the highest reported among the monogeneans thus far. Three tRNA-like cloverleaf structures were found in mNCR. Several results of the phylogenomic analysis are in disagreement with previously proposed relationships: instead of being closely related to the Gyrodactylidea, Tetraonchidea exhibit a phylogenetic affinity with the Dactylogyridea + Capsalidea clade; and the order Capsalidea is neither basal within the subclass Monopisthocotylea, nor groups with the Gyrodactylidea, but instead forms a sister clade with the Dactylogyridea. The mt genome of P. inermis exhibits a unique gene order, with an extensive reorganization of tRNAs. Monogenea exhibit exceptional gene order plasticity within the Neodermata. CONCLUSIONS: This study shows that gene order within monopisthocotylid mt genomes is evolving at uneven rates, which creates misleading evolutionary signals. Furthermore, our results indicate that all previous attempts to resolve the evolutionary history of the Monogenea may have produced at least partially erroneous relationships. This further corroborates the necessity to generate more molecular data for this group of parasitic animals. PMID- 29017535 TI - The LeucoPatch(r) system in the management of hard-to-heal diabetic foot ulcers: study protocol for a randomised controlled trial. AB - BACKGROUND: Diabetic foot ulcers are a common and severe complication of diabetes mellitus. Standard treatment includes debridement, offloading, management of infection and revascularisation where appropriate, although healing times may be long. The LeucoPatch(r) device is used to generate an autologous platelet-rich fibrin and leucocyte wound dressing produced from the patient's own venous blood by centrifugation, but without the addition of any reagents. The final product comprises a thin, circular patch composed predominantly of fibrin together with living platelets and leucocytes. Promising results have been obtained in non controlled studies this system, but this now needs to be tested in a randomised controlled trial (RCT). If confirmed, the LeucoPatch(r) may become an important new tool in the armamentarium in the management of diabetic foot ulcers which are hard-to-heal. METHODS: People with diabetes and hard-to-heal ulcers of the foot will receive either pre-specified good standard care or good standard care supplemented by the application of the LeucoPatch(r) device. The primary outcome will be the percentage of ulcers healed within 20 weeks. Healing will be defined as complete epithelialisation without discharge that is maintained for 4 weeks and is confirmed by an observer blind to randomisation group. DISCUSSION: Ulcers of the foot are a major source of morbidity to patients with diabetes and costs to health care economies. The study population is designed to be as inclusive as possible with the aim of maximising the external validity of any findings. The primary outcome measure is healing within 20 weeks of randomisation and the trial also includes a number of secondary outcome measures. Among these are rate of change in ulcer area as a predictor of the likelihood of eventual healing, minor and major amputation of the target limb, the incidence of infection and quality of life. TRIAL REGISTRATION: International Standard Randomised Controlled Trial, ISRCTN27665670 . Registered on 5 July 2013. PMID- 29017533 TI - Persistent organic pollutants and mortality in the United States, NHANES 1999 2011. AB - BACKGROUND: Persistent organic pollutants (POPs) are environmentally and biologically persistent chemicals that include polybrominated diphenyl ethers (PBDEs), per- and polyfluoroalkyl substances (PFASs), polychlorinated biphenyls (PCBs), and organochlorine (OC) pesticides. Currently, data on the associations between exposure to POPs and the risk of mortality in the U.S. population is limited. Our objective was to determine if higher exposure to POPs is associated with greater risk of all-cause, cancer, heart/cerebrovascular disease, or other cause mortality. METHODS: Analyses included participants aged 60 years and older from the 1999-2006 National Health and Nutrition Examination Surveys (NHANES). We included 483 participants for analyses of PBDEs, 1043 for PFASs, and 461 for PCBs, and 1428 for OC pesticides. Exposures to POPs were estimated using biomarkers measured in serum. Mortality status through December 31, 2011 was obtained from public-use, linked mortality files. We used Cox proportional hazard models to quantify the associations of interest. Where we observed an association, we explored effect modification by sex, body mass index, smoking status, and albuminuria. We also explored the combined effect of PBDEs and OC pesticides in the subsample of participants with measures of both analytes. RESULTS: Serum measurements of PBDEs, PFASs, and PCBs were not clearly associated with increased all-cause or cause-specific mortality in older Americans. Beta hexachlorocyclohexane was associated with an increased risk of all-cause mortality [HR per 1 SD increase =1.18, 95% CI = 1.01, 1.38]. Oxychlordane [HR = 1.15 95% CI 1.06, 1.25], p,p'-DDE [HR = 1.12, 95% CI = 1.02, 1.23], trans nonachlor [HR = 1.11, 95% CI = 1.04, 1.18], and beta-hexachlorocyclohexane [HR = 1.25, 95% CI = 1.03, 1.52] were associated with increased risk of other-cause mortality. Exploratory analyses suggested associations between OC pesticides and other-cause mortality were modified by sex. Exploratory analyses also suggested that the combination of high PBDE and high OC pesticide exposure had a stronger than expected adverse effect on all-cause mortality. CONCLUSION: Higher exposure to beta-hexachlorocyclohexane, an OC pesticide, is associated with increased all cause mortality and higher exposure to four OC pesticides is associated with increased non-cancer, non-heart/cerebrovascular disease mortality in U.S. adults 60 years or older. These associations may be modified by sex or exposure to other POPs. PMID- 29017534 TI - The association between smoking and blood pressure in men: a cross-sectional study. AB - BACKGROUND: Cigarette smoking is a known risk factor for cardiovascular disease (CVD), but the association between smoking and blood pressure is unclear. Thus, the current study examined the association between cigarette smoking and blood pressure in men. METHODS: Systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP) and pulse pressure (PP) were examined using digital blood pressure measuring device, and smoking status was determined with China National Health Survey. RESULTS: The ANCOVA showed that the adjusted DBP and MAP were lower in current smokers versus nonsmokers and the adjusted SBP was lower in current smokers versus former smokers (P < 0.05). Additionally, the adjusted PP tend to be decreased steadily as the pack.years increased in current smokers. In a fully adjusted logistic regression model, former smokers had increased ORs (95% CI) of 1.48 (1.01, 2.18) of hypertension and current smokers had not increased ORs (95% CI) of 0.83 (0.61, 1.12), compared with never smokers. CONCLUSIONS: The findings revealed that the adjusted blood pressure were lower in current smokers versus nonsmokers and former smokers. No significant dose dependent effect of current smoking on blood pressure indices except PP was observed. Smoking cessation was significantly associated with an increased risk of hypertension. However, current smoking was not a risk factor of hypertension. PMID- 29017537 TI - Assessing bed net damage: comparisons of three measurement methods for estimating the size, shape, and distribution of holes on bed nets. AB - BACKGROUND: Measuring the physical condition of long-lasting insecticidal nets (LLINs) under field conditions is of great importance for malaria control programmes to guide decisions on how frequently to replace LLINs. Current guidelines by the World Health Organization Pesticide Evaluation Scheme (WHOPES) propose a proportionate hole index (pHI) for assessing LLIN condition by counting the number of holes the size of a thumb, fist, head, and larger than a head. However, this method does not account for irregular hole shapes or exact hole sizes which could result in inaccurate decisions about when to replace LLINs. METHODS: LLINs were collected during a 2013 health facility-based malaria case control study in Machinga District, Malawi. To evaluate the accuracy of the pHI, the physical condition of 277 LLINs was estimated by the WHOPES method and then compared with two more thorough measurement methods: image analysis of digital photographs of each LLIN side; and for 10 nets, ruler measurements of the length, width, and location of each hole. Total hole counts and areas per net were estimated by each method, and detailed results of hole shapes and composite pictures of hole locations were generated using image analysis. RESULTS: The WHOPES method and image analysis resulted in similar estimates of total hole counts, each with a median of 10 (inter-quartile range (IQR) 4-24 and 4-23, respectively; p = 0.004); however, estimated hole areas were significantly larger using the WHOPES method (median 162 cm2, IQR 28-793) than image analysis (median 13 cm2, IQR 3-101; p < 0.0001). The WHOPES method classified fewer LLINs in 'good condition' compared to image analysis (42% vs 74%). The ruler method detected significantly more holes than image analysis did (p = 0.002) in 10 LLINs; however, total hole area was not significantly different (p = 0.16). Most holes were not circular but roughly 2-5 times longer in one direction. The lower quarter of LLIN sides was found to have the most holes. CONCLUSIONS: The WHOPES method overestimated total hole area, likely because holes are elongated rather than circular, suggesting further adjustments to the pHI formula may be warranted when considering LLIN replacement strategies. PMID- 29017536 TI - A strongly selected mutation in the HIV-1 genome is independent of T cell responses and neutralizing antibodies. AB - BACKGROUND: Mutations rapidly accumulate in the HIV-1 genome after infection. Some of those mutations are selected by host immune responses and often cause viral fitness losses. This study is to investigate whether strongly selected mutations that are not associated with immune responses result in fitness losses. RESULTS: Strongly selected mutations were identified by analyzing 5'-half HIV-1 genome (gag/pol) sequences from longitudinal samples of subject CH0131. The K43R mutation in the gag gene was first detected at day 91 post screening and was fixed in the viral population at day 273 while the synonymous N323tc mutation was first detected at day 177 and fixed at day 670. No conventional or cryptic T cell responses were detected against either mutation sites by ELISpot analysis. However, when fitness costs of both mutations were measured by introducing each mutation into their cognate transmitted/founder (T/F) viral genome, the K43R mutation caused a significant fitness loss while the N323tc mutation had little impact on viral fitness. CONCLUSIONS: The rapid fixation, the lack of detectable immune responses and the significant fitness cost of the K43R mutation suggests that it was strongly selected by host factors other than T cell responses and neutralizing antibodies. PMID- 29017538 TI - HGF potentiates extracellular matrix-driven migration of human myoblasts: involvement of matrix metalloproteinases and MAPK/ERK pathway. AB - BACKGROUND: The hepatocyte growth factor (HGF) is required for the activation of muscle progenitor cells called satellite cells (SC), plays a role in the migration of proliferating SC (myoblasts), and is present as a soluble factor during muscle regeneration, along with extracellular matrix (ECM) molecules. In this study, we aimed at determining whether HGF is able to interact with ECM proteins, particularly laminin 111 and fibronectin, and to modulate human myoblast migration. METHODS: We evaluated the expression of the HGF-receptor c Met, laminin, and fibronectin receptors by immunoblotting, flow cytometry, or immunofluorescence and used Transwell assays to analyze myoblast migration on laminin 111 and fibronectin in the absence or presence of HGF. Zymography was used to check whether HGF could modulate the production of matrix metalloproteinases by human myoblasts, and the activation of MAPK/ERK pathways was evaluated by immunoblotting. RESULTS: We demonstrated that human myoblasts express c-Met, together with laminin and fibronectin receptors. We observed that human laminin 111 and fibronectin have a chemotactic effect on myoblast migration, and this was synergistically increased when low doses of HGF were added. We detected an increase in MMP-2 activity in myoblasts treated with HGF. Conversely, MMP-2 inhibition decreased the HGF-associated stimulation of cell migration triggered by laminin or fibronectin. HGF treatment also induced in human myoblasts activation of MAPK/ERK pathways, whose specific inhibition decreased the HGF-associated stimulus of cell migration triggered by laminin 111 or fibronectin. CONCLUSIONS: We demonstrate that HGF induces ERK phosphorylation and MMP production, thus stimulating human myoblast migration on ECM molecules. Conceptually, these data state that the mechanisms involved in the migration of human myoblasts comprise both soluble and insoluble moieties. This should be taken into account to optimize the design of therapeutic cell transplantation strategies by improving the migration of donor cells within the host tissue, a main issue regarding this approach. PMID- 29017539 TI - Contraceptive knowledge, perceptions, and concerns among men in Uganda. AB - BACKGROUND: Low contraceptive uptake and high unmet need for contraception remain significant issues in Uganda compared to neighboring countries such as Kenya, Ethiopia, and Rwanda. Although prior research on contraceptive uptake has indicated that male partners strongly influence women's decisions around contraceptive use, there is limited in-depth qualitative research on knowledge and concerns regarding modern contraceptive methods among Ugandan men. METHODS: Using in-depth interviews (N = 41), this qualitative study investigated major sources of knowledge about contraception and perceptions of contraceptive side effects among married Ugandan men. RESULTS: Men primarily reported knowledge of contraceptives based on partner's experience of side effects, partner's knowledge from health providers and mass media campaigns, and partner's knowledge from her peers. Men were less likely to report contraceptive knowledge from health care providers, mass media campaigns, or peers. Men's concerns about various contraceptive methods were broadly associated with failure of the method to work properly, adverse health effects on women, and severe adverse health effects on children. Own or partner's human immunodeficiency virus (HIV) status did not impact on contraceptive knowledge. CONCLUSIONS: Overall, we found limited accurate knowledge about contraceptive methods among men in Uganda. Moreover, fears about the side effects of modern contraceptive methods appeared to be common among men. Family planning services in Uganda could be significantly strengthened by renewed efforts to focus on men's knowledge, fears, and misconceptions. PMID- 29017540 TI - Only half of the mothers practiced early initiation of breastfeeding in Northwest Ethiopia, 2015. AB - BACKGROUND: Early initiation of breastfeeding has been well-recognized in reducing neonatal mortality; however, it remains sub-optimal in Ethiopia. This study therefore assessed the prevalence of early initiation of breastfeeding and associated factors among mothers with children aged 6-24 months in Dabat Health and Demographic Surveillance System (HDSS) site, northwest Ethiopia, where literature on the issue is markedly scarce. METHODS: This community-based cross sectional survey was carried out from May to June, 2015, at Dabat HDSS site, Dabat District. Eight hundred twenty-two mother-child pairs were included in the study. A multivariable logistic regression model was employed to identify factors associated with early initiation of breastfeeding. RESULTS: This study demonstrated that the prevalence of early initiation of breastfeeding was 53.3%. Institutional delivery (AOR = 4.9; 95% CI 3.2, 7.4), higher Infant and Young Child Feeding (IYCF) knowledge (AOR = 2.3; 95% CI 1.6, 3.3), higher wealth status (AOR = 4.1, 95% CI 2.8, 6.0) and low fathers' education (AOR = 0.3, 95% CI 0.2, 0.6) were significantly associated with early initiation of breastfeeding in the multivariate analysis. CONCLUSION: In summary, the coverage of early initiation of breastfeeding in Dabat HDSS site was low, considerably below the national target. Therefore, efforts should be intensified to step-up early initiation of breastfeeding by focusing on the identified determinants. PMID- 29017541 TI - Cardiovascular flukes (Trematoda: Spirorchiidae) in Caretta caretta Linnaeus, 1758 from the Mediterranean Sea. AB - BACKGROUND: The northern Adriatic Sea represents one of the most important neritic foraging grounds for the loggerhead sea turtle Caretta caretta L. in the Mediterranean Sea. Four genera of blood flukes with variable prevalence and pathogenic impact have been reported worldwide in this species. Hapalotrema Looss, 1899 and Amphiorchis Price, 1934 are the only two genera reported in Mediterranean waters; however, updated data describing spirorchiidiasis in the central and eastern Mediterranean and infection prevalence are still lacking. This work aimed to investigate the presence and pathology of spirorchiidiasis in C. caretta in the Mediterranean Sea. METHODS: One hundred sixty-eight animals stranded along the northwestern Adriatic coast between 2009 and 2015 were submitted to necropsy and subsequent analyses for the detection of adult flukes, detection of eggs in the faeces and spleen and histopathology. Molecular analyses were carried out on hosts (mitochondrial D-loop) and parasites (28S gene and ITS2 spacer) to trace the turtle origins and identify the fluke phylogenetic relationships. RESULTS: Spirorchiidiasis was detected in 16.7% of the animals. Hapalotrema mistroides (Monticelli, 1899) and Neospirorchis sp. were found in twenty-six and ten cases, respectively. Adult flukes were found in six cases, while eggs were detectable through copromicroscopic examination for all infected turtles, and the results for the detection of eggs in the spleen agreed with the copromicroscopic analysis. Only mild lesions were observed. Eggs of types 1 and 3 were grossly visible in the gastrointestinal mucosa, vasculitis was rarely observed in the heart and great vessels, and multifocal granulomas were widespread in the tissues. Molecular identification unambiguously assigned the spirorchiid samples to H. mistroides and Neospirorchis sp. Genetic characterization of loggerhead mtDNA pointed to a Mediterranean origin of the turtle hosts. CONCLUSION: This survey provides new data on the spread of spirorchiidiasis in the Mediterranean loggerhead sea turtle population and reports for the first time the presence of Neospirorchis spp. in this basin. The infections did not have a causal effect on the death nor a strong impact on the general health status of the animals. PMID- 29017542 TI - Financial burden of healthcare for cancer patients with social medical insurance: a multi-centered study in urban China. AB - BACKGROUND: Cancer accounts for one-fifth of the total deaths in China and brings heavy financial burden to patients and their families. Chinese government has made strong commitment to develop three types of social medical insurance since 1997 and recently, more attempts were invested to provide better financial protection. To analyze health services utilization and financial burden of insured cancer patients, and identify the gaps of financial protection provided by insurance in urban China. METHODS: A random sampling, from Urban Employee's Basic Medical Insurance claim database, was performed in 4 cities in 2008 to obtain insurance claim records of cancer patients. Services utilization, medical expenses and out-of-pocket (OOP) payment were the metrics collected from the insurance claim database, and household non-subsistence expenditure were estimated from Health Statistics. Catastrophic health expenditure was defined as household's total out-of-pocket payments exceed 40% of non-subsistence expenditure. Stratified analysis by age groups was performed on service use, expenditure and OOP payment. RESULTS: Data on 2091 insured cancer patients were collected. Reimbursement rates were over 80% for Shanghai and Beijing while Fuzhou and Chongqing only covered 60%-70% of total medical expenditure. Shanghai had the highest reimbursement rate (88.2%), high total expenditure ($1228) but lowest OOP payment ($170) among the four cities. Chongqing and Fuzhou's insured cancer patients exclusively preferred tertiary hospitals for outpatient services. Fuzhou led the annual total medical expense ($9963), followed by Chongqing, Beijing and Shanghai. The average OOP as proportion of household's capacity to pay was 87.3% (Chongqing), 66.0% (Fuzhou), 33.7% (Beijing) and 19.6% (Shanghai). Elderly insured cancer patients utilized fewer outpatient services, had lower number of inpatient admissions but longer length of stay, and higher total expenditure. CONCLUSIONS: Social economic development was not necessarily associated with total medical expense but determined the level of financial protection. The economic burden of insured cancer patients was reduced by insurance but it is still necessary to provide further financial protections and improve affordability of healthcare for cancer patients in China. PMID- 29017544 TI - Sero-prevalence and intrinsic factors associated with Brucella infection in food animals slaughtered at abattoirs in Abuja, Nigeria. AB - BACKGROUND: Brucellosis, a neglected tropical food-borne zoonotic disease, has a negative impact on both animal and human health as well as tremendous socio economic impact in developing countries where rural income relies largely on livestock breeding and dairy products. It is endemic in the animal population in Nigeria and is a recognized occupational hazard. This work was done to establish the sero-prevalence and predisposing factors of food animals in Abuja, Nigeria to Brucella infection. RESULTS: Of 376 cattle, 203 sheep and 260 goats screened, 21 (5.6%); 19 (9.4%); 51 (19.6%) were positive, respectively for brucellosis with Rose Bengal Plate Test, and 2 (0.5%); 4 (2.0%); 10 (3.8%), respectively with c ELISA. The likelihood of acquiring Brucella infection was higher among the Red Sokoto breed of goats compared to other breeds of goats (p = 0.05). CONCLUSION: This study showed that the prevalence of Brucella infection was low in food animals slaughtered at abattoirs in Abuja. However, of all animals screened, seropositivity to Brucella infection was highest in goats with Red Sokoto breed of goats more likely to acquire the disease when compared to other breeds. PMID- 29017543 TI - Plasmodium falciparum uses vitamin E to avoid oxidative stress. AB - BACKGROUND: Plasmodium falciparum is sensitive to oxidative stress in vitro and in vivo, and many drugs such as artemisinin, chloroquine and cercosporin interfere in the parasite's redox system. To minimize the damage caused by reactive radicals, antioxidant enzymes and their substrates found in parasites and in erythrocytes must be functionally active. It was shown that P. falciparum synthesizes vitamin E and that usnic acid acts as an inhibitor of its biosynthesis. Vitamin E is a potent antioxidant that protects polyunsaturated fatty acids from lipid peroxidation, and this activity can be measured by detecting its oxidized product and by evaluating reactive oxygen species (ROS) levels. RESULTS: Here, we demonstrated that ROS levels increased in P. falciparum when vitamin E biosynthesis was inhibited by usnic acid treatment and decreased to basal levels if exogenous vitamin E was added. Furthermore, we used metabolic labelling to demonstrate that vitamin E biosynthesized by the parasite acts as an antioxidant since we could detect its radiolabeled oxidized product. The treatment with chloroquine or cercosporin of the parasites increased the ratio between alpha-tocopherolquinone and alpha-tocopherol. CONCLUSIONS: Our findings demonstrate that vitamin E produced endogenously by P. falciparum is active as an antioxidant, probably protecting the parasite from the radicals generated by drugs. PMID- 29017545 TI - Little pigeons can carry great messages: potential distribution and ecology of Uranotaenia (Pseudoficalbia) unguiculata Edwards, 1913 (Diptera: Culicidae), a lesser-known mosquito species from the Western Palaearctic. AB - BACKGROUND: Uranotaenia unguiculata is a Palaearctic mosquito species with poorly known distribution and ecology. This study is aimed at filling the gap in our understanding of the species potential distribution and its environmental requirements through a species distribution modelling (SDM) exercise. Furthermore, aspects of the mosquito ecology that may be relevant to the epidemiology of certain zoonotic vector-borne diseases in Europe are discussed. RESULTS: A maximum entropy (Maxent) modelling approach has been applied to predict the potential distribution of Ur. unguiculata in the Western Palaearctic. Along with the high accuracy and predictive power, the model reflects well the known species distribution and predicts as highly suitable some areas where the occurrence of the species is hitherto unknown. CONCLUSIONS: To our knowledge, the potential distribution of a mosquito species from the genus Uranotaenia is modelled for the first time. Provided that Ur. unguiculata is a widely distributed species, and some pathogens of zoonotic concern have been detected in this mosquito on several occasions, the question regarding its host associations and possible epidemiological role warrants further investigation. PMID- 29017547 TI - Reconstructing cancer drug response networks using multitask learning. AB - BACKGROUND: Translating in vitro results to clinical tests is a major challenge in systems biology. Here we present a new Multi-Task learning framework which integrates thousands of cell line expression experiments to reconstruct drug specific response networks in cancer. RESULTS: The reconstructed networks correctly identify several shared key proteins and pathways while simultaneously highlighting many cell type specific proteins. We used top proteins from each drug network to predict survival for patients prescribed the drug. CONCLUSIONS: Predictions based on proteins from the in-vitro derived networks significantly outperformed predictions based on known cancer genes indicating that Multi-Task learning can indeed identify accurate drug response networks. PMID- 29017548 TI - Mycobacterium tuberculosis infection in cattle from the Eastern Cape Province of South Africa. AB - BACKGROUND: Mycobacterium tuberculosis is the main causative agent of tuberculosis (TB) in human and Mycobacterium bovis commonly causes tuberculosis in animals. Transmission of tuberculosis caused by both pathogens can occur from human to animals and vice versa. RESULTS: In the current study, M. tuberculosis, as confirmed by polymerase chain reaction (PCR) using primers targeting 3 regions of difference (RD4, RD9 and RD12) on the genomes, was isolated from cattle originating from two epidemiologically unrelated farms in the Eastern Cape (E.C) Province of South Africa. Although the isolates were genotyped with variable number of tandem repeat (VNTR) typing, no detailed epidemiological investigation was carried out on the respective farms to unequivocally confirm or link humans as sources of TB transmission to cattle, a move that would have embraced the 'One Health' concept. In addition, strain comparison with human M. tuberculosis in the database from the E.C Province and other provinces in the country did not reveal any match. CONCLUSIONS: This is the first report of cases of M. tuberculosis infection in cattle in South Africa. The VNTR profiles of the M. tuberculosis strains identified in the current study will form the basis for creating M. tuberculosis VNTR database for animals including cattle for future epidemiological studies. Our findings however, call for urgent reinforcement of collaborative efforts between the veterinary and the public health services of the country. PMID- 29017549 TI - Enhanced hospital-based learning at a medical school through application of management principles - a case study. AB - BACKGROUND: A hospital with all its brimming activity constitutes a unique learning environment for medical students. However, to organise high-quality education within this context is a task of great complexity. This paper describes a teaching hospital case, where management principles were applied to enhance the learning quality of medical education. METHODS: Traditional attempts from the faculty had been unsuccessful in improving learning among medical students at a teaching hospital. We therefore applied management principles to be able to improve the learning quality. An evaluation was performed from the perspectives of management (course directors/ heads of health care departments), medical students, and physician supervisors. Presages were defined, including educational resources and management; processes were adjusted, including learning activities and staff schedules; and products were assessed. RESULTS: Charting and benchmarking the use of local educational resources identified unused funding. Structured recurrent collaboration within resource utilization was established between course directors and heads of all concerned health care departments. By formulating a joint agreement, the identified assets were used to reorganise the course, to create constructive alignment, and to increase assigned supervisor time. This resulted in a sustainable improvement of learning quality and culture. CONCLUSION: By using management principles in combination with a scholarship of teaching and learning, it was possible to locate and redistribute educational resources in an effective way. This improved student learning and the learning culture of the health care departments. We propose that such an initiative could also be transferable to other contexts. Faculty leaders facing similar problems should consider the advantages of a structured collaboration with health care department heads. PMID- 29017550 TI - Improving family planning services delivery and uptake: experiences from the "Reversing the Stall in Fertility Decline in Western Kenya Project". AB - OBJECTIVE: In this paper, we reflect on our experiences of implementing a multipronged intervention to improve sexual and reproductive health outcomes. The project used family planning as its entry point and was implemented in two high fertility counties-Busia and Siaya in Kenya. The intervention, implemented by a seven-member consortium, involved: family planning services delivery; regular training of service providers to deliver high quality services; monitoring and evaluation; strengthening of commodity chain delivery and forecasting; school based and out-of-school based sexuality education; and advocacy and stakeholder engagements at the community, county and national levels. RESULTS: Over a 5-year period, the project contributed to raising demand for family planning considerably, evidenced in fertility decline. It also improved the capacity of family planning services providers, increased commitment and awareness of county government and other community stakeholders on the importance of investments in family planning. Our collaborations with organisations interested in sexual and reproductive health issues substantially enhanced the consortium's ability to increase demand for, and supply of family planning commodities. These collaborations are proving useful in the continuity and sustainability of project achievements. PMID- 29017551 TI - Comparative efficacy of the LeucofeligenTM FeLV/RCP and PurevaxTM RCP FeLV vaccines against infection with circulating feline Calicivirus. AB - BACKGROUND: Feline calicivirus (FCV) is a common virus, found worldwide, mainly responsible for chronic ulceroproliferative faucitis and periodontitis. This virus has a high mutation rate, leading to the presence of numerous FCV strains in the field. The objectives of this study was to evaluate and compare the efficacy of two vaccines (LeucofeligenTM FeLV/RCP and PurevaxTM RCP FeLV), which differ by their nature (live vs. inactivated) and the vaccinal strains, against circulating FCV strains. Thirty 9-week-old specific pathogen free (SPF) kittens were thus randomised into 3 groups and were either not vaccinated (control) or vaccinated (2 injections, 3 weeks apart) with one of the vaccines. Four weeks after the second injection of primary vaccination, the cats were inoculated with a pathogenic strain representative of the ones circulating in Europe (FCV-FR4_01) and followed for 2 weeks. RESULTS: After challenge, significant differences (p < 0.05) between control cats and cats vaccinated with LeucofeligenTM FeLV/RCP or PurevaxTM RCP FeLV were observed for body weight variation, rectal temperature rise and maximum clinical scores, reflecting the intensity of the signs (83% and 67% lower in the respective vaccinated groups than in the control group). Significant differences were observed between the vaccinated groups, as cats vaccinated with LeucofeligenTM FeLV/RCP had a lower temperature rise (p < 0.05 at days post-challenge 3 to 5) and lower virus shedding titres (p < 0.05 at days post-challenge 8, 9 and 11) than cats vaccinated with PurevaxTM RCP FeLV. Finally, only cats vaccinated with LeucofeligenTM FeLV/RCP had a significantly lower cumulative score, reflecting the intensity and duration of calicivirosis clinical signs, than the control cats (77% lower vs. 62% lower for cats vaccinated with PurevaxTM RCP FeLV). CONCLUSIONS: Both vaccines, LeucofeligenTM FeLV/RCP and PurevaxTM RCP FeLV, were found to be efficacious in reducing clinical signs induced by FCV-FR4_01, a FCV strain representative of the circulating ones. However, cats vaccinated with LeucofeligenTM FeLV/RCP were able to control the infection more efficiently than those vaccinated with PurevaxTM RCP FeLV, as evidenced by the shorter duration of clinical signs and lower viral titre in excretions. PMID- 29017552 TI - Syphilis in the Americas: a protocol for a systematic review of syphilis prevalence and incidence in four high-risk groups, 1980-2016. AB - BACKGROUND: Syphilis infection has recently resurfaced as a significant public health problem. Although there has been a tremendous amount of research on the epidemiology of syphilis, there has been limited work done to synthesize the extensive body of research and systematically estimate patterns of disease within high-risk groups in the Americas. The purpose of this systematic review and meta analysis is to (1) summarize recent patterns of syphilis infection in North and South America among four high-risk groups (MSM, transgender women, sex workers, and incarcerated individuals) from 1980 to 2016, (2) identify and differentiate regional geographic epidemiologic characteristics, and (3) compare the epidemics of the economically developed countries of North America from the developing countries and public health systems of Latin America and the Caribbean. METHODS/DESIGN: Primary studies reporting syphilis prevalence and/or incidence in at least one of the four high-risk groups will be identified from Medline/PubMed, Embase, Lilacs, SciELO, The Cochrane Library, Web of Science, Scopus, ProQuest, CINAHL, Clase, and Periodica, as well as "gray" literature sources (conference abstracts, country reports, etc.). Studies published from 1980 through 2016 will be included. Data will be extracted from studies meeting inclusion and exclusion criteria and a random effects meta-analysis of prevalence and incidence estimates will be conducted. Heterogeneity, risk of bias, and publication bias will be assessed. Pooled prevalence and incidence estimates will be calculated for comparisons based on geographic region, risk factors, and time period. DISCUSSION: Our systematic review and meta-analysis aims to contribute to an improved understanding of global epidemiologic patterns of syphilis infection in most-at-risk populations. Through systematic classification of the existing literature, and comparison of disease patterns across regional, temporal and socio-behavioral differences, we hope to improve public health surveillance and improve efforts to control the spread of disease across the Americas. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42016047306. PMID- 29017553 TI - Which phenotypic traits of resistance should be improved in cattle to control paratuberculosis dynamics in a dairy herd: a modelling approach. AB - Paratuberculosis is a worldwide disease causing production losses in dairy cattle herds. Variability of cattle response to exposure to Mycobacterium avium subsp. paratuberculosis (Map) has been highlighted. Such individual variability could influence Map spread at larger scale. Cattle resistance to paratuberculosis has been shown to be heritable, suggesting genetic selection could enhance disease control. Our objective was to identify which phenotypic traits characterising the individual course of infection influence Map spread in a dairy cattle herd. We used a stochastic mechanistic model. Resistance consisted in the ability to prevent infection and the ability to cope with infection. We assessed the effect of varying (alone and combined) fourteen phenotypic traits characterising the infection course. We calculated four model outputs 25 years after Map introduction in a naive herd: cumulative incidence, infection persistence, and prevalence of infected and affected animals. A cluster analysis identified influential phenotypes of cattle resistance. An ANOVA quantified the contribution of traits to model output variance. Four phenotypic traits strongly influenced Map spread: the decay in susceptibility with age (the most effective), the quantity of Map shed in faeces by high shedders, the incubation period duration, and the required infectious dose. Interactions contributed up to 12% of output variance, highlighting the expected added-value of improving several traits simultaneously. Combinations of the four most influential traits decreased incidence to less than one newly infected animal per year in most scenarios. Future genetic selection should aim at improving simultaneously the most influential traits to reduce Map spread in cattle populations. PMID- 29017555 TI - Hospital-visiting pregnant women signal an increased spread of hepatitis C infection in Khyber Pakhtunkhwa region of Pakistan. AB - BACKGROUND: Seroprevalence of hepatitis C in Khyber Pakhtunkhwa province of Pakistan was determined by screening blood samples of expectant mothers seeking antenatal care in gynecological units of district hospitals. The rationale behind this cohort study was that the availability of free-of-cost antenatal care in district hospitals brings expectant mothers from a broader geographical range in each district and thus provides a large sample-size of healthy pregnant women of known medical history for Hepatitis C Virus (HCV) surveillance. The study was carried out along a south west to north east transact of five districts, Kohat Peshawar-Nowshera-Charsadda-Mardan, with the central district Peshawar and outer districts Kohat and Mardan bordering northern mountainous ranges of the Khyber Pakhtunkhwa province. This distribution of districts along the transact allowed the study to gauge the impact of proximity to remote highland communities on the HCV burden of visiting pregnant women tested for HCV infection. METHODS: The cohort study randomly selected 150 pregnant women visiting each hospital for serological screening for Anti-HCV carried out by ELISA assay. The feasibility of ICT and RT-PCR assays for HCV prevalence was also examined in the present study. RESULTS: With a total of 750 blood specimen screened, the results of ELISA tests revealed a staggering 5.9% frequency of Anti-HCV in the five districts with the frequency of ELISA positive cases ranging from 3.3% in Nowshera, 4.7% in Charsadda, 6.0% in Peshawar, 6.7% in Kohat, and 8.7% in Mardan. The relatively higher frequencies of Anti-HCV cases among hospital visiting pregnant women in Peshawar, Kohat and Mardan were consistent with the proximity of these hospitals to the highland communities in the bordering mountain ranges. Compared to 44 Anti HCV positive serologic specimens detected by ELISA, only 26 and 10 blood specimens were tested positive by ICT and PCR methods, respectively. Our study validates ELISA as a reliable diagnostic technique for both acute and chronic HCV infection. CONCLUSION: The HCV infection rate of 5.9% in Khyber Pakhtunkhwa province clearly exceeds the HCV prevalence rates reported for other regions in Pakistan, making this province a hotspot of HCV infection in the country. PMID- 29017554 TI - In vivo anti-malarial activity and toxicity studies of triterpenic esters isolated form Keetia leucantha and crude extracts. AB - BACKGROUND: Considering the need for new anti-malarial drugs, further investigations on Keetia leucantha (Rubiaceae), an in vitro antiplasmodial plant traditionally used to treat malaria, were carried out. This paper aimed to assess the in vivo anti-malarial efficacy of K. leucantha triterpenic esters previously identified as the most in vitro active components against Plasmodium falciparum and their potential toxicity as well as those of anti-malarial extracts. RESULTS: These eight triterpenic esters and the major antiplasmodial triterpenic acids, ursolic and oleanolic acids, were quantified in the twigs dichloromethane extract by validated HPLC-UV methods. They account for about 19% of this extract (16.9% for acids and 1.8% for esters). These compounds were also identified in trace in the twigs decoction by HPLC-HRMS. Results also showed that extracts and esters did not produce any haemolysis, and were devoid of any acute toxicity at a total cumulative dose of 800 and 150 mg/kg respectively. Moreover, esters given intraperitoneally at 50 mg/kg/day to Plasmodium berghei-infected mice showed a very significant (p < 0.01) parasitaemia inhibition (27.8 +/- 5.4%) on day 4 post infection compared to vehicle-treated mice. CONCLUSIONS: These results bring out new information on the safety of K. leucantha use and on the identification of anti-malarial compounds from its dichloromethane extract. Its activity can be explained by the presence of triterpenic acids and esters which in vivo activity and safety were demonstrated for the first time. PMID- 29017556 TI - Evidence for host specificity of Theileria capreoli genotypes in cervids. AB - Data on the prevalence of piroplasms in buffaloes and large game animal species are lacking from several central European countries. Therefore, to investigate the presence of Babesia/Theileria DNA in these hosts, 239 blood and 270 spleen samples were taken from cervids (red, fallow, and roe deer), as well as from water buffaloes, mouflons, and wild boars in southwestern Hungary, followed by DNA extraction and molecular analysis for piroplasms. All samples from buffaloes and wild boars were PCR negative. Based on spleen samples, the prevalence of piroplasms was significantly higher in red deer (41.7%) than in fallow deer (23.5%). Two genotypes of Theileria capreoli were identified, which showed significant association with their host species (i.e. genotype "capreoli-CE1" was exclusively found in roe deer, whereas red and fallow deer harbored only genotype "elaphi-CE1"). Genotype "elaphi-CE1" of T. capreoli was also detected in one mouflon. No Babesia spp. were identified. In conclusion, in the evaluated region, genotypes of T. capreoli show host-associations among cervids, and at least one of these genotypes may infect mouflons. PMID- 29017557 TI - Organizational participatory research: a systematic mixed studies review exposing its extra benefits and the key factors associated with them. AB - BACKGROUND: In health, organizational participatory research (OPR) refers to health organization members participating in research decisions, with university researchers, throughout a study. This non-academic partner contribution to the research may take the form of consultation or co-construction. A drawback of OPR is that it requires more time from all those involved, compared to non participatory research approaches; thus, understanding the added value of OPR, if any, is important. Thus, we sought to assess whether the OPR approach leads to benefits beyond what could be achieved through traditional research. METHODS: We identified, selected, and appraised OPR health literature, and at each stage, two team members independently reviewed and coded the literature. We used quantitative content analysis to transform textual data into reliable numerical codes and conducted a logistic regression to test the hypothesis that a co construction type OPR study yields extra benefits with a greater likelihood than consultation-type OPR studies. RESULTS: From 8873 abstracts and 992 full text papers, we distilled a sample of 107 OPR studies. We found no difference between the type of organization members' participation and the likelihood of exhibiting an extra benefit. However, the likelihood of an OPR study exhibiting at least one extra benefit is quadrupled when the impetus for the study comes from the organization, rather than the university researcher(s), or the organization and the university researcher(s) together (OR = 4.11, CI = 1.12-14.01). We also defined five types of extra benefits. CONCLUSIONS: This review describes the types of extra benefits OPR can yield and suggests these benefits may occur if the organization initiates the OPR. Further, this review exposes a need for OPR authors to more clearly describe the type of non-academic partner participation in key research decisions throughout the study. Detailed descriptions will benefit others conducting OPR and allow for a re-examination of the relationship between participation and extra benefits in future reviews. PMID- 29017558 TI - Stress, health and quality of life of female migrant domestic workers in Singapore: a cross-sectional study. AB - BACKGROUND: There is a global increase in migrant workers. In Singapore, there are over 230,000 migrant domestic workers (MDWs). Female MDWs may experience high levels of stress and social isolation, which may negatively impact on their health and quality of life. There have also been documented cases of abuse and exploitation. However, there is a lack of empirical research with this population. This study aimed to investigate factors impacting on the health and quality of life of female MDWs in Singapore, including socio-demographic and job related characteristics, stress, social isolation, and working management style. METHODS: A cross-sectional survey was carried out with 182 female MDWs in Singapore. The survey examined health and quality of life (WHOQoL-Bref), social connectedness (the Friendship Scale), and preferred and experienced working management style (the Theory X and Theory Y Questionnaire). Descriptive analyses were carried out in addition to ANOVA, t-tests, and chi-square tests, followed by a multivariate analysis using linear regression. RESULTS: Participants were found to have good overall quality of life and satisfaction with health. Age and working experience were found to be significantly (p < 0.05) associated with overall quality of life and three domains (psychological, social, and environmental health). Agreement between experienced and preferred working management style was also found to be associated with higher quality of life scores (with the exception of the social relationships domain). Though women reported relatively good overall quality of life, more than half of participants reported feeling stressed. In addition, nearly 20% of participants reported being isolated or very isolated. Stress was identified to be associated with isolation. In the multivariate analysis, stress was found to contribute to worse quality of life in all domains except social relationships, after adjusting for confounders. Social connectedness was positively associated with all domains of quality of life, and agreement of working management style was positively associated with physical health, psychological health and environmental quality of life. CONCLUSIONS: The findings serve as an evidence-base pointing to the need for policies aimed at decreasing stress and social isolation among female MDWs in order to improve their health and quality of life. PMID- 29017559 TI - Salidroside protects against foam cell formation and apoptosis, possibly via the MAPK and AKT signaling pathways. AB - BACKGROUND: Foam cell formation and apoptosis are closely associated with atherosclerosis pathogenesis. We determined the effect of salidroside on oxidized low-density lipoprotein (ox-LDL)-induced foam cell formation and apoptosis in THP1 human acute monocytic leukemia cells and investigated the associated molecular mechanisms. METHODS: THP1-derived macrophages were incubated with salidroside for 5 h and then exposed to ox-LDL for 24 h to induce foam cell formation. Cytotoxicity, lipid deposition, apoptosis, and the expression of various proteins were tested using the CCK8 kit, Oil Red O staining, flow cytometry, and western blotting, respectively. RESULTS: Ox-LDL treatment alone promoted macrophage-derived foam cell formation, while salidroside treatment alone inhibited it (p < 0.05). The number of early/late apoptotic cells decreased with salidroside treatment in a dose-dependent manner (p < 0.05). Salidroside dramatically upregulated nuclear factor erythroid 2-related factor 2, but had no effect on heme oxygenase-1 expression; moreover, it markedly downregulated ox-LDL receptor 1 and upregulated ATP-binding cassette transporter A1. Salidroside also obviously decreased the phosphorylation of JNK, ERK, p38 MAPK, and increased that of Akt. However, the total expression of these proteins was not affected. CONCLUSION: Based on our findings, we speculate that salidroside can suppress ox LDL-induced THP1-derived foam cell formation and apoptosis, partly by regulating the MAPK and Akt signaling pathways. PMID- 29017560 TI - Effect of intra-pregnancy nonsurgical periodontal therapy on inflammatory biomarkers and adverse pregnancy outcomes: a systematic review with meta analysis. AB - BACKGROUND: The aim of this systematic review with meta-analysis was to analyze the effects of intra-pregnancy nonsurgical periodontal therapy on periodontal inflammatory biomarkers and adverse pregnancy outcomes. METHODS: On June 5, 2017, we searched PubMed, Cochrane, SCOPUS, Web of Science, LILACS, ProQuest, Open Grey, and Google Scholar databases. Randomized clinical trials in which pregnant women with chronic periodontitis underwent nonsurgical periodontal therapy, compared with an untreated group, tested for inflammatory biomarkers, and followed till delivery were included. Primary outcomes were preterm birth, low birth weight, and preeclampsia. Meta-analysis was performed with 5.3.5 version of Review Manager software. RESULTS: We found 565 references in the databases, 326 after duplicates removal, 28 met criteria for full text reading, and 4 met eligibility criteria for quantitative and qualitative synthesis. Intra-pregnancy nonsurgical periodontal therapy improved periodontal clinical parameters (periodontal pocket depth, clinical attachment level, and bleeding on probing) and reduced biomarker level from gingival crevicular fluid (GCF), and some from blood serum; however, it did not influence biomarker level from umbilical cord blood. Meta-analysis showed tendency for reduction of the risk of preterm birth before 37 weeks for treated group (risk ratio (RR) = 0.54, 95% CI 0.38-0.77; p = 0.0007; inconsistency indexes (I2) 32%) but did not show any difference for low birth weight occurrence (RR = 0.78, 95%CI 0.50-1.21; p = 0.27; I2 41%). No included study considered preeclampsia as a gestational outcome. CONCLUSIONS: These results demonstrated that the intra-pregnancy nonsurgical periodontal therapy decreased periodontal inflammatory biomarker levels from gingival crevicular fluid and some from serum blood, with no influence on inflammatory biomarker level from cord blood, and it did not consistently reduce adverse gestational adverse outcome occurrence. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42015027750. PMID- 29017561 TI - Trial and error: evaluating and refining a community model of HIV testing in Australia. AB - BACKGROUND: The 2012 regulatory approval of HIV rapid point of care (RPOC) tests in Australia and a national strategic focus on HIV testing provided a catalyst for implementation of non-clinical HIV testing service models. PRONTO! opened in 2013 as a two-year trial delivering peer-led community-based HIV RPOC tests targeting gay, bisexual and other men who have sex with men (GBM), with the aim of increasing HIV testing frequency. Initial data suggested this aim was not achieved and, as part of a broader service evaluation, we sought to explore client acceptability and barriers to testing at PRONTO! to refine the service model. METHODS: We present descriptive and thematic analyses of data from two in depth evaluation surveys and four focus groups with PRONTO! clients focused on service acceptability, client testing history, intentions to test and barriers to testing for HIV and other sexually transmitted infections (STIs). RESULTS: The three novel aspects of the PRONTO! model, testing environment, rapid-testing, peer-staff, were reported to be highly acceptable among survey and focus group participants. Focus group discussions revealed that the PRONTO! model reduced anxiety associated with HIV testing and created a comfortable environment conducive to discussing sexual risk and health. However, an absence of STI testing at PRONTO!, driven by restrictions on medical subsidies for STI testing and limited funds available at the service level created a barrier to HIV testing. An overwhelming majority of PRONTO! clients reported usually testing for STIs alongside HIV and most reported plans to seek STI testing after testing for HIV at PRONTO!. When deciding where, when and what to test for, clients reported balancing convenience and relative risk and consequences for each infection as guiding their decision-making. CONCLUSIONS: A community-based and peer-led HIV testing model reduced previously reported barriers to HIV testing, while introducing new barriers. The absence of STI testing at PRONTO! and the need to access multiple services for comprehensive sexual health screening, created a significant service engagement barrier for some clients. Understanding client motivations to access testing and ensuring novel service models meet client needs is crucial for developing acceptable sexual health services for high-risk populations. PMID- 29017563 TI - Herceptin(r) (trastuzumab) in HER2-positive early breast cancer: protocol for a systematic review and cumulative network meta-analysis. AB - BACKGROUND: Human epidermal growth factor receptor 2-positive (HER2+) breast cancer is an aggressive disease that makes up about 20% of all invasive breast cancers. HER2+ breast cancer is associated with poor prognosis and high mortality rates, but the development of HER2-targeted therapies, such as originator trastuzumab (Herceptin(r)), has substantially improved patient survival. Numerous clinical trials and reviews have investigated the efficacy of HER2-targeted therapies over the past few decades; however, no study has specifically investigated the vast body of evidence on trastuzumab in comparison to chemotherapy regimens, endocrine therapies, and other targeted therapies. This systematic review and cumulative network meta-analysis (NMA) will synthesize available evidence to evaluate the survival benefit conferred by the addition of originator trastuzumab to standard chemotherapy and to compare the most widely used trastuzumab regimens in patients with HER2+ early breast cancer, based on results from randomized controlled trials (RCTs) and comparative observational studies. METHODS/DESIGN: A systematic search of Embase, MEDLINE(r), and the Cochrane Library has been designed by an experienced medical information specialist and peer reviewed by another senior information specialist. RCTs and comparative observational studies of patients with HER2+ early breast cancer indexed from 1990 onwards will be eligible for inclusion. Two investigators will independently assess studies for inclusion and use standardized data extraction templates to collect data on study and patient characteristics. The primary outcome of interest is overall survival. Bayesian cumulative NMA methods will be used to quantify the evolution of publicly available evidence using both fixed and random effects models. DISCUSSION: This study will evaluate survival trends associated with originator trastuzumab in patients with HER2+ early breast cancer. As originator trastuzumab has been researched in both clinical and real world settings for close to 20 years, a cumulative NMA is likely to show improved precision around the parameter estimates for trastuzumab now compared with when the drug was initially launched in the USA in 1998. A better understanding of the evolution of publicly available comparative evidence for originator trastuzumab will further inform treatment for patients with HER2+ early breast cancer, providing benefit to patients, health professionals, and researchers. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42017055763 https://www.crd.york.ac.uk/PROSPERO. PMID- 29017562 TI - Contextual tumor suppressor function of T cell death-associated gene 8 (TDAG8) in hematological malignancies. AB - BACKGROUND: Extracellular acidosis is a condition found within the tumor microenvironment due to inadequate blood perfusion, hypoxia, and altered tumor cell metabolism. Acidosis has pleiotropic effects on malignant progression; therefore it is essential to understand how acidosis exerts its diverse effects. TDAG8 is a proton-sensing G-protein-coupled receptor that can be activated by extracellular acidosis. METHODS: TDAG8 gene expression was analyzed by bioinformatic analyses and quantitative RT-PCR in human hematological malignancies. Retroviral transduction was used to restore TDAG8 expression in U937, Ramos and other blood cancer cells. Multiple in vitro and in vivo tumorigenesis and metastasis assays were employed to evaluate the effects of TDAG8 expression on blood cancer progression. Western blotting, immunohistochemistry and biochemical approaches were applied to elucidate the underlying mechanisms associated with the TDAG8 receptor pathway. RESULTS: TDAG8 expression is significantly reduced in human blood cancers in comparison to normal blood cells. Severe acidosis, pH 6.4, inhibited U937 cancer cell proliferation while mild acidosis, pH 6.9, stimulated its proliferation. However, restoring TDAG8 gene expression modulated the U937 cell response to mild extracellular acidosis and physiological pH by reducing cell proliferation. Tumor xenograft experiments further revealed that restoring TDAG8 expression in U937 and Ramos cancer cells reduced tumor growth. It was also shown U937 cells with restored TDAG8 expression attached less to Matrigel, migrated slower toward a chemoattractant, and metastasized less in severe combined immunodeficient mice. These effects correlated with a reduction in c-myc oncogene expression. The mechanistic investigation indicated that Galpha13/Rho signaling arbitrated the TDAG8-mediated c-myc oncogene repression in response to acidosis. CONCLUSIONS: This study provides data to support the concept that TDAG8 functions as a contextual tumor suppressor down-regulated in hematological malignancies and potentiation of the TDAG8 receptor pathway may be explored as a potential anti tumorigenic approach in blood cancers. PMID- 29017564 TI - Factors influencing risky sexual behaviour among Mozambican miners: a socio epidemiological contribution for HIV prevention framework in Mozambique. AB - BACKGROUND: Information dealing with social and behavioural risk factors as well as their mechanisms among Mozambican migrants working in South African mines remains undocumented. This study aims to understand the various factors influencing HIV-related risk behaviours and the resulting HIV positive status of Mozambican miners employed by South African mines. This analysis was undertaken in order to inform a broader and more effective HIV preventive framework in Mozambique. METHOD: This study relied upon data sourced from the first Integrated Biological and Behavioural Survey among Mozambican miners earning their living in South African mines. It employs quantitative techniques using standard statistical tools to substantiate the laid-down objectives. The primary technique applied in this paper is the multivariable statistical method used in the formulation and application of a proximate determinants framework. RESULTS: The odds of reporting one sexual partner were roughly three times higher for miners working as perforators as opposed to other types of occupation. As well, the odds of condom use - always or sometimes - for miners in the 31-40 age group were three times higher than the odds of condom use in the 51+ age group. Miners with lower education levels were less likely to use condoms. The odds of being HIV positive when the miner reports use of alcohol or drugs (sometimes/always) is 0.32 times lower than the odds for those reporting never use of alcohol or drugs. And finally, the odds of HIV positive status for those using condoms were 2.16 times that of miners who never used condoms, controlling for biological and other proximate determinants. CONCLUSION: In Mozambique, behavioural theory emphasising personal behavioural changes is the main strategy to combat HIV among miners. Our findings suggest there is a need to change thinking processes about how to influence safer sexual behaviour. This is viewed to be the result of a person's individual decision, due to of the complexity of social and contextual factors that may also influence sexual behaviours. This only stresses the need for HIV prevention strategies to exclusively transcend individual factors while considering the broader social and contextual phenomena influencing HIV risk among Mozambican miners. PMID- 29017565 TI - Safety and efficacy of Qishen granules in patients with chronic heart failure: study protocol for a randomized controlled trial. AB - BACKGROUND: Chronic heart failure (CHF), the final stage of various cardiovascular diseases, is a major public health problem resulting in significant hospitalization rates, mortality, and huge health care costs despite advances in the treatment and management of heart failure and heart failure related risk factors. Qishen granules (QSG), a Chinese herbal formula, is widely used by traditional Chinese medicine (TCM) practitioners to treat CHF. Several animal experimental studies have showed that QSG can significantly relieve the heart failure symptoms in CHF rat models. However, there is as yet no standard clinical trial to confirm this. Thus, the investigators are conducting this study to evaluate the efficacy and safety of QSG in a large, and varied population. METHODS/DESIGN: This study is designed as a randomized, placebo-controlled, multi center, double-blind clinical trial with parallel groups. A total of 200 patients with CHF will be recruited and randomly allocated to either the QSG treatment group or the placebo group (in a 1:1 ratio). The patients will receive QSG or placebo granules twice a day for 12 weeks. The primary outcome is the proportion of patients in the QSG group, compared with the placebo group, demonstrating a more than 30% decrease in NT-proBNP level during 12 weeks of treatment. The secondary outcomes consist of composite cardiac events, New York Heart Association functional classification, 6-minute walking distance, left ventricular ejection fraction, patient quality of life, and the TCM syndrome integral scale. DISCUSSION: On a background of standard treatment, QSG may further reduce the levels of NT-proBNP. This trial will provide high-quality evidence on the efficacy and safety of QSG in treating CHF, thus providing reference for clinical application of QSG. TRIAL REGISTRATION: Clinical Trials.gov: NCT03027375 . Registered on 16 January 2017. PMID- 29017566 TI - Right ventricular functional analysis utilizing first pass radionuclide angiography for pre-operative ventricular assist device planning: a multi modality comparison. AB - BACKGROUND: Advanced heart failure treated with a left ventricular assist device is associated with a higher risk of right heart failure. Many advanced heart failures patients are treated with an ICD, a relative contraindication to MRI, prior to assist device placement. Given this limitation, left and right ventricular function for patients with an ICD is calculated using radionuclide angiography utilizing planar multigated acquisition (MUGA) and first pass radionuclide angiography (FPRNA), respectively. Given the availability of MRI protocols that can accommodate patients with ICDs, we have correlated the findings of ventricular functional analysis using radionuclide angiography to cardiac MRI, the reference standard for ventricle function calculation, to directly correlate calculated ejection fractions between these modalities, and to also assess agreement between available echocardiographic and hemodynamic parameters of right ventricular function. METHODS: A retrospective review from January 2012 through May 2014 was performed to identify advanced heart failure patients who underwent both cardiac MRI and radionuclide angiography for ventricular functional analysis. Nine heart failure patients (8 men, 1 woman; mean age of 57.0 years) were identified. The average time between the cardiac MRI and radionuclide angiography exams was 38.9 days (range: 1 - 119 days). All patients undergoing cardiac MRI were scanned using an institutionally approved protocol for ICD with no device-related complications identified. A retrospective chart review of each patient for cardiomyopathy diagnosis, clinical follow-up, and echocardiogram and right heart catheterization performed during evaluation was also performed. RESULTS: The 9 patients demonstrated a mean left ventricular ejection fraction (LVEF) using cardiac MRI of 20.7% (12 - 40%). Mean LVEF using MUGA was 22.6% (12 - 49%). The mean right ventricular ejection fraction (RVEF) utilizing cardiac MRI was 28.3% (16 - 43%), and the mean RVEF calculated by FPRNA was 32.6% (9 - 56%). The mean discrepancy for LVEF between cardiac MRI and MUGA was 4.1% (0 - 9%), and correlation of calculated LVEF using cardiac MRI and MUGA demonstrated an R of 0.9. The mean discrepancy for RVEF between cardiac MRI and FPRNA was 12.0% (range: 2 - 24%) with a moderate correlation (R = 0.5). The increased discrepancies for RV analysis were statistically significant using an unpaired t-test (t = 3.19, p = 0.0061). Echocardiogram parameters of RV function, including TAPSE and FAC, were for available for all 9 patients and agreement with cardiac MRI demonstrated a kappa statistic for TAPSE of 0.39 (95% CI of 0.06 - 0.72) and for FAC of 0.64 (95% of 0.21 - 1.00). CONCLUSION: Heart failure patients are increasingly requiring left ventricular assist device placement; however, definitive evaluation of biventricular function is required due to the increased mortality rate associated with right heart failure after assist device placement. Our results suggest that FPRNA only has a moderate correlation with reference standard RVEFs calculated using cardiac MRI, which was similar to calculated agreements between cardiac MRI and echocardiographic parameters of right ventricular function. Given the need for identification of patients at risk for right heart failure, further studies are warranted to determine a more accurate estimate of RVEF for heart failure patients during pre-operative ventricular assist device planning. PMID- 29017569 TI - Impact of severe left ventricular dysfunction on in-hospital and mid-term outcomes of Chinese patients undergoing first isolated off-pump coronary artery bypass grafting. AB - BACKGROUND: Few studies focused on evaluating the impacts of preoperative severe left ventricular dysfunction on clinical outcomes of patients undergoing off-pump coronary artery bypass grafting surgery (OPCAB). This single center retrospective study aimed to evaluate the impacts of severe left ventricular dysfunction on in hospital and mid-term clinical outcomes of Chinese patients undergoing first, scheduled, and isolated OPCAB surgery. METHODS: From January 2010 to December 2014, 2032 eligible patients were included in this study and were divided into 3 groups: a severe group (patients with preoperative left ventricular ejection fraction (LVEF) of <=35%, n = 128), an impaired group (patients with preoperative LVEF of 36-50%, n = 680), and a normal group (patients with preoperative LVEF of >50%, n = 1224). In-hospital and follow-up clinical outcomes were investigated and compared. RESULTS: Patients in the severe group compared to the other 2 groups had higher in-hospital mortality and higher incidences of low cardiac output and prolonged ventilation. Kaplan-Meier curves showed a similar cumulative follow-up survival between the severe group and the impaired group (chi2 = 1.980, Log-rank p = 0.159) and between the severe group and the normal group (chi2 = 2.701, Log-rank p = 0.102). Multivariate Cox regression indicated that grouping was not a significant variable related to mid-term all-cause mortality. No significant difference was found in the rate of repeat revascularization between the severe group (2.4%) and the other 2 groups. CONCLUSIONS: Patients with preoperative LVEF of <=35% compared to preoperative LVEF of >35% increased the risk of in-hospital death and incidences of postoperative low cardiac output and prolonged ventilation, but shared similar mid-term all-cause mortality and repeat revascularization after OPCAB surgery. PMID- 29017567 TI - Impairment of IGF2 gene expression in prostate cancer is triggered by epigenetic dysregulation of IGF2-DMR0 and its interaction with KLF4. AB - BACKGROUND: Human cancer cells often exhibit impaired IGF2 expression and the underlying mechanisms are multifaceted and complex. Besides the well-known imprinting control region IGF2/H19-ICR, the involvement of a differentially methylated region in the promoter P0 of IGF2 gene (IGF2-DMR0) has been suggested. Here, we evaluate several mechanisms potentially leading to up- and/or down regulation of IGF2 expression in prostate cancer and present a novel role of Kruppel-like factor 4 (KLF4) as a transcriptional regulator of IGF2 binding in IGF2-DMR0. METHODS: Putative binding sites for transcription factors were identified in IGF2-DMR0 using JASPAR CORE database. Gene expressions were analyzed by RT-qPCR in prostate carcinoma and adjacent benign prostate hyperplasia samples obtained by radical prostatectomy (86 RP-PCa and 47 RP-BPH) and BPH obtained by transurethral prostate resection (13 TUR-BPH). Pyrosequencing and qMSP were used for DNA methylation studies in IGF2-DMR0, IGF2/H19-ICR and Glutathione-S-transferase-P1 (GSTP1) promoter. Loss of imprinting (LOI) was analyzed by RFLP. Copy number variation (CNV) test was performed using qBiomarker CNV PCR Assay. KLF4-binding and histone-modifications were analyzed by ChIP-qPCR in prostate cancer cell lines exhibiting differentially methylated IGF2-DMR0 (LNCaP hypomethylated and DU145 hypermethylated). KLF4 protein was analyzed by western blot. Statistical associations of gene expression to methylation, IGF2 LOI and CNV were calculated by Mann-Whitney-U-test. Correlations between gene expression and methylation levels were evaluated by Spearman's-Rank-Correlation test. RESULTS: We found a significant reduction of IGF2 expression in the majority of RP-PCa and RP-BPH in comparison to TUR-BPH. Analyzing potential molecular reasons, we found in RP-PCa and RP-BPH in comparison to TUR-BPH a significant hypomethylation of IGF2-DMR0, which coincided with hypermethylation of GSTP1-promoter, a prominent marker of prostate tumors. In contrast, IGF2 LOI and CNV did not associate significantly with up- and/or down-regulation of IGF2 expression in prostate tumors. By analyzing IGF2-DMR0, we detected a consensus sequence for KLF4 with a z-score of 7.6. Interestingly, we found that KLF4 binds to hypomethylated (17%) IGF2-DMR0 enriched with H3K9me3 and H3K27me3 (LNCaP), but does not bind under hypermethylated (85%) and H3K4me3-enriched conditions (DU145). KLF4 expression was detected in TUR-BPH as well as in RP-BPH and RP-PCa and showed a highly significant correlation to IGF2 expression. CONCLUSIONS: Our study demonstrated that in human prostate cancer the impairment of IGF2 expression is accompanied by hypomethylation of IGF2-DMR0. We revealed that KLF4 is a putative transcriptional regulator of IGF2, which binds in IGF2-DMR0 in dependence of the prevailing epigenetic state in this region. Herewith we provide complementary new insights into IGF2 dysregulation mechanisms as a critical process in prostate tumorigenesis. PMID- 29017570 TI - Development of a short scale for assessing economic environmental aspects in patients with spinal diseases using Rasch analysis. AB - BACKGROUND: Economic environmental factors represent important barriers to participation and have deleterious effects on quality of life (QOL) in persons with spinal diseases (SpD). While economic factors are anchored in the International Classification of Functioning, Disability and Health, their influence on QOL and participation from patients' perspectives is an infrequent focus of research. The aim of the present research is to calibrate a culturally adapted Rasch-based questionnaire assessing economic QOL in patients with SpD. METHODS: The 11-items of the German economic-QOL-scale were answered by 325 patients with SpD on a four-point Likert-scale. Fit to the Rasch measurement model was investigated by testing for stochastic ordering of the items, unidimensionality, local independence, and differential item functioning (DIF). RESULTS: After adjusting for local dependency, fit to the Rasch model was achieved with a non-significant item-trait interaction (chi-squaredf = 20 = 34.8, p = 0.021). The person separation reliability equaled 0.88, the scale was free from age- or gender-related DIF, and unidimensionality could be verified. CONCLUSIONS: The Rasch-based German version of the economic-QOL-scale represents a suitable instrument to investigate the influences of economic factors on patients' QOL at a group and individual level. It can be easily applied in research and practice and may be administered quickly in combination with other instruments. The short test duration implies a low test burden for patients and a minimum of time expenditure by clinicians when evaluating the results. PMID- 29017568 TI - Polychlorinated biphenyls and depression: cross-sectional and longitudinal investigation of a dopamine-related Neurochemical path in the German HELPcB surveillance program. AB - BACKGROUND: Exposure to polychlorinated biphenyls (PCBs) is associated with depressive symptomatology. A cause of depressive symptoms is a disturbance in the neurotransmitter system of dopamine (DA). Animal as well as human studies report that PCBs can influence the DA system. This study examined whether PCB-related depressive symptoms are affected by DA metabolites in humans with high PCB body burden. METHODS: This study is part of the German HELPcB surveillance program (Health Effects in high Level exposure to PCB) for occupationally exposed workers and their relatives. Data was collected from 178 participants on two measurement time points (t1 and t2) with a one-year time lag in between the two time points. PCBs were analyzed in plasma via human biomonitoring and a validated questionnaire was used to identify existence and severity of depressive symptoms. As a surrogate for DA, we measured its metabolites homovanillic acid (HVA) and vanillylmandelic acid (VMA) in urine. Mediation analyses were performed to test whether the association between PCB exposure and severity of depressive symptoms is mediated by urinary concentration of DA metabolites HVA and VMA. The mediation was tested with the SPSS macro MEDIATE. RESULTS: We found a significant mediation over time for lower-chlorinated, higher-chlorinated and dioxin-like PCBs. The positive association between PCB exposure with severity of depressive symptoms was mediated by the main DA metabolite HVA. At t1 a higher exposure with PCBs was associated with lower concentration in urinary HVA. A reduced HVA concentration at t1 was correlated with increased depressive symptoms severity at t2. No meditations were found for VMA. CONCLUSIONS: This work indicates that the association of PCB exposure and an increase of depressive symptoms after one year is mediated by the DA metabolite HVA as a surrogate for DA. These are first steps towards finding an explanation for an underlying neurochemical pathomechanism of PCB-related depressive symptomatology. PMID- 29017572 TI - Temporal genetic differentiation in Glossina pallidipes tsetse fly populations in Kenya. AB - BACKGROUND: Glossina pallidipes is a major vector of both Human and Animal African Trypanosomiasis (HAT and AAT) in Kenya. The disease imposes economic burden on endemic regions in Kenya, including south-western Kenya, which has undergone intense but unsuccessful tsetse fly control measures. We genotyped 387 G. pallidipes flies at 13 microsatellite markers to evaluate levels of temporal genetic variation in two regions that have been subjected to intensive eradication campaigns from the 1960s to the 1980s. One of the regions, Nguruman Escarpment, has been subject to habitat alteration due to human activities, while the other, Ruma National Park, has not. In addition, Nguruman Escarpment is impacted by the movement of grazing animals into the area from neighboring regions during the drought season. We collected our samples from three geographically close sampling sites for each of the two regions. Samples were collected between the years 2003 and 2015, spanning ~96 tsetse fly generations. RESULTS: We established that allelic richness averaged 3.49 and 3.63, and temporal Ne estimates averaged 594 in Nguruman Escarpment and 1120 in Ruma National Park. This suggests that genetic diversity is similar to what was found in previous studies of G. pallidipes in Uganda and Kenya, implying that we could not detect a reduction in genetic diversity following the extensive control efforts during the 1960s to the 1980s. However, we did find differences in temporal patterns of genetic variation between the two regions, indicated by clustering analysis, pairwise FST, and Fisher's exact tests for changes in allele and genotype frequencies. In Nguruman Escarpment, findings indicated differentiation among samples collected in different years, and evidence of local genetic bottlenecks in two locations previous to 2003, and between 2009 and 2015. In contrast, there was no consistent evidence of differentiation among samples collected in different years, and no evidence of local genetic bottlenecks in Ruma National Park. CONCLUSION: Our findings suggest that, despite extensive control measures especially between the 1960s and the 1980s, tsetse flies in these regions persist with levels of genetic diversity similar to that found in populations that did not experience extensive control measures. Our findings also indicate temporal genetic differentiation in Nguruman Escarpment detected at a scale of > 80 generations, and no similar temporal differentiation in Ruma National Park. The different level of temporal differentiation between the two regions indicates that genetic drift is stronger in Nugruman Escarpment, for as yet unknown reasons, which may include differences in land management. This suggests land management may have an impact on G. pallidipes population genetics, and reinforces the importance of long term monitoring of vector populations in estimates of parameters needed to model and plan effective species-specific control measures. PMID- 29017571 TI - DNA damage response and cancer therapeutics through the lens of the Fanconi Anemia DNA repair pathway. AB - Fanconi Anemia (FA) is a rare, inherited genomic instability disorder, caused by mutations in genes involved in the repair of interstrand DNA crosslinks (ICLs). The FA signaling network contains a unique nuclear protein complex that mediates the monoubiquitylation of the FANCD2 and FANCI heterodimer, and coordinates activities of the downstream DNA repair pathway including nucleotide excision repair, translesion synthesis, and homologous recombination. FA proteins act at different steps of ICL repair in sensing, recognition and processing of DNA lesions. The multi-protein network is tightly regulated by complex mechanisms, such as ubiquitination, phosphorylation, and degradation signals that are critical for the maintenance of genome integrity and suppressing tumorigenesis. Here, we discuss recent advances in our understanding of how the FA proteins participate in ICL repair and regulation of the FA signaling network that assures the safeguard of the genome. We further discuss the potential application of designing small molecule inhibitors that inhibit the FA pathway and are synthetic lethal with DNA repair enzymes that can be used for cancer therapeutics. PMID- 29017573 TI - Gad67 haploinsufficiency reduces amyloid pathology and rescues olfactory memory deficits in a mouse model of Alzheimer's disease. AB - BACKGROUND: Alzheimer's disease (AD) is the most common age-related neurodegenerative disorder, affecting millions of people worldwide. Although dysfunction of multiple neurotransmitter systems including cholinergic, glutamatergic and GABAergic systems has been associated with AD progression the underlying mechanisms remain elusive. We and others have recently found that GABA content is elevated in AD brains and linked to cognitive deficits in AD mouse models. The glutamic acid decarboxylase 67 (GAD67) is the major enzyme converting glutamate into GABA and has been implied in a number of neurological disorders such as epilepsy and schizophrenia. However, whether Gad67 is involved in AD pathology has not been well studied. Here, we investigate the functional role of GAD67 in an AD mouse model with Gad67 haploinsufficiency that is caused by replacing one allele of Gad67 with green fluorescent protein (GFP) gene during generation of GAD67-GFP mice. METHODS: To genetically reduce GAD67 in AD mouse brains, we crossed the Gad67 haploinsufficient mice (GAD67-GFP+/-) with 5xFAD mice (harboring 5 human familial AD mutations in APP and PS1 genes) to generate a new line of bigenic mice. Immunostaining, ELISA, electrophysiology and behavior test were applied to compare the difference between groups. RESULTS: We found that reduction of GAD67 resulted in a significant decrease of amyloid beta production in 5xFAD mice. Concurrently, the abnormal astrocytic GABA and tonic GABA currents, as well as the microglial reactivity were significantly reduced in the 5xFAD mice with Gad67 haploinsufficiency. Importantly, the olfactory memory deficit of 5xFAD mice was rescued by Gad67 haploinsufficiency. CONCLUSIONS: Our results demonstrate that GAD67 plays an important role in AD pathology, suggesting that GAD67 may be a potential drug target for modulating the progress of AD. PMID- 29017574 TI - Recommendations for reporting of systematic reviews and meta-analyses of diagnostic test accuracy: a systematic review. AB - BACKGROUND: This study is to perform a systematic review of existing guidance on quality of reporting and methodology for systematic reviews of diagnostic test accuracy (DTA) in order to compile a list of potential items that might be included in a reporting guideline for such reviews: Preferred Reporting Items for Systematic Reviews and Meta-Analyses of Diagnostic Test Accuracy (PRISMA-DTA). METHODS: Study protocol published on EQUATOR website. Articles in full text or abstract form that reported on any aspect of reporting systematic reviews of diagnostic test accuracy were eligible for inclusion. We used the Ovid platform to search Ovid MEDLINE(r), Ovid MEDLINE(r) In-Process & Other Non-Indexed Citations and Embase Classic+Embase through May 5, 2016. The Cochrane Methodology Register in the Cochrane Library (Wiley version) was also searched. Title and abstract screening followed by full-text screening of all search results was performed independently by two investigators. Guideline organization websites, published guidance statements, and the Cochrane Handbook for Diagnostic Test Accuracy were also searched. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Standards for Reporting Diagnostic Accuracy (STARD) were assessed independently by two investigators for relevant items. RESULTS: The literature searched yielded 6967 results; 386 were included after title and abstract screening and 203 after full-text screening. After reviewing the existing literature and guidance documents, a preliminary list of 64 items was compiled into the following categories: title (three items); introduction (two items); methods (35 items); results (13 items); discussion (nine items), and disclosure (two items). CONCLUSION: Items on the methods and reporting of DTA systematic reviews in the present systematic review will provide a basis for generating a PRISMA extension for DTA systematic reviews. PMID- 29017575 TI - Evidence for viable and stable triploid Trypanosoma congolense parasites. AB - BACKGROUND: Recent whole genome sequencing (WGS) analysis identified a viable triploid strain of Trypanosoma congolense. This triploid strain BANANCL2 was a clone of the field isolate BANAN/83/CRTRA/64 that was collected from cattle in Burkina Faso in 1983. RESULTS: We demonstrated the viability and stability of triploidy throughout the complete life-cycle of the parasite by infecting tsetse flies with the triploid clone BANANCL2. Proboscis-positive tsetse flies efficiently transmitted the parasites to mice resulting in systemic infections. WGS of the parasites was performed at all life-cycle stages, and a method based on a block alternative allele frequency spectrum was developed to efficiently detect the ploidy profiles of samples with low read depth. This approach confirmed the triploid profile of parasites throughout their life-cycle in the tsetse fly and the mammalian host, demonstrating that triploidy is present at all stages and is stable over time. CONCLUSION: The presence of viable field-isolated triploid parasites indicates another possible layer of genetic diversity in natural T. congolense populations. The comparison between triploid and diploid parasites provides a unique model system to study the impact of chromosome copy number variations in African trypanosomes. In addition, the consequences of triploidy can be further investigated using this stable triploid model. PMID- 29017576 TI - Traditional knowledge hiding in plain sight - twenty-first century ethnobotany of the Chacobo in Beni, Bolivia. AB - BACKGROUND: The Chacobo are a Panoan speaking tribe of about 1000 members (300+ adults) in Beni, Bolivia. Originally nomadic, the Chacabo were relocated to their current main location in the 1960s. Researchers have visited the Chacabo since 1911. A first more detailed anthropological report exists from the late 1960s, and ecological-ethnobotanical studies were conducted in the 1980s and 1990s. The presented work represents a complete ethnobotanical inventory of the entire adult Chacobo population, with interviews and plant collection conducted directly by Chacobo counterparts. METHODS: Based on previous reports and our preliminary studies, we hypothesized that twenty-first century Chacobo plant use centered on income generation, and that traditional plant use related to household utensils, medicine and traditional crop varieties had almost disappeared. To test this hypothesis, we started the "Chacobo Ethnobotany Project," training 10 indigenous Chacobo participants in ethnobotanical interview and plant collection techniques, in order to more fully document Chacobo knowledge and avoid the influence of foreign interviewers. RESULTS: Our study found 331 useful plant species in 241genera of 95 plant families, with leaves, roots and bark being the most commonly used plant parts The comprehensive documentation that these methods enabled completely nullified our initial hypothesis of knowledge loss. Traditional crop varieties are still widely grown and traditional knowledge is alive. Moreover, it is being actively recuperated in certain domains by the younger generation. Most Chacobo know, and can name, traditional utensils and tools, although only the older generation has still the skills to manufacture them. While many Chacobo still know the names and uses of medicinal species, the younger generation is however often unsure how to identify them. CONCLUSIONS: In this paper we illustrate the complexity of perspectives on knowledge at different ages, and the persistence of knowledge over almost a century. We found that traditional knowledge was only partially affected by the processes of exposure to a market economy, and that different knowledge domains experienced different trends as a result of these changes. Overall knowledge was widely distributed, and we did not observe a directional knowledge loss. We stress the importance to not directly conclude processes of knowledge loss, cultural erosion or acculturation when comparing the knowledge of different age groups. PMID- 29017577 TI - Elevated expression of Par3 promotes prostate cancer metastasis by forming a Par3/aPKC/KIBRA complex and inactivating the hippo pathway. AB - BACKGROUND: Prostate cancer (PCa) is one of the most frequent tumors and leading cause of cancer deaths among males worldwide. The majority of deaths are due to recurrence and subsequent development of the metastatic cancer. Although loss or dislocalization of polarity proteins has been implicated in embryogenesis deficiency and tumorigenesis, association of polarity protein expression levels with tumor metastasis remains unclear. METHODS: Bioinformatics, qRT-PCR, western blot and immunohistochemical (IHC) analyses were used to examine expression of Par3, a key component of polarity-associated partitioning defective (PAR) complex, in primary and metastatic clinical PCa samples. Loss-of-function and gain-of-function studies in vitro and in vivo were performed to determine the functions of Par3 during metastasis of PCa. Co-immunoprecipitation (co-IP), western blot, immunofluorescence (IF), chromatin immunoprecipitation (ChIP) and qRT-PCR analyses were conducted to investigate the underlying mechanism for the function of Par3 on PCa metastasis. RESULTS: In this study, we found that elevated expression of Par3 is positively associated with PCa metastasis. Knockdown of Par3 inhibits PCa cell migration and invasion in vitro and tumor metastasis in vivo, whereas overexpression of Par3 yields the opposite results. Mechanistically, Par3 suppresses phosphorylation of LATS to inactivate the Hippo pathway and enhances nuclear translocation of YAP by sequestrating KIBRA from the KIBRA/Merlin/FRMD6 complex and forming a Par3/aPKC/KIBRA complex. Stable knockdown of Par3 leads to restoration of the KIBRA/Merlin/FRMD6 complex and activation of the Hippo pathway, and then results in an inhibition on YAP nuclear translocation. In addition, in conjunction with the TEA domain (TEAD) transcription factor family, intranuclear YAP promotes the transcription of several pro-metastatic genes such as the matrix metalloproteinase (MMP) family, Zeb1, Snail1 and Twist1. Moreover, knockdown of Par3 downregulates expression of these pro-metastatic genes. CONCLUSIONS: Our findings indicate that elevated expression of Par3 promotes PCa metastasis via KIBRA sequestration-mediated inactivation of the Hippo pathway to upregulate expression of pro-metastatic genes. Downregulation of Par3 expression may serve as a potential treatment approach for PCa metastasis by activating the Hippo pathway. PMID- 29017579 TI - Surveillance of Ixodes ricinus ticks (Acari: Ixodidae) in Iceland. AB - BACKGROUND: Ixodes ricinus is a three-host tick, a principal vector of Borrelia burgdorferi (s.l.) and one of the main vectors of tick-borne encephalitis (TBE) virus. Iceland is located in the North Atlantic Ocean with subpolar oceanic climate. During the past 3-4 decades, average temperature has increased, supporting more favourable conditions for ticks. Reports of I. ricinus have increased in recent years. If these ticks were able to establish in a changing climate, Iceland may face new threats posed by tick-borne diseases. METHODS: Active field surveillance by tick flagging was conducted at 111 sites around Iceland from August 2015 to September 2016. Longworth mammal traps were used to trap Apodemus sylvaticus in southwestern and southern Iceland. Surveillance on tick importation by migratory birds was conducted in southeastern Iceland, using bird nets and a Heligoland trap. Vulpes lagopus carcasses from all regions of the country were inspected for ticks. In addition, existing and new passive surveillance data from two institutes have been merged and are presented. Continental probability of presence models were produced. Boosted Regression Trees spatial modelling methods and its predictions were assessed against reported presence. RESULTS: By field sampling 26 questing I. ricinus ticks (7 males, 3 females and 16 nymphs) were collected from vegetation from three locations in southern and southeastern Iceland. Four ticks were found on migratory birds at their arrival in May 2016. A total of 52 A. sylvaticus were live-trapped but no ticks were found nor on 315 V. lagopus carcasses. Passive surveillance data collected since 1976, reports further 214 I. ricinus ticks from 202 records, with an increase of submissions in recent years. The continental probability of presence model correctly predicts approximately 75% of the recorded presences, but fails to predict a fairly specific category of recorded presence in areas where the records are probably opportunistic and not likely to lead to establishment. CONCLUSIONS: To the best of our knowledge, this study represents the first finding of questing I. ricinus ticks in Iceland. The species could possibly be established locally in Iceland in low abundance, although no questing larvae have yet been detected to confirm established populations. Submitted tick records have increased recently, which may reflect an increase in exposure, or in interest in ticks. Furthermore, the amount of records on dogs, cats and humans indicate that ticks were acquired locally, presenting a local biting risk. Tick findings on migratory birds highlight a possible route of importation. Obtaining questing larvae is now a priority to confirm that I. ricinus populations are established in Iceland. Further surveys on wild mammals (e.g. Rangifer tarandus), livestock and migratory birds are recommended to better understand their role as potential hosts for I. ricinus. PMID- 29017578 TI - Family Integrated Care (FICare) in Level II Neonatal Intensive Care Units: study protocol for a cluster randomized controlled trial. AB - BACKGROUND: Every year, about 15 million of the world's infants are born preterm (before 37 weeks gestation). In Alberta, the preterm birth rate was 8.7% in 2015, the second highest among Canadian provinces. Approximately 20% of preterm infants are born before 32 weeks gestation (early preterm), and require care in a Level III neonatal intensive care unit (NICU); 80% are born moderate (32 weeks and zero days [320/7] to 336/7 weeks) and late preterm (340/7 to 366/7 weeks), and require care in a Level II NICU. Preterm birth and experiences in the NICU disrupt early parent-infant relationships and induce parental psychosocial distress. Family Integrated Care (FICare) shows promise as a model of care in Level III NICUs. The purpose of this study is to evaluate length of stay, infant and maternal clinical outcomes, and costs following adaptation and implementation of FICare in Level II NICUs. METHODS: We will conduct a pragmatic, cluster randomized controlled trial (cRCT) in ten Alberta Level II NICUs allocated to one of two groups: FICare or standard care. The FICare Alberta model involves three theoretically-based, standardized components: information sharing, parenting education, and family support. Our sample size of 181 mother-infant dyads per group is based on the primary outcome of NICU length of stay, 80% participation, and 80% retention at follow-up. Secondary outcomes (e.g., infant clinical outcomes and maternal psychosocial distress) will be assessed shortly after admission to NICU, at discharge and 2 months corrected age. We will conduct economic analysis from two perspectives: the public healthcare payer and society. To understand the utility, acceptability, and impact of FICare, qualitative interviews will be conducted with a subset of mothers at the 2-month follow-up, and with hospital administrators and healthcare providers near the end of the study. DISCUSSION: Results of this pragmatic cRCT of FICare in Alberta Level II NICUs will inform policy decisions by providing evidence about the clinical effectiveness and costs of FICare. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT02879799 . Registered on 27 May 2016. Protocol version: 9 June 2016; version 2. PMID- 29017580 TI - A retrospective analysis of the InterTan nail and proximal femoral nail anti rotation in the treatment of intertrochanteric fractures in elderly patients with osteoporosis: a minimum follow-up of 3 years. AB - BACKGROUND: The study aims to compare the long-term functional and radiographic outcomes of two devices for the treatment of primary intertrochanteric fractures (IFs, OTA 3.1A2.1-A2.3) in elderly patients with osteoporosis. METHODS: Between December 2010 and August 2014, 332 elderly osteoporosis patients with IFs (OTA 3.1A2.1-A2.3) fixed by an InterTAN nail (IT) or a proximal femoral nail anti rotation (PFNA) device were retrospectively evaluated. Follow-up occurred 1, 3, 6, and 12 months postoperatively and every year thereafter. Mortality was recorded. Patient-related functional and radiographic outcomes were compared. The primary endpoint was the long-term radiographic outcomes. The secondary endpoint was the long-term functional outcomes. RESULTS: A total of 283 patients (283 hips) with osteoporosis (IT, n = 144; PFNA, n = 139) were evaluated with a mean follow-up period of 38.8 months (range, 36-43 months). No between-group significant differences were noted in the patient demographics, operation variables, and postoperative Harris Hip Score. More radiographic complications were noted in terms of screw cut-out, femoral shaft fracture distal or around the tip of the main nail, and varus collapse of the femoral head in the PFNA group compared with that in the IT group (P < 0.05). CONCLUSION: For osteoporotic IFs (OTA 3.1A2.1-A2.3) in elderly patients, the use of IT aids in decreasing radiographic complications, but the between-group functional outcomes showed no significant difference. PMID- 29017582 TI - Differential susceptibility of bovine caruncular and trophoblast cell lines to infection with high and low virulence isolates of Neospora caninum. AB - BACKGROUND: Neospora caninum, one of the main causes of abortion in cattle, is very effective at crossing the placental barrier and placental damage is crucial in the pathogenesis of abortion. Bovine trophoblast and caruncular cell layers are key cellular components in the maternal-foetal interface in placentomes, playing a fundamental role in placental functionality. METHODS: We studied tachyzoite adhesion, invasion, proliferation and egress of high- (Nc-Spain7) and low- (Nc-Spain1H) virulence N. caninum isolates in established cultures of bovine caruncular epithelial (BCEC-1) and trophoblast (F3) cells. The parasite invasion rate (pInvR) and the cell infection rate (cInfR) were determined by immunostaining plaque assay at different time points and multiplicities of infection (MOIs), respectively. In addition, tachyzoite growth kinetics were investigated using real-time PCR (qPCR) analysis and immunostaining plaque assay at different times. RESULTS: Neospora caninum invaded and proliferated in both cell lines. The pInvR was higher in F3 compared to BCEC-1 cells for the Nc-Spain7 isolate (P < 0.05), and higher for the Nc-Spain7 than the Nc-Spain1H in F3 cells (P < 0.01). The cInfR was also higher in F3 cells than in BCEC-1 cells for both isolates (P < 0.0001), and the cInfR for the Nc-Spain7 isolate was higher than for the Nc-Spain1H isolate in both cell lines (P < 0.05). Tachyzoite growth kinetics showed tachyzoite exponential growth until egress at 58 hpi for both isolates in F3, whereas Nc-Spain1H showed a non-exponential growth pattern in BCEC-1. Asynchronous egress of both isolates was observed from 22 h post infection onwards in BCEC-1. In addition, the tachyzoite yield (TY58h) was higher in F3 than in BCEC-1 infected by both isolates (P < 0.0001), highlighting better replication abilities of both parasites in F3. Nc-Spain7 showed shorter doubling times and higher TY58h compared to Nc-Spain1H in F3 cells; adhesion, invasion and proliferation mechanisms were very similar for both isolates in BCEC-1. CONCLUSIONS: Our results indicate a highly similar behavior of high- and low virulence isolates in their interactions with maternal caruncular cells and suggest an important role of foetal trophoblasts in the pathogenesis of N. caninum infection. PMID- 29017583 TI - Mapping freshwater snails in north-western Angola: distribution, identity and molecular diversity of medically important taxa. AB - BACKGROUND: This study was designed to determine the distribution and identity of potential intermediate snail hosts of Schistosoma spp. in Bengo, Luanda, Kwanza Norte and Malanje Provinces in north-western Angola. This is an area where infection with Schistosoma haematobium, causing urogenital schistosomiasis, is common but little is yet known about transmission of the disease. Angola has had a varied past with regard to disease control and is revitalising efforts to combat neglected tropical diseases. METHODS: Snails were sampled from 60 water contact points. Specimens of the genera Bulinus, Biomphalaria or Lymnaea were screened for trematode infections by inducing cercarial shedding. Snails were initially identified using shell morphology; subsequently a cytochrome c oxidase subunit 1 (cox1) gene fragment was amplified from a subset of snails from each site, for molecular identification. Cercariae were captured onto FTA cards for molecular analysis. Specimens of Bulinus angolensis collected from the original locality of the type specimen have been characterised and comparisons made with snails collected in 1957 held at the Natural History Museum, London, UK. RESULTS: In total snails of nine genera were identified using morphological characteristics: Biomphalaria, Bulinus, Gyraulus, Lanistes, Lentorbis, Lymnaea, Melanoides, Physa and Succinea. Significant for schistosomiasis transmission, was the discovery of Bulinus globosus, B. canescens, B. angolensis, B. crystallinus and Biomphalaria salinarum in their type-localities and elsewhere. Bulinus globosus and B. angolensis occurred in two distinct geographical areas. The cox1 sequence for B. globosus differed markedly from those from specimens of this species collected from other countries. Bulinus angolensis is more closely related to B. globosus than originally documented and should be included in the B. africanus group. Schistosoma haematobium cercariae were recovered from B. globosus from two locations: Cabungo, Bengo (20 snails) and Calandula, Malanje (5 snails). Schistosoma haematobium cercariae were identified as group 1 cox1 corresponding to the type common throughout the African mainland. CONCLUSIONS: Various freshwater bodies in north-western Angola harbour potential intermediate snail hosts for urogenital schistosomiasis, highlighting the need to map the rest of the country to identify areas where transmission can occur and where control efforts should be targeted. The molecular phylogeny generated from the samples confirmed that considerable variation exists in B. globosus, which is the primary snail host for S. haematobium in many regions of Africa. PMID- 29017581 TI - Neoadjuvant treatment of pancreatic adenocarcinoma: a systematic review and meta analysis of 5520 patients. AB - BACKGROUND: Recent years have seen standardization of the anatomic definitions of pancreatic adenocarcinoma, and increasing utilization of neoadjuvant therapy (NAT). The aim of the current review was to summarize the evidence for NAT in pancreatic adenocarcinoma since 2009, when consensus criteria for resectable (R), borderline resectable (BR), and locally advanced (LA) disease were endorsed. METHODS: PubMed search was undertaken along with extensive backward search of the references of published articles to identify studies utilizing NAT for pancreatic adenocarcinoma. Abstracts from ASCO-GI 2014 and 2015 were also searched. RESULTS: A total of 96 studies including 5520 patients were included in the final quantitative synthesis. Pooled estimates revealed 36% grade >= 3 toxicities, 5% biliary complications, 21% hospitalization rate and low mortality (0%, range 0 16%) during NAT. The majority of patients (59%) had stable disease. On an intention-to-treat basis, R0-resection rates varied from 63% among R patients to 23% among LA patients. R0 rates were > 80% among all patients who were resected after NAT. Among R and BR patients who underwent resection after NAT, median OS was 30 and 27.4 months, respectively. CONCLUSIONS: The current study summarizes the recent literature for NAT in pancreatic adenocarcinoma and demonstrates improving outcomes after NAT compared to those historically associated with a surgery-first approach for pancreatic adenocarcinoma. PMID- 29017584 TI - American trypanosomiasis, or Chagas disease, in Panama: a chronological synopsis of ecological and epidemiological research. AB - American trypanosomiasis, or Chagas disease, is a growing public health problem in Panama, and further forest degradation due to human population growth is expected to worsen the situation. Most people infected with the parasite Trypanosoma cruzi are silently ill, and their life expectancy is severely compromised, which contributes to further deterioration of living conditions in endemic regions. Here, we review the outcomes of nearly 100 years of ecological and epidemiological investigation about Chagas disease in Panama, in an attempt to highlight progress, identify needs, and re-orient future efforts. Rhodnius pallescens and Triatoma dimidiata are both primary vectors of T. cruzi in Panama, but R. pallescens seems more efficient in human-altered forest ecosystems due to a greater degree of association with Attalea butyracea. In contrast, T. dimidiata transmits T. cruzi efficiently under more sylvatic conditions (e.g. settlements inside old-growth or secondary forest patches), where its populations reach considerable numbers irrespective of the absence of A. butyracea. A trend of increasing forest degradation, suburbanization, and development of tourism in Panama favoring the establishment of A. butyracea and other palm tree species (Acrocomia sp.) suggests that a colonist species like R. pallescens will continue to play a more prominent role in the transmission of T. cruzi than a forest specialist like T. dimidiata. However, studies about the taxonomic status and ecology of these vectors are still needed in Panama to address their transmission potential fully. The implementation of an active surveillance system and education programs could greatly minimize the risk of Chagas disease transmission in Panama, preventing fatal infections in children from endemic areas. PMID- 29017585 TI - PANSAID-PAracetamol and NSAID in combination: detailed statistical analysis plan for a randomised, blinded, parallel, four-group multicentre clinical trial. AB - BACKGROUND: Effective postoperative pain management is essential for the rehabilitation of the surgical patient. The PANSAID trial evaluates the analgesic effects and safety of the combination of paracetamol and ibuprofen. This paper describes in detail the statistical analysis plan for the primary publication to prevent outcome reporting bias and data-driven analysis results. METHODS/DESIGN: The PANSAID trial is a multicentre, randomised, controlled, parallel, four-group clinical trial comparing the beneficial and harmful effects of different doses and combinations of paracetamol and ibuprofen in patients having total hip arthroplastic surgery. Patients, caregivers, physicians, investigators, and statisticians are blinded to the intervention. The two co-primary outcomes are 24 h consumption of morphine and proportion of patients with one or more serious adverse events within 90 days after surgery. Secondary outcomes are pain scores during mobilisation and at rest at 6 and 24 h postoperatively, and the proportion of patients with one or more adverse events within 24 h postoperatively. DISCUSSION: PANSAID will provide a large trial with low risk of bias regarding benefits and harms of the combination of paracetamol and ibuprofen used in a perioperative setting. TRIAL REGISTRATION: ClinicalTrials.org identifier: NCT02571361 . Registered on 7 October 2015. PMID- 29017586 TI - Impact of prosthesis-patient mismatch after mitral valve replacement in rheumatic population: Does mitral position prosthesis-patient mismatch really exist? AB - BACKGROUND: Prosthesis-patient mismatch (PPM) is characterised by the effects of inadequate prosthesis size relative to body surface area (BSA).The purpose of this study was to determine the impact of PPM on late clinical outcomes after mitral valve replacement (MVR) in rheumatic population. METHODS: From 2000 to 2013, a total of 445 patients (mean age 54.2 +/- 11.7 years) underwent isolated MVR (+/-tricuspid annuloplasty) for rheumatic disease were investigated. Effective orifice area (EOA) was determined by the continuity equation and PPM was defined as indexed EOA (EOA/BSA) <= 1.2 cm2/m2. Clinical and echocardiographic follow-up (mean follow up 8.7 +/- 4.0 years) results were compared. RESULTS: 37% of patients (n = 165) had PPM. There were no significant differences in baseline and operative characteristics between patients with and without PPM except age and IEOA. A significant decrease in mean trans-valvular pressure gradient (MPG) over time following MVR, however the change of MPG showed no differences between groups (No PPM vs. PPM: 8.9 +/- 4.7 mmHg -> 3.6 +/- 1.2 mmHg vs. 8.7 +/- 4.5 mmHg -> 3.8 +/- 1.4 mmHg, p-value = 0.28). In all patients, there was a reduction of left atrium dimension (58.6 +/- 12.0 mm -> 53.2 +/- 12.0 mm vs. 57.9 +/- 8.9 mm -> 52.2 +/- 8.9 mm, p-value = 0.68) and left ventricular end diastolic diameter (49.9 +/- 5.7 mm -> 48.9 +/- 5.7 mm vs. 49.7 +/- 6.0 mm -> 48.3 +/- 5.0 mm, p = 0.24) without statistical significance. Freedom from TR progression rates at 3 and 5 years (99% vs.98%, 99% vs. 98%, p-value = 0.1), and overall survival rates at 3 and 5 years (97% vs. 96%, 94% vs. 94%, p-value = 0.7) were similar. CONCLUSION: This study shows that mitral PPM is not associated with atrial /ventricular remodeling and might not influence late clinical outcome including late TR progression, survival in rheumatic population. PMID- 29017587 TI - The perspective of gender on the Ebola virus using a risk management and population health framework: a scoping review. AB - BACKGROUND: In the three decades since the first reported case of Ebola virus, most known index cases have been consistently traced to the hunting of "bush meat", and women have consistently recorded relatively high fatality rates in most catastrophic outbreaks. This paper discusses Ebola-related risk factors, which constantly interact with cultural values, and provides an insight into the link between gender and the risk of contracting infectious diseases, using Ebola virus as an example within Africa. METHOD: A comprehensive search of the literature was conducted using the PubMed, Ovid Medline and Global Health CABI databases as well as CAB Abstracts, including gray literature. We used a descriptive and sex- and gender-based analysis to revisit previous studies on Ebola outbreaks since 1976 to 2014, and disaggregated the cases and fatality rates according to gender and the sources of known index cases based on available data. RESULTS: In total, approximately 1530 people died in all previous Ebola outbreaks from 1976 to 2012 compared with over 11,310 deaths from the 2014 outbreak. Women's increased exposure can be attributed to time spent at home and their responsibility for caring for the sick, while men's increased vulnerability to the virus can be attributed to their responsibility for caring for livestock and to time spent away from home, as most known sources of the index cases have been infected in the process of hunting. We present a conceptual model of a circle of interacting risk factors for Ebola in the African context. CONCLUSION: There is currently no evidence related to biological differences in female or male sex that increases Ebola virus transmission and vulnerability; rather, there are differences in the level of exposure between men and women. Gender is therefore an important risk factor to consider in the design of health programs. Building the capacity for effective risk communication is a worthwhile investment in public and global health for future emergency responses. PMID- 29017588 TI - Morbidity and mortality of children aged 2-59 months admitted in the Tanzania Lake Zone's public hospitals: a cross-sectional study. AB - BACKGROUND: There is a growing concern about child mortality especially in developing countries. The Government of Tanzania and non-governmental organizations are fighting against diseases like malaria, anaemia, diarrhoea and pneumonia that contribute extensively to child mortality. This was a hospital based, retrospective cohort study involving 1130 under-fives (excluding neonates) being either discharged from or died in public hospitals of the Lake Zone in Tanzania. We extracted information on symptoms and signs at admission, major diagnoses and causes of death from the medical records. We applied binary logistic regression models to assess risk factors associated with in-patient under-five death. RESULTS: The major leading morbidities include malaria (49%), anemia (37%), diarrhea (27%), pneumonia (22%) and severe acute malnutrition (21%). We found the case fatality of 74 deaths per 1000 under-five admissions. Major underlying causes of deaths were severe anaemia, severe malaria and severe pneumonia. Factors associated with in-patient death were female sex (AOR 1.7; 95% CI 1.0, 2.8) and the odds significantly decreased with increasing level of maternal education. CONCLUSIONS: Malaria remains a leading cause of admissions in hospitals among under-fives. Although the case fatality among children aged between 2 and 59 months admitted in hospitals in Lake Zone is decreasing, efforts are needed to address major causes of deaths (severe anaemia, severe malaria and severe pneumonia). PMID- 29017589 TI - Randomized trial of telephone versus in-person delivery of a brief psychosocial intervention in post-stroke depression. AB - BACKGROUND: A psychosocial behavioral intervention delivered in-person by advanced practice nurses has been shown effective in substantially reducing post stroke depression (PSD). This follow-up trial compared the effectiveness of a shortened intervention delivered by either telephone or in-person to usual care. To our knowledge, this is the first of current behavioral therapy trials to expand the protocol in a new clinical sample. 100 people with Geriatric Depression Scores >= 11 were randomized within 4 months of stroke to usual care (N = 28), telephone intervention (N = 37), or in-person intervention (N = 35). Primary outcome was response [percent reduction in the Hamilton Depression Rating Scale (HDRS)] and remission (HDRS score < 10) at 8 weeks and 12 months post treatment. RESULTS: Intervention groups were combined for the primary analysis (pre-planned). The mean response in HDRS scores was 39% reduction for the combined intervention group (40% in-person; 38% telephone groups) versus 33% for the usual care group at 8 weeks (p = 0.3). Remission occurred in 37% in the combined intervention groups at 8 weeks versus 27% in the control group (p = 0.3) and 44% intervention versus 36% control at 12 months (p = 0.5). While favouring the intervention, these differences were not statistically significant. CONCLUSIONS: A brief psychosocial intervention for PSD delivered by telephone or in-person did not reduce depression significantly more than usual care. However, the comparable effectiveness of telephone and in-person follow-up for treatment of depression found is important given greater accessibility by telephone and mandated post-hospital follow-up for comprehensive stroke centers. Clinical Trial Registration URL: https://register.clinicaltrials.gov , unique identifier: NCT01133106, Registered 5/26/2010. PMID- 29017591 TI - Residual disease activity and treatment adjustments in psoriatic arthritis in current clinical practice. AB - BACKGROUND: With expanding therapeutic possibilities for treatment of psoriatic arthritis (PsA) it will be increasingly important to determine residual disease and define when to adjust treatment. The rationale behind treatment decisions in current daily clinical practice and the relationship with residual disease activity has not been investigated. The aim of this study was to assess current clinical practice on defining residual disease and subsequent treatment decisions made in PsA patients. METHODS: This cross-sectional study scored disease activity and treatment decisions prospectively in 142 consecutive PsA patients visiting the outpatient clinic for routine follow up. Disease activity parameters were scored by patient and the treating rheumatologist; the rheumatologist additionally registered his opinion on the presence of remaining disease activity despite current treatment (further mentioned as remaining disease) and subsequent treatment decisions. RESULTS: Two thirds (90/142) of patients had remaining disease activity according to the treating rheumatologist. Almost half (46%) of these patients had moderate to high disease activity according to the clinical Disease Activity Index for Psoriatic Arthritis (cDAPSA). Residual disease activity was determined by joint disease and pain rather than by active psoriasis. Demographic and clinical features were similar between groups with or without residual disease. Among patients with remaining disease activity, 74% were treated with either a conventional synthetic disease-modifying anti rheumatic drug (csDMARD) only or a first TNF-inhibiting biological agent, suggesting opportunities for treatment modification. However, treatment adjustment was initiated in only 21 (23%) of the 90 patients with residual disease. When comparing patients with remaining disease activity with and without treatment adjustment, we found no differences in objective disease activity measures, such as joint counts and patient scores. These data suggest that treatment is not adjusted in a large majority of patients with residual disease activity, although options for treatment changes are available. CONCLUSIONS: Remaining disease activity is present in almost two thirds of patients with PsA when scored by the treating rheumatologist, but triggers treatment adjustment in only a minority. Further research to understand why disease activity does not lead to treatment adjustment is required to enable implementation of treatment strategies in clinical practice. PMID- 29017590 TI - Review of the evolution of insecticide resistance in main malaria vectors in Cameroon from 1990 to 2017. AB - BACKGROUND: Malaria remains a major public health threat in Cameroon and disease prevention is facing strong challenges due to the rapid expansion of insecticide resistance in vector populations. The present review presents an overview of published data on insecticide resistance in the main malaria vectors in Cameroon to assist in the elaboration of future and sustainable resistance management strategies. METHODS: A systematic search on mosquito susceptibility to insecticides and insecticide resistance in malaria vectors in Cameroon was conducted using online bibliographic databases including PubMed, Google and Google Scholar. From each peer-reviewed paper, information on the year of the study, mosquito species, susceptibility levels, location, insecticides, data source and resistance mechanisms were extracted and inserted in a Microsoft Excel datasheet. The data collected were then analysed for assessing insecticide resistance evolution. RESULTS: Thirty-three scientific publications were selected for the analysis. The rapid evolution of insecticide resistance across the country was reported from 2000 onward. Insecticide resistance was highly prevalent in both An. gambiae (s.l.) and An. funestus. DDT, permethrin, deltamethrin and bendiocarb appeared as the most affected compounds by resistance. From 2000 to 2017 a steady increase in the prevalence of kdr allele frequency was noted in almost all sites in An. gambiae (s.l.), with the L1014F kdr allele being the most prevalent. Several detoxification genes (particularly P450 monooxygenase) were associated with DDT, pyrethroids and bendiocarb resistance. In An. funestus, resistance to DDT and pyrethroids was mainly attributed to the 119F-GSTe2 metabolic resistance marker and over-expression of P450 genes whereas the 296S-RDL mutation was detected in dieldrin-resistant An. funestus. CONCLUSIONS: The review provides an update of insecticide resistance status in malaria vector populations in Cameroon and stresses the need for further actions to reinforce malaria control strategies in the coming years. PMID- 29017592 TI - Omentin-1 effects on mesenchymal stem cells: proliferation, apoptosis, and angiogenesis in vitro. AB - BACKGROUND: Mesenchymal stem cells (MSCs) are emerging as an extremely promising therapeutic agent for tissue repair. However, limitations exist such as the low numbers of MSCs obtained from donors, and the poor survival and function of donor cells. Omentin-1, a new fat depot-specific secretory adipokine, exerts proproliferation, prosurvival, and proangiogenic functions in certain cells via an Akt-dependent mechanism; however, little is known about the influence of omentin-1 on MSCs. METHODS: MSCs were isolated from 60-80 g donor rats. Cell proliferation was assessed with CCK-8 and EdU assay. Cell cycle, apoptosis ratio, reactive oxygen species concentration, and mitochondrial membrane potential were detected by flow cytometry. Hoechst 33342 dye was used to assess morphological changes of apoptosis. Expression levels of Akt, FoxO3a, GSK-3beta, and apoptosis- and cell cycle-associated proteins were detected by Western blotting. Tube formation assay was used to test the angiogenesis role of conditioned medium from MSCs in vitro. The cytokine secretion was assessed by ELISA. RESULTS: After treatment with omentin-1 (100-800 ng/ml), MSCs displayed a higher proliferative capacity with an increasing number of cells in the S and G2 phase of the cell cycle. Moreover, omentin-1 preconditioning for 1 h could protect MSCs against H2O2-induced apoptosis in a concentration-dependent manner. Furthermore, omentin 1 pretreatment reduced the excessive reactive oxygen species. Western blots revealed that increased Bcl-2 and decreased Bax appeared in MSCs after omentin-1 incubation, which inhibited the mitochondrial apoptosis pathways with evidence showing inhibition of caspase-3 cleavage and preservation of mitochondrial membrane potential. Omentin-1 could enhance angiogenic growth factor secretion and elevate the ability of MSCs to stimulate tube formation by human umbilical vein endothelial cells (HUVECs). Furthermore, omentin-1 enhanced Akt phosphorylation; however, blockade of the PI3K/Akt pathway with an inhibitor, LY294002 (20 MUM), suppressed the above beneficial effects of omentin-1. CONCLUSION: Omentin-1 can exert beneficial effects on MSCs by promoting proliferation, inhibiting apoptosis, increasing secretion of angiogenic cytokines, and enhancing the ability for stimulating tube formation by HUVECs via the PI3K/Akt signaling pathway. Thus, omentin-1 may be considered a candidate for optimizing MSC-based cell therapy. PMID- 29017596 TI - Providers and patients face-to-face: what is the time? AB - BACKGROUND: The frequency of visiting primary care providers and the duration of those visits varies substantially by patient demographics and across different developed countries. The significance of a cumulative measure of this time spent with providers in face-to-face visits is not well understood. COMMENTARY: In a recent IJHPR issue Nathan and co-authors have suggested a new metric for capturing the cumulative time spent annually in face-to-face encounters between providers and patients. The annual accumulated duration of time (AADC) of visits was constructed using a 2% random sample of adult patients from the Clalit health plan in Israel for the year 2012. The authors calculated the mean AADC to be 65.7 min with average visit durations of 7.6 min. A presumption underlying this analysis is that the metric captures the magnitude of activity devoted to eliciting relevant clinical information, synthesizing the significance of those data, and communicating the importance of that thinking to patients so that they might make informed decisions regarding their health care. But measuring the time spent with a provider is but a surrogate marker of these activities and the lack of correlation between time spent with providers and health outcomes suggests that as a surrogate it may not be that robust a measure. It is possible that what is being captured through this metric is the influence of economic incentives faced by individual practitioners and the structure of health care financing in different societies rather than a portrait either of clinical complexity or quality of care. CONCLUSIONS: The advent of this new measure of cumulative provider time with patients signals the importance of accurate measurement as a vital first step in understanding the meaning of data but reminds us of an obligation to inquire beyond the measurements themselves to arrive at appropriate policy-relevant conclusions. PMID- 29017594 TI - Depression in medical students: insights from a longitudinal study. AB - BACKGROUND: Factors associated with depression of medical students are poorly understood. The purpose of this study is to determine the prevalence of depression in medical students, its change during the course, if depression persists for affected students, what are the factors associated with depression and how these factors change over time. METHODS: A prospective, longitudinal observational study was conducted at the Medical School of the University of Minho, Portugal, between academic years 2009-2010 to 2012-2013. We included students who maintained their participation by annually completing a questionnaire including Beck Depression Inventory (BDI). Anxiety and burnout were assessed using the State Trait Anxiety Inventory and Maslach Burnout Inventory. Surveys on socio-demographic variables were applied to evaluate potential predictors, personal and academic characteristics and perceived difficulties. ANOVA with multiple comparisons were used to compare means of BDI score. The medical students were organized into subgroups by K-means cluster analyses. ANOVA mixed-design repeated measurement was performed to assess a possible interaction between variables associated with depression. RESULTS: The response rate was 84, 92, 88 and 81% for academic years 2009-2010, 2010-2011,2011-2012 and 2012/2013, respectively. Two hundred thirty-eight medical students were evaluated longitudinally. For depression the prevalence ranged from 21.5 to 12.7% (academic years 2009/2010 and 2012/2013). BDI scores decreased during medical school. 19.7% of students recorded sustained high BDI over time. These students had high levels of trait-anxiety and choose medicine for anticipated income and prestige, reported more relationship issues, cynicism, and decreased satisfaction with social activities. Students with high BDI scores at initial evaluation with low levels of trait-anxiety and a primary interest in medicine as a career tended to improve their mood and reported reduced burnout, low perceived learning problems and increased satisfaction with social activities at last evaluation. No difference was detected between men and women in the median BDI score over time. CONCLUSIONS: Our findings suggest that personal factors (anxiety traits, medicine choice factors, relationship patterns and academic burnout) are relevant for persistence of high levels of BDI during medical training. Medical schools need to identity students who experience depression and support then, as early as possible, particularly when depression has been present over time. PMID- 29017593 TI - Incremental value of biomarker combinations to predict progression of mild cognitive impairment to Alzheimer's dementia. AB - BACKGROUND: The progression of mild cognitive impairment (MCI) to Alzheimer's disease (AD) dementia can be predicted by cognitive, neuroimaging, and cerebrospinal fluid (CSF) markers. Since most biomarkers reveal complementary information, a combination of biomarkers may increase the predictive power. We investigated which combination of the Mini-Mental State Examination (MMSE), Clinical Dementia Rating (CDR)-sum-of-boxes, the word list delayed free recall from the Consortium to Establish a Registry of Dementia (CERAD) test battery, hippocampal volume (HCV), amyloid-beta1-42 (Abeta42), amyloid-beta1-40 (Abeta40) levels, the ratio of Abeta42/Abeta40, phosphorylated tau, and total tau (t-Tau) levels in the CSF best predicted a short-term conversion from MCI to AD dementia. METHODS: We used 115 complete datasets from MCI patients of the "Dementia Competence Network", a German multicenter cohort study with annual follow-up up to 3 years. MCI was broadly defined to include amnestic and nonamnestic syndromes. Variables known to predict progression in MCI patients were selected a priori. Nine individual predictors were compared by receiver operating characteristic (ROC) curve analysis. ROC curves of the five best two-, three-, and four-parameter combinations were analyzed for significant superiority by a bootstrapping wrapper around a support vector machine with linear kernel. The incremental value of combinations was tested for statistical significance by comparing the specificities of the different classifiers at a given sensitivity of 85%. RESULTS: Out of 115 subjects, 28 (24.3%) with MCI progressed to AD dementia within a mean follow-up period of 25.5 months. At baseline, MCI-AD patients were no different from stable MCI in age and gender distribution, but had lower educational attainment. All single biomarkers were significantly different between the two groups at baseline. ROC curves of the individual predictors gave areas under the curve (AUC) between 0.66 and 0.77, and all single predictors were statistically superior to Abeta40. The AUC of the two-parameter combinations ranged from 0.77 to 0.81. The three-parameter combinations ranged from AUC 0.80-0.83, and the four-parameter combination from AUC 0.81-0.82. None of the predictor combinations was significantly superior to the two best single predictors (HCV and t-Tau). When maximizing the AUC differences by fixing sensitivity at 85%, the two- to four-parameter combinations were superior to HCV alone. CONCLUSION: A combination of two biomarkers of neurodegeneration (e.g., HCV and t-Tau) is not superior over the single parameters in identifying patients with MCI who are most likely to progress to AD dementia, although there is a gradual increase in the statistical measures across increasing biomarker combinations. This may have implications for clinical diagnosis and for selecting subjects for participation in clinical trials. PMID- 29017595 TI - A series of N-of-1 trials to assess the therapeutic interchangeability of two enalapril formulations in the treatment of hypertension in Addis Ababa, Ethiopia: study protocol for a randomized controlled trial. AB - BACKGROUND: Hypertension is one of the leading causes of morbidity and mortality in Ethiopia. Treatment usually involves lifelong medication use. Enalapril is a common drug for the treatment of hypertension in Ethiopia. However, the drug is expensive and, therefore, there is limited capacity for people to afford the treatment. Locally produced Enalapril is a cost-effective solution to treat the disease. However, as local medicines regulation does not include bioequivalence tests on locally produced drugs, physicians and patients need assurance about the effectiveness and safety of local generics. Evidence on therapeutic equivalence is needed on these untested local drugs. METHODS: This is a hospital-based, randomized, partially blinded, three-cycle crossover trial in single patients, comparing a locally produced version of enalapril with enalapril imported from Europe. Patients involved in this trial are not blinded, as there is no local facility to produce relatively small numbers of placebos or encapsulated drugs. To ensure blinding of study investigators and data analysts, study medications are prepared by an independent pharmacy unit using opaque medication packaging. The importance of maintaining blinding is also part of patient pre-trial education. Each N-of-1 trial will consist of three successive 14-day treatment pairs, each pair comprising 7 days of 5-20 mg local and 7 days of 5-20 mg imported enalapril taken once daily in the morning. The primary outcome will be the average difference in systolic blood pressure as measured by home blood pressure measurements. DISCUSSION: The number of locally produced products, such as enalapril, being approved without proof of bioequivalence is dramatically increasing. By bridging the information gap on bioequivalence, the trial will give rigorous evidence on therapeutic equivalence of locally produced enalapril in the treatment of hypertension. If there is no difference, the hypothesized result, then patients can take the local medicine with confidence. This trial will also will determine whether aggregated N-of-1 studies are feasible to evaluate untested generic drugs in resource-limited countries where bioequivalence testing centers are unavailable. TRIAL REGISTRATION NUMBER: Australian and New Zealand Clinical Trial Registry, ID: ACTRN12616001088437p . Registered on 12 August 2016. PMID- 29017597 TI - Estimating the economic and social consequences for patients diagnosed with human African trypanosomiasis in Muchinga, Lusaka and Eastern Provinces of Zambia (2004 2014). AB - BACKGROUND: Acute human African trypanosomiasis (rHAT) caused by Trypanosoma brucei rhodesiense is associated with high mortality and is fatal if left untreated. Only a few studies have examined the psychological, social and economic impacts of rHAT. In this study, mixed qualitative and quantitative research methods were used to evaluate the socio-economic impacts of rHAT in Mambwe, Rufunsa, Mpika and Chama Districts of Zambia. METHODS: Individuals diagnosed with rHAT from 2004 to 2014 were traced using hospital records and discussions with communities. Either they, or their families, were interviewed using a structured questionnaire and focus group discussions were conducted with affected communities. The burden of the disease was investigated using disability adjusted life years (DALYs), with and without discounting and age-weighting. The impact of long-term disabilities on the rHAT burden was also investigated. RESULTS: Sixty four cases were identified in the study. The majority were identified in second stage, and the mortality rate was high (12.5%). The total number of DALYs was 285 without discounting or age-weighting. When long-term disabilities were included this estimate increased by 50% to 462. The proportion of years lived with disability (YLD) increased from 6.4% to 37% of the undiscounted and un-age-weighted DALY total. When a more active surveillance method was applied in 2013-2014 the cases identified increased dramatically, suggesting a high level of under-reporting. Similarly, the proportion of females increased substantially, indicating that passive surveillance may be especially failing this group. An average of 4.9 months of productive time was lost per patient as a consequence of infection. The health consequences included pain, amnesia and physical disability. The social consequences included stigma, dropping out of education, loss of friends and self-esteem. Results obtained from focus group discussions revealed misconceptions among community members which could be attributed to lack of knowledge about rHAT. CONCLUSIONS: The social and economic impact of rHAT on rural households and communities is substantial. Improved surveillance and strengthening of local medical services are needed for early and accurate diagnosis. Disease prevention should be prioritised in communities at risk of rHAT, and interventions put in place to prevent zoonotic disease spill over from domestic animals and wildlife. Supportive measures to mitigate the long-term effects of disability due to rHAT are needed. PMID- 29017598 TI - Behcet's disease risk association fine-mapped on the IL23R-IL12RB2 intergenic region in Koreans. AB - BACKGROUND: Behcet's disease (BD) susceptibility had been associated with single nucleotide polymorphisms (SNPs) in IL23R-IL12RB2, IL10, STAT4, or ERAP1 locus in Japanese, Turkish, Chinese, and other populations, but not in a Korean genome wide association study (GWAS). We aimed to fine-map BD risk association of these four loci using extensive imputation and additional genotyping for replication. METHODS: In the discovery phase, 369 patients with BD enrolled in the previous Korean GWAS and 2000 controls retrieved from a population-based cohort of healthy Koreans were imputed for their genotypes of all SNPs in the four loci using the Asian data of the 1000 Genomes Project as reference. For genotype imputation of ERAP1 SNPs, the adjacent ERAP2 SNPs were also covered. For the 10 most significantly associated SNPs (8 imputed and 2 GWAS-genotyped), an additional 84 patients with BD and 283 healthy controls were genotyped for replication. The results from the discovery and replication phases were pooled for meta-analysis using the Mantel-Haenszel test to estimate the odds ratio (OR) and 95% confidence interval (CI). RESULTS: An IL23R-IL12RB2 intergenic SNP rs1495965 was significantly associated with BD risk (OR (95% CI) = 1.5 (1.3, 1.7), P = 2.5 * 10 7) in the pooled meta-analysis of the discovery (1.4 (1.2, 1.7), P = 4.9 * 10-7) and replication (1.9 (1.3, 2.6), P = 6.0 * 10-4) phases. BD risk association was fine-mapped on the intergenic region rather than the two flanking genes, as rs1495966 and rs4655535, almost perfectly correlated with rs1495965 (r 2 = 0.99), were also located in the same intergenic region. Consistent with previous reports, the P values tended to be lower within IL23R than IL12RB2. On the other hand, several IL10 SNPs were suggested for association in the discovery phase but all failed in the replication phase. No SNP in ERAP1-ERAP2 and STAT4 was suggested even in the discovery phase. CONCLUSIONS: BD susceptibility association was fine-mapped on the intergenic region between IL23R and IL12RB2 as marked by three correlated SNPs, rs1495965, rs1495966, and rs4655535. PMID- 29017599 TI - Detection and phylogenetic analyses of spike genes in porcine epidemic diarrhea virus strains circulating in China in 2016-2017. AB - BACKGROUND: Large-scale outbreaks of porcine epidemic diarrhea (PED) have re emerged in China in recent years. However, little is known about the genetic diversity and molecular epidemiology of field strains of PED virus (PEDV) in China in 2016-2017. To address this issue, in this study, 116 diarrhea samples were collected from pig farms in 6 Chinese provinces in 2016-2017 and were detected using PCR for main porcine enteric pathogens, including PEDV, porcine deltacoronavirus (PDCoV), porcine transmissible gastroenteritis virus (TGEV) and porcine kobuvirus (PKV). In addition, the complete S genes from 11 representative PEDV strains were sequenced and analyzed. RESULTS: PCR detection showed that 52.6% (61/116) of these samples were positive for PEDV. Furthermore, sequencing results for the spike (S) genes from 11 of the epidemic PEDV strains showed 93 94% nucleotide identity and 92-93% amino acid identity with the classical CV777 strain. Compared with the CV777 vaccine strain, these strains had an insertion (A133), a deletion (G155), and a continuous 4-amino-acid insertion (56NNTN59) in the S1 region. Phylogenetic analysis based on the S gene indicated that the 11 assessed PEDV strains were genetically diverse and clustered into the G2 group. These results demonstrate that the epidemic strains of PEDV in China in 2016-2017 are mainly virulent strains that belong to the G2 group and genetically differ from the vaccine strain. Importantly, this is the first report that the samples collected in Hainan Province were positive for PEDV (59.2%, 25/42). CONCLUSIONS: To our knowledge, this article presents the first report of a virulent PEDV strain isolated from Hainan Island, China. The results of this study will contribute to the understanding of the epidemiology and genetic characteristics of PEDV in China. PMID- 29017600 TI - Ions doped melanin nanoparticle as a multiple imaging agent. AB - BACKGROUND: Multimodal nanomaterials are useful for providing enhanced diagnostic information simultaneously for a variety of in vivo imaging methods. According to our research findings, these multimodal nanomaterials offer promising applications for cancer therapy. RESULTS: Melanin nanoparticles can be used as a platform imaging material and they can be simply produced by complexation with various imaging active ions. They are capable of specifically targeting epidermal growth factor receptor (EGFR)-expressing cancer cells by being anchored with a specific antibody. Ion-doped melanin nanoparticles were found to have high bioavailability with long-term stability in solution, without any cytotoxicity in both in vitro and in vivo systems. CONCLUSION: By combining different imaging modalities with melanin particles, we can use the complexes to obtain faster diagnoses by computed tomography deep-body imaging and greater detailed pathological diagnostic information by magnetic resonance imaging. The ion-doped melanin nanoparticles also have applications for radio-diagnostic treatment and radio imaging-guided surgery, warranting further proof of concept experimental. PMID- 29017601 TI - Mass-like Dieulafoy's lesion associated with advanced gastric cancer at the antrum of stomach: a case report and literature review. AB - BACKGROUND: Dieulafoy's lesion, also known as a caliber-persistent artery, is a shallow, small, and rare lesion that occurs along the lesser curvature of proximal stomach. It is rare for a Dieulafoy's lesion to present as a mass-like lesion that coexists with gastric cancer. To our best knowledge, we report the first case and histopathological pictures of a mass-like Dieulafoy's lesion coexisting with advanced gastric cancer in the antrum of the stomach. CASE PRESENTATION: A 57-year-old female presented with a 6-month history of intermittent epigastric dull pain and dyspepsia. Subsequent upper gastrointestinal endoscopy revealed a friable mass that was located between the distal antrum and the pyloric ring. Biopsy revealed it to be an intestinal type adenocarcinoma. Subtotal gastrectomy was performed after neoadjuvant chemotherapy. Grossly, a large irregular plaque-like tumor lesion was noted at the anterior wall of the distal antrum and pylorus ring near the lesser curvature, measuring 5.6 * 4.8 * 1.0 cm. Histopathological examination of the resected stomach revealed that the plaque-like lesion largely consisted of numerous abnormally large-caliber and tortuous arteries in the submucosa. The increased fibrosis of the submucosa resulted in the formation of elevated plaque. The intestinal type adenocarcinoma was noted to be largely confined to the mucosa layer, with focal submucosal and muscular propria involvement. The patient was discharged one week after the subtotal gastrectomy, and she was alive and well 17 months after discharge, with no major complications. CONCLUSION: This is the first case of a mass-like Dieulafoy's lesion coexisting with advanced gastric cancer at the distal antrum area. This case highlights the possibility of life threatening gastric bleeding after mucosal resection or biopsy that could be encountered by endoscopists. PMID- 29017602 TI - Phylogenetic analyses reveal that Schellackia parasites (Apicomplexa) detected in American lizards are closely related to the genus Lankesterella: is the range of Schellackia restricted to the Old World? AB - BACKGROUND: Species of Schellackia Reichenow, 1919 have been described from the blood of reptiles distributed worldwide. Recently, Schellackia spp. detected in European and Asian lizards have been molecularly characterised. However, parasites detected in American lizard hosts remain uncharacterised. Thus, phylogenetic affinities between the Old and New World parasite species are unknown. METHODS: In the present study, we characterised morphologically and molecularly the hemococcidian parasites (sporozoites) that infect three lizard hosts from North America and two from South America. RESULTS: In total, we generated 12 new 18S rRNA gene sequences of hemococcidian parasites infecting New World lizard hosts. By the microscopic examination of the smears we identified Schellackia golvani Rogier & Landau, 1975 (ex Anolis carolinensis Voigt) and Schellackia occidentalis Bonorris & Ball, 1955 (ex Uta stansburiana Baird & Girard and Sceloporus occidentalis Baird & Girard) in some samples, but the phylogenetic analysis indicated that all 18S rDNA sequences are distant from Schellackia species found in Old World lizards. In fact, the hemococcidian parasites detected in the New World lizards (including S. occidentalis and S. golvani) were closely related to the genus Lankesterella Labbe, 1899. Consequently, we suggest these two species to be included within the genus Lankesterella. CONCLUSIONS: Life history traits of hemococcidian parasites such as the type of host blood cells infected, host species or number of refractile bodies are not valid diagnostic characteristics to differentiate the parasites between the genera Schellackia and Lankesterella. Indeed, lankesterellid parasites with a different number of refractile bodies had a close phylogenetic origin. Based on the phylogenetic results we provide a systematic revision of the North American hemococcidians. Our recommendation is to include the species formerly described in the genus Schellackia that infect American lizards into Lankesterella (Lankesterellidae) as Lankesterella golvani (Rogier & Landau, 1975) n. comb and L. occidentalis (Bonorris & Ball, 1955) n. comb. PMID- 29017603 TI - Longitudinal study of influenza A virus circulation in a nursery swine barn. AB - Commercial production of swine often involves raising animals in large groups through the use of multi-stage production systems. In such systems, pigs can experience different degrees of contact with animals of the same or different ages. Population size and degree of contact can greatly influence transmission of endemic pathogens, including influenza A virus (IAV). IAV can display high genetic variability, which can further complicate population-level patterns. Yet, the IAV transmission in large multi-site swine production systems has not been well studied. The objectives of this study were to describe the IAV circulation in a multi-source nursery facility and identify factors associated with infection in nursery pigs. Pigs from five sow herds were mixed in one all-in/all-out nursery barn, with 81 and 75 pigs included in two longitudinal studies. Virus isolation was performed in Madin-Darby canine kidney cells and serology was performed using hemagglutination inhibition assays. Risk factor analysis for virological positivity was conducted using logistic regression and stratified Cox's regression for recurrent events. In Study 1, at ~30 days post-weaning, 100% of pigs were positive, with 43.2% of pigs being positive recurrently over the entire study period. In study 2, 48% of pigs were positive at the peak of the outbreak, and 10.7% were positive recurrently over the entire study period. The results suggest that IAV can circulate during the nursery phase in an endemic pattern and that the likelihood of recurrent infections was associated in a non linear way with the level of heterologous (within-subtype) maternal immunity (p < 0.05). High within-pen intracluster correlation coefficients (> 0.75) were also observed for the majority of sampling times suggesting that pen-level factors played a role in infection dynamics in this study. PMID- 29017604 TI - IL-17-differentiated macrophages secrete pro-inflammatory cytokines in response to oxidized low-density lipoprotein. AB - BACKGROUND: Cytokines and macrophages play a central role in the development of atherosclerosis. Interleukin (IL)-17 is a pro-inflammatory cytokine with differential effects on innate immune cells. We investigated the effects of IL-17 on macrophage differentiation and foam cell formation and activation in response to oxidized low-density lipoprotein (oxLDL). METHODS: Human monocytes were treated with IL-17 to induce macrophage differentiation. As controls, human monocytes were differentiated into M1 macrophages (M1) or M2 macrophages (M2). Subsequently, we analyzed the expression levels of markers such as CD80, CD36 and Toll-like receptors (TLRs) as well as foam cell formation and cytokines in M1, M2 and macrophages differentiated with IL-17 with or without oxLDL. RESULTS: The expression of M1 or M2 markers or cytokines was not induced in macrophages differentiated with IL-17. Macrophages differentiated with IL-17 formed few foam cells, with an average proportion of 20%, and expressed 3 times as much TLR2 and 3.8 times as much TLR4 as M0 macrophages. Additionally, macrophages differentiated with IL-17 acquired inflammatory capacity in response to oxLDL through the expression of specific markers, such as CD80, which increased 18 times compared with macrophages differentiated with IL-17 alone, and secreted 1.3 times less tumor necrosis factor (TNF)-alpha than M1. Additionally, oxLDL increased the levels of CD80, CD86 and IL-6 by 5.7, 2.8 and 1.4 times in M1 compared with M1 in the absence of oxLDL. In M2, oxLDL induced increases in the secretion of IL-6 and TNF-alpha that were 1.9 times and 1.2 times smaller, respectively, than those observed in M1. CONCLUSION: Our study demonstrates that differentiation of macrophages with IL-17 does not induce the expression of markers or cytokines characteristic of M1 or M2 and these macrophages form few foam cells; however, the expression of TLR is increased. Moreover, these macrophages acquire the inflammatory capacity as evidenced by the expression of costimulatory molecules and secretion of pro-inflammatory cytokines in response to oxLDL. These findings suggest that the activation of macrophages differentiated with IL-17 by oxLDL contributes to the inflammatory process of atherosclerosis. PMID- 29017605 TI - COllaborative Shared care to IMprove Psychosis Outcome (COSIMPO): study protocol for a randomized controlled trial. AB - BACKGROUND: Psychotic disorders are a group of severe mental disorders that cause considerable disability to sufferers and a high level of burden to families. In many low- and middle-income countries (LMIC), traditional and faith healers are the main providers of care to affected persons. Even though frequently canvassed as desirable for improved care delivery, collaboration between these complementary alternative health providers (CAPs) and conventional health providers has yet to be rigorously tested for feasibility and effectiveness on patient outcomes. METHODS/DESIGN: COSIMPO is a single-blind, cluster randomized controlled trial (RCT) being conducted in Nigeria and Ghana to compare the effectiveness of a collaborative shared care (CSC) intervention program implemented by CAPs and primary health care providers (PHCPs) with care as usual (CAU) at improving the outcome of patients with psychosis. The study is designed to test the hypotheses that patients receiving CSC will have a better clinical outcome and experience fewer harmful treatment practices from the CAPs than patients receiving CAU at 6 months after study entry. An estimated sample of 296 participants will be recruited from across 51 clusters, with a cluster consisting of a primary care clinic and its neighboring CAP facilities. CSC is a manualized intervention package consisting of regular and scheduled visits of PHCPs to CAP facilities to assist with the management of trial participants. Assistance includes the administration of antipsychotic medications, management of comorbid physical condition, assisting the CAP to avoid harmful treatment practices, and engaging with CAPs, caregivers and participants in planning discharge and rehabilitation. The primary outcome, assessed at 6 months following trial entry, is improvement on the Positive and Negative Symptom Scale (PANSS). Secondary outcomes, assessed at 3 and 6 months, consist of levels of disability, experience of harmful treatment practices and of victimization, and levels of perceived stigma and of caregivers' burden. DISCUSSION: Information about whether collaboration between orthodox and complementary health providers is feasible and can lead to improved outcome for patients is important to formulating policies designed to formally engage the services of traditional and faith healers within the public health system. TRIAL REGISTRATION: National Institutes of Health Clinical Trial registry, ID: NCT02895269 . Registered on 30 July 2016. PMID- 29017606 TI - Temporal distribution and insecticide resistance profile of two major arbovirus vectors Aedes aegypti and Aedes albopictus in Yaounde, the capital city of Cameroon. AB - BACKGROUND: Aedes aegypti and Ae. albopictus are the major epidemic vectors of several arbovirus diseases such as yellow fever, dengue, Zika and chikungunya worldwide. Both Aedes vectors are presents in Cameroon; however, knowledge on the dynamic of the distribution of these species across cities and their resistance profile to insecticide are limited. Here, we assessed the current distribution of Ae. aegypti and Ae. albopictus in Yaounde, the Capital City, established the resistance profile to insecticides and explored the resistance mechanisms involved. METHODS: Immature stages of Aedes were sampled in several breeding sites in December 2015 (dry season) and June 2016 (rainy season) in three central neighborhoods and four peripheral neighborhoods and reared to adult stage. The G0 adults were used for molecular identification and genotyping of F1534C mutation in Ae. aegypti. Bioassays and piperonyl butoxide (PBO) assays were carried out according to WHO guidelines. RESULTS: Analysis revealed that both species Ae. aegypti and Ae. albopictus are present in all prospected sites in Yaounde. However, in the dry season Ae. aegypti is most abundant in neighborhoods located in downtown. In contrast, Ae. albopictus was found most prevalent in suburbs whatever the season and in downtown during the rainy season. Bioassay analysis showed that both Ae. aegypti and Ae. albopictus, are resistant to 0.05% deltamethrin, 0.1% bendiocarb and 4% dichlorodiphenyltrichloroethane (DDT). A decreased of susceptibility to 0.75% permethrin and a full susceptibility to malathion 5% was observed. The mortality rate was increased after pre-exposure to synergist PBO. None of Ae. aegypti assayed revealed the presence of F1534C mutation. CONCLUSION: These findings are useful to planning vector control programme against arbovirus vectors in Cameroon and can be used as baseline in Africa where data on Aedes resistance is very scarce to plan further works. PMID- 29017607 TI - Non-digestible oligosaccharides directly regulate host kinome to modulate host inflammatory responses without alterations in the gut microbiota. AB - BACKGROUND: Prebiotics are non-digestible food ingredients that enhance the growth of certain microbes within the gut microbiota. Prebiotic consumption generates immune-modulatory effects that are traditionally thought to reflect microbial interactions within the gut. However, recent evidence suggests they may also impart direct microbe-independent effects on the host, though the mechanisms of which are currently unclear. METHODS: Kinome arrays were used to profile the host intestinal signaling responses to prebiotic exposures in the absence of microbes. Identified pathways were functionally validated in Caco-2Bbe1 intestinal cell line and in vivo model of murine endotoxemia. RESULTS: We found that prebiotics directly regulate host mucosal signaling to alter response to bacterial infection. Intestinal epithelial cells (IECs) exposed to prebiotics are hyporesponsive to pathogen-induced mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NF-kappaB) activations, and have a kinome profile distinct from non-treated cells pertaining to multiple innate immune signaling pathways. Consistent with this finding, mice orally gavaged with prebiotics showed dampened inflammatory response to lipopolysaccharide (LPS) without alterations in the gut microbiota. CONCLUSIONS: These findings provide molecular mechanisms of direct host-prebiotic interactions to support prebiotics as potent modulators of host inflammation. PMID- 29017608 TI - Autologous mesenchymal stem cells or meniscal cells: what is the best cell source for regenerative meniscus treatment in an early osteoarthritis situation? AB - BACKGROUND: Treatment of meniscus tears within the avascular region represents a significant challenge, particularly in a situation of early osteoarthritis. Cell based tissue engineering approaches have shown promising results. However, studies have not found a consensus on the appropriate autologous cell source in a clinical situation, specifically in a challenging degenerative environment. The present study sought to evaluate the appropriate cell source for autologous meniscal repair in a demanding setting of early osteoarthritis. METHODS: A rabbit model was used to test autologous meniscal repair. Bone marrow and medial menisci were harvested 4 weeks prior to surgery. Bone marrow-derived mesenchymal stem cells (MSCs) and meniscal cells were isolated, expanded, and seeded onto collagen hyaluronan scaffolds before implantation. A punch defect model was performed on the lateral meniscus and then a cell-seeded scaffold was press-fit into the defect. Following 6 or 12 weeks, gross joint morphology and OARSI grade were assessed, and menisci were harvested for macroscopic, histological, and immunohistochemical evaluation using a validated meniscus scoring system. In conjunction, human meniscal cells isolated from non-repairable bucket handle tears and human MSCs were expanded and, using the pellet culture model, assessed for their meniscus-like potential in a translational setting through collagen type I and II immunostaining, collagen type II enzyme-linked immunosorbent assay (ELISA), and gene expression analysis. RESULTS: After resections of the medial menisci, all knees showed early osteoarthritic changes (average OARSI grade 3.1). However, successful repair of meniscus punch defects was performed using either meniscal cells or MSCs. Gross joint assessment demonstrated donor site morbidity for meniscal cell treatment. Furthermore, human MSCs had significantly increased collagen type II gene expression and production compared to meniscal cells (p < 0.05). CONCLUSIONS: The regenerative potential of the meniscus by an autologous cell-based tissue engineering approach was shown even in a challenging setting of early osteoarthritis. Autologous MSCs and meniscal cells were found to have improved meniscal healing in an animal model, thus demonstrating their feasibility in a clinical setting. However, donor site morbidity, reduced availability, and reduced chondrogenic differentiation of human meniscal cells from debris of meniscal tears favors autologous MSCs for clinical use for cell based meniscus regeneration. PMID- 29017610 TI - HIV among people who inject drugs in Hungary. AB - BACKGROUND: Before 2014 (the year of closure of the two largest needle exchange programs in Hungary, which halved the number of available syringes in the country despite increased injecting risk practices) no HIV was reportedly acquired in Hungary among people who inject drugs (PWIDs) who were not also men who had sex with other men (MSM). In 2014, one and in 2015 two non-MSM PWIDs were newly diagnosed with HIV who supposedly became infected in Hungary, and both incident HIV cases in 2015 were diagnosed in the AIDS stage. In addition, two new (albeit supposedly imported) non-MSM PWID cases were also registered in the first three quarters of 2016, one of which subsequently was diagnosed with and then died of AIDS. At the same time, the prevalence of HCV doubled among PWIDs (from 24% to 49% in Hungary and from 34% to 61% in Budapest). CASE PRESENTATION: The case that we discuss in this paper is a male PWID, who was diagnosed with HIV and AIDS in May of 2015 and then died of AIDS the next month. His HIV infection status was detected with delay, and then appeared in the official statistics as an incident PWID HIV case and an incident PWID AIDS case, but not as an incident PWID AIDS death. No contact tracing followed, even though it would have been relatively easy considering the circumstances. To our knowledge, no HIV post-exposure protocol exists in hospitals, in case of HIV exposure due to an eventual needle stick injury. CONCLUSIONS: Our paper draws attention to recently published HIV and AIDS surveillance data, and shows the failure of the system. While sounding the alarm based on three newly detected PWID HIV cases in the past 2 years may be premature, there are definitely serious problems in the HIV detection and tracing system among PWIDs in Hungary. PMID- 29017609 TI - Effects of intra-arterial transplantation of adipose-derived stem cells on the expression of netrin-1 and its receptor DCC in the peri-infarct cortex after experimental stroke. AB - BACKGROUND: Stem cell transplantation has been documented to promote functional recovery in animal models of stroke; however, the underlying mechanisms are not yet fully understood. As netrin-1 and its receptor deleted in colorectal cancer (DCC) are important regulators in neuronal and vascular activities, the present study attempted to explore whether netrin-1 and DCC are involved in the neuroprotection of stem cell-based therapies in a rat ischemic stroke model. METHODS: Adult male Sprague-Dawley rats were subjected to a transient middle cerebral artery occlusion (MCAO) and subsequently received an intra-arterial injection of 2 * 106 PKH26-labeled adipose-derived stem cells (ADSCs) or saline 24 h later. Neurological function was evaluated by behavioral tests before the rats were sacrificed at days 7 and 14 after MCAO. The migration of ADSCs and regeneration of neuronal fibers and blood vessels were determined by immunofluorescence staining. The expression of netrin-1 and DCC was analyzed by Western blot and immunofluorescence staining. RESULTS: ADSC transplantation significantly improved the neurological recovery at days 7 and 14, and noticeably promoted the regeneration of neuronal fibers and blood vessels in the peri infarct cortex at day 14. PKH26-labeled ADSCs located mainly in the peri-infarct area at days 7 and 14. In ADSC-treated rats, the expression of netrin-1 and DCC significantly increased in the peri-infarct cortex at days 7 and 14. Immunofluorescence staining showed that netrin-1 was mainly expressed by neuronal perikaryal in the peri-infarct cortex, and DCC was mainly expressed by neuronal fibers and was present around the blood vessels in the peri-infarct cortex. CONCLUSIONS: These findings suggest that ADSC transplantation facilitates the regeneration of neuronal fibers and blood vessels in the peri-infarct cortex and improves neurological functions, which may be attributed, at least in part, to the involvement of upregulated netrin-1 and DCC in the remodeling of neuronal and vascular networks in the peri-infarct cortex. PMID- 29017611 TI - Amplicon sequencing of bacterial microbiota in abortion material from cattle. AB - Abortions in cattle have a significant economic impact on animal husbandry and require prompt diagnosis for surveillance of epizootic infectious agents. Since most abortions are not epizootic but sporadic with often undetected etiologies, this study examined the bacterial community present in the placenta (PL, n = 32) and fetal abomasal content (AC, n = 49) in 64 cases of bovine abortion by next generation sequencing (NGS) of the 16S rRNA gene. The PL and AC from three fetuses of dams that died from non-infectious reasons were included as controls. All samples were analyzed by bacterial culture, and 17 were examined by histopathology. We observed 922 OTUs overall and 267 taxa at the genus level. No detectable bacterial DNA was present in the control samples. The microbial profiles of the PL and AC differed significantly, both in their composition (PERMANOVA), species richness and Chao-1 (Mann-Whitney test). In both organs, Pseudomonas was the most abundant genus. The combination of NGS and culture identified opportunistic pathogens of interest in placentas with lesions, such as Vibrio metschnikovii, Streptococcus uberis, Lactococcus lactis and Escherichia coli. In placentas with lesions where culturing was unsuccessful, Pseudomonas and unidentified Aeromonadaceae were identified by NGS displaying high number of reads. Three cases with multiple possible etiologies and placentas presenting lesions were detected by NGS. Amplicon sequencing has the potential to uncover unknown etiological agents. These new insights on cattle abortion extend our focus to previously understudied opportunistic abortive bacteria. PMID- 29017612 TI - A pilot study of hot-wire, ultrasonic and wedge-bellows spirometer inter- and intra-variability. AB - OBJECTIVE: The aim of this pilot study was to compare spirometric values obtained with different types of spirometers, spirometers of same type, and repeated measurements with the same spirometer in a pulmonary function laboratory setting. RESULTS: 12 healthy volunteers performed spirometry on four hot-wire (SensorMedics), two ultrasonic (Spirare) and one wedge-bellows (Vitalograph S) spirometers, according to ATS/ERS (American Thoracic Society/European Respiratory Society) guidelines. Spirometric values were compared using linear mixed models analysis with a random intercept for subjects and a fixed effect for type of spirometer used. Confidence intervals and p values were adjusted for multiple comparisons. Mean +/- SD (L) values for hot-wire, ultrasonic and wedge-bellows spirometers for FVC (forced vital capacity) were 4.02 +/- 0.66, 3.69 +/- 0.61 and 3.93 +/- 0.69, and for FEV1 (forced expiratory volume in one second) 3.06 +/- 0.44, 2.95 +/- 0.44 and 3.10 +/- 0.49. Significant differences were found between hot-wire and ultrasonic and between wedge-bellows and ultrasonic spirometers for FVC and FEV1, and between hot-wire and wedge-bellows spirometers for FVC but not for FEV1. There were no significant differences between spirometers of same type, and low mean differences in repeated measurements for all spirometers included. In conclusion, the pilot study shows systematically higher values for FVC and FEV1 for hot-wire and wedge-bellows compared to ultrasonic spirometers. PMID- 29017614 TI - Recovery test results as a prerequisite for publication of gaseous exchange measurements. PMID- 29017613 TI - A multiplex PCR for detection of knockdown resistance mutations, V1016G and F1534C, in pyrethroid-resistant Aedes aegypti. AB - BACKGROUND: Mutation of the voltage-gated sodium channel (VGSC) gene, or knockdown resistance (kdr) gene, is an important resistance mechanism of the dengue vector Aedes aegypti mosquitoes against pyrethroids. In many countries in Asia, a valine to glycine substitution (V1016G) and a phenylalanine to cysteine substitution (F1534C) are common in Ae. aegypti populations. The G1016 and C1534 allele frequencies have been increasing in recent years, and hence there is a need to have a simple and inexpensive tool to monitor the alleles in large scale. METHODS: A multiplex PCR to detect V1016G and F1534C mutations has been developed in the current study. This study utilized primers from previous studies for detecting the mutation at position 1016 and newly designed primers to detect variants at position 1534. The PCR conditions were validated and compared with DNA sequencing using known kdr mutant laboratory strains and field collected mosquitoes. The efficacy of this method was also compared with allele-specific PCR (AS-PCR). RESULTS: The results of our multiplex PCR were in complete agreement with sequencing data and better than the AS-PCR. In addition, the efficiency of two non-toxic DNA staining dyes, UltrapowerTM and RedSafeTM, were evaluated by comparing with ethidium bromide (EtBr) and the results were satisfactory. CONCLUSIONS: Our multiplex PCR method is highly reliable and useful for implementing vector surveillance in locations where the two alleles co-occur. PMID- 29017615 TI - Development of equations to predict the influence of floor space on average daily gain, average daily feed intake and gain : feed ratio of finishing pigs. AB - Floor space allowance for pigs has substantial effects on pig growth and welfare. Data from 30 papers examining the influence of floor space allowance on the growth of finishing pigs was used in a meta-analysis to develop alternative prediction equations for average daily gain (ADG), average daily feed intake (ADFI) and gain : feed ratio (G : F). Treatment means were compiled in a database that contained 30 papers for ADG and 28 papers for ADFI and G : F. The predictor variables evaluated were floor space (m2/pig), k (floor space/final BW0.67), Initial BW, Final BW, feed space (pigs per feeder hole), water space (pigs per waterer), group size (pigs per pen), gender, floor type and study length (d). Multivariable general linear mixed model regression equations were used. Floor space treatments within each experiment were the observational and experimental unit. The optimum equations to predict ADG, ADFI and G : F were: ADG, g=337.57+(16 468*k)-(237 350*k 2)-(3.1209*initial BW (kg))+(2.569*final BW (kg))+(71.6918*k*initial BW (kg)); ADFI, g=833.41+(24 785*k)-(388 998*k 2) (3.0027*initial BW (kg))+(11.246*final BW (kg))+(187.61*k*initial BW (kg)); G : F=predicted ADG/predicted ADFI. Overall, the meta-analysis indicates that BW is an important predictor of ADG and ADFI even after computing the constant coefficient k, which utilizes final BW in its calculation. This suggests including initial and final BW improves the prediction over using k as a predictor alone. In addition, the analysis also indicated that G : F of finishing pigs is influenced by floor space allowance, whereas individual studies have concluded variable results. PMID- 29017617 TI - Birth weight and postnatal microbial exposures predict the distribution of peripheral blood leukocyte subsets in young adults in the Philippines. AB - The immune system not only provides protection against infectious disease but also contributes to the etiology of neoplastic, atopic, and cardiovascular and metabolic diseases. Prenatal and postnatal nutritional and microbial environments have lasting effects on multiple aspects of immunity, indicating that immune processes may play important roles in the developmental origins of disease. The objective of this study is to evaluate the association between birth weight and the distribution of leukocyte (white blood cell) subsets in peripheral blood in young adulthood. Postnatal microbial exposures were also considered as predictors of leukocyte distribution. Participants (n=486; mean age=20.9 years) were drawn from a prospective birth cohort study in the Philippines, and analyses focused on the following cell types: CD4 T lymphocytes, CD8 T lymphocytes, B lymphocytes, natural killer cells, monocytes, granulocytes. Higher birth weight was a strong predictor of higher proportion of CD4 T lymphocytes (B=0.12, s.e.=0.041, P=0.003), lower proportion of CD8 T lymphocytes (B=-0.874, s.e.=0.364, P=0.016), higher CD4:CD8 ratio (B=1.964, s.e.=0.658, P=0.003), and higher B lymphocytes (B=0.062, s.e.=0.031, P=0.047). Measures of microbial exposure in infancy were negatively associated with proportions of B lymphocytes and granulocytes, and lower CD4:CD8 ratio. Leukocytes are the key regulators and effectors of innate and specific immunity, but the origins of variation in the distribution of cell type across individuals are not known. Our findings point toward nutritional and microbial exposures in infancy as potentially important determinants of immune phenotypes in adulthood, and they suggest that leukocyte distribution is a plausible mechanism through which developmental environments have lasting effects on disease risk in adulthood. PMID- 29017616 TI - Quantitative interferon-gamma responses predict future disease progression in badgers naturally infected with Mycobacterium bovis. AB - The diagnosis and control of Mycobacterium bovis infection (bovine tuberculosis: TB) continues to present huge challenges to the British cattle industry. A clearer understanding of the magnitude and duration of immune response to M. bovis infection in the European badger (Meles meles) - a wildlife maintenance host - may assist with the future development of diagnostic tests, and vaccination and disease management strategies. Here, we analyse 5280 diagnostic test results from 550 live wild badgers from a naturally-infected population to investigate whether one diagnostic test (a gamma interferon release [IFNgamma] assay, n = 550 tests) could be used to predict future positive results on two other tests for the same disease (a serological test [n = 2342 tests] and mycobacterial culture [n = 2388 tests]) and hence act as an indicator of likely bacterial excretion or disease progression. Badgers with the highest IFNgamma optical density (OD) values were most likely to subsequently test positive on both serological and culture tests, and this effect was detectable for up to 24 months after the IFNgamma test. Furthermore, the higher the original IFNgamma OD value, the greater the chance that a badger would subsequently test positive using serology. Relationships between IFNgamma titres and mycobacterial culture results from different types of clinical sample suggest that the route of infection may affect the magnitude of immune response in badgers. These findings identify further value in the IFNgamma test as a useful research tool, as it may help us to target studies at animals and groups that are most likely to succumb to more progressive disease. PMID- 29017618 TI - Dissociation between affective experience and motivated behaviour in schizophrenia patients and their unaffected first-degree relatives and schizotypal individuals. AB - BACKGROUND: The neuropsychological origins of negative syndrome of schizophrenia remain elusive. Evidence from behavioural studies, which utilised emotion inducing pictures to elicit motivated behaviour generally reported that that schizophrenia patients experienced similar affective experience as healthy individuals but failed to translate emotional salience to motivated behaviour, a phenomenon called emotion-behaviour decoupling. However, a few studies have examined emotion-behaviour decoupling in non-psychotic high-risk populations, who are relatively unaffected by medication effects. METHODS: In this study, we examined the nature and extent of emotion-behaviour decoupling in in three independent samples (65 schizophrenia patients v. 63 controls; 40 unaffected relatives v. 45 controls; and 32 individuals with social anhedonia v. 32 controls). We administered an experimental task to examine their affective experience and its coupling with behaviour, using emotion-inducing slides, and allowed participants to alter stimulus exposure using button-pressing to seek pleasure or avoid aversion. RESULTS: Schizophrenia patients reported similar affective experiences as their controls, while their unaffected relatives and individuals with high levels of social anhedonia exhibited attenuated affective experiences, in particular in the arousal aspect. Compared with their respective control groups, all of the three groups showed emotion-behaviour decoupling. CONCLUSIONS: Our findings support that both genetically and behaviourally high risk groups exhibit emotion-behaviour decoupling. The familial association apparently supports its role as a putative trait marker for schizophrenia. PMID- 29017619 TI - RELATIONSHIP BETWEEN ORPHANHOOD STATUS, LIVING ARRANGEMENTS AND SEXUAL DEBUT: EVIDENCE FROM FEMALES IN MIDDLE ADOLESCENCE IN SOUTHERN AFRICA. AB - SummaryThis study examined the relationship between orphanhood status, living arrangements and sexual debut. The study is important in the context of southern Africa, where a substantial number of children live apart from their parents because the parent is dead or living elsewhere, and where female adolescents face disproportionate sexual and reproductive health risks. Data for female adolescents were taken from Demographic and Health Surveys conducted in seven southern African countries. Unadjusted and adjusted hazard ratios of sexual debut were estimated using Cox Proportional Hazard models. The results from multivariate analyses showed that non-co-residence with biological parents was significantly associated with higher risk of sexual debut in five of the seven countries. Using pooled data, the results showed that father absence was associated with higher risk of sexual debut - whether the father was deceased or living elsewhere. Interventions to delay sexual debut among female adolescents should seek to promote father-adolescent co-residence and improve access to education. PMID- 29017621 TI - Challenges for bilateral pulmonary artery stenting due to occluded femoral veins. AB - When the inferior caval vein is occluded or abnormal, jugular and hepatic veins provide alternative routes for interventions. For pulmonary artery stenting, transhepatic access may give a relatively straighter route than that from the jugular veins. We describe the challenges and strategies during transhepatic bilateral pulmonary artery stenting after arterial switch operation complicated by occluded inferior caval vein and congested hepatic veins. PMID- 29017622 TI - Analysis of lead pollution levels within an urban ecosystem using the cestode Hymenolepis diminuta and its rat hosts as bioindicators. AB - The overall goal of this study was to use the Rattus spp./Hymenolepis diminuta model to assess environmental lead pollution in different landscape units of an urban ecosystem. Rats of the genus Rattus were collected from three shanty towns and three residential neighbourhoods of the city of Buenos Aires. Concentrations of lead in the livers of wild rats and in their parasite H. diminuta were measured using inductively coupled plasma mass spectrometry (ICP-MS). The landscape unit and tissue type had a significant effect on lead concentration, being higher in residential neighbourhoods as well as in H. diminuta tissue. Nevertheless, no significant differences were found for the mean lead concentration in livers between uninfected and infected rats. Since the available information describing heavy-metal pollution within the city of Buenos Aires is scarce, the results of this study allow us to update data about the extent of biologically available lead contamination. Considering that rats and H. diminuta are distributed worldwide, this monitoring system for lead pollution might be applied successfully in other urban ecosystems. PMID- 29017623 TI - The genealogy of the clinical syndrome of mania: signs and symptoms described in psychiatric texts from 1880 to 1900. AB - In 1800, mania was conceptualized as an agitated psychotic state. By 1900, it closely resembled its modern form. This paper reviews the descriptions of mania in Western psychiatry from 1880 to 1900, when Kraepelin was training and developing his concept of manic-depressive illness. Psychiatric textbooks published 1900-1960 described 22 characteristic manic symptoms/signs the presence of which were recorded in 25 psychiatric textbooks and three other key documents published 1880-1900. Descriptions of mania in these nineteenth century textbooks closely resembled those in the twentieth century, recording a mean (s.d.) of 15.9 (2.3) and 17.0 (2.3) of the characteristic symptoms, respectively (p = 0.12). The frequency with which individual symptoms were reported was substantially correlated in these two periods (r = +0.64). Mendel's 1881 monograph, Kraepelin's first description of mania in 1883 and the entry for mania in Tuke's Dictionary of Psychological Medicine (1892) described a mean (s.d.) of 19 (1.7) of these characteristic symptoms. These descriptions of mania often contained phenomenologically rich descriptions of euphoria, hyperactivity, grandiosity, flight of ideas, and poor judgment. They also emphasized several features not in DSM criteria including changes in character, moral standards and physical appearance, and increased sense of humor and sexual drive. Fifteen authors described key symptoms/signs of mania most reporting elevated mood, motoric hyperactivity and accelerated mental processes. By 1880, the syndrome of mania had been largely stabilized in its modern form. In the formation of his concept of manic-depressive illness, Kraepelin utilized the syndrome of mania as described in the psychiatric community in which he was trained. PMID- 29017624 TI - Sociodemographic inequalities in the management of depression in adults aged 55 and over: an analysis of English primary care data. AB - BACKGROUND: We do not know how primary care treatment of depression varies by age across both psychotropic medication and psychological therapies. METHODS: Cohort study including 19 710 people aged 55+ with GP recorded depression diagnoses and 26 276 people with recorded depression symptoms during the period 2009-2013, from 373 General Practices in The Health Improvement Network (THIN) database in England. Main outcomes were initiation of treatment with anti-depressants, anxiolytics, hypnotics, anti-psychotic drugs, referrals to psychological therapies within 6 months of onset. RESULTS: Treatment rates with antidepressants are high for those recorded with new depression diagnoses (87.1%) or symptoms of depression (58.7%). Treatment in those with depression diagnoses varies little by age. In those with depressive symptoms there was a J-shaped pattern with reduced antidepressant treatment in those in their 60s and 70s followed by increased treatment in the oldest age groups (85+ years), compared with those aged 55-59 years. Other psychotropic drug prescribing (hypnotics/anxiolytics, antipsychotics) all increase with increasing age. Recorded referrals for psychological therapies were low, and decreased steadily with increasing age, such that women aged 75-79 years with depression diagnoses had around six times lower odds of referral (OR 0.17, 95% CI 0.1-0.29) than those aged 55-59 years, and men aged 80-84 years had around seven times lower (OR 0.14, 95% CI 0.05 0.36). CONCLUSIONS: The oldest age groups with new depression diagnoses and symptoms have fewer recorded referrals to psychological therapies, and higher psychotropic drug treatment rates in primary care. This suggests potential inequalities in access to psychological therapies. PMID- 29017625 TI - Molecular data reveal high diversity of Uvulifer (Trematoda: Diplostomidae) in Middle America, with the description of a new species. AB - Members of the genus Uvulifer are distributed worldwide and infect aquatic snails and freshwater fishes as first and second intermediate hosts, respectively, and fish-eating birds (kingfishers) as definitive hosts. Metacercariae of Uvulifer spp. were collected from the fins and skin of 20 species of freshwater fishes in Mexico, Guatemala, Honduras, Nicaragua and Costa Rica, and the adults were recovered from the intestine of kingfishers in four localities of Mexico. The genetic divergence among 76 samples (64 metacercariae and 12 adults) was estimated by sequencing the 28S and 5.8S nuclear genes, as well as the internal transcribed spacers ITS1 and ITS2, and one mitochondrial gene (cox1). Maximum likelihood and Bayesian inference analyses inferred with each dataset showed a high genetic diversity within the genus Uvulifer across Middle America, revealing the existence of four genetic lineages that exhibit some level of host specificity to their second intermediate hosts. The metacercariae of lineage 1 were associated with characids and cyprinids in central and northern Mexico. Metacercariae of lineages 2 and 3 were associated with cichlids distributed widely across Middle America. The lack of adults of these lineages in kingfishers, in lineages 2 and 3, or the fact that just a few adult specimens were recovered, as in lineage 1, prevented a formal description of these species. The metacercariae of lineage 4 were found in poeciliids, across a distribution range comprising Mexico, Guatemala, Honduras and Nicaragua, and the adult was found in the green kingfisher in Mexico. The number of specimens sampled for lineage 4, for both gravid adults and metacercariae, allowed us to describe a new species, Uvulifer spinatus n. sp. We describe the new species herein and we discuss briefly the genetic diversity in Uvulifer spp. and the importance of using DNA sequences to properly characterize parasite diversity. PMID- 29017620 TI - Familial aggregation of MATRICS Consensus Cognitive Battery scores in a large sample of outpatients with schizophrenia and their unaffected relatives. AB - BACKGROUND: The increased use of the MATRICS Consensus Cognitive Battery (MCCB) to investigate cognitive dysfunctions in schizophrenia fostered interest in its sensitivity in the context of family studies. As various measures of the same cognitive domains may have different power to distinguish between unaffected relatives of patients and controls, the relative sensitivity of MCCB tests for relative-control differences has to be established. We compared MCCB scores of 852 outpatients with schizophrenia (SCZ) with those of 342 unaffected relatives (REL) and a normative Italian sample of 774 healthy subjects (HCS). We examined familial aggregation of cognitive impairment by investigating within-family prediction of MCCB scores based on probands' scores. METHODS: Multivariate analysis of variance was used to analyze group differences in adjusted MCCB scores. Weighted least-squares analysis was used to investigate whether probands' MCCB scores predicted REL neurocognitive performance. RESULTS: SCZ were significantly impaired on all MCCB domains. REL had intermediate scores between SCZ and HCS, showing a similar pattern of impairment, except for social cognition. Proband's scores significantly predicted REL MCCB scores on all domains except for visual learning. CONCLUSIONS: In a large sample of stable patients with schizophrenia, living in the community, and in their unaffected relatives, MCCB demonstrated sensitivity to cognitive deficits in both groups. Our findings of significant within-family prediction of MCCB scores might reflect disease-related genetic or environmental factors. PMID- 29017626 TI - Case series of mild behavioral impairment: toward an understanding of the early stages of neurodegenerative diseases affecting behavior and cognition. AB - Mild behavioral impairment (MBI) is characterized by later life acquired, sustained, and impactful neuropsychiatric symptoms (NPS) of any severity that cannot be better accounted for by other formal medical and psychiatric nosology. MBI is an "at risk" state for incident cognitive decline and dementia, and for some, MBI is the index manifestation of neurodegeneration, observed in advance of cognitive impairment. Initially described in Frontotemporal Dementia (FTD), MBI evolved to describe a preclinical stage of all cause dementia, and has been operationalized in the International Society to Advance Alzheimer's Research and Treatment-Alzheimer's Association (ISTAART-AA) proposed research diagnostic criteria. Here, we describe three cases in which patients diagnosed with a variety of dementing conditions initially presented with NPS to the Cognitive Neurosciences Clinic at the University of Calgary, Canada. All patients described in our series were given a final diagnosis of dementia; the etiology supported by clinical, cognitive, and neuroimaging findings. In all three cases, the progression to dementia was preceded by NPS that meet criteria for MBI. With these examples, we are able to illustrate that MBI can represent a premonitory stage of dementia of different etiologies. These cases demonstrate early use of the MBI checklist (MBI-C). The cases presented in this series serve as examples of NPS as early manifestations of dementia. Our case examples include both FTD and AD, and demonstrate that before a diagnosis of a neurodegenerative disease is considered, often patients will be diagnosed with and treated for a psychiatric condition. These early NPS can be characterized within the domains outlined in the ISTAART-AA MBI criteria, and detected with the MBI-C, which may help clinicians consider neurodegenerative disease in the differential diagnosis of later life onset psychiatric symptomatology. PMID- 29017627 TI - Mycoprotein represents a bioavailable and insulinotropic non-animal-derived dietary protein source: a dose-response study. AB - The anabolic potential of a dietary protein is determined by its ability to elicit postprandial rises in circulating essential amino acids and insulin. Minimal data exist regarding the bioavailability and insulinotropic effects of non-animal-derived protein sources. Mycoprotein is a sustainable and rich source of non-animal-derived dietary protein. We investigated the impact of mycoprotein ingestion, in a dose-response manner, on acute postprandial hyperaminoacidaemia and hyperinsulinaemia. In all, twelve healthy young men completed five experimental trials in a randomised, single-blind, cross-over design. During each trial, volunteers consumed a test drink containing either 20 g milk protein (MLK20) or a mass matched (not protein matched due to the fibre content) bolus of mycoprotein (20 g; MYC20), a protein matched bolus of mycoprotein (40 g; MYC40), 60 g (MYC60) or 80 g (MYC80) mycoprotein. Circulating amino acid, insulin and uric acid concentrations, and clinical chemistry profiles, were assessed in arterialised venous blood samples during a 4-h postprandial period. Mycoprotein ingestion resulted in slower but more sustained hyperinsulinaemia and hyperaminoacidaemia compared with milk when protein matched, with overall bioavailability equivalent between conditions (P>0.05). Increasing the dose of mycoprotein amplified these effects, with some evidence of a plateau at 60-80 g. Peak postprandial leucine concentrations were 201 (sem 24) (30 min), 118 (sem 10) (90 min), 150 (sem 14) (90 min), 173 (sem 23) (45 min) and 201 (sem 21 (90 min) umol/l for MLK20, MYC20, MYC40, MYC60 and MYC80, respectively. Mycoprotein represents a bioavailable and insulinotropic dietary protein source. Consequently, mycoprotein may be a useful source of dietary protein to stimulate muscle protein synthesis rates. PMID- 29017629 TI - Potent nematicidal activity of phenolic derivatives on Meloidogyne incognita. AB - The present study describes the nematicidal activity of ten selected phenolic derivatives using the root knot nematode, Meloidogyne incognita, model. Nematicidal activity was then correlated with the anti-oxidant power. The highest nematicidal activity was recorded for p-nitrophenol followed by m-nitrophenol, o nitrophenol and p-bromophenol, with an EC50 after 1 day of immersion of about 0.70 +/- 0.64, 8.14 +/- 5.49, 15.79 +/- 10.81 and 25.92 +/- 11.37 MUg/ml, respectively. The structure-activity relationship indicates that the nitro-group at position 4 on the phenolic ring (p-nitrophenol) is very important for nematicidal activity, followed by that at position 2 (o-nitrophenol) and position 3 (m-nitrophenol). p-Nitrophenol showed the highest nematicidal activity with the corresponding lowest anti-oxidant activity of about 97 +/- 20 MUg/ml. In conclusion, these findings suggest that phenolic derivatives could be considered as potent nematicidal agents and be integrated in the pest-management system. PMID- 29017628 TI - Effects of microencapsulated Lactobacillus plantarum LIP-1 on the gut microbiota of hyperlipidaemic rats. AB - The in vivo effects of administering free and microencapsulated Lactobacillus plantarum LIP-1 cells (2.0*109 colony-forming units/d) were evaluated in high-fat diet-induced hyperlipidaemic rats. Results from real-time quantitative PCR targeting to LIP-1 cells showed a higher colon colonisation count of LIP-1 in the rats receiving microencapsulated cells compared with free cells (P<0.05). Moreover, the microencapsulated LIP-1 treatment resulted in a more obvious lipid lowering effect (P<0.05). Meanwhile, their faecal samples had significantly less lipopolysaccharide-producing bacteria (especially Bilophila, Sutterella and Oscillibacter) and mucosa-damaging bacteria (Bilophila and Akkermansia muciniphila), whereas significantly more SCFA-producing bacteria (P<0.05) (namely Lactobacillus, Alloprevotella, Coprococcus, Eubacterium and Ruminococcus) and bacteria that potentially possessed bile salt hydrolase activity (Bacteroides, Clostridium, Eubacterium and Lactobacillus), and other beneficial bacteria (Alistipes and Turicibacter). Further, Spearman's correlation analysis showed significant correlations between some of the modulated gut bacteria and the serum lipid levels. These results together confirm that microcapsulation enhanced the colon colonisation of LIP-1 cells, which subsequently exhibited more pronounced effects in improving the gut microbiota composition of hyperlipidaemic rats and lipid reduction. PMID- 29017630 TI - Poor perinatal growth impairs baboon aortic windkessel function. AB - The ability of the aorta to buffer blood flow and provide diastolic perfusion (Windkessel function) is a determinant of cardiovascular health. We have reported cardiac dysfunction indicating downstream vascular abnormalities in young adult baboons who were intrauterine growth restricted (IUGR) at birth as a result of moderate maternal nutrient reduction. Using 3 T MRI, we examined IUGR offspring (eight male, eight female; 5.7 years; human equivalent 25 years) and age-matched controls (eight male, eight female; 5.6 years) to quantify distal descending aortic cross-section (AC) and distensibility (AD). ANOVA showed decreased IUGR AC/body surface area (0.9+/-0.05 cm2/m2 v. 1.2+/-0.06 cm2/m2, M+/-s.e.m., P<0.005) and AD (1.7+/-0.2 v. 4.0+/-0.5*10-3/mmHg, P<0.005) without sex difference or group-sex interaction, suggesting intrinsic vascular pathology and impaired development persisting in adulthood. Future studies should evaluate potential consequences of these changes on coronary perfusion, afterload and blood pressure. PMID- 29017631 TI - Infants born with critical CHD in Arizona and capacities of birth centres for screening and management. AB - OBJECTIVES: The aims of this study were to identify locations of births in Arizona with critical CHD, as well as to assess the current use of pulse-oximetry screening and capacities of birth centres to manage a positive screen. Study design Infants (n=487) with a potentially critical CHD were identified from the Arizona Department of Health Services from 2012 and 2013; charts were retrospectively reviewed. Diagnosis was confirmed using echocardiographies. ArcGIS was used to generate maps to visualise the location of treating facility and mother's residence. Birth centres were surveyed to assess screening practices and capacities to manage critical CHD in 2015. RESULTS: Of the 272 patients identified with critical CHD, 52% had been diagnosed prenatally. Patients travelled an average distance of 55.1 miles to their treating facility. Mortality was not related to prenatal diagnosis (p=0.30), living at a high elevation (p=0.82), or to distance travelled to the treating facility (p=0.68). Of 50 birth centres, 33 responded to the survey and all centres practiced critical CHD screening. A total of 25 centres could perform paediatric echocardiographies; 64% of these centres could digitally transmit echocardiograms. In all, 24 birth centres maintained access to prostaglandins. CONCLUSIONS: Pulse-oximetry screening in newborns is currently implemented in the majority of Arizona hospitals. Although most centres could perform initial management steps following a positive screen, access to paediatric cardiology services was limited. Patients with critical CHD sometimes travelled a great distance to treating facilities. Digital transmission of echocardiograms or tele-echocardiography would reduce the distance travelled for the management of a positive screen, decrease the financial burden of transportation, and expedite care for critically ill neonates. PMID- 29017632 TI - Categories, diversity, and relevance of memory strategies reported by community dwelling seniors. AB - BACKGROUND: Memory strategies help seniors remember information that is essential for the performance of their daily activities and contribute to their independence in the context of declining memory skills. This study aimed to analyze the categories, the diversity, and relevance of memory strategies known by seniors, and to identify individual characteristics that correlated with these variables. METHODS: The sample consisted of 294 participants aged 60 and over who decided to take part in a cognitive vitality promotion program. An adapted version of the memory situation questionnaire (Troyer, 2001) was administered to identify the memory strategies that seniors would use in five daily life situations. A scoring grid, also adapted from the questionnaire's original version (Troyer, 2001), was used to quantify the relevance of the strategies that were reported by participants. RESULTS: All participants mentioned at least once that they would use a strategy from the physical category of memory strategies. Out of a possible range of 26 strategies, participants answered an average of 6.14 (SD = 1.7) different answers across the five situations. Based on expert consensus, 67.7% of the mentioned memory strategies were relevant. Diversity and relevance were significantly higher when trying to remember appointments, things to bring or phone numbers (p <= 0.05). The level of education, cognitive skills, and participation in leisure activities were related to diversity and relevance of reported strategies. CONCLUSIONS: Seniors know various and relevant memory strategies to perform daily activities. The advantages of integrating strategies that they already know in cognitive health promotion programs should be considered in further studies. PMID- 29017633 TI - Associations between maternal prenatal stress, methylation changes in IGF1 and IGF2, and birth weight. AB - Maternal stress has been linked to low birth weight in newborns. One potential pathway involves epigenetic changes at candidate genes that may mediate the effects of prenatal maternal stress on birth weight. This relationship has been documented in stress-related genes, such as NR3C1. There is less literature exploring the effect of stress on growth-related genes. IGF1 and IGF2 have been implicated in fetal growth and development, though via different mechanisms as IGF2 is under imprinting control. In this study, we tested for associations between prenatal stress, methylation of IGF1 and IGF2, and birth weight. A total of 24 mother-newborn dyads in the Democratic Republic of Congo were enrolled. Ethnographic interviews were conducted with mothers at delivery to gather culturally relevant war-related and chronic stressors. DNA methylation data were generated from maternal venous, cord blood and placental tissue samples. Multivariate regressions were used to test for associations between stress measures, DNA methylation and birth weight in each of the three tissue types. We found an association between IGF2 methylation in maternal blood and birth weight. Previous literature on the relationship between IGF2 methylation and birth weight has focused on methylation at known differentially methylated regions in cord blood or placental samples. Our findings indicate there may be links between the maternal epigenome and low birth weight that rely on mechanisms outside known imprinting pathways. It thus may be important to consider the effect of maternal exposures and epigenetic profiles on birth weight even in the setting of maternally imprinted genes such as IGF2. PMID- 29017634 TI - Factors Influencing New RNs' Supervisory Performance in Long-Term Care Facilities. AB - In long-term care facilities (LTCF), registered nurses (RNs) perform both clinical and supervisory roles as part of a team aiming to provide high-quality care to residents. The residents have several co-morbidities and complex care needs. Unfortunately, new RNs receive minimal preparation in gerontology and supervisory experience during their program, leading to low retention rates and affecting resident outcomes. This qualitative study explored factors that influence supervisory performance of new RNs in LTCF from the perspective of 24 participants from Ontario, Canada. Data were collected through individual interviews, followed by a directed content analysis. Three levels of influences were identified: personal influences, organizational influences, and external influences. Each level presented with sub-elements, further describing the factors that impact the supervisory performance of the new RN. To retain new RNs in LTC, organizations must provide additional gerontological education and mentoring for new RNs to flourish in their supervisory roles. PMID- 29017635 TI - Hymenolepis diminuta and Rodentolepis nana (Hymenolepididae: Cyclophyllidea) in urban rodents of Gran La Plata: association with socio-environmental conditions. AB - The aim of this survey was to study two Hymenolepididae species in urban rodents, Rattus rattus and Rattus norvegicus, and to analyse factors that favour their presence in the environment and pose a sanitary risk. Hymenolepis diminuta and Rodentolepis nana were found in R. rattus and R. norvegicus in different proportions. Values of prevalence, mean abundance and mean intensity were recorded, and new morphometric characters were described, adding to previously known information. No significant differences were found. However, the results revealed that there is a tendency for these parasites to develop in areas with deficient socio-structural conditions and in water bodies. This study thereby shows that certain areas on the periphery of the Gran La Plata favour the existence of rodents, which act as sentinels of zoonotic diseases, and stresses the need to take action to minimize them in order to avoid putting human and animal health at risk. PMID- 29017636 TI - Psychometric Properties of the Lifetime Assessment of Violent Acts. AB - The Lifetime Assessment of Violent Acts (LAVA) inventory provides estimates of the frequency, triggers, and consequences (including injuries to others) of historic acts of aggression. The LAVA also identifies the situational contexts in which prior violence was triggered and allows classifications based on past reactive, intimate partner, alcoholrelated, and/or weapon-related violence. Normative and psychometric data were provided from a college (N = 1,133) and general population (N = 545) sample. Around 15% of the general population sample recalled inflicting 5 or more injuries on others at some time in the past. LAVA scores were significantly higher for women than men (d = .45), and respondents from the general population were more aggressive than those in the college sample (d = .41). The potential benefits, applications, and limitations of this retrospective self-report inventory are discussed. PMID- 29017637 TI - Intimate Terrorism and Situational Couple Violence: Classification Variability Across Five Methods to Distinguish Johnson's Violent Relationship Types. AB - Johnson's (1995, 2008) theory of violent relationship types represents an opportunity to resolve debates surrounding intimate partner violence (IPV) prevalence and to adapt policy and treatment options for victims accordingly. However, the use of quantitative methods to distinguish between situational couple violence (SCV) and intimate terrorism (IT) remains in its initial stages of discovery. This study included a 2-phase (N = 840; via targeted community and agency sampling) online survey design comparing the utility and grouping variability across 5 methods of IT/SCV classification: victimization-variables and coercive-control-variable hierarchical clustering, vignette-choice, cutoff scoring, and expert coding. Findings are discussed in terms of contributions to differing IPV-research perspectives, researchers' understanding of existing classification methods, and practitioners' awareness of victims' voices in quantitative research. PMID- 29017638 TI - The Difference Between Living and Dying: Victim Characteristics and Motive Among Nonfatal Shootings and Gun Homicides. AB - Using both official and unofficial data sources, researchers examined nonfatal (n = 617) and fatal shooting (n = 159) victim characteristics over an 18-month period in Indianapolis. This research revealed that the typical shooting victim was male, non-White, almost 29 years old, had been arrested prior to inclusion in this study, and had been shot more than once. Interestingly, this research supports the notion that nonfatal shooting and homicide victims are different, especially as they relate to victim age, gunshot wound severity, and shooting motive. It highlights the need for better gun violence data collection beyond what currently exists. Striving for improved, more comprehensive cross-sector data collection has implications beyond just police policy and practice to include public health and prevention efforts. PMID- 29017639 TI - Predicting Grief Reactions One Year Following a Mass University Shooting: Evaluating Dose-Response and Contextual Predictors. AB - This study identifies risk factors for grief following a mass school shooting. Participants (N = 1,013) completed online questionnaires 3-4 months (Time 1) and 1 year (Time 2) post-shootings. We tested models predicting Time 2 grief reactions, exploring direct and indirect predictive effects of exposure variables (physical and social proximity) through hypothesized peritraumatic mediators (peritraumatic perceived threat to self or others) while controlling for Time 1 grief and posttraumatic stress (PTS) reactions, pretrauma vulnerabilities. Findings demonstrate that closer social proximity predicted higher levels of Time 2 grief, directly and indirectly through increasing peritraumatic perceived threat to others' safety. Physical proximity and peritraumatic threat to self did not predict Time 2 grief reactions. Implications for grief screening instruments and theory building research through identifying risk factors and causal mechanisms are discussed. PMID- 29017640 TI - Investigating the Risk of Date Rape by Auditory Status. AB - This exploratory study examines the impact of auditory status, gender, and prior sexual victimization on attitudes and behaviors related to date rape among undergraduate college students (n = 3,352) at a private university in the northeast. An abbreviated version of the College Date Rape Attitude and Behavior Survey (Lanier & Elliot, 1997) and the Sexual Experiences Survey (Koss, Gidycz, & Wisniewski, 1987) were employed. Findings indicated that Deaf and hard of hearing (DHH) students were more likely to experience negative sexual experiences than hearing students. No differences were found in rape-supportive attitudes by auditory status. The analysis also found that DHH students were more likely to engage in sexual behaviors that increase the risk of date rape than were hearing students. Finally, significant differences were found regarding gender and prior sexual victimization on rape attitudes and behaviors. Implications and directions for future research are discussed. PMID- 29017641 TI - Family Matters: Examining Child Abuse and Neglect as Family Dysfunction for Minority Youth Living in Extreme Poverty. AB - Two competing models of child abuse and neglect (scapegoat vs. family dysfunction) are used to illustrate how the specification of victims ("index" victim vs. all children in household) from incidents of child abuse and neglect can be used to improve estimates of maltreatment for at-risk minority youth. Child Protection Services records were searched in 2005 for 366 "index" victims who were surveyed for 5 consecutive years (from 1998 to 2002) for the Mobile Youth Survey as well as other siblings in the household. The findings indicate that the baseline estimate of any maltreatment, sexual abuse, physical abuse, and neglect increased by 68%, 26%, 33%, and 74%, respectively, after adjusting for incidents that involved multiple victims (i.e., maltreatment as family dysfunction). In addition, the baseline estimate of more severe (indicated) incidents of physical abuse and neglect increased by 67% and 64%, respectively, after accounting for incidents that involved multiple victims, but there were no incidents of more severe (indicated) sexual abuse that involved multiple victims. Similarly, baseline estimates of age of onset (or chronicity) of maltreatment during childhood and adolescence increased by 62% and 26%, respectively. Baseline estimates for youth with 3 or more years of maltreatment and youth with 3 or more incidents of maltreatment both increased by about 71%. The implications of these findings for policy and practice as well as areas for future research are also discussed. PMID- 29017642 TI - Random Acts of Violence? Examining Probabilistic Independence of the Temporal Distribution of Mass Killing Events in the United States. AB - Recent mass killings, such as those in Newtown, Connecticut, and Aurora, Colorado, have brought new attention to mass killings in the United States. This article examines 323 mass killings taking place between January 1, 2006, and October 4, 2016, to assess how they are distributed over time. In particular, we find that they appear to be uniformly distributed over time, which suggests that their rate has remained stable over the past decade. Moreover, analysis of subsets of these mass killings sharing a common trait (e.g., family killings, public killings) suggests that they exhibit a memoryless property, suggesting that mass killing events within each category are random in the sense that the occurrence of a mass killing event does not signal whether another mass killing event is imminent. However, the same memoryless property is not found when combining all mass killings into a single analysis, consistent with earlier research that found evidence of a contagion effect among mass killing events. Because of the temporal randomness of public mass killings and the wide geographic area over which they can occur, these results imply that these events may be best addressed by systemic infrastructure-based interventions that deter such events, incorporate resiliency into the response system, or impede such events until law enforcement can respond when they do occur. PMID- 29017643 TI - [Chinese consensus on CPR and American guidelines on CPR]. AB - OBJECTIVE: In the article, we compared "2016 national consensus on cardiopulmonary resuscitation in China" and "2015 American Heart Association guidelines on cardiopulmonary resuscitation and emergency cardiovascular care" with their definition, orientation, characterization, quantifying and thinking mode. Chinese consensus on cardiopulmonary resuscitation (CPR) emphasizes the concept of "survival cycle" and focuses on the victim, it defines the rate of survival in its broad sense, and the thinking mode of the document is typically oriental style. However, American guidelines on CPR emphasize the concept of "survival chain" and the rescuer, it defines the rate of survival in its narrow sense, and the thinking mode is western style. The Chinese consensus cited American guidelines as part of references, and specialized them locally according to the current situation in China. In Chinese consensus, the cycle of survival covers three periods, pre-arrest phase, intra-arrest phase and post-resuscitation phase. In the pre-arrest phase, "three-prevention" policies should be adopted, which are precaution, pre-identification and early warning. During intra-arrest phase, CPR should be carried out with "three-ways" strategies, which are standardization, diversification and individuation. The "three lives" general plans should be considered during the post-resuscitation phase, which are demutation, transcending and extension. Chinese consensus on CPR has provided an omnibearing, overall-process and three-dimensional program with Chinese wisdom. PMID- 29017644 TI - [Analysis of out-of-hospital emergency treatment for ventricular fibrillation between 2013 and 2016 in Shanghai]. AB - OBJECTIVE: To investigate the epidemiological features of out-of-hospital patients with ventricular fibrillation (VF) in Shanghai and to analysis factors associated with outcomes, and to provide evidence for improving the success rate of VF. METHODS: The data of patients with VF admitted to Shanghai Medical Emergency Center from January 2013 to December 2016 were analyzed retrospectively. All the data were recorded including the clinical data, medical service time, return of spontaneous circulation (ROSC) at scene/en route, survival to hospital discharge. Factors that associated with successful resuscitation were analyzed by Logistic regression. RESULTS: From 2013 to 2016, 21 096 patients with suspected cardiac arrest were admitted to the Shanghai Medical Emergency Center. After excluding ventricular tachycardia (13 cases) and ventricular asystole (20 995 cases), 88 patients with VF were enrolled, with 62 male and 26 female; the average age was (63.22+/-16.15) years old. While bystander cardiopulmonary resuscitation (CPR) was performed in only 21 cases (23.86%). Fifty-seven cases occurred during the day (08:00-20:00), while 31 cases occurred in the night. And the average emergency response time was (6.47+/-4.13) minutes; the average on-site time was (14.76+/-10.88) minutes; the average transport to hospital time was (5.95+/-4.00) minutes. There were no significant differences in response time, on-site time and transport to hospital time each year, and there were no significant differences in emergency medical service time between day and night either. From 2013 to 2016, prehospital successful resuscitation rate was decreased by years [95.65% (22/23), 87.50% (14/16), 83.33% (20/24) vs. 80.00% (20/25), respectively, chi2 = 1.895, P = 0.595]. Survival to hospital discharge rate was increased by years [21.74% (5/23), 31.25% (5/16), 37.50% (9/24), 40.00% (10/25), respectively, chi 2 = 2.862, P = 0.413]. The success rate of prehospital resuscitation for patients with 1, 2, >=3 defibrillation was 35.23% (31/88), 23.08% (12/52), 89.19% (33/37), respectively (chi2 = 42.811, P = 0.000). The on-site time in successful final resuscitation group was shorter than that in final resuscitation failure group (minutes: 10.85+/-8.83 vs. 16.79+/-11.36, t = 2.367, P = 0.020), the ROSC time in successful final resuscitation group was shorter than that of final resuscitation failure group (minutes: 3.24+/-3.17 vs. 7.43+/-6.64, t = 3.175, P = 0.002). It was shown by Logistic regression that long ROSC time was the risk factor for final resuscitation failure [odds ratio (OR) = 0.771, P = 0.024]. Gender, age, availability of witnesses CPR, call time, emergency response time, on-site time and transport to hospital time had no significant impact on the prehospital successful resuscitation and final successful resuscitation. In prehospital successful resuscitation group, there was significant difference in survival to hospital discharge rate among different defibrillation times group [48.39% (15/31), 58.33% (7/12) vs. 21.21% (7/33), chi2 = 7.460, P = 0.024]. CONCLUSIONS: From 2013 to 2016, there were no significant changes in the emergency response time, prehospital successful resuscitation rate and survival to hospital discharge rate of patients with VF in Shanghai. Though, repeated defibrillation could significantly increased prehospital successful resuscitation rate, multiple defibrillation indicated decline of survival to hospital discharge rate in prehospital successful resuscitation group. Additionally, long on-site time and long ROSC time indicated poor prognosis. PMID- 29017645 TI - [Effect of regional synergistic treatment system on the treatment time and short term prognosis of ST-segment elevation myocardial infarction]. AB - OBJECTIVE: To explore the effect of regional synergistic treatment system on the treatment time and short-term prognosis of patients with ST-segment elevation myocardial infarction (STEMI). METHODS: A retrospective analysis of the clinical data of STEMI patients who admitted to emergency center of Suzhou Kowloon Hospital Affiliated to Shanghai Jiaotong University School of Medicine and underwent primary percutaneous coronary intervention (PPCI) from January 2013 to January 2017 were conducted. All patients were divided into two groups, group A was the patients who underwent the PPCI before the establishment of the acute chest pain area co-treatment system (from January 2013 to December 2014), and group B was the patients who received the treatment after the establishment of the area co-treatment system (from January 2015 to January 2017). The length of time from onset of symptoms to the balloon dilatation (S2B), the length of time from the first medical contact to the balloon dilatation (FMC2B), the length of time from entering the gate of hospital to the balloon dilatation (D2B), and the incidence of 90-day end point events (including heart failure, all-cause death, and other related adverse events) were collected. The relations of the establishment of the acute chest pain area co-treatment system and the incidence of 90-day end point events were analyzed by multivariable Logistic regression analysis. RESULTS: Among the 221 enrolled patients with STEMI, 83 patients were in group A and 138 patients were in group B respectively. Compared with group A, S2B time [minutes: 180 (140, 210) vs. 201 (154, 225)], FMC2B time [minutes: 89 (78, 100) vs. 94 (83, 107)] and D2B time [minutes: 66 (62, 70) vs. 85 (72, 99)] were significantly shortened in group B (all P < 0.05), the incidence of 90-day end point events were significantly decreased (heart failure: 20.3% vs. 32.5%, all-cause death: 1.4% vs. 7.2%, other related adverse events: 23.2% vs. 36.1%, all P < 0.05). It was shown by multivariable Logistic regression analysis that the establishment of the acute chest pain area co-treatment system could lower the incidence of 90-day end point events [heart failure: odds ratio (OR) = 1.904, 95% confidence interval (95%CI) = 0.968-1.004, P = 0.048; all-cause death: OR = 11.724, 95%CI = 0.955-1.048, P = 0.013; other related adverse events: OR = 1.925, 95%CI = 1.049-3.530, P = 0.034]. CONCLUSIONS: The construction of regional synergistic treatment system can shorten the emergency treatment time of STEMI patients and reduce the incidence of 90-day end point events including heart failure and death. PMID- 29017646 TI - [Pre-hospital therapeutic hypothermia for survival and neuro-protection after out of-hospital cardiac arrest: a systematic review and Meta-analysis of randomized controlled trials]. AB - OBJECTIVE: To assess the effectiveness of pre-hospital therapeutic hypothermia after out-of-hospital cardiac arrest (OHCA) for survival and neuro-protection. METHODS: Databases such as Medline, ScienceDirect, Embase, Highwire, Cochrane Library, CNKI and Wanfang digital database were searched from January 2000 to March 2017 to retrieve randomized controlled trials (RCTs) on pre-hospital therapeutic hypothermia after OHCA. Thereafter, the studies retrieved were screened based on predefined inclusion and exclusion criteria. Data were extracted and the quality of the included studies was evaluated. A Meta-analysis was performed using the Cochrane Collaboration RevMan 4.3 software. Analysis of publication bias was depicted by funnel plot. RESULTS: Eight studies involving 3 555 cases were included, among which 1 804 cases were assigned to the treatment group and 1 751 cases to the control group. Meta-analysis showed that compared with in-hospital therapeutic hypothermia, pre-hospital therapeutic hypothermia did not improve the survival rate of patients with OHCA [odds ratio (OR) = 1.00, 95% confidence interval (95%CI) = 0.85-1.18, P = 0.99], and neurological outcome at hospital discharge (OR = 0.97, 95%CI = 0.80-1.16, P = 0.71), but the body temperature was significantly lowered at admission [weighted mean difference (SMD) = -0.88, 95%CI = -1.03 to -0.73, P < 0.000 01]. The funnel plot suggested that there was no publication bias in the 8 studies. But due to the low number of studies, the publication bias could not be completely excluded. CONCLUSIONS: Pre hospital therapeutic hypothermia after OHCA can decrease temperature at hospital admission, but cannot increase the survival rate and neurological outcome at hospital discharge. PMID- 29017647 TI - [Early evaluation of patients with amplitude-integrated electroencephalogram on brain function prognosis after cardiopulmonary cerebral resuscitation]. AB - OBJECTIVE: To explore the characteristic of early evaluation of patients with amplitude-integrated electroencephalogram (aEEG) on brain function prognosis after cardiopulmonary cerebral resuscitation (CPCR). METHODS: A retrospective analysis of the clinical data of patients with adult CPCR in intensive care unit (ICU) of Henan Provincial People's Hospital from March 2016 to March 2017 was performed. The length of stay, recovery time, acute physiology and chronic health evaluation II (APACHE II) score, aEEG and Glasgow coma scale (GCS) within 72 hours were recorded. The main clinical outcome was the prognosis of brain function (Glasgow-Pittsburgh cerebral performance category, CPC) in patients with CPCR after 3 months. Relationship between aEEG and GCS and their correlation with brain function prognosis was analyzed by Spearman rank correlation analysis. The effects of aEEG and GCS on prognosis of brain function were evaluated by Logistic regression analysis. The predictive ability of aEEG and GCS for brain function prognosis was evaluated by receiver operating characteristic (ROC) curve. RESULTS: A total of 31 patients with CPCR were enrolled, with 18 males and 13 females; mean age was (41.84+/-16.96) years old; recovery time average was (19.42+/-10.79) minutes; the length of stay was (14.84+/-10.86) days; APACHE II score 19.29+/-6.42; aEEG grade I (normal amplitude) in 7 cases, grade II (mild to moderate abnormal amplitude) in 13 cases, grade III (severe abnormal amplitude) in 11 cases; GCS grade I (9-14 scores) in 7 cases, grade II (4-8 scores) in 14 cases, grade III (3 scores) in 10 cases; 19 survivals, 12 deaths; the prognosis of brain function was good (CPC 1-2) in 8 cases, and the prognosis of brain function was poor (CPC 3-5) in 23 cases. There was no significant difference in age, gender, recovery time, length of stay and APACHE II score between two groups with different brain function prognosis, while aEEG grade and GCS grade were significantly different. Cochran-Armitage trend test showed that the higher the grade of aEEG and GCS, the worse the prognosis of CPCR patients (both P-trend < 0.01). With the increase in GCS classification, the classification of aEEG was also increasing (r = 0.620 6, P = 0.000 3). Both aEEG and GCS were positively correlated with the prognosis of brain function (r1 = 0.779 6, P1 < 0.000 1; r2 = 0.702 1, P2 < 0.000 1). Univariate Logistic regression analysis showed that aEEG and GCS had significant effect on early brain function prognosis [aEEG: odds ratio (OR) = 37.234, 95% confidence interval (95%CI) = 3.168-437.652, P = 0.004, GCS: OR = 12.333, 95%CI = 1.992-76.352, P = 0.007]; after adjusting for aEEG and GCS, only aEEG had significant effect on the early prognosis of brain function (OR = 26.932, 95%CI = 1.729-419.471, P = 0.019). The ROC curve analysis showed that in the evaluation of the prognosis of CPCR patients with brain function, the area under ROC curve (AUC) of aEEG was 0.913, when the cut-off value of aEEG was 1.5, the sensitivity was 95.7% and the specificity was 75.0%. The AUC of GCS was 0.851, the best cut-off value was 1.5, the sensitivity was 91.3% and the specificity was 62.5%. CONCLUSIONS: aEEG and GCS scores have a good correlation in the evaluation of brain function prognosis in patients with CPCR, the accuracy of aEEG in the early evaluation of the prognosis of patients with CPCR is higher than the GCS score. PMID- 29017648 TI - [Neurological prognostic value of gray-white-matter ratio in patients after respiratory and cardiac arrest]. AB - OBJECTIVE: To evaluate the role of gray-white-matter ratio (GWR) on neurological outcome in patients with coma after cardiopulmonary resuscitation (CPR) post respiratory and cardiac arrest (CA). METHODS: Respiratory and CA patients with restoration of spontaneous circulation (ROSC) and coma after CPR admitted to Nanjing Drum Tower Hospital Clinical Medical College of Nanjing Medical University from February 2013 to June 2016 were enrolled. All patients were subjected to target temperature management (TTM) after CPR, and received cranial CT within 5 days after ROSC. Attenuation (hounsfield units) was measured at special sites (basal ganglia, centrum semiovale), and specific locus (caudate nucleus, put amen, corpus callosum, posterior limb of internal capsule, medial cortex, medial white matter). The GWR was calculated for basal ganglia and cerebrum. Neurological outcome was judged according to the Glasgow-Pittsburgh cerebral performance category (CPC) at 3 months after ICU discharge. CPC 1-3 were divided into good prognosis, CPC 4-5 were divided into poor prognosis. The receiver-operating characteristic (ROC) curve was drawn to evaluate the prognostic value of GWR in patients with respiratory and CA. RESULTS: Forty-three patients were enrolled, including 26 males and 17 females; age (63+/-15) years old; 14 good prognosis and 29 poor prognosis. Compared with the good prognosis group, the basal ganglia GWR (GWRbg) and the average GWR (GWRav) were significantly lowered in the poor prognosis group (1.064+/-0.103 vs. 1.163+/ 0.818, 1.068+/-0.087 vs. 1.128+/-0.071, both P < 0.05), the centrum semiovale GWR (GWRce) was similar to that in the good prognosis group (1.072+/-0.077 vs. 1.092+/-0.075, P > 0.05). It was shown by ROC curve analysis that the GWRbg, GWRav could evaluate the neurological outcomes of patients, but GWRce could not. The area under the ROC curve (AUC) of GWRbg was 0.756 [95% confidence interval (95%CI) = 0.607-0.905, P = 0.007], the cut-off value was 1.13, the sensitivity was 71.4%, and specificity was 69.0%; the AUC of GWRav was 0.701 (95%CI = 0.532 0.869, P = 0.035), the cut-off value was 1.13, the sensitivity was 71.4%, and specificity was 65.5%; the AUC of GWRce was 0.590 (95%CI = 0.405-0.775, P = 0.344). CONCLUSIONS: Respiratory and CA patients receiving TTM with high GWR had favorable neurological outcome. GWR, especially GWRbg could provide help for clinical treatment and prognostic value of survival after CA. PMID- 29017649 TI - [Usefulness of procalcitonin for the diagnosis of infection in cardiac surgical patients]. AB - OBJECTIVE: To determine the value of procalcitonin (PCT) as an early marker of postoperative infection after cardiac surgery with cardiopulmonary bypass (CPB). METHODS: A retrospective study was conducted. Patients with systemic inflammatory response syndrome (SIRS) after cardiac surgery with CPB admitted to intensive care unit (ICU) of Peking Union Medical College Hospital from November 2014 to January 2017 were enrolled. The cardiac surgery types and intraoperative conditions, the treatments in ICU, postoperative 28-day mortality and hospital mortality of the patients; the levels of plasma PCT measured at ICU admission, postoperative 1, 3, and 5 days were collected. According to whether patients with postoperative infection or not, they were divided into infection group and non infection group. Receiver operating characteristic curve (ROC) was used to analyze the predictive value of plasma PCT levels at different time points in patients with infection. RESULTS: Eighty-two patients were included in this study, 25 (30.5%) had microbiological evidence of pneumonia. The levels of plasma PCT were increased with a peak 1 day after cardiac surgery in all patients, then significantly decreased 5 days after operation. Compared with patients without infection, the levels of plasma PCT were significantly increased in patients with infection at immediate and 1, 3, 5 days post operation in ICU [MUg/L: 10.0 (6.0, 64.5) vs. 5.0 (1.0, 10.0), 31.0 (10.0, 116.2) vs. 5.0 (1.0, 10.0), 34.7 (10.0, 60.4) vs. 2.9 (0.7, 9.3), 15.8 (7.7, 29.4) vs. 0.7 (0.5, 2.6), all P < 0.01]. The area under the ROC curve (AUC) of the plasma PCT levels at ICU admission, and 1, 3, 5 days thereafter to predict infection for critically ill patients with SIRS after CPB was 0.77, 0.82, 0.86, and 0.91, respectively (all P < 0.01), cut-off values were 6.8, 9.4, 9.2 and 3.9 MUg/L, with the sensitivities of 76.0%, 84.0%, 79.2%, and 88.0%, and the specificities of 66.7%, 68.4%, 75.4%, and 78.9%, respectively. CONCLUSIONS: In the presence of SIRS, elevated plasma PCT levels correlated with evidence of infection in early stage post operation in the ICU patients after cardiac surgery with use of CPB. The level of plasma PCT exceeded the cut-off value in different time points, suggesting infection, and it is helpful to predict the occurrence of infection early after operation. PMID- 29017650 TI - [Effect of dynamin-related protein 1 in rats with myocardial ischemia/reperfusion injury]. AB - OBJECTIVE: To investigate the protective effect of dynamin-related protein 1 (Drp1) in rats with myocardial ischemia/reperfusion injury (IRI). METHODS: Twenty four healthy male Wistar rats were randomly divided into three groups (n = 8 each): sham group, IRI model group, and Drp1 inhibitor group. The left anterior descending branch of coronary artery was ligated to produce myocardial ischemia for 30 minutes and reperfusion injury model. Sham group was received only threading without ligation. The Drp1 inhibitor group was injected with 1.2 mg/kg mitochondrial division inhibitor 1 (mdivi-1) at 15 minutes before operation. At 3 hours after reperfusion, hemodynamics, serum myocardial enzymes, mitochondrial membrane potential (MMP), hydrogen peroxide (H2O2), reactive oxygen species (ROS) and ATP production were measured in rats. The myocardial tissues were harvested for the determination of the area at risk (AAR) and the infarct area (AI), and the ratio of AI/AAR was calculated. The expression of Drp1 and cytochrome C (Cyt C) was determined by Western Blot. RESULTS: Compared with the sham group, the left ventricular end diastolic pressure (LVEDP), cardiac troponin I (cTnI), MB isoenzyme of creatine kinase (CK-MB), lactate dehydrogenase (LDH), AI/AAR, H2O2, ROS, protein expression of Drp1 and Cyt C were significantly increased, left ventricular end systolic pressure (LVESP), ejection fraction (EF), fractional shortening (FS), MMP, ATP generation, expression of mitochondrial Cyt C were significantly decreased in IRI model group. Compared with IRI model group, LVEDP was significantly decreased in Drp1 inhibitor group [mmHg (1 mmHg = 0.133 kPa): 8.83+/-1.20 vs. 16.48+/-1.80], LVESP, EF, FS were significantly increased [LVESP (mmHg): 116.80+/-9.78 vs. 87.80+/-8.82, EF: 0.78+/-0.11 vs. 0.58+/-0.07, FS: (48.6+/-4.1)% vs. (32.4+/-3.2)%]; myocardial enzymes, H2O2 and ROS were significantly decreased in Drp1 inhibitor group [cTnI (ng/L): 31.9+/-8.8 vs. 49.2+/-13.7, CK-MB (U/L): 4.83+/-1.30 vs. 7.48+/-2.20, LDH (U/L): 1 327.80+/ 280.20 vs. 1 858.80+/-324.80, H2O2: 6.40+/-1.40 vs. 8.90+/-1.50, ROS: 41 916.3+/ 6 295.3 vs. 65 182.6+/-3 777.8], AI/AAR was significantly decreased (0.38+/-0.01 vs. 0.62+/-0.01), MMP and ATP were significantly increased [MMP: 0.78+/-0.13 vs. 0.38+/-0.07, ATP (MUmol/g): 150.8+/-12.3 vs. 103.7+/-8.4], the expression of Drp1 was significantly decreased (0.50+/-0.02 vs. 0.79+/-0.05), expression of mitochondria Cyt C was significantly increased (0.64+/-0.04 vs. 0.21+/-0.01), and expression of cytoplasmic Cyt C was significantly decreased (0.48+/-0.03 vs. 0.78+/-0.04), and the differences were statistically significant (all P < 0.05). CONCLUSIONS: Mitochondrial fission was excessively high during IRI, and its function was significantly decreased. Drp1 inhibitor could inhibit the division of mitochondria, and improve its function and cardiac function. PMID- 29017651 TI - [Influence of Rhubarb extract on the expression of NGAL and IL-18 in the kidney of rabbits after CPR]. AB - OBJECTIVE: To study the preventive effect and mechanism of Rhubarb extract on renal injury after cardiopulmonary resuscitation (CPR) in rabbits with cardiac arrest (CA). METHODS: Twenty-four male Japanese big-ear rabbits were divided into sham operation group, CPR model group and Rhubarb pretreatment group by random number table method, with 8 rabbits in each group. The rabbits in Rhubarb pretreatment group were treated with Rhubarb extract 5 mL*kg-1*d-1 for 7 days; and those in sham operation group and CPR model group were fed with 0.9% normal saline 10 mL/d for 7 days. After 7 days, ventricular fibrillation (VF) was produced in CPR model group and Rhubarb pretreatment group by 50 V alternating currents stimulation through bottom of the heart leads to the apex to prepare CPR model. The rabbits of the CPR model group and Rhubarb pretreatment group were sacrificed at 2 hours after successful resuscitation, and the animals in the sham operated group were sacrificed directly after anesthesia. The levers of blood urea nitrogen (BUN) and creatinine (Cr) in serum were examined by automatic biochemical analyzer. The positive expression area of neutrophil gelatinase associated lipocalin (NGAL) and interleukin-18 (IL-18) in kidney were examined by immunohistochemistry. RESULTS: Compared with the sham operation group, the levels of BUN and Cr were significantly increased in the CPR model group and Rhubarb pretreatment group [BUN (mmol/L): 15.53+/-3.90, 10.51+/-3.16 vs. 7.03+/-2.23, Cr (MUmol/L): 137.20+/-12.23, 86.80+/-7.67 vs. 66.39+/-5.47, both P < 0.05]. Compared with the CPR model group, the levels of BUN and Cr were significantly decreased in the Rhubarb pretreatment group [BUN (mmol/L): 10.51+/-3.16 vs. 15.53+/-3.90, Cr (MUmol/L): 86.80+/-7.67 vs. 137.20+/-12.23, both P < 0.05]. Immunohistochemical staining showed that the expression of NGAL and IL-18 mainly existed in glomerular and tubular cells in patina. Compared with the sham operation group, the positive expression areas of NGAL and IL-18 in kidney were significantly increased in the CPR model group and Rhubarb pretreatment group [NGAL (MUm2): 208.26+/-7.58, 136.74+/-5.33 vs. 98.93+/-7.83, IL-18 (MUm2): 256.48+/-4.64, 113.22+/-6.98 vs. 77.06+/-6.47, all P < 0.05]. Compared with the CPR model group, the positive expression areas of NGAL and IL-18 were significantly decreased in the Rhubarb pretreatment group [NGAL (MUm2): 136.74+/ 5.33 vs. 208.26+/-7.58, IL-18 (MUm2): 113.22+/-6.98 vs. 256.48+/-4.64, both P < 0.05]. CONCLUSIONS: CA can lead to acute kidney injury (AKI). Rhubarb extract can reduce the expression of NGAL and IL-18 in kidney of rabbits after CPR, and protect the kidney after CPR. PMID- 29017652 TI - [Hydrogen can alleviate post-cardiac arrest myocardium injury in rabbits]. AB - OBJECTIVE: To investigate the effects of hydrogen (H2) on myocardium injury post cardiac arrest (CA) in rabbits. METHODS: Sixty New Zealand rabbits were randomly divided into H2 treatment group (n = 30) and control group (n = 30) by random number table. The rabbit CA model was established by means of electrical stimulation of external membrane, both groups were mechanically ventilated. Cardiopulmonary resuscitation (CPR) was performed after 6 minutes of nonintervention, and stopped after restoration of spontaneous circulation (ROSC). Inhalation of 2% H2 gas was conferred to rabbits immediately at the end of CA modeling for 72 hours in H2 treatment group. Air was given to rabbits in control group instead. The survival rate of rabbits was analyzed. Heart rate, ventricular premature beat frequency, and the levels of blood samples cardiac troponin I (cTnI), left ventricular ejection fraction (LVEF), B-type natriuretic peptide (BNP), and blood lactic acid (Lac) were collected before CA and after ROSC in all rabbits. Rabbits were sacrificed and microstructure injury was observed by electric microscope after ROSC 72 hours. RESULTS: There were 28 animals ROSC in both groups; the survival number in H2 treatment group was higher than that in control group at 72 hours after ROSC (number: 15 vs. 7, chi2 = 4.791, P = 0.029). In the early stage of ROSC, the heart rate of two groups slowed down, the number of premature ventricular increased, and then gradually recovered; the heart rate in H2 treatment group was returning to normal more quickly than that in control group at 48 hours after ROSC (bpm: 319+/-63 vs. 362+/-40, P < 0.05); the ventricular premature beat frequency was lower than that in control group at 72 hours after ROSC (times per minutes: 9.1+/-4.3 vs. 15.0+/-8.0, P < 0.05). The animals of two groups had different degrees of myocardial damage and cardiac insufficiency after ROSC, and restored with the extension of time. Compared with control group, the level of BNP in H2 treatment group was significant decreased at 24 hours after ROSC (ng/L: 385+/-98 vs. 488+/-174, P < 0.05), the levels of cTnI and Lac were significant decreased at 48 hours after ROSC [cTnI (MUg/L: 1.83+/-0.68 vs. 2.83+/-0.98, Lac (mmol/L): 5.5+/-1.6 vs. 7.9+/-2.6, both P < 0.01], the LVEF was slightly higher than that at 72 hours after ROSC (0.690+/ 0.040 vs. 0.650+/-0.041, P = 0.051). Compared with control group, less damage to myocardial ultra structure was found in H2 treatment group at 72 hours after ROSC. CONCLUSIONS: Inhalation of H2 alleviates cardiac dysfunction and myocardial injury after CPR. PMID- 29017653 TI - [Effects of HMGB1 inhibition on endoplasmic reticulum stress after myocardial ischemia/reperfusion injury in rats]. AB - OBJECTIVE: To investigate the effect of high mobility group protein B1 (HMGB1) inhibition on endoplasmic reticulum stress (ERS) after myocardial ischemia/reperfusion (I/R) in rats. METHODS: Forty male Sprague-Dawley (SD) rats were randomly divided into four groups (n = 10): sham operation group, I/R model group, Gene silencing (HMGB1-siRNA) group, and empty vector (Scrambled-siRNA) group. Coronary blood flow of the rats were ligated for 30 minutes, relaxed the ligament line for 2 hours, to establish I/R injury model; not ligation with the sham operation group. Each group was injected 1 mL phosphate buffer (PBS), HMGB1 siRNA mixture or Scrambled-siRNA mixture preoperative by tail vein 0 hour, 12 hours, and 24 hours before surgery. After 2 hours reperfusion, the levels of tumor necrosis factor-alpha (TNF-alpha), interleukins (IL-6, IL-8) in the serum were detected by enzyme linked immunosorbent assay (ELISA); the expression of HMGB1 protein in myocardium was detected by immunohistochemistry; the protein and mRNA expressions of HMGB1, GRP78, CHOP and caspase-12 in myocardium were detected by Western Blot and real-time fluorescence quantitative reverse transcription polymerase chain reaction (RT-PCR). RESULTS: Compared with sham operation group, the levels of serum inflammatory factor, HMGB1 positive cells, and the protein and mRNA expressions of GRP78, CHOP, caspase-12 were significantly increased in I/R model group. The levels of serum inflammatory factor in HMGB1-siRNA group were significantly lower than those in the I/R model group [TNF-alpha (ng/L): 783.4+/-203.4 vs. 963.9+/-214.1, IL-6 (ng/L): 358.8+/-94.8 vs. 452.3+/-103.7, IL 8 (ng/L): 180.5+/-73.6 vs. 347.3+/-90.3, all P < 0.05], HMGB1 positive cells, and the protein and mRNA expressions of GRP78, CHOP, caspase-12 in HMGB1-siRNA group were significantly lower than I/R model group (HMGB1 protein: 1.59+/-0.26 vs. 3.21+/-0.40, GRP78 protein: 2.59+/-0.28 vs. 4.21+/-0.42, CHOP protein: 2.01+/ 0.23 vs. 3.21+/-0.43, caspase-12 protein: 1.48+/-0.22 vs. 3.01+/-0.48; HMGB1 mRNA: 2.35+/-0.26 vs. 4.67+/-0.45, GRP78 mRNA: 6.59+/-0.26 vs. 11.21+/-0.40, CHOP mRNA: 2.01+/-0.43 vs. 5.21+/-0.63, caspase-12 mRNA: 4.48+/-0.32 vs. 8.41+/-0.52, all P < 0.05). There was no significant difference between the Scrambled-siRNA group and the I/R model group. CONCLUSIONS: HMGB1 may be involved in the activation of ERS in myocardial I/R injury and increase the damage of myocardial cells. PMID- 29017654 TI - [Therapeutic effect of hesperidin on severe acute pancreatitis in rats and its mechanism]. AB - OBJECTIVE: To investigate the protective effect of hesperidin on severe acute pancreatitis (SAP) in rats and its related mechanism. METHODS: Sixty male Sprague Dawley (SD) rats were randomly divided into five groups (n = 12 in each group): sham group, SAP model group, dexamethasone group (5 mg/kg), low and high dose of hesperidin groups (10 mg/kg and 20 mg/kg). SAP rats were administered a retrograde infusion of 3.5% sodium taurocholate solution into the biliopancreatic duct after laparotomy. Sham rats were administered with equivalent saline. The treatment was intravenously injected 5 minutes after operation through femoral vein. After 24 hours, the survival of animals was observed, the level of serum amylase, the volume of ascites and the relative specific gravity of the pancreas were measured; the pathological changes of pancreatic tissue were observed by Hematoxylin-eosin (HE) staining; the levels of serum and pancreatic tissue interleukin (IL-1beta, IL-6) and tumor necrosis factor-alpha (TNF-alpha) were detected by enzyme linked immunosorbent assay (ELISA); the expression of Toll like receptor 4 (TLR4), the phosphorylation of IL-1 receptor associated kinase (IRAK1) and nuclear factor-kappaB (NF-kappaB) were detected by Western Blot. RESULTS: Compared with SAP model group, the 24-hour survival rate were increased in low and high dose of hesperidin groups (83.3%, 100% vs. 58.3%), the volume of ascites were reduced (mL: 7.36+/-0.91, 6.10+/-1.02 vs. 13.82+/-2.06), the levels of serum amylase were reduced (U/L: 1 081.48+/-78.23, 1 048.58+/-49.97 vs. 1 990.37+/-127.27), the relative specific gravity of the pancreas were reduced [(7.52+/-1.02)%, (5.59+/-0.96)% vs. (11.22+/-0.96)%], and the pathological damage of pancreatic tissue were reduced; the levels of serum and pancreatic tissue inflammatory factors were reduced in high dose hesperidin group [serum IL-1beta (ng/L): 68.08+/-10.49 vs. 130.30+/-23.35, IL-6 (ng/L): 63.88+/-10.47 vs. 158.41+/ 21.38, TNF-alpha (ng/L): 10.42+/-1.49 vs. 18.16+/-2.01; pancreas IL-1beta (pg/MUg): 13.87+/-1.84 vs. 20.08+/-1.66, IL-6 (pg/MUg): 21.90+/-3.12 vs. 38.13+/ 3.57, TNF-alpha (pg/MUg): 1.88+/-0.20 vs. 4.26+/-0.58]; the expression of TLR4, and the phosphorylation levels of IRAK1 and NF-kappaB were decreased in low and high dose of hesperidin groups (the sham operation group was 100, TLR4/beta actin: 91.9+/-15.6, 83.7+/-11.2 vs. 168.5+/-9.0, p-IRAK1/IRAK1: 117.4+/-7.6, 104.7+/-11.5 vs. 173.5+/-15.8, p-NF-kappaB p65/NF-kappaB p65: 119.9+/-9.3, 105.8+/-12.6 vs. 174.1+/-13.0), with statistically significant differences (all P < 0.05). The effects of dexamethasone were similar to that of high dose of hesperidin. CONCLUSIONS: Hesperidin could significantly protect SAP rats, and this protection was related to the inhibition of TLR4/IRAK1/NF-kappaB signaling pathway, and to the reduction of pro-inflammatory cytokine expressions. The effect of high dose hesperidin (20 mg/kg) was more significant. PMID- 29017655 TI - [Application of active immunization in the prevention of de novo hepatitis B virus infection after pediatric liver transplantation with HBcAb positive donor liver]. AB - OBJECTIVE: To investigate the effect of active immunization on prevention of post transplantation de novo hepatitis B virus (HBV) infection in patients receiving liver grafts from hepatitis B core antibody (HBcAb) positive donors. METHODS: A retrospective analysis was conducted. Eighty-seven children undergoing liver transplantation from HBcAb positive donors admitted to Tianjin First Center Hospital from October 2012 to December 2016 were enrolled, and the data of donors and recipients were collected. The hepatitis B vaccine was given before operation for hepatitis B surface antibody (HBsAb) > 1 000 U/L; hepatitis B immunoglobulin (HBIG) 100 U/kg was given during the operation, in order to prevent children from HBV infected by obtaining passive immunity quickly, children with HBsAb < 200 U/L after operation were injected with hepatitis B vaccine for booster immunization. HBV markers and liver function of recipients were determined before liver transplantation and during the follow-up, which up to April 2017. According to the children got de novo HBV infection after operation or not, the preventive effect of active immunization before and after transplantation operation on HBV infection was analyzed and compared. RESULTS: In 87 children who received HBcAb positive donor livers, 9 (10.3%) developed de novo HBV infection, which occurred in 16 (10, 25) months after liver transplantation. Among the 9 children with HBV infection, 7 children had HBsAb < 1 000 U/L before the operation, the ratio was statistically increased as compared with the children without HBV infection [77.8% (7/9) vs. 37.2% (29/78), P < 0.05]. After the transplantation, 62 children of 78 without HBV infection showed a good response to hepatitis B vaccination, 1 child after inoculation of hepatitis B vaccine, the titer of HBsAb was still less than 200 U/L, 15 children without administration of hepatitis B vaccine, only with HBIG injection for prevention. The HBsAb of children with de nove HBV infection were less than 200 U/L after operation, the ratio was significantly increased as compared with children without HBV infection [100.0% (9/9) vs. 20.5% (16/78), P < 0.01]. CONCLUSIONS: The establishment of active immunization method can effectively prevent children with de novo HBV infection occurred in pediatric recipients from HBcAb positive donors with preventive treatment. PMID- 29017656 TI - [Development and construction mode of critical care medicine: 22 years of development and construction of intensive care units of Guizhou Medical University]. AB - OBJECTIVE: To provide decision-making basis for promoting the rapid and healthy development of critical care medicine/intensive care unit (ICU) through discussing the mode of development and construction of the department of ICU. METHODS: The situations of ICU of Affiliated Hospital of Guizhou Medical University from July 1994 to December 2016 were analyzed and summed up. Data of the situations in different development stages included the location and area of the ward, the number of beds, the number of physicians and nurses, the structure of academic titles and educational levels, the number of patients admitted to ICU per year, the proportion of patients used ventilator per year, the mortality, the mode of the discipline management, the number of medical postgraduates and undergraduates trained in the ICU, the number of teaching hours, the achievements, the number of research projects, the number of published monographs and papers, the number of the multicenter trials that we participated in, the construction of the team, the personal honor, and so on. RESULTS: From 1994 to 2016, the department of ICU had three development stages: the initial development stage of the discipline (from July 1994 to March 2005), the standardization development stage of the discipline (from April 2005 to December 2015), the acceleration development stage of the discipline (from December 2015 to December 2016). The scale of the department expanded from an open unit with 6 beds which was shared with the department of cardiothoracic surgery to 6 enclosed units with 90 beds which were managed independently by the intensivists. The area of the department increased from less than 300 m2 to more than 7 000 m2. There were 46 beds in the mixed ICU, which covered an area of 4 210 m2. There was only one physician in 1994 while the number of the physicians increased to 19 in 2016. The number of nurses increased from 4 in 1994 to 69 in 2016. The proportion of highly educated talents significantly increased. Furthermore, from 1994 to 2016, the number of beds increased from 6 to 46; the number of patients admitted to ICU per year increased from 138 to 1 080; and the number of patients used ventilator increased from 24 to 1 057. The mean acute physiology and chronic health evaluation II (APACHE II) score was > 24.0 at admission, while < 12.6 at discharge. From 1997 to 2016, a total of 79 postgraduates had studied in the department, and 390 teaching hours we had undertaken. From 2011 to 2016, a total of 250 undergraduates had studied in the department, and 540 teaching hours we had undertaken. From 1994 to 2016, 8 achievements were obtained, 22 projects were undertook, 4 monographs were published, 6 books were edited that the physicians in the ICU as key editors, 104 papers were published, and 8 national multicenter trials that the physicians in the ICU were as key participants, and multiple team and individual honors were obtained. CONCLUSIONS: The construction of ICU hardware is the basis and prerequisite for the development of the discipline and the construction of ICU software is the soul and motivation of the discipline. The operation indexes of clinical medical treatment, teaching and scientific researches reflect the overall operation status of the discipline and the hospital. PMID- 29017657 TI - [Comparative study for effects of bare-handed CPR with Thumper cardiopulmonary resuscitator CPR in emergency department based on "the Utstein style"]. AB - OBJECTIVE: To objectively and standardly compare the bare-handed CPR and Thumper cardiopulmonary resuscitation CPR recovery effect based on cardiopulmonary resuscitation (CPR) Utstein model. METHODS: A retrospective study was conducted. CPR adult patients admitted to the Emergency Room of First Hospital of Qinhuangdao in Hebei Province from January 2015 to January 2017 were enrolled. Seventy patients who underwent CPR using the Thumper cardiopulmonary resuscitator were included in the Thumper CPR group; 80 patients who underwent manual hand held CPR were included in the bare-handed CPR group. Return of spontaneous circulation (ROSC) and return of spontaneous breathing, and blood gas analysis indexes of recovery for 5 minutes and 15 minutes [arterial oxygen partial pressure (PaO2), arterial blood carbon dioxide partial pressure (PaCO2), arterial blood oxygen saturation (SaO2), blood lactic acid (Lac)] were collected. RESULTS: There was no significant difference in gender, age and cardiac arrest (CA) causes between the two groups. Compared with the bare-handed CPR group, the ROSC rate in the Thumper CPR group was significantly increased [68.57% (48/70) vs. 51.25% (41/80), chi2 = 4.642, P = 0.031], but there was no significant difference in return of spontaneous breathing rate [48.57% (34/70) vs. 47.50% (38/80), chi2 = 0.017, P = 0.896]. There was no significant difference in blood gas index between the two groups after 5 minutes of recovery. The PaO2 and SaO2 in the Thumper CPR group were significantly higher than those in the bare-handed CPR group [PaO2 (mmHg, 1 mmHg = 0.133 kPa): 88.13+/-5.06 vs. 84.26+/-5.53, SaO2: 0.828+/-0.068 vs. 0.766+/-0.031, both P < 0.05), PaCO2 and Lac were significantly lower than those in the bare-handed CPR group [PaCO2 (mmHg): 34.04+/-4.62 vs. 40.43+/-5.29, Lac (mmol/L): 6.90+/-2.07 vs. 8.50+/-2.12, both P < 0.05]. CONCLUSIONS: In the process of emergency rescue, Thumper cardiopulmonary resuscitator is more successful than bare-handed CPR. The recovery rate of Thumper cardiopulmonary resuscitator is more conducive to save manpower and obtain better metabolic effect, which is worthy of clinical promotion and application. PMID- 29017658 TI - [Effect of a stabilization device for maintaining the balance of a CPR performer during ambulance transportation on quality of CPR in out-of-hospital cardiac arrest: a prospective randomized controlled trial]. AB - OBJECTIVE: To investigate the effect of a stabilization device for maintaining the balance of a cardiopulmonary resuscitation (CPR) performer during ambulance transportation on quality of CPR in out-of-hospital cardiac arrest (OHCA). METHODS: A prospective randomized controlled trial was performed. 167 OHCA patients with cardiac arrest (CA) time < 10 minutes admitted to Cangzhou Central Hospital from October 2014 to January 2017 were enrolled, and divided into armed stabilization device group (n = 86) and unarmed stabilization device group (n = 81) by random number table. Restoration of spontaneous circulation (ROSC) rate, 24-hour survival rate and survival rate of discharge were evaluated. RESULTS: Compared with unarmed stabilization device group, ROSC rate (29.1% vs. 9.9%, chi2 = 9.691, P = 0.002), 24-hour survival rate (20.9% vs. 6.2%, chi2 = 7.649, P = 0.006) and survival rate of discharge (12.8% vs. 3.7%, chi2 = 4.485, P = 0.035) were significant increased in armed stabilization device group. CONCLUSIONS: CPR with stabilization device during ambulance transport could effectively ensure quality of CPR and improve prognosis in OHCA. Clinical Trial Registration: Chinese Clinical Trial Registry, ChiCTR-IPR-14005337. PMID- 29017659 TI - [Massive pulmonary embolism similar to acute myocardial infarction rescued by ECMO: a case report]. AB - Acute myocardial infarction (AMI) and acute massive pulmonary embolism can be characterized by no pulse electrical activity. Patients of cardiac arrest (CA) with no pulse electrical activity have a high mortality rate before the cause was corrected. Extracorporeal membrane oxygenation (ECMO), as a kind of artificial heart-lung support organ, provides treatment for CA patients. A case of massive pulmonary embolism similar to AMI was treated in the Third Central Hospital of Tianjin, who received interventional thrombolysis assisted by ECMO. Through the review of the overall development of the case, we aim to broaden the diagnosis and treatment of CA patients with no pulse electrical activity, and to improve the understanding of the complications secondary to ECMO. PMID- 29017660 TI - [Rhythm analysis in CPR]. AB - It's necessary to interrupt cardiopulmonary resuscitation (CPR) for a reliable automatic external defibrillator (AED) rhythm analysis, because the mechanical activity from the chest compressions introduces artifacts in the electrocardiogram (ECG) that substantially lower the capacity of an AED to judge cardio-electric rhythm. However, repeated interruptions of compression will reduce the quality of CPR, which in turn affect the prognosis of patients with cardiac arrest (CA). In order to improve the quality of CPR, reduce the interruptions of chest compression and implement accurate defibrillation, people have made many efforts on identifying ECG rhythm in CPR. The studies can be grouped into two broad categories: those based on the artificial mixture of ECG data and CPR artifacts and those based on CA data recorded during CPR. This article introduced researches for rhythm recognition in CPR, including sources and characteristics of CPR artifacts, methods of rhythm analysis, and provided a basis for the study of how to improve the accuracy of cardio-electric rhythm recognition. PMID- 29017661 TI - [Advances in the role of autophagy in acute pancreatitis]. AB - Autophagy is a self-protect cellular mechanism by which the unneeded cellular structure or impaired protein are targeted to degeneration. Acute pancreatitis (AP) is associated with autophagy tightly. This article is aimed to mainly elaborate the phenomenon that AP can be triggered by impaired autophagy and the mechanism of AP exacerbation by damaged autophagy. In AP, the reasons of impaired autophagy is dysfunction of cathepsins and lysosome associated membrane protein, which present as vacuoles accumulation in acinar cells and combination disorder of autophagolysosome, finally to activation of trypsin. By the relocation of high mobility group box 1 (HMGB1) and promotion of mitochondrial permeability transition (MPT), impaired autophagy aggravates AP. Understanding the above mechanism has certain significance to the prevention and treatment of AP. PMID- 29017662 TI - [Progresses of immunomodulatory therapy in sever acute pancreatitis]. AB - Severe acute pancreatitis (SAP) is accompanied with complex pathogenic course and high mortality. The imbalance of immune response is an important cause which leads the SAP patients to the severe situation and even death. The immunomodulatory therapy can regulate the imbalance of inflammation, alleviate SAP-associated organ injury, and improve the prognosis of patients. Previous immunomodulatory therapy had some problems, such as single-object and simple method. In recent years, some new methods of immunomodulatory therapy, such as regulating the apoptosis and mature of immune cells, applying of mesenchymal stem cells (MSCs) and multi-regulation methods, provide some new ideas and hopes for SAP therapy. This paper reviewed the history and recent research progresses of SAP immunomodulatory therapy. PMID- 29017663 TI - [Research progress of frailty syndrome in critically ill elderly patients]. AB - Frailty syndrome is the core of the comprehensive geriatric assessment of the elderly, which affects the prognosis of elderly critical illness patients and becomes the hotspot of the current geriatric medical research of elderly patients. In critically ill elderly patients, the incidence rate of frailty syndrome is 21%-59%. Frailty syndrome is an independent risk factor in elderly patients with complications, short-term and long-term mortality. Moreover frailty is always accompanied by poor state and affects the health quality of these patients. In the field of critical care medicine in our country, the study of the frailty syndrome is still in its infancy. This article focuses on the research progress of frailty syndrome, and the assessment of the frailty critical illness elderly patients is helpful for the clinical doctors to determine the prognosis and treatment decision. PMID- 29017664 TI - Diabetes and Coronary Artery Disease: Role of Functional Imaging. PMID- 29017665 TI - Folic Acid Effect on Artemether-Induced Cardiac Anomalies in Mice Embryos. AB - OBJECTIVE: To determine the role of folic acid in preventing the adverse effects of artemether, on fetal heart in Albino mice. STUDY DESIGN: Experimental study. PLACE AND DURATION OF STUDY: Department of Anatomy, University of Health Sciences, Lahore, from July 2011 to January 2012. METHODOLOGY: Eighteen pregnant Albino mice were randomly divided into three groups A, B, and C of six mice each. The control group Awas treated with intramuscular injection of solvent arachis oil 10.7 mg/kg, group B was given intramuscular injection of artemether 10.7 mg/kg, and group C was given intramuscular injection of artemether 10.7 mg/kg and folic acid 4.93 mg/kg, dissolved in 0.1 ml. of distilled water orally, from 6th to 10th day of pregnancy. On 18th gestational day, the mice were sacrificed, and dissected to deliver live fetuses of group A(n=46), group B (n=16), and group C (n=20) were delivered. After dissection of the fetuses, the hearts were isolated and fixed in 10% formalin and processed in a usual way for histological examination with the light microscope after H&E staining, using X4, X10, and X40 objectives. The sections were evaluated for presence of septal defects, thickness of ventricular and atrial septa was calculated by micrometery. For statistical analysis, SPSS version 18 was used. RESULTS: Post-Hoc Tukey's test indicated statistically significant difference in mean atrial septal thickness between groups Aand B (p < 0.001), groups B and C (p=0.015), and insignificant difference between groups Aand C (p=0.178). There was statistically significant thinning of ventricular septa between groups Aand B (p < 0.001), groups B and C (p < 0.001), and groups Aand C (p < 0.001). CONCLUSION: Folic acid protected the toxic effects of artemether on the development of heart. PMID- 29017666 TI - Protective Effects of Nigella Sativaon Acetylsalicylic Acid-Induced Nephrotoxicity in Albino Rats. AB - OBJECTIVE: To see the effects of Nigella sativaon acetylsalicylic acid-induced nephrotoxicity in albino rats. STUDY DESIGN: An experimental study. PLACE AND DURATION OF STUDY: The Anatomy Department of University of Health Sciences, Lahore, from January 2014 to December 2015. METHODOLOGY: Thirty-two female albino rats were divided into four groups. Group A(control) was given single dose of 10 mg/100 gm body weight of 1% methylcellulose, orally. Group B and C were treated with oral 1000 mg/kg acetylsalicylic acid as a single dose. Group D was given 250 mg/kg ethanolic extract of Nigella sativa(NSE) by oral gavage followed by single dose of 1000 mg/kg acetylsalicylic acid on 1st day of experiment; after that only NSE was continued till 7 days. Animals of groups A, C and D were sacrificed on day 8 and that of group B on day 2 of experiment. Cardiac puncture was performed to draw blood from each animal for renal function tests. Animals were evaluated for gross (Paired kidney weight, body weight, relative tissue body weight index) as well as for biochemical (Serum urea and creatinine) parameters. RESULTS: Gross as well as biochemical parameters were markedly impaired in group B, but statistically significant improvement was noticed in Nigella sativatreated group. There was no self recovery in group C. CONCLUSION: Ethanolic extract of Nigella sativahas a protective role against acetylsalicylic acid-induced nephrotoxicity in albino rats. PMID- 29017667 TI - Supervisors' Perspective on Electronic Logbook System for Postgraduate Medical Residents of CPSP. AB - OBJECTIVE: To find out the perspective of the supervisors about the role of electronic logbook (E-Logbook) of College of Physicians and Surgeons, Pakistan (CPSP) in monitoring the training of postgraduate medical residents of CPSP. STUDY DESIGN: Descriptive cross-sectional study. PLACE AND DURATION OF STUDY: College of Physicians and Surgeons Pakistan (CPSP), Karachi, from May to October 2015. METHODOLOGY: An electronic computer-based questionnaire designed in Hypertext Preprocessor (PHP) language was distributed to the registered CPSPsupervisors through the e-log system. The questionnaire comprised of seven close ended questions. The data were entered and analyzed by SPSS version 20. Descriptive statistics were determined. RESULTS: Atotal of 1,825 supervisors responded to the questionnaire. Fifteen hundred and ninety-eight (87.6%) supervisors gave regular feedback for their trainees, 88.2% considered it a better monitoring tool than conventional logbook, 92.5% responded that e-logbook helped in the regular assessment of the trainees, 87.8% believe that quality of training will improve after introduction of e-logbook, 89.2% found e-logbook useful in implementation of outcome-based learning and 88.4% considered e-logbook user-friendly. The main reasons for not providing regular feedback included the supervisors not familiar to e-logbook interface, internet access problems, and busy schedules of supervisors. CONCLUSION: There was a wide acceptability of the e-log system among the supervisors with positive perception about its usefulness. The common reasons that hinder the provision of regular feedback include not being familiar to e-log interface, internet access problem, busy schedule and some consider using e-logbook a cumbersome task. These reasons can be alleviated to provide a better training monitoring system for the residents. PMID- 29017668 TI - Frequency of Her2/Neu Protein Expression in Ovarian Epithelial Cancers. AB - OBJECTIVE: To detect the frequency of Her-2/neu protein expression in epithelial ovarian cancers by immunohistochemistry. STUDY DESIGN: Descriptive cross sectional study. PLACE AND DURATION OF STUDY: Department of Pathology, King Edward Medical University, Lahore, from July 2014 to May 2015. METHODOLOGY: Fifty six cases diagnosed as epithelial ovarian cancer on histopathology were included in this study. Immunohistochemistry was performed to observe the pattern of HER2/neu protein expression in these cases. Association with age was determined by Chi-square test with significance at p<0.05. RESULTS: Out of these 56 cases, 38 (67.9%) were serous cystadenocarcinomas, 11 (19.6%) were endometrioid adenocarcinomas, 6 (10.7%) were mucinous cystadenocarcinomas and 1 (1.8%) was non Brenner transitional cell carcinoma. The mean age of patients was 49.61 +/-13.20 years with minimum and maximum ages of 21 years and 80 years, correspondingly. Twentyone (37.5%) out of 56 patients were found to overexpress Her-2/neu protein. CONCLUSION: Her-2/neu protein overexpression was observed in 21 (37.5%) patients. No statistically significant association was seen between age and Her-2/neu protein overexpression. PMID- 29017669 TI - Relationship of the Van Herick Grading System with Peripheral Iris Configuration and Level of Iris Insertion. AB - OBJECTIVE: To determine the relationship of the van Herick angle grading system with the level of iris insertion and peripheral iris configuration. STUDY DESIGN: Observational study. PLACE AND DURATION OF STUDY: Eye department, Combined Military Hospital, Malir Cantt., Karachi, from May to October 2015. METHODOLOGY: Sixty-five eyes of 65 patients were recruited. Anterior chamber depth at the temporal limbus was measured as a fraction of corneal section thickness using van Herick technique and graded on the standard 4-point scale of the van Herick grading system. Gonioscopy of the temporal quadrant was performed with a Posner 4 mirror goniolens and both the true level of iris insertion and peripheral iris configuration were recorded on a 4-point scale so as to equate with the van Herick 4-point grading system. Spearman's rho test was applied to determine the relationship of the van Herick grading system with level of iris root insertion and peripheral iris configuration. RESULTS: Amoderate positive correlation between van Herick grade and peripheral iris configuration was found which was statistically significant (rs=0.42, p < 0.001). Astatistically significant and moderate positive correlation was also detected between van Herick grade and the level of iris insertion (rs=0.45, p < 0.001). CONCLUSION: The van Herick grade has a moderately positive relationship with the peripheral iris configuration and true level of iris insertion. PMID- 29017670 TI - Visual and Topographical Outcomes Following Accelerated Trans-Epithelial Corneal Crosslinking in Progressive Keratoconus. AB - OBJECTIVE: To assess the visual and topographical outcomes following accelerated trans-epithelial corneal crosslinking (TE-CXL) in progressive keratoconus. STUDY DESIGN: Case series. PLACE AND DURATION OF STUDY: Laser Vision Centre, Karachi, from January 2015 to December 2016. METHODOLOGY: Forty-five eyes of 25 patients affected with progressive keratoconus and treated with accelerated TE-CXL with riboflavin (vitamin B2) and ultra-violet A(UV-A) irradiation were enrolled in this study. The visual outcome was measured by ETDRS chart as improvement in best corrected visual acuity (BCVA) of at least one line or more as compared to pre CXLBCVA. The topographical outcome was measured as decrease in maximum simulated keratometry values, astigmatism and spherical equivalent (SE) and an increase in central corneal thickness (CCT). K-max was defined as the steepest radius of curvature of the anterior corneal surface. SE was measured by subjective refraction, and K-max, astigmatism and CCTby scanning-slit corneal topography. Patients were followed-up 12 months post-treatment. RESULTS: At the end of follow ups, mean BCVAshowed improvement of one line from LogMAR 0.58 +/-0.067 to LogMAR 0.48 +/-0.077. Seven (15.5%) eyes showed two lines of improvement while 3 (6.7%) eyes showed worsening of one line in BCVA. The mean K-max flattened by 0.7D. Mean astigmatism and SE decreased up to -0.5D and -0.4D, respectively. Mean preoperative CCTwas 454.31 +/-36.34 um, whereas mean postoperative CCTwas 456.47 +/-35.60 um with an average increase of 2.15 um. No postoperative complications were reported. CONCLUSION: Based on topographical outcomes, accelerated TE-CXL is effective in preventing the progression of keratoconus without any safety concerns with improvement of vision in majority of cases. PMID- 29017671 TI - Could Red Cell Distribution Width be a Marker of Thyroid Cancer? AB - OBJECTIVE: To study red cell distribution width (RDW) values, a novel inflammatory marker in routine hemogram, of patients with benign or malignant thyroid nodules and to compare with healthy population. STUDY DESIGN: Descriptive study. PLACE AND DURATION OF STUDY: Abant Izzet Baysal University Hospital, Bolu, Turkey, from November 2015 and February 2017. METHODOLOGY: The hemogram values of patients undergone thyroid surgery for thyroid nodule between November 2015 and February 2017 were retrospectively analyzed, and compared to those in healthy subjects. Subjects with infectious or inflammatory diseases were excluded. Patients' characteristics and laboratory data were obtained from institutional computerized database. Preoperative hemogram values of thyroid nodule patients were recorded. One-way ANOVAand Kruskal-Wallis tests were performed to compare variables with significance at p<0.05. RESULTS: Median RDW of malignant nodule group was 15.8 (12.9-19.5) and was significantly higher than both of those in benign nodule (15) and control groups (14), (p<0.001). CONCLUSION: Elevated RDW in patients with thyroid nodules in preoperative period should alert the physician for possible malignancy and this cost-effective marker also can help support other modalities (ultrasound scan, and fine needle aspiration biopsy) to distinguish malignant from benign nodules. PMID- 29017672 TI - Surgical Outcome of Pancreaticoduodenectomy in Pancreatic and Periampullary Neoplasms. AB - OBJECTIVE: To report the results in the surgical treatment of pancreatic and periampullary neoplasms with emphasis on surgical technique, short-term postoperative outcome and the lessons learnt. STUDY DESIGN: Case series. PLACE AND DURATION OF STUDY: This study was carried out at Shaukat Khanum Memorial Cancer Hospital and Research Center, Lahore, from October 2014 to May 2016. METHODOLOGY: Patients undergoing surgical treatment of pancreatic and periampullary neoplasms were selected. Patients' characteristics including demographics, surgical technique, and 30-day morbidity and mortality were recorded. International Study Group of Pancreatic Fistula (ISGPF) classification was used to define postoperative pancreatic fistula and Clavien-Dindo classification to grade complications. RESULTS: Atotal number of 65 patients underwent the trial of dissection; 50 had pancreaticoduodenectomy and 15 patients underwent palliative bypass and were excluded from analysis. Sixty-four percent were males and 36% were females. The most common tumor was periampullary (n=29, 58%) followed by pancreatic head (14, 28%) and duodenal tumors (n=07, 14%). Mean age was 52.92 +/-13.27 years; mean operating time was 470 +/-358.28 minutes and median blood loss was 400 (287-500) ml. Pancreaticogastrostomy (PG) was the preferred reconstruction technique in 37 (74%) verses pancreaticojejunostomy (PJ) in 13 (26%) patients. Four (08%) patients needed portal vein reconstruction and two (04%) replaced right hepatic artery resection and reconstruction due to tumor involvement. There were seven Grade A, and one Grade B and C pancreatic fistulae each. Three patients (06%) needed endoscopic therapy for gastrointestinal hemorrhage from pancreatic stump. There was one death in postoperative period. CONCLUSION: Pancreaticoduodenectomy is a safe procedure with excellent postoperative outcome, if carried out in a specialized hepato-pancreato-biliary unit. APG reconstruction can be a safer alternative to PJ. PMID- 29017673 TI - Iatrogenic Gastrointestinal Perforation Following Therapeutic Endoscopic Procedures: Management and Outcome. AB - The aim of this study was to analyze the location, the cause and treatment of iatrogenic gastrointestinal perforations following therapeutic endoscopic procedures. Perforation occurred in 12 patients out of 3,389, giving cases occurred intraoperatively or postoperatively. Among them, 6 cases were closed by titanium clipping and 1 case by purse string suture. In another case after cap assisted endoscopic mucosal resection (EMRC), attempted titanium clipping failed, emergency surgery had to be performed. One each case, after Argon plasma coagulation (APC) and case after endoscopic piecemeal mucosal resection (EPMR), recovered well spontaneously. In two cases, titanium clips fell off endoscopic mucosal resection (EMR) resulting in delayed perforation, required surgery. Key factors for preventing and managing the perforation of endoscopic treatment, include the choice of endoscopic approach, processing method of perforation, detail processing in endoscopic therapy, proficient degree of operators and psychological quality. PMID- 29017674 TI - Calcium Regulation in Alzheimer's Disease: Mechanistic Understanding. AB - This study is systematic review of the research, focused on all possible pathways involved in calcium (Ca2+) regulation in order to utilize them in the control and remediation of Alzheimer's disease (AD), because Ca2+ plays important role in pathogenesis of AD. Electronic databases, Science Direct and PubMed/Medline, for relevant publications between 2000April 2017, were searched. Ca2+ ions are very important in cell signaling in body, specially the neuronal signaling. Many pathways are involved in normal neuronal Ca2+ signaling. AD is one of the most commonly known neurodegenerative disorders, causing dementia and some other neuropathological signs in mostly elderly people reaching a rate of 44 million until now. Depending upon certain possibilities, many hypothesis were proposed related to AD; out of which, one is Ca2+ hypothesis. According to this hypothesis, disturbance in Ca2+ signaling pathway due to certain reasons, such as accumulation of beta-amyloid proteins, ER stress, cytochrome c activation etc., causes AD. Due to less clinical research, only few FDAapproved pharmaceuticals are available for treatment of AD. Reviewed studies suggest that Ca2+ channel blocker and initiator may play an important role in cure of AD. PMID- 29017675 TI - Familial Hodgkin Lymphoma. AB - Hodgkin Lymphoma (HL) is a lymphoid tumour that represents about 1% of all neoplasms occurring worldwide. HLis the most treatable of childhood malignancies. The etiology of HLis unknown. However, increase risk has been reported in males, with autoimmune diseases, poor socioeconomic status, increased family size, Ebstein Barr Virus (EBV) exposure, congenital or acquired immunodeficiency and those with a family history of HL. Familial HLis rare. The risk of developing HLis increased six times in the siblings of the affected patients. Both genetic and environmental factors have been postulated in the pathogenesis. No case of familial HLhas been reported in the literature from Pakistan. We report two families with familial HLoccurring in siblings that have been successfully treated and are on our follow-up. PMID- 29017676 TI - Rare Cause of Pleuropnemonia: Tularemia Disease. AB - Tularemia is a zoonotic infection which is caused by gram negative coccobacilli, Francisella tularensis. The disease occurs after contact with blood and body fluids of infected animals, bites and ingestion of infected food and water. Although it commonly presents with skin lesions, there may also be serious organ involvements. A55-year woman was consulted for presumptive diagnosis of tuberculosis. Multiple lymphadenopathy in right cervical area was present on physical examination. Pleural effusion on left side was detected with computed tomography. In detailed history, knowledge of a family member with the diagnosis of tularemia was obtained. Both of them had the history of contact with infected animals. Diagnosis of tularemia was confirmed with microagglutination test. With this patient who was initially presumptively diagnosed as tuberculosis, we aim to draw attention to diagnosis of tularemia in the presence of pleuropnemonia and peripheral lymphadenopathy and emphasize importance of detailed patient history. PMID- 29017677 TI - Artery of Percheron Infarct: ARarity Not to be Missed. AB - Artery of Percheron (AOP) is a rare vascular variant of posterior cerebral circulation and it supplies blood to the bilateral paramedian thalami and the rostral midbrain. Artery of Percheron infarct requires a comprehensive clinical and radiological examination. It can be easily overlooked due to normal CTfindings and wide range of differential diagnosis. Classic triad of presentation is altered mental status, memory impairment and the vertical gaze palsy. We report a case of a 66-year female who had sudden onset of severe vertigo, diplopia and ataxia. Anon-contrast CTBrain was performed which was normal. Her MRI brain with diffusion weighted images (DWI) confirmed bilateral thalamic infarcts which were initially thought to be calcifications, as usually happens with diagnosing artery of Percheron infarcts. However, by reviewing and ruling out all other possible causes of such symptoms and further review of neuroimaging, lead us to the correct diagnosis. PMID- 29017678 TI - Mammary Analogue Secretory Carcinoma of Parotid Gland in a Teenage Boy. AB - Mammary analogue secretory carcinoma (MASC) is a rare salivary gland malignancy that exhibits resemblance with secretory carcinoma of the breast (SC) due to the presence of ETV6-NTRK3 gene fusion, formerly classified as acinic cell carcinoma. It is a slowly growing painless tumor that exhibits wide range of clinical behavior. This tumor typically affects middle aged people. Less than 100 such cases have been reported in the literature so far with only 8 case reports of patients less than 19 years of age. Very little is known about the clinical management of such cases. We hereby report a case of 15-year boy who had been managed for MASC of left parotid gland with exision. PMID- 29017679 TI - Pulmonary Papillary Adenoma: Report of Two Cases. AB - Pulmonary papillary adenoma is a rare tumor. Two cases without any clinical symptoms were enrolled in our hospital. Both cases were incidentally detected in pulmonary area by imaging. Pathological examination revealed well-circumscribed nodules consisting of papillary growth of cuboidal to low columnar epithelial cells lining the surface of the fibrovascular stroma. Immunohistochemistry (IHC) staining showed that the lining cells were diffusely positive for TTF-1, CK, p63, CK7, and Napsin A. The Ki-67 proliferation index was approximately 2%. The morphological features and the IHC profile of the tumor were in agreement with that of pulmonary papillary adenoma. Both patients are doing well without recurrence or metastasis of the tumor. PMID- 29017680 TI - Carotid Intima Media Thickness Percentiles for Pakistani Population. AB - Carotid artery intima media thickness estimation is a well-established way of cardio vascular disease evaluation. The purpose of this cross-sectional study was to develop normal carotid intima media thickness percentile values for a Pakistani cohort. Data was collected at the Departments of Radiology and Family Medicine, The Aga Khan University Hospital, Karachi, from April 2014 to August 2015. High frequency ultrasound of carotid was done in 257 patients [97 male (38%), 160 female (62%)] without any known carotid artery disease. Reference ranges (90% range between 5th and 95th centiles) were constructed for each common carotid and internal carotid artery measurement and displayed in graph form. The mean difference was found in left common carotid artery (0.55 +/-0.13) and left internal carotid artery thickness (0.50 +/-0.10) significant at p=0.031 and p=0.014, respectively. The IMTpercentile graphs developed in this study for internal and common carotid arteries are exclusive for this population and can be used to assess vascular health from ultrasound measurements. PMID- 29017681 TI - pH of Bottled Drinking Water in Islamabad. PMID- 29017682 TI - Calcifying Cystic Odontogenic Tumor. PMID- 29017683 TI - The Appropriate Sample to Define Functional Dyspepsia. PMID- 29017684 TI - Mechanical Intestinal Obstruction Caused by Migration of Deflated Intragastric Balloon. PMID- 29017685 TI - Communication Education for Trainees through Role Play and Dynamic Self Assessment. PMID- 29017686 TI - Trend of Antibiotic Sensitivity of Escherichia Coli in Patients with Urinary Tract Infection. PMID- 29017687 TI - Expression of vascular endothelial growth factor A isoforms is dysregulated in women with endometriosis. AB - Angiogenesis is a critical step in the development of ectopic lesions during endometriosis. Although total vascular endothelial growth factor (VEGF) A is elevated in the peritoneal fluid of women with endometriosis, there are contradictory reports on how levels of total endometrial VEGFA are altered in this disease. Furthermore, limited research is available on different VEGFA isoforms in women with endometriosis. Thus, the aim of the present study was to analyse levels of various VEGFA isoforms in women with and without endometriosis at different stages of the menstrual cycle. Quantitative polymerase chain reaction analysis showed that total VEGFA was highest during menstruation in endometriosis compared with controls (P=0.0373). VEGF121 and VEGF189 were similarly highest during menstruation in endometriosis compared with controls (P=0.0165 and 0.0154 respectively). The present study is also the first to identify the natural expression of VEGF111 in human tissue, which is also highest during menstruation in endometriosis (P=0.0464). This discovery of the natural production of VEGF111 in human endometrium, as well as the upregulation of VEGFA isoforms during menstruation in endometriosis, may shed further light on the development and progression of the disease, and improve our understanding of the regulation of endometrial angiogenesis. PMID- 29017689 TI - Peristomal Lesions in Crohn's Disease: Are They Always Fistulae? PMID- 29017688 TI - Cannabinoids in Pain Management and Palliative Medicine. AB - BACKGROUND: There are conflicting interpretations of the evidence regarding the efficacy, tolerability, and safety of cannabinoids in pain management and palliative medicine. METHODS: We conducted a systematic review (SR) of systematic reviews of randomized controlled trials (RCT) and prospective long-term observational studies of the use of cannabinoids in pain management and palliative medicine. Pertinent publications from January 2009 to January 2017 were retrieved by a selective search in the Cochrane Database of Systematic Reviews, the Database of Abstracts of Reviews of Effects, and Medline. The methodological quality of the SRs was assessed with the AMSTAR instrument, and the clinical relevance of quantitative data syntheses was assessed according to the standards of the Cochrane Collaboration. RESULTS: Of the 750 publications identified, 11 SRs met the inclusion criteria; 3 of them were of high and 8 of moderate methodological quality. 2 prospective long-term observational studies with medical cannabis and 1 with tetrahydrocannabinol/cannabidiol spray (THC/CBD spray) were also analyzed. There is limited evidence for a benefit of THC/CBD spray in the treatment of neuropathic pain. There is inadequate evidence for any benefit of cannabinoids (dronabinol, nabilone, medical cannabis, or THC/CBD spray) to treat cancer pain, pain of rheumatic or gastrointestinal origin, or anorexia in cancer or AIDS. Treatment with cannabis-based medicines is associated with central nervous and psychiatric side effects. CONCLUSION: The public perception of the efficacy, tolerability, and safety of cannabis-based medicines in pain management and palliative medicine conflicts with the findings of systematic reviews and prospective observational studies conducted according to the standards of evidence-based medicine. PMID- 29017691 TI - Addenda. PMID- 29017690 TI - The Range and Scientific Value of Randomized Trials. AB - BACKGROUND: The randomized, controlled trial (RCT) is the gold standard of scientific evidence for the attribution of clinical effects (benefits and harms) to medical interventions. Many different designs for RCTs have been developed in order to counter legitimate critical objections and to better adapt the trials to the continually changing challenges that face clinical research. METHODS: The diversity and adaptability of randomized trial designs are presented and discussed on the basis of a selective literature review and specific illustrative examples. RESULTS: A wide range of RCT designs enables adaptation to special research tasks and clinical framework conditions. These include (among others) crossover trials, n=1 trials, factorial RCT designs, and cluster-randomized trials. In addition, adaptive designs such as modern platform trials and pragmatic RCTs with simplified clinical questions and less severely restricted patient groups make broad recruitment of patients possible even in routine clinical practice. CONCLUSION: Only the randomized allocation of subjects to the treatment and control groups, which is the defining property of RCTs, can adequately ensure that traits of the subjects which might disturb or bias a comparison of two or more medical interventions, will be evenly distributed across groups, regardless of whether these traits are known or unknown. The methodological variants and further elaborations of the RCT that are discussed here will help protect patients by enabling the assessment of the benefits and harms of medical methods and products on the basis of robust evidence even in the present era of rapid innovation. PMID- 29017692 TI - Misuse of Cortisone Eyedrops. PMID- 29017693 TI - Useful Pointers. PMID- 29017694 TI - In Reply. PMID- 29017695 TI - Ocular Signs Should Be Given Attention. PMID- 29017696 TI - Falls Are More Common Than Traffic Crashes. PMID- 29017697 TI - Tissue Pressure and Perfusion. PMID- 29017698 TI - In Reply. PMID- 29017699 TI - Urinary calcium excretion and bone turnover in osteoporotic patients?. AB - INTRODUCTION: It is well documented that patients with osteoporosis (OP) have high incidence of hypercalciuria (HC). However, the mechanism of HC in patients with OP is not well established. It is thought to be the result of high bone turnover (HBT) with excessive bone resorption. OP also frequently presents with low bone turnover (LBT). At this time, it is not clear whether OP with LBT is also associated with hypercalciuria. PURPOSE: The purpose of this study is to evaluate urinary calcium excretion in osteoporotic patients with HBT and LBT. MATERIALS AND METHODS: This is a retrospective study of 132 patients with osteoporosis who underwent bone biopsy at the University of Kentucky between January 2010 and December 2012. Based on bone biopsy results, patients were divided into HBT or LBT groups. Demographic data, medical history, bone mineral density, serum creatinine, calcium, phosphorus, estimated glomerular filtration rate (eGFR), filtered calcium load, fractional excretion of calcium and phosphorus, 25-hydroxy vitamin D levels, and 24-hour urinary calcium excretion and creatinine were obtained from the patients' medical records. Also, intact parathyroid hormone (iPTH), serum osteocalcin, bone-specific alkaline phosphatase, N-telopeptide of type I collagen, and urine pyridinium levels were measured. RESULTS: Hypercalciuria was present in approximately half of the patients in both the HBT and LBT groups. Patients with HBT OP were significantly younger than those with LBT OP (p = 0.013). There was no difference between HBT and LBT patients in 24-hour urinary calcium excretion, serum creatinine, calcium, phosphorus, eGFR, filtered calcium load, and fractional excretion of phosphorus. Mean values of serum osteocalcin and serum N-telopeptide of type I collagen were significantly lower in the LBT compared to the HBT group (p = 0.000 and 0.0152, respectively). There was a significant correlation between filtered calcium load and urinary calcium excretion in HBT patients but not in patients with LBT. Fractional excretion of calcium significantly correlated with urinary calcium excretion in both groups. There was no correlation between kidney function and 24 hour urinary calcium excretion. There was no correlation between dual-emission X ray absorptiometry T-scores and 24-hour urinary calcium excretion. CONCLUSION: HC is frequently present in patients with OP regardless of the underlying bone turnover status. This may suggest the presence of a bone-derived renal calcium regulating factor(s). Further studies are needed to understand the exact mechanism and the potential consequences of HC in OP patients.?. PMID- 29017700 TI - Switching temporary hemodialysis catheters to long-term catheters: exchange versus de-novo placement, any difference in line infection??. AB - BACKGROUND: Shifting from a short-term catheter to a long-term one is done either by removing the old catheter and placing a new long-term one via fresh new puncture site, or by replacing the old catheter with a long-term one over a guidewire. AIM: We aimed to describe our technique in changing a temporary line to a long-term catheter (LTC) over a guidewire and to determine the incidence of line-related infections following this procedure. MATERIALS AND METHODS: A retrospective pilot study was conducted between 2005 and 2010 at the American University of Beirut Hospital. We compared the first group (A), which consisted of 20 patients who underwent exchange of a short-term dialysis catheter with a tunneled one over a guidewire using our technique, to a second group (B) of 60 patients who underwent de-novo LTC placement. The two groups were matched by age, with a follow-up of at least 1 month. RESULTS: The technical success rate of the catheter-conversion procedure was 100%. Our results revealed no significant difference of catheter duration between the two groups, with median duration of 6.5 vs. 4.0 days for group A and group B, respectively (p = 0.21). Moreover, there was also no significant mean time difference between any infection and long term catheter (LTC) insertion among the two groups (p = 0.31). Furthermore, there was no difference of catheter infection between the two groups (p = 0.1). CONCLUSION: We concluded that there was no difference in terms of side effects or risk of infection in the guidewire group when compared to standard technique.?. PMID- 29017701 TI - Comment to: Differences in characteristics and outcomes between community- and hospital-acquired acute kidney injury: A systematic review and meta-analysis. Clinical Nephrology, 2017; 88: 167-182. AB - and Response by Ryota Inokuchi, Yoshitaka Hara, Hideo Yasuda, Noritomo Itami, Yoshio Terada, and Kent Doi. PMID- 29017702 TI - Collaborative study on saccharide quantification of the Haemophilus influenzae type b component in liquid vaccine presentations. AB - Before release onto the market, it must be demonstrated that the total and free polysaccharide (poly ribosyl-ribitol-phosphate, PRP) content of Haemophilus influenzae type b (Hib) vaccine complies with requirements. However, manufacturers use different methods to assay PRP content: a national control laboratory must establish and validate the relevant manufacturer methodology before using it to determine PRP content. An international study was organised by the World Health Organization (WHO), in collaboration with the Biological Standardisation Programme (BSP) of the Council of Europe/European Directorate for the Quality of Medicines & HealthCare (EDQM) and of the European Union Commission, to verify the suitability of a single method for determining PRP content in liquid pentavalent vaccines (DTwP-HepB-Hib) containing a whole-cell pertussis component. It consists of HCl hydrolysis followed by chromatographic separation and quantification of ribitol on a CarboPac MA1 column using high performance anion exchange chromatography coupled with pulsed amperometric detection (HPAEC-PAD). The unconjugated, free, PRP is separated from the total PRP using C4 solid-phase extraction cartridges (SPE C4). Ten quality control laboratories performed two independent analyses applying the proposed analytical test protocol to five vaccine samples, including a vaccine lot with sub-potent PRP content and very high free PRP content. Both WHO PRP standard and ribitol reference standard were included as calibrating standards. A significant bias between WHO PRP standard and ribitol reference standard was observed. Study results showed that the proposed analytical method is, in principle, suitable for the intended use provided that a validation is performed as usually expected from quality control laboratories. PMID- 29017703 TI - Establishment of the Ph. Eur. Hepatitis A virus RNA for NAT testing BRP batch 1. AB - Detection of viral contamination in plasma donations is critical to prevent transmission of infectious diseases. The European Pharmacopoeia (Ph. Eur.) monograph 1646 'Human plasma (pooled and treated for virus inactivation)', requires that plasma pools used for the manufacture of this product be tested, among others, for the presence of hepatitis A virus RNA by nucleic acid testing (NAT) using a positive control containing 100 International Units (IU) of hepatitis A virus (HAV) RNA per mL. To this end, the European Directorate for the Quality of Medicines & HealthCare (EDQM, Council of Europe) organised an international collaborative study under the aegis of the Biological Standardisation Programme, for the establishment of the 1st Biological Reference Preparation (BRP) for HAV RNA for NAT testing. A freeze-dried candidate material was thus prepared and calibrated against the WHO 2nd International Standard for HAV for NAT (00/562) in a study in which thirteen European and North American laboratories including Official Medicines Control Laboratories (OMCLs), manufacturers of plasma-derived products, producers of in vitro diagnostic kits and a blood transfusion centre participated. Based on the outcome of the study, an HAV RNA content of 40 000 IU/vial (corresponding approximately to 4.6 log10 IU/vial) was assigned to the BRP, which was adopted by the Ph. Eur. Commission in March 2016 as Ph. Eur. hepatitis A virus RNA for NAT testing BRP batch 1. PMID- 29017704 TI - Subungual Blue Nevus. PMID- 29017705 TI - Reading between the lines, the key to successfully implementing early rehabilitation in critical care. PMID- 29017706 TI - Improving uptake of colorectal cancer screening. PMID- 29017707 TI - Surgery in ileocaecal Crohn's disease: one more option, sometimes the best? PMID- 29017708 TI - Does biopsy still have a role for adult coeliac disease? PMID- 29017709 TI - Prognostic scores and non-invasive markers in primary sclerosing cholangitis: good for patients or for papers? PMID- 29017710 TI - Cholera outbreak in Yemen. PMID- 29017714 TI - Correction to Lancet Gastroenterol Hepatol 2017; 2: 32-42. PMID- 29017715 TI - Correction to Lancet Gastroenterol Hepatol 2017; 2: 785-92. PMID- 29017718 TI - Corrigendum to "House sparrows mitigate growth effects of post-natal glucocorticoid exposure at the expense of longevity" [Gen. Comp. Endocrinol. 253 (2017) 1-12]. PMID- 29017719 TI - Comparison of gamma- and DVH-based in vivo dosimetric plan evaluation for pelvic VMAT treatments. AB - BACKGROUND AND PURPOSE: To compare DVH-based quality assurance to a multi parametric gamma-based methodology for in vivo EPID dosimetry for VMAT to the pelvis. MATERIALS AND METHODS: For 47 rectum, 37 prostate, and 44 bladder VMAT treatments we reconstructed the 3D dose distributions of 387 fractions from in vivo EPID dosimetry. The difference between planned and measured dose was evaluated using gamma analysis (3%/3mm) in the 50% isodose volume (IDV) and DVH differences (DeltaD2, DeltaD50 and DeltaD98) of targets and organs at risk. The gamma-indicators mean gamma, gamma pass rate and gamma1% were compared to DVH differences and their correlations were studied. DVH-based alerts on PTV and IDV were compared to gamma-based alerts. RESULTS: Average PTV D50 and D98 dose differences were 0.0+/-2.2% (1SD) and -1.4+/-2.9% (1SD). Alert criteria of |DeltaD50|<3.5-4.5% corresponded to an alert rate of about 10%. Strong correlations between mean gamma and gamma pass rate and difference in PTV DeltaD50 were observed for all sites. DVH- and gamma-based alerts agreed on >80% of the fractions for the majority of compared alert thresholds and methods. This agreement is >90% for the larger deviations. CONCLUSIONS: Strong correlations between some gamma- and DVH indicators were found. Our comparison of multi parametric alert strategies showed clinical equivalence for gamma- and DVH-based methods. PMID- 29017720 TI - Insights into the molecular roles of Zika virus in human reproductive complications and congenital neuropathologies. AB - The recent upsurge in the association of congenital neurological disorders and infection by the Zika virus (ZIKV) has resulted in increased research focus on the biology of this flavivirus. Studies in animal models indicate that ZIKV can breach the placental barrier and selectively infect and deplete neuroprogenitor cells (NPCs) of the developing fetus, resulting in changes of brain structures, reminiscent of human microcephaly. In vitro and ex vivo studies using human cells and tissues showed that human NPCs and placental cells are targeted by ZIKV. Also of concern is the impact of ZIKV on human reproductive structures, with the potential to cause infertility, as the virus appears to remain in the genital tract for extended periods of time. This review discusses the putative roles of ZIKV on human reproductive complications and congenital neuropathologies. PMID- 29017721 TI - Varied influence of microcystin structural difference on ELISA cross-reactivity and chlorination efficiency of congener mixtures. AB - Enzyme-linked immunosorbent assay (ELISA) is an antibody-based analytical method that has been widely applied in water treatment utilities for the screening of toxic cyanobacteria metabolites such as microcystins (MCs). However, it is unknown how the minor structural difference of MCs may impact their chlorination kinetics and measurement via ELISA method. It was found in this study that, regardless of the experimental conditions (n = 21), there was no MC-YR or MC-LY residual, while different removal rates of other MCs were observed (MC-RR > MC-LR > MC-LA ~ MC-LF) as measured by liquid chromatography tandem mass spectrometry (LC-MS/MS), which was consistent with the relative reactivity of the amino acid variables with free chlorine. The removal of total MCs was generally lower as measured by ELISA than by LC-MS/MS. By incorporating both analytical results, existence of ADDA-containing byproducts or byproducts that had a higher sensitivity toward the ELISA kit was demonstrated, after excluding the contribution of the cross-reactivity of the parent MCs. It should be noted, however, that the cross-reactivities of MCs could be influenced not only by MC congeners, but also by other conditions such as mixtures and the applied ELISA kit. PMID- 29017722 TI - One-pot synthesis of zeolitic imidazolate framework-8/poly (methyl methacrylate ethyleneglycol dimethacrylate) monolith coating for stir bar sorptive extraction of phytohormones from fruit samples followed by high performance liquid chromatography-ultraviolet detection. AB - In this work, zeolitic imidazolate framework-8 (ZIF-8)/poly (methyl methacrylate ethyleneglycol dimethacrylate) (MMA-EGDMA) composite monolith was in situ synthesized on stir bar by one-pot polymerization. Compared with the neat monolith, ZIF-8/poly(MMA-EGDMA) composite monolith has larger surface area and pore volume. It also exhibits higher extraction efficiency for target phytohormones than poly(MMA-EGDMA) monolith and commercial polyethylene glycol (PEG) coated stir bar. Based on it, a method of ZIF-8/poly(MMA-EGDMA) monolith coated stir bar sorptive extraction (SBSE)-high performance liquid chromatography ultraviolet detection (HPLC-UV) was established for the analysis of five phytohormones in apple and pear samples. The developed method exhibited low limits of detection (0.11-0.51MUg/L), wide linear range (0.5-500MUg/L) and good recoveries (82.7-111%), which demonstrated good application potential of the ZIF 8/monolith coated stir bar in trace analysis of organic compounds. PMID- 29017723 TI - Comparison of nanofluidic and ultra-high performance liquid chromatography-tandem mass spectrometry for high sensitive pharmacokinetic studies of estrogens starting from whole blood microsampling. AB - Pharmacokinetic (PK) studies on small animals are challenging as only small volumes of samples are available, in which the analyte is present at low concentration in a complex matrix. In this context, the use of miniaturized analytical techniques may provide undeniable advantages in terms of sensitivity, sample and solvent consumption compared to the reference UHPLC-MS/MS methods In this study, we present the development of a nanofluidic-LC-MS/MS method to analyze two model analytes of therapeutic interest, namely estradiol (E2) and estetrol (E4) after microsampling with volumetric absorptive microsampling (VAMS) devices, an innovative sampling technique to collect small volumes of whole blood. The nanofluidic LC-MS/MS method was developed using an experimental design to find the optimal conditions to analyze both E2 and E4 with the highest sensitivity. Subsequently, the optimized method was validated according to ICH guidelines and compared to a previously developed UHPLC-MS/MS method. A limit of quantitation of 50pg/ml was reached with the LC-chip method, which is 50 times better than UHPLC-MS/MS. Both methods were then critically evaluated from the analytical and operational points of view. Finally, the quantitation of estrogens after whole blood microsampling was compared with the results obtained with the corresponding plasma samples. PMID- 29017724 TI - Using experiential marine debris education to make an impact: Collecting debris, informing policy makers, and influencing students. AB - The Shore to Statehouse project supported the creation of an open-source, replicable, undergraduate experiential course on marine debris. Funded by the National Oceanic and Atmospheric Administration, the course allowed undergraduate students in Connecticut, USA, to collect marine debris locally, then create a policy report for state legislators. Here we share the results of the project including data on four accumulation surveys on the Long Island Sound, as well as the impact on student motivation, attitudes, and behavior levels. Results include finding over 1600 individual pieces of debris totaling 19.4kg (42.8lb). In addition, the students experienced statistically significant improvements in knowledge and behavior scores. This open-source course can be replicated, empowering students to remove debris, provide important information to local policy makers, and improve knowledge and behavior. PMID- 29017725 TI - Appropriateness of a pediatric-specific enhanced recovery protocol using a modified Delphi process and multidisciplinary expert panel. AB - PURPOSE: Despite Enhanced Recovery After Surgery (ERAS) protocols demonstrating improved outcomes in a wide variety of adult surgical populations, these protocols are infrequently and inconsistently being used in pediatric surgery. Our purpose was to develop a pediatric-specific ERAS protocol for use in adolescents undergoing elective intestinal procedures. METHODS: A modified Delphi process including extensive literature review, iterative rounds of surveys, and expert panel discussions was used to establish ERAS elements that would be appropriate for children. The 16-member multidisciplinary expert panel included surgeons, gastroenterologists, anesthesiologists, nursing, and patient/family representatives. RESULTS: Building upon a national survey of surgeons in which 14 of 21 adult ERAS elements were considered acceptable for use in children, the 7 more contentious elements were investigated using the modified Delphi process. In final ranking, 5 of the 7 controversial elements were deemed appropriate for inclusion in a pediatric ERAS protocol. Routine use of insulin to treat hyperglycemia and avoidance of mechanical bowel preparation were not included in the final recommendations. CONCLUSIONS: Using a modified Delphi process, we have defined an appropriate ERAS protocol comprised of 19 elements for use in adolescents undergoing elective intestinal surgery. Prospective validation studies of ERAS protocols in children are needed. LEVEL OF EVIDENCE: Level V, Expert opinion. PMID- 29017726 TI - The effect of accounting for biarticularity in hip flexor and hip extensor joint torque representations. AB - Subject-specific torque-driven models have ignored biarticular effects at the hip. The aim of this study was to establish the contribution of monoarticular hip flexors and hip extensors to total hip flexor and total hip extensor joint torques for an individual and to investigate whether torque-driven simulation models should consider incorporating biarticular effects at the hip joint. Maximum voluntary isometric and isovelocity hip flexion and hip extension joint torques were measured for a single participant together with surface electromyography. Single-joint and two-joint representations were fitted to the collected torque data and used to determine the maximum voluntary joint torque capacity. When comparing two-joint and single-joint representations, the single joint representation had the capacity to produce larger maximum voluntary hip flexion torque (larger by around 9% of maximum torque) and smaller maximum voluntary hip extension torque (smaller by around 33% of maximum torque) with the knee extended. Considering the range of kinematics found for jumping movements, the single-joint hip flexors had the capacity to produce around 10% additional torque, while the single joint hip extensors had about 70% of the capacity of the two-joint representation. Two-joint representations may overcome an over simplification of single-joint representations by accounting for biarticular effects, while building on the strength of determining subject-specific parameters from measurements on the participant. PMID- 29017727 TI - Effects of low-level prenatal exposure to dioxins on cognitive development in Japanese children at 42months. AB - BACKGROUND: Prenatal exposure to polychlorinated dibenzo-p-dioxins (PCDDs) or polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dioxin-like compounds [DLCs]) through environmental chemicals may affect the neurodevelopment of children. In our previous study, an inverse association was observed between prenatal DLCs and neurodevelopment of infants aged 6months in both sexes. However, studies are yet to determine how long these adverse effects last. OBJECTIVE: To examine whether the effects of DLCs on cognitive development remains at 42months. METHODS: In this prospective cohort study conducted in Sapporo, Japan, pregnant mothers' blood was analyzed for the congener level of DLCs. The Kaufman Assessment of Battery for Children (K-ABC) was used to test their children's cognitive development at 42months. A total of 141 mother-child pairs were included in the final analysis. The multiple linear regression analysis was used to examine the association between the K-ABC scores and DLC levels in the maternal blood. RESULTS: Seven isomers (1,2,3,6,7,8-HxCDD, 2,3,4,7,8-PeCDF, 33'44'55'-HxCB(#169), 2344'5- PenCB(#114), 233'44'5-HexCB(#156), 233'44'5'-HexCB(#157), 23'44'55'-HexCB(#167), total PCDF, and TEQ-PCDD, PCDF, PCDD/DFs levels were positively associated with the achievement score (AS) of K ABC. However, total non-ortho PCBs were negatively associated with the Mental Processing Composite Score (MPCS) of K-ABC in males. In females, increased TEQ-dl PCB and TEQ-PCDD/F/dl-PCB were also associated with increasing AS score. CONCLUSIONS: This study suggests that the negative effects of prenatal DLC exposure on children's cognitive development at 6months were not observed in children aged 42months. Regarding the sex-specific effects, AS and DLCs were positively correlated in females, whereas those of MPCS and DLCs were significantly negative in males. PMID- 29017729 TI - Fungal community dynamics during a marine dinoflagellate (Noctiluca scintillans) bloom. AB - Contamination and eutrophication have caused serious ecological events (such as algal bloom) in coastal area. During this ecological process, microbial community structure is critical for algal bloom succession. The diversity and composition of bacteria and archaea communities in algal blooms have been widely investigated; however, those of fungi are poorly understood. To fill this gap, we used pyrosequencing and correlation approaches to assess fungal patterns and associations during a dinoflagellate (Noctiluca scintillans) bloom. Phylum level fungal types were predominated by Ascomycota, Chytridiomycota, Mucoromycotina, and Basidiomycota. At the genus level drastic changes were observed with Hysteropatella, Malassezia and Saitoella dominating during the initial bloom stage, while Malassezia was most abundant (>50%) during onset and peak-bloom stages. Saitoella and Lipomyces gradually became more abundant and, in the decline stage, contributed almost 70% of sequences. In the terminal stage of the bloom, Rozella increased rapidly to a maximum of 50-60%. Fungal population structure was significantly influenced by temperature and substrate (N and P) availability (P < 0.05). Inter-specific network analyses demonstrated that Rozella and Saitoella fungi strongly impacted the ecological trajectory of N. scintillans. The functional prediction show that symbiotrophic fungi was dominated in the onset stage; saprotroph type was the primary member present during the exponential growth period; whereas pathogentroph type fungi enriched in decline phase. Overall, fungal communities and functions correlated significantly with N. scintillans processes, suggesting that they may regulate dinoflagellate bloom fates. Our results will facilitate deeper understanding of the ecological importance of marine fungi and their roles in algal bloom formation and collapse. PMID- 29017728 TI - Near-Infrared Fluorescent Proteins Engineered from Bacterial Phytochromes in Neuroimaging. AB - Several series of near-infrared (NIR) fluorescent proteins (FPs) were recently engineered from bacterial phytochromes but were not systematically compared in neurons. To fluoresce, NIR FPs utilize an enzymatic derivative of heme, the linear tetrapyrrole biliverdin, as a chromophore whose level in neurons is poorly studied. Here, we evaluated NIR FPs of the iRFP protein family, which were reported to be the brightest in non-neuronal mammalian cells, in primary neuronal culture, in brain slices of mouse and monkey, and in mouse brain in vivo. We applied several fluorescence imaging modes, such as wide-field and confocal one photon and two-photon microscopy, to compare photochemical and biophysical properties of various iRFPs. The iRFP682 and iRFP670 proteins exhibited the highest brightness and photostability under one-photon and two-photon excitation modes, respectively. All studied iRFPs exhibited efficient binding of the endogenous biliverdin chromophore in cultured neurons and in the mammalian brain and can be readily applied to neuroimaging. PMID- 29017730 TI - Discussion of: "Southwestern Surgical Congress Jack A. Barney award competition presenters - Where are they now?" PMID- 29017731 TI - Impact of geriatric consultations on clinical outcomes of elderly trauma patients: A retrospective analysis. AB - INTRODUCTION: The elderly account for a large proportion of morbidity and mortality secondary to trauma, despite lower-energy mechanisms of injury and fewer trauma admissions. The benefit of geriatric trauma consultation services (GTCS) to this population remains unclear. METHODS: We performed a retrospective cohort analysis of a GTCS, which was established in January 2015. Patients over 60 admitted to the trauma service from January of 2014 to February 2016 were eligible. RESULTS: There were no significant differences in 30-day and in hospital mortalities, mean ICU and total lengths of stay, or complication rates. However, if a single complication was experienced, post-GTCS patients were nearly three times more likely to experience multiple complications. More patients in the GTCS group were discharged home, but were readmitted four times more often. CONCLUSIONS: A mandatory GTCS was not associated with improved patient outcomes, suggesting that management exclusively by the trauma team is at least equally effective in treatment of geriatric trauma. PMID- 29017732 TI - A nationwide evaluation of robotic ventral hernia surgery. AB - BACKGROUND: The purpose of this study was to examine outcomes of robotic ventral hernia repair(RVHR) versus laparoscopic ventral hernia repair(LVHR). METHODS: The Nationwide Inpatient Sample was queried from October 2008 to December 2013 for ventral hernia repairs. Demographics, morbidity, mortality, and charges were compared between RVHR and LVHR. RESULTS: From 2008-2013, 149,622 ventral hernia surgeries were identified; 117,028 open, 32,243 laparoscopic, and 351 robotic. Open repairs were excluded. RVHR rose annually with 2013 containing 47.9% of all RVHRs. RVHR patients were more likely to be older and have more chronic conditions. There was no difference between length of stay. Pneumonia rates were higher with RVHR; however, after controlling for confounding variables, there was no difference in pneumonia rates. Mortality and other major complications were similar. Total charges were increased for RVHR in univariate and multivariate analysis. RVHR was more common in teaching hospitals and wealthier zip codes. CONCLUSION: RVHR demonstrates comparable safety to the laparoscopic technique, with increased charges and increased volume in urban teaching hospitals and patients from areas of higher median income. PMID- 29017733 TI - Re: Heat generation and drill wear during dental implant site preparation. PMID- 29017734 TI - Anatomy of the vasculature of the lower leg and harvest of a fibular flap: a systematic review. AB - The fibular free flap (FFF) is based on the peroneal artery, which has a consistent anatomy and makes a minimal contribution to the pedal circulation. However, certain anatomical variations in the vasculature of the leg might leave the peroneal artery with a major role in the perfusion of the foot, and to raise a FFF could lead to ischaemic complications. Our aim was to review the implications of anatomical variants on planning and harvest of a FFF. We systematically reviewed all relevant publications, and included 28 cases that described a dominant peroneal artery and FFF. Most of the patients had clinically normal pulses, and the dominant peroneal artery was diagnosed by preoperative vascular mapping. Variants of the peronea arteria magna were the most common. Bilateral anatomical variations were reported in 10 cases. The surgical plan to harvest the fibula was altered in 21 patients with vascular aberrations. In 17 of the 21, the leg with the anatomical variant was not used. The opposite fibula was used in 10 cases. In four of the 21, the FFF was harvested from the leg with a dominant peroneal artery, after the technique of harvest had been modified. The FFF was successfully harvested without any modification in only five cases. Two patients who had not had preoperative vascular mapping developed acute ischaemia of the limb after harvest of the FFF because of an existing peronea arteria magna. Preoperative vascular mapping is a valuable way to assess that perfusion of the foot is adequate, and it provides accurate information about the vascular anatomy, cutaneous perforators, and the fibular blood supply, with minimal or no added cost or risks. PMID- 29017735 TI - Re: re: Heat generation and drill wear during dental implant site preparation: systematic review. PMID- 29017736 TI - Chronic recurrent dislocation of the temporomandibular joint secondary to a complex facial tic disorder. PMID- 29017737 TI - Laparoscopic adenomectomy: 10 years of experience. AB - INTRODUCTION: Lower urinary tract symptoms secondary to increased prostate volume are associated with ageing and are becoming more prevalent due to increased life expectancy. We present our experience with transperitoneal laparoscopic adenomectomy for the management of bladder outlet obstruction caused by benign prostatic enlargement. MATERIALS AND METHODS: We performed a retrospective review of patients who underwent laparoscopic adenomectomy between 2005 and 2015. We recorded age, maximum flow and postvoid residual urine (preoperative and postoperative), surgical time, operative bleeding, weight and pathology, complications and duration of catheterisation and hospitalisation. RESULTS: We included 80 patients with a mean age of 70 years. The mean preoperative and postoperative Qmax was 8.21mL/s and 22.52mL/s, respectively. The mean preoperative and postoperative postvoid residual urine was 91.4mL and 14.2mL, respectively. The mean surgical time was 137.7min. Conversion to open surgery was necessary in one case due to intestinal injury. The mean intraoperative bleeding was 227.6mL. The mean hospital stay was 5.46 days, and the catheterisation time was 4.86 days. There were 13 complications, which were recorded according to the Clavien-Dindo system, 3 of which were severe. The mean weight of the surgical specimen was 80.02g. Pathology showed benign hyperplasia in 75 cases and prostate cancer in the remaining 5. CONCLUSION: Laparoscopic adenomectomy is a safe, reproducible technique with the same functional results as open surgery. Our series shows that this approach is useful and safe and has a low rate of complications. PMID- 29017739 TI - Pulmonary and laryngeal tuberculosis in a 25-weeks' gestation parturient, diagnosed after failed tracheal intubation. AB - A pregnant woman at 25weeks of gestation was diagnosed with laryngeal tuberculosis following a failed intubation for upper gastrointestinal endoscopy. Laryngeal tuberculosis represents approximately 1% of all cases of tuberculosis in the United States and presents a unique diagnostic challenge, because accompanying laryngeal changes are both varied and nonspecific. This report highlights both the challenges of the pregnant airway and the diagnosis and treatment of laryngeal tuberculosis. PMID- 29017738 TI - The burden of atopic dermatitis in US adults: Health care resource utilization data from the 2013 National Health and Wellness Survey. AB - BACKGROUND: There is a lack of data on the burden of atopic dermatitis (AD) in adults relative to the general population. OBJECTIVE: To characterize the AD burden in adult patients relative to both matched non-AD controls and matched patients with psoriasis in terms of comorbidities, health care resource utilization (HCRU), and costs. METHODS: Adults (>=18 years) who self-reported a diagnosis of AD or psoriasis and adult non-AD controls were identified from the 2013 US National Health and Wellness Survey. Patients with AD were propensity score-matched with non-AD controls and patients with psoriasis on demographic variables. Patient-reported outcomes were analyzed between matched cohorts. RESULTS: Patients with AD had a significantly greater risk for atopic comorbidities, as well as significantly greater HCRU and total cost compared with non-AD controls. The burden of AD was generally comparable to that of psoriasis, although patients with AD reported increased use of emergency room visits compared with patients with psoriasis. LIMITATIONS: Patient-reported data are susceptible to recall bias and erroneous classification. CONCLUSIONS: Adult patients with AD reported a substantial disease burden, suggesting an unmet need for more effective AD treatment options. PMID- 29017740 TI - Evaluation of the Genesis Epidural-Spinal Injection Simulator. PMID- 29017741 TI - How to replace fibrinogen in postpartum haemorrhage situations? (Hint: Don't use FFP!). PMID- 29017742 TI - Preoperative anterior thigh temperature does not correlate with perioperative temporal hypothermia during cesarean delivery with spinal anesthesia: Secondary analysis of a randomized control trial. AB - BACKGROUND: Core-to-peripheral redistribution of heat, secondary to sympathetic mediated vasodilation, is the major mechanism leading to early perioperative hypothermia after neuraxial anesthesia. The study aim was to determine if preoperative anterior thigh (peripheral lower extremity) temperature predicted perioperative temporal (core) temperature decrease during cesarean delivery with spinal anesthesia. METHODS: Secondary analysis of data derived from a prospective, randomized study of 46 healthy women undergoing scheduled cesarean delivery with spinal anesthesia was performed. Anterior thigh temperature was measured preoperatively prior to spinal anesthesia. The primary outcome was maximum perioperative temporal temperature decrease. Secondary outcomes included incidence of temporal hypothermia (temperature <36 degrees C), shivering, and thermal comfort scores. This study ran concurrently with a previously published trial comparing no active intraoperative warming with active warming. RESULTS: There was no correlation between preoperative anterior thigh temperature and maximum perioperative temporal temperature decrease (r=-0.049, P=0.751). The mean+/-standard deviation preoperative anterior thigh temperature of women who developed temporal hypothermia compared to those who did not was 32.4+/-0.8 degrees C versus 32.4+/-0.70 degrees C respectively (P=0.995). Preoperative anterior thigh temperature did not correlate with the incidence of shivering (r=0.267, P=0.080) or thermal comfort scores (r=0.233, P=0.129). CONCLUSION: Preoperative anterior thigh temperature does not correlate with the degree of perioperative temporal temperature decrease, likelihood of developing hypothermia, shivering, or thermal comfort during cesarean delivery with spinal anesthesia. Although core-to-peripheral redistribution of heat after neuraxial anesthesia is a major mechanism of perioperative heat loss, a lower extremity temperature prediction hypothesis was not confirmed in this population. PMID- 29017743 TI - Resistance training for rehabilitation after burn injury: A systematic literature review & meta-analysis. AB - BACKGROUND/AIM: Resistance training is beneficial for rehabilitation in many clinical conditions, though this has not been systematically reviewed in burns. The objective was to determine the effectiveness of resistance training on muscle strength, lean mass, function, quality of life and pain, in children and adults after burn injury. METHODS: Medline & EMBASE, PubMed, CINAHL and CENTRAL were searched from inception to October 2016. Studies were identified that implemented resistance training in rehabilitation. Data were combined and included in meta analyses for muscle strength and lean mass. Otherwise, narrative analysis was completed. The quality of evidence for each outcome was summarised and rated using the GRADE framework. RESULTS: Eleven studies matched our inclusion criteria. Primary analysis did not demonstrate significant improvements for increasing muscle strength (SMD 0.74, 95% CI -0.02 to 1.50, p=0.06). Sensitivity analysis to correct an apparent anomaly in published data suggested a positive effect (SMD 0.37, 95% CI 0.08-0.65, p=0.01). Psychological quality of life demonstrated benefit from training (MD=25.3, 95% CI 3.94-49.7). All studies were rated as having high risk of bias. The quality of the evidence was rated as low or very low. CONCLUSION: Further research with robust methodology is recommended to assess the potential benefit suggested in this review. PMID- 29017744 TI - Effect of season on follicular population, quality and nuclear maturation of bovine oocytes under tropical conditions. AB - The aim was to determine the effect of season of the year and the presence of a corpus luteum (CL) on follicular population (FP) and the quality of the oocytes, and of season on nuclear maturation of the bovine oocytes under tropical conditions. Three seasons were evaluated: hot-dry (March-June), hot-humid (July October) and fresh-humid (November-February). In a first study, 1112 bovine ovaries were obtained from a local slaughterhouse. Follicles were classified as small (<=4mm), middle (4.1-8mm) and large (>=8.1mm); and the maximum diameter of the follicle (MDF) and CL (MDCL) were also recorded. The oocytes were collected by aspiration and classified as viable (grade I and II) and damaged (grade III and IV). In the second study, 2261 viable oocytes were matured in vitro, and then fixed and stained with Lacmoid to classify the stage of development as mature (metaphase II), immature or degenerate. Data were analyzed using analysis of variance and chi-square procedures. The largest FP of large follicles (0.67), MDF (1.18mm), MDCL (1.87mm), and the highest proportion of viable oocytes (34.19%) were obtained during the hot-humid season (P<0.05). The ovaries without CL had the greatest FP (10.34) with more viable oocytes (24.44%). The highest proportion of mature oocytes (76.92%) was also obtained in the hot-humid season. In conclusion, season influenced FP, MDF, MDCL, and the quality and nuclear maturation of oocytes. The presence of a CL in the ovary resulted in a decrease of FP and viability of oocytes. PMID- 29017745 TI - Does transcutaneous nerve stimulation have effect on sympathetic skin response? AB - OBJECTIVE: This study examined the effects of transcutaneous electrical nerve stimulation (TENS) on the sympathetic nerve system by sympathetic skin response test. METHODS: Fifty-five healthy volunteers received either: (i) 30minutes TENS (25 participants) (ii) 30minutes sham TENS (30 participants) and SSR test was performed pre- and post-TENS. The mean values of latency and peak-to-peak amplitude of five consecutive SSRs were calculated. RESULTS: A significant amplitude difference was found between TENS and sham TENS group both in right and left hand (p=0.04, p=0.01, respectively). However there was no significant latancy difference between two groups (p>0.05 ). CONCLUSION: TENS has an inhibitory effect on elicited SNS responses when compared with sham TENS control group. PMID- 29017746 TI - Mild water restriction with or without urea for the longterm treatment of syndrome of inappropriate antidiuretic hormone secretion (SIADH): Can urine osmolality help the choice? AB - BACKGROUND: Treatment options for chronic SIADH include water restriction (WR) and urea. The usefulness of urine osmolality to guide the choice of the treatment option is not clearly defined. We hypothesized that urine osmolality can indicate whether treatment with mild water restriction alone could be successful. METHODS: Retrospective Review of clinical and biochemical (blood and urine) data of patients with chronic SIADH treated for at least one year with mild WR (1.5 2l/day) either with or without urea. RESULTS: Twenty nine patients were included. Nine patients were treated by mild WR. Mean serum sodium (SNa) and mean Uosm were 129+/-2mEq/l and 274+/-78mOsm/kgH2O respectively before WR, and increased to 138.5+/-3mEq/l and 505+/-87mOsm/kgH2O (P<0.001). Eight patients were treated with mild WR and 15g urea daily, the SNa and Uosm before treatment were 127.5+/-3mEq/l and 340+/-100mOsm/kgH2O respectively and increased to 136.5+/-1mEq/l and 490+/ 151mOsm/kgH2O (P<0.001). Four of the eight patients had a permanent low solute intake which contributed to hyponatremia. Twelve patients needed 30g urea daily combined with mild WR. The SNa and Uosm were respectively 126+/-2mEq/l and 595+/ 176mOsm/kgH2O and increased to 136.5+/-2mEq/l and 698+/-157mOsm/kgH2O (P<0.05). Uosm increased in most of the treated patients. CONCLUSIONS: About 30% of patients could be treated by moderate WR alone. All these patients presented an initial urine osmolality lower than 400mOsm/kgH2O. PMID- 29017747 TI - Re: "Lesson Learned with the Use of Iliac Branch Devices: Single Centre 10 Year Experience in 157 Consecutive Procedures". PMID- 29017748 TI - Transcatheter Aortic Valve Implantation In Patients With a Large Aortic Annulus. AB - BACKGROUND: As the indications for transcatheter aortic valve implantation (TAVI) have expanded, so to have the demands on interventionists to allow as many patients to access this technology as possible. METHODS: We retrospectively reviewed our TAVI database for patients who had received a 29mm SAPIEN 3 valve despite having an annular area greater than the manufacturer-recommended upper limit of 683mm2, as determined by multi-detector computed tomography (MDCT). Procedural and inpatient outcome data were collected. RESULTS: The study population was 5 of 121 patients receiving a SAPIEN 3 valve since it became available in March 2015. Their annular area ranged from 691 to 800mm2. Valve deployment was successful in all patients. The deployment balloon volume was nominal, except for an additional 1ml in one patient. No patient had a new indication for permanent pacing, and no significant valvular or paravalvular regurgitation (PVR) was identified on post-procedure transthoracic echocardiography. All patients survived to hospital discharge. CONCLUSIONS: In this select group of patients we have demonstrated that it is safe and feasible to use the 29mm SAPIEN 3 in patients with annular dimensions greater than those recommended, with minimal balloon overfilling. PMID- 29017749 TI - Characterization of the nuclear import pathway for BLM protein. AB - Numerous studies have shown that nuclear localization of BLM protein, a member of the RecQ helicases, mediated by nuclear localization signal (NLS) is critical for DNA recombination, replication and transcription, but the mechanism by which BLM protein is imported into the nucleus remains unknown. In this study, the nuclear import pathway for BLM was investigated. We found that nuclear import of BLM was inhibited by two dominant-negative mutants of importin beta1 and NTF2/E42K, which lacks the ability to bind Ran and RanGDP, respectively, but was not inhibited by the Ran/Q69L, which is deficient in GTP hydrolysis. Further studies revealed that nuclear import of BLM was reconstituted using importin beta1, RanGDP and NTF2 in digitonin-permeabilized HeLa cells. Moreover, BLM had direct binding to importin beta1 through its NLS domain with the 14-16 HEAT repeats of importin beta1. Furthermore, importin beta1, Ran or NTF2 depletion by siRNA disrupted the accumulation of BLM protein in the nucleus. These results showed that BLM enters the nucleus via the importin beta1, RanGDP and NTF2 dependent pathway, demonstrating for the first time the nuclear trafficking mechanism of a DNA helicase. PMID- 29017750 TI - Trends and relationship between antimicrobial resistance and antibiotic use in Xinjiang Uyghur Autonomous Region, China: Based on a 3 year surveillance data, 2014-2016. AB - PURPOSES: The objective of the study was to identify the trends and relations between antimicrobial resistance (AMR) and antibiotic use in the Xinjiang Uyghur Autonomous Region in Western China from 2014 to 2016. METHODS: A retrospective, descriptive analysis of AMR prevalence, and trends and relations between AMR and antibiotic use during the 3-year period was performed. RESULTS: Third-generation cephalosporin-resistant Escherichia coli was the most prevalent resistant pathogen in terms of both resistance density and resistance proportion. A significant correlation was found between resistance density of third-generation cephalosporin-resistant Klebsiella pneumoniae and the use of beta-lactam-beta lactamase inhibitor combinations (cc=0.63, p=0.03), quinolones (cc=0.60, p=0.04), and carbapenems (cc=0.76, p=0.004), among which only beta-lactam-beta-lactamase inhibitor combinations showed a significant correlation with third-generation cephalosporin-resistant E. coli (cc=0.63, p=0.03). For carbapenem-resistant Pseudomonas aeruginosa, not only carbapenem use (cc=0.65, p=0.02) but also penicillin (cc=0.76, p=0.004) and quinolone (cc=0.69, p=0.01) use showed significant correlation. A strong correlation was observed between the resistant proportion of third-generation cephalosporin-resistant E. coli and only the use of beta-lactam-beta-lactamase inhibitor combinations (cc=0.61, p=0.03). CONCLUSION: The association between antibiotic use and AMR, especially the implication of the difference in resistance density and resistance proportion, is crucial for local physicians and decision-makers to better use of antibiotics and allocate healthcare resources more effectively, as well as to better implement antimicrobial stewardship and effective infection control strategies. PMID- 29017751 TI - Varicella infection in a non-universally vaccinated population: Actual epidemiology in Bulgaria (2013-2015). AB - BACKGROUND: Varicella is a common and usually mild disease but it has great importance in regard to general infectious morbidity. The current study aimed to characterize possible risk factors of varicella epidemiology in Bulgaria, a country where infection follows its natural epidemiological pattern as no mandatory or recommended vaccine is currently applied. METHODS: Administrative regions of Bulgaria were used as units of observation and a set of sociodemographic and economic determinants, as well as geographic location (south or north) were tested for associations with the mean 3-year varicella incidence rates (2013-2015). RESULTS: The proportion of urban population, proportion of females, number of health care units and proportion of urban population aged <10 years were the four sociodemographic variables most strongly and significantly correlated (p<0.05) with varicella frequency (Spearman's rank correlation coefficients of 0.62, 0.47, 0.43, and 0.38, respectively). After reducing the number of intercorrelated factors to a few principal components and accounting for confounders, the demographic component and geographic location remained most robustly associated with varicella incidence in Bulgaria (adjusted R2 of 0.51, p<0.001). CONCLUSIONS: The results obtained identify important determinants in the local epidemiology of varicella and show that community characteristics should be considered, to improve our understanding of varicella distribution. PMID- 29017752 TI - [Shortages in medicinal products in a tertiary care hospital in Spain]. PMID- 29017753 TI - [Less is not more, but it can be the beginning of the change]. PMID- 29017754 TI - Health Behavior and Quality of Life Outcome in Breast Cancer Survivors: Prevalence Rates and Predictors. AB - PURPOSE: Health behavior (HB) has been identified as contributing to breast cancer (BC) disease outcome. The present study was subjected to gain more in depth insight into breast cancer survivors' (BCS) HB and its associations with patient quality of life (QOL) outcome. We investigated HB focusing on eating disturbances comparing the latter with a reference population sample (PS). MATERIALS AND METHODS: The research cohort included 303 BCS completing a comprehensive patient-reported-outcome assessment on HB (eating disturbances, exercise, substance use) and QOL. Data from an age- and education-matched reference PS (n = 303) on eating disturbances were included. RESULTS: Overall, 30% of BCS were overweight; 11.7% of BCS (2-11 years after diagnosis, mean = 5.2 years) reported eating disturbances compared with 5% of PS (P < .05). Approximately three-fourths of BCS indicated they exercise regularly, one-fourth smoke regularly, and 30% consume alcohol. Lower consumption of analgesics and tranquilizers, higher frequency of exercise, lower eating concern (EDE-Q), younger age, and lower body mass index were significant predictors for better physical QOL. Lower eating and shape concern were next to age-identified predictive for better psychological QOL. DISCUSSION: Obesity and eating disturbances are a considerable HB problem in women with a history of BC. Considering that HB is predictive for long-term QOL in BCS, routine counseling on HB should be integrated into survivorship care to increase patient education and contribute to behavioral changes. PMID- 29017755 TI - Self-medication and non-prescription drug counseling: Illustrating profession uncertainty within Turkish pharmacy practice. AB - BACKGROUND: Recommending effective minor ailment treatments and using non prescription or over-the-counter (OTC) medicines is a pharmacist's duty. Although common in most European countries, self-medication counseling practices may differ from country to country. OBJECTIVES: This study explored Turkish community pharmacists' attitudes concerning the present self-medication market, professional responsibilities toward patients' self-care, and the usefulness of e learning for patients' counseling education. METHODS: The study was comprised of three phases: initially, a document content analysis searched for relevant OTC regulatory and/or practice frameworks; secondly, qualitative individual interviews on self-medication with purposively selected Turkish community pharmacists were performed; finally, a focus group with practitioners and continuing education experts was conducted to deepen previous results. A thematic data analysis, based on the attitudinal theory, was conducted, supported by MAXQDA v12 software. RESULTS: Sixteen documental sources allowed the extraction of three initial main themes: self-medication, classification of medicines and pharmacists' role. Individual interviews outlined four themes that informed the focus group discussion, which produced four new themes. Themes and their codes reflected dissimilar practitioners' cognitions towards OTCs, OTC usage and self medication, particularly if compared to other European conceptualizations. Contradictory feelings towards the value of OTCs for professional development, e.g., patient counseling influenced by profit-based expectations, were identified. CONCLUSION: Turkish community pharmacists and their minor ailments treatment competences have yet to thrive as a relevant professional intervention. There are risks of missing the best pharmacy practice standards, thus losing their contribution to rational self-care. Besides weakening the societal recognition of the profession to help individuals' everyday health decisions and well-being, there might be a reduced active role in public health. PMID- 29017756 TI - Biomechanical strain-induced modulation of proliferation coincides with an ERK1/2 independent nuclear YAP localization. AB - Biomechanical strain induces activation of the transcriptional co-activator yes associated protein (YAP) by nuclear re-distribution. Recent findings indicate that the mechanically responsive mitogen-activated protein kinase (MAPK) extracellular signal-regulated kinase (ERK) 1/2 is involved in the amount of nuclear YAP, reflecting its activation. In this context, we conducted experiments to detect how biomechanical strain acts on the subcellular localization of YAP in periodontal cells. To this end, cells were subjected to 2.5% static equiaxial strain for different time periods. Western blot and fluorescence imaging-based analyses revealed a clear modulation of nuclear YAP localization. This modulation fairly coincided with the altered course of the KI-67 protein amount in conjunction with the percentage of KI-67-positive and thus proliferating cells. The inhibition of the ERK1/2 activity via U0126 yielded an unchanged strain related modulation of nuclear YAP localization, while YAP amount in whole cell extracts of strained cells was decreased. Administration of the YAP-inhibiting drug Verteporfin evoked a clear reduction of KI-67-positive and thus proliferating cells by approximately 65%, irrespective of strain. Our data reveal YAP as a regulator of strain-modulated proliferation which occurs in a MAPK independent fashion. PMID- 29017758 TI - In vitro and in vivo pharmacological characterization of ASP8477: A novel highly selective fatty acid amide hydrolase inhibitor. AB - Although exogenous agonists for cannabinoid (CB) receptors are clinically effective for treating chronic pain, global activation of brain CB receptors causes frequent central nervous system (CNS) side-effects. Fatty acid amide hydrolase (FAAH) is a primary catabolic enzyme for anandamide (AEA), an endogenous CB. Recently, we discovered a novel FAAH inhibitor, 3-pyridyl 4 (phenylcarbamoyl)piperidine-1-carboxylate (ASP8477). In vitro studies demonstrated that ASP8477 inhibited human FAAH-1, FAAH-1 (P129T) and FAAH-2 activity with IC50 values of 3.99, 1.65 and 57.3nM, respectively. ASP8477 at 10uM had no appreciable interactions with 65 different kinds of receptors, ion channels, transporters and enzymes, including CB1 and CB2 receptors and monoacylglycerol lipase. In adolescent rats, orally administered ASP8477 (0.3 10mg/kg) elevated AEA concentrations in both plasma and brain. In a capsaicin induced secondary hyperalgesia model, a pretreatment with ASP8477 significantly improved mechanical allodynia and thermal hyperalgesia at 0.3-3mg/kg p.o. ASP8477 also significantly improved mechanical allodynia in an L5/L6 spinal nerve ligation neuropathic pain model, with an ED50 value of 0.63mg/kg, and in a streptozotocin-induced diabetic neuropathy model at 3 and 10mg/kg p.o. Furthermore, ASP8477 significantly attenuated the reduction in rearing events at 1 and 3mg/kg p.o. in a monoiodoacetic acid-induced osteoarthritis model. Importantly, ASP8477 had no significant effect on motor coordination up to 30mg/kg p.o. These results indicate that ASP8477 is a potent, selective, and oral active FAAH inhibitor with activity in the CNS, with the potential to be a new analgesic agent with a wide safety margin. PMID- 29017757 TI - Effects of retinoic acid signaling on extraocular muscle myogenic precursor cells in vitro. AB - One major difference between limb and extraocular muscles (EOM) is the presence of an enriched population of Pitx2-positive myogenic precursor cells in EOM compared to limb muscle. We hypothesize that retinoic acid regulates Pitx2 expression in EOM myogenic precursor cells and that its effects would differ in leg muscle. The two muscle groups expressed differential retinoic acid receptor (RAR) and retinoid X receptor (RXR) levels. RXR co-localized with the Pitx2 positive cells but not with those expressing Pax7. EOM-derived and LEG-derived EECD34 cells were treated with vehicle, retinoic acid, the RXR agonist bexarotene, the RAR inverse agonist BMS493, or the RXR antagonist UVI 3003. In vitro, fewer EOM-derived EECD34 cells expressed desmin and fused, while more LEG derived cells expressed desmin and fused when treated with retinoic acid compared to vehicle. Both EOM and LEG-derived EECD34 cells exposed to retinoic acid showed a higher percentage of cells expressing Pitx2 compared to vehicle, supporting the hypothesis that retinoic acid plays a role in maintaining Pitx2 expression. We hypothesize that retinoic acid signaling aids in the maintenance of large numbers of undifferentiated myogenic precursor cells in the EOM, which would be required to maintain EOM normalcy throughout a lifetime of myonuclear turnover. PMID- 29017759 TI - Differential cytotoxic effects on odontoblastic cells induced by self-adhesive resin cements as a function of the activation protocol. AB - OBJECTIVES: To evaluate the cytotoxic effects of exposing odontoblast cells to a variety of commercial self-adhesive cements polymerized using different activation modes. METHODS: Five cements: MaxCem Elite (MAX), Bifix SE (BSE), G Cem LinkAce (GCE), Clearfil SA Luting (CAS), and RelyX U200 (U200) were mixed, dispensed into molds, and distributed in groups, according to polymerization protocols: immediate photoactivation; delayed photoactivation (10min self-curing plus light-activation); and chemical activation (no light exposure). Immortalized rat odontoblast cells (MDPC-23) were cultured. Cell viability was assessed by Trypan Blue staining and total cell death was assessed by annexin V-APC/7-AAD double staining and flow cytometry. Volatilized compounds from polymerized specimens of cements were evaluated by gas chromatography/mass spectrometry (GC MS). Data was analyzed with 2-way ANOVA/Tukey tests (alpha=0.05). RESULTS: Exposure to all of the cements tested significantly reduced the cell viability, irrespective of the activation protocol (p<0.05). The least harmful cements were CSA and U200. Total death of cells significantly increased when exposed to BSE, GCE, and MAX, especially when chemically activated (p<0.05). Characteristic apoptotic cells increased after exposure to cements, mainly for MAX, regardless of the activation mode. Chemical activation of MAX also induced necrosis. Moreover, GCE and MAX exhibited higher percentages of late apoptotic/dead cells. Chromatograms revealed 28 compounds released from the cements tested, some of them with known carcinogenic effects. Selection of self-adhesive cements and polymerization protocols affect the cytotoxicity and cell viability of odontoblastic cells. CLINICAL SIGNIFICANCE: Despite the simplified cementation protocol, care is needed when cementing indirect restorations with self-adhesive cements, especially on recently exposed dentin. This category of material may cause differential cytotoxic effects and should be considered when selecting a cement. This is particularly true in clinical cases of light attenuation, where the polymerization depends on chemical activation, inducing higher cytotoxic damages when using some of the cements tested. PMID- 29017760 TI - Mixed-mode fracture toughness of texturized LS2 glass-ceramics using the three point bending with eccentric notch test. AB - Here we use the 3-point bending with eccentric notch test (3-PBEN) to investigate the fracture behavior of a pressable and a CAD/CAM lithium disilicate (LS2) glass ceramics under combined mode-I and mode-II loading. The effect of the bulk texturization in the beams of the pressable LS2 is made visible through the fracture trajectory following the most energetically favorable path dictated by the crystallite alignment. The CAD/CAM LS2 shows an isotropic fracture mode but increasing fracture energy with mode-II contribution, similar to the pressable variant. PMID- 29017761 TI - ADM guidance-ceramics: Fatigue principles and testing. AB - BACKGROUND: Clinical failure of dental ceramics is usually reported as partial fracture of the restoration (chipping) or as catastrophic fracture of the whole structure. In contrast to metals, ceramics are linear-elastic, brittle materials exhibiting extremely low damage tolerance to failure. Well documented clinical and lab reports have shown this fracture event often occurs at loads far below their fracture strength due to intrinsic fatigue degradation via slow crack growth or cyclic fatigue mechanisms. The presence and development of surface flaws have a dominant role in damage accumulation and lifetime reduction of ceramic structures. AIMS: This ADM guidance document aims to summarize the aspects related to fatigue degradation of dental ceramics, reviewing the concepts of fatigue testing and furthermore aims to provide practical guidance to young scientists entering into fatigue related research. The description of fatigue strength is always accompanied by a clear understanding of the underlying fracture mechanisms. PMID- 29017762 TI - Occlusal loading during biting from an experimental and simulation point of view. AB - OBJECTIVES: Occlusal loading during clenching and biting is achieved by the action of the masticatory system, and forms the basis for the evaluation of the functional performance of prosthodontic and maxillofacial components. This review provides an overview of (i) current bite force measurement techniques and their limitations and (ii) the use of computational modelling to predict bite force. A brief simulation study highlighting the challenges of current computational dental models is also presented. METHODS: Appropriate studies were used to highlight the development and current bite force measurement methodologies and state-of-the-art simulation for computing bite forces using biomechanical models. RESULTS: While a number of strategies have been developed to measure occlusal forces in three-dimensions, the use of strain-gauges, piezo-electric sensors and pressure sheets remain the most widespread. In addition to experimental-based measurement techniques, bite force may be also estimated using computational models of the masticatory system. Simulations of different bite force models clearly show that the use of three-dimensional force measurements enriches the evaluation of masticatory functional performance. SIGNIFICANCE: Hence, combining computational modelling with three-dimensional force measurement techniques can significantly improve the evaluation of masticatory system and the functional performance of prosthodontic components. PMID- 29017763 TI - Modulating fat digestion through food structure design. AB - Dietary fats and oils are an important component of our diet and a significant contributor to total energy and intake of lipophilic nutrients and bioactives. We discuss their fate in a wide variety of engineered, processed and naturally occurring foods as they pass through the gastrointestinal tract and the implicit role of the food matrix within which they reside. Important factors that control fat and oil digestion include: 1) Their physical state (liquid or solid); 2) Dispersion of oil as emulsion droplets and control of the interfacial structure of emulsified oils; 3) The structure and rheology of the food matrix surrounding dispersed oil droplets; and 4) Alteration of emulsified oil droplet size and concentration. Using examples based on model foods such as emulsion gels and everyday foods such as almonds and cheese, we demonstrate that food structure design may be used as a tool to modulate fat and oil digestion potentially resulting in a number of targeted physiological outcomes. PMID- 29017764 TI - DNA methylation and antipsychotic treatment mechanisms in schizophrenia: Progress and future directions. AB - Antipsychotic response in schizophrenia is a complex, multifactorial trait influenced by pharmacogenetic factors. With genetic studies thus far providing little biological insight or clinical utility, the field of pharmacoepigenomics has emerged to tackle the so-called "missing heritability" of drug response in disease. Research on psychiatric disorders has only recently started to assess the link between epigenetic alterations and treatment outcomes. DNA methylation, the best characterised epigenetic mechanism to date, is discussed here in the context of schizophrenia and antipsychotic treatment outcomes. The majority of published studies have assessed the influence of antipsychotics on methylation levels in specific neurotransmitter-associated candidate genes or at the genome wide level. While these studies illustrate the epigenetic modifications associated with antipsychotics, very few have assessed clinical outcomes and the potential of differential DNA methylation profiles as predictors of antipsychotic response. Results from other psychiatric disorder studies, such as depression and bipolar disorder, provide insight into what may be achieved by schizophrenia pharmacoepigenomics. Other aspects that should be addressed in future research include methodological challenges, such as tissue specificity, and the influence of genetic variation on differential methylation patterns. PMID- 29017765 TI - Accuracy of shock index versus ABC score to predict need for massive transfusion in trauma patients. AB - BACKGROUND: Various scoring systems have been developed to predict need for massive transfusion in traumatically injured patients. Assessments of Blood Consumption (ABC) score and Shock Index (SI) have been shown to be reliable predictors for Massive Transfusion Protocol (MTP) activation. However, no study has directly compared these two scoring systems to determine which is a better predictor for MTP activation. The primary objective was to determine whether ABC or SI better predicted the need for MTP in adult trauma patients with severe hemorrhage. METHODS: This was a retrospective cohort study which included all injured patients who were trauma activations between January 1, 2009 and December 31, 2013 at an urban Level I trauma center. Patients <18 years old or with traumatic brain injury (TBI) were excluded. ABC and SI were calculated for each patient. MTP was defined as need for >10 units PRBC transfusion within 24h of emergency department arrival. Sensitivity, specificity, and area under the receiver operating characteristic curve (AUROC) were used to evaluate scoring systems' ability to predict effective MTP utilization. RESULTS: A total of 645 patients had complete data for analysis. Shock Index >=1 had sensitivity of 67.7% (95% CI 49.5%-82.6%) and specificity of 81.3% (95% CI 78.0%-84.3%) for predicting MTP, and ABC score >=2 had sensitivity of 47.0% (95% CI 29.8%-64.9%) and specificity of 89.8% (95% CI 87.2%-92.1%). AUROC analyses showed SI to be the strongest predictor followed by ABC score with AUROC values of 0.83 and 0.74, respectively. SI had a significantly greater sensitivity (P=0.035), but a significantly weaker specificity (P<0.001) compared to ABC score. CONCLUSION: ABC score and Shock Index can both be used to predict need for massive transfusion in trauma patients, however SI is more sensitive and requires less technical skill than ABC score. PMID- 29017766 TI - Survival and health related quality of life after severe trauma - a 15 years follow up study. AB - INTRODUCTION: As the primary treatment of patients with severe trauma continues to improve, increasing interest has been directed towards long-term survival and Health Related Quality of Life (HRQoL). In trauma patients, there are few studies describing long-term outcome using tools specifically directed at HRQoL. HYPOTHESIS: HRQoL measured with EQ-5D is significantly reduced compared to the Danish norm score 15 years after severe injury. MATERIALS AND METHODS: All patients more than 18 years of age, admitted to a level 1 trauma center from March 1996 to September 1997 were prospectively included and scored with Injury Severity Score (ISS). Survival status was recorded in May 2012 and EQ-5D questionnaires were sent out. RESULTS: 95 of the original 154 trauma patients were eligible for participation. The response rate was 66%. The average EQ-5D index score in the trauma population was significantly reduced compared to the index score in the Danish norm population (P=0.00, one-sample t-test). In addition, ISS is associated with HRQoL and ISS>=16 predicts poorer HRQoL. CONCLUSION: EQ-5D is significantly reduced 15years after severe trauma High ISS was associated with low HRQoL. Knowledge of the distribution and predictors of long-term disability can be used to develop more efficient prevention policies and to improve trauma care in general. PMID- 29017767 TI - Inducible NAD(H)-linked methylglyoxal oxidoreductase regulates cellular methylglyoxal and pyruvate through enhanced activities of alcohol dehydrogenase and methylglyoxal-oxidizing enzymes in glutathione-depleted Candida albicans. AB - BACKGROUND: High methylglyoxal content disrupts cell physiology, but mammals have scavengers to prevent glycolytic and mitochondrial dysfunctions. In yeast, methylglyoxal accumulation triggers methylglyoxal-oxidizing alcohol dehydrogenase (Adh1) activity. While methylglyoxal reductases and glyoxalases have been well studied in prokaryotes and eukaryotes, experimental evidence for methylglyoxal dehydrogenase (Mgd) and other catalytic activities of this enzyme affecting glycolysis and the tricarboxylic acid cycle is lacking. METHODS: A glycine-rich cytoplasmic Mgd protein, designated as Mgd1/Grp2, was isolated from glutathione depleted Candida albicans. The effects of Mgd1/Grp2 activities on metabolic pathophysiology were investigated using knockout and overexpression mutants. We measured glutathione-(in)dependent metabolite contents and metabolic effects, including viability, oxygen consumption, ADH1 transcripts, and glutathione reductase and alpha-ketoglutarate dehydrogenase activities in the mutants. Based on the findings, methylglyoxal-oxidizing proteins were monitored to determine effects of MGD1/GRP2 disruption on methylglyoxal-scavenging traits during glutathione deprivation. RESULTS: Methylglyoxal-oxidizing NAD(H)-linked Mgd1/Grp2 was found solely in glutathione auxotrophs, and it catalyzed the reduction of both methylglyoxal and pyruvate. MGD1/GRP2 disruptants showed growth defects, cell-cycle arrest, and methylglyoxal and pyruvate accumulation with mitochondrial impairment, regardless of ADH1 compensation. Other methylglyoxal-oxidizing enzymes were identified as key glycolytic enzymes with enhanced activity and transcription in MGD1/GRP2 disruptants, irrespective of glutathione content. CONCLUSIONS: Failure of methylglyoxal and pyruvate dissimilation by Mgd1/Grp2 deficiency leads to poor glutathione-dependent redox regulation despite compensation by Adh1. GENERAL SIGNIFICANCE: This is the first report that multifunctional Mgd activities contribute to scavenging methylglyoxal and pyruvate to maintain metabolic homeostasis and the redox pool via glycolytic enzymes and Adh1 expression. PMID- 29017768 TI - Analytical comparison of three different versions of a high-sensitivity cardiac troponin I assay over 10years. AB - BACKGROUND: Concerns have been raised on the long-term analytical performance of high-sensitivity cardiac troponin (hs-cTn) assays with respect to different reagent formulations, lots and instrumentation. Our goal for the present study was to compare three different versions of an hs-cTnI assay in two different study populations to evaluate if assay re-formulation over 10years has also affected the analytical results. METHODS: Beckman Coulter's CE marked hs-cTnI assay (Access hsTnI, 2017) was tested in 100 lithium heparin plasma samples first tested in 2007 with their prototype hs-cTnI assay and in 100 serum samples tested with their enhanced hs-cTnI assay in 2011 with comparison performed by Passing Bablok regression. The Beckman Coulter hs-cTnI results from 2017 and 2011 from the serum samples were also compared to the Abbott ARCHITECT i1000 hs-cTnI results (2013) with 3-fold differences used to identify possible outliers. Freeze/thaw stability testing (-20 degrees C) was also performed on normal cTnI (Beckman=4.0ng/L; Abbott=5.3ng/L) and high cTnI concentration (Beckman=77.6ng/L; Abbott=126.1ng/L) lithium heparin plasma pools for both hs-cTnI assays. RESULTS: After 3 freeze-thaws the Beckman hs-cTnI assay yielded minor decreases in concentrations (normal pool -0.7ng/L and high pool -12.6ng/L lower). Regression analyses yielded the following relationship between the Beckman hs-cTnI versions: 2017 hs-cTnI=2.0*(2007 prototype hs-cTnI)-5.1ng/L and 2017 hs-cTnI=1.04*(2011 enhanced hs-cTnI)-2.5ng/L. Compared to the Abbott 2013 hs-cTnI results, the 2011 Beckman enhanced version had 8 results 3-fold higher, with the 2017 Beckman version yielding 6 results 3-fold lower. CONCLUSIONS: The 2017 Beckman hs-cTnI version (Access hsTnI) is closely aligned with the previous enhanced hs-cTnI assay and appears to have reduced the frequency of aberrantly high results. PMID- 29017769 TI - Modified kernel principal component analysis using double-weighted local outlier factor and its application to nonlinear process monitoring. AB - Traditional kernel principal component analysis (KPCA) based nonlinear process monitoring method may not perform well because its Gaussian distribution assumption is often violated in the real industrial processes. To overcome this deficiency, this paper proposes a modified KPCA method based on double-weighted local outlier factor (DWLOF-KPCA). In order to avoid the assumption of specific data distribution, local outlier factor (LOF) is introduced to construct two LOF based monitoring statistics, which are used to substitute for the traditional T2 and SPE statistics, respectively. To provide better online monitoring performance, a double-weighted LOF method is further designed, which assigns the weights for each component to highlight the key components with significant fault information, and uses the moving window to weight the historical statistics for reducing the drastic fluctuations in the monitoring results. Finally, simulations on a numerical example and the Tennessee Eastman (TE) benchmark process are used to demonstrate the superiority of the proposed DWLOF-KPCA method. PMID- 29017770 TI - Longitudinal analysis of serum interleukin-18 in patients with familial Mediterranean fever carrying MEFV mutations in exon 10. AB - BACKGROUND: Familial Mediterranean fever (FMF) is an autoinflammatory disease caused by mutations in the MEFV gene. Mutations in exon 10 are associated with typical FMF phenotypes, and patients with exon 10 mutations have higher serum levels of interleukin (IL)-18 both during attacks and afebrile phases, compared to those without exon 10 mutations. However, longitudinal changes of serum IL-18 in FMF have not been fully characterized. METHODS: We serially evaluated serum levels of pro-inflammatory cytokines, including IL-18, in 12 patients with FMF carrying exon 10 mutations, all of whom showed typical FMF attacks. RESULTS: Markedly high concentrations of IL-18 were observed in all patients at diagnosis (5099+/-6084pg/mL). Serum IL-18 levels declined progressively after colchicine treatment in 7 patients (group A), whereas 5 patients showed continued elevation of circulating IL-18, despite declines in IL-6 and neopterin (group B). The mean follow-up times in the two groups were 4.7+/-3.2 and 4.8+/-1.5 years, respectively. The mean serum IL-18 level at the last hospital visit in group B was 4190+/-2610 pg/mL. There were no differences in onset age, initial IL-18 levels, and colchicine doses between the groups. FMF attacks almost disappeared in both groups, but there were trends towards more frequent subtle symptoms such as abdominal discomfort in group B. CONCLUSIONS: Sustained elevation of serum IL 18 may suggest the presence of persistent subclinical inflammation. Therefore, longitudinal examination of serum IL-18 may contribute to better follow-up of FMF patients with exon 10 mutations. PMID- 29017771 TI - Association of interleukin 13 gene polymorphisms and plasma IL 13 level with risk of systemic lupus erythematosus. AB - Interleukin (IL) 13 plays a critical role in inflammatory diseases, including systemic lupus erythematosus (SLE). This study aims to explore the potential association of IL-13 polymorphisms with the risk of SLE. We genotyped IL-13 rs20541, rs848 and rs1295686 using Snapshot SNP genotyping assays. Plasma IL-13 level was determined by enzyme-linked immunosorbent assay (ELISA). We found that rs20541 was associated with increased risk of SLE (CT vs. CC: adjusted OR=1.43, 95%CI, 1.04-1.99, P=.030; TT vs. CC: adjusted OR=1.73, 95%CI, 1.10-2.73, P=.018; CT/TT vs. CC: adjusted OR=1.50, 95%CI, 1.10-2.04, P=.010; T vs. C adjusted OR=1.34, 95%CI, 1.08-1.93, P=.031). CT and TT genotypes in rs20541 were associated with increased risk of renal disorder in SLE (CT vs. CC: adjusted OR=1.97, 95%CI, 1.18-3.28, P=.009; TT vs. CC: adjusted OR=2.42, 95%CI, 1.22-4.77, P=.011). Moreover, The concentration of IL-13 was significantly elevated in rs20541 CT/TT genotypes compared with CC genotype (P<.001). These results suggest that rs20541 CT/TT genotypes may be a risk factor for SLE, probably by increasing the level of IL-13. PMID- 29017772 TI - T cell activation Rho GTPase activating protein (TAGAP) is upregulated in clinical and experimental arthritis. AB - Genome-wide association studies have identified various susceptibility variants and loci associated with incidence of rheumatoid arthritis (RA) in different populations. One of these is T cell activation Rho GTPase activating protein (TAGAP). The present study sought to measure the expression of TAGAP in RA patients, CD4+ T cells subsets from healthy humans and in mice with collagen induced arthritis. Peripheral blood mononuclear cells (PBMC) from RA patients and tissues of arthritic mice at different stages of the disease were used for the evaluation of TAGAP mRNA expression. Increased TAGAP expression was observed in RA patients compared to healthy controls, and there were differences in the expression level of TAGAP in the tissues of mice with experimental arthritis. Gene expression in CD4+ T cells from healthy humans was greatest 4 h after activation and protein expression was greatest after 24 h. The expression of TAGAP was not correlated with CD4+ lymphocyte subsets which were enriched for functionally defined subsets (Th17, Treg, Th1), further indicating its utility as an indicator of lymphocyte activation. These findings indicate that increased TAGAP expression is a distinguishing feature of inflammatory disease and further highlight the role of TAGAP in RA susceptibility. PMID- 29017773 TI - TLR11 or TLR12 silencing reduces Leishmania major infection. AB - Toll-like receptors (TLRs) recognize the pathogen-associated molecular patterns (PAMPs) and induce host-protective immune response. The role of the profilin recognizing TLR11/TLR12 in Leishmania infection is unknown. Herein, we report that TLR11/ TLR12 expression increases in virulent L. major-infected macrophages but is prevented by miltefosine, an anti-leishmanial drug. While lipohosphoglycan (LPG) increases, LPG or TLR2 blockade prevents, the heightened TLR11/TLR12 expression. LPG-TLR2 interaction triggers MyD88- and TIRAP-mediated signaling enhancing ERK-1/2 activation and increased production of IL-10 that promotes TLR11/TLR12 expression. Profilin expression was higher in the virulent L. major and L. donovani parasites than that observed in the avirulent parasites. TLR11 or TLR12 silencing reduces parasite burden and increases IFN-gamma, but reduces IL 4, production indicating that TLR11 and TLR12 play a pro-leishmanial role. PMID- 29017775 TI - SID Resident Retreat Increases Retention in Academic Practice. PMID- 29017774 TI - An alternative biomarker-based approach for the prediction of proteins known to sensitize the respiratory tract. AB - Many natural and industrial proteins are known to have properties that can result in type I hypersensitivity, however, to date, no validated test system exists that can predict the sensitizing potential of these allergens. Thus, the objective of this study was to develop a protocol based on the myeloid cell-based Genomic Allergen Rapid Detection (GARD) assay that can be used to assess and predict the capacity of protein allergens known to induce sensitization in the respiratory tract. Cellular responses induced by eight selected proteins were assessed using transcriptional profiling, flow cytometry and multiplex cytokine analysis. 391 potential biomarkers were identified as a predictive signature and a series of cross-validations supported the validity of the model. These results together with biological pathway analysis of the transcriptomic data indicate that the investigated cell system is able to capture relevant events linked to type I hypersensitization. PMID- 29017776 TI - Early outcomes of percutaneous pulmonary valve implantation using the Edwards SAPIEN XT transcatheter heart valve system. AB - BACKGROUND: Patients with congenital or acquired heart defects affecting the pulmonary valve and right ventricular outflow tract (RVOT) commonly require multiple surgical interventions, resulting in significant morbidity. A less invasive alternative is percutaneous pulmonary valve implantation (PPVI). Though studies have previously reported the safety and efficacy of the early generation transcatheter heart valves (THVs), data on more recent devices are severely lacking. METHODS AND RESULTS: We performed a multinational, multicentre, retrospective, observational registry analysis of patients who underwent PPVI using the Edwards SAPIEN XT THV. Of the 46 patients that were enrolled, the majority had tetralogy of Fallot as the underlying diagnosis (58.7%), and stentless xenograft as the most common RVOT anatomy (34.8%). Procedural success rate was high (93.5%), with a low frequency of periprocedural complications and adverse events (6.5% and 10.9%, respectively). At 30days post-procedure, NYHA class had improved significantly (90.6% were at NYHA I or II). The rate of moderate/severe pulmonary regurgitation had decreased from 76.1% at baseline to 5.0% at 30days, and the calculated peak systolic gradient had decreased from 45.2 (SD+/-21.3) mmHg to 16.4 (SD+/-8.0) mmHg, with these values remaining low up to 2years. CONCLUSIONS: The data suggest the efficacy and safety of the SAPIEN XT THV in PPVI in common anatomies in patients with conduits, as well as those with native pulmonary valves or transannular patches. Continued data collection is necessary to verify long-term findings. CLINICALTRIALS. GOV IDENTIFIER: NCT02302131. PMID- 29017777 TI - Predictive value of inter-atrial block for new onset or recurrent atrial fibrillation: A systematic review and meta-analysis. AB - BACKGROUND AND OBJECTIVES: Inter-atrial block (IAB) is characterized by a delay of inter-atrial conduction and is defined electrocardiographically by a P-wave duration (PWD)>120ms. Several studies have implicated IAB in the development of new onset atrial fibrillation (AF), whereas others have reported no significant associations. Moreover, there has been no systematic evaluation of the predictive value of IAB in AF recurrence. Therefore, we conducted a systematic review and meta-analysis to examine whether IAB predicts new onset AF or AF recurrence. METHODS: PubMed and Embase databases were searched through 30th July 2017 for studies investigating the relationship between IAB and AF. RESULTS: The initial search identified 260 studies, of which 16 studies met the inclusion criteria. This meta-analysis included 18,204 patients (mean age 56+/-13, 48% male) with a mean follow-up period of 15.1years. IAB significantly predicted new onset AF (hazard ratio [HR]: 2.42, 95% confidence interval [CI]: 1.44 to 4.07, P=0.001; 84%). For partial IAB, the risk of new onset AF did not reach statistical significance (HR: 1.42, 95% CI: 0.85 to 2.34; P=0.18; I2=13%). Contrastingly, advanced IAB was a significant predictor of new onset AF with a pooled HR of 2.58 (95% CI: 1.35 to 4.96; P<0.01; I2=67%). IAB also predicted AF recurrence after ablation (HR: 2.59, 95% CI: 1.35 to 4.96; P<0.01; I2=67%). CONCLUSIONS: IAB is a significant predictor of both new onset AF and AF recurrence. PMID- 29017778 TI - Patent Ductus Arteriosus closure in preterms less than 2kg: Surgery versus transcatheter. AB - BACKGROUND: As new devices come into the market, percutaneous techniques improve and interventionalists become more experienced; percutaneous closure gets more common in preterms. In this study we aimed to compare efficacy and safety of Patent Ductus Arteriosus closure surgically versus transcatheter method in preterms <2kg. Best of our knowledge this study is the first one that compares outcomes of surgery and percutaneous Patent Ductus Arteriosus closure in preterms. METHODS & RESULTS: Between the dates July 1997 to October 2014 in our center Patent Ductus Arteriosus of 26 patients <2kg were closed percutaneously (Group A) and 31 less than 2kg operated (Group B). Weight of patients in percutaneous Patent Ductus Arteriosus closure group was significantly more than the surgery group. Mean gestational age of the patients in Group A was 30+/ 1.8weeks, in group B was 28.6+/-3.5weeks. In group A; all cases were closed successfully except 4 cases: device embolization in 2, cardiac tamponade and iatrogenic aortic coarctation were seen. Pneumomediastinum and chylothorax were the major complications of the surgery group. There was no statistically significance between complication and success rates between two groups. CONCLUSION: Percutaneous Patent Ductus Arteriosus closure is the candidate for taking the place of surgery in preterms. However, it is not applied routinely; can only be done in fully equipped large centers by experienced interventionalists. PMID- 29017779 TI - Targeted inhibition of hantavirus replication and intracranial pathogenesis by a chimeric protein-delivered siRNA. AB - Hantavirus (HV) infection, which underlies hantavirus hemorrhagic fever with renal syndrome and hantavirus pulmonary syndrome, remains to be a severe clinical challenge. Here, we synthesized small interfering RNAs (siRNAs) that target the encoding sequences of HV strain 76-118, and validated their inhibitory role in virus replication in HV-infected monkey kidney Vero E6 cells. A chimeric protein, 3G1-Ckappa-tP, consisting of a single-chain antibody fragment (3G1) against the HV surface envelop glycoprotein, the constant region of human immunoglobulin kappa chain (Ckappa), and truncated protamine (amino acids 8-29, tP), was further generated. The fusion protein showed high affinity to HV antigen on the infected cell membrane, and internalized through clathrin-mediated endocytosis; it bound to siRNAs via the basic nucleic acid-rich protamine fragment, leading to their specific delivery into HV-infected cells and efficient inhibition of virus replication. An encephalitis mouse model was established via intracranial HV administration. Intraperitoneal injection of siRNAs complexed with 3G1-Ckappa-tP achieved specific distribution of siRNAs in HV-infected brain cells, significantly reduced HV antigen levels, and effective protection from HV infection-derived animal death. These results provide a compelling rationale for novel therapeutic protocols designed for HV infection and related disorders. PMID- 29017781 TI - Long-term effects of sport concussion on cognitive and motor performance: A review. AB - Motor and cognitive dysfunction is intractable sequela in the acute stage of concussion. While typical concussion recovery occurs in two weeks, empirical evidence suggests that some sequela persist beyond this period, though there is inconsistency surrounding the duration the sequela persist. In part, confusion around the issue is limited by the volume of literature evaluating those with a concussion history, permitting vast interpretations of significance. The purpose of this paper is to review the concussion history literature, summarizing the long-term effects of concussion history on motor and cognitive performance. Additionally, this review intends to provide direction and options of future investigations addressing the long-term effects of concussion on motor and cognitive performance. PMID- 29017780 TI - Using theta and alpha band power to assess cognitive workload in multitasking environments. AB - Cognitive workload is of central importance in the fields of human factors and ergonomics. A reliable measurement of cognitive workload could allow for improvements in human machine interface designs and increase safety in several domains. At present, numerous studies have used electroencephalography (EEG) to assess cognitive workload, reporting the rise in cognitive workload to be associated with increases in theta band power and decreases in alpha band power. However, results have been inconsistent with some failing to reach the required level of significance. We hypothesized that the lack of consistency could be related to individual differences in task performance and/or to the small sample sizes in most EEG studies. In the present study we used EEG to assess the increase in cognitive workload occurring in a multitasking environment while taking into account differences in performance. Twenty participants completed a task commonly used in airline pilot recruitment, which included an increasing number of concurrent sub-tasks to be processed from one to four. Subjective ratings, performances scores, pupil size and EEG signals were recorded. Results showed that increases in EEG alpha and theta band power reflected increases in the involvement of cognitive resources for the completion of one to three subtasks in a multitasking environment. These values reached a ceiling when performances dropped. Consistent differences in levels of alpha and theta band power were associated to levels of task performance: highest performance was related to lowest band power. PMID- 29017782 TI - Eyes have ears: Indexing the orienting response to sound using pupillometry. AB - The rare occurrence of a sound deviating from the auditory background tends to trigger attentional orienting. While some sympathetic physiological responses can be used to index this orienting response, findings surrounding the pupillary dilation response (PDR) as a proxy for the orienting response are conflicting. The current study was tailor-designed to examine whether the PDR satisfies specific criteria of an orienting response index, namely the classic habituation pattern and a sensitivity to the size of the deviation. The PDR decrement to a repeated standard sound, recovery to a deviant sound, and dishabituation to the re-presentation of the standard were assessed for small and large deviations embedded in irrelevant auditory sequences. The PDR not only showed habituation and dishabituation, but also recovered in correspondence with the magnitude of the acoustic deviation. This consistency between variations of the PDR and orienting response's properties indicates that the PDR is a valid index of the auditory orienting response. PMID- 29017783 TI - Design and examination of potent pseudosubstrate-based oligonucleotide inhibitors against bacterial topoisomerase IV. AB - Topoisomerase IV is an enzyme that is mainly responsible for unwinding interlocked DNA strands at the final stage of prokaryotic DNA replication. Due to its exclusivity in prokaryotes, topoisomerase IV has been identified as a validated target for quinolone-based antibiotics in the past years for treating bacterial infection. In consideration that bacterial resistance to such antibiotics has occurred constantly, several newly designed pseudosubstrate oligonucleotides as DNA topoisomerase IV inhibitors have been examined during our recent investigations. Among them, the nick-, gap- and mismatched base pair containing oligonucleotides displayed significantly high inhibitory effects toward topoisomerase IV. It is our anticipation that the outcomes of our current studies could be beneficial for the future development of pseudosubstrate-based enzyme inhibitors as well as new types of antibiotics. PMID- 29017784 TI - Arginine-rich cross-linking peptides with different SV40 nuclear localization signal content as vectors for intranuclear DNA delivery. AB - The major barriers for intracellular DNA transportation by cationic polymers are their toxicity, poor endosomal escape and inefficient nuclear uptake. Therefore, we designed novel modular peptide-based carriers modified with SV40 nuclear localization signal (NLS). Core peptide consists of arginine, histidine and cysteine residues for DNA condensation, endosomal escape promotion and interpeptide cross-linking, respectively. We investigated three polyplexes with different NLS content (10 mol%, 50 mol% and 90 mol% of SV40 NLS) as vectors for intranuclear DNA delivery. All carriers tested were able to condense DNA, to protect it from DNAase I and were not toxic to the cells. We observed that cell cycle arrest by hydroxyurea did not affect transfection efficacy of NLS-modified carriers which we confirmed using quantitative confocal microscopy analysis. Overall, peptide carrier modified with 90 mol% of SV40 NLS provided efficient transfection and nuclear uptake in non-dividing cells. Thus, incorporation of NLS into arginine-rich cross-linking peptides is an adequate approach to the development of efficient intranuclear gene delivery vehicles. PMID- 29017785 TI - Carborane-linked 2'-deoxyuridine 5'-O-triphosphate as building block for polymerase synthesis of carborane-modified DNA. AB - 5-[(p-Carborane-2-yl)ethynyl]-2'-deoxyuridine 5'-O-triphosphate was synthesized and used as a good substrate in enzymatic construction of carborane-modified DNA or oligonucleotides containing up to 21 carborane moieties in primer extension reactions by DNA polymerases. PMID- 29017786 TI - Identification of novel PI3K inhibitors through a scaffold hopping strategy. AB - A scaffold hopping strategy, including intellectual property availability assessment, was successfully applied for the discovery of novel PI3K inhibitors. Compounds were designed based on the chemical structure of the lead compound ETP 46321, a potent PI3K inhibitor, previously reported by our group. The new generated compounds showed good in vitro potency and selectivity, proved to inhibit potently the phosphorylation of AKTSer473 in cells and demonstrated to be orally bioavailable, thus becoming potential back-up candidates for ETP-46321. PMID- 29017787 TI - Dual antioxidant structures with potent anti-inflammatory, hypolipidemic and cytoprotective properties. AB - Novel amide derivatives of trolox, 3,5-di-tert-butyl-4-hydroxybenzoic acid, (E)-3 (3,5-di-tert-butyl-4-hydroxyphenyl)acrylic acid and cinnamic acid with cysteamine and l-cysteine ethyl ester were synthesised. In four cases, the disulfide derivatives were also isolated and tested. All compounds were examined for antioxidant activity, expressed as their ability to inhibit lipid peroxidation and to scavenge free radicals. They were found to demonstrate up to 17-fold better activity than that of the parent antioxidant acids. They could reduce acute inflammation up to 87%. The most active antioxidant compounds were further tested for their in vivo hypolipidemic effect, which ranged from 47% to 73%, and for their ability to protect the liver against oxidative toxicity caused by high paracetamol dose. The disulfide derivatives of 3,5-di-tert-butyl-4-hydroxybenzoic acid and cinnamic acid had no antioxidant activity and presented equal or lower anti-inflammatory effect than their thiol analogues, indicating that their molecular characteristics may not permit biological barrier penetration. PMID- 29017789 TI - "You're right, you're right, I know you're right". PMID- 29017788 TI - Zaluzanin C (ZC) induces osteoblast differentiation through regulating of osteogenic genes expressions in early stage of differentiation. AB - Zaluzanin C (ZC) is a sesquiterpene lactones used in herbal medicines. This study examined the effects of ZC on osteoblast differentiation. ZC-induced mRNA expressions levels of osteogenic genes in C3H10T1/2 and MC3T3-E1 cells were determined by RT-PCR and qPCR. ZC regulated the expression of key osteogenic genes in the early stage of differentiation, including distal-less homeobox 5 (Dlx5), DNA-binding protein inhibitor (Id1) and Runt-related transcription factor 2 (Runx2). In addition, ZC increased Runx2 promoter activity, as assessed via a luciferase assay, and Runx2 protein level. These results suggest that ZC may enhance osteoblast differentiation by upregulating the expression of osteogenic genes, especially early stage like as Dlx5, Id1 and Runx2. PMID- 29017790 TI - Why do some conduits get infected and others don't? PMID- 29017791 TI - Preoperative thoracic false lumen branches are predictors of aortic enlargement after stent grafting for DeBakey IIIb aortic dissection. AB - OBJECTIVE: The study objective was to assess the effect of preoperative thoracic false lumen branches on thoracic aortic enlargement along the stent graft after thoracic endovascular aortic repair for DeBakey IIIb aortic dissection. METHODS: From January 2011 to December 2013, 67 patients who underwent thoracic endovascular aortic repair for DeBakey IIIb aortic dissection were retrospectively investigated. We assessed preoperative thoracic false lumen branches and diameter measurements at the level of the tracheal carina. Patients with a median follow-up of 12.2 months (interquartile range, 4.3-26.6 months) were categorized into 2 groups based on a receiver operating characteristic curve analysis: group A (preoperative thoracic false lumen branches >=8, n = 28) and group B (preoperative thoracic false lumen branches <8, n = 39). Diameter changes over time were evaluated using a mixed model approach. A multivariate Cox regression analysis was used to study the influence of the preoperative thoracic false lumen branches on thoracic aortic enlargement along the stent graft. RESULTS: Six patients experienced thoracic aortic enlargement along the stent graft during follow-up (6 in group A, 0 in group B). The cumulative thoracic aortic enlargement along the stent-graft rate was higher in group A than in group B (log-rank P < .01). Diameter data showed significantly more reduction of the thoracic false lumen from preprocedure to 12 months in group B than in group A (change difference, 2.51; standard error, 0.99; P = .01). Complete false lumen thrombosis was more prominent in group B than in group A at each follow-up time point. After multivariate adjustment, preoperative thoracic false lumen branches were associated with thoracic aortic enlargement along the stent graft (hazard ratio, 2.92; 95% confidence interval, 1.06-8.01). CONCLUSIONS: Preoperative thoracic false lumen branches are a morphologic predictor of thoracic aortic enlargement along the stent graft in DeBakey IIIb aortic dissection after thoracic endovascular aortic repair. PMID- 29017793 TI - Coming soon to an operating theater near you. PMID- 29017792 TI - Three-dimensional printing of navigational template in localization of pulmonary nodule: A pilot study. AB - BACKGROUND: Small pulmonary nodules are a common problem, especially with the wide implementation of lung cancer-screening program. This poses a great challenge to thoracic surgeons because of the difficulty of nodule localization. We recently built an efficient, customized navigational template using 3 dimensional (3D) printing technology to facilitate the procedure of lung nodule localization. This study aims to investigate its feasibility in clinical application. METHODS: Patients with peripheral lung nodules (<2 cm) were enrolled. Preadmission computed tomography images were downloaded and reconstructed into a 3D model. A digital model of the navigational template was designed via computer-aided design software and then exported into 3D printer to produce physical template. The precision of the template-guided nodule localization and associated complications were evaluated. RESULTS: A total of 16 patients were enrolled, and 18 nodules were localized through template-guided localization. The success rate of lung nodule localization was 100%, and the median time of localization was 13 minutes (range 10-16 minutes). In our series, no significant complication occurred, except for 2 asymptomatic pneumothoraxes. The median deviation between the localizer and the center of the nodule was 10.0 mm, ranging from 5 to 20 mm. CONCLUSIONS: This novel navigational template created by 3D printing technology is feasible, and it has acceptable accuracy for the application in lung nodule localization. The use of this navigational template could facilitate the procedure of lung nodule localization and may potentially break the dependence of percutaneous localization on computed tomography scanning. PMID- 29017794 TI - Size matters: Indexed left atrial size predicts late survival after aortic valve replacement. PMID- 29017795 TI - Long-term effects of sleep deprivation on neuronal activity in four hypothalamic areas. AB - Lack of adequate sleep has become increasingly common in our 24/7 society. Unfortunately diminished sleep has significant health consequences including metabolic and cardiovascular disease and mental disorders including depression. The pathways by which reduced sleep adversely affects physiology and behavior are unknown. We found that 6h of sleep deprivation in adult male rats induces changes in neuronal activity in the lateral hypothalamus, the paraventricular nucleus, the arcuate nucleus and the mammillary bodies. Surprisingly, these alterations last for up to 48h. The data show that sleep loss has prolonged effects on the activity of multiple hypothalamic areas. Our data indicate also that measuring electroencephalographic slow wave activity underestimates the amount of time that the hypothalamus requires to recover from episodes of sleep deprivation. We propose that these hypothalamic changes underlie the well-established relationship between sleep loss and several diseases such as metabolic disorders, stress and depression and that sufficient sleep is vital for autonomic functions controlled by the hypothalamus. PMID- 29017796 TI - Anti-inflammatory effect of collagen tripeptide in atopic dermatitis. AB - BACKGROUND: Atopic dermatitis (AD) is a chronic, pruritic inflammatory skin disease in which type 2 allergic inflammation plays an important role. Collagen tripeptide (CTP) is a functional collagen fraction with a high content of Gly-X-Y tripeptides. OBJECTIVE: To examine the effect of CTP on inflammation in AD. METHODS: Levels of inflammatory cytokines and chemokines, such as thymus- and activation-regulated chemokine (TARC), macrophage-derived chemokine, and thymic stromal lymphopoietin (TSLP), were examined in human keratinocytes supplemented with or without CTP under AD-like inflammation. To evaluate the functional effect of CTP, a migration assay was performed using the supernatants of cultured keratinocytes treated with CTP. The signaling pathway for CTP inhibitory activity was also determined. Additionally, we conducted a clinical trial with seventeen AD patients who were assigned randomly to receive daily for 12 weeks either 3.9g of a CTP product or normal collagen peptides (CP). The eruption area, severity scoring of atopic dermatitis (SCORAD), skin hydration, transepidermal water loss (TEWL), and itching score were evaluated. The levels of TARC, serum IgE, lactate dehydrogenase, and eosinophil counts at week 12 were also compared with those at the start of administration. RESULTS: In human keratinocytes, TARC and TSLP mRNA and protein levels were inhibited significantly by CTP treatment under AD-like inflammation. Supernatants obtained from CTP-treated keratinocytes inhibited cell migration. STAT1 phosphorylation was significantly decreased by CTP in a dose dependent manner. In the clinical trial, 13 patients (7 for CTP, 6 for CP) completed the study. The eruption area, SCORAD, and TEWL at week 12 were reduced significantly compared with the initial values in the CTP but not CP group. A significant reduction in the serum TARC level was observed only in the CTP group at week 12. Other blood parameters were not improved in either group. CONCLUSION: CTP may have therapeutic benefit for AD by inhibiting type 2-skewed allergic inflammation. PMID- 29017797 TI - Palmoplantar keratoderma in Slurp1/Slurp2 double-knockout mice. PMID- 29017798 TI - Recombinant anticoccidial vaccines - a cup half full? AB - Eimeria species parasites can cause the disease coccidiosis, most notably in chickens. The occurrence of coccidiosis is currently controlled through a combination of good husbandry, chemoprophylaxis and/or live parasite vaccination; however, scalable, cost-effective subunit or recombinant vaccines are required. Many antigens have been proposed for use in novel anticoccidial vaccines, supported by the capacity to reduce disease severity or parasite replication, increase body weight gain in the face of challenge or improve feed conversion under experimental conditions, but none has reached commercial development. Nonetheless, the protection against challenge induced by some antigens has been within the lower range described for the ionophores against susceptible isolates or current live vaccines prior to oocyst recycling. With such levels of efficacy it may be that combinations of anticoccidial antigens already described are sufficient for development as novel multi-valent vaccines, pending identification of optimal delivery systems. Selection of the best antigens to be included in such vaccines can be informed by knowledge defining the natural occurrence of specific antigenic diversity, with relevance to the risk of immediate vaccine breakthrough, and the rate at which parasite genomes can evolve new diversity. For Eimeria, such data are now becoming available for antigens such as apical membrane antigen 1 (AMA1) and immune mapped protein 1 (IMP1) and more are anticipated as high-capacity, high-throughput sequencing technologies become increasingly accessible. PMID- 29017799 TI - Automated segmentation of abdominal subcutaneous adipose tissue and visceral adipose tissue in obese adolescent in MRI. AB - PURPOSE: To develop a reliable and reproducible automatic technique to segment and measure SAT and VAT based on MRI. MATERIALS AND METHODS: Chemical-shift water fat MRI were taken on twelve obese adolescents (mean age: 16.1+/-0.6, BMI: 31.3+/ 2.3) recruited under the health monitoring program. The segmentation applied a spoke template created using Midpoint Circle algorithm followed by Bresenham's Line algorithm to detect narrow connecting regions between subcutaneous and visceral adipose tissues. Upon satisfaction of given constrains, a cut was performed to separate SAT and VAT. Bone marrow was consisted in pelvis and femur. By using the intensity difference in T2*, a mask was created to extract bone marrow adipose tissue (MAT) from VAT. Validation was performed using a semi automatic method. Pearson coefficient, Bland-Altman plot and intra-class coefficient (ICC) were applied to measure accuracy and reproducibility. RESULTS: Pearson coefficient indicated that results from the proposed method achieved high correlation with the semi-automatic method. Bland-Altman plot and ICC showed good agreement between the two methods. Lowest ICC was obtained in VAT segmentation at lower regions of the abdomen while the rests were all above 0.80. ICC (0.98-0.99) also indicated the proposed method performed good reproducibility. CONCLUSION: No user interaction was required during execution of the algorithm and the segmented images and volume results were given as output. This technique utilized the feature in the regions connecting subcutaneous and visceral fat and T2* intensity difference in bone marrow to achieve volumetric measurement of various types of adipose tissue in abdominal site. PMID- 29017800 TI - Plasticity of the epigenome during early-life stress. AB - Early life adversity remains a significant risk factor for the development of a host of negative behavioural and pathological outcomes in adulthood long after the stressor is over. Recent evidence indicates that these lasting effects of ELS may occur via alterations in the epigenetic landscape. Here, we review the main findings of the effects of early life adversity on DNA methylation, histone post translational modification, and non-coding RNAs in the context of psychiatric disease in animal models and human cohorts. We specifically explore how early life adversity alters epigenetic patterns in both a global manner, and in specific candidate genes that play a role in relevant systems such as the hypothalamic-pituitary-adrenal axis, as well as neurotransmitter and neuroendocrine signalling. We also discuss how individual factors, such as genetics, sex, and age, as well as the type, and timing of early life adversity, can create differential susceptibility and significantly moderate outcomes. Although challenges remain in deciphering the complexity of how the early environment interacts with individual factors to determine epigenetic patterns, as well as how to translate these mechanistic findings into clinically relevant populations, the reviewed literature sheds light on the potential of the field to identify effective interventions for vulnerable individuals. PMID- 29017801 TI - Influence of Increased Posterior Tibial Slope in Total Knee Arthroplasty on Knee Joint Biomechanics: A Computational Simulation Study. AB - BACKGROUND: The reconstructed posterior tibial slope (PTS) plays a significant role in restoring knee kinematics in cruciate-retaining-total knee arthroplasty (TKA). A few studies have reported the effect of the PTS on biomechanics. METHODS: This study investigates the effect of the PTS on tibiofemoral (TF) kinematics, patellofemoral (PF) contact stress, and forces at the quadriceps, posterior cruciate ligament (PCL) and collateral ligament after cruciate retaining-TKA using computer simulations. The simulation for the validated TKA finite element model was performed under deep knee bend condition. All analyses were repeated from -3 degrees to 15 degrees PTS in increments of 3 degrees . RESULTS: The kinematics on the TF joint translated increasingly posteriorly when the PTS increased. Medial and lateral contact points translated in posterior direction in extension and flexion as PTS increased. The maximum contact stress on the PF joint and quadriceps, and collateral ligament force decreased when the PTS increased. An implantation of the tibial plate with increased PTS reduced the PCL load. Physiologic insert movement led to an increasingly posterior position of the femur and reduced quadriceps force especially for knee flexion angles above high flexion (120 degrees ) when compared to TKA with a decreased slope of the tibial base plate. CONCLUSION: An increase in the PTS increased medial and lateral movements without paradoxical motion. However, an excessive PTS indicated progressive loosening of the TF joint gap due to a reduction in collateral ligament tension during flexion. PMID- 29017802 TI - Big Data and Total Hip Arthroplasty: How Do Large Databases Compare? AB - BACKGROUND: Use of large databases for orthopedic research has become extremely popular in recent years. Each database varies in the methods used to capture data and the population it represents. The purpose of this study was to evaluate how these databases differed in reported demographics, comorbidities, and postoperative complications for primary total hip arthroplasty (THA) patients. METHODS: Primary THA patients were identified within National Surgical Quality Improvement Programs (NSQIP), Nationwide Inpatient Sample (NIS), Medicare Standard Analytic Files (MED), and Humana administrative claims database (HAC). NSQIP definitions for comorbidities and complications were matched to corresponding International Classification of Diseases, 9th Revision/Current Procedural Terminology codes to query the other databases. Demographics, comorbidities, and postoperative complications were compared. RESULTS: The number of patients from each database was 22,644 in HAC, 371,715 in MED, 188,779 in NIS, and 27,818 in NSQIP. Age and gender distribution were clinically similar. Overall, there was variation in prevalence of comorbidities and rates of postoperative complications between databases. As an example, NSQIP had more than twice the obesity than NIS. HAC and MED had more than 2 times the diabetics than NSQIP. Rates of deep infection and stroke 30 days after THA had more than 2-fold difference between all databases. CONCLUSION: Among databases commonly used in orthopedic research, there is considerable variation in complication rates following THA depending upon the database used for analysis. It is important to consider these differences when critically evaluating database research. Additionally, with the advent of bundled payments, these differences must be considered in risk adjustment models. PMID- 29017803 TI - Increasing Perioperative Communication With Automated Mobile Phone Messaging in Total Joint Arthroplasty. AB - BACKGROUND: Automated mobile phone messaging has not been reported in total joint arthroplasty (TJA). Our purpose was to compare Press Ganey (PG) and Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) scores between TJA patients who did and did not receive perioperative automated mobile phone messages. METHODS: Patients were prospectively enrolled and received messages for 1 week prior until 2 weeks after TJA. Message content included reminders, activity, and pain control. Patients answered select PG/HCAHPS and questions regarding their experience with the automated communication platform. Average PG/HCAHPS scores were compared to historical TJA patients in the 3-year window prior (control group) with significance P < .05. RESULTS: Thirty-seven consecutive patients were approached and 92% (n = 34) were enrolled. The experimental group was 47% male, with 80% patients between 51 and 75 years. The experimental (n = 30) and control groups (n = 26) were similar. Patients receiving messages were more likely to have a good understanding of health responsibilities (P = .024) and feel that the care team demonstrated shared decision-making (P = .024). Of patients enrolled, 87% felt messages helped them be more prepared for surgery, 100% felt messages kept them better informed, and 97% would participate again. CONCLUSION: TJA patients who received perioperative communication via automated mobile phone messaging had improved patient satisfaction scores postoperatively. Patients perceived this form of communication was useful and kept them better informed. Automated mobile phone messaging can be an easily integrated, helpful adjunct to surgeons, healthcare systems, and case managers to more effectively communicate with patients undergoing TJA in this era of value-based care. PMID- 29017804 TI - Nanomanufacturing through microfluidic-assisted nanoprecipitation: Advanced analytics and structure-activity relationships. AB - We have employed microfluidics (cross-shaped chip) for the preparation of drug loaded poly(lactic acid-co-glycolic acid) (PLGA) nanoparticles. The polymer precipitates from an acetone solution upon its controlled laminar mixing (flow focusing) with an aqueous solution of a surfactant, allowing for an operator independent, up-scalable and reproducible preparative process of nanoformulations. Firstly, using PEGylated surfactants we have compared batch and microfluidic processes, and showed the superior reproducibility of the latter and its strong dependency on the acetone/water ratio (flow rate ratio). We have then focused on the issue of purification from free surfactant, and employed advanced characterization techniques such as flow-through dynamic light scattering as the in-line quality control technique, and field flow fractionation (FFF) with dynamic and static light scattering detection, which allowed the detection of surfactant micelles in mixture with nanoparticles (hardly possible with stand alone dynamic light scattering). Finally, we have shown that the choice of polymer and surfactant affects the release behaviour of a model drug (paclitaxel), with high molecular weight PLGA (RG756) and low molecular weight surfactant (tocopheryl poly(ethylene glycol) 1000 succinate, TPGS) apparently showing higher burst and accelerated release. PMID- 29017805 TI - Atherosclerotic plaque characteristics are not associated with future cardiovascular events in patients undergoing iliofemoral endarterectomy. AB - BACKGROUND: Plaque characteristics such as intraplaque hemorrhage (IPH) have been associated with secondary cardiovascular events (CVE) in patients undergoing carotid endarterectomy. In addition, carotid plaques containing macrophage infiltration or a large lipid core size were associated with less restenosis. It is currently unknown whether iliofemoral plaque histopathologic characteristics are predictive for secondary CVE in patients with peripheral arterial disease undergoing iliofemoral endarterectomy. The aim of this study was to examine the association between iliofemoral atherosclerotic plaque characteristics and secondary CVE in patients undergoing iliofemoral endarterectomy. METHODS: There were 497 patients with iliofemoral atherosclerotic disease who underwent primary endarterectomy of the iliac or femoral artery from 2002 to 2013 included. All specimen were uptaken in the Athero Express biobank and 7 histologic plaque characteristics were analyzed: calcification, collagen, fat content, IPH, macrophages, smooth muscle cells, and vessel density. The composite CVE consisted of myocardial infarction, cerebrovascular accident, peripheral (re )interventions, and cardiovascular death. Multivariate Cox regression models were used to examine the association between plaque and the composite end point during a follow-up period of 3 years. RESULTS: Of the 497 patients, 225 (46.4%) experienced a composite CVE within 3 years after the initial surgery. Calcified plaques were univariably associated with composite CVE (hazard ratio [HR], 1.32; 95% confidence interval [CI], 1.00-1.73; P = .049). After correction for confounders, multivariable analyses showed no association between calcified plaques and composite CVE (HR, 1.13; 95% CI, 0.85-1.50; P = .413). IPH was not predictive of secondary CVE (HR, 1.02; 95% CI, 0.79-1.33; P = .867). CONCLUSIONS: In this cohort of patients with peripheral arterial disease undergoing iliofemoral endarterectomy, investigated atherosclerotic plaque characteristics were not independently associated with secondary CVE during follow-up. PMID- 29017806 TI - Implementation of a bundled protocol significantly reduces risk of spinal cord ischemia after branched or fenestrated endovascular aortic repair. AB - OBJECTIVE: Spinal cord ischemia (SCI) is a devastating complication after branched or fenestrated endovascular aortic repair (B/FEVAR) for thoracoabdominal aortic disease. The purpose of this analysis was to describe the impact of a bundled clinical care protocol designed to reduce the risk of SCI in this population of patients. METHODS: A bundled SCI prevention protocol including cerebrospinal fluid drainage, blood pressure parameters, transfusion goals, and pharmacologic adjuncts (steroids, naloxone) was initiated in May 2015. Before that date, portions of the protocol (cerebrospinal fluid drainage in particular) were used in an informal fashion in patients perceived to be at high risk. B/FEVAR cases completed from January 2012 to May 2016 were reviewed, and outcomes before (n = 223) and after (n = 70) SCI bundle application were compared. The primary end point was the incidence of SCI events. Secondary end points included length of stay, complications, and survival. High-risk patients for SCI were defined as those undergoing B/FEVAR resulting in aortic coverage equivalent to open Crawford extent I to III thoracoabdominal aortic aneurysm (TAAA) repair. Survival was estimated using Kaplan-Meier life-table analysis. RESULTS: Postprotocol patients were more likely to be older (75 +/- 7 vs 72 +/- 8 years; P = .03), to have an American Society of Anesthesiologists class 4 designation (94% vs 81%; P = .04), and to be treated for TAAA (67% vs 56%; P = .004). Postprotocol pre-emptive spinal drain use was greater in high-risk patients (100% vs 87%; P = .04) but significantly decreased in lower risk patients (suprarenal aneurysm or extent IV TAAA: 5% after protocol implementation vs 21% before protocol implementation; P = .04). Rates of any SCI before and after implementation of the bundled protocol were 13% (n = 29 of 223) and 3% (n = 2 of 70; P = .007), respectively. In comparing high-risk patients, protocol use resulted in an even more significant reduction in SCI rate (19% [28 of 144] vs 4% [2 of 50]; P = .004). Postoperative morbidity (41% vs 33%; P = .2) and 30-day mortality (5% vs 1%; P = .3) were not different between groups. However, patients treated on protocol had significantly improved 1-year survival (99% +/- 1% after protocol implementation vs 90% +/- 2% before protocol implementation; log-rank, P = .05). CONCLUSIONS: Implementation of a bundled multimodal protocol may significantly reduce risk of SCI after B/FEVAR, with the greatest risk reduction occurring in the most vulnerable patients. Interestingly, reduction in SCI risk was associated with improvement in 1-year survival. PMID- 29017807 TI - Unplanned 30-day readmission in patients with diabetic foot wounds treated in a multidisciplinary setting. AB - OBJECTIVE: Readmission rates are known to be high for vascular surgery patients in general, but there are limited data describing the risk of surgical and nonsurgical readmission among patients with diabetic foot ulcers (DFUs). Our aim was to identify factors associated with unplanned readmission in DFU patients treated in a multidisciplinary setting. METHODS: We studied a single-center cohort of patients enrolled in a multidisciplinary diabetic foot service (July 2012-June 2017). Readmissions were stratified by planned vs unplanned and related vs unrelated to the wound and vascular status. Predictors of unplanned 30-day readmission were examined with univariable and multivariable logistic regression models including all covariates with P <= .10. RESULTS: There were 460 admissions in 206 patients during the study period, including 99 total readmissions (21.5%). Readmissions were categorized as planned (n = 18 [18.2%]) or unplanned (n = 81 [81.8%]) and as related (n = 67 [67.7%]) or unrelated (n = 32 [32.3%]) to the wound and vascular status. The most frequent reasons for unplanned 30-day readmission were deterioration of the foot wound (41%), vascular complications (15%), gastrointestinal complications (10%), cardiac complications (8%), and acute kidney injury (8%). The average length of stay for the initial admission was 9.0 +/- 7.1 days, whereas the average unplanned readmission length of stay was 8.6 +/- 9.1 days (P = .38). On univariable analysis, hypertension (odds ratio [OR], 2.80; 95% confidence interval [CI], 1.19-6.59), peripheral arterial disease (OR, 1.80; 95% CI, 1.09-2.99), and exposure to an open vascular operation (OR, 2.64; 95% CI, 1.34-5.17) were associated with a higher risk of 30-day unplanned readmission (P <= .02). Private, military, or self-pay insurance was protective (OR, 0.52; 95% CI, 0.28-0.97). Wound duration, location, and Wound, Ischemia, and foot Infection (WIfI) classification were not associated with readmission (P >= .22). After risk adjustment, only hypertension (OR, 2.80; 95% CI, 1.19-6.59) and current smoking (OR, 1.95; 95% CI, 1.02-3.73) were independently associated with 30-day unplanned readmission, but the predictive accuracy of the model was weak (C statistic = 0.69). CONCLUSIONS: We found a 17% unplanned 30-day readmission rate in this prospective cohort of DFU patients enrolled in a multidisciplinary diabetic foot service. Only current smoking and hypertension were independent predictors of readmission after risk adjustment. These findings suggest that implementation of a smoking cessation program may be beneficial to reduce unplanned readmissions in DFU patients. They also highlight the complexity involved in achieving comprehensive DFU care and the unpredictability of readmissions in this unique population of patients. PMID- 29017809 TI - Discussion. PMID- 29017808 TI - A novel technique for duplex-guided office-based interventions for patients with acute arteriovenous fistula occlusion. AB - OBJECTIVE: The purpose of the study was to aggressively salvage acutely occluded arteriovenous fistulas (AVFs) using duplex imaging as the sole imaging modality for percutaneous transluminal angioplasty of acutely thrombosed AVF. METHODS: Over a period of 12 months, 14 patients with acute thrombosis of their AVFs underwent 18 procedures in a single center for AVF salvage. All 14 patients presented with chronic renal failure, and six were diabetic. All patients were treated under duplex guidance alone. Treatment included simple balloon dilation and maceration (group A; n =10 procedures [56%]) for subacute thrombosis or pharmacomechanical thrombectomy (group B; n = 8 procedures [44%]) for more hypoechoic thrombus. A successful procedure was defined as immediate restoration of flow through the AVF. RESULTS: Of the 18 procedures, 13 (72%) were successful. Of the 14 patients, thrombus was located at the perianastomotic AVF in 6 (43%), proximal-mid AVF in 6 (43%), mid AVF in 1 (7%), and distal AVF in 1 (7%). From group A, six (60%) were successful. From group B, seven (88%) were successful. Among the unsuccessful procedures, one group B patient was hypercoagulable (polycythemia vera). Of the 18 procedures, 16 (89%) were treated within 2 weeks from when duplex revealed the presence of thrombus. Early rethrombosis (<1-month patency) occurred in three cases (17%), and these patients received new fistulas. Full restoration of the fistula flow was established in 14 cases (78%). Of these 14 patients, 8 (57%) are currently on hemodialysis via fistula, 3 patients (21%) had newly placed fistulas after failed interventions, 2 patients (14%) are not on dialysis yet, and 1 patient (7%) with polycythemia vera disorder is on dialysis via a Tesio catheter (MedComp, Harleysville, Pa). CONCLUSIONS: The sole use of duplex ultrasound imaging to salvage acutely occluded AVFs using percutaneous transluminal angioplasty is a safe and effective alternative to traditional treatment of thrombosed failing/maturing AVF. PMID- 29017811 TI - A randomized trial comparing three Delphi feedback strategies found no evidence of a difference in a setting with high initial agreement. AB - OBJECTIVES: The objective of the study was to explore the impact of different feedback strategies on (1) subsequent agreement and (2) variability in Delphi studies. STUDY DESIGN AND SETTING: A two-round Delphi survey, with a list of outcomes generated from the results of a systematic review and interviews, was undertaken while developing a core outcomes set for prostate cancer including two stakeholder groups (health professionals and patients). Seventy-nine outcomes were scored on a scale of one (not important) to nine (critically important). Participants were randomized in round 2 to receive round 1 feedback from peers only, multiple stakeholders separately, or multiple stakeholders combined. RESULTS: Agreement on outcomes retained for all feedback groups was high (peer: 92%, multiple separate: 90%, multiple combined: 84%). There were no statistically significant reduction in variability for peer vs. multiple separate (0.016 [ 0.035, 0.067]; P = 0.529), or multiple separate vs. multiple combined feedback (0.063 [-0.003, 0.129]; P = 0.062). Peer feedback statistically significantly reduced variability compared with multiple combined feedback (0.079 [0.001, 0.157]; P = 0.046). CONCLUSIONS: We found no evidence of a difference between different feedback strategies in terms of the number of outcomes retained or reduction in variability of opinion. However, this may be explained by the high level of existing agreement in round 1. Further methodological studies nested within Delphi surveys will help clarify the best strategy. PMID- 29017810 TI - Redox-mediated regulation of connexin proteins; focus on nitric oxide. AB - Connexins are membrane proteins that form hemichannels and gap junction channels at the plasma membrane. Through these channels connexins participate in autocrine and paracrine intercellular communication. Connexin-based channels are tightly regulated by membrane potential, phosphorylation, pH, redox potential, and divalent cations, among others, and the imbalance of this regulation have been linked to many acquired and genetic diseases. Concerning the redox potential regulation, the nitric oxide (NO) has been described as a modulator of the hemichannels and gap junction channels properties. However, how NO regulates these channels is not well understood. In this mini-review, we summarize the current knowledge about the effects of redox potential focused in NO on the trafficking, formation and functional properties of hemichannels and gap junction channels. PMID- 29017812 TI - Anaerobic dynamic membrane bioreactor (AnDMBR) for wastewater treatment: A review. AB - Recently, an increasing level of attention has focused on the emerging technology of anaerobic dynamic membrane bioreactors (AnDMBRs), owing to its merits such as low membrane module cost, easy control of membrane fouling, low energy consumption and sludge production, as well as biogas production. As research on AnDMBRs is still in the nascent stage, an introduction of bioreactor configurations, dynamic membrane (DM) module, and DM layer formation and cleaning is firstly presented. The process performance of the AnDMBR for wastewater treatment is then reviewed with regard to pollutant removal, DM filterability, biogas production, and potential advantages over the conventional anaerobic membrane bioreactor (AnMBR). In addition, the important parameters affecting process performance are briefly discussed. Lastly, the challenges encountered and perspectives regarding the future development of the AnDMBR process to promote its practical applications are presented. PMID- 29017813 TI - Plasmid DNA purification by zirconia magnetic nanocomposite. AB - A zirconia magnetic nanocomposite was prepared by a co-precipitation method in one step. The synthesized nanocomposite was characterized by scanning electron microscopy, energy-dispersive X-ray and Fourier transform infrared spectroscopy. The nanocomposite was applied for the adsorption/desorption of tobacco plant DNA (as a model). Experimental parameters controlling adsorption efficiency, including pH of binding solution, extraction time, the amount of nanocomposite and ionic strength, were optimized. To obtain high desorption efficiency, the effects of pH, the ionic strength of elution buffer and desorption time were investigated. The nanocomposite provided the adsorption capacity of 53.5 mg g-1 for DNA. The adsorption and desorption efficiency of the sorbent was found to be greater than 98 and 81%, respectively. The zirconia magnetic nanocomposite was used for the purification of plasmid DNA (pDNA) from Escherichia coli cell culture. The yield and purity of pDNA obtained by the method were compared to those obtained by the phenol-chloroform solvent extraction and a commercial kit. PMID- 29017815 TI - RNA polymerase II pausing and transcriptional regulation of the HSP70 expression. AB - Heat-shock proteins (HSPs) belong to the chaperone protein family whose expression is induced by different stresses including heat-shock. In response to the extracellular or intrinsic stimuli and stresses, HSPs play important roles in the maintenance of cellular homeostasis. HSP70, a major HSP protein (molecular weight, 70 KDa), regulates diverse cellular pathways including protein quality control, translation, immune response, and cancer survival. As a critical cellular defense system to minimize damages from cellular stresses, HSP70 expression and transcriptional activation are rapidly regulated, mainly through the action of a transcription activator, Heat shock factor 1 (HSF1). Eukaryotic HSP70 genes are well-characterized; they utilize a transcriptional mechanism termed as RNA polymerase II (Pol II) promoter-proximal pausing. Pol II promoter proximal pausing enables synchronized gene expression in a number of mammalian protein-coding and non-protein coding genes upon the reception of gene activating signals. In particular, Drosophila and human HSP70 genes serve as a bona fide model system to understand the mechanisms of Pol II pausing and pause release. In this review, we will discuss HSP70 transcription and the newly discovered mechanisms that regulate HSP70 gene expression. PMID- 29017814 TI - Pituitary adenylate cyclase activating polypeptide induces long-term, transcription-dependent plasticity and remodeling at autonomic synapses. AB - Pituitary adenylate cyclase activating polypeptide (PACAP) is a multifunctional neuropeptide, widely expressed in the nervous system (Vaudry et al., 2009; Starr and Margiotta, 2016). At neuronal synapses where transmission is mediated by nicotinic acetylcholine receptors (nAChRs) transient PACAP exposure increases the frequency and amplitude (FS and AS) of spontaneous excitatory postsynaptic currents (sEPSCs) within minutes. This short-term (ST) plasticity requires high affinity PACAP receptor (PAC1R) signaling via adenylate cyclase (AC), cyclic AMP (cAMP), Protein kinase A (PKA) and obligatory nAChR-dependent stimulation of nitric oxide (NO) synthesis to retrogradely increase presynaptic ACh release (Pugh et al., 2010; Jayakar et al., 2014). Remarkably, synaptic changes persist 48h after transient PACAP exposure, featuring a similar increase in FS and an even larger increase in AS. Pharmacological studies reveal that this long-term (LT) plasticity requires PACAP/PAC1R signaling via AC and cAMP, but unlike ST plasticity, Phospholipase-C and new gene transcription are also necessary, whereas PKA, nAChR, impulse and NO synthase (NOS1) activities are dispensable. In accord with the increases in FS and AS characterizing LT plasticity, miniature EPSC (mEPSC) frequency, ACh release (quantal content), and mEPSC amplitude (quantal size) all increased in parallel. Consistent with these functional changes, imaging studies reveal that LT, but not ST, PACAP-induced plasticity is accompanied by increases in presynaptic terminal size, postsynaptic nAChR cluster size and density, and the size and density of co-localized pre- and post-synpatic sites. Thus PACAP/PAC1R signaling induces mechanistically distinct forms of synaptic plasticity, with a ST form arising from acute, membrane-delimited processes, and a LT form arising from transcription-dependent alterations in the function and structural arrangement of pre- and post-synaptic components. PMID- 29017816 TI - Oral and dermal diflubenzuron exposure causes a hypothalamic-pituitary-thyroid (HPT) axis disturbance in the Mongolian racerunner (Eremias argus). AB - Diflubenzuron (DFB) is a potential endocrine-disrupting chemical. However, its thyroid endocrine effect on reptiles has not been reported. In this study, immature lizards (Eremias argus) were exposed to 20 mg kg-1 DFB once a week for 42 days through oral or dermal routes. Their body weight, plasma thyroid hormone levels, thyroid gland histology and the transcription of hypothalamic-pituitary thyroid (HPT) axis-related genes in different tissues were assessed to explore the effects of DFB on the HPT axis of lizards. The body weight decreased significantly only after the dermal exposure to DFB. Triiodothyronine (T3) to thyroxine (T4) ratio in the male plasma also significantly increased after the dermal exposure. After oral exposure, the activity of thyroid gland was positively related to the thyroid hormone levels. Furthermore, the alterations in thyroid hormone levels affected the HPT axis-related gene expression, which was tissue dependent and sexually selected. The thyroid hormone receptor genes (tralpha and trbeta) in the brain and thyroid were more sensitive to oral exposure. However, only the dermal treatment affected the tralpha, trbeta and type 2 deiodinase (dio2) genes in the male liver. These results suggest that DFB exposure caused sex-specific changes in the thyroid function of lizards, and the dermal treatment may be an important route for the risk assessment of reptiles. PMID- 29017817 TI - Classification of beta-hairpin repeat proteins. AB - In recent years, a number of new protein structures that possess tandem repeats have emerged. Many of these proteins are comprised of tandem arrays of beta hairpins. Today, the amount and variety of the data on these beta-hairpin repeat (BHR) structures have reached a level that requires detailed analysis and further classification. In this paper, we classified the BHR proteins, compared structures, sequences of repeat motifs, functions and distribution across the major taxonomic kingdoms of life and within organisms. As a result, we identified six different BHR folds in tandem repeat proteins of Class III (elongated structures) and one BHR fold (up-and-down beta-barrel) in Class IV ("closed" structures). Our survey reveals the high incidence of the BHR proteins among bacteria and viruses and their possible relationship to the structures of amyloid fibrils. It indicates that BHR folds will be an attractive target for future structural studies, especially in the context of age-related amyloidosis and emerging infectious diseases. This work allowed us to update the RepeatsDB database, which contains annotated tandem repeat protein structures and to construct sequence profiles based on BHR structural alignments. PMID- 29017819 TI - Jasmonates are signals in the biosynthesis of secondary metabolites - Pathways, transcription factors and applied aspects - A brief review. AB - Jasmonates (JAs) are signals in plant stress responses and development. One of the first observed and prominent responses to JAs is the induction of biosynthesis of different groups of secondary compounds. Among them are nicotine, isoquinolines, glucosinolates, anthocyanins, benzophenanthridine alkaloids, artemisinin, and terpenoid indole alkaloids (TIAs), such as vinblastine. This brief review describes modes of action of JAs in the biosynthesis of anthocyanins, nicotine, TIAs, glucosinolates and artemisinin. After introducing JA biosynthesis, the central role of the SCFCOI1-JAZ co-receptor complex in JA perception and MYB-type and MYC-type transcription factors is described. Brief comments are provided on primary metabolites as precursors of secondary compounds. Pathways for the biosynthesis of anthocyanin, nicotine, TIAs, glucosinolates and artemisinin are described with an emphasis on JA-dependent transcription factors, which activate or repress the expression of essential genes encoding enzymes in the biosynthesis of these secondary compounds. Applied aspects are discussed using the biotechnological formation of artemisinin as an example of JA-induced biosynthesis of secondary compounds in plant cell factories. PMID- 29017818 TI - Room temperature bioproduction, isolation and anti-microbial properties of stable elemental copper nanoparticles. AB - In nanoparticle production there are a number of important considerations that must be made. Producing nanoparticles of uniform size and shape is vital, but no less important is ensuring the production process is as efficient as possible in time, cost and energy. Traditional chemical and physical methods of nanoparticle production often involve high temperatures and pressures, as well as the use of toxic substrates; in contrast the bioproduction of nanoparticles is greener and requires a smaller input of energy resources. Here we outline a method for the straightforward bioproduction of stable, uniform elemental (zero-valent) copper nanoparticles at room temperature, and demonstrate how their size and shape can be modified by subsequent pH manipulation. We also highlight a potential application for these biogenic copper nanoparticles by demonstrating their potential to inhibit bacterial growth. PMID- 29017820 TI - Possible Utility of the Basophil Activation Test for the Analysis of Mechanisms Involved in Allergic Transfusion Reactions. AB - Allergic transfusion reactions (ATRs) are the most common adverse reactions occurring during transfusion of blood components. Although most reactions are mild and involve cutaneous manifestations, severe ATRs including life-threatening anaphylaxis may also occur. The mechanisms of ATRs are largely unknown because they have not been well studied. One of the reasons for this may be the absence of a standard assay system for investigating these processes. Basophils and/or mast cells are key effector cells in immediate-type allergic reactions. They possess the unique ability to degranulate upon cross-linking of specific IgE bound on the membrane-bound, high-affinity IgE receptor or upon direct stimulation by exposure to allergens. Basophils are present in peripheral blood, unlike mast cells which are located in tissues. Therefore, basophils are valuable for the clinical testing of allergy. Consequently, the basophil activation test (BAT) was developed as a simple blood test for the diagnosis of allergic reactions to substances such as foods, inhalants, medicines and venom. In the last decade, the BAT has also been applied to transfusion medicine; 5 pilot studies revealed that the supernatants of the responsible blood products activated basophils in the BAT in 13 ATR cases, suggesting a causal relationship between ATRs and transfusion. In this review, we describe those cases and explore the potential utility of the BAT as a test performed in reference laboratories for the analysis of ATRs. We also describe the weaknesses, pitfalls, and unanswered issues of this assay. PMID- 29017822 TI - Sub-optimal primary surgery leads to unfavorable immunological changes in ovarian cancer patients. AB - Primary cytoreduction, followed by chemotherapy, is a standard treatment of patients with epithelial ovarian cancer (EOC). However, the effectiveness of this treatment depend on various elements e.g. type of operation. It is accepted that optimal surgery correlates with longer survival of patients. The other element, an efficiency of immune system after surgical intervention although important is less elucidated. The aim of this study was to establish the impact of optimal and sub-optimal operation on immunological status of EOC patients regarding also their overall survival (OS). On the day of primary cytoreduction and 7days after, the selected serum immunological parameters were determined in 49 patients with confirmed EOC. We found that, the level of immunosuppressive (interleukin 10; transforming growth factor-beta - TGF-beta1) and pro-inflammatory (interleukin-6 and 8) cytokines was significantly higher in the group of patients with advanced stage of disease, compared to early stage. However, the number of circulating CD3+, CD4+ or CD8+ cells, CD19+ and NK cells was similar in both group of EOC patients. The overall survival of patients who underwent optimal cytoreduction was significantly higher than that in whom only sub-optimal surgery was performed. Sub-optimal cytoreduction only partially weakened the serum level of TGF-beta1 and IL-8 and what is more enhanced the number of circulating CD4+CD25+high cells in patients with advanced stage of disease. Sub-optimal surgery and high post-operative level of TGF-beta1 increased the hazard ratio for patients. Besides, we noticed that the high pre-operative concentration of TGF beta1 could distinguish all EOC patients (independently of FIGO classification) for whom optimal or sub-optimal surgery would be applied. Sub-optimal debulking resulted in higher immunosuppression and lower OS of EOC patients. PMID- 29017821 TI - A novel C3d-containing oligomeric vaccine provides insight into the viability of testing human C3d-based vaccines in mice. AB - The use of C3d, the final degradation product of complement protein C3, as a "natural" adjuvant has been widely examined since the initial documentation of its immunogenicity-enhancing properties as a consequence of binding to complement receptor 2. Subsequently it was demonstrated that these effects are most evident when oligomeric, rather than when monomeric forms of C3d, are linked to various test protein antigens. In this study, we examined the feasibility of enhancing the adjuvant properties of human C3d further by utilizing C4b-binding protein (C4BP) to provide an oligomeric arrayed scaffold fused to the model antigen, tetanus toxin C fragment (TTCF). High molecular weight, C3d-containing oligomeric vaccines were successfully expressed, purified from mammalian cells and used to immunize groups of mice. Surprisingly, anti-TTCF antibody responses measured in these mice were poor. Subsequently we established by in vitro and in vivo analysis that, in the presence of mouse C3, human C3d does not interact with either mouse or even human complement receptor 2. These data confirm the requirement to develop murine versions of C3d based adjuvant compounds to test in mice or that mice would need to be developed that express both human C3 and human CR2 to allow the testing of human C3d based adjuvants in mouse in any capacity. PMID- 29017823 TI - Erythroblast differentiation at spleen in Q137E mutant ribosomal protein S19 gene knock-in C57BL/6J mice. AB - We recently found that erythroblast-like cells derived from human leukaemia K562 cells express C5a receptor (C5aR) and produce its antagonistic and agonistic ligand ribosomal protein S19 (RP S19) polymer, which is cross-linked between K122 and Q137 by tissue transglutaminases. RP S19 polymer binds to the reciprocal C5aRs on erythroblast-like cells and macrophage-like cells derived from human monocytic THP-1 cells and promotes differentiation into reticulocyte-like cells through enucleation in vitro. To examine the roles of RP S19 polymer in mouse erythropoiesis, we prepared Q137E mutant RP S19 gene knock-in C57BL/6J mice. In contrast to wild-type mice, erythroblast numbers at the preliminary stage (CD71high/TER119low) in spleen based on transferrin receptor (CD71) and glycophorin A (TER119) values and erythrocyte numbers in orbital artery bloods were not largely changed in knock-in mice. Conversely, erythroblast numbers at the early stage (CD71high/TER119high) were significantly decreased in spleen by knock-in mice. The reduction of early erythroblast numbers in spleen was enhanced by the phenylhydrazine-induced pernicious anemia model knock-in mice and was rescued by a functional analogue of RP S19 dimer S-tagged C5a/RP S19. These data indicated that RP S19 polymer plays the roles in the early erythroblast differentiation of C57BL/6J mouse spleen. PMID- 29017824 TI - Early postoperative intraperitoneal chemotherapy is associated with survival benefit for appendiceal adenocarcinoma with peritoneal dissemination. AB - INTRODUCTION: The combined approach of cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC) has achieved encouraging outcomes for patients with PMCA with peritoneal dissemination. However, there is little evidence for the use of EPIC in addition to HIPEC in this group of patients. PATIENTS AND METHODS: This was a retrospective study of prospectively collected data of consecutive patients with PMCA who underwent CRS and perioperative intraperitoneal chemotherapy by one surgical team at St George Hospital in Sydney, Australia between Jan 1996 and Aug 2016. RESULTS: A total of 185 patients formed the cohort of this study. However, there was no significant difference in terms of hospital mortality (p = 0.632), major morbidity rate (i.e. Grade III/IV) (p = 0.444), intensive unit care stay (p = 0.638) and total hospital stay (p = 0.0.078). However, patients who received HIPEC and EPIC had a significant longer stay in high dependency unit (p < 0.001). Multivariate analysis showed combined HIPEC with EPIC is an independent prognostic factor for better overall survival (Hazard ratio (HR) = 0.42, 95% confidence interval (CI) = 0.19-0.92, P = 0.030) and disease free survival (HR = 0.66, 95%CI = 0.44-0.99, p = 0.045), adjusted for age, sex, peritoneal cancer index, completeness of cytoreduction score, CEA >= 6.5 mg/L, CA19-9 >= 24.0 U/mL and CA125 >= 32.0 U/mL. CONCLUSIONS: In summary, the combination of HIPEC and EPIC could potentially provide additional survival benefit for patients with PMCA with peritoneal spread as compared to HIPEC alone without increasing postoperative morbidity and mortality. More studies are warranted to further confirm the potential benefits of EPIC in PMCA and address the question of optimal drug and/or duration of EPIC. PMID- 29017825 TI - Transcriptomic analysis of Ehrlichia ruminantium during the developmental stages in bovine and tick cell culture. AB - The use of bioinformatics tools to search for possible vaccine candidates has been successful in recent years. In an attempt to search for additional vaccine candidates or improve the current heartwater vaccine design, a genome-wide transcriptional profile of E. ruminantium (Welgevonden strain) replicating in bovine endothelial cells (BA886) and Ixodes scapularis embryonic tick cells (IDE8) was performed. The RNA was collected from the infective extracellular form, the elementary bodies (EBs) and vegetative intracellular form, reticulate bodies (RBs) and was used for transcriptome sequencing. Several genes previously implicated with adhesion, attachment and pathogenicity were exclusively up regulated in the EBs from bovine and tick cells. Similarly, genes involved in adaptation or survival of E. ruminantium in the host cells were up-regulated in the RBs from bovine cells. Thus, it was concluded that those genes expressed in the EBs might be important for infection of mammalian and tick host cells and these may be targets for both cell and humoral mediated immune responses. Alternatively, those exclusively expressed in the RBs may be important for survival in the host cells. Exported or secreted proteins exclusively expressed at this stage are ideal targets for the stimulation of cytotoxic T-lymphocyte (CTL) immune responses in the host. PMID- 29017826 TI - Disability glare in soft multifocal contact lenses. AB - PURPOSE: The study investigated the effect of the design of multifocal contact lenses on the sensitivity to contrast and disability glare. METHODS: Contrast sensitivity was measured in 16 young adults (mean age: 25.5+/-2.5years) at a distance of 2m under two conditions: no-glare and glare. Two designs (Center Near and Center Distance) of the Biofinity soft contact lens were used to simulate correction for presbyopes, while a correction with single vision trial lenses and contact lenses acted as controls. RESULTS: The design of the used multifocal contact lenses had a significant influence on the log area under the curve of the contrast sensitivity function (AUC-CSF). Compared to the spectacle lens correction, the AUC-CSF was significantly reduced, in case CS was measured with the Center Near design lens, under the no-glare (p<0.001) and the glare condition (p: p<0.001). In case of the Center Distance design contact lens, the AUC-CSF was significantly smaller in case CS was tested under glare (p=0.001). Disability glare (DG) was depending on the spatial frequency and the design of the multifocal lens, while the Center Distance design produced higher amounts of DG (p<0.001), compared to the other used corrections. CONCLUSION: The optical design of a multifocal contact lenses has a significant impact on the contrast sensitivity as well as the disability glare. In order to dispense the best correction in terms of contact lenses, the sensitivity to contrast under no-glare and glare conditions should be tested a medium spatial frequencies. PMID- 29017827 TI - Subjective Global Assessment (SGA) Score Could Be a Predictive Factor for Radiation Pneumonitis in Lung Cancer Patients With Normal Pulmonary Function Treated by Intensity-Modulated Radiation Therapy and Concurrent Chemotherapy. AB - INTRODUCTION: To investigate the relationship between malnutrition and the severity of radiation pneumonitis (RP) in patients with lung cancer with normal baseline pulmonary function and lungs' V20 < 35% treated by intensity-modulated radiation therapy (IMRT) and concurrent chemotherapy. MATERIALS AND METHODS: A total of 150 patients with lung cancer who received definitive IMRT (>= 60 Gy) and concurrent chemotherapy were enrolled. In the condition of normal baseline pulmonary function and strict constraints of the irradiation dose to normal lung tissues, we recorded Eastern Cooperative Oncology Group score; concurrent chemotherapy; clinical stage; the level of albumin (ALB), hemoglobin, and C reactive protein; Subjective Global Assessment (SGA) scores; radiation esophagitis grade; V20 of lungs; and mean lung dose. These factors were correlated with RP using univariate and multivariate regression analyses. RESULTS: Of 150 patients, 12 patients (8.0%) developed Grade 3 to 5 RP, 37 (24.6%) patients developed grade 3 to 5 esophageal toxicity. In univariate analysis, ALB level (P = .002), radiation esophagitis (P < .001), and SGA score (P < .001) were significantly associated with RP. Multivariate analysis revealed that SGA (P < .001) was the independent predictor of RP. CONCLUSIONS: SGA could be a predictor for RP in patients with lung cancer treated with definitive IMRT and concurrent chemotherapy. PMID- 29017829 TI - Etiology of community-onset monomicrobial bacteremic pneumonia and its clinical presentation and outcome: Klebsiella and Pseudomonas matters. AB - To describe the difference of the clinical features, bacteremia severity, and outcome of patient with community-onset bacteremic pneumonia between Pseudomonas, Klebsiella, and other causative microorganisms, the total 278 adults with community-onset monomicrobial bacteremic pneumonia were studied in a retrospective cohort. Klebsiella (61 patients, 21.9%) and Pseudomonas (22, 7.9%) species was the leading and the fifth common pathogen, respectively. More patients having initial presentation with critical illness (a Pitt bacteremia score >= 4) and a fatal comorbidity (McCabe classification) as well as a higher short- (30-day) or long-term (90-day) mortality rate was evidenced in patients infected with Klebsiella or Pseudomonas species, compared to other causative microorganisms. Compared to patients in the Klebsiella group, more frequencies of recent chemotherapy and an initial presentation of febrile neutropenia, and less proportions of diabetes mellitus were disclosed among those in the Pseudomonas group. Of importance, a significantly differential survival curve between Klebsiella or Pseudomonas species and other species during 30-day or 90-day period after bacteremia onset but a similarity of Pseudomonas and Klebsiella species was evidenced, using the Cox-regression after adjusting the independent predictors of 30-day mortality. Conclusively, of pathogens causing community onset bacteremic pneumonia, Klebsiella and Pseudomonas species should be recognized as the highly virulent pathogens and resulted in poor short- and long term prognoses. PMID- 29017828 TI - Dissecting the Native Architecture and Dynamics of Cyanobacterial Photosynthetic Machinery. AB - The structural dynamics and flexibility of cell membranes play fundamental roles in the functions of the cells, i.e., signaling, energy transduction, and physiological adaptation. The cyanobacterial thylakoid membrane represents a model membrane that can conduct both oxygenic photosynthesis and respiration simultaneously. In this study, we conducted direct visualization of the global organization and mobility of photosynthetic complexes in thylakoid membranes from a model cyanobacterium, Synechococcus elongatus PCC 7942, using high-resolution atomic force, confocal, and total internal reflection fluorescence microscopy. We visualized the native arrangement and dense packing of photosystem I (PSI), photosystem II (PSII), and cytochrome (Cyt) b6f within thylakoid membranes at the molecular level. Furthermore, we functionally tagged PSI, PSII, Cyt b6f, and ATP synthase individually with fluorescent proteins, and revealed the heterogeneous distribution of these four photosynthetic complexes and determined their dynamic features within the crowding membrane environment using live-cell fluorescence imaging. We characterized red light-induced clustering localization and adjustable diffusion of photosynthetic complexes in thylakoid membranes, representative of the reorganization of photosynthetic apparatus in response to environmental changes. Understanding the organization and dynamics of photosynthetic membranes is essential for rational design and construction of artificial photosynthetic systems to underpin bioenergy development. Knowledge of cyanobacterial thylakoid membranes could also be extended to other cell membranes, such as chloroplast and mitochondrial membranes. PMID- 29017831 TI - Translational therapies for multiple system atrophy: Bottlenecks and future directions. AB - Over the last decade a prominent amount of studies in preclinical transgenic models of multiple system atrophy (MSA) has been performed. These studies have helped understand mechanisms downstream to the alpha-synuclein oligodendroglial accumulation relevant to human MSA. However, the successful translation of the preclinical outcomes into a clinical trial has failed. Looking back, we can now identify possible confounders for the failure. Biomarkers of disease progression are mostly missing. Early diagnosis and initiation of therapeutic clinical trials is limited. The need of both proof-of-concept as well as clinically relevant preclinical study designs with clinically relevant timing and preclinical readouts is identified as a must in our translational efforts for MSA to date. Finally, improved clinical study designs with improved enrollment criteria, and measurement outcomes are warranted on the way to finding the successful therapeutic approach for MSA. This review provides an overview of experimental studies and clinical trials for MSA and the lessons learned over the last decade towards the identification of the cure for MSA. PMID- 29017830 TI - SUVmax after (18)fluoro-deoxyglucose positron emission tomography/computed tomography: A tool to define treatment strategies in pancreatic cancer. AB - BACKGROUND: (18)fluoro-deoxyglucose positron emission tomography/computed tomography (18FDG-PET/CT) might be a useful tool in the management of pancreatic ductal adenocarcinoma (PDAC). AIMS: The aim of this study was to analyze maximum standard uptake value (SUVmax) after 18FDG-PET/CT as predictor of survival outcomes and method to determine treatment strategies. METHODS: A consecutive series of patients who underwent preoperative 18FDG-PET/CT and subsequent resection for PDAC were retrospectively reviewed. Patients who underwent neoadjuvant chemotherapy were excluded. RESULTS: 46 patients were included in the analysis. Median follow-up was 27 months (4-67). Patients who recurred within 12 months showed a significantly higher preoperative median SUVmax (8.1 vs 6.1, p=0.039). Receiver operating characteristics (ROC) curves for disease-free survival (DFS) and disease-specific survival (DSS) identified SUVmax of 6.0 as optimal cut-off. Multivariate analysis showed that SUVmax >= 6.0 was an independent predictor of poor DFS (HR 2.288, p=0.024) and DSS (HR 4.875, p<0.001). The combination of SUVmax >=6.0 with CA19.9 >=200U/ml was significantly associated with survival outcomes in comparison to patients without concordantly elevated values. CONCLUSION: SUVmax >=6.0 is an independent predictor of DFS and DSS in resected PDAC. 18FDG-PET/CT might be considered in the preoperative evaluation of patients with pancreatic cancer. PMID- 29017833 TI - Cross-reactivity in beta-Lactam Allergy. AB - beta-Lactam drugs (penicillins, amoxicillin, and cephalosporins) account for 42.6% of all severe drug-induced anaphylaxis. In this review, we focus on clinically significant immunologic cross-reactivity in patients with confirmed penicillin allergy to cephalosporins, and the structural involvement of the R1 and R2 chemical side chains of the cephalosporins causing IgE-mediated cross reactivity with penicillin and other cephalosporins. Skin tests predict IgE mediated reactions and showed cross-reactivity between penicillins and early generation cephalosporins that shared side chains, but confirmatory challenge data are lacking. Later-generation cephalosporins, which have distinct side chains, do not have any skin test cross-reactivity with penicillin/amoxicillin. There is debate as to the involvement of R2 side chains as the antigenic determinants that cause IgE-mediated hypersensitivity with various cephalosporins. Avoidance of cephalosporins, when they are the drug of choice in a penicillin-allergic individual, results in significant morbidity that outweighs the low risk of anaphylaxis. We conclude that there is ample evidence to allow the safe use of cephalosporins in patients with isolated confirmed penicillin or amoxicillin allergy. PMID- 29017832 TI - Impact of Rhinitis on Work Productivity: A Systematic Review. AB - BACKGROUND: Allergic rhinitis (AR) is increasingly acknowledged as having a substantial socioeconomic impact associated with impaired work productivity, although available information remains fragmented. OBJECTIVE: This systematic review summarizes recently available information to provide a quantitative estimate of the burden of AR on work productivity including lost work time (ie, absenteeism) and reduced performance while working (ie, presenteeism). METHODS: A Medline search retrieved original studies from 2005 to 2015 pertaining to the impact of AR on work productivity. A pooled analysis of results was carried out with studies reporting data collected through the validated Work Productivity and Activity Impairment (WPAI) questionnaire. RESULTS: The search identified 19 observational surveys and 9 interventional studies. Six studies reported economic evaluations. Pooled analysis of WPAI-based studies found an estimated 3.6% (95% confidence interval [CI], 2.4; 4.8%) missed work time and 35.9% (95% CI, 29.7; 42.1%) had impairment in at-work performance due to AR. Economic evaluations indicated that indirect costs associated with lost work productivity are the principal contributor to the total AR costs and result mainly from impaired presenteeism. The severity of AR symptoms was the most consistent disease-related factor associated with a greater impact of AR on work productivity, although ocular symptoms and sleep disturbances may independently affect work productivity. Overall, the pharmacologic treatment of AR showed a beneficial effect on work productivity. CONCLUSIONS: This systematic review provides summary estimates of the magnitude of work productivity impairment due to AR and identifies its main determinant factors. This information may help guide both clinicians and health policy makers. PMID- 29017834 TI - Validation of an observation tool to assess physical activity-promoting physical education lessons in high schools: SOFIT. AB - OBJECTIVES: SOFIT+ is an observation tool to measure teacher practices related to moderate-to-vigorous physical activity (MVPA) promotion during physical education (PE). The objective of the study was to examine the validity of SOFIT+ during high school PE lessons. DESIGN: This cross-sectional, observational study tested the construct validity of SOFIT+ in boys' and girls' high school PE lessons. METHODS: Twenty-one PE lessons were video-recorded and retrospectively coded using SOFIT+. Students wore hip-mounted accelerometers during lessons as an objective measure of MVPA. Multinomial logistic regression was used to estimate the likelihood of students engaging in MVPA during different teacher practices represented by observed individual codes and a combined SOFIT+ index-score. RESULTS: Fourteen individual SOFIT+ variables demonstrated a statistically significant relationship with girls' and boys' MVPA. Observed lesson segments identified as high MVPA-promoting were related to an increased likelihood of girls engaging in 5-10 (OR=2.86 [95% CI 2.41-3.40]), 15-25 (OR=7.41 [95% CI 6.05 9.06]), and 30-40 (OR=22.70 [95% CI 16.97-30.37])s of MVPA. For boys, observed high-MVPA promoting segments were related to an increased likelihood of engaging in 5-10 (OR=1.71 [95% CI 1.45-2.01]), 15-25 (OR=2.69 [95% CI 2.31-3.13]) and 30 40 (OR=4.26 [95% CI 3.44-5.29])s of MVPA. CONCLUSIONS: Teacher practices during high school PE lessons are significantly related to students' participation in MVPA. SOFIT+ is a valid and reliable tool to examine relationships between PE teacher practices and student MVPA during PE. PMID- 29017835 TI - Two goitrogenic 1,3-oxazolidine-2-thione derivatives from Brassicales taxa: Challenging identification, occurrence and immunomodulatory effects. AB - 1,3-Oxazolidine-2-thione derivatives are glucosinolate-related food constituents known to impart (thyreo)toxic properties to some cruciferous vegetables. In this work, 5,5-dimethyl-1,3-oxazolidine-2-thione and (-)-(R)-5-phenyl-1,3-oxazolidine 2-thione, known goitrogens, were isolated from Draba lasiocarpa Rochel (Brassicaceae) and Reseda luteola L. (Resedaceae), respectively, and were fully spectrally characterized. Subsequently, the occurrence of the two 1,3-oxazolidine 2-thiones was verified in six additional taxa out of in total 78 screened Serbian Brassicales taxa. The stereochemistry of 5-phenyl-1,3-oxazolidine-2-thione was inferred from nuclear magnetic resonance experiments with a chiral lanthanide shift reagent, employed in this work for the first time for this type of compounds. Unexpectedly, during gas chromatography, 5-phenyl-1,3-oxazolidine-2 thione underwent an unreported thermal core isomerization (1,3-oxazolidine-2 thione to 1,3-thiazolidine-2-one). These goitrogenic volatile glucosinolate products were tested for their effect on rat macrophage viability (three assays) and nitric oxide production. It was shown that the compounds displayed different levels of cytotoxicity. All tested compounds caused a significant lactate dehydrogenase leakage, but only (R)-5-phenyl-1,3-oxazolidine-2-thione statistically significantly reduced macrophage mitochondrial activity, whereas the racemic 5-phenyl-1,3-oxazolidine-2-thione and 5,5-dimethyl-1,3-oxazolidine-2 thione had little or no effect. Again only (R)-5-phenyl-1,3-oxazolidine-2-thione exerted nitric oxide production-inhibiting properties, suggesting the higher immunomodulatory potential of this enantiomer compared with its antipode and racemic mixture. PMID- 29017837 TI - Robo Ig4 Is a Dimerization Domain. AB - Robo receptors play pivotal roles in axonal guidance as well as in neurogenesis, angiogenesis, cell migration, and cancer progression and invasiveness. They are considered to be attractive drug targets for the treatment of cancer, ocular neovascular disorders, chronic kidney diseases, and more. Despite their great importance, the mechanisms by which Robo receptors switch from their "off" to "on" states remain obscure. One possibility involves a monomer-to-dimer or dimer to-monomer transition that facilitates the recruitment and activation of enzymatic effectors to instigate intracellular signaling. However, it is not known which domains mediate Robo dimerization, or the structural properties of the dimeric interactions. Here, we identify the extracellular Ig4 (D4) as a Robo dimerization domain. We have determined the crystal structure of the tandem Ig4-5 domains (D4-5) of human Robo2 and found that a hydrophobic surface on D4 mediates close homotypic contacts with a reciprocal D4. Analytical ultracentrifugation measurements of intact and mutated D4-5 shows that dimerization through the D4 interface is specific and has a dimerization dissociation constant of 16.9MUM in solution. Direct fluorescence resonance energy transfer dimerization measurements in HEK293 cells corroborate the dimerization of transmembrane hRobo2 through D4, and a functional COS-7 cell collapse assay links D4-mediated dimerization with Robo intracellular signaling. The high level of conservation in the D4 dimerization interface throughout all Robo orthologs and paralogs implies that D4 mediated dimerization is a central hallmark in Robo activation and signaling. PMID- 29017836 TI - Emerging Insights into Noncanonical Inflammasome Recognition of Microbes. AB - Inflammasomes are cytosolic multi-molecular complexes that sense intracellular microbial danger signals and metabolic perturbations. Inflammasome activation leads to the activation of caspase-1 and the release of pro-inflammatory cytokines IL-1beta and IL-18 accompanied by cell death. An inflammasome-based surveillance machinery for Gram-negative bacterial infections has been recently discovered. This noncanonical inflammasome relies on sensing the cytosolic presence of lipopolysaccharide of Gram-negative bacteria via inflammatory caspases such as caspase-4, -5, and -11. This review discusses the recent findings related to the mechanism of activation of the noncanonical inflammasome and its biological functions. PMID- 29017838 TI - Diurnal rhythms in peripheral blood immune cell numbers of domestic pigs. AB - Diurnal rhythms within the immune system are considered important for immune competence. Until now, they were mostly studied in humans and rodents. However, as the domestic pig is regarded as suitable animal model and due to its importance in agriculture, this study aimed to characterize diurnal rhythmicity in porcine circulating leukocyte numbers. Eighteen pigs were studied over periods of up to 50 h. Cosinor analyses revealed diurnal rhythms in cell numbers of most investigated immune cell populations in blood. Whereas T cell, dendritic cell, and eosinophil counts peaked during nighttime, NK cell and neutrophil counts peaked during daytime. Relative amplitudes of cell numbers in blood differed in T helper cell subtypes with distinctive differentiation states. Mixed model analyses revealed that plasma cortisol concentration was negatively associated with cell numbers of most leukocyte types, except for NK cells and neutrophils. The observed rhythms mainly resemble those found in humans and rodents. PMID- 29017840 TI - Focal Atrichia: A Diagnostic Clue in Female Pattern Hair Loss. AB - BACKGROUND: Focal atrichia is a common clinical finding in female pattern hair loss whose specificity and histologic findings need further clarification. OBJECTIVE: To determine the frequency of focal atrichia in various types of hair loss and its histologic characteristics in female pattern hair loss. METHODS: Part 1: Review of 250 consecutive female patients seen with hair loss for the presence of focal atrichia and Part 2: paired biopsies of haired areas vs focal atrichia in 18 subjects with female pattern hair loss RESULTS: Focal atrichia was seen in 46/104 (44%) of women with female pattern hair loss, including 67% of late onset vs 15% of early onset, compared to 3/146 (2%) of those with other hair disorders Biopsy findings of focal atrichia in female pattern hair loss showed primarily a more progressive miniaturization process than that of haired areas of the scalp. LIMITATIONS: Some women with female pattern hair loss may have had concomitant chronic telogen effluvium CONCLUSIONS: When present, focal atrichia is a clinical clue to the diagnosis of female pattern hair loss, particularly late onset subtype. PMID- 29017839 TI - Prolongation of rate-corrected QT interval during phenol-croton oil peels. PMID- 29017841 TI - Alternating histopathologic pattern in blaschkoid dermatoses with epidermal changes: A retrospective series of 61 cases. PMID- 29017842 TI - The Frisbee maneuver: A novel method to abort acute attacks of the Raynaud phenomenon. PMID- 29017843 TI - Short-term reasons for withdrawal and adverse events associated with apremilast therapy for psoriasis in real-world practice compared with in clinical trials: A multicenter retrospective study. PMID- 29017844 TI - Buccinator myomucosal flap for the treatment of velopharyngeal insufficiency in patients with cleft palate and/or lip. AB - INTRODUCTION: The interpretation of the speech results obtained with the buccinator myomucosal flap in the treatment of velopharyngeal insufficiency in patients with cleft palate has been limited by the restriction in the number of patients and the time of postoperative follow-up. OBJECTIVE: To evaluate the effect of the buccinator myomucosal flap on speech hypernasality in the treatment of patients with cleft palate and velopharyngeal insufficiency. METHODS: Patients with repaired cleft palate (+/- lip) who were submitted to surgical correction of velopharyngeal insufficiency using the bilateral buccinator myomucosal flap were assessed. Hypernasality (scores 0 [absent], 1 [mild], 2 [moderate], or 3 [severe]) was analyzed by three evaluators by measuring the audiovisual records collected in early and late preoperative and postoperative periods (3 and 12 months, respectively). The values were considered significant for a 95% Confidence Interval (p<0.05). RESULTS: Thirty-seven patients with cleft palate (+/- lip) showing moderate (16.2%) or severe (83.8%) hypernasality in the preoperative period were included. Analyses of the late postoperative period showed that hypernasality (0.5+/-0.7) was significantly (p<0.05) lower than the hypernasality of the preoperative and recent postoperative periods (2.8+/-0.4 and 1.7+/-0.9, respectively). CONCLUSION: The buccinator myomucosal flap is effective in reducing/eliminating hypernasality in patients with cleft palate (+/- lip) and velopharyngeal insufficiency. PMID- 29017845 TI - The relationship between dentine hypersensitivity, dietary acid intake and erosive tooth wear. AB - OBJECTIVES: To assess the interplay between dietary acid intake, toothbrushing and erosive tooth wear as aetiological factors in self-reported DH MATERIALS AND METHODS: This is a secondary analysis on previously collected data from 600 participants with (n=300) and without (n=300) severe erosive tooth wear. Participants recruited from restorative clinics of King's College London Dental Institute (REC Ref 14/EM/1171) were questioned on their self-reported DH, frequency and timing of dietary acid intake, habits associated with consumption of dietary acids and tooth brushing habits. Erosive tooth wear was assessed using Basic Erosive Wear Examination (BEWE). Differences in diet and brushing habits between those with self-reported DH and those without were analysed using descriptives and logistic regression in SPSS vers. 24. RESULTS: Of those reporting with DH (n=272), a greater number spent >=10min eating fruit per sitting, (n=46) and had a drinking habit such as sipping, swishing or holding drinks in the mouth (n=72) compared to those without DH (n=26 OR 2.72, 95%CI [1.32-5.61], p=0.007 and n=38 OR2.33, 95%CI [1.40-3.88], p=0.001, respectively). More DH participants used a soft toothbrush (n=36) compared to those without DH (n=18 OR 2.35, 95%CI [1.20-4.59], p=0.013). No association was observed with frequency of daily toothbrushing or dietary acid intake. CONCLUSION: Contact time between the tooth and the acid may be a more important risk factor for DH compared to frequency of dietary acid intake or frequency of toothbrushing. Other possible aetiological factors should be considered. CLINICALTRIALS. GOV NUMBER: NCT02449434 CLINICAL SIGNIFICANCE: Increased contact time with dietary acids and sipping swishing or holding drinks in the mouth prior to swallowing should be addressed as an aetiological factor in DH. Toothpaste abrasivity and toothbrush filament stiffness may play a greater role in DH compared to frequency of toothbrushing. PMID- 29017847 TI - The biomarkers neuron-specific enolase and S100b measured the day following admission for severe accidental hypothermia have high predictive values for poor outcome. AB - AIM: The aim of the present study was to assess the ability of the biomarkers neuron-specific enolase (NSE) and S100 calcium-binding protein b (S100b) to predict mortality and poor neurologic outcome after 30days in patients admitted with severe accidental hypothermia. METHODS: Consecutive patients with severe accidental hypothermia, defined as a core temperature <32 degrees C, were included. Patients were treated with active rewarming and/or extracorporeal life support (ECLS) using extra corporeal circulation (ECC) and/or extra corporeal membrane oxygenation (ECMO). The day following admission blood was analyzed for NSE and S100b. Follow-up was conducted after 30days and poor neurologic outcome was defined as a Cerebral Performance Category (CPC) score of 3-5. The predictive value of NSE and S100b was assessed as the area under the receiver-operating characteristics curve (AUC). RESULTS: A total of 34 patients were admitted with a diagnosis of severe accidental hypothermia and 29 (85%) were resuscitated from cardiac arrest. ECLS was initiated in 27 (79%) of patients. The day following admission three (9%) patients had died and one (3%) patient was awake, and accordingly, NSE and S100b were analyzed in 30 unconscious and/or sedated patients. NSE and S100b achieved AUCs of 0.93 and 0.88, respectively, for prediction of 30day mortality and AUCs of 0.88 and 0.87, respectively, for prediction of poor neurologic outcome. CONCLUSIONS: In patients remaining unconscious the day following admission for severe accidental hypothermia, the biomarkers NSE and S100b appear to be solid predictors of mortality and poor neurologic outcome after 30days. PMID- 29017848 TI - Suppression of cotton leaf curl disease symptoms in Gossypium hirsutum through over expression of host-encoded miRNAs. AB - Cotton leaf curl disease (CLCuD), a major factor resulting in the enormous yield losses in cotton crop, is caused by a distinct monopartite begomovirus in association with Cotton leaf curl Multan betasatellite (CLCuMB). Micro(mi)RNAs are known to regulate gene expression in eukaryotes, including antiviral defense in plants. In a previous study, we had computationally identified a set of cotton miRNAs, which were shown to have potential targets in the genomes of Cotton leaf curl Multan virus (CLCuMuV) and CLCuMB at multiple loci. In the current study, effect of Gossypium arboreum-encoded miRNAs on the genome of CLCuMuV and CLCuMB was investigated in planta. Two computationally predicted cotton-encoded miRNAs (miR398 and miR2950) that showed potential to bind multiple Open Reading Frames (ORFs; C1, C4, V1, and non- coding intergenic region) of CLCuMuV, and (betaC1) of CLCuMB were selected. Functional validation of miR398 and miR2950 was done by overexpression approach in G. hirsutum var. HS6. A total of ten in vitro cotton plants were generated from independent events and subjected to biological and molecular analyses. Presence of the respective Precursor (pre)-miRNA was confirmed through PCR and Southern blotting, and their expression level was assessed by semi quantitative RT-PCR, Real Time quantitative PCR and northern hybridization in the PCR-positive lines. Southern hybridization revealed 2-4 copy integration of T-DNA in the genome of the transformed lines. Remarkably, expression of pre-miRNAs was shown up to 5.8-fold higher in the transgenic (T0) lines as revealed by Real Time PCR. The virus resistance was monitored following inoculation of the transgenic cotton lines with viruliferous whitefly (Bemisia tabaci) insect vector. After inoculation, four of the transgenic lines remained apparently symptom free. While a very low titre of viral DNA could be detected by Rolling circle amplification, betasatellite responsible for symptom induction could not be detected in any of the healthy looking transgenic lines. In this study for the first time, efficacy of the host (G. arboreum)-encoded miRNAs against CLCuD symptoms was experimentally demonstrated through overexpression of miR398 and miR2950 in G. hirsutum var. HS6 plants. Computational prediction of miRNAs targeting virus genome and their subsequent implication in translational inhibition or cleavage based suppression of viral mRNA via overexpression could help in generating virus resistant plants. PMID- 29017846 TI - Environmental toxicology of hydrogen sulfide. PMID- 29017849 TI - Production of HIV virus-like particles by transient transfection of CAP-T cells at bioreactor scale avoiding medium replacement. AB - Human-derived CAP-T cell line has been demonstrated to be a powerful platform for high-titer production of HIV virus-like particles (VLPs) by PEI-mediated transient transfection. Scale-up of transfection processes is key to ensure the necessary quantities for pre-clinical and clinical testing. One of the major operational challenges of large-scale transient transfection is the medium replacement step that is often required before transfection. In this work, CAP-T cells were cultured in 1L bioreactor with addition of sodium bicarbonate and surface aeration, which were observed to improve cell state for transfection. Remarkably, the medium replacement step was avoided by culturing the cells in a combination of media (FreeStyleF17+1% of PEM) compatible with cell growth and PEI mediated transient transfection. In the conditions developed in this work, 0.5*106cells/mL were seeded in 1L bioreactor. Two days later, ~2*106cells/mL were transfected without medium exchange, using 0.5pg of DNA/cell and 3pg of PEI/cell. Transfection efficiency and VLP production comparable to shake flasks were obtained with a production of 4*1010VLPs/mL. This novel strategy significantly simplifies large-scale transient transfection, while suitable cell growth, transfection efficiency, and high quality VLP production are achieved. PMID- 29017850 TI - Expression of estrogen receptors in female rainbow trout (Oncorhynchus mykiss) during first ovarian development and under dense rearing condition. AB - To study the expression of four estrogen receptor genes (eralpha1, eralpha2, erbeta1, erbeta2) of female rainbow trout (Oncorhynchus mykiss) during first ovarian development, trouts were sampled from different ovarian stages. Serum E2 (estradiol) was measured by ELISA and estrogen receptors mRNA expression were examined by qRT-PCR. Our results showed a close association between increased eralpha1 and vitellogenin mRNA expression during ovarian maturation and increased eralpha2 mRNA expression in mature ovarian stages. Correlation analysis revealed that a negative relationship between serum E2 and ovarian erbeta1 (or hepatic erbeta2), but ovarian erbeta2 mRNA expression was relatively unchanged during first ovarian development. Trout were also reared in different densities as stocking density 1, 2 and 3 (SD1, 4.6-31.1 kg/m3; SD2, 6.6-40.6 kg/m3; SD3, 8.6 49.3 kg/m3) to elucidate effects of high density on estrogen receptor expression. Histology observation showed ovarian development of trout in higher densities were retard with a relatively early stage and fewer vitellogenin accumulation. Trout in high densities showed significantly decreased serum E2, eralpha mRNA expression and increasing trends of erbeta mRNA expression. A noticeable increase of ovarian erbeta2 mRNA expression was seen in trout when density is approaching to 50 kg/m3. In conclusion, we may hypothesize that increased erbeta mRNA expression triggered by high density result in decreased eralpha mRNA expression and vitellogenesis. As a result, ovarian development in higher densities was retard. PMID- 29017851 TI - Seasonal ovarian immunolocalization of neuropeptide Y and its role in steriodogenesis in Asian catfish, Clarias batrachus. AB - The present study was undertaken to examine the cellular localization and potential steroidogenic role of neuropeptide Y (NPY) in the ovary of the freshwater catfish, Clarias batrachus. NPY-immunoreaction was observed in the follicular cells (granulosa and thecal cells) in the growing ovarian follicles, and the intensity of staining increased steadily from the initiation of follicular development until follicles were fully grown. Thereafter as follicles matured the stain intensity decreased. Positive correlations were found between NPY expression and the ovarian levels of 17beta-estradiol, testosterone, and activities of 3beta-hydroxysteroid dehydrogenase (3beta-HSD) and 17beta hydroxysteroid dehydrogenase (17beta-HSD) in the ovary. In vitro NPY treatment stimulated the production of the two steroids and the activities of two enzymes. This is the first report of NPY immunoreactivity at the cellular level in the fish ovary and implicates this orexigenic peptide in the modulation of ovarian steroidogenesis. PMID- 29017852 TI - An Augmented Reality magic mirror as additive teaching device for gross anatomy. AB - When preparing young medical students for clinical activity, it is indispensable to acquaint them with anatomical section images which enable them to use the clinical application of imaging methods. A new Augmented Reality Magic Mirror (AR MM) system, which provides the advantage of a novel, interactive learning tool in addition to a regular dissection course, was therefore tested and evaluated by 880 first-year medical students as part of the macroscopic anatomy course in 2015/16 at Ludwig-Maximilians-Universitat (LMU) in Munich. The system consists of an RGB-D sensor as a real-time tracking device, which enables the system to link a deposited section image to the projection of the user's body, as well as a large display mimicking a real-world physical mirror. Using gesture input, the users have the ability to interactively explore radiological images in different anatomical intersection planes. We designed a tutorial during which students worked with the system in groups of about 12 and evaluated the results. Subsequently, each participant was asked to assess the system's value by filling out a Likert-scale questionnaire. The respondents approved all statements which stressed the potential of the system to serve as an additional learning resource for anatomical education. In this case, emphasis was put on active learning, 3 dimensional understanding, and a better comprehension of the course of structures. We are convinced that such an AR MM system can be beneficially installed into anatomical education in order to prepare medical students more effectively for the clinical standards and for more interactive, student-centered learning. PMID- 29017853 TI - Rampant polyphyly in the Arracacia clade (Apiaceae) and an assessment of the phylogenetic utility of 20 noncoding plastid loci. AB - The Arracacia clade (Apiaceae, Apioideae) is a heterogeneous assemblage of 12 genera, comprising 111 known species distributed in high montane temperate and sub-alpine habitats of meso- and South America. Previous studies have indicated that the genera Arracacia, Coulterophytum, and Prionosciadium are polyphyletic, but for the most part relationships among the members of the clade are largely unknown. Initially, cladistic analyses of nrDNA ITS sequences were carried out on 212 accessions (122 taxa), representing 92 species of the Arracacia clade and outgroups from the closely-related paramo genera Cotopaxia, Niphogeton, and Perissocoeleum and members of the Perennial Endemic North American clade and its allies. Using the ITS results to inform sampling of a small subset of taxa, a pilot study examining the phylogenetic utility of 20 noncoding chloroplast loci was subsequently performed to identify those regions most useful at resolving relationships. A cost-benefit analysis determined that five loci (trnQ-5'rps16, trnD-trnT, rpl32-trnL, psbD-trnT, ndhA intron) would maximize resolution and branch support in the clade. Cladistic analyses of four of these loci (trnQ 5'rps16, trnD-trnT, rpl32-trnL, ndhA intron) and the ITS region, separately and combined, revealed that Arracacia, Coaxana, Coulterophytum, Prionosciadium, and Rhodosciadium are each polyphyletic and that Donnellsmithia and Myrrhidendron are each monophyletic. Although most relationships in the Arracacia clade and among the closely-related genera Cotopaxia, Niphogeton, and Perissocoeleum are poorly resolved and supported, ten groups are recognized for future revisionary studies. Polyploidy and rapid species radiation have likely confounded generic circumscriptions and interpretation of relationships. PMID- 29017854 TI - PEGylated TRAIL ameliorates experimental inflammatory arthritis by regulation of Th17 cells and regulatory T cells. AB - TNF-related apoptosis-inducing ligand (TRAIL) is a death ligand that can induce apoptosis in cells expressing its cognate death receptors (DRs). Previously, we demonstrated the therapeutic potential of recombinant human TRAIL in experimental rheumatoid arthritis (RA) models. However, the mechanisms of how DR-mediated apoptosis elicits these actions is not known. Here, we show that systemically administering a potent, long-acting PEGylated TRAIL (TRAILPEG) is profoundly anti rheumatic against two complementary experimental RA mouse models, collagen induced arthritis (CIA) and collagen antibody-induced arthritis (CAIA), via targeting IL-17 secreting Th17 cells and regulatory T cells (Treg). Systemic administration of TRAILPEG after disease onset ameliorated the severity of inflammatory arthritis including arthritis indices, paw thickness, cartilage damage and neutrophil infiltration in both CIA and CAIA models. Additionally, the levels of inflammatory molecules (p-p65, ICAM-1, Cox-2, MMP3, and iNOS), pro inflammatory cytokines (TNF-alpha, IL-1beta, IFN-gamma, IL-6, IL-17) and accumulation of activated macrophages were significantly reduced after the TRAILPEG treatment. Importantly, TRAILPEG decreased the number of pro inflammatory Th17 cells in inflamed arthritic joints through TRAIL-induced apoptosis while increasing anti-inflammatory Treg population in vivo. These results suggest that TRAILPEG ameliorates autoimmunity by targeting the Th 17 Tregs axis, making it a promising candidate drug for the treatment of RA. PMID- 29017855 TI - Role of neuromedin U in accelerating of non-alcoholic steatohepatitis in mice. AB - Neuromedin U (NMU), a neuropeptide originally isolated from porcine spinal cord, has multiple physiological functions and is involved in obesity and inflammation. Excessive fat accumulation in the liver leads to non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH), which is closely associated with obesity. NAFLD and NASH develop and progress via complex pathophysiological processes, and it remains unclear to what extend the NMU system contributes to the risk of obesity-related disorders such as NAFLD and NASH. Here, we demonstrate that the NMU system plays a role in NAFLD/NASH pathogenesis. In the normal mouse liver, NMU mRNA was not detectable, and expression of the mRNA encoding neuromedin U receptor 1 (NMUR1), the peripheral receptor of NMU, was low. However, the expression of both was significantly increased in the livers of NASH mice. Furthermore, overproduction of NMU induced the mouse liver by hydrodynamic injection, exacerbated NASH pathogenesis. These data indicate a novel role for the peripheral NMU system, providing new insights into the pathogenesis of NAFLD/NASH. PMID- 29017856 TI - Planning an innovation marathon at an infectious disease conference with results from the International Meeting on Emerging Diseases and Surveillance 2016 Hackathon. AB - A hackathon is best described as an 'innovation marathon'. Derived from the words 'hacking' and 'marathon', it brings together multidisciplinary teams to collaborate intensely over a short period of time to define a problem, devise a solution, and design a working prototype. International scientific meetings are conducive to successful hackathons, providing an audience of expert professionals who describe challenges and ensure the proposed solutions address end-user needs. Collaborations with local organizations and academic centers are crucial to attracting complementary specialties such as IT advisors, engineers, and entrepreneurs to develop sustainable projects. The core process of first identifying and deconstructing a problem followed by solution iteration is applicable to challenges at workplaces around the world. Ultimately, this model can be used to drive innovation and catalyze change in the global health community. The planning, execution, and outcomes of a hackathon event organized in conjunction with the International Meeting on Emerging Diseases and Surveillance (IMED 2016) are described in this article. Physicians, public health practitioners, veterinarians, IT professionals, engineers, and entrepreneurs came together for 2days to develop solutions at the intersection of emerging infectious diseases and climate change. Projects that resulted from the IMED 2016 Hackathon included environmental impact assessment software for humanitarian organization relief efforts; enhanced communication tools to prevent disease outbreaks; a participatory mobile application to speed the elimination of rabies in Indonesia; integrated disease surveillance platforms; and an improved search function for infectious disease outbreak reports in the ProMED-mail network. PMID- 29017859 TI - A network meta-analysis of updated haemostatic strategies for hysterectomy: A response to the authors of IJS-D-17-01065. PMID- 29017860 TI - High BMI and male sex as risk factor for increased short-term renal impairment in living kidney donors. A response to comments raised. PMID- 29017861 TI - Propensity score-matched analysis of the endoscopic bilateral axillo-breast approach (BABA) versus conventional open thyroidectomy in patients with benign or intermediate fine-needle aspiration cytology results, a retrospective study. AB - BACKGROUND: The purpose of this study was to compare the surgical outcomes of endoscopic bilateral axillo-breast approach (BABA) to conventional open thyroidectomy (COT) in patients who had thyroid nodule(s) with a benign or intermediate fine-needle aspiration cytology (FNAC) results. MATERIALS AND METHODS: All patients with benign or intermediate thyroid nodule(s) who underwent BABA (n = 95) or COT (n = 262) between 2008 and 2015 were reviewed. Then, 1:1 propensity score matching was performed, and 66 matched pairs were obtained. Surgical outcomes were then compared. RESULTS: Before matching, patients in the BABA group were significantly younger (36.5 vs. 50.7 years, p < 0.000), predominantly female (97.9% vs. 69.8%, p < 0.000), had smaller tumours (2.1 vs. 2.8 cm, p = 0.002) and more commonly underwent hemithyroidectomy (88.4% vs. 70.6%, p < 0.000) than those in the COT group. After matching, all clinicopathological characteristics were equivalent. BABA was found to be significantly associated with longer operative time (125.3 vs. 79.8 min, p < 0.000), greater drainage volume (132.9 vs. 59.1 ml, p < 0.000), longer postoperative hospital stay (3.1 vs. 2.2 days, p < 0.000), and higher average total medical expense (4000 vs. 3200 US$). However, the incidence of complications did not differ between the groups. CONCLUSION: BABA is comparable to COT in terms of complications and is safe and feasible when performed by experienced surgeons and for carefully selected patients who are concerned about neck scarring. However, the operative time and postoperative hospital stay are significantly longer, which may increase medical expenses. PMID- 29017857 TI - Administration of 5-methoxyindole-2-carboxylic acid that potentially targets mitochondrial dihydrolipoamide dehydrogenase confers cerebral preconditioning against ischemic stroke injury. AB - The objective of this study was to investigate a possible role of mitochondrial dihydrolipoamide dehydrogenase (DLDH) as a chemical preconditioning target for neuroprotection against ischemic injury. We used 5-methoxyindole-2-carboxylic acid (MICA), a reportedly reversible DLDH inhibitor, as the preconditioning agent and administered MICA to rats mainly via dietary intake. Upon completion of 4 week's MICA treatment, rats underwent 1h transient ischemia and 24h reperfusion followed by tissue collection. Our results show that MICA protected the brain against ischemic stroke injury as the infarction volume of the brain from the MICA-treated group was significantly smaller than that from the control group. Data were then collected without or with stroke surgery following MICA feeding. It was found that in the absence of stroke following MICA feeding, DLDH activity was lower in the MICA treated group than in the control group, and this decreased activity could be partly due to DLDH protein sulfenation. Moreover, DLDH inhibition by MICA was also found to upregulate the expression of NAD(P)H ubiquinone oxidoreductase 1(NQO1) via the Nrf2 signaling pathway. In the presence of stroke following MICA feeding, decreased DLDH activity and increased Nrf2 signaling were also observed along with increased NQO1 activity, decreased oxidative stress, decreased cell death, and increased mitochondrial ATP output. We also found that MICA had a delayed preconditioning effect four weeks post MICA treatment. Our study indicates that administration of MICA confers chemical preconditioning and neuroprotection against ischemic stroke injury. PMID- 29017858 TI - The transcriptional response of skin to fluorescent light exposure in viviparous (Xiphophorus) and oviparous (Danio, Oryzias) fishes. AB - Differences in light sources are common in animal facilities and potentially can impact experimental results. Here, the potential impact of lighting differences on skin transcriptomes has been tested in three aquatic animal models commonly utilized in biomedical research, (Xiphophorus maculatus (platyfish), Oryzias latipes (medaka) and Danio rerio (zebrafish). Analysis of replicate comparative RNA-Seq data showed the transcriptional response to commonly utilized 4100K or "cool white" fluorescent light (FL) is much greater in platyfish and medaka than in zebrafish. FL induces genes associated with inflammatory and immune responses in both medaka and zebrafish; however, the platyfish exhibit suppression of genes involved with immune/inflammation, as well as genes associated with cell cycle progression. Furthermore, comparative analyses of gene expression data from platyfish UVB exposures, with medaka and zebrafish after exposure to 4100K FL, show comparable effects on the same stress pathways. We suggest the response to light is conserved, but that long-term adaptation to species specific environmental niches has resulted in a shifting of the wavelengths required to incite similar "genetic" responses in skin. We forward the hypothesis that the "genetic perception" of light may have evolved differently than ocular perception and suggest that light type (i.e., wavelengths emitted) is an important parameter to consider in experimental design. PMID- 29017862 TI - Emergency repair of upper extremity large soft tissue and vascular injuries with flow-through anterolateral thigh free flaps. AB - BACKGROUND/OBJECTIVES: Complex extremity trauma commonly involves both soft tissue and vascular injuries. Traditional two-stage surgical repair may delay rehabilitation and functional recovery, as well as increase the risk of infections. We report a single-stage reconstructive surgical method that repairs soft tissue defects and vascular injuries with flow-through free flaps to improve functional outcomes. METHODS: Between March 2010 and December 2016 in our hospital, 5 patients with severe upper extremity trauma received single-stage reconstructive surgery, in which a flow-through anterolateral thigh free flap was applied to repair soft tissue defects and vascular injuries simultaneously. Cases of injured artery were reconstructed with the distal trunk of the descending branch of the lateral circumflex femoral artery. A segment of adjacent vein was used if there was a second artery injury. Patients were followed to evaluate their functional recoveries, and received computed tomography angiography examinations to assess peripheral circulation. RESULTS: Two patients had post operative thumb necrosis; one required amputation, and the other was healed after debridement and abdominal pedicle flap repair. The other 3 patients had no major complications (infection, necrosis) to the recipient or donor sites after surgery. All the patients had achieved satisfactory functional recovery by the end of the follow-up period. Computed tomography angiography showed adequate circulation in the peripheral vessels. CONCLUSIONS: The success of these cases shows that one-step reconstructive surgery with flow-through anterolateral thigh free flaps can be a safe and effective treatment option for patients with complex upper extremity trauma with soft tissue defects and vascular injuries. PMID- 29017863 TI - Surgical volunteerism as a collaborative teaching activity can benefit surgical residents in low-middle income countries. AB - Surgical care is desperately needed in low-middle income countries (LMIC). Due to small numbers of faculty in local training programs, residents have limited exposure to subspecialists. We describe a teaching activity between visiting surgeons from the U.S. and a residency program in Malawi as an example for how surgeons in high income countries can meaningfully contribute. A short-term education activity was developed where residents participated in a pre-test on pediatric surgical management, lectures, intra-operative instruction, bedside rounds and a post-test. Five residents participated and all intend to practice in sub-Saharan Africa. All residents improved their scores from the pre-test to post test (mean 44%-91%). The residency program performs approximately 1200 major surgical cases and 800 minor surgical procedures each year, representing a broad range of general surgery. Additionally, the residents encounter a broad range of pathology. Short-term mentorship activities in partnership with an established training program can enhance surgical resident education in LMIC, particularly for subspecialty care. PMID- 29017864 TI - Clinicopathological and prognostic significance of FoxM1 in gastric cancer: A meta-analysis. AB - BACKGROUND: The relationship between expression of FoxM1 and clinical parameters of patients with gastric cancer (GC) has yet to be fully established. METHODS: A systematic search was performed. Odds ratio (OR) and confidence interval (CI) were used to assess association between expression of FoxM1 and clinical parameters and the prognostic value of patients with GC. RESULTS: Eight studies involving 529 patients with GC were identified. Overall, the pooled results showed that expression of FoxM1 was associated with TNM stage (OR: 0.482, 95%CI: 0.275-0.845, P = 0.011), depth of invasion (OR: 0.617, 95%CI: 0.382-0.998, P = 0.049) and lymph node metastasis (OR: 2.084, 95%CI: 1.305-3.328, P = 0.002) in the patients with GC. Whereas, expression of FoxM1 was not associated with gender (OR: 1.143, 95%CI: 0.726-1.799, P = 0.564) and tumors' differentiation (OR: 0.991, 95%CI: 0.624-1.575, P = 0.971) of GC. Expression of FoxM1 was also associated with poor prognosis of overall survival (OS) in the patients with GC (one year OS: OR: 0.218, 95%CI: 0.103-0.459, P = 0.000; three years OS: OR: 0.178, 95%CI: 0.093-0.340, P = 0.000; five years OS: OR: 0.180, 95%CI: 0.095 0.341, P = 0.000). CONCLUSION: Expression of FoxM1 is associated with TNM stage, depth of invasion, lymph node metastasis and poor prognosis of the patients with GC. PMID- 29017865 TI - BMI and short-term outcomes in living kidney donors: Where surgery and nephrology meet: High BMI and male sex as risk factor for increased short-term renal impairment in living kidney donors - Retrospective analysis of 289 consecutive cases. PMID- 29017869 TI - Risk assessment and quality improvement of liquid waste management in Taiwan University chemical laboratories. AB - The policy of establishing new universities across Taiwan has led to an increase in the number of universities, and many schools have constructed new laboratories to meet students' academic needs. In recent years, there has been an increase in the number of laboratory accidents from the liquid waste in universities. Therefore, how to build a safety system for laboratory liquid waste disposal has become an important issue in the environmental protection, safety, and hygiene of all universities. This study identifies the risk factors of liquid waste disposal and presents an agenda for practices to laboratory managers. An expert questionnaire is adopted to probe into the risk priority procedures of liquid waste disposal; then, the fuzzy theory-based FMEA method and the traditional FMEA method are employed to analyze and improve the procedures for liquid waste disposal. According to the research results, the fuzzy FMEA method is the most effective, and the top 10 potential disabling factors are prioritized for improvement according to the risk priority number (RNP), including "Unclear classification", "Gathering liquid waste without a funnel or a drain pan", "Lack of a clearance and transport contract", "Liquid waste spill during delivery", "Spill over", "Decentralized storage", "Calculating weight in the wrong way", "Compatibility between the container material and the liquid waste", "Lack of dumping and disposal tools", and "Lack of a clear labels for liquid waste containers". After tracking improvements, the overall improvement rate rose to 60.2%. PMID- 29017866 TI - as-PSOCT: Volumetric microscopic imaging of human brain architecture and connectivity. AB - Polarization sensitive optical coherence tomography (PSOCT) with serial sectioning has enabled the investigation of 3D structures in mouse and human brain tissue samples. By using intrinsic optical properties of back-scattering and birefringence, PSOCT reliably images cytoarchitecture, myeloarchitecture and fiber orientations. In this study, we developed a fully automatic serial sectioning polarization sensitive optical coherence tomography (as-PSOCT) system to enable volumetric reconstruction of human brain samples with unprecedented sample size and resolution. The 3.5 MUm in-plane resolution and 50 MUm through plane voxel size allow inspection of cortical layers that are a single-cell in width, as well as small crossing fibers. We show the abilities of as-PSOCT in quantifying layer thicknesses of the cerebellar cortex and creating microscopic tractography of intricate fiber networks in the subcortical nuclei and internal capsule regions, all based on volumetric reconstructions. as-PSOCT provides a viable tool for studying quantitative cytoarchitecture and myeloarchitecture and mapping connectivity with microscopic resolution in the human brain. PMID- 29017867 TI - Volumetric reconstruction from printed films: Enabling 30 year longitudinal analysis in MR neuroimaging. AB - Hospitals often hold historical MR image data printed on films without being able to make it accessible to modern image processing techniques. Having the possibility to recover geometrically consistent, volumetric images from scans acquired decades ago will enable more comprehensive, longitudinal studies to understand disease progressions. In this paper, we propose a consistent framework to reconstruct a volumetric representation from printed films holding thick single-slice brain MR image acquisitions dating back to the 1980's. We introduce a flexible framework based on semi-automatic slice extraction, followed by automated slice-to-volume registration with inter-slice transformation regularisation and slice intensity correction. Our algorithm is robust against numerous detrimental effects being present in archaic films. A subsequent, isotropic total variation deconvolution technique revitalises the visual appearance of the obtained volumes. We assess the accuracy and perform the validation of our reconstruction framework on a uniquely long-term MRI dataset where a ground-truth is available. This method will be used to facilitate a robust longitudinal analysis spanning 30 years of MRI scans. PMID- 29017870 TI - Biogas purification with biomass ash. AB - The aim of the study was to investigate the option to purify biogas from small scale biogas plants by entrapping CO2 and H2S with regionally available biomass ash. Connected to the existing biogas plant Neustift (Tyrol) wood ash placed in a 1 m3 container was used as a trap for CO2 and H2S in the biogas. With the process conditions chosen, for a period of a few hours CO2 was trapped resulting in pure methane. The removal of H2S was much longer-lasting (up to 34 d). The cumulative H2S uptake by the biomass ash ranged from 0.56 to 1.25 kg H2S per ton of ash. The pH of the ash and the leachability of Lead and Barium were reduced by the flushing with biogas, however toxicity towards plants was increased thus reducing the potential of ash use in agriculture. It can be concluded that biomass ash may be used for removal of hydrogen sulphide from biogas in small and medium biogas plants. The economic evaluation, however, indicated that the application of this system is limited by transport distances for the ash and its potential use afterwards. PMID- 29017871 TI - Theoretical analysis of municipal solid waste treatment by leachate recirculation under anaerobic and aerobic conditions. AB - Long-term emissions of Municipal Solid Waste (MSW) landfills are a burden for future generations because of the required long-term aftercare. To shorten aftercare, treatment methods have to be developed that reduce long-term emissions. A treatment method that reduces emissions at a lysimeter scale is re circulation of leachate. However, its effectiveness at the field scale still needs to be demonstrated. Field scale design can be improved by theoretical understanding of the processes that control the effectiveness of leachate recirculation treatment. In this study, the simplest and most fundamental sets of processes are distilled that describe the emission data measured during aerobic and anaerobic leachate recirculation in lysimeters. A toolbox is used to select essential processes with objective performance criteria produced by Bayesian statistical analysis. The controlling processes indicate that treatment efficiency is mostly affected by how homogeneously important reactants are spread through the MSW during treatment. A more homogeneous spread of i.e. oxygen or methanogens increases the total amount of carbon degraded. Biodegradable carbon removal is highest under aerobic conditions, however, the hydrolysis rate constant is lower which indicates that hydrolysis is not enhanced intrinsically in aerobic conditions. Controlling processes also indicate that nitrogen removal via sequential nitrification and denitrification is plausible under aerobic conditions as long as sufficient biodegradable carbon is present in the MSW. Major removal pathways for carbon and nitrogen are indicated which are important for monitoring treatment effectiveness at a field scale. Optimization strategies for field scale application of treatments are discussed. PMID- 29017868 TI - Rates of Anovulation in Adolescents and Young Adults with Moderate to Severe Primary Dysmenorrhea and Those without Primary Dysmenorrhea. AB - STUDY OBJECTIVE: To evaluate rates of presumptive anovulation in eumenorrheic adolescents and young adults with moderate to severe primary dysmenorrhea and those without primary dysmenorrhea. DESIGN: Participants completed luteinizing hormone surge ovulation predictor test kits. Anovulatory cycles were defined by never receiving a positive result before the next menstrual period; participants were grouped as anovulatory if they experienced at least 1 anovulatory cycle during study participation. Participants rated daily level of menstrual pain on a 0-10 numeric rating scale. SETTING: A university-based clinical research laboratory. PARTICIPANTS: Thirty-nine adolescents and young adults (ages 16-24) with primary dysmenorrhea and 52 age-matched control girls. INTERVENTIONS AND MAIN OUTCOME MEASURES: Rates of presumptive anovulation. RESULTS: One hundred sixty-eight cycles were monitored, 29.8% (N = 50) of which were anovulatory (37.1% [39/105] vs 17.5% [11/63] of cycles in control and dysmenorrhea groups, respectively). During study participation, control girls were significantly more likely to have had at least 1 anovulatory cycle than were girls with primary dysmenorrhea (44.2% [23/52] vs 17.9% [7/39] of participants, respectively; P < .01). Cycle length and number of bleeding days between ovulatory and anovulatory cycles were similar. The primary dysmenorrhea group's maximum menstrual pain ratings did not differ between ovulatory and anovulatory cycles (4.77 and 4.36, respectively; P > .05). CONCLUSION: Our data support previous findings of increased rates of ovulation in primary dysmenorrhea. However, menstruation after anovulatory cycles can be as painful as menstruation after ovulatory cycles. These data support the idea that regular menses do not necessarily indicate that a normal ovulatory cycle has occurred. Previous implications that ovulation is necessary for the development of substantial menstrual pain are incomplete. PMID- 29017873 TI - Rheological characterisation of biologically treated and non-treated putrescible food waste. AB - Food waste is gaining increasing attention worldwide due to growing concerns over its environmental and economic costs. Understanding the rheological behaviour of food waste is critical for effective processing so rheological measurements were carried out for different food waste compositions at 25, 35 and 45 degrees C. Food waste samples of various origins (carbohydrates, vegetables & fruits, and meat), anaerobically digested and diluted samples were used in this study. The results showed that food waste exhibits shear-thinning flow behaviour and viscosity of food waste is a function of temperature and composition. The composition of food waste affected the flow properties. Viscosity decreased at a given temperature as the proportion of carbohydrate increased. This may be due to the high water content of vegetable & fruits as the total solids fraction is likely to be a key controlling factor of the rheology. The Herschel-Bulkley model was used successfully to model food waste flow behaviour. Also, a higher strain was needed to break down the structure of the food waste as digestion time increased. PMID- 29017872 TI - Anaerobic digestion of cheese whey: Energetic and nutritional potential for the dairy sector in developing countries. AB - Cheese whey (CW) is the main waste generated in the cheesemaking process and has high organic matter content and acidity. Therefore, CW disposal is a challenge for small to medium enterprises (SMEs) in the dairy industry that do not have any type of treatment plant. Anaerobic digestion (AD) is an attractive process for solving this problem. The aim of this research was to determine the biomethane and struvite precipitation potentials of CW from four dairy SMEs. First, changes in CW properties (organic matter and pH) were evaluated. Second, biomethane and struvite potentials were assessed using cattle slurry as inoculum. The organic matter in CW varied from 40 to 65gVS/kg, 65 to 140g COD/L, and 2 to 10g/L for VFAs depending on the sampling time and type of sample. The pH of the CW samples ranged from 3 to 6.5. In the anaerobic biodegradability analysis, methane yields reached 0.51 to 0.60L CH4/g VSadded, which represented electrical and caloric potentials of 54 and 108kWh/m3 for CW, respectively. Organic matter removal in all experiments was above 83%. Moreover, anaerobic digestates presented NH4+/PO43 molar ratios between 2.6 and 4.0, which are adequate for struvite precipitation with potential production of 8.5-10.4g struvite/L CW. Finally, the use of biogas as energetic supplement and struvite as soil fertilizer, represents economics saves of US$ 6.91/m3 CW and US$ 5.75/m3 CW in therms of electricity and fertilizer use, respectively. The energetic, agricultural and economic potentials, evidence that AD process is a feasible alternative for cheese whey treatment. PMID- 29017874 TI - Temporal relationships between food acquisition and voluntary exercise in mice. AB - Patterns of operant food acquisition in a closed economy and bouts of either voluntary wheel running (WR) or spontaneous locomotor activity in a standard condition (SC) with no wheel were examined in young adult male and female C57BL/6 mice across a range of nose poke prices (FUP) per food pellet. Both sexes showed vigorous WR or locomotor activity. At each FUP, WR groups had higher food intake than SC groups. Despite substantially higher mean body weight of males compared with females, intakes and activity did not differ by sex in the SC groups and males lost weight more rapidly as FUP increased. In contrast, WR males ran ~33% further per day than females, increased their food intake (above that of SC counterparts) more than females, and lost less body weight than SC males. By parsing the night in four 3h epochs it was found that food intake declined progressively through the night in both WR and SC mice and that the hyperphagia of WR relative to SC groups was most evident early in the night, coincident with highest activity. No large or systematic sex differences were revealed in these temporal analyses. Analysis of data at 60s resolution showed that pellet acquisition occurred in many small or short bouts, the timing of which was either intercalated or concurrent with either locomotor activity or WR. The results show that increased eating due to WR occurs concurrently with maximum running, and with no evidence of delayed compensation. PMID- 29017875 TI - Hierarchical dynamics influence the distribution of immature black flies (Diptera: Simuliidae). AB - Adult black flies (Simuliidae) are medically important insects and they are the sole vector of Onchocerca volvulus. Immature black flies are major components of aquatic macroinvertebrate assemblages in streams and play a vital role in nutrient dynamics. In this study, we examined effect of hierarchical dynamics (spatio-temporal pattern) on the distribution of immature black flies in South Indian streams. The sampling was done in streams of Western Ghats, South India. A total of 16 species belong to two subgenera: Simulium (10 species) and Gowmphostilbia (6 species) of Simulium were observed. Alpha diversity indices were analyzed, which indicate the abundance and species richness between sampling sites. Non-parametric analysis recognized the key environmental variables including latitude and stream order. Subsequently, the monsoon influences the larval assemblages and its association was high in leaf litter as revealed through statistical analyses. Although the members of the immature black fly assemblage with different environmental factors, they are very closely related to spatial and temporal organization and secondarily with other factors prevailing in streams. PMID- 29017876 TI - Animal and human tungiasis-related knowledge and treatment practices among animal keeping households in Bugiri District, South-Eastern Uganda. AB - BACKGROUND: Zoonotic tungiasis caused by Tunga penetrans remains a serious public and animal health problem among endemic villages in Uganda and many sub Saharan African countries. Studies on human and animal tungiasis-related knowledge and treatment practices in endemic communities have never been undertaken, a limitation to development of sustainable control measures. METHODS: A cross sectional study using semi-structured questionnaires (Supplementary file S1) was conducted among 236 animal rearing households in 10 endemic villages in Bugiri District, South-Eastern Uganda. Focus group discussions and observation checklists were used to validate and clarify the findings. RESULTS: Most respondents knew the aetiology (89.4%), clinical signs (98%) and the ecology of T. penetrans as well as the major risk factors of human tungiasis (65.2%). In contrast, very few respondents were aware of animal tungiasis. Only 4.8% of those with infected animals on the compound knew that some of their animals were infected and 13.6% of the respondents had ever seen tungiasis-affected animals. Pigs (13.1%, n=31) and dogs (0.85%, n=2) were the only T. penetrans animal hosts known to animal owners. Affected humans were treated by extraction of embedded sand fleas using non-sterile sharp instruments in all households that reported occurrence of human tungiasis at least once (n=227). Also, affected animals were mainly treated by mechanical removal of embedded sand fleas in households that have ever experienced animal tungiasis (four out of 12; 33.3%). In a few instances, plant and animal pesticides (n=3) and other chemicals such as grease, paraffin and wood preservative (n=3) were also used to treat animal tungiasis. CONCLUSION: The study revealed a high level of knowledge on human tungiasis but inadequate knowledge on the zoonotic nature of tungiasis. Commonly applied methods for treatment of human and animal tungiasis are a health hazard by themselves. Concerted i.e. One Health-based efforts aiming at promoting appropriate treatment of tungiasis, adequate living conditions and increased awareness on tungiasis in the communities are indicated in order to eliminate tungiasis-associated disease. PMID- 29017877 TI - Therapeutic efficacy of artesunate - amiodaquine for treating uncomplicated falciparum malaria at Ghindae Zonal Referral Hospital, Eritrea. AB - INTRODUCTION: The aim of this study was to assess the efficacy of artesunate amodiaquine (AS+AQ) which is the first-line treatment for uncomplicated falciparum malaria in Eritrea. MATERIALS AND METHODS: The study was conducted from December 2014 to March 2015 in Ghindae Zonal Referral Hospital in Northern Red Sea Zone. Out of 481 patients screened, 103 were enrolled in the study. The therapeutic efficacy test was done as per the WHO protocol for a period of 28days of follow-up. RESULTS: The PCR-uncorrected treatment outcome was classified as adequate clinical and parasitological response (ACPR) in 95 patients, which meant the cure rate was 96.0 (95% CI: 89.7%-98.5%) after survival analysis. CONCLUSIONS: Therapeutic efficacy of AS+AQ still meets the WHO efficacy criteria for its continued use in the study area as the first-line drug against uncomplicated falciparum malaria. However, further studies are needed using correction with molecular markers to monitor therapeutic efficacy of antimalarial drugs in this area. PMID- 29017878 TI - Andean cutaneous leishmaniasis (Andean-CL, uta) in Peru and Ecuador: the causative Leishmania parasites and clinico-epidemiological features. AB - This study provides comprehensive information on the past and current status of the Andean cutaneous leishmaniasis (Andean-CL, uta) in Peru and Ecuador, mainly focusing on the causative Leishmania parasites and clinico-epidemiological features. Available information and data including our unpublished works were analyzed thoroughly. Endemic regions of the Andean-CL (uta) in Peru run from the north Piura/Cajamarca to the south Ayacucho at a wide range of the Pacific watersheds of the Andes through several departments, while in Ecuador those exist at limited and spotted areas in the country's mid-southwestern two provinces, Azuay and Chimborazo. The principal species of the genus Leishmania are completely different at subgenus level, L. (Viannia) peruviana in Peru, and L. (Leishmania) mexicana and L. (L.) major-like (infrequent occurrence) in Ecuador. The Peruvian uta is now prevalent in different age and sex groups, being not clearly defined as found in the past. The precise reasons are not known and should be elucidated further, though probable factors, such as emergence of other Leishmania parasites, non-immune peoples' migration into the areas, etc., were discussed briefly in the text. The Andean-CL cases in Ecuador are more rural than before, probably because of a rapid development of the Leishmania-positive communities and towns, and the change of life-styles of the inhabitants, including newly constructed houses and roads in the endemic areas. Such information is helpful for future management of the disease, not only for Leishmania-endemic areas in the Andes but also for other endemic areas. PMID- 29017879 TI - Preparation of poly(lactide)/lignin/silver nanoparticles composite films with UV light barrier and antibacterial properties. AB - Organosolv lignin was used as a reducing agent for the preparation of silver nanoparticles (AgNPs) and their incorporation into poly(lactide) (PLA) polymer to prepare composite films. The composite films were characterized using UV-vis spectroscopy, FE-SEM, FTIR, XRD, and TGA. The optical, mechanical, water vapor barrier, and antibacterial properties of the composite films were evaluated. The UV-vis spectra of films exhibited two characteristics peaks around 300 and 450nm attributed to lignin and AgNPs, respectively. XRD results indicated that the crystalline AgNPs had been formed. The transmission of light at 280nm decreased significantly after incorporation of lignin and AgNPs. FTIR results showed that there was no change in the chemical structure of PLA after incorporation of lignin and AgNPs. The mechanical and water vapor barrier properties of the composite films increased after lignin and AgNPs incorporation, The films containing AgNPs exhibited potent antibacterial activity against Escherichia coli and Listeria monocytogenes. PMID- 29017880 TI - Development, physicochemical characterization and cytotoxicity of selenium nanoparticles stabilized by beta-lactoglobulin. AB - Novel Selenium nanoparticles (SeNPs) were developed using beta-lactoglobulin (Blg) as a stabilizer in redox systems of selenite and ascorbic acid in this study. Particle size, morphology, stability, and in vitro biological activity of synthesized Blg stabilized selenium nanoparticles (Blg-SeNPs) were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), ultraviolet-visible spectrophotometry (UV/Vis), and cell toxicity assays, respectively. Stabilizing mechanisms of Blg-SeNPs were investigated by Fourier transform infrared spectroscopy (FTIR) and protein fluorescence probe. The results revealed that the Blg-SeNPs were spherical with mean particle size of 36.8+/-4.1nm. They were stable in acidic or neutral to basic solutions (pH 2.5 3.5 or 6.5-8.5) at 4 degrees C for 30days as a result of electrostatic repulsions. FTIR results showed that functional groups of NH2 and OH on Blg molecules were responsible for binding with SeNPs. Furthermore, decreases in protein surface hydrophobicity indicated that possible binding happened between Se and the hydrophobic domains of Blg. The cell toxicity of Blg-SeNPs was significantly lower than that of sodium selenite on both cancerous and non cancerous cells. This study provides a facile and green method for chemically synthesizing stable SeNPs which are suitable for further evaluation in medicinal applications. PMID- 29017881 TI - The effects of allantoin, arginine and NaCl on thermal melting and aggregation of ribonuclease, bovine serum albumin and lysozyme. AB - Allantoin is widely used as a skin care agent and readily forms crystals, which were recently shown to bind endotoxins and high molecular weight aggregates in cell culture harvests. Here, we have investigated the effects of allantoin on thermal stability and aggregation of protein using ribonuclease, bovine serum albumin and lysozyme using temperature-regulated circular dichroism (CD) and differential scanning microcalorimetry (DSC). Ribonuclease showed no change in thermal stability and aggregation by the addition of allantoin. While allantoin showed no effects on the thermal stability of bovine serum albumin, it enhanced aggregation. Similarly, allantoin showed no stabilizing effects on lysozyme, but it strongly suppressed aggregation. Such suppressed aggregation resulted in reversibility of thermal unfolding of lysozyme. These effects of allantoin were then compared with those of NaCl and arginine hydrochloride. Arginine was similar to allantoin at low concentrations, where both solvent additives can be compared due to limited solubility of allantoin. PMID- 29017882 TI - Enzymatic purification and structure characterization of glucuronoxylan from water extract of Cassia obtusifolia seeds. AB - Enzymatic hydrolysis was proposed for the first time to purify the sub-fraction of water-extracted cassia polysaccharide (CP-40), and a homogeneous polysaccharide CP-40-M was obtained with relatively high yield. The structural features of CP-40-M were characterized using size-exclusion chromatography equipped with multiple detectors (SEC-MALLS), high-performance anion-exchange chromatography (HPAEC), methylation and gas chromatography-mass (GC-MS), as well as nuclear magnetic resonance (NMR) spectra. The weight-average molecular weight for CP-40-M was determined to be 0.29*105Da, and the molar ratio of xylose to glucuronic acid was 4.62. The structure of CP-40-M was elucidated to be glucuronoxylan, with glucopyranosyluronic acid group terminally attached to O-2 of the ->4)-beta-Xylp-(1-> backbone. It was the first time to obtain this type of xylan from the water extract of Cassia obtusifolia seeds. The structure elucidation of CP-40-M was meaningful for better understanding the natural characteristics of cassia polysaccharide and important for their potential use in food industry and folk medicine. PMID- 29017883 TI - Effect of salt on the coil-helix transition of gelatin at early stages: Optical rotation, rheology and DSC studies. AB - The influence of the concentration and type of salt on the physical gelation of gelatin at early stages was explored by polarimeter, rheometer and differential scanning calorimetry (DSC). With the increase of salt concentration, both the triple helix content and the storage modulus of gelatin increased slightly and then decreased in CaCl2 solutions, whereas they decreased monotonically in NaCl and CrCl3 solutions. The addition of CaCl2 at low concentrations facilitated the coil-helix transition of gelatin, which could be significantly inhibited by high salt concentrations. The melting temperature of gels was nearly unchanged with varying salt concentration, but the melting enthalpy decreased monotonically with salt addition. This result indicates that salt additions mainly affect the nucleation of triple helices, but had minor effect on its growth. In addition, the coil-helix transition of gelatin in salt solutions at early stages could be treated successfully by an equation of first order kinetics. PMID- 29017884 TI - Molecular and immunological toxic effects of nanoparticles. AB - Nanoparticles have emerged as a boon for the public health applications such as drug delivery, diagnostic, and imaging. Biodegradable and non-bio degradable nanoparticles have been used at a large scale level to increase the efficiency of the biomedical process at the cellular, animal and human level. Exponential use of nanoparticles reinforces the adverse immunological changes at the human health level. Physical and chemical properties of nanoparticles often lead to a variety of immunotoxic effects such as activation of stress-related genes, membrane disruption, and release of pro-inflammatory cytokines. Delivered nanoparticles in animal or human interact with various components of the immune system such as lymphocytes, macrophages, neutrophils etc. Nanoparticles delivered above the threshold level damages the cellular physiology by the generation of reactive oxygen and nitrogen species. This review article represents the potential of nanoparticles in the field of nanomedicine and provides the critical evidence which leads to develop immunotoxicity in living cells and organisms by altering immunological responses. PMID- 29017885 TI - Simplified approach for in-vitro production and purification of cell derived Cancer Antigen 15-3. AB - Cancer antigen 15-3 (CA15-3) is a key biomarker, currently used for understanding the onset and prognosis of breast cancer. In present investigation, CA15-3 has been purified from the culture supernatant of breast cancer T47-D cell line with 76% yield and 3350 fold purification. Isolated CA15-3 was analyzed by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE), immunoblotting (western blotting), chemiluminescence immunoassay (CLIA) and Fourier-transform infrared spectroscopy (FTIR). CA15-3 is a monomeric protein with an apparent molecular mass in between ~250-350kDa. The FTIR spectroscopy revealed similar profiles of T47-D derived CA15-3 and commercially available CA15-3 protein. With the easy availability of T47-D cell line and a simple purification approach described here will support for the large scale production of CA15-3 to be used for various clinical and diagnostic applications. PMID- 29017886 TI - Complex coacervation between lysozyme and pectin: Effect of pH, salt, and biopolymer ratio. AB - The complexation between lysozyme and pectin was studied by acidification using zeta potential, turbidity measurements and calorimetry titration. The complexes were analyzed in various NaCl concentrations with different ratios. At ratio 1:1 with 0.01M NaCl, is worth mentioning that the insoluble complexes were formed between pH 2.0 and 7.0, which represents a great range to apply this complex to different food matrices. When the ratio was increased from 1:1 to 3:1, the pH range between the pHphi1 and pHphi2 increased even more. When the NaCl concentration was increased from 0.01M to 0.2M, a progressive reduction of turbidity was observed. At 0.4M NaCl, there was total suppression of complex formation at ratio <= 3:1. The process of complex coacervate formation occurred in two different steps, presenting favorable enthalpic as well as entropic contributions. The positive entropy change is a strong indication that water molecules have been released from the complex surface, however the positive sign of TDeltaS suggests that hydrophobic interactions were involved in the interaction between lysozyme and pectin. Microscopy images of the samples revealed that the complexes presented a spheroid-like appearance which may contribute to possible future applications. PMID- 29017887 TI - Functional properties and utilization of Artocarpus heterophyllus Lam seed starch from new species in China. AB - Jackfruit is now receiving extensive attention as a new source of starch. However, jackfruit seeds are discarded as waste, although they are rich in starch. The functional properties of the starches were investigated from new Chinese jackfruit species. All the starches have a high amylose (26.56-38.34%) with a potential to become functional foods rich in resistant starch. The jackfruit starches varied from trigonal and tetragonal, round to semi-oval/bell shapes and showed significant variations in particle sizes (5.53-14.46MUm). These variations led to significant differences in their functional properties, and significant correlations were found in their pasting, thermal, crystal and texture parameters. Hierarchical cluster analysis sorted the samples into three groups of 1) Malaysia 8 (M8) and ZhenZhu (ZZ); 2) Malaysia 2, Malaysia 3 and Malaysia 4, (M2, M3, M4); and 3) Xiangyinsuo 11, Xiangyinsuo 4, Xiangyinsuo 3 and Xiangyinsuo 2 (X11, X4, X3, X2). The first group could be used as food thickening or gelling agents. The second group could be applied in glutinous foods. The third group make them suitable for fillings in confectionery or weaning foods. PMID- 29017888 TI - Impact of amikacin pharmacokinetic/pharmacodynamic index on treatment response in critically ill patients. AB - OBJECTIVES: This study evaluated the association between the pharmacokinetic/pharmacodynamic index and treatment response to amikacin in critically ill patients. METHODS: An observational prospective study was designed. Critically ill adult patients with infection due to amikacin-sensitive Gram-negative bacteria treated with amikacin were included. Amikacin maximum (Cmax) and minimum (Cmin) plasma concentration samples were taken during the first 48-96h after the beginning of treatment. The impact of Cmax/MIC ratio and area under the concentration-time curve (AUC)/MIC ratio on early and final clinical response, microbiological eradication, development of resistant strains and renal toxicity was analysed using a multivariate model. RESULTS: A total of 85 patients received amikacin treatment, of whom 71 (83.5%) achieved a Cmax/MIC >6, 66 (77.6%) a Cmax/MIC >8, 64 (75.3%) a Cmax/MIC >10 and 72 (84.7%) an AUC/MIC >65. Clinical response at the end of treatment was significantly greater in patients with Cmax/MIC >6 [OR=5.48 (95% CI 1.28-11.40)], Cmax/MIC >8 [OR=6.01 (2.41-12.2)] and Cmax/MIC >10 [OR=8.02 (2.21-14.2)]. Cmax/MIC >10 was associated with a non-significant increase in microbiological eradication [OR=2.84 (0.76 10.61)]. Achieving Cmax/MIC >6 was associated with a lower proportion of patients with selection of resistant strains or with an increase in amikacin MIC (27.8% vs. 10.2%). Amikacin AUC was associated with development of nephrotoxicity [ROC curve 0.77 (0.66-0.87)]. CONCLUSIONS: The Cmax/MIC ratio of amikacin in critically ill patients is directly related to the response to treatment and the selection of resistant strains. PMID- 29017889 TI - Complete genome sequence of Acinetobacter baumannii A1296 (ST1469) with a small plasmid harbouring the tet(39) tetracycline resistance gene. AB - OBJECTIVES: Acinetobacter baumannii is considered an important nosocomial pathogen worldwide owing to its increasing antibiotic resistance. This study aimed to determine the complete genome sequence of A. baumannii strain A1296 and to perform a comparative analysis among A. baumannii. METHODS: The complete genome sequence of A. baumannii A1296 was sequenced on two SMRT cells using P6C4 chemistry on a PacBio Single Molecule, Real-Time (SMRT) RS II instrument. The A1296 genome sequence was annotated using Prokaryotic Genome Automatic Annotation Pipeline (PGAAP), and the sequence type and resistance genes of the strain were analysed. RESULTS: Here we present the complete genome sequence of A. baumannii strain A1296, belonging to a novel sequence type (ST1469) and isolated from patient in China, that was sensitive to multiple antibiotics. The genome of A. baumannii A1296 was 3810701bp in length, including one circular chromosome and two plasmids. The tet(39) resistance gene was located on the small plasmid in this A. baumannii strain. CONCLUSIONS: The genome sequence of A. baumannii strain A1296 can be used as a reference sequence for comparative analysis aimed at elucidating the acquisition, dissemination and mobilisation of resistance genes among A. baumannii. PMID- 29017890 TI - Faulty BRCA1, BRCA2 genes: how poor is the prognosis? AB - We take a critical look at the meaning behind the number 87% given to 25-year-old Sophie, a BRCA1 and BRCA2 carrier. Sophie has been told she has an 87% chance of getting breast cancer. She is contemplating a preventive double mastectomy after genetic counseling and her physician's advice. Some 92% of British general practitioners are in favor of prophylactic mastectomy as a treatment option for women similar to Sophie. The treatment decision results, to a very large extent, from the size of the number (87%) alone. The central argument of this study is that physicians, their patients, and the public need a much better understanding on what is meant by probability estimates of 0.87. The figure on its own does not tell us much, and we need to be very cautious in its interpretation. It is important to know that the very same genetic and statistical models, and observed data, resulting in a verdict of an 87% lifetime chance of getting breast cancer, based on BRCA1, BRCA2, and familial information, simultaneously show Sophie to have a greater than 99% chance of surviving beyond the next 5 years cancer free. If she succeeds-the chances are overwhelmingly in her favor-then, given that fact, her chances of surviving a further 5 years are once again greater than 98%. Her chances of not dying due to breast cancer over the next 20 years are greater than 97%, a percentage that changes little if instead of 20 we write the number 30. In a word, although the diagnosis of a faulty BRAC gene may be a disappointment, there is no immediate peril and no need for undue alarm. Sophie, and her primary care providers, can carefully consider her options without feeling that they are under any kind of acute pressure. Whatever the threat, it is not an imminent one. PMID- 29017891 TI - A pilot study of an accelerometer-equipped smartphone to monitor older adults with cancer receiving chemotherapy in Mexico. AB - OBJECTIVES: Older adults with cancer in developing countries face challenges accessing healthcare due to a lack of personnel and infrastructure. A decline in physical activity (defined as a decrease in the number of daily steps) may be a novel method for the timely detection of toxicity in older adults receiving chemotherapy in resource-constrained settings. MATERIALS AND METHODS: In this feasibility study, patients aged >=65years starting first-line chemotherapy for solid tumors were given a smartphone with a pedometer application. Daily steps were monitored daily for one cycle. If a >=15% decrease from baseline was identified, the patient was called and the presence of toxicity assessed. The intervention would be feasible if >=75% of the subjects recorded steps for >=75% of the planned chemotherapy days. RESULTS: Forty patients (median age 73; 57% [N=23] female) were included. Seventy percent (N=28) had stage III-IV disease with 45% (N=18) gastrointestinal, 23% (N=9) breast, and 32% (N=13) other malignancies. Mean pre-treatment daily steps was 3111 (Standard Deviation [SD] 1731), and median follow-up was 21days (range 2-28). Despite having limited exposure to mobile technology, most (93%) patients used the smartphone appropriately, and 85% found it easy to use. Sixty percent of patients (N=24) had toxicities managed over the phone, 27.5% (N=10) were sent for urgent medical attention and 15% (N=6) were hospitalized. CONCLUSION: Using smartphones to monitor older adults with cancer receiving chemotherapy in a resource-constrained setting is feasible and acceptable. A decrease in the number of daily steps was common and helped to identify chemotherapy toxicity. PMID- 29017892 TI - Muscle functions and bone strength are impaired in adolescents with type 1 diabetes. AB - BACKGROUND: Sarcopenia and osteoporosis are among the late complications of type 1 diabetes (T1D) in adults. Whether and to what extent musculoskeletal impairment is present in childhood and adolescence has yet to be determined. The aim of this study was to assess volumetric bone mineral density (BMD) and dynamic muscle function in adolescents with T1D and to assess the clinical and biochemical predictors of their musculoskeletal system. METHODS: Ninety-five children and adolescents (59 boys and 36 girls, mean age 16.2+/-1.2years) with T1D were included in this cross-sectional study. Study participants were divided into two groups according to the duration of the disease (<6years and >9years, respectively). Volumetric BMD of the non-dominant tibia was assessed using peripheral quantitative computed tomography (pQCT). Dynamic muscle function was evaluated using jumping mechanography. Gender- and height-specific Z-scores were calculated using published reference data. HbA1c was evaluated retrospectively as an average over the past 5years. RESULTS: Relative muscle power (Pmax/mass) and force (Fmax/body weight) were significantly decreased in T1D subjects (mean Z scores -0.4+/-1.0; p<0.001, and -0.3+/-1.1; p<0.01, respectively). The duration of T1D negatively affected Pmax/mass (p<0.01) but not Fmax/body weight (p=0.54). Patients with T1D had also decreased trabecular BMD, the Strength-Strain Index and cortical thickness (mean Z-scores -0.8+/-1.3; -0.5+/-0.8 and -1.1+/-0.8, respectively, p<0.001 for all) whereas cortical BMD was increased when compared to controls (Z-score 1.2+/-0.90, p<0.001). No association was observed between the HbA1c and 25-hydroxyvitamin D levels and bone or muscle parameters. CONCLUSION: T1D influences the musculoskeletal system in adolescence. Decreased muscle function could contribute to the osteoporosis reported in adult diabetic patients. PMID- 29017894 TI - Rotavirus-encoded virus-like small RNA triggers autophagy by targeting IGF1R via the PI3K/Akt/mTOR pathway. AB - Rotaviruses are double-stranded RNA viruses that are a major cause of viral diarrhea in infants. Examining virus-host cell interaction is important for elucidating mechanisms of virus proliferation in host cells. Viruses can create an environment that promotes their survival and self-proliferation by encoding miRNAs or miRNA-like molecules that target various host cell. However, it remains unclear whether RNA viruses encode viral miRNAs, and their regulation mechanisms are largely unknown. We previously performed deep sequencing analysis to investigate rotavirus-encoded miRNAs, and identified the small RNA molecule Chr17_1755, which we named RV-vsRNA1755. In our present study, we determined that RV-vsRNA1755 is encoded by the rotavirus NSP4 gene and that it targets the host cell IGF1R, which is part of the PI3K/Akt pathway. We further explored the biological characteristics and functions of RV-vsRNA1755.Our results suggest that rotavirus adapts to manipulate PI3K/Akt signaling at early phases of infection. RV-vsRNA1755 targets IGF1R, blockading the PI3K/Akt pathway and triggering autophagy, but it ultimately inhibits autophagy maturation. A mechanism through which rotavirus encodes a virus-like small RNA (RV-vsRNA1755) that triggers autophagy by targeting the host cell IGF1R gene was revealed. These data provide a theoretical basis for therapeutic drug screening targeting RV-vsRNA1755. PMID- 29017896 TI - MG53 and disordered metabolism in striated muscle. AB - MG53 is a member of tripartite motif family (TRIM) that expressed most abundantly in striated muscle. Using rodent models, many studies have demonstrated the MG53 not only facilitates membrane repair after ischemia reperfusion injury, but also contributes to the protective effects of both pre- and post-conditioning. Recently, however, it has been shown that MG53 participates in the regulation of many metabolic processes, especially insulin signaling pathway. Thus, sustained overexpression of MG53 may contribute to the development of various metabolic disorders in striated muscle. In this review, using cardiac muscle as an example, we will discuss muscle metabolic disturbances associated with diabetes and the current understanding of the underlying molecular mechanisms; in particular, the pathogenesis of diabetic cardiomyopathy. We will focus on the pathways that MG53 regulates and how the dysregulation of MG53 leads to metabolic disorders, thereby establishing a causal relationship between sustained upregulation of MG53 and the development of muscle insulin resistance and metabolic disorders. This article is part of a Special issue entitled Cardiac adaptations to obesity, diabetes and insulin resistance, edited by Professors Jan F.C. Glatz, Jason R.B. Dyck and Christine Des Rosiers. PMID- 29017893 TI - Chronic inflammation - inflammaging - in the ageing cochlea: A novel target for future presbycusis therapy. AB - Chronic, low-grade inflammation, or inflammaging, is a crucial contributor to various age-related pathologies and natural processes in aging tissue, including the nervous system. Over the past two decades, much effort has been done to understand the mechanisms of inflammaging in disease models such as type II diabetes, cardiovascular disease, Alzheimer's disease, Parkinson's disease, and others. However, despite being the most prevalent neurodegenerative disorder, the number one communication disorder, and one of the top three chronic medical conditions of our aged population; little research has been conducted on the potential role of inflammation in age-related hearing loss (ARHL). Recently, it has been suggested that there is an inflammatory presence in the cochlea, perhaps involving diffusion processes of the blood-brain barrier as it relates to the inner ear. Recent research has found correlations between hearing loss and markers such as C-reactive protein, IL-6, and TNF-alpha indicating inflammatory status in human case-cohort studies. However, there have been very few reports of in vivo research investigating the role of chronic inflammation's in hearing loss in the aging cochlea. Future research directed at better understanding the mechanisms of inflammation in the cochlea as well as the natural changes acquired with aging may provide a better understanding of how this process can accelerate presbycusis. Animal model experimentation and pre-clinical studies designed to recognize and characterize cochlear inflammatory mechanisms may suggest novel treatment strategies for preventing or treating ARHL. In this review, we seek to summarize key research in chronic inflammation, discuss its implications for possible roles in ARHL, and finally suggest directions for future investigations. PMID- 29017897 TI - Patients' Conceptions of Terms Related to Sexual Interest, Desire, and Arousal. AB - BACKGROUND: Measurement of sexual function typically uses self-report, which, to work as intended, must use language that is understood consistently by diverse respondents. Commonly used measures employ multiple terms, primarily (sexual) interest, desire, and arousal, that might not be understood in the same way by laypeople and professionals. AIM: To inform self-reported measurement efforts for research and clinical settings by examining how US men and women recruited from a health care setting understand and interpret different terms. METHODS: We conducted 10 focus groups in Durham, NC (N = 57). Discussions were audio-recorded and transcribed, and the content of the discussions was systematically analyzed in 2 phases of coding by the research team, facilitated by Nvivo qualitative analysis software (QSR International, Doncaster, VIC, Australia). OUTCOMES: Patient focus group discussions about the meanings and connotations of multiple terms related to sexual function, especially interest, desire, and arousal. RESULTS: 5 groups included male participants and 5 included female participants. Participants characterized (sexual) interest as a cognitive phenomenon and a situational response to a specific person. Similarly, they characterized (sexual) desire as a situational person-specific experience with some support for it as a cognitive phenomenon but more support for it as a physical phenomenon. In contrast, participants characterized sexual arousal as a physical phenomenon occurring in response to physical or visual stimulation and not related to a specific person. CLINICAL IMPLICATIONS: These results can help us understand how laypeople are using and responding to these terms when they are used in clinical and research settings. STRENGTHS AND LIMITATIONS: Patient participants in these groups were diverse in age, gender, sexual orientation, and health, with the potential to voice diverse perspectives on sexual functioning; however, the sample was limited to a single city in the southeastern United States. CONCLUSION: The meanings of interest, desire, and arousal were defined, compared, and contrasted in the context of patient focus groups. Qualitative coding showed that interest was considered the most "cognitive," arousal the most "physical," and desire somewhere in between. DeLamater JD, Weinfurt KP, Flynn KE. Patients' Conceptions of Terms Related to Sexual Interest, Desire, and Arousal. J Sex Med 2017;14:1327-1335. PMID- 29017898 TI - A hierarchical structure for human behavior classification using STN local field potentials. AB - BACKGROUND: Classification of human behavior from brain signals has potential application in developing closed-loop deep brain stimulation (DBS) systems. This paper presents a human behavior classification using local field potential (LFP) signals recorded from subthalamic nuclei (STN). METHOD: A hierarchical classification structure is developed to perform the behavior classification from LFP signals through a multi-level framework (coarse to fine). At each level, the time-frequency representations of all six signals from the DBS leads are combined through an MKL-based SVM classifier to classify five tasks (speech, finger movement, mouth movement, arm movement, and random segments). To lower the computational cost, we alternatively use the inter-hemispheric synchronization of the LFPs to make three pairs out of six bipolar signals. Three classifiers are separately trained at each level of the hierarchical approach, which lead to three labels. A fusion function is then developed to combine these three labels and determine the label of the corresponding trial. RESULTS: Using all six LFPs with the proposed hierarchical approach improves the classification performance. Moreover, the synchronization-based method reduces the computational burden considerably while the classification performance remains relatively unchanged. COMPARISON WITH EXISTING METHODS: Our experiments on two different datasets recorded from nine subjects undergoing DBS surgery show that the proposed approaches remarkably outperform other methods for behavior classification based on LFP signals. CONCLUSION: The LFP signals acquired from STNs contain useful information for recognizing human behavior. This can be a precursor for designing the next generation of closed-loop DBS systems. PMID- 29017899 TI - A brain-computer interface based on functional transcranial doppler ultrasound using wavelet transform and support vector machines. AB - BACKGROUND: Functional transcranial Doppler (fTCD) is an ultrasound based neuroimaging technique used to assess neural activation that occurs during a cognitive task through measuring velocity of cerebral blood flow. NEW METHOD: The objective of this paper is to investigate the feasibility of a 2-class and 3 class real-time BCI based on blood flow velocity in left and right middle cerebral arteries in response to mental rotation and word generation tasks. Statistical features based on a five-level wavelet decomposition were extracted from the fTCD signals. The Wilcoxon test and support vector machines (SVM), with a linear kernel, were employed for feature reduction and classification. RESULTS: The experimental results showed that within approximately 3s of the onset of the cognitive task average accuracies of 80.29%, and 82.35% were obtained for the mental rotation versus resting state and the word generation versus resting state respectively. The mental rotation task versus word generation task achieved an average accuracy of 79.72% within 2.24s from the onset of the cognitive task. Furthermore, an average accuracy of 65.27% was obtained for the 3-class problem within 4.68s. COMPARISON WITH EXISTING METHODS: The results presented here provide significant improvement compared to the relevant fTCD-based systems presented in literature in terms of accuracy and speed. Specifically, the reported speed in this manuscript is at least 12 and 2.5 times faster than any existing binary and 3-class fTCD-based BCIs, respectively. CONCLUSIONS: These results show fTCD as a promising and viable candidate to be used towards developing a real-time BCI. PMID- 29017895 TI - Short-term fructose ingestion affects the brain independently from establishment of metabolic syndrome. AB - Chronic fructose ingestion is linked to the global epidemic of metabolic syndrome (MetS), and poses a serious threat to brain function. We asked whether a short period (one week) of fructose ingestion potentially insufficient to establish peripheral metabolic disorder could impact brain function. We report that the fructose treatment had no effect on liver/body weight ratio, weight gain, glucose tolerance and insulin sensitivity, was sufficient to reduce several aspects of hippocampal plasticity. Fructose consumption reduced the levels of the neuronal nuclear protein NeuN, Myelin Basic Protein, and the axonal growth-associated protein 43, concomitant with a decline in hippocampal weight. A reduction in peroxisome proliferator-activated receptor gamma coactivator-1 alpha and Cytochrome c oxidase subunit II by fructose treatment is indicative of mitochondrial dysfunction. Furthermore, the GLUT5 fructose transporter was increased in the hippocampus after fructose ingestion suggesting that fructose may facilitate its own transport to brain. Fructose elevated levels of ketohexokinase in the liver but did not affect SIRT1 levels, suggesting that fructose is metabolized in the liver, without severely affecting liver function commensurable to an absence of metabolic syndrome condition. These results advocate that a short period of fructose can influence brain plasticity without a major peripheral metabolic dysfunction. PMID- 29017900 TI - Neural electrode resilience against dielectric damage may be improved by use of highly doped silicon as a conductive material. AB - BACKGROUND: Dielectric damage occurring in vivo to neural electrodes, leading to conductive material exposure and impedance reduction over time, limits the functional lifetime and clinical viability of neuroprosthetics. We used silicon micromachined Utah Electrode Arrays (UEAs) with iridium oxide (IrOx) tip metallization and parylene C dielectric encapsulation to understand the factors affecting device resilience and drive improvements. NEW METHOD: In vitro impedance measurements and finite element analyses were conducted to evaluate how exposed surface area of silicon and IrOx affect UEA properties. Through an aggressive in vitro reactive accelerated aging (RAA) protocol, in vivo parylene degradation was simulated on UEAs to explore agreement with our models. Electrochemical properties of silicon and other common electrode materials were compared to help inform material choice in future neural electrode designs. RESULTS: Exposure of silicon on UEAs was found to primarily affect impedance at frequencies >1kHz, while characteristics at 1 kHz and below were largely unchanged. Post-RAA impedance reduction of UEAs was mitigated in cases where dielectric damage was more likely to expose silicon instead of IrOx. Silicon was found to have a per-area electrochemical impedance >10*higher than many common electrode materials regardless of doping level and resistivity, making it best suited for use as a low-shunting conductor. COMPARISON WITH EXISTING METHODS: Non semiconductor electrode materials commonly used in neural electrode design are more susceptible to shunting neural interface signals through dielectric defects, compared to highly doped silicon. CONCLUSION: Strategic use of silicon and similar materials may increase neural electrode robustness against encapsulation failures. PMID- 29017901 TI - Immediate reactions to iodinated contrast media. AB - BACKGROUND: Immediate hypersensitivity reactions (IHRs) to iodinated contrast media (ICMs) remain a common clinical concern. Positive skin test and basophil activation test results suggest a specific IgE-mediated mechanism in some cases. Skin test and controlled challenge test (CCT) are useful to manage these patients. OBJECTIVE: To study clinical and allergologic features of IHRs to ICMs in a Spanish tertiary hospital during a 7-year period. METHODS: Demographic and clinical data concerning the reaction were recorded. Patients treated at the Allergy Department of Hospital General Universitario Gregorio Maranon, Madrid, Spain, underwent skin tests. In those with positive results, CCTs with an alternative skin-test-negative ICM was performed. Global reaction rate was calculated and compared for each ICM. RESULTS: A total of 342 reactions occurred in 329 patients. Cutaneous symptoms were the most common (87.7%). A total of 196 patients underwent an allergy workup, 15 (7.6%) of whom had positive skin test results. Reactions were more severe in patients with positive vs negative skin test results (grade 1, 46.7% vs 73.6%; grade 2, 33.3% vs 20.9%; grade 3, 20% vs 5.46%; P < .05). Three patients had cross-reactivity to 3 ICMs, all including ioversol and iomeprol. Six patients allergic to iopamidol tolerated ioversol and 1 tolerated iomeprol. Four patients allergic to ioversol and 1 allergic to iomeprol tolerated iopamidol. The global reaction rate was 0.2%, differing for each ICM (iopamidol, 0.14%; ioversol, 0.2%; and iomeprol, 0.4%; P < .001). Positive skin test results were found in a low percentage of patients in whom skin test-based CCT identified an alternative non-cross-reactive ICM. Low-grade cross-reactivity was found, especially between iopamidol and ioversol. Reactions were more severe in patients with positive skin test results. The reaction rate was greater for iomeprol compared with iopamidol (reaction rate, 2.8%) and ioversol (reaction rate, 2%). CONCLUSION: This study identified a possible underlying specific IgE-mediated mechanism by positive skin test result in a low percentage of patients with IHRs to ICMs. In these patients, the CCT based on skin test results was useful for identifying an alternative non-cross-reactive ICM. More studies are needed to investigate the underlying mechanism in patients with IHRs and negative skin test results. PMID- 29017902 TI - Small percentage of anaphylactic reactions treated with epinephrine during food challenges in Dutch children. AB - BACKGROUND: Severe allergic reactions, including anaphylaxis, occur during oral food challenges (OFCs) and the first-line treatment of anaphylaxis is epinephrine. OBJECTIVE: To evaluate the percentage of anaphylactic reactions treated with epinephrine during OFCs and to identify associated factors for the administration of epinephrine. METHODS: Children who underwent an OFC with peanut, hazelnut, cow's milk, hen's egg, or cashew nut from 2005 through 2015 in the Netherlands were evaluated. Children with reactions meeting the criteria for anaphylaxis according to the European Academy of Allergy and Clinical Immunology guidelines for food allergy and anaphylaxis were included. Children with an anaphylactic reaction treated with vs without epinephrine were compared. Possible factors associated with the administration of epinephrine, such as age, sex, symptoms consistent with asthma, history of an allergic reaction to the tested allergen, and symptom types during the anaphylactic reaction, were evaluated using logistic regression analysis. RESULTS: Eighty-three children in clinical and research settings (43% boys; median age, 7 years; range, 1-17) who met the criteria for anaphylaxis were included in this study. Thirty-two of 83 children (39%) with anaphylaxis were treated with epinephrine. Respiratory symptoms during the OFC were treated significantly more often with epinephrine than gastrointestinal symptoms (P = .01). CONCLUSION: Only 39% of children with anaphylaxis, according to the guideline criteria, were treated with epinephrine during the OFC and most of these children had respiratory symptoms. There is need for an easy-to-use international guideline for the treatment of allergic symptoms during OFCs. PMID- 29017903 TI - Successful perinatal management of hereditary angioedema with normal C1 esterase inhibitor and factor XII mutation using C1 esterase inhibitor therapy. PMID- 29017904 TI - Spicing up your advice for South Asian and Anglo-Australians with type 2 diabetes and CVD: Do cultural constructions of diet matter? AB - South Asians are a growing migrant population, both globally and in Australia. This group are at higher risk for both cardiovascular disease and type 2 diabetes. The aim of this qualitative study was to compare dietary practices of South Asians, n = 41 (Indian, n = 25; Sri Lankan, n = 16) and Anglo-Australians, n = 16, with these conditions, using semi-structured in-depth interviews. Findings suggest that both groups had a high level of awareness of dietary practices necessary for optimum disease management, both prior to and post diagnosis. Bi-directional effects of migration were noted in the dietary practices of both groups suggesting hybrid diets are evident in Australia. A key barrier to implementing dietary changes highlighted by both groups of participants was a lack of specific, timely and detailed dietary advice from clinicians. Both groups expressed that advice should be repeated and reinforced throughout the course of their disease. In addition, South Asian participants wanted more culturally relevant advice. Clinicians providing dietary advice need to recognise that preferences for staple food items are resistant to change and may affect adherence. Acculturation was evident in the dietary practices of the South Asian participants. Nevertheless, many maintained traditional food practices which were tied to their cultural identity. It is recommended that clinicians consider these factors when offering advice. PMID- 29017905 TI - Evaluation of a pilot sensory play intervention to increase fruit acceptance in preschool children. AB - Recent research has found an association between dislike of messy play and higher levels of food neophobia in children. The aim of the present study was to pilot and assess a five week intervention with preschool children, to examine whether engagement in tactile sensory tasks leads to increased fruit acceptance. Interventions were carried out to examine whether weekly sessions of sensory play combined with fruit exposure, would increase acceptance and enjoyment of fruits to a greater extent than two non-sensory play conditions featuring fruit exposure or normal play activities alone. One hundred children aged 18 months to four years were recruited from ten playgroups in the Midlands area of the United Kingdom (UK) of which 83 completed the interventions. Participants were randomly assigned to one of four conditions: combined sensory play (fruit and non-food), non-food sensory play, fruit taste exposure, and control play. There were baseline differences in child fruit acceptance, so this was entered as a covariate into subsequent analyses. It was found that children in both the combined sensory play and non-food sensory play conditions enjoyed significantly more fruits at follow up than children in the control play condition, whilst children in the non-food sensory play group also enjoyed significantly more fruits than the fruit exposure group. These findings suggest that sensory play, with fruit and/or non-food substances, combined with exposure may be an effective strategy to increase tasting and fruit acceptance in children. PMID- 29017907 TI - The longitudinal link between mothers' and adolescents' snacking: The moderating role of television viewing. AB - A large proportion of adolescents eats too many energy-dense snacks, which is detrimental for their current and future health. To understand how to promote healthy dietary behaviors in adolescents, we need to identify factors that affect their snacking. While previous cross-sectional work has shown mother-child similarities in eating behavior, longitudinal studies are lacking. Hence, the first aim of this study was to examine whether maternal snacking predicted changes in adolescents' snacking over time. A second aim was to examine whether adolescents' television viewing magnified the strength of this longitudinal association. Television viewing may increase the motivation to eat the snacks consumed by mothers later on, for example through food advertisement exposure and mindless eating. To address both aims, 2051 adolescents (Mage baseline = 13.81; 51.5% boys) were asked to report on their snacking and television viewing three times, with intervals of one year. Moreover, a subsample of mothers of adolescents (N = 1080) reported on their snacking at baseline as well. The results indicate that maternal snacking indeed predicts adolescents' snacking over time and that this effect is more pronounced among adolescents who watch a great amount of television. These findings attest to the importance of mothers in forming adolescents' snacking, not only concurrently but also prospectively. Additionally, this study highlights the relevance of assessing other home environmental factors that may influence maternal effects on their children's snacking. PMID- 29017906 TI - Clustering of multiple energy balance related behaviors is associated with body fat composition indicators in adolescents: Results from the HELENA and ELANA studies. AB - The objective of this study was to identify clustering patterns of four energy balance-related behaviors (EBRB): television (TV) watching, moderate and vigorous physical activity (MVPA), consumption of fruits and vegetables (F&V), and consumption of sugar-sweetened beverages (SSB), among European and Brazilian adolescents. EBRB associations with different body fat composition indicators were then evaluated. Participants included adolescents from eight European countries in the HELENA (Healthy Lifestyle in Europe by Nutrition in Adolescents) study (n = 2,057, 53.8% female; age: 12.5-17.5 years) and from the metropolitan region of Rio de Janeiro/Brazil in the ELANA study (the Adolescent Nutritional Assessment Longitudinal Study) (n = 968, 53.2% female; age: 13.5-19 years). EBRB data allowed for sex- and study-specific clusters. Associations were estimated by ANOVA and odds ratios. Five clustering patterns were identified. Four similar clusters were identified for each sex and study. Among boys, different cluster identified was characterized by high F&V consumption in the HELENA study and high TV watching and high MVPA time in the ELANA study. Among girls, the different clusters identified was characterized by high F&V consumption in both studies and, additionally, high SSB consumption in the ELANA study. Regression analysis showed that clusters characterized by high SSB consumption in European boys; high TV watching, and high TV watching plus high MVPA in Brazilian boys; and high MVPA, and high SSB and F&V consumption in Brazilian girls, were positively associated with different body fat composition indicators. Common clusters were observed in adolescents from Europe and Brazil, however, no cluster was identified as being completely healthy or unhealthy. Each cluster seems to impact on body composition indicators, depending on the group. Public health actions should aim to promote adequate practices of EBRB. PMID- 29017908 TI - Visually suboptimal bananas: How ripeness affects consumer expectation and perception. AB - One reason for the significant amount of food that is wasted in developed countries is that consumers often expect visually suboptimal food as being less palatable. Using bananas as example, the objective of this study was to determine how appearance affects consumer overall liking, the rating of sensory attributes, purchase intention, and the intended use of bananas. The ripeness degree (RD) of the samples was adjusted to RD 5 (control) and RD 7 (more ripened, visually suboptimal). After preliminary experiments, a total of 233 participants were asked to judge their satisfaction with the intensity of sensory attributes that referred to flavor, taste, and texture using just-about-right scales. Subjects who received peeled samples were asked after tasting, whereas subjects who received unpeeled bananas judged expectation and, after peeling and tasting, perception. Expected overall liking and purchase intention were significantly lower for RD 7 bananas. Purchase intention was still significantly different between RD 5 and RD 7 after tasting, whereas no difference in overall liking was observed. Significant differences between RD 5 and RD 7 were observed when asking participants for their intended use of the bananas. Concerning the sensory attributes, penalty analysis revealed that only the firmness of the RD 7 bananas was still not just-about-right after tasting. The importance that consumers attribute to the shelf-life of food had a pronounced impact on purchase intention of bananas with different ripeness degree. In the case of suboptimal bananas, the results demonstrate a positive relationship between the sensory perception and overall liking and purchase intention. Convincing consumers that visually suboptimal food is still tasty is of high relevance for recommending different ways of communication. PMID- 29017910 TI - Developmental ethanol exposure alters the morphology of mouse prefrontal neurons in a layer-specific manner. AB - Chronic developmental exposure to ethanol can lead to a wide variety of teratogenic effects, which in humans are known as fetal alcohol spectrum disorders (FASD). Individuals affected by FASD may exhibit persistent impairments to cognitive functions such as learning, memory, and attention, which are highly dependent on medial prefrontal cortex (mPFC) circuitry. The objective of this study was to determine long-term effects of chronic developmental ethanol exposure on mPFC neuron morphology, in order to better-understand potential neuronal mechanisms underlying cognitive impairments associated with FASD. C57BL/6-strain mice were exposed to ethanol or an isocaloric/isovolumetric amount of sucrose (control) via oral gavage, administered both to the dam from gestational day 10-18 and directly to pups from postnatal day 4-14. Brains from male mice were collected at postnatal day 90 and neurons were stained using a modified Golgi-Cox method. Pyramidal neurons within layers II/III, V and VI of the mPFC were imaged, traced in three dimensions, and assessed using Sholl and branch structure analyses. Developmental ethanol exposure differentially impacted adult pyramidal neuron morphology depending on mPFC cortical layer. Neurons in layer II/III exhibited increased size and diameter of dendrite trees, whereas neurons in layer V were not affected. Layer VI neurons with long apical dendrites had trees with decreased diameter that extended farther from the soma, and layer VI neurons with short apical dendrite trees exhibited decreased tree size overall. These layer-specific alterations to mPFC neuron morphology may form a novel morphological mechanism underlying long-term mPFC dysfunction and resulting cognitive impairments in FASD. PMID- 29017909 TI - Objectively measuring effects of electro-acupuncture in parkinsonian rhesus monkeys. AB - Acupuncture has increasingly been used as an alternative therapy for treatment of Parkinson's disease (PD). However, the efficacy of acupunture for PD still remains unclear. The present study was designed to objectively and safely monitor anti-parkinsonian effects of electroacupuncture (EA) and brain activity in nonhuman primates modeling human PD. Six middle-aged rhesus monkeys were extensively studied by a computerized behavioral testing battery and by pharmacological MRI (phMRI) scans with specific dopaminergic drug stimulations. All animals were evaluated for behavior and phMRI responses under normal, parkinsonian, parkinsonian with EA treatment and parkinsonian after EA treatment conditions. Stable parkinsonian features were observed in all animals prior to entering the EA study and positive responses to levodopa (L-dopa) challenge were also seen in all animals. The results demonstrated that chronic EA treatments could significantly improve the movement speed and the fine motor performance time during the period of EA treatments, and the effectiveness of EA could be detected even 3 months after the EA treatment. The phMRI data revealed that chronic EA treatments could alter neuronal activity in the striatum, primary motor cortex (M1), cingulate gyrus and global pallidus externa (GPe) in the ipsilateral hemisphere to MPTP lesions. As seen in the changes of parkinsonian features, the residual effects of phMRI responses to apomorphine (APO) challenge could also be found in the aforementioned areas. The results strongly suggest that anti-parkinsonian effects of EA can be objectively assessed, and the method used in the present study could be translated into the human clinic with some minor modifications. PMID- 29017911 TI - Combination of a short cognitive training and tDCS to enhance visuospatial skills: A comparison between online and offline neuromodulation. AB - Visuospatial skills can be enhanced thanks to specific intervention programs, but the additional benefits of neuromodulation on these skills have not been fully investigated yet, although transcranial direct current stimulation (tDCS) has demonstrated to boost the effects of cognitive trainings. When combining cognitive intervention with neuromodulation, the time-window of tDCS application in relation to task execution has to be taken into account since it has been shown to affect stimulation outcomes. The aim of the present experiment was to investigate the influence of tDCS in enhancing the effects of a training for visuospatial skills. We hypothesized that tDCS applied during training execution (online) would improve the cognitive performance at a larger extent than tDCS applied before training execution (offline). Participants received anodal tDCS over the dorsolateral prefrontal cortex during (online) or before (offline) the completion of the training. A control sham condition was included. Visuospatial abilities were measured 24 h before (day 1, pre-test) and 24 h after (day 3, post test) the stimulation and training session (day 2). tDCS enhanced gains for mental folding performance when applied during the execution of the training (online). Participants' mental rotation and mental folding performance improved from pre-test to post-test regardless of the stimulation condition. However participants in the online tDCS condition showed the largest improvement in mental folding performance. Findings indicate that tDCS enhanced the effects of the training when applied during its execution, showing cumulative positive aftereffects on visuospatial performance 24 h after the stimulation session. The time-dependent effect points out the importance of the time-window of tDCS application in influencing behavior when combined with cognitive programs. PMID- 29017912 TI - CSF Abeta1-42, but not p-Tau181, differentiates aMCI from SCI. AB - AIM: Individuals with amnestic mild cognitive impairment (aMCI) are at a high risk to develop Alzheimer's disease (AD). We compared CSF levels of biomarkers of amyloidosis (Abeta1-42) and neurodegeneration (p-Tau181) in individuals with aMCI and with subjective cognitive impairment (SCI) in order to ascertain diagnostic accuracy and predict the odds ratio associated with aMCI. METHODS: We collected CSF of individuals clinically diagnosed with aMCI (33) and SCI (12) of a memory clinic of Southern Brazil. Levels of Abeta1-42 and p-Tau181 were measured by immunoenzymatic assay. Participants also underwent neuropsychological testing including the verbal memory test subscore of the Consortium to Establish a Registry for Alzheimer's Disease (VM-CERAD). RESULTS: CSF concentration of Abeta1 42 was significantly lower (p: .007) and p-Tau181/Abeta1-42 ratio higher (p: .014) in aMCI individuals than in SCI. However, isolate p-Tau181 levels were not associated with aMCI (p: .166). There was a statistically significant association between Abeta1-42 and p-Tau181 (R2: 0.177; beta: -4.43; p: .017). ROC AUC of CSF Abeta1-42 was 0.768 and of the p-Tau181/Abeta1-42 ratio equals 0.742. Individuals with Abeta1-42 < 823 pg/mL levels were 6.0 times more likely to be diagnosed with aMCI (p: .019), with a 68.9% accuracy. Those with p-Tau181/Abeta1-42 ratio > 0.071 were at 4.6 increased odds to have aMCI (p: .043), with a 64.5% accuracy. VM-CERAD was significantly lower in aMCI than among SCI (p: .041). CONCLUSION: CSF Abeta1-42, but not p-Tau181, level was significantly associated with aMCI. PMID- 29017913 TI - The use of natural compounds for the targeting and chemoprevention of ovarian cancer. AB - Among gynaecological cancers, ovarian cancer represents the leading cause of death in women. Current treatment for ovarian cancer entails surgery followed by combined chemotherapy with platinum and taxane, which are associated, particularly cisplatin, with severe side effects. While this treatment approach appears to be initially effective in a high number of patients, nearly 70% of them suffer a relapse within a few months after initial treatment. Therefore, more effective and better-tolerated treatment options are clearly needed. In recent years, several natural compounds (such as curcumin, epigallocatechin 3 gallate (EGCG), resveratrol, sulforaphane and Withaferin-A), characterized by long-term safety and negligible and/or inexistent side effects, have been proposed as possible adjuvants of traditional chemotherapy. Indeed, several in vitro and in vivo studies have shown that phytocompounds can effectively inhibit tumor cell proliferation, stimulate autophagy, induce apoptosis, and specifically target ovarian cancer stem cells (CSCs), which are generally considered to be responsible for tumor recurrence in several types of cancer. Here we review current literature on the role of natural products in ovarian cancer chemoprevention, highlighting their effects particularly on the regulation of inflammation, autophagy, proliferation and apoptosis, chemotherapy resistance, and ovarian CSC growth. PMID- 29017914 TI - The roles of class I histone deacetylases (HDACs) in memory, learning, and executive cognitive functions: A review. AB - Coordinated changes in gene expression are critical for synaptic plasticity supporting learning, memory, and optimal cognitive task performance. These gene expression changes are not only mediated by signaling pathways that activate transcription factors, but also by chromatin modifications that influence the accessibility of the transcriptional machinery to specific genomic regions. During the past decade, evidence accumulated that alterations in chromatin-based epigenetic regulation of gene expression are linked to cognitive dysfunctions in the ageing or neurodegenerating brain as well as to cognitive dysfunctions resulting from chronic stress exposure. This review summarizes the results of studies that unraveled a role of histone modifying enzymes and histone modifications in normal and impaired learning and memory, and in the disruption of executive cognitive task performance. It emphasizes the different roles of specific class I histone deacetylases (HDACs) in cognitive processes governed by the hippocampus and prefrontal cortex and discusses the potential therapeutic implications of targeting them to hold the progression of disease-related cognitive dysfunctions. PMID- 29017915 TI - The neurobiology of body dysmorphic disorder: A systematic review and theoretical model. AB - There has been an increase in neuroimaging research in body dysmorphic disorder (BDD), yet little is known about the underlying neurobiological basis of the disorder. We aimed to provide a systematic overview of the literature on the neurobiology of BDD. Two reviewers undertook a search of three electronic research databases: PubMed, PsycINFO, and Google Scholar. The search consisted of synonyms commonly associated with BDD and methods to evaluate brain structure, function, and network organisation. Out of an initial yield of 175 articles, 19 fulfilled inclusion criteria and were reviewed. We identified differences in brain activity, structure, and connectivity in BDD participants in frontostriatal, limbic, and visual system regions when compared to healthy control and other clinical groups. We put forth a neurobiological model of BDD pathophysiology that involves wide-spread disorganisation in neural networks involved in cognitive control and the interpretation of visual and emotional information. This review considers how this model might aid in the development of future research and understanding of BDD. PMID- 29017916 TI - Conflict detection and resolution rely on a combination of common and distinct cognitive control networks. AB - Cognitive control can be activated by stimulus-stimulus (S-S) and stimulus response (S-R) conflicts. However, whether cognitive control is domain-general or domain-specific remains unclear. To deepen the understanding of the functional organization of cognitive control networks, we conducted activation likelihood estimation (ALE) from 111 neuroimaging studies to examine brain activation in conflict-related tasks. We observed that fronto-parietal and cingulo-opercular networks were commonly engaged by S-S and S-R conflicts, showing a domain-general pattern. In addition, S-S conflicts specifically activated distinct brain regions to a greater degree. These regions were implicated in the processing of the semantic-relevant attribute, including the inferior frontal cortex (IFC), superior parietal cortex (SPC), superior occipital cortex (SOC), and right anterior cingulate cortex (ACC). By contrast, S-R conflicts specifically activated the left thalamus, middle frontal cortex (MFC), and right SPC, which were associated with detecting response conflict and orienting spatial attention. These findings suggest that conflict detection and resolution involve a combination of domain-general and domain-specific cognitive control mechanisms. PMID- 29017917 TI - fNIRS response during walking - Artefact or cortical activity? A systematic review. AB - This systematic review aims to (i) evaluate functional near infrared spectroscopy (fNIRS) walking study design in young adults, older adults and people with Parkinson's disease (PD); (ii) examine signal processing techniques to reduce artefacts and physiological noise in fNIRS data; and (iii) provide evidence-based recommendations for fNIRS walking study design and signal analysis techniques. An electronic search was undertaken. The search request detailed the measurement technique, cohort and walking task. Thirty-one of an initial yield of 73 studies satisfied the criteria. Protocols and methods for removing artefacts and noise varied. Differences in fNIRS signals between studies were found in rest vs. walking, speed of walking, usual vs. complex walking and easy vs. difficult tasks. In conclusion, there are considerable technical and methodological challenges in conducting fNIRS studies during walking which can introduce inconsistencies in study findings. We provide recommendations for the construction of robust methodologies and suggest signal processing techniques implementing a theoretical framework accounting for the physiology of haemodynamic responses. PMID- 29017918 TI - Comparative analysis of methicillin-sensitive and resistant Staphylococcus aureus exposed to emodin based on proteomic profiling. AB - Emodin has a strong antibacterial activity, including methicillin-resistant Staphylococcus aureus (MRSA). However, the mechanism by which emodin induces growth inhibition against MRSA remains unclear. In this study, the isobaric tags for relative and absolute quantitation (iTRAQ) proteomics approach was used to investigate the modes of action of emodin on a MRSA isolate and methicillin sensitive S. aureus ATCC29213(MSSA). Proteomic analysis showed that expression levels of 145 and 122 proteins were changed significantly in MRSA and MSSA, respectively, after emodin treatment. Comparative analysis of the functions of differentially expressed proteins between the two strains was performed via bioinformatics tools blast2go and STRING database. Proteins related to pyruvate pathway imbalance induction, protein synthesis inhibition, and DNA synthesis suppression were found in both methicillin-sensitive and resistant strains. Moreover, Interference proteins related to membrane damage mechanism were also observed in MRSA. Our findings indicate that emodin is a potential antibacterial agent targeting MRSA via multiple mechanisms. PMID- 29017919 TI - Whole-cell biopanning with a synthetic phage display library of nanobodies enabled the recovery of follicle-stimulating hormone receptor inhibitors. AB - Antibodies are essential reagents that are increasingly used in diagnostics and therapy. Their specificity and capacity to recognize their native antigen are critical characteristics for their in vivo application. Follicle-stimulating hormone receptor is a GPCR protein regulating ovarian follicular maturation and spermatogenesis. Recently, its potentiality as a cancer biomarker has been demonstrated but no antibody suitable for in vivo tumor targeting and treatment has been characterized so far. In this paper we describe the first successful attempt to recover recombinant antibodies against the FSHR and that: i) are directly panned from a pre-immune library using whole cells expressing the target receptor at their surface; ii) show inhibitory activity towards the FSH-induced cAMP accumulation; iii) do not share the same epitope with the natural binder FSH; iv) can be produced inexpensively as mono- or bivalent functional molecules in the bacterial cytoplasm. We expect that the proposed biopanning strategy will be profitable to identify useful functional antibodies for further members of the GPCR class. PMID- 29017920 TI - Mycophenolic mofetil, an alternative antiviral and immunomodulator for the highly pathogenic avian influenza H5N1 virus infection. AB - Infection with the highly pathogenic avian influenza H5N1 virus results in a high incidence of mortality in humans. Severe complications from infection are often associated with hypercytokinemia. However, current neuraminidase inhibitors (NAIs) have several limitations including the appearance of oseltamivir-resistant H5N1 virus and the inability to completely ameliorate hyper-immune responses. To overcome these limitations, we evaluated the anti-viral activity of mycophenolic mofetil (MMF) against A/Vietnam/1194/2004 (H5N1) virus infection using MDCK cells and mice. The IC50 of MMF (0.94 MUM) was comparable to that of zanamivir (0.87 MUM) in H5N1 virus-infected MDCK cells based on ELISA. Time-course assays demonstrated that MMF completely inhibited H5N1 viral mRNA replication and protein expression for approximately 8 h after the initiation of treatment. In addition, MMF treatment protected 100% of mice, and lung viral titers were substantially reduced. The anti-viral mechanism of MMF against H5N1 virus infection was further confirmed to depend on the inhibition of cellular inosine monophosphate dehydrogenase (IMPDH) by exogenous guanosine, which inhibits viral mRNA and protein expression. Moreover, IL-1beta, IFN-beta, IL-6, and IP-10 mRNA expression levels were significantly downregulated in MDCK cells with MMF treatment. These results indicated that MMF could represent a novel inhibitor of viral replication and a potent immunomodulator for the treatment of H5N1 virus infection. PMID- 29017921 TI - Supervised machine learning techniques to predict binding affinity. A study for cyclin-dependent kinase 2. AB - Here we report the development of a machine-learning model to predict binding affinity based on the crystallographic structures of protein-ligand complexes. We used an ensemble of crystallographic structures (resolution better than 1.5 A resolution) for which half-maximal inhibitory concentration (IC50) data is available. Polynomial scoring functions were built using as explanatory variables the energy terms present in the MolDock and PLANTS scoring functions. Prediction performance was tested and the supervised machine learning models showed improvement in the prediction power, when compared with PLANTS and MolDock scoring functions. In addition, the machine-learning model was applied to predict binding affinity of CDK2, which showed a better performance when compared with AutoDock4, AutoDock Vina, MolDock, and PLANTS scores. PMID- 29017922 TI - Building kit for metal cation binding sites in proteins. AB - Starting with conformations of calcium-binding sites in parvalbumin and integrin (representative structures of EF-hand and calcium blade zones, respectively) we introduce four new different local Ca2+-recognition units in proteins: a one residue unit type I (ORI); a three-residue unit type I (TRI); a one-residue unit type II (ORII) and a three-residue unit type II (TRII). Based on the amount and nature of variable atoms, the type I and II units theoretically can have four and twelve variants, respectively. Analysis of known "Ca2+-bound functional niches" in proteins revealed presence of almost all possible variants of Ca2+-recognition units in actual structures. Parvalbumin, integrin alpha-IIb and sixteen other proteins with different Ca2+-bound functional niches contain various consecutively joined combinations of OR(I/II) and TR(I/II) units. Such a OR(I/II)+TR(I/II) joint unit forms a tripeptide, which uses three main-chain atoms for metal binding: nitrogenn (Donor), oxygenn (Acceptor) and nitrogenn+2 (Donor). Thus, taken together, the described ORI, TRI, ORII and TRII units can serve as elementary blocks to construct more complex calcium recognizing substructures in a variety of calcium binding sites of unrelated proteins. PMID- 29017923 TI - Lysophosphatidylserine suppresses IL-2 production in CD4 T cells through LPS3/GPR174. AB - Lysophosphatidylserine (LysoPS) has been shown to have lipid mediator-like actions to induce mast cell degranulation and suppress T lymphocyte proliferation. Recently, three G protein-coupled receptors (GPCRs), LPS1/GPR34, LPS2/P2Y10, and LPS3/GPR174, were found to react specifically with LysoPS, raising the possibility that LysoPS exerts its roles through these receptors. In this study, we show that LPS3 is expressed in various T cell subtypes and is involved in suppression of Interleukin-2 (IL-2) production in CD4 T cells. We found that LysoPS suppressed the IL-2 production from activated T cells at the mRNA and protein levels. In addition, LysoPS did not have such an effect on the splenocytes and CD4 T cells isolated from LPS3-deficient mice. In LPS3-deficient splenocytes and CD4 T cells, anti-CD3/anti-CD28-triggered IL-2 production is somewhat increased. Interestingly, LysoPS with various fatty acids was up regulated upon T cell activation. The present study raised the possibility that LysoPS exerts its immunosuppressive roles by down-regulating IL-2 production through a LysoPS-LPS3 axis in T cells. PMID- 29017924 TI - LncRNA CPS1-IT1 suppresses EMT and metastasis of colorectal cancer by inhibiting hypoxia-induced autophagy through inactivation of HIF-1alpha. AB - OBJECTIVE: Hypoxia is a common phenomenon in solid tumor microenvironment. Thereby, the aim of this study was to investigate the molecular mechanisms of tumor metastasis and epithelial-mesenchymal transition (EMT) regulated by lncRNA CPS1 intronic transcript 1 (CPS1-IT1) under hypoxia in CRC. METHODS: Expression of lncRNA CPS1-IT1, hypoxia-inducible factor-1 alpha (HIF-1alpha) and autophagy related protein (LC3) were initially assessed in human CRC tissues and in a series of CRC cell lines. The relationship of CPS1-IT1, HIF-1alpha and autophagy were analyzed in CRC were performed through in vitro and in vivo functional assays. RESULTS: Expression of CPS1-IT1 were significantly reduced, while HIF 1alpha and LC3-II were increased in CRC tissues and cell lines. Then, in vitro assays revealed that CPS1-IT1 suppresses EMT and autophagy by inhibiting the activation of HIF-1alpha in CRC. An in vivo animal model also demonstrated the tumor suppressor mechanism of CPS1- IT1. CONCLUSION: In this study, we found that hypoxia induce autophagy, and inhibition of autophagy could suppress tumor metastasis and EMT in CRC. Additionally, lncRNA CPS1-IT might suppresses metastasis and EMT by inhibiting hypoxia-induced autophagy through inactivation of HIF-1alpha in CRC. PMID- 29017925 TI - Evolution of catalytic microenvironment governs substrate and product diversity in trichodiene synthase and other terpene fold enzymes. AB - Trichodiene synthase, a terpene fold enzyme catalyzes the first reaction of trichodermin biosynthesis that is an economically important secondary metabolite. Sequence search analysis revealed that the proteins containing terpene fold are present in bacteria, fungi and plants. Terpene fold protein from Selaginella moellendorffii, a lycophyte, appeared at the interface of the microbes and plants in the evolutionary scale. Amino acid residues present around the catalytic pocket determines the size of the substrate as well as product molecules. It has been observed that the overall molecular evolution of the catalytic pockets dictates the choice of substrates/products of the proteins. It was further observed that N-terminus of multi-domain terpene fold proteins may assist in the interactions with the pyrophosphate part of the substrates. The phylogenetic analysis of these proteins further revealed that the enzymes are clustered into groups based on the domains present additional to the catalytic domains. We have also observed inter-domain 'puckering forceps' type motions in the multi-domains using normal mode analysis which were further correlated with their functions. The evolutionary clustering of these proteins was also influenced by the presence/absence of cofactor interacting motifs. These results may be used to modify/enhance the functions of these enzymes using protein engineering methods. PMID- 29017926 TI - Autonomic nervous system and pancreatic islet blood flow. AB - Vascularization and innervation of the islet of Langerhans are highly interconnected and are critical for intercellular and intertissular communication. They are both involved in the control of islet blood flow which has been shown to have an important role in the control of endocine secretion. Both parameters are disturbed during the course of metabolic pathologies and particularly diabetes. A better understanding of these mechanisms has and will greatly benefit from the rapidly-emerging technologies particularly in vivo imaging enabling to study both anatomy and functions of the islet. PMID- 29017927 TI - Eleclazine exhibits enhanced selectivity for long QT syndrome type 3-associated late Na+ current. AB - BACKGROUND: Eleclazine (GS-6615) is a sodium channel blocker designed to improve the selectivity for cardiac late Na+ current (INa) over peak INa. OBJECTIVES: The goals of this study were to investigate the inhibition of late INa by eleclazine using a sample of long QT syndrome type 3 (LQT3) and overlap LQT3/Brugada syndrome mutant channels; to compare the apparent binding rates for eleclazine with those for other class 1 antiarrhythmic agents; and to investigate the binding site. METHODS: Wild-type human cardiac voltage-gated sodium channel (hNaV1.5) and 21 previously reported variants were studied using patch clamp recordings from a heterologous expression system. RESULTS: Eleclazine inhibited anemone toxin II-enhanced late INa from wild-type hNaV1.5 with a drug concentration that causes 50% block of 0.62 +/- 0.12 MUM (84-fold selectivity over peak INa). The drug concentration that causes 50% block of eleclazine to inhibit the enhanced late INa from LQT3 mutant channels ranged from 0.33 to 1.7 MUM. At predicted therapeutic concentrations, eleclazine and ranolazine inhibited peak INa to a similar degree as assessed with 4 overlap LQT3/Brugada syndrome mutations. Eleclazine was found to interact with hNaV1.5 significantly faster than ranolazine and 6 other class 1 antiarrhythmic agents. Engineered mutations (F1760A/Y1767A) located within the local anesthetic binding site decreased the inhibition of late INa and peak INa by eleclazine. CONCLUSION: At predicted therapeutic concentrations, eleclazine elicits potent inhibition of late INa across a cohort of NaV1.5 mutant channels. These properties are consistent with a class 1b antiarrhythmic agent that associates with unusually rapid binding/unbinding rates. PMID- 29017928 TI - Implantable cardioverter-defibrillator-computed respiratory disturbance index accurately identifies severe sleep apnea: The DASAP-HF study. AB - BACKGROUND: Sleep apnea (SA) is a relevant issue in the management of patients with heart failure for risk stratification and for implementing treatment strategies. OBJECTIVE: The purpose of this study was to evaluate in patients with implantable cardioverter-defibrillators (ICDs) the performance of the respiratory disturbance index (RDI) computed by the ApneaScan algorithm (Boston Scientific Inc., Natick, MA) as a discriminator of severe SA. METHODS: ICD-indicated patients with left ventricular ejection fraction <=35% were enrolled. One month after implantation, patients underwent a polysomnographic study. We evaluated the accuracy of the RDI for the prediction of severe SA (apnea-hypopnea index [AHI] >=30 episodes/h) and the agreement between RDI and AHI during the sleep study night. RESULTS: Two hundred sixty-five patients were enrolled to obtain the required sample of 173 patients with AHI and RDI data for analysis. The mean AHI was 21 +/- 15 episodes/h and severe SA was diagnosed in 38 patients (22%), while the mean RDI was 33 +/- 13 episodes/h. On the basis of the receiver operating characteristic curve analysis of RDI values, the area under the curve was 0.77 (95% confidence interval [CI] 0.70-0.83; P < .001). At an RDI value of 31 episodes/h, severe SA was detected with 87% (95% CI 72%-96%) sensitivity and 56% (95% CI 48%-66%) specificity. RDI closely correlated with AHI recorded during the same night (r = 0.74; 95% CI 0.57-0.84; P < .001), and the Bland-Altman agreement analysis revealed a bias of 11 episodes/h, with limits of agreement being -10 to 32 episodes/h. CONCLUSION: The RDI accurately identified severe SA and demonstrated good agreement with AHI. Therefore, it may serve as an efficient tool for screening patients at risk of SA. PMID- 29017929 TI - Inappropriate sinus tachycardia-symptom and heart rate reduction with ivabradine: A pooled analysis of prospective studies. AB - BACKGROUND: Inappropriate sinus tachycardia (IST) is debilitating despite available treatment. Off-label use of ivabradine for IST prompted this systematic analysis of existing data quality and sample size estimates for adequately powered studies. OBJECTIVE: To determine clinical efficacy of ivabradine in IST from pooled prospective studies. METHODS: Analysis included ivabradine studies for IST participants without structural heart disease and with follow-up of >=2 weeks. Heart rate and symptom reduction with ivabradine were estimated based on results of subjective change in symptoms assessed by various data instruments used in each study. Studies were assessed for quality using validated checklists. Sample sizes were calculated based on the magnitude of symptom reduction encountered after treatment with ivabradine. RESULTS: Nine studies met criteria, culminating in 145 patients pooled. Most patients were women (>=70%). Studies were small and not adequately powered, and all reported a decrease in maximum or mean resting heart rate or both, with complete or considerable amelioration of symptoms with ivabradine. Most studies had moderate quality with excellent consistency of study quality and narrow limits of agreement between the quality checklists. Sample size estimates for adequately powered studies with various placebo effects and comparisons with beta-blockade are reported. CONCLUSIONS: Ivabradine effectively reduces heart rate and symptoms in IST, but no study was adequately powered to account for the expected placebo effect on symptoms. A multicenter, randomized, placebo-controlled, active, comparative study with a beta-blocker is needed for confirmation. This is especially relevant given the ivabradine's potential teratogenic effect, as many IST patients are females of childbearing potential. PMID- 29017930 TI - Cardiac magnetic resonance imaging using wideband sequences in patients with nonconditional cardiac implanted electronic devices. AB - BACKGROUND: Magnetic resonance imaging (MRI) has been performed safely in patients without MRI-conditional cardiac implantable electronic devices (CIEDs), but experience specifically with cardiac magnetic resonance imaging (CMR) is limited in this patient population. OBJECTIVE: Evaluate the safety of CMR in non MRI-conditional CIEDs and the interpretability of images using wideband sequences. METHODS: We performed 114 consecutive CMR studies in 111 patients (mean age 59 +/- 14 years, with 12 pacemakers, 73 implantable cardioverter defibrillators, 29 biventricular defibrillators) using a wideband pulse sequence for late gadolinium enhancement (LGE) imaging. A standardized protocol for device management and patient monitoring was followed. Patients were evaluated for major clinical adverse events and device parameter changes immediately after CMR and at clinical follow-up. RESULTS: In total, 111 CMR studies were completed successfully. There were no patient deaths, new arrhythmias, immediate generator or lead failures, electrical resets, or pacing capture failures in dependent patients. Right atrial, right ventricular, and left ventricular lead impedances were significantly lower post CMR, with median differences -7 Omega (interquartile range [IQR] -20 to 0 Omega; P < .0001), 0 Omega (IQR -19 to 0 Omega; P = .0001), and -10 Omega (IQR -30 to 0 Omega; P = .023), respectively. These changes persisted through the follow-up period, with median differences 18.5 Omega (IQR -41 to -66 Omega; P = .007), -19 Omega (IQR -44 to -7 Omega; P = .006), and -30 Omega (IQR -130 to 0 Omega; P = .003), respectively. Ninety-seven studies (87%) had no artifact limiting interpretation. CONCLUSIONS: CMR can be performed safely in non-MRI-conditional CIEDs using a standardized protocol. Use of a wideband pulse sequence for LGE imaging yields a high rate of studies unaffected by artifact. PMID- 29017932 TI - Tanshinone I prevents atorvastatin-induced cerebral hemorrhage in zebrafish and stabilizes endothelial cell-cell adhesion by inhibiting VE-cadherin internalization and actin-myosin contractility. AB - Defects in vascular integrity in cerebrovasculature lead to serious pathologies including hemorrhagic stroke. The stability of cell adhesion junctions and actin myosin contractile machinery are two major determinants for the integrity of endothelial monolayer. Here we have evaluated the protective effects of tanshinone I (Tan I), a lipophilic compound presents in Salvia miltiorrhiza, against atorvastatin-induced cerebral hemorrhage in zebrafish in vivo, and further dissected the molecular mechanisms in HUVECs. We demonstrated that Tan I protected endothelial integrity by stabilizing cell-cell adhesion junctions via the inhibition of Src-mediated VE-cadherin internalization and subsequent junction-linked actin cytoskeleton depolymerization. In addition, Tan I inhibited ROCK-associated endothelial contractile machinery by dephosphorylating cofilin and MYPT1. These findings identified Tan I as an endothelial stabilizing agent and suggested Tan I as a potential treatment for vascular leakage in hemorrhagic stroke. PMID- 29017933 TI - Ten-year review of Clostridium difficile infection in acute care hospitals in the USA, 2005-2014. AB - Clostridium difficile infection (CDI) is a major health concern for acute care hospitals because of the increase in the number and severity of cases. Using the Nationwide Inpatient Sample database, a 10-year review was performed on the trends in incidence, mortality, and hospital charges for CDI patients in acute care hospitals during 2005-2014. The review found increased CDI incidence and hospital charges, but decreased mortality during the 10-year study period. PMID- 29017931 TI - Acute nicotine disrupts consolidation of contextual fear extinction and alters long-term memory-associated hippocampal kinase activity. AB - Previous research has shown that acute nicotine, an agonist of nAChRs, impaired fear extinction. However, the effects of acute nicotine on consolidation of contextual fear extinction memories and associated cell signaling cascades are unknown. Therefore, we examined the effects of acute nicotine injections before (pre-extinction) and after (post-extinction) contextual fear extinction on behavior and the phosphorylation of dorsal and ventral hippocampal ERK1/2 and JNK1 and protein levels on the 1st and 3rd day of extinction. Our results showed that acute nicotine administered prior to extinction sessions downregulated the phosphorylated forms of ERK1/2 in the ventral hippocampus, but not dorsal hippocampus, and JNK1 in both dorsal and ventral hippocampus on the 3rd extinction day. These effects were absent on the 1st day of extinction. We also showed that acute nicotine administered immediately and 30 min, but not 6 h, following extinction impaired contextual fear extinction suggesting that acute nicotine disrupts consolidation of contextual fear extinction memories. Finally, acute nicotine injections immediately after extinction sessions upregulated the phosphorylated forms of ERK1/2 in the ventral hippocampus, but did not affect JNK1. These results show that acute nicotine impairs contextual fear extinction potentially by altering molecular processes responsible for the consolidation of extinction memories. PMID- 29017934 TI - Validation of a national hand hygiene proxy measure in NHS Scotland. AB - The Scottish national hand hygiene proxy measure uses the volume of alcohol-based hand rub (ABHR) purchased by NHS Scotland boards as an indicator of the number of hand hygiene moments being performed per patient-bed-day. The proxy measure calculation is based on the assumption that 3 mL of ABHR is used per hand hygiene moment. This study aimed to validate the volume of ABHR being used per hand hygiene moment. It found that the median volume of ABHR being used in practice is approximately 1 mL per hand hygiene moment, and that using this validated volume in the calculation substantially increases the proxy measure of hand hygiene compliance. PMID- 29017935 TI - Physiological implications of DHEAS-induced non-classical steroid hormone signaling. AB - In the spermatogenic cell line GC-2, dehydroepiandrosterone sulfate (DHEAS), activates the Src/Ras/c-Raf/Erk1/2/CREB(ATF-1) signaling cascade. Since DHEAS is present in the gonads, and since spermatogenesis and maturation of spermatogonia to haploid spermatozoa requires activation of Erk1/2, the triggering of these signaling events by DHEAS might have physiological relevance. In the Sertoli cell line TM4, DHEAS-induces activation of Erk1/2, CREB, and ATF-1, stimulates expression of claudin-3 and claudin-5 and augments transepithelial resistance, indicating the formation of tight junctions between adjacent Sertoli cells. Thus, by influencing the formation and dynamics of tight junctions at the blood-testis barrier, which protects germ cells from cells of the immune system, DHEAS might play a crucial role in the regulation and maintenance of male fertility. In bEnd.3 brain-derived endothelial cells, DHEAS stimulates the expression of zonula occludens-1 and claudin-3 and promotes tight junction formation between neighboring cells, which at the blood-brain barrier protects the brain from harmful factors and cells. If DHEAS supports the integrity of the blood-brain barrier also in vivo, the current findings might lead to new strategies for the prevention or treatment of neurological disorders associated with barrier defects. PMID- 29017936 TI - Transporter for sulfated steroid hormones in the testis - expression pattern, biological significance and implications for fertility in men and rodents. AB - In various tissues, steroid hormones may be sulfated, glucuronidated or otherwise modified. For a long time, these hydrophilic molecules have been considered to be merely inactive metabolites for excretion via bile or urine. Nevertheless, different organs such as the placenta and breast tissue produce large amounts of sulfated steroids. After the discovery of the enzyme steroid sulfatase, which is able to re-activate sulfated steroids, these precursor molecules entered the focus of interest again as a local supply for steroid hormone synthesis with a prolonged half-life compared to their unconjugated counterparts. The first descriptions of this so-called sulfatase pathway in the placenta and breast tissue (with special regards to hormone-dependent breast cancer) were quickly followed by studies of steroid sulfate production and function in the testis. These hydrophilic molecules may not permeate the cell membrane by diffusion in the way that unbound steroids can, but need to be transported through the plasma membrane by transport systems. In the testis, a functional sulfatase pathway requires the expression of specific uptake carrier and efflux transporters in testicular cells, i.e. Sertoli, Leydig and germ cells. Main focus has to be placed on Sertoli cells, as these cells build up the blood-testis barrier. In this review, an overview of carrier expression pattern in the human as well as rodent testis is provided with special interest towards implications on fertility. PMID- 29017938 TI - WSSV-responsive gene expression under the influence of PmVRP15 suppression. AB - The viral responsive protein 15 from black tiger shrimp Penaeus monodon (PmVRP15), is highly up-regulated and produced in the hemocytes of shrimp with white spot syndrome virus (WSSV) infection. To investigate the differential expression of genes from P. monodon hemocytes that are involved in WSSV infection under the influence of PmVRP15 expression, suppression subtractive hybridization (SSH) of PmVRP15-silenced shrimp infected with WSSV was performed. The 189 cDNA clones of the forward library were generated by subtracting the cDNAs from WSSV infected and PmVRP15 knockdown shrimp with cDNAs from WSSV-infected and GFP knockdown shrimp. For the opposite subtraction, the 176 cDNA clones in the reverse library was an alternative set of genes in WSSV-infected shrimp hemocytes in the presence of PmVRP15 expression. The abundant genes in forward SSH library had a defense/homeostasis of 26%, energy/metabolism of 23% and in the reverse SSH library a hypothetical protein with unknown function was found (30%). The differential expressed immune-related genes from each library were selected for expression analysis using qRT-PCR. All selected genes from the forward library showed high up-regulation in the WSSV-challenged PmVRP15 knockdown group as expected. Interestingly, PmHHAP, a hemocyte homeostasis associated protein, and granulin-like protein, a conserved growth factor, are extremely up-regulated in the absence of PmVRP15 expression in WSSV-infected shrimp. Only transcript level of transglutaminase II, that functions in regulating hematopoietic tissue differentiation and inhibits mature hemocyte production in shrimp, was obviously down-regulated as observed from SSH results. Taken together, our results suggest that PmVRP15 might have a function relevant to hemocyte homeostasis during WSSV infection. PMID- 29017937 TI - Combined treatment of Biomphalaria glabrata infected by Schistosoma mansoni with oxamniquine and praziquantel: Reproductive histological and metabolic aspects. PMID- 29017939 TI - Identification of a novel toll gene (Shtoll3) from the freshwater crab Sinopotamon henanense and its expression pattern changes in response to cadmium followed by Aeromonas hydrophila infection. AB - Toll signaling is essential for expression of immune genes which are important for defense against bacterial, fungal and viral infections in invertebrates. Although several toll genes have been identified in the crustaceans, none of them has been investigated in freshwater crab Sinopotamon henanense. Moreover, the effect of cadmium (Cd) on toll gene expression has never been examined on the freshwater crabs which live in the sediments and are prone to heavy metal bioaccumulation. Our transcriptomic analysis of hepatopancreas tissue reveals that toll3 gene expression has been decreased when treated with Cd. In this study, we cloned one toll gene (hereby designated Shtoll3) from the crab. The full-length cDNA of Shtoll3 was 4488 bp, with an ORF of 3693 bp encoding a putative protein of 1230 amino acids, a 5'-untranslated region of 414 bp and a 3' untranslated region of 781 bp. Phylogenetic analysis showed that ShToll3 was clustered into the group of DmToll8. The tissue distribution results showed that Shtoll3 was expressed widely in different tissues, with the highest in gills, and the lowest in hemocytes. Shtoll3 expression was down-regulated only in midguts after Aeromonas hydrophila infection. With Cd presence, Shtoll3 expression in response to A. hydrophila were up-regulated in midguts and gills, which was further confirmed by western blotting analysis. Moreover, the mRNA level of two antimicrobial peptides (AMPs) crustin and c-lys, which possibly responded to Cd and A. hydrophila stimulation through Shtoll3, were analysised. Thus, we conclude that Cd changes the susceptibility of Shtoll3 to A. hydrophila infection in gills and midguts. This suggest that Shtoll3 may contribute to the innate immune defense of S. henanense to A. hydrophila and Cd can modify the immune function in epithelium. PMID- 29017940 TI - Single-walled carbon nanotubes as delivery vehicles enhance the immunoprotective effect of a DNA vaccine against spring viremia of carp virus in common carp. AB - Spring viremia of carp virus (SVCV) is highly contagious and pathogenic to cyprinid fish, causing enormous economic losses in aquaculture. Efficient and economic prophylactic measure against is the most pressing desired for the common carp farming industry. In this research, single-walled carbon nanotubes (SWCNTs) as a candidate DNA vaccine carrier was administrated via bath (1, 5, 10, 20, 40 mg L-1) or injection (1, 4, 8, 12, 20 MUg) in common carp juvenile, and the different immune treatments to induce immunoprotective effect was analyzed. The results showed that higher levels of transcription and expression of G gene could be detected in muscle, spleen and kidney tissues via bath administration or intramuscular injection in SWCNTs-pEGFP-G treatment groups compared with naked pEGFP-G treatment groups. Meanwhile, complement activity, superoxide dismutase activity, alkaline phosphatase activity, immune-related genes (especially the TNF alpha) and antibody levels were significantly enhanced in fish immunized with DNA vaccine combined with SWCNTs. The relative percentage survival were significantly enhanced in fish bathed with SWCNTs-pEGFP-G vaccine and the relative percentage survival reached to 57.5% in SWCNTs-pEGFP-G group than that of naked pEGFP-G (40.0%) at the highest vaccine dose (40 mg L-1) after 22 days of post infection, and fish in bath immunization group at a concentration of 40 mg L-1 could reach the similar relative percentage survival in injection group at a dose of 12 MUg. This study suggest that ammonium-functionalized SWCNTs is the promising carrier for DNA vaccine and might be used to vaccinate large-scale juvenile fish by bath administration approach in aquaculture. PMID- 29017941 TI - Novel IFNgamma homologue identified in Nile tilapia (Oreochromis niloticus) links with immune response in gills under different stimuli. AB - Interferon gamma (IFN-gamma) has important roles in both innate and adaptive immune responses. This cytokine plays a very important role in defining Th1 immune response in all vertebrates. In the present study, we identified and isolated for the first time the gene coding for Nile tilapia (Oreochromis niloticus) IFNgamma from spleen lymphocytes. The isolated tilapia IFNgamma has between 24 and 62% of amino acid identity as compared to reported sequences for other teleost fishes. It has close phylogenetic relationships with IFNgamma molecules belonging to the group of Perciforms and presents the typical structural characteristics of gamma interferon molecules. The tissue expression analysis showed that IFNgamma is expressed constitutively in head kidney, skin, intestine, muscle and brain. Its expression was not detected in gills by conventional RT-PCR. However, under conditions of stimulation with Poly I:C and LPS, IFNgamma expression was up-regulated in gills after 24 h post-stimulation. IFNgamma expression was also induced in gills 24 h after Edwardsiella tarda infection suggesting its important role in immunity against intracellular bacteria. The recombinant protein produced in Escherichia coli induced Mx gene transcription in head kidney primary culture cells. These results are the first steps to characterize the role of tilapia IFNgamma in the defense against pathogens in tilapia. Furthermore, the isolation of this molecule provides a new tool to characterize the cellular immune response to various stimuli in this organism. PMID- 29017943 TI - Efficacy and safety of a non-mineral oil adjuvanted injectable vaccine for the protection of Atlantic salmon (Salmo salar L.) against Flavobacterium psychrophilum. AB - Flavobacterium psychrophilum is the causative agent of Rainbow Trout Fry Syndrome which has had a major impact on global salmonid aquaculture. Recent outbreaks in Atlantic salmon in Scotland and Chile have added to the need for a vaccine to protect both salmon and trout. At present no licensed vaccines are available in Europe, leaving antibiotics as the only course of action to contain disease outbreaks. Outbreaks generally occur in fry at temperatures between 10 and 15 degrees C. Recently outbreaks in larger fish have given added impetus to the development of a vaccine which can provide long term protection from this highly heterogeneous pathogen. Most fish injectable vaccines are formulated with oil emulsion adjuvants to induce strong and long lasting immunity, but which are known to cause side effects. Alternative adjuvants are currently sought to minimise these adverse effects. The current study was performed to assess the efficacy of a polyvalent, whole cell vaccine containing formalin-inactivated F. psychrophilum to induce protective immunity in Atlantic salmon. The vaccine was formulated with an adjuvant containing squalene and aluminium hydroxide, and was compared to a vaccine formulated with a traditional oil adjuvant, Montanide ISA 760VG, and a non-adjuvanted vaccine. Duplicate groups of salmon (23.5 +/- 6.8 g) were vaccinated with each of the vaccine formulations or phosphate buffered saline by intraperitoneal injection. Fish were challenged by intramuscular injection with F. psychrophilum six weeks post-vaccination to test the efficacy of the vaccines. Cumulative mortality reached 70% in the control salmon, while the groups of salmon that received vaccine had significantly lower mortality than the controls (p = 0.0001), with no significant difference in survival between vaccinated groups. The squalene/alum adjuvant was safe, more readily metabolised by the fish and induced less histopathological changes than the traditional oil adjuvant. PMID- 29017942 TI - As-CATH4 and 5, two vertebrate-derived natural host defense peptides, enhance the immuno-resistance efficiency against bacterial infections in Chinese mitten crab, Eriocheir sinensis. AB - Host defense peptides (HDPs), a class of conserved components of animal innate immune system, possess direct antimicrobial activities against invading pathogens and broadly participate in boosting and modulating host immune responses. Cathelicidins is an important family of HDPs that has been identified exclusively in vertebrates. Considering the relatively conserved innate immune system between invertebrates and vertebrates, it is speculated that HDPs from vertebrates may also possess modulating functions on invertebrate innate immune system. In the present study, two novel cathelicidins (As-CATH4 and 5), which had been identified from the Chinese alligator in our previous study, were employed to investigate their functions as novel peptide immunostimulants in Chinese mitten crab. As-CATH4 and 5 exhibited potent, broad-spectrum, and rapid antimicrobial activities against all the tested aquatic pathogenic bacteria. Unlike traditional antibiotics, they target on bacterial cell membrane, induce membrane permeabilization and cell disruption, and ultimately result in cell death. The antimicrobial effect is far more rapid than traditional antibiotics. Therefore they are unlikely to induce bacteria resistance. After the crabs were administered with As-CATH4 and 5, the activities of lysozyme, acid phosphatase and alkaline phosphatase were significantly enhanced, which indicated that the immune system of crabs could be activated by As-CATH4 and 5. In bacteria challenge test, As-CATH4 and 5 could significantly decrease the bacterial numbers in crabs, and increase the survival rates of crabs in both pre-stimulation and co stimulation groups. All of the results above indicated the great potential of As CATH4 and 5 as novel peptide immunostimulants in the crab aquaculture. PMID- 29017944 TI - Immunological responses and disease resistance of rainbow trout (Oncorhynchus mykiss) juveniles following dietary administration of stinging nettle (Urtica dioica). AB - The present study investigated the effects of dietary supplementation of stinging nettle (Urtica dioica) on growth performance, skin mucus, immune response and disease resistance of rainbow trout (Oncorhynchus mykiss) fed with diets supplemented with U. dioica at 0, 1, 2 and 3%. After 8 weeks of feeding, the addition of U. dioica at 3% level resulted in improved weight gain, specific growth rate and feed conversion ratio significantly when compared to the other groups (P < 0.05). Hematological responses including: hematocrit (Htc), hemoglobin (Hb), lymphocyte and neutrophil populations enhanced significantly in fish fed 3% of stinging nettle when measured after 4 weeks; while, total red blood cells, white blood, Htc, Hb, lymphocyte and neutrophil populations significantly increased after 8 weeks in the same group (P < 0.05). Total serum protein and glucose contents increased significantly in fish fed stinging nettle at 3% when compared to the other groups after 8 weeks; however, triglycerides decreased significantly in the same group on the 4th and 8th week (P < 0.05). Additionally, several immune parameters, namely, IgM, lysozyme, complement components C3 and C4, and respiratory burst of blood leukocytes significantly increased in the 3% fed group on the 4th week; while, after 8 weeks the immune responses enhanced in fish fed 2 and 3% diets (P < 0.05). At the end of the feeding trial, mucus samples obtained from the fish fed stinging nettle supplementation exhibited improved antagonistic activities against several bacterial pathogens (Streptococcus iniae, Yersinia ruckeri, Vibrio anguillarum and Lactococcus garviae), skin mucus enzymes activities (alkaline phosphatase, lysozyme, protease and esterase) and protein levels in 2 and 3% groups with the highest being in case of 3% group when compared to the other groups (P < 0.05). The cumulative mortality of rainbow trout subjected to Y. ruckeri infectious exhibited relatively low mortality levels in all supplemented groups with the lowest being in fish fed 3% stinging nettle. The present findings demonstrated that dietary administration of U. dioica enhanced growth and stimulated fish immunity; thus, enabling the fish to be more resistant against bacterial infections. PMID- 29017945 TI - Healing and mucosal immunity in the skin of experimentally wounded gilthead seabream (Sparus aurata L). AB - Skin lesions are very common in fisheries, increasing the risk of pathogens entering through the wounded skin of the fish. In the present assay, the progression of wound healing was studied over a 7 day period in gilthead seabream (Sparus aurata L.) after making experimental wounds in two different locations: above (group A) or below (group B) the lateral line. Macroscopic observation confirmed faster wound healing of the wounds of fish from group B. Furthermore, several immune-related components were studied in the skin mucus of wounded fish to ascertain whether wounding altered the mucus composition compared with the values obtained from non-wounded fish (group C, control). Significant variations were detected depending on both the site of the wound and the studied parameter. At the same time, the gene expression profile of several immune-relevant genes, including pro-inflammatory (il1b,il6, tnfa), anti-inflamamtory (tgfb, il10), immunoglobulins (ighm, ight), involved in oxidative stress (sod, cat) and in skin regeneration (krt1and grhl1) were studied in the three groups of fish (A, B and C). The results throw further light on the complex process of skin wound healing in fish, since substantial changes in the skin mucus and in the skin gene expression originated by the presence of wounds were observed. This work underline some important differences depending on the place of the fish body where the wound is located. Of particular note was the fact that such changes depended on the site of the wound. PMID- 29017946 TI - Cloning and expression of Malabar grouper (Epinephelus malabaricus) ADAR1 gene in response to immune stimulants and nervous necrosis virus. AB - ADARs are RNA editing catalysts that bind double-stranded RNA and convert adenosine to inosine, a process that can lead to destabilization of dsRNA structures and suppression of mRNA translation. In mammals, ADAR1 genes are involved in various cellular pathways, including interferon (IFN)-mediated response. However, the function of fish ADAR1 remains unclear. We report here the cloning of ADAR1 in Malabar grouper (Epinephelus malabaricus) (MgADAR1) and its response to various immune stimulants. The MgADAR1 cDNA is 5371-bp long, consisting of an open reading frame encoding a putative protein of 1381 amino acids, a 235-nt 5'-terminal untranslated region (UTR), and a 990-nt 3'-UTR. The deduced amino acid sequence exhibits signature features of a chitin synthesis regulation domain, two Z-DNA-binding domains (Z alpha), three dsRNA binding motifs (DSRM) and one tRNA-specific and dsRNA adenosine deaminase domain (ADEAMc). MgADAR1 mRNA expressed ubiquitously in tissues of healthy Malabar grouper, with elevated levels in the brain, gills and eyes. In response to poly (I: C), the MgADAR1 mRNA level was significantly up-regulated in the brain and spleen, but not head kidney. Upon nervous necrosis virus (NNV) infection the level of MgADAR1 increased in the brain, whereas Mx increased in the brain, spleen and head kidney. Induction of MgADAR1 by poly (I: C) and NNV was also observed in vitro. Additionally, the expression of MgADAR1 was upregulated by recombinant grouper IFN in grouper cells. These data indicate an intricate interplay between ADAR1 and NNV infection in grouper as MgADAR1 might be regulated in a tissue-specific manner. PMID- 29017947 TI - Integrated profiling of global metabolomic and transcriptomic responses to viral hemorrhagic septicemia virus infection in olive flounder. AB - Viral hemorrhagic septicemia virus (VHSV) is one of the most serious viral pathogen that infects farmed fish. In this study, we measured the replication of VHSV increased steadily at 9, 24, 72, and 120 h after infection and progression of necrosis was observed at 72 hpi. We performed transcriptomic and metabolomics profiling of kidney tissues collected at each infection time using Illumina HiSeq2000 and ultra-performance liquid chromatography/quadrupole time-of-flight mass spectroscopy to investigate the mechanisms of VHSV infection in the kidneys of olive flounder. A total of 13,862 mRNA molecules and 72 metabolites were selected to identify the mechanisms of infection and they were integrated using KEGG pathway database. Six KEGG metabolic pathways, including carbohydrate metabolism, amino acid metabolism, lipid metabolism, transport and catabolism, metabolism of cofactors and vitamins, and energy metabolism, were significantly suppressed, whereas the immune system was activated by VHSV infection. A decrease in levels of amino acids such as valine, leucine, and isoleucine, as well as in their derivative carnitines, was observed after VHSV infection. In addition, an increase in arachidonic acid level was noted. Integrated analysis of transcriptome and metabolome using KEGG pathway database revealed four types of responses in the kidneys of olive flounder to VHSV infection. Among these, the mechanisms related to the immune system and protein synthesis were activated, whereas ATP synthesis and the antioxidant system activity were suppressed. This is the first study describing the mechanisms of metabolic responses to VHSV infection in olive flounder. The results suggest that the suppression of ATP synthesis and antioxidant systems, such as glutathione and peroxisome signaling, could be the cause of necrosis, whereas the activation of the immune system could result in the inflammation of kidney tissue in VHSV-infected olive flounder. PMID- 29017948 TI - Transcriptome analysis of hepatopancraes of Procambarus clarkii challenged with polyriboinosinic polyribocytidylic acid (poly I:C). AB - Crustacean hepatopancreas regulates metabolic processes, biogenesis and innate immune processes, and the knowledge on its immune genes are crucial to understand antimicrobial mechanisms. In this study, we reported the transcriptomic profile of Procambarus clarkii hepatopancreas after poly I:C administration using high throughput sequencing. Following de novo assembly 56,716 unigene sequences with an average length of 810 bp was obtained. The unigene sequences were annotated to three ontologies including cellular components, biological processes and molecular functions, further 56,716 unigene sequences were mapped to 25 COG categories. A total of 2497 differentially expressed genes (DEGs) were identified following the comparative analysis between poly I:C treated and control group, and then KEGG enrichment analysis were performed to detect immune related pathways. Quantitative real time polymerase chain reaction showed that the selected DEGs significantly up-regulated following poly I:C administration in comparison to control group. The transcriptomic sequence information will improve the knowledge of this economically important crustacean, and will shed light on its antiviral immune mechanisms. PMID- 29017949 TI - Tumor necrosis factor receptor-associated factor 3 from Anodonta woodiana is an important factor in bivalve immune response to pathogen infection. AB - Tumor necrosis factor receptor-associated factor 3 (TRAF3) is a multifunctional adaptor protein in innate and acquired immune system that plays a key role in the regulation of the RIG-I-like receptor (RLR) and Toll-like receptor (TLR) signaling pathway in mammals. However, the immune function of TRAF3 homologs in freshwater mollusks is not well understood. In this study, we identified a bivalve TRAF3 gene (AwTRAF3) from Anodonta woodiana and investigated its potential roles during immune challenges. The present AwTRAF3 encoded a polypeptide of 562 amino acids with predicted molecular mass of 64.5 kDa and PI of 7.9. Similar to other reported TRAF3s, AwTRAF3 contained a RING finger domain, two TRAF domains with zinc finger domains, a coiled coli region and a conserved C terminal meprin and TRAF homology (MATH) domain. Quantitative real-time PCR (qRT PCR) analysis revealed that AwTRAF3 mRNA was broadly expressed in all of the examined tissues, with high expression in hepatopancreas, gill and heart. In addition, immune challenge experiments directly showed that transcript levels of AwTRAF3 in hepatopancreas were significantly regulated upon bacterial (Vibrio alginolyticus and Staphylococcus aureus) and viral (poly (I:C)) challenges, respectively. Moreover, GFP-tagged AwTRAF3 fusion protein was found to be located primarily in the cytoplasm in HEK293T cells. Altogether, these data provided the first experimental demonstration that freshwater mollusks possess a functional TRAF3 that was involved in the innate defense against bacterial and viral infection. PMID- 29017950 TI - The synergistic effects of valproic acid and fluvastatin on apoptosis induction in glioblastoma multiforme cell lines. AB - Glioblastoma multiforme (GBM) is the most common primary central nervous system malignant tumor. It responds poorly to standard therapies, such as surgical resection, radiation therapy and chemotherapy. Many chemotherapeutic drugs are focused on apoptosis induction and radiation sensitivity. Inhibition of histone acetylation via histone deacetylase inhibitor (HDACI) is one such strategy. Statins (or 3-hydroxy-3-methylglutaryl-CoA reductase inhibitors) are classical drugs used to lower cholesterol but also inhibitors of histone deacetylation activity. This study analyzes the combinatory effects of valproic acid (VPA) and fluvastatin on apoptosis induction in GBM8401 cells. The results show that they act synergistically in inducing gamma-H2AX and apoptosis accompanied by higher acetylated histones H3 and H4. Downregulation of p53 occurred by VPA alone and fluvastatin alone, but not at their combined application; upregulation of p21 at the protein level was induced by each of the drugs alone and no further increase occurred at combined application. The drug BEZ235 inhibited phosphorylation of Akt and attenuated the level of gamma-H2AX as well as cleaved PARP (cPARP) induced at combined application of VPA and fluvastatin. Induction of apoptosis within a 48h incubation period was massive when measured as the subG1 peak (97%) and was detected after a 24h incubation at low level when assayed with PE Annexin V. Synergistic apoptosis induction was demonstrated also after 24h incubation by the appearance of cPARP. Partial silencing of p21 reduced cPARP as well as the percentage of apoptotic cells in the subG1 peak. However, partial silencing of p53 had no effect on apoptosis. Such findings offer a better understanding of the mechanism of action of HDACIs in combination with statins that may guide the development of a new combinatory reposition for the treatment of GBM. PMID- 29017951 TI - Identification of CfiA coding genes in Bacteroides fragilis isolates recovered in Argentina. Inconsistencies in CfiA organization and nomenclature. AB - CfiA (CcrA) metallo-beta-lactamase is the main carbapenem resistance mechanism in B. fragilis. From cfiA positive isolates detected in a previous surveillance study, 3 displayed resistance to imipenem while the remaining were susceptible. The aim of this study was to identify the cfiA alleles and to analyze the presence of IS elements in their upstream regions. CfiA-1, CfiA-4, CfiA-13, CfiA 19 and CfiA-22 were detected. IS elements belonging to IS21 family and IS942 group were identified upstream to cfiA in the 3 imipenem resistant isolates. We present an exhaustive analysis of cfiA/CfiA registers in databases, illustrating the inconsistencies in both organization and nomenclature. According to this analysis CfiA family comprises nowadays 15 different CfiA variants coded by 24 cfiA sequences. Curation of CfiA database is mandatory, if not new cfiA admission at GenBank will contribute to make this classification more complex. PMID- 29017952 TI - A biocompatible sodium alginate/povidone iodine film enhances wound healing. AB - In the last few years, there has been an increasing tendency to use natural polymers for the fabrication of dressings for wound and burn management. Among them, alginate, a polysaccharide extracted primarily from marine algae, exhibits attractive properties being non-toxic, hydrophilic and biodegradable. The aim of this study was to characterize the in vitro biocompatibility and the efficacy of a composite polymeric material based on sodium alginate (NaAlg) and povidone iodine (PVPI) complex in a mouse model of wound healing. The developed material combines the excellent wound healing properties of alginates with the bactericidal and fungicidal properties of PVPI, providing a controlled antiseptic release. We demonstrated that the NaAlg/PVPI films are able to reduce the inflammatory response both in human foreskin fibroblasts after lipopolysaccharide (LPS) stimulus and in rodents after wound induction. Furthermore, the NaAlg/PVPI film-treated animals showed a significantly higher wound closure compared to untreated animals at each time point considered. Interestingly, the complete wound closure was achieved within 12 days only in the film-treated group, indicating that the full-thickness wounds healed more rapidly in these animals. The results demonstrate that the NaAlg/PVPI films are biocompatible and possess healing properties that accelerate the wound closure. PMID- 29017953 TI - In vitro and in vivo study of pH-sensitive and colon-targeting P(LE-IA-MEG) hydrogel microspheres used for ulcerative colitis therapy. AB - Hydrocortisone sodium succinate (HSS) is an anti-inflammatory drug, but its application on ulcerative colitis (UC) treatment is limited by its associated side-effects. To solve this problem, a kind of pH-sensitive P(LE-IA-MEG) hydrogel microspheres (HMSs) were prepared as the drug carrier of hydrocortisone sodium succinate (HSS) for the treatment of UC. The P(LE-IA-MEG) HMSs were spherical in shape with good dispersion and the mean particle size was 34.87+/-0.90MUm. HSS was successfully loaded into the P(LE-IA-MEG) HMSs. The in vitro release study of HSS-loaded HMSs (HSS-HMSs) revealed that the HSS-HMSs possessed desirable pH sensitivity, the cumulative release rate was 4.07% and 94.64% in the solution with pH 1.2 and pH 7.4 solution during 12h, respectively. Furthermore, the study on pharmacokinetic, gastrointestinal drug residue and side-effects were conducted to evaluate the in vivo colon-targeting property of the HSS-HMSs. All the results showed that the HSS-HMSs could deliver HSS to the colon as well as reduce its premature absorption in the upper gastrointestinal tract. Finally, the HSS-HMSs showed better ameliorative effects and therapeutic effects on mice with experimental colitis as compared to HSS. In conclusion, the HSS-HMSs had great potential in the treatment of UC. PMID- 29017954 TI - Low level LED photodynamic therapy using curcumin loaded tetraether liposomes. AB - Oncological use of photodynamic therapy is an evolving field in cancer therapeutics. Photosensitisers are prone to accumulation inside healthy tissues causing undesirable effects. To avoid this, we have developed tetraether lipid liposomal formulations containing curcumin which is a naturally occurring anti cancer substance and deemed to be safe towards healthy cells. Upon excitation with light at a specific wavelength, curcumin produces reactive oxygen species (ROS) in presence of oxygen, thereby exhibiting a cytotoxic effect towards the surrounding tissues, giving a total control on the onset of therapy. In our study, we examined two different liposomal formulations wherein curcumin is encapsulated within the hydrophobic milieu with the intent to increase its bioavailability. Hydrodynamic diameter, surface charge, stability, morphology and haemocompatibility of the liposomes were studied. The results confirmed the formation of stable nanometre range liposomal vesicles (200-220 nm) containing curcumin which were haemocompatible with coagulation time less than 50 s and a haemolytic potential below 40%. Increased ROS generation post irradiation (>50% compared to un-irradiated samples) was confirmed using fluorescence spectroscopy. The efficiency and selectivity of the PDT was demonstrated by assessing their viability post irradiation and by qualitative analysis using confocal microscopy showing nuclear perforation induced by PDT. Photo-destructive effects of PDT on the microvasculature were studied in vivo using chick chorioallantoic membrane model (CAM). Considerable phototoxicity could be observed in the irradiated area of the CAM 30 min post irradiation. Phototoxic effects in vitro (in SK-OV-3 and PCS-100-020TM) and in vivo (in chorioallantoic membrane model) in combination with a novel custom manufactured LED irradiating device showed a formulation dependant selective photodynamic effect of the curcumin liposomes. PMID- 29017956 TI - Burden of Pneumonia-Associated Hospitalizations: United States, 2001-2014. AB - BACKGROUND: The epidemiology of pneumonia has likely evolved in recent years, reflecting an aging population, changes in population immunity, and socioeconomic disparities. METHODS: Using the National (Nationwide) Inpatient Sample, estimated numbers and rates of pneumonia-associated hospitalizations for 2001-2014 were calculated. A pneumonia-associated hospitalization was defined as one in which the discharge record listed a principal diagnosis of pneumonia or a secondary diagnosis of pneumonia if the principal diagnosis was respiratory failure or sepsis. RESULTS: There were an estimated 20,361,181 (SE, 95,601) pneumonia associated hospitalizations in the United States during 2001-2014 (average annual age-adjusted pneumonia-associated hospitalization rate of 464.8 per 100,000 population [95% CI, 462.5-467.1]). The average annual age-adjusted pneumonia associated hospitalization rate decreased over the study period (P < .0001). In hospital death occurred in 7.4% (SE, 0.03) of pneumonia-associated hospitalizations. Non-Hispanic American Indian/Alaskan Natives and non-Hispanic blacks had the highest average annual age-adjusted rates of pneumonia-associated hospitalization of all race/ethnicities at 439.2 (95% CI, 415.9-462.5) and 438.6 (95% CI, 432.5-444.7) per 100,000 population, respectively. During 2001-2014, the proportion of pneumonia-associated hospitalizations colisting an immunocompromising condition increased from 18.7% (SE, 0.2) in 2001 to 29.9% (SE, 0.2) in 2014. Total charges for pneumonia-associated hospitalizations in 2014 were over $84 billion. CONCLUSIONS: Pneumonia is a major cause of morbidity and mortality in the United States. Differences in rates and outcomes of pneumonia associated hospitalizations between sociodemographic groups warrant further investigation. The immunocompromised population has emerged as a group experiencing a disproportionate burden of pneumonia-associated hospitalizations. PMID- 29017955 TI - Triggering Receptor Expressed on Myeloid Cells-2 Expression Tracks With M2-Like Macrophage Activity and Disease Severity in COPD. AB - BACKGROUND: Cell and animal models show a key role for Triggering Receptor Expressed on Myeloid Cells (TREM)-2 in chronic airway disease after viral infection, but comparable evidence in humans still needs to be established. METHODS: Lung tissue samples were obtained from lung transplant recipients with Global Initiative for Chronic Obstructive Lung Disease (GOLD) stage IV COPD (n = 16), nontransplantable donor lung tissues (n = 7), and resected lung tissues from patients at risk or with GOLD stage I through IV (n = 55) and were assessed for TREM-2 and TREM-1 messenger RNA (mRNA), protein expression, and other markers of a type 2 immune response. RESULTS: TREM2 (but not TREM1) mRNA levels were increased in GOLD stage IV COPD lung tissues compared with non-COPD lung tissues. TREM2 mRNA was coexpressed with its signaling molecule DAP12 and the macrophage marker CD68 and M2-macrophage markers CD206 and CHIT1. TREM-2 protein was also increased in COPD lung tissues and was localized to CD14+ macrophages by flow cytometry and CD68+ and CCR2+ macrophages by tissue immunostaining. In lung samples from patients at risk and with GOLD stage I through IV COPD, TREM2 but not TREM1 mRNA levels were also increased, and the ratio of TREM2/TREM1 mRNA levels was associated with increases in CHIT1 mRNA and decreases in FEV1 and FEV1/FVC. CONCLUSIONS: TREM-2 expression is increased in lung macrophages in COPD, particularly in comparison with TREM-1. Therefore, TREM-2 levels and the ratio of TREM-2/TREM-1 signifies M2 activation in COPD lung tissues and may help to guide therapeutics directed against the type 2 immune response in patients with this disease. PMID- 29017957 TI - Lifetime Risks, Projected Numbers, and Adverse Outcomes in Asian Patients With Atrial Fibrillation: A Report From the Taiwan Nationwide AF Cohort Study. AB - BACKGROUND: Most data on the clinical epidemiology of atrial fibrillation (AF) come from Western populations, and data for Asians are limited. We investigated the lifetime risk and projected number of AF among Asians. The annual risks of adverse events among patients with AF, time trends, and the risks compared with patients without AF were analyzed. METHODS: Between 2000 and 2011, 289,559 patients aged >= 20 years experienced new-onset AF in Taiwan. The incidence, prevalence, and lifetime risk of AF were calculated. The risk of adverse events among patients with AF were analyzed and compared with that of age- and sex matched patients without AF. RESULTS: The incidence of AF in year 2011 was 1.51 per 1,000 person-years, with a lifetime risk of AF being appropriately 1 in 7 for subjects aged > 20 years. The prevalence of AF is estimated to be 4.01% in 2050. Compared with patients without AF, AF was associated with an increased risk of mortality (adjusted hazard ratio [aHR], 2.61), heart failure (aHR, 3.31), ischemic stroke (aHR, 3.34), dementia (aHR, 1.56), sudden cardiac death (aHR, 1.83), and myocardial infarction (aHR, 1.62); all P < .01. The risks of ischemic stroke, heart failure, and mortality were especially higher compared with patients without AF in the initial period (approximately 6 months) after AF was first diagnosed. CONCLUSIONS: The burden of AF among Asian patients is increasing, with a lifetime risk of AF being 1 in 7. Optimized management of any associated comorbidities should be part of the holistic management approach for AF. PMID- 29017958 TI - Higher Priced Older Pharmaceuticals: How Should We Respond? AB - We and our patients have been aware of the high cost of medications in the United States for decades; however, we are now witnessing a relatively new phenomenon: exponential price increases for some older pharmaceuticals that have been available for years. To assist practitioners in how to respond to the issue of higher priced pharmaceuticals, an interprofessional session was developed and held at CHEST 2016 in Los Angeles. The session proceedings and a few updates are presented here to summarize what pulmonologists; a sarcoidosis expert; a retired executive of a medical society, an executive of a pharmaceutical company and of a pharmacy; and an ethicist advise that we do about the problem. Because the comments presented at the session and in this manuscript represent the opinions of each author, this commentary in essence is a compilation of nine editorials. It does not represent a comprehensive discussion of the field of pricing of drugs. In reflecting upon the answers to the questions posed, and regardless of their sector of health care, all participants stated that they focused on the patient. However, actually providing patient-focused care (ie, the care defined from the patient's perspective) is another matter. To significantly improve patient satisfaction and health-care outcomes, patient-focused care needs to embody the 3 Cs of (1) communication, (2) continuity of care, and (3) concordance of expectations (ie, finding the common ground). Therefore, we discuss how the 3 Cs apply to responses to higher priced pharmaceuticals. PMID- 29017959 TI - 8-Isoprostane is an early biomarker for oxidative stress in chlorine-induced acute lung injury. AB - Inhalation of chlorine (Cl2) may cause oxidative acute lung injury (ALI) characterized by pulmonary edema, pneumonitis, and hyperreactive airways. The aim of the study was to identify possible biomarkers for Cl2-induced ALI. Female BALB/c mice were exposed to Cl2 for 15min using two protocols 1) concentration dependent response (25-200ppm) and 2) time-kinetics (2h-14days post-exposure). Exposure to 50-200ppm Cl2 caused a concentration-dependent inflammatory response with increased expression of IL-1beta, IL-6 and CXCL1/KC in bronchoalveolar lavage fluid 2-6h after exposure which was followed by increased lung permeability and a neutrophilic inflammation 12-24h post-exposure. The early inflammatory cytokine response was associated with a clear but transient increase of 8-isoprostane, a biomarker for oxidative stress, with its maximum at 2h after exposure. An increase of 8-isoprostane could also be detected in serum 2h after exposure to 200ppm Cl2, which was followed by increased levels of IL-6 and CXCL1/KC and signs of increased fibrinogen and PAI-1. Melphalan, a non-oxidizing mustard gas analog, did not increase the 8-isoprostane levels, indicating that 8 isoprostane is induced in airways through direct oxidation by Cl2. We conclude that 8-isoprostane represents an early biomarker for oxidative stress in airways and in the blood circulation following Cl2-exposure. PMID- 29017960 TI - Upper respiratory tract nociceptor stimulation and stress response following acute and repeated Cyfluthrin inhalation in normal and pregnant rats: Physiological rat-specific adaptions can easily be misunderstood as adversities. AB - This paper reviews the results from past regulatory and mechanistic inhalation studies in rats with the type II pyrethroid Cyfluthrin. Apart from many chemical irritants, Cyfluthrin was shown to be a neuroexcitatory agent without any inherent tissue-destructive or irritant property. Thus, any Cyfluthrin-induced neuroexcitatory afferent sensory stimulus from peripheral nociceptors in the upper respiratory tract is likely to be perceived as a transient stimulus triggering annoyance and/or avoidance by both rats and humans. However, while thermolabile rats respond to such stresses reflexively, homeothermic humans appear to respond psychologically. With this focus in mind, past inhalation studies in rats and human volunteers were reevaluated and assessed to identify common denominators to such neuroexcitatory stimuli upon inhalation exposure. This analysis supports the conclusion that the adaptive physiological response occurring in rats secondary to such chemosensory stimuli requires inhalation exposures above the chemosensory threshold. Rats, a species known to undergo adaptively a hibernation-like physiological state upon environmental stresses, experienced reflexively-induced bradypnea, bradycardia, hypothermia, and changes in acid-base status during inhalation exposure. After cessation of the sensory stimulus, rapid recovery occurred. Physiological data of male and female rats from a 4-week repeated inhalation study (exposure 6-h/day, 5-times/week) were used to select concentration for a 10-day developmental inhalation toxicity study in pregnant rats. Maternal hypothermia and hypoventilation were identified as likely cause of fetal and placental growth retardations because of a maternal adaptation-driven reduced feto-placental transfer of oxygen. In summary, maternal reflex-hypothermia, reduced cardiac output and placental perfusion, and disruption of the gestation-related hyperventilation are believed to be the maternally mediated causes for developmental impairments. Thus, inhaled chemosensory substances may appear to be more toxic in rats than they will be in humans because the thermoregulatory response of rats to such stimuli can cause profound physiological adaptions that can easily be misunderstood as adversities in conventional inhalation studies in small rodents. The afferent threshold triggering such outcomes in rodents translate to perceptions of annoyance in humans. Consequently, hazard characterization and human risk assessment need to be focused on the chemosensory threshold rather than endpoints occurring downstream to rodent-specific homeostasis. PMID- 29017961 TI - Protection against Tetanus and Diphtheria in Europe: The impact of age, gender and country of origin based on data from the MARK-AGE Study. AB - Due to the successful implementation of vaccination strategies early-life morbidity and mortality due to infectious disease has been reduced dramatically. Vaccines against tetanus and diphtheria are among the most frequently used vaccines worldwide, but various studies in different European countries have shown that protection against tetanus and particularly against diphtheria is unsatisfactory in adults and older persons. In this study we analyzed tetanus- and diphtheria-specific antibody concentrations in 2100 adults of different age from 6 selected European countries (Austria, Belgium, Germany, Greece, Italy, Poland) in order to investigate differences in the level of protection against tetanus and diphtheria across Europe. Our data reveal that tetanus- and diphtheria-specific antibody concentrations vary greatly between countries, which is also reflected in the percentage of persons with antibody concentrations below the protective level (0.1IU/ml), which ranged from 2 to 31% percent for tetanus and 28-63% for diphtheria. In most countries, tetanus- and diphtheria-specific antibody concentrations decrease with age. This phenomenon is more pronounced in countries with generally low antibody levels, such as Italy, Poland and Greece. Interestingly, tetanus-specific antibody concentrations are generally higher in males than in females, which is probably due to vaccination during their military service or more frequent booster vaccinations after injuries, whereas no gender related differences were found for diphtheria-specific antibodies. In conclusion, our study demonstrates that the European population is not fully protected against tetanus and diphtheria. Measures to improve protection should include a life-long perspective on vaccination, more education to increase awareness of and compliance with vaccination guidelines, and a harmonization of recommendations and incentives across Europe. PMID- 29017962 TI - ACE I/D sequence variants but not MTHFR C677T, is strongly linked to malignant glioma risk and its variant DD genotype may act as a promising predictive biomarker for overall survival of glioma patients. AB - OBJECTIVE: ACE I/D and MTHFR C677T gene polymorphisms can be seen as candidate genes for glioma on the basis of their biological functions and their involvement in different cancers. The aim of this study was to analyze potential association and overall survival between MTHFR C677T and ACE I/D polymorphism in glioma patients in our population. MATERIALS AND METHODS: We tested genotype distribution of 112 glioma patients against 141 cancer-free controls from the same region. Kaplan-Meier survival analysis was performed to evaluate overall survival of patients for both genes. RESULTS: No significant differences were found among MTHFR C677T wild type C and variant genotypes CT/TT with glioma patients. In ACE, the distribution of variant ID and DD was found to be significantly higher in glioma cases as compared to controls (p<0.0001). ACE DD genotypes were highly presented in glioma cases 26.8% versus 10.6% in controls (p<0.0001) and conferred 5-fold risk for predisposition in glioma cases. Per copy D allele frequency was found higher in cases than in controls (0.54 versus 0.25: p<0.0001). Interestingly we found a significant overall survival (with log rank p<0.01) in patients who presented with ACE DD genotypes had the least estimated overall survival of 13.4months in comparison to 21. 7 and 17.6months for ACE II and I/D genotypes respectively. CONCLUSION: We conclude ACE I/D polymorphism plays a vital role in predisposition of higher risk for glioma. We also suggest that ACE DD genotypes may act as an important predictive biomarker for overall survival of glioma patients. PMID- 29017963 TI - The role of CXCL12 in tumor microenvironment. AB - The chemokine ligand C-X-C motif chemokine ligand 12 (CXCL12) is a kind of small molecules of cytokines that widely expressed in diversified tissues. Recent evidence suggests that CXCL12 plays an important role in the communication of tumor cells with their surrounding microenvironment. The interaction of CXCL12 and its receptors subsequently excite the downstream signaling pathways to affect tumor angiogenesis, tumor cell proliferation and chemoresistance, and thus represents a potential target for cancer therapy. Outpouring molecules targeting CXCL12/CXCR4 axis in tumor microenvironment combined with traditional chemotherapy have drawn more and more attentions, which will be a promising method in anti-cancer therapies. Our review focuses on these roles of CXCL12 and summarizes strategies for treating cancer by disrupting this interaction with special emphasis on the CXCR4/CXCL12 axis. PMID- 29017964 TI - Isolation and characterization of a stress-responsive gene encoding a CHRD domain containing protein from a halotolerant green alga. AB - The genetic basis of stress resistance in extremophilic microalgae is not well studied. In this study, a gene of unknown function, the cluster58 or CL58 gene, was identified from the halotolerant green alga Chlamydomonas W80 and characterized. The CL58 gene encodes a protein containing a domain of unknown function, the CHRD domain, and a putative secretory signaling sequence at its N terminus. The levels of CL58 mRNA increased in response to high copper levels and low temperatures. When the CL58 gene was heterologously expressed as a fusion gene with the NanoLuc luciferase gene in Chlamydomonas reinhardtii, a majority of the NanoLuc activity was detected in the culture medium compared with that in the intracellular fraction. A mutagenic analysis revealed that the putative secretory signaling sequence was sufficient for the secretion of the CL58-NanoLuc fusion protein. In addition, we expressed the protein encoded by the CL58 gene in Escherichia coli; the recombinant, soluble protein was then purified. In summary, we identified a novel gene from C. W80 that appears to encode a stress responsive, CHRD domain-containing secreted protein. PMID- 29017965 TI - A novel mutation in HAUS7 results in severe oligozoospermia in two brothers. AB - Severe oligozoospermia (SO) is a common disease resulting in male infertility; however, its pathophysiology remains unclear. Here, we report two brothers with SO. Whole-exome sequencing (WES) identified a hemizygous variant in HAUS7 (c.G386T:p.G129V), an X-linked gene. HAUS7 has been reported to play a role in the meiotic maturation and chromosome alignment of germ cells. The two patients inherited this variant from their mother, and this variant was considered to be a highly pathogenic mutation by in silico analysis. Moreover, in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) was carried out in both the proband's wife and the brother's wife, but they failed to become pregnant after the embryo transfers. Therefore, this novel mutation in HAUS7 gene may be associated with severe oligozoospermia. PMID- 29017966 TI - Comments on "Vitamin Pharmacogenomics: New Insight into Individual Differences in Diseases and Drug Responses". PMID- 29017968 TI - Author's Reply: Comments on "Vitamin Pharmacogenomics: New Insight into Individual Differences in Diseases and Drug Responses". PMID- 29017969 TI - Vigorous exercise mobilizes CD34+ hematopoietic stem cells to peripheral blood via the beta2-adrenergic receptor. AB - Acute dynamic exercise mobilizes CD34+ hematopoietic stem cells (HSCs) to the bloodstream, potentially serving as an economical adjuvant to boost the collection of HSCs from stem cell transplant donors. The mechanisms responsible for HSC mobilization with exercise are unknown but are likely due to hemodynamic perturbations, endogenous granulocyte-colony stimulating factor (G-CSF), and/or beta2-adrenergic receptor (beta2-AR) signaling. We characterized the temporal response of HSC mobilization and plasma G-CSF following exercise, and determined the impact of in vivo beta-AR blockade on the exercise-induced mobilization of HSCs. Healthy runners (n = 15) completed, in balanced order, two single bouts of steady state treadmill running exercise at moderate (lasting 90-min) or vigorous (lasting 30-min) intensity. A separate cohort of healthy cyclists (n = 12) completed three 30-min cycling ergometer trials at vigorous intensity after ingesting: (i) 10 mg bisoprolol (beta1-AR antagonist); (ii) 80 mg nadolol (beta1 + beta2-AR antagonist); or (iii) placebo, in balanced order with a double-blind design. Blood samples collected before, during (runners only), immediately after, and at several points during exercise recovery were used to determine circulating G-CSF levels (runners only) and enumerate CD34+ HSCs by flow cytometry (runners and cyclists). Steady state vigorous but not moderate intensity exercise mobilized HSCs, increasing the total blood CD34+ count by ~4.15 +/- 1.62 Deltacells/ul (+202 +/- 92%) compared to resting conditions. Plasma G-CSF increased in response to moderate but not vigorous exercise. Relative to placebo, nadolol and bisoprolol lowered exercising heart rate and blood pressure to comparable levels. The number of CD34+ HSCs increased with exercise after the placebo and bisoprolol trials, but not the nadolol trial, suggesting beta2-AR signaling mediated the mobilization of CD34+ cells [Placebo: 2.10 +/- 1.16 (207 +/- 69.2%), Bisoprolol 1.66 +/- 0.79 (+163 +/- 29%), Nadolol: 0.68 +/- 0.54 (+143 +/- 36%) Deltacells/uL]. We conclude that the mobilization of CD34+ HSCs with exercise is not dependent on circulating G-CSF and is likely due to the combined actions of beta2-AR signaling and hemodynamic shear stress. PMID- 29017970 TI - Absence of microglial CX3CR1 impairs the synaptic integration of adult-born hippocampal granule neurons. AB - Microglia are immune cells that play a crucial role in maintaining brain homeostasis. Among the mechanisms of communication between microglia and neurons, the CX3CL1/CX3CR1 axis exerts a central modulatory role. Animals lacking CX3CR1 microglial receptor (CX3CR1-/- mice) exhibit marked alterations not only in microglia but also in neurons located in various regions of the brain. Here we show that microglial depletion of CX3CR1 leads to the deficient synaptic integration of adult-born granule neurons in the dentate gyrus (DG), both at the afferent and efferent level. Regarding the alterations in the former level, these cells show a reduced number of dendritic spines, which also exhibit morphological changes, namely enlargement and shortening. With respect to changes at the efferent level, these cells show a reduced area of axonal terminals. Both at the afferent and efferent level, synapses show ultrastructural enlargement, but they are depleted of synaptic vesicles, which suggests impaired functionality. We also show that selective increased microglial activation and extracellular matrix deposition in the zones in which the afferent synaptic contacts of these cells occur, namely in the molecular and the granule layer of the DG. In order to evaluate the impact of these structural alterations from a functional point of view, we performed a battery of behavioral tests related to hippocampal-dependent emotional behavior. We observed that female CX3CR1-/- mice exhibit a hyperactive, anxiolytic-like and depressive-like phenotype. These data shed light on novel aspects of the regulation of adult hippocampal neurogenesis by microglia that could be highly relevant for research into mood disorders. PMID- 29017967 TI - Non-coding RNAs and Their Roles in Stress Response in Plants. AB - Eukaryotic genomes encode thousands of non-coding RNAs (ncRNAs), which play crucial roles in transcriptional and post-transcriptional regulation of gene expression. Accumulating evidence indicates that ncRNAs, especially microRNAs (miRNAs) and long ncRNAs (lncRNAs), have emerged as key regulatory molecules in plant stress responses. In this review, we have summarized the current progress on the understanding of plant miRNA and lncRNA identification, characteristics, bioinformatics tools, and resources, and provided examples of mechanisms of miRNA and lncRNA-mediated plant stress tolerance. PMID- 29017971 TI - Induction of suppressor of cytokine signaling 3 via HSF-1-HSP70-TLR4 axis attenuates neuroinflammation and ameliorates postoperative pain. AB - Postoperative pain is a common form of acute pain that, if not managed effectively, can become chronic pain. Evidence has shown that glia, especially microglia, mediate neuroinflammation, which plays a vital role in pain sensitization. Moreover, toll-like receptor 4 (TLR4), the tumor necrosis factor receptor (TNF-R), the interleukin-1 receptor (IL-1R), and the interleukin-6 receptor (IL-6R) have been considered key components in central pain sensitization and neuroinflammation. Therefore, we hypothesized that activation of the body's endogenous "immune brakes" will inhibit these receptors and achieve inflammation tolerance as well as relieve postoperative pain. After searching for potential candidates to serve as this immune brake, we identified and focused on the suppressor of cytokine signaling 3 (SOCS3) gene. To regulate SOCS3 expression, we used paeoniflorin to induce heat shock protein 70 (HSP70)/TLR4 signaling. We found that paeoniflorin significantly induced SOCS3 expression both in vitro and in vivo and promoted the efflux of HSP70 from the cytoplasm to the extracellular environment. Furthermore, paeoniflorin markedly attenuated incision induced mechanical allodynia, and this effect was abolished by small interfering RNAs targeting SOCS3. These findings demonstrated an effective and safe strategy to alleviate postoperative pain. PMID- 29017972 TI - Spirometry reference values for an andean high-altitude population. AB - : We compared the spirometric values of people living at High Altitude at the Andean Plateau with those predicted for lowland population. RATIONALE: Spirometry reference values are not yet available for the millions of people living at high altitude in the Andean High Plateau. OBJECTIVE: To obtain spirometric prediction equations from a healthy subset of adults living in Argentina at 3440m above sea level. METHODS: We randomly recruited 172 healthy men and 235 healthy women, ages 20-70. Spirometry was done according to ATS/ERS standards. Reference equations were computed using regression analysis. RESULTS: The resulting prediction equations: For men: FVC=0.0407*height (cm)-0.0250*age(years)-0.81;SEE 0.518. FEV1=0.0327*height (cm)-0.0282*age(years)-0.25;SEE 0.414. For women: FVC(liters)=0.0464*height(cm)-0.0222*age(years)-2.62;SEE 0.396. FEV1(liters)=0.0343*height(cm)-0.0218*age(years)-1.40;SEE 0.316. CONCLUSIONS: These results establish spirometric-prediction equations for the population studied and further demonstrate: (1) a linear decline of FVC and FEV1 with age for both genders, (2) age and height satisfactorily predict both parameters, (3) supra-normal values for this population were found when compared to those predicted by lowland Caucasian equations. PMID- 29017973 TI - Modulating microfibrillar alignment and growth factor stimulation to regulate mesenchymal stem cell differentiation. AB - : The ideal tissue engineering (TE) strategy for ligament regeneration should recapitulate the bone - calcified cartilage - fibrocartilage - soft tissue interface. Aligned electrospun-fibers have been shown to guide the deposition of a highly organized extracellular matrix (ECM) necessary for ligament TE. However, recapitulating the different tissues observed in the bone-ligament interface using such constructs remains a challenge. This study aimed to explore how fiber alignment and growth factor stimulation interact to regulate the chondrogenic and ligamentous differentiation of mesenchymal stem cells (MSCs). To this end aligned and randomly-aligned electrospun microfibrillar scaffolds were seeded with bone marrow derived MSCs and stimulated with transforming growth factor beta3 (TGFbeta3) or connective tissue growth factor (CTGF), either individually or sequentially. Without growth factor stimulation, MSCs on aligned-microfibers showed higher levels of tenomodulin (TNMD) and aggrecan gene expression compared to MSCs on randomly-oriented fibers. MSCs on aligned-microfibers stimulated with TGFbeta3 formed cellular aggregates and underwent robust chondrogenesis, evidenced by increased type II collagen expression and sulphated glycosaminoglycans (sGAG) synthesis compared to MSCs on randomly-oriented scaffolds. Bone morphogenetic protein 2 (BMP2) and type I collagen gene expression were higher on randomly-oriented scaffolds stimulated with TGFbeta3, suggesting this substrate was more supportive of an endochondral phenotype. In the presence of CTGF, MSCs underwent ligamentous differentiation, with increased TNMD expression on aligned compared to randomly aligned scaffolds. Upon sequential growth factor stimulation, MSCs expressed types I and II collagen and deposited higher overall levels of collagen compared to scaffolds stimulated with either growth factor in isolation. These findings demonstrate that modulating the alignment of microfibrillar scaffolds can be used to promote either an endochondral, chondrogenic, fibrochondrogenic or ligamentous MSC phenotype upon presentation of appropriate biochemical cues. STATEMENT OF SIGNIFICANCE: Polymeric electrospun fibers can be tuned to match the fibrillar size and anisotropy of collagen fibers in ligaments, and can be mechanically competent. Therefore, their use is attractive when attempting to tissue engineer the bone ligament interface. A central challenge in this field is recapitulating the cellular phenotypes observed across the bone-ligament interface. Here we demonstrated that it is possible to direct MSCs seeded onto aligned electrospun fibres towards either a ligamentogenic, chondrogenic or fibrochondrogenic phenotype upon presentation of appropriate biochemical cues. This opens the possibility of using aligned microfibrillar scaffolds that are spatially functionalized with specific growth factors to direct MSC differentiation for engineering the bone-ligament interface. PMID- 29017974 TI - Vectofusin-1, a potent peptidic enhancer of viral gene transfer forms pH dependent alpha-helical nanofibrils, concentrating viral particles. AB - Gene transfer using lentiviral vectors has therapeutic applications spanning from monogenic and infectious diseases to cancer. Such gene therapy has to be improved by enhancing the levels of viral infection of target cells and/or reducing the amount of lentivirus for greater safety and reduced costs. Vectofusin-1, a recently developed cationic amphipathic peptide with a pronounced capacity to enhance such viral transduction, strongly promotes the entry of several retroviral pseudotypes into target cells when added to the culture medium. To clarify the molecular basis of its action the peptide was investigated on a molecular and a supramolecular level by a variety of biophysical approaches. We show that in culture medium vectofusin-1 rapidly forms complexes in the 10 nm range that further assemble into annular and extended nanofibrils. These associate with viral particles allowing them to be easily pelleted for optimal virus-cell interaction. Thioflavin T fluorescence, circular dichroism and infrared spectroscopies indicate that these fibrils have a unique alpha-helical structure whereas most other viral transduction enhancers form beta-amyloid fibrils. A vectofusin-1 derivative (LAH2-A4) is inefficient in biological assays and does not form nanofibrils, suggesting that supramolecular assembly is essential for transduction enhancement. Our observations define vectofusin-1 as a member of a new class of alpha-helical enhancers of lentiviral infection. Its fibril formation is reversible which bears considerable advantages in handling the peptide in conditions well-adapted to Good Manufacturing Practices and scalable gene therapy protocols. PMID- 29017975 TI - Suturing Treatment for Blood Blister-Like Aneurysm in Supraclinoid Segment of Internal Carotid Artery. AB - BACKGROUND: Blood blister-like aneurysms (BBAs) are rare but dangerous and challenging to treat. Recurrence and rebleeding are often reported, and many neurosurgeons and interventional radiologists are discouraged by such poor outcomes. Currently, there is no standard method to treat this type of aneurysm. CASE DESCRIPTION: We describe 5 cases of ruptured BBAs in the supraclinoid segment of the internal carotid artery, which were treated successfully using a suturing technique. No patient experienced recurrence or rebleeding, and all patients had a good prognosis. CONCLUSIONS: We conclude that this suturing technique is an optional safe and reliable method to treat BBAs. PMID- 29017976 TI - Outcomes After Transcranial and Endoscopic Endonasal Approach for Tuberculum Meningiomas-A Retrospective Comparison. AB - BACKGROUND: Degree of resection and visual outcome are the main concerns in the surgical resection of tuberculum sellae meningioma (TSM). In addition to the transcranial approach (TCA), the endoscopic endonasal approach (EEA) has been used increasingly. However, the controversy regarding the optimal surgical approach is not clearly resolved. METHODS: We compared the surgical outcomes of each approach for TSMs from 44 patients receiving EEA and 40 patients receiving TCA in 2 institutions between 2004 and 2015. We analyzed the surgical outcomes and affecting factors for the relapse of tumor and visual outcome. RESULTS: Gross total resection rates and relapse-free survival were not different between the 2 groups; however, the locations of residual or recurred tumor definitely differed. All recurrences in the TCA group were in the sella turcica, whereas residual tumors in EEA group were mainly located at lateral or superior to the clinoid process. The complete or partial improvement rate of visual function in the EEA group was 97.7%, but 9 patients (23.7%) in the TCA group experienced visual deterioration after surgery. EEA and younger age (<55 years) were associated with favorable visual outcome. Cerebrospinal fluid leakage occurred in only one case in the EEA group. CONCLUSIONS: Surgical approaches do not affect the gross total resection rates, but the locations of residual tumor or recurrence differ according to surgical approaches. EEA is superior to TCA in visual outcome. At least in pure TSMs, the trend seems to be shifting in favor of EEA, considering the huge difference in visual outcome. PMID- 29017977 TI - Syrinx to Subarachnoid Shunting for Syringomyelia. AB - OBJECTIVE: Surgery for syringomyelia generally aims to treat the underlying cause, if it is known. Optimal management is unclear for idiopathic syringomyelia, or when treatment of the putative cause has failed or is high risk. Syrinx to subarachnoid shunting is an option for these cases; a series is reported to assess the outcomes of this approach. METHODS: We retrospectively analyzed the clinical and radiologic features of a consecutive series of patients with syringomyelia treated with syrinx to subarachnoid shunting. RESULTS: Forty one patients (19 male, 4-79 years old) were treated from 2000 to 2016, including 15 patients with idiopathic syringomyelia, 13 with spinal trauma, 5 with Chiari malformation, 4 with arachnoiditis, 3 with tethered cord, and 1 with arachnoid bands. The patients were treated with a syrinx to subarachnoid shunt, and a subset also underwent expansile duraplasty. At follow-up (3-108 months, mean 36 months) syrinx size was reduced in 37 patients, and there was improvement or stabilization of symptoms in all but 1 patient. Three patients had temporary lower limb sensory symptoms after surgery. Other complications were 2 transient cerebrospinal fluid leaks, a pseudomeningocoele, and 1 postoperative myocardial infarction. Two cases of shunt dislodgement required reoperation, and a third case required early reoperation for an enlarging syrinx. There were no cases of shunt blockage or infection. CONCLUSIONS: Syrinx to subarachnoid shunting is a safe and effective treatment for idiopathic syringomyelia and for patients who are not suitable for, or have not responded to, other treatment. PMID- 29017978 TI - Cranial Base Meningiomas. PMID- 29017979 TI - Transdural Spinal Cord Herniation: Tips and Tricks. AB - Recognition of transdural spinal cord herniation has increased over the past decade. This condition remains little known, particularly outside the specialized fields of spinal surgery and neuroradiology, leading to a significant delay in clinical diagnosis and treatment. It should be considered among the differential diagnoses in patients with gradual-onset lower-limb weakness of presumed spinal origin. Reaching a diagnosis using magnetic resonance imaging is essential to refer patients for surgery before their myelopathy worsens. We describe our surgical experience to untether the spinal cord by wrapping a dura graft around the spinal cord. Three case reports and a review of the literature are discussed. PMID- 29017980 TI - Predisposing Factors of Fracture Nonunion After Posterior C1 Lateral Mass Screws Combined with C2 Pedicle/Laminar Screw Fixation for Type II Odontoid Fracture. AB - INTRODUCTION: The aim of this study was to explore the predisposing factors for fracture nonunion after a lateral screw was combined with C2 pedicle/laminar screw for a type II odontoid fracture and hopefully provide references in decision making and surgical planning for spinal surgeons. METHODS: This is a retrospective study. By retrieving the medical records from January 2010 to July 2015 in our hospital, 117 type II odontoid fracture patients were reviewed. According to the occurrence of fracture union at the final follow-up, patients were divided into 2 groups: union and nonunion. To investigate the predisposing factors for fracture nonunion, 3 categorized factors were analyzed statistically: patient characteristics-age, sex, body mass index, preoperative Japanese Orthopaedic Association (JOA) scores, duration, comorbidity, and complicated injuries; surgical variables-surgery time, blood loss, C2 fixation manner, vertebral artery injury, bone source for fusion between the posterior arch of C1 and the laminae and spinous process of C2; radiographic parameters-preoperative and immediate postoperative data of C0-2 curvature, C2-7 curvature, C2-7 sagittal vertical axis, C7 slope, fracture classification, congenital hypoplastic vertebral artery, and the separation and displacement of the odontoid fracture. Other variables including JOA and visual analog scale scores for neck pain, neck stiffness, and patient satisfaction at final follow-up were recorded and compared between the 2 groups. RESULTS: Postoperative fracture nonunion was detected in 76 of 117 patients (65%) at final follow-up. There was no statistically significant difference between the 2 groups in patient characteristics of sex, body mass index, JOA score, comorbidity, and complicated injuries. The mean age at operation was younger in the union group than in the nonunion group, and the mean duration was shorter in the union group than in the nonunion group. There was no difference in surgical variables of surgery time, blood loss, C2 fixation manner, vertebral artery injury, bone source for fusion between the posterior arch of C1 and the laminae and spinous process of C2. There was no difference in radiographic parameters of fracture classification, congenital hypoplastic vertebral artery, preoperative and immediate postoperative C0-2 curvature, C2-7 curvature, C2-7 SVA, and C7 slope. No difference was found in preoperative and immediate postoperative displacement of the odontoid fracture or immediate postoperative separation of the odontoid fracture, while the preoperative separation of the odontoid fracture was shorter in the union group than in the nonunion group. The logistic regression analysis revealed that advanced age (>45 years), long duration (>2 months), and preoperative separation of the odontoid fracture (>4 mm) were independently associated with the postoperative fracture nonunion. There were no differences between the 2 groups in JOA, neck pain, neck stiffness, and patient satisfaction at final follow-up. CONCLUSIONS: Advanced age, long duration, and preoperative separation of odontoid fracture >4 mm are predisposing factors for fracture nonunion after posterior C1 lateral screw combined with C2 pedicle/laminar screw fixation for type II odontoid fracture. Our findings did not demonstrate any evidence of lower functional outcome and patients satisfaction for those patients who had odontoid nonunion. PMID- 29017981 TI - Prolonged Intracisternal Papaverine Toxicity: Index Case Description and Proposed Mechanism of Action. AB - BACKGROUND: Intracisternal papaverine (iPPV) is a vasodilator used for prophylaxis of intraoperative vasospasm during aneurysmal clipping. Postoperative side effects of iPPV include transient cranial nerve palsies, most commonly mydriasis owing to oculomotor nerve involvement, with rapid resolution. METHODS: We critically reviewed current literature on the adverse effects of iPPV in aneurysmal surgery with a focus on oculomotor nerve involvement. We also present the index case of prolonged bilateral mydriasis secondary to iPPV irrigation toxicity and its putative underlying mechanism. RESULTS: Papaverine toxicity occurs in the setting of its antimuscarinic action and blood-cerebrospinal fluid and blood-brain barrier compromise owing to acute subarachnoid hemorrhage and direct effect of papaverine. Our patient also experienced severe vasospasm and a minor stroke, both contributing to further blood-brain barrier disruption, and relatively acidic pH of the subarachnoid hemorrhage milieu. CONCLUSIONS: We propose that these factors perpetuate phase dynamics of papaverine crystals and facilitate a sustained slow release of papaverine within the cisternal system. Were it indicated, 0.3% iPPV would reasonably diminish the risk for neurotoxicity. PMID- 29017982 TI - Clinical Presentation, Diagnosis, and Surgical Treatment of Spontaneous Cervical Intradural Disc Herniations: A Review of the Literature. AB - OBJECTIVE: Spontaneous cervical intradural disc herniation (IDH) is a rare occurrence with limited and disparate information available regarding its presentation, diagnosis, and treatment. However, its accurate detection is vital for planning surgical treatment. In this review of the literature, we collected data from all cervical IDHs described to date. Particular attention was paid to diagnostic findings, surgical approach, and causation for cervical IDH, especially at the cervicothoracic junction. METHODS: A review for cases of cervical IDH was performed via the following search criteria: ("neck"[MeSH Terms] OR "neck"[All Fields] OR "cervical"[All Fields]) AND intradural[All Fields] AND disc[All Fields]. Thirty-seven cases of cervical disc herniation were identified. Demographic variables identified included age, sex, cervical level of herniation, history of associated cervical trauma, presence of Brown-Sequard syndrome, Horner syndrome, and other neurologic findings, radiographic findings, direction of surgical approach, and postoperative outcomes. RESULTS: A total of 37 cases of cervical IDH were identified. Most of the cases occurred at the lower levels of the cervical spine, with 35.1% at the C5-C6 level, followed by 24.3% at C6-C7, and lower still at other levels. Of the patients reviewed, 44.4% had a previous history of trauma before manifestation of symptom, with the majority being spontaneous IDH with no previous history of trauma or spine surgery. Brown Sequard syndrome was present in 43.2% of the patients, whereas 10.8% of patients experienced Horner syndrome. The most common presentations of IDH included quadriplegia, finger/gait ataxia, radiculopathy, and nuchal pain. The degree of neurologic recovery was not associated with patient age. Most of the cervical IDHs in the literature were treated surgically via an anterior approach, but a larger portion of patients who underwent a posterior approach had improved recovery. CONCLUSIONS: Cervical IDH is a rare event, with this review of the literature outlining the clinical and radiographic parameters of its presentation as well as comparing common surgical strategies for treatment. We outline theories underlying the development of cervical IDH and argue for a posterior surgical approach in which the disc herniation is sequestrated with migration. PMID- 29017983 TI - Endoscopic Transsphenoidal Surgery Outcomes in 331 Nonfunctioning Pituitary Adenoma Cases After a Single Surgeon Learning Curve. AB - OBJECTIVE: The outcomes of recent endoscopic surgery of nonfunctioning pituitary adenomas (NFPAs) are controversial when compared with traditional microscopic surgery. We aimed to assess the outcomes of endoscopic transsphenoidal surgeries performed by 1 surgeon with 7 years of experience and elucidate the predictive factors for surgical outcomes for NFPAs. METHODS: We included 331 patients (155 men and 176 women) with clinical NFPAs who underwent transsphenoidal surgery because of visual symptoms by a single surgeon in Seoul National University Hospital from March 2010 to May 2016. We assessed the tumor removal rate, hormonal outcomes, visual outcomes, and complications. RESULTS: The gross total resection rate of endoscopic transsphenoidal surgery for NFPAs by a single surgeon was 74.9%. Cavernous sinus invasion, a high Knosp grade, large tumor size, previous surgery, and lack of surgical experience in the neurosurgeon elevated the risk for residual tumors. Visual deficits were improved in 73.4% of the patients, which was associated with tumor size, preoperative visual impairment score, previous radiation, and surgical experience. Hormonal status was improved in 15.4% and aggravated in 32.9% after surgery. There were no predictors for hormonal recovery. Transient diabetes insipidus (DI) was the most common complication (9.1%), and among these patients, 3.0% had persistent DI. CONCLUSIONS: Endoscopic transsphenoidal surgery by a well-experienced surgeon was an effective and safe treatment for NFPAs, but the hormonal outcomes were not changed compared with previous reports of microscopic surgery. Large tumor size and cavernous sinus invasion were still the barriers for achieving total resection. PMID- 29017984 TI - Superficial Siderosis Associated with Pineal Cavernous Malformation. AB - BACKGROUND: Cavernous malformations in the pineal region are rare and difficult to anticipate from preoperative evaluation in patients with pineal apoplexy. We herein report the first case of a pineal cavernous malformation with superficial siderosis. Radiological findings were helpful in identifying the presence of the cavernous malformation. CASE DESCRIPTION: A 47-year-old female presented with a 4 month history of progressive headache, nausea, and dizziness. She complained of double vision and exhibited upward gaze palsy and papilledema on fundoscopy. Radiological examination revealed subacute hemorrhage in the pineal region and enlarged lateral ventricles. Furthermore, T2-star-weighted gradient-echo magnetic resonance imaging demonstrated a linear hypointensity along the pial surface of the cerebral cortex, brainstem, and cerebellum, indicating hemosiderin deposition consistent with superficial siderosis. Suspecting the presence of a cavernous malformation based on the radiological findings of superficial siderosis, we performed total mass resection. The postoperative course was uneventful and her preoperative symptoms resolved completely. CONCLUSION: Radiological findings of superficial siderosis on T2-star-weighted gradient-echo imaging are useful to making a diagnosis of cavernous malformation in cases of pineal apoplexy. They are also important for making the treatment decision to perform total mass resection, which is the best curative method for pineal cavernous malformations. PMID- 29017985 TI - Analogous Three-Dimensional Constructive Interference in Steady State Sequences Enhance the Utility of Three-Dimensional Time of Flight Magnetic Resonance Angiography in Delineating Lenticulostriate Arteries in Insular Gliomas: Evidence from a Prospective Clinicoradiologic Analysis of 48 Patients. AB - BACKGROUND: Three-dimensional (3D) time of flight (TOF) imaging is the current gold standard for noninvasive, preoperative localization of lenticulostriate arteries (LSAs) in insular gliomas; however, the utility of this modality depends on tumor intensity. METHODS: Over a 3-year period, 48 consecutive patients with insular gliomas were prospectively evaluated. Location of LSAs and their relationship with the tumor were determined using a combination of contrast enhanced coronal 3D TOF magnetic resonance angiography and coronal 3D constructive interference in steady state (CISS) sequences. These findings were analyzed with respect to extent of tumor resection and early postoperative motor outcome. RESULTS: Tumor was clearly visualized in 29 (60.4%) patients with T1 hypointense tumors using 3D TOF and in all patients using CISS sequences. Using combined 3D TOF and CISS, LSA-tumor interface was well seen in 47 patients, including all patients with T1-heterointense or T1-isointense tumors. Extent of resection was higher in the LSA-pushed group compared with the LSA-encased group. In the LSA-encased group, 6 (12.5%) patients developed postoperative hemiparesis; 2 (4.2%) cases were attributed to LSA injury. CONCLUSIONS: Contrast-enhanced 3D TOF can delineate LSAs in almost all insular gliomas but is limited in identifying the LSA-tumor interface. This limitation can be overcome by addition of analogous CISS sequences that delineate the LSA-tumor interface regardless of tumor intensity. Combined 3D TOF and 3D CISS is a useful tool for surgical planning and safer resections of insular tumors and may have added surgical relevance when included as an intraoperative adjunct. PMID- 29017986 TI - Environmental Suitability of Vibrio Infections in a Warming Climate: An Early Warning System. AB - BACKGROUND: Some Vibrio spp. are pathogenic and ubiquitous in marine waters with low to moderate salinity and thrive with elevated sea surface temperature (SST). OBJECTIVES: Our objective was to monitor and project the suitability of marine conditions for Vibrio infections under climate change scenarios. METHODS: The European Centre for Disease Prevention and Control (ECDC) developed a platform (the ECDC Vibrio Map Viewer) to monitor the environmental suitability of coastal waters for Vibrio spp. using remotely sensed SST and salinity. A case-crossover study of Swedish cases was conducted to ascertain the relationship between SST and Vibrio infection through a conditional logistic regression. Climate change projections for Vibrio infections were developed for Representative Concentration Pathway (RCP) 4.5 and RCP 8.5. RESULTS: The ECDC Vibrio Map Viewer detected environmentally suitable areas for Vibrio spp. in the Baltic Sea in July 2014 that were accompanied by a spike in cases and one death in Sweden. The estimated exposure-response relationship for Vibrio infections at a threshold of 16 degrees C revealed a relative risk (RR)=1.14 (95% CI: 1.02, 1.27; p=0.024) for a lag of 2 wk; the estimated risk increased successively beyond this SST threshold. Climate change projections for SST under the RCP 4.5 and RCP 8.5 scenarios indicate a marked upward trend during the summer months and an increase in the relative risk of these infections in the coming decades. CONCLUSIONS: This platform can serve as an early warning system as the risk of further Vibrio infections increases in the 21st century due to climate change. https://doi.org/10.1289/EHP2198. PMID- 29017988 TI - Encouraging Physical Activity in Patients With Diabetes: Intervention Using a Reinforcement Learning System. AB - BACKGROUND: Regular physical activity is known to be beneficial for people with type 2 diabetes. Nevertheless, most of the people who have diabetes lead a sedentary lifestyle. Smartphones create new possibilities for helping people to adhere to their physical activity goals through continuous monitoring and communication, coupled with personalized feedback. OBJECTIVE: The aim of this study was to help type 2 diabetes patients increase the level of their physical activity. METHODS: We provided 27 sedentary type 2 diabetes patients with a smartphone-based pedometer and a personal plan for physical activity. Patients were sent short message service messages to encourage physical activity between once a day and once per week. Messages were personalized through a Reinforcement Learning algorithm so as to improve each participant's compliance with the activity regimen. The algorithm was compared with a static policy for sending messages and weekly reminders. RESULTS: Our results show that participants who received messages generated by the learning algorithm increased the amount of activity and pace of walking, whereas the control group patients did not. Patients assigned to the learning algorithm group experienced a superior reduction in blood glucose levels (glycated hemoglobin [HbA1c]) compared with control policies, and longer participation caused greater reductions in blood glucose levels. The learning algorithm improved gradually in predicting which messages would lead participants to exercise. CONCLUSIONS: Mobile phone apps coupled with a learning algorithm can improve adherence to exercise in diabetic patients. This algorithm can be used in large populations of diabetic patients to improve health and glycemic control. Our results can be expanded to other areas where computer-led health coaching of humans may have a positive impact. Summary of a part of this manuscript has been previously published as a letter in Diabetes Care, 2016. PMID- 29017989 TI - Uterine Fundectomy in Patients With Benign Etiology Undergoing Hysterectomy: New Surgical Technique. AB - BACKGROUND: Hysterectomy is the most common surgical procedure in gynecology, not only in cases of malignancies but also in many benign cases. Many uterine preservation techniques have been introduced as alternatives to hysterectomy. OBJECTIVE: We aimed to propose a new uterine surgical procedure. In this paper, we compare the utility of this new technique to the limitations of current procedures. METHODS: Uterine fundectomy may be considered as a subtotal hysterectomy. In this new technique, the uterine fundus including all pathologic tissue is cut as a reverse trapezoid by monopolar cautery. The upper side of the trapezoid, which includes the whole uterine fundus, is removed, but the fallopian tubes and cornual segment are preserved. A small uterine cavity remains, as well as the endometrial tissue lining it. RESULTS: Patient recruitment for this study began in April 2017 and is expected to end approximately 12 months later. Assessment of the primary outcomes is expected to take place in April 2018. CONCLUSIONS: Uterine preservation is particularly critical in developing new surgical approaches that can lead to a positive impact on patient satisfaction. This protocol outlines the first attempt to prospectively test surgical fundectomy in candidates for hysterectomy for benign indications. PMID- 29017990 TI - Healthy Beyond Pregnancy, a Web-Based Intervention to Improve Adherence to Postpartum Care: Randomized Controlled Feasibility Trial. AB - BACKGROUND: During the postpartum visit, health care providers address issues with short- and long-term implications for maternal and child health. Women with Medicaid insurance are less likely to return for a postpartum visit compared with women with private insurance. Behavioral economics acknowledges that people do not make exclusively rational choices, rather immediate gratification, cognitive and psychological biases, and social norms influence decision making. Drawing on insights from decision science, behavioral economists have examined how these biases can be modulated through carefully designed interventions. We have developed a Web-based tool, Healthy Beyond Pregnancy, that incorporates empirically derived concepts of behavioral economics to improve adherence rates to the postpartum visit. OBJECTIVES: The primary objectives of this pilot study were to (1) refine and assess the usability of Healthy Beyond Pregnancy and (2) assess the feasibility of a randomized controlled trial (RCT) of the intervention. METHODS: We used a multistep process and multidisciplinary team of maternal-fetal medicine physicians, a behavioral economist, and researchers with expertise in behavioral interventions to design Healthy Beyond Pregnancy. We assessed the usability of the program with the Post-Study System Usability Questionnaire (PSSUQ), a validated 7-point scale, and semistructured interviews with postpartum women. We then conducted a feasibility trial to determine the proportion of eligible women who were willing to participate in an RCT of Healthy Beyond Pregnancy and the proportion of women willing to complete the Web-based program. Exploratory outcomes of the pilot trial included attendance at the postpartum visit, uptake of long-acting reversible contraception, and uptake of any contraception. RESULTS: The median PSSUQ score for Healthy Beyond Pregnancy was 6.5 (interquartile range: 6.1-7) demonstrating high usability. Semistructured interviews (n=10) provided in-depth comments about users' experience and further improved the program. A total of 34 postpartum women with Medicaid insurance were approached for the pilot trial, and 30 (88%) were consented and randomized. All women randomized to Healthy Beyond Pregnancy completed the Web-based program, had text-enabled cell phones, and were willing to receive text messages from the study team. Women in the Healthy Beyond Pregnancy arm were more likely to return for a postpartum visit compared with women in the control arm with 85% of women in Healthy Beyond Pregnancy returning versus 53% in the control arm (odds ratio in the Healthy Beyond Pregnancy group: 5.3; 95% CI 0.9-32.0; P=.06). CONCLUSIONS: We have developed a highly usable and acceptable Web-based program designed to increase attendance at the postpartum visit. Our pilot trial demonstrates that women are willing and able to participate in a randomized trial of a Web-based program and text messaging system. TRIAL REGISTRATION: Clinicaltrials.gov NCT03296774; https://clinicaltrials.gov/ct2/show/NCT03296774 (Archived by WebCite at http://www.webcitation.org/6tpgXFzyk). PMID- 29017992 TI - Mobile Apps for Suicide Prevention: Review of Virtual Stores and Literature. AB - BACKGROUND: The best manner to prevent suicide is to recognize suicidal signs and signals, and know how to respond to them. OBJECTIVE: We aim to study the existing mobile apps for suicide prevention in the literature and the most commonly used virtual stores. METHODS: Two reviews were carried out. The first was done by searching the most commonly used commercial app stores, which are iTunes and Google Play. The second was a review of mobile health (mHealth) apps in published articles within the last 10 years in the following 7 scientific databases: Science Direct, Medline, PsycINFO, Embase, The Cochrane Library, IEEE Xplore, and Google Scholar. RESULTS: A total of 124 apps related to suicide were found in the cited virtual stores but only 20 apps were specifically designed for suicide prevention. All apps were free and most were designed for Android. Furthermore, 6 relevant papers were found in the indicated scientific databases; in these studies, some real experiences with physicians, caregivers, and families were described. The importance of these people in suicide prevention was indicated. CONCLUSIONS: The number of apps regarding suicide prevention is small, and there was little information available from literature searches, indicating that technology-based suicide prevention remains understudied. Many of the apps provided no interactive features. It is important to verify the accuracy of the results of different apps that are available on iOS and Android. The confidence generated by these apps can benefit end users, either by improving their health monitoring or simply to verify their body condition. PMID- 29017995 TI - Germline Testing Could Help More Patients. AB - In addition to tumor sequencing for targetable somatic alterations, patients with cancer may benefit from concurrent germline analysis, which increases the discovery of clinically actionable mutations, according to a recent study. PMID- 29017991 TI - Feasibility of Gamified Mobile Service Aimed at Physical Activation in Young Men: Population-Based Randomized Controlled Study (MOPO). AB - BACKGROUND: The majority of young people do not meet the recommendations on physical activity for health. New innovative ways to motivate young people to adopt a physically active lifestyle are needed. OBJECTIVE: The study aimed to study the feasibility of an automated, gamified, tailored Web-based mobile service aimed at physical and social activation among young men. METHODS: A population-based sample of 496 young men (mean age 17.8 years [standard deviation 0.6]) participated in a 6-month randomized controlled trial (MOPO study). Participants were randomized to an intervention (n=250) and a control group (n=246). The intervention group was given a wrist-worn physical activity monitor (Polar Active) with physical activity feedback and access to a gamified Web-based mobile service, providing fitness guidelines, tailored health information, advice of youth services, social networking, and feedback on physical activity. Through the trial, the physical activity of the men in the control group was measured continuously with an otherwise similar monitor but providing only the time of day and no feedback. The primary outcome was the feasibility of the service based on log data and questionnaires. Among completers, we also analyzed the change in anthropometry and fitness between baseline and 6 months and the change over time in weekly time spent in moderate to vigorous physical activity. RESULTS: Mobile service users considered the various functionalities related to physical activity important. However, compliance of the service was limited, with 161 (64.4%, 161/250) participants visiting the service, 118 (47.2%, 118/250) logging in more than once, and 41 (16.4%, 41/250) more than 5 times. Baseline sedentary time was higher in those who uploaded physical activity data until the end of the trial (P=.02). A total of 187 (74.8%, 187/250) participants in the intervention and 167 (67.9%, 167/246) in the control group participated in the final measurements. There were no differences in the change in anthropometry and fitness from baseline between the groups, whereas waist circumference was reduced in the most inactive men within the intervention group (P=.01). Among completers with valid physical activity data (n=167), there was a borderline difference in the change in mean daily time spent in moderate to vigorous physical activity between the groups (11.9 min vs -9.1 min, P=.055, linear mixed model). Within the intervention group (n=87), baseline vigorous physical activity was inversely associated with change in moderate to vigorous physical activity during the trial (R=-.382, P=.01). CONCLUSIONS: The various functionalities related to physical activity of the gamified tailored mobile service were considered important. However, the compliance was limited. Within the current setup, the mobile service had no effect on anthropometry or fitness, except reduced waist circumference in the most inactive men. Among completers with valid physical activity data, the trial had a borderline positive effect on moderate to vigorous physical activity. Further development is needed to improve the feasibility and adherence of an integrated multifunctional service. TRIAL REGISTRATION: Clinicaltrials.gov NCT01376986; http://clinicaltrials.gov/ct2/show/NCT01376986 (Archived by WebCite at http://www.webcitation.org/6tjdmIroA). PMID- 29017994 TI - Utilizing Consumer Health Informatics to Support Management of Hypertension by Clinical Pharmacists in Primary Care: Study Protocol. AB - BACKGROUND: Hypertension (HTN) is a major public health concern in the United States given its wide prevalence, high cost, and poor rates of control. Multiple strategies to counter this growing epidemic have been studied, and home blood pressure (BP) monitoring, mobile health (mHealth) interventions, and referrals to clinical pharmacists for BP management have all shown potential to be effective intervention strategies. OBJECTIVE: The purpose of this study is to establish feasibility and acceptability of BPTrack, a clinical pharmacist-led mHealth intervention that aims to improve BP control by supporting home BP monitoring and medication adherence among patients with uncontrolled HTN. BPTrack is an intervention that makes home-monitored BP data available to clinical pharmacists for use in HTN management. Secondarily, this study seeks to understand barriers to adoption of this intervention, as well as points of improvement among key stakeholders, so that larger scale dissemination of the intervention may be achieved and more rigorous research can be conducted. METHODS: This study is recruiting up to 25 individuals who have poorly controlled HTN from a Family Medicine clinic affiliated with a large Midwestern academic medical center. Patient participants complete a baseline visit, including installation and instructions on how to use BPTrack. Patient participants are then asked to follow the BP monitoring protocol for a period of 12 weeks, and subsequently complete a follow-up visit at the conclusion of the study period. RESULTS: The recruitment period for the pilot study began in November 2016, and data collection is expected to conclude in late-2017. CONCLUSIONS: This pilot study seeks to document the feasibility and acceptability of a clinical pharmacist-led mHealth approach to managing HTN within a primary care setting. Through our 12-week pilot study, we expect to lend support for this approach, and lay the foundation for translating this approach into wider-scale implementation. This mHealth intervention seeks to leverage the multidisciplinary care team already in place within primary care, and to improve health outcomes for patients with uncontrolled HTN. TRIAL REGISTRATION: Clinicaltrials.gov NCT02898584; https://clinicaltrials.gov/ct2/show/NCT02898584 (Archived by WebCite(r) at http://www.webcitation.org/6u3wTGbe6). PMID- 29017993 TI - Views of Community Managers on Knowledge Co-creation in Online Communities for People With Disabilities: Qualitative Study. AB - BACKGROUND: The use of online communities to promote end user involvement and co creation in the product and service innovation process is well documented in the marketing and management literature. Whereas online communities are widely used for health care service provision and peer-to-peer support, only little is known about how they could be integrated into the health care innovation process. OBJECTIVE: The overall objective of this qualitative study was to explore community managers' views on and experiences with knowledge co-creation in online communities for people with disabilities. METHODS: A descriptive qualitative research design was used. Data were collected through semi-structured interviews with nine community managers. To complement the interview data, additional information was retrieved from the communities in the form of structural information (number of registered users, number and names of topic areas covered by the forum) and administrative information (terms and conditions and privacy statements, forum rules). Data were analyzed using thematic analysis. RESULTS: Our results highlight two main aspects: peer-to-peer knowledge co-creation and types of collaboration with external actors. Although community managers strongly encouraged peer-to-peer knowledge co-creation, our findings indicated that these activities were not common practice in the communities under investigation. In fact, much of what related to co-creation, prototyping, and product development was still perceived to be directed by professionals and experts. Community managers described the role of their respective communities as informing this process rather than a driving force. The role of community members as advisors to researchers, health care professionals, and businesses was discussed in the context of types of collaboration with external actors. According to the community managers, most of the external inquiries related to research projects of students or health care professionals in training, who often joined a community for the sole purpose of recruiting participants for their research. Despite this unilateral form of knowledge co-creation, community managers acknowledged the mere interest of these user groups as beneficial, as long as their interest was not purely financially motivated. Being able to contribute to advancing research, improving products, and informing the planning and design of health care services were described as some of the key motivations to engage with external stakeholders. CONCLUSIONS: This paper draws attention to the currently under-investigated role of online communities as platforms for collaboration and co-creation between patients, health care professionals, researchers, and businesses. It describes community managers' views on and experiences with knowledge co-creation and provides recommendations on how these activities can be leveraged to foster knowledge co-creation in health care. Engaging in knowledge co-creation with online health communities may ultimately help to inform the planning and design of products, services, and research activities that better meet the actual needs of those living with a disability. PMID- 29017987 TI - Nanomaterials Versus Ambient Ultrafine Particles: An Opportunity to Exchange Toxicology Knowledge. AB - BACKGROUND: A rich body of literature exists that has demonstrated adverse human health effects following exposure to ambient air particulate matter (PM), and there is strong support for an important role of ultrafine (nanosized) particles. At present, relatively few human health or epidemiology data exist for engineered nanomaterials (NMs) despite clear parallels in their physicochemical properties and biological actions in in vitro models. OBJECTIVES: NMs are available with a range of physicochemical characteristics, which allows a more systematic toxicological analysis. Therefore, the study of ultrafine particles (UFP, <100 nm in diameter) provides an opportunity to identify plausible health effects for NMs, and the study of NMs provides an opportunity to facilitate the understanding of the mechanism of toxicity of UFP. METHODS: A workshop of experts systematically analyzed the available information and identified 19 key lessons that can facilitate knowledge exchange between these discipline areas. DISCUSSION: Key lessons range from the availability of specific techniques and standard protocols for physicochemical characterization and toxicology assessment to understanding and defining dose and the molecular mechanisms of toxicity. This review identifies a number of key areas in which additional research prioritization would facilitate both research fields simultaneously. CONCLUSION: There is now an opportunity to apply knowledge from NM toxicology and use it to better inform PM health risk research and vice versa. https://doi.org/10.1289/EHP424. PMID- 29017996 TI - Sperm counts, testicular cancers, and the environment. PMID- 29017997 TI - Population-Based Study on Patterns of Cardiac Stress Testing After Percutaneous Coronary Intervention. AB - BACKGROUND: The appropriate use criteria considers cardiac stress testing within 2 years after percutaneous coronary intervention (PCI) to be rarely appropriate, unless prompted by symptoms or change in clinical status. Little is known about the patterns of cardiac stress testing after PCI in the single-payer Canadian healthcare system, where mechanisms for reimbursement are different from the United States. METHODS AND RESULTS: Frequency and timing of cardiac stress testing within 2 years of PCI performed between April 2004 and March 2013 in Ontario, Canada, was determined from linked provincial databases. Subsequent rates of coronary angiography and revascularization after stress testing were ascertained. Of the 112 691 patients with PCI, 67 442 (59.8%) underwent at least 1 stress test, with 38 267 (34.0%) undergoing repeat stress testing (ie, >1 stress test) within 2 years. Patients who underwent stress testing were younger, had less medical comorbidities, were more likely to reside in urban areas, and had higher incomes. Spikes in incidence of repeat stress testing were observed at 3 to 4 months, 6 to 7 months, and 12 to 13 months after the prior stress test. Of those tested, only 5.9% underwent subsequent coronary angiography, and only 3.1% underwent repeat revascularization within 60 days of stress testing. CONCLUSIONS: More than half of all patients undergo cardiac stress testing within 2 years of PCI, with one third undergoing repeat stress tests. Only 1 of 30 tested patients underwent repeat revascularization. These findings reinforce the appropriate use criteria recommendations against routine stress testing after PCI. Further work is needed to aid with the selection of patients most likely to benefit from stress testing after PCI. PMID- 29017998 TI - Making a Difference in Disparities. PMID- 29017999 TI - Erratum. Genetic Disruption of Adenosine Kinase in Mouse Pancreatic beta-Cells Protects Against High-Fat Diet-Induced Glucose Intolerance. Diabetes 2017;66:1928 1938. PMID- 29018000 TI - Waveform capnography: an alternative to physician gestalt in determining optimal intubating conditions after administration of paralytic agents. AB - PURPOSE: We sought to evaluate the utility of waveform capnography (WC) in detecting paralysis, by using apnoea as a surrogate determinant, as compared with clinical gestalt during rapid sequence intubation. Additionally, we sought to determine if this improves the time to intubation and first pass success rates through more consistent and expedient means of detecting optimal intubating conditions (ie, paralysis). METHODS: A prospective observational cohort study of consecutively enrolled patients was conducted from April to June 2016 at an academic, urban, level 1 trauma centre in New York City. Nasal cannula WC was used to determine the presence of apnoea as a surrogate measure of paralysis versus physician gestalt (ie, blink test, mandible relaxation, and so on). RESULTS: One hundred patients were enrolled (50 in the WC group and 50 in the gestalt group). There were higher proportions of failure to determine optimal intubating conditions (ie, paralysis) in the gestalt group (32%, n=16) versus the WC group (6%, n=3), absolute difference 26, 95% CI 10 to 40. Time to intubation was longer in the gestalt group versus the WC group (136 seconds vs 116 seconds, absolute difference 20 seconds 95% CI 14 to 26). First pass success rates were higher in the WC group verses the gestalt group (92%, 95% CI 85 to 97 vs 88%, 95% CI 88 to 95, absolute difference 4%, 95% CI 1 to 8). CONCLUSION: These preliminary results demonstrate WC may be a useful objective measure to determine the presence of paralysis and optimal in tubating conditions in RSI. PMID- 29018001 TI - Quality of care is under threat, and services "straining at the seams," warns CQC. PMID- 29018002 TI - Glucose uptake inhibition decreases expressions of receptor activator of nuclear factor-kappa B ligand (RANKL) and osteocalcin in osteocytic MLO-Y4-A2 cells. AB - Bone and glucose metabolism are closely associated with each other. Both osteoblast and osteoclast functions are important for the action of osteocalcin, which plays pivotal roles as an endocrine hormone regulating glucose metabolism. However, it is unknown whether osteocytes are involved in the interaction between bone and glucose metabolism. We used MLO-Y4-A2, a murine long bone-derived osteocytic cell line, to investigate effects of glucose uptake inhibition on expressions of osteocalcin and bone-remodeling modulators in osteocytes. We found that glucose transporter 1 (GLUT1) is expressed in MLO-Y4-A2 cells and that treatment with phloretin, a GLUT inhibitor, significantly inhibited glucose uptake. Real-time PCR and Western blot showed that phloretin significantly and dose-dependently decreased the expressions of RANKL and osteocalcin, whereas osteoprotegerin or sclerostin was not affected. Moreover, phloretin activated AMP activated protein kinase (AMPK), an intracellular energy sensor. Coincubation of ara-A, an AMPK inhibitor, with phloretin canceled the phloretin-induced decrease in osteocalcin expression, but not RANKL. In contrast, phloretin suppressed phosphorylation of ERK1/2, JNK, and p38 MAPK, and treatments with the p38 inhibitor SB203580 and the MEK inhibitor PD98059, but not the JNK inhibitor SP600125, significantly decreased expressions of RANKL and osteocalcin. These results indicate that glucose uptake by GLUT1 is required for RANKL and osteocalcin expressions in osteocytes, and that inhibition of glucose uptake decreases their expressions through AMPK, ERK1/2, and p38 MAPK pathways. These findings suggest that lowering glucose uptake into osteocytes may contribute to maintain blood glucose levels by decreasing osteocalcin expression and RANKL induced bone resorption. PMID- 29018003 TI - Improving patient outcomes after surgery. PMID- 29018004 TI - Mid-Upper-Arm Circumference and Arm-to-Height Ratio to Identify Obesity in School Age Children. AB - BACKGROUND: In resource-poor settings, anthropometric parameters are evaluated as potential alternatives to the body mass index (BMI) for detecting overweight and obesity in children. To this end, the mid-upper-arm circumference (MUAC) and the mid-upper-arm circumference-to-height ratio (AHtR) were evaluated as proxies to BMI in Thai school-age children. STUDY DESIGN: An observational, cross-sectional study was performed on school-aged children. PARTICIPANTS: Children in grades 1 through 6 at all public elementary schools in the Ongkharak district, Nakhon Nayok, Thailand during May and June 2013 were included. This is a rural district with low per capita income. METHODS: Weight, height, and MUAC were measured in school-age children and analyzed to identify optimal cut-off values for MUAC and AHtR for detection of overweight and obesity in comparison to BMI. Receiver operating characteristic (ROC) curve analysis determined the validity of MUAC and AHtR use. RESULTS: Data from 3,618 children, aged 6.0-12.99 years, were analyzed. MUAC correlated with age and height (P < 0.001), but especially with body weight (r = 0.888 to 0.914) and BMI (r = 0.859 to 0.908) in both genders, while AHtR correlated with body weight and BMI (P < 0.001), but not with age. Cut-off values of MUAC for obesity diagnosis ranged from 18.9 to 25.5 cm for boys and from 19.8 to 25.4 cm for girls. Accuracy was excellent for both boys (AUC = 0.952-0.991) and girls (AUC = 0.917-0.990). Cut-off of MUAC for overweight diagnosis ranged from 17.2 to 22.4 cm for boys (AUC = 0.883-0.965) and from 18.0 to 23.2 cm for girls (AUC = 0.905-0.931). AHtR cut-off values for obesity and overweight diagnosis at 0.16 and 0.145, respectively, were determined with excellent diagnostic accuracy (AUC ranged from 0.920 to 0.975). CONCLUSION: MUAC and AHtR were reliable tools to detect overweight and obesity in Thai school-age children. Cut-off points for MUAC were age and gender specific, while AHtR at 0.16 and 0.145 were the optimal values for both genders, independent of age. These anthropometric measurements showed excellent accuracy in predicting overweight and obesity with high specificity and sensitivity. PMID- 29018005 TI - The Clinical Presentation of Subcutaneous Phaeohyphomycosis: A Case Series from Yetebon, Ethiopia. AB - Subcutaneous phaeohyphomycosis is a chronic fungal infection usually found on the lower extremity and feet of agricultural workers in the tropics. It can present with various skin manifestations, verrucous to nodular plaques, and is caused by multiple species of fungi. Laboratory confirmation requires skin samples for pathology and fungal cultures. Cure, often difficult in resource-poor countries, requires months of antifungal therapy. We describe the cases of three men from Ethiopia who were seen and are being treated by American doctors who traveled there on a medical mission. PMID- 29018007 TI - Clinical Characteristics of the GLA N215S Variant and Implications for the Diagnosis and Management of Nonclassic Fabry Disease. PMID- 29018006 TI - alpha-Galactosidase A Genotype N215S Induces a Specific Cardiac Variant of Fabry Disease. AB - BACKGROUND: Hypertrophic cardiomyopathy is the most common type of cardiomyopathy, but many patients lack sarcomeric/myofilament mutations. We studied whether cardio-specific alpha-galactosidase A gene variants are misinterpreted as hypertrophic cardiomyopathy because of the lack of extracardiac organ involvement. METHODS AND RESULTS: All subjects who tested positive for the N215S genotype (n=26, 13 females, mean age 49+/-17 [range, 14-74] years) were characterized in this prospective monocentric longitudinal cohort study to determine genotype-specific clinical characteristics of the N215S (c.644A>G [p.Asn215Ser]) alpha-galactosidase A gene variant. All subjects were initially referred with suspicion of genetically determined hypertrophic cardiomyopathy. Cardiac hypertrophy (interventricular septum, 12+/-4 [7-23] mm; left ventricular posterior wall, 11+/-4 [7-21] mm; left ventricular mass, 86+/-41 [46-195] g/m2) was progressive, systolic function mainly preserved (cardiac index 2.8+/-0.6 [1.9 3.9] L/min per m2), and diastolic function mildly abnormal. Cardiac magnetic resonance imaging revealed replacement fibrosis in loco typico (18/26, 69%), particularly in subjects >50 years. Elderly subjects had advanced heart failure, and 6 (23%) were suggested for implantable cardioverter-defibrillator therapy. Leukocyte alpha-galactosidase A enzyme activity was mildly reduced in 19 subjects and lyso-globotriaosylceramide slightly elevated (median, 4.9; interquartile range, 1.3-9.1 ng/mL). Neurological and renal impairments (serum creatinine, 0.87+/-0.20; median, 0.80; interquartile range, 0.70-1.01 mg/dL; glomerular filtration rate, 102+/-23; median, 106; interquartile range, 84-113 mL/min) were discreet. Only 2 subjects developed clinically relevant proteinuria. CONCLUSIONS: alpha-Galactosidase A genotype N215S does not lead to the development of a classical Fabry phenotype but induces a specific cardiac variant of Fabry disease mimicking nonobstructive hypertrophic cardiomyopathy. The lack of prominent noncardiac impairment leads to a significant delay in diagnosis and Fabry specific therapy. PMID- 29018008 TI - Comparison of postoperative outcomes among patients treated by male and female surgeons: a population based matched cohort study. AB - Objective To examine the effect of surgeon sex on postoperative outcomes of patients undergoing common surgical procedures.Design Population based, retrospective, matched cohort study from 2007 to 2015.Setting Population based cohort of all patients treated in Ontario, Canada.Participants Patients undergoing one of 25 surgical procedures performed by a female surgeon were matched by patient age, patient sex, comorbidity, surgeon volume, surgeon age, and hospital to patients undergoing the same operation by a male surgeon.Interventions Sex of treating surgeon.Main outcome measure The primary outcome was a composite of death, readmission, and complications. We compared outcomes between groups using generalised estimating equations.Results 104 630 patients were treated by 3314 surgeons, 774 female and 2540 male. Before matching, patients treated by female doctors were more likely to be female and younger but had similar comorbidity, income, rurality, and year of surgery. After matching, the groups were comparable. Fewer patients treated by female surgeons died, were readmitted to hospital, or had complications within 30 days (5810 of 52 315, 11.1%, 95% confidence interval 10.9% to 11.4%) than those treated by male surgeons (6046 of 52 315, 11.6%, 11.3% to 11.8%; adjusted odds ratio 0.96, 0.92 to 0.99, P=0.02). Patients treated by female surgeons were less likely to die within 30 days (adjusted odds ratio 0.88; 0.79 to 0.99, P=0.04), but there was no significant difference in readmissions or complications. Stratified analyses by patient, physician, and hospital characteristics did not significant modify the effect of surgeon sex on outcome. A retrospective analysis showed no difference in outcomes by surgeon sex in patients who had emergency surgery, where patients do not usually choose their surgeon.Conclusions After accounting for patient, surgeon, and hospital characteristics, patients treated by female surgeons had a small but statistically significant decrease in 30 day mortality and similar surgical outcomes (length of stay, complications, and readmission), compared with those treated by male surgeons. These findings support the need for further examination of the surgical outcomes and mechanisms related to physicians and the underlying processes and patterns of care to improve mortality, complications, and readmissions for all patients. PMID- 29018009 TI - Paediatric case of ductal origin of right pulmonary artery presenting with exertional dyspnoea and mimicking asthma and primary ciliary dyskinesia. AB - Ductal origin of pulmonary artery is a rare anomaly that is frequently misdiagnosed. Patients may present with exertional dyspnoea, recurrent respiratory infections and pulmonary hypertension. The presence of pulmonary hypertension can adversely affect clinical outcome in these patients; hence, early identification and intervention is the key to improve survival. A case of a 3-year-old child presenting with exertional dyspnoea is presented in this report. Chest radiograph revealed right-sided pulmonary hypoplasia and mediastinal shift to the right. Pulmonary artery agenesis was suspected when CT of the chest demonstrated right-sided pulmonary artery agenesis. Cardiac catheterisation revealed the correct diagnosis of ductal origin of right pulmonary artery. The most striking feature of this case is that the clinical presentation is mild compared with the findings on imaging. PMID- 29018010 TI - Unusual complications from amitriptyline intoxication. AB - Althoughtricyclic antidepressants(TCAs) are frequently prescribed to patients with depression, these drugs can also be misused. A 21-year-old comatose patient was referred to our hospital presenting with ventricular tachycardia. Despite initial treatment including intravascular lipid emulsion, ventricular fibrillation occurred soon after arrival. Venoarterial extracorporeal membrane oxygenation and therapeutic hypothermia were administered. Refractory arrhythmia disappeared on the next day. A high concentration of amitriptyline was identified in his blood samples on arrival. Mechanical bowel obstruction followed after abdominal compartment syndrome caused by anticholinergic effects, and refractory seizure occurred due to TCA intoxication. Although seizure was brought under control with anticonvulsant agents, his Glasgow Coma Scale did not recover to the full score. MRI presented irreversible damage to the bilateral frontal lobe and insula. Amitriptyline has the potential to cause unusual serious complications, such as abdominal compartment syndrome, irreversible central nervous system disability and lethal arrhythmia. PMID- 29018011 TI - Balance versus hearing after cochlear implant in an adult. AB - The effect of vestibular rehabilitation (VR) on anxiety, dizziness and poor balance that developed after cochlear implant (CI) surgery is described. A 54 year-old woman, with profound hearing loss since the age of 2 years, underwent right CI surgery 2 years previously. On implant activation, the patient immediately felt dizziness and imbalance, which affected the ability to perform activities of daily living and increased anxiety to where the patient considered the CI removal. Prior to VR the patient was evaluated with the Dizziness Handicap Inventory and the Visual Vertigo Dizziness Questionnaire and clinically with the Zur Balance Scale and Video Head Impulse Test. The patient underwent 14 VR sessions over 4 months that included compensation, adaptation and habituation exercises. After VR the patient was able to maintain good balance while using the CI. Dizziness and anxiety improved dramatically. This report increases awareness that a CI could compromise balance, which can be overcome with personalised VR. PMID- 29018012 TI - Colonic gallstone ileus. AB - Gallstone ileus is a rare aetiology of bowel obstruction and very infrequently occurs in the colon. Typically, colonic gallstone ileus carries a high morbidity and mortality and requires surgery. This case report describes a cholecystocolonic fistula in a patient with ulcerative colitis with resulting colonic gallstone ileus, which was successfully intervened on via an endoscopic approach. PMID- 29018013 TI - Stroke resulting from an isolated pulmonary arteriovenous malformation. AB - Isolated pulmonary arteriovenous malformations (PAVM) are rare, but can be responsible for paradoxical embolic events. It is important to recognise these situations early and intervene quickly to attain the best outcome. We describe the case of a 45-year-old woman with a long-standing history of migraines with aura who presented to the emergency department with left-sided weakness and slurred speech. Work-up was unclear and she was diagnosed with cryptogenic stroke. Follow-up transoesophageal echocardiogram was suggestive of an atrial septal defect, though no clear defect was evident. Pulmonary angiography revealed an isolated PAVM arising from the right lower lung segmental artery with a 2 mm feeding artery leading into 3-4 mm of dysplastic vessel that connects to the vein. The vessel was embolised successfully using a combination of a 4 mm Amplatzer Vascular Plug in the distal feeding artery and a 4 mm Nester coil proximally. PMID- 29018014 TI - Elizabethkingia meningoseptica: emerging multidrug resistance in a nosocomial pathogen. AB - A 46-year-old male patient presented with complaints of burning micturition for 2 days. Initial history, physical examination and laboratory investigations were consistent with the diagnosis of congestive cardiac failure (CCF) and concomitant urinary tract infection. CCF was treated with diuretics and a urine culture/sensitivity (C/S) was sent which returned growing Elizabethkingia meningoseptica resistant to all tested drugs. Intravenous cefotaxime which had been started empirically 3 days earlier was withheld at this point, and a repeat urine C/S was sent revealing resistance to all tested drugs (including reserved drugs) barring minocycline. The patient was treated with oral minocycline for 14 days after which he was symptomatically better with sterile urine. The patient was subsequently discharged. PMID- 29018015 TI - Chronic red eye: a masquerade of advanced neoplastic disease. AB - A 42-year-old woman presented with chronic history of left red eye for more than 12 months, treated with difference topical medication but without response. Ocular external examination demonstrated a firm palpable mass in the medial portion of the lower eyelid and slit-lamp evaluation of the lesion showed an ulcerated conjunctival nodule, keratin secretor. CT of the orbits revealed left sided orbital mass located anteriorly, inferiorly and medially in the orbit, adjacent to the globe and orbit walls. Incisional biopsy of the lesion was consistent with invasive squamous cell carcinoma of the conjunctiva. As the tumour had no response to initial adjuvant systemic chemotherapy, exenteration of left orbit was performed due to advanced disease. PMID- 29018016 TI - Successful treatment of community-acquired methicillin-resistant Staphylococcus aureus purulent myopericarditis. AB - A previously healthy 48-year-old active duty man, who had been treated for an elbow abscess 3 weeks earlier, presented to an emergency department in Bahrain with tachycardia, pericardial friction rub and jugular venous distention. Cardiac tamponade was confirmed on transthoracic echocardiogram and he was taken for emergent pericardiocentesis. Pericardial fluid cultures grew community-acquired methicillin-resistant Staphylococcus aureus Despite ongoing treatment with intravenous vancomycin, he developed a recurrent fibrinous pericardial effusion and constrictive pericarditis requiring pericardiectomy. Though he initially did well postoperatively, he developed drug reaction with eosinophilia and systemic symptoms syndrome in response to vancomycin. He was transitioned to ceftaroline and started on high-dose steroids. He recovered during a week-long admission and was discharged home. Several weeks later at follow-up he was doing well and had resumed moderate intensity exercise. PMID- 29018017 TI - Radial nerve palsy due to supracondylar open fracture in a child. PMID- 29018018 TI - Acute pancreatitis as an unusual presentation of primary splenic lymphoma. AB - A 51-year-old man with no relevant medical history presents to the emergency department complaining of a recent worsening of few months upper abdominal pain with back radiation and postprandial fullness, without B symptoms. Laboratory analysis showed hyperamylasaemia, elevated lactate dehydrogenase and inflammatory parameters. Abdominal ultrasonography revealed a heterogeneous solid mass in the spleen/splenic hilum with pancreatic parenchyma continuity and no biliary tract dilation or gallstones. A mild acalculous acute pancreatitis diagnosis was made. Abdominopelvic CT revealed a large heterogeneous mass infiltrating the spleen and pancreas and obstructing the common bile duct at the pancreatic level with upstream dilation of biliary and pancreatic ducts, with splenic vein invasion. Several necrotic, peripancreatic and hepatic hilar adenopathies were also observed. Ultrasound-guided biopsy showed a primary splenic diffuse large B-cell non-Hodgkin's lymphoma. Chemotherapy with R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine and prednisolone) was performed with lack of response and the patient died within 10 months of diagnosis onset. PMID- 29018019 TI - There's no such thing as an unnecessary referral. PMID- 29018020 TI - Relation of Low-Density Lipoprotein Cholesterol With Microvascular Injury and Clinical Outcome in Revascularized ST-Elevation Myocardial Infarction. AB - BACKGROUND: Microvascular injury (MVI) after primary percutaneous coronary intervention for ST-elevation myocardial infarction (STEMI) is a major determinant of adverse clinical outcome. Experimental data indicate an impact of hypercholesterolemia on MVI; however, there is a lack of clinical studies confirming this relation. We aimed to investigate the association of cholesterol concentrations on admission with MVI visualized by cardiac magnetic resonance imaging and clinical outcome in STEMI patients treated by primary percutaneous coronary intervention. METHODS AND RESULTS: In this prospective, observational study, we included 235 consecutive revascularized STEMI patients. Cholesterol (total cholesterol, low-density lipoprotein [LDL], and high-density lipoprotein cholesterol) and triglyceride concentrations were determined at presentation. Cardiac magnetic resonance scans were performed 2 (2-4) days after infarction to assess infarct characteristics, including MVI. Clinical end point was the occurrence of major adverse cardiac events (MACE) comprising all-cause mortality, nonfatal reinfarction, and new congestive heart failure. Patients with MVI (n=129; 55%) showed higher levels of total cholesterol (204 [172-226] versus 185 [168-212] mg/dL; P=0.01) and LDL cholesterol (142 [113-166] versus 118 [103-149] mg/dL; P=0.001), whereas high-density lipoprotein cholesterol and triglycerides did not differ significantly. In multivariable analysis, including all significant clinical and cardiac magnetic resonance determinants of MVI, LDL concentration emerged as an independent predictor of MVI (odds ratio, 1.02 [95% confidence interval, 1.01-1.02]; P=0.002). Furthermore, increased LDL cholesterol (>150 mg/dL) significantly predicted the occurrence of major adverse cardiac events (hazard ratio, 3.09 [95% confidence interval, 1.22-7.87]; P=0.01). CONCLUSIONS: In STEMI patients undergoing primary percutaneous coronary intervention, baseline LDL cholesterol concentrations were independently associated with MVI, revealing a clinically relevant link between LDL metabolism and MVI in acute STEMI. PMID- 29018021 TI - Short Sleep Duration, Obstructive Sleep Apnea, Shiftwork, and the Risk of Adverse Cardiovascular Events in Patients After an Acute Coronary Syndrome. AB - BACKGROUND: It is unknown whether short sleep duration, obstructive sleep apnea, and overnight shift work are associated with the risk of recurrent cardiovascular events in patients after an acute coronary syndrome. METHODS AND RESULTS: SOLID TIMI 52 (The Stabilization of PLaques UsIng Darapladib-Thrombolysis in Myocardial Infarction 52 Trial) was a multinational, double-blind, placebo-controlled trial that enrolled 13 026 patients <=30 days of acute coronary syndrome. At baseline, all patients were to complete the Berlin questionnaire to assess risk of obstructive sleep apnea and a sleep and shift work survey. Median follow-up was 2.5 years. The primary outcome was major coronary events (MCE; coronary heart disease death, myocardial infarction, or urgent revascularization). Cox models were adjusted for clinical predictors. Patients who reported <6 hours sleep per night had a 29% higher risk of MCE (adjusted hazard ratio, 1.29; 95% confidence interval, 1.12-1.49; P<0.001) compared with those with longer sleep. Patients who screened positive for obstructive sleep apnea had a 12% higher risk of MCE (1.12; 1.00-1.24; P=0.04) than those who did not screen positive. Overnight shift work (>=3 night shifts/week for >=1 year) was associated with a 15% higher risk of MCE (1.15; 1.03-1.29; P=0.01). A step-wise increase in cardiovascular risk was observed for individuals with more than 1 sleep-related risk factor. Individuals with all 3 sleep-related risk factors had a 2-fold higher risk of MCE (2.01; 1.49 2.71; P<0.0001). CONCLUSIONS: Short sleep duration, obstructive sleep apnea, and overnight shift work are under-recognized as predictors of adverse outcomes after acute coronary syndrome. Increased efforts should be made to identify, treat, and educate patients about the importance of sleep for the potential prevention of cardiovascular events. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT01000727. PMID- 29018022 TI - Higher Adiposity Is Associated With Slower Cognitive Decline in Hypertensive Patients: Secondary Analysis of the China Stroke Primary Prevention Trial. AB - BACKGROUND: Obesity is a risk factor for many diseases. However, the potential association between adiposity and cognitive decline in hypertensive patients is inconclusive. We performed a secondary data analysis of the CSPPT (China Stroke Primary Prevention Trial) to examine whether adiposity is correlated with longitudinal cognitive performance in hypertensive adults. METHODS AND RESULTS: The analysis included 16 791 patients in the CSPPT who received at least 2 cognitive assessments by the Mini-Mental State Examination (MMSE) during the follow-up (median, 4.5 years; interquartile range, 4.2-4.8 years). Outcomes included changes in MMSE scores and cognitive impairment (defined as MMSE score less than education-specific cutoff point). A marked reduction in MMSE scores at the final (compared with at the 1-year) follow-up was apparent in both men (n=4838; mean [SD] score, 0.41 [3.62]) and women (n=7190; mean [SD] score, 1.07 [4.61]; both P<0.001). Analysis using a mixed-effects model revealed an association between higher body mass index with less MMSE decline, even after controlling for demographics and comorbidities (men, beta=0.0134 [SE, 0.0036]; women, beta=0.0133 [SE, 0.0034]; both P<0.001). A total of 1037 men (15.3%) and 3317 women (33.1%) developed cognitive impairment. In multivariable Cox regression analyses, being obese in men (11.3% versus 18.0%; hazard ratio, 0.75; 95% confidence interval, 0.60-0.94) and women (30.1% versus 36.5%; hazard ratio, 0.82; 95% confidence interval, 0.74-0.91) was a protective factor against cognitive impairment compared with normal body mass index. CONCLUSIONS: Higher adiposity is independently associated with slower cognitive decline in Chinese hypertensive adults. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00794885 CSPPT. PMID- 29018024 TI - Circulatory Dynamics During Pulmonary Vein Isolation Using the Second-Generation Cryoballoon. AB - BACKGROUND: Circulatory dynamics change during pulmonary vein (PV) isolation using cryoballoons. This study sought to investigate the circulatory dynamics during cryoballoon-based PV isolation procedures and the contributing factors. METHODS AND RESULTS: This study retrospectively included 35 atrial fibrillation patients who underwent PV isolation with 28-mm second-generation cryoballoons and single 3-minute freeze techniques. Blood pressures were continuously monitored via arterial lines. The left ventricular function was evaluated with intracardiac echocardiography throughout the procedure in 5 additional patients. Overall, 126 cryoapplications without interrupting freezing were analyzed. Systolic blood pressure (SBP) significantly increased during freezing (138.7+/-28.0 to 148.0+/ 27.2 mm Hg, P<0.001) and sharply dropped (136.3+/-26.0 to 95.0+/-17.9 mm Hg, P<0.001) during a mean of 21.0+/-8.0 seconds after releasing the occlusion during thawing. In the multivariate analyses, the left PVs (P=0.008) and lower baseline SBP (P<0.001) correlated with a larger SBP rise, whereas a higher baseline SBP (P<0.001), left PVs (P=0.017), lower balloon nadir temperature (P=0.027), and female sex (P=0.045) correlated with larger SBP drops. These changes were similarly observed regardless of preprocedural atropine administration and the target PV order. PV occlusions without freezing exhibited no SBP change. PV antrum freezing without occlusions similarly increased the SBP, but the SBP drop was significantly smaller than that with occlusions (P<0.001). The SBP drop time course paralleled the left ventricular ejection fraction increase (66.8+/-8.1% to 79.3+/-6.7%, P<0.001) and systemic vascular resistance index decrease (2667+/ 1024 to 1937+/-513 dynes-sec/cm2 per m2, P=0.002). CONCLUSIONS: With second generation cryoballoon-based PV isolation, SBP significantly increased during freezing owing to atrial tissue freezing and dropped sharply after releasing the occlusion, presumably because of the peripheral vascular resistance decrease mainly by circulating chilled blood. PMID- 29018023 TI - Mortality and Disability According to Baseline Blood Pressure in Acute Ischemic Stroke Patients Treated by Thrombectomy: A Collaborative Pooled Analysis. AB - BACKGROUND: High blood pressure (BP) is associated with worse clinical outcomes in the setting of acute ischemic stroke, but the optimal blood pressure target is still a matter of debate. We aimed to study the association between baseline BP and mortality in acute ischemic stroke patients treated by mechanical thrombectomy. METHODS AND RESULTS: A total of 1332 acute ischemic stroke patients treated by mechanical thrombectomy were enrolled (from January 2012 to June 2016) in the ETIS (Endovascular Treatment in Ischemic Stroke) registry. Linear and polynomial logistic regression models were used to assess the association between BP and mortality and functional outcome at 90 days. Highest mortality was found at lower and higher baseline systolic blood pressure (SBP) values following a J- or U-shaped relationship, with a nadir at 157 mm Hg (95% confidence interval 143 170). When SBP values were categorized in 10-mm Hg increments, the odds ratio for all-cause mortality was 3.78 (95% confidence interval 1.50-9.55) for SBP<110 mm Hg and 1.81 (95% confidence interval 1.01-3.36) for SBP>=180 mm Hg using SBP>=150 to 160 mm Hg as reference. The rate of favorable outcome was the highest at low SBP values and lowest at high SBP values, with a nonlinear relationship; in unplanned exploratory analysis, an optimal threshold SBP>=177 mm Hg was found to predict unfavorable outcome (adjusted odds ratio 0.47; 95% confidence interval 0.31-0.70). CONCLUSION: In acute ischemic stroke patients treated by mechanical thrombectomy, baseline SBP is associated with all-cause mortality and favorable outcome. In contrast to mortality, favorable outcome rate was the highest at low SBP values and lowest at high SBP values. Further studies are warranted to confirm these findings. PMID- 29018025 TI - Peptidyl-Prolyl Isomerase 1 Regulates Ca2+ Handling by Modulating Sarco(Endo)Plasmic Reticulum Calcium ATPase and Na2+/Ca2+ Exchanger 1 Protein Levels and Function. AB - BACKGROUND: Aberrant Ca2+ handling is a prominent feature of heart failure. Elucidation of the molecular mechanisms responsible for aberrant Ca2+ handling is essential for the development of strategies to blunt pathological changes in calcium dynamics. The peptidyl-prolyl cis-trans isomerase peptidyl-prolyl isomerase 1 (Pin1) is a critical mediator of myocardial hypertrophy development and cardiac progenitor cell cycle. However, the influence of Pin1 on calcium cycling regulation has not been explored. On the basis of these findings, the aim of this study is to define Pin1 as a novel modulator of Ca2+ handling, with implications for improving myocardial contractility and potential for ameliorating development of heart failure. METHODS AND RESULTS: Pin1 gene deletion or pharmacological inhibition delays cytosolic Ca2+ decay in isolated cardiomyocytes. Paradoxically, reduced Pin1 activity correlates with increased sarco(endo)plasmic reticulum calcium ATPase (SERCA2a) and Na2+/Ca2+ exchanger 1 protein levels. However, SERCA2a ATPase activity and calcium reuptake were reduced in sarcoplasmic reticulum membranes isolated from Pin1-deficient hearts, suggesting that Pin1 influences SERCA2a function. SERCA2a and Na2+/Ca2+ exchanger 1 associated with Pin1, as revealed by proximity ligation assay in myocardial tissue sections, indicating that regulation of Ca2+ handling within cardiomyocytes is likely influenced through Pin1 interaction with SERCA2a and Na2+/Ca2+ exchanger 1 proteins. CONCLUSIONS: Pin1 serves as a modulator of SERCA2a and Na2+/Ca2+ exchanger 1 Ca2+ handling proteins, with loss of function resulting in impaired cardiomyocyte relaxation, setting the stage for subsequent investigations to assess Pin1 dysregulation and modulation in the progression of heart failure. PMID- 29018028 TI - Steroid Profiling for Adrenocortical Disorders: A Pathway for Omics-Based Diagnostics. PMID- 29018029 TI - New Therapies for Treating Hepatitis C Virus: Impact on Laboratory Testing Recommendations and Clinical Management. PMID- 29018026 TI - Inflammation and Aortic Stiffness: An Individual Participant Data Meta-Analysis in Patients With Inflammatory Bowel Disease. AB - BACKGROUND: The recent finding that aortic pulse wave velocity (aPWV) is increased in patients with inflammatory bowel disease may explain why the cardiovascular risk is increased despite the low prevalence of traditional cardiovascular risk factors. We aimed to test whether inflammation is associated with aortic stiffening in this setting after adjustment for major confounders and to perform subgroup analyses. METHODS AND RESULTS: A systematic literature search for aPWV in inflammatory bowel disease was performed using PubMed, Scopus, Web of Science, and Google Scholar databases (last accessed May 7, 2017). Inclusion criterion was peer-reviewed publications on clinical studies reporting original data. This study followed the Preferred Reporting Items for Systematic Review and Meta-Analyses of individual participant data 2015 guidelines. Data were provided for 4 cohorts in 3 countries (151 participants with ulcerative colitis, 159 with Crohn's disease, and 227 control patients). Using aPWV, cohort-specific z scores were calculated after loge-transform and combined in meta-analysis to form pooled effects using a random-effects model. Compared with controls, aPWV was increased in patients with Crohn's disease (mean difference 0.78 z score; 95% confidence interval, 0.56-1.00 z score [P<0.001]) and ulcerative colitis (mean difference 0.75 z score; 95% confidence interval, 0.52-0.97 z score [P<0.001]). In an outlier-robust multivariate linear regression model adjusted for prespecified confounders, aPWV was associated with disease duration (years, beta=0.05 z score; 95% confidence interval, 0.02-0.08 z score [P<0.001]) and white blood cell count (billion cells/L, beta=0.07 z score; 95% confidence interval, 0.02-0.11 z score [P=0.002]) but not with markers of acute inflammation (C-reactive protein and erythrocyte sedimentation rate), cardiovascular risk factors, and therapy. CONCLUSIONS: The increased aPWV reported in patients with inflammatory bowel disease is associated with inflammation. CLINICAL TRIAL REGISTRATION: URL: http://www.crd.york.ac.uk. Unique identifier: PROSPERO 2016: CRD42016053070. PMID- 29018030 TI - General practice threatens to withhold repeat prescriptions until patients have flu vaccine. PMID- 29018031 TI - #ILookLikeASurgeon: embracing diversity to improve patient outcomes. PMID- 29018027 TI - Abdominal Aortic Calcifications Influences the Systemic and Renal Hemodynamic Response to Renal Denervation in the DENERHTN (Renal Denervation for Hypertension) Trial. AB - BACKGROUND: The DENERHTN (Renal Denervation for Hypertension) trial confirmed the efficacy of renal denervation (RDN) in lowering daytime ambulatory systolic blood pressure when added to standardized stepped-care antihypertensive treatment (SSAHT) for resistant hypertension at 6 months. METHODS AND RESULTS: This post hoc exploratory analysis assessed the impact of abdominal aortic calcifications (AAC) on the hemodynamic and renal response to RDN at 6 months. In total, 106 patients with resistant hypertension were randomly assigned to RDN plus SSAHT or to the same SSAHT alone (control group). Total AAC volume was measured, with semiautomatic software and blind to randomization, from the aortic hiatus to the iliac bifurcation using the prerandomization noncontrast abdominal computed tomography scans of 90 patients. Measurements were expressed as tertiles. The baseline-adjusted difference in the change in daytime ambulatory systolic blood pressure from baseline to 6 months between the RDN and control groups was -10.1 mm Hg (P=0.0462) in the lowest tertile and -2.5 mm Hg (P=0.4987) in the 2 highest tertiles of AAC volume. Estimated glomerular filtration rate remained stable at 6 months for the patients in the lowest tertile of AAC volume who underwent RDN (+2.5 mL/min per 1.73 m2) but decreased in the control group (-8.0 mL/min per 1.73 m2, P=0.0148). In the 2 highest tertiles of AAC volume, estimated glomerular filtration rate decreased similarly in the RDN and control groups (P=0.2640). CONCLUSIONS: RDN plus SSAHT resulted in a larger decrease in daytime ambulatory systolic blood pressure than SSAHT alone in patients with a lower AAC burden than in those with a higher AAC burden. This larger decrease in daytime ambulatory systolic blood pressure was not associated with a decrease in estimated glomerular filtration rate. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT01570777. PMID- 29018032 TI - N-Acetyltransferase 2 Genotype-Dependent N-Acetylation of Hydralazine in Human Hepatocytes. AB - Hydralazine is used in the treatment of essential hypertension and is under investigation for epigenetic therapy in the treatment of neoplastic and renal diseases. N-acetyltransferase (NAT) 2 exhibits a common genetic polymorphism in human populations. After recombinant expression in yeast, human NAT2 exhibited an apparent Lineweaver-Burk constant (K-m) value (20.1 +/- 8.8 MUM) for hydralazine over 20-fold lower than the apparent K-m value (456 +/- 57 MUM) for recombinant human NAT1 (P = 0.0016). The apparent Vmax value for recombinant human NAT1 (72.2 +/- 17.9 nmol acetylated/min/mg protein) was significantly (P = 0.0245) lower than recombinant human NAT2 (153 +/- 15 nmol acetylated/min/mg protein), reflecting 50-fold higher clearance for recombinant human NAT2. Hydralazine NAT activities exhibited a robust acetylator gene dose response in cryopreserved human hepatocytes both in vitro and in situ. Hydralazine NAT activities in vitro differed significantly with respect to NAT2 genotype at 1000 (P = 0.0319), 100 (P = 0.002), and 10 MUM hydralazine (P = 0.0029). Hydralazine NAT activities differed significantly (P < 0.001) among slow acetylator hepatocytes, (NAT2*5B/*5B > NAT2*5B/*6A > NAT2*6A/*6A). The in situ hydralazine N-acetylation rates differed significantly with respect to NAT2 genotype after incubation with 10 (P = 0.002) or 100 uM (P = 0.0015) hydralazine and were higher after incubation with 100 MUM (10-fold) than with 10 MUM (4.5-fold) hydralazine. Our results clearly document NAT2 genotype-dependent N-acetylation of hydralazine in human hepatocytes, suggesting that hydralazine efficacy and safety could be improved by NAT2 genotype-dependent dosing strategies. PMID- 29018033 TI - Expression and Functional Characterization of Breast Cancer-Associated Cytochrome P450 4Z1 in Saccharomyces cerevisiae. AB - CYP4Z1 is an "orphan" cytochrome P450 (P450) enzyme that has provoked interest because of its hypothesized role in breast cancer through formation of the signaling molecule 20-hydroxyeicosatetraenoic acid (20-HETE). We expressed human CYP4Z1 in Saccharomyces cerevisiae and evaluated its catalytic capabilities toward arachidonic and lauric acids (AA and LA). Specific and sensitive mass spectrometry assays enabled discrimination of the regioselectivity of hydroxylation of these two fatty acids. CYP4Z1 generated 7-, 8-, 9-, 10-, and 11 hydroxy LA, whereas the 12-hydroxy metabolite was not detected. HET0016, the prototypic CYP4 inhibitor, only weakly inhibited laurate metabolite formation (IC50 ~15 MUM). CYP4Z1 preferentially oxidized AA to the 14(S),15(R)-epoxide with high regioselectivity and stereoselectivity, a reaction that was also insensitive to HET0016, but neither 20-HETE nor 20-carboxy-AA were detectable metabolites. Docking of LA and AA into a CYP4Z1 homology model was consistent with this preference for internal fatty acid oxidation. Thus, human CYP4Z1 has an inhibitor profile and product regioselectivity distinct from most other CYP4 enzymes, consistent with CYP4Z1's lack of a covalently linked heme. These data suggest that, if CYP4Z1 modulates breast cancer progression, it does so by a mechanism other than direct production of 20-HETE. PMID- 29018036 TI - CCND2 Overexpression Enhances the Regenerative Potency of Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes: Remuscularization of Injured Ventricle. AB - RATIONALE: The effectiveness of transplanted, human induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) for treatment of ischemic myocardial injury is limited by the exceptionally low engraftment rate. OBJECTIVE: To determine whether overexpression of the cell cycle activator CCND2 (cyclin D2) in hiPSC-CMs can increase the graft size and improve myocardial recovery in a mouse model of myocardial infarction by increasing the proliferation of grafted cells. METHODS AND RESULTS: Human CCND2 was delivered to hiPSCs via lentiviral-mediated gene transfection. In cultured cells, markers for cell cycle activation and proliferation were ~3- to 7-folds higher in CCND2-overexpressing hiPSC-CMs (hiPSC CCND2OECMs) than in hiPSC-CMs with normal levels of CCND2 (hiPSC-CCND2WTCMs; P<0.01). The pluripotent genes (Oct 4, Sox2, and Nanog) decrease to minimal levels and undetectable levels at day 1 and 10 after differentiating to CMs. In the mouse myocardial infarction model, cardiac function, infarct size, and the number of engrafted cells were similar at week 1 after treatment with hiPSC CCND2OECMs or hiPSC-CCND2WTCMs but was about tripled in hiPSC-CCND2OECM-treated than in hiPSC-CCND2WTCM-treated animals at week 4 (P<0.01). The cardiac function and infarct size were significantly better in both cell treatment groups' hearts than in control hearts, which was most prominent in hiPSC-CCND2OECM-treated animals (P<0.05, each). No tumor formation was observed in any hearts. CONCLUSIONS: CCND2 overexpression activates cell cycle progression in hiPSC-CMs that results in a significant enhanced potency for myocardial repair as evidenced by remuscularization of injured myocardium. This left ventricular muscle regeneration and increased angiogenesis in border zone are accompanied by a significant improvement of left ventricular chamber function. PMID- 29018035 TI - Trials and Tribulations of CETP Inhibitors. AB - The development of CETP (cholesteryl ester transfer protein) inhibitors has had a long and difficult course with 3 compounds failing in phase III clinical trials. Finally, the REVEAL (Randomized Evaluation of the Effects of Anacetrapib through Lipid modification) trial has shown that the CETP inhibitor anacetrapib decreased coronary heart disease when added to statin therapy. Although the result is different to earlier studies, this is likely related to the size and duration of the trial. The benefit of anacetrapib seems to be largely explained by lowering of non-HDL-C (high-density lipoprotein cholesterol), rather than increases in HDL C. Although the magnitude of benefit for coronary heart disease appeared to be moderate, in part this may have reflected aspects of the trial design. Anacetrapib treatment was associated with a small increase in blood pressure, but was devoid of major side effects and was also associated with a small reduction in diabetes mellitus. Treatment with CETP inhibitors, either alone or in combination with statins, could provide another option for patients with coronary disease who require further reduction in LDL (low-density lipoprotein) and non HDL-C. PMID- 29018034 TI - Distinct Cellular Basis for Early Cardiac Arrhythmias, the Cardinal Manifestation of Arrhythmogenic Cardiomyopathy, and the Skin Phenotype of Cardiocutaneous Syndromes. AB - RATIONALE: Arrhythmogenic cardiomyopathy is caused primarily by mutations in genes encoding desmosome proteins. Ventricular arrhythmias are the cardinal and typically early manifestations, whereas myocardial fibroadiposis is the pathological hallmark. Homozygous DSP (desmoplakin) and JUP (junction protein plakoglobin) mutations are responsible for a subset of patients with arrhythmogenic cardiomyopathy who exhibit cardiac arrhythmias and dysfunction, palmoplanter keratosis, and hair abnormalities (cardiocutaneous syndromes). OBJECTIVE: To determine phenotypic consequences of deletion of Dsp in a subset of cells common to the heart and skin. METHODS AND RESULTS: Expression of CSPG4 (chondroitin sulfate proteoglycan 4) was detected in epidermal keratinocytes and the cardiac conduction system. CSPG4pos cells constituted ~5.6+/-3.3% of the nonmyocyte cells in the mouse heart. Inducible postnatal deletion of Dsp under the transcriptional control of the Cspg4 locus led to ventricular arrhythmias, atrial fibrillation, atrioventricular conduction defects, and death by 4 months of age. Cardiac arrhythmias occurred early and in the absence of cardiac dysfunction and excess cardiac fibroadipocytes, as in human arrhythmogenic cardiomyopathy. The mice exhibited palmoplantar keratosis and progressive alopecia, leading to alopecia totalis, associated with accelerated proliferation and impaired terminal differentiation of keratinocytes. The phenotype is similar to human cardiocutaneous syndromes caused by homozygous mutations in DSP. CONCLUSIONS: Deletion of Dsp under the transcriptional regulation of the CSPG4 locus led to lethal cardiac arrhythmias in the absence of cardiac dysfunction or fibroadiposis, palmoplantar keratosis, and alopecia, resembling the human cardiocutaneous syndromes. The findings offer a cellular basis for early cardiac arrhythmias in patients with arrhythmogenic cardiomyopathy and cardiocutaneous syndromes. PMID- 29018039 TI - The ocean lifeguard drowning prevention paradigm: how and where do lifeguards intervene in the drowning process? AB - Drowning is a global health problem that can be addressed with multiple strategies including utilisation of lifeguards in recreational swim areas. However, few studies have described lifeguard prevention activities. We conducted a retrospective analysis using lifeguard activity data collected in real time with a Computer-Aided-Dispatch (CAD) system to characterise the nature of lifeguard primary and secondary drowning prevention at a popular ocean beach in California. Preventative actions constituted the majority (232 065/423 071; 54.8%) of lifeguard activities, while rescues represented 1.9%. Most preventative actions and rescues occurred during summer months, weekends and afternoons. Statistically significant geographical clusters of preventative actions were identified all over the beach, while rescue clusters were primarily restricted to two sites. Using the most reliable and valid collection system to date, these data show spatial and temporal patterns for ocean lifeguard provision of primary prevention as well as secondary drowning prevention (rescue). PMID- 29018037 TI - Chromatin remodeler CHD1 promotes XPC-to-TFIIH handover of nucleosomal UV lesions in nucleotide excision repair. AB - Ultraviolet (UV) light induces mutagenic cyclobutane pyrimidine dimers (CPDs) in nucleosomal DNA that is tightly wrapped around histone octamers. How global genome nucleotide excision repair (GG-NER) processes CPDs despite that this chromatin arrangement is poorly understood. An increased chromatin association of CHD1 (chromodomain helicase DNA-binding 1) upon UV irradiation indicated possible roles of this chromatin remodeler in the UV damage response. Immunoprecipitation of chromatin fragments revealed that CHD1 co-localizes in part with GG-NER factors. Chromatin fractionation showed that the UV-dependent recruitment of CHD1 occurs to UV lesions in histone-assembled nucleosomal DNA and that this CHD1 relocation requires the lesion sensor XPC (xeroderma pigmentosum group C). In situ immunofluorescence analyses further demonstrate that CHD1 facilitates substrate handover from XPC to the downstream TFIIH (transcription factor IIH). Consequently, CHD1 depletion slows down CPD excision and sensitizes cells to UV induced cytotoxicity. The finding of a CHD1-driven lesion handover between sequentially acting GG-NER factors on nucleosomal histone octamers suggests that chromatin provides a recognition scaffold enabling the detection of a subset of CPDs. PMID- 29018038 TI - Increased localization of APP-C99 in mitochondria-associated ER membranes causes mitochondrial dysfunction in Alzheimer disease. AB - In the amyloidogenic pathway associated with Alzheimer disease (AD), the amyloid precursor protein (APP) is cleaved by beta-secretase to generate a 99-aa C terminal fragment (C99) that is then cleaved by gamma-secretase to generate the beta-amyloid (Abeta) found in senile plaques. In previous reports, we and others have shown that gamma-secretase activity is enriched in mitochondria-associated endoplasmic reticulum (ER) membranes (MAM) and that ER-mitochondrial connectivity and MAM function are upregulated in AD We now show that C99, in addition to its localization in endosomes, can also be found in MAM, where it is normally processed rapidly by gamma-secretase. In cell models of AD, however, the concentration of unprocessed C99 increases in MAM regions, resulting in elevated sphingolipid turnover and an altered lipid composition of both MAM and mitochondrial membranes. In turn, this change in mitochondrial membrane composition interferes with the proper assembly and activity of mitochondrial respiratory supercomplexes, thereby likely contributing to the bioenergetic defects characteristic of AD. PMID- 29018040 TI - Effectiveness of child restraints and booster legislation in Israel. AB - INTRODUCTION: 96 countries in the world have enacted child restraints and booster legislation (CRBL). Yet, findings regarding the effectiveness of CRBLs are mixed. The current study is the first to examine the association between Israel's CRBL, implemented in November 2004, and the traffic injury and fatality rates among children aged 0-9 years. We extend on previous studies by accounting for risk exposure and by comparing populations of children affected by the legislation to those who were not. METHODS: We used an interrupted time series design of kilometre driven-based traffic injury rates for children aged 0-4 years and children aged 5-9 years using childred aged 10-14 years as a comparison group. We estimated the effects of Israel's CRBL using monthly injury and fatality count data from the Israeli Central Bureau of Statistics. The sample includes all child vehicle occupants injured and killed in crashes in Israel between January 2003 and December 2011. RESULTS: Children aged 0-4 years experienced a 5.17% yearly reduction in traffic injury rate (incidence rate ratio (IRR): 0.94(95% CI 0.92 to 0.96); p=0.000), and the injury rate for children aged 5-9 years was associated with a 4.10% yearly reduction (IRR: 0.95(95% CI 0.93 to 0.98); p=0.001). The comprehensive CRBL implemented in Israel was associated with a 6.3% (95% CI -7.2% to5.5%; p=0.001) reduction in traffic injuries and fatalities for children aged 0 9 years. CONCLUSION: This is the first study comparing traffic injury rates per kilometre driven for motor vehicle-occupant children before and after the implementation of the CRBL in Israel. PMID- 29018041 TI - Spontaneous Breathing Trials and Conservative Sedation Practices Reduce Mechanical Ventilation Duration in Subjects With ARDS. AB - BACKGROUND: Spontaneous breathing trials (SBTs) and daily sedation interruptions (DSIs) reduce both the duration of mechanical ventilation and ICU length of stay (LOS). The impact of these practices in patients with ARDS has not previously been reported. We examined whether implementation of SBT/DSI protocols reduce duration of mechanical ventilation and ICU LOS in a retrospective group of subjects with ARDS at a large, urban, level-1 trauma center. METHODS: All ARDS survivors from 2002 to 2016 (N = 1,053) were partitioned into 2 groups: 397 in the pre-SBT/DSI group (June 2002-December 2007) and 656 in the post-SBT/DSI group (January 2009-April 2016). Patients from 2008, during the protocol implementation period, were excluded. An additional SBT protocol database (2008-2010) was used to assess the efficacy of SBT in transitioning subjects with ARDS to unassisted breathing. Comparisons were assessed by either unpaired t tests or Mann-Whitney tests. Multiple comparisons were made using either one-way analysis of variance or Kruskal-Wallis and Dunn's tests. Linear regression modeling was used to determine variables independently associated with mechanical ventilation duration and ICU LOS; differences were considered statistically significant when P < .05. RESULTS: Compared to the pre-protocol group, subjects with ARDS managed with SBT/DSI protocols experienced pronounced reductions both in median (IQR) mechanical ventilation duration (14 [6-29] vs 9 [4-17] d, respectively, P < .001) and median ICU LOS (18 [8-33] vs 13 [7-22] d, respectively P < .001). In the final model, only treatment in the SBT/DSI period and higher baseline respiratory system compliance were independently associated with reduced mechanical ventilation duration and ICU LOS. Among subjects with ARDS in the SBT performance database, most achieved unassisted breathing with a median of 2 SBTs. CONCLUSION: Evidenced-based protocols governing weaning and sedation practices were associated with both reduced mechanical ventilation duration and ICU LOS in subjects with ARDS. However, higher respiratory system compliance in the SBT/DSI cohort also contributed to these improved outcomes. PMID- 29018043 TI - Educational Added Value Unit: Development and Testing of a Measure for Educational Activities. AB - OBJECTIVES: University-based hospitalists educate health care professionals as an expectation, often lacking time and support for these activities. The purpose of this study was to (1) develop a tracking tool to record educational activities, (2) demonstrate its applicability and ease of completion for faculty members in different divisions, and (3) compare educational efforts of individuals from different professional pathways and divisions by using the educational added value unit (EAVU). METHODS: Educational activities were selected and ranked according to preparation effort, presentation time, and impact to calculate the EAVU. Faculty participants from 5 divisions at 1 institution (hospital medicine, general and community pediatrics, emergency medicine, behavior medicine and clinical psychology, and biostatistics and epidemiology) completed the retrospective, self-report tracking tool. RESULTS: A total of 62% (74 of 119) of invited faculty members participated. All faculty earned some EAVUs; however, there was a wide distribution range. The median EAVU varied by division (hospital medicine [21.7], general and community pediatrics [20.6], emergency medicine [26.1], behavior medicine and clinical psychology [18.3], and biostatistics and epidemiology [8.2]). Faculty on the educator pathway had a higher median EAVU compared with clinical or research pathways. CONCLUSIONS: The EAVU tracking tool holds promise as a mechanism to track educational activities of different faculty pathways. EAVU collection could be of particular benefit to hospitalists, who often perform unsupported teaching activities. Additional studies are needed to determine how to apply a similar process in different institutions and to determine how EAVUs could be used for additional support for teaching, curriculum development, and educational scholarship. PMID- 29018042 TI - GWAS on prolonged gestation (post-term birth): analysis of successive Finnish birth cohorts. AB - BACKGROUND: Gestation is a crucial timepoint in human development. Deviation from a term gestational age correlates with both acute and long-term adverse health effects for the child. Both being born preterm and post-term, that is, having short and long gestational ages, are heritable and influenced by the prenatal and perinatal environment. Despite the obvious heritable component, specific genetic influences underlying differences in gestational age are poorly understood. METHODS: We investigated the genetic architecture of gestational age in 9141 individuals, including 1167 born post-term, across two Northern Finland cohorts born in 1966 or 1986. RESULTS: Here we identify one globally significant intronic genetic variant within the ADAMTS13 gene that is associated with prolonged gestation (p=4.85*10-8). Additional variants that reached suggestive levels of significance were identified within introns at the ARGHAP42 and TKT genes, and in the upstream (5') intergenic regions of the B3GALT5 and SSBP2 genes. The variants near the ADAMTS13, B3GALT5, SSBP2 and TKT loci are linked to alterations in gene expression levels (cis-eQTLs). Luciferase assays confirmed the allele specific enhancer activity for the BGALT5 and TKT loci. CONCLUSIONS: Our findings provide the first evidence of a specific genetic influence associated with prolonged gestation. This study forms a foundation for a better understanding of the genetic and long-term health risks faced by induced and post-term individuals. The long-term risks for induced individuals who have a previously overlooked post term potential may be a major issue for current health providers. PMID- 29018044 TI - Rnf43. AB - RNF43 (E3 ubiquitin-protein ligase RNF43 or RING-type E3 ubiquitin transferase RNF43) functions as a tumor suppressor, by exerting a predominant negative feedback mechanism in the Wnt/beta-catenin signaling pathway. RNF43 inhibits Wnt/beta-catenin signaling by ubiquitinating Frizzled receptor and targeting it to the lysosomal pathway for degradation. Loss of function of RNF43 results in decrease/lack of degradation of Frizzled with enhancement of Wnt/beta-catenin signaling pathway. Mutations of RNF43 have been reported in different cancers. We describe the structure of RNF43, its function and most frequent mutations in different cancers. PMID- 29018047 TI - Type 1 Diabetes and Celiac Disease: Causal Association or True, True, Unrelated? PMID- 29018045 TI - PTEN drives Th17 cell differentiation by preventing IL-2 production. AB - T helper 17 (Th17) cells are a CD4+ T cell subset that produces IL-17A to mediate inflammation and autoimmunity. IL-2 inhibits Th17 cell differentiation. However, the mechanism by which IL-2 is suppressed during Th17 cell differentiation remains unclear. Here, we show that phosphatase and tensin homologue (PTEN) is a key factor that regulates Th17 cell differentiation by suppressing IL-2 production. Th17-specific Pten deletion (Ptenfl/flIl17acre ) impairs Th17 cell differentiation in vitro and ameliorated symptoms of experimental autoimmune encephalomyelitis (EAE), a model of Th17-mediated autoimmune disease. Mechanistically, Pten deficiency up-regulates IL-2 and phosphorylation of STAT5, but reduces STAT3 phosphorylation, thereby inhibiting Th17 cell differentiation. PTEN inhibitors block Th17 cell differentiation in vitro and in the EAE model. Thus, PTEN plays a key role in Th17 cell differentiation by blocking IL-2 expression. PMID- 29018048 TI - How to "ENGAGE" Multilevel Learner Groups in the Clinical Setting. PMID- 29018049 TI - Statins in venous thrombosis: more evidence, more basic science findings. PMID- 29018050 TI - Jumping the Barrier: Modeling Drug Penetration across the Blood-Brain Barrier. AB - Determining the penetration of drugs across the blood-brain barrier is a significant challenge in central nervous system drug development. The use of a mechanistic physiologically based pharmacokinetic model can predict drug exposures in the brain without needing in situ drug measurements. Clin Cancer Res; 23(24); 7437-9. (c)2017 AACRSee related article by Li et al., p. 7454. PMID- 29018051 TI - Phase III HEAT Study Adding Lyso-Thermosensitive Liposomal Doxorubicin to Radiofrequency Ablation in Patients with Unresectable Hepatocellular Carcinoma Lesions. AB - Purpose: Lyso-thermosensitive liposomal doxorubicin (LTLD) consists of doxorubicin contained within a heat-sensitive liposome. When heated to >=40 degrees C, LTLD locally releases a high concentration of doxorubicin. We aimed to determine whether adding LTLD improves the efficacy of radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC) lesions with a maximum diameter (dmax) of 3 to 7 cm.Experimental Design: The HEAT Study was a randomized, double-blind, dummy-controlled trial of RFA +/- LTLD. The 701 enrolled patients had to have <=4 unresectable HCC lesions, at least one of which had a dmax of 3 to 7 cm. The primary endpoint was progression-free survival (PFS) and a key secondary endpoint was overall survival (OS). Post hoc subset analyses investigated whether RFA duration was associated with efficacy.Results: The primary endpoint was not met; in intention-to-treat analysis, the PFS HR of RFA + LTLD versus RFA alone was 0.96 [95% confidence interval (CI), 0.79-1.18; P = 0.71], and the OS HR ratio was 0.95 (95% CI, 0.76-1.20; P = 0.67). Among 285 patients with a solitary HCC lesion who received >=45 minutes RFA dwell time, the OS HR was 0.63 (95% CI, 0.41-0.96; P < 0.05) in favor of combination therapy. RFA + LTLD had reversible myelosuppression similar to free doxorubicin.Conclusions: Adding LTLD to RFA was safe but did not increase PFS or OS in the overall study population. However, consistent with LTLD's heat-based mechanism of action, subgroup analysis suggested that RFA + LTLD efficacy is improved when RFA dwell time for a solitary lesion >=45 minutes. Clin Cancer Res; 24(1); 73-83. (c)2017 AACR. PMID- 29018052 TI - Intratumoral HPV16-Specific T Cells Constitute a Type I-Oriented Tumor Microenvironment to Improve Survival in HPV16-Driven Oropharyngeal Cancer. AB - Purpose: Human papillomavirus (HPV)-associated oropharyngeal squamous cell cancer (OPSCC) has a much better prognosis than HPV-negative OPSCC, and this is linked to dense tumor immune infiltration. As the viral antigens may trigger potent immunity, we studied the relationship between the presence of intratumoral HPV specific T-cell responses, the immune contexture in the tumor microenvironment, and clinical outcome.Experimental Design: To this purpose, an in-depth analysis of tumor-infiltrating immune cells in a prospective cohort of 97 patients with HPV16-positive and HPV16-negative OPSCC was performed using functional T-cell assays, mass cytometry (CyTOF), flow cytometry, and fluorescent immunostaining of tumor tissues. Key findings were validated in a cohort of 75 patients with HPV16 positive OPSCC present in the publicly available The Cancer Genome Atlas database.Results: In 64% of the HPV16-positive tumors, type I HPV16-specific T cells were present. Their presence was not only strongly related to a better overall survival, a smaller tumor size, and less lymph node metastases but also to a type I-oriented tumor microenvironment, including high numbers of activated CD161+ T cells, CD103+ tissue-resident T cells, dendritic cells (DC), and DC-like macrophages.Conclusions: The viral antigens trigger a tumor-specific T-cell response that shapes a favorable immune contexture for the response to standard therapy. Hence, reinforcement of HPV16-specific T-cell reactivity is expected to boost this process. Clin Cancer Res; 24(3); 634-47. (c)2017 AACRSee related commentary by Laban and Hoffmann, p. 505. PMID- 29018046 TI - Co-occurrence of Type 1 Diabetes and Celiac Disease Autoimmunity. AB - BACKGROUND AND OBJECTIVES: Few birth cohorts have prospectively followed development of type 1 diabetes (T1D) and celiac disease (CD) autoimmunities to determine timing, extent of co-occurrence, and associated genetic and demographic factors. METHODS: In this prospective birth cohort study, 8676 children at high genetic risk of both diseases were enrolled and 5891 analyzed in median follow-up of 66 months. Along with demographic factors and HLA-DR-DQ, genotypes for HLA DPB1 and 5 non-HLA loci conferring risk of both T1D and CD were analyzed. RESULTS: Development of persistent islet autoantibodies (IAs) and tissue transglutaminase autoantibodies (tTGAs), as well as each clinical disease, was evaluated quarterly from 3 to 48 months of age and semiannually thereafter. IAs alone appeared in 367, tTGAs alone in 808, and both in 90 children. Co-occurrence significantly exceeded the expected rate. IAs usually, but not always, appeared earlier than tTGAs. IAs preceding tTGAs was associated with increasing risk of tTGAs (hazard ratio [HR]: 1.48; 95% confidence interval [CI]: 1.15-1.91). After adjusting for country, sex, family history, and all other genetic loci, significantly greater co-occurrence was observed in children with a T1D family history (HR: 2.80), HLA-DR3/4 (HR: 1.94) and single-nucleotide polymorphism rs3184504 at SH2B3 (HR: 1.53). However, observed co-occurrence was not fully accounted for by all analyzed factors. CONCLUSIONS: In early childhood, T1D autoimmunity usually precedes CD autoimmunity. Preceding IAs significantly increases the risk of subsequent tTGAs. Co-occurrence is greater than explained by demographic factors and extensive genetic risk loci, indicating that shared environmental or pathophysiological mechanisms may contribute to the increased risk. PMID- 29018053 TI - Fluorescein-Guided Surgery for Resection of High-Grade Gliomas: A Multicentric Prospective Phase II Study (FLUOGLIO). AB - Purpose: Sodium fluorescein is a dye that, intravenously injected, selectively accumulates in high-grade glioma (HGG) tissue through a damaged blood-brain barrier. In this article, the final results of a multicentric prospective phase II trial (FLUOGLIO) on fluorescein-guided HGG resection through a dedicated filter on the surgical microscope were reported.Methods: Patients with suspected HGGs considered suitable for removal were eligible to participate in this trial. Fluorescein was intravenously injected at a dose of 5 to 10 mg/kg. The primary endpoint was the percentage of patients with histologically confirmed HGGs, without contrast-enhancing tumor at the immediate postoperative MRI. Secondary endpoints were PFS, residual tumor on postoperative MRI, overall survival, neurologic deficits, and fluorescein-related toxicity. The sensitivity and specificity of fluorescein in identifying tumor tissue were estimated by fluorescent and nonfluorescent biopsies at the tumor margin. The study was registered on the European Regulatory Authorities website (EudraCT 2011-002527 18).Results: Fifty-seven patients aged 45 to 75 years were screened for participation, and 46 were considered for primary and secondary endpoints. Mean preoperative tumor volume was 28.75 cm3 (range, 1.3-87.8 cm3). Thirty-eight patients (82.6%) underwent a complete tumor removal. Median follow-up was 11 months. PFS-6 and PFS-12 were 56.6% and 15.2%. Median survival was 12 months. No adverse reaction related to SF administration was recorded. The sensitivity and specificity of fluorescein in identifying tumor tissue were respectively 80.8% and 79.1%.Conclusions: Fluorescein-guided technique with a dedicated filter on the surgical microscope is safe and enables a high percentage of contrast enhancing tumor in patients with HGGs. Clin Cancer Res; 24(1); 52-61. (c)2017 AACR. PMID- 29018054 TI - The induction of myeloma cell death and DNA damage by tetrac, a thyroid hormone derivative. AB - Multiple myeloma (MM) is a plasma cell malignancy in which involvement of the thyroid hormone-integrin alphavbeta3 pathway was shown, and pharmacologic inhibition of this pathway is a rational approach to disease management. A thyroid hormone derivative, tetraiodothyroacetic acid (tetrac), which inhibits l thyroxine (T4) and 3,5,3'-triiodo-l-thyronine (T3) binding to alphavbeta3 integrin, was studied in five MM cell lines and primary bone marrow (BM) MM cells. Tetrac inhibited MM cell proliferation (absolute cell number/viability) and induced caspase-dependent apoptosis (annexin-V/PI and cell cycle). Activation of caspase-9 and caspase-3 was further demonstrated. Moreover, DNA damage markers, ataxia-telangiectasia-mutated (ATM) kinase, poly ADP-ribose polymerase (PARP-1) and histone gammaH2AX were induced by tetrac. The various tetrac initiated effects were attenuated by Arg-Gly-Asp (RGD) peptide, suggesting integrin involvement. Primary BM mononuclear cells were harvested from MM patients (n = 39) at various disease stages. Tetrac-induced apoptosis (12/17 samples) and sensitized the cytotoxic action of bortezomib (6/9 samples). Lastly, expression of plasma membrane integrin alphavbeta3 was shown not only in the malignant plasma clone, but also in other cell populations within the BM samples (n = 25). Tetrac is anti-proliferative and pro-apoptotic in MM and cells may offer a therapeutic approach for this disease. PMID- 29018055 TI - Dose-response effects of exercise on insulin among colon cancer survivors. AB - Physical activity is associated with a lower risk of disease recurrence among colon cancer survivors. The pathways through which physical activity may alter disease outcomes are unknown, but may include changes in metabolic growth factors, such as insulin. Between January 2015 and August 2015, 39 stage I-III colon cancer survivors were randomized to one of the three groups: usual care control, 150 min/week of aerobic exercise (low-dose) and 300 min/week of aerobic exercise (high-dose) for six months. The pre-specified key metabolic growth factor outcome was fasting insulin. Insulin resistance was quantified using the homeostatic model assessment. Mean age was 56.5 +/- 10.0 years, 51% had stage III disease, 72% were treated with chemotherapy and the mean time since finishing treatment was 10.9 +/- 6.1 months. Over six months, the low-dose group completed 141.5 +/- 9.9 min/week of aerobic exercise, and the high-dose group completed 247.2 +/- 10.7 min/week of aerobic exercise. Fasting insulin concentrations decreased 7.4 +/- 9.4 pmol/L in the control group, 28.0 +/- 8.3 pmol/L in the low dose group and 20.7 +/- 9.3 pmol/L in the high-dose group (nonlinear Ptrend = 0.042). Insulin resistance decreased 0.11 +/- 0.20 in the control group, 0.63 +/- 0.17 in the low-dose group and 0.43 +/- 0.19 in the high-dose group (nonlinear Ptrend = 0.012). Aerobic exercise reduces insulin concentrations and insulin resistance among patients with stage I-III colon cancer. Prescribing 150 min/week of aerobic exercise may be sufficient for reducing insulin concentrations and insulin resistance, which may partially mediate the relationship between physical activity and colon cancer prognosis. PMID- 29018058 TI - Impact of an inpatient electronic prescribing system on prescribing error causation: a qualitative evaluation in an English hospital. AB - BACKGROUND: Few studies have applied a systems approach to understanding the causes of specific prescribing errors in the context of hospital electronic prescribing (EP). A comprehensive understanding of underlying causes is essential for developing effective interventions to improve prescribing safety. Our objectives were to explore prescribers' perspectives of the causes of errors occurring with EP and to make recommendations to maximise benefits and minimise risks. METHODS: We studied a large hospital using inpatient EP. From April to June 2016, semistructured interviews were conducted with purposively sampled prescribers involved with a prescribing error. Interviews explored prescribers' perceived causes of the error and views about EP; they were audio-recorded and transcribed verbatim. Data were thematically analysed against a framework based on Reason's accident causation model, with a focus on identifying latent conditions. RESULTS: Twenty-five interviews explored causes of 32 errors. Slips and rule-based mistakes were the most common active failures. Error causation was multifactorial; environmental, individual, team, task and technology error producing conditions were all influenced by EP. There were three broad groups of latent conditions: the EP system's functionality and design; the organisation's decisions around EP implementation and use; and prescribing behaviours in the context of EP. CONCLUSIONS: Errors were associated with the design of EP itself and its integration within the healthcare environment. Findings suggest that EP vendors should focus on revolutionising interface design and usability issues, bearing in mind the wider healthcare context in which such software is used. Healthcare organisations should draw upon human factors principles when implementing EP. Consideration of work environment, infrastructure, training, prescribing responsibilities and behaviours should be considered to address local issues identified. PMID- 29018056 TI - Functional Genomics Approach Identifies Novel Signaling Regulators of TGFalpha Ectodomain Shedding. AB - Ectodomain shedding of cell-surface precursor proteins by metalloproteases generates important cellular signaling molecules. Of importance for disease is the release of ligands that activate the EGFR, such as TGFalpha, which is mostly carried out by ADAM17 [a member of the A-disintegrin and metalloprotease (ADAM) domain family]. EGFR ligand shedding has been linked to many diseases, in particular cancer development, growth and metastasis, as well as resistance to cancer therapeutics. Excessive EGFR ligand release can outcompete therapeutic EGFR inhibition or the inhibition of other growth factor pathways by providing bypass signaling via EGFR activation. Drugging metalloproteases directly have failed clinically because it indiscriminately affected shedding of numerous substrates. It is therefore essential to identify regulators for EGFR ligand cleavage. Here, integration of a functional shRNA genomic screen, computational network analysis, and dedicated validation tests succeeded in identifying several key signaling pathways as novel regulators of TGFalpha shedding in cancer cells. Most notably, a cluster of genes with NFkappaB pathway regulatory functions was found to strongly influence TGFalpha release, albeit independent of their NFkappaB regulatory functions. Inflammatory regulators thus also govern cancer cell growth-promoting ectodomain cleavage, lending mechanistic understanding to the well-known connection between inflammation and cancer.Implications: Using genomic screens and network analysis, this study defines targets that regulate ectodomain shedding and suggests new treatment opportunities for EGFR-driven cancers. Mol Cancer Res; 16(1); 147-61. (c)2017 AACR. PMID- 29018059 TI - Involvement of leptin in the molecular physiology of the placenta. AB - Leptin is a homeostatic regulator in the placenta where it promotes proliferation, protein synthesis and the expression of tolerogenic maternal response molecules such as HLA-G. Leptin also exerts an anti-apoptotic action in placenta controlling the expression of p53 master cell cycle regulator under different stress conditions. On the other hand, leptin is an integrative target of different placental stimuli. The expression of leptin in placenta is regulated by hCG, insulin, steroids, hypoxia and many other growth hormones, suggesting that it might have an important endocrine function in the trophoblastic cells. The leptin expression is induced involving the cAMP/PKA or cAMP/Epac pathways which have profound actions upon human trophoblast function. The activation of PI3K and MAPK pathways also participates in the leptin expression. Estrogens play a central role during pregnancy, particularly 17beta-estradiol upregulates the leptin expression in placental cells through genomic and non-genomic actions. The leptin promoter analysis reveals specific elements that are active in placental cells. The transcription factors CREB, AP1, Sp1, NFkappaB and the coactivator CBP are involved in the placental leptin expression. Moreover, placental leptin promoter is a target of epigenetic marks such as DNA methylation and histone acetylation that regulates not only the leptin expression in placenta during pregnancy but also determines the predisposition of acquiring adult metabolism diseases. Taken together, all these results allow a better understanding of leptin function and regulatory mechanisms of leptin expression in human placental trophoblasts, and support the importance of leptin during pregnancy and in programming adult health. PMID- 29018057 TI - PD-1 Blockade Prevents the Development and Progression of Carcinogen-Induced Oral Premalignant Lesions. AB - Oral squamous cell carcinoma (OSCC) is preceded by progressive oral premalignant lesions (OPL). Therefore, therapeutic strategies that prevent malignant progression of OPLs are expected to reduce the incidence of OSCC development. Immune checkpoint inhibitors that target the interaction of programmed death receptor 1 (PD-1) on T cells with the PD-1 ligand PD-L1 on cancer cells have been shown to extend the survival of patients with advanced OSCC. Here, we used the 4 nitroquinoline-1-oxide (4-NQO) mouse model of oral carcinogenesis to test the hypothesis that PD-1 blockade may control the progression of OPLs. Mice were exposed to 4-NQO in their drinking water and then randomly assigned to two treatment groups that received either a blocking antibody for PD-1 or a control IgG. We found that anti-PD-1 treatment significantly reduced the number of oral lesions that developed in these mice and prevented malignant progression. Low grade dysplastic lesions responded to PD-1 blockade with a significant increase in the recruitment of CD8+ and CD4+ T cells and the accumulation of CTLA-4+ T cells in their microenvironment. Notably, PD-1 inhibition was accompanied by induction of IFNgamma, STAT1 activation and the production of the T-cell effector granzyme B in infiltrating cells, and by the induction of apoptosis in the epithelial cells of the oral lesions, suggesting that T-cell activation mediates the immunopreventive effects of anti-PD-1. These results support the potential clinical benefit of PD-1 immune checkpoint blockade to prevent OSCC development and progression and suggest that CTLA-4 inhibitors may enhance the preventive effects of anti-PD-1. Cancer Prev Res; 10(12); 684-93. (c)2017 AACRSee related editorial by Gutkind et al., p. 681. PMID- 29018061 TI - Association between MRI-defined osteoarthritis, pain, function and strength 3-10 years following knee joint injury in youth sport. AB - BACKGROUND: Youth and young adults who participate in sport have an increased risk of knee injury and subsequent osteoarthritis. Improved understanding of the relationship between structural and clinical outcomes postinjury could inform targeted osteoarthritis prevention interventions. This secondary analysis examines the association between MRI-defined osteoarthritis and self-reported and functional outcomes, 3-10 years following youth sport-related knee injury in comparison to healthy controls. METHODS: Participants included a subsample (n=146) of the Alberta Youth Prevention of Early Osteoarthritis cohort: specifically, 73 individuals with 3-10years history of sport-related intra articular knee injury and 73 age-matched, sex-matched and sport-matched controls with completed MRI studies. Outcomes included: MRI-defined osteoarthritis, radiographic osteoarthritis, Knee Injury and Osteoarthritis Outcome Score, Intermittent and Constant Osteoarthritis Pain, knee extensor/flexor strength, triple-hop and Y-balance test. Descriptive statistics and univariate logistic regression were used to compare those with and without MRI-defined osteoarthritis. Associations between MRI-defined osteoarthritis and each outcome were assessed using multivariable linear regression considering the influence of injury history, sex, body mass index and time since injury. RESULTS: Participant median age was 23 years (range 15-27), and 63% were female. MRI-defined osteoarthritis varied by injury history, injury type and surgical history and was not isolated to participants with ACL and/or meniscal injuries. Those with a previous knee injury had 10-fold (95% CI 2.3 to 42.8) greater odds of MRI-defined osteoarthritis than uninjured participants. MRI-defined osteoarthritis was independently significantly associated with quality of life, but not symptoms, strength or function. SUMMARY: MRI-detected structural changes 3- 10 years following youth sport-related knee injury may not dictate clinical symptomatology, strength or function but may influence quality of life. PMID- 29018060 TI - Dietary supplements for treating osteoarthritis: a systematic review and meta analysis. AB - OBJECTIVE: To investigate the efficacy and safety of dietary supplements for patients with osteoarthritis. DESIGN: An intervention systematic review with random effects meta-analysis and meta-regression. DATA SOURCES: MEDLINE, EMBASE, Cochrane Register of Controlled Trials, Allied and Complementary Medicine and Cumulative Index to Nursing and Allied Health Literature were searched from inception to April 2017. STUDY ELIGIBILITY CRITERIA: Randomised controlled trials comparing oral supplements with placebo for hand, hip or knee osteoarthritis. RESULTS: Of 20 supplements investigated in 69 eligible studies, 7 (collagen hydrolysate, passion fruit peel extract, Curcuma longa extract, Boswellia serrata extract, curcumin, pycnogenol and L-carnitine) demonstrated large (effect size >0.80) and clinically important effects for pain reduction at short term. Another six (undenatured type II collagen, avocado soybean unsaponifiables, methylsulfonylmethane, diacerein, glucosamine and chondroitin) revealed statistically significant improvements on pain, but were of unclear clinical importance. Only green-lipped mussel extract and undenatured type II collagen had clinically important effects on pain at medium term. No supplements were identified with clinically important effects on pain reduction at long term. Similar results were found for physical function. Chondroitin demonstrated statistically significant, but not clinically important structural improvement (effect size -0.30, -0.42 to -0.17). There were no differences between supplements and placebo for safety outcomes, except for diacerein. The Grading of Recommendations Assessment, Development and Evaluation suggested a wide range of quality evidence from very low to high. CONCLUSIONS: The overall analysis including all trials showed that supplements provided moderate and clinically meaningful treatment effects on pain and function in patients with hand, hip or knee osteoarthritis at short term, although the quality of evidence was very low. Some supplements with a limited number of studies and participants suggested large treatment effects, while widely used supplements such as glucosamine and chondroitin were either ineffective or showed small and arguably clinically unimportant treatment effects. Supplements had no clinically important effects on pain and function at medium-term and long-term follow-ups. PMID- 29018062 TI - Gastrointestinal symptoms in elite athletes: time to recognise the problem? PMID- 29018063 TI - Scapular dyskinesis and shoulder pain: the devil is in the detail. PMID- 29018065 TI - Prevalence and associated factors of active smoking among individuals living with hypertension and/or diabetes in Africa: a systematic review and meta-analysis protocol. AB - INTRODUCTION: Tobacco use significantly increases cardiovascular complications in people living with hypertension and/or diabetes. We aim to summarise data on the prevalence and factors associated with active smoking in these conditions in Africa. METHOD AND ANALYSIS: We will search PubMed, Embase, Google Scholar and African Journals Online for relevant abstracts of studies on active smoking in individuals living with diabetes and/or hypertension published from 1 January 2000 to 31 December 2016, with no language restriction. Additionally, relevant unpublished papers and conference proceedings will be checked, as well as references of included articles. Two investigators will independently screen, select studies, extract data and assess the risk of bias in each study. Data will be analysed using Stata software (Stata V.14, Texas, USA). The study-specific estimates will be pooled through a random-effects meta-analysis model to obtain an overall summary estimate of the prevalence of smoking across studies. Also, we will assess factors associated to smoking. Heterogeneity of studies will be evaluated by the chi2 test on Cochrane's Q statistic. Funnel plots analysis and Egger's test will be done to detect publication bias. Results will be presented by geographic region (central, eastern, northern, southern and western Africa). A p value less than 0.05 will be considered significant for factors associated to smoking. ETHICS AND DISSEMINATION: This study is based on published data, and therefore ethical approval is not a requirement. This systematic review and meta analysis is expected to serve as a basis for designing cost-effective interventions to reduce and prevent smoking in patients with diabetes and/or hypertension, and as a guide for future research based on the remaining gaps. The final report of this study in the form of a scientific paper will be published in peer-reviewed journals. Findings will further be presented at conferences and submitted to relevant health authorities. PMID- 29018066 TI - Pilot study for the registry of complications in rheumatic diseases from the German Society of Surgery (DGORh): evaluation of methods and data from the first 1000 patients. AB - OBJECTIVE: Most patients suffering with rheumatic diseases who undergo surgical treatment are receiving immune-modulating therapy. To determine whether these medications affect their outcomes a national registry was established in Germany by the German Society of Surgery (DGORh). Data from the first 1000 patients were used in a pilot study to identify relevant corisk factors and to determine whether such a registry is suitable for developing accurate and relevant recommendations. DESIGN AND PARTICIPANTS: Data were collected from patients undergoing surgical treatments with their written consent. A second consent form was used, if complications occurred. During this pilot study, in order to obtain a quicker overview, risk factors were considered only in patients with complications. Only descriptive statistical analysis was employed in this pilot study due to limited number of observed complications and inhomogeneous data regarding the surgery and the medications the patients received. Analytical statistics will be performed to confirm the results in a future outcome study. RESULTS: Complications occurred in 26 patients and were distributed equally among the different types of surgeries. Twenty one of these patients were receiving immune-modulating therapy at the time, while five were not. Infections were observed in 2.3% of patients receiving and in 5.1% not receiving immunosuppression. CONCLUSIONS: Due to the low number of cases, inhomogeneity in the diseases and the treatments received by the patients in this pilot study, it is not possible to develop standardised best-practice recommendations to optimise their care. Based on this observation we conclude that in order to be suitable to develop accurate and relevant recommendations a national registry must include the most important and relevant variables that impact the care and outcomes of these patients. PMID- 29018064 TI - Psychoeducational intervention for people at high risk of developing another melanoma: a pilot randomised controlled trial. AB - INTRODUCTION: Information and psychological needs have been reported as one of the greatest areas of unmet needs for patients with melanoma. To respond to these needs, we developed the Melanoma Care Intervention, a developed psychoeducational intervention for people at high risk of developing another melanoma comprising of a newly developed melanoma educational booklet and individually tailored telephone support sessions provided by trained psychologists. The purpose of this study was to investigate the acceptability and feasibility of the Melanoma Care Intervention. METHODS: Twenty-four adults (14 men, 10 women, mean age: 58 years, SD: 12.2) at high risk of developing a subsequent primary melanoma were recruited and randomly assigned 1:1 to the intervention (a psychoeducational booklet, a Cancer Council booklet on melanoma and up to five telephone-based sessions with a psychologist) or usual care (Cancer Council booklet only). Acceptability, feasibility, fear of cancer recurrence and secondary psychosocial outcomes were assessed at baseline, 1 and 6 months. RESULTS: Satisfaction and perceived benefits were rated highly for all intervention components, particularly the telephone-based psychology sessions (mean satisfaction and benefits: both 9.27 out of 10, SD=2.41). The quality of information and support provided throughout the trial was rated as 'high' by the intervention group, with a mean score of 4.6 out of a possible 5 (SD=0.9) and 4.2 (SD=1.2) for the control group. CONCLUSIONS: The intervention was feasible and acceptable for improving psychological adjustment. Timely access to effective, evidence-based, psychological care is a recognised need for people with melanoma. The intervention is designed to directly address this need in a way that is feasible in a clinical setting, acceptable to patients and health professionals. TRIAL REGISTRATION NUMBER: The trial was registered with the Australian and New Zealand Clinical Trials Registry on 19/03/2013 (Registration Number: ACTRN12613000304730). PMID- 29018067 TI - Post-abortion care with misoprostol - equally effective, safe and accepted when administered by midwives compared to physicians: a randomised controlled equivalence trial in a low-resource setting in Kenya. AB - OBJECTIVE: To assess the effectiveness of midwives administering misoprostol to women with incomplete abortion seeking post-abortion care (PAC), compared with physicians. DESIGN: A multicentre randomised controlled equivalence trial. The study was not masked. SETTINGS: Gynaecological departments in two hospitals in a low-resource setting, Kenya. POPULATION: Women (n=1094) with incomplete abortion in the first trimester, seeking PAC between 1 June 2013 to 31 May 2016. Participants were randomly assigned to receive treatment from midwives or physicians. 409 and 401 women in the midwife and physician groups, respectively, were included in the per-protocol analysis. INTERVENTIONS: 600 ug misoprostol orally, and contraceptive counselling by a physician or midwife. MAIN OUTCOME MEASURES: Complete abortion not needing surgical intervention within 7-10 days. The main outcome was analysed on the per-protocol population with a generalised estimating equation model. The predefined equivalence range was -4% to 4%. Secondary outcomes were analysed descriptively. RESULTS: The proportion of complete abortion was 94.8% (768/810): 390 (95.4%) in the midwife group and 378 (94.3%) in the physician group. The proportion of incomplete abortion was 5.2% (42/810), similarly distributed between midwives and physicians. The model-based risk difference for midwives versus physicians was 1.0% (-4.1 to 2.2). Most women felt safe (97%; 779/799), and 93% (748/801) perceived the treatment as expected/easier than expected. After contraceptive counselling the uptake of a contraceptive method after 7-10 days occurred in 76% (613/810). No serious adverse events were recorded. CONCLUSIONS: Treatment of incomplete abortion with misoprostol provided by midwives is equally effective, safe and accepted by women as when administered by physicians in a low-resource setting. Systematically provided contraceptive counselling in PAC is effective to mitigate unmet need for contraception. TRIAL REGISTRATION NUMBER: NCT01865136; Results. PMID- 29018068 TI - Epidemiology of venous thromboembolism in Africa: a systematic review and meta analysis protocol. AB - INTRODUCTION: Venous thromboembolism (VTE) is among the three major causes of cardiovascular diseases worldwide after ischaemic heart disease and stroke. Knowledge on the global epidemiology of this condition is deficient in Africa. Accurate data are needed to evaluate the burden of VTE in Africa to design effective preventive and treatment strategies. This systematic review and meta analysis aims to summarise epidemiological data on VTE in Africa and to evaluate the use of prophylaxis in African patients at risk of VTE. METHODS AND ANALYSIS: Medline, Embase, Scopus and African Journal Online will be searched for relevant abstracts of studies published between 1 January 1986 and 5 December 2016, without language restriction. After a screening of abstracts, study selection, data extraction and assessment of the risk of bias, we shall assess studies individually for clinical and statistical heterogeneity. Appropriate meta analytic technics will then be used to pool studies judged to be clinically homogeneous. Funnel-plots analysis and Egger's test will be used to detect publication bias. Results will be presented by geographical region (Central, Eastern, Northern, Southern and Western Africa). This systematic review will be reported according to the Meta-analysis of Observational Studies in Epidemiology Guidelines. ETHICS AND DISSEMINATION: The current study will be based on published data, and thus ethics consideration is not required. This review is expected to provide relevant data to help in quantifying the magnitude of this disease in Africa. The final report of this study will be published in a peer reviewed journal and the findings will be submitted to relevant health authorities. TRIAL REGISTRATION NUMBER: The protocol for this review has been published in the International Prospective Register of systematic reviews (http://www.crd.york.ac.uk/PROSPERO), registration number: PROSPERO CRD42017056253. PMID- 29018071 TI - Effects of family planning factors on the awareness of sexual and reproductive healthcare rights among married women of reproductive age in China: a cross sectional study. AB - OBJECTIVES: Although family planning in China has changed gradually since 1994, there are few studies about family planning and women's reproductive rights. The main objective of this study was to examine awareness of sexual and reproductive healthcare rights (SRHCRs), and learn how factors related to family planning influence awareness of SRHCRs among married women of reproductive age in China. METHODS AND PARTICIPANTS: Inner Mongolia, Chongqing, Guangdong and Henan were selected for the study, and a total of 2504 married women of reproductive age were recruited. A self-administered anonymous questionnaire was used to collect information on participants' awareness of SRHCRs. RESULTS: There were a total of 10 843 (<=6*2504) responses, with a response rate of 72.17% (10 843/15 024) on average among participants regarding SRHCRs (a multiple response set). The highest response rate was for choice (Right 3) (90.64%, 95% CI 89.47%, 91.81%), followed by privacy (Right 5) (86.11%, 95% CI 84.72%, 87.50%) and information (Right 1) (84.47%, 95% CI 83.02%, 85.93%). Only 43.39% (95% CI 41.40%, 45.38%) of participants gave responses to safety (Right 4). Participants without children showed more interest in Right 1, in access (Right 2) and in Right 4. Those who utilised tests for fetal sex determination paid more attention to Rights 2 and 4. Women who accepted informed choice were more likely to be aware of all six rights except for Right 3 and dignity (Right 6). Those individuals who were satisfied or very satisfied with comprehensive sexual and reproductive health counselling services were more likely to show interest in all six rights. CONCLUSIONS: Awareness of SRHCRs among reproductive aged women in China is still inadequate. Family planning service providers might strengthen the service awareness of sex and reproductive health rights according to the different needs of women. PMID- 29018069 TI - Using comprehensive geriatric assessment for quality improvements in healthcare of older people in UK care homes: protocol for realist review within Proactive Healthcare of Older People in Care Homes (PEACH) study. AB - INTRODUCTION: Care home residents are relatively high users of healthcare resources and may have complex needs. Comprehensive geriatric assessment (CGA) may benefit care home residents and improve efficiency of care delivery. This is an approach to care in which there is a thorough multidisciplinary assessment (physical and mental health, functioning and physical and social environments) and a care plan based on this assessment, usually delivered by a multidisciplinary team. The CGA process is known to improve outcomes for community-dwelling older people and those in receipt of hospital care, but less is known about its efficacy in care home residents. METHODS AND ANALYSIS: Realist review was selected as the most appropriate method to explore the complex nature of the care home setting and multidisciplinary delivery of care. The aim of the realist review is to identify and characterise a programme theory that underpins the CGA intervention. The realist review will extract data from research articles which describe the causal mechanisms through which the practice of CGA generates outcomes. The focus of the intervention is care homes, and the outcomes of interest are health-related quality of life and satisfaction with services; for both residents and staff. Further outcomes may include appropriate use of National Health Service services and resources of older care home residents. The review will proceed through three stages: (1) identifying the candidate programme theories that underpin CGA through interviews with key stakeholders, systematic search of the peer-reviewed and non-peer-reviewed evidence, (2) identifying the evidence relevant to CGA in UK care homes and refining the programme theories through refining and iterating the systematic search, lateral searches and seeking further information from study authors and (3) analysis and synthesis of evidence, involving the testing of the programme theories. ETHICS AND DISSEMINATION: The PEACH project was identified as service development following submission to the UK Health Research Authority and subsequent review by the University of Nottingham Research Ethics Committee. The study protocols have been reviewed as part of good governance by the Nottinghamshire Healthcare Foundation Trust. We aim to publish this realist review in a peer-reviewed journal with international readership. We will disseminate findings to public and stakeholders using knowledge mobilisation techniques. Stakeholders will include the Quality Improvement Collaboratives within PEACH study. National networks, such as British Society of Gerontology and National Care Association will be approached for wider dissemination. TRIAL REGISTRATION NUMBER: The realist review has been registered on International Prospective Register of Systematic Reviews (PROSPERO 2017: CRD42017062601). PMID- 29018070 TI - Hypothermic oxygenated machine perfusion (HOPE) for orthotopic liver transplantation of human liver allografts from extended criteria donors (ECD) in donation after brain death (DBD): a prospective multicentre randomised controlled trial (HOPE ECD-DBD). AB - INTRODUCTION: Orthotopic liver transplantation (OLT) has emerged as the mainstay of treatment for end-stage liver disease. In an attempt to improve the availability of donor allografts and reduce waiting list mortality, graft acceptance criteria were extended increasingly over the decades. The use of extended criteria donor (ECD) allografts is associated with a higher incidence of primary graft non-function and/or delayed graft function. As such, several strategies have been developed aiming at reconditioning poor quality ECD liver allografts. Hypothermic oxygenated machine perfusion (HOPE) has been successfully tested in preclinical experiments and in few clinical series of donation after cardiac death OLT. METHODS AND ANALYSIS: HOPE ECD-DBD is an investigator initiated, open-label, phase-II, prospective multicentre randomised controlled trial on the effects of HOPE on ECD allografts in donation after brain death (DBD) OLT. Human whole organ liver grafts will be submitted to 1-2 hours of HOPE (n=23) via the portal vein before implantation and are going to be compared with a control group (n=23) of patients transplanted after conventional cold storage. Primary (peak and Delta peak alanine aminotransferase within 7 days) and secondary (aspartate aminotransferase, bilirubin and international normalised ratio, postoperative complications, early allograft dysfunction, duration of hospital and intensive care unit stay, 1-year patient and graft survival) endpoints will be analysed within a 12-month follow-up. Extent of ischaemia reperfusion (I/R) injury will be assessed using liver tissue, perfusate, bile and serum samples taken during the perioperative phase of OLT. ETHICS AND DISSEMINATION: The study was approved by the institutional review board of the RWTH Aachen University, Aachen, Germany (EK 049/17). The current paper represent the pre-results phase. First results are expected in 2018. TRIAL REGISTRATION NUMBER: NCT03124641. PMID- 29018072 TI - Association between home visiting interventions and First Nations families' health and social outcomes in Manitoba, Canada: protocol for a study of linked population-based administrative data. AB - INTRODUCTION: First Nations people are descendants of Canada's original inhabitants. In consequence of historical and ongoing structural injustices, many First Nations families struggle with challenging living conditions, including high rates of poverty, poor housing conditions, mental illness and social isolation. These risk factors impede caregivers' abilities to meet their children's basic physical and psychosocial needs. Home visiting programmes were developed to support child developmental health in families facing parenting challenges. However, whether home visiting is an effective intervention for First Nations families has not been examined. We are evaluating two home visiting programmes in Manitoba, Canada, to determine whether they promote nurturing family environments for First Nations children. METHODS AND ANALYSIS: This research builds on new and established relationships among academic researchers, government decision-makers and First Nations stakeholders. We will link health, education and social services data from the Manitoba Population Research Data Repository to data from two home visiting programmes in Manitoba. Logistic regression modelling will be used to assess whether programme participation is associated with improved child developmental health, better connections between families and social services, reduced instances of child maltreatment and being taken into out-of-home care by child welfare and reduced inequities for First Nations families. Non-participating individuals with similar sociodemographic characteristics will serve as comparators. We will use an interrupted time series approach to test for differences in outcomes before and after programme implementation and a propensity score analysis to compare differences between participants and non-participants. ETHICS AND DISSEMINATION: Approvals were granted by the Health Information Research Governance Committee of the First Nations Health and Social Secretariat of Manitoba and the University of Manitoba Health Research Ethics Board. Our integrated knowledge translation approach will involve disseminating findings through government and community briefings, developing lay summaries and infographics, presenting at academic conferences and publishing in scientific journals. PMID- 29018073 TI - Seasonal influenza vaccine effectiveness against laboratory-confirmed influenza in 2015-2016: a hospital-based test-negative case-control study in Lithuania. AB - OBJECTIVE: A case-control study was conducted to assess seasonal influenza vaccine effectiveness (SIVE) during the 2015-2016 influenza season. METHODS: A study was performed in three departments in Lithuania between 1 December 2015 and 1 May 2016. Data on demographic and clinical characteristics including influenza vaccination status were collected from the patients recommended to receive the seasonal influenza vaccine. Influenza virus infection was confirmed by multiplex reverse transcription polymerase chain reaction (RT-PCR) . RESULTS: Ninety-one (56.4%) of the 163 included subjects were >=65 years old. Fifteen (9.2%) subjects were vaccinated against influenza at least 2 weeks before the onset of influenza symptoms, 12 of them were >=65 years old. Of the 72 (44.2%) influenza virus positive cases, 65 (39.9%) were confirmed with influenza A (including 50 cases of influenza A(H1N1)pdm09), eight (4.9%) were confirmed with influenza B and one was a co-infection. Unadjusted SIVE against any influenza, influenza type A and influenza A(H1N1)pdm09 was 57% (95% CI -41% to 87%), 52% (95% CI -57% to 85%) and 70% (95% CI -43% to 94%) respectively. CONCLUSION: Although SIVE estimates were not statistically significant the point estimates suggest moderate effectiveness against influenza type A. PMID- 29018074 TI - Organisational and extraorganisational determinants of volume of service delivery by English community pharmacies: a cross-sectional survey and secondary data analysis. AB - OBJECTIVES: This study aimed to identify the organisational and extraorganisational factors associated with existing variation in the volume of services delivered by community pharmacies. DESIGN AND SETTING: Linear and ordered logistic regression of linked national data from secondary sources community pharmacy activity, socioeconomic and health need datasets-and primary data from a questionnaire survey of community pharmacies in nine diverse geographical areas in England. OUTCOME MEASURES: Annual dispensing volume; annual volume of medicines use reviews (MURs). RESULTS: National dataset (n=10 454 pharmacies): greater dispensing volume was significantly associated with pharmacy ownership type (large chains>independents>supermarkets), greater deprivation, higher local prevalence of cardiovascular disease and depression, older people (aged >75 years) and infants (aged 0-4 years) but lower prevalence of mental health conditions. Greater volume of MURs was significantly associated with pharmacy ownership type (large chains/supermarkets>>independents), greater dispensing volume, and lower disease prevalence.Survey dataset (n=285 pharmacies; response=34.6%): greater dispensing volume was significantly associated with staffing, skill-mix, organisational culture, years open and greater deprivation. Greater MUR volume was significantly associated with pharmacy ownership type (large chains/supermarkets>>independents), greater dispensing volume, weekly opening hours and lower asthma prevalence. CONCLUSIONS: Organisational and extraorganisational factors were found to impact differently on dispensing volume and MUR activity, the latter being driven more by corporate ownership than population need. While levels of staffing and skill-mix were associated with dispensing volume, they did not influence MUR activity. Despite recent changes to the contractual framework, the existing fee-for-service reimbursement may therefore not be the most appropriate for the delivery of cognitive (rather than supply) services, still appearing to incentivise quantity over the quality (in terms of appropriate targeting) of services delivered. Future research should focus on the development of quality measures that could be incorporated into community pharmacy reimbursement mechanisms. PMID- 29018075 TI - Prospective Investigation of Pesticide Applicators' Health (PIPAH) study: a cohort study of professional pesticide users in Great Britain. AB - PURPOSE: The purpose of the study is to monitor the exposure and health of workers in Great Britain who use pesticides as a part of their job, and to gain a better understanding of the relationship between long-term exposure to pesticides and health. PARTICIPANTS: Study participants are professional pesticide users who are certified in the safe use of pesticides or who were born before 1965 and apply pesticides under 'grandfather rights'. Overall response rate was 20%; participants are mostly male (98%) and the average age is 54 years, ranging from 17 to over 80 years. FINDINGS TO DATE: Participants have completed a baseline general questionnaire and three follow-up questionnaires on the use of pesticides. These data will enable investigations into the relationship between occupational pesticide exposure and health outcomes taking into account non occupational confounding factors. FUTURE PLANS: There is no set end date for data collection. Recruitment into the cohort will continue, and for the foreseeable future there will be annual pesticide use questionnaires and five yearly follow up general questionnaires.The intention is to validate the pesticide use questionnaire, and to develop a crop/job exposure matrix (C/JEM) which can be updated regularly. This C/JEM will be able to look at general categories of pesticide, such as insecticides, structurally related pesticides, such as organochlorines, or individual active ingredients. Data collected on use of personal protective equipment and method of application will provide information on how potential exposure to pesticide during application may have been modified. The study will be able to estimate changes in individual pesticide use over time, and to examine the associations between pesticide use and both baseline and long term health outcomes.The cohort members will be linked to national databases for notification of hospital episode statistics, cancer incidence and mortality for follow-up of health outcomes. PMID- 29018076 TI - Protocol for a prospective interventional trial to develop a diagnostic index test for stroke as a cause of vertigo, dizziness and imbalance in the emergency room (EMVERT study). AB - INTRODUCTION: Identifying stroke as a cause of acute vertigo, dizziness and imbalance in the emergency room is still a clinical challenge. Many patients are admitted to stroke units, but only a minority will have strokes. This imposes a heavy financial burden on the healthcare system. The aim of this study is to develop a diagnostic index test to identify patients with a high risk of having a stroke as the cause of acute vertigo and imbalance. METHODS AND ANALYSIS: Patients with acute onset of vertigo, dizziness, postural imbalance or double vision within the last 24 hours lasting for at least 10 min are eligible to be included in the study. Patients with clinically proven peripheral or central aetiology will be excluded. In the emergency room, all enrolled patients will undergo standardised neuro-ophthalmological/physiological testing (including video-oculography, mobile posturography, measurement of subjective visual vertical) (EMVERT block 1). Within 10 days, standardised MRI will be performed as a reference test to identify stroke (EMVERT block 2). Data from EMVERT block 2 will be compared with results from block 1 in order to devise a diagnostic index test with a high specificity and sensitivity to predict the risk of stroke in the emergency room. ETHICS AND DISSEMINATION: The study was approved by the ethics committee of the University of Munich and will be conducted according to the Guideline for Good Clinical Practice, the Federal Data Protecting Act and the Helsinki Declaration of the World Medical Association in its recent version. Study results are expected to be published in international peer-reviewed journals and will be presented at international conferences. TRIAL REGISTRATION NUMBER: German Clinical Trial Register: DRKS00008992; Universal trial number: U1111-1172-8719); pre-results. PMID- 29018077 TI - Efficacy of venetoclax as targeted therapy for relapsed/refractory t(11;14) multiple myeloma. AB - Venetoclax is a selective, orally bioavailable BCL-2 inhibitor that induces cell death in multiple myeloma (MM) cells, particularly in those harboring t(11;14), which express high levels of BCL-2 relative to BCL-XL and MCL-1. In this phase 1 study, patients with relapsed/refractory MM received venetoclax monotherapy. After a 2-week lead-in with weekly dose escalation, daily venetoclax was given at 300, 600, 900, or 1200 mg in dose-escalation cohorts and 1200 mg in the safety expansion. Dexamethasone could be added on progression during treatment. Sixty six patients were enrolled (30, dose-escalation cohorts; 36, safety expansion). Patients received a median of 5 prior therapies (range, 1-15); 61% were bortezomib and lenalidomide double refractory, and 46% had t(11;14). Venetoclax was generally well tolerated. Most common adverse events included mild gastrointestinal symptoms (nausea [47%], diarrhea [36%], vomiting [21%]). Cytopenias were the most common grade 3/4 events, with thrombocytopenia (32%), neutropenia (27%), anemia (23%), and leukopenia (23%) reported. The overall response rate (ORR) was 21% (14/66), and 15% achieved very good partial response or better (>=VGPR). Most responses (12/14 [86%]) were reported in patients with t(11;14). In this group, ORR was 40%, with 27% of patients achieving >=VGPR. Biomarker analysis confirmed that response to venetoclax correlated with higher BCL2:BCL2L1 and BCL2:MCL1 mRNA expression ratios. Venetoclax monotherapy at a daily dose up to 1200 mg has an acceptable safety profile and evidence of single agent antimyeloma activity in patients with relapsed/refractory MM, predominantly in patients with t(11;14) abnormality and those with a favorable BCL2 family profile. Registered at www.clinicaltrials.gov: #NCT01794520. PMID- 29018078 TI - Novel approaches to hemophilia therapy: successes and challenges. AB - New therapies for hemophilia A and hemophilia B will likely continue to change clinical practice. Ranging from extended half-life to nonfactor products and gene therapy, these innovative approaches have the potential to enhance the standard of care by decreasing infusion frequency to increase compliance, promoting prophylaxis, offering alternatives to inhibitor patients, and easing route of administration. Each category has intrinsic challenges that may limit the broader application of these promising therapies. To date, none specifically address the challenge of dispersing treatment to the developing world. PMID- 29018081 TI - Platelet interaction with activated endothelium: mechanistic insights from microfluidics. AB - Traditionally, in vitro flow chamber experiments and in vivo arterial thrombosis studies have been proved to be of vital importance to elucidate the mechanisms of platelet thrombus formation after vessel wall injury. In recent years, it has become clear that platelets also act as modulators of inflammatory processes, such as atherosclerosis. A key element herein is the complex cross talk between platelets, the coagulation system, leukocytes, and the activated endothelium. This review provides insight into the platelet-endothelial interface, based on in vitro flow chamber studies and cross referenced with in vivo thrombosis studies. The main mechanisms of platelet interaction with the activated endothelium encompass (1) platelet rolling via interaction of platelet glycoprotein Ib-IX-V with endothelial-released von Willebrand factor with a supporting role for the P selectin/P-selectin glycoprotein ligand 1 axis, followed by (2) firm platelet adhesion to the endothelium via interaction of platelet alphaIIbbeta3 with endothelial alphavbeta3 and intercellular adhesion molecule 1, and (3) a stimulatory role for thrombin, the thrombospondin-1/CD36 axis and cyclooxygenase 1 in subsequent platelet activation and stable thrombus formation. In addition, the molecular mechanisms underlying the stimulatory effect of platelets on leukocyte transendothelial migration, a key mediator of atheroprogression, are discussed. Throughout the review, emphasis is placed on recommendations for setting up, reporting, interpreting, and comparing endothelial-lined flow chamber studies and suggestions for future studies. PMID- 29018079 TI - SETD2 alterations impair DNA damage recognition and lead to resistance to chemotherapy in leukemia. AB - Mutations in SETD2, encoding the histone 3 lysine 36 trimethyltransferase, are enriched in relapsed acute lymphoblastic leukemia and MLL-rearranged acute leukemia. We investigated the impact of SETD2 mutations on chemotherapy sensitivity in isogenic leukemia cell lines and in murine leukemia generated from a conditional knockout of Setd2. SETD2 mutations led to resistance to DNA damaging agents, cytarabine, 6-thioguanine, doxorubicin, and etoposide, but not to a non-DNA damaging agent, l-asparaginase. H3K36me3 localizes components of the DNA damage response (DDR) pathway and SETD2 mutation impaired DDR, blunting apoptosis induced by cytotoxic chemotherapy. Consistent with local recruitment of DDR, genomic regions with higher H3K36me3 had a lower mutation rate, which was increased with SETD2 mutation. Heterozygous conditional inactivation of Setd2 in a murine model decreased the latency of MLL-AF9-induced leukemia and caused resistance to cytarabine treatment in vivo, whereas homozygous loss delayed leukemia formation. Treatment with JIB-04, an inhibitor of the H3K9/36me3 demethylase KDM4A, restored H3K36me3 levels and sensitivity to cytarabine. These findings establish SETD2 alteration as a mechanism of resistance to DNA-damaging chemotherapy, consistent with a local loss of DDR, and identify a potential therapeutic strategy to target SETD2-mutant leukemias. PMID- 29018080 TI - Chd7 deficiency delays leukemogenesis in mice induced by Cbfb-MYH11. AB - Inversion of chromosome 16 is a consistent finding in patients with acute myeloid leukemia subtype M4 with eosinophilia, which generates a CBFB-MYH11 fusion gene. Previous studies showed that the interaction between CBFbeta-smooth muscle myosin heavy chain (SMMHC; encoded by CBFB-MYH11) and RUNX1 plays a critical role in the pathogenesis of this leukemia. Recently, it was shown that chromodomain helicase DNA-binding protein-7 (CHD7) interacts with RUNX1 and suppresses RUNX1-induced expansion of hematopoietic stem and progenitor cells. These results suggest that CHD7 is also critical for CBFB-MYH11-induced leukemogenesis. To test this hypothesis, we generated Chd7f/fMx1-CreCbfb+/56M mice, which expressed the Cbfb MYH11 fusion gene and deactivated Chd7 in hematopoietic cells upon inducing Cre with polyinosinic-polycytidylic acid. The Lin-Sca1-c-Kit+ (LK) population was significantly lower in Chd7f/fMx1-CreCbfb+/56M mice than in Mx1-CreCbfb+/56M mice. In addition, there were fewer 5-bromo-2'-deoxyuridine-positive cells in the LK population in Chd7f/fMx1-CreCbfb+/56M mice, and genes associated with cell cycle, cell growth, and proliferation were differentially expressed between Chd7f/fMx1-CreCbfb+/56M and Mx1-CreCbfb+/56M leukemic cells. In vitro studies showed that CHD7 interacted with CBFbeta-SMMHC through RUNX1 and that CHD7 enhanced transcriptional activity of RUNX1 and CBFbeta-SMMHC on Csf1r, a RUNX1 target gene. Moreover, RNA sequencing of c-Kit+ cells showed that CHD7 functions mostly through altering the expression of RUNX1 target genes. Most importantly, Chd7 deficiency delayed Cbfb-MYH11-induced leukemia in both primary and transplanted mice. These data indicate that Chd7 is important for Cbfb-MYH11 induced leukemogenesis by facilitating RUNX1 regulation of transcription and cellular proliferation. PMID- 29018083 TI - Reviving a national prevention agenda is key to sustainability of health care in Canada. PMID- 29018082 TI - The orphan nuclear receptor TR4 regulates erythroid cell proliferation and maturation. AB - The orphan nuclear receptors TR4 (NR2C2) and TR2 (NR2C1) are the DNA-binding subunits of the macromolecular complex, direct repeat erythroid-definitive, which has been shown to repress epsilon- and gamma-globin transcription during adult definitive erythropoiesis. Previous studies implied that TR2 and TR4 act largely in a redundant manner during erythroid differentiation; however, during the course of routine genetic studies, we observed multiple variably penetrant phenotypes in the Tr4 mutants, suggesting that indirect effects of the mutation might be masked by multiple modifying genes. To test this hypothesis, Tr4+/- mutant mice were bred into a congenic C57BL/6 background and their phenotypes were reexamined. Surprisingly, we found that homozygous Tr4 null mutant mice expired early during embryogenesis, around embryonic day 7.0, and well before erythropoiesis commences. We further found that Tr4+/- erythroid cells failed to fully differentiate and exhibited diminished proliferative capacity. Analysis of Tr4+/- mutant erythroid cells revealed that reduced TR4 abundance resulted in decreased expression of genes required for heme biosynthesis and erythroid differentiation (Alad and Alas2), but led to significantly increased expression of the proliferation inhibitory factor, cyclin dependent kinase inhibitor (Cdkn1c) These studies support a vital role for TR4 in promoting erythroid maturation and proliferation, and demonstrate that TR4 and TR2 execute distinct, individual functions during embryogenesis and erythroid differentiation. PMID- 29018085 TI - Evaluating the effects of Quebec's private-public drug insurance system. PMID- 29018086 TI - Bitot spot: early marker for avoidable blindness. PMID- 29018087 TI - Natural health products are subjected to rigorous process prior to market. PMID- 29018088 TI - Natural health products, complementary and alternative medicine, and Health Canada. PMID- 29018089 TI - Hundreds of doctors support controversial tax reforms. PMID- 29018090 TI - Medical-legal concerns over prescribing opioids on the rise. PMID- 29018084 TI - Oral morphine versus ibuprofen administered at home for postoperative orthopedic pain in children: a randomized controlled trial. AB - BACKGROUND: Oral morphine for postoperative pain after minor pediatric surgery, while increasingly popular, is not supported by evidence. We evaluated whether oral morphine was superior to ibuprofen for at-home management of children's postoperative pain. METHODS: We conducted a randomized superiority trial comparing oral morphine (0.5 mg/kg) with ibuprofen (10 mg/kg) in children 5 to 17 years of age who had undergone minor outpatient orthopedic surgery (June 2013 to September 2016). Participants took up to 8 doses of the intervention drug every 6 hours as needed for pain at home. The primary outcome was pain, according to the Faces Pain Scale - Revised, for the first dose. Secondary outcomes included additional analgesic requirements, adverse effects, unplanned health care visits and pain scores for doses 2 to 8. RESULTS: We analyzed data for 77 participants in each of the morphine and ibuprofen groups. Both interventions decreased pain scores with no difference in efficacy. The median difference in pain score before and after the first dose of medication was 1 (interquartile range 0-1) for both morphine and ibuprofen (p = 0.2). For doses 2 to 8, the median differences in pain score before and after the dose were not significantly different between groups. Significantly more participants taking morphine reported adverse effects (45/65 [69%] v. 26/67 [39%], p < 0.001), most commonly drowsiness (31/65 [48%] v. 15/67 [22%] in the morphine and ibuprofen groups, respectively; p = 0.003). INTERPRETATION: Morphine was not superior to ibuprofen, and both drugs decreased pain with no apparent difference in efficacy. Morphine was associated with significantly more adverse effects, which suggests that ibuprofen is a better first-line option after minor surgery. TRIAL REGISTRATION: ClinicalTrials.gov, no. NCT01686802. PMID- 29018091 TI - Sepsis kills one million newborns a year: WHO. PMID- 29018092 TI - Molecular characterization and verification of azido-3,8-dideoxy-d-manno-oct-2 ulosonic acid incorporation into bacterial lipopolysaccharide. AB - 3-Deoxy-d-manno-oct-2-ulosonic acid (Kdo) is an essential component of LPS in the outer leaflet of the Gram-negative bacterial outer membrane. Although labeling of Escherichia coli with the chemical reporter 8-azido-3,8-dideoxy-d-manno-oct-2 ulosonic acid (Kdo-N3) has been reported, its incorporation into LPS has not been directly shown. We have now verified Kdo-N3 incorporation into E. coli LPS at the molecular level. Using microscopy and PAGE analysis, we show that Kdo-N3 is localized to the outer membrane and specifically incorporates into rough and deep rough LPS. In an E. coli strain lacking endogenous Kdo biosynthesis, supplementation with exogenous Kdo restored full-length core-LPS, which suggests that the Kdo biosynthetic pathways might not be essential in vivo in the presence of sufficient exogenous Kdo. In contrast, exogenous Kdo-N3 only restored a small fraction of core LPS with the majority incorporated into truncated LPS. The truncated LPS were identified as Kdo-N3-lipid IVA and (Kdo-N3)2-lipid IVA by MS analysis. The low level of Kdo-N3 incorporation could be partly explained by a 6 fold reduction in the specificity constant of the CMP-Kdo synthetase KdsB with Kdo-N3 compared with Kdo. These results indicate that the azido moiety in Kdo-N3 interferes with its utilization and may limit its utility as a tracer of LPS biosynthesis and transport in E. coli We propose that our findings will be helpful for researchers using Kdo and its chemical derivatives for investigating LPS biosynthesis, transport, and assembly in Gram-negative bacteria. PMID- 29018095 TI - A systematic review of interventions to foster physician resilience. AB - This review aimed to synthesise the literature describing interventions to improve resilience among physicians, to evaluate the quality of this research and to outline the type and efficacy of interventions implemented. Searches were conducted in April 2017 using five electronic databases. Reference lists of included studies and existing review papers were screened. English language, peer reviewed studies evaluating interventions to improve physician resilience were included. Data were extracted on setting, design, participant and intervention characteristics and outcomes. Methodological quality was assessed using the Downs and Black checklist. Twenty-two studies were included. Methodological quality was low to moderate. The most frequently employed interventional strategies were psychosocial skills training and mindfulness training. Effect sizes were heterogeneous. Methodologically rigorous research is required to establish best practice in improving resilience among physicians and to better consider how healthcare settings should be considered within interventions. PMID- 29018093 TI - How activating mutations affect MEK1 regulation and function. AB - The MEK1 kinase directly phosphorylates ERK2, after the activation loop of MEK1 is itself phosphorylated by Raf. Studies over the past decade have revealed a large number of disease-related mutations in the MEK1 gene that lead to tumorigenesis and abnormal development. Several of these mutations result in MEK1 constitutive activity, but how they affect MEK1 regulation and function remains largely unknown. Here, we address these questions focusing on two pathogenic variants of the Phe-53 residue, which maps to the well-characterized negative regulatory region of MEK1. We found that these variants are phosphorylated by Raf faster than the wild-type enzyme, and this phosphorylation further increases their enzymatic activity. However, the maximal activities of fully phosphorylated wild-type and mutant enzymes are indistinguishable. On the basis of available structural information, we propose that the activating substitutions destabilize the inactive conformation of MEK1, resulting in its constitutive activity and making it more prone to Raf-mediated phosphorylation. Experiments in zebrafish revealed that the effects of activating variants on embryonic development reflect the joint control of the negative regulatory region and activating phosphorylation. Our results underscore the complexity of the effects of activating mutations on signaling systems, even at the level of a single protein. PMID- 29018098 TI - Toward More Meaningful Accountability to the Public: Assessing Lifelong Competence of Physicians. PMID- 29018097 TI - Leaf and Plant Age Affects Photosynthetic Performance and Photoprotective Capacity. AB - In this work, we studied the changes in high-light tolerance and photosynthetic activity in leaves of the Arabidopsis (Arabidopsis thaliana) rosette throughout the vegetative stage of growth. We implemented an image-analysis work flow to analyze the capacity of both the whole plant and individual leaves to cope with excess excitation energy by following the changes in absorbed light energy partitioning. The data show that leaf and plant age are both important factors influencing the fate of excitation energy. During the dark-to-light transition, the age of the plant affects mostly steady-state levels of photochemical and nonphotochemical quenching, leading to an increased photosynthetic performance of its leaves. The age of the leaf affects the induction kinetics of nonphotochemical quenching. These observations were confirmed using model selection procedures. We further investigated how different leaves on a rosette acclimate to high light and show that younger leaves are less prone to photoinhibition than older leaves. Our results stress that both plant and leaf age should be taken into consideration during the quantification of photosynthetic and photoprotective traits to produce repeatable and reliable results. PMID- 29018094 TI - Substrate-induced conformational changes in the nucleotide-binding domains of lipid bilayer-associated P-glycoprotein during ATP hydrolysis. AB - P-glycoprotein (Pgp) is an efflux pump important in multidrug resistance of cancer cells and in determining drug pharmacokinetics. Pgp is a prototype ATP binding cassette transporter with two nucleotide-binding domains (NBDs) that bind and hydrolyze ATP. Conformational changes at the NBDs (the Pgp engines) lead to changes across Pgp transmembrane domains that result in substrate translocation. According to current alternating access models (substrate-binding pocket accessible only to one side of the membrane at a time), binding of ATP promotes NBD dimerization, resulting in external accessibility of the drug-binding site (outward-facing, closed NBD conformation), and ATP hydrolysis leads to dissociation of the NBDs with the subsequent return of the accessibility of the binding site to the cytoplasmic side (inward-facing, open NBD conformation). However, previous work has not investigated these events under near-physiological conditions in a lipid bilayer and in the presence of transport substrate. Here, we used luminescence resonance energy transfer (LRET) to measure the distances between the two Pgp NBDs. Pgp was labeled with LRET probes, reconstituted in lipid nanodiscs, and the distance between the NBDs was measured at 37 degrees C. In the presence of verapamil, a substrate that activates ATP hydrolysis, the NBDs of Pgp reconstituted in nanodiscs were never far apart during the hydrolysis cycle, and we never observed the NBD-NBD distances of tens of A that have previously been reported. However, we found two main conformations that coexist in a dynamic equilibrium under all conditions studied. Our observations highlight the importance of performing studies of efflux pumps under near-physiological conditions, in a lipid bilayer, at 37 degrees C, and during substrate-stimulated hydrolysis. PMID- 29018096 TI - The Distinct Roles of Class I and II RPD3-Like Histone Deacetylases in Salinity Stress Response. AB - Histone acetylation is an essential process in the epigenetic regulation of diverse biological processes, including environmental stress responses in plants. Previously, our research group identified a histone deacetylase (HDAC) inhibitor (HDI) that confers salt tolerance in Arabidopsis (Arabidopsis thaliana). In this study, we demonstrate that class I HDAC (HDA19) and class II HDACs (HDA5/14/15/18) control responses to salt stress through different pathways. The screening of 12 different selective HDIs indicated that seven newly reported HDIs enhance salt tolerance. Genetic analysis, based on a pharmacological study, identified which HDACs function in salinity stress tolerance. In the wild-type Columbia-0 background, hda19 plants exhibit tolerance to high-salinity stress, while hda5/14/15/18 plants exhibit hypersensitivity to salt stress. Transcriptome analysis revealed that the effect of HDA19 deficiency on the response to salinity stress is distinct from that of HDA5/14/15/18 deficiencies. In hda19 plants, the expression levels of stress tolerance-related genes, late embryogenesis abundant proteins that prevent protein aggregation and positive regulators such as ABI5 and NAC019 in abscisic acid signaling, were induced strongly relative to the wild type. Neither of these elements was up-regulated in the hda5/14/15/18 plants. The mutagenesis of HDA19 by genome editing in the hda5/14/15/18 plants enhanced salt tolerance, suggesting that suppression of HDA19 masks the phenotype caused by the suppression of class II HDACs in the salinity stress response. Collectively, our results demonstrate that HDIs that inhibit class I HDACs allow the rescue of plants from salinity stress regardless of their selectivity, and they provide insight into the hierarchal regulation of environmental stress responses through HDAC isoforms. PMID- 29018099 TI - Feedback Control in Hemodialysis-Much Ado about Nothing? PMID- 29018101 TI - Maintenance of Certification: Framing the Dialogue. PMID- 29018103 TI - Maintenance of Certification: Demonstrating Ongoing Competence. PMID- 29018102 TI - Transformation of ABIM and What the Changes Mean to Nephrologists. PMID- 29018104 TI - Much Activity, Uncertainty Remains. AB - Bipartisan market stabilization negotiations gave way to a last-gasp attempt at repeal and replace; the ACA emerged intact but buffeted by uncertainty. PMID- 29018106 TI - Second-trimester abortion: women often lack the choice they should be offered. PMID- 29018100 TI - Randomized Crossover Trial of Blood Volume Monitoring-Guided Ultrafiltration Biofeedback to Reduce Intradialytic Hypotensive Episodes with Hemodialysis. AB - BACKGROUND AND OBJECTIVES: Intradialytic hypotension (IDH) is associated with morbidity. The effect of blood volume-guided ultrafiltration biofeedback, which automatically adjusts fluid removal rate on the basis of blood volume parameters, on the reduction of IDH was tested in a randomized crossover trial. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We performed a 22-week, single blind, randomized crossover trial in patients receiving maintenance hemodialysis who had >30% of sessions complicated by symptomatic IDH in five centers in Calgary, Alberta, Canada. Participants underwent a 4-week run-in period to standardize dialysis prescription and dry weight on the basis of clinical examination. Those meeting inclusion criteria were randomized to best clinical practice hemodialysis (control) or best clinical practice plus blood volume-guided ultrafiltration biofeedback (intervention) for 8 weeks, followed by a 2-week washout and subsequent crossover for a second 8-week phase. The primary outcome was rate of symptomatic IDH. RESULTS: Thirty-five participants entered, 32 were randomized, and 26 completed the study. The rate of symptomatic IDH with biofeedback was 0.10/h (95% confidence interval, 0.06 to 0.14) and 0.07/h (95% confidence interval, 0.05 to 0.10) during control (P=0.29). There were no differences in the rate or proportion of sessions with asymptomatic IDH or symptoms alone. Results remained consistent when adjusted for randomization order and study week. There were no differences between intervention and control in the last study week in interdialytic weight gain (difference [SD], -0.02 [0.8] kg), brain natriuretic peptide (1460 [19,052] ng/L), cardiac troponins (3 [86] ng/L), extracellular water-to-intracellular water ratio (0.05 [0.33]), ultrafiltration rate (1.1 [7.0] ml/kg per hour), and dialysis recovery time (0.43 [19.25] hours). CONCLUSION: The use of blood volume monitoring-guided ultrafiltration biofeedback in patients prone to IDH did not reduce the rate of symptomatic IDH events. PMID- 29018107 TI - Incentivising contraceptive use: a helping hand or a push in the wrong direction? PMID- 29018108 TI - Communication blocks and the power of rethinking. PMID- 29018109 TI - Resources for service provision: policies and politics. PMID- 29018110 TI - Authors' response to 'Comment on 'Effects of injectable progestogen contraception versus the copper intrauterine device on HIV acquisition: sub-study of a pragmatic randomised controlled trial' '. PMID- 29018111 TI - Correction: 'Mind the gap: responding to the global funding crisis in family planning'. PMID- 29018113 TI - Venus. PMID- 29018112 TI - Correction: 'Expanding family planning options: offering the Standard Days MethodTM to women in Istanbul'. PMID- 29018114 TI - Removal of Mirena(r) with fibrous tissue around the arms. PMID- 29018115 TI - Kaposi's Sarcoma-Associated Herpesvirus Increases PD-L1 and Proinflammatory Cytokine Expression in Human Monocytes. AB - Kaposi's sarcoma-associated herpesvirus (KSHV) is associated with the human malignancy Kaposi's sarcoma and the lymphoproliferative disorders primary effusion lymphoma and multicentric Castleman's disease. KSHV establishes lytic infection of monocytes in vivo, which may represent an important cellular reservoir during KS disease progression. KS tumors consist of latently infected endothelial cells; however, lytic phase gene products are important for KS onset. Early KS lesion progression is driven by proinflammatory cytokines supplied by immune cell infiltrates including T cells and monocytes. KSHV-infected monocytes may supply the lytic viral products and the inflammatory milieu conducive to KS tumor progression. To establish successful infection, KSHV extensively modulates the host immune system. KSHV antigens activate both innate and adaptive immune responses including KSHV-specific T cells, but lifelong infection is still established. Programmed death ligand 1 (PD-L1) is a prosurvival cell surface protein that suppresses T-cell-mediated killing. PD-L1 is variably present on various tumor cells and is a targetable marker for cancer treatment. We show that KSHV infection of human monocytes increases PD-L1 expression and transcription in a dose-dependent manner. We also saw evidence of lytic gene expression in the KSHV-infected monocytes. Intact KSHV is needed for full PD-L1 response in human monocytes. KSHV induces a general proinflammatory cytokine milieu including interleukins 1alpha, 1beta, and 6, which have been implicated in early KS lesion progression. KSHV-mediated PD-L1 increase may represent a novel mechanism of KSHV mediated immune modulation to allow for virus survival and eventually malignant progression.IMPORTANCE KSHV is the etiologic agent of Kaposi's sarcoma and the lymphoproliferative disorders primary effusion lymphoma and multicentric Castleman's disease. Programmed death ligand 1 (PD-L1) is an immunosuppressive cell surface marker that inhibits T cell activation. We report that KSHV infection of primary human monocytes upregulates PD-L1 transcription and protein expression. Analysis of the cytokine and chemokine milieu following KSHV infection of monocytes revealed that KSHV induces interleukins 1alpha, 1beta, and 6, all of which have been implicated in KS development. Our work has identified another potential immune evasion strategy for KSHV and a potential target for immunotherapy of KSHV-derived disease. PMID- 29018116 TI - Quinolone Resistance Reversion by Targeting the SOS Response. AB - Suppression of the SOS response has been postulated as a therapeutic strategy for potentiating antimicrobial agents. We aimed to evaluate the impact of its suppression on reversing resistance using a model of isogenic strains of Escherichia coli representing multiple levels of quinolone resistance. E. coli mutants exhibiting a spectrum of SOS activity were constructed from isogenic strains carrying quinolone resistance mechanisms with susceptible and resistant phenotypes. Changes in susceptibility were evaluated by static (MICs) and dynamic (killing curves or flow cytometry) methodologies. A peritoneal sepsis murine model was used to evaluate in vivo impact. Suppression of the SOS response was capable of resensitizing mutant strains with genes encoding three or four different resistance mechanisms (up to 15-fold reductions in MICs). Killing curve assays showed a clear disadvantage for survival (Deltalog10 CFU per milliliter [CFU/ml] of 8 log units after 24 h), and the in vivo efficacy of ciprofloxacin was significantly enhanced (Deltalog10 CFU/g of 1.76 log units) in resistant strains with a suppressed SOS response. This effect was evident even after short periods (60 min) of exposure. Suppression of the SOS response reverses antimicrobial resistance across a range of E. coli phenotypes from reduced susceptibility to highly resistant, playing a significant role in increasing the in vivo efficacy.IMPORTANCE The rapid rise of antibiotic resistance in bacterial pathogens is now considered a major global health crisis. New strategies are needed to block the development of resistance and to extend the life of antibiotics. The SOS response is a promising target for developing therapeutics to reduce the acquisition of antibiotic resistance and enhance the bactericidal activity of antimicrobial agents such as quinolones. Significant questions remain regarding its impact as a strategy for the reversion or resensitization of antibiotic-resistant bacteria. To address this question, we have generated E. coli mutants that exhibited a spectrum of SOS activity, ranging from a natural SOS response to a hypoinducible or constitutively suppressed response. We tested the effects of these mutations on quinolone resistance reversion under therapeutic concentrations in a set of isogenic strains carrying different combinations of chromosome- and plasmid-mediated quinolone resistance mechanisms with susceptible, low-level quinolone resistant, resistant, and highly resistant phenotypes. Our comprehensive analysis opens up a new strategy for reversing drug resistance by targeting the SOS response. PMID- 29018117 TI - Reciprocal Prioritization to Dietary Glycans by Gut Bacteria in a Competitive Environment Promotes Stable Coexistence. AB - When presented with nutrient mixtures, several human gut Bacteroides species exhibit hierarchical utilization of glycans through a phenomenon that resembles catabolite repression. However, it is unclear how closely these observed physiological changes, often measured by altered transcription of glycan utilization genes, mirror actual glycan depletion. To understand the glycan prioritization strategies of two closely related human gut symbionts, Bacteroides ovatus and Bacteroides thetaiotaomicron, we performed a series of time course assays in which both species were individually grown in a medium with six different glycans that both species can degrade. Disappearance of the substrates and transcription of the corresponding polysaccharide utilization loci (PULs) were measured. Each species utilized some glycans before others, but with different priorities per species, providing insight into species-specific hierarchical preferences. In general, the presence of highly prioritized glycans repressed transcription of genes involved in utilizing lower-priority nutrients. However, transcriptional sensitivity to some glycans varied relative to the residual concentration in the medium, with some PULs that target high-priority substrates remaining highly expressed even after their target glycan had been mostly depleted. Coculturing of these organisms in the same mixture showed that the hierarchical orders generally remained the same, promoting stable coexistence. Polymer length was found to be a contributing factor for glycan utilization, thereby affecting its place in the hierarchy. Our findings not only elucidate how B. ovatus and B. thetaiotaomicron strategically access glycans to maintain coexistence but also support the prioritization of carbohydrate utilization based on carbohydrate structure, advancing our understanding of the relationships between diet and the gut microbiome.IMPORTANCE The microorganisms that reside in the human colon fulfill their energy requirements mainly from diet and host-derived complex carbohydrates. Members of this ecosystem possess poorly understood strategies to prioritize and compete for these nutrients. Based on direct carbohydrate measurements and corresponding transcriptional analyses, our findings showed that individual bacterial species exhibit different preferences for the same set of glycans and that this prioritization is maintained in a competitive environment, which may promote stable coexistence. Such understanding of gut bacterial glycan utilization will be essential to eliciting predictable changes in the gut microbiota to improve health through the diet. PMID- 29018118 TI - Transgenerational Diapause as an Avoidance Strategy against Bacterial Pathogens in Caenorhabditis elegans. AB - The dynamic response of organisms exposed to environmental pathogens determines their survival or demise, and the outcome of this interaction depends on the host's susceptibility and pathogen-dependent virulence factors. The transmission of acquired information about the nature of a pathogen to progeny may ensure effective defensive strategies for the progeny's survival in adverse environments. Environmental RNA interference (RNAi) is a systemic and heritable mechanism and has recently been linked to antibacterial and antifungal defenses in both plants and animals. Here, we report that the second generation of Caenorhabditis elegans living on pathogenic bacteria can avoid bacterial infection by entering diapause in an RNAi pathway-dependent mechanism. Furthermore, we demonstrate that the information encoding this survival strategy is transgenerationally transmitted to the progeny via the maternal germ line.IMPORTANCE Bacteria vastly influence physiology and behavior, and yet, the specific mechanisms by which they cause behavioral changes in hosts are not known. We use C. elegans as a host and the bacteria they eat to understand how microbes trigger a behavioral change that helps animals to survive. We found that animals faced with an infection for two generations could enter a hibernationlike state, arresting development by forming dauer larvae. Dauers have closed mouths and effectively avoid infection. Animals accumulate information that is transgenerationally transmitted to the next generations to form dauers. This work gives insight on how bacteria communicate in noncanonical ways with their hosts, resulting in long-lasting effects providing survival strategies to the community. PMID- 29018119 TI - Globally Important Haptophyte Algae Use Exogenous Pyrimidine Compounds More Efficiently than Thiamin. AB - Vitamin B1 (thiamin) is a cofactor for critical enzymatic processes and is scarce in surface oceans. Several eukaryotic marine algal species thought to rely on exogenous thiamin are now known to grow equally well on the precursor 4-amino-5 hydroxymethyl-2-methylpyrimidine (HMP), including the haptophyte Emiliania huxleyi Because the thiamin biosynthetic capacities of the diverse and ecologically important haptophyte lineage are otherwise unknown, we investigated the pathway in transcriptomes and two genomes from 30 species representing six taxonomic orders. HMP synthase is missing in data from all studied taxa, but the pathway is otherwise complete, with some enzymatic variations. Experiments on axenic species from three orders demonstrated that equivalent growth rates were supported by 1 uM HMP or thiamin amendment. Cellular thiamin quotas were quantified in the oceanic phytoplankter E. huxleyi using the thiochrome assay. E. huxleyi exhibited luxury storage in standard algal medium [(1.16 +/- 0.18) * 10-6 pmol thiamin cell-1], whereas quotas in cultures grown under more environmentally relevant thiamin and HMP supplies [(2.22 +/- 0.07) * 10-7 or (1.58 +/- 0.14) * 10 7 pmol thiamin cell-1, respectively] were significantly lower than luxury values and prior estimates. HMP and its salvage-related analog 4-amino-5-aminomethyl-2 methylpyrimidine (AmMP) supported higher growth than thiamin under environmentally relevant supply levels. These compounds also sustained growth of the stramenopile alga Pelagomonas calceolata Together with identification of a salvage protein subfamily (TENA_E) in multiple phytoplankton, the results indicate that salvaged AmMP and exogenously acquired HMP are used by several groups for thiamin production. Our studies highlight the potential importance of thiamin pathway intermediates and their analogs in shaping phytoplankton community structure.IMPORTANCE The concept that vitamin B1 (thiamin) availability in seawater controls the productivity and structure of eukaryotic phytoplankton communities has been discussed for half a century. We examined B1 biosynthesis and salvage pathways in diverse phytoplankton species. These comparative genomic analyses as well as experiments show that phytoplankton thought to require exogenous B1 not only utilize intermediate compounds to meet this need but also exhibit stronger growth on these compounds than on thiamin. Furthermore, oceanic phytoplankton have lower cellular thiamin quotas than previously reported, and salvage of intermediate compounds is likely a key mechanism for meeting B1 requirements under environmentally relevant scenarios. Thus, several lines of evidence now suggest that availability of specific precursor molecules could be more important in structuring phytoplankton communities than the vitamin itself. This understanding of preferential compound utilization and thiamin quotas will improve biogeochemical model parameterization and highlights interaction networks among ocean microbes. PMID- 29018120 TI - An Engineered Synthetic Pathway for Discovering Nonnatural Nonribosomal Peptides in Escherichia coli. AB - Peptides that are synthesized independently of the ribosome in plants, fungi, and bacteria can have clinically relevant anticancer, antihemochromatosis, and antiviral activities, among many other. Despite their natural origin, discovering new natural products is challenging, and there is a need to expand the chemical diversity that is accessible. In this work, we created a novel, compressed synthetic pathway for the heterologous expression and diversification of nonribosomal peptides (NRPs) based on homologs of siderophore pathways from Escherichia coli and Vibrio cholerae To enhance the likelihood of successful molecule production, we established a selective pressure via the iron-chelating properties of siderophores. By supplementing cells containing our synthetic pathway with different precursors that are incorporated into the pathway independently of NRP enzymes, we generated over 20 predesigned, novel, and structurally diverse NRPs. This engineering approach, where phylogenetically related genes from different organisms are integrated and supplemented with novel precursors, should enable heterologous expression and molecular diversification of NRPs.IMPORTANCE Nonribosomal peptides (NRPs) constitute a source of bioactive molecules with potential therapeutic applications. However, discovering novel NRPs by rational engineering of biosynthetic pathways remains challenging. Here, we show that a synthetic compressed pathway in which we replaced biosynthetic genes with their ancestral homologs and orthologs enabled successful heterologous NRP expression. Polyamines added exogenously were incorporated into nascent NRPs, and molecular production was pressured by growing the host under conditions that make such NRPs beneficial for survival. This multilayered approach resulted in the assembly of over 20 distinct and novel molecules. We envision this strategy being used to enable the production of NRPs from heterologous pathways. PMID- 29018121 TI - Dysbiosis and Its Discontents. AB - Dysbiosis is a key term in human microbiome research, especially when microbiome patterns are associated with disease states. Although some questions have been raised about how this term is applied, its use continues undiminished in the literature. We investigate the ways in which microbiome researchers discuss dysbiosis and then assess the impact of different concepts of dysbiosis on microbiome research. After an overview of the term's historical roots, we conduct quantitative and qualitative analyses of a large selection of contemporary dysbiosis statements. We categorize both short definitions and longer conceptual statements about dysbiosis. Further analysis allows us to identify the problematic implications of how dysbiosis is used, particularly with regard to causal hypotheses and normal-abnormal distinctions. We suggest that researchers should reflect carefully on the ways in which they discuss dysbiosis, in order for the field to continue to develop greater predictive scope and explanatory depth. PMID- 29018124 TI - Straight from the Horse's "Mouth": Genomic Epidemiology of an Icelandic Equine Epidemic. AB - Despite tight biosecurity measures, an outbreak of respiratory disease rapidly spread across the Icelandic equine population in 2010. Horse transportation was brought to a halt in order to contain the spread of the infectious agent. In a recent article, Bjornsdottir and colleagues (S. Bjornsdottir et al., mBio 8:e00826-17, 2017, https://doi.org/10.1128/mBio.00826-17) employ the power and resolution of "genomic epidemiology," the combination of whole genomic sequencing and epidemiological approaches, to examine the source and spread of the outbreak. Intriguingly, the outbreak was not viral in origin, but linked to a bacterial "commensal" Streptococcus equi subsp. zooepidemicus infection. A national sampling strategy coupled with population genomics revealed that the outbreak was most likely driven by a S. equi subsp. zooepidemicus sequence type 209 (ST209) infection that spread nationally from a single source. This retrospective study demonstrates the power of genomics applied on a national scale to unravel the cause of a significant biosecurity threat. PMID- 29018122 TI - The BvgAS Regulon of Bordetella pertussis. AB - Nearly all virulence factors in Bordetella pertussis are activated by a master two-component system, BvgAS, composed of the sensor kinase BvgS and the response regulator BvgA. When BvgS is active, BvgA is phosphorylated (BvgA~P), and virulence-activated genes (vags) are expressed [Bvg(+) mode]. When BvgS is inactive and BvgA is not phosphorylated, virulence-repressed genes (vrgs) are induced [Bvg(-) mode]. Here, we have used transcriptome sequencing (RNA-seq) and reverse transcription-quantitative PCR (RT-qPCR) to define the BvgAS-dependent regulon of B. pertussis Tohama I. Our analyses reveal more than 550 BvgA regulated genes, of which 353 are newly identified. BvgA-activated genes include those encoding two-component systems (such as kdpED), multiple other transcriptional regulators, and the extracytoplasmic function (ECF) sigma factor brpL, which is needed for type 3 secretion system (T3SS) expression, further establishing the importance of BvgA~P as an apex regulator of transcriptional networks promoting virulence. Using in vitro transcription, we demonstrate that the promoter for brpL is directly activated by BvgA~P. BvgA-FeBABE cleavage reactions identify BvgA~P binding sites centered at positions -41.5 and -63.5 in bprL Most importantly, we show for the first time that genes for multiple and varied metabolic pathways are significantly upregulated in the B. pertussis Bvg( ) mode. These include genes for fatty acid and lipid metabolism, sugar and amino acid transporters, pyruvate dehydrogenase, phenylacetic acid degradation, and the glycolate/glyoxylate utilization pathway. Our results suggest that metabolic changes in the Bvg(-) mode may be participating in bacterial survival, transmission, and/or persistence and identify over 200 new vrgs that can be tested for function.IMPORTANCE Within the past 20 years, outbreaks of whooping cough, caused by Bordetella pertussis, have led to respiratory disease and infant mortalities, despite good vaccination coverage. This is due, at least in part, to the introduction of a less effective acellular vaccine in the 1990s. It is crucial, then, to understand the molecular basis of B. pertussis growth and infection. The two-component system BvgA (response regulator)/BvgS (histidine kinase) is the master regulator of B. pertussis virulence genes. We report here the first RNA-seq analysis of the BvgAS regulon in B. pertussis, revealing that more than 550 genes are regulated by BvgAS. We show that genes for multiple and varied metabolic pathways are highly regulated in the Bvg(-) mode (absence of BvgA phosphorylation). Our results suggest that metabolic changes in the Bvg(-) mode may be participating in bacterial survival, transmission, and/or persistence. PMID- 29018123 TI - Characterization of Inner and Outer Membrane Proteins from Francisella tularensis Strains LVS and Schu S4 and Identification of Potential Subunit Vaccine Candidates. AB - Francisella tularensis is the causative agent of tularemia and a potential bioterrorism agent. In the present study, we isolated, identified, and quantified the proteins present in the membranes of the virulent type A strain, Schu S4, and the attenuated type B strain, LVS (live vaccine strain). Spectral counting of mass spectrometric data showed enrichment for membrane proteins in both strains. Mice vaccinated with whole LVS membranes encapsulated in poly (lactic-co-glycolic acid) (PLGA) nanoparticles containing the adjuvant polyinosinic-polycytidylic acid [poly(I.C)] showed significant protection against a challenge with LVS compared to the results seen with naive mice or mice vaccinated with either membranes or poly(I.C) alone. The PLGA-encapsulated Schu S4 membranes with poly(I.C) alone did not significantly protect mice from a lethal intraperitoneal challenge with Schu S4; however, this vaccination strategy provided protection from LVS challenge. Mice that received the encapsulated Schu S4 membranes followed by a booster of LVS bacteria showed significant protection with respect to a lethal Schu S4 challenge compared to control mice. Western blot analyses of the sera from the Schu S4-vaccinated mice that received an LVS booster showed four immunoreactive bands. One of these bands from the corresponding one dimensional (1D) SDS-PAGE experiment represented capsule. The remaining bands were excised, digested with trypsin, and analyzed using mass spectrometry. The most abundant proteins present in these immunoreactive samples were an outer membrane OmpA-like protein, FopA; the type IV pilus fiber building block protein; a hypothetical membrane protein; and lipoproteins LpnA and Lpp3. These proteins should serve as potential targets for future recombinant protein vaccination studies.IMPORTANCE The low infectious dose, the high potential mortality/morbidity rates, and the ability to be disseminated as an aerosol make Francisella tularensis a potential agent for bioterrorism. These characteristics led the Centers for Disease Control (CDC) to classify F. tularensis as a Tier 1 pathogen. Currently, there is no vaccine approved for general use in the United States. PMID- 29018125 TI - More than Enzymes That Make or Break Cyclic Di-GMP-Local Signaling in the Interactome of GGDEF/EAL Domain Proteins of Escherichia coli. AB - The bacterial second messenger bis-(3'-5')-cyclic diguanosine monophosphate (c-di GMP) ubiquitously promotes bacterial biofilm formation. Intracellular pools of c di-GMP seem to be dynamically negotiated by diguanylate cyclases (DGCs, with GGDEF domains) and specific phosphodiesterases (PDEs, with EAL or HD-GYP domains). Most bacterial species possess multiple DGCs and PDEs, often with surprisingly distinct and specific output functions. One explanation for such specificity is "local" c-di-GMP signaling, which is believed to involve direct interactions between specific DGC/PDE pairs and c-di-GMP-binding effector/target systems. Here we present a systematic analysis of direct protein interactions among all 29 GGDEF/EAL domain proteins of Escherichia coli Since the effects of interactions depend on coexpression and stoichiometries, cellular levels of all GGDEF/EAL domain proteins were also quantified and found to vary dynamically along the growth cycle. Instead of detecting specific pairs of interacting DGCs and PDEs, we discovered a tightly interconnected protein network of a specific subset or "supermodule" of DGCs and PDEs with a coregulated core of five hyperconnected hub proteins. These include the DGC/PDE proteins representing the c-di-GMP switch that turns on biofilm matrix production in E. coli Mutants lacking these core hub proteins show drastic biofilm-related phenotypes but no changes in cellular c-di-GMP levels. Overall, our results provide the basis for a novel model of local c-di-GMP signaling in which a single strongly expressed master PDE, PdeH, dynamically eradicates global effects of several DGCs by strongly draining the global c-di-GMP pool and thereby restricting these DGCs to serving as local c-di-GMP sources that activate specific colocalized effector/target systems.IMPORTANCE c-di-GMP signaling in bacteria is believed to occur via changes in cellular c-di-GMP levels controlled by antagonistic and potentially interacting pairs of diguanylate cyclases (DGCs) and c-di-GMP phosphodiesterases (PDEs). Our systematic analysis of protein-protein interaction patterns of all 29 GGDEF/EAL domain proteins of E. coli, together with our measurements of cellular c-di-GMP levels, challenges both aspects of this current concept. Knocking out distinct DGCs and PDEs has drastic effects on E. coli biofilm formation without changing the cellular c-di-GMP level. In addition, rather than generally coming in interacting DGC/PDE pairs, a subset of DGCs and PDEs operates as central interaction hubs in a larger "supermodule," with other DGCs and PDEs behaving as "lonely players" without contacts to other c-di-GMP related enzymes. On the basis of these data, we propose a novel concept of "local" c-di-GMP signaling in bacteria with multiple enzymes that make or break the second messenger c-di-GMP. PMID- 29018128 TI - Island Sign: An Imaging Predictor for Early Hematoma Expansion and Poor Outcome in Patients With Intracerebral Hemorrhage. AB - BACKGROUND AND PURPOSE: The aim of the study was to investigate the usefulness of the computed tomography (CT) island sign for predicting early hematoma growth and poor functional outcome. METHODS: We included patients with spontaneous intracerebral hemorrhage (ICH) who had undergone baseline CT within 6 hours after ICH symptom onset in our hospital between July 2011 and September 2016. Two readers independently assessed the presence of the island sign on the admission noncontrast CT scan. Multivariable logistic regression analysis was used to analyze the association between the presence of the island sign on noncontrast admission CT and early hematoma growth and functional outcome. RESULTS: A total of 252 patients who met the inclusion criteria were analyzed. Among them, 41 (16.3%) patients had the island sign on baseline noncontrast CT scans. In addition, the island sign was observed in 38 of 85 patients (44.7%) with hematoma growth. Multivariate logistic regression analysis demonstrated that the time to baseline CT scan, initial hematoma volume, and the presence of the island sign on baseline CT scan independently predicted early hematoma growth. The sensitivity of the island sign for predicting hematoma expansion was 44.7%, specificity 98.2%, positive predictive value 92.7%, and negative predictive value 77.7%. After adjusting for the patients' age, baseline Glasgow Coma Scale score, presence of intraventricular hemorrhage, presence of subarachnoid hemorrhage, admission systolic blood pressure, baseline ICH volume, and infratentorial location, the presence of the island sign (odds ratio, 3.51; 95% confidence interval, 1.26-9.81; P=0.017) remained an independent predictor of poor outcome in patients with ICH. CONCLUSIONS: The island sign is a reliable CT imaging marker that independently predicts hematoma expansion and poor outcome in patients with ICH. The noncontrast CT island sign may serve as a potential marker for therapeutic intervention. PMID- 29018126 TI - Systematic Identification of Mycobacterium tuberculosis Effectors Reveals that BfrB Suppresses Innate Immunity. AB - Mycobacterium tuberculosis (Mtb) has evolved multiple strategies to counter the human immune system. The effectors of Mtb play important roles in the interactions with the host. However, because of the lack of highly efficient strategies, there are only a handful of known Mtb effectors, thus hampering our understanding of Mtb pathogenesis. In this study, we probed Mtb proteome microarray with biotinylated whole-cell lysates of human macrophages, identifying 26 Mtb membrane proteins and secreted proteins that bind to macrophage proteins. Combining GST pull-down with mass spectroscopy then enabled the specific identification of all binders. We refer to this proteome microarray-based strategy as SOPHIE (Systematic unlOcking of Pathogen and Host Interacting Effectors). Detailed investigation of a novel effector identified here, the iron storage protein BfrB (Rv3841), revealed that BfrB inhibits NF-kappaB-dependent transcription through binding and reducing the nuclear abundance of the ribosomal protein S3 (RPS3), which is a functional subunit of NF- kappaB. The importance of this interaction was evidenced by the promotion of survival in macrophages of the mycobacteria, Mycobacterium smegmatis, by overexpression of BfrB. Thus, beyond demonstrating the power of SOPHIE in the discovery of novel effectors of human pathogens, we expect that the set of Mtb effectors identified in this work will greatly facilitate the understanding of the pathogenesis of Mtb, possibly leading to additional potential molecular targets in the battle against tuberculosis. PMID- 29018127 TI - Bosutinib Attenuates Inflammation via Inhibiting Salt-Inducible Kinases in Experimental Model of Intracerebral Hemorrhage on Mice. AB - BACKGROUND AND PURPOSE: Intracerebral hemorrhage (ICH) is a subtype of stroke with highest mortality and morbidity. Pronounced inflammation plays a significant role in the development of the secondary brain injury after ICH. Recently, SIK-2 (salt-inducible kinase-2) was identified as an important component controlling inflammatory response. Here we sought to investigate the role of SIK-2 in post ICH inflammation and potential protective effects of SIK-2 inhibition after ICH. METHODS: Two hundred and ninety-three male CD-1 mice were used. ICH was induced via injection of 30 MUL of autologous blood. Recombinant SIK-2 was administrated 1 hour after ICH intracerebroventricularly. SIK-2 small interfering RNA was injected intracerebroventricularly 24 hours before ICH. Bosutinib, a clinically approved tyrosine kinase inhibitor with affinity to SIK-2, was given intranasally 1 hour or 6 hours after ICH. Effects of treatments were evaluated by neurological tests and brain water content calculation. Molecular pathways were investigated by Western blots and immunofluorescence studies. RESULTS: Endogenous SIK-2 was expressed in microglia and neurons. SIK-2 expression was reduced after ICH. Exogenous SIK-2 aggravated post-ICH inflammation, leading to brain edema and the neurobehavioral deficits. SIK-2 inhibition attenuated post-ICH inflammation, reducing brain edema and ameliorating neurological dysfunctions. Bosutinib inhibited SIK-2-attenuating ICH-induced brain damage. Protective effects of Bosutinib were mediated, at least partly, by CRTC3 (cyclic amp-response element binding protein-regulated transcription coactivator 3)/cyclic amp-response element binding protein/NF-kappaB (nuclear factor-kappaB) pathway. CONCLUSIONS: SIK-2 participates in inflammation induction after ICH. SIK-2 inhibition via Bosutinib or small interfering RNA decreased inflammation, attenuating brain injury. SIK-2 effects are, at least partly, mediated by CRTC3-cyclic amp-response element binding protein-NF-kappaB signaling pathway. PMID- 29018130 TI - Mechanical Thrombectomy in Perioperative Strokes: A Case-Control Study. AB - BACKGROUND AND PURPOSE: Perioperative strokes (POS) are rare but serious complications for which mechanical thrombectomy could be beneficial. We aimed to compare the technical results and patients outcomes in a population of POS versus non-POS (nPOS) treated by mechanical thrombectomy. METHODS: From 2010 to 2017, 25 patients with POS (ie, acute ischemic stroke occurring during or within 30 days after a procedure) who underwent mechanical thrombectomy (POS group) were enrolled and paired with 50 consecutive patients with nPOS (control group), based on the occlusion's site, National Institute of Health Stroke Scale, and age. RESULTS: Respectively, mean age was 68.3+/-16.6 versus 67.2+/-16.6 years (P=0.70), and median National Institute of Health Stroke Scale score at admission was 20 (interquartile range, 15-25) versus 19 (interquartile range, 17-25; P=0.79). Good clinical outcome (modified Rankin Scale score of 0-2 at 3 months) was achieved by 33.3% (POS) versus 56.5% (nPOS) of patients (P=0.055). Successful reperfusion (modified Thrombolysis In Cerebral Infarction score of >=2b) was obtained in 76% (POS) versus 86% (nPOS) of cases (P=0.22). Mortality at 3 months was 33.3% in the POS group versus 4.2% (nPOS) (P=0.002). The rate of major procedural complications was 4% (POS) versus 6% (nPOS); none were lethal. Average time from symptoms' onset to reperfusion was 4.9 hours (+/-2.0) in POS versus 5.2 hours (+/-2.6). CONCLUSIONS: Successful reperfusion seems accessible in POS within a reasonable amount of time and with a good level of safety. However, favorable outcome was achieved with a lower rate than in nPOS, owing to a higher mortality rate. PMID- 29018129 TI - Neuroimaging Correlates of Cerebral Microbleeds: The ARIC Study (Atherosclerosis Risk in Communities). AB - BACKGROUND AND PURPOSE: Cerebral microbleed (CMB) location (deep versus strictly lobar) may elucidate underlying pathology with deep CMBs being more associated with hypertensive vascular disease and lobar CMBs being more associated with cerebral amyloid angiopathy. The objective of this study was to determine whether neuroimaging signs of vascular disease and Alzheimer pathology are associated with different types of CMBs. METHODS: Among 1677 nondemented ARIC (Atherosclerosis Risk in Communities) participants (mean age=76+/-5 years; 40% men; 26% black) with 3-Tesla MRI scans at the fifth examination (2011-2013), we fit multinomial logistic regression models to quantify relationships of brain volumes (Alzheimer disease signature regions, total gray matter, frontal gray matter, and white matter hyperintensity volumes), infarct frequencies (lacunar, nonlacunar, and total), and apolipoprotein E (number of epsilon4 alleles) with CMB location (none, deep/mixed, or strictly lobar CMBs). Models were weighted for the sample selection scheme and adjusted for age, sex, education, hypertension, ever smoking status, diabetes mellitus, race site membership, and estimated intracranial volume (brain volume models only). RESULTS: Deep/mixed and strictly lobar CMBs had prevalences of 8% and 16%, respectively. Larger white matter hyperintensity burden, greater total infarct frequency, smaller frontal volumes (in women only), and smaller total gray matter volume were associated with greater risk of both deep and lobar CMBs relative to no CMBs. Greater white matter hyperintensity volume was also associated with greater risk of deep relative to lobar CMBs. Higher lacunar and nonlacunar infarct frequencies were associated with higher risk of deep CMBs, whereas smaller Alzheimer disease signature region volume and apolipoprotein E epsilon4 homozygosity were associated with greater risk of lobar CMBs. CONCLUSIONS: CMBs are a common vascular pathology in the elderly. Markers of hypertensive small-vessel disease may contribute to deep CMBs while cerebral amyloid angiopathy may drive development of lobar CMBs. PMID- 29018131 TI - Incorporating Nonphysician Stroke Specialists Into the Stroke Team. PMID- 29018133 TI - Carotid Web (Intimal Fibromuscular Dysplasia) Has High Stroke Recurrence Risk and Is Amenable to Stenting. AB - BACKGROUND AND PURPOSE: Carotid webs have been increasingly recognized as a cause of recurrent stroke, but evidence remains scarce. We aim to report the clinical outcomes and first series of carotid stenting in a cohort of patients with strokes from symptomatic carotid webs. METHODS: Prospective and consecutive data of patients <65 years old with cryptogenic stroke admitted within September 2014 to May 2017. Carotid web was defined by a shelf-like/linear filling defect in the posterior internal carotid artery bulb by computed tomographic angiography. RESULTS: Twenty-four patients were identified (91.6% strokes/8.4% transient ischemic attacks [TIAs]). Median age was 46 (41-59) years, 61% were female, and 75% were black. Median National Institutes of Health Stroke Scale score was 10.5 (3.0-16.0) and ASPECTS (Alberta Stroke Program Early CT Score) was 8 (7-8). There were no parenchymal hemorrhages, and 96% of patients were independent at 3 months. All webs caused <50% stenosis. In patients with bilateral webs (58%), median ipsilateral web length was larger than contralateral (3.1 [3.0-4.5] mm versus 2.6 [1.85-2.9] mm; P=0.01), respectively. Twenty-nine percent of patients had thrombus superimposed on the symptomatic carotid web. A recurrent stroke/TIA involving the territory of the previously symptomatic web occurred in 7 (32%; 6 strokes/1 TIA) patients: 3 <1 week, 2 1 year of follow-up. Two recurrences occurred on dual antiplatelet therapy, 3 on antiplatelet monotherapy, 1 within 24 hours of thrombolysis, and 1 off antithrombotics. Median follow-up was 12.2 (8.0-18.0) months. Sixteen (66%) patients were stented at a median 12.2 (7.0-18.7) days after stroke with no periprocedural complications. No recurrent strokes/TIAs occurred in stented individuals (median follow-up of 4 [2.4-12.0] months). CONCLUSIONS: Carotid web is associated with high recurrent stroke/TIA risk, despite antithrombotic use, and is amenable to carotid stenting. PMID- 29018132 TI - One-Stop Management of Acute Stroke Patients: Minimizing Door-to-Reperfusion Times. AB - BACKGROUND AND PURPOSE: Intrahospital time delays significantly affect the neurological outcome of stroke patients with large-vessel occlusion. This study was conducted to determine whether a one-stop management can reduce intrahospital times of patients with acute large-vessel occlusion. METHODS: In this observational study, we report the first 30 consecutive stroke patients imaged and treated in the same room. As part of our protocol, we transported patients with a National Institutes of Health Stroke Scale score of >=10 directly to the angio suite, bypassing multidetector computed tomography (CT). Preinterventional imaging consisted of noncontrast flat detector CT and flat detector CT angiography, acquired with an angiography system. Patients with large-vessel occlusions remained on the angio table and were treated with mechanical thrombectomy; patients with small artery occlusions were treated with intravenous thrombolysis, whereas patients with an intracranial hemorrhage and stroke mimics were treated as per guidelines. Door-to-groin puncture times were recorded and compared with our past results. RESULTS: Thirty patients were transferred directly to our angio suite from June to December 2016. The time from symptom onset to admission was 105 minutes. Ischemic stroke was diagnosed in 22 of 30 (73%) patients, 4 of 30 (13.5%) had an intracranial hemorrhage, and 4 of 30 (13.5) were diagnosed with a Todd's paresis. Time from admission to groin puncture was 20.5 minutes. Compared with 44 patients imaged with multidetector CT in the first 6 months of 2016, door-to-groin times were significantly reduced (54.5 minutes [95% confidence interval, 47-61] versus 20.5 minutes [95% confidence interval, 17-26]). CONCLUSIONS: In this small series, a one-stop management protocol of selected stroke patients using latest generation flat detector CT led to a significant reduction of intrahospital times. PMID- 29018134 TI - Neuronal SIRT1 (Silent Information Regulator 2 Homologue 1) Regulates Glycolysis and Mediates Resveratrol-Induced Ischemic Tolerance. AB - BACKGROUND AND PURPOSE: Resveratrol, at least in part via SIRT1 (silent information regulator 2 homologue 1) activation, protects against cerebral ischemia when administered 2 days before injury. However, it remains unclear if SIRT1 activation must occur, and in which brain cell types, for the induction of neuroprotection. We hypothesized that neuronal SIRT1 is essential for resveratrol induced ischemic tolerance and sought to characterize the metabolic pathways regulated by neuronal Sirt1 at the cellular level in the brain. METHODS: We assessed infarct size and functional outcome after transient 60 minute middle cerebral artery occlusion in control and inducible, neuronal-specific SIRT1 knockout mice. Nontargeted primary metabolomics analysis identified putative SIRT1-regulated pathways in brain. Glycolytic function was evaluated in acute brain slices from adult mice and primary neuronal-enriched cultures under ischemic penumbra-like conditions. RESULTS: Resveratrol-induced neuroprotection from stroke was lost in neuronal Sirt1 knockout mice. Metabolomics analysis revealed alterations in glucose metabolism on deletion of neuronal Sirt1, accompanied by transcriptional changes in glucose metabolism machinery. Furthermore, glycolytic ATP production was impaired in acute brain slices from neuronal Sirt1 knockout mice. Conversely, resveratrol increased glycolytic rate in a SIRT1-dependent manner and under ischemic penumbra-like conditions in vitro. CONCLUSIONS: Our data demonstrate that resveratrol requires neuronal SIRT1 to elicit ischemic tolerance and identify a novel role for SIRT1 in the regulation of glycolytic function in brain. Identification of robust neuroprotective mechanisms that underlie ischemia tolerance and the metabolic adaptations mediated by SIRT1 in brain are crucial for the translation of therapies in cerebral ischemia and other neurological disorders. PMID- 29018135 TI - Corneal Confocal Microscopy Detects Corneal Nerve Damage in Patients Admitted With Acute Ischemic Stroke. AB - BACKGROUND AND PURPOSE: Corneal confocal microscopy can identify corneal nerve damage in patients with peripheral and central neurodegeneration. However, the use of corneal confocal microscopy in patients presenting with acute ischemic stroke is unknown. METHODS: One hundred thirty patients (57 without diabetes mellitus [normal glucose tolerance], 32 with impaired glucose tolerance, and 41 with type 2 diabetes mellitus) admitted with acute ischemic stroke, and 28 age matched healthy control participants underwent corneal confocal microscopy to quantify corneal nerve fiber density, corneal nerve branch density, and corneal nerve fiber length. RESULTS: There was a significant reduction in corneal nerve fiber density, corneal nerve branch density, and corneal nerve fiber length in stroke patients with normal glucose tolerance (P<0.001, P<0.001, P<0.001), impaired glucose tolerance (P=0.004, P<0.001, P=0.002), and type 2 diabetes mellitus (P<0.001, P<0.001, P<0.001) compared with controls. HbA1c and triglycerides correlated with corneal nerve fiber density (r=-0.187, P=0.03; r= 0.229 P=0.01), corneal nerve fiber length (r=-0.228, P=0.009; r=-0.285; P=0.001), and corneal nerve branch density (r=-0.187, P=0.033; r=-0.229, P=0.01). Multiple linear regression showed no independent associations between corneal nerve fiber density, corneal nerve branch density, and corneal nerve fiber length and relevant risk factors for stroke. CONCLUSIONS: Corneal confocal microscopy is a rapid noninvasive ophthalmic imaging technique that identifies corneal nerve fiber loss in patients with acute ischemic stroke. PMID- 29018136 TI - Dietary Sodium to Potassium Ratio and Risk of Stroke in a Multiethnic Urban Population: The Northern Manhattan Study. AB - BACKGROUND AND PURPOSE: There is growing evidence that increased dietary sodium (Na) intake increases the risk of vascular diseases, including stroke, at least in part via an increase in blood pressure. Higher dietary potassium (K), seen with increased intake of fruits and vegetables, is associated with lower blood pressure. The goal of this study was to determine the association of a dietary Na:K with risk of stroke in a multiethnic urban population. METHODS: Stroke-free participants from the Northern Manhattan Study, a population-based cohort study of stroke incidence, were followed-up for incident stroke. Baseline food frequency questionnaires were analyzed for Na and K intake. We estimated the hazard ratios and 95% confidence intervals for the association of Na:K with incident total stroke using multivariable Cox proportional hazards models. RESULTS: Among 2570 participants with dietary data (mean age, 69+/-10 years; 64% women; 21% white; 55% Hispanic; 24% black), the mean Na:K ratio was 1.22+/-0.43. Over a mean follow-up of 12 years, there were 274 strokes. In adjusted models, a higher Na:K ratio was associated with increased risk for stroke (hazard ratio, 1.6; 95% confidence interval, 1.2-2.1) and specifically ischemic stroke (hazard ratio, 1.6; 95% confidence interval, 1.2-2.1). CONCLUSIONS: Na:K intake is an independent predictor of stroke risk. Further studies are required to understand the joint effect of Na and K intake on risk of cardiovascular disease. PMID- 29018137 TI - Incidence and Outcomes of Myocardial Infarction in Patients Admitted With Acute Ischemic Stroke. AB - BACKGROUND AND PURPOSE: Data on the incidence and outcomes of acute myocardial infarction (AMI) complicating acute ischemic stroke (AIS) are limited. We aim to evaluate the incidence, treatment patterns, and outcomes of AMI in patients with AIS using a nationwide database. METHODS: The National Inpatient Sample was used to identify patient with AIS between 2003 and 2014. Trends of incidence of AMI and its associated in-hospital mortality were evaluated. Univariate and multivariate logistic regressions were used to evaluate predictors of AMI. The impact of AMI on in-hospital outcomes was assessed in a comparative analysis of propensity-matched groups of patients with and without AMI. RESULTS: Patients with AIS (n=864 043) were identified in the national inpatient sample, of whom 13 573 patients (1.6%) had an AMI (79.5% non-ST-segment-elevation myocardial infarction and 20.5% ST-segment-elevation myocardial infarction). In-hospital mortality was 21.4% and 7.1% in propensity-matched cohorts of patients with and without AMI, P<0.001. In-hospital length of stay and cost of care were 50% higher in the AMI group. In a multivariate logistical regression analysis, the strongest predictors of having AMI after AIS were older age, history of coronary artery disease, chronic renal insufficiency, undergoing mechanical thrombectomy, and rhythm and conduction abnormalities. In the AMI group, undergoing coronary angiography and undergoing percutaneous coronary intervention both strongly correlated with lower in-hospital mortality (odds ratio, 0.34 [confidence interval, 0.23-0.51] and 0.26 [confidence interval, 0.20-0.34], respectively, P<0.001). However, these were only performed in 7.5% and 2% of patients, respectively. CONCLUSIONS: AMI complicating stroke carries a substantial in hospital mortality and cost of care. Patients who underwent coronary angiography with or without intervention may have improved survival although it was only utilized in a minority of patients. Further studies needed to discern the ideal approach in AMI in patients with AIS. PMID- 29018138 TI - Endotoxin Preconditioning Reprograms S1 Tubules and Macrophages to Protect the Kidney. AB - Preconditioning with a low dose of endotoxin confers unparalleled protection against otherwise lethal models of sepsis. The mechanisms of preconditioning have been investigated extensively in isolated immune cells such as macrophages. However, the role of tissue in mediating the protective response generated by preconditioning remains unknown. Here, using the kidney as a model organ, we investigated cell type-specific responses to preconditioning. Compared with preadministration of vehicle, endotoxin preconditioning in the cecal ligation and puncture mouse model of sepsis led to significantly enhanced survival and reduced bacterial load in several organs. Furthermore, endotoxin preconditioning reduced serum levels of proinflammatory cytokines, upregulated molecular pathways involved in phagocytosis, and prevented the renal function decline and injury induced in mice by a toxic dose of endotoxin. The protective phenotype involved the clustering of macrophages around S1 segments of proximal tubules, and full renal protection required both macrophages and renal tubular cells. Using unbiased S1 transcriptomic and tissue metabolomic approaches, we identified multiple protective molecules that were operative in preconditioned animals, including molecules involved in antibacterial defense, redox balance, and tissue healing. We conclude that preconditioning reprograms macrophages and tubules to generate a protective environment, in which tissue health is preserved and immunity is controlled yet effective. Endotoxin preconditioning can thus be used as a discovery platform, and understanding the role and participation of both tissue and macrophages will help refine targeted therapies for sepsis. PMID- 29018139 TI - ShcA Adaptor Protein Promotes Nephrin Endocytosis and Is Upregulated in Proteinuric Nephropathies. AB - Nephrin is a key structural component of the podocyte slit diaphragm, and proper expression of nephrin on the cell surface is critical to ensure integrity of the blood filtration barrier. Maintenance of nephrin within this unique cell junction has been proposed to require dynamic phosphorylation events and endocytic recycling, although the molecular mechanisms that control this interplay are poorly understood. Here, we investigated the possibility that the phosphotyrosine adaptor protein ShcA regulates nephrin turnover. Western blotting and immunostaining analysis confirmed that ShcA is expressed in podocytes. In immunoprecipitation and pulldown assays, ShcA, via its SH2 domain, was associated with several phosphorylated tyrosine residues on nephrin. Overexpression of ShcA promoted nephrin tyrosine phosphorylation and reduced nephrin signaling and cell surface expression in vitro In a rat model of reversible podocyte injury and proteinuria, phosphorylated nephrin temporally colocalized with endocytic structures coincident with upregulation of ShcA expression. In vivo biotinylation assays confirmed that nephrin expression decreased at the cell surface and correspondingly increased in the cytosol during the injury time course. Finally, immunostaining in kidney biopsy specimens demonstrated overexpression of ShcA in several human proteinuric kidney diseases compared with normal conditions. Our results suggest that increases in ShcA perturb nephrin phosphosignaling dynamics, leading to aberrant nephrin turnover and slit diaphragm disassembly. PMID- 29018140 TI - Incident CKD after Radical or Partial Nephrectomy. AB - The comparative effectiveness of partial nephrectomy versus radical nephrectomy to preserve kidney function has not been well established. We determined the risk of clinically significant (stage 4 and higher) CKD after radical or partial nephrectomy among veterans treated for kidney cancer in the Veterans Health Administration (2001-2013). Among patients with preoperative eGFR>=30 ml/min per 1.73 m2, the incidence of CKD stage 4 or higher after radical (n=9759) or partial nephrectomy (n=4370) was 7.9% overall. The median time to stage 4 or higher CKD after surgery was 5 months, after which few patients progressed. In propensity score-matched cohorts, partial nephrectomy associated with a significantly lower relative risk of incident CKD stage 4 or higher (hazard ratio, 0.34; 95% confidence interval [95% CI], 0.26 to 0.43, versus radical nephrectomy). In a parallel analysis of patients with normal or near-normal preoperative kidney function (eGFR>=60 ml/min per 1.73 m2), partial nephrectomy was also associated with a significantly lower relative risk of incident CKD stage 3b or higher (hazard ratio, 0.15; 95% CI, 0.11 to 0.19, versus radical nephrectomy) in propensity score-matched cohorts. Competing risk regression models produced consistent results. Finally, patients treated with a partial nephrectomy had reduced risk of mortality (hazard ratio, 0.55; 95% CI, 0.49 to 0.62). In conclusion, compared with radical nephrectomy, partial nephrectomy was associated with a marked reduction in the incidence of clinically significant CKD and with enhanced survival. Postoperative decline in kidney function occurred mainly in the first year after surgery and appeared stable over time. PMID- 29018141 TI - Vitamin D regulation of GDNF/Ret signaling in dopaminergic neurons. AB - 1,25(OH)2D3 (vitamin D) appears essential for the normal development of dopaminergic neurons. Vitamin D affects dopamine synthesis and metabolism as well as expression of glial cell line-derived neurotrophic factor (GDNF), which is crucial for the survival of dopaminergic neurons. We investigated the role of vitamin D on GDNF and its receptors protooncogene tyrosine-protein kinase receptor Ret (C-Ret) and GDNF family receptor alpha 1 (GFRalpha1) signaling. To this end, we used a developmental vitamin D-deficient rat model and SH-SY5Y cells transfected with vitamin D receptor (VDR). The absence of vitamin D ligand in gestation reduces C-Ret expression, but not GDNF and GFRalpha1, in embryo forebrains. Overexpression of VDR in SH-SY5Y in the absence of ligand (mimicking in vivo developmental vitamin D deficiency) also suppressed C-Ret mRNA levels. In the presence of vitamin D, C-Ret mRNA and protein expression were increased. The chromatin immunoprecipitation results suggested that C-Ret is directly regulated by vitamin D via VDR. GDNF was also increased by vitamin D in these cells. Our small interfering RNA studies showed that knocking down VDR leads to an increase in C-Ret in the absence of ligand. Finally, we confirmed the inverse relationship between GFRalpha1 and C-Ret, as knocking down C-Ret led to increases in GFRalpha1 expression. These data extend our knowledge of the diverse and important roles played by vitamin D in dopamine physiology.-Pertile, R. A. N., Cui, X., Hammond, L., Eyles, D. W. Vitamin D regulation of GDNF/Ret signaling in dopaminergic neurons. PMID- 29018142 TI - Adiponectin has a pivotal role in the cardioprotective effect of CP-3(iv), a selective CD36 azapeptide ligand, after transient coronary artery occlusion in mice. AB - CD36 is a multiligand receptor involved in lipid metabolism. We investigated the mechanisms underlying the cardioprotective effect of CP-3(iv), an azapeptide belonging to a new class of selective CD36 ligands. The role of CP-3(iv) in mediating cardioprotection was investigated because CD36 signaling leads to activation of peroxisome proliferator-activated receptor-gamma, a transcriptional regulator of adiponectin. CP-3(iv) pretreatment reduced infarct size by 54% and preserved hemodynamics in C57BL/6 mice subjected to 30 min coronary ligation and reperfusion but had no effect in CD36-deficient mice. The effects of CP-3(iv) were associated with an increase in circulating adiponectin levels, epididymal fat adiponectin gene expression, and adiponectin transcriptional regulators ( Pparg, Cebpb, Sirt1) after 6 h of reperfusion. Reduced myocardial oxidative stress and apoptosis were observed along with an increase in expression of myocardial adiponectin target proteins, including cyclooxygenase-2, phospho-AMPK, and phospho-Akt. Moreover, CP-3(iv) increased myocardial performance in isolated hearts, whereas blockade of adiponectin with an anti-adiponectin antibody abrogated it. CP-3(iv) exerts cardioprotection against myocardial ischemia and reperfusion (MI/R) injury and dysfunction, at least in part, by increasing circulating and myocardial adiponectin levels. Hence, both paracrine and endocrine effects of adiponectin may contribute to reduced reactive oxygen species generation and apoptosis after MI/R, in a CD36-dependent manner.-Huynh, D. N., Bessi, V. L., Menard, L., Piquereau, J., Proulx, C., Febbraio, M., Lubell, W. D., Carpentier, A. C., Burelle, Y., Ong, H., Marleau, S. Adiponectin has a pivotal role in the cardioprotective effect of CP-3(iv), a selective CD36 azapeptide ligand, after transient coronary artery occlusion in mice. PMID- 29018144 TI - Ogilvie's syndrome treated with an emergency laparotomy, right hemicolectomy and end ileostomy. AB - Acute colonic pseudo-obstruction (ACPO), or Ogilvie's syndrome, is a rare clinical entity in which there is massive non-toxic colonic dilatation in the absence of a mechanically obstructing lesion. It is an important yet poorly recognised cause of surgical morbidity and mortality occurring typically in elderly patients with multiple comorbidities. ACPO can often be reversed conservatively with colonoscopic or nasogastric decompression. Surgical intervention is seldom necessary. We present a case of Ogilvie's syndrome in which a healthy 76-year-old man developed life-threatening pseudo-obstruction following rib polytrauma after a mechanical fall. Pneumatosis coli was evident radiologically, prompting emergency exploratory laparotomy. Operative findings of serosal tearing and ischaemic colitis necessitated treatment with right hemicolectomy and ileostomy formation. Microbiological and histopathological analyses proved negative for inflammatory, obstructive and infectious colitides. The case emphasises the importance of early recognition and timely intervention in the management of this rare yet potentially fatal cause of megacolon. PMID- 29018143 TI - Knee upside down. AB - We present a case of a 19-year-old woman with a forced hyperextension trauma of the knee causing a posteromedial fracture, a medial meniscus root tear and rupture of the posterior cruciate ligament. The posteromedial fracture of the tibial plateau was treated operatively with open reduction and internal fixation. Anatomical reconstruction was achieved. Postoperative treatment included unlimited flexion and minimal weight bearing. After 3 months, the patient had minimal pain after weight bearing and returned to preoperative range of motion. PMID- 29018145 TI - Acute pancreatitis with eruptive xanthoma. AB - Eruptive xanthomas are benign skin lesions caused by localised deposition of lipids in the dermis. Xanthomas can present as early manifestations of systemic disorders, which are typically caused by elevated levels of serum triglycerides and uncontrolled diabetes. Early recognition and treatment of the underlying condition decreases morbidity and mortality. After treatment of the underlying metabolic disorders, lesions mostly disappear without leaving scars. We present a case with multiple yellowish, erythematous papules on the extremities suggestive of eruptive xanthomas admitted to our hospital with acute pancreatitis. PMID- 29018146 TI - ANCA and IgA glomerulonephritis all in one: prognosis and complications. AB - We present the case of a 75-year-old Hispanic woman with known stage 3 chronic kidney disease, long-standing hypertension and type 2 diabetes mellitus who presented with right-sided abdominal pain and acute kidney injury, nephrotic range proteinuria with positive antimyeloperoxidase antibody. A renal biopsy revealed IgA nephropathy with superimposed pauci-immune antineutrophilic cytoplasmic antibody (ANCA)-associated crescentic glomerulonephritis. The patient was treated with pulse intravenous methylprednisolone, cyclophosphamide and plasmapheresis. One week after her second dose of cyclophosphamide, she was readmitted for infectious complications including influenza A respiratory infection, Rothia bacteraemia associated with diarrhoea and herpes zoster of the trunk. In this report, we review the prevalence, treatment and prognosis of coexistent IgA nephropathy and pauci-immune ANCA-associated crescentic glomerulonephritis. We propose that a reduced-dose treatment regimen should be considered in elderly patients due to their higher risk of infectious complications. Current literature suggests that this treatment approach may reduce infectious complications without compromising therapeutic efficacy. PMID- 29018147 TI - Acute lymphoblastic leukemia relapse after CD19-targeted chimeric antigen receptor T cell therapy. AB - CART19 therapy has revolutionized the treatment of CD19+ acute lymphoblastic leukemia, demonstrating an unprecedented complete remission rate; however, as follow-up prolongs, a high relapse rate after CART19 therapy has emerged as one of the major problems. Relapse can be attributed to the loss of leukemic cell immunogenicity, diminished function and amount of CART19 cells, and the inhibitory bone marrow microenvironment. Although studies to prevent and treat relapse have begun, some encouraging results have demonstrated the possibility of decreasing the relapse rate. In this review, we focus on the possible mechanisms behind relapse. We will summarize and propose strategies to prevent and manage relapse on the basis of these potential mechanisms. PMID- 29018148 TI - Suppression of CYP1 members of the AHR response by pathogen-associated molecular patterns. AB - The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that triggers a broad response, which includes the regulation of proinflammatory cytokine production by monocytes and macrophages. AHR is negatively regulated by a set of genes that it transcriptionally activates, including the AHR repressor (Ahrr) and the cytochrome P450 1 (Cyp1) family, which are critical for preventing exacerbated AHR activity. An imbalance in these regulatory mechanisms has been shown to cause severe defects in lymphoid cells. Therefore, we wanted to assess how AHR activation is regulated in monocytes and macrophages in the context of innate immune responses induced by pathogen-associated molecular patterns (PAMPs). We found that concomitant stimulation of primary human monocytes with PAMPs and the AHR agonist 6-formylindolo(3,2-b)carbazole (FICZ) led to a selective dose-dependent inhibition of Cyp1 family members induction. Two other AHR-dependent genes [Ahrr and NADPH quinone dehydrogenase 1 (Nqo1)] were not affected under these conditions, suggesting a split in the AHR regulation by PAMPs. This down-regulation of Cyp1 family members did not require de novo protein production nor signaling through p38, ERK, or PI3K-Akt-mammalian target of rapamycin (mTOR) pathways. Furthermore, such a split regulation of the AHR response was more apparent in GM-CSF-derived macrophages, a finding corroborated at the functional level by decreased CYP1 activity and decreased proinflammatory cytokine production in response to FICZ and LPS. Collectively, our findings identify a role for pattern recognition receptor (PRR) signaling in regulating the AHR response through selective down-regulation of Cyp1 expression in human monocytes and macrophages. PMID- 29018149 TI - Hypothesis: stimulation of trained immunity as adjunctive immunotherapy in cancer. AB - Cancer immunotherapy has steadily progressed during the past decades, with checkpoint inhibitor therapy becoming the latest and one of the most promising treatments. Despite the progress, most of the patients do not respond or develop resistance, and novel additional approaches are needed to improve the clinical effectiveness of immunotherapy. Trained immunity (TI) has been described recently as a process of epigenetic and metabolic reprogramming that induces a long-term enhanced function of innate immune cells. TI is considered to have beneficial effects in improving host response to infections and vaccination, and increasing evidence suggests that TI-mediated mechanisms also have useful and potent antitumor effects. We hypothesized that novel and more effective approaches for immunotherapy in cancer may involve induction of TI, alone or in combination with current immunotherapies. PMID- 29018151 TI - Correction: PRMT5-Selective Inhibitors Suppress Inflammatory T Cell Responses and Experimental Autoimmune Encephalomyelitis. PMID- 29018152 TI - Correction: Cutting Edge: Helminth Coinfection Blocks Effector Differentiation of CD8 T Cells through Alternate Host Th2- and IL-10-Mediated Responses. PMID- 29018150 TI - The calcineurin-NFAT axis contributes to host defense during Pseudomonas aeruginosa lung infection. AB - Infection with the opportunistic pathogen Pseudomonas aeruginosa is effectively controlled through tightly coordinated inflammation in healthy individuals. Dysregulated inflammation in cystic fibrosis greatly increases susceptibility to P. aeruginosa and lung damage. Recently, we identified regulator of calcineurin 1, a small, conserved protein that suppresses the NFAT pathway by inhibition of calcineurin and functions as a central negative regulator of multiple inflammatory transcription factors after P. aeruginosa lung infection, implying a role for the canonical NFAT pathway in P. aeruginosa infection. Calcineurin is a calcium-calmodulin-responsive phosphatase that dephosphorylates NFAT and promotes NFAT nuclear translocation and transcriptional activity. The contribution of the NFAT pathway to host defense against P. aeruginosa remains poorly characterized. In this study, we found that NFAT was rapidly and transiently activated after P. aeruginosa infection both in vitro and in vivo. Deficiency of calcineurin Abeta caused impaired activation of NFAT and decreased inflammatory cytokine production in vivo. Finally, we demonstrated that the cross-talk between the NFAT and NFkB pathways coordinately transactivate host response genes during P. aeruginosa infection. Together, these results demonstrate for the first time that NFAT is activated through calcineurin and interacts with NFkB after P. aeruginosa lung infection, and contributes to the host inflammatory response. PMID- 29018153 TI - Prednisolone has the same cardiovascular risk profile as hydrocortisone in glucocorticoid replacement. AB - INTRODUCTION: Patients who need glucocorticoid replacement in both primary and secondary adrenal insufficiency (AI) have the choice of either once-daily prednisolone or thrice-daily hydrocortisone. A recent European study found no difference between prednisolone and hydrocortisone users in several markers including glucose, weight, body mass index, systolic and diastolic blood pressure and waist circumference, although an increase in cholesterol and low-density lipoprotein (LDL) was suggested in a subgroup of these patients. The aim of this study was to expand the evidence base for the use of these agents as replacement therapy. METHODS: Data from 82 patients on hydrocortisone and 64 patients on prednisolone for AI at Imperial College Healthcare NHS Trust were analysed. RESULTS: There was no significant difference in total cholesterol, LDL levels or any other risk factors between hydrocortisone and prednisolone patients. Prednisolone was subjectively significantly more convenient than hydrocortisone (P = 0.048). CONCLUSIONS: Prednisolone once daily is more convenient than hydrocortisone thrice daily, and there is no difference in the markers of cardiovascular risk measured. Because prednisolone mimics the circadian rhythm better than other glucocorticoids, it should be considered as an alternative to hydrocortisone for AI. PMID- 29018154 TI - Usefulness of desmopressin testing to predict relapse during long-term follow-up in patients in remission from Cushing's disease. AB - Recurrence of Cushing's disease after successful transsphenoidal surgery occurs in some 30% of the patients and the response to desmopressin shortly after surgery has been proposed as a marker for disease recurrence. The aim of the present study was to evaluate the response to desmopressin over time after surgery. We tested 56 patients with Cushing's disease in remission after transsphenoidal surgery with desmopressin for up to 20 years after surgery. The ACTH and cortisol response to desmopressin over time was evaluated in patients on long-term remission or undergoing relapse; an increase by at least 27 pg/mL in ACTH levels identified responders. The vast majority of patients who underwent successful adenomectomy failed to respond to desmopressin after surgery and this response pattern was maintained over time in patients on long-term remission. Conversely, a response to desmopressin reappeared in patients who subsequently developed a recurrence of Cushing's disease, even years prior to frank hypercortisolism. It appears therefore that a change in the response pattern to desmopressin proves predictive of recurrence of Cushing's disease and may indicate which patients require close monitoring. PMID- 29018155 TI - Clinical characteristics of 138 Chinese female patients with idiopathic hypogonadotropic hypogonadism. AB - OBJECTIVE: To evaluate the clinical features of Chinese women with idiopathic hypogonadotropic hypogonadism (IHH). METHODS: We retrospectively reviewed the clinical characteristics, laboratory and imaging findings, therapeutic management and fertility outcomes of 138 women with IHH. All patients had been treated and followed up at an academic medical centre during 1990-2016. RESULTS: Among the 138 patients, 82 patients (59.4%) were diagnosed with normosmic IHH and 56 patients (40.6%) were diagnosed with Kallmann syndrome (KS). The patients with IHH experienced occasional menses (4.3%), spontaneous thelarche (45.7%) or spontaneous pubarche (50.7%). Women with thelarche had a higher percentage of pubarche (P < 0.001) and higher gonadotropin concentrations (P < 0.01). Olfactory bulb/sulci abnormalities were found during the magnetic resonance imaging (MRI) of all patients with KS. Most patients with IHH had osteopenia and low bone age. Among the 16 women who received gonadotropin-releasing hormone treatment, ovulation induction or assisted reproductive technology, the clinical pregnancy rate was 81.3% and the live birth rate was 68.8%. CONCLUSIONS: The present study revealed that the phenotypic spectrum of women with IHH is broader than typical primary amenorrhoea with no secondary sexual development, including occasional menses, spontaneous thelarche or pubarche. MRI of the olfactory system can facilitate the diagnosis of KS. Pregnancy can be achieved after receiving appropriate treatment. PMID- 29018157 TI - Can liquid-based preparation substitute for conventional smear in thyroid fine needle aspiration? A systematic review based on meta-analysis. AB - OBJECTIVE: Conventional smear (CS) using fine-needle aspiration cytology (FNAC) has been established as the test of choice for diagnosing thyroid lesions, despite low sample adequacy and inter-individual variations. Although a liquid based preparation (LBP) technique has been recently applied to overcome these limitations, its clinical utility and its accuracy over CS are controversial. This study aimed to determine the true sensitivity and specificity of LBP in thyroid FNAC by meta-analysis. DESIGN: Systematic review with meta-analysis. METHODS: We searched major electronic databases (MEDLINE, EMBASE, Cochrane library, Google Scholar) with queries of 'thyroid', 'LBP' and 'liquid-based cytology'. Original articles including cytohistologic correlation data comparing the accuracy of any LBP technique, such as ThinPrep, SurePath and Liqui-Prep, with CS were included for qualitative meta-analysis and preparation of synthesized reporter-operating curves (sROC). RESULTS: A total of 372 studies were screened and 51 original articles were eligible for full-text review; finally, 24 studies were chosen for the meta-analysis. Average sample inadequacy was significantly lower in two mainstream LBP methods (ThinPrep and SurePath) than CS. Specificity and sensitivity by sROC were similar or slightly superior for LBP vs CS. Various cytomorphologic changes by each method have been reported. CONCLUSIONS: Although a learning curve is essential for adapting to the cytomorphologic features of the LBP technique, our results support the use of two mainstream LBPs alone in thyroid FNAC that LBP will increase the sample adequacy and reduce the workload with similar accuracy. More data and further evaluation are needed for the other LBP methods. PMID- 29018156 TI - The effect of atorvastatin on pancreatic beta cell requirement in women with polycystic ovary syndrome. AB - BACKGROUND: There is an increased risk of developing T2DM in women with polycystic ovary syndrome (PCOS), and there is evidence that statins improve metabolic parameters in these patients. However, there are some data to show that statins increase the risk of incipient diabetes. MATERIALS AND METHODS: We have previously shown that 12 weeks of atorvastatin improves insulin resistance when measured using HOMA-IR. This post hoc analysis was designed to look at the effect of atorvastatin on pancreatic beta cell function using HOMA-beta in the same study. In this randomised, double-blind placebo controlled study, 40 medication naive patients with PCOS were randomised to either atorvastatin 20 mg daily or placebo for 3 months. A 3-month extension study for both groups of patients was undertaken with metformin 1500 mg daily after completing initial 3 months of atorvastatin or placebo. RESULTS: There was a significant reduction in HOMA-beta (240 +/- 3.2 vs 177 +/- 2.3; P value <0.01) after 12 weeks of atorvastatin treatment, which was maintained by metformin in the subsequent 12 weeks. There were no changes in HOMA-beta after the placebo or after subsequent metformin treatment.There was no linear correlation between reduction in HOMA-beta with improvement of free androgen index (FAI) (r2 = 0.02; P = 0.72), testosterone (r2 = 0.13; P = 0.49), SHBG (r2 = 0.22; P = 0.48), hsCRP (r2 = 0.19; P = 0.64), triglycerides (r2 = 0.09; P = 0.12), total cholesterol (r2 = 0.11; P = 0.32) or LDL-C (r2 = 0.19; P = 0.38). CONCLUSION: Treatment with atorvastatin for 12 weeks in women with PCOS significantly reduced HOMA-beta. This could be potentially due to fall in beta-cell requirement with improvement of insulin resistance rather than a reduction of beta-cell function. PMID- 29018159 TI - Phenomics of root system architecture: Measuring and analyzing root phenes (By Larry York and Guillaume Lobet). AB - Summaryplantcell;29/9/tpc.117.tt0917/FIG1F1fig1One of roots' key roles is to secure access to water and nutrients for the plant, often in a highly heterogeneous and challenging environment. To cope with such function, root systems have evolved as highly plastic, responsive and diverse organs. However, due to technical constraints, root research has long been stuck in its infancy. This teaching tool discusses the relatively young field of root system architecture quantification. It introduces the concepts of phenes (like genes, but referring to the phenotype), and architectural concepts including morphology, geometry, and topology. It concludes by discussing the practical considerations linked to the root system architecture quantification (including growth and sampling methods), and different data analysis methods. Posted September 20, 2017.Click HERE to access Teaching Tool Components. PMID- 29018158 TI - Suppression and Contrast Normalization in Motion Processing. AB - Sensory neurons are activated by a range of stimuli to which they are said to be tuned. Usually, they are also suppressed by another set of stimuli that have little effect when presented in isolation. The interactions between preferred and suppressive stimuli are often quite complex and vary across neurons, even within a single area, making it difficult to infer their collective effect on behavioral responses mediated by activity across populations of neurons. Here, we investigated this issue by measuring, in human subjects (three males), the suppressive effect of static masks on the ocular following responses induced by moving stimuli. We found a wide range of effects, which depend in a nonlinear and nonseparable manner on the spatial frequency, contrast, and spatial location of both stimulus and mask. Under some conditions, the presence of the mask can be seen as scaling the contrast of the driving stimulus. Under other conditions, the effect is more complex, involving also a direct scaling of the behavioral response. All of this complexity at the behavioral level can be captured by a simple model in which stimulus and mask interact nonlinearly at two stages, one monocular and one binocular. The nature of the interactions is compatible with those observed at the level of single neurons in primates, usually broadly described as divisive normalization, without having to invoke any scaling mechanism.SIGNIFICANCE STATEMENT The response of sensory neurons to their preferred stimulus is often modulated by stimuli that are not effective when presented alone. Individual neurons can exhibit multiple modulatory effects, with considerable variability across neurons even in a single area. Such diversity has made it difficult to infer the impact of these modulatory mechanisms on behavioral responses. Here, we report the effects of a stationary mask on the reflexive eye movements induced by a moving stimulus. A model with two stages, each incorporating a divisive modulatory mechanism, reproduces our experimental results and suggests that qualitative variability of masking effects in cortical neurons might arise from differences in the extent to which such effects are inherited from earlier stages. PMID- 29018160 TI - Dopamine dysregulation syndrome in Parkinson's disease: a systematic review of published cases. AB - OBJECTIVES: Dopamine dysregulation syndrome (DDS) is an uncommon complication of the treatment of Parkinson's disease, characterised by addictive behaviour and excessive use of dopaminergic medication. DDS may frequently go unrecognised or misdiagnosed. We aimed to clarify current understanding of presentation, risk factors, comorbidities and management of DDS. METHODS: Case reports were identified through a systematic search of databases (PubMed, Embase) with the following terms: dopaminergic dysregulation syndrome, hedonistic homeostatic dysregulation, dopamine/levodopa addiction. RESULTS: We reviewed 390 articles, identifying 98 cases of DDS. Early-onset Parkinson's disease (67%) and male gender (83%) were common. DDS presented with significant physical and social impairment, actions to enable or prevent detection of overuse, as well as mood, anxiety and motor fluctuations. All DDS cases met DSM-V (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition) substance use disorder criteria. Past substance and psychiatric history was present in 15.3% and 10.2% of cases. Comorbid impulse control disorders (61%), psychosis (32%) and panic attacks (14%) were common. A large variety of management strategies were used; only 56% of cases resolving. Sodium valproate was successful in 5/5 cases. The response to deep brain stimulation varied. CONCLUSIONS: Given the functional impairment, medical and psychiatric consequences and the difficulties of treatment, early identification of DDS should be a priority. PMID- 29018161 TI - High prevalence of the MYD88 L265P mutation in IgM anti-MAG paraprotein associated peripheral neuropathy. PMID- 29018162 TI - Clinical utility of amyloid PET imaging with (18)F-florbetapir: a retrospective study of 100 patients. AB - BACKGROUND AND OBJECTIVE: Amyloid-positron emission tomography (PET) imaging (API) detects amyloid-beta pathology early in the course of Alzheimer's disease (AD) with high sensitivity and specificity. (18)F-florbetapir (Amyvid) is an amyloid-binding PET ligand with a half-life suitable for clinical use outside of the research setting. How API affects patient investigation and management in the 'real-world' arena is unknown. To address this, we retrospectively documented the effect of API in patients in the memory clinic. METHODS: We reviewed the presenting clinical features, the pre-API and post-API investigations, diagnosis and outcomes for the first 100 patients who had API as part of their routine work up at the Imperial Memory Centre, a tertiary referral clinic in the UK National Health Service. RESULTS: API was primarily used to investigate patients with atypical clinical features (56 cases) or those that were young at onset (42 cases). MRI features of AD did not always predict positive API (67%), and 6 of 23 patients with MRIs reported as normal were amyloid-PET positive. There were significantly more cases categorised as non-AD dementia post-API (from 11 to 23). Patients investigated when API was initially available had fewer overall investigations and all patients had significantly fewer investigations in total post-API. CONCLUSIONS: API has a clear impact on the investigation of young-onset or complex dementia while reducing the overall burden of investigations. It was most useful in younger patients, atypical presentations or individuals with multiple possible causes of cognitive impairment. PMID- 29018163 TI - mtDNA copy number associated with age of onset in familial amyloid polyneuropathy. AB - BACKGROUND: Transthyretin-related familial amyloid polyneuropathy (TTR-FAP Val30Met) shows a wide variation in age-at-onset (AO) between generations and genders, as in Portuguese families, where women display a later onset and a larger anticipation (>10 years). Mitochondrial DNA (mtDNA) copy number was assessed to clarify whether it has a modifier effect on AO variability in Portuguese patients. METHODS: The mtDNA copy number of 262 samples (175 Val30Met TTR carriers and 87 controls (proven Val30Val)) was quantified by quantitative real-time PCR. Statistical analysis was performed using IBM SPSS V.23 software. RESULTS: This study shows that Val30Met TTR carriers have a significantly higher (p<0.001) mean mtDNA copy number than controls. Furthermore, the highest mtDNA copy number mean was observed in early-onset patients (AO <40 years). Importantly, early-onset offspring showed a significant increase (p=0.002) in the mtDNA copy number, when compared with their late AO parents. CONCLUSIONS: The present findings suggest, for the first time, that mtDNA copy number may be associated with earlier events and may therefore be further explored as a potential biomarker for follow-up of TTR-FAP Val30Met carriers. PMID- 29018166 TI - Hybrid Atrial Fibrillation Ablation: Current Status and a Look Ahead. PMID- 29018164 TI - Termination of Vernakalant-Resistant Atrial Fibrillation by Inhibition of Small Conductance Ca2+-Activated K+ Channels in Pigs. AB - BACKGROUND: Evidence has emerged that small-conductance Ca2+-activated K+ (SK) channels constitute a new target for treatment of atrial fibrillation (AF). SK channels are predominantly expressed in the atria as compared with the ventricles. Various marketed antiarrhythmic drugs are limited by ventricular adverse effects and efficacy loss as AF progresses. METHODS AND RESULTS: A total of 43 pigs were used for the studies. AF reversion in conscious long-term tachypaced pigs: Pigs were subjected to atrial tachypacing (7 Hz) until they developed sustained AF that could not be reverted by vernakalant 4 mg/kg (18.8+/ 3.3 days of atrial tachypacing). When the SK channel inhibitor AP14145 was tested in these animals, vernakalant-resistant AF was reverted to sinus rhythm, and reinduction of AF by burst pacing (50 Hz) was prevented in 8 of 8 pigs. Effects on refractory period and AF duration in open chest pigs: The effects of AP14145 and vernakalant on the effective refractory periods and acute burst pacing induced AF were examined in anaesthetized open chest pigs. Both vernakalant and AP14145 significantly prolonged atrial refractoriness and reduced AF duration without affecting the ventricular refractoriness or blood pressure in pigs subjected to 7 days atrial tachypacing, as well as in sham-operated control pigs. CONCLUSIONS: SK currents play a role in porcine atrial repolarization, and pharmacological inhibition of these with AP14145 demonstrates antiarrhythmic effects in a vernakalant-resistant porcine model of AF. These results suggest SK channel blockers as potentially interesting anti-AF drugs. PMID- 29018167 TI - Inhibition of Small-Conductance Ca2+-Activated K+ Channels: The Long-Awaited Breakthrough for Antiarrhythmic Drug Therapy of Atrial Fibrillation? PMID- 29018168 TI - Alternative Approach for Ablation of the Mitral Isthmus. PMID- 29018165 TI - Catheter Ablation of the Superolateral Mitral Isthmus Line: A Novel Approach to Reduce the Need for Epicardial Ablation. AB - BACKGROUND: The mitral isthmus is a critical part of perimitral reentrant tachycardia, as well as an important substrate of persistent atrial fibrillation. Deployment of an endocardial mitral isthmus line (MIL) with the end point of bidirectional block may be challenging and often requires additional epicardial ablation within the coronary sinus. METHODS AND RESULTS: The study population comprised 114 patients with perimitral flutter who underwent de novo ablation of an MIL. The initial 57 patients (group A) underwent catheter ablation using a novel superolateral MIL design, connecting the left-sided pulmonary veins with the mitral annulus along the posterior base of the left atrial appendage visualized by selective angiography. The next 57 patients (group B) served as a control group and underwent ablation using a conventional MIL design, connecting the left inferior pulmonary vein with the mitral annulus. Bidirectional block was achieved in 56 of 57 patients in group A (98.2%) and 50 of 57 patients in group B (87.7%; P=0.06). Deployment of a superolateral MIL required significantly less ablation from within the coronary sinus (7.0% versus 71.9%; P<0.01). Predictors for unsuccessful bidirectional mitral isthmus blockade were the need for epicardial ablation from within the coronary sinus (P<0.01) and the total length of the MIL (29.3+/-6.35 mm versus 40.8+/-7.29 mm; P=0.005). A higher rate of pericardial tamponade was observed in group A (5.2% versus 0%; P=0.24). CONCLUSIONS: The superolateral MIL is associated with a high acute success rate to achieve bidirectional block using endocardial ablation only with minimal need for epicardial ablation from within the coronary sinus. PMID- 29018169 TI - Randomized Phase II Trial of Parsatuzumab (Anti-EGFL7) or Placebo in Combination with FOLFOX and Bevacizumab for First-Line Metastatic Colorectal Cancer. PMID- 29018170 TI - Temperature-activated ion channels in neural crest cells confer maternal fever associated birth defects. AB - Birth defects of the heart and face are common, and most have no known genetic cause, suggesting a role for environmental factors. Maternal fever during the first trimester is an environmental risk factor linked to these defects. Neural crest cells are precursor populations essential to the development of both at risk tissues. We report that two heat-activated transient receptor potential (TRP) ion channels, TRPV1 and TRPV4, were present in neural crest cells during critical windows of heart and face development. TRPV1 antagonists protected against the development of hyperthermia-induced defects in chick embryos. Treatment with chemical agonists of TRPV1 or TRPV4 replicated hyperthermia induced birth defects in chick and zebrafish embryos. To test whether transient TRPV channel permeability in neural crest cells was sufficient to induce these defects, we engineered iron-binding modifications to TRPV1 and TRPV4 that enabled remote and noninvasive activation of these channels in specific cellular locations and at specific developmental times in chick embryos with radio frequency electromagnetic fields. Transient stimulation of radio frequency controlled TRP channels in neural crest cells replicated fever-associated defects in developing chick embryos. Our data provide a previously undescribed mechanism for congenital defects, whereby hyperthermia activates ion channels that negatively affect fetal development. PMID- 29018171 TI - Dual enhancement of T and NK cell function by pulsatile inhibition of SHIP1 improves antitumor immunity and survival. AB - The success of immunotherapy in some cancer patients has revealed the profound capacity for cytotoxic lymphocytes to eradicate malignancies. Various immunotherapies work by blocking key checkpoint proteins that suppress immune cell activity. The phosphatase SHIP1 (SH2-containing inositol polyphosphate 5 phosphatase) limits signaling from receptors that activate natural killer (NK) cells and T cells. However, unexpectedly, genetic ablation studies have shown that the effector functions of SHIP1-deficient NK and T cells are compromised in vivo. Because chronic activation of immune cells renders them less responsive to activating signals (a host mechanism to avoid autoimmunity), we hypothesized that the failure of SHIP1 inhibition to induce antitumor immunity in those studies was caused by the permanence of genetic ablation. Accordingly, we found that reversible and pulsatile inhibition of SHIP1 with 3-alpha-aminocholestane (3AC; "SHIPi") increased the antitumor response of NK and CD8+ T cells in vitro and in vivo. Transient SHIP1 inhibition in mouse models of lymphoma and colon cancer improved the median and long-term tumor-free survival rates. Adoptive transfer assays showed evidence of immunological memory to the tumor in hematolymphoid cells from SHIPi-treated, long-term surviving mice. The findings suggest that a pulsatile regimen of SHIP1 inhibition might be an effective immunotherapy in some cancer patients. PMID- 29018175 TI - Lessons Learned and to Be Learned About the Use of N-Terminal Pro-B-Type Natriuretic Peptide in Heart Failure and Atrial Fibrillation. PMID- 29018172 TI - Foxo1 and Foxp1 play opposing roles in regulating the differentiation and antitumor activity of TH9 cells programmed by IL-7. AB - Tumor-specific CD4+ T helper 9 (TH9) cells, so-called because of their production of the cytokine interleukin-9 (IL-9), are a powerful effector T cell subset for cancer immunotherapy. We found that pretreatment of naive CD4+ T cells with IL-7 further enhanced their differentiation into TH9 cells and augmented their antitumor activity. IL-7 markedly increased the abundance of the histone acetyltransferase p300 by activating the STAT5 and PI3K-AKT-mTOR signaling pathways and promoting the acetylation of histones at the Il9 promoter. As a result, the transcriptional regulator Foxo1 was dephosphorylated and translocated to the nucleus, bound to the Il9 promoter, and induced the production of IL-9 protein. In contrast, Foxp1, which bound to the Il9 promoter in naive CD4+ T cells and inhibited Il9 expression, was outcompeted for binding to the Il9 promoter by Foxo1 and translocated to the cytoplasm. Furthermore, forced expression of Foxo1 or a deficiency in Foxp1 in CD4+ T cells markedly increased the production of IL-9, whereas a deficiency in Foxo1 inhibited the ability of IL 7 to enhance the differentiation and antitumor activity of TH9 cells. Thus, we identified the roles of Foxo1 as a positive regulator and Foxp1 as a negative regulator of TH9 cell differentiation and antitumor activity, which may provide potential targets for cancer immunotherapy. PMID- 29018173 TI - A pilot study of surgical telementoring for leg fasciotomy. AB - INTRODUCTION: Acute extremity compartment syndrome requires rapid decompression. In remote locations, distance, weather and logistics may delay the evacuation of patients with extremity trauma beyond the desired timeline for compartment release. The aim of this study was to establish the feasibility of performing telementored surgery for leg compartment release and to identify methodological issues relevant for future research. METHODS: Three anaethetists and one critical care physician were recruited as operators. They were directed to perform a two incision leg fasciotomy on a Thiel-embalmed cadaver under the guidance of a remotely located orthopaedic surgeon. The operating physician and the surgeon (mentor) were connected through software that allows for real-time supervision and the use of a virtual pointer overlaid onto the surgical field. Two experienced orthopaedic traumatologists independently assessed the adequacy of compartment decompression and the presence of iatrogenic complications. RESULTS: 14 of 16 compartments (in four leg specimens) were felt to have been completely released. The first evaluator considered that the deep posterior compartment was incompletely released in two specimens. The second evaluator considered that the superficial posterior compartment was incompletely released in two specimens. The only complication was a large laceration of the soleus muscle that occurred during a period of blurred video signal attributed to a drop in bandwidth. CONCLUSIONS: This study suggests that surgical telementoring may enable physicians to safely perform two-incision leg fasciotomy in remote environments. This could improve the chances of limb salvage when compartment syndrome occurs far from surgical care. We found interobserver variation in the assessment of compartment release, which should be considered in the design of future research protocols. PMID- 29018177 TI - A challenge to unqualified medical confidentiality. AB - Medical personnel sometimes face a seeming conflict between a duty to respect patient confidentiality and a duty to warn or protect endangered third parties. The conventional answer to dilemmas of this sort is that, in certain circumstances, medical professionals have an obligation to breach confidentiality. Kenneth Kipnis has argued, however, that the conventional wisdom on the nature of medical confidentiality is mistaken. Kipnis argues that the obligation to respect patient confidentiality is unqualified or absolute, since unqualified policies can save more lives in the long run. In this paper, I identify the form of Kipnis's argument and present a challenge to it. I conclude that, as matters stand now, a qualified confidentiality policy is the more rational choice. PMID- 29018174 TI - Prognostic Value of N-Terminal Pro-B-Type Natriuretic Peptide Levels in Heart Failure Patients With and Without Atrial Fibrillation. AB - BACKGROUND: Patients with heart failure (HF) and atrial fibrillation (AF) have higher circulating levels of NT-proBNP (N-terminal pro-B-type natriuretic peptide) than HF patients without AF. There is uncertainty about the prognostic importance of a given concentration of NT-proBNP in HF patients with and without AF. We investigated this question in a large cohort of patients with HF and reduced ejection fraction. METHODS AND RESULTS: We studied 14 737 patients with HF and reduced ejection fraction and a measurement of NT-proBNP at time of screening, enrolled in either the PARADIGM-HF trial (Prospective Comparison of ARNI With ACEI to Determine Impact on Global Mortality and Morbidity in Heart Failure) or the ATMOSPHERE trial (Aliskiren Trial to Minimize Outcomes in Patients With Heart Failure), of whom 3575 (24%) had AF on their baseline ECG. Median (Q1, Q3) levels of NT-proBNP were 1817 pg/mL (1095-3266 pg/mL) in those with AF and 1271 pg/mL (703-2569 pg/mL) in those without (P<0.0001). Patients with AF were older (67 versus 62 years), had worse New York Heart Association class (III/IV; 36% versus 24%), and experienced fewer previous HF hospitalizations (52% versus 61%) or myocardial infarction (30% versus 46%); all P<0.001. We categorized patients with and without AF into 5 NT-proBNP bands: <400, 400 to 999 (reference), 1000 to 1999, 2000 to 2999, and >=3000 pg/mL. For the primary composite outcome of cardiovascular death or HF hospitalization, event rates differed for patients with and without AF in the lowest band (<400 pg/mL; 8.2 versus 5.0 per 100 patient-years), but not for the higher bands (400 999 pg/mL, 7.4 versus 7.7 per 100 patient-years; 1000-1999 pg/mL, 9.8 versus 11.4 per 100 patient-year; 2000-2999 pg/mL, 13.5 versus 13.4 per 100 patient-years; >=3000 pg/mL, 22.7 versus 23.0 per 100 patient-years). These findings were consistent whether NT-proBNP was examined as a categorical or continuous variable and before and after adjustment for other prognostic variables. We found similar results for the components of the composite outcome and all-cause mortality. CONCLUSIONS: HF and reduced ejection fraction patients with AF had higher NT proBNP than those without AF. However, above a concentration of 400 pg/mL (representing most patients in each group), NT-proBNP had similar predictive value for adverse cardiovascular outcomes, irrespective of AF status. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier NCT00853658 (ATMOSPHERE) and NCT01035255 (PARADIGM-HF). PMID- 29018176 TI - In defence of governance: ethics review and social research. AB - There is a growing body of literature that has sought to undermine systems of ethical regulation, and governance more generally, within the social sciences. In this paper, we argue that any general claim for a system of research ethics governance in social research depends on clarifying the nature of the stake that society has in research. We show that certain accounts of this stake-protecting researchers' freedoms; ensuring accountability for resources; safeguarding welfare; and supporting democracy-raise relevant ethical considerations that are reasonably contested. However, these accounts cannot underpin a general claim in favour of, or against, a system of research ethics governance. Instead, we defend governance in social research on the grounds that research, as an institutionalised form of enquiry, is a constitutive element of human flourishing, and that society ought to be concerned with the flourishing of its members. We conclude by considering the governance arrangements that follow from, and are justified by, our arguments. PMID- 29018178 TI - Attitudes of paediatric and obstetric specialists towards prenatal surgery for lethal and non-lethal conditions. AB - BACKGROUND: While prenatal surgery historically was performed exclusively for lethal conditions, today intrauterine surgery is also performed to decrease postnatal disabilities for non-lethal conditions. We sought to describe physicians' attitudes about prenatal surgery for lethal and non-lethal conditions and to elucidate characteristics associated with these attitudes. METHODS: Survey of 1200 paediatric surgeons, neonatologists and maternal-fetal medicine specialists (MFMs). RESULTS: Of 1176 eligible physicians, 670 (57%) responded (range by specialty, 54%-60%). In the setting of a lethal condition for which prenatal surgery would likely result in the child surviving with a severe disability, most respondents either disagreed (59%) or strongly disagreed (19%) that they would recommend the surgery. Male physicians were twice as likely to recommend surgery for the lethal condition, as were physicians who believe that abortion is morally wrong (OR 1.75; 95%CI 1.0 to 3.05). Older physicians were less likely to recommend surgery (OR 0.57; 95%CI 0.36 to 0.88). For non-lethal conditions, most respondents agreed (66% somewhat, 4% strongly) that they would recommend prenatal surgery, even if the surgery increases the risk of prematurity or fetal death. Compared with MFMs, surgeons were less likely to recommend such surgery, as were physicians not affiliated with a fetal centre, and physicians who were religious (ORs range from 0.45 to 0.64). CONCLUSION: Physician's attitudes about prenatal surgery relate to physicians' beliefs about disability as well as demographic, cultural and religious characteristics. Given the variety of views, parents are likely to receive different recommendations from their doctors about the preferable treatment choice. PMID- 29018179 TI - Exhaled isoprene for monitoring recovery from acute hypoxic stress. AB - Hypoxia-like incidents in-flight have increased over the past decade causing severe safety concerns across the aviation community. As a result, the need to monitor flight crews in real-time for the onset of hypoxic conditions is paramount for continued aeronautical safety. Here, hypoxic events were simulated in the laboratory via a reduced oxygen-breathing device to determine the effect of recovery gas oxygen concentration (21% and 100%) on exhaled breath volatile organic compound composition. Data from samples collected both serially (throughout the exposure), prior to, and following exposures yielded 326 statistically significant features, 203 of which were unique. Of those, 72 features were tentatively identified while 51 were verified with authentic standards. A comparison of samples collected serially between recovery and hypoxia time points shows a statistically significant reduction in exhaled breath isoprene (2-methyl-1,3-butadiene, log2 FC -0.399, p = 0.005, FDR = 0.034, q = 0.033), however no significant difference in isoprene abundance was observed when comparing recovery gases (21% or 100% O2, p = 0.152). Furthermore, examination of pre-/post-exposure 1 l bag breath samples illustrate an overall increase in exhaled isoprene abundance post-exposure (log2 FC 0.393, p = 0.005, FDR = 0.094, q = 0.033) but again no significant difference between recovery gas (21% and 100%, p = 0.798) was observed. A statistically significant difference in trend was observed between isoprene abundance and recovery gases O2 concentration when plotted against minimum oxygen saturation (p = 0.0419 100% O2, p = 0.7034 21% O2). Collectively, these results suggest exhaled isoprene is dynamic in the laboratory ROBD setup and additional experimentation will be required to fully understand the dynamics of isoprene in response to acute hypoxic stress. PMID- 29018180 TI - Association between neuroendocrine tumor of the ileum and two colonic primary malignancies. A case report and review of literature. AB - BACKGROUND: A high rate of association between neuroendocrine tumors (NETs) and secondary primary malignancy (SPM) has been described in literature and this association can occur either in a synchronous or a metachronous presentation. A wide range of hypothesis has been postulated to explain the high rate of association between NETs and SPM, without definitive conclusions. CASE PRESENTATION: We report a case of an ileal neuroendocrine tumor found incidentally at the histologic examination of the surgical specimen in a 72 years old male underwent to right hemi colectomy for two colic adenomatous polips with high grade dysplasia. CONCLUSION: Large multicentric epidemiological studies should be considered to assess the association between NETs and SPM. KEY WORDS: Neuroendocrine tumors (NETs), Progression-Free Survival (PFS), Secondary primary malignancy (SPM). PMID- 29018184 TI - Correspondence: Numerical modelling of the PERM anomaly and the Emeishan large igneous province. PMID- 29018183 TI - A Case of Left Renal Vein Ligation in a Patient with Solitary Left Kidney Undergoing Liver Transplantation to Control Splenorenal Shunt and Improve Portal Venous Flow. AB - BACKGROUND Adequate portal venous flow is required for successful liver transplantation. Reduced venous flow and blood flow 'steal' by collateral vessels are a concern, and when there is a prominent splenorenal shunt present, ligation of the left renal vein has been recommended to improve portal venous blood flow. CASE REPORT A 51-year-old man who had undergone right nephrectomy in childhood required liver transplantation for liver cirrhosis and hepatocellular carcinoma due to hepatitis C virus (HCV) infection. The patient had no other comorbidity and no history of hepatorenal syndrome. At transplantation surgery, portal venous flow was poor and did not improve with ligation of shunt veins, but ligation of the left renal vein improved portal venous flow. On the first and fifth postoperative days, the patient was treated with basiliximab, a chimeric monoclonal antibody to the IL-2 receptor, and methylprednisolone. The calcineurin inhibitor, tacrolimus, was introduced on the fifth postoperative day. On the sixteenth postoperative day, renal color Doppler ultrasound showed normal left renal parenchyma; hepatic Doppler ultrasound showed good portal vein flow and preserved hepatic parenchyma in the liver transplant. CONCLUSIONS This case report has shown that in a patient with a single left kidney, left renal vein ligation is feasible and safe in a patient with no other risk factors for renal impairment following liver transplantation. Modification of postoperative immunosuppression to avoid calcineurin inhibitors in the very early postoperative phase may be important in promoting good recovery of renal function and to avoid the need for postoperative renal dialysis. PMID- 29018182 TI - Role of Nitric Oxide Pathway in Development and Progression of Chronic Kidney Disease in Rats Sensitive and Resistant to its Occurrence in an Experimental Model of 5/6 Nephrectomy. AB - BACKGROUND Understanding the mechanisms conditioning development of chronic kidney disease (CKD) is still a challenge. The aim of this study was to evaluate the activity of the intrarenal nitric oxide (NO) pathway in the context of sensitivity or resistance of different animal strains to the development and degree of renal failure. MATERIAL AND METHODS Two rat strains were used: Wistar (WR) and Sprague-Dawley rats (SDR) in a model of CKD - 5/6 nephrectomy. We assessed parameters of renal failure and expression of nitric oxide synthase (NOS) isoforms in renal cortex and medulla. RESULTS We did not observe renal failure in WR, and CKD developed in SDR with increase of creatinine and urea concentration as well as decrease of diuresis and glomerular filtration. In the renal cortex, baseline expression of NOS2 was higher in WR than in SDR. 5/6 nephrectomy resulted in reduction of NOS2 in both strains and NOS3 in WR. In the renal medulla, baseline NOS2 expression was higher in SDR, and nephrectomy resulted in its decrease only in SDR. Although baseline NOS3 expression was higher in SDR, the NOS3 expression after nephrectomy was higher in WR rats. CONCLUSIONS In model of CKD - 5/6 nephrectomy, SDR proved to be sensitive and WR resistant to development of CKD. The intrarenal activity of the nitric oxide pathway was the factor that differentiated both strains. This mechanism may be responsible for insensitivity of WR to development of renal failure in this model of CKD. PMID- 29018185 TI - Laterally extended atomically precise graphene nanoribbons with improved electrical conductivity for efficient gas sensing. AB - Narrow atomically precise graphene nanoribbons hold great promise for electronic and optoelectronic applications, but the previously demonstrated nanoribbon-based devices typically suffer from low currents and mobilities. In this study, we explored the idea of lateral extension of graphene nanoribbons for improving their electrical conductivity. We started with a conventional chevron graphene nanoribbon, and designed its laterally extended variant. We synthesized these new graphene nanoribbons in solution and found that the lateral extension results in decrease of their electronic bandgap and improvement in the electrical conductivity of nanoribbon-based thin films. These films were employed in gas sensors and an electronic nose system, which showed improved responsivities to low molecular weight alcohols compared to similar sensors based on benchmark graphitic materials, such as graphene and reduced graphene oxide, and a reliable analyte recognition. This study shows the methodology for designing new atomically precise graphene nanoribbons with improved properties, their bottom-up synthesis, characterization, processing and implementation in electronic devices.Atomically precise graphene nanoribbons are a promising platform for tailored electron transport, yet they suffer from low conductivity. Here, the authors devise a strategy to laterally extend conventional chevron nanoribbons, thus achieving increased electrical conductivity and improved chemical sensing capabilities. PMID- 29018186 TI - Microfluidics with fluid walls. AB - Microfluidics has great potential, but the complexity of fabricating and operating devices has limited its use. Here we describe a method - Freestyle Fluidics - that overcomes many key limitations. In this method, liquids are confined by fluid (not solid) walls. Aqueous circuits with any 2D shape are printed in seconds on plastic or glass Petri dishes; then, interfacial forces pin liquids to substrates, and overlaying an immiscible liquid prevents evaporation. Confining fluid walls are pliant and resilient; they self-heal when liquids are pipetted through them. We drive flow through a wide range of circuits passively by manipulating surface tension and hydrostatic pressure, and actively using external pumps. Finally, we validate the technology with two challenging applications - triggering an inflammatory response in human cells and chemotaxis in bacterial biofilms. This approach provides a powerful and versatile alternative to traditional microfluidics.The complexity of fabricating and operating microfluidic devices limits their use. Walsh et al. describe a method in which circuits are printed as quickly and simply as writing with a pen, and liquids in them are confined by fluid instead of solid walls. PMID- 29018187 TI - Interconnected subsets of memory follicular helper T cells have different effector functions. AB - Follicular helper T cells regulate high-affinity antibody production. Memory follicular helper T cells can be local in draining lymphoid organs and circulate in the blood, but the underlying mechanisms of this subdivision are unresolved. Here we show that both memory follicular helper T subsets sustain B-cell responses after reactivation. Local cells promote more plasma cell differentiation, whereas circulating cells promote more secondary germinal centers. In parallel, local memory B cells are homogeneous and programmed to become plasma cells, whereas circulating memory B cells are able to rediversify. Local memory follicular helper T cells have higher affinity T-cell receptors, which correlates with expression of peptide MHC-II at the surface of local memory B cells only. Blocking T-cell receptor-peptide MHC-II interactions induces the release of local memory follicular helper T cells in the circulating compartment. Our studies show that memory follicular helper T localization is highly intertwined with memory B cells, a finding that has important implications for vaccine design.Tfh cells can differentiate into memory cells. Here the authors describe distinct functional and phenotypic profiles of these memory Tfh cells dependent on their anatomical localization to the lymphoid organs or to the circulation. PMID- 29018188 TI - Cardioprotection induced in a mouse model of neuropathic pain via anterior nucleus of paraventricular thalamus. AB - Myocardial infarction is the leading cause of death worldwide. Restoration of blood flow rescues myocardium but also causes ischemia-reperfusion injury. Here, we show that in a mouse model of chronic neuropathic pain, ischemia-reperfusion injury following myocardial infarction is reduced, and this cardioprotection is induced via an anterior nucleus of paraventricular thalamus (PVA)-dependent parasympathetic pathway. Pharmacological inhibition of extracellular signal regulated kinase activation in the PVA abolishes neuropathic pain-induced cardioprotection, whereas activation of PVA neurons pharmacologically, or optogenetic stimulation, is sufficient to induce cardioprotection. Furthermore, neuropathic injury and optogenetic stimulation of PVA neurons reduce the heart rate. These results suggest that the parasympathetic nerve is responsible for this unexpected cardioprotective effect of chronic neuropathic pain in mice.Various forms of preconditioning can prevent ischemic-reperfusion injury after myocardial infarction. Here, the authors show that in mice, the presence of chronic neuropathic pain can have a cardioprotective effect, and that this is dependent on neural activation in the paraventricular thalamus. PMID- 29018190 TI - Color-selective photodetection from intermediate colloidal quantum dots buried in amorphous-oxide semiconductors. AB - We report color-selective photodetection from intermediate, monolayered, quantum dots buried in between amorphous-oxide semiconductors. The proposed active channel in phototransistors is a hybrid configuration of oxide-quantum dot-oxide layers, where the gate-tunable electrical property of silicon-doped, indium-zinc oxide layers is incorporated with the color-selective properties of quantum dots. A remarkably high detectivity (8.1 * 1013 Jones) is obtained, along with three major findings: fast charge separation in monolayered quantum dots; efficient charge transport through high-mobility oxide layers (20 cm2 V-1 s-1); and gate tunable drain-current modulation. Particularly, the fast charge separation rate of 3.3 ns-1 measured with time-resolved photoluminescence is attributed to the intermediate quantum dots buried in oxide layers. These results facilitate the realization of efficient color-selective detection exhibiting a photoconductive gain of 107, obtained using a room-temperature deposition of oxide layers and a solution process of quantum dots. This work offers promising opportunities in emerging applications for color detection with sensitivity, transparency, and flexibility.The development of highly sensitive photodetectors is important for image sensing and optical communication applications. Cho et al., report ultra sensitive photodetectors based on monolayered quantum dots buried in between amorphous-oxide semiconductors and demonstrate color-detecting logic gates. PMID- 29018189 TI - The gut microbiome in atherosclerotic cardiovascular disease. AB - The gut microbiota has been linked to cardiovascular diseases. However, the composition and functional capacity of the gut microbiome in relation to cardiovascular diseases have not been systematically examined. Here, we perform a metagenome-wide association study on stools from 218 individuals with atherosclerotic cardiovascular disease (ACVD) and 187 healthy controls. The ACVD gut microbiome deviates from the healthy status by increased abundance of Enterobacteriaceae and Streptococcus spp. and, functionally, in the potential for metabolism or transport of several molecules important for cardiovascular health. Although drug treatment represents a confounding factor, ACVD status, and not current drug use, is the major distinguishing feature in this cohort. We identify common themes by comparison with gut microbiome data associated with other cardiometabolic diseases (obesity and type 2 diabetes), with liver cirrhosis, and rheumatoid arthritis. Our data represent a comprehensive resource for further investigations on the role of the gut microbiome in promoting or preventing ACVD as well as other related diseases.The gut microbiota may play a role in cardiovascular diseases. Here, the authors perform a metagenome-wide association study on stools from individuals with atherosclerotic cardiovascular disease and healthy controls, identifying microbial strains and functions associated with the disease. PMID- 29018191 TI - D-serine released by astrocytes in brainstem regulates breathing response to CO2 levels. AB - Central chemoreception is essential for adjusting breathing to physiological demands, and for maintaining CO2 and pH homeostasis in the brain. CO2-induced ATP release from brainstem astrocytes stimulates breathing. NMDA receptor (NMDAR) antagonism reduces the CO2-induced hyperventilation by unknown mechanisms. Here we show that astrocytes in the mouse caudal medullary brainstem can synthesize, store, and release D-serine, an agonist for the glycine-binding site of the NMDAR, in response to elevated CO2 levels. We show that systemic and raphe nucleus D-serine administration to awake, unrestrained mice increases the respiratory frequency. Application of D-serine to brainstem slices also increases respiratory frequency, which was prevented by NMDAR blockade. Inhibition of D serine synthesis, enzymatic degradation of D-serine, or the sodium fluoroacetate induced impairment of astrocyte functions decrease the basal respiratory frequency and the CO2-induced respiratory response in vivo and in vitro. Our findings suggest that astrocytic release of D-serine may account for the glutamatergic contribution to central chemoreception.Astrocytes are involved in chemoreception in brainstem areas that regulate breathing rhythm, and astrocytes are known to release D-serine. Here the authors show that astrocyte release of D serine contributes to CO2 sensing and breathing in brainstem slices, and in vivo in awake unrestrained mice. PMID- 29018193 TI - Coherent optomechanical state transfer between disparate mechanical resonators. AB - Systems of coupled mechanical resonators are useful for quantum information processing and fundamental tests of physics. Direct coupling is only possible with resonators of very similar frequency, but by using an intermediary optical mode, non-degenerate modes can interact and be independently controlled in a single optical cavity. Here we demonstrate coherent optomechanical state swapping between two spatially and frequency separated resonators with a mass ratio of 4. We find that, by using two laser beams far detuned from an optical cavity resonance, efficient state transfer is possible. Although the demonstration is classical, the same technique can be used to generate entanglement between oscillators in the quantum regime.Coupled mechanical resonators where each mode can be separately controlled are a promising system for quantum information processing. Here, Weaver et al. demonstrate coherent swapping of optomechanical states between two separate resonators. PMID- 29018192 TI - Simultaneous evolutionary expansion and constraint of genomic heterogeneity in multifocal lung cancer. AB - Recent genomic analyses have revealed substantial tumor heterogeneity across various cancers. However, it remains unclear whether and how genomic heterogeneity is constrained during tumor evolution. Here, we sequence a unique cohort of multiple synchronous lung cancers (MSLCs) to determine the relative diversity and uniformity of genetic drivers upon identical germline and environmental background. We find that each multicentric primary tumor harbors distinct oncogenic alterations, including novel mutations that are experimentally demonstrated to be functional and therapeutically targetable. However, functional studies show a strikingly constrained tumorigenic pathway underlying heterogeneous genetic variants. These results suggest that although the mutation specific routes that cells take during oncogenesis are stochastic, genetic trajectories may be constrained by selection for functional convergence on key signaling pathways. Our findings highlight the robust evolutionary pressures that simultaneously shape the expansion and constraint of genomic diversity, a principle that holds important implications for understanding tumor evolution and optimizing therapeutic strategies.Across cancer types tumor heterogeneity has been observed, but how this relates to tumor evolution is unclear. Here, the authors sequence multiple synchronous lung cancers, highlighting the evolutionary pressures that simultaneously shape the expansion and constraint of genomic heterogeneity. PMID- 29018195 TI - Prior preferences beneficially influence social and non-social learning. AB - Our personal preferences affect a broad array of social behaviors. This includes the way we learn the preferences of others, an ability that often relies on limited or ambiguous information. Here we report an egocentric influence on this type of social learning that is reflected in both performance and response times. Using computational models that combine inter-trial learning and intra-trial choice, we find transient effects of participants' preferences on the learning process, through the influence of priors, and persistent effects on the choice process. A second experiment shows that these effects generalize to non-social learning, though participants in the social learning experiment appeared to additionally benefit by using their knowledge about the popularity of certain preferences. We further find that the domain-general egocentric influences we identify can yield performance advantages in uncertain environments.People often assume that other people share their preferences, but how exactly this bias manifests itself in learning and decision-making is unclear. Here, authors show that a person's own preferences influence learning in both social and non-social situations, and that this bias improves performance. PMID- 29018196 TI - Cenozoic global cooling and increased seawater Mg/Ca via reduced reverse weathering. AB - Authigenic clay minerals formed on or in the seafloor occur in every type of marine sediment. They are recognized to be a major sink of many elements in the ocean but are difficult to study directly due to dilution by detrital clay minerals. The extremely low dust fluxes and marine sedimentation rates in the South Pacific Gyre (SPG) provide a unique opportunity to examine relatively undiluted authigenic clay. Here, using Mg isotopes and element concentrations combined with multivariate statistical modeling, we fingerprint and quantify the abundance of authigenic clay within SPG sediment. Key reactants include volcanic ash (source of reactive aluminium) and reactive biogenic silica on or shallowly buried within the seafloor. Our results, together with previous studies, suggest that global reorganizations of biogenic silica burial over the Cenozoic reduced marine authigenic clay formation, contributing to the rise in seawater Mg/Ca and decline in atmospheric CO2 over the past 50 million years.Reverse weathering reactions on or in the seafloor are a major sink of many elements and alkalinity in seawater. Here, the authors show how reduced rates of reverse weathering may be responsible for global cooling and increased seawater Mg/Ca over the past 50 million years. PMID- 29018194 TI - PNLDC1 is essential for piRNA 3' end trimming and transposon silencing during spermatogenesis in mice. AB - Piwi-interacting RNAs are small regulatory RNAs with key roles in transposon silencing and regulation of gametogenesis. The production of mature piwi interacting RNAs requires a critical step of trimming piwi-interacting RNA intermediates to achieve optimally sized piwi-interacting RNAs. The poly(A) specific ribonuclease family deadenylase PNLDC1 is implicated in piwi-interacting RNA trimming in silkworms. The physiological function of PNLDC1 in mammals remains unknown. Using Pnldc1-deficient mice, here we show that PNLDC1 is required for piwi-interacting RNA biogenesis, transposon silencing, and spermatogenesis. Pnldc1 mutation in mice inhibits piwi-interacting RNA trimming and causes accumulation of untrimmed piwi-interacting RNA intermediates with 3' end extension, leading to severe reduction of mature piwi-interacting RNAs in the testis. Pnldc1 mutant mice exhibit disrupted LINE1 retrotransposon silencing and defect in spermiogenesis. Together, these results define PNLDC1 as a mammalian piwi-interacting RNA biogenesis factor that protects the germline genome and ensures normal sperm production in mice.piRNAs are regulatory RNAs that play a critical role in transposon silencing and gametogenesis. Here, the authors provide evidence that mammalian PNLDC1 is a regulator of piRNA biogenesis, transposon silencing and spermatogenesis, protecting the germline genome in mice. PMID- 29018198 TI - Plume-subduction interaction forms large auriferous provinces. AB - Gold enrichment at the crustal or mantle source has been proposed as a key ingredient in the production of giant gold deposits and districts. However, the lithospheric-scale processes controlling gold endowment in a given metallogenic province remain unclear. Here we provide the first direct evidence of native gold in the mantle beneath the Deseado Massif in Patagonia that links an enriched mantle source to the occurrence of a large auriferous province in the overlying crust. A precursor stage of mantle refertilisation by plume-derived melts generated a gold-rich mantle source during the Early Jurassic. The interplay of this enriched mantle domain and subduction-related fluids released during the Middle-Late Jurassic resulted in optimal conditions to produce the ore-forming magmas that generated the gold deposits. Our study highlights that refertilisation of the subcontinental lithospheric mantle is a key factor in forming large metallogenic provinces in the Earth's crust, thus providing an alternative view to current crust-related enrichment models.The lithospheric controls on giant gold deposits remain unclear. Here, the authors show evidence for native gold in the mantle from the Deseado Massif in Patagonia demonstrating that refertilisation of the lithospheric mantle is key in forming metallogenic provinces. PMID- 29018197 TI - The chromosomal organization of horizontal gene transfer in bacteria. AB - Bacterial adaptation is accelerated by the acquisition of novel traits through horizontal gene transfer, but the integration of these genes affects genome organization. We found that transferred genes are concentrated in only ~1% of the chromosomal regions (hotspots) in 80 bacterial species. This concentration increases with genome size and with the rate of transfer. Hotspots diversify by rapid gene turnover; their chromosomal distribution depends on local contexts (neighboring core genes), and content in mobile genetic elements. Hotspots concentrate most changes in gene repertoires, reduce the trade-off between genome diversification and organization, and should be treasure troves of strain specific adaptive genes. Most mobile genetic elements and antibiotic resistance genes are in hotspots, but many hotspots lack recognizable mobile genetic elements and exhibit frequent homologous recombination at flanking core genes. Overrepresentation of hotspots with fewer mobile genetic elements in naturally transformable bacteria suggests that homologous recombination and horizontal gene transfer are tightly linked in genome evolution.Horizontal gene transfer (HGT) is an important mechanism for genome evolution and adaptation in bacteria. Here, Oliveira and colleagues find HGT hotspots comprising ~ 1% of the chromosomal regions in 80 bacterial species. PMID- 29018199 TI - Pan-Antarctic analysis aggregating spatial estimates of Adelie penguin abundance reveals robust dynamics despite stochastic noise. AB - Colonially-breeding seabirds have long served as indicator species for the health of the oceans on which they depend. Abundance and breeding data are repeatedly collected at fixed study sites in the hopes that changes in abundance and productivity may be useful for adaptive management of marine resources, but their suitability for this purpose is often unknown. To address this, we fit a Bayesian population dynamics model that includes process and observation error to all known Adelie penguin abundance data (1982-2015) in the Antarctic, covering >95% of their population globally. We find that process error exceeds observation error in this system, and that continent-wide "year effects" strongly influence population growth rates. Our findings have important implications for the use of Adelie penguins in Southern Ocean feedback management, and suggest that aggregating abundance across space provides the fastest reliable signal of true population change for species whose dynamics are driven by stochastic processes.Adelie penguins are a key Antarctic indicator species, but data patchiness has challenged efforts to link population dynamics to key drivers. Che Castaldo et al. resolve this issue using a pan-Antarctic Bayesian model to infer missing data, and show that spatial aggregation leads to more robust inference regarding dynamics. PMID- 29018200 TI - Direction-specific interaction forces underlying zinc oxide crystal growth by oriented attachment. AB - Crystallization by particle attachment is impacting our understanding of natural mineralization processes and holds promise for novel materials design. When particles assemble in crystallographic alignment, expulsion of the intervening solvent and particle coalescence are enabled by near-perfect co-alignment via interparticle forces that remain poorly quantified. Here we report measurement and simulation of these nanoscale aligning forces for the ZnO(0001) ZnO(000[Formula: see text]) system in aqueous solution. Dynamic force spectroscopy using nanoengineered single crystal probes reveals an attractive force with 60o rotational periodicity. Calculated distance and orientation dependent potentials of mean force show several attractive free energy wells distinguished by numbers of intervening water layers, which reach a minimum when aligned. The calculated activation energy to separate the attractively bound solvated interfaces perfectly reproduces the measured 60o periodicity, revealing the key role of intervening water structuring as a basis to generate the interparticle torque that completes alignment and enables coalescence.Crystal growth is a fundamental process, important in a wide range of fields, but the interparticle forces responsible for molecule alignment are not well understood. Here, the authors measure the alignment forces in ZnO using dynamic force spectroscopy, highlighting the role of intervening water molecules. PMID- 29018202 TI - Erratum: Symmetry-based indicators of band topology in the 230 space groups. AB - A correction to this article has been published and is linked from the HTML version of this article. PMID- 29018203 TI - Nonvolatile nuclear spin memory enables sensor-unlimited nanoscale spectroscopy of small spin clusters. AB - In nanoscale metrology, dissipation of the sensor limits its performance. Strong dissipation has a negative impact on sensitivity, and sensor-target interaction even causes relaxation or dephasing of the latter. The weak dissipation of nitrogen-vacancy (NV) sensors in room temperature diamond enables detection of individual target nuclear spins, yet limits the spectral resolution of nuclear magnetic resonance (NMR) spectroscopy to several hundred Hertz, which typically prevents molecular recognition. Here, we use the NV intrinsic nuclear spin as a nonvolatile classical memory to store NMR information, while suppressing sensor back-action on the target using controlled decoupling of sensor, memory, and target. We demonstrate memory lifetimes up to 4 min and apply measurement and decoupling protocols, which exploit such memories efficiently. Our universal NV based sensor device records single-spin NMR spectra with 13 Hz resolution at room temperature.Dissipation of the sensor is a limiting factor in metrology. Here, Pfender et al. suppress this effect employing the nuclear spin of an NV centre for robust intermediate storage of classical NMR information, allowing then to record single-spin NMR spectra with 13 Hz resolution at room temperature. PMID- 29018201 TI - Activating de novo mutations in NFE2L2 encoding NRF2 cause a multisystem disorder. AB - Transcription factor NRF2, encoded by NFE2L2, is the master regulator of defense against stress in mammalian cells. Somatic mutations of NFE2L2 leading to NRF2 accumulation promote cell survival and drug resistance in cancer cells. Here we show that the same mutations as inborn de novo mutations cause an early onset multisystem disorder with failure to thrive, immunodeficiency and neurological symptoms. NRF2 accumulation leads to widespread misregulation of gene expression and an imbalance in cytosolic redox balance. The unique combination of white matter lesions, hypohomocysteinaemia and increased G-6-P-dehydrogenase activity will facilitate early diagnosis and therapeutic intervention of this novel disorder.The NRF2 transcription factor regulates the response to stress in mammalian cells. Here, the authors show that activating mutations in NRF2, commonly found in cancer cells, are found in four patients with a multisystem disorder characterized by immunodeficiency and neurological symptoms. PMID- 29018204 TI - A new stress sensor and risk factor for suicide: the T allele of the functional genetic variant in the GABRA6 gene. AB - Low GABA transmission has been reported in suicide, and GABRA6 rs3219151 T allele has been associated with greater physiological and endocrine stress response in previous studies. Although environmental stress also plays a role in suicide, the possible role of this allele has not been investigated in this respect. In our present study effect of rs3219151 of GABRA6 gene in interaction with recent negative life events on lifetime and current depression, current anxiety, as well as lifetime suicide were investigated using regression models in a white European general sample of 2283 subjects. Post hoc measures for phenotypes related to suicide risk were also tested for association with rs3219151 in interaction with environmental stress. No main effect of the GABRA6 rs3219151 was detected, but in those exposed to recent negative life events GABRA6 T allele increased current anxiety and depression as well as specific elements of suicide risk including suicidal and death-related thoughts, hopelessness, restlessness and agitation, insomnia and impulsiveness as measured by the STOP task. Our data indicate that stress-associated suicide risk is elevated in carriers of the GABRA6 rs3219151 T allele with several independent markers and predictors of suicidal behaviours converging to this increased risk. PMID- 29018205 TI - Genetic status of KRAS modulates the role of Neuropilin-1 in tumorigenesis. AB - Neuropilin-1 (NRP1), a non-tyrosine kinase receptor, is overexpressed in many cancers including pancreatic and lung cancers. Inhibition of NRP1 expression, however, has differing pro-tumor vs. anti-tumor effects, depending on the cancer types. To understand the differential role of NRP1 in tumorigenesis process, we utilized cells from two different cancer types, pancreatic and lung, each containing either wild type KRAS (KRAS wt) or mutant KRAS (KRAS mt). Inhibition of NRP1 expression by shRNA in both pancreatic and lung cancer cells containing dominant active KRAS mt caused increased cell viability and tumor growth. On the contrary, inhibition of NRP1, in the tumor cells containing KRAS wt showed decreased tumor growth. Importantly, concurrent inhibition of KRAS mt and NRP1 in the tumor cells reverses the increased viability and leads to tumor inhibition. We found that NRP1 shRNA expressing KRAS mt tumor cells caused increased cell viability by decreasing SMAD2 phosphorylation. Our findings demonstrate that the effects of NRP1 knockdown in cancer cells are dependent on the genetic status of KRAS. PMID- 29018206 TI - Tumor-Penetrating Delivery of siRNA against TNFalpha to Human Vestibular Schwannomas. AB - Vestibular schwannoma (VS) is the most common tumor of the cerebellopontine angle, and it typically presents with sensorineural hearing loss. The genomic landscape of schwannoma is complex and many of the molecules implicated in VS pathogenesis represent targets not amenable to antibody-based or small molecule therapeutics. Tumor-targeted delivery of small interfering RNA (siRNA) therapeutics provides a direct and effective means to interrogate targets while minimizing off-target effects. To establish a preclinical model for therapeutic inhibition of putative targets in VS, archived tumor specimens, fresh tumor cells derived from patients with sporadic VS, and an established schwannoma cell line were screened. Nanoparticles directed by the tumor-homing peptide iRGD were selectively taken up by primary VS cultures in vitro via interactions with alphavbeta3/beta5 integrins and neuropilin-1 (NRP-1). Cellular uptake was inhibited by a neutralizing antibody against alphav integrin in a dose-dependent manner. When applied to primary VS cultures, iRGD-targeted nanoparticles delivered siRNA directed against TNFalpha in a receptor-specific fashion to potently silence gene expression and protein secretion. Taken together, our results provide a proof of principle for tumor-targeted, nanoparticle-mediated delivery of siRNA to VS and establish a novel platform for the development and pre-clinical screening of molecular therapeutics against VS. PMID- 29018209 TI - Erratum: miR-15a/miR-16 down-regulates BMI1, impacting Ub-H2A mediated DNA repair and breast cancer cell sensitivity to doxorubicin. 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- 29018207 TI - Stress-induced plasticity of dynamic collagen networks. AB - The structure and mechanics of tissues is constantly perturbed by endogenous forces originated from cells, and at the same time regulate many important cellular functions such as migration, differentiation, and growth. Here we show that 3D collagen gels, major components of connective tissues and extracellular matrix (ECM), are significantly and irreversibly remodeled by cellular traction forces, as well as by macroscopic strains. To understand this ECM plasticity, we develop a computational model that takes into account the sliding and merging of ECM fibers. We have confirmed the model predictions with experiment. Our results suggest the profound impacts of cellular traction forces on their host ECM during development and cancer progression, and suggest indirect mechanical channels of cell-cell communications in 3D fibrous matrices.The structure and mechanics of tissues is constantly perturbed by endogenous forces originated from cells. Here the authors show that 3D collagen gels, major components of connective tissues and extracellular matrix, are significantly and irreversibly remodelled by cellular traction forces and by macroscopic strains. PMID- 29018208 TI - Difference in intracellular temperature rise between matured and precursor brown adipocytes in response to uncoupler and beta-adrenergic agonist stimuli. AB - Brown adipocytes function to maintain body temperature by heat production. However, direct measurement of heat production at a single cell level remains difficult. Here we developed a method to measure the temperature within primary cultured brown adipocytes using a cationic fluorescent polymeric thermometer. Placement of the thermometer within a matured brown adipocyte and a precursor cell enabled the detection of heat production following uncoupler treatment. The increase in the intracellular temperature due to stimulation with a mitochondrial uncoupler was higher in matured brown adipocytes than in precursor cells. Stimulation with a beta-adrenergic receptor (beta-AR) agonist, norepinephrine, raised the intracellular temperature of matured brown adipocytes to a level comparable to that observed after stimulation with a beta3-AR-specific agonist, CL316.243. In contrast, neither beta-AR agonist induced an intracellular temperature increase in precursor cells. Further, pretreatment of brown adipocytes with a beta3-AR antagonist inhibited the norepinephrine-stimulated elevation of temperature. These results demonstrate that our novel method successfully determined the difference in intracellular temperature increase between matured brown adipocytes and precursor cells in response to stimulation by an uncoupler and beta-AR agonists. PMID- 29018211 TI - An exact solution for the free-vibration analysis of functionally graded carbon nanotube-reinforced composite beams with arbitrary boundary conditions. AB - We present an exact method to model the free vibration of functionally graded carbon-nanotube-reinforced composite (FG-CNTRC) beams with arbitrary boundary conditions based on first-order shear deformation elasticity theory. Five types of carbon nanotube (CNT) distributions are considered. The distributions are either uniform or functionally graded and are assumed to be continuous through the thickness of the beams. The displacements and rotational components of the beams are expressed as a linear combination of the standard Fourier series and several supplementary functions. The formulation is derived using the modified Fourier series and solved using the strong-form solution and the weak-form solution (i.e., the Rayleigh-Ritz method). Both solutions are applicable to various combinations of boundary constraints, including classical boundary conditions and elastic-supported boundary conditions. The accuracy, efficiency and validity of the two solutions presented are demonstrated via comparison with published results. A parametric study is conducted on the influence of several key parameters, namely, the L/h ratio, CNT volume fraction, CNT distribution, boundary spring stiffness and shear correction factor, on the free vibration of FG-CNTRC beams. PMID- 29018210 TI - Magnetic Nanoparticle-Reduced Graphene Oxide Nanocomposite as a Novel Bioelectrode for Mediatorless-Membraneless Glucose Enzymatic Biofuel Cells. AB - In this work, an enzymatic biofuel cell (EBC) based on a membraneless and mediatorless glucose enzymatic fuel cell system was constructed for operation in physiological conditions (pH 7.0 and temperature 37 degrees C). The new platform EBC made of nanocomposite, including magnetic nanoparticles (Fe3O4 NPs) and reduced graphene oxide (RGO), was used for the immobilization of glucose oxidase (GOD) as bioanode and bilirubin oxidase (BOD) as biocathode. The EBC bioelectrodes were fabricated without binder or adhesive agents for immobilized enzyme and the first EBC using superparamagnetic properties with Fe3O4 NPs has been reported. The performance of the EBC was evaluated with promising results. In EBC tests, the maximum power density of the EBC was 73.7 MUW cm-2 and an open circuit voltage (OCV) as +0.63 V with 5 mM of glucose concentration for the physiological condition of humans. The Fe3O4-RGO nanocomposite offers remarkable enhancement in large surface areas, is a favorable environment for enzyme immobilization, and facilitates electron transfer between enzymes and electrode surfaces. Fe3O4 and RGO have been implied as new promising composite nanomaterials for immobilizing enzymes and efficient platforms due to their superparamagnetism properties. Thus, glucose EBCs could potentially be used as self-powered biosensors or electric power sources for biomedical device applications. PMID- 29018212 TI - Enhanced Therapeutic Treatment of Colorectal Cancer Using Surface-Modified Nanoporous Acupuncture Needles. AB - Acupuncture originated within the auspices of Oriental medicine, and today is used as an alternative method for treating various diseases and symptoms. The physiological mechanisms of acupuncture appear to involve the release of endogenous opiates and neurotransmitters, with the signals mediating through electrical stimulation of the central nervous system (CNS). Earlier we reported a nanoporous stainless steel acupuncture needle with enhanced therapeutic properties, evaluated by electrophysiological and behavioral responses in Sprague Dawley (SD) rats. Herein, we investigate molecular changes in colorectal cancer (CRC) rats by acupuncture treatment using the nanoporous needles. Treatment at acupoint HT7 is found most effective at reducing average tumor size, beta-catenin expression levels, and the number of aberrant crypt foci in the colon endothelium. Surface modification of acupuncture needles further enhances the therapeutic effects of acupuncture treatment in CRC rats. PMID- 29018214 TI - Correspondence: Reply to 'Numerical modelling of the PERM anomaly and the Emeishan large igneous province'. PMID- 29018213 TI - Strict molecular sieving over electrodeposited 2D-interspacing-narrowed graphene oxide membranes. AB - To separate small molecules/species, it's crucial but still challenging to narrow the 2D-interspacing of graphene oxide (GO) membranes without damaging the membrane. Here the fast deposition of ultrathin, defect-free and robust GO layers is realized on porous stainless steel hollow fibers (PSSHFs) by a facile and practical electrophoresis deposition (ED) method. In this approach, oxygen containing groups of GO are selectively reduced, leading to a controlled decrease of the 2D channels of stacked GO layers. The resultant ED-GO@PSSHF composite membranes featured a sharp cutoff between C2 (ethane and ethene) and C3 (propane and propene) hydrocarbons and exhibited nearly complete rejections for the smallest alcohol and ion in aqueous solutions. This demonstrates the versatility of GO based membranes for the precise separation of various types of mixtures. At the same time, a robust mechanical strength of the ED-GO@PSSHF membrane is also achieved due to the enhanced interaction at GO/support and GO/GO interfaces.Producing graphene oxide membranes with narrow channels is desirable for small molecule separations, but methods to narrow the 2D spacing typically result in membrane damage. Here the authors exploit electrophoresis-deposition to prepare GO membranes that are reduced in situ, leading to narrow and uniform 2D channels. PMID- 29018215 TI - Impact of Infectious Disease Consultation on Clinical Management and Outcome of Patients with Bloodstream Infection: a Retrospective Cohort Study. AB - The impact of consultation by infectious diseases (ID) physicians on management and outcomes of patients has not been determined in China. We assembled a retrospective cohort of 995 consecutive adult cases with bloodstream infections (BSI) in a major teaching hospital in China. Survival analysis was performed with Cox regression and the Kaplan-Meier curves. Among the 995 patients with BSI, 421 (42.3%) received consultation by ID physicians and 574 (57.7%) did not. ID consultation led to a significant lower hazard of death (hazard ratio [HR], 0.575; P < 0.05) and more appropriate antimicrobial use (95.0% vs 67.6%, P < 0.05). ID consultation was a protective factor among patients with BSI due to Gram-positive (HR, 0.551; P < 0.05) or Gram-negative (HR, 0.331; P < 0.05) bacteria. Multiple ID consultation was a protective factor (HR, 0.51; P < 0.05), while single consultation was not. In conclusion, ID consultation led to significant lower risk for patients with BSI and improved management. Multiple rather than single ID consultations reduced the hazard of death. PMID- 29018217 TI - Quantifying Anthropogenic Stress on Groundwater Resources. AB - This study explores a general framework for quantifying anthropogenic influences on groundwater budget based on normalized human outflow (hout) and inflow (hin). The framework is useful for sustainability assessment of groundwater systems and allows investigating the effects of different human water abstraction scenarios on the overall aquifer regime (e.g., depleted, natural flow-dominated, and human flow-dominated). We apply this approach to selected regions in the USA, Germany and Iran to evaluate the current aquifer regime. We subsequently present two scenarios of changes in human water withdrawals and return flow to the system (individually and combined). Results show that approximately one-third of the selected aquifers in the USA, and half of the selected aquifers in Iran are dominated by human activities, while the selected aquifers in Germany are natural flow-dominated. The scenario analysis results also show that reduced human withdrawals could help with regime change in some aquifers. For instance, in two of the selected USA aquifers, a decrease in anthropogenic influences by ~20% may change the condition of depleted regime to natural flow-dominated regime. We specifically highlight a trending threat to the sustainability of groundwater in northwest Iran and California, and the need for more careful assessment and monitoring practices as well as strict regulations to mitigate the negative impacts of groundwater overexploitation. PMID- 29018216 TI - Structural and mechanistic characterization of an archaeal-like chaperonin from a thermophilic bacterium. AB - The chaperonins (CPNs) are megadalton sized hollow complexes with two cavities that open and close to encapsulate non-native proteins. CPNs are assigned to two sequence-related groups that have distinct allosteric mechanisms. In Group I CPNs a detachable co-chaperone, GroES, closes the chambers whereas in Group II a built in lid closes the chambers. Group I CPNs have a bacterial ancestry, whereas Group II CPNs are archaeal in origin. Here we describe open and closed crystal structures representing a new phylogenetic branch of CPNs. These Group III CPNs are divergent in sequence and structure from extant CPNs, but are closed by a built-in lid like Group II CPNs. A nucleotide-sensing loop, present in both Group I and Group II CPNs, is notably absent. We identified inter-ring pivot joints that articulate during ring closure. These Group III CPNs likely represent a relic from the ancestral CPN that formed distinct bacterial and archaeal branches.Chaperonins (CPNs) are ATP-dependent protein-folding machines. Here the authors present the open and closed crystal structures of a Group III CPN from the thermophilic bacterium Carboxydothermus hydrogenoformans, discuss its mechanism and structurally compare it with Group I and II CPNs. PMID- 29018218 TI - Associative visual learning by tethered bees in a controlled visual environment. AB - Free-flying honeybees exhibit remarkable cognitive capacities but the neural underpinnings of these capacities cannot be studied in flying insects. Conversely, immobilized bees are accessible to neurobiological investigation but display poor visual learning. To overcome this limitation, we aimed at establishing a controlled visual environment in which tethered bees walking on a spherical treadmill learn to discriminate visual stimuli video projected in front of them. Freely flying bees trained to walk into a miniature Y-maze displaying these stimuli in a dark environment learned the visual discrimination efficiently when one of them (CS+) was paired with sucrose and the other with quinine solution (CS-). Adapting this discrimination to the treadmill paradigm with a tethered, walking bee was successful as bees exhibited robust discrimination and preferred the CS+ to the CS- after training. As learning was better in the maze, movement freedom, active vision and behavioral context might be important for visual learning. The nature of the punishment associated with the CS- also affects learning as quinine and distilled water enhanced the proportion of learners. Thus, visual learning is amenable to a controlled environment in which tethered bees learn visual stimuli, a result that is important for future neurobiological studies in virtual reality. PMID- 29018219 TI - Spatially restricted loading of BRD2 at DNA double-strand breaks protects H4 acetylation domains and promotes DNA repair. AB - The n-terminal tail of histone H4 recruits repair proteins, including 53BP1, to DNA double-strand breaks (DSB) and undergoes dynamic acetylation during DSB repair. However, how H4 acetylation (H4Ac) recruits repair proteins and reorganizes chromatin during DNA repair is unclear. Here, we show that the bromodomain protein BRD2 is recruited to DSBs. This recruitment requires binding of BRD2's tandem bromodomains to H4Ac, which is generated at DSBs by the Tip60/KAT5 acetyltransferase. Binding of BRD2 to H4Ac protects the underlying acetylated chromatin from attack by histone deacetylases and allows acetylation to spread along the flanking chromatin. However, BRD2 recruitment is spatially restricted to a chromatin domain extending only 2 kb either side of the DSB, and BRD2 does not spread into the chromatin domains flanking the break. Instead, BRD2 facilitates recruitment of a second bromodomain protein, ZMYND8, which spreads along the flanking chromatin, but is excluded from the DSB region. This creates a spatially restricted H4Ac/BRD2 domain which reorganizes chromatin at DSBs, limits binding of the L3MBTL1 repressor and promotes 53BP1 binding, while limiting end resection of DSBs. BRD2 therefore creates a restricted chromatin environment surrounding DSBs which facilitates DSB repair and which is framed by extensive ZMYND8 domains on the flanking chromatin. PMID- 29018220 TI - Variant surface glycoprotein density defines an immune evasion threshold for African trypanosomes undergoing antigenic variation. AB - Trypanosoma brucei is a protozoan parasite that evades its host's adaptive immune response by repeatedly replacing its dense variant surface glycoprotein (VSG) coat from its large genomic VSG repertoire. While the mechanisms regulating VSG gene expression and diversification have been examined extensively, the dynamics of VSG coat replacement at the protein level, and the impact of this process on successful immune evasion, remain unclear. Here we evaluate the rate of VSG replacement at the trypanosome surface following a genetic VSG switch, and show that full coat replacement requires several days to complete. Using in vivo infection assays, we demonstrate that parasites undergoing coat replacement are only vulnerable to clearance via early IgM antibodies for a limited time. Finally, we show that IgM loses its ability to mediate trypanosome clearance at unexpectedly early stages of coat replacement based on a critical density threshold of its cognate VSGs on the parasite surface. Trypanosoma brucei evades the host immune system through replacement of a variant surface glycoprotein (VSG) coat. Here, the authors show that VSG replacement takes several days to complete, and the parasite is vulnerable to the host immune system for a short period of time during the process. PMID- 29018221 TI - Temporal dynamics of the mimetic allele frequency at the doublesex locus, which controls polymorphic Batesian mimicry in Papilio memnon butterflies. AB - Tracking allele frequencies is essential for understanding how polymorphisms of adaptive traits are maintained. In Papilio memnon butterflies, which exhibit a female-limited Batesian mimicry polymorphism (wing-pattern polymorphism), two alleles at the doublesex (dsx) locus correspond to mimetic and non-mimetic forms in females; males carry both dsx alleles but display only the non-mimetic form. This polymorphism is thought to be maintained by a negative frequency-dependent selection. By tracking dsx allele frequencies in both sexes at a Taiwanese site over four years, we found that the mimetic allele persists at intermediate frequencies even when the unpalatable model papilionid butterflies (Pachliopta and Atrophaneura species) were very rare or absent. The rates of male mate choice did not differ between the two female forms; neither did insemination number nor age composition, suggesting equivalent reproductive performance of the two forms over time. Our results characterised the temporal dynamics of the mimetic allele frequency in the field for the first time and give insights into underlying processes involved in the persistence of the female-limited Batesian mimicry polymorphism. PMID- 29018222 TI - Spatial-temporal distribution of dengue and climate characteristics for two clusters in Sri Lanka from 2012 to 2016. AB - Dengue is a vector-borne disease causing high morbidity and mortality in tropical and subtropical countries. Urbanization, globalization, and lack of effective mosquito control have lead to dramatically increased frequency and magnitude of dengue epidemic in the past 40 years. The virus and the mosquito vectors keep expanding geographically in the tropical regions of the world. Using the hot spot analysis and the spatial-temporal clustering method, we investigated the spatial temporal distribution of dengue in Sri Lanka from 2012 to 2016 to identify spatial-temporal clusters and elucidate the association of climatic factors with dengue incidence. We detected two important spatial-temporal clusters in Sri Lanka. Dengue incidences were predicted by combining historical dengue incidence data with climate data, and hot and cold spots were forecasted using the predicted dengue incidences to identify areas at high risks. Targeting the hot spots during outbreaks instead of all the regions can save resources and time for public health authorities. Our study helps better understand how climatic factors impact spatial and temporal spread of dengue virus. Hot spot prediction helps public health authorities forecast future high risk areas and direct control measures to minimize cost on health, time, and economy. PMID- 29018223 TI - Mechanistic Evaluation and Translational Signature of Gemcitabine-induced Chemoresistance by Quantitative Phosphoproteomics Analysis with iTRAQ Labeling Mass Spectrometry. AB - One of the main causations of the poor prognosis of pancreatic cancer is the lack of effective chemotherapies. Gemcitabine is a widely used chemotherapeutic drug, but limited therapeutic efficacy is achieved due to chemoresistance. Recent studies demonstrated that the presence of cancer stem cells may lead to the failure of chemotherapy. Moreover, gemcitabine can promote the stemness of pancreatic cancer cells. We detected the alterations in protein phosphorylation and signaling pathways in pancreatic cancer cells after gemcitabine treatment using iTRAQ labeling LC-MS/MS, because it was featured with the advantages of strong separation ability and analysis range. A total of 232 differentially expressed phosphorylated proteins were identified in this study. Gene Ontology analysis revealed that nuclear lumen, nuclear part and organelle lumen were enriched for cell components and protein binding, poly (A) RNA binding and RNA binding were enriched for molecular function. A variety of signaling pathways were enriched based on KEGG analysis. AMPK, mTOR and PI3K/Akt pathways were verified after gemcitabine exposure. Moreover, we found there were complex interactions of phosphorylated proteins in modulating cancer stemness induced by gemcitabine exposure based on PPIs map. Our experiments may identify potential targets and strategies for sensitizing pancreatic cancer cells to gemcitabine. PMID- 29018224 TI - Integrative analysis of genomic and epigenomic regulation of the transcriptome in liver cancer. AB - Hepatocellular carcinoma harbors numerous genomic and epigenomic aberrations of DNA copy numbers and DNA methylation. Transcriptomic deregulation by these aberrations plays key driver roles in heterogeneous progression of cancers. Here, we profile DNA copy numbers, DNA methylation, and messenger RNA expression levels from 64 cases of hepatocellular carcinoma specimens. We find that the frequencies of the aberrancies of the DNA copy-number-correlated (CNVcor) expression genes and the methylation-correlated expression (METcor) genes are co-regulated significantly. Multi-omics integration of the CNVcor and METcor genes reveal three prognostic subtypes of hepatocellular carcinoma, which can be validated by an independent data. The most aggressive subtype expressing stemness genes has frequent BAP1 mutations, implying its pivotal role in the aggressive tumor progression. In conclusion, our integrative analysis of genomic and epigenomic regulation provides new insights on the multi-layered pathobiology of hepatocellular carcinoma, which might be helpful in developing precision management for hepatocellular carcinoma patients.Hepatocellular carcinoma is known to harbour numerous genomic and epigenomic aberrations, driving transcriptomic deregulation. Here, the authors integrate genomic, epigenomic, and expression data to reveal three prognostic subtypes, providing insight to the pathobiology of hepatocellular carcinoma. PMID- 29018225 TI - S1P1 deletion differentially affects TH17 and Regulatory T cells. AB - Sphingosine-1 phosphate receptor 1 (S1P1) is critical for the egress of T and B cells out of lymphoid organs. Although S1P1 agonist fingolimod is currently used for the treatment of multiple sclerosis (MS) little is known how S1P1 signaling regulates Th17 and Treg cell homeostasis. To study the impact of S1P1 signaling on Th17 and Treg cell biology, we specifically deleted S1P1 in Th17 and Treg cells using IL-17A Cre and Foxp3 Cre mice, respectively. Deletion of S1P1 in Th17 cells conferred resistance to experimental autoimmune encephalomyelitis (EAE). On the other hand, permanent deletion of S1P1 in Treg cells resulted in autoimmunity and acute deletion rendered mice more susceptible to EAE. Importantly, our study revealed that S1P1 not only regulated the egress of Treg cells out of lymphoid organs and subsequent non-lymphoid tissue distribution but also their phenotypic diversity. Most of the Treg cells found in S1P1-deficient mice as well as MS patients on fingolimod therapy had an activated phenotype and were more prone to apoptosis, thus converted to effector Treg. Our results provide novel insight into the functions of S1P1 and potential impact of long term fingolimod use on Th17 and Treg cell biology and general health in MS patients. PMID- 29018226 TI - Atmospheric observations show accurate reporting and little growth in India's methane emissions. AB - Changes in tropical wetland, ruminant or rice emissions are thought to have played a role in recent variations in atmospheric methane (CH4) concentrations. India has the world's largest ruminant population and produces ~ 20% of the world's rice. Therefore, changes in these sources could have significant implications for global warming. Here, we infer India's CH4 emissions for the period 2010-2015 using a combination of satellite, surface and aircraft data. We apply a high-resolution atmospheric transport model to simulate data from these platforms to infer fluxes at sub-national scales and to quantify changes in rice emissions. We find that average emissions over this period are 22.0 (19.6-24.3) Tg yr-1, which is consistent with the emissions reported by India to the United Framework Convention on Climate Change. Annual emissions have not changed significantly (0.2 +/- 0.7 Tg yr-1) between 2010 and 2015, suggesting that major CH4 sources did not change appreciably. These findings are in contrast to another major economy, China, which has shown significant growth in recent years due to increasing fossil fuel emissions. However, the trend in a global emission inventory has been overestimated for China due to incorrect rate of fossil fuel growth. Here, we find growth has been overestimated in India but likely due to ruminant and waste sectors.India's methane emissions have been quantified using atmospheric measurements to provide an independent comparison with reported emissions. Here Ganesan et al. find that derived methane emissions are consistent with India's reports and no significant trend has been observed between 2010 2015. PMID- 29018227 TI - The human blood parasite Schistosoma mansoni expresses extracellular tegumental calpains that cleave the blood clotting protein fibronectin. AB - Schistosomes are intravascular, parasitic flatworms that cause debilitating disease afflicting >200 million people. Proteins expressed at the host-parasite interface likely play key roles in modifying the worm's local environment to ensure parasite survival. Proteomic analysis reveals that two proteases belonging to the calpain family (SmCalp1 and SmCalp2) are expressed in the Schistosoma mansoni tegument. We have cloned both; while highly conserved in domain organization they display just 31% amino acid sequence identity. Both display high relative expression in the parasite's intravascular life forms. Immunolocalization and activity based protein profiling experiments confirm the presence of the enzymes at the host-parasite interface. Living parasites exhibit surface calpain activity that is blocked in the absence of calcium and in the presence of calpain inhibitors (E64c, PD 150606 and calpastatin). While calpains are invariably reported to be exclusively intracellular (except in diseased or injured tissues), our data show that schistosomes display unique, constitutive, functional extracellular calpain activity. Furthermore we show that the worms are capable of cleaving the host blood clotting protein fibronectin and that this activity can be inhibited by E64c. We hypothesize that SmCalp1 and/or SmCalp2 perform this cleavage function to impede blood clot formation around the worms in vivo. PMID- 29018228 TI - Charge and Lattice Fluctuations in Molecule-Based Spin Liquids. AB - Spin liquid (SL) systems have been the subject of much attention recently, as they have been theoretically predicted to not freeze, even at 0 K. Despite extensive searches being made for such a system, only a few candidates have been found. All of these candidates share geometrical frustrations that are based on triangular lattices. We applied vibrational spectroscopy to one of the candidates of a molecule-based SL system, and we compared its results against three antiferromagnetic compounds and four charge-ordered compounds. All of their structural motifs belong to triangular lattices. The C=C stretching modes in the SL state indicated that there were charge and lattice fluctuations. These fluctuations were suppressed but non-negligible in the AF compounds. This finding is potentially significant, as it indicates that a hidden lattice and charge fluctuation are the driving force of a geometrical frustration, which eventually leads to a SL state. PMID- 29018229 TI - Improving extinction projections across scales and habitats using the countryside species-area relationship. AB - The species-area relationship (SAR) has been often used to project species extinctions as a consequence of habitat loss. However, recent studies have suggested that the SAR may overestimate species extinctions, at least in the short-term. We argue that the main reason for this overestimation is that the classic SAR ignores the persistence of species in human-modified habitats. We use data collected worldwide to analyse what is the fraction of bird and plant species that remain in different human-modified habitats at the local scale after full habitat conversion. We observe that both taxa have consistent responses to the different land-use types, with strongest reductions in species richness in cropland across the globe, and in pasture in the tropics. We show that the results from these studies cannot be linearly scaled from plots to large regions, as this again overestimates the impacts of land-use change on biodiversity. The countryside SAR provides a unifying framework to incorporate both the effect of species persistence in the landscape matrix and the non-linear response of the proportion of species extinctions to sampling area, generating more realistic projections of biodiversity loss. PMID- 29018230 TI - Affective Touch Enhances Self-Face Recognition During Multisensory Integration. AB - Multisensory integration is a powerful mechanism for constructing body awareness and key for the sense of selfhood. Recent evidence has shown that the specialised C tactile modality that gives rise to feelings of pleasant, affective touch, can enhance the experience of body ownership during multisensory integration. Nevertheless, no study has examined whether affective touch can also modulate psychological identification with our face, the hallmark of our identity. The current study used the enfacement illusion paradigm to investigate the role of affective touch in the modulation of self-face recognition during multisensory integration. In the first experiment (N = 30), healthy participants were stroked on the cheek while they were looking at another face being stroked on the cheek in synchrony or asynchrony with affective (slow; CT-optimal) vs. neutral (fast; CT-suboptimal) touch. In the second experiment (N = 38) spatial incongruence of touch (cheek vs. forehead) was used as a control condition instead of temporal asynchrony. Overall, our data suggest that CT-optimal, affective touch enhances subjective (but not behavioural) self-face recognition during synchronous and spatially congruent integration of different sensations and possibly reduces deafference during asynchronous multisensory integration. We discuss the role of affective touch in shaping the more social aspects of our self. PMID- 29018231 TI - Biochemical mechanisms of dose-dependent cytotoxicity and ROS-mediated apoptosis induced by lead sulfide/graphene oxide quantum dots for potential bioimaging applications. AB - Colloidal quantum dots (CQD) have attracted considerable attention for biomedical diagnosis and imaging as well as biochemical analysis and stem cell tracking. In this study, quasi core/shell lead sulfide/reduced graphene oxide CQD with near infrared emission (1100 nm) were prepared for potential bioimaging applications. The nanocrystals had an average diameter of ~4 nm, a hydrodynamic size of ~8 nm, and a high quantum efficiency of 28%. Toxicity assay of the hybrid CQD in the cultured human mononuclear blood cells does not show cytotoxicity up to 200 ug/ml. At high concentrations, damage to mitochondrial activity and mitochondrial membrane potential (MMP) due to the formation of uncontrollable amounts of intracellular oxygen radicals (ROS) was observed. Cell membrane and Lysosome damage or a transition in mitochondrial permeability were also noticed. Understanding of cell-nanoparticle interaction at the molecular level is useful for the development of new fluorophores for biomedical imaging. PMID- 29018232 TI - High Reflectance Nanoscale V/Sc Multilayer for Soft X-ray Water Window Region. AB - V/Sc multilayer is experimentally demonstrated for the first time as a high reflectance mirror for the soft X-ray water window region. It primarily works at above the Sc-L edge (lambda = 3.11 nm) under near normal incidence while a second peak appears at above the V-L edge (lambda = 2.42 nm) under grazing incidence. The V/Sc multilayer fabricated with a d-spacing of 1.59 nm and 30 bilayers has a smaller interface width (sigma = 0.27 and 0.32 nm) than the conventional used Cr/Sc (sigma = 0.28 and 0.47 nm). For V/Sc multilayer with 30 bilayers, the introduction of B4C barrier layers has little improvement on the interface structure. As the number of bilayers increasing to 400, the growth morphology and microstructure of the V/Sc layers evolves with slightly increased crystallization. Nevertheless, the surface roughness remains to be 0.25 nm. A maximum soft X-ray reflectance of 18.4% is measured at lambda = 3.129 nm at 9 degrees off-normal incidence using the 400-bilayers V/Sc multilayer. According to the fitted model, an s-polarization reflectance of 5.2% can also be expected at lambda = 2.425 nm under 40 degrees incidence. Based on the promising experimental results, further improvement of the reflectance can be achieved by using a more stable deposition system, exploring different interface engineering methods and so on. PMID- 29018233 TI - Altered neurovascular coupling as measured by optical imaging: a biomarker for Alzheimer's disease. AB - Neurovascular coupling can be directly assessed by retinal vessel response to flickering light using optical imaging methods. The response is altered in a number of ocular and cardiovascular diseases. Whether it is altered in Alzheimer's disease (AD) is investigated. Retinal vessel reaction to monochromatic flicker stimulation was examined by Dynamic Vessel Analyzer independent of the commercial software in elderly subjects: 15 patients with mild to-moderate dementia due to AD (ADD); 24 patients with mild cognitive impairment due to AD (MCI); 15 cognitively healthy controls (HC). Retinal vessels in ADD showed a more emphasized and delayed reactive dilation as compared to HC. In MCI, these aspects still differed from those seen in ADD. Maximal arterial reaction was increased and dilation was delayed in ADD as compared to HC (p = 0.004 and p < 0.001) and to MCI (p = 0.058 and p = 0.004), respectively. Maximal venous reaction was increased in ADD as compared to HC (p = 0.001) and to MCI (p = 0.007), respectively. This finding suggests that retinal neuronal activity is either increased or feed-back loop of neurovascular coupling is damaged with differentiating alterations across the spectrum of AD. Thus, retinal vessel reaction to flicker stimulation is considered a promising non-invasive, widely available and easy-to-administer future biomarker for the diagnosis and monitoring of AD. PMID- 29018235 TI - Phosphine inhibits transcription of the catalase gene through the DRE/DREF system in Drosophila melanogaster. AB - Phosphine (PH3) is a toxin commonly used for pest control. Its toxicity is attributed primarily to its ability to induce oxidative damage. Our previous work showed that phosphine could disrupt the cell antioxidant defence system by inhibiting expression of the catalase gene in Drosophila melanogaster (DmCAT). However, the exact mechanism of this inhibition remains unclear. Here, we implemented a luciferase reporter assay driven by the DmCAT promoter in D. melanogaster S2 cells and showed that this reporter could be inhibited by phosphine treatment. A minimal fragment of the promoter (-94 to 0 bp), which contained a DNA replication-related element (DRE) consensus motif (-78 to -85 bp), was sufficient for phosphine-mediated reporter inhibition, suggesting the involvement of the transcription factor DREF. Furthermore, phosphine treatment led to a reduction in DREF expression and consequent repression of DmCAT transcription. Our results provide new insights on the molecular mechanism of phosphine-mediated catalase inhibition. Phosphine treatment leads to reduced levels of the transcription factor DREF, a positive regulator of the DmCAT gene, thereby resulting in the repression of DmCAT at transcriptional level. PMID- 29018236 TI - Automatic digital quantification of bone marrow myeloma volume in appendicular skeletons - clinical implications and prognostic significance. AB - Multiple myeloma (MM) is a clonal plasma cell disorder originating in bone marrow. Whole body low-dose multidetector CT (MDCT) can depict bone marrow infiltration by myeloma cells into the adipose-rich fatty marrow of the appendicular skeleton. However, automated and objective volume measurement of bone marrow infiltration has not been established, and its clinical relevance remains unclear. We therefore developed novel CT post-processing software (MABLE software) and measured the total sum of CT values (cumulative CT value, cCTv) representing bone marrow infiltration, by combining volume and voxel-based CT values. The cCTv was greater in patients with symptomatic MM than in those with smouldering MM or monoclonal gammopathy of unknown significance. Patients with revised International Staging System (R-ISS) III had a higher cCTv than those with R-ISS I or II. Age, albumin, and M-protein levels independently predicted cCTv. Mixed graphical model analysis revealed direct relationships between cCTv and age or R-ISS. Tree-structured survival analysis and multivariate Cox analysis revealed that a cCTv greater than or equal to 4.4 was independently prognostic for overall survival. Anti-myeloma therapy reduced cCTv after treatment. These findings suggest that the automatically calculated cCTv reflects disease aggressiveness and is useful for accurate prognostic prediction in MM patients. PMID- 29018234 TI - Homo-PROTACs: bivalent small-molecule dimerizers of the VHL E3 ubiquitin ligase to induce self-degradation. AB - E3 ubiquitin ligases are key enzymes within the ubiquitin proteasome system which catalyze the ubiquitination of proteins, targeting them for proteasomal degradation. E3 ligases are gaining importance as targets to small molecules, both for direct inhibition and to be hijacked to induce the degradation of non native neo-substrates using bivalent compounds known as PROTACs (for 'proteolysis targeting chimeras'). We describe Homo-PROTACs as an approach to dimerize an E3 ligase to trigger its suicide-type chemical knockdown inside cells. We provide proof-of-concept of Homo-PROTACs using diverse molecules composed of two instances of a ligand for the von Hippel-Lindau (VHL) E3 ligase. The most active compound, CM11, dimerizes VHL with high avidity in vitro and induces potent, rapid and proteasome-dependent self-degradation of VHL in different cell lines, in a highly isoform-selective fashion and without triggering a hypoxic response. This approach offers a novel chemical probe for selective VHL knockdown, and demonstrates the potential for a new modality of chemical intervention on E3 ligases.Targeting the ubiquitin proteasome system to modulate protein homeostasis using small molecules has promising therapeutic potential. Here the authors describe Homo-PROTACS: small molecules that can induce the homo-dimerization of E3 ubiquitin ligases and cause their proteasome-dependent degradation. PMID- 29018237 TI - High-throughput analysis unveils a highly shared satellite DNA library among three species of fish genus Astyanax. AB - The high-throughput analysis of satellite DNA (satDNA) content, by means of Illumina sequencing, unveiled 45 satDNA families in the genome of Astyanax paranae, with repeat unit length (RUL) ranging from 6 to 365 bp and marked predominance of short satellites (median length = 59 bp). The analysis of chromosomal location of 35 satDNAs in A. paranae, A. fasciatus and A. bockmanni revealed that most satellites are shared between the three species and show highly similar patterns of chromosome distribution. The high similarity in satellite DNA content between these species is most likely due to their recent common descent. Among the few differences found, the ApaSat44-21 satellite was present only on the B chromosome of A. paranae, but not on the A or B chromosomes of the two other species. Likewise, the ApaSat20-18 satellite was B-specific in A. paranae but was however present on A and B chromosomes of A. fasciatus and A. bockmanni. The isochromosome nature of B chromosomes in these species was evidenced by the symmetric location of many satDNAs on both B chromosome arms, and the lower symmetry observed in the A. fasciatus BfMa chromosome suggests that it is older than those analyzed in A. paranae and A. bockmanni. PMID- 29018238 TI - Smart patterned surfaces with programmable thermal emissivity and their design through combinatorial strategies. AB - The emissivity of common materials remains constant with temperature variations, and cannot drastically change. However, it is possible to design its entire behaviour as a function of temperature, and to significantly alter the thermal emissivity of a surface through the combination of different patterns and materials. We show that smart patterned surfaces consisting of smaller structures (motifs) may be designed to respond uniquely through combinatorial strategies by transforming themselves. The smart surfaces can passively manipulate thermal radiation-without the use of electronics-because their modus operandi has already been programmed into their intrinsic characteristics; the environment provides the energy required for their activation. Each motif emits thermal radiation in a certain manner, as it changes its geometry; however, the spatial distribution of these motifs causes them to interact with each other. Therefore, their combination and interaction determine the global behaviour of the surfaces, thus enabling their a priori design. The emissivity behaviour is not random; it is determined by two fundamental parameters, namely the combination of orientations in which the motifs open (n-fold rotational symmetry) and the combination of materials (colours) on the motifs; these generate functions which fully determine the dependency of the emissivity on the temperature. PMID- 29018240 TI - Buoyancy effects on the radiative magneto Micropolar nanofluid flow with double stratification, activation energy and binary chemical reaction. AB - A mathematical model has been developed to examine the magneto hydrodynamic micropolar nanofluid flow with buoyancy effects. Flow analysis is carried out in the presence of nonlinear thermal radiation and dual stratification. The impact of binary chemical reaction with Arrhenius activation energy is also considered. Apposite transformations are engaged to transform nonlinear partial differential equations to differential equations with high nonlinearity. Resulting nonlinear system of differential equations is solved by differential solver method in Maple software which uses Runge-Kutta fourth and fifth order technique (RK45). To authenticate the obtained results, a comparison with the preceding article is also made. The evaluations are executed graphically for numerous prominent parameters versus velocity, micro rotation component, temperature, and concentration distributions. Tabulated numerical calculations of Nusselt and Sherwood numbers with respective well-argued discussions are also presented. Our findings illustrate that the angular velocity component declines for opposing buoyancy forces and enhances for aiding buoyancy forces by changing the micropolar parameter. It is also found that concentration profile increases for higher values of chemical reaction parameter, whereas it diminishes for growing values of solutal stratification parameter. PMID- 29018239 TI - A blueprint for robust crosslinking of mobile species in biogels with weakly adhesive molecular anchors. AB - Biopolymeric matrices can impede transport of nanoparticulates and pathogens by entropic or direct adhesive interactions, or by harnessing "third-party" molecular anchors to crosslink nanoparticulates to matrix constituents. The trapping potency of anchors is dictated by association rates and affinities to both nanoparticulates and matrix; the popular dogma is that long-lived, high affinity bonds to both species facilitate optimal trapping. Here we present a contrasting paradigm combining experimental evidence (using IgG antibodies and Matrigel(r)), a theoretical framework (based on multiple timescale analysis), and computational modeling. Anchors that bind and unbind rapidly from matrix accumulate on nanoparticulates much more quickly than anchors that form high affinity, long-lived bonds with matrix, leading to markedly greater trapping potency of multiple invading species without saturating matrix trapping capacity. Our results provide a blueprint for engineering molecular anchors with finely tuned affinities to effectively enhance the barrier properties of biogels against diverse nanoparticulate species.Biological polymeric matrices often use molecular anchors, such as antibodies, to trap nanoparticulates. Here, the authors find that anchor-matrix bonds that are weak and short-lived confer superior trapping potency, contrary to the prevailing belief that effective molecular anchors should form strong bonds to both the matrix and the nanoparticulates. PMID- 29018241 TI - Eugenol inhibits oxidative phosphorylation and fatty acid oxidation via downregulation of c-Myc/PGC-1beta/ERRalpha signaling pathway in MCF10A-ras cells. AB - Alteration in cellular energy metabolism plays a critical role in the development and progression of cancer. Targeting metabolic pathways for cancer treatment has been investigated as potential preventive or therapeutic methods. Eugenol (Eu), a major volatile constituent of clove essential oil mainly obtained from Syzygium, has been reported as a potential chemopreventive drug. However, the mechanism by which Eu regulates cellular energy metabolism is still not well defined. This study was designed to determine the effect of Eu on cellular energy metabolism during early cancer progression employing untransformed and H-ras oncogene transfected MCF10A human breast epithelial cells. Eu showed dose-dependent selective cytotoxicity toward MCF10A-ras cells but exhibited no apparent cytotoxicity in MCF10A cells. Treatment with Eu also significantly reduced intracellular ATP levels in MCF10A-ras cells but not in MCF10A cells. This effect was mediated mainly through inhibiting oxidative phosphorylation (OXPHOS) complexs and the expression of fatty acid oxidation (FAO) proteins including PPARalpha, MCAD and CPT1C by downregulating c-Myc/PGC-1beta/ERRalpha pathway and decreasing oxidative stress in MCF10A-ras cells. These results indicate a novel mechanism involving the regulation of cellular energy metabolism by which Eu may prevent breast cancer progression. PMID- 29018242 TI - Nuclear factor (erythroid derived 2)-like 2 activation increases exercise endurance capacity via redox modulation in skeletal muscles. AB - Sulforaphane (SFN) plays an important role in preventing oxidative stress by activating the nuclear factor (erythroid derived 2)-like 2 (Nrf2) signalling pathway. SFN may improve exercise endurance capacity by counteracting oxidative stress-induced damage during exercise. We assessed running ability based on an exhaustive treadmill test (progressive-continuous all-out) and examined the expression of markers for oxidative stress and muscle damage. Twelve- to 13-week old Male wild-type mice (Nrf2 +/+) and Nrf2-null mice (Nrf2 -/-) on C57BL/6J background were intraperitoneally injected with SFN or vehicle prior to the test. The running distance of SFN-injected Nrf2 +/+ mice was significantly greater compared with that of uninjected mice. Enhanced running capacity was accompanied by upregulation of Nrf2 signalling and downstream genes. Marker of oxidative stress in SFN-injected Nrf2 +/+ mice were lower than those in uninjected mice following the test. SFN produced greater protection against muscle damage during exhaustive exercise conditions in Nrf2 +/+ mice than in Nrf2 -/- mice. SFN induced Nrf2 upregulation, and its antioxidative effects, might play critical roles in attenuating muscle fatigue via reduction of oxidative stress caused by exhaustive exercise. This in turn leads to enhanced exercise endurance capacity. These results provide new insights into SFN-induced upregulation of Nrf2 and its role in improving exercise performance. PMID- 29018243 TI - 6E11, a highly selective inhibitor of Receptor-Interacting Protein Kinase 1, protects cells against cold hypoxia-reoxygenation injury. AB - Necroptosis is a programmed cell death pathway that has been shown to be of central pathophysiological relevance in multiple disorders (hepatitis, brain and cardiac ischemia, pancreatitis, viral infection and inflammatory diseases). Necroptosis is driven by two serine threonine kinases, RIPK1 (Receptor Interacting Protein Kinase 1) and RIPK3, and a pseudo-kinase MLKL (Mixed Lineage Kinase domain-Like) associated in a multi-protein complex called necrosome. In order to find new inhibitors for use in human therapy, a chemical library containing highly diverse chemical structures was screened using a cell-based assay. The compound 6E11, a natural product derivative, was characterized as a positive hit. Interestingly, this flavanone compound: inhibits necroptosis induced by death receptors ligands TNF-alpha (Tumor Necrosis Factor) or TRAIL (TNF-Related Apoptosis-Inducing Ligand); is an extremely selective inhibitor, among kinases, of human RIPK1 enzymatic activity with a nM Kd; has a non-ATP competitive mode of action and a novel putative binding site; is weakly cytotoxic towards human primary blood leukocytes or retinal pigment epithelial cells at effective concentrations; protects human aortic endothelial cells (HAEC) from cold hypoxia/reoxygenation injury more effectively than necrostatin-1 (Nec-1) and Nec-1s. Altogether, these data demonstrate that 6E11 is a novel potent small molecular inhibitor of RIPK1-driven necroptosis. PMID- 29018244 TI - Bioengineering of functional human induced pluripotent stem cell-derived intestinal grafts. AB - Patients with short bowel syndrome lack sufficient functional intestine to sustain themselves with enteral intake alone. Transplantable vascularized bioengineered intestine could restore nutrient absorption. Here we report the engineering of humanized intestinal grafts by repopulating decellularized rat intestinal matrix with human induced pluripotent stem cell-derived intestinal epithelium and human endothelium. After 28 days of in vitro culture, hiPSC derived progenitor cells differentiate into a monolayer of polarized intestinal epithelium. Human endothelial cells seeded via native vasculature restore perfusability. Ex vivo isolated perfusion testing confirms transfer of glucose and medium-chain fatty acids from lumen to venous effluent. Four weeks after transplantation to RNU rats, grafts show survival and maturation of regenerated epithelium. Systemic venous sampling and positron emission tomography confirm uptake of glucose and fatty acids in vivo. Bioengineering intestine on vascularized native scaffolds could bridge the gap between cell/tissue-scale regeneration and whole organ-scale technology needed to treat intestinal failure patients.There is a need for humanised grafts to treat patients with intestinal failure. Here, the authors generate intestinal grafts by recellularizing native intestinal matrix with human induced pluripotent stem cell-derived epithelium and human endothelium, and show nutrient absorption after transplantation in rats. PMID- 29018247 TI - Gravitational-wave localization alone can probe origin of stellar-mass black hole mergers. AB - The recent discovery of gravitational waves from stellar-mass binary black hole mergers by the Laser Interferometer Gravitational-wave Observatory opened the door to alternative probes of stellar and galactic evolution, cosmology and fundamental physics. Probing the origin of binary black hole mergers will be difficult due to the expected lack of electromagnetic emission and limited localization accuracy. Associations with rare host galaxy types-such as active galactic nuclei-can nevertheless be identified statistically through spatial correlation. Here we establish the feasibility of statistically proving the connection between binary black hole mergers and active galactic nuclei as hosts, even if only a sub-population of mergers originate from active galactic nuclei. Our results are the demonstration that the limited localization of gravitational waves, previously written off as not useful to distinguish progenitor channels, can in fact contribute key information, broadening the range of astrophysical questions probed by binary black hole observations.Binary black hole mergers have recently been observed through the detection of gravitational wave signatures. The authors demonstrate that their association with active galactic nuclei can be made through a statistical spatial correlation. PMID- 29018248 TI - Sharing of science is most likely among male scientists. AB - Humans are considered to be highly prosocial, especially in comparison to other species. However, most tests of prosociality are conducted in highly artificial settings among anonymous participants. To gain a better understanding of how human hyper-cooperation may have evolved, we tested humans' willingness to share in one of the most competitive fields of our current society: academia. Researchers were generally prosocial with 80% sharing a PDF of one of their latest papers, and almost 60% willing to send us their data. Intriguingly, prosociality was most prominent from male to male, and less likely among all other sex-combinations. This pattern suggests the presence of male-exclusive networks in science, and may be based on an evolutionary history promoting strong male bonds. PMID- 29018246 TI - A minimal resting time of 25 min is needed before measuring stabilized blood pressure in subjects addressed for vascular investigations. AB - Blood pressure (BP) measurement is a central element in clinical practice. According to international recommendations 3 to 5 minutes of resting is needed before blood pressure measurement. Surprisingly, no study has modelled the time course of BP decrease and the minimum resting-time before BP measurement. A cross sectional bicentric observational study was performed including outpatients addressed for vascular examination. Using two automatic BP monitors we recorded the blood pressure every minute during 11 consecutive minutes. The data was analyzed by non-linear mixed effect regression. Systolic (SBP) and diastolic BPs were studied and we tested the effect of covariates on its evolution through log likelihood ratio tests. We included 199 patients (66+/-13years old). SBP was found to decrease exponentially. Simulations based on the final model show that only half the population reaches a stabilized SBP (defined as SBP + 5 mmHg) after 5 min of resting-time while it takes 25 min to ensure 90% of the population has a stabilized SBP. In conclusion, our results and simulations suggest that 5 minutes are not enough to achieve a stabilized SBP in most patients and at least 25 minutes are required. This questions whether the diagnosis of hypertension can be reliably made during routine visits in general practitioners' offices. PMID- 29018245 TI - Transient postnatal overfeeding causes liver stress-induced premature senescence in adult mice. AB - Unbalanced nutrition early in life is increasingly recognized as an important factor in the development of chronic, non-communicable diseases at adulthood, including metabolic diseases. We aimed to determine whether transient postnatal overfeeding (OF) leads to liver stress-induced premature senescence (SIPS) of hepatocytes in association with liver structure and hepatic function alterations. Litters sizes of male C57BL/6 mice were adjusted to 9 pups (normal feeding, NF) or reduced to 3 pups during the lactation period to induce transient postnatal OF. Compared to the NF group, seven-month-old adult mice transiently overfed during the postnatal period were overweight and developed glucose intolerance and insulin resistance. Their livers showed microsteatosis and fibrosis, while hepatic insulin signaling and glucose transporter protein expressions were altered. Increased hepatic oxidative stress (OS) was observed, with increased superoxide anion production, glucose-6-phosphate dehydrogenase protein expression, oxidative DNA damage and decreased levels of antioxidant defense markers, such as superoxide dismutase and catalase proteins. Hepatocyte senescence was characterized by increased p21WAF, p53, Acp53, p16INK4a and decreased pRb/Rb and Sirtuin-1 (SIRT-1) protein expression levels. Transient postnatal OF induces liver OS at adulthood, associated with hepatocyte SIPS and alterations in liver structure and hepatic functions, which could be mediated by a SIRT-1 deficiency. PMID- 29018249 TI - Systematic Moiety Variations of Ultrashort Peptides Produce Profound Effects on Self-Assembly, Nanostructure Formation, Hydrogelation, and Phase Transition. AB - Self-assembly of small biomolecules is a prevalent phenomenon that is increasingly being recognised to hold the key to building complex structures from simple monomeric units. Small peptides, in particular ultrashort peptides containing up to seven amino acids, for which our laboratory has found many biomedical applications, exhibit immense potential in this regard. For next generation applications, more intricate control is required over the self assembly processes. We seek to find out how subtle moiety variation of peptides can affect self-assembly and nanostructure formation. To this end, we have selected a library of 54 tripeptides, derived from systematic moiety variations from seven tripeptides. Our study reveals that subtle structural changes in the tripeptides can exert profound effects on self-assembly, nanostructure formation, hydrogelation, and even phase transition of peptide nanostructures. By comparing the X-ray crystal structures of two tripeptides, acetylated leucine-leucine glutamic acid (Ac-LLE) and acetylated tyrosine-leucine-aspartic acid (Ac-YLD), we obtained valuable insights into the structural factors that can influence the formation of supramolecular peptide structures. We believe that our results have major implications on the understanding of the factors that affect peptide self assembly. In addition, our findings can potentially assist current computational efforts to predict and design self-assembling peptide systems for diverse biomedical applications. PMID- 29018250 TI - Molecular analysis of pyrazinamide resistance in Mycobacterium tuberculosis in Vietnam highlights the high rate of pyrazinamide resistance-associated mutations in clinical isolates. AB - Pyrazinamide (PZA) is a key antibiotic in current anti-tuberculosis regimens. Although the WHO has stressed the urgent need to obtain data on PZA resistance, in high tuberculosis burden countries, little is known about the level of PZA resistance, the genetic basis of such resistance or its link with Mycobacterium tuberculosis families. In this context, this study assessed PZA resistance through the molecular analysis of 260 Vietnamese M. tuberculosis isolates. First line drug susceptibility testing, pncA gene sequencing, spoligotyping and mycobacterial interspersed repetitive units-variable number of tandem repeats (MIRU-VNTR) typing were performed. Overall, the pncA mutation frequency was 38.1% (99 out of 260 isolates) but was higher than 72% (89 out of 123 isolates) in multidrug and quadruple-drug resistant isolates. Many different pncA mutations (71 types) were detected, of which 55 have been previously described and 50 were linked to PZA resistance. Among the 16 novel mutations, 14 are likely to be linked to PZA resistance because of their mutation types or codon positions. Genotype analysis revealed that PZA resistance can emerge in any M. tuberculosis cluster or family, although the mutation frequency was the highest in Beijing family isolates (47.7%, 62 out of 130 isolates). These data highlight the high rate of PZA resistance-associated mutations in M. tuberculosis clinical isolates in Vietnam and bring into question the use of PZA for current and future treatment regimens of multidrug-resistant tuberculosis without PZA resistance testing. PMID- 29018251 TI - Epidemiology and antifungal susceptibility of candidemia isolates of non-albicans Candida species from cancer patients. AB - Candidemia is a growing concern worldwide, and its species distribution has shifted toward non-albicans Candida in recent decades, especially in patients with malignancy. This study aimed to update the epidemiology and antifungal susceptibility of non-albicans candidemia isolates from the cancer patients. Adult cancer patients with non-albicans candidemia were recruited, and clinical data were retrospectively collected from five medical centers in Taiwan from 1 July 2011 to 30 June 2014. In vitro susceptibility was determined by the broth dilution method using a Sensititre YeastOne system and interpreted according to the guidelines of the Clinical and Laboratory Standards Institute. A total of 346 episodes of non-albicans candidemia were identified in cancer patients. Candida tropicalis was the most common species (n=145, 41.9%) and had the highest resistance rate to fluconazole (n=17, 13.9%) among all the preserved isolates, including C. tropicalis, Candida glabrata and Candida parapsilosis. A higher Charlson comorbidity index, non-albicans candidemia due to C. tropicalis, neutropenia and septic shock were independent predictors of 28-day mortality. In conclusion, the species distribution and antifungal susceptibility of non albicans candidemia isolates in our study differed from those in Western countries, providing useful information about local epidemiology for the selection of empirical antifungal agents for cancer patients. PMID- 29018252 TI - Neutralization of Zika virus by germline-like human monoclonal antibodies targeting cryptic epitopes on envelope domain III. AB - The Zika virus (ZIKV), a flavivirus transmitted by Aedes mosquitoes, has emerged as a global public health concern. Pre-existing cross-reactive antibodies against other flaviviruses could modulate immune responses to ZIKV infection by antibody dependent enhancement, highlighting the importance of understanding the immunogenicity of the ZIKV envelope protein. In this study, we identified a panel of human monoclonal antibodies (mAbs) that target domain III (DIII) of the ZIKV envelope protein from a very large phage-display naive antibody library. These germline-like antibodies, sharing 98%-100% hoLogy with their corresponding germline IGHV genes, bound ZIKV DIII specifically with high affinities. One mAb, m301, broadly neutralized the currently circulating ZIKV strains and showed a synergistic effect with another mAb, m302, in neutralizing ZIKV in vitro and in a mouse model of ZIKV infection. Interestingly, epitope mapping and competitive binding studies suggest that m301 and m302 bind adjacent regions of the DIII C-C' loop, which represents a recently identified cryptic epitope that is intermittently exposed in an uncharacterized virus conformation. This study extended our understanding of antigenic epitopes of ZIKV antibodies and has direct implications for the design of ZIKV vaccines. PMID- 29018254 TI - Genetic variation of Sporothrix globosa isolates from diverse geographic and clinical origins in China. AB - Sporothrix globosa is the main causative agent of sporotrichosis, a common mycosis that usually affects the skin, in China. Despite increasing efforts in the molecular identification of this fungal pathogen, its modes of transmission and epidemiology remain poorly understood. The goals of this study were to assess the genetic diversity of S. globosa using amplified fragment length polymorphism (AFLP) analysis and to assess the correlation of AFLP profiles with the geographic origins, growth rates, clinical forms, and antifungal susceptibilities of S. globosa isolates. AFLP analysis of 225 clinical S. globosa isolates from eight provinces or municipalities in China identified eight distinct clustering groups (I-VIII), with groups I, II and IV being the most common. The AFLP genotypes showed distinct distribution patterns among different regions within Jilin Province and between northern and southern China, but there was no obvious association between the AFLP genotypes and the growth rates, clinical forms or antifungal susceptibilities of the S. globosa isolates. These results expand our understanding of the genetic variation of S. globosa and suggest that AFLP analysis is a potentially useful tool for studying the epidemiology of this fungal pathogen. PMID- 29018255 TI - Shuttling single metal atom into and out of a metal nanoparticle. AB - It has long been a challenge to dope metal nanoparticles with a specific number of heterometal atoms at specific positions. This becomes even more challenging if the heterometal belongs to the same group as the host metal because of the high tendency of forming a distribution of alloy nanoparticles with different numbers of dopants due to the similarities of metals in outmost electron configuration. Herein we report a new strategy for shuttling a single Ag or Cu atom into a centrally hollow, rod-shaped Au24 nanoparticle, forming AgAu24 and CuAu24 nanoparticles in a highly controllable manner. Through a combined approach of experiment and theory, we explain the shuttling pathways of single dopants into and out of the nanoparticles. This study shows that the single dopant is shuttled into the hollow Au24 nanoparticle either through the apex or side entry, while shuttling a metal atom out of the Au25 to form the Au24 nanoparticle occurs mainly through the side entry.Doping a metal nanocluster with heteroatoms dramatically changes its properties, but it remains difficult to dope with single atom control. Here, the authors devise a strategy to dope single atoms of Ag or Cu into hollow Au nanoclusters, creating precise alloy nanoparticles atom-by atom. PMID- 29018256 TI - Sodium chloride effect on the aggregation behaviour of rhamnolipids and their antifungal activity. AB - In this work, the antifungal activity of rhamnolipids produced by Pseudomonas aeruginosa #112 was evaluated against Aspergillus niger MUM 92.13 and Aspergillus carbonarius MUM 05.18. It was demonstrated that the di-rhamnolipid congeners were responsible for the antifungal activity exhibited by the crude rhamnolipid mixture, whereas mono-rhamnolipids showed a weak inhibitory activity. Furthermore, in the presence of NaCl (from 375 mM to 875 mM), the antifungal activity of the crude rhamnolipid mixture and the purified di-rhamnolipids was considerably increased. Dynamic Light Scattering studies showed that the size of the structures formed by the rhamnolipids increased as the NaCl concentration increased, being this effect more pronounced in the case of di-rhamnolipids. These results were confirmed by Confocal Scanning Laser Microscopy, which revealed the formation of giant vesicle-like structures (in the um range) by self assembling of the crude rhamnolipid mixture in the presence of 875 mM NaCl. In the case of the purified mono- and di-rhamnolipids, spherical structures (also in the um range) were observed at the same conditions. The results herein obtained demonstrated a direct relationship between the rhamnolipids antifungal activity and their aggregation behaviour, opening the possibility to improve their biological activities for application in different fields. PMID- 29018253 TI - Usutu virus, Austria and Hungary, 2010-2016. AB - Usutu virus (USUV, Flaviviridae) was first reported in Europe in Austria in 2001, where it caused wild bird (mainly blackbird) mortality until 2005. Since 2006 no further USUV cases were diagnosed in the country. However, the virus emerged in other European countries (Hungary, Italy, Switzerland, Spain, Germany and the Czech Republic) between 2005 and 2011. In 2016, widespread USUV-associated wild bird mortality was observed in Germany, France, Belgium and the Netherlands. In this study, we report the results of passive monitoring for USUV in Austria and Hungary between 2010 and 2016. In Hungary, USUV caused sporadic cases of wild bird mortality between 2010 and 2015 (altogether 18 diagnosed cases), whereas in summer and autumn 2016 the number of cases considerably increased to 12 (ten blackbirds, one Eurasian jay and one starling). In Austria, USUV was identified in two blackbirds in 2016. Phylogenetic analyses of coding-complete genomes and partial regions of the NS5 protein gene revealed that USUVs from Hungary between 2010 and 2015 are closely related to the virus that emerged in Austria in 2001 and in Hungary in 2005, while one Hungarian sequence from 2015 and all sequences from Hungary and Austria from 2016 clustered together with USUV sequences reported from Italy between 2009 and 2010. The results of the study indicate continuous USUV circulation in the region and exchange of USUV strains between Italy, Austria and Hungary.Emerging Microbes &Infections (2017) 6, e85; doi:10.1038/emi.2017.72; published online 11 October 2017. PMID- 29018257 TI - Direct Writing with Tilted-Front Femtosecond Pulses. AB - Shaping light fields in both space and time provides new degrees of freedom to manipulate light-matter interaction on the ultrafast timescale. Through this exploitation of the light field, a greater appreciation of spatio-temporal couplings in focusing has been gained, shedding light on previously unexplored parameters of the femtosecond light pulse, including pulse front tilt and wavefront rotation. Here, we directly investigate the effect of major spatio temporal couplings on light-matter interaction and reveal unambiguously that in transparent media, pulse front tilt gives rise to the directional asymmetry of the ultrafast laser writing. We demonstrate that the laser pulse with a tilted intensity front deposits energy more efficiently when writing along the tilt than when writing against, producing either an isotropic damage-like or a birefringent nanograting structure. The directional asymmetry in the ultrafast laser writing is qualitatively described in terms of the interaction of a void trapped within the focal volume by the gradient force from the tilted intensity front and the thermocapillary force caused by the gradient of temperature. The observed instantaneous transition from the damage-like to nanograting modification after a finite writing length in a transparent dielectric is phenomenologically described in terms of the first-order phase transition. PMID- 29018258 TI - Future soil moisture and temperature extremes imply expanding suitability for rainfed agriculture in temperate drylands. AB - The distribution of rainfed agriculture, which accounts for approximately 3/4 of global croplands, is expected to respond to climate change and human population growth and these responses may be especially pronounced in water limited areas. Because the environmental conditions that support rainfed agriculture are determined by climate, weather, and soil conditions that affect overall and transient water availability, predicting this response has proven difficult, especially in temperate regions that support much of the world's agriculture. Here, we show that suitability to support rainfed agriculture in temperate dryland climates can be effectively represented by just two daily environmental variables: moist soils with warm conditions increase suitability while extreme high temperatures decrease suitability. 21st century projections based on daily ecohydrological modeling of downscaled climate forecasts indicate overall increases in the area suitable for rainfed agriculture in temperate dryland regions, especially at high latitudes. The regional exception to this trend was Europe, where suitability in temperate dryland portions will decline substantially. These results clarify how rising temperatures interact with other key drivers of moisture availability to determine the sustainability of rainfed agriculture and help policymakers, resource managers, and the agriculture industry anticipate shifts in areas suitable for rainfed cultivation. PMID- 29018259 TI - Clinicopathological and molecular characteristics of synchronous gastric adenocarcinoma and gastrointestinal stromal tumors. AB - Synchronous gastric tumors that consist of both gastrointestinal stromal tumor (GIST) and adenocarcinoma are rare. We studied the clinicopathological and molecular characteristics of six cases containing both gastric adenocarcinoma and GIST. By means of immunohistochemical analysis, all GIST cells expressed CD117, CD34 and Dog1 in all six synchronous gastric adenocarcinomas with GIST, and in GIST alone. Sequencing analysis demonstrated that exon 11 c-kit mutations were present in two of six synchronous tumors and four of five GISTs. One of the two exon 11 c-kit mutations in synchronous adenocarcinomas with GISTs was an uncommon mutation of CTT > CCA at amino acid 576, and the other was a GTT deletion at amino acid 560. The mutation was a homozygous A > G mutation in exon 12 (amino acid 567) of PDGFR-alpha. We concluded that the exon 11 mutations were the most important in both cases of synchronous gastric adenocarcinoma with GIST and GIST alone. The mutation rate was higher in GIST alone than in synchronous adenocarcinoma with GIST. PMID- 29018260 TI - Control of chrysanthemum flowering through integration with an aging pathway. AB - Age, as a threshold of floral competence acquisition, prevents precocious flowering when there is insufficient biomass, and ensures flowering independent of environmental conditions; however, the underlying regulatory mechanisms are largely unknown. In this study, silencing the expression of a nuclear factor gene, CmNF-YB8, from the short day plant chrysanthemum (Chrysanthemum morifolium), results in precocious transition from juvenile to adult, as well as early flowering, regardless of day length conditions. The expression of SQUAMOSA PROMOTER BINDING-LIKE (SPL) family members, SPL3, SPL5, and SPL9, is upregulated in CmNF-YB8-RNAi plants, while expression of the microRNA, cmo-MIR156, is downregulated. In addition, CmNF-YB8 is shown to bind to the promoter of the cmo MIR156 gene. Ectopic expression of cmo-miR156, using a virus-based microRNA expression system, restores the early flowering phenotype caused by CmNF-YB8 silencing. These results show that CmNF-YB8 influences flowering time through directly regulating the expression of cmo-MIR156 in the aging pathway.The mechanisms by which plant age regulates flowering remain incompletely understood. Here the authors show that age dependent regulation of SPL transcription factors by miR156 influence flowering via control of NF-YB8 expression in Chrysanthemum. PMID- 29018262 TI - A Cu-atom-chain current channel with a width of approximately 0.246 nm on (5, 0) single-wall carbon nanotube. AB - Continuous miniaturization with improved performance has enabled the development of electronic devices. However, further shrinking of electronic circuits will push feature sizes (linewidths) firmly into the nanoscale. This can cause electronic devices built using current materials (silicon-based) and fabrication processes to not work as expected. Therefore, new materials or preparation technologies are needed for the further miniaturization of electron devices. Here, through theoretical simulation, we show that regular doping of a Cu-atom chain on a single-wall carbon nanotube (SWCNT) can be used to realize an atomic scale current channel (Cu-atom-chain current channel) with a linewidth of approximately 0.246 nm. Moreover, the atomic-scale Cu-atom-chain current channel shows enhanced conductivity (lower power consumption) compared to a pristine SWCNT. Such a Cu-atom-chain current channel with an atomic-scale linewidth and its method of fabrication (regular doping) may be suitable for the preparation of nanoelectronic devices. PMID- 29018263 TI - Phyllomeroterpenoids A-C, Multi-biosynthetic Pathway Derived Meroterpenoids from the TCM Endophytic Fungus Phyllosticta sp. and their Antimicrobial Activities. AB - Phyllomeroterpenoids A-C (1-3), multi-biosynthetic pathway derived meroterpenoids from amino acid/pentose phosphate/terpenoid pathways, were isolated from the TCM endophytic fungus Phyllosticta sp. J13-2-12Y, together with six biosynthetically related compounds (4-9). All structures were determined by extensive spectroscopic analysis, chemical derivatization, and ECD experiments. A plausible biosynthetic pathway of 1-3 was proposed. In addition, the antimicrobial activities of all isolated compounds were evaluated against Staphylococcus aureus 209P (bacterium) and Candida albicans FIM709 (fungus). PMID- 29018261 TI - Alveolar macrophages are critical for broadly-reactive antibody-mediated protection against influenza A virus in mice. AB - The aim of candidate universal influenza vaccines is to provide broad protection against influenza A and B viruses. Studies have demonstrated that broadly reactive antibodies require Fc-Fc gamma receptor interactions for optimal protection; however, the innate effector cells responsible for mediating this protection remain largely unknown. Here, we examine the roles of alveolar macrophages, natural killer cells, and neutrophils in antibody-mediated protection. We demonstrate that alveolar macrophages play a dominant role in conferring protection provided by both broadly neutralizing and non-neutralizing antibodies in mice. Our data also reveal the potential mechanisms by which alveolar macrophages mediate protection in vivo, namely antibody-induced inflammation and antibody-dependent cellular phagocytosis. This study highlights the importance of innate effector cells in establishing a broad-spectrum antiviral state, as well as providing a better understanding of how multiple arms of the immune system cooperate to achieve an optimal antiviral response following influenza virus infection or immunization.Broadly reactive antibodies that recognize influenza A virus HA can be protective, but the mechanism is not completely understood. Here, He et al. show that the inflammatory response and phagocytosis mediated by the interaction between protective antibodies and macrophages are essential for protection. PMID- 29018264 TI - Anthraquinones from the saline-alkali plant endophytic fungus Eurotium rubrum. PMID- 29018265 TI - Ascosteroside D, a new mitochondrial respiration inhibitor discovered by pesticidal screening using insect ADP/ATP carrier protein-expressing Saccharomyces cerevisiae. AB - A new lanostane-type triterpenoid, ascosteroside D, was isolated from a fungus, Aspergillus sp. FKI-6682. It inhibited insect ADP/ATP carrier protein (AAC) expressing Saccharomyces cerevisiae in glycerol-containing medium, but did not inhibit Deltaaac S. cerevisiae in glucose-containing medium. It is hypothesized that ascosteroside D inhibits ATP production in mitochondria.The Journal of Antibiotics advance online publication, 11 October 2017; doi:10.1038/ja.2017.118. PMID- 29018266 TI - Large-scale preparation of key building blocks for the manufacture of fully synthetic macrolide antibiotics. AB - Key building blocks for the production of fully synthetic macrolides have been scaled-up in first time pilot plant and kilo-lab campaigns. These building blocks have supported the discovery of new macrolide antibiotics as well as ongoing preclinical studies. PMID- 29018268 TI - Biological activity of intervenolin analogs with a phenyl substituent. AB - Intervenolin analogs with a phenyl substituent at the 2- or 3-position were synthesized. The compounds (3-11) showed weak or no inhibitory activity toward the growth of MKN-74 gastric adenocarcinoma cells, even in the presence or absence of the corresponding Hs738 stromal cells, whereas 2-substituted analogs exhibited selective anti-Helicobacter pylori activity. Introduction of a pendant side chain on the nitrogen alleviated their acute toxicity in mice. The 2-phenyl substituted analogs are reasonable structural templates for structure-activity relationship studies toward the development of anti-H. pylori agents that do not affect human cells.The Journal of Antibiotics advance online publication, 11 October 2017; doi:10.1038/ja.2017.123. PMID- 29018270 TI - NAFLD: Early promise for ASK1 inhibition in NASH. PMID- 29018267 TI - Current landscape and future prospects of antiviral drugs derived from microbial products. AB - Viral infections are a major global health threat. Over the last 50 years, significant efforts have been devoted to the development of antiviral drugs and great success has been achieved for some viruses. However, other virus infections, such as epidemic influenza, still spread globally and new threats continue to arise from emerging and re-emerging viruses and drug-resistant viruses. In this review, the contributions of microbial products isolated in Institute of Microbial Chemistry for antiviral research are summarized. In addition, the current state of development of antiviral drugs that target influenza virus and hepatitis B virus, and the future prospects for antivirals from natural products are described and discussed.The Journal of Antibiotics advance online publication, 11 October 2017; doi:10.1038/ja.2017.115. PMID- 29018269 TI - ADAR1 polymorphisms are related to severity of liver fibrosis in HIV/HCV coinfected patients. AB - The adenosine deaminase acting on RNA (ADAR1) gene is an interferon-stimulated gene involved in liver injury protection. Our aim was to analyze the association of polymorphisms within this gene with the severity of liver disease in European HIV/HCV-coinfected patients. We performed a cross-sectional study in 220 patients that underwent a liver biopsy. Five SNPs in the ADAR1 gene (rs1127326, rs1127317, rs1127314, rs1127313, rs2229857) were genotyped by GoldenGate assay. The outcome variables were fibrosis stage and necroinflammatory activity grade by METAVIR score, aspartate aminotransferase to platelet ratio index (APRI), FIB-4 index, and fibrosis progression rate (FPR). In multivariate analysis, fibrosis progression rate (FPR) (aAMRs = 0.97) decreased in a dose-dependent manner with the presence of rs2229857_T, rs1127313_G, rs1127314_G and rs1127317_G; while rs1127326_T allele had only significant associations with FIB-4 (aAMRs <= 0.63) and FPR (aAMRs <= 0.97). Moreover, carriers of rs2229857_T, rs1127314_G, rs1127317_G, and rs1127326_T alleles were protected against advanced fibrosis (F >= 3) (adjusted ORs (aORs) <= 0.44), APRI >= 1.5 (aORs <= 0.33), and FPR >= 0.075 (aORs <= 0.45). rs1127313_G carriers showed lower odds of having F >= 3 (aORs = 0.39), FIB4 >= 3.25 (aOR = 0.22) and FPR >= 0.075 (aORs = 0.44). In conclusion, ADAR1 polymorphisms protected against severe liver disease in HIV/HCV-coinfected patients. These results could be used to improve therapeutic decision-making in clinical practice. PMID- 29018273 TI - Pancreatic cancer: Intra-tumour bacteria promote gemcitabine resistance in pancreatic adenocarcinoma. PMID- 29018271 TI - Environmental triggers in IBD: a review of progress and evidence. AB - A number of environmental factors have been associated with the development of IBD. Alteration of the gut microbiota, or dysbiosis, is closely linked to initiation or progression of IBD, but whether dysbiosis is a primary or secondary event is unclear. Nevertheless, early-life events such as birth, breastfeeding and exposure to antibiotics, as well as later childhood events, are considered potential risk factors for IBD. Air pollution, a consequence of the progressive contamination of the environment by countless compounds, is another factor associated with IBD, as particulate matter or other components can alter the host's mucosal defences and trigger immune responses. Hypoxia associated with high altitude is also a factor under investigation as a potential new trigger of IBD flares. A key issue is how to translate environmental factors into mechanisms of IBD, and systems biology is increasingly recognized as a strategic tool to unravel the molecular alterations leading to IBD. Environmental factors add a substantial level of complexity to the understanding of IBD pathogenesis but also promote the fundamental notion that complex diseases such as IBD require complex therapies that go well beyond the current single-agent treatment approach. This Review describes the current conceptualization, evidence, progress and direction surrounding the association of environmental factors with IBD. PMID- 29018275 TI - Gut microbiota: Human faecal sample processing in metagenomic studies: striving for standards. PMID- 29018274 TI - Current and emerging therapeutic targets for IBD. AB - This corrects the article DOI: 10.1038/nrgastro.2016.208. PMID- 29018277 TI - Immunology: Regulatory ILCs help control intestinal inflammation. PMID- 29018276 TI - IBD: Step-up vs top-down therapy for Crohn's disease: medicine vs surgery. PMID- 29018281 TI - Cell death: BCL-2 proteins feed their own expression. PMID- 29018278 TI - Coeliac disease: to biopsy or not? AB - Coeliac disease is increasingly recognized as a global problem in both children and adults. Traditionally, the findings of characteristic changes of villous atrophy and increased intraepithelial lymphocytosis identified in duodenal biopsy samples taken during upper gastrointestinal endoscopy have been required for diagnosis. Although biopsies remain advised as necessary for the diagnosis of coeliac disease in adults, European guidelines for children provide a biopsy sparing diagnostic pathway. This approach has been enabled by the high specificity and sensitivity of serological testing. However, these guidelines are not universally accepted. In this Perspective, we discuss the pros and cons of a biopsy-avoiding pathway for the diagnosis of coeliac disease, especially in this current era of the call for more biopsies, even from the duodenal bulb, in the diagnosis of coeliac disease. In addition, a contrast between paediatric and adult guidelines is presented. PMID- 29018279 TI - Sodium fluorocitrate having protective effect on palmitate-induced beta cell death improves hyperglycemia in diabetic db/db mice. AB - Beta cell loss and insulin resistance play roles in the pathogenesis of type 2 diabetes. Elevated levels of free fatty acids in plasma might contribute to the loss of beta cells. The objective of this study was to find a chemical that could protect against palmitate-induced beta cell death and investigate whether such chemical could improve hyperglycemia in mouse model of type 2 diabetes. Sodium fluorocitrate (SFC), an aconitase inhibitor, was found to be strongly and specifically protective against palmitate-induced INS-1 beta cell death. However, the protective effect of SFC on palmitate-induced cell death was not likely to be due to its inhibitory activity for aconitase since inhibition or knockdown of aconitase failed to protect against palmitate-induced cell death. Since SFC inhibited the uptake of palmitate into INS-1 cells, reduced metabolism of fatty acids was thought to be involved in SFC's protective effect. Ten weeks of treatment with SFC in db/db diabetic mice reduced glucose level but remarkably increased insulin level in the plasma. SFC improved impairment of glucose stimulated insulin release and also reduced the loss of beta cells in db/db mice. Conclusively, SFC possessed protective effect against palmitate-induced lipotoxicity and improved hyperglycemia in mouse model of type 2 diabetes. PMID- 29018272 TI - Bile acid-microbiota crosstalk in gastrointestinal inflammation and carcinogenesis. AB - Emerging evidence points to a strong association between the gut microbiota and the risk, development and progression of gastrointestinal cancers such as colorectal cancer (CRC) and hepatocellular carcinoma (HCC). Bile acids, produced in the liver, are metabolized by enzymes derived from intestinal bacteria and are critically important for maintaining a healthy gut microbiota, balanced lipid and carbohydrate metabolism, insulin sensitivity and innate immunity. Given the complexity of bile acid signalling and the direct biochemical interactions between the gut microbiota and the host, a systems biology perspective is required to understand the liver-bile acid-microbiota axis and its role in gastrointestinal carcinogenesis to reverse the microbiota-mediated alterations in bile acid metabolism that occur in disease states. An examination of recent research progress in this area is urgently needed. In this Review, we discuss the mechanistic links between bile acids and gastrointestinal carcinogenesis in CRC and HCC, which involve two major bile acid-sensing receptors, farnesoid X receptor (FXR) and G protein-coupled bile acid receptor 1 (TGR5). We also highlight the strategies and cutting-edge technologies to target gut-microbiota dependent alterations in bile acid metabolism in the context of cancer therapy. PMID- 29018280 TI - DUSP5 functions as a feedback regulator of TNFalpha-induced ERK1/2 dephosphorylation and inflammatory gene expression in adipocytes. AB - Adipose tissue inflammation is a central pathological element that regulates obesity-mediated insulin resistance and type II diabetes. Evidence demonstrates that extracellular signal-regulated kinase (ERK 1/2) activation (i.e. phosphorylation) links tumor necrosis factor alpha (TNFalpha) to pro-inflammatory gene expression in the nucleus. Dual specificity phosphatases (DUSPs) inactivate ERK 1/2 through dephosphorylation and can thus inhibit inflammatory gene expression. We report that DUSP5, an ERK1/2 phosphatase, was induced in epididymal white adipose tissue (WAT) in response to diet-induced obesity. Moreover, DUSP5 mRNA expression increased during obesity development concomitant to increases in TNFalpha expression. Consistent with in vivo findings, DUSP5 mRNA expression increased in adipocytes in response to TNFalpha, parallel with ERK1/2 dephosphorylation. Genetic loss of DUSP5 exacerbated TNFalpha-mediated ERK 1/2 signaling in 3T3-L1 adipocytes and in adipose tissue of mice. Furthermore, inhibition of ERK 1/2 and c-Jun N terminal kinase (JNK) signaling attenuated TNFalpha-induced DUSP5 expression. These data suggest that DUSP5 functions in the feedback inhibition of ERK1/2 signaling in response to TNFalpha, which resulted in increased inflammatory gene expression. Thus, DUSP5 potentially acts as an endogenous regulator of adipose tissue inflammation; although its role in obesity mediated inflammation and insulin signaling remains unclear. PMID- 29018284 TI - The discovery of catalytic RNA. PMID- 29018282 TI - Emerging roles of linker histones in regulating chromatin structure and function. AB - Together with core histones, which make up the nucleosome, the linker histone (H1) is one of the five main histone protein families present in chromatin in eukaryotic cells. H1 binds to the nucleosome to form the next structural unit of metazoan chromatin, the chromatosome, which may help chromatin to fold into higher-order structures. Despite their important roles in regulating the structure and function of chromatin, linker histones have not been studied as extensively as core histones. Nevertheless, substantial progress has been made recently. The first near-atomic resolution crystal structure of a chromatosome core particle and an 11 A resolution cryo-electron microscopy-derived structure of the 30 nm nucleosome array have been determined, revealing unprecedented details about how linker histones interact with the nucleosome and organize higher-order chromatin structures. Moreover, several new functions of linker histones have been discovered, including their roles in epigenetic regulation and the regulation of DNA replication, DNA repair and genome stability. Studies of the molecular mechanisms of H1 action in these processes suggest a new paradigm for linker histone function beyond its architectural roles in chromatin. PMID- 29018285 TI - The ultrastructure of spinal cord perivascular spaces: Implications for the circulation of cerebrospinal fluid. AB - Perivascular spaces play a pivotal role in the exchange between cerebrospinal and interstitial fluids, and in the clearance of waste in the CNS, yet their precise anatomical components are not well described. The aim of this study was to characterise the ultrastructure of perivascular spaces and their role in the transport of fluid, in the spinal cord of healthy rats, using transmission electron microscopy. The distribution of cerebrospinal fluid tracers injected into the subarachnoid space was studied using light, confocal and electron microscopy. Perivascular spaces were found around arterioles and venules, but not capillaries, throughout the spinal cord white and grey matter. They contained fibroblasts and collagen fibres, and were continuous with the extracellular spaces of the surrounding tissue. At 5 min post injection, tracers were seen in the subarachnoid space, the peripheral white matter, the perivascular spaces, basement membranes, extracellular spaces of the surrounding tissue, and surprisingly, in the lumen of blood vessels, suggesting trans-vascular clearance. These findings point out an unrecognised outflow pathway for CNS fluids, with potential implications for volume regulation in health and disease states, but also clinically for the detection of CNS-derived biomarkers in plasma, the immune response and drug pharmacokinetics. PMID- 29018287 TI - Large piezoelectric strain with ultra-low strain hysteresis in highly c-axis oriented Pb(Zr0.52Ti0.48)O3 films with columnar growth on amorphous glass substrates. AB - Thin films of PbZr0.52Ti0.48O3 (PZT) with largely detached columnar grains, deposited by pulsed laser deposition (PLD) on amorphous glass substrates covered with Ca2Nb3O10 nanosheets as growth template and using LaNiO3 electrode layers, are shown to exhibit very high unipolar piezoelectric strain and ultra-low strain hysteresis. The observed increase of the piezoelectric coefficient with increasing film thickness is attributed to the reduction of clamping, because of the increasingly less dense columnar microstructure (more separation between the grains) with across the film thickness. A very large piezoelectric coefficient (490 pm/V) and a high piezoelectric strain (~0.9%) are obtained in 4-um-thick film under an applied electric field of 200 kV/cm, which is several times larger than in usual PZT ceramics. Further very low strain hysteresis (H~2-4%) is observed in 4 to 5 um thick films. These belong to the best values demonstrated so far in piezoelectric films. Fatigue testing shows that the piezoelectric properties are stable up to 1010 cycles. The growth of high quality PZT films with very large strain and piezoelectric coefficients, very low hysteresis and with long-term stability on a technologically important substrate as glass is of great significance for the development of practical piezo driven microelectromechanical actuator systems. PMID- 29018283 TI - Codon optimality, bias and usage in translation and mRNA decay. AB - The advent of ribosome profiling and other tools to probe mRNA translation has revealed that codon bias - the uneven use of synonymous codons in the transcriptome - serves as a secondary genetic code: a code that guides the efficiency of protein production, the fidelity of translation and the metabolism of mRNAs. Recent advancements in our understanding of mRNA decay have revealed a tight coupling between ribosome dynamics and the stability of mRNA transcripts; this coupling integrates codon bias into the concept of codon optimality, or the effects that specific codons and tRNA concentrations have on the efficiency and fidelity of the translation machinery. In this Review, we first discuss the evidence for codon-dependent effects on translation, beginning with the basic mechanisms through which translation perturbation can affect translation efficiency, protein folding and transcript stability. We then discuss how codon effects are leveraged by the cell to tailor the proteome to maintain homeostasis, execute specific gene expression programmes of growth or differentiation and optimize the efficiency of protein production. PMID- 29018286 TI - Complement Protein C3 Suppresses Axon Growth and Promotes Neuron Loss. AB - The inflammatory response to spinal cord injury (SCI) involves localization and activation of innate and adaptive immune cells and proteins, including the complement cascade. Complement C3 is important for the classical, alternative, and lectin pathways of complement activation, and its cleavage products C3a and C3b mediate several functions in the context of inflammation, but little is known about the potential functions of C3 on regeneration and survival of injured neurons after SCI. We report that 6 weeks after dorsal hemisection with peripheral conditioning lesion, C3-/- mice demonstrated a 2-fold increase in sensory axon regeneration in the spinal cord in comparison to wildtype C3+/+ mice. In vitro, addition of C3 tripled both myelin-mediated neurite outgrowth inhibition and neuron loss versus myelin alone, and ELISA experiments revealed that myelin serine proteases cleave C3 to generate active fragments. Addition of purified C3 cleavage products to cultured neurons suggested that C3b is responsible for the growth inhibitory and neurotoxic or anti-adhesion activities of C3. These data indicate that C3 reduces neurite outgrowth and neuronal viability in vitro and restricts axon regeneration in vivo, and demonstrate a novel, non-traditional role for this inflammatory protein in the central nervous system. PMID- 29018289 TI - Genome-wide open chromatin regions and their effects on the regulation of silk protein genes in Bombyx mori. AB - Nucleosome-depleted open chromatin regions (OCRs) often harbor transcription factor (TF) binding sites that are associated with active DNA regulatory elements. To investigate the regulation of silk-protein genes, DNA molecules isolated from the silk glands of third-day fifth-instar silkworm larvae and embryo-derived (BmE) cells were subjected to formal dehyde-assisted isolation of regulatory elements (FAIRE) and high-throughput sequencing. In total, 68,000 OCRs were identified, and a number of TF-binding motifs were predicted. In particular, OCRs located near silk-protein genes contained potential binding sites for functional TFs. Moreover, many TFs were found to bind to clusters of OCRs upstream of silk-protein genes, and to regulate the expression of these genes. The expression of silk protein genes may be related not only to regulating TFs (such as fkh, Bmdimm, and Bmsage), but also to developmental and hormone-induced TFs (such as zen, eve, Br, and eip74ef). Elucidation of genome-wide OCRs and their regulatory motifs in silk protein genes will provide valuable data and clues for characterizing the mechanisms of transcriptional control of silk protein genes. PMID- 29018288 TI - Macropinocytic entry of isolated mitochondria in epidermal growth factor activated human osteosarcoma cells. AB - Mammalian mitochondria can be transferred between cells both in culture and in vivo. There is evidence that isolated mitochondria enter cells by endocytosis, but the mechanism has not been fully characterised. We investigated the entry mechanism of isolated mitochondria into human osteosarcoma (HOS) cells. Initially we confirmed that respiratory-competent cells can be produced following incubation of HOS cells lacking mitochondrial DNA (mtDNA) with functional exogenous mitochondria and selection in a restrictive medium. Treatment of HOS cells with inhibitors of different endocytic pathways suggest that uptake of EGFP labelled mitochondria occurs via an actin-dependent endocytic pathway which is consistent with macropinocytosis. We later utilised time-lapse microscopy to show that internalised mitochondria were found in large, motile cellular vesicles. Finally, we used confocal imaging to show that EGFP-labelled mitochondria colocalise with a macropinocytic cargo molecule during internalisation, HOS cells produce membrane ruffles interacting with external mitochondria during uptake and EGFP-labelled mitochondria are found within early macropinosomes inside cells. In conclusion our results are consistent with isolated mitochondria being internalised by macropinocytosis in HOS cells. PMID- 29018290 TI - Mass extinctions drove increased global faunal cosmopolitanism on the supercontinent Pangaea. AB - Mass extinctions have profoundly impacted the evolution of life through not only reducing taxonomic diversity but also reshaping ecosystems and biogeographic patterns. In particular, they are considered to have driven increased biogeographic cosmopolitanism, but quantitative tests of this hypothesis are rare and have not explicitly incorporated information on evolutionary relationships. Here we quantify faunal cosmopolitanism using a phylogenetic network approach for 891 terrestrial vertebrate species spanning the late Permian through Early Jurassic. This key interval witnessed the Permian-Triassic and Triassic-Jurassic mass extinctions, the onset of fragmentation of the supercontinent Pangaea, and the origins of dinosaurs and many modern vertebrate groups. Our results recover significant increases in global faunal cosmopolitanism following both mass extinctions, driven mainly by new, widespread taxa, leading to homogenous 'disaster faunas'. Cosmopolitanism subsequently declines in post-recovery communities. These shared patterns in both biotic crises suggest that mass extinctions have predictable influences on animal distribution and may shed light on biodiversity loss in extant ecosystems.Mass extinctions are thought to produce 'disaster faunas', communities dominated by a small number of widespread species. Here, Button et al. develop a phylogenetic network approach to test this hypothesis and find that mass extinctions did increase faunal cosmopolitanism across Pangaea during the late Palaeozoic and early Mesozoic. PMID- 29018291 TI - Multiple Geographical Origins of Environmental Sex Determination enhanced the diversification of Darwin's Favourite Orchids. AB - Environmental sex determination (ESD) - a change in sexual function during an individual life span driven by environmental cues - is an exceedingly rare sexual system among angiosperms. Because ESD can directly affect reproduction success, it could influence diversification rate as compared with lineages that have alternative reproductive systems. Here we test this hypothesis using a solid phylogenetic framework of Neotropical Catasetinae, the angiosperm lineage richest in taxa with ESD. We assess whether gains of ESD are associated with higher diversification rates compared to lineages with alternative systems while considering additional traits known to positively affect diversification rates in orchids. We found that ESD has evolved asynchronously three times during the last ~5 Myr. Lineages with ESD have consistently higher diversification rates than related lineages with other sexual systems. Habitat fragmentation due to mega wetlands extinction, and climate instability are suggested as the driving forces for ESD evolution. PMID- 29018293 TI - Off-Label Drug Bills Back on Track: But Democrats Could Run at Least One Off the Rails. AB - Off-label drug bills are back on track but could run off the rails. PMID- 29018295 TI - Drug and Device News. AB - Approvals, new indications, regulatory activities, and more. PMID- 29018294 TI - Misidentification of Alphanumeric Symbols Plays a Role in Errors. AB - Misidentification of alphanumeric symbols plays a role in errors. PMID- 29018296 TI - Pharmaceutical Approval Update. AB - L-glutamine oral powder (Endari) for reducing the acute complications of sickle cell disease; edaravone (Radicava) for the treatment of amyotrophic lateral sclerosis; and midostaurin (Rydapt) for the treatment of acute myeloid leukemia in combination with chemotherapy. PMID- 29018292 TI - The loss of P2X7 receptor expression leads to increase intestinal glucose transit and hepatic steatosis. AB - In intestinal epithelial cells (IEC), it was reported that the activation of the P2X7 receptor leads to the internalization of the glucose transporter GLUT2, which is accompanied by a reduction of IEC capacity to transport glucose. In this study, we used P2rx7 -/- mice to decipher P2X7 functions in intestinal glucose transport and to evaluate the impacts on metabolism. Immunohistochemistry analyses revealed the presence of GLUT2 at the apical domain of P2rx7 -/- jejunum enterocytes. Positron emission tomography and biodistribution studies demonstrated that glucose was more efficiently delivered to the circulation of knockout animals. These findings correlated with increase blood glucose, insulin, triglycerides and cholesterol levels. In fact, P2rx7 -/- mice had increased serum triglyceride and cholesterol levels and displayed glucose intolerance and resistance to insulin. Finally, P2rx7 -/- mice developed a hepatic steatosis characterized by a reduction of Acaca, Acacb, Fasn and Acox1 mRNA expression, as well as for ACC and FAS protein expression. Our study suggests that P2X7 could play a central role in metabolic diseases. PMID- 29018297 TI - Xadago (Safinamide): A Monoamine Oxidase B Inhibitor for the Adjunct Treatment of Motor Symptoms in Parkinson's Disease. AB - Xadago (safinamide), a monoamine oxidase B inhibitor for the adjunct treatment of motor symptoms in Parkinson's disease. PMID- 29018298 TI - More Clouds Form Over 340B Program: Potential Medicare Cut Underlines Need to Rein In Program. AB - In an effort to control costs, the Centers for Medicare and Medicaid Services wants to exact a severe reduction in reimbursement to hospitals that participate in the 340B Drug Pricing Program. The author discusses the program's shortcomings, the actions taken to address them, and how participating hospitals might be affected by the cut. PMID- 29018299 TI - Provision of Medication Therapy Management by Pharmacists to Patients With Type-2 Diabetes Mellitus in a Federally Qualified Health Center. AB - BACKGROUND: Type-2 diabetes mellitus is a complex condition for which pharmacists are well suited to improve patient outcomes by delivering medication therapy management (MTM) services. When diabetes is well controlled, patients can avoid its long-term complications, such as cardiovascular and renal diseases. This article describes an MTM pilot program that was implemented at a federally qualified health center (FQHC). METHODS: This program was implemented at three clinics involving patients with uncontrolled diabetes, defined as hemoglobin A1c (HbA1c) greater than 8%. The primary endpoint assessed was HbA1c. Secondary endpoints included knowledge scores, medication adherence, and patient satisfaction. Outcomes were compared with a group of patients from the same clinics who did not receive MTM. RESULTS: Fifty-seven patients met the established criteria and were enrolled in the six-month program. Thirty-seven patients completed the program and had an average 15% reduction in HbA1c (P < 0.05). Their average knowledge scores and medication adherence scores also increased from baseline. CONCLUSION: MTM provided by pharmacists as part of a health care team at an FQHC led to significant reductions in HbA1c. PMID- 29018300 TI - Vaxchora: The First FDA-Approved Cholera Vaccination in the United States. AB - Vaxchora is the first vaccine approved by the Food and Drug Administration for the prophylaxis of cholera infection. Cholera, a potentially life-threatening bacterial infection that occurs in the intestines and causes severe diarrhea and dehydration, has a low incidence in the U.S., but a high incidence in Africa, Southeast Asia, and other locations around the world. These areas draw travelers from the U.S., so cholera can present in patients who return from visits to these regions. Previous means of prophylaxis included the use of doxycycline for the prevention of traveler's diarrhea, but doxycycline is not specific for cholera. With the approval of Vaxchora, a live attenuated, single-dose, oral suspension vaccine, travelers can now visit these areas with less chance of contracting the bacterium Vibrio cholerae, which causes cholera infections. PMID- 29018301 TI - A P&T Committee's Transition to a Complete Electronic Meeting System-A Multisite Institution Experience. AB - PURPOSE: In the last few decades, changes to formulary management processes have taken place in institutions with closed formulary systems. However, many P&T committees continued to operate using traditional paper-based systems. Paper based systems have many limitations, including confidentiality, efficiency, open voting, and paper wastage. This becomes more challenging when dealing with a multisite P&T committee that handles formulary matters across the whole health care system. In this paper, we discuss the implementation of the first paperless, completely electronic, Web-based formulary management system across a large health care system in the Middle East. SUMMARY: We describe the transitioning of a multisite P&T committee in a large tertiary care institution from a paper-based to an all-electronic system. The challenges and limitations of running a multisite P&T committee utilizing a paper system are discussed. The design and development of a Web-based committee floor management application that can be used from notebooks, tablets, and hand-held devices is described. Implementation of a flexible, interactive, easy-to-use, and efficient electronic formulary management system is explained in detail. CONCLUSION: The development of an electronic P&T committee meeting system that encompasses electronic document sharing, voting, and communication could help multisite health care systems unify their formularies across multiple sites. Our experience might not be generalizable to all institutions because this depends heavily on system features, existing processes and workflow, and implementation across different sites. PMID- 29018303 TI - Research Briefs. PMID- 29018302 TI - Promising HIV Treatments in Late-Stage Clinical Development. AB - Analysts have identified several unmet needs in the HIV therapy marketplace. We present the promising candidates in late-stage clinical development or FDA review. PMID- 29018304 TI - The new Greiner FC-Mix tubes equal the old Terumo ones and are useful as glucose stabilizer after prolonged storage of samples. AB - INTRODUCTION: The aim of our study is to compare new Greiner tubes containing granulated citrate buffer with the Terumo ones and to verify if they are suitable for glucose stabilization after prolonged storage. MATERIALS AND METHODS: In Study 1, blood was collected in two Terumo and two Greiner tubes from 40 healthy volunteers. Samples were stored at room temperature (RT) for 1 and 2 hours, respectively. Comparison was made by Deming regression. In Study 2, glucose was measured in a reference tube (N = 50), according to the ADA-NACB guidelines and in aliquots of Greiner samples maintained un-centrifuged at RT for 1, 2, 4 (N = 50) and 24, 48, 72 hours (N = 35). RESULTS: There were insignificant mixed biases between the Terumo and Greiner tubes. Compared to reference (5.3 mmol/L), glucose concentration in the new tubes was 5.4 (P < 0.05), 5.4 (P < 0.05), 5.3 (P = 0.265), 5.2 (P = 0.156), 5.3 (P < 0.05) and 5.2 (P < 0.05) mmol/L after 1, 2, 4, 24, 48 and 72 hours at RT, respectively. There was no biological difference between any of the time points up to 48 h (bias < +/- 1.95%). CONCLUSIONS: The study shows that the new tubes perform equally well as the Terumo ones and ensure glucose stabilization up to 48 h as well as permit to create a link between the previous studies demonstrating the clinical utility of granulated citrate buffer and the future ones. PMID- 29018306 TI - Solid Phase Deracemization of an Atropisomer. AB - The scope of Viedma ripening and temperature cycling with respect to chiral molecules has remained mostly limited to molecules with a single stereogenic center, while racemization proceeds through inversion at that particular stereocenter. In this article we demonstrate for the first time that atropisomers, chiral rotamers that possess an axis of chirality, can be successfully deracemized in the solid phase by either applying temperature cycling or Viedma ripening. PMID- 29018305 TI - Unraveling Complexity in the Solid Form Screening of a Pharmaceutical Salt: Why so Many Forms? Why so Few? AB - The solid form landscape of 5-HT2a antagonist 3-(4-(benzo[d]isoxazole-3 yl)piperazin-1-yl)-2,2-dimethylpropanoic acid hydrochloride (B5HCl) proved difficult to establish. Many crystalline materials were produced by solid form screening, but few forms readily grew high quality crystals to afford a clear picture or understanding of the solid form landscape. Careful control of crystallization conditions, a range of experimental methods, computational modeling of solvate structures, and crystal structure prediction were required to see potential arrangements of the salt in its crystal forms. Structural diversity in the solid form landscape of B5HCl was apparent in the layer structures for the anhydrate polymorphs (Forms I and II), dihydrate and a family of solvates with alcohols. The alcohol solvates, which provided a distinct packing from the neat forms and the dihydrate, form layers with conserved hydrogen bonding between B5HCl and the solvent, as well as stacking of the aromatic rings. The ability of the alcohol hydrocarbon moieties to efficiently pack between the layers accounted for the difficulty in growing some solvate crystals and the inability of other solvates to crystallize altogether. Through a combination of experiment and computation, the crystallization problems, form stability, and desolvation pathways of B5HCl have been rationalized at a molecular level. PMID- 29018307 TI - Management of Citrus Canker in Argentina, a Success Story. AB - Citrus canker is an important bacterial disease of citrus in several regions of the world. Strains of Xanthomonas citri type-A (Xc-A) group are the primary pathogen where citrus canker occurs. After Xc-A entered the Northeast of Argentina in 1974, the disease spread rapidly from 1977 to 1980 and then slowed down and remained moving at slow pace until 1990 when it became endemic. Citrus canker was detected in Northwest Argentina in 2002. This paper presents the main steps in the fight of the disease and the management strategies that have been used to control citrus canker at this time. We think the process might be usefull to other countries with the same situation. Results from more than 40 years of research in Northeast (NE) Argentina indicate that we are at the limit of favorable environment for the disease. The severity of citrus canker is greatly affected by the environment and El Nino Southern Oscillation (ENSO) phenomenon which causes cyclic fluctuations on the disease intensity in the NE region. Weather-based logistic regression models adjusted to quantify disease levels in field conditions showed that the environmental effect was strongly modulated by the distance from a windbreak. Production of healthy fruits in citrus canker endemic areas is possible knowing the dynamics of the disease. A voluntary Integrated Plan to Reduce the Risk of Canker has been in place since 1994 and it allows growers to export unsymptomatic, uninfested fresh fruit to countries which are free of the disease and require healthy, pathogen free fruits. The experience from Argentina can be replicated in other countries after appropriate trials. PMID- 29018308 TI - Epidemiological Characteristics of Scab of Japanese Apricot in Korea. AB - Scabs caused by Venturia carpophila greatly reduce the quality of the fruits of the Japanese apricot (Prunus mume) when the disease is not properly managed. The disease produces a superficial blemish that is unlikely to affect the overall yield of processed fruit, but reduce the value of fruit intended for the fresh market. Incidence rates of scab at sprayed and unsprayed orchards range from 0% to 21.5% and from 30.2% to 100%, respectively, in the major cultivation regions of Jeonnam Province during the growing season of 2009. The trends in disease progress were quite similar, regardless of regions, and cultivar Namgo was relatively less damaged by scab compared to cultivar Cheonmae among the tested Japanese apricot cultivars. The fruits on branches 1.5 m above the infected Japanese apricot trees and the stem-end parts of the infected fruits were more severely damaged by scabs, possibly because of rain and run-off facilitate dissemination of conidia of V. carpophila and subsequent infection of the fruits or branches. The conidia of V. carpophila were dispersed from March 24 to April 26 in 2010, and more conidia were dispersed from 2-year-old branches than 1-year old branches. Since the control efficacies were higher than 90% after more than two applications of Trifloxystrobin WG at 10-day-intervals from mid April, it is that effective fungicides be applied at least two times at 10-day-intervals from the middle of April to manage scabs of Japanese apricot in orchards. PMID- 29018309 TI - Global Transcriptome Profiling of Xanthomonas oryzae pv. oryzae under in planta Growth and in vitro Culture Conditions. AB - Xanthomonas oryzae pv. oryzae (Xoo), the causative agent of bacterial blight, is a major threat to rice productivity. Here, we performed RNA-Seq based transcriptomic analysis of Xoo transcripts isolated under in planta growth (on both susceptible and resistant hosts) and in vitro culture conditions. Our in planta extraction method resulted in successful enrichment of Xoo cells and provided RNA samples of high quality. A total of 4,619 differentially expressed genes were identified between in planta and in vitro growth conditions. The majority of the differentially expressed genes identified under in planta growth conditions were related to the nutrient transport, protease activity, stress tolerance, and pathogenicity. Among them, over 1,300 differentially expressed genes were determined to be secretory, including 184 putative type III effectors that may be involved in Xoo pathogenicity. Expression pattern of some of these identified genes were further validated by semi-quantitative RT-PCR. Taken together, these results provide a transcriptome overview of Xoo under in planta and in vitro growth conditions with a focus on its pathogenic processes, deepening our understanding of the behavior and pathogenicity of Xoo. PMID- 29018310 TI - Virus Incidence of Sweet Potato in Korea from 2011 to 2014. AB - A nationwide survey was performed to investigate the current incidence of viral diseases in Korean sweet potatoes for germplasm and growing fields from 2011 to 2014. A total of 83.8% of the germplasm in Korea was infected with viruses in 2011. Commercial cultivars that were used to supply growing fields were infected at a rate of 62.1% in 2012. Among surveyed viruses, the incidence of five Potyvirus species that infect sweet potato decreased between 2012 and 2013, and then increased again in 2014. Representatively, the incidence of Sweet potato feathery mottle virus (SPFMV) was 87.0% in 2012, 20.7% in 2013 and then increased to 35.3% in 2014. Unlike RNA viruses, DNA viruses were shown to decrease continuously. The incidence of Sweet potato leaf curl virus (SPLCV) was 5.5% in 2003, 59.5% in 2011, and 47.4% in 2012. It then decreased continuously year by year to 33.2% in 2013, and then 25.6% in 2014. While the infection rate of each virus species showed a tendency to decline, the virus infection status was more variable in 2013 and 2014. Nevertheless, the high rate of single infections and mixed infection combinations were more variable than the survey results from 2012. As shown in the results from 2013, the most prevalent virus infection was a single infection at 27.6%, with the highest rate of infection belonging to sweet potato symptomless virus-1 (SPSMV-1) (12.9%). Compared to 2013, infection combinations were more varied in 2014, with a total of 122 kinds of mixed infection. PMID- 29018311 TI - De novo Genome Assembly and Single Nucleotide Variations for Soybean Mosaic Virus Using Soybean Seed Transcriptome Data. AB - Soybean is the most important legume crop in the world. Several diseases in soybean lead to serious yield losses in major soybean-producing countries. Moreover, soybean can be infected by diverse viruses. Recently, we carried out a large-scale screening to identify viruses infecting soybean using available soybean transcriptome data. Of the screened transcriptomes, a soybean transcriptome for soybean seed development analysis contains several virus associated sequences. In this study, we identified five viruses, including soybean mosaic virus (SMV), infecting soybean by de novo transcriptome assembly followed by blast search. We assembled a nearly complete consensus genome sequence of SMV China using transcriptome data. Based on phylogenetic analysis, the consensus genome sequence of SMV China was closely related to SMV isolates from South Korea. We examined single nucleotide variations (SNVs) for SMVs in the soybean seed transcriptome revealing 780 SNVs, which were evenly distributed on the SMV genome. Four SNVs, C-U, U-C, A-G, and G-A, were frequently identified. This result demonstrated the quasispecies variation of the SMV genome. Taken together, this study carried out bioinformatics analyses to identify viruses using soybean transcriptome data. In addition, we demonstrated the application of soybean transcriptome data for virus genome assembly and SNV analysis. PMID- 29018312 TI - Diffusible and Volatile Antifungal Compounds Produced by an Antagonistic Bacillus velezensis G341 against Various Phytopathogenic Fungi. AB - The aim of this study was to identify volatile and agar-diffusible antifungal metabolites produced by Bacillus sp. G341 with strong antifungal activity against various phytopathogenic fungi. Strain G341 isolated from four-year-old roots of Korean ginseng with rot symptoms was identified as Bacillus velezensis based on 16S rDNA and gyrA sequences. Strain G341 inhibited mycelial growth of all phytopathogenic fungi tested. In vivo experiment results revealed that n-butanol extract of fermentation broth effectively controlled the development of rice sheath blight, tomato gray mold, tomato late blight, wheat leaf rust, barley powdery mildew, and red pepper anthracnose. Two antifungal compounds were isolated from strain G341 and identified as bacillomycin L and fengycin A by MS/MS analysis. Moreover, volatile compounds emitted from strain G341 were found to be able to inhibit mycelial growth of various phytopathogenic fungi. Based on volatile compound profiles of strain G341 obtained through headspace collection and analysis on GC-MS, dimethylsulfoxide, 1-butanol, and 3-hydroxy-2-butanone (acetoin) were identified. Taken together, these results suggest that B. valezensis G341 can be used as a biocontrol agent for various plant diseases caused by phytopathogenic fungi. PMID- 29018314 TI - Experimental Infection of Different Tomato Genotypes with Tomato mosaic virus Led to a Low Viral Population Heterogeneity in the Capsid Protein Encoding Region. AB - The complete genome sequence of a Slovak SL-1 isolate of Tomato mosaic virus (ToMV) was determined from the next generation sequencing (NGS) data, further confirming a limited sequence divergence in this tobamovirus species. Tomato genotypes Monalbo, Mobaci and Moperou, respectively carrying the susceptible tm-2 allele or the Tm-1 and Tm-2 resistant alleles, were tested for their susceptibility to ToMV SL-1. Although the three tomato genotypes accumulated ToMV SL-1 to similar amounts as judged by semi-quantitative DAS-ELISA, they showed variations in the rate of infection and symptomatology. Possible differences in the intra-isolate variability and polymorphism between viral populations propagating in these tomato genotypes were evaluated by analysis of the capsid protein (CP) encoding region. Irrespective of genotype infected, the intra isolate haplotype structure showed the presence of the same highly dominant CP sequence and the low level of population diversity (0.08-0.19%). Our results suggest that ToMV CP encoding sequence is relatively stable in the viral population during its replication in vivo and provides further demonstration that RNA viruses may show high sequence stability, probably as a result of purifying selection. PMID- 29018313 TI - Characterization of Bacillus amyloliquefaciens DA12 Showing Potent Antifungal Activity against Mycotoxigenic Fusarium Species. AB - In an attempt to develop a biological control agent against mycotoxigenic Fusarium species, we isolated Bacillus amyloliquefaciens strain DA12 from soil and explored its antimicrobial activities. DA12 was active against the growth of mycotoxigenic F. asiaticum, F. graminearum, F. proliferatum, and F. verticillioides both in vitro and in planta (maize). Further screening using dual culture extended the activity range of strain DA12 against other fungal pathogens including Botrytis cinerea, Colletotrichum coccodes, Endothia parasitica, Fusarium oxysporum, Raffaelea quercus-mongolicae, and Rhizoctonia solani. The butanol extract of the culture filtrate of B. amyloliquefaciens DA12 highly inhibited the germination of F. graminearum macroconidia with inhibition rate 83% at a concentration of 31.3 MUg/ml and 100% at a concentration of 250 MUg/ml. The antifungal metabolite from the butanol extract was identified as iturin A by thin layer chromatography-bioautography. In addition, volatile organic compounds produced by DA12 were able to inhibit mycelial growth of various phytopathogenic fungi. The volatile compounds were identified as 2-heptanone, 5-methyl heptanone and 6-methyl heptanone by gas chromatography-mass spectrometry (GC-MS) analysis. These results indicate that the antagonistic activity of Bacillus amyloliquefaciens DA12 was attributable to iturin A and volatile heptanones, and the strain could be used as a biocontrol agent to reduce the development of Fusarium diseases and mycotoxin contamination of crops. PMID- 29018315 TI - Characterization of a Begomovirus-Betasatellite Complex, Producing Defective Molecules in Spinach (Spinacia oleracea L.), a New Host for Begomovirus and Betasatellite Complex in Pakistan. AB - Spinach is a vegetable crop which is widely grown over a large area especially in Punjab province of Pakistan. Leaf curling and enations on spinach plant collected shown to be associated with the begomovirus Pedilanthus leaf curl virus (PeLCV) and Shahdadpur strain of Cotton leaf curl Multan betasatellite (CLCuMBSha). Defective molecules of half and quarter size derived from monopartite begomoviruses are usually generated by the deletion of virion-sense sequences. Characterization of defective molecules of PeLCV from spinach revealed that the molecules of half the size are derived from the deletion of complementary-sense genes while quarter size molecule appears to have evolved by further deletion. This is the first report of the begomovirus-betasatellite complex on spinach and unusual defective molecules derived from deletion of complementary-sense genes in Pakistan. PMID- 29018316 TI - Temperature and CO2 Level Influence Potato leafroll virus Infection in Solanum tuberosum. AB - We determined the effects of atmospheric temperature (10-30 +/- 2 degrees C in 5 degrees C increments) and carbon dioxide (CO2) levels (400 +/- 50 ppm, 540 +/- 50 ppm, and 940 +/- 50 ppm) on the infection of Solanum tuberosum cv. Chubaek by Potato leafroll virus (PLRV). Below CO2 levels of 400 +/- 50 ppm, the PLRV infection rate and RNA content in plant tissues increased as the temperature increased to 20 +/- 2 degrees C, but declined at higher temperatures. At high CO2 levels (940 +/- 50 ppm), more plants were infected by PLRV at 30 +/- 2 degrees C than at 20 or 25 +/- 2 degrees C, whereas PLRV RNA content was unchanged in the 20-30 +/- 2 degrees C temperature range. The effects of atmospheric CO2 concentration on the acquisition of PLRV by Myzus persicae and accumulation of PLRV RNA in plant tissues were investigated using a growth chamber at 20 +/- 2 degrees C. The M. persicae PLRV RNA content slightly increased at elevated CO2 levels (940 +/- 50 ppm), but this increase was not statistically significant. Transmission rates of PLRV by Physalis floridana increased as CO2 concentration increased. More PLRV RNA accumulated in potato plants maintained at 540 or 940 +/ 50 ppm CO2, than in plants maintained at 400 +/- 50 ppm. This is the first evidence of greater PLRV RNA accumulation and larger numbers of S. tuberosum plants infected by PLRV under conditions of combined high CO2 levels (940 +/- 50 ppm) and high temperature (30 +/- 2 degrees C). PMID- 29018317 TI - JAKE(r) Multimodal Data Capture System: Insights from an Observational Study of Autism Spectrum Disorder. AB - Objective: To test usability and optimize the Janssen Autism Knowledge Engine (JAKE(r)) system's components, biosensors, and procedures used for objective measurement of core and associated symptoms of autism spectrum disorder (ASD) in clinical trials. Methods: A prospective, observational study of 29 children and adolescents with ASD using the JAKE system was conducted at three sites in the United States. This study was designed to establish the feasibility of the JAKE system and to learn practical aspects of its implementation. In addition to information collected by web and mobile components, wearable biosensor data were collected both continuously in natural settings and periodically during a battery of experimental tasks administered in laboratory settings. This study is registered at clinicaltrials.gov, NCT02299700. Results: Feedback collected throughout the study allowed future refinements to be planned for all components of the system. The Autism Behavior Inventory (ABI), a parent-reported measure of ASD core and associated symptoms, performed well. Among biosensors studied, the eye-tracker, sleep monitor, and electrocardiogram were shown to capture high quality data, whereas wireless electroencephalography was difficult to use due to its form factor. On an exit survey, the majority of parents rated their overall reaction to JAKE as positive/very positive. No significant device-related events were reported in the study. Conclusion: The results of this study, with the described changes, demonstrate that the JAKE system is a viable, useful, and safe platform for use in clinical trials of ASD, justifying larger validation and deployment studies of the optimized system. PMID- 29018318 TI - Electrophysiological Correlates of Change Detection during Delayed Matching Task: A Comparison of Different References. AB - Detecting the changed information between memory representation and incoming sensory inputs is a fundamental cognitive ability. By offering the promise of excellent temporal resolution, event-related potential (ERP) technique has served as a primary tool for studying this process with reference of the linked mastoid (LM). However, given that LM may distort the ERP signals, it is still undetermined whether LM is the best reference choice. The goal of the current study was to systematically compare LM, reference electrode standardization technique (REST) and average reference (AR) for assessing the ERP correlates of change detection during a delayed matching task. Colored shapes were adopted as materials while both the task-relevant shape feature and -irrelevant color feature could be changed. The results of the ERP amplitude showed that both of the task-relevant and -conjunction feature changes elicited significantly more positive posterior P2 in REST and AR, but not in LM. Besides, significantly increased N270 was observed in task-relevant and -conjunction feature changes in both the REST and LM, but in the conjunction feature change in AR. Only the REST obtained N270 revealed a significant increment in task-irrelevant feature change, which was compatible with the delayed behavioral performance. Statistical parametric scalp mapping (SPSM) results showed a left posterior distribution for AR, an anterior distribution for LM, and both the anterior and left posterior distributions for REST. These results indicate that different types of references may provide distinct cognitive interpretations. Interestingly, only the SPSM of REST was consistent with previous fMRI findings. Combined with the evidence of simulation studies and the current observations, we take the REST-based results as the objective one, and recommend using REST technology in the future ERP data analysis. PMID- 29018319 TI - On the Value of Estimating Human Arm Stiffness during Virtual Teleoperation with Robotic Manipulators. AB - Teleoperated robotic systems are widely spreading in multiple different fields, from hazardous environments exploration to surgery. In teleoperation, users directly manipulate a master device to achieve task execution at the slave robot side; this interaction is fundamental to guarantee both system stability and task execution performance. In this work, we propose a non-disruptive method to study the arm endpoint stiffness. We evaluate how users exploit the kinetic redundancy of the arm to achieve stability and precision during the execution of different tasks with different master devices. Four users were asked to perform two planar trajectories following virtual tasks using both a serial and a parallel link master device. Users' arm kinematics and muscular activation were acquired and combined with a user-specific musculoskeletal model to estimate the joint stiffness. Using the arm kinematic Jacobian, the arm end-point stiffness was derived. The proposed non-disruptive method is capable of estimating the arm endpoint stiffness during the execution of virtual teleoperated tasks. The obtained results are in accordance with the existing literature in human motor control and show, throughout the tested trajectory, a modulation of the arm endpoint stiffness that is affected by task characteristics and hand speed and acceleration. PMID- 29018320 TI - Virtual Balancing for Studying and Training Postural Control. AB - Postural control during free stance has been frequently interpreted in terms of balancing an inverted pendulum. This even holds, if subjects do not balance their own, but an external body weight. We introduce here a virtual balancing apparatus, which produces torque in the ankle joint as a function of ankle angle resembling the gravity and inertial effects of free standing. As a first aim of this study, we systematically modified gravity, damping, and inertia to examine its effect on postural control beyond the physical constraints given in the real world. As a second aim, we compared virtual balancing to free stance to test its suitability for balance training in patients who are not able to balance their full body weight due to certain medical conditions. In a feasibility study, we analyzed postural control during free stance and virtual balancing in 15 healthy subjects. Postural control was characterized by spontaneous sway measures and measures of perturbed stance. During free stance, perturbations were induced by pseudorandom anterior-posterior tilts of the body support surface. In the virtual balancing task, we systematically varied the anterior-posterior position of the foot plate where the balancing forces are zero following a similar pseudorandom stimulus profile. We found that subjects' behavior during virtual balancing resembles free stance on a tilting platform. This specifically holds for the profile of body excursions as a function of stimulus frequencies. Moreover, non linearity between stimulus and response amplitude is similar in free and virtual balancing. The overall larger stimulus induced body excursions together with an altered phase behavior between stimulus and response could be in part explained by the limited use of vestibular and visual feedback in our experimental setting. Varying gravity or damping significantly affected postural behavior. Inertia as an isolated factor had a mild effect on the response functions. We conclude that virtual balancing may be well suited to simulate conditions which could otherwise only be realized in space experiments or during parabolic flights. Further studies are needed to examine patients' potential benefit of virtual balance training. PMID- 29018322 TI - Editorial: Advanced Neuroimaging Methods for Studying Autism Disorder. PMID- 29018321 TI - Lateralization of Executive Function: Working Memory Advantage for Same Hemifield Stimuli in the Monkey. AB - Working memory capacity, the amount of information that may be maintained in mind over a period of seconds, is extremely limited, to a handful of items. Some evidence exists that the number of visual items that may be maintained in working memory is independent for the two hemifields. To test this idea, we trained monkeys to perform visual working memory tasks that required maintenance in memory of the locations and/or shapes of 3-5 visual stimuli. We then tested whether systematic performance differences were present for stimuli concentrated in the same hemifield, vs. distributed across hemifields. We found little evidence to support the expectation that working memory capacity is independent in the two hemifields. Instead, when an advantage of stimulus arrangement was present, it involved multiple stimuli presented in the same hemifield. This conclusion was consistent across variations of the task, performance levels, and apparent strategies adopted by individual subjects. This result suggests that factors such as grouping that favor processing of stimuli in relative proximity may counteract the benefits of independent processing in the two hemispheres. Our results reveal an important property of working memory and place constraints on models of working memory capacity. PMID- 29018323 TI - Cerebrospinal Fluid Amino Acid Profiling of Pediatric Cases with Tuberculous Meningitis. AB - Background: In Africa, tuberculosis is generally regarded as persisting as one of the most devastating infectious diseases. The pediatric population is particularly vulnerable, with infection of the brain in the form of tuberculous meningitis (TBM) being the most severe manifestation. TBM is often difficult to diagnose in its early stages because of its non-specific clinical presentation. Of particular concern is that late diagnosis, and subsequent delayed treatment, leads to high risk of long-term neurological sequelae, and even death. Using advanced technology and scientific expertise, we are intent on further describing the biochemistry behind this devastating neuroinflammatory disease, with the goal of improving upon its early diagnosis. Method: We used the highly sensitive analytical platform of gas chromatography-mass spectrometry (GC-MS) to analyze amino acid profiles of cerebrospinal fluid (CSF) collected from a cohort of 33 South African pediatric TBM cases, compared to 34 controls. Results: Through the use of a stringent quality assurance procedure and various statistical techniques, we were able to confidently identify five amino acids as being significantly elevated in TBM cases, namely, alanine, asparagine, glycine, lysine, and proline. We found also in an earlier untargeted metabolomics investigation that alanine can be attributed to increased CSF lactate levels, and lysine as a marker of lipid peroxidation. Alanine, like glycine, is an inhibitory neurotransmitter in the brain. Asparagine, as with proline, is linked to the glutamate-glutamine cycle. Asparagine is associated with the removal of increased nitrites in the brain, whereas elevated proline coincides with the classic biochemical marker of increased CSF protein in TBM. All five discriminatory amino acids are linked to ammonia due to increased nitrites in TBM. Conclusion: A large amount of untapped biochemical information is present in CSF of TBM cases, of which amino acid profiling through GC-MS has potential in aiding in earlier diagnosis, and hence crucial earlier treatment. PMID- 29018325 TI - Hearing Loss Controlled by Optogenetic Stimulation of Nonexcitable Nonglial Cells in the Cochlea of the Inner Ear. AB - Light-gated ion channels and transporters have been applied to a broad array of excitable cells including neurons, cardiac myocytes, skeletal muscle cells and pancreatic beta-cells in an organism to clarify their physiological and pathological roles. Nonetheless, among nonexcitable cells, only glial cells have been studied in vivo by this approach. Here, by optogenetic stimulation of a different nonexcitable cell type in the cochlea of the inner ear, we induce and control hearing loss. To our knowledge, deafness animal models using optogenetics have not yet been established. Analysis of transgenic mice expressing channelrhodopsin-2 (ChR2) induced by an oligodendrocyte-specific promoter identified this channel in nonglial cells-melanocytes-of an epithelial-like tissue in the cochlea. The membrane potential of these cells underlies a highly positive potential in a K+-rich extracellular solution, endolymph; this electrical property is essential for hearing. Illumination of the cochlea to activate ChR2 and depolarize the melanocytes significantly impaired hearing within a few minutes, accompanied by a reduction in the endolymphatic potential. After cessation of the illumination, the hearing thresholds and potential returned to baseline during several minutes. These responses were replicable multiple times. ChR2 was also expressed in cochlear glial cells surrounding the neuronal components, but slight neural activation caused by the optical stimulation was unlikely to be involved in the hearing impairment. The acute onset, reversible and repeatable phenotype, which is inaccessible to conventional gene-targeting and pharmacological approaches, seems to at least partially resemble the symptom in a population of patients with sensorineural hearing loss. Taken together, this mouse line may not only broaden applications of optogenetics but also contribute to the progress of translational research on deafness. PMID- 29018324 TI - Design and Characterization of a Human Monoclonal Antibody that Modulates Mutant Connexin 26 Hemichannels Implicated in Deafness and Skin Disorders. AB - Background: Mutations leading to changes in properties, regulation, or expression of connexin-made channels have been implicated in 28 distinct human hereditary diseases. Eight of these result from variants of connexin 26 (Cx26), a protein critically involved in cell-cell signaling in the inner ear and skin. Lack of non toxic drugs with defined mechanisms of action poses a serious obstacle to therapeutic interventions for diseases caused by mutant connexins. In particular, molecules that specifically modulate connexin hemichannel function without affecting gap junction channels are considered of primary importance for the study of connexin hemichannel role in physiological as well as pathological conditions. Monoclonal antibodies developed in the last three decades have become the most important class of therapeutic biologicals. Recombinant methods permit rapid selection and improvement of monoclonal antibodies from libraries with large diversity. Methods: By screening a combinatorial library of human single chain fragment variable (scFv) antibodies expressed in phage, we identified a candidate that binds an extracellular epitope of Cx26. We characterized antibody action using a variety of biochemical and biophysical assays in HeLa cells, organotypic cultures of mouse cochlea and human keratinocyte-derived cells. Results: We determined that the antibody is a remarkably efficient, non-toxic, and completely reversible inhibitor of hemichannels formed by connexin 26 and does not affect direct cell-cell communication via gap junction channels. Importantly, we also demonstrate that the antibody efficiently inhibits hyperative mutant Cx26 hemichannels implicated in autosomal dominant non syndromic hearing impairment accompanied by keratitis and hystrix-like ichthyosis deafness (KID/HID) syndrome. We solved the crystal structure of the antibody, identified residues that are critical for binding and used molecular dynamics to uncover its mechanism of action. Conclusions: Although further studies will be necessary to validate the effect of the antibody in vivo, the methodology described here can be extended to select antibodies against hemichannels composed by other connexin isoforms and, consequently, to target other pathologies associated with hyperactive hemichannels. Our study highlights the potential of this approach and identifies connexins as therapeutic targets addressable by screening phage display libraries expressing human randomized antibodies. PMID- 29018326 TI - The Molecular Fingerprint of Dorsal Root and Trigeminal Ganglion Neurons. AB - The dorsal root ganglia (DRG) and trigeminal ganglia (TG) are clusters of cell bodies of highly specialized sensory neurons which are responsible for relaying information about our environment to the central nervous system. Despite previous efforts to characterize sensory neurons at the molecular level, it is still unknown whether those present in DRG and TG have distinct expression profiles and therefore a unique molecular fingerprint. To address this question, we isolated lumbar DRG and TG neurons using fluorescence-activated cell sorting from Advillin GFP transgenic mice and performed RNA sequencing. Our transcriptome analyses showed that, despite being overwhelmingly similar, a number of genes are differentially expressed in DRG and TG neurons. Importantly, we identified 24 genes which were uniquely expressed in either ganglia, including an arginine vasopressin receptor and several homeobox genes, giving each population a distinct molecular fingerprint. We compared our findings with published studies to reveal that many genes previously reported to be present in neurons are in fact likely to originate from other cell types in the ganglia. Additionally, our neuron-specific results aligned well with a dataset examining whole human TG and DRG. We propose that the data can both improve our understanding of primary afferent biology and help contribute to the development of drug treatments and gene therapies which seek targets with unique or restricted expression patterns. PMID- 29018327 TI - Maternal Cigarette Smoke Exposure Worsens Neurological Outcomes in Adolescent Offspring with Hypoxic-Ischemic Injury. AB - Hypoxic-ischemic (HI) encephalopathy occurs in approximately 6 per 1000 term newborns leading to devastating neurological consequences, such as cerebral palsy and seizures. Maternal smoking is one of the prominent risk factors contributing to HI injury. Mitochondrial integrity plays a critical role in neural injury and repair during HI. We previously showed that maternal cigarette smoke exposure (SE) can reduce brain mitochondrial fission and autophagosome markers in male offspring. This was accompanied by increased brain cell apoptosis (active caspase 3) and DNA fragmentation (TUNEL staining). Here, we aimed to investigate whether maternal SE leads to more severe neurological damage after HI brain injury in male offspring. Female BALB/c mice (8 weeks) were exposed to cigarette smoke prior to mating, during gestation, and lactation. At postnatal day 10, half of the pups from each litter underwent left carotid artery occlusion, followed by exposure to 8% oxygen (92% nitrogen). At postnatal day 40-44, maternal SE reduced grip strength in grip traction and foot fault tests, which were also reduced by HI injury to similar levels regardless of the maternal group. Limb coordination was impaired by maternal SE which was not worsened by HI injury. Maternal SE increased anxiety level in the offspring, which was normalized by HI injury. Apoptosis markers were increased in different brain regions by maternal SE, with the cortex having further increased TUNEL by HI injury, along with increased markers of inflammation and mitophagy. We conclude that maternal SE can worsen HI induced cellular damage in male offspring well into adolescence. PMID- 29018328 TI - Intermittent Ethanol during Adolescence Leads to Lasting Behavioral Changes in Adulthood and Alters Gene Expression and Histone Methylation in the PFC. AB - Adolescents primarily consume alcohol in binges, which can be particularly harmful to the developing frontal cortex and increase risk for an adult alcohol use disorder. We conducted a study investigating immediate and long lasting changes to the prefrontal cortex (PFC) transcriptome to determine the molecular mechanisms underlying adult ethanol behavioral sensitivity following binge ethanol in adolescence. DBA/2J mice were orally dosed with 4 g/kg ethanol intermittently from day 29 to 42. Adolescent mice were tested for anxiety-like behavior and ethanol sensitivity using the loss of righting reflex task. As adults, mice were tested for cognitive changes using the novel object recognition task, ethanol-induced anxiolysis and ethanol sensitivity. Adolescent binge ethanol altered ethanol sensitivity in young mice and led to lasting memory deficits in the object recognition test and greater ethanol sensitivity in adulthood. Using genomic profiling of transcripts in the PFC, we found that binge ethanol reduced myelin-related gene expression and altered chromatin modifying genes involved in histone demethylation at H3K9 and H3K36. We hypothesize that ethanol's actions on histone methylation may be a switch for future transcriptional changes that underlie the behavioral changes lasting into adulthood. PMID- 29018329 TI - CDDO and ATRA Instigate Differentiation of IMR32 Human Neuroblastoma Cells. AB - Neuroblastoma is the most common solid extra cranial tumor in infants. Improving the clinical outcome of children with aggressive tumors undergoing one of the multiple treatment options has been a major concern. Differentiating neuroblastoma cells holds promise in inducing tumor growth arrest and treating minimal residual disease. In this study, we investigated the effect of partial PPARgamma agonist 2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oic acid (CDDO) on human neuroblastoma IMR32 cells. Our results demonstrate that treatment with low concentration of CDDO and particularly in combination with all trans retinoic acid (ATRA) induced neurite outgrowth, increased the percentage of more than two neurites bearing cells, and decreased viability in IMR32 cells. These morphological changes were associated with an increase in expression of bonafide differentiation markers like beta3-tubulin and Neuron Specific Enolase (NSE). The differentiation was accompanied by a decrease in the expression of MYCN whose amplification is known to contribute to the pathogenesis of neuroblastoma. MYCN is known to negatively regulate NMYC downstream-regulated gene 1 (NDRG1) in neuroblastomas. MYCN down-regulation induced by CDDO correlated with increased expression of NDRG1. CDDO decreased Anaplastic Lymphoma Kinase (ALK) mRNA expression without affecting its protein level, while ATRA significantly down regulated ALK. Antagonism of PPARgamma receptor by T0070907 meddled with differentiation inducing effects of CDDO as observed by stunted neurite growth, increased viability and decreased expression of differentiation markers. Our findings indicate that IMR32 differentiation induced by CDDO in combination with ATRA enhances, differentiation followed by cell death via cAMP-response-element binding protein (CREB) independent and PPARgamma dependent signaling mechanisms. PMID- 29018330 TI - MicroRNA-210 Protects PC-12 Cells Against Hypoxia-Induced Injury by Targeting BNIP3. AB - MicroRNA (miR)-210 is the most consistently and predominantly up-regulated miR in response to hypoxia in multiple cancer cells. The roles of miR-210 in rat adrenal gland pheochromocytoma (PC-12) cells remain unknown. We aimed to explore the possible effect of miR-210 in neonatal brain injury. We explored the potential molecular mechanism by using PC-12 cells under hypoxia. Scramble miRs, miR-210 mimic, miR-210 inhibitor or its negative control were respectively transfected into PC-12 cells. Cell viability, migration, invasion and apoptosis were also assessed to evaluate hypoxia-induced cell injury. The expression level of miR-210 was identified by quantitative real-time polymerase chain reaction (qRT-PCR) analysis. Apoptosis-related protein expression as well as key kinases in the phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) signal pathway was studied by Western blot analysis. Hypoxia suppressed cell viability, migration and invasion, but promoted apoptosis through activation of mitochondrial- and caspase-dependent pathways. Hypoxia markedly induced up regulation of miR-210 in PC-12 cells. Overexpression of miR-210 protected PC-12 cells against hypoxia-induced injury. Bcl-2 adenovirus E1B 19 kDa-interacting protein 3 (BNIP3) was proven to be a target gene of miR-210 in PC-12 cells. miR 210 overexpression ameliorated the hypoxia-induced injury in PC-12 cells by down regulating BNIP3. Hypoxia-induced alterations of key kinases in the PI3K/AKT/mTOR signal pathway were affected by aberrant expression of BNIP3. These findings suggested that miR-210 protected PC-12 cells against hypoxia-induced injury by targeting BNIP3, involving the PI3K/AKT/mTOR signal pathway. PMID- 29018331 TI - Distinctive Roles for alpha7*- and alpha9*-Nicotinic Acetylcholine Receptors in Inflammatory and Autoimmune Responses in the Murine Experimental Autoimmune Encephalomyelitis Model of Multiple Sclerosis. AB - Previous studies have demonstrated immunosuppressive and anti-inflammatory effects of nicotine, including in the experimental autoimmune encephalomyelitis (EAE) model in mice of some forms of multiple sclerosis (MS). Other studies using knock-out (KO) mice have implicated nicotinic acetylcholine (ACh) receptors containing alpha7, alpha9, or beta2 subunits (alpha7*-, alpha9*- or beta2*-nAChR) in different, disease-exacerbating or disease-ameliorating processes. These outcomes are in harmony with gene expression analyses showing nAChR subunit mRNA in many classes of immune system cell types. Consistent with influences on disease status, predictable effects of nAChR subunit (and subtype) KO, or of nicotine exposure, are seen on immune cell numbers and distribution and on cytokine levels or other markers of immunity, inflammation, demyelination, and axonal degradation. Providing support for our hypotheses about distinctive roles for nAChR subtypes in EAE, here we have used direct and adoptive EAE induction and a nAChR subunit gene double knock-out (DKO) strategy. Immune cell expression of nAChR alpha9 subunits as protein is demonstrated by immunostaining of isolated CD4+, CD8+, CD11b+ and CD11c+ cells from wild-type (WT) mice, but not in cells from nAChR alpha9 subunit KO animals. Nicotine exposure is protective against directly-induced EAE in WT or alpha7/alpha9 DKO animals relative to effects seen in WT/vehicle-treated mice, but, remarkably, EAE is exacerbated in vehicle treated alpha7/alpha9 DKO mice. Brain lesion volume and intra-cranial inflammatory activity similarly are higher in DKO/vehicle than in WT/vehicle treated animals, although nicotine's protective effects are seen in each instance. By contrast, in adoptive transfer studies, disease severity is attenuated and disease onset is delayed in recipients of splenocytes from WT animals treated with nicotine rather than with vehicle. Moreover, protection as seen in nicotine-treated WT animals is the same in recipients of splenocytes from nAChR alpha7/alpha9 DKO mice irrespective of their exposure to nicotine or vehicle. When combined with previous observations, these findings are consistent with disease exacerbation (or even induction) being mediated at least in part via alpha9*-nAChR in peripheral immune cells. They also suggest protective roles of central nervous system (CNS) alpha7*-nAChR. The results suggest that both alpha7* and alpha9*-nAChR are potential targets of therapeutic ligands to modulate inflammation and autoimmunity. PMID- 29018332 TI - The Beneficial Effects of Melatonin Administration Following Hypoxia-Ischemia in Preterm Fetal Sheep. AB - Melatonin (MLT) is an endogenous hormone that controls circadian cycle. MLT has additional important properties that make it appealing as a neuroprotective agent it is a potent anti-oxidant, with anti-apoptotic and anti-inflammatory properties. MLT is safe for administration during pregnancy or to the newborn after birth, and can reduce white matter brain injury under conditions of chronic fetal hypoxia. Accordingly, in the current study, we examined whether an intermediate dose of MLT could restore white matter brain development when administered after an acute hypoxic ischemic (HI) insult in preterm fetal sheep. Fifteen fetal sheep at 95-98 days gestation were instrumented with femoral artery and vein catheters, and a silastic cuff placed around the umbilical cord. At 102 days gestation, the cuff was inflated, causing complete umbilical cord occlusion for 25 min in 10 fetuses, to induce acute severe HI. Five HI fetuses received intravenous MLT for 24 h beginning at 2 h after HI. The remaining five fetuses were administered saline alone. Ten days after HI, the fetal brain was collected from each animal and white and gray matter neuropathology assessed. HI caused a significant increase in apoptotic cell death (TUNEL+), activated microglia (Iba 1+), and oxidative stress (8-OHdG+) within the subventricular and subcortical white matter. HI reduced the total number of oligodendrocytes and CNPase+ myelin density. MLT administration following HI decreased apoptosis, inflammation and oxidative stress within the white matter. MLT had intermediate benefits for the developing white matter: it increased oligodendrocyte cell number within the periventricular white matter only, and improved CNPase+ myelin density within the subcortical but not the striatal white matter. MLT administration following HI was also associated with improved neuronal survival within the cortex. Neuropathology in preterm infants is complex and mediated by multiple mechanisms, including inflammation, oxidative stress and apoptotic pathways. Treatment with MLT presents a safe approach to neuroprotective therapy in preterm infants but appears to have brain region-specific benefits within the white matter. PMID- 29018337 TI - Editorial: Self-Organization in the Nervous System. PMID- 29018335 TI - A Connectomic Analysis of the Human Basal Ganglia Network. AB - The current model of basal ganglia circuits has been introduced almost two decades ago and has settled the basis for our understanding of basal ganglia physiology and movement disorders. Although many questions are yet to be answered, several efforts have been recently made to shed new light on basal ganglia function. The traditional concept of "direct" and "indirect" pathways, obtained from axonal tracing studies in non-human primates and post-mortem fiber dissection in the human brain, still retains a remarkable appeal but is somehow obsolete. Therefore, a better comprehension of human structural basal ganglia connectivity in vivo, in humans, is of uttermost importance given the involvement of these deep brain structures in many motor and non-motor functions as well as in the pathophysiology of several movement disorders. By using diffusion magnetic resonance imaging and tractography, we have recently challenged the traditional model of basal ganglia network by showing the possible existence, in the human brain, of cortico-pallidal, cortico-nigral projections, which could be mono- or polysynaptic, and an extensive subcortical network connecting the cerebellum and basal ganglia. Herein, we aimed at reconstructing the basal ganglia connectome providing a quantitative connectivity analysis of the reconstructed pathways. The present findings reinforce the idea of an intricate, not yet unraveled, network involving the cerebral cortex, basal ganglia, and cerebellum. Our findings may pave the way for a more comprehensive and holistic pathophysiological model of basal ganglia circuits. PMID- 29018333 TI - Cadherin-13 Deficiency Increases Dorsal Raphe 5-HT Neuron Density and Prefrontal Cortex Innervation in the Mouse Brain. AB - Background: During early prenatal stages of brain development, serotonin (5-HT) specific neurons migrate through somal translocation to form the raphe nuclei and subsequently begin to project to their target regions. The rostral cluster of cells, comprising the median and dorsal raphe (DR), innervates anterior regions of the brain, including the prefrontal cortex. Differential analysis of the mouse 5-HT system transcriptome identified enrichment of cell adhesion molecules in 5 HT neurons of the DR. One of these molecules, cadherin-13 (Cdh13) has been shown to play a role in cell migration, axon pathfinding, and synaptogenesis. This study aimed to investigate the contribution of Cdh13 to the development of the murine brain 5-HT system. Methods: For detection of Cdh13 and components of the 5 HT system at different embryonic developmental stages of the mouse brain, we employed immunofluorescence protocols and imaging techniques, including epifluorescence, confocal and structured illumination microscopy. The consequence of CDH13 loss-of-function mutations on brain 5-HT system development was explored in a mouse model of Cdh13 deficiency. Results: Our data show that in murine embryonic brain Cdh13 is strongly expressed on 5-HT specific neurons of the DR and in radial glial cells (RGCs), which are critically involved in regulation of neuronal migration. We observed that 5-HT neurons are intertwined with these RGCs, suggesting that these neurons undergo RGC-guided migration. Cdh13 is present at points of intersection between these two cell types. Compared to wildtype controls, Cdh13-deficient mice display increased cell densities in the DR at embryonic stages E13.5, E17.5, and adulthood, and higher serotonergic innervation of the prefrontal cortex at E17.5. Conclusion: Our findings provide evidence for a role of CDH13 in the development of the serotonergic system in early embryonic stages. Specifically, we indicate that Cdh13 deficiency affects the cell density of the developing DR and the posterior innervation of the prefrontal cortex (PFC), and therefore might be involved in the migration, axonal outgrowth and terminal target finding of DR 5-HT neurons. Dysregulation of CDH13 expression may thus contribute to alterations in this system of neurotransmission, impacting cognitive function, which is frequently impaired in neurodevelopmental disorders including attention-deficit/hyperactivity and autism spectrum disorders. PMID- 29018336 TI - Encoding and Decoding Models in Cognitive Electrophysiology. AB - Cognitive neuroscience has seen rapid growth in the size and complexity of data recorded from the human brain as well as in the computational tools available to analyze this data. This data explosion has resulted in an increased use of multivariate, model-based methods for asking neuroscience questions, allowing scientists to investigate multiple hypotheses with a single dataset, to use complex, time-varying stimuli, and to study the human brain under more naturalistic conditions. These tools come in the form of "Encoding" models, in which stimulus features are used to model brain activity, and "Decoding" models, in which neural features are used to generated a stimulus output. Here we review the current state of encoding and decoding models in cognitive electrophysiology and provide a practical guide toward conducting experiments and analyses in this emerging field. Our examples focus on using linear models in the study of human language and audition. We show how to calculate auditory receptive fields from natural sounds as well as how to decode neural recordings to predict speech. The paper aims to be a useful tutorial to these approaches, and a practical introduction to using machine learning and applied statistics to build models of neural activity. The data analytic approaches we discuss may also be applied to other sensory modalities, motor systems, and cognitive systems, and we cover some examples in these areas. In addition, a collection of Jupyter notebooks is publicly available as a complement to the material covered in this paper, providing code examples and tutorials for predictive modeling in python. The aim is to provide a practical understanding of predictive modeling of human brain data and to propose best-practices in conducting these analyses. PMID- 29018338 TI - Altered Distant Synchronization of Background Network in Mild Cognitive Impairment during an Executive Function Task. AB - Few studies to date have investigated the background network in the cognitive state relying on executive function in mild cognitive impairment (MCI) patients. Using the index of degree of centrality (DC), we explored distant synchronization of background network in MCI during a hybrid delayed-match-to-sample task (DMST), which mainly relies on the working memory component of executive function. We observed significant interactions between group and cognitive state in the bilateral posterior cingulate cortex (PCC) and the ventral subregion of precuneus. For normal control (NC) group, the long distance functional connectivity (FC) of the PCC/precuneus with the other regions of the brain was higher in rest state than that working memory state. For MCI patients, however, this pattern altered. There was no significant difference between rest and working memory state. The similar pattern was observed in the other cluster located in the right angular gyrus. To examine whether abnormal DC in PCC/precuneus and angular gyrus partially resulted from the deficit of FC between these regions and the other parts in the whole brain, we conducted a seed-based correlation analysis with these regions as seeds. The results indicated that the FC between bilateral PCC/precuneus and the right inferior parietal lobule (IPL) increased from rest to working memory state for NC participants. For MCI patients, however, there was no significant change between rest and working memory state. The similar pattern was observed for the FC between right angular gyrus and right anterior insula. However, there was no difference between MCI and NC groups in global efficiency and modularity. It may indicate a lack of efficient reorganization from rest state to a working memory state in the brain network of MCI patients. The present study demonstrates the altered distant synchronization of background network in MCI during a task relying on executive function. The results provide a new perspective regarding the neural mechanisms of executive function deficits in MCI patients, and extend our understanding of brain patterns in task-evoked cognitive states. PMID- 29018340 TI - Impaired Spatial Memory and Enhanced Habit Memory in a Rat Model of Post traumatic Stress Disorder. AB - High levels of emotional arousal can impair spatial memory mediated by the hippocampus, and enhance stimulus-response (S-R) habit memory mediated by the dorsolateral striatum (DLS). The present study was conducted to determine whether these memory systems may be similarly affected in an animal model of post traumatic stress disorder (PTSD). Sprague-Dawley rats were subjected to a "single prolonged stress" (SPS) procedure and 1 week later received training in one of two distinct versions of the plus-maze: a hippocampus-dependent place learning task or a DLS-dependent response learning task. Results indicated that, relative to non-stressed control rats, SPS rats displayed slower acquisition in the place learning task and faster acquisition in the response learning task. In addition, extinction of place learning and response learning was impaired in rats exposed to SPS, relative to non-stressed controls. The influence of SPS on hippocampal spatial memory and DLS habit memory observed in the present study may be relevant to understanding some common features of PTSD, including hippocampal memory deficits, habit-like avoidance responses to trauma-related stimuli, and greater likelihood of developing drug addiction and alcoholism. PMID- 29018339 TI - Gravitational and Dynamic Components of Muscle Torque Underlie Tonic and Phasic Muscle Activity during Goal-Directed Reaching. AB - Human reaching movements require complex muscle activations to produce the forces necessary to move the limb in a controlled manner. How gravity and the complex kinetic properties of the limb contribute to the generation of the muscle activation pattern by the central nervous system (CNS) is a long-standing and controversial question in neuroscience. To tackle this issue, muscle activity is often subdivided into static and phasic components. The former corresponds to posture maintenance and transitions between postures. The latter corresponds to active movement production and the compensation for the kinetic properties of the limb. In the present study, we improved the methodology for this subdivision of muscle activity into static and phasic components by relating them to joint torques. Ten healthy subjects pointed in virtual reality to visual targets arranged to create a standard center-out reaching task in three dimensions. Muscle activity and motion capture data were synchronously collected during the movements. The motion capture data were used to calculate postural and dynamic components of active muscle torques using a dynamic model of the arm with 5 degrees of freedom. Principal Component Analysis (PCA) was then applied to muscle activity and the torque components, separately, to reduce the dimensionality of the data. Muscle activity was also reconstructed from gravitational and dynamic torque components. Results show that the postural and dynamic components of muscle torque represent a significant amount of variance in muscle activity. This method could be used to define static and phasic components of muscle activity using muscle torques. PMID- 29018334 TI - Cornu Ammonis Regions-Antecedents of Cortical Layers? AB - Studying neocortex and hippocampus in parallel, we are struck by the similarities. All three to four layered allocortices and the six layered mammalian neocortex arise in the pallium. All receive and integrate multiple cortical and subcortical inputs, provide multiple outputs and include an array of neuronal classes. During development, each cell positions itself to sample appropriate local and distant inputs and to innervate appropriate targets. Simpler cortices had already solved the need to transform multiple coincident inputs into serviceable outputs before neocortex appeared in mammals. Why then do phylogenetically more recent cortices need multiple pyramidal cell layers? A simple answer is that more neurones can compute more complex functions. The dentate gyrus and hippocampal CA regions-which might be seen as hippocampal antecedents of neocortical layers-lie side by side, albeit around a tight bend. Were the millions of cells of rat neocortex arranged in like fashion, the surface area of the CA pyramidal cell layers would be some 40 times larger. Even if evolution had managed to fold this immense sheet into the space available, the distances between neurones that needed to be synaptically connected would be huge and to maintain the speed of information transfer, massive, myelinated fiber tracts would be needed. How much more practical to stack the "cells that fire and wire together" into narrow columns, while retaining the mechanisms underlying the extraordinary precision with which circuits form. This demonstrably efficient arrangement presents us with challenges, however, not the least being to categorize the baffling array of neuronal subtypes in each of five "pyramidal layers." If we imagine the puzzle posed by this bewildering jumble of apical dendrites, basal dendrites and axons, from many different pyramidal and interneuronal classes, that is encountered by a late-arriving interneurone insinuating itself into a functional circuit, we can perhaps begin to understand why definitive classification, covering every aspect of each neurone's structure and function, is such a challenge. Here, we summarize and compare the development of these two cortices, the properties of their neurones, the circuits they form and the ordered, unidirectional flow of information from one hippocampal region, or one neocortical layer, to another. PMID- 29018342 TI - Negative Facial Expressions - But Not Visual Scenes - Enhance Human Working Memory in Younger and Older Participants. AB - Many studies have investigated the influence of emotion on memory processes across the human lifespan. Some results have shown older adults (OA) performing better with positive stimuli, some with negative items, whereas some found no impact of emotional valence. Here we tested, in two independent studies, how younger adults (YA) and OA would perform in a visuospatial working memory (VSWM) task with positive, negative, and neutral images. The task consisted of identifying the new location of a stimulus in a crescent set of identical stimuli presented in different locations in a touch-screen monitor. In other words, participants should memorize the locations previously occupied to identify the new location. For each trial, the number of occupied locations increased until 8 or until a mistake was made. In study 1, 56 YA and 38 OA completed the task using images from the International Affective Picture System (IAPS). Results showed that, although YA outperformed OA, no effects of emotion were found. In study 2, 26 YA and 25 OA were tested using facial expressions as stimuli. Data from this study showed that negative faces facilitated performance and this effect did not differ between age groups. No differences were found between men and women. Taken together, our findings suggest that YA and OA's VSWM can be influenced by the emotional valence of the information, though this effect was present only for facial stimuli. Presumably, this may have happened due to the social and biological importance of such stimuli, which are more effective in transmitting emotions than IAPS images. Critically, our results also indicate that the mixed findings in the literature about the influence of aging on the interactions between memory and emotion may be caused by the use of different stimuli and methods. This possibility should be kept in mind in future studies about memory and emotion across the lifespan. PMID- 29018343 TI - Impact of Gastric H+/K+-ATPase rs2733743 on the Intragastric pH-Values of Dexlansoprazole Injection in Chinese Subjects. AB - Background: Not all patients with acid-related disorders receiving proton pump inhibitor (PP) treatment get adequate gastric pH control. The genetic variation of receptors, metabolic enzymes, and transporters are known to cause failures of therapies. We have conducted a study to evaluate the influence of gastric H+/K+ ATPase, CYP2C19, and ABCB1 polymorphisms on the pharmacokinetic and pharmacodynamic profiles of dexlansoprazole injection in healthy Chinese subjects. Methods: A total of 51 subjects were enrolled for pharmacokinetic and pharmacodynamic study after a single intravenous administration of 20 or 30 mg dexlansoprazole. Plasma concentrations were determined using a chiral liquid chromatography-mass spectrometry method. The intragastric pH and baseline adjusted intragastric pH parameters were introduced to evaluate the pharmacodynamic characters. Genotyping was performed by polymerase chain reaction. Results: The pharmacokinetic parameters were significantly influenced by CYP2C19 phenotypes, and gastric acid secretion inhibition were affected by both gastric H+/K+-ATPase and CYP2C19 polymorphisms. Gastric H+/K+-ATPase genotypes had greater effects than CYP2C19 genotypes on the suppression of gastric acid secretion. Conclusion: Gastric H+/K+-ATPase polymorphism may be one of the main reasons that cause insufficient gastric acid inhibition. PMID- 29018344 TI - Xanthates As Useful Probes for Testing the Active Sites of Cytochromes P450 4A11 and 2E1. AB - Xanthates (alkyl or aryl derivatives of dithiocarbonic acid) have been shown to be selective mechanism-based inactivators of cytochromes P450 2B1/2B6 and 2E1 due to covalent binding of a reactive intermediate to apoprotein after double hydrogen abstraction at alpha-carbon atom, suggesting interaction of the xanthate dithiocarbonic head with the enzyme heme. The structures of xanthates with a long alkyl chain are similar to the fatty acids. Saturated fatty acids (FA) such as lauric acid (LA), are metabolized by different cytochrome P450 isoforms to omega- and (omega-1)-hydroxy products, in humans done by CYP4A11 and CYP2E1, respectively. In the present study we aimed at elucidating the possible interactions of xanthates with two cytochrome P450 isoforms CYP4A11 and CYP2E1 involved in the metabolism of the FA. Our experiments showed that LA-omega hydroxylation by CYP4A11 is inhibited in a competitive manner by xanthates with long alkyl chain (C12-xanthate being the most potent inhibitor). On the other hand LA-(omega-1)-hydroxylation reaction by purified CYP2E1 is inactivated by a mechanism-based type. The suggested differences in the interactions of C12 xanthate with the two cytochrome P450 isoforms were investigated by molecular modeling using docking approach. The results suggested that in CYP2E1 active site C12-xanthate coordinates to the heme with its most vulnerable dithiocarbonic head leading to a mechanism-based inactivation. In CYP4A11 xanthate alkyl chain is exposed to the heme, thus, a potenial omega-hydroxylated xanthate product could be formed, which could inhibit in a competitive manner the hydroxylation of LA. The observed differences of xanthates interactions with the active sites of the two similar cytochrome P450 isoforms (CYP4A11 and CYP2E1) involved in the metabolism of FA, which lead to different changes in the enzyme activity, suggest that xanthates can be used as probing tools for analyzing enzyme active sites when exploring useful and selective compounds influencing FA homeostasis. PMID- 29018341 TI - Recent Development of Hydrogen Sulfide Releasing/Stimulating Reagents and Their Potential Applications in Cancer and Glycometabolic Disorders. AB - As an important endogenous gaseous signaling molecule, hydrogen sulfide (H2S) exerts various effects in the body. A variety of pathological changes, such as cancer, glycometabolic disorders, and diabetes, are associated with altered endogenous levels of H2S, especially decreased. Therefore, the supplement of H2S is of great significance for the treatment of diseases containing the above pathological changes. At present, many efforts have been made to increase the in vivo levels of H2S by administration of gaseous H2S, simple inorganic sulfide salts, sophisticated synthetic slow-releasing controllable H2S donors or materials, and using H2S stimulating agents. In this article, we reviewed the recent development of H2S releasing/stimulating reagents and their potential applications in two common pathological processes including cancer and glycometabolic disorders. PMID- 29018346 TI - Comparative Analysis of Compatibility Effects on Invigorating Blood Circulation for Cyperi Rhizoma Series of Herb Pairs Using Untargeted Metabolomics. AB - The mutual-assistance compatibility of Cyperi Rhizoma (Xiangfu, XF) and Angelicae Sinensis Radix (Danggui, DG), Chuanxiong Rhizoma (Chuanxiong, CX), Paeoniae Radix Alba (Baishao, BS), or Corydalis Rhizoma (Yanhusuo, YH), found in a traditional Chinese medicine (TCM) named Xiang-Fu-Si-Wu Decoction (XFSWD), can produce synergistic and promoting blood effects. Nowadays, XFSWD has been proved to be effective in activating blood circulation and dissipating blood stasis. However, the role of the herb pairs synergistic effects in the formula were poorly understood. In order to quantitatively assess the compatibility effects of herb pairs, mass spectrometry-based untargeted metabolomics studies were performed. The plasma and urine metabolic profiles of acute blood stasis rats induced by adrenaline hydrochloride and ice water and administered with Cyperi Rhizoma Angelicae Sinensis Radix (XD), Cyperi Rhizoma-Chuanxiong Rhizoma (XC), Cyperi Rhizoma-Paeoniae Radix Alba (XB), Cyperi Rhizoma-Corydalis Rhizoma (XY) were compared. Relative peak area of identified metabolites was calculated and principal component analysis (PCA) score plot from the potential markers was used to visualize the overall differences. Then, the metabolites results were used with biochemistry indicators and genes expression values as parameters to quantitatively evaluate the compatibility effects of XF series of herb pairs by PCA and correlation analysis. The collective results indicated that the four XF herb pairs regulated glycerophospholipid metabolism, steroid hormone biosynthesis and arachidonic acid metabolism pathway. XD was more prominent in regulating the blood stasis during the four XF herb pairs. This study demonstrated that metabolomics was a useful tool to efficacy evaluation and compatibility effects of TCM elucidation. PMID- 29018345 TI - Involvement of PPARgamma in the Anticonvulsant Activity of EP-80317, a Ghrelin Receptor Antagonist. AB - Ghrelin, des-acyl ghrelin and other related peptides possess anticonvulsant activities. Although ghrelin and cognate peptides were shown to physiologically regulate only the ghrelin receptor, some of them were pharmacologically proved to activate the peroxisome proliferator-activated receptor gamma (PPARgamma) through stimulation of the scavenger receptor CD36 in macrophages. In our study, we challenged the hypothesis that PPARgamma could be involved in the anticonvulsant effects of EP-80317, a ghrelin receptor antagonist. For this purpose, we used the PPARgamma antagonist GW9662 to evaluate the modulation of EP-80317 anticonvulsant properties in two different models. Firstly, the anticonvulsant effects of EP 80317 were studied in rats treated with pilocarpine to induce status epilepticus (SE). Secondly, the anticonvulsant activity of EP-80317 was ascertained in the repeated 6-Hz corneal stimulation model in mice. Behavioral and video electrocorticographic (ECoG) analyses were performed in both models. We also characterized levels of immunoreactivity for PPARgamma in the hippocampus of 6-Hz corneally stimulated mice. EP-80317 predictably antagonized seizures in both models. Pretreatment with GW9662 counteracted almost all EP-80317 effects both in mice and rats. Only the effects of EP-80317 on power spectra of ECoGs recorded during repeated 6-Hz corneal stimulation were practically unaffected by GW9662 administration. Moreover, GW9662 alone produced a decrease in the latency of tonic-clonic seizures and accelerated the onset of SE in rats. Finally, in the hippocampus of mice treated with EP-80317 we found increased levels of PPARgamma immunoreactivity. Overall, these results support the hypothesis that PPARgamma is able to modulate seizures and mediates the anticonvulsant effects of EP-80317. PMID- 29018347 TI - Mechanisms of the Testis Toxicity Induced by Chronic Exposure to Mequindox. AB - Mequindox (MEQ) is a synthetic antimicrobial agent widely used in China since the 1980s. Although the toxicity of MEQ is well recognized, its testis toxicity has not been adequately investigated. In the present study, we provide evidence that MEQ triggers oxidative stress, mitochondrion dysfunction and spermatogenesis deficiency in mice after exposure to MEQ (0, 25, 55, and 110 mg/kg in the diet) for up to 18 months. The genotoxicity and adrenal toxicity may contribute to sperm abnormalities caused by MEQ. Moreover, using LC/MS-IT-TOF analysis, two metabolites, 3-methyl-2-(1-hydroxyethyl) quinoxaline-N4-monoxide (M4) and 3 methyl-2-(1-hydroxyethyl) quinoxaline-N1-monoxide (M8), were detected in the serum of mice, which directly confirms the relationship between the N->O group reduction metabolism of MEQ and oxidative stress. Interestingly, only M4 was detected in the testes, suggesting that the higher reproductive toxicity of M4 than M8 might be due to the increased stability of M4-radical (M4-R) compared to M8-radical (M8-R). Furthermore, the expression of the blood-testis barrier (BTB) associated junctions such as tight junctions, gap junctions and basal ectoplasmic specializations were also examined. The present study demonstrated for the first time the role of the M4 in testis toxicity, and illustrated that the oxidative stress, mitochondrion dysfunction and interference in spermatogenesis, as well as the altered expression of BTB related junctions, were involved in the reproductive toxicity mediated by MEQ in vivo. PMID- 29018348 TI - Target Identification of Mycobacterium tuberculosis Phenotypic Hits Using a Concerted Chemogenomic, Biophysical, and Structural Approach. AB - Mycobacterium phenotypic hits are a good reservoir for new chemotypes for the treatment of tuberculosis. However, the absence of defined molecular targets and modes of action could lead to failure in drug development. Therefore, a combination of ligand-based and structure-based chemogenomic approaches followed by biophysical and biochemical validation have been used to identify targets for Mycobacterium tuberculosis phenotypic hits. Our approach identified EthR and InhA as targets for several hits, with some showing dual activity against these proteins. From the 35 predicted EthR inhibitors, eight exhibited an IC50 below 50 MUM against M. tuberculosis EthR and three were confirmed to be also simultaneously active against InhA. Further hit validation was performed using X ray crystallography yielding eight new crystal structures of EthR inhibitors. Although the EthR inhibitors attain their activity against M. tuberculosis by hitting yet undefined targets, these results provide new lead compounds that could be further developed to be used to potentiate the effect of EthA activated pro-drugs, such as ethionamide, thus enhancing their bactericidal effect. PMID- 29018350 TI - Folliculin Interacts with Rab35 to Regulate EGF-Induced EGFR Degradation. AB - Aims and Hypothesis: This study aims to investigate the mechanism involved in intracellular regulation of EGFR degradation induced by EGF. Methods: Phosphorylation of proteins related to EGFR signaling was examined by western blot analysis. Activation, connection between Rab35 and folliculin (FLCN) were assessed by pulldown, coimmunoprecipitation assays separately. The relationship between FLCN and cell growth was detected using gene overexpression and knock down techniques. Results: Here, we demonstrate that interfering with FLCN, a tumor suppressor, reduces the rate of EGF-induced EGFR degradation, resulting in prolonged activation of downstream signaling. Rab35 is also involved in these processes. Moreover, C-terminal of FLCN binds to and activates Rab35. Of special interest is the observation that erlotinib, a selective EGFR inhibitor, not only obstructs the EGFR-mediated cellular signaling, but also abolishes EGF-stimulated EGFR degradation. Further results reveal that EGF facilitates the activation of Rab35, and FLCN modulates EGF-dependent Rab35 activation and cell growth. Conclusions: Taken together, our study proposes a negative-feedback regulation model in which FLCN mediates EGF-induced Rab35 activation, thereby increasing EGFR degradation and attenuating EGFR signaling. PMID- 29018351 TI - Upper-Body Muscular Endurance Training Improves Performance Following 50 min of Double Poling in Well-Trained Cross-Country Skiers. AB - This study investigated the effect of muscular endurance training on O2-cost and performance in double poling (DP) on a rollerski treadmill. Twenty-two well trained cross-country skiers (31 +/- 4 years, 77 +/- 9 kg, 181 +/- 8 cm, VO2max running: 64 +/- 5 mL.kg-1.min-1) were counter-balanced to either a combined muscular endurance and running interval training group [MET; n = 11 (? = 9, ? = 2)], or an endurance running interval training group [ET; n = 11 (? = 9, ? = 2)]. Both groups continued their normal low-and moderate intensity training, but replaced 2 weekly high intensity-training sessions with two project-specific sessions for 6 weeks. In these sessions, MET combined upper-body muscular endurance training (4 * 30 repetitions, 90 s rest between sets) and running intervals (3 * 4 or 2 * 6 min, 3 min rest), while ET performed running intervals only (6 * 4 or 4 * 6 min, 3 min rest). The DP test-protocol consisted of 50 min submaximal poling for O2-cost measurement, followed by a self-paced 1,000-m performance test. In addition, subjects performed a VO2max test in running. MET increased muscular endurance (P < 0.05) and 1RM in simulated DP (P < 0.01) more than ET. Further, MET reduced the 1,000-m time and O2-cost compared to baseline values (P < 0.05), and tended to improve the 1,000-m time more than ET (P = 0.06). There were no changes in VO2max running or VO2peak DP in either MET or ET. In conclusion, 6 weeks of muscular endurance training increased both muscular endurance and 1RM in simulated DP. Further, specific upper-body muscular endurance training improved DP performance and thus, seems as a promising training model to optimize performance in well-trained cross-country skiers. PMID- 29018352 TI - How Nonlinear-Type Time-Frequency Analysis Can Help in Sensing Instantaneous Heart Rate and Instantaneous Respiratory Rate from Photoplethysmography in a Reliable Way. AB - Despite the population of the noninvasive, economic, comfortable, and easy-to install photoplethysmography (PPG), it is still lacking a mathematically rigorous and stable algorithm which is able to simultaneously extract from a single channel PPG signal the instantaneous heart rate (IHR) and the instantaneous respiratory rate (IRR). In this paper, a novel algorithm called deppG is provided to tackle this challenge. deppG is composed of two theoretically solid nonlinear type time-frequency analyses techniques, the de-shape short time Fourier transform and the synchrosqueezing transform, which allows us to extract the instantaneous physiological information from the PPG signal in a reliable way. To test its performance, in addition to validating the algorithm by a simulated signal and discussing the meaning of "instantaneous," the algorithm is applied to two publicly available batch databases, the Capnobase and the ICASSP 2015 signal processing cup. The former contains PPG signals relative to spontaneous or controlled breathing in static patients, and the latter is made up of PPG signals collected from subjects doing intense physical activities. The accuracies of the estimated IHR and IRR are compared with the ones obtained by other methods, and represent the state-of-the-art in this field of research. The results suggest the potential of deppG to extract instantaneous physiological information from a signal acquired from widely available wearable devices, even when a subject carries out intense physical activities. PMID- 29018353 TI - Heat Stress Reduces Sperm Motility via Activation of Glycogen Synthase Kinase 3alpha and Inhibition of Mitochondrial Protein Import. AB - The adverse effects of high environmental temperature exposure on animal reproductive functions have been concerned for many decades. However, the molecular basis of heat stress (HS)-induced decrease of sperm motility has not been entirely elucidated. We hypothesized that the deteriorate effects of HS may be mediated by damage of mitochondrial function and ATP synthesis. To test this hypothesis, we use mature boar sperm as model to explore the impacts of HS on mitochondrial function and sperm motility. A 6 h exposure to 42 degrees C (HS) induced significant decrease in sperm progressive motility. Concurrently, HS induced mitochondrial dysfunction that is indicated by decreased of membrane potential, respiratory chain complex I and IV activities and adenosine triphosphate (ATP) contents. Exogenous ATP abolished this effect suggesting that reduced of ATP synthesis is the committed step in HS-induced reduction of sperm motility. At the molecular level, the mitochondrial protein contents were significantly decreased in HS sperm. Notably, the cytochrome c oxidase subunit 4, which was synthesized in cytoplasm and translocated into mitochondria, was significantly lower in mitochondria of HS sperm. Glycogen synthase kinase-3alpha (GSK3alpha), a negative regulator of sperm motility that is inactivated by Ser21 phosphorylation, was dephosphorylated after HS. The GSK3alpha inhibitor CHIR99021 was able to abolish the effects of HS on sperm and their mitochondria. Taken together, our results demonstrate that HS affects sperm motility through downregulation of mitochondrial activity and ATP synthesis yield, which involves dephosphorylation of GSK3alpha and interference of mitochondrial remodeling. PMID- 29018349 TI - The Role of Hydrogen Sulfide on Cardiovascular Homeostasis: An Overview with Update on Immunomodulation. AB - Hydrogen sulfide (H2S), the third endogenous gaseous signaling molecule alongside nitric oxide (NO) and carbon monoxide, is synthesized by multiple enzymes in cardiovascular system. Similar to other gaseous mediators, H2S has demonstrated a variety of biological activities, including anti-oxidative, anti-apoptotic, pro angiogenic, vasodilating capacities and endothelial NO synthase modulating activity, and regulates a wide range of pathophysiological processes in cardiovascular disorders. However, the underlying mechanisms by which H2S mediates cardiovascular homeostasis are not fully understood. This review focuses on the recent progress on functional and mechanistic aspects of H2S in the inflammatory and immunoregulatory processes of cardiovascular disorders, importantly myocardial ischemia, heart failure, and atherosclerosis. Moreover, we highlight the challenges for developing H2S-based therapy to modulate the pathological processes in cardiovascular diseases. A better understanding of the immunomodulatory and biochemical functions of H2S might provide new therapeutic strategies for these cardiovascular diseases. PMID- 29018355 TI - Criterion-Validity of Commercially Available Physical Activity Tracker to Estimate Step Count, Covered Distance and Energy Expenditure during Sports Conditions. AB - Background: In the past years, there was an increasing development of physical activity tracker (Wearables). For recreational people, testing of these devices under walking or light jogging conditions might be sufficient. For (elite) athletes, however, scientific trustworthiness needs to be given for a broad spectrum of velocities or even fast changes in velocities reflecting the demands of the sport. Therefore, the aim was to evaluate the validity of eleven Wearables for monitoring step count, covered distance and energy expenditure (EE) under laboratory conditions with different constant and varying velocities. Methods: Twenty healthy sport students (10 men, 10 women) performed a running protocol consisting of four 5 min stages of different constant velocities (4.3; 7.2; 10.1; 13.0 km.h-1), a 5 min period of intermittent velocity, and a 2.4 km outdoor run (10.1 km.h-1) while wearing eleven different Wearables (Bodymedia Sensewear, Beurer AS 80, Polar Loop, Garmin Vivofit, Garmin Vivosmart, Garmin Vivoactive, Garmin Forerunner 920XT, Fitbit Charge, Fitbit Charge HR, Xaomi MiBand, Withings Pulse Ox). Step count, covered distance, and EE were evaluated by comparing each Wearable with a criterion method (Optogait system and manual counting for step count, treadmill for covered distance and indirect calorimetry for EE). Results: All Wearables, except Bodymedia Sensewear, Polar Loop, and Beurer AS80, revealed good validity (small MAPE, good ICC) for all constant and varying velocities for monitoring step count. For covered distance, all Wearables showed a very low ICC (<0.1) and high MAPE (up to 50%), revealing no good validity. The measurement of EE was acceptable for the Garmin, Fitbit and Withings Wearables (small to moderate MAPE), while Bodymedia Sensewear, Polar Loop, and Beurer AS80 showed a high MAPE up to 56% for all test conditions. Conclusion: In our study, most Wearables provide an acceptable level of validity for step counts at different constant and intermittent running velocities reflecting sports conditions. However, the covered distance, as well as the EE could not be assessed validly with the investigated Wearables. Consequently, covered distance and EE should not be monitored with the presented Wearables, in sport specific conditions. PMID- 29018354 TI - N-acetylcysteine Counteracts Adipose Tissue Macrophage Infiltration and Insulin Resistance Elicited by Advanced Glycated Albumin in Healthy Rats. AB - Background: Advanced glycation endproducts elicit inflammation. However, their role in adipocyte macrophage infiltration and in the development of insulin resistance, especially in the absence of the deleterious biochemical pathways that coexist in diabetes mellitus, remains unknown. We investigated the effect of chronic administration of advanced glycated albumin (AGE-albumin) in healthy rats, associated or not with N-acetylcysteine (NAC) treatment, on insulin sensitivity, adipose tissue transcriptome and macrophage infiltration and polarization. Methods: Male Wistar rats were intraperitoneally injected with control (C) or AGE-albumin alone, or, together with NAC in the drinking water. Biochemical parameters, lipid peroxidation, gene expression and protein contents were, respectively, determined by enzymatic techniques, reactive thiobarbituric acid substances, RT-qPCR and immunohistochemistry or immunoblot. Carboxymethyllysine (CML) and pyrraline (PYR) were determined by LC/mass spectrometry (LC-MS/MS) and ELISA. Results: CML and PYR were higher in AGE albumin as compared to C. Food consumption, body weight, systolic blood pressure, plasma lipids, glucose, hepatic and renal function, adipose tissue relative weight and adipocyte number were similar among groups. In AGE-treated animals, insulin resistance, adipose macrophage infiltration and Col12a1 mRNA were increased with no changes in M1 and M2 phenotypes as compared to C-albumin treated rats. Total GLUT4 content was reduced by AGE-albumin as compared to C albumin. NAC improved insulin sensitivity, reduced urine TBARS, adipose macrophage number and Itgam and Mrc mRNA and increased Slc2a4 and Ppara. CD11b, CD206, Ager, Ddost, Cd36, Nfkb1, Il6, Tnf, Adipoq, Retn, Arg, and Il12 expressions were similar among groups. Conclusions: AGE-albumin sensitizes adipose tissue to inflammation due to macrophage infiltration and reduces GLUT4, contributing to insulin resistance in healthy rats. NAC antagonizes AGE-albumin and prevents insulin resistance. Therefore, it may be a useful tool in the prevention of AGE action on insulin resistance and long-term complications of DM. PMID- 29018356 TI - Xiao-Yao-San, a Chinese Medicine Formula, Ameliorates Chronic Unpredictable Mild Stress Induced Polycystic Ovary in Rat. AB - Chronic stress induces endocrine disturbance, which contributes to the development of polycystic ovary syndrome (PCOS), a condition that remains a challenge for clinicians to cope with. The present study investigated the effect of Xiao-Yao-San (XYS), a traditional Chinese medicine formula used for treatment of gynecological disease, on the chronic stress-induced polycystic ovary and its underlying mechanism. Female Sprague-Dwaley rats underwent a 3 weeks chronic unpredictable mild stress (CUMS) procedure to establish the PCOS model, followed by 4 weeks treatment with XYS (0.505 g/kg or 1.01 g/kg) by gavage. Granulosa cells were exposed to noradrenaline (1 mM) in vitro for 24 h, followed by incubation with or without XYS-treated rat serum for 24 h. Post-treatment with XYS ameliorated CUMS-induced irregular estrous cycles and follicles development abnormalities, decrease of estradiol and progesterone level as well as increase of luteinizing hormone in serum, reduced cystic follicles formation and the apoptosis and autophagy of granulosa cells, attenuated the increase in dopamine beta hydroxylase and c-fos level in locus coeruleus, the noradrenaline level in serum and ovarian tissue, and the expression of beta 2 adrenergic receptor in ovarian tissue. Besides, XYS alleviated the reduction of phosphorylation of ribosomal protein S6 kinase polypeptide I and protein kinase B, as well as the increase of microtubule-associated protein light chain 3-I to microtubule associated protein light chain 3-II conversion both in vivo and in vitro. This study demonstrated XYS as a potential strategy for CUMS induced polycystic ovary, and suggested that the beneficial role of XYS was correlated with the regulation of the sympathetic nerve activity. PMID- 29018357 TI - Distinct Subfamilies of Odorant Binding Proteins in Locust (Orthoptera, Acrididae): Molecular Evolution, Structural Variation, and Sensilla-Specific Expression. AB - Odorant binding proteins (OBPs) play an important role in insect olfaction, facilitating transportation of odorant molecules in the sensillum lymph. While most of the researches are concentrated on Lepidopteran and Dipteran species, our knowledge about Orthopteran species is still very limited. In this study, we have investigated OBPs of the desert locust Schistocerca gregaria, a representative Orthopteran species. We have identified 14 transcripts from a S. gregaria antennal transcriptome encoding SgreOBPs, and recapitulated the phylogenetic relationship of SgreOBPs together with OBPs from three other locust species. Two conserved subfamilies of classic OBPs have been identified, named I-A and II-A, exhibiting both common and subfamily-specific amino acid motifs. Distinct evolutionary features were observed for subfamily I-A and II-A OBPs. Surface topology and interior cavity were elucidated for OBP members from the two subfamilies. Antennal topographic expression revealed distinct sensilla- and cellular- specific expression patterns for SgreOBPs from subfamily I-A and II-A. These findings give first insight into the repertoire of locust OBPs with respect to their molecular and evolutionary features as well as their expression in the antenna, which may serve as an initial step to unravel specific roles of distinct OBP subfamilies in locust olfaction. PMID- 29018359 TI - That Escalated Quickly-Planning to Ignore RPE Can Backfire. AB - Ratings of perceived exertion (RPE) are routinely assessed in exercise science and RPE is substantially associated with physiological criterion measures. According to the psychobiological model of endurance, RPE is a central limiting factor in performance. While RPE is known to be affected by psychological manipulations, it remains to be examined whether RPE can be self-regulated during static muscular endurance exercises to enhance performance. In this experiment, we investigate the effectiveness of the widely used and recommended self regulation strategy of if-then planning (i.e., implementation intentions) in down regulating RPE and improving performance in a static muscular endurance task. 62 female students (age: M = 23.7 years, SD = 4.0) were randomly assigned to an implementation intention or a control condition and performed a static muscular endurance task. They held two intertwined rings as long as possible while avoiding contacts between the rings. In the implementation intention condition, participants had an if-then plan: "If the task becomes too strenuous for me, then I ignore the strain and tell myself: Keep going!" Every 25 +/- 10 s participants reported their RPE along with their perceived pain. Endurance performance was measured as time to failure, along with contact errors as a measure of performance quality. No differences emerged between implementation intention and control participants regarding time to failure and performance quality. However, mixed-effects model analyses revealed a significant Time-to-Failure * Condition interaction for RPE. Compared to the control condition, participants in the implementation intention condition reported substantially greater increases in RPE during the second half of the task and reached higher total values of RPE before task termination. A similar but weaker pattern evinced for perceived pain. Our results demonstrate that RPE during an endurance task can be self-regulated with if-then plans. This finding is particularly important given how frequently RPE is used in exercise science as a correlate of physiological processes that ultimately limit performance. Unexpectedly, participants with implementation intentions reported higher RPE than control participants. This suggests that strategies to self-regulate RPE might have ironic effects that hamper performance, maybe by increasing attention to RPE. This implication is important for exercise physiologists, athletes and coaches. PMID- 29018358 TI - Identification and Characterization of Odorant Binding Proteins in the Forelegs of Adelphocoris lineolatus (Goeze). AB - The chemosensory system is essential for insects to detect exogenous compounds, and odorant binding proteins (OBPs) play crucial roles in odorant binding and transduction. In the alfalfa plant bug Adelphocoris lineolatus, an important pest of multiple crops, our understanding of the physiological roles of antenna-biased OBPs has increased dramatically, whereas OBPs related to gustation have remained mostly unexplored. In this study, we employed RNA sequencing and RACE PCR methods to identify putative OBPs from the adult forelegs of both sexes. Eight candidate OBPs were identified, and three OBPs (AlinOBP15, 16, and 17) were novel. Full length sequence alignment and phylogenetic analyses suggested that these three candidate OBPs had characteristics typical of the insect OBP family. AlinOBP16 and 17 displayed six highly conserved cysteines, placing them in the classic OBP subfamily, whereas AlinOBP15 resembled AlinOBP14 and clustered with the Plus-C clade. Quantitative real-time PCR (qRT-PCR) revealed distinct and significant tissue- and sex-biased expression patterns. AlinOBP15 was highly expressed in female heads, and AlinOBP16 and 17 were strongly expressed in female antennae. In particular, AlinOBP11, the most abundant OBP gene in our foreleg transcriptome dataset, was predominately expressed in adult legs. Furthermore, four types of sensilla hairs were observed on the forelegs of adult A. lineolatus, including sensilla trichodea, setae, and two types of sensilla chaetica (Sch1 and Sch2). Anti-AlinOBP11 antiserum strongly labeled the outer sensillum lymph of Sch2, implying that it has important gustatory functions in A. lineolatus. Our current findings provide evidence that OBPs can be functionally expressed in the tarsal gustatory sensilla of hemipteran mirid species, broadening our understanding of OBP chemosensory function in insects and facilitating the discovery of new functional targets for the regulation of insect host-searching behaviors. PMID- 29018361 TI - New Methods for Processing and Quantifying VO2 Kinetics to Steady State: VO2 Onset Kinetics. AB - Current methods of oxygen uptake (VO2) kinetics data handling may be too simplistic for the complex physiology involved in the underlying physiological processes. Therefore, the aim of this study was to quantify the VO2 kinetics to steady state across the full range of sub-ventilatory threshold work rates, with a particular focus on the VO2 onset kinetics. Ten healthy, moderately trained males participated in five bouts of cycling. Each bout involved 10 min at a percentage of the subject's ventilation threshold (30, 45, 60, 75, 90%) from unloaded cycling. The VO2 kinetics was quantified using the conventional mono exponential time constant (tau, tau), as well as the new methods for VO2 onset kinetics. Compared to linear modeling, non-linear modeling caused a deterioration of goodness of fit (main effect, p < 0.001) across all exercise intensities. Remainder kinetics were also improved using a modified application of the mono exponential model (main effect, p < 0.001). Interestingly, the slope from the linear regression of the onset kinetics data is similar across all subjects and absolute exercise intensities, and thereby independent of subject fitness and tau. This could indicate that there are no functional limitations between subjects during this onset phase, with limitations occurring for the latter transition to steady state. Finally, the continuing use of mono-exponential modeling could mask important underlying physiology of more instantaneous VO2 responses to steady state. Consequently, further research should be conducted on this new approach to VO2 onset kinetics. PMID- 29018362 TI - Effects of Unloaded vs. Loaded Plyometrics on Speed and Power Performance of Elite Young Soccer Players. AB - The purpose of this study was to investigate the effects of loaded and unloaded plyometric training strategies on speed and power performance of elite young soccer players. Twenty-three under-17 male soccer players (age: 15.9 +/- 1.2 years, height: 178.3 +/- 8.1 cm, body-mass (BM): 68.1 +/- 9.3 kg) from the same club took part in this study. The athletes were pair-matched in two training groups: loaded vertical and horizontal jumps using an haltere type handheld with a load of 8% of the athletes' body mass (LJ; n = 12) and unloaded vertical and horizontal plyometrics (UJ; n = 11). Sprinting speeds at 5-, 10-, and 20-m, mean propulsive power (MPP) relative to the players' BM in the jump squat exercise, and performance in the squat jump (SJ) and countermovement jump (CMJ) were assessed pre- and post-training period. During the experimental period, soccer players performed 12 plyometric training sessions across a 6-week preseason period. Magnitude based inferences and standardized differences were used for statistical analysis. A very likely increase in the vertical jumps was observed for the LJ group (99/01/00 and 98/02/00 for SJ and CMJ, respectively). In the UJ group a likely increase was observed for both vertical jumps (83/16/01 and 90/10/00, for SJ and CMJ, respectively). An almost certainly decrease in the sprinting velocities along the 20-m course were found in the LJ group (00/00/100 for all split distances tested). Meanwhile, in the UJ likely to very likely decreases were observed for all sprinting velocities tested (03/18/79, 01/13/86, and 00/04/96, for velocities in 5-, 10-, and 20-m, respectively). No meaningful differences were observed for the MPP in either training group (11/85/04 and 37/55/08 for LJ and UJ, respectively). In summary, under-17 professional soccer players increased jumping ability after a 6-week preseason training program, using loaded or unloaded jumps. Despite these positive adaptations, both plyometric strategies failed to produce worthwhile improvements in maximal speed and power performances, which is possible related to the interference of concurrent training effects. New training strategies should be developed to ensure adequate balance between power and endurance loads throughout short (and high-volume) soccer preseasons. PMID- 29018360 TI - Adenosine: Direct and Indirect Actions on Gastric Acid Secretion. AB - Composed by a molecule of adenine and a molecule of ribose, adenosine is a paradigm of recyclable nucleoside with a multiplicity of functions that occupies a privileged position in the metabolic and regulatory contexts. Adenosine is formed continuously in intracellular and extracellular locations of all tissues. Extracellular adenosine is a signaling molecule, able to modulate a vast range of physiologic responses in many cells and organs, including digestive organs. The adenosine A1, A2A, A2B, and A3 receptors are P1 purinergic receptors, G protein coupled proteins implicated in tissue protection. This review is focused on gastric acid secretion, a process centered on the parietal cell of the stomach, which contains large amounts of H+/K+-ATPase, the proton pump responsible for proton extrusion during acid secretion. Gastric acid secretion is regulated by an extensive collection of neural stimuli and endocrine and paracrine agents, which act either directly at membrane receptors of the parietal cell or indirectly through other regulatory cells of the gastric mucosa, as well as mechanic and chemic stimuli. In this review, after briefly introducing these points, we condense the current body of knowledge about the modulating action of adenosine on the pathophysiology of gastric acid secretion and update its significance based on recent findings in gastric mucosa and parietal cells in humans and animal models. PMID- 29018363 TI - Moderate-Load Muscular Endurance Strength Training Did Not Improve Peak Power or Functional Capacity in Older Men and Women. AB - The present study determined the effects of muscular endurance strength training on maximum strength and power, functional capacity, muscle activation and hypertrophy in older men and women. Eighty-one men and women acted as an intervention group while 22 acted as non-training controls (age range 64-75 y). Intervention training included super-sets (i.e., paired exercises, immediately performing the second exercises following completion of the first) with short rest intervals (30-60 s between sets) at an intensity of 50-60% one-repetition maximum (1-RM) for 15-20 repetitions. Concentric leg press actions measured maximum strength (1-RM) and concentric peak power. Functional capacity was assessed by maximum speed walking tests (i.e., forward walk, backward walk, timed up-and-go, and stair climb tests). Quadriceps muscle activation was assessed by surface electromyogram and twitch interpolation technique. Vastus lateralis cross sectional area was measured by panoramic ultrasound. Compared to control, the intervention groups increased maximum strength (1-RM; men: 10 +/- 7% vs. 2 +/- 3%, women: 14 +/- 9% vs. 1 +/- 6% both P < 0.01) and vastus lateralis cross sectional area (men: 6 +/- 7% vs. -3 +/- 6%, women: 10 +/- 10% vs. 0 +/- 4% both P < 0.05). But there were no between-group differences in peak power, muscle activation or functional capacity (e.g., stair climb; men: -5 +/- 7% vs. -4 +/- 3%, women: -5 +/- 6% vs. -2 +/- 5% both P > 0.05). While benefits occurred during muscular endurance strength training, specific stimuli are probably needed to target all aspects of age-related health. PMID- 29018364 TI - Cloning and Functional Characterization of Octbeta2-Receptor and Tyr1-Receptor in the Chagas Disease Vector, Rhodnius prolixus. AB - Octopamine and tyramine, both biogenic amines, are bioactive chemicals important in diverse physiological processes in invertebrates. In insects, octopamine and tyramine operate analogously to epinephrine and norepinephrine in the vertebrates. Octopamine and tyramine bind to G-protein coupled receptors (GPCRs) leading to changes in second messenger levels and thereby modifying the function in target tissues and insect behavior. In this paper, we report the cDNA sequences of two GPCRs, RhoprOctbeta2-R, and RhoprTyr1-R, have been cloned and functionally characterized from Rhodnius prolixus. Octopamine and tyramine each activate RhoprOctbeta2-R and RhoprTyr1-R in a dose-dependent manner. Octopamine is one order of magnitude more potent than tyramine in activating RhoprOctbeta2 R. Tyramine is two orders of magnitude more potent than octopamine in activating RhoprTyr1-R. Phentolamine and gramine significantly antagonize RhoprOctbeta2-R, whereas yohimbine and phenoxybenzamine are effective blockers of RhoprTyr1-R. The transcripts of both receptors are enriched in the central nervous system (CNS) and are expressed throughout the adult female reproductive system. It has been shown in other insects that Octbeta2-R is essential for processes such as ovulation and fertilization. We previously reported that octopamine and tyramine modulate oviducts and bursa contractions in R. prolixus. Our data confirm the importance of octopamine and tyramine signaling in the reproductive system of R. prolixus. PMID- 29018365 TI - Searching for the Haplorrhine Heterotherm: Field and Laboratory Data of Free Ranging Tarsiers. AB - The observation of heterothermy in a single suborder (Strepsirrhini) only within the primates is puzzling. Given that the placental-mammal ancestor was likely a heterotherm, we explored the potential for heterothermy in a primate closely related to the Strepsirrhini. Based upon phylogeny, body size and habitat stability since the Late Eocene, we selected western tarsiers (Cephalopachus bancanus) from the island of Borneo. Being the sister clade to Strepsirrhini and basal in Haplorrhini (monkeys and apes), we hypothesized that C. bancanus might have retained the heterothermic capacity observed in several small strepsirrhines. We measured resting metabolic rate, subcutaneous temperature, evaporative water loss and the percentage of heat dissipated through evaporation, at ambient temperatures between 22 and 35 degrees C in fresh-caught wild animals (126.1 +/- 2.4 g). We also measured core body temperatures in free-ranging animals. The thermoneutral zone was 25-30 degrees C and the basal metabolic rate was 3.52 +/- 0.06 W.kg-1 (0.65 +/- 0.01 ml O2.g-1.h-1). There was no evidence of adaptive heterothermy in either the laboratory data or the free-ranging data. Instead, animals appeared to be cold sensitive (Tb ~ 31 degrees C) at the lowest temperatures. We discuss possible reasons for the apparent lack of heterothermy in tarsiers, and identify putative heterotherms within Platyrrhini. We also document our concern for the vulnerability of C. bancanus to future temperature increases associated with global warming. PMID- 29018366 TI - Editorial: Cardiac Remodeling: New Insights in Physiological and Pathological Adaptations. PMID- 29018370 TI - Empathic and Self-Regulatory Processes Governing Doping Behavior. AB - Evidence associating doping behavior with moral disengagement (MD) has accumulated over recent years. However, to date, research examining links between MD and doping has not considered key theoretically grounded influences and outcomes of MD. As such, there is a need for quantitative research in relevant populations that purposefully examines the explanatory pathways through which MD is thought to operate. Toward this end, the current study examined a conceptually grounded model of doping behavior that incorporated empathy, doping self regulatory efficacy (SRE), doping MD, anticipated guilt and self-reported doping/doping susceptibility. Participants were specifically recruited to represent four key physical-activity contexts and consisted of team- (n = 195) and individual- (n = 169) sport athletes and hardcore- (n = 125) and corporate- (n = 121) gym exercisers representing both genders (nmale = 371; nfemale = 239); self-reported lifetime prevalence of doping across the sample was 13.6%. Each participant completed questionnaires assessing the aforementioned variables. Structural equation modeling indicated strong support for all study hypotheses. Specifically, we established: (a) empathy and doping SRE negatively predicted reported doping; (b) the predictive effects of empathy and doping SRE on reported doping were mediated by doping MD and anticipated guilt; (c) doping MD positively predicted reported doping; (d) the predictive effects of doping MD on reported doping were partially mediated by anticipated guilt. Substituting self-reported doping for doping susceptibility, multisample analyses then demonstrated these predictive effects were largely invariant between males and females and across the four physical-activity contexts represented. These findings extend current knowledge on a number of levels, and in doing so aid our understanding of key psychosocial processes that may govern doping behavior across key physical activity contexts. PMID- 29018368 TI - Biclustered Independent Component Analysis for Complex Biomarker and Subtype Identification from Structural Magnetic Resonance Images in Schizophrenia. AB - Clinical and cognitive symptoms domain-based subtyping in schizophrenia (Sz) has been critiqued due to the lack of neurobiological correlates and heterogeneity in symptom scores. We, therefore, present a novel data-driven framework using biclustered independent component analysis to detect subtypes from the reliable and stable gray matter concentration (GMC) of patients with Sz. The developed methodology consists of the following steps: source-based morphometry (SBM) decomposition, selection and sorting of two component loadings, subtype component reconstruction using group information-guided ICA (GIG-ICA). This framework was applied to the top two group discriminative components namely the insula/superior temporal gyrus/inferior frontal gyrus (I-STG-IFG component) and the superior frontal gyrus/middle frontal gyrus/medial frontal gyrus (SFG-MiFG-MFG component) from our previous SBM study, which showed diagnostic group difference and had the highest effect sizes. The aggregated multisite dataset consisted of 382 patients with Sz regressed of age, gender, and site voxelwise. We observed two subtypes (i.e., two different subsets of subjects) each heavily weighted on these two components, respectively. These subsets of subjects were characterized by significant differences in positive and negative syndrome scale (PANSS) positive clinical symptoms (p = 0.005). We also observed an overlapping subtype weighing heavily on both of these components. The PANSS general clinical symptom of this subtype was trend level correlated with the loading coefficients of the SFG-MiFG MFG component (r = 0.25; p = 0.07). The reconstructed subtype-specific component using GIG-ICA showed variations in voxel regions, when compared to the group component. We observed deviations from mean GMC along with conjunction of features from two components characterizing each deciphered subtype. These inherent variations in GMC among patients with Sz could possibly indicate the need for personalized treatment and targeted drug development. PMID- 29018369 TI - A Solution to Modeling Multilevel Confirmatory Factor Analysis with Data Obtained from Complex Survey Sampling to Avoid Conflated Parameter Estimates. AB - The issue of equality in the between-and within-level structures in Multilevel Confirmatory Factor Analysis (MCFA) models has been influential for obtaining unbiased parameter estimates and statistical inferences. A commonly seen condition is the inequality of factor loadings under equal level-varying structures. With mathematical investigation and Monte Carlo simulation, this study compared the robustness of five statistical models including two model based (a true and a mis-specified models), one design-based, and two maximum models (two models where the full rank of variance-covariance matrix is estimated in between level and within level, respectively) in analyzing complex survey measurement data with level-varying factor loadings. The empirical data of 120 3rd graders' (from 40 classrooms) perceived Harter competence scale were modeled using MCFA and the parameter estimates were used as true parameters to perform the Monte Carlo simulation study. Results showed maximum models was robust to unequal factor loadings while the design-based and the miss-specified model-based approaches produced conflated results and spurious statistical inferences. We recommend the use of maximum models if researchers have limited information about the pattern of factor loadings and measurement structures. Measurement models are key components of Structural Equation Modeling (SEM); therefore, the findings can be generalized to multilevel SEM and CFA models. Mplus codes are provided for maximum models and other analytical models. PMID- 29018371 TI - What Vowels Can Tell Us about the Evolution of Music. AB - Whether music and language evolved independently of each other or whether both evolved from a common precursor remains a hotly debated topic. We here emphasize the role of vowels in the language-music relationship, arguing for a shared heritage of music and speech. Vowels play a decisive role in generating the sound or sonority of syllables, the main vehicles for transporting prosodic information in speech and singing. Timbre is, beyond question, the primary parameter that allows us to discriminate between different vowels, but vowels also have intrinsic pitch, intensity, and duration. There are striking correspondences between the number of vowels and the number of pitches in musical scales across cultures: an upper limit of roughly 12 elements, a lower limit of 2, and a frequency peak at 5-7 elements. Moreover, there is evidence for correspondences between vowels and scales even in specific cultures, e.g., cultures with three vowels tend to have tritonic scales. We report a match between vowel pitch and musical pitch in meaningless syllables of Alpine yodelers, and highlight the relevance of vocal timbre in the music of many non-Western cultures, in which vocal timbre/vowel timbre and musical melody are often intertwined. Studies showing the pivotal role of vowels and their musical qualities in the ontogeny of language and in infant directed speech, will be used as further arguments supporting the hypothesis that music and speech evolved from a common prosodic precursor, where the vowels exhibited both pitch and timbre variations. PMID- 29018367 TI - Treatment of Comorbid Alcohol Dependence and Anxiety Disorder: Review of the Scientific Evidence and Recommendations for Treatment. AB - Patients with alcohol-use disorders (AUDs) have a high prevalence of anxiety disorders (AnxDs). "Co-occurring disorders" refers to the coexistence of an AUD and/or drug related disorders with another non-addictive psychiatric disorder. The aim of this study was to assess the effectiveness of psychopharmacological treatments and psychotherapy in patients with AUD and AnxD and to propose recommendations for the treatment of patients with comorbid AnxDs and AUDs. Randomized clinical trials, meta-analyses, and clinical guidelines were retrieved from PubMed, Embase, and Cochrane databases. Paroxetine was found to be effective in social anxiety patients with alcohol dependence. Selective serotonin reuptake inhibitors (SSRIs), especially sertraline, showed effective results in posttraumatic stress disorder and in comorbid AnxD-AUD. However, SSRIs should be used with caution when patients are actively drinking because they may increase alcohol consumption. Buspirone, gabapentin, and pregabalin were found to be effective in comorbid AnxD-AUD. The treatment of dual AnxDs should start as early as possible. Since AUDs and AnxDs can reinforce each other, treatments targeting both pathologies can be effective. Women suffer from higher levels of stress and AnxDs than men, and they are also more vulnerable to maintaining alcohol consumption levels. Further research is needed in this comorbid patient population, including the study of different types of patients and gender perspectives. PMID- 29018372 TI - Neurodiversity, Giftedness, and Aesthetic Perceptual Judgment of Music in Children with Autism. AB - The author investigated the capability of aesthetic perceptual judgment of music in male children diagnosed with autism spectrum disorder (ASD) when compared to age-matched typically developing (TD) male children. Nineteen boys between 4 and 7 years of age with ASD were compared to 28 TD boys while listening to musical stimuli of different aesthetic levels. The results from two musical experiments using the above participants, are described here. In the first study, responses to a Mozart minuet and a dissonant altered version of the same Mozart minuet were compared. In this first study, the results indicated that both ASD and TD males preferred listening to the original consonant version of the minuet over the altered dissonant version. With the same participants, the second experiment included musical stimuli from four renowned composers: Mozart and Bach's musical works, both considered consonant in their harmonic structure, were compared with music from Schoenberg and Albinoni, two composers who wrote musical works considered exceedingly harmonically dissonant. In the second study, when the stimuli included consonant or dissonant musical stimuli from different composers, the children with ASD showed greater preference for the aesthetic quality of the highly dissonant music compared to the TD children. While children in both of the groups listened to the consonant stimuli of Mozart and Bach music for the same amount of time, the children with ASD listened to the dissonant music of Schoenberg and Albinoni longer than the TD children. As preferring dissonant music is more aesthetically demanding perceptually, these results suggest that ASD male children demonstrate an enhanced capability of aesthetic judgment of music. Subsidiary data collected after the completion of the experiment revealed that absolute pitch ability was prevalent only in the children with ASD, some of whom also possessed extraordinary musical memory. The implications of these results are discussed with reference to the broader notion of neurodiversity, a term coined to capture potentially gifted qualities in individuals diagnosed with ASD. PMID- 29018373 TI - Behavioral Oscillations in Visual Attention Modulated by Task Difficulty. AB - The spotlight of attention is full of discrete moments and operates periodically. Recently, it has been well-documented there were behavioral oscillations in visual attention, however, different periodicities were demonstrated. Task difficulty may be an important factor causing disagreement in attentional periodic patterns. The present study examined behavioral oscillations in visual attention during difficult and easy tasks. A modified high temporal resolution cue-target paradigm in which the cue-target stimulus onset asynchrony (SOAs) varied from 0.1 to 1.08 s in steps of 20 ms was used. The target was detected with the accuracy of 65% in the difficult condition and 75% in the easy condition. Oscillatory patterns were analyzed and observed in behavioral performance. A theta rhythm was visible in the difficult version. However, attention oscillation increased to a higher frequency in the easy version. Task difficulty was negatively related to power for all bands. Our findings suggest that the attention spotlight switched faster when the task was easy, while, it switched much more slowly when the task was difficult in order to obtain more information. A flexible mechanism for attention spotlight was demonstrated, and task demand modulated attention oscillations. PMID- 29018374 TI - Psychological Health in the Retirement Transition: Rationale and First Findings in the HEalth, Ageing and Retirement Transitions in Sweden (HEARTS) Study. AB - From an aging research and life-course perspective, the transition to retirement marks a significant life-event and provides a unique opportunity to study psychological health and coping during a period of substantial change in everyday life. The aim of the present paper is to: (a) outline the rationale of the HEalth, Ageing and Retirement Transitions in Sweden (HEARTS) study, (b) describe the study sample, and (c) to present some initial results from the two first waves regarding the association between retirement status and psychological health. The HEARTS study is designed to annually study psychological health in the years before and following retirement, and to examine change and stability patterns related to the retirement event. Among a representative Swedish population-based sample of 14,990 individuals aged 60-66 years, 5,913 completed the baseline questionnaire in 2015. The majority of the participants (69%) completed a web-based survey, and the rest (31%) completed a paper version. The baseline HEARTS sample represents the general population well in terms of gender and age, but is more highly educated. Cross-sectional findings from the first wave showed that retired individuals demonstrated better psychological health compared to those who were still working. Longitudinal results from the first and second waves showed that individuals who retired between waves showed more positive changes in psychological health compared with those still working or previously retired. PMID- 29018375 TI - One Label or Two? Linguistic Influences on the Similarity Judgment of Objects between English and Japanese Speakers. AB - Recent findings have re-examined the linguistic influence on cognition and perception, while identifying evidence that supports the Whorfian hypothesis. We examine how English and Japanese speakers perceive similarity of pairs of objects, by using two sets of stimuli: one in which two distinct linguistic categories apply to respective object images in English, but only one linguistic category applies in Japanese; and another in which two distinct linguistic categories apply to respective object images in Japanese, but only one applies in English. We conducted four studies and tested different groups of participants in each of them. In Study 1, we asked participants to name the two objects before engaging in the similarity judgment task. Here, we expected a strong linguistic effect. In Study 2, we asked participants to engage in the same task without naming, where we assumed that the condition is close enough to our daily visual information processing where language is not necessarily prompted. We further explored whether the language still influences the similarity perception by asking participants to engage in the same task basing on the visual similarity (Study 3) and the functional similarity (Study 4). The results overall indicated that English and Japanese speakers perceived the two objects to be more similar when they were in the same linguistic categories than when they were in different linguistic categories in their respective languages. Implications for research testing the Whorfian hypothesis and the requirement for methodological development beyond behavioral measures are discussed. PMID- 29018376 TI - Future Time Perspective in Occupational Teams: Do Older Workers Prefer More Familiar Teams? AB - Working in teams is quite popular across different industries and cultures. While some of these teams exist for longer time periods, other teams collaborate only for short periods and members switch into new teams after goals are accomplished. However, workers' preferences for joining a new team might vary in different ways. Based on Carstensen's socioemotional selectivity theory, we predict that emotionally meaningful teams are prioritized when occupational future time perspective (OFTP) is perceived as limited. Building and expanding on studies outside of the work context, we expected that older as compared to younger workers prefer more familiar teams, and that this effect is mediated by workers' OFTP. Moreover, we assumed that experimentally manipulated OFTP can change such team preferences. The hypotheses were tested in an online scenario study using three experimental conditions (within-person design). Four hundred and fifty-four workers (57% female, age M = 45.98, SD = 11.46) were asked to choose between a familiar and a new team in three consecutive trials: under an unspecified OFTP (baseline), under an expanded OFTP (amendment of retirement age), and under a restricted OFTP (insolvency of the current company). Whereas the baseline condition was always first, the order of the second and third conditions was randomized among participants. In the baseline condition, results showed the expected mediation effect of workers' OFTP on the relation between workers' age and preference for a familiar over a new team. Higher age was associated with more limited OFTP, which in turn was associated with higher preference for a familiar over a new team. Moreover, experimentally restricting OFTP increased preference for a familiar team over a new team regardless of workers' age, providing further evidence for the assumed causal processes and showing interesting avenues for practical interventions in occupational teams. PMID- 29018377 TI - Perceptual Sensitivity and Response to Strong Stimuli Are Related. AB - To shed new light on the long-standing debate about the (in)dependence of sensitivity to weak stimuli and overreactivity to strong stimuli, we examined the relation between these tendencies within the neurobehavioral framework of the Predictive and Reactive Control Systems (PARCS) theory (Tops et al., 2010, 2014). Whereas previous studies only considered overreactivity in terms of the individual tendency to experience unpleasant affect (punishment reactivity) resulting from strong sensory stimulation, we also took the individual tendency to experience pleasant affect (reward reactivity) resulting from strong sensory stimulation into account. According to PARCS theory, these temperamental tendencies overlap in terms of high reactivity toward stimulation, but oppose each other in terms of the response orientation (approach or avoid). PARCS theory predicts that both types of reactivity to strong stimuli relate to sensitivity to weak stimuli, but that these relationships are suppressed due to the opposing relationship between reward and punishment reactivity. We measured punishment and reward reactivity to strong stimuli and sensitivity to weak stimuli using scales from the Adult Temperament Questionnaire (Evans and Rothbart, 2007). Sensitivity was also measured more objectively using the masked auditory threshold. We found that sensitivity to weak stimuli (both self-reported and objectively assessed) was positively associated with self-reported punishment and reward reactivity to strong stimuli, but only when these reactivity measures were controlled for each other, implicating a mutual suppression effect. These results are in line with PARCS theory and suggest that sensitivity to weak stimuli and overreactivity are dependent, but this dependency is likely to be obscured if punishment and reward reactivity are not both taken into account. PMID- 29018379 TI - Word Order and Voice Influence the Timing of Verb Planning in German Sentence Production. AB - Theories of incremental sentence production make different assumptions about when speakers encode information about described events and when verbs are selected, accordingly. An eye tracking experiment on German testing the predictions from linear and hierarchical incrementality about the timing of event encoding and verb planning is reported. In the experiment, participants described depictions of two-participant events with sentences that differed in voice and word order. Verb-medial active sentences and actives and passives with sentence-final verbs were compared. Linear incrementality predicts that sentences with verbs placed early differ from verb-final sentences because verbs are assumed to only be planned shortly before they are articulated. By contrast, hierarchical incrementality assumes that speakers start planning with relational encoding of the event. A weak version of hierarchical incrementality assumes that only the action is encoded at the outset of formulation and selection of lexical verbs only occurs shortly before they are articulated, leading to the prediction of different fixation patterns for verb-medial and verb-final sentences. A strong version of hierarchical incrementality predicts no differences between verb medial and verb-final sentences because it assumes that verbs are always lexically selected early in the formulation process. Based on growth curve analyses of fixations to agent and patient characters in the described pictures, and the influence of character humanness and the lack of an influence of the visual salience of characters on speakers' choice of active or passive voice, the current results suggest that while verb planning does not necessarily occur early during formulation, speakers of German always create an event representation early. PMID- 29018378 TI - Contextualized Contribution of Kindness to Favorable Goal- and Circumstantial Driven Neuropsychological Regulation. AB - Kindness involves care and non-judgmental understanding toward someone. As a prosocial inclination, kindness would increase the possibility of favorable interaction with the environment, with a successful adjustment of one's response in novel or challenging circumstances, taking into account rules or goals. This adjustment ability is commonly referred to as executive functions, dependent on the prefrontal and parietal functioning, still under development during late adolescence. This study aimed to investigate if kindness would relate with the executive functions. If so, it would correlate more with measures of self regulation, mainly dependent on the medial prefrontal corticosubcortical circuits. Also, among self-regulating processes, kindness would be more associated with autonomic responses-choices guided by one's understanding/intention - than with adaptive responses-changes on one's choices triggered by unfavorable circumstances. A sample of 46 (31 female; 18 to 21 years old) healthy college students from the University of the State of Rio de Janeiro attended a clinical interview and a comprehensive neuropsychological assessment. Kindness was measured by the Compassion Scale subscore. Generalized non-linear models for each neuropsychological variable were executed on R, followed by an estimation of weighted parameters for each factor. Significant models which included kindness (weighted parameter Pc > 74) and all of their psychosocial or sociodemographic factors on their maximum expression (Pc > 74) were identified. In a contextualized joint influence with other psychosocial and sociodemographic factors, kindness fits equally goal- and circumstantial- self-regulation, as well as integrative organization of information. Kindness is a principle that optimizes a refreshing and prosocial interaction with the environment. As it anticipates sharing and cooperation behaviors, it might have a primordial function on individual and social development. PMID- 29018380 TI - College Binge Drinking Associated with Decreased Frontal Activation to Negative Emotional Distractors during Inhibitory Control. AB - The transition to college is associated with an increase in heavy episodic alcohol use, or binge drinking, during a time when the prefrontal cortex and prefrontal-limbic circuitry continue to mature. Traits associated with this immaturity, including impulsivity in emotional contexts, may contribute to risky and heavy episodic alcohol consumption. The current study used blood oxygen level dependent (BOLD) multiband functional magnetic resonance imaging (fMRI) to assess brain activation during a task that required participants to ignore background images with positive, negative, or neutral emotional valence while performing an inhibitory control task (Go-NoGo). Subjects were 23 college freshmen (seven male, 18-20 years) who engaged in a range of drinking behavior (past 3 months' binge episodes range = 0-19, mean = 4.6, total drinks consumed range = 0-104, mean = 32.0). Brain activation on inhibitory trials (NoGo) was contrasted between negative and neutral conditions and between positive and neutral conditions using non-parametric testing (5000 permutations) and cluster-based thresholding (z = 2.3), p <= 0.05 corrected. Results showed that a higher recent incidence of binge drinking was significantly associated with decreased activation of dorsolateral prefrontal cortex (DLPFC), dorsomedial prefrontal cortex (DMPFC), and anterior cingulate cortex (ACC), brain regions strongly implicated in executive functioning, during negative relative to neutral inhibitory trials. No significant associations between binge drinking and brain activation were observed for positive relative to neutral images. While task performance was not significantly associated with binge drinking in this sample, subjects with heavier recent binge drinking showed decreased recruitment of executive control regions under negative versus neutral distractor conditions. These findings suggest that in young adults with heavier recent binge drinking, processing of negative emotional images interferes more with inhibitory control neurocircuitry than in young adults who do not binge drink often. This pattern of altered frontal lobe activation associated with binge drinking may serve as an early marker of risk for future self-regulation deficits that could lead to problematic alcohol use. These findings underscore the importance of understanding the impact of emotion on cognitive control and associated brain functioning in binge drinking behaviors among young adults. PMID- 29018382 TI - How Native Prosody Affects Pitch Processing during Word Learning in Limburgian and Dutch Toddlers and Adults. AB - In this study, Limburgian and Dutch 2.5- to 4-year-olds and adults took part in a word learning experiment. Following the procedure employed by Quam and Swingley (2010) and Singh et al. (2014), participants learned two novel word-object mappings. After training, word recognition was tested in correct pronunciation (CP) trials and mispronunciation (MP) trials featuring a pitch change. Since Limburgian is considered a restricted tone language, we expected that the pitch change would hinder word recognition in Limburgian, but not in non-tonal Dutch listeners. Contrary to our expectations, both Limburgian and Dutch children appeared to be sensitive to pitch changes in newly learned words, indicated by a significant decrease in target fixation in MP trials compared to CP trials. Limburgian and Dutch adults showed very strong naming effects in both trial types. The results are discussed against the background of the influence of the native prosodic system. PMID- 29018383 TI - Study Protocol for the Preschooler Regulation of Emotional Stress (PRES) Procedure. AB - Background: Emotional stress regulation (ESR) rapidly develops during the first months of age and includes different behavioral strategies which largely contribute to children's behavioral and emotional adjustment later in life. The assessment of ESR during the first years of life is critical to identify preschool children who are at developmental risk. Although ESR is generally included in larger temperament batteries [e.g., the Laboratory Temperament Assessment Battery (Lab-TAB)], there is no standardized observational procedure to specifically assess and measure ESR in preschool aged children. Aim: Here, we describe the development of an observational procedure to assess ESR in preschool aged children [i.e., the Preschooler Regulation of Emotional Stress (PRES) Procedure] and the related coding system. Methods: Four Lab-TAB emotional stress episodes (i.e., the Stranger, the Perfect Circle, the Missing Sticker, and the Transparent Box) have been selected. Independent coders developed a list of ESR codes resulting in two general indexes (i.e., active engagement and stress level) and five specific indexes (i.e., anger, control, fear, inhibition, sadness). Finally, specific actions have been planned to assess the validity and the coding system reliability of PRES procedure. Ethics and Dissemination: The study has been approved by the Ethical Committee of the Scientific Institute IRCCS Eugenio Medea, Bosisio Parini (Italy). The PRES validation and reliability assessment as well as its use with healthy and at-risk populations of preschool children will be object of future scientific publications and international conference presentations. PMID- 29018385 TI - Editorial: Theoretical Issues on Sensory Perception-Approaches from Philosophy, Psychology, and Neuroscience. PMID- 29018386 TI - Beyond Likeability: Investigating Social Interactions with Artificial Agents and Objective Metrics. PMID- 29018384 TI - Attentional Control and Fear Extinction in Subclinical Fear: An Exploratory Study. AB - Attentional control (AC) and fear extinction learning are known to be involved in pathological anxiety. In this study we explored whether individual differences in non-emotional AC were associated with individual differences in the magnitude and gradient of fear extinction (learning and recall). In 50 individuals with fear of spiders, we collected measures of non-emotional AC by means of self-report and by assessing the functioning of the major attention networks (executive control, orienting, and alerting). The participants then underwent a paradigm assessing fear extinction learning and extinction recall. The two components of the orienting network functioning (costs and benefits) were significantly associated with fear extinction gradient over and above the effects of trait anxiety. Specifically, participants with enhanced orienting costs (i.e., difficulties in disengaging attention from cues not relevant for the task) showed faster extinction learning, while those with enhanced orienting benefits (i.e., attention facilitated by valid cues) exhibited faster extinction recall as measured by fear-potentiated startle and Unconditioned Stimulus expectancies, respectively. Our findings suggest that, in non-emotional conditions, the orienting component of attention may be predictive of fear extinction. They also show that the use of fear extinction gradients and the exploration of individual differences in non-emotional AC (using performance-based measures of attentional network functioning) can provide a better understanding of individual differences in fear learning. Our findings also may help to understand differences in exposure therapy outcomes. PMID- 29018387 TI - The Role of Attention Shifting in Orthographic Competencies: Cross-Sectional Findings from 1st, 3rd, and 8th Grade Students. AB - Attention shifting refers to one core component of executive functions, a set of higher-order cognitive processes that predict different aspects of academic achievement. To date, few studies have investigated the role of attention shifting in orthographic competencies during middle childhood and early adolescence. In the present study, 69 first-grade, 121 third-grade, and 85 eighth grade students' attention shifting was tested with a computer version of the Dimensional Change Card Sort (DCCS; Zelazo, 2006). General spelling skills and specific writing and spelling strategies were assessed with the Hamburger Writing Test (May, 2002). Results suggested associations between attention shifting and various orthographic competencies that differ across age groups and by sex. Across all age groups, better attention shifting was associated with less errors in applying alphabetical strategies. In third graders, better attention shifting was furthermore related to better general spelling skills and less errors in using orthographical strategies. In this age group, associations did not differ by sex. Among first graders, attention shifting was negatively related to general spelling skills, but only for boys. In contrast, attention shifting was positively related to general spelling skills in eighth graders, but only for girls. Finally, better attention shifting was associated with less case-related errors in eighth graders, independent of students' sex. In sum, the data provide insight into both variability and consistency in the pattern of relations between attention shifting and various orthographic competencies among elementary and middle school students. PMID- 29018381 TI - The Role of Working Memory for Cognitive Control in Anorexia Nervosa versus Substance Use Disorder. AB - Prefrontal cortex executive functions, such as working memory (WM) interact with limbic processes to foster impulse control. Such an interaction is referred to in a growing body of publications by terms such as cognitive control, cognitive inhibition, affect regulation, self-regulation, top-down control, and cognitive emotion interaction. The rising trend of research into cognitive control of impulsivity, using various related terms reflects the importance of research into impulse control, as failure to employ cognitions optimally may eventually result in mental disorder. Against this background, we take a novel approach using an impulse control spectrum model - where anorexia nervosa (AN) and substance use disorder (SUD) are at opposite extremes - to examine the role of WM for cognitive control. With this aim, we first summarize WM processes in the healthy brain in order to frame a systematic review of the neuropsychological, neural and genetic findings of AN and SUD. In our systematic review of WM/cognitive control, we found n = 15 studies of AN with a total of n = 582 AN and n = 365 HC participants; and n = 93 studies of SUD with n = 9106 SUD and n = 3028 HC participants. In particular, we consider how WM load/capacity may support the neural process of excessive epistemic foraging (cognitive sampling of the environment to test predictions about the world) in AN that reduces distraction from salient stimuli. We also consider the link between WM and cognitive control in people with SUD who are prone to 'jumping to conclusions' and reduced epistemic foraging. Finally, in light of our review, we consider WM training as a novel research tool and an adjunct to enhance treatment that improves cognitive control of impulsivity. PMID- 29018388 TI - EMDR beyond PTSD: A Systematic Literature Review. AB - Background: Eye Movement Desensitization and Reprocessing (EMDR) is a psychotherapeutic approach that has demonstrated efficacy in the treatment of Post-traumatic Stress Disorder (PTSD) through several randomized controlled trials (RCT). Solid evidence shows that traumatic events can contribute to the onset of severe mental disorders and can worsen their prognosis. The aim of this systematic review is to summarize the most important findings from RCT conducted in the treatment of comorbid traumatic events in psychosis, bipolar disorder, unipolar depression, anxiety disorders, substance use disorders, and chronic back pain. Methods: Using PubMed, ScienceDirect, and Scopus, we conducted a systematic literature search of RCT studies published up to December 2016 that used EMDR therapy in the mentioned psychiatric conditions. Results: RCT are still scarce in these comorbid conditions but the available evidence suggests that EMDR therapy improves trauma-associated symptoms and has a minor effect on the primary disorders by reaching partial symptomatic improvement. Conclusions: EMDR therapy could be a useful psychotherapy to treat trauma-associated symptoms in patients with comorbid psychiatric disorders. Preliminary evidence also suggests that EMDR therapy might be useful to improve psychotic or affective symptoms and could be an add-on treatment in chronic pain conditions. PMID- 29018389 TI - Measuring Depression in a Non-Western War-Affected Displaced Population: Measurement Equivalence of the Beck Depression Inventory. AB - Depression is commonly seen in survivors of conflict and disaster across the world. There is a dearth of research on the validity of commonly used measures of depression in these populations. Measurements of depression that are used in multiple contexts need to meet measurement equivalence, i.e., the instrument measures the same construct in the same manner across different groups. The Beck Depression Inventory (BDI) was administered to female trauma survivors in the United States (n = 268) and female survivors of war in Sri Lanka (n = 149). Three metrics of measurement equivalence-structural, metric, and scalar-were examined. Two- and three-factor structures of the BDI that have been identified in other populations did not provide a good fit for our data. However, a bifactor model revealed a similar general distress dimension across populations, but dissimilar secondary dimensions or subfactors. The Sri Lankan subfactor comprised of predominantly somatic symptoms and the United States subfactor comprised of cognitive and somatic symptoms. While intercepts of individual BDI items differed, their differences seem to be offsetting. Total BDI scores across these two populations are roughly comparable, although caution is recommended when interpreting them. Making comparisons on subscales is not recommended. PMID- 29018390 TI - Ego Depletion in Real-Time: An Examination of the Sequential-Task Paradigm. AB - Current research into self-control that is based on the sequential task methodology is currently at an impasse. The sequential task methodology involves completing a task that is designed to tax self-control resources which in turn has carry-over effects on a second, unrelated task. The current impasse is in large part due to the lack of empirical research that tests explicit assumptions regarding the initial task. Five studies test one key, untested assumption underpinning strength (finite resource) models of self-regulation: Performance will decline over time on a task that depletes self-regulatory resources. In the aftermath of high profile replication failures using a popular letter-crossing task and subsequent criticisms of that task, the current studies examined whether depletion effects would occur in real time using letter-crossing tasks that did not invoke habit-forming and breaking, and whether these effects were moderated by administration type (paper and pencil vs. computer administration). Sample makeup and sizes as well as response formats were also varied across the studies. The five studies yielded a clear and consistent pattern of increasing performance deficits (errors) as a function of time spent on task with generally large effects and in the fifth study the strength of negative transfer effects to a working memory task were related to individual differences in depletion. These results demonstrate that some form of depletion is occurring on letter-crossing tasks though whether an internal regulatory resource reservoir or some other factor is changing across time remains an important question for future research. PMID- 29018392 TI - Using Procedure Based on Item Response Theory to Evaluate Classification Consistency Indices in the Practice of Large-Scale Assessment. AB - In spite of the growing interest in the methods of evaluating the classification consistency (CC) indices, only few researches are available in the field of applying these methods in the practice of large-scale educational assessment. In addition, only few studies considered the influence of practical factors, for example, the examinee ability distribution, the cut score location and the score scale, on the performance of CC indices. Using the newly developed Lee's procedure based on the item response theory (IRT), the main purpose of this study is to investigate the performance of CC indices when practical factors are taken into consideration. A simulation study and an empirical study were conducted under comprehensive conditions. Results suggested that with negatively skewed distribution, the CC indices were larger than with other distributions. Interactions occurred among ability distribution, cut score location, and score scale. Consequently, Lee's IRT procedure is reliable to be used in the field of large-scale educational assessment, and when reporting the indices, it should be treated with caution as testing conditions may vary a lot. PMID- 29018391 TI - The Presentation Location of the Reference Stimuli Affects the Left-Side Bias in the Processing of Faces and Chinese Characters. AB - For faces and Chinese characters, a left-side processing bias, in which observers rely more heavily on information conveyed by the left side of stimuli than the right side of stimuli, has been frequently reported in previous studies. However, it remains unclear whether this left-side bias effect is modulated by the reference stimuli's location. The present study adopted the chimeric stimuli task to investigate the influence of the presentation location of the reference stimuli on the left-side bias in face and Chinese character processing. The results demonstrated that when a reference face was presented in the left visual field of its chimeric images, which are centrally presented, the participants showed a preference higher than the no-bias threshold for the left chimeric face; this effect, however, was not observed in the right visual field. This finding indicates that the left-side bias effect in face processing is stronger when the reference face is in the left visual field. In contrast, the left-side bias was observed in Chinese character processing when the reference Chinese character was presented in either the left or right visual field. Together, these findings suggest that although faces and Chinese characters both have a left-side processing bias, the underlying neural mechanisms of this left-side bias might be different. PMID- 29018393 TI - Intergenerational Transmission of Resilience? Sense of Coherence Is Associated between Lithuanian Survivors of Political Violence and Their Adult Offspring. AB - Little is known about intergeneration effects on mental health in the families of survivors of political oppression of communist regime in Central and Eastern Europe. We aimed to explore post-traumatic stress in the second generation of the Lithuanian survivors of political violence, and analyze links between parental and adult offsprings' sense of coherence in the families exposed to political violence during the oppressive communist regime in Lithuania. A total of 110 matched pairs of communist regime political violence survivors (mean age = 73.22 years) and their adult offspring (mean age = 44.65 years) participated in this study. Life-time traumatic experiences and sense of coherence were measured in both parents and their offspring. Post-traumatic stress symptoms were assessed in the second generation of survivors. We found a high vulnerability in the second generation of the Lithuanian families of political violence survivors, with a 29% of probable PTSD in the second generation based on self-report measures. A significant positive correlation between parental and adult offsprings' sense of coherence was found. Post-traumatic stress symptoms were associated negatively with a sense of coherence in the second generation. Our study indicates the links between parental and the second generation's sense of coherence in the families of survivors of political violence. The study raises broader questions about the intergenerational aspects of resilience. Further studies are needed to explore the links between parental and child sense of coherence in other samples. PMID- 29018394 TI - Distress Levels among Parents of Active Duty Soldiers during Wartime. AB - Objective: Military service is a highly stressful period both for the soldiers serving and for their parents. Surprisingly, parents' experience has been mostly ignored in the research. This study's goal is to shed light on the experience and distress levels of parents of active duty combat soldiers during Operation Protective Edge, a military operation carried out by the Israel Defense Forces during July and August of 2014. Methods: During the advanced stages of the operation, 69 parents of Israeli male combat soldiers (55 mothers and 14 fathers) completed an online survey measuring symptoms of Posttraumatic Stress Disorder (PTSD-Checklist-5) and distress (Brief Symptom Inventory-18). Participants were recruited using a convenience sample, by posting ads on the public Facebook pages of the researchers and of the groups dedicated to parents of Israeli soldiers. Results: Parents' depression and anxiety symptom levels were higher than depression and anxiety symptom levels of the adult community norms in Israel. General distress rates of parents were similar to those presented by adults in southern Israel who were exposed for 7 years to the ongoing threat of daily rocket fire from Gaza, and higher than rates of a non-threatened Israeli population. Finally, 20.2% of the parents presented PTSD-like symptoms, a higher percentage than the probable PTSD diagnosis rates that were found in the general population in Israel during previous terror waves. Conclusion: This study provides preliminary evidence of soldiers' parents' distress and indicates the need for a better understanding of the impact of military service on soldiers' parents. PMID- 29018395 TI - Emotional Reactions Mediate the Effect of Music Listening on Creative Thinking: Perspective of the Arousal-and-Mood Hypothesis. AB - This study examined the effect of music listening on creative thinking through the lens of the arousal-and-mood hypothesis, which posits that emotional reactions (i.e., arousal and valence) mediate the effect of music listening on cognitive functioning. Participants were randomly assigned to three groups: a positive music group (n = 198), a negative music group (n = 195), and a control group (n = 191). Creative thinking and emotional reactions were assessed with the Test for Creative Thinking-Drawing Production and the Affect Grid, respectively. The results showed that both positively and negatively arousing music enhanced creative thinking. The results further revealed that arousal, regardless of valence, significantly mediated the music-creativity relationship. This study enriches the research on the arousal-and-mood hypothesis by (1) providing direct empirical testing on the mediating roles of emotional reactions; (2) including both positively and negatively arousing music in the study design; and (3) identifying that only arousal, and not valence, was a significant mediator in the music-creativity link. PMID- 29018396 TI - The Influence of Closeness Centrality on Lexical Processing. AB - The present study examined how the network science measure known as closeness centrality (which measures the average distance between a node and all other nodes in the network) influences lexical processing. In the mental lexicon, a word such as CAN has high closeness centrality, because it is close to many other words in the lexicon. Whereas, a word such as CURE has low closeness centrality because it is far from other words in the lexicon. In an auditory lexical decision task (Experiment 1) participants responded more quickly to words with high closeness centrality. In Experiment 2 an auditory lexical decision task was again used, but with a wider range of stimulus characteristics. Although, there was no main effect of closeness centrality in Experiment 2, an interaction between closeness centrality and frequency of occurrence was observed on reaction times. The results are explained in terms of partial activation gradually strengthening over time word-forms that are centrally located in the phonological network. PMID- 29018397 TI - Short-term Beneficial Effects of 12 Sessions of Neurofeedback on Avoidant Personality Accentuation in the Treatment of Alcohol Use Disorder. AB - This study evaluated the effects of alpha/theta neurofeedback on Clinical Personality Accentuations in individuals with alcohol use disorder. Twenty-five males were investigated using a pre-test/post-test design with a waiting-list control group. Participants were randomly assigned either to an experimental group (n = 13) receiving 12 sessions of neurofeedback twice a week as a treatment adjunct over a period of 6 weeks, or to a control group (n = 12) receiving treatment as usual. The Inventory of Clinical Personality Accentuations and the NEO-Five-Factor Inventory were applied at pre- and post-test. The neurofeedback protocol focused on enhancement of the EEG alpha (8-12 Hz) and theta (4-7 Hz) and used a visual feedback paradigm. Analyses of covariance showed improvements in Avoidant Personality Accentuation within the experimental group. Our data suggest that 12 sessions of this neurofeedback intervention might be effective in reducing avoidant and stress-related personality traits in patients with alcohol use disorder. PMID- 29018398 TI - An Assessment of the Dimensionality and Factorial Structure of the Revised Paranormal Belief Scale. AB - Since its introduction, the Revised Paranormal Belief Scale (RPBS) has developed into a principal measure of belief in the paranormal. Accordingly, the RPBS regularly appears within parapsychological research. Despite common usage, academic debates continue to focus on the factorial structure of the RPBS and its psychometric integrity. Using an aggregated heterogeneous sample (N = 3,764), the present study tested the fit of 10 factorial models encompassing variants of the most commonly proposed solutions (seven, five, two, and one-factor) plus new bifactor alternatives. A comparison of competing models revealed a seven-factor bifactor solution possessed superior data-model fit (CFI = 0.945, TLI = 0.933, IFI = 0.945, SRMR = 0.046, RMSEA = 0.058), containing strong factor loadings for a general factor and weaker, albeit acceptable, factor loadings for seven subfactors. This indicated that belief in the paranormal, as measured by the RPBS, is best characterized as a single overarching construct, comprising several related, but conceptually independent subfactors. Furthermore, women reported significantly higher paranormal belief scores than men, and tests of invariance indicated that mean differences in gender are unlikely to reflect measurement bias. Results indicate that despite concerns about the content and psychometric integrity of the RPBS the measure functions well at both a global and seven factor level. Indeed, the original seven-factors contaminate alternative solutions. PMID- 29018399 TI - Therapeutic Interventions for Vascular Parkinsonism: A Systematic Review and Meta analysis. AB - BACKGROUND: Vascular parkinsonism (VP) is defined as the presence of parkinsonian syndrome, evidence of cerebrovascular disease, and an established relationship between the two disorders. However, the diagnosis of VP is problematic, particularly for the clinician confronted with moving from diagnosis to treatment. Given the different criteria used in the diagnosis of VP, the effectiveness of available therapeutic interventions for this disease are currently unknown. METHODS: To assess the clinical response of all published therapeutic interventions for VP that have been reported in the literature, we conducted a systematic review looking for VP subjects treated with any therapeutic intervention. To clarify the prevalence of responsiveness to levodopa among VP subjects, we conducted a meta-analysis of 17 observational studies retrieved with the search criteria of our review. Also, four studies were included in a second analysis to explore if nigrostriatal lesion affected the prevalence of levodopa response in VP subjects. Relevant articles were identified from MEDLINE, Scopus, and Web of Science published until June 2017. RESULTS: 436 non-duplicate citations were identified for screening, 107 articles were assessed for eligibility, and only 23 observational studies were included in this review. No randomized clinical trials were found. Four different therapies were found in the literature; among them, levodopa was the only one repetitively reported. The calculated event rate of levodopa response in VP subjects was of 0.304 [95% confidence interval (CI) of 0.230-0.388]. The overall odds ratio for good response to levodopa in VP with lesion in the nigrostriatal pathway vs. no lesion in the nigrostriatal pathway was 15.15 (95% CI: 5.2-44.17). CONCLUSION: Despite the lack of randomized controlled trials, results of this systematic review and meta-analysis show that VP subjects, as operationally defined here, have a low response rate to levodopa; nigrostriatal lesion could be used as a proxy predictor of levodopa response in VP subjects. Other therapies seem to be co adjuvant. Randomized controlled trials with a clear definition of VP are necessary to be able to assign positive or negative predictive values to available treatments and to recommend any of the therapeutic interventions for these subjects. PMID- 29018400 TI - Including a Lower-Extremity Component during Hand-Arm Bimanual Intensive Training does not Attenuate Improvements of the Upper Extremities: A Retrospective Study of Randomized Trials. AB - Hand-Arm Bimanual Intensive Therapy (HABIT) promotes hand function using intensive practice of bimanual functional and play tasks. This intervention has shown to be efficacious to improve upper-extremity (UE) function in children with unilateral spastic cerebral palsy (USCP). In addition to UE function deficits, lower-extremity (LE) function and UE-LE coordination are also impaired in children with USCP. Recently, a new intervention has been introduced in which the LE is simultaneously engaged during HABIT (Hand-Arm Bimanual Intensive Therapy Including Lower Extremities; HABIT-ILE). Positive effects of this therapy have been demonstrated for both the UE and LE function in children with USCP. However, it is unknown whether the addition of this constant LE component during a bimanual intensive therapy attenuates UE improvements observed in children with USCP. This retrospective study, based on multiple randomized protocols, aims to compare the UE function improvements in children with USCP after HABIT or HABIT ILE. This study included 86 children with USCP who received 90 h of either HABIT (n = 42) or HABIT-ILE (n = 44) as participants in previous studies. Children were assessed before, after, and 4-6 months after intervention. Primary outcomes were the ABILHAND-Kids and the Assisting Hand Assessment. Secondary measures included the Jebsen-Taylor Test of Hand Function, the Pediatric Evaluation of Disability Inventory [(PEDI); only the self-care functional ability domain] and the Canadian Occupational Performance Measure (COPM). Data analysis was performed using two way repeated-measures analysis of variance with repeated measures on test sessions. Both groups showed similar, significant improvements for all tests (test session effect p < 0.001; group * test session interaction p > 0.05) except the PEDI and COPM. Larger improvements on these tests were found for the HABIT ILE group (test session effect p < 0.001; group * test session interaction p < 0.05). These larger improvements may be explained by the constant simultaneous UE LE engagement observed during the HABIT-ILE intervention since many daily living activities included in the PEDI and the COPM goals involve the LE and, more specifically, UE-LE coordination. We conclude that UE improvements in children with USCP are not attenuated by simultaneous UE-LE engagement during intensive intervention. In addition, systematic LE engagement during bimanual intensive intervention (HABIT-ILE) leads to larger functional improvements in activities of daily living involving the LE. PMID- 29018401 TI - Risk Factors and Clinical Manifestations of Juxtacortical Small Lesions: A Neuroimaging Study. AB - BACKGROUND AND OBJECTIVE: White matter hyperintensities can be easily identified by brain imaging. Juxtacortical small lesion (JCSL) is a special type of white matter lesion, defined as no greater than 5 mm in diameter and adjacent to the cerebral cortex in location. We notice lately that JCSLs alone may be associated to various neurological symptoms. Here, we design the present study to determine the risk factors for JCSLs and their clinical manifestations in patients in our neurology clinic. METHODS: 206 participants suffered from neurological disorders and completed magnetic resonance imaging (MRI) examinations were divided into two groups: patients with JCSLs and patients without lesions on MRI. Meanwhile, 129 age- and sex-matched healthy volunteers were also recruited. Laboratory examinations and the phenotypes and distributions of the symptoms of the three groups were compared. RESULTS: The serum levels of apoB and homocysteine (HCY) were independently related to the appearance of JCSLs and HCY level was also associated with the number of JCSLs. Patients with JCSLs might present with headache, insomnia, and/or anxiety/depression, which were related with the anatomical locations of the lesions. CONCLUSION: These data suggest that JCSLs are symptomatic and might in result fromarteriole atherosclerosis, which should raise our attention. PMID- 29018402 TI - Preferential Impairment of the Contralesional Posterior Semicircular Canal in Internuclear Ophthalmoplegia. AB - BACKGROUND: The vertical vestibulo-ocular reflex (VOR) may be impaired in internuclear ophthalmoplegia (INO) as the medial longitudinal fasciculus (MLF) conveys VOR-signals from the vertical semicircular canals. It has been proposed that signals from the contralesional posterior semicircular canal (PSC) are exclusively transmitted through the MLF, while for the contralesional anterior canal other pathways exist. OBJECTIVE: Here, we aimed to characterize dysfunction in individual canals in INO-patients using the video-head-impulse test (vHIT) and to test the hypothesis of dissociated vertical canal impairment in INO. METHODS: Video-head-impulse testing and magnetic resonance imaging were obtained in 21 consecutive patients with unilateral (n = 16) or bilateral (n = 5) INO and 42 controls. VOR-gains and compensatory catch-up saccades were analyzed and the overall function (normal vs. impaired) of each semicircular canal was rated. RESULTS: In unilateral INO, largest VOR-gain reductions were noted in the contralesional PSC (0.55 +/- 0.11 vs. 0.89 +/- 0.08, p < 0.001), while in bilateral INO both posterior (0.43 +/- 0.11 vs. 0.89 +/- 0.08, p < 0.001) and anterior (0.58 +/- 0.19 vs. 0.88 +/- 0.09, p < 0.001) canals showed marked drops. Small, but significant VOR-gain reductions were also found in the other canals in unilateral and bilateral INO-patients. Impairment of overall canal function was restricted to the contralesional posterior canal in 60% of unilateral INO patients, while isolated involvement of the posterior canal was rare in bilateral INO-patients (20%). Reviewers correctly identified the INO-pattern in 15/21 (71%) patients and in all controls (sensitivity = 84.2% [95%-CI = 0.59.5-95.8]; specificity = 95.5% [95%-CI = 83.3-99.2]). CONCLUSION: Using a vHIT based overall rating of canal function, the correct INO-pattern could be identified with high accuracy. The predominant and often selective impairment of the contralesional posterior canal in unilateral INO further supports the role of the MLF in transmitting posterior canal signals. In patients with acute dizziness and abnormal vHIT-results, central pathologies such as INO should be considered as well, especially when the posterior canal is involved. PMID- 29018403 TI - Repulsive Guidance Molecule a Inhibits Angiogenesis by Downregulating VEGF and Phosphorylated Focal Adhesion Kinase In Vitro. AB - Repulsive guidance molecule a (RGMa) is a major neuron guidance factor in central nervous systems. We previously found that inhibition of RGMa could greatly enhance neural function rehabilitation in rats after MCAO/reperfusion. Neuron guidance factors are often regulators of angiogenesis. However, the effect of RGMa on angiogenesis and its mechanisms remain to be determined. Here, we investigated the effect of RGMa on endothelial cell (EC) proliferation, migration, tube formation, and cytoskeleton reassembly. The addition of recombinant RGMa significantly decreased the proliferation, migration, and tube formation of ECs. It also decreased the level of phosphorylated focal adhesion kinase (p-FAK Tyr397). Furthermore, the F-actin of the cytoskeleton assembly was obviously suppressed, with decreased filopodia and lamellipodia after the addition of RGMa. Knockout of neogenin or Unc5b significantly diminished RGMa's inhibition of EC migration, tube formation, and cytoskeleton reassembly. RGMa induced p-FAK (Tyr397) decrease was also abolished by knockout of neogenin or Unc5b. These results indicate that RGMa may be a negative regulator of angiogenesis through downregulating VEGF and p-FAK (Tyr397) via neogenin and Unc5b in vitro. PMID- 29018404 TI - Socioeconomic Outcome and Quality of Life in Adults after Status Epilepticus: A Multicenter, Longitudinal, Matched Case-Control Analysis from Germany. AB - BACKGROUND: There is a lack of data concerning socioeconomic outcome and quality of life (QoL) in patients after status epilepticus (SE) in Germany. PATIENTS AND METHODS: Adult patients treated between 2011 and 2015 due to SE at the university hospitals in Frankfurt, Greifswald, and Marburg were asked to fill out a questionnaire regarding long-term outcome of at least 3 months after discharge. The SE cohort consisted of 25.9% patients with an acute symptomatic, 42% with a remote symptomatic and previous epilepsy, 22.2% with a new-onset remote symptomatic, and 9.9% with other or unknown etiology. A matched case-control analysis was applied for comparison with patients with drug refractory epilepsy and seizure remission, both not previously affected by SE. RESULTS: A total of 81 patients (mean age: 58.7 +/- 18.0 years; 58% female) participated. A non refractory course was present in 59.3%, while 27.2% had a refractory SE (RSE) and 13.6% had a superrefractory SE (SRSE). Before admission, a favorable modified Rankin Scale (mRS) of 0-3 was found in 82.7% (67/81), deteriorating to 38.3% (31/81) (p = 0.003) at discharge. The majority returned home [51.9% (42/81)], 32.1% entered a rehabilitation facility, while 12.3% were transferred to a nursing home and 3.7% to another hospital. The overall mRS at follow-up did not change; 61.8% (45/74) reached an mRS of 0-3. In RSE and SRSE, the proportion with a favorable mRS increased from 45.5% at discharge to 70% at follow-up, while QoL was comparable to a non-refractory SE course. Matched epilepsy controls in seizure remission were treated with a lower mean number of anticonvulsants (1.3 +/- 0.7) compared to controls with drug refractory epilepsy (1.9 +/- 0.8; p < 0.001) or SE (1.9 +/- 1.1; p < 0.001). A major depression was found in 32.8% of patients with SE and in 36.8% of drug refractory epilepsy, but only in 20.3% of patients in seizure remission. QoL was reduced in all categories (QOLIE-31) in SE patients in comparison with patients in seizure remission, but was comparable to patients with drug refractory epilepsy. DISCUSSION: Patients after SE show substantial impairments in their QoL and daily life activities. However, in the long term, patients with RSE and SRSE had a relatively favorable outcome comparable to that of patients with a non-refractory SE course. This underlines the need for efficient therapeutic options in SE. PMID- 29018405 TI - Chimeric Peptide Tat-HA-NR2B9c Improves Regenerative Repair after Transient Global Ischemia. AB - Transient global ischemia (TGI) is a major public health problem, and it heightens the need of effective treatments. The present study was undertaken to investigate whether recombinant polypeptide Tat-HA-NR2B9c improves spatial learning and memory deficits in rats after TGI. Rats were subjected to 20-min ischemia induced by four-vessel occlusion (4-VO) method and daily injected with Tat-HA-NR2B9c (1.12 mg/kg) for 1 week. Tat-HA-NR2B9c increased CREB activity, upregulated B-cell lymphoma-2 (Bcl-2) expression after treated for 24 h. There was a significant increase in dendrite spine density in hippocampal CA1 region and BrdU-positive cells and BrdU/NeuN-positive cells in the dentate gyrus after Tat-HA-NR2B9c treatment, compared with ischemia group at postischemic day 28. Inhibition of the CREB activation by recombinant lentivirus, LV-CREB133-GFP, abolished the upregulation effects of Tat-HA-NR2B9c on Bcl-2 expression. Moreover, Tat-HA-NR2B9c improved the impaired spatial learning and memory ability in Morris water maze. These results suggest that Tat-HA-NR2B9c substantially ameliorated the TGI-induced loss of dendrite spine in hippocampal CA1, increased neurogenesis in dentate gyrus, and significantly improved cognitive abilities by the CREB pathway in rats after transient global cerebral ischemia. It may be served as a treatment for TGI. PMID- 29018406 TI - Editorial: Karolinska Institutet 200-Year Anniversary Symposium on Injuries to the Spinal Cord and Peripheral Nervous System-An Update on Recent Advances in Regenerative Neuroscience. PMID- 29018407 TI - Dose-Dependent and Lasting Influences of Intranasal Vasopressin on Face Processing in Men. AB - Arginine vasopressin (AVP) and related peptides have diverse effects on social behaviors in vertebrates, sometimes promoting affiliative interactions and sometimes aggressive or antisocial responses. The type of influence, in at least some species, depends on social contexts, including the sex of the individuals in the interaction and/or on the levels of peptide within brain circuits that control the behaviors. To determine if AVP promotes different responses to same- and other-sex faces in men, and if those effects are dose dependent, we measured the effects of two doses of AVP on subjective ratings of male and female faces. We also tested if any influences persist beyond the time of drug delivery. When AVP was administered intranasally on an initial test day, 20 IU was associated with decreased social assessments relative to placebo and 40 IU, and some of the effects persisted beyond the initial drug delivery and appeared to generalize to novel faces on subsequent test days. In single men, those influences were most pronounced, but not exclusive, for male faces, whereas in coupled men they were primarily associated with responses to female faces. Similar influences were not observed if AVP was delivered after placebo on a second test day. In a preliminary analysis, the differences in social assessments observed between men who received 20 and 40 IU, which we suggest primarily reflect lowered social assessments induced by the lower dose, appeared most pronounced in subjects who carry what has been identified as a risk allele for the V1a receptor gene. Together, these results suggest that AVP's effects on face processing, and possibly other social responses, differ according to dose, depend on relationship status, and may be more prolonged than previously recognized. PMID- 29018408 TI - Levels of Hepatic Activating Transcription Factor 6 and Caspase-3 Are Downregulated in Mice after Excessive Training. AB - Recently, we demonstrated that different running overtraining (OT) protocols with the same external load, but performed downhill (OTR/down), uphill (OTR/up), and without inclination (OTR), led to hepatic fat accumulation. As the disruption of endoplasmic reticulum (ER) homeostasis is linked to animal models of fatty liver disease, we investigated the effects of these OT models on the proteins related to ER stress (i.e., BiP, inositol-requiring enzyme 1, protein kinase RNA-like endoplasmic reticulum kinase, eIF2alpha, ATF6beta, and glucose-regulated protein 94) and apoptosis (C/EBP-homologous protein, Caspase-3, 4, and 12, Bax, and tumor necrosis factor receptor-associated factor 2) in livers of C57BL/6 mice. Also, aerobic training can attenuate cardiac ER stress and improve exercise capacity. Therefore, we investigated whether the decrease in performance induced by our OT protocols is linked to ER stress and apoptosis in mouse hearts. The rodents were divided into six groups: naive (N, sedentary mice), control (CT, sedentary mice submitted to the performance evaluations), trained (TR), OTR/down, OTR/up, and OTR groups. Rotarod, incremental load, exhaustive, and grip force tests were used to evaluate performance. After the grip force test, the livers and cardiac muscles (i.e., left ventricle) were removed and used for immunoblotting. All of the OT protocols led to similar responses in the performance parameters and displayed significantly lower hepatic ATF6beta values compared to the N group. The OTR/down group exhibited lower liver cleaved caspase-3 values compared to the CT group. However, the other proteins related to ER stress and apoptosis were not modulated. Also, the cardiac proteins related to ER stress and apoptosis were not modulated in the experimental groups. In conclusion, the OT protocols decreased the levels of hepatic ATF6beta, and the OTR/down group decreased the levels of hepatic cleaved caspase-3. Also, the decrease in performance induced by our OT models is not associated with ER stress and apoptosis in mice hearts. PMID- 29018409 TI - Innate Viral Receptor Signaling Determines Type 1 Diabetes Onset. AB - Heritable susceptibility of the autoimmune disorder, type 1 diabetes (T1D), only partially equates for the incidence of the disease. Significant evidence attributes several environmental stressors, such as vitamin D deficiency, gut microbiome, dietary antigens, and most notably virus infections in triggering the onset of T1D in these genetically susceptible individuals. Extensive epidemiological and clinical studies have provided credibility to this causal relationship. Infection by the enterovirus, coxsackievirus B, has been closely associated with onset of T1D and is considered a significant etiological agent for disease induction. Recognition of viral antigens via innate pathogen recognition receptors induce inflammatory events which contribute to autoreactivity of pancreatic self-antigens and ultimately the destruction of insulin-secreting beta cells. The activation of these specific innate pathways and expression of inflammatory molecules, including type I and III interferon, prime the immune system to elicit either a protective regulatory response or a diabetogenic effector response. Therefore, sensing of viral antigens by retinoic acid-inducible gene I-like receptors and toll-like receptors may be detrimental to inducing autoreactivity initiated by viral stress and resulting in T1D. PMID- 29018411 TI - The Oleaginous Yeast Meyerozyma guilliermondii BI281A as a New Potential Biodiesel Feedstock: Selection and Lipid Production Optimization. AB - A high throughput screening (HTS) methodology for evaluation of cellular lipid content based on Nile red fluorescence reads using black background 96-wells test plates and a plate reader equipment allowed the rapid intracellular lipid estimation of strains from a Brazilian phylloplane yeast collection. A new oleaginous yeast, Meyerozyma guilliermondii BI281A, was selected, for which the gravimetric determination of total lipids relative to dry weight was 52.38% for glucose or 34.97% for pure glycerol. The lipid production was optimized obtaining 108 mg/L of neutral lipids using pure glycerol as carbon source, and the strain proved capable of accumulating oil using raw glycerol from a biodiesel refinery. The lipid profile showed monounsaturated fatty acids (MUFA) varying between 56 or 74% in pure or raw glycerol, respectively. M. guilliermondii BI281A bears potential as a new biodiesel feedstock. PMID- 29018410 TI - Next-Generation Beneficial Microbes: The Case of Akkermansia muciniphila. AB - Metabolic disorders associated with obesity and cardiometabolic disorders are worldwide epidemic. Among the different environmental factors, the gut microbiota is now considered as a key player interfering with energy metabolism and host susceptibility to several non-communicable diseases. Among the next-generation beneficial microbes that have been identified, Akkermansia muciniphila is a promising candidate. Indeed, A. muciniphila is inversely associated with obesity, diabetes, cardiometabolic diseases and low-grade inflammation. Besides the numerous correlations observed, a large body of evidence has demonstrated the causal beneficial impact of this bacterium in a variety of preclinical models. Translating these exciting observations to human would be the next logic step and it now appears that several obstacles that would prevent the use of A. muciniphila administration in humans have been overcome. Moreover, several lines of evidence indicate that pasteurization of A. muciniphila not only increases its stability but more importantly increases its efficacy. This strongly positions A. muciniphila in the forefront of next-generation candidates for developing novel food or pharma supplements with beneficial effects. Finally, a specific protein present on the outer membrane of A. muciniphila, termed Amuc_1100, could be strong candidate for future drug development. In conclusion, as plants and its related knowledge, known as pharmacognosy, have been the source for designing drugs over the last century, we propose that microbes and microbiomegnosy, or knowledge of our gut microbiome, can become a novel source of future therapies. PMID- 29018412 TI - A Novel Lactobacilli-Based Teat Disinfectant for Improving Bacterial Communities in the Milks of Cow Teats with Subclinical Mastitis. AB - Teat disinfection pre- and post-milking is important for the overall health and hygiene of dairy cows. The objective of this study was to evaluate the efficacy of a novel probiotic lactobacilli-based teat disinfectant based on changes in somatic cell count (SCC) and profiling of the bacterial community. A total of 69 raw milk samples were obtained from eleven Holstein-Friesian dairy cows over 12 days of teat dipping in China. Single molecule, real-time sequencing technology (SMRT) was employed to profile changes in the bacterial community during the cleaning protocol and to compare the efficacy of probiotic lactic acid bacteria (LAB) and commercial teat disinfectants. The SCC gradually decreased following the cleaning protocol and the SCC of the LAB group was slightly lower than that of the commercial disinfectant (CD) group. Our SMRT sequencing results indicate that raw milk from both the LAB and CD groups contained diverse microbial populations that changed over the course of the cleaning protocol. The relative abundances of some species were significantly changed during the cleaning process, which may explain the observed bacterial community differences. Collectively, these results suggest that the LAB disinfectant could reduce mastitis-associated bacteria and improve the microbial environment of the cow teat. It could be used as an alternative to chemical pre- and post-milking teat disinfectants to maintain healthy teats and udders. In addition, the Pacific Biosciences SMRT sequencing with the full-length 16S ribosomal RNA gene was shown to be a powerful tool for monitoring changes in the bacterial population during the cleaning protocol. PMID- 29018413 TI - Effect of the Ethyl Acetate Fraction of Eugenia uniflora on Proteins Global Expression during Morphogenesis in Candida albicans. AB - Candida albicans is able to switch from yeast to hyphal growth and this is an essential step for tissue invasion and establishment of infection. Due to the limited drug arsenal used to treat fungal infections and the constant emergence of resistant strains, it is important to search for new therapeutic candidates. Therefore, this study aimed to investigate by proteomic analysis the role of a natural product (Eugenia uniflora) in impairing hypha formation in C. albicans. We also tested the potential action of E. uniflora to prevent and treat oral candidiasis induced in a murine model of oral infection and the ability of polymorphonuclear neutrophils to phagocytize C. albicans cells treated with the ethyl acetate fraction of the extract. We found that this fraction greatly reduced hypha formation after morphogenesis induction in the presence of serum. Besides, several proteins were differentially expressed in cells treated with the fraction. Surprisingly, the ethyl acetate fraction significantly reduced phagocytosis in C. albicans (Mean 120.36 +/- 36.71 yeasts/100 PMNs vs. 44.68 +/- 19.84 yeasts/100 PMNs). Oral candidiasis was attenuated when C. albicans cells were either pre-incubated in the presence of E. uniflora or when the fraction was applied to the surface of the oral cavity after infection. These results were consistent with the reduction in CFU counts (2.36 vs. 1.85 Log10 CFU/ml) and attenuation of tissue damage observed with histopathological analysis of animals belonging to treated group. We also observed shorter true hyphae by direct examination and histopathological analysis, when cells were treated with the referred natural product. The E. uniflora ethyl acetate fraction was non-toxic to human cells. E. uniflora may act on essential proteins mainly related to cellular structure, reducing the capacity of filamentation and attenuating infection in a murine model, without causing any toxic effect on human cells, suggesting that it may be a future therapeutic alternative for the treatment of Candida infections. PMID- 29018414 TI - Development of a Click Beetle Luciferase Reporter System for Enhanced Bioluminescence Imaging of Listeria monocytogenes: Analysis in Cell Culture and Murine Infection Models. AB - Listeria monocytogenes is a Gram-positive facultative intracellular pathogen that is widely used as a model organism for the analysis of infection biology. In this context, there is a current need to develop improved reporters for enhanced bioluminescence imaging (BLI) of the pathogen in infection models. We have developed a click beetle red luciferase (CBR-luc) based vector (pPL2CBRopt) expressing codon optimized CBR-luc under the control of a highly expressed Listerial promoter (PHELP) for L. monocytogenes and have compared this to a lux based system expressing bacterial luciferase for BLI of the pathogen using in vitro growth experiments and in vivo models. The CBR-luc plasmid stably integrates into the L. monocytogenes chromosome and can be used to label field isolates and laboratory strains of the pathogen. Growth experiments revealed that CBR-luc labeled L. monocytogenes emits a bright signal in exponential phase that is maintained during stationary phase. In contrast, lux-labeled bacteria produced a light signal that peaked during exponential phase and was significantly reduced during stationary phase. Light from CBR-luc labeled bacteria was more efficient than the signal from lux-labeled bacteria in penetrating an artificial tissue depth assay system. A cell invasion assay using C2Bbe1 cells and a systemic murine infection model revealed that CBR-luc is suited to BLI approaches and demonstrated enhanced sensitivity relative to lux in the context of Listeria infection models. Overall, we demonstrate that this novel CBR reporter system provides efficient, red-shifted light production relative to lux and may have significant applications in the analysis of L. monocytogenes pathogenesis. PMID- 29018415 TI - Time to Go Back to the Original Name. PMID- 29018416 TI - Transcriptomic Analysis of the Adaptation of Listeria monocytogenes to Lagoon and Soil Matrices Associated with a Piggery Environment: Comparison of Expression Profiles. AB - Understanding how Listeria monocytogenes, the causative agent of listeriosis, adapts to the environment is crucial. Adaptation to new matrices requires regulation of gene expression. To determine how the pathogen adapts to lagoon effluent and soil, two matrices where L. monocytogenes has been isolated, we compared the transcriptomes of L. monocytogenes CIP 110868 20 min and 24 h after its transfer to effluent and soil extract. Results showed major variations in the transcriptome of L. monocytogenes in the lagoon effluent but only minor modifications in the soil. In both the lagoon effluent and in the soil, genes involved in mobility and chemotaxis and in the transport of carbohydrates were the most frequently represented in the set of genes with higher transcript levels, and genes with phage-related functions were the most represented in the set of genes with lower transcript levels. A modification of the cell envelop was only found in the lagoon environment. Finally, the differential analysis included a large proportion of regulators, regulons, and ncRNAs. PMID- 29018418 TI - Microbial Diversity in a Hypersaline Sulfate Lake: A Terrestrial Analog of Ancient Mars. AB - Life can persist under severe osmotic stress and low water activity in hypersaline environments. On Mars, evidence for the past presence of saline bodies of water is prevalent and resulted in the widespread deposition of sulfate and chloride salts. Here we investigate Spotted Lake (British Columbia, Canada), a hypersaline lake with extreme (>3 M) levels of sulfate salts as an exemplar of the conditions thought to be associated with ancient Mars. We provide the first characterization of microbial structure in Spotted Lake sediments through metagenomic sequencing, and report a bacteria-dominated community with abundant Proteobacteria, Firmicutes, and Bacteroidetes, as well as diverse extremophiles. Microbial abundance and functional comparisons reveal similarities to Ace Lake, a meromictic Antarctic lake with anoxic and sulfidic bottom waters. Our analysis suggests that hypersaline-associated species occupy niches characterized foremost by differential abundance of Archaea, uncharacterized Bacteria, and Cyanobacteria. Potential biosignatures in this environment are discussed, specifically the likelihood of a strong sulfur isotopic fractionation record within the sediments due to the presence of sulfate reducing bacteria. With its high sulfate levels and seasonal freeze-thaw cycles, Spotted Lake is an analog for ancient paleolakes on Mars in which sulfate salt deposits may have offered periodically habitable environments, and could have concentrated and preserved organic materials or their biomarkers over geologic time. PMID- 29018417 TI - Molecular Mechanisms That Contribute to Horizontal Transfer of Plasmids by the Bacteriophage SPP1. AB - Natural transformation and viral-mediated transduction are the main avenues of horizontal gene transfer in Firmicutes. Bacillus subtilis SPP1 is a generalized transducing bacteriophage. Using this lytic phage as a model, we have analyzed how viral replication and recombination systems contribute to the transfer of plasmid-borne antibiotic resistances. Phage SPP1 DNA replication relies on essential phage-encoded replisome organizer (G38P), helicase loader (G39P), hexameric replicative helicase (G40P), recombinase (G35P) and in less extent on the partially dispensable 5'->3' exonuclease (G34.1P), the single-stranded DNA binding protein (G36P) and the Holliday junction resolvase (G44P). Correspondingly, the accumulation of linear concatemeric plasmid DNA, and the formation of transducing particles were blocked in the absence of G35P, G38P, G39P, and G40P, greatly reduced in the G34.1P, G36P mutants, and slightly reduced in G44P mutants. In contrast, establishment of injected linear plasmid DNA in the recipient host was independent of viral-encoded functions. DNA homology between SPP1 and the plasmid, rather than a viral packaging signal, enhanced the accumulation of packagable plasmid DNA. The transfer efficiency was also dependent on plasmid copy number, and rolling-circle plasmids were encapsidated at higher frequencies than theta-type replicating plasmids. PMID- 29018419 TI - Gene Expression Response of Salmonella enterica Serotype Enteritidis Phage Type 8 to Subinhibitory Concentrations of the Plant-Derived Compounds Trans Cinnamaldehyde and Eugenol. AB - Background:Salmonella Enteritidis phage type 8 (PT8) is a major poultry associated Salmonella strain implicated in foodborne outbreaks in the United States. We previously reported that two plant-derived compounds generally recognized as safe (GRAS), trans-cinnamaldehyde (TC), and eugenol (EG), significantly reduced S. Enteritidis colonization in broiler and layer chickens. To elucidate potential PT8 genes affected by TC and EG during colonization, a whole-genome microarray analysis of the bacterium treated with TC and EG was conducted. Results:S. Enteritidis PT8 was grown in Luria-Bertani broth at 37 degrees C to an OD600 of ~0.5. Subinhibitory concentrations (SICs; concentration that does not inhibit bacterial growth) of TC (0.01%; 0.75 mM) or EG (0.04%; 2.46 mM) were then added to the culture. S. Enteritidis PT8 RNA was extracted before and 30 min after TC or EG addition. Labeled cDNA from three replicate experiments was subsequently hybridized to a microarray of over 99% of S. Enteritidis PT4 genes, and the hybridization signals were quantified. The plant-derived compounds down-regulated (P < 0.005) expression of S. Enteritidis PT8 genes involved in flagellar motility, regulation of the Salmonella Pathogenicity Island 1, and invasion of intestinal epithelial cells. TC and EG also suppressed transcription of genes encoding multiple transport systems and outer membrane proteins. Moreover, several metabolic and biosynthetic pathways in the pathogen were down regulated during exposure to the plant-derived compounds. Both TC and EG stimulated the transcription of heat shock genes, such as dnaK, dnaJ, ibpB, and ibpA in S. Enteritidis PT8 (P < 0.005). The results obtained from microarray were validated using a quantitative real-time PCR. Conclusion: The plant-derived compounds TC and EG exert antimicrobial effects on S. Enteritidis PT8 by affecting multiple genes, including those associated with virulence, colonization, cell membrane composition, and transport systems. PMID- 29018420 TI - Molecular Characterization of Reduced Susceptibility to Biocides in Clinical Isolates of Acinetobacter baumannii. AB - Active efflux is regarded as a common mechanism for antibiotic and biocide resistance. However, the role of many drug efflux pumps in biocide resistance in Acinetobacter baumannii remains unknown. Using biocide-resistant A. baumannii clinical isolates, we investigated the incidence of 11 known/putative antimicrobial resistance efflux pump genes (adeB, adeG, adeJ, adeT1, adeT2, amvA, abeD, abeM, qacE, qacEDelta1, and aceI) and triclosan target gene fabI through PCR and DNA sequencing. Reverse transcriptase quantitative PCR was conducted to assess the correlation between the efflux pump gene expression and the reduced susceptibility to triclosan or chlorhexidine. The A. baumannii isolates displayed high levels of reduced susceptibility to triclosan, chlorhexidine, benzalkonium, hydrogen peroxide, and ethanol. Most tested isolates were resistant to multiple antibiotics. Efflux resistance genes were widely distributed and generally expressed in A. baumannii. Although no clear relation was established between efflux pump gene expression and antibiotic resistance or reduced biocide susceptibility, triclosan non-susceptible isolates displayed relatively increased expression of adeB and adeJ whereas chlorhexidine non-susceptible isolates had increased abeM and fabI gene expression. Increased expression of adeJ and abeM was also demonstrated in multiple antibiotic resistant isolates. Exposure of isolates to subinhibitory concentrations of triclosan or chlorhexidine induced gene expression of adeB, adeG, adeJ and fabI, and adeB, respectively. A point mutation in FabI, Gly95Ser, was observed in only one triclosan-resistant isolate. Multiple sequence types with the major clone complex, CC92, were identified in high level triclosan-resistant isolates. Overall, this study showed the high prevalence of antibiotic and biocide resistance as well as the complexity of intertwined resistance mechanisms in clinical isolates of A. baumannii, which highlights the importance of antimicrobial stewardship and resistance surveillance in clinics. PMID- 29018421 TI - Himar1 Transposon for Efficient Random Mutagenesis in Aggregatibacter actinomycetemcomitans. AB - Aggregatibacter actinomycetemcomitans is the primary etiological agent of aggressive periodontal disease. Identification of novel virulence factors at the genome-wide level is hindered by lack of efficient genetic tools to perform mutagenesis in this organism. The Himar1 mariner transposon is known to yield a random distribution of insertions in an organism's genome with requirement for only a TA dinucleotide target and is independent of host-specific factors. However, the utility of this system in A. actinomycetemcomitans is unknown. In this study, we found that Himar1 transposon mutagenesis occurs at a high frequency (*10-4), and can be universally applied to wild-type A. actinomycetemcomitans strains of serotypes a, b, and c. The Himar1 transposon inserts were stably inherited in A. actinomycetemcomitans transconjugants in the absence of antibiotics. A library of 16,000 mutant colonies of A. actinomycetemcomitans was screened for reduced biofilm formation. Mutants with transposon inserts in genes encoding pilus, putative ion transporters, multidrug resistant proteins, transcription regulators and enzymes involved in the synthesis of extracellular polymeric substance, bacterial metabolism and stress response were discovered in this screen. Our results demonstrated the utility of the Himar1 mutagenesis system as a novel genetic tool for functional genomic analysis in A. actinomycetemcomitans. PMID- 29018422 TI - Novel Aggregation Promoting Factor AggE Contributes to the Probiotic Properties of Enterococcus faecium BGGO9-28. AB - The understanding of mechanisms of interactions between various bacterial cell surface proteins and host receptors has become imperative for the study of the health promoting features of probiotic enterococci. This study, for the first time, describes a novel enterococcal aggregation protein, AggE, from Enterococcus faecium BGGO9-28, selected from a laboratory collection of enterococcal isolates with auto-aggregation phenotypes. Among them, En. faecium BGGO9-28 showed the strongest auto-aggregation, adhesion to components of ECM and biofilm formation. Novel aggregation promoting factor AggE, a protein of 178.1 kDa, belongs to the collagen-binding superfamily of proteins and shares similar architecture with previously discovered aggregation factors from lactic acid bacteria (LAB). Its expression in heterologous enterococcal and lactococcal hosts demonstrates that the aggE gene is sufficient for cell aggregation. The derivatives carrying aggE exhibited the ten times higher adhesion ability to collagen and fibronectin, possess about two times higher adhesion to mucin and contribute to the increase of biofilm formation, comparing to the control strains. Analysis for the presence of virulence factors (cytolysin and gelatinase production), antibiotic resistance (antibiotic susceptibility) and genes (cylA, agg, gelE, esp, hylN, ace, efaAfs , and efaAfm ) showed that BGGO9-28 was sensitive to all tested antibiotics, without hemolytic or gelatinase activity. This strain does not carry any of the tested genes encoding for known virulence factors. Results showed that BGGO9-28 was resistant to low pH and high concentrations of bile salts. Also, it adhered strongly to the Caco-2 human epithelial cell line. In conclusion, the results of this study indicate that the presence of AggE protein on the cell surface in enterococci is a desirable probiotic feature. PMID- 29018423 TI - The Microbiome of Seriola lalandi of Wild and Aquaculture Origin Reveals Differences in Composition and Potential Function. AB - Seriola lalandi is an economically important species that is globally distributed in temperate and subtropical marine waters. Aquaculture production of this species has had problems associated with intensive fish farming, such as disease outbreaks or nutritional deficiencies causing high mortalities. Intestinal microbiota has been involved in many processes that benefit the host, such as disease control, stimulation of the immune response, and the promotion of nutrient metabolism, among others. However, little is known about the potential functionality of the microbiota and the differences in the composition between wild and aquacultured fish. Here, we assayed the V4-region of the 16S rRNA gene using high-throughput sequencing. Our results showed that there are significant differences between S. lalandi of wild and aquaculture origin (ANOSIM and PERMANOVA, P < 0.05). At the genus level, a total of 13 genera were differentially represented between the two groups, all of which have been described as beneficial microorganisms that have an antagonistic effect against pathogenic bacteria, improve immunological parameters and growth performance, and contribute to nutrition. Additionally, the changes in the presumptive functions of the intestinal microbiota of yellowtail were examined by predicting the metagenomes using PICRUSt. The most abundant functional categories were those corresponding to the metabolism of cofactors and vitamins, amino acid metabolism and carbohydrate metabolism, revealing differences in the contribution of the microbiota depending on the origin of the animals. To our knowledge, this is the first study to characterize and compare the intestinal microbiota of S. lalandi of wild and aquaculture origin using high-throughput sequencing. PMID- 29018424 TI - Sample Preservation, DNA or RNA Extraction and Data Analysis for High-Throughput Phytoplankton Community Sequencing. AB - Phytoplankton is the basis for aquatic food webs and mirrors the water quality. Conventionally, phytoplankton analysis has been done using time consuming and partly subjective microscopic observations, but next generation sequencing (NGS) technologies provide promising potential for rapid automated examination of environmental samples. Because many phytoplankton species have tough cell walls, methods for cell lysis and DNA or RNA isolation need to be efficient to allow unbiased nucleic acid retrieval. Here, we analyzed how two phytoplankton preservation methods, three commercial DNA extraction kits and their improvements, three RNA extraction methods, and two data analysis procedures affected the results of the NGS analysis. A mock community was pooled from phytoplankton species with variation in nucleus size and cell wall hardness. Although the study showed potential for studying Lugol-preserved sample collections, it demonstrated critical challenges in the DNA-based phytoplankton analysis in overall. The 18S rRNA gene sequencing output was highly affected by the variation in the rRNA gene copy numbers per cell, while sample preservation and nucleic acid extraction methods formed another source of variation. At the top, sequence-specific variation in the data quality introduced unexpected bioinformatics bias when the sliding-window method was used for the quality trimming of the Ion Torrent data. While DNA-based analyses did not correlate with biomasses or cell numbers of the mock community, rRNA-based analyses were less affected by different RNA extraction procedures and had better match with the biomasses, dry weight and carbon contents, and are therefore recommended for quantitative phytoplankton analyses. PMID- 29018425 TI - Phosphorylation of Icariin Can Alleviate the Oxidative Stress Caused by the Duck Hepatitis Virus A through Mitogen-Activated Protein Kinases Signaling Pathways. AB - The duck virus hepatitis (DVH) caused by the duck hepatitis virus A (DHAV) has produced extensive economic losses to the duck industry. The currently licensed commercial vaccine has shown some defects and does not completely prevent the DVH. Accordingly, a new alternative treatment for this disease is urgently needed. Previous studies have shown that icariin (ICA) and its phosphorylated derivative (pICA) possessed good anti-DHAV effects through direct and indirect antiviral pathways, such as antioxidative stress. But the antioxidant activity showed some differences between ICA and pICA. The aim of this study is to prove that ICA and pICA attenuate oxidative stress caused by DHAV in vitro and in vivo, and to investigate their mechanism of action to explain their differences in antioxidant activities. In vivo, the dynamic deaths, oxidative evaluation indexes and hepatic pathological change scores were detected. When was added the hinokitiol which showed the pro-oxidative effect as an intervention method, pICA still possessed more treatment effect than ICA. The strong correlation between mortality and oxidative stress proves that ICA and pICA alleviate oxidative stress caused by DHAV. This was also demonstrated by the addition of hydrogen peroxide (H2O2) as an intervention method in vitro. pICA can be more effective than ICA to improve duck embryonic hepatocytes (DEHs) viability and reduce the virulence of DHAV. The strong correlation between TCID50 and oxidative stress demonstrates that ICA and pICA can achieve anti-DHAV effects by inhibiting oxidative stress. In addition, the superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) of ICA and pICA showed significant difference. pICA could significantly inhibit the phosphorylation of p38, extra cellular signal regulated Kinase (ERK 1/2) and c-Jun N-terminal kinase (JNK), which were related to mitogen activated protein kinases (MAPKs) signaling pathways. Ultimately, compared to ICA, pICA exhibited more antioxidant activity that could regulate oxidative stress-related indicators, and inhibited the phosphorylation of MAPKs signaling pathway. PMID- 29018426 TI - Transfer and Persistence of a Multi-Drug Resistance Plasmid in situ of the Infant Gut Microbiota in the Absence of Antibiotic Treatment. AB - The microbial ecosystem residing in the human gut is believed to play an important role in horizontal exchange of virulence and antibiotic resistance genes that threatens human health. While the diversity of gut-microorganisms and their genetic content has been studied extensively, high-resolution insight into the plasticity, and selective forces shaping individual genomes is scarce. In a longitudinal study, we followed the dynamics of co-existing Escherichia coli lineages in an infant not receiving antibiotics. Using whole genome sequencing, we observed large genomic deletions, bacteriophage infections, as well as the loss and acquisition of plasmids in these lineages during their colonization of the human gut. In particular, we captured the exchange of multidrug resistance genes, and identified a clinically relevant conjugative plasmid mediating the transfer. This resistant transconjugant lineage was maintained for months, demonstrating that antibiotic resistance genes can disseminate and persist in the gut microbiome; even in absence of antibiotic selection. Furthermore, through in vivo competition assays, we suggest that the resistant transconjugant can persist through a fitness advantage in the mouse gut in spite of a fitness cost in vitro. Our findings highlight the dynamic nature of the human gut microbiota and provide the first genomic description of antibiotic resistance gene transfer between bacteria in the unperturbed human gut. These results exemplify that conjugative plasmids, harboring resistance determinants, can transfer and persists in the gut in the absence of antibiotic treatment. PMID- 29018427 TI - Human Cytomegalovirus IE2 86 kDa Protein Induces STING Degradation and Inhibits cGAMP-Mediated IFN-beta Induction. AB - Stimulator of interferon genes (STING) is a critical signaling molecule in the innate immune response against DNA viruses by either directly sensing intracellular DNA or functioning as an adaptor molecule to activate the type I interferon (IFN) signaling pathway. We determined the functional interaction between STING and human cytomegalovirus (HCMV). A cDNA library containing 133 HCMV ORFs was screened to identify viral genes that inhibit STING-induced IFN beta promoter activation. Among the screened ORFs, UL122, which encodes the immediate-early 2 86 kDa (IE86) protein, strongly abolished STING-induced IFN beta promoter activation. Interestingly, IE86 protein facilitated the proteasome dependent degradation of STING and inhibited 2'3'-cGAMP-mediated induction of IFNB1 and CXCL10. Taken together, this study demonstrates the existence of a post translational regulation of STING by HCMV IE86 protein. PMID- 29018428 TI - Defining the Genetic Features of O-Antigen Biosynthesis Gene Cluster and Performance of an O-Antigen Serotyping Scheme for Escherichia albertii. AB - Escherichia albertii is a newly described and emerging diarrheagenic pathogen responsible for outbreaks of gastroenteritis. Serotyping plays an important role in diagnosis and epidemiological studies for pathogens of public health importance. The diversity of O-antigen biosynthesis gene clusters (O-AGCs) provides the primary basis for serotyping. However, little is known about the distribution and diversity of O-AGCs of E. albertii strains. Here, we presented a complete sequence set for the O-AGCs from 52 E. albertii strains and identified seven distinct O-AGCs. Six of these were also found in 15 genomes of E. albertii strains deposited in the public database. Possession of wzy/wzx genes in each O AGC strongly suggest that O-antigens of E. albertii were synthesized by the Wzx/Wzy-dependent pathway. Furthermore, we performed an O-antigen serotyping scheme for E. albertii based on specific antisera against seven O-antigens and a high throughput xTAG Luminex assay to simultaneously detect seven O-AGCs. Both methods accurately identified serotypes of 64 tested E. albertii strains. Our data revealed the high-level diversity of O-AGCs in E. albertii. We also provide valuable methods to reliably identify and serotype this bacterium. PMID- 29018429 TI - D-Ribose Interferes with Quorum Sensing to Inhibit Biofilm Formation of Lactobacillus paraplantarum L-ZS9. AB - Biofilms help bacteria survive under adverse conditions, and the quorum sensing (QS) system plays an important role in regulating their activities. Quorum sensing inhibitors (QSIs) have great potential to inhibit pathogenic biofilm formation and are considered possible replacements for antibiotics; however, further investigation is required to understand the mechanisms of action of QSIs and to avoid inhibitory effects on beneficial bacteria. Lactobacillus paraplantarum L-ZS9, isolated from fermented sausage, is a bacteriocin-producing bacteria that shows potential to be a probiotic starter. Since exogenous autoinducer-2 (AI-2) promoted biofilm formation of the strain, expression of genes involved in AI-2 production was determined in L. paraplantarum L-ZS9, especially the key gene luxS. D-Ribose was used to inhibit biofilm formation because of its AI-2 inhibitory activity. Twenty-seven differentially expressed proteins were identified by comparative proteomic analysis following D-ribose treatment and were functionally classified into six groups. Real-time quantitative PCR showed that AI-2 had a counteractive effect on transcription of the genes tuf, fba, gap, pgm, nfo, rib, and rpoN. Over-expression of the tuf, fba, gap, pgm, and rpoN genes promoted biofilm formation of L. paraplantarum L ZS9, while over-expression of the nfo and rib genes inhibited biofilm formation. In conclusion, D-ribose inhibited biofilm formation of L. paraplantarum L-ZS9 by regulating multiple genes involved in the glycolytic pathway, extracellular DNA degradation and transcription, and translation. This research provides a new mechanism of QSI regulation of biofilm formation of Lactobacillus and offers a valuable reference for QSI application in the future. PMID- 29018430 TI - Preliminary Transcriptome Analysis of Mature Biofilm and Planktonic Cells of Salmonella Enteritidis Exposure to Acid Stress. AB - Salmonella has emerged as a well-recognized food-borne pathogen, with many strains able to form biofilms and thus cause cross-contamination in food processing environments where acid-based disinfectants are widely encountered. In the present study, RNA sequencing was employed to establish complete transcriptome profiles of Salmonella Enteritidis in the forms of planktonic and biofilm-associated cells cultured in Tryptic Soytone Broth (TSB) and acidic TSB (aTSB). The gene expression patterns of S. Enteritidis significantly differed between biofilm-associated and planktonic cells cultivated under the same conditions. The assembled transcriptome of S. Enteritidis in this study contained 5,442 assembled transcripts, including 3,877 differentially expressed genes (DEGs) identified in biofilm and planktonic cells. These DEGs were enriched in terms such as regulation of biological process, metabolic process, macromolecular complex, binding and transferase activity, which may play crucial roles in the biofilm formation of S. Enteritidis cultivated in aTSB. Three significant pathways were observed to be enriched under acidic conditions: bacterial chemotaxis, porphyrin-chlorophyll metabolism and sulfur metabolism. In addition, 15 differentially expressed novel non-coding small RNAs (sRNAs) were identified, and only one was found to be up-regulated in mature biofilms. This preliminary study of the S. Enteritidis transcriptome serves as a basis for future investigations examining the complex network systems that regulate Salmonella biofilm in acidic environments, which provide information on biofilm formation and acid stress interaction that may facilitate the development of novel disinfection procedures in the food processing industry. PMID- 29018431 TI - Depression of Vaccinal Immunity to Marek's Disease by Infection with Chicken Infectious Anemia Virus. AB - Marek's disease (MD) has been occurring with increasing frequency in chickens in recent years. To our knowledge, however, there has been no report of the very virulent plus (vv+) MD virus (MDV) field isolate in China. Studies have shown that dual infection with immunosuppressive viruses such as chicken infectious anemia virus (CIAV) occurs frequently in chickens developing MD. In this study, we performed a designed set of in vivo experiments, which comprised five different groups of chickens, including the group of CVI988/Rispens-vaccinated chickens, the groups of CVI988/Rispens-vaccinated chickens infected with MDV or CIAV or both viruses (MDV and CIAV), and the group of MDV-challenged chickens. The effects of CIAV dual infection on the immunization of commercial MDV vaccine CVI988/Rispens were evaluated. The results show that infection of the SD15 strain of CIAV significantly reduced the weight and antibody titers to avian influenza virus (AIV)/Newcastle disease virus (NDV) inactivated vaccines of chickens immunized with the CVI988/Rispens, and resulted in the atrophy of thymus/bursa and the enlargement of spleen. The CVI988/Rispens vaccination conferred good immune protection for chickens challenged with 2000 PFU of the GX0101 strain of MDV. However, dual infection with SD15 significantly reduced the body weight, antibody titers induced by AIV/NDV inactivated vaccines and protective index of CVI988/Rispens, and resulted in the aggravation of the immunosuppression, mortality, and viremia of GX0101 in CVI988/Rispens-immunized/GX0101-challenged chickens. Overall, CIAV infection significantly reduced the protective effects of the CVI988/Rispens vaccine against MDV, implying that concurrent infection with CIAV may be a major contributor in the frequent attacks of MD in China in recent years. PMID- 29018432 TI - Maize Inoculation with Azospirillum brasilense Ab-V5 Cells Enriched with Exopolysaccharides and Polyhydroxybutyrate Results in High Productivity under Low N Fertilizer Input. AB - Although Azospirillum strains used in commercial inoculant formulations presents diazotrophic activity, it has been reported that their ability to produce phytohormones plays a pivotal role in plant growth-promotion, leading to a general recommendation of its use in association with regular N-fertilizer doses. In addition, a high variability in the effectiveness of Azospirillum inoculants is still reported under field conditions, contributing to the adoption of the inoculation technology as an additional management practice rather than its use as an alternative practice to the use of chemical inputs in agriculture. To investigate whether the content of stress-resistance biopolymers would improve the viability and performance of Azospirillum inoculants when used as substitute of N-fertilizers, biomass of A. brasilense strain Ab-V5 enriched in exopolysaccharides (EPS) and polyhydroxybutirate (PHB) was produced using a new culture medium developed by factorial mixture design, and the effectiveness of resulting inoculants was evaluated under field conditions. The culture medium formulation extended the log phase of A. brasilense cultures, which presented higher cell counts and increased EPS and PHB contents than observed in the cultures grown in the OAB medium used as control. An inoculation trial with maize conducted under greenhouse conditions and using the biopolymers-enriched Ab-V5 cells demonstrated the importance of EPS and PHB to the long term bacterial viability in soil and to the effectiveness of inoculation. The effectiveness of liquid and peat inoculants prepared with Ab-V5 cells enriched with EPS and PHB was also evaluated under field conditions, using maize as target crop along different seasons, with the inoculants applied directly over seeds or at topdressing under limiting levels of N-fertilization. No additive effect on yield resulted from inoculation under high N fertilizer input, while inoculated plants grown under 80% reduction in N fertilizer showed yields at levels compared to fully fertilized plants, regardless the inoculation method. The presented data highlights the feasibility to partially substitute the N-fertilizer demand in non legume crops using high-quality inoculant formulations, prepared with diazotrophic bacteria enriched with stress-resistance biopolymers that confer increased viability an effectiveness to the bacterial cells. PMID- 29018434 TI - Commentary: Toxoplasma depends on lysosomal consumption of autophagosomes for persistent infection. PMID- 29018433 TI - Strain Identity of the Ectomycorrhizal Fungus Laccaria bicolor Is More Important than Richness in Regulating Plant and Fungal Performance under Nutrient Rich Conditions. AB - Effects of biodiversity on productivity are more likely to be expressed when there is greater potential for niche complementarity. In soil, chemically complex pools of nutrient resources should provide more opportunities for niche complementarity than chemically simple pools. Ectomycorrhizal (ECM) fungal genotypes can exhibit substantial variation in nutrient acquisition traits and are key components of soil biodiversity. Here, we tested the hypothesis that increasing the chemical complexity and forms of soil nutrients would enhance the effects of intraspecific ECM diversity on host plant and fungal productivity. In pure culture, we found substantial variation in growth of strains of the ECM fungus Laccaria bicolor on a range of inorganic and organic forms of nutrients. Subsequent experiments examined the effects of intraspecific identity and richness using Scots pine (Pinus sylvestris) seedlings colonized with different strains of L. bicolor growing on substrates supplemented with either inorganic or organic forms of nitrogen and phosphorus. Intraspecific identity effects on plant productivity were only found under the inorganic nutrient amendment, whereas intraspecific identity affected fungal productivity to a similar extent under both nutrient treatments. Overall, there were no significant effects of intraspecific richness on plant and fungal productivity. Our findings suggest soil nutrient composition does not interact strongly with ECM intraspecific richness, at least under experimental conditions where mineral nutrients were not limiting. Under these conditions, intraspecific identity of ECM fungi becomes more important than richness in modulating plant and fungal performance. PMID- 29018436 TI - Use of RNALater(r) Preservation for Virome Sequencing in Outbreak Settings. AB - Outbreaks of infectious diseases may occur in animal and human populations; this underlines the need for suitable One Health approaches. During outbreak situations, straightforward identification of etiological agents is indispensable for taking countermeasures. A recently published protocol for metagenomic virus detection in clinical specimens (TUViD-VM) was developed for snap-frozen tissues which can be challenging to obtain. Here, we describe the use of RNALater(r) treated tissue at ambient temperatures for virome sequencing. This study demonstrates that samples stored in RNALater(r) buffer yield similar results to those stored snap-frozen. PMID- 29018435 TI - Lactobacillus plantarum BSGP201683 Isolated from Giant Panda Feces Attenuated Inflammation and Improved Gut Microflora in Mice Challenged with Enterotoxigenic Escherichia coli. AB - In this work, we searched for an effective probiotic that can help control intestinal infection, particularly enterotoxigenic Escherichia coli K88 (ETEC) invasion, in giant panda (Ailuropoda melanoleuca). As a potential probiotic strain, Lactobacillus plantarum BSGP201683 (L. plantarum G83) was isolated from the feces of giant panda and proven beneficial in vitro. This study was aimed to evaluate the protective effect of L. plantarum G83 in mice challenged with ETEC. The mice were orally administered with 0.2 mL of PBS containing L. plantarum G83 at 0 colony-forming units (cfu) mL-1 (control; negative control, ETEC group), 5.0 * 108 cfu mL-1 (LDLP), 5.0 * 109 cfu mL-1 (MDLP), and 5.0 * 1010 cfu mL-1 (HDLP) for 14 consecutive days. At day 15, the mice (LDLP, MDLP, HDLP, and ETEC groups) were challenged with ETEC and assessed at 0, 24, and 144 h. Animal health status; chemical and biological intestinal barriers; and body weight were measured. Results showed that L. plantarum G83 supplementation protected the mouse gut mainly by attenuating inflammation and improving the gut microflora. Most indices significantly changed at 24 h after challenge compared to those at 0 and 144 h. All treatment groups showed inhibited plasma diamine oxidase activity and D lactate concentration. Tight-junction protein expression was down-regulated, and interleukin (IL)-1beta, IL-6, IL-8, TLR4, and MyD88 levels were up-regulated in the jejunum in the LDLP and MDLP groups. The number of the Enterobacteriaceae family and the heat-labile enterotoxin (LT) gene decreased (P < 0.05) in the colons in the LDLP and MDLP groups. All data indicated that L. plantarum G83 could attenuate acute intestinal inflammation caused by ETEC infection, and the low and intermediate doses were superior to the high dose. These findings suggested that L. plantarum G83 may serve as a protective probiotic for intestinal disease and merits further investigation. PMID- 29018438 TI - Antibody Immunity Induced by H7N9 Avian Influenza Vaccines: Evaluation Criteria, Affecting Factors, and Implications for Rational Vaccine Design. AB - Severe H7N9 avian influenza virus (AIV) infections in humans have public health authorities around the world on high alert for the potential development of a human influenza pandemic. Currently, the newly-emerged highly pathogenic avian influenza A (H7N9) virus poses a dual challenge for public health and poultry industry. Numerous H7N9 vaccine candidates have been generated using various platforms. Immunization trials in animals and humans showed that H7N9 vaccines are apparently poorly immunogenic because they induced low hemagglutination inhibition and virus neutralizing antibody titers. However, H7N9 vaccines elicit comparable levels of total hemagglutinin (HA)-reactive IgG antibody as the seasonal influenza vaccines, suggesting H7N9 vaccines are as immunogenic as their seasonal counterparts. A large fraction of overall IgG antibody is non neutralizing antibody and they target unrecognized epitopes outside of the traditional antigenic sites in HA. Further, the Treg epitope identified in H7 HA may at least partially contribute to regulation of antibody immunity. Here, we review the latest advances for the development of H7N9 vaccines and discuss the influence of serological criteria on evaluation of immunogenicity of H7N9 vaccines. Next, we discuss factors affecting antibody immunity induced by H7N9 vaccines, including the change in antigenic epitopes in HA and the presence of the Treg epitope. Last, we present our perspectives for the unique features of antibody immunity of H7N9 vaccines and propose some future directions to improve or modify antibody response induced by H7N9 vaccines. This perspective would provide critical implications for rational design of H7N9 vaccines for human and veterinary use. PMID- 29018439 TI - Neutrophils from Patients with Primary Ciliary Dyskinesia Display Reduced Chemotaxis to CXCR2 Ligands. AB - Primary ciliary dyskinesia (PCD), cystic fibrosis (CF), and chronic obstructive airway disease are characterized by neutrophilic inflammation in the lungs. In CF and chronic obstructive airway disease, improper functioning of neutrophils has been demonstrated. We hypothesized that the pulmonary damage in PCD might be aggravated by abnormal functioning neutrophils either as a primary consequence of the PCD mutation or secondary to chronic inflammation. We analyzed chemotactic responses and chemoattractant receptor expression profiles of peripheral blood neutrophils from 36 patients with PCD, 21 healthy children and 19 healthy adults. We stimulated peripheral blood monocytes from patients and healthy controls and measured CXCL8 and IL-1beta production with ELISA. PCD neutrophils displayed reduced migration toward CXCR2 ligands (CXCL5 and CXCL8) in the shape change, microchamber and microslide chemotaxis assays, whereas leukotriene B4 and complement component 5a chemotactic responses were not significantly different. The reduced response to CXCL8 was observed in all subgroups of patients with PCD (displaying either normal ultrastructure, dynein abnormalities or central pair deficiencies) and correlated with lung function. CXCR2 was downregulated in about 65% of the PCD patients, suggestive for additional mechanisms causing CXCR2 impairment. After treatment with the TLR ligands lipopolysaccharide and peptidoglycan, PCD monocytes produced more CXCL8 and IL-1beta compared to controls. Moreover, PCD monocytes also responded stronger to IL-1beta stimulation in terms of CXCL8 production. In conclusion, we revealed a potential link between CXCR2 and its ligand CXCL8 and the pathogenesis of PCD. PMID- 29018437 TI - Biocontrol of Bacterial Leaf Blight of Rice and Profiling of Secondary Metabolites Produced by Rhizospheric Pseudomonas aeruginosa BRp3. AB - Xanthomonas oryzae pv. oryzae (Xoo) is widely prevalent and causes Bacterial Leaf Blight (BLB) in Basmati rice grown in different areas of Pakistan. There is a need to use environmentally safe approaches to overcome the loss of grain yield in rice due to this disease. The present study aimed to develop inocula, based on native antagonistic bacteria for biocontrol of BLB and to increase the yield of Super Basmati rice variety. Out of 512 bacteria isolated from the rice rhizosphere and screened for plant growth promoting determinants, the isolate BRp3 was found to be the best as it solubilized 97 MUg/ mL phosphorus, produced 30 MUg/mL phytohormone indole acetic acid and 15 mg/ L siderophores in vitro. The isolate BRp3 was found to be a Pseudomonas aeruginosa based on 16S rRNA gene sequencing (accession no. HQ840693). This bacterium showed antagonism in vitro against different phytopathogens including Xoo and Fusarium spp. Strain BRp3 showed consistent pathogen suppression of different strains of BLB pathogen in rice. Mass spectrometric analysis detected the production of siderophores (1 hydroxy-phenazine, pyocyanin, and pyochellin), rhamnolipids and a series of already characterized 4-hydroxy-2-alkylquinolines (HAQs) as well as novel 2,3,4 trihydroxy-2-alkylquinolines and 1,2,3,4-tetrahydroxy-2-alkylquinolines in crude extract of BRp3. These secondary metabolites might be responsible for the profound antibacterial activity of BRp3 against Xoo pathogen. Another contributing factor toward the suppression of the pathogen was the induction of defense related enzymes in the rice plant by the inoculated strain BRp3. When used as an inoculant in a field trial, this strain enhanced the grain and straw yields by 51 and 55%, respectively, over non-inoculated control. Confocal Laser Scanning Microscopy (CLSM) used in combination with immunofluorescence marker confirmed P. aeruginosa BRp3 in the rice rhizosphere under sterilized as well as field conditions. The results provide evidence that novel secondary metabolites produced by BRp3 may contribute to its activity as a biological control agent against Xoo and its potential to promote the growth and yield of Super Basmati rice. PMID- 29018440 TI - Human Gut Symbiont Roseburia hominis Promotes and Regulates Innate Immunity. AB - OBJECTIVE: Roseburia hominis is a flagellated gut anaerobic bacterium belonging to the Lachnospiraceae family within the Firmicutes phylum. A significant decrease of R. hominis colonization in the gut of ulcerative colitis patients has recently been demonstrated. In this work, we have investigated the mechanisms of R. hominis-host cross talk using both murine and in vitro models. DESIGN: The complete genome sequence of R. hominis A2-183 was determined. C3H/HeN germ-free mice were mono-colonized with R. hominis, and the host-microbe interaction was studied using histology, transcriptome analyses and FACS. Further investigations were performed in vitro and using the TLR5KO and DSS-colitis murine models. RESULTS: In the bacterium, R. hominis, host gut colonization upregulated genes involved in conjugation/mobilization, metabolism, motility, and chemotaxis. In the host cells, bacterial colonization upregulated genes related to antimicrobial peptides, gut barrier function, toll-like receptors (TLR) signaling, and T cell biology. CD4+CD25+FoxP3+ T cell numbers increased in the lamina propria of both mono-associated and conventional mice treated with R. hominis. Treatment with the R. hominis bacterium provided protection against DSS-induced colitis. The role of flagellin in host-bacterium interaction was also investigated. CONCLUSION: Mono association of mice with R. hominis bacteria results in specific bidirectional gene expression patterns. A set of genes thought to be important for host colonization are induced in R. hominis, while the host cells respond by strengthening gut barrier function and enhancing Treg population expansion, possibly via TLR5-flagellin signaling. Our data reveal the immunomodulatory properties of R. hominis that could be useful for the control and treatment of gut inflammation. PMID- 29018441 TI - Very Early-Onset Inflammatory Manifestations of X-Linked Chronic Granulomatous Disease. AB - Chronic granulomatous disease (CGD) is a rare primary immune deficiency caused by mutations in genes coding for components of the nicotinamide adenine dinucleotide phosphate oxidase, characterized by severe and recurrent bacterial and fungal infections, together with inflammatory complications. Dysregulation of inflammatory responses are often present in this disease and may lead to granulomatous lesions, most often affecting the gastrointestinal (GI) and urinary tracts. Treatment of inflammatory complications usually includes corticosteroids, whereas antimicrobial prophylaxis is used for infection prevention. Curative treatment of both infectious susceptibility and inflammatory disease can be achieved by hematopoietic stem cell transplantation. We report herein three patients with the same mutation of the CYBB gene who presented with very early onset and severe GI manifestations of X-linked CGD. The most severely affected patient had evidence of antenatal inflammatory involvement of the GI and urinary tracts. Extreme hyperleukocytosis with eosinophilia and high inflammatory markers were observed in all three patients. A Mycobacterium avium lung infection and an unidentified fungal lung infection occurred in two patients both during their first year of life, which is indicative of the severity of the disease. All three patients underwent bone marrow transplantation and recovered fully from their initial symptoms. To our knowledge, these are the first reports of patients with such an early-onset and severe inflammatory manifestations of CGD. PMID- 29018442 TI - Lower Expression of MicroRNA-155 Contributes to Dysfunction of Natural Killer Cells in Patients with Chronic Hepatitis B. AB - MicroRNAs have been reported to be regulated in different ways in a variety of liver diseases. As a key modulator of cellular function in both innate and adaptive immunity, the role of miR-155 in chronic hepatitis B virus infection remains largely unknown. Here, we investigated the expression and function of miR 155 in chronic hepatitis B (CHB) patients. It was found that miR-155 expression in peripheral blood mononuclear cells (PBMCs) was lower in CHB patients than healthy controls (HC). Among CHB infection, immune-active (IA) patients with abnormal alanine aminotransferase (ALT) levels had relatively higher miR-155 expression in PBMCs and serum than immune-tolerant carriers, but were comparable to inactive carriers. Moreover, there was a positive correlation between miR-155 expression and ALT levels in CHB patients. Particularly, miR-155 expression in natural killer (NK) cells was significantly downregulated in IA patients compared with HC. Inversely, suppressor of cytokine signaling 1 (SOCS1), a target of miR 155, was upregulated in NK cells of IA patients. Overexpression of miR-155 in NK cells from IA patients led to a decrease in SOCS1 expression and an increase of IFN-gamma production. Finally, accompanied by the normalization of ALT, miR-155 expression in PBMCs gradually decreased during telbivudine or peg-IFN-alpha-2a therapy. Interestingly, higher miR-155 expression at baseline was associated with better response to telbivudine therapy, but not peg-IFN-alpha-2a. In conclusion, our data suggested that miR-155 downregulation in NK cells of IA patients impaired IFN-gamma production by targeting SOCS1, which may contribute to immune dysfunction during CHB infection. Additionally, baseline miR-155 expression could predict the treatment response to telbivudine therapy. PMID- 29018443 TI - Extracellular Vesicles Arising from Apoptotic Cells in Tumors: Roles in Cancer Pathogenesis and Potential Clinical Applications. AB - It is known that apoptotic cells can have diverse effects on the tumor microenvironment. Emerging evidence indicates that, despite its renowned role in tumor suppression, apoptosis may also promote oncogenic evolution or posttherapeutic relapse through multiple mechanisms. These include immunomodulatory, anti-inflammatory, and trophic environmental responses to apoptosis, which drive tumor progression. Our group has introduced the term "onco regenerative niche (ORN)" to describe a conceptual network of conserved cell death-driven tissue repair and regeneration mechanisms that are hijacked in cancer. We propose that, among the key elements of the ORN are extracellular vesicles (EVs), notably those derived from apoptotic tumor cells. EVs are membrane-delimited subcellular particles, which contain multiple classes of bioactive molecules including markers of the cell from which they are derived. EVs are implicated in an increasing number of physiological and pathological contexts as mediators of local and systemic intercellular communication and detection of specific EVs may be useful in monitoring disease progression. Here, we discuss the mechanisms by which EVs produced by apoptotic tumor cells-both constitutively and as a consequence of therapy-may mediate host responsiveness to cell death in cancer. We also consider how the monitoring of such EVs and their cargoes may in the future help to improve cancer diagnosis, staging, and therapeutic efficacy. PMID- 29018444 TI - Mucosa-Associated Lymphoid Tissue Lymphoma Translocation Protein 1 Positively Modulates Matrix Metalloproteinase-9 Production in Alveolar Macrophages upon Toll Like Receptor 7 Signaling and Influenza Virus Infection. AB - Influenza A virus (IAV) infection causes significant morbidity and mortality worldwide. Matrix metalloproteinase-9 (MMP-9) degrades extracellular matrix and is involved in the pathology of influenza. It has been reported that MMP-9 mediates neutrophil migration in IAV infection. Whether alveolar macrophages, the first immune cells that encounter IAV, produce MMP-9, and the mechanism of its regulation have never been investigated. As Toll-like receptor 7 (TLR7) is one of the receptors in innate immune cells that recognize IAV, we used TLR7 agonists and IAV to stimulate alveolar macrophage MH-S cells, primary macrophages, and bone marrow neutrophils. Results showed that MMP-9 expression in macrophages is inducible by TLR7 agonists and IAV, yet, MMP-9 production by neutrophils is not inducible by either one of them. We hypothesized that MMP-9 production in macrophages is mediated through TLR7-NF-kappaB pathway and used microarray to analyze TLR7 agonist-induced NF-kappaB-related genes. Mucosa-associated lymphoid tissue lymphoma translocation protein 1 (MALT1), a positive regulator of NF kappaB, is amongst the top highly induced genes. By use of MALT1 inhibitor (z VRPR-fmk) and alveolar macrophages from MALT1-deficient mice, we found that MMP-9 production is MALT1-dependent. While MALT1 can act as a paracaspase in lymphocytes through degrading various signaling proteins, we discovered that MALT1 functions to reduce a negative regulator of NF-kappaB, cylindromatosis (CYLD), in alveolar macrophages. IAV-induced MMP-9, TNF, and IL-6 in lungs of MALT1-deficient mice are significantly lower than in wild-type mice after intratracheal infection. MALT1-deficient mice also have less body weight loss and longer survival after infection. Taken together, we demonstrated a novel role of MALT1 in regulating alveolar macrophage MMP-9 production whose presence exacerbates the severity of influenza. PMID- 29018446 TI - Autophagy Proteins in Phagocyte Endocytosis and Exocytosis. AB - Autophagy was initially described as a catabolic pathway that recycles nutrients of cytoplasmic constituents after lysosomal degradation during starvation. Since the immune system monitors products of lysosomal degradation via major histocompatibility complex (MHC) class II restricted antigen presentation, autophagy was found to process intracellular antigens for display on MHC class II molecules. In recent years, however, it has become apparent that the molecular machinery of autophagy serves phagocytes in many more membrane trafficking pathways, thereby regulating immunity to infectious disease agents. In this minireview, we will summarize the recent evidence that autophagy proteins regulate phagocyte endocytosis and exocytosis for myeloid cell activation, pathogen replication, and MHC class I and II restricted antigen presentation. Selective stimulation and inhibition of the respective functional modules of the autophagy machinery might constitute valid therapeutic options in the discussed disease settings. PMID- 29018448 TI - IFN-gamma-STAT1-iNOS Induces Myeloid Progenitors to Acquire Immunosuppressive Activity. AB - Autoimmune diseases often induce dysregulated hematopoiesis with altered number and function of hematopoietic stem and progenitor cells (HSPCs). However, there are limited studies on the direct regulation of HSPCs on T cells, which are often detrimental to autoimmunity. Here, we found that in a murine model of Concanavalin A-induced autoimmune hepatitis, LSK (Lineage-Sca-1+c-Kit+)-like cells accumulated in liver, spleen, and bone marrow (BM), which were myeloid progenitors (Lineage-Sca-1-c-Kit+) that upregulated Sca-1 expression upon T cell derived IFN-gamma stimulation. Strikingly, BM LSK-like cells from mice induced by Con A to develop autoimmune hepatitis or alternatively myeloid progenitors from wild-type mice possessed strong in vitro suppressive ability. Their suppressive function depended on T cell-derived IFN-gamma in a paracrine fashion, which induced STAT1 phosphorylation, inducible nitric oxide synthase expression, and nitric oxide production. Blocking IFN-gamma/IFN-gamma receptor interaction, knockout of STAT1, or iNOS inhibition abrogated their suppressive function. In addition, the suppressive function was independent of differentiation; mitomycin C-treated myeloid progenitors maintained T cell suppressive ability in vitro. Our data demonstrate a mechanism of inflammation induced suppressive function of myeloid progenitors, which may participate directly in suppressing T cell mediated immunopathology. PMID- 29018445 TI - Natural Killer T Cells in Cancer Immunotherapy. AB - Natural killer T (NKT) cells are specialized CD1d-restricted T cells that recognize lipid antigens. Following stimulation, NKT cells lead to downstream activation of both innate and adaptive immune cells in the tumor microenvironment. This has impelled the development of NKT cell-targeted immunotherapies for treating cancer. In this review, we provide a brief overview of the stimulatory and regulatory functions of NKT cells in tumor immunity as well as highlight preclinical and clinical studies based on NKT cells. Finally, we discuss future perspectives to better harness the potential of NKT cells for cancer therapy. PMID- 29018449 TI - Mechanisms, Cofactors, and Augmenting Factors Involved in Anaphylaxis. AB - Anaphylaxis is an acute and life-threatening systemic reaction. Many triggers have been described, including food, drug, and hymenoptera allergens, which are the most frequently involved. The mechanisms described in anaphylactic reactions are complex and implicate a diversity of pathways. Some of these mechanisms may be key to the development of the anaphylactic reaction, while others may only modify its severity. Although specific IgE, mast cells, and basophils are considered the principal players in anaphylaxis, alternative mechanisms have been proposed in non-IgE anaphylactic reactions. Neutrophils, macrophages, as well as basophils, have been involved, as have IgG-dependent, complement and contact system activation. A range of cationic substances can induce antibody-independent mast cells activation through MRGPRX2 receptor. Cofactors and augmenting factors may explain why, in some patients, food allergen exposure can cause anaphylaxis, while in other clinical scenario it can be tolerated or elicits a mild reaction. With the influence of these factors, food allergic reactions may be induced at lower doses of allergen and/or become more severe. Exercise, alcohol, estrogens, and some drugs such as Non-steroidal anti-inflammatory drugs, angiotensin converting enzyme inhibitors, beta-blockers, and lipid-lowering drugs are the main factors described, though their mechanisms and signaling pathways are poorly understood. PMID- 29018451 TI - In the Wnt of Paneth Cells: Immune-Epithelial Crosstalk in Small Intestinal Crohn's Disease. AB - Paneth cells, specialized secretory epithelial cells of the small intestine, play a pivotal role in host defense and regulation of microbiota by producing antimicrobial peptides especially-but not only-the human alpha-defensin 5 (HD5) and HD6. In small intestinal Crohn's disease (CD) which is an entity of inflammatory bowel diseases, the expression of HD5 and HD6 is specifically compromised leading to a disturbed barrier and change in the microbial community. Different genetically driven but also non-genetic defects associated with small intestinal CD affect different lines of antimicrobial Paneth cell functions. In this review, we focus on the mechanisms and the crosstalk of Paneth cells and bone marrow-derived cells and highlight recent studies about the role of the Wnt signaling pathway in this connection of ileal CD. In summary, different lines of investigations led by us but also now numerous other groups support and reconfirm the proposed classification of this disease entity as Paneth's disease. PMID- 29018450 TI - Exploring the Immunopathogenesis of Viral Hemorrhagic Fever in Mice with a Humanized Immune System. AB - Viral hemorrhagic fever (VHF) as a disease entity was first codified in the 1930s by soviet scientists investigating patients suffering from hantavirus infection. The group of hemorrhagic fever viruses (HFVs) has since expanded to include members from at least four different virus families: Arenaviridae, Bunyaviridae, Filoviridae, and Flaviviridae, all enveloped single-stranded RNA viruses. After infection, the natural hosts of HFVs do not develop symptoms, whereas humans can be severely affected. This observation and other evidence from experimental data suggest that the human immune system plays a crucial role in VHF pathogenesis. For this reason mice with a human immune system, referred to here as humanized mice (humice), are valuable tools that provide insight into disease mechanisms and allow for preclinical testing of novel vaccinations approaches as well as antiviral agents. In this article, we review the impact of humice in VHF research. PMID- 29018447 TI - TRIM25 in the Regulation of the Antiviral Innate Immunity. AB - TRIM25 is an E3 ubiquitin ligase enzyme that is involved in various cellular processes, including regulation of the innate immune response against viruses. TRIM25-mediated ubiquitination of the cytosolic pattern recognition receptor RIG I is an essential step for initiation of the intracellular antiviral response and has been thoroughly documented. In recent years, however, additional roles of TRIM25 in early innate immunity are emerging, including negative regulation of RIG-I, activation of the melanoma differentiation-associated protein 5 mitochondrial antiviral signaling protein-TRAF6 antiviral axis and modulation of p53 levels and activity. In addition, the ability of TRIM25 to bind RNA may uncover new mechanisms by which this molecule regulates intracellular signaling and/or RNA virus replication. PMID- 29018452 TI - Kv1.3 Channel Blockade Modulates the Effector Function of B Cells in Granulomatosis with Polyangiitis. AB - B cells are central to the pathogenesis of granulomatosis with polyangiitis (GPA), exhibiting both (auto)antibody-dependent and -independent properties. Class-switched memory B cells in particular are a major source of pathogenic autoantibodies. These cells are characterized by high expression levels of Kv1.3 potassium channels, which may offer therapeutic potential for Kv1.3 blockade. In this study, we investigated the effect of the highly potent Kv1.3 blocker ShK-186 on B cell properties in GPA in vitro. Circulating B cell subsets were determined from 33 GPA patients and 17 healthy controls (HCs). Peripheral blood mononuclear cells (PBMCs) from GPA patients, and HCs were stimulated in vitro in the presence and absence of ShK-186. The production of total and antineutrophil cytoplasmic antibodies targeting proteinase 3 (PR3-ANCA) IgG was analyzed by enzyme-linked immunosorbent assay and Phadia EliA, respectively. In addition, effects of ShK 186 on B cell proliferation and cytokine production were determined by flow cytometry. The frequency of circulating switched and unswitched memory B cells was decreased in GPA patients as compared to HC. ShK-186 suppressed the production of both total and PR3-ANCA IgG in stimulated PBMCs. A strong decrease in production of tumor necrosis factor alpha (TNFalpha), interleukin (IL)-2, and interferon gamma was observed upon ShK-186 treatment, while effects on IL-10 production were less pronounced. As such, ShK-186 modulated the TNFalpha/IL-10 ratio among B cells, resulting in a relative increase in the regulatory B cell pool. ShK-186 modulates the effector functions of B cells in vitro by decreasing autoantibody and pro-inflammatory cytokine production. Kv1.3 channel blockade may hold promise as a novel therapeutic strategy in GPA and other B cell-mediated autoimmune disorders. PMID- 29018454 TI - Corrigendum: Functional and Structural Characterization of a Novel HLA-DRB1*04:01 Restricted alpha-Enolase T Cell Epitope in Rheumatoid Arthritis. AB - [This corrects the article on p. 494 in vol. 7, PMID: 27895642.]. PMID- 29018453 TI - Inulin-Type Fructans Modulates Pancreatic-Gut Innate Immune Responses and Gut Barrier Integrity during Experimental Acute Pancreatitis in a Chain Length Dependent Manner. AB - Acute pancreatitis (AP) is a common abdominal inflammatory disorder and one of the leading causes of hospital admission for gastrointestinal disorders. No specific pharmacological or nutritional therapy is available but highly needed. Inulin-type fructans (ITFs) are capable of modifying gut immune and barrier homeostasis in a chemistry-dependent manner and hence potentially applicable for managing AP, but their efficacy in AP has not been demonstrated yet. The current study aimed to examine and compare modulatory effects of ITFs with different degrees of fermentability on pancreatic-gut immunity and barrier function during experimentally induced AP in mice. BALB/c mice were fed short (I)- or long (IV) chain ITFs supplemented diets for up to 3 days before AP induction by caerulein. Attenuating effects on AP development were stronger with ITF IV than with ITF I. We found that long-chain ITF IV attenuated the severity of AP, as evidenced by reduced serum amylase levels, lipase levels, pancreatic myeloperoxidase activity, pancreatic edema, and histological examination demonstrating reduced pancreatic damage. Short-chain ITF I demonstrated only partial protective effects. Both ITF IV and ITF I modulated AP-associated systemic cytokine levels. ITF IV but not ITF I restored AP-associated intestinal barrier dysfunction by upregulating colonic tight junction modulatory proteins, antimicrobial peptides, and improved general colonic histology. Additionally, differential modulatory effects of ITF IV and ITF I were observed on pancreatic and gut immunity: ITF IV supplementation prevented innate immune cell infiltration in the pancreas and colon and tissue cytokine production. Similar effects were only observed in the gut with ITF I and not in the pancreas. Lastly, ITF IV but not ITF I downregulated AP-triggered upregulation of IL-1 receptor-associated kinase 4 (IRAK-4) and phosphor-c-Jun N terminal kinase (p-JNK), and a net decrease of phosphor-nuclear factor kappa light-chain-enhancer of activated B cells (NF-kappaB) p65 (p-NF-kappaB p65) nuclear translocation and activation in the pancreas. Our findings demonstrate a clear chain length-dependent effect of inulin on AP. The attenuating effects are caused by modulating effects of long-chain inulin on the pancreatic-gut immunity via the pancreatic IRAK-4/p-JNK/p-NF-kappaBp65 signaling pathway and on prevention of disruption of the gut barrier. PMID- 29018455 TI - Seed Nutrition and Quality, Seed Coat Boron and Lignin Are Influenced by Delayed Harvest in Exotically-Derived Soybean Breeding Lines under High Heat. AB - The timing of harvest is a major factor affecting seed quality in soybean, particularly in Midsouthern USA, when rain during harvest period is not uncommon. The objective of this research was to evaluate the effects of time of harvest on soybean seed quality (seed composition, germination, seed coat boron, and lignin) in high germinability (HG) breeding lines (50% exotic) developed under high heat. The hypothesis was that seeds of HG lines possess physiological and genetic traits for a better seed quality at harvest maturity and delayed harvest. A 2 year field experiment was conducted under irrigated conditions. Results showed that, at harvest maturity, the exotic HG lines had higher seed protein, oleic acid, sugars, seed coat boron, and seed coat lignin, but lower seed oil compared with the non-exotic checks (Control), confirming our hypothesis. At 28 days after harvest maturity (delayed harvest), the content of seed protein, oleic acid, sugars, seed coat boron, and seed coat lignin were higher in some of the HG lines compared with the checks, indicating a possible involvement of these seed constituents, especially seed coat boron and seed coat lignin, in maintaining seed coat integrity and protecting seed coat against physical damage. Highly significant positive correlations were found between germination and seed protein, oleic acid, sugars, and seed coat boron and seed coat lignin. Highly significant negative correlation was found between germination and oil, linoleic acid, seed coat wrinkling, shattering, and hard seed. Yields of some HG lines were competitive with checks. This research demonstrated that time of harvesting is an important factor influencing seed protein and oil production. Also, since high oleic acid is desirable for oxidative stability, shelf-life and biodiesel properties, using HG lines could positively influence these important traits. This result should suggest to breeders of some of the advantages of selecting for high seed coat boron and lignin, and inform growers of the importance of timely harvest for maintaining high seed quality. PMID- 29018456 TI - Virtual Plants Need Water Too: Functional-Structural Root System Models in the Context of Drought Tolerance Breeding. AB - Developing a sustainable agricultural model is one of the great challenges of the coming years. The agricultural practices inherited from the Green Revolution of the 1960s show their limits today, and new paradigms need to be explored to counter rising issues such as the multiplication of climate-change related drought episodes. Two such new paradigms are the use of functional-structural plant models to complement and rationalize breeding approaches and a renewed focus on root systems as untapped sources of plant amelioration. Since the late 1980s, numerous functional and structural models of root systems were developed and used to investigate the properties of root systems in soil or lab-conditions. In this review, we focus on the conception and use of such root models in the broader context of research on root-driven drought tolerance, on the basis of root system architecture (RSA) phenotyping. Such models result from the integration of architectural, physiological and environmental data. Here, we consider the different phenotyping techniques allowing for root architectural and physiological study and their limits. We discuss how QTL and breeding studies support the manipulation of RSA as a way to improve drought resistance. We then go over the integration of the generated data within architectural models, how those architectural models can be coupled with functional hydraulic models, and how functional parameters can be measured to feed those models. We then consider the assessment and validation of those hydraulic models through confrontation of simulations to experimentations. Finally, we discuss the up and coming challenges facing root systems functional-structural modeling approaches in the context of breeding. PMID- 29018457 TI - Pre-infestation of Tomato Plants by Aphids Modulates Transmission-Acquisition Relationship among Whiteflies, Tomato Yellow Leaf Curl Virus (TYLCV) and Plants. AB - Herbivory defense systems in plants are largely regulated by jasmonate-(JA) and salicylate-(SA) signaling pathways. Such defense mechanisms may impact insect feeding dynamic, may also affect the transmission-acquisition relationship among virus, plants and vectoring insects. In the context of the tomato - whitefly - Tomato Yellow Leaf Curl Virus (TYLCV) biological model, we tested the impact of pre-infesting plants with a non-vector insect (aphid Myzus persicae) on feeding dynamics of a vector insect (whitefly Bemisia tabaci) as well as virus transmission-acquisition. We showed that an aphid herbivory period of 0-48 h led to a transient systemic increase of virus concentration in the host plant (root, stem, and leaf), with the same pattern observed in whiteflies feeding on aphid infested plants. We used real-time quantitative PCR to study the expression of key genes of the SA- and JA-signaling pathways, as well as electrical penetration graph (EPG) to characterize the impact of aphid pre-infestation on whitefly feeding during TYLCV transmission (whitefly to tomato) and acquisition (tomato to whitefly). The impact of the duration of aphid pre-infestation (0, 24, or 48 h) on phloem feeding by whitefly (E2) during the transmission phase was similar to that of global whitefly feeding behavior (E1, E2 and probing duration) during the acquisition phase. In addition, we observed that a longer phase of aphid pre infestation prior to virus transmission by whitefly led to the up-regulation and down-regulation of SA- and JA-signaling pathway genes, respectively. These results demonstrated a significant impact of aphid pre-infestation on the tomato whitefly - TYLCV system. Transmission and acquisition of TYLCV was positively correlated with feeding activity of B. tabaci, and both were mediated by the SA- and JA-pathways. TYLCV concentration during the transmission phases was modulated by up- and down-regulation of SA- and JA-pathways, respectively. The two pathways were inconsistent during the acquisition phase; SA- related genes were up regulated, whereas those up- and down-stream of the JA pathway showed a more complex relationship. These findings enhance our understanding of plant - herbivore - virus interactions, which are potentially important for development of ecologically sound pest and pathogen management programs. PMID- 29018458 TI - Genome-Wide Association Study of Major Agronomic Traits Related to Domestication in Peanut. AB - Peanut (Arachis hypogaea) consists of two subspecies, hypogaea and fastigiata, and has been cultivated worldwide for hundreds of years. Here, 158 peanut accessions were selected to dissect the molecular footprint of agronomic traits related to domestication using specific-locus amplified fragment sequencing (SLAF seq method). Then, a total of 17,338 high-quality single nucleotide polymorphisms (SNPs) in the whole peanut genome were revealed. Eleven agronomic traits in 158 peanut accessions were subsequently analyzed using genome-wide association studies (GWAS). Candidate genes responsible for corresponding traits were then analyzed in genomic regions surrounding the peak SNPs, and 1,429 genes were found within 200 kb windows centerd on GWAS-identified peak SNPs related to domestication. Highly differentiated genomic regions were observed between hypogaea and fastigiata accessions using FST values and sequence diversity (pi) ratios. Among the 1,429 genes, 662 were located on chromosome A3, suggesting the presence of major selective sweeps caused by artificial selection during long domestication. These findings provide a promising insight into the complicated genetic architecture of domestication-related traits in peanut, and reveal whole genome SNP markers of beneficial candidate genes for marker-assisted selection (MAS) in future breeding programs. PMID- 29018459 TI - Sequencing of Single Pollen Nuclei Reveals Meiotic Recombination Events at Megabase Resolution and Circumvents Segregation Distortion Caused by Postmeiotic Processes. AB - Meiotic recombination is a fundamental mechanism to generate novel allelic combinations which can be harnessed by breeders to achieve crop improvement. The recombination landscape of many crop species, including the major crop barley, is characterized by a dearth of recombination in 65% of the genome. In addition, segregation distortion caused by selection on genetically linked loci is a frequent and undesirable phenomenon in double haploid populations which hampers genetic mapping and breeding. Here, we present an approach to directly investigate recombination at the DNA sequence level by combining flow-sorting of haploid pollen nuclei of barley with single-cell genome sequencing. We confirm the skewed distribution of recombination events toward distal chromosomal regions at megabase resolution and show that segregation distortion is almost absent if directly measured in pollen. Furthermore, we show a bimodal distribution of inter crossover distances, which supports the existence of two classes of crossovers which are sensitive or less sensitive to physical interference. We conclude that single pollen nuclei sequencing is an approach capable of revealing recombination patterns in the absence of segregation distortion. PMID- 29018460 TI - The First Genetic Map in Sweet Osmanthus (Osmanthus fragrans Lour.) Using Specific Locus Amplified Fragment Sequencing. AB - Osmanthus fragrans is an ornamental plant of substantial commercial value, and no genetic linkage maps of this species have previously been reported. Specific locus amplified fragment sequencing (SLAF-seq) is a recently developed technology that allows massive single nucleotide polymorphisms (SNPs) to be identified and high-resolution genotyping. In our current research, we generated the first genetic map of O. fragrans using SLAF-seq, which is composed with 206.92 M paired end reads and 173,537 SLAF markers. Among total 90,715 polymorphic SLAF markers, 15,317 polymorphic SLAFs could be used for genetic map construction. The integrated map contained 14,189 high quality SLAFs that were grouped in 23 genetic linkage groups, with a total length of 2962.46 cM and an average distance of 0.21 cM between two adjacent markers. In addition, 23,664 SNPs were identified from the mapped markers. As far as we know, this is the first of the genetic map of O. fragrans. Our results are further demonstrate that SLAF-seq is a very effective method for developing markers and constructing high-density linkage maps. The SNP markers and the genetic map reported in this study should be valuable resource in future research. PMID- 29018461 TI - Template Preparation Affects 16S rRNA High-Throughput Sequencing Analysis of Phyllosphere Microbial Communities. AB - Phyllosphere microbial communities are highly diverse and have important ecological implications; in that context, bacterial identification based on 16S rRNA genes is an important research issue. In studies of phyllosphere microbial communities, microporous filtration and centrifugation are used to collect microorganism samples, but it is unclear which one has a better collection efficiency. In this study, we compared these two microorganism collection methods and investigated the effects of the DNA extraction process on the estimation of microbial community composition and organization. The following four treatments were examined: (A) filtration, resuspension, and direct PCR; (B) filtration, DNA isolation, and PCR; (C) centrifugation, resuspension, and direct PCR; (D) centrifugation, DNA isolation, and PCR. Our results showed that the percentage of chloroplast sequence contaminants was affected by the DNA extraction process. The bacterial compositions clearly differed between treatments A and C, suggesting that the collection method has an influence on the determination of community structure. Compared with treatments B and D, treatments A and C resulted in higher Shannon index values, indicating that the DNA extraction process might reduce the observed phyllosphere microbial alpha diversity. However, with respect to community structure, treatments B and D yielded very similar results, suggesting that the DNA extraction process erases the effect of the collection method. Our findings provide key information to ensure accurate estimates of diversity and community composition in studies of phyllosphere microorganisms. PMID- 29018464 TI - Comparison of Rooting Strategies to Explore Rock Fractures for Shallow Soil Adapted Tree Species with Contrasting Aboveground Growth Rates: A Greenhouse Microcosm Experiment. AB - For tree species adapted to shallow soil environments, rooting strategies that efficiently explore rock fractures are important because soil water depletion occurs frequently. However, two questions: (a) to what extent shallow soil adapted species rely on exploring rock fractures and (b) what outcomes result from drought stress, have rarely been tested. Therefore, based on the expectation that early development of roots into deep soil layers is at the cost of aboveground growth, seedlings of three tree species (Cyclobalanopsis glauca, Delavaya toxocarpa, and Acer cinnamomifolium) with distinct aboveground growth rates were selected from a typical shallow soil region. In a greenhouse experiment that mimics the basic features of shallow soil environments, 1-year old seedlings were transplanted into simulated microcosms of shallow soil overlaying fractured bedrock. Root biomass allocation and leaf physiological activities, as well as leaf delta13C values were investigated and compared for two treatments: regular irrigation and repeated cycles of drought stress. Our results show that the three species differed in their rooting strategies in the context of encountering rock fractures, however, these strategies were not closely related to the aboveground growth rate. For the slowest-growing seedling, C. glauca, percentages of root mass in the fractures, as well as in the soil layer between soil and bedrock increased significantly under both treatments, indicating a specialized rooting strategy that facilitated the exploration of rock fractures. Early investment in deep root growth was likely critical to the establishment of this drought-vulnerable species. For the intermediate-growing, A. cinnamomifolium, percentages of root mass in the bedrock and interface soil layers were relatively low and exhibited no obvious change under either treatment. This limited need to explore rock fractures was compensated by a conservative water use strategy. For the fast-growing, D. toxocarpa, percentages of root mass in the bedrock and interface layers increased simultaneously under drought conditions, but not under irrigated conditions. This drought-induced rooting plasticity was associated with drought avoidance by this species. Although, root development might have been affected by the simulated microcosm, contrasting results among the three species indicated that efficient use of rock fractures is not a necessary or specialized strategy of shallow-soil adapted species. The establishment and persistence of these species relied on the mutual complementation between their species-specific rooting strategies and drought adaptations. PMID- 29018462 TI - A Mini Zinc-Finger Protein (MIF) from Gerbera hybrida Activates the GASA Protein Family Gene, GEG, to Inhibit Ray Petal Elongation. AB - Petal appearance is an important horticultural trail that is generally used to evaluate the ornamental value of plants. However, knowledge of the molecular regulation of petal growth is mostly derived from analyses of Arabidopsis thaliana, and relatively little is known about this process in ornamental plants. Previously, GEG (Gerbera hybrida homolog of the gibberellin [GA]-stimulated transcript 1 [GAST1] from tomato), a gene from the GA stimulated Arabidopsis (GASA) family, was reported to be an inhibitor of ray petal growth in the ornamental species, G. hybrida. To explore the molecular regulatory mechanism of GEG in petal growth inhibition, a mini zinc-finger protein (MIF) was identified using yeast one-hybrid (Y1H) screen. The direct binding of GhMIF to the GEG promoter was verified by using an electrophoretic mobility shift assay and a dual luciferase assay. A yeast two-hybrid (Y2H) revealed that GhMIF acts as a transcriptional activator. Transient transformation assay indicated that GhMIF is involved in inhibiting ray petal elongation by activating the expression of GEG. Spatiotemporal expression analyses and hormone treatment assay showed that the expression of GhMIF and GEG is coordinated during petal development. Taken together, these results suggest that GhMIF acts as a direct transcriptional activator of GEG, a gene from the GASA protein family to regulate the petal elongation. PMID- 29018465 TI - Transgenic Centipedegrass (Eremochloa ophiuroides [Munro] Hack.) Overexpressing S Adenosylmethionine Decarboxylase (SAMDC) Gene for Improved Cold Tolerance Through Involvement of H2O2 and NO Signaling. AB - Centipedegrass (Eremochloa ophiuroides [Munro] Hack.) is an important warm-season turfgrass species. Transgenic centipedgrass plants overexpressing S adenosylmethionine decarboxylase from bermudagrass (CdSAMDC1) that was induced in response to cold were generated in this study. Higher levels of CdSAMDC1 transcript and sperimidine (Spd) and spermin (Spm) concentrations and enhanced freezing and chilling tolerance were observed in transgenic plants as compared with the wild type (WT). Transgenic plants had higher levels of polyamine oxidase (PAO) activity and H2O2 than WT, which were blocked by pretreatment with methylglyoxal bis (guanylhydrazone) or MGBG, inhibitor of SAMDC, indicating that the increased PAO and H2O2 were a result of expression of CdSAMDC1. In addition, transgenic plants had higher levels of nitrate reductase (NR) activity and nitric oxide (NO) concentration. The increased NR activity were blocked by pretreatment with MGBG and ascorbic acid (AsA), scavenger of H2O2, while the increased NO level was blocked by MGBG, AsA, and inhibitors of NR, indicating that the enhanced NR-derived NO was dependent upon H2O2, as a result of expression CdSAMDC1. Elevated superoxide dismutase (SOD) and catalase (CAT) activities were observed in transgenic plants than in WT, which were blocked by pretreatment with MGBG, AsA, inhibitors of NR and scavenger of NO, indicating that the increased activities of SOD and CAT depends on expression of CdSAMDC1, H2O2, and NR-derived NO. Our results suggest that the elevated cold tolerance was associated with PAO catalyzed production of H2O2, which in turn led to NR-derived NO production and induced antioxidant enzyme activities in transgenic plants. PMID- 29018463 TI - The Plant Immunity Regulating F-Box Protein CPR1 Supports Plastid Function in Absence of Pathogens. AB - The redox imbalanced 6 mutant (rimb6) of Arabidopsis thaliana was isolated in a genetic screening approach for mutants with defects in chloroplast-to-nucleus redox signaling. It has an atypically low activation status of the 2-Cys peroxiredoxin-A promoter in the seedling stage. rimb6 shows wildtype-like germination, seedling development and greening, but slower growth and reduced biomass in the rosette stage. Mapping of the casual mutation revealed that rimb6 carries a single nucleotide polymorphism in the gene encoding CONSTITUTIVE EXPRESSER OF PATHOGENESIS RELATED (PR) GENES 1, CPR1 (At4g12560), leading to a premature stop codon. CPR1 is known as a repressor of pathogen signaling and regulator of microtubule organization. Allelism of rimb6 and cpr1 revealed a function of CPR1 in chloroplast stress protection. Expression studies in pathogen signaling mutants demonstrated that CPR1-mediated activation of genes for photosynthesis and chloroplast antioxidant protection is, in contrast to activation of pathogen responses, regulated independently from PAD4-controlled salicylic acid (SA) accumulation. We conclude that the support of plastid function is a basic, SA-independent function of CPR1. PMID- 29018467 TI - Overexpression of SlGRAS40 in Tomato Enhances Tolerance to Abiotic Stresses and Influences Auxin and Gibberellin Signaling. AB - Abiotic stresses are major environmental factors that inhibit plant growth and development impacting crop productivity. GRAS transcription factors play critical and diverse roles in plant development and abiotic stress. In this study, SlGRAS40, a member of the tomato (Solanum lycopersicum) GRAS family, was functionally characterized. In wild-type (WT) tomato, SlGRAS40 was upregulated by abiotic stress induced by treatment with D-mannitol, NaCl, or H2O2. Transgenic tomato plants overexpressing SlGRAS40 (SlGRAS40-OE) were more tolerant of drought and salt stress than WT. SlGRAS40-OE plants displayed pleiotropic phenotypes reminiscent of those resulting from altered auxin and/or gibberellin signaling. A comparison of WT and SlGRAS40-OE transcriptomes showed that the expression of a large number of genes involved in hormone signaling and stress responses were modified. Our study of SlGRAS40 protein provides evidence of how another GRAS plays roles in resisting abiotic stress and regulating auxin and gibberellin signaling during vegetative and reproductive growth in tomato. PMID- 29018466 TI - Differential Lipid Composition and Gene Expression in the Semi-Russeted "Cox Orange Pippin" Apple Variety. AB - Russeting is characterized by a particular rough and brown phenotype, which is mainly due to the accumulation of suberin in the inner part of the epidermal cell walls. In our previous bulk transcriptomic analysis, comparing fully russeted, and waxy apple varieties, showed, in apple fruit skin, a massive decreased expression of cutin, wax and some pentacyclic triterpene biosynthesis genes in the russeted varieties, with an expected concomitant enhanced expression of the suberin biosynthetic genes. In the present work, we performed a deep investigation of the aliphatic composition of the cutin, suberin, waxes, and triterpenes in the waxy and russeted patches of the semi-russeted apple variety "Cox Orange Pippin." A targeted gene expression profiling was performed to validate candidate genes which were identified in our previous work and might be involved in the respective metabolic pathways. Our results showed that a decrease of cuticular waxes, ursolic acid and oleanolic acid, accompanied by an accumulation of alkyl-hydroxycinamates and betulinic acid, occurs in the russeted patches. The suberin monomer composition is characterized by specific occurrence of 20, 22, and 24 carbon aliphatic chains, whereas cutin is mainly represented by common C16 and C18 aliphatic chains. This work depicts, for the first time in apple, the complex composition of suberin, cutin, waxes and triterpenes, and confirms the strong interplay between these epidermal polymers in apple fruit skin. PMID- 29018468 TI - Legume Shrubs Are More Nitrogen-Homeostatic than Non-legume Shrubs. AB - Legumes are characterized as keeping stable nutrient supply under nutrient limited conditions. However, few studies examined the legumes' stoichiometric advantages over other plants across various taxa in natural ecosystems. We explored differences in nitrogen (N) and phosphorus (P) stoichiometry of different tissue types (leaf, stem, and root) between N2-fixing legume shrubs and non-N2-fixing shrubs from 299 broadleaved deciduous shrubland sites in northern China. After excluding effects of taxonomy and environmental variables, these two functional groups differed considerably in nutrient regulation. N concentrations and N:P ratios were higher in legume shrubs than in non-N2-fixing shrubs. N concentrations were positively correlated between the plants and soil for non-N2 fixing shrubs, but not for legume shrubs, indicating a stronger stoichiometric homeostasis in legume shrubs than in non-N2-fixing shrubs. N concentrations were positively correlated among three tissue types for non-N2-fixing shrubs, but not between leaves and non-leaf tissues for legume shrubs, demonstrating that N concentrations were more dependent among tissues for non-N2-fixing shrubs than for legume shrubs. N and P concentrations were correlated within all tissues for both functional groups, but the regression slopes were flatter for legume shrubs than non-N2-fixing shrubs, implying that legume shrubs were more P limited than non-N2-fixing shrubs. These results address significant differences in stoichiometry between legume shrubs and non-N2-fixing shrubs, and indicate the influence of symbiotic nitrogen fixation (SNF) on plant stoichiometry. Overall, N2-fixing legume shrubs are higher and more stoichiometrically homeostatic in N concentrations. However, due to excess uptake of N, legumes may suffer from potential P limitation. With their N advantage, legume shrubs could be good nurse plants in restoration sites with degraded soil, but their P supply should be taken care of during management according to our results. PMID- 29018469 TI - De Novo Assembly of Transcriptome and Development of Novel EST-SSR Markers in Rhododendron rex Levl. through Illumina Sequencing. AB - Transcriptome sequences generated by next-generation sequencing (NGS) technologies can be utilized to rapidly detect and characterize a large number of gene-based microsatellites from different plants. Rhododendron rex Levl. is a perennial woody species from the family Ericaceae and an endangered plant with high ornamental value endemic to Southwestern China. Nevertheless, the genetic and genomic information of R. rex remain unknown. In this study, we performed transcriptome sequencing for R. rex leaf samples, and generated large transcript sequences for functional characterization and development gene-associated SSR markers. A total of 164,242 unigenes were assembled and 115,089 (70.07%) unigenes were successfully annotated in public databases. In addition, a total of 15,314 potential EST-SSRs were identified, and the frequency of SSRs in the R. rex unigenes was 9.32%, with an average of one EST-SSR per 5.65 kb. The most abundant type was repeated di-nucleotide (54.63%), followed by mono- (26.03%) and tri nucleotide (18.51%) repeats. Based on the SSR-containing sequence, 100 primer pairs were randomly selected and synthesized and used for assessment of the polymorphism. Thirty-six primer pairs were polymorphic and revealed polymorphism among 20 individuals from four R. rex populations. A total of 197 alleles were identified, with an average of 5.472 alleles per locus. The Polymorphism Information Content ranged from 0.154 to 0.870, with a mean of 0.482. The newly developed EST-SSR markers exhibited high transferability (58.33-83.33%) among the six subgenera. Thus, these novel EST-SSR markers developed would provide valuable sequence resources for population structure, genetic diversity analysis, and genetic resource assessments of R. rex and its related species. PMID- 29018470 TI - Phakopsora euvitis Causes Unusual Damage to Leaves and Modifies Carbohydrate Metabolism in Grapevine. AB - Asian grapevine rust (Phakopsora euvitis) is a serious disease, which causes severe leaf necrosis and early plant defoliation. These symptoms are unusual for a strict biotrophic pathogen. This work was performed to quantify the effects of P. euvitis on photosynthesis, carbohydrates, and biomass accumulation of grapevine. The reduction in photosynthetic efficiency of the green leaf tissue surrounding the lesions was quantified using the virtual lesion concept (beta parameter). Gas exchange and responses of CO2 assimilation to increasing intercellular CO2 concentration were analyzed. Histopathological analyses and quantification of starch were also performed on diseased leaves. Biomass and carbohydrate accumulation were quantified in different organs of diseased and healthy plants. Rust reduced the photosynthetic rate, and beta was estimated at 5.78, indicating a large virtual lesion. Mesophyll conductance, maximum rubisco carboxylation rate, and regeneration of ribulose-1,5-bisphosphate dependent on electron transport rate were reduced, causing diffusive and biochemical limitations to photosynthesis. Hypertrophy, chloroplast degeneration of mesophyll cells, and starch accumulation in cells close to lesions were observed. Root carbohydrate concentration was reduced, even at low rust severity. Asian grapevine rust dramatically reduced photosynthesis and altered the dynamics of production and accumulation of carbohydrates, unlike strict biotrophic pathogens. The reduction in carbohydrate reserves in roots would support polyetic damage on grapevine, caused by a polycyclic disease. PMID- 29018472 TI - Germination and Seedling Growth of Water Primroses: A Cross Experiment between Two Invaded Ranges with Contrasting Climates. AB - Aquatic ecosystems are vulnerable to biological invasions, and will also be strongly impacted by climate change, including temperature increase. Understanding the colonization dynamics of aquatic invasive plant species is of high importance for preservation of native biodiversity. Many aquatic invasive plants rely on clonal reproduction to spread, but mixed reproductive modes are common. Under future climate changes, these species may favor a sexual reproductive mode. The aim of this study was to test the germination capacity and the seedling growth of two water primrose species, Ludwigia hexapetala and Ludwigia peploides, both invasive in Europe and in the United States. We performed a reciprocal transplant of seeds of L. hexapetala and L. peploides from two invasive ranges into experimental gardens characterized by Oceanic and Mediterranean-type climates. Our results showed that higher temperatures increased or maintained germination percentages and velocity, decreased survivorship of germinants, but increased their production of biomass. The origin of the seeds had low impact on L. hexapetala responses to temperature, but greatly influenced those of L. peploides. The invasiveness of water primroses in ranges with Oceanic climates might increase with temperature. The recruitment from seed banks by these species should be considered by managers to improve the conservation of native aquatic and wetland plant species. PMID- 29018473 TI - QTL Analyses in Multiple Populations Employed for the Fine Mapping and Identification of Candidate Genes at a Locus Affecting Sugar Accumulation in Melon (Cucumis melo L.). AB - Sugar content is the major determinant of both fruit quality and consumer acceptance in melon (Cucumis melo L), and is a primary target for crop improvement. Near-isogenic lines (NILs) derived from the intraspecific cross between a "Piel de Sapo" (PS) type and the exotic cultivar "Songwhan Charmi" (SC), and several populations generated from the cross of PS * Ames 24294 ("Trigonus"), a wild melon, were used to identify QTL related to sugar and organic acid composition. Seventy-eight QTL were detected across several locations and different years, with three important clusters related to sugar content located on chromosomes 4, 5, and 7. Two PS * SC NILs (SC5-1 and SC5-2) sharing a common genomic interval of 1.7 Mb at the top of chromosome 5 contained QTL reducing soluble solids content (SSC) and sucrose content by an average of 29 and 68%, respectively. This cluster collocated with QTL affecting sugar content identified in other studies in lines developed from the PS * SC cross and supported the presence of a stable consensus locus involved in sugar accumulation that we named SUCQSC5.1. QTL reducing soluble solids and sucrose content identified in the "Trigonus" mapping populations, as well as QTL identified in previous studies from other ssp. agrestis sources, collocated with SUCQSC5.1, suggesting that they may be allelic and implying a role in domestication. In subNILs derived from the PS * SC5-1 cross, SUCQSC5.1 reduced SSC and sucrose content by an average of 18 and 34%, respectively, and was fine-mapped to a 56.1 kb interval containing four genes. Expression analysis of the candidate genes in mature fruit showed differences between the subNILs with PS alleles that were "high" sugar and SC alleles of "low" sugar phenotypes for MELO3C014519, encoding a putative BEL1-like homeodomain protein. Sequence differences in the gene predicted to affect protein function were restricted to SC and other ssp. agrestis cultivar groups. These results provide the basis for further investigation of genes affecting sugar accumulation in melon. PMID- 29018471 TI - Diverse Roles of Ethylene in Regulating Agronomic Traits in Rice. AB - Gaseous hormone ethylene has diverse effects in various plant processes. These processes include seed germination, plant growth, senescence, fruit ripening, biotic and abiotic stresses responses, and many other aspects. The biosynthesis and signaling of ethylene have been extensively studied in model Arabidopsis in the past two decades. However, knowledge about the ethylene signaling mechanism in crops and roles of ethylene in regulation of crop agronomic traits are still limited. Our recent findings demonstrate that rice possesses both conserved and diverged mechanism for ethylene signaling compared with Arabidopsis. Here, we mainly focused on the recent advances in ethylene regulation of important agronomic traits. Of special emphasis is its impact on rice growth, flowering, grain filling, and grain size control. Similarly, the influence of ethylene on other relevant crops will be compared. Additionally, interactions of ethylene with other hormones will also be discussed in terms of crop growth and development. Increasing insights into the roles and mechanisms of ethylene in regulating agronomic traits will contribute to improvement of crop production through precise manipulation of ethylene actions in crops. PMID- 29018475 TI - The MicroRNA Interaction Network of Lipid Diseases. AB - Background: Dyslipidemia is one of the major forms of lipid disorder, characterized by increased triglycerides (TGs), increased low-density lipoprotein cholesterol (LDL-C), and decreased high-density lipoprotein-cholesterol (HDL-C) levels in blood. Recently, MicroRNAs (miRNAs) have been reported to involve in various biological processes; their potential usage being a biomarkers and in diagnosis of various diseases. Computational approaches including text mining have been used recently to analyze abstracts from the public databases to observe the relationships/associations between the biological molecules, miRNAs, and disease phenotypes. Materials and Methods: In the present study, significance of text mined extracted pair associations (miRNA-lipid disease) were estimated by one-sided Fisher's exact test. The top 20 significant miRNA-disease associations were visualized on Cytoscape. The CyTargetLinker plug-in tool on Cytoscape was used to extend the network and predicts new miRNA target genes. The Biological Networks Gene Ontology (BiNGO) plug-in tool on Cytoscape was used to retrieve gene ontology (GO) annotations for the targeted genes. Results: We retrieved 227 miRNA-lipid disease associations including 148 miRNAs. The top 20 significant miRNAs analysis on CyTargetLinker provides defined, predicted and validated gene targets, further targeted genes analyzed by BiNGO showed targeted genes were significantly associated with lipid, cholesterol, apolipoprotein, and fatty acids GO terms. Conclusion: We are the first to provide a reliable miRNA-lipid disease association network based on text mining. This could help future experimental studies that aim to validate predicted gene targets. PMID- 29018474 TI - Six-Year Nitrogen-Water Interaction Shifts the Frequency Distribution and Size Inequality of the First-Order Roots of Fraxinus mandschurica in a Mixed Mature Pinus koraiensis Forest. AB - The variation in fine root traits in terms of size inequality at the individual root level can be identified as a strategy for adapting to the drastic changes in soil water and nutrient availabilities. The Gini and Lorenz asymmetry coefficients have been applied to describe the overall degree of size inequality, which, however, are neglected when conventional statistical means are calculated. Here, we used the Gini coefficient, Lorenz asymmetry coefficient and statistical mean in an investigation of Fraxinus mandschurica roots in a mixed mature Pinus koraiensis forest on Changbai Mountain, China. We analyzed 967 individual roots to determine the responses of length, diameter and area of the first-order roots and of branching intensity to 6 years of nitrogen addition (N), rainfall reduction (W) and their combination (NW). We found that first-order roots had a significantly greater average length and area but had smaller Gini coefficients in NW plots compared to in control plots (CK). Furthermore, the relationship between first-order root length and branching intensity was negative in CK, N, and W plots but positive in NW plots. The Lorenz asymmetry coefficient was >1 for the first-order root diameter in NW and W plots as well as for branching intensity in N plots. The bimodal frequency distribution of the first-order root length in NW plots differed clearly from the unimodal one in CK, N, and W plots. These results demonstrate that not only the mean but also the variation and the distribution mode of the first-order roots of F. mandschurica respond to soil nitrogen and water availability. The changes in size inequality of the first order root traits suggest that Gini and Lorenz asymmetry coefficients can serve as informative parameters in ecological investigations of roots to improve our ability to predict how trees will respond to a changing climate at the individual root level. PMID- 29018476 TI - Recurrent and Prolonged Infections in a Child with a Homozygous IFIH1 Nonsense Mutation. AB - In an Egyptian girl born to consanguineous parents, whole-exome sequencing (WES) identified a homozygous mutation in PHGDH, c.1273G>A (p.Val425Met), indicating 3 phosphoglycerate dehydrogenase deficiency. This diagnosis was compatible with the patient's microcephaly, severe psychomotor retardation, seizures and cataracts. However, she additionally suffered from recurrent (at least monthly) episodes of prolonged and severe chest infections requiring hospitalization, suggesting a secondary, predisposing and potentially Mendelian, condition. A local reactivation of an EBV infection in the respiratory tract was detected after a recent chest infection, likely representing an opportunistic infection based on a compromised immune system. Further inspection of WES data revealed a homozygous nonsense mutation, c.2665A>T (p.Lys889*), in IFIH1, encoding MDA5. MDA5 detects long viral double-stranded RNA that is generated during replication of picorna viruses, and thereby activates the type I interferon signaling pathway. The results of Western blot analysis of protein from cultured fibroblasts of the patient indicates absence of wild type MDA5/IFIH1, compatible with NMD. We propose that, analogous to the severe course of primary influenza infection due to biallelic deficiency of a downstream effector, IRF7, homozygous loss of IFIH1 defines a novel Mendelian immunodeficiency disorder that increases susceptibility to severe viral infections. This is contrasted to heterozygous gain-of-function IFIH1 mutations in autoimmune diseases. Our findings highlight the potential of comprehensive genomic investigations in patients from consanguineous families to identify monogenic predispositions to severe infections. PMID- 29018477 TI - Commentary: Grand challenge: ELSI in a changing global environment. PMID- 29018478 TI - Ultrafast Comparison of Personal Genomes via Precomputed Genome Fingerprints. AB - We present an ultrafast method for comparing personal genomes. We transform the standard genome representation (lists of variants relative to a reference) into "genome fingerprints" via locality sensitive hashing. The resulting genome fingerprints can be meaningfully compared even when the input data were obtained using different sequencing technologies, processed using different pipelines, represented in different data formats and relative to different reference versions. Furthermore, genome fingerprints are robust to up to 30% missing data. Because of their reduced size, computation on the genome fingerprints is fast and requires little memory. For example, we could compute all-against-all pairwise comparisons among the 2504 genomes in the 1000 Genomes data set in 67 s at high quality (21 MUs per comparison, on a single processor), and achieved a lower quality approximation in just 11 s. Efficient computation enables scaling up a variety of important genome analyses, including quantifying relatedness, recognizing duplicative sequenced genomes in a set, population reconstruction, and many others. The original genome representation cannot be reconstructed from its fingerprint, effectively decoupling genome comparison from genome interpretation; the method thus has significant implications for privacy preserving genome analytics. PMID- 29018480 TI - Comparison of Esophageal Function Tests in Chinese Patients with Functional Heartburn and Reflux Hypersensitivity. AB - OBJECTIVE: To investigate the differences in the results of esophageal function tests for functional heartburn (FH) and reflux hypersensitivity (RH). METHODS: Patients with FH and RH and healthy volunteers (HVs) from the Department of Gastroenterology, Beijing Anzhen Hospital and Beijing Chao-Yang hospital, who underwent high-resolution manometry and impedance (HRIM), and 24-hour multichannel intraluminal impedance and pH recording (MII/pH) between 2014 and 2016, were enrolled in this study. RESULTS: 36 HV, 147 FH patients, and 91 RH patients were enrolled. The postreflux swallow-induced peristaltic wave index (PSPW index) and mean nocturnal baseline impedance (MNBI) values were significantly lower in RH than in FH and HV. The ineffective esophageal motility (IEM), fragmented peristalsis rates, total bolus exposure, proximal total reflux events, and distal total reflux events were significantly greater in RH than in FH and HV. CONCLUSIONS: Compared to HV and FH patients, RH patients exhibited greater IEM and fragmented peristalsis rates, a greater total bolus exposure, more proximal total and distal total reflux events, and reduced chemical clearance and mucosal integrity. By using the above described parameters, HRIM and MII/pH assays could be used to correctly classify RH and FH and hence allow physicians to provide adequate relief from associated symptoms. PMID- 29018481 TI - Comparative Study between Plastic and Metallic Stents for Biliary Decompression in Patients with Distal Biliary Obstruction. AB - This paper presents a retrospective comparison of plastic versus metallic stents in the drainage of malignant distal biliary obstructions. We compared single plastic stents (SPS), multiple plastic stents (MPS), and metallic stents (SEMS) regarding clinical decrease of TB < 2.0 mg/dL, long-term patency, and adverse event. 58 patients (38 women) with MDBO were included. Diagnoses were 44 pancreatic adenocarcinoma (74.6%), 9 metastasis (15.5%), 3 pancreatic neuroendocrine tumors (5.1%), and 2 adenocarcinoma in the major papilla (3.4%). The number of patients included in the SPS, MPS, and SEMS was 17, 6, and 35, respectively. Comparing the survival curves with respect to obstruction, we observed a lower mean permeability of the SPS compared to that of the MPS with p < 0.003 and of the SEMS group (p < 0.01). There was no statistical difference between the use of MPS, despite the small number of patients compared to the use of SEMS (p < 0.13) to reach the satisfactory levels of bilirubin. PMID- 29018479 TI - Epigenetic Regulation of Cellular Senescence and Aging. AB - Aging is characterized by functional decline of diverse organs and an increased risk for several diseases. Therefore, a high interest exists in understanding the molecular mechanisms that stimulate aging at all levels, from cells and tissues to organs and organisms, in order to develop ways to promote healthy aging. While many molecular and biochemical mechanisms are already understood in some detail, the role of changes in epigenetic regulation has only begun to be considered in recent years. The age-dependent global reduction in heterochromatin, along with site-specific changes in the patterns of DNA methylation and modification of histones, have been observed in several aging model systems. However, understanding of the precise role of such changes requires further research. In this review, we will discuss the role of epigenetic regulation in aging and indicate future research directions that will help elucidate the mechanistic details of it. PMID- 29018482 TI - The Advances of Laparoscopic Gastrectomy for Gastric Cancer. AB - Laparoscopic gastrectomy is evolving. With the increasing expertise and experience of oncologic surgeons in the minimally invasive surgery for gastric cancer, the indication for laparoscopic gastrectomy is expanding to advanced cases. Many studies have demonstrated the benefits of minimally invasive surgery, including reduced risk of surgery-related injury, reduced blood loss, less pain, and earlier recovery. In order to establish concrete evidence for the suitability of minimal invasive surgery for gastric cancer, many multicenter RCTs, comparing the short- and long-term outcomes of laparoscopic versus open surgery, are in progress. Advances in laparoscopic gastrectomy are moving toward increasingly minimally invasive approaches that enable the improvement of the quality of life of patients, without compromising on oncologic safety. PMID- 29018483 TI - The Angiogenic Potential of DPSCs and SCAPs in an In Vivo Model of Dental Pulp Regeneration. AB - Adequate vascularization, a restricting factor for the survival of engineered tissues, is often promoted by the addition of stem cells or the appropriate angiogenic growth factors. In this study, human dental pulp stem cells (DPSCs) and stem cells from the apical papilla (SCAPs) were applied in an in vivo model of dental pulp regeneration in order to compare their regenerative potential and confirm their previously demonstrated paracrine angiogenic properties. 3D-printed hydroxyapatite scaffolds containing DPSCs and/or SCAPs were subcutaneously transplanted into immunocompromised mice. After twelve weeks, histological and ultrastructural analysis demonstrated the regeneration of vascularized pulp-like tissue as well as mineralized tissue formation in all stem cell constructs. Despite the secretion of vascular endothelial growth factor in vitro, the stem cell constructs did not display a higher vascularization rate in comparison to control conditions. Similar results were found after eight weeks, which suggests both osteogenic/odontogenic differentiation of the transplanted stem cells and the promotion of angiogenesis in this particular setting. In conclusion, this is the first study to demonstrate the successful formation of vascularized pulp-like tissue in 3D-printed scaffolds containing dental stem cells, emphasizing the promising role of this approach in dental tissue engineering. PMID- 29018485 TI - Stem Cell-Based Therapy in Transplantation and Immune-Mediated Diseases. PMID- 29018486 TI - Serum and Liver Tissue Metabonomic Study on Fatty Liver in Rats Induced by High Fat Diet and Intervention Effects of Traditional Chinese Medicine Qushi Huayu Decoction. AB - Qushi Huayu Decoction (QSHY), clinically derived, consists of five crude drugs, commonly used in treating fatty liver in a clinical setting. However, little is known about its metabolomics study. Herein, the serum and liver tissue metabolomics approach, based on gas chromatography coupled to spectrometry (GC/MS), was employed to evaluate the efficacy and the mechanism underlying QSHY in a rat model of high-fat diet-induced fatty liver. With pattern recognition analysis of serum and liver tissue metabolite profile, a clear separation of model group and control group was acquired for serum and liver tissue samples, respectively. The QSHY group showed a predisposition towards recovery mimicking the control group, which was in agreement with the biochemical alterations and histological results. 23 candidate biomarkers were identified in the serum and liver tissue samples that were utilized for exploring the underlying mechanism. The present study suggests that QSHY has significant anti-fatty liver effects on high-fat diet-induced fatty liver in rats, which might be attributed to regulating the dysfunction of beta-alanine metabolism, alanine, aspartate, and glutamate metabolism, glycine, serine, and threonine metabolism, pyruvate metabolism, and citrate cycle. Thus, metabolomics is a useful tool in the evaluation of the efficacy and elucidation of the mechanism underlying the complex traditional Chinese medicine prescriptions. PMID- 29018484 TI - Infrapatellar Fat Pad Stem Cells: From Developmental Biology to Cell Therapy. AB - The ideal cell type to be used for cartilage therapy should possess a proven chondrogenic capacity, not cause donor-site morbidity, and should be readily expandable in culture without losing their phenotype. There are several cell sources being investigated to promote cartilage regeneration: mature articular chondrocytes, chondrocyte progenitors, and various stem cells. Most recently, stem cells isolated from joint tissue, such as chondrogenic stem/progenitors from cartilage itself, synovial fluid, synovial membrane, and infrapatellar fat pad (IFP) have gained great attention due to their increased chondrogenic capacity over the bone marrow and subcutaneous adipose-derived stem cells. In this review, we first describe the IFP anatomy and compare and contrast it with other adipose tissues, with a particular focus on the embryological and developmental aspects of the tissue. We then discuss the recent advances in IFP stem cells for regenerative medicine. We compare their properties with other stem cell types and discuss an ontogeny relationship with other joint cells and their role on in vivo cartilage repair. We conclude with a perspective for future clinical trials using IFP stem cells. PMID- 29018487 TI - The Effects of Curcumin on Wound Healing in a Rat Model of Nasal Mucosal Trauma. AB - We explored the effects of topical curcumin on the healing of nasal mucosal wounds. A total of 32 Sprague-Dawley Albino rats were randomized in equal numbers into four groups, and unilateral nasal wounds were created using an interdental brush. Group 1 (the sham-control group) contained untreated rats with traumatized right-side nasal cavities; Group 2 and 3 rats were similarly traumatized and treated with topical curcumin (5 and 10 mg/mL) dissolved in dimethyl sulfoxide daily for 7 days after trauma; Group 4 rats were treated with topical dimethyl sulfoxide only. All rats were decapitated on day 15 and the healing sites evaluated by blinded observers in terms of the presence of cellular hyperplasia, goblet cell hypertrophy and degeneration, leucocytic infiltration, ciliary loss and degeneration, edema, and vascular dilation. On histopathological evaluation, all of cellular hyperplasia, leukocytic infiltration, and edema were significantly reduced in Group 3 compared with Group 1 (p = 0.001, p = 0.004, and p = 0.008, resp.). Thus, curcumin reduced the inflammatory response and significantly accelerated wound healing. PMID- 29018488 TI - Higher resting metabolic rate in long-lived breeding Ansell's mole-rats (Fukomys anselli). AB - BACKGROUND: Reproduction is an energetically expensive process that supposedly impairs somatic integrity in the long term, because resources are limited and have to be allocated between reproduction and somatic maintenance, as predicted by the life history trade-off model. The consequence of reduced investment in somatic maintenance is a gradual deterioration of function, i.e. senescence. However, this classical trade-off model gets challenged by an increasing number of contradicting studies. Here we report about an animal model, which adds more complexity to the ongoing debate. Ansell's mole-rats are long-lived social subterranean rodents with only the founder pair reproducing, while most of their offspring remain in the parental burrow system and do not breed. Despite of a clear reproductive trade-off, breeders live up to twice as long as non-breeders, a unique feature amongst mammals. METHODS: We investigated mass-specific resting metabolic rates (msRMR) of breeders and non-breeders to gain information about the physiological basis underlying the reproduction-associated longevity in Ansell's mole-rats. We assessed the thermoneutral zone (TNZ) for breeders and non breeders separately by means of indirect calorimetry. We applied generalized linear mixed-effects models for repeated measurements using the msRMR in the respective TNZs. RESULTS: TNZ differed between reproductive and non-reproductive Ansell's mole-rats. Contrary to classical aging models, the shorter-lived non breeders had significantly lower msRMR within the thermoneutral zone compared to breeders. CONCLUSION: This is the first study reporting a positive correlation between msRMR and lifespan based on reproductive status. Our finding contradicts common aging theories, but supports recently introduced models which do not necessarily link reproductive trade-offs to lifespan reduction. PMID- 29018489 TI - Effects of resveratrol on glucose control and insulin sensitivity in subjects with type 2 diabetes: systematic review and meta-analysis. AB - Although the regular consumption of resveratrol has been known to improve glucose homeostasis and reverse insulin resistance in type 2 diabetes mellitus (T2DM), the reported results are inconsistent. Thus, we aimed to assess the effects of resveratrol on glycemic control and insulin sensitivity among patients with T2DM. We searched for relevant articles published until June 2017 on PubMed-Medline, Embase, Cochrane Library, and Web of Science. Randomized controlled trials in T2DM patients administered with resveratrol as intervention were included. After study selection, quality assessment and data extraction were performed independently by two authors, and STATA and RevMan software were used for statistical analysis. Nine randomized controlled trials involving 283 participants were included. Meta-analysis showed that resveratrol significantly improved the fasting plasma glucose ( -0.29 mmol/l, 95% CI: -0.51, -0.06, p < 0.01) and insulin levels (-0.64 U/mL, 95% CI: -0.95, -0.32, p < 0.0001). The drug also reduced homeostasis model assessment of insulin resistance (HOMA-IR) index, systolic blood pressure, and diastolic blood pressure among participants with T2DM. The changes in hemoglobin A1c (HbA1c), low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol were negligible. Subgroup analysis comparing the resveratrol supplementation doses of < 100 mg/d versus >= 100 mg/d revealed a significant difference in fasting plasma glucose. In particular, the latter dose presented more favorable results. This meta-analysis provides evidence that supplementation of resveratrol may benefit management of T2DM. PMID- 29018491 TI - Perception of Noise Pollution in a Youth and Adults School in Curitiba-PR. AB - Introduction Nowadays noise remains the third largest cause of environmental pollution on Earth. It appears that despite the existing noise control legislation the issue deserves further supervision by the public authorities so that the ceilings established for the various activities are observed. People exposed to noise are more likely to develop numerous auditory and non-auditory problems directly impacting persona family and working life. Objectives The objective of this study is to research and consequently understand how the population of students of a youth and adult school in Curitiba perceives noise pollution as well as look into the actions that the school adopts in order to guide the students on the topic. Method We applied a structured questionnaire to 120 individuals and assessed the following variables: characterization of the place of residence occupation leisure health and perception of soundscapes. We also applied a closed questionnaire about educational actions for noise pollution to the school's geography teacher. Results Questionnaire responses show that people perceive noise in the most diverse environments they frequent and are able to identify the source of the noise but this perception proved fragile as the majority does not take measures to prevent or mitigate these noises. At school there are no actions aimed at environmental education on the subject studied. Conclusion The studied group does not perceive the noise as a harmful agent and does not prevent themselves from it and the school not work contents related to noise pollution leaving a significant gap in the awareness process of this population. PMID- 29018490 TI - The promotion of nephropathy by Porphyromonas gingivalis lipopolysaccharide via toll-like receptors. AB - BACKGROUND: Recently, we reported that toll-like receptor (TLR)2 and TLR4 localized on the glomerular endothelium in the glomeruli of streptozotocin (STZ) induced type 1 diabetic mice and high fat diet feed-induced type 2 diabetic mice, and that periodontal pathogen Porphyromonas gingivalis LPS (Pg-LPS) administration lowered the survival rate of diabetic mice. The present study aims to examine the effect of TLR4 blocking on the suppression of Pg-LPS-induced diabetic nephropathy. METHODS: The survival rate and morphological/biochemical features for streptozotocin-induced diabetic mice with Pg-LPS and TLR4 blocker eritoran administration were investigated by reporter gene assay, urine and blood analysis, immunohistochemistry, and real time-PCR. RESULTS AND CONCLUSIONS: All of the diabetic mice administered Pg-LPS were euthanized within the survival period of almost all of the diabetic mice. The blood urea nitrogen and creatinine, expression of TLR2 and TGF-b, and type 1 collagen accumulation, in the diabetic mice increased significantly with the Pg-LPS administration. In spite of the limited TLR4 activation with Pg-LPS, the TLR4 blocker eritoran decreased blood urea nitrogen and creatinine, and raised the survival rate of the Pg-LPS-administered diabetic mice slightly. The high expression levels of TLR2, TGF-b, and type 1 collagen in Pg-LPS-administered diabetic mice decreased with eritoran. Nuclear STAT3 which enhances TLR2 expression was detected in the TLR2 expressing glomeruli of diabetic mice. The TLR2 and STAT3 gene expression increased by the Pg-LPS administration but decreased with eritoran. These may suggest that Pg-LPS-induced diabetic nephropathy is mainly dependent on TLR2 signaling on glomerular endothelial cells, and that TLR4 blocker eritoran may play a role to slow the progress of diabetic nephropathy. PMID- 29018492 TI - Air and Bone Conduction Frequency-specific Auditory Brainstem Response in Children with Agenesis of the External Auditory Canal. AB - Introduction The tone-evoked auditory brainstem responses (tone-ABR) enable the differential diagnosis in the evaluation of children until 12 months of age, including those with external and/or middle ear malformations. The use of auditory stimuli with frequency specificity by air and bone conduction allows characterization of hearing profile. Objective The objective of our study was to compare the results obtained in tone-ABR by air and bone conduction in children until 12 months, with agenesis of the external auditory canal. Method The study was cross-sectional, observational, individual, and contemporary. We conducted the research with tone-ABR by air and bone conduction in the frequencies of 500 Hz and 2000 Hz in 32 children, 23 boys, from one to 12 months old, with agenesis of the external auditory canal. Results The tone-ABR thresholds were significantly elevated for air conduction in the frequencies of 500 Hz and 2000 Hz, while the thresholds of bone conduction had normal values in both ears. We found no statistically significant difference between genders and ears for most of the comparisons. Conclusion The thresholds obtained by bone conduction did not alter the thresholds in children with conductive hearing loss. However, the conductive hearing loss alter all thresholds by air conduction. The tone-ABR by bone conduction is an important tool for assessing cochlear integrity in children with agenesis of the external auditory canal under 12 months. PMID- 29018493 TI - Variation in the Hearing Threshold in Women during the Menstrual Cycle. AB - Introduction The hormonal changes that occur during the menstrual cycle and their relationship with hearing problems have been studied. However, they have not been well explained. Objective The objective of our study is to investigate the variation in hearing thresholds in women during the menstrual cycle. Method We conducted a cohort and longitudinal study. It was composed of 30 volunteers, aged 18-39 years old, of which 20 were women during the phases of the menstrual cycle and 10 were men (control group) who underwent audiometry and impedance exams, to correlate the possible audiological changes in each phase of the menstrual cycle. Results There were significant changes in hearing thresholds observed during the menstrual cycle phases in the group of women who used hormonal contraceptives and the group who did not use such contraceptives. Improved hearing thresholds were observed in the late follicular phase in the group who did not use hormonal contraceptives and the hearing thresholds at high frequencies were better. Throughout the menstrual cycle phases, the mean variation was 3.6 db HL between weeks in the group who used hormonal contraceptives and 4.09 db HL in the group who did not use them. Conclusions The present study found that there may be a relationship between hearing changes and hormonal fluctuations during the menstrual cycle based on changes in the hearing thresholds of women. In addition, this study suggests that estrogen has an otoprotective effect on hearing, since the best hearing thresholds were found when estrogen was at its maximum peak. PMID- 29018494 TI - Evaluation of the Efficacy and Tolerability of Oral Ciprofloxacin used in the Comprehensive Treatment of External Bacterial Otitis: An Observational Prospective Study. AB - Introduction Otitis Externa is common ear infection with a prevalence of 1%. Objective The objective of this study is to evaluate the clinical and microbiological efficacy and safety profile with oral ciprofloxacin in the external bacterial otitis (EBO) management. Methods This is a prospective observational study conducted with EBO outpatients referred to the otorhinolaryngology center in Moscow between March and August 2013. Our study included patients from two cohorts, acute external bacterial otitis (AEBO) - Group 1 - and exacerbation of chronic otitis externa (CEBO) - Group 2. We administered Ciprofloxacin 500 mg twice daily with standard topical EBO treatment for up to 10 days. Patients underwent evaluation on study visit days 1, 3, 5, and 10 for the severity. Bacteriological examination of ear canal cultures took place on Day 1 and Day 10. Results We collected data from 60 EBO outpatients (AEBO: N = 30 and CEBO: N = 30). Swimming was the major risk factor associated with the disease in addition to the most common pathogenic organisms - Staphylococcus aureus and Pseudomonas aeruginosa . was We attained complete resolution of the inflammatory process in 28 (93%) and 27 (90%) patients in the AEBO and CEBO group, respectively. We confirmed this by microbiological test with almost complete eradication of the causative organisms. Overall, we observed good positive dynamics of ear canal with no major side effects. Conclusion We found that Ciprofloxacin 500 mg, when administered orally twice daily for 7 to 10 days in otitis externa patients is clinically and microbiologically effective and comparatively safer than other antimicrobials. PMID- 29018495 TI - Frequency Dependence Hearing Loss Evaluation in Perforated Tympanic Membrane. AB - Introduction Tympanic membrane perforation is a relatively common problem that predisposes patients to varying degrees of conductive hearing loss. Objective The objective of this study is to evaluate and analyze the frequency dependence hearing loss in tympanic membrane perforation based on the size and the site of perforation. Methods For the study, I selected 71 patients' (89) ears for the cross-sectional study with tympanic membrane perforations; I examined the size and the site of perforations under the microscope and classified them into small, moderate, large, and subtotal perforations, and into anterior central, posterior central, malleolor central, and big central perforations. I measured mean level of speech frequencies hearing loss, and its relation with the site and the size of the perforation analyzed. Results The mean hearing loss at different sizes of the perforation at all speech frequencies was 37.4 dB, with ABG of 26.6 dB, and its maximum loss was detected in subtotal perforation of 42.3 dB, with ABG of 33.7 dB, at 500 Hz frequency, while in relation to the sites, it was 38.2 dB, with ABG of 26.8 dB, and its maximum loss was detected in big central site perforation of 42.1 dB, with ABG of 33.6 dB, at 500 Hz frequency. Conclusions The hearing loss was proportionally related with the sizes of the perforations, and the posterior site had greater impact on the hearing than anterior site perforations. This was also applied to the frequency dependence hearing level, as was detected to be worse at lower frequencies as 500 Hz, than those of 1000-2000 Hz. PMID- 29018496 TI - Surgical Treatment of Acquired Atresia of the External Auditory Ear Canal. AB - Introduction Acquired atresia of the external auditory canal is characterized by the formation of fibrous tissue in the medial part. The causes include chronic otitis externa, perforated chronic otitis media, postoperative or idiopathic healing problems. Acquired atresia presents with hearing loss and can be associated with otorrhea. Objective We analyzed the results of surgery after six months and two years by checking (1) pre- and postoperative hearing thresholds; (2) presence of otorrhea; and (3) whether a dry and patent ear canal is achieved. Methods We conducted this retrospective study at a tertiary referral center. In total, 27 ears underwent treatment with resection of the fibrotic plug followed by transplantation of a split-thickness skin graft covering the bare bone and tympanic membrane. When necessary, we combined this with a myringoplasty and a (meato-) canalplasty. Results Otorrhea was present in 59.3% of the patients initially and in 14.8% at six months and 11% at two years postoperative. A dry and patent ear canal was obtained in 55.6% after six months and in 89% of the patients after two years ( n = 27). The pure tone average before surgery was 39.1 dBHL (SD = 20 dBHL), at six months 31.4 dBHL (SD = 16.4 dBHL), and at 24 months postop 30.9 dBHL (SD = 17.1 dBHL). We observed a statistically significant improvement of hearing in 63% of the patients at six months ( p = 0.005) and in 65% after two years ( p = 0.022). Conclusions Treatment of acquired atresia remains a challenge. Using the appropriate surgical technique, including skin grafting and regular postoperative check-up, rendered excellent results regarding otorrhea and a moderate improvement of hearing was achieved in 65% of the patients after two years. PMID- 29018497 TI - P300: Waves Identification with and without Subtraction of Traces. AB - Introduction The P300 test requires well-defined and unique criteria, in addition to training for the examiners, for a uniform analysis of studies and to avoid variations and errors in the interpretation of measurement results. Objectives The objective of this study is to verify whether there are differences in P300 with and without subtraction of traces of standard and nonstandard stimuli. Method We conducted this study in collaboration with two research electrophysiology laboratories. From Laboratory 1, we selected 40 tests of subjects between 7-44 years, from Laboratory 2, we selected 83 tests of subjects between 18-44 years. We first performed the identification with the nonstandard stimuli; then, we subtracted the nonstandard stimuli from the standard stimuli. The examiners identified the waves, performing a descriptive and comparative analysis of traces with and without subtraction. Results After a comparative analysis of the traces with and without subtraction, there was no significant difference when compared with analysis of traces in both laboratories, within the conditions, of right ears ( p = 0.13 and 0.28 for differences between latency and amplitude measurements) and left ears ( p = 0.15 and 0.09 for differences between latency and amplitude measurements) from Laboratory 1. As for Laboratory 2, when investigating both ears, results did not identify significant differences ( p = 0.098 and 0.28 for differences between latency and amplitude measurements). Conclusion There was no difference verified in traces with and without subtraction. We suggest the identification of this potential performed through nonstandard stimuli. PMID- 29018498 TI - Cortical Auditory Evoked Potentials with Simple (Tone Burst) and Complex (Speech) Stimuli in Children with Cochlear Implant. AB - Introduction The registry of the component P1 of the cortical auditory evoked potential has been widely used to analyze the behavior of auditory pathways in response to cochlear implant stimulation. Objective To determine the influence of aural rehabilitation in the parameters of latency and amplitude of the P1 cortical auditory evoked potential component elicited by simple auditory stimuli (tone burst) and complex stimuli (speech) in children with cochlear implants. Method The study included six individuals of both genders aged 5 to 10 years old who have been cochlear implant users for at least 12 months, and who attended auditory rehabilitation with an aural rehabilitation therapy approach. Participants were submitted to research of the cortical auditory evoked potential at the beginning of the study and after 3 months of aural rehabilitation. To elicit the responses, simple stimuli (tone burst) and complex stimuli (speech) were used and presented in free field at 70 dB HL. The results were statistically analyzed, and both evaluations were compared. Results There was no significant difference between the type of eliciting stimulus of the cortical auditory evoked potential for the latency and the amplitude of P1. There was a statistically significant difference in the P1 latency between the evaluations for both stimuli, with reduction of the latency in the second evaluation after 3 months of auditory rehabilitation. There was no statistically significant difference regarding the amplitude of P1 under the two types of stimuli or in the two evaluations. Conclusion A decrease in latency of the P1 component elicited by both simple and complex stimuli was observed within a three-month interval in children with cochlear implant undergoing aural rehabilitation. PMID- 29018499 TI - Differentiating Benign from Malignant Sinonasal Lesions: Feasibility of Diffusion Weighted MRI. AB - Introduction Appearance of nasal masses on routine CT and MRI are not pathognomonic. We utilized the apparent diffusion coefficient (ADC) value obtained from diffusion weighted image (DWI) to detect the differences in the microstructures of tumor and non-tumor tissues. Objective The objective of our study was to evaluate the diagnostic role of DWI and ADC values in differentiating between malignant and benign sinonasal lesions and its correlation with histopathological results as the reference standard. Methods Patients with nasal and / or paranasal mass underwent CT, MRI, and DWI before any surgical intervention. We used diagnostic sinonasal endoscopy and biopsy to confirm the diagnosis after MRI. Results When we used ADC value of (1.2 * 10-3 mm2/s) as a cut-off value for differentiating benign from malignant sinonasal lesions, we achieved 90% accuracy, 100% sensitivity, 88.4% specificity, 77.8% positive predictive value, and 100% negative predictive value. At this cut-off, benign lesions show statistically significant higher ADC value than malignant tumors. Conclusion DW MRI and ADC value calculation are promising quantitative methods helping to differentiate between malignant and benign sinonasal lesions. Thus, they are effective methods compared with other conventional methods with short imaging time thus it is recommended to be incorporated into routine evaluations. PMID- 29018500 TI - Computed Tomography Measurement of Inferior Turbinate in Asymptomatic Adult. AB - Introduction The inferior turbinate (IT) is the most susceptible turbinate to enlargement causing nasal obstruction. The common belief ascribes most of the enlargement of the IT to mucosal elements. Objective This study aimed to investigate the detailed computed tomography (CT) measurement of the IT in asymptomatic adult by determining the thickness of both the non-bony (mucosa) and bony parts and their relation to nasal air space in different related areas of the nose. Methods We included in the study paranasal CT scans of 108 individuals (216 IT) that had no paranasal pathology. We acquired axial images with multiplanar reformates to obtain delicate details in coronal and sagittal planes for all subjects. We took separate measurements of the thickness of the medial mucosa, bones, and lateral mucosa of the IT on the anterior and posterior portions of ITs. We also measured the air space of the nasal cavity between the septum and IT anteriorly and posteriorly. Results The difference in the air space between nasal septum, anterior and posterior ends of IT was extremely statistically significant (P < 0.0001). The thickness of the medial mucosa was extremely significantly more than the lateral mucosa width (P < 0.0001). There was no significant difference in length of IT at both sides ( p = 0.5781). Conclusion The detailed CT measurement of the IT in normal adult is an easy and novel measurement. This study lays the foundation for CT measurement of IT for further work that can describe changes in IT measures after turbinate surgery. PMID- 29018501 TI - Quality of Life in Pediatric Patients with Allergic Rhinitis treated at the Medical Clinic of Integrated Education - Unisul. AB - Introduction Allergic rhinitis is a common disease among children and adolescents, reaching up to 40% of the population. During childhood, it is usually underdiagnosed because it has nonspecific symptoms. It has a negative impact on quality of life and may predispose to comorbidities. The diagnosis is clinical and treatment aims prevention. Objective The objective of this study is to evaluate the quality of life in pediatric patients with allergic rhinitis. Methods This is an observational study with cross-sectional design. The population consisted of pediatric patients with allergic rhinitis treated at the Medical Clinic of Integrated Education (MCIE) - Universidade do Sul de Santa Catarina - Unisul, Tubarao, SC, Brazil. We collected data from March to June 2016 through the application of the Sociodemographic and Health Questionnaire, rhinitis module of the International Study of Asthma and Allergies in Childhood Questionnaire and the Rhinoconjunctivitis Quality of Life Questionnaire Modified. Results Out of the 69 respondents, 52.2% were boys with a mean age of 10.13 years old. The predominant education level of parents/guardians was incomplete second grade and average income level was two minimum wages. 81.2% said they had previous treatment for AR, 30.4% had asthma and 7.2% eczema. Incidence of patients smoking was absent and family (parents/guardians) smoking was 17.4%. March to July were the months of highest symptom occurrence, slightly disturbing daily activities. The mean value of severity was 51.9, nasal symptoms were the most uncomfortable, and nasal itchiness was the most cited. Conclusion Our results highlight that allergic symptoms negatively impact the life of people with allergic rhinitis, with a predominance of nasal symptoms, especially nasal itchy, representing a poor quality of life of the interviewed. PMID- 29018502 TI - Persistent Tracheostomy after Organ Preservation Protocol in Patients Treated for Larynx and Hypopharynx Cancer. AB - Introduction Squamous cell carcinoma of the larynx is currently the second most common malignancy of the airway after lung cancer, and hypopharyngeal cancer accounts for fewer than 5% of head and neck cancers. The nonsurgical options for patients with this disease are related to significant long-term toxicities and the need for persistent tracheostomy, which adversely affects the quality of life of these patients. Objective To evaluate the need for tracheostomy, and the influence of this in the overall and specific survival rates of patients diagnosed with all stages of laryngeal carcinoma treated by chemoradiotherapy. Methods A retrospective study of patients diagnosed with laryngeal carcinoma was performed according to the criteria of the Union for International Cancer Control (UICC) and the American Joint Committee on Cancer (AJCC) 7th edition, in a tertiary hospital. Results A total of 21 patients were evaluated, 8 patients required a tracheotomy (31%) during the treatment protocol, 7 (35%) men and 1 (100%) women. According to subsite 4/4 patient with glottis cancer (p <= 0.001), 2/10 patients with supra glottis cancer and 2/7 patients with hypopharyngeal cancer. During follow up, just in 1 patient was possible to close the tracheostomy. Conclusion Persistent tracheostomy dependence after primary chemoradiation increases significantly the morbidity, and decreases the quality of life of those patients. Patients with glottis cancer are prone to need a tracheostomy, but no statistical difference regarding the oncological stage and the need for a tracheostomy were detected. A more thorough selection of the patients is needed to improve the quality of life and reduce permanent tracheostomy dependence. PMID- 29018503 TI - Parameters Influencing Tracheostomy Decannulation in Patients Undergoing Rehabilitation after severe Acquired Brain Injury (sABI). AB - Introduction Tracheostomy weaning in patients who suffered a severe acquired brain injury is often a challenge and decannulation failures are not uncommon. Objective Our study objective is to describe the decannulation failure rate in patients undergoing rehabilitation following a severe acquired brain injury (sABI); to describe the factors associated with a successful tube weaning. Methods We conduct a retrospective analysis of charts, consecutively retrieved considering a 3-year window. Variables analyzed were: age, sex, body mass index (BMI), Glasgow Coma Scale (GCS), cause of hospitalization (stroke, trauma, cardiac arrest), date of the pathological event, gap between the index event and the first day of hospitalization, duration of Neurorehabilitation Ward hospitalization, comorbidities, chest morphological alteration, kind of tracheostomy tube used (overall dimension, cap, fenestration), SpO2, presentation and quantification of pulmonary secretion, maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP), respiratory frequency and pattern, cardiac frequency, presence of spontaneous cough, cough strength, and blood gas analysis. Results We analyzed 45 tracheostomised sABI patients following stroke, trauma, or cardiac arrest. The weaning success percentage was higher in Head Trauma patients and in patients presenting positive spontaneous cough. Failures seem to be associated with presence of secretions and anoxic brain damage. GCS seemed not related to the decannulation outcome. Conclusions Parameters that could be used as positive predictors of weaning are: mean expiratory pressure, presence of spontaneous cough, and cough strength. Provoked cough and GCS were not predictive of weaning success. PMID- 29018504 TI - HMGB1 in the Pathogenesis of Nasal Inflammatory Diseases and its Inhibition as New Therapeutic Approach: A Review from the Literature. AB - Introduction This study is a systematic review on recent developments about the importance of HMGB1 protein in the pathogenesis of rhino-sinusal inflammatory diseases. We also report data on the use of 18-beta-glycyrrhetic acid (GA), which has been shown able to inhibit the pro-inflammatory activities of HMGB1, in young patients affected by allergic rhinitis and complaining of nasal obstruction as main symptom. Objectives The objective of this study was to review the literature to demonstrate the importance of HMGB1 in the pathogenesis of nasal inflammatory disorders and understand whether the inhibition of this protein may be an efficacious and innovative therapeutic strategy for patients with rhino sinusal inflammation. Data Synthesis Authors searched for pertinent articles indexed in PubMed, Scopus, and other health journals between 2004 and 2015. In total, the authors gathered 258 articles: 219 articles through Pubmed and 39 articles from other search engines. The search terms used were as follows: HMGB1 AND "respiratory epithelium," "airway inflammation," "rhinitis," "allergic rhinitis," "rhinosinusitis," "nasal polyposis," "glycyrrhetic acid," "children." Conclusions Patients with severe symptoms have the highest serum levels and the highest extracellular expression of HMGB1. GA inhibits HMGB1 chemotactic and mitogenic function by a scavenger mechanism on extracellular HMGB1 accumulation stimulated by lipopolysaccharides in vitro. Treatment of allergic rhinitis with GA is not associated with local or systemic side effects in children and adults. PMID- 29018506 TI - Clinical Features and Surgical Treatment of Schwannoma Affecting the Base of the Tongue: A Systematic Review. AB - Introduction Schwannomas of the head and neck account for 25-40% of all cases, with presentation at the base of the tongue as the most frequent site for intraoral tumors. Objectives Here, a systematic review was conducted to include 15 cases of patients with schwannoma of the base of the tongue. Data Synthesis Most patients presented with a single, painless, well-encapsulated nodule at the base of the tongue. These nodules were slow-growing, with an average of 13.3 months from onset to presentation. Most cases were accompanied by airway obstruction, indicated by symptoms of dysphagia, dysarthria, snoring, and sleep apnea. Overall, the histological studies were consistent with a benign schwannoma with a palisading Antoni A and Antoni B pattern without malignant changes in cell morphology. These tumors were treated via complete surgical excision, and all cases achieved full remission by final follow-up. Conclusion Surgical removal is the primary mode of treatment with excellent postoperative prognosis and rare instances of recurrence. Given the rarity of this tumor, this review of available case studies serves to comprehensively describe clinical presentation and surgical treatment approaches to tongue base schwannoma. PMID- 29018505 TI - Head and Neck Lymphomas in HIV Patients: a Clinical Perspective. AB - Introduction Because of the many HIV-related malignancies, the diagnosis and treatment of lymphoma in patients infected with human immunodeficiency virus are challenging. Objective Here, we review current knowledge of the pathogenesis, epidemiology, symptomatology, diagnosis, and treatment of head and neck lymphomas in HIV patients from a clinical perspective. Data Synthesis Although Hodgkin's lymphoma is not an AIDS-defining neoplasm, its prevalence is ten times higher in HIV patients than in the general population. NHL is the second most common malignancy in HIV patients, after Kaposi's sarcoma. In this group of patients, NHL is characterized by rapid progression, frequent extranodal involvement, and a poor outcome. HIV-related salivary gland disease is a benign condition that shares some features with lymphomas and is considered in their differential diagnosis. Conclusion The otolaryngologist may be the first clinician to diagnose head and neck lymphomas. The increasing survival of HIV patients implies clinical and epidemiological changes in the behavior of this disease. Early diagnosis is important to improve the prognosis and avoid the propagation of HIV infection. PMID- 29018508 TI - Gait Improvements After Peroneal or Tibial Nerve Transfer in Patients with Foot Drop: A Retrospective Study. AB - Background: Injury to the common peroneal nerve disrupts the motor control pathway to ankle dorsiflexors and evertors, as well as toe extensors, resulting in pathological gait and foot drop. Direct external compression on the fibular head is the most frequent cause of peroneal nerve impairment and has poor prognosis. Methods and Patients: Here, we report the surgical outcome of 21 patients with foot drop (9 males and 12 females) who underwent nerve transfer procedure of either the superficial peroneal nerve or the tibial nerve fascicles to the motor branch of the tibialis anterior and to the deep peroneal nerve. They had at least 6 months postoperative follow-up (mean = 17; range, 6-32 months). Results: Among 21 patients who had no ankle dorsiflexion (BMRC 0/5) preoperatively, 9 patients had successful restoration of ankle dorsiflexion (BMRC 4 to 4+/5), 7 patients had BMRC 2 to 3+/5, and 4 patients had no or poor restoration of dorsiflexion (BMRC 0 to 1+/5) but achieved good ankle eversion (BMRC 3 to 4+/5). Overall statistically significant clinical improvement of ankle dorsiflexion and eversion from preoperative BMRC grade 2.6 +/- 0.5 to postoperative BMRC grade 3.6 +/- 0.7 (P = .0000004) was achieved. Conclusion: Overall statistically significant clinical improvement of ankle dorsiflexion and eversion was achieved in 80% of our study patients. Most of these patients gained antigravity and were able to walk with minimal steppage gait. In the other 4 patients (20%), there was good improvement in ankle eversion but poor or no ankle dorsiflexion. PMID- 29018507 TI - Down-regulation of MBD4 contributes to hypomethylation and overexpression of CD70 in CD4+ T cells in systemic lupus erythematosus. AB - BACKGROUND: Systemic lupus erythematosus (SLE) is an autoimmune disease that is characterized by lymphocytic infiltration and overproduction of autoantibodies, leading to significant morbidity and mortality. However, the pathogenesis of this disorder has not yet been completely elucidated. It has been reported that CD70, a B cell costimulatory molecule encoded by the gene TNFSF7 (tumor necrosis factor ligand superfamily member 7), is overexpressed in CD4+ T cells from patients with SLE due to the demethylation of its promoter. We aimed to investigate the expression patterns of MBD4 (methyl-CpG binding domain protein 4) in CD4+ T cells and its contribution to the pathogenesis of SLE by increasing CD70 expression through epigenetic regulation. RESULTS: Our results showed that the expression of MBD4 was significantly decreased in CD4+ T cells from SLE patients. We verified that transfection of MBD4 siRNA into healthy CD4+ T cells upregulated expression of CD70 and decreased the methylation level of the CD70 promoter. Overexpression of MBD4 inhibited CD70 expression and enhanced the DNA methylation level of CD70 in CD4+ T cells of SLE patients. CONCLUSION: Our results indicated that downregulation of MBD4 contributed to overexpression and hypomethylation of the CD70 gene in SLE CD4+ T cells. This modulation of MBD4 may provide a novel therapeutic approach for SLE. PMID- 29018510 TI - ROS and Oxidative Stress in Stem Cells. PMID- 29018509 TI - circRNA_0046367 Prevents Hepatoxicity of Lipid Peroxidation: An Inhibitory Role against Hepatic Steatosis. AB - Hepatic steatosis reflects the miRNA-related pathological disorder with triglyceride accumulation and lipid peroxidation, which leads to nonalcoholic steatohepatitis, liver fibrosis/cirrhosis, and even hepatocellular carcinoma. Circular RNA (circRNA)/miRNA interaction reveals a novel layer of epigenetic regulation, yet the miRNA-targeting circRNA remains uncertain in hepatic steatosis. Here, we uncover circRNA_0046367 to be endogenous modulator of miR-34a that underlies hepatic steatosis. In contrast to its expression loss during the hepatocellular steatosis in vivo and in vitro, circRNA_0046367 normalization abolished miR-34a's inhibitory effect on peroxisome proliferator-activated receptor alpha (PPARalpha) via blocking the miRNA/mRNA interaction with miRNA response elements (MREs). PPARalpha restoration led to the transcriptional activation of genes associated with lipid metabolism, including carnitine palmitoyltransferase 2 (CPT2) and acyl-CoA binding domain containing 3 (ACBD3), and then resulted in the steatosis resolution. Hepatotoxicity of steatosis related lipid peroxidation, being characterized by mitochondrial dysfunction, growth arrest, and apoptosis, is resultantly prevented after the circRNA_0046367 administration. These findings indicate a circRNA_0046367/miR-34a/PPARalpha regulatory system underlying hepatic steatosis. Normalized expression of circRNA_0046367 may ameliorate the lipoxidative stress on the basis of steatosis attenuation. circRNA_0046367, therefore, is suggested to be potential approach to the therapy of lipid peroxidative damage. PMID- 29018512 TI - Time for Practical Clinical Tools. PMID- 29018513 TI - Effective Patient Care in a Data-Driven World. PMID- 29018511 TI - Neurocognitive and observational markers: prediction of autism spectrum disorder from infancy to mid-childhood. AB - BACKGROUND: Prospective studies of infants at high familial risk for autism spectrum disorder (ASD) have identified a number of putative early markers that are associated with ASD outcome at 3 years of age. However, some diagnostic changes occur between toddlerhood and mid-childhood, which raises the question of whether infant markers remain associated with diagnosis into mid-childhood. METHODS: First, we tested whether infant neurocognitive markers (7-month neural response to eye gaze shifts and 14-month visual disengagement latencies) as well as an observational marker of emerging ASD behaviours (the Autism Observation Scale for Infants; AOSI) predicted ASD outcome in high-risk (HR) 7-year-olds with and without an ASD diagnosis (HR-ASD and HR-No ASD) and low risk (LR) controls. Second, we tested whether the neurocognitive markers offer predictive power over and above the AOSI. RESULTS: Both neurocognitive markers distinguished children with an ASD diagnosis at 7 years of age from those in the HR-No ASD and LR groups. Exploratory analysis suggested that neurocognitive markers may further differentiate stable versus lost/late diagnosis across the 3 to 7 year period, which will need to be tested in larger samples. At both 7 and 14 months, combining the neurocognitive marker with the AOSI offered a significantly improved model fit over the AOSI alone. CONCLUSIONS: Infant neurocognitive markers relate to ASD in mid-childhood, improving predictive power over and above an early observational marker. The findings have implications for understanding the neurodevelopmental mechanisms that lead from risk to disorder and for identification of potential targets of pre-emptive intervention. PMID- 29018515 TI - Letter from the New President of the European Heart Rhythm Association. PMID- 29018514 TI - A Future Perspective on the Europace Journal: its Star is Rising. PMID- 29018516 TI - Is There a Future for Remote Cardiac Implantable Electronic Device Management? AB - In the era of communication technology, remote monitoring has been a paradigm shift in the way patients with cardiac implantable electronic devices are managed. It has been endorsed by scientific societies and is being increasingly adopted in the clinical setting. Despite the various advantages associated with this strategy, data on improved clinical outcome are still sparse. The recently published study on the remote management of heart failure using implanted devices and formalised follow-up procedures, which turned out to be negative, has cast doubt on whether remote monitoring should still be used. This article provides a critical appraisal of the study, and discusses the issue of remote data management. PMID- 29018517 TI - Key Lessons from the ELECTRa Registry in the Modern Era of Transvenous Lead Extraction. AB - The implantation rate of cardiac electronic devices has grown over the past decades. The number of treated patients has increased in parallel with the complexity of the patient population treated, being older, frailer, having more complex devices (in particular, cardiac resynchronisation therapy) and presenting with a greater comorbidity burden. As a consequence, there is a rising number of related implanted system complications, including malfunction and infection. Thus, the demand for transvenous lead extraction (TLE) has also substantially increased. To identify the indication to TLE by various operators and centres, techniques used to perform TLE, and the safety and efficacy of the current clinical practice of TLE, a large prospective registry has been started in Europe - the European Lead Extraction Controlled (ELECTRa) Registry. The key findings of the ELECTRa Registry are discussed in the present review and placed in the context of previous knowledge. The ELECTRa Registry confirms that the TLE procedure is a safe and effective treatment, with an acceptable risk-benefit ratio that is comparable with other well-known cardiological invasive procedures. Of course, TLE is accompanied by potential life-threatening complications; the vast majority of these can be managed by an experienced multidisciplinary team. Multiple factors predict complications, including patient/lead profile, centre experience and procedure volumes, which may suggest caution when accepting a patient for TLE. PMID- 29018518 TI - Cardiac Effects of Lightning Strikes. AB - Lightning strikes are a common and leading cause of morbidity and mortality. Multiple organ systems can be involved, though the effects of the electrical current on the cardiovascular system are one of the main modes leading to cardiorespiratory arrest in these patients. Cardiac effects of lightning strikes can be transient or persistent, and include benign or life-threatening arrhythmias, inappropriate therapies from cardiac implantable electronic devices, cardiac ischaemia, myocardial contusion, pericardial disease, aortic injury, as well as cardiomyopathy with associated ventricular failure. Prolonged resuscitation can lead to favourable outcomes especially in young and previously healthy victims. PMID- 29018521 TI - End-of-life Management of Leadless Cardiac Pacemaker Therapy. AB - The clinically available leadless pacemakers for patients with a single-chamber pacing indication have shown to be safe and effective. However, the optimal end of-life strategy of this novel technique is undefined. Suggested strategies comprise of (a) placing an additional leadless device adjacent to the leadless pacemaker, or (b) retrieving the non-functioning leadless pacemaker and subsequently implanting a new device. Although initial studies demonstrate promising results, early experience of acute and mid-term retrieval feasibility and safety remains mixed. We suggest that the approach of leadless pacemaker retrieval is more appealing to limit the amount of non-functioning intracardiac hardware. In addition, potential risks for device-device interference, and unknown long-term complications associated with multiple intracardiac devices are prevented. The potential inability to retrieve chronically implanted leadless pacemakers limits the application of this novel technology. Therefore, long-term prospective analysis is required to define the most optimal end-of-life strategy. PMID- 29018520 TI - Prophylactic Catheter Ablation for Ventricular Tachycardia: Are We There Yet? AB - Ventricular tachycardia (VT), often degenerating into ventricular fibrillation, is the leading cause of sudden cardiac death. Catheter ablation of VT is associated with relatively low, long-term success rates, while the optimal timing of ablation in patients with ischaemic and non-ischaemic cardiomyopathy remains unclear. Contemporary practice in most centres is to consider ablation late in the disease process following the failure of anti-arrhythmic medications and/or following recurrent implantable cardioverter-defibrillator shocks. Three major randomised, controlled trials have been published investigating the role of prophylactic catheter ablation for VT. In the present review, we assess the evidence from these and other related trials in VT ablation to understand if there is sufficient evidence to advocate prophylactic catheter ablation in patients with VT. PMID- 29018522 TI - Ventricular Arrhythmia after Acute Myocardial Infarction: 'The Perfect Storm'. AB - Ventricular tachyarrhythmias (VAs) commonly occur early in ischaemia, and remain a common cause of sudden death in acute MI. The thrombolysis and primary percutaneous coronary intervention era has resulted in the modification of the natural history of an infarct and subsequent VA. Presence of VA could independently influence mortality in patients recovering from MI. Appropriate risk assessment and subsequent treatment is warranted in these patients. The prevention and treatment of haemodynamically significant VA in the post-infarct period and of sudden cardiac death remote from the event remain areas of ongoing study. PMID- 29018523 TI - Comparative study of two protocols for quantitative image-analysis of serotonin transporter clustering in lymphocytes, a putative biomarker of therapeutic efficacy in major depression. AB - BACKGROUND: The pattern of serotonin transporter clustering on the plasma membrane of lymphocytes extracted from human whole blood samples has been identified as a putative biomarker of therapeutic efficacy in major depression. Here we evaluated the possibility of performing a similar analysis using blood smears obtained from rats, and from control human subjects and depression patients. We hypothesized that we could optimize a protocol to make the analysis of serotonin protein clustering in blood smears comparable to the analysis of serotonin protein clustering using isolated lymphocytes. RESULTS: Our data indicate that blood smears require a longer fixation time and longer times of incubation with primary and secondary antibodies. In addition, one needs to optimize the image analysis settings for the analysis of smears. When these steps are followed, the quantitative analysis of both the number and size of serotonin transporter clusters on the plasma membrane of lymphocytes is similar using both blood smears and isolated lymphocytes. CONCLUSIONS: The development of this novel protocol will greatly facilitate the collection of appropriate samples by eliminating the necessity and cost of specialized personnel for drawing blood samples, and by being a less invasive procedure. Therefore, this protocol will help us advance the validation of membrane protein clustering in lymphocytes as a biomarker of therapeutic efficacy in major depression, and bring it closer to its clinical application. PMID- 29018519 TI - Limitations and Challenges in Mapping Ventricular Tachycardia: New Technologies and Future Directions. AB - Recurrent episodes of ventricular tachycardia in patients with structural heart disease are associated with increased mortality and morbidity, despite the life saving benefits of implantable cardiac defibrillators. Reducing implantable cardiac defibrillator therapies is important, as recurrent shocks can cause increased myocardial damage and stunning, despite the conversion of ventricular tachycardia/ventricular fibrillation. Catheter ablation has emerged as a potential therapeutic option either for primary or secondary prevention of these arrhythmias, particularly in post-myocardial infarction cases where the substrate is well defined. However, the outcomes of catheter ablation of ventricular tachycardia in structural heart disease remain unsatisfactory in comparison with other electrophysiological procedures. The disappointing efficacy of ventricular tachycardia ablation in structural heart disease is multifactorial. In this review, we discuss the issues surrounding this and examine the limitations of current mapping approaches, as well as newer technologies that might help address them. PMID- 29018524 TI - Re-evaluation of soluble APP-alpha and APP-beta in cerebrospinal fluid as potential biomarkers for early diagnosis of dementia disorders. AB - BACKGROUND: Because soluble (or secreted) amyloid precursor protein-beta (sAPPbeta) and -alpha (sAPPalpha) possibly reflect pathological features of Alzheimer's disease (AD), they are potential biomarker candidates for dementia disorders, including AD and mild cognitive impairment (MCI) due to AD (MCI-AD). However, controversial results have been reported regarding their alterations in the cerebrospinal fluid (CSF) of AD and MCI-AD patients. In this study, we re assessed the utility of sAPPalpha and sAPPbeta in CSF as diagnostic biomarkers of dementia disorders. METHODS: We used a modified and sensitive detection method to analyze sAPPs levels in CSF in four groups of patients: AD (N = 33), MCI-AD (N = 17), non-AD dementia (N = 27), and disease controls (N = 19). Phosphorylated tau (p-tau), total tau, and Abeta42 were also analyzed using standard methods. RESULTS: A strong correlation was observed between sAPPalpha and sAPPbeta, consistent with previous reports. Both sAPPalpha and sAPPbeta were highly correlated with p-tau and total tau, suggesting that sAPPs possibly reflect neuropathological changes in the brain. Levels of sAPPalpha were significantly higher in MCI-AD cases compared with non-AD and disease control cases, and those of sAPPbeta were also significantly higher in MCI-AD and AD cases relative to other cases. A logistic regression analysis indicated that sAPPalpha and sAPPbeta have good discriminative power for the diagnosis of MCI-AD. CONCLUSIONS: Our findings collectively suggest that both sAPPs are pathologically relevant and potentially useful biomarkers for early and accurate diagnosis of dementia disorders. We also suggest that careful measurement is important in assessing the diagnostic utility of CSF sAPPs. PMID- 29018525 TI - Concordance of opinions between patients and physicians and their relationship with symptomatic control and future risk in patients with moderate-severe asthma. AB - INTRODUCTION: Differences between the opinions of patients and physicians on the impact of asthma are common. We hypothesised that patient-physician discordance may negatively affect asthma outcome. METHODS: A total of 2902 patients (61% women, mean age 47 years) with moderate-severe asthma and 231 physicians participated in a prospective study. At the baseline visit, data on demographics, clinical variables, degree of asthma control according to the Asthma Control Test (ACT), basic spirometry and the Hospital Anxiety and Depression Scale (HADS) were collected and an ad hoc questionnaire was completed that allowed the degree of concordance between doctors and patients to be assessed. A scheduled telephone call after 3 months was used to elicit the ACT score and the future risk of asthma. At the final visit at 6 months, the following data were recorded: ACT score, spirometry, HADS score and an ad hoc questionnaire to assess the agreement between the doctor and the patient. Changes in study variables according to patient-physician concordance or discordance were analysed. RESULTS: The rate of patient-physician discordance was 27.2%, with overestimation of disease impact by the physician in 12.3% and underestimation in 14.9%. Patient-physician opinion discordance, particularly in the case of physicians underestimating the impact of asthma, showed worse results with statistically significant differences in ACT score, a higher percentage of patients with poor asthma control and lower HADS scores. The need for hospital and emergency department admissions was also higher. CONCLUSION: Patient-physician opinion discordance may be contributing to lower symptomatic control and increased future risk, with a higher impact when physicians underestimate the impact of asthma on their patients. PMID- 29018528 TI - Correction: Evaluation of the current landscape of respiratory nurse specialists in the UK: planning for the future needs of patients. AB - [This corrects the article DOI: 10.1136/bmjresp-2017-000210.][This corrects the article DOI: 10.1136/bmjresp-2017-000210.]. PMID- 29018527 TI - British Thoracic Society quality standards for home oxygen use in adults. AB - INTRODUCTION: The purpose of the quality standards document is to provide healthcare professionals, commissioners, service providers and patients with a guide to standards of care that should be met for home oxygen provision in the UK, together with measurable markers of good practice. Quality statements are based on the British Thoracic Society (BTS) Guideline for Home Oxygen Use in Adults. METHODS: Development of BTS Quality Standards follows the BTS process of quality standard production based on the National Institute for Health and Care Excellence process manual for the development of quality standards. RESULTS: 10 quality statements have been developed, each describing a key marker of high quality, cost-effective care for home oxygen use, and each statement is supported by quality measures that aim to improve the structure, process and outcomes of healthcare. DISCUSSION: BTS Quality Standards for home oxygen use in adults form a key part of the range of supporting materials that the society produces to assist in the dissemination and implementation of a guideline's recommendations. PMID- 29018526 TI - Design of the PF-ILD trial: a double-blind, randomised, placebo-controlled phase III trial of nintedanib in patients with progressive fibrosing interstitial lung disease. AB - : 600 patients aged >=18 years will be randomised in a 1:1 ratio to nintedanib or placebo. Patients with diagnosis of IPF will be excluded. The study population will be enriched with two-thirds having a usual interstitial pneumonia-like pattern on HRCT. The primary endpoint is the annual rate of decline in forced vital capacity over 52 weeks. The main secondary endpoints are the absolute change from baseline in King's Brief Interstitial Lung Disease Questionnaire total score, time to first acute interstitial lung disease exacerbation or death and time to all-cause mortality over 52 weeks. ETHICS AND DISSEMINATION: The trial is conducted in accordance with the Declaration of Helsinki, the International Conference on Harmonisation Tripartite Guideline for Good Clinical Practice (GCP) and Japanese GCP regulations. TRIAL REGISTRATION NUMBER: NCT02999178. PMID- 29018529 TI - Corrections: Glucose-lowering effect of whey protein depends upon clinical characteristics of patients with type 2 diabetes. AB - [This corrects the article DOI: 10.1136/bmjdrc-2017-000420.][This corrects the article DOI: 10.1136/bmjdrc-2017-000420.]. PMID- 29018530 TI - Benchmarking welfare indicators in 73 free-stall dairy farms in north-western Spain. AB - The aim of this study was to describe the status of body condition score (BCS), hock injuries prevalence, locomotion and body hygiene score as animal welfare measures in 73 free-stall dairy cattle farms in Lugo (Spain). A benchmarking process was established across farms: (1) the animal-based indicators were ordered from low to high values; (2) The farms were classified into three categories based on the number of indicators within less than the 25th percentile, 25th to 75th percentile and above the 75th percentile. The median prevalence of unsuitable BCS, hock injuries and clinical lameness was (median (range)) 51.7 per cent (13.3 to 89.5 per cent), 40.0 per cent (7.0per cent to 100 per cent) and 9.0 per cent (0per cent to 60.0 per cent) respectively. The dirtiness of the cow's coat had a high prevalence (73.0 per cent (37.5per cent to 100 per cent)). Most farms did not display consistently good or poor animal-based indicators and each farm had its own set of strong and weak points. Moreover, facilities design and management practices were described to understand source of the observations made of the cows. The incidence of overstocking was 31.5 per cent for stalls and 26.0 per cent for headlocks. The front lunge space was reduced (<90 cm) on most dairies (90.4 per cent). Signs of poor natural ventilation (cobwebs or humidity on the roof) and ammonia odour were observed on 32.8 per cent and 85.0 per cent of the barns totally closed or with a side openingless than 50 per cent of the wall height. The milking parlour was designed with two or more turns more than 90 degrees (9.3 per cent), and failed to allow cows to see the parlour before entering (45.2 per cent). On 52.0 per cent of dairies, more than 15 per cent of the cows had to be forcefully moved into the milking parlour. In conclusion, there was a big variation in the animal welfare levels within and across farms and they could benefit from others by changing management practices related to facilities and herds. PMID- 29018532 TI - Real world data of a veterinary teaching hospital in Japan: a pilot survey of prescribed medicines. AB - The prescription data from a digital accounting system of a veterinary teaching hospital collected between 2008 and 2011 in Japan were downloaded, stored in a database and analysed using a statistical analysis software, SAS. Seventy-six per cent of all prescriptions were drugs approved for human beings. The most frequently prescribed category was 'Agents against pathogenic organisms', such as antibiotics and chemotherapeutic agents, followed by 'Cardiovascular agents'. Seventy-five per cent of prescribed oral formulations in the category 'Agents against pathogenic organisms' were drugs approved for human beings, while 78 per cent of the injectable prescriptions were those for veterinary. A total of 36 oral antipathogenic products were prescribed, and among them amoxicillin was prescribed the most, followed by cephalexin for human beings and enrofloxacin for veterinary. The pattern of cyclosporin prescription, which is the most prescribed product other than 'Agents against pathogenic organisms', was surveyed. The capsule formulation was primarily used for dogs, while oral solutions were preferably used for cats. This pilot study is the first analytical data of real prescription in hospitals in Japan and one of the longest surveys in veterinary world. PMID- 29018531 TI - Magnetic resonance imaging to detect local tissue reactions after vaccination in sheep in vivo. AB - OBJECTIVES: Vaccination is one of the most effective methods to keep up the health status in humans and in livestock. Therefore, farm animals are vaccinated several times during their lifetime. Although vaccines are being checked regarding their local reactogenicity, side effects occur frequently-especially in the case of the application of adjuvanted products. Many reports exist about local reactions in sheep. The present study aimed at testing MRI as a method to document injection site reactions three-dimensionally. DESIGN: Two groups of Merino lambs (n=16 each) were vaccinated subcutaneously into the left neck side. Two different, licensed inactivated vaccines were used. Both groups of lambs were anaesthetised and scanned using MRI at days 1, 3, 8, 15, 22 and 29 after vaccination. SETTING: The study was performed on a commercial-like farm. PARTICIPANTS: Thirty-two Merino lambs entered the experiment, 16 male and 16 female ones (one animal died at day 22 after vaccination). At first examination day they were approximately three months old. PRIMARY AND SECONDARY OUTCOME MEASURES: Volume differences were measured between vaccination and control neck side to evaluate the time pattern of local tissue reactions. RESULTS: Local tissue reactions were visible on the skin surface and also appeared in deeper tissue layers on MRI. These deeper reactions would not have been found without MRI or, alternatively, without sacrificing the animals. Some of these extensive local reactions lasted for more than 29 days. CONCLUSIONS: The in vivo MRI results proved suitable to record local tissue reactions in terms of three dimensional extent over a longer period of time in large farm animals without the need to sacrifice test animals. A three-dimensional MRI examination of the injection site during regulatory licensing studies offers an objective evaluation that could be used in a benefit-risk assessment of veterinary vaccines. TRIAL REGISTRATION NUMBER: District Government of Upper Bavaria:55.2-1-54-2532-2-13. PMID- 29018534 TI - Factors related to work and life satisfaction of veterinary practitioners in Germany. AB - OBJECTIVES: Veterinary practitioners' working situation is both challenging and changing. They have higher levels of work-related stress and suicide risk than the general population. The proportion of women is increasing, and in Germany especially women and employed veterinarians are reported to be less satisfied than comparable subgroups of the general population. In this study we identified key factors associated with work and life satisfaction among veterinary practitioners in Germany. DESIGN: Questionnaire-based cross-sectional survey. SETTING: All veterinary practitioners registered in Germany in 2016. PARTICIPANTS: There were 2549 respondents, of whom 1930 met the inclusion criteria for further analysis. They had a median age of 37 and the majority of respondents were women (79.3 per cent). Almost two-thirds (63.8 per cent) worked as employed veterinarian. PRIMARY OUTCOMES: Importance of different job characteristics measured in 5-point Likert items, work satisfaction measured on a 5-point Likert item and life satisfaction measured in 11-point Likert items. SECONDARY OUTCOMES: Facets such as satisfaction with leisure time, family life, health and standard of living, information on working conditions such as working time, income, as well as year of birth and other demographic data. RESULTS: A 'good working atmosphere' was the most relevant job characteristic for all veterinary practitioners. Work satisfaction of employed practitioners is closely linked to satisfaction with their colleagues. This link is less pronounced for self-employed practitioners. A 'reasonable salary' was the second and 'holidays and leisure time' was the third most important job characteristics for employed practitioners. A 'good working atmosphere' and 'family friendly arrangements' were statistically significantly more important for women than for men, while a 'reasonable salary' was more important for men. CONCLUSIONS: Our results indicate strong associations between levels of work satisfaction and various work-related factors in subgroups of veterinary practitioners in Germany that reduce life satisfaction. The strength of some associations differs between men and women, as well as between self-employed and employed veterinarians. Outgoing students should be better prepared for the challenging working conditions that they face in veterinary practice. Salary levels should be improved and the working conditions adapted to the respective subgroups in order to increase work and life satisfaction. PMID- 29018533 TI - Pharmacokinetics of marbofloxacin administered via intravenous regional limb perfusion in dairy cows: evaluation of two different tourniquets. AB - OBJECTIVES: This study evaluated synovial and systemic plasma pharmacokinetic variables of marbofloxacin after a single intravenous regional limb perfusion (IVRLP) performed using two different tourniquets in clinically healthy, standing, non-sedated dairy cows. The authors hypothesised that the type of tourniquet used for IVRLP would influence the synovial fluid concentration of marbofloxacin in the perfused distal limb. DESIGN: The study had a randomised parallel-group design. METHODS: Ten adult dairy cows were included. Unilateral hindlimb IVRLP through the dorsal common digital III vein was performed in two groups of five cows (group 1: wide rubber tourniquet; group 2: manual pneumatic tourniquet) using 0.67 mg/kg of marbofloxacin. The tourniquet was applied proximal to the tarsus and maintained for 30 minutes. Samples of jugular blood and synovial fluid from the tibiotarsal joints of the perfused limb were obtained before and at intervals after IVRLP. All samples were analysed for drug concentrations using liquid chromatography tandem mass spectrometry. Pharmacokinetic parameters were determined to establish the influence of tourniquet types. Differences were considered significant at P<=0.05. RESULTS: No adverse effects from the procedure or marbofloxacin were observed in any animal. Significant differences in synovial concentrations and pharmacokinetic parameters were measured. The mean +/- sd areas under the concentration versus time curve from time 0 to 24 hours were 178.98+/-58.08 ug hour/ml for group 2 and 21.11+/ 9.93 ug hour/ml for group 1. The mean +/- sd maximum marbofloxacin concentrations were 75.50+/-10.19 ug/ml for group 2 and 6.35+/-1.47 ug/ml for group 1. CONCLUSIONS: Performing IVRLP using the dorsal common digital III vein and a manual pneumatic tourniquet set at 300 mmHg above the tarsus in standing cows resulted in significantly higher marbofloxacin concentrations in the tibiotarsal joint compared with those with the wide rubber tourniquet. TRIAL REGISTRATION: Local ethical committee (number 41/2012/CEISA). PMID- 29018536 TI - Efficacy and safety of non-vitamin K antagonist oral anticoagulants compared with warfarin in patients with atrial fibrillation. AB - AIMS: Non-vitamin K antagonist oral anticoagulants (NOACs) were in pivotal randomised controlled trials at least non-inferior to warfarin for stroke prevention in atrial fibrillation, but time in therapeutic range (TTR) for warfarin was lower (mean 55%-65%) than in Swedish general care where TTR is >70%. We compared efficacy and safety of NOACs and warfarin treatment for stroke prevention in Sweden. METHODS: Retrospective cohort study of all non-selected oral anticoagulation naive atrial fibrillation patients with first prescription for NOACs or warfarin between December 2011 and December 2014, excluding patients with mitral stenosis or mechanical valvular prosthesis. Data were obtained from cross-linked national registers, propensity scores were used as continuous covariates, and associations between treatment and outcomes were evaluated by multivariable Cox regressions. RESULTS: The study comprised 18 638 patients on NOAC and 49 418 on warfarin treatment, with 90 204 patient-years follow-up. Age (mean) was 73.4 vs 73.7 years, p<0.001, and CHA2DS2-VASc points (mean) 3.38 vs 3.24, p<0.001, in NOAC and warfarin groups, respectively. HRs (95% CI) for NOACs versus warfarin were 1.04 (0.91-1.19) for all-cause stroke or systemic embolism, 1.16 (1.00-1.35) for ischaemic stroke, 0.85 (0.76-0.96) for major bleeding, 1.22 (1.01-1.46) for gastrointestinal bleeding, 0.60 (0.47-0.76) for intracranial haemorrhage and 0.89 (0.81-0.96) for all-cause mortality. CONCLUSION: In this large non-selected anticoagulation naive Swedish atrial fibrillation cohort, the risks for all-cause stroke or systemic embolism were similar with NOACs and warfarin, but NOACs were associated with significantly lower risks of all-cause mortality, major bleeding and intracranial haemorrhage but higher risk of gastrointestinal bleeding. Better safety suggests NOACs as preferred treatment for patients with atrial fibrillation starting oral anticoagulation. PMID- 29018535 TI - Left ventricular longitudinal systolic function analysed by 2D speckle-tracking echocardiography in heart failure with preserved ejection fraction: a meta analysis. AB - BACKGROUND: The purpose of this meta-analysis was to confirm if the global longitudinal systolic function of the left ventricle (LV) is altered in patients with heart failure with preserved ejection fraction (HFpEF). METHODS: We searched in different databases (Medline, Embase and Cochrane) studies that analysed LV global longitudinal systolic strain (GLS) in patients with HFpEF and in controls (such as healthy subjects or asymptomatic patients with arterial hypertension, diabetes mellitus or coronary artery disease). RESULTS: Twenty-two studies (2284 patients with HFpEF and 2302 controls) were included in the final analysis. Patients with HFpEF had significantly lower GLS than healthy subjects (mean 15.7% (range -12% to -18.9%) vs mean -19.9% (range -17.1% to -21.5%), weighted mean difference -4.2% (95% CI -3.3% to -5.0%), p < 0.001, respectively). In addition, patients with HFpEF had also significantly lower GLS than asymptomatic patients (mean -15.5% (range -13.4% to -18.4%) vs mean -18.3% (range -15.1% to 20.4%), weighted mean difference -2.8%(95% CI -1.9% to -3.6%), p < 0.001, respectively). In line, 10 studies showed that the rate of abnormal GLS was significantly higher in patients with HFpEF (mean 65.4% (range 37%-95%)) than in asymptomatic subjects (mean 13% (range 0%-29.6%)). Regarding the prognostic relevance of abnormal GLS in HFpEF, two multicentre studies with large sample size (447 and 348) and high number of events (115 and 177) showed that patients with abnormal GLS had worse cardiovascular (CV) outcomes than those with normal GLS (HR for CV mortality and HF hospitalisation 2.14 (95% CI 1.26 to 3.66) and 1.94 (95% CI 1.22 to 3.07)), even adjusting these analyses for multiples clinical and echocardiographic variables. CONCLUSION: The present meta-analysis analysing 2284 patients with HFpEF and 2302 controls confirms that the longitudinal systolic function of the LV is significantly altered in high proportion of patients with HFpEF. Further large multicentre studies with the aim to confirm the prognostic role of abnormal GLS in HFpEF are warranted. PMID- 29018537 TI - Safety, pharmacokinetics and pharmacodynamics of AMG 811, an anti-interferon gamma monoclonal antibody, in SLE subjects without or with lupus nephritis. AB - OBJECTIVE: To evaluate safety, pharmacokinetics and pharmacodynamics of anti interferon (IFN)-gamma monoclonal antibody AMG 811 in subjects with SLE without or with lupus nephritis (LN). METHODS: In this phase Ib, randomised, multiple dose escalation study (NCT00818948), subjects without LN were randomised to subcutaneous AMG 811 (6, 20 or 60 mg) or placebo and subjects with LN were randomised to subcutaneous AMG 811 (20, 60 or 120 mg) or placebo every four weeks for three total doses. Outcomes included incidence of adverse events (AEs); pharmacokinetics; levels of serum proteins (CXCL-10, interleukin 18, monocyte chemotactic protein-1); changes in gene transcript profiles and clinical parameters (Safety of Estrogen in Lupus Erythematosus National Assessment Systemic Lupus Erythematosus Disease Activity Index (SELENA-SLEDAI) scores, proteinuria, anti-double-stranded DNA (anti-dsDNA) antibodies, C3 complement, C4 complement). RESULTS: Fifty-six subjects enrolled (28 SLE without LN; 28 with LN). Baseline mean SELENA-SLEDAI scores were 2.2 and 12.0 for SLE subjects without and with LN, respectively. Most subjects reported an AE; no meaningful imbalances were observed between AMG 811 and placebo. Pharmacokinetic profiles were similar and mostly dose-proportional in subjects without or with LN. AMG 811 treatment reduced CXCL-10 protein levels and blood-based RNA IFN-gamma Blockade Signature compared with placebo. Reductions were less pronounced and not sustained in subjects with LN, even at the highest dose tested, compared with subjects without LN. No effect on SELENA-SLEDAI scores, proteinuria, C3 or C4 complement levels, or anti-dsDNA antibodies was observed. CONCLUSION: AMG 811 demonstrated favourable pharmacokinetics and acceptable safety profile but no evidence of clinical impact. IFN-gamma-associated biomarkers decreased with AMG 811; effects were less pronounced and not sustained in LN subjects. TRIAL REGISTRATION NUMBER: NCT00818948; results. PMID- 29018538 TI - Replacement of warfarin with a novel oral anticoagulant in endoscopic mucosal resection: a multicentre, open-label, randomised controlled trial. AB - INTRODUCTION: This randomised controlled trial aims to compare the efficacy of warfarin replacement with apixaban without postoperative resumption of heparin with that of conventional heparin bridging in patients taking warfarin and scheduled to undergo endoscopic mucosal resection (EMR): specifically, by checking for reduction in proportion of postoperative bleeding following EMR. METHODS AND ANALYSIS: The multicentre, open-label randomised parallel-group, controlled intervention study regards patients taking warfarin who are scheduled to undergo colon EMR. Enrolled patients have been taking oral warfarin for non valvular atrial fibrillation or venous thrombosis on an outpatient basis, and have been found to have a colorectal polyp (including adenoma or early-stage cancer) for which EMR was indicated. They are assigned to one of two groups. The primary endpoint is proportion of postoperative bleeding. The secondary endpoints are hospital stay length, therapeutic endoscopy outcomes such as proportion of en bloc resection, proportion of perforation, proportion of intraoperative bleeding, incidence of cerebral infarction/systemic embolism events, incidence of adverse events and serious adverse events, and proportion of postoperative therapeutic endoscopy. ETHICS AND DISSEMINATION: This trial was approved by the National Hospital Organization Central Review Board for Clinical Trials (19 April 2016). DISCUSSION: The paucity of reports with high evidence levels was considered problematic when the Japan Gastroenterological Endoscopy Society's gastroenterological endoscopy guidelines were revised in 2012. The results of this trial will have high medical significance, as its data could serve as the basis for revisions in the next edition of the guidelines. TRIAL REGISTRATION NUMBER: This trial was registered in the University Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR) accepted from the International Committee of Medical Journal Editors (ICMJE). UMIN000021947; Pre-results. PMID- 29018539 TI - Clinical characteristics of antimitochondrial antibody-positive patients at a safety net health care system in Arizona. AB - BACKGROUND AND AIMS: To assess whether aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (AP) levels can predict the diagnosis of primary biliary cholangitis (PBC) or any other diagnoses and whether PBC occurs either simultaneously or independently of other liver diseases among antimitochondrial antibody (AMA)-positive patients. METHODS: Demographic and clinical variables were assessed in 90 AMA-positive patients with and without liver biopsies. These patients were further categorised as having a diagnosis of PBC, overlap syndrome or 'not established with a diagnosis of PBC'. Receiver operating characteristic curves were constructed to determine the thresholds of liver enzymes that predict these three diagnoses. RESULTS: The 48 patients with liver biopsies were more frequently female and had significantly higher AP levels compared with the non-liver biopsy group. Based on liver biopsy findings, 12, 12 and 22 patients were assigned a diagnosis of PBC, overlap syndrome with autoimmune hepatitis and PBC and 'not established diagnosis of PBC', respectively. Seven of 12 patients classified as PBC had AP level of ?200 IU. AST, ALT and AP levels were significant predictors of a diagnosis of overlap syndrome compared with the rest of the patients; however, these tests were not discriminatory between diagnoses of PBC and 'not established with PBC'. Findings of fatty liver and bile duct injury on liver biopsies were not significantly associated with any liver test pattern. CONCLUSIONS: As the liver test pattern did not correlate with the liver biopsy findings of PBC or other non-PBC diagnoses in AMA-positive patients at risk for other disease, a liver biopsy and/or non-invasive liver assessment along with serum liver tests should be interpreted to complete liver evaluation. PMID- 29018540 TI - Efficacy of individualised diets in patients with irritable bowel syndrome: a randomised controlled trial. AB - BACKGROUND: Patients with irritable bowel syndrome (IBS) are often placed on diets guided by food intolerance assays, although these have not been validated. We assessed the effects of individualised diets in patients with IBS guided by a leucocyte activation test. METHODS: This is a parallel-group, double-blind, randomised controlled trial of 58 adults with IBS seen at an academic health centre in Northeast USA. Peripheral venous blood was analysed using a leucocyte activation test; individual foods were reported to produce positive or negative results. Participants were randomised to a 4-week diet with either individualised guidance to eliminate foods with positive assay results and allow foods with negative assay results (intervention), or with individualised guidance, matched in rigour and complexity, to eliminate foods with negative assay results and allow foods with positive assay results (comparison). The primary outcome was between-group differences in the IBS Global Improvement Scale (GIS). Secondary outcomes included reductions in IBS Symptom Severity Scale (SSS) scores and increases in IBS Adequate Relief (AR) and Quality of Life (QOL) scores. An aptamer-based proteomic analysis was conducted in strong responders. RESULTS: The intervention group had significantly greater increases in mean GIS score after 4 weeks (0.86 vs comparison; 95% CI 0.05 to 1.67; p=0.04) and 8 weeks (1.22 vs comparison; 95% CI 0.22 to 2.22; p=0.02). The intervention group also had significantly greater reductions in mean SSS score at 4 weeks (-61.78 vs comparison; 95% CI -4.43 to -119.14; p=0.04) and 8 weeks (-66.42 vs comparison; 95% CI -5.75 to -127.09; p=0.03). There were no significant differences between intervention and comparison groups in mean AR or QOL scores. A reduction in neutrophil elastase concentration was associated with reduced symptoms. CONCLUSIONS: Elimination diets guided by leucocyte activation tests reduced symptoms. These findings could lead to insights into the pathophysiology of IBS. TRIAL REGISTRATION NUMBER: NCT02186743. PMID- 29018541 TI - Results from a retrospective analysis of colonoscopies for Inflammatory bowel disease and colorectal cancer in a Lebanese tertiary care centre. AB - BACKGROUND AND AIMS: Inflammatory bowel diseases (IBDs) and colorectal cancer have an increased impact on the Lebanese population's morbidity and mortality. This study evaluated the situation of IBD and colorectal cancer at a tertiary hospital centre in Lebanon. METHODS: 1007 patients underwent colonoscopy over a period of 12 months by qualified physicians. 91 patients were excluded from the study. Biopsy results were divided into normal versus abnormal colonic tissue. The abnormal section was further subdivided into number of polyps, IBD, dysplasia and cancer. RESULTS: Out of 916 individuals included, 61 cases of Crohn's colitis (CC) (6.7%) and 24 cases of ulcerative colitis (UC) (2.7%) were identified. A total of 92 cases of colorectal cancer (10.04%) were also identified. There was a slight male predominance in both groups of IBD without any statistical significance. One statistical significance was reported in favour to age<50 years in both IBD groups with a mean age of 37.9+/-9.7 years and 34.4+/-6.4 years for CC and UC, respectively. The incidence of granuloma in the CC group was 8.9% without any correlation compared with age or gender. No correlation was made between colorectal cancer and the existence of any IBD type. The data showed that age >50 years and male gender significantly correlate with an increased incidence of precancerous and cancerous polyps in the colon. They significantly correlate with adenocarcinoma. The estimated incidence of colorectal cancer, CC and UC was 54.1, 35.8 and 14.1 per 100 000, respectively, with a denominator of 169 959 patients per year. CONCLUSION: Within the limitations of this study, the incidence of colorectal cancer and IBD falls in the high range compared with similar European and American studies. Our data are biased because of the tertiary centre setting but they can be considered as base for further investigations. PMID- 29018542 TI - Spatiotemporal characteristics of motor actions by blind long jump athletes. AB - BACKGROUND: Blind people depend on spatial and temporal representations to perform activities of daily living and compete in sport. OBJECTIVE: The aim of this study is to determine the spatiotemporal characteristics of long jumps performed by blind athletes and compare findings with those reported for sighted athletes. METHODS: We analysed a sample of 12 male athletes competing in the F11 Long Jump Finals at the Paralympic Games in London 2012. Performances were recorded using four high-speed cameras, and speeds were measured using a radar speed gun. The images were processed using validated image analysis software. RESULTS: The long jump run-up is shorter in blind athletes than in sighted athletes. We observed statistically significant differences for body centre of mass velocity and an increase in speed over the last three strides prior to take off, contrasting with reports for sighted athletes and athletes with less severe visual impairment, who maintain or reduce their speed during the last stride. Stride length for the last three strides was the only spatial characteristic that was not significantly associated with effective jump distance. Blind long jumpers extend rather than shorten their last stride. Contact time with the take-off board is longer than that reported for sighted athletes. CONCLUSION: The actions of blind long jumpers, unlike those without disabilities, do not vary their leg actions during the final runway approach for optimal placement on the take-off board. PMID- 29018543 TI - Validity of Fitbit's active minutes as compared with a research-grade accelerometer and self-reported measures. AB - OBJECTIVES: The main purpose of the study was to assess the validity between the Fitbit and ActiGraph GT3X+ accelerometer. The specific aims were to determine the: (1) concurrent validity between the various models of the Fitbit and the GTX3+ accelerometer as the criterion measure for: number of steps and active minutes averaged over a single-day and 7-day period; (2) validity of the two devices with the International Physical Activity Questionnaire (IPAQ) for the number of daily active minutes performed. METHODS: Fifty-three subjects wore a Fitbit and ActiGraph concurrently for 7 days. Data were analysed using correlation coefficients, t-tests to assess mean comparisons and Bland-Altman plots to determine agreement between the Fitbit and the ActiGraph. RESULTS: The correlations between the Fitbit and ActiGraph for steps per day and per 7 days were r=0.862 and 0.820, respectively with significant mean differences between both devices. Bland-Altman analyses revealed agreement between the Fitbit and the ActiGraph for 7-day active minutes only. The correlations between the Fitbit and ActiGraph for active minutes per day and per 7 days were r=0.695 and r=0.658, respectively, with no significant mean differences between both devices. No significant correlations were found between the IPAQ and the other two devices. CONCLUSIONS: The data produced by the Fitbit were consistent with the ActiGraph when the means of each device were compared over the 1-day and 7-day time periods. However, Bland-Altman analyses revealed that the Fitbit agreed with the ActiGraph when used to measure physical activity levels over a 7-day span only. PMID- 29018544 TI - Verbal augmented feedback in the rehabilitation of lower extremity musculoskeletal dysfunctions: a systematic review. AB - BACKGROUND: Verbal augmented feedback (VAF) is commonly used in physiotherapy rehabilitation of individuals with lower extremity musculoskeletal dysfunction or to induce motor learning for injury prevention. Its effectiveness for acquisition, retention and transfer of learning of new skills in this population is unknown. OBJECTIVES: First, to investigate the effect of VAF for rehabilitation and prevention of lower extremity musculoskeletal dysfunction. Second, to determine its effect on motor learning and the stages of acquisition, retention and transfer in this population. DESIGN: Systematic review designed in accordance with the Centre for Reviews and Dissemination and reported in line with Preferred Reporting Items for Systematic Review and Meta-analysis. METHOD: MEDLINE, Embase, PubMed and five additional databases were searched to identify primary studies with a focus on VAF for prevention and rehabilitation of lower extremity musculoskeletal dysfunction. One reviewer screened the titles and abstracts. Two reviewers retrieved full text articles for final inclusion. The first reviewer extracted data, whereas the second reviewer audited. Two reviewers independently assessed risk of bias and quality of evidence using Cochrane Collaboration's tool and Grading of Recommendations Assessment, Development and Evaluation, respectively. RESULTS: Six studies were included, with a total sample of 304 participants. Participants included patients with lateral ankle sprain (n=76), postoperative ACL reconstruction (n=16) and healthy individuals in injury prevention (n=212). All six studies included acquisition, whereas retention was found in five studies. Only one study examined transfer of the achieved motor learning (n=36). VAF was found to be effective for improving lower extremity biomechanics and postural control with moderate evidence from five studies. CONCLUSION: VAF should be considered in the rehabilitation of lower extremity musculoskeletal dysfunctions. However, it cannot be unequivocally confirmed that VAF is effective in this population, owing to study heterogeneity and a lack of high-quality evidence. Nevertheless, positive effects on lower extremity biomechanics and postural control have been identified. This suggests that further research into this topic is warranted where an investigation of long-term effects of interventions is required. All stages (acquisition, retention and transfer) should be evaluated. PMID- 29018545 TI - Concussion in field hockey: a retrospective analysis into the incidence rates, mechanisms, symptoms and recovery of concussive injuries sustained by elite field hockey players. AB - OBJECTIVES: To identify the incidence and mechanisms of concussion in elite Field Hockey in different age groups and also the postconcussion symptoms and recovery times. METHODS: Data was collected retrospectively, for both training and matches, over a 12-month period from national level Field Hockey players across under-16, under-18, under-21, Development and Senior players. Mechanism of injury (including player role and field position), postconcussive symptoms and recovery times were recorded following a semistructured interview with each player. Additional information on training hours, matches and squad size were also recorded in order to calculate the incidence per 1000 match hours. RESULTS: Of the 28 recorded cases, only 11 could be included in the study. Women had the highest incidence of concussion, with the majority being in the under-21 age group. Overall incidence varied from 3/1000 match hours in training to 0.02/1000 match hours in matches, with an overall incidence of 0-0.02/1000 match hours across all age groups. The most common mechanism of injury was collision with another player, followed by impact from a stick or ball Midfield and attacking forwards sustained the highest incidence of concussion. None of the concussed athletes wore protective headgear (there were no cases of concussion in goal keepers) and all occurred in open play rather than a penalty corner (when protective headgear is often worn). Postconcussion headaches and difficulty concentrating were the most commonly reported postconcussion symptoms. Average recovery time and return-to-play was 2-4 weeks. CONCLUSIONS: Due to the low numbers, only limited conclusions can be made, but it would appear that the risk of concussion in elite Field Hockey is low. As age and skill increases, the risk decreases. Postconcussion symptoms and average return-to-play times are similar to other sports. From this study, no conclusions can be made as to the role of protective headgear to reduce the risk of concussion. PMID- 29018546 TI - Patient safety and quality of care in mental health: a world of its own? AB - Quality and safety in healthcare, as an academic discipline, has made significant progress over recent decades, and there is now an active and established community of researchers and practitioners. However, work has predominantly focused on physical health, despite broader controversy regarding the attention paid to, and significance attributed to, mental health. Work from both communities is required in order to ensure that quality and safety is actively embedded within mental health research and practice and that the academic discipline of quality and safety accurately represents the scientific knowledge that has been accumulated within the mental health community. PMID- 29018547 TI - A Devil's dictionary for mental health. AB - Clinical psychiatry, for all its emphasis on scientific rigour, is mediated mainly by words rather than by numbers. As with other professional areas, it has developed its own set of jargon words and phrases. Many of these are not the technical terms traditionally seen as jargon, but standard English words and phrases used in an idiosyncratic way. They therefore go unnoticed as jargon, while enfeebling our communications. I have used the template of Ambrose Bierce's The Devil's Dictionary to highlight some examples, with the aim of helping us all to talk, write and, perhaps, think more clearly. PMID- 29018548 TI - Personality disorder services in England: findings from a national survey. AB - Aims and method We aimed to evaluate the availability and nature of services for people affected by personality disorder in England by conducting a survey of English National Health Service (NHS) mental health trusts and independent organisations. Results In England, 84% of organisations reported having at least one dedicated personality disorder service. This represents a fivefold increase compared with a 2002 survey. However, only 55% of organisations reported that patients had equal access across localities to these dedicated services. Dedicated services commonly had good levels of service use and carer involvement, and engagement in education, research and training. However, a wider multidisciplinary team and a greater number of biopsychosocial interventions were available through generic services. Clinical implications There has been a substantial increase in service provision for people affected by personality disorder, but continued variability in the availability of services is apparent and it remains unclear whether quality of care has improved. PMID- 29018549 TI - Perceptions and knowledge of antipsychotics among mental health professionals and patients. AB - Aims and method To assess the patients' most influential concerns regarding long acting injectable antipsychotics (LAIs) and mental health professionals' preconceptions about these concerns. For both groups, to assess the level of knowledge about LAIs. This cross-sectional study used semi-structured interviews of patients with schizophrenia or schizoaffective disorder (n = 164), nurses (n = 43) and physicians (n = 20). Results The mental health professionals overestimated many of the patients' fears of LAIs, and the expressed fears exceeded the actual experiences of patients already on LAIs. Acceptance to switch to LAIs was associated with shorter time from diagnosis. Nurses and patients disclosed limited knowledge of antipsychotics. Clinical implications Physicians and nurses should aim to identify the individual patient's concerns about LAIs in the discussion about choice of antipsychotic treatment early in the course of illness. PMID- 29018550 TI - Mental capacity legislation in the UK: systematic review of the experiences of adults lacking capacity and their carers. AB - Aims and method Capacity legislation in the UK allows substitute decision-making for adults lacking capacity. Research has explored the experiences of such adults and their carers in relation to the Adults with Incapacity (Scotland) Act 2000, and the Mental Capacity Act 2005 in England and Wales. A systematic review of the relevant research was performed using a framework method. Results The legislation provided mechanisms for substitute decision-making which were seen as useful, but there were negative experiences. Decision-making did not always seem to follow the legislative principles. Awareness of the legislation was limited. Most research was qualitative and some was of low methodological quality. Data were too heterogeneous to allow comparisons between English and Scottish law. Clinical implications Capacity legislation was generally viewed positively. However, some experiences were perceived negatively, and the potential benefits of the legislation were not always utilised. PMID- 29018551 TI - Does the cognitive therapy of depression rest on a mistake? AB - Cognitive therapy for depression is common practice in today's National Health Service, yet it does not work well. Aaron Beck developed it after becoming disillusioned with the psychoanalytic theory and therapy he espoused and practised. But Beck's understanding of psychoanalysis appears to have been seriously flawed. Understood rightly, the psychoanalytic approach offers a cogent theory and therapy for depression which, unlike the cognitive approach, takes us to its emotional-motivational roots. A clinically successful therapy can afford to eschew theory and rest on its pragmatic laurels. This is not the case for cognitive therapy. The time is right to re-examine the psychoanalytic theory and treatment of depression. PMID- 29018552 TI - The cognitive therapy of depression rests on substantial theoretical, empirical and clinical foundations: a reply to Dr Gipps. AB - Dr Gipps claims that the cognitive therapy for depression rests on a mistake. But his anachronistic analysis of Beck's early research from the perspective of current psychoanalytic theory misses the point. The value of the research was not that it disproved psychoanalytic theory, but that it generated a model of depression that has revolutionised psychotherapy research. Psychoanalysts are belatedly adopting research methods that Beck pioneered half a century ago. The cognitive model of depression has explanatory power for both maintenance and vulnerability and has substantial research underpinning it. Cognitive therapy for depression has a larger body of evidence for its efficacy and relapse prevention effect than any other psychotherapy. Transference-focused approaches to depression have yet to establish themselves in the same way. PMID- 29018553 TI - Suicide patterns on the London Underground railway system, 2000-2010. AB - Aims and Method Suicidal acts on underground railway networks are an area of public health concern. Our aim was to review recent epidemiological patterns of suicidal acts on the London Underground to inform future preventive interventions. Data from 2000 to 2010 were obtained from the British Transport Police via a Freedom of Information request. Results The mean annual rate of suicidal acts from 2000 to 2010 was 5.8 per 100 million passenger journey stages. Of those who died by suicide, 77.3% were of White Northern European ethnicity. A fifth had a history of mental illness. Clinical implications The widening gap between the number of recorded suicide attempts and completed suicides is encouraging. Further research is required regarding the role of drug and alcohol use, psychiatric history and area of residence. Installation of platform screen doors should be considered in future railway network expansion. PMID- 29018554 TI - Psychiatric neurosurgery in the 21st century: overview and the growth of deep brain stimulation. AB - Ambulatory deep brain stimulation (DBS) became possible in the late 1980s and was initially used to treat people with movement disorders. Trials of DBS in people with treatment-resistant psychiatric disorder began in the late 1990s, initially focusing on obsessive-compulsive disorder, major depressive disorder and Tourette syndrome. Despite methodological issues, including small participant numbers and lack of consensus over brain targets, DBS is now being trialled in a wide range of psychiatric conditions. There has also been more modest increase in ablative procedures. This paper reviews these developments in the light of contemporary brain science, considers future directions and discusses why the approach has not been adopted more widely within psychiatry. PMID- 29018555 TI - Teaching provision for old age psychiatry in medical schools in the UK and Ireland: a survey. AB - Aims and method This work builds on a survey first done in 1999 to understand how old age psychiatry teaching is embedded in undergraduate medical schools in the UK and Ireland and the influence of academic old age psychiatrists on teaching processes. We invited deans of 31 medical schools in the UK and Ireland in 2015 to complete an online survey to reassess the situation 16 years later. Results Response rate was 74%. As found in the original survey, there was variation across medical schools in how old age psychiatry is taught. Half of schools stated there was not enough space in the curriculum dedicated to old age psychiatry, and not all medical school curricula offered a clinical attachment. Medical schools that involved academic old age psychiatrists in teaching (59%) showed a greater diversity of teaching methods. Clinical implications There is a need to recognise the importance of old age psychiatry teaching, with the consensus of opinion continuing to be that more curriculum space needs to be given to old age psychiatry. To achieve this we advocate increasing the number of old age psychiatrists with teaching roles, as relying on academics to teach and lead on curriculum development is challenging given their greater research pressures. PMID- 29018557 TI - Investigating a serious incident - a personal perspective. PMID- 29018556 TI - Profile: Derek Summerfield - politics and psychiatry. PMID- 29018558 TI - Management of common mental disorders for psychogeriatric patients in Hong Kong - a comparison of two clinics. PMID- 29018559 TI - Author's reply - the cognitive therapy of depression. PMID- 29018560 TI - Corrections. AB - [This corrects the article on p. 234 in vol. 41, PMID: 28811920.][This corrects the article on p. 197 in vol. 41, PMID: 28811913.][This corrects the article on p. 187 in vol. 41, PMID: 28811911.]. PMID- 29018561 TI - Disturbed EEG sleep, paranoid cognition and somatic symptoms identify veterans with post-traumatic stress disorder. AB - BACKGROUND: Chronic post-traumatic stress disorder (PTSD) behavioural symptoms and medically unexplainable somatic symptoms are reported to occur following the stressful experience of military combatants in war zones. AIMS: To determine the contribution of disordered EEG sleep physiology in those military combatants who have unexplainable physical symptoms and PTSD behavioural difficulties following war-zone exposure. METHOD: This case-controlled study compared 59 veterans with chronic sleep disturbance with 39 veterans with DSM-IV and clinician-administered PTSD Scale diagnosed PTSD who were unresponsive to pharmacological and psychological treatments. All had standardised EEG polysomnography, computerised sleep EEG cyclical alternating pattern (CAP) as a measure of sleep stability, self-ratings of combat exposure, paranoid cognition and hostility subscales of Symptom Checklist-90, Beck Depression Inventory and the Wahler Physical Symptom Inventory. Statistical group comparisons employed linear models, logistic regression and chi-square automatic interaction detection (CHAID)-like decision trees. RESULTS: Veterans with PTSD were more likely than those without PTSD to show disturbances in non-rapid eye movement (REM) and REM sleep including delayed sleep onset, less efficient EEG sleep, less stage 4 (deep) non-REM sleep, reduced REM and delayed onset to REM. There were no group differences in the prevalence of obstructive sleep apnoeas/hypopnoeas and periodic leg movements, but sleep disturbed, non-PTSD military had more EEG CAP sleep instability. Rank order determinants for the diagnosis of PTSD comprise paranoid thinking, onset to REM sleep, combat history and somatic symptoms. Decision-tree analysis showed that a specific military event (combat), delayed onset to REM sleep, paranoid thinking and medically unexplainable somatic pain and fatigue characterise chronic PTSD. More PTSD veterans reported domestic and social misbehaviour. CONCLUSIONS: Military combat, disturbed REM/non-REM EEG sleep, paranoid ideation and medically unexplained chronic musculoskeletal pain and fatigue are key factors in determining PTSD disability following war-zone exposure. DECLARATION OF INTEREST: None. COPYRIGHT AND USAGE: (c) The Royal College of Psychiatrists 2016. This is an open access article distributed under the terms of the Creative Commons Non Commercial, No Derivatives (CC BY-NC-ND) license. PMID- 29018562 TI - Local availability of green and blue space and prevalence of common mental disorders in the Netherlands. AB - BACKGROUND: Previous studies revealed a relationship between residential green space availability and health, especially mental health. Studies on blue space are scarcer and results less conclusive. AIMS: To investigate the hypotheses that green and blue space availability are negatively associated with anxiety and mood disorders, and positively associated with self-reported mental and general health. METHOD: Health data were derived from a nationally representative survey (NEMESIS-2, n=6621), using a diagnostic interview to assess disorders. Green and blue space availability were expressed as percentages of the area within 1 km from one's home. RESULTS: The hypotheses were confirmed, except for green space and mood disorders. Associations were generally stronger for blue space than for green space, with ORs up to 0.74 for a 10%-point increase. CONCLUSIONS: Despite the different survey design and health measures, the results largely replicate those of previous studies on green space. Blue space availability deserves more systematic attention. DECLARATION OF INTEREST: None. COPYRIGHT AND USAGE: (c) The Royal College of Psychiatrists 2016. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC ND) license. PMID- 29018563 TI - Pharmacotherapy of post-traumatic stress disorder: going beyond the guidelines. AB - SUMMARY: This article discusses the study of Harpaz-Rotem and associates, who examined patterns of medication use in first-diagnosed veterans with post traumatic stress disorder (PTSD). It considers the difference between practice guidelines and actual prescribing; selectively identifies issues with antidepressants, antipsychotics, benzodiazepines and prazosin; and reviews the possible impact of new medications in the pipeline. DECLARATION OF INTERESTS: In the past 36 months, J.D. has received compensation for consulting with Edgemont, Turing and Tonix Pharmaceuticals; royalties in connection with publications by Springer, Guilford and McFarland Publishers and use of the Connor-Davidson Resilience Scale, Davidson Trauma Scale, Social Phobia Inventory (SPIN) and Mini SPIN; service on the INTRuST Data Safety and Monitoring Board, University of California, San Diego. COPYRIGHT AND USAGE: (c) The Royal College of Psychiatrists 2016. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) license. PMID- 29018565 TI - Health-related quality of life and depression among participants in the Sjogren's International Collaborative Clinical Alliance registry. AB - OBJECTIVE: To examine health-related quality of life (HRQoL) and depression among participants in an international Sjogren's syndrome (SS) registry, comparing those with and without SS. METHODS: Cross-sectional study of participants in the Sjogren's International Collaborative Clinical Alliance (SICCA) registry. The 2016 American College of Rheumatology/European League Against Rheumatism SS classification criteria were used to determine disease status. HRQoL was assessed using the Short Form 12, version 2 Health Survey to derive scores for physical component summary (PCS) and mental component summary (MCS). Depression was assessed using the 9-Item Patient Health Questionnaire. Multivariate linear and logistic regression analyses were performed to identify predictors of HRQoL and depression while controlling for potential confounders. RESULTS: Among 2401 SICCA participants who had symptoms of dry eyes and dry mouth, 1051 had SS (44%) and 1350 did not (56%). After controlling for confounders, when compared with non-SS participants, those with SS had better PCS (p<0.001, beta=2.43, 95% CI 1.57 to 3.29), MCS (p=0.002, beta=1.37, 95% CI 0.50 to 2.23) and lower adjusted odds of depression (p<0.001, OR 0.67, 95% CI 0.55 to 0.81). Other significant predictors of HRQoL and depression included employment, country of residence and use of medication with anticholinergic effect or for management of SS-related signs and symptoms. CONCLUSION: Our results suggest that among symptomatic patients, having a diagnosis of SS may be associated with better emotional and psychological well being compared with patients without a diagnosis. Having a definitive diagnosis of SS may encourage patients to obtain a better understanding of their disease and have coping mechanisms in place to better manage their symptoms. PMID- 29018564 TI - Achieving comprehensive disease control in patients with early and established rheumatoid arthritis treated with adalimumab plus methotrexate versus methotrexate alone. AB - OBJECTIVE: To evaluate the achievement of comprehensive disease control (CDC) following 1 year of treatment with adalimumab+methotrexate versus methotrexate alone and whether early achievement of remission (at week 24 or 26) is associated with CDC at week 52 in patients with either early or established rheumatoid arthritis (RA). METHODS: Post hoc analyses were conducted in three clinical studies assessing treatment with adalimumab+methotrexate: DE019 (NCT00195702) enrolled patients with established RA who were methotrexate inadequate responders; OPTIMA (NCT00420927) and PREMIER (NCT00195663) enrolled methotrexate naive patients with early RA. In OPTIMA, patients not achieving stable low disease activity at weeks 22 and 26 in the placebo+methotrexate group could receive open-label adalimumab+methotrexate for 52 weeks (Rescue ADA arm). CDC was defined as the simultaneous achievement of clinical remission (DAS28(CRP)<2.6), normal function (HAQ-DI<0.5) and absence of radiographic progression (DeltamTSS<=0.5). RESULTS: Regardless of disease duration, significantly more patients receiving adalimumab+methotrexate achieved CDC compared with methotrexate alone. In the adalimumab+methotrexate group, a numerically greater proportion of patients with early RA (~25%) versus established RA (14%) achieved CDC at 1 year; achievement of CDC was notably greater among patients who met criteria for remission at week 24 or 26 (~50% of patients with early RA and 39% with established RA). CONCLUSION: Treatment with adalimumab+methotrexate increases the likelihood of achieving CDC in patients with either early or established RA. Clinical remission at week 24 or 26 is associated with achievement of CDC at week 52. TRIAL REGISTRATION NUMBER: DE019 (NCT00195702), OPTIMA (NCT00420927), PREMIER (NCT00195663); Post-results. PMID- 29018566 TI - Risks of smoking and benefits of smoking cessation on hospitalisations for cardiovascular events and respiratory infection in patients with rheumatoid arthritis: a retrospective cohort study using the Clinical Practice Research Datalink. AB - OBJECTIVES: To investigate the associations between smoking status, smoking cessation and hospitalisations for cardiovascular events (CVE) and respiratory tract infections (RTI) in an inception cohort of patients with rheumatoid arthritis (RA). METHODS: The study was set within UK primary care electronic health records (the Clinical Practice Research Datalink) linked to hospital inpatient data (Hospital Episode Statistics). Patients with RA were followed from diagnosis to hospitalisation with a record of CVE or RTI, leaving their general practice, death, or 10 January 2012, whichever was earliest. Smoking status (never, current, former) was defined using primary care data and could vary over time. Survival analysis was performed using Cox regression (first event) and conditional risk set models (multiple RTIs). RESULTS: 5677 patients were included in the cohort: 68% female, median age 61 years. The age-adjusted and sex-adjusted risks of hospitalisation for CVE or RTI were more than twice as high in current vs never smokers (CVE HR (95% CI) 2.19 (1.44 to 3.31); RTI 2.18 (1.71 to 2.78)). The risks for both outcomes were significantly higher in current compared with former smokers (CVE 1.51 (1.04 to 2.19), RTI 1.29 (1.04 to 1.61)). For each additional year of smoking cessation, the risk of first CVE and RTI hospitalisation fell significantly, approximately 25% and 15% respectively in the adjusted models. CONCLUSIONS: Patients with RA who smoke have an increased risk of hospitalisation with CVE or RTI compared with never and former smokers. The risk decreases for each additional year of smoking cessation. Patients with RA who smoke should be advised to stop smoking. PMID- 29018567 TI - Do we need bone mineral density to estimate osteoporotic fracture risk? A 10-year prospective multicentre validation study. AB - OBJECTIVE: Evaluate the performance of FRAX(r), with and without bone mineral densitometry (BMD), in predicting the occurrence of fragility fractures over 10 years. METHODS: Participants aged >=40 years at baseline, with a complete set of data and a minimum of 8.5 years of follow-up were identified from three cohorts (n=2626). Ten-year fracture risk at baseline were estimated with FRAX(r) and assessed by comparison with observed fractures and receiver operating characteristic analysis. RESULTS: During a mean (SD) follow-up of 9.12 (1.5) years, 178 participants suffered a major osteoporotic (MOP) fracture and 28 sustained a hip fracture. The predictive performance of FRAX(r) was superior to that of BMD alone for both MOP and hip fractures. The area under the curve (AUC) of FRAX(r) without BMD was 0.76 (95% CI 0.72 to 0.79) for MOP fractures and 0.78 (95% CI 0.69 to 0.86) for hip fractures. No significant improvements were found when BMD was added to clinical variables to predict either MOP (0.78, 95% CI 0.74 to 0.82, p=0.25) or hip fractures (0.79, 95% CI 0.69 to 0.89, p=0.72). AUCs for FRAX(r) (with and without BMD) were greater for men than for women. FRAX(r), with and without BMD, tended to underestimate the number of MOP fractures and to overestimate the number of hip fractures in females. In men, the number of observed fractures were within the 95% CI of the number predicted, both with and without BMD. CONCLUSION: FRAX(r) without BMD provided good fracture prediction. Adding BMD to FRAX(r) did not improve the performance of the tool in the general population. PMID- 29018568 TI - Person-focused care for young people with rheumatic and musculoskeletal diseases: young rheumatologists' and EULAR Young PARE perspectives. AB - In recent years, the evolution of healthcare challenged the management of people with rheumatic and musculoskeletal diseases (RMDs). From disease-centred care to person-focused care, a holistic approach along with patient empowerment about their disease, improved the physician-patient relationship and allowed to achieve better outcomes with lower healthcare costs. Nevertheless, RMDs may occur from childhood to the old age and to date very few studies have addressed the needs and priorities of young people with RMDs. However, the image of RMDs is still associated with the elderly population. In this regard, the group of young people with arthritis and rheumatism in Europe (PARE) was recently developed within European League Against Rheumatism to represent the voice of the young affected and to carry out projects aiming for a better understanding of these specific aspects. This viewpoint discusses the needs and priorities of young people compared with adult people with RMDs, based on the available literature and on the results of the PARE Youth research project, aiming to identify the next steps of actions that need to be taken to improve the current situation. PMID- 29018570 TI - Erratum: Cervical spine epidural abscess: a single center analytical comparison to the literature. AB - [This corrects the article DOI: 10.1038/scsandc.2017.36.]. PMID- 29018569 TI - Deconstructing a multiple antibiotic resistance regulation through the quantification of its input function. AB - Many essential bacterial responses present complex transcriptional regulation of gene expression. To what extent can the study of these responses substantiate the logic of their regulation? Here, we show how the input function of the genes constituting the response, i.e., the information of how their transcription rates change as function of the signals acting on the regulators, can serve as a quantitative tool to deconstruct the corresponding regulatory logic. To demonstrate this approach, we consider the multiple antibiotic resistance (mar) response in Escherichia coli. By characterizing the input function of its representative genes in wild-type and mutant bacteria, we recognize a dual autoregulation motif as main determinant of the response, which is further adjusted by the interplay with other regulators. We show that basic attributes, like its reaction to a wide range of stress or its moderate expression change, are associated with a strong negative autoregulation, while others, like the buffering of metabolic signals or the lack of memory to previous stress, are related to a weak positive autoregulation. With a mathematical model of the input functions, we identify some constraints fixing the molecular attributes of the regulators, and also notice the relevance of the bicystronic architecture harboring the dual autoregulation that is unique in E. coli. The input function emerges then as a tool to disentangle the rationale behind most of the attributes defining the mar phenotype. Overall, the present study supports the value of characterizing input functions to deconstruct the complexity of regulatory architectures in prokaryotic and eukaryotic systems. PMID- 29018571 TI - TRAIL DR5-CTSB crosstalk participates in breast cancer autophagy initiated by SAHA. AB - To investigate the ability of SAHA-induced TRAIL DR5-CTSB crosstalk to initiate the breast cancer autophagy, RTCA assay was performed to assess the effect of SAHA on breast cancer cells, and western blot and ELISA were used to verify the inductive effects on expression of CTSB. Breast cancer cells were transfected with TRAIL DR5 siRNA to block the function of TRAIL DR5. Cell viability and apoptosis of breast cancer cells were analyzed using a muse cell analyzer. The distribution of LC3-II in TRAIL DR5-silenced breast cancer cells treated with SAHA was observed by immunofluorescence microscopy, the mRNA levels of autophagy related genes were detected by RNA microarray, and the activity of autophagy related signaling pathways was screened by MAPK antibody array. Results indicated that SAHA did indeed repress the growth of breast cancer cell lines with inducing CTSB expression. Western blot and ELISA results indicated that TRAIL DR5 was involved in the expression of CTSB in SAHA-induced breast cancer cells. Cell viability and apoptosis assays showed that the inactivation of TRAIL DR5 can significantly inhibit the effects of SAHA. An immunofluorescence assay indicated that, with SAHA treatment, MDA-MB-231 and MCF-7 cells underwent apparent morphological changes. While SAHA was added in the TRAIL-DR5 blocked cells, the distribution of LC3-II signal was dispersed, the intensity of fluorescence signal was weaker than that of SAHA alone. RNA array indicated that SAHA significantly increased mRNA expression of autophagy marker LC3A/B whereas the change was significantly reversed in TRAIL DR5-silenced cells. The results of MAPK antibody array showed that SAHA and TRAIL DR5 could affect the activity of AKT1, AKT2, and TOR protein in breast cancer cells. These results provide more evidence that SAHA may stimulate TRAIL DR5-CTSB crosstalk, influence the activity of downstream TOR signalling pathway mainly through the AKTs pathway, and initiate the autophagy of breast cancer cells. PMID- 29018572 TI - Enhanced HOXA10 sumoylation inhibits embryo implantation in women with recurrent implantation failure. AB - HOXA10 has emerged as an important molecular marker of endometrial receptivity. Recurrent implantation failure (RIF) after in vitro fertilization-embryo transplantation (IVF-ET) treatment is associated with impaired endometrial receptivity, but the exact underlying mechanism of this phenomenon remains elusive. Here we found that HOXA10 was modified by small ubiquitin like-modifier 1 (SUMO1) at the evolutionarily conserved lysine 164 residue. Sumoylation inhibited HOXA10 protein stability and transcriptional activity without affecting its subcellular localization. SUMO1-modified HOXA10 expression was decreased in estradiol- and progesterone-treated Ishikawa cells. Sumoylation inhibited the accelerant role of HOXA10 in BeWo spheroid and mouse embryo attachment to Ishikawa cells. Importantly, aberrantly high SUMO1-HOXA10 expression was detected in mid-secretory endometria of women with RIF compared with that of the control fertile women. Together, our results suggest that HOXA10 sumoylation impairs the process of embryo implantation in vitro and takes part in the development of RIF. PMID- 29018574 TI - Continuing EGFR-TKI beyond radiological progression in patients with advanced or recurrent, EGFR mutation-positive non-small-cell lung cancer: an observational study. AB - BACKGROUND: Some patients with advanced or recurrent, epidermal growth factor receptor (EGFR) mutation-positive (EGFR M+) non-small-cell lung cancer (NSCLC) continue to receive EGFR tyrosine kinase inhibitors (TKIs) beyond radiological progression. METHODS: We analysed a cohort of 577 patients with EGFR M+ NSCLC, who had received a first-line EGFR-TKI. We classified patients according to clinical course and treatment patterns at Response Evaluation Criteria in Solid Tumors (RECIST) progressive disease (PD). We evaluated the period from RECIST PD to TKI discontinuation or clinical PD and also evaluated survival after RECIST PD and compared it between groups. RESULTS: RECIST PD was documented in 451 cases, of which 283 (62.7%) were clinically stable. 186 (65.7%) discontinued and 97 (34.3%) continued the EGFR-TKI. In those who continued EGFR-TKI, median time between RECIST PD and clinical PD or TKI discontinuation was 5.1 months. Median survival after RECIST PD in patients who discontinued and continued EGFR-TKI after clinically stable RECIST PD was 14.6 and 15.3 months (p=0.5489), respectively. In multivariate analysis, continuing EGFR-TKI therapy, female gender, better performance status and exon 19 deletion subtype were likely positive predictive factors for survival after clinically stable RECIST PD. CONCLUSION: Our study suggests that some patients could benefit from receiving an EGFR-TKI beyond radiological progression. PMID- 29018573 TI - How many diseases is triple negative breast cancer: the protagonism of the immune microenvironment. AB - Triple negative breast cancer (TNBC) is a type of breast cancer (BC) that does not express the oestrogen and the progesterone receptors and the human epidermal growth factor receptor type 2 (HER2). Since there are no positive markers to reliably classify TNBC, these tumours are not yet treated with targeted therapies. Perhaps for this reason they are the most aggressive form of breast carcinomas. However, the clinical observation that these patients do not carry a uniformly dismal prognosis, coupled with data coming from pathology and epidemiology, suggests that this negative definition is not capturing a single clinical entity, but several. We critically evaluate this evidence in this paper, reviewing clinical and epidemiological data and new studies that aim to subclassify TNBC. Moreover, evidence on the role of tumour infiltrating lymphocytes (TILs) on TNBC progression, response to chemotherapy and patient outcome have been published. The heterogeneity, observed even at TILs level, highlights the idea that TNBC is much more than a single disease with a unique treatment. The exploration of the immune environment present at the tumour site could indeed help in answering the question 'How many diseases is TNBC' and will help to define prognosis and eventually develop new therapies, by stimulating the immune effector cells or by inhibiting immunological repressor molecules. In this review, we focus on the prospect of the patient's diverse immune signatures within the tumour as potential biomarkers and how they could be modulated to fight the disease. PMID- 29018575 TI - Clinical outcome of patients with chemorefractory metastatic colorectal cancer treated with trifluridine/tipiracil (TAS-102): a single Italian institution compassionate use programme. AB - BACKGROUND: TAS-102 improves overall survival (OS) in patients with metastatic colorectal cancer (mCRC) refractory to standard treatments. However, predictive biomarkers of efficacy are currently lacking. PATIENTS AND METHODS: We treated a cohort of 43 chemorefractory mCRC patients treated with TAS-102, in a single institution expanded access, compassionate use programme. We stratified patients in two groups according to number of cycles received (<6 cycles and >=6 cycles). OS, progression-free survival (PFS) and safety were evaluated. RESULTS: Thirteen out of 43 patients (30%) obtained a clinically relevant disease control with TAS 102 therapy. Eleven of them were treated for >=6 cycles with TAS-102, reaching a median PFS of 7.5 months (95% CI 5.8 to 9.2 months) and a median OS of 11.2 months (95% CI range not reached yet). A trend towards significance (p=0.08) between a good performance status and response to TAS-102 was observed. Further, 7 out of the 11 TAS-102 long-treated patients achieved a clinical benefit from a previous treatment with regorafenib. A significant correlation between regorafenib and TAS-102 clinical efficacy was observed (p=0.008). Six out 13 regorafenib-naive patients were treated with regorafenib after progression from TAS-102. All these patients achieved SD with a median duration of treatment with regorafenib of 6.1 months (range, 1.6-6.7). CONCLUSION: Patients with mCRC in good clinical conditions, even though having been heavily pretreated with all the available treatment options, could obtain a significant clinical benefit from treatment with TAS-102. Moreover, a previous clinical benefit obtained with regorafenib is potentially predictive of clinical efficacy of subsequent TAS-102 treatment. PMID- 29018577 TI - Palliative treatment with radiation-emitting metallic stents in unresectable Bismuth type III or IV hilar cholangiocarcinoma. AB - BACKGROUND: The emerging data for stenting in combination with brachytherapy in unresectable hilar cholangiocarcinoma are encouraging. The aim of this study was to evaluate the efficacy and safety of radiation-emitting metallic stents (REMS) for unresectable Bismuth type III or IV hilar cholangiocarcinoma. PATIENTS AND METHODS: Consecutive patients who underwent percutaneous placement with REMS or uncovered self-expandable metallic stent (SEMS) for unresectable Bismuth type III or IV hilar cholangiocarcinoma between September 2011 and April 2016 were identified into this retrospective study. Data on patient demographics and overall survival, functional success, stent patency and complications were collected at the authors' hospital. RESULTS: A total of 59 patients were included: 33 (55.9%) in the REMS group and 26 (44.1%) in the SEMS group. The median overall survival was 338 days in the REMS group and 141 days in the SEMS group (p<0.001). The median stent patency time was 385 days for REMS and 142 days for SEMS (p<0.001). The functional success rate (87.9% vs 84.6%, p=0.722) and incidence of overall complications (27.3% vs 26.9%, p=0.999) did not differ in the two groups. CONCLUSIONS: Placement with REMS is safe and effective in palliation for unresectable Bismuth type III or IV hilar cholangiocarcinoma, and seems to prolong survival as well as patency of stent in these patients. PMID- 29018576 TI - Key differences between 13 KRAS mutation detection technologies and their relevance for clinical practice. AB - INTRODUCTION: This study assessed KRAS mutation detection and functional characteristics across 13 distinct technologies and assays available in clinical practice, in a blinded manner. METHODS: Five distinct KRAS-mutant cell lines were used to study five clinically relevant KRAS mutations: p.G12C, p.G12D, p.G12V, p.G13D and p.Q61H. 50 cell line admixtures with low (50 and 100) mutant KRAS allele copies at 20%, 10%, 5%, 1% and 0.5% frequency were processed using quantitative PCR (qPCR) (n=3), matrix-assisted laser desorption/ionisation time of-flight mass spectrometry (MALDI-TOF) (n=2), next-generation sequencing (NGS) (n=6), digital PCR (n=1) and Sanger capillary sequencing (n=1) assays. Important performance differences were revealed, particularly assay sensitivity and turnaround time. RESULTS: Overall 406/728 data points across all 13 technologies were identified correctly. Successful genotyping of admixtures ranged from 0% (Sanger sequencing) to 100% (NGS). 5/6 NGS platforms reported similar allelic frequency for each sample. One NGS assay detected mutations down to a frequency of 0.5% and correctly identified all 56 samples (Oncomine Focus Assay, Thermo Fisher Scientific). One qPCR (Idylla, Biocartis) and MALDI-TOF (UltraSEEK, Agena Bioscience) assay identified 96% (all 100 copies and 23/25 at 50 copies input) and 92% (23/25 at 100 copies and 23/25 at 50 copies input) of samples, respectively. The digital PCR assay (KRAS PrimePCR ddPCR, Bio-Rad Laboratories) identified 60% (100 copies) and 52% (50 copies) of samples correctly. Turnaround time from sample to results ranged from ~2 hours (Idylla CE-IVD) to 2 days (TruSight Tumor 15 and Sentosa CE-IVD), to 2 weeks for certain NGS assays; the level of required expertise ranged from minimal (Idylla CE-IVD) to high for some technologies. DISCUSSION: This comprehensive parallel assessment used high molecular weight cell line DNA as a model system to address key questions for a laboratory when implementing routine KRAS testing. As most of the technologies are available for additional molecular biomarkers, this study may be informative for other applications. PMID- 29018578 TI - The care of adolescents and young adults with cancer: results of the ESMO/SIOPE survey. AB - INTRODUCTION: Adolescents and young adults (AYA) with cancer require dedicated clinical management and care. Little is known about the training and practice of European healthcare providers in regard to AYA and the availability of specialised services. METHODS: A link to an online survey was sent to members of the European Society for Medical Oncology (ESMO) and the European Society for Paediatric Oncology (SIOPE). The link was also sent to ESMO National Representatives and circulated to other European oncology groups. Questions covered the demographics and clinical training of respondents, their definition of AYA, education about AYA cancer, access to specialised clinical and supportive care, research and further education. Data from Europe were analysed by region. RESULTS: Three hundred tweenty two questionnaires were submitted and we focused on data from the 266 European healthcare professionals. Responses revealed considerable variation both within and between countries in the definition of AYA. Over two-thirds of respondents did not have access to specialised centres for AYA (67%), were not aware of research initiatives focusing on AYA with cancer (69%) and had no access to specialist services for managing the late effects of treatment (67%). The majority of the respondents were able to refer AYA patients to professional psychological support and specialised social workers. However, more than half had no access to an age-specialised nurse or specialised AYA education. Overall, 38% of respondents reported that their AYA patients did not have access to fertility specialists. This figure was 76% in Eastern Europe. Lack of specialised AYA care was particularly evident in Eastern and South-Eastern Europe. CONCLUSION: There is important underprovision and inequity of AYA cancer care across Europe. Improving education and research focused on AYA cancer care should be a priority. PMID- 29018579 TI - TAS-102 and the quest for predictive biomarkers. PMID- 29018580 TI - A systematic review of cost-effectiveness, comparing traction to intramedullary nailing of femoral shaft fractures, in the less economically developed context. AB - INTRODUCTION: Femoral shaft fractures carry considerable morbidity and are increasingly common in less economically developed countries (LEDCs). Treatment options include traction and intramedullary (IM) nailing but in a limited resource environment; cost-effectiveness is fundamental to policy development. The objective herein was to evaluate the cost-effectiveness of moving from traction to IM nailing for femoral shaft fractures, in adults, in LEDCs. Incorporating a systematic review of complications and functional outcomes and a cost-minimization analysis. METHODS: PubMed, EMBASE, Africa Journals Online and the Cochrane Library were searched from inception using the terms: femur* AND fracture AND traction AND (sign OR nail* OR intramedullary) AND (cost effectiveness OR cost* OR outcome OR function) NOT paed* NOT child* NOT elastic NOT neck NOT intertrochanteric NOT periprosthetic (where asterisks indicate an unlimited truncation strategy). Abstracts were reviewed for all titles returned and full texts obtained as indicated. References of all relevant papers were also examined for further studies. RESULTS: IM nailing has been successfully used in several institutions and reported infection, union and reoperation rates are encouraging, although no randomised control trials were identified. Three studies assessed the cost aspect and all found IM nailing to be the cheaper strategy. CONCLUSION: To date, the improved complication profile and reduced cost of treatment suggest that IM nailing is more cost-effective than traction. Evidence, however, is limited and the necessity for appropriate training and audit with the introduction of new techniques must be emphasised. PMID- 29018581 TI - Cost-effectiveness of diagnostic-therapeutic strategies for paediatric visceral leishmaniasis in Morocco. AB - INTRODUCTION: Visceral leishmaniasis (VL) is a neglected parasitic disease with a high fatality rate if left untreated. Endemic in Morocco, as well as in other countries in the Mediterranean basin, VL mainly affects children living in rural areas. In Morocco, the direct observation of Leishmania parasites in bone marrow (BM) aspirates is used to diagnose VL and meglumine antimoniate (SB) is the first line of treatment. Less invasive, more efficacious and safer alternatives exist. In this study we estimate the cost-effectiveness of alternative diagnostic therapeutic algorithms for paediatric VL in Morocco. METHODS: A decision tree was used to estimate the cost-effectiveness of using BM or rapid diagnostic tests (RDTs) as diagnostic tools and/or SB or two liposomal amphotericin B (L-AmB) regimens: 6-day and 2-day courses to treat VL. Incremental cost-effectiveness ratios, expressed as cost per death averted, were estimated by comparing costs and effectiveness of the alternative algorithms. A threshold analysis evaluated at which price L-AmB became cost-effective compared with current practices. RESULTS: Implementing RDT and/or L-AmB treatments would be cost-effective in Morocco according to the WHO thresholds. Introducing the 6-day course L-AmB, current second-line treatment, would be highly cost-effective if L-AmB price was below US$100/phial. The 2-day L-AmB treatment, current standard treatment of paediatric VL in France, is highly cost-effective, with L-AmB at its market price (US$165/phial). CONCLUSIONS: The results of this study should encourage the implementation of RDT and/or short-course L-AmB treatments for paediatric VL management in Morocco and other North African countries. PMID- 29018582 TI - Effect of low-dose versus higher-dose antenatal iron supplementation on child health outcomes at 36 months of age in Viet Nam: longitudinal follow-up of a cluster randomised controlled trial. AB - INTRODUCTION: Intermittent iron-folic acid supplementation (IFA) is currently recommended for pregnant women in populations where anaemia prevalence among pregnant women is <20% or if daily iron is not acceptable. The effect of providing lower doses of antenatal elemental iron through intermittent regimes on longer-term health outcomes in childhood is unclear. METHODS: A prospective cohort study conducted between May 2012 and May 2014 in Viet Nam among children of 36 months of age, born to women previously enrolled in a cluster randomised controlled trial of antenatal micronutrient supplementation (daily IFA (60 mg elemental iron) vs twice-weekly IFA (60 mg elemental iron) vs twice-weekly multiple micronutrient (MMN) supplementation (60 mg elemental iron)). Primary outcomes were height-for-age z-scores (HAZ), according to WHO growth standards and cognitive composite scores (Bayley Scales of Infant and Toddler Development, third edition) at 36 months of age. RESULTS: A total of 1017 children born to mothers enrolled in the cluster randomised trial were assessed at 36 months of age. Adjusted mean differences (MDs) in HAZ were -0.14 (95% CI -0.28 to -0.01) and -0.15 (95% CI -0.29 to -0.01) in children born to mothers who received twice weekly IFA or MMN compared with those who received daily IFA. Children born to mothers who received twice-weekly MMN had lower composite motor scores compared with those who received daily IFA (MD -2.07, 95% CI -4.11 to -0.03). There were no differences in composite cognitive scores in the twice-weekly compared with daily regimens. CONCLUSIONS: Low-dose antenatal IFA supplementation (120 mg elemental iron per week) resulted in lower HAZ and motor composite scores in children compared with higher-dose antenatal IFA supplementation (420 mg elemental iron per week). This highlights the importance of adequate iron stores during pregnancy and the need for careful monitoring when lower-dose antenatal iron regimens are used. TRIAL REGISTRATION NUMBER: Australia New Zealand Clinical Trials Registry: 12610000944033. PMID- 29018584 TI - Affordability of comprehensive community health worker programmes in rural sub Saharan Africa. AB - INTRODUCTION: Community health worker (CHW) programmes have low costs per person served and are central to achieving universal healthcare. However, their total cost is high and the target of one million CHWs for sub-Saharan Africa by 2015 was not met. We consider the affordability of rural CHW programmes by estimating total programme costs relative to national healthcare expenditure at different CHW salaries and resources available for healthcare. METHODS: We combine an existing source of rural CHW programme costs with World Bank data to estimate relative CHW programme costs in 37 countries. We consider three 'salaries' (CHWs as volunteers, paid the local equivalent of US$80 per month and paid the national minimum wage) and four potential healthcare budgets (both actual and Abuja declaration allocations alone and increased by external funding received and potential foreign aid, respectively). Costs are shown in 2012 nominal US$. RESULTS: With CHWs paid the local equivalent of US$80 per month and financed from existing central government healthcare budgets, the median relative cost of a CHW programme would be 27% of the healthcare budget. While less than 2.5% in five countries (Botswana, Equatorial Guinea, Gabon, Namibia and South Africa), this relative cost would exceed 100% in three (Chad, Eritrea and Niger). There is a strong negative linear relationship (R2=0.83, p<0.001) between the natural logs of gross domestic product (GDP) per capita and affordability. In 23 countries with GDP per capita under US$1200, the cost of a CHW programme would exceed 12% of actual healthcare spending if CHWs were paid US$80 per month. CONCLUSION: CHWs may be a stepping stone to universal access to professional healthcare, but there is high variability in the affordability of CHW programmes across sub-Saharan Africa. In many countries, such programmes are not yet affordable unless significant foreign aid is received. PMID- 29018583 TI - Effects of nutrition interventions during pregnancy on low birth weight: an overview of systematic reviews. AB - INTRODUCTION: Low birth weight (LBW, birth weight less than 2500 g) is associated with infant mortality and childhood morbidity. Poor maternal nutritional status is one of several contributing factors to LBW. We systematically reviewed the evidence for nutrition-specific (addressing the immediate determinants of nutrition) and nutrition-sensitive (addressing the underlying cause of undernutrition) interventions to reduce the risk of LBW and/or its components: preterm birth (PTB) and small-for-gestational age (SGA). METHODS: We conducted a comprehensive literature search in MEDLINE, EMBASE, CINAHL and the Cochrane Database of Systematic Reviews (September 2015). Systematic reviews of randomised controlled trials focusing on nutritional interventions before and during pregnancy to reduce LBW and its components were eligible for inclusion into the overview review. We assessed the methodological quality of the included reviews using A Measurement Tool to Assess Reviews (AMSTAR), PROSPERO: CRD42015024814. RESULTS: We included 23 systematic reviews which comprised 34 comparisons. Sixteen reviews were of high methodological quality, six of moderate and only one review of low quality. Six interventions were associated with a decreased risk of LBW: oral supplementation with (1) vitamin A, (2) low-dose calcium, (3) zinc, (4) multiple micronutrients (MMN), nutritional education and provision of preventive antimalarials. MMN and balanced protein/energy supplementation had a positive effect on SGA, while high protein supplementation increased the risk of SGA. High dose calcium, zinc or long-chain n-3 fatty acid supplementation and nutritional education decreased the risk of PTB. CONCLUSION: Improving women's nutritional status positively affected LBW, SGA and PTB. Based on current evidence, especially MMN supplementation and preventive antimalarial drugs during pregnancy may be considered for policy and practice. However, for most interventions evidence was derived from a small number of trials and/or participants. There is a need to further explore the evidence of nutrition-specific and nutrition sensitive interventions in order to reach the WHO's goal of a 30% reduction in the global rate of LBW by 2025. PMID- 29018585 TI - Disentangling age-gender interactions associated with risks of fatal and non fatal road traffic injuries in the Sultanate of Oman. AB - OBJECTIVE: Road traffic injuries (RTIs) are the leading cause of disability adjusted life years lost in Oman, Saudi Arabia and United Arab Emirates. Injury prevention strategies often overlook the interaction of individual and behavioural risk factors in assessing the severity of RTI outcomes. We conducted a systematic investigation of the underlying interactive effects of age and gender on the severity of fatal and non-fatal RTI outcomes in the Sultanate of Oman. METHODS: We used the Royal Oman Police national database of road traffic crashes for the period 2010-2014. Our study was based on 35 785 registered incidents: of these, 10.2% fatal injuries, 6.2% serious, 27.3% moderate, 37.3% mild injuries and 19% only vehicle damage but no human injuries. We applied a generalised ordered logit regression to estimate the effect of age and gender on RTI severity, controlling for risk behaviours, personal characteristics, vehicle, road, traffic, environment conditions and geographical location. RESULTS: The most dominant group at risk of all types of RTIs was young male drivers. The probability of severe incapacitating injuries was the highest for drivers aged 25 29 (26.6%) years, whereas the probability of fatal injuries was the highest for those aged 20-24 (26.9%) years. Analysis of three-way interactions of age, gender and causes of crash show that overspeeding was the primary cause of different types of RTIs. In particular, the probability of fatal injuries among male drivers attributed to overspeeding ranged from 3%-6% for those aged 35 years and above to 13.4% and 17.7% for those aged 25-29 years and 20-24 years, respectively. CONCLUSIONS: The high burden of severe and fatal RTIs in Oman was primarily attributed to overspeed driving behaviour of young male drivers in the 20-29 years age range. Our findings highlight the critical need for designing early gender-sensitive road safety interventions targeting young male and female drivers. PMID- 29018586 TI - Sex practices and awareness of Ebola virus disease among male survivors and their partners in Guinea. AB - INTRODUCTION: Towards the end of the 2013-2016 West African outbreak, sexually transmitted Ebola virus re-emerged from Ebola virus disease (EVD) survivors in all three hardest hit countries. We explore sex practices and awareness of the risk of Ebola virus transmission among EVD survivors and their partners. METHODS: In this cross-sectional study, we recruited a convenience sample of study participants aged >15 years who were male EVD survivors, their sexual partners and a comparison group. We administered a questionnaire to all respondents, estimated self-reported sexual practices and risk awareness and conducted in depth interviews. RESULTS: We recruited 234 EVD survivors, 256 sexual partners of survivors and 65 individuals in the comparison group from five prefectures in Guinea. The prevalence of safe sexual behaviour (regular condom use or sexual abstinence >12 months) and regular condom use in EVD survivors was 38% (95% CI 31% to 44%) and 21% (95% CI 16% to 27%), respectively. Among partners, these prevalences were lower (11%, 95% CI 7% to 15% and 9%, 95% CI 5% to 12%, respectively). EVD survivors were more than five times as likely to engage in safe sexual behaviour compared with the comparison group (aOR 5.59, 95% CI 2.36 to 13.2). One-hundred and thirty one EVD survivors (57%) and 94 partners (37%) were aware of the risk of Ebola virus re-emergence associated with having unsafe sex. Partners who reported not being informed by their husband/boyfriend (EVD survivor) were more likely to be unaware of this risk (aOR 20.5, 95% CI 8.92 to 47.4). CONCLUSIONS: We disclose here a need to improve knowledge of the disease and close the gap between knowledge and practice found in EVD survivors and their partners. Current and future survivors' follow-up programmes should include partners and be more effective at communicating sex-related risks. Community level fears and attitudes that enable stigmatisation should be addressed. Safe sex interventions targeting EVD survivors and their partners should be prioritised. PMID- 29018587 TI - Closing the blood pressure gap: an affordable proposal to save lives worldwide. PMID- 29018588 TI - Do chain pharmacies perform better than independent pharmacies? Evidence from a standardised patient study of the management of childhood diarrhoea and suspected tuberculosis in urban India. AB - INTRODUCTION: Pharmacies and drug stores are frequently patients' first point of care in many low-income and middle-income countries, but their practice is often poor. Pharmacy retailing in India has traditionally been dominated by local, individually owned shops, but recent years have seen the growth of pharmacy chains. In theory, lower-powered profit incentives and self-regulation to preserve brand identity may lead to higher quality in chain stores. In practice, this has been little studied. METHODS: We randomly selected a stratified sample of chain and independent pharmacies in urban Bengaluru. Standardised patients (SPs) visited pharmacies and presented a scripted case of diarrhoea for a child and suspected tuberculosis (TB). SPs were debriefed immediately after the visit using a structured questionnaire. We measured the quality of history taking, therapeutic management and advice giving against national (Government of India) and international (WHO) guidelines. We used Pearson's chi2 tests to examine associations between pharmacy type and case management. FINDINGS: Management of childhood diarrhoea and suspected TB was woefully substandard. History taking of the SP was limited; unnecessary and harmful medicines, including antibiotics, were commonly sold; and advice giving was near non-existent. The performance of chains and independent shops was strikingly similar for most areas of assessment. We observed no significant differences between the management of suspected TB in chains and independents. 43% of chains and 45% of independents managed the TB case correctly; 17% and 16% of chains and independents, respectively, sold antibiotics. We found that chains sold significantly fewer harmful antibiotics and antidiarrhoeals (35% vs 48%, p=0.029) and prescription-only medicines (37% vs 49%, p=0.048) for the patient with diarrhoea compared with independent shops. Not a single shop managed the patient with diarrhoea correctly according to guidelines. CONCLUSION: Our results from Bengaluru suggest that it is unlikely that chains alone can solve persisting quality challenges. However, they may offer a potential vehicle through which to deliver interventions. Future intervention research should consider recruiting chains to see whether effectiveness of interventions differ among chains compared with independents. PMID- 29018589 TI - Neurological Complications in a Polynesian Traveler with Dengue. AB - In recent times, there has been an increased focus on mosquito-borne Flaviviruses, in particular dengue and Zika. With the reappearance of dengue in Hawai'i and the mainland United States (US), clinicians should be aware of both the common presentations of dengue, as well as other less common complications associated with the disease. Dengue can result in neurologic disorders such as encephalopathy, encephalitis, immune-mediated syndromes, neuromuscular dysfunction, and neuro-ophthalmologic disorders. We present an interesting case of dengue that initially presented with classic symptoms (arthropathy, biphasic fever, and rash) and subsequently developed into a neurologic movement disorder with muscle tightening and twitching of the face, chest, and extremities. We review and update the epidemiology, biology, the clinical presentations including the neurologic complications associated with dengue, as well as their management and areas of future study in this field. PMID- 29018591 TI - Medical School Hotline: John A. Burns School of Medicine Receives Continued Full Accreditation by the Liaison Committee on Medical Education (LCME) for the Maximum Accreditation Period of Eight Years. PMID- 29018590 TI - Key Factors in Obstetric Delivery Decision-Making among Asian and Pacific Islander Women by English Proficiency. AB - Childbirth is the most common reason women are hospitalized in the United States. Understanding (1) how expectant mothers gather information to decide where to give birth, and (2) who helps make that decision, provides critical health communication and decision-making insights. Diverse Asian American and Pacific Islander (AA/PI) perspectives on such topics are understudied, particularly among those with limited English proficiency (LEP). LEP is defined as having a limited ability to read, write, speak, or understand English. To address this research gap, we interviewed 400 women (18+ years) with a recent live birth on O'ahu, Hawai'i. Participants completed a 1-hour, in-person interview in English (n=291), Tagalog (n=42), Chinese (n=36), or Marshallese (n=31). Women were asked (1) what information was most important in deciding where to deliver and why; and (2) who participated in the decision-making and why. Responses were compared by LEP (n=71; 18%) vs English-proficient (n=329; 82%) in qualitative and quantitative analyses. Both LEP and English-proficient participants reported their obstetrician as the most important source of health information. Significantly more LEP participants valued advice from family or acquaintances as important sources of information compared to English-proficient participants. The top three health decision-makers for both those with LEP and English-proficient participants were themselves, their obstetrician, and their spouse, which did not differ significantly by language proficiency. These findings provide insights into health information sources and decision-making across diverse AA/PI populations, including those with LEP, and can help direct health interventions such as disseminating patient education and healthcare quality information. PMID- 29018592 TI - Insights in Public Health: Project Laulima: Expanding Hawai'i's System of Care to Better Serve Children and Youth with Co-occurring Mental Health Needs and Intellectual/Developmental Disabilities and their Families. PMID- 29018594 TI - Comparative study of Cd uptake and tolerance of two Italian ryegrass (Lolium multiflorum) cultivars. AB - Cadmium (Cd) is one of the most toxic heavy metals and is difficult to be removed from contaminated soil and water. Italian ryegrass (Lolium multiflorum), as an energy crop, exhibits a valuable potential to develop Cd polluted sites due to its use as a biofuel rather than as food and forage. Previously, via a screening for Cd-tolerant ryegrass, the two most extreme cultivars (IdyII and Harukaze) with high and low Cd tolerance during seed germination, respectively, were selected. However, the underlying mechanism for Cd tolerance was not well investigated. In this study, we comparatively investigated the growth, physiological responses, and Cd uptake and translocation of IdyII and Harukaze when the seedlings were exposed to a Cd (0-100 MUM) solution for 12 days. As expected, excess Cd inhibited seedling growth and was accompanied by an accumulation of malondialdehyde (MDA) and reduced photosynthetic pigments in both cultivars. The effects of Cd on the uptake and translocation of other nutrient elements (Zn, Fe, Mn and Mg) were dependent on Cd concentrations, cultivars, plant tissues and elements. Compared with Harukaze, IdyII exhibited better performance with less MDA and higher pigment content. Furthermore, IdyII was less efficient in Cd uptake and translocation compared to Harukaze, which might be explained by the higher non-protein thiols content in its roots. Taken together, our data indicate that IdyII is more tolerant than Harukaze, which partially resulted from the differences in Cd uptake and translocation. PMID- 29018595 TI - Assessing the living and dead proportions of cold-water coral colonies: implications for deep-water Marine Protected Area monitoring in a changing ocean. AB - Coral growth patterns result from an interplay of coral biology and environmental conditions. In this study colony size and proportion of live and dead skeletons in the cold-water coral (CWC) Lophelia pertusa (Linnaeus, 1758) were measured using video footage from Remotely Operated Vehicle (ROV) transects conducted at the inshore Mingulay Reef Complex (MRC) and at the offshore PISCES site (Rockall Bank) in the NE Atlantic. The main goal of this paper was to explore the development of a simple method to quantify coral growth and its potential application as an assessment tool of the health of these remote habitats. Eighteen colonies were selected and whole colony and dead/living layer size were measured. Live to dead layer ratios for each colony were then determined and analysed. The age of each colony was estimated using previously published data. Our paper shows that: (1) two distinct morphotypes can be described: at the MRC, colonies displayed a 'cauliflower-shaped' morphotype whereas at the PISCES site, colonies presented a more flattened 'bush-shaped' morphotype; (2) living layer size was positively correlated with whole colony size; (3) live to dead layer ratio was negatively correlated to whole colony size; (4) live to dead layer ratio never exceeded 0.27. These results suggest that as a colony develops and its growth rate slows down, the proportion of living polyps in the colony decreases. Furthermore, at least 73% of L. pertusa colonies are composed of exposed dead coral skeleton, vulnerable to ocean acidification and the associated shallowing of the aragonite saturation horizon, with significant implications for future deep-sea reef framework integrity. The clear visual contrast between white/pale living and grey/dark dead portions of the colonies also gives a new way by which they can be visually monitored over time. The increased use of marine autonomous survey vehicles offers an important new platform from which such a surveying technique could be applied to monitor deep-water marine protected areas in the future. PMID- 29018596 TI - A preliminary survey of zoantharian endosymbionts shows high genetic variation over small geographic scales on Okinawa-jima Island, Japan. AB - Symbiotic dinoflagellates (genus Symbiodinium) shape the responses of their host reef organisms to environmental variability and climate change. To date, the biogeography of Symbiodinium has been investigated primarily through phylogenetic analyses of the ribosomal internal transcribed spacer 2 region. Although the marker can approximate species-level diversity, recent work has demonstrated that faster-evolving genes can resolve otherwise hidden species and population lineages, and that this diversity is often distributed over much finer geographical and environmental scales than previously recognized. Here, we use the noncoding region of the chloroplast psbA gene (psbAncr) to examine genetic diversity among clade C Symbiodinium associating with the common reef zoantharian Palythoa tuberculosa on Okinawa-jima Island, Japan. We identify four closely related Symbiodinium psbAncr lineages including one common generalist and two potential specialists that appear to be associated with particular microhabitats. The sea surface temperature differences that distinguish these habitats are smaller than those usually investigated, suggesting that future biogeographic surveys of Symbiodinium should incorporate fine scale environmental information as well as fine scale molecular data to accurately determine species diversity and their distributions. PMID- 29018597 TI - Harnessing mtDNA variation to resolve ambiguity in 'Redfish' sold in Europe. AB - Morphology-based identification of North Atlantic Sebastes has long been controversial and misidentification may produce misleading data, with cascading consequences that negatively affect fisheries management and seafood labelling. North Atlantic Sebastes comprises of four species, commonly known as 'redfish', but little is known about the number, identity and labelling accuracy of redfish species sold across Europe. We used a molecular approach to identify redfish species from 'blind' specimens to evaluate the performance of the Barcode of Life (BOLD) and Genbank databases, as well as carrying out a market product accuracy survey from retailers across Europe. The conventional BOLD approach proved ambiguous, and phylogenetic analysis based on mtDNA control region sequences provided a higher resolution for species identification. By sampling market products from four countries, we found the presence of two species of redfish (S. norvegicus and S. mentella) and one unidentified Pacific rockfish marketed in Europe. Furthermore, public databases revealed the existence of inaccurate reference sequences, likely stemming from species misidentification from previous studies, which currently hinders the efficacy of DNA methods for the identification of Sebastes market samples. PMID- 29018599 TI - Qualitative study of healthcare providers' current practice patterns and barriers to successful rehydration for pediatric diarrheal illnesses in Kenya. AB - BACKGROUND: For children worldwide, diarrhea is the second leading cause of death. These deaths are preventable by fluid resuscitation. Nasogastric tubes (NGs) have been shown to be equivalent to intravenous fluids for rehydration and recommended by the World Health Organization (WHO) for use in severe dehydration. Despite this, NGs are rarely used for rehydration in Kenya. Our objective was to evaluate clinicians' adherence to rehydration guidelines and to identify barriers to the use of NGs for resuscitating dehydrated children. METHODS: A case-based structured survey was administered to pediatric care providers in western Kenya to determine their choices for alternative rehydration therapies when oral rehydration and intravenous fluids fail. Providers then participated in a qualitative, semi-structured interview to identify barriers to using nasogastric tubes for rehydration. Analysis included manual, progressive coding of interview transcripts to identify emerging central themes. RESULTS: Of 44 participants, only four (9%) followed WHO guidelines that recommend quickly switching to NG for rehydration in their case responses. Participants identified that placing intravenous lines in dehydrated children is a challenge. However, when discussing NG use, many believed NGs are not effective for rehydration. Other participants' concerns surrounded knowledge and training regarding guidelines as well as not having NGs available. DISCUSSION: Healthcare providers in western Kenya do not report using NGs for rehydration in accordance with WHO guidelines for diarrheal illness with severe dehydration. Barriers to the use of NG tubes were lack of knowledge and availability. Education and implementation of guidelines using NG tubes for rehydration may improve outcomes of children suffering from diarrheal illness with severe dehydration. PMID- 29018600 TI - Diverse responses of Symbiodinium types to menthol and DCMU treatment. AB - To understand the mechanism of photosynthetic inhibition and generation of reactive oxygen species (ROS) in Symbiodinium types under stress, chemicals such as dichlorophenyl dimethylurea (DCMU) are widely used. Moreover, DCMU and recently menthol were used to generate aposymbiotic cnidarian hosts. While the effects of DCMU on Symbiodinium cells have been extensively studied, no studies have shown the mechanism behind menthol-induced coral bleaching. Moreover, no study has compared the effects of DCMU and menthol treatments on photosystem II (PSII) activity and generation of ROS in different Symbiodinium types. In this study, we utilized five freshly isolated Symbiodinium types (S. minutum (B1), S. goreaui (C1), C3, C15, and S. trenchii (D1a)) to compare the effects of DCMU and menthol treatments. Symbiodinium cells were exposed to DCMU and menthol at different concentrations for 4 h. Results showed that values of the 50% inhibitory concentration (IC50) for PSII inhibition were 0.72~1.96 mM for menthol treated cells compared to 29~74 pM for DCMU-treated cells. Diverse responses of Symbiodinium types were displayed in terms of PSII tolerance to menthol (S. minutum > S. trenchii = C15 > C3 = S. goreaui), and also in the response curves. In contrast, responses were not so diverse when the different types were treated with DCMU. Three of five menthol-treated Symbiodinium types showed instant and significant ROS generation when PSII activity was inhibited, compared to no ROS being generated in DCMU-treated Symbiodinium types. Both results indicated that menthol inhibited Symbiodinium PSII activity through Symbiodinium type-dependent mechanisms, which were also distinct from those with DCMU treatment. This study further confirmed that photosynthetic functions Symbiodinium have diverse responses to stress even within the same clade. PMID- 29018601 TI - Sensory determinants of the autonomous sensory meridian response (ASMR): understanding the triggers. AB - The autonomous sensory meridian response (ASMR) is an atypical sensory phenomenon involving electrostatic-like tingling sensations in response to certain sensory, primarily audio-visual, stimuli. The current study used an online questionnaire, completed by 130 people who self-reported experiencing ASMR. We aimed to extend preliminary investigations into the experience, and establish key multisensory factors contributing to the successful induction of ASMR through online media. Aspects such as timing and trigger load, atmosphere, and characteristics of ASMR content, ideal spatial distance from various types of stimuli, visual characteristics, context and use of ASMR triggers, and audio preferences are explored. Lower-pitched, complex sounds were found to be especially effective triggers, as were slow-paced, detail-focused videos. Conversely, background music inhibited the sensation for many respondents. These results will help in designing media for ASMR induction. PMID- 29018598 TI - The Plasmodium berghei RC strain is highly diverged and harbors putatively novel drug resistance variants. AB - BACKGROUND: The current first line drugs for treating uncomplicated malaria are artemisinin (ART) combination therapies. However, Plasmodium falciparum parasites resistant to ART and partner drugs are spreading, which threatens malaria control efforts. Rodent malaria species are useful models for understanding antimalarial resistance, in particular genetic variants responsible for cross resistance to different compounds. METHODS: The Plasmodium berghei RC strain (PbRC) is described as resistant to different antimalarials, including chloroquine (CQ) and ART. In an attempt to identify the genetic basis for the antimalarial resistance trait in PbRC, its genome was sequenced and compared with five other previously sequenced P. berghei strains. RESULTS: We found that PbRC is eight-fold less sensitive to the ART derivative artesunate than the reference strain PbANKA. The genome of PbRC is markedly different from other strains, and 6,974 single nucleotide variants private to PbRC were identified. Among these PbRC private variants, non-synonymous changes were identified in genes known to modulate antimalarial sensitivity in rodent malaria species, including notably the ubiquitin carboxyl-terminal hydrolase 1 gene. However, no variants were found in some genes with strong evidence of association with ART resistance in P. falciparum such as K13 propeller protein. DISCUSSION: The variants identified in PbRC provide insight into P. berghei genome diversity and genetic factors that could modulate CQ and ART resistance in Plasmodium spp. PMID- 29018602 TI - Elevated serum osteoprotegerin may predict peripheral arterial disease after kidney transplantation: a single-center prospective cross-sectional study in Taiwan. AB - BACKGROUND: Osteoprotegerin (OPG) is a potential biomarker for severity and complications of cardiovascular diseases. Peripheral arterial disease (PAD) is associated with an increased risk of death in kidney transplantation (KT) patients. This prospective cross-sectional study evaluated the relationship between serum OPG and PAD in KT patients. METHODS: Seventy-four KT patients were enrolled for this PAD study. Fasting blood samples were obtained to measure serum OPG levels by using enzyme-linked immunosorbent assay kits. The ankle-brachial index (ABI) of less than 0.9 was applied for PAD diagnosis. RESULTS: Thirteen patients (17.6%) were diagnosed with PAD. Diabetes (P = 0.025), smoking (P = 0.010), and increased OPG levels (P = 0.001) were significantly more frequent in the PAD group. Multivariate logistic regression analysis showed that serum OPG (odds ratio [OR], 1.336; 95% CI [1.108-1.611]; P = 0.002) and diabetes (OR, 7.120; 95% CI [1.080-46.940]; P = 0.041) were independent predictors of PAD in KT patients. The area under the receiver operating characteristic (ROC) curve determined that the probability of a serum OPG level of 7.117 pg/L in predicting PAD in KT patients was 0.799 (95% CI [0.690-0.884]; P < 0.001). DISCUSSION: Exploration of reliable biomarkers for early identification of vascular risk is crucial for KT patients. Elevated serum OPG levels may predict PAD in KT patients with cutoff value of 7.117 pg/L. PMID- 29018603 TI - Assessment on the coupling effects of drip irrigation and organic fertilization based on entropy weight coefficient model. AB - Water and fertilizer are two important factors influencing crop growth, development and yield formation. To investigate their combined effects on the soil-plant system, and to find out the optimal water and organic fertilizer coupling strategy for tomato (Solanum lycopersicum L), an experiment was carried out from May to October in 2016 in the south of China. The experiment consisted of three drip irrigation quotas (150, 180, 210 m3/ha) and three organic fertilizer application amounts (2,800, 3,600, 4,400 kg/ha). A water-fertilizer treatment (abbreviated as CK) that is in line with local practice was used for comparison. The tomato marketable yield, sugar/acid ratio (SAR) and irrigation water use efficiency (IWUE), as well as the soil salinity and available nutrient concentrations were measured. The results showed that the marketable yield was highly significantly (p < 0.01) affected by irrigation or fertilization. The SAR of tomato were significantly (p < 0.05) affected by irrigation or/and fertilization. The fertilization had an highly significant (p < 0.01) effect on the concentrations of soil nutrients (N, P, K), while the coupling effect of irrigation and fertilization was not pronounced. According to the multi-index analysis and the computed result by the entropy weight coefficient model, a 180 m3/ha irrigation quota in combination with 4,400 kg/ha organic fertilizer application amount was the optimal water-fertilizer coupling strategy which owned the most satisfactory comprehensive benefits. The marketable yield, SAR and IWUE under this optimal strategy were 122.4 t/ha, 9.2, 32.4 kg/m3, respectively, and by 28.0%, 29.6% and 28.1% higher compared to that under CK. PMID- 29018604 TI - Effects of invasion history on physiological responses to immune system activation in invasive Australian cane toads. AB - The cane toad (Rhinella marina) has undergone rapid evolution during its invasion of tropical Australia. Toads from invasion front populations (in Western Australia) have been reported to exhibit a stronger baseline phagocytic immune response than do conspecifics from range core populations (in Queensland). To explore this difference, we injected wild-caught toads from both areas with the experimental antigen lipopolysaccharide (LPS, to mimic bacterial infection) and measured whole-blood phagocytosis. Because the hypothalamic-pituitary-adrenal axis is stimulated by infection (and may influence immune responses), we measured glucocorticoid response through urinary corticosterone levels. Relative to injection of a control (phosphate-buffered saline), LPS injection increased both phagocytosis and the proportion of neutrophils in the blood. However, responses were similar in toads from both populations. This null result may reflect the ubiquity of bacterial risks across the toad's invaded range; utilization of this immune pathway may not have altered during the process of invasion. LPS injection also induced a reduction in urinary corticosterone levels, perhaps as a result of chronic stress. PMID- 29018606 TI - Exceptional soft tissues preservation in a mummified frog-eating Eocene salamander. AB - Fossils are almost always represented by hard tissues but we present here the exceptional case of a three-dimensionally preserved specimen that was 'mummified' (likely between 40 and 34 million years ago) in a terrestrial karstic environment. This fossil is the incomplete body of a salamander, Phosphotriton sigei, whose skeleton and external morphology are well preserved, as revealed by phase-contrast synchrotron X-ray microtomography. In addition, internal structures composed of soft tissues preserved in three dimensions are now identified: a lung, the spinal cord, a lumbosacral plexus, the digestive tract, muscles and urogenital organs that may be cloacal glands. These are among the oldest known cases of three-dimensional preservation of these organs in vertebrates and shed light on the ecology of this salamander. Indeed, the digestive tract contains remains of a frog, which represents the only known case of an extinct salamander that fed on a frog, an extremely rare type of predation in extant salamanders. These new data improve our scarce knowledge on soft tissue anatomy of early urodeles and should prove useful for future biologists and palaeontologists working on urodele evolutionary biology. We also suggest that the presence of bat guano and carcasses represented a close source of phosphorus, favouring preservation of soft tissues. Bone microanatomy indicates that P. sigei was likely amphibious or terrestrial, and was probably not neotenic. PMID- 29018605 TI - Enhanced conflict monitoring via a short-duration, video-assisted deep breathing in healthy young adults: an event-related potential approach through the Go/NoGo paradigm. AB - OBJECTIVES: Practitioners of mindfulness are reported to have greater cognitive control especially in conflict monitoring, response inhibition and sustained attention. However, due to the various existing methods in each mindfulness practices and also, the high commitment factor, a barrier still exists for an individual to pick up the practices. Therefore, the effect of short duration deep breathing on the cognitive control is investigated here. METHODS: Short duration guided deep breathing videos consisting of 5, 7 and 9 min respectively were created and used on subjects training. The effect on cognitive control was assessed using a Go/NoGo task along with event-related potential (ERP) measurements at Fz, Cz, and Pz. RESULTS: From the study, the significant outcome showed at the follow-up session in which participants engaged for 5 min deep breathing group showed a profound NoGo N2 amplitude increment as compared to the control group, indicating an enhanced conflict monitoring ability. An inverse relationship between the NoGo N2 amplitude and the breathing duration is observed as well at the follow-up session. CONCLUSION: These results indicated the possibility of performing short duration deep breathing guided by a video to achieve an enhanced conflict monitoring as an alternative to other mindfulness practices and 5 min is found to be the optimum practice duration. SIGNIFICANT: This study is the first to establish a relationship between deep breathing and conflict monitoring through ERP. The study population of young adults taken from the same environment reduces the variance in ERP results due to age and environment. LIMITATION: A larger sample size would provide a greater statistical power. A longer duration of deep breathing should be investigated to further clarify the relationship between the practice duration and the NoGo N2 amplitude. The result can be split by gender and analyzed separately due to the different brain structure of males and females. PMID- 29018607 TI - Effects of astragalus polysaccharide on the adhesion-related immune response of endothelial cells stimulated with CSFV in vitro. AB - BACKGROUND: Astragalus polysaccharide (APS) has immunomodulatory activities on porcine peripheral blood mononuclear cells. The immunomodulatory effects of APS on porcine endothelial cells (ECs) expose to classical swine fever virus (CSFV) remain unknown. METHODS: The virus was titrated using an indirect immune biotin enzyme standard method to confirm that porcine ECs were susceptible to CSFV infection and to determine the TCID50 of CSFV (C-strain). Porcine ECs were cultured with CSFV in the presence of APS. Relative quantitative PCR was used to assess the mRNA expression of factors that influence EC adhesion and immunity. RESULTS: The expression of adhesion factors mRNA increased following stimulation with CSFV; this effect was inhibited by pre-exposing the cells to APS. In addition, the expression of growth factors and some immune factors increased after infection with CSFV; this increase in tissue factor (TF), transforming growth factor (TGF-beta), and interleukin-8 (IL-8) could be inhibited by the addition of APS. The immune response mediated by Toll-like receptor 4 (TLR4) in ECs may be unregulated by CSFV as it was also inhibited by pre-treatment with APS. DISCUSSION: The addition of APS to the culture can obviously regulate the expression of molecules related to the adhesion, growth, and immune response of ECs, as well as the production of cytokines. Therefore, it may have the potential to be an effective component in vaccines against CSFV. PMID- 29018608 TI - Development and validation of near-infrared spectroscopy for the prediction of forage quality parameters in Lolium multiflorum. AB - Italian ryegrass (Lolium multiflorum) is an important cool-season, annual forage crop for the grassland rotation system in Southern China. The primary aim of breeding programs is always to seek to improve forage quality in the animal productivity system; however, it is time- and labor-consuming when analyzed excessive large number of samples. The main objectives of this study were to construct near-infrared reflectance spectroscopy (NIRS) models to predict the forage chemistry quality of Italian ryegrass including the concentrations of crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), and water soluble carbohydrate (WSC). The results showed that a broader range of CP, NDF, ADF and WSC contents (%DM) were obtained (4.45-30.60, 21.29-60.47, 11.66 36.17 and 3.95-51.52, respectively) from the samples selected for developing NIRS models. In addition, the critical wavelengths identified in this study to construct optimal NIRS models were located in 4,247-6,102 and 4,247-5,450 cm-1 for CP and NDF content, and both wavelengths 5,446-6,102 and 4,247-4,602 cm-1 could for ADF and WSC. Finally, the optimal models were developed based on the laboratory data and the spectral information by partial least squares (PLS) regression, with relatively high coefficients of determination (R2CV, CP = 0.99, NDF = 0.94, ADF = 0.92, WSC = 0.88), ratio of prediction to devitation (RPD, CP = 8.58, NDF = 4.25, ADF = 3.64, WSC = 3.10). The further statistics of prediction errors relative to laboratory (PRL) and the range error ratio (RER) give excellent assessments of the models with the PRL ratios lower than 2 and the RER values greater than 10. The NIRS models were validated using a completely independent set of samples and have coefficients of determination (R2V, CP = 0.99, NDF = 0.91, ADF = 0.95, WSC = 0.91) and ratio of prediction to deviation (RPD, CP = 9.37, NDF = 3.44, ADF = 4.40, WSC = 3.39). The result suggested that routine screening for forage quality parameters with large numbers of samples is available with the NIRS model in Italian ryegrass breeding programs, as well as facilitating graziers to monitor the forage development stage for improving grazing efficiency. PMID- 29018609 TI - New whaitsioids (Therapsida: Therocephalia) from the Teekloof Formation of South Africa and therocephalian diversity during the end-Guadalupian extinction. AB - Two new species of therocephalian therapsids are described from the upper Permian Teekloof Formation of the Karoo Basin, South Africa. They include two specimens of a whaitsiid, Microwhaitsia mendrezi gen. et sp. nov., and a single, small whaitsioid Ophidostoma tatarinovi gen. et sp. nov., which preserves a combination of primitive and apomorphic features. A phylogenetic analysis of 56 therapsid taxa and 136 craniodental and postcranial characters places the new taxa within the monophyletic sister group of baurioids-Whaitsioidea-with Microwhaitsia as a basal whaitsiid and Ophidostoma as an aberrant whaitsioid just outside the hofmeyriid+whaitsiid subclade. The new records support that whaitsioids were diverse during the early-late Permian (Wuchiapingian) and that the dichotomy between whaitsiid-line and baurioid-line eutherocephalians was established early on. The oldest Gondwanan whaitsiid Microwhaitsia and additional records from the lower strata of the Teekloof Formation suggest that whaitsioids had diversified by the early Wuchiapingian and no later than Pristerognathus Assemblage Zone times. Prior extinction estimates based on species counts are reflected in an analysis of origination/extinction rates, which imply increasing faunal turnover from Guadalupian to Lopingian (late Permian) times. The new records support a growing body of evidence that some key Lopingian synapsid clades originated near or prior to the Guadalupian-Lopingian boundary ca. 260-259 million years ago, but only radiated following the end-Guadalupian extinction of dinocephalians and basal therocephalian predators (long-fuse model). Ongoing collecting in older portions of the Teekloof Formation (e.g., Pristerognathus Assemblage Zone) will shed further light on early eutherocephalians during this murky but critical time in their evolutionary diversification. PMID- 29018610 TI - Impact of land reclamation and agricultural water regime on the distribution and conservation status of the endangered Dryophytes suweonensis. AB - Knowledge about the distribution and habitat preferences of a species is critical for its conservation. The Suweon Treefrog (Dryophytes suweonensis) is an endangered species endemic to the Republic of Korea. We conducted surveys from 2014 to 2016 at 890 potentially suitable sites across the entire range of the species in South Korea. We then assessed whether D. suweonensis was found in the current and ancestral predicted ranges, reclaimed and protected areas, and how the presence of agricultural floodwater affected its occurrence. Our results describe a 120 km increase in the southernmost known distribution of the species, and the absence of the species at lower latitudes. We then demonstrate a putative constriction on the species ancestral range due to urban encroachment, and provide evidence for a significant increase in its coastal range due to the colonisation of reclaimed land by the species. In addition, we demonstrate that D. suweonensis is present in rice fields that are flooded with water originating from rivers as opposed to being present in rice fields that are irrigated from underground water. Finally, the non-overlap of protected areas and the occurrence of the species shows that only the edge of a single site where D. suweonensis occurs is legally protected. Based on our results and the literature, we suggest the design of a site fitting all the ecological requirements of the species, and suggest the use of such sites to prevent further erosion in the range of D. suweonensis. PMID- 29018611 TI - Clone wars: asexual reproduction dominates in the invasive range of Tubastraea spp. (Anthozoa: Scleractinia) in the South-Atlantic Ocean. AB - Although the invasive azooxanthellate corals Tubastraea coccinea and T. tagusensis are spreading quickly and outcompeting native species in the Atlantic Ocean, there is little information regarding the genetic structure and path of introduction for these species. Here we present the first data on genetic diversity and clonal structure from these two species using a new set of microsatellite markers. High proportions of clones were observed, indicating that asexual reproduction has a major role in the local population dynamics and, therefore, represents one of the main reasons for the invasion success. Although no significant population structure was found, results suggest the occurrence of multiple invasions for T. coccinea and also that both species are being transported along the coast by vectors such as oil platforms and monobouys, spreading these invasive species. In addition to the description of novel microsatellite markers, this study sheds new light into the invasive process of Tubastraea. PMID- 29018613 TI - Relationship between hemoglobin glycation index and extent of coronary heart disease in individuals with type 2 diabetes mellitus: a cross-sectional study. AB - BACKGROUND: Individuals with type 2 diabetes (T2D) are at an increased risk of coronary heart disease (CHD). Diabetic complications have recently been associated with a measure of glucose metabolism known as the hemoglobin glycation index (HGI). Currently there is insufficient information regarding a potential link between HGI and cardiovascular disease. This study aimed to investigate the relationship between HGI and extent of CHD in individuals with T2D. METHODS: This cross-sectional study screened individuals visiting the endocrinology clinic between June 2012 and May 2016 for eligibility. Enrollment criteria included individuals above 21 years of age with T2D diagnosed in the preceding ten years. Candidates with hemoglobin disorders, pregnancy, and existing coronary artery disease were excluded. Fasting plasma glucose (FPG) and glycated hemoglobin A1c (HbA1c) were sampled three months prior to angiography. The regression equation of predicted HbA1c = 0.008 * FPG + 6.28 described the linear relationship between these variables. HGI was calculated as the difference between the measured HbA1c and predicted HbA1c. Participants were classified into two groups according to the presence of supranormal (>=0) or subnormal HGI (<0). RESULTS: Among 423 participants, people with supranormal HGI harbored an increased prevalence of multiple vessel disease relative to those with subnormal HGI (Odds ratio (OR): 3.9, 95% CI [2.64-5.98], P < 0.001). Moreover, individuals with supranormal HGI more frequently demonstrated lesions involving the left anterior descending artery (OR: 3.0, 95% CI [1.97-4.66], P < 0.001). The intergroup difference in mean HbA1c was statistically nonsignificant (7.5 +/- 1.0% versus 7.4 +/- 1.1%, P = 0.80). DISCUSSION: This study demonstrated that HGI correlated with the extent of CHD in individuals with T2D. People with supranormal HGI harbored a higher prevalence of extensive cardiovascular disease compared to those with subnormal HGI. The relationship between HGI and extent of CHD enables cardiovascular risk stratification in at risk individuals. Overall, HGI provides useful information concerning cardiovascular risk in clinical practice. PMID- 29018612 TI - Segmentation and classification of colon glands with deep convolutional neural networks and total variation regularization. AB - Segmentation of histopathology sections is a necessary preprocessing step for digital pathology. Due to the large variability of biological tissue, machine learning techniques have shown superior performance over conventional image processing methods. Here we present our deep neural network-based approach for segmentation and classification of glands in tissue of benign and malignant colorectal cancer, which was developed to participate in the GlaS@MICCAI2015 colon gland segmentation challenge. We use two distinct deep convolutional neural networks (CNN) for pixel-wise classification of Hematoxylin-Eosin stained images. While the first classifier separates glands from background, the second classifier identifies gland-separating structures. In a subsequent step, a figure ground segmentation based on weighted total variation produces the final segmentation result by regularizing the CNN predictions. We present both quantitative and qualitative segmentation results on the recently released and publicly available Warwick-QU colon adenocarcinoma dataset associated with the GlaS@MICCAI2015 challenge and compare our approach to the simultaneously developed other approaches that participated in the same challenge. On two test sets, we demonstrate our segmentation performance and show that we achieve a tissue classification accuracy of 98% and 95%, making use of the inherent capability of our system to distinguish between benign and malignant tissue. Our results show that deep learning approaches can yield highly accurate and reproducible results for biomedical image analysis, with the potential to significantly improve the quality and speed of medical diagnoses. PMID- 29018614 TI - Anti-apoptotic properties of carbon monoxide in porcine oocyte during in vitro aging. AB - If fertilization of matured oocyte does not occur, unfertilized oocyte undergoes aging, resulting in a time-dependent reduction of the oocyte's quality. The aging of porcine oocytes can lead to apoptosis. Carbon monoxide (CO), a signal molecule produced by the heme oxygenase (HO), possesses cytoprotective and anti-apoptotic effects that have been described in somatic cells. However, the effects of CO in oocytes have yet to be investigated. By immunocytochemistry method we detected that both isoforms of heme oxygenase (HO-1 and HO-2) are present in the porcine oocytes. Based on the morphological signs of oocyte aging, it was found that the inhibition of both HO isoforms by Zn-protoporphyrin IX (Zn-PP IX) leads to an increase in the number of apoptotic oocytes and decrease in the number of intact oocytes during aging. Contrarily, the presence of CO donors (CORM-2 or CORM-A1) significantly decrease the number of apoptotic oocytes while increasing the number of intact oocytes. We also determined that CO donors significantly decrease the caspase-3 (CAS-3) activity. Our results suggest that HO/CO contributes to the sustaining viability through regulation of apoptosis during in vitro aging of porcine oocytes. PMID- 29018615 TI - A randomized control trial feasibility evaluation of an mHealth intervention for wheelchair skill training among middle-aged and older adults. AB - BACKGROUND: Providing mobility skills training to manual wheelchair (MWC) users can have a positive impact on community participation, confidence and quality of life. Often such training is restricted or not provided at all because of the expense of, and limited access to, occupational and physical therapists before and after discharge. This is particularly true among middle-aged and older adults, who often have limited access to rehabilitation services and require more time to learn motor skills. A monitored MWC skills training home program, delivered using a computer tablet (mHealth), was developed as an alternative approach to service delivery. The purpose of this study was to evaluate the feasibility of implementing this mHealth MWC skills training program among middle aged and older adults. METHODS: A 2 * 2 factorial design randomized controlled trial (RCT) was used to compare the mHealth intervention and control groups, with additional wheeling time as a second factor. Community-dwelling MWC users aged 55 and older, who had used their MWC for less than two years and propelled with two hands, were recruited. Feasibility outcomes related to process, resources, management and treatment criteria were collected. RESULTS: Eighteen participants were recruited, with a retention rate of 94%. Mean (+/-SD) duration for the first and second in-person training sessions were 90.1 +/- 20.5 and 62.1 +/- 5.5 min, respectively. In the treatment group, 78% achieved the minimum amount of home training (i.e., 300 min) over four weeks and 56% achieved the preferred training threshold (i.e., 600 min). Trainers reported only seven minor protocol deviations. No tablets were lost or damaged and there was one incident of tablet malfunction. No injuries or adverse incidents were reported during data collection or training activities. Participants indicated 98% agreement on the post-treatment benefit questionnaire. DISCUSSION: Overall, the study protocol enabled implementation of the intervention in a safe, efficient and acceptable manner. Participant recruitment proved to be challenging, particularly gaining access to individuals who might benefit. Resource issue demands were acceptable for administration of the intervention; data collection was more time-consuming than anticipated but could be reduced with minor revisions. Participant retention and home program treatment adherence was high; both participant and trainer burden was acceptable. Treatment group participants reported a positive experience and clinical benefits from training program. The findings suggest a full-scale RCT evaluating the clinical impact of the Enhancing Participation In the Community by improving Wheelchair Skills (EPIC Wheels) intervention is warranted, provided the recruitment issues are addressed through collaborative partnerships and active recruitment strategies. PMID- 29018616 TI - Integration of lncRNA-miRNA-mRNA reveals novel insights into oviposition regulation in honey bees. AB - BACKGROUND: The honey bee (Apis mellifera) is a highly diverse species commonly used for honey production and pollination services. The oviposition of the honey bee queen affects the development and overall performance of the colony. To investigate the ovary activation and oviposition processes on a molecular level, a genome-wide analysis of lncRNAs, miRNAs and mRNA expression in the ovaries of the queens was performed to screen for differentially expressed coding and noncoding RNAs. Further analysis identified relevant candidate genes or RNAs. RESULTS: The analysis of the RNA profiles in different oviposition phase of the queens revealed that 740 lncRNAs, 81 miRNAs and 5,481 mRNAs were differently expressed during the ovary activation; 88 lncRNAs, 13 miRNAs and 338 mRNAs were differently expressed during the oviposition inhibition process; and finally, 100 lncRNAs, four miRNAs and 497 mRNAs were differently expressed during the oviposition recovery process. In addition, functional annotation of differentially expressed RNAs revealed several pathways that are closely related to oviposition, including hippo, MAPK, notch, Wnt, mTOR, TGF-beta and FoxO signaling pathways. Furthermore, in the QTL region for ovary size, 73 differentially expressed genes and 14 differentially expressed lncRNAs were located, which are considered as candidate genes affecting ovary size and oviposition. Moreover, a core set of genes served as bridges among different miRNAs were identified through the integrated analysis of lncRNA-miRNA-mRNA network. CONCLUSION: The observed dramatic expression changes of coding and noncoding RNAs suggest that they may play a critical role in honey bee queens' oviposition. The identified candidate genes for oviposition activation and regulation could serve as a resource for further studies of genetic markers of oviposition in honey bees. PMID- 29018617 TI - Perch, Perca fluviatilis show a directional preference for, but do not increase attacks toward, prey in response to water-borne cortisol. AB - In freshwater environments, chemosensory cues play an important role in predator prey interactions. Prey use a variety of chemosensory cues to detect and avoid predators. However, whether predators use the chemical cues released by disturbed or stressed prey has received less attention. Here we tested the hypothesis that the disturbance cue cortisol, in conjunction with visual cues of prey, elevates predatory behavior. We presented predators (perch, Perca fluviatilis) with three chemosensory choice tests and recorded their location, orientation, and aggressive behavior. We compared the responses of predators when provided with (i) visual cues of prey only (two adjacent tanks containing sticklebacks); (ii) visual and natural chemical cues of prey vs. visual cues only; and (iii) visual cues of prey with cortisol vs. visual cues only. Perch spent a significantly higher proportion of time in proximity to prey, and orientated toward prey more, when presented with a cortisol stimulus plus visual cues, relative to presentations of visual and natural chemical cues of prey, or visual cues of prey only. There was a trend that perch directed a higher proportion of predatory behaviors (number of lunges) toward sticklebacks when presented with a cortisol stimulus plus visual cues, relative to the other chemosensory conditions. But they did not show a significant increase in total predatory behavior in response to cortisol. Therefore, it is not clear whether water-borne cortisol, in conjunction with visual cues of prey, affects predatory behavior. Our results provide evidence that cortisol could be a source of public information about prey state and/or disturbance, but further work is required to confirm this. PMID- 29018618 TI - Framework for community functioning: synthesis of stress gradient and resource partitioning concepts. AB - To understand how communities function and generate abundance, I develop a framework integrating elements from the stress gradient and resource partitioning concepts. The framework suggests that guild abundance depends on environmental and spatial factors but also on inter-guild interactions (competitor or facilitator richness), which can alter the fundamental niche of constituent species in negative (competition) or positive direction (facilitation). Consequently, the environmental and spatial mechanisms driving guild abundance would differ across guilds and interaction modes. Using continental data on stream diatoms and physico-chemistry, the roles of these mechanisms were tested under three interaction modes-shared preference, distinct preference, and facilitative, whereby pairs of guilds exhibited, respectively, a dominance tolerance tradeoff along a eutrophication gradient, specialization along a pH gradient, or a donor-recipient relationship along a nitrogen gradient. Representative of the shared preference mode were the motile (dominant) and low profile (tolerant) guilds, of the distinct preference mode-the acidophilous and alkaliphilous (low profile) guilds, and of the facilitative mode-nitrogen fixers (donors) and motile species (recipients). In each mode, the influences of environment, space (latitude and longitude), and competitor or facilitator richness on guild density were assessed by variance partitioning. Pure environment constrained most strongly the density of the dominant, the acidophilous, and the recipient guild in the shared preference, distinct preference, and facilitative mode, respectively, while spatial effects were important only for the low profile guild. Higher competitor richness was associated with lower density of the tolerant guild in the shared preference mode, both guilds in the distinct preference mode, and the donor guild in the facilitative mode. Conversely, recipient density in the facilitative mode increased with donor richness in stressful nitrogen-poor environments. Thus, diatom guild abundance patterns were determined primarily by biotic and/or environmental impacts and, with the exception of the low profile guild, were insensitive to spatial effects. This framework identifies major sources of variability in diatom guild abundance with implications for the understanding of biodiversity-ecosystem functioning. PMID- 29018619 TI - Alpha-arylphorin is a mitogen in the Heliothis virescens midgut cell secretome upon Cry1Ac intoxication. AB - Insecticidal crystal (Cry) proteins produced by the bacterium Bacillus thuringiensis (Bt) target cells in the midgut epithelium of susceptible larvae. While the mode of action of Cry toxins has been extensively investigated, the midgut response to Cry intoxication and its regulation are not well characterized. In this work, we describe the secreted proteome (secretome) of primary mature midgut cell cultures from Heliothis virescens larvae after exposure to Cry1Ac toxin compared to control buffer treatment. The Cry1Ac-induced secretome caused higher proliferation and differentiation and an overall reduction in total cell mortality over time in primary H. virescens midgut stem cell cultures when compared to treatment with control buffer secretome. Differential proteomics identified four proteins with significant differences in abundance comparing Cry1Ac-treated and control secretomes. The most significant difference detected in the Cry1Ac secretome was an arylphorin subunit alpha protein not detected in the control secretome. Feeding of purified alpha arylphorin to H. virescens larvae resulted in midgut hyperplasia and significantly reduced susceptibility to Cry1Ac toxin compared to controls. These data identify alpha-arylphorin as a protein with a new putative role in the midgut regeneration process in response to Cry1Ac intoxication and possibly pathogen/abiotic stress, identifying alpha-arylphorin as a potential gene to target with insecticidal gene silencing for pest control. PMID- 29018621 TI - The isolation and identification of pathogenic fungi from Tessaratoma papillosa Drury (Hemiptera: Tessaratomidae). AB - BACKGROUND: Litchi stink-bug, Tessaratoma papillosa Drury (Hemiptera: Tessaratomidae), is one of the most widespread and destructive pest species on Litchi chinensis Sonn and Dimocarpus longan Lour in Southern China. Inappropriate use of chemical pesticides has resulted in serious environmental problems and food pollution. Generating an improved Integrated Pest Management (IPM) strategy for litchi stink-bug in orchard farming requires development of an effective biological control agent. Entomopathogenic fungi are regarded as a vital ecological factor in the suppression of pest populations under field conditions. With few effective fungi and pathogenic strains available to control litchi stink bug, exploration of natural resources for promising entomopathogenic fungi is warranted. METHODS & RESULTS: In this study, two pathogenic fungi were isolated from cadavers of adult T. papillosa. They were identified as Paecilomyces lilacinus and Beauveria bassiana by morphological identification and rDNA-ITS homogeneous analysis. Infection of T. papillosa with B. bassiana and P. lilacinus occurred initially from the antennae, metameres, and inter-segmental membranes. Biological tests showed that the two entomopathogenic fungi induced high mortality in 2nd and 5th instar nymphs of T. papillosa. B. bassiana was highly virulent on 2nd instar nymphs of T. papillosa, with values for cadaver rate, LC50 and LT50 of 88.89%, 1.92 * 107 conidia/mL and 4.34 days respectively. DISCUSSION: This study provides two valuable entomopathogenic fungi from T. papillosa. This finding suggests that the highly virulent P. lilacinus and B. bassiana play an important role in the biocontrol of T. papillosa in China. These pathogenic fungi had no pollution or residue risk, and could provide an alternative option for IPM of litchi stink-bug. PMID- 29018620 TI - Mechanisms of action and in vivo antibacterial efficacy assessment of five novel hybrid peptides derived from Indolicidin and Ranalexin against Streptococcus pneumoniae. AB - BACKGROUND: Antimicrobial peptides (AMPs) are of great potential as novel antibiotics for the treatment of broad spectrum of pathogenic microorganisms including resistant bacteria. In this study, the mechanisms of action and the therapeutic efficacy of the hybrid peptides were examined. METHODS: TEM, SEM and ATP efflux assay were used to evaluate the effect of hybrid peptides on the integrity of the pneumococcal cell wall/membrane. DNA retardation assay was assessed to measure the impact of hybrid peptides on the migration of genomic DNA through the agarose gel. In vitro synergistic effect was checked using the chequerboard assay. ICR male mice were used to evaluate the in vivo toxicity and antibacterial activity of the hybrid peptides in a standalone form and in combination with ceftriaxone. RESULTS: The results obtained from TEM and SEM indicated that the hybrid peptides caused significant morphological alterations in Streptococcus pneumoniae and disrupting the integrity of the cell wall/membrane. The rapid release of ATP from pneumococcal cells after one hour of incubation proposing that the antibacterial action for the hybrid peptides is based on membrane permeabilization and damage. The DNA retardation assay revealed that at 62.5 ug/ml all the hybrid peptides were capable of binding and preventing the pneumococcal genomic DNA from migrating through the agarose gel. In vitro synergy was observed when pneumococcal cells treated with combinations of hybrid peptides with each other and with conventional drugs erythromycin and ceftriaxone. The in vivo therapeutic efficacy results revealed that the hybrid peptide RN7-IN8 at 20 mg/kg could improve the survival rate of pneumococcal bacteremia infected mice, as 50% of the infected mice survived up to seven days post-infection. In vivo antibacterial efficacy of the hybrid peptide RN7-IN8 was signficantly improved when combined with the standard antibiotic ceftriaxone at (20 mg/kg + 20 mg/kg) as 100% of the infected mice survived up to seven days post infection. DISCUSSION: Our results suggest that attacking and breaching the cell wall/membrane is most probably the principal mechanism for the hybrid peptides. In addition, the hybrid peptides could possess another mechanism of action by inhibiting intracellular functions such as DNA synthesis. AMPs could play a great role in combating antibiotic resistance as they can reduce the therapeutic concentrations of standard drugs. PMID- 29018622 TI - Accuracy of microbial community diversity estimated by closed- and open-reference OTUs. AB - Next-generation sequencing of 16S ribosomal RNA is widely used to survey microbial communities. Sequences are typically assigned to Operational Taxonomic Units (OTUs). Closed- and open-reference OTU assignment matches reads to a reference database at 97% identity (closed), then clusters unmatched reads using a de novo method (open). Implementations of these methods in the QIIME package were tested on several mock community datasets with 20 strains using different sequencing technologies and primers. Richness (number of reported OTUs) was often greatly exaggerated, with hundreds or thousands of OTUs generated on Illumina datasets. Between-sample diversity was also found to be highly exaggerated in many cases, with weighted Jaccard distances between identical mock samples often close to one, indicating very low similarity. Non-overlapping hyper-variable regions in 70% of species were assigned to different OTUs. On mock communities with Illumina V4 reads, 56% to 88% of predicted genus names were false positives. Biological inferences obtained using these methods are therefore not reliable. PMID- 29018623 TI - voomDDA: discovery of diagnostic biomarkers and classification of RNA-seq data. AB - RNA-Seq is a recent and efficient technique that uses the capabilities of next generation sequencing technology for characterizing and quantifying transcriptomes. One important task using gene-expression data is to identify a small subset of genes that can be used to build diagnostic classifiers particularly for cancer diseases. Microarray based classifiers are not directly applicable to RNA-Seq data due to its discrete nature. Overdispersion is another problem that requires careful modeling of mean and variance relationship of the RNA-Seq data. In this study, we present voomDDA classifiers: variance modeling at the observational level (voom) extensions of the nearest shrunken centroids (NSC) and the diagonal discriminant classifiers. VoomNSC is one of these classifiers and brings voom and NSC approaches together for the purpose of gene-expression based classification. For this purpose, we propose weighted statistics and put these weighted statistics into the NSC algorithm. The VoomNSC is a sparse classifier that models the mean-variance relationship using the voom method and incorporates voom's precision weights into the NSC classifier via weighted statistics. A comprehensive simulation study was designed and four real datasets are used for performance assessment. The overall results indicate that voomNSC performs as the sparsest classifier. It also provides the most accurate results together with power-transformed Poisson linear discriminant analysis, rlog transformed support vector machines and random forests algorithms. In addition to prediction purposes, the voomNSC classifier can be used to identify the potential diagnostic biomarkers for a condition of interest. Through this work, statistical learning methods proposed for microarrays can be reused for RNA-Seq data. An interactive web application is freely available at http://www.biosoft.hacettepe.edu.tr/voomDDA/. PMID- 29018624 TI - Genome methylation and regulatory functions for hypoxic adaptation in Tibetan chicken embryos. AB - Tibetan chickens have unique adaptations to the extreme high-altitude environment that they inhabit. Epigenetic DNA methylation affects many biological processes, including hypoxic adaptation; however, the regulatory genes for DNA methylation in hypoxic adaptation remain unknown. In this study, methylated DNA immunoprecipitation with high-throughput sequencing (MeDIP-seq) was used to provide an atlas of the DNA methylomes of the heart tissue of hypoxic highland Tibetan and lowland Chahua chicken embryos. A total of 31.2 gigabases of sequence data were generated from six MeDIP-seq libraries. We identified 1,049 differentially methylated regions (DMRs) and 695 related differentially methylated genes (DMGs) between the two chicken breeds. The DMGs are involved in vascular smooth muscle contraction, VEGF signaling pathway, calcium signaling pathway, and other hypoxia-related pathways. Five candidate genes that had low methylation (EDNRA, EDNRB2, BMPR1B, BMPRII, and ITGA2) might play key regulatory roles in the adaptation to hypoxia in Tibetan chicken embryos. Our study provides significant explanations for the functions of genes and their epigenetic regulation for hypoxic adaptation in Tibetan chickens. PMID- 29018625 TI - Hearing assessment during deep brain stimulation of the central nucleus of the inferior colliculus and dentate cerebellar nucleus in rat. AB - BACKGROUND: Recently it has been shown in animal studies that deep brain stimulation (DBS) of auditory structures was able to reduce tinnitus-like behavior. However, the question arises whether hearing might be impaired when interfering in auditory-related network loops with DBS. METHODS: The auditory brainstem response (ABR) was measured in rats during high frequency stimulation (HFS) and low frequency stimulation (LFS) in the central nucleus of the inferior colliculus (CIC, n = 5) or dentate cerebellar nucleus (DCBN, n = 5). Besides hearing thresholds using ABR, relative measures of latency and amplitude can be extracted from the ABR. In this study ABR thresholds, interpeak latencies (I-III, III-V, I-V) and V/I amplitude ratio were measured during off-stimulation state and during LFS and HFS. RESULTS: In both the CIC and the CNBN groups, no significant differences were observed for all outcome measures. DISCUSSION: DBS in both the CIC and the CNBN did not have adverse effects on hearing measurements. These findings suggest that DBS does not hamper physiological processing in the auditory circuitry. PMID- 29018626 TI - Cryptic biodiversity and phylogeographic patterns of Seychellois Ligia isopods. AB - Ligia isopods are conspicuous inhabitants of rocky intertidal habitats exhibiting several biological traits that severely limit their dispersal potential. Their presence in patchy habitats and low vagility may lead to long term isolation, allopatric isolation and possible cryptic speciation. Indeed, various species of Ligia have been suggested to represent instead cryptic species complexes. Past studies; however, have largely focused in Eastern Pacific and Atlantic species of Ligia, leaving in doubt whether cryptic diversity occurs in other highly biodiverse areas. The Seychelles consists of 115 islands of different ages and geological origins spread across the western Indian Ocean. They are well known for their rich biodiversity with recent reports of cryptic species in terrestrial Seychellois organisms. Despite these studies, it is unclear whether coastal invertebrates from the Seychelles harbor any cryptic diversity. In this study, we examined patterns of genetic diversity and isolation within Ligia isopods across the Seychelles archipelago by characterizing individuals from locations across both inner and outer islands of the Seychelles using mitochondrial and nuclear markers. We report the presence of highly divergent lineages of independent origin. At Aldabra Atoll, we uncovered a lineage closely related to the Ligia vitiensis cryptic species complex. Within the inner islands of Cousine, Silhouette, and Mahe we detected the presence of two moderately divergent and geographically disjunct lineages most closely related to Ligia dentipes. Our findings suggest that the Seychelles may harbor at least three novel species of Ligia in need of description and that these species may have originated independently. PMID- 29018627 TI - Independent evolution of tetraloop in enterovirus oriL replicative element and its putative binding partners in virus protein 3C. AB - BACKGROUND: Enteroviruses are small non-enveloped viruses with a (+) ssRNA genome with one open reading frame. Enterovirus protein 3C (or 3CD for some species) binds the replicative element oriL to initiate replication. The replication of enteroviruses features a low-fidelity process, which allows the virus to adapt to the changing environment on the one hand, and requires additional mechanisms to maintain the genome stability on the other. Structural disturbances in the apical region of oriL domain d can be compensated by amino acid substitutions in positions 154 or 156 of 3C (amino acid numeration corresponds to poliovirus 3C), thus suggesting the co-evolution of these interacting sequences in nature. The aim of this work was to understand co-evolution patterns of two interacting replication machinery elements in enteroviruses, the apical region of oriL domain d and its putative binding partners in the 3C protein. METHODS: To evaluate the variability of the domain d loop sequence we retrieved all available full enterovirus sequences (>6, 400 nucleotides), which were present in the NCBI database on February 2017 and analysed the variety and abundance of sequences in domain d of the replicative element oriL and in the protein 3C. RESULTS: A total of 2,842 full genome sequences was analysed. The majority of domain d apical loops were tetraloops, which belonged to consensus YNHG (Y = U/C, N = any nucleotide, H = A/C/U). The putative RNA-binding tripeptide 154-156 (Enterovirus C 3C protein numeration) was less diverse than the apical domain d loop region and, in contrast to it, was species-specific. DISCUSSION: Despite the suggestion that the RNA-binding tripeptide interacts with the apical region of domain d, they evolve independently in nature. Together, our data indicate the plastic evolution of both interplayers of 3C-oriL recognition. PMID- 29018628 TI - Combined moderate and high intensity exercise with dietary restriction improves cardiac autonomic function associated with a reduction in central and systemic arterial stiffness in obese adults: a clinical trial. AB - OBJECTIVE: The present study aimed to assess the effects of exercise with dietary restriction on cardiac autonomic activity, arterial stiffness, and cardiovascular biomarkers in obese individuals. METHODS: Seventeen obese adults completed an 8 week exercise and dietary program. Anthropometry, body composition, and multiple biochemical markers were measured. We used carotid-femoral pulse wave velocity (cfPWV), brachial-ankle pulse wave velocity (baPWV), central blood pressure, and augmentation index (AIx) to assess arterial stiffness. To determine cardiac autonomic activity, heart rate variability (HRV) was analyzed by standard deviation of normal-to-normal intervals (SDNN), square root of the mean squared differences of successive normal-to-normal intervals (RMSSD), total power (TF), low-frequency power in normalized units (LFnu), high-frequency power in normalized units (HFnu), and low-frequency power/high-frequency power (LF/HF). RESULTS: Following the exercise and diet intervention, obese subjects had significant reductions in body weight, body mass index, body fat percentage, brachial systolic blood pressure, and resting heart rate, and they had shown improvements in blood chemistry markers such as lipid profiles, insulin, and high sensitivity C-reactive protein. There was a significant reduction in both cfPWV and baPWV following the intervention when compared to baseline levels. Moreover, the AIx and aortic systolic blood pressure were significantly reduced after the intervention. The diet and exercise intervention significantly increased cardiac autonomic modulation (determined by improved SDNN, RMSSD, TP LF, HF, and LF/HF), which was partly due to changes in heart rate, insulin resistance, and the inflammatory pattern. Furthermore, we observed a correlation between enhanced cardiac autonomic modulation (LF/HF) and decreased arterial stiffness, as measured by central cfPWV and systemic baPWV. DISCUSSION: An 8-week combined intervention of diet and exercise is effective in improving cardiac autonomic function in obese adults, with an associated decrease in central and systemic arterial stiffness. PMID- 29018629 TI - In Vivo Brain Magnetic Resonance Spectroscopy: A Measurement of Biomarker Sensitivity to Post-Processing Algorithms. AB - Clinical translation of reported biomarkers requires reliable and consistent algorithms to derive biomarkers. However, the literature reports statistically significant differences between 1-D MRS measurements from control groups and subjects with disease states but frequently provides little information on the algorithms and parameters used to process the data. The sensitivity of in vivo brain magnetic resonance spectroscopy biomarkers is investigated with respect to parameter values for two key stages of post-acquisitional processing. Our effort is specifically motivated by the lack of consensus on approaches and parameter values for the two critical operations, water resonance removal, and baseline correction. The different stages of data processing also introduce varying levels of uncertainty and arbitrary selection of parameter values can significantly underutilize the intrinsic differences between two classes of signals. The sensitivity of biomarkers points to the need for a better understanding of how all stages of post-acquisitional processing affect biomarker discovery and ultimately, clinical translation. Our results also highlight the possibility of optimizing biomarker discovery by the careful selection of parameters that best reveal class differences. Using previously reported data and biomarkers, our results demonstrate that small changes in parameter values affect the statistical significance and corresponding effect size of biomarkers. Consequently, it is possible to increase the strength of biomarkers by selecting optimal parameter values in different spectral intervals. Our analyses with a previously reported data set demonstrate an increase in effect sizes for wavelet-based biomarkers of up to 36%, with increases in classification performance of up to 12%. PMID- 29018630 TI - A Versatile Ultrasound Simulation System for Education and Training in High Fidelity Emergency Scenarios. AB - Point of care ultrasonography and the related focused assessment with sonography for trauma protocol, if performed by experienced physicians, is a highly sensitive examination, and specific for the detection of free fluids. Different systems and methods have been proposed for training, including simulation as one of the most efficient. This paper presents an ultrasound training system, specifically designed to be used during bedside high fidelity simulation scenarios, that could facilitate the learning process. The development of the proposed system exploited novel rapid prototyping electronic boards as a means to obtain good performances with a low cost. Moreover, the design of the data structure permits the construction of a library that caters for individual needs, with the possibility of adding emergency scenarios, collecting pictures or videos, as well as 3-D volumes. The device has been compared with currently commercial ultrasound simulators and its innovative aspects have been highlighted. Finally, it has been tested during a training session in order to evaluate features, such as realism and user-friendliness. PMID- 29018631 TI - Multi-Parameter Ensemble Learning for Automated Vertebral Body Segmentation in Heterogeneously Acquired Clinical MR Images. AB - The development of quantitative imaging biomarkers in medicine requires automatic delineation of relevant anatomical structures using available imaging data. However, this task is complicated in clinical medicine due to the variation in scanning parameters and protocols, even within a single medical center. Existing literature on automatic image segmentation using MR data is based on the analysis of highly homogenous images obtained using a fixed set of pulse sequence parameters (TR/TE). Unfortunately, algorithms that operate on fixed scanning parameters do not avail themselves to real-world daily clinical use due to the existing variation in scanning parameters and protocols. Thus, it is necessary to develop algorithmic techniques that can address the challenge of MR image segmentation using real clinical data. Toward this goal, we developed a multi parametric ensemble learning technique to automatically detect and segment lumbar vertebral bodies using MR images of the spine. We use spine imaging data to illustrate our techniques since low back pain is an extremely common condition and a typical spine clinic evaluates patients that have been referred with a wide range of scanning parameters. This method was designed with special emphasis on robustness so that it can perform well despite the inherent variation in scanning protocols. Specifically, we show how a single multi-parameter ensemble model trained with manually labeled T2 scans can autonomously segment vertebral bodies on scans with echo times varying between 24 and 147 ms and relaxation times varying between 1500 and 7810 ms. Furthermore, even though the model was trained using T2-MR imaging data, it can accurately segment vertebral bodies on T1-MR and CT, further demonstrating the robustness and versatility of our methodology. We believe that robust segmentation techniques, such as the one presented here, are necessary for translating computer assisted diagnosis into everyday clinical practice. PMID- 29018632 TI - Patient-Specific Oscillometric Blood Pressure Measurement: Validation for Accuracy and Repeatability. AB - Oscillometric devices are widely used for automatic cuff blood pressure (BP) measurement. These devices estimate BP from the oscillometric cuff pressure waveform using population average methods. Hence, the devices may only be accurate over a limited BP range. The objective was to evaluate a new patient specific method, which estimates BP by fitting a physiologic model to the same waveform. One-hundred and forty-five cardiac catheterization patients and normal adults were included for study. The oscillometric cuff pressure waveform was obtained with an office device, while reference BP was measured via brachial artery catheterization or auscultation, during baseline and/or nitroglycerin administration. Fifty-seven of the subject records were utilized for refining the patient-specific method, while the remaining 88 subject records were employed for evaluation. The precision errors for all BP levels of the patient-specific method ranged from 6.3 to 7.6 mmHg. These errors were significantly lower than those of the office device (by 29% on average) in subjects with high pulse pressure (>50 mmHg) while being comparable to those of the device in subjects with normal pulse pressure (<50 mmHg). The bias and precision of the differences in repeated estimates for all BP levels of the patient-specific method ranged from 0.1 to 1.1 and 2.1 to 5.9 mmHg, respectively. These precision differences were significantly lower than those of the office device (by 64% on average). The patient-specific method may afford more accurate automatic cuff BP measurement in patients with large artery stiffening while limiting the number of required cuff inflations/deflations per measurement. PMID- 29018633 TI - A Software Tool for Heart AVJ Motion Tracking Using Cine Cardiovascular Magnetic Resonance Images. AB - One important index to assess left ventricular diastolic function is the quantitative measurement of atrioventricular junction (AVJ) motion in one cardiac cycle including systole and diastole. The best way to perform the measurement is to use a software tool that can conduct AVJ motion tracking from cine cardiovascular magnetic resonance (CMR) images. In this paper, a software tool for this purpose is presented by using the insight segmentation and registration toolkit (ITK), the visualization toolkit (VTK), and Qt. We propose a surface area based tracking approach in the software tool. In the tracking approach to obtain the surface area swept by six points being tracked, we manually select six points from four-, three- and two-chamber views of CMR images. After that, we reconstruct the 3-D coordinates of the six points from image acquisition parameters extracted from DICOM files. We perform interpolation by using parametric cubic curve fitting techniques. From the curve fitting results, we finally obtain the surface areas for all time points in one cardiac cycle. The software tool has been successfully implemented. The functionality include single point-based tracking, surface area-based tracking by using 6 tracked points, generation of displacement, sweep surface area and velocity, and generation of tracking movies. From the software engineering practice, it is concluded that ITK, VTK, and Qt are very handy software systems to implement automatic image analysis functions for CMR images, such as quantitative measure of motion by visual tracking. The software tool provides a convenient and efficient way to measure AVJ motion and extends the scope of methods for ventricular function assessment. PMID- 29018634 TI - Detection of Paroxysms in Long-Term, Single-Channel EEG-Monitoring of Patients with Typical Absence Seizures. AB - Absence seizures are associated with generalized 2.5-5 Hz spike-wave discharges in the electroencephalogram (EEG). Rarely are patients, parents, or physicians aware of the duration or incidence of seizures. Six patients were monitored with a portable EEG-device over four times 24 h to evaluate how easily outpatients are monitored and how well an automatic seizure detection algorithm can identify the absences. Based on patient-specific modeling, we achieved a sensitivity of 98.4% with only 0.23 false detections per hour. This yields a clinically satisfying performance with a positive predictive value of 87.1%. Portable EEG-recorders identifying paroxystic events in epilepsy outpatients are a promising tool for patients and physicians dealing with absence epilepsy. Albeit the small size of the EEG-device, some children still complained about the obtrusive nature of the device. We aim at developing less obtrusive though still very efficient devices, e.g., hidden in the ear canal or below the skin. PMID- 29018635 TI - A New Wavelet-Based ECG Delineator for the Evaluation of the Ventricular Innervation. AB - T-wave amplitude (TWA) has been proposed as a marker of the innervation of the myocardium. Until now, TWA has been calculated manually or with poor algorithms, thus making its use not efficient in a clinical environment. We introduce a new wavelet-based algorithm for the delineation QRS complexes and T-waves, and the automatic calculation of TWA. When validated in the MIT/BIH Arrhythmia database, the QRS detector achieved sensitivity and positive predictive value of 99.84% and 99.87%, respectively. The algorithm was validated also on the QT database and it achieved sensitivity of 99.50% for T-peak detection. In addition, the algorithm achieved delineation accuracy that is similar to the differences in delineation between expert cardiologists. We applied the algorithm for the evaluation of the influence in TWA of anticholinergic and antiadrenergic drugs (i.e., atropine and metoprolol) for healthy subjects. We found that the TWA decreased significantly with atropine and that metoprolol caused a significant increase in TWA, thus confirming the clinical hypothesis that the TWA is a marker of the innervation of the myocardium. The results of this paper show that the proposed algorithm can be used as a useful and efficient tool in clinical practice for the automatic calculation of TWA and its interpretation as a non-invasive marker of the autonomic ventricular innervation. PMID- 29018636 TI - Detecting Dementia Through Interactive Computer Avatars. AB - This paper proposes a new approach to automatically detect dementia. Even though some works have detected dementia from speech and language attributes, most have applied detection using picture descriptions, narratives, and cognitive tasks. In this paper, we propose a new computer avatar with spoken dialog functionalities that produces spoken queries based on the mini-mental state examination, the Wechsler memory scale-revised, and other related neuropsychological questions. We recorded the interactive data of spoken dialogues from 29 participants (14 dementia and 15 healthy controls) and extracted various audiovisual features. We tried to predict dementia using audiovisual features and two machine learning algorithms (support vector machines and logistic regression). Here, we show that the support vector machines outperformed logistic regression, and by using the extracted features they classified the participants into two groups with 0.93 detection performance, as measured by the areas under the receiver operating characteristic curve. We also newly identified some contributing features, e.g., gap before speaking, the variations of fundamental frequency, voice quality, and the ratio of smiling. We concluded that our system has the potential to detect dementia through spoken dialog systems and that the system can assist health care workers. In addition, these findings could help medical personnel detect signs of dementia. PMID- 29018637 TI - Tissue Variability and Antennas for Power Transfer to Wireless Implantable Medical Devices. AB - The design of effective transcutaneous systems demands the consideration of inevitable variations in tissue characteristics, which vary across body areas, among individuals, and over time. The purpose of this paper was to design and evaluate several printed antenna topologies for ultrahigh frequency (UHF) transcutaneous power transfer to implantable medical devices, and to investigate the effects of variations in tissue properties on dipole and loop topologies. Here, we show that a loop antenna topology provides the greatest achievable gain with the smallest implanted antenna, while a dipole system provides higher impedance for conjugate matching and the ability to increase gain with a larger external antenna. In comparison to the dipole system, the loop system exhibits greater sensitivity to changes in tissue structure and properties in terms of power gain, but provides higher gain when the separation is on the order of the smaller antenna dimension. The dipole system was shown to provide higher gain than the loop system at greater implant depths for the same implanted antenna area, and was less sensitive to variations in tissue properties and structure in terms of power gain at all investigated implant depths. The results show the potential of easily-fabricated, low-cost printed antenna topologies for UHF transcutaneous power, and the importance of environmental considerations in choosing the antenna topology. PMID- 29018638 TI - Automatic Sleep Monitoring Using Ear-EEG. AB - The monitoring of sleep patterns without patient's inconvenience or involvement of a medical specialist is a clinical question of significant importance. To this end, we propose an automatic sleep stage monitoring system based on an affordable, unobtrusive, discreet, and long-term wearable in-ear sensor for recording the electroencephalogram (ear-EEG). The selected features for sleep pattern classification from a single ear-EEG channel include the spectral edge frequency and multi-scale fuzzy entropy, a structural complexity feature. In this preliminary study, the manually scored hypnograms from simultaneous scalp-EEG and ear-EEG recordings of four subjects are used as labels for two analysis scenarios: 1) classification of ear-EEG hypnogram labels from ear-EEG recordings; and 2) prediction of scalp-EEG hypnogram labels from ear-EEG recordings. We consider both 2-class and 4-class sleep scoring, with the achieved accuracies ranging from 78.5% to 95.2% for ear-EEG labels predicted from ear-EEG, and 76.8% to 91.8% for scalp-EEG labels predicted from ear-EEG. The corresponding Kappa coefficients range from 0.64 to 0.83 for Scenario 1, and indicate substantial to almost perfect agreement, while for Scenario 2 the range of 0.65-0.80 indicates substantial agreement, thus further supporting the feasibility of in-ear sensing for sleep monitoring in the community. PMID- 29018639 TI - Managing Heart Failure at Home With Point-of-Care Diagnostics. AB - The objective of this paper is development of an inexpensive point-of-care sensor for detecting the primary heart failure marker peptide, NT-proBNP. The device technology is based on an antibody sandwich assay, but with three innovative aspects. First, chemical amplification is carried out via oxidation of silver nanoparticles (NPs) attached to signaling antibodies rather than by enzymatic amplification. The electrochemical method is faster and eliminates the need for long-term storage of enzymes. Second, the antibody sandwich is formed on mobile magnetic beads. This enhances the rate of mass transfer of the biomarker and the signaling antibody to the primary detection antibody, which is immobilized on the magnetic beads. Third, the sensor itself is fabricated on a paper platform with screen-printed electrodes. This coupled with assembly by simple paper folding, keeps the cost of the sensor low. Here, we report on two separate assays. The first is based on a simple biotin-streptavidin conjugate, which is a preliminary model for the antibody assay. The results indicate a detection limit of 2.1 pM of silver NPs and an assay time of 7 min. The actual NT-proBNP antibody assay takes somewhat longer, and the dynamic detection range is higher: 2.9-582 nM. On the basis of the results presented in this paper, we conclude that this inexpensive paper-based sensor represents a viable technology for point-of-care testing of NT proBNP, but nevertheless several challenges remain prior to clinical implementation. These include attaining a lower detection limit and better reproducibility, and optimizing the device for human blood. PMID- 29018640 TI - A Multi-Classifier System for Automatic Mitosis Detection in Breast Histopathology Images Using Deep Belief Networks. AB - Mitotic count is an important diagnostic factor in breast cancer grading and prognosis. Detection of mitosis in breast histopathology images is very challenging mainly due to diffused intensities along object boundary and shape variation in different stages of mitosis. This paper demonstrates an accurate technique for detecting the mitotic cells in Hematoxyline and Eosin stained images by step by step refinement of segmentation and classification stages. Krill Herd Algorithm-based localized active contour model precisely segments cell nuclei from background stroma. A deep belief network based multi-classifier system classifies the labeled cells into mitotic and nonmitotic groups. The proposed method has been evaluated on MITOS data set provided for MITOS-ATYPIA contest 2014 and also on clinical images obtained from Regional Cancer Centre (RCC), Thiruvananthapuram, which is a pioneer institute specifically for cancer diagnosis and research in India. The algorithm provides improved performance compared with other state-of-the-art techniques with average F-score of 84.29% for the MITOS data set and 75% for the clinical data set from RCC. PMID- 29018641 TI - Prevalence and Determinants of Frozen Shoulder in Patients with Diabetes: A Single Center Experience from Pakistan. AB - Introduction Frozen shoulder (FS) or adhesive capsulitis is a constellation of symptoms like pain, stiffness, and/or functional deficit at the glenohumeral joint. It is one of the musculoskeletal complications in patients with diabetes that can be particularly debilitating. The aim of this study is to estimate the prevalence of FS and to compare the determinants of this disease in a population with diabetes from Lahore, Pakistan. Materials and Methods We carried out this cross-sectional study on a systematically randomized sample of 80 patients with diabetes. It included 38 males and 42 females from 2,964 patients registered at the Diabetes Management Center, Services Hospital Lahore, Pakistan. The study was conducted in the months of April, May, and June 2017. A structured questionnaire was designed and the responses of patients were recorded at the clinic after informed verbal and written consent. The questionnaire outlined the key factors that can lead to a higher frequency of FS in patients with diabetes. Results Thirty-three of the total 80 respondents included in the study were diagnosed with FS. The estimated prevalence of FS in diabetics from this data was 41.3% in Lahore, which is an urban area of Pakistan with a population of more than seven million. Female sex, insulin dependence, uncontrolled blood glucose levels, and a positive family history were associated with a significantly higher prevalence of FS. In our study, most patients with FS were in Stage 1 of the disease and had unilateral involvement. Conclusion The present study shows that the prevalence of FS is higher in patients with diabetes residing in Lahore than in comparable foreign populations with diabetes. It can be attributed to socioeconomic status, lack of awareness, a higher threshold for diagnosis, and/or poor glycemic control. Mass awareness campaigns, especially for female patients with diabetes, are required to be initiated to create awareness about the disease and to facilitate early diagnosis and appropriate management. In-depth and multicenter studies are needed to further explore the association between FS and diabetes. PMID- 29018642 TI - Pulmonary Embolism Secondary to Testosterone-Enhancing Herbal Supplement Use. AB - Decreased testosterone levels in men are often a normal sign of aging. Testosterone replacement therapy (TRT) is a well-established option for those with symptomatic hypogonadism related to low testosterone levels. Conversely, designer herbal supplements in the context of testosterone supplementation are poorly studied, yet remain popular among aging men who seek the well-known, often enhancing, effects of testosterone that involve muscle mass and sexual function/drive. In 2014, the Food and Drug Administration (FDA) issued a warning about the significant risk of venous clots secondary to testosterone product use. Testosterone-induced polycythemia is one of the proposed mechanisms for this increased clotting propensity. Increased thromboxane A2 receptor density on platelets and increased platelet aggregation have also been linked to testosterone treatment in men. Fenugreek extract is a common active ingredient in commercially available herbal supplements that are often marketed as testosterone enhancers. It is thought that certain fenugreek compounds inhibit aromatase and 5 alpha-reductase activity, leading to diminished testosterone breakdown. However, the efficacy and safety profile of this agent in its use for boosting testosterone levels are unclear. In this case report, we present a patient with new-onset, bilateral pulmonary embolism possibly associated with the daily use of fenugreek-containing testosterone supplements. PMID- 29018643 TI - Case Reports, Case Series - From Clinical Practice to Evidence-Based Medicine in Graduate Medical Education. AB - Case reports and case series or case study research are descriptive studies that are prepared for illustrating novel, unusual, or atypical features identified in patients in medical practice, and they potentially generate new research questions. They are empirical inquiries or investigations of a patient or a group of patients in a natural, real-world clinical setting. Case study research is a method that focuses on the contextual analysis of a number of events or conditions and their relationships. There is disagreement among physicians on the value of case studies in the medical literature, particularly for educators focused on teaching evidence-based medicine (EBM) for student learners in graduate medical education. Despite their limitations, case study research is a beneficial tool and learning experience in graduate medical education and among novice researchers. The preparation and presentation of case studies can help students and graduate medical education programs evaluate and apply the six American College of Graduate Medical Education (ACGME) competencies in the areas of medical knowledge, patient care, practice-based learning, professionalism, systems-based practice, and communication. A goal in graduate medical education should be to assist residents to expand their critical thinking, problem-solving, and decision-making skills. These attributes are required in the teaching and practice of EBM. In this aspect, case studies provide a platform for developing clinical skills and problem-based learning methods. Hence, graduate medical education programs should encourage, assist, and support residents in the publication of clinical case studies; and clinical teachers should encourage graduate students to publish case reports during their graduate medical education. PMID- 29018644 TI - Mycobacterium Genavense Granuloma Mimicking a Brain Tumor: A Case Report. AB - Mycobacterium genavense (M. genavense) is a rare, non-tuberculous organism that commonly leads to gastrointestinal infections in immunocompromised patients. Only two cases of intracranial M. genavense infection have been reported to date. We describe a third case of M. genavense granuloma mimicking a right parietal intracranial mass, and review the literature on this exceedingly rare pathology. PMID- 29018646 TI - Hernia of Morgagni in the Elderly: A Case Report. AB - Congenital diaphragmatic hernias are infrequently encountered in adult patients. A rare type of this hernia is the Morgagni's hernia. Although they remain asymptomatic in a majority of patients, we present the case of an elderly patient who presented to us with abdominal pain and upper gastrointestinal bleeding. PMID- 29018645 TI - Dietary Therapy for Von Gierke's Disease: A Case Report. AB - Von Gierke's disease, also known as glycogen storage disease (GSD) type 1A, is an autosomal recessive disease in which there is an inability to cleave glycogen to glucose because of a glucose 6 phosphate deficiency resulting in hypoglycemia and lactic acidosis. The patient may present with hepatomegaly and signs and symptoms of hypoglycemia. We diagnosed a case of Von Gierke's disease in a seven-month-old female infant who was admitted for abdominal distension, vomiting, and lethargy for a duration of four months with characteristic rounded doll's face, fatty cheeks, protuberant abdomen, and massive hepatomegaly. Lab investigations showed low hemoglobin, low blood sugar level, lactic acidosis, hyperlipidemia, hyperuricemia, mild elevation of liver enzymes, and high anion gap metabolic acidosis. The diagnosis was confirmed with a liver biopsy and dietary treatment was started. This case report highlights the value of dietary therapy in improving the quality of life and survival and minimizing complications. PMID- 29018647 TI - Burden of Arrhythmias in Epilepsy Patients: A Nationwide Inpatient Analysis of 1.4 Million Hospitalizations in the United States. AB - Arrhythmias have been one of the common complications in epilepsy patients and have also been the reason for death. However, limited data exist about the burden and outcomes of arrhythmias by subtypes in epilepsy. Our study aims at evaluating the burden and differences in outcomes of various subtypes of arrhythmias in epilepsy patient population. The Nationwide Inpatient Sample (NIS) database from 2014 was examined for epilepsy and arrhythmias related discharges using appropriate International Classification of Disease, Ninth Revision Clinical Modification (ICD-9-CM) codes. The frequency of arrhythmias, gender differences in arrhythmia by subtypes, in-hospital outcomes and mortality predictors was analyzed. A total of 1,424,320 weighted epilepsy patients was determined and included in this study. Around 23.9% (n =277,230) patients had cardiac arrhythmias. The most frequent arrhythmias in the descending frequency were: atrial fibrillation (AFib) 9.7%, other unspecified causes 7.3%, sudden cardiac arrest (SCA) 1.4%, bundle branch block (BBB) 1.2%, ventricular tachycardia (VT) 1%. Males were more predisposed to cardiac arrhythmias compared to females (OR [odds ratio]: 1.1, p <0.001). The prevalence of most subtypes arrhythmias was higher in males. Arrhythmias were present in nearly a quarter of patients with epilepsy. Life threatening arrhythmias were more common in male patients. The length of stay (LOS) and mortality were significantly higher in epilepsy patients with arrhythmia. It is imperative to develop early diagnosis and prompt therapeutic measures to reduce this burden and poor outcomes due to concomitant arrhythmias in epilepsy patients. PMID- 29018648 TI - Os Odontoideum: A Comprehensive Clinical and Surgical Review. AB - Os odontoideum (OO) is a rare anomaly of the odontoid process first described by Giacomini in 1886. There is considerable debate about the origin of this anomaly, whether congenital or acquired, though a growing body of evidence favors the latter. Using PubMed, we reviewed the literature on OO with regards to its etiology, clinical presentations, diagnostic modalities, and management. Manuscripts cited in reviews were also searched manually. Because the medical literature on this condition is limited, our understanding of the natural history and management of OO is still vague. The management guidelines for asymptomatic OO are preliminary. Therefore, we need more large-center studies to investigate this condition further. PMID- 29018649 TI - Rapid Recanalization Using TrevoProVue through a 4.2 Fr Catheter without a Guiding Catheter via Transbrachial Approach: A Case Report. AB - Mechanical thrombectomy with a stent retriever has been reported to achieve high rates of successful recanalization, and reduce disability and mortality in patients with acute ischemic stroke (AIS) due to proximal vessel occlusion. However, in a few cases, the treatment is difficult due to artery tortuosity or other factors. The authors present a case of a 94-year-old man presenting with acute right middle cerebral artery occlusion. We attempted to treat using a stent retriever via transfemoral approach, but failed to advance the guiding catheter into the right internal carotid artery due to femoral artery tortuosity and a type III arch. By changing approaches from transfemoral to transbrachial and by using TrevoProVue through a 4.2 Fr Simmons-type catheter without a guiding catheter, we were able to achieve rapid recanalization in only 26 minutes from brachial artery puncture to reperfusion. In conclusion, rapid reperfusion in an AIS patient was successfully achieved by combining a stent retriever with a 4.2 Fr catheter (without a guiding catheter) and a transbrachial approach (as opposed to a transfemoral approach). When the transfemoral approach is not feasible, we recommend consideration of this strategy as an alternative. PMID- 29018650 TI - Surgical Treatment of Rotational Vertebral Artery Syndrome Induced by Spinal Tumor: A Case Report and Literature Review. AB - Vertebrobasilar insufficiency (VBI) provoked by physiological head rotation is known as rotational vertebral artery syndrome (RVAS) or Bow Hunter syndrome. RVAS most often occurs at C1-2 level with head rotation and presents with symptoms of VBI. Several previously published studies have reported RVAS at subaxial sites (V2 segment), however, tumor-induced RVAS has never been reported. The authors report the first case of RVAS at V2 segment due to compression from a spinal tumor. A 71-year-old man presented with symptoms of dizziness provoked by head rotation or neck extension. computed tomography (CT) angiography and dynamic cerebral angiography revealed circumferential stenosis with neutral neck position and complete occlusion of the left dominant vertebral artery (VA) at C5 level with his neck extended or rotated to the left. Complete neurological recovery was achieved after removal of a spinal osteochondroma and surgical decompression of the left VA via an anterior approach. Spinal tumors should be included in the differential diagnosis in cases of RVAS. Spinal degenerations or sarcomatous transformation of the tumor could lead to clinical manifestations of RVAS in cases with spinal osteochondroma. Complete removal of the tumor with or without spinal fusion would be the treatment of choice, in addition to medical treatment in the cases of acute stroke. PMID- 29018651 TI - A Case of Vertebral Artery Fusiform Aneurysm Treated by Flow Alteration: Successful Prediction of Therapeutic Effects Using Computational Fluid Dynamics. AB - The treatment of intracranial complicated aneurysms remains challenging. In patients with complicated aneurysms that are neither clippable nor coilable, flow alteration treatment (FAT) with a combined procedure of proximal/distal occlusion or trapping of an aneurysm with bypass surgery has been reported. However, it is difficult to predict whatever FAT can achieve aneurysmal obliteration without ischemic complications. A 69-year-old female was incidentally diagnosed with a left vertebral artery (VA) fusiform aneurysm distal to the left posterior inferior cerebellar artery (PICA). Because one-year follow-up three-dimensional computed tomography angiography showed that the aneurysm grew significantly, surgical management was considered the therapy of choice. For determining treatment strategies, we assumed left VA occlusion at the proximal to the left PICA as a FAT model and performed computational fluid dynamics (CFD) analyses. The FAT model had much lower wall shear stress and shear rate at the aneurysm dome than presumed thresholds necessary to thrombus formation, while those at the PICA were obviously higher than the thresholds, and streamlines into the left PICA from the distal VA were preserved. These findings theoretically meant that surgical occlusion of the left VA proximal to the left PICA and aneurysm would induce intra-aneurysmal thrombus formation with preservation of the left PICA flow. The treatment was performed successfully and achieved the predicted results. CFD simulations may be useful to predict effects of FAT for complicated aneurysms. PMID- 29018652 TI - Anastomotic Aneurysm Formation after High Flow Bypass Surgery: A Case Report with Histopathological Study. AB - Bypass surgery is often used in the treatment of large and giant aneurysms. Major complications that often arise during the perioperative period include cranial nerve palsy, ischemic complications, and hyperperfusion. However, there have been a few reports about late onset complications such as anastomotic aneurysms. In particular, anastomotic aneurysm after high flow bypasses has never been reported. A 57-year-old woman who had been suffering from left eye pain was diagnosed with a large aneurysm of the left internal carotid artery (ICA) in the cavernous portion. She was treated with high flow bypass surgery using radial artery graft and proximal ICA ligation. One and a half year after surgery, a de novo aneurysm (7.5 mm in maximum diameter) was detected in the anastomotic site. To prevent rupture, the aneurysm was resected and the middle cerebral artery (MCA) was reconstructed via superficial temporal artery (STA)-MCA bypass. Postoperative course was uneventful and the anastomotic aneurysm did not recur until 2 years after second surgery. Histological evaluation of the anastomotic aneurysm demonstrated loss of smooth muscle cells and proliferation of neointima, features consistent with a true aneurysm. Interestingly, the above changes were prominent in the radial artery graft while the MCA was almost histologically intact. As such, intraoperative intimal damage and postoperative hemodynamic stress to the radial artery graft may be a cause of aneurysm formation. Anastomotic aneurysm may occur after high flow bypass, necessitating careful postoperative follow-up. PMID- 29018653 TI - Chiari Type 1 Malformation-induced Intracranial Hypertension with Diffuse Brain Edema Treated with Foramen Magnum Decompression: A Case Report. AB - Chiari type 1 malformation (CM1) rarely causes papilloedema, which is indicative of high intracranial pressure with or without ventricular dilatation. Furthermore, concomitant brain parenchymal abnormalities have not been reported to date. In this paper, the authors report on a young woman of CM1-induced intracranial hypertension (ICH) with diffuse brain edema with a focus on venous sinus assessment, and discuss the surgical strategy. A 24-year-old woman presented to Nagoya University Hospital complaining of 4-year history of severe occipital headache and blurry vision with slowly progressive worsening. Head and whole spine MRI showed a CM1 with diffuse white matter hyperintensities (WMH) on T2-weighted imaging and narrowed brain sulci without hydrocephalus. Lumbar puncture revealed extremely high opening pressure. Detailed blood examination and other radiographical imaging studies denied the presence of tumor, collagen disease, encephalitis and other entities. Head magnetic resonance venography and angiography demonstrated severe transverse sinus stenosis on both sides. Foramen magnum decompression was performed to alleviate the ICH by restoration of cerebrospinal fluid (CSF) stagnation at the foramen magnum with successful outcome. The patient completely recovered from preoperative symptoms immediately after surgery. The diffuse WMH and narrowing brain sulci have been resolving. The most feasible explanation for this complicated pathophysiology was ICH induced by CM1 led to transverse sinus collapse, resulting in diffuse WMH as a result of venous hypertension. This case report is the first illustration of successful surgical treatment of CM1 with diffuse brain edema with a focus on venous sinus assessment. PMID- 29018654 TI - Double Crush of L5 Spinal Nerve Root due to L4/5 Lateral Recess Stenosis and Bony Spur Formation of Lumbosacral Transitional Vertebra Pseudoarticulation: A Case Report and Review. AB - We present a case of double-crushed L5 nerve root symptoms caused by inside and outside of the spinal canal with spur formation of the lumbosacral transitional vertebra (LSTV). A 78-year-old man presented with 7-year history of moderate paresis of his toe and left leg pain when walking. Magnetic resonance imaging (MRI) revealed spinal stenosis at the L3/4 and 4/5 spinal levels and he underwent wide fenestration of both levels. Leg pain disappeared and 6-min walk distance (6MWD) improved after surgery, however, the numbness in his toes increased and 6MWD decreased 9 months after surgery. Repeated MR and 3D multiplanar reconstructed computed tomography (CT) images showed extraforaminal impingement of the L5 root by bony spur of the left LSTV. He underwent second decompression surgery of the L5/S via the left sided Wiltse approach, resulting in the improvement of his symptoms. The impingement of L5 spinal nerve root between the transverse process of the fifth lumbar vertebra and the sacral ala is a rare entity of the pathology called "far-out syndrome (FOS)". Especially, the bony spur formation secondary to the anomalous articulation of the LSTV (LSPA) has not been reported. These articulations could be due to severe disc degeneration, following closer distance and contact between the transverse process and the sacral ala. To our knowledge, this is the first report describing a case with this pathology and may be considered in cases of failed back surgery syndromes (FBSS) of the L5 root symptoms. PMID- 29018655 TI - The Involvement of Sensory-motor Networks in Reflex Seizure. AB - Reflex seizures are epileptic events triggered by specific external stimuli, or less commonly, internal mental stimuli. Understanding the characteristics of reflex seizures is important to elucidate the mechanisms underlying network abnormalities in epileptic conditions. This report details a patient with medically intractable reflex seizures provoked by sensory stimuli to the patient's right foot. Single-photon emission computed tomography (SPECT) during the seizure induced by sensory stimulation showed hyperperfusion in broad sensory motor networks (dorsal column-medial lemniscus pathway, left thalamus, bilateral postcentral gyri and posterior parietal cortices, left supplementary motor area (SMA), and left paracentral lobule) and left caudateputamen. The irritative zones and ictal onset zone were localized to the left medial frontoparietal (SMA, anterior and middle cingulate gyrus, and paracentral lobule) and lateral posterior parietal cortices, as evidenced by amelioration of reflex seizures following intracranial electroencephalography and surgical resection of these areas. The neuroradiological and electrophysiological findings in our case study illustrate that the mechanism of reflex seizures may be associated with hyperexcitability of the broad sensory-motor networks, including the basal ganglia. Disconnection of these networks is necessary to treat reflex seizures. PMID- 29018656 TI - How to manage traumatic optic neuropathy? PMID- 29018658 TI - Neuroimaging and clinical features of patients with optic nerve hypoplasia in Taiwan. AB - PURPOSE: To investigate the clinical and neuroradiographic features of Chinese patients with optic nerve hypoplasia (ONH). METHODS: This was a retrospective case series study. The medical records and magnetic resonance imaging (MRI) studies of patients diagnosed with ONH from September 2001 to December 2013 in the neuro-ophthalmology clinic of Taipei Veterans General Hospital were reviewed. RESULTS: A total of eight eyes of five patients with ONH were enrolled in this study (1 male, 4 females). The mean age at diagnosis was 14.5 +/- 12.0 years (range 0.25-30 years). Ocular examination revealed approximately half of the eyes had tortuous retinal vessels. In MRI studies, all patients had midline brain abnormalities including ectopic posterior pituitary gland (60%), agenesis of septum pellucidum (20%), and Rathke's cleft cyst (20%). Two patients had endocrinopathies-one suffered from hypopituitarism and the other had hyperprolactinemia. Both of them showed ocular findings of tortuous retinal vessels. CONCLUSION: A high prevalence of midline brain abnormalities was noted in ONH patients of Chinese ethnicity. The presence of tortuous retinal vessels in patients with a midline brain anomaly may indicate the occurrence of endocrinopathy. PMID- 29018657 TI - Major challenges in vitreoretinal surgery. AB - Since the first vitrectomy surgery was used for treatment of vitreoretinal diseases, surgical techniques and instrumentation have been rapidly improved in the past decades. However, there are complicated vitreoretinal diseases that cannot be successfully treated, even with state-of-the-art surgeries. The outcomes of some complicated cases are still poor due to different reasons and debates still remain in some areas regarding what are the best treatments. There is still a lack of full understanding on many complicated vitreoretinal diseases, such as the molecular basis of proliferative vitreoretinopathy (PVR), the role of scleral buckling (SB) in the management of rhegmatogenous retinal detachment (RRD), the optimal surgical consideration for pediatric RD, and the possibility of surgical management for various retinal degenerations and congenital retinal anomalies. This review discusses the current understandings of some complicated vitreoretinal diseases. PMID- 29018659 TI - Experience of scleritis and episcleritis at a tertiary center in Southern Taiwan. AB - PURPOSE: The purpose of this study was to review the clinical experiences of scleritis and episcleritis in Southern Taiwanese people during a 7-year period. METHODS: The charts of 89 patients (representing 101 eyes) who had visited our clinic from January 2003 to July 2010 were retrospectively reviewed. They were diagnosed as having episcleritis or scleritis. The medical charts, slit lamp photographs, and laboratory data were reviewed. Age, gender, laterality, previous surgery history, systemic diseases, follow-up duration, and ocular complications were collected. The patients were classified as having clinically suspected noninfectious scleritis (CSNIS), clinically suspected infectious scleritis (CSIS), and episcleritis for analysis. RESULTS: In the series of 89 patients (i.e., 101 eyes), 31 (34.8%; 32 eyes) patients had scleritis and 58 (65.2%; 69 eyes) patients had episcleritis. Episcleritis and scleritis occurred slightly more frequently in women than in men. In the 31 patients (32 eyes) diagnosed with scleritis, 12 (38.7%) patients had CSIS and 19 (61.3%) patients had CSNIS. Patients with scleritis were older than patients with episcleritis (p < 0.001). Previous pterygium excision was associated with CSIS and necrotizing scleritis. CONCLUSION: Scleritis occurred in a more elderly population. It was more frequently associated with ocular complications, compared to episcleritis. Both CSNIS and CSIS were associated with a history of pterygium excisional surgery. Our series of patients had a high occurrence of necrotizing scleritis. All cases of necrotizing scleritis were associated with a history of previous ocular surgery. PMID- 29018660 TI - A lack of ongoing diabetes is an important factor in preserving eyes from late or suboptimally treated endogenous endophthalmitis secondary to Klebsiella pneumoniae liver abscess. AB - PURPOSE: The purpose of this study is to identify the possible factors for preserving the eyes after late or suboptimally treated endogenous endophthalmitis secondary to Klebsiella pneumoniae (KP) liver abscess. METHODS: A retrospective chart review was conducted for patients admitted with KP liver abscess from January 1991 to June 2012. RESULTS: Six hundred and ninety-three patients with KP liver abscess were recorded, in which endophthalmitis was identified in 53 cases (65 eyes, 8.29%). Diabetes was significantly associated with the development of endophthalmitis (p = 0.014). Eleven eyes received their last ocular treatment >=10 days and final vision >= counting fingers, and were defined as benign type KP endophthalmitis. The absence of diabetes was the only consistent candidate factor for benign type KP endophthalmitis. CONCLUSION: A lack of ongoing diabetes is an important factor in preserving eyes with late or suboptimally treated endogenous endophthalmitis second to KP liver abscess. PMID- 29018661 TI - Comparison of surgical outcomes after phacotrabeculectomy in primary angle closure glaucoma versus primary open-angle glaucoma. AB - PURPOSE: To compare postoperative outcomes and assess factors associated with intraocular pressure (IOP) reduction after phacotrabeculectomy in patients with primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG). METHODS: This is a retrospective study of patients who underwent phacotrabeculectomy between 2010 and 2013. Factors including age, gender, visual field (VF), the number of glaucoma medications used, biometric changes, IOP, and surgical success rates were compared between groups. RESULTS: There were 27 PACG and 34 POAG patients. The PACG group had a greater mean IOP reduction after phacotrabeculectomy compared to the POAG group (5.5 +/- 7.9 mmHg versus 2.0 +/- 4.2 mmHg; p = 0.03). However, the final mean IOP was similar between the two groups (PACG: 12.2 +/- 4.8 mmHg, POAG: 12.3 +/- 3.1 mmHg; p = 0.92). Phacotrabeculectomy resulted in a mean decrease in axial length (AL) of 0.16 +/- 0.15 mm in PACG and 0.16 +/- 0.11 mm in POAG (p = 0.96), and an increase in anterior chamber depth (ACD) of 1.41 +/- 0.91 mm in PACG, and 0.87 +/- 0.86 mm in POAG (p = 0.04). At 2 years follow-up, the cumulative success rate of phacotrabeculectomy was 74% in PACG and 62% in POAG. Multivariate analysis found that early glaucoma stage, greater postoperative increase in ACD, and high preoperative IOP were factors associated with greater IOP reduction. CONCLUSION: Postoperative success rates and mean IOP on the final visit after phacotrabeculectomy were similar between the PACG and POAG groups. Factors associated with IOP reduction were greater postoperative increase in ACD, and high preoperative IOP. PMID- 29018662 TI - Spectral-domain optical coherence tomography findings of subinternal limiting membrane hemorrhage in the macula before and after Nd:YAG laser treatment. AB - We reported the spectral-domain optical coherence tomography (SD-OCT) findings of a subinternal limiting membrane hemorrhage in the macula in one patient with Valsalva retinopathy and in one patient with macroaneurysm before and after neodymium-doped yttrium aluminum garnet (Nd:YAG) laser membranotomy. Within 1 week, the Nd:YAG laser treatment facilitated rapid absorption of the hemorrhage in both patients. Spectral-domain optical coherence tomography was helpful before laser treatment to evaluate the exact location of the blood and after laser treatment to confirm the amount and location of residual hemorrhage, which was hard to confirm by only indirect ophthalmoscopy. PMID- 29018663 TI - Severe ocular complications following facial calcium hydroxylapatite injections: Two case reports. AB - Dermal soft-tissue augmentation using a filler is a technique widely used for facial cosmetic enhancement. However, potential complications following facial cosmetic injections have heightened the possibility of iatrogenic visual loss. We report two cases of severe ocular complications after nasal cosmetic enhancement. Both cases had poor visual outcomes in spite of emergency management. The second patient is a rare case with bilateral anterior ischemic optic neuropathy after dermal soft-tissue augmentation. The visual outcome was correlated with the location and the extent of the arterial embolization. Unfortunately, there is still no standard treatment protocol for vision-threatening complications. Clinicians should always keep in mind that embolic arterial occlusion may occur after augmentation. PMID- 29018666 TI - Glaucomatocyclitic crisis and glaucomatous optic neuropathy. PMID- 29018664 TI - Bilateral optic neuritis related to chronic inflammatory demyelinating polyneuropathy. AB - Chronic inflammatory demyelinating polyneuropathy (CIDP) is a condition that mainly affects the peripheral nervous system; however, the central nervous system has also been involved in rare cases. Herein, we describe the case of a 33-year old man with CIDP who presented with progressively blurred vision and pain with eye movement in both eyes for 1 month. Ocular examination revealed reduced visual acuities of 0.15 (oculus unitas or OU) and unremarkable fundi (OU). Furthermore, bitemporal visual field defects and prolonged visually evoked potentials were evident. Brain magnetic resonance imaging revealed nothing remarkable along the optic nerve and chiasm. These findings were compatible with the diagnosis of bilateral optic neuritis. The patient's symptoms and visual acuity improved after 5 days of intravenous (IV) corticosteroid pulse therapy, which was subsequently replaced by oral prednisolone therapy with a tapering schedule. The patient's visual acuity returned to 1.0 (OU) 6 months after treatment. However, bilateral optic neuritis recurred in 7 months while the patient was on oral prednisolone and azathioprine. IV corticosteroid pulse therapy was subsequently reinitiated and the patient's visual acuity returned gradually to 1.0 (OU). Bilateral optic neuritis is a rare manifestation of CIDP. It responded well to IV corticosteroid therapy in our case. PMID- 29018665 TI - Management of hypotony after glaucoma filtering surgery. AB - A 39-year-old male with open angle glaucoma in both eyes visited our clinic. The intraocular pressure (IOP) of both eyes fluctuated between 15 mmHg and 25 mmHg. The best corrected visual acuity (BCVA) was 20/20 in the right eye and 20/100 in the left eye. He underwent trabeculectomy with an adjunctive agent (mitomycin C; concentration, 0.2 mg/mL) smoothly on the right eye. After the removal of releasable sutures, the filtering bleb was prominent over the superior limbus for 3 consecutive clock hours with an IOP of about 4-5 mmHg. The Seidel test result was negative, and the anterior chamber depth was moderate to deep. The BCVA of the right eye decreased to 20/100, and optical coherence tomography revealed macular edema. We injected sodium hyaluronate (Healon, Abbott Medical Optics, Santa Ana, CA, USA) into the anterior chamber 2 months after the operation, and repeated the same procedure 4 days later. After each injection, the IOP spiked up to 50 mmHg, and an intravenous infusion of mannitol was required. Sodium hyaluronate was found migrating into the bleb on post-injection day 1. Then we decided to revise the bleb by suturing the scleral flap at two sides. The IOP of the right eye returned to 10 mmHg 4 days after the revision surgery. The BCVA of the right eye recovered to 20/20 6 months after the revision. Optical coherence tomography also showed recovery from macular edema. One IOP-lowering agent (1% brinzolamide ophthalmic suspension) was required for IOP control after bleb revision. Early revision of the scleral flap may resolve hypotony and associated serious complications. PMID- 29018667 TI - Detecting optic nerve head deformation and retinal nerve fiber layer thinning in glaucoma progression. AB - The application of digital imaging technologies including confocal scanning laser ophthalmoscopy (CSLO), optical coherence tomography (OCT), and scanning laser polarimetry (SLP) has significantly improved the detection of optic nerve head (ONH) deformation and progressive retinal nerve fiber layer (RNFL) thinning for assessment of glaucoma progression. Algorithms for change analysis such as topographic change analysis and guided progression analysis perform event analysis of serial ONH surface height topology maps and RNFL thickness/RNFL retardance maps, respectively, providing a topographical display of the location of significant change. With spectral-domain OCT, it is feasible to delineate and measure the lamina cribrosa surface depth in addition to ONH surface depth and RNFL thickness. Growing evidence from experimental and clinical studies indicates that ONH and lamina cribrosa deformation can be observed prior to detectable RNFL thinning and functional loss in glaucoma. These findings lend support to the notion that upon detection of ONH/lamina cribrosa deformation, a time window for therapeutic intervention for better outcomes may exist. The ONH and the lamina cribrosa are therefore important targets for monitoring glaucoma progression. This review summarizes the latest findings comparing the performance of OCT, CSLO, and SLP for detection of progressive ONH and RNFL damages in glaucoma patients and the clinical implication and limitations of studying the morphological alteration of the ONH, lamina cribrosa, and RNFL in the assessment of glaucoma progression. PMID- 29018669 TI - Low vision aid-A ray of hope for irreversible visual loss in the pediatric age group. AB - PURPOSE: To analyze visual acuity (VA) improvement, causes of low vision (LV), and quality of life (QOL) following the use of low vision aids (LVAs) in children with LV. METHODS: A prospective analysis was conducted on children with LV aged between 4 years and 18 years between March 2013 and October 2013. Children were recruited from both urban schools and rural schools. LVAs were tried for visual improvement, and improved VA was noted. All children were trained to use the aid and followed up monthly for 3 consecutive months for VA improvement; QOL through a questionnaire was analyzed after the use of LVAs. RESULTS: A total of 74 children (148 eyes; 50% male; mean age, 11.8 +/- 3.2 years) were analyzed, where 34 children were recruited from rural areas and 40 from urban schools. After LVA use, 101 (68.24%) eyes of 59 (79.72%) children improved for distance with telescope and 81 (54.72%) eyes of 51 (68.91%) children improved for near with magnifiers. LV due to retinal problems, optic atrophy, congenital anomalies, and amblyopia drastically reduced after use of LVA. A statistically significantly higher proportion of children had either "excellent" or "good" QOL, and a significantly lower proportion of children had either "not satisfactory" or "poor" QOL after the use of LVA (p < 0.0001). CONCLUSION: LVA is essential and effective in improving VA and QOL in children with LV. PMID- 29018668 TI - Complex genetics of familial exudative vitreoretinopathy and related pediatric retinal detachments. AB - Familial exudative vitreoretinopathy (FEVR) is a hereditary vitreoretinal disorder that can cause various types of retinal detachments. The abnormalities in eyes with FEVR are caused by poor vascularization in the peripheral retina. The genetics of FEVR is highly heterogeneous, and mutations in the genes for Wnt signaling and a transcription factor have been reported to be responsible for FEVR. These factors have been shown to be the regulators of the pathophysiological pathways of retinal vascular development. Studies conducted to identify the causative genes of FEVR have uncovered a diverse and complex relationship between FEVR and other diseases; for example, Norrie disease, a Mendelian-inherited disease; retinopathy of prematurity, a multifactorial genetic disease; and Coats disease, a nongenetic disease, associated with pediatric retinal detachments. PMID- 29018670 TI - Short break-up time type dry eye has potential ocular surface abnormalities. AB - PURPOSE: To describe a case series in which corneal fluorescein staining (CFS) development occurred in short break-up time (s-BUT) dry eyes after a short period during prolonged opening of the eye. METHODS: The study was designed as a clinical case series. Ocular surface evaluations were performed on 13 individuals with s-BUT dry eye. Tear function examinations included Schirmer's test and BUT evaluation. RESULTS: In all 13 cases, the BUT was short, but the tear quantity was not so bad. In all cases, CFS developed following a single eye opening, and the staining was observed at sites that showed as dark spots. In several cases, the CFS disappeared later. CONCLUSION: In this study, we demonstrated that CFS could develop following a single eye opening. Based on our findings, CFS is a dynamic phenomenon rather than a stable indicator of ocular surface abnormalities. Moreover, s-BUT dry eye has the potential to show ocular surface abnormalities. PMID- 29018671 TI - Distribution of corneal and ocular spherical aberrations in eyes with cataract in the Taiwanese population. AB - PURPOSE: To investigate the distribution of corneal and ocular spherical aberrations (SAs) in eyes with cataract in the Taiwanese population. METHODS: Corneal and ocular SAs were measured in the central 6-mm optical zone using wavefront aberrometry. Axial length (AL) and keratometry (K) were also evaluated in each eye. RESULTS: A total of 413 eyes in 234 patients were analyzed. The mean age of the patients was 66.8 +/- 10.64 years. The mean AL and K values were 24.32 mm and 44.08 D, respectively. The mean corneal SA was 0.307 +/- 0.135 MUm and ocular SA was -0.042 +/- 0.487 MUm. Ocular and corneal SAs were significantly correlated (r2 = 0.04, p < 0.001). Corneal and ocular SAs were not significantly correlated with K (p = 0.096 and p = 0.634, respectively), but were significantly correlated with AL (p < 0.001). Multilinear regression showed that corneal SAs and age were the dependent variables that predicted ocular SAs (r2 = 0.143, F = 13.65, p < 0.01), especially in patients who were aged > 50 years, for whom a strongly significant positive correlation was found (r2 = 0.102, F = 11.10, p < 0.001). CONCLUSION: Corneal and ocular SAs varied among cataract patients and correlated with AL. After 50 years of age, ocular SAs increased significantly because of an increase in internal (lenticular) SAs. Corneal SAs in Taiwanese patients were larger than those in Japanese patients and similar to those in Chinese and Malaysian populations. Preoperative measurement of wavefront aberrations is necessary to select which aspherical intraocular lenses are most suitable for achieving better postoperative visual quality. PMID- 29018673 TI - Development of macular holes in diabetic retinopathy with fibrovascular proliferation: Report of four cases. AB - There are yet no reports in the literature describing the mechanism of macular hole (MH) formation associated with fibrovascular proliferation in proliferative diabetic retinopathy. We report four cases of MHs in diabetic retinopathy with fibrovascular proliferation; formation of MHs were studied using sequential pre MH optical coherence tomography (OCT). In Case 1, initial OCT revealed tractional schisis and cysts with fovea detachment. An MH with bowl-shaped detachment was noted within 6 weeks. In Case 2, initial OCT revealed thickened posterior hyaloid membrane with vitreomacular traction. Five and a half years later, OCT showed MH formation with possible vitreomacular separation. Some epiretinal membrane was also noted in the macula area. In Case 3, initial OCT revealed tractional retinal elevation from the superonasal area to the fovea with macular thinning. An MH with detachment developed 7 weeks later. In Case 4, initial OCT revealed macula involved retinal detachment with traction. An MH was noted 4 weeks later. The analysis of sequential OCT findings in these four cases suggests that strong vitreoretinal adhesion and traction of fibrovascular proliferation may induce an MH without going through the same evolutionary phases as those characteristic of idiopathic MHs. PMID- 29018672 TI - Clinical characteristics and antivascular endothelial growth factor effect of choroidal neovascularization in younger patients in Taiwan. AB - BACKGROUND/PURPOSE: The purpose of this study is to share experiences diagnosing and treating choroidal neovascularization (CNV) in young patients (age <= 50 years) at our hospital. METHODS: The study reviewed retrospective data of patients (<= 50 years old) with CNV who received antivascular endothelial growth factor treatment (anti-VEGF) between January 2007 and August 2012 at Shin Kong Wu Ho-Su Memorial Hospital. We recorded the total number of injections, types of drugs, preoperative and final best-corrected visual acuity (BCVA), central retinal thickness (CRT) in optical coherence tomography (OCT), and total follow up times, and then used two-tailed paired t tests to compare mean changes in BCVA and CRT on OCT. RESULTS: The study enrolled 59 patients <= 50 years of age with CNV diagnosed in 67 eyes. The mean age was 36.9 +/- 10.0 years (range, 8-50 years). Twenty-one patients were male and 38 patients were female. Forty-two CNV lesions were subfoveal, 19 were juxtafoveal, and five were extrafoveal. The mean total follow-up time was 18.5 +/- 19.9 months (range, 0.5-71 months). Pathologic myopia was the most common cause of CNV in this study (47.8%), followed by punctate inner choroidopathy (17.9%), idiopathic CNV (16.4%), polypoidal choroidal vasculopathy (13.4%), angioid streaks (3.0%), and choroidal rupture (1.5%). After anti-VEGF treatment, the mean BCVA improved from 0.69 +/- 0.61 to 0.42 +/- 0.59 (p < 0.05). CRT decreased from 257.5 +/- 48.2 to 210.3 +/- 35.7 (p < 0.05). The mean number of injections was 1.9 +/- 1.6 (range, 1-9). CONCLUSION: In this study we found that pathologic myopia, punctate inner choroidopathy, and idiopathic and polypoidal choroidal vasculopathy comprised the four most common causes of CNV in patients <= 50 years of age in Taiwan. We also revealed that anti-VEGF treatment is highly effective in the treatment of CNV in this age group. PMID- 29018674 TI - Detection of the progression of retinal nerve fiber layer loss by optical coherence tomography in a patient with glaucomatocyclitic crisis. AB - A 30-year-old man presented with glaucomatocyclitic crisis, also known as Posner Schlossman syndrome, and acute intraocular pressure elevation. Changes in the longitudinal retinal nerve fiber layer (RNFL) and the cup-to-disc (C/D) ratio of the optic disc were detected by Stratus optical coherence tomography (OCT). The average RNFL thickness in the affected eye was greater than that in the unaffected eye on Day 3 (132.99 MUm, C/D ratio: 0.24 vs. 105 MUm, C/D ratio: 0.26). However, the RNFL thickness continued to decrease and the C/D ratio progressively increased in the affected eye over 12 months (60 MUm, C/D ratio: 0.67), although the intraocular pressure was controlled at <21 mmHg during that period. Glaucomatous visual field defects were also found. A progressive decrease in the thickness of the RNFL was demonstrated by Stratus optical coherence tomography following an elevation in the acute intraocular pressure in the patient. Prompt treatment and longitudinal monitoring are necessary to prevent and detect glaucomatous damage. PMID- 29018675 TI - Bilateral inferior oblique muscle paresis after posterior subtenon injection of triamcinolone acetonide. AB - Posterior subtenon injections of steroidal drugs are commonly used to treat various chorioretinal inflammatory diseases. Subsequent strabismus is rare, but it is associated with severe visual disturbance when present. We report a case of simultaneous bilateral inferior oblique muscle paresis in a 60-year-old man who developed it after receiving intravitreal injections of bevacizumab and posterior subtenon injections of triamcinolone acetonide for the treatment of diabetic macular edema. The patient complained of excessive pain during the injections, which were performed at the 6 o'clock position in both eyes. According to the literature, inferior oblique muscle paresis after posterior subtenon injections is rare. This complication may be prevented by proper selection of the injection site and paying attention to any unusual patient complaints during the procedure. PMID- 29018676 TI - Stevens-Johnson syndrome following cataract surgery. AB - A case of Stevens-Johnson syndrome in a healthy 58-year-old woman who underwent cataract surgery under topical anesthesia is reported. General skin erosions developed 2 hours after surgery. The patient's family doctor diagnosed that she was allergic to seafood. One month later, she underwent phacoemul-sification surgery in the other eye. After surgery, she developed Stevens-Johnson syndrome with general skin lesions, erythema nodosa, genital mucosa erosion, oral ulcers, gastritis, and conjunctiva edema. The symptoms subsided 2 weeks later after immunotherapy. Although nonpreserved anesthesia (2% lidocaine) has seldom been reported to cause allergic reactions via the intravenous or the intramuscular route, it is possible that an intracameral injection of 0.2% lidocaine during cataract surgery can induce Stevens-Johnson syndrome. Careful evaluation of the patient's history and proper treatment were recommended to prevent additional complications. PMID- 29018677 TI - Ocular adnexal lymphoma: Five case reports and a literature review. AB - This article reports the clinical course and treatment of ocular adnexal lymphoma based on a retrospective review of five cases with a histologically approved ocular adnexal lymphoma at Kaohsiung Veterans General Hospital over 10 years. Extranodal B-cell lymphoma in the orbit, lacrimal gland, eyelid, or conjunctiva was found in these patients. Four of them were female, and they were aged 45-64 years. All patients were also consulted with hematologists for possible systemic involvement and therapeutic plan. The patient with retrobulbar and orbital apex involvement received systemic chemotherapy. The patient with lacrimal gland involvement experienced tumor recurrence after local excision, and therefore received adjuvant radiotherapy. The remaining three patients had localized lymphoma on the eyelid or bulbar conjunctiva, and they all showed no recurrence after surgical excision. The incidence of ocular adnexal lymphoma has risen worldwide over the last few decades. Although most cases are confined to ocular adnexal, some may also be associated with disseminated lymphoma. Accurate diagnosis and staging is mandatory for appropriate treatment. Generally speaking, localized and low-grade ocular adnexal lymphoma involved eyelid or conjunctiva seem to have good outcome after surgical excision only. Systemic chemotherapy should be considered in patients with advanced disease or systemic manifestations, and radiotherapy also offers a good choice for lacrimal gland lymphoma. PMID- 29018678 TI - Latest advances in the treatment of corneal diseases. PMID- 29018679 TI - Rod metabolic demand drives progression in retinopathies. AB - Various factors are thought to cause the development and progression of disease in macular degeneration, diabetic retinopathy, and retinitis pigmentosa. Some of the deleterious processes include oxidative stress, hypoxia, metabolic derangement, genetics, and vasculopathy. In this review, we present a unified theory for the pathophysiology of several retinopathies based on the unique and intense metabolism of rod photoreceptors. PMID- 29018680 TI - Autologous serum therapy in recalcitrant laser-assisted in situ keratomileusis induced neurotrophic epitheliopathy. AB - BACKGROUND/PURPOSE: To evaluate the efficacy of autologous serum eye drops for patients with recalcitrant laser-assisted in situ keratomileusis (LASIK)-induced neurotrophic epitheliopathy (LINE) unresponsive to conventional treatment, and to determine the possible predisposing risk factors of these patients. METHODS: We enrolled 10 consecutive patients (20 eyes) undergoing femtosecond-assisted myopic LASIK surgery presenting with recalcitrant LINE for > 1 year. Another 340 patients (713 eyes) receiving femtosecond-assisted myopic LASIK without recalcitrant LINE were set as controls. Possible risk factors associated with recalcitrant LINE were investigated. Twenty percent autologous serum treatment was prescribed to 20 eyes. The efficacy of autologous serum was assessed with ocular surface conditions, tear function, and the change of best-corrected visual acuity. RESULTS: Age older than 30 years [odds ratio (OR) = 7.74; 95% confidence interval (CI), 1.74-34.50], flap thickness < 110 MUm (OR = 3.47; 95% CI, 1.22 9.73), and a flap diameter < 8.5 mm (OR = 5.38; 95% CI, 1.95-14.85) pose higher risks in femtosecond laser-assisted myopic LASIK. All eyes (100%) achieved remission after autologous serum treatment. The visual acuity before treatment was 0.49 +/- 0.41 in LogMAR, and the visual acuity after treatment was 0.14 +/- 0.22 in LogMAR. Time to achieve remission was 8.26 +/- 11.87 weeks. Mean relapse free survival after discontinuing autologous serum was 47 weeks. CONCLUSION: Risk factors of recalcitrant LINE in femtosecond laser-assisted myopic LASIK were identified as older age, a thinner flap (<110 MUm), and a small flap diameter (<8.5 mm). Autologous serum eye drops can effectively improve corneal surface conditions and postoperative visual acuity. PMID- 29018681 TI - Suture pull-through insertion of graft donor in Descemet stripping automated endothelial keratoplasty: Results of 4-year follow-up. AB - PURPOSE: To report our clinical experience and 4-year follow-up results of Descemet stripping automated endothelial keratoplasty (DSAEK) with the suture pull-through insertion technique. METHODS: This is a retrospective study of 195 eyes in which a posterior lamellar keratoplasty was performed between 2007 and 2011. The insertion of a folded donor lenticule was performed with a double-armed 10-0 suture using a straight transchamber needle and half-circle needle. Endothelial cell density was measured annually up to 4 years after the surgery, and cell loss was calculated based on the median preoperative donor endothelial cell density. Postoperative complications, primary graft failure, pupillary block, and dislocation of the donor tissue were assessed. RESULTS: All patients underwent uncomplicated DSAEK. Data were available for 195 eyes (100%) at 1 year, 186 eyes (95.3%) at 2 years, 176 eyes (90.2%) at 3 years, and 160 eyes (82%) at 4 years. Median preop-erative donor endothelial cell density was 2688 cells/mm2 [interquartile range (IQR) 207.5 cells/mm2], which decreased by 27% at 1 year (1956 cells/mm2, IQR 264.8 cells/mm2), 31% at 2 years (1855 cells/mm2, IQR 320.5 cells/mm2), 35% at 3 years (1756.5 cells/mm2, IQR 306.5 cells/mm2), and 36% at 4 years (1709.5 cells/mm2, IQR 288,0 cells/mm2). Nine patients (4.6%) had a dislocation of donor tissue; all were successfully reattached with a second air injection. Only three eyes (1.5%) developed graft failure. Pupillary block was present in 15 eyes (7.7%). CONCLUSION: DSAEK with suture pull-through insertion of donor graft represents a simplified and safe technique that has endothelial cell loss comparable with other techniques and low rates of intraoperative and postoperative complications. PMID- 29018682 TI - Comparison of trabeculectomy with Ex-PRESS shunt implantation in primary-open angle-glaucoma patients: A retrospective study. AB - PURPOSE: To investigate the efficacy of intraocular pressure (IOP) control and medication use over time after trabeculectomy (TRBC) and Ex-PRESS shunt implantation in primary-open-angle-glaucoma (POAG) patients. DESIGN: Retrospective case series. PATIENTS AND METHODS: A total of 33 unilateral POAG patients were enrolled, and 17 patients received traditional TRBC and 16 patients received Ex-PRESS device implantation. Data on IOP, reduction of antiglaucoma medication, and major complications were collected and analyzed after 12 months of follow up. RESULTS: After 12 months of follow up, both groups showed good IOP control. The mean preoperative IOP decreased from 38.5 (+/-6.9) to 18.2 (+/-11) mmHg after TRBC, and from 38.5 (+/-9.1) to 19.53 (+/-12.36) mmHg after Ex-PRESS implantation (both p < 0.05). The mean number of antiglaucoma medications prescribed at the last follow up decreased from 3.2 (+/-0.5) preoperatively to 1.2 (+/-1.4) after TRBC versus 3.3 (+/-0.7) preoperatively to 1 (+/-0.9) after Ex PRESS implantation (both p < 0.05). Complete success rate (defined as no medication after surgery with IOP >5 and <18 mmHg) and qualified success rate (defined as with or without medication after surgery with IOP >5 and <18 mmHg) were similar (47% vs. 43% and 76.47% vs. 75%) between the two groups without statistical difference (p > 0.05). However, postoperative hypotony rate was more frequent after Ex-PRESS (37.5%) than after TRBC (17.64%). DISCUSSION: TRBC and Ex PRESS implantation provided similar IOP control and reduction of postoperative medication with low incidence of postoperative complications at intermediate-term follow up. However, the Ex-PRESS implantation device may last longer but with extra costs. It is up to the surgeon to decide which procedure to use according to the patient's situation and economic circumstances. PMID- 29018683 TI - Changes of intraocular pressure and refractive status in children following cycloplegic refraction with 1% cyclopentolate and 1% tropicamide. AB - PURPOSE: To evaluate the effect of cycloplegic mydriasis with 1% cyclopentolate and 1% tropicamide on the intraocular pressure (IOP) and refractive status of children for cycloplegic refraction and compare the [OP and refractive changes between hyperopic and myopic groups. METHODS: This study was designed as a retrospective cohort study. Ninety one children received cycloplegic mydriasis. The IOP was measured with a noncontact tonometer before cycloplegic administration. One drop of 1% cyclopentolate was administered, which was followed by two drops of 1% tropicamide at an interval of 10 minutes. The IOP was then measured 30 minutes after tropicamide instillation. Autorefraction was assessed with an autorefractometer before and after cycloplegic mydriasis. RESULTS: The mean age of the 44 girls and 47 boys was 7.3 +/- 2.4 years. The mean precycloplegic IOP was 14.45 +/- 2.47 mmHg and the mean postcycloplegic IOP was 15.06 +/- 3.08 mmHg in all eyes. A significant difference was noted in the IOP change (p = 0.033). In the 39 hyperopic eyes, the mean precycloplegic IOP and postcycloplegic IOP were 14.54 +/- 2.53 mmHg and 15.69 +/- 3.35 mmHg, respectively. There was a significant difference in the IOP change (p = 0.008). In the 52 myopic eyes, the mean precycloplegic IOP and postcycloplegic IOP were 14.38 +/- 2.44 mmHg and 14.61 +/- 2.80 mmHg, respectively (p = 0.72). There was no significant IOP change in the myopic group. The postcycloplegic IOP was significantly different between the hyperopic and the myopic groups (p = 0.021). Three eyes (3.3%) had an IOP elevation more than 5.0 mmHg after cycloplegic mydriasis. Postcycloplegic refraction showed significant hyperopic shifts in all eyes (p < 0.0001). CONCLUSION: Cycloplegic mydriasis with 1% cyclopentolate and 1% tropicamide caused IOP changes in preschool and school-aged children with hyperopia. Ophthalmologists should be very cautious in monitoring IOP changes for children with cycloplegic medication use. PMID- 29018684 TI - Rescue effects of intravitreal aflibercept in the treatment of neovascular age related macular degeneration. AB - We report the rescue results of intravitreal aflibercept in patients with treatment-resistant neovascular age-related macular degeneration (AMD). We retrospectively analyzed eyes with neovascular AMD resistant to posterior subtenon triamcinolone, intravitreal ranibizumab, and/or bevacizumab treatment in a tertiary medical center in middle Taiwan between December 2013 and October 2014. We then switched treatment to 2.0 mg aflibercept. The main outcome included changes in best-corrected visual acuity and central foveal thickness measured by optical coherence tomography during monthly follow-up. There were 204 patients with neovascular AMD, and the percentage of refractory cases was 1.96% (4 of 204 cases). Our study included five eyes of four patients that were resistant to multiple treatments and subsequently switched to aflibercept. The mean age was 71.25 +/- 11.09 years (range 57-83 years). Treatments were on average 6.6 times previously. Upon switching to aflibercept treatment, the average central foveal thickness on optical coherence tomography was 505.6 +/- 270.86 MUm (range 150-815 MUm). After aflibercept treatment, the average central foveal thickness was 192 +/- 51.76 MUm (range 149-274 MUm). All patients showed anatomic improvement, and 80% of the eyes (4 of 5 eyes) had improved best-corrected visual acuity and 20% of the eyes (1 of 5 eyes) had stable visual acuity. Patients tolerated the treatment well without serious adverse events. This short-term study showed that intravitreal aflibercept was effective and safe in treatment-resistant neovascular AMD cases. However, analysis of more cases and long-term follow-ups are mandatory. PMID- 29018685 TI - Easy-to-prepare autologous platelet-rich plasma in the treatment of refractory corneal ulcers. AB - As platelets are rich in growth factors for tissue regeneration, autologous platelet-rich plasma (PRP) has been used to treat some refractory corneal defects. Although PRP is effective, the cost of its preparation is very high. This article presents three cases of refractory corneal ulcer under the prescription of autologous PRP. The autologous PRP used in these cases was easily prepared in the blood bank laboratory. In this paper, we collected three patients with refractory corneal ulcer who were unresponsive to conventional treatment. The patients presented with neurotrophic ulcer, exposure corneal ulcer, and limbal deciency with corneal ulcer after hepatitic keratitis. Although we easily prepared autologous PRP eye drops using simple laboratory centrifugation, this preparation still had a clinical effect on corneal defect. The mean intervention time was 24 +/- 6.9 days. The case with exposure corneal ulcer had significant wound healing and the other two cases felt subjective symptom relief. There were some clinical improvements of refractory corneal ulcers in our three cases. We present the clinical results of three cases and report an easy procedure for the preparation of autologous PRP. Autologous PRP prepared simply in the laboratory, it may be an alternative option for treating refractory corneal ulcer. PMID- 29018686 TI - Occult Descemet's membrane detachment after phacoemulsification surgery mimicking pseudophakic bullous keratopathy. AB - We herein report two cases of occult Descemet's membrane detachment (DMD) after phacoemulsification surgery, which initially presented as persistent corneal edema and had been considered as pseudophakic bullous keratopathy. The patients were thus scheduled to receive corneal transplantation. For Case 1, DMD was incidentally detected by slit-lamp examination 2 months postoperatively, only when part of the cornea became clearer. For Case 2, anterior segment optical coherence tomography demonstrated extensive DMD, which had lasted 5 months after the operation. DMDs in both patients had been successfully attached after descemetopexy. Occult DMD should be suspected in patients with persistent severe corneal edema after phacoemulsification surgery. Corneal transplantation may be avoided by timely diagnosis and treatment of DMD. PMID- 29018687 TI - Ocular post-transplant lymphoproliferative disorder. AB - We report a case of an iris tumor with muttonfat keratic precipitates in a young patient after liver transplantation surgery. A 6yearold girl underwent liver transplantation for congenital biliary atresia and was subsequently immunosuppressed with oral cyclosporine. We examined her 5 years after transplantation because of a "white nodule in her left eye," which had been detected by her father one day before visiting our clinic. Ophthalmological examinations revealed symmetric visual acuity and normal afferent papillary reflex. Slitlamp examination revealed a depigmented iris nodule approximately3 * 2 mm with muttonfat keratic precipitates in the anterior chamber. Fundus examination was unremarkable, and computed tomography (CT) of the head, neck, and abdomen showed normal findings. Based on the suspicion of post-transplant lymphoproliferative disorder (PTLD), therapy was initiated, which included tapering cyclosporine and topical mydriatics. After 2.5 months, the lesion resolved and no more muttonfat keratic precipitates were identified in the anterior chamber. In this PTLD case, the patient presented with an iris nodule and muttonfat keratic precipitates, and the ocular PTLD presentation resolved spontaneously after tapering cyclosporine. PMID- 29018688 TI - Retinal detachment with a break at pars plicata associated with congenital malformation of the lens-zonule-ciliary body complex. AB - Retinal detachment with a break at the pars plicata associated with congenital malformation of lens-zonule-ciliary body complex is rare; most reports are of young Japanese male patients with atopic dermatitis. The present case report is the first to describe the condition in a Chinese patient with no atopic dermatitis or trauma history. A 22-year-old male presented with blurred vision in the left eye for 4 months. Fundus examination revealed shallow lower temporal retinal detachment. Further examination with scleral indentation under maximal pupil dilatation identified a break at the far periphery beyond the ora serrata and pars plana. Gonioscopy revealed a pars plicata break at the nonpigmented ciliary epithelium associated with congenital ciliary process hypoplasia and subtle lens defect at the same meridian. The retina was successfully reattached after segmental scleral buckling, cryopexy, and laser photocoagulation. PMID- 29018689 TI - Choose the right treatment for the right patients. PMID- 29018690 TI - When is macular edema not macular edema? An update on macular telangiectasia type 2. AB - Macular telangiectasia type 2 (Mac Tel 2) also known as idiopathic perifoveal telangiectasia and juxtafoveolar retinal telangiectasis type 2A is an enigmatic disease of unknown etiology. It manifests both neurodegenerative and vasculopathic characteristics. It manifests itself during the fifth or sixth decades of life. Clinical characteristics include minimally dilated parafoveal capillaries with loss of the retinal transparency in the area involved, absence of lipid exudation, right-angled retinal venules, superficial retinal refractile deposits, hyperplasia of the retinal pigment epithelium (RPE), foveal atrophy and subretinal neovascularization (SRNV). Optical coherence tomography (OCT) images typically demonstrate outer retinal abnormalities and the presence of intra retinal hyporeflective spaces that are usually not related with retinal thickening or fluorescein leakage. The typical fluorescein angiographic finding is a deep intraretinal hyperfluorescent staining in the temporal parafoveal area. With time this fluorescein hyperfluorescence involves the whole parafoveal area but does not extend to the center of the fovea. Long-term prognosis for central vision is poor, because of the development of SRNV or macular atrophy. Its pathogenesis remains unclear but multi-modality imaging with fluorescein angiography, spectral domain OCT, adaptive optics, confocal blue reflectance, short wave fundus autofluorescence, OCT angiography, and clinicopathological correlations implicate Muller cells. Currently there is no known treatment for this condition. PMID- 29018692 TI - Refractive error, visual acuity, and corneal-curvature changes in high and low myopes with orthokeratology treatment: A Malaysian study. AB - BACKGROUND/PURPOSE: The effect of orthokeratology (OK) on low myopia is well known, but there are a few reports on its effect on high myopia. In this study, the parametric changes in high and low myopia as results of wearing OK lenses for a period of 6 months have been analyzed. METHODS: Records of schoolchildren (age 7-17 years) undergoing OK treatment from an optometry clinic were retrospectively reviewed. Data involving refractive errors, uncorrected visual acuity, and corneal curvatures at baseline and after 1 day, 1 week, 1 month, 3 months, and 6 months of OK treatment from 25 patients who fulfilled the inclusion criteria were examined. For the analysis, the participants were arbitrarily divided into two groups comprising high myopia (< -6.00 D) and low to moderate myopia (from -1.00 D to -6.00 D). RESULTS: Significant reductions of refractive error, improvement in visual acuity, and corneal-curvature flattening were found in all participants after 6 months of OK lens wear compared to the baseline. No significant changes were found in corneal toricity in both high and low to moderate myopic groups. Almost all of these occurred after one night of lens wear in both the high- and low-myopia groups. CONCLUSION: The OK lens wear significantly reduced the refractive error and corneal curvature that results in the improvement in visual acuity in both high- and low-myopia groups, and the reduction seemed to occur nearly at the same time despite the difference in initial myopic power. High myopes with refractive power up to -8.25 D would benefit significantly from OK lenses. PMID- 29018691 TI - Immunosuppressive therapy for eye diseases: Effectiveness, safety, side effects and their prevention. AB - Ocular inflammation is a significant cause of ocular morbidity and visual impairment. Topical, periocular, intraocular, and systemic corticosteroids are highly effective for treating appropriate forms of ocular inflammation. However, their use may be constrained by local and/or systemic side effects, especially if long-term therapy is required. As a result, immunosuppressive agents increasingly have been used to manage ocular inflammation alongside or in place of corticosteroids. The four categories of agents used today are antimetabolites [primarily methotrexate, mycophenolate mofetil (MMF), and azathioprine]; T-cell inhibitors (usually cyclosporine, less often tacrolimus or sirolimus); alkylating agents (cyclophos-phamide and chlorambucil); and biologic agents [tumor necrosis factor (TNF) inhibitors, lymphocyte inhibitors, and interleukin inhibitors]. The primary goals of immunosuppressive therapy are (1) to control inflammation when corticosteroids fail to do so; (2) to prevent corticosteroid-induced toxicity when the necessary corticosteroid dosage exceeds the desired or safe level (corticosteroid sparing); and (3) to treat specific high-risk uveitis syndromes known to respond poorly to corticosteroids alone. Growing evidence shows the effectiveness of immunosuppressive drugs in achieving these goals, as well as improved visual function, prevention of ocular complications, and in some cases even disease remission. However, these agents also have side effects, which must be considered in each patient's management. In this report, we summarize the effectiveness and safety of immunosuppressive drug therapy utilized in the treatment of ocular inflammatory diseases. PMID- 29018694 TI - Prevalence of general binocular dysfunctions among rural schoolchildren in South Korea. AB - BACKGROUND/PURPOSE: To assess the prevalence of nonstrabismic accommodative and vergence dysfunctions among primary schoolchildren in Hampyeong, a rural area of South Korea. METHODS: Five hundred and eighty-nine primary schoolchildren, 8-13 years old, were each given a thorough eye examination, including binocular-vision testing, near point of convergence, horizontal phoria measurement by von Graefe, and negative and positive vergence amplitudes with prism bar, to determine any form of accommodative or vergence dysfunctions. RESULTS: Of the 589 participants examined, 168 (28.5%) primary schoolchildren presented some form of nonstrabismic accommodative or vergence dysfunctions. The prevalence of accommodative dysfunctions and vergence dysfunctions was 13.2% and 9%, respectively. Convergence insufficiency (10.3%) was more prevalent than convergence excess (1.9%), and accommodative insufficiency (5.3%) was more prevalent than accommodative excess (1.2%). CONCLUSION: This study suggests that nonstrabismic accommodative and vergence dysfunctions are prevalent in the rural area of South Korean primary schoolchildren, and convergence insufficiency was the most prevalent. PMID- 29018693 TI - Axial length and subfoveal choroidal thickness in individuals with age-related macular degeneration. AB - PURPOSE: To compare axial length (AL) and subfoveal choroidal thickness (SFCT) between individuals with age-related macular degeneration (AMD) and controls with no lesions. METHODS: This was a case-control study. In total, 853 eyes of 484 patients (>65 years), including 397 eyes at various AMD stages and 456 eyes with no fundus lesions (controls) were recruited. Using color fundus photography, eyes were grouped according to AMD degree. AL was automatically measured using IOL Master and SFCT was manually measured by two independent observers. The associations among age, AL, SFCT, and each AMD grade were analyzed. RESULTS: Out of 853 eyes, 456 had no lesions, 217 contained drusen only, 134 had early AMD, and 46 had late AMD. The eyes with late AMD were older (p = 0.007) and had longer AL (p >= 0.001) and thinner SFCT (p < 0.001) compared with groups of no fundus lesions, drusen only, and early AMD. SFCT in eyes with late AMD decreased by 19.20 MUm (p = 0.049), 24.78 MUm (p = 0.029), and 15.56 MUm (p = 0.162) compared with groups of no fundus lesions, drusen only, and early AMD, respectively. SFCT decreased by 14.18 MUm/mm increase in AL (p < 0.001). The odds ratio (OR) for late AMD by longer AL (>=25 mm) and thinner SFCT (<240 MUm) was 4.54 (chi2 = 9.36; p = 0.002) and 4.86 (chi2 = 17.62; p < 0.001), respectively, and was 9.57 (chi2 = 18.07; p < 0.001) when both AL >= 25 >=m and SFCT < 240 MUm. CONCLUSION: Eyes with late AMD have distinct reduced SFCT and elongated AL. Eyes with thinner SFCT and longer AL showed high ORs for late AMD and even higher ORs when both factors were simultaneously present. These findings illustrate the crucial pathophysiological role of these two important ocular fac tors and arouse our attention to patients with both characteristics, especially in Asian countries where the prevalence of myopia are disturbingly high. PMID- 29018695 TI - Negative Mantoux test in a patient with definite pulmonary and ocular tuberculosis. AB - The case is reported of a patient with pulmonary and ocular tuberculosis presenting with blurred vision in both eyes. A 27-year-old well-nourished male nursing-home resident with a previous history of traumatic intracerebral hemorrhage was brought to the ophthalmological clinic due to progressively blurred vision. His best-corrected visual acuity was 20/400 in the right eye with only light perception in the left eye. Fundus examinations revealed retinal segmental periphlebitis and hemorrhagic retinitis in the right eye and dense vitreous hemorrhage in the left eye. The Mantoux test was negative; however, the results of an interferon gamma release assay were positive. Ocular tuberculosis was suspected. Although he had never had any respiratory symptoms, his chest radiograph and computed tomography scan showed a multiple centrilobular glandular and ground-glass appearance with air-space consoli dations and atelectasis in both lower lobes. Pulmonary tuberculosis was confirmed by a positive acid-fast stain of a bronchial alveolar lavage sample. A GEN-PROBE amplified Mycobacterium tuberculosis direct test of the vitreous fluids was also positive. Ocular tuberculosis was confirmed. After treatment for tuberculosis and vitrectomies, his final best-corrected visual acuity improved to 20/30 in the right eye and 20/200 in the left eye. Ocular tuberculosis is rarely reported as the primary presentation of systemic tuberculosis in young patients. A negative Mantoux test may lead to misdiagnosis and delayed treatment. Doctors should become more familiar with the manifestations of systemic tuberculosis and use advanced diagnostic tools in cases of clinical suspicion. PMID- 29018696 TI - Bilateral uveitis associated with concurrent administration of rifabutin and nelfinavir. AB - Rifabutin-associated uveitis has been recognized as a dosage-dependent side effect. Previous studies have reported that clarithromycin or fluconazole may elevate concentrations of rifabutin through inhibition of metabolism through the cytochrome P-450 pathway. Nelfinavir is a protease inhibitor widely used in the treatment of human immunodeficiency virus (HIV) infection. The interactions between protease inhibitors and rifabutin have not been reported in clinical practice. Therefore, we present a case of bilateral uveitis associated with coadministration of rifabutin and nelfinavir. Uveitis did not subside until discontinuation of rifabutin. To our knowledge, this is the first report of uveitis with concurrent administration of rifabutin and nelfinavir. Our finding reminds us that rifabutin dosage should be reduced when it is administered with protease inhibitors. PMID- 29018697 TI - Varicella zoster virus-associated neuroretinitis. AB - Varicella zoster virus-associated neuroretinitis is rare. We report a patient who presented with blurred vision of the left eye and extraocular movement pain. A fundoscopic examination revealed disc edema, hyperemia, and macular edema. The impression was neuroretinitis. Intravenous methylprednisolone pulse therapy was administered. However, visual recovery was incomplete with optical coherence tomography (OCT) imaging showing photoreceptor layer disruption. The laboratory data were rechecked and demonstrated a high varicella zoster virus immunoglobulin G titer. Varicella zoster virus-associated neuroretinitis was suspected and oral acyclovir was prescribed. His visual acuity improved to 0.9 after 2 weeks of treatment, and OCT showed photoreceptor layer restoration. Spectrum-domain OCT provides useful information when evaluating the disease course of neuroretinitis. PMID- 29018698 TI - Rapid anterior capsular phimosis after cataract surgery in a patient with chronic angle closure glaucoma. AB - We report a case of complete occlusion of capsulorrhexis opening in a patient with chronic angle closure glaucoma with fixed-dilated pupil in the following 2 weeks after an uneventful cataract surgery. The capsulorrhexis diameter was intended to make between 5.0 mm and 5.5 mm, to prevent photophobia afterward. There was no evidence of zonular weakness on preoperative examination or during the surgery. Nd:YAG anterior capsulotomy was performed for capsular phimosis and to enlarge capsulorrhexis. The patient regained her visual acuity 3 days after laser treatment, and no pseudophakodonesis, intraocular lens decentration, and re phimosis were noted at the 3-month follow-up. PMID- 29018699 TI - Ocular decompression retinopathy after laser iridotomy in a patient with acute angle closure. AB - A 65-year-old female developed elevated intraocular pressure (IOP) with angle closure in the right eye. The fundus examination revealed vitreo-retinal hemorrhage that had occurred after neodymium-doped yttrium aluminum garnet (Nd:YAG) laser iridotomy. The retinal hemorrhage resolved spontaneously. This is a rare complication that occurs when the IOP is lowered rapidly. Ocular decompression retinopathy (ODR) was identified. We reviewed several cases of ODR that were treated by various interventions. We also discuss the possible pathogenesis, prognosis, and treatment strategy. PMID- 29018700 TI - Sub-internal limiting membrane hemorrhage treated with intravitreal tissue plasminogen activator followed by octafluoropropane gas injection. AB - Sub-internal limiting membrane (sub-ILM) hemorrhage is a relatively rare disease which is associated with different etiologies and often leads to loss of visual acuity. We report two cases of sub-ILM hemorrhage, both confirmed by optical coherence tomography (OCT) and treated with an intravitreal injection of tissue plasminogen activator (tPA) followed by an octafluoropropane (C3F8) pneumopexy and a strict postoperative prone positioning. The hemorrhage was totally resolved and complete visual recovery was achieved in both cases. We found tPA hemolysis with C3F8 pneumopexy to be a safe and effective method for treating sub-ILM hemorrhage. PMID- 29018701 TI - The use of macular optical coherence tomography thickness in the diagnosis and follow-up of glaucoma. PMID- 29018702 TI - Macular thickness analysis for glaucoma diagnosis and management. AB - There is increasing literature regarding the role of macular imaging by optical coherence tomography (OCT) in glaucoma care. Spectral domain OCT (SD-OCT) has allowed for high resolution imaging of the total macula and macular segments. With the use of asymmetry analysis, macular thickness is a measurement that can be used for the detection and progression of glaucoma. Some artifacts seen on retinal nerve fiber layer (rNFL) scans may be overcome by macular SD-OCT imaging. Also, nonglaucomatous optic neuropathies may be more easily identified on macular thickness plots than rNFL scans. Special populations, such as children or myopes, may also have improved glaucoma surveillance using macular SD-OCT. In this review we explore the advantages and pitfalls of macular OCT in glaucoma care and offer an approach on how to use macular thickness scans in clinical practice. PMID- 29018703 TI - Retinal complications associated with congenital optic disc anomalies determined by swept source optical coherence tomography. AB - Optical coherence tomography has evolved over the past 2 decades to be an important ancillary method to evaluate diseases of the anterior and posterior segments of the eye. The more recent development of swept-source optical coherence tomography (SS-OCT) with a wavelength-tunable laser centered at 1050 nm and deeper imaging depth of 2.6 mm has enabled clinicians to evaluate congenital optic disc anomalies including optic disc pits, optic disc colobomas, and morning glory syndrome in more detail. The SS-OCT findings of the posterior precortical vitreous pocket, Cloquet's canal, lamina cribrosa that is torn from the peripapillary sclera, and the retrobulbar subarachnoid space immediately posterior to the highly reflective tissue lining the bottom of the excavation are presented. In addition, abnormal communications between the vitreous cavity and the subretinal and subarachnoid spaces in eyes with congenital optic disc anomalies are also reviewed. The retinal complications associated with congenital optic disc anomalies are treated by vitreous surgery, silicone oil tamponade, and peripapillary laser photocoagulation or scleral buckling. However, the surgical outcomes are limited and not entirely satisfactory. Analyses by SS-OCT of congenital optic disc anomalies should make the treatment correspond better with the pathological findings. PMID- 29018704 TI - Comparison of glaucoma diagnostic accuracy of macular ganglion cell complex thickness based on nonhighly myopic and highly myopic normative database. AB - BACKGROUND/PURPOSE: To evaluate and compare the diagnostic discriminative ability for detecting glaucoma in highly myopic eyes from a normative database of macular ganglion cell complex (mGCC) thickness based on nonhighly myopic and highly myopic normal eyes. METHODS: Forty-nine eyes of 49 participants with high myopia (axial length >= 26.0 mm) were enrolled. Spectral-domain optical coherence tomography scans were done using RS-3000, and the mGCC thickness/significance maps within a 9-mm diameter circle were generated using built-in software. We compared the difference of sensitivity, specificity, and diagnostic accuracy between the nonhighly myopic database and the highly myopic database for differentiating the early glaucomatous eyes from the nonglaucomatous eyes. RESULTS: This study enrolled 15 normal eyes and 34 eyes with glaucoma. The mean mGCC thickness of the glaucoma group was significantly less than that of the normal group (p < 0.001). Sensitivity was 96.3%, and the specificity was 50.0% when using the nonhighly myopic normative database. When the highly myopic normative database was used, the sensitivity was 88.9%, and the specificity was 90.0%. The false positive rate was significantly lower when using the highly myopic normative database (p < 0.05). CONCLUSION: The evaluations of glaucoma in eyes with high myopia using a nonhighly myopic normative database may lead to a frequent misdiagnosis. When evaluating glaucoma in high myopic eyes, the mGCC thickness determined by the long axial length high myopic normative database should be applied. PMID- 29018705 TI - Correlation of spectral domain optical coherence tomography findings in sub silicone oil foveal depression space and visual outcome in eyes undergoing silicone oil removal. AB - BACKGROUND/PURPOSE: To describe small hyper-reflective spherical bodies in sub silicone oil-foveal depression (SSO-FD) space using spectral domain optical coherence tomography (SD-OCT) and its effect on visual outcomes in eyes undergoing silicone oil removal (SOR). METHODS: This was a prospective interventional comparative study comprising 42 eyes undergoing SOR with clear media. All patients underwent detailed clinical examination and SD-OCT scan of fovea pre-operatively and at 30 days and 90 days postoperatively. Patients were divided into Group A (n = 21) and Group B (n = 21) depending on presence or absence, respectively, of small hyper-reflective spherical bodies in the SSO-FD space in preoperative scans. The findings between SD-OCT and best-corrected visual acuity were correlated and analyzed. RESULTS: The mean age of patients was 41.9 years (range, 23-60 years) in Group A and 45.6 years (range, 23-60 years) in Group B. Twenty-one eyes showed small hyper-reflective spherical bodies on SD-OCT imaging. These were thought to represent emulsified silicone oil globules trapped in the potential space created by silicone oil meniscus and foveal pit, which is the SSO-FD space. These bodies were absent in all post SOR scans of Group A and Group B. Group A had significant visual improvement (p = 0.0001) after SOR with clearance of these hyper-reflective bodies as compared to Group B(p = 0.356). CONCLUSION: We conclude that these small hyper-reflective spherical bodies in the SSO-FD space were most likely emulsified silicone oil globules and correlated with significant visual improvement with their clearance after silicone oil removal. PMID- 29018706 TI - Etiology of orbital fractures at a level I trauma center in a large metropolitan city. AB - BACKGROUND/PURPOSE: Orbital fractures are a common facial fracture managed by multiple surgical specialties. Methods: A retrospective review of the electronic medical records of patients (age, 18-85 years) presenting to Northwestern Memorial Hospital and Northwestern Medical Faculty Foundation in Chicago, IL, USA with International Classification of Diseases, Ninth Revision codes for facial fractures or CPT (Current Procedural Terminology) codes for orbital fracture repair. RESULTS: A review of the electronic medical records identified 504 individual incidents of orbital fractures with available imaging for review. The most common location for an orbital fracture was a floor fracture (48.0%) followed by a medial wall fracture (25.2%). Left-sided orbital fractures were statistically significantly more common than right-sided orbital fractures (99% confidence interval). Orbital fractures were more prevalent in younger age groups. The mean patient age was 39.3 years. The most common cause of all orbital fractures was assault followed by falls. However, falls were the most common cause of orbital fractures in women and in patients aged 50 years and older. Evaluation by an ophthalmologist occurred in 62.8% of orbital fracture patients, and evaluation by a team comprising the facial trauma service (Otolaryngology, Plastic Surgery, and Oral and Maxillofacial Surgery) occurred in 81.9% of orbital fracture patients. CONCLUSION: Assault was the largest cause of all orbital fractures, and occurred most commonly in young males. Assaulted patients were more likely to have left-sided fractures compared to nonassaulted patients. In patients aged 50 years and older, falls were the most common cause of orbital fractures. PMID- 29018707 TI - Association of refractive error with vision-related quality of life in junior high school students. AB - BACKGROUND/PURPOSE: To evaluate the relationship between refractive error and vision-related quality of life in 16-year-old students in Taiwan. METHODS: A cross-sectional study was designed for 16-year junior-high-school students in Taiwan. Myopia was defined as a spherical refractive error (SRE) < -0.50 D, hyperopia as SRE > +1.0 D, and emmetropia as SRE -0.5-+1.0 D in the better eye. Vision-related quality of life was assessed using the Taiwan Chinese version of the 25-Item National Eye Institute Visual Functioning Questionnaire. RESULTS: Of the 688 participants, 466 (68%) had myopia and 22 (3%) had hyperopia. In logistic regression models adjusted for gender, parents' education, family income, and parental refractive error, myopia was an independent risk factor of poorer vision related quality of life for both near vision (odds ratio 1.73, 95% confidence interval 1.22-2.45) and distance vision (odds ratio 3.11, 95% confidence interval 2.23-4.35). Hyperopia was not associated with near- or distance-vision difficulty. CONCLUSION: In this study population, myopia was associated with difficulties in near and distance vision compared to emmetropia. Further studies are needed to confirm our findings in other populations. PMID- 29018708 TI - Spontaneous suprachoroidal hemorrhage: Case report and review of the literature. AB - We present the clinical course, management, and final outcome of spontaneous suprachoroidal hemorrhage (SSCH) in an age-related macular degeneration (AMD) patient-a 64-year-old male receiving antiplatelet therapy who developed SSCH during the Valsalva maneuver. In addition to our case study, we discuss the results of a systemic review of the literature and reference lists of retrieved studies published from January 2001 to December 2013. Among a total of 31 patients (32 eyes), acute secondary glaucoma was a complication in 87.5% of the cases, and over half of the cases (20 eyes, 62.5%) received surgery. Twenty cases (64.5%) were characterized by systemic hypertension (HTN), followed by cardiovascular or cerebral vascular disease in 17 cases (54.8%). The Valsalva maneuver was performed in five cases (16.1%) prior to the episode. Twenty-three cases (74.2%) had abnormal hemostasis, including use of anticoagulants or thrombolytic agents (18 cases), chronic renal failure (CRF, 5 cases), and blood dyscrasia (3 cases). AMD was the most common (17 eyes of 16 patients, 53.1%) ocular disease. Visual acuity was classified as hand motion (HM) or worse in 20 eyes (of 28 eyes, 71.4%) at initial presentation and in 24 eyes (of 30 eyes, 80%) upon final examination. Anticoagulated patients with AMD should be informed of the risk of intraocular hemorrhage. Medical therapy usually fails in the treatment of glaucoma. Surgical intervention provides an option for the purpose of pain relief. Even so, the final visual prognosis is usually poor. PMID- 29018709 TI - Primary diffuse large B cell lymphoma of the lacrimal sac. AB - A 47-year-old man presented with epiphora and a mass around the lacrimal sac in his left eye. Imaging studies revealed a favorable diagnosis of sinusitis-related mucocele. However, the pathological study of the excised tumor demonstrated a diffuse large B cell lymphoma. The patient was consequently referred to the oncology department for further management. Malignant lymphomas of the lacrimal sac are rare and they can mimic mucoceles. As such, they should be included in the list of differential diagnoses for lacrimal sac mass. PMID- 29018710 TI - A rare manifestation of neuro-ophthalmic sarcoidosis: A case report. AB - PURPOSE: Anterior uveitis is the most common ocular manifestation of sarcoidosis. Ocular involvement affects approximately 30-60% of patients with systemic sarcoidosis; however, optic disc edema is a rare event. We report a patient who presented with a rare case of sarcoidosis with neuro-ophthalmic manifestations. CASE REPORT: A 22-year-old man was referred to our clinic with the primary complaint of a visual field defect over the temporal side of his right eye of 2 months duration. He did not have a history of systemic disease. At the first ophthalmic examination, the visual acuity, intraocular pressure, and slit lamp examination were normal. The fundus examination revealed bilateral optic disc edema. He was initially suspected of having a choroidal lesion between the disc and fovea of the right eye. To evaluate the possible lesion, the patient underwent brain magnetic resonance imaging (MRI), chest radiography, and chest computed tomography (CT). There were no abnormalities on the brain MRI, but the chest radiographs and CT images revealed bilateral mediastinal and hilar lymphadenomegaly. Histopathologic evaluation of an ultrasound-guided lymph node biopsy confirmed the diagnosis of sarcoidosis. CONCLUSION: Neuro-ophthalmic manifestations of sarcoidosis are rare but may be the only presenting sign of an otherwise occult disease. A high clinical suspicion for sarcoidosis and its inclusion as a differential diagnosis are key to establishing the diagnosis and proper treatment. PMID- 29018711 TI - Eradicating trachoma: The experience in Taiwan. PMID- 29018712 TI - Trachoma in Asia-A disappearing scourge. AB - Trachoma is an ancient blinding eye disease. With improvements in hygiene and living conditions and development of targeted strategies by the World Health Organization, trachoma is being progressively eliminated. Great progress is being seen in Asian countries, many of which are becoming trachoma free. PMID- 29018713 TI - Impact of swept source optical coherence tomography on ophthalmology. AB - Swept source optical coherence tomography (SS-OCT) was introduced in clinical practice in 2012. Because of its deeper penetration and faster acquisition time, SS-OCT has the ability to visualize choroid, vitreous, and retinal structures behind dense preretinal hemorrhages. Swept source optical coherence tomography has positively influenced and hugely contributed to the research of the vitreous body. It is the first ophthalmic diagnostic technology to demonstrate the entire structure of the posterior precortical vitreous pocket (PPVP) in vivo. The roles of the PPVP in physiological posterior vitreous detachment and vitreoretinal interface disorders have now been elucidated. The presence of a connecting channel between the PPVP and Cloquet's canal suggests that the aqueous humor drains into the premacular space. Deeper penetration of SS-OCT has made it possible to view the choroid. It also has an important role in central serous chorioretinopathy and uveitis. We have also been able to treat Harada disease by monitoring the choroidal thickness by SS-OCT. PMID- 29018714 TI - Iris-claw versus posterior chamber fixation intraocular lens implantation in pediatric traumatic cataract. AB - AIM: This study aims to compare visual outcomes and complications of iris-fixated (claw) intraocular lens (IFIOL) implantation with those of posterior chamber intraocular lens (PCIOL) implantation in children with traumatic cataract. SETTINGS AND DESIGN: Retrospective observational clinical audit. MATERIALS AND METHODS: A total of 50 pediatric traumatic cataract cases that underwent lens removal and IOL implantation (IFIOL or PCIOL) with or without corneal or corneoscleral tear repair between January 2009 and December 2013 were analyzed. After meeting the eligibility criteria, their pre- and postoperative visual outcomes and complication rates were recorded. Data were analyzed descriptively. RESULTS: Out of 50 children, IFIOL and PCIOL implantations were performed in one eye of each of 25 children. Their mean age was 11 +/- 4 years (range 4-18 years). Primary (cataract removal with lens implantation) and secondary (corneal tear repair followed by cataract removal with lens implantation) procedures were performed in 19 (76%) and six (24%) children in the IFIOL group and in 21 (84%) and four (16%) children in the PCIOL group, respectively. There was an improvement in best corrected visual acuity postimplantation in both the IFIOL and the PCIOL group, and no significant difference in the logarithm of the minimum angle of resolution of best corrected visual acuity was observed between the two groups over 36 months. Only three eyes in the IFIOL group developed complications: one eye developed secondary glaucoma, one disenclavation of IOL haptic, and one cystoid macular edema. CONCLUSION: Both IFIOL and PCIOL implantations have good visual outcomes and minimal postoperative complications; therefore, IFIOL can be used as an alternative to PCIOL in children with traumatic cataract with inadequate capsular support. PMID- 29018715 TI - Reducing intraocular-pressure spike after intravitreal-bevacizumab injection with ocular decompression using a sterile cotton swab soaked in proparacaine 0.5%: A quasi-experimental study. AB - BACKGROUND/PURPOSE: The study was conducted to determine the effect of preinjection ocular decompression by a cotton swab soaked in local anesthetic on the immediate postinjection rise in intraocular pressure (IOP) after intravitreal bevacizumab (IVB). METHODS: A nonrandomized, quasi-experimental interventional study was conducted at Al-Shifa Trust Eye Hospital, Pakistan, from August 1, 2013 to July 31, 2014. One hundred (n = 100) patients receiving 0.05-mL IVB injection for the first time were assigned to two preinjection anesthetic methods: one with ocular decompression using a sterile cotton swab soaked in proparacaine 0.5%, and the other without ocular decompression using proparacaine 0.5% eyedrops. The IOP was recorded in the eye receiving IVB at three time intervals: Time 1 (preinjection), Time 2 (immediately after injection), and Time 3 (30 minutes after injection). RESULTS: There was a significant difference in the mean IOP change (between Time 1 and Time 2) for the group injected with ocular decompression [M = 1.00, standard deviation (SD) = 1.47] and the group injected without ocular decompression (M = 5.00, SD = 2.38; t (68) = 9.761, p < 0.001). There was also a significant difference in the mean IOP change (between Time 1 and Time 3) for the group injected with ocular decompression (M = 0.428, SD = 1.58) and the group injected without ocular decompression (M = 4.318, SD = 3.34; t (58) = 7.111, p < 0.001). CONCLUSION: Patients receiving IVB injections with ocular-decompression soaking in proparacaine 0.5% experience significantly lower postinjection IOP spike, and that too for a considerably shorter duration as compared to those receiving IVB without ocular decompression. PMID- 29018716 TI - Retinoblastoma in Mongolia: Clinical characteristics and survival from 1987 to 2014. AB - BACKGROUND/PURPOSE: This study aims to describe the clinical characteristics and treatment outcome of retinoblastoma in Mongolian children. METHODS: Data of all children diagnosed with retinoblastoma at the National Center for Maternal and Child Health of Mongolia from 1987 to January 2014 were reviewed retrospectively. The ICRB classification was used. Survival characteristics of the cohort were analyzed. RESULTS: Retinoblastoma was diagnosed in 79 eyes of 64 cases during the study period. Median age of diagnosis was 24.5 +/- 15.8 months. There were no differences in sex ratio, and 15 cases (23%) were bilateral. Forty-three (67%) patients were from rural areas. The more frequent clinical presentations were leukocoria in 50 (78%) patients, strabismus in 24 (38%) patients, and glaucoma in 21 (33%) patients. Sixty-one (95%) patients were diagnosed with Classification D or worse when presented to us. Due to late diagnosis in the majority of cases, unilateral and bilateral enucleations were performed in 48 (61%) eyes and 24 (30%) eyes, respectively; exenteration was done in three (4%) eyes. Fifty-two (81%) patients received chemotherapy and 13 (8.3%) patients underwent external beam radiation after enucleation. At the time of last follow-up, 52 (81%) patients were alive, five (8%) patients were dead, and seven (11%) patients had lost to follow-up or unknown vital status. The mean follow-up period was 121.5 months (range, 12-360 months). In five cases with immunohistochemistry analysis in the eye specimen, neuron-specific enolase-, Ki-67 protein-, and B-cell lymphoma 2-positive cells were found in all five (100%) cases and Rb protein was detected in three (60%) cases. CONCLUSION: Retinoblastoma in Mongolia is frequently diagnosed at late stages and has a poor outcome. These data show the importance of early pediatric eye examinations and better treatment of retino blastoma in children younger than 3 years in Mongolia. PMID- 29018717 TI - Clinical characters and treatments of retinal vasoproliferative tumors. AB - Retinal vasoproliferative tumors (VPT) are uncommon benign vascular tumors. They mostly occur in healthy patients, but may be associated with other chorioretinal diseases. Here we report four patients with VPT at a referral center from 2006 to 2015. Three patients denied any past history and one had a history of retinal detachment surgery. VPT-related complications included epiretinal membrane (ERM) (n = 2), cystoids macular edema (n = 1), and lamellar hole combined with dense cataract, rigid anterior capsule and vitreous opacity (n = 1). Treatments for VPT and comorbidities included vitrectomy (VT) and membrane peeling with tumor resection (n = 2), a combined treatment of photodynamic therapy (PDT) and intravitreal injection (IVI) of anti-vascular endothelial growth factor (anti VEGF) (n = 2). Tumor shrinkage was achieved in both patients treated with PDT and IVI of anti-VEGF injection. The other two patients with ERM were successfully treated with VT and tumor resection. Visual acuity improved at least two lines in three patients, and one patient had decreased vision due to cataract formation after VT. Pathology of the resected tumor in one case revealed massive gliosis with positive stain of vascular endothelial cells and glial fibrillary acidic protein stain. Yet the peeled membrane was acellular. Possible beneficial treatments for VPT and comorbidities include PDT combined with IVI of anti-VEGF, or VT and membrane peeling with tumor resection. PMID- 29018718 TI - Ipsilateral rotational autokeratoplasty for central corneal scar: An alternative to penetrating keratoplasty. AB - A 49-year-old woman was referred to our clinic for penetrating keratoplasty. A central corneal scar involving the visual axis with high irregular astigmatism up to 15.8 D was noted. Because the scar was located mostly in the central cornea, ipsilateral rotational autokeratoplasty was suggested and performed. An 8.5-mm punch was used to trephine the cornea eccentrically and superiorly intentionally. The trephined corneal button was then rotated 150 degrees to relocate the scar to the temporal upper part of the cornea. The graft was soon clear with a normal curvature centrally. The astigmatism was -0.5 D, the visual acuity was 20/40, and the endothelial cell loss was 2.66% 2 years after the operation. A rotational autograft carries no risk of immunological complications such as rejection associated with allografts and has lower endothelial cell loss rate. It can be an effective alternative to standard penetrating keratoplasty for some patients with central corneal scars. PMID- 29018719 TI - Needle decompression in a patient with vision-threatening orbital emphysema. AB - Orbital emphysema is a condition resulting from trapping of air in loose subcutaneous or orbital tissues from the paranasal sinuses. This condition commonly seen in patients with a history of periorbital trauma or surgery, especially following sneezing or nose blowing. It usually has a benign and self limited course. However, the entrapped orbital air can cause a substantial increase in pressure with restricted ocular motility or vascular compromise and become severe enough to cause visual impairment. We herein present the case of a patient who developed severe orbital emphysema after blunt trauma followed by sneezing and was successfully treated with needle decompression of intraorbital air. Emergency needle decompression resulted in an improvement in vision and intraocular pressure. PMID- 29018720 TI - Deep vein thrombosis due to continuous prone positioning after retinal detachment surgery. AB - In March 2014, a 56-year-old woman without previous underlying disease underwent encircling scleral buckling, 20-gauge pars plana vitrectomy, cryotherapy around a retinal tear, and gas-fluid exchange with 15% perfluoropropane flush for upper rhegmatogenous retinal detachment of the left eye. However, she developed progressive left leg swelling, pain, warmth, and redness, associated with difficulty in elevating her left leg after continuously maintaining a prone head position when either lying down or sitting for 2 days. When she arrived at the emergency room, she had an elevated D-dimer level. After undergoing Doppler ultrasound imaging, she was diagnosed as having deep vein thrombosis of the left leg. She received anticoagulation therapy with enoxaparin and warfarin overlapping for 7 days. The edema, pain, and paresthesia of her left leg were relieved. However, because of the risk of bleeding with anti-coagulation drug usage, the patient needed to be monitored for 6 months. Prone positioning for gas tamponade is important for anatomic and functional success in retinal detachment surgery; however, timely walking and rest between periods of continuous prone positioning should be encouraged to prevent deep vein thrombosis and other impaired circulation-related complications. PMID- 29018721 TI - Methicillin-resistant Staphylococcus aureus buckle infection complicated by endophthalmitis and presumed choroidal abscess in a patient with ulcerative colitis. AB - This patient presented with excessive pain, lid swelling, erythema, heat and limitations of extraocular movement (OD) nine days after a scleral buckle (SB) and pneumopexy surgery. Complicated buckle infection with endophthalmitis was impressed. Bacterial culture yielded methicillin-resistant Staphylococcus aureus. A choroidal abscess was identified 1 week after the episode. Complete visual recovery from hand motion to 20/30 (OD) was achieved with buckle removal, subconjunctival and intravitreal antibiotics. Endophthalmitis and choroidal abscess formation after SB surgery is extremely rare. Host factors including ulcerative colitis may play a role in causing the severe buckle infection of this patient. PMID- 29018722 TI - This issue at a glance. PMID- 29018723 TI - Restrictive problems related to strabismus surgery. AB - Strabismus surgery may be responsible for some restrictions in ocular motility that may cause new problems after surgery. Most of the time these restrictions present as a complex motility problem after surgery that requires further treatment. There may be various reasons that cause motility restriction following strabismus surgery. Those are excessive shortening or inadvertent capture of extraocular muscles, transposition procedures and, the most challenging problem, postoperative scar tissue-adhesion formation. In this review the potential reasons for postoperative restrictive problems, preventive measures and finally the treatment options for such problems are overviewed. PMID- 29018724 TI - Cold medicine-related Stevens-Johnson syndrome/toxic epidermal necrolysis with severe ocular complications-phenotypes and genetic predispositions. AB - Stevens-Johnson syndrome (SJS) is an acute inflammatory vesiculobullous reaction of the skin and mucosa, such as the ocular surface, oral cavity, and genitals. In patients with extensive skin detachment and a poor prognosis, the condition is called toxic epidermal necrolysis (TEN). Severe ocular complications (SOCs) appear in some-but not all-SJS/TEN patients who are diagnosed by dermatologists, and cold medicines including multi-ingredient cold medications and nonsteroidal anti-inflammatory drugs are the main causative drugs particularly for SJS/TEN with SOCs and all SJS and TEN. In this review, we focus on the genetic predisposition of cold medicine-related SJS/TEN (CM-SJS/TEN) with SOCs. CM SJS/TEN with SOCs was strongly associated with HLA-A*02:06 and significantly associated with HLA-B*44:03 in Japanese individuals, significantly associated with HLA-B*44:03 in Indian and Brazilian individuals, and associated with HLA A*02:06 in Korean individuals. In the first genome-wide association study (GWAS), we found an association between the prostaglandin E receptor 3 (PTGER3) gene and SJS/TEN with SOCs. In this study, we focused on CM-SJS/TEN with SOCs and found that the association of CM-SJS/TEN with SOCs became stronger than all SJS/TEN with SOCs. In the second GWAS, we found an association between the IKZF1 gene and CM-SJS/TEN with SOCs not only in Japanese, but also in Korean and Indian populations. Moreover, we found that TSHZ2 gene single nucleotide polymorphisms (SNPs) also showed especially low p values in the Japanese population; however, this association was not found in the Korean population. Furthermore, we investigated the interaction between susceptibility genes, and found multiplicative interactions of HLA-A*02:06 and TLR3 SNPs and additive interactions of HLA-A*02:06 and PTGER3 SNPs. PMID- 29018725 TI - Challenges in the management of glaucoma in developing countries. AB - Glaucoma is the most common optic neuropathy characterized by normal to raised intraocular pressure (IOP), visual field defects, loss of retinal nerve fiber layer, thinning of the neuroretinal rim, and cupping of the optic disc. IOP reduction by medical, laser, or surgical therapies remains the only clinically proven treatment of glaucoma. The challenges in glaucoma management are diverse. They include early detection and diagnosis, setting of appropriate target IOP, choice of treatment, monitoring of quality of life and sight, and compliance with the treatment. Early diagnosis can be made by assessing optic nerve structure using imaging devices and optic nerve function through perimetry. Reducing IOP and controlling its fluctuations are considered to be the most important factors in limiting progression of glaucoma. Selection of the best suitable therapy out of medical, surgical, or laser treatment options is yet another management challenge. Patients suffering from glaucoma experience poor quality of life owing to the diagnosis itself, functional visual loss, inconvenience and cost of treatment, and side effects of treatment. All these factors lead to poor compliance, adherence, and persistence to treatment, and further progression of the disease. It is, therefore, important that ophthalmologists keep all the aforementioned factors in mind when managing patients with glaucoma. PMID- 29018726 TI - Colored corn starch dust explosion-related ocular injuries at a Taiwan water park: A preliminary report from a single medical center. AB - PURPOSE: To elucidate the manifestations of ocular injuries in the colored corn starch dust explosion at a Taiwan water park. METHODS: This is a retrospective, non-comparative, consecutive-interventional case series. Fifty explosion-injury patients on 27 June 2015 treated at Chang-Gung Memorial Hospital, Linkou, were included. Thorough ophthalmic examinations were based on emergent triage and consecutive ophthalmological consultations. Multiple ocular and systemic parameters were assessed. RESULTS: Of the 100 eyes in the 50 cases reviewed, 22 cases were male and 28 cases were female. The mean age was 22.08 +/- 4.64 years, and the mean burn total body surface area (TBSA) of patients was 45.92 +/- 20.30%. Of the 50 patients, 20 had Grade 1 ocular burns, and the others were without ocular involvement. Two of the 20 cases that presented Grade 1 ocular burns died within 1 month due to other systemic complications. The most common ocular manifestations among those with ocular injuries included periocular swelling (75%), followed by conjunctival chemosis (65%), conjunctival hyperemia (50%), singed eyelashes (20%), cornea epithelial defects (10%), and punctate keratopathy (5%). It is worth mentioning that one patient developed herpes simplex keratitis due to stress 3 weeks after being burned. Half of the 50 patients had facial burns. Specifically, the patients with a greater TBSA presented more significant ocular-burn manifestations than those patients with lower TBSA. CONCLUSION: Prompt ophthalmologic consultations are particularly necessary for mass burn-casualty patients with facial burns, inhalation injuries, and greater TBSA. The inspection and control of all ignition sources and the manipulation of dust with low concentrations and in an open space are crucial factors to prevent future dust explosions. PMID- 29018727 TI - Comparative study of changes of corneal curvatures and uncorrected distance visual acuity prior to and after corneal collagen crosslinking: 1-year results. AB - BACKGROUND/PURPOSE: Keratoconus is the most common primary corneal ectatic disease and has considerable importance in public health. Corneal collagen crosslinking (CXL) is a procedure to mitigate progression of keratoconus and reduce demand for corneal transplantation. The aim of this study was to evaluate the effect of CXL on corneal topographic and uncorrected distance visual acuity (UDVA) by Oculus Pentacam in the 15-30-year-old population. METHODS: In this descriptive-analytic study, we enrolled 38 eyes of 27 patients suffering from progressive keratoconus who were candidates for CXL. UDVA and the anterior and posterior corneal curvatures assessed prior to and 12 months after CXL. Data were analyzed by the paired t test and p < 0.05 was considered significant. RESULTS: One year after the CXL, mean UDVA significantly improved 0.1 +/- 0.25 logarithm of the minimal angle of resolution (p = 0.012). Changes for steep keratometry values, flat keratometry, and mean keratometry on the anterior corneal surface were statistically significant (all p < 0.005). However, the difference observed in maximum keratometry and astigmatism was not significant (p = 0.421 and p = 0.745, respectively). After 12 months, all four keratometry values on the posterior corneal surface had increased significantly (p < 0.005), while no significant change observed in astigmatism (p = 0.303). CONCLUSION: Corneal collagen crosslinking has been revealed as an effective and minimally invasive intervention for the treatment of progressive keratoconus that can improve UDVA. PMID- 29018728 TI - Effect of potassium channel openers in acute and chronic models of glaucoma. AB - PURPOSE: Glaucoma is characterized by increased intraocular pressure (IOP). The effect of nicorandil and pinacidil on IOP in experimentally induced acute and chronic models of glaucoma and the mechanism of action involved were studied. METHODS: New Zealand white rabbits were used for the study. After the measurement of IOP, nicorandil (1%), pinacidil (1%), and pilocarpine as standard (1%) were instilled topically into the left eye. The other eye served as control. Dextrose (5%) was used to induce acute glaucoma. IOP changes were recorded every 15 minutes until the pressure became normal. Freshly prepared alpha-chymotrypsin solution was introduced in the posterior chamber to induce chronic glaucoma. Rabbits with ocular hypertension were selected for the study. Similar drug solutions were used to study the effect on IOP. Glibenclamide, pilocarpine, and indomethacin (1%) were used to study the mechanism of action of both drugs. The IOPs were measured just prior to drug instillation and at suitable time intervals using a tonometer. RESULTS: Pretreatment with topical nicorandil and pinacidil significantly lowered the rise in IOP in the acute model. Nicorandil and pinacidil initially caused rise in IOP for 15-30 minutes in chronic glaucoma. This was followed by reduction in IOP. Pretreatment with indomethacin and pilocarpine did not modify the effect of nicorandil and pinacidil on IOP. Pretreatment with glibenclamide blocked IOP from the lowering effect of nicorandil and pinacidil. CONCLUSION: The oculohypotensive effect shown by these drugs appears to be attributable to enhancement of the aqueous humor outflow. This effect is perhaps mediated through potassium channels. PMID- 29018730 TI - 26-G needle-assisted sutureless glueless intrascleral haptic fixation for secondary ciliary sulcus implantation of three-piece polymethylmethacrylate intraocular lens during penetrating keratoplasty. AB - After tenotomy adjoining 3 o'clock and 9 o'clock limbus, 3-mm-wide partial thickness scleral tunnels are created at these two diametrically opposite points 3 mm from the limbus such that they reach up to a distance of 1.5 mm from the limbus. Two ab externo sclerotomies are created using 26-G needles on the bed of these partial-thickness scleral tunnels. Precaution is taken to ensure that the positions of the sclerotomies are diagonally opposite each other. A scleral niche is made using a 26-G needle to accommodate the intraocular lens (IOL) haptic later. A 7.5-mm trephine is used to excise the corneal button, and anterior vitrectomy is performed. The haptic of a three-piece polymethylmethacrylate IOL is docked in a bent 26-G needle. It is then pulled out under the partial thickness scleral tunnel and placed securely in the scleral niche opposite to the haptic. An 8-mm donor corneal button is sutured in place using 16 equidistantly placed 10-0 nylon interrupted sutures. PMID- 29018729 TI - Clinical characteristics and visual outcome of macular hemorrhage in pathological myopia with or without choroidal neovascularization. AB - BACKGROUND/PURPOSE: This study aims to evaluate the clinical characteristics and visual outcome of macular hemorrhage in pathological myopia with or without choroidal neovascularization. METHODS: We conducted a retrospective study of 55 patients with macular coin hemorrhage who were followed for at least 3 months from January 1997 to December 2013 at Shin Kong Wu Ho-Su Memorial Hospital (Taipei, Taiwan). All patients were evaluated using fluorescein angiography and optical coherence tomography for the detection of choroidal neovascularization (CNV). We also recorded clinical characteristics such as age, sex, refractory error, and myopic fundus, to determine the relationship between CNV and non-CNV associated macular hemorrhage. RESULTS: A total of 55 patients (30 females, 54.55%) were reviewed. The mean age was 39.7 years old. The CNV group was found to be significantly older than the non-CNV group (p < 0.05), and there was no significant difference between sex, visual acuity myopic severity, and the prevalence of fundus findings between CNV and non-CNV groups. Twenty one patients (38.18%) were found to have CNV and were all treated with intravitreal antivascular endothelial growth factor (VEGF). The other 34 patients without CNV were not treated. In both groups, the visual acuity significantly improved (anti VEGF treated, CNV associated group, 0.7 to 0.39, p = 0.002, and untreated, non CNV associated group, 0.56 to 0.34, p = 0.0018, respectively). CONCLUSION: Age significantly correlated to the CNV formation in high myopia with macular hemorrhage. Favorable visual outcomes were found in pathological myopic macular hemorrhage either in the anti-VEGF treated, CNV associated group or in the untreated, non-CNV associated group. PMID- 29018732 TI - Bilateral retinal pigment epithelial rips in hypertensive choroidopathy. AB - Severe systemic hypertension can cause significant damage to the eye. Although hypertensive retinopathy is a well-known complication, hypertensive optic neuropathy and hypertensive choroidopathy are much less common. The aim of this article is to report an unusual case of hypertensive choroidopathy with bullous exudative retinal detachments in both eyes. The retinal detachments spontaneously resolved after blood pressure was controlled. However, multiple large retinal pigment epithelial (RPE) rips were found in both eyes. These RPE rips may be related to severe choroidal ischemia, and their locations may be compatible with the watershed zones of the choroidal perfusions. PMID- 29018731 TI - Rapid regression of cystoid macular edema associated with cytomegalovirus retinitis in adult acute myeloid leukemia by intravitreal methotrexate combined with oral valganciclovir: A case report with comparison of binocular outcome. AB - Cytomegalovirus (CMV) retinitis is a late complication of organ and hematopoietic stem cell transplant, the risk of which depends on the degree of immunosuppression. With the institution of preemptive ganciclovir therapy early after transplant, most patients survive episodes of life-threatening CMV infection during the early months (usually the first 3 months) after transplant and hence late onset of CMV disease, such as CMV retinitis, is being recognized more frequently. Direct involvement of the macula or optic head remains the leading cause of visual loss in patients with CMV retinitis, but there are few studies investigating the management of this condition. Herein, we present the case of 28-year-old man who had acute myeloid leukemia and developed CMV retinitis with bilateral cystoid macular edema and optic swelling in the right eye 6 months after bone marrow transplant. He received treatment with intravitreal methotrexate in the right eye in combination with oral valganciclovir. Visual acuity improved 1 month after four weekly injections of intravitreal methotrexate 400 ug/0.1 mL. Resolved disc swelling and regression of macular edema were also observed. By comparing binocular outcome, we present our findings and discuss the possible efficacy and safety of this treatment with respect to regression of anatomical damage and improvement in visual acuity. PMID- 29018734 TI - Optimizing surgical treatments in rhegmatogenous retinal detachment. PMID- 29018733 TI - Candida parapsilosis keratitis treated successfully with topical and oral fluconazole. AB - A 73-year-old male patient presented with ocular pain, redness, and blurred vision in the left eye, which had been ongoing for more than 2 months. An oval shaped paracentral corneal ulcer with stromal infiltration and a mild anterior chamber reaction were found. Despite treatment with empiric antibiotics, the lesion progressed and corneal thinning in the middle area was noted. The culture yielded Candida parapsilosis. We therefore prescribed topical 0.2% fluconazole (FCZ) in combination with oral FCZ as an antifungal treatment, following which the stromal infiltration gradually subsided. Complete epithelial-ization was noted on the 8th day after initiating FCZ therapy. There was no recurrent disease in the subsequent 2 years. Our case demonstrates that topical FCZ 0.2% in combination with oral FCZ can successfully treat C. parapsilosis keratitis and result in a good visual outcome. PMID- 29018735 TI - Primary retinal detachment: A review of the development of techniques for repair in the past 80 years. AB - BACKGROUND/PURPOSE: The evolution of present surgical techniques for reattaching a primary retinal detachment will be reviewed starting from 1929, and the present techniques analyzed in regard to their morbidity, reoperation, and long-term visual function. METHODS: Literature of retinal detachment operations during the past 80 years is reviewed, of which the author has first-hand experience during the past 40 years. There had been a change from surgery of the entire detachment to a surgery limited to the retinal break and a change from extraocular to intraocular surgery. RESULTS: The four major operations for repair of a primary retinal detachment in use at the beginning of the 21st century, have still one thing in common for sustained reattachment: to find and close the break that caused the primary retinal detachment and that would cause a redetachment, if not sealed completely. This is independent of whether the surgery is limited to the break or extends over the entire detachment and the same is true whether the surgery is performed as an extraocular or intraocular procedure. CONCLUSION: To find and close sufficiently the break in a primary retinal detachment has accompanied the efforts of retinal detachment surgeons during the past 80 years. This is still the premise for sustained reattachment. However, today four postulates have to be fulfilled: (1) retinal reattachment with the first operation; (2) the procedure should have a minimum of morbidity; (3) the procedure should not harbor secondary complications jeopardizing regained visual acuity; and (4) the procedure should be performed on a small budget with local anesthesia. PMID- 29018737 TI - Evidence-based medicine in glaucoma surgery. AB - Evidence-based medicine (EBM) is a tool and guide for performing effective medical treatment. Here, as an example, EBM was applied to determine which between trabeculectomy and Baerveldt implant surgery would be more effective in a patient with a history of open-angle glaucoma. First, the author asked answerable clinical questions. Second, evidence using general search engines, such as the Cochrane Library or MEDLINE database, was collected. It was found that the Tube Versus Trabeculectomy (TVT) Study was a landmark study in determining optimum glaucoma surgical procedure. Third, the study's level of evidence was carefully examined. As the TVT Study was a prospective, randomized multicenter control study, its level of evidence was high. Fourth, the evidence to actual clinical decisions was applied, calculating the magnitude of the treatment effect using the results of the TVT Study. The event (surgical failure) rate in the control (trabeculectomy) and experimental (tube implant) groups (control event rate and experimental event rate, respectively) was obtained and the absolute risk reduction (ARR) was calculated by subtracting the experimental event rate from the control event rate. The inverse of ARR is the number needed to treat (NNT), which is the number of patients who must be treated to prevent a bad outcome. Using this method, it is possible to calculate the absolute risk (adverse event) increase (ARI) and the number needed to harm one more patient (NNH = 1/ARI). The balance of NNT and NNH is called the "likelihood of being helped and harmed." The practice of EBM integrates clinical expertise of individuals with the best available external clinical evidence from systematic research. PMID- 29018736 TI - Recent progress in the diagnosis and treatment of primary vitreoretinal lymphoma. AB - Primary vitreoretinal lymphoma (PVRL) was previously termed primary intraocular lymphoma. PVRL is a potentially fatal intraocular malignancy, and 65-90% of PVRL cases eventually involve the central nervous system (CNS). The incidence of PVRL has been rising in both immunocompromised and immuno-competent populations worldwide. PVRL frequently masquerades as chronic uveitis. Advanced auxiliary examinations, such as optical coherence tomography and fundus autofluorescence have been applied in the diagnosis of PVRL. Histology and immunohistochemistry in combination with molecular tests and interleukin-10 analysis have been demonstrated as reliable in diagnosing PVRL. Despite early initiation of treatment, mortality is high with PVRL associated with CNS involvement and relapses are common. The use of systemic chemotherapy has not been proven to prevent CNS involvement; however, local therapies including intravitreal injections of methotrexate and/or rituximab and low-dose radiotherapy to the eye, has shown to be extremely effective in controlling intraocular lymphoma with encouraging results. PMID- 29018738 TI - Controversies in the vascular theory of glaucomatous optic nerve degeneration. AB - An understanding of the pathogenesis of glaucoma is one of the foundations in glaucoma management. A number of theories have been presented to explain glaucomatous neural degeneration. The vascular theory attempts to explain the causation of glaucoma on the basis of vasogenic factors and altered he-modynamics in the body; however, this theory remains controversial. There are proponents for and against the role played by vascular factors in the development of glaucomatous optic nerve degeneration. This review aims to analyze the various studies performed to provide evidence for and against the vascular theory of glaucoma. It also affirms the need to undertake further studies regarding the path-ogenesis of glaucoma and integrate them into our management strategies. The literature search for this systemic analysis was performed using search engines, such as PubMed, The Virtual Library of the Ministry of Health Malaysia, Google Scholar, and ClinicalKey. PMID- 29018740 TI - Simple dacryops: Do we really need imaging? PMID- 29018741 TI - Vitrectomy for macular hole following Nd:YAG laser injury. AB - The Q-switched Nd:YAG laser can cause significant ocular injury, because it can emit an invisible and powerful load of energy in a short period of time. One of these injuries is macular hole formation. We report the case of a 21-year-old woman who presented with acute floaters in her left eye after exposure to a Q switched Nd:YAG laser. Her initial best-corrected visual acuity (BCVA) in the left eye was 20/80. Examination demonstrated an acute vitreous hemorrhage, and spectral-domain optical coherence tomography (SD-OCT) confirmed a full-thickness macular hole (FTMH). Four months after her injury, her BCVA deteriorated to 20/400, and she underwent vitrectomy, internal limiting membrane peeling, and gas injection. Three weeks following the procedure, her FTMH was closed, however, her BCVA remained 20/150. At her last office visit, 19 months after the surgery, the examination was unchanged. There are few reports of vitrectomy to close an FTMH after Nd:YAG laser exposure, and the factors that contribute to visual recovery remain unclear. The aim of this case report is to emphasize the importance of early diagnosis and surgical repair, and to review the literature and surgical outcomes of cases of Nd:YAG laser-induced macular holes. Imaging with SD-OCT was essential in evaluating the visual outcome, as it was dependent on the degree of photoreceptor and retinal pigment epithelium injury. PMID- 29018739 TI - The distribution of near point of convergence, near horizontal heterophoria, and near vergence among myopic children in South Korea. AB - BACKGROUND/PURPOSE: To assess the distribution of near point of convergence (NPC), near heterophoria, and near vergence among myopic school children in South Korea. METHODS: One hundred and thirty-six elementary school children, aged 8-13 years, were each given a thorough eye examination including binocular vision testing, NPC using standard push-up technique, horizontal heterophoria measurement by Von Graefe, distance, and near negative and positive vergence with a phoropter and phoropter replacement card. RESULTS: NPC break and recovery points were highest in the age 9 years group, but the mean values of NPC were within the normal range. Of 136 individuals, 52 presented with esophoria, 53 presented with 0 -6-Delta exophoria, and 31 presented with >=7-Delta exophoria. In the younger age groups (8 years and 10 years) 0-6-Delta exophoria was prevalent, whereas in the older age groups (11 years, 12 years, and 13 years) esophoria was prevalent. Near positive fusional vergence (break and recovery point) presented with statistically significant correlations with the participants' ages. Esophoria showed higher correlations with high myopia (8.00 +/- 0.000) rather than with low myopia (3.36 +/- 2.499) or medium myopia (3.42 +/ 2.149). The mean value of 0-6Delta exophoria was highest in medium myopia (4.04 +/- 1.517), and of >=7-Delta exophoria was the highest in high myopia (12.66 +/- 1.154). CONCLUSION: There were no statistically significant correlations between the school childrens' ages and NPC, near horizontal heterophoria, and near fusional vergence, except near positive fusional vergence. Also, unlike many studies, myopic magnitude did not present a significant correlation with near phoria and fusional vergence. PMID- 29018742 TI - Novel technique for removal of persistent subretinal fluid following nondrain retinal detachment surgery. AB - This manuscript describes a case of successful reattachment of a macular-off retinal detachment following optical coherence tomography-guided internal drainage of retained subretinal fluid following a nondrain method. To date, there has not been any documented treatment option for this common phenomenon. This novel technique describes a method to remove such fluid and successfully appose the retina to the retinal pigment epithelial layer. PMID- 29018743 TI - Contact dermatitis on the lower eyelid related to tick infestation: A case report in Taiwan. AB - Tick bite on the lower eyelid is a rare condition. We reported a case of contact dermatitis on the lower eyelid related to the tick infestation. Ticks are vectors for disease transmission. Symptoms and treatments for tick-borne diseases were reviewed. PMID- 29018744 TI - Ocular syphilis masquerading as bilateral peripheral ulcerative keratitis. AB - Ocular syphilis has varied manifestations in the eye. Peripheral ulcerative keratitis (PUK) is a crescent-shaped ulcer involving the peripheral cornea and associated with thinning. PUK is caused by both autoimmune and infectious diseases, such as rheumatoid arthritis, tuberculosis, and herpes. Here, we report a rare case of bilateral PUK caused by syphilis. A 55-year-old man presented with recurrent pain and redness in both eyes for 2 months. The cornea of both eyes had bilateral peripheral crescent-shaped ulcers suggestive of PUK. The patient was started on topical steroids elsewhere, but the lesion was not showing any signs of healing. A series of investigations were performed, with positive venereal disease research laboratory and fluorescent treponemal antibody absorption tests. The patient was then started on systemic penicillin, as well as topical steroids. The response to the treatment was good and the ulcer began to heal. PUK as the presenting feature of acquired syphilis is a rare scenario. Such infective causes should be managed with systemic antimicrobials for optimal outcomes. PMID- 29018746 TI - An innovative era of pediatric ophthalmology and strabismus. PMID- 29018745 TI - Treacher Collins syndrome: A case report and review of ophthalmic features. AB - Treacher Collins syndrome is a congenital disorder with bilaterally symmetric anomalies of the structures developing from the first and second branchial arches. The ocular and orbital features are an obligatory component for the diagnosis. We presented a case of typical, complete syndrome and also reviewed the varied ophthalmological manifestations of the disease in the literature. Antimongoloid slanting of palpebral fissures and lower lid colobomas are constant features of the syndrome. However, varied ocular and lacrimal drainage anomalies are also associated. TCS is a syndrome with multiple ocular and orbital features, a knowledge of which will help in the diagnosis of incomplete forms of the syndrome. PMID- 29018747 TI - Pearls and pitfalls in the management of Duane syndrome. AB - Duane syndrome (DS) is a common form of congenital cranial dysinnervation disorders. The ocular motility pattern lies in a wide clinical spectrum, and the choice of treatment must be individualized depending on the severity of the clinical findings. There is no perfect method of treatment and no real "cure" in DS. In this paper, the aim is to give some guidelines to the reader for selection of the most appropriate treatment method for the patient. PMID- 29018748 TI - Historical review of inferior oblique muscle surgery. AB - Surgery on inferior oblique muscle has a long history and various surgical techniques have been developed. The historical review of the surgery starting in 1840's to date is performed. The surgical effectiveness between simple myectomy and recession is still controversial. PMID- 29018749 TI - The diagnostic challenge of evaluating papilledema in the pediatric patient. AB - Pseudopapilledema is a fairly common finding in ophthalmic practice, and in many cases, the diagnosis is straightforward. However, an accurate diagnosis can challenge the most seasoned clinicians, and missing true papilledema can result in life-threatening or vision-threatening consequences. In this review, we describe the clinical findings and a diagnostic algorithm to distinguish pseudopapilledema and papilledema in the pediatric patients. We also describe the clinical evaluation once a diagnosis of papilledema has been established. PMID- 29018750 TI - Management of diplopia with visual-field defects. AB - PURPOSE: The management of diplopia can be challenging in patients with a concurrent visual-field (VF) defect. We conducted a retrospective chart review to analyze and compare treatment outcomes for different types of VF defects. METHODS: A retrospective chart review. RESULTS: Seven patients with diplopia and VF defects were identified during the study. Four had bitemporal hemianopia, one had homonymous hemianopia, and two had a constricted central VF. A favorable or satisfactory outcome was achieved in all but two patients with bitemporal hemianopia. CONCLUSIONS: The hemifield-slide diplopia may develop in patients with bitemporal hemianopia or heteronymous altitudinal visual defects. Sensory abnormalities usually persist, even after elimination of ocular misalignment. PMID- 29018751 TI - Knowledge and practices of teachers associated with eye health of primary school children in Rawalpindi, Pakistan. AB - PURPOSE: Teachers' perspectives on eye health can be limited, particularly in developing countries. The aim of this study was to assess teachers' knowledge and practices associated with eye health of primary students in Rawalpindi, Pakistan. METHODS: This was a cross-sectional survey of primary school teachers. Simple random sampling technique was used to select 443 participants from 34 private and 17 public schools. A self-administered questionnaire was used. RESULTS: Teachers' knowledge ranged from "high" (35.89%), "moderate" (49.89%), and "low" (14.22%). Teachers' practices associated with students' eye health ranged from "high" (10.16%), "moderate" (23.02%), and "low" (66.82%). The teachers' knowledge index scores increased 4.28 points with successive age groups and increased 2.41 points with each successive level of education. For teachers whose close relatives experienced eye disease, their knowledge index score was 4.51 points higher than those teachers whose relatives never had any eye disease. Teachers' age, education level, and their close relatives experiencing eye disease were significant predictors of their knowledge (R2 = 0.087, P < 0.001). Female teachers' practices index score was 10.35 points higher than the male teachers and public school teachers had 10.13 points higher than the private school teachers. Teachers' gender and type of school were significant predictors of their practices (R2 = 0.06, P < 0.001). CONCLUSION: There was a significant gap among primary school teachers' knowledge and practices related to students' eye health. Innovative strategies are needed to improve how teachers address students' eye health issues in the classroom. PMID- 29018752 TI - Y-splitting with recession of lateral rectus versus lateral rectus recession in correcting upshoot in Duane retraction syndrome. AB - PURPOSE: To report the surgical effect in upshoot of Duane retraction syndrome (DRS) with corecession of horizontal rectus muscles with or without Y-splitting. PATIENTS AND METHODS: A retrospective chart review of six patients of DRS received muscle surgeries for upshoot in adducted position was performed. RESULTS: From 1994 to 2010, six Duane patients received muscle surgeries for upshoots of lesion eye in adduction. Their age of receiving surgery ranged from 5 to 41 years. Four of the patients were male, and five had their left eye involved. Three underwent recession of ipsilateral medial and lateral rectus (LR) muscles, and the other three also received Y-splitting of LR muscle when recession. One of the patients that received Y-splitting showed mild hypertropia at down gaze postoperatively, and another one had little improvement of exotropia at the primary position. All patients showed improvement of their upshoots and lid fissure narrowing in adduction as well as face turn. CONCLUSION: Postoperative improvements in abnormal head posture and upshoots were achieved with corecession of horizontal muscles with or without Y-splitting. Although Y splitting of the LR muscle is an effective surgery, it might cause undesired complications. PMID- 29018753 TI - Adjustable suture strabismus surgery in pediatric patients using pull-string technique. AB - BACKGROUND/PURPOSE: The concept of adjustable suture has been developed in strabismus surgeries for nearly four decades. This technique is not yet universally embraced by strabismus surgeons, especially in pediatric patients. The aim of this study is to describe and evaluate the application of the adjustable suture with pull-string technique in pediatric patients. METHODS: A retrospective medical record review was conducted for patients aged 18 years and under who received adjustable suture strabismus surgery using short tag sliding noose with pull-string technique. For the analysis, the patients were arbitrarily divided into three age groups: 6 years and younger, between 6 and 12 years, and 12 years and older. Patients were examined at 1 week and 1, 3, and 6 months after surgery. RESULTS: A total of 123 patients were enrolled in this study. The mean age at the time of surgery was 9.4 years, ranging from 0.7 to 18.4 years. Eighteen (14.6%) patients required adjustment and 105 (85.4%) patients did not require adjustment. The average follow-up was 10.2 months (range, 1-48 months). At their final postoperative follow-up, 93 of 123 (75.6%) patients were within 10 prism diopters of orthophoria. The success rates were 77.6% (66/85) in exotropia patients and 71.1% (27/38) in esotropia patients. The success rates were 76.4% (84/110) for those who receive the procedure as primary surgery and 69.2% (9/13) for those who receive the procedure as reoperative surgery. Of the 18 patients who required adjustment, 16 (88.9%) patients were successful. Of the 105 patients who did not require adjustment, 77 (73.3%) patients were successful. CONCLUSION: This study showed that the pull-string technique provided similar success rate compared to those reported in literature in pediatric patients. The pull-string technique is developed to simplify the postoperative adjustments. Many surgeons encounter difficulties to handle the postoperative adjustments, especially when they need to retrieve the buried subconjunctival adjustable sutures. The obstacles are reduced with the aid of pull string. Using the pull-string technique, the surgeon can perform adjustable suture surgeries in any age group with confidence. PMID- 29018754 TI - How to effectively manage myopia. AB - Myopia has become epidemic in the world. Without effective control, the progression may lead to excessive myopia with severe complications affecting vision and ocular alignment. The genetic factors and environmental factors of myopia are closely interrelated to each other. Asian ethnicity and parental myopia, among other genetic factors, influence the refractive outcome dramatically when environmental risk factors such as hours of near work and reading distance are analyzed. Outdoor activities are protective measures that retard myopia progression. Total time under the sun and not the specific outdoor activities are contributing factors. Current effective treatments for myopia include atropine of high, moderate, and low doses, relative peripheral myopia inducing devices, and bifocal spectacles including prism bifocal spectacle lenses. Although atropine is considered highly effective in randomized controlled trials, it is not well tolerated in a clinical setting, especially in high dosage. Since the severity of rebound effect of atropine after cessation of usage and the side effects are directly related to the concentration of the medication, it is recommended that low-dose atropine is used in the initial attempt. Higher concentration for better control can be considered when compliance is observed. Devices that induce relative peripheral myopia such as orthokeratology are moderately effective interventions that are well accepted by children who wish to be spectacle free. Bifocal spectacles generally have low effect in myopia control. Prism bifocal spectacle lenses may have a special niche in myopia retardation for patients with low lags of accommodation. PMID- 29018755 TI - Vertical diplopia after cataract surgery, overacting, and/or underacting extraocular muscle. AB - The purpose of this study was to demonstrate two cases of vertical diplopia after cataract surgery and to discuss the mechanism and types of strabismus caused by the local anesthesia with retrobulbar injection. Two cases of vertical diplopia after cataract surgeries were reported. They were operated by the same surgeon and both happened to the left eye and both presented with marked left hypotropia. The clinical findings consisted of overacting left inferior rectus (LIR) in case 1 and mixed overacting and restrictive LIR in case 2. The diplopia and left hypotropia were eliminated after muscle operation. Retrobulbar injection is a basic technique in ophthalmic practice. Although it is generally safe, complications do happen in certain cases including diplopia and strabismus. Ophthalmologists should know about the orbital anatomy and learn to prevent any accidental insult to extraocular muscles. PMID- 29018756 TI - Descemet's Stripping-automated Endothelial Keratoplasty for symptomatic thioridazine deposits in the cornea. AB - The aim of this study was to use Descemet's Stripping-automated Endothelial Keratoplasty (DSAEK) as a novel treatment to remove thioridazine corneal deposits. A 53-year-old female presented with a 3-month history of visual loss and glare. She had been taking thioridazine (100 mg/day for 1 year) for a psychiatric disorder. Dense yellowish-brown deposits had developed in the posterior stroma. Thioridazine was discontinued, and she was switched to fluoxetine. One year after discontinuation of thioridazine, her symptoms and signs did not resolve. Standard DSAEK was performed on her left eye. Two weeks after DSAEK, an anterior subcapsular cataract was detected in the same eye. Phacoemulsification and intraocular lens implantation were performed after 3 months. The left cornea became completely clear after DSAEK, and the patient's best-corrected visual acuity improved from 20/40 to 20/20 at 1 month after cataract surgery. All-visual symptoms such as glare and halos improved postoperatively. We suggest that DSAEK can be used as a novel treatment to reduce vision problems caused by thioridazine-induced corneal deposits. PMID- 29018757 TI - Macular edema might be a rare presentation of hydroxychloroquine-induced retinal toxicity. AB - The aim of this study is to report a rare case of macular edema as a presentation of hydroxychloroquine-related retinal toxicity. We presented a case of a 46-year old female patient using hydroxychloroquine for underlying rheumatoid arthritis (RA) with blurred vision over the left eye. Uveitis and macular edema were found initially. Systemic survey did not reveal any other etiology. Topical corticosteroid was given under the impression of RA-related uveitis. The uveitis resolved 1 week later, but macular edema persisted in spite of treatment. Under the suspicion of drug-related complication, we try to discontinue hydroxychloroquine. Her symptoms improved gradually after cessation of hydroxychloroquine, and further serial image study confirmed subsiding of the macular edema without any further treatment. Except the well-known signs of the retinal toxicity, macular edema might be a rare presentation of hydroxychloroquine-related retinal toxicity. PMID- 29018758 TI - Therapy for Amblyopia: A newer perspective. PMID- 29018760 TI - Management of macular edema due to central retinal vein occlusion - The role of aflibercept. AB - Central retinal vein occlusion (CRVO) can cause vision loss. The pathogenesis of CRVO involves a thrombus formation leading to increased retinal capillary pressure, increased vascular permeability, and possibly retinal neovascularization. Vision loss due to CRVO is commonly caused by macular edema. Multiple treatment modalities have been used to treat macular edema. Currently, the most common therapy used is intravitreal inhibition of vascular endothelial growth factor (VEGF). The three most widely used agents are aflibercept, bevacizumab, and ranibizumab and they are effective at blocking VEGF. In addition, intraocular steroids can be used to treat macular edema. This review will briefly cover the treatment options and discuss in greater detail the efficacy and safety of aflibercept. PMID- 29018759 TI - Pharmacological therapy for amblyopia. AB - Amblyopia is the most common cause of preventable blindness in children and young adults. Most of the amblyopic visual loss is reversible if detected and treated at appropriate time. It affects 1.0 to 5.0% of the general population. Various treatment modalities have been tried like refractive correction, patching (both full time and part time), penalization and pharmacological therapy. Refractive correction alone improves visual acuity in one third of patients with anisometropic amblyopia. Various drugs have also been tried of which carbidopa & levodopa have been popular. Most of these agents are still in experimental stage, though levodopa-carbidopa combination therapy has been widely studied in human amblyopes with good outcomes. Levodopa therapy may be considered in cases with residual amblyopia, although occlusion therapy remains the initial treatment choice. Regression of effect after stoppage of therapy remains a concern. Further studies are therefore needed to evaluate the full efficacy and side effect profile of these agents. PMID- 29018761 TI - Using stem cell biology to study and treat ophthalmologic and oculoplastic diseases. AB - With the rapid growth of the stem cell biology field, the prospect of regenerative medicine across multiple tissue types comes closer to reality. Several groundbreaking steps paved the way for applying stem cell biology to the several subfields within ophthalmology and oculoplastic surgery. These steps include the use of stem cell transplants as well as studies of various ophthalmologic pathologies at the molecular level. The necessity of stem cell transplant is readily apparent, having already been used for several studies such as artificial lacrimal gland design and eyelid reconstruction. Investigating the stem cell biology behind oncological diseases of the eye has also developed recently, such as with the identification of specific markers to label cancer stem cells in orbital adenoid cystic carcinoma. The advent of induced pluripotent stem cells led to a burst of productivity in the field of regenerative medicine, making it possible to take a patient's own cells, reprogram them, and use them to either study patient-specific pathology in vitro or use them for eventual patient specific therapeutics. Patient-specific adipose-derived stem cells (ASCs) have been used for a variety of treatments, such as wound healing and burn therapies. As the fields of stem cell biology and regenerative medicine continue to progress, its use will become a mainstay of patient-specific cell therapies in the future. PMID- 29018762 TI - Visual performance after excimer laser photorefractive keratectomy for high myopia. AB - PURPOSE: To evaluate the efficacy, safety, predictability, and visual performance of excimer laser photorefractive keratectomy (PRK) for myopia greater than -8 diopters (D). METHODS: Fifty-four patients (104 eyes) with myopia from -8D to 13D and cylinder up to -4D received surface ablation technique with the Allegretto wave version 1009-1 excimer laser to correct their refractive error. The patients were examined on days 1, 3, 7, and 14 and 1, 3, 6, and 12 months postoperatively. Visual acuity, manifest refraction, corneal haze, topography, intraocular pressure, contrast sensitivity, and wavefront aberration were evaluated. RESULTS: Twelve months postoperatively, 95% of eyes were within 1D of the intended correction. In addition, 94% of eyes had attained uncorrected distance visual acuity of 20/25 or better, and 98% of eyes had improved or remained their corrected distance visual acuity. All eyes exhibited barely detectable corneal haze which peaked during the 1st month with a gradual reduction in the 3rd month. Ninety-five percent of patients had no or only mild degree of night glare. CONCLUSIONS: Excimer laser PRK is an effective and predictive treatment for high myopia greater than -8D with or without astigmatism up to -4D. The incidence of complication is low. All patients who are candidates for laser in situ keratomileusis can be candidates for surface ablation, especially those with preoperative thinner cornea or higher risk of corneal flap complications. PMID- 29018763 TI - Ocular manifestations of sickle cell disease and genetic susceptibility for refractive errors. AB - PURPOSE: Sickle cell disease (SCD) is the most common and serious form of an inherited blood disorder that lead to higher risk of early mortality. SCD patients are at high risk for developing multiorgan acute and chronic complications linked with significant morbidity and mortality. Some of the ophthalmological complications of SCD include retinal changes, refractive errors, vitreous hemorrhage, and abnormalities of the cornea. MATERIALS AND METHODS: The present study includes 96 SCD patients. A dilated comprehensive eye examination was performed to know the status of retinopathy. Refractive errors were measured in all patients. In patients with >10 years of age, cycloplegia was not performed before autorefractometry. A subset of fifty patients' genotyping was done for NOS3 27-base pair (bp) variable number of tandem repeat (VNTR) and IL4 intron-3 VNTR polymorphisms using polymerase chain reaction-electrophoresis. Chi-square test was performed to test the association between the polymorphisms and refractive errors. RESULTS: The results of the present study revealed that 63.5% of patients have myopia followed by 19.8% hyperopia. NOS3 27-bp VNTR genotypes significantly deviated from Hardy-Weinberg equilibrium (P < 0.0001). Although IL4 70-bp VNTR increased the risk of developing refractive errors, it is not statistically significant. However, NOS3 27-bp VNTR significantly reduced the risk of development of myopia. CONCLUSION: In summary, our study documents the prevalence of refractive errors along with some retinal changes in Indian SCD patients. Further, this study demonstrates that the NOS3 VNTR contributes to the susceptibility to development of myopia in SCD cases. PMID- 29018765 TI - Surgical results for consecutive exotropia. AB - PURPOSE: To evaluate the surgical results of medial rectus (MR) muscle advancement with or without recession of the antagonist muscle for consecutive exotropia. METHODS: Medical records of patients with consecutive exotropia (n = 27) were retrospectively reviewed. All patients received one-eye surgery with MR advancement, lateral rectus (LR) recession, or combined surgery. The pre- and post-operative angle of deviation was recorded. Characteristics were compared between groups. The follow-up period was at least 3 months. RESULTS: The overall successful rate was 62.96%, with 50% in MR advancement group, 60% in LR recession group, and 71.4% in combined group. Patients in combined group had larger preoperative deviation. There were comparable surgical results between patients with inferior oblique (IO) muscle overaction receiving correction simultaneously and patients without IO muscle overaction. CONCLUSIONS: The overall surgical successful rate for consecutive exotropia in this study was 62.96%. Combined MR advancement and LR recession yielded better results than MR advancement or LR recession alone although it was not statistically significant. PMID- 29018764 TI - Scleral buckling-induced ocular parameter changes in different age group patients of rhegmatogenous retinal detachment. AB - PURPOSE: This study was aimed to evaluate the difference in the ocular parameter changes following scleral buckling (SB) for rhegmatogenous retinal detachment (RRD) in different age group patients. MATERIALS AND METHODS: This prospective study included 26 eyes of 26 patients who underwent SB for uncomplicated RRD. The patients were divided into three age groups: 16-30 years (Group I), 31-45 years (Group II), and 46-60 years (Group III). Axial length (AL), anterior chamber depth (ACD), and corneal curvatures were measured preoperatively and postoperatively at 1 week, 1 month, and 3-month. The postoperative change and progression of these parameters were evaluated and compared between three age groups using nonparametric Wilcoxon signed-rank test and Kruskal-Wallis test. RESULTS: At 3-month follow-up, a statistically significant postoperative AL increase, ACD decrease, and surgically induced astigmatism (SIA) were observed in all groups (Group I - 0.75 +/- 0.32 mm, 0.21 +/- 0.21 mm, and 1.5 +/- 0.48 D, respectively; Group II - 0.79 +/- 0.41 mm, 0.14 +/- 0.04 mm, and 2.07 +/- 1.18 D, respectively; Group III - 0.86 +/- 0.33 mm, 0.16 +/- 0.05 mm, and 1.56 +/- 1.19 D, respectively). However, surgery-induced change for any parameter was not significantly different between the groups (P for AL [0.7955]; ACD [0.8805]; and SIA [0.5485]). Progression in postoperative changes in AL and ACD was insignificant during three follow-up examinations in all the groups. However, SIA of Group I continued to change significantly up to 3 months but stopped to change at 1 month only in Group II and III. CONCLUSION: Age-related change in physical properties of ocular tissue does not have any major additional effect on the results of SB except that the postsurgical change in corneal curvature stops earlier in older patients compared to that in younger patients. PMID- 29018766 TI - Acute angle closure following periorbital botulinum toxin injection in a patient with retinitis pigmentosa. AB - A 50-year-old female presented with bilateral retinitis pigmentosa (RP) and acute angle closure (AAC) with fixed mid-dilated pupil and high intraocular pressure (IOP) in the left eye following left side periorbital botulinum toxin A injection for blepharospasm. Glaucomatous optic neuropathy and retinal nerve fiber layer defect were observed in the affected eye using optical coherence tomography although the IOP was maintained at <21 mmHg after the treatment. Botulinum toxin acts at the cholinergic synapse and inhibits acetylcholine release; hence, it can cause transient mydriasis and may lead to AAC in high-risk populations such as patients with RP. Patients should be explained about the possible development of mydriasis associated with botulinum toxin injection, and clinicians must evaluate the level of risk for AAC before administration of botulinum toxin around the eyelid. In cases showing side effects associated with botulinum toxin injection, early diagnosis and treatment is required to prevent blindness. PMID- 29018767 TI - Optical coherence tomography features in a case of Type I sialidosis. AB - A 15-year-old boy presented with progressive myoclonic epilepsy and unbalance gaits for 4 years. Slit lamp examination showed a punctate cataract and funduscopic examination revealed bilateral macular cherry-red spots. Macular scan of spectral domain optical coherence tomography (SD-OCT) showed hyperreflectivity of the inner retinal layer and apparent hyperreflectivity of the photoreceptor layers in the foveal region. The clinical presentations were consistent with a Type I sialidosis which led to genetic analysis and revealed NEU1 mutation in this patient. He was under regular follow-up by ophthalmologist and neurologist. Sialidosis is a rare lysosomal storage disease resulting from a deficiency of alpha-N-acetyl neuraminidase caused by a mutation in the NEU1 gene. This results in abnormal intracellular accumulation of sialyloligosaccharides in brain neurons and ganglion cells of the retina. SD-OCT is a useful tool in detecting macular cherry-red spot and has a role in evaluating the extent of ganglion cell damage. It can aid in the differential diagnosis and long-term follow-up of the neurological metabolic disorders. PMID- 29018768 TI - Soft tissue recurrence of giant cell tumor of the bone: Prevalence and radiographic features. AB - AIM: Recurrence of giant cell tumor of bone (GCTB) in the soft tissue is rarely seen in the clinical practice. This study aims to determine the prevalence of soft tissue recurrence of GCTB, and to characterize its radiographic features. METHODS: A total of 291 patients treated by intralesional curettage for histologically diagnosed GCTB were reviewed. 6 patients were identified to have the recurrence of GCTB in the soft tissue, all of whom had undergone marginal resection of the lesion. Based on the x-ray, CT and MRI imaging, the radiographic features of soft tissue recurrence were classified into 3 types. Type I was defined as soft tissue recurrence with peripheral ossification, type II was defined as soft tissue recurrence with central ossification, and type III was defined as pure soft tissue recurrence without ossification. Demographic data including period of recurrence and follow-up duration after the second surgery were recorded for these 6 patients. Musculoskeletal Tumor Society (MSTS) scoring system was used to evaluate functional outcomes. RESULTS: The overall recurrence rate was 2.1% (6/291). The mean interval between initial surgery and recurrence was 11.3 +/- 4.1 months (range, 5-17). The recurrence lesions were located in the thigh of 2 patients, in the forearm of 2 patients and in the leg of the other 2 patients. According to the classification system mentioned above, 2 patients were classified with type I, 1 as type II and 3 as type III. After the marginal excision surgery, all patients were consistently followed up for a mean period of 13.4 +/- 5.3 months (range, 6-19), with no recurrence observed at the final visit. All the patients were satisfied with the surgical outcome. According to the MSTS scale, the mean postoperative functional score was 28.0 +/- 1.2 (range, 26-29). CONCLUSIONS: The classification of soft tissue recurrence of GCTB may be helpful for the surgeon to select the appropriate imaging procedure to detect the recurrence. In addition, the marginal resection can produce a favorable outcome for the patients. PMID- 29018769 TI - Homeless shelter context and tuberculosis illness experiences during a large outbreak in Atlanta, Georgia. AB - Setting: Persons experiencing homelessness (PEH) represent a population at high risk for tuberculosis (TB). While quantitative studies have characterized some important features of this key group, less has been captured directly from PEH about how they experience TB illness itself and the prevention and control measures implemented in response to an outbreak. This qualitative study aimed to explore PEH's TB disease experiences in the context of a large TB outbreak involving homeless shelters in Atlanta, Georgia, USA. Design: This was a qualitative cross-sectional study involving in-depth interviews with 10 PEH with active TB disease. Key themes were identified through coded data analysis. Results: The central theme to emerge was that stressful social environments of homeless shelters shape illness experiences and health care seeking behaviors, and limit the influence of shelter-based prevention and control measures implemented in response to a TB outbreak. Despite availability, shelter-based latent tuberculous infection (LTBI) testing and education services were minimally engaged. Furthermore, hardships inherent to homelessness were interrelated with disease normalization and symptom minimization. Conclusions: Homeless shelter related stress may have important implications for the prevention and control of TB outbreaks in this setting. This stress may hinder case finding; a model of supplemental TB education and testing for LTBI at proximal community venues is necessary. PMID- 29018770 TI - Master of Science (MSc) Program in Radiation Biology: An Interdepartmental Course Bridging the Gap between Radiation-Related Preclinical and Clinical Disciplines to Prepare Next-Generation Medical Scientists. AB - Radiation biology is a highly interdisciplinary field at the interface of biology, physics, and medicine. It is characterized by rapid advances in biological and technical knowledge. The potential for using these advances to optimize medical care, radiation protection, and related fields can be exploited only with complementary activities to support the education of young academics. A small number of academic institutions have committed resources into radiation related courses and curricula; however, few offer a comprehensive interdepartmental research and training program. At the Technical University of Munich (TUM), a full Master of Science (MSc) course in radiation biology has been established. This article describes the TUM MSc radiation biology program, discusses the scope of the field, the teaching goals, and the interdisciplinary curriculum. Detailed information on the full MSc program can be found continuously updated at www.radonc.med.tum.de/masterradiationbiology. PMID- 29018772 TI - Editorial: Cancer Metabolism: Molecular Targeting and Implications for Therapy. PMID- 29018774 TI - Influenza A Virus as a Predisposing Factor for Cryptococcosis. AB - Influenza A virus (IAV) infects millions of people annually and predisposes to secondary bacterial infections. Inhalation of fungi within the Cryptococcus complex causes pulmonary disease with secondary meningo-encephalitis. Underlying pulmonary disease is a strong risk factor for development of C. gattii cryptococcosis though the effect of concurrent infection with IAV has not been studied. We developed an in vivo model of Influenza A H1N1 and C. gattii co infection. Co-infection resulted in a major increase in morbidity and mortality, with severe lung damage and a high brain fungal burden when mice were infected in the acute phase of influenza multiplication. Furthermore, IAV alters the host response to C. gattii, leading to recruitment of significantly more neutrophils and macrophages into the lungs. Moreover, IAV induced the production of type 1 interferons (IFN-alpha4/beta) and the levels of IFN-gamma were significantly reduced, which can be associated with impairment of the immune response to Cryptococcus during co-infection. Phagocytosis, killing of cryptococci and production of reactive oxygen species (ROS) by IAV-infected macrophages were reduced, independent of previous IFN-gamma stimulation, leading to increased proliferation of the fungus within macrophages. In conclusion, IAV infection is a predisposing factor for severe disease and adverse outcomes in mice co-infected with C. gattii. PMID- 29018777 TI - Rationale, Feasibility and Acceptability of Ketogenic Diet for Cancer Treatment. AB - Ketogenic diet has been used for more than 80 years as a successful dietary regimen for epilepsy. Recently, dietary modulation by carbohydrate depletion via ketogenic diet has been suggested as an important therapeutic strategy to selectively kill cancer cells and as adjuvant therapy for cancer treatment. However, some researchers insist ketogenic diet to be highly undesirable as ketogenic diet may trigger and/or exacerbate cachexia development and usually result in significant weight loss. This review revisits the meaning of physiological ketosis in the light of this evidence and considers possibility of the use of ketogenic diet for oncology patients. Article search was performed from 1985 through 2017 and finally 10 articles were analyzed. The review focused on the results of human trials for cancer patients and checked the feasibility of using ketogenic diet for cancer patients as adjuvant therapy. The main outcomes showed improvement of body weight changes, anthropometric changes, serum blood profiles, and reduction in novel marker for tumor progression, TKTL1, and increase of ketone body. Lactate concentration was reduced, and no significant changes were reported in the measurements of quality of life. Ketogenic diet may be efficacious in certain cancer subtypes whose outcomes appear to correlate with metabolic status, but the results are not yet supportive and inconsistent. Therefore, it warrants further studies. PMID- 29018776 TI - Impaired Cellular Energy Metabolism Contributes to Duck-Enteritis-Virus-Induced Autophagy via the AMPK-TSC2-MTOR Signaling Pathway. AB - Duck enteritis virus (DEV) is a large, complex double-stranded DNA virus that induces duck embryo fibroblast (DEF) cells autophagy, which is beneficial to its own replication, but the mechanism has not been described. In this study, we showed that impaired cell energy metabolism is involved in DEV-induced autophagy, whereby ATP synthesis is disrupted in cells after DEV infection, which causes metabolic stress and activation of autophagy. Methyl pyruvate (MP) inhibited conversion of LC3I to LC3II and accumulation of GFP-LC3, which could reverse the energy loss caused by DEV infection. Inhibition of DEV replication by MP confirmed the above view. We found that infection with DEV activated the metabolic regulator 5' AMP-activated kinase (AMPK) and inhibited activity of mechanistic target of rapamycin (mTOR). In the cases where AMPK expression was inhibited, the LC3-I conversion to LC3-II ratio was decreased, as was GFP-LC3 point and DEV replication; in addition, inhibition of p-mTOR showed a reverse trend. We also found that tuberous sclerosis (TSC) 2 was a key mediator between AMPK and mTOR through activation by phosphorylation. siRNA targeting TSC2 was transfected to reverse the inhibition of mTOR, and down-regulate autophagy level and DEV replication, but AMPK expression was not changed, while siRNA targeting AMPK inhibited activation of TSC2. In conclusion, our findings indicate that energy metabolism in cell damage induced by DEV contributes to autophagy via the AMPK-TSC2-MTOR signaling pathway, which provides a new perspective for DEV and host interactions. PMID- 29018771 TI - Targeting Nucleotide Biosynthesis: A Strategy for Improving the Oncolytic Potential of DNA Viruses. AB - The rapid growth of tumors depends upon elevated levels of dNTPs, and while dNTP concentrations are tightly regulated in normal cells, this control is often lost in transformed cells. This feature of cancer cells has been used to advantage to develop oncolytic DNA viruses. DNA viruses employ many different mechanisms to increase dNTP levels in infected cells, because the low concentration of dNTPs found in non-cycling cells can inhibit virus replication. By disrupting the virus encoded gene(s) that normally promote dNTP biosynthesis, one can assemble oncolytic versions of these agents that replicate selectively in cancer cells. This review covers the pathways involved in dNTP production, how they are dysregulated in cancer cells, and the various approaches that have been used to exploit this biology to improve the tumor specificity of oncolytic viruses. In particular, we compare and contrast the ways that the different types of oncolytic virus candidates can directly modulate these processes. We limit our review to the large DNA viruses that naturally encode homologs of the cellular enzymes that catalyze dNTP biogenesis. Lastly, we consider how this knowledge might guide future development of oncolytic viruses. PMID- 29018773 TI - Activity of Bacteriophages in Removing Biofilms of Pseudomonas aeruginosa Isolates from Chronic Rhinosinusitis Patients. AB - Introduction:Pseudomonas aeruginosa infections are prevalent amongst chronic rhinosinusitis (CRS) sufferers. Many P. aeruginosa strains form biofilms, leading to treatment failure. Lytic bacteriophages (phages) are viruses that infect, replicate within, and lyse bacteria, causing bacterial death. Aim: To assess the activity of a phage cocktail in eradicating biofilms of ex vivo P.aeruginosa isolates from CRS patients. Methods: P. aeruginosa isolates from CRS patients with and without cystic fibrosis (CF) across three continents were multi-locus sequence typed and tested for antibiotic resistance. Biofilms grown in vitro were treated with a cocktail of four phages (CT-PA). Biofilm biomass was measured after 24 and 48 h, using a crystal violet assay. Phage titrations were performed to confirm replication of the phages. A linear mixed effects model was applied to assess the effects of treatment, time, CF status, and multidrug resistance on the biomass of the biofilm. Results: The isolates included 44 strain types. CT-PA treatment significantly reduced biofilm biomass at both 24 and 48 h post treatment (p < 0.0001), regardless of CF status or antibiotic resistance. Biomass was decreased by a median of 76% at 48 h. Decrease in biofilm was accompanied by a rise in phage titres for all except one strain. Conclusion: A single dose of phages is able to significantly reduce biofilms formed in vitro by a range of P.aeruginosa isolates from CRS patients. This represents an exciting potential and novel targeted treatment for P. aeruginosa biofilm infections and multidrug resistant bacteria. PMID- 29018775 TI - Giardia's Epithelial Cell Interaction In Vitro: Mimicking Asymptomatic Infection? AB - The protozoan parasite Giardia duodenalis is responsible for more than 280 million cases of gastrointestinal complaints ("giardiasis") every year, worldwide. Infections are acquired orally, mostly via uptake of cysts in contaminated drinking water. After transformation into the trophozoite stage, parasites start to colonize the duodenum and upper jejunum where they attach to the intestinal epithelium and replicate vegetatively. Outcome of Giardia infections vary between individuals, from self-limiting to chronic, and asymptomatic to severely symptomatic infection, with unspecific gastrointestinal complaints. One proposed mechanism for pathogenesis is the breakdown of intestinal barrier function. This has been studied by analyzing trans-epithelial electric resistances (TEER) or by indicators of epithelial permeability using labeled sugar compounds in in vitro cell culture systems, mouse models or human biopsies and epidemiological studies. Here, we discuss the results obtained mainly with epithelial cell models to highlight contradictory findings. We relate published studies to our own findings that suggest a lack of barrier compromising activities of recent G. duodenalis isolates of assemblage A, B, and E in a Caco-2 model system. We propose that this epithelial cell model be viewed as mimicking asymptomatic infection. This view will likely lead to a more informative use of the model if emphasis is shifted from aiming to identify Giardia virulence factors to defining non-parasite factors that arguably appear to be more decisive for disease. PMID- 29018778 TI - Cancer-preventive Properties of an Anthocyanin-enriched Sweet Potato in the APCMIN Mouse Model. AB - BACKGROUND: Anthocyanin-rich foods and preparations have been reported to reduce the risk of life-style related diseases, including cancer. The SL222 sweet potato, a purple-fleshed cultivar developed in New Zealand, accumulates high levels of anthocyanins in its storage root. METHODS: We examined the chemopreventative properties of the SL222 sweet potato in the C57BL/6J-APC MIN/+ (APCMIN) mouse, a genetic model of colorectal cancer. APCMIN and C57BL/6J wild type mice (n=160) were divided into four feeding groups consuming diets containing 10% SL222 sweet potato flesh, 10% SL222 sweet potato skin, or 0.12% ARE (Anthocyanin rich-extract prepared from SL222 sweet potato at a concentration equivalent to the flesh-supplemented diet) or a control diet (AIN-76A) for 18 weeks. At 120 days of age, the mice were anaesthetised, and blood samples were collected before the mice were sacrificed. The intestines were used for adenoma enumeration. RESULTS: The SL222 sweet potato-supplemented diets reduced the adenoma number in the APCMIN mice. CONCLUSIONS: These data have significant implications for the use of this sweet potato variant in protection against colorectal cancer. PMID- 29018779 TI - Differential Tissue-specific and Pathway-specific Anti-obesity Effects of Green Tea and Taeumjowitang, a Traditional Korean Medicine, in Mice. AB - BACKGROUND: Traditional medicines have been leveraged for the treatment and prevention of obesity, one of the fastest growing diseases in the world. However, the exact mechanisms underlying the effects of traditional medicine on obesity are not yet fully understood. METHODS: We produced the transcriptomes of epididymal white adipose tissue (eWAT), liver, muscle, and hypothalamus harvested from mice fed a normal diet, high-fat-diet alone, high-fat-diet together with green tea, or a high-fat-diet together with Taeumjowitang, a traditional Korean medicine. RESULTS: We found tissue-specific gene expression patterns as follows: (i) the eWAT transcriptome was more significantly altered by Taeumjowitang than by green tea, (ii) the liver transcriptome was similarly altered by Taeumjowitang and green tea, and (iii) both the muscle and hypothalamus transcriptomes were more significantly altered by green tea than Taeumjowitang. We then applied integrated network analyses, which revealed that functional networks associated with lymphocyte activation were more effectively regulated by Taeumjowitang than by green tea in the eWAT. In contrast, green tea was a more effective regulator of functional networks associated with glucose metabolic processes in the eWAT. CONCLUSIONS: Taeumjowitang and green tea have a differential tissue-specific and pathway-specific therapeutic effect on obesity. PMID- 29018781 TI - Association Between Health Behaviors and Family History of Cancer in Cancer Survivors: Data From the Korean Genome and Epidemiology Study. AB - BACKGROUND: We compared health behaviors, including current smoking, alcohol drinking, regular exercise, obesity, and abdominal obesity, among Korean cancer survivors with and without family history of cancer. METHODS: This study included 5,247 cancer survivors with family history of cancer (1,894 with and 3,353 without), who were recruited from the Health Examinee cohort. Health behaviors were identified using questionnaire. Adjusted ORs (aORs) between health behaviors and family history of cancer were estimated by multivariate logistic regression analysis adjusted for sociodemographic factors. All analyses were conducted separately according to sex. RESULTS: Prevalence of current smoking, alcohol drinking, no regular exercise, obesity, and abdominal obesity was 16.3%, 48.3%, 36.0%, 31.3%, and 42.3% in male cancer survivors and 1.7%, 20.6%, 43.8%, 28.5%, and 72.5% in female, respectively. Health behaviors in male cancer survivors with and without family history of cancer were not significantly different after being adjusted for other covariates (aOR = 1.04, 95% CI = 0.75-1.44 for current smoking; aOR = 0.96, 95% CI = 0.76-1.22 for current drinking; aOR = 0.85, 95% CI = 0.66-1.10 for regular exercise; aOR = 0.96, 95% CI = 0.73-1.25 for obesity; aOR = 0.97, 95% CI = 0.75-1.25 for abdominal obesity). In female cancer survivors, there were no significant differences in health behaviors according to family history of cancer (aOR = 0.76, 95% CI = 0.44-1.32; aOR = 1.11, 95% CI = 0.94 1.31; aOR = 0.99, 95% CI = 0.87-1.14; aOR = 0.99, 95% CI = 0.85-1.16; aOR = 0.93, 95% CI = 0.80-1.10, respectively). CONCLUSIONS: We identified no significant differences in health behaviors according to family history of cancer in cancer survivors. More studies should be conducted to identify correlations between family history of cancer and prognosis in cancer survivors. PMID- 29018782 TI - Comparison of Blueberry (Vaccinium spp.) and Vitamin C via Antioxidative and Epigenetic Effects in Human. AB - BACKGROUND: Chemopreventive effects and the underlying mechanisms of blueberry (Vaccinium spp.) are not clearly understood in human. We hypothesized blueberry would work via antioxidative and epigenetic modulation, which is similar to vitamin C. METHODS: We performed a pilot and non-inferiority study in healthy young women (n = 12), who consumed vitamin C (1 g/d) or 240 mL of blueberry juice (total polyphenols 300 mg and proanthocyanidin 76 mg/d) for 2 weeks. We analyzed 8-hydroxydeoxyguanosine (8-OHdG) and malondialdehyde (MDA) levels in their urine, and global and specific DNA methylation at the NAD(P)H quinone oxidoreductase 1 (NQO1), methylenetetrahydrofolate reductase (MTHFR), or DNA methyltransferase 1 (DNMT1) genes in their blood. RESULTS: Urinary 8-OHdG levels were reduced by blueberry consumption rather than by vitamin C. The methylation (%) of the MTHFR was significantly decreased in blueberry-consumers and the antioxidant susceptible subgroup, whose urinary MDA levels were decreased by the intervention. We also found a positive correlation between changes of urinary 8 OHdG and of DNA methylation at the MTHFR or the DNMT1 (P < 0.05). However, the genetic polymorphism of the MTHFR (C677T in exon 4) did not affect any above markers. CONCLUSIONS: Blueberry juice shows similar anti-oxidative or anti premutagenic activity to vitamin C and the potential as a methylation inhibitor for the MTHFR and the DNMT1 in human. PMID- 29018780 TI - Comparison of Colonoscopy Surveillance Outcomes Between Young and Older Colorectal Cancer Patients. AB - BACKGROUND: Young-onset colorectal cancer is uncommon, but the incidence is increasing. Despite several guidelines for colonoscopic surveillance following colorectal cancer resection, there is little consistency regarding the timing and age-adjusted strategies of surveillance colonoscopy after surgery of young-onset colorectal cancer. The aim of this study was to compare the outcomes of surveillance colonoscopy between sporadic colorectal cancer patients with young and older age after curative resection. METHODS: We retrospectively reviewed 569 colorectal cancer patients who underwent curative resection between January 2006 and December 2010. The primary outcome was comparison of the development of metachronous advanced neoplasia during surveillance colonoscopy between young and older colorectal cancer patients. RESULTS: There were 95 patients in the young age group and 474 patients in the older age group. The mean time interval from surgery to the development of metachronous advanced neoplasia was 99.2 +/- 3.7 months in the young age group and 84.4 +/- 2.5 months in the old age group (P = 0.03). In the multivariate analysis, age (OR, 3.56; P = 0.04) and family history of colorectal cancer (OR, 2.66; P = 0.008) were associated with the development of metachronous advanced neoplasia. None of the young patients without both family history of colorectal cancer and high-risk findings at index colonoscopy showed advanced neoplasia during the follow-up period. CONCLUSIONS: Age and family history of colorectal cancer are independent risk factors for the occurrence of advanced neoplasia after curative colorectal cancer resection, suggesting age-adjusted strategies of surveillance colonoscopy. PMID- 29018783 TI - Effects of Erythrocyte Membrane Polyunsaturated Fatty Acids in Overweight, Obese, and Morbidly Obese Korean Women. AB - BACKGROUND: The levels of erythrocyte polyunsaturated fatty acids (FAs) may be associated with obesity, metabolic syndrome, and cancer. Thus, we investigated the association between erythrocyte n-3 and n-6 FA composition, body mass index (BMI), and biochemical profiles. METHODS: The body composition, dietary intake, and blood parameters, including serum lipid, glucose, insulin, adipokines, oxidative stress, and erythrocyte FA, were assessed in 66 overweight and obese women (average age, 43.4 years). We also classified the participants into the overweight, obese, and morbidly obese (MO) groups based on the BMI values of 23, 25, and 30 kg/m2, respectively. Erythrocyte FA was measured via gas chromatography. RESULTS: The serum glucose, triglyceride, total cholesterol, and low-density lipoprotein cholesterol levels of the participants in the overweight, obese, and MO groups were not significantly different. However, the serum insulin, high-density lipoprotein, cholesterol and leptin levels were significantly different. The erythrocyte n-6/n-3 ratios of the overweight, obese, and MO groups were 2.4, 2.5, and 2.8, respectively. These data were consistent with the dietary n-6/n-3 ratio findings. Moreover, the erythrocyte n-6/n-3 ratio was correlated with serum insulin levels. CONCLUSIONS: As the severity of obesity increased, the levels of insulin and leptin and the ratio of dietary n-6/n-3 increased, which was consistent with erythrocyte FA. These results indicate that erythrocyte FA may be a predictive biomarker for the increased prevalence of obesity, insulin resistance, leptin resistance, and risk of developing metabolic disorders. PMID- 29018784 TI - Peroxisome Proliferator-activated Receptor-gamma Inhibits the Activation of STAT3 in Cerulein-stimulated Pancreatic Acinar Cells. AB - Cerulein-induced pancreatitis is similar to human edematous pancreatitis, characterized by the dysregulation of digestive enzyme production, edema formation, and an infiltration of inflammatory cells into the pancreas. We previously showed that the Janus kinase 2 (JAK2)/STAT3 pathway mediates inflammatory signaling in cerulein-stimulated pancreatic acinar cells. PPAR-gamma has been implicated in the regulation of inflammatory responses in several cells. In the present study, we investigated the role of PPAR-gamma in cerulein-induced activation of JAK2/STAT3 in pancreatic acinar cells. Treatment with cerulein induced the activation of JAK2/STAT3 and PPAR-gamma expression in AR42J cells. Cerulein-induced PPAR-gamma expression was inhibited by AG490, a JAK2/STAT3 inhibitor, in AR42J cells. An immunoprecipitation analysis showed that PPAR-gamma binds to STAT3 in cerulein-stimulated AR42J cells. Down-regulation of PPAR-gamma by siRNA increased STAT3 phosphorylation in AR42J cells stimulated with cerulein. These results show that PPAR-gamma inactivates STAT3 by directly interacting with STAT3 in cerulein-stimulated pancreatic acinar cells. Overexpression of PPAR gamma may be beneficial for preventing pancreatitis by suppressing the activation of STAT3 in pancreatic acinar cells. PMID- 29018785 TI - Regulation of Inflammation by Sucrose Isomer, Turanose, in Raw 264.7 Cells. AB - Increased sugar consumption has been proposed to be a risk factor for obesity related metabolic disorders. The objective of this study was to investigate the anti-inflammatory effect of turanose in Raw 264.7 macrophages. Turanose (3-O alpha-D-glucosyl-D-fructose), an isomer of sucrose, naturally exists in honey. For these studies, macrophages were treated with total glucose (Glu), 50% Glu/50% turanose (T50), 25% Glu/75% turanose (T75), and 100% turanose (T100), each with a total concentration of 25 mM in cell media. Expressions of inflammatory enzymes and cytokines were analyzed. Cell viability was not affected in the turanose treated groups compared to the Glu group. Lipopolysaccharide and glucose-induced nitric oxide production, protein expression of inducible nitric oxide synthase, COX-2, and superoxide dismutase 2, and mRNA expression levels of interleukin (IL) 1beta and IL-18 were significantly suppressed by turanose treatment. These results demonstrate that turanose exerts anti-inflammatory effects in vitro, and possesses potential to serve therapeutic functional sweetener for testing in vivo and in clinical trials. PMID- 29018786 TI - Hypoglossal nerve stimulation for treatment of obstructive sleep apnea (OSA): a primer for oral and maxillofacial surgeons. AB - The prevalence of obstructive sleep apnea (OSA) is estimated to be 1-5% of the adult population world-wide, and in Korea, it is reported at 4.5% of men and 3.2% of women (Age 40 to 69 years old). Active treatment of OSA is associated with decrease in insulin resistance, cardiovascular disease, psychosocial problems, and mortality. Surgical treatment of OSA has evolved in the era of neuromodulation with the advent of hypoglossal nerve stimulation (HGNS). We share this review of HGNS with our maxillofacial surgical colleagues to expand the scope of surgical care for OSA. PMID- 29018788 TI - Transition from Laparotomy to Laparoscopic Repair of Congenital Duodenal Obstruction in Neonates: Our Early Experience. AB - BACKGROUND: The aim of this report was to review our early experience of the last 7 years with repairs of congenital duodenal obstruction (CDO) to determine the efficacy and outcomes of laparoscopic repairs compared to laparotomy. METHODS: A retrospective review was conducted on all neonate (<30 days) with CDO between 2009 and 2015. Patients with duodenal atresia, stenosis, web, and annular pancreas were included. Patients with only malrotation or delayed presentation were excluded. RESULTS: Twenty-six neonates underwent laparoscopy and 30 underwent traditional laparotomy. The operative time was longer in the laparoscopic group (P = 0.001), but time to initiation of feeds and time to full feeds were similar for the laparoscopic and open groups. There was no mortality, anastomosis leakage, or stenosis in the laparoscopic group. Six laparoscopic cases required conversion to an open procedure (23%). In the earlier cases, the open conversion rate was high, but it decreased over time (P = 0.003). CONCLUSION: Laparoscopic repair is safe and effective for repair of CDO in neonates. Despite operative time was slightly longer in the laparoscopic group, clinical outcomes remained similar to the open group. For pediatric surgeon with experience in laparoscopic techniques, laparoscopic duodenoduodenostomy is a sufficient available procedure. PMID- 29018789 TI - Cost-Effectiveness of a Family Planning Voucher Program in Rural Pakistan. AB - INTRODUCTION: This study reports on the effectiveness and efficiency from the program funder's perspective of the Suraj Social Franchise (SSF) voucher program in which private health-care providers in remote rural areas were identified, trained, upgraded, and certified to deliver family planning services to underserved women of reproductive age in 29 districts of Sindh and 3 districts of Punjab province, Pakistan between October 2013 and June 2016. METHOD: A decision tree compared the cost of implementing SSF to the program funder and its effects of providing additional couple years of protection (CYPs) to targeted women, compared to business-as-usual. Costs included vouchers given to women to receive a free contraceptive method of their choice from the SSF provider. The vouchers were then reimbursed to the SSF provider by the program. RESULTS: A total of 168,206 married women of reproductive age (MWRA) received SSF vouchers between October 2013 and June 2016, costing $3,278,000 ($19.50/recipient). The average effectiveness of the program per voucher recipient was an additional 1.66 CYPs, giving an incremental cost-effectiveness of the program of $4.28 per CYP compared to not having the program (95% CI: $3.62-5.31). CONCLUSION: The result compares favorably to other interventions with similar objectives and appears affordable for the Pakistan national health-care system. It is therefore recommended to help address the unmet need for contraception among MWRA in these areas of Pakistan and is worthy of trial implementation in the country more widely. PMID- 29018787 TI - Cesarean Section, Formula Feeding, and Infant Antibiotic Exposure: Separate and Combined Impacts on Gut Microbial Changes in Later Infancy. AB - Established during infancy, our complex gut microbial community is shaped by medical interventions and societal preferences, such as cesarean section, formula feeding, and antibiotic use. We undertook this study to apply the significance analysis of microarrays (SAM) method to quantify changes in gut microbial composition during later infancy following the most common birth and postnatal exposures affecting infant gut microbial composition. Gut microbiota of 166 full term infants in the Canadian Healthy Infant Longitudinal Development birth cohort were profiled using 16S high-throughput gene sequencing. Infants were placed into groups according to mutually exclusive combinations of birth mode (vaginal/cesarean birth), breastfeeding status (yes/no), and antibiotic use (yes/no) by 3 months of age. Based on repeated permutations of data and adjustment for the false discovery rate, the SAM statistic identified statistically significant changes in gut microbial abundance between 3 months and 1 year of age within each infant group. We observed well-known patterns of microbial phyla succession in later infancy (declining Proteobacteria; increasing Firmicutes and Bacteroidetes) following vaginal birth, breastfeeding, and no antibiotic exposure. Genus Lactobacillus, Roseburia, and Faecalibacterium species appeared in the top 10 increases to microbial abundance in these infants. Deviations from this pattern were evident among infants with other perinatal co exposures; notably, the largest number of microbial species with unchanged abundance was seen in gut microbiota following early cessation of breastfeeding in infants. With and without antibiotic exposure, the absence of a breast milk diet by 3 months of age following vaginal birth yielded a higher proportion of unchanged abundance of Bacteroidaceae and Enterobacteriaceae in later infancy, and a higher ratio of unchanged Enterobacteriaceae to Alcaligenaceae microbiota. Gut microbiota of infants born vaginally and exclusively formula fed became less enriched with family Veillonellaceae and Clostridiaceae, showed unchanging levels of Ruminococcaceae, and exhibited a greater decline in the Rikenellaceae/Bacteroidaceae ratio compared to their breastfed, vaginally delivered counterparts. These changes were also evident in cesarean-delivered infants to a lesser extent. The clinical relevance of these trajectories of microbial change is that they culminate in taxon-specific abundances in the gut microbiota of later infancy, which we and others have observed to be associated with food sensitization. PMID- 29018790 TI - Synergistic Effects of Unintended Pregnancy and Young Motherhood on Shaking and Smothering of Infants among Caregivers in Nagoya City, Japan. AB - BACKGROUND: Shaking and smothering in response to infant crying are forms of child abuse that often result in death. Unintended pregnancy and young motherhood are risk factors of such child maltreatment that are often comorbid, few studies have examined their synergistic effect on shaking and smothering of infants. We examined the synergistic effects of unintended pregnancy and young motherhood on shaking and smothering among caregivers of infants in Japan. METHODS: In this retrospective cohort study, a questionnaire was administered to caregivers enrolled for a health check for 3- to 4-month-old infants between October 2013 and February 2014 in Nagoya City, Japan. The questionnaire data were linked to those from pregnancy notification forms registered at municipalities and included information on women's age and feelings about their pregnancy (N = 4,159). Data were analyzed using logistic regression analysis in 2016. RESULTS: Shaking and smothering of 3- to 4-month-old infants occurred at least once in the past month in 2.0 and 1.5% of cases, respectively. Of all participants, 24.8% reported unintended pregnancy while 7.3% were younger than 25 years old. Infants of young mothers (under 25 years old) with unintended pregnancy were 2.77 [95% confidence interval (CI): 1.15-6.68] and 5.61 (95% CI: 2.40-13.1) times more likely to be shaken and smothered, respectively, than those of older mothers with intended pregnancy. In addition, the odds ratio of young mothers with unintended pregnancy regarding smothering was significantly higher than that of older mothers with unintended pregnancy (odds ratio: 2.12; p = 0.02). CONCLUSION: Our findings suggest a synergistic effect of unintended pregnancy and young motherhood on smothering. Infants of young mothers with unintended pregnancy are at greater risk of abuse, especially smothering. Prevention strategies are required for young women with unintended pregnancies. PMID- 29018791 TI - A Novel Multiplayer Screen-Based Simulation Experience for African Learners Improved Confidence in Management of Postpartum Hemorrhage. AB - INTRODUCTION: Postpartum hemorrhage (PPH) remains a global challenge, affecting thirteen million women each year. In addition, PPH is a leading cause of maternal mortality in Asia and Africa. In the U.S.A., care of critically ill patients is often practiced using mannequin-based simulation. Mannequin-based simulation presents challenges in global health, particularly in low- or middle-income countries. We developed a novel multiplayer screen-based simulation in a virtual world enabling the practice of team coordination with PPH. We used this simulation with learners in Mulago, Uganda. We hypothesized that a multiplayer screen-based simulation experience would increase learner confidence in their ability to manage PPH. METHODS: The study design was a simple pre- and a post intervention survey. Forty-eight interprofessional subjects participated in one of nine 1-h simulation sessions using the PPH software. A fifteen-question self assessment administered before and after the intervention was designed to probe the areas of learning as defined by Bloom and Krathwohl: affective, cognitive, and psychomotor. RESULTS: Combined confidence scores increased significantly overall following the simulation experience and individually in each of the three categories of Bloom's Taxonomy: affective, cognitive, and psychomotor. CONCLUSION: We provide preliminary evidence that multiplayer screen-based simulation represents a scalable, distributable form of learning that may be used effectively in global health education and training. Interestingly, despite our intervention being screen-based, our subjects showed improved confidence in their ability to perform psychomotor tasks. Although there is precedent for mental rehearsal improving performance, further research is needed to understand this finding. PMID- 29018792 TI - Editorial: Evidence-Based Public Health: Why, What and How. PMID- 29018793 TI - The Risk of Hypertension and Other Chronic Diseases: Comparing Smokeless Tobacco with Smoking. AB - BACKGROUND: In the past, studies have compared smokeless tobacco and non-tobacco users for the risk of various chronic diseases. The differences in the risk of chronic diseases between smokeless tobacco user and smokers have not been explored. The objective of this study is to estimate the risk of chronic diseases among smokeless tobacco users compared to smokers. METHODS: The data were used from the Study on Global Ageing and Adult Health (SAGE) Wave-1, conducted in 2007 2008 in India. The study sample is the respondents who reported consuming any form of tobacco in last 1 month. The total sample size was 4,038 respondents. The odds ratio of chronic morbidities was estimated taking smokers as the reference category. RESULTS: The odds ratios for (self-reported) diabetes, asthma, and hypertension were not significant for smokeless tobacco user compared to smoked tobacco users. The odds ratio of chronic lung diseases (CLDs) was significantly lower among smokeless tobacco users compared to smoked tobacco users. The odds ratio of hypertension (measured) combined with low education and belonging to lowest wealth quintiles were not significant for smokeless tobacco users compared to smoked tobacco users. Duration of the use of smokeless tobacco and quantity of use was found to have no significant relation with risk of chronic diseases as compared to smoking. CONCLUSION: This study did not find the significantly higher risk of chronic morbidities except for CLD for smokeless tobacco users compared to smoked tobacco users. The study suggests that the use of any form of tobacco may have a similar risk of chronic diseases. PMID- 29018794 TI - Synergistic Catalysis by "Polymeric Microzymes and Inorganic Nanozymes": The 1+1>2 Effect for Intramolecular Cyclization of Peptides. AB - In this work, we developed an efficient "molecularly imprinted polymer microzymes and inorganic magnetic nanozymes" synergistic catalysis strategy for the formation of disulfide bonds in peptides. The polymeric microzymes showed excellent selectivity toward the template peptide as well as the main reactant (linear peptide), and the Fe3O4 magnetic nanoparticle (MNP) nanozymes inhibited the intermolecular reaction during the formation of disulfide bonds in peptides. As a result, the integration of the two different artificial enzymes in one process facilitates the intramolecular cyclization in high product yields (59.3%) with excellent selectivity. Mechanism study indicates the synergistic effect was occurred by using a "reversed solid phase synthesis" strategy with an enhanced shift of reaction balance to product generation. We believe the synergistic catalysis by "polymeric microzymes and inorganic nanozymes" presented in the present work may open new opportunities in creation of multifunctional enzyme mimics for sensing, imaging, and drug delivery. PMID- 29018795 TI - Poly(Ionic Liquid) Based Chemosensors for Detection of Basic Amino Acids in Aqueous Medium. AB - Naked-eye detection of amino acids (AA) in water is of great significance in the field of bioanalytical applications. Herein, polymerized ionic liquids (PILs) with controlled chain length structures were synthesized via reversible addition fragmentation chain-transfer (RAFT) polymerization and post-quaternization approach. The AA recognition performance of PILs with different alkyl chain lengths and molecular weights was evaluated by naked-eye color change and ultraviolet-visible (UV-vis) spectral studies. These PILs were successfully used for highly sensitive and selective detection of Arg, Lys, and His in water. The recognition performance was improved effectively with increased molecular weight of PILs. The biosensitivity of the PILs in water was strongly dependent on their aggregation effect and polarization effect. Highly sensitive and selective detection of AA was successfully accomplished by introducing positively charged pyridinium moieties and controlled RAFT radical polymerization. PMID- 29018796 TI - Novel Carbonyl Analogs of Tamoxifen: Design, Synthesis, and Biological Evaluation. AB - Aim of this work was to provide tamoxifen analogs with enhanced estrogen receptor (ER) binding affinity. Hence, several derivatives were prepared using an efficient triarylethylenes synthetic protocol. The novel compounds bioactivity was evaluated through the determination of their receptor binding affinity and their agonist/antagonist activity against breast cancer tissue using a MCF-7 cell based assay. Phenyl esters 6a,b and 8a,b exhibited binding affinity to both ERalpha and ERbeta higher than 4-hydroxytamoxifen while compounds 13 and 14 have shown cellular antiestrogenic activity similar to 4-hydroxytamoxifen and the known ER inhibitor ICI182,780. Theoretical calculations and molecular modeling were applied to investigate, support and explain the biological profile of the new compounds. The relevant data indicated an agreement between calculations and demonstrated biological activity allowing to extract useful structure-activity relationships. Results herein underline that modifications of tamoxifen structure still provide molecules with substantial activity, as portrayed in the inhibition of MCF-7 cells proliferation. PMID- 29018798 TI - TAFRO Syndrome in Caucasians: A Case Report and Review of the Literature. AB - BACKGROUND: TAFRO syndrome has been reported in Japan among human herpesvirus 8 (HHV-8)-negative/idiopathic multicentric Castleman's disease (iMCD) patients. To date, the majority of iMCD patients with TAFRO syndrome originate from Japan. CASE PRESENTATION: Herein, we report a 67-year-old HIV/HHV-8-negative Caucasian iMCD patient diagnosed with TAFRO. He presented with marked systemic inflammation, bicytopenia, terminal renal insufficiency, diffuse lymphadenopathies, and anasarca. Lymph node and bone marrow biopsies revealed atrophic germinal centers variably hyalinized and megakaryocytic hyperplasia with mild myelofibrosis. Several other biopsies performed in kidneys, liver, gastrointestinal tract, prostate, and lungs revealed unspecific chronic inflammation. The patient had a complete response to corticosteroids, tocilizumab, and rituximab. He relapsed twice following discontinuation of rituximab. When reviewing the literature, we found seven other Caucasian cases with TAFRO syndrome. There were no significant differences with those described by the Japanese cohort except for the higher frequency of kidney failure and auto antibodies in Western patients. CONCLUSION: This case illustrates that patients with TAFRO syndrome can develop non-specific inflammation in several tissue sites. Furthermore, this case and our review of the literature demonstrate that TAFRO syndrome can affect Caucasian and Japanese patients highlighting the importance of evaluating for this syndrome independently of ethnic background. PMID- 29018799 TI - TruSeq-Based Gene Expression Analysis of Formalin-Fixed Paraffin-Embedded (FFPE) Cutaneous T-Cell Lymphoma Samples: Subgroup Analysis Results and Elucidation of Biases from FFPE Sample Processing on the TruSeq Platform. AB - Cutaneous T-cell lymphomas (CTCLs) are a heterogeneous group of malignancies with courses ranging from indolent to potentially lethal. We recently studied in a 157 patient cohort gene expression profiles generated by the TruSeq targeted RNA gene expression sequencing. We observed that the sequencing library quality and depth from formalin-fixed paraffin-embedded (FFPE) skin samples were significantly lower when biopsies were obtained prior to 2009. We also observed that the fresh CTCL samples clustered together, even though they included stage I-IV disease. In this study, we compared TruSeq gene expression patterns in older (<=2008) vs. more recent (>=2009) FFPE samples to determine whether these clustering analyses and earlier described differentially expressed gene findings are robust when analyzed based on the year of biopsy. We also explored biases found in FFPE samples when subjected to the TruSeq analysis of gene expression. Our results showed that <=2008 and >=2009 samples clustered equally well to the full data set and, importantly, both analyses produced nearly identical trends and findings. Specifically, both analyses enriched nearly identical DEGs when comparing benign vs. (1) stage I-IV and (2) stage IV (alone) CTCL samples. Results obtained using either <=2008 or >=2009 samples were strongly correlated. Furthermore, by using subgroup analyses, we were able to identify additional novel differentially expressed genes (DEGs), which did not reach statistical significance in the prior full data set analysis. Those included CTCL-upregulated BCL11A, SELL, IRF1, SMAD1, CASP1, BIRC5, and MAX and CTCL-downregulated MDM4, SERPINB3, and THBS4 genes. With respect to sample biases, no matter if we performed subgroup analyses or full data set analysis, fresh samples tightly clustered together. While principal component analysis revealed that fresh samples were spatially closer together, indicating some preprocessing batch effect, they remained in the proximity to other normal/benign and FFPE CTCL samples and were not clustering as outliers by themselves. Notably, this did not affect the determination of DEGs when analyzing >=2009 samples (fresh and FFPE biopsies) vs. >=2009 FFPE samples alone. PMID- 29018801 TI - Editorial: Factors Promoting Development of Fibrosis in Crohn's Disease. PMID- 29018800 TI - Asthma Endotypes and an Overview of Targeted Therapy for Asthma. AB - Guidelines for the management of severe asthma do not emphasize the measurement of the inflammatory component of airway disease to indicate appropriate treatments or to monitor response to treatment. Inflammation is a central component of asthma and contributes to symptoms, physiological, and structural abnormalities. It can be assessed by a number of endotyping strategies based on "omics" technology such as proteomics, transcriptomics, and metabolomics. It can also be assessed using simple cellular responses by quantitative cytometry in sputum. Bronchitis may be eosinophilic, neutrophilic, mixed-granulocytic, or paucigranulocytic (eosinophils and neutrophils not elevated). Eosinophilic bronchitis is usually a Type 2 (T2)-driven process and therefore a sputum eosinophilia of greater than 3% usually indicates a response to treatment with corticosteroids or novel therapies directed against T2 cytokines such as IL-4, IL 5, and IL-13. Neutrophilic bronchitis represents a non-T2-driven disease, which is generally a predictor of response to antibiotics and may be a predictor to therapies targeted at pathways that lead to neutrophil recruitment such as TNF, IL-1, IL-6, IL-8, IL-23, and IL-17. Paucigranulocytic disease may not warrant anti-inflammatory therapy. These patients, whose symptoms may be driven largely by airway hyper-responsiveness may benefit from smooth muscle-directed therapies such as bronchial thermoplasty or mast-cell directed therapies. This review will briefly summarize the current knowledge regarding "omics-based signatures" and cellular endotyping of severe asthma and give an overview of segmentation of asthma therapeutics guided by the endotype. PMID- 29018802 TI - Corrigendum: Effect of Underlying Renal Disease on Nutritional and Metabolic Profile of Older Adults with Reduced Renal Function. AB - [This corrects the article on p. 4 in vol. 4, PMID: 28367435.]. PMID- 29018797 TI - microRNAs Make the Call in Cancer Personalized Medicine. AB - Since their discovery and the advent of RNA interference, microRNAs have drawn enormous attention because of their ubiquitous involvement in cellular pathways from life to death, from metabolism to communication. It is also widely accepted that they possess an undeniable role in cancer both as tumor suppressors and tumor promoters modulating cell proliferation and migration, epithelial mesenchymal transition and tumor cell invasion and metastasis. Moreover, microRNAs can even affect the tumor surrounding environment influencing angiogenesis and immune system activation and recruitment. The tight association of microRNAs with several cancer-related processes makes them undoubtedly connected to the effect of specific cancer drugs inducing either resistance or sensitization. In this context, personalized medicine through microRNAs arose recently with the discovery of single nucleotide polymorphisms in the target binding sites, in the sequence of the microRNA itself or in microRNA biogenesis related genes, increasing risk, susceptibility and progression of multiple types of cancer in different sets of the population. The depicted scenario implies that the overall variation displayed by these small non-coding RNAs have an impact on patient-specific pharmacokinetics and pharmacodynamics of cancer drugs, pushing on a rising need of personalized treatment. Indeed, microRNAs from either tissues or liquid biopsies are also extensively studied as valuable biomarkers for disease early recognition, progression and prognosis. Despite microRNAs being intensively studied in recent years, a comprehensive review describing these topics all in one is missing. Here we report an up-to-date and critical summary of microRNAs as tools for better understanding personalized cancer biogenesis, evolution, diagnosis and treatment. PMID- 29018804 TI - Editorial: The Developments of Hybrid Surgical Strategies for Congenital Heart Disease. PMID- 29018803 TI - Etiology of Inguinal Hernias: A Comprehensive Review. AB - BACKGROUND: The etiology of inguinal hernias remains uncertain even though the lifetime risk of developing an inguinal hernia is 27% for men and 3% for women. The aim was to summarize the evidence on hernia etiology, with focus on differences between lateral and medial hernias. RESULTS: Lateral and medial hernias seem to have common as well as different etiologies. A patent processus vaginalis and increased cumulative mechanical exposure are risk factors for lateral hernias. Patients with medial hernias seem to have a more profoundly altered connective tissue architecture and homeostasis compared with patients with lateral hernias. However, connective tissue alteration may play a role in development of both subtypes. Inguinal hernias have a hereditary component with a complex inheritance pattern, and inguinal hernia susceptible genes have been identified that also are involved in connective tissue homeostasis. CONCLUSION: The etiology of lateral and medial hernias are at least partly different, but the final explanations are still lacking on certain areas. Further investigations of inguinal hernia genes may explain the altered connective tissue observed in patients with inguinal hernias. The precise mechanisms why processus vaginalis fails to obliterate in certain patients should also be clarified. Not all patients with a patent processus vaginalis develop a lateral hernia, but increased intraabdominal pressure appears to be a contributing factor. PMID- 29018805 TI - Insight into the Selectivity of the G7-18NATE Inhibitor Peptide for the Grb7-SH2 Domain Target. AB - Growth factor receptor bound protein 7 (Grb7) is an adaptor protein with established roles in the progression of both breast and pancreatic cancers. Through its C-terminal SH2 domain, Grb7 binds to phosphorylated tyrosine kinases to promote proliferative and migratory signaling. Here, we investigated the molecular basis for the specificity of a Grb7 SH2-domain targeted peptide inhibitor. We identified that arginine 462 in the BC loop is unique to Grb7 compared to Grb2, another SH2 domain bearing protein that shares the same consensus binding motif as Grb7. Using surface plasmon resonance we demonstrated that Grb7-SH2 binding to G7-18NATE is reduced 3.3-fold when the arginine is mutated to the corresponding Grb2 amino acid. The reverse mutation in Grb2-SH2 (serine to arginine), however, was insufficient to restore binding of G7-18NATE to Grb2-SH2. Further, using a microarray, we confirmed that G7-18NATE is specific for Grb7 over a panel of 79 SH2 domains, and identified that leucine at the betaD6 position may also be a requirement for Grb7-SH2 binding. This study provides insight into the specificity defining features of Grb7 for the inhibitor molecule G7-18NATE, that will assist in the development of improved Grb7 targeted inhibitors. PMID- 29018806 TI - A Simple PB/LIE Free Energy Function Accurately Predicts the Peptide Binding Specificity of the Tiam1 PDZ Domain. AB - PDZ domains generally bind short amino acid sequences at the C-terminus of target proteins, and short peptides can be used as inhibitors or model ligands. Here, we used experimental binding assays and molecular dynamics simulations to characterize 51 complexes involving the Tiam1 PDZ domain and to test the performance of a semi-empirical free energy function. The free energy function combined a Poisson-Boltzmann (PB) continuum electrostatic term, a van der Waals interaction energy, and a surface area term. Each term was empirically weighted, giving a Linear Interaction Energy or "PB/LIE" free energy. The model yielded a mean unsigned deviation of 0.43 kcal/mol and a Pearson correlation of 0.64 between experimental and computed free energies, which was superior to a Null model that assumes all complexes have the same affinity. Analyses of the models support several experimental observations that indicate the orientation of the alpha2 helix is a critical determinant for peptide specificity. The models were also used to predict binding free energies for nine new variants, corresponding to point mutants of the Syndecan1 and Caspr4 peptides. The predictions did not reveal improved binding; however, they suggest that an unnatural amino acid could be used to increase protease resistance and peptide lifetimes in vivo. The overall performance of the model should allow its use in the design of new PDZ ligands in the future. PMID- 29018807 TI - Listeria Occurrence in Poultry Flocks: Detection and Potential Implications. AB - Foodborne pathogens such as Salmonella, Campylobacter, Escherichia coli, and Listeria are a major concern within the food industry due to their pathogenic potential to cause infection. Of these, Listeria monocytogenes, possesses a high mortality rate (approximately 20%) and is considered one of the most dangerous foodborne pathogens. Although the usual reservoirs for Listeria transmission have been extensively studied, little is known about the relationship between Listeria and live poultry production. Sporadic and isolated cases of listeriosis have been attributed to poultry production and Listeria spp. have been isolated from all stages of poultry production and processing. Farm studies suggest that live birds may be an important vector and contributor to contamination of the processing environment and transmission of Listeria to consumers. Therefore, the purpose of this review is to highlight the occurrence, incidence, and potential systemic interactions of Listeria spp. with poultry. PMID- 29018808 TI - Tenogenically Induced Allogeneic Peripheral Blood Mesenchymal Stem Cells in Allogeneic Platelet-Rich Plasma: 2-Year Follow-up after Tendon or Ligament Treatment in Horses. AB - Poor healing of tendon and ligament lesions often results in early retirement of sport horses. Therefore, regenerative therapies are being explored as potentially promising treatment for these injuries. In this study, an intralesional injection was performed with allogeneic tenogenically induced mesenchymal stem cells and platelet-rich plasma 5-6 days after diagnosis of suspensory ligament (SL) (n = 68) or superficial digital flexor tendon (SDFT) (n = 36) lesion. Clinical, lameness and ultrasonographic evaluation was performed at 6 and 12 weeks. Moreover, a survey was performed 12 and 24 months after treatment to determine how many horses were competing at original level and how many were re-injured. At 6 weeks, 88.2% of SL (n = 68) and 97.3% of SDFT lesions (n = 36) demonstrated moderate ultrasonographic improvement. At 12 weeks, 93.1% of SL (n = 29) and 95.5% of SDFT lesions (n = 22) improved convincingly. Moreover, lameness was abolished in 78.6% of SL (n = 28) and 85.7% (n = 7) of SDFT horses at 12 weeks. After 12 months (n = 92), 11.8% of SL and 12.5% of SDFT horses were re-injured, whereas 83.8 of SL and 79.2% of SDFT returned to previous performance level. At 24 months (n = 89) after treatment, 82.4 (SL) and 85.7% (SDFT) of the horses returned to previous level of performance. A meta-analysis was performed on relevant published evidence evaluating re-injury 24 months after stem cell-based [17.6% of the SL and 14.3% of the SDFT group (n = 89)] versus conventional therapies. Cell therapies resulted in a significantly lower re-injury rate of 18% [95% confidence interval (CI), 0.11-0.25] 2 years after treatment compared to the 44% re-injury rate with conventional treatments (95% CI, 0.37-0.51) based on literature data (P < 0.0001). PMID- 29018809 TI - Growth Factor-Reinforced ECM Fabricated from Chemically Hypoxic MSC Sheet with Improved In Vivo Wound Repair Activity. AB - MSC treatment can promote cutaneous wound repair through multiple mechanisms, and paracrine mediators secreted by MSC are responsible for most of its therapeutic benefits. Recently, MSC sheet composed of live MSCs and their secreted ECMs was reported to promote wound healing; however, whether its ECM alone could accelerate wound closure remained unknown. In this study, Nc-ECM and Cc-ECM were prepared from nonconditioned and CoCl2-conditioned MSC sheets, respectively, and their wound healing properties were evaluated in a mouse model of full-thickness skin defect. Our results showed that Nc-ECM can significantly promote wound repair through early adipocyte recruitment, rapid reepithelialization, enhanced granulation tissue growth, and augmented angiogenesis. Moreover, conditioning of MSC sheet with CoCl2 dramatically enriched its ECM with collagen I, collagen III, TGF-beta1, VEGF, and bFGF via activation of HIF-1alpha and hence remarkably improved its ECM's in vivo wound healing potency. All the Cc-ECM-treated wounds completely healed on day 7, while Nc-ECM-treated wounds healed about 85.0% +/- 8.6%, and no-treatment wounds only healed 69.8% +/- 9.6% (p < 0.05). Therefore, we believe that such growth factor-reinforced ECM fabricated from chemically hypoxic MSC sheet has the potential for clinical translation and will lead to a MSC-derived, cost-effective, bankable biomaterial for wound management. PMID- 29018810 TI - Renaissance of Conventional First-Line Antibiotics in Salmonella enterica Clinical Isolates: Assessment of MICs for Therapeutic Antimicrobials in Enteric Fever Cases from Nepal. AB - Enteric fever caused by Salmonella enterica is a life-threatening systemic illness of gastrointestinal tract especially in tropical countries. Antimicrobial therapy is generally indicated but resistance towards commonly used antibiotics has limited their therapeutic usefulness. Therefore, we aimed to determine the antimicrobial susceptibility pattern by minimum inhibitory concentration method of common therapeutic regimens against Salmonella enterica from enteric fever clinical cases. Salmonella enterica clinical isolates recovered from the patients with suspected enteric fever whose blood samples were submitted to microbiology laboratory of Manmohan Memorial Community Hospital, Kathmandu, from March 2016 to August 2016, were studied. These isolates were subjected to antimicrobial susceptibility testing against common therapeutic antimicrobials by Kirby-Bauer disk diffusion method. The minimum inhibitory concentration of ciprofloxacin, azithromycin, chloramphenicol, and cefixime was determined by Agar dilution method based on the latest CLSI protocol. A total of 88 isolates of Salmonella enterica were recovered from blood samples of enteric fever cases. Out of them, 74 (84.09%) were Salmonella Typhi and 14 (15.91%) were Salmonella Paratyphi A. On Kirby-Bauer disk diffusion antimicrobial susceptibility testing, entire isolates were susceptible to cotrimoxazole, cefixime, ceftriaxone, azithromycin, and chloramphenicol. Sixty-four (72.7%) Salmonella enterica isolates were nalidixic acid resistant and nonsusceptible to ciprofloxacin and levofloxacin. On MIC determination, four Salmonella isolates were ciprofloxacin resistant with MIC 1 ug/ml and two isolates were ciprofloxacin intermediate with MIC 0.5 ug/ml. The MIC range of azithromycin was from 0.125 ug/ml to 2.0 ug/ml, whereas that for chloramphenicol was 2.0 ug/ml-8.0 ug/ml and for cefixime was 0.0075-0.5 ug/ml, respectively. Despite global surge of antimicrobial resistance among Salmonella enterica clinical isolates, the level of drug resistance in our study was not so high. However, higher level of NARST strains limits therapeutic use of fluoroquinolones and necessitates the routine monitoring of such resistance determinants in order to effectively and rationally manage enteric fever cases. PMID- 29018811 TI - High-Frequency EEG Variations in Children with Autism Spectrum Disorder during Human Faces Visualization. AB - Autism spectrum disorder (ASD) is a neuropsychiatric disorder characterized by the impairment in the social reciprocity, interaction/language, and behavior, with stereotypes and signs of sensory function deficits. Electroencephalography (EEG) is a well-established and noninvasive tool for neurophysiological characterization and monitoring of the brain electrical activity, able to identify abnormalities related to frequency range, connectivity, and lateralization of brain functions. This research aims to evidence quantitative differences in the frequency spectrum pattern between EEG signals of children with and without ASD during visualization of human faces in three different expressions: neutral, happy, and angry. Quantitative clinical evaluations, neuropsychological evaluation, and EEG of children with and without ASD were analyzed paired by age and gender. The results showed stronger activation in higher frequencies (above 30 Hz) in frontal, central, parietal, and occipital regions in the ASD group. This pattern of activation may correlate with developmental characteristics in the children with ASD. PMID- 29018813 TI - Cardiovascular Consequences of Repetitive Arousals over the Entire Sleep Duration. AB - OBJECTIVES: To explore the cardiovascular effects of nightlong repetitive arousals (RA). METHODS: Twenty healthy subjects participated in two consecutive sleep studies. The first one was free of intervention and the second study involved repetitive arousals induced by acoustical stimuli. Blood pressure, heart rate variability (HRV), arterial stiffness index (ASI), and serum markers including nitric oxide (NO), endothelin-1 (ET-1), C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha), and vascular endothelial growth factor (VEGF) were studied. RESULTS: RA led to overnight elevation in diastolic blood pressure (DBP) but not in systolic blood pressure (SBP). Regarding HRV, overnight increase in low frequency power (LF) and low frequency to high frequency ratio (LHR) and decrease in high frequency power (HF) were evident. The relative overnight differences in HF and LHR correlated with the amount of rapid-eye movement (REM) sleep. RA did not cause detectable change in either ASI or serum markers of interest. CONCLUSIONS: Nightlong RA alters the sympathovagal modulation significantly and this effect seems to be associated with the amount of REM sleep. Exposure to RA also causes an elevation in postsleep DBP. Disturbance to autonomic nervous system (ANS) may precede endothelial dysfunction and increased arterial stiffness as cardiovascular consequences of RA. PMID- 29018812 TI - Abeta Peptide Originated from Platelets Promises New Strategy in Anti-Alzheimer's Drug Development. AB - The amyloid beta (Abeta) peptide and its deposits in the brain are known to be implicated in the neurodegeneration that occurs during Alzheimer's disease (AD). Recently, alternative theories views concerning both the source of this peptide and its functions have been developed. It has been shown that, as in all other known types of amyloidosis, the production of Abeta originates in blood cells or cells related to blood plasma, from which it can then spread from the blood to inside the brain, with the greatest concentration around brain blood vessels. In this review, we summarize research progress in this new area and outline some future perspectives. While it is still unclear whether the main source of Abeta deposits in AD is the blood, the possibility of blocking the chain of reactions that lead to constant Abeta release from the blood to the brain may be exploited in an attempt to reduce the amyloid burden in AD. Solving the problem of Abeta accumulation in this way may provide an alternative strategy for developing anti AD drugs. PMID- 29018815 TI - Effect of Free Ammonia, Free Nitrous Acid, and Alkalinity on the Partial Nitrification of Pretreated Pig Slurry, Using an Alternating Oxic/Anoxic SBR. AB - The effect of free ammonia (NH3 or FA), free nitrous acid (HNO2 or FNA), and total alkalinity (TA) on the performance of a partial nitrification (PN) sequencing batch reactor (SBR) treating anaerobically pretreated pig slurry was studied. The SBR was operated under alternating oxic/anoxic (O/A) conditions and was fed during anoxic phases. This strategy allowed using organic matter to partially remove nitrite (NO2-) and nitrate (NO3-) generated during oxic phases. The desired NH4+ to NO2- ratio of 1.3 g N/g N was obtained when an Ammonium Loading Rate (ALR) of 0.09 g NH4+-N/L.d was applied. The system was operated at a solid retention time (SRT) of 15-20 d and dissolved oxygen (DO) levels higher than 3 mg O2/L during the whole operational period. PN mainly occurred caused by the inhibitory effect of FNA on nitrite oxidizing bacteria (NOB). Once HNO2 concentration was negligible, NH4+ was fully oxidized to NO3- in spite of the presence of FA. The use of biomass acclimated to ammonium as inoculum avoided a possible effect of FA on NOB activity. PMID- 29018814 TI - The Impact of Frailty on Morbidity and Mortality following Open Emergent Colectomies. AB - BACKGROUND: Elderly and frail patients undergo open emergency colectomies and are at greater risk for complications. The relationship between frailty and open emergent colectomies is yet unexplored. OBJECTIVE: The purpose of this study was to evaluate the relationship between frailty and outcomes after open emergent colorectal surgery. DESIGN: Using the American College of Surgeons National Quality Improvement Program database, a validated modified frailty index was used, along with logistic regression, to assess the relationship between frailty and outcomes. MAIN OUTCOME MEASURES: Outcomes included mortality (primary), Clavien-Dindo Complication Grade >3, reintubation, ventilator >48 hours, and reoperation (secondary). RESULTS: The rates for 30-day mortality, Clavien-Dindo Grade >3, reintubation, ventilator > 48 hours, and reoperation in our cohort were 16.6%, 36.9%, 8.6%, 23.9%, and 15.0%, respectively. There was a statistically significant increase in prevalence of all outcomes with increasing frailty. LIMITATIONS: A causal relationship between frailty and complications cannot be established in a retrospective analysis. Also, extrapolation of our data to reflect outcomes beyond 30 days must be done with caution. CONCLUSIONS: Frailty is a statistically significant predictor of mortality and morbidity after open emergent colectomies and can be used in an acute care setting. PMID- 29018817 TI - Balance Performance Is Task Specific in Older Adults. AB - Balance ability among the elderly is a key component in the activities of daily living and is divided into two types: static and dynamic. For clinicians who wish to assess the risk of falling among their elderly patients, it is unclear if more than one type of balance test can be used to measure their balance impairment. In this study, we examined the association between static balance measures and two dynamic balance field tests. One hundred and twelve community-dwelling older adults (mean age 74.6) participated in the study. They underwent the Tetrax static postural assessment and then performed the Timed Up and Go (TUG) and the Functional Reach (FR) Test as dynamic balance tests. In general, low-moderate correlations were found between the two types of balance tests. For women, age and static balance parameters explained 28.1-40.4% of the variance of TUG scores and 14.6-24% of the variance of FR scores. For men, age and static balance parameters explained 9.5-31.2% of the variance of TUG scores and 23.9-41.7% of the variance of FR scores. Based on our findings, it is suggested that a combination of both static and dynamic tests be used for assessing postural balance ability. PMID- 29018816 TI - Comparative Evaluation between Sulfasalazine Alone and in Combination with Herbal Medicine on DSS-Induced Ulcerative Colitis Mice. AB - The present study aimed to investigate the comparative evaluation of pharmacological efficacy between sulfasalazine alone and sulfasalazine in combination with herbal medicine on dextran sodium sulfate- (DSS-) induced UC in mice. Balb/c mice received 5% DSS in drinking water for 7 days to induce colitis. Animals were divided into five groups (n = 9): Group I (normal group), Group II (DSS control group), Group III (DSS + sulfasalazine (30 mg/kg)), Group IV (DSS + sulfasalazine (60 mg/kg)), and Group V (DSS + sulfasalazine (30 mg/kg) + Cinnamomi Cortex and Bupleuri Radix mixture (30 mg/kg) (SCB)). Colonic pathological changes were analyzed using hematoxyline/eosin staining. The antioxidant, inflammatory, and apoptotic protein levels were determined using western blotting. SCB supplementation, as well as sulfasalazine, suppressed colonic length and mucosal inflammatory infiltration. In addition, SCB treatment significantly reduced the expression of proinflammatory signaling molecules through suppression of both mitogen-activated protein kinases (MAPK) and nuclear factor-kappa B (NF-kappaB) signaling pathways and prevented the apoptosis of the colon. Moreover, SCB administration significantly led to the upregulation of antioxidant enzymes including SOD and catalase. Taken together, SCB treatment might offer a better treatment for human UC than sulfasalazine alone or may be useful as an alternative therapeutic strategy against UC, without any evidence of side effects. PMID- 29018818 TI - The Mechanical Properties and Biometrical Effect of 3D Preformed Titanium Membrane for Guided Bone Regeneration on Alveolar Bone Defect. AB - The purpose of this study is to evaluate the effect of three-dimensional preformed titanium membrane (3D-PFTM) to enhance mechanical properties and ability of bone regeneration on the peri-implant bone defect. 3D-PFTMs by new mechanically compressive molding technology and manually shaped- (MS-) PFTMs by hand manipulation were applied in artificial peri-implant bone defect model for static compressive load test and cyclic fatigue load test. In 12 implants installed in the mandibular of three beagle dogs, six 3D-PFTMs, and six collagen membranes (CM) randomly were applied to 2.5 mm peri-implant buccal bone defect with particulate bone graft materials for guided bone regeneration (GBR). The 3D PFTM group showed about 7.4 times higher mechanical stiffness and 5 times higher fatigue resistance than the MS-PFTM group. The levels of the new bone area (NBA, %), the bone-to-implant contact (BIC, %), distance from the new bone to the old bone (NB-OB, %), and distance from the osseointegration to the old bone (OI-OB, %) were significantly higher in the 3D-PFTM group than the CM group (p < .001). It was verified that the 3D-PFTM increased mechanical properties which were effective in supporting the space maintenance ability and stabilizing the particulate bone grafts, which led to highly efficient bone regeneration. PMID- 29018819 TI - The Clinical Significance of FilmArray Respiratory Panel in Diagnosing Community Acquired Pneumonia. AB - AIM: FilmArray Respiratory Panel (FilmArray RP) test is an emerging diagnostic method in fast detecting multiple respiratory pathogens; the methodology and clinical significance of FilmArray RP in community-acquired pneumonia (CAP) diagnosis were evaluated in this study. METHODS: Specimens from 74 patients with CAP were analyzed and compared using FilmArray RP, traditional multiple PCR assay, bacterial (or fungal) culture, and serological detection. RESULTS: FilmArray RP and multiplex PCR showed 100% coincidence rate in detecting coronaviruses 229E, OC43, HKU1, and NL63, human metapneumovirus, influenza A and B, and parainfluenza viruses (PIV1, PIV2, and PIV4). There were 15 viral specimens tested as disagreement positive results. FilmArray RP had higher detection rate in detecting dual viral and Mycoplasma pneumoniae infection. The positive bacteria (or fungi) were found in 25 specimens. CONCLUSIONS: This study demonstrated the capability of FilmArray RP for simultaneous detection of broad spectrum respiratory pathogens and potential use in facilitating better patient care. PMID- 29018820 TI - The Effect of LASIK Procedure on Peripapillary Retinal Nerve Fiber Layer and Macular Ganglion Cell-Inner Plexiform Layer Thickness in Myopic Eyes. AB - PURPOSE: To evaluate the effect of applied suction during microkeratome-assisted laser in situ keratomileusis (LASIK) procedure on peripapillary retinal nerve fiber layer (RNFL) thickness as well as macular ganglion cell-inner plexiform layer (GC-IPL) thickness. METHODS: 89 patients (124 eyes) with established myopia range from -3.0 to -8.0 diopters and no associated ocular diseases were included in this study. RNFL and GC-IPL thickness measurements were performed by spectral domain optical coherence tomography (SD OCT) one day before LASIK and at 1 and 6 months postoperatively. RESULTS: Mean RNFL thickness prior to LASIK was 93.86 +/- 12.17 MUm while the first month and the sixth month postoperatively were 94.01 +/ 12.04 MUm and 94.46 +/- 12.27 MUm, respectively. Comparing results, there is no significant difference between baseline, one month, and six months postoperatively for mean RNFL (p > 0.05). Mean GC-IPL thickness was 81.70 +/- 7.47 MUm preoperatively with no significant difference during the follow-up period (82.03 +/- 7.69 MUm versus 81.84 +/- 7.64 MUm; p > 0.05). CONCLUSION: RNFL and GC-IPL complex thickness remained unaffected following LASIK intervention. PMID- 29018821 TI - Factors Affecting Unscheduled Return Visits to the Emergency Department among Minor Head Injury Patients. AB - STUDY OBJECTIVES: Differences between returning and non-returning minor head injury (MHI) emergency department (ED) patients, between the characteristics of the first visit and revisit, and between admitted and nonadmitted returning patients were investigated. METHODS: This was a retrospective study. All discharged ED patients with ICD-9 codes 850.0 to 850.9, 920, and 959.01 in 2013 were enrolled. Patients' demographic data, vital signs, Glasgow Coma Scale, ED diagnosis, length of stay, triage levels, ED examinations performed, and comorbidities were recorded for analysis. RESULTS: A total of 2,815 patients were enrolled. Of 57 (2%) patients who revisited the ED, 47 (82%) were discharged from the ED and ten (18%) were admitted to the hospital. Patients who returned to the ED were older, and they exhibited more comorbidities. Those who presented with vomiting, triage level of 1 or 2, and GCS score of <15 and who received more blood tests during their first visit were more likely to be admitted when they returned to the ED. CONCLUSIONS: Discharging MHI patients who are older or exhibit comorbidities only when symptoms and concerns are relieved completely, providing clear discharge instructions, and arranging timely clinical follow-ups may help reduce such patients' return rate. PMID- 29018822 TI - Expression of Neurotrophin-3 and trkC following Focal Cerebral Ischemia in Adult Rat Brain with Treadmill Exercise. AB - Neurotrophin-3 (NT-3) is a neurotrophic factor that mainly binds to the tyrosine kinase C (trkC) receptor. NT-3 has been shown to have neuroprotective effects in focal cerebral ischemia. Exercise also has ability to induce functional recovery in focal cerebral ischemia. However, the relationship between NT-3, its receptor trkC, and exercise has not been revealed. In this study, we assessed the expressions of NT-3 and trkC in focal cerebral ischemia. We also assessed the expression of NT-3 and trkC with treadmill exercise in focal cerebral ischemia. The results showed that, in a permanent middle cerebral artery occlusion rat model, exercise increased NT-3 and trkC expression. However, the patterns of expression of NT-3 and trkC at different time points varied. These results suggest that exercise-induced functional recovery in focal cerebral ischemia was related to NT-3 and trkC, but the role on times of NT-3 and trkC differed, although trkC is the receptor kinase for NT-3. PMID- 29018823 TI - A High Frequency Geometric Focusing Transducer Based on 1-3 Piezocomposite for Intravascular Ultrasound Imaging. AB - Due to the small aperture of blood vessel, a considerable disadvantage to current intravascular ultrasound (IVUS) imaging transducers is that their lateral imaging resolution is much lower than their axial resolution. To solve this problem, a single-element, 50 MHz, 0.6 mm diameter IVUS transducer with a geometric focus at 3 mm was proposed in this paper. The focusing transducer was based on a geometric shaped 1-3 piezocomposite. The impedance/phase, pulse echo, acoustic intensity field, and imaging resolution of the focusing transducer were tested. For comparison, a flat IVUS transducer with the same diameter and 1-3 piezocomposite was made and tested too. Compared with their results, the fabricated focusing transducer exhibits broad bandwidth (107.21%), high sensitivity (404 mV), high axial imaging resolution (80 MUm), and lateral imaging resolution (100 MUm). The experimental results demonstrated that the high frequency geometric focusing piezocomposite transducer is capable of visualizing high axial and lateral resolution structure and improving the imaging quality of related interventional ultrasound imaging. PMID- 29018824 TI - Leadership and Bullying in the Forestry Organization of Turkey. AB - It is observed that the importance of executive-employee relationships is continuously increasing in today's professional life in addition to the importance of leadership types of managers along with the efficiency of employees as well as the sufficiency of these people in their social relations. Communication of employees with one another and with their manager, along with their social relations, is among the most important factors that sustain an organization. Bullying is a kind of psychological terror that takes place in the form of repeated attacks among workers, as well as by the manager on the employees, aiming to instill stress, job dissatisfaction, and exhaustion on the employees. It has been put forth especially by recent studies that the leadership styles of the managers are highly influential on bullying. The study was carried out with 1189 forest engineers working at 25 different Regional Directorates of Forestry in Turkey. The status of engineers subject to bullying in addition to the effects of leadership types on bullying was determined as a result of the statistical analyses carried out. The results of the study were evaluated comprehensively in comparison with other studies in the relevant literature, thus developing suggestions for preventing bullying behaviors that vary across leadership types. PMID- 29018825 TI - Relationship between Metabolic Syndrome and Ocular Microcirculation Shown by Laser Speckle Flowgraphy in a Hospital Setting Devoted to Sleep Apnea Syndrome Diagnostics. AB - PURPOSE: To clarify whether the incidence of metabolic syndrome (MetS) and the overlap of MetS components are affecting the ocular circulation shown by laser speckle flowgraphy (LSFG). MATERIALS AND METHODS: We studied 76 consistent patients. Blowout score (BOS) and blowout time (BOT), which are the pulse waveform analysis parameters, and mean blur rate (MBR) using LSFG in the optic nerve head (ONH) and choroid were evaluated. Throughout, the ONH was separated out from the vessels and tissue for analysis and MBRs in the ONH were divided into four sections (superior, temporal, inferior, and nasal). RESULTS: Thirty-two patients were diagnosed having Mets. MBR-Tissue (P = 0.003), MBR-All (P = 0.01), MBR-Choroid (P = 0.04), and BOS-Choroid (P = 0.03) were significantly lower in patients with MetS than in the patients without MetS. Multiple-regression analysis revealed the temporal side of MBR-Tissue and BOS-Choroid which were identified as factors contributing independently to the overlap of the MetS components. Multiple-regression analysis also revealed that the MetS components were identified to be factors independently contributing to the BOS-Choroid and temporal side of MBR-Tissue. CONCLUSION: Our study clarified that the incidence of MetS and the overlap of the MetS components are significantly affecting the ONH and choroidal microcirculation. PMID- 29018826 TI - High Prevalence of Autoimmune Diabetes and Poor Glycaemic Control among Adults in Madagascar: A Brief Report from a Humanitarian Health Campaign in Ambanja. AB - Madagascar is a geographically isolated country considered a biodiversity hotspot with unique genomics. Both the low-income and the geographical isolation represent risk factors for the development of diabetes. During a humanitarian health campaign conducted in Ambanja, a rural city in the northern part of Madagascar, we identified 42 adult subjects with diabetes and compared their features to 24 randomly enrolled healthy controls. 42.9% (n = 18) of diabetic subjects showed HbA1c values >= 9.0%. Unexpectedly, waist circumference and BMI were similar in people with diabetes and controls. Different from the healthy controls, diabetic subjects showed a low prevalence of obesity (5.7% versus 30%, p = 0.02). Accordingly, we found a high prevalence of autoimmune diabetes as 12% of people with diabetes showed positivity for the autoantibody against glutamic acid decarboxylase. Diabetic subjects with positive autoantibody had higher HbA1c values (11.3 +/- 4.1% versus 8.3 +/- 2.6%, p = 0.03) compared to diabetic subjects with negative autoantibody. In conclusion, here we describe the presence of diabetes and its features in a rural area of Northern Madagascar, documenting poor glycaemic control and a high prevalence of autoimmune diabetes. These data highlight that the diabetes epidemic involves every corner of the world possibly with different patterns and features. PMID- 29018827 TI - Low Levels of Usual Physical Activity Are Associated with Higher 24 h Blood Pressure in Type 2 Diabetes Mellitus in a Cross-Sectional Study. AB - The aim of this study is to evaluate the association between usual physical activity and 24 h blood pressure (BP) profile in people with type 2 diabetes mellitus (DM). This is a cross-sectional study of 151 participants with type 2 DM. Usual physical activity was assessed by step counting and self-reported questionnaire. BP was measured in office and by 24 h ambulatory BP monitoring (ABPM; 24 h, daytime and nighttime). Mean participant age was 61.1 +/- 8.4 years, 64% was women, and mean duration of diabetes was 14.3 +/- 8.5 years. Ninety-two percent of participants had hypertension, and office BP was 138 +/- 18/78 +/- 10 mmHg. Inverse correlations were observed between step count and 24 h BP (systolic, r = -0.186; p = 0.022), daytime BP (systolic, r = -0.198; p = 0.015), and nighttime BP (pulse pressure, r = -0.190; p = 0.019). People were categorized into tertiles of daily step count, and the 1st tertile had higher 24 h systolic BP, daytime systolic BP, daytime mean BP, and daytime systolic BP load than those in the other tertiles, even after adjusting for age and HbA1c. Participants with type 2 DM and low levels of physical activity exhibit higher 24 h and daytime systolic ambulatory BP values as compared with those who performed more steps per day, even after adjustments for confounding factors. PMID- 29018829 TI - Comparative Efficacy of Topical Pertmehrin, Crotamiton and Sulfur Ointment in Treatment of Scabies. AB - BACKGROUND: Scabies is an ectoparasitic infection, which occurs because of direct skin-to skin contact. The ideal treatment modality is still unclear and further research on this topic is warranted. The aim of the study was to compare the efficacy and safety of the topical scabicides: permethrin, crotamiton and sulfur ointment. METHODS: Fifty four patients with diagnosed scabies were randomly divided into three treatment groups. The first group received 5% permethrin cream twice with one week interval, the patients from the second group were given crotamiton lotion for two days twice with one week interval, while the third group received 10% sulfur ointment for two or three weeks. All patients were followed up at 1, 2 and 4 weeks intervals. RESULTS: At one-week follow up the cure rate was significantly higher at permethrin-treated group when compared to crotamiton group (P< 0.001) and sulfur group (P< 0.001). At the end of two-week interval, the cure rate at permethrin group was 100%, while at crotamiton group, 66.7% and in sulfur group 38.9% (P< 0.001). At 4-week follow up the applied treatment was effective in all studied individuals. CONCLUSION: The topical application of permethrin, crotamiton and sulfur was equally efficacious at 4 week follow up, however permethrin cream showed faster improvement at first and second follow up. Acquiring permethrin is considered as expensive option and crotamiton lotion seems to be cost-less alternative to this cream. PMID- 29018830 TI - Antivenom Efficacy in Neutralizing Histopathological Complications Following Latrodectus dahli Envenomation. AB - BACKGROUND: Nowadays use of specific antivenin for latrodectism is considered as the most effective treatment in the world. This study was undertaken to investigate the efficacy of specific antivenom against histopathological complications caused by Latrodectus dahli venom on liver, heart and kidneys tissues within 72h. METHODS: Two groups were selected, each one contained 6 male New Zealand rabbits weighing 2+/-0.5kg. The animals were anesthetized with 0.5ml ketamine and 0.5ml xylazine by intramuscular route. The L. dahli venom (0.5mg/kg) was injected subcutaneously to both the groups. The second group of rabbits 24h after the venom injection received specific antivenom by intravenous route. Seventy-two hours after the venom and antivenom injections, the rabbits were dissected to obtain heart, liver and kidney tissues. The tissues were stained by hematoxylin and eosin stains and histopathological studies were examined by optical microscope. RESULTS: In group one, the venom induced myocytolysis, myocarditis, coagulation necrosis in the heart tissue and the liver tissue showed central vein congestion, congested vessels, dilated sinusoids and inflammation. However, no significant histopathological complications were observed in kidney tissues. In the second group, antivenom injection greatly prevented escalation of the complications on foresaid tissues. CONCLUSION: Latrodectus dahli venom induces histopathological complications on vital organs. Specific antivenom injection, 24h after the venom injection, could protect the tissues from incidence and intensification of histopathological complications. Future studies in human beings should be conducted to assess the protection against the specific Latrodectus antivenin. PMID- 29018828 TI - Repurposing Lesogaberan to Promote Human Islet Cell Survival and beta-Cell Replication. AB - The activation of beta-cell's A- and B-type gamma-aminobutyric acid receptors (GABAA-Rs and GABAB-Rs) can promote their survival and replication, and the activation of alpha-cell GABAA-Rs promotes their conversion into beta-cells. However, GABA and the most clinically applicable GABA-R ligands may be suboptimal for the long-term treatment of diabetes due to their pharmacological properties or potential side-effects on the central nervous system (CNS). Lesogaberan (AZD3355) is a peripherally restricted high-affinity GABAB-R-specific agonist, originally developed for the treatment of gastroesophageal reflux disease (GERD) that appears to be safe for human use. This study tested the hypothesis that lesogaberan could be repurposed to promote human islet cell survival and beta cell replication. Treatment with lesogaberan significantly enhanced replication of human islet cells in vitro, which was abrogated by a GABAB-R antagonist. Immunohistochemical analysis of human islets that were grafted into immune deficient mice revealed that oral treatment with lesogaberan promoted human beta cell replication and islet cell survival in vivo as effectively as GABA (which activates both GABAA-Rs and GABAB-Rs), perhaps because of its more favorable pharmacokinetics. Lesogaberan may be a promising drug candidate for clinical studies of diabetes intervention and islet transplantation. PMID- 29018831 TI - Mediterranean Recluse Spider, Loxosceles rufescens (Araneae: Sicariidae) from Charkhab Cave, Southern Iran. AB - BACKGROUND: The best-known dangerous spiders belong to the six genera. The genus Loxosceles or violin spiders are well known for their ability to cause skin necrosis or loxoscelism. All Loxosceles species have medical importance due to their necrotizing venom. The present article reports the occurrence of L. rufescens in Charkhab Cave, south of Iran (Larestan). METHODS: The specimens were collected from the Charkhab Cave using handling forceps, paintbrush and aspirator and preserved in 96% ethanol. RESULTS: Loxosceles rufescens, a medically important spider, is recorded from Charkhab Cave in Fars Province (southwest of Iran). Identification of L. rufescens was performed based on external morphology and the features of male genitalia. CONCLUSION: Presence of L. rufescens in south of Iran especially in a cave confirmed that this species is a widely distributed species in Iran. Therefore, cavers or cave visitors should be aware of this poisonous spider in caves. PMID- 29018832 TI - Pharyngeal Myiasis Caused by Sheep Botfly, Oestrus ovis (Diptera: Oestridae) Larva, Tabriz, East Azarbaijan Province, Iran: a Case Report. AB - Myiasis is caused by the larvae of flies infesting animal or human tissues and organs. This report aims to present a case of pharyngeal myiasis caused by the larvae of Oestrus ovis (Diptera: Oestridae). A 55-yr old drug addict living in the Shahindeje village of Western Azerbaijan Province, northwestern Iran was referred to the Emam Reza Hospital in Tabriz, having a medical history of Chronic Obstructive Pulmonary Disease (COPD) and hospitalized due to respiratory distress, 20 days ago. He was intubated with a mechanical ventilator (MV) because of his respiratory distress condition. There was an evidence of the presence of pulmonary nodules in his lungs following diagnosis, and a CT scan revealed a cavity in his lung. During the nasogastric intubation procedure, a larva was seen emerging from the patient's mouth by one of the staff of the intensive care unit of the hospital. A laboratory diagnosis was performed in the Entomology Department of the School of Medicine, Tabriz University of Medical Sciences. Interestingly, larvae of O. ovis were identified and confirmed following the laboratory proceedings. PMID- 29018833 TI - Sand Fly Fever with Different Names. PMID- 29018835 TI - 13C/31P MRS Metabolic Biomarkers of Disease Progression and Response to AAV Delivery of hGAA in a Mouse Model of Pompe Disease. AB - The development of therapeutic clinical trials for glycogen storage disorders, including Pompe disease, has called for non-invasive and objective biomarkers. Glycogen accumulation can be measured in vivo with 13C MRS. However, clinical implementation remains challenging due to low signal-to-noise. On the other hand, the buildup of glycolytic intermediates may be detected with 31P MRS. We sought to identify new biomarkers of disease progression in muscle using 13C/31P MRS and 1H HR-MAS in a mouse model of Pompe disease (Gaa-/-). We evaluated the sensitivity of these MR biomarkers in vivo after treatment using an adeno associated virus vector 2/9 encoding hGAA driven by the desmin promotor. 31P MRS showed significantly elevated phosphomonoesters (PMEs) in Gaa-/- compared to control at 2 (0.06 +/- 0.02 versus 0.03 +/- 0.01; p = 0.003), 6, 12, and 18 months of age. Correlative 1H HR-MAS measures in intact gastrocnemius muscles revealed high glucose-6-phosphate (G-6-P). After intramuscular AAV injections, glycogen, PME, and G-6-P were decreased within normal range. The changes in PME levels likely partly resulted from changes in G-6-P, one of the overlapping phosphomonoesters in the 31P MR spectra in vivo. Because 31P MRS is inherently more sensitive than 13C MRS, PME levels have greater potential as a clinical biomarker and should be considered as a complementary approach for future studies in Pompe patients. PMID- 29018834 TI - In Situ Liver Expression of HBsAg/CD3-Bispecific Antibodies for HBV Immunotherapy. AB - Current therapies against hepatitis B virus (HBV) do not reliably cure chronic infection, necessitating new therapeutic approaches. The T cell response can clear HBV during acute infection, and the adoptive transfer of antiviral T cells during bone marrow transplantation can cure patients of chronic HBV infection. To redirect T cells to HBV-infected hepatocytes, we delivered plasmids encoding bispecific antibodies directed against the viral surface antigen (HBsAg) and CD3, expressed on almost all T cells, directly into the liver using hydrodynamic tail vein injection. We found a significant reduction in HBV-driven reporter gene expression (184-fold) in a mouse model of acute infection, which was 30-fold lower than an antibody only recognizing HBsAg. While bispecific antibodies triggered, in part, antigen-independent T cell activation, antibody production within hepatocytes was non-cytotoxic. We next tested the bispecific antibodies in a different HBV mouse model, which closely mimics the transcriptional template for HBV, covalently closed circular DNA (cccDNA). We found that the antiviral effect was noncytopathic, mediating a 495-fold reduction in HBsAg levels at day 4. At day 33, bispecific antibody-treated mice exhibited 35-fold higher host HBsAg immunoglobulin G (IgG) antibody production versus untreated groups. Thus, gene therapy with HBsAg/CD3-bispecific antibodies represents a promising therapeutic strategy for patients with HBV. PMID- 29018836 TI - One-Step Fabrication of Bone Morphogenetic Protein-2 Gene-Activated Porous Poly-L Lactide Scaffold for Bone Induction. AB - Bone morphogenetic protein 2 (BMP2) is an efficacious inducer for the osteogenesis of mesenchymal stem cells (MSCs). Conventional applications of BMP2 have involved either the direct incorporation of BMP2 protein or ex vivo BMP2 gene transfer into stem cells prior to their transplantation. These approaches are able to promote bone formation to some extent; however, they are hampered by either the lack of stability and sustainability of BMP2 protein or the time consuming and cost-prohibitive in vitro cell culture procedure. To overcome these limitations, we have developed a gene-activated poly-L-lactide acid (PLLA) scaffold with the encapsulation of recombinant adeno-associated viral (AAV) vector encoding a full-length cDNA of human BMP2 using an ice-based microparticle porogenization method that was recently developed. Results showed continuous release of AAV particles from the micropores of scaffolds for up to 1 week, subsequently transducing embedded human MSCs and producing functional BMP2. MSCs within scaffolds underwent efficacious osteogenesis, on the basis of osteoinductive gene expression and osteogenic differentiation, which resulted in robust new bone formation in vivo at 4 weeks. These findings show the potential of the technology toward developing clinical applications of a rapid, cost effective, and potentially point-of-care approach for the repair of bone defects. PMID- 29018837 TI - Bone mineral density and breast cancer risk: Results from the Vorarlberg Health Monitoring & Prevention Program and meta-analysis. AB - We investigated the association between bone mineral density (BMD) and breast cancer risk in a large prospective cohort and quantified the evidence in a meta analysis of prospective studies. Baseline BMD has been measured by dual energy X ray absorptiometry (DXA, N = 1418). Data on medication and lifestyle has been collected by questionnaire. Cox proportional Hazards models were applied to calculate Hazard Ratios for breast cancer. In addition, a meta-analysis on categorical and dose-response values including the current results has been performed applying random-effects models. During mean follow-up of 16.3 (SD 3.3) years of 1380 women (mean age 55.5 +/- 6.3 years), 52 cases of invasive breast cancer were identified. We found no statistically significant association of BMD with breast cancer risk (per one z-score increase, HR 0.91, 95% CI 0.67-1.23). In the meta-analysis, however, breast cancer risk increased by 15% and 16% per 0.1 g/m2 increase in BMD at the lumbar spine (95% CI 0.99-1.33) and at the femoral neck (95% CI 1.02-1.32), respectively. Compared to the lowest, the HRs for breast cancer were statistically significant for the highest BMD category, i.e. 1.49 (95% CI 1.04-2.13) at the lumbar spine and 1.66 (95% CI 1.26-2.18) at the femur. We found no association between BMD (DXA) and breast cancer risk in our cohort. However, overall the present meta-analysis extends and confirms the statistically significant association between increasing BMD and increased breast cancer risk. PMID- 29018838 TI - Adverse post-operative outcomes in Jehovah's witnesses with gynecologic cancer within 30 days of surgery: A single institution review of 36 cases. AB - Rates of blood transfusion are reported as high as 32% in women undergoing major gynecologic cancer surgery. Therefore, care of the gynecologic oncology patient who refuses blood products, such as Jehovah's witnesses, can pose a unique challenge. The objective of this study was to determine rate of adverse post operative outcomes within 30 days of surgery in Jehovah's witnesses with gynecologic cancer. This was a retrospective cohort study of Jehovah's witnesses undergoing laparotomy or minimally invasive surgery (MIS) for gynecologic cancer at a single institution. Data for post-adverse complications within 30 days of surgery were recorded. In total, 36 patients were included with a median age of 58.5 years (32-85 years). The majority had endometrial adenocarcinoma (n = 23; 63.9%) or epithelial ovarian, fallopian tube or peritoneal cancer (EOC) (n = 8; 22.2%). 61.1% (n = 22) of patients underwent laparotomy and 38.9% (n = 14) had MIS procedures. 31.8% of laparotomies (n = 7) were terminated prematurely due to surgeon concern for ongoing blood loss. In patients with advanced stage EOC, the rate of suboptimal cytoreduction (> 1 cm) was 50%. In the laparotomy cohort, there were four (18.2%) ICU admissions and two (9.1%) mortalities. The time to adjuvant chemotherapy or radiation was 45.5 days (31-64) for laparotomy compared to 35.0 days (12-64) for MIS. While the majority of patients (97.2%) were unwilling to accept packed red blood cells, over one third (38.9%) were agreeable to autologous blood transfusion. Additionally, five (13.9%) patients were accepting of fresh frozen plasma, six (16.7%) patients were agreeable to cryoprecipitate and seven (19.4%) patients were willing to accept platelet transfusions. There is a high rate of postoperative adverse outcomes among Jehovah's witnesses undergoing laparotomy for gynecologic malignancy compared. Acceptance of blood products is low among Jehovah's witnesses, even in the setting of major oncologic surgery. PMID- 29018839 TI - Clinical Assessment of Physical Examination Maneuvers for Superior Labral Anterior to Posterior Lesions. AB - Purpose Shoulder pain and disability pose a diagnostic challenge owing to the numerous etiologies and the potential for multiple disorders to exist simultaneously. The evidence to support the use of clinical tests for superior labral anterior to posterior complex (SLAP) is weak or absent. The purpose of this study is to determine the diagnostic validity of physical examination maneuvers for SLAP lesions by performing a methodologically rigorous, clinically applicable study. Methods We recruited consecutive new shoulder patients reporting pain and/or disability. The physician took a history and indicated their certainty about each possible diagnosis ("certain the diagnosis is absent/present," or "uncertain requires further testing"). The clinician performed the physical tests for diagnoses where uncertainty remained. Magnetic resonance imaging arthrogram and arthroscopic examination were the gold standards. We calculated sensitivity, specificity, and likelihood ratios (LRs) and investigated whether combinations of the top tests provided stronger predictions. Results Ninety-three patients underwent physical examination for SLAP lesions. When using the presence of a SLAP lesion (Types I-V) as disease positive, none of the tests was sensitive (10.3-33.3) although they were moderately specific (61.3-92.6). When disease positive was defined as repaired SLAP lesion (including biceps tenodesis or tenotomy), the sensitivity (10.5-38.7) and specificity (70.6-93.8) of tests improved although not by a substantial amount. None of the tests was found to be clinically useful for predicting repairable SLAP lesions with all LRs close to one. The compression rotation test had the best LR for both definitions of disease (SLAP tear present = 1.8 and SLAP repaired = 1.67). There was no optimal combination of tests for diagnosing repairable SLAP lesions, with at least two tests positive providing the best combination of measurement properties (sensitivity 46.1% and specificity 64.7%). Conclusion Our study demonstrates that the physical examination tests for SLAP lesions are poor diagnostic indicators of disease. Performing a combination of tests will likely help, although the magnitude of the improvement is minimal. These authors caution clinicians placing confidence in the physical examination tests for SLAP lesions rather we suggest that clinicians rely on diagnostic imaging to confirm this diagnosis. PMID- 29018840 TI - Sharing individual patient and parasite-level data through the WorldWide Antimalarial Resistance Network platform: A qualitative case study. AB - BACKGROUND: Increasingly, biomedical researchers are encouraged or required by research funders and journals to share their data, but there's very little guidance on how to do that equitably and usefully, especially in resource constrained settings. We performed an in-depth case study of one data sharing pioneer: the WorldWide Antimalarial Resistance Network (WWARN). METHODS: The case study included a records review, a quantitative analysis of WAARN-related publications, in-depth interviews with 47 people familiar with WWARN, and a witness seminar involving a sub-set of 11 interviewees. RESULTS: WWARN originally aimed to collate clinical, in vitro, pharmacological and molecular data into linked, open-access databases intended to serve as a public resource to guide antimalarial drug treatment policies. Our study describes how WWARN navigated challenging institutional and academic incentive structures, alongside funders' reluctance to invest in capacity building in malaria-endemic countries, which impeded data sharing. The network increased data contributions by focusing on providing free, online tools to improve the quality and efficiency of data collection, and by inviting collaborative authorship on papers addressing policy relevant questions that could only be answered through pooled analyses. By July 1, 2016, the database included standardised data from 103 molecular studies and 186 clinical trials, representing 135,000 individual patients. Developing the database took longer and cost more than anticipated, and efforts to increase equity for data contributors are on-going. However, analyses of the pooled data have generated new methods and influenced malaria treatment recommendations globally. Despite not achieving the initial goal of real-time surveillance, WWARN has developed strong data governance and curation tools, which are now being adapted relatively quickly for other diseases. CONCLUSIONS: To be useful, data sharing requires investment in long-term infrastructure. To be feasible, it requires new incentive structures that favour the generation of reusable knowledge. PMID- 29018841 TI - A framework for Controlled Human Infection Model (CHIM) studies in Malawi: Report of a Wellcome Trust workshop on CHIM in Low Income Countries held in Blantyre, Malawi. AB - Controlled human infection model (CHIM) studies have pivotal importance in vaccine development, being useful for proof of concept, pathogenesis, down selection and immunogenicity studies. To date, however, they have seldom been carried out in low and middle income countries (LMIC), which is where the greatest burden of vaccine preventable illness is found. This workshop discussed the benefits and barriers to CHIM studies in Malawi. Benefits include improved vaccine effectiveness and host country capacity development in clinical, laboratory and governance domains. Barriers include acceptability, safety and regulatory issues. The report suggests a framework by which ethical, laboratory, scientific and governance issues may be addressed by investigators considering or planning CHIM in LMIC. PMID- 29018843 TI - Acceleration and suppression of banana-shaped-protein-induced tubulation by addition of small membrane inclusions of isotropic spontaneous curvatures. AB - Membrane tubulation induced by banana-shaped protein rods is investigated by using coarse-grained meshless membrane simulations. It is found that tubulation is promoted by laterally isotropic membrane inclusions that generate the same sign of spontaneous curvature as the adsorbed protein rods. The inclusions are concentrated in the tubules and reduce the bending energy of the tip of the tubules. On the other hand, inclusions with an opposite curvature suppress tubulation by percolated-network formation at a high protein-rod density while they induce the formation of a spherical membrane bud at a low rod density. When equal amounts of the two types of inclusions (with positive and negative curvatures) are added, their effects cancel each other for the first short period but later the tubulation is slowly accelerated. Positive surface tension suppresses tubulation. Our results suggest that the cooperation of scaffolding of BAR (Bin/Amphiphysin/Rvs) domains and isotropic membrane inclusions is important for tubulation. PMID- 29018842 TI - First detection of N1575Y mutation in pyrethroid resistant Anopheles gambiae in Southern Cote d'Ivoire. AB - Background. The intensification of insecticide use for both public health and agriculture in Africa has contributed to growing insecticide resistance. Today, resistance to World Health Organization (WHO)-approved insecticide classes is widespread. In an agricultural area of Southern Cote d'Ivoire, the main malaria vector Anopheles coluzzii shows multiple resistance across insecticides mediated by both target site mutation and metabolic mechanisms. To plan new vector control strategies and avert future resistance liabilities caused by cross-resistance mechanisms extant within populations, it is crucial to monitor the development and spread of both resistance and mechanisms. Methods. Larvae of Anopheles gambiae were collected from natural breeding sites in Tiassale and Elibou, between April and November 2016 and raised to adults . Adult female non-blood fed mosquitoes, three to five days old, were exposed to deltamethrin in WHO bioassays. Extracted DNA samples from exposed mosquitoes were used for species characterisation and genotyping. Results. Most adult An. gambiae tested were resistant to deltamethrin, with mortality rates of only 25% in Tiassale and 4.4% in Elibou. Molecular analysis of DNA from samples tested showed the presence of both An. coluzzii and An. gambiae s.s in Elibou and only An. coluzzii for Tiassale. As previously, the L1014F kdr mutation was present at high frequency (79%) in Tiassale and the L1014S mutation was absent. The N1575Y mutation, which amplifies resistance conferred by L1014F was detected in a single unique individual from a Tiassale An. coluzzii female whereas in Elibou 1575Y was present in 10 An. gambiae s.s, but not in An. coluzzii. Conclusion. This is the first report of the N1575Y mutation in Cote d'Ivoire, and as in other populations, it is found in both dominant West African malaria vector species. Continued monitoring of N1575Y is underway, as are studies to elucidate its contribution to the resistance of local vector populations. PMID- 29018844 TI - Thermally-induced lateral assembly of a PEG-containing amphiphile triggering vesicle budding. AB - A macrocyclic amphiphile consisting of a thermo-responsive octaethylene glycol chain with hydrophobic aromatic and aliphatic units undergoes lateral self assembly in a liquid-disordered-state phospholipid bilayer membrane upon heating, which further leads to vesicle budding. PMID- 29018845 TI - Controlled self-sorting in self-assembled cage complexes. AB - In this frontier article we highlight recent advances in subcomponent self sorting in self-assembled metal-ligand cage complexes, with a focus on selective discrimination between ligands that contain highly similar metal-coordinating groups. Effects such as varying ligand length, coordination angle and backbone flexibility, as well as the introduction of secondary weak forces such as hydrogen bonds can be exploited to favor either narcissistic or social self sorting. We highlight these creative solutions, and emphasize the challenges that remain in the development of functional self-assembled heterocomplexes. PMID- 29018846 TI - Antibiotics and specialized metabolites from the human microbiota. AB - Covering: 2000 to 2017Decades of research on human microbiota have revealed much of their taxonomic diversity and established their direct link to health and disease. However, the breadth of bioactive natural products secreted by our microbial partners remains unknown. Of particular interest are antibiotics produced by our microbiota to ward off invasive pathogens. Members of the human microbiota exclusively produce evolved small molecules with selective antimicrobial activity against human pathogens. Herein, we expand upon the current knowledge concerning antibiotics derived from human microbiota and their distribution across body sites. We analyze, using our in-house chem-bioinformatic tools and natural products database, the encoded antibiotic potential of the human microbiome. This compilation of information may create a foundation for the continued exploration of this intriguing resource of chemical diversity and expose challenges and future perspectives to accelerate the discovery rate of small molecules from the human microbiota. PMID- 29018848 TI - A gold(i)-catalyzed intramolecular tandem cyclization reaction of alkylidenecyclopropane-containing alkynes. AB - A novel gold(i)-catalyzed intramolecular tandem cyclization reaction of ortho (arylethynyl)arenemethylenecyclopropanes provided an efficient approach to prepare functionalized 11H-benzo[a]fluorene derivatives in moderate to good yields. Further transformations as well as applications of the products have been presented and a plausible reaction mechanism has also been proposed on the basis of deuterium labeling and control experiments. PMID- 29018847 TI - The reactivity of phenylethanethiolated gold nanoparticles with acetic acid. AB - We report the size-dependent reactivity of phenylethanethiolated gold nanoparticles with acetic acid. Employing this reactivity, we synthesize a novel nanocluster Au38(PET)26 (PET: phenylethanethiolate), which is otherwise difficult to obtain and exhibits remarkably different photoluminescence and electrochemical properties compared with the well-known Au38(PET)24 nanoclusters. And the reaction process between Au38(PET)26 and acetic acid was probed by matrix assisted laser desorption/ionization time of flight mass spectrometry. PMID- 29018849 TI - Construction of (3,6)-connected polyoxometalate-based metal-organic frameworks (POMOFs) from triangular carboxylate and dimerized Zn4-epsilon-Keggin. AB - Using the methodology of extension of reduced transition metal-grafted epsilon Keggin polyoxoanions with two types of terphenyl-based tricarboxylates of H3L1 (3,5',3''-position substitution) and H3L2 (4,5',4''-position substitution) we isolated two (3,6)-connected 3D polyoxometalate-based metal-organic frameworks, [TBA]3[H3PMo12O40][Zn4L2] (1, YZU-105), and [TPA]3[H3PMo12O40][Zn4L1].0.5H2O (2, YZU-106) (H3L1 = [1,1';3',1''-terphenyl]-3,5',3''-tricarboxylic acid; H3L2 = [1,1';3',1''-terphenyl]-4,5',4''-tricarboxylic acid; TBA = tetrabutylammonium; TPA = tetrapropylammonium). In both compounds, the building block was the dimerized form of Zn4-{epsilon-H3PMo12O40}. Such dimerization left six anchoring points for each dimer and, as a result, a 6-connected node was formed. Compounds 1 and 2 exhibited topologies of (4.85)3(4.82)6 and (65.10)3(63)6, respectively. This work illustrates that use of tri-carboxylate substitutions in different positions (3,5',3''-position/4,5',4''-position) in tripodal terphenyl-based ligands allows different extents of twisting of the peripheral aromatic ring with respect to the central ring, thereby giving rise to different extending directions and symmetries. PMID- 29018850 TI - Optimising minimal building blocks for addressable self-assembly. AB - Addressable structures are characterised by the set of unique components from which they are built and by the specific location that each component occupies. For an addressable structure to self-assemble, its constituent building blocks must be encoded with sufficient information to define their positions with respect to each other and to enable them to navigate to those positions. DNA, with its vast scope for encoding specific interactions, has been successfully used to synthesise addressable systems of several hundred components. In this work we examine the complementary question of the minimal requirements for building blocks to undergo addressable self-assembly driven by a controlled temperature quench. Our testbed is an idealised model of cubic particles patterned with attractive interactions. We introduce a scheme for optimising the interactions using a variant of basin-hopping and a negative design principle. The designed building blocks are tested dynamically in simple target structures to establish how their complexity affects the limits of reliable self-assembly. PMID- 29018851 TI - Beyond soft chemistry - bulk and surface modifications of polycrystalline lepidocrocite titanate induced by post-synthesis thermal treatment. AB - While the soft chemistry of layered alkali metal oxides is adequately understood, the effect of the post-synthesis thermal treatment on their structure, composition, and properties has been underexplored. In this article, we thoroughly investigated the bulk and surface modifications of K0.8M0.4Ti1.6O4 (M = Ni, Cu, Zn) lepidocrocite titanate thermally treated within 200 degrees C above its synthetic temperature under air. This practice was typically employed in e.g., specimen fabrication for physical property measurements. We observed the expansion of the interlayer distance (b/2) accompanied by a reduction in layer charge density. These findings can be explained by the deintercalation of interlayer K+ ions and the loss of intralayer Ti, M, and O species. Meanwhile, the enrichment of potassium and carbonate on the surfaces was evident. The slight differences in dielectric properties of the pellets thermally treated at different temperatures were attributed to the combination of bulk and surface modifications. At 103 Hz and RT-250 degrees C, the maximum dielectric constants epsilon'max of ~104 with the dielectric loss (tan delta) ~0.9-1.5 were obtained for K0.8Zn0.4Ti1.6O4. PMID- 29018852 TI - Modeling the transformation of atmospheric CO2 into microalgal biomass. AB - Marine phytoplankton acts as a considerable sink of atmospheric CO2 as it sequesters large quantities of this greenhouse gas for biomass production. To assess microalgae's counterbalancing of global warming, the quantities of CO2 they fix need to be determined. For this task, it is mandatory to understand which environmental and physiological parameters govern this transformation from atmospheric CO2 to microalgal biomass. However, experimental analyses are challenging as it has been found that the chemical environment has a major impact on the physiological properties of the microalgae cells (diameter typ. 5-20 MUm). Moreover, the cells can only chemically interact with their immediate vicinity and thus compound sequestration needs to be studied on a microscopic spatial scale. Due to these reasons, computer simulations are a more promising approach than the experimental studies. Modeling software has been developed that describes the dissolution of atmospheric CO2 into oceans followed by the formation of HCO3- which is then transported to individual microalgae cells. The second portion of this model describes the competition of different cell species for this HCO3-, a nutrient, as well as its uptake and utilization for cell production. Two microalgae species, i.e. Dunaliella salina and Nannochloropsis oculata, were cultured individually and in a competition situation under different atmospheric CO2 conditions. It is shown that this novel model's predictions of biomass production are in very good agreement with the experimental flow cytometry results. After model validation, it has been applied to long-term prediction of phytoplankton generation. These investigations were motivated by the question whether or not cell production slows down as cultures grow. This is of relevance as a reduced cell production rate means that the increase in a culture's CO2-sinking capacity slows down as well. One implication resulting from this is that an increase in anthropogenic CO2 may not be counterbalanced by an increase in phytoplankton production. Modeling studies have found that for several different atmospheric CO2 levels provided to single species cultures as well as to species in competing scenarios the cell production rate does slow down over time. PMID- 29018853 TI - An argyrodite-type Ag9GaSe6 liquid-like material with ultralow thermal conductivity and high thermoelectric performance. AB - We report a ternary argyrodite-type Ag9GaSe6 compound as a promising thermoelectric material in a moderate temperature range. Due to high carrier mobility and ultralow lattice thermal conductivity, a maximum ZT of 1.1 was obtained with stoichiometric Ag9GaSe6 at 800 K. Via introducing slight Se deficiency to optimize the carrier concentration, the maximum ZT is further enhanced to 1.3. PMID- 29018854 TI - Isotachophoresis applied to biomolecular reactions. AB - This review discusses research developments and applications of isotachophoresis (ITP) to the initiation, control, and acceleration of chemical reactions, emphasizing reactions involving biomolecular reactants such as nucleic acids, proteins, and live cells. ITP is a versatile technique which requires no specific geometric design or material, and is compatible with a wide range of microfluidic and automated platforms. Though ITP has traditionally been used as a purification and separation technique, recent years have seen its emergence as a method to automate and speed up chemical reactions. ITP has been used to demonstrate up to 14 000-fold acceleration of nucleic acid assays, and has been used to enhance lateral flow and other immunoassays, and even whole bacterial cell detection assays. We here classify these studies into two categories: homogeneous (all reactants in solution) and heterogeneous (at least one reactant immobilized on a solid surface) assay configurations. For each category, we review and describe physical modeling and scaling of ITP-aided reaction assays, and elucidate key principles in ITP assay design. We summarize experimental advances, and identify common threads and approaches which researchers have used to optimize assay performance. Lastly, we propose unaddressed challenges and opportunities that could further improve these applications of ITP. PMID- 29018855 TI - Mitochondrial-targeted multifunctional mesoporous Au@Pt nanoparticles for dual mode photodynamic and photothermal therapy of cancers. AB - In the conventional non-invasive cancer treatments, such as photodynamic therapy (PDT) and photothermal therapy (PTT), light irradiation is precisely focused on tumors to induce apoptosis via the generation of reactive oxygen species (ROS) or localized heating. However, overconsumption of oxygen and restricted diffusion distance of ROS limit the therapeutic effects on hypoxic tumors. Herein, we developed a platform for the rapid uptake of multifunctionalized Au@Pt nanoparticles (NPs) by mitochondria in cancer cells. The mesoporous Au@Pt nanoparticles were labeled with a cell-targeting ligand (folic acid), a mitochondria-targeting group (triphenylphosphine (TPP)), and a photosensitizer (Ce6). This led to significant improvement of the PDT efficacy due to an enhanced cellular uptake, an effective mitochondrial ROS burst, and a rapid intelligent release of oxygen. Moreover, Au@Pt NPs can convert laser radiation into heat, resulting in thermally induced cell damage. This nanosystem could be used as a dual-mode phototherapeutic agent for enhanced cancer therapy and molecular targets associated with disease progression. We achieved a mitochondria-targeted multifunctional therapy strategy (a combination of PDT and PTT) to substantially improve the therapeutic efficiency. PMID- 29018856 TI - Droplet impact on flowing liquid films with inlet forcing: the splashing regime. AB - The impact process of droplets falling obliquely on thin flowing films is studied using a high-speed imaging system with a focus on splashing. Frequency-forcing of the flow rate at the inlet is applied in order to form solitary waves prior to droplet impact. The outcomes associated with impact on targeted regions of the waves are examined; these include the capillary wave region preceding the large wave peak, the flat film region, and the wave hump region. The effect of varying the film flow rate, droplet size, and speed on the splashing regime for each of these regions is elucidated. The results are further compared with those associated with uncontrolled flowing films, and with quiescent films. The present work has demonstrated, for the first time, the contribution made by the spatial structure of waves to the outcome of droplet impact on flowing films. PMID- 29018857 TI - Plasmon mediated Fe-O in an octahedral site of cuprospinel by Cu NPs for photocatalytic hydrogen evolution. AB - Cu NPs (copper nanoparticles) were synthesized in situ on the surface of CuFe2O4 (cuprospinel). The enhancement of the separation efficiency of photogenerated e /h+ and the catalytic quantum efficiency showed that the LSPR (local surface plasmon resonance) of Cu NPs facilitated the photocatalytic reaction activity of CuFe2O4. And due to the fact that CuFe2O4 was constructed with Cu-O in the tetrahedral site and Fe-O in the octahedral site, the results of DTG and Raman spectra after HER (hydrogen evolution reaction) displayed that the phase change of Fe-O in the octahedral site of CuFe2O4 took place during the HER process, and along with the peak of Fe2+ in XPS spectra after HER, which indicated that light activated Fe-O in the octahedral site was responsible for the photocatalytic process. PMID- 29018858 TI - Overall water splitting by photoelectrochemical cells consisting of (ZnSe)0.85(CuIn0.7Ga0.3Se2)0.15 photocathodes and BiVO4 photoanodes. AB - The design of photoelectrochemical (PEC) cell structures that mitigate challenges related to mass transfer is the key to achieving efficient hydrogen production. A PEC cell based on an integrated photoelectrode incorporating (ZnSe)0.85(CuIn0.7Ga0.3Se2)0.15 strips and BiVO4 strips exhibited 1.0% solar-to hydrogen energy conversion efficiency even without stirring the electrolyte solution. PMID- 29018859 TI - Constructing hierarchical porous nanospheres for versatile microwave response approaches: the effect of architectural design. AB - Owing to their immense potential in functionalized applications, tremendous interest has been devoted to the design and synthesis of nanostructures. The introduction of sufficient amount of microwaves into the absorbers on the premise that the dissipation capacity is strong enough remains a key challenge. Pursuing a general methodology to overcome the incompatibility is of great importance. There is widespread interest in designing the materials with specific architectures. Herein, the common absorber candidates were chosen to feature the hierarchical porous Fe3O4@C@Fe3O4 nanospheres. Due to the reduced skin effect (induced by low-conductivity Fe3O4 outer layer), multiple interfacial polarizations and scattering (due to the ternary hierarchical structures and nanoporous inner core) as well as the improved magnetic dissipation ability (because of multiple magnetic components), the material design enabled a promising microwave absorption performance. This study not only illustrates the primary mechanisms for the improved microwave absorption performance but also underscores the potential in designing the particular architectures as a strategy for achieving the compatibility characteristics. PMID- 29018860 TI - Competitive concurrence of surface wrinkling and dewetting of liquid crystalline polymer films on non-wettable substrates. AB - Polymeric thin films coated on non-wettable substrates undergo film instabilities, which are usually manifested as surface deformation in the form of dewetting or wrinkling. The former takes place in fluidic films, whereas the latter occurs in solid films. Therefore, there have rarely been reports of systems involving simultaneous deformations of dewetting and wrinkling. In this study, we propose polymeric thin films of liquid crystalline (LC) mesogens prepared on a non-wettable Si substrate and apply a treatment of plasma irradiation to form a thin polymerized layer at the surface. The resulting compressive stress generated in the surface region drives the formation of wrinkles, while at the same time, dipolar attraction between LC molecules induces competitive cohesive dewetting. Intriguing surface structures were obtained whereby dewetting-like hole arrays are nested inside the randomly propagated wrinkles. The structural features are readily controlled by the degree of surface cross-linking, hydrophilicity of the substrates, and the LC film thickness. In particular, dewetting of LC mesogens is observed to be restricted to occur at the trough regions of wrinkles, exhibiting the typical behavior of geometrically confined dewetting. Finally, wrinkling-dewetting mixed structures are separated from the substrate in the form of free standing films to demonstrate the potential applicability as membranes. PMID- 29018861 TI - Role of solvent properties of water in crowding effects induced by macromolecular agents and osmolytes. AB - Solvent properties of water in aqueous solutions of polyethylene glycols of various molecular weights, l-proline, betaine, and a series of chlorides of varied concentrations are assayed using three solvatochromic dyes. The properties include solvent dipolarity/polarizability, hydrogen bond donor acidity, and hydrogen bond acceptor basicity. These properties are also evaluated in mixtures of two polymers, polymer and osmolyte, and two osmolytes. It is shown that linear combinations of solvent dipolarity/polarizability and hydrogen bond donor acidity assayed in individual solutions of crowders strongly correlate with the effects of the crowders on the stability of various proteins and nucleic acids reported in the literature. The solvent properties of water in aqueous mixtures of two macromolecular crowders, two osmolytes, or mixtures of an osmolyte and a macromolecular crowder vary differently for various solvent properties. The overall effects of the two components in the mixture on a given solvent property of water may be additive, reduced or enhanced depending on the particular composition of the mixture. It is hypothesized that changes in the solvent properties of water are related to changes in the water hydrogen-bonding structuring. It is suggested that the observed crowder-induced changes in the solvent properties of water should be taken into account in theoretical considerations of crowding effects in biological systems. PMID- 29018862 TI - Supramolecular chirality of amphiphilic block copolymer films made through two steps: self-assembling first, and then solution coating. AB - Supramolecular chirality is achieved in amphiphilic block copolymer films made through two-step fabrication: self-assembling first and then solution coating. The amphiphilic block copolymer is composed of poly(N-isopropyl acrylamide) (pNIPAM) as hydrophilic segments and poly(methyl methacrylate) with chiral side groups as hydrophobic segments. The films fabricated by two steps show sensible circular dichroism (CD) signals around a wavelength of 200 nm. However, CD signals cannot be detected from films made by directly coating the solution of copolymers on the quartz surface. The CD signal at about 200 nm is from supramolecular arrangement of benzene units connected to the chiral group in the hydrophobic segment. This result is thought to be originated from the aggregation of the copolymer during the first step of the film forming process, and the corresponding investigation into factors affecting this process has been performed in this work. It is also found that the films fabricated by two steps can adsorb chiral small molecules enantioselectively, while the films obtained by coating the solution of copolymers directly have no such enatioselective adsorption ability. PMID- 29018863 TI - A unified understanding of the direct coordination of NO to first-transition-row metal centers in metal-ligand complexes. AB - The binding of nitric oxide (NO) to heme-proteins is an important biochemical process involved in a variety of physiological functions. Here, using hybrid density-functional calculations, we systematically investigate the adsorption of NO to first-transition-row metal centers in metal-ligand complexes. Through the comparative study for different transition metal (TM) centers, we provide a unified understanding of the microscopic interactions of NO with the TM centers and related chemical trends. We found that as the atomic number of the TM center increases, the binding strength of NO is largely reduced from 207 kJ mol-1 to near zero due to the low d-orbital energies for late TM centers. The intermolecular spin coupling between the localized spins at the TM center and the NO molecule is generally antiferromagnetic, except for the case of Sc. The spin spin coupling is determined in such a way to avoid the energy penalty associated with the electron occupation in the antibonding states of the NO-bound complex. The adsorption strength of NO is generally larger than of CO because the unpaired electron of NO occupies the associated bonding state. PMID- 29018864 TI - A cluster-based mesoporous Ti-MOF with sodalite supercages. AB - The cooperative assembly of a hexagonal column shaped [Ti6O6][iPrO]66+ cluster and rhomboid Cu2I2 dimers using isonicotinic acid results in an unprecedented three-dimensional (3D) highly crystalline cluster-based Ti-MOF that features both giant sodalite cages with an inner diameter of 2.8 * 3.2 nm2 and 3D open square channels. PMID- 29018865 TI - A zirconium metal-organic framework with an exceptionally high volumetric surface area. AB - A zirconium metal-organic framework (MOF), PCN-111, has been synthesized by using an elongated ditopic carboxylate linker, 4,4'-(buta-1,3-diyne-1,4 diyl)dibenzoate. Single crystal X-ray diffraction characterization indicates that the noninterpenetrated microporous structure of PCN-111 is isoreticular to UIO MOFs with 12 connected Zr6O4(OH)4(CO2)12 clusters and a fcu topology. It was successfully activated through a solvent exchange with acetone followed by controlled evacuation and its gas sorption was reported. By using 77 K nitrogen adsorption isotherm and strictly applying three consistency criteria, the BET surface area for PCN-111 was calculated to be 4825 m2 g-1. Pore size distribution analysis suggests that the sizes of cavities contributing to nitrogen adsorption are predominately in the range of 15 to 20 A, which are in good agreement with the two polyhedral cages (15.6 and 20.2 A, respectively) in the single crystal X ray solved structure. Owing to its relatively high crystal density (0.42 g cm-3), the volumetric surface area for PCN-111 was calculated to be 2026 m2 cm-3. The value is among the highest of all the reported ultrahigh surface area MOF materials. The exceptionally high microporosity of PCN-111 has also been validated by comparison with the simulated nitrogen adsorption isotherm derived from multipurpose simulation code MUSIC. PMID- 29018866 TI - Are professional drivers less sleepy than non-professional drivers? AB - Objective It is generally believed that professional drivers can manage quite severe fatigue before routine driving performance is affected. In addition, there are results indicating that professional drivers can adapt to prolonged night shifts and may be able to learn to drive without decreased performance under high levels of sleepiness. However, very little research has been conducted to compare professionals and non-professionals when controlling for time driven and time of day. Method The aim of this study was to use a driving simulator to investigate whether professional drivers are more resistant to sleep deprivation than non professional drivers. Differences in the development of sleepiness (self reported, physiological and behavioral) during driving was investigated in 11 young professional and 15 non-professional drivers. Results Professional drivers self-reported significantly lower sleepiness while driving a simulator than non professional drivers. In contradiction, they showed longer blink durations and more line crossings, both of which are indicators of sleepiness. They also drove faster. The reason for the discrepancy in the relation between the different sleepiness indicators for the two groups could be due to more experience to sleepiness among the professional drivers or possibly to the faster speed, which might unconsciously have been used by the professionals to try to counteract sleepiness. Conclusion Professional drivers self-reported significantly lower sleepiness while driving a simulator than non-professional drivers. However, they showed longer blink durations and more line crossings, both of which are indicators of sleepiness, and they drove faster. PMID- 29018867 TI - Changes in working conditions and major weight gain among normal- and overweight midlife employees. AB - Objectives We aimed to examine the association between changes in psychosocial working conditions and major weight gain among midlife women and men. Furthermore, we examined the associations separately among normal- and overweight participants. Methods We used survey data among employees of the City of Helsinki, Finland, from 2000-2002 (phase 1, N=8960), 2007 (phase 2, N=7332), and 2012 (phase 3, N=6814), with a final study sample of 4369 participants. We examined changes in job strain, job demands, and job control from phase 1 to 2. We defined major weight gain as >=10% weight gain between phases 1 and 3 based on self-reported weight (kg). We performed logistic regression analysis adjusting for baseline age, marital status, and occupational class, stratifying by gender and by baseline body mass index. Results Job demands among both genders and job strain among women was associated with major weight gain. Furthermore, increased job demands [odds ratio (OR) 1.52, 95% CI 1.05-2.20] or increased job strain (OR 1.53, 95% CI 1.11-2.11) was associated with major weight gain among overweight women. Normal-weight men reporting decreased job demands (OR 4.11, 95% CI 1.48 11.40) and overweight men reporting increasing job demands (OR 2.93, 95% CI 1.26 6.82) exhibited higher odds of major weight gain. Conclusions Associations between working conditions and weight gain appeared primarily weak. Our study suggests that overweight individuals might be at a higher risk of weight gain when facing psychosocial strain in the workplace. PMID- 29018870 TI - Correction to: Expanding Diversity and Common Goal of Regulatory T and B Cells. I: Origin, Phenotype, Mechanisms. AB - The original article has been published without acknowledgment section. The acknowledgement section is given below for your reading. PMID- 29018868 TI - Differential gene regulatory networks in development and disease. AB - Gene regulatory networks, in which differential expression of regulator genes induce differential expression of their target genes, underlie diverse biological processes such as embryonic development, organ formation and disease pathogenesis. An archetypical systems biology approach to mapping these networks involves the combined application of (1) high-throughput sequencing-based transcriptome profiling (RNA-seq) of biopsies under diverse network perturbations and (2) network inference based on gene-gene expression correlation analysis. The comparative analysis of such correlation networks across cell types or states, differential correlation network analysis, can identify specific molecular signatures and functional modules that underlie the state transition or have context-specific function. Here, we review the basic concepts of network biology and correlation network inference, and the prevailing methods for differential analysis of correlation networks. We discuss applications of gene expression network analysis in the context of embryonic development, cancer, and congenital diseases. PMID- 29018871 TI - [Pacemaker, defibrillator and co : Perioperative handling of cardiac implantable electronic devices]. AB - The number of patients treated with cardiac implantable electronic devices (CIED) is continously increasing. Knowledge of the medical indications and technical mode of functioning of these devices is a basic prerequisite for the safe perioperative care of this patient cohort. The CIEDs are subjected to a multitude of disturbing influences in the perioperative setting. This can result in potentially dangerous complications, such as exit block and oversensing. The safe performance of interventions is possible as long as some basic rules are followed. An interdisciplinary approach involving all participating disciplines is necessary in order to adequately deal with the high demands placed on the logistics. PMID- 29018872 TI - [Quality criteria for minimally invasive esophagectomy - a register analysis]. PMID- 29018873 TI - The treatment of perilunate ligament injuries in multiply injured patients. AB - PURPOSE: Perilunate injuries are rare, severe injuries of the carpus. They can present as isolated injuries or in the poly-traumatised patient. This is the first documented series of these injuries treated in a Major Trauma Centre. The aims were to assess the management, treatment algorithm and outcomes, of perilunate injuries in our department, review whether concomitant polytrauma affected those outcomes and identify if delay to definitive treatment had a significant effect on overall outcome. METHODS: Perilunate injuries admitted to the Royal London Hospital between Oct 2011 and March 2016 were identified. All definitive surgical procedures were performed by the senior author; hand therapists supervised patient rehabilitation. Outcomes were assessed by Mayo Wrist and QuickDASH scores. RESULTS: We identified 23 perilunate injuries (22 patients). There was an associated nerve injury in 10 cases with other system injuries present in 12 cases. At final review, the mean carpal height ratio was 0.56, Mayo Wrist score was 81 and QuickDASH score was 16.4. There were no differences when comparing the outcomes of patients who had early against those with more delayed definite treatment or when comparing patients with isolated wrist injuries against polytrauma patients. CONCLUSION: Satisfactory outcomes can be achieved, even in the presence of other injuries, if initial treatment is prompt and follows a clear management protocol. Prompt early reduction and neurological decompression followed by subsequent accurate definitive fixation leads to good outcomes. A delay of definitive fixation of up to 18 days does not appear to have a deleterious effect on outcome. PMID- 29018869 TI - Molecular components and polarity of radial glial cells during cerebral cortex development. AB - Originating from ectodermal epithelium, radial glial cells (RGCs) retain apico basolateral polarity and comprise a pseudostratified epithelial layer in the developing cerebral cortex. The apical endfeet of the RGCs faces the fluid-filled ventricles, while the basal processes extend across the entire cortical span towards the pial surface. RGC functions are largely dependent on this polarized structure and the molecular components that define it. In this review, we will dissect existing molecular evidence on RGC polarity establishment and during cerebral cortex development and provide our perspective on the remaining key questions. PMID- 29018876 TI - [Report of the molecular pathology working group]. PMID- 29018877 TI - Correction to: Digestive system in psoriasis: an update. AB - In the original publication, the data labels are incorrect in Fig. 3. The corrected Fig. 3 is given here. PMID- 29018874 TI - Flavocoxid exerts a potent antiviral effect against hepatitis B virus. AB - INTRODUCTION: Flavocoxid is a proprietary blend of two flavonoids, baicalin and catechin, and recent evidence has shown that bioflavonoids may exert antiviral activities. The potential antiviral activity of Flavocoxid against hepatitis B virus (HBV) was evaluated. Additionally, it was investigated if Flavocoxid used in combination with Entecavir could potentiate its anti-HBV activity. MATERIALS AND METHODS: Hepatoma cells replicating HBV were treated with Flavocoxid, or Entecavir alone or in combination for up to 5 days. Viral replicative intermediates, transcripts, and cccDNA levels were evaluated in HBV-replicating cells by real-time PCR, Southern and Northern blotting. Expression profiling was performed using TaqMan low-density arrays. RESULTS: Flavocoxid treatment induced a reduction of HBV replicative intermediates, the amount of transcripts, and HBsAg levels. Flavocoxid and Entecavir combination therapy further decreased the amount of HBV replicative intermediates, compared to Flavocoxid alone. Importantly, Flavocoxid alone or in combination with Entecavir also induced a reduction of cccDNA. Gene-expression analysis showed that Flavocoxid activates type I IFNs-signaling and dampens the HBV-induced inflammatory response. CONCLUSIONS: Flavocoxid inhibits HBV replication by targeting multiple steps of viral life cycle. These results indicate that the antiviral activity of Entecavir is potentiated by Flavocoxid, suggesting that this medical food might be considered as an adjuvant for anti-HBV therapy. PMID- 29018875 TI - Human neutrophils are targets to paracoccin, a lectin expressed by Paracoccidioides brasiliensis. AB - OBJECTIVE AND DESIGN: Paracoccin (PCN), a lectin expressed by Paracoccidioides brasiliensis (Pb), is known to exert activities on the fungal biology, as well as different immune cells of myeloid origin. The aim of this study was to investigate the direct interaction of the recombinant form of the lectin (rPCN) with neutrophils, a neglected area. MATERIALS OR SUBJECTS: Freshly isolated human neutrophils from healthy donors were used. TREATMENT: Neutrophils were incubated with rPCN in vitro. METHODS: After the treatment, the production of reactive oxygen species (ROS), DNA release, IL-8, TNF, IFN-gamma, IL-10, IL-12p40, TGF beta and IL-1beta production, fungicidal ability, apoptosis and de novo protein synthesis was determined. RESULTS: rPCN was found to induce ROS production as well as DNA release. Using the ROS inhibitor, diphenyleneiodium, both ROS production and DNA release were significantly inhibited. In addition, rPCN was found to induce IL-8 and IL1-beta production, inhibit apoptosis and induce de novo protein synthesis. Addition of cycloheximide, a protein synthesis inhibitor, drastically reversed the antiapoptotic effect of rPCN. Finally, the ability to kill Pb yeasts by human neutrophils was significantly increased after rPCN stimulation. CONCLUSIONS: rPCN can alter the biology of human neutrophils increasing their fungicidal ability. Moreover, the ability of rPCN to increase DNA release and to induce suppression of neutrophil apoptosis occurs by a ROS- and de novo protein synthesis-dependent mechanism, respectively. PMID- 29018878 TI - Investigating Internalization and Intracellular Trafficking of GPCRs: New Techniques and Real-Time Experimental Approaches. AB - The ability to regulate the interaction between cells and their extracellular environment is essential for the maintenance of appropriate physiological function. For G protein-coupled receptors (GPCRs), this regulation occurs through multiple mechanisms that provide spatial and temporal control for signal transduction. One of the major mechanisms for GPCR regulation involves their endocytic trafficking, which serves to internalize the receptors from the plasma membrane and thereby attenuate G protein-dependent signaling. However, there is accumulating evidence to suggest that GPCRs can signal independently of G proteins, as well as from intracellular compartments including endosomes. It is in this context that receptor internalization and intracellular trafficking have attracted renewed interest within the GPCR field. In this chapter, we will review the current understanding and methodologies that have been used to investigate internalization and intracellular signaling of GPCRs, with a particular focus on emerging real-time techniques. These recent developments have improved our understanding of the complexities of GPCR internalization and intracellular signaling and suggest that the broader biological relevance and potential therapeutic implications of these processes remain to be explored. PMID- 29018883 TI - Author Correction: Why free choices take longer than forced choices: evidence from response threshold manipulations. AB - The authors regret that some errors that had been addressed during the proofing process were not corrected by the publisher. Most of these errors are of a stylistic nature and do not change the substance of the article. Please note, however, that the corresponding author's e-mail address is christoph.naefgen@uni tuebingen.de. We apologize for any inconvenience caused by this. PMID- 29018884 TI - Pen Torch Transillumination: Difficult Venepuncture Made Easy: Reply. PMID- 29018886 TI - Focus on nutrition and glucose control in the intensive care unit: recent advances and debates. PMID- 29018887 TI - [Prognostic importance of resection margins in multiple colorectal liver metastases]. PMID- 29018885 TI - Size and shape of the associations of glucose, HbA1c, insulin and HOMA-IR with incident type 2 diabetes: the Hoorn Study. AB - AIMS/HYPOTHESIS: Glycaemic markers and fasting insulin are frequently measured outcomes of intervention studies. To extrapolate accurately the impact of interventions on the risk of diabetes incidence, we investigated the size and shape of the associations of fasting plasma glucose (FPG), 2 h post-load glucose (2hPG), HbA1c, fasting insulin and HOMA-IR with incident type 2 diabetes mellitus. METHODS: The study population included 1349 participants aged 50-75 years without diabetes at baseline (1989) from a population-based cohort in Hoorn, the Netherlands. Incident type 2 diabetes was defined by the WHO 2011 criteria or known diabetes at follow-up. Logistic regression models were used to determine the associations of the glycaemic markers, fasting insulin and HOMA-IR with incident type 2 diabetes. Restricted cubic spline logistic regressions were conducted to investigate the shape of the associations. RESULTS: After a mean follow-up duration of 6.4 (SD 0.5) years, 152 participants developed diabetes (11.3%); the majority were screen detected by high FPG. In multivariate adjusted models, ORs (95% CI) for incident type 2 diabetes for the highest quintile in comparison with the lowest quintile were 9.0 (4.4, 18.5) for FPG, 6.1 (2.9, 12.7) for 2hPG, 3.8 (2.0, 7.2) for HbA1c, 1.9 (0.9, 3.6) for fasting insulin and 2.8 (1.4, 5.6) for HOMA-IR. The associations of FPG and HbA1c with incident diabetes were non-linear, rising more steeply at higher values. CONCLUSIONS/INTERPRETATION: FPG was most strongly associated with incident diabetes, followed by 2hPG, HbA1c, HOMA-IR and fasting insulin. The strong association with FPG is probably because FPG is the most frequent marker for diabetes diagnosis. Non-linearity of associations between glycaemic markers and incident type 2 diabetes should be taken into account when estimating future risk of type 2 diabetes based on glycaemic markers. PMID- 29018888 TI - [Non-melanoma skin cancer : Pathogenesis, prevalence and prevention]. AB - Non-melanoma skin cancer (NMSC) is the most common malignancy of the light skinned population with an enormous socioeconomic impact. Historically known as incurable under the term noli me tangere (transl. do not touch me), today various non-melanocytic cutaneous neoplasms are grouped as NMSC. The most common of these, basal cell carcinoma, squamous cell carcinoma and actinic keratoses as carcinomas in situ, are increasingly called keratinocyte carcinoma. Today, the pathogenesis and risk factors of NMSC are relatively well understood, which has led to multiple treatment options, the recognition of NMSC as an occupational disease in Germany and a variety of prevention approaches. Although there is largely general consensus in the dermatological world, knowledge of affected high risk groups in NMSC and prevention is still very low. The development of target group-oriented awareness and prevention campaigns are therefore urgently needed. PMID- 29018889 TI - [Oculocutaneous and ocular albinism]. AB - Albinism can be divided into oculocutaneous albinism (OCA) and ocular albinism (OA). In the differential diagnostics these can be distinguished from rarer syndromes with partial albinism, which are frequently associated with susceptibility to infections and neurological symptoms. The OCA is an autosomal recessive inherited disease of melanin biosynthesis, which leads to complete or partial loss of melanin in the skin, hair follicles and eyes. Of the seven currently known subtypes (OCA 1-7), four are well-characterized (OCA 1-4). These are based on gene mutations, which code for tyrosinase, a key enzyme in melanin synthesis and for further proteins. These play an important role in the catalytic activity of tyrosinase and the structure and function of melanosomes. In the presence of these subtypes, the clinical symptoms and the course of the disease show a pronounced variability, especially in the type and extent of pigmentation of the skin and hair as well as the severity of eye involvement, which makes the phenotypic classification difficult. Treatment priorities are a consistent protection from UV light for prophylaxis against skin cancer and regular preventive investigations. The ocular alterations typical for albinism necessitate timely diagnostics and care by institutions specialized in ophthalmology. Novel strategies for systemic treatment of subtypes of albinism are in preclinical testing. The OA without skin involvement shows X-linked inheritance, is much rarer and is characterized by reduced pigmentation of the retina and iris, nystagmus and macular hypoplasia, sometimes with substantial loss of visual acuity. The typical ocular symptoms of OA can be manifested to a varying extent in all forms of OCA. PMID- 29018890 TI - [Magnetic resonance imaging findings after shoulder surgery: What the radiologist needs to know]. AB - Even primary diagnostic evaluation of the shoulder is a challenge for radiologists. Many imaging findings that definitely indicate abnormal findings in the untreated shoulder should be evaluated carefully in postoperative patients. Artifacts caused by implants or metal abrasion pose considerable problems in postoperative magnetic resonance imaging (MRI). Classic approaches to minimizing artifacts caused by foreign bodies include using turbo spin echo sequences, increasing bandwidth, and reducing voxel size. In recent years, several vendors have developed dedicated pulse sequences for reducing metal artifacts. Different postoperative imaging findings will be encountered, depending on the kind of surgery done. This review article describes typical postoperative MRI findings, focusing on subacromial decompression, reconstruction of the rotator cuff, labrum procedures, and biceps tenodesis. PMID- 29018891 TI - [Depression and anxiety : Prevalence among ENT outpatients]. AB - BACKGROUND: Few data exist on the prevalence of comorbid mental disorders among ENT patients. This investigation aimed to assess the prevalence of two disorders frequent in our society, namely depression and anxiety, in patients of an ENT outpatient clinic. PATIENTS AND METHODS: During a 2-week period, 101 consecutive patients were interviewed with the Beck Depression Inventory-II (BDI II) and Beck Anxiety Inventory (BAI) screening aids. RESULTS: Of 97 evaluated tests, 38% contained indications of a psychiatric problem or mental comorbidity. The proportion of moderate and severe depressive syndromes, anxiety disorders, and combined disorders was only 11.3%. There were no significant differences between genders or in terms of acute vs. chronic ENT diseases. The highest frequency of pathological test results was observed in the group of patients with cochleovestibular disorders. An astoundingly high number of conspicuous test results were seen in patients with trivial diseases and disorders, as well as among those with chronic obstructive disorders of the nose and sinuses. CONCLUSION: The finding of a considerable prevalence of psychiatric comorbidities among ENT patients represents important information for the treating physician. BDI II and BAI were found to be reliable and easy to apply in the outpatient clinic. PMID- 29018892 TI - Novel treatment opportunities for sulfur mustard-related cancers: genetic and epigenetic perspectives. AB - Sulfur mustard (SM), also known as mustard gas, is a chemical weapon which by now has been used in many wars. The most concerning SM toxic effect is probable carcinogenicity. In this study, the genetic and epigenetic mechanisms of SM carcinogenicity, by focusing on treatment of SM-associated malignancies, particularly gene therapeutics, cancer vaccines, and epigenetic medications, have been criticized. The required data were collected through an organized search on valid scientific databases. For SM carcinogenicity due to acute or chronic exposure, the entire original and review articles were evaluated. In addition, studies on the therapeutic effects of available genetic and epigenetic medications were included. Currently, four gene therapeutics, two cancer vaccines with genetic bases, and seven epigenetic medications are available for cancer treatment. Genetic and epigenetic cancer treatments including Gendicine, Imlygic, Provenge, Cimavax-EGF, Azacitidine, Vorinostat, Romidepsin, and Belinostat will yield outstanding benefits for SM-exposed patients who suffer from cancer. PMID- 29018894 TI - Abstinence-induced withdrawal severity among adolescent smokers with and without ADHD: disentangling effects of nicotine and smoking reinstatement. AB - RATIONALE: Individuals with attention deficit hyperactivity disorder (ADHD) start smoking earlier, are more likely to progress to nicotine dependence, and have a more difficult time quitting smoking compared to their non-ADHD peers. Little is known about the underlying behavioral mechanisms associated with this increased risk, particularly at the adolescent stage. OBJECTIVE: This study aimed to assess the effects of overnight nicotine abstinence and smoking reinstatement on subjective withdrawal states in adolescent smokers with and without ADHD. METHODS: Adolescent daily smokers (27 with ADHD and 17 without ADHD) completed three experimental sessions: (1) a placebo patch followed by smoking a nicotine cigarette, (2) placebo patch followed by smoking a nicotine-free cigarette, and (3) nicotine patch followed by smoking a nicotine-free cigarette. Subjects abstained overnight before each session, and patches were administered 45 min before smoking. The primary outcome measure was a smoking withdrawal symptom questionnaire. RESULTS: ADHD smokers experienced greater difficulty concentrating and impatience/restlessness during abstinence than non-ADHD smokers. Smoking a cigarette improved abstinence-induced difficulty concentrating and restlessness, regardless of its nicotine content, and regardless of whether transdermal nicotine was received or not. CONCLUSIONS: Thus, sensorimotor aspects of smoking, rather than nicotine itself, appeared to relieve withdrawal. Although ADHD smokers report greater withdrawal symptoms than non-ADHD smokers, they responded strongly to the sensorimotor aspects of smoking during withdrawal. These findings suggest that even lighter, adolescent smokers with ADHD are vulnerable to smoking progression through altered smoking abstinence and withdrawal relief processes. PMID- 29018893 TI - Sex-specific attenuation of impulsive action by progesterone in a go/no-go task for cocaine in rats. AB - RATIONALE: Previous work indicated that progesterone (PRO) reduced impulsive choice for cocaine in female but not male rats (Smethells et al. Psychopharmacology 233:2999-3008, 2016). Impulsive action, typically measured by responding for a reinforcer during a signaled period of nonavailability of natural reinforcers, predicts initiation and escalation of drug use in animals and humans. The present study examined impulsive action for cocaine using PRO in male and female rats trained on a go/no-go task. OBJECTIVE: Rats were trained on a go/no-go task to respond for cocaine infusions (0.4 mg/kg/inf). During the "go" component, responding was reinforced on a VI 30-s schedule, whereas during the "no-go" component, withholding a response was reinforced on a differential reinforcement of other behavior (DRO) 30-s schedule. A response during the no-go component resets the DRO timer and served as a measure of impulsive action. After baseline responding was established, rats were pretreated with vehicle (VEH) or PRO (0.5 mg/kg), and DRO resets and responding during the go component for cocaine were compared in males vs. females. RESULTS: DRO resets were significantly lower following PRO treatment compared to VEH in female, but not male, rats. Response rates and overall infusions during the go component were not significantly altered by PRO in either females or males. CONCLUSION: Treatment with PRO resulted in a sex-specific reduction in impulsive action for cocaine, while not affecting cocaine self-administration. PMID- 29018895 TI - Production of indoleacetic acid by strains of the epiphytic bacteria Neptunomonas spp. isolated from the red alga Pyropia yezoensis and the seagrass Zostera marina. AB - Neptunomonas sp. BPy-1 is an epiphytic bacterium isolated from in vitro culture of the red alga Pyropia yezoensis. It uses ethanol as a sole carbon source and promotes the growth of host alga. A related bacterium, Neptunomonas sp. BZm-1, was isolated from leaves of Zostera marina found in the Yatsushiro Sea (Japan). BZm-1 showed 99% 16S rRNA sequence identity with Neptunomonas sp. BPy-1. Similar to BPy-1, BZm-1 grew in artificial seawater (ASW) medium containing ethanol or butanol. When thalli were treated with a multi-enzyme cleaner, the growth of treated thalli was retarded, but the addition of BZm-1 to the medium promoted growth. To explore the benefits of epiphytic bacteria, indoleacetic acid (IAA) production by isolated bacteria was examined under conditions of limited nutrients. Salkowski assays and GC-MS analysis revealed that both BZm-1 and BPy-1 excreted IAA during growth in ASW medium containing glucose or ethanol in the presence of tryptophan. In ASW medium containing tryptophan but lacking a carbon source, neither isolate grow, but produced IAA. ASW medium includes nitrate as the sole nitrogen source. In the absence of carbon source, different nitrogen forms in the presence of tryptophan did not affect IAA production by the two isolates. These findings indicate that IAA production by the two isolates is strictly dependent on tryptophan but less affected by carbon and nitrogen sources. Based on the different origins of BPy-1 and BZm-1, this mode of IAA production seems to be conserved among relatives of BPy-1. PMID- 29018896 TI - Hypericum perforatum extract modulates cortical plasticity in humans. AB - BACKGROUND: Hypericum perforatum (HYP) extract is one of the most commonly used complementary alternative medicines (CAMs) for the treatment of mild-to-moderate depression. Non-invasive brain stimulation protocols can be used to investigate the effect of psychoactive substances on the human brain. In this study, we explored the effect of a single dose of HYP extract (WS 5570) intake on corticospinal excitability and plasticity in humans. METHODS: Twenty-eight healthy subjects were required to intake 900 mg of either HYP extract or placebo. Cortical excitability was assessed using single and paired transcranial magnetic stimulation (TMS). The electrophysiological parameters of motor threshold, recruitment of motor-evoked potentials (MEPs), cortical silent period (CSP), short interval intracortical inhibition (SICI), and intracortical facilitation (ICF) were tested before and 2 and 5 h after the oral intake. Spinal and neuromuscular excitability and peripheral nerve excitability were measured by F response and M-wave. Cortical plasticity was induced using transcranial direct current stimulation (tDCS). Subjects received either HYP extract or placebo before anodal and cathodal tDCS of the primary motor cortex. Plasticity was assessed by MEP amplitudes. RESULTS: HYP extract reversed cathodal tDCS-induced long-term depression (LTD)-like plasticity into facilitation, as compared to placebo. HYP extract did not have a significant effect on anodal tDCS-induced plasticity and TMS measures of motor cortex and spinal/neuromuscular excitability. CONCLUSIONS: Our findings suggest that a single oral dose of HYP extract modulates cortical plasticity in healthy subjects and provide new insight into its possible mechanism of action in humans. PMID- 29018897 TI - Lack of Evidence that Soluble Urate Directly Influences Bone Remodelling: A Laboratory and Clinical Study. AB - INTRODUCTION: Numerous observational studies have reported that serum urate concentration positively correlates with bone density and reduced risk of fractures. The aim of this study was to examine whether soluble urate directly influences bone remodelling. METHODS: In laboratory studies, the in vitro effects of soluble urate were examined in osteoclast, osteoblast and osteocyte assays at a range of urate concentrations consistent with those typically observed in humans (up to 0.70 mmol/L). The clinical relevance of the in vitro assay findings was assessed using serial procollagen-1 N-terminal propeptide (P1NP) and Month 12 bone density data from a randomised controlled trial of allopurinol dose escalation in people with gout. RESULTS: Addition of urate in the RAW264.7 cell osteoclastogenesis assay led to small increases in osteoclast formation (ANOVA p = 0.018), but no significant difference in bone resorption. No significant effects on osteoclast number or activity were observed in primary cell osteoclastogenesis or resorption assays. Addition of urate did not alter viability or function in MC3T3-E1 pre-osteoblast, primary human osteoblast, or MLO-Y4 osteocyte assays. In the clinical trial analysis, reducing serum urate over a 12 month period by allopurinol dose escalation did not lead to significant changes in P1NP or differences in bone mineral density. CONCLUSION: Addition of soluble urate at physiological concentrations does not influence bone remodelling in vitro. These data, together with clinical trial data showing no effect of urate-lowering on P1NP or bone density, do not support a direct role for urate in influencing bone remodelling. PMID- 29018898 TI - Authors reply to "No, we are not-we keep forgetting the right ventricle". PMID- 29018899 TI - Langer's axillary arch: a frequent but rarely discussed anatomical variant in the radiologic literature. AB - The axillopectoral muscle is a rarely discussed variant of muscular anatomy of the axilla, with various clinical implications. We report a case of a 7-year-old girl with multiple genetic and developmental abnormalities who presented with asymmetrical right axillary bulging of unknown etiology. MRI demonstrated a small accessory axillary muscle, known as Langer's axillary arch and/or the axillopectoral muscle. Other than soft-tissue asymmetry, the patient experienced no additional related symptoms. However, this is an important variant to be aware of, as it can easily be discovered on imaging and may be a causative agent for various upper extremity symptoms that may resolve with appropriate recognition and surgical intervention. PMID- 29018900 TI - Reliable quantification of 1,2-dihydroxynaphthalene in urine using a conjugated reference compound for calibration. AB - After environmental and occupational exposure to naphthalene, 1,2 dihydroxynaphthalene (1,2-DHN) was shown to be one major metabolite in human naphthalene metabolism. However, the instability of free 1,2-DHN complicates the reliable determination of this promising biomarker in urine. To solve this stability problem, glucuronide conjugates of 1,2-DHN and the corresponding isotopically labelled D6-1,2-dihydroxynaphthalene (D6-1,2-DHN) were synthesised and applied as reference material and internal standard in a gas chromatographic tandem mass spectrometric (GC-MS/MS) method. The determination of 1- and 2 naphthol (1-MHN, 2-MHN) was included in the procedure to enable a comprehensive assessment of naphthalene metabolism and exposure. The results of the validation showed a high reliability and sensitivity of the method. The detection limits range from 0.05 to 0.16 MUg/L. Precision and repeatability were determined to range from 1.4 to 6.6% for all parameters. The simultaneous determination of 1- and 2-MHN as additional parameters besides 1,2-DHN enables the application of the method for further metabolism and kinetic studies on naphthalene. The use of glucuronide-derivative reference substances and the application of structurally matched isotopic-labelled internal standards for each substance guarantee a reliable quantification of the main naphthalene metabolites 1,2-DHN and 1- and 2 MHN. Graphical abstract Reliable quantification of 1,2-dihydroxynaphthalene in urine using a conjugated reference compound for calibration. PMID- 29018901 TI - Rapid determination of the emerging contaminant oxypurinol in surface water using solid phase extraction followed by ultra high-performance liquid chromatography with fluorescence detection. AB - A method has been developed for the trace analysis of oxypurinol that is considered as an active pharmaceutical ingredient and an emerging environmental contaminant. The method achieved the identification and quantification of oxypurinol in surface water samples utilizing solid phase extraction and ultra high-performance liquid chromatography with diode array and fluorescence detection for the first time. Four principal parameters of solid phase extraction were optimized to obtain maximum extraction efficiency. Under the isocratic elution of methanol/water (5:95, v/v) and the excitation/emission wavelength of 254/359 nm, a rapid determination was achieved in 2.0 min with good linearity of 1.05-351 MUg/L (coefficient of determination above 0.9998). The limit of detection and method detection limit were 0.210 MUg/L and 1.34 ng/L, respectively. Precision of the method was evaluated and a relative standard deviation value of 3.3% was obtained for analyses of six replicate spiking blank samples (200 mL, 176 ng/L) according to the overall proposed procedure. The method showed a great anti-interference ability and average spiked recoveries of oxypurinol in five surface water samples were in the range of 94.5-111%. The ability of the method to detect and correctly identify oxypurinol can significantly promote investigation on the occurrence of oxypurinol in water and its potential (eco-)toxicological effects. Graphical abstract Quantification of the emerging contaminant oxypurinol in s urface water using SPE/UHPLC-FLD. PMID- 29018902 TI - The P/N (Positive-to-Negative Links) Ratio in Complex Networks-A Promising In Silico Biomarker for Detecting Changes Occurring in the Human Microbiome. AB - Relatively little progress in the methodology for differentiating between the healthy and diseased microbiomes, beyond comparing microbial community diversities with traditional species richness or Shannon index, has been made. Network analysis has increasingly been called for the task, but most currently available microbiome datasets only allows for the construction of simple species correlation networks (SCNs). The main results from SCN analysis are a series of network properties such as network degree and modularity, but the metrics for these network properties often produce inconsistent evidence. We propose a simple new network property, the P/N ratio, defined as the ratio of positive links to the number of negative links in the microbial SCN. We postulate that the P/N ratio should reflect the balance between facilitative and inhibitive interactions among microbial species, possibly one of the most important changes occurring in diseased microbiome. We tested our hypothesis with five datasets representing five major human microbiome sites and discovered that the P/N ratio exhibits contrasting differences between healthy and diseased microbiomes and may be harnessed as an in silico biomarker for detecting disease-associated changes in the human microbiome, and may play an important role in personalized diagnosis of the human microbiome-associated diseases. PMID- 29018903 TI - Clinical Significance of DXA and HR-pQCT in Autosomal Dominant Osteopetrosis (ADO II). AB - The main hallmark of high bone mass (HBM) disorders is increased bone mineral density, potentially visible in conventional radiographs and quantifiable by other radiographic methods. While one of the most common forms of HBM is CLCN7 related autosomal dominant osteopetrosis type II (ADO II), there is no consensus on diagnostic thresholds. We therefore wanted to assess whether CLCN7 osteopetrosis patients differ from benign HBM cases in terms of (1) bone mineral density, (2) bone structure, and (3) microarchitectural abnormalities. 16 patients meeting the criteria of HBM (DXA T/Z-score >= 2.5 at all sites) were included in this retrospective study. Osteologic assessment using dual-energy X ray absorptiometry (DXA), high-resolution peripheral quantitative computed tomography (HR-pQCT), and serum analyses was performed. The presence of CLCN7 and/or other HBM gene mutations affecting bone mass were tested using a custom designed bone panel. While a DXA threshold for ADO II could be implemented (DXA Z score >= + 6.0), the differences in bone microarchitecture were of lesser extent compared to the benign HBM group. All adult patients with ADO II suffered from elevated fracture rates independent from Z-score. In HR-pQCT, structural alterations, such as bone islets were found only inconsistently. In cases of HBM, a DXA Z-score >= 6 may be indicative for an inheritable HBM disorder, such as ADO II. Microarchitectural bone alterations might represent local microfracture repair or accumulation of cartilage remnants due to impaired osteoclast function, but seem not to be correlated with fracture risk. PMID- 29018904 TI - Kyphosis and incident falls among community-dwelling older adults. AB - : Hyperkyphosis commonly affects older persons and is associated with morbidity and mortality. Many have hypothesized that hyperkyphosis increases fall risk. Within this prospective study of older adults, kyphosis was significantly associated with incident falls over 1 year. Measures of hyperkyphosis could enhance falls risk assessments during primary care office visits. INTRODUCTION: To determine the association between four measures of kyphosis and incident and injurious falls in older persons. METHODS: Community-dwelling adults aged 65 and older (n = 72) residing in southern California were invited to participate in a prospective cohort study. Participants had kyphosis assessed four ways. Two standing measures included a flexicurve ruler placed against the back to derive a kyphotic index and the Debrunner kyphometer, a protractor used to measure the kyphotic angle in degrees. Two lying measures included the blocks method (number of 1.7 cm blocks needed to achieve a neutral head position while lying supine) and traditional Cobb angle calculation derived from DXA based lateral vertebral assessment. Baseline demographic, clinical, and other health information (including a timed up and go (TUG) test) were assessed at a clinic visit. Participants were followed monthly through email or postcard for 1 year, with falls outcomes confirmed through telephone interview. RESULTS: Mean age was 77.8 (+/- 7.1) among the 52 women and 20 men. Over 12 months, 64% of participants experienced at least one incident fall and 35% experienced an injurious fall. Each standard deviation increase in kyphosis resulted in more than doubling the adjusted odds of an incident fall, even after adjusting for TUG. Odds of injurious falls were less consistent across measures; after adjusting for TUG, only the blocks method was associated with injurious falls. CONCLUSIONS: Each kyphosis measure was independently associated with incident falls. Findings were inconsistent for injurious falls; the blocks measure suggested the strongest association. If these findings are replicated, the blocks measure could be incorporated into office visits as a quick and efficient tool to identify patients at increased fall risk. PMID- 29018905 TI - CYP109E1 is a novel versatile statin and terpene oxidase from Bacillus megaterium. AB - CYP109E1 is a cytochrome P450 monooxygenase from Bacillus megaterium with a hydroxylation activity for testosterone and vitamin D3. This study reports the screening of a focused library of statins, terpene-derived and steroidal compounds to explore the substrate spectrum of this enzyme. Catalytic activity of CYP109E1 towards the statin drug-precursor compactin and the prodrugs lovastatin and simvastatin as well as biotechnologically relevant terpene compounds including ionones, nootkatone, isolongifolen-9-one, damascones, and beta damascenone was found in vitro. The novel substrates induced a type I spin-shift upon binding to P450 and thus permitted to determine dissociation constants. For the identification of conversion products by NMR spectroscopy, a B. megaterium whole-cell system was applied. NMR analysis revealed for the first time the ability of CYP109E1 to catalyze an industrially highly important reaction, the production of pravastatin from compactin, as well as regioselective oxidations generating drug metabolites (6'beta-hydroxy-lovastatin, 3'alpha-hydroxy simvastatin, and 4"-hydroxy-simvastatin) and valuable terpene derivatives (3 hydroxy-alpha-ionone, 4-hydroxy-beta-ionone, 11,12-epoxy-nootkatone, 4(R)-hydroxy isolongifolen-9-one, 3-hydroxy-alpha-damascone, 4-hydroxy-beta-damascone, and 3,4 epoxy-beta-damascone). Besides that, a novel compound, 2-hydroxy-beta damascenone, produced by CYP109E1 was identified. Docking calculations using the crystal structure of CYP109E1 rationalized the experimentally observed regioselective hydroxylation and identified important amino acid residues for statin and terpene binding. PMID- 29018906 TI - The performance of classification criteria for juvenile spondyloarthropathies. AB - Juvenile spondyloarthropathies (JSpA) are a group of rheumatologic diseases with a disease onset before 16; characterized with enthesitis, lower extremity oligoarthritis, involvement of the axial skeleton and HLA B27 positivity. The diversity of classification criteria along with the phenotype heterogeneity makes the classification of JSpA challenging. The aim of our study was to evaluate the performance of the pre-determined and recently proposed classification criteria for JSpA. The study group consisted of 113 patients with JSpA and 150 patients with juvenile idiopathic arthritis (JIA). Eligible criteria for JSpA were applied to all of the enrolled patients. The analysis of sensitivity, specificity and the kappa index were used to verify the performance of the JSpA criteria. The Amor criteria showed the highest sensitivity (98.2%) while the ASAS criteria for the axial SpA had highest specificity (100%). The sensitivity and specificity of the remaining criteria were: 93.8 and 63.8% for ESSG, 95.6 and 62.7% for Garmisch Partenkirchen, 91.2 and 75.3% for ASAS criteria for peripheral SpA, respectively. Criteria proposed by our group showed the high sensitivity, specificity and kappa value: 90.3, 90.7, 0.843%, respectively. We suggest that criteria proposed by us could be used in the classification of JSpA. However, neither the pre-determined nor the new criteria are totally adequate and efficacious for the classification and diagnosis of this disease. The evaluation of the validity and reliability of proposed criteria in multicentric studies are mandatory, to increase its utility in routine clinical practice. PMID- 29018907 TI - MRI sport-specific pulley imaging. AB - OBJECTIVE: We aim to create a novel MRI methodology that employs sport-specific stress views for imaging finger pulley injuries in the evaluation of post operative healing effectiveness. The goal is to measure the bone to tendon distance (BTD), which is the current standard for determining pulley injuries. MATERIALS AND METHODS: The athlete was imaged in a crimp-grip stressed position to emulate sport-specific biomechanics. A Gradient Echo technique was modified to maximize the signal to noise ratio and minimize distortion near the bone and tendon, simplifying the determination of the BTD. RESULTS: A stress-crimped hand position is imaged in less than one half-minute to enable diagnostic visualization of a normal proximal phalanx' bone and tendon via measurement of their BTD. CONCLUSION: This novel stress methodology allows for sport-specific imaging, which is ideal for determining functional compromise of the hand's pulley mechanism. Surgical outcomes may be more sensitively compared when using stress views, and these comparisons may then direct optimal repair technique. Future studies will utilize this technique to attempt early-stage detection of pulley injuries prior to complete rupture. PMID- 29018908 TI - Characterization of arthralgia induced by PD-1 antibody treatment in patients with metastasized cutaneous malignancies. AB - BACKGROUND: PD-1 antibodies (PD1ab) are increasingly used in metastatic melanoma and other malignancies. Arthralgia is an underestimated side effect of PD-1 antibody treatment with unknown cause. Our aim was to characterize PD1ab-induced arthralgia. PATIENTS AND METHODS: We retrospectively included patients with metastatic cutaneous malignancies treated with pembrolizumab or nivolumab +/- ipilimumab at the National Center for Tumor Diseases (Heidelberg) between 01/2013 and 09/2016. Arthralgia was characterized by laboratory diagnostics, imaging, and if indicated, rheumatologic consultation. RESULTS: 26 of 195 patients (13.3%) developed arthralgia. The median onset of symptoms was 100 days (7-780 days). Most frequently, arthralgia involved large joints (shoulders, knees) in a predominantly symmetrical pattern. Only two patients were seropositive for rheumatoid factor and/or anti-citrullinated protein antibodies. Ten patients developed the clinical picture of arthritis, with seven of them showing synovitis in MRI or PET/CT. Five patients showed inflammation in joints pre-damaged by osteoarthritis. In 11 patients arthralgia could not be specified. The majority of patients was satisfactorily treated with non-steroidal anti-inflammatory drugs (NSAIDs), 23.1% required additional low-dose corticosteroids and only 7.6% of our patients received further immunosuppressive treatment. Patients with arthralgia showed a better treatment response and improved PFS and OS. CONCLUSION: Arthralgia is frequent during PD1ab treatment. The clinical picture varies between synovitis of predominantly large joints, progressive osteoarthritis and arthralgia without evident joint damage. Vast majority of cases can be satisfactorily managed by NSAID and/or low-dose corticosteroids. PMID- 29018909 TI - The Depth from the Skin to the Celiac Artery Measured Using Computed Tomography is a Simple Predictive Index for Longer Operation Time During Laparoscopic Distal Gastrectomy. AB - BACKGROUND: Body mass index (BMI) is commonly used to classify obesity. However, BMI does not always reflect the degree of visceral fat. This study aimed to clarify the usefulness of measuring the depth from the skin to the celiac artery using computed tomography, as a simple predictive index for longer operation time during laparoscopic distal gastrectomy (LDG). METHODS: From September 2012 to March 2016, 66 patients who underwent LDG with D1+ lymph node dissection were included. The depth from the skin to the bifurcation of the celiac artery was defined as 'skin-to-celiac artery distance (SCD).' The patients were divided into two groups based on the median operation time. [Time scenarios from omentum incision to specimen extirpation and infrapyloric and suprapancreatic lymph node dissections (I-LND, S-LND) were assessed.] The factors eliciting a longer operation time than the median operation time were investigated. RESULTS: From omentum incision to specimen extirpation, BMI, thickness of subcutaneous fat (TSF), and SCD (P = 0.002, P = 0.039, P < 0.001) were the factors associated with longer operation time. Furthermore, BMI, TSF, and SCD in I-LND (P = 0.008, P = 0.022, P < 0.001) and BMI and SCD in S-LND (P < 0.001, P < 0.001) were associated with longer operation time. The multivariate analysis showed that a long SCD was the only significant independent factor to predict an operation time longer than the median operation time (P = 0.001). The best cutoff level of SCD calculated using the receiver operating characteristic curve was 88 mm. CONCLUSIONS: This study demonstrated that SCD is a simple predictive index for longer operation time during LDG. PMID- 29018910 TI - Incidence of delayed union one year after peri-acetabular osteotomy based on computed tomography. AB - BACKGROUND: Pubic bone nonunion and delayed union are reported as post-operative complications after peri-acetabular osteotomy (PAO). However, few studies have determined the incidence of delayed union using computed tomography (CT) scans. This study aimed to determine the incidence of delayed union at one year after PAO using X-ray and CT scans. METHODS: We performed a retrospective review of 150 hips in 132 consecutive patients with acetabular dysplasia who underwent PAO between January 2012 and June 2016 and evaluated 107 hips for which pelvic CT scans taken at one year after PAO were available. Clinical evaluations included age at surgery, weight, body mass index (BMI) and history. Radiographic evaluations were to assess pubic, ischial and iliac delayed union at one year post-operatively. RESULTS: Based on X-ray analysis, the incidence of delayed union in the pubic, ischial and iliac bones was 11.2% (12 hips), 5.6% (6 hips) and 0% (0 hips), respectively, and20.6% (22 hips), 8.4% (9 hips) and 0% (0 hips), respectively, based on CT scans. CONCLUSION: The incidence of delayed union of the pubis and ischium at one year after PAO according to CT scans was higher than that based on X-ray imaging. CT scans are useful in patients with some symptoms at the osteotomy site. LEVEL OF EVIDENCE: Level III. PMID- 29018911 TI - Postoperative Bleeding After Laparoscopic Pancreaticoduodenectomy: the Achilles' Heel? AB - BACKGROUND: Laparoscopic pancreaticoduodenectomy (LPD) is technically demanding, and its impact on postoperative outcomes remains controversial. OBJECTIVE: To compare short-term outcomes between laparoscopic versus open pancreaticoduodenectomy (OPD) in order to assess the safety of LPD. METHODS: From 2002 to 2014, all consecutive patients undergoing LPD or OPD at two tertiary centers were retrospectively analyzed. Patients were matched for demographics, comorbidities, pathological diagnosis, and pancreatic texture. Results for the two groups were compared for postoperative outcomes. RESULTS: Sixty-five LPD were performed and compared to 290 OPD. In the whole population, postoperative pancreatic fistula (PF) was higher in the LPD group, but the proportion of ampullary adenocarcinoma (25 vs. 10%, p = 0.004) and soft pancreatic parenchyma (52 vs. 38%, p = 0.001) were higher in the LDP group. After matching (n = 65), LPD was associated with longer operative time (429 vs. 328 min, p < 0.001) and lower blood loss (370 vs. 515 mL, p = 0.047). The PF rate and its severity were similar (33 vs. 27%, p = 0.439, p = 0.083) in the two groups. However, both complications (78 vs. 71%, p = 0.030) and major complications (40 vs. 23%, p = 0.033) were more frequent in the LPD group. LPD patients experience more postoperative bleeding (21 vs. 14%, p = 0.025) compared to their open counterparts. In multivariate analysis, perioperative transfusion (OR = 5 IC 95% (1.5-16), p = 0.008), soft pancreas (OR = 2.5 IC 95% (1.4-4.6), p = 0.001), and ampullary adenocarcinoma (OR = 2.6 IC 95% (1.2-5.6), p = 0.015) were independent risks factors of major complications. CONCLUSION: Despite lower blood loss and lower intraoperative transfusion, LPD leads to higher rate of postoperative complications with postoperative bleeding in particular. PMID- 29018912 TI - A Nationwide Population-Based Study on the Survival of Patients with Pancreatic Neuroendocrine Tumors in The Netherlands. AB - BACKGROUND: Large population-based studies give insight into the prognosis and treatment outcomes of patients with pancreatic neuroendocrine tumors (pNETs). Therefore, we provide an overview of the treatment and related survival of pNET in the Netherlands. METHODS: Patients diagnosed with pNET between 2008 and 2013 from the Netherlands Cancer Registry were included. Patient, tumors and treatment characteristics were reported. Survival analyses with log-rank testing were performed to compare survival. RESULTS: In total, 611 patients were included. Median follow-up was 25.7 months, and all-cause mortality was 42%. Higher tumor grade and TNM stage were significantly associated with worse survival in both the overall and metastasized population. The effect of distant metastases on survival was more significant in lower tumor stages (T1-3 p < 0.05, T4 p = 0.074). Resection of the primary tumor was performed in 255 (42%) patients. Patients who underwent surgery had the highest 5-year survival (86%) compared to PRRT (33%), chemotherapy (21%), targeted therapy and somatostatin analogs (24%) (all p < 0.001). Patients with T1M0 tumors (n = 115) showed favorable survival after surgical resection (N = 95) compared to no therapy (N = 20, p = 0.008). Resection also improved survival significantly in patients with metastases compared to other treatments (all p > 0.05). Without surgery, PRRT showed the best survival curves in patients with distant metastases. Grade 3 tumors and surgical resection were independently associated with survival (HR 7.23 and 0.12, respectively). CONCLUSION: Surgical resection shows favorable outcome for all pNET tumors, including indolent tumors and tumors with distant metastases. Prospective trials should be initiated to confirm these results. PMID- 29018915 TI - [Non-cryoconserving storage strategies for fresh osteochondral allografts]. AB - BACKGROUND: The clinical outcome of fresh allogeneic osteochondral allografts (OCA) is greatly dependent on the number of viable chondrocytes at the time of implantation. The selection and preparation of a suitable recipient can be very time-consuming and the number of tissue donors is greatly limited; therefore, the preservation of high allograft viability before transplantation is a focal point of current research. OBJECTIVE: The objective of this review is to give an overview of established storage strategies for OCA and to serve as a decision making aid for German clinics in the choice of a suitable storage strategy. MATERIAL AND METHODS: A search of the literature published between January 2002 and May 2017 was independently performed by two persons with respect to original works on storage strategies of OCA with a focus on storage medium, use of fetal bovine serum, storage temperature and change of medium. A total of 20 suitable studies were selected for this review. RESULTS: Based on the current studies a clearly superior storage solution could not be identified; however, storage at 4 degrees C seems to give better results with respect to cell viability than storage at 37 degrees C. High chondrocyte viability rates after 28 days of storage were also achieved using media without the addition of fetal bovine serum. CONCLUSION: A major difficulty in comparing the relevant studies on storage solutions is that multiple aspects in the study design varied between the studies. Due to this no definite conclusion on what the ideal storage strategy should look like could be drawn. Further studies are needed to conclusively show whether cell culture medium-based storage solutions are truly superior to those based on Ringer-lactate solutions. PMID- 29018914 TI - The Effect of a Surgery Residency Program and Enhanced Educational Activities on Trauma Mortality in Sub-Saharan Africa. AB - INTRODUCTION: To address the need for more surgical providers in low-resource settings, a collaboration to create a surgical residency-training program for local Malawian physicians was established in 2009. This study sought to describe the short-term independent effect of a surgical residency program on trauma mortality at a tertiary trauma center in sub-Saharan Africa. METHODS: We conducted a retrospective analysis of all patients recorded in the trauma surveillance registry of Kamuzu Central Hospital in Lilongwe, Malawi, from 2009 (three residents) through 2014 (11 residents). Log-binominal regression modeling was used to compare the risk ratio of death compared to the referent year of 2009, when the program was started, after adjusting for relevant covariates. Primary injury type was used as a surrogate for injury severity. RESULTS: In total, 82,534 patients were recorded into the KCH Trauma Registry during the study period. Mean age was 23.1 years (SD 15.7) with a male preponderance (72.1%). Trauma patient volume increased from 8725 patients in 2009 to 15,998 patients in 2014. Each year had a significantly decreased risk of death compared to 2009 when adjusted for primary injury type, age, and gender, with an adjusted risk ratio of 0.73 (95% CI 0.58, 0.90) in 2010 and 0.52 (95% CI 0.43, 0.62) in 2014. CONCLUSION: The global burden of surgical diseases cannot be attenuated in the presence of an inadequate surgical workforce. After institution of a surgery residency program, adjusted injury-associated mortality decreased each year despite substantial increases in trauma patient volume. In low-resource settings, establishment of a surgical residency program significantly improves trauma associated outcomes. PMID- 29018917 TI - In Vitro Response of Rumen Microbiota to the Antimethanogenic Red Macroalga Asparagopsis taxiformis. AB - The red macroalga Asparagopsis taxiformis has been shown to significantly decrease methane production by rumen microbial communities. This has been attributed to the bioaccumulation of halogenated methane analogues produced as algal secondary metabolites. The objective of this study was to evaluate the impact of A. taxiformis supplementation on the relative abundance of methanogens and microbial community structure during in vitro batch fermentation. Addition of A. taxiformis (2% organic matter) or the halogenated methane analogue bromoform (5 MUM) reduced methane production by over 99% compared to a basal substrate-only control. Quantitative PCR confirmed that the decrease in methane production was correlated with a decrease in the relative abundance of methanogens. High throughput 16S ribosomal RNA gene amplicon sequencing showed that both treatments reduced the abundance of the three main orders of methanogens present in ruminants (Methanobacteriales, Methanomassiliicoccales and Methanomicrobiales). Shifts in bacterial community structure due to the addition of A. taxiformis and 5 MUM bromoform were similar and concomitant with increases in hydrogen concentration in the headspace of the fermenters. With high potency and broad spectrum activity against rumen methanogens, A. taxiformis represents a promising natural strategy for reducing enteric methane emissions from ruminant livestock. PMID- 29018913 TI - Meeting report of the 8th International Conference on cGMP "cGMP: generators, effectors, and therapeutic implications" at Bamberg, Germany, from June 23 to 25, 2017. AB - Although the Nobel Prize for the discovery of nitric oxide (NO) dates back almost 20 years now, the knowledge about cGMP signaling is still constantly increasing. It looks even so that our understanding of the role of the soluble guanylyl cyclase (sGC) and particulate guanylyl cyclase (pGC) in health and disease is in many aspects at the beginning and far from being understood. This holds even true for the therapeutic impact of innovative drugs acting on both the NO/sGC and the pGC pathways. Since cGMP, as second messenger, is involved in the pathogenesis of numerous diseases within the cardiovascular, pulmonary, renal, and endocrine systems and also plays a role in neuronal, sensory, and tumor processes, drug applications might be quite broad. On the 8th International Conference on cGMP, held in Bamberg, Germany, world leading experts came together to discuss these topics. All aspects of cGMP research from the basic understanding of cGMP signaling to clinical applicability were discussed in depth. In addition, present and future therapeutic applications of cGMP-modulating pharmacotherapy were presented ( http://www.cyclicgmp.net/index.html ). PMID- 29018918 TI - [Report of the Working Group on Osseous, Joint and Soft Tissue Pathology : DGP conference on 22nd June 2017, Erlangen]. PMID- 29018916 TI - Potential applications of biosurfactant rhamnolipids in agriculture and biomedicine. AB - Rhamnolipids have recently emerged as promising bioactive molecules due to their novel structures, diverse and versatile biological functions, lower toxicity, higher biodegradability, as well as production from renewable resources. The advantages of rhamnolipids make them attractive targets for research in a wide variety of applications. Especially rhamnolipids are likely to possess potential applications of the future in areas such as biomedicine, therapeutics, and agriculture. The purpose of this mini review is to provide a comprehensive prospective of biosurfactant rhamnolipids as potential antimicrobials, immune modulators, and virulence factors, and anticancer agents in the field of biomedicine and agriculture that may meet the ever-increasing future pharmacological treatment and food safety needs in human health. PMID- 29018919 TI - Nomenclature in Ventral Hernia Repair. PMID- 29018920 TI - Pro-inflammatory dietary pattern is associated with fractures in women: an eight year longitudinal cohort study. AB - : In this study, during 8 years of follow-up, we reported that higher dietary inflammatory index values were associated with a higher risk of incident fractures in women, but not in men, after adjusting for potential confounders. INTRODUCTION: Inflammation is a key risk factor for many adverse outcomes in older people. While diet is a potential source of inflammation, little is known about the impact of inflammatory diet on fractures. Thus, we investigated whether higher Dietary Inflammatory Index (DII)TM (r) scores are associated with fractures in a cohort of North American people. METHODS: This longitudinal study with a follow-up of 8 years included 3648 participants (1577 males and 2071 females; mean age = 60.6 years) with/at risk of knee osteoarthritis participating with in the Osteoarthritis Initiative. DII scores were calculated using the validated Block Brief 2000 Food Frequency Questionnaire, categorized into sex specific quintiles. Information on fractures was obtained through self-reported history of fractures at hip, spine, and forearm. The relationship between baseline DII score and incident fracture was assessed through a Cox's regression analysis, adjusted for potential baseline confounders, and reported as hazard ratios (HRs). RESULTS: During 8 years of follow-up, 560 individuals developed fractures (15.4%). Adjusting for 10 potential confounders, women in the highest DII score quintile (i.e., most pro-inflammatory diet) had a significantly higher risk for fractures (HR = 1.46; 95% CI = 1.02-2.11) compared to women in the lowest quintile. An increase in one standard deviation of DII scores significantly predicted fracture onset in women (adjusted HR = 1.14; 95% CI = 1.02-1.27). The association between DII score and fractures was not significant among men or in the sample as whole. CONCLUSION: Pro-inflammatory diet is associated with a higher incidence of fractures in women but not men. PMID- 29018921 TI - Genetics of trehalose biosynthesis in desert-derived Aureobasidium melanogenum and role of trehalose in the adaptation of the yeast to extreme environments. AB - Melanin plays an important role in the stress adaptation of Aureobasidium melanogenum XJ5-1 isolated from the Taklimakan desert. A trehalose-6-phosphate synthase gene (TPS1 gene) was cloned from K5, characterized, and then deleted to determine the role of trehalose in the stress adaptation of the albino mutant K5. No stress response element and heat shock element were found in the promoter of the TPS1 gene. Deletion of the TPS1 gene in the albino mutant rendered a strain DT43 unable to synthesize any trehalose, but DT43 still could grow in glucose, suggesting that its hexokinase was insensitive to inhibition by trehalose-6 phosphate. Overexpression of the TPS1 gene enhanced trehalose biosynthesis in strain ET6. DT43 could not grow at 33 degrees C, whereas K5, ET6, and XJ5-1 could grow well at this temperature. Compared with K5 and ET6, DT43 was highly sensitive to heat shock treatment, high oxidation, and high desiccation, but all the three strains demonstrated the same sensitivity to UV light and high NaCl concentration. Therefore, trehalose played an important role in the adaptation of K5 to heat shock treatment, high oxidation, and high desiccation. PMID- 29018922 TI - Long-Term Follow-Up of Retromuscular Incisional Hernia Repairs: Recurrence and Quality of Life. AB - PURPOSE: Incisional hernia repair (IHR) with a mesh is necessary to achieve low recurrence rates and pain relief. In the short term, quality of life (QoL) is restored by IHR. Two centers pioneered the IHR in Sweden with the highly standardized Rives-Stoppa technique using a retromuscular mesh. We assessed long term follow-up of recurrence rate and QoL. METHODS: Medical records were searched for IHRs performed from 1998 to 2006 and included living patients with midline repairs. Questionnaires about physical status, complaints, and QoL (SF-36) were mailed, offering a clinical examination. Assessment of medical records of later surgery was performed in 2015. RESULTS: Three hundred and one patients with midline incisional repairs were identified, and 217 accepted participation. Of these, 103 attended a clinical examination. Follow-up was 7 years until examination and 11 years to reassessment of medical records. In 26%, recurrent hernias were repaired. Postoperative complications were 26% Clavien-Dindo grade I II and 1% grade III-IV. Mesh infections occurred in 1.4% without mesh removals, and 4% were reoperated because of complications. Overall recurrence rate was 8.1% and two-third of which were diagnosed at clinical examination. Recurrence after primary and recurrent hernia repair was 7.1 and 10.9%, respectively. Of all patients, 80% were satisfied; dissatisfaction was primarily caused by recurrence and chronic pain. SF-36 scores were 0.2 SD lower than the norm in all subscales, similar to those with 1-2 chronic conditions. CONCLUSIONS: Midline retromuscular mesh IHR has a low long-term recurrence rate even after recurrent repair. Patient satisfaction was high although QoL was reduced. PMID- 29018923 TI - Is drug-induced bone loss acceptable in premenopausal women? A practical fracture risk modeling exercise. AB - : Premenopausal bone loss increases fracture risk later in life. Depending on peak values, varying degrees of bone mass and microarchitectural loss can be tolerated. We suggest that risk-benefit assessments of drugs that cause premenopausal bone loss be individualized considering baseline status and subsequent BMD and TBS loss. INTRODUCTION: It is logical that drug-induced loss of bone mass and microarchitecture in young adults increase fracture risk later in life. However, no existing data quantify how drug-induced bone loss in younger adults impacts fracture risk later in life. As such, no guidance exists to address the question "How much, if any, drug-induced bone loss in premenopausal women is acceptable?" Thus, we performed a systematic fracture risk modeling exercise examining various degrees of bone loss, and estimated the impact on 10 year major osteoporosis-related fracture risk later in life. METHODS: The FRAX(r) tool was used in conjunction with BMD and trabecular bone score (TBS) adjustment to estimate major osteoporotic fracture probability later in life resulting from varying degrees of hypothetical premenopausal drug-induced BMD and TBS loss. The resulting 10-year fracture probabilities were assessed against the US and the UK treatment guidance to determine the amount of premenopausal BMD and TBS loss that would result in a recommendation to initiate medical treatment to reduce fracture risk later in life that would not otherwise have been recommended in the absence of premenopausal bone loss. RESULTS: For women whose peak bone mass is between the 5th and 50th percentiles, varying degrees of BMD and TBS loss could be tolerated without reaching treatment thresholds. The degree of tolerable bone loss was primarily dependent on baseline bone status. Those whose peak BMD and TBS are in the 50th percentile or above could tolerate a 10% reduction in BMD and TBS without reaching treatment thresholds by age 75, whereas those in the 5th percentile would reach treatment thresholds by age 75 with no drug-induced reduction in BMD or TBS. Women in the 25th percentile could tolerate a 4% BMD loss and 2% TBS decline without reaching treatment thresholds by age 75. CONCLUSIONS: For clinicians and regulatory bodies to assess the consequence of drug-induced premenopausal bone loss, we propose an individualized approach considering both loss of BMD and TBS in concert with baseline bone status and the resultant effect on fracture risk in later life using the assumption that such losses are irreversible. PMID- 29018924 TI - Rapid volumetric photoacoustic tomographic imaging with a Fabry-Perot ultrasound sensor depicts peripheral arteries and microvascular vasomotor responses to thermal stimuli. AB - PURPOSE: To determine if a new photoacoustic imaging (PAI) system successfully depicts (1) peripheral arteries and (2) microvascular circulatory changes in response to thermal stimuli. METHODS: Following ethical permission, 8 consenting subjects underwent PAI of the dorsalis pedis (DP) artery, and 13 completed PAI of the index fingertip. Finger images were obtained after immersion in warm (30-35 degrees C) or cold (10-15 degrees C) water to promote vasodilation or vasoconstriction. The PAI instrument used a Fabry-Perot interferometeric ultrasound sensor and a 30-Hz 750-nm pulsed excitation laser. Volumetric images were acquired through a 14 * 14 * 14-mm volume over 90 s. Images were evaluated subjectively and quantitatively to determine if PAI could depict cold-induced vasoconstriction. The full width at half maximum (FWHM) of resolvable vessels was measured. RESULTS: Fingertip vessels were visible in all participants, with mean FWHM of 125 MUm. Two radiologists used PAI to correctly identify vasoconstricted fingertip capillary beds with 100% accuracy (95% CI 77.2-100.0%, p < 0.001). The number of voxels exhibiting vascular signal was significantly smaller after cold water immersion (cold: 5263 voxels; warm: 363,470 voxels, p < 0.001). The DP artery was visible in 7/8 participants (87.5%). CONCLUSION: PAI achieves rapid, volumetric, high-resolution imaging of peripheral limb vessels and the microvasculature and is responsive to vasomotor changes induced by thermal stimuli. KEY POINTS: * Fabry-Perot interferometer-based photoacoustic imaging (PAI) generates volumetric, high-resolution images of the peripheral vasculature. * The system reliably detects thermally induced peripheral vasoconstriction (100% correct identification rate, p < 0.001). * Vessels measuring less than 100 MUm in diameter can be depicted in vivo. PMID- 29018925 TI - The diagnostic performance of shear-wave elastography for liver fibrosis in children and adolescents: A systematic review and diagnostic meta-analysis. AB - OBJECTIVE: To assess the diagnostic performance of shear-wave elastography for determining the severity of liver fibrosis in children and adolescents. METHODS: An electronic literature search of PubMed and EMBASE was conducted. Bivariate modelling and hierarchical summary receiver-operating-characteristic modelling were performed to evaluate the diagnostic performance of shear-wave elastography. Meta-regression and subgroup analyses according to the modality of shear-wave imaging and the degree of liver fibrosis were also performed. RESULTS: Twelve eligible studies with 550 patients were included. Shear-wave elastography showed a summary sensitivity of 81 % (95 % CI: 71-88) and a specificity of 91 % (95 % CI: 83-96) for the prediction of significant liver fibrosis. The number of measurements of shear-wave elastography performed was a significant factor influencing study heterogeneity. Subgroup analysis revealed shear-wave elastography to have an excellent diagnostic performance according to each degree of liver fibrosis. Supersonic shear imaging (SSI) had a higher sensitivity (p<.01) and specificity (p<.01) than acoustic radiation force impulse imaging (ARFI). CONCLUSIONS: Shear-wave elastography is an excellent modality for the evaluation of the severity of liver fibrosis in children and adolescents. Compared with ARFI, SSI showed better diagnostic performance for prediction of significant liver fibrosis. KEY POINTS: * Shear-wave elastography is beneficial for determining liver fibrosis severity in children. * Shear-wave elastography showed summary sensitivity of 81 %, specificity of 91 %. * SSI showed better diagnostic performance than ARFI for significant liver fibrosis. PMID- 29018926 TI - Optimisation of window settings for traditional and noise-optimised virtual monoenergetic imaging in dual-energy computed tomography pulmonary angiography. AB - OBJECTIVES: To define optimal window settings for displaying virtual monoenergetic images (VMI) of dual-energy CT pulmonary angiography (DE-CTPA). METHODS: Forty-five patients who underwent clinically-indicated third-generation dual-source DE-CTPA were retrospectively evaluated. Standard linearly-blended (M_0.6), 70-keV traditional VMI (M70), and 40-keV noise-optimised VMI (M40+) reconstructions were analysed. For M70 and M40+ datasets, the subjectively best window setting (width and level, B-W/L) was independently determined by two observers and subsequently related with pulmonary artery attenuation to calculate separate optimised values (O-W/L) using linear regression. Subjective evaluation of image quality (IQ) between W/L settings were assessed by two additional readers. Repeated measures of variance were performed to compare W/L settings and IQ indices between M_0.6, M70, and M40+. RESULTS: B-W/L and O-W/L for M70 were 460/140 and 450/140, and were 1100/380 and 1070/380 for M40+, respectively, differing from standard DE-CTPA W/L settings (450/100). Highest subjective scores were observed for M40+ regarding vascular contrast, embolism demarcation, and overall IQ (all p<0.001). CONCLUSIONS: Application of O-W/L settings is beneficial to optimise subjective IQ of VMI reconstructions of DE-CTPA. A width slightly less than two times the pulmonary trunk attenuation and a level approximately of overall pulmonary vessel attenuation are recommended. KEY POINTS: * Application of standard window settings for VMI results in inferior image perception. * No significant differences between B-W/L and O-W/L for M70/M40+ were observed. * O-W/L for M70 were 450/140 and were 1070/380 for M40+. * Improved subjective IQ characteristics were observed for VMI displayed with O W/L. PMID- 29018929 TI - Dumbbell-shaped atypical teratoid rhabdoid tumor in the cervical spine mimicking schwannoma. PMID- 29018927 TI - Whole body magnetic resonance in indolent lymphomas under watchful waiting: The time is now. AB - : ?: The indolent non-Hodgkin lymphomas (i-NHLs) are characterised by 'indolent' clinical behaviour with slow growth and prolonged natural history. The watchful waiting (WW) strategy is a frequently employed treatment option in these patients. This implies a strict monitoring by imaging examinations, including 18F fluorodeoxyglucose-positron emission tomography/computed tomography (18F-FDG PET/CT) and CT. A major concern is radiation exposure due to regularly monitoring by conventional imaging procedures. Several studies have demonstrated the reliability of whole-body magnetic resonance imaging (WB-MRI) for lymphoma staging. WB-MRI could be useful for active surveillance in i-NHLs providing the suspect of disease progression that can be then confirmed by additional diagnostic procedures, including 18F-FDG-PET/CT. The directive 2013/59 by the European Union claims that if a radiation-free imaging technique allows obtaining the same diagnostic results, it should be invariably used. In this setting, WB MRI may be considered a reasonable option in i-NHLs under WW, replacing imaging modalities that cause exposure to ionising radiations. This will help to reduce the cancer risk in i-NHL patients for whom chemo-/radiotherapy remain the usual treatment options following the usually long WW phase. The scientific community should raise the awareness of the risk of ionising radiations in i-NHLs and the emphasise the need for establishing the proper place of WB-MRI in lymphoma imaging. KEY POINTS: * Watchful waiting is a reasonable option in patients with indolent non-Hodgkin lymphomas. * Imaging is crucial to monitor patients with indolent non-Hodgkin lymphomas. * CT and 18 F-FDG-PET/CT are commonly used, implying a substantial radiation exposure. * WB-MRI is highly reliable in lymphoma staging. * WB-MRI may be considered to monitor indolent non-Hodgkin lymphomas under watchful waiting. PMID- 29018931 TI - Analytical evaluation of sensor measurements. PMID- 29018928 TI - Tactile localization biases are modulated by gaze direction. AB - Identifying the spatial location of touch on the skin surface is a fundamental function of our somatosensory system. Despite the fact that stimulation of even single mechanoreceptive afferent fibres is sufficient to produce clearly localised percepts, tactile localisation can be modulated also by higher level processes such as body posture. This suggests that tactile events are coded using multiple representations using different coordinate systems. Recent reports provide evidence for systematic biases on tactile localisation task, which are thought to result from a supramodal representation of the skin surface. While the influence of non-informative vision of the body and gaze direction on tactile discrimination tasks has been extensively studied, their effects on tactile localisation tasks remain largely unexplored. To address this question, participants performed a tactile localization task on their left hand under different visual conditions by means of a mirror box; in the mirror condition, a single stimulus was delivered on participants' hand, while the reflexion of the right hand was seen through the mirror; in the object condition, participants looked at a box through the mirror, and in the right hand condition, participants looked directly at their right hand. Participants reported the location of the tactile stimuli using a silhouette of a hand. Results showed a shift in the localization of the touches towards the tip of the fingers (distal bias) and the thumb (radial biases) across conditions. Critically, distal biases were reduced when participants looked towards the mirror compared to when they looked at their right hand suggesting that gaze direction reduces the typical proximo-distal biases in tactile localization. Moreover, vision of the hand modulates the internal configuration of points' locations, by elongating it, in the radio-ulnar axis. PMID- 29018930 TI - A highly selective electrochemical sensor based on molecularly imprinted polypyrrole-modified gold electrode for the determination of glyphosate in cucumber and tap water. AB - An electrochemical sensor based on molecularly imprinted polypyrrole (MIPPy) was developed for selective and sensitive detection of the herbicide glyphosate (Gly) in cucumber and tap water samples. The sensor was prepared via synthesis of molecularly imprinted polymers on a gold electrode in the presence of Gly as the template molecule and pyrrole as the functional monomer by cyclic voltammetry (CV). The sensor preparation conditions including the ratio of template to functional monomers, number of CV cycles in the electropolymerization process, the method of template removal, incubation time, and pH were optimized. Under the optimal experimental conditions, the DPV peak currents of hexacyanoferrate/hexacyanoferrite changed linearly with Gly concentration in the range from 5 to 800 ng mL-1, with a detection limit of 0.27 ng mL-1 (S/N = 3). The sensor was used to detect the concentration of Gly in cucumber and tap water samples, with recoveries ranging from 72.70 to 98.96%. The proposed sensor showed excellent selectivity, good stability and reversibility, and could detect the Gly in real samples rapidly and sensitively. Graphical abstract Schematic illustration of the experimental procedure to detect Gly using the MIPPy electrode. PMID- 29018932 TI - Analysis of Growth, Nutritional Status and Hospital Visitation Scores Associated with Reflux After Nissen Fundoplication in Neurologically Impaired Children with Gastroesophageal Reflux. AB - BACKGROUND: Neurologically impaired children (NIC) often experience swallowing difficulties and gastroesophageal reflux disease (GERD). Although these conditions could place children in a state of poor nutritional status and prevent them from thriving, there is insufficient research evaluating growth and nutritional status following fundoplication in these patients. METHOD: This is a retrospective study of patients who were neurologically impaired and underwent Nissen fundoplication between April 2001 and March 2015. Seventy-six patients were enrolled, and the follow-up period was 12 months or longer. Growth was measured by the change in body weight and height. Nutritional status was measured by the change in body mass index, serum albumin and protein level. RESULTS: Median age at operation was 1.85 years old, and median body weight was 10 kg. The respective Z scores for weight and height showed significant improvements after 1 year since the operation compared to 1 year within the operation (-2.42 +/- 2.19 vs. -1.31 +/- 1.96, P < 0.001) (-1.6 +/- 2.16 vs. -1.05 +/- 1.69, P = 0.002). The respective Z scores for body mass index, albumin and protein also showed improvements after 1 year since the operation compared to 1 year within the operation (-2.07 +/- 2.99 vs. -0.89 +/- 2.1, P < 0.001) (3.55 +/- 0.48 vs. 3.86 +/- 0.45, P < 0.001) (6.22 +/- 0.76 vs. 6.65 +/- 0.51, P < 0.001). Hospital visitation scores associated with reflux were significantly lower after the operation (4.1 +/- 3.43 vs. 1.18 +/- 1.67, P < 0.001). CONCLUSIONS: In summary, after Nissen fundoplication in NIC with GER, growth and nutritional status improved significantly. Also, hospital visitation scores associated with reflux decreased after the operation. PMID- 29018933 TI - From Osteoimmunology to Osteomicrobiology: How the Microbiota and the Immune System Regulate Bone. AB - Osteomicrobiology refers to the role of microbiota in bone health and the mechanisms by which the microbiota regulates post-natal skeletal development, bone aging, and pathologic bone loss. Here, we review recent reports linking gut microbiota to changes in bone phenotype. A pro-inflammatory cytokine milieu drives bone resorption in conditions such as sex steroid hormone deficiency. The response of the immune system to activation by the microbiome results in increased circulating osteoclastogenic cytokines in a T cell-dependent mechanism. Additionally, gut microbiota affect bone homeostasis through nutrient absorption, mediation of the IGF-1 pathway, and short chain fatty acid and metabolic products. Manipulation of microbiota through prebiotics or probiotics reduces inflammatory cytokine production, leading to changes in bone density. One mechanism of probiotic action is through upregulating tight junction proteins, increasing the strength of the gut epithelial layer, and leading to less antigen presentation and less activation of intestinal immune cells. Thus, prebiotics or probiotics may represent a future therapeutic avenue for ameliorating the risk of postmenopausal bone loss in humans. PMID- 29018934 TI - Quantitative susceptibility mapping of the motor cortex: a comparison of susceptibility among patients with amyotrophic lateral sclerosis, cerebrovascular disease, and healthy controls. AB - PURPOSE: The purpose of this study was to investigate the differences in motor cortex susceptibility among patients with amyotrophic lateral sclerosis (ALS), cerebrovascular disease (CVD), and healthy controls using quantitative susceptibility mapping (QSM). METHODS: We retrospectively reviewed 78 QSM images from 26 patients with ALS, 26 age- and sex-matched patients with CVD, and 26 healthy controls. A region of interest was drawn in the hand lobule of both the motor cortexes and subcortical white matter. The relative susceptibility (RS) of the motor cortex was obtained by subtracting the susceptibility of the subcortical white matter from that of the motor cortex. We compared the cortexmean, cortexmax, subcortical white mattermean, RSmean, and RSmax values among the three groups using analysis of variance and Tukey's post hoc test. Receiver operating characteristic (ROC) curve analysis was also performed. RESULTS: There were significant differences in the cortexmean, cortexmax, RSmean, and RSmax among the three groups, with higher values in patients with ALS (p = 0.01, p = 0.004, p < 0.001, and p < 0.001, respectively). Subcortical white mattermean was significantly lower in patients with ALS compared with patients with CVD and healthy controls (p = 0.04). ROC curve analysis showed that the area under the curve of RSmean was 0.70, the highest among the measured parameters. CONCLUSION: Quantitative measurements of susceptibility of the motor cortex with QSM demonstrate its potential as an imaging biomarker in ALS patients. PMID- 29018936 TI - [Chameleon spondylodiscitis : Challenge for geriatricians]. AB - The incidence of spondylodiscitis is increasing and attributable to an aging population with multimorbidities. Spondylodiscitis represents a life-threatening disease. Typical clinical manifestations often involve nonspecific symptoms with back pain; however, due to the frequent absence of fever the disease is often overlooked. Pathogen detection and spinal imaging with magnetic resonance imaging (MRI) are essential for the diagnosis. Identification of the causative pathogen is particularly important for initiating targeted antibiotic treatment. Debridement and stabilization are the mainstays of surgical management, even though foreign material must be implanted into the focus of inflammation. PMID- 29018935 TI - A curious new role for MRN in Schizosaccharomyces pombe non-homologous end joining. AB - Chromosomal breaks can be healed by several repair processes, including one called non-homologous end-joining (NHEJ) where the two broken ends are ligated together with a loss of 0-5 bp of DNA. The protein requirements for NHEJ of cut DNA ends in the budding yeast Saccharomyces cerevisiae include its version of the Mre11-Rad50-Nbs1 (MRN) complex. In contrast, the fission yeast Schizosaccharomyces pombe and mammalian cells do not require MRN for this process. Recent work in S. pombe used transposon excision to generate breaks that were capped by DNA hairpins, which must be opened to produce ligatable ends. Repair in S. pombe was through an NHEJ reaction that now requires MRN. Surprisingly, wild type cells and MRN mutants that lack nuclease activity showed the same levels of excision. These genetic results suggest that MRN recruits an unknown hairpin-opening nuclease for this unusual NHEJ reaction. PMID- 29018937 TI - Local effect of zoledronic acid on new bone formation in posterolateral spinal fusion with demineralized bone matrix in a murine model. AB - BACKGROUND: Posterolateral spinal fusion is a common orthopaedic surgery performed to treat degenerative and traumatic deformities of the spinal column. In posteriolateral spinal fusion, different osteoinductive demineralized bone matrix products have been previously investigated. We evaluated the effect of locally applied zoledronic acid in combination with commercially available demineralized bone matrix putty on new bone formation in posterolateral spinal fusion in a murine in vivo model. METHODS: A posterolateral sacral spine fusion in murine model was used to evaluate the new bone formation. We used the sacral spine fusion model to model the clinical situation in which a bone graft or demineralized bone matrix is applied after dorsal instrumentation of the spine. In our study, group 1 received decortications only (n = 10), group 2 received decortication, and absorbable collagen sponge carrier, group 3 received decortication and absorbable collagen sponge carrier with zoledronic acid in dose 10 ug, group 4 received demineralized bone matrix putty (DBM putty) plus decortication (n = 10), and group 5 received DBM putty, decortication and locally applied zoledronic acid in dose 10 ug. Imaging was performed using MicroCT for new bone formation assessment. Also, murine spines were harvested for histopathological analysis 10 weeks after surgery. RESULTS: The surgery performed through midline posterior approach was reproducible. In group with decortication alone there was no new bone formation. Application of demineralized bone matrix putty alone produced new bone formation which bridged the S1-S4 laminae. Local application of zoledronic acid to demineralized bone matrix putty resulted in significant increase of new bone formation as compared to demineralized bone matrix putty group alone. CONCLUSIONS: A single local application of zoledronic acid with DBM putty during posterolateral fusion in sacral murine spine model increased significantly new bone formation in situ in our model. Therefore, our results justify further investigations to potentially use local application of zoledronic acid in future clinical studies. PMID- 29018939 TI - [Presacral lesion at the rima ani]. AB - A 26-year-old woman presented with a painful bulge at the rima ani. The tumor was located in the presacral region. Histological examination revealed a well circumscribed biphenotypical tumor with papillary configured myxoid areas and strongly sclerosing regions. This case of a myxopapillary ependymoma is a rare example of a myxoid neoplastic lesion in the sacral region. PMID- 29018940 TI - Laparoscopy or laparotomy for adhesive bowel obstruction in children: a systematic review and meta-analysis. AB - PURPOSE: Adhesive small bowel obstruction (ASBO) is one of the most important cause of postoperative morbidity in children who underwent abdominal surgery. Laparoscopic management for ASBO in pediatric patients has been reported. However, its safety and efficacy has not been evaluated in details. The aim of this study is to compare the outcomes of laparoscopy and laparotomy for the treatment of ASBO in children. METHODS: A systematic review and meta-analysis were performed following the Cochrane Handbook for systematic reviews of intervention and the preferred reporting item for systematic reviews and meta analysis (PRISMA) and a protocol registered in PROSPERO (CRD42017067914). The primary outcome was the number of intraoperative and postoperative complications. The secondary outcome was length of hospital stay. The risk of bias in non randomized studies of interventions (ROBINS-I) tool was used to assess the risk of bias. Quality of evidence was summarized using the grades of recommendation, assessment, development and evaluation (GRADE) approach. RESULTS: We identified three observational studies and no randomized controlled trials. The meta analysis was done only for the primary outcome. Complications were significantly fewer after laparoscopy compared to laparotomy (Odds ratio = 0.51; 95% CI 0.40 0.66; p < 0.01; I 2: 0%). The overall risk of bias was considered serious. CONCLUSIONS: Our results, based on observational studies, indicate that laparoscopy for ASBO was associated with less postoperative complications compared to conventional laparotomy. However, the quality of evidence is very low. A well-controlled study is needed to assess the efficacy of laparoscopy for pediatric patients with ASBO. PMID- 29018942 TI - Evaluation of an abbreviated screening MRI protocol for patients at risk for hepatocellular carcinoma. AB - PURPOSE: In this study, we compare an abbreviated screening MRI protocol (aMRI), utilizing only dynamic contrast-enhanced images, to a conventional liver MRI (cMRI) for the characterization of observations in at-risk patients. MATERIALS AND METHODS: 164 consecutive HCC screening MRIs were retrospectively analyzed. Two sets of de-identified image sets were created: one with all acquired sequences including T2- and diffusion-weighted sequences (cMRI), and one with only T1-weighted precontrast and dynamic post-contrast images utilizing an extracellular gadolinium contrast agent (aMRI). Three readers assigned a LI-RADS score based on the lesion with the highest LI-RADS category using the aMRI and cMRI datasets during separate reads. RESULTS: There was no change between the aMRI and cMRI LI-RADS categorization in 93%, 96%, and 96% of cases for readers 1, 2, and 3, respectively. In the majority of the discrepant cases, the score increased from LI-RADS 3 to LI-RADS 4 due to the presence of ancillary features on T2 and DWI. Kappa values for interobserver variability demonstrated fair-to moderate LI-RADS agreement among the 3 readers. CONCLUSION: There was strong agreement between the abbreviated T1-only MRI protocol and a full liver MRI, with only 5% of cases changing LI-RADS categorization due to the inclusion of T2 and DWI. The estimated time to run this abbreviated MRI is approximately 7-10 min, possibly allowing for a more cost-effective screening MRI than our cMRIs. PMID- 29018941 TI - Pulmonary arteriovenous malformations in hereditary haemorrhagic telangiectasia: Correlations between computed tomography findings and cerebral complications. AB - OBJECTIVES: Computed tomography (CT) is the modality of choice to characterise pulmonary arteriovenous malformations (PAVMs) in patients with hereditary haemorrhagic telangiectasia (HHT). Our objective was to determine if CT findings were associated with frequency of brain abscess and ischaemic stroke. METHODS: This retrospective study included patients with HHT-related PAVMs. CT results, i.e. PAVM presentation (unique, multiple, disseminated or diffuse), the number of PAVMs and the largest feeding artery size, were correlated to prevalence of ischaemic stroke and brain abscess. All CTs were reviewed in consensus by two radiologists. RESULTS: Of 170 patients, 73 patients had unique (42.9 %), 49 multiple (28.8 %), 36 disseminated (21.2 %) and 12 diffuse (7.1 %) PAVMs. Fifteen patients presented with brain abscess; 26 patients presented with ischaemic stroke. The number of PAVMs was significantly correlated with brain abscess (11.5 vs. 6.2, respectively; p=0.025). The mean diameter of the largest feeding artery was significantly correlated with ischaemic stroke frequency (4.9 vs. 3.2 mm, respectively; p=0.0098). CONCLUSIONS: The number of PAVMs correlated significantly with risk of brain abscess, and a larger feeding artery significantly with more ischaemic strokes. These findings can lead to a better recognition and management of the PAVMs at risk of cerebral complications. KEY POINTS: * Chest CT helps clinicians to facilitate appropriate PAVM management strategies. * Pulmonary arteriovenous malformation CT findings are correlated with risk of cerebral complications. * Risk of brain abscess is significantly correlated with number of PAVMs. * Risk of ischaemic stroke is significantly correlated with large feeding artery PAVMs. * Prevalence of observed of brain abscess and ischaemic stroke is 26 %. PMID- 29018943 TI - Microbial depassivation of Fe(0) for contaminant removal under semi-aerobic conditions. AB - Increasing evidence has shown that the reaction of zero-valent iron [Fe(0)] by oxygen can produce strong oxidants and rapidly oxidize the tractable contaminants. However, Fe(0) is vulnerable to passivation in the presence of oxygen, which significantly decreases its surface reactivity towards the removal of refractory contaminants. Microorganisms capable of reducing ferric iron in the presence of oxygen are expected to overcome the limitation of Fe(0) passivation. However, no studies to date have shown that microorganisms are able to depassivate Fe(0) for the removal of recalcitrant compounds in the presence of oxygen. In this study, we demonstrated that the carotenoid-producing Sphingobium hydrophobicum C1 was able to significantly enhance the removal of deca-brominated diphenyl ether by depassivating Fe(0) and subsequently removing the newly formed metabolites under semi-aerobic conditions (> 4 mg/L oxygen). S. hydrophobicum C1 effectively depassivated Fe(0) and regenerated its reactivity by reducing ferric iron under semi-aerobic conditions. Some unique characteristics of S. hydrophobicum C1, including the presence of membrane-integrated carotenoids and certain cell proteins, were essential for the ferric iron reduction of S. hydrophobicum C1 in the presence of oxygen. Our results may provide new insights into the bioremediation of persistent pollutants and will contribute to future studies to enhance our understanding of microbial iron reduction. PMID- 29018938 TI - Heart failure with preserved ejection fraction: current management and future strategies : Expert opinion on the behalf of the Nucleus of the "Heart Failure Working Group" of the German Society of Cardiology (DKG). AB - About 50% of all patients suffering from heart failure (HF) exhibit a reduced ejection fraction (EF <= 40%), termed HFrEF. The others may be classified into HF with midrange EF (HFmrEF 40-50%) or preserved ejection fraction (HFpEF, EF >= 50%). Presentation and pathophysiology of HFpEF is heterogeneous and its management remains a challenge since evidence of therapeutic benefits on outcome is scarce. Up to now, there are no therapies improving survival in patients with HFpEF. Thus, the treatment targets symptom relief, quality of life and reduction of cardiac decompensations by controlling fluid retention and managing risk factors and comorbidities. As such, renin-angiotensin-aldosterone inhibitors, diuretics, calcium channel blockers (CBB) and beta-blockers, diet and exercise recommendations are still important in HFpEF, although these interventions are not proven to reduce mortality in large randomized controlled trials. Recently, numerous new treatment targets have been identified, which are further investigated in studies using, e.g. soluble guanylate cyclase stimulators, inorganic nitrates, the angiotensin receptor neprilysin inhibitor LCZ 696, and SGLT2 inhibitors. In addition, several devices such as the CardioMEMS, interatrial septal devices (IASD), cardiac contractility modulation (CCM), renal denervation, and baroreflex activation therapy (BAT) were investigated in different forms of HFpEF populations and some of them have the potency to offer new hopes for patients suffering from HFpEF. On the basic research field side, lot of new disease-modifying strategies are under development including anti inflammatory drugs, mitochondrial-targeted antioxidants, new anti-fibrotic and microRNA-guided interventions are under investigation and showed already promising results. This review addresses available data of current best clinical practice and management approaches based on expert experiences and summarizes novel approaches towards HFpEF. PMID- 29018944 TI - [Nonautonomous effects of oncogenic YAP in hepatocarcinogenesis]. AB - BACKGROUND: The transcriptional coactivator yes-associated protein (YAP) is a strong oncogene in liver cancer development. OBJECTIVES: To investigate if and how YAP-induced paracrine-acting factors are regulated in hepatocytes and liver cancer cells. MATERIAL AND METHODS: Transcriptome analysis and proteomics of murine wildtype and YAP-transgenic hepatocytes were performed to identify paracrine-acting proteins. Molecular and biochemical techniques were used to examine the mechanisms of YAP-dependent gene regulation. Gene expression data from HCC (hepatocellular carcinoma) patients was evaluated. RESULTS: Several YAP dependent, secreted factors (e. g. CXCL10, GDF15, PDGFB) were identified. YAP regulates these factors through transcription factors of the TEAD (TEA domain) protein family. Moreover, the dysregulation of the YAP-target genes is often associated with poor HCC patient prognosis. CONCLUSIONS: YAP induces the expression of paracrine-acting factors that may affect the tumor microenvironment and therefore support carcinogenesis. This multicellular network could allow the development of novel and specific perturbation approaches. PMID- 29018945 TI - [Nuclear Her2 expression in hepatocytes in liver disease]. AB - BACKGROUND: Her2 is a well-known member of the epidermal growth factor receptor (EGFR) superfamily, a group of transmembrane receptors that mediate effects of proliferation and survival and thus play an important role in tumorigenesis. EGFRs can translocate to the nucleus and may mediate DNA repair and cell cycle arrest. OBJECTIVES: The aim of this study was to characterize hepatocellular Her2 expression in different liver diseases. MATERIALS AND METHODS: Her2 expression was analyzed by immunohistochemistry in 674 liver biopsies. RESULTS: Hepatocytes often revealed a nuclear and cytoplasmic Her2 expression in different liver diseases with the strongest association to alcoholic steatohepatitis. The histologic parameters of hepatocellular ballooning and the presence of Mallory Denk bodies strongly correlated with Her2 positivity. Interestingly, in hepatocellular carcinomas (HCC) nuclear Her2 expression was frequently observed. Furthermore, Her2 positive hepatocytes showed a loss of estrogen receptor expression and increased expression of p21, a cell cycle regulator, and pSTAT3, a downstream effector of nuclear Her2. CONCLUSIONS: Nuclear Her2 expression in hepatocytes with further metabolic and cell cycle alterations may imply a so far unknown mechanism of a stress response. So far, the effects on disease course and a possible role of nuclear Her2 in progression to HCC are unclear and the subject of future research. PMID- 29018946 TI - Bidirectional terminators: an underestimated aspect of gene regulation. AB - Recent experimental and computational work revealed that transcriptional terminators in Saccharomyces cerevisiae can terminate transcription coming from both directions. This mechanism helps budding yeast cope with the pervasive nature of transcription by limiting aberrant transcription from invading neighboring genes. PMID- 29018947 TI - Endoscopic management of petrous apex cholesteatoma. AB - We describe a technique for approaching petrous apex cholesteatoma using combined lateral microscopic/endoscopic approaches, and discuss the utility of endoscopy in managing matrix inside the petrous apex. In our two cases, total view inside the petrous apex was achieved under endoscopy without mobilizing the internal carotid artery, and the matrix was successfully removed. Neither patient has presented with postoperative recurrence thanks to the wide-angle endoscopic view inside the petrous apex. Since the number of patients was small, comparisons with microscopic treatments are not yet valid, but endoscopes could offer a helpful tool for operating inside the petrous apex. PMID- 29018948 TI - Knockdown of E-cadherin expression of endometrial epithelial cells may activate Wnt/beta-catenin pathway in vitro. AB - PURPOSE: E-cadherin, a transmembrane glycoprotein mediating Ca2+-independent homotypic cell-cell adhesion in epithelial cell, plays an essential role in metastasis. It has been postulated that E-cadherin downregulation is a crucial mechanism in the pathogenesis of endometriosis. To evaluate the effect on the cell behavior after knockdown of E-cadherin gene (CDH1) in cultured human endometrial epithelial cells (EECs) isolated from normal endometrium. METHODS: EECs were isolated from the endometrial tissues of fertile woman who underwent total hysterectomy due to cervical intraepithelial neoplasia III. CDH1 expression was knocked down by small hairpin RNA. The EECs transfected with empty vector served as control. Transwell assay was used to test EECs migration or invasion. qRT-PCR and western blot were used to detect mRNA and protein levels. RESULTS: The results showed that knockdown of E-cadherin expression can increase cell migration and invasion, and up-regulate mRNA and protein levels of beta-catenin, cyclinD1, and c-myc. CONCLUSIONS: Down-regulation of E-cadherin expression may activate the Wnt/beta-catenin pathway in endometrial cells, which may together participate in the occurrence of endometriosis. PMID- 29018949 TI - The corticospinal responses of metronome-paced, but not self-paced strength training are similar to motor skill training. AB - PURPOSE: The corticospinal responses to skill training may be different to strength training, depending on how the strength training is performed. It was hypothesised that the corticospinal responses would not be different following skill training and metronome-paced strength training (MPST), but would differ when compared with self-paced strength training (SPST). METHODS: Corticospinal excitability, short-interval intra-cortical inhibition (SICI) and strength and tracking error were measured at baseline and 2 and 4 weeks. Participants (n = 44) were randomly allocated to visuomotor tracking, MPST, SPST or a control group. RESULTS: MPST increased strength by 7 and 18%, whilst SPST increased strength by 12 and 26% following 2 and 4 weeks of strength training. There were no changes in strength following skill training. Skill training reduced tracking error by 47 and 58% at 2 and 4 weeks. There were no changes in tracking error following SPST; however, tracking error reduced by 24% following 4 weeks of MPST. Corticospinal excitability increased by 40% following MPST and by 29% following skill training. There was no change in corticospinal excitability following 4 weeks of SPST. Importantly, the magnitude of change between skill training and MPST was not different. SICI decreased by 41 and 61% following 2 and 4 weeks of MPST, whilst SICI decreased by 41 and 33% following 2 and 4 weeks of skill training. Again, SPST had no effect on SICI at 2 and 4 weeks. There was no difference in the magnitude of SICI reduction between skill training and MPST. CONCLUSIONS: This study adds new knowledge regarding the corticospinal responses to skill and MPST, showing they are similar but different when compared with SPST. PMID- 29018950 TI - Are viviparous lizards more vulnerable to climate warming because they have evolved reduced body temperature and heat tolerance? AB - Lizards may experience population declines and extinctions on a similar scale to that experienced by amphibians, and climate warming is one hypothesis proposed to explain these declines and extinctions. Within lizards, viviparous species are hypothesized to be more vulnerable to climate warming, because they have evolved reduced body temperature and heat tolerance, but this idea remains untested. To test this hypothesis, we conducted three temperatures (20, 24, and 28 degrees C) * two species [Phrynocephalus przewalskii (oviparous) and P. putjatia (viviparous)] factorial design experiment that simulated warming on oviparous versus viviparous lizards. Our manipulation of ambient temperature affected activity and thermal preference in both species, birth date in P. putjatia, and egg mass in P. przewalskii; other examined traits (fecundity, reproductive output, and size, morphology, and sprint speed of offspring) were not affected. Neither in P. putjatia nor in P. przewalskii behavioral responses to rising temperatures differ between the sexes. The viviparous species thermoregulated more actively than did the oviparous species, but the two species did not differ in thermal preference. Warming reduced the activity time allotted for thermoregulation in both species, but the effect was more dramatic in the viviparous species. Our data support one of the central predictions that lead to the hypothesis that viviparous lizards are more vulnerable to climate warming; however, this is not because viviparous lizards have evolved reduced body temperature and heat tolerance, but, because warming constrains activity more dramatically in viviparous species. PMID- 29018951 TI - The role of the mating system and intraspecific brood parasitism in the costs of reproduction in a passerine bird. AB - Limited resources trigger trade-offs in resource allocation. Reproduction is one of the most demanding activities in terms of energy, and costs related to reproduction can be apparent either as reduced future reproduction or as survival. However, costs are not always detected, because individual heterogeneity in quality and resource acquisition may explain variation in costs among individuals. We conducted a comprehensive study in spotless starlings (Sturnus unicolor) nesting in Central Spain to determine whether costs of reproduction could be detectable in the short and/or long term and whether prenatal or postnatal investment were driving these costs. We took into account the life history of the species, where egg volume is highly repeatable, males are facultatively polygynous, and intraspecific brood parasitism occurs. Females with a high reproductive effort in a breeding event also had a high reproductive effort in the second event of the season. The mating system and maternal age were reliable predictors of breeding success within a breeding event: monogamous and primary females, as well as older mothers, raised more nestlings than secondary females and 1-year-old females, respectively. However, when high-investing females suffered intra-brood parasitism in 1 year, we found a negative correlation between current and future reproduction. These results suggest that, under some circumstances, females are able to skip the short-term costs of reproduction, but when extra effort is added, trade-offs arise. While most studies have focused on different aspects of individual quality on costs, the ecological context seems to represent an important component that should be taken into account. PMID- 29018952 TI - Automated breast volume scanner (ABVS) in assessing breast cancer size: A comparison with conventional ultrasound and magnetic resonance imaging. AB - OBJECTIVES: To compare automated breast volume scanner (ABVS), ultrasound (US) and MRI in measuring breast cancer size, and evaluate the agreement between ABVS and US in assessing lesion location and sonographic features. METHODS: We retrospectively included 98 women with 100 index cancers who had undergone US and ABVS followed by 1.5T MRI. Images were interpreted by a pool of readers reporting lesion size, location and breast imaging reporting and data system (BI-RADS) features. Bland-Altman analysis (with logarithmic data transformation), intraclass correlation coefficient (ICC) and Cohen's kappa statistic were used for statistical analysis. RESULTS: MRI showed the best absolute agreement with histology in measuring cancer size (ICC 0.93), with LOA comparable to those of ABVS (0.63-1.99 vs. 0.52-1.73, respectively). Though ABVS and US had highly concordant measurements (ICC 0.95), ABVS showed better agreement with histology (LOA 0.52-1.73 vs. 0.45-1.86, respectively), corresponding to a higher ICC (0.85 vs. 0.75, respectively). Except for posterior features (k=0.39), the agreement between US and ABVS in attributing site and BI-RADS features ranged from substantial to almost perfect (k=0.68-0.85). CONCLUSIONS: ABVS performs better than US and approaches MRI in predicting breast cancer size. ABVS performs comparably to US in sonographic assessment of lesions. KEY POINTS: * ABVS approaches MRI in predicting breast cancer size. * ABVS is equivalent to US in localising and characterising breast cancer. * ABVS is more accurate than US in assessing breast cancer size. * ABVS has the potential to replace US in breast cancer staging. PMID- 29018953 TI - Frequency and proliferative response of circulating invariant natural killer T cells in pediatric patients with malignant solid tumors. AB - BACKGROUND: Invariant natural killer T (iNKT) cells play an important role in tumor immunity, enhancing both innate and acquired immunity. We have previously shown the enhancement of antibody-dependent cellular cytotoxicity against neuroblastoma by activated iNKT cells. As a first step towards clinical application, we studied the frequency and proliferative response of circulating iNKT cells in children with and without cancer. METHODS: Blood samples were collected from 10 patients with pediatric malignant solid tumors and 11 patients with non-neoplastic diseases (control). The frequency of circulating iNKT cells was quantified by flow cytometry. Whole peripheral blood mononuclear cells were then stimulated with alpha-galactosylceramide (alpha-GalCer) for 7 days, and the expansion rate of the iNKT-cell fraction was assessed. RESULTS: The frequency of iNKT cells in the patients of the cancer and control group did not differ to a statistically significant extent. The iNKT-cell population increased after alpha GalCer stimulation in all cases. The iNKT cells of patients who had undergone intensive chemotherapy also had the potential to expand in vitro. CONCLUSIONS: Unlike adult cancer patients, the numbers of circulating iNKT cells were not decreased in pediatric cancer patients. alpha-GalCer stimulation induced a proliferative response in all of the patients. PMID- 29018955 TI - The effect of laminin-1 on enteric neural crest-derived cell migration in the Hirschsprung's disease mouse model. AB - BACKGROUND/AIM: Laminin-1 regulates neurite outgrowth in various neuronal cells. We have previously demonstrated that laminin-1 promotes enteric neural crest derived cell (ENCC) migration by using Sox10-VENUS transgenic mice, in which ENCCs are labeled with a green fluorescent protein, Venus. Mice lacking the endothelin-B receptor gene, Ednrb -/- mice, are widely used as a model for Hirschsprung's disease (HD). The aim of this study was to investigate the effects of laminin-1on ENCC migration in Sox10-VENUS+/Ednrb -/- mice, a newly created HD mice model. METHODS: Fetal guts were dissected on embryonic day 12.5 (E12.5). Specimens were incubated either with, or without laminin-1 for 24 h and images were taken under a stereoscopic microscope. The length from the stomach to the wavefront of ENCC migration (L-E) and the total length of the gut (L-G) were measured. Changes in the ratio of L-E to L-G (L-E/L-G) after 24 h were calculated. RESULTS: On E12.5, the wavefront of ENCC migration in the HD gut samples was located in the midgut, whereas the wavefront of ENCC in Sox10 VENUS+/Ednrb +/+ (WT) samples had reached the hindgut. After 24 h, L-E/L-G had increased by 1.49%, from 34.97 to 36.46%, in HD gut and had increased by 1.07%, from 48.08 to 49.15%, in HD with laminin-1, suggesting there was no positive effect of laminin-1 administration on ENCC migration in HD. CONCLUSIONS: Our results suggest that laminin-1 does not have a positive effect on ENCC migration in HD mice on E12.5, in contrast to the phenomenon seen in normal mice gut specimens, where laminin-1 promotes ENCC migration during the same period. This suggests that there is an impairment in the interaction between ENCC and extracellular environmental factors, which are required for normal development of the enteric nervous system, resulting in an aganglionic colon in HD. PMID- 29018954 TI - The importance of cutaneous feedback on neural activation during maximal voluntary contraction. AB - PURPOSE: The purpose of this study was to investigate the importance of cutaneous feedback on neural activation during maximal voluntary contraction (MVC) of the ankle plantar flexors. METHODS: The effects of cutaneous plantar anaesthesia were assessed in 15 subjects and compared to 15 controls, using a one-day pre/post repeated measures design. Cutaneous plantar anaesthesia was induced by lidocaine injection at the centre of forefoot, lateral midfoot, and heel. Each subject performed isometric MVCs of the ankle plantar flexors. During each isometric ramp contraction, the following variables were assessed: maximal isometric torque; surface electromyography (EMG) activity of the medial gastrocnemius (MG) and tibialis anterior (TA) muscles; and co-contraction index (CCI) between the MG and TA. RESULTS: For ankle torque, two-way ANOVA showed no significant interaction between the pre/post-measurements * group (p = 0.166). However, MG activity presented significant interactions between the pre/post-measurements * group (p = 0.014). Post hoc comparisons indicated a decrease of MG activity in the experimental group, from 85.9 +/- 11.9 to 62.7 +/- 30.8% (p = 0.016). Additionally, the post-anaesthesia MG activity of the experimental group differed statistically with pre- and post-MG activity of the control group (p = 0.027 and p = 0.008, respectively). For TA activity and CCI, two-way ANOVA detected no significant interactions between the pre/post-measurements * group (p = 0.605 and p = 0.332, respectively). CONCLUSION: Our results indicate that during MVC, cutaneous feedback modulates neural activity to MG muscle, without changing the extent of MG-TA co-contraction. PMID- 29018957 TI - Effect of heat stress on production and in-vitro antioxidant activity of polysaccharides in Ganoderma lucidum. AB - Ganoderma lucidum is a traditional Chinese medicine, and its polysaccharides possess diverse and significant pharmacological activities. This study aimed to investigate the polysaccharide production, molecular characteristics and in-vitro antioxidant activity of G. lucidum fruiting body after the mushroom was harvested and treated with heat stress (HS). HS enhanced the production of polysaccharides after harvest and treatment of 42 degrees C HS for 2 h, and that resulted in the highest polysaccharide yield of 10.50%, which was 45.63% higher than that of the control, while 37, 45 degrees C HS had no significant effect on the production. In terms of molecular characteristics, 42 degrees C HS significantly changed monosaccharide ratio of polysaccharides, but no apparent molecular weight and functional group changes were found in polysaccharides after HS treatment. The results of in-vitro antioxidant activity assay revealed that 42 degrees C HS significantly improved the antioxidant activities of polysaccharides at the concentration of 2 mg/mL. In conclusion, this study provides a promising strategy to improve the production of G. lucidum fruiting body polysaccharides. PMID- 29018956 TI - Remote kinematic training for patients with chronic neck pain: a randomised controlled trial. AB - PURPOSE: To evaluate short- and intermediate-term effects of kinematic training (KT) using virtual reality (VR) or laser in patients with chronic neck pain. METHODS: A randomised controlled trial with three arms (laser, VR, control) to post-intervention (N = 90), and two arms (laser or VR) continuing to 3 months follow-up. Home training intervention was provided during 4 weeks to VR and laser groups while control group waited. OUTCOME MEASURES: Primary outcome measures included neck disability index (NDI), global perceived effect (GPE), and cervical motion velocity (mean and peak). Secondary outcome measures included pain intensity (VAS), health status (EQ5D), kinesiophobia (TSK), range, smoothness, and accuracy of neck motion as measured by the neck VR system. Measures were taken at baseline, immediately post-training, and 3 months later. RESULTS: Ninety patients with neck pain were randomised to the trial, of which 76 completed 1 month follow-up, and 56 the 3 months follow-up. Significant improvements were demonstrated in NDI and velocity with good effect sizes in intervention groups compared to control. No within-group changes were presented in the control group, compared to global improvements in intervention groups. Velocity significantly improved at both time points in both groups. NDI, VAS, EQ5D, TSK and accuracy significantly improved at both time points in VR and in laser at 3 months evaluation in all but TSK. GPE scores showed 74-84% of participants perceived improvement and/or were satisfied. Significant advantages to the VR group compared to laser were found in velocity, pain intensity, health status and accuracy at both time points. CONCLUSION: The results support home kinematic training using VR or laser for improving disability, neck pain and kinematics in the short and intermediate term with an advantage to the VR group. The results provide directions for future research, use and development. TRIAL REGISTRATION: ACTRN12615000231549. PMID- 29018958 TI - Comparison of virtual monoenergetic and polyenergetic images reconstructed from dual-layer detector CT angiography of the head and neck. AB - OBJECTIVES: To compare the image quality of virtual monoenergetic images and polyenergetic images reconstructed from dual-layer detector CT angiography (DLCTA). METHODS: Thirty patients who underwent DLCTA of the head and neck were retrospectively identified and polyenergetic as well as virtual monoenergetic images (40 to 120 keV) were reconstructed. Signals (+/- SD) of the cervical and cerebral vessels as well as lateral pterygoid muscle and the air surrounding the head were measured to calculate the CNR and SNR. In addition, subjective image quality was assessed using a 5-point Likert scale. Student's t-test and Wilcoxon test were used to determine statistical significance. RESULTS: Compared to polyenergetic images, although noise increased with lower keV, CNR (p < 0.02) and SNR (p > 0.05) of the cervical, petrous and intracranial vessels were improved in virtual monoenergetic images at 40 keV and virtual monoenergetic images at 45 keV were also rated superior regarding vascular contrast, assessment of arteries close to the skull base and small arterial branches (p < 0.0001 each). CONCLUSIONS: Compared to polyenergetic images, virtual monoenergetic images reconstructed from DLCTA at low keV ranging from 40 to 45 keV improve the objective and subjective image quality of extra- and intracranial vessels and facilitate assessment of vessels close to the skull base and of small arterial branches. KEY POINTS: * Virtual monoenergetic images greatly improve attenuation, while noise only slightly increases. * Virtual monoenergetic images show superior contrast-to-noise ratios compared to polyenergetic images. * Virtual monoenergetic images significantly improve image quality at low keV. PMID- 29018959 TI - Invariant natural killer T infiltration in neuroblastoma with favorable outcome. AB - BACKGROUND: Tumor immunity has been suggested to play a key role in clinical and biological behavior of neuroblastomas. Given that CD1-restricted invariant natural killer T (iNKT) cells enhance both innate and acquired tumor immunity, we investigated the expression of the iNKT-cell-specific T-cell receptor Valpha24 Jalpha18 in neuroblastoma tissues and its correlation with clinical and biological characteristics. METHODS: Using real- time quantitative PCR, we quantified the expression of Valpha24-Jalpha18 in untreated tumor samples from 107 neuroblastoma cases followed in our institution and analyzed the correlation between the presence of infiltrated iNKT cells and clinical characteristics or patients' outcome. RESULTS: Valpha24-Jalpha18 receptor was detected in 62 untreated cases (57.9%). The expression was significantly higher in stages 1, 2, 3, or 4S (P = 0.0099), in tumors with low or intermediate risk (P = 0.0050), with high TrkA expression (P = 0.0229), with favorable histology (P = 0.0026), with aneuploidy (P = 0.0348), and in younger patients (P = 0.0036). The overall survival rate was significantly higher in patients with iNKT-cell infiltration (log-rank; P = 0.0089). CONCLUSIONS: Since tumor-infiltrating iNKT cells were predominantly observed in neuroblastomas undergoing spontaneous differentiation and/or regression, we suggest that iNKT cells might play a key role in these processes. PMID- 29018961 TI - Accuracy of a patient-specific template for pedicle screw placement compared with a conventional method: a meta-analysis. AB - INTRODUCTION: Accurate placement of pedicle screws in spine surgery is a challenge for surgeons. Patient-specific template techniques have the potential for improving the accuracy of screw placement. The target of this analysis was to investigate differences in terms of accuracy of pedicle screw insertion between patient-specific template assistance and the conventional free-hand method for reconstruction of spinal stability. MATERIALS: The Cochrane Library, Ovid, Web of Science, PubMed, EMBASE and CNKI database were searched until February 2017 for a systematic review, and several comparative studies were screened for comparisons of accuracies of pedicle screw insertion with patient-specific assistance and conventional methods. Primary outcomes extracted from papers that met the selection criterion were expressed as odds ratios for dichotomous outcomes with a 95% confidence interval. A chi 2 test and I 2 statistics were used to evaluate heterogeneity. RESULTS: A total of ten RCTs and two prospective cohort studies were finally chosen for the analysis of accuracy rates. Study quality was assessed using the Cochrane Collaboration's Tool and Newcastle-Ottawa Quality Assessment Scale. There were obvious differences between them, and the accuracy rate of screw implantation among a patient-specific template assistance set was statistically significantly higher than the conventional free-hand set (OR 95% CI 3.78-6.41, P < 0.01); in vitro: OR 95% CI 3.93-7.42, P < 0.01; in vivo: OR 95% CI 2.49-6.44, P < 0.01. CONCLUSIONS: The template-assisted technique is superior to the conventional method for the reduction of pedicle violation. The template assisted technique is a promising technique that should be considered as another available navigation tool for surgeons to improve the accuracy of pedicle screw placement. As an available technique for emerging applications in spine surgeries, this technique will face challenges but ultimately prove successfully. PMID- 29018960 TI - Influence of stress factors on intestinal epithelial injury and regeneration. AB - PURPOSE: Lgr5+ intestinal epithelial stem cells (ISCs) crucial for intestinal epithelial regeneration are impaired during necrotizing enterocolitis. This study aims to investigate the influence of different stressors on intestinal epithelial injury and regeneration in vitro. METHODS: Intestinal epithelial cells (IEC-18) were exposed to stressors such as lipopolysaccharide, hydrogen peroxide, and serum. Cell viability was assessed using MTT assay at 18 and 24 h. IL-6 and Lgr5 gene expressions were measured using qPCR. RESULTS: IEC-18 cell viability decreased 18 h following administration of lipopolysaccharide, hydrogen peroxide, and low serum concentration. However, after 24 h, the decrease in cell viability was observed only in higher, but not in lower concentrations of lipopolysaccharide and hydrogen peroxide. IL-6 expression increased in all groups compared to control. Lgr5 expression was up-regulated in cells exposed to a single stressor, but down-regulated when multiple stressors were administered. CONCLUSION: Lipopolysaccharide, hydrogen peroxide, or low serum induced IEC-18 injury. The upregulation of Lgr5 expression after exposure to a single stressor suggests that minor injury to IEC-18 induces Lgr5+ ISCs to stimulate repair. Conversely, when IEC-18 cells were exposed to multiple stressors, Lgr5 expression was reduced. We speculate that this finding is similar to what happens in NEC when multiple stressors cause impairment of intestinal epithelium regeneration. PMID- 29018962 TI - The fetal lung-to-liver signal intensity ratio on magnetic resonance imaging as a predictor of outcomes from isolated congenital diaphragmatic hernia. AB - PURPOSE: We investigated the developmental changes in the unaffected contralateral lungs of patients with isolated left-sided congenital diaphragmatic hernia (CDH) using signal intensity ratios on prenatal magnetic resonance imaging (MRI) and determined whether these changes correlated with clinical outcomes. METHODS: We performed 47 fetal MRI screens on 30 patients with isolated left sided CDH. A cohort of 88 fetuses was selected as the control. We calculated the lung-to-liver signal intensity ratio (LLSIR) using region of interest analysis and compared LLSIR between the groups and between those in the CDH group with good and poor prognoses. RESULTS: In the control group, LLSIR increased as pregnancy progressed [regression line = 2.232 + 0.135 * (GW-23), r = 0.669]. In the CDH group, especially in the poor prognosis group, LLSIR did not significantly increase as pregnancy progressed [regression line for good prognosis = 1.827 + 0.092 * (gestational week-23), r = 0.733; regression line for poor prognosis = 1.731 + 0.025 * (gestational week-23), r = 0.634]. CONCLUSION: Fetal LLSIR on T2-weighted MRI is an accurate marker of fetal lung maturity that correlates with postnatal survival and can potentially be used as a prognostic parameter in CDH management. PMID- 29018963 TI - Molecular analysis of the low-temperature Escherichia coli phage vB_EcoS_NBD2. AB - A novel low-temperature Escherichia coli phage vB_EcoS_NBD2 was isolated in Lithuania from agricultural soil. With an optimum temperature for plating around 20 degrees C, vB_EcoS_NBD2 efficiently produced plaques on Escherichia coli NovaBlue (DE3) at a temperature range of 10-30 degrees C, yet failed to plate at temperatures above 35 degrees C. Phage vB_EcoS_NBD2 virions have a siphoviral morphology with an isometric head (65 nm in diameter), and a non-contractile flexible tail (170 nm). The 51,802-bp genome of vB_EcoS_NBD2 has a G + C content of 49.8%, and contains 87 probable protein-encoding genes as well as 1 gene for tRNASer. Comparative sequence analysis revealed that 22 vB_EcoS_NBD2 ORFs encode unique proteins that have no reliable identity to database entries. Based on homology to biologically defined proteins and/or proteomics analysis, 36 vB_EcoS_NBD2 ORFs were given a putative functional annotation, including 20 genes coding for morphogenesis-related proteins and 13 associated with DNA metabolism. Phylogenetic analysis revealed that vB_EcoS_NBD2 belongs to the subfamily Tunavirinae, but cannot be assigned to any genus currently recognized by ICTV. PMID- 29018964 TI - A method to quantify the "cone of economy". AB - STUDY DESIGN: A non-randomized, prospective, concurrent control cohort study. OBJECTIVE: The purpose of this study is to develop and evaluate a method to quantify the dimensions of the cone of economy (COE) and the energy expenditure associated with maintaining a balanced posture within the COE, scoliosis patients and compare them to matched non-scoliotic controls in a group of adult degenerative. Balance is defined as the ability of the human body to maintain its center of mass (COM) within the base of support with minimal postural sway. The cone of economy refers to the stable region of upright standing posture. The underlying assumption is that deviating outside one's individual cone challenges the balance mechanisms. Adult degenerative scoliosis (ADS) patients exhibit a variety of postural changes within their COE, involving the spine, pelvis and lower extremities, in their effort to compensate for the altered posture. METHODS: Ten ADS patients and ten non-scoliotic volunteers performed a series of functional balance tests. The dimensions of the COE and the energy expenditure related to maintaining balance within the COE were measured using a human motion video capture system and dynamic surface electromyography. RESULTS: ADS patients presented more COM sway in the sagittal (ADS: 1.59 cm vs. H: 0.61 cm; p = 0.049) and coronal (ADS: 2.84 cm vs. H: 1.72 cm; p = 0.046) directions in comparison to the non-scoliotic control. ADS patients presented with more COM (ADS: 33.30 cm vs. H: 19.13 cm; p = 0.039) and head (ADS: 31.06 cm vs. H: 19.13 cm; p = 0.013) displacements in comparison to the non-scoliotic controls. Scoliosis patients expended more muscle activity to maintain static standing, as manifest by increased muscle activity in their erector spinae (ADS: 37.16 mV vs. H: 20.31 mV; p = 0.050), and gluteus maximus (ADS: 33.12 mV vs. H: 12.09 mV; p = 0.001) muscles. CONCLUSIONS: We were able to develop and evaluate a method that quantifies the COE boundaries, COM displacement, and amount of sway within the COE along with the energy expenditure for a specific patient. This method of COE measurement will enable spine care practitioners to objectively evaluate their patients in an effort to determine the most appropriate treatment options, and in objectively documenting the effectiveness of their intervention. PMID- 29018965 TI - The role of maintenance therapy in eosinophilic esophagitis: who, why, and how? AB - In patients with eosinophilic esophagitis (EoE) who do not respond to proton pump inhibitors, initial anti-inflammatory/anti-eosinophilic treatment is with either topical corticosteroids or dietary elimination. A large body of literature supports the efficacy of these approaches, with histologic response rates in the 50-90% range for steroids and 70% range for the six-food elimination diet. However, these studies are almost all short-term and data evaluating long-term safety and efficacy of either treatment are limited. Nevertheless, because EoE is chronic, symptomatic, endoscopic, and histologic disease activity recurs when successful treatments are stopped. An emerging body of data also suggest that left untreated, persistent eosinophilic esophageal inflammation may progress to fibrostenosis over time. Therefore, maintenance therapy in EoE is intuitively attractive. This paper reviews the rationale for maintenance treatment in EoE, the available long-term pharmacologic and dietary response data for EoE, and discusses who may benefit the most from ongoing treatment. While all patients with EoE can be offered maintenance treatment, this option should be strongly recommended in patients with severe disease phenotypes or complications, including malnutrition or failure to thrive, esophageal fibrostenosis, strictures requiring dilation, recurrent food bolus impaction, history of perforation, and symptoms that recur quickly after treatment discontinuation. In all EoE patients, regular follow-up is also advised. PMID- 29018966 TI - Safety and cost benefit of an ambulatory program for patients with low-risk neutropenic fever at an Australian centre. AB - BACKGROUND: Neutropenic fever (NF) is a common complication of cancer chemotherapy. Patients at low risk of medical complications from NF can be identified using a validated risk assessment and managed in an outpatient setting. This is a new model of care for Australia. This study described the implementation of a sustainable ambulatory program for NF at a tertiary cancer centre over a 12-month period. METHODS: Peter MacCallum Cancer Centre introduced an ambulatory care program in 2014, which identified low-risk NF patients, promoted early de-escalation to oral antibiotics, and early discharge to a nurse led ambulatory program. Patients prospectively enrolled in the ambulatory program were compared with a historical-matched cohort of patients from 2011 for analysis. Patient demographics, clinical variables (cancer type, recent chemotherapy, treatment intent, site of presentation) and outcomes were collected and compared. Total cost of inpatient admissions was determined from diagnosis related group (DRG) codes and applied to both the prospective and historical cohorts to allow comparisons. RESULTS: Twenty-five patients were managed in the first year of this program with a reduction in hospital median length of stay from 4.0 to 1.1 days and admission cost from Australian dollars ($AUD) 8580 to $AUD2360 compared to the historical cohort. Offsetting salary costs, the ambulatory program had a net cost benefit of $AUD 71895. Readmission for fever was infrequent (8.0%), and no deaths were reported. CONCLUSION: Of relevance to hospitals providing cancer care, feasibility, safety, and cost benefits of an ambulatory program for low-risk NF patients have been demonstrated. PMID- 29018967 TI - Mitigating arsenic contamination in rice plants with an aquatic fern, Marsilea minuta. AB - Dangers of arsenic contamination are well known in human civilization. The threat increases when arsenic is accumulated in food and livestock through irrigated crops or animal food. Hence, it is important to mitigate the effects of arsenic as much as possible. This paper discusses a process for reducing the level of arsenic in different parts of rice plants with an aquatic fern, Marsilea minuta L. A pot experiment was done to study the possibility of using Marsilea minuta as a phytoremediator of arsenic. Rice and Marsilea minuta were allowed to grow together in soils. As a control, Marsilea minuta was also cultured alone in the presence and absence of arsenic (applied at 1 mg/L as irrigation water). We did not find any significant change in the growth of rice due to the association of Marsilea minuta, though it showed a reduction of approximately 58.64% arsenic accumulation in the roots of rice grown with the association of fern compared to that grown without fern. We measured a bioaccumulation factor (BF) of > 5.34, indicating that Marsilea minuta could be a good phytoremediator of arsenic in rice fields. PMID- 29018968 TI - Determination of the complete genomic sequence of grapevine virus H, a novel vitivirus infecting grapevine. AB - The present work reports the discovery and the complete genome sequencing of a novel member of the genus Vitivirus in the family Betaflexiviridae (subfamily Trivirinae) from a symptomless grapevine of unknown variety from Portugal. Total RNAs extracted from phloem scrapings were sequenced using Illumina technology. Bioinformatic analysis of the RNA-seq data revealed a mixed infection involving three viruses and two viroids in addition to a novel vitivirus. Completion and analysis of the genome sequence (7446 nt excluding the polyA tail) showed a typical vitivirus genomic organization. Phylogenetic analysis of the various ORFs clearly showed the new virus to belong in the genus Vitivirus, but sequence divergence firmly establishes it as a member of a new species, for which the name "Grapevine virus H" is proposed. PMID- 29018969 TI - Biomineralisation of carbonate and sulphate by the halophilic bacterium Halomonas maura at different manganese concentrations. AB - The ability of Halomonas maura to bioprecipitate carbonate and sulphate crystals in solid media at different manganese concentrations has been demonstrated in this study for the first time. The precipitated minerals were studied by X-ray diffraction, scanning and transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The precipitated minerals were different based on the manganese concentration present in the medium and the incubation time. In the absence of manganese, H. maura formed pseudokutnahorite crystals; in the presence of manganese, the concentration in the culture medium determined the precipitation carbonates, such as rhodochrosite and dolomites. However, in the presence of low concentrations of manganese chloride (MnCl2) (5 g/l), kutnohorite crystals were also formed. Finally, when H. maura was grown in the presence of manganese, small amounts of sulphate crystals (such as bassanite and gypsum) were detected. Our study of the precipitated minerals showed an active role of H. maura in the biomineralisation process, but the geochemical conditions, and the manganese concentrations in particular, were clearly influential. PMID- 29018970 TI - Andersen's syndrome mutants produce a knockdown of inwardly rectifying K+ channel in mouse skeletal muscle in vivo. AB - Andersen's syndrome (AS) is a rare autosomal disorder that has been defined by the triad of periodic paralysis, cardiac arrhythmia, and developmental anomalies. AS has been directly linked to over 40 different autosomal dominant negative loss of-function mutations in the KCNJ2 gene, encoding for the tetrameric strong inward rectifying K+ channel KIR2.1. While KIR2.1 channels have been suggested to contribute to setting the resting membrane potential (RMP) and to control the duration of the action potential (AP) in skeletal and cardiac muscle, the mechanism by which AS mutations produce such complex pathophysiological symptoms is poorly understood. Thus, we use an adenoviral transduction strategy to study in vivo subcellular distribution of wild-type (WT) and AS-associated mutant KIR2.1 channels in mouse skeletal muscle. We determined that WT and D71V AS mutant KIR2.1 channels are localized to the sarcolemma and the transverse tubules (T-tubules) of skeletal muscle fibers, while the ?314-315 AS KIR2.1 mutation prevents proper trafficking of the homo- or hetero-meric channel complexes. Whole cell voltage-clamp recordings in individual skeletal muscle fibers confirmed the reduction of inwardly rectifying K+ current (IK1) after transduction with ?314 315 KIR2.1 as compared to WT channels. Analysis of skeletal muscle function revealed reduced force generation during isometric contraction as well as reduced resistance to muscle fatigue in extensor digitorum longus muscles transduced with AS mutant KIR2.1. Together, these results suggest that KIR2.1 channels may be involved in the excitation-contraction coupling process required for proper skeletal muscle function. Our findings provide clues to mechanisms associated with periodic paralysis in AS. PMID- 29018971 TI - CSF RBC count in successful first-attempt lumbar puncture: the interest of atraumatic needle use. AB - The objective of this study is to analyze CSF red blood cell (RBC) count from first-attempt lumbar punctures and to analyze parameters associated with first attempt lumbar punctures and hemorrhagic lumbar puncture. This is a prospective analysis of consecutive patients who underwent lumbar puncture for any reason other than suspected acute subarachnoid hemorrhage. Analyzed parameters were the following: age, indication for lumbar puncture, aPTT ratio, PTT, platelet count, patient's position, needle type (atraumatic/standard), needle diameter, person performing lumbar puncture (medical student/resident/attending physician), number of lumbar levels punctured, necessity of needle repositioning, CSF RBC and white blood cell count, and protein level. Lumbar puncture resulting in RBC count > 5 RBC/mm2 was classified as hemorrhagic lumbar puncture (different cut-offs were studied: > 5/> 10/> 100/> 500/> 1000 RBC). In total, 169 elective lumbar punctures in 165 different patients were included. First-attempt lumbar puncture occurred in 22% > 5 RBC, in 19.5% > 10 RBC, in 4.5% > 100 RBC, in 3% > 500 RBC, and 1.5% > 1000 RBC count. First-attempt lumbar puncture was associated with non hemorrhagic lumbar puncture for each of the RBC count cut-offs (OR for non hemorrhagic lumbar puncture in first-attempt lumbar puncture 2.8, 95% CI 1.4 5.7). The presence of a hemorrhagic disorder (concerning cerebral amyloid angiopathy in all patients) and higher aPTT ratio were associated with hemorrhagic lumbar puncture. Atraumatic needle use was associated with non hemorrhagic lumbar puncture for RBC count cut-offs <= 5 and <= 10 RBC (OR for non hemorrhagic lumbar puncture in atraumatic needle use 2.5 [95% CI 1.3-4.8] and 2.2 [95% CI 1.1-4.4], respectively). First-attempt lumbar puncture and hemorrhagic lumbar puncture were not associated with other parameters. Slightly elevated CSF RBC count after first-attempt lumbar puncture occurs relatively frequently, but is even more frequent in non-first-attempt lumbar puncture. Atraumatic needle use is associated with non-hemorrhagic lumbar puncture. PMID- 29018972 TI - Birth management and fetal outcome in multiple gestation: analysis of 1.444 births. AB - PURPOSE: Since the late 1990s, controversies came up concerning the mode of delivery for multiples births. The twin birth study indicated no difference in maternal and fetal outcome between planned vaginal delivery and planned caesarean section, but did not analyze the influence of maternal and fetal characteristics or the obstetric management in vaginal birth. The purpose of this study is to analyze these parameters regarding fetal outcome. METHODS: A large-scale retrospective analysis of twin births (n = 1.444) was performed at a university medical center. The analysis included pregnancy, delivery, and maternal and fetal parameters, including pH and base excess (BE) differences between the first- and second-born twin (delta pH, delta BE). RESULTS: Delta pH correlated significantly with the birth interval for various positions of twins in the womb (p < 0.05). The longer the birth interval, the greater the delta pH with a lower pH of the second twin. Delta BE values were significantly correlated with the birth interval for a combination of twins in cephalic and breech presentation. Furthermore, it could be shown that higher differences in birth weight between the first/second twin are associated with higher delta pH, higher delta BE values (all p < 0.05). We found significantly decreasing delta pH values in vaginal deliveries over secondary and, finally, primary caesarean sections (p < 0.001). CONCLUSION: We conclude a vaginal delivery of twin appears safe if experienced staff monitor birth weight discrepancies, birth interval, and blood values consequently. A good outcome also for the second twin delivered spontaneously is nevertheless feasible if experienced staff is available. PMID- 29018973 TI - Clinical significance of fecal calprotectin for the early diagnosis of abdominal type of Henoch-Schonlein purpura in children. AB - The objective of this study is to explore the value of fecal calprotectin (FC) for early screening of the abdominal type of Henoch-Schonlein purpura (AHSP) in children. The study cohort included 40 children with AHSP treated at Shengjing Hospital of China Medical University from November 2014 to November 2015, and 40 children hospitalized in the Division of Pediatric Orthopedics in the corresponding period were selected as a control group. Fresh fecal samples were collected in the acute phase of the first visit (FC1), 3 days after treatment (FC2), and 7 days after treatment (FC3) from the AHSP group and the control group. Calprotectin levels in the fecal samples were measured using an enzyme linked immunosorbent assay. At the same time, gastrointestinal performance and the laboratory examination indicators white blood cell (WBC) count and C-reactive protein (CRP) level were recorded. The median levels of FC1 (3053 MUg/g) and FC2 (2778.3 MUg/g) were higher than in the control group (102.5 MUg/g), with significant differences among the three groups (p < 0.001). FC levels gradually decreased in remission, and the level of FC3 on day 7 was close to that of the control samples (p > 0.05). When the optimal cut-off was 264.5 MUg/g, the area under the receiver operating characteristic (ROC) curve of FC for diagnosis of AHSP was 0.961 with a corresponding sensitivity and specificity of 93.1 and 87.5%, respectively. The levels of FC in children with AHSP were positively correlated with WBC count (r s = 0.688) and CRP value (r s = 0.513). The area under the ROC curve of WBC count for screening AHSP was 0.785 when the optimal cut-off value was 11.1 * 109/L with a corresponding sensitivity and specificity of 81.5 and 62.5%, respectively. The area under the ROC curve of CRP was 0.963 when the optimal cut-off value was 5.72 mg/dL with a corresponding sensitivity and specificity of 88.9 and 100%, respectively. Comparisons of FC, WBC count, and CRP level as diagnostic indicators of AHSP showed that the sensitivity of FC was higher than that of the WBC count and CRP level, and its diagnostic value was better than that of the WBC count. The levels of FC began to increase in the early stages of AHSP, showing a decreasing tendency in remission and tending to be within a normal range after a week or so. For the early diagnosis of AHSP, FC with a cut-off level of 264.5 MUg/g has good sensitivity and specificity. The sensitivity of FC is better than that of the traditional inflammation indicators CRP and WBC count, and its diagnostic performance is better than WBC count; FC can be suitable as a new marker for the early diagnosis of AHSP. PMID- 29018975 TI - Progressive anterior operculum syndrome due to frontotemporal lobar degeneration. PMID- 29018974 TI - Catalytic diversity and homotropic allostery of two Cytochrome P450 monooxygenase like proteins from Trichoderma brevicompactum. AB - Trichothecenes are the secondary metabolites produced by Trichoderma spp. Some of these molecules have been reported for their ability to stimulate plant growth by suppressing plant diseases and hence enabling Trichoderma spp. to be efficiently used as biocontrol agents in modern agriculture. Many of the proteins involved in the trichothecenes biosynthetic pathway in Trichoderma spp. are encoded by the genes present in the tri cluster. Tri4 protein catalyzes three consecutive oxygenation reaction steps during biosynthesis of isotrichodiol in the trichothecenes biosynthetic pathway, while tri11 protein catalyzes the C4 hydroxylation of 12, 13-epoxytrichothec-9-ene to produce trichodermol. In the present study, we have homology modelled the three-dimensional structures of tri4 and tri11 proteins. Furthermore, molecular dynamics simulations were carried out to elucidate the mechanism of their action. Both tri4 and tri11 encode for cytochrome P450 monooxygenase like proteins. These data also revealed effector induced allosteric changes on substrate binding at an alternative binding site and showed potential homotropic negative cooperativity. These analyses also showed that their catalytic mechanism relies on protein-ligand and protein-heme interactions controlled by hydrophobic and hydrogen-bonding interactions which orient the complex in optimal conformation within the active sites. PMID- 29018976 TI - Capillary loss on nailfold capillary microscopy is associated with mortality in systemic sclerosis. AB - The objective of this study is to test the association of the severity of nailfold capillaroscopy (NFC) abnormalities with mortality in systemic sclerosis (SSc). One hundred and seventy SSc patients underwent an extensive evaluation (including high-resolution computed tomography, pulmonary function tests, and Doppler echocardiography) at baseline following a standard protocol. Capillary loss on NFC was evaluated using the avascular score (AS, ranging from 0 to 3), and the mean number of ectasias, megacapillaries, and hemorrhages per finger was also recorded. After a mean period of 10.1 +/- 4.9 years, the life status of the patients was ascertained. Univariate and multivariate Cox proportional hazards models were used for statistical analysis. Overall, 73 patients died. By univariate Cox analysis, the AS was significantly associated with mortality (hazard ratio [HR] = 1.64, 95% CI 1.22 to 2.19, p = 0.001). In our study, this association was stronger than that of race, gender, anticentromere antibodies, anti-topoisomerase I antibodies, and form of disease and had similar strength to that of skin score in univariate analyses. However, after controlling for a combination of variables (age, skin score, gender, race, signs of peripheral ischemia, and extent of interstitial lung disease, all independently associated with mortality), the association of AS with mortality was blunted (HR = 1.15, 95% CI 0.80 to 1.65, p = 0.445). Other NFC variables were not related to mortality. AS was associated with higher risk of death and, despite not having an independent association with mortality after controlling for a set of demographic and clinical variables, may be a useful tool in prognostic evaluation of SSc. PMID- 29018977 TI - Biodegradation of tetracycline antibiotics in A/O moving-bed biofilm reactor systems. AB - An anaerobic/aerobic moving-bed biofilm (A/O-MBBR) reactor system was constructed, and the treatment efficiency of aqueous antibiotics in wastewater was investigated. The effects of antibiotics on the microbial communities in the A/O-MBBR were also investigated. Under the optimized reaction conditions, removal of tetracycline antibiotics (TCs) was studied in a series of experiments. When a low concentration of tetracycline (TC) was added to the reactor system, high removal efficiency of conventional pollutants (TC concentration decreased from 10 turn to 2.8 MUg L-1) was achieved. When mixed TCs (50 MUg L-1) were added to the system, the removal efficiencies of chlortetracycline (CTC), TC and oxytetracycline (OTC) reached 52.03, 41.79, and 38.42%, respectively. TC degradation was decreased to 21.16% when the antibiotic concentration was 500 MUg L-1; exposure to this TC concentration destroyed the community structure of the activated sludge bacteria in the reactor. The products of the biodegradation analysis revealed the possible degradation pathways functioning in the experimental A/O-MBBRs. PMID- 29018978 TI - Identification of ZFPM2 mutations in sporadic conotruncal heart defect patients. AB - Conotruncal heart defects (CTDs) are a group of cardiac malformations that involve outflow tract anomalies and the arterial pole of the heart. Recent reports have identified mutations in a number of genes associated with CTDs in human and animal models. ZFPM2 plays a role in cardiac development by acting as a transcriptional cofactor that interacts with GATA4. Because ZFPM2 was found to be important for cardiac development in a knockout mouse model, we screened for ZFPM2 mutations in 528 CTD patients. We identified six rare and nonsynonymous ZFPM2 variants, and this was the first time that five of these variants (R698Q, R736L, E1005K, T32A, and I488V) were reported in East Asians. Western blots showed that there was no significant difference in the protein expression of wild type ZFPM2, ZFPM2R698Q, or ZFPM2R736L. A dual luciferase reporter assay demonstrated that both ZFPM2 mutants R698Q and R736L reduced GATA4-mediated transcription. However, when ZFPM2R698Q was co-transfected with GATA4, BNP promoter activity increased significantly, whereas co-transfection with ZFPM2R736L and GATA4 did not significantly increase BNP promoter activity. This suggests that the R698Q mutation may affect the ability of ZFPM2 to bind GATA4. PMID- 29018979 TI - Hyperhomocysteinemia and cardiovascular disease in animal model. AB - Hyperhomocysteinemia is an independent risk factor for cardiovascular disease and is associated with primary causes of mortality and morbidity throughout the world. Several studies have been carried out to evaluate the effects of a diet inducing cystathionine-beta-synthase, methyltetrafolate, folic acid, and vitamin B supplemented with methionine on the homocysteine metabolism and in lowering the plasma total homocysteine levels. A large number of molecular and biomedical studies in numerous animals, such as mice, rabbits, and pigs, have sought to elevate the plasma total homocysteine levels and to identify a disease model for human hyperhomocysteinemia. However, a specific animal model is not suitable for hyperhomocysteinemia in terms of all aspects of cardiovascular disease. In this review article, the experimental progress of animal models with plasma total homocysteine levels is examined to identify a feasible animal model of hyperhomocysteinemia for different aspects. PMID- 29018981 TI - Diffusion coefficient in biomembrane critical pores. AB - Diffusion is fundamental to the random movement of solutes in solution throughout biological systems. Theoretical studies of diffusing solutes across cell membranes confined in a microscopic size of pores have been an interesting subject in life and medical sciences. When a solute is confined in a critical area of membrane pores, which shows a quite different behavior compared to the homogeneous-bulk fluid whose transport is isotropic in all directions. This property has novel features, which are of considerable physiological interest. PMID- 29018980 TI - Phonographic detection of mechanical heart valve thrombosis. AB - The formation of thrombotic deposits affects the functionality of mechanical prosthetic heart valves; as a consequence, mechanical valves thrombosis needs early diagnosis to prevent thromboembolic events. This paper compares the acoustic signals produced by two commercial bileaflet mechanical heart valves in the closing phase to detect the presence of thrombi. The closing sounds were recorded in vitro by means of a phonocardiographic device under different hydrodynamic conditions. Thrombotic deposits of different weight and shape were applied onto the valve leaflet and the annular housing, until the movement of one leaflet was completely blocked. From the acoustic signals, the corresponding spectra were calculated and four diagnostic frequency bands were identified: their comparison allowed detecting malfunctioning valves because of the presence of thrombotic formations. PMID- 29018982 TI - Estimating Emotions Through Language Statistics and Embodied Cognition. AB - Recent research has suggested that language processing activates perceptual simulations. We have demonstrated that findings that have been attributed to an embodied cognition account can also be explained by language statistics, because language encodes perceptual information. We investigated whether comprehension of emotion words can be explained by an embodied cognition or a language statistics account. A corpus linguistic study comparing emotions words showed that words denoting the same emotions (happy-delighted) co-occur more frequently than different emotions (happy-angry). These findings were used in two experiments in which participants read same-emotion and different-emotion sentence pairs. Sentence pairs with different emotions yielded longer RTs than sentences with the same emotions both in a cognitive task tailored toward linguistic representations and a task tailored toward embodied representations. These findings contribute to a growing body of literature that demonstrates that language processing does not always rely solely on perceptual simulation. PMID- 29018985 TI - Salinity effect on simultaneous nitrification and denitrification, microbial characteristics in a hybrid sequencing batch biofilm reactor. AB - The effect of increasing salinity on nitrogen removal via simultaneous nitrification and denitrification, microbial activities and extracellular polymeric substances (EPS) were investigated in a hybrid sequencing batch biofilm reactor filled with soft combination carriers. In the influent salinity range from 1.0 to 2.0%, average COD, NH4+-N and TN removal efficiencies were higher than 97.1, 97.8 and 86.4% at the steady state. When salinity was increased to 2.5 and 3.0%, ammonium oxidation was obviously inhibited in the reactor. For both suspended sludge (S-sludge) and biofilm, specific ammonium oxidation rate, specific nitrite oxidation rate, specific oxygen uptake rate and dehydrogenase activity reduced with the increase of salinity. The quantity of total EPS increased with the increase of salinity from 1.0 to 2.0%. Generally, humic substances were the dominant composition of EPS in both S-sludge and biofilm, with the percentages of 43.9-54.0 and 43.8-64.6% in total EPS. PMID- 29018984 TI - Selenium status of children in Kashin-Beck disease endemic areas in Shaanxi, China: assessment with mercury. AB - The causes of Kashin-Beck disease (KBD) in children are multifactorial, and particular consideration has been given to childhood selenium (Se) deficiency. In this study, dietary intake of Se and mercury (Hg) was determined at KBD areas to investigate the Se status and risks. Therefore, total Hg and Se levels were investigated in scalp hair samples and in daily intake food samples of 150 schoolchildren in Yongshou County of Shaanxi, China. The results showed that the average concentration of Se in children's hair has risen to 302 ng g-1 and significantly increased compared to the data reported decades ago. Children at KBD endemic areas likely have improved Se status due to the Se supplementation in food at recent decades. However, all the children in the study areas still showed lower Se status compared to those in other non-KBD areas of China. The probable daily intake of Se in the study areas was still lower after stopping Se supplementation in food at KBD areas, which is 17.96 MUg day-1. Food produced locally cannot satisfy the lowest demand for Se nutrition for local residents. If the interactions of Se-Hg detoxification are considered, Hg intake from food exacerbates Se deficiency at the KBD areas. PMID- 29018983 TI - Nutritional habits, risk, and progression of Parkinson disease. AB - Parkinson disease (PD) is a multifactorial disease, where a genetic predisposition combines with putative environmental risk factors. Mounting evidence suggests that the initial PD pathological manifestations may be located in the gut to subsequently affect brain areas. Moreover, several lines of research demonstrated that there are bidirectional connections between the central nervous system and the gut, the "gut-brain axis" that influences both brain and gastrointestinal function. This opens a potential therapeutic window suggesting that specific dietary strategies may interact with the disease process and influence the risk of PD or modify its course. Dietary components can also theoretically modulate the chronic activation of the inflammatory response that is associated with aging, the strongest risk factor for PD, that has been suggested to hasten the underlying neurodegenerative process in PD. Here, we reviewed the evidence supporting an association between certain dietary compound and either the risk or progression of PD and have provided an overview of the possible pathomechanisms linking nutrition and neurodegeneration. The results of our review would not support a clear role for any dietary components in reducing the risk or progression of PD. However, the evidence favouring a connection between gut abnormalities, inflammation, and neurodegeneration in PD have become too compelling to be ignored, so that further research, also in the field of nutritional genomics, is highly warranted. PMID- 29018986 TI - Hypokalemia during antibiotic treatment for bone and joint infections. AB - PURPOSE: During treatment of bone and joint infections (BJIs) with multiple antibiotic therapy, hypokalemia has been reported as a rare side effect. The aim of this study was to evaluate incidence and risk factors for hypokalemia in a cohort of patients treated with multidrug therapy for BJIs, in a single center. METHODS: We retrospectively reviewed 331 clinical files of 150 consecutive patients (65% males; median age 59 years, 95% CI 55-62) admitted repeatedly to our Osteomyelitis Department for treatment of chronic BJIs. Besides surgical debridement, patients received a combination of oral and intravenous antibiotics. Routine laboratory tests were performed at admittance and repeated at least weekly. Possible hypokalemia risk factors were recorded and analyzed. RESULTS: Progressive kalemia reduction occurred in > 39% of patients during hospitalization; prevalence of marked hypokalemia (K + < 3.5 mEq/l) increased from 5% at admission to 11% (up to 22%) at day 14. Correlated factors were: age >= 68 years (p = 0.033), low serum albumin (p = 0.034), treatment with vancomycin (p < 0.001), rifampicin (p = 0.017) and ciprofloxacin (p < 0.001) and use of thiazide (p = 0.007) or loop diuretics (p = 0.029 for K + < 3.5 mEq/l). At multivariate regression analysis, the main determinants of hypokalemia were simultaneous use of diuretics (p = 0.007) and older age (p < 0.049). CONCLUSIONS: Appearance of severe hypokalemia is a frequent event among patients treated for BJIs with multiple antibiotic therapy, when this is prescribed in older age patients and associated with simultaneous use of diuretics. Due to possible increase in mortality risk in the short term, particular caution should be paid during intensive antibiotic treatment in these groups of patients. PMID- 29018987 TI - Seasonal dynamics of endoparasitic infections at an organic goat farm and the impact of detected infections on milk production. AB - This study evaluated patterns and species composition of parasitic infections detected over a 1-year period at an organic goat farm. As a result of coprological examination, the overall prevalence of observed strongylids (99%), coccidia of the genus Eimeria (98%), and Muellerius capillaris lungworms (93%) was calculated. The most prevalent strongylids recovered from incubated fecal samples were Haemonchus contortus (42%), genera Trichostrongylus (23%), Oesophagostomum columbianum (13%), and Teladorsagia circumcincta (11%). A maximum intensity of coccidia infection 5150 oocysts per gram, strongylids infection 9900 eggs per gram and lungworm infection 867.26 larvae per gram were detected. The various effects (including environment, host, and parasites) on milk yield, lactose, protein, and fat were evaluated using generalized linear mixed models. Milk yield (P < 0.0001), milk fat (P < 0.01), and lactose (P < 0.0001) were affected by month, i.e., these parameters were influenced by the month of the year, regardless of the individual goat. With the intensity of infection detected in our study, only protein content was affected (P < 0.01) by parasitic infection (exclusively caused by strongylids). Correlation between measurements from one individual revealed that the goat itself can substantially decrease protein content but has much less of an effect on fat, milk yield, and lactose. Based on our results, we can conclude that a low intensity of parasitic infections does not significantly affect milk yield and the qualitative parameters of milk. PMID- 29018989 TI - Effects of prior aerobic exercise on sitting-induced vascular dysfunction in healthy men. AB - INTRODUCTION: Acute aerobic exercise prevents sitting-induced impairment of flow mediated dilation (FMD). Further, evidence suggests that sitting-induced impairment of FMD occurs via an oxidative stress-dependent mechanism that disrupts endothelial function. PURPOSE: We hypothesized that acute aerobic exercise would prevent impairment of femoral artery FMD by limiting oxidative stress responses that increase endothelin-1 (ET-1) levels and disrupt nitric oxide (NO) status. METHODS: In a randomized, cross-over study, healthy men (n = 11; 21.2 +/- 1.9 years) completed two 3 h sitting trials that were preceded by 45 min of either quiet rest (REST) or a single bout of continuous treadmill exercise (65% maximal oxygen consumption) (EX). Superficial femoral artery FMD, plasma glucose, malondialdehyde (MDA), ET-1, arginine (ARG) and its related metabolites [homoarginine (HA), asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA)] were assessed at baseline, 1 h following EX (or REST) (0 h), and at 1 h intervals during 3 h of uninterrupted sitting. Data were analyzed using repeated measures ANOVA. RESULTS: During REST, femoral artery FMD declined from baseline (2.6 +/- 1.8%) at 1, 2, and 3 h of sitting and resting shear rate decreased at 3 h. In contrast, when sitting was preceded by EX, femoral artery FMD (2.7 +/- 2.0%) and resting shear rate responses were unaffected. No between trial differences were detected for plasma glucose, MDA, ET-1, ARG, HA, ADMA, or SDMA. CONCLUSION: Prior aerobic exercise prevented the decline in femoral artery FMD that is otherwise induced by prolonged sitting independent of changes in oxidative stress, ET-1, and NO status. PMID- 29018991 TI - Ellagic acid glycosides with hepatoprotective activity from traditional Tibetan medicine Potentilla anserina. AB - Two new gallic acid glycosides, potentillanosides G (1) and H (2), were newly isolated from the methanol extract of the tuberous roots of Potentilla anserina (Rosaceae), together with a known compound, ellagic acid 3-O-alpha-L rhamnopyranoside (3). Their structures were elucidated on the basis of chemical and physicochemical evidence. Among the constituents, potentillanoside H (2, IC50 = 99.5 MUM) was found to show hepatoprotective activity. PMID- 29018992 TI - Tenocyte proliferation and migration promoted by rat bone marrow mesenchymal stem cell-derived conditioned medium. AB - OBJECTIVES: To investigate the impact of secreted factors of rat bone marrow mesenchymal stem cells (MSCs) on the proliferation and migration of tenocytes and provide evidence for the development of MSC-based therapeutic methods of tendon injury. RESULTS: Rat bone marrow mesenchymal stem cell-derived conditioned medium (MSC-CM) promoted the proliferation of tenocytes within 24 h and decreased the percentage of tenocytes in G1 phase. MSC-CM activated the extracellular signal regulated kinase1/2 (ERK1/2) signal molecules, while the ERK1/2 inhibitor PD98059 abrogated the MSC-CM-induced proliferation of tenocytes, decreased the fraction of tenocytes in the G1 phase and elevated p-ERK1/2 expression. Furthermore, MSC CM promoted the migration of tenocytes within 6 h, enhanced the formation of filamentous actin (F-actin) and increased the cellular and nuclear stiffness of tenocytes. CONCLUSIONS: MSC-CM promotes tenocyte proliferation by changing cell cycle distribution via the ERK1/2 signaling pathway. MSC-CM-induced tenocyte migration was accompanied by cytoskeletal polymerization and increases in cellular and nuclear stiffness. PMID- 29018990 TI - Safety and Effectiveness of an Endoscopically Placed Duodenal-Jejunal Bypass Device (EndoBarrier(r)): Outcomes in 114 Patients. AB - BACKGROUND: The duodenal-jejunal bypass liner (DJBL) is an endoscopically placed device designed to achieve weight loss and improve glycemic control in obese patients. Previous studies report promising results but typically included small patient numbers and short follow-up. This study aims to determine the safety and effectiveness of the device. METHODS: Study design: A series of all patients treated by the DJBL at our institutions. OUTCOME MEASUREMENTS: Weight loss, biochemical measures, complications. RESULTS: Between July 2012 and March 2015, 114 consecutive patients were treated for a mean 51.1 weeks (standard deviation (SD) 19.9 weeks). Mean total body weight change from baseline was 12.0 kg (SD 8.5 kg, p < 0.001). Mean percent total body weight loss (%TWL) was 10.5% (SD 7.3%). Mean HbA1c was not significantly improved, but of 10 patients on insulin, 4 ceased insulin and 4 reduced insulin dosages. There was a significant decrease in hemoglobin and total cholesterol and a significant increase in serum alkaline phosphatase. Seventy-four percent of patients experienced at least one adverse event, some of them serious including 6 device obstructions, 5 gastrointestinal hemorrhages, 2 liver abscesses, and 1 acute pancreatitis. Seventy-four percent of patients experienced weight gain after removal with a mean 4.5 +/- 6.1 kg (p < 0.0001) within the first 6 months after explantation. CONCLUSIONS: The DJBL provides significant but highly variable weight loss. Glycemic control was variable. Most insulin-requiring T2DM patients ceased or reduced insulin. Most patients experience an adverse event and most regain significant weight after device removal. Major adverse events can occur, including the potentially life threatening complications of hepatic abscess and gastrointestinal hemorrhage. PMID- 29018988 TI - Circulating chromogranin A and its fragments as diagnostic and prognostic disease markers. AB - Chromogranin A (CgA), a secretory protein released in the blood by neuroendocrine cells and neurons, is the precursor of various bioactive fragments involved in the regulation of the cardiovascular system, metabolism, innate immunity, angiogenesis, and tissue repair. After the original demonstration that circulating CgA can serve as a biomarker for a wide range of neuroendocrine tumors, several studies have shown that increased levels of CgA can be present also in the blood of patients with cardiovascular, gastrointestinal, and inflammatory diseases with, in certain cases, important diagnostic and prognostic implications. Considering the high structural and functional heterogeneity of the CgA system, comprising precursor and fragments, it is not surprising that the different immunoassays used in these studies led, in some cases, to discrepant results. Here, we review these notions and we discuss the importance of measuring total-CgA, full-length CgA, specific fragments, and their relative levels for a more thorough assessment of the pathophysiological function and diagnostic/prognostic value of the CgA system. PMID- 29018993 TI - Dopaminergic and non-dopaminergic gait components assessed by instrumented timed up and go test in Parkinson's disease. AB - The timed up and go test (TUG) is a widely used clinical test for the evaluation of balance and mobility. An instrumented version of TUG (iTUG) has been proposed to provide quantitative information on TUG performances. Here, we hypothesized that L-dopa may differently influence gait parameters recorded by a portable inertial sensor. To test this idea, we evaluated iTUG test in patients with Parkinson's disease (PD), both in L-dopa OFF and ON state. Twenty-eight PD patients performed the iTUG. Subjects were instructed to perform the task both in practical "OFF" and "ON" state. The system differentiated the test in six phases, recording phase durations, three-axial accelerations, average and peak angular speeds during turning. In all patients, sit-to-stand vertical and medio-lateral accelerations together with turning phase duration and angular speeds improved after L-dopa administration, while sit-to-stand and stand-to-sit phases antero posterior accelerations were less responsive. In PD, L-dopa modulates iTUG in different ways, mostly improving the turning phases and less acting on postural controls during the sit-to-stand and stand-to-sit phases. Our results suggest different involvement of dopaminergic mechanisms on gait as assessed by iTUG. This is important for those aspects which are not improved by pharmacological therapy. PMID- 29018994 TI - Proper land use for heavy metal-polluted soil based on enzyme activity analysis around a Pb-Zn mine in Feng County, China. AB - Enzymes in the soil are useful for assessing heavy metal soil pollution. We analyzed the activity of a number of enzymes, including urease, protease, catalase, and alkaline phosphatase, in three types of land (farmland, woodland, and grassland) to evaluate soil pollution by heavy metals (Pb, Zn, and Cd). Our results showed that the tested soil was polluted by a combination of Pb, Zn, and Cd, but the primary pollutant was Cd. An ecological dose analysis demonstrated that urease was the most sensitive enzyme to Pb and Cd in the farmland, and catalase and phosphatase were the most sensitive enzymes to Pb, Zn, and Cd in the woodland and grassland. The ecological risk of Cd (E Cd ) was the smallest in all three types of land, suggesting that Cd was the major metal inhibiting enzyme activity. Electrical conductivity (EC) was shown to be a negative regulator, while nitrogen, phosphorus, and clay contents were positive regulators of soil enzyme activity. The total enzyme index (TEI) inhibition rates in the woodland were 22.2 and 38.6% under moderate and heavy pollution, respectively, which were lower than those of the other two types of land. Therefore, woodlands might be the optimum land use choice in relieving heavy metal pollution. Taken together, this study identified the key metal pollutant inhibiting soil enzyme activity and suitable land use patterns around typical metal mine. These results provide possible improvement strategies to the phytomanagement of metal-contaminated land around world. PMID- 29018995 TI - Impulsivity and Response Latency in Non-Suicidal Self-Injury: The Role of Negative Urgency in Emotion Regulation. AB - Impulsivity is thought to be a contributing factor in non-suicidal self-injury (NSSI), yet the research is limited and inconsistent. In particular, little is known about how impulsivity is associated with response latency between initial urge and later self-injury, emotion regulation processes, or severity of NSSI. In this study, we tested group differences between participants with and without a history of NSSI on a questionnaire measure of impulsivity. In addition, we tested hypothesized correlations between impulsivity and relevant variables within the NSSI sample using questionnaires and self-reported response latency between urge and injury. Participants included 159 undergraduate students, 84 with an NSSI history and 75 without an NSSI history. Results indicated greater impulsivity on facets of Urgency and (lack of) Perseverance for the NSSI group. Within the NSSI sample, facets of impulsivity were associated with difficulties in emotion regulation and NSSI severity, but not response latency. In addition, response latency, a possible behavioral marker of impulsivity, was not associated with emotion regulation processes or NSSI frequency. These results suggest that higher scores on self-report measures of impulsivity, but not behavioral response latency measures, are associated with emotion regulation processes in individuals who self-injure. PMID- 29018997 TI - Gastrointestinal perforation related to lenvatinib, an anti-angiogenic inhibitor that targets multiple receptor tyrosine kinases, in a patient with metastatic thyroid cancer. AB - Lenvatinib, a novel potent multikinase inhibitor, was approved for the treatment of radioiodine-refractory differentiated thyroid cancer based on results from phase III trial (SELECT study). Thyroid cancer is a diverse disease that includes anaplastic thyroid cancer (ATC), which the most aggressive form of the disease, although it accounts for <2% of all thyroid cancers. Current treatments for ATC have limited efficacy. We report the case of a woman with recurrent well differentiated papillary carcinoma of the thyroid that had transformed into ATC who developed a perforation of the small intestine secondary to a marked effect of lenvatinib. She received lenvatinib (24 mg once a day) at only two doses during two weeks due to pleurodesis with talc for malignant pleural effusion. Eventually, she developed peritonitis due to the perforation and died of sepsis. However, an autopsy revealed marked efficacy of lenvatinib for ATC at a metastatic site in the small intestine despite limited exposure to the drug. Here, we report on our experience with lenvatinib treatment and gastrointestinal perforation concerning anti-angiogenic therapy. PMID- 29018998 TI - Nano-scale simulation based study of creep behavior of bimodal nanocrystalline face centered cubic metal. AB - In this paper, the creep behavior of nanocrystalline Ni having bimodal grain structure is investigated using molecular dynamics simulation. Analysis of structural evolution during the creep process has also been performed. It is observed that an increase in size of coarse grain causes improvement in creep properties of bimodal nanocrystalline Ni. Influence of bimodality (i.e., size difference between coarse and fine grains) on creep properties are found to be reduced with increasing creep temperature. The dislocation density is observed to decrease exponentially with progress of creep deformation. Grain boundary diffusion controlled creep mechanism is found to be dominant at the primary creep region and the initial part of the secondary creep region. After that shear diffusion transformation mechanism is found to be significantly responsible for deformation as bimodal nanocrystalline Ni transforms to amorphous structure with further progress of the creep process. The presence of <0, 2, 8, 5>, <0, 2, 8, 2 >, and <0, 1, 10, 2 > distorted icosahedra has a significant influence on creep rate in the tertiary creep regime according to Voronoi cluster analysis. PMID- 29018996 TI - Water availability and environmental temperature correlate with geographic variation in water balance in common lizards. AB - Water conservation strategies are well documented in species living in water limited environments, but physiological adaptations to water availability in temperate climate environments are still relatively overlooked. Yet, temperate species are facing more frequent and intense droughts as a result of climate change. Here, we examined variation in field hydration state (plasma osmolality) and standardized evaporative water loss rate (SEWL) of adult male and pregnant female common lizards (Zootoca vivipara) from 13 natural populations with contrasting air temperature, air humidity, and access to water. We found different patterns of geographic variation between sexes. Overall, males were more dehydrated (i.e. higher osmolality) than pregnant females, which likely comes from differences in field behaviour and water intake since the rate of SEWL was similar between sexes. Plasma osmolality and SEWL rate were positively correlated with environmental temperature in males, while plasma osmolality in pregnant females did not correlate with environmental conditions, reproductive stage or reproductive effort. The SEWL rate was significantly lower in populations without access to free standing water, suggesting that lizards can adapt or adjust physiology to cope with habitat dryness. Environmental humidity did not explain variation in water balance. We suggest that geographic variation in water balance physiology and behaviour should be taken account to better understand species range limits and sensitivity to climate change. PMID- 29019000 TI - Does Caesarean Section Affect Breastfeeding Practices in China? A Systematic Review and Meta-Analysis. AB - Objectives To ascertain the association between caesarean delivery and breastfeeding practices in China. Methods We conducted a systematic review and meta-analysis following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Meta-analysis Of Observational Studies in Epidemiology (MOOSE) guidelines. Electronic databases of CNKI, Medline, EMBASE, CINAHL, ProQuest and Science Direct were searched and screened to identify relevant articles from January 1990 to June 2015. Both fixed and random effect meta analysis techniques were used to estimate the pooled effect size between caesarean delivery and breastfeeding outcomes at different time points. Sensitivity analysis and publication bias test were also conducted. Results Forty six studies were eligible for the qualitative synthesis of systematic review; among them, 27 studies were included for the meta-analysis. At the early postpartum period, the odds of exclusive breastfeeding after caesarean section was 47% (pooled OR 0.53, 95% CI 0.41, 0.68) lower than that after vaginal delivery. At 4 months postpartum, the odds of breastfeeding was similarly lower (pooled OR 0.61, 95% CI 0.53, 0.71) for caesarean mothers. Substantial heterogeneity among studies was detected for both breastfeeding outcomes. Subgroup analyses stratified by study design, time points of breastfeeding outcomes and definitions of breastfeeding all confirmed the negative association between caesarean section and breastfeeding prevalence. Conclusions In China, breastfeeding practices were affected adversely by caesarean delivery. Therefore, health policy to improve breastfeeding outcomes should take this into consideration. PMID- 29018999 TI - Population pharmacokinetics of gabapentin in healthy Korean subjects with influence of genetic polymorphisms of ABCB1. AB - The objective of this study was to perform population pharmacokinetic (PK) analysis of gabapentin in healthy Korean subjects and to investigate the possible effect of genetic polymorphisms (1236C > T, 2677G > T/A, and 3435C > T) of ABCB1 gene on PK parameters of gabapentin. Data were collected from bioequivalence studies, in which 173 subjects orally received three different doses of gabapentin (300, 400, and 800 mg). Only data from reference formulation were used. Population pharmacokinetics (PKs) of gabapentin was estimated using a nonlinear mixed-effects model (NONMEM). Gabapentin showed considerable inter individual variability (from 5.2- to 8.7-fold) in PK parameters. Serum concentration of gabapentin was well fitted by a one-compartment model with first order absorption and lag time. An inhibitory Emax model was applied to describe the effect of dose on bioavailability. The oral clearance was estimated to be 11.1 L/h. The volume of distribution was characterized as 81.0 L. The absorption rate constant was estimated at 0.860 h-1, and the lag time was predicted at 0.311 h. Oral bioavailability was estimated to be 68.8% at dose of 300 mg, 62.7% at dose of 400 mg, and 47.1% at dose of 800 mg. The creatinine clearance significantly influenced on the oral clearance (P < 0.005) and ABCB1 2677G > T/A genotypes significantly influenced on the absorption rate constant (P < 0.05) of gabapentin. However, ABCB1 1236C > T and 3435C > T genotypes showed no significant effect on gabapentin PK parameters. The results of the present study indicate that the oral bioavailability of gabapentin is decreased when its dosage is increased. In addition, ABCB1 2677G > T/A polymorphism can explain the substantial inter-individual variability in the absorption of gabapentin. PMID- 29019001 TI - Anaplastic thyroid cancer and hyperfractionated accelerated radiotherapy (HART) with and without surgery. AB - Anaplastic carcinoma of the thyroid gland (ATC) is one of the most aggressive cancers in humans. With insufficient treatment, the disease most often leads to death in suffocation. From 2002, our treatment strategy has been hyperfractionated accelerated radiotherapy (HART) with high doses (64 Gy) to the neck, followed by surgery 4-8 weeks later if feasible, with the aim to gain control in the neck. After a pathology review, 51 patients were diagnosed with ATC in the period 2002-2014 in the south-east of Norway. Thirty-one received HART, and we present a study of these patients, with death in suffocation as the primary endpoint and survival as the second. No patients treated with HART died in suffocation. Six had a tracheostomy during their course of disease, of whom four were dependent on a tracheal cannula when they died. The best median survival, 19 months, was obtained in the 13 patients where both radiotherapy and surgery were possible as primary treatments. Only surgery came out as a prognostic factor for survival in multivariate analysis. Patients surviving more than 2 years were characterised by having surgery with R0 resection and no or small residual foci of ATC in the specimens. Stage 4C patients survived 3 months only. PMID- 29019002 TI - A meta-analysis of clinical electro-oculography values. AB - BACKGROUND: The aim of the meta-analysis was to derive a range of mean normal clinical electrooculogram (EOG) values from a systematic review of published EOG studies that followed the guidelines of the ISCEV standard for clinical electro oculography. METHODS: A systematic literature review was performed using four relevant databases limited to peer-reviewed articles in English between 1967 and February 2017. Studies reporting clinical EOG or FO normal values were included when the report used a standard 30 degrees horizontal saccade, a retinal luminance of between 100 and 250 cd m-2, and had > 10 subjects in their normative values. The search identified 1145 articles after duplicates were removed with subsequent screening of the abstracts excluding a further 1098, resulting in 47 full-text articles that were then assessed by the author (PC) with a final nine articles meeting the inclusion criteria. An overall effect estimate using inverse variance-weighted meta-analysis was performed to estimate the mean values for the light peak/dark trough ratio (LP:DT ratio) (dilated and undilated), the time to the LP, the amplitude of the LP, dark trough (DT) and the fast oscillation (FO) peak-to-trough ratio from the included studies. RESULTS: The mean dilated LP:DT ratio was 2.35 (95% CI 2.28-2.42); undilated LP:DT ratio was 2.37 (95% CI 2.28 2.45); LP amplitude was 835 (95% CI 631-1039) uV and the mean time to the LP being 8.2 (95% CI 7.7-8.7) min. The mean DT amplitude was 358 (95% CI 292-424) uV, and the mean FO peak-to-trough ratio was 1.13 (95% CI 1.11-1.16). The results of the LP/DT ratio are drawn from studies with a mean +/- standard deviation (SD) age of 34.08 +/- 12.93 years for dilated and 33.65 +/- 12.28 years for undilated LP/DT ratios. CONCLUSIONS: The meta-analysis of EOG studies has generated a reference range of normal mean values for clinicians to refer to when using the ISCEV clinical EOG. It provides a potential method to generate similar data sets from published normal values in related visual electrophysiology tests. PMID- 29019003 TI - Role of Dynein Axonemal Heavy Chain 6 Gene Expression as a Possible Biomarker for Huntington's Disease: a Translational Study. AB - Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder characterized by motor dysfunction, cognitive deficits, and psychiatric symptoms. The primary genetic cause is an expansion of cytosine adenine guanine (CAG) nucleotides of the huntingtin gene, which codes an important protein involved with neuronal signaling. The severity of HD correlates with the number of CAG repeats and individuals with longer expansions have an earlier onset and more severe symptoms. A microarray study conducted by our research group showed alteration in DNAH6 gene (encoding dynein axonemal heavy chain 6). DNAH6 belongs to dynein family, whose members are constituents of the microtubule-associated motor proteins and is downregulated in the striatum of a HD mouse model (knockin HdhQ111/Q111). In this manner, our goal was to confirm these downregulations in the mouse model and verify if the same alteration in the axonemal DNAH6 gene expression is observed in blood samples of HD patients. Blood samples were collected from 17 patients with clinical diagnosis of HD and 12 healthy individuals and RNA extracted for qPCR analysis. Microarray data were confirmed by qPCR in knockin HdhQ111/Q111, and DNAH6 was severely decreased in those mice, as compared to control mice (HdhQ20/Q20). Notably, decreased expression of DNAH6 gene was also observed in HD patients when compared to control group and negatively correlates with the CAG expansion. Although further studies are necessary to underlie the molecular mechanisms of dynein-htt interaction, this data highlights DNAH6 as a potential new blood marker for HD. PMID- 29019004 TI - Multiple sclerosis spatial cluster in Tuscany. AB - Tuscany (Central Italy) is a high-risk area for multiple sclerosis (MS) with a prevalence of 188 cases per 100,000 at 2011, and it is characterized by a heterogeneous geographic distribution of this disease. Our objective was to update prevalence at 2013 and to evaluate the presence of spatial clusters in Tuscany. The MS prevalence was evaluated on 31 December 2013 using a validated case-finding algorithm, based on administrative data. To identify spatial clusters, we calculated standardized morbidity ratios (SMRs) for each Tuscan administrative municipality. In addition to the classical approach, we applied the hierarchical Bayesian model to overcome random variability due to the presence of small number of cases per municipality. We identified 7330 MS patients (2251 males and 5079 females) with an overall prevalence of 195.4/100,000. The SMR for each Tuscan municipality ranged from 0 to 271.4, but this approach produced an extremely non-homogeneous map. On the contrary, the Bayesian map was much smoother than the classical one. The posterior probability (PP) map showed prevalence clusters in some areas in the province of Massa Carrara, Pistoia, and Arezzo, and in the municipalities of Siena, Florence, and Barberino Val d'Elsa. Our prevalence data confirmed that Tuscany is a high-risk area, and we observed an increasing trend during the time. Using the Bayesian method, we estimated area-specific prevalence in each municipality reducing the random variation and the effect of extreme prevalence values in small areas that affected the classical approach. PMID- 29019005 TI - When theory meets experiment: the PD-1 challenge. AB - Applying atomistic computational modeling to drug discovery has proven to be a hugely successful approach, allowing drug-receptor interactions to be predicted and drugs to be optimized for potency, selectivity, and safety. However, when it comes to predicting protein-protein interactions and to rationally designing regulators of these interactions, computational tools often fail. Here, we report one of the rare instances where state-of-the-art computer simulations, guided by experiment, were able to correctly predict one of the most sophisticated protein protein interactions. We revisit our previous discovery of the complex of human PD-1 with the ligand PD-L1 and compare our earlier findings with the recently published crystal structure of the same complex. Side-by-side comparison of the model of the complex with its crystal structure reveals outstanding agreement and suggests that our protein-protein prediction workflow could be applied to similar problems. PMID- 29019006 TI - Ventilation inhomogeneity in obstructive lung diseases measured by electrical impedance tomography: a simulation study. AB - Electrical impedance tomography (EIT) has mostly been used in the Intensive Care Unit (ICU) to monitor ventilation distribution but is also promising for the diagnosis in spontaneously breathing patients with obstructive lung diseases. Beside tomographic images, several numerical measures have been proposed to quantitatively assess the lung state. In this study two common measures, the 'Global Inhomogeneity Index' and the 'Coefficient of Variation' were compared regarding their capability to reflect the severity of lung obstruction. A three dimensional simulation model was used to simulate obstructed lungs, whereby images were reconstructed on a two-dimensional domain. Simulations revealed that minor obstructions are not adequately recognized in the reconstructed images and that obstruction above and below the electrode plane may result in misleading values of inhomogeneity measures. EIT measurements on several electrode planes are necessary to apply these measures in patients with obstructive lung diseases in a promising manner. PMID- 29019008 TI - Retained Foreign Body After Adjustable Gastric Band Removal: a Case Series. AB - Laparoscopic adjustable gastric band (LAGB) has weight loss and associated obesity-related disease benefits. Well-recognised LABG complications lead to a higher re-operation rate when compared to other obesity surgeries and therefore potential for retained foreign body. By way of a case series, we have evaluated retained foreign body after the intended complete removal of a gastric band. Analysis focused on circumstances and similarities leading to retained foreign body. From the series, the most commonly retained band component is band tubing. Difficult surgery or surgery associated with intra-operative complications may lead to increased chances of retained gastric band. Strategies to prevent this complication should be implemented. Specifically, removal technique, equipment familiarisation and post removal inspection all play a role. PMID- 29019009 TI - Electroinduced Extraction of Human Ferritin Heavy Chain Expressed in Hansenula polymorpha. AB - A protocol for the efficient and selective recovery of human ferritin heavy chain (FTH1) expressed intracellularly in Hansenula polymorpha was developed. It was based on electropermeabilisation and an increase in the cell wall porosity by pulsed electric field (PEF) treatment and subsequent incubation with a low concentration of a lytic enzyme. Irreversible plasma membrane permeabilisation was induced by applying rectangular electric pulses in the flow mode. The electrical treatment itself did not cause the release of the recombinant protein but induced the sensitisation of H. polymorpha cells to the lytic enzyme. Consequently, the subsequent incubation of the permeabilised cells with lyticase led to the recovery of approximately 90% of the recombinant protein, with a purification factor of 1.8. A similar efficiency was obtained by using the industrial lytic enzyme Glucanex. The released FTH1 appears in the form of an oligomer with a molecular mass of approximately 480 kDa, which is able to bind iron. The possibility for scaling the proposed protocol is discussed. PMID- 29019007 TI - Evaluation on exposures to particulate matter at a junior secondary school: a comprehensive study on health risks and effective inflammatory responses in Northwestern China. AB - Air pollutant measurement and respiratory inflammatory tests were conducted at a junior secondary school in Xi'an, Northwestern China. Hazardous substances including particulate matters (PMs), black carbon (BC) and particle-bounded polycyclic aromatic hydrocarbons (PAHs) were quantified both indoors and outdoors of the school. Source characterization with organic tracers and particle-size distribution demonstrated that the school's air was mostly polluted by combustion emissions from the surrounding environment. The evaluation of health assessment related to air quality was conducted by two methods, including potential risk estimation of air pollutants and direct respiratory inflammatory test. The incremental lifetime cancer risks associated with PAHs were estimated and were 1.62 * 10-6 and 2.34 * 10-6, respectively, for indoor and outdoor fine PMs. Both the values exceeded the threshold value of 1 * 10-6, demonstrating that the carcinogenic PAHs are a health threat to the students. Respiratory inflammatory responses of 50 students who studied in the sample classroom were examined with a fractional exhaled nitric oxide (FeNO) test, with the aid of health questionnaires. The average FeNO concentration was 17.4 +/- 8.5 ppb, which was slightly lower than the recommended level of 20 ppb established by the American Thoracic Society for children. However, a wide distribution and 6% of the values were > 35 ppb, suggesting that the potentials were still high for eosinophilic inflammation and responsiveness to corticosteroids. A preliminary interpretation of the relationship between air toxins and respiratory inflammatory response demonstrated the high exposure cancer risks and inflammatory responses of the students to PMs in the city. PMID- 29019010 TI - Effect of the Presence of Surfactants and Immobilization Conditions on Catalysts' Properties of Rhizomucor miehei Lipase onto Chitosan. AB - Lipase from Rhizomucor miehei (RML) was immobilized onto chitosan support in the presence of some surfactants added at low levels using two different strategies. In the first approach, the enzyme was immobilized in the presence of surfactants on chitosan supports previously functionalized with glutaraldehyde. In the second one, after prior enzyme adsorption on chitosan beads in the presence of surfactants, the complex chitosan beads-enzyme was then cross-linked with glutaraldehyde. The effects of surfactant concentrations on the activities of free and immobilized RML were evaluated. Hexadecyltrimethylammonium bromide (CTAB) promoted an inhibition of enzyme activity while the nonionic surfactant Triton X-100 caused a slight increase in the catalytic activity of the free enzyme and the derivatives produced in both methods of immobilization. The best derivatives were achieved when the lipase was firstly adsorbed on chitosan beads at 4 degrees C for 1 h, 220 rpm followed by cross-link the complex chitosan beads-enzyme with glutaraldehyde 0.6% v.v-1 at pH 7. The derivatives obtained under these conditions showed high catalytic activity and excellent thermal stability at 60 degrees and 37 degrees C. The best derivative was also evaluated in the synthesis of two flavor esters namely methyl and ethyl butyrate. At non-optimized conditions, the maximum conversion yield for methyl butyrate was 89%, and for ethyl butyrate, the esterification yield was 92%. The results for both esterifications were similar to those obtained when the commercial enzyme Lipozyme(r) and free enzyme were used in the same reaction conditions and higher than the one achieved in the absence of the selected surfactant. PMID- 29019011 TI - A systematic review and meta-analysis of mechanical vs biological composite aortic root replacement, early and 1-year results. AB - OBJECTIVE: Composite aortic root replacement is a standard procedure for various aortic root pathologies. This systematic review was set to identify the postoperative outcomes for composite mechanical root replacement (mCRR) compared to composite biological root replacement (bCRR). METHODS: We systematically reviewed four major databases for all papers assessing outcomes in composite root replacement. Articles selected were chosen by two reviewers. Amongst our inclusion and exclusion criteria, all pediatric populations were excluded as were studies with a cohort less than 50 patients. RESULTS: We identified seven studies that conformed to our inclusion criteria and incorporated 2240 patients. In hospital mortality was higher but non-significant in the mechanical group (6.1 vs 4.2% respectively). There was no significant difference demonstrated in the risk of in-hospital stroke, late stroke and re-operation in either groups. Additionally, there was no significant difference in: endocarditis, 1-year mortality, 5-year mortality, mean cardiopulmonary or aortic cross-clamp time. CONCLUSIONS: Composite mechanical root offers no superiority to composite biological root. There is a significant increase in the perioperative bleeding amongst composite mechanical root cohort. There is a need for further randomized control trail to assess the efficacy of either methods. PMID- 29019012 TI - Process Evaluation of the BOOST-ATM Transition Planning Program for Adolescents on the Autism Spectrum: A Strengths-Based Approach. AB - A process evaluation was conducted to determine the effectiveness, usability, and barriers and facilitators related to the Better OutcOmes & Successful Transitions for Autism (BOOST-ATM), an online transition planning program. Adolescents on the autism spectrum (n = 33) and their parents (n = 39) provided feedback via an online questionnaire. Of these, 13 participants were interviewed to gain in-depth information about their experiences. Data were analyzed using descriptive statistics and thematic analysis. Four themes were identified: (i) taking action to overcome inertia, (ii) new insights that led to clear plans for the future, (iii) adolescent empowerment through strengths focus, and (iv) having a champion to guide the way. The process evaluation revealed why BOOST-ATM was beneficial to some participants more than others. Trial registration #ACTRN12615000119594. PMID- 29019013 TI - Larkinella terrae sp. nov., isolated from soil on Jeju Island, South Korea. AB - A Gram-stain negative, non-motile, rod-shaped, aerobic bacterium, designated 15J8 8T, was isolated from a soil sample collected on Jeju Island, South Korea, and characterized taxonomically using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain 15J8-8T belongs to the family Cytophagaceae and is related to Larkinella bovis M2TB15T (95.0%), 'Larkinella harenae' 15J9-9 (94.5%), Larkinella arboricola Z0532T (93.2%), and Larkinella insperata LMG 22510T (93.0%). The DNA G+C content of strain 15J8-8T was 50.5 mol%. The detection of phosphatidylethanolamine and two unidentified polar lipids as major polar lipids; menaquinone-7 as the predominant quinone; and C16:1 omega5c, C16:0 N alcohol, and iso-C15:0 as the major fatty acids also supported the affiliation of the isolate to the genus Larkinella. Based on its phenotypic properties and phylogenetic distinctiveness, strain 15J8-8T should be classified in the genus Larkinella as representative of a novel species, for which the name Larkinella terrae sp. nov. is proposed. The type strain is 15J8-8T (= KCTC 52001T = JCM 31990T). PMID- 29019014 TI - Incontinence in autism spectrum disorder: a systematic review. AB - Autism spectrum disorders (ASD) are defined by persistent deficits in reciprocal social interaction, communication, and language, as well as stereotyped and repetitive behavior. Functional incontinence, as well as ASD are common disorders in childhood. The aim of this systematic review was to give an overview of the co occurrence of nocturnal enuresis (NE), daytime urinary incontinence (DUI), and fecal incontinence (FI) in ASD, and vice versa, of ASD in children with incontinence. A systematic literature search of the terms "incontinence", "enuresis", and "encopresis" in combination with "autism" or "Asperger" in four databases (Scopus, PubMed, PsycInfo and Web of science) was conducted. All studies that examined incontinence frequencies in samples with ASD, and studies that measured frequencies of ASD diagnoses or symptoms in samples with incontinence were included. Risk of bias and limitations of each study were described. After eligibility assessment, 33 publications were included in the review. The published literature implies a higher prevalence of incontinence in children with ASD compared to typically developing children. Limitations and biases as inappropriate diagnostic criteria for ASD and incontinence, selected samples, or lack of control groups are reported. Associations of incontinence in ASD with psychopathological symptoms were found. Vice versa, ASD symptoms are found in incontinent children, but no study included a non-ASD control sample. Incontinence symptoms are also reported as an adverse effect of medication in ASD. Due to methodological problems and definitional discrepancies in some publications, results have to be interpreted cautiously. Research in ASD and incontinence is scarce. More systematic research including state-of-the-art assessments is needed. PMID- 29019015 TI - Conformations of a charged vesicle interacting with an oppositely charged particle. AB - Endocytotic and exocytotic processes are usually studied using particle-vesicle systems in theory, but most of them are electroneutral. Nevertheless, charged particle-vesicle systems are much closer to real biological systems. Therefore, wrapping behaviors of a negatively charged vesicle wrapping a positively charged particle are systematically investigated by a series of 2D dynamical simulations in this article. The competition between the elastic bending energy and the electrostatic energy dictates the vesicle configuration and charge distribution. It is found that only for intermediate charge concentrations and small particle sizes a vesicle can completely engulf the particle. When the charge density is high, the interaction between vesicle and particle is unexpectedly weakened by both the hardening effect of the charged membrane and the effective transportation-frozen effect of the charged components. When the particle is strongly charged, multi-layer folding conformations are observed. These studies may provide important insights into mechanism of endocytotic and exocytotic processes in biological systems. PMID- 29019017 TI - Leptospirosis-associated catastrophic respiratory failure supported by extracorporeal membrane oxygenation. AB - A previously healthy, 39-year-old obese farmer, arrived hypotensive and tachycardic, with fever, myalgia, headache, abdominal pain, diarrhea, and progressive dyspnea. Ten days before symptoms onset, he was in direct contact with mice and working in a contaminated drain. Patient laboratory showed acute kidney injury and thrombocytopenia. Chest X-ray exhibited bilateral diffuse interstitial infiltrates. First-line empirical antibiotics were started and influenza discarded. Patient evolved with severe respiratory failure, associated with hemoptysis, and rapidly severe hemodynamic compromise. Despite neuromuscular blockade and prone positioning, respiratory failure increased. Accordingly, veno venous ECMO was initiated, with bilateral femoral extraction and jugular return. After ECMO connection, there was no significant improvement in oxygenation, and low pre-membrane saturations and low arterial PaO2 of the membrane showed that we were out of the limits of the rated flow. Thus, a second membrane oxygenator was installed in parallel. Afterward, oxygenation improved, with subsequent perfusion enhancement. Regarding etiology, due to high suspicion index, Leptospira serology was performed, coming back positive and meropenem was maintained. The patient ultimately recovered and experience excellent outcome. The clinical relevance of the case is the scared evidence of leptospirosis-associated severe respiratory failure treated with ECMO. This experience emphasizes the importance of an optimal support, which requires enough membrane surface and flow for an obese, highly hyperdynamic patient, during this reversible disease. A high index of suspicion is needed for an adequate diagnosis of leptospirosis to implement the correct treatment, particularly in the association of respiratory failure, pulmonary hemorrhage, and an epidemiological-related context. PMID- 29019016 TI - Repurposing Zidovudine in combination with Tigecycline for treating carbapenem resistant Enterobacteriaceae infections. AB - The global emergence of carbapenem-resistant Enterobacteriaceae (CRE) presents a significant clinical concern, prompting the WHO to prioritize CRE as a top priority pathogen in their 2017 global antibiotic-resistant bacteria priority list. Due to the fast-depleting antibiotic arsenal, clinicians are now resorting to using once-abandoned, highly toxic antibiotics such as the polymyxins and aminoglycosides, creating an urgent need for new antibiotics. Drug repurposing, the application of an approved drug for a new therapeutic indication, is deemed a plausible solution to this problem. A total of 1,163 FDA-approved drugs were screened for activity against a clinical carbapenem- and multidrug-resistant E. coli isolate using a single-point 10 MUM assay. Hit compounds were then assessed for their suitability for repurposing. The lead candidate was then tested against a panel of clinical CREs, a bactericidal/static determination assay, a time-kill assay and a checkerboard assay to evaluate its suitability for use in combination with Tigecycline against CRE infections. Three drugs were identified. The lead candidate was determined to be Zidovudine (azidothymidine/AZT), an oral anti viral drug used for HIV treatment. Zidovudine was shown to be the most promising candidate for use in combination with Tigecycline to treat systemic CRE infections. Further experiments should involve the use of animal infection models. PMID- 29019018 TI - Long-term anabolic steroids in male bodybuilders induce cardiovascular structural and autonomic abnormalities. AB - OBJECTIVE: The aims of this study were to examine the hypothesis that users of anabolic androgenic steroids (AAS) would have cardiac autonomic disorders and that there is a correlation between sympathetic modulation, high blood pressure (BP) and alterations to cardiac dimensions. METHODS: Forty-five male subjects were enrolled in the study. They were categorized into three groups comprising bodybuilders actively using AAS (AAS users; n = 15), bodybuilders who had never used AAS (nonusers; n = 15) and age-paired healthy sedentary controls (n = 15). Hemodynamic parameters, linear and nonlinear analyses of heart rate variability and electrocardiography and echocardiography analyses were performed at rest. RESULTS: Bodybuilders in the AAS group had a higher mean BP than those in the ASS nonuser group (p < 0.05) and the sedentary controls (p < 0.001). Cardiac sympathetic modulation was higher in AAS users than in AAS nonusers (p < 0.05) and the sedentary controls (p < 0.001), and parasympathetic modulation was lower in AAS users than in nonusers and the sedentary controls (p < 0.05). Shannon entropy was lower in AAS users than in the sedentary (p < 0.05) controls, and the corrected QT interval and QT dispersion were higher in AAS users than in the sedentary controls (p < 0.05). The interventricular septal thickness, left ventricle posterior wall thickness and relative diastolic wall thickness were higher in AAS users than in AAS nonusers and the sedentary controls (p < 0.001). AAS users showed a positive correlation between increased sympathetic modulation and high BP (r = 0.48, p < 0.005), as well as sympathetic modulation and cardiac hypertrophy (r = 0.66, p < 0.001). CONCLUSION: There was a marked cardiac autonomic alteration in AAS users, with a shift toward sympathetic modulation predominance and vagal attenuation. The high BP observed in our group of bodybuilders using AAS was associated with increased sympathetic modulation, and this increased sympathetic modulation was associated with structural alterations in the heart. This association may constitute an important mechanism linking AAS abuse to increased cardiovascular risk. PMID- 29019019 TI - Healthy Grandparenthood: How Long Is It, and How Has It Changed? AB - Healthy grandparenthood represents the period of overlap during which grandparents and grandchildren can build relationships, and grandparents can make intergenerational transfers to younger kin. The health of grandparents has important implications for upward and downward intergenerational transfers within kinship networks in aging societies. Although the length of grandparenthood is determined by fertility and mortality patterns, the amount of time spent as a healthy grandparent is also affected by morbidity. In this study, we estimate the length of healthy grandparenthood for the first time. Using U.S. and Canadian data, we examine changes in the length of healthy grandparenthood during years when grandparenthood was postponed, health improved, and mortality declined. We also examine variation in healthy grandparenthood by education and race/ethnicity within the United States. Our findings show that the period of healthy grandparenthood is becoming longer because of improvements in health and mortality, which more than offset delays in grandparenthood. Important variation exists within the United States by race/ethnicity and education, which has important implications for family relationships and transfers. PMID- 29019022 TI - Distribution of lacosamide in the rat brain assessed by in vitro slice technique. AB - Lacosamide is a newer anticonvulsant and is the only one that enhances the slow inactivation of voltage gated sodium channels. It is also claimed to have disease modifying potential, but its pharmacokinetic properties have been much less discussed in the literature. In rats, lacosamide shows restricted distribution to tissues, and the brain-to-plasma partition coefficient (Kp) is only 0.553. In this study, the brain disposition of lacosamide was evaluated in rat brains, and its neuropharmacokinetic parameters (i.e., protein binding and intracellular accumulation) were assessed using in vitro methods. Brain slice experiments and brain homogenate binding studies were performed for several drugs acting on the central nervous system, and drugs were assayed by using a liquid chromatography mass spectrometry system. By applying a combined approach, it was found that (1) the unbound volume of distribution in the brain for lacosamide (Vu,brain = 1.37) was lower than that of other classical anticonvulsants; (2) the unbound fraction of lacosamide in the brain (0.899) was slightly lower than its unbound fraction in plasma (0.96); (3) the unbound intracellular-to-extracellular concentration ratio of lacosamide was 1.233, meaning that lacosamide was accumulated in the intracellular space because of its physicochemical properties and zwitterionic structure; and (4) the unbound brain-to-plasma concentration ratio of lacosamide was lower than the total brain-to-plasma concentration ratio (Kp,uu,brain = 0.42 vs. Kp = 0.553). In conclusion, the limited brain distribution of lacosamide is not related to its nonspecific protein-binding capacity; rather, an active transport mechanism across the blood-brain barrier may be involved, which reduces the anticonvulsant and/or antiepileptogenic actions of this drug. PMID- 29019021 TI - Analysis of histological findings obtained combining US/mp-MRI fusion-guided biopsies with systematic US biopsies: mp-MRI role in prostate cancer detection and false negative. AB - AIMS AND OBJECTIVES: To evaluate the diagnostic accuracy of mp-MRI correlating US/mp-MRI fusion-guided biopsy with systematic random US-guided biopsy in prostate cancer diagnosis. MATERIALS AND METHODS: 137 suspected prostatic abnormalities were identified on mp-MRI (1.5T) in 96 patients and classified according to PI-RADS score v2. All target lesions underwent US/mp-MRI fusion biopsy and prostatic sampling was completed by US-guided systematic random 12 core biopsies. Histological analysis and Gleason score were established for all the samples, both target lesions defined by mp-MRI, and random biopsies. PI-RADS score was correlated with the histological results, divided in three groups (benign tissue, atypia and carcinoma) and with Gleason groups, divided in four categories considering the new Grading system of the ISUP 2014, using t test. Multivariate analysis was used to correlate PI-RADS and Gleason categories to PSA level and abnormalities axial diameter. When the random core biopsies showed carcinoma (mp-MRI false-negatives), PSA value and lesions Gleason median value were compared with those of carcinomas identified by mp-MRI (true-positives), using t test. RESULTS: There was statistically significant difference between PI RADS score in carcinoma, atypia and benign lesions groups (4.41, 3.61 and 3.24, respectively) and between PI-RADS score in Gleason < 7 group and Gleason > 7 group (4.14 and 4.79, respectively). mp-MRI performance was more accurate for lesions > 15 mm and in patients with PSA > 6 ng/ml. In systematic sampling, 130 (11.25%) mp-MRI false-negative were identified. There was no statistic difference in Gleason median value (7.0 vs 7.06) between this group and the mp-MRI true positives, but a significant lower PSA median value was demonstrated (7.08 vs 7.53 ng/ml). CONCLUSION: mp-MRI remains the imaging modality of choice to identify PCa lesions. Integrating US-guided random sampling with US/mp-MRI fusion target lesions sampling, 3.49% of false-negative were identified. PMID- 29019023 TI - Challenges Associated with Estimating Utility in Wet Age-Related Macular Degeneration: A Novel Regression Analysis to Capture the Bilateral Nature of the Disease. AB - INTRODUCTION: The estimation of utility values for the economic evaluation of therapies for wet age-related macular degeneration (AMD) is a particular challenge. Previous economic models in wet AMD have been criticized for failing to capture the bilateral nature of wet AMD by modelling visual acuity (VA) and utility values associated with the better-seeing eye only. METHODS: Here we present a de novo regression analysis using generalized estimating equations (GEE) applied to a previous dataset of time trade-off (TTO)-derived utility values from a sample of the UK population that wore contact lenses to simulate visual deterioration in wet AMD. This analysis allows utility values to be estimated as a function of VA in both the better-seeing eye (BSE) and worse seeing eye (WSE). RESULTS: VAs in both the BSE and WSE were found to be statistically significant (p < 0.05) when regressed separately. When included without an interaction term, only the coefficient for VA in the BSE was significant (p = 0.04), but when an interaction term between VA in the BSE and WSE was included, only the constant term (mean TTO utility value) was significant, potentially a result of the collinearity between the VA of the two eyes. The lack of both formal model fit statistics from the GEE approach and theoretical knowledge to support the superiority of one model over another make it difficult to select the best model. CONCLUSION: Limitations of this analysis arise from the potential influence of collinearity between the VA of both eyes, and the use of contact lenses to reflect VA states to obtain the original dataset. Whilst further research is required to elicit more accurate utility values for wet AMD, this novel regression analysis provides a possible source of utility values to allow future economic models to capture the quality of life impact of changes in VA in both eyes. FUNDING: Novartis Pharmaceuticals UK Limited. PMID- 29019024 TI - Naphthalene glycosides in the Thai medicinal plant Diospyros mollis. AB - This study evaluated methanol extracts from the leaves and branches of the Thai medicinal plant Diospyros mollis (Ebenaceae). Seven triterpenes and 22 aromatic compounds, including five new compounds, were isolated, and their structures were determined. The new compounds had the following structures: diospyrol glycoside (makluoside A, 1), 8,8'-di-O-6-beta-D-apiofuranosyl-beta-D-glucopyranosyl-6,6' dimethyl-2,3'-binaphthalene-1-ol-1',4'- dione (makluoside B, 2), and 3-methyl-1,8 naphthalenediol glycosides (makluosides C-E, 3-5). Makluoside B is the first example of a naphthoquinone glycoside that has both a 3-methyl-1,8 naphthalenediol unit and a 5-hydroxy-7-methyl-1,4-naphthoquinone unit. The hyaluronidase inhibitory activity of the isolates was evaluated, revealing that one of the triterpene derivatives possessed moderate inhibitory activity. PMID- 29019020 TI - Pharmacodynamic and Pharmacokinetic Markers For Anti-angiogenic Cancer Therapy: Implications for Dosing and Selection of Patients. AB - Angiogenesis is integral to tumour growth and invasion, and is a key target for cancer therapeutics. However, for many of the licensed indications, only a modest clinical benefit has been observed for both monoclonal antibody and small molecule tyrosine kinase inhibitor anti-angiogenic therapy. Pre-clinical and clinical studies have attempted to evaluate circulating, imaging, genomic, pharmacokinetic, and pharmacodynamic markers that may aid both the selection of patients for treatment and define dosing. Correct dosing is likely to be critical in the context of vascular normalization to allow better delivery of concomitant anti-cancer therapy and novel imaging techniques hold much promise in the early evaluation of pharmacodynamic response to improve efficacy. PMID- 29019026 TI - Echocardiographic chamber quantification in a healthy Dutch population. AB - AIM: For accurate interpretation of echocardiographic measurements normative data are required, which are provided by guidelines. For this article, the hypothesis was that these cannot be extrapolated to the Dutch population, since in Dutch clinical practice often higher values are found, which may not be pathological but physiological. Therefore this study aimed to 1) obtain and propose normative values for cardiac chamber quantification in a healthy Dutch population and 2) determine influences of baseline characteristics on these measurements. METHODS: Prospectively recruited healthy subjects, aged 20-72 years (at least 28 subjects per age decade, equally distributed for gender) underwent physical examination and 2D and 3D echocardiography. Both ventricles and atria were assessed and volumes were calculated. RESULTS: 147 subjects were included (age 44 +/- 14 years, 50% female). Overall, feasibility was good for both linear and volumetric measurements. Linear and volumetric parameters were consistently higher than current guidelines recommend, while functional parameters were in line with the guidelines. This was more so in the older population. 3D volumes were higher than 2D volumes. Gender dependency was seen in all body surface area (BSA) corrected volumes and with increasing age, ejection fractions decreased. CONCLUSION: This study provides 2D and 3D echocardiographic reference ranges for both ventricles and atria derived from a healthy Dutch population. BSA indexed volumes are gender dependent, age did not influence ventricular volumes and a rise in blood pressure was independently associated with increased right ventricular volumes. The higher volumes found may be indicative for the Dutch population being the tallest in the world. PMID- 29019025 TI - An evidence-based medicine audit of the ophthalmic emergency services unit of King Abdulaziz University Hospital (KAUH). AB - PURPOSE: To improve the interventions provided for patients presenting with acute ophthalmic conditions to the ophthalmic emergency unit through applying the best available evidences from quality literature for managing such conditions. METHODS: A retrospective cohort study at a tertiary eye care university hospital in Riyadh, Saudi Arabia, involving a two-phase audit of diagnosis-intervention was conducted. The first phase was done retrospectively for the duration from April 1 to May 30, 2014, after disseminating the results of the first phase to King Abdulaziz University Hospital ophthalmology department staff, and the second phase was done retrospectively for the duration from November 1 to December 30, 2015. The validity of outcomes was assessed through a literature search using Medline and the Cochrane Database of Systematic Reviews. The participants were masked on the study objectives to avoid Hawthorne's phenomenon (prescribing bias). RESULTS: In the first part of the audit, 73.2% out of 355 interventions were found to be evidence based. There was notable improvement of 80.9% in the number of evidence-based interventions in the second part of the audit. This improvement was statistically significant (p = 0.017). CONCLUSION: Evidence-based medicine audit can be a helpful tool to assess the performance and can lead to quality improve of the provided care by reducing the number of medical errors and refining medical decisions and interventions. PMID- 29019027 TI - Acculturation, Acculturative Stress, and Depressive Symptoms in International Migrants: A Study with Vietnamese Women in South Korea. AB - Globally, there have been increasing numbers of migrant women; these women are at an increased risk for depressive symptoms. The purpose of this study was to examine the associations among acculturation, acculturative stress and depressive symptoms in Vietnamese women who migrated to South Korea through marriages. We hypothesized that acculturative stress would serve as a mediator in the relationship between acculturation and depressive symptoms. Our findings from surveys with 217 Vietnamese immigrant women showed that the indirect effect of acculturation on depressive symptoms, mediated through acculturative stress [- .15 (.04)], was significant (bias corrected 95% confidence interval for the indirect effect = - .25, - .08). Low levels of acculturation increased acculturative stress, which in turn led to the elevated symptoms of depression. Our findings not only illuminate the adaptation processes of international, female migrants but also suggest avenues to protect and promote their mental well being. PMID- 29019028 TI - Application of a full model-based iterative reconstruction (MBIR) in 80 kVp ultra low-dose paranasal sinus CT imaging of pediatric patients. AB - OBJECTIVE: To evaluate the clinical application of a full model-based iterative reconstruction (MBIR) algorithm in the ultra-low-dose paranasal sinus CT imaging of children. MATERIALS AND METHODS: In the first phase, 16 low-dose CT dacryocystography (DCG) (80 kV/64 mAs) scans were reconstructed with MBIR and filtered back-projection (FBP) to demonstrate noise reduction capability of MBIR. MBIR images were also compared with the images of 21 standard-dose paranasal sinus patients reconstructed with adaptive statistical iterative reconstruction (ASIR) algorithm. In the second phase, 14 pediatric tumors patients (images with ASIR in the initial scan) who came for follow-up paranasal sinus CT scan were prospectively enrolled with reduced radiation and MBIR algorithm. In both study phases, image noise and the contrast noise ratio (CNR) of sphenoid was measured; and subjective image quality was evaluated. CTDIvol and DLP were recorded, and effective dose calculated. RESULTS: The CTDIvol value for the DCG group was 63.9% lower than the standard-dose sinus group (1.09 +/- 0.01 mGy vs. 3.02 +/- 0.35 mGy). Compared with the ASIR reconstruction in the standard-dose sinus patient group, images with MBIR in the ultra-low-dose DCG group had 39.9% lower noise (9.5 +/- 0.8HU vs. 15.8 +/- 3.3HU) and 63.6% higher CNR (14.4 +/- 4.7 vs. 8.8 +/- 2.2), with similar subjective image quality score. For the tumor patients, 65.5% dose reduction was achieved. Subjective quality scores were similar between the initial and follow-up scans. Objective noise was significantly lower for the follow-up group. CONCLUSION: MBIR provided equal or better image quality with significantly reduced radiation dose in paranasal sinus CT imaging of pediatric patients compared with standard-dose CT with ASIR algorithm. PMID- 29019030 TI - Cloning and upscale production of monoamine oxidase N (MAO-N D5) by Pichia pastoris. AB - OBJECTIVE: To clone monoamine oxidase N, that catalyses the selective oxidative deamination or deracemisation of amines into imines, in Pichia pastoris and prove the importance of choosing the proper expression system for its recombinant production. RESULTS: Monoamine oxidase, originating from Aspergillus niger and subjected to directed evolution (MAO-N D5), was cloned and expressed in Pichia pastoris CBS7435 MutS strain for the first time. Various transformants were screened at microscale level. The production of the clone expressing the most active enzyme was scaled-up to a 1.5 l fermenter and preparation of MAO-N D5 as a crude enzyme extract was optimised. The obstacles in the production of the enzyme in both expression systems, Escherichia coli and P. pastoris, are discussed and demonstrated. CONCLUSIONS: There was an improvement in specific productivity, which was 83 times higher in P. pastoris, clearly proving the importance of choosing the right expression host system for the specific enzymes. PMID- 29019029 TI - Hippocampal Acetylation may Improve Prenatal-Stress-Induced Depression-Like Behavior of Male Offspring Rats Through Regulating AMPARs Expression. AB - This study is to determine the role and mechanism of hippocampal acetylation in prenatal stress (PS) induced depression-like behavior of male offspring rats. PS induced depression rat model was established. Sucrose preference and forced swim test were used to observe the behavior changes of male offspring rats. Hippocampal acetylation was induced by Trichostatin A injection. Quantitative real-time PCR and Western blot were used to determine the changes of AMPARs in acetylated hippocampus. The behavioral tests proved that AMPA was involved in the PS-induced depression-like behavior in offspring rats. Hippocampal acetylation significantly increased the preference to sucrose of PS-induced offspring rats and reduced the immobile time in forced swimming test, suggesting that acetylation could improve PS-induced depression-like behaviors. In addition, PS inhibited the expression levels of GluA1-3 subunits of AMPARs in the offspring hippocampus, while Hippocampal acetylation could reverse this effect by increasing GluA1-3 expression. PS-induced reduction of GluA1-3 subunits of AMPARs may be an important potential mechanism of offspring depression. Hippocampal acetylation may improve PS-induced offspring depression-like behavior through the enhanced expression of AMPARs (GluA1-3 subunits). PMID- 29019031 TI - Effects of different soil remediation methods on inhibition of lead absorption and growth and quality of Dianthus superbus L. AB - Heavy metal pollution in soil poses a serious threat to the growth of plants used in traditional Chinese medicine. Therefore, a pot experiment was conducted to study the effects of various soil remediation methods on the performance of Herba Dianthi (Dianthus superbus L.) grown on Pb-contaminated soil. The results show that inoculation of Herba Dianthi with arbuscular mycorrhizal fungi (AMF) led to a significant reduction in Pb uptake (P< 0.05), and increased root development and root-to-shoot ratio compared to untreated control plants, along with the highest content of active components. When planting with Trifolium repens, the reduction effect of Pb absorption was insignificant. Herba Dianthi showed improved growth and active ingredients, and the lowest Pb content, with AMF inoculation. The addition of EDTA decreased the growth of Herba Dianthi, but promoted the absorption of Pb. The inhibition of tumor cells was highest in E2. In conclusion, inoculation with AMF can ensure that plant lead content meets testing standards, helping to improve the quality of medicinal herbs. PMID- 29019033 TI - Polyethyleneimine and Chitosan Polymer-Based Mucoadhesive Liquid Crystalline Systems Intended for Buccal Drug Delivery. AB - The buccal mucosa is accessible, shows rapid repair, has an excellent blood supply, and shows the absence of the first-pass effect, which makes it a very attractive drug delivery route. However, this route has limitations, mainly due to the continuous secretion of saliva (0.5 to 2 L/day), which may lead to dilution, possible ingestion, and unintentional removal of the active drug. Nanotechnology-based drug delivery systems, such as liquid crystalline systems (LCSs), can increase drug permeation through the mucosa and thereby improve drug delivery. This study aimed at developing and characterizing the mechanical, rheological, and mucoadhesive properties of four liquid crystalline precursor systems (LCPSs) composed of four different aqueous phases (i) water (FW), (ii) chitosan (FC), (iii) polyethyleneimine (FP), or (iv) both polymers (FPC); oleic acid was used as the oil phase, and ethoxylated and propoxylated cetyl alcohol was used as the surfactant. Polarized light microscopy and small-angle X-ray scattering indicated that all LCPSs formed liquid crystalline states after incorporation of saliva. Rheological, texture, and mucoadhesive assays showed that FPC had the most suitable characteristics for buccal application. In vitro release study showed that FPC could act as a controlled drug delivery system. Finally, based on in vitro cytotoxicity data, FPC is a safe buccal drug delivery system for the treatment of several buccal diseases. PMID- 29019034 TI - Working Life Expectancy at Age 50 in the United States and the Impact of the Great Recession. AB - A key concern about population aging is the decline in the size of the economically active population. Working longer is a potential remedy. However, little is known about the length of working life and how it relates to macroeconomic conditions. We use the U.S. Health and Retirement Study for 1992 2011 and multistate life tables to analyze working life expectancy at age 50 and study the impact of the Great Recession in 2007-2009. Despite declines of one to two years following the recession, in 2008-2011, American men aged 50 still spent 13 years, or two-fifths of their remaining life, working; American women of the same age spent 11 years, or one-third of their remaining life, in employment. Although educational differences in working life expectancy have been stable since the mid-1990s, racial differences started changing after the onset of the Great Recession. Our results show that although Americans generally work longer than people in other countries, considerable subpopulation heterogeneity exists. We also find that the time trends are fluctuating, which may prove troublesome as the population ages. Policies targeting the weakest performing groups may be needed to increase the total population trends. PMID- 29019032 TI - Nanotechnology as a Delivery Tool for Precision Cancer Therapies. AB - Genomic analyses from patients with cancer have improved the understanding of the genetic elements that drive the disease, provided new targets for treating this relentless disease, and offered criteria for stratifying patient populations that will benefit most from treatments. In the last decade, several new targeted therapies have been approved by the FDA based on these omics findings, leading to significantly improved survival and quality of life for select patient populations. However, many of these precision medicines, e.g., nucleic acid-based therapies and antibodies, suffer from poor plasma stability, suboptimal pharmacokinetic properties, and immunological toxicities that prohibit their clinical translation. Nanotechnology is being explored as a delivery platform that can enable the successful delivery of these precision medicine treatments without these limitations. These precision nanomedicines are able to protect the cargo from degradation or premature/burst release prior to accumulation at the tumor site and improve the selectivity to cancer cells by incorporating ligands that can target receptors overexpressed on the cancer cell surface. Here, we review the development of several precision nanomedicines based on genomic analysis of clinical samples, actively targeted nanoparticle delivery systems in the clinic, and the pathophysiological barriers of the tumor microenvironment. Successful translation of these precision nanomedicine initiatives will require an effective collaboration between basic and clinical investigators to match the right patient with the right therapies and to deliver them at therapeutic concentrations which will improve overall treatment responses. PMID- 29019035 TI - Concanavalin A Induces Cortical Neuron Apoptosis by Causing ROS Accumulation and Tyrosine Kinase Activation. AB - The lectin, concanavalin A (Con A), is the most extensively investigated member of the lectin family of plant proteins, but its effects on cortical neurons and astrocytes are poorly understood. In cultured cortical neurons and astrocytes, Con A exhibited dose-dependent neurotoxicity, but this was not observed in astrocytes. Similarly, in the cortical areas of rat brains, intracranial administration of Con A caused neuronal but no astrocyte damage. Methyl-alpha-D mannopyranoside, a competitor of Con A, blocked Con A-induced cell death, whereas AMPA/KA receptor antagonists showed partial blocking effects. Furthermore, the mRNA levels of TNF-alpha, IL-1beta, and IL-6 were elevated in astrocytes and cortical neurons treated with Con A. Intracellular reactive oxygen species (ROS) levels were increased in Con A-treated cortical neurons, and N-acetyl-cysteine (NAC, an antioxidant) and diphenyleneiodonium (DPI, a NADPH oxidase inhibitor) reduced intracellular ROS accumulation. Likewise, AG556 (a TNF-alpha inhibitor) and AG82 (a tyrosine kinase inhibitor) both reduced Con A-induced intracellular ROS accumulation. Furthermore, Con A-induced tyrosine phosphorylation was decreased by NAC and by AG556. Taken together, Con A-induced apoptosis in cortical neurons occurred as a sequel to Con A binding to neuronal glycoproteins and intracellular ROS accumulation. Interestingly, Con A-induced cellular damage was observed in cortical neurons but not in astrocytes or microglia. PMID- 29019036 TI - Neural networks underlying trait aggression depend on MAOA gene alleles. AB - Low expressing alleles of the MAOA gene (MAOA-L) have been associated with an increased risk for developing an aggressive personality. This suggests an MAOA-L specific neurobiological vulnerability associated with trait aggression. The neural networks underlying this vulnerability are unknown. The present study investigated genotype-specific associations between resting state brain networks and trait aggression (Buss-Perry Aggression Questionnaire) in 82 healthy Caucasian males. Genotype influences on aggression-related networks were studied for intrinsic and seed-based brain connectivity. Intrinsic connectivity was higher in the ventromedial prefrontal cortex (VMPFC) of MAOA-L compared to high expressing allele (MAOA-H) carriers. Seed-based connectivity analyses revealed genotype differences in the functional involvement of this region. MAOA genotype modulated the relationship between trait aggression and VMPFC connectivity with supramarginal gyrus (SMG) and areas of the default mode network (DMN). Separate analyses for the two groups were performed to better understand how the genotype modulated the relationship between aggression and brain networks. They revealed a positive correlation between VMPFC connectivity and aggression in right angular gyrus (AG) and a negative correlation in right SMG in the MAOA-L group. No such effect emerged in the MAOA-H carriers. The results indicate a particular relevance of VMPFC for aggression in MAOA-L carriers; in specific, a detachment from the DMN along with a strengthened coupling to the AG seems to go along with lower trait aggression. MAOA-L carriers may thus depend on a synchronization of emotion regulation systems (VMPFC) with core areas of empathy (SMG) to prevent aggression. PMID- 29019038 TI - Utilisation and Safety of Deferasirox: Results from an Observational Cohort Study in England. AB - INTRODUCTION: Deferasirox (EXJADE(r), Novartis, UK) is an oral iron-chelating agent primarily used to reduce chronic iron overload in patients receiving blood transfusions for various chronic anaemias and some non-transfusion dependant anaemias. OBJECTIVE: The aim of this study was to examine the utilisation and safety of deferasirox used in general practice in England. METHOD: A single exposure observational cohort study design was used. Patients were identified from dispensed prescriptions for deferasirox between September 2006 and September 2014. Outcome data were collected via postal questionnaires sent to prescribers >= 6 months after first dispensed prescription for an individual patient. Summary descriptive statistics were calculated. RESULTS: The evaluable cohort consisted of 122 patients, of which 41.8% were aged 2-17 years. Frequent reasons for prescribing were sickle cell anaemia (27/103 where specified, 26.2%) and beta thalassaemia (26, 25.2%). The majority of patients (43/51, 84.3%) were prescribed the licensed doses of 10 or 20 mg/kg/day at start. Prior measurements of serum creatinine were only reported for a small proportion this study (18/122, 14.8%). In total, 91 incident events were reported, including two of raised serum creatinine. CONCLUSION: These results show that deferasirox is largely being prescribed for its licensed indications in general practice in England and events reported were consistent with the known safety profile. PMID- 29019037 TI - Role of sulfate, chloride, and nitrate anions on the degradation of fluoroquinolone antibiotics by photoelectro-Fenton. AB - Taking ciprofloxacin (CIP) as a fluoroquinolone antibiotic model, this work explores the role of common anions (sulfate, nitrate, and chloride) during the application of photoelectro-Fenton (PEF) at natural pH to degrade this type of compound in water. The system was composed of an IrO2 anode, Ti, or gas diffusion electrode (GDE) as cathode, Fe2+, and UV (254 nm). To determine the implications of these anions, the degradation pathway and efficiency of the PEF sub-processes (UV photolysis, anodic oxidation, and electro-Fenton at natural pH) were studied in the individual presence of the anions. The results highlight that degradation routes and kinetics are strongly dependent on electrolytes. When chloride and nitrate ions were present, indirect electro-chemical oxidation was identified by electro-generated HOCl and nitrogenated oxidative species, respectively. Additionally, direct photolysis and direct oxidation at the anode surface were identified as degradation routes. As a consequence of the different pathways, six primary CIP by-products were identified. Therefore, a scheme was proposed representing the pathways involved in the degradation of CIP when submitted to PEF in water with chloride, nitrate, and sulfate ions, showing the complexity of this process. Promoted by individual and synergistic actions of this process, the PEF system leads to a complete elimination of CIP with total removal of antibiotic activity against Staphylococcus aureus and Escherichia coli, and significant mineralization. Finally, the role of the anions was tested in seawater containing CIP, in which the positive contributions of the anions were partially suppressed by its OH radical scavenger action. The findings are of interest for the understanding of the degradation of antibiotics via the PEF process in different matrices containing sulfate, nitrate, and chloride ions. PMID- 29019039 TI - Portrayals of Psychiatry and Mental Disorders in Hispanic Rock Music. PMID- 29019040 TI - Migraine-Like Visual Auras Among Traumatized Cambodians with PTSD: Fear of Ghost Attack and Other Disasters. AB - This article profiles visual auras among traumatized Cambodian refugees attending a psychiatric clinic. Thirty-six percent (54/150) had experienced an aura in the previous 4 weeks, almost always phosphenes (48% [26/54]) or a scintillating scotoma (74% [40/54]). Aura and PTSD were highly associated: patients with visual aura in the last month had greater PTSD severity, 3.6 (SD = 1.8) versus 1.9 (SD = 1.6), t = 10.2 (df = 85), p < 0.001, and patients with PTSD had a higher rate of visual aura in the last month, 69% (22/32) versus 13% (7/55), odds ratio 15.1 (5.1-44.9), p < 0.001. Patients often had a visual aura triggered by rising up to the upright from a lying or sitting position, i.e., orthostasis, with the most common sequence being an aura triggered upon orthostasis during a migraine, experienced by 60% of those with aura. The visual aura was often catastrophically interpreted: as the dangerous assault of a supernatural being, most commonly the ghost of someone who died in the Pol Pot period. Aura often triggered flashback. Illustrative cases are provided. The article suggests the existence of local biocultural ontologies of trauma as evinced by the centrality of visual auras among Cambodian refugees. PMID- 29019041 TI - Remediation of persistent organic pollutant-contaminated soil using biosurfactant enhanced electrokinetics coupled with a zero-valent iron/activated carbon permeable reactive barrier. AB - Zero-valent iron/activated carbon (Fe/C) particles can degrade persistent organic pollutants via micro-electrolysis and therefore, they may be used to develop materials for permeable reactive barriers (PRBs). In this study, surfactant enhanced electrokinetics (EK) was coupled with a Fe/C-PRB to treat phenanthrene (PHE) and 2,4,6-trichlorophenol (TCP) co-contaminated clay soil. An environment friendly biosurfactant, rhamnolipid, was selected as the solubility-enhancing agent. Five bench-scale tests were conducted to investigate the performance of EK PRB on PHE and TCP removal from soil as well as the impact of pH and rhamnolipid concentration. The results show that both PHE and TCP, driven by electro-osmotic flow (EOF), moved toward the cathode and reacted with the Fe/C-PRB. Catholyte acidification and rhamnolipid concentration increase improved the removal efficiencies of PHE and TCP. The highest removal efficiency of PHE in soil column was five times the efficiency of the control group on which only EK was applied (49.89 versus 9.40%). The highest removal efficiency of TCP in soil column was 4.5 times the efficiency of the control group (64.60 versus 14.30%). Desorption and mobility of PHE and TCP improved with the increase of rhamnolipid concentration when this exceeded the critical micelle concentration. This study indicates that the combination of EK and a Fe/C-PRB is efficient and promising for removing persistent organic pollutants (POPs) from contaminated soil with the enhancement of rhamnolipid. PMID- 29019043 TI - Large Lateral Photovoltaic Effect in MoS2/GaAs Heterojunction. AB - Molybdenum disulfide (MoS2) nanoscaled films are deposited on GaAs substrates via magnetron sputtering technique, and MoS2/GaAs heterojunctions are fabricated. The lateral photovoltaic effect (LPE) of the fabricated MoS2/GaAs heterojunctions is investigated. The results show that a large LPE can be obtained in the MoS2/n GaAs heterojunction. The LPE exhibits a linear dependence on the position of the laser illumination and the considerably high sensitivity of 416.4 mV mm-1. This sensitivity is much larger than the values in other reported MoS2-based devices. Comparatively, the LPE in the MoS2/p-GaAs heterojunction is much weaker. The mechanisms to the LPE are unveiled by constructing the energy-band alignment of the MoS2/GaAs heterojunctions. The excellent LPE characteristics make MoS2 films combined with GaAs semiconductors promising candidates for the application of high-performance position-sensitive detectors. PMID- 29019042 TI - Long-term outcomes of adult medulloblastoma patients treated with radiotherapy. AB - Medulloblastoma (MB) is rare in adults and treatment guidelines are consequently not well-established. Few modern series have reported long-term follow-up and treatment sequelae. We examined long-term outcomes of adult MB patients at one institution. Records of 29 consecutive patients (18 male, 11 female) aged >= 18 years who received radiotherapy (RT) for primary MB from 1990 to 2016 were reviewed. Median age at diagnosis was 28 years (range 18-72 years). Seventeen patients were standard risk and 12 were high risk. Nineteen patients had gross total resection, seven had subtotal resection, and three had biopsy only. Median craniospinal irradiation and boost doses were 36 Gy (range 23.4-39.6 Gy) and 55.8 Gy (range 54-59.4 Gy), respectively. Of 24 patients receiving chemotherapy, 20 received concurrent + adjuvant and 4 received adjuvant only. At median follow-up of 9.0 years (range 1.1-20.5 years), five patients recurred: four in the posterior fossa and one in both the posterior fossa and above the tentorium. Five patients died: two of disease progression and three after possible treatment complications (seizure, lobar pneumonia, and multifactorial sepsis). At last follow-up, 23 patients were alive with no evidence of disease. Long-term effects include executive dysfunction (n = 17), weakness/ataxia (n = 16), and depression/anxiety (n = 13). Kaplan-Meier estimates of 10-year overall survival and failure-free survival are 83% (95% confidence interval [CI] 59-93%) and 79% (CI 55-91%), respectively. Despite encouraging disease control in this cohort, long-term sequelae may limit quality of life. Multimodality pediatric regimens using lower RT doses may be considered to reduce treatment-related morbidity. PMID- 29019044 TI - Hobnail Variant of Papillary Thyroid Carcinoma: a Literature Review. AB - Papillary thyroid carcinoma is the most common thyroid malignancy and it is usually associated with a good prognosis. However, recurrence, metastases, and cancer death may occur in 10 to 15% of patients with more aggressive types of papillary thyroid carcinoma, such as tall cell, columnar cell, solid variant, or the more recently described hobnail variant of papillary thyroid carcinoma. Papillary thyroid carcinoma with a prominent hobnail pattern is a moderately differentiated papillary thyroid carcinoma variant with aggressive clinical behavior and significant mortality. The hobnail variant of papillary thyroid carcinoma shows prominent hobnail features, which have also been referred to as micropapillary. The typical hobnail/micropapillary morphological features show loss of cellular polarity/cohesiveness and support an epithelial-mesenchymal transition as a possible mechanism of metastasis. BRAF p.V600E is the most common mutation in papillary thyroid carcinoma, including the hobnail variant; recent and continuing studies are focused on defining other molecular anomalies that may be useful for prognostic stratification and may provide therapeutic targets. PMID- 29019046 TI - Effect of Reminding Patients to Complete Fecal Immunochemical Testing: A Comparative Effectiveness Study of Automated and Live Approaches. AB - BACKGROUND: The Community Preventive Services Task Force recommends multi component interventions, including patient reminders, to improve uptake of colorectal cancer screening. OBJECTIVE: We sought to compare the effectiveness of different forms of reminders for a direct-mail fecal immunochemical test (FIT) program. DESIGN: Patient-randomized controlled trial. PARTICIPANTS: 2772 adults aged 50-75, not up to date with colorectal cancer screening recommendations, with a clinic visit in the previous year at any of four participating health center clinics. INTERVENTION: Participants were mailed an introductory letter and FIT. Those who did not complete their FIT within 3 weeks were randomized to receive (1) a reminder letter, (2) two automated phone calls, (3) two text messages, (4) a live phone call, (5) a reminder letter and a live phone call, (6) two automated phone calls and a live phone call, or (7) two text messages and a live phone call. Patients with a patient portal account were sent two email reminders, but were not randomized. MAIN MEASURES: FIT return rates for each group, 6 months following randomization. KEY RESULTS: A total of 255 (10%) participants returned their FIT within 3 weeks of the mailing. Among randomized participants (n = 2010), an additional 25.5% returned their FITs after reminders were delivered (estimated overall return rate = 32.7%). In intention-to-treat analysis, compared to the group allocated to receive a reminder letter, return rates were higher for the group assigned to receive the live phone call (OR = 1.51 [1.03-2.21]) and lower for the group assigned to receive text messages (OR = 0.66 [0.43-0.99]). Reminder effectiveness differed by language preference. CONCLUSIONS: Our data suggest that FIT reminders that included a live call were more effective than reminders that relied solely on written communication (a text message or letter). TRIAL REGISTRATION: ClinicalTrials.gov/ctc2/show/NCT01742065 . PMID- 29019045 TI - The characteristics of coronary stenosis in 11,267 patients from Southwest China: a retrospective study. AB - The characteristics of coronary stenosis vary among the different countries or areas. 11,267 patients who have undergone coronary angiography (CAG) from three Southwest China hospitals were investigated. Patient characteristics, coronary stenosis and stent-implant information were recorded and analyzed according to two criteria: "visible stenosis" and ">= 50% stenosis". The patients who have undergone CAG increased year by year, with patients from 60 to 69 years-old taking the highest ratio (34.69%). Based on the ">= 50% stenosis" criteria, the stenotic frequency was 40.54% for Southwest China patients getting CAG. Only 8.14% patients suffered >= 3 stenotic vessels, while 11.58 and 20.82% patients had 2 or 1 stenotic vessel, respectively. However, when using the "visible stenosis" criteria, the stenotic frequency increased to 64.68%. The prevalence of stenosis increased with age based on the "visible stenosis" criteria. There were more male patients with stenosis than female except patients over 80 years old. The stenosis affected almost all main coronary arteries and their branches, with the most affected artery being the left anterior descending artery. There were 3246 cases (28.8%) implanted with 5423 stents with a concurrent age-dependent increasing tendency for stent-implant frequency and average implanted stent number. The numbers of patients who have undergone CAG and suffered from CVD increased rapidly. In these patients, positive rate of CAG was 64.67%, which increased to 72.2% in patients over 60-years old. The incidence of >= 75% stenosis and multiple stenosis increased with age, however it should be noticed there were 18.93% for >= 75% stenosis and 19.52% for multiple stenosis in patients under 40 years old. PMID- 29019047 TI - Autoantibodies against interleukin-21 correlate with disease activity in patients with rheumatoid arthritis. AB - The objective of this study is to investigate the levels of interleukin (IL)-21 and autoantibodies (AAbs) against IL-21 and their association with clinical characteristics and laboratory parameters in patients with rheumatoid arthritis (RA). One hundred twenty-six patients with RA, 69 patients with osteoarthritis (OA), and 88 healthy controls (HC) were included in this study. The levels of IL 21 and AAbs against IL-21 in the serum were measured using enzyme-linked immunosorbent assay (ELISA). The correlation between the levels of IL-21 and anti IL-21 AAbs with clinical and laboratory parameters was evaluated. The results showed that the concentration of IL-21 was significantly higher in the serum of patients with RA (15.58 +/- 3.22 ng/ml) than OA (1.80 +/- 0.99 ng/ml) and HC (0.07 +/- 0.03 ng/ml, p < 0.01). The levels of IL-21 in the serum correlated with erythrocyte sedimentation rate (ESR) in patients with RA (r = 0.435, p < 0.01). Anti-IL-21 AAbs could be detected in RA patients. The median AU value of AAbs against IL-21 was significantly higher in serum of RA (47.90) than in that of OA (15.17) and HC (8.19, p < 0.01). The titers of AAbs against IL-21 correlated with Disease Activity Score-28 (DAS28) (r = 0.449, p < 0.001), ESR (r = 0.386, p < 0.001), and CRP (r = 0.241, p = 0.03). Both IL-21 and AAbs against IL-21 are elevated in RA. The levels of AAbs against IL-21 correlate with disease activity, which suggests that anti-IL-21 AAbs may play a role in the pathogenesis of RA. PMID- 29019048 TI - Parental Action and Referral Patterns in Spatial Clusters of Childhood Autism Spectrum Disorder. AB - Sociodemographic factors have long been associated with disparities in autism spectrum disorder (ASD) diagnosis. Studies that identified spatial clustering of cases have suggested the importance of information about ASD moving through social networks of parents. Yet there is no direct evidence of this mechanism. This study explores the help-seeking behaviors and referral pathways of parents of diagnosed children in Costa Rica, one of two countries in which spatial clusters of cases have been identified. We interviewed the parents of 54 diagnosed children and focused on social network connections that influenced parents' help seeking and referral pathways that led to assessment. Spatial clusters of cases appear to be a result of seeking private rather than public care, and private clinics are more likely to refer cases to the diagnosing hospital. The referring clinic rather than information spread appears to explain the disparities. PMID- 29019049 TI - Raman Spectra and Bulk Modulus of Nanodiamond in a Size Interval of 2-5 nm. AB - Nanodiamond in a 2-5-nm size interval (which is typical for an appearance of quantum confinement effect) show Raman spectra composed of 3 bands at 1325, 1600, and 1500 cm-1 (at the 458-nm laser excitation) which shifts to 1630 cm-1 at the 257-nm laser excitation. Contrary to sp2-bonded carbon, relative intensities of the bands do not depend on the 458- and 257-nm excitation wavelengths, and a halfwidth and the intensity of the 1600 cm-1 band does not change visibly under pressure at least up to 50 GPa. Bulk modulus of the 2-5-nm nanodiamond determined from the high-pressure study is around 560 GPa. Studied 2-5-nm nanodiamond was purified from contamination layers and dispersed in Si or NaCl. PMID- 29019050 TI - Impacting Entry into Evidence-Based Supported Employment: A Population-Based Empirical Analysis of a Statewide Public Mental Health Program in Maryland. AB - We use discrete-time survival regression to study two empirical issues relating to take-up of individual placement and support (IPS) supported employment (SE) services for persons with serious mental illness: (1) the influence of client characteristics on take-up probability, and (2) the possible impacts of a major recent initiative in one state (Maryland) to overcome barriers to IPS-SE expansion. Our longitudinal analysis of population-based Medicaid cohorts, during 2002-2010, provides tentative evidence of positive state initiative impacts on SE take-up rates, and evidence of effects on take-up for clients' diagnoses, prior work-history, health and demographic characteristics, and geographic accessibility to SE providers. PMID- 29019051 TI - The link between narcolepsy and autonomic cardiovascular dysfunction: a translational perspective. AB - Narcolepsy is a rare disease that entails excessive daytime sleepiness, often associated with sudden episodes of muscle weakness known as cataplexy. Narcolepsy with cataplexy (NC) is due to the loss of hypothalamic neurons that release the neuropeptides orexin A and B. Orexin neuron projections prominently target brain structures involved in wake-sleep state switching and the central autonomic network. This review provides an updated summary of the links between NC and autonomic cardiovascular dysfunction from a translational perspective. The available evidence suggests that, compared with control subjects, the heart rate in patients and animal models with NC is variable during wakefulness and normal to high during sleep. Responses of the heart rate to internal stimuli (arousal from sleep, leg movements during sleep, defense response) are blunted. These alterations result from orexin deficiency and, at least during wakefulness before sleep, involve decreased parasympathetic modulation of the heart rate. On the other hand, NC in patients and animal models is associated with a blunted fall in arterial blood pressure from wakefulness to sleep, and particularly to the REM state, coupled to a variable decrease in arterial blood pressure during wakefulness. The former effect is caused, at least in part, by deranged control of the heart, whereas the latter may be due to decreased vasoconstrictor sympathetic activity. Systematic studies are warranted to help clarify whether and how the links between NC and autonomic dysfunction impact on the cardiovascular risk of patients with narcolepsy. PMID- 29019052 TI - Flocculation of coal washing wastewater using polysaccharide produced by Paenibacillus mucilaginosus WL412. AB - Natural polymeric flocculant shows effectiveness in wastewater treatment without increasing the environmental burden. The extracellular substance produced by Paenibacillus mucilaginosus WL412 was identified as an anionic polysaccharide composed of five types of monosaccharides, namely, D-mannose, D-glucuronic acid, D-glucose, D-galactose, and L-fucose with the molar ratio of 2.8:1.2:2.0:1.8:0.8. The purified polysaccharide, POS412, presented high efficiency in flocculating coal washing wastewater and kaolin suspension without the assistance of inorganic coagulants. Addition of POS412 resulted in the polymer bridging phenomenon in suspensions, which was observed by means of scanning electron microscopic imaging, size grading, and zeta-potential analyses. More importantly, POS412 exhibited satisfactory stability after storage in various conditions. The flocculation rate was more than 91% for coal washing wastewater when POS412 was stored for 264 h in the wide range of pH (3-11) and temperature (20-50 degrees C) before use. Results indicate that POS412 is a competent bioflocculant for wastewater treatment. PMID- 29019053 TI - Lewis X-Carrying Neoglycolipids Evoke Selective Apoptosis in Neural Stem Cells. AB - N-glycans carrying the Lewis X trisaccharide [Galbeta1-4 (Fucalpha1-3) GlcNAc] are expressed by neural stem cells (NSCs) exclusively before differentiation, and they actively contribute to the maintenance of stemness of these cells. To address the functional roles of the Lewis X-mediated molecular interactions in NSCs, we created a series of synthetic neoglycolipids that contained a Lewis X carrying glycan connected to an acyl chain through an amide bond. The neoglycolipids formed aqueous micelles displaying functional Lewis X glycotopes. Surprisingly, the neoglycolipid micelles evoked selective apoptosis in undifferentiated NSCs, whereas their differentiated cells remained unaffected. The apoptotic activity depended on the structural integrity of the Lewis X glycotopes and also on the length of the acyl chain, with an optimum length of C18. We propose hypothetical functional mechanisms of the neoglycolipid, which involves selective NSC targeting with Lewis X glycan and apoptotic signaling by the intracellular release of fatty acids. This serendipitous finding may offer a new strategy for controlling neural cell fates using artificial glycoclusters. PMID- 29019054 TI - The Happiest Kids on Earth. Gender Equality and Adolescent Life Satisfaction in Europe and North America. AB - Cross-national differences in adolescent life satisfaction in Europe and North America are consistent, but remain poorly understood. While previous studies have predominantly focused on the explanatory role of economic factors, such as national wealth and income equality, they revealed weak associations, at most. This study examines whether societal gender equality can explain the observed cross-national variability in adolescent life satisfaction. Based on the assumption that gender equality fosters a supportive social context, for example within families through a more equal involvement of fathers and mothers in child care tasks, adolescent life satisfaction was expected to be higher in more gender equal countries. To test this hypothesis, national-level data of gender equality (i.e., women's share in political participation, decision making power, economic participation and command over resources) were linked to data from 175,470 adolescents aged 11-16 years old (M age = 13.6, SD = 1.64, 52% girls) from 34 European and North American countries involved in the 2009/10 Health Behaviour in School-aged Children (HBSC) study. Results of linear multilevel regression analyses indicate that adolescents in countries with relatively high levels of gender equality report higher life satisfaction than their peers in countries with lower levels of gender equality. The association between gender equality and adolescent life satisfaction remained significant after controlling for national wealth and income equality. It was equally strong for boys and girls. Moreover, the association between gender equality and life satisfaction was explained by social support in the family, peer and school context. This analysis suggests that gender equality fosters social support among members of a society, which in turn contributes to adolescent life satisfaction. Thus, promoting gender equality is likely to benefit all members of a society; not just by giving equal rights to women and girls, but also by fostering a supportive social climate for all. PMID- 29019055 TI - Psychological distress and coping strategies among women with incurable lung cancer: a qualitative study. AB - PURPOSE: Limited research has focused on women with lung cancer (LC) although they are recognized as the most vulnerable to psychological distress. This study explored in-depth the psychological distress experienced by women with incurable LC and analyzed the coping strategies with which they manage that distress. METHODS: A qualitative methodology with in-depth interviews was employed for 34 women with advanced or recurrent LC. An inductive data-driven thematic analysis was applied to analyze transcripts. RESULTS: Psychological distress was an iterative process for the women. Four themes were identified: shock regarding the diagnosis, distress regarding cancer treatment and its side effects, the facing of a recurrent or progressive disease, and persistent struggle with the life limiting disease. Various coping strategies applied by the women to manage psychological distress were grouped into four themes: relying upon social support, focusing on positive thoughts, avoidance-based strategies, and religious faith and acceptance. CONCLUSIONS: Women with incurable LC experienced substantial iterative psychological distress throughout the illness, regardless of length of illness at time of interview. They applied multiple forms of coping. The findings enrich the limited existing literature on this understudied population and provide direction for the future development of interventions to improve their psychological well-being. PMID- 29019057 TI - Duplication of Yq- and proximal Yp-arms with deletion of almost all PAR1 (including SHOX) in a young man with non-obstructive azoospermia, short stature and skeletal defects. AB - Duplications of Yq arm (and AZF) seems to be tolerated by fertile males, while mutations, deletions, duplications or haploinsufficiency of SHOX can originate a wide range of phenotypes, including short stature and skeletal abnormalities. We report a case of non-obstructive azoospermia in a young man with short stature, skeletal anomalies, normal intelligence and hormonal parameters. This male showed a very singular Y-chromosome aberration, consisting of a duplication of Yq and proximal regions of Yp, with a deletion of almost all PAR1 in Yptel, including SHOX. CBA- and RBA-banding and FISH-mapping with telomeric, centromeric, AZF and SHOX probes were used. These results were confirmed by array CGH, which revealed the following karyotype constitution: arr [hg19] Xp22.33 or Yp11.32p11.31 (310,932-2,646,815 or 260,932-2,596,815) *1, Yp11.2q12 (8,641,183-59,335,913) *2. We conclude that the haploinsufficience of SHOX may be the cause of short stature and skeletal defects in the patient, while the non-obstructive azoospermia could be related to the lack of X-Y pairing during meiosis originated by the anomalous configuration of this chromosome abnormality and large deletion which occurred in Yp-PAR1. PMID- 29019058 TI - Devices of Responsibility: Over a Decade of Responsible Research and Innovation Initiatives for Nanotechnologies. AB - Responsible research and innovation (RRI) has come to represent a change in the relationship between science, technology and society. With origins in the democratisation of science, and the inclusion of ethical and societal aspects in research and development activities, RRI offers a means of integrating society and the research and innovation communities. In this article, we frame RRI activities through the lens of layers of science and technology governance as a means of characterising the context in which the RRI activity is positioned and the goal of those actors promoting the RRI activities in shaping overall governance patterns. RRI began to emerge during a time of considerable deliberation about the societal and governance challenges around nanotechnology, in which stakeholders were looking for new ways of integrating notions of responsibility in nanotechnology research and development. For this reason, this article focuses on nanotechnology as the site for exploring the evolution and growth of RRI. PMID- 29019059 TI - Systematical Investigation of Different Drug Nanocrystal Technologies to Produce Fast Dissolving Meloxicam Tablets. AB - Three different methods, i.e., high-pressure homogenization, wet bead milling, and a combination approach of freeze-drying and high-pressure homogenization, were used to produce meloxicam nanosuspensions, respectively. Wet bead milling led to the nanosuspensions with smallest particle size (88 nm) after 4 h and optimal dissolution performances. Freeze-dried meloxicam powder could highly improve the size reduction efficiency compared to the unmodified drug and particle size of the freeze-dried sample could be reduced to 342 nm after only one homogenization cycle at 1000 bar. The polymorphism transition and change of the particle morphology after the lyophilization might be important reasons to affect the nanosizing processes. Interestingly, the tablets prepared by using nanosuspensions from homogenizer and combination process showed faster dissolution in the first 20 min than the bead milling nanocrystal tablets. PMID- 29019056 TI - Physical Exercise Modulates L-DOPA-Regulated Molecular Pathways in the MPTP Mouse Model of Parkinson's Disease. AB - Parkinson's disease (PD) is characterized by the degeneration of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc), resulting in motor and non-motor dysfunction. Physical exercise improves these symptoms in PD patients. To explore the molecular mechanisms underlying the beneficial effects of physical exercise, we exposed 1-methyl-4-phenyl-1,2,3,6-tetrahydropyrimidine (MPTP) treated mice to a four-week physical exercise regimen, and subsequently explored their motor performance and the transcriptome of multiple PD-linked brain areas. MPTP reduced the number of DA neurons in the SNpc, whereas physical exercise improved beam walking, rotarod performance, and motor behavior in the open field. Further, enrichment analyses of the RNA-sequencing data revealed that in the MPTP treated mice physical exercise predominantly modulated signaling cascades that are regulated by the top upstream regulators L-DOPA, RICTOR, CREB1, or bicuculline/dalfampridine, associated with movement disorders, mitochondrial dysfunction, and epilepsy-related processes. To elucidate the molecular pathways underlying these cascades, we integrated the proteins encoded by the exercise induced differentially expressed mRNAs for each of the upstream regulators into a molecular landscape, for multiple key brain areas. Most notable was the opposite effect of physical exercise compared to previously reported effects of L-DOPA on the expression of mRNAs in the SN and the ventromedial striatum that are involved in-among other processes-circadian rhythm and signaling involving DA, neuropeptides, and endocannabinoids. Altogether, our findings suggest that physical exercise can improve motor function in PD and may, at the same time, counteract L-DOPA-mediated molecular mechanisms. Further, we hypothesize that physical exercise has the potential to improve non-motor symptoms of PD, some of which may be the result of (chronic) L-DOPA use. PMID- 29019060 TI - Reports of three cases with the initial presentation of mesenteric vasculitis in children with system lupus erythematous. AB - We reviewed three cases of systemic lupus erythematosus (SLE) in children with mesenteric vasculitis (LMV) as initial presentation and analysed their clinical characteristics to improve the understanding of this disease. Three patients with SLE were admitted to our hospital and initially presented with gastrointestinal symptoms. We retrospectively analysed their clinical data, including clinical presentations, laboratory results, images and short- and long-term treatment outcomes. (1) All three children were school-age girls. The patients were presented to our hospital with vomiting and abdominal pain as initial symptoms. The patients also had urinary symptoms, including proteinuria in three cases, ureteropelvic dilatation in two cases and hydronephrosis in one case. (2) The patients had various positive autoantibodies and a low complement level. Two of the patients had blood system involvement, and one had central nervous system symptoms. (3) All of the patients had active SLE (SLEDAI-2K score >= 5 points and moderate to severe degree 10-24). (4) Abdominal CT scans with contrast showed the 'target sign' of the intestinal wall in case 1, a slightly thickened intestinal wall and blurry mesentery in case 2, and the 'comb sign' of the margin mesenteric blood vessels in case 3. (5) All three patients responded promptly to steroid therapy. The patients' symptoms improved rapidly after treatment. LMV is a rare SLE complication. The lack of comprehensive understanding of LMV's clinical presentation makes it considerably challenging to diagnose. LMV is also a serious complication of SLE that is often accompanied by concurrent damage to other organs. LMV often occurs with active SLE but responds rapidly to glucocorticoid therapy. Therefore, in order to make early diagnosis and treatment, we suggest checking autoantibodies and abdominal CT scans with contrast when children present with gastrointestinal symptoms and the involvement of other organs, especially the urinary system. PMID- 29019062 TI - Adding metyrapone to chemotherapy plus mitotane for Cushing's syndrome due to advanced adrenocortical carcinoma. PMID- 29019061 TI - Neuropsychological Measures that Predict Progression from Mild Cognitive Impairment to Alzheimer's type dementia in Older Adults: a Systematic Review and Meta-Analysis. AB - This study aimed to determine the extent to which cognitive measures can predict progression from mild cognitive impairment (MCI) to Alzheimer's type dementia (AD), assess the predictive accuracy of different cognitive domain categories, and determine whether accuracy varies as a function of age and length of follow up. We systematically reviewed and meta-analyzed data from longitudinal studies reporting sensitivity and specificity values for neuropsychological tests to identify individuals with MCI who will develop AD. We searched articles in Medline, Cochrane, EMBASE, PsycINFO, and the Web of Science. Methodological quality was assessed using the STARDem and QUADAS standards. Twenty-eight studies met the eligibility criteria (2365 participants) and reported predictive values from 61 neuropsychological tests with a 31-month mean follow-up. Values were pooled to provide combined accuracy for 14 cognitive domains. Many domains showed very good predictive accuracy with high sensitivity and specificity values (>= 0.7). Verbal memory measures and many language tests yielded very high predictive accuracy. Other domains (e.g., executive functions, visual memory) showed better specificity than sensitivity. Predictive accuracy was highest when combining memory measures with a small set of other domains or when relying on broad cognitive batteries. Cognitive tests are excellent at predicting MCI individuals who will progress to dementia and should be a critical component of any toolkit intended to identify AD at the pre-dementia stage. Some tasks are remarkable as early indicators, whereas others might be used to suggest imminent progression. PMID- 29019063 TI - Statin Prescribing in the Elderly: Special Considerations. AB - PURPOSE OF REVIEW: Our aim was to examine the current evidence behind prescribing statins to individuals over 65 years of age with emphasis on those older than 75. Individuals over 75 years of age may often have multiple comorbidities and take many medications. Additionally, they are often underrepresented in randomized controlled trials (RCTs) of statins in older populations. While results of RCTs demonstrate the benefit of statin therapy in both primary and secondary prevention patients, clinicians must more carefully consider adverse effects and drug-drug interactions before prescribing statin therapy as well as determining the intensity in older individuals. RECENT FINDINGS: Four primary prevention trials support statins for primary prevention following a clinician-patient risk discussion. Of these, JUPITER and HOPE-3 studied participants 70 years of age and over who derived benefit. However, in those over 85 years, available information is inadequate to guide decisions regarding statin therapy. Documented statin adverse effects include new onset diabetes, myopathy, and medication interactions. Although cognitive decline has been reported anecdotally, its incidence was comparable to placebo in two RCTs with validated cognitive evaluations. Concerns about significant liver and kidney injury with statins were not corroborated in RCTs. For most patients, the potential for reducing ASCVD risk outweighs possible adverse effects; however, in the elderly, the impact of drug treatment on cognition, musculoskeletal ability, and independence must be heavily weighed. Given the limited high quality evidence for primary prevention in individuals over 75 years of age, neither the ACC-AHA nor USPSTF cholesterol guidelines recommend statin therapy for primary prevention in this patient population. If prescribed, physician judgment and shared decision-making are crucial. To aid clinicians, imaging studies of subclinical atherosclerosis may improve specificity of statin therapy to prevent ASCVD in the elderly in primary prevention. PMID- 29019065 TI - Correction to: Segregation of a novel p.(Ser270Tyr) MAF mutation and p.(Tyr56*) CRYGD variant in a family with dominantly inherited congenital cataracts. AB - There was a spacing error in the initial online publication, and there were errors in the Acknowledgments section. The original article has been updated. PMID- 29019064 TI - Inhibition in aging: What is preserved? What declines? A meta-analysis. AB - Aging has been assumed to go along with deficient inhibitory processes in cognitive performance. According to this inhibition deficit hypothesis, older adults are less able to suppress or ignore irrelevant thoughts and actions than young adults are. This hypothesis has been investigated in a large number of studies. We conducted a meta-analysis to determine whether there is an inhibition deficit in older age and whether this deficit is general or task-specific. We selected 176 studies in which young and older adults were tested on tasks commonly assumed to measure inhibition (i.e., the color Stroop, flanker, Simon, stop-signal, go/no-go, global-local, positive and negative compatibility tasks, as well as the paradigm assessing n-2 repetition costs in task switching). For most tasks (i.e., the color Stroop, flanker, and local tasks, as well as the n-2 repetition costs), the results speak against an inhibition deficit in older age. Only in a few tasks (i.e., the go/no-go and stop-signal tasks), older adults showed impaired inhibition. Moreover, for four tasks (i.e., the Simon, global, positive and negative compatibility tasks), the results suggest that more studies are necessary to draw a firm conclusion. Together, the present findings call into question the hypothesis of a general inhibition deficit in older age. PMID- 29019067 TI - A novel mode of stimulating platelet formation activity in megakaryocytes with peanut skin extract. AB - We report in this study novel biochemical activities of peanut skin extract (PEXT) on thrombocytopoiesis. Peanut skin, derived from Arachis hypogaea L., is a traditional Chinese medicine that is used to treat chronic hemorrhage. We have shown that oral administration of PEXT increases the peripheral platelet levels in mice. Recently, we reported a liquid culture system that is useful for investigating megakaryocytopoiesis and thrombocytopoiesis from human CD34+ cells. In this liquid culture system, PEXT was shown to enhance the formation of CD41+/DAPI- cells (platelets), but had no effect on the formation of CD41+/DAPI+ cells (megakaryocytes) or on the DNA content. Furthermore, PEXT selectively stimulated proplatelet formation from cultured mature megakaryocytes and phorbol 12-myristate 13 acetate (PMA)-induced formation of platelet-like particles from Meg01 cells. Despite having no influence on the formation of megakaryocyte colony forming units (CFUs), PEXT increased the size of megakaryocytes during their development from CD34+ cells. PEXT showed no effect on the GATA-1 and NF-E2 mRNA levels, which are known to play an important role in thrombocytopoiesis and, based on the results of a pMARE-Luc (pGL3-MARE-luciferase) assay, had no influence on NF-E2 activation in Meg01 cells. These results suggest that PEXT accelerates proplatelet formation from megakaryocytes but does not influence the development of hematopoietic stem cells into megakaryocytes. PMID- 29019066 TI - Release Mechanism Between Ion Osmotic Pressure and Drug Release in Ionic-Driven Osmotic Pump Tablets (I). AB - The objective of this study was to develop an authentic ionic-driven osmotic pump system and investigate the release mechanism, simultaneously exploring the in vitro and in vivo correlation of the ionic-driven osmotic pump tablet. A comparison of the ionic-driven and conventional theophylline osmotic pump, the influence of pH and the amount of sodium chloride on drug release, the relationship between the ionic osmotic pressure and the drug release, and the pharmacokinetics experiment in beagle dogs were investigated. Consequently, the similarity factor (f 2 ) between the novel and conventional theophylline osmotic pump tablet was 60.18, which indicated a similar drug-release behavior. Also, the release profile fitted a zero-order kinetic model. The relative bioavailability of the ionic-driven osmotic pump to the conventional osmotic pump calculated from the AUC (0-infinity) was 93.6% and the coefficient (R = 0.9945) confirmed that the ionic-driven osmotic pump exhibited excellent IVIVC. The driving power of the ionic-driven osmotic pump was produced only by ions, which was strongly dependent on the ion strength, and a novel formula for the ionic-driven osmotic pump was derived which indicated that the drug-release rate was proportional to the ionic osmotic pressure and the sodium chloride concentration. Significantly, the formula can predict the drug-release rate and release characteristics of theophylline ionic-driven osmotic pumps, guiding future modification of the ionic osmotic pump. PMID- 29019068 TI - Early epithelial complications of accelerated trans-epithelial corneal crosslinking in treatment of keratoconus: a case series. AB - BACKGROUND: To report a case series of early postoperative complications following combined accelerated corneal crosslinking (CXL) and trans-epithelial technique in keratoconus. CASE PRESENTATIONS: Eleven eyes underwent accelerated trans-epithelial CXL (18 mW/cm2 for 5 min). Seven eyes (64%) developed complications in the first week postoperatively. Five eyes had large epithelial defects, and two eyes were complicated with diffuse punctate epithelial erosions. Early transient stromal haze was seen in eyes with epithelial complications. Anterior segment optical coherence tomography showed a faint demarcation line in six eyes (55%) with epithelial complications. CONCLUSION: A significant number of eyes developed epithelial complications shortly after combined accelerated trans epithelial CXL, which defeated the benefits of leaving the epithelium intact. PMID- 29019069 TI - PRO-CON debate: valve sparing aortic root surgery. PRO: reimplantation. AB - The remodeling and the reimplantation procedures were described more than 25 years ago with the aim of sparing, otherwise normal aortic valve in the presence of a root aneurysm. Because of its ability to reconstruct the sinuses of Valsalva, the remodeling procedure was considered to be more physiological than the reimplantation. However, because the remodeling lacked annular stabilization, the long-term stability of the procedure was questioned. However, through the years, both procedures have been significantly improved, so that is now possible to perform a reimplantation procedure with neo-sinuses reconstruction or a remodeling procedure with annular stabilization. In this way, both procedures can now guarantee an anatomical root reconstruction and an increased long-term durability. Today preference for a reimplantation procedure is based on the perception of a better reproducibility of the surgical procedure, an increased procedural safety due to the characteristic hemostatic feature of this surgical approach, and to a much larger amount of data present in the literature on long term results. PMID- 29019070 TI - Time-Dependent Production of Endothelium-Related Biomarkers is Affected Differently in Hemorrhagic and Septic Shocks. AB - Shock is associated with inflammation-induced endothelial dysfunction. The aim of this study was to determine time-dependent alteration of blood biomarkers related to endothelial function in hemorrhagic and septic shocks. Hemorrhagic shock was induced by bleeding the animals. A cecal ligation and incision model was used to induce septicemia. Resuscitation was carried out by infusion of lactated Ringer's solution. Resuscitation extended survival time in both shock groups. Blood pressure increased by resuscitation in the hemorrhagic shock but not in the septic shock. While hemorrhage caused a decrease in plasma levels of nitric oxide (NO) and hydrogen sulfide (H2S), asymmetric dimethylarginine (ADMA) and total antioxidant capacity (TAC) levels were increased. Only NO and TAC levels at the late phase were reversed by resuscitation. On the other hand, plasma levels of NO, ADMA, and TAC were increased by septicemia and resuscitation did not alter the septicemia-induced increase. These results indicate that blood biomarkers related to endothelial function were differentially affected by hemorrhage and septicemia. The time scale of biomarker production should be taken into consideration for the diagnostic and therapeutic approaches to these life threatening diseases. PMID- 29019072 TI - Mass spectrometry-based metabolomics to identify taurine-modified metabolites in heart. AB - Taurine is an abundant beta-amino acid found in high concentration in mammalian tissues. Taurine possesses many beneficial functions in mammalian cells. There are also a variety of taurine-conjugated products formed between taurine and bile acids, fatty acids, chloramine, mitochondrial tRNA, etc., and some of these have been identified as functional compounds. In the present study, we identified taurine-conjugated metabolites using LC-MS-based metabolome analysis of heart extracts prepared from hearts of wild-type and taurine transporter-knockout (TauTKO) mice, the latter being severely taurine deficient. Comparison analysis of metabolites identified taurine-containing dipeptides, including glutamyltaurine, aspartyltaurine, isoleucyltaurine, and leucyltaurine, which are present in wild-type but not TauTKO hearts. Acyltaurines (taurine-conjugated fatty acids) and taurine-conjugated bile acids were also detected, with levels unchanged in the TauTKO heart in comparison to the wild-type heart. These results demonstrate that taurine exists not only in the standard free form within the heart, but also in multiple conjugated forms, whose functions in the heart remain to be discovered. PMID- 29019074 TI - In vitro Inhibitory Effect of Gymnema sylvestre Extracts and Total Gymnemic Acids Fraction on Select Cytochrome P450 Activities in Rat Liver Microsomes. AB - BACKGROUND AND OBJECTIVES: Gymnema sylvestre R. Br. is a well-known Indian medicinal herb. Gymnemic acids are pentacyclic triterpenes saponins and active phytoconstituents of Gymnema sylvestre. The study aimed at evaluation of the in vitro rat liver cytochrome P450 (CYP) inhibition potential of extracts and total gymnemic acid (TA)-enriched fractions from G. sylvestre. METHODS: Standardization of G. sylvestre [ethanolic (EL), hydroethanolic (HE), total acid of ethanolic (TAE), total acid of hydroethanolic (TAHE) and total acid of aqueous (TAAQ) extract] was done with respect to deacyl gymnemic acid (DAGA), using reverse phase-high performance liquid chromatography (RP-HPLC). Total triterpenoid content was determined by vanillin perchloric acid assay. RESULTS: Total triterpene content was found to be the highest in TAAQ (59.86 +/- 0.005% w/w) and TAE (49.77 +/- 0.009% w/w). TAAQ showed IC50 <= 50 ug/ml for all selected CYP activities. Testosterone 6beta-hydroxylation was strongly inhibited by TAE (IC50: 15.48 +/- 2.13 ug/ml) and was moderately by TAAQ and EL with IC50 >= 50 ug/ml. Flurbiprofen 4'-hydroxylation was subject to strong, weak and moderate inhibition by TAAQ (IC50: 34.67 +/- 1.38 ug/ml), TAE (IC50: >= 50 ug/ml) and EL (IC50: > 50 ug/ml), respectively. Dextromethorphan O-demethylation was inhibited by TAHE and TAAQ. CONCLUSIONS: In vitro inhibition studies suggested that TA strongly inhibits activity of selected CYP. This inhibition may possibly be due to triterpenoids and gymnemic acids that have been reported to be present in it. Data also suggest a potential for possible in vivo herb-drug interactions involving G. sylvestre and other medications that are metabolized by the same CYP. PMID- 29019075 TI - Efficient Malic Acid Production in Escherichia coli Using a Synthetic Scaffold Protein Complex. AB - Recently, malic acid has gained attention due to its potential application in food, pharmaceutical, and medical industries. In this study, the synthetic scaffold complex strategy was employed between the two key enzymes pyruvate kinase (PykF) and malic enzyme (SfcA); SH3 ligand was attached to PykF, and the SH3 domain was attached to the C-terminus of ScfA. Synthetic scaffold systems can organize enzymes spatially and temporally to increase the local concentration of intermediates. In a flask culture, the recombinant strain harboring scaffold complex produced a maximum concentration of 5.72 g/L malic acid from 10 g/L glucose. The malic acid production was significantly increased 2.1-fold from the initial culture period. Finally, malic acid production was elevated to 30.2 g in a 5 L bioreactor from recombinant strain XL-1 blue. PMID- 29019073 TI - Cholecalciferol-PEG Conjugate Based Nanomicelles of Doxorubicin for Treatment of Triple-Negative Breast Cancer. AB - Triple-negative breast cancer (TNBC) is the leading cancer in women. Chemotherapeutic agents used for TNBC are mainly associated with dose-dependent toxicities and development of resistance. Hence, novel strategies to overcome resistance and to offer dose reduction are warranted. In this study, we designed a novel dual-functioning agent, conjugate of cholecalciferol with PEG2000 (PEGCCF) which can self-assemble into micelles to encapsulate doxorubicin (DOX) and act as a chemosensitizer to improve the therapeutic potential of DOX. DOX loaded PEGCCF (PEGCCF-DOX) micelles have particle size, polydispersity index (PDI), and zeta potential of 40 +/- 8.7 nm, 0.180 +/- 0.051, and 2.39 +/- 0.157 mV, respectively. Cellular accumulation studies confirmed that PEGCCF was able to concentration-dependently enhance the cellular accumulation of DOX and rhodamine 123 in MDA-MB-231 cells through its P-glycoprotein (P-gp) inhibition activity. PEGCCF-DOX exhibited 1.8-, 1.5-, and 2.9-fold enhancement in cytotoxicity of DOX in MDA-MB-231, MDA-MB-468, and MDA-MB-231DR (DOX-resistant) cell lines, respectively. Western blot analyses showed that PEGCCF-DOX caused significant reduction in tumor markers including mTOR, c-Myc, and antiapoptotic marker Bcl-xl along with upregulation of preapoptotic marker Bax. Further, reduction in mTOR activity by PEGCCF-DOX indicates reduced P-gp activity due to P-gp downregulation as well and, hence, PEGCCF causes enhanced chemosensitization and induces apoptosis. Substantially enhanced apoptotic activity of DOX (10-fold) in MDA-MB 231(DR) cells confirmed apoptotic potential of PEGCCF. Conclusively, PEGCCF nanomicelles are promising delivery systems for improving anticancer activity of DOX in TNBC, thereby reducing its side effects and may act as a potential carrier for other chemotherapeutic agents. PMID- 29019076 TI - Starting a Medical Technology Venture as a Young Academic Innovator or Student Entrepreneur. AB - Following the footprints of Bill Gates, Steve Jobs and Mark Zuckerberg, there has been a misconception that students are better off quitting their studies to bring to life their ideas, create jobs and monetize their inventions. Having historically transitioned from manpower to mind power, we live in one of the most rapidly changing times in human history. As a result, academic institutions that are supposed to be pioneers and educators of the next generations have started to realize that they need to adapt to a new system, and change their policies to be more flexible towards patent ownership and commercialization. There is an infrastructure being developed towards students starting their own businesses while continuing with their studies. This paper aims to provide an overview of the existing landscape, the exciting rewards as well as risks awaiting a student entrepreneur, the challenges of the present ecosystem, and questions to consider prior to embarking on such a journey. Various entities influencing the start-up environment are considered, specifically for the medical technology sector. These parties include but are not limited to: scientists, clinicians, investors, academic institutions and governments. A special focus will be set on the seemingly unbridgeable gap between founding a company and a scientific career. PMID- 29019078 TI - Chitosan-Zn Chelate Downregulates TLR4-NF-kappaB Signal Pathway of Inflammatory Response and Cell Death-Associated Proteins Compared to Inorganic Zinc. AB - The study was conducted to investigate the effect of chitosan-zinc chelate (CS Zn) on TLR4-NF-kappaB signaling pathway and cell death-associated proteins in a weanling pig model. A total of 90 weaned piglets were allotted to three dietary treatments (the dietary treatments were as follows: (1) experimental diet with supplemental ZnSO4 (150 mg Zn/kg diet), (2) experimental diet with supplemental CS-Zn (150 mg Zn/kg diet), and (3) experimental diet with a supplemental mixture of chitosan and ZnSO4 (150 mg/kg Zn; the content of chitosan was equal to CS-Zn, which is according to molar basis)). The feeding trial lasted 30 days. The results showed that compared with ZnSO4 or CS+ZnSO4, CS-Zn decreased the expressions of the cell death-associated proteins Beclin-1, and Cleaved-Caspase3 and the ratio of LC3II/LC3I. The intestinal expressions of TLR4 and its downstream signals NF-kappaB, IKKbeta, and IkappaBalpha were down-regulated simultaneously. Moreover, the contents of pro-inflammatory cytokines IL-2, TNF alpha, and IFN-gamma were decreased. The results indicated that as organic zinc source, CS-Zn was more effective than ZnSO4 and the mixture of chitosan and ZnSO4 for inhibiting inflammatory response and decreasing the expressions of proteins associated with cell death. The great anti-inflammatory effect of CS-Zn was modulated by inhibiting the TLR4-NF-kappaB signaling pathway, and the effect of CS-Zn on down-regulating the expression of cell death-associated proteins might also closely be associated with the TLR4-NF-kappaB signaling pathway. PMID- 29019077 TI - Halophilic viruses with varying biochemical and biophysical properties are amenable to purification with asymmetrical flow field-flow fractionation. AB - Viruses come in various shapes and sizes, and a number of viruses originate from extremities, e.g. high salinity or elevated temperature. One challenge for studying extreme viruses is to find efficient purification conditions where viruses maintain their infectivity. Asymmetrical flow field-flow fractionation (AF4) is a gentle native chromatography-like technique for size-based separation. It does not have solid stationary phase and the mobile phase composition is readily adjustable according to the sample needs. Due to the high separation power of specimens up to 50 um, AF4 is suitable for virus purification. Here, we applied AF4 for extremophilic viruses representing four morphotypes: lemon shaped, tailed and tailless icosahedral, as well as pleomorphic enveloped. AF4 was applied to input samples of different purity: crude supernatants of infected cultures, polyethylene glycol-precipitated viruses and viruses purified by ultracentrifugation. All four virus morphotypes were successfully purified by AF4. AF4 purification of culture supernatants or polyethylene glycol-precipitated viruses yielded high recoveries, and the purities were comparable to those obtained by the multistep ultracentrifugation purification methods. In addition, we also demonstrate that AF4 is a rapid monitoring tool for virus production in slowly growing host cells living in extreme conditions. PMID- 29019080 TI - Influence of the internal anatomy on the leakage of root canals filled with thermoplastic technique. AB - OBJECTIVES: The aim of this paper is to evaluate the influence of the internal anatomy on the leakage of root canals filled with the thermoplastic technique. MATERIALS AND METHODS: The upper central incisors (UCI) and mesial roots of the lower molars (MRLM) (n = 12 each) were tested regarding leakage using the gas enhanced permeation test (GEPT) after root filling. The quality of the root fillings was assessed using micro-computed tomography (MUCT) by superimposing scans before and after treatment to calculate unfilled volume. The calculated void volume was compared between the groups and correlated to the measured leakage values. Data were analyzed using t test and Pearson's correlation tests (p < 0.05). RESULTS: The mean void volume did not differ between UCI and MRLM (13.7 +/- 6.2% vs. 14.2 +/- 6.8%, respectively). However, significantly more leakage was evident in the MRLM (p < 0.001). While the leakage correlated highly to the void volume in the MRLM group (R 2 = 0.981, p < 0.001), no correlation was found in UCI (R 2 = 0.467, p = 0.126). CONCLUSION: MRLM showed higher leakage values, which correlated to the void volume in the root canal fillings. CLINICAL RELEVANCE: Care should always be taken while doing root canal treatments, but attention to teeth with known/expected complex root canal anatomy should be considered. PMID- 29019079 TI - Pharmacotherapy Choice Is Associated with 2-Year Mortality for Patients with Heart Failure and Reduced Ejection Fraction. AB - INTRODUCTION: Factors associated with mortality for patients with heart failure and reduced ejection fraction (HFrEF) are known; however, the association between initial pharmacotherapy (IPT) and mortality is unclear in real-world settings. METHODS: Using a retrospective design and claims database, 14,359 Medicare patients with HFrEF from August 2010 to July 2015 were identified. Index date was first HF claim. IPT was mono- or combo-angiotensin-converting enzyme inhibitor (ACEI), angiotensin II receptor blocker (ARB), beta-blocker (BB), hydralazine nitrate (HN), and aldosterone antagonist (AA) within 1 year post-index. A multivariable time-dependent Cox model estimated associations between IPT and 2 year all-cause mortality. RESULTS: Patients' median age was 76 (70-82) years; 45.1% were female. Within 1 month post-index, 61.4% had IPT, 6.1% started after the first month, and 32.4% had no IPT in the first year. Of IPTs, 47.5% were mono vasodilators (ACEI, ARB or HN), 23.3% mono-vasodilator + BB, 16.9% mono-BB, and 3.5% triple therapy [(ACEI or ARB) + BB + (HN or AA)]. Two-year mortality rate was 27.9%. Compared to mono-vasodilator therapy, patients initiating triple therapy had 29.3% lower risk of 2-year mortality; those on mono-BB or no IPT had higher mortality risk. CONCLUSION: IPT was associated with decreased 2-year mortality risk. Timely consideration of triple IPT therapies may be warranted once HFrEF diagnosis is confirmed. FUNDING: Novartis Pharmaceuticals Corp. located in East Hanover, NJ, USA. PMID- 29019081 TI - Modification of NK cell subset repartition and functions in granulocyte colony stimulating factor-mobilized leukapheresis after expansion with IL-15. AB - The ability of natural killer (NK) cells to kill tumor cells without antigen recognition makes them appealing as an adoptive immunotherapy. However, NK cells are not routinely used in the context of leukemic relapse after hematopoietic stem cell transplantation. Patients who experience relapse can be treated with donor lymphocyte infusions (DLI) based on small-cell fractions frozen at the time of transplantation. Since peripheral blood stem cells (PBSCs) are increasingly used as a stem cell source and as a source of cells for DLI, we aimed to evaluate the impact of G-SCF mobilization on NK cell phenotype, subset repartition, and functionality. Immunomagnetically isolated NK cells from healthy donor blood, donor PBSCs, and patient PBSCs were expanded for 14 days with IL-15. The expansion capacity, phenotype, and functions (cytokine secretion and cytotoxicity) of NK cell subsets based on CD56 and CD16 expression were then evaluated. Mobilized sources showed a significant decrease of CD56brightCD16+ NK cells (28 versus 74%), whereas a significant increase (64 versus 15%) of CD56brightCD16- NK cells was observed in comparison with peripheral blood. Patient-mobilized NK cells showed a significantly decreased cytotoxicity, and antibody-dependent cell cytototoxicity (ADCC) was also observed to a lesser extent in NK cells from healthy donor PBSC. G-CSF-mobilized NK cell TNF-alpha and IFN-gamma secretion was impaired at day 0 compared to healthy donors but was progressively restored after culture. In conclusion, expansion of NK cells from G CSF-mobilized sources may progressively improve their functionality. PMID- 29019082 TI - Loss of the nutrient sensor TAS1R3 leads to reduced bone resorption. AB - The taste receptor type 1 (TAS1R) family of heterotrimeric G protein-coupled receptors participates in monitoring energy and nutrient status. TAS1R member 3 (TAS1R3) is a bi-functional protein that recognizes amino acids such as L-glycine and L-glutamate or sweet molecules such as sucrose and fructose when dimerized with TAS1R member 1 (TAS1R1) or TAS1R member 2 (TAS1R2), respectively. It was recently reported that deletion of TAS1R3 expression in Tas1R3 mutant mice leads to increased cortical bone mass but the underlying cellular mechanism leading to this phenotype remains unclear. Here, we independently corroborate the increased thickness of cortical bone in femurs of 20-week-old male Tas1R3 mutant mice and confirm that Tas1R3 is expressed in the bone environment. Tas1R3 is expressed in undifferentiated bone marrow stromal cells (BMSCs) in vitro and its expression is maintained during BMP2-induced osteogenic differentiation. However, levels of the bone formation marker procollagen type I N-terminal propeptide (PINP) are unchanged in the serum of 20-week-old Tas1R3 mutant mice as compared to controls. In contrast, levels of the bone resorption marker collagen type I C-telopeptide are reduced greater than 60% in Tas1R3 mutant mice. Consistent with this, Tas1R3 and its putative signaling partner Tas1R2 are expressed in primary osteoclasts and their expression levels positively correlate with differentiation status. Collectively, these findings suggest that high bone mass in Tas1R3 mutant mice is due to uncoupled bone remodeling with reduced osteoclast function and provide rationale for future experiments examining the cell-type-dependent role for TAS1R family members in nutrient sensing in postnatal bone remodeling. PMID- 29019084 TI - A Flexible Bayesian Model for Estimating Subnational Mortality. AB - Reliable subnational mortality estimates are essential in the study of health inequalities within a country. One of the difficulties in producing such estimates is the presence of small populations among which the stochastic variation in death counts is relatively high, and thus the underlying mortality levels are unclear. We present a Bayesian hierarchical model to estimate mortality at the subnational level. The model builds on characteristic age patterns in mortality curves, which are constructed using principal components from a set of reference mortality curves. Information on mortality rates are pooled across geographic space and are smoothed over time. Testing of the model shows reasonable estimates and uncertainty levels when it is applied both to simulated data that mimic U.S. counties and to real data for French departements. The model estimates have direct applications to the study of subregional health patterns and disparities. PMID- 29019083 TI - Microbial Stability of Pharmaceutical and Cosmetic Products. AB - This review gives a brief overview about microbial contamination in pharmaceutical products. We discuss the distribution and potential sources of microorganisms in different areas, ranging from manufacturing sites, pharmacy stores, hospitals, to the post-market phase. We also discuss the factors that affect microbial contamination in popular dosage forms (e.g., tablets, sterile products, cosmetics). When these products are contaminated, the microorganisms can cause changes. The effects range from mild changes (e.g., discoloration, texture alteration) to severe effects (e.g., changes in activities, toxicity). The most common method for countering microbial contamination is the use of preservatives. We review some frequently used preservatives, and we describe the mechanisms by which microorganisms develop resistance to these preservatives. Finally, because preservatives are inherently toxic, we review the efforts of researchers to utilize water activity and other non-preservative approaches to combat microbial contamination. PMID- 29019086 TI - Family history influences the tumor characteristics and prognosis of breast cancers developing during postmenopausal hormone therapy. AB - Long term use of postmenopausal hormone therapy (HT) has been reported to increase breast cancer risk. On the other hand, observational studies suggest that breast cancers diagnosed during HT may have a more favorable prognosis. While family history is a risk factor for breast cancer, and genetic factors also influence prognosis, the role of family history in combination with HT use has been little studied. We investigated the relationship between HT, family history, and prognosis in 584 (267 exposed) familial and 952 (460 exposed) non-familial breast cancer cases, using three survival end points: death from breast cancer (BCS), distant disease free survival (DDFS), and local recurrence free survival (LRFS). Among non-familial cases, HT was associated with better BCS (HR 0.63, 95% CI 0.41-0.94; p = 0.025), and DDFS (HR 0.58, 95% CI 0.40-0.85; p = 0.005), with a consistent but not statistically significant effect in LRFS. This effect was not seen in familial cases (HR > 1.0), and family history was found to interact with HT in BCS (p(interaction) = 0.0067) (BC-death) and DDFS (p(interaction) = 0.0070). There was phenotypic heterogeneity between HT-associated tumors in familial and non-familial cases, particularly on estrogen receptor (ER) status, although the interaction between HT and family history appears to be at least partially independent of these markers (p = 0.0370 after adjustment for standard prognostic factors). If confirmed by further studies, our results suggest that family history should be taken into consideration in clinical counseling before beginning a HT regimen. PMID- 29019085 TI - The Arnon-Buchanan cycle: a retrospective, 1966-2016. AB - For the first decade following its description in 1954, the Calvin-Benson cycle was considered the sole pathway of autotrophic CO2 assimilation. In the early 1960s, experiments with fermentative bacteria uncovered reactions that challenged this concept. Ferredoxin was found to donate electrons directly for the reductive fixation of CO2 into alpha-keto acids via reactions considered irreversible. Thus, pyruvate and alpha-ketoglutarate could be synthesized from CO2, reduced ferredoxin and acetyl-CoA or succinyl-CoA, respectively. This work opened the door to the discovery that reduced ferredoxin could drive the Krebs citric acid cycle in reverse, converting the pathway from its historical role in carbohydrate breakdown to one fixing CO2. Originally uncovered in photosynthetic green sulfur bacteria, the Arnon-Buchanan cycle has since been divorced from light and shown to function in a variety of anaerobic chemoautotrophs. In this retrospective, colleagues who worked on the cycle at its inception in 1966 and those presently working in the field trace its development from a controversial reception to its present-day inclusion in textbooks. This pathway is now well established in major groups of chemoautotrophic bacteria, instead of the Calvin-Benson cycle, and is increasingly referred to as the Arnon-Buchanan cycle. In this retrospective, separate sections have been written by the authors indicated. Bob Buchanan wrote the abstract and the concluding comments. PMID- 29019087 TI - Influence of entomopathogenic fungus, Metarhizium anisopliae, alone and in combination with diatomaceous earth and thiamethoxam on mortality, progeny production, mycosis, and sporulation of the stored grain insect pests. AB - The stored grain insects cause great damage to grains under storage conditions. Synthetic insecticides and fumigants are considered as key measures to control these stored grain insect pests. However, the major issue with these chemicals is grain contamination with chemical residues and development of resistance by insect pests to these chemicals. Biological control is considered as a potential alternative to chemical control especially with the use of pathogens, alone or in combination with selective insecticides. The present study was conducted to evaluate the synergism of Metarhizium anisopliae with diatomaceous earth (DE) and thiamethoxam against four insect pests on the stored wheat grains. In the first bioassay, the M. anisopliae was applied at 1.4 * 104 and 1.4 * 106conidia/ml alone and in integration with two concentrations (250 and 500 ppm) of tested DE. The tested fungus when combined with DE and thiamethoxam possessed synergistic impact as compared to their individual efficacy. Adult mortality increased with respect to increased exposure interval and doses. In the second bioassay, M. anisopliae was applied at 1.4 * 104 conidia/ml individually and in combination with three concentrations (0.50, 0.75, and 1.00 ppm) of thiamethoxam. Results concluded that M. anisopliae integrated with DE and thiamethoxam provides more effective control of stored grain insect pests. PMID- 29019088 TI - Involvement of mitochondrial pathway in environmental metal pollutant lead induced apoptosis of chicken liver: perspectives from oxidative stress and energy metabolism. AB - This study aimed to investigate the possible mechanisms of environmental metal pollutant lead (Pb)-induced apoptosis in chicken. Forty 8-day-old healthy chickens were randomly assigned to two groups (n = 20/group) after raising standard commercial diet and drinking water for 1 week: including control group and Pb group ((CH3COO)2Pb 350 mg/L of drinking water); the chickens were given euthanasia and collected livers at 90 days. A significant increase of apoptosis rate were found in Pb group and Pb induced obvious ultrastructural changes of chicken liver. The mRNA levels of glycometabolism key enzymes were significantly lower in Pb group than those in controls. Higher levels of malondialdehyde (MDA) and nitric oxide (NO) were observed in Pb group; the activities of antioxidant enzymes and ATPases were significantly lower in Pb group than those in controls, while the inducible nitric oxide synthase (iNOS) activity was on the contrary. The mRNA and protein levels of pro-apoptotic genes were all lower in Pb group than those in controls. Altogether, Pb-induced mitochondrial swelling and nuclear chromatin condensation, oxidative stress, energy metabolism disorder, thereby lead to apoptosis via mitochondrial pathway in chicken liver, suggesting that Pb induced mitochondrial pathway apoptosis plays an important role in the mechanisms of Pb cytotoxicity to chicken liver. PMID- 29019090 TI - Resuscitation on the pitch. PMID- 29019089 TI - Exercise and the Cortisol Awakening Response: A Systematic Review. AB - BACKGROUND: The cortisol awakening response (CAR) has been used as a biomarker of stress response in a multitude of psychological investigations. While a myriad of biochemical responses have been proposed to monitor responses to exercise training, the use of CAR within the exercise and sports sciences is currently limited and is a potentially underutilized variable. Therefore, the purpose of this review was to collate studies that incorporate both exercise and CAR, in an effort to better understand (a) whether CAR is a useful marker for monitoring exercise stress and (b) how CAR may be most appropriately used in future research. METHODS: A systematic review of the literature was conducted, following PRISMA guidelines. Searches were conducted using PubMed, SportDISCUS, Scopus, and PsychInfo databases, using search terms related toCAR and exercise and physical activity. RESULTS: 10,292 articles were identified in the initial search, with 32 studies included in the final analysis. No studies investigated the effects of laboratory-controlled exercise on CAR. Variable effects were observed, possibly due to inconsistencies in study design, methodology, population, and CAR analysis. The available literature suggests a threshold of exercise may be required to alter the HPA axis and affect CAR. Moreover, CAR may represent a combination of previous exercise load and upcoming stress, making current interpretation of field-based observational research challenging. CONCLUSIONS: More research is needed to fully elucidate the influence of exercise on CAR and address a number of gaps in the literature, including controlling exercise load, consistent sample collection, and CAR calculation and analysis. PMID- 29019092 TI - Rapid Detection of Human Norovirus in Frozen Raspberries. AB - Raspberries have lately caused several human norovirus (HuNoV) outbreaks in Europe. In this study, we developed and evaluated for HuNoV reverse transcription (RT)-PCR detection in frozen raspberries extraction methods that have equal sensitivity but are less time-consuming than widely used methods based on polyethylene glycol (PEG) precipitation and chloroform-butanol purification. One method was applied to stored frozen raspberries linked to previous HuNoV outbreaks and berries on sale. In the virus elution-based Method 1, sparkling water eluted viruses most efficiently from the berries. Method 2, based on direct nucleic acid extraction with minor PEG supplement, yielded the highest number of positive findings (4 out of 9) at low virus concentration level of 100 genome copies HuNoV genogroup II per 25 g raspberries. Both methods showed approximately equal sensitivity to a method including PEG precipitation and chloroform-butanol purification. Two naturally contaminated berry samples linked to HuNoV outbreaks in 2006 and 2009 were still positive for HuNoV genogroup I, but all berry products purchased from a local store remained negative for HuNoV. In conclusion, this study presents two efficient and rapid methods which can be used in urgent HuNoV outbreak investigations, since the results of the virus analysis are available in a few hours. PMID- 29019091 TI - Preventive and Therapeutic Effects of Thymol in a Lipopolysaccharide-Induced Acute Lung Injury Mice Model. AB - Acute lung injury (ALI) is a life-threatening syndrome which causes a high mortality rate worldwide. In traditional medicine, lots of aromatic plants-such as some Thymus species-are used for treatment of various lung diseases including pertussis, bronchitis, and asthma. Thymol, one of the primary active constituent derived from Thymus vulgaris (thyme), has been reported to exhibit potent anti microbial, anti-oxidant, and anti-inflammatory activities in vivo and in vitro. The present study aims to investigate the protective effects of thymol in lipopolysaccharide (LPS)-induced lung injury mice model. In LPS-challenged mice, treatment with thymol (100 mg/kg) before or after LPS challenge significantly improved pathological changes in lung tissues. Thymol also inhibited the LPS induced inflammatory cells influx, TNF-alpha and IL-6 releases, and protein concentration in bronchoalveolar lavage fluid (BALF). Additionally, thymol markedly inhibited LPS-induced elevation of MDA and MPO levels, as well as reduction of SOD activity. Further study demonstrated that thymol effectively inhibited the NF-kappaB activation in the lung. Taken together, these results suggested that thymol might be useful in the therapy of acute lung injury. PMID- 29019093 TI - Triptans and CGRP blockade - impact on the cranial vasculature. AB - The trigeminovascular system plays a key role in the pathophysiology of migraine. The activation of the trigeminovascular system causes release of various neurotransmitters and neuropeptides, including serotonin and calcitonin gene related peptide (CGRP), which modulate pain transmission and vascular tone. Thirty years after discovery of agonists for serotonin 5-HT1B and 5-HT1D receptors (triptans) and less than fifteen after the proof of concept of the gepant class of CGRP receptor antagonists, we are still a long way from understanding their precise site and mode of action in migraine. The effect on cranial vasculature is relevant, because all specific anti-migraine drugs and migraine pharmacological triggers may act in perivascular space. This review reports the effects of triptans and CGRP blocking molecules on cranial vasculature in humans, focusing on their specific relevance to migraine treatment. PMID- 29019096 TI - Two-stage mixotrophic cultivation for enhancing the biomass and lipid productivity of Chlorella vulgaris. AB - This study proposes a two-stage mixotrophic process for cultivating Chlorella vulgaris. Heterotrophic growth is the dominant step in Phase I (to increase microalgal biomass) and photoautotrophic growth occurs in Phase II (to improve biomass concentration and lipid production). The results show that the addition of the low-cost antioxidant sodium erythorbate (8 g L-1) significantly accelerates the growth of microalgae in the first stage with air aeration. Furthermore, a higher CO2 fixation rate was obtained in the second stage (at least 344.32 mg CO2 L-1 day-1) with 10% CO2 aeration. This approximately corresponds to an increase of 177% over simple photoautotrophic cultivation with 10% CO2 aeration during the whole period. The two-stage cultivation strategy achieved a maximum C. vulgaris biomass concentration of 3.45 g L-1 and lipid productivity of 43.70 mg L-1 day-1, which are 1.85 and 1.64 times those arising due to simple photoautotrophy, respectively. Moreover, an analysis of the product's fatty acid profile indicates that C. vulgaris might be an ideal candidate for two-stage mixotrophic cultivation of a renewable biomass for use in biodiesel applications. Another interesting point to note from the study is that it is an insufficiency of N and CO2 that probably limits the further growth of C. vulgaris. PMID- 29019094 TI - Lipid droplet-associated gene expression and chromatin remodelling in LIPASE 5' upstream region from beginning- to mid-endodormant bud in 'Fuji' apple. AB - KEY MESSAGE: We found that lipid accumulation in the meristem region and the expression of MdLIP2A, which appears to be regulated by chromatin remodeling, coincided with endodormancy induction in the 'Fuji' apple. In deciduous trees, including apples (Malus * domestica Borkh.), lipid accumulation in the meristem region towards endodormancy induction has been thought to be an important process for the acquisition of cold tolerance. In this study, we conducted histological staining of crude lipids in the meristem region of 'Fuji' apples and found that lipid accumulation coincided with endodormancy induction. Since a major component of lipid bodies (triacylglycerol) is esterified fatty acids, we analysed fatty acid-derived volatile compounds and genes encoding fatty acid-modifying enzymes (MdLOX1A and MdHPL2A); the reduction of lipid breakdown also coincided with endodormancy induction. We then characterised the expression patterns of lipid body-regulatory genes MdOLE1 and MdLIP2A during endodormancy induction and found that the expression of MdLIP2A correlated well with lipid accumulation towards endodormancy induction. Based on these results, we conducted chromatin remodelling studies and localized the cis-element in the 5'-upstream region of MdLIP2A to clarify its regulatory mechanism. Finally, we revealed that chromatin was concentrated - 764 to - 862 bp of the 5'-upstream region of MdLIP2A, which harbours the GARE [gibberellin responsive MYB transcription factor binding site] and CArG [MADS-box transcription factor binding site] motifs-meristem development related protein-binding sites. PMID- 29019097 TI - Efficacy of Conventional and Liposomal Povidone-Iodine in Infected Mesh Skin Grafts: An Exploratory Study. AB - INTRODUCTION: Infection is a major threat to wound healing and a leading cause of graft loss in patients undergoing meshed skin grafts (MSGs). Therefore, topical antisepsis is important in the overall treatment scheme. METHODS: An exploratory satellite group of 14 patients with infected MSGs were enrolled as part of a prospective, randomized, controlled, parallel-group, open-label, pilot Phase II study that investigated the efficacy and tolerability of 3% liposomal povidone iodine hydrogel (PVP-ILH, Repithel(r); RepiGel(r)) versus chlorhexidine gauze in non-infected MSGs. The satellite group included both patients with infected wound beds prior to grafting and patients with infection of a previously placed graft, with MSG sizes ranging from 50 to 1000 cm2, who were randomized to treatment with (PVP-ILH) or 10% povidone-iodine ointment (Betaisodona(r); BETADINE(r)). Medication was applied in a 2-mm layer and dressing changes with identical application of study medication took place daily. Wounds were evaluated by photoplanimetry, microbiologically and subjectively by patients and physicians. RESULTS: The results for the main study group have been reported previously. In the satellite group, both PVP-ILH and povidone-iodine ointment performed remarkably well with respect to lowering the bacterial count and restoring wound healing, with different emphasis. Povidone-iodine ointment showed excellent antibacterial efficacy with no detectable microorganisms by Day 10, and rapid re epithelialization (mean 90% by Day 6). PVP-ILH also demonstrated rapid re epithelialization (mean 72% by Day 6) with a trend towards improved subjective measures of wound healing quality. Four patients (40%) receiving PVP-ILH experienced partial graft loss (10-15% of total MSG area); no patients in the povidone-iodine ointment group experienced graft loss. CONCLUSION: Our results suggest that povidone-iodine ointment has a strong role in managing infected wounds, especially when a high concentration of povidone-iodine may be warranted, while PVP-ILH indicated similar beneficial results on markers of wound healing quality in larger infected wounds. TRIAL REGISTRATION: The trial was conducted prior to mandatory registration of drug products, PVP-ILH represents a medicated device in the EU and many other countries. FUNDING: Mundipharma Research GmbH & Co. KG. PMID- 29019095 TI - Cost-effectiveness of surveillance and prevention strategies in BRCA1/2 mutation carriers. AB - BACKGROUND: Cost-effectiveness analysis is an important aspect of healthcare, including in Japan, where preventive measures for BRCA1/2 mutation carriers are not covered by health insurance. METHODS: We developed Markov models in a simulated cohort of women aged 35-70 years, and compared outcomes of surveillance with risk-reducing mastectomy (RRM) at age 35, risk-reducing salpingo oophorectomy (RRSO) at age 45, and both (RRM&RRSO). We used breast and ovarian cancer incidences and adverse event rates from the previous studies, adjuvant chemotherapy, and hormonal therapy rates from the Hereditary Breast and Ovarian Cancer Registration 2015 in Japan, mortality rates from the National Cancer Center Hospital, Japan Society of Clinical Oncology, and Ministry of Health, Labour and Welfare, and direct costs from St. Luke's International Hospital and Keio University Hospital. We used previously published preference ratings of women without known high risk to adjust survival for quality of life. The discount rate was 2%. RESULTS: Compared with surveillance, RRSO and RRM&RRSO were dominant (both cost-saving and more effective), and RRM was cost-effective in BRCA1 mutation carriers, while RRM and RRM&RRSO were dominant and RRSO was cost effective in BRCA2. Among the four strategies including surveillance, RRM&RRSO and RRM were the most cost-effective in BRCA1 and BRCA2 mutation carriers, respectively. CONCLUSIONS: With quality adjustment, RRM, RRSO, and RRM&RRSO were all cost-effective preventive strategies in BRCA1/2 mutation carriers, with RRM&RRSO being the most cost-effective in BRCA1 and RRM in BRCA2. This result supports the inclusion of insurance coverage for BRCA mutation carriers in Japan. PMID- 29019098 TI - Gallstone ileus: monocentric experience looking for the adequate approach. AB - Common complications of biliary lithiasis are cholecystitis, bile duct lithiasis, and acute biliary pancreatitis. Gallstone ileus is uncommon complications often requiring surgical approach. It is a mechanical bowel obstruction caused by a biliary calculus usually originating from a bilioenteric fistula. Because of the limited number of reported cases, the optimal surgical method of treatment has been the subject of ongoing debate. A retrospective, observational, descriptive study was conduct on patients diagnosed with non-neoplastic bowel occlusion. For each case of gallstone ileus, the following variables were revised: personal and clinical data, mean time of onset of symptoms, length of pre- and postoperative stay, imaging studies, biochemical tests, site of the bilioenteric fistula and occlusion, surgical strategy, postoperative course, follow-up, and mortality. Of the 290 cases of non-neoplastic bowel obstruction from 2008 to 2015, 11 (3.7%) were due to gallstone ileus. The majority of patients were elderly women (F 9/M 2) with high average age (82.4; 76-88) and significant comorbidities. Five cases of small-bowel occlusions were treated with solely enterolithotomy. For the remaining six cases, digestive resection and cholecystectomy were performed. Complications rate (20 vs. 80%) and postoperative stay (12.4 vs. 25.3 days) were lower in the group of enterolithotomy with respect to the group treated with other procedures. In-hospital mortality was nil. Gallstone ileus is an uncommon bowel occlusion affecting mainly the elderly female population. Enterotomy with stone extraction alone is associated with better outcomes than more invasive techniques. PMID- 29019099 TI - Formulation and Pharmacokinetics of HSA-core and PLGA-shell Nanoparticles for Delivering Gemcitabine. AB - Gemcitabine-loaded core-shell nanoparticles (CSNPs), comprised of a cross-linked HSA-core and PLGA-shell, were prepared through a modified double emulsification method, and the processing parameters were systematically investigated. The optimized CSNPs had a particle size of 241 +/- 36.2 nm and an encapsulation efficiency of 41.52%. The core-shell structure was characterized by optical microscope (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The amorphous nature of the encapsulated drug was confirmed by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). An in vitro release study demonstrated that the CSNPs had an improved sustained release profile controlled by erosion of materials in combination with drug diffusion. In vivo pharmacokinetics of CSNPs obtained a bigger area under concentration-time curve (AUC), t 1/2, and C max compared to free drug solution. The results suggest that HSA-PLGA-based CSNPs can be a promising carrier for the sustained release of gemcitabine. PMID- 29019101 TI - Oxytocin and Human Sensitive and Protective Parenting. AB - In this chapter we review the evidence for the role of oxytocin in parenting, and discuss some crucial but outstanding questions. This is not meant to be a comprehensive review of all studies on oxytocin and parenting in general. Instead, special attention will be paid to a dimension of parenting that has been largely neglected in behavioral and neurobiological research on parental caregiving, namely protection. Parental protection has received considerable attention in animal research but, despite its evolutionary importance, not in studies on humans. It is argued that oxytocin may have specific significance for the protective dimension of parenting. The effects of exogenous oxytocin may be dependent not only on contextual factors, but also on personal characteristics, most notably gender, on endogenous levels of oxytocin, and on early childhood experiences. Examining the contextual, personal, hormonal, neural, genetic, and behavioral mechanisms of protective parenting in tandem is essential for the development of a comprehensive theory of protective parenting, and for the identification of "biomarkers" for insensitive and unprotective parenting that should be taken into account in preventive parenting interventions. PMID- 29019100 TI - Oxytocin and Social Cognition. AB - Oxytocin has been linked to many domains within the realm of "social cognition." For example, research has shown that oxytocin affects trusting behavior, cooperation, as well as the perception and processing of facial expressions. Furthermore, oxytocin increases empathy and seems to exert differential effects on in-group versus out-group preferences. However, there are some conflicting results that point towards a modulatory effect of oxytocin, depending on a variety of contextual and within-subject factors. Research about the underlying mechanisms (e.g., neural circuits and genetics) indicates that the modulation of amygdala activity by oxytocin is elementary for the understanding of social cognitive processes. As regards genetics, several variants of the oxytocin receptor gene (OXTR) have been extensively studied in relation to social cognition. Taken together, oxytocin is an important modulator of social cognitive processes, although substantially more research is needed in order to understand the complexity of oxytocinergic effects on social perception, cognition, and interpersonal behavior. PMID- 29019102 TI - Calcium-sensing receptor polymorphisms increase the risk of osteoporosis in ageing males. PMID- 29019103 TI - Tip of the Tongue States Increase Under Evaluative Observation. AB - We tested the frequent assumption that the difficulty of word retrieval increases when a speaker is being observed and evaluated. We modified the Trier Social Stress Test (TSST) so that participants believed that its evaluative observation components continued throughout the duration of a subsequent word retrieval task, and measured participants' reported tip of the tongue (TOT) states. Participants in this TSST condition experienced more TOTs than participants in a comparable, placebo TSST condition in which there was no suggestion of evaluative observation. This experiment provides initial evidence confirming the assumption that evaluative observation by a third party can be disruptive to word retrieval. We interpret our findings by proposing an extension to a well-supported theoretical model of TOTs. PMID- 29019104 TI - The Effect of Boron on Some Biochemical Parameters in Experimental Diabetic Rats. AB - In this study, we evaluated the effect of boron (B) as boric acid (BA) on body weight (b.w.); blood glucose; plasma insulin; lipase and paraoxonase (PON1) activities; and serum triglyceride, total cholesterol, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol, lipid peroxidation (MDA), and total antioxidant capacity (TAC) in streptozotocin (STZ)-induced experimental diabetes in rats. Sixty Wistar albino rats (200-250 g) were divided into six groups of ten. The groups received the following treatment: group 1, control group; group 2, 50 mg/kg (b.w.) i.p. STZ-induced diabetes; group 3, 5 mg/kg (b.w.) B; group 4, 10 mg/kg (b.w.) B; group 5, diabetes + 5 mg/kg (b.w.) B; and group 6, diabetes + 10 mg/kg (b.w.) B. The experiment lasted 4 weeks. Increased serum MDA levels with diabetes were significantly reduced and although it is not statistically significant, serum TAC levels approached to values of control group; also, insignificant increases were observed in HDL cholesterol levels in experimental diabetic rats with treatment 5 and 10 mg/kg B. Furthermore, body weight, plasma insulin, and lipase activities increased insignificantly, blood glucose and serum LDL cholesterol decreased significantly, and total cholesterol levels decreased insignificantly in the diabetes + 10 mg/kg B group. There was no difference between the groups in terms of plasma PON1 activities and serum triglyceride levels. In conclusion, B may have beneficial effects on some biochemical parameters changes in experimental diabetes, and in order to determine the full effect of this element on the metabolism, further studies are required which use various dosages and compounds of B. PMID- 29019105 TI - Symmetries Constrain Dynamics in a Family of Balanced Neural Networks. AB - We examine a family of random firing-rate neural networks in which we enforce the neurobiological constraint of Dale's Law-each neuron makes either excitatory or inhibitory connections onto its post-synaptic targets. We find that this constrained system may be described as a perturbation from a system with nontrivial symmetries. We analyze the symmetric system using the tools of equivariant bifurcation theory and demonstrate that the symmetry-implied structures remain evident in the perturbed system. In comparison, spectral characteristics of the network coupling matrix are relatively uninformative about the behavior of the constrained system. PMID- 29019107 TI - Erratum to: Durvalumab: First Global Approval. PMID- 29019106 TI - Antimicrobial Properties of Perfusate Fluid After Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy (CS-HIPEC) with Mitomycin C. AB - BACKGROUND: Infectious postoperative complications often delay systemic chemotherapy after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CS-HIPEC). Because the authors have empirically observed fewer incisional infectious complications than expected after CS-HIPEC with mitomycin C (MMC), they investigated the antimicrobial properties of HIPEC perfusate fluid. METHODS: This study prospectively measured in vitro bacterial growth inhibition by HIPEC perfusate (n = 18). After 10 uL of perfusate had been plated on agar plate inoculated by standard strains of either Escherichia coli (strain 25922) or Staphylococcus aureus (strain 25923), it was incubated at 37 degrees C for 24 h. Antimicrobial activity evidenced by a zone of complete growth inhibition was measured in millimeters. These were compared against growth inhibition produced by control groups represented by MMC solution in normal saline (MMC concentrations of 2, 4, 6, 8, and 8.75 ug/mL), 7 per group. RESULTS: Bacterial inhibition by HIPEC perfusate was stronger against E. coli than against S. aureus (13.1 +/- 6.8 vs 8.3 +/- 7.7 mm; p = 0.005). No E. coli inhibition was observed for MMC saline in concentrations of 2 through 8 ug/mL (p < 0.001 each), and inhibition of 4.5 +/- 5.7 mm was observed for an MMC saline concentration of 8.75 ug/mL (p = 0.007). The S. aureus inhibition zones by MMC saline solutions were 2.2 +/- 2.1 (p = 0.002), 5.1 +/- 2.3 (p = 0.135), 7.5 +/- 1.0 (p = 0.654), 9.6 +/ 0.9 (p = 0.058), and 10.2 +/- 0.4 mm (p = 0.021). CONCLUSION: The antimicrobial properties of HIPEC perfusate are considerable but variable between patients and stronger against E. coli than against S. aureus. Further studies of HIPEC carrier solutions and chemotherapy agents may result in reduction of surgical-site infection and thus enhanced patient recovery. PMID- 29019108 TI - Molecular modeling elucidates the cellular mechanism of synaptotagmin-SNARE inhibition: a novel plausible route to anti-wrinkle activity of botox-like cosmetic active molecules. AB - Synaptotagmin 1 (Syt1) is the Ca2+ sensor protein with an essential role in neurotransmitter release. Since the wrinkle formation is due to the excessive muscle fiber stimulation in the face, a helpful stratagem to diminish the wrinkle line intenseness is to weaken the innervating neuron activity through Syt1 inhibition which is one of the possible therapeutic strategies against wrinkles. Recently, experimental evidence showed that botox-like peptides, which are typically used as SNARE modulators, may inhibit Syt1. In this work, we applied molecular modeling to (1) characterize the structural framework and (2) define the atomistic information of the factors for the inhibition mechanism. The modeling identified the plausible binding cleft able to efficiently bind all botox-like peptides. The MD simulations revealed that all peptides induced significant Syt1 rigidity by binding in the cleft of the C2A-C2B interface. The consequence of this binding event is the suppression of the protein motion associated with conformational change of Syt1 from the closed form to the open form. On this basis, this finding may therefore be of subservience for the advancement of novel botox-like molecules for the therapeutic treatment of wrinkle, targeting and modulating the function of Syt1. PMID- 29019109 TI - Automatic delineation of functional lung volumes with 68Ga-ventilation/perfusion PET/CT. AB - BACKGROUND: Functional volumes computed from 68Ga-ventilation/perfusion (V/Q) PET/CT, which we have shown to correlate with pulmonary function test parameters (PFTs), have potential diagnostic utility in a variety of clinical applications, including radiotherapy planning. An automatic segmentation method would facilitate delineation of such volumes. The aim of this study was to develop an automated threshold-based approach to delineate functional volumes that best correlates with manual delineation. Thirty lung cancer patients undergoing both V/Q PET/CT and PFTs were analyzed. Images were acquired following inhalation of Galligas and, subsequently, intravenous administration of 68Ga-macroaggreted albumin (MAA). Using visually defined manual contours as the reference standard, various cutoff values, expressed as a percentage of the maximal pixel value, were applied. The average volume difference and Dice similarity coefficient (DSC) were calculated, measuring the similarity of the automatic segmentation and the reference standard. Pearson's correlation was also calculated to compare automated volumes with manual volumes, and automated volumes optimized to PFT indices. RESULTS: For ventilation volumes, mean volume difference was lowest (- 0.4%) using a 15%max threshold with Pearson's coefficient of 0.71. Applying this cutoff, median DSC was 0.93 (0.87-0.95). Nevertheless, limits of agreement in volume differences were large (- 31.0 and 30.2%) with differences ranging from - 40.4 to + 33.0%. For perfusion volumes, mean volume difference was lowest and Pearson's coefficient was highest using a 15%max threshold (3.3% and 0.81, respectively). Applying this cutoff, median DSC was 0.93 (0.88-0.93). Nevertheless, limits of agreement were again large (- 21.1 and 27.8%) with volume differences ranging from - 18.6 to + 35.5%. Using the 15%max threshold, moderate correlation was demonstrated with FEV1/FVC (r = 0.48 and r = 0.46 for ventilation and perfusion images, respectively). No correlation was found between other PFT indices. CONCLUSIONS: To automatically delineate functional volumes with 68Ga-V/Q PET/CT, the most appropriate cutoff was 15%max for both ventilation and perfusion images. However, using this unique threshold systematically provided unacceptable variability compared to the reference volume and relatively poor correlation with PFT parameters. Accordingly, a visually adapted semi-automatic method is favored, enabling rapid and quantitative delineation of lung functional volumes with 68Ga V/Q PET/CT. PMID- 29019112 TI - Methodology in Aristotle's Theory of Spontaneous Generation. AB - Aristotle's theory of spontaneous generation offers many puzzles to those who wish to understand his theory both within the context of his biology and within the context of his more general philosophy of nature. In this paper, I approach the difficult and vague elements of Aristotle's account of spontaneous generation not as weaknesses, but as opportunities for an interesting glimpse into the thought of an early scientist struggling to reconcile evidence and theory. The paper has two goals: (1) to give as charitable and full an account as possible of what Aristotle's theory of spontaneous generation was, and to examine some of its consequences; and (2) to reflect on Aristotle as a scientist, and what his comments reveal about how he approached a difficult problem. In particular, I propose that the well-recognized problem of the incompatibility between Aristotle's concept of spontaneity and his theory of spontaneous generation presents an opportunity for insight into his scientific methodology when approaching ill-understood phenomena. PMID- 29019110 TI - Long-term laboratory culture causes contrasting shifts in tolerance to two marine pollutants in copepods of the genus Tigriopus. AB - Organismal chemical tolerance is often used to assess ecological risk and monitor water quality, yet tolerance can differ between field- and lab-raised organisms. In this study, we examined how tolerance to copper (Cu) and tributyltin oxide (TBTO) in two species of marine copepods, Tigriopus japonicus and T. californicus, changed across generations under benign laboratory culture (in the absence of pre-exposure to chemicals). Both copepod species exhibited similar chemical-specific changes in tolerance, with laboratory maintenance resulting in increased Cu tolerance and decreased TBTO tolerance. To assess potential factors underlying these patterns, chemical tolerance was measured in conjunction with candidate environmental variables (temperature, UV radiation, diet type, and starvation). The largest chemical-specific effect was found for starvation, which decreased TBTO tolerance but had no effect on Cu tolerance. Understanding how chemical-specific tolerance can change in the laboratory will be critical in strengthening bioassays and their applications for environmental protection and chemical management. PMID- 29019111 TI - Institutional Experience with Ostomies Created During Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemoperfusion. AB - BACKGROUND: Cytoreductive surgery and hyperthermic intraperitoneal chemoperfusion (CRS-HIPEC) is a complex procedure that often requires ostomy creation to protect high-risk anastomoses. This study aimed to evaluate the authors' institutional experience with CRS-HIPEC-associated ostomies, determine predictors of ostomy creation and reversal, and assess their impact on survival. METHODS: The study analyzed clinicopathologic, perioperative, and oncologic data from a prospective database of 1435 CRS-HIPEC procedures for peritoneal metastases. The Kaplan-Meier method was used to estimate survival. Multivariate analyses identified associations with ostomy creation/reversal and survival. RESULTS: Ostomies were created in 34% of the patients, most commonly loop ileostomies (82%). Loop ileostomies were reversed in the majority of patients (83%), whereas non-loop ileostomies were infrequently reversed (< 10% reversal rate). In a multivariate logistic regression model, intermediate or high tumor grade, colectomy/proctectomy, longer operative time, and lower Charlson comorbidity index were associated with loop ileostomy creation, whereas incomplete macroscopic resection, colorectal histology, and major postoperative complications were associated with non-reversal of loop ileostomy. In a multivariate Cox proportional hazards model, intermediate or high tumor grade and non-reversal of loop ileostomy were associated with worse overall survival. CONCLUSIONS: Loop ileostomies were almost always reversed, whereas non-loop ileostomies were almost always permanent. Hospital readmissions for loop ileostomy-related complications were common. Therefore, formal outpatient protocols for prevention and management should be implemented. Non-reversal of loop ileostomy was associated with very poor survival. PMID- 29019114 TI - Looking Toward the Next Fifty Years at the Journal of the History of Biology. PMID- 29019115 TI - What Do Final Year Medical Students Understand by the Concept of Recovery? A Descriptive Qualitative Study. AB - OBJECTIVE: Traditional teaching in psychiatry does little to address recovery concepts. The aim of this study was to evaluate the incorporation of a recovery focused teaching program for medical students in psychiatry. METHODS: Recovery, as understood by medical students who had participated in a recovery-focused teaching program, was assessed by thematic analysis of recovery-focused assessment reflections. RESULTS: Six major themes emerged from the recovery reflections from final year medical students are as follows: (1) recovery as a person-centered approach, (2) the need for social integration, (3) non-diagnostic framing of mental illness, (4) tensions between the medical model and personal recovery, (5) a patient's willingness to engage with mental health services, and (6) the development of a positive sense of self. CONCLUSIONS: A recovery teaching program was associated with students expressing knowledge of recovery principles and positive attitudes towards people with experience of mental illness. Psychiatric placements for medical students may benefit from a recovery focus. PMID- 29019116 TI - Bulk Freeze-Drying Milling: a Versatile Method of Developing Highly Porous Cushioning Excipients for Compacted Multiple-Unit Pellet Systems (MUPS). AB - The compaction of multiple-unit pellet system (MUPS) is a challenging process due to the ease of coat damage under high compression pressure, thereby altering drug release rates. To overcome this, cushioning excipients are added to the tablet formulation. Excipients can be processed into pellets/granules and freeze-dried to increase their porosity and cushioning performance. However, successful formation of pellets/granules has specific requirements that limit formulation flexibility. In this study, a novel top-down approach that harnessed bulk freeze drying milling was explored to avoid the challenges of pelletization/granulation. Aqueous dispersions containing 20%, w/w hydroxypropyl methylcellulose (HPMC), partially pregelatinised starch or polyvinylpyrrolidone alone, and with lactose (Lac) in 1:1 ratio, were freeze-dried and then milled to obtain particulate excipients for characterization and evaluation of their cushioning performance. This study demonstrated that bulk freeze-drying milling is a versatile method for developing excipients that are porous and directly compressible. The freeze drying process modified the materials in a unique manner which could impart cushioning properties. Compared to unprocessed excipients, the freeze-dried products generally exhibited better cushioning effects. The drug release profile of drug-loaded pellets compacted with freeze-dried Lac-HPMC excipients was similar to that of the uncompacted drug-loaded pellets (f 2 value = 51.7), indicating excellent cushioning effects. It was proposed that the specific balance of brittle and plastic nature of the freeze-dried Lac-HPMC composite conferred greater protective effect to the drug-loaded pellets, making it advantageous as a cushioning excipient. PMID- 29019119 TI - "Total Mesenteric Peritonectomy for Peritoneal Metastases" (with Video) by Jean Baptiste Cazauran et al. PMID- 29019118 TI - Frailty Correlates with Postoperative Mortality and Major Morbidity After Cytoreductive Surgery with Hyperthermic Intraperitoneal Chemotherapy. AB - BACKGROUND: Frailty is increasingly being recognized as a powerful predictor of postoperative outcomes for cancer patients. This study examined the role of the modified frailty index (MFI) in predicting outcomes for patients undergoing cytoreduction (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC). METHODS: Data from National Surgical Quality Improvement Program (NSQIP) patients who underwent CRS/HIPEC between 2005 and 2014 were reviewed. The MFI, validated for use in NSQIP, was used to determine correlation between frailty and postoperative outcomes. RESULTS: The analysis included 1171 patients. The patients were divided into three groups: non-frail (MFI 0), mildly frail (MFI 1 or 2), or severely frail (MFI >= 3). More than 90% of patients had an MFI of 0 or 1. The MFI was 0 for 716 patients (61.1%), 1 for 373 patients (31.9%), 2 for 76 patients (6.5%), 3 for 5 patients (0.4%), and 4 for 1 patient (0.1%). Overall, grade 4 Clavien morbidity was observed in 99 patients (8.5%) and mortality in 26 patients (2.2%). For non-frail, mildly frail, and severely frail patients, worsening frailty correlated respectively with increases in grade 4 Clavien morbidity (6.7% vs. 10.9% vs. 33.3%; p = 0.004) and mortality (1.3% vs. 3.3% vs. 33.3%; p < 0.001). In the multivariate analysis, which included age of 70 years or older and albumin level of 3 or lower, frailty was the only factor that correlated with postoperative mortality: non-frail:reference, mildly frail [odds ratio (OR) 2.76, 95% confidence interval (CI) 1.14-6.73; p = 0.025], severely frail (OR 29.1, 95% CI 4-210.87; p = 0.01), age of 70 years or older (OR 1.16, 95% CI 0.34-3.93; p = 0.81), and albumin level of 3 or lower (OR 2.42, 95% CI 0.84-6.98; p = 0.1). CONCLUSIONS: Frailty is a strong predictor of major grade 4 morbidity and mortality after CRS/HIPEC. Severe frailty should be a relative contraindication to CRS/HIPEC. Frailty correlates should be a selection factor in the evaluation of all candidates for CRS/HIPEC. PMID- 29019120 TI - Two-Dimensional Gel Electrophoresis and 2D-DIGE. AB - Two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) continues to be one of the most versatile and widely used techniques to study the proteome of a biological system. In particular, a modified version of 2D-PAGE, two-dimensional difference gel electrophoresis (2D-DIGE), which uses differential labeling of protein samples with up to three fluorescent tags, offers greater sensitivity and reproducibility over conventional 2D-PAGE gels for differential quantitative analysis of protein expression between experimental groups. Both these methods have distinct advantages in the separation and identification of thousands of individual proteins species including protein isoforms and post-translational modifications. This review will discuss the principles of 2D-PAGE and 2D-DIGE including limitations to the methods. 2D-PAGE and 2D-DIGE continue to be popular methods in bioprocessing-related research (particularly on recombinant Chinese hamster ovary cells), which will also be discussed in the review chapter. PMID- 29019121 TI - Comparative DIGE Proteomics. AB - Gel-based proteomics has been widely used for the systematic cataloging of the protein constituents of defined biofluids, purified organelles, individual cell types, heterogeneous tissues and isolated organs, as well as being applied to comparative biochemical and biomedical analyses of complex biological specimens. Of the many electrophoretic techniques used in modern biochemical approaches, large-scale protein separation by difference gel electrophoresis (DIGE) has established itself as the most powerful analytical tool in comparative proteomics. Both 2-dye and 3-dye fluorescence systems with minimal or saturation labeling are routinely used. This chapter briefly describes the technical advantages of the pre-electrophoretic fluorescent labeling technique and discusses the bioanalytical usefulness of this highly successful electrophoretic method. PMID- 29019122 TI - 2D-DIGE and Fluorescence Image Analysis. AB - 2D-DIGE is still a very widespread technique in proteomics for the identification of panels of biomarkers, allowing to tackle with some important drawback of classical two-dimensional gel-electrophoresis. However, once 2D-gels are obtained, they must undergo a quite articulated multistep image analysis procedure before the final differential analysis via statistical mono- and multivariate methods. Here, the main steps of image analysis software are described and the most recent procedures reported in the literature are briefly presented. PMID- 29019117 TI - Physiologically Based Pharmacokinetic Modeling of Transporter-Mediated Hepatic Clearance and Liver Partitioning of OATP and OCT Substrates in Cynomolgus Monkeys. AB - In the present investigations, we evaluate in vitro hepatocyte uptake and partitioning for the prediction of in vivo clearance and liver partitioning. Monkeys were intravenously co-dosed with rosuvastatin and bosentan, substrates of the organic anion transporting polypeptides (OATPs), and metformin, a substrate of organic cation transporter 1 (OCT1). Serial plasma and liver samples were collected over time. Liver and plasma unbound fraction was determined using equilibrium dialysis. In vivo unbound partitioning (Kpu,u) for rosuvastatin, bosentan, and metformin, calculated from total concentrations in the liver and plasma, were 243, 553, and 15, respectively. A physiologically based pharmacokinetic monkey model that incorporates active and passive hepatic uptake was developed to fit plasma and liver concentrations. In addition, a two compartment model was used to fit in vitro hepatic uptake curves in suspended monkey hepatocyte to determine active uptake, passive diffusion, and intracellular unbound fraction parameters. At steady-state in the model, in vitro Kpu,u was determined. The results demonstrated that in vitro values under predicted in vivo active uptake for rosuvastatin, bosentan, and metformin by 6.7 , 28-, and 1.5-fold, respectively, while passive diffusion was over-predicted. In vivo Kpu,u values were under-predicted from in vitro data by 30-, 79-, and 3 fold. In conclusion, active uptake and liver partitioning in monkeys for OATP substrates were greatly under-predicted from in vitro hepatocyte uptake, while OCT-mediated uptake and partitioning scaled reasonably well from in vitro, demonstrating substrate- and transporter-dependent scaling factors. The combination of in vitro experimental and modeling approaches proved useful for assessing prediction of in vivo intracellular partitioning. PMID- 29019123 TI - DIGE Analysis Software and Protein Identification Approaches. AB - DIGE is a high-resolution two-dimensional gel electrophoresis method, with excellent dynamic range obtained by fluorescent tag labeling of protein samples. Scanned images of DIGE gels show thousands of protein spots, each spot representing a single or a group of protein isoforms. By using commercially available software, each protein spot is defined by an outline, which is digitized and correlated with the quantity of proteins present in each spot. Software packages include DeCyder, SameSpots, and Dymension 3. In addition, proteins of interest can be excised from post-stained gels and identified with conventional mass spectrometry techniques. High-throughput mass spectrometry is performed using sophisticated instrumentation including matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF), MALDI-TOF/TOF, and liquid chromatography tandem mass spectrometry (LC-MS/MS). Tandem MS (MALDI-TOF/TOF or LC-MS/MS), analyzes fragmented peptides, resulting in amino acid sequence information, especially useful when protein spots are low abundant or where a mixture of proteins is present. PMID- 29019124 TI - Native DIGE: Efficient Tool to Elucidate Protein Interactomes. AB - Protein-protein interactions and multi-protein assemblies are inherent features of proteomes, involving soluble and membrane proteins. This imparts structural and functional heterogeneity to the proteome. One needs to consider this aspect while studying changes in abundance or activities of proteins in response to any physiological stimulus. Abundance changes in components of a given proteome can be best visualized and quantified using electrophoresis-based approaches. Here, we describe the method of Blue Native Difference Gel Electrophoresis (BN DIGE) to quantify abundance changes in proteins in the context of protein-protein interactions. This method confers an additional advantage to monitor quantitative changes in membrane proteins, which otherwise is a difficult task. PMID- 29019125 TI - Comparative Two-Dimensional Fluorescence Gel Electrophoresis. AB - Two-dimensional comparative fluorescence gel electrophoresis (CoFGE) uses an internal standard to increase the reproducibility of coordinate assignment for protein spots visualized on 2D polyacrylamide gels. This is particularly important for samples, which need to be compared without the availability of replicates and thus cannot be studied using differential gel electrophoresis (DIGE). CoFGE corrects for gel-to-gel variability by co-running with the sample proteome a standardized marker grid of 80-100 nodes, which is formed by a set of purified proteins. Differentiation of reference and analyte is possible by the use of two fluorescent dyes. Variations in the y-dimension (molecular weight) are corrected by the marker grid. For the optional control of the x-dimension (pI), azo dyes can be used. Experiments are possible in both vertical and horizontal (h) electrophoresis devices, but hCoFGE is much easier to perform. For data analysis, commercial software capable of warping can be adapted. PMID- 29019126 TI - DIGE-Based Phosphoproteomic Analysis. AB - Here, we describe the detailed step-by-step protocol for detection of phosphoproteins in two-dimensional difference gel electrophoresis (DIGE) gels. A standard DIGE protocol is combined with subsequent post-staining with phosphospecific fluorescent dye. The combination of these two methods complements DIGE-based proteome profiling by fluorescence detection of phosphoproteins in the same gel providing additional possibility for sensitive and accurate quantification of the differentially regulated phosphoproteins in biological samples. PMID- 29019127 TI - DIGE Saturation Labeling for Scarce Amounts of Protein from Formalin-Fixed Paraffin-Embedded (FFPE) Tissue. AB - In this chapter, we describe the utility of difference gel electrophoresis (DIGE) as a proteomics platform for the global detection of expressed proteins in formalin-fixed paraffin-embedded (FFPE) tissues and its use for biomarker discovery/identification of proteins that may contribute to cancer development and progression. Formalin fixation and paraffin embedding of tissue is the standard processing methodology practiced in pathology laboratories worldwide, resulting in a highly stable form of tissue that is easily stored due to its inherent stability at room temperature. Consequently, FFPE tissues represent an attractive reservoir of clinical material for conducting retrospective protein biomarker analysis. A limitation for proteomics research in this type of clinical sample is the amount of viable protein that can be obtained from fixed tissues. Tissue biopsies are precious samples that can generally be acquired in very small amounts due to the invasive nature of the sample collection, mainly during surgery or biopsy. Subsequently, the amount of extracted protein can be, in many cases, very limited. The saturation DIGE technology has emerged as a useful method for protein analysis where only scarce amounts of protein are available. This approach can be adapted successfully to label low-level protein isolated from FFPE tissue. PMID- 29019128 TI - Comparative 3-Sample DIGE Analysis of Skeletal Muscles. AB - The skeletal muscle proteome consists of a large number of diverse protein species with a broad and dynamic concentration range. Since mature skeletal muscles are characterized by a specific combination of contractile cells with differing physiological and biochemical properties, it is essential to determine specific differences in the protein composition of fast, slow, and hybrid fibers. Fluorescence two-dimensional gel electrophoresis (DIGE) is a powerful comparative tool to analyze fiber type-specific differences between fast and slow muscles. In this chapter, the application of the DIGE method for the comparative analysis of different subtypes of skeletal muscles is outlined in detail. A standardized proteomic workflow is described, involving sample preparation, protein extraction, differential fluorescence labeling using a 3-dye system, first dimension isoelectric focusing, second-dimension slab gel electrophoresis, DIGE image analysis, protein digestion, and mass spectrometry. PMID- 29019129 TI - DIGE Analysis of ProteoMinerTM Fractionated Serum/Plasma Samples. AB - The discovery of clinically relevant biomarkers using gel-based proteomics has proven extremely challenging, principally because of the large dynamic range of protein abundances in biofluids such as blood and the fact that only a small number of proteins constitute the vast majority of total blood protein mass. Various separation, depletion, enrichment, and quantitative developments coupled with improvements in gel-based protein quantification technologies, specifically difference gel electrophoresis (DIGE), have contributed to significant improvements in the detection and identification of lower abundance proteins. One of these enrichment technologies, Proteominer, will be the focus of this chapter. The Proteominer technology a utilizes hexapeptide bead library with huge diversity to bind and enrich low-abundance proteins but at the same time suppressing the concentration of high-abundance proteins in subsequent analysis. PMID- 29019130 TI - DIGE Analysis of Human Tissues. AB - Two-dimensional difference gel electrophoresis (2-D DIGE) is an advanced and elegant gel electrophoretic analytical tool for comparative protein assessment. It is based on two-dimensional gel electrophoresis (2-DE) separation of fluorescently labeled protein extracts. The tagging procedures are designed to not interfere with the chemical properties of proteins with respect to their pI and electrophoretic mobility, once a proper labeling protocol is followed. The two-dye or three-dye systems can be adopted and their choice depends on specific applications. Furthermore, the use of an internal pooled standard makes 2-D DIGE a highly accurate quantitative method enabling multiple protein samples to be separated on the same two-dimensional gel. The image matching and cross-gel statistical analysis generates robust quantitative results making data validation by independent technologies successful. PMID- 29019131 TI - DIGE Analysis of Animal Tissues. AB - Two-dimensional difference gel electrophoresis (2D-DIGE) is an acrylamide gel electrophoresis-based technique for protein separation and quantification in complex mixtures. The technique addresses some of the drawbacks of conventional 2D polyacrylamide gel electrophoresis (2D-PAGE), offering improved sensitivity, more limited experimental variation and accurate within-gel matching. DIGE is based on direct labeling of proteins with isobaric fluorescent dyes (known as CyDyes: Cy2, Cy3, and Cy5) prior to isoelectric focusing (IEF). Here, up to two samples and a reference pool (internal standard) can be mixed and loaded onto IEF for first dimension prior to SDS-PAGE separation in the second dimension. After the electrophoretic run, the gel is imaged at the specific excitation wavelength for each dye, in sequence, and gel scans are recorded separately. For each individual protein spot, intensities recorded at the different wavelengths are integrated and the ratio between volumes normalized to that of the internal standard. This provides an immediate appreciation of protein amount variations under the different conditions tested. In addition, proteins of interest can still be excised and identified with conventional mass spectrometry techniques and further analyzed by other biochemical methods. In this chapter, we describe the application of this methodology to separation and quantitation of proteins mixtures from porcine muscle exudate, collected following centrifugation of muscle specimens (centrifugal drip) for the characterization of quality parameters of importance in the meat industry. PMID- 29019132 TI - Rapid 2D DIGE Proteomic Analysis of Mouse Liver. AB - Several years have passed since LC-MS(/MS) became the mainstream for proteomic analysis; however, conventional 2D DIGE (two-dimensional difference gel electrophoresis) continues to be an important technology that enables rapid and direct visualization of hundreds to thousands of proteins and their quantitative analyses. We can get global proteomic views using 2D DIGE within 3 days, and then identify proteins with differential expression levels using MALDI-TOF/MS and MASCOT search engine within a week. Here, we describe our routine 2D DIGE proteomic analysis of the liver isolated from mice in pathological conditions. PMID- 29019133 TI - Proteomic Analysis of Lung Tissue by DIGE. AB - Lungs perform an essential physiological function, mediated by a complex series of events that involve the coordination of multiple cell types to support not only gaseous exchange, but homeostasis and protection from infection. Guinea pigs are an important animal disease model for a number of infectious and noninfectious pulmonary conditions and the availability of a complete genome facilitates comprehensive analysis of tissues using the tools of proteomics. Here, we describe the application of 2-D Difference Gel Electrophoresis (DIGE) to compare, quantify, and identify differential protein expression of proteins in lung tissue from guinea pigs with leptospiral pulmonary hemorrhage syndrome (LPHS) compared to noninfected controls. 2-D DIGE is a powerful technique that provides novel insights into the dynamics of the complex lung proteome during health and disease. PMID- 29019134 TI - Comparative Testis Tissue Proteomics Using 2-Dye Versus 3-Dye DIGE Analysis. AB - Comparative tissue proteomics aims to analyze alterations of the proteome in response to a stimulus. Two-dimensional difference gel electrophoresis (2D-DIGE) is a modified and advanced form of 2D gel electrophoresis. DIGE is a powerful biochemical method that compares two or three protein samples on the same analytical gel, and can be used to establish differentially expressed protein levels between healthy normal and diseased pathological tissue sample groups. Minimal DIGE labeling can be used via a 2-dye system with Cy3 and Cy5 or a 3-dye system with Cy2, Cy3, and Cy5 to fluorescently label samples with CyDye flours pre-electrophoresis. DIGE circumvents gel-to-gel variability by multiplexing samples to a single gel and through the use of a pooled internal standard for normalization. This form of quantitative high-resolution proteomics facilitates the comparative analysis and evaluation of tissue protein compositions. Comparing tissue groups under different conditions is crucially important for advancing the biomedical field by characterization of cellular processes, understanding pathophysiological development and tissue biomarker discovery. This chapter discusses 2D-DIGE as a comparative tissue proteomic technique and describes in detail the experimental steps required for comparative proteomic analysis employing both options of 2-dye and 3-dye DIGE minimal labeling. PMID- 29019135 TI - DIGE Analysis of Fish Tissues. AB - Two-dimensional difference gel electrophoresis (2D-DIGE) appears to be especially useful in quantitative approaches, allowing the co-separation of proteins of control samples from proteins of treatment/disease samples on the same gel, eliminating gel-to-gel variability. The principle of 2D-DIGE is to label proteins prior to isoelectric focusing and use three spectrally resolvable fluorescent dyes, allowing the independent labeling of control and experimental samples. This procedure makes it possible to reduce the number of gels in an experiment, allowing the accurate and reproducible quantification of multiple samples. 2D DIGE has been found to be an excellent methodical tool in several areas of fish research, including environmental pollution and toxicology, the mechanisms of development and disorders, reproduction, nutrition, evolution, and ecology. PMID- 29019136 TI - Protein Digestion for DIGE Analysis. AB - In-gel digestion of protein spots derived from two-dimensional gels and their subsequent identification by mass spectrometry is involved in a multitude of mass spectrometry-driven proteomic experiments, including fluorescence difference gel electrophoresis (DIGE). This type of proteomic methodology has been involved in the establishment of comparative proteome maps and in the identification of differentially expressed proteins and protein isoforms in health and disease. Most in-gel digestion protocols follow a number of common steps including excision of the protein spots of interest, de-staining, reduction and alkylation (for silver-stained gels), dehydration and overnight digestion with the proteolytic enzyme of choice. While trypsin has been a mainstay of peptide digestion for many years, it does have its shortcomings, particularly related to incomplete peptide digestion, and this has led to a rise in popularity for other proteolytic enzymes either used alone or in combination. This chapter discusses the alternative enzymes available and describes the process of in-gel digestion using the enzyme trypsin. PMID- 29019137 TI - Subcellular Fractionation for DIGE-Based Proteomics. AB - Mass spectrometry-based protein methodologies have revolutionized the field of analytical biochemistry and enable the identification of hundreds to thousands of proteins in biological fluids, cell lines, and tissue. This methodology requires the initial separation of a protein constellation and this has been successfully achieved using gel-based techniques, particularly that of two-dimensional difference gel electrophoresis (2D-DIGE). However, given the complexity of the proteome, fractionation techniques may be required to optimize the detection of low-abundance proteins, which are often under-represented, but which may represent important players in health and disease. Such subcellular fractionation protocols typically utilize density-gradient centrifugation and have enabled the enrichment of crude microsomes, the cytosol, the plasmalemma, the nuclei, and the mitochondria. In this chapter, we describe the experimental steps involved in the enrichment of crude microsomes from skeletal muscle using differential centrifugation and subsequent verification of enrichment by gel electrophoresis and immunoblotting, prior to comparative DIGE analysis. PMID- 29019138 TI - DIGE Analysis of Immunodepleted Plasma. AB - This chapter will focus on upstream immunodepletion of high abundant proteins from plasma samples and subsequent analysis by difference gel electrophoresis (DIGE). The abundances of proteins in biofluid proteomes, such as serum, plasma, saliva, and bronchoalveolar lavage fluid (BALF), can exceed 10 orders of magnitude. This substantial dynamic range is problematic for the detection of medium and low abundance proteins by DIGE analysis. To increase the detection, quantification, and identification of medium-low abundant proteins, the targeted depletion of known abundant proteins with antibody columns has been successfully employed. From the literature, it is clear that the performance of abundant protein depletion with immunodepletion columns has been successful in broadening the coverage of the biofluid proteome and facilitating the identification of disease-specific biomarkers. The task for a successful biomarker strategy involves the combination of a reproducible and robust fractionation method, coupled with a highly accurate quantitative method, a task that is exemplified by combining both immunodepletion and DIGE together to discover significant proteins associated with the disease phenotype. PMID- 29019139 TI - Elucidating Cellular Metabolism and Protein Difference Data from DIGE Proteomics Experiments Using Enzyme Assays. AB - Assays for measuring enzyme activity can be useful tools for proteomics applications. Enzyme testing can be performed to validate an experimental system prior to a Difference Gel Electrophoresis (DIGE) proteomic experiment and can also be utilized as an integral part of multifaceted experiment in conjunction with DIGE. Data from enzyme tests can be used to corroborate results of DIGE proteomic experiments where an enzyme or enzymes are demonstrated by DIGE to be differentially expressed. Enzyme testing can also be utilized to support data from DIGE experiments that demonstrate metabolic changes in a biological system. The different types of enzyme assays that can be performed in conjunction with DIGE experiments are reviewed alongside a discussion of experimental approaches for designing enzyme assays. PMID- 29019140 TI - Enzyme Assay Methods to Validate DIGE Proteomics Data. AB - Enzyme activity assay methods can be used to corroborate the results generated by Difference Gel Electrophoresis (DIGE) proteomic experiments. Two assay methods were chosen to demonstrate how this can be achieved. Assays for determining the activity of superoxide dismutase and NADH dehydrogenase are outlined in detail in this paper. These methods were chosen as examples because they are frequently used in conjunction with DIGE proteomics. PMID- 29019141 TI - Immunoblot Analysis of DIGE-Based Proteomics. AB - Proteins can be separated according to their size by gel electrophoresis and further analyzed by Western blotting. The proteins can be transferred to a membrane made of nitrocellulose or polyvinylidene fluoride (PVDF), which results in a replica of the proteins' separation patterns. The proteins on the membrane can be detected by specific antibodies followed by visualization either on the membrane itself, on film or by CCD cameras. Western blotting is a sensitive technique to verify data obtained from difference gel electrophoresis (DIGE) based proteomics. PMID- 29019142 TI - Immunofluorescence Microscopy for DIGE-Based Proteomics. AB - Alterations in the proteome of a tissue in different settings, as assessed by difference gel electrophoresis, can be verified for single proteins using immunohistochemistry. In fluorescence immunohistochemistry, an antibody to a particular antigen is applied to tissue sections, and fluorophores conjugated to a secondary antibody allow for the detection of target antigen with fluorescent microscopy. Visual comparison is sufficient for the detection of significant alterations in the abundance of a certain protein in different settings. Additionally, unlike large-scale proteome analyses and Western blot methods, expression of target protein can be analyzed at the cellular level by immunohistochemistry. In this chapter, a protocol for the application of fluorescence immunohistochemistry for the detection of dystrophin in skeletal muscle sections is outlined, including sample preparation, tissue sectioning, and immunostaining. PMID- 29019143 TI - Structure and mechanism of plant histone mark readers. AB - In eukaryotes, epigenetic-based mechanisms are involved in almost all the important biological processes. Amongst different epigenetic regulation pathways, the dynamic covalent modifications on histones are the most extensively investigated and characterized types. The covalent modifications on histone can be "read" by specific protein domains and then subsequently trigger downstream signaling events. Plants generally possess epigenetic regulation systems similar to animals and fungi, but also exhibit some plant-specific features. Similar to animals and fungi, plants require distinct protein domains to specifically "read" modified histones in both modification-specific and sequence-specific manners. In this review, we will focus on recent progress of the structural studies on the recognition of the epigenetic marks on histones by plant reader proteins, and further summarize the general and exceptional features of plant histone mark readers. PMID- 29019144 TI - Role of microbiota on lung homeostasis and diseases. AB - The lungs, as a place of gas exchange, are continuously exposed to environmental stimuli, such as allergens, microbes, and pollutants. The development of the culture-independent technique for microbiological analysis, such as 16S rRNA sequencing, has uncovered that the lungs are not sterile and, in fact, colonized by diverse communities of microbiota. The function of intestinal microbiota in modulating mucosal homeostasis and defense has been widely studied; however, the potential function of lung microbiota in regulating immunity and homeostasis has just begun. Increasing evidence indicates the relevance of microbiota to lung homeostasis and disease. In this review, we describe the distribution and composition of microbiota in the respiratory system and discuss the potential function of lung microbiota in both health and acute/chronic lung disease. In addition, we also discuss the recent understanding of the gut-lung axis, because several studies have revealed that the immunological interaction among the gut, the lung, and the microbiota was involved in this issue. PMID- 29019145 TI - Phylogenetic and genetic characterization of a 2017 clinical isolate of H7N9 virus in Guangzhou, China during the fifth epidemic wave. AB - Pathogenic H7N9 influenza viruses continue to pose a public health concern. The H7N9 virus has caused five outbreak waves of human infections in China since 2013. In the present study, a novel H7N9 strain (A/Guangdong/8H324/2017) was isolated from a female patient with severe respiratory illness during the fifth wave of the 2017 H7N9 epidemic. Phylogenetic analysis showed that the H7N9 viruses collected during the fifth wave belong to two different lineages: the Pearl River Delta lineage and the Yangtze River Delta lineage. The novel isolate is closely related to the Pearl River Delta H7N9 viruses, which were isolated from patients in Guangdong Province. The novel H7N9 isolate has an insertion of three basic amino acids in the cleavage site of hemagglutinin (HA), which may enhance virulence in poultry. The 2017 isolate also possesses an R292K substitution in the neuraminidase (NA) protein, which confers oseltamivir resistance. This study highlights the pandemic potential of the novel H7N9 virus in mammals; thus, future characterization and surveillance is warranted. PMID- 29019147 TI - MRI and multiple sclerosis-the evolving role of MRI in the diagnosis and management of MS: a clinician's perspective. AB - The diagnosis of multiple sclerosis (MS) is based on a history consistent with demyelination of the central nervous system and corresponding physical signs on examination. However, this diagnosis is supported radiologically using magnetic resonance imaging (MRI). At present, MRI serves as the most reliable and widely available biomarker for the practising clinician to measure disease activity and treatment response in MS. As MRI remains central to both the diagnosis and management of MS, this paper provides proposed guidelines for its use in routine clinical practice. PMID- 29019146 TI - Spinal cord injury after thoracic endovascular aortic aneurysm repair. AB - PURPOSE: Thoracic endovascular aortic aneurysm repair (TEVAR) has become a mainstay of therapy for aneurysms and other disorders of the thoracic aorta. The purpose of this narrative review article is to summarize the current literature on the risk factors for and pathophysiology of spinal cord injury (SCI) following TEVAR, and to discuss various intraoperative monitoring and treatment strategies. SOURCE: The articles considered in this review were identified through PubMed using the following search terms: thoracic aortic aneurysm, TEVAR, paralysis+TEVAR, risk factors+TEVAR, spinal cord ischemia+TEVAR, neuromonitoring+thoracic aortic aneurysm, spinal drain, cerebrospinal fluid drainage, treatment of spinal cord ischemia. PRINCIPAL FINDINGS: Spinal cord injury continues to be a challenging complication after TEVAR. Its incidence after TEVAR is not significantly reduced when compared with open thoracoabdominal aortic aneurysm repair. Nevertheless, compared with open procedures, delayed paralysis/paresis is the predominant presentation of SCI after TEVAR. The pathophysiology of SCI is complex and not fully understood, though the evolving concept of the importance of the spinal cord's collateral blood supply network and its imbalance after TEVAR is emerging as a leading factor in the development of SCI. Cerebrospinal fluid drainage, optimal blood pressure management, and newer surgical techniques are important components of the most up-to-date strategies for spinal cord protection. CONCLUSION: Further experimental and clinical research is needed to aid in the discovery of novel neuroprotective strategies for the protection and treatment of SCI following TEVAR. PMID- 29019149 TI - Leukemia Inhibitory Factor Increases Survival of Pluripotent Stem Cell-Derived Cardiomyocytes. AB - Leukemia inhibitory factor (LIF) is a growth factor with pleiotropic biological functions. It has been reported that LIF acts at different stages during mesoderm development. Also, it has been shown that LIF has a cytoprotective effect on neonatal murine cardiomyocytes (CMs) in culture, but little is known about the role of LIF during human cardiogenesis. Thus, we analyzed the effects of LIF on human pluripotent stem cells (PSC) undergoing cardiac differentiation. We first showed that LIF is expressed in the human heart during early development. We found that the addition of LIF within a precise time window during the in vitro differentiation process significantly increased CMs viability. This finding was associated to a decrease in the expression of pro-apoptotic protein Bax, which coincides with a reduction of the apoptotic rate. Therefore, the addition of LIF may represent a promising strategy for increasing CMs survival derived from PSCs. PMID- 29019148 TI - Modulating what is and what could have been: The effect of transcranial direct current stimulation on the evaluation of attained and unattained decision outcomes. AB - The affective evaluation of decision outcomes, whether attained (e.g., disappointment) or based on the conscious realization that a decision made differently would have led to a better or worse outcome (e.g., regret), greatly influence future decisions. Prior research has demonstrated a role of the medial and orbitofrontal cortex (M/OFC) in decision valuation and the experience of regret and relief. Here we examined whether inhibitory transcranial direct current stimulation (tDCS) could dampen the experience of decision-induced affect, with a focus on regret and relief. Thirty-eight participants completed a previously used gambling task and were asked to rate their happiness with attained outcomes of a chosen gamble before and after being shown unattained, counterfactual outcomes (i.e., what would have happened had they selected the other gamble). The difference in happiness rating before and after revealing these unattained counterfactual outcomes was taken as a measure of regret (negative shift) or relief (positive shift). During this task, 20 participants received 2 mA cathodal tDCS over EEG coordinate Fp1 for 20 minutes, and 18 participants received sham stimulation over the same location. Linear mixed-model results showed that, compared to sham, participants who received cathodal tDCS reported less intense emotions in response to attained as well as counterfactual outcomes. These findings were not due to the groups differing in the gambles they selected or attained monetary outcomes, demonstrating that tDCS can modulate decision-induced (counterfactual) affect. This may have implications for the ability to modulate value-based decision-making using brain stimulation techniques more broadly. PMID- 29019151 TI - Bariatric Surgery Is Acceptably Safe in Obese Inflammatory Bowel Disease Patients: Analysis of the Nationwide Inpatient Sample. AB - BACKGROUND: The prevalence of obesity in patients with inflammatory bowel disease (IBD) has increased over the past decades. Data to support the safety of bariatric surgery (BAR) in IBD remain scarce. Our aim was to evaluate the safety and early postoperative complications of BAR in IBD patients. METHODS: We used the Nationwide Inpatient Sample (NIS) 2011, 2012, and 2013 to perform a cohort study. The study group was all hospitalized patients between ages 18-90 years who underwent BAR with a discharge diagnosis of IBD as per the Ninth International Classification of Diseases codes (ICD-9). Adults who underwent BAR without ICD-9 codes of IBD were identified as the comparison group. Complications were compared using multivariate logistic regression analysis. RESULTS: We identified 314,864 adult patients who underwent BAR between 2011 and 2013. Mean age was 45.5 +/- 0.11 years, and 79% were females. Seven hundred and ninety patients had underlying IBD; 459 had Crohn's disease and 331 had ulcerative colitis. The remaining patients formed the comparison group. Mean length of hospital stay (LOS) was longer in the IBD group by 1 day (p = 0.01). The IBD group had a significantly higher risk of perioperative small bowel obstruction (SBO) (adjusted odds ratio, 4.0; 95%, CI; 2.2-7.4). Other technical and systemic complications were similar between the two groups, with no mortality reported in the IBD group. CONCLUSIONS: BAR in IBD patients has an acceptable safety profile, with immeditae risk limited to perioperative SBO and an apparently low risk of mortality or other major immediate postoperative complications. PMID- 29019152 TI - Travel Warning. PMID- 29019153 TI - Emperor's New. PMID- 29019154 TI - Michael Angel. PMID- 29019156 TI - Where Did He Go? PMID- 29019150 TI - The Zollinger-Ellison syndrome: is there a role for somatostatin analogues in the treatment of the gastrinoma? AB - PURPOSE: Analyze the role of somatostatin analogues (SSAs) in the treatment of sporadic and MEN1-related gastrinomas, trying to define whether recent trials have changed the landscape of gastrinoma therapy. METHODS: We evaluate the rationale of SSA use in the treatment of gastrinomas, summarize the current literature concerning the effect of SSAs on the control of Zollinger-Ellison syndrome (ZES) and gastrinomas tumor progression and discuss their role in the most recent guidelines. RESULTS: The medical treatment of gastrinoma and related ZES is aimed at controlling acid hypersecretion and tumor progression, in inoperable patients. The use of proton pump inhibitors (PPIs) to control the syndrome is a cornerstone in the ZES therapy. SSAs are not usually indicated for antisecretory purpose, because PPIs are considered the treatment of choice, due to their long lasting high efficacy and oral availability. The antiproliferative effect of SSAs has been established by two placebo-controlled trials that have clearly demonstrated a significant increase in progression free survival in patients affected by non-functioning well-differentiated advanced neuroendocrine tumors (NETs). The recent ENETS guidelines recommend the use of SSAs in advanced well differentiated NETs as antiproliferative agents. CONCLUSIONS: The high sstr expression in gastrinomas make them highly responsive to SSAs and support the use of such drugs to counteract the tumour growth in patients not amenable to surgical cure. Unfortunately, limited data, mainly case reports or small series, support the use of SSAs in advanced gastrinomas, therefore, it is difficult to quantify their ability to control tumour growth and disease progression. PMID- 29019157 TI - Does neighborhood size really cause the word length effect? AB - In short-term serial recall, it is well-known that short words are remembered better than long words. This word length effect has been the cornerstone of the working memory model and a benchmark effect that all models of immediate memory should account for. Currently, there is no consensus as to what determines the word length effect. Jalbert and colleagues (Jalbert, Neath, Bireta, & Surprenant, 2011a; Jalbert, Neath, & Surprenant, 2011b) suggested that neighborhood size is one causal factor. In six experiments we systematically examined their suggestion. In Experiment 1, with an immediate serial recall task, multiple word lengths, and a large pool of words controlled for neighborhood size, the typical word length effect was present. In Experiments 2 and 3, with an order reconstruction task and words with either many or few neighbors, we observed the typical word length effect. In Experiment 4 we tested the hypothesis that the previous abolition of the word length effect when neighborhood size was controlled was due to a confounded factor: frequency of orthographic structure. As predicted, we reversed the word length effect when using short words with less frequent orthographic structures than the long words, as was done in both of Jalbert et al.'s studies. In Experiments 5 and 6, we again observed the typical word length effect, even if we controlled for neighborhood size and frequency of orthographic structure. Overall, the results were not consistent with the predictions of Jalbert et al. and clearly showed a large and reliable word length effect after controlling for neighborhood size. PMID- 29019158 TI - Cost-effectiveness of nurse-delivered cognitive behavioural therapy (CBT) compared to supportive listening (SL) for adjustment to multiple sclerosis. AB - BACKGROUND: Cognitive Behavioural Therapy (CBT) reduces distress in multiple sclerosis, and helps manage adjustment, but cost-effectiveness evidence is lacking. METHODS: An economic evaluation was conducted within a multi-centre trial. 94 patients were randomised to either eight sessions of nurse-led CBT or supportive listening (SL). Costs were calculated from the health, social and indirect care perspectives, and combined with additional quality-adjusted life years (QALY) or improvement on the GHQ-12 score, to explore cost-effectiveness at 12 months. RESULTS: CBT had higher mean health costs (L1610, 95% CI, -L187 to 3771) and slightly better QALYs (0.0053, 95% CI, -0.059 to 0.103) compared to SL but these differences were not statistically significant. This yielded L301,509 per QALY improvement, indicating that CBT is not cost-effective according to established UK NHS thresholds. The extra cost per patient improvement on the GHQ 12 scale was L821 from the same perspective. Using a L20,000, threshold, CBT in this format has a 9% probability of being cost effective. Although subgroup analysis of patients with clinical levels of distress at baseline showed an improvement in the position of CBT compared to SL, CBT was still not cost effective. CONCLUSION: Nurse delivered CBT is more effective in reducing distress among MS patients compared to SL, but is highly unlikely to be cost-effective using a preference-based measure of health (EQ-5D). Results from a disease specific measure (GHQ-12) produced comparatively lower Incremental Cost Effectiveness Ratios, but there is currently no acceptable willingness-to-pay threshold for this measure to guide decision-making. PMID- 29019160 TI - The role of cognitive reserve in cognitive aging: what we can learn from Parkinson's disease. AB - Parkinson's disease (PD) typically occurs in elderly people and some degree of cognitive impairment is usually present. Cognitive reserve (CR) theory was proposed to explain the discrepancy between the degree of brain pathologies and clinical manifestations. We administered a comprehensive neuropsychological battery to 35 non-demented participants affected by PD. All participants underwent also the Cognitive Reserve Index questionnaire and the Brief Intelligence Test as proxies for CR. Relationships between CR and cognitive performance were investigated by linear regression analyses, adjusting for significant confounding factors. At linear regression analyses, higher CR scores were independently associated with a better performance on Word Fluency (p <= 0.04) and Digit Span (backward) (p <= 0.02); no associations were observed between CR and other cognitive tests. Our data provide empirical support to the relation between CR and cognitive impairment in PD. In particular, this study suggests that CR may have greater effects on the cognitive areas mostly affected in PD as executive functions. PMID- 29019159 TI - Alpha Lipoamide Ameliorates Motor Deficits and Mitochondrial Dynamics in the Parkinson's Disease Model Induced by 6-Hydroxydopamine. AB - The precise mechanisms underlying neuronal injury in Parkinson's disease (PD) are not yet fully elucidated; however, evidence from the in vitro and in vivo PD models suggest that mitochondrial dysfunction may play a major role in PD pathogenesis. Alpha lipoamide, a neutral amide derivative of the lipoic acid, is a better cofactor for mitochondrial dehydrogenase with a stronger protective effect on mitochondria than lipoic acid. Identification of these protective effects of alpha lipoamide on mitochondria, together with the evidence that mitochondrial dysfunction plays a critical role in PD, we speculate that alpha lipoamide may exert a protective effect in PD by regulating the mitochondrial function. The present study investigated the neuroprotective effects of alpha lipoamide in an animal model of PD induced by 6-hydroxydopamine (6-OHDA). The results demonstrated that alpha lipoamide could significantly antagonize the 6 OHDA-induced behavioral damages; restore ATP levels in the midbrain; and also improve the fragmentation, vacuolization, and morphology of the mitochondria. The results of Western blot indicated that alpha lipoamide significantly restored the number of dopaminergic neurons in midbrain and substantially recovered the balance between mitochondrial fission, fusion, and transport. In conclusion, the results demonstrated that alpha lipoamide might exert a significant neuroprotective effect in the animal model of PD by regulation of the dynamic properties of mitochondria. PMID- 29019162 TI - LsrB-based and temperature-dependent identification of bacterial AI-2 receptor. AB - The luxS gene is required for autoinducer-2 (AI-2) synthesis in many bacterial species. AI-2 is taken up by a specific receptor to regulate multiple bacterial activities. However, the lack of methods to identify AI-2 receptors has impeded investigations into the roles of AI-2. Here, a luxS mutant of Escherichia coli strain BL21 (DE3) was constructed (named BL21?luxS), and the recombinant LsrB protein of Salmonella enterica was expressed in BL21?luxS and BL21 cells, which were named LsrB (BL21?luxS) and LsrB (BL21), respectively. The results of the activity of recombinant LsrB binding showed that LsrB (BL21) bound to endogenous AI-2 (produced from BL21 strain), while LsrB (BL21?luxS) did not (as BL21?luxS cannot produce AI-2). However, the results of recombinant LsrB binding showed that LsrB (BL21?luxS) can bind exogenous AI-2, which was released from LsrB (BL21?luxS) at 55 degrees C for 10 min, while LsrB (BL21) could not bind exogenous AI-2 (due to binding of endogenous AI-2 before). Furthermore, analysis of the thermal stability of AI-2 showed that that AI-2 activity was relatively high at incubation temperatures below 65 degrees C. These findings will be beneficial for screening of new AI-2 receptors in different bacterial species. PMID- 29019161 TI - Assessing the Use of a Feedback Module to Model EQ-5D-5L Health States Values in Hong Kong. AB - BACKGROUND: An international valuation protocol exists for obtaining societal values for each of the 3125 health states of the five-level EuroQol-five dimensions (EQ-5D-5L) questionnaire. A feedback module (FM) that can be related to theoretical models used in behavioral economics was recently included in this protocol. OBJECTIVES: Our objective was to assess the impact of using an FM to estimate an EQ-5D-5L value set in Hong Kong. METHODS: EQ-5D-5L health states were elicited using a composite time trade-off (C-TTO) and a discrete-choice (DC) experiment. Use of the FM according to participant characteristics and the impact of the FM on the number of inconsistent C-TTO responses were assessed. We employed a main-effects hybrid model that combined data from both elicitation techniques. RESULTS: In total, 1014 individuals completed the survey. The sample was representative of the general Chinese Hong Kong population in terms of sex, educational attainment, marital status, and most age groups but not for employment status. The use of the FM reduced the number of C-TTO inconsistencies. Participant characteristics differed significantly between those who used and did not use the FM. The model without a constant resulted in logical consistent coefficients and was therefore selected as the model to produce the value set. The predicted EQ-5D-5L values ranged from -0.864 to 1. CONCLUSIONS: The use of an FM to allow participants to exclude C-TTO responses reduced the number of inconsistent responses and improved the quality of the data when estimating an EQ 5D-5L value set in Hong Kong. PMID- 29019163 TI - Enzyme replacement therapy in a patient of heterozygous Fabry disease: clinical and pathological evaluations by repeat kidney biopsy and a successful pregnancy. AB - Fabry disease is a rare X-linked lysosomal storage disorder of glycosphingolipid catabolism caused by deficient activity of the lysosomal hydrolase alpha galactosidase A (alpha-Gal A). A 20-year-old woman was referred to our hospital because of proteinuria and persistent macroscopic hematuria. Based on the typical renal pathological findings, deficient activity of the alpha-Gal A, and heterozygous mutation in the alpha-Gal A gene, she was diagnosed with Fabry disease. After 1 year of enzyme replacement therapy with agalsidase alfa at 0.2 mg/kg every other week, the patient's proteinuria and hematuria were disappeared. In our patient, enzyme replacement therapy with agalsidase alfa was observed to be safe and well-tolerated during her pregnancy, with no significant negative effects on her or her child. Here, we report clinical and pathological evaluations of a patient through repeat kidney biopsy after 6 years of enzyme replacement therapy. Furthermore, we discussed the appropriate enzyme replacement therapy and its safety in pregnant women with Fabry disease. PMID- 29019165 TI - Correction to: Variations of characteristic time scales in rotating stratified turbulence using a large parametric numerical study. AB - After publication of the paper, an error in computing the ratio gamma of kinetic to potential energy transfer times has been detected, which has led the authors to amend two figures, as explained in the main text. PMID- 29019164 TI - Tuberculosis of the Breast in Togo: A Series of 28 Presumed Cases. AB - Our study aimed to describe the epidemiological, clinical and histological aspects of mammary tuberculosis in Togo. This is a descriptive cross-sectional study of breast tuberculosis for which the diagnosis was presumed on histological grounds in the pathology department (LAP) of the Lome Tokoin university hospital from January 1995 to December 2016 (20 years). A total of 28 presumed cases of mammary tuberculosis were identified. There were 26 women and 2 men, with an average age of 34.2 +/- 0.3 years. The clinical signs were nodule (84.1%), tumefaction (75%), abscess (63.6%) and tumefaction with cutaneous fistulization (59.1%). Breast involvement was isolated in 31.8% of cases and associated with pleuropulmonary tuberculosis in 54.5% of cases. Co-infection with HIV was found in 63.9 % of cases. Histology showed inflammatory granulomas made of Langhans giant cells, epithelioid cells and lymphocytes around the foci of caseous necrosis. Thoracic radiography was abnormal in 16 patients (57.1%).Mammary tuberculosis is not rare in our country. Clinical presentation is often misleading and is a diagnostic challenge, more particularly with breast abscess or cancer. PMID- 29019167 TI - Hybrid Simulation in Teaching Clinical Breast Examination to Medical Students. AB - Clinical breast examination (CBE) is traditionally taught to third-year medical students using a lecture and a tabletop breast model. The opportunity to clinically practice CBE depends on patient availability and willingness to be examined by students, especially in culturally sensitive environments. We propose the use of a hybrid simulation model consisting of a standardized patient (SP) wearing a silicone breast simulator jacket and hypothesize that this, compared to traditional teaching methods, would result in improved learning. Consenting third year medical students (N = 82) at a university-affiliated tertiary care center were cluster-randomized into two groups: hybrid simulation (breast jacket + SP) and control (tabletop breast model). Students received the standard lecture by instructors blinded to the randomization, followed by randomization group-based learning and practice sessions. Two weeks later, participants were assessed in an Objective Structured Clinical Examination (OSCE), which included three stations with SPs blinded to the intervention. The SPs graded the students on CBE completeness, and students completed a self-assessment of their performance and confidence during the examination. CBE completeness scores did not differ between the two groups (p = 0.889). Hybrid simulation improved lesion identification grades (p < 0.001) without increasing false positives. Hybrid simulation relieved the fear of missing a lesion on CBE (p = 0.043) and increased satisfaction with the teaching method among students (p = 0.002). As a novel educational tool, hybrid simulation improves the sensitivity of CBE performed by medical students without affecting its specificity. Hybrid simulation may play a role in increasing the confidence of medical students during CBE. PMID- 29019166 TI - Buckling of elastic filaments by discrete magnetic moments. AB - We study the buckling of an idealized, semiflexible filament along whose contour magnetic moments are placed. We give analytic expressions for the critical stiffness of the filament below which it buckles due to the magnetic compression. For this, we consider various scenarios of the attachment of the magnetic particles to the filament. One possible application for this model are the magnetosome chains of magnetotactic bacteria. An estimate of the critical bending stiffness indicates that buckling may occur within the range of biologically relevant parameters and suggests a role for the bending stiffness of the filament to stabilize the filament against buckling, which would compromise the functional relevance of the bending stiffness of the used filament. PMID- 29019168 TI - Lipids, lipid metabolism and Kaposi's sarcoma-associated herpesvirus pathogenesis. AB - Lipids are essential for mammalian cells to maintain many physiological functions. Emerging evidence has shown that cancer cells can develop specific alterations in lipid biosynthesis and metabolism to facilitate their survival and various malignant behaviors. To date, the precise role of cellular lipids and lipid metabolism in viral oncogenesis is still largely unclear with only a handful of literature covering this topic to implicate lipid metabolism in oncogenic virus associated pathogenesis. In this review, we focus on the role of lipid biosynthesis and metabolism in the pathogenesis of the Kaposi's sarcoma associated herpesvirus, a common causative factor for cancers arising in the immunocompromised settings. PMID- 29019169 TI - One-back reinforcement dissociates implicit-procedural and explicit-declarative category learning. AB - The debate over unitary/multiple category-learning utilities is reminiscent of debates about multiple memory systems and unitary/dual codes in knowledge representation. In categorization, researchers continue to seek paradigms to dissociate explicit learning processes (yielding verbalizable rules) from implicit learning processes (yielding stimulus-response associations that remain outside awareness). We introduce a new dissociation here. Participants learned matched category tasks with a multidimensional, information-integration solution or a one-dimensional, rule-based solution. They received reinforcement immediately (0-Back reinforcement) or after one intervening trial (1-Back reinforcement). Lagged reinforcement eliminated implicit, information-integration category learning but preserved explicit, rule-based learning. Moreover, information-integration learners facing lagged reinforcement spontaneously adopted explicit rule strategies that poorly suited their task. The results represent a strong process dissociation in categorization, broadening the range of empirical techniques for testing the multiple-process theoretical perspective. This and related methods that disable associative learning-fostering a transition to explicit-declarative cognition-could have broad utility in comparative, cognitive, and developmental science. PMID- 29019170 TI - Drug Delivery from an Innovative LAMA/LABA Co-suspension Delivery Technology Fixed-Dose Combination MDI: Evidence of Consistency, Robustness, and Reliability. AB - To ensure consistency of clinical outcomes, orally inhaled therapies must exhibit consistent delivered dose and aerosol properties at the time of manufacturing, throughout storage, and during various patient-use conditions. Achieving consistency across these scenarios has presented a significant challenge, especially for combination products that contain more than one drug. This study characterized the delivered dose and aerosol properties of glycopyrrolate/formoterol fumarate metered dose inhaler (GFF MDI; Bevespi AerosphereTM). GFF MDI, a fixed-dose combination (FDC) of a long-acting muscarinic antagonist, glycopyrrolate (18 MUg, equivalent to glycopyrronium 14.4 MUg), and a long-acting beta2-agonist, formoterol fumarate (9.6 MUg; equivalent to formoterol fumarate dihydrate 10 MUg), is formulated using innovative co suspension delivery technology, which suspends micronized drug crystals with spray-dried phospholipid porous particles in hydrofluoroalkane propellant. In this study, delivered dose uniformity was assessed through the labeled number of doses, and aerosol properties, such as percent fine particle fraction (FPF) and mass median aerodynamic diameter, were determined by cascade impaction. GFF MDI achieved reproducible dose delivery and an FPF greater than 55%, whether formulated and delivered as a monocomponent or dual FDC. The performance of GFF MDI was maintained across various manufacturing batches, under extended storage, and with variations in flow rate. Furthermore, unlike a GFF drug crystal-only suspension, drug delivery remained consistent for GFF MDI when simulated patient handling errors were applied, such as reduced shake energy and delays between shaking and actuation. These results demonstrate that co-suspension delivery technology overcomes well-known sources of variability in MDI drug delivery. PMID- 29019174 TI - Awake GlideScope(r)-assisted foreign body retrieval. PMID- 29019171 TI - Optimization of culture conditions for rapid clinical-scale expansion of human umbilical cord blood-derived mesenchymal stem cells. AB - BACKGROUND: Mesenchymal stem cells (MSCs) have broad-spectrum therapeutic effects in various diseases, and thus have many clinical applications. However, it is difficult to produce sufficient numbers of MSCs for clinical use, and improved culture systems are required. Here, we report the effects of calcium (Ca2+) and hypoxia on the proliferation of human umbilical cord blood-derived MSCs (hUCB MSCs). In addition, we determined the optimal conditions of these two factors for the large-scale culture of hUCB-MSCs. METHODS: hUCB-MSCs were maintained under hypoxic conditions (3% O2) with 1.8 mM Ca2+ during long-term culture, and their proliferation was evaluated. To characterize the underlying mechanisms, the effects on hypoxia-inducible factor (HIF)-1alpha and the extracellular signal regulated kinase (ERK) signaling pathways were investigated. The therapeutic effects in a mouse emphysema model were analyzed and compared with those of naive MSCs. RESULTS: The proliferation of Ca2+/hypoxia-treated hUCB-MSCs was increased compared with that observed using either calcium or hypoxia culture alone, without loss of stem cell marker expression or differentiation ability. The enhancement of the proliferation capacity of hUCB-MSCs by the synergistic effects of Ca2+ and hypoxia was dependent on the expression of HIF-1alpha and the ERK signaling pathway. The proliferation of Ca2+/hypoxia-treated hUCB-MSCs resulted in a delayed senescence phenotype and increased the expression levels of stemness genes such as Oct4 and Nanog compared to those observed in conventional culture conditions. In addition, Ca2+/hypoxia-treated MSCs transplantation in the mouse emphysema model showed the same therapeutic effects as observed with naive MSCs. CONCLUSIONS: These findings suggest that a Ca2+/hypoxia-based expansion system has applications for the large-scale production of MSCs for therapeutic purposes. PMID- 29019176 TI - Letter From the Editor-in-Chief: Journal Transition in the Digital Age. PMID- 29019175 TI - Isolated Limb Infusion: A Single-Center Experience with Over 200 Infusions. AB - BACKGROUND: Isolated limb infusion (ILI) is a minimally invasive technique for delivering regional chemotherapy to an extremity for patients with locally advanced cutaneous malignancies and sarcoma. METHODS: A single-institution, prospectively collected database was analyzed for intention-to-treat with ILI. RESULTS: From 2007 to 2016, 163 patients underwent 205 procedures (201 were successfully completed), and four malignancies were treated: melanoma (72.1% of all ILIs), sarcoma (23.4%), squamous cell carcinoma (SCC; 2.0%) and Merkel cell carcinoma (MCC; 2.5%). A median grade II regional Wieberdink toxicity score was observed, with 88.1% of patients experiencing grade II or less. Median follow-up was 21.8 months, and overall response rate (ORR) was 59.0% for melanoma, 48.9% for sarcoma, 50.0% for SCC, and 60.0% for MCC. A significant difference (p = 0.04) between upper (76.9%) and lower extremity (55.1%) ORR was observed in patients with melanoma. When comparing responders with nonresponders, patients with melanoma had significantly longer in-field progression-free survival (IPFS; 14.1 vs. 3.2 months, p < 0.001), distant metastatic-free survival (DMFS; not reached vs. 25.8 months, p = 0.006), and overall survival (OS; 56.0 vs. 26.7 months, p = 0.0004). Sarcoma responders had a significantly longer IPFS (13.0 vs. 2.7 months, p < 0.0001), but no significant distant metastatic or OS advantage. Over a median follow-up of 19.3 months, sarcoma patients had an overall limb salvage rate of 68.4%. CONCLUSION: ILI is a well-tolerated procedure for patients with locally advanced melanoma, sarcoma, and other cutaneous malignancies. ILI responders had a significantly longer time to IPFS, while melanoma responders also had a DMFS and OS advantage. PMID- 29019178 TI - Second harmonic generation for collagen I characterization in rectal cancer patients with and without preoperative radiotherapy. AB - Rectal cancer is treated with preoperative radiotherapy (RT) to downstage the tumor, reduce local recurrence, and improve patient survival. Still, the treatment outcome varies significantly and new biomarkers are desired. Collagen I (Col-I) is a potential biomarker, which can be visualized label-free by second harmonic generation (SHG). Here, we used SHG to identify Col-I changes induced by RT in surgical tissue, with the aim to evaluate the clinical significance of RT induced Col-I changes. First, we established a procedure for quantitative evaluation of Col-I by SHG in CDX2-stained tissue sections. Next, we evaluated Col-I properties in material from 31 non-RT and 29 RT rectal cancer patients. We discovered that the Col-I intensity and anisotropy were higher in the tumor invasive margin than in the inner tumor and normal mucosa, and RT increased and decreased the intensity in inner tumor and normal mucosa, respectively. Furthermore, higher Col-I intensity in the inner tumor was related to increased distant recurrence in the non-RT group but to longer survival in the RT group. In conclusion, we present a new application of SHG for quantitative analysis of Col I in surgical material, and the first data suggest Col-I intensity as a putative prognostic biomarker in rectal cancer. PMID- 29019179 TI - Vessel packaging effect in laser speckle contrast imaging and laser Doppler imaging. AB - Laser speckle-based techniques are frequently used to assess microcirculatory blood flow. Perfusion estimates are calculated either by analyzing the speckle fluctuations over time as in laser Doppler flowmetry (LDF), or by analyzing the speckle contrast as in laser speckle contrast imaging (LSCI). The perfusion estimates depend on the amount of blood and its speed distribution. However, the perfusion estimates are commonly given in arbitrary units as they are nonlinear and depend on the magnitude and the spatial distribution of the optical properties in the tissue under investigation. We describe how the spatial confinement of blood to vessels, called the vessel packaging effect, can be modeled in LDF and LSCI, which affect the Doppler power spectra and speckle contrast, and the underlying bio-optical mechanisms for these effects. As an example, the perfusion estimate is reduced by 25% for LDF and often more than 50% for LSCI when blood is located in vessels with an average diameter of 40 MUm, instead of being homogeneously distributed within the tissue. This significant effect can be compensated for only with knowledge of the average diameter of the vessels in the tissue. PMID- 29019180 TI - [Preface for special issue on bio-based materials (2016)]. AB - Bio-based materials are new materials or chemicals with renewable biomass as raw materials such as grain, legume, straw, bamboo and wood powder. This class of materials includes bio-based polymer, biobased fiber, glycotechnology products, biobased rubber and plastics produced by biomass thermoplastic processing and basic biobased chemicals, for instance, bio-alcohols, organic acids, alkanes, and alkenes, obtained by bio-synthesis, bio-processing and bio-refinery. Owing to its environmental friendly and resource conservation, bio-based materials are becoming a new dominant industry taking the lead in the world scientific and technological innovation and economic development. An overview of bio-based materials development is reported in this special issue, and the industrial status and research progress of the following aspects, including biobased fiber, polyhydroxyalkanoates, biodegradable mulching film, bio-based polyamide, protein based biomedical materials, bio-based polyurethane, and modification and processing of poly(lactic acid), are introduced. PMID- 29019177 TI - Long-Term Survival after Complete Surgical Resection and Adjuvant Immunotherapy for Distant Melanoma Metastases. AB - BACKGROUND: This phase III study was undertaken to evaluate the efficacy of an allogeneic whole-cell vaccine (CanvaxinTM) plus bacillus Calmette-Guerin (BCG) after complete resection of stage IV melanoma. METHODS: After complete resection of <=5 distant metastases, patients were randomly assigned to BCG+Canvaxin (BCG/Cv) or BCG+placebo (BCG/Pl). The primary endpoint was overall survival (OS); secondary endpoints were disease-free survival (DFS), and immune response measured by skin test (ClinicalTrials.gov identifier: NCT00052156). RESULTS: Beginning in May 1998, 496 patients were randomized. In April 2005, the Data Safety Monitoring Board recommended stopping enrollment due to a low probability of efficacy. At that time, median OS and 5-year OS rate were 38.6 months and 44.9%, respectively, for BCG/Pl versus 31.4 months and 39.6% in the BCG/Cv group (hazard ratio (HR), 1.18; p = 0.250). Follow-up was extended at several trial sites through March 2010. Median OS and 5-year and 10-year survival was 39.1 months, 43.3 and 33.3%, respectively, for BCG/Pl versus 34.9 months, 42.5 and 36.4%, in the BCG/Cv group (HR 1.053; p = 0.696). Median DFS, 5- and 10-year DFS were 7.6 months, 23.8 and 21.7%, respectively, for BCG/Pl versus 8.5 months, 30.0%, and 30.0%, respectively, for the BCG/Cv group (HR 0.882; p = 0.260). Positive DTH skin testing correlated with increased survival. DISCUSSION: In this, the largest study of postsurgical adjuvant therapy for stage IV melanoma reported to date, BCG/Cv did not improve outcomes over BCG/placebo. Favorable long-term survival among study patients suggests that metastasectomy should be considered for selected patients with stage IV melanoma. PMID- 29019181 TI - [Current status of bio-based materials industry in China]. AB - In recent years, bio-based materials are becoming a new dominant industry leading the scientific and technological innovation, and economic development of the world. We reviewed the new development of bio-based materials industry in China, analyzed the entire market of bio-based materials products comprehensively, and also stated the industry status of bio-based chemicals, such as lactic acid, 1,3 propanediol, and succinic acid; biodegradable bio-based polymers, such as co polyester of diacid and diol, polylactic acid, carbon dioxide based copolymer, polyhydroxyalknoates, polycaprolactone, and thermoplastic bio-based plastics; non biodegradable bio-based polymers, such as bio-based polyamide, polytrimethylene terephthalate, bio-based polyurethane, and bio-based fibers. PMID- 29019182 TI - [Progress on polyhydroxyalkanoates (PHA)]. AB - Microbial polyhydroxyalkanoates (PHA) has developed with more diversity and more advanced manufacturing technology. Diversity has now been reflected by diverse monomers, diverse structures and diverse polymerization modes, giving the concept of "PHAome". In addition, the application of synthetic biology and the development of seawater-based biotechnology reduce the production cost of PHA, making PHA more economically competitive. Some examples of commercialized PHA products are described here. Besides, PHA with high value added applications has been exploited. PMID- 29019183 TI - [Biomanufactured polyhydroxyalkanoates (PHA) modification: a review]. AB - In this review, we presented the industrial status of biomanufactured polyhydroxyalkanoates (PHA), including poly (3-hydroxybutyrate) (PHB), poly (3 hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), poly (3-hydroxybutyrate-co-4 hydroxybutyrate) (P3/4HB)), and poly (3-hydroxybutyrate-3-hydroxycaproate) (PHBH). A lot of modification studies, aimed at solving problems of poor thermal stability, narrow processing window and other drawbacks of PHA, are discussed. The properties of PHA can be optimized by using proper modification method, in order to expand its applications. PMID- 29019184 TI - [Application of biodegradable plastic film to reduce plastic film residual pollution in Chinese agriculture]. AB - Plastic film has become an important agriculture production material in recent years. Over the past three decades, the amount and application area of plastic film have increased steadily, and in 2014, which are 1.4 million tons and more than 180 million hm2 respectively. It plays a key role for ensuring the supply of agricultural goods in China. Meanwhile, plastic film residual pollution becomes more and more serious, and in some regions, the amount of plastic film residues has reached over 250 kg/hm2. In part of the Northwest region, soil structure of farmland has been destroyed by plastic film residues and then crop growth and farming operations were suppressed. It is recognized as a good choice to replace plastic film with biodegradable plastic film, an effective measure to solve the plastic film residue pollution. Now, it is in a critical stage of study and assessment of biodegradable plastic film in China and fortunately some biodegradable plastic films show effects in the production of potatoes, peanuts and tobacco. Overall, a series of challenges has still been faced by the biodegradable plastic film, mainly including improving the quality of biodegradable plastic products, such as tensile strength, flexibility, improving the controllability of rupture and degradation, enhancing the ability of increasing soil temperature and preserving soil moisture, and to satisfy the demand of crops production with mulching. In addition, it is essential to reduce the cost of the biodegradable film and promote the application of biodegradable film on large-scale. With the development of biodegradable plastic technology and agricultural production environment, the application of the biodegradable film will have a good future. PMID- 29019185 TI - [Progress in bio-based polyamides]. AB - Bio-based polyamides are environment-friendly polymers. The precursors of bio based polyamides come from bio-based materials such as castor oil, glucose and animal oil. Bio-based polyamides precursors include bio-based amino acids, bio based lactams, bio-based diprotic acid and bio-based diamines. In this paper, we discussed the route of the precursors of bio-based polyamides that come from bio based materials. We discussed the properties of bio-based polyamides. Bio-based PA11and bio-based PA1010 are well-known bio-based polyamides; we discussed the origin materials of the precursors, the route of manufacturing bio-based PA11 and PA1010, and their modifications status. The variety, classification and commercial production of bio-based polyamides were described in details, as well as bio-based polyamides development in China. PMID- 29019186 TI - [Development and perspective of bio-based chemical fiber industry]. AB - Bio-based fiber is environment friendly, reproducible, easily biodegradable. Therefore, rapid development of bio-based fiber industry is an obvious in progress to replace petrochemical resources, develop sustainable economy, build resource saving and environment friendly society. This article describes the current development of bio-based fiber industry, analyzes existing problems, indicates the trends and objectives of bio-based fiber materials technology innovation and recommends developing bio-based fibers industry of our country. PMID- 29019187 TI - [Processing, properties and application of poly lactic acid (PLA) fiber]. AB - Poly lactic acid (PLA) fibers a biodegradable fiber produced from PLA resin by melt spinning, solvent spinning or electrostatic spinning. Based on the excellent safety, comfortability, environmental protection and good mechanical properties, PLA can be widely applied in textile fabric, nonwoven, filler fabric and many downstream health products application, such as sanitary napkins, baby diapers, facial masks, and wipes. PMID- 29019188 TI - [Recent advances in nucleating agents used for poly (lactic acid)]. AB - Poly (lactic acid) (PLA) is a polymer synthesized from lactic acid with good biocompatibility and biodegradability. At present, PLA manufactured on industrial scale is mainly synthesized from L-lactic acid. The obtained products have good transparency but poor heat resistance. Adding nucleating agents could increase the crystallinity of PLA, to improve heat resistance. We reviewed the progress of research on organic and inorganic nucleating agents that can be used for PLA synthesis. PMID- 29019189 TI - [Improved protein-A chromatography for monoclonal antibody purification]. AB - Therapeutic monoclonal antibodies become the major product class within the biopharmaceutical market. Protein A as the first capture step is still dominant in current platforms for purification of monoclonal antibodies. In this study, we developed a new antibody harvest process that incorporates acidic treatment of cell harvest, demonstrating high process yield, improved clearance of host cell associated contaminants, like non-histone host cell protein, histone, DNA and heteroaggregates. Host protein contamination was reduced about 10-fold compared to protein A loaded with harvest clarified by centrifugation and microfiltration. Turbidity increase of eluted IgG upon pH neutralization was nearly eliminated. Residual levels of impurities in the protein A eluate were achieved that potentially meet requirements of drug substance and thus alleviate the burden for further impurities removal in subsequent chromatography steps. The mechanism of host cell associated contaminants removal during acidic treatment was also explored. After a polishing step by Capto adhere, host cell protein was reduced to less than 5 ppm, DNA less than 1 ppb, histone to undetectable level, heteroaggregates less than 0.01% with total IgG recovery around 87%. This efficient process can be easily integrated into current IgG purification platforms, and may overcome downstream processing challenges. PMID- 29019190 TI - [Isolation, purification of collagen from soft-shelled turtle calipash for application in biomaterial]. AB - Recently, research on collagen attracts more interests due to its good biological compatibility. The present study attempted to establish a fast and efficient method to purify collagen from soft-shelled turtle and to explore its application in biological materials. The structure and type of collagen fiber in calipash were determined by van Gieson staining and Picrosirius red staining, which could contribute to the isolation of collagen from soft-shelled turtle Calipash (STCC). Collagen fibers were in high content and the main collagen fiber was type I in STCC. The crude STCC solution was purified by dialysis with different cut-off molecular weight. SDS-PAGE demonstrated that the best purification was in applying 100 kDa dialysis bags after 48 h. The water absorbing capacity and holding capacity of STCC were up to 12.06 g/g and 98.21%, respectively. STCC can be degraded by collagenase in vitro entirely after 72 h. The hemolysis, skin sensitization, hemostatic and wound healing of STCC were determined by using SD rat model, and the collagen cross-linked by glutaric dialdehyde was set as a comparison. STCC and STCC cross-linked did not result in destructed red blood cell, inflamed and sensitized skin. Both materials exhibited good hemostatic effect. Thus, STCC improved the wound healing efficiently. This study implies a potential of STCC in the field of biomaterial. PMID- 29019191 TI - [Synthesis and characterization of polylactide-based thermosetting polyurethanes with shape memory properties]. AB - A series of bio-based thermosetting polyurethanes (Bio-PUs) were synthesized by the crosslinking reaction of polylactide and its copolymers diols with hexamethylene diisocyanate (HDI) trimer. The obtained Bio-PUs were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), Thermal Gravimetric Analysis (TGA), universal tensile testing machine and cytotoxicity test. Results indicate that the PLA copolymer (P(LA-co CL)) diols reduced the glass transition temperature (Tg) of Bio-PUs and improved their thermal stability, compared with PLA diols. The Bio-PUs synthesized from P (LA-co-CL) diols exhibit better mechanical performance and shape memory properties. Especially, Young modulus and elongation at break of the obtained Bio PUs were 277.7 MPa and 230% respectively; the shape recovery time of the obtained Bio-PUs at body temperature was only 93 s. Furthermore, alamar blue assay results showed that the obtained Bio-PUs had no cell toxicity. PMID- 29019192 TI - [Effect of glyceryl triacetate on properties of PLA/PBAT blends]. AB - Poly lactic acid (PLA)/Poly (butyleneadipate-co-terephthalate)(PBAT) and glyceryl triacetate (GTA) blend were prepared by torque rheometer, and the effect of GTA on thermodynamical performance, mechanical properties and microstructure of PLA/PBAT composites were studied using differential scanning calorimeter(DSC), dynamic mechanical analysis(DMA), universal testing machine, impact testing machine and scanning electron microscope(SEM). After adding GTA, Tg values of the two phases gradually became closer, blends cold crystallization temperature and melting temperature decreased. When with 3 phr GTA, the dispersed phase particle size of PLA/PBAT blend decreased. Mechanics performance test showed that the elongation at break and impact strength of the PLA/PBAT blend was greatly increased with 3 phr GTA, and the elongation at break increased 2.6 times, improved from 17.7% to 64.1%. PMID- 29019193 TI - [Advances in stress response of DNA binding with one finger transcription factor family genes in graminaceous plants]. AB - Transcription factor is a key trans-acting factor to mediate stress response by regulating gene expression. Plants have developed a series of mechanisms to modulate development, stress response, signaling and disease resistance at transcription level. DNA binding with one finger (DOF), containing one C2-C2 zinc finger domain, is a special plant transcription factor. Specifically, the conserved domain at N-terminus of DOF has multiple functions, including interacting with DNA and protein, which could be involved in plant development and stress response. Although many DOF family genes are characterized in plant stress response, it is not clear if DOF genes have functions in cereal plants. In the present paper, the role of DOF family genes on cereal plants were discussed based on a comprehensive phylogenetic relationship analysis, expression profiles in different tissues and various environmental conditions. The results obtained here will provide an important reference for further understanding the mechanism of gramineous crops in stress resistance. PMID- 29019194 TI - [Research progress in hydroxylase in taxol biosynthetic pathway]. AB - Taxol is a secondary metabolite with prominent anti-tumor activity, but the yield cannot meet the growing clinical demand due to lower content in yew. Now, most enzyme genes involved in taxol biosynthesis have been cloned and identified, so that obtaining this drug by using synthetic biology method has become a hotspot in recent years. However, most hydroxylases involved in taxol biosynthetic pathway have not been explored. Here, we reviewed the progress on the biosynthesis pathway of taxol, especially concerning hydroxylase. The future research areas of taxol biosynthesis through synthetic biology were also discussed to provide basis for the discovery of uncharacterized hydroxylase genes and the mass taxol production by synthetic biology technology. PMID- 29019195 TI - [Advances in tumor-therapy using genetically modified Salmonella]. AB - Tumor is a neoplasm formed by the abnormal proliferation of local tissue cells under the effects of different tumorigenic factors. Tumor-therapy has always been a difficult clinical issue, while regular cancer treatments, such as radiotherapy, chemotherapy and surgery, have obvious limitations. Earlier studies have shown that some obligate anaerobes or facultative anaerobes have anti-tumor effects, for example, Salmonella typhymurium as facultative anaerobic bacteria can selectively colonize tumors and inhibit their growth. Besides, Salmonella has many advantages in tumor-therapy. In the past decade or two, many researchers have carried out genetic manipulation to attenuate the virulence of Salmonella, to improve their specificity of tumor colonization and specially to use attenuated Salmonella as carriers to deliver a variety of anti-tumor therapeutic molecules, and these genetically modified Salmonella have shown good anti-tumor effects in many animal experiments. Along with further research of Salmonella mediated antitumor treatment, applications of genetically modified Salmonella for more effective tumor-therapy are promising. We reviewed the anti-tumor mechanisms of Salmonella, the research progress in tumor-therapy using genetically modified Salmonella, and current problems and possible solutions. PMID- 29019196 TI - [Prokaryotic expression and immunogenicity of IgG-binding protein of Streptococcus equi subspecies equi]. AB - To analyze the immunogenicity and protective ability of recombinant IgG-binding protein (EAG) of Streptococcus equi subspecies equi and to evaluate its value when used as equine vaccine antigen, EAG gene was amplified by PCR and inserted into pET-28a vector. The EAG recombinant proteins were expressed and purified to immune mice. The serum antibody and challenge protection were tested. The purified recombinant protein of EAG was 26 kDa, and the protein reacted specifically with positive serum of Streptococcus equi subspecies equi. The mice antibody level for EAG immunization group was 1?8 100. The immunological protection result showed that the protection rate of the EAG recombinant protein was 90%. The results suggested that the EAG protein has good immunogenicity and immunological protection, and it can effectively increase the humoral immune response and immunological protection of mice. PMID- 29019197 TI - [Transcriptome analysis of Pichia pastoris in response to ethanol stress]. AB - Effective expression of pIFN-alpha in recombinant Pichia pastoris was conducted in a 5 L fermentor. Ethanol accumulation during the late glycerol feeding period inhibited heterologous protein expression. Comparative transcriptome analysis was thus performed to compare the gene transcription profiles of Pichia pastoris KM71H in high and low ethanol concentration environments. The results showed that during the glycerol cultivation stage, 545 genes (265 up-regulated and 280 down regulated) were differentially expressed with ethanol stress. These genes were mainly involved in protein synthesis, energy metabolism, cell cycle and peroxisome metabolism. During the methanol induction stage, 294 genes (171 up regulated and 123 down-regulated) were differentially expressed, which were mainly related to methanol metabolism, amino acid metabolism and protein synthesis. Ethanol stress increased protein misfolding and reduced structural integrity of ribosome and mitochondria during cultivation stage, and led to the failure of endoplasmic reticulum stress removal and damaged amino acid metabolism during induction stage in Pichia pastoris. PMID- 29019198 TI - [Isolation, identification and structural characterization of secondary metabolites from amarine sponge-derived rare actinobacterium Dermacoccus sp. X4]. AB - We isolated and identified the symbiotic and adnascent microorganisms from an unidentified sponge collected from 10-meter-deep seawater of the Paracel Islands in China. A total of 16 strains were obtained and identified. Through bacteriostatic activity assay, one of the strains, Dermacoccus sp. X4, was found to effectively inhibit the growth of Staphylococcus aureus. Subsequently, its secondary metabolites were purified by silica gel partition, octadecylsilane (ODS) reverse phase, SephadexTMLH-20 size exclusion, and C18 reverse phase chromatography. Using liquid chromatography, mass spectrometry, and nuclear magnetic resonance, three of the purified compounds were structurally characterized to be one 3-(4-hydroxybenzyl) hexahydropyrrolo [1,2-a]pyrazine-1,4 dione and two indole acid glycerides. This is the first report about indole acid glyceride isolated from microbial secondary metabolites, enriching marine drug candidate resources. PMID- 29019199 TI - [Molecular cloning, in vitro expression and bioactivity of TRAIL (TNFSF10) gene from finless porpoises]. AB - To construct soluble TNF related apoptosis inducing ligand (TRAIL) expression system and investigate the effect of the expression product on tumor cell. It may provide valuable information for research into the immune system of the finless porpoise. The full-length cDNA of TRAIL (designated fTRAIL) was cloned from the total RNA of the finless porpoises blood using RT-PCR techniques and then the extracellular soluble fragments of fTRAIL (designated fsTRAIL) was ligated into pET43.1a. Recombinant soluble fTRAIL (pET43.1a-fsTRAIL) fused with Nus-his tag was efficiently expressed in Escherichia coli BL21 (DE3) and the Nus-His-fsTRAIL protein was purified. The expression of Nus-His-fsTRAIL was verified by Western blotting. In vitro, the effects of the purified Nus-His-fsTRAIL protein on Jurkat and HeLa cells were etected by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrasodium bromide (MTT) assay, TrypanBlue and Flow Cytometry analysis. The expression system pET43.1a-fsTRAIL was constructed and Nus-His-fsTRAIL protein was expressed successfully. In vitro, the Nus-His-fsTRAIL protein was able to inhibit the proliferation and induce apoptosis of Jurkat and HeLa cells in a dose dependent manner. The Nus-His-fsTRAIL protein has anti-tumor activity against Jurkat and HeLa cells in vitro. PMID- 29019200 TI - [Effects of copper on biodegradation mechanism of trichloroethylene by mixed microorganisms]. AB - We isolated and enriched mixed microorganisms SWA1 from landfill cover soils supplemented with trichloroethylene (TCE). The microbial mixture could degrade TCE effectively under aerobic conditions. Then, we investigated the effect of copper ion (0 to 15 MUmol/L) on TCE biodegradation. Results show that the maximum TCE degradation speed was 29.60 nmol/min with 95.75% degradation when copper ion was at 0.03 MUmol/L. In addition, genes encoding key enzymes during biodegradation were analyzed by Real-time quantitative reverse transcription PCR (RT-qPCR). The relative expression abundance of pmoA gene (4.22E-03) and mmoX gene (9.30E-06) was the highest when copper ion was at 0.03 MUmol/L. Finally, we also used MiSeq pyrosequencing to investigate the diversity of microbial community. Methylocystaceae that can co-metabolic degrade TCE were the dominant microorganisms; other microorganisms with the function of direct oxidation of TCE were also included in SWA1 and the microbial diversity decreased significantly along with increasing of copper ion concentration. Based on the above results, variation of copper ion concentration affected the composition of SWA1 and degradation mechanism of TCE. The degradation mechanism of TCE included co metabolism degradation of methanotrophs and oxidation metabolism directly at copper ion of 0.03 MUmol/L. When copper ion at 5 MUmol/L (biodegradation was 84.75%), the degradation mechanism of TCE included direct-degradation and co metabolism degradation of methanotrophs and microorganisms containing phenol hydroxylase. Therefore, biodegradation of TCE by microorganisms was a complicated process, the degradation mechanism included co-metabolism degradation of methanotrophs and bio-oxidation of non-methanotrophs. PMID- 29019202 TI - [Structure and immunomodulatory activity of extracellular polysaccharide from Grifola frondosa]. AB - We aimed at analyzing the structure of extracellular polysaccharide A from Grifola frondosa (EXGFP-A) and testing its immunomodulatory activity. Structural analysis shows that EXGFP-A was a contained alpha-D-glucoside bond and pyranose ring. GC analysis reveals that EXGFP-A was mainly composed of rhamnose, arabinose, xylose, mannose, glucose, galactose, by the molar ratio of 0.28:0.31:0.30:0.06:7.98:0.61. The results of MTT(3-(4,5-Dimethylthiazol-2-yl) 2,5-diphenyltetrazolium bromide) assay indicates when EXGFP-A was at a concentration of 80 MUg/mL and treatment time of 48 h, RAW264.7 cells proliferation index reached a maximum of 137.5%. Meanwhile, the AO staining showed that EXGFP-A activated RAW264.7 cells and improved the level of intracellular nucleic acid metabolism. In addition, in a certain range of concentration, EXGFP-A was able to increase the release of NO in RAW264.7 cells, and upregulate the mRNA expression of immunological factor TNF-alpha, IL-1beta, IL-6, IL-12, IFN-gamma and iNOS of RAW264.7 cells. Our results confirm that EXGFP A had immunomodulatory activity. Our findings provided scientific basis for the structural analysis and application of Grifola frondosa polysaccharide. PMID- 29019201 TI - [Cloning and expression profile of Bmlin-41 and its regulation by the silkworm microRNA let-7]. AB - The heterochronic genes regulate cell proliferation and switch development stage transitions. Heterochronic genes might also play important roles in regulating the development of silkworm, but very few of their expression profiles, functions and their relationship with microRNAs are available so far. Firstly, in this work, the primers for cloning Bmlin-41 were designed based on the homologous sequence of known Drosophila melanogaster lin-41, which was used as the query to blast against SilkDB. The obtained full CDS (2 166 bp) of Bmlin-41 encodes 721 amino acids and contains B-box and NHL domains. Then, the spatiotemporal expression patterns of Bmlin-41 were characterized by RT-PCR, quantitative real time PCR as well as our lab's previous silkworm genome microarray data. Bmlin-41 was increasingly expressed from embryonic to adult stage. In diverse tissues of day-3 fifth instar, Bmlin-41 showed the highest accumulation in ovary, secondly in testis and midgut, but very low expression was observed in other tissues. Finally, 3'UTR of Bmlin-41 1 434 bp was cloned by rapid-amplification of cDNA ends (3'RACE) and was predicted to bare two binding sites of bmo-let-7 by using online RNAhybrid. To verify the binding effect, 3'UTR was cloned into psi-CHECK-2 vector and submitted to dual luciferase assay in the S2 cells in vitro. The dual luciferase assay demonstrated that Bmlin-41 was down-regulated by bmo-let-7 mimics and upregulated by bmo-let-7 antagomir, thus confirming the Bmlin-41 is negatively regulated by bmo-let-7. Our work might help further study on the roles of Bmlin-41 and bmo-let-7 and their regulation relationship involved in controlling metamorphosis of silkworm. PMID- 29019203 TI - [Analysis of exogenous gene and protein digestion and absorption of SD rats (Rattus norvegicus) fed roundup ready soybean meal]. AB - Metabolism and deposition of exogenous gene and protein from transgenic glyphosate herbicide-tolerant soybean meal in SD rats were studied in the experiment. The transgenic soybean GTS40-3-2 meal and its non-transgenic counterpart (parent A5403) were fed to the generation and the second generation Sprague-Dawley (SD) rats (Rattus norvegicus). The study added the genetically modified (GM) soybean meal and its non-transgenic control soybean meal (parent A5403) in a ratio of 20% respectively to the feeds. By using qualitative, quantitative PCR and ELISA methods to detect transgenic soybean residues of metabolism ingredients in rats, the safety and influence of GM soybean were evaluated. The results showed that the intestinal fecal and cecum contents of rats were detected with residues of GM ingredients, intestinal flora and organs were not found related genes and protein. These results indicated that transgenic glyphosate herbicide-tolerant soybean GTS40-3-2 meal was as safe as its non-GM soybean meal in long-term feeding study. PMID- 29019204 TI - [Molecular recognition mechanism and motion of HCV NS3/4A protease with Faldaprevir analogue]. AB - Faldaprevir analogue molecule (FAM) has been reported to effectively inhibit the catalytic activity of HCV NS3/4A protease, making it a potential lead compound against HCV. A series of HCV NS3/4A protease crystal structures were analyzed by bioinformatics methods, and the FAM-HCV NS3/4A protease crystal structure was chosen for this study. A 20.4 ns molecular dynamics simulation of the complex consists of HCV NS3/4A protease and FAM was conducted. The key amino acid residues for interaction and the binding driving force for the molecular recognition between the protease and FAM were identified from the hydrogen bonds and binding free energy analyses. With the driving force of hydrogen bonds and van der Waals, FAM specifically bind to the active pocket of HCV NS3/4A protease, including V130-S137, F152-D166, D77-D79 and V55, which agreed with the experimental data. The effect of R155K, D168E/V and V170T site-directed mutagenesis on FAM molecular recognition was analyzed for their effect on drug resistance, which provided the possible molecular explanation of FAM resistance. Finally, the system conformational change was explored by using free energy landscape and conformational cluster. The result showed four kinds of dominant conformation, which provides theoretical basis for subsequent design of Faldaprevir analogue inhibitors based on the structure of HCV NS3/4A protease. PMID- 29019205 TI - [Construction and characterization of an attenuated recombinant Listeria monocytogenes vector vaccine delivering HPV16 E7]. AB - Listeria monocytogenes (L. monocytogenes, LM) is an excellent tumor vaccine vector. In this study, recombinant LM vaccine candidate expressing human papillomavirus type 16 (HPV16) E7 protein was constructed and its charactericts were determined. Through homologous recombination, E7 gene was cloned in frame with the LM4 Phly promoter-signal sequence, and introduced into the chromosome of LM4. The recombinant strain named LM4?hly::E7 with the plasmid-free and antibiotic-resistant gene-free was constructed. LM4?hly::E7 could express and secrete E7-LLO fusion protein; its size is 66 kDa and has immunological activity. Furthermore, LM4?hly::E7 could multiply in RAW264.7 macrophages by confocal laser scanning microscope. Additionally, LM4?hly::E7 could induce specific antibodies against E7 in immunized mice in ELISA. Also, the 50% lethal dose (LD50) of LM4?hly::E7 strain was 3.863*109 CFU (Colony-Forming Units) in C57BL/6 mice with intraperitoneal immunization, which was more attenuated than wild type LM4. Mice immunized with LM4?hly::E7 did not show obvious pathological change. These data show that LM4?hly::E7 expressing E7-LLO fusion protein has good safety, which may provide the materials for research of antitumor effect and would be a promising vaccine candidate for cervical cancer. PMID- 29019206 TI - [Bioinformatics analysis of sequence and structure of insulin-like growth factor I receptor]. AB - The length of IGF1R 3'UTR is greater than 7 kb. The structure of IGF1R 3'UTR is complex, with multiple binding sites of miRNAs. IGF1R is involved in the regulation of MAPK and PI3K/AKT signaling pathways and theformation and development of tumors. Bioinformatics analysis can reveal the structure features of IGF1R, which provides ideas for further research. The analysis shows that the binding sites between IGF1R and miRNAs have the highest mutation rate in Neuroblastoma. We analyzed the structure of 3'UTR, miRNAs binding sites, physical and chemical properties, hydrophilic-hydrophobic property, glycosylation and phosphorylation sites, secondary structure and tertiary structure modeling of IGF1R. The locations and names of amino acids interacting in IGF1R and IGF1 were obtained by molecular docking. Therefore, if IGF1R 3'UTR is mutated, the capacity of IGF1R combined with miRNAs will reduce and the IGF1R expression will be up regulated, and the function of miRNAs will be repressed. We can change the sites of IGF1R to combine with IGF1 to repress the function of IGF1R and IGF1. Then the function of IGF1R will be repressed. PMID- 29019207 TI - [Retrospect and prospect of transgenic fish breeding in China]. AB - The first transgenic fish was generated in China about 30 years ago. Since then, considerable progress has been achieved for farmed fishes breeding with improvement of target traits of growth, disease resistance, stress tolerance, and nutrition qualities. Up to now, the technology of transgenic fish breeding is almost mature and the biosafety assessment is established. In this review, a successful example of the fast-growing transgenic common carp was presented and the foreground of transgenic fish breeding was also discussed and prospected. PMID- 29019208 TI - [Research progress of CRISPR-Cas9 system for gene therapy]. AB - The clustered regulatory interspaced short palindromic repeat-Cas9 (CRISPR-Cas9) system is the part of the prokaryotic immune system, which could recognize and delete the exogenous sequences originated from virus or plasmid. Based on its mechanism, CRISPR-Cas9 system was developed into the new generation of gene editing tool. Compared to the existed technologies such as ES targeting, ZFN or TALEN, CRISPR-Cas9 system is a more efficient, economical and promising approach to manipulate the genome. In this review, we summarize the research progress about CRISPR-Cas9 technology, especially the latest applications in gene therapy studies of human diseases. PMID- 29019209 TI - [Function of SIRT6 in tumor initiation and progression]. AB - As a member of the sirtuins family, also called Class III histone deacetylases (HDACs), SIRT6 has many catalytic enzyme activities and plays a pivotal role in biological processes including anti-aging, chromatin regulation, transcriptional control, glucose and lipid metabolism, and DNA damage repair. Recently, increasing evidences indicated that SIRT6 was related to initiation and development of tumors, such as hepatic cancer, lung cancer, breast cancer and genital system tumors. However, SIRT6 might play a dual role in tumorigenesis and progression. SIRT6 often acted as a tumor suppressor, but might play an oncogenic role. Based on our current study, we depicted the essential roles of SIRT6 in the initiation and progression of various tumors, and summarized its mode of actions, which might provide clues for cancer therapy. PMID- 29019210 TI - [Progress on cellulosic ethanol produced from beet pulp]. AB - Cellulosic ethanol, with the advantages of renewable resource, cleanliness and safety, is the mainstream of new energy development and has obtained extensive attention worldwide. In this review, the biological characteristics of beets were introduced, and then the superiority and application progress of beets and its by product sugar beet pulp in the bioethanol production were stated. At last, cellulosic ethanol production coupled with the component separation and comprehensive utilization of beet pulp was proposed. PMID- 29019211 TI - [Cloning, eukaryotic expressing and function analysis of Schistosoma japonicum apoptosis gene Sjcaspase3]. AB - For further research of the apoptosis mechanism of Schistosoma japonicum (S. japonicum). The cDNA encoding Sjcaspase3 of Schistosoma japonicum was amplified by polymerase chain reaction (PCR) technique, which contained 900 nucleotides and encoded 299 amino acids. The theory molecular weight and isoelectric point (PI) of the deduced protein is 33.5 kDa and 6.39, respectively. Real-time PCR was used to analyze the transcription profiles of Sjcaspase3 at different development stages of S. japonicum. The results showed that this gene was expressed in all stages of S. japonicum with the highest expression in 21d worms, and the level of gene transcription in 42 d female worms was higher than that of male worms. The recombinant plasmid pXJ40-FLAG-Sjcaspase3 was constructed and transfection into Hela cells successfully. Real-time PCR and Western blotting analysis showed Sjcaspase3 was successfully expressed in Hela cells. Enzyme activity analysis revealed that recombinant Sjcaspase3 possessed the activity to cut substrate DEVD. Flow cytometry proved that Sjcaspase3 could induce early apoptosis of Hela cells. The results provide the basis for proceeding further study on the biological function of Sjcaspase3 and better understand the apoptosis mechanism of S. japonicum. PMID- 29019212 TI - [Effect of integration loci of genome on heterologous gene expression in Saccharomyces cerevisiae]. AB - Chromosomal integration of heterologous genes or pathways is preferred over the use of episomal plasmids for its inherently stability and thus more desirable in the industrial setting. However, the position of integration of heterologous genes in the genome influences the expression levels. In combination of high throughput transformation of the Yeast Knock-out Collection (YKO) and FACS analysis, the position effect on heterologous reporter gene gfp was identified across the whole genome in yeast. In total 428 high-expressed sites and 444 low expressed sites were spotted, providing massive data to analyze patterns and reasons for region dependency of gene expression on the genome-wide scale. PMID- 29019213 TI - [Expression and characterization of a novel omega-transaminase from Burkholderia phytofirmans PsJN]. AB - Production of chiral amines and unnatural amino-acid using omega-transaminase can be achieved by kinetic resolution and asymmetric synthesis, thus omega transaminase is of great importance in the synthesis of pharmaceutical intermediates. By genomic data mining, a putative omega-transaminase gene hbp was found in Burkholderia phytofirmans PsJN. The gene was cloned and over-expressed in Escherichia coli BL21 (DE3). The recombinant enzyme (HBP) was purified by Ni NTA column and its catalytic properties and substrate profile were studied. HBP showed high relative activity (33.80 U/mg) and enantioselectivity toward beta phenylalanine (beta-Phe). The optimal reaction temperature and pH were 40 C and 8.0-8.5, respectively. We also established a simpler and more effective method to detect the deamination reaction of beta-Phe by UV absorption method using microplate reader, and demonstrated the thermodynamic property of this reaction. The substrate profiling showed that HBP was specific to beta-Phe and its derivatives as the amino donor. HBP catalyzed the resolution of rac-beta-Phe and its derivatives, the products (R)-amino acids were obtained with about 50% conversions and 99% ee. PMID- 29019214 TI - [Molecular characteristics of two Phi glutathione S-transferases in Selaginella moellendorffii]. AB - Glutathione S-transferase (GST) is important in plants to resist various stresses. In this study, two Phi GST genes (SmGSTF1 and SmGSTF2) were cloned from Selaginella moellendorffii. SmGSTF1 and SmGSTF2 genes encode proteins of 215 amino acid residues. Gene expression analysis showed that the two genes were expressed in roots, stems and leaves. The recombinant SmGSTF1 and SmGSTF2 proteins were overexpressed in Escherichia coli, and purified by Ni-affinity chromatography. SmGSTF1 and SmGSTF2 had the catalytic activity towards 1-Chloro 2,4-Dieitrobenzene, 4-Chloro-7-nitro-1,2,3-benzoxadiazole (NBD-Cl), and 4 Nitrobenzyl chloride substrates. SmGSTF1 also had the activity towards Fluorodifen and Cumyl hydroperoxide (Cum-OOH), whereas SmGSTF2 not. The enzyme kinetics analysis showed that SmGSTF1 and SmGSTF2 had high affinity towards glutathione, and low affinity towards 1-Chloro-2, 4-Dieitrobenzene. The enzymatic activity of SmGSTF1 and SmGSTF2 had high catalytic activity between pH 7 and 8.5, and between 45 and 55 degrees C. SmGSTF1 and SmGSTF2 may have an important role in the resistance of Selaginella moellendorfii against stress. PMID- 29019215 TI - [Global proteomic and phosphoproteomic analysis of the premature maize anther]. AB - Reversible phosphorylation plays a crucial role in regulating protein activities and functions. Sexual reproduction directly affects yield of most agricultural crops. As the male reproductive organ, anther generates microspores (pollen), delivering gametes (sperms) to complete double fertilization in higher plants. Here, we took the advantage of Nano UHPLC-MS/MS to analyze maize (Zea mays, B73) early anthers at proteomic and phosphoproteomic levels, to explore the protein and phosphorylation modification regulatory networks controlling maize anther development. Our proteomic analysis identified 3 016 unique peptides, belonging to 1 032 maize proteins. MapMan analysis revealed variously potential proteins associated with maize anther development, such as receptor-like kinases (GRMZM2G082823_P01 and GRMZM5G805485_P01). Using phospho-peptides enriched by TiO2 affinity chromatography, our phosphoproteomic analysis detected 257 phospho peptides from 210 phosphoproteins, discovering 223 phosphosites. Compared to the 86 maize phosphoproteins collected in the Plant Protein Phosphorylation Data Base (P3DB), we found that 203 phosphoproteins and 218 phosphosites were not revealed before. Further bioinformatics analysis revealed that phosphorylation of 14-3-3 proteins, kinases, phosphatases, transcription factors, cell cycle and chromatin structure related proteins might play important roles in regulating normal anther development in maize. Our findings not only enlarged the maize phosphoproteome data, but also provided information for analyzing the molecular mechanism controlling maize anther development at genetic and biochemical levels. PMID- 29019216 TI - [An XcmI-generated T vector and its applications in synthetic biology]. AB - For more economical and efficient DNA clonging, pFL-XS-T, a Biobrick-T vector was constructed based on pMD18-T vector, carrying clonging regions of XbaI-XcmI-XcmI SpeI. The results revealed that PCR products could be conveniently inserted into pFL-XS-T vevtor digested by XcmIby means of TA cloning. The positive frequency of recombination can meet the experimental requirements and all the plasmids obtained meet Biobrick standard. Moreover, the pFL-XS-T is compatible with other Biobrick parts, and serves as a vector for functional DNA fragments screening. PMID- 29019217 TI - [Screening specific recognition motif of RNA-binding proteins by SELEX in combination with next-generation sequencing technique]. AB - RNA-binding protein exerts important biological function by specifically recognizing RNA motif. SELEX (Systematic evolution of ligands by exponential enrichment), an in vitro selection method, can obtain consensus motif with high affinity and specificity for many target molecules from DNA or RNA libraries. Here, we combined SELEX with next-generation sequencing to study the protein-RNA interaction in vitro. A pool of RNAs with 20 bp random sequences were transcribed by T7 promoter, and target protein was inserted into plasmid containing SBP-tag, which can be captured by streptavidin beads. Through only one cycle, the specific RNA motif can be obtained, which dramatically improved the selection efficiency. Using this method, we found that human hnRNP A1 RRMs domain (UP1 domain) bound RNA motifs containing AGG and AG sequences. The EMSA experiment indicated that hnRNP A1 RRMs could bind the obtained RNA motif. Taken together, this method provides a rapid and effective method to study the RNA binding specificity of proteins. PMID- 29019218 TI - [In vitro development and chimeric efficiency of mouse-porcine interspecies chimeric embryos in different culture systems]. AB - With the advancements of stem cells and regenerative medicine, interspecies chimera has become a hot topic and will pave a new way of providing donor sources in organ transplantation. However, the interspecies chimera is confronted with a number of scientific questions and technical obstacles, including selections of appropriate embryonic stage and appropriate culture medium; those factors will deeply influence the developmental balance between donor cells and receptor embryos. Due to its relatively rapid reproductive cycle and similar organ size to human's, porcine is a very potential donor candidate to study these questions. To compare the development and chimeric efficiency of interspecies embryos, we tested and evaluated three different culture systems, PZM-3 (Porcine zygotic medium), culture medium for iPSCs (N2B27) and 3.5 h of N2B27 before PZM-3 (N2B27(3.5 h)), and two different embryonic stages, 8-cell and blastocyst in mouse-porcine chimeric embryos using parthenogenetically activated porcine embryos and mouse induced pluripotent stem cells (miPS). The results showed that, PZM-3 was beneficial for both development of chimeric embryos and miPSCs proliferation in porcine embryos in the 8-cell injection group. After early blastocyst injection, the chimeric efficiency did not appear significantly different among the three culture systems but was lower than 8-cell injection. In summary, the results suggest that 8-cell injection and PZM-3 culture medium are more beneficial to the in vitro development and chimeric efficiency of mouse porcine chimeric embryos. PMID- 29019219 TI - [High-level production of glucose oxidase by recombinant Pichia pastoris using a combined strategy]. AB - To enhance the production of glucose oxidase by recombinant Pichia pastoris, two strategies were developed, which were namely co-feeding of methanol and sorbitol and co-expressing of the protein disulfide isomerase (PDI) and Vitreoscialla hemoglobin (VHb). The volumetric activity reached 456 U/mL by using the strain X33/pPIC9k-GOD, in 5 liter fermentator, with the co-feeding of methanol and sorbitol, it was 0.2 fold higher than that only feeding by methanol. The improved strain was obtained by co-expressing PDI-VHb with GOD. While fermented in a 5 liter fermentator by feeding methanol and sorbitol, the activity of the improved strain reached 716 U/mL with a yield of 7 400 mg/L total soluble protein concentration. These results indicated that heterologous protein expression level can be enhanced by optimizing fermentation condition and co-expression molecular chaperon in Pichia pastoris. PMID- 29019220 TI - [Secretory expression and characterization of heat sensitive nuclease in Pichia pastoris]. AB - Nucleases is an important enzyme widely used in biotechnology. A codon optimized nuclease gene (SNU) from Northern Shrimps was inserted into pPICZalpha A vector, and expressed extracellularly in strain SMD1168H. On the basis of multi-copy recombinant strain, we further optimized the expression condition and characterized SNU. SNU was highly expressed and stable after 1% methanol induction for 72 h, yield reached 1.4*105 U/mL. SDS-PAGE electrophoresis demonstrated that this is a N-linked glycoprotein of 50 kDa. It was purified by one step DEAE Sephadex chromatography to the purity of about 15 mg/L with a specific activity of 6.291*106 U/mg. Functional analysis on the nuclease activity indicated that it was stimulated by bivalent iron, such as Ca2+, Mn2+, Co2+ and Mg2+, but inhibited by Zn2+, Cu2+ and high salt. Meanwhile, it was irreversibly inactivated at 70 C for 10 min. PMID- 29019221 TI - [Traditional Chinese Medicine promotes the development of andrology]. AB - Andrology is an ancient branch of science which has gained a new development in the recent years and therefore has both traditional and modern characteristics. On the one hand, andrology keeps benefiting from the achievements of modern medicine and, on the other hand, it relies on the support of the theories of Traditional Chinese Medicine (TCM). An integration of Chinese and Western medical principles may further facilitate the development of andrology. TCM may contribute to the development of andrology by giving full play to its advantage as a psychosomatic medicine, enriching treatment strategies for male diseases with comprehensive TCM therapies, integrating the advantages of Western medicine to improve clinical efficacy, and normalizing the use of patent TCM drugs. PMID- 29019222 TI - [Differentiation of human umblical cord mesenchymal stem cells into Leydig cells in the rat testis interstitium: An experimental study]. AB - Objective: To explore the feasibility of inducing human umbilical cord mesenchymal stem cells (HUMSCs) to differentiate into Leydig cells in the interstitial tissue of the rat testis. METHODS: HUMSCs were obtained by tissue blocks culture attachment and their purity and multi-lineage differentiation ability were verified by flow cytometry and chondrogenic/adipogenic/osteogenic differentiation. Then the HUMSCs were marked by CM-Dil and transplanted into the interstitial tissue of the rat testis. At 4 and 8 weeks after transplantation, the survival and differentiation status of the HUMSCs were observed by immunofluorescence staining and flow cytometry. The suspension of the rat Leydig cells was obtained at 8 weeks for determining the expression of the Leydig cell marker 3beta-HSD in the HUMSCs, the cells labeled with CM-Dil were sorted and cultured, and the medium collected after 3 days of culture for measurement of the testosterone level. RESULTS: The expression of the Leydig cell marker CYPllal was not observed in the HUMSCs at 4 weeks but found at 8 weeks after transplantation and the differentiation rate of 3beta-HSD was about 14.5% at 8 weeks. CM-Dil labeled cells survived after sorting and testosterone was detected in the medium. CONCLUSIONS: HUMSCs are likely to differentiate into Leydig cells in the interstitium of the rat testis. PMID- 29019223 TI - [Expression of pituitary tumor-transforming gene 1 during the development of androgen-independent prostate cancer]. AB - Objective: To explore the expression of pituitary tumor transforming gene 1 (PTTG1) during the transformation of prostate cancer from androgen-dependent (ADPC) to androgen-independent (AIPC). METHODS: We established an AIPC cell model LNCaP-AI by culturing the androgen-dependent LNCaP cell line in the hormone deprived medium for over 3 months. The cell model was verified and the PTTG1 expression in the LNCaP cells was detected by Western blot and RT-PCR during hormone deprivation. RESULTS: The AIPC cell model LNCaP-AI was successfully established. The PTTG1 expression was gradually increased in the LNCaP cells with the prolonged time of hormone deprivation and the expressions of matrix metalloproteinases MMP-2 and -9 were elevated at the same time. CONCLUSIONS: The expression of PTTG1 is increased gradually in AIPC, which may be a target of gene therapy for advanced prostate cancer. PMID- 29019224 TI - [Diagnostic value of immunohistochemistry and FISH for chromosome 12p in type II testicular germ cell tumors]. AB - Objective: To study the pathological morphology, immunohistochemical characteristics, and molecular changes of type II testicular germ cell tumors (TGCT) and investigate the possible value of immunohistochemistry and fluorescence in situ hybridization (FISH) in the diagnosis of TGCT. METHODS: We collected for this study 97 cases of TGCT, including 75 cases of seminoma, 17 cases of embryonal carcinoma, 11 cases of yolk sac tumor, 16 cases of mature teratoma, 3 cases of immature teratoma, and 1 case of epidermoid cyst, in which normal testicular tissue was found in 20 and non-TGCT in 6. We detected the expressions of different antibodies in various subtypes of TGCT by immunohistochemistry and determined the rate of chromosome 12p abnormality using FISH. RESULTS: The immunophenotypes varied with different subtypes of TGCT. SALL4 and PLAP exhibited high sensitivity in all histological subtypes. CD117 and OCT4 showed strongly positive expressions in invasive seminoma and germ cell neoplasia in situ (GCNIS) but not in normal seminiferous tubules. GPC3 was significantly expressed in the yolk sac tumor, superior to GATA3 and AFP in both range and intensity. CKpan, OCT4, and CD30 were extensively expressed in embryonal carcinoma, while HCG expressed in choriocarcinoma. The positivity rate of isochromosome 12p and 12p amplification in TGCT was 96.7% (29/30). CONCLUSIONS: The majority of TGCT can be diagnosed by histological observation, but immunohistochemical staining is crucial for more accurate subtypes and valuable for selection of individualized treatment options and evaluation of prognosis. Chromosome 12p abnormality is a specific molecular alteration in type II TGCT, which is useful for ruling out other lesions. PMID- 29019225 TI - [Application value of real-time contrast-enhanced ultrasound in transrectal prostate biopsy]. AB - Objective: To explore the application value of real-time contrast-enhanced ultrasound (RTCEU) in improving the detection rate of transrectal ultrasound guided prostate biopsy. METHODS: This prospective study included 91 male patients with abnormally high PSA (4-20 MUg/L) or abnormalities in DRE or MRI, who underwent 12+X prostate biopsy following conventional transrectal ultrasonography (TRUS) and RTCEU examination. We compared the numbers of suspected prostatic nodules before and after RTCEU as well as the detection rates of prostate cancer between conventional TRUS-guided 12PBx and 12PBx plus lesion-targeted biopsy procedures. RESULTS: Totally, 57 of the 86 suspected lesions on TRUS (66.3%), and 108 of the 118 abnormal nodules on RTCEU (91.5%) were confirmed to be prostate cancer. RTCEU achieved a significantly higher detection rate than TRUS (P<0.01). A total of 39 cases of prostate cancer (42.8%) were detected by RTCEU, while only 28 (30.7%) by TRUS, with statistically significant difference in the detection rate between the two procedures (P=0.033). CONCLUSIONS: Real-time contrast enhanced ultrasound can significantly improve the detection rate of prostate cancer and provide a valuable guide to targeted prostate biopsy. PMID- 29019226 TI - [Secondary male hypogonadism induced by sellar space-occupying lesion: Clinical analysis of 22 cases]. AB - Objective: To analyze the clinical characteristics of secondary male hypogonadism induced by sellar space-occupying lesion, explore its pathogenesis, and improve its diagnosis and treatment. METHODS: We retrospectively analyzed the clinical data about 22 cases of secondary male hypogonadism induced by sellar space occupying lesion, reviewed related literature, and investigated the clinical manifestation, etiological factors, and treatment methods of the disease. Hypogonadism developed in 10 of the patients before surgery and radiotherapy (group A) and in the other 12 after it (group B). The patients received endocrine therapy with Andriol (n=7) or hCG (n=15). RESULTS: The average diameter of the sellar space-occupying lesions was significantly longer in group A than in B ([2.35+/-0.71] vs [1.83+/-0.36] cm, P<0.05) and the incidence rate of prolactinomas was markedly higher in the former than in the latter group (60% vs 0, P<0.01). The levels of lutein hormone (LH), follicle stimulating hormone (FSH) and testosterone (T) were remarkably decreased in group B after surgery and radiotherapy (P<0.01). Compared with the parameters obtained before endocrine therapy, all the patients showed significant increases after intervention with Andriol or hCG in the T level ([0.78+/-0.40] vs [2.71+/-0.70] ng/ml with Andriol; [0.93+/-0.44] vs [3.07+/-0.67] ng/ml with hCG) and IIEF-5 score (5.00+/-2.61 vs 14.50+/-3.62 with Andriol; 5.36+/-1.82 vs 15.07+/-3.27 with hCG) (all P<0.01). The testis volume increased and pubic hair began to grow in those with hypoevolutism. The patients treated with hCG showed a significantly increased testis volume (P<0.01) and sperm was detected in 7 of them, whose baseline testis volume was markedly larger than those that failed to produce sperm ([11.5+/-2.3] vs [7.5+/-2.3] ml, P<0.01). Those treated with Andriol exhibited no significant difference in the testis volume before and after intervention and produced no sperm, either. CONCLUSIONS: Hypothyroidism might be attributed to surgery- or radiotherapy-induced damage to the pituitary tissue, space-occupying effect of sellar lesion, and hyperprolactinemia. Both Andriol and hCG can improve the T level and erectile function, but the former does not help spermatogenesis. PMID- 29019227 TI - [Correlation of the inner diameter parameters of the spermatic vein in different positions and states of the varicocele patient with the results of seminal examination]. AB - Objective: To study the correlation of the inner diameter parameters of the spermatic vein in different positions and states of the varicocele (VC) patient with the results of seminal examination. METHODS: A total of 149 VC patients underwent ultrasonography, routine semen examination, and sperm morphological analysis. The parameters obtained from ultrasonography included the bilateral testis volume in a supine position, the largest spermatic vein diameter in a supine position at rest (DSR), the largest spermatic vein diameter in a supine position following Valsalva manoeuvre (DSV), the largest spermatic vein diameter in an upright position at rest (DUR), and the largest spermatic vein diameter in an upright position following Valsalva manoeuvre (DUV). Then we calculated the parameters ?DS=DSV-DSR, ?DU=DUV-DUR, ?DR=DUR-DSR, and ?DV=DUV-DSV and analyzed the correlation of the above parameters with the results of semen examination using the ROC curve. RESULTS: Based on the results of semen examination, 119 (79.87%) of the patients were allocated to the abnormal group and the other 30 (20.13%) to the normal group. Statistically significant differences were observed between the two groups in ?DU (P=0.007), ?DR (P=0.0001), and ?DV (P=0.04), but not in DSR (P=0.35), DSV (P=0.34), DUR (P=0.06), DUV (P=0.12), and ?DS (P=0.64), nor in the volume of the testis affected (P=0.323). The area under the ROC curve was 0.55 for DSR, 0.57 for DSV, 0.64 for DUR, 0.62 for DUV, 0.49 for ?DS, 0.28 for ?DU, 0.86 for ?DR, and 0.69 for ?DV. The corresponding cutoff values were 2.25, 2.51, 2.48, 2.63, 0.30, 0.23, 0.25, and 0.20, the corresponding sensitivities of semen detection were 50.42%, 65.55%, 60.50%, 60.50%, 49.90%, 29.41%, 79.83%, and 65.55%, and the corresponding specificities were 56.67%, 63.33%, 63.33%, 63.33%, 56.67%, 33.33%, 80%, and 63.33%, respectively. CONCLUSIONS: The difference between the largest spermatic vein diameters in supine and upright positions at rest provides a high diagnostic accuracy for semen detection and helps to predict abnormality in seminal examination for VC patients. PMID- 29019228 TI - [Psycho-social factors of sexual failure among newly married Uyghur young males]. AB - Objective: To study the psycho-social risk factors of sexual failure among newly married young males in the Uyghur population. METHODS: We conducted a paired case control study of 186 newly married Uyghur young males (aged 17-30 [23.4+/-2.9] yr) with sexual failure and another 186 (aged 18-34 [24.0+/-3.1] yr) with no such problem as controls. We performed a logistic regression analysis on the possible psycho-social risk factors of this condition. RESULTS: Logistic regression analysis showed that the risk factors of sexual failure among the newly married men included personality (OR=0.271, 95% CI 0.176-0.420), income (OR=0.391, 95% CI 0.264-0.580), history of masturbation (OR=0.824, 95% CI 0.710-0.956), premarital sex (OR=0.757, 95% CI 0.677-0.847), sense of obligation (OR=1.756, 95% CI 1.157 2.693), equality of the social status (OR=0.574, 95% CI 0.435-0.756), degree of mutual care (OR=1.605, 95% CI 1.268-2.032), female's psychological obstacle (OR=2.832, 95% CI 1.221-6.569), and religion (OR=0.643, 95% CI 0.472-0.967). There was a statistical significance in the correlation between these factors and sexual failure in the newly married males (all P<0.05). CONCLUSIONS: Sexual failure of newly married Uyghur young males are associated with many psycho social factors, which necessitates sexual education among young males and particularly pre-marriage sexual education and psychological guide among both males and females. PMID- 29019229 TI - [Transurethral resection of the prostate versus transurethral holmium laser enucleation of the prostate for benign prostatic hyperplasia with bladder detrusor overactivity]. AB - Objective: To compare and analyze the effects of transurethral resection of the prostate (TURP) and transurethral holmium laser enucleation of the prostate (HoLEP) in the treatment of benign prostatic hyperplasia (BPH) with bladder detrusor overactivity. METHODS: his study included 51 cases of BPH with bladder detrusor overactivity treated by TURP and another 58 treated by HoLEP. We evaluated the urination of the two groups of patients during the recovery period and at 3 and 6 months postoperatively. RESULTS: There were no statistically significant differences in such baseline data as the blood PSA level, prostate volume, International Prostate Symptom Score (IPSS), and quality of life (QOL) between the two groups of patients, except in effective bladder capacity, which was higher in the TURP than in the HoLEP group ([315+/-59] vs [287+/-76] ml, P<0.05). Urine storage symptoms were obviously improved in both of the groups postoperatively, with the storage symptoms score significantly decreased from 12.6+/-4.9 preoperatively to 7.5+/-3.9 at 3 months and 6.1+/-4.2 at 6 months after surgery in the TURP group (P<0.01) and from 13.7+/-5.7 to 7.9+/-4.2 and 7.0+/-5.1 in the HoLEP group (P<0.01). HoLEP manifested significant advantages over TURP in the postoperative urethral catheterization time ([2.7+/-0.8] vs [5.1+/-1.2] d, P<0.05), postoperative bladder contracture time ([4.1+/-1.9] vs [5.8+/-2.4] d, P<0.05), postoperative hospital stay ([4.4+/-1.8] vs [5.9+/-2.5] d, P<0.05), and improvement of the maximum urinary flow rate, which was increased from (7.9+/-3.7) ml/s preoperatively to (16.8+/-4.3) ml/s at 3 months after surgery in the HoLEP group and from (8.6+/-3.2) ml/s to (14.6+/-4.3) ml/s in the TURP group (P<0.05). CONCLUSIONS: Both TURP and HoLEP can improve bladder function and detrusor overactivity in BPH patients, with similar effects in improving urination at 3 to 6 months after surgery. However, HoLEP has more advantages over TURP during the period of postoperative recovery. PMID- 29019231 TI - [Application of microdissection testicular sperm extraction in non-obstructive azoospermia]. AB - The development of testicular sperm extraction (TESE) and intracytoplasmic sperm injection (ICSI) has made it possible for patients with non-obstructive azoospermia to have their own children. However, sperm retrieval by conventional TESE succeeds but in a subset of patients and, therefore, how to improve the success rate of sperm retrieval is becoming a focus of research. Recent studies suggest that microdissection TESE, although with its limitations, has obvious advantages over traditional sperm retrieval methods. This article presents an overview on the characteristics, predictive factors, sperm retrieval rate, post operative complications, and improvement of microdissection TESE. PMID- 29019230 TI - [Effect of salidroside on the expression of connexin43 in the corpus cavernosum smooth muscle cells of hypoxic rats]. AB - Objective: To investigate the effect of salidroside on the expression of the connexin43 (Cx43) protein in the corpus cavernosum smooth muscle cells (CCSMCs) of hypoxic SD rats. METHODS: CCSMCs were cultured in vitro and identified by immunofluorescence staining. The cells were divided into six groups: normal control (21% O2), hypoxia (1% O2), hypoxia+salidroside (HS) 8 MUg/ml,HS 16 MUg/ml, HS 32 MUg/ml, and HS 64 MUg/ml, and cultured for 48 hours. Then the relative expression of Cx43 in different groups was detected by Western blot. RESULTS: The in vitro cultured CCSMCs grew well and 90% of the cells showed positivity for alpha-SMA and desmin on immunohistochemistry. Salidroside <=64 MUg/ml produced no obvious toxicity on the CCSMCs. The expressions of Cx43 and phosphorylated proteins were dramatically increased in the hypoxia group as compared with the normal control (P<0.01 and P<0.05). The HS groups all showed significantly higher expression of Cx43 than the hypoxia group (P<0.01), but the phosphorylation rate of the Cx43 proteins was remarkably decreased (P<0.01). CONCLUSIONS: Hypoxia increases the expression of Cx43 in the CCSMCs of SD rats. Salidroside <=64 MUg/ml cannot reverse the hypoxia-induced change but can reduce the dephosphorylation of Cx43 in CCSMCs. It is deduced that salidroside can protect CCSMCs by decreasing the phosphorylation of Cx43 and suppressing hypoxia induced formation of the gap junction channel. PMID- 29019232 TI - [Prostatic urethral lift: A novel minimally invasive treatment for benign prostatic hyperplasia]. AB - Benign prostatic hyperplasia (BPH) and BPH-induced lower urinary tract symptoms (LUTS) are common factors influencing the quality of life (QOL) of elderly males. In case of undesirable or adverse effects of medication, many BPH patients seek surgical treatment. Transurethral resection of the prostate (TURP), though evidently effective for BPH, fails to preserve the sexual function and therefore reduces the QOL of the patients. Moreover, some elderly patients with comorbidities may be unfit for TURP. Prostatic urethral lift (PUL) is a newly developed surgical procedure for the treatment of LUTS secondary to BPH. With the advantages of minimal invasiveness, low rate of peri- and post-operative complications, and maximal preservation of patients' erectile and ejaculatory functions, PUL is winning more and more attention from the clinicians and patients. PMID- 29019233 TI - PEGylated Red-Emitting Calcium Probe with Improved Sensing Properties for Neuroscience. AB - Monitoring calcium concentration in the cytosol is of main importance as this ion drives many biological cascades within the cell. To this end, molecular calcium probes are widely used. Most of them, especially the red emitting probes, suffer from nonspecific interactions with inner membranes due to the hydrophobic nature of their fluorophore. To circumvent this issue, calcium probes conjugated to dextran can be used to enhance the hydrophilicity and reduce the nonspecific interaction and compartmentalization. However, dextran conjugates also feature important drawbacks including lower affinity, lower dynamic range, and slow diffusion. Herein, we combined the advantage of molecular probes and dextran conjugate without their drawbacks by designing a new red emitting turn-on calcium probe based on PET quenching, Rhod-PEG, in which the rhodamine fluorophore bears four PEG4 units. This modification led to a high affinity calcium probe (Kd = 748 nM) with reduced nonspecific interactions, enhanced photostability, two-photon absorbance, and brightness compared to the commercially available Rhod-2. After spectral characterizations, we showed that Rhod-PEG quickly and efficiently diffused through the dendrites of pyramidal neurons with an enhanced sensitivity (DeltaF/F0) at shorter time after patching compared to Rhod-2. PMID- 29019234 TI - A Sensitive Electrochemical Aptasensor for Thrombin Detection Based on Electroactive Co-Based Metal-Organic Frameworks with Target-Triggering NESA Strategy. AB - In this work, an improved target-triggering nicking enzyme signaling amplification (NESA) strategy as signal enhancer has been fabricated to obtain a sensitive electrochemical thrombin (TB) biosensor combined with PtPd NPs decorated electroactive Co-based metal-organic frameworks (Co-MOFs/PtPdNPs) as a redox mediator. Traditionally, in the NESA strategy, only one of the output double strands DNA is available in the next cycle. However, in this work, all of the output DNA involved in the improved NESA strategies could be further employed, resulting in high utilization of output DNA, which further enhanced signal amplification and sensitivity of the biosensor. In addition, the electroactive Co-MOFs were not only used as nanocarriers but also acted as signal labels, avoiding adding extra redox media. Simultaneously, in the presence of H2O2, PtPd NPs decorated on the Co-MOFs act the same as horseradish peroxidase to promote the oxidation of H2O2, further promoting the conversion of Co2+ to Co3+, leading to electrochemical signal amplification. With such design, the TB biosensor exhibited good sensitivity from 1 pM to 30 nM with a detection limit of 0.32 pM. This new NESA strategy with high utilization of output DNA can supply one efficient approach to improve signal amplification, which also open an avenue for sensitivity enhancement in detection of analytes. PMID- 29019236 TI - Fluctuation Scaling, Calibration of Dispersion, and Detection of Differences. AB - Fluctuation scaling describes the relationship between the mean and standard deviation of a set of measurements. An example is Horwitz scaling, which has been reported from interlaboratory studies. Horwitz and similar studies have reported simple exponential and segmented scaling laws with exponents (alpha) typically between 0.85 (Horwitz) and 1 when not operating near a detection limit. When approaching a detection limit, the exponents change and approach an apparently Gaussian (alpha = 0) model. This behavior is often presented as a property of interlaboratory studies, which makes controlled replication to understand the behavior costly to perform. To assess the contribution of instrumentation to larger scale fluctuation scaling, we measured the behavior of two inductively coupled plasma atomic emission spectrometry (ICP-AES) systems, in two laboratories measuring thulium using two emission lines. The standard deviation universally increased with the uncalibrated signal, indicating the system was heteroscedastic. The response from all lines and both instruments was consistent with a single exponential dispersion model having parameters alpha = 1.09 and beta = 0.0035. No evidence of Horwitz scaling was found, and there was no evidence of Poisson noise limiting behavior. The "Gaussian" component was a consequence of background subtraction for all lines and both instruments. The observation of a simple exponential dispersion model in the data allows for the definition of a difference detection limit (DDL) with universal applicability to systems following known dispersion. The DDL is the minimum separation between two points along a dispersion model required to claim they are different according to a particular statistical test. The DDL scales transparently with the mean and works at any location in a response function. PMID- 29019235 TI - The Impact of Protonation on Early Translocation of Anthrax Lethal Factor: Kinetics from Molecular Dynamics Simulations and Milestoning Theory. AB - We report atomically detailed molecular dynamics simulations of the permeation of the lethal factor (LF) N-terminal segment through the anthrax channel. The N terminal chain is unstructured and leads the permeation process for the LF protein. The simulations were conducted in explicit solvent with milestoning theory, making it possible to extract kinetic information from nanosecond to millisecond time scales. We illustrate that the initial event is strongly influenced by the protonation states of the permeating amino acids. While the N terminal segment passes easily at high protonation state through the anthrax channel (and the phi clamp), the initial permeation represents a critical step, which can be irreversible and establishes a hook in the channel mouth. PMID- 29019237 TI - Sugar-Assisted Photogeneration of Didehydrotoluenes from Chlorobenzylphosphonic Acids. AB - Irradiation of the three isomeric chlorobenzylphophonic acids in aqueous buffer led to a pH-dependent photochemistry. Under acidic conditions (pH = 2.5), photocleavage of the Ar-Cl bond occurred and a phenyl cation chemistry resulted. Under basic conditions (pH = 11), a photoinduced release of the chloride anion followed by the detachment of the metaphosphate anion gave alpha,n didehydrotoluene diradicals (alpha,n-DHTs), potential DNA cleaving intermediates. At a physiological pH (pH = 7.2), both a cationic and a diradical reactivity took place depending on the phosphonic acid used. It is noteworthy that the complexation exerted by a monosaccharide (glucose or methylglucopyranoside) present in solution induced an exclusive formation of alpha,n-DHTs. The mechanistic scenario of the different photoreactivities occurring when changing the pH of the solution and the role of the various intermediates (phenyl cations, diradicals, etc.) in the process was studied by computational analysis. PMID- 29019238 TI - Total Synthesis and Anti-inflammatory Evaluation of Penchinone A and Its Structural Analogues. AB - The first total synthesis and biological evaluation of penchinone A and its structural analogues are described. The key steps for the preparation of penchinone A derivatives involve the oxime-directed palladium(II)-catalyzed oxidative acylation, Claisen rearrangement, and base-mediated olefin migration. This transformation efficiently provides a range of allyl-substituted biaryl ketones with site-selectivity and functional group compatibility. In addition, all synthetic compounds were screened for anti-inflammatory activity against nitric oxide (NO), tumor necrosis factor alpha (TNF-alpha), and interleukin-6 (IL 6) with lipopolysaccharide (LPS)-induced RAW264.7 cells. Generally, a range of penchinone A derivatives potently inhibited NO, TNF-alpha, and IL-6 productions, compared to dexamethasone as a positive control. Notably, penchinone A (8g) and its derivatives (8e and 8f) were found to exhibit anti-inflammatory activity stronger than that of dexamethasone. PMID- 29019239 TI - Enhanced DC-Operated Electroluminescence of Forwardly Aligned p/MQW/n InGaN Nanorod LEDs via DC Offset-AC Dielectrophoresis. AB - We introduce an orientation-controlled alignment process of p-GaN/InGaN multiquantum-well/n-GaN (p/MQW/n InGaN) nanorod light-emitting diodes (LEDs) by applying the direct current (DC) offset-alternating current (AC) or pulsed DC electric fields across interdigitated metal electrodes. The as-forwardly aligned p/MQW/n InGaN nanorod LEDs by a pulsed DC dielectrophoresis (DEP) assembly process improve the electroluminescence (EL) intensities by 1.8 times compared to the conventional AC DEP assembly process under DC electric field operation and exhibit an enhanced applied current and EL brightness in the current-voltage and EL intensity-voltage curves, which can be directly used as the fundamental data to construct DC-operated nanorod LED devices, such as LED areal surface lightings, scalable lightings (micrometers to inches) and formable surface lightings. The enhancement in the applied current, the improved EL intensity, and the increased number of forwardly aligned p/MQW/n InGaN nanorods in panchromatic cathodoluminescence images confirm the considerable enhancement of forwardly aligned one-dimensional nanorod LEDs between two opposite electrodes using DC offset-AC or a pulsed DC electric field DEP assembly process. These DC offset-AC or pulsed DC electric field DEP assembly processes suggest that designing for these types of interactions could yield new ways to control the orientation of asymmetric p/MQW/n InGaN diode-type LED nanorods with a relatively low aspect ratio. PMID- 29019241 TI - Fine-Tuning of Photophysical and Electroluminescence Properties of Benzothiadiazole-Based Emitters by Methyl Substitution. AB - New benzothiadiazole-based materials containing methyl substitution are prepared and characterized as promising green/yellowish green emitters for electroluminescent applications. The dyes exhibited shorter wavelength absorption and emission when compared to nonmethylated dyes. A dye containing methyl group on the donor side exhibited blue shift in absorption and emission when compared to the analogous dye containing methyl group away from donor. The steric effect exerted by the methyl group is responsible for the nonplanar arrangement of donor and acceptor, which inhibited the intramolecular charge transfer. All the dyes displayed solvatochromism in the emission spectra characteristic of hybridization of local and charge transfer excited states. Due to the benefit of methyl group, the dyes restrained the formation of aggregates in the solid state. Solution processed multilayered OLED device were fabricated employing these compounds either as host emitters or dopant emitters in suitable host matrix and exhibited green/yellowish green electroluminescence with external quantum efficiency as high as 4.6% (15.7 cd A-1). PMID- 29019240 TI - pH-Dependent Assembly of Porphyrin-Silica Nanocomposites and Their Application in Targeted Photodynamic Therapy. AB - Structurally controlled nanoparticles, such as core-shell nanocomposite particles by combining two or more compositions, possess enhanced or new functionalities that benefited from the synergistic coupling of the two components. Here we report new nanocomposite particles with self-assembled porphyrin arrays as the core surrounded by amorphous silica as the shell. The synthesis of such nanocomposite nanoparticles was conducted through a combined surfactant micelle confined self-assembly and silicate sol-gel process using optically active porphyrin as a functional building block. Depending on kinetic conditions, these particles exhibit structure and function at multiple length scales and locations. At the molecular scale, the porphyrins as the building blocks provide well defined macromolecular structures for noncovalent self-assembly and unique chemistry for high-yield generation of singlet oxygen for photodynamic therapy (PDT). On the nanoscale, controlled noncovalent interactions of the porphyrin building block result in an extensive self-assembled porphyrin network that enables efficient energy transfer and impressive fluorescence for cell labeling, evidenced by absorption and photoluminescence spectra. Finally, the thin silicate shell on the nanoparticle surface allows easy functionalization, and the resultant targeting porphyrin-silica nanocomposites can selectively destroy tumor cells upon receiving light irradiation. PMID- 29019242 TI - Salivary Cystatins: Exploring New Post-Translational Modifications and Polymorphisms by Top-Down High-Resolution Mass Spectrometry. AB - Cystatins are a complex family of cysteine peptidase inhibitors. In the present study, various proteoforms of cystatin A, cystatin B, cystatin S, cystatin SN, and cystatin SA were detected in the acid-soluble fraction of human saliva and characterized by a top-down HPLC-ESI-MS approach. Proteoforms of cystatin D were also detected and characterized by an integrated top-down and bottom-up strategy. The proteoforms derive from coding sequence polymorphisms and post-translational modifications, in particular, phosphorylation, N-terminal processing, and oxidation. This study increases the current knowledge of salivary cystatin proteoforms and provides the basis to evaluate possible qualitative/quantitative variations of these proteoforms in different pathological states and reveal new potential salivary biomarkers of disease. Data are available via ProteomeXchange with identifier PXD007170. PMID- 29019243 TI - Label-Free Photoelectrochemical "Off-On" Platform Coupled with G-Wire-Enhanced Strategy for Highly Sensitive MicroRNA Sensing in Cancer Cells. AB - MicroRNA (miRNAs) quantification, especially at low abundance, is vital for disease diagnosis, prognosis, and therapy. Herein we develop a distinctive label free "off-on" configuration for photoelectrochemical (PEC) sensing platform fabrication, coupled with DNA four-way junction (4J) architecture as well as G wire superstructure for signal amplification. In addition, ultrathin copper phosphate nanosheets (CuPi NSs) coating Au nanoparticles (Au-CuPi NSs) serve as a highly efficient photocathode substrate. To improve the sensitivity, and avoid the false positive signals, the quencher, gold nanoparticles (GNPs), is utilized to switch off the PEC signal because of the commendable surface plasmon resonance (SPR) absorption. Subsequently, ingenious DNA 4J architecture is applied to export proportional c-myc regions for target quantification. Assisted with the G wire superstructure formation, the enhancer 5,10,15,20-tetra(4-sulfophenyl) 21H,23H-porphyrin (TSPP) is coupled on the substrate to switch on the PEC signal, thus realizing the miRNA assay with persuasive accuracy, high sensitivity, and low detection limit. In addition, we execute the miRNA detection in prostate carcinoma cell line 22Rv1, and acquire desirable quantitative capability. Remarkably, the prepared PEC sensing platform not only realizes the highly efficient miRNAs quantification, but also uncovers a marvelous horizon for sensing platform fabrication. PMID- 29019244 TI - Interindividual Variability in Metabolism of [6]-Shogaol by Gut Microbiota. AB - [6]-Shogaol (6S), one of the major bioactive components in dry ginger, is attracting considerable attention because of its wide spectrum of biological activities, but its metabolic fate is still not fully understood. In the present study, the microbial metabolism of 6S was examined for the first time in in vitro batch fecal fermentation system and in mice. Two major microbial metabolites were detected and identified as 1-(4'-hydroxy-3'-methoxyphenyl)-decan-3-ol (M9) and 1 (4'-hydroxy-3'-methoxyphenyl)-decan-3-one (M11). Our results indicated that reductions of the double bond and the ketone group are the major metabolic pathways of 6S by the human gut microbiota. We also observed the interindividual variability in the metabolism of M11 to M9 by human gut microbiota. In addition, we demonstrated that the glucuronidated form of 6S and its metabolites could be rapidly deconjugated by human gut microbiota and in mice, which can be regarded as a reactive process taking place in the intestinal tract. To our knowledge, this is the first report involving the identification of the microbial metabolites of 6S in an in vitro fermentation system, and the first demonstration of the critical role of gut microbiota in producing the bioactive free form of 6S and its metabolites in the intestinal tract in mice. PMID- 29019246 TI - Wearable Ring-Based Sensing Platform for Detecting Chemical Threats. AB - This work describes a wireless wearable ring-based multiplexed chemical sensor platform for rapid electrochemical monitoring of explosive and nerve-agent threats in vapor and liquid phases. The ring-based sensor system consists of two parts: a set of printed electrochemical sensors and a miniaturized electronic interface, based on a battery-powered stamp-size potentiostat, for signal processing and wireless transmission of data. A wide range of electrochemical capabilities have thus been fully integrated into a 3D printed compact ring structure, toward performing fast square-wave voltammetry and chronoamperometric analyses, along with interchangeable screen-printed sensing electrodes for the rapid detection of different chemical threats. High analytical performance is demonstrated despite the remarkable miniaturization and integration of the ring system. The attractive capabilities of the wearable sensor ring system have been demonstrated for sensitive and rapid voltammetric and amperometric monitoring of nitroaromatic and peroxide explosives, respectively, along with amperometric biosensing of organophosphate (OP) nerve agents. Such ability of the miniaturized wearable sensor ring platform to simultaneously detect multiple chemical threats in both liquid and vapor phases and alert the wearer of such hazards offers considerable promise for meeting the demands of diverse defense and security scenarios. PMID- 29019245 TI - Decalin-Containing Tetramic Acids and 4-Hydroxy-2-pyridones with Antimicrobial and Cytotoxic Activity from the Fungus Coniochaeta cephalothecoides Collected in Tibetan Plateau (Medog). AB - New tetramic acid derivatives, (+/-)-conipyridoins A-D (1-4), conipyridoins E (5) and F (6), and new 4-hydroxy-2-pyridone alkaloids (+/-)-didymellamide E (7), (+) didymellamide B (8), (+)-N-hydroxyapiosporamide (9), and didymellamides F-H (10 12) were isolated and identified from the solid culture of the fungus Coniochaeta cephalothecoides. Chiral resolution of 1, 2, 3, 4, and 7 gave five pairs of enantiomers: 1a/1b, 2a/2b, 3a/3b, 4a/4b, and 7a/7b, respectively. Stereochemistry of 1a and 1b, and 2a and 2b was established and confirmed by the single-crystal X ray diffraction and electronic circular dichroism (ECD) methods. Absolute configuration in 3a, 3b, 4a, 4b, 7a, and 7b was assigned by ECD calculations. Compounds 1-6 possess an unprecedented chemical skeleton featuring a decalin ring and a tetramic acid moiety. Compound 11 significantly inhibited the growth of Candida albicans and Aspergillus fumigatus with minimum inhibitory concentration (MIC) of 3.13 and 1.56 MUM, respectively, and was further confirmed to be a new chitin synthesis inhibitor. Compound 5 exhibited the strongest activity against the growth of both Staphylococcus aureus and MRSA with MIC value of 0.97 MUM. In the light of a co-occurrence of 3-acyl tetramic acids and biogenetically related pyridine alkaloids, the biosynthetic pathway for 1-12 was postulated. PMID- 29019247 TI - Export of Plastic Debris by Rivers into the Sea. AB - A substantial fraction of marine plastic debris originates from land-based sources and rivers potentially act as a major transport pathway for all sizes of plastic debris. We analyzed a global compilation of data on plastic debris in the water column across a wide range of river sizes. Plastic debris loads, both microplastic (particles <5 mm) and macroplastic (particles >5 mm) are positively related to the mismanaged plastic waste (MMPW) generated in the river catchments. This relationship is nonlinear where large rivers with population-rich catchments delivering a disproportionately higher fraction of MMPW into the sea. The 10 top-ranked rivers transport 88-95% of the global load into the sea. Using MMPW as a predictor we calculate the global plastic debris inputs form rivers into the sea to range between 0.41 and 4 * 106 t/y. Due to the limited amount of data high uncertainties were expected and ultimately confirmed. The empirical analysis to quantify plastic loads in rivers can be extended easily by additional potential predictors other than MMPW, for example, hydrological conditions. PMID- 29019248 TI - Amorphous Phosphorus-Incorporated Cobalt Molybdenum Sulfide on Carbon Cloth: An Efficient and Stable Electrocatalyst for Enhanced Overall Water Splitting over Entire pH Values. AB - The development of economical, proficient, and highly stable catalysts to substitute the expensive noble metal electrodes for electrocatalytic water splitting applications is exceedingly desirable. In this context, the most fascinating and challenging approach is the rational design of a nanocomposite encompassing multiple components with unique functionalities. Herein, we describe the fabrication of a strongly catalytic and superb durable phosphorus incorporated cobalt molybdenum sulfide electrocatalyst grown on carbon cloth (P CoMoS/CC). The hybrid material exhibited excellent activity for hydrogen and oxygen evolution reactions over a wide range of pH (1-14) with extremely high stability (~90% retention of the initial current density) after 24 h of electrolysis. Importantly, when P-CoMoS/CC was used as both cathode and anode for overall water splitting, a very low cell voltage of 1.54 V is required to attain the 10 mA cm-2 current density, and the hybrid material exhibited a long-term stability (89.8% activity retention after 100 h). The outstanding overall water splitting performance compared to an electrolyzer consisting of the noble-metal based catalysts Pt/C and RuO2 makes P-CoMoS one of the most efficient earth abundant water-splitting catalysts. Phosphorus incorporation was proved to be a vital aspect for the improved charge-transfer properties and catalytic durability of the P-CoMoS/CC catalyst. PMID- 29019249 TI - Electrochemical ATR-SEIRAS Using Low-Cost, Micromachined Si Wafers. AB - Thin, micromachined Si wafers, designed as internal reflection elements (IREs) for attenuated total reflectance infrared spectroscopy, are adapted to serve as substrates for electrochemical ATR surface enhanced infrared absorption spectroscopy (ATR-SEIRAS). The 500 MUm thick wafer IREs with groove angles of 35 degrees are significantly more transparent at long mid-IR wavelengths as compared to conventional large Si hemisphere IREs. The appeal of greater transparency is mitigated by smaller optical throughput at larger grazing angles and steeper angles of incidence at the reflecting plane that reduce the enhancement factor. Through use of the potential dependent adsorption of 4 methoxypyridine (MOP) as a test system, the microgroove IRE is shown to provide relatively strong electrochemical ATR-SEIRAS responses when the angle of incident radiation is between 50 and 55 degrees , corresponding to refracted angles through the crystal of ~40 degrees . The higher than expected enhancement is attributed to attenuation of the reflection loss of p-polarized light and multiple reflections within the wafer-based IRE. The micromachined IREs are shown to outperform a 25 mm radius hemisphere in terms of S/N at wavenumbers less than ca. 1400 cm-1 despite the weaker signal enhancement derived from the steeper angle incident on the IRE/sample interface. The high optical transparency of the new IREs allows the spectral observation of displaced water libration bands at ca. 730 cm-1 upon solvent replacement by adsorbed MOP. The results are highly encouraging for the further development of low-cost, Si wafer-based IREs for electrochemical ATR-SEIRAS applications. PMID- 29019250 TI - A bull horn fragment found on colonoscopy. AB - An 81-year-old man with mild iron deficiency anemia (Hb 12 g/dl) and a positive fecal occult blood test was referred for a colonoscopy. The patient was asymptomatic and not undergoing any treatment. A foreign body that crossed the colonic lumen and prevented the colonoscope progression was identified at 40 cm from the anal verge via colonoscopy. The object seemed to be hard and fixed when manipulated with biopsy forceps. PMID- 29019251 TI - Complete tubular colonic duplication in an adult: a rare incidental finding and the risk of colonoscopic perforation. AB - Gastrointestinal duplications are unusual congenital malformations, nearly always diagnosed in childhood. Roughly 80% are cysts-like lesions and only a small percentage (4-18%) involves the colonic wall. Almost all are asymptomatic and therefore diagnosed as an incidental finding on imaging tests or when become complicated and present with perforation or bleeding. The need for an elective surgical treatment is controversial and should be indicated on an individual basis. This report is a case of an adult with a complete tubular colonic duplication found incidentally by colonoscopy that required surgical treatment due to perforation. PMID- 29019252 TI - Hypersplenism secondary to splenoportal axis compression by a giant hepatic cyst. AB - Simple hepatic cysts (SHCs) are formations that contain serous fluid surrounded by normal hepatic parenchyma with no communication with intrahepatic bile ducts. Symptoms develop as a result of their size or complications such as bleeding, rupture, intracystic infection or compression of adjacent structures. PMID- 29019253 TI - Immune mediated colitis caused by lung cancer treatment with atezolizumab. AB - Atezolizumab is an IgG1 isotype monoclonal antibody against the protein programmed cell death-ligand 1 (PD- L1). PD-L1 may be highly expressed in some tumors and is believed to inhibit immune cells that recognize and attack tumor cells. Inhibition of PD-L1 can remove its inhibitory effect and provoke an anti tumor response. In October 2016, the Food and Drugs Administration (FDA) approved atezolizumab for the treatment of patients with metastatic non-small cell lung cancer after disease progression during or following platinum based chemotherapy. We present the case of a 43-year-old male with stage IV lung adenocarcinoma in progression, despite standard chemotherapy. PMID- 29019256 TI - Can Hospitals Contribute to the Public's Health? PMID- 29019255 TI - Expression profiles and associations of muscle regulatory factor (MRF) genes with growth traits in Tibetan chickens. AB - 1. Muscle regulatory factors (MRFs), including Myf5, Myf6 (MRF4/herculin), MyoD and MyoG (myogenin), play pivotal roles in muscle growth and development. Therefore, they are considered as candidate genes for meat production traits in livestock and poultry. 2. The objective of this study was to investigate the expression profiles of these genes in skeletal muscles (breast muscle and thigh muscle) at 5 developmental stages (0, 81, 119, 154 and 210 d old) of Tibetan chickens. Relationships between expressions of these genes and growth and carcass traits in these chickens were also estimated. 3. The expression profiles showed that in the breast muscle of both genders the mRNA levels of MRF genes were highest on the day of hatching, then declined significantly from d 0 to d 81, and fluctuated in a certain range from d 81 to d 210. However, the expression of Myf5, Myf6 and MyoG reached peaks in the thigh muscle in 118-d-old females and for MyoD in 154-d-old females, whereas the mRNA amounts of MRF genes in the male thigh muscle were in a narrow range from d 0 to d 210. 4. Correlation analysis suggested that gender had an influence on the relationships of MRF gene expression with growth traits. The RNA levels of MyoD, Myf5 genes in male breast muscle were positively related with several growth traits of Tibetan chickens (P < 0.05). No correlation was found between expressions of MRF genes and carcass traits of the chickens. 5. These results will provide a base for functional studies of MRF genes on growth and development of Tibetan chickens, as well as selective breeding and resource exploration. PMID- 29019254 TI - Psychometric evaluation of HIV risk behavior assessments using Audio Computer Assisted Self-Interviewing (ACASI) among orphans and vulnerable children in Zambia. AB - Social desirability bias and underreporting of HIV risk behaviors are significant challenges to the accurate evaluation of HIV prevention programs for orphans and vulnerable children (OVC) in sub-Saharan Africa. Valid and reliable HIV risk behavior instruments are critical to address these challenges. We assessed the psychometric properties of two risk behavior measures, the World Aids Foundation Survey (WAF) and the Peer HIV Risk Behavior Screener (PHRBS), administered to 210 OVC in Zambia using Audio Computer Assisted Self-Interviewing. All WAF subscales exhibited good internal reliability (alpha > .80); only the Sexual Behavior Practices subscale strongly distinguished (P < .01) adolescents who engaged in HIV risk behaviors ("cases") from those who did not ("non-cases"). An 8-item version of the PHRBS, refined using exploratory factor analysis, demonstrated good internal reliability (alpha = 87), differentiated "cases" from "non-cases" (P < .01), and correlated strongly with the Sexual Behavior Practices subcale (r = .34, P < .01). Results suggest that report of peers' sexual behaviors can serve as a proxy for OVCs' own behavior in contexts where social desirability bias affects reporting. PMID- 29019259 TI - Encourage students and trainees to get started in medical education. PMID- 29019257 TI - Catastrophic Health Expenditure Among Colorectal Cancer Patients and Families: A Case of Malaysia. AB - This study aimed to estimate the cost of colorectal cancer (CRC) management and to explore the prevalence and determinants of catastrophic health expenditure (CHE) among CRC patients and their families arising from the costs of CRC management. Data were collected prospectively from 138 CRC patients. Patients were interviewed by using a structured questionnaire at the time of the diagnosis, then at 6 months and 12 months following diagnosis. Simple descriptive methods and multivariate binary logistic regression were used in the analysis. The mean cost of managing CRC was RM8306.9 (US$2595.9), and 47.8% of patients' families experienced CHE. The main determinants of CHE were the economic status of the family and the likelihood of the patient undergoing surgery. The results of this study strongly suggest that stakeholders and policy makers should provide individuals with financial protection against the consequences of cancer, a costly illness that often requires prolonged treatment. PMID- 29019260 TI - Teaching exchange. PMID- 29019261 TI - Innovations and developments. PMID- 29019262 TI - The mentoring needs of trainees in family practice. PMID- 29019265 TI - Sinking skin flap syndrome following decompressive craniectomy. PMID- 29019266 TI - Liposome-loaded thermo-sensitive hydrogel for stabilization of SN-38 via intratumoral injection: optimization, characterization, and antitumor activity. AB - Main challenges of the clinical use of 7-ethyl-10-hydroxycamptothecin (SN-38) are its facile transition between the active lactone form (SN-38 A) and the inactive carboxylate form (SN-38I) under physiological conditions and its low solubility. The purpose of this study was to develop a thermo-sensitive hydrogel system with acidic SN-38 liposomes (SN-38-Lip-Gel) for local chemotherapy to solve these problems and to evaluate its antitumor activity and tissue distribution in tumor bearing mice. A study of structural conversion between SN-38I and SN-38 A under various pH conditions indicated that acidic solution could inhibit the conversion. Namely, a preparation with low pH was essential to stabilize lactone form of SN-38. SN-38-Lip-Gel had an appropriate gelation time (GT) at 25/37 degrees C. The particle size of SN-38-Lip-Gel was similar to that of SN-38-Lip. SN-38-Lip-Gel showed a slower release than SN-38-Lip in vitro. SN-38-Lip-Gel suggested pH-dependent stability, the percentage of SN-38 A remaining decreased along with the increasing pH. In vivo studies SN-38-Lip-Gel showed better antitumor efficacy and lower systemic toxicity compared with other groups at the same drug dose. In conclusion, SN-38-Lip-Gel could improve the effective use of SN-38 by stabilizing the lactone form, extending the drug release, providing a high local drug concentration, and reducing systemic toxicity. PMID- 29019268 TI - Editorial. PMID- 29019270 TI - Electronic memory aids for people with dementia experiencing prospective memory loss: A review of empirical studies. AB - This paper details a review of the literature on the use of electronic aids for prospective memory for people with dementia. Key findings of the review are that: electronic memory aids show potential for supporting people's prospective memory but the devices and software applications need further development in order to function reliably; sample sizes of studies are often very small, limiting the generalisability of their findings; few studies of devices are conducted in users' home environments; and most of the studies focus on the effectiveness of the electronic memory aid, rather than outcomes for users, such as improved daily functioning, quality of life, or social connectedness. The review concludes that future studies with robust devices are required that explicitly focus on the varying needs and capacities of people with dementia, in order to generate additional evidence for the effectiveness of electronic memory aids for this cohort. PMID- 29019267 TI - GE11 peptide conjugated selenium nanoparticles for EGFR targeted oridonin delivery to achieve enhanced anticancer efficacy by inhibiting EGFR-mediated PI3K/AKT and Ras/Raf/MEK/ERK pathways. AB - Selenium nanoparticles (Se NPs) have attracted increasing interest in recent decades because of their anticancer, immunoregulation, and drug carrier functions. In this study, GE11 peptide-conjugated Se NPs (GE11-Se NPs), a nanosystem targeting EGFR over-expressed cancer cells, were synthesized for oridonin delivery to achieve enhanced anticancer efficacy. Oridonin loaded and GE11 peptide conjugated Se NPs (GE11-Ori-Se NPs) were found to show enhanced cellular uptake in cancer cells, which resulted in enhanced cancer inhibition against cancer cells and reduced toxicity against normal cells. After accumulation into the lysosomes of cancer cells and increase of oridonin release under acid condition, GE11-Ori-Se NPs were further transported into cytoplasm after the damage of lysosomal membrane integrity. GE11-Ori-Se NPs were found to induce cancer cell apoptosis by inducting reactive oxygen species (ROS) production, activating mitochondria-dependent pathway, inhibiting EGFR-mediated PI3K/AKT and inhibiting Ras/Raf/MEK/ERK pathways. GE11-Se NPs were also found to show active targeting effects against the tumor tissue in esophageal cancer bearing mice. And in nude mice xenograft model, GE11-Ori-Se NPs significantly inhibited the tumor growth via inhibition of tumor angiogenesis by reducing the angiogenesis-marker CD31 and activation of the immune system by enhancing IL-2 and TNF-alpha production. The selenium contents in mice were found to accumulate into liver, tumor, and kidney, but showed no significant toxicity against liver and kidney. This cancer-targeted design of Se NPs provides a new strategy for synergistic treating of cancer with higher efficacy and reduced side effects, introducing GE11-Ori-Se NPs as a candidate for further evaluation as a chemotherapeutic agent for EGFR over-expressed esophageal cancers. PMID- 29019269 TI - The burden of severe hypoglycemia in type 1 diabetes. AB - AIMS: Approximately 1.25 million people in the US have type 1 diabetes mellitus (T1DM), a chronic metabolic disease that develops from the body's inability to produce insulin, and requires life-long insulin therapy. Poor insulin adherence may cause severe hypoglycemia (SHO), leading to hospitalization and long-term complications; these, in turn, drive up costs of SHO and T1DM overall. This study's objective was to estimate the prevalence and costs of SHO-related hospitalizations and their additional longer-term impacts on patients with T1DM using basal-bolus insulin. METHODS: Using Truven MarketScan claims, we identified adult T1DM patients using basal-bolus insulin regimens who were hospitalized for SHO (inpatient SHO patients) during 2010-2015. Two comparison groups were defined: those with outpatient SHO-related encounters only, including emergency department (ED) visits without hospitalization (outpatient SHO patients), and those with no SHO- or acute hyperglycemia-related events (comparison patients). Lengths of stay and SHO-related hospitalization costs were estimated and propensity score and inverse probability weighting methods were used to adjust for baseline differences across the groups to evaluate longer-term impacts. RESULTS: We identified 8,734 patients, of which 4.2% experienced at least one SHO related hospitalization. Among those who experienced SHO (i.e. of those in the inpatient and outpatient SHO groups), 31% experienced at least one SHO-related hospitalization, while 9% were treated in the ED without subsequent hospitalization. Approximately 79% of patients were admitted directly to the hospital; the remainder were first assessed or treated in the ED. The inpatient SHO patients stayed in the hospital, including time in the ED, for 1.7 days and incurred $3551 in costs. About one-third of patients were hospitalized again for SHO. Inpatient SHO patients incurred significantly higher monthly costs after their initial SHO-related hospitalization than patients in the two other groups ($2084 vs $1313 and $1372), corresponding to 59% or 52% higher monthly costs for inpatient SHO patients. LIMITATIONS: These analyses excluded patients who did not seek ED or hospital care when faced with SHO; events may have been miscoded; and we were not able to account for clinical characteristics associated with SHO, such as insulin dose and duration of diabetes, or unmeasured confounders. CONCLUSIONS: The burden associated with SHO is not negligible. About 4% of T1DM patients using basal-bolus insulin regimens are hospitalized at least once due to SHO. Not only did those patients incur the costs of their SHO hospitalization, but they also incur red at least $712 (52%) more in costs per month after their hospitalization than outpatient SHO or comparison patients. Reducing SHO events can help decrease the burden associated with SHO among patients with T1DM. PMID- 29019271 TI - Development of a Tandem Repeat-Based Polymerase Chain Displacement Reaction Method for Highly Sensitive Detection of 'Candidatus Liberibacter asiaticus'. AB - Huanglongbing (HLB) is one of the most destructive diseases in citrus production worldwide. Early detection of HLB pathogens can facilitate timely removal of infected citrus trees in the field. However, low titer and uneven distribution of HLB pathogens in host plants make reliable detection challenging. Therefore, the development of effective detection methods with high sensitivity is imperative. This study reports the development of a novel method, tandem repeat-based polymerase chain displacement reaction (TR-PCDR), for the detection of 'Candidatus Liberibacter asiaticus', a widely distributed HLB-associated bacterium. A uniquely designed primer set (TR2-PCDR-F/TR2-PCDR-1R) and a thermostable Taq DNA polymerase mutant with strand displacement activity were used for TR-PCDR amplification. Performed in a regular thermal cycler, TR-PCDR could produce more than two amplicons after each amplification cycle. Sensitivity of the developed TR-PCDR was 10 copies of target DNA fragment. The sensitive level was proven to be 100* higher than conventional PCR and similar to real-time PCR. Data from the detection of 'Ca. L. asiaticus' with filed samples using the above three methods also showed similar results. No false-positive TR-PCDR amplification was observed from healthy citrus samples and water controls. These results thereby illustrated that the developed TR-PCDR method can be applied to the reliable, highly sensitive, and cost-effective detection of 'Ca. L. asiaticus'. PMID- 29019272 TI - Amitriptyline and Sexual Function: A Systematic Review Updated for Sexual Health Practice. AB - Amitriptyline is an old drug but is still prevalently used as the first-line treatment for a variety of common diseases. Surprisingly, knowledge of sexual risks with amitriptyline comes from only one clinical trial and several case reports from three decades ago. In the current study, a systematic review of the literature following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) related to amitriptyline and sexual dysfunction (SD) was performed. The frequency, gender-difference, types, disease-specificity and time course of SD, and the relationship between SD and nonsexual adversity were studied. A total of 14 publications, including 8 qualified randomized clinical trials, were eligible. The frequency of SD in overall, male and female patients was 5.7, 11.9 and 1.7%, respectively. SD was six-fold higher in men than women. The frequency of SD was 6.9% in depressive patients compared with 0.8% in non depressive patients ( p = .008), and gradually decreased at 8 weeks after treatment ( p = .02). Amitriptyline impacted arousal and libido more than orgasm and ejaculation in male patients but mainly libido in female patients. SD was significantly correlated with insomnia linearly whereas somnolence and nausea dually. Therefore, amitriptyline-associated SD mainly occurs in depressive and male patients, disturbs each phase of the sexual response cycle in men but mainly libido in women, gradually decreases under long-term treatment, and can be predicted by the co-existence of insomnia, somnolence or nausea during treatment. Clinicians should caution and tailor the gender and disease vulnerability of amitriptyline in their practice. PMID- 29019273 TI - Dentists' use of digital radiographic techniques: Part I - intraoral X-ray: a questionnaire study of Swedish dentists. AB - OBJECTIVE: The present study aims to gain knowledge about the dentist's use and choice of digital intraoral imaging methods. MATERIALS AND METHODS: A questionnaire sent to 2481 dentists within the Swedish Dental Society contained questions about the type of X-ray technique used, problems experienced with digital radiography, and reasons for choosing digital technology, and about indications, clinic size and type of service. Response rate was 53%. RESULTS: Ninety-eight percent of the dentists had made the transition to digital radiography; only 2% used film technique, and solid-state detector (SSD) was the most used digital technique. More years in service decreases the likelihood of applying individual indications for performing a full mouth examination. More retakes were done with SSDs compared to storage phosphor plates. Reasons for choosing digital techniques were that work was easier and communication with the patients improved. However, dentists also experienced problems with digital techniques, such as exposure and projection errors and inadequate image quality. The Swedish Radiation Safety Authority states that all radiological examinations should be justified, something not always followed. CONCLUSIONS: This study showed that 98% of the respondents, Swedish dentists within the Swedish Dental Society, used digital techniques, and the most used was the solid-state technique. PMID- 29019275 TI - Identification of DNA methylation and transcriptional regulatory regions in the promoter of duck retinoic acid inducible gene I (RIG-I). AB - 1. The aim of this study was to identify the active control area of the duck retinoic acid-inducible gene I (duRIG-I) core promoter, to predict the binding sites of transcription factors and to provide a theoretical basis for the study of duRIG-I function and mechanism of regulation. 2. The promoter region of duRIG I was obtained from Ensembl; the CpG island in the duRIG-I promoter was predicted online; and the methylation status of the duRIG-I promoter was detected by the bisulphite sequencing PCR method. 3. There was an obvious CpG island in the duRIG I promoter, with a total of 44 CG dinucleotides. However, the level of methylation was hypomethylation (0.2%). 4. The core transcriptional regulatory region was identified, localised between -301 and ~+14 bp, where multiple transcription factor binding sites including IRF1, RXRbeta, AP-2alphaA, RAP1, NF 1 and SP1 motifs were identified that significantly enhanced RIG-I promoter activity. PMID- 29019274 TI - Effects of whole-body vibration on balance and mobility in institutionalized older adults: a randomized controlled trial. AB - OBJECTIVE: To investigate whether a comprehensive exercise program was effective in improving physical function among institutionalized older adults and whether adding whole-body vibration to the program conferred additional therapeutic benefits. DESIGN: A single-blinded randomized controlled trial was conducted. SETTING: This study was carried out in residential care units. PARTICIPANTS: In total, 73 older adults (40 women, mean age: 82.3 +/- 7.3 years) were enrolled into this study. INTERVENTIONS: Participants were randomly allocated to one of the three groups: strength and balance program combined with whole-body vibration, strength and balance program without whole-body vibration, and social and recreational activities consisting of upper limb exercises only. All participants completed three training sessions per week for eight weeks. OUTCOME MEASURES: Assessment of mobility, balance, lower limb strength, walking endurance, and self-perceived balance confidence were conducted at baseline and immediately after the eight-week intervention. Incidences of falls requiring medical attention were recorded for one year after the end of the training period. RESULTS: A significant time * group interaction was found for lower limb strength (five-times-sit-to-stand test; P = 0.048), with the exercise-only group showing improvement (pretest: 35.8 +/- 16.1 seconds; posttest: 29.0 +/- 9.8 seconds), compared with a decline in strength among controls (pretest: 27.1 +/- 10.4 seconds; posttest: 28.7 +/- 12.3 seconds; P = 0.030). The exercise with whole-body vibration group had a significantly better outcome in balance confidence (pretest: 39.2 +/- 29.0; posttest: 48.4 +/- 30.6) than the exercise only group (pretest: 35.9 +/- 24.8; posttest: 38.2 +/- 26.5; P = 0.033). CONCLUSION: The exercise program was effective in improving lower limb strength among institutionalized older adults but adding whole-body vibration did not enhance its effect. Whole-body vibration may improve balance confidence without enhancing actual balance performance. PMID- 29019276 TI - Benzo(a)pyrene induces lung toxicity and inflammation in mice: prevention by carvacrol. AB - Benzo(a)pyrene (B(a)P) is an environmental pollutant which causes various lung toxicities. The present study was designed to evaluate the protective effects of carvacrol, a monoterpenic phenol against B(a)P-induced lung toxicity. In this study, Swiss albino mice were pretreated with carvacrol (25 mg/kg and 50 mg/kg) orally for 7 consecutive days before administering oral B(a)P (125 mg/kg). Preventive efficacy of carvacrol was assessed in terms of membrane oxidation, antioxidant enzyme activities, histopathological changes, and inflammatory (iNOS, NF-kappaB, and COX-2) markers. Carvacrol pretreatment in the two doses restored B(a)P-induced lipid peroxidation and increased the activities of antioxidant enzymes. Protein expressions of iNOS, NF-kappaB, and COX-2 in the lung tissue were found to be upregulated by B(a)P. Carvacrol treatment, however, downregulated their expressions by decreasing the marker of positive stained cells and restored the histopathological architecture of lung tissue. Our results suggest that carvacrol can be used as a protective agent against B(a)P-induced lung toxicity and inflammation. PMID- 29019277 TI - 3D CBCT morphometric assessment of mental foramen in Arabic population and global comparison: imperative for invasive and non-invasive procedures in mandible. AB - BACKGROUND: Recent advancements in clinical dentistry have increased the possibilities of surgical procedures in the mental region. A detailed knowledge of mental foramen (MF) morphometry is significant to preserve integrity of the mental nerve trunk in surgical interventions such as orthognathic surgery, implant placement and anaesthetic block. OBJECTIVE: The aim of this study was to determine the most accurate position of the mental foramen by using new assessment approach in a sample of dental patients presenting to the specialist dental clinic, College of Dentistry, Al Jouf University, Saudi Arabia. STUDY DESIGN: A retrospective study was performed using cone beam computed tomography (CBCT) of 600 patients (40.1 +/- 11.78 years old). Following inclusion and exclusion criteria, 395 CBCT were finally obtained and analyzed for the most accurate position of the mental foramen (MF) by OnDemand 3D software (Seoul, Korea). Prevalence of shape of MF and accessory MF were also assessed. Pearson chi-square test was employed to test significant differences between genders and races. RESULTS: The most common horizontal and vertical position of the mental foramen was in line with the long axis of 2nd premolar (41.3%) and below the root apex level (93.2%), respectively. The most common shape of MF was round type (72.66%). The prevalence of accessory 2MF and 3MF was 2.28% and 0.25%, respectively. CONCLUSION: New information about MF presented in this article can help anatomists, prosthodontists, orthodontists, surgeons, forensic odontologists and paleoanthropologists to predict the position of the MF and perform safer surgeries. PMID- 29019278 TI - Recent developments with rhodanine as a scaffold for drug discovery. AB - INTRODUCTION: Rhodanines, as one of the 4-thiazolidinones subtypes, are recognized as privileged heterocycles in medicinal chemistry. The main achievements include the development of drug-like molecules with numerous biological activities as well as approved drugs. Among rhodanines, 5-ene rhodanines are of special interest, and are often claimed as pan assay interference compounds due to Michael acceptor functionality. Areas covered: Herein, the synthetic protocols for rhodanines and their transformation are reviewed. Biological activity is briefly discussed as well as biotargets, mode of actions and optimization directions. Furthermore, the utilization of 5-ene rhodanines in Michael additions are discussed while both pro and contra arguments have been outlined within medicinal chemistry application. Expert opinion: Rhodanines remain privileged heterocycles in drug discovery. They are accessible building blocks for optimization and transformation into related heterocycles, simplified analogues and fused heterocycles with a thiazolidine framework. Michael acceptor functionality, as well as the thesis about low selectivity towards biotargets of rhodanines, must be confirmed experimentally and it cannot be based on just the presence of conjugated alpha,beta-unsaturated carbonyl. Moreover, the positive aspects of Michael acceptors must be considered as well as their multitarget properties. New criteria for target affinity must be found. In conclusion, rhodanines are generally not problematic per se. PMID- 29019279 TI - Leucine and resistance training improve hyperglycemia, white adipose tissue loss, and inflammatory parameters in an experimental model of type 1 diabetes. AB - BACKGROUND: Loss of white adipose tissue (WAT), associated with type 1 diabetes (DM1), contributes to increased chronic systemic inflammation. AIM: The aim of this study was to investigate the effects of leucine supplementation and resistance training (RT) in attenuating WAT loss and improving inflammatory parameters and glucose metabolism in DM1 rats. METHODS: Thirty-two male Wistar rats were distributed into four groups: DA (sedentary and supplemented with non essential amino acids (NEAA)), DL (sedentary and supplemented with leucine), DTA (submitted to RT and supplemented with NEAA) and DTL (submitted to RT and supplemented with leucine). DM1 was induced by streptozotocin (STZ). An 8-week period of RT consisted of climbing a ladder with a progressively increased load, and supplementation was offered in the feed. RESULTS: Glycemia, polyphagia and polydipsia were lower in DL, DTA and DTL groups compared with the DA group by approximately 20% ( p<.0001), 28% ( p=.004) and 64% ( p<.0001), respectively. Weight of total WAT and retroperitoneal adipose tissue (RPAT) were higher by approximately 21% ( p=.01) and 54% ( p=.0004), respectively, in DL, DTA and DTL groups compared with DA. However, gene expression of adiponectin and leptin in RPAT was only increased by RT (DTA and DTL) compared with DA and DL by approximately 93% ( p<.0001) and 78% ( p=.0002), respectively. Similarly, the levels of adiponectin in the serum, tissue IL-10 (RPAT) and serum IL-10 were only increased in DTA and DTL compared with DA and DL by approximately 31% ( p=.03), 45% ( p=.0009) and 35% ( p=.003), respectively. CONCLUSIONS: Both interventions, isolated or together, reduced hyperglycemia and excessive loss of WAT, but RT was the main factor responsible for attenuating inflammation. PMID- 29019280 TI - Social inequality and barriers to cardiac rehabilitation in the rehab-North register. AB - AIM: Barriers to participation in cardiac rehabilitation (CR) may occur at three levels of the referral process (lack of information, declining to participate, and referral to appropriate CR programme). The aim is to analyse the impact of socioeconomic status on barriers to CR and investigate whether such barriers influenced the choice of referral. METHODS: The Rehab-North Register, a cross sectional study, enrolled 5455 patients hospitalised at Aalborg University Hospital with myocardial infarction (MI) during 2011-2014. Patients hospitalised with ST-elevated MI and complicated non-ST-elevated MI were to be sent to specialized CR, whereas patients with uncomplicated non-ST-elevated MI and unstable angina pectoris were to be sent to community-based CR. Detailed selected socioeconomic information was gathered from statistical registries in Statistics Denmark. Data was assessed using logistic regression. RESULTS: Patients being retired, low educated, and/or with an annual gross income <27.000 Euro/yr were significantly less informed about cardiac rehabilitation programmes. Patients being older than 70 years, retired, low educated and/or with an annual gross income <27.000 Euro were significantly less willing to participate in CR. Further, this patient population were to a higher extent referred to community based CR. CONCLUSION: Patients with low socioeconomic status received less information about and were less willing to participate in cardiac rehabilitation. The same patient population was to a higher extent referred to community-based CR. Knowledge about barriers at different levels and the impact of social inequality may help in tailoring a better approach in the referral process to CR. PMID- 29019281 TI - The Chronic Care Model to Improve Management of Childhood Obesity. AB - One-third of children in the United States are overweight or obese. Comorbidities continue into adulthood if a healthy weight is not established. While expert guidelines for management of this condition are recognized, provider adherence to guidelines is lacking. The purpose of this quality improvement project was to evaluate the effectiveness of the chronic care model (CCM) on improving primary care provider identification, prevention, and management of childhood overweight and obesity. A pre- and postintervention chart audit was completed to evaluate documentation of 20 assessment measures included in expert guidelines. A chi square analysis was conducted to assess differences. Statistically significant improvements were found in documentation of parental obesity, family medical history, sleep assessment, endocrine assessment, and weight classification as a diagnosis. Use of the CCM had a positive impact on provider adherence to expert guidelines. Furthermore, not all aspects of the CCM must be used to see statistically significant improvements. PMID- 29019282 TI - Negotiating Gender Norms to Support Men in Psychological Distress. AB - Underpinning a general pattern of higher suicide rates in men is the assumption that men do not ask for help or utilize the health-care system during times of psychological distress. There has been a failure to grapple with the dynamic of when, how and from whom men might ask for help during times of psychological distress, and what key barriers or enabling factors are likely to influence potential help-givers' capacity or willingness to offer help to men in psychological distress. The aim of this study was to investigate how masculine norms impact men's help-seeking as well as care givers' behaviors and willingness to support men in need of psychological help or perceived to be at risk of suicide. Focus groups ( n = 13) were used with "high-risk suicide" groups of men and community gatekeepers. The principles of grounded theory were used for data analysis. Three themes emerged: "negotiating ways to ask for, offer and accept help without compromising masculinity"; "making and sustaining contact with men in psychological distress"; and "navigating roles responsibilities and boundaries to support men in psychological distress." Approaches to suicide prevention need to take account of how masculine norms shape men's willingness to ask for and accept help during times of psychological distress as well as care givers willingness to offer help. The findings address a gap in the literature by looking beyond men's help-seeking as a passive, one dimensional construct, to a more dynamic triad of help-seeking/giving/taking behaviors that are embedded in the sociocultural context of men's lives. PMID- 29019283 TI - Antitumor effectiveness and mechanism of action of Ru(II)/amino acid/diphosphine complexes in the peritoneal carcinomatosis progression. AB - Peritoneal carcinomatosis is considered as a potentially lethal clinical condition, and the therapeutic options are limited. The antitumor effectiveness of the [Ru(l-Met)(bipy)(dppb)]PF6(1) and the [Ru(l-Trp)(bipy)(dppb)]PF6(2) complexes were evaluated in the peritoneal carcinomatosis model, Ehrlich ascites carcinoma-bearing Swiss mice. This is the first study that evaluated the effect of Ru(II)/amino acid complexes for antitumor activity in vivo. Complexes 1 and 2 (2 and 6 mg kg-1) showed tumor growth inhibition ranging from moderate to high. The mean survival time of animal groups treated with complexes 1 and 2 was higher than in the negative and vehicle control groups. The induction of Ehrlich ascites carcinoma in mice led to alterations in hematological and biochemical parameters, and not the treatment with complexes 1 and 2. The treatment of Ehrlich ascites carcinoma-bearing mice with complexes 1 and 2 increased the number of Annexin V positive cells and cleaved caspase-3 levels and induced changes in the cell morphology and in the cell cycle phases by induction of sub-G1 and G0/G1 cell cycle arrest. In addition, these complexes reduce angiogenesis induced by Ehrlich ascites carcinoma cells in chick embryo chorioallantoic membrane model. The treatment with the LAT1 inhibitor decreased the sensitivity of the Ehrlich ascites carcinoma cells to complexes 1 and 2 in vitro-which suggests that the LAT1 could be related to the mechanism of action of amino acid/ruthenium(II) complexes, consequently decreasing the glucose uptake. Therefore, these complexes could be used to reduce tumor growth and increase mean survival time with less toxicity than cisplatin. Besides, these complexes induce apoptosis by combination of different mechanism of action. PMID- 29019284 TI - MiR-503 enhances the radiosensitivity of laryngeal carcinoma cells via the inhibition of WEE1. AB - Enhancing the sensitivity of laryngeal cells to radiation is crucial for improving the efficacy of laryngeal carcinoma. MicroRNAs are known to play a major role in regulating cellular radiosensitivity. This study was designed to explore the effect and the molecular basis of miR-503 in the radiosensitivity of laryngeal carcinoma cells. Quantitative real-time polymerase chain reaction analysis showed that miR-503 expression was decreased in human laryngeal carcinoma cell lines Hep-2 and TU212, and the downregulation of miR-503 was also observed after irradiation. Upregulation of miR-503 by pre-miR-503 transfection restrained proliferation, promoted progression of Hep-2 and TU212 cells through the cell cycle after irradiation, and sensitized cells to radiation. Dual Luciferase Reporter Assay verified a direct interaction between miR-503 and the WEE1 messenger RNA 3'-untranslated region. The overexpression of miR-503 significantly decreased WEE1 expression at the messenger RNA and protein levels, whereas the inhibition of miR-503 upregulated the expression of WEE1. WEE1 knockdown by WEE1 small interfering RNA apparently abrogated the inhibitory effect of anti-miR-503 on radiosensitivity. In conclusion, miR-503 could function as an enhancer of radiation responses in laryngeal carcinoma cells by inhibiting WEE1, which may be a potential novel radiosensitizing strategy for laryngeal carcinoma. PMID- 29019286 TI - The neglected vulva. PMID- 29019285 TI - PDGFRalpha promoter polymorphisms and expression patterns influence risk of development of imatinib-induced thrombocytopenia in chronic myeloid leukemia: A study from India. AB - Platelet-derived growth factor receptor has been implicated in many malignant and non-malignant diseases. Platelet-derived growth factor receptor-alpha is a tyrosine kinase and a side target for imatinib, a revolutionary drug for the treatment of chronic myeloid leukemia that has dramatically improved the survival of chronic myeloid leukemia patients. Given the importance of platelet-derived growth factor receptor in platelet development and its inhibition by imatinib, it was intriguing to analyze the role of platelet-derived growth factor receptor alpha in relation to imatinib treatment in the development of imatinib-induced thrombocytopenia in chronic myeloid leukemia patients. We hypothesized that two known functional polymorphisms, +68GA insertion/deletion and -909C/A, in the promoter region of the platelet-derived growth factor receptor-alpha gene may affect the susceptibility of chronic myeloid leukemia patients receiving imatinib treatment to the development of thrombocytopenia. A case-control study was conducted among a cohort of chronic myeloid leukemia patients admitted to the Lok Nayak Hospital, New Delhi, India. A set of 100 patients of chronic myeloid leukemia in chronic phase and 100 age- and sex-matched healthy controls were studied. After initiation of imatinib treatment, the hematological response of chronic myeloid leukemia patients was monitored regularly for 2 years, in which the development of thrombocytopenia was the primary end point. Platelet-derived growth factor receptor-alpha promoter polymorphisms +68GA ins/del and -909C/A were studied by allele-specific polymerase chain reaction. Platelet-derived growth factor receptor-alpha messenger RNA expression was evaluated by quantitative real-time polymerase chain reaction. The messenger RNA expression results were expressed as 2-Deltact +/- standard deviation. The distribution of +68GA ins/del promoter polymorphism genotypes differed significantly between the thrombocytopenic and non-thrombocytopenic chronic myeloid leukemia patient groups (p < 0.0001). Moreover, +68GA del/del and ins/del genotypes in imatinib-treated chronic myeloid leukemia patients were associated with an increased risk of developing thrombocytopenia, with odds ratios 6.5 (95% confidence interval = 2.02 0.89, p = 0.001) and 6.0 (95% confidence interval = 2.26-15.91, p = 0.0002), respectively. Similarly, -909C/A promoter polymorphism genotype distribution also differed significantly between thrombocytopenic and non-thrombocytopenic chronic myeloid leukemia patient groups (p = 0.02), and a significantly increased risk of imatinib-induced thrombocytopenia was associated with -909C/A polymorphism mutant homozygous (AA) genotypes the odds ratio being 7.7 (95% confidence interval 1.50 to 39.91, p = 0.009). However, no significant risk of imatinib-induced thrombocytopenia was found to be associated with heterozygous genotype (-909C/A) with odds ratio 1.9 (95% confidence interval = 0.86-4.56, p = 1.14). Platelet derived growth factor receptor-alpha messenger RNA expression was significantly higher in chronic myeloid leukemia patients compared to controls (p = 0.008). Moreover, patients with imatinib-induced thrombocytopenia had a significantly lower platelet-derived growth factor receptor-alpha messenger RNA expression, compared to patients without thrombocytopenia (p = 0.01). A differential expression of platelet-derived growth factor receptor-alpha messenger RNA was observed with respect to different +68 GA ins/del and -909C/A polymorphism genotypes. The +68GA deletion allele and -909A allele were significantly associated with lower expression of platelet-derived growth factor receptor-alpha messenger RNA. The platelet-derived growth factor receptor-alpha +68GA del/del, +68GA ins/del, and -909AA genotypes are associated with an increased risk of developing thrombocytopenia in imatinib-treated chronic myeloid leukemia patients. A significantly lower platelet-derived growth factor receptor-alpha messenger RNA expression accompanies the +68GA deletion allele in an allele dose dependent manner. Platelet-derived growth factor receptor-alpha -909AA genotype is also associated with lower expression of platelet-derived growth factor receptor-alpha. The downregulation of platelet-derived growth factor receptor alpha expression may play a causative role in imatinib-induced thrombocytopenia, a common side effect, in the subset of chronic myeloid leukemia patients with platelet-derived growth factor receptor-alpha +68 GA ins/del, +68 GA del/del, and -909C/A genotypes. PMID- 29019287 TI - Racial/Ethnic Differences in Parent-Child Smoking Communication. AB - A cross-sectional study of parents and children who presented to the ED at a Cincinnati hospital showed high parental smoking rates and lower rates of anti smoking communication in African American parents, unlike prior studies. PMID- 29019288 TI - Native People and the DSM IV-TR. AB - Native people, as everyone else, are impacted in diverse ways by various social stressors that can trigger dysfunctional behavior, such as substance abuse. Although, the DSM IV-TR acknowledges cultural differences and their effect upon dysfunction, it does not deal with pressures from the outside world that often impact diverse cultures in parallel ways. Here, three such diagnostic criteria (Bereavement, Identity Problem, and Acculturation Problem), that are presented in an abbreviated fashion within the DSM IV-TR, are given a more robust treatment in order to facilitate dysfunctional behavior among Native people, such as substance abuse. PMID- 29019289 TI - Race/Ethnic Differences in Alcohol Abuse Among Youth. AB - OBJECTIVE: Black and Hispanic youth are less likely to abuse alcohol than White youth. However, the reasons for these race/ ethnic differences in alcohol abuse are unclear. The present study explores whether the variations can be explained, in part, by racial/ethnic differences in attitudes toward risk. METHOD: The National Household Survey of Drug Abuse, 2001 (n = 32,798) is used to explore race/ethnic differences in risk-taking attitudes and whether these attitudes serve to mediate race/ethnic differences in heavy drinking and drinking and driving. RESULTS: Bivariate analyses reveal that Black and Hispanic youth have lower rates of alcohol abuse and a lower propensity for risk-taking than White youth. Logistic regressions reveal that the differences in risk-taking explain (but do not completely account for) observed differences in alcohol abuse. These findings are present for both males and females. Results more generally reveal that social and economic ad vantages are associated with risk-taking attitudes and thus indirectly contribute to alcohol abuse. CONCLUSIONS: Researchers have long been surprised that minority youth exhibit lower rates of alcohol abuse than White youth since socioeconomic disadvantage often contributes to substance abuse. However, the present study suggests that social and economic disadvantages might also suppress risk-taking propensities, which in turn may reduce the incidence of alcohol abuse. Additional research is needed to understand the mechanisms by which social and cultural resources affect attitudes toward risk. PMID- 29019290 TI - Exploring the Temporal Relationship Between Race and the Use of Ecstasy. AB - Previous research has suggested that the use of 3, 4 methylenedioxymethamphetamine (MDMA or "ecstasy") is primarily concentrated among white users. These studies, however, have all been conducted at single points in time. No research has examined the temporal relationship between race and the use of ecstasy. In the current study, we use data collected from respondents surveyed through the National Household Survey on Drug Abuse between 1990 and 2001. Chi square statistics are used to explore the temporal relationship between race and the use of ecstasy during this time frame. While lifetime prevalence estimates are low relative to other populations, a consistent, statistically significant relationship between race and ecstasy use is discerned throughout the 1990s. Policy implications are assessed in light of the findings. PMID- 29019291 TI - Illegal Drug Use in Orthodox Jewish Adolescents. AB - Orthodox Jewish adolescents are increasingly seeking stimulation with illegal drugs. Eleven Orthodox Jewish adolescents were surveyed with semi-structured interviews on the Orthodox Jewish cultural aspects of their illegal drug use. Adolescents had mixed beliefs about religious teachings affecting their illegal drug use. No consistent pattern existed for particular ethnic aspects of Orthodox Jewish religious practice as a risk factor for illegal drug use. Language used to describe illegal drug use in this population is described. Unlike illegal drug use in secular and non-Jewish adolescents, these adolescents reported very little family discord or poor relationships with their parents. PMID- 29019292 TI - Racial/Ethnic Differences in Dually Diagnosed Anglo and Ethnic Minority Women Receiving Chemical Dependency Treatment. AB - This article examines racial/ethnic differences in a sample of 51 dually diagnosed women who received chemical dependency treatment. Comparisons are made between Anglo and racial/ethnic minority women at admission to the inpatient treatment program and at follow-up where data are available. Findings from a repeated measures design showed significant decreases in several problem domains for the overall sample. Significant racial/ethnic differences were found only for the other drugs domain. Anglo women reported greater decreases than racial/ethnic minority women in the majority of the domains. Findings suggest continued investigations to inform culturally competent treatment for all dually diagnosed women. PMID- 29019293 TI - Evolution of the concept of oxygen transport in the critically ill, with a focus on children after cardiopulmonary bypass. AB - The concept of oxygen transport, defined as the relation between oxygen consumption (VO2) and delivery (DO2), is of fundamental importance in critically ill patients. The past 200 years have witnessed a stepwise progressive improvement in the understanding of pathophysiological disturbances in the balance of DO2 and VO2 in critically ill patients including those after cardiopulmonary bypass surgery. Intermittent spectacular technological achievements have accelerated the rate of progress. Therapeutic advances have been particularly impressive during the recent decades. Examination of the relation between DO2 and VO2 provides a useful framework around which the care of the critically ill may be developed. Until now, only a few groups have used this framework to examine children after cardiopulmonary bypass. The key topics that will be covered in this review article are the evolution of the concept from its early development to its present, increasingly sophisticated, role in the management of critically ill patients, with a focus on children after cardiopulmonary bypass surgery. PMID- 29019294 TI - Participation sociale et personnes ayant des atteintes cognitives et centre communautaire de loisir : une equation possible? AB - Validating support of social participation for people with cognitive impairment (CI) plays a predominant role in maintaining identity, autonomy, sense of belonging and social bonding. Yet what restricts this participation-intervention methods, cognitive impairment, or other individuals in the participant's environment? This study documents stakeholders', volunteers' and users' perceptions of people with CI in community recreation centres (CRC). Six focus groups (n = 44) in Montreal, Quebec City and Drummondville highlighted some issues concerning this subject. Although sympathetic to a society where people with multiple weaknesses coexist, participants are not convinced of the need to include those whose memory and judgment are failing. The integration of people with CI includes relational and organizational challenges and questions our relationship to cognitive aging and performance values in an inclusive environment. PMID- 29019296 TI - Addiction to death. PMID- 29019295 TI - EXPLORING VALUES OF HEALTH TECHNOLOGY ASSESSMENT AGENCIES USING REFLECTIVE MULTICRITERIA AND RARE DISEASE CASE. AB - OBJECTIVES: Tackling ethical dilemmas faced by reimbursement decision makers requires deeper understanding of values on which health technology assessment (HTA) agencies are founded and how trade-offs are made. This was explored in this study including the case of rare disease. METHODS: Representatives from eight HTA explored values on which institutions are founded using a narrative approach and reflective multicriteria (developed from EVIDEM, criteria derived from ethical imperatives of health care). Trade-offs between criteria and the impact of incorporating defined priorities (including for rare diseases) were explored through a quantitative values elicitation exercise. RESULTS: Participants reported a diversity of substantive and procedural values with a common emphasis on scientific excellence, stakeholder involvement, independence, and transparency. Examining the ethical imperatives behind EVIDEM criteria was found to be useful to further explore substantive values. Most criteria were deemed to reflect institutions' values, while 70 percent of the criteria were reported by at least half of participants to be considered formally by their institutions. The quantitative values elicitation highlighted the difficulty to balance imperatives of "alleviating or preventing patient suffering," "serving the whole population equitably," "upholding healthcare system sustainability," and "making decisions informed by evidence and context" but may help share the ethical reasoning behind decisions. Incorporating "Priorities" (including for rare diseases) helped reveal trade-offs from other criteria and their underlying ethical imperatives. CONCLUSIONS: Reflective multicriteria are useful to explore substantive values of HTAs, reflect how these values and their ethical underpinnings can be operationalized into criteria, and explore the ethical reasoning at the heart of the healthcare debate. PMID- 29019298 TI - A learned artisan debates the system of the world: Le Clerc versus Mallemant de Messange. AB - Sebastien Le Clerc (1637-1714) was the most renowned engraver of Louis XIV's France. For the history of scientific publishing, however, Le Clerc represents a telling paradox. Even though he followed a traditional route based on classic artisanal training, he also published extensively on scientific topics such as cosmology and mathematics. While contemporary scholarship usually stresses the importance of artisanal writing as a direct expression of artisanal experience and know-how, Le Clerc's publications, and specifically the work on cosmology in his Systeme du monde (1706-1708), go far beyond this. By reconstructing the debate between Le Clerc and the professor Mallemant de Messange on the authorship of this 'system of the world', this article argues that Le Clerc's involvement in publishing ventures shaped his identity both as an artisan and as a scientific author. Whereas the Scientific Revolution supposedly heralded a change from the world of 'more or less' to the 'world of precision', this article shows how an artisan could be more 'precise' than the learned scholar whose claims he disputed, and points to the importance of the literary field as a useful lens for observing the careers of early modern scientific practitioners. PMID- 29019297 TI - REDUCING POTENTIALLY INAPPROPRIATE PRESCRIBING FOR OLDER PEOPLE IN PRIMARY CARE: COST-EFFECTIVENESS OF THE OPTI-SCRIPT INTERVENTION. AB - OBJECTIVES: This study examines the cost-effectiveness of the OPTI-SCRIPT intervention on potentially inappropriate prescribing in primary care. METHODS: Economic evaluation, using incremental cost-effectiveness and cost utility analyses, conducted alongside a cluster randomized controlled trial of twenty-one general practices and 196 patients, to compare a multifaceted intervention with usual practice in primary care in Ireland. Potentially inappropriate prescriptions (PIPs) were determined by a pharmacist. Incremental costs, PIPs, and quality-adjusted life-years (QALYs) at 12-month follow-up were estimated using multilevel regression. Uncertainty was explored using cost-effectiveness acceptability curves. RESULTS: The intervention was associated with a nonsignificant mean cost increase of ?407 (95 percent CIs, -357-1170), a significant mean reduction in PIPs of 0.379 (95 percent CI, 0.092-0.666), and a nonsignificant mean increase in QALYs of 0.013 (95 percent CIs, -0.016-0.042). The incremental cost per PIP avoided was ?1,269 (95 percent CI, -1400-6302) and the incremental cost per QALY gained was ?30,535 (95 percent CI, -334,846 289,498). The probability of the intervention being cost-effective was 0.602 at a threshold value of ?45,000 per QALY gained and was at least 0.845 at threshold values of ?2,500 per PIP avoided and higher. CONCLUSIONS: While the OPTI-SCRIPT intervention was effective in reducing potentially inappropriate prescribing in primary care in Ireland, our findings highlight the uncertainty with respect to its cost-effectiveness. Further studies are required to explore the health and economic implications of interventions targeting potentially inappropriate prescribing. PMID- 29019300 TI - The politics of cognition: liberalism and the evolutionary origins of Victorian education. AB - In recent years the historical relationship between scientific experts and the state has received increasing scrutiny. Such experts played important roles in the creation and regulation of environmental organizations and functioned as agents dispatched by politicians or bureaucrats to assess health-related problems and concerns raised by the public or the judiciary. But when it came to making public policy, scientists played another role that has received less attention. In addition to acting as advisers and assessors, some scientists were democratically elected members of local and national legislatures. In this essay I draw attention to this phenomenon by examining how liberal politicians and intellectuals used Darwinian cognitive science to conceptualize the education of children in Victorian Britain. PMID- 29019299 TI - Additional mechanism for left ventricular dysfunction: chronic pulmonary regurgitation decreases left ventricular preload in patients with tetralogy of Fallot. AB - BACKGROUND: Right ventricular dysfunction in patients with tetralogy of Fallot and significant pulmonary regurgitation may lead to systolic dysfunction of the left ventricle due to altered ventricular interaction. We were interested in determining whether chronic pulmonary regurgitation affects the preload of the left ventricle. In addition, we wanted to study whether severe chronic pulmonary regurgitation would alter the preload of the left ventricle when compared with patients having preserved pulmonary valve annulus. METHODS: The study group comprised 38 patients with tetralogy of Fallot who underwent surgical repair between 1990 and 2003. Transannular patching was required in 21 patients to reconstruct the right ventricular outflow tract. Altogether, 48 age- and gender matched healthy volunteers were recruited. Cardiac MRI was performed on all study patients to assess the atrial and ventricular volumes and function. RESULTS: Severe pulmonary regurgitation (>30 ml/m2) was present in 13 patients, of whom 11 had a transannular patch, but only two had a preserved pulmonary valve annulus. The ventricular preload volumes from both atria were significantly reduced in patients with severe pulmonary regurgitation, and left ventricular stroke volumes (44.1+/-4.7 versus 58.9+/-10.7 ml/m2; p<0.0001) were smaller compared with that in patients with pulmonary regurgitation <30 ml/m2 or in controls. CONCLUSIONS: In patients with tetralogy of Fallot, severe pulmonary regurgitation has a significant effect on volume flow through the left atrium. Reduction in left ventricular preload volume may be an additional factor contributing to left ventricular dysfunction. PMID- 29019301 TI - Validation of the Gratitude Questionnaire in Filipino Secondary School Students. AB - Most studies have assessed the psychometric properties of the Gratitude Questionnaire - Six-Item Form (GQ-6) in the Western contexts while very few research has been generated to explore the applicability of this scale in non Western settings. To address this gap, the aim of the study was to examine the factorial validity and gender invariance of the Gratitude Questionnaire in the Philippines through a construct validation approach. There were 383 Filipino high school students who participated in the research. In terms of within-network construct validity, results of confirmatory factor analyses revealed that the five-item version of the questionnaire (GQ-5) had better fit compared to the original six-item version of the gratitude questionnaire. The scores from the GQ 5 also exhibited invariance across gender. Between-network construct validation showed that gratitude was associated with higher levels of academic achievement (beta = .46, p <.001), autonomous motivation (beta = .73, p <.001), and controlled motivation (beta = .28, p <.01). Conversely, gratitude was linked to lower degree of amotivation (beta = -.51, p <.001). Theoretical and practical implications are discussed. PMID- 29019302 TI - Education and Successful Aging Trajectories: A Longitudinal Population-Based Latent Variable Modelling Analysis. AB - As the population ages, interest is increasing in studying aging well. However, more refined means of examining predictors of biopsychosocial conceptualizations of successful aging (SA) are required. Existing evidence of the relationship between early-life education and later-life SA is unclear. The Successful Aging Index (SAI) was mapped onto the Cognitive Function and Aging Study (CFAS), a longitudinal population-based cohort (n = 1,141). SAI scores were examined using growth mixture modelling (GMM) to identify SA trajectories. Unadjusted and adjusted (age, sex, occupational status) ordinal logistic regressions were conducted to examine the association between trajectory membership and education level. GMM identified a three-class model, capturing high, moderate, and low functioning trajectories. Adjusted ordinal logistic regression models indicated that individuals in higher SAI classes were significantly more likely to have higher educational attainment than individuals in the lower SAI classes. These results provide evidence of a life course link between education and SA. PMID- 29019303 TI - Loneliness, Sociodemographic and Mental Health Variables in Spanish Adults over 65 Years Old. AB - Loneliness is a risk factor for morbidity as well as mortality. Older people are more vulnerable to feeling alone due to age-associated changes and losses they might experience. This study aimed to analyze sociodemographic, psychosocial, and mental health variables related to loneliness in the elderly. A random sample of 419 people over 65 years old from the Community of Madrid was used. The UCLA Loneliness Scale, the CIDI65+ Diagnostic Interview, and the WHOQOL-BREF Quality of Life Measure were administered. A regression p model was estimated to identify the variables that best predict loneliness associated with old age. Loneliness associated variables included living alone t(161.41) = 2.07; p < .040, marital status F(5, 404) = 4.52; p < .001, frequency of economic problems F(1, 408 ) = 4.86; p < .028, quality of life F(4, 405) = 7.36; p < .001, satisfaction with life F(4, 405) = 3.80; p < .005, satisfaction with social relationships F(4, 405) = 19.50; p < .001, presence of a mental disorder (t(98.70) = 2.92; p < .004), and having an anxiety disorder (t(51.11) = 2.19; p < .033). The results presented in this paper highlight some predictors of loneliness in older people that could be useful in intervention, to minimize harmful conditions that can lead to loneliness in people over 65. PMID- 29019304 TI - Evaluation de la culture de securite en Etablissement d'Hebergement pour Personnes Agees Dependantes (EHPAD): adaptation francaise du questionnaire Nursing Home Survey on Patient Safety Culture. AB - The objective was to translate into French the American questionnaire "Nursing Home Survey on Patient Safety Culture" and to test the feasibility of its use in a sample of nursing homes. The questionnaire was translated by a multidisciplinary group of six experts and tested on a sample of people working in nursing homes. The questionnaire was then administered in five nursing homes. A first version of the French NHSPSC is proposed in this article. Despite similarities between items and ceiling effect for one item, the choices made were conservative to allow international comparisons. The administration of the questionnaire in five nursing homes confirmed the feasibility of the approach, with a participation of more than 50 per cent. This work made a French version of the NHSPSC available and confirmed that it is a feasible method for evaluating safety culture in nursing homes. PMID- 29019305 TI - How can Academic Context Variables Contribute to the Personal Well-Being of Higher Education Students? AB - This study analyzed the influence of perceived time pressure, role clarity, working conditions and peer social support on the personal well-being (subjective, psychological and social well-being) of higher education students, in a sample of 128 Portuguese students from the University of Lisbon. A model was proposed which predicts a negative influence of time pressure and a positive influence of role clarity, working conditions and peer social support on students' personal well-being, throughout the academic year. Data was collected by means of a longitudinal design, at the beginning and end of the academic year, through self-report questionnaires. Structural equation models were used to analyze cross-sectional and cross-lagged relations among the variables. At cross sectional level, results revealed a good fit to data (CFI = .928; IFI = .931; RMSEA = .060) illustrating that the perception of academic context variables was related to well-being dimensions. At longitudinal level, however, cross-lagged models did not fit so well to the data (CFI = .863; IFI = .869; RMSEA = .058) with both perceptions of time pressure (beta = .167; p = .037) and role clarity (beta = -.288; p = .031) significantly predicting well-being, but not in the expected direction, encouraging the accomplishment of studies to further a broader understanding of higher education students' well-being and its predictors. Implications for higher education scholars and practitioners and suggestions for future research are discussed. PMID- 29019306 TI - Detection of a chikungunya outbreak in Central Italy, August to September 2017. AB - An autochthonous chikungunya outbreak is ongoing near Anzio, a coastal town in the province of Rome. The virus isolated from one patient and mosquitoes lacks the A226V mutation and belongs to an East Central South African strain. As of 20 September, 86 cases are laboratory-confirmed. The outbreak proximity to the capital, its late summer occurrence, and diagnostic delays, are favouring transmission. Vector control, enhanced surveillance and restricted blood donations are being implemented in affected areas. PMID- 29019308 TI - In the national epidemiological bulletins - a selection from recent issues. PMID- 29019307 TI - Control measures following a case of imported Lassa fever from Togo, North Rhine Westphalia, Germany, 2016. AB - In a patient transferred from Togo to Cologne, Germany, Lassa fever was diagnosed 12 days post mortem. Sixty-two contacts in Cologne were categorised according to the level of exposure, and gradual infection control measures were applied. No clinical signs of Lassa virus infection or Lassa specific antibodies were observed in the 62 contacts. Thirty-three individuals had direct contact to blood, other body fluids or tissue of the patients. Notably, with standard precautions, no transmission occurred between the index patient and healthcare workers. However, one secondary infection occurred in an undertaker exposed to the corpse in Rhineland-Palatinate, who was treated on the isolation unit at the University Hospital of Frankfurt. After German authorities raised an alert regarding the imported Lassa fever case, an American healthcare worker who had cared for the index patient in Togo, and who presented with diarrhoea, vomiting and fever, was placed in isolation and medevacked to the United States. The event and the transmission of Lassa virus infection outside of Africa underlines the need for early diagnosis and use of adequate personal protection equipment (PPE), when highly contagious infections cannot be excluded. It also demonstrates that larger outbreaks can be prevented by infection control measures, including standard PPE. PMID- 29019309 TI - Management of a Lassa fever outbreak, Rhineland-Palatinate, Germany, 2016. AB - Due to rapid diagnosis and isolation of imported cases, community outbreaks of viral haemorrhagic fevers (VHF) are considered unlikely in industrialised countries. In March 2016, the first documented locally acquired case of Lassa fever (LF) outside Africa occurred, demonstrating the disease's potential as a cross-border health threat. We describe the management surrounding this case of LF in Rhineland-Palatinate - the German federal state where secondary transmission occurred. Twelve days after having been exposed to the corpse of a LF case imported from Togo, a symptomatic undertaker tested positive for Lassa virus RNA. Potential contacts were traced, categorised based on exposure risk, and monitored. Overall, we identified 21 contact persons with legal residency in Rhineland-Palatinate: seven related to the index case, 13 to the secondary case, and one related to both. The secondary case received treatment and recovered. Five contacts were quarantined and one was temporarily banned from work. No further transmission occurred. Based on the experience gained during the outbreak and a review of national and international guidelines, we conclude that exposure risk attributable to corpses may currently be underestimated, and we present suggestions that may help to improve the anti-epidemic response to imported VHF cases in industrialised countries. PMID- 29019310 TI - Lessons learnt from imported cases and onward transmission of Lassa fever in Europe support broader management of viral haemorrhagic fevers. PMID- 29019312 TI - Widespread distribution of mcr-1-bearing bacteria in the ecosystem, 2015 to 2016. AB - The recently discovered colistin resistance-encoding element, mcr-1, adds to the list of mobile resistance genes whose products rapidly erode the antimicrobial efficacy of not only the commonly used antibiotics, but also the last line agents of carbapenems and colistin. The relative prevalence of mcr-1-bearing strains in various ecological niches including 1,371 food samples, 480 animal faecal samples, 150 human faecal samples and 34 water samples was surveyed using a novel in-house method. Bacteria bearing mcr-1 were commonly detected in water (71% of samples), animal faeces (51%), food products (36%), and exhibited stable carriage in 28% of human subjects surveyed. Such strains, which exhibited variable antibiotic susceptibility profiles, belonged to various Enterobacteriaceae species, with Escherichia coli being the most dominant in each specimen type. The mcr-1 gene was detectable in the chromosome as well as plasmids of various sizes. Among these, two conjugative plasmids of sizes ca 33 and ca 60 kb were found to be the key vectors that mediated mcr-1 transmission in organisms residing in various ecological niches. The high mcr-1 carriage rate in humans found in this study highlights the importance of continued vigilance, careful antibiotic stewardship, and the development of new antimicrobials. PMID- 29019313 TI - Preliminary report of an autochthonous chikungunya outbreak in France, July to September 2017. AB - In August 2017, an autochthonous chikungunya case was reported in south-east France. By mid-September, eight additional autochthonous cases were found in the index case's neighbourhood, where the chikungunya virus vector Aedes albopictus was observed. Genomic characterisation identified an East-Central South African (ECSA) lineage strain, probably from the Central African region and carrying an adaptive mutation facilitating transmission by Ae. albopictus. The event confirms we need early case detection and response to contain chikungunya in Europe. PMID- 29019314 TI - Authors' reply: Geographic resolution of surveillance data and influenza prevention in large countries. PMID- 29019316 TI - Letter to the editor: Sampling bias should be minimised when analysing influenza transmission zones involving very large countries. PMID- 29019315 TI - Infectious disease screening in asylum seekers: range, coverage and economic evaluation in Germany, 2015. AB - Screening asylum seekers for infectious diseases is widely performed, but economic evaluations of such are scarce. We performed a policy analysis and economic evaluation of such screening in Germany, and analysed the effect of screening policies on cost differences between federal states. Of the 16 states, screening was compulsory for tuberculosis (TB) in asylum seekers >= 16 years of age in all states as well as in children < 16 years of age and pregnant women in six states, hepatitis B and enteropathogens in three, syphilis in two and human immunodeficiency virus (HIV) in one state. Of 441,899 asylum seekers, 88.0% were screened for TB, 22.9% for enteropathogens, 16.9% for hepatitis B, 13.1% for syphilis and 11.3% for HIV. The total costs for compulsory screening in 2015 were 10.3 million euros (EUR). Costs per case were highest for infections with Shigella spp. (80,200 EUR), Salmonella spp. (8,000 EUR), TB in those >= 16 years of age (5,300 EUR) and syphilis (1,150 EUR). States with extended screening had per capita costs 2.84 times those of states that exclusively screened for TB in asylum seekers >= 16 years of age (p < 0.0001, 95% confidence interval (CI): 1.96 4.10). Screening practices in Germany entailed high costs; evidence-based approaches to infectious disease screening are needed. PMID- 29019318 TI - Addendum for Euro Surveill. 2017;22(8). PMID- 29019317 TI - PRECEPT: an evidence assessment framework for infectious disease epidemiology, prevention and control. AB - Decisions in public health should be based on the best available evidence, reviewed and appraised using a rigorous and transparent methodology. The Project on a Framework for Rating Evidence in Public Health (PRECEPT) defined a methodology for evaluating and grading evidence in infectious disease epidemiology, prevention and control that takes different domains and question types into consideration. The methodology rates evidence in four domains: disease burden, risk factors, diagnostics and intervention. The framework guiding it has four steps going from overarching questions to an evidence statement. In step 1, approaches for identifying relevant key areas and developing specific questions to guide systematic evidence searches are described. In step 2, methodological guidance for conducting systematic reviews is provided; 15 study quality appraisal tools are proposed and an algorithm is given for matching a given study design with a tool. In step 3, a standardised evidence-grading scheme using the Grading of Recommendations Assessment, Development and Evaluation Working Group (GRADE) methodology is provided, whereby findings are documented in evidence profiles. Step 4 consists of preparing a narrative evidence summary. Users of this framework should be able to evaluate and grade scientific evidence from the four domains in a transparent and reproducible way. PMID- 29019319 TI - The Asymptomatic Carotid Surgery Trial-2 (ACST-2): an ongoing randomised controlled trial comparing carotid endarterectomy with carotid artery stenting to prevent stroke. AB - BACKGROUND: A successful open surgical operation to remove atheromatous carotid artery narrowing that has not yet caused a stroke (asymptomatic carotid stenosis) carries some procedural risk but, if completed successfully, halves patients' future annual stroke risk for at least 10 years. A newer, less invasive alternative is carotid stenting, which also carries some procedural risk, especially if the carotid lesion has recently given rise to a stroke (symptomatic carotid stenosis). For both surgery and stenting, improvements in technique (and in medication) have reduced risk. Early studies showed that treating carotid narrowing by stenting, particularly for symptomatic lesions, caused more procedural minor strokes than surgery, but more recent trials in symptomatic and in asymptomatic patients found that both procedures might now be equally safe and effective. However, low patient numbers, short follow-up of the long-term effects on stroke rates and wide confidence intervals mean that worldwide uncertainty persists between carotid surgery and carotid stenting, and national and international guidelines remain unclear as to which is generally better. OBJECTIVES: The second Asymptomatic Carotid Surgery Trial (ACST-2) compares carotid endarterectomy (CEA) with carotid artery stenting (CAS) directly, randomising patients with asymptomatic carotid stenosis for whom a carotid procedure is considered definitely necessary; both procedures seem anatomically feasible, and there is substantial uncertainty as to which of the two would be better for such individuals. Although it will compare procedural risks, the trial's primary aim is to compare the long-term durability of protection against strokes occurring in the years post procedure due to any remaining or recurrent carotid disease. DESIGN: Randomised controlled trial comparing CEA with CAS. SETTING: Hospitals in the UK and worldwide, in which carotid procedures are common. PARTICIPANTS: Men and women with severely stenotic atherosclerotic carotid artery disease, with or without previous stroke but with no recent symptoms from the randomised artery. INTERVENTIONS: CEA and CAS. OUTCOMES: (1) Periprocedural risk defined as myocardial infarction, stroke or death within 30 days after the randomised procedure and (2) long-term rates of disabling or fatal stroke during follow-up of patients. MEASUREMENT OF COSTS AND OUTCOMES: Measurement of intervention costs and stroke costs (periprocedural and during follow-up) and of quality of life [EuroQol-5 Dimensions (EQ-5D(r))] for patients in the top six recruiting countries (UK, Italy, Belgium, Germany, Serbia and Sweden), who currently constitute 85% of those randomised. PROGRESS SO FAR: By the end of March 2016, ACST-2 had included 2125 patients, nearly two-thirds of the planned recruitment of 3600; 1061 were randomly allocated to CEA and 1064 to CAS. CONCLUSIONS: Further funding has been secured and recruitment continues, with completion anticipated by the end of 2019. ACST-2 will report initial results in 2021. TRIAL REGISTRATION: Current Controlled Trials ISRCTN21144362. FUNDING: This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 21, No. 57. See the NIHR Journals Library website for further project information. Funding was also received from BUPA Foundation [BUPAF/33(a)/05]. PMID- 29019320 TI - Distinct cellular and molecular mechanisms for beta3 adrenergic receptor-induced beige adipocyte formation. AB - Beige/brite adipocytes are induced within white adipose tissues (WAT) and, when activated, consume glucose and fatty acids to produce heat. Classically, two stimuli have been used to trigger a beiging response: cold temperatures and beta3 adrenergic receptor (Adrb3) agonists. These two beiging triggers have been used interchangeably but whether these two stimuli may induce beiging differently at cellular and molecular levels remains unclear. Here, we found that cold-induced beige adipocyte formation requires Adrb1, not Adrb3, activation. Adrb1 activation stimulates WAT resident perivascular (Acta2+) cells to form cold-induced beige adipocytes. In contrast, Adrb3 activation stimulates mature white adipocytes to convert into beige adipocytes. Necessity tests, using mature adipocyte-specific Prdm16 deletion strategies, demonstrated that adipocytes are required and are predominant source to generate Adrb3-induced, but not cold-induced, beige adipocytes. Collectively, we identify that cold temperatures and Adrb3 agonists activate distinct cellular populations that express different beta-adrenergic receptors to induce beige adipogenesis. PMID- 29019323 TI - Diet, Physical Activity, Marital Status and Risk of Cancer: A Case Control Study of Adults from Riyadh, Saudi Arabia. AB - OBJECTIVES: We aimed to compare the dietary habits, engagement in various sports, smoking habits, marital status and other demographic characteristics, between cancer patients and healthy adults (control) at our institute, Riyadh, Saudi Arabia. PATIENTS AND METHODS: A cross-sectional descriptive study was conducted on 500 participants (237 cancer patients and 263 healthy adults). A well structured questionnaire was given to these participants regarding the life style, dietary habits, and marital status through interviews. RESULTS: Mean age of whole cohort was 39.3 years (range: 14-85). Among the cancer patients, breast cancer was predominant (45.6%). Compared to controls, higher percentage of married (72.6% vs. 55.5%) and divorced (10.2% vs.4.2%) was noticed in cancer patients (P = 0.002). In cancer patients, majority were unemployed (housewives = 49.3%; retired = 16.0%) as compared to controls (housewives = 14.1%; retired = 2.0%) P = 0.0001. Use of computer laptops/tablets and internet surfing was significantly higher in controls as compared to cancer patients (80.3% vs. 42.2%) P = 0.0001. Similarly, cancer patients started smoking at early age and were relatively heavy smokers with P = 0.03 and P = 0.001 respectively. Cancer patients consumed < 3 cups of coffee/day as compared to control (42.4% vs. 21.5%) P = 0.02. More cancer patients got married at early age between 11-20 years (58.7% vs. 37.7%) P = 0.01. CONCLUSION: Unemployment, marital status, lack of nutritional knowledge through internet, heavy smoking, heavy coffee consumption and early age at marriage were associated with the risk of various cancers in both genders. PMID- 29019324 TI - Clinico-hematological Profile of 184 Patients with Non-Hodgkin's Lymphoma: An Experience from Southern Pakistan. AB - BACKGROUND: Non-Hodgkin lymphoma (NHL) is a diverse group of lymphoma comprises of divergent tumors with paradoxical clinical behaviors and potential difference in response to therapy. We conducted a data-base analysis on NHL patients to evaluate the clinico-epidemiological features and WHO spectrum of NHL in Pakistani patients. MATERIALS AND METHODS: This descriptive study was conducted over a period of 5 years from January 2011 to December 2015 at Hematology department of Liaquat National Hospital. All NHL cases were diagnosed by morphology on H&E sections and Immunohistochemical profile according to WHO classification of lymphoid neoplasms. RESULTS: 184 histopathologically confirmed cases of NHL were identified. There were 139 males and 45 females, with a male to female ratio of 3: 1. The mean age was 48.5+/-16.0 years with the median age of 50 years. B symptoms were present in 80.4% of patients. Lymph node enlargement was present in 71.1% of the cases. 168 patients ad B-cell lymphoma (91.3%) and 16 patients had T-cell (8.6%) lymphoma. Overall 158 (85.8%) patients had aggressive lymphoma. Histopathologically, Diffuse large B-cell lymphoma constituted major subtype in 67.9%, followed by follicular lymphoma in 7.6% patients. Marginal lymphoma in 3.8%patients, 3.2% patients had mantle cell, 2.7% patients of anaplastic large cell and 2.1% patients each for Burkitt's lymphoma and T-cell rich lymphoma. In T cell neoplasm, peripheral T cell lymphoma and adult T cell lymphoma are the main variants accountable in 4.3% and 3.2% respectively. CONCLUSIONS: B cell lymphoma is more frequent than T cell lymphoma with diffuse large B-cell lymphoma being the commonest NHL. Our analysis shows that clinicopathological features of NHL are comparable to published data. However, aggressive lymphoma and predominance of B symptoms are more frequently seen. PMID- 29019325 TI - Ambiguity of Whole Body PET CT Scans in Diagnosis of Co-existing Tuberculosis and Malignancy: Is Histopathological Confirmation Mandatory? AB - INTRODUCTION: Whole body PET CT is an important investigation tool in malignancy patients and helps in ascertaining the metabolic activity and exact stage of the disease. However, like any other investigation, false positive results do exist and certain diseases other than cancer may show increased uptake. Hence, a careful evaluation of PET CT and clinical correlation in malignancy patients is a must to accomplish the suitable treatment. METHODS: In this retrospective observational study, seven cases of cancer with concomitant tuberculosis were included. All the patients were proven malignancy patients with advanced or metastatic stage. On clinical suspicion, a tissue diagnosis was obtained which led to change in staging as well as management of the patients. RESULTS: Seven patients were having primary diagnosis of carcinoma breast, carcinoma esophagus, coepidermoid carcinoma of submandibular salivary gland, carcinoma tongue, squamous cell carcinoma skin, carcinoma cervix and carcinoma endometrium. They showed FDG uptake at distant sites leading to upstaging of disease. On histopathological examination, lymph nodal mass reported granulomatous lymphadenitis, leading to change of overall staging and management of the patients. DISCUSSION AND CONCLUSIONS: Whole Body PET CT scan may produce false positive results and upstage the disease. It should be evaluated and interpreted with caution in cases of doubtful findings and any abnormal FDG accumulation in PET CT scan at unusual locations should be evaluated carefully and confirmed histopathologically. PMID- 29019327 TI - Disclosure of Adverse Cancer News: The Public's Perspective in a Middle Eastern Country. AB - OBJECTIVES: The disclosure to patients of unfavorable news related to cancer remains a controversial issue in the Middle East. This study investigated the perspective of the public in Saudi Arabia regarding the disclosure of unfavorable cancer-related news. METHODS: A convenience sample of 103 adult noncancer patients attending a family medicine clinic were asked to respond to 9 closed ended questions. These questions reflected possible adverse news from the time of diagnosis until the end of life. The primary endpoint was an affirmative response (AR) to =7 questions (AR=7) indicating a preference to be informed of the majority (=78%) of adverse situations. RESULTS: One hundred individuals completed the questionnaire. Of these, 56 (56%) were male, and 44 (44%) were female. The median age was 32 years (18-75 years). Different questions were answered affirmatively by 76-99% of the responders. An AR=7 was reported by 83% of the responders. There was no statistically significant correlation between an AR=7 and age, gender or employment status (Chi-squared P values: 0.731, 0.427, and 0.148, respectively). There was a trend towards an AR=7 among those with higher levels of education compared to those with a lower level of education (88% and 73%, respectively, P=0.055). CONCLUSION: The results of this study suggest that the majority of Saudi Arabians prefer to be informed of most of the adverse health-related news if diagnosed with cancer. These results should encourage physicians to keep cancer patients informed of their health-related events unless the patient indicates otherwise. PMID- 29019326 TI - Epidemiology and Outcomes with Platinum-Based Chemotherapy in Recurrent or Metastatic Carcinoma Cervix in a Developing Country: Experience from a Tertiary Oncology Centre in Southern India. AB - INTRODUCTION: Carcinoma cervix is the leading cause of cancer in Indian women. Recurrent/metastatic cervix is the most aggressive form of the disease. There is paucity of data in this setting in Indian women regarding outcomes with palliative chemotherapy. METHODS: We retrospectively analyzed hospital registry data between January 2013 and December 2014 for recurrent/metastatic carcinoma cervix patients who were planned for palliative chemotherapy and assessed their demographic parameters, response and survival outcomes with chemotherapy. RESULTS: We identified 165 cases of recurrent/metastatic carcinoma cervix. Median age at presentation was 48 years. Most common symptoms at presentation were bleeding or white discharge per vagina and lower abdominal pain. Majority of the patients were multiparous. Histologically squamous cell carcinoma was found most commonly (93.3%) with adenocarcinoma and adenosquamous carcinoma being exceedingly uncommon (3.63% each). 38% of patients were upfront metastatic while rest were recurrent disease. Most common sites of metastasis were retroperitoneal lymph nodes (21.21%), liver (11.51%), lung (9.69%), supraclavicular lymph nodes (8.48%) and bone (7.27%). After a median of 6 cycles of paclitaxel and carboplatin based chemotherapy, overall response rate (ORR) was 26.7% with 10.5% complete remission (CR) and 16.4% partial remission (PR) rates. Median progression free survival (PFS) was 6 months while median overall survival (OS) was 11 months. CONCLUSION: Recurrent/metastatic cervical carcinoma is an aggressive disease. Our patients showed an ORR of 26.7% to palliative chemotherapy with median PFS of 6 months and median OS of 11 months. Further research is required related to novel targeted agents and nonplatinum doublets. PMID- 29019321 TI - Beyond excitation/inhibition imbalance in multidimensional models of neural circuit changes in brain disorders. AB - A leading theory holds that neurodevelopmental brain disorders arise from imbalances in excitatory and inhibitory (E/I) brain circuitry. However, it is unclear whether this one-dimensional model is rich enough to capture the multiple neural circuit alterations underlying brain disorders. Here, we combined computational simulations with analysis of in vivo two-photon Ca2+ imaging data from somatosensory cortex of Fmr1 knock-out (KO) mice, a model of Fragile-X Syndrome, to test the E/I imbalance theory. We found that: (1) The E/I imbalance model cannot account for joint alterations in the observed neural firing rates and correlations; (2) Neural circuit function is vastly more sensitive to changes in some cellular components over others; (3) The direction of circuit alterations in Fmr1 KO mice changes across development. These findings suggest that the basic E/I imbalance model should be updated to higher dimensional models that can better capture the multidimensional computational functions of neural circuits. PMID- 29019328 TI - Second Primary Tumors associated with Breast Cancer: Kuwait Cancer Control Center Experience. AB - OBJECTIVES: To review the clinico-epidemiologic characteristics of patients who presented with two or more primary cancers, one of which was breast cancer (BC) and to develop a follow-up program for the high risk patients. PATIENTS AND METHODS: Patients who were diagnosed with BC and one or more non breast cancer (NBC) were retrospectively reviewed. Medical files were retrieved and epidemiological as well as clinical data were analyzed. RESULTS: Sixty-two patients were retrieved. BC was the first primary in 26 patients while it was the second in 36 patients. Two were males and 60 were females. The median age was 48 years and the median follow-up was 11.5 years. The median interval between the 1st and 2nd primary was 6 years. The most commonly associated NBCs were colon and thyroid cancers, each accounts for 24% of cases followed by endometrial cancer, 18%; Hodgkin's disease, 6.5%; renal and ovarian neoplasm and NHL, 5% each. Others included prostate, lung, cervical and gastric cancers, soft tissue sarcoma and osteosarcoma. Thyroid cancer was more common as first cancer while endometrial cancer was more as second cancer. All patients who developed BC following Hodgkin's disease had received chest irradiation. Seven patients developed 3rd primary (4 lung cancers, 2 NHL, and 1 AML). CONCLUSION: Patients who were diagnosed with BC should be screened for colon and endometrial cancer. Similarly, patients received chest irradiation at young age, and those diagnosed with thyroid or colon cancer should be screened for BC. Protocol of surveillance needs to be defined. Genetic counseling should be offered to individuals who have experienced multiple primary cancers particularly those with family history and young age of onset. PMID- 29019322 TI - Recruitment dynamics of ESCRT-III and Vps4 to endosomes and implications for reverse membrane budding. AB - The ESCRT machinery mediates reverse membrane scission. By quantitative fluorescence lattice light-sheet microscopy, we have shown that ESCRT-III subunits polymerize rapidly on yeast endosomes, together with the recruitment of at least two Vps4 hexamers. During their 3-45 s lifetimes, the ESCRT-III assemblies accumulated 75-200 Snf7 and 15-50 Vps24 molecules. Productive budding events required at least two additional Vps4 hexamers. Membrane budding was associated with continuous, stochastic exchange of Vps4 and ESCRT-III components, rather than steady growth of fixed assemblies, and depended on Vps4 ATPase activity. An all-or-none step led to final release of ESCRT-III and Vps4. Tomographic electron microscopy demonstrated that acute disruption of Vps4 recruitment stalled membrane budding. We propose a model in which multiple Vps4 hexamers (four or more) draw together several ESCRT-III filaments. This process induces cargo crowding and inward membrane buckling, followed by constriction of the nascent bud neck and ultimately ILV generation by vesicle fission. PMID- 29019329 TI - Implications of Observer Variation in Gleason Scoring of Prostate Cancer on Clinical Management: A Collaborative Audit. AB - BACKGROUND: Prostate cancer is the most frequently diagnosed cancer in men. Histological tumour grade is a strong predictor of outcome and helps determine what treatment options are offered. There are numerous studies on Inter-observer agreement/variability on prostate cancer grading. In this study, we were looking to establish if disconcordance between pathologists when grading prostate cancer, could affect treatment options offered to men. METHODS: In Greater Manchester West Cancer Sector, all prostate cancer biopsies undergo a central review by three pathologists with a special interest in urological pathology prior to referral for treatment at specialist centres. 96 prostate biopsies (from 48 patients) from a District General Hospital were reviewed during a 6-month period (March 2014-September 2014). The original Gleason Score assigned was compared with the uropathologists consensus diagnosis established at the central review meeting. Any changes in patient risk and treatment plans were subsequently reviewed. RESULTS: Of the 96 biopsies discussed at central review meeting, 24 (25%) biopsies from 19 patients underwent a change in Gleason grade and a subsequent change in risk for 13 (68%). Of the 19 patients, management plans could be affected for 9 patients (47%) and treatment options could potentially be affected for 5 (26%). CONCLUSION: This study shows that where disconcordance between pathologists is present, there is the potential to affect patient management. A central review process can help to minimize the effect over or undergrading can have on the patient and should be considered a necessary step in the management of prostate cancer. PMID- 29019330 TI - Squamous Cell Carcinoma of the Buccal Mucosa: A Single Institute Retrospective Analysis of Nodal Involvement and Survival. AB - BACKGROUND: The magnitude of head and neck (H&N) cancers in the Indian subcontinent is very high. Neck nodal involvement is indicative of higher stage and subsequent adverse prognosis when compared with node negative disease. The frequency of such spread is greater than 20% for most H&N squamous cell carcinomas (SCC). The purpose of this study was to analyze the pattern of nodal metastasis in patients presenting with SCC of buccal mucosa (BM) and correlate it with survival. PATIENTS AND METHODS: Ninety-nine cases of carcinoma BM who received post op radiotherapy were analyzed retrospectively. Medical records were reviewed and data collected from the hospital case files. Patients were analyzed for age and sex distribution, tumor staging, metastasis and overall survival. RESULTS: The majority of cases were T4 lesions (n=40, 40.40%), followed by T2 lesions (n=35, 35.35%). T3 lesions constituted for 19.19% cases (n=19) while there were five cases (5.05%) of T1 lesions. 62 patients (62.62%) had positive neck nodes, with/without adverse pathologic features mandating post-operative radiotherapy, while 37 patients (37.37%) did not have any neck nodal involvement. The mean overall survival of the node negative patients (n=37) was 14.51 months (range 02-61 months) and was significantly more (p=0.03) than that of the node positive patients [10.82 months (range 01-35 months)]. A statistically significant difference in survival was also seen between the node negative patients and patients with >3 positive neck nodes (p=0.04). CONCLUSION: Neck nodal involvement in cases of carcinoma BM is an adverse prognostic indicator. The number of pathological positive neck nodes can be used as a predictor of treatment outcome. PMID- 29019331 TI - Clinical and Pathological Characteristics of Triple Positive Breast Cancer among Iraqi Patients. AB - BACKGROUND: Breast cancer is the most common malignancy affecting the Iraqi population and the leading cause of cancer related mortality among Iraqi women. It has been well documented that prognosis of patients depends largely upon the hormone receptor contents and HER-2 over expression of their neoplasm. Recent studies suggest that Triple Positive (TP) tumors, bearing the three markers, tend to exhibit a relatively favorable clinical behavior in which overtreatment is not recommended. AIM: To document the different frequencies of ER/PR/HER2 breast cancer molecular subtypes focusing on the Triple Positive pattern; correlating those with the corresponding clinico-pathological characteristics among a sample of Iraqi patients diagnosed with the disease. PATIENTS AND METHODS: This retrospective study involved 570 female patients diagnosed with breast cancer who visited the Main Referral Center for Early Detection of Breast Cancer and the National Cancer Research Center. The requested data was mainly extracted from an established information system database, developed by the principal author over a 4-years period from 2012 to 2016. The registered information comprised data related to clinical presentation, diagnostic and pathologic findings. ER, PR and HER2 status were analyzed immunohistochemically and the detected profiles were correlated with the corresponding clinico-pathological characteristics. RESULTS: The rates of ER (+), PR (+) and HER-2 (+) tumors were 66.8%, 64% and 29.3% respectively. The tumor marker expression status was documented in eight subtypes; 83 cases (14.6%) of the examined breast carcinomas were categorized as ER+/PR+/HER2+ (Triple Positive/Luminal B), 89 cases (15.6%) were ER-/PR-/HER2- (Triple Negative), 241 (42.2%) were ER+/PR-/HER2- (Luminal A) while 67 (11.8%) showed ER-/PR-/HER2+ expression (HER-2 variant). No significant variations were noted when comparing age, menopausal status and tumor grade of Luminal B pattern to Luminal A and the rest of the studied subtypes. Although our data revealed a statistical difference with respect to the distribution of tumor types; where infiltrative ductal carcinoma constituted the major histology among patients with Triple Positive/Luminal B subtype (86.7% as compared to 67.6% in Luminal A), nevertheless, more than two third of those patients (67.4%) were diagnosed at earlier stages (I and II) compared to 55.2% of those in the remaining groups. CONCLUSIONS AND RECOMMENDATIONS: Our findings support the hypothesis that the Triple Positive subtype might be driven primarily by the hormone receptor status. Further comprehensive surveys are recommended to focus on the intrinsic interactions and tumor cell heterogeneity of that pattern to avoid overtreatment and predict accurate response to therapy. PMID- 29019332 TI - Pre-Treatment Nutritional Status and Radiotherapy Outcome in Patients with Locally Advanced Head and Neck Cancers. AB - AIM: Poor oral intake and associated nutritional depletion can affect treatment outcome in locally advanced head and neck cancers. The aim of this study was to evaluate the pre radiotherapy nutritional status as a predictor for response to radiotherapy treatment. PATIENTS AND METHODS: Fifty patients of locally advanced head and neck cancers undergoing radical chemoradiotherapy were evaluated in this prospective analysis. Patients were treated with definitive radiotherapy to a total dose of 60-70 Gy along with concurrent chemotherapy with injection Cisplatin 100mg/m2 delivered three weekly. The patients were evaluated for pre treatment nutritional status using the Patient-Generated Subjective Global Assessment (PG-SGA) questionnaire. The PG-SGA evaluation was completed just before starting radiotherapy treatment and scores correlated to treatment outcome. RESULTS: Forty-seven male and three female patients were evaluated in this analysis. The median PG-SGA score was 8 with a range from 2-14.Grade 3-4 mucositis was seen in seven patients (21.8%) with PGSGA <9 compared to 55.5% in those with PG-SGA score = 9 (p=0.01). At the time of evaluation a complete response was seen in 16 patients (32%) with a PG-SGA score <9 compared to 4 patients (8%) with a PGSGA =9 (p=0.05). The median survival was 16+/-2.8months (Median +/-S. Error) and 17+/-2.9 months in those with PG-SGA <9 and =9 respectively (p=0.49, log rank). CONCLUSION: PG-SGA nutritional score <9 is associated with a better local control and acute toxicity profile in radically treated head and neck cancer patients. PMID- 29019333 TI - Evaluation of BRCA1 Large Genomic Rearrangements in Group of Egyptian Female Breast Cancer Patients Using MLPA. AB - INTRODUCTION: Breast cancer is one of the most widespread cancers affecting women all over the world. In Egypt, it is considered to be the first cause of malignancies among female. BRCA1 Large Genomic Rearrangements (LGRs) have been reported in hereditary breast families and occurs in considerable proportion of cases in various populations. OBJECTIVE AND METHODS: We investigated the incidence of BRCA1 LGRs in group of Egyptian females with breast cancer using Multiplex Ligation-dependent Probe Amplification (MLPA) assay. RESULTS: Thirty six female breast cancer patients were included in this study. There were no BRCA1 LGRs detected in the studied group of patients which does not coincide with other study that were done on a group of Egyptian female patients. DISCUSSION AND CONCLUSION: This variance may be due to the small number of the investigated patients in both studies, which is considered as a limitation. So, screening for LGRs of BRCA1 gene as well as other genes that may be involved in breast cancer such as BRCA2 and CHEK2 genes of a larger number of patients is recommended to get the actual prevalence of these gene in the Egyptian population to deliver a cost-effective primary approach for these patients. PMID- 29019334 TI - Brain Metastasis from Colorectal Adenocarcinoma: A Case Report. AB - Colorectal cancer (CRC) is the third leading cause of cancer death in the Western world, accounting for approximately 140,000 new cases and more than 51,000 deaths in 2010 in the United States. In Kuwait, CRC is the first most-diagnosed neoplasm among males and overall, the second leading cause of death from cancer. The 5 year survival rate in 2002-2004 was 61% for men and 62% for women. Even after complete resection of the colorectal tumor, distant metastases have been noted to develop in 10%-15% of patients. Of all metastases, those to the liver were found in 20%-30% of cases, and to the lung, in 10%-20%; brain metastases are quite rare. The percentage of CRC patients developing brain metastases during the course of their disease is reported to range from 2% to 12%, but the effect of such metastases on the patient's prognosis is significant. With the advent of new targeted therapies and the resulting improvements in outcome for CRC patients, the management policy for brain metastases has changed. Regardless of the therapy used to address brain metastases, reported median survival ranges from 2.8 months to 6 months. We report a case of brain metastasis in a patient of primary colorectal adenocarcinoma. He was evaluated for convulsion, CT findings showed brain metastasis. PMID- 29019335 TI - Leiomyosarcoma of Penis: An Aggressive and Exceptionally Rare Entity. AB - Penile leiomyosarcoma is a very rare disease of penile mesenchymal tissue, most of them are of vascular origin and pathologically classified into the superficial and deep type. Because of the small number of cases reported so far, the conclusions about treatment and prognosis are equivocal. Here we report a case of 40-year old patient who presented with leiomyosracoma of penis; despite adequate surgery patient developed local recurrence and distant metastasis indicating aggressive nature of leiomyosarcoma entity of penis. PMID- 29019336 TI - Chemotherapy-Induced Febrile Neutropenia in Solid Tumours. AB - Febrile neutropaenia (FN) is defined as an oral temperature of >38.3 degrees C or two consecutive readings of >38.0 degrees C for 2 hours and an absolute neutrophil count (ANC) of <0.5 * 109/l, or expected to fall below 0.5 * 109/l. Fever is one of the characteristic symptoms of FN and is usually associated with the presence of an infection caused by various microorganisms. The incidence and epidemiology of FN are variable based on different factors: (type of cancer, the age/sex of the patient, chemotherapy type /number of cycles). FN remains one of the most common and risky complications of chemotherapy which occurred within 6-8 days with standard chemotherapy and it is occurred as about 7-8/1000 patients receiving treatment with chemotherapeutic agents. There is a clear relationship between the severity of neutropaenia (which directly influences the incidence of FN) and the intensity of chemotherapy. Currently, the different regimens are classified as producing a high risk (>20%), an intermediate risk (10%-20%) or a low risk (<10%) of FN. The causative organisms including either bacteria, fungi or viruses. The bacteria Gram-positive (currently dominating) and Gram-negative (Dominant in the 1970s), are usually the main microorganisms responsible for FN and cause complicated infections. Although the morbidity and mortality rates of FN have decreased over the years due to use of proper antibiotic treatment, preventive measures and use the standardrisk management plan as per guidelines but it is still one of oncological emergency. FN is responsible for considerable morbidity as 20%-30% of patient's present complications that require in-hospital management, with an overall in-hospital mortality of ~10%. PMID- 29019337 TI - Monte Carlo simulation of beta particle-induced bremsstrahlung doses. AB - It is well known that protection from the external irradiation produced by beta emitters is simpler than the corresponding shielding of radioactive sources that emit gamma radiation. This is caused by the relatively strong absorption (i.e. short range) of electrons in different materials. However, for strong beta sources specific attention should be paid to the bremsstrahlung radiation induced in the source encapsulation (matrix), especially for emitters with relatively high beta-endpoint energy (1 MeV) that are frequently used in nuclear medicine. In the present work, the bremsstrahlung spectra produced in various materials by the following beta emitters, Sr-90 (together with its daughter Y-90), P-32 and Bi 210, were investigated by Monte Carlo simulations using Geant4 software. In these simulations, it is supposed that the point radioactive sources are surrounded by cylindrically shaped capsules made from different materials: Pb, Cu, Al, glass and plastic. For the case of Y-90(Sr-90) in cylindrical lead and aluminum capsules, the dimensions of these capsules have also been varied. The absorbed dose rates from bremsstrahlung radiation were calculated for cases where the encapsulated point source is placed at a distance of 30 mm from the surface of a water cylinder with a mass of 75 kg (approximately representing the human body). The bremsstrahlung dose rate and bremsstrahlung spectrum from the Y-90(Sr-90) point source encapsulated in an Al capsule were also measured experimentally and compared with the corresponding simulation results. In addition, the bremsstrahlung radiation risk for medical staff in therapies using Y-90 was considered in simulations, relating to finger dose as well as whole-body dose during preparation and injection of this radioisotope. The corresponding annual doses were obtained for medical workers for specified numbers of Y-90 applications to patients. PMID- 29019338 TI - Reduced graphene oxide-germanium quantum dot nanocomposite: electronic, optical and magnetic properties. AB - Graphene provides numerous possibilities for structural modification and functionalization of its carbon backbone. Localized magnetic moments can, as well, be induced in graphene by the formation of structural defects which include vacancies, edges, and adatoms. In this work, graphene was functionalized using germanium atoms, we report the effect of the Ge ad atoms on the structural, electrical, optical and magnetic properties of graphene. Reduced graphene oxide (rGO)-germanium quantum dot nanocomposites of high crystalline quality were synthesized by the microwave-assisted solvothermal reaction. Highly crystalline spherical shaped germanium quantum dots, of diameter ranging between 1.6-9.0 nm, are anchored on the basal planes of rGO. The nanocomposites exhibit high electrical conductivity with a sheet resistance of up to 16 Omega sq-1. The electrical conductivity is observed to increase with the increase in Ge content in the nanocomposites. High defect-induced magnetization is attained in the composites via germanium adatoms. The evolution of the magnetic moments in the nanocomposites and the coercivity showed marked dependence on the Ge quantum dots size and concentration. Quantum confinement effects is evidenced in the UV-vis absorbance spectra and photoluminescence emission spectra of the nanocomposites which show marked size-dependence. The composites manifest strong absorption in the UV region, strong luminescence in the near UV region, and a moderate luminescence in the visible region. PMID- 29019339 TI - Facile synthesis of graphitic C3N4 nanoporous-tube with high enhancement of visible-light photocatalytic activity. AB - A simple and convenient method was used to synthesize a graphitic carbon nitride (g-C3N4) nanoporous-tube by using SiO2 nanoparticles as pore formers. The structure of the g-C3N4 nanoporous-tube was characterized by the SEM and TEM images. Taking photodegradation of RhB as an example, the photocatalytic activity of the as-prepared g-C3N4 nanoporous-tube was investigated. It can photodegrade 90% RhB in 40 min under visible-light irradiation and obtain a k value of 0.04491 min-1, which is 8.16 times that of bulk g-C3N4, 3.09 times that of tubular g-C3N4 and 1.48 times that of tubular g-C3N4-SiO2. The significant enhancement in photocatalytic efficiency is due to the edge effect of the pores and the special structure of the tubes. In addition, the possible mechanism of photocatalytic degradation of RhB was also proposed based on the trapping experiment of active species, which indicated that the superoxide radicals ([Formula: see text]) and the holes (h +) were the main reactive species in this photocatalyst. This work may open up a new idea of innovation in g-C3N4 structure and inspire its follow up study. PMID- 29019340 TI - The influence of the dimensionality of the system on the realization of unconventional Fulde-Ferrell-Larkin-Ovchinnikov pairing in ultra-cold Fermi gases. AB - The recent development of experimental techniques in ultracold atomic Fermi gases is extremely helpful in the progress of the realization of the unconventional Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superfluid phase in quasi-one dimensional systems (Liao et al 2010 Nature 467 567). Due to a Fermi surface nesting, which is enhanced in 1D, the low-dimensional systems are particularly good candidates to find the FFLO phase stable. We investigate the influence of a dimensional crossover (from one dimension (1D) to two dimensions (2D) or three dimensions (3D)) on the stability of the FFLO state in the spin-imbalanced attractive Hubbard model. PMID- 29019341 TI - Controllable synthesis of a novel magnetic core-shell nanoparticle for dual-modal imaging and pH-responsive drug delivery. AB - In this study, novel magnetic core-shell nanoparticles Fe3O4@La-BTC/GO have been synthesized by the layer-by-layer self-assembly (LBL) method and further modified by attachment of amino-modified PEG chains. The nanoparticles were thoroughly characterized by x-ray diffraction, FTIR, scanning electron microscopy and transmission electron microscopy. The core-shell structure was shown to be controlled by the LBL method. The drug loading of doxorubicin (DOX) within the Fe3O4@La-BTC/GO-PEG nanoparticles with different numbers of deposited layers was investigated. It was found that DOX loading increased with increasing number of metal organic framework coating layers, indicating that the drug loading can be controlled through the controllable LBL method. Cytotoxicity assays indicated that the Fe3O4@La-BTC/GO-PEG nanoparticles were biocompatible. The DOX was released rapidly at pH 3.8 and pH 5.8, but at pH 7.4 the rate and extent of release was greatly attenuated. The nanoparticles therefore demonstrate an excellent pH-triggered drug release. In addition, the particles could be tracked by magnetic resonance imaging (MRI) and fluorescence optical imaging (FOI). A clear dose-dependent contrast enhancement in T 2-weighted MR images and fluorescence images indicate the potential of these nanoparticles as dual-mode MRI/FOI contrast agents. PMID- 29019342 TI - The impact of a gamified world on medical education. PMID- 29019343 TI - The association between dietary inflammatory properties and bone mineral density and risk of fracture in US adults. AB - BACKGROUND/OBJECTIVES: To examine the associations of dietary inflammatory index (DII) with bone mineral density (BMD) and fracture risk in adult Americans.Subjects/Method:The United States National Health and Nutrition Examination Survey participants during 2005-2010 were included if they had measured data on dietary intake and BMD. DII scores were calculated from estimated micro- and macronutrients from a single 24-h dietary recall. BMD was measured using dual-energy X-ray absorptiometry densitometers. Risk of fractures was obtained from participant self-report (ever) based on doctor information. Analyze of covariance and chi2-tests were employed, while accounting for the complex survey design. RESULTS: A total of 18 318 participants were included, with 51.3% (9397) being men. Age, sex, race, physical activity, smoking, C reactive protein and body mass index-adjusted mean BMD (g/cm2) in different bodily sites significantly decreased across increasing quarters of the DII (all P<0.001). After further adjustment for calcium intake, the trend in BMD across DII quarters remained significant for total femur, femoral neck, trochanter and intertrochanter BMD (all P<0.001). Across increasing quarters of the DII, the proportion of fractures ranged from 1.1 to 1.5% for hip fracture (P=0.02), from 7.9 to 10.5% for wrist fracture (P<0.001) and from 2.2 to 2.7% for spine fracture (P=0.002. Prevalent wrist fractures significantly differed across DII quarters (P<0.0001), driven by high prevalence in the top quarter, while hip and spine fractures' prevalence did not vary significantly. CONCLUSIONS: The current study provides evidence suggesting a potential adverse effect of pro-inflammatory diet on bone health; which may have implications for dietary approaches for those with history of abnormal bone health complications. PMID- 29019347 TI - Pituitary gland: Gamma Knife for Cushing disease - time for a reappraisal? PMID- 29019345 TI - Suspect screening of maternal serum to identify new environmental chemical biomonitoring targets using liquid chromatography-quadrupole time-of-flight mass spectrometry. AB - The use and advantages of high-resolution mass spectrometry (MS) as a discovery tool for environmental chemical monitoring has been demonstrated for environmental samples but not for biological samples. We developed a method using liquid chromatography-quadrupole time-of-flight MS (LC-QTOF/MS) for discovery of previously unmeasured environmental chemicals in human serum. Using non-targeted data acquisition (full scan MS analysis) we were able to screen for environmental organic acids (EOAs) in 20 serum samples from second trimester pregnant women. We define EOAs as environmental organic compounds with at least one dissociable proton which are utilized in commerce. EOAs include environmental phenols, phthalate metabolites, perfluorinated compounds, phenolic metabolites of polybrominated diphenyl ethers and polychlorinated biphenyls, and acidic pesticides and/or predicted acidic pesticide metabolites. Our validated method used solid phase extraction, reversed-phase chromatography in a C18 column with gradient elution, electrospray ionization in negative polarity and automated tandem MS (MS/MS) data acquisition to maximize true positive rates. We identified "suspect EOAs" using Agilent MassHunter Qualitative Analysis software, to match chemical formulas generated from each sample run with molecular formulas in our unique database of 693 EOAs assembled from multiple environmental literature sources. We found potential matches for 282 (41%) of the EOAs in our database. Sixty-five of these suspect EOAs were detected in at least 75% of the samples; only 19 of these compounds are currently biomonitored in National Health and Nutrition Examination Survey. We confirmed two of three suspect EOAs by LC QTOF/MS using a targeted method developed through LC-MS/MS, reporting the first confirmation of benzophenone-1 and bisphenol S in pregnant women's sera. Our suspect screening workflow provides an approach to comprehensively scan environmental chemical exposures in humans. This can provide a better source of exposure information to help improve exposure and risk evaluation of industrial chemicals. PMID- 29019346 TI - Occupational exposure to pesticides: development of a job-exposure matrix for use in population-based studies (PESTIPOP). AB - Occupational exposure to pesticides concerns a wide population of workers not only in agriculture. The reliability of self-reported information on pesticide use is questionable because of the diversity of use. The PESTIPOP job-exposure matrix has been designed to assess pesticide occupational exposure in the general population. The matrix is composed of two axes: the first axis corresponding to jobs (combinations of occupations and industries) and the second one to pesticide exposure. The estimated exposure metric is the probability of exposure coupled with a reliability assessment (low, medium or high). These metrics were defined by combining different sources: (1) an a priori expert assessment (Agricultural industry experts); (2) data from a multicenter case-control study on brain tumors in the general population (occupational history, specific questionnaires); and (3) an a posteriori expert assessment based on the data of a case-control study. So far, 2559 jobs have been identified and 209 (8%) were found to be exposed to pesticides. Jobs with agricultural exposure had a higher exposure probability than jobs with non-agricultural exposure (wood preservation, park maintenance, pest control). Indirect exposure was more frequent than direct exposure. The PESTIPOP matrix will be transcoded into international classifications for use in epidemiological studies. PMID- 29019348 TI - Paediatric endocrinology: Can niacin supplementation protect against congenital malformations? PMID- 29019349 TI - Do workers' health surveillance examinations fulfill their occupational preventive objective? Analysis of the medical practice of occupational physicians in Catalonia, Spain. AB - OBJECTIVES: Although routine workers' health examinations are extensively performed worldwide with important resource allocation, few studies have analyzed their quality. The objective of this study has been to analyze the medical practice of workers' health examinations in Catalonia (Spain) in terms of its occupational preventive aim. MATERIAL AND METHODS: A cross-sectional study was carried out by means of an online survey addressed to occupational physicians who were members of the Catalan Society of Safety and Occupational Medicine. The questionnaire included factual questions on how they performed health examinations in their usual practice. The bivariate analysis of the answers was performed by type of occupational health service (external/internal). RESULTS: The response rate was 57.9% (N = 168), representing 40.3% of the reference population. A high percentage of occupational physicians had important limitations in their current medical practice, including availability of clinical and exposure information, job-specificity of tests, and early detection and appropriate management of suspected occupational diseases. The situation in external occupational health services - that covered the great majority of Catalan employees - was worse remarkably in regard to knowledge of occupational and nonoccupational sickness absence data, participation in the investigation of occupational injuries and diseases, and accessibility for workers to the occupational health service. CONCLUSIONS: This study raises serious concerns about the occupational preventive usefulness of these health examinations, and subsequently about our health surveillance system, based primarily on them. Professionals alongside health and safety institutions and stakeholders should promote the rationalization of this system, following the technical criteria of need, relevance, scientific validity and effectiveness, whilst ensuring that its ultimate goal of improving the health and safety of workers in relation to work is fulfilled. Other countries with similar surveillance systems might be encouraged by our results to assess how their practices fit the intended purpose. Int J Occup Med Environ Health 2017;30(6):823-848. PMID- 29019350 TI - Influenece of the CPRmeter on angular position of elbows and generated forces during cardiopulmonary resuscitation. AB - OBJECTIVES: It is commonly known that ergonomics in emergency medical services (EMS) is very important. Emergency medical services workers are exposed to different conditions and they should perform a variety of tasks. MATERIAL AND METHODS: The aim of the work has been to analyze the angular position of elbows and forces generated by the upper limbs during cardiopulmonary resuscitation with and without the CPRmeter based on feedback technology. Ten male paramedics and 10 male non-paramedics, in a kneeling position, performed cardiopulmonary resuscitation (CPR) on an Ambu Megacode manikin placed on the ground. Measurements were taken after 1 min and 4 min following the beginning of the trial. The angular position of the elbows was evaluated with a BTS Smart DX 7000 motion capture system. Kistler platforms 9286BA were used for measuring forces. RESULTS: In the paramedic group, one statistically significant difference was observed in the mean difference between maximal and minimal right elbow angle in the 1st min without the device vs. the mean difference in the 4th min without the device. In the paramedic group, a 25% force decrease was observed after 4 min of resuscitation in trials without the CPRmeter in comparison to the 1st min. In trials with the CPRmeter, the force parameters were similar in the 1st and 4th min and more stable. No statistically significant differences were noticed in the control group. CONCLUSIONS: The CPRmeter has influence on the magnitude of the forces applied by the upper limbs and on the optimization of the rescuer effort during cardiopulmonary resuscitation. The CPRmeter had no influence on the position of the upper part of the kinematic chain. Int J Occup Med Environ Health 2017;30(6):909-916. PMID- 29019351 TI - Hot News: Exosomes as New Players in HIV Pathogenesis - New Data from the IAS 2017. AB - Exosomes are nanovesicles that can be released into the extracellular medium by different cell types and are considered an important system of intercellular communication. In some instances, on secretion, exosomes break down and release their content into the extracellular space. Alternatively, intact exosomes can interact with other cells and discharge their content directly into the target cell cytoplasm. Exosomes are rich in endosome-associated proteins (i.e., the tetraspanin family) but also carry different molecules in their lumen including proteins, RNAs (i.e., microRNAs), and pathogenderived cargo. Indeed, the different biological functions of exosomes might depend on their cargo components. Several recent publications have identified exosomes as new players in the pathogenesis of HIV infection. This is an emerging field of growing interest that deserved a satellite symposium at the 9th IAS Conference held in Paris in July 2017, sponsored by the International Society for Extracellular Vesicles (EVs). Although the role of exosomes in HIV infection is not yet clarified, accumulating data suggest that exosomes may act at different levels of HIV pathogenesis by modulating immune responses, infectivity, or even by activating the latent viral reservoir. However, there are still methodological limitations that need to be resolved to advance our understanding of the role of exosomes in HIV infection. One particular limitation is to define an accurate and reproducible procedure for their isolation. A new strategy to separate exosomes from HIV-1-infected cells was proposed at this symposium. Martin-Jaular and colleagues (Institut Curie, France) used velocity centrifugation gradients and antibody labeling of specific endosome-associated protein markers (i.e., CD45+ and AChE+) to isolate pure exosomes from complex preparations of EVs. Separately, Arakelyan and colleagues (NIH, USA) used flow cytometry coupled with magnetic nanoparticles to characterize the antigenic composition of EVs and demonstrate that EVs carrying HIV envelope proteins facilitated HIV infection. This is an interesting observation that could lead to the discovery of new antiviral drugs targeting EVs that contain HIV-Env. Exosomes might also have an effect on the viral reservoir. Kashanchi et al. (George Mason University, USA) presented interesting results demonstrating how exosomes from HIV-uninfected cells could reactivate latent HIV-1 in infected cells. They proposed a mechanism in which exosomes might increase RNA polymerase II loading onto the HIV-1 promoter in the infected cells, thereby facilitating transcription and leading to an increase of cellular activation. These presentations represent just a small piece of the growing body of research focused on the role of exosomes in HIV infection. We stand at the beginning of a new source of knowledge of HIV pathogenesis that may provide novel strategies to control HIV infectivity, regulate HIV-reactive immune responses, and act against the HIV reservoir. The impact of exosomes on HIV infection at all these levels should be considered in ongoing and future approaches to achieve HIV remission and cure. PMID- 29019352 TI - Hot News: Gene Therapy with CRISPR/Cas9 Coming to Age for HIV Cure. AB - The huge success of current antiretroviral therapy is mediated by a triple effect: (i) Halting progression to AIDS in infected persons; (ii) reducing the risk of transmission to contacts (treatment as prevention); and (iii) minimizing the risk of HIV acquisition treating uninfected persons at risk (pre-exposure prophylaxis). However, UNAIDS has estimated that only 70% of infected people globally are diagnosed, only 53% are treated, and overall 44% have undetectable viral load, which is the necessary request for ensuring any antiretroviral benefit. Thus, with 37 million people currently living with HIV worldwide and more than 2 million new infections per year, the prospects for global HIV eradication are far on the horizon. Over the past couple of years, rapid development has been seen for technologies enabling modification of gene expression, either by direct inhibition by RNA interference (RNAi) or by genomic modification at DNA level. In particular, genome-editing endonucleases have significantly improved our ability to make precise changes in the DNA of eukaryotic cells. Notably, firstgeneration genome-editing technologies (i.e., ZFNs and TALENs) have been replaced by clustered regularly interspaced short palindromic repeats (CRISPR/Cas9), which work with a short guide RNA (gRNA) to hybridize to a target DNA site and recruit the Cas9 endonuclease. Once integrated into the host genome, HIV gene expression is regulated by the LTR promoter. Hypothetically, gene editing of the HIV promoter might have the potential to deactivate viral transcription by the introduction of mutations or fragment excision. HIV gene therapy progressed very slowly until recent breakthroughs in gene-editing methods using CRISPR/Cas9 (Liao et al. Nat Commun 2015;6:6413). Using a shorter version of the Cas9 endonuclease ensembled into an adenoviral vector, critical segments of thAQ!e viral DNA genome spanning between the LTR and gag regions were successfully removed in HIV transgenic mice. Excision was confirmed in all examined tissues as well as in circulating lymphocytes and resulted in a drastic reduction of HIV-RNA (Kaminski et al. Gene Ther 2016;23:690 5). Moreover, using latently infected CD4+ T lymphocytes from HIV-infected persons, lentiviral-delivered CRISPR/Cas9 precisely removed the entire HIV genome spanning between the 50 and 30 LTRs of integrated HIV proviral DNA (Kaminski et al., Sci Rep 2016;6:22555), providing a proof of concept of the high potential of genome-editing technologies. Before moving to the clinic, the CRISPR/Cas9 technology must solve several major issues in the HIV scenario. First, generation of resistance is a major concern. Mutations may occur surrounding the targeted site and result in the selection of strains that are no longer recognized nor cleaved by CRISPR (Badia et al. Curr Opin Virol 2017;24:46-54). The efficacy of the anti-HIV CRISPR/Cas9 strategy is highly dependent on the gRNA sequence, yet some mutant viral strains show poor or no cleavage at all. Higher CRISPR/Cas9 pressure could delay but not eliminate viral replication when using a combination of distinct gRNAs targeting distinct HIV proviral genes. In this case, although the reading frame may remain unaltered, an accumulation of insertions and/or deletions may occur in the target sequence, rendering new viral strains insensitive to CRISPR/Cas9 cleavage. Finally, double-strand breaks resulting from CRISPR/Cas9 activity and subsequent cellular non-homologous end joining machinery may introduce mutations in sequences that are no longer recognized by the gRNA, and therefore not susceptible to Cas9 cleavage. A second consideration is a need for developing safe and effective mechanisms of delivery. Adenoviral vectors have long been studied in gene therapy and represent an ideal viral vector for transduction at different tissues. However, the packaging size of adenoviral vectors is a limiting factor, especially for CRIPSR/Cas9. Third, HIV has a genome of about 10 kb while a gRNA generally only targets 20 bp of the DNA molecule, which means that there are thousands available targeting sites for the provirus in latently infected cells. To date, there is no platform established solely for gRNA candidate evaluation in HIV provirus eradication. A final consideration is an access to all tissues and cells potentially harboring the HIV provirus, including reservoirs as the central nervous system. In this regard, efforts are being focused in the development of Cas9/gRNA nanoparticle formulations. To overcome these problems, a group in Florida recently developed human transgenic cells that may be used for gene-editing studies and as platform for high throughput screen of HIV provirus disrupters (Huang et al. Sci Rep 2017;7:5955). Of note, Cas9 protein instead of a Cas9 plasmid was used. Compared to a plasmid introduction, Cas9 protein agents could be easily quantitatively applied and standardized, mimicking better real clinic scenarios. In summary, RNAi-based technologies have widely dominated gene therapy research during the past decade, with overall slow progress. However, the advent of new gene-editing technologies, and especially the CRISPR/Cas9 system, has revolutionized the field. In the HIV context, CRISPR/Cas9 applications might go further than those of RNAi, for example, enabling excision of segments of integrated proviral DNA from latently infected cells and allowing complete provirus elimination, or it may be used to reverse HIV latency. Although important challenges still need to be overcome, a promising pathway to HIV cure seems to have been found. PMID- 29019353 TI - Hot News: Ready for HIV Dual Therapy? - New Data from International HIV/AIDS Society 2017. AB - The introduction of combination antiretroviral therapy (ART) in the 1990s has fundamentally transformed the landscape of HIV medicine, greatly improved disease morbidity and mortality, and reduced transmission rates across all demographic groups. Central to this success was the idea that to achieve best disease outcomes and minimize the development of drug resistance, at least three antiretroviral agents should be used for HIV treatment. This therapeutic strategy is a core tenet of HIV medicine, backed by incontrovertible scientific evidence, and made easy to deploy by the high compliance levels with once-daily coformulations, which have generally been well tolerated. However, there has been increasing support for a paradigm shift toward dual therapy in recent years, particularly during the maintenance therapy phase of treatment. This concept advocates that once virologic suppression has been achieved with at least three antiretroviral drugs during the treatment initiation phase, a switch to a two drug regimen should be possible. The results of Phase III of the SWORD trials (Llibre et al., Abstract 44LB) and LAMIDOL trial (Joly et al., Abstract 458) presented at the 2017. Conference on Retroviruses and Opportunistic Infections earlier this year seemed to lend support this hypothesis. More new evidence was recently presented at the 2107 International HIV/AIDS Society (IAS) meeting in Paris that adds to the growing body of evidence in favor of a two-drug regimen approach in maintenance therapy. The LATTE-2 study (Eron et al., Abstract 5628) was of major interest because of the exciting new therapeutic options that long acting injectable antiretroviral agents may bring in the near future. However, more than that, the findings of comparable response between a traditional three drug oral regimen and a novel injectable two-drug regimen at 96 weeks were quite noteworthy. In this Phase II, multicenter open-label study of 286 HIV-infected ARTnaive patients, once-daily oral cabotegravir/abacavir/lamivudine achieved virologic suppression in 84% of study participants. In comparison, 87% in the injectable cabotegravir/rilpivirine once every 4-weekly group and 94% in injectable cabotegravir/rilpivirine once every 8-weekly group remained suppressed at 96 weeks. Crucially, no drug resistance mutations were seen in study participants who remained on their regimen. While the idea of a two-drug regimen has been entertained for maintenance therapy, there may be little willingness to push this further into the area of antiretroviral treatment initiation, for the justifiable concerns that exist around the emergence of drug resistance. Despite this, new data presented at the IAS 2017 showed that the idea is not without merit. In a proof of concept, the ACTG A5353 single-arm pilot study of 120 treatment naive HIV-infected participants with high viral load (VL >=1000 and >500,000 copies/mL), showed that once-daily dolutegravir/lamivudine had virologic efficacy of 90% at 24 weeks, with 96% of the as-treated study population achieving VL >50 copies/mL (Taiwo et al., Abstract MOAB0107LB). The regimen was well tolerated, with no reported drug resistance mutations while on treatment. There are many real-world advantages to a two-drug regimen approach, among them lower costs (crucial in resource-limited settings where affordability may be a limiting factor), fewer adverse effects or drug toxicities, and possibly improved compliance. These are all important considerations, given that improved mortality now means patients are going to stay on ART treatment for much longer than previously seen. But how the two-drug regimen approach will hold up against firmly held norms and tradition is far from clear, and it is almost certain that the understandable nervousness that surrounds this idea will continue to last. Until the case for the two-drug regimen approach is made more convincingly in ongoing and future trials, the "three or more" rule will reign, not only as the orthodoxy but also as the cornerstone of good clinical practice. PMID- 29019355 TI - Improvement of thermal stability and photoluminescence in Sr0.8Ca0.2Al2Si2O8:Eu2+ by the substitution of Si-Na # Al-Sr and Ca # Sr for structural modifications. AB - Blue emitting phosphor is urgently needed in commercial application of white light emitting diodes for the reason that the existing ones lack proper emission and have poor thermal stability. Herein, we report two methods for Sr0.8Ca0.2Al2Si2O8:Eu2+ phosphors that were performed to optimize the luminescence properties and thermal stability based on structural reconstruction. One is partial substitution of Al3+-Sr2+ by Si4+-Na+ forming Sr0.77-xNaxCa0.2Al2 xSi2+xO8:0.03Eu2+ (x = 0-0.7); the other is altering the proportion of Ca2+ and Sr2+, forming Sr0.97-yCayAl2Si2O8:0.03Eu2+ (y = 0-0.97) solid solution. The phosphor's structural evolution, variation of the Eu2+ local environment, luminescence and thermal quenching were explored in detail. As a result, for Sr0.77-xNaxCa0.2Al2-xSi2+xO8:0.03Eu2+ (x = 0-0.7) series, (Al/Si)O4 tetrahedrons are enlarged and Eu-O polyhedrons are compressed; the emission gets red-shifted from 418 nm to 428 nm under 350 nm excitation; the thermostability of Sr0.97 yCayAl2Si2O8:0.03Eu2+ is improved with the incorporation of Si4+-Na+ pair. For Sr0.97-yCayAl2Si2O8:0.03Eu2+ (y = 0-0.97) series, the emission peak shows a large shift from 420 nm to 440 nm, which is attributed to a comprehensive result of nephelauxetic effect and crystal field splitting. Furthermore, thermal stability is improved by the coexistence of Ca2+ and Sr2+. White light emitting diodes fabricated by combining the as-prepared phosphor with commercial phosphors exhibit an excellent color rendering index Ra of 90.1 and a temperature of 4459 K with CIE coordinates of (0.357, 0.356). These results indicate that the as developed composition series are promising for commercial application. PMID- 29019356 TI - Pyrolysis of covalent organic frameworks: a general strategy for template converting conventional skeletons into conducting microporous carbons for high performance energy storage. AB - Here we describe a general strategy based on template pyrolysis for converting conventional covalent organic frameworks into high-performance carbons, which combines conductivity, microporosity and heteroatom density, thus casting a distinct contrast to those obtained upon direct pyrolysis. The carbons serve as electrodes and exhibit exceptional performance in energy storage. PMID- 29019357 TI - Construction of biological hybrid microcapsules with defined permeability towards programmed release of biomacromolecules. AB - An effective method to modulate the permeability of microcapsules on demand based on a "self-sacrificing" strategy was demonstrated, which then realized a programmed release of the corresponding loaded biomacromolecules. PMID- 29019358 TI - Protonation and electrochemical reduction of rhodium- and iridium-dinitrogen complexes in organic solution. AB - Protonation and reduction of pincer-ligated Rh- and Ir-N2 complexes have been studied by NMR spectroscopy and cyclic voltammetry to assess the capability of these complexes to activate or reduce N2. Protonation, which is a prerequisite to electrochemical reduction, results in a cationic metal-hydride that loses N2 under an atmosphere of Ar. Reduction of the metal-hydride results in fast disproportionation of an unobserved transient Ir2+ species. These studies suggest that the regioselectivity of initial protonation is a strong determinant for the ability of a system to facilitate the reduction of N2. PMID- 29019359 TI - Unprecedented magnetic behaviour in lanthanide-based ionic liquids. AB - Ionic liquids containing lanthanide halide anions give the opportunity to investigate magnetic behaviour in non-ordered systems. Reported herein is the synthesis and characterization of ionic liquids containing a series of lanthanide halide anions, with the resulting materials displaying unusual behaviour below 50 K. Specifically, the ionic liquid structural glass formation appears to drive magnetic behaviour due to cluster formation of the anions during rapid cooling. This system presents a possible probe to study the dynamics of glass forming materials. PMID- 29019360 TI - Mitigating the effects of high fat diet on the brain and behavior with berry supplementation. AB - Research on the potential of berries to modulate the effects of high fat diets on the brain and behavior is a relatively small and growing field. This review provides an overview of current findings from animal studies assessing the impact of high fat diets supplemented with blueberries, blackberries, grapes and jaboticaba berries on cognitive performance and neuroprotection. High fat diets are demonstrated to increase brain markers of oxidative stress and inflammation and result in other neural alterations that can contribute to impairments in learning and memory. Berries are rich in bioactive polyphenols and show promise for mitigating the effects of high fat diet. Challenges to systematic research include variability in diet composition and regimens, limitations of predominantly male animal models, and other factors. Links between peripheral inflammation and CNS dysfunction have implications for the understanding of underlying mechanisms and directions for future research. PMID- 29019361 TI - Copper(i)-catalysed asymmetric allylic reductions with hydrosilanes. AB - A copper(i)-catalysed asymmetric allylic reduction enables a regio- and stereoselective transfer of a hydride nucleophile in an SN2'-fashion onto allylic bromides. This transformation represents a conceptually orthogonal approach to allylic substitution reactions with carbon nucleophiles. A copper(i) complex based upon a chiral N-heterocyclic carbene (NHC) ligand allows for stereoselectivity reaching 99% ee. The catalyst enables a stereoconvergent reaction irrespective of the double bond configuration of the starting materials. PMID- 29019362 TI - An interesting 1,4,2,5-dioxadiazine-furazan system: structural modification by incorporating versatile functionalities. AB - Herein, the 1,4,2,5-dioxadiazine ring is combined with two furazan rings. Interestingly, the structure of the 1,4,2,5-dioxadiazine-furazan system can be modified by incorporating versatile functionalities. The N-trinitroethylamino functionalization derivatives and energetic salts based on 3,6-bis(4-amino-1,2,5 oxadiazol-3-yl)-1,4,2,5-dioxadiazine are investigated. Derivatives of these functionalities are synthesized and fully characterized via multinuclear NMR spectroscopy, IR spectroscopy, and elemental analysis. The structures of compounds 1-7 are further confirmed by single-crystal X-ray diffraction. Compounds 1-12 have moderate thermal stabilities (143-177 degrees C, except 2 (114 degrees C), and 3 (88 degrees C)) and exhibit acceptable sensitivities (IS 3.52-16.3 J and FS 100-240 N). Based on the measured densities (1.73-1.95 g cm-3) and heats of formation (573.5-2065.4 kJ mol-1), the detonation velocities (D 8519 9563 m s-1) and pressures (P 29.3-43.3 GPa) are calculated. Among them, the trinitroethylamino derivative 1 and ammonium salt of 3,6-bis(4-nitroamino-1,2,5 oxadiazol-3-yl)-1,4,2,5-dioxadiazine 5 show a layered assembly of the 1,4,2,5 dioxadiazine-furazan system. These two compounds show good thermal stabilities (1, 154 degrees C and 5, 177 degrees C) and relatively low sensitivities (1, 16.3 J and 5, 13.4 J). These properties indicate that the layer assembly structure is helpful to improve the thermal stabilities and result in low sensitivities for the corresponding compounds. PMID- 29019354 TI - Iron-sulfur cluster biosynthesis and trafficking - impact on human disease conditions. AB - Iron-sulfur clusters (Fe-S) are one of the most ancient, ubiquitous and versatile classes of metal cofactors found in nature. Proteins that contain Fe-S clusters constitute one of the largest families of proteins, with varied functions that include electron transport, regulation of gene expression, substrate binding and activation, radical generation, and, more recently discovered, DNA repair. Research during the past two decades has shown that mitochondria are central to the biogenesis of Fe-S clusters in eukaryotic cells via a conserved cluster assembly machinery (ISC assembly machinery) that also controls the synthesis of Fe-S clusters of cytosolic and nuclear proteins. Several key steps for synthesis and trafficking have been determined for mitochondrial Fe-S clusters, as well as the cytosol (CIA - cytosolic iron-sulfur protein assembly), but detailed mechanisms of cluster biosynthesis, transport, and exchange are not well established. Genetic mutations and the instability of certain steps in the biosynthesis and maturation of mitochondrial, cytosolic and nuclear Fe-S cluster proteins affects overall cellular iron homeostasis and can lead to severe metabolic, systemic, neurological and hematological diseases, often resulting in fatality. In this review we briefly summarize the current molecular understanding of both mitochondrial ISC and CIA assembly machineries, and present a comprehensive overview of various associated inborn human disease states. PMID- 29019363 TI - Near-infrared light-mediated LA-UCNPs@SiO2-C/HA@mSiO2-DOX@NB nanocomposite for chemotherapy/PDT/PTT and imaging. AB - Currently, incorporating multiple therapeutic functions into one nanoplatform is attracting increasing attention for the development of efficient anticancer agents. Here, a novel core-shell-shell nanoparticle, which was synthesized to integrate imaging and photodynamic therapy (PDT) with photothermal therapy (PTT) and chemotherapy for enhanced antitumor efficiency, consists of upconversion (UC) core (NaYF4:Yb,Tm@NaYF4), Hypocrellin A (HA)/carbon dot (C-Dot) embodied silica sandwich shell, and mesoporous silica outer-shell. A photolabile o-nitrobenzyl derivative linker (NB linker) was prepared as the sensitive "gate" to encapsulate an anticancer drug (doxorubicin hydrochloride, DOX) in the mesopore. Upon 980 nm light irradiation, the UV-emission can induce the bond breaking of the NB linker as well as drug release. The visible emission can stimulate HA to generate singlet oxygen species (ROS); moreover the incorporated C-Dots also can absorb this light to evolve heat. In view of the excess expression of the lactobionic acid (LA) receptor on tumor cells, LA were grafted outside the nanocomposites to insure their specific targeting. The synergistic effect of NIR-triggered chemotherapy with PTT and PDT would be expected to reveal the enhanced cytotoxicity to cancer cells. And the novel UC and C/HA fluorescence also makes the nanocomposites a potential candidate for the imaging-guided multi-therapy. PMID- 29019364 TI - A serving of blueberry (V. corymbosum) acutely improves peripheral arterial dysfunction in young smokers and non-smokers: two randomized, controlled, crossover pilot studies. AB - Several studies have documented the important role of polyphenol-rich foods in the modulation of vascular remodelling and function. This study aimed to evaluate the capacity of a single portion of blueberry (V. corymbosum) to acutely improve peripheral arterial dysfunction in a group of young volunteers. Twenty-four healthy males (12 non-smokers and 12 smokers) were recruited for two different randomized, controlled, crossover pilot acute studies. In the first study, non smokers were exposed to a control treatment (C; 300 mL of water with sugar) and a blueberry treatment (BB; 300 g of blueberry). In the second study, smokers underwent 3 different protocols: (1) - smoking treatment (S); (2) - control treatment (CS; 300 mL of water with sugar + smoking); (3) - blueberry treatment (BS; 300 g of blueberry + smoking). Each treatment (1 day long) was separated by a one week washout period. Blood pressure, peripheral arterial function (reactive hyperemia index, RHI, a marker of endothelial function) and arterial stiffness (digital augmentation index, dAix and dAix normalized by considering a heart rate of 75 bpm, dAix@75) were measured before and after each treatment. In the first study, the consumption of blueberry and control treatment acutely increased peripheral arterial function in the group of non-smokers. The improvement in RHI was higher and significantly different after blueberry treatment compared to the control treatment (54.8 +/- 8.4% BB vs. 28.2 +/- 8.3% C; p = 0.01). No effects were observed for markers of arterial stiffness, blood pressure and heart rate. Acute cigarette smoke significantly increased blood pressure and heart rate, while no significant effect was registered in peripheral arterial function and stiffness. The intake of blueberry and control treatment before a cigarette did not counteract the increase in blood pressure and heart rate, while it significantly improved peripheral arterial function. In particular, a significant increase was observed following BS (35.2 +/- 7.5% RHI; p = 0.02) and CS treatments (34.6 +/- 11.9% RHI; p = 0.02) when compared to only smoking treatment. No difference between BS and CS was detected. In conclusion, the intake of blueberry and control treatments acutely improved peripheral arterial dysfunction both in smoker and in non-smoker subjects. Further studies should be performed to confirm the results obtained and reveal the potential mechanisms of blueberry in the improvement of endothelial function. PMID- 29019365 TI - Blueberry supplementation attenuates oxidative stress within monocytes and modulates immune cell levels in adults with metabolic syndrome: a randomized, double-blind, placebo-controlled trial. AB - BACKGROUND: Blueberries (BB) have been shown to improve insulin sensitivity and endothelial function in obese and pre-diabetic humans, and decrease oxidative stress and inflammation, and ameliorate cardio-renal damage in rodents. This indicates that blueberries have a systemic effect and are not limited to a particular organ system. In order for blueberries to exert beneficial effects on the whole body, the mechanism would logically have to operate through modulation of cellular humoral factors. OBJECTIVE: This study investigated the role of blueberries in modulating immune cell levels and attenuating circulatory and monocyte inflammation and oxidative stress in metabolic syndrome (MetS) subjects. DESIGN: A double-blind, randomized and placebo-controlled study was conducted in adults with MetS, in which they received a blueberry (22.5 g freeze-dried) or placebo smoothie twice daily for six weeks. Free radical production in the whole blood and monocytes, dendritic cell (DC) levels, expression of cytokines in monocytes and serum inflammatory markers were assessed pre- and post intervention. RESULTS: Baseline free radical levels in MetS subjects' samples were not different between groups. Treatment with blueberries markedly decreased superoxide and total reactive oxygen species (ROS) in whole blood and monocytes compared to the placebo (p <= 0.05). The baseline DC numbers in MetS subjects' samples in both groups were not different, however treatment with blueberries significantly increased myeloid DC (p <= 0.05) and had no effect on plasmacytoid cells. Blueberry treatment decreased monocyte gene expression of TNFalpha, IL-6, TLR4 and reduced serum GMCSF in MetS subjects when compared to the placebo treatment (p <= 0.05). CONCLUSIONS: The findings of the current study demonstrate that blueberries exert immunomodulatory effects and attenuate oxidative stress and inflammation in adults with MetS. PMID- 29019366 TI - Moderation of hyperuricemia in rats via consuming walnut protein hydrolysate diet and identification of new antihyperuricemic peptides. AB - In this study, walnut meal hydrolysates (WMH) and dephenolized walnut meal hydrolysates (DWMH) were found to effectively decrease the serum uric acid level and protect the renal function in potassium oxonate-induced hyperuricemic rats in vivo as well as inhibit xanthine oxidase in vitro. Two novel antihyperuricemic peptides including WPPKN (640.8 Da) and ADIYTE (710.7 Da) were purified from DWMH via Sephadex G-15 gel filtration and reverse-phase high-performance liquid chromatography and identified by LC-ESI-MS/MS. These peptides displayed high in vitro xanthine oxidase inhibition (XOI) activity with IC50 values of 17.75 +/- 0.12 mg mL-1 (WPPKN) and 19.01 +/- 0.23 mg mL-1 (ADIYTE). Based on the results of molecular simulation, WPPKN entered into the hydrophobic channel and even obstructed the interaction between xanthine and xanthine oxidase (XO), while ADIYTE was positioned on the surface of the B-chain and blocked the entrance of the substrate to the hydrophobic channel. Therefore, the two peptides are partially responsible for the antihyperuricemic properties of DWMH. PMID- 29019367 TI - One-pot organometallic synthesis of alumina-embedded Pd nanoparticles. AB - Herein we report a one pot organometallic strategy to access alumina-embedded Pd nanoparticles. Unexpectedly, the decomposition of the organometallic complex tris(dibenzylideneacetone)dipalladium(0), Pd2(dba)3, by dihydrogen in the presence of aluminum isopropoxide, Al(iPrO)3, and without extra stabilizers, was found to be an efficient method to generate a Pd colloidal solution. Careful characterization studies revealed that the so-obtained Pd nanoparticles were stabilized by an aluminum isopropoxide tetramer and 1,5-diphenyl-pentan-3-one, which was produced after reduction of the dba ligand from the organometallic precursor. Moreover, calcination of the obtained nanomaterial in air at 773 K for 2 h resulted in a nanocomposite material containing Pd nanoparticles embedded in Al2O3. This stabilization strategy opens new possibilities for the preparation of transition metal nanoparticles embedded in oxides. PMID- 29019368 TI - Quasielastic neutron scattering study of microscopic dynamics in polybutadiene reinforced with an unsaturated carboxylate. AB - We studied the dynamics of zinc diacrylate (ZDA) reinforced polybutadiene rubber (BR) (ZDA/BR) using the quasielastic neutron scattering technique to determine the effect of concentration of ZDA on polymer dynamics. First, we evaluated the temperature dependence of mean square displacements () for ZDA/BR with different ZDA volume fractions. increased with temperature below 170 K, and we observed no significant ZDA volume fraction dependence. However, it increased more steeply above 170 K, and the value of was smaller for the samples with increasing ZDA fraction. To elucidate the origin of the decrease in with increasing ZDA content, dynamic scattering laws (S(Q,omega)) were analyzed. An increase in the elastic component, an increase in the mean relaxation time, and a broadening of distribution of relaxation time were observed with the increasing volume fraction of ZDA. In addition, the ZDA volume fraction dependence of the elastic component roughly corresponded to that of elastic modulus, indicating that the elastic component is related to its mechanical strength. Referring to the previously reported static structure of the present ZDA/BR system, a model for the heterogeneous BR dynamics was proposed. This model assumes the coexistence of immobile, mobile, and interfacial constrained mobile regions. It was found to be appropriate for the explanation of the observed dynamics. We proposed that a network-like structure of the BR having a high crosslinking density around ZDA aggregates is mainly responsible for the high elastic modulus of ZDA/BR. PMID- 29019369 TI - In situ generation of layered single- or double-hydroxide inorganic platelets (LSH and LDH) assisted by bola amphiphiles. AB - A novel preparation route for layered hydroxide based hybrid phases has been investigated combining the polyol route with the in situ generation of inorganic platelets, in the presence of an amphiphilic polymer as well as bola-amphiphiles. The polyol route consists of hydrolysis in an alcoholic medium containing acetate metal cations as precursor(s), to yield an LDH Zn2Al cation composition or LSH-Zn (layered single hydroxide). A bola amphiphile is described as hydrophobic polymer segment-telechelic-chains terminated by two anionic hydrophilic end groups, using volatile ammonium cations as counter ions. The impact of both process conditions as well as the chosen system with regard to the metal hydroxide framework on the morphology of the obtained hybrid phases is scrutinized by X-ray diffraction (XRD), small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM), and compared to that of the corresponding physical mixture. For the ex situ approach, the diffusion of large cumbersome polymers or amphiphilic bolas between the inorganic platelets was found to be efficient, mostly driven by an anion exchange reaction between interleaved acetate anions and carboxylate functions of the molecular backbones, and keeping intact the inner sheet integrity through a topotactic process. In particular with LSH-Zn, a multi stratified assembly has been observed combining an acetate pristine structure and a partly bola diffused structure, leading to a biphasic structure, aggregated and intercalated. To the best of our knowledge, observation of LSH-Zn single platelets has never been reported, making the combined process polyol/in situ an interesting new route to reach exfoliation. Indeed, it leads to the generation of either LSH or LDH platelets of lateral size ranging from 10 up to 200 nm. However, the platelets were found to be porous; it is considered as a drawback for barrier properties. It is our belief that such porosity may open new insights in "tectonic" architecture by intertwining 2D and 1D-type fillers. Rather counterintuitively, the ex situ approach based on a topotactic exchange reaction matches the in situ templating reaction in many cases as a function of the dispersion state regardless of the polymer or bolas as well as the platelet cation composition. PMID- 29019371 TI - MicroRNA-590-5p regulates cell viability, apoptosis, migration and invasion of renal cell carcinoma cell lines through targeting ARHGAP24. AB - Renal cell carcinoma (RCC) is the leading cause of death in renal malignancies. MicroRNA-590-5p (miR-590-5p) is of great importance in the processes of many cancers regarding regulation of cancer cell invasion and proliferation. In our study, alternation of miR-590-5p expression in RCC cell lines through transfection with pre-miR-590-5p (up-regulation) or anti-miR-590-5p (down regulation) was performed. Apoptosis and viability of RCC cell lines were measured by flow cytometry and CCK-8 analysis, respectively. Cell invasion and migration were estimated by Transwell assay. The association of miR-590-5p with ARHGAP24 expression was evaluated using luciferase assays, real-time PCR and western blot assay. The expressions of apoptosis and migration-related protein were also measured by western blotting. We found that pre-miR-590-5p transfection in Caki-2 and 786-O cells showed significant increases in cell viability, invasion and migration, which were accompanied by decreased cell apoptosis, while anti-miR-590-5p transfection obviously inhibited the cell viability, migration and invasion of Caki-2 and 786-O cells as well as induced apoptosis, compared with the negative control group. Furthermore, bioinformatics combined with luciferase reporter assays indicated that ARHGAP24 is directly targeted by miR 590-5p. ARHGAP24 overexpression in 786-O and Caki-2 cells phenocopied the effects of anti-miR-590-5p transfection along with enhanced expression of active Caspase 3 and Bax/Bcl-2 ratio as well as decreased expression of MMP-2 and MMP-9. These findings suggested that miR-590-5p/ARHGAP24 seems to function as a potentially beneficial target for RCC treatment. PMID- 29019376 TI - Thyroid Hormone Therapy for Older Adults with Subclinical Hypothyroidism. PMID- 29019370 TI - Evaluation and optimization of reduction and alkylation methods to maximize peptide identification with MS-based proteomics. AB - Mass spectrometry (MS) has become an increasingly important technique to analyze proteins. In popular bottom-up MS-based proteomics, reduction and alkylation are routine steps to facilitate peptide identification. However, incomplete reactions and side reactions may occur, which compromise the experimental results. In this work, we systematically evaluated the reduction step with commonly used reagents, i.e., dithiothreitol, 2-mercaptoethanol, tris(2-carboxyethyl)phosphine, or tris(3 hydroxypropyl)phosphine, and alkylation with iodoacetamide, acrylamide, N ethylmaleimide, or 4-vinylpyridine. By using digested peptides from a yeast whole cell lysate, the number of proteins and peptides identified were very similar using four different reducing reagents. The results from four alkylating reagents, however, were dramatically different with iodoacetamide giving the highest number of peptides with alkylated cysteine and the lowest number of peptides with incomplete cysteine alkylation and side reactions. Alkylation conditions with iodoacetamide were further optimized. To identify more peptides with cysteine, thiopropyl-sepharose 6B resins were used to enrich them, and the optimal conditions were employed for the reduction and alkylation. The enrichment resulted in over three times more cysteine-containing peptides than without enrichment. Systematic evaluation of the reduction and alkylation with different reagents can aid in a better design of bottom-up proteomic experiments. PMID- 29019377 TI - Thyroid Hormone Therapy for Older Adults with Subclinical Hypothyroidism. PMID- 29019378 TI - Thyroid Hormone Therapy for Older Adults with Subclinical Hypothyroidism. PMID- 29019379 TI - Special Smiles: Sports Dentistry and the Special Needs Athlete. AB - There is a need to expand dental services to underserved populations, such as athletes with intellectual and developmental disabilities. This review introduces dentists to this need by sharing the direction taken by the Special Smiles program of Special Olympics and addressing the need to educate special needs athletes on prevention and care of sports-related mouth injuries. PMID- 29019380 TI - Save Our Smiles. PMID- 29019381 TI - My Interest in Sports Dentistry. PMID- 29019382 TI - Beyond the Mouthguard: Sports Dentistry's Role in Nutrition, Prevention and Social Advocacy. PMID- 29019383 TI - The Dentist and the Athletic Trainer: A Winning Team for Oral Health Care. AB - Oral health is a key concern for student athletes. The dentist is the primary oral health care provider. Athletic trainers (ATs) are health professionals who have a primary care role for the student athlete. They are often the first to respond when dental trauma occurs in athletics. This paper informs dentists and ATs about each other and includes best practice in the care of athletes, which can be improved through interprofessional collaboration between dentists and ATs. PMID- 29019384 TI - Sports Dentistry: A Different Perspective PMID- 29019385 TI - Keeping Politics Out of the Dental Office. PMID- 29019386 TI - Antimicrobial Peptide-Polymer Conjugates with High Activity: Influence of Polymer Molecular Weight and Peptide Sequence on Antimicrobial Activity, Proteolysis, and Biocompatibility. AB - We report the synthesis, characterization, activity, and biocompatibility of a novel series of antimicrobial peptide-polymer conjugates. Using parent peptide aurein 2.2, we designed a peptide array (~100 peptides) with single and multiple W and R mutations and identified antimicrobial peptides (AMPs) with potent activity against Staphylococcus aureus (S. aureus). These novel AMPs were conjugated to hyperbranched polyglycerols (HPGs) of different molecular weights and number of peptides to improve their antimicrobial activity and toxicity. The cell and blood compatibility studies of these conjugates demonstrated better properties than those of the AMP alone. However, conjugates showed lower antimicrobial activity in comparison to that of peptides, as determined from minimal inhibition concentrations (MICs) against S. aureus, but considerably better than that of the available polymer-AMP conjugates in the literature. In addition to measuring MICs and characterizing the biocompatibility, circular dichroism spectroscopy was used to investigate the interaction of the novel conjugates with model bacterial biomembranes. Moreover, the novel conjugates were exposed to trypsin to evaluate their stability. It was found that the conjugates resist proteolysis in comparison with unprotected peptides. The peptide conjugates were active in serum and whole blood. Overall, the results show that combining a highly active AMP and low-molecular-weight HPG yields bioconjugates with excellent biocompatibility, MICs below 100 MUg/mL, and proteolytic stability, which could potentially improve its utility for in vivo applications. PMID- 29019387 TI - Surfing Silicon Nanofacets for Cold Cathode Electron Emission Sites. AB - Point sources exhibit low threshold electron emission due to local field enhancement at the tip. In the case of silicon, however, the realization of tip emitters has been hampered by unwanted oxidation, limiting the number of emission sites and the overall current. In contrast to this, here, we report the fascinating low threshold (~0.67 V MUm-1) cold cathode electron emission from silicon nanofacets (Si-NFs). The ensembles of nanofacets fabricated at different time scales, under low energy ion impacts, yield tunable field emission with a Fowler-Nordheim tunneling field in the range of 0.67-4.75 V MUm-1. The local probe surface microscopy-based tunneling current mapping in conjunction with Kelvin probe force microscopy measurements revealed that the valleys and a part of the sidewalls of the nanofacets contribute more to the field emission process. The observed lowest turn-on field is attributed to the absence of native oxide on the sidewalls of the smallest facets as well as their lowest work function. In addition, first-principle density functional theory-based simulation revealed a crystal orientation-dependent work function of Si, which corroborates well with our experimental observations. The present study demonstrates a novel way to address the origin of the cold cathode electron emission sites from Si-NFs fabricated at room temperature. In principle, the present methodology can be extended to probe the cold cathode electron emission sites from any nanostructured material. PMID- 29019388 TI - Fe3S4 Nanoparticles Wrapped in an rGO Matrix for Promising Energy Storage: Outstanding Cyclic and Rate Performance. AB - Iron sulfides/oxides/fluorides have been profoundly investigated as electrodes for rechargeable batteries recently in view of their high-theory capacities, low cost, and environmentally benign nature. Here, Fe3S4 nanoparticles (NPs) wrapped in reduced graphene oxide (Fe3S4 NPs@rGO) have been obtained using a simple one pot hydrothermal approach, which is characterized using various techniques. As the anode for Li-ion batteries, Fe3S4 NPs@rGO displays a reversible discharge capacity of 950 mA h/g after 100 cycles at 0.1 A/g, and 720 mA h/g capacity can be achieved after 800 cycles even at 1 A/g. Even at 10 A/g, 462 mA h/g capacity can be maintained. The excellent electrochemical properties for Fe3S4 NPs@rGO can be ascribed to a collaborative effect between Fe3S4 NPs and an rGO matrix, which possess high Li-ion storage ability and excellent conductivity, respectively. PMID- 29019389 TI - Intracellular Protein Delivery System Using a Target-Specific Repebody and Translocation Domain of Bacterial Exotoxin. AB - With the high efficacy of protein-based therapeutics and plenty of intracellular drug targets, cytosolic protein delivery in a cell-specific manner has attracted considerable attention in the field of precision medicine. Herein, we present an intracellular protein delivery system based on a target-specific repebody and the translocation domain of Pseudomonas aeruginosa exotoxin A. The delivery platform was constructed by genetically fusing an EGFR-specific repebody as a targeting moiety to the translocation domain, while a protein cargo was fused to the C terminal end of the delivery platform. The delivery platform was revealed to efficiently translocate a protein cargo to the cytosol in a target-specific manner. We demonstrate the utility and potential of the delivery platform by showing a remarkable tumor regression with negligible toxicity in a xenograft mice model when gelonin was used as the cytotoxic protein cargo. The present platform can find wide applications to the cell-selective cytosolic delivery of diverse proteins in many areas. PMID- 29019390 TI - Correction to "Pressure-Sensitive and Conductive Carbon Aerogels from Poplars Catkins for Selective Oil Absorption and Oil/Water Separation". PMID- 29019392 TI - One-Step Synthesis of Rox-DNA Functionalized CdZnTeS Quantum Dots for the Visual Detection of Hydrogen Peroxide and Blood Glucose. AB - As the blood glucose concentration is an important clinical parameter of diabetes, the rapid and effective detection of blood glucose is very significant for monitoring and managing diabetes. Here, a facile method to prepare Rox-DNA functionalized CdZnTeS quantum dots (QDs) was developed. The Rox-DNA functionalized CdZnTeS QDs were prepared by a one-pot hydrothermal method through phosphorothioate DNA bound to QDs, which were employed as a ratiometric fluorescent probe for the rapid and sensitive detection of H2O2 and glucose. Compared with the traditional multistep construction of ratiometric fluorescent probes, this presented approach is simpler and more effective without chemical modification and complicated separation. The CdZnTeS QDs with green fluorescence is specifically sensitive to H2O2, while the red fluorescence of Rox is invariable. H2O2 is the product from the oxidation of glucose catalyzed by glucose oxidase (GOx). Therefore, a facile method to detect H2O2 and glucose with a detection limit of 0.075 MUM for H2O2 and 0.042 MUM for glucose was developed. In addition, this proposed probe has been employed for the detection of glucose in human serum with a satisfactory result. Moreover, this probe has been used for visual detection, and the health and diabetics can be distinguished by the naked eye. Meanwhile, this nanoprobe is also generalizable and can be extended to the detection of many other H2O2-mediated analytes. PMID- 29019391 TI - Fibrous Nanozyme Dressings with Catalase-Like Activity for H2O2 Reduction To Promote Wound Healing. AB - The concentrations of the redox pair hydrogen peroxide (H2O2) and oxygen (O2) can promote or decelerate the progression and duration of the wound healing process. Although H2O2 can reach critically high concentrations and prohibit healing, a sufficient O2 inflow to the wound is commonly desired. Herein, we describe the fabrication and use of a membrane that can contemptuously decrease H2O2 and increase O2 levels. Therefore, hematite nanozyme particles were integrated into electrospun and cross-linked poly(vinyl alcohol) membranes. Within the dual compound membrane, the polymeric mesh provides a porous scaffold with high water permeability and the nanozymes act as a catalyst with catalase-like activity that can efficiently convert H2O2 into O2, as shown by a catalase assay. When comparing the growth of fibroblasts at an H2O2 concentration of 50 MUM, the growth was largely enhanced when applying the nanozyme dressing. Thus, application of the nanozyme dressing can significantly reduce the harmful effect of higher H2O2 concentrations. The described catalytic membranes could be used in the future to provide an improved environment for cell proliferation in wounds and thus applied as advanced wound healing dressings. PMID- 29019393 TI - Tough, Stretchable, Compressive Novel Polymer/Graphene Oxide Nanocomposite Hydrogels with Excellent Self-Healing Performance. AB - Designing hydrogels with high mechanical properties without sacrificing their self-healing efficiencies remains great challenges. We have fabricated cationic polyacrylamide/graphene oxide (GO) hydrogels by free-radical polymerization of acrylamide (AM) and 2-(dimethylamino)ethylacrylatemethochloride (DAC) in the presence of GO. The mechanical properties and self-healing ability can be tuned by the GO content and the mass ratio of AM and DAC. The ionic bonds between DAC and GO and the hydrogen bonds between AM and GO can efficiently dissipate energy and rebuild the networks. The resulting composite hydrogels possess high stiffness (Young's modulus: ~1.1 MPa), high toughness (~9.3 MJ m-3), and high fatigue resistance, as well as high self-healing efficiency (>92% of tensile strength, >99% of tensile strain and >93% of toughness). In addition, the completely dried hydrogels can recover their original mechanical values by spraying water and still possess outstanding self-healing efficiency. Our design can provide better fundamental understanding of physical properties of hydrogels and should enable the development of tough, self-healing hydrogels for practical applications. PMID- 29019394 TI - Studies on 16,17-Pyrazoline Substituted Heterosteroids as Anti-Alzheimer and Anti Parkinsonian Agents Using LPS Induced Neuroinflammation Models of Mice and Rats. AB - Alzheimer's disease (AD) and Parkinson's disease (PD) are the most common forms of neurodegenerative disorders. Dehydroepiandrosterone (DHEA) has been reported as a neuroprotective steroid useful in the therapeutic management of neurodegenerative disorders such as AD and PD. Herein we report the synthesis and evaluation of a new series of 16,17-pyrazolinyl DHEA analogues 2-4a-d as neuroprotective agents using LPS-induced neuroinflammation animal models. Treatment with the pyrazoline substituted steroids considerably improved the LPS induced learning, memory and movement deficits in animal models. Suppression of biochemical parameters of oxidative and nitrosative stress, acetylcholinesterase activity, and TNF-alpha levels was also observed. 16,17-Pyrazolinyl steroids 2c 4c substituted with a 4-pyridyl moiety at the 5-position of the heterocyclic ring were found to be the most potent agents and produced neuroprotective effects better than standard drugs celecoxib and dexamethasone. Of these pyrazoline substituted steroids, the N-acetyl analogue 3c displayed neuroprotective effects better than N-phenyl (4c), which in turn showed potency more than N-unsubstituted analogue 2c. PMID- 29019395 TI - Selenization of Cu2ZnSnS4 Enhanced the Performance of Dye-Sensitized Solar Cells: Improved Zinc-Site Catalytic Activity for I3. AB - Cu2ZnSnS4 (CZTS) and Cu2ZnSn(S,Se)4 (CZTSSe) as promising photovoltaic materials have drawn much attention because they are environmentally benign and earth abundant elements. In this work, the monodispersed, low-cost Cu2ZnSnS4 nanocrystals with small size have been controllably synthesized via a wet chemical routine. And CZTSSe could be easily prepared after selenization of CZTS. When they are employed as counter electrodes (CEs) for dye-sensitized solar cells (DSSCs), the power conversion efficiency (PCE) has been improved from 3.54% to 7.13% as CZTS is converted to CZTSSe, which is also compared to that of Pt (7.62%). The exact reason for the enhanced catalytic activity of I3- is discussed with the work function and density functional theory (DFT) when CZTSSe converted from CZTS. The results of a Kelvin probe suggest that the work function of CZTSSe (5.61 eV) is closer to that of Pt (5.65 eV) and higher than that of CZTS, which matched the redox shuttle potential better. According to the theory calculation, all the atomic and bond populations changed significantly when Se replaced partly the S on the CZTS system, especially in the Zn site. During the catalytic process as CEs, the adsorption energy obviously increased compared to those at other sites when I3- adsorbed on the Zn site in CZTSSe. So, Zn plays an important role for the reduction of I3- after CZTS is converted to CZTSSe. Based on above analysis, the reason for enhanced performance of DSSCs when CZTS converted to CZTSSe is mainly due to the enhancement of Zn-site activity. This work is beneficial for understanding the catalytic reaction mechanism of CZTS(Se) as CEs of DSSCs. PMID- 29019397 TI - The Interface Structure of FeSe Thin Film on CaF2 Substrate and its Influence on the Superconducting Performance. AB - The investigations into the interfaces in iron selenide (FeSe) thin films on various substrates have manifested the great potential of showing high temperature-superconductivity in this unique system. In present work, we obtain FeSe thin films with a series of thicknesses on calcium fluoride (CaF2) (100) substrates and glean the detailed information from the FeSe/CaF2 interface by using scanning transmission electron microscopy (STEM). Intriguingly, we have found the universal existence of a calcium selenide (CaSe) interlayer with a thickness of approximate 3 nm between FeSe and CaF2 in all the samples, which is irrelevant to the thickness of FeSe layers. A slight Se deficiency occurs in the FeSe layer due to the formation of CaSe interlayer. This Se deficiency is generally negligible except for the case of the ultrathin FeSe film (8 nm in thickness), in which the stoichiometric deviation from FeSe is big enough to suppress the superconductivity. Meanwhile, in the overly thick FeSe layer (160 nm in thickness), vast precipitates are found and recognized as Fe-rich phases, which brings about degradation in superconductivity. Consequently, the thickness dependence of superconducting transition temperature (Tc) of FeSe thin films is investigated and one of our atmosphere-stable FeSe thin film (127 nm) possesses the highest Tconset/Tczero as 15.1 K/13.4 K on record to date in the class of FeSe thin film with practical thickness. Our results provide a new perspective for exploring the mechanism of superconductivity in FeSe thin film via high resolution STEM. Moreover, approaches that might improve the quality of FeSe/CaF2 interfaces are also proposed for further enhancing the superconducting performance in this system. PMID- 29019396 TI - The Promise and Challenge of In Vivo Delivery for Genome Therapeutics. AB - CRISPR-based genome editing technologies are poised to enable countless new therapies to prevent, treat, or cure diseases with a genetic basis. However, the safe and effective delivery of genome editing enzymes represents a substantial challenge that must be tackled to enable the next generation of genetic therapies. In this Review, we summarize recent progress in developing enzymatic tools to combat genetic disease and examine current efforts to deliver these enzymes to the cells in need of correction. Viral vectors already in use for traditional gene therapy are being applied to enable in vivo CRISPR-based therapeutics, as are emerging technologies such as nanoparticle-based delivery of CRISPR components and direct delivery of preassembled RNA-protein complexes. Success in these areas will allow CRISPR-based genome editing therapeutics to reach their full potential. PMID- 29019399 TI - Ingestion of Microplastics by Freshwater Tubifex Worms. AB - Microplastic contamination of the aquatic environment is a global issue. Microplastics can be ingested by organisms leading to negative physiological impacts. The ingestion of microplastics by freshwater invertebrates has not been reported outside the laboratory. Here we demonstrate the ingestion of microplastic particles by Tubifex tubifex from bottom sediments in a major urban waterbody fed by the River Irwell, Manchester, UK. The host sediments had microplastic concentrations ranging from 56 to 2543 particles kg-1. 87% of the Tubifex-ingested microplastic particles were microfibers (55-4100 MUm in length), while the remaining 13% were microplastic fragments (50-4500 MUm in length). FT IR analysis revealed ingestion of a range of polymers, including polyester and acrylic fibers. While microbeads were present in the host sediment matrix, they were not detected in Tubifex worm tissue. The mean concentration of ingested microplastics was 129 +/- 65.4 particles g-1 tissue. We also show that Tubifex worms retain microplastics for longer than they retain other particulate components of the ingested sediment matrix. Microplastic ingestion by Tubifex worms poses a significant risk for trophic transfer and biomagnification of microplastics up the aquatic food chain. PMID- 29019398 TI - Exploration of a Variety of Copper Molybdate Coordination Hybrids Based on a Flexible Bis(1,2,4-triazole) Ligand: A Look through the Composition-Space Diagram. AB - We investigated the coordination ability of the bis(1,2,4-triazolyl) module, tr2pr = 1,3-bis(1,2,4-triazol-4-yl)propane, toward the engineering of solid-state structures of copper polyoxomolybdates utilizing a composition space diagram approach. Different binding modes of the ligand including [N-N]-bridging and N terminal coordination and the existence of favorable conformation forms (anti/anti, gauche/anti, and gauche/gauche) resulted in varieties of mixed metal CuI/MoVI and CuII/MoVI coordination polymers prepared under hydrothermal conditions. The composition space analysis employed was aimed at both the development of new coordination solids and their crystallization fields through systematic changes of the reagent ratios [copper(II) and molybdenum(VI) oxide precursors and the tr2pr ligand]. Nine coordination compounds were synthesized and structurally characterized. The diverse coordination architectures of the compounds are composed of cationic fragments such as [CuII3(MU2-OH)2(MU2-tr)2]4+, [CuII3(MU2-tr)6]6+, [CuII2(MU2-tr)3]4+, etc., connected to polymeric arrays by anionic species (molybdate MoO42-, isomeric alpha-, delta-, and beta octamolybdates {Mo8O26}4- or {Mo8O28H2}6-). The inorganic copper(I,II)/molybdenum(VI) oxide matrix itself forms discrete or low-dimensional subtopological motifs (0D, 1D, or 2D), while the organic spacers interconnect them into higher-dimensional networks. The 3D coordination hybrids show moderate thermal stability up to 230-250 degrees C, while for the 2D compounds, the stability of the framework is distinctly lower (~190 degrees C). The magnetic properties of the most representative samples were investigated. The magnetic interactions were rationalized in terms of analyzing the planes of the magnetic orbitals. PMID- 29019400 TI - Graphene Nanoplatelet-Polymer Chemiresistive Sensor Arrays for the Detection and Discrimination of Chemical Warfare Agent Simulants. AB - A cross-reactive array of semiselective chemiresistive sensors made of polymer graphene nanoplatelet (GNP) composite coated electrodes was examined for detection and discrimination of chemical warfare agents (CWA). The arrays employ a set of chemically diverse polymers to generate a unique response signature for multiple CWA simulants and background interferents. The developed sensors' signal remains consistent after repeated exposures to multiple analytes for up to 5 days with a similar signal magnitude across different replicate sensors with the same polymer-GNP coating. An array of 12 sensors each coated with a different polymer GNP mixture was exposed 100 times to a cycle of single analyte vapors consisting of 5 chemically similar CWA simulants and 8 common background interferents. The collected data was vector normalized to reduce concentration dependency, z-scored to account for baseline drift and signal-to-noise ratio, and Kalman filtered to reduce noise. The processed data was dimensionally reduced with principal component analysis and analyzed with four different machine learning algorithms to evaluate discrimination capabilities. For 5 similarly structured CWA simulants alone 100% classification accuracy was achieved. For all analytes tested 99% classification accuracy was achieved demonstrating the CWA discrimination capabilities of the developed system. The novel sensor fabrication methods and data processing techniques are attractive for development of sensor platforms for discrimination of CWA and other classes of chemical vapors. PMID- 29019401 TI - N,N'-Disubstituted Indigos as Readily Available Red-Light Photoswitches with Tunable Thermal Half-Lives. AB - Some rare indigo derivatives have been known for a long time to be photochromic upon irradiation with red light, which should be advantageous for many applications. However, the absence of strategies to tune their thermal half-lives by modular molecular design as well as the lack of proper synthetic methods to prepare a variety of such molecules from the parent indigo dye have so far precluded their use. In this work, several synthetic protocols for N functionalization have been developed, and a variety of N-alkyl and N-aryl indigo derivatives have been prepared. By installation of electron-withdrawing substituents on the N-aryl moieties, the thermal stability of the Z-isomers could be enhanced while maintaining the advantageous photoswitching properties upon irradiation with red light (660 nm LED). Both experimental data and computational results suggest that the ability to tune thermal stability without affecting the dyes' absorption maxima originates from the twisted geometry of the N-aryl groups. The new indigo photoswitches reported are expected to have a large impact on the development of optical methods and applications in both life and material sciences. PMID- 29019402 TI - A Systematic Analysis of the Binding Affinity between the Pim-1 Kinase and Its Inhibitors Based on the MM/3D-RISM/KH Method. AB - A systematic study of the binding affinities of 16 lead compounds targeting the Pim-1 kinase based on the 3D-RISM/KH theory and MD simulations is reported. The results show a correlation coefficient R = 0.69 between the theoretical and experimental values of the binding free energy. This demonstrates that the method is applicable to the problem of compound screening and lead optimization, for which relative values of the free energy among the compounds have significance. We elucidate the contribution of the ligand fragments to the binding free energy. Our results indicate that the interactions between the residues and the triazolo[4,3-b]pyridazine scaffold as well as the phenyl ring of the ligand molecule make significant contributions to stabilization of the complex. Using the 3D-RISM/KH theory, we further analyze the probability distribution of a ligand fragment around the protein-ligand complex in which the substituent around the phenyl ring is removed from the ligand. The results demonstrate that the 3D RISM/KH theory is capable of predicting the position of substitution on a ligand that has a higher affinity to a target protein. PMID- 29019403 TI - Tertiary Interactions in the Unbound Guanine-Sensing Riboswitch Focus Functional Conformational Variability on the Binding Site. AB - Riboswitches are genetic regulatory elements mainly found in bacteria, which regulate gene expression based on the availability of a ligand. Purine-sensing riboswitches, including the guanine-sensing riboswitch (Gsw), possess tertiary interactions connecting the L2 and L3 loops. These interactions are important for ligand binding to the aptamer. However, atomic-level structural knowledge about the unbound state and how the tertiary interactions influence the conformational heterogeneity of the aptamer is still scarce. We performed replica exchange molecular dynamics simulations of the aptamer domain of wild-type Gsw and a G37A/C61U mutant, which exhibits destabilized tertiary interactions, at different Mg2+ concentrations with an aggregate simulation time of ~16 MUs, and subsequently obtained free-energy landscapes. Our data provide evidence that suggests that the unbound state of wild-type Gsw is conformationally rather homogeneous from a global viewpoint, yet the ligand binding site shows functionally necessary mobility required for ligand binding. For the mutant, the data suggest a heterogeneous ensemble, in particular without Mg2+. Hence, the tertiary interactions focus functional conformational variability on the binding site region of wild-type Gsw. Our data allow speculating that already the weakening of the tertiary interactions by two hydrogen bonds shifts the kinetics of folding from downhill folding without traps or intermediate states for wild type Gsw to a folding including intermediates and misfolded structures for the mutant. A slowed-down folding of the aptamer might favor a decision during transcriptional regulation for the off-path, even if the ligand binds. PMID- 29019404 TI - Unexpected Competition between Antiferromagnetic and Ferromagnetic States in Hf2MnRu5B2: Predicted and Realized. AB - Materials "design" is increasingly gaining importance in the solid-state materials community in general and in the field of magnetic materials in particular. Density functional theory (DFT) predicted the competition between ferromagnetic (FM) and antiferromagnetic (AFM) ground states in a ruthenium-rich Ti3Co5B2-type boride (Hf2MnRu5B2) for the first time. Vienna ab initio simulation package (VASP) total energy calculations indicated that the FM model was marginally more stable than one of the AFM models (AFM1), indicating very weak interactions between magnetic 1D Mn chains that can be easily perturbated by external means (magnetic field or composition). The predicted phase was then synthesized by arc-melting and characterized as Hf2Mn1-xRu5+xB2 (x = 0.27). Vibrating-scanning magnetometry shows an AFM ground state with TN ~ 20 K under low magnetic field (0.005 T). At moderate-to-higher fields, AFM ordering vanishes while FM ordering emerges with a Curie temperature of 115 K. These experimental outcomes confirm the weak nature of the interchain interactions, as predicted by DFT calculations. PMID- 29019405 TI - Chemical Constituents of Bryophytes: Structures and Biological Activity. AB - Comparatively little attention has been paid to the bryophytes for use in the human diet or medicine in spite of the presence of 23 000 species globally. Several hundred new compounds have been isolated from the liverworts (Marchantiophyta), and more than 40 new carbon skeletons of terpenoids and aromatic compounds were found. Most of the liverworts studied elaborate characteristic odiferous, pungent, and bitter-tasting compounds, of which many show antimicrobial, antifungal, antiviral, allergic contact dermatitis, cytotoxic, insecticidal, anti-HIV, plant growth regulatory, neurotrophic, NO production and superoxide anion radical release inhibitory, muscle relaxing, antiobesity, piscicidal, and nematocidal activities. The biological effects ascribed to the liverworts are mainly due to lipophilic sesqui- and diterpenoids, phenolic compounds, and polyketides, which are the principal constituents of their oil bodies. Some mosses and liverworts produce significant levels of vitamin B2 and tocopherols, as well as prostaglandin-like highly unsaturated fatty acids. The most characteristic chemical phenomenon of the liverworts is that most of the sesqui- and diterpenoids are enantiomers of those found in higher plants. In this review, the chemical constituents and potential medicinal uses of bryophytes are discussed. PMID- 29019406 TI - Discovery of the High-Pressure Phase of Ba3W2O9 and Determination of Its Crystal Structure. AB - A new polymorphism of Ba3W2O9 is discovered with the use of a high-pressure synthesis technique and its crystal structure is determined by single-crystal X ray diffraction and transmission electron microscopy. The crystal structure was isostructural with that of Ba3Re2O9, having a hexagonal unit cell of R3m symmetry with a = 0.574060(10) nm and c = 2.08256(4) nm. The high-pressure (HP) phase is obtained from a transformation of an ambient-pressure (AP) phase of the compound, which has the Cs3Tl2Cl9-type structure. The most notable change in the transformation is the connection of WO6 octahedra. The HP phase has corner sharing octahedra, which form a bilayer structure, while the AP phase has face sharing octahedra of isolated [W2O9] dimers. This type of the structural phase transition is unreported although it is possibly that a sequence of high-pressure structural transformations occurs for similar chemical compositions. The HP phase has W ions in WO6 octahedra with an unusual off-center displacement; although the displacement is slightly relaxed compared with that of the AP phase. The off center displacement suggests strong hybridization between the W 5d orbitals and O 2p orbitals. PMID- 29019407 TI - A Combined Experimental and Theoretical Study on the Circular Dichroism of Staggered and Eclipsed Forms of Dimethoxy[2.2]-, [3.2]-, and [3.3]Pyridinophanes and Their Protonated Forms. AB - The circular dichroisms (CDs) of dimethoxy[2.2]-, [3.2]-, and [3.3]pyridinophanes and their protonated forms were investigated experimentally and theoretically. Characteristic multisignate Cotton effects (CEs), typical for planar chiral cyclophane derivatives, were observed. The CD spectral pattern was quite comparable for the staggered forms of [2.2]-, [3.2]-, and [3.3]cyclophanes, but significantly differed for the eclipsed forms. More interestingly, the patterns resembled, but the CE signs were practically opposite between staggered and eclipsed [2.2]pyridinophanes. Upon protonation, the signs of most CEs were inverted in both forms of cyclophanes, due to the reversal of dipole moment in the pyridine against the pyridinium moiety. Such a change in CD spectrum upon protonation was not apparent in [3.2]pyridinophane, and the CD spectral behavior was more complex in [3.3]pyridinophanes. The variation of CD caused by the protonation/deprotonation process was temperature-dependent and hence utilized as a thermal sensor. The protonated forms of the homologous pyridinophanes with different tether lengths in staggered and eclipsed forms served as a model system for systematically studying the cation-pi interaction and its effects on chiroptical properties. A steady increase of electronic interaction became apparent for the smaller-sized cyclophanes from the increased excitation energy and electronic coupling element of the charge-transfer (CT) band, while the observed CE at the CT band was a more complex function of the original transition dipole of donor/acceptor pair and linker atoms, as well as the strength of the electronic interaction. PMID- 29019408 TI - Cleaving Off Uranyl Oxygens through Chelation: A Mechanistic Study in the Gas Phase. AB - Recent efforts to activate the strong uranium-oxygen bonds in the dioxo uranyl cation have been limited to single oxo-group activation through either uranyl reduction and functionalization in solution, or by collision induced dissociation (CID) in the gas-phase, using mass spectrometry (MS). Here, we report and investigate the surprising double activation of uranyl by an organic ligand, 3,4,3-LI(CAM), leading to the formation of a formal U6+ chelate in the gas-phase. The cleavage of both uranyl oxo bonds was experimentally evidenced by CID, using deuterium and 18O isotopic substitutions, and by infrared multiple photon dissociation (IRMPD) spectroscopy. Density functional theory (DFT) computations predict that the overall reaction requires only 132 kJ/mol, with the first oxygen activation entailing about 107 kJ/mol. Combined with analysis of similar, but unreactive ligands, these results shed light on the chelation-driven mechanism of uranyl oxo bond cleavage, demonstrating its dependence on the presence of ligand hydroxyl protons available for direct interactions with the uranyl oxygens. PMID- 29019409 TI - Genome Mining and Activation of a Silent PKS/NRPS Gene Cluster Direct the Production of Totopotensamides. AB - A 92 kb silent hybrid polyketide and nonribosomal peptide gene cluster in marine derived Streptomyces pactum SCSIO 02999 was activated by genetically manipulating the regulatory genes, including the knockout of two negative regulators (totR5 and totR3) and overexpression of a positive regulator totR1, to direct the production of the known totopotensamides (TPMs) A (1) and B (3) and a novel sulfonate-containing analogue TPM C (2). Inactivation of totG led to accumulation of TPM B (3) lacking the glycosyl moiety, which indicated TotG as a dedicated glycosyltransferase in the biosynthesis of 1 and 2. PMID- 29019410 TI - Calix[n]triazoles and Related Conformational Studies. AB - Calix[n]triazoles are developed as new derivatives in the calixarene family. Calixtriazole compounds 2-4 are synthesized using an iterative convergent strategy including an inter-/intramolecular copper(I)-catalyzed azide-alkyne cycloaddition reaction. Solid-state structures are clearly refined to give 1,2 alternate and partial cone conformations for calix[4]triazole and calix[5]triazole, respectively. Theoretical studies based on density functional theory (DFT) calculations indicated that intermolecular interactions are crucial in determining the conformers of the crystals, and the most stable conformers of calix[4]triazole, calix[5]triazole, and calix[6]triazole in the monomeric forms are 1,3-alternate, 1,3-alternate, and 1,3,5-alternate, respectively. PMID- 29019411 TI - Aromatic Hybrid Foldamer with a Hydrophilic Helical Cavity Capable of Encapsulating Glucose. AB - An indolocarbazole-naphthyridine hybrid oligomer capable of adopting a stable helical conformation was prepared, and its folding properties were thoroughly studied in the solid state and in solution. As a result of folding, a hydrophilic cavity was generated inside the helix wherein monosaccharides were able to be encapsulated in the order of glucose (9.6 * 104 M-1) > galactose (1.0 * 104 M-1) ? mannose (~0) in 10% (v/v) DMSO/CH2Cl2. PMID- 29019412 TI - Associations between HIV-related stigma, self-esteem, social support, and depressive symptoms in Namibia. AB - OBJECTIVE: The current study sought to investigate the association between HIV related stigma, self-esteem, social support, and depression of people living with HIV and AIDS (PLWHA) in Namibia. METHOD: Purposive sampling was used to recruit a total of 124 men and women living with HIV/AIDS in the Katima Mulilo region of northern Namibia. A cross-sectional survey was used to collect information on demographics, self-esteem, social support, HIV-related stigma, and depression. RESULTS: Correlation analysis revealed that HIV-related stigma, self-esteem, and social support were all significantly correlated with depression. Further, Ordinary Least Squares (OLS) regression analysis indicated that HIV-related stigma was the largest risk factor and self-esteem was the largest protective factor with respect to depressive symptoms. DISCUSSION: Findings indicated the necessity of appropriate assessment and intervention for psychosocial distress among PLWHA. Helping professionals should design evidence-based interventions that address individual and societal challenges that impact people living with HIV and AIDS. PMID- 29019413 TI - Instrumentation for Testing Whether the Icy Moons of the Gas and Ice Giants Are Inhabited. AB - Evidence of life beyond Earth may be closer than we think, given that the forthcoming missions to the jovian system will be equipped with instruments capable of probing Europa's icy surface for possible biosignatures, including chemical biomarkers, despite the strong radiation environment. Geochemical biomarkers may also exist beyond Europa on icy moons of the gas giants. Sulfur is proposed as a reliable geochemical biomarker for approved and forthcoming missions to the outer solar system. Key Words: JUICE mission-Clipper mission Geochemical biomarkers-Europa-Moons of the ice giants-Geochemistry-Mass spectrometry. Astrobiology 17, 958-961. PMID- 29019415 TI - Pain characteristics of older persons with medically unexplained symptoms, older persons with medically explained symptoms and older persons with depression. AB - OBJECTIVES: The main objective of the current study is to compare chronic pain characteristics of older patients with Medically Unexplained Symptoms (MUS), to those of patients with Medically Explained Symptoms (MES), and to those of patients with Major Depressive Disorder (MDD). METHOD: By combining data from the OPUS and NESDO study, we compared pain characteristics of 102 older (>60 years) MUS-patients to 145 older MES-patients and 275 older MDD-patients in a case control study design. Group differences were analyzed using ANCOVA, adjusted for demographic and physical characteristics. Linear regression was applied to examine the association between pain characteristics and somatization (BSI-53 somatization scale) and health anxiety (Whitely Index). RESULTS: Older MUS patients have approximately two times more chance of having chronic pain when compared to older MES-patients (OR = 2.01; p = .013) but equal chances as opposed to MDD-patients. After adjustments, MUS-patients report higher pain intensity and disability scores and more pain locations when compared to MES-patients, but equal values as MDD-patients. Health anxiety and somatization levels were positively associated with the number of pain sites in MUS-patients, but not with pain severity or disability. CONCLUSION: Older MUS-patients did not differ from MDD-patients with respect to any of the chronic pain characteristics, but had more intense and disabling pain, and more pain locations when compared to older MES-patients. PMID- 29019414 TI - The TERT hypermethylated oncologic region predicts recurrence and survival in pancreatic cancer. AB - AIM: We explore the biomarker potential of the TERT hypermethylated oncologic region (THOR) in pancreatic cancer. MATERIALS & METHODS: We assessed the methylation status of THOR using the cancer genome atlas data on the cohort of pancreatic cancer (n = 193 patients). RESULTS: THOR was significantly hypermethylated in pancreatic tumor tissue when compared with the normal tissue used as control (p < 0.0001). Also, THOR hypermethylation could distinguish early stage I disease from normal tissue and was associated with worse prognosis. DISCUSSION: We found that THOR is hypermethylated in pancreatic tumor tissue when compared with normal tissue and that THOR methylation correlates with TERT expression in tumor samples. CONCLUSION: Our preliminary findings support the diagnostic and prognostic values of THOR in pancreatic cancer. PMID- 29019416 TI - Communication technology adoption among older adult veterans: the interplay of social and cognitive factors. AB - OBJECTIVES: InTouch is an electronic communication platform designed to be accessible by computer-naive seniors. The present study explored the process of adoption and use of the application by seniors with and without mild cognitive impairment (MCI) through the lens of Social Cognitive Theory (SCT). METHOD: We studied adoption and use of InTouch for social communication over a 12-week period in a 475-bed Veteran's care facility at Sunnybrook Health Sciences Centre in Toronto, Canada. Eleven older adult veterans participated, six of whom had MCI, as indicated by their Montreal Cognitive Assessment score. Veterans were partnered with volunteers, each was provided with an iPad with the InTouch application. Qualitative data were collected through interviews, field notes, and direct observation. Quantitative data were collected from data logging of the software and medical charts. Data types and sources were triangulated and examined through the lens of SCT. RESULTS: A total of 2361 messages (102 videos, 359 audios, 417 photos, 1438 texts) were sent by 10 of the 11 veterans over the 12-week study period. There was no apparent difference in extent of adoption or use, between participants with and without MCI. Participants used various resources and techniques to learn, provided that they felt motivated to connect with others using the app. CONCLUSION: This pilot illustrates both the accessibility of InTouch and the promise of using extrinsic motivators such as social bonding to promote learning in institutionalized older adults with and without cognitive impairment, whose intrinsic motivation and self-efficacy may well be suffering. PMID- 29019417 TI - What a difference a year makes: comparing relationships between stressful life events, mood and life satisfaction among older adults, and their working-age counterparts. AB - OBJECTIVES: Stressful life events (SLEs) have been linked to depression, anxiety, and reduced life satisfaction. The inoculation hypothesis of aging suggests older adults may be less vulnerable to poor psychological outcomes following SLEs than working-age adults. The current study compared relationships between SLEs, mood and life satisfaction among older adults (65+), and adults aged 50-64, and investigated whether group identification and loneliness moderate these relationships. METHOD: A community-based sample of 121 Scottish participants responded to measures of SLEs (modified Social Readjustment Rating Scale), symptoms of depression and anxiety (Hospital Anxiety and Depression Scale), life satisfaction (Life Satisfaction Index A), group identification (Group Identification Scale), and loneliness (UCLA Loneliness Scale). RESULTS: In the 50 64 age group, the number of SLEs was significantly associated with greater symptoms of depression and anxiety, and reduced life satisfaction. Group identification and loneliness did not moderate these relationships. There were no significant relationships in the older adult group. CONCLUSION: The finding of relationships in working-age, but not older adults, supports the inoculation hypothesis of aging. Further research to better understand changes across the lifespan, and inter-relationships with related variables, would be valuable from both theoretical and clinical perspectives. PMID- 29019418 TI - Texting Motivational Interviewing: A Randomized Controlled Trial of Motivational Interviewing Text Messages Designed to Augment Childhood Obesity Treatment. AB - BACKGROUND: Text messages improve health outcomes for adults engaged in weight management. Little is known about whether text messaging parents of children enrolled in obesity treatment will improve child health. METHODS: We conducted a 2-group randomized controlled study among 101 children aged 5-12 and their parent/guardian enrolling in tertiary-care obesity treatment. Participants were randomized to standard care or standard care plus daily motivational interviewing based text messages. The primary outcome was change in child BMI at 3 months. Secondary outcomes included feasibility, health behaviors, attrition, motivation, and parent BMI. RESULTS: We enrolled 101 parent-child dyads and retained 81% to 3 month follow-up. Child participants had a mean age of 9.9 years, and baseline BMI of 30.5 kg/m2. Half (48%) of participants were Black, and 64% of parent participants had a high school equivalent education or less. Ninety-nine percent of parents owned a mobile device with unlimited text messaging. Parents responded to 80% of texts, and 95% felt the texts "always" or "almost always" helped them make a good health decision. We observed no between-group difference in child zBMI from baseline to 3 months (0.0 vs. 0.2, p = 0.2). Intervention participants had significantly better adherence to clinic visits (3.3 visits vs. 2.1 visits/3 months, p < 0.001). CONCLUSIONS: Parent-directed text messages did not significantly change child BMI. However, texting significantly reduced attrition for treatment visits. Nearly all parents in this racially diverse, low-income sample engaged in daily text messaging, making this a feasible approach. PMID- 29019419 TI - Prenatal Exposure to Endocrine Disruptors and Reprogramming of Adipogenesis: An Early-Life Risk Factor for Childhood Obesity. AB - Obesity is a global health problem. It is characterized by excess adipose tissue that results from either increase in the number of adipocytes or increase in adipocytes size. Adipocyte differentiation is a highly regulated process that involves the activation of several transcription factors culminating in the removal of adipocytes from the cell cycle and induction of highly specific proteins. Several other factors, including hormones, genes, and epigenetics, are among the most important triggers of the differentiation process. Although the main contributing factors to obesity are high caloric intake, a sedentary lifestyle, and genetic predisposition, strong evidence supports a role for life exposure to environmental pollutants. Endocrine-disrupting chemicals are exogenous, both natural and man-made, chemicals that disrupt the body signaling processes, thus interfering with the endocrine system. Several studies have shown that prenatal exposure to endocrine disruptors modulates the mechanisms, by which multipotent mesenchymal stem cells differentiate into adipocytes. This review discusses adipocytes differentiation and highlights the possible mechanisms of prenatal exposure to endocrine disruptors in reprogramming of adipogenesis and induction of obesity later in life. Therefore, this review provides knowledge that reduction of early life exposure to these chemicals could open the door for new strategies in the prevention of obesity, especially during childhood. PMID- 29019420 TI - What role does stereotactic ablative radiotherapy have in advanced castrate resistant prostate cancer? PMID- 29019421 TI - Management of acute pain in the postoperative setting: the importance of quality indicators. AB - Despite the introduction of evidence-based recommendations for postoperative pain management (POPM), the consensus is that pain control remains suboptimal. Barriers to achieving patient-satisfactory analgesia include deficient knowledge regarding POPM among staff, lack of instructions, insufficient pain assessments and sub-optimal treatment. Effective monitoring of POPM is essential to enable policy makers and healthcare providers to improve the quality of care. Quality indicators (QIs) are quantitative measures of clinical practice that can monitor, evaluate and guide the quality of care provided to patients. QIs can be used to assess various aspects relating to the care process and they have proven useful in improving health outcomes in diseases such as myocardial infarction. In this commentary we critically analyze the evidence regarding the use of QIs in acute POPM based upon the experience of pain specialists from Europe and the USA who are members of the Change Pain Advisory Board. We also undertook a literature review to see what has been published on QIs in acute pain with the goal of assessing which QIs have been developed and used, and which ones have been successful/unsuccessful. In the hospital sector the development and implementation of QIs is complex. The nature of POPM requires a highly trained, multidisciplinary team and it is at this level that major improvements can be made. Greater involvement of patients regarding pain management is also seen as a priority area for improving clinical outcomes. Changes in structure and processes to deliver high-level quality care need to be regularly audited to ensure translation into better outcomes. QIs can help drive this process by providing an indicator of current levels of performance. In addition, outcomes QIs can be used to benchmark levels of performance between different healthcare providers. PMID- 29019423 TI - National hyperlipidemia management policies improve lipid target attainment in clinical practice. PMID- 29019422 TI - Pharmacotherapy of mood disorders and psychosis in pre- and post-natal women. AB - INTRODUCTION: Untreated mood and psychotic disorders can have substantial adverse impacts on the patient, the fetus and the family, while treatment can ameliorate such problems. To address concerns by clinicians about the risks of psychotropic medications, this review addresses the risk/benefit analysis of somatic therapies for psychiatric disorders during pregnancy and lactation. Areas covered: All available research was reviewed on the impact on pregnancy and breastfeeding of mood and psychotic disorders, and of antidepressants, mood stabilizers, antipsychotic drugs, and electroconvulsive therapy. References cited in other reviews, case series, formal studies, pharmacologic discussions, and theoretical pieces were added. Available case control and other studies were critically reviewed and diverse explanations for their findings were considered. Expert opinion: The potential benefits of treatment of mood and psychotic disorders often outweigh the risks after alternative therapies have been considered. Some medications, particularly paroxetine and valproate, pose greater risks during pregnancy, while the teratogenic risks of lithium have probably been overstated. There is more experience with first than with second generation antipsychotic drugs during pregnancy and lactation. Nursing an infant is possible while taking a number of antidepressants, mood stabilizers or antipsychotic drugs. PMID- 29019425 TI - Communication of behaviour change interventions: Can they be recognised from written descriptions? AB - OBJECTIVE: Communication of the content of a behaviour change intervention (BCI) involves clear description followed by appropriate recognition and interpretation. We investigated accuracy of recognition of BCI descriptions and the effects of training in the behaviour change taxonomy BCTTv1. METHODS: Materials were 166 written descriptions of two BCIs previously written by 166 separate writers after viewing a video of the BCI. Each of the current participants (12 naive and 12 trained in BCTTv1) was presented with a random sample of the written descriptions and asked to form groups of descriptions they judged to be describing the same intervention. For each participant, we assessed the number of groupings of BCI descriptions, their purity (containing only one BCI) and their differentiation (having a dominant BCI). RESULTS: All except one participant classified the descriptions into more than two groupings. Naive participants created significantly more groupings, fewer 'pure' groupings and less differentiated groupings (all Mann-Whitney p < .05). CONCLUSIONS: Written communications of BCI contents may not be recognised and interpreted adequately to support implementation. BCT taxonomy training may lead to some progress in interpreting the active content of interventions but, based on this limited study, further progress is needed if BCIs for accurate implementation. PMID- 29019424 TI - Endoscopy for patients affected by inflammatory bowel disease: bowel preparation and sedation. AB - INTRODUCTION: Endoscopy has a key role in the management of inflammatory bowel disease (IBD). It is helpful in the diagnosis, in case of relapse, refractoriness, before therapeutic changes, after surgery as well as in the assessment of mucosal healing and in the surveillance of colo-rectal cancer. IBD patients are intended to undergo several times the examination during their lifespan. Bowel preparation and sedation highly contribute to high-quality colonoscopy. Areas covered: Few studies addressed preparation and sedation in the field of IBD. In this review, we focused our attention on the available evidences about bowel preparation and sedation in patients with IBD. Expert commentary: In recent years, the goal of medical treatment in IBD is shifting from clinical improvement in symptoms towards mucosal healing. High-quality endoscopy will gain even more importance in the management of IBD. It is important to locate the most effective preparation and the best sedation in patient with IBD to perform a high quality endoscopy. PMID- 29019426 TI - Anti-catabolic neurohormonal blockade to improve skeletal muscle during disease. PMID- 29019427 TI - Management of inflammatory bowel disease-related anemia and iron deficiency with specific reference to the role of intravenous iron in current practice. AB - INTRODUCTION: Anemia is a common extraintestinal manifestation in patients with inflammatory bowel disease, impacting disease prognosis, morbidity, hospitalization rates and time lost from work. While iron deficiency anemia and anemia of chronic inflammation predominate, combinations of hematimetric and biochemical markers facilitate the diagnosis and targeted therapy of other etiologies according to their underlying pathophysiological causes. Intravenous iron replacement is currently recommended in IBD patients with moderate to severe anemia or intolerance to oral iron. Areas covered: This review examines the impact, pathophysiology and diagnostics of iron deficiency and anemia, compares the characteristics and safety profiles of available oral and intravenous iron preparations, and highlights issues which require consideration in decision making for therapy administration and monitoring. Expert opinion: Modern intravenous iron formulations have been shown to be safe and effective in IBD patients, allowing rapid anemia correction and repletion of iron stores. While traditional oral iron preparations are associated with increased inflammation, negative effects on the microbiome, and poor tolerance and compliance, first clinical trial data indicate that newer oral compounds such as ferric maltol and sucrosomial iron offer improved tolerability and may thus offer a viable alternative for the future. PMID- 29019430 TI - Conference Diary. PMID- 29019428 TI - Binding analysis of antioxidant polyphenols with PAMAM nanoparticles. AB - Dietary polyphenols are abundant micronutrients in our diet and paly major role in prevention of degenerative diseases. The binding efficacy of antioxidant polyphenols resveratrol, genistein, and curcumin with PAMAM-G3 and PAMAM-G4 nanoparticles was investigated in aqueous solution at physiological conditions, using multiple spectroscopic methods, TEM images, and docking studies. The polyphenol bindings are via hydrophilic, hydrophobic, and H-bonding contacts with resveratrol forming more stable conjugates. As PAMAM size increased the loading efficacy and the stability of polyphenol-polymer conjugates were increased. Polyphenol binding induced major alterations of dendrimer morphology. PAMAM nanoparticles are capable of delivery of polyphenols in vitro. PMID- 29019431 TI - Synthesis and spectroscopic characterization study of new palladium complexes containing bioactive O,O-chelated ligands: evaluation of the DNA/protein BSA interaction, in vitro antitumoural activity and molecular docking. AB - [Pd{(C,N)-C6H4CH2NH(Et) (Qu)] (2) and [Pd{(C,N)-C6H4CH2NH(Et) (Nar)] (3) (Qu = Quercetin, Nar = Naringin) mononuclear palladium (II) complexes have been synthesized and characterized using elemental analysis, IR and electronic spectroscopy. The interaction of the prepared complexes with calf thymus DNA and bovine serum albumin (BSA), monitored by UV-visible and fluorescence titrations, respectively, have been carried out to better understand the mode of their action under biological conditions. Intercalative binding mode between the complexes and DNA is suggested by the binding constant (Kb) values of 2.5 * 106 and 3.2 * 106 for complexes 2 and 3, respectively. In particular, the in vitro cytotoxicity of the complexes on two cancer cells lines (bladder carcinoma TCC and breast cancer MCF7) showed that the compounds had broad spectrum, anti-cancer activity with low IC50 values and the order of in vitro anticancer activities is consistent with the DNA-binding affinities. In the meantime, the quenching of tryptophan emission with the addition of complexes using BSA as a model protein indicated the protein binding ability. The quenching mechanisms of BSA by the complexes were static processes, according to the results obtained. The competitive binding using Warfarin, Digoxin and Ibuprofen site markers, which contain definite biding sites, demonstrated that the complexes bind to site I on BSA. Ultimately, the binding sites of DNA and BSA with the complexes have been determined by molecular modelling studies. PMID- 29019432 TI - Conference Diary. PMID- 29019434 TI - Session 3-Labour and Delivery. PMID- 29019436 TI - SESSION 1-FETAL MEDICINE. PMID- 29019435 TI - SESSION 2-MATERNAL MEDICINE. PMID- 29019437 TI - SESSION 3-LABOUR AND DELIVERY. PMID- 29019438 TI - Session 1-Fetal Medicine. PMID- 29019440 TI - Disclosure and Fit Capability of the Filtering Facepiece Respirator. AB - The filtering facepiece air-purifying respirator is annually purchased in the tens of millions and widely used for worker protection from harmful airborne particulates. The workplace consumers of this safety product, i.e., employers, workers, and safety and health professionals, have assurances of its effectiveness through the respirator certification and disclosure requirements of the National Institute for Occupational Safety and Health. However, the certification of a critical performance requirement has been missing for the approved filtering facepiece respirator since 1995: fit capability. Without this certification, consumers continue to be at risk of purchasing a respirator model that may fit a small percentage of the intended users. This commentary updates and expands an earlier one by this author, addresses the consequences of poorly fitting certified models on the market and lack of disclosure, and calls for further action by National Institute for Occupational Safety and Health to meet the needs and expectations of the consumer. PMID- 29019439 TI - Ibrutinib as salvage therapy in mantle cell lymphoma with central nervous system involvement in a pretreated unfit patient. PMID- 29019441 TI - Resilient, Responsive, and Healthy Developing Bones: The Good News About Exercise and Bone in Children and Youth. PMID- 29019442 TI - The Use of Hamstring Fatigue to Reduce Quadriceps Inhibition After Anterior Cruciate Ligament Reconstruction. AB - Arthrogenic muscle inhibition, an inability to fully activate the quadriceps muscles, has been persistently observed after anterior cruciate ligament reconstruction (ACLr) surgery. Reductions in quadriceps activation may be partly due to the flexion reflex pathway, hamstrings activation, and reciprocal quadriceps inhibition. Since central fatigue has been shown to modify hamstring excitability and change the hamstring reflex response, hamstring fatigue might alleviate quadriceps muscle inhibition by counteracting the flexion reflex. In this study, nine young adult athletes (age: M = 19.9 years, SD = 1.7) with unilateral ACLr and nine control athletes (age: M = 24.0 years, SD = 2.4) with no previous history of knee injury performed tempo squats to induce fatigue. The ACLr group tended to use hamstrings for more hip flexion and trunk forward flexion than the control group. We assessed each participant's quadriceps inhibition through the central activation ratio (CAR), measured by twitch interpolation, before and after the induced fatigue. A mixed analysis of variance was used to examine the effect of fatigue on the CAR between pre- and post fatigue and for both ACLr and control groups. The ACLr group showed significantly ( p = .010) greater CAR of the quadriceps post-fatigue ( M = 96.0%, SD = 7.6%) than pre-fatigue ( M = 81.2%, SD = 15.8%), while the control group showed no significant ( p = .969) pre-fatigue ( M = 96.9%, SD = 9.6%) and post-fatigue ( M = 97.0%, SD = 17.1%) differences. Thus, fatigue training may be used as a rehabilitation strategy to restore normal quadriceps function at the knee joint following ACL reconstruction by relaxing the hamstrings and overcoming quadriceps inhibition. PMID- 29019443 TI - Complexity and the human experience: modelling complexity in the humanities and social sciences. PMID- 29019444 TI - Evaluation of intraoperative analgesia provided by incisional lidocaine and bupivacaine in cats undergoing ovariohysterectomy. AB - Objectives The objective of this study was to assess the intraoperative analgesic effect of preoperative infiltration of the incision site with lidocaine or a mixture of lidocaine with bupivacaine in cats undergoing ovariohysterectomy (OHE). Methods This was a prospective, randomised clinical study. Healthy female intact cats (n = 75) undergoing OHE under medetomidine-ketamine-buprenorphine anaesthesia were assigned randomly into three treatment groups (n = 25 per group) to receive one of two local anaesthesia protocols or placebo preoperatively in the midline incision: lidocaine 1.5 mg/kg (group GL) or mixture of lidocaine 1 mg/kg and bupivacaine 1 mg/kg (group GLB) or sodium chloride 0.9% (control group). Blood pressure, heart and respiratory rate, temperature, muscle tonus and pupillary reflex were registered during surgery. During recovery, the cats were observed for side effects. Postoperative analgesia was provided with meloxicam (0.2 mg/kg). Most cats were rechecked 2 weeks postoperatively to remove skin sutures. Results There was no significant difference between groups regarding breed, age, body weight, surgical time and postoperative complication rate. The majority of the cats (60%) included in the control group received a supplemental bolus of propofol during surgery, when compared with 43% and 44% of the cats included in the GL and GLB groups, respectively. Heart rate was significantly higher ( P <0.05) in the control group at the time of excision of the second ovary and the uterine body. Mean arterial pressure (MAP) was stable in both treatment groups; in contrast, it tended to increase in the control group. Heart rate and MAP were similar between treatment groups. Conclusions and relevance Preoperative incisional block with only lidocaine or combined with bupivacaine seems to produce a similar intraoperative analgesia in cats undergoing OHE. Despite the similar intraoperative analgesic effect between treatment groups, the combination of lidocaine and bupivacaine reduced the required doses, and had a faster onset of action and prolonged effect. PMID- 29019445 TI - The beneficial effect of contextual emotion on memory: the role of integration. AB - This study investigates the effects of emotion on the integration mechanism which binds together the components of an event and the relations between these components and encodes them within a memory trace [Versace, R., Vallet, G. T., Riou, B., Lesourd, M., Labeye, E, & Brunel, L. (2014). Act-In: An integrated view of memory mechanisms. Journal of Cognitive Psychology, 26(3), 280-306. doi: 10.1080/20445911.2014.892113 ]. Based on the literature, the authors argue that, in a memory task, contextual emotion could strengthen the integration mechanism and, more specifically, the relations between a target item and its contextual features. To test this hypothesis, the authors used two odorants (neutral and negative) to compare the effects of a negative context with those of a neutral one on three different types of recall: item recall (memory for pictures objects), source recall (spatial position of the pictures in a matrix) and recall of the association between an item and its location. The results showed that, in the negative odour context, association recall and source recall - but not item recall - were better than in the neutral odour context thus confirming the effect of emotion on integration. The results lead to the hypothesis that the effects of emotion on memory are linked to the way emotion is introduced into the experimental settings: via the items to be memorised or via the context. PMID- 29019446 TI - The role of the oximes HI-6 and HS-6 inside human acetylcholinesterase inhibited with nerve agents: a computational study. AB - The oximes 4-carbamoyl-1-[({2-[(E)-(hydroxyimino) methyl] pyridinium-1-yl} methoxy) methyl] pyridinium (known as HI-6) and 3-carbamoyl-1-[({2-[(E) (hydroxyimino) methyl] pyridinium-1-yl} methoxy) methyl] pyridinium (known as HS 6) are isomers differing from each other only by the position of the carbamoyl group on the pyridine ring. However, this slight difference was verified to be responsible for big differences in the percentual of reactivation of acetylcholinesterase (AChE) inhibited by the nerve agents tabun, sarin, cyclosarin, and VX. In order to try to find out the reason for this, a computational study involving molecular docking, molecular dynamics, and binding energies calculations, was performed on the binding modes of HI-6 and HS-6 on human AChE (HssAChE) inhibited by those nerve agents. PMID- 29019448 TI - Comparison of ultrasonographic findings in cats with and without azotaemia. AB - Objectives The objective of this study was to identify the renal ultrasonographic (US) findings most strongly associated with azotaemia in cats. Methods US findings in 238 cats with (serum creatinine >180 MUmol/l) and 270 cats without azotaemia were compared in a retrospective case-control study. Cats with pre renal azotaemia or urethral obstruction were excluded. Data extracted from the medical records included age, body weight and body condition score (BCS). Quantitative and subjective US findings were extracted from archived ultrasound images and contemporaneous reports. Results In non-azotaemic cats, mean +/- SD renal length was 40.1 +/- 5.5 mm. Male cats had larger kidneys than female cats (mean difference 5.2 mm; P = 0.001) and, on average, the right kidney was slightly larger than the left (mean difference 1.6 mm; P = 0.01). Azotaemic cats had significantly lower mean body weight and BCS, and greater mean age and renal pelvic diameter. Renal pelvic diameter was negatively correlated with urine specific gravity (rho -0.44, P <0.001). Compared with non-azotaemic cats, there was no difference in mean renal length of azotaemic cats because the numbers with enlarged kidneys and small kidneys were similar. Radiologists' subjective assessments of renal size differed markedly between azotaemic and non-azotaemic cats, with azotaemic cats more likely to be recorded falsely as having abnormally small or enlarged kidneys. US findings significantly associated with azotaemia were perinephric fluid (odds ratio [OR] 26.4, 95% confidence interval [CI] 3.4 207.7), small kidneys (OR 8.4, 95% CI 4.0-17.4), hyperechoic renal cortex (OR 4.1, 95% CI 2.2-7.6), loss of corticomedullary differentiation (OR 4.1, 95% CI 1.8-9.6), renal calculi (OR 2.7, 95% CI 1.4-4.9), enlarged kidneys (OR 2.5, 95% CI 1.2-5.5) and dilated renal pelvis (OR 1.6, 95% CI 1.3-1.9). Conclusions and relevance Perinephric fluid was the US finding most strongly associated with azotaemia in this study and may merit more emphasis than it has received to date. Bias in radiologists' subjective assessments of renal size suggests that other subjective findings will also be biased. PMID- 29019447 TI - Survival of patients with CD20-negative variants of large B-cell lymphoma: an analysis of the National Cancer Data Base. AB - Using records from the National Cancer Data Base, we studied overall survival of CD20-negative variants of diffuse large B-cell lymphoma (DLBCL): primary effusion (PEL, N = 228), plasmablastic (PBL, N = 481), ALK-positive large B-cell (ALK + LBLC, N = 15), and human herpesvirus-8-positive DLBCL (HHV8 + DLBCL, N = 77). Three-year survival was 27% for PEL, 40% for PBL, 34% for ALK + LBCL, and 63% for HHV8 + DLBCL. Compared with unspecified DLBCL, and adjusting for clinical characteristics (including the HIV status), survival was significantly worse for PEL (hazard ratio [HR], 1.58; 95% confidence interval [CI], 1.31-1.90), PBL (HR 1.66; 95% CI, 1.41-1.95), and ALK + LBCL (HR, 2.70; 95% CI, 1.27-5.75), but not for HHV8 + DLBCL (HR, 0.89; 95% CI, 0.54-1.45). The HIV status was not an independent prognostic factor in PEL, PBL, or HHV8 + DLBCL. Advanced stage was prognostic for PBL (p = .0002), but not for ALK + LBCL (p = .96), or HHV8 + DLBCL (p = .28). In PEL and PBL survival significantly differed according to primary site. Novel therapeutic approaches are urgently needed for these rare diseases. PMID- 29019449 TI - Middle Meningeal Artery Embolization for Chronic Subdural Hematoma. AB - Purpose To evaluate the effect of middle meningeal artery (MMA) embolization on chronic subdural hematoma (CSDH) and compare the treatment outcomes of MMA embolization and conventional treatment. Materials and Methods All consecutive patients 20 years or older with CSDH were assessed for eligibility. CSDHs with a focal location, a thickness of 10 mm or less, no mass effect, or underlying conditions were excluded. Seventy-two prospectively enrolled patients with CSDH underwent MMA embolization (embolization group; as the sole treatment in 27 [37.5%] asymptomatic patients and with additional hematoma removal for symptom relief in 45 [62.5%] symptomatic patients). For comparison, 469 patients who underwent conventional treatment were included as a historical control group (conventional treatment group; close, nonsurgical follow-up in 67 [14.3%] and hematoma removal in 402 [85.7%] patients). Primary outcome was treatment failure defined as a composite of incomplete hematoma resolution (remaining or reaccumulated hematoma with thickness > 10 mm) or surgical rescue (hematoma removal for relief of symptoms that developed with continuous growth of initial or reaccumulated hematoma). Secondary outcomes included surgical rescue as a component of the primary outcome and treatment-related complication for safety measure. Six-month outcomes were compared between the study groups with logistic regression analysis. Results Spontaneous hematoma resolution was achieved in all of 27 asymptomatic patients undergoing embolization without direct hematoma removal. Hematoma reaccumulation occurred in one (2.2%) of 45 symptomatic patients receiving embolization with additional hematoma removal. Treatment failure rate in the embolization group was lower than in the conventional treatment group (one of 72 patients [1.4%] vs 129 of 469 patients [27.5%], respectively; adjusted odds ratio [OR], 0.056; 95% confidence interval [CI]: 0.011, 0.286; P = .001). Surgical rescue was less frequent in the embolization group (one of 72 patients [1.4%] vs 88 of 469 patients [18.8%]; adjusted OR, 0.094; 95% CI: 0.018, 0.488; P = .005). Treatment-related complication rate was not different between the two groups (0 of 72 patients vs 20 of 469 patients [4.3%]; adjusted OR, 0.145; 95% CI: 0.009, 2.469; P = .182). Conclusion MMA embolization has a positive therapeutic effect on CSDH and is more effective than conventional treatment. (c) RSNA, 2017. PMID- 29019450 TI - Cataract Risk in a Cohort of U.S. Radiologic Technologists Performing Nuclear Medicine Procedures. AB - Purpose To estimate the risk of cataract in a cohort of nuclear medicine (NM) radiologic technologists on the basis of their work histories and radiation protection practices. Materials and Methods In the years 2003-2005 and 2012-2013, 42 545 radiologic technologists from a U.S. prospective study completed questionnaires in which they provided information regarding their work histories and cataract histories. Cox proportional hazards models, stratified according to birth-year cohort (born before 1940 or born in 1940 or later) and adjusted for age, sex, and race, were used to estimate hazard ratios (HRs) for the risk of cataract in radiologic technologists according to NM work history practices according to decade. Results During the follow-up period (mean follow-up, 71/2 years), 7137 incident cataracts were reported. A significantly increased risk of cataract (HR, 1.08; 95% confidence interval [CI]: 1.03, 1.14) was observed among workers who performed an NM procedure at least once-as opposed to never. Risks of cataract were increased in the group who had performed a diagnostic (HR, 1.07; 95% CI: 1.01, 1.12) or therapeutic (HR, 1.10; 95% CI: 1.04, 1.17) NM procedure. Risks were higher for those who had first performed diagnostic NM procedures in the 1980s to early 2000s (HR, 1.30; 95% CI: 1.08, 1.58) and those who had performed therapeutic NM procedures in the 1970s (HR, 1.11; 95% CI: 1.01, 1.23) and in the 1980s to early 2000s (HR, 1.14; 95% CI: 1.02, 1.29). With the exception of a significantly increased risk associated with performing therapeutic NM procedures without shielding the radiation source in the 1980s (HR, 1.32; 95% CI: 1.04, 1.67), analyses revealed no association between cataract risk and specific radiation protection technique used. Conclusion An increased risk of cataract was observed among U.S. radiologic technologists who had performed an NM procedure at least once. This association should be examined in future studies incorporating estimated lens doses. (c) RSNA, 2017. PMID- 29019451 TI - Autoimmunity in a cohort of 471 patients with primary antibody deficiencies. AB - OBJECTIVES: The aim of this study was to evaluate the frequency of autoimmunity in primary antibody deficiency (PAD). METHODS: A total of 471 patients with PADs enrolled in this retrospective cohort study. For all patients' demographic information, clinical records and laboratory data were collected to investigate autoimmune complications. RESULTS: Autoimmune disorders as the first presentation of immunodeficiency were recorded in 11 patients (2.5%). History of autoimmunity was recorded in 125 patients during the course of the disease (26.5%). The frequency of autoimmunity in common variable immune deficiency (32.0%) was higher than other forms of PADs. The most common autoimmune manifestations were reported to be autoimmune gastrointestinal disease and autoimmune cytopenias. Among patients with autoimmunity, 87 patients (69.6%) had a history of one autoimmune disorder, while 38 patients (30.4%) had a history of multiple autoimmunities. The immune thrombocytopenic purpura and autoimmune hemolytic anemia were the most two concomitant autoimmune disorders in 16 (42.1%) of 38 patients with multiple autoimmunities. Comparing the frequency of Tregs in PAD patients with autoimmunity showed that, patients with multiple autoimmunities had lower Tregs than those with single autoimmunity (p = 0.017). CONCLUSION: It is important that non-immunologist physicians be alert of the associated autoimmunity with PADs in order to reduce the diagnostic delay and establish timely immunoglobulin replacement therapy in these patients. PMID- 29019453 TI - EgoNet identifies differential ego-modules and pathways related to prednisolone resistance in childhood acute lymphoblastic leukemia. AB - PURPOSE: To extract feature ego-modules and pathways in childhood acute lymphoblastic leukemia (ALL) resistant to prednisolone treatment, and further to explore the mechanisms behind prednisolone resistance. MATERIALS AND METHODS: EgoNet algorithm was used to identify candidate ego-network modules, mainly via constructing differential co-expression network (DCN); selecting ego genes; collecting ego-network modules; refining candidate modules. Afterwards, statistical significance was calculated for these candidate modules. Biological functions of differential ego-network modules were identified using Reactome database. To verify this proposed method can lead to truly positive findings in clinical settings, support vector machine (SVM) was utilized to compute the AUC values for each significant pathway using 3-fold cross-validation method. To predict the reliability of our findings, another established method (attract) was used to identify the differential attractor modules using the same microarray profile. RESULTS: After eliminating the modules with classification accuracy < 0.9 and node number < 15, only ego-network module 30 was eligible. After significance calculation, module 30 was significant. Module 30 was enriched in APC/C-mediated degradation of cell cycle proteins. The AUC for the significant pathway of APC/C-mediated degradation of cell cycle proteins was 0.915. Although the attract method obtained more modules, the module identified by our proposed method owned more gene nodes, and had more classification ability (AUC = 0.915). CONCLUSION: One differential ego-network module identified in childhood ALL resistance to prednisolone based on DCN and EgoNet, might be helpful to reveal the mechanisms underlying prednisolone resistance in childhood ALL. PMID- 29019454 TI - The Dance of "Old" and "New" in Chinese Print Culture, 1860s-1955. AB - Argument Scholars of modern Chinese publishing and book culture focus on the dramatic transformations that took place in the late nineteenth and early twentieth centuries: the new technologies that enabled "mass" printing and the development of "modern" genres of print. They often neglect the fact that xylography remained a working technology through much of the Republican period and even into the People's Republic of China. Here I examine the continued use of woodblock printing and the continuing popularity of "traditional" textual genres from two perspectives. First, from a "bottom up" perspective, I examine the production and sale of woodblock texts in rural markets, often in the face of efforts by both the Republic and the People's Republic to prohibit their use. Second, from a perspective from the top, I consider the deliberate choices made by the government, some elite book collector-publishers, and Daoist and Buddhist devotees to print certain works xylographically. PMID- 29019452 TI - Minimal residual disease analysis in myeloma - when, why and where. AB - The primary hurdle in the path to curing multiple myeloma (MM) is defining a validated minimal residual disease (MRD) and its utility in the therapeutic decision making. A better definition of MRD will aid in tailoring MM therapy further to address the clonal heterogeneity and genomic instability and overcome patient's ineffective immune surveillance. MRD analysis can define the logical endpoint for maintenance therapy, in addition also aids in providing a better clinical end point for studies comparing novel agents in myeloma. MRD is a surrogate for the survival in MM. Guidelines for global incorporation of MRD in myeloma are fraught with lack of standardization, universal availability and abridged physicians' understanding of MRD modalities. We aimed at addressing some of the frequently asked questions in the MRD assessment and will also place in perspective some arguments in favor of MRD assessment in routine practice and clinical trial scenario. PMID- 29019455 TI - "To Feel at Home in the Wonderful World of Modern Science": New Chinese Historiography and Qing Intellectual History. AB - Argument In recent decades a large body of scholarship on the first half of twentieth-century China has successfully shown the ways in which history and historiography had been constructed at the time, as well as the links between history, national identity, education, and politics that was forged during this period. In this paper, I examine Qing intellectual history, in particular that of the mid or "High Qing." I discuss the development of the historiography of this field in the early twentieth century by drawing on the larger developments in historiography; by demonstrating how these developments had shaped Qing intellectual history for later times; by focusing on the historical actors' sense of the importance of "science," being "scientific," and "modernization"; and, by unraveling the intimate connections to older historiographical narratives going back all the way to the eighteenth and nineteenth centuries. PMID- 29019456 TI - Introduction: Paving the Old-New Way from Qing to China. AB - The funeral procession of Sheng Xuanhuai (, 1844-1916) - the renowned Qing scholar-official, financier, and "father of Chinese industrialism" - meandered through the streets of Shanghai on 18 November 1917. The funeral was a grand event, one that was purportedly documented in film, later to be distributed as the first "news short-film" () in China. The North China Herald reported on the event in some detail, at times in rather florid language, and suggested that "the cortege was splendid and impressive, bringing back the days of the Manchu emperors. The ceremonial costumes, the musical instruments and much more of the accoutrements dated back to the days of the Empire" ("Sheng Kung-pao's Funeral," 1917, 467-68). And indeed, the procession included a variety of ritual customs and insignia from Qing (1644-1911) times: imperial banners, ancestral tablets, Buddhist and Daoist priests, paper artifacts, and much more. Simultaneously, nonetheless, other kinds of participants and objects - new and not of imperial pedigree - were part of and intermixed with the older materials: certificates of rank were carried on cars; boy scouts and college students marched alongside the priests; many of the participants arrived by train (mainly from Sheng's hometown, Suzhou); and as the Shanghai portion of the procession ended, it continued by steamer to Suzhou. The conclusion of the North China Herald account, however, seems to have emphasized a dichotomy of old and new rather than a joyful mix of the two: Hundreds of men, dressed in the ancient costume of the old dynasties, bore a strong contrast to the eight behind them, sons of intimate friends of the deceased. They were on horseback and wore high silk hats, frock coats and white breeches tucked in riding boots. Truly the passing of the old and the entering of the new. (Ibid.; emphasis added) This view - the old giving way to the new - was not just an off-hand (Western) journalistic analysis; it was part of a larger discourse about the nature of modernity, about progress, and about the relationship between East and West. By the early twentieth century, China was often perceived by most Westerners and Chinese alike as traditional, backward, and weak. It was, thus, commonly stated that the old was giving way to the new (descriptive), should be giving way to the new (prescriptive), or was bound to give way to the new (quasi-fatalistic), if China was to survive. This kind of discourse was put forward by both Western and Chinese writers, who embraced this linear, progressive, view of the relationship between the old and the new, well before Sheng's funeral or the Qing's demise. In the aftermath of that demise, the New (not "Modern") Culture Movement began to grow and seek solutions for the old new nation's crisis. The Movement's rhetoric in particular advanced the need for the triumph of the new, and journals, such as New People, New Tide, or New Youth (, , ) served as media for extending such views. PMID- 29019457 TI - Science for the Chinese Common Reader? Myriad Treasures and New Knowledge at the Turn of the Twentieth Century. AB - Argument This article argues that in order to discern the place of science in the epistemology of Chinese common readers, it is critical to look beyond the coastal enclaves where foreign missionaries and experts interacted with Chinese scholars and officials, beyond the translated treatises they produced, and even beyond the various forms of new media that attempted to more widely disseminate the principles of Western science. Instead, it asserts the need to engage a different register of materials that were less directly tied to foreign expertise, more directly in line with pre-existing lineages of printed materials, and at the same time, integral to early-twentieth-century Chinese circuits of information. The article focuses explicitly on one print phenomena that has been completely overlooked in the scholarship to date, the expansion and revitalization of the genre of texts known as wanbao quanshu (comprehensive compendia of myriad treasures) in the late Qing (1890-1911) and early Republic (1912-1930). PMID- 29019458 TI - Visualizing the Geography of the Diseases of China: Western Disease Maps from Analytical Tools to Tools of Empire, Sovereignty, and Public Health Propaganda, 1878-1929. AB - Argument This article analyzes for the first time the earliest western maps of diseases in China spanning fifty years from the late 1870s to the end of the 1920s. The 24 featured disease maps present a visual history of the major transformations in modern medicine from medical geography to laboratory medicine wrought on Chinese soil. These medical transformations occurred within new political formations from the Qing dynasty (1644-1911) to colonialism in East Asia (Hong Kong, Taiwan, Manchuria, Korea) and hypercolonialism within China (Tianjin, Shanghai, Amoy) as well as the new Republican Chinese nation state (1912-49). As a subgenre of persuasive graphics, physicians marshaled disease maps for various rhetorical functions within these different political contexts. Disease maps in China changed from being mostly analytical tools to functioning as tools of empire, national sovereignty, and public health propaganda legitimating new medical concepts, public health interventions, and political structures governing over human and non-human populations. PMID- 29019459 TI - Self-Inflicated Cardiac Injury by Multiple Sewing Needles. PMID- 29019462 TI - Stability and electronic properties of hybrid SnO bilayers: SnO/graphene and SnO/BN. AB - Van der Waals structures based on two-dimensional materials have been considered as promising structures for novel nanoscale electronic devices. Two-dimensional SnO films which display intrinsic p-type semiconducting properties were fabricated recently. In this paper, we consider vertically stacked heterostructures consisting of a SnO monolayer with graphene or a BN monolayer to investigate their stability, electronic and transport properties using density functional theory. The calculated results find that the properties of the constituent monolayers are retained in these SnO-based heterostructures, and a p type Schottky barrier is formed in the SnO/graphene heterostructure. Additionally, the Schottky barrier can be effectively controlled with an external electric field, which is useful characteristic for the van der Waals heterostructure-based electronic devices. In the SnO/BN heterostructure, the electronic properties of SnO are least affected by the insulating monolayer suggesting that the BN monolayer would be an ideal substrate for SnO-based nanoscale devices. PMID- 29019460 TI - Auditory Hallucinations as Translational Psychiatry: Evidence from Magnetic Resonance Imaging. AB - In this invited review article, I present a translational perspective and overview of our research on auditory hallucinations in schizophrenia at the University of Bergen, Norway, with a focus on the neuronal mechanisms underlying the phenomenology of experiencing "hearing voices". An auditory verbal hallucination (i.e. hearing a voice) is defined as a sensory experience in the absence of a corresponding external sensory source that could explain the phenomenological experience. I suggest a general frame or scheme for the study of auditory verbal hallucinations, called Levels of Explanation. Using a Levels of Explanation approach, mental phenomena can be described and explained at different levels (cultural, clinical, cognitive, brain-imaging, cellular and molecular). Another way of saying this is that, to advance knowledge in a research field, it is not only necessary to replicate findings, but also to show how evidence obtained with one method, and at one level of explanation, converges with evidence obtained with another method at another level. To achieve breakthroughs in our understanding of auditory verbal hallucinations, we have to advance vertically through the various levels, rather than the more common approach of staying at our favourite level and advancing horizontally (e.g., more advanced techniques and data acquisition analyses). The horizontal expansion will, however, not advance a deeper understanding of how an auditory verbal hallucination spontaneously starts and stops. Finally, I present data from the clinical, cognitive, brain-imaging, and cellular levels, where data from one level validate and support data at another level, called converging of evidence. Using a translational approach, the current status of auditory verbal hallucinations is that they implicate speech perception areas in the left temporal lobe, impairing perception of and attention to external sounds. Preliminary results also show that amygdala is implicated in the emotional "colouring" of the voices and that excitatory neurotransmitters might be involved. What we do not know is why hallucinatory episodes occur spontaneously, why they fluctuate over time, and what makes them spontaneously stop. Moreover, is voice hearing a category or dimension in its own right, independent of diagnosis, and why is the auditory modality predominantly implicated in psychotic disorders, while the visual modality dominates in, for example, neurological diseases? PMID- 29019463 TI - Size-dependent melting modes and behaviors of Ag nanoparticles: a molecular dynamics study. AB - The size-dependent melting behaviors and mechanisms of Ag nanoparticles (NPs) with diameters of 3.5-16 nm were investigated by molecular dynamics (MD). Two distinct melting modes, non-premelting and premelting with transition ranges of about 7-8 nm, for Ag NPs were demonstrated via the evolution of distribution and transition of atomic physical states during annealing. The small Ag NPs (3.5-7 nm) melt abruptly without a stable liquid shell before the melting point, which is characterized as non-premelting. A solid-solid crystal transformation is conducted through the migration of adatoms on the surface of Ag NPs with diameters of 3.5-6 nm before the initial melting, which is mainly responsible for slightly increasing the melting point of Ag NPs. On the other hand, surface premelting of Ag NPs with diameters of 8-16 nm propagates from the outer shell to the inner core with initial anisotropy and late isotropy as the temperature increases, and the close-packed facets {111} melt by a side-consumed way which is responsible for facets {111} melting in advance relative to the crystallographic plane {111}. Once a stable liquid shell is formed, its size-independent minimum thickness is obtained, and a three-layer structure of atomic physical states is set up. Lastly, the theory of point defect-pair (vacancy-interstitial) severing as the mechanism of formation and movement of the solid-liquid interface was also confirmed. Our study provides a basic understanding and theoretical guidance for the research, production and application of Ag NPs. PMID- 29019464 TI - Ovipositor-inspired steerable needle: design and preliminary experimental evaluation. AB - Flexible steerable needles have the potential to allow surgeons to reach deep targets inside the human body with higher accuracy than rigid needles do. Furthermore, by maneuvering around critical anatomical structures, steerable needles could limit the risk of tissue damage. However, the design of a thin needle (e.g. diameter under 2 mm) with a multi-direction steering mechanism is challenging. The goal of this paper is to outline the design and experimental evaluation of a biologically inspired needle with a diameter under 2 mm that advances through straight and curved trajectories in a soft substrate without being pushed, without buckling, and without the need of axial rotation. The needle design, inspired by the ovipositor of parasitoid wasps, consisted of seven nickel titanium wires and had a total diameter of 1.2 mm. The motion of the needle was tested in gelatin phantoms. Forward motion of the needle was evaluated based on the lag between the actual and the desired insertion depth of the needle. Steering was evaluated based on the radius of curvature of a circle fitted to the needle centerline and on the ratio of the needle deflection from the straight path to the insertion depth. The needle moved forward inside the gelatin with a lag of 0.21 (single wire actuation) and 0.34 (double wire actuation) and achieved a maximum curvature of 0.0184 cm-1and a deflection-to insertion ratio of 0.0778. The proposed biologically inspired needle design is a relevant step towards the development of thin needles for percutaneous interventions. PMID- 29019461 TI - Translational Functional Neuroimaging in the Explanation of Depression. AB - Translation as a notion and procedure is deeply embodied in medical science and education. Translation includes the possibility to translate data across disciplines to improve diagnosis and treatment procedures. The evidence accumulated using translation serves as a vehicle for reification of medical diagnoses. There are promising, established post hoc correlations between the different types of clinical tools (interviews and inventories) and neuroscience. The various measures represent statistical correlations that must now be integrated into diagnostic standards and procedures but this, as a whole, is a step forward towards a better understanding of the mechanisms underlying psychopathology in general and depression in particular. Here, we focus on functional magnetic resonance imaging studies using a trans-disciplinary approach and attempt to establish bridges between the different fields. We will selectively highlight research areas such as imaging genetics, imaging immunology and multimodal imaging, as related to the diagnosis and management of depression. PMID- 29019465 TI - Facile and controllable electrochemical fabrication of cell-adhesive polypyrrole electrodes using pyrrole-RGD peptides. AB - Electrically conductive polymers, such as polypyrrole (PPy), have been widely used for the fabrication of various biosensors and tissue engineering scaffolds. For their biologically relevant applications, conductive biomaterials capable of intimate cellular interactions are highly desired. However, conventional methods to incorporate biomolecules into conductive polymers do not offer fine and easy control over the surface density of the biomolecules and/or their stability. We present a novel method to electrochemically immobilize cell-adhesive Arg-Gly-Asp (RGD) ligands on PPy electrode surfaces with a simple control over the peptide surface density by varying the electrodeposition time. Synthesized pyrrole GGGRGDS conjugates were electrochemically incorporated onto the surfaces of PPy coated electrodes. The electrochemical impedances of the RGD-grafted PPy electrodes were not significantly different from the unmodified PPy films. Time of-flight secondary-ion mass spectroscopy confirmed the presence of the RGD motif on the surface of the modified electrodes. In vitro studies with human mesenchymal stem cells (hMSCs) showed higher adhesion and faster proliferation of hMSCs on the PPy with a higher RGD density. This facile electrochemical modification of electrode surfaces allowed for a good control over the peptide surface density and cellular interactions and will benefit the fabrication of cell-interactive scaffolds or bio-electrodes. PMID- 29019466 TI - Facile, one-pot and scalable synthesis of highly emissive aqueous-based Ag,Ni:ZnCdS/ZnS core/shell quantum dots with high chemical and optical stability. AB - We report here on a one-pot, mild and low cost aqueous-based synthetic route for the preparation of colloidally stable and highly luminescent dual-doped Ag,Ni:ZnCdS/ZnS core/shell quantum dots (QDs). The pure dopant emission of the Ni doped core/shell QDs was found to be highly affected by the presence of a second dopant ion (Ag+). Results showed that the PL emission intensity increases while its peak position experiences an obvious blue shift with an increase in the content of Ag+ ions. Regarding the optical observations, we provide a simple scheme for absorption-recombination processes of the carriers through impurity centers. To obtain optimum conditions with a better emission characteristic, we also study the effect of different reaction parameters, such as refluxing temperature, the pH of the core and shell solution, molar ratio of the dopant ions (Ni:(Zn+Cd) and Ag:(Zn+Cd)), and concentration of the core and shell precursors. Nonetheless, the most effective parameter is the presence of the ZnS shell in a suitable amount to eliminate surface trap states and enhance their emission intensity. It can also improve the bio-compatibility of the prepared QDs by restricting the Cd2+ toxic ions inside the core of the QDs. The present suggested route also revealed the remarkable optical and chemical stability of the colloidal QDs which establishes them as a decent kind of nano-scale structure for light emitting applications, especially in biological technologies. The suggested process also has the potential to be scaled-up while maintaining the emission characteristics and structural quality necessary for industrial applications in optoelectronic devices. PMID- 29019467 TI - Online adaptive neural control of a robotic lower limb prosthesis. AB - OBJECTIVE: The purpose of this study was to develop and evaluate an adaptive intent recognition algorithm that continuously learns to incorporate a lower limb amputee's neural information (acquired via electromyography (EMG)) as they ambulate with a robotic leg prosthesis. APPROACH: We present a powered lower limb prosthesis that was configured to acquire the user's neural information and kinetic/kinematic information from embedded mechanical sensors, and identify and respond to the user's intent. We conducted an experiment with eight transfemoral amputees over multiple days. EMG and mechanical sensor data were collected while subjects using a powered knee/ankle prosthesis completed various ambulation activities such as walking on level ground, stairs, and ramps. Our adaptive intent recognition algorithm automatically transitioned the prosthesis into the different locomotion modes and continuously updated the user's model of neural data during ambulation. MAIN RESULTS: Our proposed algorithm accurately and consistently identified the user's intent over multiple days, despite changing neural signals. The algorithm incorporated 96.31% [0.91%] (mean, [standard error]) of neural information across multiple experimental sessions, and outperformed non-adaptive versions of our algorithm-with a 6.66% [3.16%] relative decrease in error rate. SIGNIFICANCE: This study demonstrates that our adaptive intent recognition algorithm enables incorporation of neural information over long periods of use, allowing assistive robotic devices to accurately respond to the user's intent with low error rates. PMID- 29019468 TI - Silver and gold nanoparticles in nanometric confined templates: synthesis and alloying within the anisotropic pores of oblique angle deposited films. AB - In this work we have developed an infiltration methodology to incorporate metal nanoparticles (NPs) of controlled size and shape into the open voids available in oblique angle deposited thin films. These NPs exhibited well-defined surface plasmon resonances (SPRs). The nanometric confined space provided by their porous microstructure has been used as a template for the growth of anisotropic NPs with interesting SPR properties. The fabrication methodology has been applied for the preparation of films with embedded Ag and Au NPs with two associated plasmon resonance features that developed a dichroic behaviour when examined with linearly polarized light. A confined alloying process was induced by near IR nanosecond laser irradiation yielding bimetallic NPs with SPR features covering a large zone of the electromagnetic spectrum. The possibilities of the method for the tailored fabrication of a wide range colour palette based on SPR features are highlighted. PMID- 29019469 TI - Genetic origin, admixture and population history of aurochs (Bos primigenius) and primitive European cattle. AB - This corrects the article DOI: 10.1038/hdy.2016.79. PMID- 29019470 TI - Progress in the management of neonatal sepsis: the importance of a consensus definition. PMID- 29019473 TI - Systematic Mapping of Pressure Pain Thresholds of the Masseter and Temporalis Muscles and Assessment of Their Diversity Through the Novel Application of Entropy. AB - AIMS: To assess the diversity of pressure pain thresholds (PPTs) within the masseter and temporalis muscles by using the novel concept of entropy and to assess the differences in PPT scores between different sites of the masseter and temporalis muscles. METHODS: In this randomized, single-blinded study, the left and right masseter and temporalis muscles of 14 healthy volunteers were divided into 15 sites each, and the PPT was assessed for each of these sites. PPT assessments were performed in two different sessions. Entropy and center of gravity (COG) values were calculated for the PPTs of each muscle. Repeated measures analysis of variance was used to assess differences between muscles, sides, and sites for PPT, entropy, and COG scores. RESULTS: The main findings were: (1) PPT scores varied significantly between the masseter and temporalis muscles and within each of these muscles; (2) entropy values of PPT scores were not different between the masseter and temporalis muscles; and (3) COG values of PPT scores varied statistically, but these changes do not seem to be clinically relevant. CONCLUSION: The results of this study suggest that the anatomical layout of the masseter and temporalis muscles has implications for mechanical pain sensitivity and that areas have different sensitivities within these muscles. Furthermore, reference values for the entropy of PPTs in healthy individuals have been estimated, and comparing these values with those of patients with muscle-related pain conditions can provide quantitative information about the spatial heterogeneity of mechanical pain sensitivity, which may be a valuable clinical outcome measure. PMID- 29019471 TI - Infantile hemangioma: factors causing recurrence after propranolol treatment. AB - BackgroundPropranolol is the first-choice treatment for severe infantile hemangioma (IH). However, 10- 30% of lesions relapse after propranolol treatment. The mechanisms underlying IH recurrence after propranolol treatment have not been completely elucidated.MethodsThis study combined an examination of hemodynamic changes with research regarding hemangioma stem cells (hscs) with differentially expressed microRNAs (miRNAs) to identify the factors affecting IH recurrence after propranolol treatment. Hemodynamic changes were monitored in 21 recurrent cases using high-frequency color Doppler ultrasound, and hscs were treated with different concentrations of propranolol. The levels of differentially expressed miRNAs and the activity of related pathways were then compared between 18 recurrent and 20 non-recurrent IH cases.ResultsDuring treatment, lesion depth and vessel density decreased, and the lesion resistance index increased. Obvious lesions and vessel signals were observed in recurrent cases compared with non recurrent cases. Propranolol effectively inhibited hscs proliferation. Twenty-two differentially expressed miRNAs were found in the recurrent group compared with the non-recurrent group.ConclusionRecurrence may be attributed to a combination of events. Serum biomarkers and drug treatments for IH recurrence must be studied further. PMID- 29019474 TI - Are Pain-Related Temporomandibular Disorders the Product of an Interaction Between Psychological Factors and Self-Reported Bruxism? AB - AIMS: To investigate whether pain-related temporomandibular disorders (TMD) are the product of an interaction between psychological factors and self-reported bruxism activities. METHODS: Patients referred to a specialized clinic for complaints of orofacial pain and dysfunction completed a digital questionnaire prior to the first clinical visit. The patient sample was then split into a case group consisting of 268 patients diagnosed with TMD pain according to the Diagnostic Criteria for Temporomandibular Disorders (85.8% women; mean +/- standard deviation [SD] age = 40.1 +/- 14.5 years) and a control group consisting of 254 patients without any pain in the orofacial area (50.8% women; 46.9 +/- 13.6 years). The possible moderating roles of six psychological factors (depression, somatic symptoms, anxiety, stress, optimism, and prior psychological treatment) on the relationship between self-reported bruxism and the clinical presence of TMD pain were examined. RESULTS: Patients with TMD pain reported significantly more bruxism than patients without any report of orofacial pain. Furthermore, bruxism intensity was associated with a variety of psychological factors; however, there were no significant interactions between any of the psychological factors and bruxism with respect to the clinical presence of TMD pain. CONCLUSION: These findings do not support the view that the effect of bruxism on TMD pain is stronger in patients who experience higher levels of psychological distress compared to those with lower levels of distress. PMID- 29019472 TI - Microbiological monitoring of continuous positive airway pressure and resuscitation equipment in very-low birth weight infants. AB - BackgroundTo investigate the colonization of respiratory equipment and the rate of respiratory infections of very-low birth weight (VLBW) infants.MethodsThe prospective study includes 26 VLBW infants on continuous airway pressure (CPAP) from September until December 2012. Swabs from respiratory equipment and colonization/infections were evaluated.ResultsA total of 603 swabs was cultured with 298 isolates; 59% of cultures from CPAP equipment (n=337; 95% confidence interval (CI; 54;64)) and 19% from ambu bags (n=51; 95% CI (14;24)) were positive. Overall, 181/201 CPAP prongs and masks hosted 221 microorganisms. Colonization on days 3 and 7 were 93% and 87%, respectively, with an increase in pathogens and a decrease in skin flora (79% vs. 68%). Comparing the 58 paired swab results from days 3 and 7 showed an increase in Gram-negative bacteria (P=0.014). Eighteen infants had positive weekly screening results, with similar colonization of CPAP equipment, dominated by Enterobacteriacae. Pneumonia was diagnosed in two infants.ConclusionOf the CPAP equipment close to the patient, 90% was colonized with microorganisms increasing during 1 week of CPAP. The pathogens were dominated by gastrointestinal bacteria, and persisted over weeks. Frequent cleaning did not prevent pneumonia, although pneumonia rates were rare. PMID- 29019475 TI - Orofacial Pain Associated with Vasospastic Angina: A Case Report. AB - The primary symptom of ischemic heart disease is typically chest pain, but in some cases, this pain may radiate to the maxillofacial region. This article describes the case of a 44-year-old man with orofacial pain of cardiac origin. The patient was suspected to be suffering from cardiac disease by the oral and maxillofacial surgeon and was referred to a cardiologist, where he received a heart examination. The patient was diagnosed by means of cardiac catheterization as having coronary spastic angina. During catheterization, intracoronary ergonovine maleate induced orofacial pain that was almost the same in character and intensity as the patient's first episode. The orofacial pain was considered to be telalgia from coronary spastic angina. The patient started medication on the same day as the diagnosis. There was no recurrence of any symptoms. These findings indicate that in such cases, the dentist may contribute to identifying ischemic heart disease and should refer the patient to a cardiologist. PMID- 29019476 TI - Parenting a Child with Juvenile Idiopathic Arthritis, Orofacial Pain, and Dysfunction: A Qualitative Study. AB - AIMS: To deepen knowledge of how parents of children diagnosed with juvenile idiopathic arthritis (JIA) perceive the orofacial manifestations of the disease, its treatments, and their encounters with dental care providers. METHODS: A total of 15 interviews with parents of JIA patients (3 to 16 years old) with orofacial pain were analyzed according to classic grounded theory. RESULTS: The main problem was identified as controlling an unpredictable life situation that includes a child with JIA. To solve this main problem, the parent was trying to comprehend, help, and speak for the child with disability, a solution that permeated their life situation. This was therefore identified as the core category, and the other categories (ie, ways parents responded to their situation) were reflecting on and re-evaluating the life situation, monitoring the child's symptoms and treatments, adapting everyday routines, seeking doctors and information, influencing school and society, and managing job and family finances. The main problem and the various categories formed a model reflecting how parents of children diagnosed with JIA act and think. CONCLUSION: It is extremely important for caregivers to understand the complexity of the life situation for parents whose children have been diagnosed with JIA. They must facilitate the parent's understanding of how this disease can influence the orofacial area and day-to-day care. PMID- 29019477 TI - Comparing Axis II Scores According to the RDC/TMD and DC/TMD in Israeli Patients. AB - AIMS: To use the Symptom Checklist-90-Revised (SCL-90-R)-based instruments of the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) and the Primary Care Evaluation of Mental Disorders (PRIME-MD)-based instruments of the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) in order to compare these Axis II scores in temporomandibular disorder (TMD) patients. METHODS: Demographic and socioeconomic data, Axis I diagnoses, and Axis II evaluations (depression, nonspecific physical symptoms, anxiety, and Graded Chronic Pain Scale [GCPS]) were compared between two groups of patients-142 TMD patients diagnosed according to the RDC/TMD (RDC group) and 157 TMD patients diagnosed according to the DC/TMD (DC group). Pearson's chi-square test, Fisher's exact test, and Mann-Whitney test were used, and P values were adjusted for multiple comparisons. RESULTS: The prevalences of severe depression, nonspecific physical symptoms, and anxiety were significantly lower in the DC group than in the RDC group, with no differences between groups for Axis I diagnoses, characteristic pain intensity (CPI), or GCPS. CONCLUSION: Within the limitations of this study, the present findings reveal differences in the presence of severe depression, nonspecific physical symptoms, and anxiety between the RDC and DC groups. The differences may reflect the cut-off scores of the SCL-90-R and the PRIME-MD tools. PMID- 29019478 TI - Engineering highly swellable dual-responsive protein-based injectable hydrogels: the effects of molecular structure and composition in vivo. AB - Stimuli-responsive hydrogels, known as smart hydrogels, are three-dimensional amphiphilic or hydrophilic polymer networks that are able to change their volume or phase, and other properties, including viscosity, structure, and dimension, in response to changes in pH, temperature, and magnetic or electric field. Highly swellable, dual-responsive bovine serum albumin (BSA)-based injectable hydrogels are prepared here by the chemical conjugation of pH- and temperature-responsive oligo(sulfamethazine acrylate-co-N-isopropylacrylamide) (oligo(SMA-co-NIPAM)) copolymers on the surface of BSA through carbodiimide-mediated chemistry. The pH- and temperature-responsive oligomer-bearing BSA conjugates show rapid sol-to-gel phase transition properties. Specifically, the free-flowing conjugates at high pH (pH 8.4, 23 degrees C) are transformed to a viscoelastic gel under physiological conditions (pH 7.4, 37 degrees C). The swelling ratio, gel strength, and pore size of the BSA hydrogel were tuned by altering the conjugation ratio of the oligo(SMA-co-NIPAM) copolymers of various lengths and compositions to BSA. Subcutaneously administered BSA conjugate sols into the dorsal region of Sprague Dawley rats formed an in situ gel. When the oligo(NIPAM) content in the hydrogel was high, the degradation rate of BSA hydrogels was remarkably slow, and two weeks after in vivo administration, the hydrogels with high oligo(NIPAM) had swollen more than 4-fold. An in vivo biodegradation study demonstrated that no necrosis or hemorrhage was observed in the tissues with the hydrogels. The concurrent stimuli-responsivity under physiological conditions and high elasticity suggest that these smart hydrogels may open a new avenue for hydrogel applications. PMID- 29019479 TI - Facile insertion of a cyclic alkyl(amino) carbene carbon into the B-B bond of diboron(4) reagents. AB - We report herein the room temperature insertion of the carbene carbon atom of the cyclic (alkyl)(amino) carbene cAACMe into the B-B single bonds of the diboron(4) compounds B2pin2, B2cat2, B2neop2, and B2eg2 (pin = pinacolato, cat = catecholato, neop = neopentylglycolato, eg = ethyleneglycolato). PMID- 29019481 TI - Protein metalation by metal-based drugs: X-ray crystallography and mass spectrometry studies. AB - The combined use of X-ray crystallography and mass spectrometry represents a valuable strategy to investigate and characterize protein metalation induced by anticancer metal-based drugs. Here, we summarize a series of significant results recently obtained in our laboratories upon the examination of the structures of several adducts of proteins with representative metallodrugs (mostly containing ruthenium, gold and platinum). The general mechanisms of protein metalation that emerge from a careful comparative analysis of these structures are illustrated and their mechanistic implications are discussed. Possible directions for future work in the field are delineated. PMID- 29019480 TI - Design and development of polysaccharide hemostatic materials and their hemostatic mechanism. AB - The formation of stable blood clots or hemostasis is essential to prevent major blood loss and death from excessive bleeding. However, the body's own coagulation process is not able to accomplish timely hemostasis without the assistance of hemostatic agents. For developing novel topical hemostatic agents, tissue adhesives and sealants, it is necessary to understand the coagulation process and the hemostasis mechanism of different materials. Among hemostatic materials, polysaccharides are naturally derived polymers having excellent biodegradable and biocompatible properties. This review provides an overview of polysaccharide based hemostatic materials and agents, including their advantages and drawbacks in hemostatic applications. Furthermore, polysaccharide-based hemostatic materials with anti-microbial and healing functions are also introduced. PMID- 29019482 TI - Novel poly(vinyl alcohol)-based amphiphilic nanogels by non-covalent boric acid crosslinking of polymeric micelles. AB - In this work, we report a new type of poly(vinyl alcohol)-g-poly(N isopropylacrylamide) (PVA-g-PNiPAAm) amphiphilic nanogel produced by the non covalent crosslinking of PVA polyol domains in preformed polymeric micelles with boric acid. The nanomaterials showed sizes in the 100-250 nm range (DLS) and a spherical morphology (HR-SEM). We demonstrated that the size of the polymeric micelles could be fine-tuned by changing the concentration (and the aggregation pattern) of the polymeric amphiphile in water. Upon crosslinking, the polymeric micelles turned into physically stable amphiphilic nanogels that displayed both size and size distribution similar to the micellar precursor for up to two weeks, even under disfavored conditions of concentration and temperature that, in the case of non-crosslinked counterparts, resulted in quick disassembly. In addition, we show for the first time the feasibility of spray-drying technology to consolidate the 3D network formed between PVA and boric acid and to produce stable powders that can be reconstituted upon use at any desired concentration. Moreover, the formation of a borated surface conferred the nanogels with good mucoadhesiveness in vitro. Finally, these novel nanomaterials showed optimal cell compatibility in a model of the intestinal epithelium, the Caco2 cell line. Overall results demonstrate the unprecedented versatility of the proposed modular approach and opens completely new horizons in the application of polymeric micelles and other self-assembled polymeric nanomaterials in diagnostics and therapeutics. PMID- 29019483 TI - Large irradiation doses can improve the fast neutron/gamma discriminating capability of plastic scintillators. AB - When new materials appear as potential alternatives for radiation detection, several criteria have to be fulfilled. The one presented herein is the response variation to large irradiation doses of neutron/gamma discriminating plastic scintillators. Thus, several samples were exposed to high gamma doses reaching 10 kGy. They were characterized in terms of gamma spectrometry and fast neutron/gamma discrimination, prior to and after irradiation. Results show an unexpected increase of the figure of merit (FoM), which is the numerical value for n/gamma discrimination performances. An in-depth investigation evaluates the physicochemical impact of such large doses within the material. The characterization includes photophysics, radiation/matter interaction and chemical analyses (EPR, 1H NMR, fluorescence spectroscopy and HRMS). PMID- 29019484 TI - Thermoelectric properties of Se and Zn/Cd/Sn double substituted Co4Sb12 skutterudite compounds. AB - Double-doped skutterudite Co4Sb12 compounds are reported as a good n-type thermoelectric system which operate in the mid-temperature range. Instead of filling the skutterudite phase to minimize the thermal conductivity, it is proposed to induce disorder in the pnicogen rings by the substitution of Zn/Cd/Sn and Se. Structural analyses of the prepared compounds were carried out by Rietveld refinement process. The compounds show overall reduction in thermal conductivity, particularly the lattice part. Since vibration modes of heat carrying phonons predominantly fall within the frequency range of the pnicogen rings, double substitutions on those pnicogen rings are particularly helpful in distracting the thermal transport. As larger mass difference and strain fluctuations can more efficiently scatter the heat-carrying phonons through short mean free path, it drastically restrains the thermal transport of the compounds, and this effect has been successfully demonstrated using the Debye-Callaway Klemens model. Smooth electrical transport behavior is observed in all the samples and the power factor values are quite comparable to reported values. Phonon scattering mechanism and local distortion in the structure of the compounds is also evaluated by Raman analysis. Collectively, a high peak ZT of ~0.7 and ~0.65 at 673 K is obtained for Co4Sb11.86Se0.1Zn0.04 and Co4Sb11.86Se0.1Sn0.04 compounds which shows more than 50% enhancement relative to the pristine Co4Sb12 system. PMID- 29019485 TI - Dynamics theory for molecular liquids based on an interaction site model. AB - Dynamics theories for molecular liquids based on an interaction site model have been developed over the past few decades and proved to be powerful tools to investigate various dynamical phenomena. In many of these theories, equations of time correlation functions are formulated by using the Zwanzig-Mori projection operator. Since algebriac equations are directly treated in these statistical mechanical approaches, the obtained dynamical properties are essentially free from statistical error. This perspective presents the theoretical framework of such theories and their applications, including visualization of diffusion processes, collective excitations, solvation dynamics, transport properties, and diffusion controlled reactions. PMID- 29019488 TI - Fluorescent chemosensors: the past, present and future. AB - Fluorescent chemosensors for ions and neutral analytes have been widely applied in many diverse fields such as biology, physiology, pharmacology, and environmental sciences. The field of fluorescent chemosensors has been in existence for about 150 years. In this time, a large range of fluorescent chemosensors have been established for the detection of biologically and/or environmentally important species. Despite the progress made in this field, several problems and challenges still exist. This tutorial review introduces the history and provides a general overview of the development in the research of fluorescent sensors, often referred to as chemosensors. This will be achieved by highlighting some pioneering and representative works from about 40 groups in the world that have made substantial contributions to this field. The basic principles involved in the design of chemosensors for specific analytes, problems and challenges in the field as well as possible future research directions are covered. The application of chemosensors in various established and emerging biotechnologies, is very bright. PMID- 29019493 TI - Large-scale metal nanoelectrode arrays based on printed nanowire lithography for nanowire complementary inverters. AB - Nanowire (NW) complementary inverters based on NW channels and NW electrodes are a promising core logic unit of future subminiature, high density and textile-type configured electronic circuits. However, existing approaches based on short NWs (<150 MUm) or non-woven nanofibers cannot provide precisely-coordinated NW inverters due to the difficulty in the position and alignment control of each NW. In particular, the large-scale fabrication of highly-aligned metal nanoelectrode (NE) arrays with low resistivity is a challenging issue. Here, we developed large scale-aligned AgNE arrays with very low resistivity by using printed NW lithography, and then demonstrated NW complementary inverters by combining with direct-printed organic semiconducting NWs. The width of the AgNEs was controlled from 250 to 1000 nm; their resistivity was 2.6 MUOmega cm which is quite comparable with that of Ag films (1.6 MUOmega cm). We expect that this approach will facilitate advances in the large-scale fabrication of nanoelectronics which will be compatible with printed electronics. PMID- 29019494 TI - Relativistic DFT investigation of electronic structure effects arising from doping the Au25 nanocluster with transition metals. AB - We perform a theoretical investigation using density functional theory (DFT) and time-dependent DFT (TDDFT) on the doping of the Au25(SR)18-1 nanocluster with group IX transition metals (M = cobalt, rhodium and iridium). Different doping motifs, charge states and spin multiplicities were considered for the single-atom doped nanoclusters. Our results show that the interaction (or the lack of interaction) between the d-type energy levels that mainly originate from the dopant atom and the super-atomic levels plays an important role in the energetics, the electronic structure and the optical properties of the doped systems. The evaluated MAu24(SR)18q (q = -1, -3) systems favor an endohedral disposition of the doping atom typically in a singlet ground state, with either a 6- or 8-valence electron icosahedral core. For the sake of comparison, the role of the d energy levels in the electronic structure of a variety of doped Au25(SR)18-1 nanoclusters was investigated for dopant atoms from other families such as Cd, Ag and Pd. Finally, the effect of spin-orbit coupling (SOC) on the electronic structure and absorption spectra was determined. The information in this study regarding the relative energetics of the d-based and super-atom energy levels can be useful to extend our understanding of the preferred doping modes of different transition metals in protected gold nanoclusters. PMID- 29019495 TI - A novel visible light responsive nanosystem for cancer treatment. AB - A novel singlet-oxygen sensitive drug delivery nanocarrier able to release its cargo after exposure to visible (Vis) light from a common lamp is presented. This nanodevice is based on mesoporous silica nanoparticles (MSN) decorated with porphyrin-caps grafted via reactive oxygen species (ROS)-cleavable linkages. In the presence of Vis light porphyrin-nanocaps produce singlet oxygen molecules that break the sensitive-linker, which triggers pore uncapping and therefore allows the release of the entrapped cargo (topotecan, TOP). This new system takes advantage of the non-toxicity and greater penetration capacity of Vis radiation and a double antitumor effect due to the drug release and the ROS production. In vitro tests with HOS osteosarcoma cancer cells reveal that TOP is able to be released in a controlled fashion inside the tumor cells. This research work constitutes a proof of concept that opens up promising expectations in the search for new alternatives for the treatment of cancer. PMID- 29019496 TI - Mechanochemically prepared SrFCl nanophosphor co-doped with Yb3+ and Er3+ for detecting ionizing radiation by upconversion luminescence. AB - We report a novel method for detecting ionizing radiation by employing the phenomenon of upconversion luminescence. Nanocrystalline SrFCl:Yb3+/Er3+ was prepared by ball-milling and characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The photoluminescence properties of nanocrystalline SrFCl:Yb3+, SrFCl:Er3+ and SrFCl:Yb3+/Er3+ before and after X-irradiation were investigated. The results demonstrate that both Yb3+ and Er3+ ions in the SrFCl host are reduced to their divalent state upon X-ray exposure. Under 980 nm infrared excitation, SrFCl:Yb3+/Er3+ nanocrystals displayed efficient upconversion luminescence. The upconversion luminescence intensity gradually decreased with increasing X irradiation in a double exponential fashion with rate constants of k1 = 0.08 Gy-1 and k2 = 0.01 Gy-1. In comparison with other X-ray storage phosphors, the present system shows a much higher stability of stored information since it is not subject to photobleaching in the read-out process. This is the first report on detecting ionizing radiation by upconversion luminescence, with the potential for improved read-out performance over traditional storage phosphors. Possible applications of the present phosphor include bioimaging and in vivo cell-level X ray dose monitoring. PMID- 29019497 TI - TEM nano-Moire evaluation for an invisible lattice structure near the grain interface. AB - Moire technique is a powerful, important and effective tool for scientific research, from the nano-scale to the macro-scale, which is essentially the interference between two or more periodic structures with a similar frequency. In this study, an inverse transmission electron microscopy (TEM) nano-Moire method has been proposed, for the first time, to reconstruct an invisible lattice structure near the grain interface, where only one kind of lattice structure and Moire fringe were visible in a high resolution TEM (HRTEM) image simultaneously. The inversion process was performed in detail. Three rules were put forward to ensure the uniqueness of the inversion result. The HRTEM image of a top coat/thermally grown oxide interface in a thermal barrier coating (TBC) structure was observed with coexisting visible lattice and Moire fringes. Using the inverse TEM nano-Moire method, the invisible lower layer lattice was inversed and a 3 dimensional structure near the interface was also reconstructed to some degree. The real strain field of oriented invisible and visible lattices and the relative strain field of the Moire fringe in the grain and near the grain boundary were obtained simultaneously through the subset geometric phase analysis method. The possible failure mechanism and position of the TBC spallation from the nano-scale to the micro-scale were discussed. PMID- 29019498 TI - Characterization of carboxylate nanoparticle adhesion with the fungal pathogen Candida albicans. AB - Candida albicans is the lead fungal pathogen of nosocomial bloodstream infections worldwide and has mortality rates of 43%. Nanoparticles have been identified as a means to improve medical outcomes for Candida infections, enabling sample concentration, serving as contrast agents for in vivo imaging, and delivering therapeutics. However, little is known about how nanoparticles interact with the fungal cell wall. In this report we used laser scanning confocal microscopy to examine the interaction of fluorescent polystyrene nanoparticles of specific surface chemistry and diameter with C. albicans and mutant strains deficient in various C. albicans surface proteins. Carboxylate-functionalized nanoparticles adsorbed mainly to the hyphae of wild-type C. albicans. The dissociative binding constant of the nanoparticles was ~150, ~30 and ~2.5 pM for 40, 100 nm and 200 nm diameter particles, respectively. A significant reduction in particle binding was observed with a Deltaals3 strain compared to wild-type strains, identifying the Als3 adhesin as the main mediator of this nanoparticle adhesion. In the absence of Als3, nanoparticles bound to germ tubes and yeast cells in a pattern resembling the localization of Als1, indicating Als1 also plays a role. Nanoparticle surface charge was shown to influence binding - positively charged amine-functionalized nanoparticles failed to bind to the hyphal cell wall. Binding of carboxylate-functionalized nanoparticles was observed in the presence of serum, though interactions were reduced. These observations show that Als3 and Als1 are important targets for nanoparticle-mediated diagnostics and therapeutics, and provide direction for optimal diameter and surface characteristics of nanoparticles that bind to the fungal cell wall. PMID- 29019492 TI - Self-assembling prodrugs. AB - Covalent modification of therapeutic compounds is a clinically proven strategy to devise prodrugs with enhanced treatment efficacies. This prodrug strategy relies on the modified drugs that possess advantageous pharmacokinetic properties and administration routes over their parent drug. Self-assembling prodrugs represent an emerging class of therapeutic agents capable of spontaneously associating into well-defined supramolecular nanostructures in aqueous solutions. The self assembly of prodrugs expands the functional space of conventional prodrug design, affording a possible pathway to more effective therapies as the assembled nanostructure possesses distinct physicochemical properties and interaction potentials that can be tailored to specific administration routes and disease treatment. In this review, we will discuss the various types of self-assembling prodrugs in development, providing an overview of the methods used to control their structure and function and, ultimately, our perspective on their current and future potential. PMID- 29019499 TI - Iodine induced 1-D lamellar self assembly in organic ionic crystals for solid state dye sensitized solar cells. AB - A novel saturated heterocyclic organic ionic crystal, piperidinium iodide (PiHI), is synthesized by a facile route and applied as a solid electrolyte in Dye Sensitized Solar Cells (ss-DSSCs). Upon addition of a small quantity of iodine, PiHI self-assembles into a 1D lamellar micro crystalline structure that shows anisotropic conductivity. The two-component PiHI was characterized by using electrochemical impedance spectroscopy, cyclic voltammetry, steady state voltammetry, FT-IR, and Raman spectroscopy. Wide angle X-ray diffraction (XRD) measurement confirms the presence of long range 1D lamellar channels that pave the way for the diffusion of the redox couple I-/I3- and exhibit high anisotropic conductivity. The ionic conductivity of 1D PiHI (with I2) aligned perpendicular to the electrode, sigma? (15.46 mS cm-1), is 1.5 times higher than that aligned parallel to the electrode sigma? = 10.32 mS cm-1. The ss-DSSC devices with these self-assembled ordered ionic crystals with a carbazole based sensitizer (SK1) achieved a power conversion efficiency (PCE) of 4.2% and 5.2% for ?al and ?ar arrangement, respectively. The reported PCEs are better than that obtained from a classical liquid electrolyte with SK1 sensitizers. The electron kinetics at various interfaces of ss-DSSC devices was evaluated using Electrochemical Impedance Spectroscopy (EIS) measurements. The presence of a saturated cyclic structure promotes close packing through H-bonding and electrostatic interactions, which make ss-DSSC devices more stable up to 600 h under illumination of 1 sun. PMID- 29019500 TI - I2-Catalyzed cross dehydrogenative coupling: rapid access to benzoxazinones and quinazolinones. AB - An efficient and applicable I2-catalyzed intramolecular dehydrogenative C-O/C-N coupling reaction via activating the C-H bond adjacent to the N atom has been developed to provide dozens of substituted benzoxazinones (31 examples) and quinazolinones (5 examples) in good to excellent yields (up to 98%). This one-pot methodology has significant advantages, including a metal-free process, broad substrate scope, high atom economy, and simple operation. This strategy goes through an iminium intermediate followed by nucleophilic attack to provide the desired products. PMID- 29019501 TI - Synthesis of anatase TiO2 with exposed (100) facets and enhanced electrorheological activity. AB - Herein, a simple hydrothermal method is employed to synthesize anatase TiO2 with dominant (100) facets, as a precursor, using titanate nanofibers derived from alkali treatment. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) are carried out to confirm the surface morphology and phase structure of the TiO2 product. The formation mechanism of TiO2 enclosed by (100) and (101) facets is deduced to be the selective adsorption of OH- on the (100) facets of anatase TiO2. Electroheological (ER) experiments indicate that the tetragonal-facet-rod anatase TiO2 with exposed (100) facets exhibits an excellent ER performance with a high ER efficiency of up to 52.5, which results from the anisotropy of its special morphology. In addition, the effect of shape on its dielectric property is investigated via broadband dielectric spectroscopy. PMID- 29019503 TI - Carrier scattering in quasi-free standing graphene on hexagonal boron nitride. AB - Graphene, a two-dimensional material with a honeycomb lattice, has been promoted as a next generation material because of its ultrafast charge carriers and superior electrical properties. Hexagonal boron nitride (h-BN) is an insulator explored as an ideal substrate for graphene with lattice-matching. Using raido frequency (RF) transmission measurement which provides specific characteristics of carrier scattering in a device, we profoundly investigated the electrical properties of quasi-free standing graphene on h-BN. RF devices with graphene supported and encapsulated with h-BN were fabricated to analyze the RF signal at low temperatures from 100 to 300 K. We demonstrated the carrier behavior in graphene with thermally excited carriers and acoustic photon scattering according to heat energy. Both h-BN supported and encapsulated graphene showed a significant enhancement in RF transmission, which is close to a gold interconnector. Our device with graphene on h-BN exhibited concealed nonlinear characteristics at a specific temperature of 180 K due to the internal effects of acoustic phonon scattering, while a usual device with graphene on SiO2/Si provided a linear variation. To anticipate the potential for electronic applications, the electrical circuit properties such as impedance, resistance, and inductance were extracted from the results of RF measurement. PMID- 29019504 TI - Synthesis of functionalized imidazolidine-2-thiones via NHC/base-promoted aza benzoin/aza-acetalization domino reactions. AB - A strategy for the synthesis of biologically relevant 5-hydroxy-imidazolidine-2 thione derivatives is presented. A novel class of alpha-sulfonylamines have been suitably prepared (46-81% yield) as precursors of formal benzylidenethiourea acceptors; these are generated in situ and intercepted by N-heterocyclic carbene (NHC)-activated aldehydes affording open-chain aza-benzoin-type adducts, which in turn undergo an intramolecular aza-acetalization reaction in a one-pot fashion. A thiazolium salt/triethylamine couple proved to be the more effective system to trigger the domino sequence giving the target heterocycles in good yields (45 97%) and diastereoselectivities (up to 99 : 1 dr). The multigram scale synthesis and elaboration of a selected 5-hydroxy-imidazolidine-2-thione compound is also described. PMID- 29019505 TI - Insights into the growth mechanism of REF3 (RE = La-Lu, Y) nanocrystals: hexagonal and/or orthorhombic. AB - The synthesis of REF3 (RE = La-Lu, Y) nanocrystals with controlled phase structures has so far remained a challenge. Herein we have developed a one-for all synthetic procedure that allows the successful synthesis of REF3 nanocrystals in a controlled manner. Experimental results showed that the radius of RE ions determines the phase structure: pure hexagonal REF3 (RE = La-Eu), a mixture of hexagonal and orthorhombic REF3 (RE = Gd), and pure orthorhombic REF3 (RE = Tb Lu, Y) nanocrystals are obtained along with the decrease of the ionic radius. As Gd is positioned exactly in the middle of the lanthanides row, GdF3 nanocrystals were used as a model to further investigate how the molar ratio of F- : Gd3+, the doping of RE ions with different ionic radii, and the doping concentration of certain RE ions affects the crystal structure of the final product. PMID- 29019509 TI - Hydroxylation of anilides by engineered cytochrome P450BM3. AB - Biocatalytic direct monohydroxylation of anilides has been achieved on preparative scale using mutant cytochrome P450BM3 enzymes. Representative mono- and disubstituted N-trifluoromethanesulfonyl anilides are shown to be converted in most cases to the corresponding 4-hydroxy derivatives, with substituent hydroxylation also occurring in two cases. By mutation variation, it is possible to achieve selective hydroxylation of either ring- or side-chain sites. PMID- 29019510 TI - Free energy calculations for rings and chains formed by dipolar hard spheres. AB - We employ a method based on Monte Carlo grand-canonical simulations to precisely calculate partition functions of non-interacting chains and rings formed by dipolar hard spheres (DHS) at low temperature. The extended low temperature region offered by such cluster calculations, compared to what had been previously achieved with standard simulations, opens up the possibility of exploring a part of the DHS phase diagram which was inaccessible before. The reported results offer the unique opportunity of verifying well-established theoretical models based on the ideal gas of cluster approximation in order to clarify their range of validity. They also provide the basis for future studies in which cluster cluster interactions will be included. PMID- 29019511 TI - Acetylenic scaffolding with subphthalocyanines - synthetic scope and elucidation of electronic interactions in dimeric structures. AB - Boron subphthalocyanines (SubPcs) are powerful chromophoric heterocycles that can be synthetically modified at both axial and peripheral positions. Acetylenic scaffolding offers the possibility of building large, unsaturated carbon-rich frameworks that can exhibit excellent electron-accepting properties, and when combined with SubPcs it presents a convenient method for preparing interesting chromophore-acceptor architectures. Here we present synthetic methodologies for the post-functionalization of the relatively sensitive SubPc chromophore via acetylenic coupling reactions. By gentle AlCl3-mediated alkynylation at the axial boron position, we managed to anchor two SubPcs to the geminal positions of a tetraethynylethene (TEE) acceptor. Convenient conditions that allow for stepwise desilylations of trimethylsilyl (TMS) and triisopropylsilyl (TIPS) protected SubPc-decorated acetylenes using silver(i) fluoride were developed. The resulting terminal alkynes were successfully used as coupling partners in metal-catalyzed couplings, providing access to larger acetylenic SubPc scaffolds and multiple chromophore systems. Moreover, conditions allowing for the conversion of a terminal alkyne into an iodoalkyne in the presence of SubPc were developed, and the product was subjected to cross-coupling reactions affording unsymmetrical 1,3 butadiynes. The degree of interactions between two SubPc units as a function of the acetylenic bridge was studied by UV-Vis absorption spectroscopy and cyclic voltammetry. A TEE bridging unit was found to strongly influence the reductions and oxidations of the two SubPc units, while a more flexible bridge had no influence. PMID- 29019513 TI - Ultrathin beta-tellurium layers grown on highly oriented pyrolytic graphite by molecular-beam epitaxy. AB - Monolayer tellurium (Te) or tellurene has been suggested by a recent theory as a new two-dimensional (2D) system with great electronic and optoelectronic promises. Here we present an experimental study of epitaxial Te deposited on highly oriented pyrolytic graphite (HOPG) by molecular-beam epitaxy. Scanning tunneling microscopy of ultrathin layers of Te reveals rectangular surface cells with the cell size consistent with the theoretically predicted beta-tellurene, whereas for thicker films, the cell size is more consistent with that of the [101[combining macron]0] surface of the bulk Te crystal. Scanning tunneling spectroscopy measurements show that the films are semiconductors with the energy band gaps decreasing with increasing film thickness, and the gap narrowing occurs predominantly at the valence-band maximum (VBM). The latter is understood by strong coupling of states at the VBM but a weak coupling at conduction band minimum (CBM) as revealed by density functional theory calculations. PMID- 29019519 TI - Unusually aggressive immature neo-intimal hyperplasia causing in-stent restenosis. AB - This image illustrates a very unusual pattern of early and aggressive immature neo-intimal hyperplasia in a 52-year-old man with unstable angina, two months after deployment of a drug-eluting stent in the proximal left anterior descending artery. PMID- 29019518 TI - Prevalence and predictive value of electrocardiographic abnormalities in pulmonary hypertension: evidence from the Pan-African Pulmonary Hypertension Cohort (PAPUCO) study. AB - BACKGROUND: Pulmonary hypertension (PH) is prevalent in Africa and is still often diagnosed only at an advanced stage, therefore it is associated with poor quality of life and survival rates. In resource-limited settings, we assessed the diagnostic utility of standard 12-lead electrocardiograms (ECG) to detect abnormalities indicating PH. METHODS: Sixty-five patients diagnosed with PH were compared with 285 heart disease-free subjects. The prevalence and diagnostic performance of ECG features indicative of PH and right heart strain were calculated. RESULTS: Compared to the control group, all abnormalities were more frequent in the PH cohort where no patient had a completely normal ECG. The most prevalent (cases vs control) ECG abnormalities were: pathological Q wave in at least two contiguous peripheral leads (47.7 vs 6.7%), left ventricular hypertrophy (38.5 vs 9.8%) and p-pulmonale (36.9 vs 20.7%) (all p < 0.05). The sensitivity of ECG criteria for right heart strain ranged between 6.2 and 47.7%, while specificity ranged between 79.3 and 100%. Negative predictive value ranged between 81.5 and 88.9% and positive predictive value between 25 and 100%. Positive predictive value was lowest (25%) for right bundle branch block and QRS rightaxis deviation (>= 100 degrees ), and highest (100%) for QRS axis >= +100 degrees combined with R/S ratio in V1 >= 1 or R in V1 > 7 mm. CONCLUSION: When present, signs of PH on ECG strongly indicated disease, but a normal ECG cannot rule out disease. ECG patterns focusing on the R and S amplitude in V1 and right axis deviation had good specificity and negative predictive values for PH, and warrant further investigation with echocardiography. PMID- 29019520 TI - Feelings and perceptions of women recovering from anorexia nervosa regarding their eating behavior. AB - According to the phenomenological approach, observing a phenomenon through the perspective of those who lived it may be necessary to acquire fully comprehension of it. Therefore, to fully understand the eating behavior during anorexia nervosa and during its recovery, this study investigated individual perceptions and feelings of three women recovering from anorexia nervosa. This study is characterized as a qualitative research with phenomenological approach. The data were collected through interviews and analyzed following steps proposed by phenomenology researchers. During the anorexia nervosa experience, food restriction and irregular meal patterns were observed. Controlling food intake was associated with happiness. Guilt, anguish, sadness, fear and anger were associated with eating, and food was considered a villain. An obsessive thinking about food and a paradox between liking to eat and not wanting to eat were also observed. During recovery, it is important to have a more flexible eating behavior without negative feelings regarding food; however, feelings of guilty and fear were still detected. Perceptions about contact with nutritionists revealed the use of ineffective strategies. Although similarities were found in all reports, every woman had their own particular and singular experience. Rescuing their memories and experiences through their speech was important to fully understand and comprehend these personal experiences, and this complete understanding may enable health professionals to act more efficiently in the treatment of this complex phenomenon. PMID- 29019521 TI - [Postpartum depression: prevalence and associated factors]. AB - The aim was to identify the prevalence of postpartum depression and associated factors in women in a medium-sized city in Southern Brazil during 2013. Trained female interviewers applied a standardized questionnaire to all participants in the city's two maternity hospitals. The study analyzed demographic, socioeconomic, behavioral, social support, and disease characteristics. Screening for depression was done within the first 48 hours postpartum, using the Edinburgh Scale with a cutoff of >= 10. Multivariate analysis used Poisson regression with robust variance. Of the 2,687 women interviewed, 14% (95%CI: 12.9-15.6) were identified with depression. Factors such as previous depression, third-trimester sadness, and family history of depression were associated with increased risk of postpartum depression, as were younger maternal age and multiparity. Social support from the health team for the pregnant woman was an important protective factor, reducing the prevalence of postpartum depression by 23%. The results suggest the need for actions by health services for pregnant women in order to provide enhanced care during this delicate phase. PMID- 29019522 TI - [Regional inequalities in mortality from diabetes mellitus and access to health in Argentina]. AB - The aim of this study was to estimate the mortality burden according to major groups of causes, with a focus on diabetes mellitus, as well as differences according to the presence or absence of health coverage for Argentina as a whole and its regions. The study used the mortality database for individuals 30 years or older in 2009-2011, stratified by sex, age bracket, region, underlying cause of death, and health coverage. We calculated the mortality rates and years of life lost due to premature mortality (YLLs). The quality of mortality records in Argentina was unsatisfactory, due to the high proportion of garbage codes for deaths. The main results showed a preponderance of chronic non-communicable diseases in the mortality burden in all regions of Argentina. In the Northeast, one of the country's poorest regions, the burden of mortality was high for all groups of causes. The mortality rates and adjusted YLL rates for diabetes mellitus were highest in the Cuyo region. There were marked differences in adjusted YLL rates according to health coverage status. The study's results highlight the need to develop measures to decrease regional and socioeconomic inequalities identified by mortality differences in Argentina. PMID- 29019524 TI - [Budget impact of the incorporation of GeneXpert MTB/RIF for diagnosis of pulmonary tuberculosis from the perspective of the Brazilian Unified National Health System, Brazil, 2013-2017]. AB - The study aimed to estimate the budget impact of GeneXpert MTB/RIF for diagnosis of tuberculosis from the perspective of the Brazilian National Program for Tuberculosis Control, drawing on a static model using the epidemiological method, from 2013 to 2017. GeneXpert MTB/RIF was compared with two diagnostic sputum smear tests. The study used epidemiological, population, and cost data, exchange rates, and databases from the Brazilian Unified National Health System. Sensitivity analysis of scenarios was performed. Incorporation of GeneXpert MTB/RIF would cost BRL 147 million (roughly USD 45 million) in five years and would have an impact of 23 to 26% in the first two years and some 11% between 2015 and 2017. The results can support Brazilian and other Latin American health administrators in planning and managing the decision on incorporating the technology. PMID- 29019525 TI - The practice of reporting adverse events in a teaching hospital. AB - OBJECTIVE: Understanding the practice of reporting adverse events by health professionals. METHOD: A qualitative case study carried out in a teaching hospital with participants of the Patient Safety Center and the nursing team. The collection took place from May to December 2015, and was conducted through interviews, observation and documentary research to treat the data using Content Analysis. RESULTS: 31 professionals participated in the study. Three categories were elaborated: The practice of reporting adverse events; Barriers in the effective practice of notifications; The importance of reporting adverse events. CONCLUSION: Notification was permeated by gaps in knowledge, fear of punishment and informal communication, generating underreporting. It is necessary to improve the interaction between leaders and professionals, with an emphasis on communication and educational practice. PMID- 29019523 TI - Mental disorders and employment status in the Sao Paulo Metropolitan Area, Brazil: gender differences and use of health services. AB - Mental disorders are associated with employment status as significant predictors and as consequences of unemployment and early retirement. This study describes the estimates and associations of 12-month DSM-IV prevalence rates of mental disorders and use of health services with employment status by gender in the Sao Paulo Metropolitan Area, Brazil. Data from the Sao Paulo Megacity Mental Health Survey was analyzed (n = 5,037). This is a population-based study assessing the prevalence and determinants of mental disorders among adults, using the Composite International Diagnostic Interview. The associations were estimated by odds ratios obtained through binomial and multinomial logistic regression. This study demonstrates that having mental disorders, especially mood disorders, is associated with being inactive or unemployed among men and inactive among women, but only having a substance use disorder is associated with being unemployed among women. Among those with mental disorders, seeking health care services is less frequent within unemployed. PMID- 29019526 TI - The cost of transcatheter aortic valve implantation according to different access routes. AB - OBJECTIVE: Identifying the average direct cost of TAVI (Transcatheter Aortic Valve Implantation) for the different access routes. METHOD: This is a research with a quantitative, exploratory and descriptive approach carried out in a government teaching hospital in the state of Sao Paulo. RESULTS: The average direct cost of TAVI procedures by the access routes resulted in R$82,826.38 (transfemoral route), R$79,440.91 (transaortic route) and R$78,173.41 (transapical route). The transcatheter valve cost represented a percentage variation between 78.47% and 83.14% of the total cost of the procedure. The Kruskal-Wallis test was used and presented a statistically significant difference between the three access routes: p=0.008. The Bonferroni test showed a difference in the association between transfemoral and transapical routes, while no statistically significant difference was observed in association with the transaortic route. CONCLUSION: The results are important for formulating adequate funding policies for the hospital network and understanding the costs according to the route facilitates rationalizing resources in order for them to be guaranteed for patients who present surgical contraindication to the valve implant. PMID- 29019527 TI - Factors related to the perceived stigmatization of people living with HIV. AB - OBJECTIVE: Analyzing the factors related to perceived stigmatization of people living with HIV. METHOD: A cross-sectional study conducted from September of 2014 to December 2015 with users from a specialized service in Minas Gerais. Data were collected through individual instrument application, organized in Microsoft Office Excel(r) 2010 spreadsheets and processed on IBM(r) SPSS 23.0. Descriptive statistics and multiple linear regression method were used for data analysis, adopting statistical significance set at 5.0% (p<=0.05). The study development met research ethics standards. RESULTS: 258 users participated in the study. Most were males between 40 and 49 years of age, single, with low educational level and income. Being between 40 and 49 years of age and having been hospitalized for complications related to HIV were positively associated predictors to increased stigmatization; while not having comorbidities and not being aware of exposure to HIV were predictors associated to reduced stigmatization. CONCLUSION: Given these results, we highlight that stigmatization can have an impact on the lives of people living with HIV, strengthening their feelings of guilt and shame, which can lead to depression, social isolation and abandoning treatment and clinical follow-up. PMID- 29019528 TI - Children with type 1 Diabetes Mellitus: access to special immunobiological and child care. AB - OBJECTIVES: Identifying the use of child care situations, the vaccination situation and the reasons for non-vaccination, and characterizing whether mothers/guardians demonstrate notions about the right to special vaccines for children with type 1 Diabetes Mellitus. METHOD: A descriptive, cross-sectional study with analysis of quantitative data based on interviews with mothers/guardians, particularly regarding access to childcare and vaccination against influenza and pneumococcal 23-valent (PPSV). RESULTS: 47 mothers/guardians participated in the study. The participants reported using more specialized services to follow child health, and only a few used the child care of the basic health care regularly. There were incomplete vaccination schedules, delayed annual follow-ups, missing vaccination cards at the consultations, misinformation about the special character of the vaccination, as well as emphasis on the need of presenting a specific form to obtain the vaccination, resulting in discontinuation of health actions and missed opportunities for vaccination. CONCLUSION: Fragilities in child care and immunization actions require an increase of primary health care and of the care network, based on knowledge and the right to health in order to expand the evidence-based practice, access and comprehensiveness. PMID- 29019529 TI - Quality of life in patients with chronic wounds: magnitude of changes and predictive factors. AB - OBJECTIVE: To assess health-related quality of life, its predictors and magnitude of changes in health-related quality of life in patients with chronic wounds receiving specialized outpatient treatment. METHOD: Secondary, retrospective, descriptive, quantitative study with patients with chronic wounds from two specialized outpatient services in Brazil assessed through Ferrans & Powers Quality of Life Index-Wound Version, Visual Analog Pain Scale, Global Assessment Scale, Pressure Ulcer Scale for Healing, sociodemographic and clinical questionnaires at baseline and after 60 days of treatment. Data were analyzed by ANOVA, Spearman Coefficient, Mann-Whitney test and multivariate logistic regression. RESULTS: Twenty-seven patients participated in the study. The overall health-related quality of life scale, health and functioning subscale and socioeconomic subscale scores increased after 60 days of treatment compared to baseline. Pain reduction was a predictor of changes in overall health-related quality of life score as well as religious practice in the family subscale. 92.6% patients perceived moderate to extensive changes in health-related quality of life. CONCLUSION: there was improvement of health-related quality of life for the sample studied in the period; pain and religious practice have emerged as predictors of changes in health-related quality of life. PMID- 29019530 TI - Efficacy of prone position in acute respiratory distress syndrome: overview of systematic reviews. AB - OBJECTIVE: To identify and integrate the available scientific evidence related to the use of the prone position in patients with acute respiratory distress syndrome for the reduction of the outcome variable of mortality compared to the dorsal decubitus position. METHOD: Overview of systematic reviews or meta analyzes of randomized clinical trials. It included studies that evaluated the use of prone positioning in patients with acute respiratory distress syndrome published between 2014 and 2016. The AMSTAR tool was used to determine the methodological quality of studies. The GRADE system was used to establish the overall quality of evidence for the mortality outcome. RESULTS: From the search strategy, were retrieved seven relevant manuscripts of high methodological quality. CONCLUSION: Scientific evidence supports that combined use of protective ventilatory strategy and prone positioning for periods between 16 and 20 hours in patients with acute respiratory distress syndrome and PaO2/FiO2 ratio lower than 150 mm/Hg results in significant reduction of mortality rate. PMID- 29019531 TI - Development and evaluation of low-cost walker with trunk support for senior citizen. AB - OBJECTIVE: Develop and evaluate a low-cost walker with trunk support for senior citizens. METHOD: Two-stage descriptive study: development of a walker with trunk support and evaluation with fourth age senior citizens. RESULTS: Twenty-three fourth age senior citizens were selected. The evaluated criteria were the immediate influence of the walker on the static stabilometry with baropodometer and the evaluation of gait with accelerometers monitoring time and amplitude of the hip movement. There was a significant decrease in the body oscillation of senior citizens with the use of the developed walker, and there were changes in the joint amplitudes of the hip, but they were not significant. CONCLUSION: Using low-cost materials, it was possible to develop and equipment that met resistance and effectiveness requirements. The walker interfered in the balance of the senior citizens, reducing significantly the static body oscillation. PMID- 29019532 TI - Are we ready for the implantation of the ERAS protocol? PMID- 29019533 TI - Overview of female breast cancer in northern Tocantins - Brazil. AB - OBJECTIVE: to evaluate the temporal variation of the percentages of female breast cancer in early and late stages and analyze socio-demographic variables associated with these stages. METHODS: study of secondary data performed between the years of 2000 and 2015 in the Araguaina Regional Hospital - Araguaina - TO - Brasil. RESULTS: breast cancer in advanced stages were diagnosed in 51.1% of the cases and at an early stage in 48.9%. There was no difference between the percentages of patients with early and late stages over the years. Women of race/black, illiterate and origin of the southeast of Para presented a higher percentage of late staging at diagnosis. CONCLUSIONS: most women was diagnosed with advanced disease; the time evolution of the proportion of cases (advanced/early) did not demonstrate variational changes over the years; association of the disease has been identified in advanced stage in women of race/black, illiterate and from the southeast of Para state. PMID- 29019534 TI - Evaluation of the quality of life of patients with primary hyperhidrosis submitted to videothoracoscopic sympathectomy. AB - OBJECTIVE: to evaluate the quality of life of patients undergoing video-assisted thoracoscopy for primary hyperhidrosis. METHODS: we evaluated the patients who underwent thoracoscopic sympathectomy to treat primary hyperhidrosis by the team of thoracic surgery at the University Hospital Gaffree and Guinle - UNIRIO between July 2004 and August 2013. It was applied a questionnaire about quality of life related to hyperhidrosis since preoperative period until one year after the surgery. RESULTS: one hundred twenty two patients answered the questionnaire, with a mean age of 25 years, 57% of whom were women. In relation to severity of primary hyperhidrosis, 83% of the patients reported as tolerable or somewhat tolerable associated with major limitation of quality of life, which it was poor or very poor in 82% of cases. Postoperative compensatory hyperhidrosis occurred in 78% of patients, but it was regarded as invisible or barely noticeable for 85% of these patients, classifying it as acceptable. In 15% of patients, the compensatory sweating was classified as disruptive. CONCLUSION: thoracoscopic sympathectomy improves the quality of life of patients with primary hyperhidrosis. The transitional compensatory hyperhidrosis occurred in most patients, but did not improve significantly the quality of life. PMID- 29019535 TI - What is the ideal working length for bridge plating osteosynthesis of a femoral shaft fracture? A multinational online survey evaluation. AB - OBJECTIVE: to evaluate how orthopedic surgeons in Latin America define the working length for distinct patterns of femoral shaft fracture. METHODS: a survey was developed presenting different options of working length in four femoral fracture patterns. The survey was submitted to the participants using Google Forms tool. The association between professional characteristics and medical management options according to each type of fracture was analyzed by Chi-square test, with 5% significance level. RESULTS: seven hundred and seven professionals from all Latin America answered the survey. The majority prefered a smaller working length for all situations presented in the study. There was a significant association between the main interest area and the medical preference for the management in fracture types AO 32-B3 and 32-C2 (p<0.05). Other professional characteristics had no significant association at the level of 5%. CONCLUSION: most of the study participants preferred constructions with smaller working length, representing approximately one-third of the total length of the plate, regardless of fracture pattern. There was a significant association between the main interest area (orthopedic trauma) and medical management options for fracture type AO 32-B3 and 32-C2. This can be attributed in part to the fact that these two types of fractures are considered, in the view of the authors, intermediate patterns in terms of strain. This study reinforces the importance of understanding the concept of working length, showing that its calculation remains more based on the surgeons' experience than grounded by strong biomechanical concepts governing the fracture healing process. PMID- 29019537 TI - Initial experience with negative-pressure wound therapy with instillation in complex wounds. AB - OBJECTIVE: to report the initial experience with Negative-Pressure Wound Therapy with instillation in infected or contaminated complex wounds. METHODS: the negative-pressure wound therapy with instillation used was V.A.C. Ulta with Veraflo instillation (Kinetic Concepts, Inc). The mode of operation was continuous with negative pressure set at 125 mmHg for two hours and instillation between the pauses. The instillation time was 20 minutes (contact time of the topical agent with the wound) and the instilled substance was 0.9% normal saline. After adequate preparation of the wound, it was covered with graft or flap. RESULTS: ten patients with complex or contaminated wounds were operated on. The mean number of NPWTi changes was 1.4, the mean number of surgeries was 2.4, the interval until complete wound coverage was 6.3 days, and the interval up to the time of discharge was 11.4 days. CONCLUSION: the comparison of the negative pressure wound therapy with instillation with two previous studies (historical control) evidenced a shorter hospitalization time, favoring TPNi. This study had an initial character, making it necessary to conduct a randomized and controlled trial to confirm the efficacy of this therapy and verify its cost-effectiveness. PMID- 29019536 TI - Trauma mechanism predicts the frequency and the severity of injuries in blunt trauma patients. AB - OBJECTIVE: to study the correlation of trauma mechanism with frequency and severity of injuries in blunt trauma patients. METHODS: retrospective analysis of trauma registry in a 15-month period was carried out. Trauma mechanism was classified into six types: occupants of four-wheeled vehicles involved in road traffic accidents (AUTO), pedestrians struck by road vehicles (PED), motorcyclists involved in road traffic accidents (MOTO), falls from height (FALL), physical assault with blunt instruments (ASSA) and falls on same level (FSL). Injuries with AIS>2 were considered severe. One-way ANOVA, Students t and Chi-square tests were used for statistical analysis, considering p<0.05 significant. RESULTS: trauma mechanism was classified by group for 3639 cases, comprising 337 (9.3%) AUTO, 855 (23.5%) PED, 924 (25.4%) MOTO, 455 (12.5%) FALL, 424 (11.7%) ASSA and 644 (17.7%) FSL. There was significant difference among groups when comparing the Revised Trauma Score (RTS), the Injury Severity Score (ISS) and the Abbreviated Injury Scale (AIS) of the head, thorax, abdomen and extremities (p<0.001). Severe injuries in the head and in the extremities were more frequent in PED patients (p<0.001). Severe injuries to the chest were more frequent in AUTO (p<0.001). Abdominal injuries were less frequent in FSL (p=0.004). Complex fractures of the pelvis and spine were more frequent in FALL (p<0.001). Lethality was greater in PED, followed by FALL and AUTO (p<0.001). CONCLUSION: trauma mechanism analysis predicted frequency and severity of injuries in blunt trauma patients. PMID- 29019538 TI - Video-thoracoscopic approach, without suture, of late thoracic esophageal perforations. AB - OBJECTIVES: to evaluate the use of video-thoracoscopy, in the treatment of late perforations of the thoracic esophagus, without suture or organ resection. METHODS: retrospective analysis of patients with late diagnosis (> 12 hours) of thoracic esophageal perforation treated by video-thoracoscopy, without suture or organ resection, over a 15-year period. RESULTS: sixteen patients were operated on, ten men and six women, aged between 48 and 66 years, with time between the diagnosis of the perforation and the surgery ranging from 16 to 26 hours. All patients underwent video-thoracoscopy, with pulmonary decortication, pleural loculations approach, opening of the mediastinal pleura near the perforation site and debridement of the devitalized tissues, followed by double drainage of the pleural cavity. No esophageal suture or resection was performed, and the patients evolved with complete closure of the lesions, without deaths. CONCLUSION: the video-thoracoscopic surgical approach was able to control pleural infection, pulmonary expansion and enable complete regeneration of the esophagus with late diagnosed perforation. PMID- 29019539 TI - Evaluation of the treatment of the hepatocarcinoma nodules in the patients in waiting list for liver transplant. AB - OBJECTIVE: to compare the outcome of liver transplantation for hepatocarcinoma in submitted or not to locoregional treatment and downstaging regarding survival and risk of recurrence in transplant waiting list patients. METHODS: retrospective study of patients with hepatocarcinoma undergoing liver transplantation in the metropolitan region of Sao Paulo, between January 2007 and December 2011, from a deceased donor. The sample consisted of 414 patients. Of these, 29 patients were included in the list by downstaging. The other 385 were submitted or not to locoregional treatment. RESULTS: the analysis of 414 medical records showed a predominance of male patients (79.5%) with average age of 56 years. Treatment of the lesions was performed in 56.4% of patients on the waiting list for transplant. The most commonly used method was chemoembolization (79%). The locoregional patients undergoing treatment had a significant reduction in nodule size greater (p<0.001). There was no statistical difference between groups with and without locoregional treatment (p=0.744) and on mortality among patients enrolled in the Milan criteria or downstaging (p=0.494). CONCLUSION: there was no difference in survival and recurrence rate associated with locoregional treatment. Patients included by downstaging process had comparable survival results to those previously classified as Milan/Brazil criteria. PMID- 29019540 TI - Comparative efficacy of immunohistochemical markers in surgical healing. AB - OBJECTIVE: to evaluate the efficacy of three immunohistochemical markers involved in the wound healing process. METHODS: experimental study of 40 Wistar rats of the markers metalloproteinases and matrix metalloproteinase 9 (MMP-9), beta transforming growth factor (TGF-beta) and myofibroblasts and smooth muscle actin alpha (alpha-MLA) markers, studied from fragments of surgical scar of abdominal incision involving skin, aponeurosis and peritoneum. The animals were divided into four subgroups of ten according to the day of death, scheduled in three, seven, 14 and 21 days. RESULTS: MMP-9 expression showed a progressive increase of its concentration, more evident from 7th to 14th days, varying the tissue immunoexpression between 2.65% and 11.50% . TGF- beta showed expression at high level on the 3rd day, fell in the 7th, rising again in the 14th, with a small decrease in the 21st day, varying the tissue immunoexpression between 0.03% and 2.92%. The alpha-AML presented levels with little variation and a slight increase, varying the tissue immunoexpression between 0.88% and 3.23%. CONCLUSION: MMP-9 presented as the best marker, followed by TGF-beta. However, alpha-AML was not a good indicator of the evolution of tissue repair. PMID- 29019541 TI - Laryngeal chondroradionecrosis following radiotherapy. AB - OBJECTIVE: to study larynx chondroradionecrosis related to radiotherapy and chemotherapy treatment and provide a treatment flowchart. METHODS: retrospective study with clinical data analysis of all larynx cancer patients admitted in a two tertiary hospital in a five years period. RESULTS: from 131 patients treated for larynx cancer, 28 underwent chemoradiotherapy with curative intent and three of them presented chondroradionecrosis. They were treated with hiperbaric oxigen therapy and surgical debridment following our flowchart, preserving the larynx in all. CONCLUSIONS: the incidence of chondroradionecrosis as a complication of chemoradiotherapy in our series was 10,7% and the treatment with hiperbaric oxigen therapy, based in our flowchart, was effective to control this complication. PMID- 29019542 TI - Surgical approach of hypertelorbitism in craniofrontonasal dysplasia. AB - OBJECTIVE: to present our experience in the hypertelorbitism surgical treatment in craniofrontonasal dysplasia. METHODS: retrospective analysis of craniofrontonasal dysplasia patients operated through orbital box osteotomy or facial bipartition between 1997 and 2015. Surgical data was obtained from medical records, complementary tests, photographs, and clinical interviews. Surgical results were classified based on the need for additional surgery and orbital relapse was calculated. RESULTS: seven female patients were included, of whom three (42.86%) underwent orbital box osteotomy and four (57.14%) underwent facial bipartition. There was orbital relapse in average of 3.71+/-3,73mm. Surgical result according to the need for further surgery was 2.43+/-0.53. CONCLUSION: surgical approach to hypertelorbitism in craniofrontonasal dysplasia should be individualized, respecting the age at surgery and preferences of patients, parents, and surgeons. PMID- 29019543 TI - Predictive factors of axillary metastasis in patients with breast cancer and positive sentinel lymph node biopsy. AB - OBJECTIVE: to evaluate the risk factors for the presence of non-sentinel axillary metastatic disease in patients with breast cancer and positive sentinel node biopsy. Methods: retrospective cross-sectional study of women with breast cancer operated at the Cancer Institute of Ceara between 2002 and 2012 and submitted to sentinel lymph node biopsy. RESULTS: Among 946 breast cancer patients, 331 underwent sentinel lymph node biopsy, which was positive in 83. These patients underwent axillary lymphadenectomy and 39 (46%) had metastases in other axillary lymph nodes. The variables that were significant for additional axillary disease included Ki67>14 (p=0.043), angiolymphatic invasion (p=0.01) and tumor size (p=0.027). No association was observed with estrogen, progesterone, tumor grade and Her-2 receptors. DISCUSSION: the presence of angiolymphatic invasion and tumor size have also been related to additional axillary metastasis in other studies. In addition to these variables, the same predictive effect was observed when we evaluated Ki67. The validation of these results may allow the customization of breast cancer treatment, which may reduce its morbidity. CONCLUSION: angiolymphatic invasion, tumor size (T3/T4) and Ki67>14 were factors predictive of axillary metastasis involvement in addition to the sentinel lymph node. PMID- 29019544 TI - Pathophysiological aspects of the low anterior resection syndrome for treatment of rectal cancer. AB - The number of patients with bowel dysfunction due to the treatment of rectal cancer has increased during the recent decades. Anatomical and functional disorders after the removal of the rectum are followed by increased stool frequency, urgency, multiple evacuations and flatus or stool incontinence characterizing the low anterior resection syndrome - LARS. The purpose of this article is to present a review of the literature on current concepts and pathophysiological aspects of bowel dysfunction after resection of rectal cancer. It is essential to understand these mechanisms for a better management of patients and recovery of their quality of life. PMID- 29019545 TI - A brief history of salivary gland surgery. AB - Salivary gland neoplasms are a relatively uncommon disease, with nearly one case per 100.000 adults estimated per year and an overall incidence of 1% of all neoplasms. The benign neoplasms are majority and the prognosis depends on the histologic type, grade, localization, soft tissue infiltration, regional and distant metastasis. The main treatment is surgery with caution to facial nerve in the major salivary glands, followed by radiotherapy and chemotherapy in selected cases. The objective of this review is to provide the lector an historic approach about salivary gland diseases treatment, with special attention to the parotid neoplasms and its peculiarities associated to those who studied these glands in their history course. PMID- 29019546 TI - Modified technique for percutaneous endoscopic gastrojejunostomy placement. AB - The placement of percutaneous endoscopic gastrojejunostomy (PEG-J) provides diet delivery beyond the angle of Treitz, and it is associated with decrease of complications related to gastroparesis, such as aspiration pneumonia. There are many different techniques to perform a PEG-J described in the literature, with variable degrees of technical success. In this article, we suggest modifications to the technique of PEG-J placement in order to reduce time of procedure and minimize the risk of technical failure. PMID- 29019547 TI - Erratum. AB - [This corrects the article doi: 10.1590/0100-69912017002012]. PMID- 29019548 TI - Noncontact three-dimensional evaluation of surface alterations and wear in NiTi endodontic instruments. AB - The aim of this study was to undertake a qualitative and quantitative assessment of nanoscale alterations and wear on the surfaces of nickel-titanium (NiTi) endodontic instruments, before and after use, through a high-resolution, noncontact, three-dimensional optical profiler, and to verify the accuracy of the evaluation method. Cutting blade surfaces of two different brands of NiTi endodontic instruments, Reciproc R25 (n = 5) and WaveOne Primary (n = 5), were examined and compared before and after two uses in simulated root canals made in clear resin blocks. The analyses were performed on three-dimensional images which were obtained from surface areas measuring 211 * 211 um, located 3 mm from their tips. The quantitative evaluation of the samples was conducted before and after the first and second usage, by the recordings of three amplitude parameters. The data were subjected to statistical analysis at a 5% level of significance. The results revealed statistically significant increases in the surface wear of both instruments groups after the second use. The presence of irregularities was found on the surface topography of all the instruments, before and after use. Regardless of the evaluation stage, most of the defects were observed in the WaveOne instruments. The three-dimensional technique was suitable and effective for the accurate investigation of the same surfaces of the instruments in different periods of time. PMID- 29019549 TI - Suppressor of cytokine signaling 1 expression during LPS-induced inflammation and bone loss in rats. AB - This study aimed to characterize the dynamics of suppressor of cytokine signaling (SOCS1) expression in a rat model of lipopolysaccharide-induced periodontitis. Wistar rats in the experimental groups were injected three times/week with LPS from Escherichia coli on the palatal aspect of the first molars, and control animals were injected with vehicle (phosphate-buffered saline). Animals were sacrificed 7, 15, and 30 days after the first injection to analyze inflammation (stereometric analysis), bone loss (macroscopic analysis), gene expression (qRT PCR), and protein expression/activation (Western blotting). The severity of inflammation and bone loss associated with LPS-induced periodontitis increased from day 7 to day 15, and it was sustained through day 30. Significant (p < 0.05) increases in SOCS1, RANKL, OPG, and IFN-gamma gene expression were observed in the experimental group versus the control group at day 15. SOCS1 protein expression and STAT1 and NF-kappaB activation were increased throughout the 30 day experimental period. Gingival tissues affected by experimental periodontitis express SOCS1, indicating that this protein may potentially downregulate signaling events involved in inflammatory reactions and bone loss and thus may play a relevant role in the development and progression of periodontal disease. PMID- 29019550 TI - Salivary stress biomarkers and anxiety symptoms in children with and without temporomandibular disorders. AB - The etiology of temporomandibular disorders (TMD), which are considered as a heterogeneous group of psychophysiological disturbances, remains a controversial issue in clinical dentistry. This study aimed to evaluate whether the salivary alpha-amylase (sAA), cortisol levels, and anxiety symptoms differ between children with and without TMD. Initially, 316 young subjects were screened in public schools (nonreferred sample); 76 subjects aged 7-14 years were selected and comprised the TMD and control groups with 38 subjects each matched by sex, age, and the presence/absence of sleep bruxism. Four saliva samples were collected: upon waking, 30 min and 1 h after awakening (fasting), and at night (at 8 PM) on 2 alternate days to examine the diurnal profiles of cortisol and sAA. Anxiety symptoms were screened using the Multidimensional Anxiety Scale for Children (MASC-Brazilian version). Shapiro-Wilk test, Student's t-test/Mann Whitney U test, and correlation tests were used for data analysis. No significant differences were observed in the salivary cortisol area under the curve (AUCG mean +/- SD = 90.22 +/- 63.36 * 94.21 +/- 63.13 ug/dL/min) and sAA AUCG (mean +/- SD = 2544.52 +/- 2142.00 * 2054.03 +/- 1046.89 U/mL/min) between the TMD and control groups, respectively (p > 0.05); however, the clinical groups differed in social anxiety domain (t = 3.759; CI = 2.609, 8.496), separation/panic (t = 2.243; CI = 0.309, 5.217), physical symptoms (U = 433.500), and MASC total score (t = -3.527; CI = -23.062, -6.412), with a power of the test >80% and large effect size (d = 0.80), with no significant correlation between the MASC total score, cortisol, and sAA levels. Although children with TMD scored higher in anxiety symptoms, no difference was observed in the salivary stress biomarkers between children with and without TMD. PMID- 29019551 TI - Caries experience and salivary aspects in individuals with fragile X syndrome. AB - Fragile X syndrome (FXS) is the most common cause of hereditary mental retardation, but studies on the oral health condition of these patients are rare. The aim of this study was to determine the experience of dental caries in individuals with FXS, by examining the saliva profile, oral hygiene, socioeconomic characteristics and use of controlled drugs in these patients. Dental health was estimated using the decayed, missing and filled teeth index (DMF-T) and sialometry, and the pH value and buffering capacity of the saliva, colony forming units of S. mutans (CFU/mL), visible biofilm index, and socioeconomic status were all examined. The sample, comprising 23 individuals, had an average age of 17.3 +/- 5.6 years, a DMF-T index of 5.5, a diminished salivary flow (78.3%), and a low (73.9%) saliva buffering capacity. Most (52.2%) individuals presented with a high abundance (CFU/mL) of S. mutans. The experience of caries was correlated with salivary parameters, poor oral hygiene, lower socioeconomic status and an increased count of S. mutans in saliva. PMID- 29019552 TI - Water sorption and solubility of bulk-fill composites polymerized with a third generation LED LCU. AB - The aim of this study was to compare the degree of water sorption and solubility in bulk-fills after curing with a polywave light source. A total of 120 disc shaped specimens (8 mm diameter; 4 mm depth) were prepared from three regular bulk-fill materials (X-tra Fil, Tetric N-Ceram Bulk Fill, SonicFill), and a control material (Filtek Z250), cured in 3 different modes (standard: 1000 mW/cm2 20 s; high power: 1400 mW/cm2-12 s; xtra power: 3200 mW/cm2-6 s) using a third generation light-emitting diode light curing unit. Water sorption and solubility levels of the specimens were measured according to the ISO 4049:2009 specification after storing in distilled water for 30 days. Data were analyzed using two-way ANOVA and Tukey's post-hoc test (p < 0.05). The Z250 sample exposed to high power presented a higher sorption compared to the X-tra Fil and SonicFill samples. In xtra power mode, the values of Z250 and SonicFill were similar to each other and higher compared to those of X-tra Fil. Only SonicFill exhibited significantly different sorption values depending on the curing mode, the highest of which was achieved when using the xtra power mode. The highest solubility values were obtained for SonicFill. No statistically significant differences were found among other groups. No significant correlation was detected between water sorption and solubility. The traditional composite group exhibited a higher water sorption values than the bulk-fills. The reduction in polymerization time significantly increased the sorption of SonicFill. SonicFill showed the highest water solubility value among the composites tested. PMID- 29019553 TI - BiodentineTM is cytocompatible with human primary osteoblasts. AB - Calcium silicate-based materials have been widely studied due to their resemblance to, and similar applicability of, mineral trioxide aggregate (MTA). Among these, BiodentineTM (BD) was specifically designed as a "dentin replacement" material for applications such as root perforations, apexification, treatment of resorptive lesions, and as a retrograde filling material. The present study aimed to assess the in vitro response of human primary osteoblasts to BD using MTA AngelusTM as a reference material, by simultaneously analyzing three different cell viability parameters, namely mitochondrial activity, membrane integrity, and cell density. BD and MTA extracts were prepared by incubation on culture media for 24 h or 42 days after mixing. Primary human osteoblasts were exposed to extracts for 24 h, at 37oC with 5% CO2, and cell viability was evaluated by the XTT, NRU, and CVDE assays. Both materials induced cell viability levels higher than 70% when extracted for 24 h. However, when cells were exposed to extracts with increased conditioning times, MTA presented significant cytotoxic effects (p < 0.05) in comparison to the control and MTA at 24 h. After 42 days, the XTT assay identified a significant reduction in cell viability by BD when compared to the control (p<0.05), despite the fact that levels above the 70% viability cutoff were attained for biocompatible materials. It can be concluded that BD is cytocompatible with human primary osteoblasts, indicating its adequacy in direct contact with bone tissues. PMID- 29019554 TI - TENSIOMETRIC ANALYSIS OF MESHES USED IN ABDOMINAL VENTRAL WALL DEFECTS IN RATS. AB - BACKGROUND: Among the various strategies to avoid exaggerated foreign body reaction in the treatment of hernias is the limitation of the amount of polypropylene or the use of absorbable material. AIM: To evaluate the healing of defects in the abdominal wall of rats, comparing microporous polypropylene, macroporous polypropylene and polypropylene/polyglecaprone at the 30o, 60o and 120o postoperative day. METHODS: Wistar rats were submitted to defect production in the ventral abdominal wall, with integrity of the parietal peritoneum. Prolene(r), Ultrapro(r) and Bard Soft(r) meshes were used in the correction of the defect. Nine subgroups of 10 animals were submitted to euthanasia at 30th, 60th and 120th postoperative day. Fragments of the abdominal wall of the animals were submitted to tensiometric analysis. RESULTS: The tensiometry at the 30th postoperative day showed greater resistance of the tissues with Bard Soft(r) (macroporous mesh) in relation to the tissues with Prolene(r) (microporous mesh). On the 60th postoperative day Bard Soft(r) maintained the superior resistance to the tissues comparing to Prolene Mesh(r). On the 120th postoperative day the tissues repaired with Ultrapro(r) (macroporous mesh) proved to be more resistant than the ones by Prolene(r) (microporous mesh) and Bard Soft(r) (macroporous mesh). CONCLUSION: The tissues repaired with macroporous meshes showed greater resistance than with microporous meshes at all stages, and at 120 days postoperative Ultrapro(r) performed better than the others. PMID- 29019555 TI - IMPACT OF OBESITY AND SURGICAL SKILLS IN LAPAROSCOPIC TOTALLY EXTRAPERITONEAL HERNIOPLASTY. AB - BACKGROUND: Laparoscopic totally extraperitoneal (TEP) hernia repair is a technically demanding procedure. Recent studies have identified BMI as an independent factor for technical difficulty in the learning period. AIM: To analyze the effect of overweight and obesity on the technical difficulties of TEP. METHOD: Prospective study on patients who underwent a symptomatic inguinal hernia by means of the TEP technique. Were analyzed gender, BMI, previous surgery, hernia type, operative time and complications. Technical difficulty was defined by operative time, major complications and recurrence. Patients were classified into four groups: 1) underweight, if less than 18,5 kg/m2; 2) normal range if BMI between 18,5 and 24,9 kg/m2; 3) overweight if BMI between 25-29,9 kg/m2; and 4) obese if BMI>=30 kg/m2. RESULTS: The cohort had a total of 190 patients, 185 men and 5 women. BMI values ranged from 16-36 kg/m2 (average 26 kg/m2). Average operating time was 55.4 min in bilateral hernia (15-150) and 37.8 min in unilateral (13-150). Time of surgery was statistically correlated with increased BMI in the first 93 patients (p=0.049). CONCLUSION: High BMI and prolonged operative time are undoubtedly correlated. However, this relationship may be statistically significant only in the learning period. Although several clinical features can influence surgical time, upon reaching an experienced level, surgeons appear to easily handle the challenges. PMID- 29019556 TI - COMPARATIVE STUDY OF POSTOPERATIVE PAIN BETWEEN THE LICHTENSTEIN AND LAPAROSCOPY SURGICAL TECHNIQUES FOR THE TREATMENT OF UNILATERAL PRIMARY INGUINAL HERNIA. AB - BACKGROUND: There are several surgical treatment options for inguinal hernia; however, there is no consensus on the literature identifying which surgical technique promotes less postoperative pain. AIM: To compare the intensity of postoperative pain between the surgical techniques Lichtenstein and transabdominal pre-peritoneal laparoscopy for the treatment of unilateral primary inguinal hernia. METHODS: Were included 60 patients, of which 30 were operated through the Lichtenstein technique and 30 patients through the transabdominal pre peritoneal laparoscopy. The pain levels were evaluated through the analogue visual scale for 2, 10 and 30 days after the surgery. Additionally, the recurrence rate and the presence of chronic pain and paresthesia were evaluated 12 months after the surgery. RESULTS: Overall, the data analysis showed significant differences on pain levels between the surgical techniques. There were no significant differences between the pain levels for day 2. However, for 10 and 30 days after the surgery, the pain levels were significantly lower for the patients operated through the transabdominal pre-peritoneal laparoscopy technique compared to the Lichtenstein technique. Furthermore, despite no recurrent hernias for both surgical techniques, 32 % of patients operated through the Lichtenstein technique reported chronic pain and paresthesia 12 months after the surgery, compared with 3,6% of patients operated through the transabdominal pre-peritoneal laparoscopy technique. CONCLUSION: There are differences between the surgical techniques, with the transabdominal pre-peritoneal laparoscopy procedure promoting significantly lower postoperative pain (10 and 30 days) and chronic pain (12 months) compared to the Lichtenstein procedure. PMID- 29019558 TI - LATE EVALUATION OF DYSPHAGIA AFTER HELLER ESOPHAGEAL MYOTOMY WITH DOR FUNDOPLICATION FOR ACHALASIA. AB - BACKGROUND: All available treatments for achalasia are palliative and aimed to eliminate the flow resistance caused by a hypertensive lower esophageal sphincter. AIM: To analyze the positive and negative prognostic factors in the improvement of dysphagia and to evaluate quality of life in patients undergoing surgery to treat esophageal achalasia by comparing findings before, immediately after, and in long follow-up. METHODS: A total of 84 patients who underwent surgery for achalasia between 2001 and 2014 were retrospectively studied. The evaluation protocol with dysphagia scores compared preoperative, immediate (up to three months) postoperative and late (over one year) postoperative scores to estimate quality of life. RESULTS: The surgical procedure was Heller-Dor in 100% of cases, with 84 cases performed laparoscopically. The percent reduction in pre- and immediate postoperative lower esophageal sphincter pressurewas 60.35% in the success group and 32.49% in the failure group. Regarding the late postoperative period, the mean percent decrease was 60.15% in the success group and 31.4% in the failure group. The mean overall drop in dysphagia score between the pre- and immediate postoperative periods was 7.33 points, which represents a decrease of 81.17%. CONCLUSIONS: Reduction greater than 60% percent in lower esophageal sphincter pressurebetween the pre- and postoperative periods suggests that this metric is a predictor of good prognosis for surgical response. Surgical treatment was able to have a good affect in quality of life and drastically changed dysphagia over time. PMID- 29019559 TI - COMPARISON BETWEEN INGUINAL HERNIOTOMIES WITH AND WITHOUT INCISING EXTERNAL OBLIQUE APONEUROSIS: A RANDOMIZED CLINICAL TRIAL. AB - BACKGROUND: Inguinal herniotomy is the most common surgery performed by pediatric surgeons. AIM: To compare the results and complications between two conventional methods of pediatric inguinal herniotomy with and without incising external oblique aponeurosis in terms of recurrence of hernia and other complications. METHODS: This one blinded clinical trial study was conducted on 800 patients with indirect inguinal hernia. Inclusion criterion was children with inguinal hernia. The first group underwent herniotomy without incising external oblique aponeurosis and second group herniotomy with incising external oblique aponeurosis. Recurrence of hernia and other complications including ileoinguinal nerve damage, hematoma, testicular atrophy, hydrocele, ischemic orchitis, and testicular ascent were evaluated. RESULTS: Recurrence and other complications with or without incising external oblique aponeurosis had no significant difference, exception made to hydrocele significantly differed between the two groups, higher in the incision group. CONCLUSION: Herniotomy without incising oblique aponeurosis can be appropriate choice and better than herniotomy with incising oblique aponeurosis. Children with inguinal herniotomy can be benefit without incising oblique aponeurosis, instead of more interventional traditional method. PMID- 29019557 TI - COLONOSCOPY: RANDOMIZED COMPARATIVE STUDY OF INSUFFLATION WITH CARBON DIOXIDE VERSUS AIR. AB - BACKGROUND: In Brazil, an increasing number of people are submitted to colonoscopy, either for screening or for therapeutic purposes. AIM: To evaluate whether there are advantages of using carbon dioxide (CO2) over air for insufflation. METHODS: Two hundred and ten of 219 patients were considered eligible for this study and were randomized into two groups according to the gas insufflation used: Air Group (n=104) and CO2 Group (n=97). The study employed a double-blind design. RESULTS: The Air and CO2 Groups were similar in respect to bowel preparation evaluated using the Boston scale, age, gender, previous surgery, maneuvers necessary for the advancement of the device, and presence of polyps, tumors or signs of diverticulitis. However, "waking up with pain" and "pain at discharge" were more prevalent in the Air Group, albeit not statistically significant, with post-exam bloating seen only in the Air Group. The responses to a questionnaire, applied to analyze the late post-exam period, showed more comfort with the use of CO2. CONCLUSIONS: The use of CO2 is better than air as it avoids post-examination bloating, thereby providing greater comfort to patients. PMID- 29019560 TI - PANCREATODUODENECTOMY: BRAZILIAN PRACTICE PATTERNS. AB - BACKGROUND: Pancreatoduodenectomy is a technically challenging surgical procedure with an incidence of postoperative complications ranging from 30% to 61%. The procedure requires a high level of experience, and to minimize surgery-related complications and mortality, a high-quality standard surgery is imperative. AIM: To understand the Brazilian practice patterns for pancreatoduodenectomy. METHOD: A questionnaire was designed to obtain an overview of the surgical practice in pancreatic cancer, specific training, and experience in pancreatoduodenectomy. The survey was sent to members who declared an interest in pancreatic surgery. RESULTS: A total of 60 questionnaires were sent, and 52 have returned (86.7%). The Southeast had the most survey respondents, with 25 surgeons (48.0%). Only two surgeons (3.9%) performed more than 50% of their pancreatoduodenectomies by laparoscopy. A classic Whipple procedure was performed by 24 surgeons (46.2%) and a standard International Study Group on Pancreatic Surgery lymphadenectomy by 43 surgeons (82.7%). For reconstruction, pancreaticojejunostomy was performed by 49 surgeons (94.2%), single limb technique by 41(78.9%), duct-to-mucosa anastomosis by 38 (73.1%), internal trans-anastomotic stenting by 26 (50.0%), antecolic route of gastric reconstruction by 39 (75.0%), and Braun enteroenterostomy was performed by only six surgeons (11.5%). Prophylactic abdominal drainage was performed by all surgeons, and somatostatin analogues were utilized by six surgeons (11.5%). Early postoperative enteral nutrition was routine for 22 surgeons (42.3%), and 34 surgeons (65.4%) reported routine use of a nasogastric suction tube. CONCLUSION: Heterogeneity was observed in the pancreatoduodenectomy practice patterns of surgeons in Brazil, some of them in contrast with established evidence in the literature. PMID- 29019561 TI - ATORVASTATIN CAN PREVENT HEPATIC REMOTE REPERFUSION INJURY. AB - BACKGROUND: Some studies have shown that statins have a promising effect on protection against reperfusion injury. AIM: To evaluate the ability of ischemic postconditioning, statins and both associated to prevent or minimize reperfusion injury in the liver of rats subjected to ischemia and reperfusion by abdominal aorta clamping. METHOD: Were used 41 Wistar rats, which were distributed into five groups: ischemia and reperfusion (I/R), ischemic postcondictioning (IPC), postconditioning + statin (IPC+S), statin (S) and Sham. It was performed a medium laparotomy, dissection and isolation of the infra-renal abdominal aorta; excepting Sham group, all the others were submitted to the aorta clamping for 70 min (ischemia) and posterior clamping removing (reperfusion, 70 min). In the IPC and IPC+S groups, postconditioning was performed between the ischemia and reperfusion phases by four cycles of reperfusion and ischemia lasting 30 s each. In IPC+S and S groups, preceding the surgical procedure, administration of 3.4 mg/day of atorvastatin was performed for seven days by gavage. The left hepatic lobe was removed for histological study and euthanasia was performed. RESULTS: The mean hepatic injury was 3 in the I/R group, 1.5 in the IPC group, 1.2 in the IPC+S group, 1.2 in the S group, and 0 in the SHAM group. The I/R group had a higher degree of tissue injury compared to the others in the statistical analysis and there was no difference between the others (p<0.01). CONCLUSION: Ischemic postconditioning and atorvastatin were able to minimize hepatic reperfusion injury, either alone or in combination. PMID- 29019563 TI - CRITICAL EVALUATION OF LONG-TERM RESULTS OF MALIGNANT HEPATIC TUMORS TREATED BY MEANS CURATIVE LAPAROSCOPIC HEPATECTOMY. AB - BACKGROUND: Laparoscopic hepatectomy has presented great importance for treating malignant hepatic lesions. AIM: To evaluate its impact in relation to overall survival or disease free of the patients operated due different hepatic malignant tumors. METHODS: Thirty-four laparoscopic hepatectomies were performed in 31 patients with malignant neoplasm. Patients were distributed as: Group 1 - colorectal metastases (n=14); Group 2 - hepatocellular carcinoma (n=8); and Group 3 - non-colorectal metastases and intrahepatic cholangiocarcinoma (n=9). The conversion rate, morbidity, mortality and tumor recurrence were also evaluated. RESULTS: Conversion to open surgery was 6%; morbidity 22%; postoperative mortality 3%. There was tumor recurrence in 11 cases. Medians of overall survival and disease free survival were respectively 60 and 46 m; however, there was no difference among studied groups (p>0,05). CONCLUSION: Long-term outcomes of laparoscopic hepatectomy for treating hepatic malignant tumors are satisfactory. There is no statistical difference in relation of both overall and disease free survival among different groups of hepatic neoplasms. PMID- 29019564 TI - THE IMPACT OF THE USE OF SYMBIOTICS IN THE PROGRESSION OF NONALCOHOLIC FATTY LIVER DISEASE IN A RAT MODEL. AB - BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is characterized by accumulation of intrahepatic lipid. The use of live microorganisms promotes beneficial effects; however, the use of symbiotic and its role in NAFLD is not yet fully understood. AIM: Verify if the symbiotic administration influences the occurrence and progression of NAFLD in rats, after induction of hepatic steatosis by high calorie diet. METHOD: Forty-five rats were divided into four groups: G1 (control); G2 (control+symbiotic); G3 (high calorie+symbiotic) and G4 (high calorie), and euthanized after 60 days of diet. Liver disease was evaluated by biochemical analysis, IL6 measurement and histological assessment. RESULTS: Symbiotic had influence neither on weight gain, nor on coefficient dietary intake in G3 and G4. G2 had the greatest weight gain, while G1 had the highest coefficient dietary intake between groups. G1 showed higher expression of aspartate aminotransferase than those from G2 (150+/-35 mg/dl, and 75+/-5 mg/dl) while G4 showed higher expression of the enzyme compared to G3 (141+/-9.7 mg/dl to 78+/-4 mg/dl). Liver histology showed different stages of NAFLD between groups. G4 animals showed increased serum interleukin-6 when compared to G3 (240.58+/-53.68 mg/dl and 104.0+/-15.31 mg/dl). CONCLUSION: Symbiotic can reduce hepatic aminotransferases and interleukin-6 expression. However, the histology showed that the symbiotic was not able to prevent the severity of NAFLD in rats. PMID- 29019562 TI - TWELVE YEARS OF EXPERIENCE USING CHOLECYSTOJEJUNAL BY-PASS FOR PALLIATIVE TREATMENT OF ADVANCED PANCREATIC CANCER. AB - BACKGROUND: The cholecistojejunal bypass is an important resource to treat obstructive jaundice due to advanced pancreatic cancer. AIM: To assess the early morbidity and mortality of patients with pancreatic cancer who underwent cholecystojejunal derivation, and to assess the success of this procedure in relieving jaundice. METHOD: This retrospective study examined the medical records of patients who underwent surgery. They were categorized into early death and non early death groups according to case outcome. RESULTS: 51.8% of the patients were male and 48.2% were female. The mean age was 62.3 years. Early mortality was 14.5%, and 10.9% of them experienced surgical complications. The cholecystojejunostomy procedure was effective in 97% of cases. There was a tendency of increased survival in women and patients with preoperative serum total bilirubin levels below 15 mg/dl. CONCLUSION: Cholecystojejunal derivation is a good therapeutic option for relieving jaundice in patients with advanced pancreatic cancer, with acceptable rates of morbidity and mortality. PMID- 29019565 TI - SLEEVE GASTRECTOMY AND FUNDOPLICATION AS A SINGLE PROCEDURE IN PATIENTS WITH OBESITY AND GASTROESOPHAGEAL REFLUX. AB - BACKGROUND: Bariatric surgery in Chile has seen an exponential increase in recent years, especially in sleeve gastrectomy. Its use is currently discussed in patients suffering from gastroesophageal reflux disease. Different options have been considered for the management of these patients but up to now laparoscopic Roux-en-Y gastric bypass seems to be the best option. Sleeve gastrectomy plus concomitant fundoplication or hiatal hernia repair also has been suggested in patients having reflux or small hiatal hernia. AIM: To present a cohort of obese patients with gatroesophageal reflux undergoing this procedure, which seeks to provide the benefits of both laparoscopic gastric sleeve (LSG) and antireflux surgery focused on the evaluation of presence of reflux and BMI after surgery, and to compare the result observed in this cohort with a previous group of obese patients without reflux submitted to sleeve gastrectomy alone. METHODS: Retrospective case series in 15 patients who underwent this surgery between the years 2003 and 2012. Clinical records were analyzed and values of 24 hr pH monitoring, esophageal manometry and clinical outcome were recorded. Results were compared to a previous series of patients who underwent LSG. No statistical analyses were made. RESULTS: Group A consisted of 15 patients submitted to LSG plus fundoplication. 93% (n=14) were female. Mean age was 46.2 years. Mean preoperative body mass index (BMI) was 33.9. All patients had altered pH monitoring and manometry preoperatively. There was one minor complication corresponding to a seroma. There was no perioperative mortality. Group B consisted of 23 obese patients who underwent LSG. These patients developed de novo reflux, hypotensive LES and esophagitis after the surgery. Group A patients showed improvement in esophageal pH monitoring and manometry at three months. During long-term follow-up, six underwent revision surgery, four for weight regain, one regained weight associated with symptomatic reflux, and one underwent re-intervention for reflux. CONCLUSIONS: Good results are observed in the short term follow up in both reflux resolution and weight loss. Nevertheless, results at long term are discouraging, with 53.3% of the patients requiring revision surgery during follow-up. PMID- 29019566 TI - PREOPERATIVE MANOMETRY FOR THE SELECTION OF OBESE PEOPLE CANDIDATE TO SLEEVE GASTRECTOMY. AB - BACKGROUND: Sleeve gastrectomy may alter esophageal motility and lower esophageal sphincter pressure. AIM: To detect manometric changings in the esophagus and lower esophageal sphincter before and after sleeve gastrectomy in order to select patients who could develop postoperative esophageal motilitity disorders and lower esophageal sphincter pressure modifications. METHODS: Seventy-three patients were selected. All were submitted to manometry before the operation and one year after. The variables analyzed were: resting pressure of the lower esophageal sphincter, contraction wave amplitude, duration of contraction waves, and esophageal peristalsis. Data were compared before and after surgery and to the healthy and non-obese control group. Exclusion criteria were: previous gastric surgery, reflux symptoms or endoscopic findings of reflux or hiatal hernia, diabetes and use of medications that could affect esophageal or lower esophageal sphincter motility. RESULTS: 49% of the patients presented preoperative manometric alterations: lower esophageal sphincter hypertonia in 47%, lower esophageal sphincter hypotonia in 22% and increase in contraction wave amplitude in 31%. One year after surgery, manometry was altered in 85% of patients: lower esophageal sphincter hypertonia in 11%, lower esophageal sphincter hypotonia in 52%, increase in contraction wave amplitude in 27% and 10% with alteration in esophageal peristalsis. Comparing the results between the preoperative and postoperative periods, was found statistical significance for the variables of the lower esophageal sphincter, amplitude of contraction waves and peristalsis. CONCLUSION: Manometry in the preoperative period of sleeve gastrectomy is not an exam to select candidates to this technique. PMID- 29019568 TI - GASTRIC SLEEVE SURGERY AS A NEW CLINICAL INDICATION FOR SURGICAL GASTROSTOMY AFTER FAILURE OF ENDOSCOPIC APPROACH IN PATIENTS WHO NEED LONG-TERM ENTERAL NUTRITION. PMID- 29019567 TI - MANAGEMENT OF PANCREATICOPLEURAL FISTULAS SECONDARY TO CHRONIC PANCREATITIS. AB - INTRODUCTION: Pancreaticopleural fistula is a rare complication of chronic pancreatitis. OBJECTIVE: To describe pancreaticopleural fistula due to chronic pancreatitis and perform an extensive review of literature on this topic. METHODS: Comprehensive narrative review through online research on the databases Medline and Lilacs for articles published over the last 20 years. There were 22 case reports and four case series selected. RESULTS: The main indication for surgical treatment is the failure of clinical and/or endoscopic treatments. Surgery is based on internal pancreatic drainage, especially by means of pancreaticojejunostomy, and/or pancreatic resections. CONCLUSION: Pancreaticopleural fistula is a rare complication of chronic pancreatitis and the Frey procedure may be an appropriate therapeutic option in selected cases when clinical and endoscopic treatments are unsuccessful. PMID- 29019569 TI - Challenges in high technology surgery. PMID- 29019570 TI - Thoraco-laparoscopic esophagectomy: thoracic stage in prone position. AB - OBJECTIVE: to analyze the National Cancer Institute Abdominopelvic Division (INCA / MS/HC I) initial experience with thoraco-laparoscopic esophagectomy with thoracic stage in prone position. METHODS: we studied 19 consecutive thoraco laparoscopic esophagectomies from may 2012 to august 2014, including ten patients with squamous cells carcinoma (five of the middle third and five of the lower third) and nine cases of gastroesophageal junction adenocarcinoma (six Siewert I and three Siewert II). All procedures were initiated by the prone thoracic stage. RESULTS: There were minimal blood loss, optimal mediastinal visualization, oncological radicality and no conversions. Surgical morbidity was 42 %, most being minor complications (58% Clavien I or II), with few related to the technique. The most common complication was cervical anastomotic leak (37%), with a low anastomotic stricture rate (two stenosis: 10.53%). We had one (5.3%) surgical related death, due to a gastric tube's mediastinal leak, treated by open reoperation and neck diversion. The median Intensive Care Unit stay and hospital stay were two and 12 days, respectively. The mean thoracoscopic stage duration was 77 min. Thirteen patients received neoadjuvant treatment (five squamous cells carcinoma and eight gastroesophageal adenocarcinomas). The average lymph node sample had 16.4 lymph nodes per patient and 22.67 when separately analyzing patients without neoadjuvant treatment. CONCLUSION: the thoraco-laparoscopic approach was a safe technique in the surgical treatment of esophageal cancer, with a good lymph node sampling. PMID- 29019571 TI - Prognostic factors and overall survival of breast cancer in the city of Goiania, Brazil: a population-based study. AB - OBJECTIVE: to analyze the overall survival and prognostic factors of women with breast cancer in the city of Goiania. METHODS: this is a retrospective, cross sectional, observational study that included women with malignant neoplasms of the breast identified by the Goiania Population-based Cancer Registry. The variables studied were age at diagnosis, tumor size, staging, axillary lymph node involvement, tumor grade, disease extent, hormone receptors, and c-erb-B2 oncoprotein. We performed overall survival analyzes of five and ten years. RESULTS: we included 2,273 patients in the study, with an overall survival of 72.1% in five years and 57.8% in ten years. In the multivariate analysis adjusted for tumor size, the factors that influenced the prognosis were axillary lymph nodes, histological grade, progesterone receptor, c erb B2, T staging and disease extension. CONCLUSION: overall survival in ten years is below that observed in other countries, and possibly reflects what happens with the majority of the Brazilian population. The prognostic factors found in this population follow the same international patterns. PMID- 29019572 TI - Epidemiological profile and treatment of substance losses by trauma to the lower limbs. AB - OBJECTIVES: to evaluate the epidemiological profile, the surgical treatment and the postoperative results of patients with complex traumatic injuries to the lower limbs. METHODS: we conducted a retrospective study of patients with traumatic complex injuries treated by the Plastic Surgery Service of a regional hospital in Brasilia. We analyzed clinical-epidemiological data, type of surgical procedure and functional recovery of the limb after six months of treatment. RESULTS: 119 patients were treated, with a mean age of 29 years, predominantly men (76.4%). Motorcycle accident was responsible for most of the injuries, in 37.8% of cases. The most frequent surgical treatment was skin grafting (62.1%), followed by the fasciocutaneous flap (21.9%), muscular flap (12.6%) and microsurgical flap (3.4%). Six months after completion of the surgical treatment, 35.3% of the patients needed crutches to move, characterizing a delay in limb functional recovery that, however, was significantly related to the presence of fractures, external fixation or bone exposure in the preoperative period. CONCLUSION: the profile of the patient with complex traumatic lower limb injury was a male, motorcycle accident victim, and grafting was the most used treatment. Orthopedic trauma with bone fracture, bone exposure and the presence of external fixator were significantly associated with a higher risk of limb functional impairment, requiring locomotion crutches after six months of treatment. PMID- 29019573 TI - Use of transfer factor in immunosuppressed surgical patients. AB - OBJECTIVE : to evaluate the action of Transfer Factor on the immune response of patients with malignant neoplasm submitted to surgery, chemotherapy and radiotherapy. METHOD: we analyzed the variations of leukocytes, total lymphocytes, T-lymphocytes and CD4 counts in 60 patients submitted to immunostimulation with a single, daily dose of 0.5mg sublingual Transfer Factor, started simultaneously with chemotherapy and/or radiotherapy. RESULTS: there were statistically significant increases in the counts of all cell lines studied, more pronounced after 12 months of use of the medication. CONCLUSION: the Transfer Factor restored immune response and showed no side effects. PMID- 29019574 TI - Effects of dimethylsulfoxide and pentoxifylline in the vitality of cutaneous flaps in rats. AB - OBJECTIVES: to verify the influence of dimethylsulfoxide and pentoxifylline on the vitality of cutaneous flaps in rats and the tissue repair process. METHODS: were studied 30 Wistar rats, submitting them to a 2cm wide by 8cm long dorsal cutaneous flap, of caudal base. We distributed the animals in three groups: Control Group (n=10) with application gauze moistened with 0.9% Saline in the flap bed for 30 seconds; Dimethylsulfoxide group (n=10), with administration of 1ml of 5% dimethylsulfoxide divided into five injections of 0.2ml in the transition of the flap segments; Pentoxifylline group (n=10), with administration of pentoxifylline 20mg/kg, diluted to 1ml and divided into five injections of 0.2ml in the transition of the flap segments. Drugs were administered intraoperatively, in a single dose and subcutaneously. We observed the skin flaps for changes in color and texture. On the 10th postoperative day, we checked the dimensions of viable and necrotic tissues, followed by excision of the specimen for histological analysis. RESULTS: the measurements of length of the viable and necrotic tissues between groups showed no differences. Histological analysis showed that the Dimethylsulfoxide group presented neovascularization, inflammatory infiltrate with leukocytes and more structured conjunctival stroma. The Pentoxifylline group showed neovascularization and inflammatory infiltrate, with moderate to intense granulation. The control group evolved with a higher rate of necrosis in the distal segment. CONCLUSION: dimethylsulfoxide and pentoxifylline influenced the vitality of the flap and the tissue repair process. However, they did not prevent necrosis macroscopically. PMID- 29019575 TI - Colon cancer surgery in patients operated on an emergency basis. AB - OBJECTIVE: to study the epidemiological profile of patients with colorectal cancer operated on an emergency basis at the Bonsucesso Federal Hospital. METHODS: this is a retrospective study of patients operated between January 1999 and December 2012. We analyzed the following variables: age, gender, clinical data, TMN staging, tumor location, survival and types of surgery. RESULTS: we evaluated 130 patients in the study period. The most frequent clinical picture was intestinal obstruction, in 78% of cases. Intestinal perforation was the surgical indication in 15%. The majority (39%) of the patients had advanced TNM staging, compared with 27% in the initial stage. There were 39 deaths (30%) documented in the period. The most common tumor site was the sigmoid colon (51%), followed by the ascending colon (16%). The curative intent was performed in most cases, with adjuvant treatment being performed in 40% of the patients. Distant metastases were found in 42% of the patients and 10% had documented disease recurrence. Disease-free survival at two and five years was 69% and 41%, respectively. CONCLUSION: there was a high mortality rate and a low survival rate in colorectal cancer patients operated on urgently. PMID- 29019576 TI - Development of a laparoscopic training model using a smartphone. AB - OBJECTIVE: to develop a model of training in video-surgery, of low cost and that uses a smartphone as an image-generating source. METHODS: We developed a 38cm high, 40cm wide, 40cm long hexagonal-shaped training box, with a front opening of 12x8 cm for coupling the smartphone. The internal illumination is made with LED lamps and for the support of the smartphone, we used a selfie stick, fixed in the upper part of the box, that allows control of height, distance, angulation, and the coupling of devices with different formats. We selected 20 undergraduate students without previous training in video-surgery, who performed four exercises in the box, with assessment of the time and amount of errors in the execution of the tasks. Each student completed the training for three consecutive weeks. We collected the data in spreadsheets for later analysis. RESULTS: Nineteen students completed the training program, with significant improvement in the times and in the number of errors. CONCLUSION: the developed model was feasible and promoted the acquisition of skills in this group of students. In addition, it presents low cost, is portable and uses common equipment, such as smartphones. PMID- 29019577 TI - Influence of the colon in liver regeneration of rats submitted to hepatectomy and colectomy. AB - OBJECTIVE: to evaluate whether colectomy, associated with 70% hepatectomy, influences liver regeneration in rats. METHODS: we distributed 18 Wistar rats in three groups of six animals each. In group I (sham), we performed laparotomy; In group II, colectomy + 70% hepatectomy; In group III, only 70% hepatectomy. On the 6th postoperative day, we collected blood by cardiac puncture under anesthesia, followed by euthanasia. We performed serum dosages of aspartate aminotransferase (AST), alanine aminotransferase (ALT), albumin and alkaline phosphatase (AF), hepatocyte growth factor (HGF) and transforming growth factor-alpha (TGF-alpha). We calculated liver regeneration by the formula: liver weight ratio per 100g body weight at the time of euthanasia / liver weight preoperatively projected for 100g body weight * 100. RESULTS: ALT and AST levels were significantly lower in group II when compared with group III (p<0.001). Albuminemia showed significantly higher levels in group II. Levels of HGF and TGF-alpha in group II were significantly higher than in group III. The percentage of hepatic regeneration was significantly higher in group II than in group III. CONCLUSION: Colectomy performed simultaneously with 70% hepatectomy had a positive influence on liver regeneration in rats. Further research is needed to reveal the molecular mechanisms of this effect and to characterize the colon influence in liver physiology. PMID- 29019578 TI - Nutritional assessment methods as predictors of postoperative mortality in gastric cancer patients submitted to gastrectomy. AB - OBJECTIVES: to determine the nutritional evaluation method that best predicts mortality in 90 days of patients submitted to gastrectomy for gastric cancer. METHODS: we conducted a prospective study with 44 patients with gastric cancer, stages II to IIIa, of whom nine were submitted to partial gastrectomy, 34 to total gastrectomy, and one to esophago-gastrectomy. All patients were nutritionally evaluated through the same protocol, up to 72h after hospital admission. The parameters used were Patient-Generated Subjective Global Assessment (PGSGA), classical anthropometry, current weight and height, percentage of weight loss (%WL) and body mass index (BMI). We also measured the thickness of the thumb adductor muscle (TAM) in both hands, dominant hand (TAMD) and non-dominant hand (TAMND), as well as the calculated the prognostic nutritional index (PNI). The laboratory profile included serum levels of albumin, erythrocytes, hemoglobin, hematocrit, leukocytes, and total lymphocytes count (TLC). RESULTS: of the 44 patients studied, 29 (66%) were malnourished by the subjective method, 15 being grade A, 18 grade B and 11 grade C. Cases with PGSGA grade B and TAMD 10.2+/-2.9 mm were significantly associated with higher mortality. The ROC curves (95% confidence interval) of both PGSGA and TAMD thickness reliably predicted mortality at 30 and 90 days. No laboratory method allowed predicting mortality at 90 days. CONCLUSION: PGSGA and the TAMD thickness can be used as preoperative parameters for risk of death in patients undergoing gastrectomy for gastric cancer. PMID- 29019579 TI - Epidemiological study of facial fractures at the Oral and Maxillofacial Surgery Service, Santa Casa de Misericordia Hospital Complex, Porto Alegre - RS - Brazil. AB - OBJECTIVES: to investigate the incidence and etiology of face trauma with diagnosis of facial fracture treated at the Buccomaxillofacial Surgery and Traumatology Service of the Santa Casa de Misericordia Hospital Complex in Porto Alegre. METHODS: we conducted a cross-sectional, retrospective epidemiological study of 134 trauma victims with 153 facial fractures. RESULTS: the male gender was the most affected (86.6%) and the incidence was higher in the age group from 21 to 30 years. The main etiology was assault (38.8%), followed by motor vehicle accidents (14.2%), motorcycle accidents (13.4%), falls (9%), road accidents (6.7%), sports accidents (5.2%), work accidents (5.2%), firearm injuries (4.5%) and cycling accidents (3%). The most frequent fractures were those of the zygomatic complex (44.5%), followed by fractures of the mandible (42.5%), maxillary bone (5.2%), nasal bones (4.5%) and zygomatic arch (3.3%). CONCLUSION: the fractures of the zygomatic complex and the mandible were the ones with the highest incidence in the facial traumas, having physical assaults as their main cause. PMID- 29019581 TI - Observation time and spontaneous resolution of primary phimosis in children. AB - OBJECTIVE: to investigate spontaneous resolution rate of a series of patients with physiologic phimosis in relation to observation time and presence of symptoms. METHODS: retrospective and longitudinal follow-up study of patients with physiologic phimosis, that did not apply topic treatment. These patients were invited for a new visit for reevaluation, or recent data were obtained by chart analysis. Spontaneous resolution rate was determined and statistically compared to age, presence of symptoms at first medical visit and time until reevaluation. RESULTS: seventy one patients were included. Medium time of observation from first visit to reevaluation was 37.4 months. There was spontaneous resolution of phimosis in 32 (45%) patients. Children with spontaneous resolution were younger at initial diagnosis and were observed during a longer period of time. Most asymptomatic patients at first visit presented spontaneous resolution. However, it was not possible to stablish a significant relationship between presence of symptoms and evolution of physiologic phimosis. CONCLUSIONS: time of observation was the main determinant of spontaneous resolution of patients with physiologic phimosis, reinforcing the current more conservative approach regarding circumcision of those patients. PMID- 29019580 TI - Effects of local pressure on cutaneous blood flow in pigs. AB - OBJECTIVE: to evaluate the effects of increasing pressures on the cutaneous blood flow in the skin of pigs. METHODS: we conducted an experimental study in pigs submitted to subcutaneous magnetic implants (n=30). After healing, were applied external magnets with varying magnetic forces to the skin, generating compression. We evaluated the cutaneous circulation of the skin under compression by the Laser Speckle Contrast Imaging (LSCI) technique. We measured the depth of the implants by ultrasonography, and applied computational simulations to the calculation of the different pressure values, considering the different distances between implants and external magnets. RESULTS: nineteen implants presented complications. The remaining 11 were submitted to different magnetic compression forces and perfusion analysis. Two linear regression models showed an inverse correlation between exerted pressure and cutaneous perfusion, with significant variation, mainly in the initial pressure increases, of up to 20mmHg. CONCLUSION: The main reduction in cutaneous blood flow resulted from initial increases of up to 20 mmHg. The results suggest that tissue ischemia can occur even in low pressure regimes, which could contribute to the appearance of skin lesions, particularly ulcers related to medical devices. PMID- 29019582 TI - Ultrasound-guided foam sclerotherapy for severe chronic venous insufficiency. AB - Chronic venous insufficiency is characterized by cutaneous alterations caused by venous hypertension; in severe forms, it progresses to lower limb ulcers. Lower limb varicose veins are the main cause of chronic venous insufficiency, and the classic treatment includes surgery and compressive therapy. Minimally invasive alternative treatments for varicose veins include new techniques such as venous thermal ablation using laser or radiofrequency. The use of different methods depends on clinical and anatomical factors. Ultrasound-guided foam sclerotherapy is the venous injection of sclerosing foam controlled by Doppler ultrasound. Sclerotherapy is very useful to treat varicose veins, and probably, is cheaper than other methods. However, until the present, it is the less studied method. PMID- 29019583 TI - Management of infected pancreatic necrosis: state of the art. AB - Pancreatic necrosis occurs in 15% of acute pancreatitis. The presence of infection is the most important factor in the evolution of pancreatitis. The diagnosis of infection is still challenging. Mortality in infected necrosis is 20%; in the presence of organic dysfunction, mortality reaches 60%. In the last three decades, there has been a real revolution in the treatment of infected pancreatic necrosis. However, the challenges persist and there are many unsolved questions: antibiotic treatment alone, tomography-guided percutaneous drainage, endoscopic drainage, video-assisted extraperitoneal debridement, extraperitoneal access, open necrosectomy? A step up approach has been proposed, beginning with less invasive procedures and reserving the operative intervention for patients in which the previous procedure did not solve the problem definitively. Indication and timing of the intervention should be determined by the clinical course. Ideally, the intervention should be done only after the fourth week of evolution, when it is observed a better delimitation of necrosis. Treatment should be individualized. There is no procedure that should be the first and best option for all patients. The objective of this work is to critically review the current state of the art of the treatment of infected pancreatic necrosis. PMID- 29019585 TI - Educational project: low cost porcine model for venous cutdown training. AB - OBJECTIVE: to describe and evaluate the acceptance of a porcine experimental model in venous cutdown on a medical education project in Southwest of Brazil. METHOD: a porcine experimental model was developed for training in venous cutdown as a teaching project. Medical students and resident physicians received theoretical training in this surgical technique and then practiced it on the model. After performing the procedure, participants completed a questionnaire on the proposed model. This study presents the model and analyzes the questionnaire responses. RESULTS: the study included 69 participants who used and evaluated the model. The overall quality of the porcine model was estimated at 9.16 while the anatomical correlation between this and human anatomy received a mean score of 8.07. The model was approved and considered useful in the teaching of venous cutdown. CONCLUSIONS: venous dissection training in porcine model showed good acceptance among medical students and residents of this institution. This simple and easy to assemble model has potential as an educational tool for its resemblance to the human anatomy and low cost. PMID- 29019584 TI - A proposal of Brazilian Society of Surgical Oncology (BSSO/SBCO) for standardizing cytoreductive surgery (CRS) plus hyperthermic intraperitoneal chemotherapy (HIPEC) procedures in Brazil: pseudomixoma peritonei, appendiceal tumors and malignant peritoneal mesothelioma AB - Cytoreductive surgery plus hypertermic intraperitoneal chemotherapy has emerged as a major comprehensive treatment of peritoneal malignancies and is currently the standard of care for appendiceal epithelial neoplasms and pseudomyxoma peritonei syndrome as well as malignant peritoneal mesothelioma. Unfortunately, there are some worldwide variations of the cytoreductive surgery and hypertermic intraperitoneal chemotherapy techniques since no single technique has so far demonstrated its superiority over the others. Therefore, standardization of practices might enhance better comparisons between outcomes. In these settings, the Brazilian Society of Surgical Oncology considered it important to present a proposal for standardizing cytoreductive surgery plus hypertermic intraperitoneal chemotherapy procedures in Brazil, with a special focus on producing homogeneous data for the developing Brazilian register for peritoneal surface malignancies. PMID- 29019586 TI - Continuous versus interrupted suture technique in microvascular anastomosis in rats. AB - PURPOSE: To compare the continuous and interrupted suture technique on femoral artery on rats after vessel repair and 14 days after. METHODS: Twenty rats were operated randomly divided into two group matched according to the suture technique used: interrupted or continuous. We performed a femoral anastomosis on the right femoral artery. We analyzed weight, arterial caliber, anastomosis time and patency after vessel repair and 14 days after. RESULTS: There was no significant difference between groups in the weight (p=0.64), diameter of the femoral artery (p=0.95) and patency (p=1.00). The time spent in the anastomosis was 451 seconds in the continuous group and 718 seconds in the interrupted group, presenting significant difference (p<0.01). CONCLUSION: The continuous suture technique shows a similar patency rates than interrupted technique, however with a shorter time to perform the anastomosis. PMID- 29019587 TI - End-to-side versus end-to-end neurorrhaphy at the peroneal nerve in rats. AB - PURPOSE: To evaluate three different kinds of neurorrhaphy of the peroneal nerve. METHODS: Eigthy rats were divided into 5 groups. Control: nerve had no intervention. End-to-end (EE): nerve was cut and elongated with a nerve graft with two end-to-end neurorrhaphies. End-to-side (ES): nerve was cut and sutured to the graft with at the lateral side of the nerve. Side-to-end (SE): the nerve was cut and sutured to the graft with end-to-end neurorrhaphy. Denervated: nerve was cut and both endings were buried into the muscle. The evaluation was done by walking track analysis, electrophysiology, body mass, cranial tibial muscle mass, nerve and muscle fibers morphometry. RESULTS: The EE, ES and SE have the same potential of reinnervation. CONCLUSION: There is no functional or histological difference between these different types of neurorrhaphy. PMID- 29019588 TI - Ultrastructural analysis and residual DNA evaluation of rabbit vein scaffold. AB - PURPOSE: To investigate the ultrastructural characteristics and analysis of residual DNA in scaffold models, produced with decellularized vena cava in an experimental model with rabbits. METHODS: Three groups were created for ultrastructural and residual DNA analysis: group 1 - control, consisting of samples of vena cava in natura; group 2 - SD, consisting of vein fragments submitted to 2% sodium deoxycholate decellularization by shaking (160rpm - Shaker News Brunswick Scientific(r)) for 1 hour at controlled temperature shaker at 37 degrees C; group 3 - SDS, consisting of vein fragments submitted to 1% sodium dodecyl sulfate decellularization under the same previous condition, for 2 hours. RESULTS: The ultrastructural matrix of the blood vessel maintained its vintegrity after either decellularization models. The results of the two quantification methods demonstrated a significant decrease in the DNA content of the decellularized vena cava samples as compared to the control samples and, differed statistically from each other, p <0.05. CONCLUSION: The 2% DS protocol for vein decellularization, in this experimental model, was considered the best protocol because it presented less amount of residual DNA without causing substantial destruction of the extracellular matrix. PMID- 29019589 TI - Role of the route of leukotrienes in an experimental model of oral mucositis induced by 5-fluorouracil 1. AB - PURPOSE: To investigate the participation of cysteinyl leukotrienes in the pathophysiology of oral mucositis. METHODS: Oral mucositis was induced in hamsters using 5-fluorouracil (5-FU; 60 and 40 mg/kg; i.p., on days 1 and 2, respectively, and with excoriations in jugal mucosa on day 4). Montelukast (10, 20, or 40 mg/kg/d; gavage), MK886 (3 mg/kg/d, i.p.), or saline or celecoxib (7.5 mg/kg/d; i.p.) was administered 1 h prior to 5-FU and daily, until the fourth (MK886) or tenth day, when the animals were euthanized and their jugal mucosa was collected for macroscopic, histopathological, and immunohistochemical evaluation. RESULTS: Neither montelukast nor MK-886 prevented the oral mucositis induced by 5 FU, as observed by histopathological evaluation. In addition, we did not find significant differences in the expression of inducible nitric oxide synthase-2, cyclooxygenase-2, or interleukin (IL)-1beta between the experimental and control groups. However, we did observe a significant decrease in tumor necrosis factor (TNF)-alpha expression for all doses of montelukast; we also observed a significant decrease in IL-10 with 40 mg/kg/d and MK 886. CONCLUSIONS: Cysteinyl leukotrienes do not play an important role in experimental oral mucositis induced by 5-FU. There is a modulating action specifically on TNF-alpha. PMID- 29019591 TI - X-ray dynamic observation of cervical degenerative disease induced by unbalanced dynamic and static forces in rats 1. AB - PURPOSE: To investigate dynamically the X-ray appearance of cervical degenerative disease induced by unbalanced dynamic and static forces in rats. METHODS: A total of 60 Sprague Dawley rats were randomized into test (n=45) and control (n=15) groups, which were randomly subdivided into the one-, three- and six-month post operative groups. The test group included 10, 15 and 20 rats at the respective corresponding post-operative stage and the control group included five rats at each time-point. By excising cervicodorsal muscles, interspinous ligaments and supraspinous ligament of rats in the test group, the balance of dynamic and static forces on cervical vertebrae was disrupted to establish a rat model of cervical degeneration. Spinal X-ray images were acquired, and intervertebral disc space and intervertebral foramen size were measured at one, three and six months post-operation. The results were analyzed and compared among groups. RESULTS: Cervical dynamic and static imbalance accelerated the appearance of cervical degenerative disease on X-ray. CONCLUSION: Cervical degenerative disease may be induced by unbalanced dynamic and static forces in rats. PMID- 29019590 TI - Schinus terebinthifolius Raddi ( Aroeira) leaves oil attenuates inflammatory responses in cutaneous wound healing in mice 1. AB - PURPOSE: To investigated the inflammatory, angiogenic and fibrogenic activities of the Schinus terebinthifolius Raddi leaves oil (STRO) on wound healing. METHODS: The excisional wound healing model was used to evaluate the effects of STRO. The mice were divided into two groups: Control, subjected to vehicle solution (ointment lanolin/vaseline base), or STRO- treated group, administered topically once a day for 3, 7 and 14 days post-excision. We evaluated the macroscopic wound closure rate; the inflammation was evaluated by leukocytes accumulation and cytokine levels in the wounds. The accumulation of neutrophil and macrophages in the wounds were determined by assaying myeloperoxidase and N acetyl-beta-D-glucosaminidase activities. The levels of TNF-alpha, CXCL-1 and CCL 2 in wound were evaluated by ELISA assay. Angiogenesis and collagen fibers deposition were evaluated histologically. RESULTS: We observed that macroscopic wound closure rate was improved in wounds from STRO-group than Control-group. The wounds treated with STRO promoted a reduction in leucocyte accumulation and in pro-inflammatory cytokine. Moreover, STRO treatment increased significantly the number of blood vessels and collagen fibers deposition, as compared to control group. CONCLUSION: Topical application of STRO display anti-inflammatory and angiogenic effects, as well as improvement in collagen replacement, suggesting a putative use of this herb for the development of phytomedicines to treat inflammatory diseases, including wound healing. PMID- 29019592 TI - The influence of allopurinol and post-conditioning on lung injuries induced by lower-limb ischemia and reperfusion in Wistar rats. AB - PURPOSE: To analyze the effects of allopurinol and of post-conditioning on lung injuries induced by lower-limb ischemia and reperfusion. METHODS: Thirty rats were used. They were divided in 5 groups: (1) group A: abdominal aortic dissection only, (2) group B: ischemia and reperfusion, (3) group C: administered allopurinol (100mg/Kg) a few hours before procedure, (4) group D: post conditioned and (5) group E: administered allopurinol and post-conditioned. With the exception of group A, all groups were submitted to infrarenal aortic ischemia for 2 hours, and reperfusion for 72 hours. After euthanasia, lungs were removed for histological analysis. They were graded under two scores: pulmonary injury (neutrophil infiltration, interstitial edema, vascular congestion, and destruction of lung architecture) and lymphocytic score (neutrophil infiltration, lymphoid aggregate and secondary follicle). RESULTS: On the pulmonary injury score, the degree of injury was smaller than in groups D and E, when compared to group B, p<0.05. Group C did not obtain the same result (p>0,05). On the lymphocytic score, there was no statistic difference among groups, p>0.05. CONCLUSION: Both post-conditioning and the combination of allopurinol and post conditioning were effective in remote lung protection induced by lower-limbs I/R. When used in isolation, allopurinol showed no protective effect. PMID- 29019593 TI - Effects of folic acid administration on testicular ischemia/reperfusion injury in rats. AB - PURPOSE: To determine the effect of folic acid (FA) on experimental testicular ischemia/reperfusion (I/R) in rats. METHODS: Sixty male Wistar rats were randomly divided into 6 groups. The control group received physiologic saline orally. The sham-operated group received physiologic saline orally then exposed to midline laparotomy without clamping the IR. The I/R rats received oral gavage of the saline then subjected to 1h ischemia /24h reperfusion, period. In folic acid (2mg/kg+IR) rats received oral gavage of the FA (2mg/kg) then subjected to 1h I/24h R. groups 5-6 received FA (5 and 10 mg/kg), then subjected to 1 h I/24 h, respectively. At the end of the study, semen samples were collected for spermatozoa characteristics. The left testis was removed for histological analysis and superoxide dismutase (SOD), malondialdehyde (MDA) and glutathione peroxidase (GPx) measurement. RESULTS: Spermatozoa mobility, mortality (%) significantly decreased in I/R group (P<0.05). Dose dependent increase observed on spermatozoa mobility, mortality (%) using different levels of the FA (2, 5 and 10 mg/kg) treated rat (P<0.05). Tissue MDA levels significantly increased in I/R rat (P<0.05) while FA (2, 5 and 10mg/kg) in a dose dependent manner decreased I/R induced MDA (P<0.05). Experimental I/R significantly decreased SOD and GPx activity (P<0.05). Administration of the FA (2, 5 and 10mg/kg) significantly increased tissue SOD and GPx activity in I/R rat (P<0.05). Seminiferous tubules degenerated and loss of spermatogenesis with few spermatocytes was observed in degenerated testis tubules in I/R rat. Orally administration of the FA (5 and 10 mg/kg) improved testis characteristics with few normal seminiferous tubules and spermatocyte in seminiferous tubules in experimental I/R-induced rat. CONCLUSION: The treatment of folic acid had a benefit effect against ischemia-reperfusion. PMID- 29019594 TI - Allogeneic mesenchymal stem cells and xenogenic platelet rich plasma, associated or not, in the repair of bone failures in rabbits with secondary osteoporosis. AB - PURPOSE: To assess the efficacy of allogeneic mesenchymal stem cells and xenogenic platelet rich plasma in the treatment of bone failure of osteoporotic rabbits secondary to estrogenic deprivation and iatrogenic hypercortisolism. METHODS: Eight female rabbits underwent ovarian resection and corticoid therapy to induce clinical status of osteoporosis. Four failures were produced in the tibiae, with each failure being treated with hemostatic sponge, allogenic mesenchymal stem cells, xenogenic platelet-rich plasma and the association between both. The animals were divided into two groups, evaluated radiographically and histopathologically at 30 and 60 days post treatment. RESULTS: A radiographically confirmed consolidation of bone failures treated with allogeneic mesenchymal stem cells, associated with the histopathological image of mature and immature bone tissue, without evidence of osteopenia, was compared with the other groups, in which radiolucent failures with osteopenia and fibrosis were still present, denoting the satisfactory effect of the first treatment in detriment to the others. CONCLUSION: The treatment of bone failures of rabbits with secondary osteoporosis with allogeneic mesenchymal stem cells induced greater bone consolidation with mature and immature bone tissue production (p<0.01), when compared to the other treatments. PMID- 29019595 TI - Effects of local alendronate administration on bone defect healing. Histomorphometric and radiological evaluation in a rabbit model. AB - PURPOSE: To performed a histomorphometric and radiological study to evaluate the effects of alendronate sodium administered locally in mandibular bone defects created in rabbits. METHODS: Two circular defects 5 mm in diameter were created bilaterally in the mandibular corpus of 20 New Zealand rabbits (i.e., four defects per animal). Each defect received one of four treatments: no treatment (EC group), alendronate irrigation (AL group), autogenous bone grafting (AG group), or alendronate irrigation with autogenous bone grafting (AL+AG group). Histomorphometric and radiological assessments were conducted at 4 and 8 weeks after surgery. RESULTS: Between-group comparisons of the new bone area, the value of the AL+AG group was significantly lower thanthe remaining three groups at 4 weeks postoperatively. In all groups, the new bone area was significantly larger at 8 weeks than at 4 weeks. The residual graft area at 4 and 8 weeks was significantly higher in the AL+AG group than in the AG group, although it was significantly smaller at 8 weeks than at 4 weeks in both these groups. CONCLUSION: The use of alendronate sodium in conjunction with autogenous bone grafting improves the osteoconductive properties of the graft, enhances graft retention in the defect, and improves ossification. PMID- 29019596 TI - Our journal on the 25th International Congress of History of Science and Technology. PMID- 29019597 TI - The botanist George Gardner and his impressions of slave culture in Brazil: Rio de Janeiro, 1810-1850. AB - This article analyzes the English botanist George Gardner's trip to Brazil during the 1830s. After graduating from the University of Glasgow Gardner was influenced by his teacher and by readings of contemporary naturalists and set off for Brazil in March of 1836, arriving two months later in Rio de Janeiro. The article presents Gardner's impressions of slavery in Brazil, in an attempt to unveil the symbolic universe of a play he witnessed and described, which took place on a farm in Rio de Janeiro on Christmas night. By describing black slavery in its routes across the Atlantic, we compare this event with other similar happenings in Brazil and in Trinidad and Tobago. PMID- 29019598 TI - The evolutionist debate in Spain during the nineteenth century: a re-examination. AB - This article re-examines the research on evolutionism in Spain and updates knowledge on this topic in light of the work of Thomas Glick, the more philosophical work of Diego Nunez and contributions in recent years from the Latin American network of historians of biology and evolution, who have dealt with the more polemical aspects of the reception of evolution theory. It includes new arguments, such as identification of the drawings in El Museo Universal, whose Lamarckian or Darwinian nature has been a subject of ongoing debate. It also covers the crucial role of the acceptance of Haeckel's work in Spain in comparison to the weaker support for a strictly Darwinian perspective, the role of the Spanish histology school, and the impact of evolutionism on literature. PMID- 29019599 TI - The thalidomide tragedy: the struggle for victims' rights and improved pharmaceutical regulation. AB - The thalidomide tragedy in the late 1950s was a watershed moment for pharmaceutical regulation. New uses for this medication are being researched and implemented today. This article revisits the history of thalidomide and its consequences for regulation and for victims' rights in Brazil, based on a literature review, documentary analysis, and newspaper reports. The events highlighted herein show the lack of strong standards for safe medication use, as well as how the tragedy was transformed into a public problem through its divulgation in the press; the article also shows that the increasing mobilization of victims was essential in pushing for more effective drug regulations. PMID- 29019600 TI - The evaluation of scientific productivity. AB - The paper examines the evaluation of scientific productivity. It analyzes the metrification of the evaluation of scientific production, as well as the historical construction, and current uses of scientific evaluation. It argues that this process contains a paradox: the more that metrics become impersonal, the less they are recognized by scientists. The study is divided into five sections: contextualization of the problematics of scientific evaluation; a description of the main stages in the institutionalization of metrification; an overview of the development of the main evaluation indexes; some examples of the application of these indexes; and analytical consequences and recommendations for the formulation of a new evaluation agenda. PMID- 29019601 TI - Negotiating boundaries: Encyclopedie, romanticism, and the construction of science. AB - Natural history in the eighteenth and nineteenth centuries has been widely debated in the field of the social sciences. This paper explores the social negotiation of boundaries in the Encyclopedie and romantic science. Highlighting the importance of imagination and aesthetics to the scientific realms, we perceive a different comprehension of the scientific field through the empirical study of how scientific demarcation is constructed. Works by Erasmus Darwin, Goethe, and Humboldt illustrate how reliable science was performed through atypical scientific methods. After pointing out the links between literary, artistic, and scientific works, we then debate a series of changes that framed the scientific imagery of romantic and encyclopaedic sciences. PMID- 29019602 TI - ["New plants that scholars do not know:" scientific exploration of nature in Portuguese East Asia, 1768-1808]. AB - As Portugal lost most of its conquests to the Dutch, Portuguese East Asia was reduced to the remaining trading posts (feitorias) and Brazil became the center of attention for colonial policies. Consequently, during the eighteenth century the Portuguese crown did not express greater interest in developing native Eastern knowledge of nature. These interests were tied to goals involving reconfiguration of the economy of the Brazilian colonies. The idea to cultivate economically important Eastern species such as pepper, nutmeg, cinnamon, cloves, teak, and sandalwood in Brazil took shape, but was not immediately successful. This article examines this attempt to extend Portugal's scientific network to the East, as well as the process of transplanting these species. PMID- 29019603 TI - [The influence of Naturphilosophie in nineteenth-century science: electromagnetism and energy]. AB - Phenomena involving electromagnetism and conservation of energy during the nineteenth century did not fit the reigning Newtonian paradigm. Among scholars, there was the need to explain such facts considering "something more" that had not yet been expressed. Through this explanation, Naturphilosophie, the philosophical branch associated with the German romantic movement of the nineteenth century, seems to offer new ways of understanding the sciences. In this article, we present main aspects of the work of Schelling, the main exponent of Naturphilosophie, and how his assumptions were inserted into the physical sciences to explain electromagnetism and conservation of energy. PMID- 29019604 TI - [Pangenesis, genes, epigenesis]. AB - In 1868, Darwin published his book The variation of animals and plants under domestication, which laid out his theory of heredity. This included the assumption that development was essential to understanding the evolutionary process. This present article reassesses the Darwinian theory of pangenesis in order to revisit its historical value. The conclusion is that the theory of pangenesis was well-suited to its time, and additionally, reflections of this assumption can be found in work in new areas known as evolutionary biology of development (evo-devo) and epigenetics. PMID- 29019605 TI - [The aesthetics of degeneration and expressions of the alienated: readings from Julio Dantas at the Rilhafoles Hospital]. AB - The proposal of this article is to briefly present how artistic expressions of the alienated appear as a discursive element in medical and critical readings of Julio Dantas, starting with his thesis, Pintores e poetas de Rilhafolles, which he presented in 1900 as the conclusion to his medicine course in Lisbon. This particularly involves investigating the methods Dantas used in his invested and conceptual propositions on this topic, considering that his interests responded to very specific issues: the characteristics and forms of social degeneration. The article also reviews some of the reverberations in the social and artistic environments that were insulted by the publication of the thesis. PMID- 29019606 TI - [Medicine is a joke: humorous depictions of physicians in the Santuario da Trindade newspaper]. AB - This article analyzes representations of medical knowledge in Goias in the early decades of the twentieth century through anecdotes and articles in the Catholic newspaper Santuario da Trindade, which circulated from 1922 to 1931. The anecdotes reflect a certain distancing from the modernization of medicine and ridicule medical science, demonstrating what Bakhtin characterized as the irreverence of popular culture in relation to serious institutions. On the other hand, medical knowledge was greatly esteemed in the paper's articles, and served to legitimize the moralizing discourse of its editors. Therefore, in the same newspaper this knowledge was simultaneously represented respectfully and mocked, revealing the complexity of how changes in medical practices during the period were absorbed. PMID- 29019607 TI - [European representations of birth control and abortions in Islamic societies and harems in the modern period]. AB - Throughout the modern period, Islamic women (whether they lived in palaces or normal houses) resorted to measures to prevent conception or to induce abortion when pregnancy occurred. They used herbs and abortifacient drugs or relied on help from other women to eliminate unwanted pregnancies. Such practices were recorded by Europeans - in some cases, doctors - who traveled to Islamic regions and described these scenes in their narratives. In addition to abortions, infanticide was also observed in the imperial palaces. Here we discuss how these sources described birth control, and how they investigated the lascivious harem, a recurring trope in orientalist literature, from a medical perspective. PMID- 29019608 TI - International expositions: a historiographic approach from Latin America. AB - This essay examines the historiography of international exhibitions, seen as geopolitical phenomena of modernity to which are associated the rise of middle classes, nationalist and colonialist movements, as well as an exhibitionary network connecting distinct spaces and times. Most of the recent studies analyses this repertoire and this pattern, and their relationship with political, economic, social and cultural issues. This study stresses, among ongoing approaches, the Latin American work - still barely visible or integrated into a field which is already consolidated -, and suggests how its visibility can be improved. PMID- 29019609 TI - [A reading of gender: representations of normality in the magazine Vamos Ler!, 1936-1948]. AB - This research note is the result of an investigation into the circulation of normality as a category of mental health among the lay population. Based on the hypothesis that the appropriation of discourse from medical categories is marked by a polyphony of meanings and not by homogeneity, this project analyzed the variety magazine Vamos Ler! (1936-1948), which featured active participation by its readers in correspondence sections. The subjectivity contained in the letters published in the magazine reveals that the medical discourse was not hegemonic in the lay definition of normality, emphasizing the presence of other discourses (including the experiences of individual readers) which assumed the condition of truth in constructing representations of normal men and women. PMID- 29019610 TI - On "Colonial scientific-medical documentary films and the legitimization of an ideal state in post-war Spain," or the importance of being cited. PMID- 29019611 TI - On the right to not cite, and not being deceivingly lynched and libeled because of it. PMID- 29019613 TI - Uncommon cause of dyspnoea after percutaneous closure of the left atrial appendage. PMID- 29019612 TI - Unveiling transthyretin cardiac amyloidosis and its predictors among elderly patients with severe aortic stenosis undergoing transcatheter aortic valve replacement. AB - Aims: Transthyretin cardiac amyloidosis (ATTR-CA) has been reported in patients with aortic stenosis (AS) but its prevalence and phenotype are not known. We examine elderly patients with severe symptomatic AS undergoing transcatheter aortic valve replacement (TAVR) and determine the prevalence and phenotype of ATTR-CA non-invasively. Methods and results: We performed technetium-99m pyrophosphate (99mTc-PYP) cardiac scintigraphy prospectively on patients who underwent TAVR, to screen for ATTR-CA. Transthoracic echocardiography and speckle strain imaging were performed. We assessed the association of several parameters with ATTR-CA using multivariable logistic regression and constructed receiver operating curves to evaluate the best predictors of ATTR-CA. Among 151 patients (mean age 84 +/- 6 years, 68% men), 16% (n = 24) screened positive for ATTR-CA with 99mTc-PYP scintigraphy. Compared with patients without ATTR-CA, ATTR-CA patients had a thicker interventricular septum (1.3 vs. 1.1 cm, P = 0.007), higher left ventricular (LV) mass index (130 vs. 98 g/m2, P = 0.002), and lower stroke volume index (30 vs. 36 mL/m2, P = 0.009). ATTR-CA patients had advanced diastolic dysfunction with higher E/A ratio (2.3 vs. 0.9, P = 0.001) and lower deceleration time (176 vs. 257 ms, P < 0.0001); impairment in systolic function with lower ejection fraction (48% vs. 56%, P = 0.011), myocardial contraction fraction (26 vs. 41, P < 0.0001), and average of lateral and septal mitral annular tissue Doppler S' (4.0 vs. 6.6 cm/s, P < 0.0001). While ATTR-CA patients had more impaired global longitudinal strain (-12 vs. -16%, P = 0.007), relative apical longitudinal strain was the same regardless of ATTR-CA diagnosis (0.98 vs. 0.98, P = 0.991). Average S' best predicted ATTR-CA in multivariable logistic regression (odds ratio 16.67 per 1 cm/s decrease with AUC 0.96, 95% confidence interval 0.90-0.99, P = 0.002) with a value <=6 conferring 100% sensitivity for predicting a positive 99mTc-PYP amyloid scan. Conclusions: Transthyretin cardiac amyloidosis is prevalent in 16% of patients with severe calcific AS undergoing TAVR and is associated with a severe AS phenotype of low-flow low-gradient with mildly reduced ejection fraction. Average tissue Doppler mitral annular S' of < 6 cm/s may be a sensitive measure that should prompt a confirmatory 99mTc-PYP scan and subsequent testing for ATTR-CA. Prospective assessment of outcomes after TAVR is needed in patients with and without ATTR-CA. PMID- 29019616 TI - Dangerous relationships: aortic stenosis and transthyretin cardiac amyloidosis. PMID- 29019614 TI - Associations of serum potassium levels with mortality in chronic heart failure patients. AB - Aims: Medication prescribed to patients suffering from chronic heart failure carries an increased risk of impaired potassium homeostasis. We examined the relation between different levels of serum potassium and mortality among patients with chronic heart failure. Methods and results: From Danish National registries, we identified 19 549 patients with a chronic heart failure diagnosis who had a measurement of potassium within minimum 90 days after initiated medical treatment with loop diuretics and angiotensin converting enzyme inhibitors or angiotensin II receptor blockers. All-cause mortality was examined according to eight predefined potassium levels: 2.8-3.4 mmol/L, 3.5-3.8 mmol/L, 3.9-4.1 mmol/L, 4.2 4.4 mmol/L, 4.5-4.7 mmol/L, 4.8-5.0 mmol/L, 5.1-5.5 mmol/L, and 5.6-7.4 mmol/L. Follow-up was 90 days from potassium measurement. We estimated the risk of all cause mortality using multivariable adjusted Cox proportional hazard model, with normal serum potassium level at 4.2-4.4 mmol/L as reference. After 90 days, the mortality in the eight strata was 14.4, 8.0, 6.3, 5.0, 5.8, 7.9, 10.3, and 21.1% respectively. In multivariable adjusted analysis, patients with potassium levels of 2.8-3.4 mmol/L [hazard ratio (HR): 3.16; confidence interval (CI): 2.43-4.11], 3.5-3.8 mmol/L (HR: 1.62; CI: 1.31-1.99), 3.9-4.1 mmol/L (HR: 1.29; CI: 1.08 1.55), 4.8-5.0 mmol/L (HR: 1.34; CI: 1.10-1.63), 5.1-5.5 mmol/L (HR: 1.60; CI: 1.29-1.97), and 5.6-7.4 mmol/L (HR: 3.31; CI: 2.61-4.20) had an increased risk of all-cause mortality. Conclusion: Levels within the lower and upper levels of the normal serum potassium range (3.5-4.1 mmol/L and 4.8-5.0 mmol/L, respectively) were associated with a significant increased short-term risk of death in chronic heart failure patients. Likewise, potassium below 3.5 mmol/L and above 5.0 mmol/L was also associated with increased mortality. PMID- 29019617 TI - Serum potassium in patients with chronic heart failure: once we make a U-turn where should we go? PMID- 29019615 TI - Haemodynamic profiles of children with end-stage heart failure. AB - Aims: To evaluate associations between haemodynamic profiles and symptoms, end organ function and outcome in children listed for heart transplantation. Methods and results: Children <18 years listed for heart transplant between 1993 and 2013 with cardiac catheterization data [pulmonary capillary wedge pressure (PCWP), right atrial pressure (RAP), and cardiac index (CI)] in the Pediatric Heart Transplant Study database were included. Outcomes were New York Heart Association (NYHA)/Ross classification, renal and hepatic dysfunction, and death or clinical deterioration while on waitlist. Among 1059 children analysed, median age was 6.9 years and 46% had dilated cardiomyopathy. Overall, 58% had congestion (PCWP >15 mmHg), 28% had severe congestion (PCWP >22 mmHg), and 22% low cardiac output (CI < 2.2 L/min/m2). Twenty-one per cent met the primary outcome of death (9%) or clinical deterioration (12%). In multivariable analysis, worse NYHA/Ross classification was associated with increased PCWP [odds ratio (OR) 1.03, 95% confidence interval (95% CI) 1.01-1.07, P = 0.01], renal dysfunction with increased RAP (OR 1.04, 95% CI 1.01-1.08, P = 0.007), and hepatic dysfunction with both increased PCWP (OR 1.03, 95% CI 1.01-1.06, P < 0.001) and increased RAP (OR 1.09, 95% CI 1.06-1.12, P < 0.001). There were no associations with low output. Death or clinical deterioration was associated with severe congestion (OR 1.6, 95% CI 1.2-2.2, P = 0.002), but not with CI alone. However, children with both low output and severe congestion were at highest risk (OR 1.9, 95% CI 1.1 3.5, P = 0.03). Conclusion: Congestion is more common than low cardiac output in children with end-stage heart failure and correlates with NYHA/Ross classification and end-organ dysfunction. Children with both congestion and low output have the highest risk of death or clinical deterioration. PMID- 29019618 TI - What can haemodynamic profiles teach us about heart failure in the paediatric population? PMID- 29019620 TI - John McMurray MD FESC. PMID- 29019619 TI - Special issues in heart failure: pulmonary hypertension, deranged potassium levels, and haemodynamic profiles. PMID- 29019621 TI - Heartfailurematters.org. PMID- 29019622 TI - The Geoffrey Rose Lecture 2017. PMID- 29019623 TI - Andrew Hurst Henderson, 1930-2017. PMID- 29019624 TI - The ESC Textbook of Vascular Biology. PMID- 29019625 TI - Holger Thiele MD. PMID- 29019626 TI - The Challenges of Caring for Children with Special Health Care Needs: Pain Assessment and Team-Based Care. PMID- 29019627 TI - Dry Drowning: Myths and Misconceptions. AB - Drowning is a leading cause of death in children and is highly preventable. More than 10 people die of drowning in the United States each day, most of them adults. Rates of drowning are highest in children given their developmental vulnerabilities. Drowning incidents that result in cardiopulmonary arrest have a straightforward emergency clinical response, but the management approaches to the more common scenario of brief, nonfatal submersion is less clear. Clinicians must make clinical-care decisions based on evidence to provide safe and effective care in a timely manner and to help families avoid unnecessary anxiety. Such anxiety has been heightened by reports of unanticipated "dry drowning" appearing in the media. This article discusses this concept and provides guidance for clinicians. [Pediatr Ann. 2017;46(10):e354-e357.]. PMID- 29019628 TI - Health Care Disparities Among Children with Special Health Care Needs. PMID- 29019629 TI - Health Disparities and Child Development After Prematurity. AB - There is increased recognition that preterm neonates require sequential surveillance to capture the spectrum of coordination, communication, learning, and behavior regulation disorders that may occur in the first 5 years of life and beyond. In particular, the framework of follow-up needs to go beyond the detection of cerebral palsy, blindness, and deafness in the first 2 years of life for only those at highest preterm risk (ie, <28 weeks gestation, with combinations of severe cranial sonographic abnormalities, bronchopulmonary dysplasia, and retinopathy of prematurity). In addition, there are numerous barriers for diverse families in accessing quality, comprehensive early intervention and early child education supports. This article highlights recent research on the long-term impact of preterm birth with a focus on disparities in resource access and in outcomes at entry to kindergarten and early educational trajectories. Across all degrees of prematurity, children from disadvantaged backgrounds face significant disparities both in access to comprehensive and continuous supports and in long-term academic outcomes. Ten key recommendations are provided for ensuring proactive management strategies for the long-term academic, behavioral, and social success of these at-risk children. [Pediatr Ann. 2017;46(10):e360-e364.]. PMID- 29019630 TI - Prolonged Hospital Discharge for Children with Technology Dependency: A Source of Health Care Disparities. AB - Children with ventilator assistance have been supported in living at home since 1981 when parental advocacy ushered in a change to Medicaid policy. As the population of children who use medical technology such as long-term ventilation increases, we must critically evaluate our systems for preparing families for home life. Discharge delays persist in the modern era because of fragmentation between hospital and home systems. These discharge delays result in children spending time in less developmentally rich environments, further exacerbating the health and development disparities of children with complex disabilities. In this article, we discuss the complication of hospital discharge and how it contributes to health and developmental disparities. We also describe a hospital-to-home transitional care model, which presents a home-like environment to provide developmental support while focusing on parental training, home nursing, and public-funding arrangements. [Pediatr Ann. 2017;46(10):e365-e370.]. PMID- 29019631 TI - Disparities in Life Course Outcomes for Transition-Aged Youth with Disabilities. AB - Close to 750,000 youth with special health care needs transition to adult health care in the United States every year; however, less than one-half receive transition-planning services. Using the "F-words" organizing framework, this article explores life course outcomes and disparities in transition-aged youth with disabilities, with a special focus on youth with autism, Down syndrome, and cerebral palsy. Despite the importance of transition, a review of the available literature revealed that (1) youth with disabilities continue to have poor outcomes in all six "F-words" domains (ie, function, family, fitness, fun, friends, and future) and (2) transition outcomes vary by race/ethnicity and disability. Professionals need to adopt a holistic framework to examine transition outcomes within a broader social-ecological context, as well as implement evidence-based transition practices to help improve postsecondary outcomes of youth with disabilities. [Pediatr Ann. 2017;46(10):e371-e376.]. PMID- 29019632 TI - Racial and Ethnic Health Disparities and Trauma-Informed Care for Children Exposed to Community Violence. AB - Racial and ethnic disparities in health outcomes and access have been consistently documented for a wide variety of physical and behavioral health conditions. Health inequities are most pronounced in areas with high levels of racial and ethnic segregation, where children and adolescents are also more likely to face economic inequality, which places them at high risk for exposure to neighborhood violence and traumatic loss. Community violence exposure (CVE) has been increasingly recognized as a prominent contributor to negative physical and mental health outcomes. CVE has been linked to children's risk for negative psychological outcomes, such as posttraumatic stress disorder, externalizing behavior, and internalizing symptoms, as well as obesity, asthma, and health-risk behaviors. Providers of pediatric care have opportunities to address CVE and related health disparities by developing trauma-informed systems that routinely screen for CVE, provide basic support for affected families, and link those in need to trauma-focused intervention. [Pediatr Ann. 2017;46(10):e377-e381.]. PMID- 29019633 TI - Behavioral Health Disparities Among Children and Youth with Special Health Care Needs. AB - The burden of mental health morbidity, disability, and mortality in children is not equally distributed across populations in the United States. The consequence is widespread differences in health status between certain groups of children that result in systematic behavioral health disparities. In the US, an estimated 12.8% of children (9.4 million) have a special health care need. Mental, emotional, and behavioral problems and disorders are widespread among children and youth with special health care needs (CYSHCN), but are often undetected and untreated despite the adverse consequences to children throughout the life course. CYSHCN experience behavioral health disparities in the prevalence of behavioral health problems and conditions, and in the access to needed services. Further investigation is required to fully identify behavioral health needs, the mechanisms contributing to the disparities, and effective strategies to prevent and provide interventions for CYSHCN. Investing in research and interventions is vital to reducing behavioral health disparities. [Pediatr Ann. 2017;46(10):e382 e386.]. PMID- 29019635 TI - Subpoenas and Law Enforcement Requests for Patient Information. PMID- 29019634 TI - Pain Assessment in Newborns, Infants, and Children. AB - Pain in children is underestimated and undertreated because of lack of pain assessment tools. Pain assessment depends on the cognitive development of the child being tested, clinical context, and pain typology. For children older than age 6 years, pain assessment is based on a self-report. For children younger than age 6 years, behavioral pain scales are needed to assess pain. Numerous pain scales exist. Many are reliable and some are recommended, but all have specific conditions for their use. In this article, we review the available pain scales for children from birth to adolescence. We provide the validity criteria of each pain scale to help caregivers use the adapted tools. We then propose a synthesis of the reliable tools to use based on the pain context. [Pediatr Ann. 2017;46(10):e387-e395.]. PMID- 29019636 TI - Dr. Bob. Going Viral: Getting the Bugs Out of Your Travel Plans. PMID- 29019638 TI - Spine Conditions: Foreword. PMID- 29019640 TI - Spine Conditions: Mechanical and Inflammatory Low Back Pain. AB - Mechanical low back pain (LBP) is an injury or derangement of an anatomic structure in the low back. When evaluating patients with LBP, clinicians should maintain clinical suspicion for vertebral fracture, cancer, and cauda equina syndrome. Management includes patient education focused on exercise, massage, and behavioral approaches such as cognitive behavioral therapy. Acupuncture can be an effective alternative and specific herbal supplements may provide short-term pain relief. The prognosis for patients with mechanical LBP is good. Inflammatory LBP is pain resulting from a systemic inflammatory condition, often referred to as axial spondyloarthritis. Ankylosing spondylitis is chronic inflammatory LBP characterized by early onset (mean age 24 years), with a higher prevalence in men. Five clinical parameters can help identify inflammatory LBP: improvement with exercise, pain at night, insidious onset, onset at younger than 40 years, and no improvement with rest. Management of inflammatory LBP typically includes nonsteroidal anti-inflammatory drugs and structured exercise programs, with emphasis on the involvement of a rheumatology subspecialist. Spondyloarthritis is associated with other rheumatic or autoimmune conditions, including rheumatoid arthritis, inflammatory bowel disease, and psoriasis. These should be considered when evaluating patients with inflammatory LBP. PMID- 29019639 TI - Spine Conditions: Cervical Spine Conditions. AB - There are a variety of causes of neck pain, including trauma and degenerative changes. The history of onset helps to direct evaluation, including the need for imaging or ancillary testing. Patterns of pain, weakness, and other specific physical examination findings also aid in diagnosis. Management of most soft tissue injuries involves early mobilization, whereas fractures are managed based on patterns of instability. Acute spinal cord injury requires emergent care, to include possible decompressive surgery. The role of hypothermia and corticosteroids in these patients remains unclear. Cervical radiculopathy (eg, disk herniation, arthritic changes) can be managed conservatively in most patients. Central cord compression, or myelopathy, often is overlooked but is a common condition among older patients. Although certain patients may benefit from surgery, many have a stable course or slow progression that can be managed nonsurgically. Rheumatoid arthritis can have significant effects on the cervical spine. Patients with inflammatory conditions may improve with steroids, nonsteroidal anti-inflammatory drugs, or biologic drugs, but these drugs rarely have lasting benefit in degenerative conditions. Stretching, strengthening, and other physical therapy modalities have been shown to be helpful for patients with chronic and acute but stable neck conditions. PMID- 29019641 TI - Spine Conditions: Lumbar Spinal Stenosis. AB - Lumbar spinal stenosis (LSS) is a frequent cause of chronic low back and lower extremity pain in older patients. Symptomatic LSS typically is described as neurogenic claudication consisting of pain, weakness, numbness, and/or fatigue arising in the back and radiating into the buttock, thigh, or lower leg. The diagnosis is complicated by lack of reliable clinical or x-ray criteria. North American Spine Society guidelines recommend magnetic resonance imaging study without contrast to confirm anatomic narrowing of the spinal canal or nerve root impingement. Conservative management options include exercise and drug therapy. Epidural injections can be considered for temporary symptom management. No studies show greater effectiveness of surgical intervention over conservative management in patients with mild to moderate symptoms. Progressive symptoms, emergence of frank neurologic deficit, or findings consistent with cauda equina syndrome are indications to pursue surgical evaluation. Decompression surgery without fusion typically is recommended in the absence of spondylolisthesis or other spinal instability. Active rehabilitation is likely more effective than usual care for improvement in functional status within 12 months postoperatively without adverse events. Approximately one-third to one-half of patients with mild to moderate LSS symptoms may have a favorable prognosis. PMID- 29019642 TI - Spine Conditions: Occupational Spine Conditions. AB - Neck and back conditions have significant effects on employee health and productivity. More than $7 billion in lost revenue in the United States annually can be attributed to workplace back pain among employees ages 40 to 65 years. According to the Bureau of Labor Statistics, in 2012 back pain was the most prevalent musculoskeletal condition resulting in workplace absenteeism. The incidence of these conditions is higher among individuals in certain professions, such as bus drivers, police officers, and correctional officers. Risk factors include obesity, depression, nicotine dependence, and alcohol abuse. There is limited evidence about whether modifying risk factors decreases the incidence of neck and back conditions. Specific efforts to reduce the burden in the workplace have shown mixed results. Use of simple interventions, such as braces and orthotics, has not consistently shown benefit. In addition, limited data show minimal or no evidence of effective prevention or management with back school programs and instruction on lifting techniques. The most consistent data support regular exercise as a method to prevent back pain. However, attempts to include exercise in workplace activities have shown mixed results. Lower rates of workplace absenteeism have been show to result from employee education on these issues. PMID- 29019643 TI - Skeletal Diversity in Combinatorial Fashion: A New Format for the Castagnoli Cushman Reaction. AB - A new format for the Castagnoli-Cushman reaction of structurally diverse dicarboxylic acids, amines, and aldehydes in the presence of acetic anhydride as dehydrating agent is described. The reaction is distinctly amenable to parallel format: the combinatorial array of 180 reactions delivered 157 products of >85% purity without chromatographic purification (of this number, 143 compounds had >94% purity). The new method offers a convenient preparation of the skeletally and peripherally diverse, lead- and druglike gamma- and delta-lactam carboxylic acids with high diastereoselectivity in combinatorial fashion. PMID- 29019644 TI - Charge Transport Limitations in Perovskite Solar Cells: The Effect of Charge Extraction Layers. AB - Understanding the charge transport characteristics and their limiting factors in organolead halide perovskites is of great importance for the development of competitive and economically advantageous photovoltaic systems derived from these materials. In the present work, we examine the charge carrier mobilities in CH3NH3PbI3 (MAPI) thin films obtained from a one-step synthesis procedure and in planar n-i-p devices based on these films. By performing time-of-flight measurements, we find mobilities around 6 cm2/V s for electrons and holes in MAPI thin films, whereas in working solar cells, the respective effective mobility values are reduced by 3 orders of magnitude. From complementary experiments on devices with varying thicknesses of electron and hole transport layers, we identify the charge extraction layers and the associated interfaces rather than the perovskite material itself as the major limiting factors of the charge carrier transport time in working devices. PMID- 29019647 TI - 126 264 Assigned Chemical Formulas from an Atmospheric Pressure Photoionization 9.4 T Fourier Transform Positive Ion Cyclotron Resonance Mass Spectrum. AB - Here, we present atmospheric pressure photoionization (APPI) Fourier transform ion cyclotron resonance (FTICR) mass analysis of a volcanic asphalt sample by acquiring data for 20 Da wide mass segments across a 1000 Da range, stitched into a single composite mass spectrum, and compare to a broad-band mass spectrum for the same sample. The segmented spectrum contained 170 000 peaks with magnitude greater than 6sigma of the root-mean-square (rms) baseline noise, for which 126 264 unique elemental compositions could be assigned. Approximately two-thirds of those compositions represent monoisotopic (i.e., chemically different) species. That complexity is higher than that for any previously reported mass spectrum and almost 3 times greater than that obtained from the corresponding broad-band spectrum (59 015). For the segmented mass spectrum, the signal-to-noise ratio (S/N) was significantly higher throughout the spectrum, but especially at the lower and upper ends of mass distribution relative to that of the near-Gaussian broad-band mass distribution. Despite this S/N improvement, mass measurement accuracy was noticeably improved only at lower masses. The increased S/N did, however, yield a higher number of peaks and higher dynamic range throughout the entire segmented spectrum relative to the conventional broad-band spectrum. The additional assigned peaks include higher heteroatom species, as well as additional radicals and isotopologues. Segmenting can require a significant investment in data acquisition and analysis time over broad-band spectroscopy (~1775% in this case) making it best suited for targeted analysis and/or when complete compositional coverage is important. Finally, the present segmented spectrum contains, to our knowledge, more assigned peaks than any spectrum of any kind (e.g., UV-vis, infrared, microwave, magnetic resonance, etc.). PMID- 29019646 TI - Noncanonical Roles of Lipids in Different Cellular Fates. AB - Lipids are a diverse class of biomolecules. The biosynthesis and transport of these molecules are controlled by a considerable number of proteins, which facilitate spatiotemporal regulation of lipids during different fundamental cellular processes. Although lipids are traditionally considered as molecules for energy storage and as structural components of membranes, they are being increasingly recognized for their signaling roles. There is a growing appreciation of lipids' chemical diversity, which approaches that of proteins. In this Perspective, we discuss recent studies that suggest novel functions for distinct lipid species during different cellular processes. In particular, we discuss findings from our laboratory that illuminate the involvement of ceramides, polyunsaturated triacylglycerols, and very long chain fatty acids in different cellular fates. We also highlight recent innovative methods that have enabled the recognition of previously unknown lipid classes and/or roles of these molecules in different biological processes. We envision that advances in lipid identification, visualization, and perturbation will pave the way for broader investigations into this fascinating and influential class of biomolecules. PMID- 29019645 TI - Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water. AB - Understanding of structural, electrical, and gravimetric peculiarities of water vapor interaction with ion-intercalated MXenes led to design of a multimodal humidity sensor. Neutron scattering coupled to molecular dynamics and ab initio calculations showed that a small amount of hydration results in a significant increase in the spacing between MXene layers in the presence of K and Mg intercalants between the layers. Films of K- and Mg-intercalated MXenes exhibited relative humidity (RH) detection thresholds of ~0.8% RH and showed monotonic RH response in the 0-85% RH range. We found that MXene gravimetric response to water is 10 times faster than their electrical response, suggesting that H2O-induced swelling/contraction of channels between MXene sheets results in trapping of H2O molecules that act as charge-depleting dopants. The results demonstrate the use of MXenes as humidity sensors and infer potential impact of water on structural and electrical performance of MXene-based devices. PMID- 29019648 TI - Atmospheric Pressure Drift Tube Ion Mobility-Orbitrap Mass Spectrometry: Initial Performance Characterization. AB - Atmospheric pressure drift tube ion mobility spectrometry (AP-DTIMS) was coupled with Fourier transform Orbitrap mass spectrometry. The performance capabilities of this versatile new arrangement were demonstrated for different DTIMS ion gating operation modes and Orbitrap mass spectrometer parameters with regard to sensitivity and resolving power. Showcasing the optimized AP-DTIMS-Orbitrap MS system, isobaric peptide and sugar isomers were successfully resolved and the identities of separated species validated by high-energy collision dissociation experiments. PMID- 29019649 TI - Dietary Fatty Acids Control the Species of N-Acyl-Phosphatidylethanolamines Synthesized by Therapeutically Modified Bacteria in the Intestinal Tract. AB - Engineering the gut microbiota to produce specific beneficial metabolites represents an important new potential strategy for treating chronic diseases. Our previous studies with bacteria engineered to produce N-acyl phosphatidylethanolamines (NAPEs), the immediate precursors of the lipid satiety factors N-acyl-ethanolamides (NAEs), found that colonization of these bacteria inhibited development of obesity in C57BL/6J mice fed a high fat diet. Individual NAE species differ in their bioactivities. Intriguingly, colonization by our engineered bacteria resulted in increased hepatic N-stearoyl-ethanolamide (C18:0NAE) levels despite the apparent inability of these bacteria to biosynthesize its precursor N-stearoyl-phosphatidylethanolamine (C18:0NAPE) in vitro. We therefore sought to identify the factors that allowed C18:0NAPE biosynthesis by the engineered bacteria after colonization of the intestinal tract. We found that the species of NAPE biosynthesized by engineered bacteria depends on the species of dietary fatty acids available in the intestine, suggesting a simple method to fine-tune the therapeutic effects of modified microbiota. PMID- 29019650 TI - Desalination and Nanofiltration through Functionalized Laminar MoS2 Membranes. AB - Laminar membranes of two-dimensional materials are excellent candidates for applications in water filtration due to the formation of nanocapillaries between individual crystals that can exhibit a molecular and ionic sieving effect, while allowing high water flux. This approach has been exemplified previously with graphene oxide, however these membranes suffer from swelling when exposed to liquid water, leading to low salt rejection and reducing their applicability for desalination applications. Here, we demonstrate that by producing thin (~5 MUm) laminar membranes of exfoliated molybdenum disulfide (MoS2) in a straightforward and scalable process, followed by a simple chemical functionalization step, we can efficiently reject ~99% of the ions commonly found in seawater, while maintaining water fluxes significantly higher (~5 times) than those reported for graphene oxide membranes. These functionalized MoS2 membranes exhibit excellent long-term stability with no swelling and consequent decrease in ion rejection, when immersed in water for periods exceeding 6 months. Similar stability is observed when exposed to organic solvents, indicating that they are ideal for a variety of technologically important filtration applications. PMID- 29019651 TI - Combining Machine Learning and Nanofluidic Technology To Diagnose Pancreatic Cancer Using Exosomes. AB - Circulating exosomes contain a wealth of proteomic and genetic information, presenting an enormous opportunity in cancer diagnostics. While microfluidic approaches have been used to successfully isolate cells from complex samples, scaling these approaches for exosome isolation has been limited by the low throughput and susceptibility to clogging of nanofluidics. Moreover, the analysis of exosomal biomarkers is confounded by substantial heterogeneity between patients and within a tumor itself. To address these challenges, we developed a multichannel nanofluidic system to analyze crude clinical samples. Using this platform, we isolated exosomes from healthy and diseased murine and clinical cohorts, profiled the RNA cargo inside of these exosomes, and applied a machine learning algorithm to generate predictive panels that could identify samples derived from heterogeneous cancer-bearing individuals. Using this approach, we classified cancer and precancer mice from healthy controls, as well as pancreatic cancer patients from healthy controls, in blinded studies. PMID- 29019652 TI - Strong Carrier-Phonon Coupling in Lead Halide Perovskite Nanocrystals. AB - We highlight the importance of carrier-phonon coupling in inorganic lead halide perovskite nanocrystals. The low-temperature photoluminescence (PL) spectrum of CsPbBr3 has been investigated under a nonresonant and a nonstandard, quasi resonant excitation scheme, and phonon replicas of the main PL band have been identified as due to the Frohlich interaction. The energy of longitudinal optical (LO) phonons has been determined from the separation of the zero phonon band and phonon replicas. We reason that the observed LO phonon coupling can only be related to an orthorhombically distorted crystal structure of the perovskite nanocrystals. Additionally, the strength of carrier-phonon coupling has been characterized using the ratio between the intensities of the first phonon replica and the zero-phonon band. PL emission from localized versus delocalized carriers has been identified as the source of the observed discrepancies between the LO phonon energy and phonon coupling strength under quasi-resonant and nonresonant excitation conditions, respectively. PMID- 29019653 TI - Development of a Terpenoid-Production Platform in Streptomyces reveromyceticus SN 593. AB - Terpenoids represent the largest class of natural products, some of which are resources for pharmaceuticals, fragrances, and fuels. Generally, mass production of valuable terpenoid compounds is hampered by their low production levels in organisms and difficulty of chemical synthesis. Therefore, the development of microbial biosynthetic platforms represents an alternative approach. Although microbial terpenoid-production platforms have been established in Escherichia coli and yeast, an optimal platform has not been developed for Streptomyces species, despite the large capacity to produce secondary metabolites, such as polyketide compounds. To explore this potential, we constructed a terpenoid biosynthetic platform in Streptomyces reveromyceticus SN-593. This strain is unique in that it harbors the mevalonate gene cluster enabling the production of furaquinocin, which can be controlled by the pathway specific regulator Fur22. We simultaneously expressed the mevalonate gene cluster and subsequent terpenoid biosynthetic genes under the control of Fur22. To achieve improved fur22 gene expression, we screened promoters from S. reveromyceticus SN-593. Our results showed that the promoter associated with rvr2030 gene enabled production of 212 +/- 20 mg/L botryococcene to levels comparable to those previously reported for other microbial hosts. Given that the rvr2030 gene encodes for an enzyme involved in the primary metabolism, these results suggest that optimized expression of terpenoid-biosynthetic genes with primary and secondary metabolism might be as important for high yields of terpenoid compounds as is the absolute expression level of a target gene(s). PMID- 29019655 TI - Quantum Chemical Modeling of Cycloaddition Reaction in a Self-Assembled Capsule. AB - Dispersion-corrected density functional theory is used to study the cycloaddition reaction between phenyl acetylene and phenyl azide inside a synthetic, self assembled capsule. The capsule is first characterized computationally and a previously unrecognized structure is identified as being the most stable. Next, an examination of the free energies of host-guest complexes is conducted, considering all possible reagent, solvent, and solvent impurity combinations as guests. The experimentally observed relative stabilities of host-guest complexes are quite well reproduced, when the experimental concentrations are taken into account. Experimentally, the presence of the host capsule has been shown to accelerate the cycloaddition reaction and to yield exclusively the 1,4 regioisomer product. Both these observations are reproduced by the calculations. A detailed energy decomposition analysis shows that reduction of the entropic cost of bringing together the reactants along with a geometric destabilization of the reactant supercomplex are the major contributors to the rate acceleration compared to the background reaction. Finally, a sensitivity analysis is conducted to assess the stability of the results with respect to the choice of methodology. PMID- 29019656 TI - Adsorption of Insecticidal Crystal Protein Cry11Aa onto Nano-Mg(OH)2: Effects on Bioactivity and Anti-Ultraviolet Ability. AB - The traditional Bacillus thuringiensis (Bt) formulations for field applications are not resistant to harsh environmental conditions. Hence, the active ingredients of the Bt bioinsecticides could degrade quickly and has low anti ultraviolet ability in the field, which significantly limits its practical application. In the present study, we developed an efficient and stable delivery system for Bt Cry11Aa toxins. We coated Cry11Aa proteins with Mg(OH)2 nanoparticles (MHNPs), and then assessed the effects of MHNPs on bioactivity and anti-ultraviolet ability of the Cry11Aa proteins. Our results indicated that MHNPs, like "coating clothes", could effectively protect the Cry protein and enhance the insecticidal bioactivity after UV radiation (the degradation rate was decreased from 64.29% to 16.67%). In addtion, MHNPs could improve the proteolysis of Cry11Aa in the midgut and aggravate the damage of the Cry protein to the gut epithelial cells, leading to increased insecticidal activity against Culex quinquefasciatus. Our results revealed that MHNPs, as an excellent nanocarrier, could substantially improve the insecticidal bioactivity and anti-ultraviolet ability of Cry11Aa. PMID- 29019654 TI - Transition-Metal-Free Radical C(sp3)-C(sp2) and C(sp3)-C(sp3) Coupling Enabled by 2-Azaallyls as Super-Electron-Donors and Coupling-Partners. AB - The past decade has witnessed the rapid development of radical generation strategies and their applications in C-C bond-forming reactions. Most of these processes require initiators, transition metal catalysts, or organometallic reagents. Herein, we report the discovery of a simple organic system (2-azaallyl anions) that enables radical coupling reactions under transition-metal-free conditions. Deprotonation of N-benzyl ketimines generates semistabilized 2 azaallyl anions that behave as "super-electron-donors" (SEDs) and reduce aryl iodides and alkyl halides to aryl and alkyl radicals. The SET process converts the 2-azaallyl anions into persistent 2-azaallyl radicals, which capture the aryl and alkyl radicals to form C-C bonds. The radical coupling of aryl and alkyl radicals with 2-azaallyl radicals makes possible the synthesis of functionalized amine derivatives without the use of exogenous radical initiators or transition metal catalysts. Radical clock studies and 2-azaallyl anion coupling studies provide mechanistic insight for this unique reactivity. PMID- 29019657 TI - trans-10,cis-12-Conjugated Linoleic Acid Affects Expression of Lipogenic Genes in Mammary Glands of Lactating Dairy Goats. AB - The molecular mechanisms on milk fat depression (MFD) in response to trans-10,cis 12-conjugated linoleic acid (t10,c12-CLA) supplementation in ruminants were elucidated in this research with dairy goats. A total of 30 2-year-old Xinong Saanen dairy goats [40 +/- 5 days in milk (DIM)] at peak lactation stage were assigned to a 3 * 3 Latin square design (14 day treatment period, followed with 14 day washout). Three CLA treatments included (a) control, fed the basal diet only without CLA supplementation; (b) orally supplemented with 8 g/day of lipid encapsulated CLA (low dose, CLA-1); and (c) orally supplemented with 16 g/day of lipid-encapsulated CLA (high dose, CLA-2). Expression levels of fatty acid metabolism genes in the mammary tissues were analyzed by real-time quantitative polymerase chain reaction (RT-qPCR) in three goats on day 1 and the other three goats on day 14 in each group after the discontinuation of CLA treatment in the third experimental period. Dietary supplementation of CLA led to a significant decrease of milk fat compared to the control (p < 0.05). Milk fat concentrations in CLA-1 and CLA-2 groups were 2.74 and 2.42%, respectively, while the milk fat concentration in the control group was 2.99%. Decreases in short- and medium chain fatty acids (<16 carbons) and increases in unsaturated fatty acids were observed in the CLA-2 group (p < 0.05). The desaturation indexes of C16 and C18 fatty acids were obviously increased (p < 0.01). RT-qPCR results revealed decreases of the mRNA expression levels of SREBF1, PPARG, LPL, CD36, FABP3, ACSL1, FASN, ACACA, DGAT2, TIP47, ADRP, and BTN1A1 genes in mammary glands (p < 0.05) and an increase of the SCD gene because of CLA supplementation (p < 0.05). In conclusion, t10,c12-CLA-induced MFD was possibly the result from the downregulation of genes involved in lipogenesis in goat mammary glands. PMID- 29019658 TI - Resonance Enhancement of Nonlinear Optical Scattering in Monolayer-Protected Gold Clusters. AB - Monolayer-protected metal clusters (MPCs) have recently gained significant research interest, since they are promising candidates for various applications in bioimaging and catalysis. Besides this, MPCs promise to aid in understanding the evolution of the metallic state from bottom-up principles. MPCs can be prepared with atomic precision, and their nonscalable properties (indicating molecule-like behavior) have been studied with a variety of techniques both theoretically and experimentally. Here, we present spectrally resolved second order nonlinear optical scattering experiments on thiolate-protected gold clusters (Au130(SR)50, Au144(SR)60, and Au500(SR)120). The three clusters share common resonance enhancement around 490 nm, which is ascribed to an interband transition. This indicates emerging metal-like properties, and we tentatively assign the onset of metal-like behavior somewhere between 102 and 130 gold atoms. PMID- 29019659 TI - Effect of Extended Conjugation of N-Heterocyclic Carbene-Based Sensitizers on the Performance of Dye-Sensitized Solar Cells. AB - We report the synthesis, characterization, and photovoltaic properties of four ruthenium complexes (CI101, CBTR, CB111, and CB108) having various N-heterocyclic carbene ancillary ligands, pyridine-imidazole, -benzimidazole, dithienobenzimidazole, and -phenanthroimidazole, respectively. These complexes were designed to investigate the effect of extended conjugation ordained from ring fusion on the power conversion efficiencies of the solar cells. The device sensitized by CB108, the pyridine-phenanthroimidazole conjugated complex, showed an improved efficiency (9.89%) compared to those of pyridine-benzimidazole conjugated system (CBTR, 9.72%) and the parent unfused ring system (CI101, 6.24%). Surprisingly, the sulfur-incorporated pyridine-dithienobenzimidazole system (CB111, 9.24%) exhibited a little lower efficiency than that of N719 (9.41%). The enhanced photovoltaic performance of CB108 was mainly attributed to the increase in electron lifetime and diffusion length confirmed by the electrochemical impedance spectroscopy. PMID- 29019661 TI - Venlafaxine in Embryos Stimulates Neurogenesis and Disrupts Larval Behavior in Zebrafish. AB - Venlafaxine, a widely prescribed antidepressant, is a selective serotonin and norepinephrine reuptake inhibitor in humans, and this drug is prevalent in municipal wastewater effluents. While studies have shown that this drug affects juvenile fish behavior, little is known about the developmental impact on nontarget aquatic animals. We tested the hypothesis that venlafaxine deposition in the egg, mimicking maternal transfer of this antidepressant, disrupts developmental programming using zebrafish (Danio rerio) as a model. Embryos (1-4 cell stage) were microinjected with either 1 or 10 ng venlafaxine, which led to a rapid reduction (90%) of this drug in the embryo at hatch. There was a concomitant increase in the concentration of the major metabolite o desmethylvenlafaxine during the same period. Embryonic exposure to venlafaxine accelerated early development, increased hatching rate and produced larger larvae at 5 days post fertilization. Also, there was an increase in neuronal birth in the hypothalamus, dorsal thalamus, posterior tuberculum, and the preoptic region, and this corresponded with a higher spatial expression of nrd4, a key marker of neurogenesis. The venlafaxine-exposed larvae were less active and covered shorter distance in a light and dark behavioral test compared to the controls. Overall, zygotic exposure to venlafaxine disrupts early development, including brain function, and compromises larval behavior, suggesting impact of this drug on developmental programming in zebrafish. PMID- 29019662 TI - Exceptionally High Electric Double Layer Capacitances of Oligomeric Ionic Liquids. AB - Electric double layer (EDL) capacitors are promising as next-generation energy accumulators if their capacitances and operation voltages are both high. However, only few electrolytes can simultaneously fulfill these two requisites. Here we report that an oligomeric ionic liquid such as IL4TFSI with four imidazolium ion units in its structure provides a wide electrochemical window of ~5.0 V, similar to monomeric ionic liquids. Furthermore, electrochemical impedance measurements using Au working electrodes demonstrated that IL4TFSI exhibits an exceptionally high EDL capacitance of ~66 MUF/cm2, which is ~6 times as high as those of monomeric ionic liquids so far reported. We also found that an EDL-based field effect transistor (FET) using IL4TFSI as a gate dielectric material and SrTiO3 as a channel material displays a very sharp transfer curve with an enhanced carrier accumulation capability of ~64 MUF/cm2, as determined by Hall-effect measurements. PMID- 29019660 TI - Antitumor Activity of a Unique Polymer That Incorporates a Fluorescent Self Assembled Metallacycle. AB - Despite the well-known anticancer activity of mono- and multinuclear platinum complexes, studies of the antitumor performances of platinum-based supramolecular coordination complexes are rare. Herein, we report on the synthesis of a four armed amphiphilic copolymer, Pt-PAZMB-b-POEGMA, containing a metallacycle M, in which the tetraphenylethene derivative acts as an aggregation-induced emissive fluorescent probe for live cell imaging and the 3,6-bis[trans Pt(PEt3)2]phenanthrene (PhenPt) is an anticancer drug. This copolymer was further self-assembled into nanoparticles of different sizes and vesicles depending upon the experimental conditions. The impacts of the morphology and size of the assemblies on their endocytic pathways, uptake rates, internalization amounts, and cytotoxicities were investigated. The self-assemblies were further employed to encapsulate doxorubicin (DOX) to achieve a synergistic anticancer effect. Controlled drug release was also realized via amphiphilicity changes and was driven by a glutathione-induced cascade elimination reaction. The DOX-loaded nanoparticles of around 50 nm in size exhibited an excellent antitumor performance as well as a low systemic toxicity, due to an enhanced permeability and retention effect. PMID- 29019663 TI - Tracking the Transformation of Nanoparticulate and Ionic Silver at Environmentally Relevant Concentration Levels by Hollow Fiber Flow Field-Flow Fractionation Coupled to ICPMS. AB - It is a great challenge to monitor the physical and chemical transformation of nanoparticles at environmentally relevant concentration levels, mainly because the commonly used techniques like dynamic light scattering and transmission electron microscopy are unable to characterize and quantify trace level nanoparticles in complex matrices. Herein, we demonstrate the on-line coupled system of hollow fiber flow field-flow fractionation (HF5), minicolumn concentration, and inductively coupled plasma mass spectrometry (ICPMS) detection as an efficient approach to study the aggregation and chemical transformation of silver nanoparticles (AgNPs) and ionic Ag species in the aqueous environment at ng/mL levels. Taking advantage of the in-line dialysis of HF5, the selective capture of Ag(I) species by the resin in minicolumn, and the high selectivity and sensitivity of ICPMS detection, we recorded the aggregation of 10 ng/mL AgNPs in complex matrices (e.g., NOM, Na+/Ca2+), revealing an interesting tiny AgNPs formation process of photoreduction of trace level Ag(I) that is different from larger AgNPs generated at high concentration of Ag(I) by accurate characterization and respectively identifying and quantifying new thiol-complexed Ag(I) and residual Ag(I) in the intertransformation of Ag(I) and AgNPs in domestic wastewater by simultaneously detecting the S and Ag signals via ICPMS. PMID- 29019664 TI - Solution-Like Behavior of Photoswitchable Spiropyrans Embedded in Metal-Organic Frameworks. AB - 1,3,3-Trimethylindolino-6'-nitrobenzopyrylospiran (SP-1) as an example of a photoswitchable spiropyran was loaded into the pores of different prototypical metal-organic frameworks, namely MOF-5, MIL-68(In), and MIL-68(Ga), by a vapor phase process. The successful incorporation in the pores of the MOF was proven by X-ray powder diffraction, and the amount of the embedded photoswitchable guest was determined by X-ray photoelectron spectroscopy and elemental analysis. In contrast to the sterically hindered crystalline state, SP-1 embedded in solid MOF hosts shows photoswitching under irradiation with UV light from the spiropyran to its merocyanine form with a nearly complete photoisomerization. Switching can be reversed by heat treatment. These switching properties were confirmed by means of UV/vis and IR spectroscopy. Remarkably, the embedded guest molecules show photoswitching and absorption properties similar to those in the dissolved state, so that MOFs might be considered as "solid solvents" for photoswitchable spiropyrans. In contrast to that, embedment of SP-1 in the smaller pores of MIL 53(Al) was not successful. SP-1 is mainly adsorbed on the surfaces of the MIL 53(Al) particles, which also leads to photoswitching properties. PMID- 29019665 TI - Effect of Donor Groups on the Performance of Cyclometalated Ruthenium Sensitizers in Dye-Sensitized Solar Cells. AB - Three new tris-heteroleptic complexes of ruthenium(II) were designed by coordinating the metal center with cyclometalating, anchoring, and auxiliary ligands with different donor substituents. N-Hexylcarbazole, N hexylphenothiazine, and N-hexyldiphenylamine donor moieties were used as substituents on the auxiliary ligands for SA633, SA634, and SA635, respectively. Complexes were characterized by 1H and 13C 2D-COSY NMR techniques. These complexes provide power conversion efficiencies in the range of 7.6-8.2% when they are employed in state of the art dye-sensitized solar cells (DSCs) with cobalt electrolyte. Various electrochemical and transient techniques were used to unveil the unexpected differences in the performance of these very similar sensitizers. PMID- 29019666 TI - Airborne Methane Emission Measurements for Selected Oil and Gas Facilities Across California. AB - We report 65 individual measurements of methane emissions from 24 oil and gas facilities across California. Methane emission rates were estimated using in situ methane and wind velocity measurements from a small aircraft by a novel Gauss' Theorem flux integral approach. The estimates are compared with annual mean emissions reported to the U.S. Environmental Protection Agency (USEPA) and the California Air Resources Board (CARB) through their respective greenhouse gas reporting programs. The average emissions from 36 measurements of 10 gas storage facilities were within a factor of 2 of emissions reported to USEPA or CARB, though large variance was observed and the reporting database did not contain all of the facilities. In contrast, average emissions from 15 measurements of the three refineries were roughly an order of magnitude more than reported to the USEPA or CARB. The remaining measurements suggest compressor emissions are variable and perhaps slightly larger than reported, and emissions from one oil production facility were roughly concordant with a separate (not GHG reporting) bottom-up estimate from other work. Together, these results provide an initial facility-specific survey of methane emissions from California oil and natural gas infrastructure with observed variability suggesting the need for expanded measurements in the future. PMID- 29019667 TI - Mixture Toxicity of Nickel and Microplastics with Different Functional Groups on Daphnia magna. AB - In recent years, discarded plastic has become an increasingly prevalent pollutant in aquatic ecosystems. These plastic wastes decompose into microplastics, which pose not only a direct threat to aquatic organisms but also an indirect threat via adsorption of other aquatic pollutants. In this study, we investigated the toxicities of variable and fixed combinations of two types of microplastics [one coated with a carboxyl group (PS-COOH) and the other lacking this functional group (PS)] with the heavy metal nickel (Ni) on Daphnia magna and calculated mixture toxicity using a toxic unit model. We found that toxicity of Ni in combination with either of the two microplastics differed from that of Ni alone. Furthermore, in general, we observed that immobilization of D. magna exposed to Ni combined with PS-COOH was higher than that of D. magna exposed to Ni combined with PS. Collectively, the results of our study indicate that the toxic effects of microplastics and pollutants may vary depending on the specific properties of the pollutant and microplastic functional groups, and further research on the mixture toxicity of various combinations of microplastics and pollutants is warranted. PMID- 29019668 TI - Application of Targeted Metabolomics to Investigate Optimum Growing Conditions to Enhance Bioactive Content of Strawberry. AB - A simple, sensitive, and rapid assay based on liquid chromatography coupled to tandem mass spectrometry was designed for simultaneous quantitation of secondary metabolites in order to investigate the influence of variety and agronomic conditions on the biosynthesis of bioactive compounds in strawberry. For this purpose, strawberries belonging to three varieties with different sensitivity to environmental conditions ('Camarosa', 'Festival', 'Palomar') were grown in a soilless system under multiple agronomic conditions (electrical conductivity, substrate type, and coverage). Targeted metabolomic analysis of polyphenolic compounds, combined with advanced chemometric methods based on learning machines, revealed significant differences in multiple bioactives, such as chlorogenic acid, ellagic acid rhamnoside, sanguiin H10, quercetin 3-O-glucuronide, catechin, procyanidin B2, pelargonidin 3-O-glucoside, cyanidin 3-O-glucoside, and pelargonidin 3-O-rutinoside, which play a pivotal role in organoleptic properties and beneficial healthy effects of these polyphenol-rich foods. PMID- 29019669 TI - Synthesis of 2,2-Difluorinated 4-Isoflavanols/4-Thioisoflavanols via a Base Catalyzed [4 + 2] Annulation Reaction of gem-Difluoroolefins. AB - DBU-catalyzed sequential intermolecular and intramolecular nucleophilic addition reactions between gem-difluoroolefins and o-hydroxy/mercapto benzaldehydes have been developed to provide a [4 + 2] annulation strategy for facile synthesis of gem-difluorinated isoflavanol derivatives. The competitive addition-elimination reaction of gem-difluoroolefins with nucleophiles was avoided under mild conditions, affording 2,2-difluorinated 4-isoflavanols or 2,2-difluoriated 4 thioisoflavanols in good to excellent yields. PMID- 29019671 TI - Deep Learning Based Regression and Multiclass Models for Acute Oral Toxicity Prediction with Automatic Chemical Feature Extraction. AB - Median lethal death, LD50, is a general indicator of compound acute oral toxicity (AOT). Various in silico methods were developed for AOT prediction to reduce costs and time. In this study, we developed an improved molecular graph encoding convolutional neural networks (MGE-CNN) architecture to construct three types of high-quality AOT models: regression model (deepAOT-R), multiclassification model (deepAOT-C), and multitask model (deepAOT-CR). These predictive models highly outperformed previously reported models. For the two external data sets containing 1673 (test set I) and 375 (test set II) compounds, the R2 and mean absolute errors (MAEs) of deepAOT-R on the test set I were 0.864 and 0.195, and the prediction accuracies of deepAOT-C were 95.5% and 96.3% on test sets I and II, respectively. The two external prediction accuracies of deepAOT-CR are 95.0% and 94.1%, while the R2 and MAE are 0.861 and 0.204 for test set I, respectively. We then performed forward and backward exploration of deepAOT models for deep fingerprints, which could support shallow machine learning methods more efficiently than traditional fingerprints or descriptors. We further performed automatic feature learning, a key essence of deep learning, to map the corresponding activation values into fragment space and derive AOT-related chemical substructures by reverse mining of the features. Our deep learning architecture for AOT is generally applicable in predicting and exploring other toxicity or property end points of chemical compounds. The two deepAOT models are freely available at http://repharma.pku.edu.cn/DLAOT/DLAOThome.php or http://www.pkumdl.cn/DLAOT/DLAOThome.php . PMID- 29019670 TI - Design, Synthesis, and Biological Activities of Vibsanin B Derivatives: A New Class of HSP90 C-Terminal Inhibitors. AB - Previously, vibsanin B (ViB) was found to preferentially target HSP90beta compared to HSP90alpha. In this study, multiple experiments, including pull-down assays of biotin-ViB with recombinant HSP90beta-NTD, MD, CTD, and full-length HSP90beta, molecular docking of ViB and its derivatives to the HSP90 CTD, and a inhibition assay of interaction of the HSP90beta CTD with GST-tagged cyclophilin 40 (Cyp40) by ViB derivatives, suggest that ViB can directly bind to the HSP90 C terminus. On the basis of the docking predictions and primary structure-activity relationships (SARs), a series of ViB analogues devised with focus on the C18 position, along with compounds derivatized at the C4, C7, and C8 positions, were designed and chemically synthesized. Compound 12f (IC50 = 1.12 MUM against SK-BR 3) exhibits great potency with drug-like properties. Overall, our findings demonstrate that compounds with the vibsanin B scaffold are a new class of HSP90 C-terminal inhibitors with considerable potential as anticancer agents. PMID- 29019672 TI - Synthesis of Furo[2,3-c]pyridazines via Tandem Transition-Metal Catalysis. AB - A general and efficient catalytic approach to synthesis of the furo[2,3 c]pyridazine ring system is reported. Building on the easily accessible 2-bromo-3 aminopyridizinone skeleton, a tandem Sonogashira coupling-cycloisomerization provides ready access to functionalized furopyridazines. A wide functional group tolerance was observed in the tandem reaction, which proceeds in high yield in 1 3 h. The structure of the heterocyclic ring system was confirmed through single crystal X-ray crystallography. PMID- 29019673 TI - Molecular Mechanism of Self-Assembly of Aromatic Oligoamides into Interlocked Double-Helix Foldamers. AB - Foldamer, inspired by the structures and functions of biopolymers, is defined as an artificial molecular architecture that can fold into a three-dimensional structure in solution and has been a growing and active field in supramolecular chemistry. The central issue in foldamer science is to understand how the primary sequence of oligomer folds into conformationally ordered structures as well as how individual subunits self-associate into assembly. For duplex structures, these two issues are always interrelated and inseparable with each other. Although the emergence of new foldamer keeps growing, the detailed mechanism remains elusive. On the basis of an artificially synthesized arylamide oligoamide foldamer with its crystal structure available, we constructed a set of four foldamers with a similar backbone but different substituents and aimed at dissecting the folding and self-association mechanisms of a double-helical foldamer with computations. Using molecular simulations at a microsecond time scale, we observed very consistent processes of the spontaneous self-assembly of two single-helical motifs into an entwined complex. Our results reveal that aggregation of two single-helical motifs driven by extensive pi-pi interactions is energetically favorable and that this spontaneous self-assembly proceeds through an "unwinding-threading-rewinding" mechanism. The detailed mechanisms about the folding and self-assembly in an aromatic oligoamide foldamer we present here disclose how the sequence is associated with a well-ordered three dimensional structure at atomic level and therefore may have implications for designing new foldamers with versatile functions. PMID- 29019674 TI - Zn(OTf)2-Catalyzed Phosphinylation of Propargylic Alcohols: Access to gamma Ketophosphine Oxides. AB - The first facile and efficient Zn(OTf)2-catalyzed direct coupling of unprotected propargylic alcohols with arylphosphine oxides has been developed, affording a general, one-step approach to access structurally diverse gamma-ketophosphine oxides via sequential Meyer-Schuster rearrangement/phospha-Michael reaction along with new C(sp3)-P and C?O bond formations, operational simplicity, and complete atom economy under ligand-free and base-free conditions. PMID- 29019676 TI - Small Molecule Antagonists of the Interaction between the Histone Deacetylase 6 Zinc-Finger Domain and Ubiquitin. AB - Inhibitors of HDAC6 have attractive potential in numerous cancers. HDAC6 inhibitors to date target the catalytic domains, but targeting the unique zinc finger ubiquitin-binding domain (Zf-UBD) of HDAC6 may be an attractive alternative strategy. We developed X-ray crystallography and biophysical assays to identify and characterize small molecules capable of binding to the Zf-UBD and competing with ubiquitin binding. Our results revealed two adjacent ligand-able pockets of HDAC6 Zf-UBD and the first functional ligands for this domain. PMID- 29019678 TI - Total Synthesis and Biological Mode of Action of WAP-8294A2: A Menaquinone Targeting Antibiotic. AB - WAP-8294A2 (lotilibcin, 1) is a potent antibiotic with superior in vivo efficacy to vancomycin against methicillin-resistant Staphylococcus aureus (MRSA). Despite the great medical importance, its molecular mode of action remains unknown. Here we report the total synthesis of complex macrocyclic peptide 1 comprised of 12 amino acids with a beta-hydroxy fatty-acid chain, and its deoxy analogue 2. A full solid-phase synthesis of 1 and 2 enabled their rapid assembly and the first detailed investigation of their functions. Compounds 1 and 2 were equipotent against various strains of Gram-positive bacteria including MRSA. We present evidence that the antimicrobial activities of 1 and 2 are due to lysis of the bacterial membrane, and their membrane-disrupting effects depend on the presence of menaquinone, an essential factor for the bacterial respiratory chain. The established synthetic routes and the menaquinone-targeting mechanisms provide valuable information for designing and developing new antibiotics based on their structures. PMID- 29019677 TI - Scalaradial Is a Potent Inhibitor of Transient Receptor Potential Melastatin 2 (TRPM2) Ion Channels. AB - TRPM2 is a Ca2+-permeable, nonselective cation channel that plays a role in oxidant-induced cell death, insulin secretion, and cytokine release. Few TRPM2 inhibitors have been reported, which hampers the validation of TRPM2 as a drug target. While screening our in-house marine-derived chemical library, we identified scalaradial and 12-deacetylscalaradial as the active components within an extract of an undescribed species of Cacospongia (class Demospongiae, family Thorectidae) that strongly inhibited TRPM2-mediated Ca2+ influx in TRPM2 overexpressing HEK293 cells. In whole-cell patch-clamp experiments, scalaradial (and similarly 12-deacetylscalaradial) inhibited TRPM2-mediated currents in a concentration- and time-dependent manner (~20 min to full onset; IC50 210 nM). Scalaradial inhibited TRPM7 with less potency (IC50 760 nM) but failed to inhibit CRAC, TRPM4, and TRPV1 currents in whole-cell patch clamp experiments. Scalaradial's effect on TRPM2 channels was shown to be independent of its well known ability to inhibit secreted phospholipase A2 (sPLA2) and its reported effects on extracellular signal-regulated kinases (ERK) and Akt pathways. In addition, scalaradial was shown to inhibit endogenous TRPM2 currents in a rat insulinoma cell line (IC50 330 nM). Based on its potency and emerging specificity profile, scalaradial is an important addition to the small number of known TRPM2 inhibitors. PMID- 29019679 TI - Quantum Chemistry in Dataflow: Density-Fitting MP2. AB - We demonstrate the use of dataflow technology in the computation of the correlation energy in molecules at the Moller-Plesset perturbation theory (MP2) level. Specifically, we benchmark density fitting (DF)-MP2 for as many as 168 atoms (in valinomycin) and show that speed-ups between 3 and 3.8 times can be achieved when compared to the MOLPRO package run on a single CPU. Acceleration is achieved by offloading the matrix multiplications steps in DF-MP2 to Dataflow Engines (DFEs). We project that the acceleration factor could be as much as 24 with the next generation of DFEs. PMID- 29019680 TI - Elucidating the Limiting Steps in Sulfuric Acid-Base New Particle Formation. AB - The molecular interactions between sulfuric acid (sa) and methylamine (ma) are investigated using computational methods. The molecular structures and vibrational frequencies of (sa)a(ma)b clusters, with a, b <= 4, were obtained with the omegaB97X-D functional using a 6-31++G(d,p) basis set. The single-point energies were corrected using the domain-based local pair natural orbital coupled cluster method-DLPNO-CCSD(T)-with an aug-cc-pVTZ basis set. The calculated Gibbs free energies (DeltaG) of the clusters are used to calculate the evaporation rates of the (sa)a(ma)b cluster system and compare them to the corresponding ammonia clusters. With the atmospheric cluster dynamics code (ACDC), the new particle formation rates of the (sa)a(ma)b clusters were simulated and compared to the (sa)a(dma)b cluster system. It is found that methylamine is not capable of explaining observed new particle formation event in the ambient atmosphere. Looking into the calculated Gibbs free energy profiles it is found that the limiting steps in forming stable (sa)3-4(base)3-4 clusters depend strongly on the formation of the (sa)1(base)1 and (sa)2(base)2 clusters. These findings further support that compounds with high basicity are required to form the very initial cluster nucleus, which serves as the basis for forming new particles in the atmosphere. PMID- 29019681 TI - Cyclobutyl-Containing Rigid Analogues of Threonine: Synthesis and Physical Chemical Properties. AB - Hitherto unknown cis- and trans-1-amino-3-hydroxy-3-methylcyclobutanecarboxylic acids were synthesized in multigram scale. The obtained compounds can be considered as achiral conformationally restricted analogues of threonine with fixed spatial orientation of functional groups. pKa values are noticeably different for both amino acids. According to the X-ray data the cyclobutane rings in both compounds are almost planar (the corresponding torsion angles are below 7 degrees ). PMID- 29019682 TI - Synthesis of beta-Ketosulfonamides Derived from Amino Acids and Their Conversion to beta-Keto-alpha,alpha-difluorosulfonamides via Electrophilic Fluorination. AB - beta-Ketosulfonamides derived from Boc or Cbz-protected amino acids bearing hydrophobic side chains were prepared in good to excellent yield by treating N allyl, N-alkyl methanesulfonamides with n-BuLi, followed by reaction of the resulting carbanion with methyl esters of N-protected l-amino acids. The analogous reaction using the dianion derived from an N-alkyl methanesulfonamide proceeded in much lower yield. Electrophilic fluorination of the beta ketosulfonamides using Selectfluor in the presence of CsF in DMF at room temperature for 15-60 min provided beta-keto-alpha,alpha-difluorosulfonamides in good to excellent yields. The allyl protecting group could be removed in good yield using cat. Pd(PPh)3)4 and dimethyl barbituric acid. When the fluorination reaction was performed with Cs2CO3 as base, beta-ketosulfonamides derived from Val, Leu or Ile gave the expected beta-keto-alpha,alpha-difluorosulfonamides, while beta-ketosulfonamides derived from Ala, Phe, or hPhe gave the hydrates of the imino beta-keto-alpha,alpha-difluorosulfonamides. PMID- 29019683 TI - Self-Assembly Pathways of beta-Sheet-Rich Amyloid-beta(1-40) Dimers: Markov State Model Analysis on Millisecond Hybrid-Resolution Simulations. AB - Early oligomerization during amyloid-beta (Abeta) aggregation is essential for Abeta neurotoxicity. Understanding how unstructured Abetas assemble into oligomers, especially those rich in beta-sheets, is essential but remains challenging as the assembly process is too transient for experimental characterization and too slow for molecular dynamics simulations. So far, atomic simulations are limited only to studies of either oligomer structures or assembly pathways for short Abeta segments. To overcome the computational challenge, we combine in this study a hybrid-resolution model and adaptive sampling techniques to perform over 2.7 ms of simulations of formation of full-length Abeta40 dimers that are the earliest toxic oligomeric species. The Markov state model is further employed to characterize the transition pathways and associated kinetics. Our results show that for two major forms of beta-sheet-rich structures reported experimentally, the corresponding assembly mechanisms are markedly different. Hairpin-containing structures are formed by direct binding of soluble Abeta in beta-hairpin-like conformations. Formation of parallel, in-register structures resembling fibrils occurs ~100-fold more slowly and involves a rapid encounter of Abeta in arbitrary conformations followed by a slow structural conversion. The structural conversion proceeds via diverse pathways but always requires transient unfolding of encounter complexes. We find that the transition kinetics could be affected differently by intra-/intermolecular interactions involving individual residues in a conformation-dependent manner. In particular, the interactions involving Abeta's N-terminal part promote the assembly into hairpin-containing structures but delay the formation of fibril-like structures, thus explaining puzzling observations reported previously regarding the roles of this region in the early assembly process. PMID- 29019684 TI - Serinolamides and Lyngbyabellins from an Okeania sp. Cyanobacterium Collected from the Red Sea. AB - NMR- and MS-guided fractionation of an extract of an Okeania sp. marine cyanobacterium, collected from the Red Sea, led to the isolation of four new metabolites, including serinolamides C (1) and D (2) and lyngbyabellins O (3) and P (4), together with the three known substances lyngbyabellins F (5) and G (6) and dolastatin 16 (7). The planar structures of the new compounds were determined using NMR and MS analyses. The absolute configurations of 1 and 2 were determined by Marfey's analysis of their hydrolysates. The absolute configuration of 3 was ascertained by chiral-phase chromatography of degradation products, while that of 4 was determined by comparison to 3 and 5. The cytotoxic and antifouling activities of these compounds were evaluated using MCF7 breast cancer cells and Amphibalanus amphitrite larvae, respectively. Compounds 3, 4, and 7 exhibited strong antifouling activity, and 3 and 7 were not cytotoxic. A structure-activity relationship was observed for the cytotoxicity of the lyngbyabellins with the presence of a side chain (4 is more active than 3) leading to greater activity. For the antifouling activity, the acyclic form without a side chain (3) was the most active. PMID- 29019685 TI - Structures and Antibacterial Properties of Isorugosins H-J, Oligomeric Ellagitannins from Liquidambar formosana with Characteristic Bridging Groups between Sugar Moieties. AB - Three new ellagitannin oligomers, isorugosins H (1), I (2), and J (3), together with 11 known hydrolyzable tannins were isolated from an aqueous acetone extract of the fresh leaves of Liquidambar formosana. Their chemical structures were elucidated based on spectroscopic data and chemical conversion into known hydrolyzable tannins. The bridging mode of the valoneoyl groups between their sugar moieties has been identified only in this plant species. Additionally, the effects of the isorugosins isolated from this species on drug-resistant bacteria were evaluated and showed that isorugosin A (4) exhibited the most potent antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA). The isorugosins also had a suppressing effect on pigment formation in Pseudomonas aeruginosa. The isorugosin-protein complexes were analyzed using size exclusion chromatography and polyacrylamide gel electrophoresis to clarify the relationship of their antibacterial properties with their protein interaction potency as hydrolyzable tannins. The results suggested that the antibacterial properties of hydrolyzable tannins are not simply a result of their binding activity to proteins, but are due to other factors such as the accessibility of polyphenolic acyl groups to bacterial membranes. PMID- 29019686 TI - Virtual Exploration of the Ring Systems Chemical Universe. AB - Here, we explore the chemical space of all virtually possible organic molecules focusing on ring systems, which represent the cyclic cores of organic molecules obtained by removing all acyclic bonds and converting all remaining atoms to carbon. This approach circumvents the combinatorial explosion encountered when enumerating the molecules themselves. We report the chemical universe database GDB4c containing 916 130 ring systems up to four saturated or aromatic rings and maximum ring size of 14 atoms and GDB4c3D containing the corresponding 6 555 929 stereoisomers. Almost all (98.6%) of these ring systems are unknown and represent chiral 3D-shaped macrocycles containing small rings and quaternary centers reminiscent of polycyclic natural products. We envision that GDB4c can serve to select new ring systems from which to design analogs of such natural products. The database is available for download at www.gdb.unibe.ch together with interactive visualization and search tools as a resource for molecular design. PMID- 29019687 TI - Simulated Dynamics of Glycans on Ligand-Binding Domain of NMDA Receptors Reveals Strong Dynamic Coupling between Glycans and Protein Core. AB - N-Methyl-d-aspartate (NMDA) receptors, key neuronal receptors playing the central role in learning and memory, are heavily glycosylated in vivo. Astonishingly little is known about the structure, dynamics, and physiological relevance of glycans attached to them. We recently demonstrated that certain glycans on the ligand binding domain (LBD) of NMDA receptors (NMDARs) can serve as intramolecular potentiators, changing EC50 of NMDAR coagonists. In this work, we use molecular dynamics trajectories, in aggregate 86.5 MUs long, of the glycosylated LBD of the GluN1 subunit of the NMDAR to investigate the behavior of glycans on NMDARs. Though all glycans in our simulations were structurally the same (Man5), the dynamics of glycans at different locations on NMDARs was surprisingly different. The slowest-time scale motions that we detected in various glycans in some cases corresponded to a flipping of parts of glycans relative to each other, while in other cases they reduced to a head-to-tail bending of a glycan. We predict that time scales of conformational changes in glycans on the GluN1 LBD of NMDARs range from nanoseconds to at least hundreds of microseconds. Some of the conformational changes in the glycans correlate with the physiologically important clamshell-like opening and closing of the GluN1 LBD domain. Thus, glycans are an integral part of NMDARs, and computational models of NMDARs should include glycans to faithfully represent the structure and the dynamics of these receptors. PMID- 29019688 TI - Yb(OTf)3-Catalyzed Desymmetrization of myo-Inositol 1,3,5-Orthoformate and Its Application in the Synthesis of Chiral Inositol Phosphates. AB - A variety of inositol phosphates including myo-inositol 1,4,5-trisphosphate, which is a secondary messenger in transmembrane signaling, were selectively synthesized via Yb(OTf)3-catalyzed desymmetrization of myo-inositol 1,3,5 orthoformate using a proline-based chiral anhydride as an acylation precursor. The investigated catalytic system could regioselectively differentiate the enantiotopic hydroxy groups of myo-inositol 1,3,5-orthoformate in the presence of a chiral auxiliary. This key step to generate a suitably protected chiral myo inositol derivatives is described here as a unified approach to access inositol phosphates. PMID- 29019689 TI - Improving the Efficiency of Beyond-RPA Methods within the Dielectric Matrix Formulation: Algorithms and Applications to the A24 and S22 Test Sets. AB - Within a formalism based on dielectric matrices, the electron-hole time-dependent Hartree-Fock (eh-TDHF) and the adiabatic connection second-order screened exchange (AC-SOSEX) are promising approximations to improve ground-state correlation energies by including exchange effects beyond the random phase approximation (RPA). We introduce here an algorithm based on a Gram-Schmidt orthogonalization (GSO) procedure that significantly reduce the number of matrix elements to be computed to evaluate the response functions that enter in the formulation of these two methods. By considering the A24 test set, we show that this approach does not lead to a significant loss of accuracy and can be effectively applied to compute the small interaction energies involved in weakly bound dimers. Importantly, the GSO method significantly extends the applicability of the eh-TDHF and AC-SOSEX to large systems. This is shown by considering the S22 test set, which includes dimers with up to one hundred valence electrons requiring hundreds of thousands of plane-waves in the basis set. By comparing our results to coupled-cluster benchmark values, we show that the inclusion of exchange effects beyond the RPA significantly improves the accuracy, with mean absolute errors that decrease by almost 40% for the A24 test set and by almost 50% for the S22 test set. This approach based on dielectric matrices is particularly suited for plane-wave implementations and might be used in the future to improve the description of the correlation energy in solid state applications. PMID- 29019691 TI - pH-Induced Changes in the Surface Viscosity of Unsaturated Phospholipids Monitored Using Active Interfacial Microrheology. AB - Lipid membranes, a major component of cells, are subjected to significant changes in pH depending on their location in the cell: the outer leaflet of the cell membrane is exposed to a pH of 7.4 whereas lipid membranes that make up late endosomes and lysosomes are exposed to a pH of as low as 4.4. The purpose of this study is to evaluate how changes in the environmental pH within cells alter the fluidity of phospholipid membranes. Specifically, we studied pH-induced alterations in the surface arrangement of monounsaturated lipids with zwitterionic headgroups (phosphoethanolamine (PE) and phosphocholine (PC)) that are abundant in plasma membranes as well as anionic lipids (phosphatidylserine (PS) and phosphatidylglycerol (PG)) that are abundant in inner membranes using a combination of techniques including surface tension vs area measurements, interfacial microrheology, and fluorescence/atomic force microscopy. Using an active interfacial microrheology technique, we find that phospholipids with zwitterionic headgroups show a significant increase in their surface viscosity at acidic pH. This increase in surface viscosity is also found to depend on the size of the lipid headgroup, with a smaller headgroup showing a greater increase in viscosity. The observed pH-induced increase in viscosity is also accompanied by an increase in the cohesion pressure between zwitterionic molecules at acidic pH and a decrease in the average molecular area of the lipids, as measured by fitting the surface pressure isotherms to well-established equations of state. Because fluorescent images show no change in the phase of the lipids, we attribute this change in surface viscosity to the pH-induced reorientation of the P--N+ dipoles that form part of the polar lipid headgroup, resulting in increased lipid-lipid interactions. Anionic PG headgroups do not demonstrate this pH induced change in viscosity, suggesting that the presence of a net negative charge on the headgroup causes electrostatic repulsion between the headgroups. Our results also show that active interfacial microrheology is a sensitive technique for detecting minute changes in the lipid headgroup orientation induced by changes in the local membrane environment, even in unsaturated phospholipids where the surface viscosity is close to the experimental detection limit. PMID- 29019692 TI - Tuning the Electrocatalytic Oxygen Reduction Reaction Activity and Stability of Shape-Controlled Pt-Ni Nanoparticles by Thermal Annealing - Elucidating the Surface Atomic Structural and Compositional Changes. AB - Shape-controlled octahedral Pt-Ni alloy nanoparticles exhibit remarkably high activities for the electroreduction of molecular oxygen (oxygen reduction reaction, ORR), which makes them fuel-cell cathode catalysts with exceptional potential. To unfold their full and optimized catalytic activity and stability, however, the nano-octahedra require post-synthesis thermal treatments, which alter the surface atomic structure and composition of the crystal facets. Here, we address and strive to elucidate the underlying surface chemical processes using a combination of ex situ analytical techniques with in situ transmission electron microscopy (TEM), in situ X-ray diffraction (XRD), and in situ electrochemical Fourier transformed infrared (FTIR) experiments. We present a robust fundamental correlation between annealing temperature and catalytic activity, where a ~25 times higher ORR activity than for commercial Pt/C (2.7 A mgPt-1 at 0.9 VRHE) was reproducibly observed upon annealing at 300 degrees C. The electrochemical stability, however, peaked out at the most severe heat treatments at 500 degrees C. Aberration-corrected scanning transmission electron microscopy and energy-dispersive X-ray spectroscopy (EDX) in combination with in situ electrochemical CO stripping/FTIR data revealed subtle, but important, differences in the formation and chemical nature of Pt-rich and Ni-rich surface domains in the octahedral (111) facets. Estimating trends in surface chemisorption energies from in situ electrochemical CO/FTIR investigations suggested that balanced annealing generates an optimal degree of Pt surface enrichment, while the others exhibited mostly Ni-rich facets. The insights from our study are quite generally valid and aid in developing suitable post-synthesis thermal treatments for other alloy nanocatalysts as well. PMID- 29019693 TI - Dynamic Structuration of Physical Chitosan Hydrogels. AB - We studied the microstructure of physical chitosan hydrogels formed by the neutralization of chitosan aqueous solutions highlighting the structural gradients within thick gels (up to a thickness of 16 mm). We explored a high polymer concentrations range (Cp >= 1.0% w/w) with different molar masses of chitosan and different concentrations of the coagulation agent. The effect of these processing parameters on the morphology was evaluated mainly through small angle light scattering (SALS) measurements and confocal laser scanning microscopy (CLSM) observations. As a result, we reported that the microstructure is continuously evolving from the surface to the bulk, with mainly two structural transitions zones separating three types of hydrogels. The first zone (zone I) is located close to the surface of the hydrogel and constitutes a hard (entangled) layer formed under fast neutralization conditions. It is followed by a second zone (zone II) with a larger thickness (~3-4 mm), where in some cases large pores or capillaries (diameter ~10 MUm) oriented parallel to the direction of the gel front are present. Deeper in the hydrogel (zone III), a finer oriented microstructure, with characteristic sizes lower than 2-3 MUm, gradually replace the capillary morphology. However, this last bulk morphology cannot be regarded as structurally uniform because the size of small micrometer-range-oriented pores continuously increases as the distance to the surface of the hydrogel increases. These results could be rationalized through the effect of coagulation kinetics impacting the morphology obtained during neutralization. PMID- 29019695 TI - Total Synthesis of Biselide E, a Marine Polyketide. AB - The total synthesis of biselide E, a marine polyketide isolated from the Okinawan ascidian, has been accomplished. The highlight of this approach is the use of the beta-elimination reaction of the chloroacetoxy group for the construction of an unstable six-membered alpha,beta,gamma,delta-unsaturated lactone portion at the late stage of the total synthesis. PMID- 29019694 TI - Zwitterionic and Charged Lipids Form Remarkably Different Structures on Nanoscale Oil Droplets in Aqueous Solution. AB - The molecular structure of zwitterionic and charged monolayers on small oil droplets in aqueous solutions is determined using a combined second harmonic and sum frequency study. From the interfacial vibrational signature of the acyl chains and phosphate headgroups as well as the response of the hydrating water, we find that zwitterionic and charged lipids with identical acyl chains form remarkably different monolayers. Zwitterionic phospholipids form a closely packed monolayer with highly ordered acyl tails. In contrast, the charged phospholipids form a monolayer with a low number density and disordered acyl tails. The charged headgroups are oriented perpendicular to the monolayer rather than parallel, as is the case for zwitterionic lipids. These significant differences between the two types of phospholipids indicate important roles of phospholipid headgroups in the determination of properties of cellular membranes and lipid droplets. The observed behavior of charged phospholipids is different from expectations based on studies performed on extended planar interfaces, at which condensed monolayers are readily formed. The difference can be explained by nanoscale related changes in charge condensation behavior that has its origin in a different balance of interfacial intermolecular interactions. PMID- 29019696 TI - Metal Substitution in Keggin-Type Tridecameric Aluminum-Oxo-Hydroxy Clusters. AB - The species resulting from a typical preparation for metal-substituted hybrids of the Keggin tridecamer, Al13 or [AlO4Al12(OH)24(OH2)12]7+, were examined by performing 27Al NMR on the solutions during aging and by studying the precipitated sulfate salts via solid state 27Al NMR and powder X-ray diffraction (XRD). Aqueous mixtures (0.25 mol L-1) of AlCl3 and another metal ion (M), in a 12:1 mole ratio (Al:M), where M = Fe3+, Zn2+, Ga3+, In3+, Sn2+, La3+, and Bi3+, were subjected to forced hydrolysis by addition of NaOH (1.0 mol L-1) until OH/(Al + M) = 2.25, and the kinetics of Al13 formation and disappearance with aging at 80 degrees C was monitored by 27Al NMR spectroscopy. Al13 units polymerize on aging with an apparent rate constant (k) of 4.8(8) * 10-2 h-1 to form a species referred to as AlP2. Only the solutions containing Ga3+ and Sn2+ exhibited faster Al13 conversion rates. GaAl12 forms quickly at 80 degrees C (k = 0.54 h-1) and is more stable than AlP2. Sn2+ apparently promotes AlP2 formation (k = 0.38 h-1). XRD and solid state NMR reveal that only the Ga hybrid can be prepared by this method. No hybrid formation was evidenced using M = Mg2+, Fe3+, Co2+, Ni2+, Cu2+, Zn2+, In3+, La3+, or Ce3+ at 25 degrees C or M = Co2+ or La3+ under reflux conditions. Isostructural (cubic symmetry) single crystals were obtained for the sulfate salts of Al13 and GaAl12. Single-crystal XRD analysis of these two polyoxocations provides the first rigorous comparison between them and shows they have very similar structures. The main crystallographic data for Al13 and GaAl12 are as follows: Na[AlO4Al12(OH)24(H2O)12](SO4)4.10H2O, cubic, F43m, a = 17.856(2) A, Z = 4; Na[GaO4Al12(OH)24(H2O)12](SO4)4.10H2O, cubic, F43m, a = 17.869(3) A, Z = 4. Thus, the greater thermal stability of GaAl12 cannot be rationalized in terms of the overall geometric considerations, as suggested by others. Solid state NMR also shows the coordination symmetries of the outer 12 Al nuclei in both clusters to be similar. PMID- 29019698 TI - Palivizumab Prophylaxis and Recurrent Wheezing. PMID- 29019699 TI - Reply to Kovesi, to Chabra, and to Farber: "Palivizumab Prophylaxis and Recurrent Wheezing" and "Precise Gestational Age Definitions Needed for Palivizumab Prophylaxis in Preterm Infants" and "Imbalance in Level of Tobacco Smoke Exposure Between Groups Likely Explains the "Effect" of Palivizumab on Subsequent Wheezing". PMID- 29019697 TI - Development of Potent Type I Protein Arginine Methyltransferase (PRMT) Inhibitors of Leukemia Cell Proliferation. AB - Protein Arginine Methyltransferases (PRMTs) are crucial players in diverse biological processes, and dysregulation of PRMTs has been linked to various human diseases, especially cancer. Therefore, small molecules targeting PRMTs have profound impact for both academic functional studies and clinical disease treatment. Here, we report the discovery of N1-(2-((2-chlorophenyl)thio)benzyl) N1-methylethane-1,2-diamine (28d, DCPR049_12), a highly potent inhibitor of type I PRMTs that has good selectivity against a panel of other methyltransferases. Compound 28d effectively inhibits cell proliferation in several leukemia cell lines and reduces the cellular asymmetric arginine dimethylation levels. Serving as an effective inhibitor, 28d demonstrates the mechanism of cell killing in both cell cycle arrest and apoptotic effect as well as downregulation of the pivotal mixed lineage leukemia (MLL) fusion target genes such as HOXA9 and MEIS1, which reflects the critical roles of type I PRMTs in MLL leukemia. These studies present 28d as a valuable inhibitor to investigate the role of type I PRMTs in cancer and other diseases. PMID- 29019701 TI - Precise Gestational Age Definitions Needed for Palivizumab Prophylaxis in Preterm Infants. PMID- 29019700 TI - Taillessness in a Cloned Cow is Not Genetically Transmitted. AB - Somatic cell nuclear transfer (SCNT), commonly referred to as cloning, results in the generation of offspring that, except for mitochondrial DNA, are genetically identical to the nuclear donor. We previously used a genetically modified bovine cell line as the donor for SCNT and obtained a calf, named Daisy, that was born without a tail. To determine whether the missing tail was a result of the genetic modification, we performed recloning experiments by using either cells from a sacrificed pregnancy of a second clone (Daisy's "twin" clone) or cells from tailless Daisy as donors for SCNT. Cloned fetuses from aborted pregnancies and a cloned live calf that died shortly after birth were examined and confirmed to all possess tails. Hence, the observed phenotype of Daisy's lacking tail is not due to the introduced transgene or a mutation present in the cell that was used for her production. Rather, the missing tail has most likely arisen from an epigenetic reprogramming error during development. PMID- 29019703 TI - Imbalance in Level of Tobacco Smoke Exposure Between Groups Likely Explains the "Effect" of Palivizumab on Subsequent Wheezing. PMID- 29019702 TI - Inhibition of Phosphoglycerate Dehydrogenase Attenuates Bleomycin-induced Pulmonary Fibrosis. AB - Organ fibrosis, including idiopathic pulmonary fibrosis, is associated with significant morbidity and mortality. Because currently available therapies have limited effect, there is a need to better understand the mechanisms by which organ fibrosis occurs. We have recently reported that transforming growth factor (TGF)-beta, a key cytokine that promotes fibrogenesis, induces the expression of the enzymes of the de novo serine and glycine synthesis pathway in human lung fibroblasts, and that phosphoglycerate dehydrogenase (PHGDH; the first and rate limiting enzyme of the pathway) is required to promote collagen protein synthesis downstream of TGF-beta. In this study, we investigated whether inhibition of de novo serine and glycine synthesis attenuates lung fibrosis in vivo. We found that TGF-beta induces mRNA and protein expression of PHGDH in murine fibroblasts. Similarly, intratracheal administration of bleomycin resulted in increased expression of PHGDH in mouse lungs, localized to fibrotic regions. Using a newly developed small molecule inhibitor of PHGDH (NCT-503), we tested whether pharmacologic inhibition of PHGDH could inhibit fibrogenesis both in vitro and in vivo. Treatment of murine and human lung fibroblasts with NCT-503 decreased TGF beta-induced collagen protein synthesis. Mice treated with the PHGDH inhibitor beginning 7 days after intratracheal instillation of bleomycin had attenuation of lung fibrosis. These results indicate that the de novo serine and glycine synthesis pathway is necessary for TGF-beta-induced collagen synthesis and bleomycin-induced pulmonary fibrosis. PHGDH and other enzymes in the de novo serine and glycine synthesis pathway may be a therapeutic target for treatment of fibrotic diseases, including idiopathic pulmonary fibrosis. PMID- 29019704 TI - Fair Is Fair: Just Visiting Hours and Reducing Inequities. AB - Although family is an essential unit of every society, many intensive care units continue to impose limitations on families' access to their loved ones. Unlimited family presence is backed both by data and the guidelines of multiple professional societies. We propose that the obligation to protect the integrity and needs of our patients and families extends past our immediate relationship to them at the bedside, and is also a societal imperative. In a society rife with implicit bias, restrictions on family visitation risk selective enforcement of these rules, and further propagate social injustice. Restrictions on family presence, including rigid hours, reflect an arbitrary vision based on increasingly obsolete socioeconomic realities. The time is now to open our intensive care units both on behalf of our patients and families, and for the betterment of our society as a whole. PMID- 29019705 TI - Validation of a Difficulty Grading Score in Laparoscopic Splenectomy. AB - INTRODUCTION: Laparoscopic splenectomy (LS) is the gold standard for the treatment of many spleen-related disorders. However, in the presence of splenomegaly, the rate of conversion to open surgery can be as high as 33.9% and is associated with longer operative times and higher costs. In an attempt to improve risk stratification and patient selection for LS, a score that includes four preoperative parameters (age, gender, diagnosis, and spleen size) has been developed. The aim was the validation of a difficulty grading score, in predicting conversion and poorer outcomes. METHODS: Retrospective analysis of 153 consecutive patients subjected to LS from January 2006 through December 2016 was performed. Several parameters were reviewed and correlation with evaluated outcomes was analyzed. RESULTS: Conversion to open surgery occurred in 13 (8.50%) patients and was highly associated with serious intraoperative complications. Spearman correlation showed a significant association between the score and risk of conversion, operative time, and postoperative complications, but not with intraoperative bleeding. DISCUSSION: Patient and disease features, incorporated in a difficulty grading score, can reliably determine the difficulty of LS and predict risk of conversion, intraoperative, and postoperative complications. This simple and reproducible score improves risk stratification for LS and could be practical in daily clinical activities. PMID- 29019706 TI - Institutional Scientific Review of Cancer Clinical Research Protocols: A Unique Requirement That Affects Activation Timelines. AB - PURPOSE: The National Cancer Institute (NCI) requirement that clinical trials at NCI-designated cancer centers undergo institutional scientific review in addition to institutional review board evaluation is unique among medical specialties. We sought to evaluate the effect of this process on protocol activation timelines. METHODS: We analyzed oncology clinical trials that underwent full board review by the Harold C. Simmons Comprehensive Cancer Center Protocol Review and Monitoring Committee (PRMC) from January 1, 2009, through June 30, 2013. We analyzed associations between trial characteristics, PRMC decisions, protocol modifications, and process timelines using the chi2 test, Fisher's exact test, Wilcoxon rank sum test, Kruskal-Wallis test, and logistic regression. RESULTS: A total of 226 trials were analyzed. Of these, 77% were industry sponsored and 23% were investigator initiated. The median time from submission to PRMC approval was 55 days. The length of review was associated with trial phase, timing of approval, and number of committee changes/clarifications requested. The median process time was 35 days for those approved at first decision, 68 days for second decision, and 116 days for third decision ( P < .001). The median process time was 39 days if no changes/clarifications were requested, 64 days for one to three changes/clarifications, and 73 days for four or more changes/clarifications ( P < .001). Requested changes/clarifications had a greater effect on industry sponsored trials than on investigator-initiated trials. CONCLUSION: NCI-mandated institutional scientific review of oncology clinical trials contributes substantially to protocol activation timelines. Further evaluation of this process and the value added to research quality is warranted. PMID- 29019708 TI - Effects of long-term exercise and low-level inhibition of GABAergic synapses on motor control and the expression of BDNF in the motor related cortex. AB - Objectives Brain-derived neurotrophic factor (BDNF) plays important roles in neuroplasticity in the brain. The objective of this study was to examine the effects of long-term exercise combined with low-level inhibition of GABAergic synapses on motor control and the expression of BDNF in the motor-related cortex. Methods ICR mice were divided into four groups based on the factors exercise and GABAA receptor inhibition. We administered the GABAA receptor antagonist bicuculline intraperitoneally (0.25 mg/kg). Mice exercised on a treadmill 5 days/week for 4 weeks. Following behavioral tests, BDNF expression in the motor cortex and cerebellar cortex was assayed using RT-PCR and ELISA. Results Exercise increased BDNF protein in the motor cortex and improved motor coordination in the rotarod test either in the presence or absence of bicuculline. BDNF mRNA expression in the motor cortex and muscle coordination in the wire hang test decreased after administration of bicuculline, whereas bicuculline administration increased mRNA and protein expression of BDNF in the cerebellum. Discussion The present study revealed that long-term exercise increased BDNF expression in the motor cortex and facilitated a transfer of motor learning from aerobic exercise to postural coordination. Thus, aerobic exercise is meaningful for conditioning motor learning to rehabilitate patients with central nervous system (CNS) disorders. However, long-term inhibition of GABAA receptors decreased the expression of cortical BDNF mRNA and decreased muscle coordination, despite the increase of BDNF in the cerebellum, suggesting that we have to consider the term of the inhibition of the GABAergic receptor for future clinical application to CNS patients. PMID- 29019709 TI - Laparoscopic Varicocelectomy Using Polymeric Ligating Clips and Its Effect on Semen Parameters in Pediatric Population with Symptomatic Varicocele: A 5-Year Single Surgeon Experience. AB - BACKGROUND: The aim of this study was to evaluate demographic and clinical characteristics of the children undergoing laparoscopic varicocelectomy by using polymeric ligating clips and to evaluate postoperative outcomes and analyze semen according to the grade of varicocele after surgery. PATIENTS AND METHODS: The case records of 120 pediatric patients who underwent laparoscopic varicocelectomy were retrospectively reviewed. The following parameters were examined: age, grade of varicocele, lateralization, diameter of spermatic veins, indications for surgery, duration and outcomes of surgery, complications, and recurrence rate. For patients older than 16 years of age, semen analyses were obtained before and after the surgery and were compared according to the clinical grade of varicocele. RESULTS: The median age of the patients was 15 years. Of the total number of patients, left-sided varicocele was found in 119 patients and bilateral varicocele was found in 1 patient. Of the 120 varicoceles, 8 (6.7%) were grade I, 58 (48.3%) were grade II, and 54 (45%) were grade III. There were no major intraoperative complications. Hydrocele was found in 2 (1.6%) patients. There were no cases of recurrence recorded. Sperm concentration (P < .01), morphology (P < .01), and motility (P < .01; P = .02) improved 6 months after surgery in patients with varicocele grades of I and II, respectively. In grade III varicocele, only sperm concentration (P < .01) and morphology (P = .03) improved whereas motility (P = .150) did not change significantly. CONCLUSION: Laparoscopic varicocelectomy using polymeric ligating clips is a safe, feasible, and cost-effective technique, with a low rate of postoperative complications and recurrence and it significantly improves sperm parameters in adolescents. PMID- 29019710 TI - The View from Puerto Rico - Hurricane Maria and Its Aftermath. PMID- 29019707 TI - Glutaminolysis Promotes Collagen Translation and Stability via alpha Ketoglutarate-mediated mTOR Activation and Proline Hydroxylation. AB - Glutaminolysis is the metabolic process of glutamine, aberration of which has been implicated in several pathogeneses. Although we and others recently found a diversity of metabolic dysregulation in organ fibrosis, it is unknown if glutaminolysis regulates the profibrotic activities of myofibroblasts, the primary effector in this pathology. In this study, we found that lung myofibroblasts demonstrated significantly augmented glutaminolysis that was mediated by elevated glutaminase 1 (Gls1). Inhibition of glutaminolysis by specific Gls1 inhibitors CB-839 and BPTES as well as Gls1 siRNA blunted the expression of collagens but not that of fibronectin, elastin, or myofibroblastic marker smooth muscle actin-alpha. We found that glutaminolysis enhanced collagen translation and stability, which were mediated by glutaminolysis-dependent mTOR complex 1 activation and collagen proline hydroxylation, respectively. Furthermore, we found that the amount of the glutaminolytic end product alpha ketoglutarate (alpha-KG) was increased in myofibroblasts. Similar to glutaminolysis, alpha-KG activated mTOR complex 1 and promoted the expression of collagens but not of fibronectin, elastin, or smooth muscle actin-alpha. alpha-KG also remarkably inhibited collagen degradation in fibroblasts. Taken together, our studies identified a previously unrecognized mechanism by which a major metabolic program regulates the exuberant production of collagens in myofibroblasts and suggest that glutaminolysis is a novel therapeutic target for treating organ fibrosis, including idiopathic pulmonary fibrosis. PMID- 29019711 TI - Preparing for the Next Harvey, Irma, or Maria - Addressing Research Gaps. PMID- 29019712 TI - Creating Healthy Communities after Disasters. PMID- 29019714 TI - To the Editor. PMID- 29019713 TI - Modified Endoscopic Vacuum Therapy for Nonhealing Esophageal Anastomotic Leak: Technique Description and Review of Literature. AB - BACKGROUND: Endoscopic vacuum-assisted closure (EVAC) therapy is increasingly being used as a new promising method for repairing upper gastrointestinal defects of different etiologies with high success rates. EVAC therapy consists of placing a sponge either within the lumen or within an abscess cavity connected with a nasogastric (NG) tube to a negative pressure system, thus decreasing bacterial contamination and edema and promoting granulation tissue proliferation, thereby gradually decreasing the cavity size until complete closure. Herein, we describe a modified technique for EVAC therapy in which the NG tube is passed into the esophagus through an existing intrapleural drain tract using a rendezvous technique. The small residual fistula was amendable to fibrin glue embolization. This allows easier sponge placement and exchange compared to traditional EVAC technique, and allows oral intake during treatment. We also review the literature regarding other endoscopic treatment options for esophageal anastomotic leaks and perforations. METHODS: The PubMed database was searched using the terms "esophagus," "esophageal," "leak," "fistula," "endoluminal vacuum-assisted closure (VAC)," "endoscopic VAC," "stent," "sealant," "glue," and "over-the-scope clip (OTSC)." Reference lists of identified articles were searched for further articles, and the "similar articles" function was used on all included articles. RESULTS: Complete closure of the nonhealing fistula was achieved after 8 days of EVAC treatment and fibrin glue embolization. CONCLUSIONS: Modified EVAC technique as described is feasible and safe. To the best of our knowledge, this is the first description of this technique. The technique allows easier sponge placement and exchange compared to traditional EVAC technique, and allows oral intake during treatment. PMID- 29019715 TI - POSTOPERATIVE INSULIN REQUIREMENTS IN BARIATRIC SURGERY. AB - OBJECTIVE: Though insulin dose reduction months after surgery is a well-studied outcome, there are limited data on immediate postoperative changes. The goals of the present study were to ( 1) To determine peri-operative glycemic control in patients with type 2 diabetes mellitus (DM) on insulin who have undergone Roux-en Y gastric bypass (RYGB) and ( 2) to compare pre- and postoperative insulin regimens and dosages in these patients. METHODS: A retrospective chart review was conducted on patients with type 2 DM on insulin who underwent RYGB surgery. Blood glucose (BG) levels and insulin doses were compared prior to surgery, on the day of surgery (DOS), and postoperative days (POD) 1 and 2. Subgroup analysis was performed to see if insulin dose was related to glucose control. RESULTS: There were 114 subjects with a mean (SD) age of 52.8 +/- 9.8 years, body mass index (BMI) 46.2 +/- 8.0 kg/m2, glycated hemoglobin A1c (HbA1c) 8.3% (67 mmol/mol) +/- 1.7%, and 66% on insulin plus noninsulin medications and 34% on insulin only. Mean blood glucose (BG) significantly decreased from the DOS (185 +/- 43 mg/dL) through POD2 (160 +/- 36, P<.0001). The median daily insulin dose significantly decreased from before surgery on usual diet (75 units [36, 116 interquartile range (IQR)]) through POD2 (6 [2, 15 IQR]), P<.0001). The median insulin dose per body weight decreased significantly from before surgery on usual diet (0.58 units/kg [0.35, 0.84 IQR]) through POD2 (0.04 [0.02, 0.11 IQR]), P<.0001). The subgroup with relatively good control experienced a larger percentage reduction in insulin requirements versus subjects with poor control. CONCLUSION: An 87.5% reduction in total daily insulin dose was seen by POD2. This will assist in developing algorithms for insulin titration postbariatric surgery. ABBREVIATIONS: BG = blood glucose DM = diabetes mellitus DOS = day of surgery HbA1c = glycated hemoglobin IQR = interquartile range IV = intravenous NPH = neutral protamine Hagedorn POD = postoperative day RYGB = Roux-en-Y gastric bypass SSRI = sliding scale regular insulin. PMID- 29019716 TI - SUBCLINICAL IMPAIRMENT OF LEFT VENTRICULAR LONGITUDINAL FUNCTION IN PATIENTS WITH PROLACTINOMAS. AB - OBJECTIVE: Hyperprolactinemia has been associated with endothelial dysfunction and a wide range of cardiovascular risk factors, thus it can potentially lead to cardiac dysfunction. The present study was designed to interrogate our hypothesis that hyperprolactinemia can contribute to preclinical impaired left ventricular function. METHODS: Thirty-one prolactinoma patients and 60 healthy volunteers were prospectively recruited. Left ventricular function was evaluated using conventional two dimensions and M-mode echocardiography, as well as Doppler tissue imaging (DTI). RESULTS: The Tei index (0.45 +/- 0.06 vs. 0.41 +/- 0.03, P = .005) and ratio of transmitral and myocardial early diastolic velocities (E/Em; 6.30 +/- 1.45 vs. 5.64 +/- 0.69, P = .045) were significantly higher, and septal systolic velocity (Sm; 9.88 +/- 1.45 vs. 11.58 +/- 1.28 cm/s, P<.001) was significantly lower in prolactinoma patients. Furthermore, significant motional abnormalities were detected in regional segments of prolactinoma patients. Pearson's correlation analysis revealed that prolactin level was inversely associated with Sm (r = -0.373, P = .009) and late diastolic phase (Am; r = 0.293, P = .043). Moreover, inverse correlations between prolactin and partial left ventricular segment wall motion were found, including the basal (r = -0.363, P = .014), middle (r = -0.418, P = .004), and apical segment (r = -0.574, P<.001) of the posterior ventricular septum. Multivariate linear regression analysis revealed that prolactin (beta = -0.28, 95% confidence interval -0.011 to 0, P = .035), as a single factor, can significantly predict decreased Sm, independent of traditional vascular risk factors. CONCLUSION: Our results suggest that subclinical cardiac dysfunction occurs in untreated prolactinoma patients and is characterized by impaired systolic and diastolic function of the left ventricle, as well as regional segment motional abnormality. ABBREVIATIONS: A = transmitral late diastolic velocity Am = late diastolic phase Apo = apolipoprotein DTI = Doppler tissue imaging E = transmitral early diastolic velocity Em = myocardial early diastolic velocity FMD = flow-mediated dilation HOMA-IR = homeostasis model assessment of insulin resistance hsCRP = high-sensitivity C-reactive protein IMT = intima media thickness LDL-C = low-density lipoprotein cholesterol LV = left ventricular PPCM = postpartum cardiomyopathy Sm = septal systolic velocity. PMID- 29019718 TI - Bilateral red legs as a result of vitamin B12 deficiency. PMID- 29019717 TI - ADDING VFA TO DXA IDENTIFIES FRACTURE RISK IN A WAY NOT DUPLICATED BY OTHER MEASURES. AB - OBJECTIVE: Published studies have demonstrated that adding vertebral fracture assessment (VFA) to dual-energy X-ray absorptiometry (DXA) identifies more patients with increased fracture risk than DXA alone. But who needs VFA? This study attempts to determine if some test other than VFA could duplicate the additional information obtained by performing VFA on all first-time patients. This study looked at the Fracture Risk Assessment Tool (FRAX), height loss, age, documented back pain, and nonvertebral fragility fractures. METHODS: VFA was performed on 1,259 (all) DXA patients at their first visit from March 2010 through September 2013. All DXA and VFA results were read by the same International Society for Clinical Densitometry-certified clinician. RESULTS: By DXA alone, 44% were osteoporosis. Adding VFA increased clinical osteoporosis by 36% of the original total patients. Eighty-three "normal bone mineral density" patients were changed to clinical osteoporosis. FRAX identified 53% of the patients with diagnosis changes. Historical height loss was not reliable. Increasing age correlated only weakly with clinical osteoporosis. CONCLUSION: These are modest numbers from a nonacademic referral practice and may not be typical of other populations. Thirty-six percent of our patients were misclassified by DXA alone, with fragility fractures already taken into account for T-scores of -1.5 and lower. FRAX, height loss, age, back pain, and fragility fractures all failed to identify many of the patients identified by VFA. Seeing the lateral spine images obtained by VFA influenced patients and families. VFA on all first-time patients should be reconsidered. ABBREVIATIONS: BMD = bone mineral density DXA = dual-energy X-ray absorptiometry FRAX = Fracture Risk Assessment Tool HL = height loss ISCD = International Society for Clinical Densitometry VF = vertebral fracture VFA = vertebral fracture assessment. PMID- 29019719 TI - An atypical case of scleroderma. PMID- 29019720 TI - Sustainability and transformation plans: translating the perspectives. AB - Each local health economy has been tasked with producing a sustainability and transformation plan. A health economy is a system that controls and contributes to health-care resource and the effects of health services on its population. This includes commissioners, acute providers, primary care providers, community services, public health and the voluntary sector. Sustainability and transformation plans represent a shift in the way health care is planned for in England. The aim of each sustainability and transformation plan is to deliver care within existing resource limits by improving quality of care, developing new models of care and improving efficiency of care provision. The tight timescales for production of sustainability and transformation plans mean that in most cases there has been limited clinical engagement; as a result many clinicians have limited sight, understanding or ownership of the proposals within sustainability and transformation plans. As sustainability and transformation plans move into the implementation phase, this article explores the role of the clinician in the ongoing design and delivery of the local sustainability and transformation plans. By finding the common ground between the perspectives of the clinician, the commissioner and system leaders, the motivation of clinicians can be aligned with the ambitions of the sustainability and transformation plan. The common goal of a sustainability and transformation plan and the necessary collaboration required to make it successful is discussed. Ultimately, such translation is essential: clinicians are intelligent, adaptive and motivated individuals who must have a lead role in constructing and implementing plans that transform health and social care. PMID- 29019721 TI - Vertigo in a taxi driver. PMID- 29019722 TI - Marie Curie: pioneer of radioactivity, twice winner of the Nobel Prize. PMID- 29019723 TI - Accidental hanging injuries in children: recognition and management. AB - Accidental hanging is rare in childhood but is often fatal. Window blind cords pose a particular and unique risk to young children in the UK, accounting for one to two deaths annually. These accidents are frequently associated with non adherence to the safety instructions provided by the manufacturers. Early discovery of the child and initiation of effective cardiopulmonary resuscitation at the site of the incident are likely to improve the outcome. Prolonged suspension, children who are pulseless at first contact by the emergency paramedic responder, and patients with prolonged periods of remaining in asystole before return of spontaneous circulation after starting cardiopulmonary resuscitation are unlikely to have intact neurological survival. Management in the hospital includes early airway protection by intubation, maintenance of normal oxygen saturation, normothermia, active control of clinical and sub clinical seizures, and strict electrolyte and glucose regulation. Child safeguarding concerns should be considered when children have asphyxial injuries, and other signs of child physical abuse should be actively looked for. There is a need for stronger legislation in the UK to prevent some of these accidents, especially those relating to window blind cords. PMID- 29019724 TI - Health economics of cardiac resynchronization therapy. PMID- 29019725 TI - Pre-empting project failure by using a pre-mortem. AB - In health care, a post-mortem might be required after a patient has died, to try and establish why, and sometimes when and how, the patient died. Many projects are likely to fail, with reasons including the lack of tools to facilitate change, and failure to consider the organizational and environmental situation a change project faces. When projects or initiatives fail, clinicians often carry out a 'post-mortem', trying to understand the factors that contributed to the failure, with the aim of learning lessons and not repeating the same mistakes. This article discusses the management technique known as the 'pre-mortem', with application of tools and strategies to help mitigate the risks of a change leading to failure. PMID- 29019726 TI - Dilemmas in the management of venous thromboembolism in older patients. AB - Venous thromboembolism most commonly affects older patients. Despite the high incidence in this population, challenges remain in terms of the understanding of its presentation, diagnosis and management. Old age is associated with multi morbidities which may complicate the diagnosis of venous thromboembolism as signs or symptoms may be attributed to underlying medical conditions. The presence of certain comorbidities (such as congestive cardiac failure and chronic obstructive pulmonary disease) also increases the risk of venous thromboembolism, but could mimic the clinical features of pulmonary embolism. In addition, the physiological processes associated with ageing and factors such as immobility and malignancy, which are more common in older people, will further increase the thrombotic risk. Dilemmas also exist with treatment decisions because of the concomitant increased risk of bleeding, comorbidities, polypharmacy, frailty and the risk of falls. PMID- 29019728 TI - Mastoidectomy in a child with chronic granulomatous disease. PMID- 29019729 TI - Enhanced recovery: pathways to better care. PMID- 29019730 TI - Sedation in intensive care: should we reach for dexmedetomidine sooner? PMID- 29019731 TI - The NHS must achieve better value from musculoskeletal services. PMID- 29019733 TI - Late onset myasthenia gravis and carcinoid tumour: paraneoplastic syndrome? PMID- 29019732 TI - The relevance of the coagulation screen before surgery. AB - Coagulation testing has long been part of the routine assessment of the preoperative patient, with the aim of identifying those with a bleeding disorder who might suffer significant perioperative bleeding. Some of the issues surrounding this involve the low prevalence of bleeding disorders in the general population, and the implications of further testing for both the patient and the health-care system. Studies suggest that this practice is not evidence based and is considered to be outdated. Most guidelines now advise against routine coagulation screens before surgery, and instead recommend taking a thorough personal and family history of bleeding in order to determine the need for further investigations. This review analyses current evidence on this topic and provides a comprehensive view of the relevance of preoperative coagulation testing. PMID- 29019734 TI - Failed titration of endocrine replacement therapy: diagnostic significance. AB - Unsuccessful titration of endocrine replacement therapy may signify the coexistence of an unrecognized disorder which alters the response to replacement therapy. Examples include recurrent hypoglycaemia when type 1 diabetes mellitus coexists with either Addison's disease or coeliac disease. Recurrent Addisonian crisis occurs when Addison's disease coexists with thyrotoxicosis. Conversely, in a patient with Addison's disease, recognition and treatment of coexisting coeliac disease may facilitate a reduction in corticosteroid dosage. PMID- 29019735 TI - A new cross-speciality educational collaboration in perioperative medicine. PMID- 29019736 TI - Clinical and laboratory assessment of a patient with thrombocytosis. AB - Elevated platelet counts are frequently encountered in hospital medicine and arise from both physiological and pathological mechanisms. Thrombocytosis may be secondary, reflecting an inflammatory state, iron deficiency, recent surgery or point towards an underlying neoplasm. Thrombocytosis may be the presenting sign of solid tumours and haematological conditions. The discovery of the activating mutations affecting thrombopoiesis led to greater understanding of the pathobiology of essential thrombocythaemia and other myeloproliferative neoplasms. The investigation of suspected primary thrombocytosis has evolved to include testing for these disease-associated mutations. Therapy for patients with essential thrombocythaemia aims to reduce their risk of thrombotic complications by addressing cardiovascular risk factors, and using antiplatelet agents and, in selected patients, cytoreductive therapy. This article provides a logical approach to distinguishing reactive or secondary thrombocytosis from thrombocytosis associated with an underlying myeloproliferative neoplasm and gives an overview of the management of essential thrombocythaemia. PMID- 29019737 TI - Clinical News. PMID- 29019738 TI - Frailty on the acute medical unit. PMID- 29019739 TI - Purpura. PMID- 29019740 TI - Hospital care for people with learning disability. PMID- 29019741 TI - Activation of mTORC1 Signaling is Required for Timely Hair Follicle Regeneration from Radiation Injury. AB - Transit amplifying cells (TACs) are highly proliferative in nature and tend to be sensitive to ionizing radiation. Due to the abundance of TACs that support the elongation of hair shafts, growing hair follicles are highly sensitive to radiation injury. How hair follicles repair themselves after radiation injury is unclear. In this study, we observed that in 4 Gy irradiated mice, hair follicle dystrophy was induced with apoptosis-driven loss of hair matrix cells, which are the TACs that fuel hair growth. The dystrophy was repaired within 96 h without significant hair loss, indicating that a regenerative attempt successfully restored the TAC population to resume anagen growth. Soon after irradiation, mTORC1 signaling was activated in the TAC compartment and its activation was maintained until the regeneration process was completed. Inhibition of mTORC1 by rapamycin treatment increased radiation-induced cell apoptosis, reduced cell proliferation and delayed restoration of Wnt signaling in the hair matrix after radiation injury, leading to prolonged dystrophy and hair loss. These results demonstrate that mTORC1 signaling is activated after irradiation and is required for timely regeneration of the TAC pool of hair follicles, so that hair growth can resume after radiation injury. PMID- 29019742 TI - The Impact of Hypoxia on Out-of-Field Cell Survival after Exposure to Modulated Radiation Fields. AB - Advanced radiotherapy techniques such as intensity modulated radiation therapy achieve highly conformal dose distributions within target tumor volumes through the sequential delivery of multiple spatially and temporally modulated radiation fields and have been shown to influence radiobiological response. The goals of this study were to determine the effect of hypoxia on the cell survival responses of different cell models (H460, DU145, A549, MDA231 and FADU) to modulated fields and to characterize the time dependency of signaling under oxic conditions, following reoxygenation and after prolonged hypoxia. Hypoxia was induced by incubating cells at 95% nitrogen and 5% carbon dioxide for 4 h prior to irradiation. The out-of-field response in MDA231 cells was oxygen dependent and therefore selected for co-culture studies to determine the signaling kinetics at different time intervals after irradiation under oxic and hypoxic conditions. Under both oxic and hypoxic conditions, significant increases in cell survival were observed in-field with significant decreases in survival observed out-of field (P < 0.05), which were dependent on intercellular communication. The in field response of MDA231 cells showed no significant time dependency up to 24 h postirradiation, while out-of-field survival decreased significantly during the first 6 h postirradiation (P < 0.05). While in-field responses were oxygen dependent, out-of-field effects were observed to be independent of oxygen, with similar or greater cell killing under hypoxic conditions. This study provides further understanding of intercellular signaling under hypoxic conditions and highlights the need for further refinement of established radiobiological models for future applications in advanced radiotherapies. PMID- 29019743 TI - Injury prevention in male youth soccer: Current practices and perceptions of practitioners working at elite English academies. AB - Forty-one practitioners inclusive of physiotherapists, sports scientists and strength and conditioning coaches from the academies of elite soccer clubs in the United Kingdom completed an on-line questionnaire which examined their: (1) background information; (2) perceptions of injury occurrence and risk factors; (3) screening and return to play; and (4) approach to designing and delivering injury prevention programmes with a response rate of 55% (41/75). Contact injuries were the most common mechanism reported and players between 13-16 years of age were perceived to be at the greatest risk. Pertinent risk factors included: reduced lower limb and eccentric hamstring strength, proprioception, muscle imbalances, and under developed foundational movement skills. Joint range of motion, jump tests, the functional movement screen, overhead and single leg squats were the most utilised screening methods. Training modalities rated in order of importance included: resistance training, flexibility development, agility, plyometrics and balance training. Training frequency was most commonly once or twice per week, during warm-ups, independent sessions or a combination of both. Injury prevention strategies in this cohort appear to be logical; however, the classification of injury occurrence and application of screening tools to identify "at risk" players do not align with existing research. The frequency and type of training used may also be insufficient to elicit an appropriate stimulus to address pertinent risk factors based on current recommendations. PMID- 29019744 TI - Pediatric Liver Transplant: Techniques and Complications. AB - Liver transplant is considered to be the last-resort treatment approach for pediatric patients with end-stage liver disease. Despite the remarkable advance in survival rates, liver transplant remains an intricate surgery with significant morbidity and mortality. Early diagnosis of complications is crucial for patient survival but is challenging given the lack of specificity in clinical presentation. Knowledge of the liver and vascular anatomy of the donor and the recipient or recipients before surgery is also important to avoid complications. In this framework, radiologists play a pivotal role on the multidisciplinary team in both pre- and postoperative scenarios by providing a road map to guide the surgery and by assisting in diagnosis of complications. The most common complications after liver transplant are (a) vascular, including the hepatic artery, portal vein, hepatic veins, and inferior vena cava; (b) biliary; (c) parenchymal; (d) perihepatic; and (e) neoplastic. The authors review surgical techniques, the role of each imaging modality, normal posttransplant imaging features, types of complications after liver transplant, and information required in the radiology report that is critical to patient care. They present an algorithm for an imaging approach for pediatric patients after liver transplant and describe key points that should be included in radiologic reports in the pre- and postoperative settings. Online supplemental material is available for this article. (c)RSNA, 2017. PMID- 29019745 TI - Imaging of Nonmalignant Adrenal Lesions in Children. AB - The adrenal glands in children can be affected by a variety of benign lesions. The diagnosis of adrenal lesions can be challenging, but assessment of morphologic changes in correlation with the clinical presentation can lead to an accurate diagnosis. These lesions can be classified by their cause: congenital (eg, discoid adrenal gland, horseshoe adrenal gland, and epithelial cysts), vascular and/or traumatic (eg, adrenal hemorrhage), infectious (eg, granulomatous diseases), enzyme deficiency disorders (eg, congenital adrenal hyperplasia [CAH] and Wolman disease), benign neoplasms (eg, pheochromocytomas, ganglioneuromas, adrenal adenomas, and myelolipomas), and adrenal mass mimics (eg, extralobar sequestration and extramedullary hematopoiesis). Multimodality cross-sectional imaging helps to define the origin, extent, and relationship of these lesions to adjacent structures, as well as to guide treatment management. The anatomic and functional imaging modalities used to evaluate pediatric adrenal lesions include ultrasonography, computed tomography (CT), magnetic resonance imaging, and iodine 123 metaiodobenzylguanidine scintigraphy. Identifying the imaging features of nonmalignant adrenal lesions is helpful to distinguish these lesions from malignant adrenal neoplasms. Identifying characteristic imaging findings (eg, enlarged adrenal glands, with cerebriform surface, and stippled echogenicity in CAH; a T2-hyperintense mass with avid contrast enhancement in pheochromocytoma; low CT attenuation [<10 HU] and signal intensity drop on opposed-phase chemical shift images in adenoma; and enhancing suprarenal mass supplied by a systemic feeding artery in extralobar sequestration) can aid in making the correct diagnosis. In addition, clinical features (eg, ambiguous genitalia in CAH and hypertension in pheochromocytoma) can also guide the radiologist toward the correct diagnosis. (c)RSNA, 2017. PMID- 29019746 TI - Invited Commentary on "Central Nervous System Effects of Intrauterine Zika Virus Infection". PMID- 29019747 TI - Masses of the Nose, Nasal Cavity, and Nasopharynx in Children. AB - A wide range of masses develop in the nose, nasal cavity, and nasopharynx in children. These lesions may arise from the nasal ala or other structures of the nose, including the mucosa covering any surface of the nasal cavity, the cartilaginous or osseous portion of the nasal septum, the nasal turbinates, and the nasal bones. Lesions may also arise from the nasopharynx or adjacent structures and involve the nose by way of direct extension. The causes of nasal masses in children include congenital and developmental disorders such as congenital nasolacrimal duct mucocele, dermoid cyst, cephalocele, and nasal neuroglial heterotopia; inflammatory and infectious processes such as mucocele, polyp, and pyogenic granuloma; benign neoplasms such as infantile hemangioma and juvenile nasopharyngeal angiofibroma; malignant lesions such as rhabdomyosarcoma and nasopharyngeal carcinoma; and masses related to prior trauma such as septal hematoma. Although direct visualization, without imaging, is frequently sufficient to diagnose pediatric nasal conditions, in many cases imaging has a key role in the treatment of the affected child. Some of these lesions have characteristic computed tomography and/or magnetic resonance imaging findings, some of them are diagnosed on the basis of the location and imaging findings combined, and others demonstrate nonspecific imaging findings. However, imaging is important for better defining the total extent of the lesion and guiding the clinician in determining whether medical and/or surgical intervention is required. In this article, the authors review the imaging findings of the most common causes-and many of the not-so-common causes-of nasal masses encountered in the pediatric population. (c)RSNA, 2017. PMID- 29019748 TI - Doppler US in the Evaluation of Fetal Growth and Perinatal Health. AB - Fetal growth restriction is commonly defined as an estimated fetal weight (EFW) that is below the 10th percentile for gestational age. It is associated with an increased risk of intrauterine demise, neonatal morbidity, and neonatal death; therefore, antenatal detection and surveillance with the optimization of delivery timing are necessary to improve pregnancy outcomes. If the estimated due date has been verified and the EFW is below the 10th percentile for gestational age, the underlying cause should be investigated, since the clinical management, outcome, and counseling options are largely dependent on the cause of the growth restriction. Serial ultrasonography (US) for the evaluation of fetal growth and umbilical artery Doppler velocimetry are used to guide pregnancy management decisions. This article describes the accurate US detection and surveillance of fetal growth restriction, discusses the current obstetric and radiology literature regarding the use of Doppler velocimetry in the setting of fetal growth restriction, and describes the techniques for performing umbilical artery Doppler velocimetry. Although various Doppler techniques have been described in the setting of fetal growth restriction, only umbilical artery Doppler assessment is recommended to identify fetuses most at risk for poor outcome and to guide the timing of delivery. The use of other Doppler waveforms in this setting remains investigational. (c)RSNA, 2017. PMID- 29019749 TI - Pearls and Pitfalls in Diagnosing Pediatric Urinary Bladder Masses. AB - Urinary bladder masses are rare in children, and the associated histologic features and prognoses in this population are different from those in adults. Most children with urinary bladder masses present with lower urinary tract symptoms, which may include hematuria, dysuria, frequent urination, and urgency to urinate. However, some of these masses may be identified incidentally or involve generic symptoms such as abdominal distention. In general, pediatric bladder tumors can be divided into those that originate from the bladder epithelium, known as urothelial neoplasms, and mesenchymal bladder neoplasms, which are more prevalent. The most common bladder malignancy in children is a rhabdomyosarcoma, whereas the most common benign bladder lesion in the pediatric population is a papillary urothelial neoplasm of low malignant potential (PUNLMP). The first-line imaging tool for assessing bladder lesions is ultrasonography, which may be followed by a cross-sectional imaging examination such as computed tomography or magnetic resonance imaging if the origin of the mass is unclear or if distant spread is suspected. Although imaging may enable the radiologist to suggest a differential diagnosis based on lesion location and patient age, tissue biopsy generally is required to identify the exact pathologic entity. This is usually performed at cystoscopy and may be curative in cases in which the lesion is small and has low recurrence potential. Knowledge of the clinical, histopathologic, and imaging features of common bladder neoplasms is essential, as it can aid in preventing imaging pitfalls. These may include the misinterpretation of either a pelvic mass as arising from the bladder or a bladder mass as arising from the pelvis, and interpreting an inflammatory mass or bladder detritus as a neoplasm. (c)RSNA, 2017. PMID- 29019750 TI - Contrast-enhanced US Assessment of Focal Liver Lesions in Children. AB - Ultrasonography (US) is often the first line of imaging for the examination of children suspected of having liver lesions. However, gray-scale US with color Doppler imaging has limitations. The use of US contrast agents has recently been approved by the U.S. Food and Drug Administration (FDA). Compared with other imaging modalities, contrast material-enhanced US (CEUS) enables the assessment of contrast enhancement patterns with a higher temporal resolution and is therefore becoming a valuable alternative imaging technique. CEUS is advantageous owing to its high safety profile; lower cost, compared with the costs of conventional contrast-enhanced computed tomographic and magnetic resonance imaging examinations; reliability; and reproducibility. Furthermore, US examinations obviate the use of sedation, ionizing radiation, and iodinated or gadolinium-based contrast agents. All of these are desirable attributes for an imaging examination for children, the most vulnerable of patients. Focal liver lesions in children are commonly discovered incidentally, and this can pose a dilemma in terms of diagnosis and management. Owing to the FDA's recent approval of the use of a specific US contrast agent for evaluation of focal liver lesions in pediatric patients, CEUS can now be used as a problem-solving tool that complements conventional imaging examinations and aids in the follow-up of lesions. The temporal resolution with CEUS enables US images to readily depict the real-time internal vascularity of a lesion. The characterization of a lesion during different phases of enhancement improves diagnostic confidence and treatment. In this article, the authors review the composition, physiologic properties, and safety profile of CEUS; describe the technique for performing CEUS; and highlight the utility of this examination in the assessment of common focal liver lesions in children. Online supplemental material is available for this article. (c)RSNA, 2017. PMID- 29019751 TI - The 2017 RadioGraphics Monograph Issue: Pediatric Imaging. PMID- 29019752 TI - Invited Commentary: Prime Time for Contrast-enhanced Voiding Urosonography after Approval of a US Contrast Agent for Children. PMID- 29019753 TI - Imaging of Pediatric Growth Plate Disturbances. AB - The growth plates, or physes, are visible on virtually all images obtained in skeletally immature children. The proper function of these growth plates depends on an intricate balance between chondrocyte proliferation, which requires nourishment from the epiphyseal vessels, and chondrocyte death, which requires the integrity of the metaphyseal vessels. Therefore, injury to the growth plate (ie, direct insult) or vascular compromise on either side of the growth plate (ie, indirect insult) can cause growth plate dysfunction. Direct growth plate insults occur most commonly with Salter-Harris fractures, and injuries that allow the transphyseal communication of vessels are at a higher risk for subsequent transphyseal bone bridge formation. Indirect insults lead to different sequelae that are based on whether the epiphyseal blood supply or metaphyseal blood supply is compromised. Epiphyseal osteonecrosis can result in slowed longitudinal bone growth, with possible growth plate closure, and is often accompanied by an abnormal secondary ossification center. In contrast, the disruption of metaphyseal blood supply alters endochondral ossification and allows the persistence of chondrocytes within the metaphysis, which appear as focal or diffuse growth plate widening. Imaging remains critical for detecting acute injuries and identifying subsequent growth disturbances. Depending on the imaging findings and patient factors, these growth disturbances may be amenable to conservative or surgical treatment. Therefore, an understanding of the anatomy and physiologic features of the normal growth plate and the associated pathophysiologic conditions can increase diagnostic accuracy, enable radiologists to anticipate future growth disturbances, and ensure optimal imaging, with the ultimate goal of timely and appropriate intervention. (c)RSNA, 2017. PMID- 29019754 TI - Abnormalities of the Coronary Arteries in Children: Looking beyond the Origins. AB - Coronary arterial abnormalities are uncommon findings in children that have profound clinical implications. Although anomalies of the coronary origins are well described, there are many other disease processes that affect the coronary arteries. Immune system-mediated diseases (eg, Kawasaki disease, polyarteritis nodosa, and other vasculiditides) can result in coronary arterial aneurysms, strictures, and abnormal tapering of the vessels. Because findings at imaging are an important component of diagnosis in these diseases, the radiologist's understanding of them is essential. Congenital anomalies may present at varying ages, and findings in hemodynamically significant anomalies, such as fistulas, are key for both diagnosis and preoperative planning. Pediatric heart surgery can result in wide-ranging postoperative imaging appearances of the coronary arteries and also predisposes patients to a multitude of complications affecting the heart and coronary arteries. In addition, although rare, accidental trauma can lead to injury of the coronary arteries, and awareness and detection of these conditions are important for diagnosis in the acute setting. Patients with coronary arterial conditions at presentation may range from being asymptomatic to having findings of myocardial infarction. Recognition of the imaging findings is essential to direct appropriate treatment. (c)RSNA, 2017. PMID- 29019755 TI - Interstitial Lung Disease in Children Made Easier...Well, Almost. AB - Interstitial lung disease (ILD) in pediatric patients is different from that in adults, with a vast array of pathologic conditions unique to childhood, varied modes of presentation, and a different range of radiologic appearances. Although rare, childhood ILD (chILD) is associated with significant morbidity and mortality, most notably in conditions of disordered surfactant function, with respiratory failure in 100% of neonates with surfactant protein B dysfunction and 100% mortality without lung transplantation. The authors present a summary of lung development and anatomy, followed by an organized approach, using the structure and nomenclature of the 2013 update to the chILD Research Network classification system, to aid radiologic diagnosis of chILD. Index radiologic cases with contemporaneous histopathologic findings illustrate a summary of recent imaging studies covering the full spectrum of chILD. chILD is best grouped by age at presentation from infancy (diffuse developmental disorders, lung growth abnormalities, specific conditions of unknown origin, surfactant dysfunction mutations) to later childhood (disorders of the normal host, disorders related to systemic disease processes, disorders related to immunocompromise). Appreciation of the temporal division of chILD into infant and later childhood onset, along with a sound understanding of pulmonary organogenesis and surfactant homeostasis, will aid in providing useful insight into this important group of pediatric conditions. Application of secondary lobular anatomy to interpretation of thin section computed tomographic images is pivotal to understanding patterns of ILD and will aid in selecting and narrowing a differential diagnosis. (c)RSNA, 2017. PMID- 29019756 TI - Imaging of Skeletal Disorders Caused by Fibroblast Growth Factor Receptor Gene Mutations. AB - Fibroblast growth factors and fibroblast growth factor receptors (FGFRs) play important roles in human axial and craniofacial skeletal development. FGFR1, FGFR2, and FGFR3 are crucial for both chondrogenesis and osteogenesis. Mutations in the genes encoding FGFRs, types 1-3, are responsible for various skeletal dysplasias and craniosynostosis syndromes. Many of these disorders are relatively common in the pediatric population, and diagnosis is often challenging. These skeletal disorders can be classified based on which FGFR is affected. Skeletal disorders caused by type 1 mutations include Pfeiffer syndrome (PS) and osteoglophonic dysplasia, and disorders caused by type 2 mutations include Crouzon syndrome (CS), Apert syndrome (AS), and PS. Disorders caused by type 3 mutations include achondroplasia, hypochondroplasia, thanatophoric dysplasia (TD), severe achondroplasia with developmental delay and acanthosis nigricans, Crouzonodermoskeletal syndrome, and Muenke syndrome. Most of these mutations are inherited in an autosomal dominant fashion and are gain-of-function-type mutations. Imaging plays a key role in the evaluation of these skeletal disorders. Knowledge of the characteristic imaging and clinical findings can help confirm the correct diagnosis and guide the appropriate molecular genetic tests. Some characteristics and clinical findings include premature fusion of cranial sutures and deviated broad thumbs and toes in PS; premature fusion of cranial sutures and syndactyly of the hands and feet in AS; craniosynostosis, ocular proptosis, and absence of hand and foot abnormalities in CS; rhizomelic limb shortening, caudal narrowing of the lumbar interpediculate distance, small and square iliac wings, and trident hands in achondroplasia; and micromelia, bowing of the femora, and platyspondyly in TD. (c)RSNA, 2017. PMID- 29019757 TI - Pediatric Ovarian Torsion: Spectrum of Imaging Findings. AB - The accurate diagnosis of ovarian torsion is imperative, as loss of the ovary can have long-term consequences in terms of fertility. However, a nonspecific clinical presentation in conjunction with a highly variable imaging appearance makes the diagnosis of ovarian torsion challenging. This is complicated even further in the pediatric population, as these patients cannot always articulate their symptoms or provide an adequate medical history. Therefore, imaging has a critical role in the diagnosis of ovarian torsion in pediatric patients. Common imaging findings of ovarian torsion in the prepubescent and adolescent populations include asymmetric enlargement of the ovary, peripheral location of ovarian follicles, and midline location of the ovary. A coexistent mass within the ovary may or may not be present. Antenatal torsion also can occur and may be discovered at routine or specific imaging of the fetus or postnatal imaging of the neonate. Imaging findings in the perinatal population that may suggest torsion include a cystic mass with a fluid-debris level and a complex, multiseptated mass. This article reviews ovarian torsion throughout the pediatric years-from the fetal period through adolescence. It reviews the clinical presentation and imaging findings of this abnormality while describing the relevant anatomy, embryologic features, and pathophysiology. Ovarian torsion may be variable in appearance owing to the age and degree of torsion, which is seen early as a large ovary with peripheral follicles and later, once necrosis has ensued, as a complex cystic mass. (c)RSNA, 2017. PMID- 29019758 TI - Sonographic Evaluation of Pediatric Thyroid Nodules. AB - A thyroid nodule detected clinically or incidentally at medical imaging is a common indication for ultrasonography (US) in the adult population. This scenario is less frequently the case in pediatric patients, and the approach to evaluation of thyroid nodules deserves modification in these patients because of the increased probability of malignancy in children, compared with adults. Evaluating a thyroid nodule with US in a systematic way requires familiarity with a number of features that can be assessed and the terms that the radiologist uses in each category. The probability of malignancy is influenced by certain features, and several models have emerged to integrate these details into an overall risk assessment to guide management and biopsy of thyroid nodules. Clinical features of thyroid cancer differ between pediatric and adult patients, and risk factors and certain genetic syndromes portend earlier manifestation of thyroid malignancy. This article provides a review of (a) US features of thyroid nodules with an emphasis on the predictive capacity for malignancy, focused on the pediatric age group when the data exist, (b) clinical information, including risk factors and genetic syndromes pertinent to the pediatric population, and (c) the state of the current literature and controversies in diagnosing and managing pediatric thyroid cancer. (c)RSNA, 2017. PMID- 29019759 TI - Non-Catheter-related Venous Thromboembolism in Children: Imaging Review from Head to Toe. AB - Non-catheter-related venous thromboembolism (VTE) is less common in children than in adults. Although the presence of a central venous catheter is the most common cause of venous thrombosis in children, infection and inflammation, malignancy, hypercoagulability, dehydration, and certain sites of normal variant and pathologic anatomic narrowing all predispose to VTE in children. The mortality and morbidity of VTE vary according to the underlying cause, including whether malignancy is present. Various modalities including ultrasonography (US), computed tomography, and magnetic resonance imaging can be used to image VTE, with some modalities better suited to particular parts of the body and clinical scenarios than others. When feasible, US is the initial test of choice for the diagnosis of VTE. US findings of acute VTE include a dilated noncompressible vein, intraluminal echoes, lack of color flow, and abnormal spectral venous waveforms. Serial US examinations are useful for monitoring patient response to therapy; a normal compressible vein will be seen after complete resolution of thrombus, and chronic venous changes including wall thickening, intraluminal webs, and phleboliths, which are readily apparent at US. Accurate and timely diagnosis of VTE must take into account the various advantages and disadvantages of each modality including speed, accuracy, availability, exposure to ionizing radiation, and need for sedation, as well as the clinical stability and transportability of the child. This article reviews some of the more common causes of VTE in children (other than those related to a central venous catheter) according to body part and discusses the associated imaging findings. (c)RSNA, 2017. PMID- 29019760 TI - MR Lymphangiography in Children: Technique and Potential Applications. AB - The lymphatic system, an important component of the circulatory system with essential physiologic functions, can be affected by various disease processes. There has been a delay in the development of effective imaging methods for the lymphatic system due to its small size, which limits visualization as well as introduction of contrast material. Traditionally, the lymphatic system has been imaged by injecting contrast material or radiotracers into the feet or hands. This is not sufficient for assessment of the central conducting lymphatics (CCLs) (such as the thoracic duct or the cisterna chyli). Fluoroscopic intranodal lymphangiography with injection of oil-based contrast material into groin lymph nodes improves visualization of CCLs but is limited in practice owing to the use of radiation and the potential risk for paradoxical embolization in children with left-to-right shunt. Dynamic contrast material-enhanced (DCE) magnetic resonance (MR) lymphangiography, which is performed by injecting gadolinium-based contrast material into groin lymph nodes, overcomes these limitations. T2-weighted imaging plays a complementary role to DCE MR lymphangiography in the assessment of CCLs. DCE MR lymphangiography demonstrates preserved integrity or any abnormality of the CCLs (including blockage or leak). The technique has recently been used in evaluating pulmonary lymphatic perfusion syndrome in children with plastic bronchitis, neonatal lymphatic flow disorders, and nontraumatic chylothorax. It is useful in identification of the source of chylous ascites and contributes to understanding of the anatomy of lymphatic malformations. It is successfully used for planning of embolization of aberrant lymphatic channels in a variety of lymphatic flow disorders. This review discusses the anatomy and function of the lymphatic system, the evolution of imaging of the lymphatic system, and DCE MR lymphangiography technique and its applications in children. (c)RSNA, 2017. PMID- 29019761 TI - Contrast-enhanced Voiding Urosonography for Vesicoureteral Reflux Diagnosis in Children. AB - Contrast-enhanced voiding urosonography (ceVUS) is a dynamic imaging technique that makes it possible to study the structure of the urinary tract after the administration of intravesical contrast material. Initially, ceVUS was indicated mainly to study vesicoureteral reflux (VUR); however, since the ability of ceVUS to depict the structure of the urethra was demonstrated in both sexes, ceVUS is now indicated for examination of the entire urinary tract. The main benefit of ceVUS is that it does not use ionizing radiation. In recent years, fundamental changes have occurred in the understanding of VUR. The lessening effect of VUR and the low rate of occurrence of urethral pathologic conditions have given rise to changes in the indications for tests for these conditions. In addition to being able to help confirm a diagnosis of VUR, the ceVUS technique can be used to depict obstructive and nonobstructive urethral pathologic conditions, as well as normal variants, on high-quality images. Furthermore, ceVUS enables real-time assessment of voiding function. For these reasons, ceVUS should be not only an alternative to voiding cystourethrography, but also the technique of choice for the study of the entire urinary tract in pediatric patients. Online supplemental material is available for this article. (c)RSNA, 2017. PMID- 29019763 TI - Trends in Autism Spectrum Disorders: The Interaction of Time, Group-Level Socioeconomic Status, and Individual-Level Race/Ethnicity. PMID- 29019764 TI - Henry E. Sigerist (1891- 1957): Medical Historian, Advocate of "Socialized" Medicine, and Admirer of the Soviet Health System. PMID- 29019762 TI - Central Nervous System Effects of Intrauterine Zika Virus Infection: A Pictorial Review. AB - Relatively few agents have been associated with congenital infections involving the brain. One such agent is the Zika virus, which has caused several outbreaks worldwide and has spread in the Americas since 2015. The Zika virus is an arbovirus transmitted by infected female mosquito vectors, such as the Aedes aegypti mosquito. This virus has been commonly associated with congenital infections of the central nervous system and has greatly increased the rates of microcephaly. Ultrasonography (US) remains the method of choice for fetal evaluation of congenital Zika virus infection. For improved assessment of the extent of the lesions, US should be complemented by magnetic resonance (MR) imaging. Postnatal computed tomography and MR imaging can also unveil additional findings of central nervous system involvement, such as microcephaly with malformation of cortical development, ventriculomegaly, and multifocal calcifications in the cortical-subcortical junction, along with associated cortical atrophy. The calcifications may be punctate, dystrophic, linear, or coarse and may follow a predominantly bandlike distribution. A small anterior fontanelle with prematurely closed sutures is also observed with Zika virus infection. In this review, the prenatal and postnatal neurologic imaging findings of congenital Zika virus infection are covered. Radiologists must be aware of this challenging entity and have knowledge of the various patterns that may be depicted with each imaging modality and the main differential diagnosis of the disease. As in other neurologic infections, serial imaging is able to help demonstrate the progression of the findings. (c)RSNA, 2017. PMID- 29019765 TI - Assessing the Public Health Impact of the mHealth App Business. PMID- 29019766 TI - Screening for Food Insecurity: Short-Term Alleviation and Long-Term Prevention. PMID- 29019767 TI - Health: An Optimal Commodity for the Attention Economy. PMID- 29019768 TI - Deregulation, Devolution, and State Preemption Laws' Impact on US Mortality Trends. PMID- 29019770 TI - Quite Outside Our Imagination: Alan Gregg Diary Entries During His Trip to the Soviet Union, December 1927. PMID- 29019769 TI - Abortion Is Not Just About the Role of Women in Society, but Also the Role of Religion. PMID- 29019771 TI - On the Promise and Peril of Technology for Population Health: A Public Health of Consequence, November 2017. PMID- 29019772 TI - Advancing Science and Public Health Practice on Climate Change and Health Justice. PMID- 29019773 TI - Our Greedy Health Care System. PMID- 29019775 TI - AJPH Global News. PMID- 29019774 TI - Anti-Tobacco Propaganda: Soviet Union Versus Nazi Germany. PMID- 29019776 TI - Two Sides of the Crisis. PMID- 29019777 TI - The Physicians' Case for Marijuana Legalization. PMID- 29019779 TI - Can the FDA Help Reduce Drug Prices or the Cost of Medical Care? PMID- 29019780 TI - The Promises, Realities, and Legacies of the Bolshevik Revolution, 1917-2017. PMID- 29019783 TI - Advancing Suicide Prevention Through a Focus on Firearm Safety. PMID- 29019786 TI - The Time Is Now for eHealth Research With Latinos. PMID- 29019782 TI - Recreational Cannabis Legalization and Opioid-Related Deaths in Colorado, 2000 2015. AB - OBJECTIVES: To examine the association between Colorado's legalization of recreational cannabis use and opioid-related deaths. METHODS: We used an interrupted time-series design (2000-2015) to compare changes in level and slope of monthly opioid-related deaths before and after Colorado stores began selling recreational cannabis. We also describe the percent change in opioid-related deaths by comparing the unadjusted model-smoothed number of deaths at the end of follow-up with the number of deaths just prior to legalization. RESULTS: Colorado's legalization of recreational cannabis sales and use resulted in a 0.7 deaths per month (b = -0.68; 95% confidence interval = -1.34, -0.03) reduction in opioid-related deaths. This reduction represents a reversal of the upward trend in opioid-related deaths in Colorado. CONCLUSIONS: Legalization of cannabis in Colorado was associated with short-term reductions in opioid-related deaths. As additional data become available, research should replicate these analyses in other states with legal recreational cannabis. PMID- 29019787 TI - Advancing the Right to Health-The Vital Role of Law. PMID- 29019790 TI - The Essence of the Soviet Health System. PMID- 29019789 TI - Mexican Cohort Study Predates but Predicts the Type of Body Composition Changes Expected From the Mexican Sugar-Sweetened Beverage Tax. PMID- 29019788 TI - Gaps in Federal and State Screening of Tuberculosis in the United States. PMID- 29019791 TI - The influence of dopaminergic system inhibition on biosynthesis of gonadotrophin releasing hormone (GnRH) and GnRH receptor in anoestrous sheep; hierarchical role of kisspeptin and RFamide-related peptide-3 (RFRP-3). AB - This study aimed to explain how prolonged inhibition of central dopaminergic activity affects the cellular processes governing gonadotrophin-releasing hormone (GnRH) and LH secretion in anoestrous sheep. For this purpose, the study included two experimental approaches: first, we investigated the effect of infusion of sulpiride, a dopaminergic D2 receptor antagonist (D2R), on GnRH and GnRH receptor (GnRHR) biosynthesis in the hypothalamus and on GnRHR in the anterior pituitary using an immunoassay. This analysis was supplemented by analysis of plasma LH levels by radioimmunoassay. Second, we used real-time polymerase chain reaction to analyse the influence of sulpiride on the levels of kisspeptin (Kiss1) mRNA in the preoptic area and ventromedial hypothalamus including arcuate nucleus (VMH/ARC), and RFamide-related peptide-3 (RFRP-3) mRNA in the paraventricular nucleus (PVN) and dorsomedial hypothalamic nucleus. Sulpiride significantly increased plasma LH concentration and the levels of GnRH and GnRHR in the hypothalamic-pituitary unit. The abolition of dopaminergic activity resulted in a significant increase in transcript level of Kiss1 in VMH/ARC and a decrease of RFRP-3 in PVN. The study demonstrates that dopaminergic neurotransmission through D2R is involved in the regulatory pathways of GnRH and GnRHR biosynthesis in the hypothalamic-pituitary unit of anoestrous sheep, conceivably via mechanisms in which Kiss1 and RFRP-3 participate. PMID- 29019792 TI - Prevalence and determinants of susceptibility to cigarette smoking among non smoking senior secondary school students in Ilorin, North Central Nigeria. AB - Background Globally, efforts are being made to control tobacco use. However, adolescents who are susceptible to cigarette smoking constitute a major challenge to control efforts. Defining the magnitude of susceptible adolescents and associated factors in any setting is critical to the development of measures that will successfully address this issue. This study estimated the prevalence and factors associated with susceptibility to cigarette smoking among non smoking students in Ilorin, North Central Nigeria. Methods A cross sectional study involving 2000 secondary school students selected via multistage sampling technique. Data was collected using a self administered questionnaire, while analysis was done using SPSS 16.0. Results Prevalence of susceptibility to cigarette smoking among non smoking respondents was 13.6% (14.5% among males and 11.4% among females, respectively). Factors associated with susceptibility to cigarette smoking were parental smoking habit [odds ratio (OR) = 4.43], having close friends who smoke (OR = 6.54), engagement in vocational training (OR = 1.39), exposure to environmental tobacco smoke at home (OR = 1.61), knowledge of harmful effects of tobacco (OR = 2.35) and perceptions of the effect of cigarette smoking such as enhancing attractive among boys (OR = 2.03), and causing weight gain among boys (OR = 2.39) and among girls (OR = 6.05). Conclusion The high prevalence of susceptibility to cigarette smoking among the non smoking students highlights the potential for future increase in prevalence of cigarette smoking in the setting. Efforts at controlling cigarette smoking will not be totally successful if susceptibility to cigarette smoking among adolescents is not addressed. PMID- 29019793 TI - Tuning biomimetic membrane barrier properties by hydrocarbon, cholesterol and polymeric additives. AB - The barrier properties of cellular membranes are increasingly attracting attention as a source of inspiration for designing biomimetic membranes. The broad range of potential technological applications makes the use of lipid and lately also polymeric materials a popular choice for constructing biomimetic membranes, where the barrier properties can be controlled by the composition of the membrane constituent elements. Here we investigate the membrane properties reported by the light-induced proton pumping activity of bacteriorhodopsin (bR) reconstituted in three vesicle systems of different membrane composition. Specifically we quantify how the resulting proton influx and efflux rates are influenced by the membrane composition using a variety of membrane modulators. We demonstrate that by adding hydrocarbons to vesicles with reconstituted bR formed from asolectin lipids the resulting transmembrane proton fluxes changes proportional to the carbon chain length when compared against control. We observe a similar proportionality in single-component 1,2-Dioleoyl-sn-glycero-3 phosphocholine model membranes when using cholesterol. Lastly we investigate the effects of adding the amphiphilic di-block co-polymer polybutadiene polyethyleneoxide (PB12-PEO10) to phospholipid membranes formed from 1,2-Dioleoyl sn-glycero-3-phosphocholine, 1,2-Dioleoyl-sn-glycero-3-phosphatidylethanolamine, and 1,2-Dioleoyl-sn-glycero-3-phosphatidylserine. The proton pumping activity of bR (measured as a change in extra-vesicular pH) in mixed lipid/PB12-PEO10 lipid systems is up to six-fold higher compared to that observed for bR containing vesicles made from PB12-PEO10 alone. Interestingly, bR inserts with apparent opposite orientation in pure PB12-PEO10 vesicles as compared to pure lipid vesicles. Addition of equimolar amounts of lipids to PB12-PEO10 results in bR orientation similar to that observed for pure lipids. In conclusion our results show how the barrier properties of the membranes can be controlled by the composition of the membrane. In particular the use of mixed lipid-polymer systems may pave the way for constructing biomimetic membranes tailored for optimal properties in various applications including drug delivery systems, biosensors and energy conservation technology. PMID- 29019794 TI - Vessel calibre and flow splitting relationships at the internal carotid artery terminal bifurcation. AB - OBJECTIVE: Vessel lumen calibres and flow rates are thought to be related by mathematical power laws, reflecting the optimization of cardiac versus metabolic work. While these laws have been confirmed indirectly via measurement of branch calibres, there is little data confirming power law relationships of flow distribution to branch calibres at individual bifurcations. APPROACH: Flow rates and diameters of parent and daughter vessels of the internal carotid artery terminal bifurcation were determined, via robust and automated methods, from 4D phase-contrast magnetic resonance imaging and 3D rotational angiography of 31 patients. MAIN RESULTS: Junction exponents were 2.06 +/- 0.44 for relating parent to daughter branch diameters (geometrical exponent), and 2.45 +/- 0.75 for relating daughter branch diameters to their flow division (flow split exponent). These exponents were not significantly different, but showed large inter- and intra-individual variations, and with confidence intervals excluding the theoretical optimum of 3. Power law fits of flow split versus diameter ratio and pooled flow rates versus diameters showed exponents of 2.17 and 1.96, respectively. A significant negative correlation was found between age and the geometrical exponent (r = -0.55, p = 0.003) but not the flow split exponent. We also found a dependence of our results on how lumen diameter is measured, possibly explaining some of the variability in the literature. SIGNIFICANCE: Our study confirms that, on average, division of flow to the middle and anterior cerebral arteries is related to these vessels' relative calibres via a power law, but it is closer to a square law than a cube law as commonly assumed. PMID- 29019795 TI - DIFFERENCE IN TREATMENT OUTCOMES ACCORDING TO OPTICAL COHERENCE TOMOGRAPHY-BASED STAGES IN TYPE 3 NEOVASCULARIZATION (RETINAL ANGIOMATOUS PROLIFERATION). AB - PURPOSE: To compare 12-month treatment outcomes of Type 3 neovascularization among its different stages as classified using an optical coherence tomography based method. METHODS: This retrospective observational study included 40 patients (40 eyes) who were newly diagnosed with Type 3 neovascularization. The patients were initially administered 3 monthly anti-vascular endothelial growth factor injections. Repeat treatment was performed when recurrence of fluid was noted. Disease staging was classified using the optical coherence tomography based method. The best-corrected visual acuity at diagnosis and at 12 months and degree of change in best-corrected visual acuity were compared among the different stages of the disease. In addition, incidence of progression in the disease stages was estimated. RESULTS: Among the 40 patients, 14 (35.0%) were classified as Stage 2 and 26 (65.0%) were classified as Stage 3. The best corrected visual acuity values at diagnosis and at 12 months were 0.61 +/- 0.31 (20/81 Snellen equivalents) and 0.46 +/- 0.30 (20/57) in the Stage 2 group and 0.67 +/- 0.42 (20/93) and 0.70 +/- 0.49 (20/100) in the Stage 3 group, respectively. There was a significant difference in best-corrected visual acuity change between the two groups (P = 0.036). During the follow-up period, 3 retinal pigment epithelium tears and 2 submacular hemorrhages had developed in the Stage 3 group. Progression of the disease from Stage 2 to Stage 3 was noted in 2 patients (14.3%). CONCLUSION: The visual outcome was worse in Stage 3 than in Stage 2, and adverse events that may lead to abrupt visual deterioration developed only in Stage 3. Further studies are needed to reveal whether anti vascular endothelial growth factor therapy can suppress the progression of the disease stages. PMID- 29019796 TI - Monitoring modalities and assessment of fluid status: A practice management guideline from the Eastern Association for the Surgery of Trauma. AB - BACKGROUND: Fluid administration in critically ill surgical patients must be closely monitored to avoid complications. Resuscitation guided by invasive methods are not consistently associated with improved outcomes. As such, there has been increased use of focused ultrasound and Arterial Pulse Waveform Analysis (APWA) to monitor and aid resuscitation. An assessment of these methods using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework is presented. METHODS: A subsection of the Surgical Critical Care Task Force of the Practice Management Guideline Committee of EAST conducted two systematic reviews to address the use of focused ultrasound and APWA in surgical patients being evaluated for shock. Six population, intervention, comparator, and outcome (PICO) questions were generated. Critical outcomes were prediction of fluid responsiveness, reductions in organ failures or complications and mortality. Forest plots were generated for summary data and GRADE methodology was used to assess for quality of the evidence. Reviews are registered in PROSPERO, the International Prospective Register of Systematic Reviews (42015032402 and 42015032530). RESULTS: Twelve focused ultrasound studies and 20 APWA investigations met inclusion criteria. The appropriateness of focused ultrasound or APWA-based protocols to predict fluid responsiveness varied widely by study groups. Results were mixed in the one focused ultrasound study and 9 APWA studies addressing reductions in organ failures or complications. There was no mortality advantage of either modality versus standard care. Quality of the evidence was considered very low to low across all PICO questions. CONCLUSION: Focused ultrasound and APWA compare favorably to standard methods of evaluation but only in specific clinical settings. Therefore, conditional recommendations are made for the use of these modalities in surgical patients being evaluated for shock. LEVEL OF EVIDENCE: Systematic Review, level II. PMID- 29019797 TI - The promise of mesenchymal stem cell therapy for acute respiratory distress syndrome. AB - This review describes the current state of the science on mesenchymal stem cell (MSC) treatment for acute lung injury (ALI). The general characteristics, regenerative potential, and mechanism of action of MSCs are first presented. Next, particular emphasis is placed on the application of MSCs for the treatment of acute respiratory distress syndrome (ARDS) in preclinical and clinical studies. Finally, we discuss current challenges and future directions in the field presented from a clinician-researcher perspective. The objective of this work is to provide the readership with a current review of the literature discussing the hurdles and overall promise of MSCs as therapeutic interventions for the treatment of ARDS. PMID- 29019798 TI - The Return to Literature-Making Doctors Matter in the New Era of Medicine. AB - The rapid explosion of medical knowledge of the 19th and 20th centuries required a transformation in medical education, which, to that point, had been marked by low educational standards. To combat the lack of regulation, the 1910 Flexner Report recommended sweeping reforms. By 1930, students hoping to enroll in a medical school would need to complete courses in chemistry, physics, and biology, leaving little room for the liberal arts.Medicine is once again changing. The impact of artificial intelligence is being felt across all medical fields, and the nature of physicians' jobs in the new landscape of intelligent machines will inevitably also have to change. What will the role of new physicians be? And how should medical education be amended to meet those needs?In 2017, the Georgetown University School of Medicine graduated the first group of students from its Literature and Medicine Track-the first U.S. medical school track dedicated to the study of literature. This Invited Commentary explores the work done in, and the scholarship resulting from, this novel educational program and suggests ways in which literature could be used to prepare future doctors for the evolving demands of the medical field. PMID- 29019799 TI - To See the Suffering. AB - The author notes the impressive growth in medical humanities programs, scholarly journals, textbooks, and national and international conferences as well as the convening of two recent national forums or boards addressing the potential of the humanities and the arts to improve medical practice. She also notes that the field of medical humanities seems to have shifted from addressing topics on the margins of medical education to equipping students with the foundational skills required for effective doctoring. This Invited Commentary proposes a number of personal, relational, and interpretive consequences to rigorous training in the humanities or the arts that might lead to improvement in the skills of doctoring. Where else but in hospitals with very ill patients and very young doctors who care for them are such skills needed the most? The author suggests that to see the suffering might be what the humanities in medicine are for, and that those who become capable of seeing the suffering around them in medical practice both experience the cost of countenancing the full burden of illness and death and, simultaneously, comprehend with clarity the worth of this thing, this life. PMID- 29019800 TI - Academic Medical Support to the Ebola Virus Disease Outbreak in Liberia. AB - During the Ebola Virus Disease (EVD) epidemic in West Africa (2014-2016), many faculty, staff, and trainees from U.S. academic medical centers (i.e., teaching hospitals and their affiliated medical schools; AMCs) wished to contribute to the response to the outbreak, but many barriers prevented their participation. Here, the authors describe a successful long-term academic collaboration in Liberia that facilitated participation in the EVD response. This Perspective outlines the role the authors played in the response (providing equipment and training, supporting the return of medical education), the barriers they faced (logistical and financial), and elements that contributed to their success (partnering and coordinating their response with both U.S. and African institutions). There is a paucity of literature discussing the role of AMCs in disaster response, so the authors discuss the lessons learned and offer suggestions about the responsibilities that AMCs have and the roles they can play in responding to disaster situations. PMID- 29019801 TI - Mapping the Landscape, Journeying Together: The Gold Foundation's Model for Research-Based Advocacy in Humanism in Medicine. AB - Mapping the Landscape, Journeying Together (MTL) is an initiative of the Arnold P. Gold Foundation Research Institute. The MTL initiative awards teams with a grant to complete a rigorous review of the literature on a topic related to humanism in health care. Teams may then seek a discovery or advocacy grant to fill in gaps in knowledge or to make or advocate for change. In this Commentary, the author reveals the MTL journey through the metaphor of cartography. She describes the initial development of a road map, as well as the MTL community's experience of navigation, discovery, and exploration. MTL participants are not only incrementally adding to a complex body of knowledge but also actively cultivating a robust community of practice. PMID- 29019802 TI - Design and Evaluation of a Low-Cost Speculum Examination Training Model. AB - INTRODUCTION: Learning how to perform a speculum examination is a key component of the medical student curriculum, yet there is a paucity of data on the validity of available speculum examination models. This purpose of this study is to design, evaluate, and improve a low-cost speculum examination model. METHODS: A speculum examination training model was created using low-cost or recycled materials from other simulators. A total of 54 medical students, residents, and faculty in the obstetrics and gynecology department of a single academic institution performed speculum examinations on the model. Each participant completed a survey to provide qualitative and quantitative data. Using this feedback from participants, adjustments were made to the model and a similar survey was repeated with a total of 35 medical students and residents. RESULTS: The first iteration of the model was viewed positively by most participants. Eighty-three percent gave the model either a very realistic or realistic rating. Ninety-four percent thought the model was a very useful or useful teaching device. There were few significant differences in quantitative data based on experience level. Qualitative feedback yielded generally positive remarks with areas for improvement. The second iteration of the model was successful in differentiating between novice and skilled participants: residents were significantly better at identifying cervical position compared with students. Eighty-nine percent of participants thought the model was very useful or useful, whereas 49% thought the model was very realistic or realistic. DISCUSSION: The first iteration of the model demonstrated realism and usefulness; however, it lacked construct validity. Participant feedback yielded several helpful suggestions to improve the model. The second and final iteration of the model differentiated between novice and skilled participants at the cost of realism. This low-cost model is a useful tool to aid in teaching the speculum examination. Further development and study of the model could lead to a valid tool to evaluate speculum examination skills. PMID- 29019803 TI - The SPOT GRADE: A New Method for Reproducibly Quantifying Surgical Wound Bleeding. AB - STUDY DESIGN: Benchtop model with prospective surgeon video testing. OBJECTIVE: To create a surface bleeding severity scale, the SPOT GRADE (SG), for quantitative assessment of target bleeding site (TBS) blood loss. This is of particular interest for spinal surgery due to epidural bleeding and an inability to use diathermy and radiofrequency cautery close to nerve roots. SUMMARY OF BACKGROUND DATA: A novel apparatus perfusable at known flow rates and simulating different sized wounds was used to create movies to educate surgeons on specific degrees of bleeding. METHODS: Training (36) and testing (108) videos were created using a benchtop apparatus employing different bleeding severities based on the six-level SG (none, minimal, mild, moderate, severe, and extreme) and TBS sizes (1, 10, and 50 cm). Fourteen surgeons in four specialties (cardiothoracic, abdominal, spine, and orthopedic lower extremity) were trained and tested to evaluate SG characteristics including inter-rater and intrarater reliability. RESULTS: The interclass correlation coefficient was estimated to be 0.89840 (95% confidence interval [CI]: 0.85771, 1), whereas the intraclass correlation coefficient was estimated to be 0.93673 (95% CI: 0.89603, 1). In 98% of cases (95% CI: 0.9736, 0.9927), surgeons correctly identified eligible bleeds for a future clinical trial (scores = 1, 2, or 3) and in 91% of cases (95% CI: 0.8895, 0.9344), surgeons correctly identified noneligible bleeds (scores = 4 or 5). In 98.6% of cases (95% CI: 0.9777, 0.9945), physicians correctly identified true hemostasis (score = 0). Based upon these data the probability of a physician rating a bleed incorrectly as hemostasis (score = 0) is estimated to be 1.51% (95% CI: 0.0061, 0.0363). CONCLUSION: This SG is reproducible and reliable providing a basis for educating surgeons on TBS blood loss. It appears to be a new standard for evaluating wound blood loss. LEVEL OF EVIDENCE: 2. PMID- 29019805 TI - Do Obese and Extremely Obese Patients Lose Weight After Lumbar Spine Fusions? Analysis of a Cohort of 7303 Patients from the Kaiser National Spine Registry. AB - : MINI: The outcome of interest was >= 5% weight change 1 year postoperative from baseline. Seven thousand three hundred three lumbar fusions in the Kaiser Permanente Spine Registry between 2009 and 2013 were analyzed. Weight loss occurred in: body mass index < 30, 11.1%; obese, BMI 30 to 39, 16.6%, odds ratio = 1.42; extremely obese, body mass index >=40, 21.1%, odds ratio = 1.73. STUDY DESIGN: A retrospective cohort study from the Kaiser Permanente Spine Registry. OBJECTIVE: The aim of this study was to determine whether obese and extremely obese patients with lumbar spine fusions lost a clinically significant amount of weight (>=5%) 1 year after their surgery. SUMMARY OF BACKGROUND DATA: Obesity in the United States has a prevalence of 35% and is a global health issue. Obesity is associated with lumbar spine disease. There is limited evidence regarding postsurgical weight loss after spine surgery. METHODS: Adult patients in the Kaiser Permanente Spine Registry with lumbar fusions performed between 2009 and 2013 were included in the study sample (n = 7303). The outcome of interest was >=5% weight change 1 year postoperative from baseline. Three body mass index (BMI) groups were analyzed (BMI < 30; 30-39 obese; >=40 extremely obese). Covariate analysis, multivariable logistic regression, odds ratios (ORs), and 95% confidence intervals (95% CIs) are provided. RESULTS: At the time of spine surgery, 4456 (61%) had a BMI < 30, 2519 (34.5%) had a BMI between 30 and 39, 232 (3.2%) had a BMI >=40, and 96 (1.3%) were missing their intraoperative BMI. We observed the following weight loss pattern: BMI < 30, 11.1%; BMI 30 to 39, 16.6%; BMI >=40, 21.1%. We observed the following weight gain pattern: BMI < 30, 15.6%; BMI 30 to 39, 12.7%; BMI >=40, 9.5%. After risk-adjustment, obese and extremely obese patients were more likely to lose a clinically significant amount of weight 1 year after surgery (BMI 30-39: OR = 1.42, 95% CI 1.22-1.65; BMI >=40: OR = 1.73, 95% CI 1.21-2.47) compared with nonobese patients. CONCLUSION: In this large cohort of patients with lumbar spinal fusions, we observed more significant weight loss in obese and extremely obese patients than nonobese patients. Additional research is needed to determine whether this weight loss is due to improvements in back pain and increased physical activity. LEVEL OF EVIDENCE: 3. PMID- 29019806 TI - Lumbar Vertebral Endplate Defects on Magnetic Resonance Images: Classification, Distribution Patterns, and Associations with Modic Changes and Disc Degeneration. AB - STUDY DESIGN: A cross-sectional magnetic resonance (MR) imaging study. OBJECTIVE: To classify and characterize endplate defects using routine lumbar MR images and to determine associations of endplate defects with Modic changes (MCs) and disc degeneration. SUMMARY OF BACKGROUND DATA: Previously, a cadaveric study revealed that endplate lesions were common and associated with back pain history. New in vivo approaches appropriate for clinical studies are needed to further this potentially important line of research on the clinical significance of endplate lesions, including their relation with MCs, disc degeneration, and back pain. METHODS: Using a MRI archive, 1564 endplates of 133 subjects (59 men and 74 women, mean age 58.9 +/- 11.9 years) with the presence of MCs were retrospectively collected from April of 2014 to June of 2015. On the basis of morphological characteristics, a protocol was proposed to identify three distinct types of endplate defects, including focal, corner, and erosive defects. The location, size, and distribution patterns of various endplate lesions were characterized. MCs and disc degeneration were measured to examine their associations with endplate defects. RESULTS: Endplate defects were observed in 27.8% of endplates studied. Greater age was associated with the presence of endplate defects. Focal defects were the most common (13.5%), followed by erosive defects (11.1%) and corner defects (3.2%). Defect types also differed in size and distribution patterns. Endplate defects and MCs had similar distribution patterns in the lumbar spine. The presence of endplate defects were associated with the presence of MCs (odds ratio = 4.29, P < 0.001), and associated with less disc signal intensity and disc height, and greater disc bulging (P < 0.05). CONCLUSION: The three endplate defects identified on routine MR images appear to represent different pathologies and may play a key role in the pathogenesis of MCs. This classification system may facilitate clinical studies on endplate defects. LEVEL OF EVIDENCE: 4. PMID- 29019804 TI - Quantification of Propionic Acid in the Bovine Spinal Disk After Infection of the Tissue With Propionibacteria acnes Bacteria. AB - STUDY DESIGN: Research. OBJECTIVE: The goal of this study was to investigate whether Propionibacteria acnes infection of the intervertebral disc can be detected noninvasively by nuclear magnetic resonance (NMR) spectroscopy. SUMMARY OF BACKGROUND DATA: Microbiological studies of surgical samples suggest that a significant subpopulation of back pain patients may have occult disc infection with P. acnes bacteria. This hypothesis is further supported by a double-blind clinical trial showing that back pain patients with Modic type 1 changes may respond to antibiotic treatment. Because significant side effects are associated with antibiotic treatment, there is a need for a noninvasive method to detect whether specific discs in back pain patients are infected with P acnes bacteria. METHODS: P. acnes bacteria were obtained from human patients. NMR detection of a propionic acid (PA) in the bacteria extracts was conducted on 500 MHz high resolution spectrometer, whereas in vivo NMR spectroscopy of an isolated bovine disk tissue infected with P. acnes was conducted on 7 T magnetic resonance imaging scanner. RESULTS: NMR spectra of P. acnes metabolites revealed a distinct NMR signal with identical chemical shits (1.05 and 2.18 ppm) as PA (a primary P. acne metabolite). The 1.05 ppm signal does not overlap with other bacteria metabolites, and its intensity increases linearly with P. acnes concentration. Bovine disks injected with P. acnes bacteria revealed a very distinct NMR signal at 1.05 ppm, which linearly increased with P. acnes concentration. CONCLUSION: The 1.05 ppm NMR signal from PA can be used as a marker of P. acnes infection of discs. This signal does not overlap with other disc metabolites and linearly depends on P. acnes concentration. Consequently, NMR spectroscopy may provide a noninvasive method to detect disc infection in the clinical setting. LEVEL OF EVIDENCE: N/A. PMID- 29019808 TI - Commentary on Manuscript 155547R1. PMID- 29019807 TI - Pedicle Screw Insertion Accuracy Using O-Arm, Robotic Guidance, or Freehand Technique: A Comparative Study. AB - STUDY DESIGN: A retrospective radiological study. OBJECTIVE: The aim of this study was to evaluate the accuracy of pedicle screw insertion using O-Arm navigation, robotic assistance, or a freehand fluoroscopic technique. SUMMARY OF BACKGROUND DATA: Pedicle screw insertion using either "O-Arm" navigation or robotic devices is gaining popularity. Although several studies are available evaluating each of those techniques separately, no direct comparison has been attempted. METHODS: Eighty-four patients undergoing implantation of 569 lumbar and thoracic screws were divided into three groups. Eleven patients (64 screws) had screws inserted using robotic assistance, 25 patients (191 screws) using the O-arm, while 48 patients (314 screws) had screws inserted using lateral fluoroscopy in a freehand technique. A single experienced spine surgeon assisted by a spinal fellow performed all procedures. Screw placement accuracy was assessed by two independent observers on postoperative computed tomography (CTs) according to the A to D Rampersaud criteria. RESULTS: No statistically significant difference was noted between the three groups. About 70.4% of screws in the freehand group, 69.6% in the O arm group, and 78.8% in the robotic group were placed completely within the pedicle margins (grade A) (P > 0.05). About 6.4% of screws were considered misplaced (grades C&D) in the freehand group, 4.2% in the O-arm group, and 4.7% in the robotic group (P > 0.05). The spinal fellow inserted screws with the same accuracy as the senior surgeon (P > 0.05). CONCLUSION: The advent of new technologies does not appear to alter accuracy of screw placement in our setting. Under supervision, spinal fellows might perform equally well to experienced surgeons using new tools. The lack of difference in accuracy does not imply that the above-mentioned techniques have no added advantages. Other issues, such as surgeon/patient radiation, fiddle factor, teaching suitability, etc., outside the scope of our present study, need further assessment. LEVEL OF EVIDENCE: 3. PMID- 29019809 TI - Atrial Fibrillation and Central Nervous Complications in Liver Transplanted Hereditary Transthyretin Amyloidosis Patients. AB - BACKGROUND: Central nervous system (CNS) complications are increasingly noted in liver transplanted (LTx) hereditary transthyretin amyloid (ATTRm) amyloidosis patients; this suggests that the increased survival allows for intracranial ATTRm formation from brain synthesized mutant TTR. However, atrial fibrillation (AF), a recognised risk factor for ischemic CNS complications, is also observed after LTx. The aim of the study was to investigate the occurrence of CNS complications and AF in LTx ATTRm amyloidosis patients. METHODS: The medical records of all LTx ATTRm amyloidosis patients in the county of Vasterbotten, Sweden, were investigated for information on CNS complications, AF, anticoagulation (AC) therapy, hypertension, cardiac ischemic disease, hypertrophy, and neurological status. RESULTS: Sixty-three patients that had survived for 3 years or longer after LTx were included in the analysis. Twenty-five patients had developed 1 or more CNS complications at a median of 21 years after onset of disease. AF was noted in 21 patients (median time to diagnosis 24 years). Cerebrovascular events (CVE) developed in 17 (median time to event 21 years). CVEs occurred significantly more often in patients with AF (P < 0.002). AC therapy significantly reduced CVEs, including bleeding in patients with AF (P = 0.04). Multivariate analysis identified AF as the only remaining regressor with a significant impact on CVE (hazard ratio, 3.8; 95% confidence interval 1.1-9.5; P = 0.029). CONCLUSIONS: AF is an important risk factor for CVE in LTx ATTRm amyloidosis patients, and AC therapy should be considered. However, the increased bleeding risk with AC therapy in patients with intracranial amyloidosis should be acknowledged. PMID- 29019810 TI - Management of Patients Who Receive an Organ Transplant Abroad and Return Home for Follow-up Care: Recommendations From the Declaration of Istanbul Custodian Group. AB - Eradicating transplant tourism depends on complex solutions that include efforts to progress towards self-sufficiency in transplantation. Meanwhile, professionals and authorities are faced with medical, legal, and ethical problems raised by patients who return home after receiving an organ transplant abroad, particularly when the organ has been obtained through illegitimate means. In 2016, the Declaration of Istanbul Custodian Group convened an international, multidisciplinary workshop in Madrid, Spain, to address these challenges and provide recommendations for the management of these patients, which are presented in this paper. The core recommendations are grounded in the belief that principles of transparency, traceability, and continuity of care applied to patients who receive an organ domestically should also apply to patients who receive an organ abroad. Governments and professionals are urged to ensure that, upon return, patients are promptly referred to a transplant center for evaluation and care, not cover the costs of transplants resulting from organ or human trafficking, register standardized information at official registries on patients who travel for transplantation, promote international exchange of data for traceability, and develop a framework for the notification of identified or suspected cases of transnational transplant-related crimes by health professionals to law enforcement agencies. PMID- 29019811 TI - Rhesus Alloimunization Occurs After Rh Incompatible Liver Transplantation in Children. PMID- 29019812 TI - Venous Thromboembolism After Adult Lung Transplantation: A Frequent Event Associated With Lower Survival. AB - BACKGROUND: The incidence of venous thromboembolism (VTE) after lung transplantation (LTX) varies significantly across studies. Two studies have suggested that these thrombotic events are associated with a lower posttransplant survival. Herein, we sought to determine the incidence, predictors, and impact of VTE on survival after LTX at a quaternary referral center. METHODS: This was a large cohort study of LTX recipients. Key outcome parameters were time to VTE after transplant and survival. Deep vein thrombosis (DVT) diagnosis required a positive ultrasound. Pulmonary embolism diagnosis required either a positive chest computed tomography angiogram or a high-probability ventilation/perfusion scan. RESULTS: The overall incidence of VTE among 701 LTX recipients was 43.8%, of which 97.7% were DVT episodes, of which 71.3% were in the upper extremities. Predictors of VTE were prior history of DVT (hazard ratio [HR], 2.82; 95% confidence interval [CI], 1.49-5.37), days in intensive care (HR, 1.01; 95% CI, 1.01-1.02), and the use of extracorporeal membrane oxygenation (HR, 2.22; 95% CI, 1.43-3.45). Importantly, VTE predicted a lower posttransplant survival (HR, 1.70; 95% CI, 1.28-2.26), when occurring within or after the first 30 days. The location of the DVT, either upper extremity or below the knee, also predicted a poor survival. CONCLUSIONS: VTE was frequent in LTX recipients and predicted a poor survival even when located in the upper extremities or below the knee. These data suggest that aggressive VTE screening/treatment protocols be implemented in post-LTX population. PMID- 29019813 TI - Contemporary Policies Regarding Alcohol and Marijuana Use Among Liver Transplant Programs in the United States. AB - BACKGROUND: Alcoholic liver disease is a common indication for orthotopic liver transplantation (OLT). Although OLT has been shown to confer survival benefit to patients with acute alcoholic hepatitis (AAH), historically most programs require a 6-month abstinence period before OLT which excludes patients with AAH. Marijuana has become legal in more than half the states in the United States. This survey of liver transplant programs was conducted to evaluate current policies regarding alcohol, marijuana and methadone use. METHODS: A questionnaire was distributed to 100 United Network for Organ Sharing-approved liver transplant programs in North America that have performed at least 30 liver transplants/year in the last 5 years. RESULTS: Forty-nine programs responded. Only 43% of the programs required a specific period of abstinence before transplant for alcoholic liver disease and only 26% enforced 6-month abstinence policy. For patients with AAH, 71% programs waived the 6-month abstinence requirement and considered psychosocial factors, such as family support, patient's motivation, or commitment to rehabilitate. Few programs used validated instruments to assess risk of relapse in AAH patients. Fourteen percent of programs transplant patients actively using marijuana and an additional 28% of programs listed patients using marijuana provided they discontinue by the time of OLT. Active methadone users were accepted in 45% of the programs. CONCLUSIONS: Policies regarding alcohol use have become more flexible particularly toward patients with AAH. Marijuana use is also more accepted. Although policies regarding alcohol and marijuana have changed significantly in the last decade, they remain highly variable among programs. PMID- 29019815 TI - An International, Multicenter, Observational Study of Cerebral Oxygenation during Infant and Neonatal Anesthesia. AB - BACKGROUND: General anesthesia during infancy is associated with neurocognitive abnormalities. Potential mechanisms include anesthetic neurotoxicity, surgical disease, and cerebral hypoxia-ischemia. This study aimed to determine the incidence of low cerebral oxygenation and associated factors during general anesthesia in infants. METHODS: This multicenter study enrolled 453 infants aged less than 6 months having general anesthesia for 30 min or more. Regional cerebral oxygenation was measured by near-infrared spectroscopy. We defined events (more than 3 min) for low cerebral oxygenation as mild (60 to 69% or 11 to 20% below baseline), moderate (50 to 59% or 21 to 30% below baseline), or severe (less than 50% or more than 30% below baseline); for low mean arterial pressure as mild (36 to 45 mmHg), moderate (26 to 35 mmHg), or severe (less than 25 mmHg); and low pulse oximetry saturation as mild (80 to 89%), moderate (70 to 79%), or severe (less than 70%). RESULTS: The incidences of mild, moderate, and severe low cerebral oxygenation were 43%, 11%, and 2%, respectively; mild, moderate, and severe low mean arterial pressure were 62%, 36%, and 13%, respectively; and mild, moderate, and severe low arterial saturation were 15%, 4%, and 2%, respectively. Severe low oxygen saturation measured by pulse oximetry was associated with mild and moderate cerebral desaturation; American Society of Anesthesiology Physical Status III or IV versus I was associated with moderate cerebral desaturation. Severe low cerebral saturation events were too infrequent to analyze. CONCLUSIONS: Mild and moderate low cerebral saturation occurred frequently, whereas severe low cerebral saturation was uncommon. Low mean arterial pressure was common and not well associated with low cerebral saturation. Unrecognized severe desaturation lasting 3 min or longer in infants seems unlikely to explain the subsequent development of neurocognitive abnormalities. PMID- 29019814 TI - The Optimization of the Prevascularization Procedures for Improving Subcutaneous Islet Engraftment. AB - BACKGROUND: Subcutaneous islet transplantation is associated with minimal invasiveness, but poor vascularization. Thus, the optimization of the prevascularization procedures is crucial for improving the outcomes. Although the effectiveness of basic fibroblast growth factor (bFGF) was reported, the optimal procedures remain unclear. We sought to optimize the prevascularization procedures including the use of a novel scaffold, recombinant peptide (RCP). METHODS: Devices containing various amount of bFGF with/without heparin or RCP were implanted into the subcutaneous space of diabetic C57BL/6 mice. Syngeneic islets were transplanted into the prevascularized space. Blood glucose, intraperitoneal glucose tolerance, and immunohistochemistry were evaluated. RESULTS: The cure rates in all the device groups irrespective of bFGF doses were considerably higher than in the nondevice group. The cure rate in the bFGF0 group was unexpectedly higher than that in the subcutaneous islet transplant alone group (the None group) (57.1% vs 28.6%). Glucose tolerance was ameliorated in the bFGF10(-), 10(+) and 15(-) groups. The number of von Willebrand factor-positive vessels in the bFGF10(+) group was significantly higher than that in the None and bFGF0 groups (P < 0.01). Taken together, the bFGF10(+) group was considered to have received optimized procedures. In a marginal graft model, the efficiency in the RCP group was better than that in the bFGF10(+) group, furthermore, comparable to that in the intraportal transplantation group. Unlike bFGF, no bleeding and effusion were observed in the RCP group. CONCLUSIONS: These results suggest that optimizing biomaterials to induce efficient prevascularization could be a novel strategy for improving subcutaneous islet transplantation. PMID- 29019816 TI - Implementation and Evaluation of the Z-Score System for Normalizing Residency Evaluations. AB - BACKGROUND: Assessment of clinical competence is essential for residency programs and should be guided by valid, reliable measurements. We implemented Baker's Z score system, which produces measures of traditional core competency assessments and clinical performance summative scores. Our goal was to validate use of summative scores and estimate the number of evaluations needed for reliable measures. METHODS: We performed generalizability studies to estimate the variance components of raw and Z-transformed absolute and peer-relative scores and decision studies to estimate the evaluations needed to produce at least 90% reliable measures for classification and for high-stakes decisions. A subset of evaluations was selected representing residents who were evaluated frequently by faculty who provided the majority of evaluations. Variance components were estimated using ANOVA. RESULTS: Principal component extraction from 8,754 complete evaluations demonstrated that a single factor explained 91 and 85% of variance for absolute and peer-relative scores, respectively. In total, 1,200 evaluations were selected for generalizability and decision studies. The major variance component for all scores was resident interaction with measurement occasions. Variance due to the resident component was strongest with raw scores, where 30 evaluation occasions produced 90% reliable measurements with absolute scores and 58 for peer-relative scores. For Z-transformed scores, 57 evaluation occasions produced 90% reliable measurements with absolute scores and 55 for peer relative scores. The results were similar for high-stakes decisions. CONCLUSIONS: The Baker system produced moderately reliable measures at our institution, suggesting that it may be generalizable to other training programs. Raw absolute scores required few assessment occasions to achieve 90% reliable measurements. PMID- 29019817 TI - Early-Claim Modifiable Factors Associated With Return-to-Work Self-Efficacy Among Workers Injured at Work: Are There Differences Between Psychological and Musculoskeletal Injuries? AB - OBJECTIVE: The objective of this study was to investigate modifiable early-injury factors which are associated with self-efficacy to return-to-work (RTW-SE) and explore whether these factors are different for people with psychological or upper-body musculoskeletal (UB-MSK) injuries. METHODS: The study used a sample of workers with a UB-MSK (N = 244) or psychological (N = 113) injury who were off work. Differences between injury types were investigated across variables related to: (1) communication with RTW stakeholders; and (2) components of the job itself. A stratified and multigroup analysis was conducted using structural equation modeling (SEM). RESULTS: Injury-stratified models revealed no significant differences. In a combined model, higher job autonomy and low-stress contact from the RTW coordinator remained significantly associated with higher RTW-SE. CONCLUSIONS: Job autonomy and low-stress contact from the RTW coordinator are possible areas to target to increase self-efficacy among injured workers. PMID- 29019818 TI - I Pledge. PMID- 29019819 TI - A Research of Pyogenic Granuloma Genesis Factor With Immunohistochemical Analysis. AB - Pyogenic granuloma (PG) is a type of vascular tumor for which the growth mechanism is poorly understood. Estrogen and progesterone may influence vascular malformations by increasing neovascularization in the lesions. Pregnancy tumor is a term for PG that occurs on the gingival mucosa of pregnant women in response to local irritation or injury. The etiology and pathogenesis of this phenomenon are not fully understood. Hormonal imbalance has been hypothesized to be responsible for the development of gingival hyper-reactive inflammatory responses. Moreover, it has been shown in vitro that the female sex hormone is a potential regulator of the production of several growth factors, such as vascular endothelial growth factor (VEGF), basic fibroblast growth factor, and nerve growth factor, in various cell types. Epidermal growth factor receptor (EGFR) is also involved in a signaling cascade that influences proliferation and other tumor-promoting activities, as well as the responsiveness to chemotherapy. The aim of this study was to examine the relationship between PG pathogenesis and hormone imbalance in 21 patients. All specimens were analyzed by immunohistochemical staining with hematoxylin and eosin for the following hormones: estrogen receptor, progesterone receptor, VEGF, and EGFR. The analysis of the specimens showed that estrogen receptor and EGFR were not associated with PG, while VEGF was statistically related to PG. In addition, there was no significantly difference between sex, tumor location, or pregnancy. There are few studies about correlation between the pathogenesis of PG and sex hormones or growth factors demonstrated via immunohistochemical analysis. The results of this study indicate that estrogen and progesterone do not influence the pathogenesis of PG; however, VEGF may be associated with the pathogenesis of PG. PMID- 29019820 TI - Split-Overlapping Genioplasty: Surgical Technique, Morphological and Radiological Long-Term Outcomes. AB - BACKGROUND: The overlapping bone flap genioplasty, described by Tessier, was developed to treat major retrognathia or long and retruded chins. For 15 years, we have used a modified version of this technique to avoid its drawbacks. The aim of this article is to describe our modification and evaluate the long-term morphologic and radiologic outcomes. PATIENTS AND METHOD: The authors included every split-overlapping genioplasty performed in our department between 2004 and 2014. Demographics, surgical data, and complications were recorded. Radiologic bone resorption was evaluated comparing preoperative, day-1 postoperative, and year-1 postoperative cephalometric x-rays. Morphologic outcomes were evaluated on standardized pre- and postoperative views using an analogic Likert scale. SURGICAL TECHNIQUE: The main modification of the procedure consists in separating the posterior cortex of the transplant using a reciprocating saw. After overlapping the reduced transplant onto the mandible, the posterior cortex is used as an apposition graft to soften the labiomental crease. RESULTS: Forty seven patients were analyzed during this period. In 44 patients, the procedure was combined with mandibular and/or maxillary osteotomy. The average reduction of symphysis height was 5 mm, and the average pogonion advancement was 4.3 mm. After 1 year, we recorded 7% average bone resorption. No major complications (nerve injury, hematoma, among others) were reported. Morphologic outcomes were deemed satisfactory or very satisfactory in the vast majority of cases. CONCLUSION: Split-overlapping genioplasty is a safe and reliable procedure with stable, long lasting outcomes. This versatile technique is particularly useful for the correction of a massive symphysis or high and retruded chins. PMID- 29019821 TI - From the Editor. PMID- 29019822 TI - Endocervical Polyp With Florid "Epidermal Metaplasia": Report of a Previously Undescribed Phenomenon From a Dermatopathologic View: Is it an Epidermal Inclusion Cyst or a Dermoid Cyst. PMID- 29019824 TI - Risk of vertebral compression fractures in multiple myeloma patients: A finite element study: Erratum. PMID- 29019825 TI - Retrospective study of intravascular large B-cell lymphoma cases diagnosed in Quebec: A retrospective study of 29 case reports: Erratum. PMID- 29019823 TI - From Classical to Unusual: Report on 5 Cases of Transient Reactive Aquagenic Pseudokeratoderma and Review of the Literature. AB - Transient reactive aquagenic pseudokeratoderma is characterized by transient whitish and translucent papules after water exposure in palms and soles. We report 5 additional cases and their histopathologic features. Patient 5 showed a topography that had not been reported before; this demonstrates that it is not an exclusive condition of palms and soles. Patient 2 presents very subtle clinical findings, making difficult the diagnosis. And the other 3 patients have a typical presentation. Transient reactive aquagenic pseudokeratoderma has heterogeneous clinical features; in some cases, histopathologic findings, although subtle, help to confirm the diagnosis. PMID- 29019826 TI - Thanks for being there. PMID- 29019827 TI - LETTERS. PMID- 29019828 TI - LEGAL QUESTIONS. PMID- 29019830 TI - Breaking the link between I.V. therapy and HIT. PMID- 29019834 TI - ...About multiple endocrine neoplasia type 1. PMID- 29019832 TI - Treating pain after a total joint replacement. PMID- 29019837 TI - Best-Practice Interventions: Suppressing the scourge of AMI. PMID- 29019836 TI - Best-Practice Interventions: Suppressing the scourge of AMI. PMID- 29019838 TI - Heart attack. PMID- 29019839 TI - Understanding the new AHA guidelines part II. PMID- 29019840 TI - Nursing2006 Patient-safety survey report. PMID- 29019841 TI - Nursing2006 Patient-safety survey report. PMID- 29019842 TI - Managing pseudoaneurysm after cardiac catheterization. PMID- 29019843 TI - Questioning judgment. PMID- 29019844 TI - CCRN review: Test yourself with this practice exam. PMID- 29019845 TI - Help your patient combat postoperative atelectasis. PMID- 29019846 TI - Calling to say good-bye. PMID- 29019847 TI - INSIGHTS ON DEATH & DYING. PMID- 29019848 TI - Combination drugs... PMID- 29019850 TI - Ventriculo-Arterial Coupling Analysis Predicts the Hemodynamic Response to Norepinephrine in Hypotensive Postoperative Patients: A Prospective Observational Study. AB - OBJECTIVES: The objectives of the present study were to evaluate, in patients with persistent arterial hypotension in the immediate postcardiac surgery period, the effects of norepinephrine infusion on ventriculo-arterial coupling, its determinants: arterial elastance and end-systolic ventricular elastance, and to test the ability of arterial elastance to end-systolic ventricular elastance ratio to predict stroke volume increases. DESIGN: Prospective observational study. SETTING: Cardiac-vascular surgical ICU. PATIENTS: Twenty-eight postoperative cardiac surgery patients, in whom physicians decided to administer norepinephrine infusion, were included. MEASUREMENTS AND MAIN RESULTS: Arterial pressure, stroke volume index, cardiac index, indexed total peripheral resistance, arterial compliance, arterial elastance, and end-systolic ventricular elastance, were measured before and after norepinephrine infusion. We estimated ventriculo-arterial coupling by the arterial elastance to end-systolic ventricular elastance ratio and defined stroke volume responders by a stroke volume increase greater than or equal to 15%. Twenty-two of the 28 subjects had altered ventriculo-arterial coupling (1.87 [1.57-2.51] vs 1.1 [1-1.18]). Fifteen of the 28 subjects (54%) were stroke volume responders. At baseline, stroke volume responders had similar arterial pressure, higher indexed total peripheral resistance, arterial elastance, arterial elastance to end-systolic ventricular elastance ratio (2.21 [1.69-2.89] vs 1.33 [1.1-1.56]; p < 0.05), and lower arterial compliance, indexed total peripheral resistance and cardiac index. Norepinephrine significantly increased arterial pressure in all subjects. In stroke volume responders, norepinephrine increased arterial elastance, end systolic ventricular elastance, cardiac index, and improved arterial elastance/end-systolic ventricular elastance coupling. The baseline arterial elastance to end-systolic ventricular elastance ratio predicted stroke volume responsiveness (area under the curve [95% CI], 0.87 [0.71-1]; p < 0.0001). CONCLUSIONS: In patients with arterial hypotension norepinephrine increased end systolic ventricular elastance and arterial elastance. The effects of norepinephrine on stroke volume depend on baseline ventriculo-arterial coupling. Although norepinephrine infusion corrects arterial hypotension in all subjects, increase of stroke volume occurred only in subjects with altered ventriculo arterial coupling. PMID- 29019853 TI - Holder-Pasteurized Human Donor Milk: How Long Can It Be Preserved? AB - OBJECTIVE: When own mother's milk falls short, pasteurized human donor milk is recommended as alternative feeding for preterm infants. Donor milk has to meet the highest safety standards, but its processing and storage is expensive. The recommended storage time of pasteurized donor milk is 3 months. The objective of the present study was to determine whether the frozen storage time of pasteurized donor milk can be extended beyond 3 months without compromising its safety and quality. METHODS: For this prospective observational study breast milk samples of 34 unique women, collected between November 2014 and June 2015, were provided by the Dutch Human Milk Bank. Samples were Holder pasteurized within 3 months after expression and stored at -20 degrees C. Analysis of both bacterial growth (by inoculation of milk on a blood and a cysteine-, lactose-, and electrolyte deficient agar) and fat, crude protein, carbohydrate and energy content of milk (analyzed by infrared spectroscopy) was done monthly during the first 6 months and every 2 months thereafter, up to 1 year postpasteurization. RESULTS: Thirty of 306 (9.8%) follow-up samples showed bacterial growth when cultured. None of the samples showed sequential contamination with the same strain up to 8 months of frozen storage. No significant decreases in macronutrients and energy content were observed over 8 months. CONCLUSION: Pasteurized human donor milk can be stored safely for 8 months at -20 degrees C, without compromising its macronutrient and energy content. This longer storage time will reduce disposal of expired donor milk and subsequently reduce costs. PMID- 29019852 TI - Modification of Tracheal Cuff Shape and Continuous Cuff Pressure Control to Prevent Microaspiration in an Ex Vivo Pig Tracheal Two-Lung Model. AB - OBJECTIVES: Microaspiration of subglottic secretions plays a pivotal role in ventilator-associated pneumonia. Impact of endotracheal tube cuff material and shape on tracheal sealing performance remains debated. The primary objective was to compare the tracheal sealing performance of polyvinyl chloride tapered, cylindrical and spherical cuffs. Secondary objectives were to determine the impact of continuous cuff pressure control on sealing performance and pressure variability. DESIGN: Prospective randomized ex vivo animal study. SETTING: French research laboratory. SUBJECTS: Seventy-two ex vivo pig tracheal two-lung blocks. INTERVENTIONS: Blocks were randomly intubated with cylindrical (n = 26), tapered (n = 24), or spherical (n = 22) polyvinyl chloride endotracheal tube cuffs. Two milliliter of methylene blue were instilled above the cuff to quantify microaspirations, and lungs were ventilated for 2 hours. Continuous cuff pressure control was implemented in 33 blocks. MEASUREMENTS AND MAIN RESULTS: Cuff pressures were continuously recorded, and after 2 hours, a microaspiration score was calculated. Tapered cuffs improved cuff sealing performance compared with spherical cuffs with or without continuous cuff pressure control. Compared with spherical cuffs, tapered cuffs reduced the microaspiration score without and with continuous pressure control by 65% and 72%, respectively. Continuous cuff pressure control did not impact sealing performance. Tapered cuffs generated higher cuff pressures and increased the time spent with overinflation compared with spherical cuffs (median [interquartile range], 77.9% [0-99.8] vs. 0% [0 0.5]; p = 0.03). Continuous cuff pressure control reduced the variability of tapered and spherical cuffs likewise the time spent with overinflation of tapered and cylindrical cuffs. CONCLUSIONS: Polyvinyl chloride tapered cuffs sealing enhanced performance at the cost of an increase in cuff pressure and in time spent with overinflation. Continuous cuff pressure control reduced the variability and normalized cuff pressures without impacting sealing performance. PMID- 29019851 TI - Outcomes of ICU Patients With a Discharge Diagnosis of Critical Illness Polyneuromyopathy: A Propensity-Matched Analysis. AB - OBJECTIVES: To assess the impact of a discharge diagnosis of critical illness polyneuromyopathy on health-related outcomes in a large cohort of patients requiring ICU admission. DESIGN: Retrospective cohort with propensity score matched analysis. SETTING: Analysis of a large multihospital database. PATIENTS: Adult ICU patients without preexisting neuromuscular abnormalities and a discharge diagnosis of critical illness polyneuropathy and/or myopathy along with adult ICU propensity-matched control patients. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Of 3,567 ICU patients with a discharge diagnosis of critical illness polyneuropathy and/or myopathy, we matched 3,436 of these patients to 3,436 ICU patients who did not have a discharge diagnosis of critical illness polyneuropathy and/or myopathy. After propensity matching and adjusting for unbalanced covariates, we used conditional logistic regression and a repeated measures model to compare patient outcomes. Compared to patients without a discharge diagnosis of critical illness polyneuropathy and/or myopathy, patients with a discharge diagnosis of critical illness polyneuropathy and/or myopathy had fewer 28-day hospital-free days (6 [0.1] vs 7.4 [0.1] d; p < 0.0001), had fewer 28-day ventilator-free days (15.7 [0.2] vs 17.5 [0.2] d; p < 0.0001), had higher hospitalization charges (313,508 [4,853] vs 256,288 [4,470] dollars; p < 0.0001), and were less likely to be discharged home (15.3% vs 32.8%; p < 0.0001) but had lower in-hospital mortality (13.7% vs 18.3%; p < 0.0001). CONCLUSIONS: In a propensity-matched analysis of a large national database, a discharge diagnosis of critical illness polyneuropathy and/or myopathy is strongly associated with deleterious outcomes including fewer hospital-free days, fewer ventilator-free days, higher hospital charges, and reduced discharge home but also an unexpectedly lower in-hospital mortality. This study demonstrates the clinical importance of a discharge diagnosis of critical illness polyneuropathy and/or myopathy and the need for effective preventive interventions. PMID- 29019854 TI - The Best Choice for Second-line Agent in Standard Treatment-refractory Children With Autoimmune Hepatitis. PMID- 29019855 TI - Bovine Colostrum for Preterm Infants in the First Days of Life: A Randomized Controlled Pilot Trial. AB - OBJECTIVES: Mother's own milk (MM) is the best nutrition for newborn preterm infants, but is often limited in supply just after birth. Pasteurized human donor milk (DM), and especially preterm infant formula (IF) are less optimal diets than MM. We hypothesized that it is feasible to use bovine colostrum (BC), the first milk from cows, as a supplement to MM, during the first weeks after preterm birth. METHODS: In an open-label, randomized, controlled pilot safety trial, supplementation of MM with BC was compared with DM supplementation (Danish unit) or IF supplementation (Chinese unit). If MM was limited or lacking, BC, DM or IF were given according to local feeding guidelines during the first 14 days of life. RESULTS: Forty infants were included and randomized in Denmark and in China, with gestational ages 29.9 +/- 0.4 and 31.1 +/- 0.2 weeks, respectively. Infants supplemented with BC received more enteral protein (P < 0.05) and tended to reach full enteral feeding earlier (China only). Eight infants fed BC showed a temporary elevation in plasma tyrosine on day 7, versus 2 infants in the DM/IF groups. There were no differences between diet groups in feeding intolerance or clinical adverse events. CONCLUSIONS: Our results indicate that it is feasible to use BC as a supplement to MM during the first weeks of life to increase enteral protein intake in preterm infants. Plasma tyrosine levels may be a good marker for excessive protein intake. A larger randomized trial is required to test the safety and possible short- and long-term clinical benefits of BC supplementation during the first weeks of life for preterm infants. PMID- 29019856 TI - Cost-utility Analysis: Thiopurines Plus Endoscopy-guided Biological Step-up Therapy is the Optimal Management of Postoperative Crohn's Disease. AB - BACKGROUND: Postoperative recurrence of Crohn's disease is common. This study sought to assess whether the postoperative management should be based on biological therapy alone or combined with thiopurines and whether the therapy should be started immediately after surgery or guided by either endoscopic or clinical recurrence. METHODS: A Markov model was developed to estimate expected health outcomes in quality-adjusted life years (QALYs) and costs in Canadian dollars (CAD$) accrued by hypothetical patients with high recurrence risk after ileocolic resection. Eight strategies of postoperative management were evaluated. A lifetime time horizon, an annual discount rate of 5%, a societal perspective, and a cost-effectiveness threshold of 50,000 CAD$/QALY were assumed. Deterministic and probabilistic sensitivity analyses were conducted. The model was validated against randomized trials and historical cohorts. RESULTS: Three strategies dominated the others: endoscopy-guided full step-up therapy (14.80 QALYs, CAD$ 462,180), thiopurines immediately post-surgery plus endoscopy-guided biological step-up therapy (14.89 QALYs, CAD$ 464,099) and combination therapy immediately post-surgery (14.94 QALYs, CAD$ 483,685). The second strategy was the most cost-effective, assuming a cost-effectiveness threshold of 50,000 CAD$/QALY. Probabilistic sensitivity analysis showed that the second strategy has the highest probability of being the optimal alternative in all comparisons at cost effectiveness thresholds from 30,000 to 100,000 CAD$/QALY. The strategies guided only by clinical recurrence and those using biologics alone were dominated. CONCLUSIONS: According to this decision analysis, thiopurines immediately after surgery and addition of biologics guided by endoscopic recurrence is the optimal strategy of postoperative management in patients with Crohn's disease with high risk of recurrence (see Video Abstract, Supplemental Digital Content 1, http://links.lww.com/IBD/B654). PMID- 29019857 TI - Interleukin-27 Is a Potential Rescue Therapy for Acute Severe Colitis Through Interleukin-10-Dependent, T-Cell-Independent Attenuation of Colonic Mucosal Innate Immune Responses. AB - BACKGROUND: If treatment with intravenous steroids fail, inflammatory bowel disease patients with acute severe colitis face systemic anti-tumor necrosis factor biologic rescue therapy or colectomy. Interleukin (IL)-27 is a cytokine with an immunosuppressive role in adaptive immune responses. However, the IL-27 receptor complex is also expressed on innate immune cells, and there is evidence that IL-27 can impact the function of innate cell subsets, although this particular functionality in vivo is not understood. Our aim was to define the efficacy of IL-27 in acute severe colitis and characterize novel IL-27-driven mechanisms of immunosuppression in the colonic mucosa. METHODS: We assessed oral delivery of Lactococcus lactis expressing an IL-27 hyperkine on the innate immune response in vivo in a genetically intact, noninfective, acute murine colitis model induced by intrarectal instillation of 2,4,6-trinitrobenzenesulfonic acid in SJL/J mice. RESULTS: IL-27 attenuates acute severe colitis through the reduction of colonic mucosal neutrophil infiltrate associated with a decreased CXC chemokine gradient. This suppression was T cell independent and IL-10 dependent, initially featuring enhanced mucosal IL-10. IL-27 was associated with a reduction in colonic proinflammatory cytokines and induced a multifocal, strong, positive nuclear expression of phosphorylated STAT-1 in mucosal epithelial cells. CONCLUSION: We have defined novel mechanisms of IL-27 immunosuppression toward colonic innate immune responses in vivo. Mucosal delivery of IL-27 has translational potential as a novel therapeutic for inflammatory bowel disease, and it is a future mucosal directed rescue therapy in acute severe inflammatory bowel disease. PMID- 29019859 TI - Outcomes after Phalloplasty: Do Transgender Patients and Multiple Urethral Procedures Carry a Higher Rate of Complication? AB - BACKGROUND: Phalloplasty is associated with improved quality-of-life in those with penile defects, and in female-to-male transgender (transmale) patients seeking gender-confirming surgery. However, aggregate complication and outcome data are sparse. This study compares phalloplasty outcomes between transmale and cismale patients and between those with primary versus staged urethroplasty. METHODS: A comprehensive literature search of PubMed, MEDLINE, and Google Scholar databases was conducted for studies relating to phalloplasty. Data on techniques, complications, outcomes, and patient demographics were collected. Analysis using the random-effects model with subgroup analyses was performed. RESULTS: A total of 50 studies (1351 patients) were included: 19 studies (869 patients) for transmale patients and 31 studies (482 patients) for cismale patients. The urethral complication rate in the transmale group was 39.4 percent (95 percent CI, 30.6 to 48.9 percent; p = 0.028) compared to 24.8 percent (95 percent CI, 16.5 to 35.4 percent; p < 0.001) in the cismale group. The overall flap complication rates for transmale and cismale patients were 10.8 percent (95 percent CI, 7.0 to 16.2 percent; p < 0.001) and 8.1 percent (95 percent CI, 5.5 to 11.7 percent; p < 0.001), respectively. Twenty-three studies (723 patients) used primary urethroplasty and 13 studies (210 patients) performed staged urethroplasty procedures. Flap complication rates of primary and staged urethroplasty were 8.6 percent (95 percent CI, 5.3 to 13.8 percent; p < 0.001) and 16.7 percent (95 percent CI, 10.7 to 24.9 percent; p < 0.001), respectively. Primary urethroplasty had superior outcomes of voiding while standing, sexual function, and patient satisfaction compared with staged urethroplasty. CONCLUSIONS: Cismale patients undergoing phalloplasty had lower urethral and flap complication rates compared with transmale patients. Staged urethroplasty had more flap complications, and worse outcomes and patient satisfaction compared with primary urethroplasty. PMID- 29019858 TI - Epicutaneous Tolerance Induction to a Bystander Antigen Abrogates Colitis and Ileitis in Mice. AB - BACKGROUND: Although inflammatory bowel disease (IBD) is a failure in maintaining tolerance to the intestinal microbiota, few studies have investigated the use of immunologic tolerance as a treatment approach for IBD. We hypothesized that induction of immune tolerance at a distal site could suppress intestinal inflammation through a process of bystander regulation. METHODS: Epicutaneous tolerance was induced by topical application of ovalbumin (OVA) using a Viaskin patch for 48 hours. In some experiments, a single feed of ovalbumin was used to drive epicutaneous tolerance-induced regulatory T cells (Tregs) to the intestine. The mechanism of tolerance induction was tested using neutralizing antibodies against TGF-beta, IL-10, and Treg depletion using Foxp3-DTR mice. The capacity of skin-draining Tregs, or epicutaneous tolerance, to prevent or treat experimental IBD was tested using T-cell transfer colitis, dextran sodium sulfate (DSS) colitis, and ileitis in SAMP-YITFc mice. Weight loss, colonic inflammatory cytokines and histology were assessed. RESULTS: Epicutaneous exposure to ovalbumin induced systemic immune tolerance by a TGF-beta-dependent, but IL-10 and iFoxp3 Treg-independent mechanism. Skin draining Tregs suppressed the development of colitis. Epicutaneous tolerance to a model antigen prevented intestinal inflammation in the dextran sodium sulfate and SAMP-YITFc models and importantly could halt disease in mice already experiencing weight loss in the T cell transfer model of colitis. This was accompanied by a significant accumulation of LAP and Foxp3 Tregs in the colon. CONCLUSIONS: This is the first demonstration that epicutaneous tolerance to a model antigen can lead to bystander suppression of inflammation and prevention of disease progression in preclinical models of IBD. PMID- 29019860 TI - The Addition of Platelet-Rich Plasma to Facial Lipofilling: A Double-Blind, Placebo-Controlled, Randomized Trial. AB - BACKGROUND: Lipofilling is a treatment modality to restore tissue volume, but it may also rejuvenate the aging skin. Platelet-rich plasma has been reported to augment the efficacy of lipofilling, both on graft take and rejuvenation, by altering the adipose-derived stem cells. The authors hypothesized that addition of platelet-rich plasma would increase the rejuvenating effect and shorten recovery time. METHODS: The study conducted was a single-center, double-blind, placebo-controlled, randomized trial (2012 to 2015). In total, a well-defined cohort of 32 healthy female patients enrolled in the study, with 25 completing the follow-up. All patients underwent aesthetic facial lipofilling with either saline or platelet-rich plasma added. Outcome was determined by changes in skin elasticity, volumetric changes of the nasolabial fold, recovery time, and patient satisfaction during follow-up (1 year). RESULTS: Platelet-rich plasma did not improve the outcome of facial lipofilling when looking at skin elasticity improvement, graft volume maintenance in the nasolabial fold. Reversal of the correlation between age and elasticity, however, might suggest a small effect size, and thus might not be significant with our small study population. CONCLUSIONS: This randomized, double-blind, placebo-controlled study clearly has shown that platelet-rich plasma significantly reduces postoperative recovery time but does not improve patient outcome when looking at skin elasticity, improvement of the nasolabial fold, or patient satisfaction. The reversal of the correlation between age and elasticity might indicate some effect on skin but requires more power in future studies. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, II. PMID- 29019861 TI - The Lateral Thigh Perforator Flap for Autologous Breast Reconstruction: A Prospective Analysis of 138 Flaps. AB - BACKGROUND: The septocutaneous tensor fasciae latae or lateral thigh perforator flap was previously introduced by the authors' group as an alternative flap for autologous breast reconstruction when the abdomen is not suitable as a donor site. The authors analyzed their experience with the lateral thigh perforator flap and present the surgical refinements that were introduced. METHODS: A prospective study was conducted of all lateral thigh perforator flap breast reconstructions performed since September of 2012. Patient demographics, operative details, complications, and flap reexplorations were recorded. Preoperative imaging with magnetic resonance angiography was performed in all patients. Surgical refinements introduced during this study included limitation of the flap width and the use of quilting sutures at the donor site. RESULTS: A total of 138 lateral thigh perforator flap breast reconstructions were performed in 86 consecutive patients. Median operative times were 277 minutes (range, 196 to 561 minutes) for unilateral procedures and 451 minutes (range, 335 to 710 minutes) for bilateral. Median flap weight was 348 g (range, 175 to 814 g). Two total flap losses (1.4 percent) were recorded, and 11 flaps (8.0 percent) required reexploration, which resulted in viable flaps. The incidence of donor site complications was reduced significantly after the surgical refinements were introduced. Wound problems decreased from 40.0 percent to 6.3 percent, seroma decreased from 25.0 percent to 9.5 percent, and infection decreased from 27.5 percent to 9.5 percent. CONCLUSIONS: The lateral thigh perforator flap is an excellent option for autologous breast reconstruction, with minimal recipient site complications. The surgical refinements resulted in a significant reduction of donor-site complications. Therefore, the lateral thigh perforator flap is currently the authors' second choice after the deep inferior epigastric artery perforator flap. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV. PMID- 29019863 TI - Bony/Cartilaginous Mismatch: A Radiologic Investigation into the Cause of Tension Nose Deformity. AB - BACKGROUND: Tension nose deformity is believed to be caused by an "oversized" septal quadrangular cartilage. Prior studies have shown that quadrangular cartilage size is relatively consistent in populations. The authors hypothesize that the tension nose deformity is actually caused by an external extrusion of a normal sized septal cartilage from an undersized bony septal encasement. METHODS: A retrospective case-control study of sagittal computed tomographic scans was conducted, measuring the perimeter and surface area of the quadrangular cartilage and bony septal aperture in tension nose cases and controls. Statistical analysis was performed. RESULTS: Of 23 patients enrolled in the study, 12 patients were sorted into the tension nose group, and 11 patients were considered controls. Both groups had similar perimeter and surface area of their quadrangular cartilage, without statistical difference between the two groups. However, the tension nose group had a statistically significant reduction in bony septal aperture perimeter compared with controls (p < 0.01) and a larger externally extruded septum compared with their internal septal size. They also had a substantially higher rate of septal deviation than controls. CONCLUSIONS: The results of this study suggest that a mismatch between a small bony septal aperture and a normal sized septal quadrangular cartilage may be responsible for caudal, upper lip, and dorsal fullness seen with the tension nose deformity caused by external extrusion of cartilage. Septal deviation may co-occur as a buckling phenomenon in a limited bony space. Surgical strategies to match the entire quadrangular cartilage size to the bony framework are suggested. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, III. PMID- 29019862 TI - Complications and Patient-Reported Outcomes after Abdominally Based Breast Reconstruction: Results of the Mastectomy Reconstruction Outcomes Consortium Study. AB - BACKGROUND: Abdominal flap reconstruction is the most popular form of autologous breast reconstruction. The current study compared complications and patient reported outcomes after pedicled transverse rectus abdominis myocutaneous (TRAM), free TRAM, deep inferior epigastric perforator (DIEP), and superficial inferior epigastric artery (SIEA) flaps. METHODS: Patients undergoing abdominally based breast reconstruction at 11 centers were prospectively evaluated for abdominal donor-site and breast complications. Patient-reported outcomes were measured by the BREAST-Q and Patient-Reported Outcomes Measurement Information System surveys. Mixed-effects regression models were used to assess the effects of procedure type on outcomes. RESULTS: Seven hundred twenty patients had 1-year follow-up and 587 had 2-year follow-up. Two years after reconstruction, SIEA compared with DIEP flaps were associated with a higher rate of donor-site complications (OR, 2.7; p = 0.001); however, SIEA flaps were associated with higher BREAST-Q abdominal physical well-being scores compared with DIEP flaps at 1 year (mean difference, 4.72, on a scale from 0 to 100; p = 0.053). This difference was not significant at 2 years. Abdominal physical well-being scores at 2 years postoperatively were lower in the pedicled TRAM flap group by 7.2 points (p = 0.006) compared with DIEP flaps and by 7.8 points (p = 0.03) compared with SIEA flaps, and in the free TRAM flap group, scores were lower by 4.9 points (p = 0.04) compared with DIEP flaps. Bilateral reconstruction had significantly lower abdominal physical well-being scores compared with unilateral reconstruction. CONCLUSIONS: Although all abdominally based flaps are viable breast reconstruction options, DIEP and SIEA flaps are associated with higher abdominal physical well-being than pedicled and free TRAM flaps. Although SIEA flaps offer the advantage of not violating the fascia, higher rates of donor-site complications may diminish patient satisfaction. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, II. PMID- 29019866 TI - Haemostatic balance in patients with end-stage cirrhosis: low protein C is the predominant coagulant protein deficiency. PMID- 29019865 TI - How diet can impact gut microbiota to promote or endanger health. AB - PURPOSE OF REVIEW: Disturbances of the intestinal microbiota have been increasingly implicated in driving various diseases associated with a broad range of chronic inflammatory state. Such diseases have increased in incidence since the mid-20th century, and have roughly correlated with societal changes in food production during this period. RECENT FINDINGS: Considering how changes in diet may have impacted gut microbiota and exploring whether targeted modulations of diet might be a means of optimizing microbiota composition to promote health. SUMMARY: Recent literature demonstrates that modulation of diet has potential to both beneficially and detrimentally impact microbiota composition and how it interacts with its host. Herein, we discuss recent studies by ourselves and others that demonstrate the potential for changes in diet to have profound impacts on the gut microbiota in ways that can have beneficial or detrimental effects on host health. PMID- 29019867 TI - The Effects Of Various Weighted Implements On Baseball Swing Kinematics In Collegiate Baseball Players. AB - The purpose of this study was to investigate the effects of different warm-up (WU) devices on bat swing parameters including maximal resultant velocity (MRV), resultant velocity at ball contact (RVBC), time difference between MRV and RVBC, bat angle at MRV, bat angle at RVBC, and perceptual differences (PD) of each WU implement utilized by National Collegiate Athletic Association (NCAA) Division-I baseball players. Fifteen varsity baseball players completed one experimental session during fall training. Retro-reflective markers were placed on the bat and tee to measure basic bat kinematics during the swing. Participants completed a general calisthenics WU before being counter-balanced into one of four WU conditions: standard bat (SB) (33in/30oz), fungo (FG) (10.6oz), weighted gloves with SB (WG) (55.6oz) and donut with SB (DN) (55.6oz). Each participant was asked to perform their normal on deck routine over a two-minute period, finishing with 5 practice swings with the designated condition. After completion of the WU, a one-minute rest period (simulating normal game conditions) was given to allow each participant to get set to perform five maximal swings with a SB. Five, 1x4 (group x condition) repeated measures analysis of variance examined the aforementioned variables. There were no significant differences in MRV, RVBC, time difference between MRV and RVBC, and bat angle at MRV and RVBC between all WU conditions. If presented with the current options, athletes should choose the WU implement with which they are most comfortable using prior to an at bat situatiossn. PMID- 29019868 TI - Vulvar Myxoid Liposarcoma, an Extremely Rare Diagnosis: A Case Report and Review of Literature. AB - Malignant lipomatous tumors of the vulva are an extremely rare entity. We report the case of a 53-year-old patient with a nodule on her right labium majus whose histological and immunohistochemical profile (S100 and p16) confirmed a diagnosis of vulvar myxoid liposarcoma. PMID- 29019869 TI - The Analysis of Cell Cycle-related Proteins in Ovarian Clear Cell Carcinoma Versus High-grade Serous Carcinoma. AB - In Japan, the frequency of ovarian clear cell carcinoma (CCC) is twice as high as that in the United States and Europe. Often, patient prognosis with CCC is poor because of chemoresistance. Here, we focus on the cell cycle, which is one of the mechanisms of chemoresistance. To detect the informative markers and improve the strategy of chemotherapy for CCC, we performed immunohistochemical staining of cell cycle-related proteins in ovarian malignant tumors. We detected that each of the 29 samples of CCC and high-grade serous carcinoma (HGSC) were necessary to reveal the significant differences in immunostaining and prognosis. We performed the immunostaining analysis using the antibodies of cell cycle-related proteins such as Ki-67, Cdt1, MCM7, and geminin. The positive rate of Cdt1 in the CCC group was significantly higher than that in the HGSC group (P<0.0001). However, the positive rate of geminin in the HGSC group was significantly higher than that in the CCC group (P<0.0001). The overall survival of CCC patients with high labeling index of Cdt1 was significantly worse than that of CCC patients with low labeling index of Cdt1 (P=0.004). The study results suggested that the cancer cells of CCC and HGSC exist in the G1 phase and S, G2, and M phases, respectively. The differences in cell cycle of CCC might be one of the reasons for chemotherapy resistance. Further investigations are necessary to reveal the usefulness of Cdt1 as a biomarker in CCC. PMID- 29019870 TI - Neuroendocrine Tumors of the Fallopian Tube: Report of a Case Series and Review of the Literature. AB - Primary neuroendocrine tumors of the fallopian tube are extremely rare with a few reported cases of high-grade neuroendocrine carcinoma and a single report of a carcinoid tumor arising in a teratoma. We report 4 cases of probable primary neuroendocrine tumors of the fallopian tube (2 carcinoid tumors/low-grade neuroendocrine tumors and 2 high-grade neuroendocrine carcinomas) in patients aged 49 to 71. These represent the first reported cases of primary tubal carcinoid tumor unassociated with a teratoma. We review the published literature regarding primary neuroendocrine tumors of the fallopian tube and speculate on the possible histogenesis of these neoplasms. PMID- 29019871 TI - Despite Diagnostic Morphology, Many Mixed Endometrial Carcinomas Show Unexpected Immunohistochemical Staining Patterns. AB - Historically, endometrial carcinomas have been classified primarily according to their histology. However, the use of immunohistochemistry has become commonplace in their evaluation, particularly in diagnostically challenging cases. Our objective was to evaluate mixed endometrial carcinomas using a well-established panel of biomarkers to assess the consistency and utility of these stains in clinical diagnosis. Eighteen cases comprised of various combinations of classical serous (SC), endometrioid (EC), and clear cell (CC) morphologies were identified and subjected to a panel of immunohistochemical markers including p53, p16, Ki67, estrogen receptor, progesterone receptor, and Napsin A. Intensity and extent of staining were evaluated on 4-tiered and 5-tiered scales, respectively. The typical immunostaining pattern expected for the individual tumor components was seen in only 3 cases, while in 15 cases an unexpected pattern was observed with at least one immunomarker. By tumor type, the most common unexpected finding in EC/SC carcinoma cases was diffuse positivity for p16 and/or estrogen receptor/progesterone receptor in both components, while in SC/CC, diffuse positivity for p53 in both components was most frequently seen, and in SC/CC/EC, Napsin A negativity was most commonly observed. Despite displaying diagnostic morphology, components of many mixed endometrial carcinomas may not exhibit expected immunohistochemical features. This may be due to the fact that these carcinomas arise from a single clone with subsequent divergence, resulting in a tumor with both mixed histologic and genetic features. It is important to note that these tumors may not demonstrate the immunohistochemical prototype of their constituents and should be approached accordingly from a diagnostic perspective. PMID- 29019873 TI - Reconstruction left atrium and isolation pulmonary veins of paroxysmal atrial fibrillation using single contact force catheter with zero x-ray exposure: A CONSORT Study. AB - BACKGROUND: Conventional ablation of paroxysmal atrial fibrillation (PAF) is associated with radiation risks for patients and laboratory staff. Three dimensional (3D) mapping system capable of showing contact force (CF) and direction of catheter tip may compensate for nonfluoroscopic safety issues. OBJECTIVE: The aim of this study was to investigate the feasibility of zero x-ray exposure during reconstruction left atrium (LA) and ablation. METHODS: Single, CF catheter, and 3D mapping system were used to reconstruct LA and isolate pulmonary veins (PV) in all patients. The patients were randomly divided into 2 groups after LA angiography. In group 1, reconstruction LA and isolation PV was performed with the help of 3D system (without x-ray), whereas in group 2, x-ray and 3D system were utilized to reconstruct LA and ablate PV antrum. After ablation, Lasso catheter was used to confirm the PV isolation. All patients were followed up to 12 months. RESULTS: A total of 342 PAF patients were continuously enrolled. The basic clinical characteristics between the 2 groups had no significant difference. Parameters related to the procedure, average procedure time, ablation procedure time, average contact force (CF) applied, the percentage of time within CF settings, and average power applied during radiofrequency application showed no significant difference between the 2 groups. In group 1, the average fluoroscopy time before LA reconstruction was similar to that in group 2 (2.8 +/- 0.4 vs. 2.4 +/- 0.6 minutes, P = .75). The average fluoroscopy time during ablation was significantly lower than that in group 2 (0 vs. 7.6 +/- 1.3 minutes, P < .001). The total x-ray exposure dose of the procedure in group 1 was significantly lower than that in group 2 (19.6 +/- 9.4 vs. 128.7 +/- 62.5 mGy, respectively, P < .001). Kaplan-Meier analysis indicated that there were no statistical differences in the probability of freedom from atrial arrhythmia (AF/AFL/AT) recurrence at 12 months between group 1 and group 2 (P = .152). The success rate after a single ablation procedure and without drugs (Class I/III AAD) at 12 months was not significantly different between the 2 groups (67.6%, 95% confidence interval [CI]: 62%-79.5% in group 1 and 68.9%, 95% CI: 63%-80.7% in group 2, P = .207). Procedural-related adverse events showed no significant different incidence between group 1 and group 2. A multivariate logistic regression analysis of risk factors was performed to evaluate the effectiveness outcome, which demonstrated that the percentage of CF (within the investigator selected work ranges) during therapy was significantly associated with positive outcomes (odds ratio: 3.68; 95% CI: 1.65-10.6, P = .008), whereas the LA dimension was negatively associated with effectiveness outcomes (odds ratio: 0.72; 95% CI: 0.52-0.84, P = .016). CONCLUSIONS: Reconstruction LA and isolation PV ablation using single CF-assisted catheter without x-ray exposure was both safe and effective. CF was positively associated with effective outcomes and LA dimensions negatively with effective ones. PMID- 29019874 TI - Injury patterns among various age and gender groups of trauma patients in southern Iran: A cross-sectional study. AB - Administrative data from trauma referral centers are useful sources while studying epidemiologic aspects of injuries. We aimed to provide a hospital-based view of injuries in Shiraz considering victims' age and gender, using administrative data from trauma research center.A cross-sectional registry-based study of adult trauma patients (age >=15 years) sustaining injury through traffic accidents, violence, and unintentional incidents was conducted. Information was retrieved from 3 hospital administrative databases. Data on demographics, injury mechanisms, injured body regions, and injury descriptions; outcomes of hospitalization; and development of nosocomial infections were recorded. Injury Severity Score (ISS) was calculated by crosswalking from ICD-10 (International Classification of Diseases) injury diagnosis codes to AIS-98 (Abbreviated Injury Scale) severity codes. Patients were compared based on age groups and gender differences.A total of 47,295 trauma patients with a median age of 30 (interquartile range: 24-44 years) were studied, of whom 73.1% were male and the remaining 26.9% were female (M/F = 2.7:1.0). The most common injury mechanisms in the male group were car and motorcycle accidents whereas females were mostly victims of falls and pedestrian accidents (P < .01). As age increased, a shift from transportation-related to unintentionally caused injuries occurred. Overall, young men had their most severe injuries on head, whereas elderly women suffered more severe extremity injuries. Injury severity was similar between men and women; however, elderly had a significantly higher ISS. Although incidence of nosocomial infections was independent of victims' age and gender, elderly men had a significantly higher mortality rate.Based on administrative data from our trauma center, male gender and age >65 years are associated with increased risk of injury incidence, prolonged hospitalizations, and in-hospital death following trauma. Development of a regional trauma surveillance system may provide further opportunities for studying injuries and evaluating preventive actions. PMID- 29019875 TI - Anterograde injection of low-dose urokinase salvages free anterolateral thigh flap: A case report of safe and effective treatment. AB - RATIONALE: A 54-year-old Taiwanese male came to our hospital presented with right retromolar mucoepidermoid carcinoma. Composite resection and right modified radical neck dissection were performed. We then use free anteral lateral thigh flap to reconstruct the defect. However, venous congestion was found 32 h after the surgery. PATIENT CONCERNS: The main concerns of the patient is complete salvage of the free flap, and avoiding the secondary free flap harvesting and reconstruction surgeries. DIAGNOSES: Right retromolar mucoepidermoid carcinoma. INTERVENTIONS: We report the case of a patient with an anterolateral thigh flap with venous perianastomosis thrombosis and intraflap microvascular thrombosis successfully salvaged using anterograde intra-arterial injection of low-dose urokinase (60,000 U), without administering intravenous anticoagulation heparin during the postoperative period. OUTCOMES: The flap was completely salvaged 3 days after treatment. No other flap-associated or bleeding complications were noted. The intra-oral wounds around the flap completely healed without any post ischemic complications. LESSONS SUBSECTIONS: Although the ideal urokinase doses and delivery procedures for free flap salvage have not been developed thus far, our method maximizes the urokinase gradient in the flap, minimizes the total dose required for flap salvage, and ensures no systemic spread. Thus, compared with other thrombolytic agents, urokinase may be more effective and safe for free flap salvage. With more experience, a standardized dosage and procedure can be developed. PMID- 29019876 TI - Unique circumferential peripheral keratitis in relapsing polychondritis: A case report. AB - RATIONALE: Relapsing polychondritis (RP) is a rare collagen disease characterized by inflammation and destruction of cartilage throughout the body. The paper details the clinical course of a case of RP with unique circumferential peripheral keratitis. PATIENT CONCERNS: A 54-year-old Japanese woman was referred to the hospital presenting with auricular and ocular pain. DIAGNOSES: Based on the auricle biopsy results and the three presenting symptoms (bilateral auricular chondritis, inflammatory arthritis and ocular inflammation), her condition was diagnosed as RP. INTERVENTIONS: The three presenting symptoms gradually improved with prednisolone (PSL), methylprednisolone and cyclophosphamide combination therapy, followed by PSL, methotrexate and infliximab combination therapy. However, one month after the initial visit, despite ongoing treatment, a unique circumferential peripheral keratitis suddenly occurred, in which the corneal infiltration gradually clumped together and shrank at the peripheral area. The eye and ear pain showed exacerbations and remissions on reducing the dosage of steroid drugs. The general condition was improved on altering systemic therapy to PSL, methotrexate and tocilizumab. OUTCOMES: Keratitis gradually disappeared within 10 months of the initial visit. LESSONS: This is the first report of a case of RP causing unique circumferential peripheral keratitis. This keratitis occurred despite use of focal and systemic steroids and showed improvement with general recovery. This may indicate that stabilization of general condition is important for recovery from keratitis in RP. PMID- 29019877 TI - A spontaneous hematoma arising within an intrapancreatic accessory spleen: A case report and literature review. AB - RATIONAL: Hematoma arising within an intrapancreatic accessory spleen (IPAS) is an extremely rare pathological entity. PATIENT CONCERN: We present the case of a 39-year-old man with acute abdominal pain. DIAGNOSES: The patient was initially diagnosed as pancreatic cystic neoplasm according to CT and MRI imaging. INTERVENTIONS: Distal pancreatectomy was conducted because of the possibility of malignancy. OUTCOMES: Surgical resection showed that the lesion was a hematoma in an IPAS. LESSONS: Our case indicated that the differential diagnosis of hematoma in IPAS should be born in mind for cases with cystic neoplasm in tail of pancreas and an epidermoid cyst arising within an intrapancreatic accessory spleen (ECIAS). PMID- 29019878 TI - A comparison of anterior cervical discectomy and fusion combined with cervical disc arthroplasty and cervical disc arthroplasty for the treatment of skip-level cervical degenerative disc disease: A retrospective study. AB - Anterior cervical discectomy and fusion (ACDF) has been widely performed for the treatment of multilevel cervical degenerative disc disease (CDDD). In recent decades, cervical disc arthroplasty (CDA) and hybrid surgery (HS) have been developed to overcome the shortcomings of ACDF. Controversy still remains with regard to the optimal surgical procedure for skip-level CDDD.A total of 55 patients who received surgical treatment for skip-level CDDD in our department were reviewed. The patients were divided into the HS group (n = 29) and the CDA group (n = 26). The collected data included Japanese Orthopedic Association (JOA), Neck Disability Index (NDI), and Visual Analog Scale (VAS) scores, and cervical lordosis (CL), range of motion (ROM), and intervertebral disc height (IDH). Radiological changes at the intermediate segment (IS) were also collected. All data were collected preoperatively and at routine postoperative intervals of 1 week and 3, 6, and 12 months and at the last follow-up period.Compared with preoperative values, mean JOA, NDI, and VAS scores significantly improved after surgery in both the HS and CDA groups (P < .05). However, there were no significant differences between the groups (P > .05). The HS group had better CL recovery than the CDA group after surgery (P < .05). There was no significant difference in the ROM of C2-C7 between the 2 groups (P > .05). A significant difference in the ROM of the IS was found at the last follow-up between the 2 groups (P < .05). At the last-follow-up, 4 discs (14.29%) in the CDA group and 6 discs (19.36%) in the HS group had adjacent segment degeneration (ASD) without symptoms.Both HS and CDA might be considered safe and effective surgical strategies for the treatment of skip-level CDDD. Although the clinical outcomes were similar in the 2 groups, CDA altered the ROM of the IS to a lesser degree. PMID- 29019879 TI - Percutaneous coronary intervention versus cardiac bypass surgery for left main coronary artery disease: A trial sequential analysis. AB - BACKGROUND: Several updated meta-analyses comparing percutaneous coronary intervention (PCI) with coronary artery bypass grafting (CABG) for left main coronary artery disease (LM CAD) have been published recently. However, the risk of false-positive results could be high in conventional updated meta-analyses due to repetitive testing of accumulating data. Therefore, we compared these treatment approaches via trial sequential analysis (TSA). METHODS: The MEDLINE, Embase, and Cochrane Central Register of Controlled Trials databases were searched for published randomized controlled trials (RCTs) or subgroups of RCTs comparing PCI and CABG in patients with LM CAD. The primary outcome was major cardiac and cerebrovascular adverse events (MACCE). TSA was used to confirm the conclusions derived from conventional meta-analysis. RESULTS: Six RCTs with 4700 patients were included. PCI was associated with a greater risk of MACCE compared with CABG (pooled relative risk [RR] 1.21, 95% confidence interval [CI]: 1.05 1.40, P = .008). In addition, PCI resulted in a significantly higher risk of revascularization than CABG (pooled RR 1.61, 95% CI: 1.33-1.95, P < .0001). TSA provided firm evidence for the reduction of MACCE and revascularization with CABG compared with PCI (cumulative z-curve crossed the monitoring boundary). In the subgroup analysis, CABG was better than PCI in patients with SYNTAX score >32 (pooled RR 1.41, 95% CI: 1.12-1.76, P = .003), which was confirmed by the TSA. There was no difference in patients with a SYNTAX score from 0 to 32. CONCLUSIONS: In patients with LM CAD, CABG may be better than PCI for reducing MACCE due to a reduced risk of revascularization. CABG remains the first choice for LM CAD patients with high anatomic complexity, while PCI could be an alternative for those with low-to-moderate anatomic complexity. PMID- 29019880 TI - The effect of water immersion delivery on the strength of pelvic floor muscle and pelvic floor disorders during postpartum period: An experimental study. AB - BACKGROUND: Water immersion delivery is a non-pharmacological approach to ease labor pain. This paper aims to investigate the effect of water immersion delivery on increasing strength of pelvic floor muscle (PFM) and relieving pelvic floor disorders (PFDs) during postpartum period. METHODS: A total of 2749 vaginal delivery primiparas in postpartum 6-8 weeks were selected as research objects. Based on the modes of delivery, 600 patients were assigned into water immersion delivery group, 2149 were assigned into conventional delivery group. The scales of PFM strength and pelvic organ prolapsed (POP) were determined by specially trained personnel using digital palpation, and the symptoms of stress urinary incontinence (SUI) were investigated by questionnaire survey. The weak PFM strength was improved by doing Kegel exercise at home for 6-8 weeks. RESULTS: We found that 1The rate of episiotomy in water immersion delivery group was 77.50% (465/600), which was lower than that in conventional delivery group (84.69%, 1820/2149) (P < .01); The primiparas without having an episiotomy have higher PFM strength than those having an episiotomy for both groups (P < .01). 2There was a negative correlation between the scale of PFM strength and SUI or POP, wherein the r-values were -0.135 and -0.435, respectively (P < .01). 3The rate of SUI was 6.50% (39/600) in water immersion delivery group and 6.89% (148/2149) in the conventional delivery group, wherein the intergroup difference was not significant (P > .05); 4The rates of vaginal wall prolapsed and uterus prolapsed were 29.83% (179/600) and 2.83% (17/600) in water immersion delivery group and 30.95% (665/2149) and 4.37% (94/2149) in the conventional delivery group, wherein the intergroup difference was not significant (P > .05). 5After Kegel exercise, the strength of PFM was promoted (P < .01). CONCLUSION: Water immersion delivery has been proved to a beneficial alternative method for conventional delivery method. This delivery mode is associated with fewer episiotomy rate, and avoiding episiotomy is beneficial for maintaining PFM strength of women in postpartum 6-8 weeks. The strength of PFM during postpartum period can be improved by doing Kegel exercise at home. PMID- 29019881 TI - Assessment of left ventricular performance in heart transplant recipients by three-dimensional speckle tracking imaging. AB - To calculate left ventricular (LV) global performance values in heart transplant (HT) recipients by three-dimensional speckle tracking imaging (3D-STI) and to observe the changes in LV global performance over time after HT and investigate the correlated factors.The 30 HT patients were divided into 2 groups according to postoperative time: 1 month postoperatively (HT-1) group and 6 months postoperatively (HT-2) group. Thirty healthy subjects were enrolled as control group. 3D-STI was performed to assess LV torsion, LV systolic dyssynchrony index (SDI), and LV global strain (GS). Global performance index (GPI) was calculated, and correlations factors with GPI were studied.Heart rate (HR), left atrium (LA), interventricular septum thickness (IVST), left ventricular posterior wall thickness (LVPWT), and left ventricular mass (LVM) in both HT groups were higher than those in the control group. Compared with the control group, SDI was significantly higher in both HT groups, and SDI of the HT-1 group was much higher than that of HT-2 group. Compared with the control group, apical rotation (RoA), twist and torsion in the both HT groups decreased significantly. There were no significant differences in these values between the 2 HT groups; Basal rotation (RoB) showed no significantly difference among the 3 groups. GS in the both HT groups decreased significantly compared with the control group, and there were no significant differences in these values between the 2 HT groups. GPI of the both HT groups was significantly lower than that of the control group; however, GPI of HT-2 group was higher than that of HT-1 group. Multivariate stepwise regression analysis identified global left ventricular longitudinal peak systolic strain (GLS), the time length since surgery, left ventricular mass (LVM), and RoA as predictors of LV GPI. GLS was the most influential to GPI.The values of LV rotation, twist and SDI can be used to assess the LV systolic function and dyssynchrony. The GPI value based on 3D-STI may accurately reflect LV performance changes over time after HT. The GPI value has potential applications in clinical practice. GLS, the time length since surgery, LVM and RoA values can be the predictors of LV global performance, and as long as the left ventricular ejection fraction (LVEF) is preserved, the left ventricular global performance of HT recipients remains stable, and tends to improve over time after HT. PMID- 29019882 TI - Koebner phenomenon induced by failed revisional orthopedic surgery but remitted with bone union: A case report. AB - RATIONALE: Trauma or surgical incision might cause Koebner phenomenon (KP) in patients with cutaneous diseases, but seldom studies reported KP induced by repeated orthopedic surgery. PATIENT CONCERNS: The 22-year-old man did not have any prior histories of cutaneous diseases. Two months after the revision surgery for nonunion of the left femoral shaft fracture, KP was noted by psoriasis presented at the surgical scar, left thigh, scalp, and trunk. Phototherapy and topical treatments were prescribed but the effect was limited. DIAGNOSIS: KP induced by failed revisional orthopedic surgery. INTERVENTIONS: Because of implant failure, he underwent the second revision surgery, which was performed on the previous scar surrounded and covered by psoriatic plaques. OUTCOMES: After the second revision surgery successfully corrected the orthopedic problem, the psoriatic lesion remitted along with the bone union. LESSONS: In a patient having KP, to perform an operation on psoriatic lesion sites was safe and the surgical wound could heal well. The most important to treat KP induced by orthopedic surgery might be the underlying bone stability. PMID- 29019883 TI - Bone mineral density changes of lumbar spine and femur in osteoporotic patient treated with bisphosphonates and beta-hydroxy-beta-methylbutyrate (HMB): Case report. AB - RATIONALE: Currently available approaches to osteoporosis treatment include application of antiresorptive and anabolic agents influencing bone tissue metabolism. The aim of the study was to present bone mineral density (BMD) changes of lumbar spine in osteoporotic patient treated with bisphosphonates such as ibandronic acid and pamidronic acid, and beta-hydroxy-beta-methylbutyrate (HMB). PATIENT CONCERNS: BMD and volumetric BMD (vBMD) of lumbar spine were measured during the 6 year observation period with the use of dual-energy X-ray absorptiometry (DEXA) and quantitative computed tomography (QCT). DIAGNOSES: The described case report of osteoporotic patient with family history of severe osteoporosis has shown site-dependent response of bone tissue to antiosteoporotic treatment with bisphosphonates. INTERVENTIONS AND OUTCOMES: Twenty-five-month treatment with ibandronic acid improved proximal femur BMD with relatively poor effects on lumbar spine BMD. Over 15-month therapy with pamidronic acid was effective to improve lumbar spine BMD, while in the proximal femur the treatment was not effective. A total of 61-week long oral administration with calcium salt of HMB improved vBMD of lumbar spine in the trabecular and cortical bone compartments when monitored by QCT. Positive effects of nearly 2.5 year HMB treatment on BMD of lumbar spine and femur in the patient were also confirmed using DEXA method. LESSONS: The results obtained indicate that HMB may be applied for the effective treatment of osteoporosis in humans. Further studies on wider human population are recommended to evaluate mechanisms influencing bone tissue metabolism by HMB. PMID- 29019884 TI - Utility of osteosclerotic lesion biopsy in diagnosis of POEMS syndrome: A case report. AB - RATIONALE: We report a case of successful diagnosis of POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes) syndrome based on monoclonality that was confirmed by an osteosclerotic lesion biopsy in a patient without pathognomonic symptoms or monoclonal gammopathy, probably because of comorbidities, which included systemic lupus erythematosus, rheumatoid arthritis, and Sjogren syndrome. PATIENT CONCERNS: A 57-year-old woman presented with an approximately 2-year history of numbness in the toes that had gradually spread, along with muscle weakness in both arms and legs. She had been receiving immunosuppressant and corticosteroid therapy since being diagnosed with systemic lupus erythematosus and Sjogren syndrome at the age of 31 years and rheumatoid arthritis at the age of 44 years. Neurological examination revealed predominantly distal hypoesthesia and weakness in a typical stocking-and-glove pattern. Immunoelectrophoresis revealed elevated polyclonal immunoglobulin, which was attributed to her known underlying disease. DIAGNOSES: Biopsy of an osteosclerotic lesion confirmed proliferation of monoclonal plasma cells, leading to a diagnosis of POEMS syndrome. INTERVENTIONS AND OUTCOMES: Lenalidomide therapy was started after the diagnosis and the patient had a favorable outcome. LESSONS: Osteosclerotic lesion biopsy can be useful for diagnosis of POEMS syndrome in difficult cases. PMID- 29019885 TI - Two-incision laparoscopic appendectomy for a severe hemophilia A child patient with coagulation factor VII deficiency: Case report and review of literature. AB - RATIONALE: The main complication of patients with severe hemophilia is recurrent bleeding events that usually affected musculoskeletal contractures. And replacement therapy methods were continuously improved to minimize adverse impacts brought by those complications. However, only several cases reported about the appendectomy for hemophilia A. We report a case of acute appendicitis treated by two-incision laparoscopy in a boy with hemophilia A and coagulation factor VII deficiency for the first time. PATIENT CONCERNS: An 8y7m-old Chinese boy presented with half a day of right sided abdominal pain, fever, nausea, and vomiting. DIAGNOSES: He received a computed tomography (CT) scan which revealed an enlarged appendix, thickened wall and appendiceal fecalith, and had received a conservative anti-bacterial treatment for his acute appendicitis but failed. He was diagnosed with hemophilia A and coagulation factor VII deficiency. INTERVENTIONS: Two-incision laparoscopic appendectomy was made in success with a careful management of perioperative period. We monitored the clotting factor FVIII level and gave him a replacement therapy. OUTCOMES: The patient had an uneventful recovery. LESSONS: It is important to exclude intraabdominal or retroperitoneal hemorrhage in patients suffering from hemophilia and acute abdominal pain. Pre-operative evaluation of validity of the FVIII replacement therapy is another effective strategy to assess the safety and feasibility of applying an operation procedure. The two-incision laparoscopic appendectomy is an effective treatment for this kind of patients for its minimal trauma and fast recovery characteristics. Our report shows that laparoscopic appendectomy is feasible in a child suffering from hemophilia after adequate blood clotting factor replacement treatment. PMID- 29019886 TI - A hospital-to-home evaluation of an enhanced recovery protocol for elective pancreaticoduodenectomy in China: A cohort study. AB - Enhanced recovery after surgery (ERAS) programs have been shown to decrease postoperative complications and hospital stay in pancreaticoduodenectomy. However, no studies concerned recovery after discharge except readmission. This study evaluated an ERAS program for pancreaticoduodenectomy from hospital to home.A prospective ERAS cohort undergoing elective pancreaticoduodenectomy was compared with a retrospective control group in terms of postoperative complications and hospital stay, and home recovery after discharge. Propensity score matching was used to balance their baselines.Two groups of 31 patients with similar propensity scores were established. Postoperative morbidities were 18 of 31 and 26 of 31 in the ERAS and control groups, respectively (P = .06). Patients in the ERAS group suffered from fewer cardiovascular complications (3/31 vs 11/31; P = .04) and intestinal dysbacteriosis (4/31 vs 13/31; P = .04). Median postoperative hospital stay was shorter in the ERAS group (8 vs 16 days; P < .001). Although the 2 groups were similar in terms of sleep, defecation, vigor, performance status, and pain control in first month after discharge, patients in the ERAS group enjoyed better food intake recovery (18/31 vs 5/31 in first week, P = .002; 22/31 vs 9/31 in second week, P = .008; 23/31 vs 13/31 in fourth week, P = .01) and fewer weight loss (10/31 vs 19/31; P = .05). Multivariate analyses showed that both improvements were associated with no bowel preparation.ERAS implementation in selected patients undergoing pancreaticoduodenectomy could promise better outcomes, not only in the hospital but also at home in the short term. PMID- 29019887 TI - Factors predicting a home death among home palliative care recipients. AB - Awareness of factors affecting the place of death could improve communication between healthcare providers and patients and their families regarding patient preferences and the feasibility of dying in the preferred place.This study aimed to evaluate factors predicting home death among home palliative care recipients.This is a population-based study using a national representative sample retrieved from the National Health Insurance Research Database. Subjects receiving home palliative care, from 2010 to 2012, were analyzed to evaluate the association between a home death and various characteristics related to illness, individual, and health care utilization. A multiple-logistic regression model was used to assess the independent effect of various characteristics on the likelihood of a home death.The overall rate of a home death for home palliative care recipients was 43.6%. Age; gender; urbanization of the area where the patients lived; illness; the total number of home visits by all health care professionals; the number of home visits by nurses; utilization of nasogastric tube, endotracheal tube, or indwelling urinary catheter; the number of emergency department visits; and admission to intensive care unit in previous 1 year were not significantly associated with the risk of a home death. Physician home visits increased the likelihood of a home death. Compared with subjects without physician home visits (31.4%) those with 1 physician home visit (53.0%, adjusted odds ratio [AOR]: 3.23, 95% confidence interval [CI]: 1.93-5.42) and those with >=2 physician home visits (43.9%, AOR: 2.23, 95% CI: 1.06-4.70) had higher likelihood of a home death. Compared with subjects with hospitalization 0 to 6 times in previous 1 year, those with hospitalization >=7 times in previous 1 year (AOR: 0.57, 95% CI: 0.34-0.95) had lower likelihood of a home death.Among home palliative care recipients, physician home visits increased the likelihood of a home death. Hospitalizations >=7 times in previous 1 year decreased the likelihood of a home death. PMID- 29019888 TI - An upper cervical cord compression secondary to occult follicular thyroid carcinoma metastases successfully treated with multiple radioiodine therapies: A clinical case report. AB - RATIONALE: The spine is the most common site of bone metastases due to thyroid cancer; however, spinal cord compression as a complication of metastatic thyroid cancer is very rare. PATIENT CONCERNS: A 48-year-old female patient was presented to the Neurosurgical Department, complaining of progressive back neck pain with bilateral upper extremities numbness and weakness for 4 months. DIAGNOSIS: Imaging studies revealed osteolytic destruction in bodies and accessories of the second and third cervical vertebrae with a huge soft-tissue mass compressing spinal cord and causing swelling. After the neurosurgical decompression surgery, the pathological examination established a metastatic follicular carcinoma originating from the thyroid gland. INTERVENTIONS: Her cervical spinal metastases were hardly removed by surgery and the risks of external beam radiation therapy (EBRT) were very high. So she underwent a total thyroidectomy and received multiple radioiodine (RAI) and concomitant glucocorticoid therapies postoperatively. Radioiodine whole-body scan (WBS) showed multiple abnormal radioiodine uptakes. Then single-photon emission tomography/computed tomography (SPECT/CT) located these spinal metastases involving cervical, lumbar, and sacral vertebrae. OUTCOMES: After 5 times RAI therapy, her thyroglobulin obviously decreased, with the cervical lesion shrinkage and no spinal cord edema. LESSONS: RAI therapy and concomitant glucocorticoid therapy could be used for spinal metastases of FTC, even with spinal cord compression. PMID- 29019889 TI - High dose of nimustine as an add-on treatment for small cell lung cancer with intracranial metastasis: A case report and literature review. AB - RATIONALE: Small cell lung cancer (SCLC) characterized by high degree of malignancy and rapid tumor progression. Intracranial metastases often appear at the time of the initial diagnosis or treatment. Besides of radiotherapy, chemotherapy is supposed to have limited effect. PATIENT CONCERNS: A 66-year-old male had blurred vision and unsteady step with moderate headache, nausea, vomit. DIAGNOSES: The patient was diagnosed with SCLC with intracranial metastases. INTERVENTIONS: High dose of nimustine (ACNU) (300 mg/m) add to the regimen containing carboplatin and irinotecan. OUTCOMES: Although the patient suffered severe myelosuppression, the intracranial lesion almost disappeared and maintained half a year. LESSONS: ACNU at a dose of 200 mg/m might be tolerable in combination with other chemotherapeutic drugs for the treatment of SCLC with intracranial metastases besides radiotherapy. PMID- 29019890 TI - External fixation combined with delayed internal fixation in treatment of tibial plateau fractures with dislocation. AB - The aim of this study was to evaluate the clinical efficacy of external fixation, delayed open reduction, and internal fixation in treating tibial plateau fracture with dislocation.Clinical data of 34 patients diagnosed with tibial plateau fracture complicated with dislocation between January 2009 and May 2015 were retrospectively analyzed. Fifteen patients in group A underwent early calcaneus traction combined with open reduction and internal fixation and 19 in group B received early external fixation combined with delayed open reduction and internal fixation. Operation time, postoperative complication, bone healing time, knee joint range of motion, initial weight-bearing time, Rasmussen tibial plateau score, and knee function score (HSS) were statistically compared between 2 groups.The mean follow-up time was 18.6 months (range: 5-24 months). The mean operation time in group A was 96 minutes, significantly longer than 71 minutes in group B (P < .05). In group A, 5 cases had postoperative complications and 1 in group B (P < .05). The mean bone healing time in group A was 6.9 months (range: 5 9 months) and 6.0 months (range: 5-8 months) in group B (P > .05). In group A, initial weight-bearing time in group A was (14.0 +/- 3.6) weeks, significantly differing from (12.9 +/- 2.8) weeks in group B (P < 0.05). In group A, the mean knee joint range of motion was 122 degrees (range: 95 degrees -150 degrees ) and 135 degrees (range: 100 degrees -160 degrees ) in group B (P > 0.05). Rasmussen tibial plateau score in group A was slightly lower than that in group B (P > .05). The excellent rate of knee joint function in group A was 80% and 84.21% in group B (P > .05).External fixation combined with delayed open reduction and internal fixation is a safer and more efficacious therapy of tibial plateau fracture complicated with dislocation compared with early calcaneus traction and open reduction and internal fixation. PMID- 29019891 TI - Study protocol for a randomized controlled pilot-trial on the semiocclusive treatment of fingertip amputation injuries using a novel finger cap. AB - INTRODUCTION: Fingertip amputation injuries are common in all ages. Conservatively treated fingertips can regenerate skin and soft tissues to form a functionally and cosmetically excellent new fingertip. Little is known about this ability that, in humans, is confined to the fingertips. Even less is known about the role of the bacteria that regularly colonize these wounds without negative impact on regeneration and healing.As an alternative to surgery, self-adhesive film dressings are commonly used to establish a wet chamber around the injury. These dressings leak malodorous wound fluid eventually until the wound is dry. Having that into consideration, we have therefore developed a silicone finger cap that forms a mechanically protected, wet chamber around the injury for optimal regeneration conditions. It contains a puncturable reservoir for excess wound fluid, which can be thus routinely analyzed for diagnostic and research purposes.This study protocol explains the first randomized controlled trial (RCT) on the semiocclusive treatment of fingertip amputations in both children and adults comparing traditional film dressings with the novel silicone finger cap. Being the first RCT using 2 medical devices not yet certified for this indication, it will gather valuable information for the understanding of fingertip regeneration and the design of future definitive studies. METHODS AND ANALYSIS: By employing an innovative pseudo-cross-over-design with a dichotomous primary endpoint based on patients preference, this pilot study will gain statistically significant data with a very limited sample size. Our RCT will investigate acceptance, safety, effectiveness, and efficacy of this novel medical device while gathering information on the clinical course and outcome of conservatively treated fingertip injuries. A total of 22 patients older than 2 years will be randomly assigned to start the conservative treatment with either the traditional film-dressing or the novel finger cap. The treatment will be changed to the other alternative for another 2 weeks before the patient or the guardian is confronted with the decision of which method they would prefer for the rest of the treatment (if required). ETHICS AND DISSEMINATION: Ethical approval (EK 148042015) of the study protocol has been obtained from Institutional Review Board at the TU Dresden. The trial is registered at the European Database on Medical Devices (EUDAMED-No.: CIV-15-03-013246) and at ClinicalTrials.gov (NCT03089060). PMID- 29019892 TI - Bright sinus appearance on arterial spin labeling MR imaging aids to identify cerebral venous thrombosis. AB - Cerebral venous thrombosis is a potentially lethal disease. Early diagnosis is essential to improve its prognosis. However, its early diagnosis based on conventional imaging modalities remains a challenge in clinical settings. The purpose of this study was to evaluate whether bright sinus appearance on arterial spin-labeling perfusion-weighted image (ASL-PWI) could help identify cerebral venous thrombosis.ASL-PWI of 13 patients who were confirmed as cerebral venous thrombosis based on neurologic symptoms and computed tomography (CT) or magnetic resonance (MR) venography (with/without cerebral angiography) were retrospectively analyzed for the presence or absence of the following: bright signal in dural sinus termed "bright sinus appearance"; and hypoperfusion in brain parenchyma drained by thrombosed sinus. In addition, conventional MR findings, including susceptibility vessel sign, empty delta sign, and atypical distribution against arterial territory, were also analyzed.Bright sinus appearance on ASL-PWI was found in all (100%) 13 patients. In addition, 10 (77%) patients showed hypoperfusion in the brain parenchyma drained by thrombosed sinus on ASL-PWI. Susceptibility vessel sign and empty delta sign were revealed in 11 (85%) and 7 (54%) patients, respectively. Atypical distribution against arterial territory was seen in 5 (50%) of the 10 patients with parenchymal abnormality on conventional MR sequences. Therefore, the bright sinus appearance had higher sensitivities for identifying cerebral venous thrombosis than the susceptibility vessel sign, empty delta sign, and atypical distribution against arterial territory (with differences of 15%; P = .500, 46%; P = .031, and 50%; P = .031, respectively).Bright sinus appearance on ASL-PWI can provide important diagnostic clue for identifying cerebral venous thrombosis. Therefore, this technique may have the potential to be used as a noninvasive diagnostic tool to identify the cerebral venous thrombosis. PMID- 29019893 TI - Rescue therapeutic strategy combining ultra-protective mechanical ventilation with extracorporeal CO2 removal membrane in near-fatal asthma with severe pulmonary barotraumas: A case report. AB - RATIONALE: Mechanical ventilation of severe acute asthma is still considered a challenging issue, mainly because of the gas trapping phenomenon with the potential for life-threatening barotraumatic pulmonary complications. PATIENT CONCERNS: Herein, we describe 2 consecutive cases of near-fatal asthma for whom the recommended protective mechanical ventilation approach using low tidal volume of 6 mL/kg and small levels of PEEP was rapidly compromised by giant pneumomediastinum with extensive subcutaneousemphysema. DIAGNOSES: Near fatal asthma. INTERVENTION: A rescue therapeutic strategy combining extracorporeal CO2 removal membrane with ultra-protective extremely low tidal volume (3 mL/kg) ventilation was applied. OUTCOMES: Both patients survived hospital discharge. LESSONS: These 2 cases indicate that ECCO2R associated with ultra-protective ventilation could be an alternative to surgery in case of life-threatening barotrauma occurring under mechanical ventilation. PMID- 29019894 TI - Randomized controlled trial of late-course concurrent versus sequential chemoradiotherapy after mastectomy and axillary surgery in locally advanced breast cancer. AB - BACKGROUND: Concurrent chemoradiotherapy could increase the local control rate in patients with high recurrence risk after breast-conserving surgery, but the effect of concurrent chemoradiotherapy after mastectomy and axillary dissection is not clear. The aim of the study was to compare the effects of late-course concurrent chemoradiotherapy (CCRT) versus sequential therapy (SCRT) after mastectomy and axillary surgery in locally advanced breast cancer. METHODS: This was a randomized controlled trial of 155 patients with stage pT3-4p N1-3c M0 or pAnyT pN2-3c M0 breast cancer undergoing 5 fluorouracil+epirubicin+cyclophosphamide followed by docetaxel (FEC-D) chemotherapy after mastectomy and axillary dissection. Patients were randomized to the CCRT group (intensity-modulated radiation therapy was performed concurrently with docetaxel) or to the SCRT group (radiotherapy after chemotherapy). Recurrences, adverse reactions, and short-term effects were observed. RESULTS: All the patients completed the planned therapy. The median follow-up was 39 (range, 16-62) months. Compared with SCRT, the 3-year local regional recurrence-free survival (LRFS) in the CCRT group was improved (81.8% vs 92.3%, P = .046). There was no significant difference in 3-year disease-free survival (DFS) and overall survival (OS). In the pT3-4 pN1-3 cM0 subgroup, the 3 year local recurrence-free survival and DFS were significantly improved in the CCRT group (69.4% vs 88.2%, P = .036; and 41.7% vs 72.6%, P = .049, respectively). No significant difference was observed adverse reactions between the 2 groups. CONCLUSION: LRFS of patients with locally advanced invasive breast cancer after mastectomy and axillary surgery was better with CCRT than with SCRT and with similar profiles of adverse reactions. The DFS of patients staged pT3-4 pN1-3 cM0 was also improved. PMID- 29019895 TI - The prognostic value of PCNA expression in patients with osteosarcoma: A meta analysis of 16 studies. AB - BACKGROUND: Numerous studies have attempted to determine the prognostic role of proliferating cell nuclear antigen (PCNA) expression in patients with osteosarcoma with no consistent conclusion. We performed this meta-analysis to systematically elucidate the association in a more precise manner.The purpose of this meta-analysis is to determine the prognostic role of PCNA in patients with osteosarcoma. METHODS: A systematic search of relevant studies was performed in 6 electronic databases including PubMed, Embase, Web of Science, Wanfang database, China National Knowledge Internet (CNKI) database, and Chinese Biological Medical (CBM) Database (up to March 1, 2016) with the following keywords: (PCNA OR proliferating cell nuclear antigen) AND (osteosarcoma OR osteogenic tumor). A manual search of references on relevant articles was also conducted by 2 investigators independently. We performed a comprehensive evaluation of the correlation between PCNA expression and overall survival (OS) or disease-free survival (DFS) by calculating relative ratios (RR) and their corresponding 95% confidence intervals (CI) using STATA software. A fixed- or random-effect model was chosen based on the between-study heterogeneity. RESULTS: In total, 16 studies with 691 osteosarcoma patients were included in this meta-analysis. PCNA overexpression was found in approximately 57.31% of the patients with osteosarcoma. The meta-analysis suggested that PCNA overexpression in osteosarcoma patients is associated with low OS, but not significantly with DFS (RR = 1.82, 95% CI 1.53-2.18, P = .000; RR = 1.15, 95% CI 0.91-1.44, P = 0.234). Sensitivity analysis for OS and DFS showed no significant difference and the pooled RRs were stable when the included studies were removed one by one. Similar results were also obtained for subgroup analysis based on different follow-ups and cutoffs to determine PCNA expression. CONCLUSION: The findings from this meta analysis indicate that PCNA overexpression is an effective biomarker for poor prognosis in patients with osteosarcoma for OS. Hence, more large-scale studies are still needed to further warrant this conclusion. PMID- 29019896 TI - The efficacy of retroperitoneal laparoscopic deroofing of simple renal cyst with perirenal fat tissue wadding technique: A retrospective study. AB - Treatment options for simple renal cyst (SRC) include open surgery, laparoscopy with decortication, or percutaneous aspiration with or without sclerotherapy. Though laparoscopic unroofing achieves better results than percutaneous sclerotherapy, the reported recurrence rate is still up to 19%. Thus, it is necessary to find methods to reduce the recurrence rate.To investigate whether the perirenal pedicled fat tissue wadding technique during retroperitoneal laproscopic deroofing (RLD) of SRC affects the incidence of recurrence.A retrospective analysis was carried out on clinical data of 254 patients with SRC treated by RLD in our hospital from 2008 to 2016. Among these patients,119 had a simple retroperitoneal deroofing (SRD) and 135 received a retroperitoneoscopic deroofing with wadding of the cyst using perirenal fat tissue (RDCW). The recurrence rate and variables, as well as perioperative complications, were compared. To further explore the potential variables influencing cyst recurrence rate, univariate and multivariate regression analyses were applied.A total of 251 patients were included in the analysis. The operation was successfully completed laparoscopically in all cases with no conversion to open surgery. No mortality or significant complication occurred in both groups. After a median follow-up of 38.67 months, we noted 41 recurrences. According to the univariate and multivariate regression analyses, patients managed with the wadding technique had superior recurrence-free survival (RFS), compared with patients in SRD group (log rank P = .03 and P = .04, respectively). Moreover, patients with single renal cyst had a lower recurrence rate, compared with patients with multiple renal cysts (log-rank P < .01). Regarding the operation time, blood loss, and hospital stay, no statistically significant difference was found between 2 groups (P values .13, .30, and .75, respectively). However, less postoperative drainage and shorter postoperative interval until tube removal (P = .04) were observed in RDCW group.The perirenal pedicled fat tissue wadding technique can decrease the cyst recurrence rate and RCDW represents an effective and safe treatment option in the management of renal cysts. PMID- 29019897 TI - Endocan expression is correlated with poor progression-free survival in patients with pancreatic neuroendocrine tumors. AB - Endocan expression has been reported to be associated with aggressive tumor progression and poor outcomes in various cancers, such as breast cancer, renal cell cancer, lung cancer, gastric cancer, and pituitary adenomas. However, the prognostic significance of endocan in neuroendocrine tumors remains unknown. Thus, the aim of this study was to determine the correlation between endocan expression in pancreatic neuroendocrine tumor (PNET) tissues and progression-free survival. This study included 73 patients with confirmed PNETs who were treated in a single tertiary center in north Taiwan between 1992 and 2015. Immunohistochemical endocan expression and microvessel density (MVD) were examined, and the relationships between these parameters and other clinicopathological characteristics were analyzed. The abovementioned patients were divided into groups according to their endocan expression levels (>=1% or <1%) and median MVDs. Negative endocan expression (P = .002) and a high MVD (P < .001) were significant and favorable prognostic factors for progression-free survival. However, positive endocan expression was significantly associated with a low MVD (P = .037) and tumor mitosis (Ki-67 index) (P = .028). Multivariate Cox regression analysis showed that positive endocan expression (hazard ratio: 4.778, P = .018) and lymph node involvement (hazard ratio: 5.121, P = .005) were independent prognostic factors for tumor recurrence.In conclusion, endocan expression was correlated with poor clinical outcomes in PNETs. Our data indicated that endocan expression may be a reliable marker for predicting tumor recurrence in patients with PNETs. PMID- 29019898 TI - An observational study of the relationship between meaningful use-based electronic health information exchange, interoperability, and medication reconciliation capabilities. AB - Stagnation in hospitals' adoption of data integration functionalities coupled with reduction in the number of operational health information exchanges could become a significant impediment to hospitals' adoption of 3 critical capabilities: electronic health information exchange, interoperability, and medication reconciliation, in which electronic systems are used to assist with resolving medication discrepancies and improving patient safety. Against this backdrop, we assessed the relationships between the 3 capabilities.We conducted an observational study applying partial least squares-structural equation modeling technique to 27 variables obtained from the 2013 American Hospital Association annual survey Information Technology (IT) supplement, which describes health IT capabilities.We included 1330 hospitals. In confirmatory factor analysis, out of the 27 variables, 15 achieved loading values greater than 0.548 at P < .001, as such were validated as the building blocks of the 3 capabilities. Subsequent path analysis showed a significant, positive, and cyclic relationship between the capabilities, in that decreases in the hospitals' adoption of one would lead to decreases in the adoption of the others.These results show that capability for high quality medication reconciliation may be impeded by lagging adoption of interoperability and health information exchange capabilities. Policies focused on improving one or more of these capabilities may have ancillary benefits. PMID- 29019899 TI - Effect of cerebral oxygen saturation on postoperative nausea and vomiting in female laparoscopic surgery patients. AB - BACKGROUND: The purpose of this study was to investigate effect of cerebral oxygen saturation (SCTO2) on postoperative nausea and vomiting (PONV) in female patients who underwent laparoscopic surgery. METHODS: This study included 90 female patients who underwent laparoscopic surgery (60 cases of gynecological operations and 30 cases of gallbladder operations). All patients were allocated into 3 groups of 30 patients each: group A (gynecological laparoscopic surgery), group B (gynecological laparoscopic surgery with mannitol treatment) and group C (laparoscopic cholecystectomy surgery). Perioperative SCTO2, mean blood flow velocity of vertebral artery (VM), vascular resistance index of vertebral artery (RI), and PONV (within 48 hours after surgery) were investigated. RESULTS: No differences in age, body weight, operation time, and hemoglobin levels were observed among the patients (P > .05). The SCTO2 values for groups B and C were lower than those for group A in both brain hemispheres at T4 and T5 (P < .05). The VM was higher in group B than in groups A and C at T3 (P < .05), but differences in VM were not observed between groups B and C at T4 or T5. However, the VM of group A was still lower than the other groups (P < .05), and no difference in VM was observed among the 3 groups at T6 (P > .05). The RI was higher in group C than in groups A and B at T4 (P < .05). The incidence of PONV within 48 hours after surgery was significantly higher in group A than in the other 2 groups (P < .05). CONCLUSION: Strategies that maintain normal SCTO2 may reduce the incidence of PONV in female patients who underwent laparoscopy surgery by reducing perioperative intracranial pressure. PMID- 29019900 TI - Methylation analysis of p16, SLIT2, SCARA5, and Runx3 genes in hepatocellular carcinoma. AB - This study is to investigate the methylation status of multiple tumor suppressor 1 (p16), secreted glycoprotein 2 (SLIT2), scavenger receptor class A, member 5 putative (SCARA5), and human runt-related transcription factor 3 (Runx3) genes in the peripheral blood of hepatocellular carcinoma (HCC).This is a case-control study. The peripheral blood samples were collected from 25 HCC patients, 25 patients with high risk of HCC (defined as "internal control group"), and 25 healthy individuals (defined as "external control group"), respectively. Then the methylation status of p16, SLIT2, SCARA5, and Runx3 genes in the blood samples were analyzed by pyrosequencing. The relationship between the methylation and the clinical features of HCC patients were evaluated.The methylation levels in the 7 CpG loci of p16 gene in HCC patients were low and without statistically significant difference (P > .05) compared to the control groups. Although the methylation levels of CpG3 and CpG4 in SLIT2 gene loci were higher than those of the control groups, there was no statistically significant difference (P > .05). However, the methylation rate of CpG2 locus in SCARA5 gene in HCC patients was significantly higher (P < .05). And the methylation rates of CpG1, CpG2, CpG3, CpG4, CpG5, and CpG8 in Runx3 gene in HCC patients were significantly different to that of control groups (P < .05). We also have analyzed the correlations between the CpG islands methylation of Runx3 or SCARA5 genes and the age, gender, hepatitis B, liver cirrhosis, alpha fetal protein, or hepatitis B surface antigen (HBsAg) of the HCC patients, which all showed no significant correlations (P > .05).The methylation status of SCARA5 and Runx3 genes are abnormal in HCC patients, which may further be used as molecular markers for early auxiliary diagnosis of liver cancer. PMID- 29019901 TI - Relationship between hematocrit levels and intraocular pressure in men and women: A population-based cross-sectional study. AB - To assess a possible relationship between hematocrit level and intraocular pressure (IOP) in both men and women.Data were collected from medical records of individuals examined at a screening center in Israel between the years 2000 and 2013. Hematocrit levels were categorized as low, normal, and high and by sex; IOP values were categorized as < 18 mmHg and >=18 mmHg.Cross-sectional analysis was performed on 18,424 subjects of mean (standard deviation) age 46 (10) years (68% male). Normal-range hematocrit for men was 42% to 52% and 37% to 47% for women. In men, mean [95% confidence interval CI)] IOP values by hematocrit level were as follows: below-normal hematocrit, 13.3 mmHg (13.2-13.3), normal hematocrit, 13.5 mmHg (13.4-13.5), above-normal hematocrit, 14.3 mmHg (13.5-15.2) (P < .001). Corresponding values in women were 12.9 mmHg (12.8-13.0), 13.0 mmHg (13.0-13.1), and 14.2 mmHg (12.9-15.6) (P = .014). The difference remained significant for men (P < .001) after adjustment for age, hypertension, diabetes, and body mass index. Men (but not women) with a low hematocrit were found to have a significantly lower odds ratio (95% CI) of having IOP >=18 mmHg than men with normal hematocrit: nonadjusted model, 0.761 (0.631-0.919); adjusted model, 0.771 (0.638 0.932) (P < .01).It is possible that a raised hematocrit level may also contribute to an elevated IOP in men in addition to the classic risk factors. PMID- 29019903 TI - An atypical presentation of functional visual loss: A case report. AB - RATIONALE: Functional visual loss (FVL) can manifest as various symptoms. Decreased distant visual acuity is the most common symptom and visual field defect is the second most common symptom. Hemianopsia is rarely reported. In an atypical situation of FVL, it is important to prove that no organic pathology exists, through detailed history taking and appropriate examinations. PATIENT CONCERNS: This review presents the case of a 48-year-old male patient presented with decreased bilateral visual acuity and visual field defect after a traffic accident 3 weeks ago. Visual field test showed atypical features of FVL in which visual field change from binasal hemianopsia to left homonymous hemianopsia. DIAGNOSIS: The best corrected visual acuities (BCVA) were 20/63 in both eyes and binasal hemianopsia was observed on a Humphrey visual field test. Brain computed tomography (CT) scan and magnetic resonance imaging (MRI) showed no abnormalities in the brain and optic chiasm. Two weeks after presentation, however, the patient's visual field defect changed from binasal hemianopsia to left homonymous hemianopsia. We diagnosed it as FVL due to conversion disorder. INTERVENTION AND OUTCOMES: We decided to cooperate with a psychiatrist for cognitive behavioral therapy and the patient is under observation. LESSONS: Binasal hemianopsia and homonymous hemianopsia are rare; however, it may occur simultaneously in 1 patient with FVL. The possibility of FVL should be considered when there is atypical visual field defect and no organic abnormalities are observed. Repeated Humphrey field test and VEP may be helpful in diagnosis of FVL. PMID- 29019902 TI - In vitro biomechanical comparison after fixed- and mobile-core artificial cervical disc replacement versus fusion. AB - In vitro biomechanical analysis after cervical disc replacement (CDR) with a novel artificial disc prosthesis (mobile core) was conducted and compared with the intact model, simulated fusion, and CDR with a fixed-core prosthesis. The purpose of this experimental study was to analyze the biomechanical changes after CDR with a novel prosthesis and the differences between fixed- and mobile-core prostheses.Six human cadaveric C2-C7 specimens were biomechanically tested sequentially in 4 different spinal models: intact specimens, simulated fusion, CDR with a fixed-core prosthesis (Discover, DePuy), and CDR with a mobile-core prosthesis (Pretic-I, Trauson). Moments up to 2 Nm with a 75 N follower load were applied in flexion-extension, left and right lateral bending, and left and right axial rotation. The total range of motion (ROM), segmental ROM, and adjacent intradiscal pressure (IDP) were calculated and analyzed in 4 different spinal models, as well as the differences between 2 disc prostheses.Compared with the intact specimens, the total ROM, segmental ROM, and IDP at the adjacent segments showed no significant difference after arthroplasty. Moreover, CDR with a mobile core prosthesis presented a little higher values of target segment (C5/6) and total ROM than CDR with a fixed-core prosthesis (P > .05). Besides, the difference in IDP at C4/5 after CDR with 2 prostheses was without statistical significance in all the directions of motion. However, the IDP at C6/7 after CDR with a mobile-core prosthesis was lower than CDR with a fixed-core prosthesis in flexion, extension, and lateral bending, with significant difference (P < .05), but not under axial rotation.CDR with a novel prosthesis was effective to maintain the ROM at the target segment and did not affect the ROM and IDP at the adjacent segments. Moreover, CDR with a mobile-core prosthesis presented a little higher values of target segment and total ROM, but lower IDP at the inferior adjacent segment than CDR with a fixed-core prosthesis. PMID- 29019904 TI - Imaging findings of inflammatory myofibroblastic tumor from the greater omentum: One case report. AB - RATIONALE: Inflammatory myofibroblastic tumors (IMTs) are rare neoplastic lesions with benign tendency. Even more rare are IMTs from the greater omentum (GO-IMT). A GO-IMT is easily misdiagnosed as other malignant tumors before operation; thus, clinicians need to be familiar with its imaging findings. Here, we report the imaging findings of a GO-IMT patient presenting with a pelvic mass. PATIENT CONCERNS: Ultrasound of the IMT in the pelvic cavity showed a hypoechoic mass. A computed tomography (CT) scan showed a nearly circular soft tissue mass with a clear border and heterogeneous density, and the surrounding tissues were pushed and compressed. Contrast-enhanced CT showed severe persistent enhancement in the lesion edges and mural nodules, but not in the central necrosis. DIAGNOSES: Histopathology and immunohistochemistry confirmed that the mass was a GO-IMT. INTERVENTIONS: The tumor was resected after preoperative preparation. OUTCOMES: No recurrence or metastasis was found during a short-term follow-up. LESSONS: The GO-IMT is an inferior epigastric mass in the periphery of the bowel, and is usually well-demarcated without calcification or lymphadenopathy. Contrast enhanced CT showed a heterogeneous hypervascular mass where the center necrosis, the edge of the tumor, and the mural nodules can be partially reinforced. PMID- 29019905 TI - Bezold-Jarisch reflex occurred in a pediatric patient with giant intra-abdominal teratoma during induction of anesthesia: A case report. AB - RATIONALE: Bezold-Jarisch reflex (BJR) occurs when the cardioinhibitory receptors in the walls of ventricles are activated by various stimuli, with typical features of bradycardia, vasorelaxation, and hypotension. This reflex usually happens in parturient intrathecal anesthesia, as a result of decreased venous return by compression of inferior vena cava, but it is only rarely reported during general anesthesia. PATIENT CONCERNS: Severe bradycardia and hypotension, indicating BJR, occurred during the induction of general anesthesia in a 3-month old female child with giant intra-abdominal teratoma. DIAGNOSES: A giant intra abdominal teratoma was detected by computed tomography scanning. The decreased left ventricular ejection faction along with increased troponin I and N-terminal pro-B-type natriuretic peptide indicated a preoperative mild cardiac dysfunction. BJR was diagnosed on the basis of the severe bradycardia and hypotension observed during the induction of general anesthesia, INTERVENTIONS:: Atropine failed to increase heart rate. Cardiopulmonary resuscitation was initiated immediately and epinephrine was injected intravenously because of sudden circulatory collapse. Soon after the return of spontaneous circulation, a central venous line was placed and invasive blood pressure was monitored. Vital signs and homeostasis were kept stable during teratoma resection. OUTCOMES: The child was extubated after emergence from anesthesia in the operating room. Eleven days later, she had recovered without complications and was discharged. LESSONS: General anesthesia should be induced with great care in patients with giant intra-abdominal masses, and the patient should be kept in the left-lateral table tilt position before induction. PMID- 29019906 TI - Predicting Child Protective Services (CPS) Involvement among Low-Income U.S. Families with Young Children Receiving Nutritional Assistance. AB - This exploratory study examines combinations of income-tested welfare benefits and earnings, as they relate to the likelihood of child maltreatment investigations among low-income families with young children participating in a nutritional assistance program in one U.S. state (Wisconsin). Using a sample of 1065 parents who received the Special Supplemental Nutrition Assistance Program for Women, Infants, and Children (WIC) benefits in late 2010 and early 2011, we find that relying on either work in the absence of other means-tested welfare benefits, or a combination of work and welfare benefits, reduces the likelihood of CPS involvement compared to parents who rely on welfare benefits in the absence of work. Additionally, we find that housing instability increases the risk of CPS involvement in this population. The findings from this investigation may be useful to programs serving low-income families with young children, as they attempt to identify safety net resources for their clientele. PMID- 29019907 TI - Effect of High-Pressure Treatment on Catalytic and Physicochemical Properties of Pepsin. AB - For a long time, high-pressure treatment has been used to destroy the compact structures of natural proteins in order to promote subsequent enzymatic hydrolysis. However, there are few reports evaluating the feasibility of directly improving the catalytic capability of proteases by using high-pressure treatments. In this study, the effects of high-pressure treatment on the catalytic capacity and structure of pepsin were investigated, and the relationship between its catalytic properties and changes in its physicochemical properties was explored. It was found that high-pressure treatment could lead to changes of the sulfhydryl group/disulfide bond content, hydrophobicity, hydrodynamic radius, intrinsic viscosity, and subunit composition of pepsin, and the conformational change of pepsin resulted in improvement to its enzymatic activity and hydrolysis efficiency, which had an obvious relationship with the high-pressure treatment conditions. PMID- 29019908 TI - Sequencing and Characterization of Novel PII Signaling Protein Gene in Microalga Haematococcus pluvialis. AB - The PII signaling protein is a key protein for controlling nitrogen assimilatory reactions in most organisms, but little information is reported on PII proteins of green microalga Haematococcus pluvialis. Since H. pluvialis cells can produce a large amount of astaxanthin upon nitrogen starvation, its PII protein may represent an important factor on elevated production of Haematococcus astaxanthin. This study identified and isolated the coding gene (HpGLB1) from this microalga. The full-length of HpGLB1 was 1222 bp, including 621 bp coding sequence (CDS), 103 bp 5' untranslated region (5' UTR), and 498 bp 3' untranslated region (3' UTR). The CDS could encode a protein with 206 amino acids (HpPII). Its calculated molecular weight (Mw) was 22.4 kDa and the theoretical isoelectric point was 9.53. When H. pluvialis cells were exposed to nitrogen starvation, the HpGLB1 expression was increased 2.46 times in 48 h, concomitant with the raise of astaxanthin content. This study also used phylogenetic analysis to prove that HpPII was homogeneous to the PII proteins of other green microalgae. The results formed a fundamental basis for the future study on HpPII, for its potential physiological function in Haematococcus astaxanthin biosysthesis. PMID- 29019909 TI - Effect of Ge Nanocrystals on 1.54 MUm Photoluminescence Enhancement in Er2O3:ZnO and Ge Co-Sputtered Films. AB - Photoluminescence (PL) of Er and Ge co-doped ZnO films synthesized by radio frequency magnetron co-sputtering was investigated. X-ray diffraction (XRD) patterns showed that the annealing process at 400-800 degrees C led to the formation of nanocrystal (nc) Ge. Samples containing nc-Ge showed a strong visible PL with a peak at 582-593 nm, which was consistent with the calculated energy of the exciton of the ~5 nm-sized nc-Ge, according to the quantum confinement effect. The formation of nc-Ge could greatly enhance the 1.54 MUm emission, and it is considered that the 1.54 MUm PL enhancement may come from a joint effect of both the energy transfer from nc-Ge to Er3+ and the local environment change of Er3+. PMID- 29019910 TI - Determination of Salmonella spp., E. coli VTEC, Vibrio spp., and Norovirus GI-GII in Bivalve Molluscs Collected from Growing Natural Beds in Sardinia (Italy). AB - The aim of the present study was to evaluate the presence of Salmonella spp., verotoxigenic E. coli (VTEC), Vibrio spp., and Norovirus GI-GII in bivalve molluscs, cockles, and European grooved carpet shells (Cerastoderma spp. and Ruditapes decussatus) collected from a class B growing natural bed in Sardinia (Italy). All of the samples were analysed for Salmonella spp. detection according to European Commission Regulation (EC) 2285/2015. Detection and enumeration of Vibrio spp. were performed according to previously published methods. Presumptive identification of Vibrio spp. isolates was performed by means of conventional biochemical tests. E. coli VTEC was isolated following a direct multiplex polymerase chain reaction (PCR) screening test. Norovirus GI and GII were determined by reverse transcriptase-polymerase chain reaction (RT-PCR). No Salmonella spp. were detected. The prevalence of Vibrio spp. was 90%, and the average contamination levels were 3.19 +/- 1.07 and 2.84 +/- 0.31 Log10 cfu/g in cockles and European grooved carpet shells, respectively. The prevalence of E. coli VTEC was 6.6%. All of the isolates showed a complete pathogenicity profile. The presence of Norovirus was highlighted in 25% of European grooved carpet shells samples. Results showed the typical microbiological profile of bivalve molluscs collected from backwaters and confirmed the capability of shellfish to accumulate E. coli VTEC, pathogenic vibrios, and Norovirus. The presence of such pathogens in shellfish is of major concern for the safety of consumers. PMID- 29019911 TI - The Effects of Alkyl Chain Combinations on the Structural and Mechanical Properties of Biomimetic Ion Pair Amphiphile Bilayers. AB - Ion pair amphiphile (IPA), a lipid-like complex composed of a pair of cationic and anionic surfactants, has great potentials in various pharmaceutical applications. In this work, we utilized molecular dynamics (MD) simulation to systematically examine the structural and mechanical properties of the biomimetic bilayers consist of alkyltrimethyl-ammonium-alkylsulfate (CmTMA+-CnS-) IPAs with various alkyl chain combinations. Our simulations show an intrinsic one-atom offset for the CmTMA+ and CnS- alignment, leading to the asymmetric index definition of DeltaC = m - (n + 1). Larger |DeltaC| gives rise to higher conformational fluctuations of the alkyl chains with the reduced packing order and mechanical strength. In contrast, increasing the IPA chain length enhances the van der Waals interactions within the bilayer and thus improves the bilayer packing order and mechanical properties. Further elongating the CmTMA+-CnS- alkyl chains to m and n >= 12 causes the liquid disorder to gel phase transition of the bilayer at 298 K, with the threshold membrane properties of 0.45 nm2 molecular area, deuterium order parameter value of 0.31, and effective bending rigidity of 20 kBT, etc. The combined results provide molecular insights into the design of biomimetic IPA bilayers with wide structural and mechanical characteristics for various applications. PMID- 29019913 TI - Toxic Elements in Different Medicinal Plants and the Impact on Human Health. AB - Local medicinal plants from Madina, Saudi Arabia, are used to cure various diseases. However, some can cause adverse health effects. Five different medicinal plants were collected in the city of Madina: mahareeb (Cymbopogon), sheeh (Artemisia), harjal (Cynanchum argel delile), nabipoot (Equisetum), and kafmariam (Vitex agnus-castus). In total, four toxic elements including Al, Pb, As, and Cd were analyzed using inductively coupled plasma mass spectrometry (ICP MS). The range of recoveries fell between 86.1 and 90.6% for all measured elements. Al levels were the highest of any of the studied elements in all plant samples, with Cymbopogon showing the highest levels. The range of concentrations of Al was 156-1609 mg/kg. Cd appeared at the lowest levels in all plants samples, with Vitex agnus-castus containing this element at the highest levels. Cd concentrations were in the range of 0.01-0.10 mg/kg. A washing process lowered the toxic elements in all plants; average % recoveries were Al (47.32%), As (59.1%), Cd (62.03%), and Pb (32.40%). The calculated human health risk assessment in one dose for toxic elements in all plants was as follows: Al (1.33 * 10-3-5.57 * 10-2 mg/kg.bw), Pb (0-8.86 * 10-5 mg/kg.bw), As (3.43 * 10-7-1.33 * 10-5 mg/kg.bw), and Cd (0-3.14 * 10-6 mg/kg.bw). Medicinal plants are a source of exposure to toxic elements. However, none of the plants in this study exceeded the daily guideline set by the WHO for any element based on conventional use by the local population. We may cautiously conclude that these medicinal plants pose no risk to users based on conventional use. PMID- 29019912 TI - Validation and Assessment of Three Methods to Estimate 24-h Urinary Sodium Excretion from Spot Urine Samples in High-Risk Elder Patients of Stroke from the Rural Areas of Shaanxi Province. AB - Background: 24-h urine collection is regarded as the "gold standard" for monitoring sodium intake at the population level, but ensuring high quality urine samples is difficult to achieve. The Kawasaki, International Study of Sodium, Potassium, and Blood Pressure (INTERSALT) and Tanaka methods have been used to estimate 24-h urinary sodium excretion from spot urine samples in some countries, but few studies have been performed to compare and validate these methods in the Chinese population. Objective: To compare and validate the Kawasaki, INTERSALT and Tanaka formulas in predicting 24-h urinary sodium excretion using spot urine samples in 365 high-risk elder patients of strokefrom the rural areas of Shaanxi province. Methods: Data were collected from a sub-sample of theSalt Substitute and Stroke Study. 365 high-risk elder patients of stroke from the rural areas of Shaanxi province participated and their spot and 24-h urine specimens were collected. The concentrations of sodium, potassium and creatinine in spot and 24 h urine samples wereanalysed. Estimated 24-h sodium excretion was predicted from spot urine concentration using the Kawasaki, INTERSALT, and Tanaka formulas. Pearson correlation coefficients and agreement by Bland-Altman method were computed for estimated and measured 24-h urinary sodium excretion. Results: The average 24-h urinary sodium excretion was 162.0 mmol/day, which representing a salt intake of 9.5 g/day. Three predictive equations had low correlation with the measured 24-h sodium excretion (r = 0.38, p < 0.01; ICC = 0.38, p < 0.01 for the Kawasaki; r = 0.35, p < 0.01; ICC = 0.31, p < 0.01 for the INTERSALT; r = 0.37, p < 0.01; ICC = 0.34, p < 0.01 for the Tanaka). Significant biases between estimated and measured 24-h sodium excretion were observed (all p < 0.01 for three methods). Among the three methods, the Kawasaki method was the least biased compared with the other two methods (mean bias: 31.90, 95% Cl: 23.84, 39.97). Overestimation occurred when the Kawasaki and Tanaka methods were used while the INTERSALT method underestimated 24-h sodium excretion. Conclusion: The Kawasaki, INTERSALT and Tanaka methods for estimation of 24-h urinary sodium excretion from spot urine specimens were inadequate for the assessment of sodium intake at the population level in high-risk elder patients of stroke from the rural areas of Shaanxi province, although the Kawasaki method was the least biased compared with the other two methods. PMID- 29019914 TI - Landscapes and Human Health. AB - As urbanization increases around the world and fewer and fewer people have easy access to completely natural places, there is a growing need to understand how the landscapes we design and inhabit impact our health and wellbeing.[...]. PMID- 29019915 TI - Revolutionizing Therapeutic Drug Monitoring with the Use of Interstitial Fluid and Microneedles Technology. AB - While therapeutic drug monitoring (TDM) that uses blood as the biological matrix is the traditional gold standard, this practice may be impossible, impractical, or unethical for some patient populations (e.g., elderly, pediatric, anemic) and those with fragile veins. In the context of finding an alternative biological matrix for TDM, this manuscript will provide a qualitative review on: (1) the principles of TDM; (2) alternative matrices for TDM; (3) current evidence supporting the use of interstitial fluid (ISF) for TDM in clinical models; (4) the use of microneedle technologies, which is potentially minimally invasive and pain-free, for the collection of ISF; and (5) future directions. The current state of knowledge on the use of ISF for TDM in humans is still limited. A thorough literature review indicates that only a few drug classes have been investigated (i.e., anti-infectives, anticonvulsants, and miscellaneous other agents). Studies have successfully demonstrated techniques for ISF extraction from the skin but have failed to demonstrate commercial feasibility of ISF extraction followed by analysis of its content outside the ISF-collecting microneedle device. In contrast, microneedle-integrated biosensors built to extract ISF and perform the biomolecule analysis on-device, with a key feature of not needing to transfer ISF to a separate instrument, have yielded promising results that need to be validated in pre-clinical and clinical studies. The most promising applications for microneedle-integrated biosensors is continuous monitoring of biomolecules from the skin's ISF. Conducting TDM using ISF is at the stage where its clinical utility should be investigated. Based on the advancements described in the current review, the immediate future direction for this area of research is to establish the suitability of using ISF for TDM in human models for drugs that have been found suitable in pre-clinical experiments. PMID- 29019916 TI - An Overview of Recent Findings on Social Anxiety Disorder in Adolescents and Young Adults at Clinical High Risk for Psychosis. AB - BACKGROUND: Some studies have shown that anxiety is particularly frequent in the Clinical High Risk (CHR) for psychosis population. Notably, social anxiety disorder is identified as one of the most common anxiety disorders in CHR adolescents and young adults. Despite this, the frequency and the clinical significance of social anxiety in this population have been underestimated. METHODS: A selective review of literature published between 2011 and 2017 on social anxiety disorder in CHR adolescents and young adults. RESULTS: Five studies are included. In particular, three studies demonstrated that CHR adolescents and young adults have higher levels of anxiety compared to controls. Furthermore, anxiety, including social anxiety, is related to the severity of psychotic symptoms. The other studies included show inconsistent results regarding the possible relationship between social anxiety and social functioning. CONCLUSIONS: To date, the eidence concerning the comorbidity of social anxiety disorder and CHR in adolescents and young adults is not sufficient to provide clear guidelines for clinical practice. Future longitudinal studies on larger samples of the CHR adolescents and young adults are required to examine the relationship between social anxiety disorder and the presence of attenuated psychotic symptomatology. PMID- 29019917 TI - The Prevalence and Characteristics of E-Cigarette Users in the U.S. AB - Studies have examined the characteristics of individuals who use e-cigarettes, including sociodemographic and smoking characteristics, and the relationship of e cigarette use to tobacco control policies. While most studies consider a subset of these characteristics with weak measures of regular e-cigarette use, this study uses a large, recent U.S. survey to simultaneously consider the association of each of these factors with different use measures. Data from the May 2014 Tobacco Use Supplement-Current Population Survey is supplemented with information on tobacco control policies. The prevalence of ever, current (at least 1 of the last 30 days), and regular (at least 20 of the last 30 days) e-cigarette use were 7.7%, 2.1% and 0.9%, implying that 27.0% of ever users were current users of which 45.3% were regular users. E-cigarette use varied by socio-demographic characteristics and by smoking status, and depended on the measure of use adopted. However, regardless of measures, e-cigarette use was higher among those smokers who smoked more cigarettes. The association with policies was generally weak, but we found more regular use by smokers in low tax and low tobacco control spending states. The results indicate that the user characteristics differ depending on the e-cigarette use measure. The measure of use should be carefully considered in analyzing how e-cigarette use affects cigarette use. PMID- 29019918 TI - Protein Misfolding and Aggregation as a Therapeutic Target for Polyglutamine Diseases. AB - The polyglutamine (polyQ) diseases, such as Huntington's disease and several types of spinocerebellar ataxias, are a group of inherited neurodegenerative diseases that are caused by an abnormal expansion of the polyQ tract in disease causative proteins. Proteins with an abnormally expanded polyQ stretch undergo a conformational transition to beta-sheet rich structure, which assemble into insoluble aggregates with beta-sheet rich amyloid fibrillar structures and accumulate as inclusion bodies in neurons, eventually leading to neurodegeneration. Since misfolding and aggregation of the expanded polyQ proteins are the most upstream event in the most common pathogenic cascade of the polyQ diseases, they are proposed to be one of the most ideal targets for development of disease-modifying therapies for polyQ diseases. In this review, we summarize the current understanding of the molecular pathogenic mechanisms of the polyQ diseases, and introduce therapeutic approaches targeting misfolding and aggregation of the expanded polyQ proteins, which are not only effective on a wide spectrum of polyQ diseases, but also broadly correct the functional abnormalities of multiple downstream cellular processes affected in the aggregation process of polyQ proteins. We hope that in the near future, effective therapies are developed, to bring hope to many patients suffering from currently intractable polyQ diseases. PMID- 29019920 TI - Pratol, an O-Methylated Flavone, Induces Melanogenesis in B16F10 Melanoma Cells via p-p38 and p-JNK Upregulation. AB - Tyrosinase is the rate-limiting enzyme critical for melanin synthesis. It controls pigmentation in the skin. Activation of tyrosinase is currently the most common approach in the development of tanning and haircare products. Pratol is a 7-hydroxy-4-methoxyflavone found in Trifoliumpratense. In this study, we investigated the effects of pratol on melanogenesis. We also studied the mechanism of action of pratol in B16F10 mouse melanoma cells. The cells were treated with various concentrations (6.25, 12.5, 25, and 50 MUM) of pratol to observe its effects. The results showed that pratol significantly increased melanin content and tyrosinase activity in the cells without being cytotoxic. In addition, pratol strongly increased the expression of tyrosinase and tyrosinase related protein-1 and 2 by enhancing the expression of microphthalmia-associated transcription factor. Furthermore, pratol stimulated melanogenesis via the phosphorylation of p38, c-Jun N-terminal kinases (JNK), and extracellular signal regulated kinase (ERK). The findings from an assay searching for the inhibitor revealed that SB203580 (a specific p38 inhibitor) or SP600125 (a p-JNK inhibitor) attenuated pratol-induced cellular tyrosinase activity whereas PD98059 (an ERK inhibitor) did not. Additionally, pratol interfered with the phosphorylation of p AKT. We also found that pratol-induced melanogenesis was reversed by H89, which is a specific protein kinase A inhibitor. The results suggest that, owing to its multi-functional properties, pratol may be a potential tanning agent or a therapeutic agent for hair depigmentation in the cosmetic industry. PMID- 29019921 TI - Persistence of Norovirus GII Genome in Drinking Water and Wastewater at Different Temperatures. AB - Human norovirus (NoV) causes waterborne outbreaks worldwide suggesting their ability to persist and survive for extended periods in the environment. The objective of this study was to determine the persistence of the NoV GII genome in drinking water and wastewater at three different temperatures (3 degrees C, 21 degrees C, and 36 degrees C). The persistence of two NoV GII inoculums (extracted from stool) and an indigenous NoV GII were studied. The samples were collected for up to one year from drinking water and for up to 140 days from wastewater. Molecular methods (RT-qPCR) were used to assess the decay of the NoV genome. Decay rate coefficients were determined from the fitted decay curves using log-linear and/or non-linear model equations. Results showed significant differences in the decay kinetics of NoV genome between the temperatures, matrices, and virus strains. The persistence of NoV was higher in drinking water compared to wastewater, and the cold temperature assisted persistence at both matrices. Differences between the persistence of NoV strains were also evident and, particularly, indigenous NoVs persisted better than spiked NoVs in wastewater. The decay constants obtained in this study can be utilized to assess the fate of the NoV genome in different water environments. PMID- 29019919 TI - Proteogenomics in Aid of Host-Pathogen Interaction Studies: A Bacterial Perspective. AB - By providing useful tools to study host-pathogen interactions, next-generation omics has recently enabled the study of gene expression changes in both pathogen and infected host simultaneously. However, since great discriminative power is required to study pathogen and host simultaneously throughout the infection process, the depth of quantitative gene expression profiling has proven to be unsatisfactory when focusing on bacterial pathogens, thus preferentially requiring specific strategies or the development of novel methodologies based on complementary omics approaches. In this review, we focus on the difficulties encountered when making use of proteogenomics approaches to study bacterial pathogenesis. In addition, we review different omics strategies (i.e., transcriptomics, proteomics and secretomics) and their applications for studying interactions of pathogens with their host. PMID- 29019922 TI - Effect of Silicate Slag Application on Wheat Grown Under Two Nitrogen Rates. AB - Field studies were established on the alluvial floodplain soils in Louisiana, from 2013 to 2015, to evaluate the effect of silicate slag applications on productivity of wheat (Triticum aestivum), under sufficient and high nitrogen (N) application rates. Treatments were arranged in a randomized complete block design, with four replications consisting of twelve treatments: a factorial combination of two N (101 and 145 kg N ha-1) and five silicate slag rates (0, 1, 2, 4.5, and 9 Mg ha-1), and two control plots (with and without lime). Nitrogen had a greater impact on wheat productivity than silicate slag application. Wheat grain yield reached over 7000 kg ha-1 with applications of 145 kg N, and 9 Mg silicate slag per ha for soil having Si level <20 mg kg-1. Yield increases due to N or Si were attributed to the increase in number of spike m-2 and grain number spike-1. Silicate slag application effectively raised soil pH, and availability of several plant-essential nutrients, including plant-available N (nitrate, NO3 ), demonstrating the benefits of slag application are beyond increasing plant available Si. The benefits of silicate slag application were clearly observed in wheat supplied with high N, and on soil with low plant-available Si. PMID- 29019923 TI - The Attitude of Medical and Pharmacy Students towards Research Activities: A Multicenter Approach. AB - Aim: To assess the attitude of medical and pharmacy students in Asian and African universities towards scholarly research activities. Methods: An anonymous, cross sectional, self-reported online survey questionnaire was administered to medical and pharmacy students studying in various Asian and African universities through social media between May and July 2016. A 68-item close-ended questionnaire consisting of Likert-scale options assessed the students' research-specific experiences, and their attitudes towards scholarly research publications. Results: A total of 512 questionnaires were completed, with a response rate of 92% from Asia and 94% from Africa. More pharmacy students (70.8%) participated than medical students (29.2%). Overall 52.2% of the pharmacy students and 40% of medical students believed that research activities provided a means of gaining respect from their faculty members. Lack of encouragement, paucity of time, gaps in research activities and practices, and lack of research funding were some of the most common barriers acknowledged by the students. A nonparametric Mann Whitney test showed that a statistically significant difference was observed, in that more than 80% of the pharmacy students viewed scientific writing and research activities as valuable experiences (p = 0.001) and would like to involve their co-students in scholarly research activities (p = 0.002); whereas the majority of the medical students desired to be involved more in scholarly research publications (p = 0.033). Conclusion: Pharmacy students had good attitudes towards research activities and a higher number of medical students desired to be involved more in research publications. Faculties may consider taking special research initiatives to address the barriers and improve the involvement of medical and pharmacy students in scholarly research activities. PMID- 29019924 TI - Impact of Temperature and UV Irradiation on Dynamics of NO2 Sensors Based on ZnO Nanostructures. AB - The main object of this study is the improvement of the dynamics of NO2 sensors based on ZnO nanostructures. Investigations presented in this paper showed that the combination of temperature and ultraviolet (UV) activation of the sensors can significantly decrease the sensor response and regeneration times. In comparison with the single activation method (elevated temperature or UV), these times for 1 ppm of NO2 decreased from about 10 min (or more) to less than 40 s. In addition, at the optimal conditions (200 degrees C and UV), sensors were very stable, were fully scalable (in the range on NO2 concentration of 1-20 ppm) and baseline drift was significantly reduced. Furthermore, in this paper, extensive studies of the influence of temperature and carrier gas (nitrogen and air) on NO2 sensing properties of the ZnO nanostructures were conducted. The NO2 sensing mechanisms of the sensors operating at elevated temperatures and under UV irradiation were also discussed. Our study showed that sensor responses to NO2 and response/regeneration times are comparable from sensor to sensor in air and nitrogen conditions, which suggests that the proposed simple technology connected with well-chosen operation conditions is repeatable. The estimated limit of detection of the sensors is within the level of ~800 ppb in nitrogen and ~700 ppb in air. PMID- 29019925 TI - Three-Dimensional Porous Nitrogen-Doped NiO Nanostructures as Highly Sensitive NO2 Sensors. AB - Nickel oxide has been widely used in chemical sensing applications, because it has an excellent p-type semiconducting property with high chemical stability. Here, we present a novel technique of fabricating three-dimensional porous nitrogen-doped nickel oxide nanosheets as a highly sensitive NO2 sensor. The elaborate nanostructure was prepared by a simple and effective hydrothermal synthesis method. Subsequently, nitrogen doping was achieved by thermal treatment with ammonia gas. When the p-type dopant, i.e., nitrogen atoms, was introduced in the three-dimensional nanostructures, the nickel-oxide-nanosheet-based sensor showed considerable NO2 sensing ability with two-fold higher responsivity and sensitivity compared to non-doped nickel-oxide-based sensors. PMID- 29019926 TI - The Effects of Acid Etching on the Nanomorphological Surface Characteristics and Activation Energy of Titanium Medical Materials. AB - The purpose of this study was to characterize the etching mechanism, namely, the etching rate and the activation energy, of a titanium dental implant in concentrated acid and to construct the relation between the activation energy and the nanoscale surface topographies. A commercially-pure titanium (CP Ti) and Ti 6Al-4V ELI surface were tested by shot blasting (pressure, grain size, blasting distance, blasting angle, and time) and acid etching to study its topographical, weight loss, surface roughness, and activation energy. An Arrhenius equation was applied to derive the activation energy for the dissolution of CP Ti/Ti-6Al-4V ELI in sulfuric acid (H2SO4) and hydrochloric acid (HCl) at different temperatures. In addition, white-light interferometry was applied to measure the surface nanomorphology of the implant to obtain 2D or 3D roughness parameters (Sa, Sq, and St). The nanopore size that formed after etching was approximately 100-500 nm. The surface roughness of CP Ti and Ti-6Al-4V ELI decreased as the activation energy decreased but weight loss increased. Ti-6Al-4V ELI has a higher level of activation energy than Ti in HCl, which results in lower surface roughness after acid etching. This study also indicates that etching using a concentrated hydrochloric acid provided superior surface modification effects in titanium compared with H2SO4. PMID- 29019928 TI - The Abundance of Toxic Genotypes Is a Key Contributor to Anatoxin Variability in Phormidium-Dominated Benthic Mats. AB - The prevalence of benthic proliferations of the anatoxin-producing cyanobacterium Phormidium are increasing in cobble-bed rivers worldwide. Studies to date have shown high spatial and temporal variability in anatoxin concentrations among mats. In this study we determined anatoxin quotas (toxins per cell) in field samples and compared these results to the conventionally-used concentrations (assessed per dry weight of mat). Three mats were selected at sites in two rivers and were sampled every 2-3 h for 24-26 h. The samples were lyophilized and ground to a fine homogenous powder. Two aliquots of known weights were analyzed for anatoxin congeners using liquid chromatography-mass spectrometry, or digital droplet PCR with Phormidium-specific anaC primers to measure absolute quantities of gene copies. Anatoxin concentrations in the mats varied 59- and 303-fold in the two rivers over the study periods. A similar pattern was observed among gene copies (53- and 2828-fold). When converted to anatoxin quotas there was markedly less variability (42- and 16-fold), but significantly higher anatoxin quotas were observed in mats from the second river (p < 0.001, Student's t-test). There were no obvious temporal patterns with high and low anatoxin concentrations or quotas measured at each sampling time and across the study period. These results demonstrate that variability in anatoxin concentrations among mats is primarily due to the abundance of toxic genotypes. No consistent modulation in anatoxin production was observed during the study, although significant differences in anatoxin quotas among rivers suggest that site-specific physiochemical or biological factors may influence anatoxin production. PMID- 29019927 TI - Mediterranean Diet Adherence and Genetic Background Roles within a Web-Based Nutritional Intervention: The Food4Me Study. AB - Mediterranean Diet (MedDiet) adherence has been proven to produce numerous health benefits. In addition, nutrigenetic studies have explained some individual variations in the response to specific dietary patterns. The present research aimed to explore associations and potential interactions between MedDiet adherence and genetic background throughout the Food4Me web-based nutritional intervention. Dietary, anthropometrical and biochemical data from volunteers of the Food4Me study were collected at baseline and after 6 months. Several genetic variants related to metabolic risk features were also analysed. A Genetic Risk Score (GRS) was derived from risk alleles and a Mediterranean Diet Score (MDS), based on validated food intake data, was estimated. At baseline, there were no interactions between GRS and MDS categories for metabolic traits. Linear mixed model repeated measures analyses showed a significantly greater decrease in total cholesterol in participants with a low GRS after a 6-month period, compared to those with a high GRS. Meanwhile, a high baseline MDS was associated with greater decreases in Body Mass Index (BMI), waist circumference and glucose. There also was a significant interaction between GRS and the MedDiet after the follow-up period. Among subjects with a high GRS, those with a high MDS evidenced a highly significant reduction in total carotenoids, while among those with a low GRS, there was no difference associated with MDS levels. These results suggest that a higher MedDiet adherence induces beneficial effects on metabolic outcomes, which can be affected by the genetic background in some specific markers. PMID- 29019930 TI - Biological Evaluation and Molecular Docking of Protocatechuic Acid from Hibiscus sabdariffa L. as a Potent Urease Inhibitor by an ESI-MS Based Method. AB - Studies on enzyme inhibition remain a crucial area in drug discovery since these studies have led to the discoveries of new lead compounds useful in the treatment of several diseases. In this study, protocatechuic acid (PCA), an active compound from Hibiscus sabdariffa L. has been evaluated for its inhibitory properties against jack bean urease (JBU) as well as its possible toxic effect on human gastric epithelial cells (GES-1). Anti-urease activity was evaluated by an Electrospray Ionization-Mass Spectrometry (ESI-MS) based method, while cytotoxicity was assayed by the MTT method. PCA exerted notable anti-JBU activity compared with that of acetohydroxamic acid (AHA), with IC50 values of 1.7 and 3.2 uM, respectively. PCA did not show any significant cytotoxic effect on (GES-1) cells at concentrations ranging from 1.12 to 3.12 uM. Molecular docking study revealed high spontaneous binding ability of PCA to the active site of urease. Additionally, the anti-urease activity was found to be related to the presence of hydroxyl moieties of PCA. This study presents PCA as a natural urease inhibitor, which could be used safely in the treatment of diseases caused by urease producing bacteria. PMID- 29019931 TI - Targeted Next-Generation Sequencing Identification of Mutations in Disease Resistance Gene Analogs (RGAs) in Wild and Cultivated Beets. AB - Resistance gene analogs (RGAs) were searched bioinformatically in the sugar beet (Beta vulgaris L.) genome as potential candidates for improving resistance against different diseases. In the present study, Ion Torrent sequencing technology was used to identify mutations in 21 RGAs. The DNA samples of ninety six individuals from six sea beets (Beta vulgaris L. subsp. maritima) and six sugar beet pollinators (eight individuals each) were used for the discovery of single-nucleotide polymorphisms (SNPs). Target amplicons of about 200 bp in length were designed with the Ion AmpliSeq Designer system in order to cover the DNA sequences of the RGAs. The number of SNPs ranged from 0 in four individuals to 278 in the pollinator R740 (which is resistant to rhizomania infection). Among different groups of beets, cytoplasmic male sterile lines had the highest number of SNPs (132) whereas the lowest number of SNPs belonged to O-types (95). The principal coordinates analysis (PCoA) showed that the polymorphisms inside the gene Bv8_184910_pkon (including the CCCTCC sequence) can effectively differentiate wild from cultivated beets, pointing at a possible mutation associated to rhizomania resistance that originated directly from cultivated beets. This is unlike other resistance sources that are introgressed from wild beets. This gene belongs to the receptor-like kinase (RLK) class of RGAs, and is associated to a hypothetical protein. In conclusion, this first report of using Ion Torrent sequencing technology in beet germplasm suggests that the identified sequence CCCTCC can be used in marker-assisted programs to differentiate wild from domestic beets and to identify other unknown disease resistance genes in beet. PMID- 29019929 TI - Chemical and Biological Research on Herbal Medicines Rich in Xanthones. AB - Xanthones, as some of the most active components and widely distributed in various herb medicines, have drawn more and more attention in recent years. So far, 168 species of herbal plants belong to 58 genera, 24 families have been reported to contain xanthones. Among them, Calophyllum, Cratoxylum, Cudrania, Garcinia, Gentiana, Hypericum and Swertia genera are plant resources with great development prospect. This paper summarizes the plant resources, bioactivity and the structure-activity relationships (SARs) of xanthones from references published over the last few decades, which may be useful for new drug research and development on xanthones. PMID- 29019932 TI - ASIC1a Promotes Acid-Induced Autophagy in Rat Articular Chondrocytes through the AMPK/FoxO3a Pathway. AB - Acid-sensing ion channel 1a (ASIC1a) is a member of the extracellular H+ activated cation channels family. Our previous studies suggested that ASIC1a contributed to acid-induced rat articular chondrocytes autophagy. However, its potential mechanisms remain unclear. The present study demonstrated the effect of ASIC1a on rat articular chondrocytes autophagy and explored the underlying molecular mechanisms. The results demonstrated that ASIC1a contributed to acid induced autophagy in rat articular chondrocytes, and which was associated with an increase in (Ca2+)i, as indicated that acid-induced increases in mRNA and protein expression of LC3B-II and other autophagy-related markers were inhibited by ASIC1a-specific blocker, PcTx1 and calcium chelating agent, BAPTA-AM. Furthermore, the results showed that extracellular acid increased level of Forkhead box O (FoxO) 3a, but was reversed by inhibition of ASIC1a and Ca2+ influx. Moreover, gene ablation of FoxO3a prevented acid-induced increases in mRNA and protein expression of LC3B-II, Beclin1 and the formation of autophagosome. Finally, it also showed that ASIC1a activated adenine nucleotide (AMP)-activated protein kinase (AMPK). In addition, suppression of AMPK by Compound C and its small interfering RNA (siRNA) prevented acid-induced upregulation of total and nuclear FoxO3a and increases in mRNA and protein expression of LC3B-II, Beclin1, and ATG5. Taken together, these findings suggested that AMPK/FoxO3a axis plays an important role in ASIC1a-mediated autophagy in rat articular chondrocytes, which may provide novel mechanistic insight into ASIC1a effects on autophagy. PMID- 29019934 TI - A Massively Parallel Sequence Similarity Search for Metagenomic Sequencing Data. AB - Sequence similarity searches have been widely used in the analyses of metagenomic sequencing data. Finding homologous sequences in a reference database enables the estimation of taxonomic and functional characteristics of each query sequence. Because current metagenomic sequencing data consist of a large number of nucleotide sequences, the time required for sequence similarity searches account for a large proportion of the total time. This time-consuming step makes it difficult to perform large-scale analyses. To analyze large-scale metagenomic data, such as those found in the human oral microbiome, we developed GHOST-MP (Genome-wide HOmology Search Tool on Massively Parallel system), a parallel sequence similarity search tool for massively parallel computing systems. This tool uses a fast search algorithm based on suffix arrays of query and database sequences and a hierarchical parallel search to accelerate the large-scale sequence similarity search of metagenomic sequencing data. The parallel computing efficiency and the search speed of this tool were evaluated. GHOST-MP was shown to be scalable over 10,000 CPU (Central Processing Unit) cores, and achieved over 80-fold acceleration compared with mpiBLAST using the same computational resources. We applied this tool to human oral metagenomic data, and the results indicate that the oral cavity, the oral vestibule, and plaque have different characteristics based on the functional gene category. PMID- 29019933 TI - Adsorption Removal of 17beta-Estradiol from Water by Rice Straw-Derived Biochar with Special Attention to Pyrolysis Temperature and Background Chemistry. AB - Rice straw biochar that produced at three pyrolysis temperatures (400, 500 and 600 degrees C) were used to investigate the adsorption properties of 17beta estradiol (E2). The biochar samples were characterized by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), elemental analysis and BET surface area measurements. The influences of pyrolysis temperature, E2 concentration, pH, ionic strength, background electrolyte and humic acid were studied. Kinetic and isotherm results illustrated that the adsorption process could be well described by pseudo-second-order and Freundlich models. Experimental results showed that ionic strength had less influence on the adsorption of E2 by 500 and 600 degrees C rice straw biochar. Further, multivalent ions had positive impact on E2 removal than monovalent ions and the influence of the pyrolysis temperature was unremarkable when background electrolyte existed in solutions. The adsorption capacity of E2 decreased with the pH ranged from 3.0 to 12.0 and the humic acid concentration from 2 to 10 mg L 1. Electrostatic attractions and pi-pi interaction were involved in the adsorption mechanisms. Compared to low-temperature biochar, high-temperature biochar exhibited a better adsorption capacity for E2 in aqueous solution, indicated it had a greater potential for E2 pollution control. PMID- 29019936 TI - Image-Based Analysis to Dissect Vertical Distribution and Horizontal Asymmetry of Conspecific Root System Interactions in Response to Planting Densities, Nutrients and Root Exudates in Arabidopsis thaliana. AB - Intraspecific competition is an important plant interaction that has been studied extensively aboveground, but less so belowground, due to the difficulties in accessing the root system experimentally. Recent in vivo and in situ automatic imaging advances help understand root system architecture. In this study, a portable imaging platform and a scalable transplant technique were applied to test intraspecific competition in Arabidopsis thaliana. A single green fluorescent protein labeled plant was placed in the center of a grid of different planting densities of neighboring unlabeled plants or empty spaces, into which different treatments were made to the media. The root system of the central plant showed changes in the vertical distribution with increasing neighbor density, becoming more positively kurtotic, and developing an increasing negative skew with time. Horizontal root distribution was initially asymmetric, but became more evenly circular with time, and mean direction was not affected by the presence of adjacent empty spaces as initially hypothesized. To date, this is the first study to analyze the patterns of both vertical and horizontal growth in conspecific root systems. We present a portable imaging platform with simplicity, accessibility, and scalability, to capture the dynamic interactions of plant root systems. PMID- 29019937 TI - A Critical Appraisal of Extracorporeal Photopheresis as a Treatment Modality for Acute and Chronic Graft-Versus-Host Disease. AB - Although significant advances have been made in the biologic understanding of graft-versus-host disease (GVHD) and its treatment options, GVHD remains the single most challenging obstacle to the success of allogeneic hematopoietic cell transplantation (HCT) due to high risk of disabling morbidity and mortality. Extracorporeal photopheresis (ECP) has promising effects in controlling steroid refractory GVHD, both acute and chronic, and it has been studied extensively. Its putative immunomodulatory mechanisms, while not immunosuppressive, position ECP as an attractive treatment strategy for GVHD patients who are already receiving global immunosuppression. However, ECP is relatively underutilized due in part to limited access and time commitment. Here, we review the recent findings on the ECP efficacy in both acute and chronic GVHD, primarily for steroid-refractory status, and we critically appraise its benefits. We also explore salient considerations on the optimal use of ECP in the treatment of refractory GVHD. PMID- 29019935 TI - Cardiotoxic Effects of Short-Term Doxorubicin Administration: Involvement of Connexin 43 in Calcium Impairment. AB - The use of Doxorubicin (DOXO), a potent antineoplastic agent, is limited by the development of cardiotoxicity. DOXO-induced cardiotoxicity is multifactorial, although alterations in calcium homeostasis, seem to be involved. Since even the Connexin43 (Cx43) plays a pivotal role in these two phenomena, in this study we have analyzed the effects of DOXO on Cx43 expression and localization. Damage caused by anthracyclines on cardiomyocytes is immediate after each injection, in the present study we used a short-term model of DOXO-induced cardiomyopathy. C57BL/6j female mice were randomly divided in groups and injected with DOXO (2 or 10 mg/kg i.p.) for 1-3 or 7 days once every other day. Cardiac function was assessed by Echocardiography. Sarco/endoplasmic reticulum Ca2+-ATPase (SERCAII) and phospholamban (PLB) expression were assessed by Western blot analysis, intracellular [Ca2+] were detected spectrofluorometrically by means of Fura-2 pentakis (acetoxymethyl) ester (FURA-2AM), and Cx43 and pCx43 expression and localization was analyzed by Western blot and confirmed by immunofluorescence analysis. DOXO induces impairment in Ca2+ homeostasis, already evident after a single administration, and affects Cx43 expression and localization. Our data suggest that DOXO-induced alterations in Ca2+ homeostasis causes in the cells the induction of compensatory mechanisms until a certain threshold, above which cardiac injury is triggered. PMID- 29019939 TI - Creating Affording Situations: Coaching through Animate Objects. AB - We explore the ways in which animate objects can be used to cue actions as part of coaching in Activities of Daily Living (ADL). In this case, changing the appearance or behavior of a physical object is intended to cue actions which are appropriate for a given context. The context is defined by the intention of the users, the state of the objects and the tasks for which these objects can be used. We present initial design prototypes and simple user trials which explore the impact of different cues on activity. It is shown that raising the handle of a jug, for example, not only cues the act of picking up the jug but also encourages use of the hand adjacent to the handle; that combinations of lights (on the objects) and auditory cues influence activity through reducing uncertainty; and that cueing can challenge pre-learned action sequences. We interpret these results in terms of the idea that the animate objects can be used to create affording situations, and discuss implications of this work to support relearning of ADL following brain damage or injury, such as might arise following a stroke. PMID- 29019938 TI - DMRTC2, PAX7, BRACHYURY/T and TERT Are Implicated in Male Germ Cell Development Following Curative Hormone Treatment for Cryptorchidism-Induced Infertility. AB - Defective mini-puberty results in insufficient testosterone secretion that impairs the differentiation of gonocytes into dark-type (Ad) spermatogonia. The differentiation of gonocytes into Ad spermatogonia can be induced by administration of the gonadotropin-releasing hormone agonist, GnRHa (Buserelin, INN)). Nothing is known about the mechanism that underlies successful GnRHa treatment in the germ cells. Using RNA-sequencing of testicular biopsies, we recently examined RNA profiles of testes with and without GnRHa treatment. Here, we focused on the expression patterns of known gene markers for gonocytes and spermatogonia, and found that DMRTC2, PAX7, BRACHYURY/T, and TERT were associated with defective mini-puberty and were responsive to GnRHa. These results indicate novel testosterone-dependent genes and provide valuable insight into the transcriptional response to both defective mini-puberty and curative GnRHa treatment, which prevents infertility in man with one or both undescended (cryptorchid) testes. PMID- 29019940 TI - Effects of Extremely Low Frequency Electromagnetic Fields on Melanogenesis through p-ERK and p-SAPK/JNK Pathways in Human Melanocytes. AB - This study evaluated frequency-dependent effects of extremely low frequency electromagnetic fields (ELF-EMFs) on melanogenesis by melanocytes in vitro. Melanocytes were exposed to 2 mT EMFs at 30-75 Hz for 3 days before melanogenesis was examined. Exposure to ELF-EMFs at 50 and 60 Hz induced melanogenic maturation without cell damage, without changing cell proliferation and mitochondrial activity. Melanin content and tyrosinase activity of cells exposed to 50 Hz were higher than in controls, and mRNA expression of tyrosinase-related protein-2 was elevated relative to controls at 50 Hz. Phosphorylated cyclic adenosine monophosphate response element-binding protein (p-CREB) levels were higher than controls in cells exposed to ELF-EMFs at 50-75 Hz. Immunohistochemical staining showed that melanocyte-specific markers (HMB45, Melan-A) were strongly expressed in cells exposed to EMFs at 50 and 60 Hz compared to controls. Thus, exposure to ELF-EMFs at 50 Hz could stimulate melanogenesis in melanocytes, through activation of p-CREB and p-p38 and inhibition of phosphorylated extracellular signal-regulated protein kinase and phosphorylated stress-activated protein kinase/c-Jun N-terminal kinase. The results may form the basis of an appropriate anti-gray hair treatment or be applied in a therapeutic device for inducing repigmentation in the skin of vitiligo patients. PMID- 29019943 TI - Some Hardware and Instrumentation Aspects of the Development of an Automation System for Jar Tests in Drinking Water Treatment. AB - The so-called Jar Test (JT) plays a vital role in the drinking water and wastewater treatments for establishing the dosage of flocculants and coagulant. This test is a well-proved laboratory instrumental procedure performed by trained personnel. In this work, a completely novel system for the automation and monitoring of a JT devoted to drinking water treatment is presented. It has been implemented using an industrial programmable controller and sensors and instruments specifically selected for this purpose. Once the parameters of the test have been entered, the stages that compose the JT (stirring, coagulant addition, etc.) are sequentially performed without human intervention. Moreover, all the involved measurements from sensors are collected and made accessible for continuous monitoring of the process. By means of the proposed system, the JT procedure is conducted fully automatically and can be locally and remotely monitored in real-time. Furthermore, the developed system constitutes a portable laboratory that offers advantageous features like scalability and transportability. The proposed system is described focusing on hardware and instrumentation aspects, and successful results are reported. PMID- 29019942 TI - NADPH Oxidase-Related Pathophysiology in Experimental Models of Stroke. AB - Several experimental studies have indicated that nicotinamide adenine dinucleotide phosphate (NADPH) oxidases (Nox) exert detrimental effects on ischemic brain tissue; Nox-knockout mice generally exhibit resistance to damage due to experimental stroke following middle cerebral artery occlusion (MCAO). Furthermore, our previous MCAO study indicated that infarct size and blood-brain barrier breakdown are enhanced in mice with pericyte-specific overexpression of Nox4, relative to levels observed in controls. However, it remains unclear whether Nox affects the stroke outcome directly by increasing oxidative stress at the site of ischemia, or indirectly by modifying physiological variables such as blood pressure or cerebral blood flow (CBF). Because of technical problems in the measurement of physiological variables and CBF, it is often difficult to address this issue in mouse models due to their small body size; in our previous study, we examined the effects of Nox activity on focal ischemic injury in a novel congenic rat strain: stroke-prone spontaneously hypertensive rats with loss-of function in Nox. In this review, we summarize the current literature regarding the role of Nox in focal ischemic injury and discuss critical issues that should be considered when investigating Nox-related pathophysiology in animal models of stroke. PMID- 29019941 TI - The Contribution of Adipose Tissue-Derived Mesenchymal Stem Cells and Platelet Rich Plasma to the Treatment of Chronic Equine Laminitis: A Proof of Concept. AB - Laminitis, a highly debilitating disease of the foot in ungulates, is characterized by pathological changes of the complex lamellar structures that maintain the appendicular skeleton within the hoof. Laminitis is a multifactorial disease that involves perturbation of the vascular, hematological, and inflammatory homeostasis of the foot. Interestingly, the pathogenesis of the disease resembles what is observed in metabolic syndromes and sepsis-induced organ failure in humans and animals. We hypothesized that local administration of mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) might contribute to establishing an anti-inflammatory and pro-angiogenic environment, and could stimulate the injured tissue in order to restore its functional integrity. According to this assumption, an experimental protocol based on the local intravenous administration of adipose tissue-derived MSCs (aMSCs) in combination with PRP was developed for the treatment of horses affected by chronic laminitis. Nine horses with severely compromised venograms (showing grade III and IV laminitis) that had been unsuccessfully treated with conventional therapies were enrolled. aMSCs and PRP (15 * 106 cells resuspended in 15 mL of PRP) were injected into the lateral or medial digital vein three times, at one-month intervals. The first administration was performed with allogeneic aMSCs, while for the following administrations, autologous aMSCs were used. There was no adverse short-term reaction to the intravenous injection of aMSCs. In the long term, venograms outlined, in all subjects, a progressive amelioration of the vascularization of the foot. An improvement in the structure and function of the hoof was also observed. No adverse events were reported during the follow-up, and the horses returned to a comfortable quality of life. Although the number of animals enrolled in the study is limited, both clinical observations and venography demonstrated an enhancement in the condition of all horses, suggesting that the regenerative therapies in chronic laminitis could be useful, and are worthy of further investigation. PMID- 29019944 TI - Variation and Distribution of L-A Helper Totiviruses in Saccharomyces sensu stricto Yeasts Producing Different Killer Toxins. AB - Yeasts within the Saccharomyces sensu stricto cluster can produce different killer toxins. Each toxin is encoded by a medium size (1.5-2.4 Kb) M dsRNA virus, maintained by a larger helper virus generally called L-A (4.6 Kb). Different types of L-A are found associated to specific Ms: L-A in K1 strains and L-A-2 in K2 strains. Here, we extend the analysis of L-A helper viruses to yeasts other than S. cerevisiae, namely S. paradoxus, S. uvarum and S. kudriavzevii. Our sequencing data from nine new L-A variants confirm the specific association of each toxin-producing M and its helper virus, suggesting co-evolution. Their nucleotide sequences vary from 10% to 30% and the variation seems to depend on the geographical location of the hosts, suggesting cross-species transmission between species in the same habitat. Finally, we transferred by genetic methods different killer viruses from S. paradoxus into S. cerevisiae or viruses from S. cerevisiae into S. uvarum or S. kudriavzevii. In the foster hosts, we observed no impairment for their stable transmission and maintenance, indicating that the requirements for virus amplification in these species are essentially the same. We also characterized new killer toxins from S. paradoxus and constructed "superkiller" strains expressing them. PMID- 29019946 TI - Review of Ecologically-Based Pest Management in California Vineyards. AB - Grape growers in California utilize a variety of biological, cultural, and chemical approaches for the management of insect and mite pests in vineyards. This combination of strategies falls within the integrated pest management (IPM) framework, which is considered to be the dominant pest management paradigm in vineyards. While the adoption of IPM has led to notable and significant reductions in the environmental impacts of grape production, some growers are becoming interested in the use of an explicitly non-pesticide approach to pest management that is broadly referred to as ecologically-based pest management (EBPM). Essentially a subset of IPM strategies, EBPM places strong emphasis on practices such as habitat management, natural enemy augmentation and conservation, and animal integration. Here, we summarize the range and known efficacy of EBPM practices utilized in California vineyards, followed by a discussion of research needs and future policy directions. EBPM should in no way be seen in opposition, or as an alternative to the IPM framework. Rather, the further development of more reliable EBPM practices could contribute to the robustness of IPM strategies available to grape growers. PMID- 29019945 TI - Micro and Nanostructured Materials for the Development of Optical Fibre Sensors. AB - The measurement of chemical and biomedical parameters can take advantage of the features exclusively offered by optical fibre: passive nature, electromagnetic immunity and chemical stability are some of the most relevant ones. The small dimensions of the fibre generally require that the sensing material be loaded into a supporting matrix whose morphology is adjusted at a nanometric scale. Thanks to the advances in nanotechnology new deposition methods have been developed: they allow reagents from different chemical nature to be embedded into films with a thickness always below a few microns that also show a relevant aspect ratio to ensure a high transduction interface. This review reveals some of the main techniques that are currently been employed to develop this kind of sensors, describing in detail both the resulting supporting matrices as well as the sensing materials used. The main objective is to offer a general view of the state of the art to expose the main challenges and chances that this technology is facing currently. PMID- 29019948 TI - Optimization and Characterization of the Friction Stir Welded Sheets of AA 5754 H111: Monitoring of the Quality of Joints with Thermographic Techniques. AB - Friction Stir Welding (FSW) is a solid-state welding process, based on frictional and stirring phenomena, that offers many advantages with respect to the traditional welding methods. However, several parameters can affect the quality of the produced joints. In this work, an experimental approach has been used for studying and optimizing the FSW process, applied on 5754-H111 aluminum plates. In particular, the thermal behavior of the material during the process has been investigated and two thermal indexes, the maximum temperature and the heating rate of the material, correlated to the frictional power input, were investigated for different process parameters (the travel and rotation tool speeds) configurations. Moreover, other techniques (micrographs, macrographs and destructive tensile tests) were carried out for supporting in a quantitative way the analysis of the quality of welded joints. The potential of thermographic technique has been demonstrated both for monitoring the FSW process and for predicting the quality of joints in terms of tensile strength. PMID- 29019947 TI - Trends and Comparisons of Utilization of Emergency Departments Due to Traumatic or Non-Traumatic Causes among the HIV-Positive Population in Taiwan, 2006-2011. AB - It is important that the utilization of emergency departments (EDs) among people living with the human immunodeficiency virus (HIV) be epidemiologically evaluated in order to assess and improve the HIV care continuum. All participants newly diagnosed with HIV in Taiwan registered in the National Health Insurance Database from 2000 to 2005 were enrolled in this study and followed-up from 2006 to 2011. In total, 3500 participants newly-diagnosed with HIV in 2000-2005 were selected as a fixed-cohort population and followed-up from 2006 to 2011. Overall, 704, 645, 591, 573, 578, and 568 cases made 1322, 1275, 1050, 1061, 1136, and 992 ED visits in 2006, 2007, 2008, 2009, 2010 and 2011, respectively, with an average number of ED visits ranging from 1.75 to 1.98 per person, accounting for 20.1 22.6% of the whole HIV-positive population. Fewer ED visits were due to traumatic reasons, accounting for 19.6-24.4% of all cases. The incidence of traumatic and non-traumatic ED visits among the HIV-positive participants ranged from 7.2-9.3 and 27.0-33.9 per 100 people, respectively. The average direct medical cost of traumatic and non-traumatic ED visits ranged from $89.3-112.0 and $96.6-120.0, respectively. In conclusion, a lower incidence of ED visits for all reasons and fewer ED visits owing to traumatic causes were observed in the population living with HIV in comparison with the general population; however, the direct medical cost of each ED visit owing to both traumatic and non-traumatic causes was greater among those living with HIV than in the general population. PMID- 29019949 TI - Distributed State Estimation Using a Modified Partitioned Moving Horizon Strategy for Power Systems. AB - In this paper, a distributed state estimation method based on moving horizon estimation (MHE) is proposed for the large-scale power system state estimation. The proposed method partitions the power systems into several local areas with non-overlapping states. Unlike the centralized approach where all measurements are sent to a processing center, the proposed method distributes the state estimation task to the local processing centers where local measurements are collected. Inspired by the partitioned moving horizon estimation (PMHE) algorithm, each local area solves a smaller optimization problem to estimate its own local states by using local measurements and estimated results from its neighboring areas. In contrast with PMHE, the error from the process model is ignored in our method. The proposed modified PMHE (mPMHE) approach can also take constraints on states into account during the optimization process such that the influence of the outliers can be further mitigated. Simulation results on the IEEE 14-bus and 118-bus systems verify that our method achieves comparable state estimation accuracy but with a significant reduction in the overall computation load. PMID- 29019950 TI - Computer Vision-Based Structural Displacement Measurement Robust to Light-Induced Image Degradation for In-Service Bridges. AB - The displacement responses of a civil engineering structure can provide important information regarding structural behaviors that help in assessing safety and serviceability. A displacement measurement using conventional devices, such as the linear variable differential transformer (LVDT), is challenging owing to issues related to inconvenient sensor installation that often requires additional temporary structures. A promising alternative is offered by computer vision, which typically provides a low-cost and non-contact displacement measurement that converts the movement of an object, mostly an attached marker, in the captured images into structural displacement. However, there is limited research on addressing light-induced measurement error caused by the inevitable sunlight in field-testing conditions. This study presents a computer vision-based displacement measurement approach tailored to a field-testing environment with enhanced robustness to strong sunlight. An image-processing algorithm with an adaptive region-of-interest (ROI) is proposed to reliably determine a marker's location even when the marker is indistinct due to unfavorable light. The performance of the proposed system is experimentally validated in both laboratory scale and field experiments. PMID- 29019951 TI - Chemotherapy-Related Toxicity, Nutritional Status and Quality of Life in Precachectic Oncologic Patients with, or without, High Protein Nutritional Support. A Prospective, Randomized Study. AB - BACKGROUND: Cancer disease is usually associated with impaired nutritional status, which is one of the factors contributing to deterioration of the results of surgery, chemotherapy or radiotherapy. OBJECTIVES: The aim of the study was to determine whether nutritional support with high protein (ONS) in adult oncologic patients in the first step of cancer cachexia-asymptomatic precachexia, has an influence on the toxicity of systemic therapy. However, secondary endpoints were established: to determine whether high protein ONS influences the nutritional status, the quality of life, and the performance status. MATERIALS AND METHODS: A total of 114 persons aged 40-84 years old with colorectal cancer were examined. Based on the randomization, 47 patients were qualified to the interventional group (ONS group) and 48 to Control group. To evaluate the nutritional status NRS 2002 (Nutritional Risk Screening), SGA (Subjective Global Assessment), SCRINIO (SCReenIng the Nutritional status In Oncology) Working Group classification, VAS (Visual Analog Scale) for appetite was used. FAACT (Functional Assessment of Anorexia/Cachexia Therapy) questionnaire was used for assessment of the quality of life. The health status of patients was evaluated based on the Karnofsky Performance Scale. Anthropometric measurements were done. RESULTS: Severe complications of chemotherapy, which caused the end of treatment, a slight complication of the gastrointestinal tract such as diarrhea grade 2 according to ECOG (Eastern Cooperative Oncology Group) score regardless of the studied group, were observed. There were no statistical differences in the number and severity of the observed complications, i.e., neutropenia, leucopenia, thrombocytopenia, anemia, abdominal pain, nausea and vomiting, and diarrhea. During the follow-up the significant changes of SGA, VAS, albumin and prealbumin were observed between groups. In the ONS group an improvement in nutritional status was noticed (increased appetite VAS, p = 0.05; increased points in SGA, p = 0.015, and increased levels of albumin and prealbumin, p = 0.05). In Control group nutritional status was stable during observation. The performance status and quality of life were stable in both groups. No statistical differences between groups (ONS vs. Control) in the numbers for disqualification, resignation, delay in treatment, or dose reduction were observed. CONCLUSIONS: Results of the study did not indicate that nutritional support in precachectic oncologic patients influenced the toxicity of systemic therapy. High protein nutritional support improved nutritional status assessed by SGA, VAS for appetite, albumin, and prealbumin. The performance status and quality of life were stable throughout the observation and were not changed under the supplementation. PMID- 29019953 TI - Assessment of Ionospheric Gradient Impacts on Ground-Based Augmentation System (GBAS) Data in Guangdong Province, China. AB - Ionospheric delay is one of the largest and most variable sources of error for Ground-Based Augmentation System (GBAS) users because inospheric activity is unpredictable. Under normal conditions, GBAS eliminates ionospheric delays, but during extreme ionospheric storms, GBAS users and GBAS ground facilities may experience different ionospheric delays, leading to considerable differential errors and threatening the safety of users. Therefore, ionospheric monitoring and assessment are important parts of GBAS integrity monitoring. To study the effects of the ionosphere on the GBAS of Guangdong Province, China, GPS data collected from 65 reference stations were processed using the improved "Simple Truth" algorithm. In addition, the ionospheric characteristics of Guangdong Province were calculated and an ionospheric threat model was established. Finally, we evaluated the influence of the standard deviation and maximum ionospheric gradient on GBAS. The results show that, under normal ionospheric conditions, the vertical protection level of GBAS was increased by 0.8 m for the largest over bound sigma v i g (sigma of vertical ionospheric gradient), and in the case of the maximum ionospheric gradient conditions, the differential correction error may reach 5 m. From an airworthiness perspective, when the satellite is at a low elevation, this interference does not cause airworthiness risks, but when the satellite is at a high elevation, this interference can cause airworthiness risks. PMID- 29019952 TI - Socioeconomic Differences and Trends in the Place of Death among Elderly People in China. AB - China is facing a dramatic aging of its population. Little is known about the factors that influence the place of death and the trends in the place of death for elderly people in China. The purposes of this study were: (1) to examine the impact of the socioeconomic status (SES) on place of death for elderly Chinese residents; and (2) to assess temporal trends in the place of death over the last 15 years. Data were derived from the Chinese Longitudinal Healthy Longevity Survey (CLHLS) (1998-2012). Place-of-death as an outcome was dichotomized into either death at home or death outside the home. Logistic regression analyses were used to examine the impact of SES on place of death. The results showed that, of the 23,098 deaths during the study period, 87.78% occurred at home. The overall trend in home death has increased since 2005. SES was shown to be an important factor affecting place of death. The elderly with higher SES were more likely to die where health resources were concentrated, i.e., in a hospital or other type of institution. Our finding suggests that the trend towards a greater emphasis on death at home may call for the development of more supportive home care programs in China. Our finding also suggests that the socioeconomic differences in the place of death may be related to the availability of or access to health care services. PMID- 29019955 TI - Mechanical and Electrical Noise in Sense Channel of MEMS Vibratory Gyroscopes. AB - This paper presents a theoretical analysis of mechanical and electrical noise in the sense channel of micro-electromechanical systems (MEMS) vibratory gyroscopes. Closed-form expressions for the power spectral density (PSD) of the noise equivalent rate (NER) of gyroscopes in the open-loop and the force-rebalance operations are derived by using an averaged PSD model and an equivalent transfer function. The obtained expressions are verified through numerical simulations, demonstrating close agreements between the analytic and the numerical models. Based on the derived expressions for the PSD of the NER, the impacts of the modal frequency split, quality factor, and the gain of the feedback forcer, as well as the gain of the signal conditioning circuit, on the gyroscope noise characteristics are theoretically analyzed. In addition, the angle random walk (ARW) and the standard deviation of the NER are also discussed through the PSD models. Finally, the effects of the loop closing, the mode matching, and the gain of the feedback forcer on the PSD of the NER were verified via a MEMS vibratory gyroscope with a tunable modal frequency split. PMID- 29019956 TI - Anti-Diabetic Potential of Ocimum gratissimum Leaf Fractions in Fortified Diet Fed Streptozotocin Treated Rat Model of Type-2 Diabetes. AB - Background: Ocimum gratissimum (OG) is used in the traditional management of diabetes in Nigeria. This study investigated the anti-diabetic potential of OG leaf fractions (OGLF) in a rat model of Type-2 diabetes (T2D). Method: Methanol crude extract of OG leaf was fractionated with solvents of increasing order of polarity (n-hexane, chloroform, ethyl-acetate, n-butanol and water). The anti diabetic potential of the fractions was evaluated in vivo. T2D was induced in Albino Wistar rats and treated with OGLF. Result: The T2D rats showed significant elevation in serum levels of fasting blood glucose (FBG), liver and kidney function biomarkers. At 4-weeks of intervention with OGLF, the untreated diabetic control group maintained severe hyperglycaemia in the presence of 61.7% serum insulin, 17.3% pancreatic beta-cell function (HOMA-beta) and 51.5% Insulin sensitivity. The glucose tolerance ability was enhanced in the n-butanol-fraction (OGb) treated group. With 74.8% available serum insulin and 38.6% improvement in insulin sensitivity, the OGb treated group had a 63.5% reduction in FBG and it was found to be most effective as it ameliorates a majority of the changes caused in the studied parameters in diabetic rats. Conclusions: The data from this study suggest that OGb fraction is a potential candidate for the development of an effective drug for the management of T2D. PMID- 29019954 TI - Weight Loss in Advanced Chronic Kidney Disease: Should We Consider Individualised, Qualitative, ad Libitum Diets? A Narrative Review and Case Study. AB - In advanced chronic kidney disease, obesity may bring a survival advantage, but many transplant centres demand weight loss before wait-listing for kidney graft. The case here described regards a 71-year-old man, with obesity-related glomerulopathy; referral data were: weight 110 kg, Body Mass Index (BMI) 37 kg/m2, serum creatinine (sCr) 5 mg/dL, estimated glomerular filtration rate (eGFR) 23 mL/min, blood urea nitrogen (BUN) 75 mg/dL, proteinuria 2.3 g/day. A moderately restricted, low-protein diet allowed reduction in BUN (45-55 mg/dL) and good metabolic and kidney function stability, with a weight increase of 6 kg. Therefore, he asked to be enrolled in a weight-loss program to be wait-listed (the two nearest transplant centres required a BMI below 30 or 35 kg/m2). Since previous low-calorie diets were not successful and he was against a surgical approach, we chose a qualitative, ad libitum coach-assisted diet, freely available in our unit. In the first phase, the diet is dissociated; he lost 16 kg in 2 months, without need for dialysis. In the second maintenance phase, in which foods are progressively combined, he lost 4 kg in 5 months, allowing wait listing. Dialysis started one year later, and was followed by weight gain of about 5 kg. He resumed the maintenance diet, and his current body weight, 35 months after the start of the diet, is 94 kg, with a BMI of 31.7 kg/m2, without clinical or biochemical signs of malnutrition. This case suggests that our patients can benefit from the same options available to non-CKD (chronic kidney disease) individuals, provided that strict multidisciplinary surveillance is assured. PMID- 29019957 TI - Application of Multilayer Perceptron with Automatic Relevance Determination on Weed Mapping Using UAV Multispectral Imagery. AB - Remote sensing techniques are routinely used in plant species discrimination and of weed mapping. In the presented work, successful Silybum marianum detection and mapping using multilayer neural networks is demonstrated. A multispectral camera (green-red-near infrared) attached on a fixed wing unmanned aerial vehicle (UAV) was utilized for the acquisition of high-resolution images (0.1 m resolution). The Multilayer Perceptron with Automatic Relevance Determination (MLP-ARD) was used to identify the S. marianum among other vegetation, mostly Avena sterilis L. The three spectral bands of Red, Green, Near Infrared (NIR) and the texture layer resulting from local variance were used as input. The S. marianum identification rates using MLP-ARD reached an accuracy of 99.54%. Tauhe study had an one year duration, meaning that the results are specific, although the accuracy shows the interesting potential of S. marianum mapping with MLP-ARD on multispectral UAV imagery. PMID- 29019958 TI - Laser-Based Lighting: Experimental Analysis and Perspectives. AB - This paper presents an extensive analysis of the operating principles, theoretical background, advantages and limitations of laser-based lighting systems. In the first part of the paper we discuss the main advantages and issues of laser-based lighting, and present a comparison with conventional LED-lighting technology. In the second part of the paper, we present original experimental data on the stability and reliability of phosphor layers for laser lighting, based on high light-intensity and high-temperature degradation tests. In the third part of the paper (for the first time) we present a detailed comparison between three different solutions for laser lighting, based on (i) transmissive phosphor layers; (ii) a reflective/angled phosphor layer; and (iii) a parabolic reflector, by discussing the advantages and drawbacks of each approach. The results presented within this paper can be used as a guideline for the development of advanced lighting systems based on laser diodes. PMID- 29019959 TI - Recent Advances in Nanoparticle Concentration and Their Application in Viral Detection Using Integrated Sensors. AB - Early disease diagnostics require rapid, sensitive, and selective detection methods for target analytes. Specifically, early viral detection in a point-of care setting is critical in preventing epidemics and the spread of disease. However, conventional methods such as enzyme-linked immunosorbent assays or cell cultures are cumbersome and difficult for field use due to the requirements of extensive lab equipment and highly trained personnel, as well as limited sensitivity. Recent advances in nanoparticle concentration have given rise to many novel detection methodologies, which address the shortcomings in modern clinical assays. Here, we review the primary, well-characterized methods for nanoparticle concentration in the context of viral detection via diffusion, centrifugation and microfiltration, electric and magnetic fields, and nano microfluidics. Details of the concentration mechanisms and examples of related applications provide valuable information to design portable, integrated sensors. This study reviews a wide range of concentration techniques and compares their advantages and disadvantages with respect to viral particle detection. We conclude by highlighting selected concentration methods and devices for next generation biosensing systems. PMID- 29019960 TI - Molecular Insights into the Potential Insecticidal Interaction of beta Dihydroagarofuran Derivatives with the H Subunit of V-ATPase. AB - Celangulin V (CV), one of dihydroagarofuran sesquiterpene polyesters isolated from Chinese bittersweet (Celastrus angulatus Maxim), is famous natural botanical insecticide. Decades of research suggests that is displays excellent insecticidal activity against some insects, such as Mythimna separata Walker. Recently, it has been validated that the H subunit of V-ATPase is one of the target proteins of the insecticidal dihydroagarofuran sesquiterpene polyesters. As a continuation of the development of new pesticides from these natural products, a series of beta dihydroagarofuran derivatives have been designed and synthesized. The compound JW 3, an insecticidal derivative of CV with a p-fluorobenzyl group, exhibits higher insecticidal activity than CV. In this study, the potential inhibitory effect aused by the interaction of JW-3 with the H subunit of V-ATPase c was verified by confirmatory experiments at the molecular level. Both spectroscopic techniques and isothermal titration calorimetry measurements showed the binding of JW-3 to the subunit H of V-ATPase was specific and spontaneous. In addition, the possible mechanism of action of the compound was discussed. Docking results indicated compound JW-3 could bind well in 'the interdomain cleft' of the V-ATPase subunit H by the hydrogen bonding and make conformation of the ligand-protein complex become more stable. All results are the further validations of the hypothesis, that the target protein of insecticidal dihydroagarofuran sesquiterpene polyesters and their beta-dihydroagarofuran derivatives is the subunit H of V ATPase. The results also provide new ideas for developing pesticides acting on V ATPase of insects. PMID- 29019961 TI - The Role of the Social Network in Access to Psychosocial Services for Migrant Elderly-A Qualitative Study. AB - Abstract:Background: Despite high prevalence of mental problems among elderly migrants in The Netherlands, the use of psychosocial care services by this group is low. Scientific evidence points at the crucial role of social support for mental health and the use of psychosocial services. We therefore explored the role of social networks in the access to psychosocial care among elderly migrants in The Netherlands. Methods: A qualitative study was conducted using semi structured group interviews and individual interviews. The eight group and eleven individual interviews (respectively n = 58 and n = 11) were conducted in The Netherlands with Turkish, Moroccan, Surinamese, and Dutch elderly. The data were analysed through coding and comparing fragments and recognizing patterns. Results: Support of the social network is important to navigate to psychosocial care and is most frequently provided by children. However, the social network of elderly migrants is generally not able to meet the needs of the elderly. This is mostly due to poor mental health literacy of the social network, taboo, and stigma around mental illness and the busy lives of the social network members. Conclusions: Strategies to address help-seeking barriers should consider mental health literacy in elderly migrants as well as their social networks, and counteract taboos and stigma of mental health problems. PMID- 29019962 TI - The Modular Optical Underwater Survey System. AB - The Pacific Islands Fisheries Science Center deploys the Modular Optical Underwater Survey System (MOUSS) to estimate the species-specific, size structured abundance of commercially-important fish species in Hawaii and the Pacific Islands. The MOUSS is an autonomous stereo-video camera system designed for the in situ visual sampling of fish assemblages. This system is rated to 500 m and its low-light, stereo-video cameras enable identification, counting, and sizing of individuals at a range of 0.5-10 m. The modular nature of MOUSS allows for the efficient and cost-effective use of various imaging sensors, power systems, and deployment platforms. The MOUSS is in use for surveys in Hawaii, the Gulf of Mexico, and Southern California. In Hawaiian waters, the system can effectively identify individuals to a depth of 250 m using only ambient light. In this paper, we describe the MOUSS's application in fisheries research, including the design, calibration, analysis techniques, and deployment mechanism. PMID- 29019963 TI - Organ-on-Chip Technology: Current State and Future Developments. AB - In the early days of pharmacy, the development of new drugs was frequently achieved by restless chemists who worked solitarily, day by day for years [...]. PMID- 29019964 TI - Building IoT Services for Aging in Place Using Standard-Based IoT Platforms and Heterogeneous IoT Products. AB - An aging population and human longevity is a global trend. Many developed countries are struggling with the yearly increasing healthcare cost that dominantly affects their economy. At the same time, people living with old adults suffering from a progressive brain disorder such as Alzheimer's disease are enduring even more stress and depression than those patients while caring for them. Accordingly, seniors' ability to live independently and comfortably in their current home for as long as possible has been crucial to reduce the societal cost for caregiving and thus give family members peace of mind, called 'aging in place' (AIP). In this paper we present a way of building AIP services using standard-based IoT platforms and heterogeneous IoT products. An AIP service platform is designed and created by combining previous standard-based IoT platforms in a collaborative way. A service composition tool is also created that allows people to create AIP services in an efficient way. To show practical usability of our proposed system, we choose a service scenario for medication compliance and implement a prototype service which could give old adults medication reminder appropriately at the right time (i.e., when it is time to need to take pills) through light and speaker at home but also wrist band and smartphone even outside the home. PMID- 29019967 TI - Fatty liver disease: turning the tide. PMID- 29019965 TI - Molecular Cloning, Recombinant Expression and Antifungal Activity of BnCPI, a Cystatin in Ramie (Boehmeria nivea L.). AB - Phytocystatins play multiple roles in plant growth, development and resistance to pests and other environmental stresses. A ramie (Boehmeria nivea L.) phytocystatin gene, designated as BnCPI, was isolated from a ramie cDNA library and its full-length cDNA was obtained by rapid amplification of cDNA ends (RACE). The full-length cDNA sequence (691 bp) consisted of a 303 bp open reading frame (ORF) encoding a protein of 100 amino acids with deduced molecular mass of 11.06 kDa and a theoretical isoelectric point (pI) of 6.0. The alignment of genome DNA (accession no. MF153097) and cDNA sequences of BnCPI showed that an intron (~104 bp) exists in the coding region. The BnCPI protein contains most of the highly conserved blocks including Gly5-Gly6 at the N-terminal, the reactive site motif QxVxG (Q49V50V51S52G53), the L79-W80 block and the [LVI]-[AGT]-[RKE]-[FY]-[AS] [VI]-x-[EDQV]-[HYFQ]-N (L22G23R24 F25A26V27 D28D29H30 N31) block that is common among plant cystatins. BLAST analysis indicated that BnCPI is similar to cystatins from Glycine max (77%), Glycine soja (76%), Hevea brasiliensis (75%) and Ricinus communis (75%). The BnCPI was subcloned into expression vector pSmart I and then overexpressed in Escherichia coli BL21 (DE3) as a His-tagged recombinant protein. The purified reBnCPI has a molecular mass of 11.4 kDa determined by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS PAGE). Purified reBnCPI can efficiently inhibit the protease activity of papain and ficin toward BANA (Nalpha-benzoyl-L-arginine-2-naphthyamide), as well as the mycelium growth of some important plant pathogenic fungi. The data further contribute to our understanding of the molecular functions of BnCPI. PMID- 29019966 TI - Transthoracic Balloon Pulmonary Valvuloplasty for Treatment of Congenial Pulmonary Atresia Patients with Intact Ventricular Septum. AB - BACKGROUND To summarize our clinical experience in performing transthoracic balloon pulmonary valvuloplasty for the treatment of patients suffering from congenial pulmonary atresia with intact ventricular septum (PA/IVS). MATERIAL AND METHODS Between April 2009 and April 2016, 38 patients with PA/IVS underwent transthoracic balloon pulmonary valvuloplasty in our hospital. All of them were combined with patent ductus arteriosus, tricuspid insufficiency, and atrial septal defect or patent foramen ovale. The valvuloplasty was performed from the right ventricular outflow tract through a median sternotomy incision under TEE guidance for all cases. RESULTS Thirty-five patients were successfully discharged, and 3 patients died after the operation. The 35 surviving patients were followed up. Spo2 in the 35 patients was 88-96% after the operation. The transpulmonary valvular gradient pressure was less than or equal to 30 mmHg in 31 patients and between 36 and 52 mmHg in the other 4 patients. After the surgery, tricuspid regurgitation was significantly reduced. We found only 4 patients with moderate regurgitation, 5 patients with mild to moderate regurgitation, and mild regurgitation in the remaining 26 patients. Five patients underwent a second stage operation, including biventricular repair in 4 patients and ligation of ductus arteriosus in 1 patient. CONCLUSIONS The application of transthoracic balloon pulmonary valvuloplasty for the treatment of PA/IVS is minimally invasive and safe, which has great significance for improving the curative effect for this condition and reducing operation mortality. PMID- 29019968 TI - Fighting the fatty liver. PMID- 29019970 TI - Emissions: We have the technology. PMID- 29019972 TI - Policy: Getting political. PMID- 29019971 TI - The real climate debate. PMID- 29019969 TI - Sea change. PMID- 29019973 TI - Climate change. PMID- 29019974 TI - The state of the art in stem cell biology and regenerative medicine: the end of the beginning. AB - With translational stem cell biology and Regenerative Medicine (the field to which the former gave rise) now over a quarter century old, it is time to take stock of where we have been and where we are going. This editorial overview, which serves as an introduction to this special issue of Pediatric Research dedicated to these fields, reinforces the notion that stem cells are ultimately intrinsic parts of developmental biology, for which Pediatrics represents the clinical face. Although stem cells provide the cellular basis for a great deal of only recently recognized plasticity programmed into the developing and postdevelopmental organism, and although there is enormous promise in harnessing this plasticity for therapeutic advantage, their successful use rests on a deep understanding of their developmental imperatives and the developmental programs in which they engage. The potential uses of stems are ranked and discussed in the order of most readily achievable to those requiring extensively more work. Although that order may not be what was contemplated at the field's birth, we nevertheless retain an optimism for the ultimate positive impact of exploiting this fundamental biology for the well-being of children. PMID- 29019977 TI - Neurobiology: Domains to the rescue for Rett syndrome. PMID- 29019976 TI - Nucleosome-Chd1 structure and implications for chromatin remodelling. AB - Chromatin-remodelling factors change nucleosome positioning and facilitate DNA transcription, replication, and repair. The conserved remodelling factor chromodomain-helicase-DNA binding protein 1(Chd1) can shift nucleosomes and induce regular nucleosome spacing. Chd1 is required for the passage of RNA polymerase IIthrough nucleosomes and for cellular pluripotency. Chd1 contains the DNA-binding domains SANT and SLIDE, a bilobal motor domain that hydrolyses ATP, and a regulatory double chromodomain. Here we report the cryo-electron microscopy structure of Chd1 from the yeast Saccharomyces cerevisiae bound to a nucleosome at a resolution of 4.8 A. Chd1 detaches two turns of DNA from the histone octamer and binds between the two DNA gyres in a state poised for catalysis. The SANT and SLIDE domains contact detached DNA around superhelical location (SHL) -7 of the first DNA gyre. The ATPase motor binds the second DNA gyre at SHL +2 and is anchored to the N-terminal tail of histone H4, as seen in a recent nucleosome Snf2 ATPase structure. Comparisons with published results reveal that the double chromodomain swings towards nucleosomal DNA at SHL +1, resulting in ATPase closure. The ATPase can then promote translocation of DNA towards the nucleosome dyad, thereby loosening the first DNA gyre and remodelling the nucleosome. Translocation may involve ratcheting of the two lobes of the ATPase, which is trapped in a pre- or post-translocation state in the absence or presence, respectively, of transition state-mimicking compounds. PMID- 29019978 TI - The prevalence of Plasmodium falciparum in sub-Saharan Africa since 1900. AB - Malaria transmission is influenced by climate, land use and deliberate interventions. Recent declines have been observed in malaria transmission. Here we show that the African continent has witnessed a long-term decline in the prevalence of Plasmodium falciparum from 40% prevalence in the period 1900-1929 to 24% prevalence in the period 2010-2015, a trend that has been interrupted by periods of rapidly increasing or decreasing transmission. The cycles and trend over the past 115 years are inconsistent with explanations in terms of climate or deliberate intervention alone. Previous global initiatives have had minor impacts on malaria transmission, and a historically unprecedented decline has been observed since 2000. However, there has been little change in the high transmission belt that covers large parts of West and Central Africa. Previous efforts to model the changing patterns of P. falciparum transmission intensity in Africa have been limited to the past 15 years or have used maps drawn from historical expert opinions. We provide quantitative data, from 50,424 surveys at 36,966 geocoded locations, that covers 115 years of malaria history in sub Saharan Africa; inferring from these data to future trends, we would expect continued reductions in malaria transmission, punctuated with resurgences. PMID- 29019979 TI - Cryo-electron microscopy structure of the lysosomal calcium-permeable channel TRPML3. AB - The modulation of ion channel activity by lipids is increasingly recognized as a fundamental component of cellular signalling. The transient receptor potential mucolipin (TRPML) channel family belongs to the TRP superfamily and is composed of three members: TRPML1-TRPML3. TRPMLs are the major Ca2+-permeable channels on late endosomes and lysosomes (LEL). They regulate the release of Ca2+ from organelles, which is important for various physiological processes, including organelle trafficking and fusion. Loss-of-function mutations in the MCOLN1 gene, which encodes TRPML1, cause the neurodegenerative lysosomal storage disorder mucolipidosis type IV, and a gain-of-function mutation (Ala419Pro) in TRPML3 gives rise to the varitint-waddler (Va) mouse phenotype. Notably, TRPML channels are activated by the low-abundance and LEL-enriched signalling lipid phosphatidylinositol-3,5-bisphosphate (PtdIns(3,5)P2), whereas other phosphoinositides such as PtdIns(4,5)P2, which is enriched in plasma membranes, inhibit TRPMLs. Conserved basic residues at the N terminus of the channel are important for activation by PtdIns(3,5)P2 and inhibition by PtdIns(4,5)P2. However, owing to a lack of structural information, the mechanism by which TRPML channels recognize PtdIns(3,5)P2 and increase their Ca2+ conductance remains unclear. Here we present the cryo-electron microscopy (cryo-EM) structure of a full-length TRPML3 channel from the common marmoset (Callithrix jacchus) at an overall resolution of 2.9 A. Our structure reveals not only the molecular basis of ion conduction but also the unique architecture of TRPMLs, wherein the voltage sensor-like domain is linked to the pore via a cytosolic domain that we term the mucolipin domain. Combined with functional studies, these data suggest that the mucolipin domain is responsible for PtdIns(3,5)P2 binding and subsequent channel activation, and that it acts as a 'gating pulley' for lipid-dependent TRPML gating. PMID- 29019975 TI - Enhancing GTEx by bridging the gaps between genotype, gene expression, and disease. AB - Genetic variants have been associated with myriad molecular phenotypes that provide new insight into the range of mechanisms underlying genetic traits and diseases. Identifying any particular genetic variant's cascade of effects, from molecule to individual, requires assaying multiple layers of molecular complexity. We introduce the Enhancing GTEx (eGTEx) project that extends the GTEx project to combine gene expression with additional intermediate molecular measurements on the same tissues to provide a resource for studying how genetic differences cascade through molecular phenotypes to impact human health. PMID- 29019980 TI - Radically truncated MeCP2 rescues Rett syndrome-like neurological defects. AB - Heterozygous mutations in the X-linked MECP2 gene cause the neurological disorder Rett syndrome. The methyl-CpG-binding protein 2 (MeCP2) protein is an epigenetic reader whose binding to chromatin primarily depends on 5-methylcytosine. Functionally, MeCP2 has been implicated in several cellular processes on the basis of its reported interaction with more than 40 binding partners, including transcriptional co-repressors (for example, the NCoR/SMRT complex), transcriptional activators, RNA, chromatin remodellers, microRNA-processing proteins and splicing factors. Accordingly, MeCP2 has been cast as a multi functional hub that integrates diverse processes that are essential in mature neurons. At odds with the concept of broad functionality, missense mutations that cause Rett syndrome are concentrated in two discrete clusters coinciding with interaction sites for partner macromolecules: the methyl-CpG binding domain and the NCoR/SMRT interaction domain. Here we test the hypothesis that the single dominant function of MeCP2 is to physically connect DNA with the NCoR/SMRT complex, by removing almost all amino-acid sequences except the methyl-CpG binding and NCoR/SMRT interaction domains. We find that mice expressing truncated MeCP2 lacking both the N- and C-terminal regions (approximately half of the native protein) are phenotypically near-normal; and those expressing a minimal MeCP2 additionally lacking a central domain survive for over one year with only mild symptoms. This minimal protein is able to prevent or reverse neurological symptoms when introduced into MeCP2-deficient mice by genetic activation or virus mediated delivery to the brain. Thus, despite evolutionary conservation of the entire MeCP2 protein sequence, the DNA and co-repressor binding domains alone are sufficient to avoid Rett syndrome-like defects and may therefore have therapeutic utility. PMID- 29019981 TI - Structure of mammalian endolysosomal TRPML1 channel in nanodiscs. AB - Transient receptor potential mucolipin 1 (TRPML1) is a cation channel located within endosomal and lysosomal membranes. Ubiquitously expressed in mammalian cells, its loss-of-function mutations are the direct cause of type IV mucolipidosis, an autosomal recessive lysosomal storage disease. Here we present the single-particle electron cryo-microscopy structure of the mouse TRPML1 channel embedded in nanodiscs. Combined with mutagenesis analysis, the TRPML1 structure reveals that phosphatidylinositol-3,5-bisphosphate (PtdIns(3,5)P2) binds to the N terminus of the channel-distal from the pore-and the helix-turn helix extension between segments S2 and S3 probably couples ligand binding to pore opening. The tightly packed selectivity filter contains multiple ion-binding sites, and the conserved acidic residues form the luminal Ca2+-blocking site that confers luminal pH and Ca2+ modulation on channel conductance. A luminal linker domain forms a fenestrated canopy atop the channel, providing several luminal ion passages to the pore and creating a negative electrostatic trap, with a preference for divalent cations, at the luminal entrance. The structure also reveals two equally distributed S4-S5 linker conformations in the closed channel, suggesting an S4-S5 linker-mediated PtdInsP2 gating mechanism among TRPML channels. PMID- 29019982 TI - Structural phase transition in monolayer MoTe2 driven by electrostatic doping. AB - Monolayers of transition-metal dichalcogenides (TMDs) exhibit numerous crystal phases with distinct structures, symmetries and physical properties. Exploring the physics of transitions between these different structural phases in two dimensions may provide a means of switching material properties, with implications for potential applications. Structural phase transitions in TMDs have so far been induced by thermal or chemical means; purely electrostatic control over crystal phases through electrostatic doping was recently proposed as a theoretical possibility, but has not yet been realized. Here we report the experimental demonstration of an electrostatic-doping-driven phase transition between the hexagonal and monoclinic phases of monolayer molybdenum ditelluride (MoTe2). We find that the phase transition shows a hysteretic loop in Raman spectra, and can be reversed by increasing or decreasing the gate voltage. We also combine second-harmonic generation spectroscopy with polarization-resolved Raman spectroscopy to show that the induced monoclinic phase preserves the crystal orientation of the original hexagonal phase. Moreover, this structural phase transition occurs simultaneously across the whole sample. This electrostatic-doping control of structural phase transition opens up new possibilities for developing phase-change devices based on atomically thin membranes. PMID- 29019983 TI - Human TRPML1 channel structures in open and closed conformations. AB - Transient receptor potential mucolipin 1 (TRPML1) is a Ca2+-releasing cation channel that mediates the calcium signalling and homeostasis of lysosomes. Mutations in TRPML1 lead to mucolipidosis type IV, a severe lysosomal storage disorder. Here we report two electron cryo-microscopy structures of full-length human TRPML1: a 3.72-A apo structure at pH 7.0 in the closed state, and a 3.49-A agonist-bound structure at pH 6.0 in an open state. Several aromatic and hydrophobic residues in pore helix 1, helices S5 and S6, and helix S6 of a neighbouring subunit, form a hydrophobic cavity to house the agonist, suggesting a distinct agonist-binding site from that found in TRPV1, a TRP channel from a different subfamily. The opening of TRPML1 is associated with distinct dilations of its lower gate together with a slight structural movement of pore helix 1. Our work reveals the regulatory mechanism of TRPML channels, facilitates better understanding of TRP channel activation, and provides insights into the molecular basis of mucolipidosis type IV pathogenesis. PMID- 29019986 TI - Cancer development: Origins in the oesophagus. PMID- 29019984 TI - Transitional basal cells at the squamous-columnar junction generate Barrett's oesophagus. AB - In several organ systems, the transitional zone between different types of epithelium is a hotspot for pre-neoplastic metaplasia and malignancy, but the cells of origin for these metaplastic epithelia and subsequent malignancies remain unknown. In the case of Barrett's oesophagus, intestinal metaplasia occurs at the gastro-oesophageal junction, where stratified squamous epithelium transitions into simple columnar cells. On the basis of a number of experimental models, several alternative cell types have been proposed as the source of this metaplasia but in all cases the evidence is inconclusive: no model completely mimics Barrett's oesophagus in terms of the presence of intestinal goblet cells. Here we describe a transitional columnar epithelium with distinct basal progenitor cells (p63+KRT5+KRT7+) at the squamous-columnar junction of the upper gastrointestinal tract in a mouse model. We use multiple models and lineage tracing strategies to show that this squamous-columnar junction basal cell population serves as a source of progenitors for the transitional epithelium. On ectopic expression of CDX2, these transitional basal progenitors differentiate into intestinal-like epithelium (including goblet cells) and thereby reproduce Barrett's metaplasia. A similar transitional columnar epithelium is present at the transitional zones of other mouse tissues (including the anorectal junction) as well as in the gastro-oesophageal junction in the human gut. Acid reflux induced oesophagitis and the multilayered epithelium (believed to be a precursor of Barrett's oesophagus) are both characterized by the expansion of the transitional basal progenitor cells. Our findings reveal a previously unidentified transitional zone in the epithelium of the upper gastrointestinal tract and provide evidence that the p63+KRT5+KRT7+ basal cells in this zone are the cells of origin for multi-layered epithelium and Barrett's oesophagus. PMID- 29019988 TI - Mosaic mice ace functional genomics. PMID- 29019989 TI - A successful founder off the beaten path. PMID- 29019990 TI - Genetics of a hardy crop. PMID- 29019991 TI - Scientists need data visualization training. PMID- 29019985 TI - DNA sequencing at 40: past, present and future. AB - This review commemorates the 40th anniversary of DNA sequencing, a period in which we have already witnessed multiple technological revolutions and a growth in scale from a few kilobases to the first human genome, and now to millions of human and a myriad of other genomes. DNA sequencing has been extensively and creatively repurposed, including as a 'counter' for a vast range of molecular phenomena. We predict that in the long view of history, the impact of DNA sequencing will be on a par with that of the microscope. PMID- 29019993 TI - The key to unlocking CARs. PMID- 29019992 TI - The grand challenge of cellulosic biofuels. PMID- 29019995 TI - Epic $12 billion deal and FDA's approval raise CAR-T to new heights. PMID- 29019987 TI - Establishment of mouse expanded potential stem cells. AB - Mouse embryonic stem cells derived from the epiblast contribute to the somatic lineages and the germline but are excluded from the extra-embryonic tissues that are derived from the trophectoderm and the primitive endoderm upon reintroduction to the blastocyst. Here we report that cultures of expanded potential stem cells can be established from individual eight-cell blastomeres, and by direct conversion of mouse embryonic stem cells and induced pluripotent stem cells. Remarkably, a single expanded potential stem cell can contribute both to the embryo proper and to the trophectoderm lineages in a chimaera assay. Bona fide trophoblast stem cell lines and extra-embryonic endoderm stem cells can be directly derived from expanded potential stem cells in vitro. Molecular analyses of the epigenome and single-cell transcriptome reveal enrichment for blastomere specific signature and a dynamic DNA methylome in expanded potential stem cells. The generation of mouse expanded potential stem cells highlights the feasibility of establishing expanded potential stem cells for other mammalian species. PMID- 29019996 TI - Speed and oversight: FDA Commissioner Gottlieb acts on pledges. PMID- 29019997 TI - Recent patents related to the manufacture and repair of organs and organoids. PMID- 29019999 TI - The Supreme Court's interpretation of the biosimilars statute and the value of certainty. PMID- 29020000 TI - GM moths with autocidal gene tested outdoors in New York state. PMID- 29020001 TI - 23andMe wades further into drug discovery. PMID- 29020003 TI - Around the world in a month. PMID- 29020002 TI - First metabolic oncology inhibitor gets FDA green light, with record price tag. PMID- 29020004 TI - iML1515, a knowledgebase that computes Escherichia coli traits. PMID- 29020006 TI - Surge in insect resistance to transgenic crops and prospects for sustainability. AB - Transgenic crops have revolutionized insect pest control, but their effectiveness has been reduced by evolution of resistance in pests. We analyzed global monitoring data reported during the first two decades of transgenic crops, with each case representing the responses of one pest species in one country to one insecticidal protein from Bacillus thuringiensis (Bt). The cases of pest resistance to Bt crystalline (Cry) proteins produced by transgenic crops increased from 3 in 2005 to 16 in 2016. By contrast, in 17 other cases there was no decrease in pest susceptibility to Bt crops, including the recently introduced transgenic corn that produces a Bt vegetative insecticidal protein (Vip). Recessive inheritance of pest resistance has favored sustained susceptibility, but even when inheritance is not recessive, abundant refuges of non-Bt host plants have substantially delayed resistance. These insights may inform resistance management strategies to increase the durability of current and future transgenic crops. PMID- 29020005 TI - Antigen receptor repertoire profiling from RNA-seq data. PMID- 29020007 TI - Novartis trial validates inflammasome as chronic disease driver. PMID- 29020008 TI - Effect of statin on progression of symptomatic basilar artery stenosis and subsequent ischemic stroke. AB - BACKGROUND AND OBJECTIVE: Symptomatic basilar artery stenosis (BAS) is associated with high risk of ischemic stroke recurrence. We aimed to investigate whether statin therapy might prevent the progression of symptomatic BAS and stroke recurrence. METHODS: We retrospectively analyzed the data of patients with acute ischemia with symptomatic BAS, which was assessed using magnetic resonance angiogram (MRA) imaging on admission day, and 1 year later (or the day of the clinical event). The clinical endpoints were recurrent ischemic stroke and its composites, transient ischemic attack, coronary disease, and vascular death. RESULTS: Of the 153 patients with symptomatic BAS, 114 (74.5%) were treated with a statin after experiencing a stroke. Statin therapy significantly prevented the progression of symptomatic BAS (7.0% vs 28.2%) and induced regression (22.8% vs 15.4%) compared to non-statin users (p = 0.002). There were 31 ischemic stroke incidences and 38 composite vascular events. Statin users showed significantly lower stroke recurrence (14.9% vs 35.9%, p = 0.05) and composite vascular events (17.5% vs 46.2%; odds ratio [OR], 0.29; 95% confidence interval [CI], 0.13-0.64) than those not using statins did. Recurrent stroke in the basilar territory and composite vascular events were more common in patients with progression of BAS than they were in other patients (OR, 5.16; 95% CI, 1.63-16.25 vs OR, 4.2; 95% CI, 1.56-11.34). CONCLUSION: Our study suggests that statin therapy may prevent the progression of symptomatic BAS and decrease the risk of subsequent ischemic stroke. Large randomized trials are needed to confirm this result. PMID- 29020010 TI - Assay optimisation and technology transfer for multi-site immuno-monitoring in vaccine trials. AB - Cellular immunological assays are important tools for the monitoring of responses to T-cell-inducing vaccine candidates. As these bioassays are often technically complex and require considerable experience, careful technology transfer between laboratories is critical if high quality, reproducible data that allows comparison between sites, is to be generated. The aim of this study, funded by the European Union Framework Program 7-funded TRANSVAC project, was to optimise Standard Operating Procedures and the technology transfer process to maximise the reproducibility of three bioassays for interferon-gamma responses: enzyme-linked immunosorbent assay (ELISA), ex-vivo enzyme-linked immunospot and intracellular cytokine staining. We found that the initial variability in results generated across three different laboratories reduced following a combination of Standard Operating Procedure harmonisation and the undertaking of side-by-side training sessions in which assay operators performed each assay in the presence of an assay 'lead' operator. Mean inter-site coefficients of variance reduced following this training session when compared with the pre-training values, most notably for the ELISA assay. There was a trend for increased inter-site variability at lower response magnitudes for the ELISA and intracellular cytokine staining assays. In conclusion, we recommend that on-site operator training is an essential component of the assay technology transfer process and combined with harmonised Standard Operating Procedures will improve the quality, reproducibility and comparability of data produced across different laboratories. These data may be helpful in ongoing discussions of the potential risk/benefit of centralised immunological assay strategies for large clinical trials versus decentralised units. PMID- 29020009 TI - Genome sequences of lower Great Lakes Microcystis sp. reveal strain-specific genes that are present and expressed in western Lake Erie blooms. AB - Blooms of the potentially toxic cyanobacterium Microcystis are increasing worldwide. In the Laurentian Great Lakes they pose major socioeconomic, ecological, and human health threats, particularly in western Lake Erie. However, the interpretation of "omics" data is constrained by the highly variable genome of Microcystis and the small number of reference genome sequences from strains isolated from the Great Lakes. To address this, we sequenced two Microcystis isolates from Lake Erie (Microcystis aeruginosa LE3 and M. wesenbergii LE013-01) and one from upstream Lake St. Clair (M. cf aeruginosa LSC13-02), and compared these data to the genomes of seventeen Microcystis spp. from across the globe as well as one metagenome and seven metatranscriptomes from a 2014 Lake Erie Microcystis bloom. For the publically available strains analyzed, the core genome is ~1900 genes, representing ~11% of total genes in the pan-genome and ~45% of each strain's genome. The flexible genome content was related to Microcystis subclades defined by phylogenetic analysis of both housekeeping genes and total core genes. To our knowledge this is the first evidence that the flexible genome is linked to the core genome of the Microcystis species complex. The majority of strain-specific genes were present and expressed in bloom communities in Lake Erie. Roughly 8% of these genes from the lower Great Lakes are involved in genome plasticity (rapid gain, loss, or rearrangement of genes) and resistance to foreign genetic elements (such as CRISPR-Cas systems). Intriguingly, strain specific genes from Microcystis cultured from around the world were also present and expressed in the Lake Erie blooms, suggesting that the Microcystis pangenome is truly global. The presence and expression of flexible genes, including strain specific genes, suggests that strain-level genomic diversity may be important in maintaining Microcystis abundance during bloom events. PMID- 29020011 TI - A microfluidic renal proximal tubule with active reabsorptive function. AB - In the kidney, the renal proximal tubule (PT) reabsorbs solutes into the peritubular capillaries through active transport. Here, we replicate this reabsorptive function in vitro by engineering a microfluidic PT. The microfluidic PT architecture comprises a porous membrane with user-defined submicron surface topography separating two microchannels representing a PT filtrate lumen and a peritubular capillary lumen. Human PT epithelial cells and microvascular endothelial cells in respective microchannels created a PT-like reabsorptive barrier. Co-culturing epithelial and endothelial cells in the microfluidic architecture enhanced viability, metabolic activity, and compactness of the epithelial layer. The resulting tissue expressed tight junctions, kidney-specific morphology, and polarized expression of kidney markers. The microfluidic PT actively performed sodium-coupled glucose transport, which could be modulated by administration of a sodium-transport inhibiting drug. The microfluidic PT reproduces human physiology at the cellular and tissue levels, and measurable tissue function which can quantify kidney pharmaceutical efficacy and toxicity. PMID- 29020012 TI - Wearable sensors objectively measure gait parameters in Parkinson's disease. AB - Distinct gait characteristics like short steps and shuffling gait are prototypical signs commonly observed in Parkinson's disease. Routinely assessed by observation through clinicians, gait is rated as part of categorical clinical scores. There is an increasing need to provide quantitative measurements of gait, e.g. to provide detailed information about disease progression. Recently, we developed a wearable sensor-based gait analysis system as diagnostic tool that objectively assesses gait parameter in Parkinson's disease without the need of having a specialized gait laboratory. This system consists of inertial sensor units attached laterally to both shoes. The computed target of measures are spatiotemporal gait parameters including stride length and time, stance phase time, heel-strike and toe-off angle, toe clearance, and inter-stride variation from gait sequences. To translate this prototype into medical care, we conducted a cross-sectional study including 190 Parkinson's disease patients and 101 age matched controls and measured gait characteristics during a 4x10 meter walk at the subjects' preferred speed. To determine intraindividual changes in gait, we monitored the gait characteristics of 63 patients longitudinally. Cross-sectional analysis revealed distinct spatiotemporal gait parameter differences reflecting typical Parkinson's disease gait characteristics including short steps, shuffling gait, and postural instability specific for different disease stages and levels of motor impairment. The longitudinal analysis revealed that gait parameters were sensitive to changes by mirroring the progressive nature of Parkinson's disease and corresponded to physician ratings. Taken together, we successfully show that wearable sensor-based gait analysis reaches clinical applicability providing a high biomechanical resolution for gait impairment in Parkinson's disease. These data demonstrate the feasibility and applicability of objective wearable sensor based gait measurement in Parkinson's disease reaching high technological readiness levels for both, large scale clinical studies and individual patient care. PMID- 29020014 TI - The structured 'low temperature' phase of the retinal population code. AB - Recent advances in experimental techniques have allowed the simultaneous recordings of populations of hundreds of neurons, fostering a debate about the nature of the collective structure of population neural activity. Much of this debate has focused on the empirical findings of a phase transition in the parameter space of maximum entropy models describing the measured neural probability distributions, interpreting this phase transition to indicate a critical tuning of the neural code. Here, we instead focus on the possibility that this is a first-order phase transition which provides evidence that the real neural population is in a 'structured', collective state. We show that this collective state is robust to changes in stimulus ensemble and adaptive state. We find that the pattern of pairwise correlations between neurons has a strength that is well within the strongly correlated regime and does not require fine tuning, suggesting that this state is generic for populations of 100+ neurons. We find a clear correspondence between the emergence of a phase transition, and the emergence of attractor-like structure in the inferred energy landscape. A collective state in the neural population, in which neural activity patterns naturally form clusters, provides a consistent interpretation for our results. PMID- 29020016 TI - Autonomous dynamic obstacle avoidance for bacteria-powered microrobots (BPMs) with modified vector field histogram. AB - In order to broaden the use of microrobots in practical fields, autonomous control algorithms such as obstacle avoidance must be further developed. However, most previous studies of microrobots used manual motion control to navigate past tight spaces and obstacles while very few studies demonstrated the use of autonomous motion. In this paper, we demonstrated a dynamic obstacle avoidance algorithm for bacteria-powered microrobots (BPMs) using electric field in fluidic environments. A BPM consists of an artificial body, which is made of SU-8, and a high dense layer of harnessed bacteria. BPMs can be controlled using externally applied electric fields due to the electrokinetic property of bacteria. For developing dynamic obstacle avoidance for BPMs, a kinematic model of BPMs was utilized to prevent collision and a finite element model was used to characteristic the deformation of an electric field near the obstacle walls. In order to avoid fast moving obstacles, we modified our previously static obstacle avoidance approach using a modified vector field histogram (VFH) method. To validate the advanced algorithm in experiments, magnetically controlled moving obstacles were used to intercept the BPMs as the BPMs move from the initial position to final position. The algorithm was able to successfully guide the BPMs to reach their respective goal positions while avoiding the dynamic obstacles. PMID- 29020015 TI - Anti-inflammatory and wound healing activities of calophyllolide isolated from Calophyllum inophyllum Linn. AB - Due to the high-cost and limitations of current wound healing treatments, the search for alternative approaches or drugs, particularly from medicinal plants, is of key importance. In this study, we report anti-inflammatory and wound healing activities of the major calophyllolide (CP) compound isolated from Calophyllum inophyllum Linn. The results showed that CP had no effect on HaCaT cell viability over a range of concentrations. CP reduced fibrosis formation and effectively promoted wound closure in mouse model without causing body weight loss. The underlying molecular mechanisms of wound repair by CP was investigated. CP markedly reduced MPO activity, and increased M2 macrophage skewing, as shown by up-regulation of M2-related gene expression, which is beneficial to the wound healing process. CP treatment prevented a prolonged inflammatory process by down regulation of the pro-inflammatory cytokines-IL-1beta, IL-6, TNF-alpha, but up regulation of the anti-inflammatory cytokine, IL-10. This study is the first to indicate a plausible role for CP in accelerating the process of wound healing through anti-inflammatory activity mechanisms, namely, by regulation of inflammatory cytokines, reduction in MPO, and switching of macrophages to an M2 phenotype. These findings may enable the utilization of CP as a potent therapeutic for cutaneous wound healing. PMID- 29020018 TI - Probabilistic-numerical assessment of pyroclastic current hazard at Campi Flegrei and Naples city: Multi-VEI scenarios as a tool for "full-scale" risk management. AB - The Campi Flegrei volcanic field (Italy) poses very high risk to the highly urbanized Neapolitan area. Eruptive history was dominated by explosive activity producing pyroclastic currents (hereon PCs; acronym for Pyroclastic Currents) ranging in scale from localized base surges to regional flows. Here we apply probabilistic numerical simulation approaches to produce PC hazard maps, based on a comprehensive spectrum of flow properties and vent locations. These maps are incorporated in a Geographic Information System (GIS) and provide all probable Volcanic Explosivity Index (VEI) scenarios from different source vents in the caldera, relevant for risk management planning. For each VEI scenario, we report the conditional probability for PCs (i.e., the probability for a given area to be affected by the passage of PCs in case of a PC-forming explosive event) and related dynamic pressure. Model results indicate that PCs from VEI<4 events would be confined within the Campi Flegrei caldera, PC propagation being impeded by the northern and eastern caldera walls. Conversely, PCs from VEI 4-5 events could invade a wide area beyond the northern caldera rim, as well as part of the Naples metropolitan area to the east. A major controlling factor of PC dispersal is represented by the location of the vent area. PCs from the potentially largest eruption scenarios (analogous to the ~15 ka, VEI 6 Neapolitan Yellow Tuff or even the ~39 ka, VEI 7 Campanian Ignimbrite extreme event) would affect a large part of the Campanian Plain to the north and the city of Naples to the east. Thus, in case of renewal of eruptive activity at Campi Flegrei, up to 3 million people will be potentially exposed to volcanic hazard, pointing out the urgency of an emergency plan. Considering the present level of uncertainty in forecasting the future eruption type, size and location (essentially based on statistical analysis of previous activity), we suggest that appropriate planning measures should face at least the VEI 5 reference scenario (at least 2 occurrences documented in the last 10 ka). PMID- 29020017 TI - Normal mode-guided transition pathway generation in proteins. AB - The biological function of proteins is closely related to its structural motion. For instance, structurally misfolded proteins do not function properly. Although we are able to experimentally obtain structural information on proteins, it is still challenging to capture their dynamics, such as transition processes. Therefore, we need a simulation method to predict the transition pathways of a protein in order to understand and study large functional deformations. Here, we present a new simulation method called normal mode-guided elastic network interpolation (NGENI) that performs normal modes analysis iteratively to predict transition pathways of proteins. To be more specific, NGENI obtains displacement vectors that determine intermediate structures by interpolating the distance between two end-point conformations, similar to a morphing method called elastic network interpolation. However, the displacement vector is regarded as a linear combination of the normal mode vectors of each intermediate structure, in order to enhance the physical sense of the proposed pathways. As a result, we can generate more reasonable transition pathways geometrically and thermodynamically. By using not only all normal modes, but also in part using only the lowest normal modes, NGENI can still generate reasonable pathways for large deformations in proteins. This study shows that global protein transitions are dominated by collective motion, which means that a few lowest normal modes play an important role in this process. NGENI has considerable merit in terms of computational cost because it is possible to generate transition pathways by partial degrees of freedom, while conventional methods are not capable of this. PMID- 29020013 TI - In utero and lactational exposure to low-doses of the pyrethroid insecticide cypermethrin leads to neurodevelopmental defects in male mice-An ethological and transcriptomic study. AB - Accumulating evidence suggests that developmental exposure to environmental chemicals may modify the course of brain development, ultimately leading to neuropsychiatric / neurodegenerative disorders later in life. In the present study, we assessed the impact of one of the most frequently used pesticides in both residential and agricultural applications - the synthetic pyrethroid cypermethrin (CYP) - on developmental neurotoxicity (DNT). Female mice were perinatally exposed to low doses of CYP (5 and 20 mg/kg body weight) from gestation to postnatal day 15. Behavioral analyses were performed during the offspring's early life and during adulthood. Postnatal analyses revealed that perinatal exposure to CYP disturbed motor development without modifying sensory and communicative skills. We found that later in life, CYP-exposed offspring expressed maladaptive behaviors in response to highly challenging tasks and abnormal sociability. Transcriptomic analyses performed in the offspring's brain at the end of the exposure, highlighted mitochondrial dysfunction as a relevant pathomechanism underlying CYP-induced DNT. Interestingly, several genes involved in proteostasis maintenance were also shown to be dysregulated suggesting that alterations in biogenesis, folding, trafficking and degradation of proteins may significantly contribute to CYP-related DNT. From a regulatory perspective, this study highlights that behavioral and transcriptomic analyses are complementary tools providing useful direction for better DNT characterization, and as such, should be used together more systematically. PMID- 29020019 TI - They're heating up: Internet search query trends reveal significant public interest in heat-not-burn tobacco products. AB - Heat-not-burn tobacco products, battery powered devices that heat leaf tobacco to approximately 500 degrees Fahrenheit to produce an inhalable aerosol, are being introduced in markets around the world. Japan, where manufacturers have marketed several heat-not-burn brands since 2014, has been the focal national test market, with the intention of developing global marketing strategies. We used Google search query data to estimate, for the first time, the scale and growth potential of heat-not-burn tobacco products. Average monthly searches for heat-not-burn products rose 1,426% (95%CI: 746,3574) between their first (2015) and second (2016) complete years on the market and an additional 100% (95%CI: 60, 173) between the products second (2016) and third years on the market (Jan-Sep 2017). There are now between 5.9 and 7.5 million heat-not-burn related Google searches in Japan each month based on September 2017 estimates. Moreover, forecasts relying on the historical trends suggest heat-not-burn searches will increase an additional 32% (95%CI: -4 to 79) during 2018, compared to current estimates for 2017 (Jan-Sep), with continued growth thereafter expected. Contrasting heat-not burn's rise in Japan to electronic cigarettes' rise in the United States we find searches for heat-not-burn eclipsed electronic cigarette searches during April 2016. Moreover, the change in average monthly queries for heat-not-burn in Japan between 2015 and 2017 was 399 (95% CI: 184, 1490) times larger than the change in average monthly queries for electronic cigarettes in the Unites States over the same time period, increasing by 2,956% (95% CI: 1729, 7304) compared to only 7% (95% CI: 3,13). Our findings are a clarion call for tobacco control leaders to ready themselves as heat-not-burn tobacco products will likely garner substantial interest as they are introduced into new markets. Public health practitioners should expand heat-not-burn tobacco product surveillance, adjust existing tobacco control strategies to account for heat-not-burn tobacco products, and preemptively study the health risks/benefits, popular perceptions, and health messaging around heat-not-burn tobacco products. PMID- 29020020 TI - Distribution and habitat use of red panda in the Chitwan-Annapurna Landscape of Nepal. AB - In Nepal, the red panda (Ailurus fulgens) has been sparsely studied, although its range covers a wide area. The present study was carried out in the previously untapped Chitwan-Annapurna Landscape (CHAL) situated in central Nepal with an aim to explore current distributional status and identify key habitat use. Extensive field surveys conducted in 10 red panda range districts were used to estimate species distribution by presence-absence occupancy modeling and to predict distribution by presence-only modeling. The presence of red pandas was recorded in five districts: Rasuwa, Nuwakot, Myagdi, Baglung and Dhading. The predictive distribution model indicated that 1,904.44 km2 of potential red panda habitat is available in CHAL with the protected area covering nearly 41% of the total habitat. The habitat suitability analysis based on the probability of occurrence showed only 16.58% (A = 315.81 km2) of the total potential habitat is highly suitable. Red Panda occupancy was estimated to be around 0.0667, indicating nearly 7% (218 km2) of the total habitat is occupied with an average detection probability of 0.4482+/-0.377. Based on the habitat use analysis, altogether eight variables including elevation, slope, aspect, proximity to water sources, bamboo abundance, height, cover, and seasonal precipitation were observed to have significant roles in the distribution of red pandas. In addition, 25 tree species were documented from red panda sign plots out of 165 species recorded in the survey area. Most common was Betula utilis followed by Rhododendron spp. and Abies spectabilis. The extirpation of red pandas in previously reported areas indicates a need for immediate action for the long-term conservation of this species in CHAL. PMID- 29020022 TI - The geological record and phylogeny of spider wasps (Hymenoptera: Pompilidae): A revision of fossil species and their phylogenetic placement. AB - Accurate fossil identification has become increasingly relevant with the widespread use of phylogenetic divergence time estimation methods, which rely on fossil data to determine clade hard-minimum ages. Here we revise, diagnose and illustrate known spider wasp (Hymenoptera: Pompilidae) fossil species and place them within the latest Pompilidae phylogenetic hypothesis. Ceropalites infelix Cockerell, from the Florissant Fossil Beds (Priabonian), is no longer recognized as Pompilidae, but as Aulacidae. Agenioideus saxigenus (Cockerell) comb. nov., Deuteragenia wettweri (Statz) comb. nov., Caputelus scudderi (Cockerell, 1906) comb. nov., Pepsinites avitula (Cockerell, 1941) comb. nov., Pepsinites contentus (Theobald, 1937) comb. nov., Pepsinites florissantensis (Cockerell, 1906) comb. nov., Pepsinites laminarum (Rohwer, 1909) comb. nov., Pepsinites scelerosus (Meunier, 1919) comb. nov., Pepsinites cockerellae (Rohwer, 1909) comb. nov., Pompilinites coquandi (Theobald, 1937) comb. nov., Pompilinites depressus (Statz, 1936) comb. nov., Pompilites incertus (Theobald, 1937) comb. nov., Pompilites induratus (Heer, 1849) comb. nov., Pompilites fasciatus (Theobald, 1937) comb. nov., and Pompilites senex comb. nov. are new combinations. Twenty-three fossil species of spider wasps are now recognized in 13 genera. Four new genera are proposed: Caputelus Waichert & Pitts gen. nov., Pompilites Rodriguez gen. nov., Pompilinites Rodriguez & Waichert gen. nov., and Pepsinites Rodriguez & Waichert gen. nov., of which the three latter are collective-group names for fossils with taxonomic uncertainty. One species of fossil spider wasp is described: Deuteragenia catalunyia Rodriguez, Waichert & Pitts sp. nov., from the Bellver deposits in Catalonia, Spain. Five of the 23 known species can be used to determine hard-minimum age for calibrations of genera stem-groups (Agenioideus, Anoplius, Cryptocheilus, Deuteragenia, Priocnemis). The fossil belonging to the stem-group of the tribe Ageniellini (Chubutholites) is not recommended for calibration because of the high uncertainty in its age and taxonomy. The remaining taxa can be assigned to the lineage comprising Pompilinae + Pepsinae (12 species) or crown-group Pompilidae (four species). PMID- 29020021 TI - Physiological, morphological, and ecological tradeoffs influence vertical habitat use of deep-diving toothed-whales in the Bahamas. AB - Dive capacity among toothed whales (suborder: Odontoceti) has been shown to generally increase with body mass in a relationship closely linked to the allometric scaling of metabolic rates. However, two odontocete species tagged in this study, the Blainville's beaked whale Mesoplodon densirostris and the Cuvier's beaked whale Ziphius cavirostris, confounded expectations of a simple allometric relationship, with exceptionally long (mean: 46.1 min & 65.4 min) and deep dives (mean: 1129 m & 1179 m), and comparatively small body masses (med.: 842.9 kg & 1556.7 kg). These two species also exhibited exceptionally long recovery periods between successive deep dives, or inter-deep-dive intervals (M. densirostris: med. 62 min; Z. cavirostris: med. 68 min). We examined competing hypotheses to explain observed patterns of vertical habitat use based on body mass, oxygen binding protein concentrations, and inter-deep-dive intervals in an assemblage of five sympatric toothed whales species in the Bahamas. Hypotheses were evaluated using dive data from satellite tags attached to the two beaked whales (M. densirostris, n = 12; Z. cavirostris, n = 7), as well as melon-headed whales Peponocephala electra (n = 13), short-finned pilot whales Globicephala macrorhynchus (n = 15), and sperm whales Physeter macrocephalus (n = 27). Body mass and myoglobin concentration together explained only 36% of the variance in maximum dive durations. The inclusion of inter-deep-dive intervals, substantially improved model fits (R2 = 0.92). This finding supported a hypothesis that beaked whales extend foraging dives by exceeding aerobic dive limits, with the extension of inter-deep-dive intervals corresponding to metabolism of accumulated lactic acid. This inference points to intriguing tradeoffs between body size, access to prey in different depth strata, and time allocation within dive cycles. These tradeoffs and resulting differences in habitat use have important implications for spatial distribution patterns, and relative vulnerabilities to anthropogenic impacts. PMID- 29020023 TI - The continuous reaction time test for minimal hepatic encephalopathy validated by a randomized controlled multi-modal intervention-A pilot study. AB - BACKGROUND: Minimal hepatic encephalopathy (MHE) is clinically undetectable and the diagnosis requires psychometric tests. However, a lack of clarity exists as to whether the tests are in fact able to detect changes in cognition. AIM: To examine if the continuous reaction time test (CRT) can detect changes in cognition with anti-HE intervention in patients with cirrhosis and without clinically manifest hepatic encephalopathy (HE). METHODS: Firstly, we conducted a reproducibility analysis and secondly measured change in CRT induced by anti-HE treatment in a randomized controlled pilot study: We stratified 44 patients with liver cirrhosis and without clinically manifest HE according to a normal (n = 22) or abnormal (n = 22) CRT. Each stratum was then block randomized to receive multimodal anti-HE intervention (lactulose+branched-chain amino acids+rifaximin) or triple placebos for 3 months in a double-blinded fashion. The CRT is a simple PC-based test and the test result, the CRT index (normal threshold > 1.9), describes the patient's stability of alertness during the 10-minute test. Our study outcome was the change in CRT index in each group at study exit. The portosystemic encephalopathy (PSE) test, a paper-and-pencil test battery (normal threshold above -5), was used as a comparator test according to international guidelines. RESULTS: The patients with an abnormal CRT index who were randomized to receive the active intervention normalized or improved their CRT index (mean change 0.92 +/- 0.29, p = 0.01). Additionally, their PSE improved (change 3.85 +/ 1.83, p = 0.03). There was no such effect in any of the other study groups. CONCLUSION: In this cohort of patients with liver cirrhosis and no manifest HE, the CRT identified a group in whom cognition improved with intensive anti-HE intervention. This finding infers that the CRT can detect a response to treatment and might help in selecting patients for treatment. PMID- 29020024 TI - An application of the Continuous Opinions and Discrete Actions (CODA) model to adolescent smoking initiation. AB - We investigated the impact of peers' opinions on the smoking initiation process among adolescents. We applied the Continuous Opinions and Discrete Actions (CODA) model to study how social interactions change adolescents' opinions and behaviors about smoking. Through agent-based modeling (ABM), we simulated a population of 2500 adolescents and compared smoking prevalence to data from 9 cohorts of adolescents in the National Survey on Drug Use and Health (NSDUH) from year 2001 till 2014. Our model adjusts well for NSDUH data according to pseudo R2 values, which are at least 96%. Optimal parameter values indicate that adolescents exhibit imitator characteristics with regard to smoking opinions. The imitator characteristics suggests that teenagers tend to update their opinions consistently according to what others do, and these opinions later translate into smoking behaviors. As a result, peer influence from social networks plays a big role in the smoking initiation process and should be an important driver in policy formulation. PMID- 29020026 TI - Features of the normal choriocapillaris with OCT-angiography: Density estimation and textural properties. AB - The main objective of our work is to perform an in depth analysis of the structural features of normal choriocapillaris imaged with OCT Angiography. Specifically, we provide an optimal radius for a circular Region of Interest (ROI) to obtain a stable estimate of the subfoveal choriocapillaris density and characterize its textural properties using Markov Random Fields. On each binarized image of the choriocapillaris OCT Angiography we performed simulated measurements of the subfoveal choriocapillaris densities with circular Regions of Interest (ROIs) of different radii and with small random displacements from the center of the Foveal Avascular Zone (FAZ). We then calculated the variability of the density measure with different ROI radii. We then characterized the textural features of choriocapillaris binary images by estimating the parameters of an Ising model. For each image we calculated the Optimal Radius (OR) as the minimum ROI radius required to obtain a standard deviation in the simulation below 0.01. The density measured with the individual OR was 0.52 +/- 0.07 (mean +/- STD). Similar density values (0.51 +/- 0.07) were obtained using a fixed ROI radius of 450 MUm. The Ising model yielded two parameter estimates (beta = 0.34 +/- 0.03; gamma = 0.003 +/- 0.012; mean +/- STD), characterizing pixel clustering and white pixel density respectively. Using the estimated parameters to synthetize new random textures via simulation we obtained a good reproduction of the original choriocapillaris structural features and density. In conclusion, we developed an extensive characterization of the normal subfoveal choriocapillaris that might be used for flow analysis and applied to the investigation pathological alterations. PMID- 29020025 TI - Worry about racial discrimination: A missing piece of the puzzle of Black-White disparities in preterm birth? AB - OBJECTIVES: The causes of the large and persistent Black-White disparity in preterm birth (PTB) are unknown. It is biologically plausible that chronic stress across a woman's life course could be a contributor. Prior research suggests that chronic worry about experiencing racial discrimination could affect PTB through neuroendocrine, vascular, or immune mechanisms involved in both responses to stress and the initiation of labor. This study aimed to examine the role of chronic worry about racial discrimination in Black-White disparities in PTB. METHODS: The data source was cross-sectional California statewide-representative surveys of 2,201 Black and 8,122 White, non-Latino, U.S.-born postpartum women with singleton live births during 2011-2014. Chronic worry about racial discrimination (chronic worry) was defined as responses of "very often" or "somewhat often" (vs. "not very often" or "never") to the question: "Overall during your life until now, how often have you worried that you might be treated or viewed unfairly because of your race or ethnic group?" Prevalence ratios (PRs) with 95% Confidence Intervals (CI) were calculated from sequential logistic regression models, before and after adjustment for multiple social/demographic, behavioral, and medical factors, to estimate the magnitude of: (a) PTB risks associated with chronic worry among Black women and among White women; and (b) Black-White disparities in PTB, before and after adjustment for chronic worry. RESULTS: Among Black and White women respectively, 36.9 (95% CI 32.9-40.9) % and 5.5 (95% CI 4.5-6.5) % reported chronic worry about racial discrimination; rates were highest among Black women of higher income and education levels. Chronic worry was significantly associated with PTB among Black women before (PR 1.73, 95% CI 1.12-2.67) and after (PR 2.00, 95% CI 1.33-3.01) adjustment for covariates. The unadjusted Black-White disparity in PTB (PR 1.59, 95%CI 1.21 2.09) appeared attenuated and became non-significant after adjustment for chronic worry (PR 1.30, 95% CI 0.93-1.81); it appeared further attenuated after adding the covariates (PR 1.17, 95% CI 0.85-1.63). CONCLUSIONS: Chronic worry about racial discrimination may play an important role in Black-White disparities in PTB and may help explain the puzzling and repeatedly observed greater PTB disparities among more socioeconomically-advantaged women. Although the single measure of experiences of racial discrimination used in this study precluded examination of the role of other experiences of racial discrimination, such as overt incidents, it is likely that our findings reflect an association between one or more experiences of racial discrimination and PTB. Further research should examine a range of experiences of racial discrimination, including not only chronic worry but other psychological and emotional states and both subtle and overt incidents as well. These dramatic results from a large statewide representative study add to a growing-but not widely known-literature linking racism-related stress with physical health in general, and shed light on the links between racism-related stress and PTB specifically. Without being causally definitive, this study's findings should stimulate further research and heighten awareness of the potential role of unmeasured social variables, such as diverse experiences of racial discrimination, in racial disparities in health. PMID- 29020027 TI - An investigation of left/right driving rules on deviations while walking. AB - When traversing through an aperture, such as a doorway, people characteristically deviate towards the right. This rightward deviation can be explained by a rightward attentional bias which leads to rightward bisections in far space. It is also possible, however, that left or right driving practices affect the deviation. To explore this possibility, Australian (left-side drivers) and Swiss (right-side drivers) participants (n = 36 & 34) walked through the middle of an aperture. To control for the sway of the body, participants started with either their left or right foot. Sway had a significant effect on participants' position in the doorway and the amount of sway was greater for Australians-perhaps due to national differences in gait. There was a significant rightward deviation for the Swiss, but not for the Australians. It is suggested that driving practices have a small additive effect on rightward attentional biases whereby the bias is increased for people who drive on the right and reduced in people who drive on the left. PMID- 29020028 TI - Learning speed is affected by personality and reproductive investment in a songbird. AB - Individuals from different taxa, including songbirds, differ consistently in behaviour and personality when facing different situations. Although our understanding of animal behaviour has increased, knowledge about between individual differences in cognitive abilities is still limited. By using an experimental approach and a free-living songbird (Parus major) as a model, we attempted to understand between-individual differences in habituation to playbacks (as a proxy of learning speed), by investigating the role of personality, age and reproductive investment (clutch size). Pre-breeding males were tested for exploration (a proxy of personality) in standardized conditions. In addition, the same individuals were exposed to three playbacks in the field during incubation. Birds significantly moved less, stayed further away and overlapped less the playback with successive playback stimulation. While a decrease in the locomotor behaviour can be explained by personality, differences in habituation of overlapping were predicted by both reproductive investment and personality. Fast explorers habituated less. Moreover, males paired to females with larger clutches did not vary the intensity of overlapping. Since habituation requires information for recognition of non-threatening signals, personality may bias information gathering. While fast explorers may collect less information from the environment, slow explorers (reactive birds) seem to pay attention to environmental clues and collect detailed information. We provided evidence that the rate of habituation of behavioural responses, a proxy of cognitive abilities, may be affected by different factors and in a complex way. PMID- 29020029 TI - Something from nothing: Estimating consumption rates using propensity scores, with application to emissions reduction policies. AB - Consumption surveys often record zero purchases of a good because of a short observation window. Measures of distribution are then precluded and only mean consumption rates can be inferred. We show that Propensity Score Matching can be applied to recover the distribution of consumption rates. We demonstrate the method using the UK National Travel Survey, in which c.40% of motorist households purchase no fuel. Estimated consumption rates are plausible judging by households' annual mileages, and highly skewed. We apply the same approach to estimate CO2 emissions and outcomes of a carbon cap or tax. Reliance on means apparently distorts analysis of such policies because of skewness of the underlying distributions. The regressiveness of a simple tax or cap is overstated, and redistributive features of a revenue-neutral policy are understated. PMID- 29020030 TI - The first hyaenodont from the late Oligocene Nsungwe Formation of Tanzania: Paleoecological insights into the Paleogene-Neogene carnivore transition. AB - Throughout the Paleogene, most terrestrial carnivore niches in Afro-Arabia were occupied by Hyaenodonta, an extinct lineage of placental mammals. By the end of the Miocene, terrestrial carnivore niches had shifted to members of Carnivora, a clade with Eurasian origins. The transition from a hyaenodont-carnivore fauna to a carnivoran-carnivore fauna coincides with other ecological changes in Afro Arabia as tectonic conditions in the African Rift System altered climatic conditions and facilitated faunal exchange with Eurasia. Fossil bearing deposits in the Nsungwe Formation in southwestern Tanzania are precisely dated to ~25.2 Ma (late Oligocene), preserving a late Paleogene Afro-Arabian fauna on the brink of environmental transition, including the earliest fossil evidence of the split between Old World monkeys and apes. Here we describe a new hyaenodont from the Nsungwe Formation, Pakakali rukwaensis gen. et sp. nov., a bobcat-sized taxon known from a portion of the maxilla that preserves a deciduous third premolar and alveoli of dP4 and M1. The crown of dP3 bears an elongate parastyle and metastyle and a small, blade-like metacone. Based on alveolar morphology, the two more distal teeth successively increased in size and had relatively large protocones. Using a hyaenodont character-taxon matrix that includes deciduous dental characters, Bayesian phylogenetic methods resolve Pakakali within the clade Hyainailouroidea. A Bayesian biogeographic analysis of phylogenetic results resolve the Pakakali clade as Afro-Arabian in origin, demonstrating that this small carnivorous mammal was part of an endemic Afro-Arabian lineage that persisted into the Miocene. Notably, Pakakali is in the size range of carnivoran forms that arrived and began to diversify in the region by the early Miocene. The description of Pakakali is important for exploring hyaenodont ontogeny and potential influences of Afro-Arabian tectonic events upon mammalian evolution, providing a deep time perspective on the stability of terrestrial carnivore niches through time. PMID- 29020032 TI - Linking functional response and bioenergetics to estimate juvenile salmon growth in a reservoir food web. AB - Juvenile salmon (Oncorhynchus spp.) use of reservoir food webs is understudied. We examined the feeding behavior of subyearling Chinook salmon (O. tshawytscha) and its relation to growth by estimating the functional response of juvenile salmon to changes in the density of Daphnia, an important component of reservoir food webs. We then estimated salmon growth across a broad range of water temperatures and daily rations of two primary prey, Daphnia and juvenile American shad (Alosa sapidissima) using a bioenergetics model. Laboratory feeding experiments yielded a Type-II functional response curve: C = 29.858 P *(4.271 + P)-1 indicating that salmon consumption (C) of Daphnia was not affected until Daphnia densities (P) were < 30 . L-1. Past field studies documented Daphnia densities in lower Columbia River reservoirs of < 3 . L-1 in July but as high as 40 . L-1 in August. Bioenergetics modeling indicated that subyearlings could not achieve positive growth above 22 degrees C regardless of prey type or consumption rate. When feeding on Daphnia, subyearlings could not achieve positive growth above 20 degrees C (water temperatures they commonly encounter in the lower Columbia River during summer). At 16-18 degrees C, subyearlings had to consume about 27,000 Daphnia . day-1 to achieve positive growth. However, when feeding on juvenile American shad, subyearlings had to consume 20 shad . day-1 at 16-18 degrees C, or at least 25 shad . day-1 at 20 degrees C to achieve positive growth. Using empirical consumption rates and water temperatures from summer 2013, subyearlings exhibited negative growth during July (-0.23 to -0.29 g . d-1) and August (-0.05 to -0.07 g . d-1). By switching prey from Daphnia to juvenile shad which have a higher energy density, subyearlings can partially compensate for the effects of higher water temperatures they experience in the lower Columbia River during summer. However, achieving positive growth as piscivores requires subyearlings to feed at higher consumption rates than they exhibited empirically. While our results indicate compromised growth in reservoir habitats, the long-term repercussions to salmon populations in the Columbia River Basin are unknown. PMID- 29020031 TI - Sudden cardiac death and pump failure death prediction in chronic heart failure by combining ECG and clinical markers in an integrated risk model. AB - BACKGROUND: Sudden cardiac death (SCD) and pump failure death (PFD) are common endpoints in chronic heart failure (CHF) patients, but prevention strategies are different. Currently used tools to specifically predict these endpoints are limited. We developed risk models to specifically assess SCD and PFD risk in CHF by combining ECG markers and clinical variables. METHODS: The relation of clinical and ECG markers with SCD and PFD risk was assessed in 597 patients enrolled in the MUSIC (MUerte Subita en Insuficiencia Cardiaca) study. ECG indices included: turbulence slope (TS), reflecting autonomic dysfunction; T-wave alternans (TWA), reflecting ventricular repolarization instability; and T-peak-to end restitution (DeltaalphaTpe) and T-wave morphology restitution (TMR), both reflecting changes in dispersion of repolarization due to heart rate changes. Standard clinical indices were also included. RESULTS: The indices with the greatest SCD prognostic impact were gender, New York Heart Association (NYHA) class, left ventricular ejection fraction, TWA, DeltaalphaTpe and TMR. For PFD, the indices were diabetes, NYHA class, DeltaalphaTpe and TS. Using a model with only clinical variables, the hazard ratios (HRs) for SCD and PFD for patients in the high-risk group (fifth quintile of risk score) with respect to patients in the low-risk group (first and second quintiles of risk score) were both greater than 4. HRs for SCD and PFD increased to 9 and 11 when using a model including only ECG markers, and to 14 and 13, when combining clinical and ECG markers. CONCLUSION: The inclusion of ECG markers capturing complementary pro-arrhythmic and pump failure mechanisms into risk models based only on standard clinical variables substantially improves prediction of SCD and PFD in CHF patients. PMID- 29020033 TI - Genotype combination contributes to psoriasis: An exhaustive algorithm perspective. AB - Researchers have learned that nearly all conditions and diseases have a genetic component. With the benefit of technological advances, many single-nucleotide polymorphisms (SNPs) have been found to be associated with the risk of complex disorders by using genome wide association studies (GWASs). Disease-associated SNPs are sometimes shared by healthy controls and cannot clearly distinguish affected individuals from unaffected ones. The combined effects of multiple independent SNPs contribute to the disease process, but revealing the relationship between genotype and phenotype based on the combinations remains a great challenge. In this study, by considering the disease prevalence rate, we conducted an exhaustive process to identify whether a genotype combination pattern would have a decisive effect on complex disorders. Based on genotype data for 68 reported SNPs in 8,372 psoriasis patients and 8,510 healthy controls, we found that putative causal genotype combination patterns (CGCPs) were only present in psoriasis patients, not in healthy subjects. These results suggested that psoriasis might be contributed by combined genotypes, complementing the traditional modest susceptibility of a single variant in a single gene for a complex disease. This work is the first systematic study to analyze genotype combinations based on the reported susceptibility genes, considering each individual among the cases and controls from the Chinese population, and could potentially advance disease-gene mapping and precision medicine due to the causality relationship between the candidate CGCPs and complex diseases. PMID- 29020034 TI - Tolerance analysis of chloroplast OsCu/Zn-SOD overexpressing rice under NaCl and NaHCO3 stress. AB - The 636-bp-long cDNA sequence of OsCu/Zn-SOD (AK059841) was cloned from Oryza sativa var. Longjing11 via reverse transcription polymerase chain reaction (RT PCR). The encoded protein comprised of 211 amino acids is highly homologous to Cu/Zn-SOD proteins from tuscacera rice and millet. Quantitative RT-PCR revealed that in rice, the level of OsCu/Zn-SOD gene expression was lowest in roots and was highest in petals and during the S5 leaf stage. Moreover, the expression level of OsCu/Zn-SOD gene expression decreased during the L5 leaf stage to maturity. The level of OsCu/Zn-SOD gene expression, however, was increased under saline-sodic stress and NaHCO3 stress. Germination tests under 125, 150, and 175 mM NaCl revealed that OsCu/Zn-SOD-overexpressing lines performed better than the non-transgenic (NT) Longjing11 lines in terms of germination rate and height. Subjecting seedlings to NaHCO3 and water stress revealed that OsCu/Zn-SOD overexpressing lines performed better than NT in terms of SOD activity, fresh weight, root length, and height. Under simulated NaHCO3 stress, OsCu/Zn-SOD overexpressing lines performed better than NT in terms of survival rate (25.19% > 6.67%) and yield traits (average grain weight 20.6 > 18.15 g). This study showed that OsCu/Zn-SOD gene overexpression increases the detoxification capacity of reactive oxygen species in O. sativa and reduces salt-induced oxidative damage. We also revealed the regulatory mechanism of OsCu/Zn-SOD enzyme in saline-sodic stress resistance in O. sativa. Moreover, we provided an experimental foundation for studying the mechanism of OsCu/Zn-SOD enzymes in the chloroplast. PMID- 29020035 TI - Correction: Decoupling of the PI3K Pathway via Mutation Necessitates Combinatorial Treatment in HER2+ Breast Cancer. AB - [This corrects the article DOI: 10.1371/journal.pone.0133219.]. PMID- 29020038 TI - Correction: Integrating Genetic, Neuropsychological and Neuroimaging Data to Model Early-Onset Obsessive Compulsive Disorder Severity. AB - [This corrects the article DOI: 10.1371/journal.pone.0153846.]. PMID- 29020036 TI - Mixtures of tense and relaxed state polymerized human hemoglobin regulate oxygen affinity and tissue construct oxygenation. AB - Pure tense (T) and relaxed (R) quaternary state polymerized human hemoglobins (PolyhHbs) were synthesized and their biophysical properties characterized, along with mixtures of T- and R-state PolyhHbs. It was observed that the oxygen affinity of PolyhHb mixtures varied linearly with T-state mole fraction. Computational analysis of PolyhHb facilitated oxygenation of a single fiber in a hepatic hollow fiber (HF) bioreactor was performed to evaluate the oxygenation potential of T- and R-state PolyhHb mixtures. PolyhHb mixtures with T-state mole fractions greater than 50% resulted in hypoxic and hyperoxic zones occupying less than 5% of the total extra capillary space (ECS). Under these conditions, the ratio of the pericentral volume to the perivenous volume in the ECS doubled as the T-state mole fraction increased from 50 to 100%. These results show the effect of varying the T/R-state PolyhHb mole fraction on oxygenation of tissue engineered constructs and their potential to oxygenate tissues. PMID- 29020037 TI - A conserved fungal glycosyltransferase facilitates pathogenesis of plants by enabling hyphal growth on solid surfaces. AB - Pathogenic fungi must extend filamentous hyphae across solid surfaces to cause diseases of plants. However, the full inventory of genes which support this is incomplete and many may be currently concealed due to their essentiality for the hyphal growth form. During a random T-DNA mutagenesis screen performed on the pleomorphic wheat (Triticum aestivum) pathogen Zymoseptoria tritici, we acquired a mutant unable to extend hyphae specifically when on solid surfaces. In contrast "yeast-like" growth, and all other growth forms, were unaffected. The inability to extend surface hyphae resulted in a complete loss of virulence on plants. The affected gene encoded a predicted type 2 glycosyltransferase (ZtGT2). Analysis of >800 genomes from taxonomically diverse fungi highlighted a generally widespread, but discontinuous, distribution of ZtGT2 orthologues, and a complete absence of any similar proteins in non-filamentous ascomycete yeasts. Deletion mutants of the ZtGT2 orthologue in the taxonomically un-related fungus Fusarium graminearum were also severely impaired in hyphal growth and non-pathogenic on wheat ears. ZtGT2 expression increased during filamentous growth and electron microscopy on deletion mutants (DeltaZtGT2) suggested the protein functions to maintain the outermost surface of the fungal cell wall. Despite this, adhesion to leaf surfaces was unaffected in DeltaZtGT2 mutants and global RNAseq-based gene expression profiling highlighted that surface-sensing and protein secretion was also largely unaffected. However, DeltaZtGT2 mutants constitutively overexpressed several transmembrane and secreted proteins, including an important LysM-domain chitin-binding virulence effector, Zt3LysM. ZtGT2 likely functions in the synthesis of a currently unknown, potentially minor but widespread, extracellular or outer cell wall polysaccharide which plays a key role in facilitating many interactions between plants and fungi by enabling hyphal growth on solid matrices. PMID- 29020040 TI - Validity and reliability of the Dutch version of the Copenhagen Hip And Groin Outcome Score (HAGOS-NL) in patients with hip pathology. AB - BACKGROUND AND OBJECTIVES: The Copenhagen Hip And Groin Outcome Score (HAGOS) was developed to assess disease-specific consequences in young to middle-aged, physically active hip and/or groin patients. The study aimed to determine validity and reliability of the Dutch version of the HAGOS (HAGOS-NL) for middle aged patients with hip complaints. DESIGN AND METHODS: To assess validity, 117 participants completed five questionnaires: HAGOS-NL, international Hip Outcome Tool (iHOT-12NL), Hip disability and Osteoarthritis Outcome Score (HOOS), RAND-36 Health Survey and Tegner activity scale. Structural validity was determined by conducting confirmatory factor analysis. Construct validity was analyzed by formulating predefined hypotheses regarding relationships between the HAGOS-NL and subscales of the iHOT-12NL, HOOS, RAND-36 and Tegner activity scale. The HAGOS-NL was filled out again by 67 patients to explore test-retest reliability. Reliability was assessed in terms of Cronbach's alpha, Intraclass Correlation Coefficient (ICC), Standard Error of Measurement (SEM) and Minimal Detectable Change (MDC). The Bland and Altman method was used to explore absolute agreement. RESULTS: Factor analysis confirmed that the HAGOS-NL consists of six subscales. All hypotheses were confirmed, indicating good construct validity. Internal consistency was good, with Cronbach's alpha values ranging from 0.89 to 0.98. Test-retest reliability was considered good, with ICC values of 0.80 and higher. The SEM ranged from 6.6 to 12.3, and MDC at individual level from 18.3 to 34.1 and at group level from 2.3 to 4.4. Bland and Altman analyses showed no bias. CONCLUSION: The HAGOS-NL is a reliable and valid instrument for measuring pain, physical functioning and quality of life in middle-aged patients with hip complaints. PMID- 29020039 TI - ERalpha36, a variant of estrogen receptor alpha, is predominantly localized in mitochondria of human uterine smooth muscle and leiomyoma cells. AB - ERalpha36 is a naturally occurring, membrane-associated, isoform of estrogen receptor alpha. The expression of ERalpha36 is due to alternative splicing and different promoter usage. ERalpha36 is a dominant-negative effector of ERalpha66 mediated transactivational activities and has the potential to trigger membrane initiated mitogenic, nongenomic, estrogen signaling; however, the subcellular localization of ERalpha36 remains controversial. To determine the cellular localization of ERalpha36 in estrogen-responsive human uterine smooth muscle (ht UtSMC) and leiomyoma (fibroid; ht-UtLM) cells, we conducted systematic confocal microscopy and subcellular fractionation analysis using ERalpha36 antibodies. With Image J colocalizaton analysis plugin, confocal images were analyzed to obtain a Pearson's Correlation Coefficient (PCC) to quantify signal colocalization of ERalpha36 with mitochondrial, endoplasmic reticulum, and cytoskeletal components in both cell lines. When cells were double-stained with an ERalpha36 antibody and a mitochondrial-specific dye, MitoTracker, the PCC for the two channel signals were both greater than 0.75, indicating strong correlation between ERalpha36 and mitochondrial signals in the two cell lines. A blocking peptide competition assay confirmed that the mitochondria-associated ERalpha36 signal detected by confocal analysis was specific for ERalpha36. In contrast, confocal images double-stained with an ERalpha36 antibody and endoplasmic reticulum or cytoskeletal markers, had PCCs that were all less than 0.4, indicating no or very weak signal correlation. Fractionation studies showed that ERalpha36 existed predominantly in membrane fractions, with minimal or undetected amounts in the cytosol, nuclear, chromatin, and cytoskeletal fractions. With isolated mitochondrial preparations, we confirmed that a known mitochondrial protein, prohibitin, was present in mitochondria, and by co immunoprecipitation analysis that ERalpha36 was associated with prohibitin in ht UtLM cells. The distinctive colocalization pattern of ERalpha36 with mitochondria in ht-UtSMC and ht-UtLM cells, and the association of ERalpha36 with a mitochondrial-specific protein suggest that ERalpha36 is localized primarily in mitochondria and may play a pivotal role in non-genomic signaling and mitochondrial functions. PMID- 29020041 TI - How will climate change pathways and mitigation options alter incidence of vector borne diseases? A framework for leishmaniasis in South and Meso-America. AB - The enormous global burden of vector-borne diseases disproportionately affects poor people in tropical, developing countries. Changes in vector-borne disease impacts are often linked to human modification of ecosystems as well as climate change. For tropical ecosystems, the health impacts of future environmental and developmental policy depend on how vector-borne disease risks trade off against other ecosystem services across heterogeneous landscapes. By linking future socio economic and climate change pathways to dynamic land use models, this study is amongst the first to analyse and project impacts of both land use and climate change on continental-scale patterns in vector-borne diseases. Models were developed for cutaneous and visceral leishmaniasis in the Americas-ecologically complex sand fly borne infections linked to tropical forests and diverse wild and domestic mammal hosts. Both diseases were hypothesised to increase with available interface habitat between forest and agricultural or domestic habitats and with mammal biodiversity. However, landscape edge metrics were not important as predictors of leishmaniasis. Models including mammal richness were similar in accuracy and predicted disease extent to models containing only climate and land use predictors. Overall, climatic factors explained 80% and land use factors only 20% of the variance in past disease patterns. Both diseases, but especially cutaneous leishmaniasis, were associated with low seasonality in temperature and precipitation. Since such seasonality increases under future climate change, particularly under strong climate forcing, both diseases were predicted to contract in geographical extent to 2050, with cutaneous leishmaniasis contracting by between 35% and 50%. Whilst visceral leishmaniasis contracted slightly more under strong than weak management for carbon, biodiversity and ecosystem services, future cutaneous leishmaniasis extent was relatively insensitive to future alternative socio-economic pathways. Models parameterised at narrower geographical scales may be more sensitive to land use pattern and project more substantial changes in disease extent under future alternative socio-economic pathways. PMID- 29020044 TI - Correction: Do MZ twins have discordant experiences of friendship? A qualitative hypothesis-generating MZ twin differences study. AB - [This corrects the article DOI: 10.1371/journal.pone.0180521.]. PMID- 29020042 TI - Is mass drug administration against lymphatic filariasis required in urban settings? The experience in Kano, Nigeria. AB - BACKGROUND: The Global Programme to Eliminate Lymphatic Filariasis (GPELF), launched in 2000, has the target of eliminating the disease as a public health problem by the year 2020. The strategy adopted is mass drug administration (MDA) to all eligible individuals in endemic communities and the implementation of measures to reduce the morbidity of those suffering from chronic disease. Success has been recorded in many rural endemic communities in which elimination efforts have centered. However, implementation has been challenging in several urban African cities. The large cities of West Africa, exemplified in Nigeria in Kano are challenging for LF elimination program because reaching 65% therapeutic coverage during MDA is difficult. There is therefore a need to define a strategy which could complement MDA. Thus, in Kano State, Nigeria, while LF MDA had reached 33 of the 44 Local Government Areas (LGAs) there remained eleven 'urban' LGAs which had not been covered by MDA. Given the challenges of achieving at least 65% coverage during MDA implementation over several years in order to achieve elimination, it may be challenging to eliminate LF in such settings. In order to plan the LF control activities, this study was undertaken to confirm the LF infection prevalence in the human and mosquito populations in three urban LGAs. METHODS: The prevalence of circulating filarial antigen (CFA) of Wuchereria bancrofti was assessed by an immuno-chromatography test (ICT) in 981 people in three urban LGAs of Kano state, Nigeria. Mosquitoes were collected over a period of 4 months from May to August 2015 using exit traps, gravid traps and pyrethrum knock-down spray sheet collections (PSC) in different households. A proportion of mosquitoes were analyzed for W. bancrofti, using dissection, loop-mediated isothermal amplification (LAMP) assay and conventional polymerase chain reaction (PCR). RESULTS: The results showed that none of the 981 subjects (constituted of <21% of children 5-10 years old) tested had detectable levels of CFA in their blood. Entomological results showed that An. gambiae s.l. had W. bancrofti DNA detectable in pools in Kano; W. bancrofti DNA was detected in between 0.96% and 6.78% and to a lesser extent in Culex mosquitoes where DNA was detected at rates of between 0.19% and 0.64%. DNA analysis showed that An. coluzzii constituted 9.9% of the collected mosquitoes and the remaining 90.1% of the mosquitoes were Culex mosquitoes. CONCLUSION: Despite detection of W. bancrofti DNA within mosquito specimens collected in three Kano urban LGAs, we were not able to find a subject with detectable level of CFA. Together with other evidence suggesting that LF transmission in urban areas in West Africa may not be of significant importance, the Federal Ministry of Health advised that two rounds of MDA be undertaken in the urban areas of Kano. It is recommended that the prevalence of W. bancrofti infection in the human and mosquito populations be re-assessed after a couple of years. PMID- 29020043 TI - Chloroplast digestion and the development of functional kleptoplasty in juvenile Elysia timida (Risso, 1818) as compared to short-term and non-chloroplast retaining sacoglossan slugs. AB - Sacoglossan sea slugs are the only metazoans known to perform functional kleptoplasty, the sequestration and retention of functional chloroplasts within their digestive gland cells. Remarkably, a few species with this ability can survive starvation periods of 3-12 months likely due to their stolen chloroplasts. There are no reports of kleptoplast transfer from mother slug to either eggs or juveniles, demonstrating that each animal must independently acquire its kleptoplasts and develop the ability to maintain them within its digestive gland. We present here an investigation into the development of functional kleptoplasty in a long-term kleptoplast retaining species, Elysia timida. Laboratory-reared juvenile slugs of different post-metamorphic ages were placed in starvation and compared to 5 known short-term retaining slug species and 5 non-retaining slug species. The subsequent results indicate that functional kleptoplasty is not performed by E. timida until after 15 days post-metamorphosis and that by 25 days, these animals outlive many of the short-term retention species. Digestive activity was also monitored using lysosomal abundance as an indicator, revealing different patterns in starving juveniles versus adults. Starved juveniles were reintroduced to food to determine any differences in digestive activity when starvation ends, resulting in an increase in the number of kleptoplasts, but no overall change in lysosomal activity. By revealing some of the changes that occur during early development in these animals, which begin as non-kleptoplast-retaining and grow into long-term retaining slugs, this investigation provides a basis for future inquiries into the origin and development of this remarkable ability. PMID- 29020045 TI - Human amnion-derived mesenchymal stem cells promote osteogenic and angiogenic differentiation of human adipose-derived stem cells. AB - Tissue engineering using suitable mesenchymal stem cells (MSCs) shows great potential to regenerate bone defects. Our previous studies have indicated that human amnion-derived mesenchymal stem cells (HAMSCs) could promote the osteogenic differentiation of human bone marrow mesenchymal stem cells (HBMSCs). Human adipose-derived stem cells (HASCs), obtained from adipose tissue in abundance, are capable of multi-lineage differentiation. In this study, the effects of HAMSCs on osteogenic and angiogenic differentiation of HASCs were systematically investigated. Proliferation levels were measured by flow cytometry. Osteoblastic differentiation and mineralization were investigated using chromogenic alkaline phosphatase activity (ALP) activity substrate assays, Alizarin red S staining, real-time polymerase chain reaction (real-time PCR) analysis of osteogenic marker expression, and Western blotting. We found that HAMSCs increased the proliferation and osteoblastic differentiation of HASCs. Moreover, enzyme-linked immunosorbent assay (ELISA) and human umbilical vein endothelial cells (HUVECs) tube formation suggested HAMSCs enhanced angiogenic potential of HASCs via secretion of increased vascular endothelial growth factor (VEGF). Thus, we conclude that HAMSC might be a valuable therapeutic approach to promote HASCs involved bone regeneration. PMID- 29020048 TI - Correction: The complex dynamics of products and its asymptotic properties. AB - [This corrects the article DOI: 10.1371/journal.pone.0177360.]. PMID- 29020047 TI - Correlates of institutional deliveries among teenage and non-teenage mothers in Nepal. AB - INTRODUCTION: Globally, maternal age is identified as an important predictor of institutional service utilization during delivery. This study aims to assess the correlates of institutional delivery among teenage and non-teenage mothers in Nepal by using the data from Nepal Demographic and Health Survey 2011. METHODS: The study population consisted of 5391 women of reproductive age (15-49 years) who had given birth to a child within five years before the survey. Out of them, 381 (7.07%) were teenage mothers. The association between the background characteristics and institutional delivery was assessed separately for the teenage and non-teenage mothers using chi-square test and multiple logistic regression analysis. RESULTS: After adjusting for background characteristics, teenage mothers were found more likely to deliver at a health facility [AOR: 2.25; 95% CI: 1.10 4.59] in comparison to the non-teenage mothers. Place of residence, occupation, socioeconomic status, and frequency of ANC visits were associated with institutional delivery in both the teenage and non-teenage mothers. However, educational status, parity, birth preparedness and women autonomy had statistically significant association with institutional delivery among the non-teenage mothers only. None of the background characteristics were significantly associated with institutional delivery in teenage mothers only. CONCLUSIONS: This study identified a significant difference in institutional delivery service utilization among the teenage and non-teenage mothers. While the association of most of the background characteristics with institutional delivery was uniform for both teenage and non-teenage mothers, the association with educational status, parity, birth preparedness and women autonomy was significant only for non-teenage mothers. Considering this difference in the interaction of women's background characteristics with institutional delivery between teenage and non-teenage mothers might help in identifying the pain points and devise targeted interventions to encourage institutional delivery in teenage mothers or non-teenage mothers or both. PMID- 29020046 TI - Mid-infrared spectroscopy of serum, a promising non-invasive method to assess prognosis in patients with ascites and cirrhosis. AB - BACKGROUND & AIMS: Prognostic tests are critical in the management of patients with cirrhosis and ascites. Biological tests or scores perform poorly in that situation. Mid-infrared fibre evanescent wave spectroscopy (MIR-FEWS) which allows for global serum metabolic profiling may provide more relevant information by measuring a wider range of metabolic parameters in serum. Here we present the accuracy of a MIR-FEWS based predictive model for the prognosis of 6 months survival in patients with ascites and cirrhosis. METHODS: Patients with ascites were prospectively included and followed up for 6 months. MIR-FEWS spectra were measured in serum samples. The most informative spectral variables obtained by MIR-FEWS were selected by FADA algorithm and then used to build the MIR model. Accuracy of this model was assessed by ROC curves and 90%/10% Monte Carlo cross validation. MIR model accuracy for 6 months survival was compared to that of the Child-Pugh and MELD scores. RESULTS: 119 patients were included. The mean age was 57.36+/-13.70, the MELD score was 16.32+/-6.26, and the Child-Pugh score was 9.5+/-1.83. During follow-up, 23 patients died (20%). The MIR model had an AUROC for 6 months mortality of 0.90 (CI95: 0.88-0.91), the MELD 0.77 (CI95: 0.66-0.89) and Child-Pugh 0.76 (CI95: 0.66-0.88). MELD and Child-Pugh AUROCs were significantly lower than that of the MIR model (p = 0.02 and p = 0.02 respectively). Multivariate logistic regression analysis showed that MELD (p<0.05, OR:0.86;CI95:0.76-0.97), Beta blockers (p = 0.036;OR:0.20;CI95:0.04 0.90), and the MIR model (p<0.001; OR:0.50; CI95:0.37-0.66), were significantly associated with 6 months mortality. CONCLUSIONS: In this pilot study MIR-FEWS more accurately assess the 6-month prognosis of patients with ascites and cirrhosis than the MELD or Child-Pugh scores. These promising results, if confirmed by a larger study, suggest that mid infrared spectroscopy could be helpful in the management of these patients. PMID- 29020049 TI - Further insight into genetic variation and haplotype diversity of Cherry virus A from China. AB - Cherry virus A (CVA) infection appears to be prevalent in cherry plantations worldwide. In this study, the diversity of CVA isolates from 31 cherry samples collected from different orchards around Bohai Bay in northeastern China was analyzed. The complete genome of one of these isolates, ChYT52, was found to be 7,434 nt in length excluding the poly (A) tail. It shares between 79.9-98.7% identity with CVA genome sequences in GenBank, while its RdRp core is more divergent (79.1-90.7% nt identity), likely as a consequence of a recombination event. Phylogenetic analysis of ChYT52 genome with CVA genomes in Genbank resulted in at least 7 major clusters plus additional 5 isolates alone at the end of long branches suggesting the existence of further phylogroups diversity in CVA. The genetic diversity of Chinese CVA isolates from 31 samples and GenBank sequences were analyzed in three genomic regions that correspond to the coat protein, the RNA-dependent RNA polymerase core region, and the movement protein genes. With few exceptions likely representing further recombination impact, the trees various trees are largely congruent, indicating that each region provides valuable phylogenetic information. In all cases, the majority of the Chinese CVA isolates clustering in phylogroup I, together with the X82547 reference sequence from Germany. Statistically significant negative values were obtained for Tajima's D in the three genes for phylogroup I, suggesting that it may be undergoing a period of expansion. There was considerable haplotype diversity in the individual samples and more than half samples contained genetically diverse haplotypes belonging to different phylogroups. In addition, a number of statistically significant recombination events were detected in CVA genomes or in the partial genomic sequences indicating an important contribution of recombination to CVA evolution. This work provides a foundation for elucidation of the epidemiological characteristics and evolutionary history of CVA populations. PMID- 29020050 TI - Correction: Notch Ligand Delta-Like 4-Pretreated Dendritic Cells Alleviate Allergic Airway Responses by Enhancing IL-10 Production. AB - [This corrects the article DOI: 10.1371/journal.pone.0063613.]. PMID- 29020052 TI - Effects of socioeconomic status on esophageal adenocarcinoma stage at diagnosis, receipt of treatment, and survival: A population-based cohort study. AB - The incidence of esophageal adenocarcinoma (EAC) is increasing worldwide and has overtaken squamous histology in occurrence. We studied the impact of socioeconomic status (SES) on EAC stage at diagnosis, receipt of treatment, and survival. A population-based retrospective cohort study was conducted using Ontario Cancer Registry-linked administrative health data. Multinomial logistic regression was used to examine the association between SES (income quintile) and stage at EAC diagnosis and EAC treatment. Survival times following EAC diagnosis were estimated using Kaplan-Meier method. Cox proportional-hazards regression analysis was used to examine the association between SES and EAC survival. Between 2003-2012, 2,125 EAC cases were diagnosed. Median survival for the lowest SES group was 10.9 months compared to 11.6 months for the highest-SES group; the 5-year survival was 9.8% vs. 15.0%. Compared to individuals in the highest-SES group, individuals in the lowest-SES category experienced no significant difference in EAC treatment (91.6% vs. 93.3%, P = 0.314) and deaths (78.9% vs. 75.6%, P = 0.727). After controlling for covariates, no significant associations were found between SES and cancer stage at diagnosis and EAC treatment. Additionally, after controlling for age, gender, urban/rural residence, birth country, health region, aggregated diagnosis groups, cancer stage, treatment, and year of diagnosis, no significant association was found between SES and EAC survival. Moreover, increased mortality risk was observed among those with older age (P = 0.001), advanced-stage of EAC at diagnosis (P < 0.001), and those receiving chemotherapy alone, radiotherapy alone, or surgery plus chemotherapy (P < 0.001). Adjusted proportional-hazards model findings suggest that there is no association between SES and EAC survival. While the unadjusted model suggests reduced survival among individuals in lower income quintiles, this is no longer significant after adjusting for any covariate. Additionally, there is an apparent association between SES and survival when considering only those individuals diagnosed with stage 0-III EAC. These analyses suggest that the observed direct relationship between SES and survival is explained by patient-level factors including receipt of treatment, something that is potentially modifiable. PMID- 29020053 TI - Method for measuring tri-axial lumbar motion angles using wearable sheet stretch sensors. AB - BACKGROUND: Body movements, such as trunk flexion and rotation, are risk factors for low back pain in occupational settings, especially in healthcare workers. Wearable motion capture systems are potentially useful to monitor lower back movement in healthcare workers to help avoid the risk factors. In this study, we propose a novel system using sheet stretch sensors and investigate the system validity for estimating lower back movement. METHODS: Six volunteers (female:male = 1:1, mean age: 24.8 +/- 4.0 years, height 166.7 +/- 5.6 cm, weight 56.3 +/- 7.6 kg) participated in test protocols that involved executing seven types of movements. The movements were three uniaxial trunk movements (i.e., trunk flexion extension, trunk side-bending, and trunk rotation) and four multiaxial trunk movements (i.e., flexion + rotation, flexion + side-bending, side-bending + rotation, and moving around the cranial-caudal axis). Each trial lasted for approximately 30 s. Four stretch sensors were attached to each participant's lower back. The lumbar motion angles were estimated using simple linear regression analysis based on the stretch sensor outputs and compared with those obtained by the optical motion capture system. RESULTS: The estimated lumbar motion angles showed a good correlation with the actual angles, with correlation values of r = 0.68 (SD = 0.35), r = 0.60 (SD = 0.19), and r = 0.72 (SD = 0.18) for the flexion-extension, side bending, and rotation movements, respectively (all P < 0.05). The estimation errors in all three directions were less than 3 degrees . CONCLUSION: The stretch sensors mounted on the back provided reasonable estimates of the lumbar motion angles. The novel motion capture system provided three directional angles without capture space limits. The wearable system possessed great potential to monitor the lower back movement in healthcare workers and helping prevent low back pain. PMID- 29020054 TI - A novel approach for automatic visualization and activation detection of evoked potentials induced by epidural spinal cord stimulation in individuals with spinal cord injury. AB - Voluntary movements and the standing of spinal cord injured patients have been facilitated using lumbosacral spinal cord epidural stimulation (scES). Identifying the appropriate stimulation parameters (intensity, frequency and anode/cathode assignment) is an arduous task and requires extensive mapping of the spinal cord using evoked potentials. Effective visualization and detection of muscle evoked potentials induced by scES from the recorded electromyography (EMG) signals is critical to identify the optimal configurations and the effects of specific scES parameters on muscle activation. The purpose of this work was to develop a novel approach to automatically detect the occurrence of evoked potentials, quantify the attributes of the signal and visualize the effects across a high number of scES parameters. This new method is designed to automate the current process for performing this task, which has been accomplished manually by data analysts through observation of raw EMG signals, a process that is laborious and time-consuming as well as prone to human errors. The proposed method provides a fast and accurate five-step algorithms framework for activation detection and visualization of the results including: conversion of the EMG signal into its 2-D representation by overlaying the located signal building blocks; de-noising the 2-D image by applying the Generalized Gaussian Markov Random Field technique; detection of the occurrence of evoked potentials using a statistically optimal decision method through the comparison of the probability density functions of each segment to the background noise utilizing log likelihood ratio; feature extraction of detected motor units such as peak-to-peak amplitude, latency, integrated EMG and Min-max time intervals; and finally visualization of the outputs as Colormap images. In comparing the automatic method vs. manual detection on 700 EMG signals from five individuals, the new approach decreased the processing time from several hours to less than 15 seconds for each set of data, and demonstrated an average accuracy of 98.28% based on the combined false positive and false negative error rates. The sensitivity of this method to the signal-to-noise ratio (SNR) was tested using simulated EMG signals and compared to two existing methods, where the novel technique showed much lower sensitivity to the SNR. PMID- 29020051 TI - A combination of plasma phospholipid fatty acids and its association with incidence of type 2 diabetes: The EPIC-InterAct case-cohort study. AB - BACKGROUND: Combinations of multiple fatty acids may influence cardiometabolic risk more than single fatty acids. The association of a combination of fatty acids with incident type 2 diabetes (T2D) has not been evaluated. METHODS AND FINDINGS: We measured plasma phospholipid fatty acids by gas chromatography in 27,296 adults, including 12,132 incident cases of T2D, over the follow-up period between baseline (1991-1998) and 31 December 2007 in 8 European countries in EPIC InterAct, a nested case-cohort study. The first principal component derived by principal component analysis of 27 individual fatty acids (mole percentage) was the main exposure (subsequently called the fatty acid pattern score [FA-pattern score]). The FA-pattern score was partly characterised by high concentrations of linoleic acid, stearic acid, odd-chain fatty acids, and very-long-chain saturated fatty acids and low concentrations of gamma-linolenic acid, palmitic acid, and long-chain monounsaturated fatty acids, and it explained 16.1% of the overall variability of the 27 fatty acids. Based on country-specific Prentice-weighted Cox regression and random-effects meta-analysis, the FA-pattern score was associated with lower incident T2D. Comparing the top to the bottom fifth of the score, the hazard ratio of incident T2D was 0.23 (95% CI 0.19-0.29) adjusted for potential confounders and 0.37 (95% CI 0.27-0.50) further adjusted for metabolic risk factors. The association changed little after adjustment for individual fatty acids or fatty acid subclasses. In cross-sectional analyses relating the FA pattern score to metabolic, genetic, and dietary factors, the FA-pattern score was inversely associated with adiposity, triglycerides, liver enzymes, C-reactive protein, a genetic score representing insulin resistance, and dietary intakes of soft drinks and alcohol and was positively associated with high-density lipoprotein cholesterol and intakes of polyunsaturated fat, dietary fibre, and coffee (p < 0.05 each). Limitations include potential measurement error in the fatty acids and other model covariates and possible residual confounding. CONCLUSIONS: A combination of individual fatty acids, characterised by high concentrations of linoleic acid, odd-chain fatty acids, and very long-chain fatty acids, was associated with lower incidence of T2D. The specific fatty acid pattern may be influenced by metabolic, genetic, and dietary factors. PMID- 29020055 TI - Danshen protects against early-stage alcoholic liver disease in mice via inducing PPARalpha activation and subsequent 4-HNE degradation. AB - Alcoholic liver disease (ALD) is a type of chronic liver disease caused by long term heavy ethanol consumption. Danshen is one of the most commonly used substances in traditional Chinese medicine and has been widely used for the treatment of various diseases, and most frequently, the ALD. The current study aims to determine the potential beneficial effect of Danshen administration on ALD and to clarify the underlying molecular mechanisms. Danshen administration improved liver pathologies of ALD, attenuated alcohol-induced increment of hepatic 4-Hydroxynonenal (4-HNE) formation, and prevented hepatic Peroxisome proliferators activated receptor alpha (PPARalpha) suppression in response to chronic alcohol consumption. Cell culture studies revealed that both hepatoprotective effect and increased intracellular 4-HNE clearance instigated by Danshen supplementation are PPARalpha-dependent. In conclusion, Danshen administration can protect against ALD via inducing PPARalpha activation and subsequent 4-HNE degradation. PMID- 29020056 TI - Differences in change blindness to real-life scenes in adults with autism spectrum conditions. AB - People often fail to detect large changes to visual scenes following a brief interruption, an effect known as 'change blindness'. People with autism spectrum conditions (ASC) have superior attention to detail and better discrimination of targets, and often notice small details that are missed by others. Together these predict people with autism should show enhanced perception of changes in simple change detection paradigms, including reduced change blindness. However, change blindness studies to date have reported mixed results in ASC, which have sometimes included no differences to controls or even enhanced change blindness. Attenuated change blindness has only been reported to date in ASC in children and adolescents, with no study reporting reduced change blindness in adults with ASC. The present study used a change blindness flicker task to investigate the detection of changes in images of everyday life in adults with ASC (n = 22) and controls (n = 22) using a simple change detection task design and full range of original scenes as stimuli. Results showed the adults with ASC had reduced change blindness compared to adult controls for changes to items of marginal interest in scenes, with no group difference for changes to items of central interest. There were no group differences in overall response latencies to correctly detect changes nor in the overall number of missed detections in the experiment. However, the ASC group showed greater missed changes for marginal interest changes of location, showing some evidence of greater change blindness as well. These findings show both reduced change blindness to marginal interest changes in ASC, based on response latencies, as well as greater change blindness to changes of location of marginal interest items, based on detection rates. The findings of reduced change blindness are consistent with clinical reports that people with ASC often notice small changes to less salient items within their environment, and are in-line with theories of enhanced local processing and greater attention to detail in ASC. The findings of lower detection rates for one of the marginal interest conditions may be related to problems in shifting attention or an overly focused attention spotlight. PMID- 29020057 TI - High dose teriparatide (rPTH1-34) therapy increases callus volume and enhances radiographic healing at 8-weeks in a massive canine femoral allograft model. AB - Small animal studies have demonstrated significant high-dose recombinant parathyroid hormone1-34 (rPTH1-34) effects on intercalary allograft healing. Towards a human adjuvant therapy to decrease non-unions, we evaluated rPTH1-34 safety and efficacy in a clinically relevant canine femoral allograft model. Adult female mongrel hounds (n = 20) received a 5cm mid-diaphyseal osteotomy reconstructed with a plated allograft, and were randomized to: 1) Placebo (n = 5; daily saline), 2) Continuous rPTH1-34 (n = 7; 5 MUg/kg/day s.c. from day 1-55 post-op), or 3) Delayed rPTH1-34 (n = 8; 5 MUg/kg/day s.c. from day 14-28 post op). Safety was assessed by physical behavior and blood calcium monitoring. Cone beam CT (CB-CT) was performed on days 14, 28 and 56 post-op to assess 2D cortical healing, 3D bone volume, and Union Ratio. Biomechanical testing and dynamic histomorphometry were also performed. The high drug dose was poorly tolerated, as most dogs receiving rPTH1-34 had to be given intravenous saline, and one dog died from hypercalcemia. Continuous rPTH1-34 significantly increased 2D healing and callus volumes at 4-weeks versus Placebo, and sustained the significant increase in cortical union at 8-week (p<0.05). These rPTH1-34 effects were confirmed by histomorphometry, revealing significant increases in mineral apposition rates (MAR) on host bone and graft-host junctions (p<0.05). Delayed rPTH1-34 significantly increased callus volume and MAR at 8 weeks (p<0.05). Although no biomechanical differences were observed, as expected for early healing, the results demonstrated that 2D RUST scoring significantly correlated with torsional biomechanics (p<0.01). In conclusion, 8-weeks of intermittent high-dose rPTH1-34 treatment significantly increases callus formation and accelerates bony union of intercalary massive allografts in a clinically relevant canine model, but with serious side-effects from hypercalcemia. PMID- 29020058 TI - HIV transmitted/founder vaccines elicit autologous tier 2 neutralizing antibodies for the CD4 binding site. AB - Here we report the construction, antigenicity and initial immunogenicity testing of DNA and modified vaccinia Ankara (MVA) vaccines expressing virus-like particles (VLPs) displaying sequential clade C Envelopes (Envs) that co-evolved with the elicitation of broadly neutralizing antibodies (bnAbs) to the CD4 binding site (CD4bs) in HIV-infected individual CH0505. The VLP-displayed Envs showed reactivity for conformational epitopes displayed on the receptor-binding form of Env. Two inoculations of the DNA-T/F vaccine, followed by 3 inoculations of the MVA-T/F vaccine and a final inoculation of the MVA-T/F plus a gp120-T/F protein vaccine elicited nAb to the T/F virus in 2 of 4 rhesus macaques (ID50 of ~175 and ~30). Neutralizing Ab plateaued at 100% neutralization and mapped to the CD4bs like the bnAbs elicited in CH0505. The nAb did not have breadth for other tier 2 viruses. Immunizations with T/F followed by directed-lineage vaccines, both with and without co-delivery of directed-lineage gp120 boosts, failed to elicit tier 2 neutralizing Ab for the CD4bs. Thus, pulsed exposures to DNA and MVA-expressed VLPs plus gp120 protein of a T/F Env can induce autologous tier 2 nAbs to the CD4bs. PMID- 29020059 TI - The relation between face-emotion recognition and social function in adolescents with autism spectrum disorders: A case control study. AB - An altered processing of emotions may contribute to a reduced ability for social interaction and communication in autism spectrum disorder, ASD. We investigated how face-emotion recognition in ASD is different from typically developing across adolescent age groups. Fifty adolescents diagnosed with ASD and 49 typically developing (age 12-21 years) were included. The ASD diagnosis was underpinned by parent-rated Social Communication Questionnaire. We used a cued GO/ NOGO task with pictures of facial expressions and recorded reaction time, intra-individual variability of reaction time and omissions/commissions. The Social Responsiveness Scale was used as a measure of social function. Analyses were conducted for the whole group and for young (< 16 years) and old (>= 16 years) age groups. We found no significant differences in any task measures between the whole group of typically developing and ASD and no significant correlations with the Social Responsiveness Scale. However, there was a non-significant tendency for longer reaction time in the young group with ASD (p = 0.099). The Social Responsiveness Scale correlated positively with reaction time (r = 0.30, p = 0.032) and intra individual variability in reaction time (r = 0.29, p = 0.037) in the young group and in contrast, negatively in the old group (r = -0.23, p = 0.13; r = -0.38, p = 0.011, respectively) giving significant age group interactions for both reaction time (p = 0.008) and intra-individual variability in reaction time (p = 0.001). Our findings suggest an age-dependent association between emotion recognition and severity of social problems indicating a delayed development of emotional understanding in ASD. It also points towards alterations in top-down attention control in the ASD group. This suggests novel disease-related features that should be investigated in more details in experimental settings. PMID- 29020060 TI - Phosphatidylinositol-4,5-bisphosphate is required for KCNQ1/KCNE1 channel function but not anterograde trafficking. AB - The slow delayed-rectifier potassium current (IKs) is crucial for human cardiac action potential repolarization. The formation of IKs requires co-assembly of the KCNQ1 alpha-subunit and KCNE1 beta-subunit, and mutations in either of these subunits can lead to hereditary long QT syndrome types 1 and 5, respectively. It is widely recognised that the KCNQ1/KCNE1 (Q1/E1) channel requires phosphatidylinositol-4,5-bisphosphate (PIP2) binding for function. We previously identified a cluster of basic residues in the proximal C-terminus of KCNQ1 that form a PIP2/phosphoinositide binding site. Upon charge neutralisation of these residues we found that the channel became more retained in the endoplasmic reticulum, which raised the possibility that channel-phosphoinositide interactions could play a role in channel trafficking. To explore this further we used a chemically induced dimerization (CID) system to selectively deplete PIP2 and/or phosphatidylinositol-4-phosphate (PI(4)P) at the plasma membrane (PM) or Golgi, and we subsequently monitored the effects on both channel trafficking and function. The depletion of PIP2 and/or PI(4)P at either the PM or Golgi did not alter channel cell-surface expression levels. However, channel function was extremely sensitive to the depletion of PIP2 at the PM, which is in contrast to the response of other cardiac potassium channels tested (Kir2.1 and Kv11.1). Surprisingly, when using the CID system IKs was dramatically reduced even before dimerization was induced, highlighting limitations regarding the utility of this system when studying processes highly sensitive to PIP2 depletion. In conclusion, we identify that the Q1/E1 channel does not require PIP2 or PI(4)P for anterograde trafficking, but is heavily reliant on PIP2 for channel function once at the PM. PMID- 29020062 TI - Seasonal and circadian biases in bird tracking with solar GPS-tags. AB - Global Positioning System (GPS) tags are nowadays widely used in wildlife tracking. This geolocation technique can suffer from fix loss biases due to poor satellite GPS geometry, that result in tracking data gaps leading to wrong research conclusions. In addition, new solar-powered GPS tags deployed on birds can suffer from a new "battery drain bias" currently ignored in movement ecology analyses. We use a GPS tracking dataset of bearded vultures (Gypaetus barbatus), tracked for several years with solar GPS tags, to evaluate the causes and triggers of fix and data retrieval loss biases. We compare two models of solar GPS tags using different data retrieval systems (Argos vs GSM-GPRS), and programmed with different duty cycles. Neither of the models was able to accomplish the duty cycle programed initially. Fix and data retrieval loss rates were always greater than expected, and showed non-random gaps in GPS locations. Number of fixes per month of tracking was a bad criterion to identify tags with smaller biases. Fix-loss rates were four times higher due to battery drain than due to poor GPS satellite geometry. Both tag models were biased due to the uneven solar energy available for the recharge of the tag throughout the annual cycle, resulting in greater fix-loss rates in winter compared to summer. In addition, we suggest that the bias found along the diurnal cycle is linked to a complex three factor interaction of bird flight behavior, topography and fix interval. More fixes were lost when vultures were perching compared to flying, in rugged versus flat topography. But long fix-intervals caused greater loss of fixes in dynamic (flying) versus static situations (perching). To conclude, we emphasize the importance of evaluating fix-loss bias in current tracking projects, and deploying GPS tags that allow remote duty cycle updates so that the most appropriate fix and data retrieval intervals can be selected. PMID- 29020061 TI - Catching-up: Children with developmental coordination disorder compared to healthy children before and after sensorimotor therapy. AB - The aims of the present study were to (a) compare healthy children in terms of sensorimotor maturity to untreated children diagnosed with developmental coordination disorder (DCD) and (b) compare healthy children to diagnosed children following completed treatment with sensorimotor therapy. Participants were 298 children, 196 boys and 102 girls, distributed into a Norm group of healthy children (n = 99) and a group of children diagnosed with DCD (n = 199) with a total mean age of 8.77 years (SD = 2.88). Participants in both groups were assessed on instruments aimed to detect sensorimotor deviations. The children in the DCD group completed, during on average 36 months, sensorimotor therapy which comprised stereotypical fetal- and infant movements, vestibular stimulation, tactile stimulation, auditory stimulation, complementary play exercises, gross motor milestones, and sports-related gross motor skills. At the final visit a full assessment was once more performed. Results showed that the Norm group performed better on all sensorimotor tests as compared to the untreated children from the DCD group, with the exception of an audiometric test where both groups performed at the same level. Girls performed better on tests assessing proprioceptive and balance abilities. Results also showed, after controls for natural maturing effects, that the children from the DCD group after sensorimotor therapy did catch up with the healthy children. The concept of "catching-up" is used within developmental medicine but has not earlier been documented with regard to children and youth in connection with DCD. PMID- 29020063 TI - Economic burden of malaria and predictors of cost variability to rural households in south-central Ethiopia. AB - BACKGROUND: While recognizing the recent remarkable achievement in the global malaria reduction, the disease remains a challenge to the malaria endemic countries in Africa. Beyond the huge health consequence of malaria, policymakers need to be informed about the economic burden of the disease to the households. However, evidence on the economic burden of malaria in Ethiopia is scanty. The aims of this study were to estimate the economic burden of malaria episode and to identify predictors of cost variability to the rural households. METHODS: A prospective costing approach from a household perspective was employed. A total of 190 malaria patients were enrolled to the study from three health centers and nine health posts in Adami Tullu district in south-central Ethiopia, in 2015. Primary data were collected on expenditures due to malaria, forgone working days because of illness, socioeconomic and demographic situation, and households' assets. Quantile regression was applied to predict factors associated with the cost variation. Socioeconomic related inequality was measured using concentration index and concentration curve. RESULTS: The median cost of malaria per episode to the household was USD 5.06 (IQR: 2.98-8.10). The direct cost accounted for 39%, while the indirect counterpart accounted for 61%. The history of malaria in the last six months and the level of the facility visited in the health system predominantly influenced the direct cost. The indirect cost was mainly influenced by the availability of antimalarial drugs in the health facility. The concentration curve and the concentration index for direct cost indicate significant pro-rich inequality. Plasmodium falciparum is significantly more costly for households compared to Plasmodium vivax. CONCLUSION: The economic burden of malaria to the rural households in Ethiopia was substantial-mainly to the poor-indicating that reducing malaria burden could contribute to the poverty reduction as well. PMID- 29020064 TI - Canine companionship is associated with modification of attentional bias in posttraumatic stress disorder. AB - Attentional bias towards aversive stimuli has been demonstrated in the anxiety disorders and in posttraumatic stress disorder, and attentional bias modification has been proposed as a candidate treatment. This study rigorously assessed attentional bias towards aversive and pleasant visual imagery associated with the presence or absence of a familiar service canine in 23 veterans with chronic military-related posttraumatic stress disorder. Participants were repeatedly tested with and without their service canines present on two tasks designed to elicit spontaneous visual attention to facial and scenic image pairs, respectively. Each stimulus contrasted an emotive image with a neutral image. Via eye-tracking, the difference in visual attention directed to each image was analyzed as a function of the valence contrast and presence/absence of the canine. Across both tasks, the presence of a familiar service canine attenuated the normative attentional bias towards aversive image content. In the facial task, presence of the service canine specifically reduced attention toward angry faces. In that task, as well, accumulated days with the service canine similarly modulated attention toward facial emotion. The results suggest that the presence of a familiar service canine is associated with attenuation of attentional bias to aversive stimuli in chronic military-service-related posttraumatic stress disorder. Questions remain regarding the generalization of such effects to other populations, their dependence on the familiarity, breed, and training of the canine, and on social context. PMID- 29020065 TI - Gold nanoparticles stabilized with betacyclodextrin-2-amino-4-(4 chlorophenyl)thiazole complex: A novel system for drug transport. AB - While 2-amino-4-(4-chlorophenyl)thiazole (AT) drug and thiazole derivatives have several biological applications, these compounds present some drawbacks, such as low aqueous solubility and instability. A new complex of betaCD-AT has been synthesized to increase AT solubility and has been used as a substrate for the deposit of solid-state AuNPs via magnetron sputtering, thus forming the betaCD-AT AuNPs ternary system, which is stable in solution. Complex formation has been confirmed through powder X-ray diffraction and 1D and 2D nuclear magnetic resonance. Importantly, the amine and sulfide groups of AT remained exposed and can interact with the surfaces of the AuNPs. The complex association constant (970 M-1) has been determined using phase solubility analysis. AuNPs formation (32 nm average diameter) has been studied by UV-Visible spectroscopy, transmission/scanning electron microscopy and energy-dispersive X-ray analysis. The in vitro permeability assays show that effective permeability of AT increased using betaCD. In contrast, the ternary system did not have the capacity to diffuse through the membrane. Nevertheless, the antibacterial assays have demonstrated that AT is transferred from betaCD-AT-AuNPs, being available to exert its antibacterial activity. In conclusion, this novel betaCD-AT-AuNPs ternary system is a promising alternative to improve the delivery of AT drugs in therapy. PMID- 29020066 TI - Characteristics of the memory sources of dreams: A new version of the content matching paradigm to take mundane and remote memories into account. AB - Several studies have demonstrated that dream content is related to the waking life of the dreamer. However, the characteristics of the memory sources incorporated into dreams are still unclear. We designed a new protocol to investigate remote memories and memories of trivial experiences, both relatively unexplored in dream content until now. Upon awakening, for 7 days, participants identified the waking life elements (WLEs) related to their dream content and characterized them and their dream content on several scales to assess notably emotional valence. Thanks to this procedure, they could report WLEs from the whole lifespan, and mundane ones before they had been forgotten. Participants (N = 40, 14 males, age = 25.2 +/- 7.6) reported 6.2 +/- 2.0 dreams on average. For each participant, 83.4% +/- 17.8 of the dream reports were related to one or more WLEs. Among all the WLEs incorporated into dreams dated by the participants (79.3 +/- 19%), 40.2 +/- 30% happened the day before the dream, 26.1 +/- 26% the month before (the day before excluded), 15.8 +/- 21% the year before the dream (the month before excluded), and 17.9 +/- 24% happened more than one year before the dream. As could be expected from previous studies, the majority of the WLEs incorporated into dreams were scored as important by the dreamers. However, this was not true for incorporated WLEs dating from the day before the dream. In agreement with Freud's observations, the majority of the day residues were scored as mundane. Finally, for both positive and negative WLEs incorporated into dreams, the dreamt version of the WLE was rated as emotionally less intense than the original WLE. This result, showing that dreams tend to attenuate the emotional tone of waking-life memories towards a more neutral one, argues in favor of the emotional regulation hypothesis of dreaming. PMID- 29020067 TI - Interoception and sexual response in women with low sexual desire. AB - Sexual concordance is defined as the association between genital response and self-reported sexual arousal. Though one might predict a strong association between sexual concordance and awareness of other internal physiological sensations (termed interoception), past research on sexually healthy women has not found these different domains to be related. The aim of the present study was to test the association between interoception and sexual concordance in a clinical sample of women with Sexual Interest/Arousal Disorder (SIAD). Fifty-two women with SIAD completed the Multidimensional Assessment of Interoceptive Awareness (MAIA), a validated self-report measure of interoception, and completed a heart-beat accuracy test, an objective measure of interoception. They also participated in a laboratory-based assessment of physiological sexual arousal and self-reported sexual arousal while viewing an erotic film. Mental and physiological arousal were correlated at r = 0.27 (range -0.80 to 0.95). There was no significant association between sexual concordance and women's heartrate awareness. However, five aspects of interoceptive awareness (noticing, emotional awareness, self-regulation, body-listening, and trusting), were predictive of lower, and one aspect (not-distracting) was predictive of higher sexual concordance. We discuss the findings in relation to the role of emotions and arousal states in the interoception-sexual concordance relationship. PMID- 29020068 TI - Integrated modeling and analysis of intracellular and intercellular mechanisms in shaping the interferon response to viral infection. AB - The interferons (IFNs) responses to viral infection are heterogeneous, while the underlying mechanisms for variability among cells are still not clear. In this study, we developed a hybrid model to systematically identify the sources of IFN induction heterogeneity. The experiment-integrated simulation demonstrated that the viral dose/type, the diversity in transcriptional factors activation and the intercellular paracrine signaling could strikingly shape the heterogeneity of IFN expression. We further determined that the IFNbeta and IFNlambda1 induced diverse dynamics of IFN-stimulated genes (ISGs) production. Collectively, our findings revealed the intracellular and intercellular mechanisms contributing to cell-to cell variation in IFN induction, and further demonstrated the significant effects of IFN heterogeneity on antagonizing viruses. PMID- 29020070 TI - Correction: Mitochondrial Uptake of Thiamin Pyrophosphate: Physiological and Cell Biological Aspects. AB - [This corrects the article DOI: 10.1371/journal.pone.0073503.]. PMID- 29020069 TI - Prevalence of risk factors for acquiring measles during the 2011 outbreak in Quebec and impact of the province-wide school-based vaccination campaign on population immunity. AB - BACKGROUND: A large measles outbreak occurred in Quebec, Canada, in 2011. Although nearly two-thirds of the cases occurred in only two health districts, a mass vaccination campaign targeting all Quebec elementary and high school students without valid two-dose history was undertaken to prevent future outbreaks. We compared rates of non-vaccination and age at first measles vaccine dose among students in the two most-affected districts and the rest of the province and estimated the improvement in overall student measles immunity due to the mass school-based vaccination campaign. METHODS: Data were extracted from the provincial vaccination registry for students in kindergarten to grade 11 during the 2011/2012 school year. A telephone survey was conducted in three sub-groups: students whose first measles vaccine dose recorded in the vaccination registry was received during the 2011 school vaccination campaign; students with no dose recorded in the registry whose parents refused receipt during the school campaign; and students with no dose recorded in the registry and no information about parental consent/refusal during the school campaign. RESULTS: Neither the prevalence of being non-vaccinated nor a younger age at first pediatric dose were higher in the two most-affected districts versus the rest of the province. The school campaign vaccinated nearly 8% of all students including 7% who previously received at least one dose. Before the outbreak, 3% of students were not vaccinated and one-third of these (1%/3%) were vaccinated during the campaign. The campaign likely increased the absolute school population immunity by just 1.7%. CONCLUSION: The concentration of measles cases in the two most-affected health districts during the large Quebec outbreak is not explained by more students who were unvaccinated or who had received their first vaccine dose at a younger age. The vaccination campaign reached one-third of unvaccinated students and only marginally improved population immunity. PMID- 29020071 TI - Correction: Pre- and posttreatment with hydrogen sulfide prevents ventilator induced lung injury by limiting inflammation and oxidation. AB - [This corrects the article DOI: 10.1371/journal.pone.0176649.]. PMID- 29020072 TI - Correcting for tissue nitrogen excretion in multiple breath washout measurements. AB - Nitrogen excreted from body tissues impacts the calculation of multiple breath nitrogen washout (MBWN2) outcomes. The aim of this study was to determine the effect of tissue N2 on MBWN2 outcomes in both healthy subjects and patients with CF and to assess whether it is possible to correct for tissue N2. The contribution of tissue N2 to MBWN2 outcomes was estimated by comparing MBWN2 derived functional residual capacity (FRCN2) to FRC measured by body plethysmography (FRCpleth) and by comparing MBW outcome measures derived from MBWN2 and sulfur hexafluoride MBW (MBWSF6). Compared to plethysmography and MBWSF6, MBWN2 overestimated FRC and lung clearance index (LCI). Application of mathematical tissue N2 corrections reduced FRCN2 values closer to FRCpleth in health and reduced LCIN2 in both health and CF, but did not explain all of the differences observed between N2-dependent and -independent techniques. Use of earlier washout cut-offs could reduce the influence of tissue N2. Applying tissue N2 corrections to LCIN2 measurements did not significantly affect the interpretation of treatment effects reported in a previously published interventional trial. While tissue N2 excretion likely has an impact on MBWN2 outcomes, better understanding of the nature of this phenomenon is required before routine correction can be implemented into current MBWN2 protocols. PMID- 29020073 TI - Phylloxerids share ancestral carotenoid biosynthesis genes of fungal origin with aphids and adelgids. AB - Gene transfer among reproductively isolated organisms can lead to novel phenotypes and increased fitness. Among the Sternorrhyncha, a suborder of plant sap-feeding hemipteran insects, both aphids and adelgids acquired carotenoid biosynthesis genes from a fungal donor that result in ecologically relevant pigmentation. Phylloxerids form another family that are closely related to aphids and adelgids and share similar pigmentation, but are largely uncharacterized for their presence and number of pigment genes that have duplicated among aphids. Here, we examined the transcriptomes of nine phylloxerid species, and performed PCR to amplify carotenoid genes from their genomic DNA. We identified carotenoid cyclase/synthase and desaturase genes in each species and demonstrated that they share the common fungal origin as those of aphids and adelgids based on their exon-intron gene structures and phylogenetic relationships. The phylogenetic analyses also indicated that carotenoid genes evolved following the differentiation of aphids, adelgids, and phylloxerids at the levels of family, genus, and species. Unlike aphids that duplicated these genes in their genomes, phylloxerids maintained only single copies, and some species may lack expression of certain genes. These results suggest that the phylloxerid lifestyle undergoes reduced selection pressure to expand carotenoid synthesis genes, and provides insight into these gene functions in insects. PMID- 29020075 TI - Correction: Mechanism(S) Involved in the Colon-Specific Expression of the Thiamine Pyrophosphate (Tpp) Transporter. AB - [This corrects the article DOI: 10.1371/journal.pone.0149255.]. PMID- 29020074 TI - The ability of algal organic matter and surface runoff to promote the abundance of pathogenic and non-pathogenic strains of Vibrio parahaemolyticus in Long Island Sound, USA. AB - Food safety is a major concern in the shellfish industry, as severe illness can result from consuming shellfish that have accumulated waterborne pathogens. Shellfish harvesting areas are typically monitored for indicator bacteria such as fecal coliforms that serve as proxies for enteric pathogens although these indicators have shown little relation to some naturally occurring pathogenic bacteria such as Vibrio parahaemolyticus. To examine the dynamics and ecology of pathogenic and non-pathogenic strains of V. parahaemolyticus and address the relevance of indicator bacteria in predicting V. parahaemolyticus concentrations, field surveys and experiments were carried out in western Long Island Sound, NY, USA, a region that has experienced recent outbreaks of shellfish contaminated with V. parahaemolyticus. Pathogenic and non-pathogenic strains were quantified via PCR detection of marker genes and most probable number techniques. Field survey data showed little correspondence between fecal coliforms and V. parahaemolyticus, but significant correlations between V. parahaemolyticus and an alternative indicator, enterococci, and between V. parahaemolyticus and short term (48 h) rainfall were observed. Experiments demonstrated that enrichment of seawater with phytoplankton-derived dissolved organic matter significantly increased the concentration of total V. parahaemolyticus and the presence pathogenic V. parahaemolyticus, but higher temperatures did not. Collectively, these study results suggest that fecal coliforms may fail to account for the full suite of important shellfish pathogens but that enterococci could provide a potential alternative or supplement to shellfish sanitation monitoring. Given the ability of algal-derived dissolved organic matter to promote the growth of pathogenic V. parahaemolyticus, restricting nutrient inputs into coastal water bodies that promote algal blooms may indirectly decrease the proliferation of V. parahaemolyticus and protect public health. PMID- 29020077 TI - Flight aerodynamics in enantiornithines: Information from a new Chinese Early Cretaceous bird. AB - We describe an exquisitely preserved new avian fossil (BMNHC-PH-919) from the Lower Cretaceous Yixian Formation of eastern Inner Mongolia, China. Although morphologically similar to Cathayornithidae and other small-sized enantiornithines from China's Jehol Biota, many morphological features indicate that it represents a new species, here named Junornis houi. The new fossil displays most of its plumage including a pair of elongated, rachis-dominated tail feathers similarly present in a variety of other enantiornithines. BMNHC-PH-919 represents the first record of a Jehol enantiornithine from Inner Mongolia, thus extending the known distribution of these birds into the eastern portion of this region. Furthermore, its well-preserved skeleton and wing outline provide insight into the aerodynamic performance of enantiornithines, suggesting that these birds had evolved bounding flight-a flight mode common to passeriforms and other small living birds-as early as 125 million years ago. PMID- 29020076 TI - Recombinant laccase from Pediococcus acidilactici CECT 5930 with ability to degrade tyramine. AB - Biogenic amines degradation by bacterial laccases is little known, so we have cloned and heterologously expressed, in E. coli, a new laccase from Pediococcus acidilactici CECT 5930 (Lpa5930), a lactic acid bacterium commonly found in foods able to degrade tyramine. The recombinant enzyme has been characterized by physical and biochemical assays. Here we report the optimization of expression and purification procedures of this laccase. DNA encoding sequence of laccase from P. acidilactici was amplified by PCR and cloned into the expression plasmid pET28a for induction by isopropyl-beta-D-thiogalactoipyranoside. Protein expression was performed in E. coli BL21(DE3) harboring pGro7 plasmid expressing a chaperone folding assistant induced by arabinose. Purification was performed by column metal-chelating chromatography on Ni-NTA-agarose. The laccase enzyme obtained has an apparent molecular mass of ~60 kDa, an optimum temperature activity toward 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) of 28 degrees C, and was quickly inactivated at temperatures higher than 70 degrees C. The apparent Km value for ABTS was 1.7 mM and the Vmax obtained was 24 U/mg. In addition to ABTS, recombinant Lpa5930 laccase degraded the biogenic amine tyramine at pH 9.5 and pH 4.0 with or without ABTS as a mediator. Tyramine degradation by laccases could solve the problems generated in food due to the presence of this toxic compound. PMID- 29020078 TI - Touch-flavor transference: Assessing the effect of packaging weight on gustatory evaluations, desire for food and beverages, and willingness to pay. AB - Product packaging serves a number of distinct functions and influences the way in which consumers respond to various product offerings. The research reported here examines whether the haptic characteristics of a non-diagnostic product packaging cue, namely its weight, affects the response of consumers. This article reviews existing research on haptic transference and proposes a conceptual framework to explore how the weight of product packaging affects the flavor of the food or beverages, and, in turn, consumers' desire for consumption and willingness to pay. Two studies demonstrate that an increase in packaging weight affects both desire and willingness to pay for the product. These effects are serially mediated by perceived flavor intensity and overall flavor evaluation. Based on these insights, implications for the design of food and beverages packaging are discussed. PMID- 29020080 TI - Correction: Translocation of the neonicotinoid seed treatment clothianidin in maize. AB - [This corrects the article DOI: 10.1371/journal.pone.0173836.]. PMID- 29020079 TI - Digitally enhanced recovery: Investigating the use of digital self-tracking for monitoring leisure time physical activity of cardiovascular disease (CVD) patients undergoing cardiac rehabilitation. AB - Research has shown that physical activity is essential in the prevention and treatment of chronic diseases like cardiovascular disease (CVD). Smart wearables (e.g., smartwatches) are increasingly used to foster and monitor human behaviour, including physical activity. However, despite this increased usage, little evidence is available on the effects of smart wearables in behaviour change. The little research which is available typically focuses on the behaviour of healthy individuals rather than patients. In this study, we investigate the effects of using smart wearables by patients undergoing cardiac rehabilitation. A field experiment involving 29 patients was designed and participants were either assigned to the study group (N = 13 patients who finished the study and used a self-tracking device) or the control group (N = 16 patients who finished the study and did not use a device). For both groups data about physiological performance during cardiac stress test was collected at the beginning (baseline), in the middle (in week 6, at the end of the rehabilitation in the organized rehabilitation setting), and at the end of the study (after 12 weeks, at the end of the rehabilitation, including the organized rehabilitation plus another 6 weeks of self-organized rehabilitation). Comparing the physiological performance of both groups, the data showed significant differences. The participants in the study group not only maintained the same performance level as during the midterm examination in week 6, they improved performance even further during the six weeks that followed. The results presented in this paper provide evidence for positive effects of digital self-tracking by patients undergoing cardiac rehabilitation on performance of the cardiovascular system. In this way, our study provides novel insight about the effects of the use of smart wearables by CVD patients. Our findings have implications for the design of self-management approaches in a patient rehabilitation setting. In essence, the use of smart wearables can prolong the success of the rehabilitation outside of the organized rehabilitation setting. PMID- 29020082 TI - Expression patterns of signaling lymphocytic activation molecule family members in peripheral blood mononuclear cell subsets in patients with systemic lupus erythematosus. AB - Genome-wide linkage analysis studies (GWAS) studies in systemic lupus erythematosus (SLE) identified the 1q23 region on human chromosome 1, containing the Signaling Lymphocytic Activation Molecule Family (SLAMF) cluster of genes, as a lupus susceptibility locus. The SLAMF molecules (SLAMF1-7) are immunoregulatory receptors expressed predominantly on hematopoietic cells. Activation of cells of the adaptive immune system is aberrant in SLE and dysregulated expression of certain SLAMF molecules has been reported. We examined the expression of SLAMF1-7 on peripheral blood T cells, B cells, monocytes, and their respective differentiated subsets, in patients with SLE and healthy controls in a systematic manner. SLAMF1 levels were increased on both T cell and B cells and their differentiated subpopulations in patients with SLE. SLAMF2 was increased on SLE CD4+ and CD8+ T cells. The frequency of SLAMF4+ and SLAMF7+ central memory and effector memory CD8+ T cells was reduced in SLE patients. Naive CD4+ and CD8+ SLE T cells showed a slight increase in SLAMF3 levels. No differences were seen in the expression of SLAMF5 and SLAMF6 among SLE patients and healthy controls. Overall, the expression of various SLAMF receptors is dysregulated in SLE and may contribute to the immunopathogenesis of the disease. PMID- 29020081 TI - Heat stress induces expression of HSP genes in genetically divergent chickens. AB - BACKGROUND: Chickens are animals that are sensitive to thermal stress, which may decrease their production level in terms that it affects feed intake and thus, decreasing body weight gain. The Heat Shock Factors (HSF) and Heat Shock Proteins (HSP) genes are involved in the key cellular defense mechanisms during exposure in hot environments. Aimed with this study to analyze the expression of HSF1, HSF3, HSP70 and HSP90 genes in two local breeds (Peloco and Caneluda) and a commercial broiler line (Cobb 500(r)) to verify differences in resistance of these chicken to Heat stress treatment. Chicken were submitted to heat stress under an average temperature of 39 degrees C +/- 1. RESULTS: Under stress environment, the HSP70 and HSP90 genes were more expressed in backyard chickens than in broiler. There was a difference in HSP70 and HSP90 expression between Caneluda and Cobb and between Peloco and Cobb under stress and comfort environment respectively. HSP70 expression is higher in local breeds during heat stress than in a commercial broiler line. No significant differences were observed in the expression of HSF1 and HSF3 genes between breeds or environments. CONCLUSIONS: HSP70 and HSP90 genes are highly expressed, HSF1 and HSF3 genes did not have high expression in all genetic groups. HSP70 and HSP90 are highly expressed in Peloco and Caneluda within heat stress, these breeds proved to be very resistant to high temperature. PMID- 29020084 TI - Evaluation of a DNA-based method for spice/herb authentication, so you do not have to worry about what is in your curry, buon appetito! AB - It is long believed that some spices may help protect against certain chronic conditions. Spices are usually parts of plants that have been powdered into small pieces. Have you ever wondered what the curry powder in your dish is made of? The aim of this work was to develop an appropriate DNA-based method for assessment of spice identity. Selecting the best marker for species recognition in the Zingiberaceae family. Six DNA regions were investigated in silico, including ITS, matK, rbcL, rpoC, trnH-psbA and trnL. Then, only four regions (ITS, matK, rbcL and trnH-psbA) were included in the simulated HRM (High-resolution Melting) analysis as the results from previous analysis showed that rpoC and trnL may not be suitable to be used to identify Zingiberaceae species in HRM analysis based on both the percentage of nucleotide variation and GC content. Simulated HRM analysis was performed to test the feasibility of Bar-HRM. We found that ITS2 is the most effective region to be used for identification of the studied species and thus was used in laboratory HRM analysis. All seven tested Zingiberaceae plants were then able to be distinguished using the ITS2 primers in laboratory HRM. Most importantly the melting curves gained from fresh and dried tissue overlapped, which is a crucial outcome for the applicability of the analysis. The method could be used in an authentication test for dried products. In the authentication test, only one of seven store-sold Zingiberaceae products that were tested contained the species listed on their labels, while we found substitution/contamination of the tested purchased products in the rest. PMID- 29020085 TI - Success rates in smoking cessation: Psychological preparation plays a critical role and interacts with other factors such as psychoactive substances. AB - INTRODUCTION: The aim of this study was to identify factors associated with the results of smoking cessation attempts. METHODS: Data were collected in Clermont Ferrand from a smoking cessation clinic between 1999 and 2009 (1,361 patients). Smoking cessation was considered a success when patients were abstinent 6 months after the beginning of cessation. Multivariate logistic regression was used to investigate the association between abstinence and different factors. RESULTS: The significant factors were a history of depression (ORadjusted = 0.57, p = 0.003), state of depression at the initial consultation (ORa = 0.64, p = 0.005), other psychoactive substances (ORa = 0.52, p<0.0001), heart, lung and Ear-Nose Throat diseases (ORa = 0.65, p = 0.005), age (ORa = 1.04, p<0.0001), the Richmond test (p<0.0001; when the patient's motivation went from insufficient to moderate, the frequency of abstinence was twice as high) and the Prochaska algorithm (p<0.0001; when the patient went from the 'pre-contemplation' to the 'contemplation' level, the frequency of success was four times higher). A high score in the Richmond test had a greater impact on success with increasing age (significant interaction: p = 0.01). In exclusive smokers, the contemplation level in the Prochaska algorithm was enough to obtain a satisfactory abstinence rate (65.5%) whereas among consumers of other psychoactive substances, it was necessary to reach the preparation level in the Prochaska algorithm to achieve a success rate greater than 50% (significant interaction: p = 0.02). CONCLUSION: The psychological preparation of the smoker plays a critical role. The management of smoking cessation must be personalized, especially for consumers of other psychoactive substances and/or smokers with a history of depression. PMID- 29020083 TI - Human macrophages differentiated in the presence of vitamin D3 restrict dengue virus infection and innate responses by downregulating mannose receptor expression. AB - BACKGROUND: Severe dengue disease is associated with high viral loads and overproduction of pro-inflammatory cytokines, suggesting impairment in the control of dengue virus (DENV) and the mechanisms that regulate cytokine production. Vitamin D3 has been described as an important modulator of immune responses to several pathogens. Interestingly, increasing evidence has associated vitamin D with decreased DENV infection and early disease recovery, yet the molecular mechanisms whereby vitamin D reduces DENV infection are not well understood. METHODS AND PRINCIPAL FINDINGS: Macrophages represent important cell targets for DENV replication and consequently, they are key drivers of dengue disease. In this study we evaluated the effect of vitamin D3 on the differentiation of monocyte-derived macrophages (MDM) and their susceptibility and cytokine response to DENV. Our data demonstrate that MDM differentiated in the presence of vitamin D3 (D3-MDM) restrict DENV infection and moderate the classical inflammatory cytokine response. Mechanistically, vitamin D3-driven differentiation led to reduced surface expression of C-type lectins including the mannose receptor (MR, CD206) that is known to act as primary receptor for DENV attachment on macrophages and to trigger of immune signaling. Consequently, DENV bound less efficiently to vitamin D3-differentiated macrophages, leading to lower infection. Interestingly, IL-4 enhanced infection was reduced in D3-MDM by restriction of MR expression. Moreover, we detected moderate secretion of TNF alpha, IL-1beta, and IL-10 in D3-MDM, likely due to less MR engagement during DENV infection. CONCLUSIONS/SIGNIFICANCE: Our findings reveal a molecular mechanism by which vitamin D counteracts DENV infection and progression of severe disease, and indicates its potential relevance as a preventive or therapeutic candidate. PMID- 29020087 TI - Residential development alters behavior, movement, and energetics in an apex predator, the puma. AB - Human development strongly influences large carnivore survival and persistence globally. Behavior changes are often the first measureable responses to human disturbances, and can have ramifications on animal populations and ecological communities. We investigated how a large carnivore responds to anthropogenic disturbances by measuring activity, movement behavior, and energetics in pumas along a housing density gradient. We used log-linear analyses to examine how habitat, time of day, and proximity to housing influenced the activity patterns of both male and female pumas in the Santa Cruz Mountains. We used spatial GPS location data in combination with Overall Dynamic Body Acceleration measurements recorded by onboard accelerometers to quantify how development density affected the average distances traveled and energy expended by pumas. Pumas responded to development differently depending on the time of day; at night, they were generally more active and moved further when they were in developed areas, but these relationships were not consistent during the day. Higher nighttime activity in developed areas increased daily caloric expenditure by 10.1% for females and 11.6% for males, resulting in increases of 3.4 and 4.0 deer prey required annually by females and males respectively. Our results support that pumas have higher energetic costs and resource requirements in human-dominated habitats due to human-induced behavioral change. Increased energetic costs for pumas are likely to have ramifications on prey species and exacerbate human-wildlife conflict, especially as exurban growth continues. Future conservation work should consider the consequences of behavioral shifts on animal energetics, individual fitness, and population viability. PMID- 29020086 TI - Violence, insecurity, and the risk of polio: A systematic analysis. AB - BACKGROUND: Since the introduction of polio vaccines in the 1950's and 60's, eradication of poliovirus from the world has been technically feasible. Progress towards this goal, however, has been uneven and influenced by social and political factors that challenge the implementation of robust immunization programs. While violence and insecurity are often cited as barriers to eradication, current global risk models are largely based on virologic and immunologic indicators measured at national levels. In this manuscript, we quantify the relevance of indicators of violence and insecurity on the risk of polio spread. METHODS AND FINDINGS: Using logistic regression models and public data sources, we evaluate the relationship between measures of violence and instability and the location of poliomyelitis cases between 2006 and 2015 at the country-level, both individually and after controlling for more proximal determinants of disease, such as nearby circulating poliovirus and vaccination rates. We found that increases in a country's Fragile States Index (FSI) and Global Peace Index (GPI), aggregate indicators of violence and instability, were associated with the occurrence of poliovirus cases in the subsequent year (p< 0.01), even after controlling for established risk factors. These effects of violence and insecurity must be mediated through immunity and exposure to poliovirus, coarse measures of which are included in our model. This also implies that in our study, and in risk models in general, the interpretation depends on the quality and granularity of available data. CONCLUSION: National virologic and immunologic indicators understate the risk of poliovirus spread in areas with violence and insecurity, and the inclusion of such factors improves precision. In addition, the link between violence and incidence of disease highlights the broader challenge of implementing health interventions in conflict areas. We discuss practical implications of this work in understanding and measuring the risks to polio eradication and other global health initiatives, and the policy implications of the need to reach vulnerable populations in conflict zones. PMID- 29020089 TI - Correction: Soy and fish as features of the Japanese diet and cardiovascular disease risks. AB - [This corrects the article DOI: 10.1371/journal.pone.0176039.]. PMID- 29020088 TI - Expression level of human TLR4 rather than sequence is the key determinant of LPS responsiveness. AB - To address the role of Toll-like receptor 4 (TLR4) single nucleotide polymorphisms (SNP) in lipopolysaccharide (LPS) recognition, we generated mice that differed only in the sequence of TLR4. We used a bacterial artificial chromosome (BAC) transgenic approach and TLR4/MD-2 knockout mice to specifically examine the role of human TLR4 variants in recognition of LPS. Using in vitro and in vivo assays we found that the expression level rather than the sequence of TLR4 played a larger role in recognition of LPS, especially hypoacylated LPS. PMID- 29020090 TI - Saporin-conjugated tetramers identify efficacious anti-HIV CD8+ T-cell specificities. AB - Antigen-specific T-cells are highly variable, spanning potent antiviral efficacy and damaging auto-reactivity. In virus infections, identifying the most efficacious responses is critical to vaccine design. However, current methods depend on indirect measures or on ex vivo expanded CTL clones. We here describe a novel application of cytotoxic saporin-conjugated tetramers to kill antigen specific T-cells without significant off-target effects. The relative efficacy of distinct antiviral CD8+ T-cell specificity can be directly assessed via antigen specific CD8+ T-cell depletion. The utility of these reagents is demonstrated here in identifying the CD8+ T-cell specificity most effective in preventing HIV progression in HIV-infected HLA-B*27-positive immune controllers. PMID- 29020092 TI - Construction of a genetic map using EST-SSR markers and QTL analysis of major agronomic characters in hexaploid sweet potato (Ipomoea batatas (L.) Lam). AB - The Sweet potato, Ipomoea batatas (L.) Lam, is difficult to study in genetics and genomics because it is a hexaploid. The sweet potato study not have been performed domestically or internationally. In this study was performed to construct genetic map and quantitative trait loci (QTL) analysis. A total of 245 EST-SSR markers were developed, and the map was constructed by using 210 of those markers. The total map length was 1508.1 cM, and the mean distance between markers was 7.2 cM. Fifteen characteristics were investigated for QTLs analysis. According to those, the Four QTLs were identified, and The LOD score was 3.0. Further studies need to develop molecular markers in terms of EST-SSR markers for doing to be capable of efficient breeding. The genetic map created here using EST SSR markers will facilitate planned breeding of sweet potato cultivars with various desirable traits. PMID- 29020094 TI - Correction: Expression of MYSM1 is associated with tumor progression in colorectal cancer. AB - [This corrects the article DOI: 10.1371/journal.pone.0177235.]. PMID- 29020093 TI - A shift from motorised travel to active transport: What are the potential health gains for an Australian city? AB - INTRODUCTION: An alarmingly high proportion of the Australian adult population does not meet national physical activity guidelines (57%). This is concerning because physical inactivity is a risk factor for several chronic diseases. In recent years, an increasing emphasis has been placed on the potential for transport and urban planning to contribute to increased physical activity via greater uptake of active transport (walking, cycling and public transport). In this study, we aimed to estimate the potential health gains and savings in health care costs of an Australian city achieving its stated travel targets for the use of active transport. METHODS: Additional active transport time was estimated for the hypothetical scenario of Brisbane (1.1 million population 2013) in Australia achieving specified travel targets. A multi-state life table model was used to estimate the number of health-adjusted life years, life-years, changes in the burden of diseases and injuries, and the health care costs associated with changes in physical activity, fine particle (<2.5 MUm; PM2.5) exposure, and road trauma attributable to a shift from motorised travel to active transport. Sensitivity analyses were conducted to test alternative modelling assumptions. RESULTS: Over the life course of the Brisbane adult population in 2013 (860,000 persons), 33,000 health-adjusted life years could be gained if the travel targets were achieved by 2026. This was mainly due to lower risks of physical inactivity related diseases, with life course reductions in prevalence and mortality risk in the range of 1.5%-6.0%. Prevalence and mortality of respiratory diseases increased slightly (>=0.27%) due to increased exposure of larger numbers of cyclists and pedestrians to fine particles. The burden of road trauma increased by 30% for mortality and 7% for years lived with disability. We calculated substantial net savings ($AU183 million, 2013 values) in health care costs. CONCLUSION: In cities, such as Brisbane, where over 80% of trips are made by private cars, shifts towards walking, cycling and public transport would cause substantial net health benefits and savings in health care costs. However, for such shifts to occur, investments are needed to ensure safe and convenient travel. PMID- 29020091 TI - A novel network analysis approach reveals DNA damage, oxidative stress and calcium/cAMP homeostasis-associated biomarkers in frontotemporal dementia. AB - Frontotemporal Dementia (FTD) is the form of neurodegenerative dementia with the highest prevalence after Alzheimer's disease, equally distributed in men and women. It includes several variants, generally characterized by behavioural instability and language impairments. Although few mendelian genes (MAPT, GRN, and C9orf72) have been associated to the FTD phenotype, in most cases there is only evidence of multiple risk loci with relatively small effect size. To date, there are no comprehensive studies describing FTD at molecular level, highlighting possible genetic interactions and signalling pathways at the origin FTD-associated neurodegeneration. In this study, we designed a broad FTD genetic interaction map of the Italian population, through a novel network-based approach modelled on the concepts of disease-relevance and interaction perturbation, combining Steiner tree search and Structural Equation Model (SEM) analysis. Our results show a strong connection between Calcium/cAMP metabolism, oxidative stress-induced Serine/Threonine kinases activation, and postsynaptic membrane potentiation, suggesting a possible combination of neuronal damage and loss of neuroprotection, leading to cell death. In our model, Calcium/cAMP homeostasis and energetic metabolism impairments are primary causes of loss of neuroprotection and neural cell damage, respectively. Secondly, the altered postsynaptic membrane potentiation, due to the activation of stress-induced Serine/Threonine kinases, leads to neurodegeneration. Our study investigates the molecular underpinnings of these processes, evidencing key genes and gene interactions that may account for a significant fraction of unexplained FTD aetiology. We emphasized the key molecular actors in these processes, proposing them as novel FTD biomarkers that could be crucial for further epidemiological and molecular studies. PMID- 29020095 TI - A multiplex PCR mini-barcode assay to identify processed shark products in the global trade. AB - Protecting sharks from overexploitation has become global priority after widespread population declines have occurred. Tracking catches and trade on a species-specific basis has proven challenging, in part due to difficulties in identifying processed shark products such as fins, meat, and liver oil. This has hindered efforts to implement regulations aimed at promoting sustainable use of commercially important species and protection of imperiled species. Genetic approaches to identify shark products exist but are typically based on sequencing or amplifying large DNA regions and may fail to work on heavily processed products in which DNA is degraded. Here, we describe a novel multiplex PCR mini barcode assay based on two short fragments of the cytochrome oxidase I (COI) gene. This assay can identify to species all sharks currently listed on the Convention of International Trade of Endangered Species (CITES) and most shark species present in the international trade. It achieves species diagnosis based on a single PCR and one to two downstream DNA sequencing reactions. The assay is capable of identifying highly processed shark products including fins, cooked shark fin soup, and skin-care products containing liver oil. This is a straightforward and reliable identification method for data collection and enforcement of regulations implemented for certain species at all governance levels. PMID- 29020096 TI - Correction: Aclacinomycin A Sensitizes K562 Chronic Myeloid Leukemia Cells to Imatinib through p38MAPK-Mediated Erythroid Differentiation. AB - [This corrects the article DOI: 10.1371/journal.pone.0061939.]. PMID- 29020097 TI - Nuclear and mtDNA phylogenetic analyses clarify the evolutionary history of two species of native Hawaiian bats and the taxonomy of Lasiurini (Mammalia: Chiroptera). AB - Previous studies on genetics of hoary bats produced differing conclusions on the timing of their colonization of the Hawaiian Islands and whether or not North American (Aeorestes cinereus) and Hawaiian (A. semotus) hoary bats are distinct species. One study, using mtDNA COI and nuclear Rag2 and CMA1, concluded that hoary bats colonized the Hawaiian Islands no more than 10,000 years ago based on indications of population expansion at that time using Extended Bayesian Skyline Plots. The other study, using 3 mtDNA and 1 Y-chromosome locus, concluded that the Hawaiian Islands were colonized about 1 million years ago. To address the marked inconsistencies between those studies, we examined DNA sequences from 4 mitochondrial and 2 nuclear loci in lasiurine bats to investigate the timing of colonization of the Hawaiian Islands by hoary bats, test the hypothesis that Hawaiian and North American hoary bats belong to different species, and further investigate the generic level taxonomy within the tribe. Phylogenetic analysis and dating of the nodes of mtDNA haplotypes and of nuclear CMA1 alleles show that A. semotus invaded the Hawaiian Islands approximately 1.35 Ma and that multiple arrivals of A. cinereus occurred much more recently. Extended Bayesian Skyline plots show population expansion at about 20,000 years ago in the Hawaiian Islands, which we conclude does not represent the timing of colonization of the Hawaiian Islands given the high degree of genetic differentiation among A. cinereus and A. semotus (4.2% divergence at mtDNA Cytb) and the high degree of genetic diversity within A. semotus. Rather, population expansion 20,000 years ago could have resulted from colonization of additional islands, expansion after a bottleneck, or other factors. New genetic data also support the recognition of A. semotus and A. cinereus as distinct species, a finding consistent with previous morphological and behavioral studies. The phylogenetic analysis of CMA1 alleles shows the presence of 2 clades that are primarily associated with A. semotus mtDNA haplotypes, and are unique to the Hawaiian Islands. There is evidence for low levels of hybridization between A. semotus and A. cinereus on the Hawaiian Islands, but it is not extensive (<15% of individuals are of hybrid origin), and clearly each species is able to maintain its own genetic distinctiveness. Both mtDNA and nuclear DNA sequences show deep divergence between the 3 groups (genera) of lasiurine bats that correspond to the previously recognized morphological differences between them. We show that the Tribe Lasiurini contains the genera Aeorestes (hoary bats), Lasiurus (red bats), and Dasypterus (yellow bats). PMID- 29020099 TI - Experiences of cervical cancer patients in rural Ghana: An exploratory study. AB - Even though cervical cancer is quite a prevalent disease in Ghana, there is hardly any study on this disease. This paper sought to explore the experiences of cervical cancer patients living with the disease with emphasis on their knowledge about the disease before and after the diagnosis. Qualitative data were collected through in-depth interviews with cervical cancer patients undergoing treatment in a specialised cancer treatment health facility in rural Ghana. Cervical cancer patients had inadequate knowledge about the disease, its symptoms, risk factors, treatment and prevention prior to being diagnosed of the disease. These patients were diagnosed late because they usually sought treatment elsewhere before reporting to health facilities. They experienced physical, psychological, economic and social disruptions in their daily lives, which affected their quality of life. It is evident that lack of knowledge about cervical cancer constitutes a threat to its prevention and treatment. Intensive health education through the mass media and community health promotion outreaches can be a sure way of creating adequate knowledge about cervical cancer in Ghana. Treatment and care for cervical cancer patients should incorporate counselling sessions, which should take into consideration the different levels of disruption the women experience and the implications for their wellbeing and management of the condition. PMID- 29020098 TI - Treatment with high-dose antidepressants severely exacerbates the pathological outcome of experimental Escherichia coli infections in poultry. AB - There is an urgent need for novel antibiotics as the current antibiotics are losing their value due to increased resistance among clinically important bacteria. Sertraline, an on-marked anti-depressive drug, has been shown to modify bacterial activity in vitro, including increasing the susceptibility of Escherichia coli to antibiotics. The aim of the present study was to investigate if the antimicrobial activity of sertraline could be documented under clinical settings, hereunder if sertraline could potentiate the effect of tetracycline in treatment of an experimentally induced ascending infection in poultry. A total of 40 chickens were divided in four groups of 10 chickens each. All chickens were challenged with 4x103 colony forming units (CFU) of a tetracycline resistant E. coli strain using a surgical infection model, and subsequently treated with either high-dose sertraline, tetracycline, a combination hereof or received no treatment. Seven days post challenge all birds were submitted to necropsy and scored pathologically for lesions. The average lesion scores were significantly higher (P<0.05) in the groups that were treated with high-dose sertraline or high dose sertraline combined with tetracycline. In conclusion high-dose treatments (four times the maximum therapeutic dose for treating human depression) with sertraline as an adjuvant for treatment of antibiotic resistant E. coli infections exacerbate the pathological outcome of infection in chickens. PMID- 29020100 TI - Biochemical characterization of recombinant influenza A polymerase heterotrimer complex: Polymerase activity and mechanisms of action of nucleotide analogs. AB - Influenza polymerase is a heterotrimer protein with both endonuclease and RNA dependent RNA polymerase (RdRp) activity. It plays a critical role in viral RNA replication and transcription and has been targeted for antiviral drug development. In this study, we characterized the activity of recombinant RdRp purified at 1:1:1 ratio in both ApG-primed RNA replication and mRNA-initiated RNA transcription. The heterotrimer complex showed comparable activity profiles to that of viral particle derived crude replication complex, and in contrast to the crude replication complex, was suitable for detailed mechanistic studies of nucleotide incorporation. The recombinant RdRp was further used to examine distinct modes of inhibition observed with five different nucleotide analog inhibitors, and the apparent steady-state binding affinity Kapp was measured for selected analogs to correlate antiviral activity and enzymatic inhibition with substrate efficiency. PMID- 29020101 TI - Productivity cost due to postpartum ill health: A cross-sectional study in Sri Lanka. AB - OBJECTIVE: Even though postpartum morbidity continues to cause high disease burden in maternal morbidity and mortality across the globe, the literature pertaining to resultant productivity loss is scarce. Hence, the present study aimed at determining the productivity loss and associated cost of episodes of postpartum ill health. METHODS: A cross sectional study was conducted in two Medical Officer of Heath areas in the Anuradhapura district, Sri Lanka in 2011, among 407 women residing in Anuradhapura district with an infant aged between 8 to 24 weeks. Validated interviewer administered questionnaires, including the IMMPACT productivity cost tool, were used to collect data on self-reported episodes of postpartum ill health. The productivity loss was calculated as the sum of days lost due to partial and total incapacitation. The adjusted productivity loss for coping strategies was calculated. Productivity cost, both total and adjusted, were calculated based on the mean daily per capita income of the study sample. RESULTS: Of the 407 participants, 161(39.6%) reported at least one episode of postpartum illness. Hospitalisations were reported by 27 (16.8%) of all symptomatic postpartum women. Common symptoms of postpartum ill health were pain/infection at either episiotomy or surgical site (n = 44, 27.3%), lower abdominal pain (n = 40, 24.8%) and backache (n = 27, 16.8%). The mean productivity loss per episode of ill health was 15 days (SD = 7.8 days) and the mean productivity loss per episode after adjusting for coping strategies was 7.9 days (SD = 4.4 days). The mean productivity cost per an episode was US$ 34.2(95%CI US$ 26.7-41.6) and the mean productivity cost per an episode after adjusting for coping strategies was US$ 18.0 (95%CI US$ 14.1-22.0). CONCLUSIONS: The prevalence of self-reported postpartum ill health, associated productivity loss and cost were high in the study sample and the main contributors were preventable conditions including pain and infection. Thus, effective pain management and proper infection prevention and control measures are important in reducing the burden of postpartum illness and resultant productivity cost. PMID- 29020103 TI - Morphometry of the coronary ostia and the structure of coronary arteries in the shorthair domestic cat. AB - The aim of this study was to measure the area of the coronary ostia, assess their localization in the coronary sinuses and to determine the morphology of the stem of the left and right coronary arteries in the domestic shorthair cat. The study was conducted on 100 hearts of domestic shorthair cats of both sexes, aged 2-18 years, with an average body weight of 4.05 kg. A morphometric analysis of the coronary ostia was carried out on 52 hearts. The remaining 48 hearts were injected with a casting material in order to carry out a morphological assessment of the left and right coronary arteries. In all the studied animals, the surface of the left coronary artery ostium was larger than the surface of the right coronary artery ostium. There were four types of the left main coronary artery: type I (23 animals, 49%)-double-branched left main stem (giving off the left circumflex branch and the interventricular paraconal branch, which in turn gave off the septal branch), type II (12 animals, 26%)-double-branched left main stem (giving off the left circumflex branch and the interventricular paraconal branch without the septal branch), type III (11 animals, 23%)-triple-branched left main stem (giving off the left circumflex branch, interventricular branch and the septal branch, type IV (1 animal, 2%)-double-branched left main stem (giving off the interventricular paraconal branch and the left circumflex branch, which in turn gave off the septal branch). The left coronary artery ostium is greater than the right one. There is considerable diversity in the branches of proximal segment of the left coronary artery, while the right coronary artery is more conservative. These results can be useful in defining the optimal strategies in the endovascular procedures involving the coronary arteries or the aortic valve in the domestic shorthair cat. PMID- 29020102 TI - Dusp3 deletion in mice promotes experimental lung tumour metastasis in a macrophage dependent manner. AB - Vaccinia-H1 Related (VHR) dual-specificity phosphatase, or DUSP3, plays an important role in cell cycle regulation and its expression is altered in several human cancers. In mouse model, DUSP3 deletion prevents neo-angiogenesis and b-FGF induced microvessel outgrowth. Considering the importance of angiogenesis in metastasis formation, our study aimed to investigate the role of DUSP3 in tumour cell dissemination. Using a Lewis Lung carcinoma (LLC) experimental metastasis model, we observed that DUSP3-/- mice developed larger lung metastases than littermate controls. DUSP3-/- bone marrow transfer to lethally irradiated DUSP3+/+ mice was sufficient to transfer the phenotype to DUSP3+/+ mice, indicating that hematopoietic cells compartment was involved in the increased tumour cell dissemination to lung tissues. Interestingly, we found a higher percentage of tumour-promoting Ly6Cint macrophages in DUSP3-/- LLC-bearing lung homogenates that was at least partially due to a better recruitment of these cells. This was confirmed by 1) the presence of higher number of the Ly6Bhi macrophages in DUSP3-/- lung homogenates and by 2) the better migration of DUSP3 /- bone marrow sorted monocytes, peritoneal macrophages and bone marrow derived macrophages (BMDMs), compared to DUSP3+/+ monocytes, macrophages and BMDMs, in response to LLC-conditioned medium. Our study demonstrates that DUSP3 phosphatase plays a key role in metastatic growth through a mechanism involving the recruitment of macrophages towards LLC-bearing lungs. PMID- 29020105 TI - Correction: MPT0B169, a New Antitubulin Agent, Inhibits Bcr-Abl Expression and Induces Mitochondrion-Mediated Apoptosis in Nonresistant and Imatinib-Resistant Chronic Myeloid Leukemia Cells. AB - [This corrects the article DOI: 10.1371/journal.pone.0148093.]. PMID- 29020104 TI - The N-terminal domains of FLASH and Lsm11 form a 2:1 heterotrimer for histone pre mRNA 3'-end processing. AB - Unlike canonical pre-mRNAs, animal replication-dependent histone pre-mRNAs lack introns and are processed at the 3'-end by a mechanism distinct from cleavage and polyadenylation. They have a 3' stem loop and histone downstream element (HDE) that are recognized by stem-loop binding protein (SLBP) and U7 snRNP, respectively. The N-terminal domain (NTD) of Lsm11, a component of U7 snRNP, interacts with FLASH NTD and these two proteins recruit the histone cleavage complex containing the CPSF-73 endonuclease for the cleavage reaction. Here, we determined crystal structures of FLASH NTD and found that it forms a coiled-coil dimer. Using solution light scattering, we characterized the stoichiometry of the FLASH NTD-Lsm11 NTD complex and found that it is a 2:1 heterotrimer, which is supported by observations from analytical ultracentrifugation and crosslinking. PMID- 29020106 TI - Can Tai Chi training impact fractal stride time dynamics, an index of gait health, in older adults? Cross-sectional and randomized trial studies. AB - PURPOSE: To determine if Tai Chi (TC) has an impact on long-range correlations and fractal-like scaling in gait stride time dynamics, previously shown to be associated with aging, neurodegenerative disease, and fall risk. METHODS: Using Detrended Fluctuation Analysis (DFA), this study evaluated the impact of TC mind body exercise training on stride time dynamics assessed during 10 minute bouts of overground walking. A hybrid study design investigated long-term effects of TC via a cross-sectional comparison of 27 TC experts (24.5 +/- 11.8 yrs experience) and 60 age- and gender matched TC-naive older adults (50-70 yrs). Shorter-term effects of TC were assessed by randomly allocating TC-naive participants to either 6 months of TC training or to a waitlist control. The alpha (alpha) long range scaling coefficient derived from DFA and gait speed were evaluated as outcomes. RESULTS: Cross-sectional comparisons using confounder adjusted linear models suggest that TC experts exhibited significantly greater long-range scaling of gait stride time dynamics compared with TC-naive adults. Longitudinal random slopes with shared baseline models accounting for multiple confounders suggest that the effects of shorter-term TC training on gait dynamics were not statistically significant, but trended in the same direction as longer-term effects although effect sizes were very small. In contrast, gait speed was unaffected in both cross-sectional and longitudinal comparisons. CONCLUSION: These preliminary findings suggest that fractal-like measures of gait health may be sufficiently precise to capture the positive effects of exercise in the form of Tai Chi, thus warranting further investigation. These results motivate larger and longer-duration trials, in both healthy and health-challenged populations, to further evaluate the potential of Tai Chi to restore age-related declines in gait dynamics. TRIAL REGISTRATION: The randomized trial component of this study was registered at ClinicalTrials.gov (NCT01340365). PMID- 29020108 TI - Influence of sports flooring and shoes on impact forces and performance during jump tasks. AB - We aim to determine the influence of sports floorings and sports shoes on impact mechanics and performance during standardised jump tasks. Twenty-one male volunteers performed ankle jumps (four consecutive maximal bounds with very dynamic ankle movements) and multi-jumps (two consecutive maximal counter movement jumps) on force plates using minimalist and cushioned shoes under 5 sports flooring (SF) conditions. The shock absorption properties of the SF, defined as the proportion of peak impact force absorbed by the tested flooring when compared with a concrete hard surface, were: SF0 = 0% (no flooring), SF1 = 19%, SF2 = 26%, SF3 = 37% and SF4 = 45%. Shoe and flooring effects were compared using 2x5 repeated-measures ANOVA with post-hoc Bonferroni-corrected comparisons. A significant interaction between SF and shoe conditions was found for VILR only (p = 0.003). In minimalist shoes, SF influenced Vertical Instantaneous Loading Rate (VILR) during ankle jumps (p = 0.006) and multi-jumps (p<0.001), in accordance with shock absorption properties. However, in cushioned shoes, SF influenced VILR during ankle jumps only (p<0.001). Contact Time was the only additional variable affected by SF, but only during multi-jumps in minimalist shoes (p = 0.037). Cushioned shoes induced lower VILR (p<0.001) and lower Contact Time (p<=0.002) during ankle jumps and multi-jumps compared to minimalist shoes. During ankle jumps, cushioned shoes induced greater Peak Vertical Ground Reaction Force (PVGRF, p = 0.002), greater Vertical Average Loading Rate (p<0.001), and lower eccentric (p = 0.008) and concentric (p = 0.004) work. During multi-jumps, PVGRF was lower (p<0.001) and jump height was higher (p<0.001) in cushioned compared to minimalist shoes. In conclusion, cushioning influenced impact forces during standardised jump tasks, whether it was provided by the shoes or the sports flooring. VILR is the variable that was the most affected. PMID- 29020107 TI - Diacetylenic lipids in the design of stable lipopolymers able to complex and protect plasmid DNA. AB - Different viral and non-viral vectors have been designed to allow the delivery of nucleic acids in gene therapy. In general, non-viral vectors have been associated with increased safety for in vivo use; however, issues regarding their efficacy, toxicity and stability continue to drive further research. Thus, the aim of this study was to evaluate the potential use of the polymerizable diacetylenic lipid 1,2-bis(10,12-tricosadiynoyl)-sn-glycero-3-phosphocholine (DC8,9PC) as a strategy to formulate stable cationic lipopolymers in the delivery and protection of plasmid DNA. Cationic lipopolymers were prepared following two different methodologies by using DC8,9PC, 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC), and the cationic lipids (CL) 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP), stearylamine (SA), and myristoylcholine chloride (MCL), in a molar ratio of 1:1:0.2 (DMPC:DC8,9PC:CL). The copolymerization methodology allowed obtaining cationic lipopolymers which were smaller in size than those obtained by the cationic addition methodology although both techniques presented high size stability over a 166-day incubation period at 4 degrees C. Cationic lipopolymers containing DOTAP or MCL were more efficient in complexing DNA than those containing SA. Moreover, lipopolymers containing DOTAP were found to form highly stable complexes with DNA, able to resist serum DNAses degradation. Furthermore, neither of the cationic lipopolymers (with or without DNA) induced red blood cell hemolysis, although metabolic activity determined on the L-929 and Vero cell lines was found to be dependent on the cell line, the formulation and the presence of DNA. The high stability and DNA protection capacity as well as the reduced toxicity determined for the cationic lipopolymer containing DOTAP highlight the potential advantage of using lipopolymers when designing novel non viral carrier systems for use in in vivo gene therapy. Thus, this work represents the first steps toward developing a cationic lipopolymer-based gene delivery system using polymerizable and cationic lipids. PMID- 29020110 TI - Comprehensive benchmarking of SNV callers for highly admixed tumor data. AB - Precision medicine attempts to individualize cancer therapy by matching tumor specific genetic changes with effective targeted therapies. A crucial first step in this process is the reliable identification of cancer-relevant variants, which is considerably complicated by the impurity and heterogeneity of clinical tumor samples. We compared the impact of admixture of non-cancerous cells and low somatic allele frequencies on the sensitivity and precision of 19 state-of-the art SNV callers. We studied both whole exome and targeted gene panel data and up to 13 distinct parameter configurations for each tool. We found vast differences among callers. Based on our comprehensive analyses we recommend joint tumor normal calling with MuTect, EBCall or Strelka for whole exome somatic variant calling, and HaplotypeCaller or FreeBayes for whole exome germline calling. For targeted gene panel data on a single tumor sample, LoFreqStar performed best. We further found that tumor impurity and admixture had a negative impact on precision, and in particular, sensitivity in whole exome experiments. At admixture levels of 60% to 90% sometimes seen in pathological biopsies, sensitivity dropped significantly, even when variants were originally present in the tumor at 100% allele frequency. Sensitivity to low-frequency SNVs improved with targeted panel data, but whole exome data allowed more efficient identification of germline variants. Effective somatic variant calling requires high-quality pathological samples with minimal admixture, a consciously selected sequencing strategy, and the appropriate variant calling tool with settings optimized for the chosen type of data. PMID- 29020111 TI - Riparian vegetation structure and the hunting behavior of adult estuarine crocodiles. AB - Riparian ecosystems are amongst the most biodiverse tropical habitats. They are important, and essential, ecological corridors, linking remnant forest fragments. In this study, we hypothesised that crocodile's actively select nocturnal resting locations based on increased macaque predation potential. We examined the importance of riparian vegetation structure in the maintenance of crocodile hunting behaviours. Using airborne Light Detection and Ranging (LiDAR) and GPS telemetry on animal movement, we identified the repeated use of nocturnal resting sites by adult estuarine crocodiles (Crocodylus porosus) throughout the fragmented Lower Kinabatangan Wildlife Sanctuary in Sabah, Malaysia. Crocodile resting locations were found to resemble, in terms of habitat characteristics, the sleeping sites of long-tailed macaque; positioned in an attempt to avoid predation by terrestrial predators. We found individual crocodiles were actively selecting overhanging vegetation and that the protrusion of trees from the tree line was key to site selection by crocodiles, as well as influencing both the presence and group size of sleeping macaques. Although these findings are correlational, they have broad management implications, with the suggestion that riparian corridor maintenance and quality can have implications beyond that of terrestrial fauna. We further place our findings in the context of the wider ecosystem and the maintenance of trophic interactions, and discuss how future habitat management has the potential to mitigate human-wildlife conflict. PMID- 29020109 TI - Evaluation of repetitive-PCR and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) for rapid strain typing of Bacillus coagulans. AB - In order to establish rapid and accurate typing method for Bacillus coagulans strains which is important for controlling in some canned foods and tea-based beverages manufacturing because of the high-heat resistance of the spores and high tolerance of the vegetative cells to catechins and chemicals, matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and repetitive-PCR (rep-PCR) were evaluated. For this purpose, 28 strains of B. coagulans obtained from various culture collections were tested. DNA sequence analyses of the genes encoding 16S rRNA and DNA gyrase classified the test strains into two and three groups, respectively, regardless of their phenotypes. Both MALDI-TOF MS and rep-PCR methods classified the test strains in great detail. Strains classified in each group showed similar phenotypes, such as carbohydrate utilization determined using API 50CH. In particular, the respective two pairs of strains which showed the same metabolic characteristic were classified into the same group by both MALDI-TOF MS and rep-PCR methods separating from the other strains. On the other hand, the other strains which have the different profiles of carbohydrate utilization were separated into different groups by these methods. These results suggested that the combination of MALDI-TOF MS and rep-PCR analyses was advantageous for the rapid and detailed typing of bacterial strains in respect to both phenotype and genotype. PMID- 29020112 TI - Change of sleep quality from pre- to 3 years post-solid organ transplantation: The Swiss Transplant Cohort Study. AB - BACKGROUND: Poor sleep quality (SQ) is common after solid organ transplantation; however, very little is known about its natural history. We assessed the changes in SQ from pre- to 3 years post-transplant in adult heart, kidney, liver and lung recipients included in the prospective nation-wide Swiss Transplant Cohort Study. We explored associations with selected variables in patients suffering persistent poor SQ compared to those with good or variable SQ. METHODS: Adult single organ transplant recipients enrolled in the Swiss Transplant Cohort Study with pre transplant and at least 3 post-transplant SQ assessment data were included. SQ was self-reported pre-transplant (at listing), then at 6, 12, 24 and 36 months post-transplant. A single SQ item was used to identify poor (0-5) and good sleepers (6-10). Between organ groups, SQ was compared via logistic regression analysis with generalized estimating equations. Within the group reporting persistently poor SQ, we used logistic regression or Kaplan-Meier analysis as appropriate to check for differences in global quality of life and survival. RESULTS: In a sample of 1173 transplant patients (age: 52.1+/-13.2 years; 65% males; 66% kidney, 17% liver, 10% lung, 7% heart) transplanted between 2008 and 2012, pre- transplant poor SQ was highest in liver (50%) and heart (49%) recipients. Overall, poor SQ decreased significantly from pre-transplant (38%) to 24 months post-transplant (26%) and remained stable at 3 years (29%). Patients reporting persistently poor SQ had significantly more depressive symptomatology and lower global quality of life. CONCLUSION: Because self-reported poor SQ is related to poorer global quality of life, these results emphasize the need for further studies to find suitable treatment options for poor SQ in transplant recipients. PMID- 29020113 TI - A systematic review of the effectiveness of self-management interventions in people with multiple sclerosis at improving depression, anxiety and quality of life. AB - BACKGROUND: Self-management interventions have become increasingly popular in the management of long-term health conditions; however, little is known about their impact on psychological well-being in people with Multiple Sclerosis (MS). PURPOSE: To examine the effectiveness of self-management interventions on improving depression, anxiety and health related quality of life in people with MS. METHOD: A structured literature search was conducted for the years 2000 to 2016. The review process followed the PRISMA guidelines, and is registered with PROSPERO (no. CRD42016033925). RESULTS: The review identified 10 RCT trials that fulfilled selection criteria and quality appraisal. Self-management interventions improved health-related quality of life in 6 out of 7 studies, with some evidence of improvement in depression and anxiety symptoms. CONCLUSION: Although the results are promising more robust evaluation is required in order to determine the effectiveness of self-management interventions on depression, anxiety and quality of life in people with MS. Evaluation of the data was impeded by a number of methodological issues including incomplete content and delivery information for the intervention and the exclusion of participants representing the disease spectrum. Recommendations are made for service development and research quality improvement. PMID- 29020114 TI - How annual course of photoperiod shapes seasonal behavior of diploid and triploid oysters, Crassostrea gigas. AB - In this work, we study if ploidy (i.e. number of copies of chromosomes) in the oyster Crassostrea gigas may introduce differences in behavior and in its synchronization by the annual photoperiod. To answer to the question about the effect of the seasonal course of the photoperiod on the behavior of C. gigas according to its ploidy, we quantified valve activity by HFNI valvometry in situ for 1 year in both diploid and triploid oysters. Chronobiological analyses of daily, tidal and lunar rhythms were performed according the annual change of the photoperiod. In parallel, growth and gametogenesis status were measured and spawning events were detected by valvometry. The results showed that triploids had reduced gametogenesis, without spawning events, and approximately three times more growth than diploids. These differences in physiological efforts could explain the result that photoperiod (daylength and/or direction of daylength) differentially drives and modulates seasonal behavior of diploid and triploid oysters. Most differences were observed during long days (spring and summer), where triploids showed longer valve opening duration but lower opening amplitude, stronger daily rhythm and weaker tidal rhythm. During this period, diploids did major gametogenesis and spawning whereas triploids did maximal growth. Differences were also observed in terms of moonlight rhythmicity and neap-spring tidal cycle rhythmicity. We suggest that the seasonal change of photoperiod differentially synchronizes oyster behavior and biological rhythms according to physiological needs based on ploidy. PMID- 29020115 TI - Genetic characteristics and molecular epidemiology of vancomycin-resistant Enterococci isolates from Caribbean countries. AB - Emergence of vancomycin-resistant Enterococci (VRE) that first appeared on the stage about three decades ago is now a major concern worldwide as it has globally reached every continent. Our aim was to simply undertake a multinational study to delineate the resistance and virulence genes of clinical isolates of VRE isolates from the Caribbean. We employed both conventional (standard microbiological methods including use of E-test strips, chromogenic agar) and molecular methods (polymerase chain reactions-PCR, pulsed-field gel electrophoresis-PFGE and multilocus sequence typing-MLST) to analyze and characterize 245 Enterococci species and 77 VRE isolates from twelve hospitals from eight countries in the Caribbean. The PCR confirmed and demonstrated the resistance and virulence genes (vanA and esp) among all confirmed VRE isolates. The PFGE delineated clonally related isolates from patients from the same country and other countries in the region. The main sequence types of the VRE isolates from the region included STs 412, 750, 203, 736 and 18, all from the common ancestor for clonal complex 17 (CC17). Despite this common ancestor and association of outbreaks of this lineage clones, there has been no reports of outbreaks of infection by VRE in several hospitals in the Caribbean. PMID- 29020116 TI - Leptin-adiponectin imbalance as a marker of metabolic syndrome among Chinese children and adolescents: The BCAMS study. AB - PURPOSE: Leptin and adiponectin have opposite effects on subclinical inflammation and insulin resistance, both involved in the development of metabolic syndrome (MS). We aimed to investigate whether leptin/adiponectin ratio (L/A), as a marker of these two adipokines imbalance, may improve diagnosis of MS in children and adolescents, and determined its cut-off value in the diagnosis of MS. METHODS: A total of 3,428 subjects aged 6-18 years were selected from Beijing Child and Adolescent Metabolic Syndrome study. Adipokine leptin and adiponectin were measured using enzyme-linked immunosorbent assay. Odds ratio of MS per 1 z-score of adipokine was examined using logistic regression. Diagnosis accuracy was assessed using c-statistics (AUC) and net reclassification index. RESULTS: The levels of leptin and L/A increased with number of positive MS components, while the levels of adiponectin declined in both boys and girls (all P <0.001). AUCs for diagnosis of MS in girls were 0.793, 0.773, and 0.689 using L/A, leptin and adiponectin, respectively; and AUCs in boys were 0.822, 0.798, and 0.697 for L/A, leptin and adiponectin, respectively. Notably, L/A outperformed individual leptin or adiponectin in discriminating a diagnosis of MS (all P < 0.02 in AUC comparisons). In addition, the optimal cut-offs of L/A by ROC curve differed by genders and pubertal stages, which were 1.63, 1.28, 1.95 and 1.53 ng/ug for total, pre-, mid- and postpubertal boys, respectively and 2.19, 0.87,1.48 and 2.27 ng/ug for total, pre-, mid- and postpubertal girls, respectively, yielding high sensitivity and moderate specificity for a screening test. CONCLUSIONS: In this pediatric population, leptin-adiponectin imbalance, as reflected by an increase in L/A level, was found to be a better diagnostic biomarker for MS than leptin or adiponectin alone. Future longitudinal studies are needed to further validate the gender-specific cutoff values. PMID- 29020117 TI - A putative Vibrio cholerae two-component system controls a conserved periplasmic protein in response to the antimicrobial peptide polymyxin B. AB - The epidemic pathogen Vibrio cholerae senses and responds to different external stresses it encounters in the aquatic environment and in the human host. One stress that V. cholerae encounters in the host is exposure to antimicrobial peptides on mucosal surfaces. We used massively parallel cDNA sequencing (RNA Seq) to quantitatively identify the transcriptome of V. cholerae grown in the presence and absence of sub-lethal concentrations of the antimicrobial peptide polymyxin B. We evaluated the transcriptome of both wild type V. cholerae and a mutant carrying a deletion of vc1639, a putative sensor kinase of an uncharacterized two-component system, under these conditions. In addition to many previously uncharacterized pathways responding with elevated transcript levels to polymyxin B exposure, we confirmed the predicted elevated transcript levels of a previously described LPS modification system in response to polymyxin B exposure. Additionally, we identified the V. cholerae homologue of visP (ygiW) as a regulatory target of VC1639. VisP is a conserved periplasmic protein implicated in lipid A modification in Salmonellae. This study provides the first systematic analysis of the transcriptional response of Vibrio cholerae to polymyxin B, raising important questions for further study regarding mechanisms used by V. cholerae to sense and respond to envelope stress. PMID- 29020118 TI - Susceptibility of different mouse strains to oxaliplatin peripheral neurotoxicity: Phenotypic and genotypic insights. AB - Peripheral neurotoxicity is one of the most distressing side effects of oxaliplatin therapy for cancer. Indeed, most patients that received oxaliplatin experience acute and/or chronic severe sensory peripheral neuropathy. However, despite similar co-morbidities, cancer stage, demographics and treatment schedule, patients develop oxaliplatin-induced peripheral neurotoxicity with remarkably different severity. This suggests individual genetic variability, which might be used to glean the mechanistic insights into oxaliplatin neurotoxicity. We characterized the susceptibility of different mice strains to oxaliplatin neurotoxicity investigating the phenotypic features of neuropathy and gene expression profiles in dorsal root ganglia of six genetically different mice strains (Balb-c, C57BL6, DBA/2J, AJ, FVB and CD1) exposed to the same oxaliplatin schedule. Differential gene expression in dorsal root ganglia from each mice strain were assayed using a genome-wide expression analysis and selected genes were validated by RT-PCR analysis. The demonstration of consistent differences in the phenotypic response to oxaliplatin across different strains is interesting to allow the selection of the appropriate strain based on the pre-defined read-out parameters. Further investigation of the correlation between gene expression changes and oxaliplatin-induced neurotoxicity phenotype in each strain will be useful to deeper investigate the molecular mechanisms of oxaliplatin neurotoxicity. PMID- 29020121 TI - Food Consumption According to the Days of the Week - National Food Survey, 2008 2009. AB - OBJECTIVE: Evaluate the variations in energy, nutrients, and food groups intake between days of the week and weekend days in the Brazilian population. METHODS: We used data from the first National Food Survey (2008-2009) of a one-day food log of a representative sample of the Brazilian population aged 10 years or older (n = 34,003). For the analyses, we considered the sample weights and the effect of the study design. The mean (and standard deviations) and frequencies (%) of energy, nutrients, and food groups consumption were estimated for weekdays (Monday to Friday) and weekend (Saturday and Sunday), we then estimated the differences according to the days of the week for the population strata analyzed. RESULTS: The average daily energy intake for the weekend was 8% higher than the one observed for weekdays. The average percentage contribution of carbohydrate to the daily energy intake was higher during the week compared to Saturday and Sunday (56.3% versus 54.1%, p < 0.01). The inverse was observed for averages of the contribution to the daily intake of energy from total fat (26.8% versus 28.4%), saturated fat (9.1% versus 9.9%) and trans fat (1.4% versus 1.6%). The most significant changes between weekdays and weekend days were observed for eggs, sugar-added beverages, puff snacks and chips, beans, and pasta. During weekends, the frequency of beverage with added sugar consumption increased by 34%, the amount consumed increased by 42%, and the contribution to energy intake increased by 62% when compared to weekdays. CONCLUSIONS: The Brazilian population increases energy intake and unhealthy food markers on weekends compared to weekdays. PMID- 29020122 TI - Informality and employment vulnerability: application in sellers with subsistence work. AB - OBJECTIVE: To describe the origin, evolution, and application of the concept of employment vulnerability in workers who subsist on street sales. METHODS: We have carried out an analysis of the literature in database in Spanish, Portuguese, and English, without restriction by country. This is a review of the gray literature of government reports, articles, and documents from Latin America and the Caribbean. We have analyzed information on the informal economy, social employment vulnerability, and subsistence workers. RESULTS AND CONCLUSIONS: The concept of informal economy is dispersed and suggested as synonymous with employment vulnerability. As a polysemic term, it generates confusion and difficulty in identifying defined profiles of employment vulnerability in informal subsistence workers, who sell their products on the streets and sidewalks of cities. The lack of a clear concept and profile of employment vulnerability for this type of workers generates a restriction on defined actions to reduce employment vulnerability. The profiles could facilitate access to the acquisition of assets that support their structure of opportunities, facilitating and mediating in the passage from vulnerability to social mobility with opportunities. We propose as a concept of employment vulnerability for subsistence workers in the informal sector, the condition of those who must work by day to eat at night, who have little or no ownership of assets, and who have a minimum structure of opportunities to prevent, face, and resist the critical situations that occur daily, putting at risk their subsistence and that of the persons who are their responsibility, thus making the connection between social and employment vulnerability. PMID- 29020120 TI - HPV in women assisted by the Family Health Strategy. AB - OBJECTIVE: Estimate the prevalence of cervical HPV infection among women assisted by the Family Health Strategy and identify the factors related to the infection. METHODS: A cross-sectional study involving 2,076 women aged 20-59 years old residing in Juiz de Fora, State of Minas Gerais, who were asked to participate in an organized screening carried out in units were the Family Health Strategy had been implemented. Participants answered the standardized questionnaire and underwent a conventional cervical cytology test and HPV test for high oncogenic risk. Estimates of HPV infection prevalence were calculated according to selected characteristics referenced in the literature and related to socioeconomic status, reproductive health and lifestyle. RESULTS: The overall prevalence of HPV infection was 12.6% (95%CI 11.16-14.05). The prevalence for the pooled primer contained 12 oncogenic HPV types (31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68) was 8.6% (95%CI 7.3-9.77). In the multivariate analysis, it was observed that the following variables were significantly associated with a higher prevalence of HPV infection: marital status (single: adjusted PR = 1.40, 95%CI 1.07-1.8), alcohol consumption (any lifetime frequency: adjusted PR = 1.44, 95%CI 1.11-1.86) and number of lifetime sexual partners (>= 3: adjusted PR = 1.35, 95%CI 1.04 1.74). CONCLUSIONS: The prevalence of HPV infection in the study population ranges from average to particularly high among young women. The prevalence of HPV16 and HPV18 infection is similar to the worldwide prevalence. Homogeneous distribution among the pooled primer types would precede the isolated infection by HPV18 in magnitude, which may be a difference greater than the one observed. The identification of high-risk oncogenic HPV prevalence may help identify women at higher risk of developing preneoplastic lesions. PMID- 29020119 TI - Human adipose-derived stem cells support the growth of limbal stem/progenitor cells. AB - The most efficient method to expand limbal stem cells (LSCs) in vitro for clinical transplantation is to culture single LSCs directly on growth-arrested mouse fibroblast 3T3 cells. To reduce possible xenobiotic contamination from 3T3s, primary human adipose-derived stem cells (ASCs) were examined as feeder cells to support the expansion of LSCs in vitro. To optimize the ASC-supported culture, freshly isolated limbal epithelial cells in the form of single cells (SC ASC) or cell clusters (CC-ASC) were cultured using three different methods: LSCs seeded directly on feeder cells, a 3-dimensional (3D) culture system and a 3D culture system with fibrin (fibrin 3D). The expanded LSCs were examined at the end of a 2-week culture. The standard 3T3 culture served as control. Expansion of SC-ASC showed limited proliferation and exhibited differentiated morphology. CC ASC generated epithelial cells with undifferentiated morphology in all culture methods, among which CC-ASC in 3D culture supported the highest cell doubling (cells doubled 9.0 times compared to cells doubled 4.9 times in control) while maintained the percentage of putative limbal stem/progenitor cells compared to the control. There were few cell-cell contacts between cultured LSCs and ASCs in 3D CC-ASC. In conclusion, ASCs support the growth of LSCs in the form of cell clusters but not in single cells. 3D CC-ASC could serve as a substitute for the standard 3T3 culture to expand LSCs. PMID- 29020123 TI - Climatic variability and morbidity and mortality associated with particulate matter. AB - OBJECTIVE: The objective of this study has been to analyze whether fine particulate matter (PM2.5), as well as its synergistic effect with maximum temperature, humidity, and seasons, is associated with morbidity and mortality from cardiovascular diseases. METHODS: This is an ecological study of time series. We have used as outcomes the daily death and hospitalization records of adults aged 45 years and over from 2009 to 2011 of the municipalities of Cuiaba and Varzea Grande, State of Mato Grosso, Brazil. We have used Poisson regression using generalized additive models, assuming a significance level of 5%. The model has been controlled for temporal trend, seasonality, average temperature, humidity, and season effects. Daily concentrations of PM2.5 (particulate material with aerodynamic diameter less than 2.5 micrometers) have been obtained by converting the values of optical aerosol thickness. Maximum temperature, humidity, and seasons have been separately included in the model as dummy variables for the analysis of the synergistic effect of PM2.5 with morbidity and mortality from cardiovascular disease. We have calculated the percentage increase of relative risk (%RR) of deaths and hospitalizations for the linear increase of 10 MUg/m3 of PM2.5. RESULTS: Between 2009 and 2011, the increase in PM2.5 was associated with a %RR 2.28 (95%CI 0.53-4.06) for hospitalizations on the same day of exposure and RR% 3.57 (95%CI 0.82-6.38) for deaths with a lag of three days. On hot days, %RR 4.90 (95%CI -0.61-9.38) was observed for deaths. No modification of the effect of PM2.5 was observed for maximum temperature in relation to hospitalizations. On days with low humidity, %RR was 5.35 (95%CI -0.20-11.22) for deaths and 2.71 (95%CI -0.39-5.92) for hospitalizations. In the dry season, %RR was 2.35 (95%CI 0.59-4.15) for hospitalizations and 3.43 (95%CI 0.58-6.35) for deaths. CONCLUSIONS: The PM2.5 is associated with morbidity and mortality from cardiovascular diseases and its effects may be potentiated by heat and low humidity and during the dry season. PMID- 29020125 TI - Construction and validation of educational materials for the prevention of metabolic syndrome in adolescents. AB - OBJECTIVE: To develop and validate an educational technology focused on prevention of metabolic syndrome among adolescents. METHODS: This was methodological research. Using an integrative review, the available publications on the subject were analyzed. Then, this knowledge was used to describe the theoretical content and, with the help of a graphic designer, the art and layout of the pages were developed. In the third phase, the booklet was evaluated and validated by 21 specialists and 39 adolescents. Data collection included three different questionnaires, according to the focus of evaluation of each group of participants, analyzed for reliability (Cronbach's Alpha) and agreement by Infraclass Correlation Coefficient. RESULTS: The mean score attributed by technical content experts was 91.7%, and the content validity index, measured by experts responses, was 0.98, showing high reliability and agreement. In addition, the level of agreement of the positive responses given by adolescents was 88.4%. CONCLUSION: the educational booklet has proved to be a valid and reliable tool to be used for promoting adolescent health. PMID- 29020124 TI - Glucose-6-phosphate dehydrogenase deficiency and the use of primaquine: top-down and bottom-up estimation of professional costs. AB - The aim of this study has been to study whether the top-down method, based on the average value identified in the Brazilian Hospitalization System (SIH/SUS), is a good estimator of the cost of health professionals per patient, using the bottom up method for comparison. The study has been developed from the context of hospital care offered to the patient carrier of glucose-6-phosphate dehydrogenase (G6PD) deficiency with severe adverse effect because of the use of primaquine, in the Brazilian Amazon. The top-down method based on the spending with SIH/SUS professional services, as a proxy for this cost, corresponded to R$60.71, and the bottom-up, based on the salaries of the physician (R$30.43), nurse (R$16.33), and nursing technician (R$5.93), estimated a total cost of R$52.68. The difference was only R$8.03, which shows that the amounts paid by the Hospital Inpatient Authorization (AIH) are estimates close to those obtained by the bottom-up technique for the professionals directly involved in the care. PMID- 29020126 TI - Factors associated with acquisition of carbapenem-resistant Enterobacteriaceae. AB - OBJECTIVE: to identify possible risk factors for acquisition of Enterobacterial strains with a marker for resistance to carbapenems. METHODS: exploratory case control study performed in hospital settings. The study sample consisted of patients with biological specimens that tested positive for carbapenem-resistant Enterobacteriaceae (cases), with the disk diffusion test and Etest, and controls with biological samples testing negative for carbapenem-resistant Enterobacteriaceae. In all, 65 patients were included: 13 (20%) cases and 52 (80%) controls. RESULTS: the microorganisms isolated were Serratia marcescens (6), Klebsiella pneumoniae (4), and Enterobacter cloacae (3). Univariate analysis revealed that length of hospitalization prior to sample collection (p=0.002) and having a surgical procedure (p=0.006) were statistically significant. In the multivariable logistic regression model, both were still significant, with odds ratios of 0.93 (p = 0.009; 95% CI: 0.89 to 0.98) for length of hospitalization prior to sample collection, and 9.28 (p = 0.05; 95% CI: 1.01 to 85.14) for having a surgical procedure. CONCLUSION: shorter hospitalization times and increased surveillance of patients undergoing surgery could play a decisive role in reducing the spread of carbapenem-resistant microorganisms in hospital settings. PMID- 29020127 TI - An exploration of addiction in adults experiencing early-life stress: a metasynthesis. AB - OBJECTIVE: to review and synthesize qualitative research on the links between early-life stress and addiction behaviours in adulthood. METHOD: metasynthesis to review qualitative research findings based on procedures that outline how to identify themes or constructs across studies in a specific area. Comprehensive searches of multiple electronic databases were performed. The initial search yielded 1050 articles and the titles and abstracts were screened for inclusion based on predetermined criteria. Thirty-eight full text, peer-reviewed articles were retrieved and assessed by three independent reviewers. Twelve articles were eligible for full review and appraised using the Critical Appraisal Skills Programme (CASP) tools. RESULTS: the findings revealed that clear associations exist between early-life stress and addictive behaviours in adulthood, such as between trauma in childhood, violence, and addictive behaviours. A common theme in the findings indicates that participants turn to addictive substances as a way of strategically coping with stressful childhood experiences, regardless of the harmful side effects or detrimental social outcomes. CONCLUSION: it can be inferred that addiction may be viewed as a way to deal with adversity in childhood and that there is an interrelationship between addiction, domestic violence and crime. PMID- 29020128 TI - Analysis of Longitudinal Studies With Repeated Outcome Measures: Adjusting for Time-Dependent Confounding Using Conventional Methods. AB - Estimation of causal effects of time-varying exposures using longitudinal data is a common problem in epidemiology. When there are time-varying confounders, which may include past outcomes, affected by prior exposure, standard regression methods can lead to bias. Methods such as inverse probability weighted estimation of marginal structural models have been developed to address this problem. However, in this paper we show how standard regression methods can be used, even in the presence of time-dependent confounding, to estimate the total effect of an exposure on a subsequent outcome by controlling appropriately for prior exposures, outcomes, and time-varying covariates. We refer to the resulting estimation approach as sequential conditional mean models (SCMMs), which can be fitted using generalized estimating equations. We outline this approach and describe how including propensity score adjustment is advantageous. We compare the causal effects being estimated using SCMMs and marginal structural models, and we compare the two approaches using simulations. SCMMs enable more precise inferences, with greater robustness against model misspecification via propensity score adjustment, and easily accommodate continuous exposures and interactions. A new test for direct effects of past exposures on a subsequent outcome is described. PMID- 29020129 TI - Associations Between Maternal Prepregnancy Body Mass Index and Gestational Weight Gain and Daughter's Age at Menarche: The Avon Longitudinal Study of Parents and Children. AB - Earlier puberty and menarche are associated with adverse health outcomes. Reported associations of maternal adiposity with daughter's age at menarche are inconsistent. We examined associations between maternal prepregnancy body mass index (BMI; weight (kg)/height (m)2) and gestational weight gain (GWG) and daughter's ages at menarche (n = 3,935 mother-offspring pairs), pubarche (Tanner stage 2 for pubic hair) (n = 2,942 pairs), and thelarche (Tanner stage 2 for breast development) (n = 2,942 pairs) in the Avon Longitudinal Study of Parents and Children, a prospective United Kingdom pregnancy cohort study (baseline 1991 1992). During a follow-up period of up to 17 years (1991-2008), mean menarcheal age was 12.6 (standard deviation, 1.2) years. Both maternal prepregnancy BMI and GWG were inversely associated with daughter's age at menarche after adjustment for maternal age, parity, socioeconomic status, smoking, maternal menarcheal age, and ethnicity (mean differences were -0.34 months (95% confidence interval: 0.45, -0.22) per BMI unit and -0.17 months (95% confidence interval: -0.26, 0.07) per kg, respectively). Associations remained unchanged after adjustment for birth weight and gestational age but were attenuated to the null when results were adjusted for daughter's prepubertal BMI. Similar results were found for ages at pubarche and thelarche. These findings indicate that greater prepregnancy BMI and GWG are associated with earlier puberty in daughters and that these associations are mediated by daughters' prepubertal BMIs. PMID- 29020130 TI - Partial Mediation by Cadmium Exposure of the Association Between Tobacco Smoking and Atherosclerotic Plaques in the Carotid Artery. AB - Exposure to cadmium confers increased cardiovascular risk. Tobacco smoke contains cadmium, which, hypothetically, may mediate parts of the tobacco-associated risk of developing atherosclerotic plaques. Baseline data from the Swedish Malmo Diet and Cancer cohort (1991-1996) were used to test this hypothesis. Mediation analysis was used to examine associations between smoking and blood cadmium levels and the prevalence of ultrasound-assessed carotid atherosclerotic plaques. The total association with smoking status (never smokers, 2 categories of former smokers, and current smokers) was split into direct and indirect association, and the proportion mediated was estimated. The adjusted estimated plaque prevalence was approximately 27% among never smokers. We identified both a direct and an indirect pathway between smoking and carotid plaques; the indirect association, through cadmium, was observed among current smokers and former smokers who had quit smoking less than 15 years before. For current smokers, the prevalence ratio for plaque was 1.5, with 60%-65% of the association with smoking being mediated through cadmium. Recent former smokers had a prevalence ratio of 1.3, and 40%-45% was mediated through cadmium. Long-time former smokers had a prevalence ratio of 1.2, but none of the association was mediated through cadmium. In conclusion, about two-thirds of the proatherosclerotic association with smoking was mediated by cadmium. PMID- 29020131 TI - Data-Adaptive Estimation for Double-Robust Methods in Population-Based Cancer Epidemiology: Risk Differences for Lung Cancer Mortality by Emergency Presentation. AB - In this paper, we propose a structural framework for population-based cancer epidemiology and evaluate the performance of double-robust estimators for a binary exposure in cancer mortality. We conduct numerical analyses to study the bias and efficiency of these estimators. Furthermore, we compare 2 different model selection strategies based on 1) Akaike's Information Criterion and the Bayesian Information Criterion and 2) machine learning algorithms, and we illustrate double-robust estimators' performance in a real-world setting. In simulations with correctly specified models and near-positivity violations, all but the naive estimators had relatively good performance. However, the augmented inverse-probability-of-treatment weighting estimator showed the largest relative bias. Under dual model misspecification and near-positivity violations, all double-robust estimators were biased. Nevertheless, the targeted maximum likelihood estimator showed the best bias-variance trade-off, more precise estimates, and appropriate 95% confidence interval coverage, supporting the use of the data-adaptive model selection strategies based on machine learning algorithms. We applied these methods to estimate adjusted 1-year mortality risk differences in 183,426 lung cancer patients diagnosed after admittance to an emergency department versus persons with a nonemergency cancer diagnosis in England (2006-2013). The adjusted mortality risk (for patients diagnosed with lung cancer after admittance to an emergency department) was 16% higher in men and 18% higher in women, suggesting the importance of interventions targeting early detection of lung cancer signs and symptoms. PMID- 29020132 TI - The Relationship Between Occupational Standing and Sitting and Incident Heart Disease Over a 12-Year Period in Ontario, Canada. AB - While a growing body of research is examining the impacts of prolonged occupational sitting on cardiovascular and other health risk factors, relatively little work has examined the effects of occupational standing. The objectives of this paper were to examine the relationship between occupations that require predominantly sitting and those that require predominantly standing and incident heart disease. A prospective cohort study combining responses to a population health survey with administrative health-care records, linked at the individual level, was conducted in Ontario, Canada. The sample included 7,320 employed labor market participants (50% male) working 15 hours a week or more and free of heart disease at baseline. Incident heart disease was assessed using administrative records over an approximately 12-year follow-up period (2003-2015). Models adjusted for a wide range of potential confounding factors. Occupations involving predominantly standing were associated with an approximately 2-fold risk of heart disease compared with occupations involving predominantly sitting. This association was robust to adjustment for other health, sociodemographic, and work variables. Cardiovascular risk associated with occupations that involve combinations of sitting, standing, and walking differed for men and women, with these occupations associated with lower cardiovascular risk estimates among men but elevated risk estimates among women. PMID- 29020134 TI - Occurrence of Selected Structural Birth Defects Among Women With Preeclampsia and Other Hypertensive Disorders. AB - To explore a potential association between preeclampsia and selected birth defects, we examined the prevalence of certain birth defects among women with hypertensive disorders including preeclampsia. We analyzed data from 2,499,536 singleton live births in California from 2007 to 2011, including maternal and infant demographics from birth certificates as well as clinical details from delivery hospitalization records. We examined defect groups that were recognizable at birth (e.g., spina bifida and cleft lip). Hypertensive disorders included preexisting hypertension, gestational hypertension, mild preeclampsia, severe preeclampsia/eclampsia, and preeclampsia superimposed on preexisting hypertension. Relative risk values with 95% confidence intervals for each birth defect were calculated by hypertensive group, as well as independent and joint associations of hypertensive and diabetic disorders. Risks of each type of birth defect were higher among offspring of women with hypertensive disorders compared with those without. The risks of birth defects among offspring of women with only a hypertensive disorder were significantly higher than that among women with neither hypertensive nor diabetic disorders (relative risks ranged from 1.37 to 2.77). Risks of birth defects were highest among those born to women with both hypertensive and diabetic disorders compared with those with neither (relative risks ranged from 1.80 to 6.22). These findings support the existence of an association between preeclampsia and certain birth defects and suggest that diabetes may be a contributing factor. PMID- 29020135 TI - Separation in Logistic Regression: Causes, Consequences, and Control. AB - Separation is encountered in regression models with a discrete outcome (such as logistic regression) where the covariates perfectly predict the outcome. It is most frequent under the same conditions that lead to small-sample and sparse-data bias, such as presence of a rare outcome, rare exposures, highly correlated covariates, or covariates with strong effects. In theory, separation will produce infinite estimates for some coefficients. In practice, however, separation may be unnoticed or mishandled because of software limits in recognizing and handling the problem and in notifying the user. We discuss causes of separation in logistic regression and describe how common software packages deal with it. We then describe methods that remove separation, focusing on the same penalized likelihood techniques used to address more general sparse-data problems. These methods improve accuracy, avoid software problems, and allow interpretation as Bayesian analyses with weakly informative priors. We discuss likelihood penalties, including some that can be implemented easily with any software package, and their relative advantages and disadvantages. We provide an illustration of ideas and methods using data from a case-control study of contraceptive practices and urinary tract infection. PMID- 29020136 TI - Traffic-Related Air Pollution and Autism Spectrum Disorder: A Population-Based Nested Case-Control Study in Israel. AB - Accumulating evidence suggests that perinatal air pollutant exposures are associated with increased risk of autism spectrum disorder (ASD), but evidence for traffic pollutants outside the United States is inconclusive. We assessed the association between nitrogen dioxide, a traffic pollution tracer, and risk of ASD. We conducted a nested case-control study among the entire population of children born during 2005-2009 in the central coastal area of Israel. Cases were identified through the National Insurance Institute of Israel (n = 2,098). Controls were a 20% random sample of the remaining children (n = 54,191). Exposure was based on an optimized dispersion model. We estimated adjusted odds ratios and 95% confidence intervals using logistic regression and a distributed lag model. In models mutually adjusted for the 2 periods, the odds ratio per 5.85 parts per billion (ppb) increment of nitrogen dioxide exposure during pregnancy (median, 16.8 ppb; range, 7.5-31.2 ppb) was 0.77 (95% confidence interval: 0.59, 1.00), and the odds ratio for exposure during the 9 months after birth was 1.40 (95% confidence interval: 1.09, 1.80). A distributed-lag model revealed reduced risk around week 13 of pregnancy and elevated risk around week 26 after birth. These findings suggest that postnatal exposure to nitrogen dioxide in Israel is associated with increased odds of ASD, and prenatal exposure with lower odds. The latter may relate to selection effects. PMID- 29020133 TI - Blood Lead, Bone Turnover, and Survival in Amyotrophic Lateral Sclerosis. AB - Blood lead and bone turnover may be associated with the risk of amyotrophic lateral sclerosis (ALS). We aimed to assess whether these factors were also associated with time from ALS diagnosis to death through a survival analysis of 145 ALS patients enrolled during 2007 in the National Registry of Veterans with ALS. Associations of survival time with blood lead and plasma biomarkers of bone resorption (C-terminal telopeptides of type I collagen (CTX)) and bone formation (procollagen type I amino-terminal peptide (PINP)) were estimated using Cox models adjusted for age at diagnosis, diagnostic certainty, diagnostic delay, site of onset, and score on the Revised ALS Functional Rating Scale. Hazard ratios were calculated for each doubling of biomarker concentration. Blood lead, plasma CTX, and plasma PINP were mutually adjusted for one another. Increased lead (hazard ratio (HR) = 1.38; 95% confidence interval (CI): 1.03, 1.84) and CTX (HR = 2.03; 95% CI: 1.42, 2.89) were both associated with shorter survival, whereas higher PINP was associated with longer survival (HR = 0.59; 95% CI: 0.42, 0.83), after ALS diagnosis. No interactions were observed between lead or bone turnover and other prognostic indicators. Lead toxicity and bone metabolism may be involved in ALS pathophysiology. PMID- 29020137 TI - Associations of Residential Socioeconomic, Food, and Built Environments With Glycemic Control in Persons With Diabetes in New York City From 2007-2013. AB - In the present study, we examined the longitudinal associations between residential environmental factors and glycemic control in 182,756 adults with diabetes in New York City from 2007 to 2013. Glycemic control was defined as a hemoglobin A1c (HbA1c) level less than 7%. We constructed residential-level measures and performed principle component analysis to formulate a residential composite score. On the basis of this score, we divided residential areas into quintiles, with the lowest and highest quintiles reflecting the least and most advantaged residential environments, respectively. Several residential-level environmental characteristics, including more advantaged socioeconomic conditions, greater ratio of healthy food outlets to unhealthy food outlets, and residential walkability were associated with increased glycemic control. Individuals who lived continuously in the most advantaged residential areas took less time to achieve glycemic control compared with the individuals who lived continuously in the least advantaged residential areas (9.9 vs. 11.5 months). Moving from less advantaged residential areas to more advantaged residential areas was related to improved diabetes control (decrease in HbA1c = 0.40%, 95% confidence interval: 0.22, 0.55), whereas moving from more advantaged residential areas to less advantaged residential areas was related to worsening diabetes control (increase in HbA1c = 0.33%, 95% confidence interval: 0.24, 0.44). These results show that residential areas with greater resources to support healthy food and residential walkability are associated with improved glycemic control in persons with diabetes. PMID- 29020138 TI - Understanding Causal Distributional and Subgroup Effects With the Instrumental Propensity Score. AB - To address issues with measured and unmeasured confounding in observational studies, we developed a unified approach to using an instrumental variable in more flexible ways to evaluate treatment effects. The approach is based on an instrumental propensity score conditional on baseline variables, which can then be incorporated in matching, regression, subclassification, or weighting along with various parametric, semiparametric, or nonparametric methods for the assessment of treatment effects. Therefore, the application of the instrumental propensity score allows different methods for outcome effect evaluations in addition to standard 2-stage least square models while controlling for unmeasured confounders. Several properties of the instrumental propensity score are discussed. The approach is then illustrated using subclassification along with a semiparametric density ratio model and empirical likelihood. This method allows us to evaluate distributional and subgroup treatment effects in addition to the overall average treatment effect. Simulation studies showed that the method works well. We applied our method to a study of the effects of attending a Catholic school versus a public school and found that attending a Catholic school had significant beneficial effects on subsequent wages among a subgroup of subjects. PMID- 29020139 TI - Coffee Intake and Incidence of Erectile Dysfunction. AB - Coffee intake is suggested to have a positive impact on chronic diseases, yet its role in urological diseases such as erectile dysfunction (ED) remains unclear. We investigated the association of coffee intake with incidence of ED by conducting the Health Professionals Follow-Up Study, a prospective analysis of 21,403 men aged 40-75 years old. Total, regular, and decaffeinated coffee intakes were self reported on food frequency questionnaires. ED was assessed by mean values of questionnaires in 2000, 2004 and 2008. Multivariable adjusted Cox proportional hazards models were used to compute hazard ratios for patients with incident ED (n = 7,298). No significant differences were identified for patients with incident ED after comparing highest (>=4 cups/day) with lowest (0 cups/day) categories of total (hazard ratio (HR) = 1.00, 95% confidence interval (CI): 0.90, 1.11) and regular coffee intakes (HR = 1.00, 95% CI: 0.89, 1.13). When comparing the highest category with lowest category of decaffeinated coffee intake, we found a 37% increased risk of ED (HR = 1.37, 95% CI: 1.08, 1.73), with a significant trend (P trend = 0.02). Stratified analyses also showed an association among current smokers (P trend = 0.005). Overall, long-term coffee intake was not associated with risk of ED in a prospective cohort study. PMID- 29020140 TI - Characteristics of Social Networks and Mortality Risk: Evidence From 2 Prospective Cohort Studies. AB - The size of a person's social network is linked to health and longevity, but it is unclear whether the number of strong social ties or the number of weak social ties is most influential for health. We examined social network characteristics as predictors of mortality in the Finnish Public Sector Study (n = 7,617) and the Health and Social Support Study (n = 20,816). Social network characteristics were surveyed at baseline in 1998. Information about mortality was obtained from the Finnish National Death Registry. During a mean follow-up period of 16 years, participants with a small social network (<=10 members) were more likely to die than those with a large social network (>=21 members) (adjusted hazard ratio (HR) = 1.23, 95% confidence interval (CI): 1.04, 1.46). Mortality risk was increased among participants with both a small number of strong ties (<=2 members) and a small number of weak ties (<=5 members) (HR = 1.55, 95% CI: 1.26, 1.79) and among participants with both a large number of strong ties and a small number of weak ties (HR = 1.28, 95% CI: 1.08, 1.52), but not among those with a small number of strong ties and a large number of weak ties (HR = 1.04, 95% CI: 0.87, 1.25). These findings suggest that in terms of mortality risk, the number of weak ties may be an important component of social networks. PMID- 29020141 TI - Best Practices for Gauging Evidence of Causality in Air Pollution Epidemiology. AB - The contentious political climate surrounding air pollution regulations has brought some researchers and policy-makers to argue that evidence of causality is necessary before implementing more stringent regulations. Recently, investigators in an increasing number of air pollution studies have purported to have used "causal analysis," generating the impression that studies not explicitly labeled as such are merely "associational" and therefore less rigorous. Using 3 prominent air pollution studies as examples, we review good practices for how to critically evaluate the extent to which an air pollution study provides evidence of causality. We argue that evidence of causality should be gauged by a critical evaluation of design decisions such as 1) what actions or exposure levels are being compared, 2) whether an adequate comparison group was constructed, and 3) how closely these design decisions approximate an idealized randomized study. We argue that air pollution studies that are more scientifically rigorous in terms of the decisions made to approximate a randomized experiment are more likely to provide evidence of causality and should be prioritized among the body of evidence for regulatory review accordingly. Our considerations, although presented in the context of air pollution epidemiology, can be broadly applied to other fields of epidemiology. PMID- 29020143 TI - Anti-infective Acquisition Costs for a Stewardship Program: Getting to the Bottom Line. AB - Background: Though antimicrobial stewardship programs (ASPs) are in place for patient safety, financial justification is often required. In 2016, the Infectious Diseases Society of America (IDSA) recommended that anti-infective costs be measured by patient-level administration data normalized for patient census. Few publications use this methodology. Here, we aim to compare 3 methods of drug cost analysis during 3 phases of an ASP as an example of this recommendation's implementation. Methods: At a freestanding pediatric hospital, we retrospectively assessed anti-infective cost using pharmacy purchasing data, patient-level administration data from the electronic medical record (EMR), and patient-level administration data from the Pediatric Hospital Information Systems (PHIS) database, all normalized to patient census. Costs pre-ASP, while planning the ASP, and post-ASP were then compared for each method. Results: Significant differences in costs between the methods were observed. Pharmacy purchasing endorsed minimal financial benefit (decrease planning to post-ASP of $590 dollars per 1000 patient-days), while the EMR and PHIS data endorsed a decrease of $12785 and $21380 per 1000 patient-days, respectively, for a total yearly cost savings of $54656 for pharmacy purchasing data, $1184336 for EMR data, and $2117522 for PHIS data. Conclusions: Pharmacy purchasing data underestimated cost savings compared with EMR and PHIS data, while EMR and PHIS data were comparable in magnitude of savings. At Children's Hospital Colorado, savings justified the full cost of the ASP. EMR patient-level administration data, normalized to patient census, offers a readily available and standardized measure of anti-infective costs over time. PMID- 29020142 TI - Possible Mediation by Methylation in Acute Inflammation Following Personal Exposure to Fine Particulate Air Pollution. AB - Air pollution may increase cardiovascular and respiratory risk through inflammatory pathways, but evidence for acute effects has been weak and indirect. Between December 2014 and July 2015, we enrolled 36 healthy, nonsmoking college students for a panel study in Shanghai, China, a city with highly variable levels of air pollution. We measured personal exposure to particulate matter with an aerodynamic diameter less than or equal to 2.5 MUm (PM2.5) continuously for 72 hours preceding each of 4 clinical visits that included phlebotomy. We measured 4 inflammation proteins and DNA methylation at nearby regulatory cytosine-phosphate guanine (CpG) loci. We applied linear mixed-effect models to examine associations over various lag times. When results suggested mediation, we evaluated methylation as mediator. Increased PM2.5 concentration was positively associated with all 4 inflammation proteins and negatively associated with DNA methylation at regulatory loci for tumor necrosis factor alpha (TNF-alpha) and soluble intercellular adhesion molecule-1. A 10-MUg/m3 increase in average PM2.5 during the 24 hours preceding blood draw corresponded to a 4.4% increase in TNF-alpha and a statistically significant decrease in methylation at one of the two studied candidate CpG loci for TNF-alpha. Epigenetics may play an important role in mediating effects of PM2.5 on inflammatory pathways. PMID- 29020144 TI - Increasing Campylobacter Infections, Outbreaks, and Antimicrobial Resistance in the United States, 2004-2012. AB - Background: Campylobacteriosis, a leading cause of foodborne illness in the United States, was not nationally notifiable until 2015. Data describing national patterns and trends are limited. We describe the epidemiology of Campylobacter infections in the United States during 2004-2012. Methods: We summarized laboratory-confirmed campylobacteriosis data from the Nationally Notifiable Disease Surveillance System, National Outbreak Reporting System, National Antimicrobial Resistance Monitoring System, and Foodborne Diseases Active Surveillance Network. Results: During 2004-2012, 303520 culture-confirmed campylobacteriosis cases were reported. Average annual incidence rate (IR) was 11.4 cases/100000 persons, with substantial variation by state (range, 3.1-47.6 cases/100000 persons). IRs among patients aged 0-4 years were more than double overall IRs. IRs were highest among males in all age groups. IRs in western states and rural counties were higher (16.2/100000 and 14.2/100000, respectively) than southern states and metropolitan counties (6.8/100000 and 11.0/100000, respectively). Annual IRs increased 21% from 10.5/100000 during 2004-2006 to 12.7/100000 during 2010-2012, with the greatest increases among persons aged >60 years (40%) and in southern states (32%). The annual median number of Campylobacter outbreaks increased from 28 in 2004-2006 to 56 in 2010-2012; in total, 347 were reported. Antimicrobial susceptibility testing of isolates from 4793 domestic and 1070 travel-associated infections revealed that, comparing 2004 2009 to 2010-2012, ciprofloxacin resistance increased among domestic infections (12.8% vs 16.1%). Conclusions: During 2004-2012, incidence of campylobacteriosis, outbreaks, and clinically significant antimicrobial resistance increased. Marked demographic and geographic differences exist. Our findings underscore the importance of national surveillance and understanding of risk factors to guide and target control measures. PMID- 29020145 TI - Interferon-gamma-Inducible Protein 10 (IP-10) as a Screening Tool to Optimize Human Immunodeficiency Virus RNA Monitoring in Resource-Limited Settings. AB - Background: Achieving effective antiretroviral treatment (ART) monitoring is a key determinant to ensure viral suppression and reach the UNAIDS 90-90-90 targets. The gold standard for detecting virological failure is plasma human immunodeficiency virus (HIV) RNA (viral load [VL]) testing; however, its availability is very limited in low-income countries due to cost and operational constraints. Methods: HIV-1-infected adults on first-line ART attending routine visits at the Manhica District Hospital, Mozambique, were previously evaluated for virologic failure. Plasma levels of interferon-gamma-inducible protein 10 (IP 10) were quantified by enzyme-linked immunosorbent assay. Logistic regression was used to build an IP-10-based model able to identify individuals with VL >150 copies/mL. From the 316 individuals analyzed, 253 (80%) were used for model training and 63 (20%) for validation. Receiver operating characteristic curves were employed to evaluate model prediction. Results: From the individuals included in the training set, 34% had detectable VL. Mean age was 41 years, 70% were females, and median time on ART was 3.4 years. IP-10 levels were significantly higher in subjects with detectable VL (108.2 pg/mL) as compared to those with undetectable VL (38.0 pg/mL) (P < .0001, U test). IP-10 univariate model demonstrated high classification performance (area under the curve = 0.85 [95% confidence interval {CI}, .80-.90]). Using a cutoff value of IP-10 >=44.2 pg/mL, the model identified detectable VL with 91.9% sensitivity (95% CI, 83.9% 96.7%) and 59.9% specificity (95% CI, 52.0%-67.4%), values confirmed in the validation set. Conclusions: IP-10 is an accurate biomarker to screen individuals on ART for detectable viremia. Further studies should evaluate the benefits of IP 10 as a triage approach to monitor ART in resource-limited settings. PMID- 29020146 TI - Trends in Pricing and Generic Competition Within the Oral Antibiotic Drug Market in the United States. AB - Background: In recent years, the price of many older generic drugs, including numerous antibiotics, has increased substantially. We sought to analyze recent price changes and extent of generic competition within a cohort of commonly prescribed off-patent oral antibiotics. Methods: We extracted oral antibiotics recommended for common outpatient conditions in the Infectious Diseases Society of America Practice Guidelines. We determined all US Food and Drug Administration approved manufacturers for each formulation and strength in 2013 and 2016 and the yearly national average drug acquisition cost (NADAC) price between 2013 and 2016. Wilcoxon signed rank test was used to compare changes in drug prices and number of manufacturers from 2013 to 2016. Spearman correlation coefficient was used to assess the association between drug prices and number of manufacturers. Results: Twenty-two antibiotics (81 formulations and strengths) were analyzed. There was no change in the median NADAC price or the number of manufacturers between 2013 and 2016. However, 11 (14%) formulations increased in price by 90% or more, and 13 (16%) had 2 or fewer manufacturers during all 4 years. Antibiotic prices were negatively associated with the number of available manufacturers. Conclusions: While prices and the number of manufacturers for common oral antibiotics were overall stable between 2013 and 2016, reduced manufacturer competition was associated with increased prices. A subset of antibiotics exhibited substantial price increases, and most, but not all, had limited manufacturer competition. Policy solutions are needed to ensure availability of low-cost, essential generic antibiotics. PMID- 29020147 TI - Congenital Cytomegalovirus Infection: Improved Understanding of Maternal Immune Responses That Reduce the Risk of Transplacental Transmission. PMID- 29020149 TI - A Coordinated and Sustained Response to the Threat of Antibiotic Resistance Is Critical: Lessons Learned From Israel. PMID- 29020148 TI - Childhood Residential and Agricultural Pesticide Exposures in Relation to Adult Onset Rheumatoid Arthritis in Women. AB - Farming and pesticide exposure may influence risk of rheumatoid arthritis (RA); the role of early-life pesticide exposure is unknown. The Sister Study includes a US national cohort of women aged 35-74 years (enrolled 2004-2009); we examined childhood pesticide exposure in women in this cohort with adult-onset RA. Cases (n = 424) were compared with 48,919 noncases. Data included pesticide use at the longest childhood residence through age 14 years, farm residence of at least 12 months with agricultural pesticide exposure through age 18 years, and maternal farm experience. Odds ratios and 95% confidence intervals were adjusted for age, race or ethnicity, education, smoking, and childhood socioeconomic factors. Cases with RA reported more frequent and direct (personal) residential pesticide use in childhood (for infrequent/indirect pesticide use, odds ratio (OR) = 1.1; for frequent/direct use, OR = 1.8; P for trend = 0.013). Compared with women without residential farm history, odds of having RA increased for those reporting a childhood-only farm residence with personal exposure to pesticides used on crops (OR = 1.8, 95% confidence interval: 1.1, 2.9) or livestock (OR = 2.0, 95% confidence interval: 1.2, 3.3). Our findings suggest adult-onset RA may be related to childhood exposure to residential and agricultural pesticides, and support further investigations of lifetime pesticide use in RA. PMID- 29020151 TI - Viruses Associated With Unexplained Acute Liver Failure: Next Generation Reveals the Last Generation. PMID- 29020150 TI - A Multicenter Study Evaluating Ceftriaxone and Benzathine Penicillin G as Treatment Agents for Early Syphilis in Jiangsu, China. AB - Background: The aim of this study was to assess the efficacy of ceftriaxone and benzathine penicillin G (BPG) in nonpregnant, immunocompetent adults with early syphilis because there is a lack of clinical evidence supporting ceftriaxone as an alternative treatment for early syphilis without an human immunodeficiency virus coinfection. Methods: A randomized, open-label controlled study evaluating the efficacy of ceftriaxone and BPG was conducted in 4 hospitals in Jiangsu Province. Treatment comprised either ceftriaxone (1.0 g, given intravenously, once daily for 10 days) or BPG (2.4 million units, given intramuscularly, once weekly for 2 weeks). A serological response was defined as a >=4-fold decline in the rapid plasma reagin (RPR) titer. Results: In all, 301 patients with early syphilis were enrolled in this study; 230 subjects completed the follow-ups. The serological response at 6 months of follow up was observed in 90.2% in ceftriaxone group and 78.0% in BPG group (P = .01). There was no significant difference between treatment groups in patients with primary or early latent syphilis, but among patients with secondary syphilis the difference was highly significant (95.8% vs 76.2%; P < .01). Moreover, patients exhibiting a Jarisch Herxheimer reaction after treatment might have a shorter period before a serological response (P = .03). Conclusions: In this study, ceftriaxone regimen was noninferior to the BPG regimen in nonpregnant, immunocompetent patients with early syphilis. Clinical Trials Registration: ChiCTR-TQR-13003624. PMID- 29020152 TI - Increases in Ocular Syphilis-North Carolina, 2014-2015. AB - Background: Ocular syphilis is an inflammatory eye disease due to Treponema pallidum infection. In the United States, syphilis rates have increased since 2000; clusters of ocular syphilis were reported in 2015. We investigated ocular syphilis in North Carolina to describe the epidemiology and clinical course of disease. Methods: We reviewed syphilis cases reported to North Carolina during 2014-2015 and abstracted information from health department interviews for cases with ocular symptoms and no other defined etiology. To assess duration and severity of ocular symptoms, we also reviewed medical records and conducted structured interviews. We compared the prevalence of ocular manifestations among reported syphilis cases by demographic and clinical characteristics. Results: Among 4232 syphilis patients, 63 (1.5%) had ocular syphilis: 21 in 2014 and 42 in 2015, a 100% increase. Total syphilis cases increased 35% through 2015. No patient with ocular syphilis named another ocular syphilis patient as a sex partner. Patients presented in all syphilis stages; 24 (38%) were diagnosed in primary or secondary syphilis. Ocular manifestations were more prevalent among syphilis patients who were male, aged >=40 years, white, and infected with human immunodeficiency virus. No risk behaviors were associated with ocular syphilis. Among 39 interviewed patients, 34 (87%) reported reduced vision during infection; 12 (31%) reported residual visual symptoms posttreatment. Conclusions: In North Carolina, ocular syphilis increased from 2014 to 2015 and may be due to increased recognition of ocular manifestations, or a true increase in ocular syphilis. Many ocular syphilis patients experienced vision loss; however, most improved posttreatment. PMID- 29020154 TI - Hospital Sinks Are a Potential Nosocomial Source of Candida Infections. PMID- 29020153 TI - Universal Screening With Use of Immunoglobulin G Avidity for Congenital Cytomegalovirus Infection. AB - Background: The aim of this prospective cohort study was to evaluate the efficacy of maternal screening for congenital cytomegalovirus infection (CCI) using cytomegalovirus (CMV) immunoglobulin G (IgG) and the IgG avidity index (AI). Methods: Pregnant women underwent screening of CMV IgG and AI measurements. IgG negative women underwent remeasurement of IgG after educational intervention. Women with an AI <=45% received further examinations, including measurement of CMV IgM. All newborns received polymerase chain reaction analyses of the urine, and CCI was diagnosed by the detection of CMV-DNA in the urine. Primary infection was defined as an AI <35% and/or positive IgM (>1.20 index). Serum samples from women with an AI >45% were stored, and the IgM levels were measured after delivery. The efficacy of AI and IgM for CCI screening was compared. Results: A total of 1562 (71.2%) women tested positive for IgG. In this study, 10 newborns with CCI were detected. The presence of infection in 3 newborns from mothers with primary infection was predicted by screening of IgG and AI <35%. However, infection in 7 newborns from women with nonprimary infection could not be predicted by screening of CMV IgG, AI <35%, or IgM. The application of an AI <35% for CCI screening yielded 22.2% sensitivity, 95.0% specificity, 2.5% positive predictive value, and 99.5% negative predictive value and was similar to that of IgM (11.1% sensitivity, 93.2% specificity, 0.9% positive predictive value, and 92.7% negative predictive value). Conclusions: Maternal screening using CMV IgG and AI can identify pregnancies with CCI from primary infection, but overlooks a number of those from nonprimary infection. PMID- 29020156 TI - IDSA/AASLD Response to Cochrane Review on Direct-Acting Antivirals for Hepatitis C. PMID- 29020157 TI - Early Antibiotic Use After Fecal Microbiota Transplantation Increases Risk of Treatment Failure. AB - Antibiotic use within the first 8 weeks after fecal microbiota transplantation (FMT) may disrupt microbial engraftment and limit FMT effectiveness. We aimed to assess the burden of antibiotic use within 8 weeks of FMT and its impact on FMT efficacy. PMID- 29020158 TI - Modeling Risk-Factor Trajectories When Measurement Tools Change Sequentially During Follow-up in Cohort Studies: Application to Dietary Habits in Prodromal Dementia. AB - Modeling risk-factor trajectories is critical to understanding the natural history of diseases, yet the measurement tools used to assess risk factors often evolve during follow-up in cohorts, and such change prevents longitudinal analyses using standard models. We addressed this issue with a latent process model. Trajectories of average intakes of 5 food families (fish, meat, fruits, vegetables, and carbohydrate-rich foods) were described in prodromal dementia during the 10 years prior to diagnosis of cases and compared with those of controls, using a case-control sample nested within the Three-City Study, Bordeaux, France (1999-2012). Food intakes were measured by 2 or 3 different subquestionnaires across 5 repeated food frequency questionnaires. The sample comprised 205 incident cases and 410 controls matched for age, sex, education, and number of repeated food frequency questionnaires. Intakes of fish, fruits, and vegetables decreased at the approach of diagnosis among cases, suggesting reverse causation. This study demonstrated that the latent process model approach constitutes a powerful framework for modeling risk-factor trajectories, even when measurement tools change sequentially over time. Coupled with a case-control approach to contrast trajectories in prodromal disease versus healthy status, it can help us to understand the dynamic, causal relationships between risk factors and diseases. PMID- 29020155 TI - Measurement of Vitamin D for Epidemiologic and Clinical Research: Shining Light on a Complex Decision. AB - Vitamin D is a fat-soluble vitamin that is synthesized in the skin with exposure to sunlight or is ingested from dietary supplements or food. There has been a dramatic increase in research on vitamin D, linking it with health outcomes as varied as reproductive function, infection, cardiovascular disease, and cancer. The study of vitamin D has generated much excitement, partly because there is an ideal intervention: Low levels may be common and can be remedied with widely available supplements. Determination of vitamin D status is complex and has advanced dramatically in the past 5 years. In this paper, we begin by describing important considerations for measurement of total 25-hydroxyvitamin D (25(OH)D), the biomarker traditionally assessed in epidemiologic studies. While 25(OH)D remains the most commonly measured biomarker, emerging evidence suggests that other related analytes may contribute to the characterization of an individual's vitamin D status (e.g., vitamin D-binding protein, bioavailable and free 25(OH)D, the C-3 epimer of 25(OH)D, 1,25-dihydroxyvitamin D, and 24,25-dihydroxyvitamin D). The measurement of these analytes is also complex, and there are important considerations for deciding whether their measurement is warranted in new research studies. Herein we discuss these issues and provide the reader with an up-to-date synthesis of research on vitamin D measurement options and considerations. PMID- 29020160 TI - Immune Cross-Opsonization Within emm Clusters Following Group A Streptococcus Skin Infection: Broadening the Scope of Type-Specific Immunity. AB - Background: Group A Streptococcus (GAS) skin infections are particularly prevalent in developing nations. The GAS M protein, by which strains are differentiated into >220 different emm types, is immunogenic and elicits protective antibodies. A major obstacle for vaccine development has been the traditional understanding that immunity following infection is restricted to a single emm type. However, recent evidence has led to the hypothesis of immune cross-reactivity between emm types. Methods: We investigated the human serological response to GAS impetigo in Fijian schoolchildren, focusing on 3 major emm clusters (E4, E6, and D4). Pre- and postinfection sera were assayed by enzyme-linked immunosorbent assay with N-terminal M peptides and bactericidal assays using the infecting-type strain, emm cluster-related strains, and nonrelated strains. Results: Twenty of the 53 paired sera demonstrated a >=4-fold increase in antibody titer against the infecting type. When tested against all cluster-related M peptides, we found that 9 of 17 (53%) paired sera had a >=4 fold increase in antibody titer to cluster-related strains as well. When grouped by cluster, the mean change to cluster-related emm types in E4 and E6 was >4-fold (5.9-fold and 19.5-fold, respectively) but for D4 was 3.8-fold. The 17 paired sera were tested in bactericidal assays against selected cluster-related and nonrelated strains. While the responses were highly variable, numerous instances of cross-reactive killing were observed. Conclusions: These data demonstrate that M type-specific and cross-reactive immune responses occur following skin infection. The cross-reactive immune responses frequently align with emm clusters, raising new opportunities to design multivalent vaccines with broad coverage. PMID- 29020159 TI - Distinguishing Secondary Dengue Virus Infection From Zika Virus Infection With Previous Dengue by a Combination of 3 Simple Serological Tests. AB - Background: The explosive spread of Zika virus (ZIKV) and associated microcephaly present an urgent need for sensitive and specific serodiagnostic tests, particularly for pregnant women in dengue virus (DENV)-endemic regions. Recent reports of enhanced ZIKV replication by dengue-immune sera have raised concerns about the role of previous DENV infection on the risk and severity of microcephaly and other ZIKV complications. Methods: Enzyme-linked immunosorbent assays (ELISAs) based on ZIKV and DENV nonstructural protein 1 (NS1) were established to test acute, convalescent phase, and post-convalescent phase serum/plasma samples from reverse-transcription polymerase chain reaction confirmed cases including 20 primary ZIKV, 25 ZIKV with previous DENV, 58 secondary DENV, and 16 primary DENV1 infections. Results: ZIKV-NS1 immunoglobulin M (IgM) and immunoglobulin G (IgG) ELISAs combined can detect ZIKV infection with a sensitivity of 95% and specificity of 66.7%. The ZIKV-NS1 IgG cross-reactivity by samples from secondary DENV infection cases ranged from 66.7% to 28.1% (within 1 month to 1-2 years post-illness, respectively). Addition of DENV1-NS1 IgG ELISA can distinguish primary ZIKV infection; the ratio of absorbance of ZIKV-NS1 to DENV1-NS1 IgG ELISA can distinguish ZIKV with previous DENV and secondary DENV infections with a sensitivity of 87.5% and specificity of 81.3%. These findings were supported by analysis of sequential samples. Conclusions: An algorithm for ZIKV serodiagnosis based on 3 simple ELISAs is proposed to distinguish primary ZIKV, ZIKV with previous DENV, and secondary DENV infections; this could be applied to serodiagnosis for ZIKV, serosurveillance, and monitoring ZIKV infection during pregnancy to understand the epidemiology, pathogenesis, and complications of ZIKV in dengue-endemic regions. PMID- 29020161 TI - Comparison of Efficacy of Antimicrobial Agents Among Hospitalized Patients With Mycoplasma pneumoniae Pneumonia in Japan During Large Epidemics of Macrolide Resistant M. pneumoniae Infections: A Nationwide Observational Study. AB - Background: Mycoplasma pneumoniae strains with resistance to macrolides have been spreading worldwide. Here, we aimed to clarify which antimicrobial agent is a better treatment for patients with M. pneumoniae pneumonia in a setting with large epidemics of macrolide resistance. Methods: Adult patients hospitalized with laboratory-confirmed M. pneumoniae pneumonia from 2010 to 2013 were identified from the Japanese Diagnosis Procedure Combination national database. Drug switching, length of stay (LOS), 30-day mortality, and total costs for patients who underwent macrolide, quinolone, and tetracycline therapy were compared using propensity score analyses. Results: Eligible patients (N = 1650) from 602 hospitals were divided into the macrolide group (n = 508), quinolone group (n = 569), or tetracycline group (n = 573). We found that 52.8%, 21.8%, and 38.6% of patients in the macrolide, quinolone, and tetracycline groups, respectively, had to switch drugs (P < .0001). There was no significant difference in the LOS and the 30-day mortality rates among these 3 groups. Cost was highest in the quinolone group (P = .0062). The propensity score-matched pairs (n = 487*2) generated from the quinolone and tetracycline groups also showed a lower proportion of patients who require switches in the quinolone group than in the tetracycline group (21.2% vs 39.6%, P < .0001) but not in the LOS, mortality, and cost. Conclusions: There were no significant differences in the LOS and mortality among any antimycoplasmal drugs as initial treatment for hospitalized M. pneumoniae pneumonia patients despite the lower switching rate in the quinolone group. PMID- 29020162 TI - Successful Therapy of a Multidrug-Resistant Extended-Spectrum beta-Lactamase Producing and Fluoroquinolone-Resistant Salmonella enterica Subspecies enterica Serovar Typhi Infection Using Combination Therapy of Meropenem and Fosfomycin. AB - We report a traveler who acquired a Salmonella enterica subspecies enterica serovar Typhi strain with resistance against beta-lactams, cephalosporins (extended-spectrum beta-lactamase-producing type SHV-12), and quinolones (plasmid mediated quinolone resistance gene qnrB7). After clinical deterioration using meropenem monotherapy, treatment success was achieved after commencement of fosfomycin in conjunction with high-dose meropenem. The case illustrates clinical challenges of multidrug-resistant S. Typhi. PMID- 29020163 TI - Influenza A(H5N1) Virus Infection in a Child With Encephalitis Complicated by Obstructive Hydrocephalus. AB - A 2-year-old boy with highly pathogenic avian influenza A(H5N1) virus infection with minimal respiratory symptoms developed encephalitis complicated by obstructive hydrocephalus. Viral RNA was detectable in cerebrospinal fluid. The virus belonged to H5N1 clade 2.3.2.1b and had acquired the mammalian adaptation mutation PB2 Q591K. PMID- 29020165 TI - Reply to Dilworth et al. PMID- 29020164 TI - Adults Hospitalized With Pneumonia in the United States: Incidence, Epidemiology, and Mortality. AB - Background: Understanding the burden of community-acquired pneumonia (CAP) is critical to allocate resources for prevention, management, and research. The objectives of this study were to define incidence, epidemiology, and mortality of adult patients hospitalized with CAP in the city of Louisville, and to estimate burden of CAP in the US adult population. Methods: This was a prospective population-based cohort study of adult residents in Louisville, Kentucky, from 1 June 2014 to 31 May 2016. Consecutive hospitalized patients with CAP were enrolled at all adult hospitals in Louisville. The annual population-based CAP incidence was calculated. Geospatial epidemiology was used to define ecological associations among CAP and income level, race, and age. Mortality was evaluated during hospitalization and at 30 days, 6 months, and 1 year after hospitalization. Results: During the 2-year study, from a Louisville population of 587499 adults, 186384 hospitalizations occurred. A total of 7449 unique patients hospitalized with CAP were documented. The annual age-adjusted incidence was 649 patients hospitalized with CAP per 100000 adults (95% confidence interval, 628.2-669.8), corresponding to 1591825 annual adult CAP hospitalizations in the United States. Clusters of CAP cases were found in areas with low-income and black/African American populations. Mortality during hospitalization was 6.5%, corresponding to 102821 annual deaths in the United States. Mortality at 30 days, 6 months, and 1 year was 13.0%, 23.4%, and 30.6%, respectively. Conclusions: The estimated US burden of CAP is substantial, with >1.5 million unique adults being hospitalized annually, 100000 deaths occurring during hospitalization, and approximately 1 of 3 patients hospitalized with CAP dying within 1 year. PMID- 29020167 TI - Adjusting Expected Mortality Rates Using Information From a Control Population: An Example Using Socioeconomic Status. AB - Expected or reference mortality rates are commonly used in the calculation of measures such as relative survival in population-based cancer survival studies and standardized mortality ratios. These expected rates are usually presented according to age, sex, and calendar year. In certain situations, stratification of expected rates by other factors is required to avoid potential bias if interest lies in quantifying measures according to such factors as, for example, socioeconomic status. If data are not available on a population level, information from a control population could be used to adjust expected rates. We have presented two approaches for adjusting expected mortality rates using information from a control population: a Poisson generalized linear model and a flexible parametric survival model. We used a control group from BCBaSe-a register-based, matched breast cancer cohort in Sweden with diagnoses between 1992 and 2012-to illustrate the two methods using socioeconomic status as a risk factor of interest. Results showed that Poisson and flexible parametric survival approaches estimate similar adjusted mortality rates according to socioeconomic status. Additional uncertainty involved in the methods to estimate stratified, expected mortality rates described in this study can be accounted for using a parametric bootstrap, but this might make little difference if using a large control population. PMID- 29020166 TI - Long-Term Impact of an Educational Antimicrobial Stewardship Program on Hospital Acquired Candidemia and Multidrug-Resistant Bloodstream Infections: A Quasi Experimental Study of Interrupted Time-Series Analysis. AB - Background: The global crisis of bacterial resistance urges the scientific community to implement intervention programs in healthcare facilities to promote an appropriate use of antibiotics. However, the clinical benefits or the impact on resistance of these interventions has not been definitively proved. Methods: We designed a quasi-experimental intervention study with an interrupted time series analysis. A multidisciplinary team conducted a multifaceted educational intervention in our tertiary-care hospital over a 5-year period. The main activity of the program consisted of peer-to-peer educational interviews between counselors and prescribers from all departments to reinforce the principles of the proper use of antibiotics. We assessed antibiotic consumption, incidence density of Candida and multidrug-resistant (MDR) bacteria bloodstream infections (BSIs) and their crude death rate per 1000 occupied bed days (OBDs). Results: A quick and intense reduction in antibiotic consumption occurred 6 months after the implementation of the intervention (change in level, -216.8 defined daily doses per 1000 OBDs; 95% confidence interval, -347.5 to -86.1), and was sustained during subsequent years (average reduction, -19,9%). In addition, the increasing trend observed in the preintervention period for the incidence density of candidemia and MDR BSI (+0.018 cases per 1000 OBDs per quarter; 95% confidence interval, -.003 to .039) reverted toward a decreasing trend of -0.130 per quarter (change in slope, -0.029; -.051 to -.008), and so did the mortality rate (change in slope, -0.015; -.021 to -.008). Conclusions: This education-based antimicrobial stewardship program was effective in decreasing the incidence and mortality rate of hospital-acquired candidemia and MDR BSI through sustained reduction in antibiotic use. PMID- 29020170 TI - Breast Cancer Incidence and Exposure to Metalworking Fluid in a Cohort of Female Autoworkers. AB - Breast cancer is the leading cancer diagnosed among women, and environmental studies have produced few leads on modifiable risk factors for breast cancer. Following an Institute of Medicine recommendation for occupational studies of women highly exposed to potential breast cancer risk factors, we took advantage of an existing cohort of 4,503 female autoworkers in Michigan exposed to metalworking fluid (MWF), complex mixtures of oils and chemicals widely used in metal manufacturing worldwide. Cox proportional hazards models were fit to estimate hazard ratios for incident breast cancer (follow-up, 1985-2013) and cumulative exposure (20-year lag) to straight mineral oils (a known human carcinogen) and water-based soluble and synthetic MWF. Because the state cancer registry began decades after the cohort was defined, we restricted our analyses to subcohorts of women hired closer to the start of follow-up. Among those hired after 1969, the hazard ratio associated with a 1 interquartile-range increase in straight MWF exposure was 1.13 (95% confidence interval: 1.03, 1.23). In separate analyses of premenopausal breast cancer, defined by age at diagnosis, the hazard ratio was elevated for exposure to synthetic MWF (chemical lubricants with no oil content), possibly suggesting a different mechanism in the younger women with breast cancer. This study adds to the limited literature regarding quantitative chemical exposures and breast cancer risk. PMID- 29020169 TI - Factors Associated With All-Cause Mortality Among Patients With Multidrug Resistant Tuberculosis-United States, 1993-2013. AB - We assessed characteristics associated with all-cause mortality among US patients with multidrug-resistant tuberculosis. Mortality decreased from 31% during 1993 2002 to 11% during 2003-2013. Directly observed therapy coverage increased from 74% to 95% and was protective against all-cause mortality after accounting for demographics, clinical characteristics, human immunodeficiency virus status, and period of treatment. PMID- 29020168 TI - Association of DNA Methylation-Based Biological Age With Health Risk Factors and Overall and Cause-Specific Mortality. AB - Measures of biological age based on blood DNA methylation, referred to as age acceleration (AA), have been developed. We examined whether AA was associated with health risk factors and overall and cause-specific mortality. At baseline (1990-1994), blood samples were drawn from 2,818 participants in the Melbourne Collaborative Cohort Study (Melbourne, Victoria, Australia). DNA methylation was determined using the Infinium HumanMethylation450 BeadChip array (Illumina Inc., San Diego, California). Mixed-effects models were used to examine the association of AA with health risk factors. Cox models were used to assess the association of AA with mortality. A total of 831 deaths were observed during a median 10.7 years of follow-up. Associations of AA were observed with male sex, Greek nationality (country of birth), smoking, obesity, diabetes, lower education, and meat intake. AA measures were associated with increased mortality, and this was only partly accounted for by known determinants of health (hazard ratios were attenuated by 20%-40%). Weak evidence of heterogeneity in the association was observed by sex (P = 0.06) and cause of death (P = 0.07) but not by other factors. DNA methylation-based AA measures are associated with several major health risk factors, but these do not fully explain the association between AA and mortality. Future research should investigate what genetic and environmental factors determine AA. PMID- 29020171 TI - Comparison of the Impact of Pneumococcal Conjugate Vaccine 10 or Pneumococcal Conjugate Vaccine 13 on Invasive Pneumococcal Disease in Equivalent Populations. AB - Background: Pneumococcal conjugate vaccine 10 (PCV10) and pneumococcal conjugate vaccine 13 (PCV13), are used in childhood immunization programs worldwide, but direct comparisons of impacts against invasive pneumococcal disease (IPD) in equivalent populations have not been performed. We compared the vaccines (prevaccination 2007-2009 vs postvaccination 2013-2016) in Sweden, where the 21 counties use either PCV10 or PCV13 (introduced 2009-2010). Methods: All IPD episodes (n = 16992) were recorded in Sweden during 2005-2016. Of 14 186 isolates from 2007-2016, 13 468 (94.9%) were characterized with serotyping and 12 235 (86.2%) with antibiotic susceptibility. Poisson models assessed changes in incidence over time. Results: Invasive pneumococcal disease incidences decreased between 2005 and 2016 in vaccinated children (by 68.5%), and in the whole population (by 13.5%), but not among the elderly (increased by 2%) due to a substantial increase in nonvaccine types (NVTs). In 2016, NVTs constituted 72% of IPD cases in the elderly. Serotype 6A declined in PCV10 and PCV13 counties, whereas serotype 19A increased in PCV10 counties. There was no effect against serotype 3. Cross-protection was found between 6B and 6A but not between 19F and 19A. Serotype 6C increased in PCV10 counties, but not in PCV13 counties, suggesting cross-protection with 6A, which is included in PCV13. In the elderly, the increase in NVTs, excluding 6C, was more pronounced in PCV13 counties. Conclusions: The overall impact of IPD incidences was not statistically different irrespective of vaccine used. The incidence of serotypes, where the effect of the vaccines differed, will influence the cost-effectiveness of which vaccine to use in immunization programs. The dominance of NVTs suggests a limited effect of current pediatric PCVs against IPD in the elderly. PMID- 29020172 TI - Inadequacy of High-Dose Fluconazole Monotherapy Among Cerebrospinal Fluid Cryptococcal Antigen (CrAg)-Positive Human Immunodeficiency Virus-Infected Persons in an Ethiopian CrAg Screening Program. AB - A total of 817 human immunodeficiency virus-infected Ethiopians with CD4 <150 cells/mL underwent plasma cryptococcal antigen (CRAG) screening. CRAG prevalence was 6.2%. Of participants with plasma CRAG titers >1:640, 96% (27 of 28) had cryptococcal meningitis (cerebrospinal fluid CRAG-positive) whereas 50% (7 of 14) with 1:160-1:320 titers had meningitis. With fluconazole 1200 mg/d therapy, 68% of meningitis patients (23 of 34) died within 3 months. Plasma CRAG titers >1:160 predict meningitis, requiring more intensive antifungal therapy. PMID- 29020175 TI - Urinary Lipoarabinomannan Detection and Disseminated Nontuberculous Mycobacterial Disease. PMID- 29020173 TI - Time to Sputum Culture Conversion and Treatment Outcomes Among Patients with Isoniazid-Resistant Tuberculosis in Atlanta, Georgia. AB - Background: Although isoniazid-resistant tuberculosis is more common than multidrug-resistant tuberculosis, it has been much less studied. We examined the impact of isoniazid resistance and treatment regimen, including use of a fluoroquinolone, on clinical outcomes. Methods: A retrospective cohort study among patients with sputum culture-positive tuberculosis was performed. Early fluoroquinolone (FQ) use was defined as receiving >=5 doses during the first month of treatment. The primary outcome was time to sputum culture conversion (tSCC). A multivariate proportional hazards model was used to determine the association of isoniazid resistance with tSCC. Results: Among 236 patients with pulmonary tuberculosis, 59 (25%) had isoniazid resistance. The median tSCC was similar for isoniazid-resistant and -susceptible cases (35 vs 29 days; P = .39), and isoniazid resistance was not associated with tSCC in multivariate analysis (adjusted hazard ratio = 0.83; 95% confidence interval [CI], .59-1.17). Early FQ use was higher in isoniazid-resistant than -susceptible cases (20% vs 10%; P = .05); however, it was not significantly associated with tSCC in univariate analysis (hazard ratio = 1.48; 95% CI, .95-2.28). Patients with isoniazid resistant tuberculosis were treated with regimens containing rifampin, pyrazinamide, and ethambutol +/- a FQ for a median of 9.7 months. Overall, 191 (83%) patients were cured. There was no difference in initial treatment outcomes; however, all cases of acquired-drug resistance (n = 1) and recurrence (n = 3) occurred among patients with isoniazid-resistant tuberculosis. Conclusions: There was no significant association with isoniazid resistance and tSCC or initial treatment outcomes. Although patients with isoniazid-resistant tuberculosis had a high cure rate, the cases of recurrence and acquired drug resistance are concerning and highlight the need for longer-term follow-up studies. PMID- 29020176 TI - DPP4, the Middle East Respiratory Syndrome Coronavirus Receptor, is Upregulated in Lungs of Smokers and Chronic Obstructive Pulmonary Disease Patients. AB - Background: Middle East respiratory syndrome coronavirus (MERS-CoV) causes pneumonia with a relatively high case fatality rate in humans. Smokers and chronic obstructive pulmonary disease (COPD) patients have been reported to be more susceptible to MERS-CoV infection. Here, we determined the expression of MERS-CoV receptor, dipeptidyl peptidase IV (DPP4), in lung tissues of smokers without airflow limitation and COPD patients in comparison to nonsmoking individuals (never-smokers). Methods: DPP4 expression was measured in lung tissue of lung resection specimens of never-smokers, smokers without airflow limitation, COPD GOLD stage II patients and in lung explants of end-stage COPD patients. Both control subjects and COPD patients were well phenotyped and age-matched. The mRNA expression was determined using qRT-PCR and protein expression was quantified using immunohistochemistry. Results: In smokers and subjects with COPD, both DPP4 mRNA and protein expression were significantly higher compared to never-smokers. Additionally, we found that both DPP4 mRNA and protein expression were inversely correlated with lung function and diffusing capacity parameters. Conclusions: We provide evidence that DPP4 is upregulated in the lungs of smokers and COPD patients, which could partially explain why these individuals are more susceptible to MERS-CoV infection. These data also highlight a possible role of DPP4 in COPD pathogenesis. PMID- 29020177 TI - Reply to Vos et al. PMID- 29020174 TI - The Impact of Statin and Angiotensin-Converting Enzyme Inhibitor/Angiotensin Receptor Blocker Therapy on Cognitive Function in Adults With Human Immunodeficiency Virus Infection. AB - Background: Although statins, angiotensin-converting enzyme inhibitors (ACEI) or angiotensin receptor blockers (ARB) are generally well tolerated, the impact of these therapies individually or in combination on the change in neurocognitive function in persons with human immunodeficiency virus infection is unknown. Methods: The study included participants in the AIDS Clinical Trials Group Longitudinal Linked Randomized Trials cohort participants not receiving a statin or ACEI/ARB within 30 days of first neurologic assessment (baseline), with assessments by NPZ-3 (z score of averaged Trailmaking A and B tests and digit symbol test [DST]) from >=2 measurements. Marginal structural models estimated the causal effect of statin or ACEI/ARB initiation on neurocognitive function; initial constant slope was assumed during the first year of treatment and a second constant slope thereafter. Results: Of 3949 eligible participants, 16% started therapy with a statin, 11% with an ACEI/ARB, and 5% with both. Statin therapy had no significant effect on the composite NPZ-3 (primary outcome), Trailmaking B test, or DST. A small, nonsignificant positive effect on the Trailmaking A test was seen during year 1 (estimate, 0.088; 95% confidence interval, -.010 to .187; P = .08) and a small but significant negative effect ( 0.033; -.058 to -.009; P = .007) in each subsequent year. ACEI/ARB therapy had a significant negative effect on the DST (-0.117; 95% confidence interval, -.217 to .016; P = .02) during year 1 but minimal effect in subsequent years or on other neurocognitive domains. Conclusions: In summary, although modest declines in neurocognitive performance were seen in single domains with statin or ACEI/ARB therapy, we did not find consistent evidence that statins or ACEI/ARB have an effect on global neurocognitive function. Future studies should focus on long term neurocognitive effects. PMID- 29020178 TI - Uptake of Antibiotic Stewardship Programs in US Acute Care Hospitals: Findings From the 2015 National Healthcare Safety Network Annual Hospital Survey. AB - To assess uptake of the Centers for Disease Control and Prevention's Core Elements of Hospital Antibiotic Stewardship Programs, we analyzed stewardship practices as reported in the 2015 National Healthcare Safety Network's Annual Hospital Survey. Hospital uptake of all 7 core elements increased from 40.9% in 2014 to 48.1% in 2015. PMID- 29020179 TI - The Household Influenza Vaccine Effectiveness Study: Lack of Antibody Response and Protection Following Receipt of 2014-2015 Influenza Vaccine. AB - Background: Antigenically drifted A(H3N2) viruses circulated extensively during the 2014-2015 influenza season. Vaccine effectiveness (VE) was low and not significant among outpatients but in a hospitalized population was 43%. At least one study paradoxically observed increased A(H3N2) infection among those vaccinated 3 consecutive years. Methods: We followed a cohort of 1341 individuals from 340 households. VE against laboratory-confirmed influenza was estimated. Hemagglutination-inhibition and neuraminidase-inhibition antibody titers were determined in subjects >=13 years. Results: Influenza A(H3N2) was identified in 166 (12%) individuals and B(Yamagata) in 34 (2%). VE against A(H3N2) was -3% (95% confidence interval [CI]: -55%, 32%) and similarly ineffective between age groups; increased risk of infection was not observed among those vaccinated in 2 or 3 previous years. VE against influenza B(Yamagata) was 57% (95% CI: -3%, 82%) but only significantly protective in children <9 years (87% [95% CI: 43%, 97%]). Less than 20% of older children and adults had >=4-fold antibody titer rise against influenza A(H3N2) and B antigens following vaccination; responses were surprisingly similar for antigens included in the vaccine and those similar to circulating viruses. Antibody against A/Hong Kong/4801/14, similar to circulating 2014-2015 A(H3N2) viruses and included in the 2016-2017 vaccine, did not significantly predict protection. Conclusions: Absence of VE against A(H3N2) was consistent with circulation of antigenically drifted viruses; however, generally limited antibody response following vaccination is concerning even in the context of antigenic mismatch. Although 2014-2015 vaccines were not effective in preventing A(H3N2) infection, no increased susceptibility was detected among the repeatedly vaccinated. PMID- 29020181 TI - A Healthcare Improvement Intervention Combining Nucleic Acid Microarray Testing With Direct Physician Response for Management of Staphylococcus aureus Bacteremia. AB - Background: Nucleic acid microarray (NAM) testing for detection of Staphylococcus aureus bacteremia (SAB) and S. aureus resistance gene determinants can reduce time to targeted antibiotic administration. Evidence-based management of SAB includes bedside infectious diseases (ID) consultation. As a healthcare improvement initiative at our institution, with the goal of improving management and outcomes for subjects with SAB, we implemented NAM with a process for responding to positive NAM results by directly triggered, mandatory ID consultation. Methods: Preintervention, SAB was identified by traditional culture and results passively directed to antibiotic stewardship program (ASP) pharmacists. Postintervention, SAB in adult inpatients was identified by Verigene Gram-Positive Blood Culture test, results paged directly to ID fellow physicians, and consultation initiated immediately. In the new process, ASP assisted with management after the initial consultation. A single-center, retrospective, pre /postintervention analysis was performed. Results: One hundred six preintervention and 120 postintervention subjects were assessed. Time to ID consultation after notification of a positive blood culture decreased 26.0 hours (95% confidence interval [CI], 45.1 to 7.1 hours, P < .001) postintervention compared with preintervention. Time to initiation of targeted antibiotic decreased by a mean of 21.2 hours (95% CI, 31.4 to 11.0 hours, P < .001) and time to targeted antibiotics for methicillin-sensitive S. aureus decreased by a mean of 40.7 hours (95% CI, 58.0 to 23.5 hours, P < .001). The intervention was associated with lower in-hospital (13.2% to 5.8%, P = .047) and 30-day (17.9% to 8.3%, P = .025) mortality. Conclusions: Compared with an ASP-directed response to traditionally detected SAB, an efficient physician response to NAM was associated with improved care and outcomes for SAB. PMID- 29020182 TI - The Manufacturers' Perspective on World Health Organization Prequalification of In Vitro Diagnostics. AB - In vitro diagnostic devices (IVDs) help clinicians determine specific conditions, monitor therapeutic efficacy, and prevent drug resistance development. While stringent regulatory authorities (SRAs) regulate IVDs in most high-income countries, regulatory authorities in many low- and middle-income countries (LMICs) are nonexistent or do not enforce rigorous standards. In 2010, the World Health Organization established its Prequalification of In Vitro Diagnostics (PQDx) program to ensure "access to safe, appropriate and affordable" IVDs, especially in LMICs with little or no domestic regulatory frameworks, thereby reaching underserved populations. However, challenges in PQDx policies and procedures include an overloaded pipeline, timelines not publicly available, confusion about which products PQDx focuses on, perceived burden for documenting changes to prequalified products, overlap with SRA approvals, and uncertainty around long-term financing. PQDx can maximize its impact by considering the perspective of IVD manufacturers; similarly, IVD manufacturers should exercise adequate quality control over their submissions and associated processes. PMID- 29020180 TI - Molecular Tracing of the Geographical Origin of Human Immunodeficiency Virus Type 1 Infection and Patterns of Epidemic Spread Among Migrants Who Inject Drugs in Athens. AB - Background: High numbers of human immunodeficiency virus type 1 (HIV-1) infections among people who inject drugs (PWID) have been diagnosed in Athens, Greece, since 2011. We aimed to trace the geographic origin of HIV-1 infection for migrants who inject drugs and to investigate whether transmissions occur more frequently among migrants than among Greek nationals. Methods: Multiple cross sectional studies were pooled to assemble all persons diagnosed with HIV-1 in Greece between 1 January 2011 and 31 October 2014. Phylogenetic analyses used maximum likelihood estimation. The hypothesis of ethnic compartmentalization was tested by reconstructing ancestral states of characters at the tips using the criterion of parsimony over a set of bootstrap trees. Results: Of 2274 persons, 38.4% were PWID. Phylogenetic analyses showed the existence of 4 major PWID specific local transmission networks (LTNs): CRF14_BG (437 [58.6%]), CRF35_AD (139 [18.6%]), subtype B (116 [15.6%]), and subtype A (54 [7.2%]). Of 184 non Greek PWID, 78.3% had been infected within the PWID-LTNs. For 173 (94.3%), the origin of their infection was assumed to be in Greece (postmigration). For PWID infected within LTNs, transmissions for subtype A and CRF14_BG occurred more frequently among migrants than would be expected by chance (phyloethnic study). Conclusions: Our analysis showed that the majority of infections among migrants occurred postmigration. The existence of significant transmission networking among migrants highlights that this population is a priority for HIV prevention. As molecular analysis can estimate the probable country of HIV infection, it can help to inform the design of public health strategies. PMID- 29020183 TI - Rapid Tests for Common Respiratory Viruses. PMID- 29020186 TI - Rabies Postexposure Prophylaxis Noncompletion After Dog Bites: Estimating the Unseen to Meet the Needs of the Underserved. AB - Postexposure prophylaxis (PEP) prevents human rabies and is accessible in Cambodia principally in Phnom Penh, the capital. Timely, affordable access to PEP is a challenge for the mainly rural population. We aimed to identify districts independently associated with PEP noncompletion to position frontline vaccination centers. We analyzed the 2009-2013 database at the Rabies Prevention Center at the Institut Pasteur du Cambodge, Phnom Penh. Logistic regressions identified nongeographic determinants of PEP noncompletion as well as the districts that were independently associated with noncompletion after adjustment for these determinants. The influence of distance by road was estimated using a boosted regression-trees model. We computed a population attributable fraction (rabies index (RI)) for each district and developed a map of this RI distribution. A cartographic analysis based on the statistic developed by Getis and Ord identified clusters of high-RI districts. Factors independently associated with noncompletion were patients' district of residence, male sex, age 15-49 years, initial visit during rice harvest, the dog's status (culled or disappeared), and a prescribed PEP protocol requiring more than 3 PEP sessions (4 or 5). Four clusters of high-RI districts were identified using this analytical strategy, which is applicable to many vaccination or other health services. Positioning frontline PEP centers in these districts could significantly widen access to timely and adequate PEP. PMID- 29020184 TI - Risk of Acute Liver Injury After Statin Initiation by Human Immunodeficiency Virus and Chronic Hepatitis C Virus Infection Status. AB - Background: Patients with human immunodeficiency virus (HIV) and/or chronic hepatitis C virus (HCV) infection may be prescribed statins as treatment for metabolic/cardiovascular disease, but it remains unclear if the risk of acute liver injury (ALI) is increased for statin initiators compared to nonusers in groups classified by HIV/HCV status. Methods: We conducted a cohort study to compare rates of ALI in statin initiators vs nonusers among 7686 HIV/HCV coinfected, 8155 HCV-monoinfected, 17739 HIV-monoinfected, and 36604 uninfected persons in the Veterans Aging Cohort Study (2000-2012). We determined development of (1) liver aminotransferases >200 U/L, (2) severe ALI (coagulopathy with hyperbilirubinemia), and (3) death, all within 18 months. Cox regression was used to determine propensity score-adjusted hazard ratios (HRs) with 95% confidence intervals (CIs) of outcomes in statin initiators compared to nonusers across the groups. Results: Among HIV/HCV-coinfected patients, statin initiators had lower risks of aminotransferase levels >200 U/L (HR, 0.66 [95% CI, .53-.83]), severe ALI (HR, 0.23 [95% CI, .12-.46]), and death (HR, 0.36 [95% CI, .28-.46]) compared with statin nonusers. In the setting of chronic HCV alone, statin initiators had reduced risks of aminotransferase elevations (HR, 0.57 [95% CI, .45-.72]), severe ALI (HR, 0.15 [95% CI, .06-.37]), and death (HR, 0.42 [95% CI, .32-.54]) than nonusers. Among HIV-monoinfected patients, statin initiators had lower risks of aminotransferase increases (HR, 0.52 [95% CI, .40-.66]), severe ALI (HR, 0.26 [95% CI, .13-.55]), and death (HR, 0.19 [95% CI, .16-.23]) compared with nonusers. Results were similar among uninfected persons. Conclusions: Regardless of HIV and/or chronic HCV status, statin initiators had a lower risk of ALI and death within 18 months compared with statin nonusers. PMID- 29020185 TI - Stool Microbiota at Neutrophil Recovery Is Predictive for Severe Acute Graft vs Host Disease After Hematopoietic Cell Transplantation. AB - Background: Graft-versus-host disease (GVHD) is common after allogeneic hematopoietic cell transplantation (HCT). Risk for death from GVHD has been associated with low bacterial diversity in the stool microbiota early after transplant; however, the specific species associated with GVHD risk remain poorly defined. Methods: We prospectively collected serial weekly stool samples from 66 patients who underwent HCT, starting pre-transplantation and continuing weekly until 100 days post-transplant, a total of 694 observations in HCT recipients. We used 16S rRNA gene polymerase chain reaction with degenerate primers, followed by high-throughput sequencing to assess the relative abundance of sequence reads from bacterial taxa in stool samples over time. Results: The gut microbiota was highly dynamic in HCT recipients, with loss and appearance of taxa common on short time scales. As in prior studies, GVHD was associated with lower alpha diversity of the stool microbiota. At neutrophil recovery post-HCT, the presence of oral Actinobacteria and oral Firmicutes in stool was positively correlated with subsequent GVHD; Lachnospiraceae were negatively correlated. A gradient of bacterial species (difference of the sum of the relative abundance of positive correlates minus the sum of the relative abundance of negative correlates) was most predictive (receiver operator characteristic area under the curve of 0.83) of subsequent severe acute GVHD. Conclusions: The stool microbiota around the time of neutrophil recovery post-HCT is predictive of subsequent development of severe acute GVHD in this study. PMID- 29020187 TI - Outbreak of Influenza A(H7N2) Among Cats in an Animal Shelter With Cat-to-Human Transmission-New York City, 2016. AB - We describe the first case of cat-to-human transmission of influenza A(H7N2), an avian-lineage influenza A virus, that occurred during an outbreak among cats in New York City animal shelters. We describe the public health response and investigation. PMID- 29020188 TI - Human Cytomegalovirus-Specific Memory CD4+ T-Cell Response and Its Correlation With Virus Transmission to the Fetus in Pregnant Women With Primary Infection. AB - Background: Primary human cytomegalovirus (HCMV) infection during pregnancy is the major cause of congenital viral sequelae. The HCMV-specific T-cell response may have a role in the prevention of virus transmission to the fetus. Methods: HCMV-specific memory T cells were investigated in the second month after primary infection onset in 44 pregnant women (15 transmitting the infection to the fetus) and 8 pregnant women with remote infection. Peripheral blood mononuclear cells were stimulated for 12 days with peptide pools of HCMV proteins IE-1, IE-2, and pp65, and subsequently restimulated for 24 hours with the same peptide pools in a cultured enzyme-linked immunospot (ELISPOT) assay. Results: In pregnant women with primary infection, the cultured ELISPOT assay detected a higher T-cell response to pp65 than to IE-1 or IE-2, whereas in remote infection pp65-, IE-1-, and IE-2-specific T cells were detected at comparable levels. During primary infection, the cultured ELISPOT response was mainly mediated by CD4+ T cells, and was lower than in remote infection. Strikingly, the cultured ELISPOT response to pp65 (but not to IE-1 or IE-2) was significantly higher in nontransmitting mothers. To detect other factors potentially associated with nontransmission, different serological parameters were analyzed. Only immunoglobulin G avidity index was higher in nontransmitting mothers, who showed also a lower DNAemia level. These 2 parameters remained associated with congenital infection in multivariate analysis. Conclusions: Determination of HCMV-specific T cells by cultured ELISPOT, in pregnant women with primary HCMV infection, in association with avidity index and DNAemia may help to assess the risk of HCMV fetal transmission. PMID- 29020190 TI - The Mental Health Benefits of Acquiring a Home in Older Age: A Fixed-Effects Analysis of Older US Adults. AB - Homeownership is consistently associated with better mental health, but whether becoming a homeowner in later in life has positive psychological benefits has not, to our knowledge, been examined. We assessed whether acquiring a home after age 50 years was associated with depression in a representative sample of older US adults. We used individual fixed-effects models based on data from 20,524 respondents aged >=50 years from the Health and Retirement Study, who were interviewed biennially during 1993-2010. Depressive symptoms were measured using the 8-item Center for Epidemiologic Studies Depression Scale. Controlling for confounders, becoming a homeowner in later life predicted a decline in depressive symptoms in the same year (beta = -0.0768, 95% confidence interval (CI): -0.152, 0.007). The association remained significant after 2 years (beta = -0.0556, 95% CI: -0.134, -0.001) but weakened afterward. Buying a home for reasons associated with positive characteristics of the new house or neighborhood drove this association (beta = -0.426, 95% CI: -0.786, -0.066), while acquiring a home for reasons associated with characteristics of the previous home or neighborhood, the desire to be closer to relatives, downsizing, or upsizing did not predict mental health improvements. Findings suggest that there are small but significant benefits for mental health associated with acquiring a home in older age. PMID- 29020189 TI - Macrofilaricidal Efficacy of Repeated Doses of Ivermectin for the Treatment of River Blindness. AB - Background: Mass drug administration (MDA) with ivermectin is the cornerstone of efforts to eliminate human onchocerciasis by 2020 or 2025. The feasibility of elimination crucially depends on the effects of multiple ivermectin doses on Onchocerca volvulus. A single ivermectin (standard) dose clears the skin-dwelling microfilarial progeny of adult worms (macrofilariae) and temporarily impedes the release of such progeny by female macrofilariae, but a macrofilaricidal effect has been deemed minimal. Multiple doses of ivermectin may cumulatively and permanently reduce the fertility and shorten the lifespan of adult females. However, rigorous quantification of these effects necessitates interrogating longitudinal data on macrofilariae with suitably powerful analytical techniques. Methods: Using a novel mathematical modeling approach, we analyzed, at an individual participant level, longitudinal data on viability and fertility of female worms from the single most comprehensive multiple-dose clinical trial of ivermectin, comparing 3-monthly with annual treatments administered for 3 years in Cameroon. Results: Multiple doses of ivermectin have a partial macrofilaricidal and a modest permanent sterilizing effect after 4 or more consecutive treatments, even at routine MDA doses (150 ug/kg) and frequencies (annual). The life expectancy of adult O. volvulus is reduced by approximately 50% and 70% after 3 years of annual or 3-monthly (quarterly) exposures to ivermectin. Conclusions: Our quantification of macrofilaricidal and sterilizing effects of ivermectin should be incorporated into transmission models to inform onchocerciasis elimination efforts in Africa and residual foci in Latin America. It also provides a framework to assess macrofilaricidal candidate drugs currently under development. PMID- 29020192 TI - Single-Dose Azithromycin for the Treatment of Haemophilus ducreyi Skin Ulcers in Papua New Guinea. AB - Background: Haemophilus ducreyi (HD) and Treponema pallidum subspecies pertenue (TP) are major causative agents of cutaneous ulcer (CU) in the tropics. Azithromycin is recommended to treat sexually transmitted HD infections and has good in vitro activity against HD strains from both genital and skin ulcers. We investigated the efficacy of oral single-dose azithromycin on HD-CU. Methods: We conducted a community-based cohort study in Lihir Island, Papua New Guinea, from October 2014 through May 2016. Consenting patients with skin ulcers >1 cm in diameter were eligible for this study and had collected a lesional swab for polymerase chain reaction (PCR). All participants were treated with single-dose azithromycin (30 mg/kg) and were followed up for assessment of clinical resolution. We retrospectively classified patients according to PCR results into HD, TP, and PCR-negative groups. The primary endpoint was healing rates of HD-CU at 14 days after treatment. Results: We obtained full outcome data from 246 patients; 131 (53.3%) were HD PCR positive, 37 (15.0%) were TP positive, and 78 (31.7%) were negative for all tests. Healing rates were 88.5% (95% confidence interval [CI], .82-.93) in the HD group, 78.4% [95% CI, .63-.89] in the TP group, and 74.4% (95% CI, .64-.83) in the PCR-negative group. If we included the participants with improved ulcers, the healing rates increased to 94.7%, 97.3%, and 89.7% respectively. HD cases classified as not healed all converted to HD negative PCR. Conclusions: Based upon clinical resolution and PCR conversion to HD negative, a single oral dose of azithromycin is efficacious for the treatment of HD-CU. These results have implications for the treatment of individual patients and for the use of antibiotics in public health strategies to control CU in the tropics. PMID- 29020193 TI - Generalizing Randomized Clinical Trial Results: Implementation and Challenges Related to Missing Data in the Target Population. AB - Statins are indicated in patients with elevated levels of high-sensitivity C reactive protein and normal low-density lipoprotein cholesterol based on results of the multicountry trial, Justification for the Use of Statins in Prevention: an Intervention Trial Evaluating Rosuvastatin (JUPITER) (2003-2008), but the benefit in real-world populations remains unknown. We sought to generalize JUPITER results to trial-eligible population using data from the UK Clinical Practice Research Datalink (CPRD), 2001-2014. We multiply imputed missing baseline characteristics for the CPRD population and selected the trial-eligible participants as the target population based on observed and imputed values. Trial participants were weighted to be representative of the CPRD population (n = 383,418) based on individual predicted probability of selection into the trial. Trial participants were also standardized to the CPRD population without missing values (n = 2,677). In JUPITER, rosuvastatin reduced cardiovascular risk with a 3 year risk difference of -2.0% (95% confidence interval (CI): -2.9, -1.1). The rosuvastatin effect was muted in the first 2 years but remained strong at 3 years after standardizing to the imputed CPRD population (3-year risk difference = 2.7%; 95% CI: -5.8, 0.4) and the CPRD population without missing data (3-year risk difference = -1.7%; 95% CI: -3.5, 0.1). The study serves as an illustration of possible approaches to understanding generalizability of trials using real world databases given limitations due to missing data on inclusion/exclusion criteria. PMID- 29020194 TI - Comparison of Measures of Adherence to Human Immunodeficiency Virus Preexposure Prophylaxis Among Adolescent and Young Men Who Have Sex With Men in the United States. AB - Background: Young men-who-have-sex-with-men (MSM) are disproportionately impacted by human immunodeficiency virus (HIV). Preexposure prophylaxis (PrEP) could reduce HIV acquisition among youth, but suboptimal adherence threatens effectiveness. Optimal metrics of PrEP adherence among adolescents have remain undefined. Methods: The Adolescent Trials Network 110/113 studies provided daily oral PrEP with tenofovir (TFV) disoproxil fumarate/emtricitabine over 48 weeks to a diverse population of MSM (aged 15-22 years). Self-reported adherence was assessed and PrEP drug concentrations measured from hair and dried blood spot (DBS) samples; 23% of participants received Wisepill electronic monitoring devices. The average number of PrEP doses per week taken was estimated, and concordance between measures assessed. Results: Among 243 participants, hair samples were collected at 1186/1238 (96%) person-visits. The concordance of TFV levels in hair and TFV-diphosphate in DBS around thresholds consistent with taking >=4 and 7 PrEP doses/week was high (76% and 80%). Hair and DBS concentrations correlated poorly with self-report and Wisepill metrics. Through week 12, 40%-60% of participants (by hair and DBS), <=31% (Wisepill), and >85% (self-report) were estimated to have taken >=4 PrEP doses/week (a threshold associated with protection among MSM). For all measures except self-report, adherence declined over time, with half of participants taking <2 doses/week by week 48. Conclusions: Among youth on PrEP, adherence waned over time. Self-report overestimated adherence, and use of Wisepill was limited. Hair collection was highly acceptable and provided similar interpretations to DBS. Incorporation of either metric in future PrEP studies among youth could identify suboptimal adherence and trigger interventions. PMID- 29020191 TI - QuantiFERON-TB Gold In-Tube as a Confirmatory Test for Tuberculin Skin Test in Tuberculosis Contact Tracing: A Noninferiority Clinical Trial. AB - Background: Screening strategies based on interferon-gamma release assays in tuberculosis contact tracing may reduce the need for preventive therapy without increasing subsequent active disease. Methods: We conducted an open-label, randomized trial to test the noninferiority of a 2-step strategy with the tuberculin skin test (TST) followed by QuantiFERON-TB Gold In-Tube (QFT-GIT) as a confirmatory test (the TST/QFT arm) to the standard TST-alone strategy (TST arm) for targeting preventive therapy in household contacts of patients with tuberculosis. Participants were followed for 24 months after randomization. The primary endpoint was the development of tuberculosis, with a noninferiority margin of 1.5 percentage points. Results: A total of 871 contacts were randomized. Four contacts in the TST arm and 2 in the TST/QFT arm developed tuberculosis. In the modified intention-to-treat analysis, this accounted for 0.99% in the TST arm and 0.51% in the TST/QFT arm (-0.48% difference; 97.5% confidence interval [CI], -1.86% to 0.90%); in the per-protocol analysis, the corresponding rates were 1.67% and 0.82% in the TST and TST/QFT arms, respectively (-0.85% difference; 97.5% CI, -3.14% to 1.43%). Of the 792 contacts analyzed, 65.3% in the TST arm and 42.2% in the TST/QFT arm were diagnosed with tuberculosis infection (23.1% difference; 95% CI, 16.4% to 30.0%). Conclusions: In low-incidence settings, screening household contacts with the TST and using QFT-GIT as a confirmatory test is not inferior to TST-alone for preventing active tuberculosis, allowing a safe reduction of preventive treatments. Clinical Trials Registration: NCT01223534. PMID- 29020197 TI - Sickle Cell Trait and Heat Injury Among US Army Soldiers. AB - There is concern that sickle cell trait (SCT) increases risk of exertional collapse, a primary cause of which is heat injury. However, to our knowledge, no population-based studies among active individuals have addressed this, representing a critical evidence gap. We conducted a retrospective cohort study of SCT-tested African-American soldiers who were on active duty in the US Army anytime between January 2011 and December 2014. Using Cox proportional hazards models and adjusting for demographic and medical factors, we observed no significant associations between SCT and either mild heat injury (hazard ratio (HR) = 1.15, 95% confidence interval (CI): 0.84, 1.56; n = 45,999) or heat stroke (HR = 1.11, 95% CI: 0.44, 2.79; n = 46,183). Risk of mild heat injury was substantially higher among soldiers with recent prescriptions for antipsychotic agents (HR = 3.25, 95% CI: 1.33, 7.90). Risk of heat stroke was elevated among those with a prior mild heat injury (HR = 17.7, 95% CI: 8.50, 36.7) and among overweight and obese individuals (HR = 2.91 (95% CI: 1.38, 6.17) and HR = 4.04 (95% CI: 1.72, 9.45), respectively). In a setting where universal precautions are utilized to mitigate risk of exertion-related illnesses, SCT is not associated with either mild heat injury or heat stroke. PMID- 29020195 TI - Impact of Pneumococcal Conjugate Vaccines on Pneumonia Hospitalizations in High- and Low-Income Subpopulations in Brazil. AB - Background: Pneumococcal conjugate vaccines (PCVs) are being used worldwide. A key question is whether the impact of PCVs on pneumonia is similar in low- and high-income populations. However, most low-income countries, where the burden of disease is greatest, lack reliable data that can be used to evaluate the impact. Data from middle-income countries that have both low- and high-income subpopulations can provide a proxy measure for the impact of the vaccine in low income countries. Methods: We evaluated the impact of PCV10 on hospitalizations for all-cause pneumonia in Brazil, a middle-income country with localities that span a broad range of human development index (HDI) levels. We used complementary time series and spatiotemporal methods (synthetic controls and hierarchical Bayesian spatial regression) to test whether the decline in pneumonia hospitalizations associated with vaccine introduction varied across the socioeconomic spectrum. Results: We found that the declines in all-cause pneumonia hospitalizations in children and young and middle-aged adults did not vary substantially across low and high HDI subpopulations. Moreover, the estimated declines seen in infants and young adults were associated with higher levels of uptake of the vaccine at a local level. Conclusions: These results suggest that PCVs have an important impact on hospitalizations for all-cause pneumonia in both low- and high-income populations. PMID- 29020196 TI - The Risk and Predictors of Visceral Leishmaniasis Relapse in Human Immunodeficiency Virus-Coinfected Patients in Ethiopia: A Retrospective Cohort Study. AB - Background: East Africa, where Leishmania donovani is prevalent, faces the highest burden world-wide of visceral leishmaniasis (VL) and human immunodeficiency virus (HIV) coinfection. However, data on the risk and predictors of VL relapse are scarce. Such information is vital to target medical follow-up and interventions to those at highest risk. Methods: We conducted a retrospective cohort study at a Medecins Sans Frontieres-supported health center in northwest Ethiopia. We included adult VL-HIV coinfected patients treated for VL and discharged cured between February 2008 and February 2013. The risk of relapse was calculated using Kaplan-Meier methods, and predictors were determined using Cox regression models. Results: Of the 146 patients included, 140 (96%) were male and the median age was 31 years. At the index VL diagnosis, 110 (75%) had primary VL, 57 (40%) were on antiretroviral therapy (ART), and the median CD4 count was 149 cells/uL. The median follow-up time after cure was 11 months, during which 44 (30%) patients relapsed. The risk of relapse was 15% at 6 months, 26% at 12 months, and 35% at 24 months. Predictors of relapse were: not being on ART at VL diagnosis, ART not initiated during VL treatment, and high tissue parasite load (parasite grade 6+) at VL diagnosis. Conclusions: The risk of VL relapse in coinfected patients was high, particularly in those not on ART or presenting with a high tissue parasite load. These patients should be preferentially targeted for secondary prophylaxis and/or regular medical follow up. Timely ART initiation in all coinfected patients is crucial. PMID- 29020198 TI - A Cool Reception for Desirability of Outcome Ranking (DOOR)/Response Adjusted for Duration of Antibiotic Risk (RADAR) in Intra-abdominal Infections. PMID- 29020199 TI - Viral Surveillance in Serum Samples From Patients With Acute Liver Failure By Metagenomic Next-Generation Sequencing. AB - Background: Twelve percent of all acute liver failure (ALF) cases are of unknown origin, often termed indeterminate. A previously unrecognized hepatotropic virus has been suspected as a potential etiologic agent. Methods: We compared the performance of metagenomic next-generation sequencing (mNGS) with confirmatory nucleic acid testing (NAT) to routine clinical diagnostic testing in detection of known or novel viruses associated with ALF. Serum samples from 204 adult ALF patients collected from 1998 to 2010 as part of a nationwide registry were analyzed. One hundred eighty-seven patients (92%) were classified as indeterminate, while the remaining 17 patients (8%) served as controls, with infections by either hepatitis A virus or hepatitis B virus (HBV), or a noninfectious cause for their ALF. Results: Eight cases of infection from previously unrecognized viral pathogens were detected by mNGS (4 cases of herpes simplex virus type 1, including 1 case of coinfection with HBV, and 1 case each of HBV, parvovirus B19, cytomegalovirus, and human herpesvirus 7). Several missed dual or triple infections were also identified, and assembled viral genomes provided additional information on genotyping and drug resistance mutations. Importantly, no sequences corresponding to novel viruses were detected. Conclusions: These results suggest that ALF patients should be screened for the presence of uncommon viruses and coinfections, and that most cases of indeterminate ALF in the United States do not appear to be caused by novel viral pathogens. In the future, mNGS testing may be useful for comprehensive diagnosis of viruses associated with ALF, or to exclude infectious etiologies. PMID- 29020200 TI - The Effect of Female Sex on Hepatitis C Incidence Among People Who Inject Drugs: Results From the International Multicohort InC3 Collaborative. AB - Background: The objective of this study was to assess differences in hepatitis C virus (HCV) incidence by sex in people who inject drugs (PWID), using a large international multicohort set of pooled biological and behavioral data from prospective observational studies of incident human immunodeficiency virus (HIV) and HCV infections in high-risk cohorts (the InC3 Collaborative). Methods: HCV infection date was estimated based on a hierarchy of successive serological (anti HCV), virological (HCV RNA), and clinical (symptoms and/or liver function tests) data. We used a Cox proportional hazards model to calculate the crude and adjusted female to male (F:M) hazard ratio (HR) for HCV incidence using biological sex as the main exposure. Results: A total of 1868 PWID were observed over 3994 person-years of observation (PYO). Unadjusted F:M HR was 1.38 (95% confidence interval [CI], 1.15-1.65) and remained significant after adjusting for behavioral and demographic risk factors (1.39 [95% CI, 1.12-1.72]). Although syringe and equipment sharing were associated with the highest HCV incidence rate in women (41.62 and 36.83 PYO, respectively), we found no sex differences attributed to these risk factors. Conclusions: Our findings indicate that women who inject drugs may be at greater risk of HCV acquisition than men, independent of demographic characteristics and risk behaviors. Multiple factors, including biological (hormonal), social network, and differential access to prevention services, may contribute to increased HCV susceptibility in women who inject drugs. PMID- 29020201 TI - Novel Method Suggests Global Superiority of Short-Duration Antibiotics for Intra abdominal Infections. AB - Desirability of outcome ranking and response adjusted for duration of antibiotic risk (DOOR/RADAR) are novel and innovative methods of evaluating data in antibiotic trials. We analyzed data from a noninferiority trial of short-course antimicrobial therapy for intra-abdominal infection (STOP-IT), and results suggest global superiority of short-duration therapy for intra-abdominal infections. PMID- 29020204 TI - Linezolid-Resistant Enterococcus faecalis Infection Following Prolonged Low Dosage Linezolid Treatment for Multidrug-Resistant Tuberculosis. PMID- 29020203 TI - Empirical Antibiotic Treatment Does Not Improve Outcomes in Catheter-Associated Urinary Tract Infection: Prospective Cohort Study. AB - Background: Catheter associated urinary tract infection (CAUTI) is the most common healthcare-associated acquired infection. We aimed to describe the short- and long-term survival of patients with CAUTI and the impact of the empirical antibiotic treatment on survival rates. Methods: In this prospective observational study we included consecutive adult patients with a chronic indwelling catheter-associated UTI and sepsis hospitalized in medical departments. The primary outcomes were 30-days all-cause mortality and long-term survival at end of the follow-up. A multivariate analysis using logistic regression and Cox proportional hazard model was performed to identify independent risk factors for an adverse outcome. A propensity-score model for receiving appropriate empirical antibiotic therapy was constructed and used to match patients. Results: Overall, 315 consecutive patients with CAUTI were enrolled. The cohort consisted of elderly to very old patients (mean age 79.2 +/- 11.5). The crude 30-day all-cause mortality rate was 30.8% (97/315). The median survival time was 82 days (interquartile range [IQR] 22-638). Appropriate early empirical treatment had no statistically significant association with 30-day mortality, propensity score-matched odds ratio (OR) 1.39 (0.76-2.55). Similarly, in the propensity-matched cohort, appropriate empirical treatment was not statistically associated with long-term survival (hazard ratio [HR] = 0.99, 95% confidence interval [CI] 0.75-1.3). Conclusions: In our setting, patients with CAUTI had poor short- and long-term prognosis regardless of appropriate empirical antibiotic treatment. Avoiding empirical antibiotics for CAUTI might be an important antibiotic stewardship intervention in hospitals. PMID- 29020202 TI - Rates of and Risk Factors for Adverse Drug Events in Outpatient Parenteral Antimicrobial Therapy. AB - Background: To better monitor patients on outpatient parenteral antimicrobial therapy (OPAT), we need an improved understanding of risk factors for and timing of OPAT-associated adverse drug events (ADEs). Methods: We analyzed a prospective cohort of patients on OPAT discharged from 2 academic medical centers. Patients underwent chart abstraction and a telephone survey. Multivariable analyses estimated adjusted incident rate ratios (aIRR) between clinical and demographic risk factors and clinician-determined clinically significant ADEs. Descriptive data were used to present patient-reported ADEs. Results: Of 339 patients enrolled in the study, 18.0% experienced an ADE (N = 65), of which 49 were significant (14.5%, 2.24/1000 home-OPAT days). Patients with longer courses of therapy had lower rates of ADEs compared with patients treated for 0-13 days (14 27 days: aIRR, 0.44; 95% confidence interval [CI], 0.20-0.99; at least 28 days: aIRR, 0.11; 95% CI, 0.056-0.21). Risk factors for ADEs included female gender and receipt of daptomycin or vancomycin, while treatment for uncomplicated bacteremia and empiric treatment were associated with lower rates of ADEs. Conclusions: OPAT related ADEs were common and often occurred within 2 weeks of hospital discharge. Patients on OPAT should be monitored more closely for ADEs, including clinical assessment and laboratory monitoring, especially within the first weeks after hospital discharge and particularly among women and patients who receive vancomycin. PMID- 29020205 TI - Disability Among Ebola Survivors and Their Close Contacts in Sierra Leone: A Retrospective Case-Controlled Cohort Study. AB - Ebola survivors (21/27 [77.8%]) suffered more disability than their close contacts (6/54 [11.1%]) (adjusted odds ratio, 23.5 [95% confidence interval, 6.5 85.7]; P < .001) when measured by the Washington Group Disability Extended Questionnaire. Major limitations in vision, mobility, cognition, and affect were observed in survivors 1 year following the 2014-2016 Ebola outbreak, highlighting the need for long-term rehabilitation. PMID- 29020207 TI - Dissecting Out the Direct Impacts of Large-Scale Antimicrobial Stewardship Interventions on Clinical Outcomes: Can Confounding Be Overcome? PMID- 29020208 TI - Optimizing Empiric Antibiotic Selection in Sepsis: Turning Probabilities Into Practice. PMID- 29020206 TI - Concordance With Prevention Guidelines and Subsequent Cancer, Cardiovascular Disease, and Mortality: A Longitudinal Study of Older Adults. AB - Reports on the associations between multiple clinical and behavioral health indicators and major health outcomes among older adults are scarce. We prospectively examined concordance with guidelines from the American Cancer Society and American Heart Association for disease prevention in relation to cancer, cardiovascular disease (CVD), and mortality among Cardiovascular Health Study enrollees aged 65-98 years who, at baseline assessment in 1989-1996 (n = 3,491), were free of CVD and cancer. Total and cause-specific mortality, as well as incidence of cancer and CVD, were lower with higher guideline concordance. Independent of body mass index, blood pressure, total cholesterol, and fasting plasma glucose, better health behaviors (diet, physical activity, and alcohol consumption) were associated with lower mortality (2-sided P < 0.0001). Among individuals with ideal levels for 3-4 of these 4 cardiometabolic biomarkers, those with poor concordance with health behavior recommendations had higher mortality compared with those who had the highest concordance with these behavioral recommendations (adjusted mortality hazard ratio = 1.82, 95% confidence interval: 1.25, 2.67). Older adults who are concordant with recommendations for cancer and CVD prevention have reduced rates of chronic disease and mortality. Interventions to achieve and maintain healthy lifestyle behaviors may offer benefits both in the presence and absence of adverse traditional clinical risk factors. PMID- 29020209 TI - Demise of Polymerase Chain Reaction/Electrospray Ionization-Mass Spectrometry as an Infectious Diseases Diagnostic Tool. AB - Although there are several US Food and Drug Administration (FDA)-approved/cleared molecular microbiology diagnostics for direct analysis of patient samples, all are single target or panel-based tests. There is no FDA-approved/cleared diagnostic for broad microbial detection. Polymerase chain reaction (PCR)/electrospray ionization-mass spectrometry (PCR/ESI-MS), commercialized as the IRIDICA system (Abbott) and formerly PLEX-ID, had been under development for over a decade and had become CE-marked and commercially available in Europe in 2014. Capable of detecting a large number of microorganisms, it was under review at the FDA when, in April 2017, Abbott discontinued it. This turn of events represents not only the loss of a potential diagnostic tool for infectious diseases but may be a harbinger of similar situations with other emerging and expensive microbial diagnostics, especially genomic tests. PMID- 29020211 TI - Reply to MacFadden et al. PMID- 29020210 TI - Fecal Microbiota Transplantation for Recurrent Clostridium difficile Infection Reduces Recurrent Urinary Tract Infection Frequency. AB - Broad-spectrum antibiotics for recurrent multidrug-resistant urinary tract infections (UTIs) disrupt the gut microbiome and promote antibiotic resistance. Fecal microbiota transplantation led to resolution of recurrent Clostridium difficile, significantly decreased recurrent UTI frequency, and improved antibiotic susceptibility profile of UTI-causing organisms. PMID- 29020212 TI - Screening Veterans for Syphilis: Implementation of the Reverse Sequence Algorithm. AB - We evaluated the syphilis reverse sequence algorithm (RSA) in a Veteran Affairs facility, finding 5.5% reactive Treponema pallidum enzyme immunoassay (EIA) tests. In a subset of EIA+/VDRL-/TP-PA+ cases, 48% were previously treated. Of veterans with unknown/no prior therapy, only 45% had documentation of subsequent treatment, suggesting suboptimal interpretation of RSA results. PMID- 29020213 TI - Improvement in Diagnosis of Histoplasma Meningitis by Combined Testing for Histoplasma Antigen and Immunoglobulin G and Immunoglobulin M Anti-Histoplasma Antibody in Cerebrospinal Fluid. AB - Background: Central nervous system (CNS) histoplasmosis is a life-threatening condition and represents a diagnostic and therapeutic challenge. Isolation of Histoplasma capsulatum from cerebrospinal fluid (CSF) or brain tissue is diagnostic; however, culture is insensitive and slow growth may result in significant treatment delay. We performed a retrospective multicenter study to evaluate the sensitivity and specificity of a new anti-Histoplasma antibody enzyme immunoassay (EIA) for the detection of IgG and IgM antibody in the CSF for diagnosis of CNS histoplasmosis, the primary objective of the study. The secondary objective was to determine the effect of improvements in the Histoplasma galactomannan antigen detection EIA on the diagnosis of Histoplasma meningitis. Methods: Residual CSF specimens from patients with Histoplasma meningitis and controls were tested for Histoplasma antigen and anti-Histoplasma immunoglobulin G (IgG) and immunoglobulin M (IgM) antibody using assays developed at MiraVista Diagnostics. Results: A total of 50 cases and 157 controls were evaluated. Fifty percent of patients with CNS histoplasmosis were immunocompromised, 14% had other medical conditions, and 36% were healthy. Histoplasma antigen was detected in CSF in 78% of cases and the specificity was 97%. Anti-Histoplasma IgG or IgM antibody was detected in 82% of cases and the specificity was 93%. The sensitivity of detection of antibody by currently available serologic testing including immunodiffusion and complement fixation was 51% and the specificity was 96%. Testing for both CSF antigen and antibody by EIA was the most sensitive approach, detecting 98% of cases. Conclusions: Testing CSF for anti-Histoplasma IgG and IgM antibody complements antigen detection and improves the sensitivity for diagnosis of Histoplasma meningitis. PMID- 29020214 TI - How Well Do Neurologic Symptoms Identify Individuals With Neurosyphilis? AB - Background: Current guidelines recommend lumbar puncture (LP) in patients with syphilis who have neurologic symptoms. Methods: A total of 81 human immunodeficiency virus (HIV)-uninfected individuals and 385 HIV-infected individuals enrolled in a study of cerebrospinal fluid (CSF) abnormalities in syphilis underwent LP and a structured symptom history, including assessment of headache; stiff neck; photophobia; ocular inflammation; vision, hearing, or sensory loss; or gait incoordination. Neurosyphilis was defined as a reactive CSF Venereal Disease Research Laboratory (VDRL) test. Association between categorical variables was assessed using chi2, Fisher exact test, or logistic regression. Association between continuous and categorical variables was assessed using Mann Whitney U test. Results: CSF-VDRL was reactive in 20 (24.7%) HIV-uninfected and 68 (17.7%) HIV-infected (P = .14) individuals. No symptom was more common in HIV uninfected individuals with neurosyphilis. Among the HIV-infected, the odds of a reactive CSF-VDRL were higher in those with mild or greater severity photophobia (2.0 [95% confidence interval [CI], 1.1-3.8]; P = .03), vision loss (2.3 [1.3 4.1]; P = .003), or gait incoordination (2.4 [1.3-4.4]; P = .006); or moderate or greater severity hearing loss (3.1 [1.3-7.5]; P = .01). Diagnostic specificity of these 4 symptoms for neurosyphilis was high when limited to moderate or greater severity (91.6%-100%); however, the diagnostic sensitivity was low (1.5%-38.1%). Conclusions: Among HIV-infected patients with syphilis, 4 specific neurologic symptoms are more common in those with a reactive CSF-VDRL. Lack of symptoms does not guarantee that the CSF-VDRL is nonreactive, regardless of HIV status. PMID- 29020215 TI - Long-term Use of Proton Pump Inhibitors Is Associated With Increased Microbial Product Translocation, Innate Immune Activation, and Reduced Immunologic Recovery in Patients With Chronic Human Immunodeficiency Virus-1 Infection. AB - Background: Translocation of microbial products from the damaged gut causes increased immune activation in human immunodeficiency virus (HIV). Proton pump inhibitors (PPIs) predispose to bacterial overgrowth in the gut. We hypothesized that long-term use of PPIs is associated with greater microbial translocation and immune activation in HIV. Methods: HIV-infected persons on suppressive antiretroviral therapy (ART), including those receiving long-term PPIs (PPI+ group) or not (PPI- group), were enrolled. We determined CD38+HLA-DR+CD8+ (activated) T-cell frequency, and plasma levels of lipopolysaccharide (LPS), LPS binding protein (LBP), soluble CD14 (sCD14), and intestinal fatty acid binding protein (I-FABP). Results: We recruited 77 HIV-infected participants (37 PPI+ and 40 PPI-) and 20 HIV-uninfected volunteers. PPI+ subjects were older and more likely to have hypertension and receive statins than PPI-. Nadir and enrollment CD4 counts, activated T-cells, and time on ART were similar in both groups. PPI+ group had higher sCD14 (2.15 vs. 1.50 mcg/mL, P < .01), and LBP (21.78 vs. 18.28 mcg/mL, P = .02) but lower I-FABP levels (608.5 vs. 2281.7 pg/mL, P = .05) than PPI-. In multivariate analysis, sCD14 levels remained associated with PPIs. In the year prior to enrollment, PPI+ group lost more CD4 cells than PPI- (-18 vs. 54 cells/mm3, P = .03). HIV-infected subjects had higher immune activation and microbial translocation biomarkers than uninfected volunteers. Conclusion: In HIV, long-term use of PPIs was associated with increased microbial translocation, innate immune activation, and reduced immune reconstitution. Further studies are needed to evaluate the clinical implications of our findings. In the meantime, cautious use of PPIs is advised. PMID- 29020216 TI - Outpatient Management of Children With World Health Organization Chest Indrawing Pneumonia: Implementation Risks and Proposed Solutions. AB - This Viewpoints article details our recommendation for the World Health Organization Integrated Management of Childhood Illness guidelines to consider additional referral or daily monitoring criteria for children with chest indrawing pneumonia in low-resource settings. We review chest indrawing physiology in children and relate this to the risk of adverse pneumonia outcomes. We believe there is sufficient evidence to support referring or daily monitoring of children with chest indrawing pneumonia and signs of severe respiratory distress, oxygen saturation <93% (when not at high altitude), moderate malnutrition, or an unknown human immunodeficiency virus (HIV) status in an HIV endemic setting. Pulse oximetry screening should be routine and performed at the earliest point in the patient care pathway as possible. If outpatient clinics lack capacity to conduct pulse oximetry, nutritional assessment, or HIV testing, then we recommend considering referral to complete the evaluation. When referral is not possible, careful daily monitoring should be performed. PMID- 29020217 TI - Long-term Clinical Outcomes in Visceral Leishmaniasis/Human Immunodeficiency Virus-Coinfected Patients During and After Pentamidine Secondary Prophylaxis in Ethiopia: A Single-Arm Clinical Trial. AB - Background: We have conducted a single-arm trial evaluating monthly pentamidine secondary prophylaxis (PSP) to prevent visceral leishmaniasis (VL) relapse in Ethiopian human immunodeficiency virus-infected patients. Outcomes at 12 months of PSP have been previously reported, supporting PSP effectiveness and safety. However, remaining relapse-free after PSP discontinuation is vital. We now report outcomes and associated factors for a period of up to 2.5 years after initiating PSP, including 1-year follow-up after PSP discontinuation. Methods: The trial had 3 phases: (1) 12 months of PSP; (2) a 6-month PSP extension period if CD4 count was <=200 cells/MUL at month 12; and (3) 12-month follow-up after stopping PSP. The probability of relapse and risk factors were calculated using Kaplan-Meier methods and Cox regression analysis. Results: For the 74 patients included, final study outcomes were as follows: 39 (53%) relapse-free, 20 (27%) relapsed, 5 (7%) deaths, 10 (14%) lost to follow-up. The 2-year risk of relapse was 36.9% (95% confidence interval, 23.4%-55.0%) and was highest for those with a history of VL relapse and low baseline CD4 count. Forty-five patients were relapse-free and in follow-up at month 12 of PSP. This included 28 patients with month 12 CD4 counts >200 cells/uL, remaining relapse-free after PSP discontinuation. Among the 17 with month 12 CD4 count <200 cells/uL, 1 relapsed and 3 were lost during the PSP extension period. During 1-year post-PSP follow-up, 2 patients relapsed and 1 was lost to follow-up. No PSP-related serious adverse events were reported during the PSP-extension/post-PSP follow-up period. Conclusions: It seems safe to discontinue PSP at month 12 CD4 counts of >200 cells/uL. The management of those failing to reach this level remains to be defined. Clinical Trials Registration: NCT01360762. PMID- 29020218 TI - Pan-serotype Reduction in Progression of Streptococcus pneumoniae to Otitis Media After Rollout of Pneumococcal Conjugate Vaccines. AB - Background: Reductions in otitis media (OM) burden following rollout of pneumococcal conjugate vaccines (PCVs) have exceeded predictions of vaccine impact. In settings with active surveillance, reductions in OM caused by vaccine targeted pneumococcal serotypes have co-occurred with reductions in OM caused by other pathogens carried in the upper-respiratory tract of children. To understand these changes, we investigated the progression of vaccine-targeted and non vaccine pneumococcal serotypes from carriage to OM before and after vaccine rollout. Methods: Nasopharyngeal carriage prevalence of pneumococcus was monitored in prospective studies of Bedouin and Jewish children <3 years old in southern Israel between 2004 and 2016. Incidence of OM necessitating middle-ear fluid culture (predominantly complex OM including recurrent, spontaneously draining, non-responsive, and chronic cases) was monitored via prospective, population-based active surveillance. We estimated rates of pneumococcal serotype specific progression from carriage to disease before and after rollout of PCV7/13, measured as OM incidence per carrier. We pooled serotype-specific estimates using Bayesian random-effects models. Results: On average, rates of progression declined 92% (95% credible interval: 79-97%) and 80% (46-93%) for PCV7/13 serotypes among Bedouin and Jewish children <12 months old, respectively, and 32% (-58-71%) and 61% (-5-86%) among children aged 12-35m. For non-vaccine serotypes, rates of progression among Bedouin and Jewish children aged <12m declined 74% (55-85%) and 43% (4-68%), respectively. Conclusions: Vaccine targeted and non-vaccine pneumococcal serotypes showed lower rates of progression to complex OM after rollout of PCV7/13. Early-life OM episodes historically associated with vaccine-serotype pneumococci may impact the susceptibility of children to OM progression. PMID- 29020219 TI - Epidemiology and Antimicrobial Resistance Characteristics of the Sequence Type 131-H30 Subclone Among Extraintestinal Escherichia coli Collected From US Children. AB - Background: Escherichia coli sequence type (ST) 131-H30 is a globally important pathogen implicated in rising rates of multidrug resistance among E. coli causing extraintestinal infections. Previous studies have focused on adults, leaving the epidemiology of H30 among children undefined. Methods: We used clinical data and isolates from a case-control study of extended-spectrum cephalosporin-resistant E. coli conducted at 4 US children's hospitals to estimate the burden and identify host correlates of infection with H30. H30 isolates were identified using 2-locus genotyping; host correlates were examined using log-binomial regression models stratified by extended-spectrum cephalosporin resistance status. Results: A total of 339 extended-spectrum cephalosporin-resistant and 1008 extended-spectrum cephalosporin-susceptible E. coli isolates were available for analyses. The estimated period prevalence of H30 was 5.3% among all extraintestinal E. coli isolates (95% confidence interval [CI], 4.6%-7.1%); H30 made up 43.3% (81/187) of extended-spectrum beta-lactamase (ESBL)-producing isolates in this study. Host correlates of infection with H30 differed by extended-spectrum cephalosporin resistance status: Among resistant isolates, age <=5 years was positively associated with H30 infection (relative risk [RR], 1.83 [95% CI, 1.19-2.83]); among susceptible isolates, age <=5 years was negatively associated with H30 (RR, 0.48 [95% CI, .27-.87]), while presence of an underlying medical condition was positively associated (RR, 4.49 [95% CI, 2.43-8.31]). Conclusions: ST131-H30 is less common among extraintestinal E. coli collected from children compared to reported estimates among adults, possibly reflecting infrequent fluoroquinolone use in pediatrics; however, it is similarly dominant among ESBL-producing isolates. The H30 subclone appears to disproportionately affect young children relative to other extended-spectrum cephalosporin-resistant E. coli. PMID- 29020220 TI - Role of Secondary Prophylaxis With Valganciclovir in the Prevention of Recurrent Cytomegalovirus Disease in Solid Organ Transplant Recipients. AB - Background: Cytomegalovirus (CMV) is a major contributor to morbidity and mortality in solid organ transplant recipients (SOTRs). Ganciclovir and valganciclovir are highly effective antiviral drugs with a well-established role in primary prophylaxis and treatment of CMV disease. Our objective in this study was to examine the effect of secondary prophylaxis (SP) on the risk of relapse in SOTRs following an episode of CMV disease. Methods: We performed a retrospective cohort study of SOTRs from 1995 to 2015 and used propensity score-based inverse probability of treatment weighting methodology to control for confounding by indication. A weighted Cox model was created to determine the effect of SP on time to relapse within 1 year of treatment completion. Results: Fifty-two heart, 34 liver, 79 kidney, and 5 liver-kidney transplant recipients who completed treatment for an episode of CMV infection/disease were included. A total of 120 (70.6%) received SP (median duration, 61 days; range, 5-365) and 39 (23%) relapsed. SP was protective against relapse from 0 to 6 weeks following treatment completion (hazard ratio [HR], 0.19; 95% confidence interval [CI], 0.05-0.69). However, after 6 weeks, risk of relapse did not significantly differ between the 2 groups (HR, 1.18; 95% CI, 0.46-2.99). Conclusions: Our findings demonstrate that use of SP following treatment of CMV disease did not confer long-term protection against relapse, although it did delay relapse while patients were receiving antivirals. This suggests that SP has limited clinical utility in the overall prevention of recurrent CMV disease. PMID- 29020223 TI - Let's Make a Deal: Shortening the Solid Organ Transplant Waiting Time in Exchange for Transmitting and Treating Hepatitis C Infection in the Era of Safe and Effective Directly Acting Antivirals. PMID- 29020222 TI - Antimicrobial Resistance Gene Acquisition and Depletion Following Fecal Microbiota Transplantation for Recurrent Clostridium difficile Infection. AB - Fecal microbiota transplantation (FMT) may be a novel approach to eliminate multidrug-resistant bacteria from the gut and to prevent future infections. Using whole metagenome sequencing data from 8 FMT donor-recipient pairs, we identified 37 and 95 antimicrobial resistance genes that were acquired by or removed from FMT recipients, respectively. PMID- 29020221 TI - Systemic Inflammatory Response to Malaria During Pregnancy Is Associated With Pregnancy Loss and Preterm Delivery. AB - Background: Pregnancy malaria (PM) is associated with a proinflammatory immune response characterized by increased levels of cytokines and chemokines such as tumor necrosis factor-alpha, interferon-gamma, interleukin 10 (IL-10), and CXCL9. These changes are associated with poor outcomes including low birthweight delivery and maternal anemia. However, it is unknown if inflammatory pathways during malaria are related to pregnancy loss and preterm delivery (PTD). Methods: Cytokine and chemokine levels were measured in maternal peripheral blood at enrollment, gestational week 30-32, and delivery, and in placental blood, of 638 women during a longitudinal cohort study in Ouelessebougou, Mali. Plasmodium falciparum infection was assessed by blood smear microscopy at all visits. Results: PM was associated with increased levels of cytokines and chemokines including IL-10 and CXCL9. In a competing risks model adjusted for known covariates, high CXCL9 levels measured in the peripheral blood during pregnancy were associated with increased risk of pregnancy loss and PTD. At delivery, high IL-10 levels in maternal blood were associated with an increase in pregnancy loss, and increased IL-1beta levels in placental blood were associated with pregnancy loss and PTD. Conclusions: PM is associated with increased proinflammatory cytokine and chemokine levels in placental and maternal peripheral blood. Systemic inflammatory responses to malaria during pregnancy predict increased risk of pregnancy loss and PTD. Clinical Trials Registration: NCT01168271. PMID- 29020224 TI - Approach to the Investigation and Management of Patients With Candida auris, an Emerging Multidrug-Resistant Yeast. AB - Candida auris is an emerging, multidrug-resistant yeast that can spread in healthcare settings. It can cause invasive infections with high mortality and is difficult to identify using traditional yeast identification methods. Candida auris has been reported in more than a dozen countries, and as of August 2017, 112 clinical cases have been reported in the United States. Candida auris can colonize skin and persist in the healthcare environment, allowing for transmission between patients. Prompt investigation and aggressive interventions, including notification to public health agencies, implementation of contact precautions, thorough environmental cleaning and disinfection, infection control assessments, contact tracing and screening of contacts to assess for colonization, and retrospective review of microbiology records and prospective surveillance for cases at laboratories are all needed to limit the spread of C. auris. This review summarizes the current recommended approach to manage cases and control transmission of C. auris in healthcare facilities. PMID- 29020225 TI - Fecal Microbiota Transplantation and Urinary Tract Infection: An Interesting Approach. PMID- 29020228 TI - The Impact of a Carbapenem-Resistant Enterobacteriaceae Outbreak on Facilitating Development of a National Infrastructure for Infection Control in Israel. AB - In 2006 the Israeli healthcare system faced an unprecedented outbreak of carbapenem-resistant Enterobacteriaceae, primarily involving KPC-producing Klebsiella pneumoniae clonal complex CC258. This public health crisis exposed major gaps in infection control. In response, Israel established a national infection control infrastructure. The steps taken to build this infrastructure and benefits realized from its creation are described here. PMID- 29020229 TI - Please, No More Gastric Aspirate to Diagnose Pulmonary Tuberculosis in Children. PMID- 29020227 TI - Rapid Detection of Powassan Virus in a Patient With Encephalitis by Metagenomic Sequencing. AB - We describe a patient with severe and progressive encephalitis of unknown etiology. We performed rapid metagenomic sequencing from cerebrospinal fluid and identified Powassan virus, an emerging tick-borne flavivirus that has been increasingly detected in the United States. PMID- 29020226 TI - Innate, T-, and B-Cell Responses in Acute Human Zika Patients. AB - Background: There is an urgent need for studies of viral persistence and immunity during human Zika infections to inform planning and conduct of vaccine clinical trials. Methods: In 5 returned US travelers with acute symptomatic Zika infection, clinical features, viral RNA levels, and immune responses were characterized. Results: Two pregnant, flavivirus-experienced patients had viral RNA persist in plasma for >44 and >26 days. Three days after symptom onset, transient increases in proinflammatory monocytes began followed at 5 days by transient decreases in myeloid dendritic cells. Anti-Zika virus immunoglobulin M was detected at day 7 after symptom onset, persisted beyond 103 days, and remained equivocal through day 172. Zika virus-specific plasmablasts and neutralizing antibodies developed quickly; dengue virus-specific plasmablasts and neutralizing antibodies at high titers developed only in flavivirus-experienced patients. Zika virus- and dengue virus-specific memory B cells developed in both flavivirus-naive and -experienced patients. CD4+ T cells were moderately activated and produced antiviral cytokines after stimulation with Zika virus C, prM, E, and NS5 peptides in 4/4 patients. In contrast, CD8+ T cells were massively activated, but virus-specific cells that produced cytokines were present in only 2/4 patients assessed. Conclusions: Acute infections with Zika virus modulated antigen-presenting cell populations early. Flavivirus-experienced patients quickly recalled cross-reactive MBCs to secrete antibodies. Dengue virus naive patients made little dengue-specific antibody but developed MBCs that cross reacted against dengue virus. Zika virus-specific functional CD4+ T cells were readily detected, but few CD8+ T cells specific for the tested peptides were found. PMID- 29020231 TI - Evidence of Sexually Transmitted Disease Testing Outside of Primary Human Immunodeficiency Virus Care for People Living With Human Immunodeficiency Virus in San Francisco, California. PMID- 29020230 TI - Effect of Maternally Derived Anti-protein and Anticapsular IgG Antibodies on the Rate of Acquisition of Nasopharyngeal Carriage of Pneumococcus in Newborns. AB - Background: In developing countries, introduction of pneumococcal conjugate vaccine has not eliminated circulation of vaccine serotypes. Vaccinating pregnant mothers to increase antibody concentrations in their newborn infants may reduce the acquisition of pneumococcal carriage and subsequent risk of disease. We explored the efficacy of passive immunity, attributable to anti-protein and anticapsular pneumococcal antibodies, against acquisition of carriage. Methods: We examined the rate of nasopharyngeal acquisition of pneumococci in the first 90 days of life associated with varying anticapsular and anti-protein antibody concentrations in infant cord/maternal venous blood in Kilifi, Kenya. We used multivariable Cox proportional hazard models to estimate continuous functions relating acquisition of nasopharyngeal carriage to the concentration of maternally derived antibody. Results: Cord blood or maternal venous samples were collected from 976 mother-infant pairs. Pneumococci were acquired 561 times during 33,905 person-days of follow-up. Increasing concentrations of anti-protein antibodies were associated with either a reduction (PhtD1, PspAFam2, Spr0096, StkP) or, paradoxically, an increase (CbpA, LytC, PcpA, PiaA, PspAFam1, RrgBT4) in acquisition rate. We observed a nonsignificant reduction in the incidence of homologous carriage acquisition with high concentrations of maternally derived anticapsular antibodies to 5 serotypes (6A, 6B, 14, 19F, and 23F). Conclusion: The protective efficacy of several anti-protein antibodies supports the strategy of maternal vaccination to protect young infants from carriage and invasive disease. We were not able to demonstrate that passive anticapsular antibodies were protective against carriage acquisition at naturally occurring concentrations though it remains possible they may do so at the higher concentrations elicited by vaccination. PMID- 29020233 TI - Effectiveness of Intramuscular Immunoglobulin in Unvaccinated Family Members After Household Measles Exposure. PMID- 29020234 TI - Should the Aminoglycoside beta-Lactam Combination Be Abandoned in All Severely Ill Patients With Presumed Gram-Negative Infection? PMID- 29020235 TI - Redefining Human Immunodeficiency Virus (HIV) Preexposure Prophylaxis Failures. PMID- 29020236 TI - Signalling the risk of sudden cardiac death: the ECG and beyond. PMID- 29020232 TI - Staging classification of aortic stenosis based on the extent of cardiac damage. AB - Aims: In patients with aortic stenosis (AS), risk stratification for aortic valve replacement (AVR) relies mainly on valve-related factors, symptoms and co morbidities. We sought to evaluate the prognostic impact of a newly-defined staging classification characterizing the extent of extravalvular (extra-aortic valve) cardiac damage among patients with severe AS undergoing AVR. Methods and results: Patients with severe AS from the PARTNER 2 trials were pooled and classified according to the presence or absence of cardiac damage as detected by echocardiography prior to AVR: no extravalvular cardiac damage (Stage 0), left ventricular damage (Stage 1), left atrial or mitral valve damage (Stage 2), pulmonary vasculature or tricuspid valve damage (Stage 3), or right ventricular damage (Stage 4). One-year outcomes were compared using Kaplan-Meier techniques and multivariable Cox proportional hazards models were used to identify 1-year predictors of mortality. In 1661 patients with sufficient echocardiographic data to allow staging, 47 (2.8%) patients were classified as Stage 0, 212 (12.8%) as Stage 1, 844 (50.8%) as Stage 2, 413 (24.9%) as Stage 3, and 145 (8.7%) as Stage 4. One-year mortality was 4.4% in Stage 0, 9.2% in Stage 1, 14.4% in Stage 2, 21.3% in Stage 3, and 24.5% in Stage 4 (Ptrend < 0.0001). The extent of cardiac damage was independently associated with increased mortality after AVR (HR 1.46 per each increment in stage, 95% confidence interval 1.27-1.67, P < 0.0001). Conclusion: This newly described staging classification objectively characterizes the extent of cardiac damage associated with AS and has important prognostic implications for clinical outcomes after AVR. PMID- 29020237 TI - Human Immunodeficiency Virus-Associated Chronic Lung Disease in Children and Adolescents in Zimbabwe: Chest Radiographic and High-Resolution Computed Tomographic Findings. AB - Background: Chronic respiratory symptoms are common among children living with human immunodeficiency virus (HIV). We investigated the radiological features of chronic lung disease in children aged 6-16 years receiving antiretroviral therapy for >=6 months in Harare, Zimbabwe. Methods: Consecutive participants from a HIV clinic underwent clinical assessment and chest radiography. Participants with an abnormal chest radiograph (assessed by a clinician) and/or those meeting a clinical case definition for chronic lung disease underwent high-resolution computed tomography (HRCT). Radiological studies were scored independently and blindly by 2 thoracic radiologists. Relationships between radiological abnormalities and lung function were examined. Results: Among 193 participants (46% female; median age, 11.2 years; interquartile range, 9.0-12.8 years), the median CD4 cell count was 720/uL (473-947/uL), and 79% had a human immunodeficiency virus (HIV) load of <400 copies/mL. The most common chest radiographic finding was ring/tramline opacities (55 of 193 participants; 29%). HRCT scans were evaluated in 84 participants (69%); decreased attenuation (present in 43%) was the dominant abnormality seen. The extent of decreased attenuation was strongly correlated with both the severity and extent of bronchiectasis (rs = 0.68 and P < .001 for both). The extent of decreased attenuation was also negatively correlated with forced expiratory volume in first second of expiration (rs = -0.52), forced vital capacity (rs = -0.42), and forced expiratory flow, midexpiratory phase (rs = -0.42) (P < .001 for all). Conclusions: The HRCT findings strongly suggest that obliterative bronchiolitis may be the major cause of chronic lung disease in our cohort. Further studies to understand the pathogenesis and natural history are urgently needed. PMID- 29020240 TI - Too Early to Recommend Early Fecal Microbiota Transplantation in Patients With Severe Clostridium difficile Infection, or Not Too Early? PMID- 29020238 TI - Acute Retinal Necrosis Caused by the Zoster Vaccine Virus. AB - We report acute retinal necrosis caused by the vaccine Oka strain following immunization of a 78-year-old woman with live zoster vaccine. Whole genome sequencing confirmed the ocular vOka strain to be derived from the vaccine and excluded the presence of new mutations or recombination with wild-type Varicella zoster virus. PMID- 29020242 TI - Successful transcatheter aortic valve-in-valve implantation in a patient having a chronic type A aortic dissection. PMID- 29020239 TI - Reproductive Aging and Hepatic Fibrosis Progression in Human Immunodeficiency Virus/Hepatitis C Virus-Coinfected Women. AB - Background: Severity of hepatic fibrosis is greater in postmenopausal than in premenopausal women, perhaps owing to protective effects of estrogens. However, prior studies of estrogen and liver fibrosis lack serial fibrosis measures, adjustment for age, or longitudinal observations in coinfected populations. Methods: In a longitudinal cohort of women coinfected with human immunodeficiency virus (HIV) and hepatitis C virus (HCV), we assessed fibrosis progression across reproductive age, using validated serum fibrosis markers, aminotransferase platelet ratio index (APRI) and fibrosis 4 (FIB-4). Fibrosis rate was evaluated within each woman as she transitioned from pre- to postmenopause, defined by a biomarker of ovarian function. Results: The median follow-up (n = 405) was 9.1 years (interquartile range, 5.0-15.2 years), with a median menopausal age of 49 years (47-52 years). When fully controlled for chronologic aging, the fibrosis progression rate was accelerated during perimenopause, as shown using FIB-4 (0.12 units per year faster than during premenopause; 95% confidence interval [CI], .02 .21; P = .01) and APRI (0.05 units per year faster; -.002 to .09; P = .06). Accelerated fibrosis was also observed during postmenopause compared with premenopause, for FIB-4 (0.14 units per year faster; 95% CI, -.01 to .29; P = .07) and APRI (0.07 units per year faster; -.003 to .15; P = .06). Accelerated fibrosis in perimenopause persisted after adjustment for Hispanic ethnicity, antiretroviral use, and alcohol (0.10 FIB-4 units per year faster than during premenopause; 95% CI, .008-.20; P = .03). Conclusions: In HIV/HCV-coinfected women, hepatic fibrosis accelerates with reproductive aging. Accelerated fibrosis begins in perimenopause, highlighting a previously unrecognized group of women at increased risk for advanced fibrosis and associated complications. Longitudinal analyses of fibrosis rates across reproductive age should be conducted in non-HCV related liver diseases, given potential implications in a broader spectrum of women. PMID- 29020241 TI - Infections, atherosclerosis, and coronary heart disease. AB - Atherosclerosis is a chronic inflammatory disease. Pathophysiological similarities between chronic infections and atherosclerosis triggered interest in a clinical association between these conditions. Various infectious microbes have been linked to atherosclerotic vascular disease in epidemiological studies. However, this association failed to satisfy the Koch's postulates of causation with multiple clinical trials demonstrating inefficacy of anti-infective therapies in mitigating atherosclerotic cardiovascular events. Identification of underlying pathophysiological mechanisms and experience with vaccination against various infectious agents has ushered a new avenue of efforts in the development of an anti-atherosclerotic vaccine. Studies in animal models have identified various innate and adaptive immune pathways in atherosclerosis. In this review, we discuss the patho-biological link between chronic infections and atherosclerosis, evaluate existing evidence of animal and human trials on the association between infections and cardiovascular disease and introduce the concept of an anti-atherosclerotic vaccine. PMID- 29020243 TI - Linking the sympathetic nervous system to the inflammasome: towards new therapeutics for atherosclerotic cardiovascular disease. PMID- 29020244 TI - Impact of total occlusion of culprit artery in acute non-ST elevation myocardial infarction: a systematic review and meta-analysis. AB - Aims: Total occlusion (TO) of the culprit artery usually presents with ST elevation myocardial infarction. A subset of patients with TO present as non-ST segment elevation myocardial infarction (NSTEMI) without classic ST-elevation on the electrocardiogram. This may lead to delay in identification of these patients and further management. We performed a meta-analysis to estimate the difference in outcomes between totally occluded and non-occluded culprit arteries in patients with NSTEMI. Methods and results: Our literature search yielded seven studies with 40 777 patients. The outcomes assessed were clinical presentation (Killip class), left ventricular ejection fraction, time to angiography, major cardiac adverse events (MACE) and all-cause mortality. The generic inverse or Mantel-Haenszel method was used to pool relevant outcomes and the mean difference (MD) or relative risk (RR) was calculated. A total of 10 415 (25.5%) patients had an occluded culprit artery with a predominant infero-lateral distribution (40% right coronary and 33% left circumflex artery). There was an increased risk of both MACE (short-term RR: 1.41; CI: 1.17, 1.70; P = 0.0003; I2 = 26%; medium- to long-term RR: 1.32; CI: 1.11, 1.56; P = 0.001; I2 = 25%) and all-cause mortality (short-term RR: 1.67; CI: 1.31, 2.13; P < 0.0001; I2 = 41%; medium to long-term RR: 1.42; CI: 1.08, 1.86; P = 0.01; I2 = 32%) with TO of the culprit artery. Conclusion: Our meta-analysis suggests that patients with NSTEMI who demonstrate a totally occluded culprit vessel on coronary angiography are at higher risk of mortality and major adverse cardiac events. Better risk stratification tools are needed to identify such high-risk acute coronary syndrome patients to facilitate earlier revascularization and potentially to improve outcomes. PMID- 29020246 TI - Addressing the Unknowns of Antimicrobial Resistance: Quantifying and Mapping the Drivers of Burden. AB - The global threat of antimicrobial resistance (AMR) has arisen through a network of complex interacting factors. Many different sources and transmission pathways contribute to the ever-growing burden of AMR in our clinical settings. The lack of data on these mechanisms and the relative importance of different factors causing the emergence and spread of AMR hampers our global efforts to effectively manage the risks. Importantly, we have little quantitative knowledge on the relative contributions of these sources and are likely to be targeting our interventions suboptimally as a result. Here we propose a systems mapping approach to address the urgent need for reliable and timely data to strengthen the response to AMR. PMID- 29020245 TI - Guillain-Barre Syndrome Associated With Zika Virus Infection in Martinique in 2016: A Prospective Study. AB - Background: Guillain-Barre syndrome (GBS) has been reported to be associated with Zika virus (ZIKV) infection in case reports and retrospective studies, mostly on the basis of serological tests, with the problematic cross-reacting antibodies of the Flavivirus genus. Some GBS cases do not exhibit a high level of diagnostic certainty. This prospective study aimed to describe the clinical profiles and the frequency of GBS associated with ZIKV during the ZIKV outbreak in Martinique in 2016. Methods: We recorded prospective data from GBS meeting levels 1 or 2 of diagnostic certainty for the Brighton Collaboration, with proof of recent ZIKV infection and negative screening for etiologies of GBS. Results: Of the sample of 34 patients with suspected GBS during the outbreak, 30 had a proven presence of GBS, and 23 had a recent ZIKV infection. The estimated GBS incidence rate ratio (2016 vs 2006-2015) was 4.52 (95% confidence interval, 2.80-7.64; P = .0001). Recent ZIKV infection was confirmed by urine reverse-transcription polymerase chain reaction (RT-PCR) analysis in 17 cases and by serology in 6 cases. Patients, 65% of whom were male, had a median age of 61 years (interquartile range, 56-71 years) and experienced severe GBS. Electrophysiological tests were consistent with the primary demyelinating form of the disease. Conclusions: ZIKV infection is usually benign, when symptomatic, but in countries at risk of ZIKV epidemics, adequate intensive care bed capacity is required for management of severe GBS cases. Arbovirus RNA detection by RT-PCR should be part of the management of GBS cases. PMID- 29020248 TI - Relationship between microvascular obstruction and adverse events following primary percutaneous coronary intervention for ST-segment elevation myocardial infarction: an individual patient data pooled analysis from seven randomized trials. AB - Aims: Microvascular obstruction (MVO) is the underlying cause for the no-reflow phenomenon in ST-segment elevation myocardial infarction (STEMI). The association between MVO assessed by cardiac magnetic resonance imaging (CMR) and prognosis has not been convincingly demonstrated. We sought to determine the relationship between MVO assessed early after primary percutaneous coronary intervention (PCI) in STEMI and all-cause mortality, hospitalization for heart failure (HF), and reinfarction. Methods and results: We performed a pooled analysis using individual patient data from seven randomized primary PCI trials in which MVO was assessed within 7 days after reperfusion by CMR using late gadolinium enhancement imaging (n = 1688). Clinical follow-up was performed for at least 6 months after the index event. Median time to CMR after STEMI was 3 days [interquartile range (IQR) 2-4], and median duration of clinical follow-up was 365 days (IQR 188-374). Microvascular obstruction was present in 960 (56.9%) of patients, and median MVO (percent left ventricular myocardial mass) was 0.47% (IQR 0.00-2.54). A graded response was present between the extent of MVO (per 1.0% absolute increase) and subsequent mortality [Cox adjusted hazard ratio (HR) 1.14, 95% confidence interval (CI) 1.09-1.19, P < 0.0001] and hospitalization for HF (Cox adjusted HR 1.08, 95% CI 1.05-1.12, P < 0.0001). Microvascular obstruction remained significantly associated with all-cause mortality even after further adjustment for infarct size (Cox adjusted HR 1.09, 95% CI 1.01-1.17, P = 0.03). MVO was not significantly related to subsequent reinfarction (P = 0.29). Conclusions: The presence and extent of MVO measured by CMR after primary PCI in STEMI are strongly associated with mortality and hospitalization for HF within 1 year. PMID- 29020249 TI - Increasing Evidence of the Nephrotoxicity of Piperacillin/Tazobactam and Vancomycin Combination Therapy-What Is the Clinician to Do? AB - Early administration of appropriate empiric antibiotics is essential for achieving the best possible outcomes in sepsis. Yet the choice of antibiotic therapy has become more challenging due to recent reports of nephrotoxicity with the combination of vancomycin and piperacillin/tazobactam, the "workhorse" regimen at many institutions. In this article we assess the evidence for nephrotoxicity and its possible mechanisms, provide recommendations for risk mitigation, address the advantages and disadvantages of alternative antibiotic choices, and suggest areas for future research. PMID- 29020247 TI - Assessment of Efficacy and Safety of Arterolane Maleate-Piperaquine Phosphate Dispersible Tablets in Comparison With Artemether-Lumefantrine Dispersible Tablets in Pediatric Patients With Acute Uncomplicated Plasmodium falciparum Malaria: A Phase 3, Randomized, Multicenter Trial in India and Africa. AB - Background: Administration of artemisinin-based combination therapy (ACT) to infant and young children can be challenging. A formulation with accurate dose and ease of administration will improve adherence and compliance in children. The fixed-dose combination dispersible tablet of arterolane maleate (AM) 37.5 mg and piperaquine phosphate (PQP) 187.5 mg can make dosing convenient in children. Methods: This multicenter (India and Africa), comparative, parallel-group trial enrolled 859 patients aged 6 months to 12 years with Plasmodium falciparum malaria. Patients were randomized in a ratio of 2:1 to AM-PQP (571 patients) once daily and artemether-lumefantrine (AL) (288 patients) twice daily for 3 days and followed for 42 days. Results: The cure rate (ie, polymerase chain reaction corrected adequate clinical and parasitological response) in the per-protocol population at day 28 was 100.0% and 98.5% (difference, 1.48% [95% confidence interval {CI}, .04%-2.91%]) in the AM-PQP and AL arms, respectively, and 96.0% and 95.8% (difference, 0.14% [95% CI, -2.68% to 2.95%]) in the intention-to-treat (ITT) population. The cure rate was comparable at day 42 in the ITT population (AM-PQP, 94.4% vs AL, 93.1%). The median parasite clearance time was 24 hours in both the arms. The median fever clearance time was 6 hours in AM-PQP and 12 hours in the AL arm. Both the treatments were found to be safe and well tolerated. Overall, safety profile of both the treatments was similar. Conclusions: The efficacy and safety of fixed-dose combination of AM and PQP was comparable to AL for the treatment of uncomplicated P. falciparum malaria in pediatric patients. Clinical Trials Registration: CTRI/2014/07/004764. PMID- 29020252 TI - Short-term Peripheral Venous Catheter-Related Bloodstream Infections: A Systematic Review. AB - Short-term peripheral venous catheters (PVCs) are commonly used in healthcare settings. To determine the magnitude of bloodstream infections (BSIs) related to their use, PubMed, article bibliographies, and the authors' library were searched for pertinent articles. The incidence of PVC-related BSIs was 0.18% among 85063 PVCs. Short-term PVCs accounted for a mean of 6.3% and 23% of nosocomial BSIs and nosocomial catheter-related BSIs, respectively. Prolonged dwell time and catheter insertion under emergent conditions increased risk of PVC-related bloodstream infection (PVCR-BSI). If approximately 200 million PVCs are successfully inserted into adult patients each year in the United States, there may be many PVCR-BSIs occurring yearly. Clinicians should obtain blood cultures in patients with evidence of PVC infection and systemic symptomatology such as fever, carefully inspect the PVC insertion site in bacteremic or fungemic patients, and remove PVCs associated with localized infection with or without associated BSI. PMID- 29020253 TI - Aneurysmal left sinus of Valsalva in Marfan's syndrome. PMID- 29020251 TI - Differential blood pressure effects of ibuprofen, naproxen, and celecoxib in patients with arthritis: the PRECISION-ABPM (Prospective Randomized Evaluation of Celecoxib Integrated Safety Versus Ibuprofen or Naproxen Ambulatory Blood Pressure Measurement) Trial. AB - Aims: Non-steroidal anti-inflammatory drugs (NSAIDs), both non-selective and selective cyclooxygenase-2 (COX-2) inhibitors, are among the most widely prescribed drugs worldwide, but associate with increased blood pressure (BP) and adverse cardiovascular (CV) events. PRECISION-ABPM, a substudy of PRECISION was conducted at 60 sites, to determine BP effects of the selective COX-2 inhibitor celecoxib vs. the non-selective NSAIDs naproxen and ibuprofen. Methods and results: In this double-blind, randomized, multicentre non-inferiority CV-safety trial, 444 patients (mean age 62 +/- 10 years, 54% female) with osteoarthritis (92%) or rheumatoid arthritis (8%) and evidence of or at increased risk for coronary artery disease received celecoxib (100-200 mg bid), ibuprofen (600-800 mg tid), or naproxen (375-500 mg bid) with matching placebos in a 1: 1: 1 allocation, to assess the effect on 24-h ambulatory BP after 4 months. The change in mean 24-h systolic BP (SBP) in celecoxib, ibuprofen and naproxen-treated patients was -0.3 mmHg [95% confidence interval (CI), -2.25, 1.74], 3.7 (95% CI, 1.72, 5.58) and 1.6 mmHg (95% CI, -0.40, 3.57), respectively. These changes resulted in a difference of - 3.9 mmHg (P = 0.0009) between celecoxib and ibuprofen, of - 1.8 mmHg (P = 0.12) between celecoxib and naproxen, and of - 2.1 mmHg (P = 0.08) between naproxen and ibuprofen. The percentage of patients with normal baseline BP who developed hypertension (mean 24-h SBP >= 130 and/or diastolic BP >= 80 mmHg) was 23.2% for ibuprofen, 19.0% for naproxen, and 10.3% for celecoxib (odds ratio 0.39, P = 0.004 and odds ratio 0.49, P = 0.03 vs. ibuprofen and naproxen, respectively). Conclusions: In PRECISION-ABPM, allocation to the non-selective NSAID ibuprofen, compared with the COX-2 selective inhibitor celecoxib was associated with a significant increase of SBP, and a higher incidence of new-onset hypertension. ClinicalTrials: gov number NCT00346216. PMID- 29020255 TI - Mini-Fecal Microbiota Transplantation for Treatment of Clostridium difficile Proctitis Following Total Colectomy. AB - Rarely, in fulminant Clostridium difficile infection (CDI), the rectal stump is persistently infected following total abdominal colectomy. We report cure of a septic patient with proctitis by fecal microbiota transplant via rectal swabs (mini-FMT). This novel procedure offers a management option for recurrent CDI following total abdominal colectomy. PMID- 29020254 TI - Statistical Analysis of Multiple Phenotypes in Genetic Epidemiologic Studies: From Cross-Phenotype Associations to Pleiotropy. AB - In the context of genetics, pleiotropy refers to the phenomenon in which a single genetic locus affects more than 1 trait or disease. Genetic epidemiologic studies have identified loci associated with multiple phenotypes, and these cross phenotype associations are often incorrectly interpreted as examples of pleiotropy. Pleiotropy is only one possible explanation for cross-phenotype associations. Cross-phenotype associations may also arise due to issues related to study design, confounder bias, or nongenetic causal links between the phenotypes under analysis. Therefore, it is necessary to dissect cross-phenotype associations carefully to uncover true pleiotropic loci. In this review, we describe statistical methods that can be used to identify robust statistical evidence of pleiotropy. First, we provide an overview of univariate and multivariate methods for discovery of cross-phenotype associations and highlight important considerations for choosing among available methods. Then, we describe how to dissect cross-phenotype associations by using mediation analysis. Pleiotropic loci provide insights into the mechanistic underpinnings of disease comorbidity, and they may serve as novel targets for interventions that simultaneously treat multiple diseases. Discerning between different types of cross-phenotype associations is necessary to realize the public health potential of pleiotropic loci. PMID- 29020250 TI - Empiric Therapy With Carbapenem-Sparing Regimens for Bloodstream Infections due to Extended-Spectrum beta-Lactamase-Producing Enterobacteriaceae: Results From the INCREMENT Cohort. AB - Background: There is little information about the efficacy of active alternative drugs to carbapenems except beta-lactam/beta-lactamase inhibitors for the treatment of bloodstream infections (BSIs) due to extended-spectrum beta lactamase-producing Enterobacteriaceae (ESBL-E). The objective of this study was to assess the outcomes of patients with BSI due to ESBL-E who received empiric therapy with such drugs (other active drugs [OADs]) or carbapenems. Methods: A multinational retrospective cohort study of patients with BSI due to ESBL-E who received empiric treatment with OADs or carbapenems was performed. Cox regression including a propensity score for receiving OADs was performed to analyze 30-day all-cause mortality as main outcome. Clinical failure and length of stay were also analyzed. Results: Overall, 335 patients were included; 249 received empiric carbapenems and 86 OADs. The most frequent OADs were aminoglycosides (43 patients) and fluoroquinolones (20 patients). Empiric therapy with OADs was not associated with mortality (hazard ratio [HR], 0.75; 95% confidence interval [CI], .38-1.48) in the Cox regression analysis. Propensity score-matched pairs, subgroups, and sensitivity analyses did not show different trends; specifically, the adjusted HR for aminoglycosides was 1.05 (95% CI, .51-2.16). OADs were neither associated with 14-day clinical failure (adjusted odds ratio, 0.62; 95% CI, .29-1.36) nor length of hospital stay. Conclusions: We were unable to show that empiric treatment with OAD was associated with a worse outcome compared with carbapenems. This information allows more options to be considered for empiric therapy, at least for some patients, depending on local susceptibility patterns of ESBL-E. PMID- 29020256 TI - When to Censor? AB - Loss to follow-up is an endemic feature of time-to-event analyses that precludes observation of the event of interest. To our knowledge, in typical cohort studies with encounters occurring at regular or irregular intervals, there is no consensus on how to handle person-time between participants' last study encounter and the point at which they meet a definition of loss to follow-up. We demonstrate, using simulation and an example, that when the event of interest is captured outside of a study encounter (e.g., in a registry), person-time should be censored when the study-defined criterion for loss to follow-up is met (e.g., 1 year after last encounter), rather than at the last study encounter. Conversely, when the event of interest must be measured within the context of a study encounter (e.g., a biomarker value), person-time should be censored at the last study encounter. An inappropriate censoring scheme has the potential to result in substantial bias that may not be easily corrected. PMID- 29020258 TI - Reply to Gupta-Wright et al. PMID- 29020257 TI - Reappraising myocardial fibrosis in severe aortic stenosis: an invasive and non invasive study in 133 patients. AB - Aims: To investigate myocardial fibrosis (MF) in a large series of severe aortic stenosis (AS) patients using invasive biopsy and non-invasive imaging. Methods and results: One hundred thirty-three patients with severe, symptomatic AS accepted for surgical aortic valve replacement underwent cardiovascular magnetic resonance (CMR) with late gadolinium enhancement (LGE) and extracellular volume fraction (ECV) quantification. Intra-operative left ventricular (LV) biopsies were performed by needle or scalpel, yielding tissue with (n = 53) and without endocardium (n = 80), and compared with 10 controls. Myocardial fibrosis occurred in three patterns: (i) thickened endocardium with a fibrotic layer; (ii) microscopic scars, with a subendomyocardial predominance; and (iii) diffuse interstitial fibrosis. Collagen volume fraction (CVF) was elevated (P < 0.001) compared with controls, and higher (P < 0.001) in endocardium-containing samples with a decreasing CVF gradient from the subendocardium (P = 0.001). Late gadolinium enhancement correlated with CVF (P < 0.001) but not ECV. Both LGE and ECV correlated independently (P < 0.001) with N-terminal pro-brain natriuretic peptide and high-sensitivity-troponin T. High ECV was also associated with worse LV remodelling, left ventricular ejection fraction and functional capacity. Combining high ECV and LGE better identified patients with more adverse LV remodelling, blood biomarkers and histological parameters, and worse functional capacity than each parameter alone. Conclusion: Myocardial fibrosis in severe AS is complex, but three main patterns exist: endocardial fibrosis, microscars (mainly in the subendomyocardium), and diffuse interstitial fibrosis. Neither histological CVF nor the CMR parameters ECV and LGE capture fibrosis in its totality. A combined, multi-parametric approach with ECV and LGE allows best stratification of AS patients according to the response of the myocardial collagen matrix. PMID- 29020259 TI - Report of an ESC-EAPCI Task Force on the evaluation and use of bioresorbable scaffolds for percutaneous coronary intervention: executive summary. AB - A previous Task Force of the European Society of Cardiology (ESC) and European Association of Percutaneous Cardiovascular Interventions (EAPCI) provided a report on recommendations for the non-clinical and clinical evaluation of coronary stents. Following dialogue with the European Commission, the Task Force was asked to prepare an additional report on the class of devices known as bioresorbable scaffolds (BRS). Five BRS have CE-mark approval for use in Europe. Only one device-the Absorb bioresorbable vascular scaffold-has published randomized clinical trial data and this data show inferior outcomes to conventional drug-eluting stents (DES) at 2-3 years. For this reason, at present BRS should not be preferred to conventional DES in clinical practice. The Task Force recommends that new BRS devices should undergo systematic non-clinical testing according to standardized criteria prior to evaluation in clinical studies. A clinical evaluation plan should include data from a medium sized, randomized trial against DES powered for a surrogate end point of clinical efficacy. Manufacturers of successful devices receive CE-mark approval for use and must have an approved plan for a large-scale randomized clinical trial with planned long-term follow-up. PMID- 29020261 TI - Aortic valve replacement in younger patients. PMID- 29020260 TI - Clinical implications of three-vessel fractional flow reserve measurement in patients with coronary artery disease. AB - Aims: There are limited data on the clinical implications of total physiologic atherosclerotic burden assessed by invasive physiologic studies in patients with coronary artery disease. We investigated the prognostic implications of total physiologic atherosclerotic burden assessed by total sum of fractional flow reserve (FFR) in three vessels (3V-FFR). Methods and results: A total of 1136 patients underwent FFR measurement in three vessels (3V FFR-FRIENDS study, NCT01621438). The patients were classified into high and low 3V-FFR groups according to the median value of 3V-FFR (2.72). The primary endpoint was major adverse cardiac events (MACE, a composite of cardiac death, myocardial infarction and ischaemia-driven revascularization) at 2 years. Mean angiographic percent diameter stenosis and FFR were 43.7 +/- 19.3% and 0.90 +/- 0.08, respectively. There was a negative correlation between 3V-FFR and estimated 2-year MACE rate (P < 0.001). The patients in low 3V-FFR group showed a higher risk of 2-year MACE than those in the high 3V-FFR group [(7.1% vs. 3.8%, hazard ratio (HR) 2.205, 95% confidence interval (CI) 1.201-4.048, P = 0.011]. The higher 2-year MACE rate was mainly driven by the higher rate of ischaemia-driven revascularization in the low 3V-FFR group (6.2% vs. 2.7%, HR 2.568, 95% CI 1.283-5.140, P = 0.008). In a multivariable adjusted model, low 3V-FFR was an independent predictor of MACE (HR 2.031, 95% CI 1.078-3.830, P = 0.029). Conclusion: Patients with high total physiologic atherosclerotic burden assessed by 3V-FFR showed higher risk of 2 year clinical events than those with low total physiologic atherosclerotic burden. The difference was mainly driven by ischaemia-driven revascularization for both functionally significant and insignificant lesions at baseline. Three vessel FFR might be used as a prognostic indicator in patients with coronary artery disease. Clinical trial registration: 3V FFR-FRIENDS study (https://clinicaltrials.gov/ct2/show/NCT01621438, NCT01621438). PMID- 29020262 TI - Cigarette Smoking and Risk of Early Natural Menopause. AB - Menopause before 45 years of age affects roughly 5%-10% of women and is associated with a higher risk of adverse health conditions. Although smoking may increase the risk of early menopause, evidence is inconsistent, and data regarding smoking amount, duration, cessation, associated risks, and patterns over time are scant. We analyzed data of 116,429 nurses from the Nurses' Health Study II from 1989 through 2011 and used Cox proportional hazards models to estimate hazard ratios adjusted for confounders. Compared with never-smokers, current smokers (hazard ratio (HR) = 1.90, 95% confidence interval (CI): 1.71, 2.11) and former smokers (HR = 1.10, 95% CI: 1.00, 1.21) showed an increased risk of early menopause. Increased risks were observed among women who reported current smoking for 11-15 pack-years (HR = 1.72, 95% CI: 1.36, 2.18), 16-20 pack years (HR = 1.72, 95% CI: 1.38, 2.14), and more than 20 pack-years (HR = 2.42, 95% CI: 2.11, 2.77). Elevated risk was observed in former smokers who reported 11 15 pack-years (HR = 1.29, 95% CI: 1.07, 1.55), 16-20 pack-years (HR = 1.42, 95% CI: 1.13, 1.79), or more than 20 pack-years (HR = 1.54, 95% CI: 1.23, 1.93). Women who smoked 10 or fewer cigarettes/day but quit by age 25 had comparable risk to never-smokers (HR = 1.03, 95% CI: 0.91, 1.17). A dose-response relationship between smoking and early natural menopause risk, as well as reduced risk among quitters, may provide insights into the mechanisms of cigarette smoking in reproductive health. PMID- 29020264 TI - Examining the Association Between Apparent Temperature and Mental Health-Related Emergency Room Visits in California. AB - The association between ambient temperature and morbidity has been explored previously. However, the association between temperature and mental health related outcomes, including violence and self-harm, remains relatively unexamined. For the period 2005-2013, we obtained daily counts of mental health related emergency room visits involving injuries with an external cause for 16 California climate zones from the California Office of Statewide Health Planning and Development and combined them with data on mean apparent temperature, a combination of temperature and humidity. Using Poisson regression models, we estimated climate zone-level associations and then used random-effects meta analyses to produce overall estimates. Analyses were stratified by season (warm: May-October; cold: November-April), race/ethnicity, and age. During the warm season, a 10 degrees F (5.6 degrees C) increase in same-day mean apparent temperature was associated with 4.8% (95% confidence interval (CI): 3.6, 6.0), 5.8% (95% CI: 4.5, 7.1), and 7.9% (95% CI: 7.3, 8.4) increases in the risk of emergency room visits for mental health disorders, self-injury/suicide, and intentional injury/homicide, respectively. High temperatures during the cold season were also positively associated with these outcomes. Variations were observed by race/ethnicity, age group, and sex, with Hispanics, whites, persons aged 6-18 years, and females being at greatest risk for most outcomes. Increasing mean apparent temperature was found to have acute associations with mental health outcomes and intentional injuries, and these findings warrant further study in other locations. PMID- 29020265 TI - Looking at the Force beyond the Dark side of mechanical massage. PMID- 29020266 TI - Propionibacterium avidum: A Virulent Pathogen Causing Hip Periprosthetic Joint Infection. AB - Background: Propionibacteria are important members of the human skin microbiota, but are also opportunistic pathogens associated with periprosthetic joint infection (PJI). While the role of Propionibacterium acnes in PJI has been widely described, insight into the capacity of Propionibacterium avidum to cause PJI is limited. Methods: An unusual cluster of 4 hip PJIs caused by P. avidum in one orthopedic center in 2015 prompted us to retrospectively identify and analyze clinical data related to previous P. avidum PJI cases (1997-2015). We also characterized the hemolytic and biofilm-producing capacity of our 4 clinical P. avidum strains isolated in 2015, and investigated their phylogenetic relationships by whole-genome sequencing. Results: We retrospectively identified 13 P. avidum PJIs, with the majority being hip-related infections (n = 11). Preoperative synovial fluid cultures were P. avidum positive in 63.6% of cases. Six of 12 patients (50%) with available case histories were treated with an exchange of the prosthesis. In all but 1 of the 6 patients treated with debridement-retention of the prosthesis, treatment failed, thus requiring a 2 stage revision. The isolated P. avidum strains showed a more pronounced hemolytic activity, but a similar biofilm-forming ability when compared to P. acnes. Whole genome sequencing identified 2 phylogenetic clusters highly related to P. avidum PJI strains isolated in Sweden. Conclusions: We describe the largest series of P. avidum PJI predominantly located in the hip. Phylogenetic similarity of our P. avidum strains to PJI strains isolated elsewhere suggests that these invasive lineages may be common. PMID- 29020269 TI - Hepatitis C Screening: From Modeling to Public Health Policy. PMID- 29020268 TI - Office blood pressure or ambulatory blood pressure for the prediction of cardiovascular events. AB - Aims: To determine the added value of (i) 24-h ambulatory blood pressure relative to office blood pressure and (ii) night-time ambulatory blood pressure relative to daytime ambulatory blood pressure for 10-year person-specific absolute risks of fatal and non-fatal cardiovascular events. Methods and results: A total of 7927 participants were included from the International Database on Ambulatory blood pressure monitoring in relation to Cardiovascular Outcomes. We used cause specific Cox regression to predict 10-year person-specific absolute risks of fatal and non-fatal cardiovascular events. Discrimination of 10-year outcomes was assessed by time-dependent area under the receiver operating characteristic curve (AUC). No differences in predicted risks were observed when comparing office blood pressure and ambulatory blood pressure. The median difference in 10-year risks (1st; 3rd quartile) was -0.01% (-0.3%; 0.1%) for cardiovascular mortality and -0.1% (-1.1%; 0.5%) for cardiovascular events. The difference in AUC (95% confidence interval) was 0.65% (0.22-1.08%) for cardiovascular mortality and 1.33% (0.83-1.84%) for cardiovascular events. Comparing daytime and night-time blood pressure, the median difference in 10-year risks was 0.002% (-0.1%; 0.1%) for cardiovascular mortality and -0.01% (-0.5%; 0.2%) for cardiovascular events. The difference in AUC was 0.10% (-0.08 to 0.29%) for cardiovascular mortality and 0.15% (-0.06 to 0.35%) for cardiovascular events. Conclusion: Ten-year predictions obtained from ambulatory blood pressure are similar to predictions from office blood pressure. Night-time blood pressure does not improve 10-year predictions obtained from daytime measurements. For an otherwise healthy population sufficient prognostic accuracy of cardiovascular risks can be achieved with office blood pressure. PMID- 29020270 TI - Homozygous familial hypercholesterolaemia: light at the end of the tunnel. PMID- 29020271 TI - Renal denervation: will the Phoenix rise from the ashes? PMID- 29020267 TI - Burden of Influenza in 4 Ecologically Distinct Regions of Peru: Household Active Surveillance of a Community Cohort, 2009-2015. AB - Background: There are limited data on the burden of disease posed by influenza in low- and middle-income countries. Furthermore, most estimates of influenza disease burden worldwide rely on passive sentinel surveillance at health clinics and hospitals that lack accurate population denominators. Methods: We documented influenza incidence, seasonality, health-system utilization with influenza illness, and vaccination coverage through active community-based surveillance in 4 ecologically distinct regions of Peru over 6 years. Approximately 7200 people in 1500 randomly selected households were visited 3 times per week. Naso- and oropharyngeal swabs were collected from persons with influenza-like illness and tested for influenza virus by real-time reverse-transcription polymerase chain reaction. Results: We followed participants for 35353 person-years (PY). The overall incidence of influenza was 100 per 1000 PY (95% confidence interval [CI], 97-104) and was highest in children aged 2-4 years (256/1000 PY [95% CI, 236 277]). Seasonal incidence trends were similar across sites, with 61% of annual influenza cases occurring during the austral winter (May-September). Of all participants, 44 per 1000 PY (95% CI, 42-46) sought medical care, 0.7 per 1000 PY (95% CI, 0.4-1.0) were hospitalized, and 1 person died (2.8/100000 PY). Influenza vaccine coverage was 27% among children aged 6-23 months and 26% among persons aged >=65 years. Conclusions: Our results indicate that 1 in 10 persons develops influenza each year in Peru, with the highest incidence in young children. Active community-based surveillance allows for a better understanding of the true burden and seasonality of disease that is essential to plan the optimal target groups, timing, and cost of national influenza vaccination programs. PMID- 29020272 TI - Walking pace and handgrip strength: simple measures of fitness and mortality risk? PMID- 29020274 TI - The Times They Are A-Changin': Time-Dependent Exposures and Time-Dependent Confounders. PMID- 29020273 TI - The Transmissibility of Antibiotic-Resistant Enterobacteriaceae in Intensive Care Units. AB - Background: The global emergence of infections caused by Enterobacteriaceae resistant to expanded-spectrum cephalosporins (ESCs) in intensive care units (ICUs) is, at least partly, driven by cross-transmission. Yet, individual transmission capacities of bacterial species have not been quantified. Methods: In this post hoc analysis of a multicenter study in 13 European ICUs, prospective surveillance data and a mathematical model were used to estimate transmission capacities and single-admission reproduction numbers (RA) of Escherichia coli and non-E. coli Enterobacteriaceae (non-EcE), all being ESC resistant. Surveillance was based on a chromogenic selective medium for ESC-resistant Enterobacteriaceae, allowing identification of E. coli and of Klebsiella, Enterobacter, Serratia, and Citrobacter species, grouped as non-EcE. Results: Among 11420 patients included, the admission prevalence was 3.8% for non-EcE (74% being Klebsiella pneumoniae) and 3.3% for E. coli. Acquisition rates were 7.4 and 2.6 per 100 admissions at risk for non-EcE and E. coli, respectively. The estimated transmission capacity of non-EcE was 3.7 (95% credibility interval [CrI], 1.4-11.3) times higher than that of E. coli, yielding single-admission reproduction numbers (RA) of 0.17 (95% CrI, .094-.29) for non-EcE and 0.047 (95% CrI, .018-.098) for E. coli. Conclusions: In ICUs, non-EcE, mainly K. pneumoniae, are 3.7 times more transmissible than E. coli. Estimated RA values of these bacteria were below the critical threshold of 1, suggesting that in these ICUs outbreaks typically remain small with current infection control policies. PMID- 29020263 TI - 2017 HIVMA of IDSA Clinical Practice Guideline for the Management of Chronic Pain in Patients Living With HIV. AB - Pain has always been an important part of human immunodeficiency virus (HIV) disease and its experience for patients. In this guideline, we review the types of chronic pain commonly seen among persons living with HIV (PLWH) and review the limited evidence base for treatment of chronic noncancer pain in this population. We also review the management of chronic pain in special populations of PLWH, including persons with substance use and mental health disorders. Finally, a general review of possible pharmacokinetic interactions is included to assist the HIV clinician in the treatment of chronic pain in this population.It is important to realize that guidelines cannot always account for individual variation among patients. They are not intended to supplant physician judgment with respect to particular patients or special clinical situations. The Infectious Diseases Society of American considers adherence to these guidelines to be voluntary, with the ultimate determination regarding their application to be made by the physician in the light of each patient's individual circumstances. PMID- 29020275 TI - Citius, Altius, Fortius: The New Paradigm in the Treatment of Chronic Hepatitis C Disease. AB - With the advent of the direct-acting antiviral agents (DAAs) for chronic hepatitis C infection, the treatment paradigm has dramatically changed, especially the duration, tolerability, and response to therapy. The DAAs fall into several classes and are variously indicated in the treatment of one or more genotypes of infection. All these agents are orally administered and, as they are largely renally eliminated (with exceptions), do not require adjustment in mild to moderate renal insufficiency. Most of these agents demonstrate a high barrier to resistance and are extremely well-tolerated by patients. Overall efficacy rates are >=90%. PMID- 29020276 TI - Antibiotic Expenditures by Medication, Class, and Healthcare Setting in the United States, 2010-2015. AB - Background: Improving antibiotic use has the potential to decrease healthcare costs by reducing the incidence of antibiotic-resistant infections, antibiotic associated adverse events, and expenditures due to unnecessary prescriptions. Antibiotic expenditures in 2009 totaled $10.7 billion in the United States. Since then, national and local antibiotic stewardship initiatives have grown. The purpose of this study was to assess trends in antibiotic expenditures by healthcare setting in the United States between 2010 and 2015. Methods: Systemic (nontopical) antibiotic expenditures from January 2010 to December 2015 were extracted from the QuintilesIMS National Sales Perspectives database. These data represent a statistically valid projection of US medication purchases. Regression analyses evaluated trends in expenditures over the study period. Results: Antibiotic expenditures totaled $56.0 billion over the 6-year period; the majority (59.1%) of expenditures were associated with the outpatient setting. Overall antibiotic expenditures in 2015 ($8.8 billion) were 16.6% lower than in 2010 ($10.6 billion). Antibiotic expenditures similarly decreased in the community by 25.5% (P = .05), but outpatient clinics and mail service pharmacy expenditures experienced significant growth (148% and 67% increase, respectively; P < .01 for both). In 2015, 16.5% of antibiotic expenditures in the community were for parenteral formulations, an increase of 25%. Conclusions: From 2010 to 2015, antibiotic expenditures decreased. The majority of antibiotic expenditures were in the outpatient setting, specifically community pharmacies. Expenditures for intravenous agents in the community are increasing and may represent increased use. These results reinforce the importance of antibiotic stewardship efforts across the spectrum of healthcare. PMID- 29020277 TI - HIV-care access among people with incarceration experience in St. Petersburg, Russia. AB - Background: Little is known about the clinical care experiences of HIV-infected persons in St. Petersburg who have experience with incarceration. To address this question, we conducted a capture-recapture study to identify individuals who had been diagnosed with HIV infection while incarcerated and who subsequently presented for medical care in St. Petersburg, Russia following release from prison. Methods: We matched 292 HIV-positive prisoners tested by the prison system in 2010 to the medical records at the St. Petersburg AIDS Center in the following 4 years. Results: The data analysis shows that as many as half of HIV+ prisoners fail to seek treatment in the community upon release. Of those who had sought care post-release, only 36% were receiving HAART. Of the 109 individuals for whom tuberculosis testing was indicated post-release, 36.7% were found to be reactive. Conclusion: Despite the limitations of the data, this study is the first of its kind to review records documenting HIV care among prisoners in Russia post-incarceration. In addition to providing important descriptive information about this marginalized population, the findings from this study highlight areas where HIV control efforts could be improved in order to address the HIV epidemic in the Russian Federation. PMID- 29020278 TI - Depressive Symptoms in Patients Referred to a Tertiary Lyme Center: High Prevalence in Those Without Evidence of Lyme Borreliosis. AB - Background: Controversy exists whether mood disorders, such as depression, are associated with Lyme borreliosis (LB). The study objective was to assess prevalence of depressive symptoms in subgroups of patients referred to a tertiary Lyme center, to investigate whether depressive symptoms can be used in clinical practice to discriminate for LB. Methods: This cohort study included adult patients who visited a tertiary Lyme center between January 2008 and December 2014. Prior to medical consultation, serum samples were taken and the Beck Depression Inventory II was completed to assess depressive symptoms. Lyme diagnosis was retrospectively extracted from the patient's medical record. Patients were classified based on clinical LB and serology results. Prevalence of moderate/severe depressive symptoms was calculated. Using logistic regression, odds ratios with 95% confidence intervals (CIs) were calculated for moderate/severe depressive symptoms. Results: In total, 1454 patients were included. Prevalence of moderate/severe depressive symptoms was lowest in patients with no clinical LB and positive serology (15.3%), higher in patients with clinical LB with positive and negative serology (19.3% and 20.9% respectively), and highest in patients with no clinical LB and negative serology (29.3%). The odds ratio for moderate/severe depressive symptoms in patients with LB and positive serology was 0.71 (95% CI, .50-1.03) compared to patients with no LB and negative serology. Conclusions: The prevalence of depressive symptoms was similar in patients with LB compared to patients with no evidence of infection. This suggests that depressive symptoms cannot be used to discriminate for LB in a tertiary Lyme center. PMID- 29020279 TI - Cost Drivers of a Hospital-Acquired Bacterial Pneumonia and Ventilator-Associated Bacterial Pneumonia Phase 3 Clinical Trial. AB - Background: Studies indicate that the prevalence of multidrug-resistant infections, including hospital-acquired bacterial pneumonia and ventilator associated bacterial pneumonia (HABP/VABP), has been rising. There are many challenges associated with these disease conditions and the ability to develop new treatments. Additionally, HABP/VABP clinical trials are very costly to conduct given their complex protocol designs and the difficulty in recruiting and retaining patients. Methods: With input from clinicians, representatives from industry, and the US Food and Drug Administration, we conducted a study to (1) evaluate the drivers of HABP/VABP phase 3 direct and indirect clinical trial costs; (2) to identify opportunities to lower these costs; and (3) to compare (1) and (2) to endocrine and oncology clinical trials. Benchmark data were gathered from proprietary and commercial databases and used to create a model that calculates the fully loaded (direct and indirect) cost of typical phase 3 HABP/VABP endocrine and oncology clinical trials. Results: Results indicate that the cost per patient for a 200-site, 1000-patient phase 3 HABP/VABP study is $89600 per patient. The cost of screen failures and screen failure rates are the main cost drivers. Conclusions: Results indicate that biopharmaceutical companies and regulatory agencies should consider strategies to improve screening and recruitment to decrease HABP/VABP clinical trial costs. PMID- 29020280 TI - Campylobacter fetus Cluster Among Men Who Have Sex With Men, Montreal, Quebec, Canada, 2014-2016. AB - From March 2014 to December 2016, a cluster of 13 cases of Campylobacter fetus intestinal and extraintestinal infections, including 2 patients with an aortic mycotic aneurysm, caused significant morbidity. The cluster likely resulted from sexual transmission between men having sex with men living in the greater Montreal area, Quebec, Canada. PMID- 29020281 TI - Association of walking pace and handgrip strength with all-cause, cardiovascular, and cancer mortality: a UK Biobank observational study. AB - Aims: To quantify the association of self-reported walking pace and handgrip strength with all-cause, cardiovascular, and cancer mortality. Methods and results: A total of 230 670 women and 190 057 men free from prevalent cancer and cardiovascular disease were included from UK Biobank. Usual walking pace was self defined as slow, steady/average or brisk. Handgrip strength was assessed by dynamometer. Cox-proportional hazard models were adjusted for social deprivation, ethnicity, employment, medications, alcohol use, diet, physical activity, and television viewing time. Interaction terms investigated whether age, body mass index (BMI), and smoking status modified associations. Over 6.3 years, there were 8598 deaths, 1654 from cardiovascular disease and 4850 from cancer. Associations of walking pace with mortality were modified by BMI. In women, the hazard ratio (HR) for all-cause mortality in slow compared with fast walkers were 2.16 [95% confidence interval (CI): 1.68-2.77] and 1.31 (1.08-1.60) in the bottom and top BMI tertiles, respectively; corresponding HRs for men were 2.01 (1.68-2.41) and 1.41 (1.20-1.66). Hazard ratios for cardiovascular mortality remained above 1.7 across all categories of BMI in men and women, with modest heterogeneity in men. Handgrip strength was associated with cardiovascular mortality in men only (HR tertile 1 vs. tertile 3 = 1.38; 1.18-1.62), without differences across BMI categories, while associations with all-cause mortality were only seen in men with low BMI. Associations for walking pace and handgrip strength with cancer mortality were less consistent. Conclusion: A simple self-reported measure of slow walking pace could aid risk stratification for all-cause and cardiovascular mortality within the general population. PMID- 29020283 TI - Retrospective cohort study of breast cancer incidence, health service use and outcomes in Europe: a study of feasibility. AB - Background: Comparisons of outcomes of health care in different systems can be used to inform health policy. The EuroHOPE (European Healthcare Outcomes, Performance and Efficiency) project investigated the feasibility of comparing routine data on selected conditions including breast cancer across participating European countries. Methods: Routine data on incidence, treatment and mortality by age and clinical characteristics for breast cancer in women over 24 years of age were obtained (for a calendar year) from linked hospital discharge records, cancer and death registers from Finland, the Turin metropolitan area, Scotland and Sweden (all 2005), Hungary (2006) and Norway (2009). Age-adjusted breast cancer incidence and 1-year survival were estimated for each country/region. Results: In total, 24 576 invasive breast cancer cases were identified from cancer registries from over 13 million women. Age-adjusted incidence ranged from 151.1 (95%CI 147.2-155.0) in Hungary to 234.7 (95%CI 227.4-242.0)/100 000 in Scotland. One-year survival ranged from 94.1% (95%CI 93.5-94.7%) in Scotland to 97.1% (95%CI 96.2-98.1%) in Italy. Scotland had the highest proportions of poor prognostic factors in terms of tumour size, nodal status and metastases. Significant variations in data completeness for prognostic factors prevented adjustment for case mix. Conclusion: Incidence of and survival from breast cancer showed large differences between countries. Substantial improvements in the use of internationally recognised common terminology, standardised data coding and data completeness for prognostic indicators are required before international comparisons of routine data can be used to inform health policy. PMID- 29020282 TI - Elevated Levels of Estradiol in Human Immunodeficiency Virus-Infected Pregnant Women on Protease Inhibitor-Based Regimens. AB - Background: Human immunodeficiency virus (HIV)-infected pregnant women on protease inhibitor (PI)-based combination antiretroviral therapy (cART) have a greater risk for adverse birth outcomes, and an association with steroid hormone levels has been implicated. The objective of this study was to investigate the association between PI-cART and estradiol levels in pregnancy. Methods: Fifty five HIV-infected and 49 HIV-uninfected Canadian pregnant women were followed prospectively throughout gestation. All HIV-infected women were on a PI-based cART regimen. Maternal plasma samples were collected at 12-18 weeks, 24-28 weeks, 34-38 weeks, at delivery, and from the cord. Birth outcomes were recorded. Levels of estradiol, dehydroepiandrosterone sulfate (DHEAS), sex hormone-binding globulin (SHBG), cortisol, and adrenocorticotropic hormone (ACTH) were quantified by enzyme-linked immunosorbent assay. Results: (median [interquartile range] for cord estradiol: 23.9 ng/mL [16.4-36.4] for HIV-infected exposed to PI-cART and 15.7 ng/mL [12.2-21.2] for HIV-negative; P = .0025). HIV-infected women had higher DHEAS levels in cord plasma that correlated with cord and maternal delivery estradiol levels. Cortisol and ACTH levels did not differ between groups. In the HIV-infected women, cord estradiol levels correlated negatively with birth weight centile (r = -0.47, P = .0016). Conclusions: Our data suggest that PI-cART exposure in pregnancy is associated with elevated levels of estradiol, likely driven by higher fetal DHEAS production. Cord estradiol levels were inversely correlated with birth weight centile in infants born to PI-cART exposed women, suggesting that fetal exposure to high estradiol levels may be contributing to cART-associated fetal growth restriction. PMID- 29020284 TI - Performance of Targeted Fungal Sequencing for Culture-Independent Diagnosis of Invasive Fungal Disease. AB - Background: Identification of fungi causing invasive fungal disease (IFD) is critical for guiding antifungal therapy. We describe the performance and clinical impact of a targeted panfungal polymerase chain reaction (PCR) amplicon sequencing assay for culture-independent diagnosis of IFD. Methods: Between January 2009 and September 2016, 233 specimens, consisting of fresh and formalin fixed, paraffin-embedded (FFPE) tissues and sterile body fluids with known diagnosis of IFD based on reference method results (n = 117), and specimens with negative fungal culture, but with microscopic and ancillary findings indicative of IFD (n = 116), were included. PCR amplicons from the internal transcribed spacer 2 and the D2 region of 28S ribosomal RNA gene were sequenced and fungi identified. Results: Sensitivity and specificity of fungal sequencing in specimens with known diagnosis were 96.6% (95% confidence interval [CI], 87.4% 99.4%; 58/60) and 98.2% (95% CI, 89.4%-99.9%; 56/57). In patients with suspected IFD, the diagnostic yield of fungal sequencing was 62.9% (73/116) overall and 71.3% (57/80) in patients classified with proven IFD based on the European Organization for Research and Treatment of Cancer/Invasive Fungal Infections Cooperative Group and Mycoses Study Group (EORTC/MSG) criteria. Samples obtained by open biopsy had a significantly higher diagnostic yield (71.5% [40/56]) compared with core-needle biopsy (50% [17/34] P = .04) and fine needle aspiration (0% [0/2]; P = .009). Additionally, D2 sequencing diagnosed 5 cases of invasive protozoal infections due to Toxoplasma gondii (n = 3), Trypanosoma cruzi, and Leishmania species. Sequencing results altered patient management in the majority of suspected cases. Conclusions: The targeted fungal sequencing assay allowed accurate identification of fungi causing IFD and additionally provided partial protozoal coverage. The diagnostic yield was dependent on the amount of tissue available for testing. PMID- 29020285 TI - Impact of Systemic Antibiotics on Staphylococcus aureus Colonization and Recurrent Skin Infection. AB - Background: Staphylococcus aureus colonization poses risk for subsequent skin and soft tissue infection (SSTI). We hypothesized that including systemic antibiotics in the management of S. aureus SSTI, in conjunction with incision and drainage, would reduce S. aureus colonization and incidence of recurrent infection. Methods: We prospectively evaluated 383 children with S. aureus SSTI requiring incision and drainage and S. aureus colonization in the anterior nares, axillae, or inguinal folds at baseline screening. Systemic antibiotic prescribing at the point of care was recorded. Repeat colonization sampling was performed within 3 months (median, 38 days; interquartile range, 22-50 days) in 357 participants. Incidence of recurrent infection was ascertained for up to 1 year. Results: Participants prescribed guideline-recommended empiric antibiotics for purulent SSTI were less likely to remain colonized at follow-up sampling (adjusted hazard ratio [aHR], 0.49; 95% confidence interval [CI], .30-.79) and less likely to have recurrent SSTI (aHR, 0.57; 95% CI, .34-.94) than those not receiving guideline recommended empiric antibiotics for their SSTI. Additionally, participants remaining colonized at repeat sampling were more likely to report a recurrent infection over 12 months (aHR, 2.37; 95% CI, 1.69-3.31). Clindamycin was more effective than trimethoprim-sulfamethoxazole (TMP-SMX) in eradicating S. aureus colonization (44% vs 57% remained colonized, P = .03) and preventing recurrent SSTI (31% vs 47% experienced recurrence, P = .008). Conclusions: Systemic antibiotics, as part of acute SSTI management, impact S. aureus colonization, contributing to a decreased incidence of recurrent SSTI. The mechanism by which clindamycin differentially affects colonization and recurrent SSTI compared to TMP-SMX warrants further study. PMID- 29020287 TI - Optical coherence tomography or intravascular ultrasound to optimize coronary stent implantation. PMID- 29020288 TI - Safety of non-steroidal anti-inflammatory drugs. PMID- 29020289 TI - A Novel Human Pegivirus, HPgV-2 (HHpgV-1), Is Tightly Associated With Hepatitis C Virus (HCV) Infection and HCV/Human Immunodeficiency Virus Type 1 Coinfection. AB - Background: Human pegivirus type 2 (HPgV-2) is a novel blood-borne human pegivirus that mainly infects hepatitis C virus (HCV)-infected subjects. We have investigated the prevalence of HPgV-2 in China, its association with HCV and human immunodeficiency virus type 1 (HIV-1), and the impact on HCV viral load and liver damage. Methods: A cross-sectional study was conducted with both blood donors and HCV- and HIV-1-infected patients in Guangzhou, China. All subjects were screened for anti-HPgV-2 and HPgV-2 RNA. Demographic and clinical information were obtained from electronic medical records. Results: We tested 8198 serum or plasma samples. Only 0.15% (6/4017) of healthy blood donors were positive for anti-HPgV-2 and negative for HPgV-2 RNA. No HPgV-2 viremia was detected in hepatitis B virus- or HIV-1-monoinfected individuals. The relatively high frequency of HPgV-2 infection was observed in 1.23% (30/2440) and 0.29% (7/2440) of HCV-infected persons by serological assay and reverse-transcription polymerase chain reaction, respectively. Furthermore, anti-HPgV-2 and HPgV-2 RNA were detected in 8.91% (18/202) and 3.47% (7/202), respectively, of HCV/HIV-1 coinfected subjects. HPgV-2 persistent infection was documented in about 30% of anti-HPgV-2-positive individuals. In addition, HPgV-2 infection may not affect HCV-related liver injury and HCV viral load. Conclusions: Our results indicate the rarity of HPgV-2 infection in the general population and tight association with HCV, in particular with HCV/HIV-1 coinfection. HPgV-2 appears not to worsen HCV-related liver damage. Our study provides new findings about the association of HPgV-2 and HCV/HIV-1 and the impact of HPgV-2 infection on HCV replication and pathogenesis. PMID- 29020290 TI - Implementing Antimicrobial Stewardship in Long-term Care Settings: An Integrative Review Using a Human Factors Approach. AB - Implementing effective antimicrobial stewardship in long-term care facilities (LTCFs) is associated with challenges distinct from those faced by hospitals. LTCFs generally care for elderly populations who are vulnerable to infection, have prescribers who are often off-site, and have limited access to timely diagnostic testing. Identification of feasible interventions in LTCFs is important, particularly given the new requirement for stewardship programs by the Centers for Medicare and Medicaid Services (CMS). In this integrative review, we analyzed published evidence in the context of a human factors engineering approach as well as educational interventions to understand aspects of multimodal interventions associated with the implementation of successful stewardship programs in LTCFs. The outcomes indicate that effective antimicrobial stewardship in long-term care is supported by incorporating multidisciplinary education, tools integrated into the workflow of nurses and prescribers that facilitate review of antibiotic use, and involvement of infectious disease consultants. PMID- 29020292 TI - The management of antiplatelet therapy in acute coronary syndrome patients with thrombocytopenia: a clinical conundrum. PMID- 29020291 TI - Reward Sensitivity and Waiting Impulsivity: Shift towards Reward Valuation away from Action Control. AB - Background: Impulsivity and reward expectancy are commonly interrelated. Waiting impulsivity, measured using the rodent 5-Choice Serial Reaction Time task, predicts compulsive cocaine seeking and sign (or cue) tracking. Here, we assess human waiting impulsivity using a novel translational task, the 4-Choice Serial Reaction Time task, and the relationship with reward cues. Methods: Healthy volunteers (n=29) performed the monetary incentive delay task as a functional MRI study where subjects observe a cue predicting reward (cue) and wait to respond for high (L5), low (L1), or no reward. Waiting impulsivity was tested with the 4 Choice Serial Reaction Time task. Results: For high reward prospects (L5, no reward), greater waiting impulsivity on the 4-CSRT correlated with greater medial orbitofrontal cortex and lower supplementary motor area activity to cues. In response to high reward cues, greater waiting impulsivity was associated with greater subthalamic nucleus connectivity with orbitofrontal cortex and greater subgenual cingulate connectivity with anterior insula, but decreased connectivity with regions implicated in action selection and preparation. Conclusion: These findings highlight a shift towards regions implicated in reward valuation and a shift towards compulsivity away from higher level motor preparation and action selection and response. We highlight the role of reward sensitivity and impulsivity, mechanisms potentially linking human waiting impulsivity with incentive approach and compulsivity, theories highly relevant to disorders of addiction. PMID- 29020286 TI - Incidence, Risk Factors and Outcome of Pre-engraftment Gram-Negative Bacteremia After Allogeneic and Autologous Hematopoietic Stem Cell Transplantation: An Italian Prospective Multicenter Survey. AB - Background: Gram-negative bacteremia (GNB) is a major cause of illness and death after hematopoietic stem cell transplantation (HSCT), and updated epidemiological investigation is advisable. Methods: We prospectively evaluated the epidemiology of pre-engraftment GNB in 1118 allogeneic HSCTs (allo-HSCTs) and 1625 autologous HSCTs (auto-HSCTs) among 54 transplant centers during 2014 (SIGNB-GITMO-AMCLI study). Using logistic regression methods. we identified risk factors for GNB and evaluated the impact of GNB on the 4-month overall-survival after transplant. Results: The cumulative incidence of pre-engraftment GNB was 17.3% in allo-HSCT and 9% in auto-HSCT. Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa were the most common isolates. By multivariate analysis, variables associated with GNB were a diagnosis of acute leukemia, a transplant from a HLA mismatched donor and from cord blood, older age, and duration of severe neutropenia in allo-HSCT, and a diagnosis of lymphoma, older age, and no antibacterial prophylaxis in auto-HSCT. A pretransplant infection by a resistant pathogen was significantly associated with an increased risk of posttransplant infection by the same microorganism in allo-HSCT. Colonization by resistant gram negative bacteria was significantly associated with an increased rate of infection by the same pathogen in both transplant procedures. GNB was independently associated with increased mortality at 4 months both in allo-HSCT (hazard ratio, 2.13; 95% confidence interval, 1.45-3.13; P <.001) and auto-HSCT (2.43; 1.22-4.84; P = .01). Conclusions: Pre-engraftment GNB is an independent factor associated with increased mortality rate at 4 months after auto-HSCT and allo-HSCT. Previous infectious history and colonization monitoring represent major indicators of GNB. Clinical Trials registration: NCT02088840. PMID- 29020294 TI - Predicting Resistance to Piperacillin-Tazobactam, Cefepime and Meropenem in Septic Patients With Bloodstream Infection Due to Gram-Negative Bacteria. AB - Background: Predicting antimicrobial resistance in gram-negative bacteria (GNB) could balance the need for administering appropriate empiric antibiotics while also minimizing the use of clinically unwarranted broad-spectrum agents. Our objective was to develop a practical prediction rule able to identify patients with GNB infection at low risk for resistance to piperacillin-tazobactam (PT), cefepime (CE), and meropenem (ME). Methods: The study included adult patients with sepsis or septic shock due to bloodstream infections caused by GNB admitted between 2008 and 2015 from Barnes-Jewish Hospital. We used multivariable logistic regression analyses to describe risk factors associated with resistance to the antibiotics of interest (PT, CE, and ME). Clinical decision trees were developed using the recursive partitioning algorithm CHAID (chi2 Automatic Interaction Detection). Results: The study included 1618 consecutive patients. Prevalence rates for resistance to PT, CE, and ME were 28.6%, 21.8%, and 8.5%, respectively. Prior antibiotic use, nursing home residence, and transfer from an outside hospital were associated with resistance to all 3 antibiotics. Resistance to ME was specifically linked with infection attributed to Pseudomonas or Acinetobacter spp. Discrimination was similar for the multivariable logistic regression and CHAID tree models, with both being better for ME than for PT and CE. Recursive partitioning algorithms separated out 2 clusters with a low probability of ME resistance and 4 with a high probability of PT, CE, and ME resistance. Conclusions: With simple variables, clinical decision trees can be used to distinguish patients at low, intermediate, or high risk of resistance to PT, CE, and ME. PMID- 29020296 TI - The assessment of aortic stenosis: looking beyond the valve. PMID- 29020297 TI - RE: "TIME SPENT COMMUTING TO WORK AND MENTAL HEALTH: EVIDENCE FROM 13 WAVES OF AN AUSTRALIAN COHORT STUDY". PMID- 29020295 TI - Improved Retention With 6-Month Clinic Return Intervals for Stable Human Immunodeficiency Virus-Infected Patients in Zambia. AB - Background: Extending appointment intervals for stable HIV-infected patients in sub-Saharan Africa can reduce patient opportunity costs and decongest overcrowded facilities. Methods: We analyzed a cohort of stable HIV-infected adults (on treatment with CD4 >200 cells/MUL for more than 6 months) who presented for clinic visits in Lusaka, Zambia. We used multilevel, mixed-effects logistic regression adjusting for patient characteristics, including prior retention, to assess the association between scheduled appointment intervals and subsequent missed visits (>14 days late to next visit), gaps in medication (>14 days late to next pharmacy refill), and loss to follow-up (LTFU; >90 days late to next visit). Results: A total of 62084 patients (66.6% female, median age 38, median CD4 438 cells/MUL) made 501281 visits while stable on antiretroviral therapy. Most visits were scheduled around 1-month (25.0% clinical, 44.4% pharmacy) or 3-month intervals (49.8% clinical, 35.2% pharmacy), with fewer patients scheduled at 6 month intervals (10.3% clinical, 0.4% pharmacy). After adjustment and compared to patients scheduled to return in 1 month, patients with six-month clinic return intervals were the least likely to miss visits (adjusted odds ratio [aOR], 0.20; 95% confidence interval [CI], 0.17-0.24); miss medication pickups (aOR, 0.47; 95% CI 0.39-0.57), and become LTFU prior to the next visit (aOR, 0.41; 95% CI, 0.31 0.54). Conclusions: Six-month clinic return intervals were associated with decreased lateness, gaps in medication, and LTFU in stable HIV-infected patients and may represent a promising strategy to reduce patient burdens and decongest clinics. PMID- 29020299 TI - Lifestyle in population-based colorectal cancer screening over 2-year follow-up. AB - Background: Colorectal cancer (CRC) screening may cause changes in health-related lifestyle. In 2010, Finnish Mass Screening Registry began a study on psychosocial effects of CRC screening. This article examines whether there are differential developments in self-reported lifestyle at ages 59-61 years among CRC screening invitees and non-contacted controls. Methods: A population-based random sample of 10 648 Finnish adults born in 1951 and living in the municipalities voluntary involved in the CRC screening programme were sent a lifestyle questionnaire in 2010. In 2011, the cohort was randomised (1 : 1) for their first ever CRC screening at age 60 or for controls. The questionnaires were repeated in 2012 for all. From both survey rounds, 2508 pairs of completed questionnaires were available for analysis from the screening group and 2387 from the control group. The outcome was 2-year change in total lifestyle index of CRC risk factors (diet, physical activity, body mass index, alcohol consumption and smoking). Results: Total lifestyle index decreased throughout the follow-up in both the screening group [odds ratio (OR) = 0.80, 95% confidence interval (CI) 0.72-0.90] and in the control group (OR = 0.80, CI 0.71-0.90) indicating no difference in lifestyle changes between groups. There was also no significant difference by screening participation: the change in score was similar in those participating screening (OR 0.81, CI 0.72-0.92) and in those invited, but not participating (OR 0.75, CI 0.55-1.03). Conclusion: Present study found no unfavourable changes in total lifestyle in the studied age group due to CRC screening. Results are reassuring from the point of view of CRC screening evaluation. PMID- 29020293 TI - Dual Therapy With Darunavir and Ritonavir Plus Lamivudine vs Triple Therapy With Darunavir and Ritonavir Plus Tenofovir Disoproxil Fumarate and Emtricitabine or Abacavir and Lamivudine for Maintenance of Human Immunodeficiency Virus Type 1 Viral Suppression: Randomized, Open-Label, Noninferiority DUAL-GESIDA 8014-RIS EST45 Trial. AB - Background: Our objective was to assess the therapeutic noninferiority of dual therapy with darunavir/ritonavir and lamivudine compared to triple therapy with darunavir/ritonavir plus 2 nucleos(t)ides for maintenance of human immunodeficiency virus type 1 (HIV-1) suppression. Methods: This was a multicenter, open-label, noninferiority trial (margin 12%). Patients with HIV-1 RNA <50 copies/mL for 6 months or longer on triple therapy with darunavir/ritonavir and 2 nucleos(t)ides (tenofovir disoproxil fumarate and emtricitabine or abacavir and lamivudine) and with no resistance were randomized to continue therapy (n = 128) or switch to darunavir/ritonavir and lamivudine (n = 129). The primary endpoint was the proportion of participants with HIV-RNA <50 copies/mL after 48 weeks of follow-up according to the snapshot algorithm. Results: A total of 249 participants received study drugs (intention-to-treat exposed). The proportion of participants with HIV-RNA <50 copies/mL in the dual- and triple-therapy arms was 88.9% (112/126) and 92.7% (114/123; difference, 3.8%; 95% confidence interval, -11.0 to 3.4), respectively. Four participants in the dual-therapy arm and 2 in the triple-therapy arm developed protocol-defined virological failure. Switching to dual therapy was associated with a significant increase in total, low-density lipoprotein, and high-density lipoprotein (HDL) cholesterol, but not in the total-to-HDL cholesterol ratio. Serious adverse events and study drug discontinuations due to adverse events occurred in 4.8% vs 4.9%P = .97) and in 0.8% (1/126) vs 1.6% P = .55) in dual therapy vs triple therapy, respectively. Conclusions: Dual therapy with darunavir/ritonavir and lamivudine demonstrated noninferior therapeutic efficacy and similar tolerability compared to triple therapy. Clinical Trials Registration: NCT02159599. PMID- 29020298 TI - Use of a Dual-Antigen Rapid Diagnostic Test to Screen Children for Severe Plasmodium falciparum Malaria in a High-Transmission, Resource-Limited Setting. AB - Background: In rural areas, many patients with malaria seek care at peripheral health facilities or community case management programs. While this strategy is effective for the management of uncomplicated malaria, severe malaria necessitates prompt detection and referral to facilities with adequate resources. Methods: In this prospective, observational cohort study, we assessed the accuracy of a dual-band (histidine-rich protein-2/pan-lactate dehydrogenase [HRP2/pLDH]) rapid diagnostic test (RDT) to differentiate uncomplicated from severe malaria. We included children aged <12 years who presented to a rural clinic in western Uganda with a positive HRP2 or HRP2/pLDH RDT. We estimated the test characteristics of a dual-antigen (HRP2+/pLDH+) band positive RDT compared to World Health Organization-defined clinical and laboratory criteria to detect severe malaria. Results: A total of 2678 children underwent testing for malaria with an RDT, and 83 (9.0%) satisfied criteria for severe malaria. The sensitivity and specificity of a HRP2+/pLDH+ result for severe malaria was 97.6% (95% confidence interval [CI], 90.8%-99.6%) and 75.6% (95% CI, 73.8%-77.4%), respectively. An HRP2+/pLDH+ result was significantly more sensitive (97.6% vs 68.7%, P < .001) for the detection of severe malaria compared to algorithms that incorporate screening for danger signs. Conclusions: A positive dual-antigen (HRP2/pLDH) RDT has higher sensitivity than the use of clinical manifestations to detect severe malaria, making it a promising tool in the triage of children with malaria in low-resource settings. Additional work is needed to operationalize diagnostic and treatment algorithms that include dual-antigen RDTs to avoid over referral. PMID- 29020301 TI - THE AUTHORS REPLY. PMID- 29020302 TI - Cerebrovascular diseases in Poland-inconsistent seasonal patterns of hospitalisation and mortality. AB - Background: A seasonal variation in the incidence of cerebrovascular diseases still remains inconsistently evidenced. Herein, we analyse the monthly patterns of two health phenomena: hospital admissions and deaths due to these diseases. Methods: We identified 69 511 cases of hospital admissions and 14 956 deaths due to cerebrovascular diseases (ICD10: I60-I69 and G45) among the inhabitants of five Polish voivodeship capitals in 2004-13. The method of time series analysis (exponential smoothing with linear trend and monthly additive seasonality) was applied to calculate the monthly specific seasonal indices. The monthly variation in an in-hospital fatality and nonhospital deaths were also analysed. Results: A summer season reduction in number of cases was observed for hospital admissions and deaths. Interestingly, the winter season effect is much more complex, mainly due to the contribution of December, when a high mortality is accompanied by a substantial decrease in the hospitalisation level. This unique discrepancy was observed for all the studied cities. Moreover, this month is characterised by a notably high in-hospital fatality. However, neither the number of non-hospital deaths nor the average length of hospital stay or the kind of hospitalised diseases evidenced that cerebrovascular problems were more serious in December than in any other month. Conclusion: The obtained results confirmed a seasonal variation in cerebrovascular diseases among the inhabitants of Polish cities. Habitual and administrative limitations in hospital activities observed every December do not seem indifferent from the patient health's perspective since they may lead to a low hospitalisation level and a high in-hospital fatality. PMID- 29020300 TI - Impact of design of coronary stents and length of dual antiplatelet therapies on ischaemic and bleeding events: a network meta-analysis of 64 randomized controlled trials and 102 735 patients. AB - Aims: The differential impact on ischaemic and bleeding events of the type of drug-eluting stent [durable polymer stents [DES] vs. biodegradable polymer stents vs. bioresorbable scaffolds (BRS)] and length of dual antiplatelet therapy (DAPT) remains to be defined. Methods and results: Randomized controlled trials comparing different types of DES and/or DAPT durations were selected. The primary endpoint was Major Adverse Cardiovascular Events (MACE) [a composite of death, myocardial infarction (MI), and target vessel revascularization]. Definite stent thrombosis (ST) and single components of MACE were secondary endpoints. The arms of interest were: BRS with 12 months of DAPT (12mDAPT), biodegradable polymer stent with 12mDAPT, durable polymer stent [everolimus-eluting (EES), zotarolimus eluting (ZES)] with 12mDAPT, EES/ZES with <12 months of DAPT, and EES/ZES with >12 months of DAPT (DAPT > 12 m). Sixty-four studies with 150 arms and 102 735 patients were included. After a median follow-up of 20 months, MACE rates were similar in the different arms of interest. EES/ZES with DAPT > 12 m reported a lower incidence of MI than the other groups, while BRS showed a higher rate of ST when compared to EES/ZES, irrespective of DAPT length. A higher risk of major bleedings was observed for DAPT > 12 m as compared to shorter DAPT. Conclusion: Durable and biodegradable polymer stents along with BRS report a similar rate of MACE irrespective of DAPT length. Fewer MI are observed with EES/ZES with DAPT > 12 m, while a higher rate of ST is reported for BRS when compared to EES/ZES, independently from DAPT length. Stent type may partially affect the outcome together with DAPT length. PMID- 29020303 TI - Risk of Venous Thromboembolism Following Hemorrhagic Fever With Renal Syndrome: A Self-controlled Case Series Study. AB - Background: Bleeding is associated with viral hemorrhagic fevers; however, thromboembolic complications have received less attention. Hemorrhagic fever with renal syndrome (HFRS) is a mild viral hemorrhagic fever caused by Puumala hantavirus. We previously identified HFRS as a risk factor for myocardial infarction and stroke, but the risk for venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE), is unknown. Methods: Personal identity numbers from the Swedish HFRS database were cross-linked with the National Patient register to obtain information on all causes for hospitalization during 1964 to 2013. The self-controlled case series method was used to calculate the incidence rate ratio (IRR) for first VTE, DVT, and PE during 1998 to 2013. Results: From 7244 HFRS patients, there were 146 with a first VTE of which 74 were DVT and 78 were PE, and 6 patients had both DVT and PE. The overall risk for a VTE was significantly higher during the first 2 weeks following HFRS onset, with an IRR of 64.3 (95% confidence interval [CI], 36.3 114). The corresponding risk for a DVT was 45.9 (95% CI, 18-117.1) and for PE, 76.8 (95% CI, 37.1-159). Sex interacted significantly with the association between HFRS and VTE, with females having a higher risk compared with males. Conclusions: A significantly increased risk for VTE was found in the time period following HFRS onset. It is important to keep this in mind and monitor HFRS patients, and possibly other viral hemorrhagic fever patients, for early symptoms of VTE. PMID- 29020304 TI - Identification of a targeted and testable antiarrhythmic therapy for long-QT syndrome type 2 using a patient-specific cellular model. AB - Aims: Loss-of-function mutations in the hERG gene causes long-QT syndrome type 2 (LQT2), a condition associated with reduced IKr current. Four different mutation classes define the molecular mechanisms impairing hERG. Among them, Class 2 mutations determine hERG trafficking defects. Lumacaftor (LUM) is a drug acting on channel trafficking already successfully tested for cystic fibrosis and its safety profile is well known. We hypothesize that LUM might rescue also hERG trafficking defects in LQT2 and exert anti-arrhythmic effects. Methods and results: From five LQT2 patients, we generated lines of induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) harbouring Class 1 and 2 mutations. The effects of LUM on corrected field potential durations (cFPD) and calcium-handling irregularities were verified by multi electrode array and by calcium transients imaging, respectively. Molecular analysis was performed to clarify the mechanism of action of LUM on hERG trafficking and calcium handling. Long-QT syndrome type 2 induced pluripotent stem cell-derived cardiomyocytes mimicked the clinical phenotypes and showed both prolonged cFPD (grossly equivalent to the QT interval) and increased arrhythmias. Lumacaftor significantly shortened cFPD in Class 2 iPSC-CMs by correcting the hERG trafficking defect. Furthermore, LUM seemed to act also on calcium handling by reducing RyR2S2808 phosphorylation in both Class 1 and 2 iPSC-CMs. Conclusion: Lumacaftor, a drug already in clinical use, can rescue the pathological phenotype of LQT2 iPSC-CMs, particularly those derived from Class 2 mutated patients. Our results suggest that the use of LUM in LQT2 patients not protected by beta-blockers is feasible and may represent a novel therapeutic option. PMID- 29020305 TI - Reply to Lipcsey. PMID- 29020307 TI - Follow-up Blood Cultures in Gram-Negative Bacteremia: Are They Needed? AB - Background: Bloodstream infections remain a major cause of morbidity and mortality. Gram-negative bacilli (GNB) bacteremia is typically transient and usually resolves rapidly after the initiation of appropriate antibiotic therapy and source control. The optimal duration of treatment and utility of follow-up blood cultures (FUBC) have not been studied in detail. Currently, the management of gram-negative bacteremia is determined by clinical judgment. To investigate the value of repeat blood cultures, we analyzed 500 episodes of bacteremia to determine frequency of FUBC and identify risk factors for persistent bacteremia. Methods: Of 500 episodes of bacteremia, we retrospectively analyzed 383 (77%) that had at least 1 FUBC. We sought information regarding presumed source of bacteremia, antibiotic status at the time of FUBC, antibiotic susceptibility, presence of fever, comorbidities (intravenous central lines, urinary catheters, diabetes mellitus, AIDS, end-stage renal disease, and cirrhosis), need for intensive care, and mortality. Results: Antibiotic use did not affect the rate of positivity of FUBC, unless bacteria were not sensitive to empiric antibiotic. Fever on the day of FUBC was associated with higher rates of positive FUBC for gram-positive cocci (GPC) but not GNB. Mortality and care in the intensive care unit were not associated with positive FUBC. Seventeen FUBC and 5 FUBC were drawn for GNB and GPC to yield 1 positive result. Conclusions: FUBC added little value in the management of GNB bacteremia. Unrestrained use of blood cultures has serious implications for patients including increased healthcare costs, longer hospital stays, unnecessary consultations, and inappropriate use of antibiotics. PMID- 29020306 TI - Lithium and Tamoxifen Modulate Behavior and Protein Kinase C Activity in the Animal Model of Mania Induced by Ouabain. AB - Background: The intracerebroventricular injection of ouabain, a specific inhibitor of the Na+/K+-adenosine-triphosphatase (Na+/K+-ATPase) enzyme, induces hyperactivity in rats in a putative animal model of mania. Several evidences have suggested that the protein kinase C signaling pathway is involved in bipolar disorder. In addition, it is known that protein kinase C inhibitors, such as lithium and tamoxifen, are effective in treating acute mania. Methods: In the present study, we investigated the effects of lithium and tamoxifen on the protein kinase C signaling pathway in the frontal cortex and hippocampus of rats submitted to the animal model of mania induced by ouabain. We showed that ouabain induced hyperlocomotion in the rats. Results: Ouabain increased the protein kinase C activity and the protein kinase C and MARCKS phosphorylation in frontal cortex and hippocampus of rats. Lithium and tamoxifen reversed the behavioral and protein kinase C pathway changes induced by ouabain. These findings indicate that the Na+/K+-ATPase inhibition can lead to protein kinase C alteration. Conclusions: The present study showed that lithium and tamoxifen modulate changes in the behavior and protein kinase C signalling pathway alterations induced by ouabain, underlining the need for more studies of protein kinase C as a possible target for treatment of bipolar disorder. PMID- 29020309 TI - Colistin Area Under the Time-Concentration in Children Treated With Intravenous Loading Dose and Maintenance Therapy. PMID- 29020308 TI - Management of Latent Tuberculosis Infection Among Healthcare Workers: 10-Year Experience at a Single Center. AB - Background: The risk of infection with Mycobacterium tuberculosis among healthcare workers (HCWs) is estimated to be higher than the general population. However, HCW acceptance and compliance with available latent tuberculosis infection (LTBI) treatment regimens has been problematic. Recently, regimens have become available that might improve HCW acceptance and compliance with LTBI treatment. Methods: A retrospective single-center review of Employee Health and Wellness Services records of all HCWs diagnosed with LTBI was conducted. HCWs diagnosed with LTBI were offered 9-month isoniazid (INH), 4-month rifampin (RIF), weekly rifapentine/isoniazid (RPT/INH) for 12 weeks, or no treatment. Acceptance, completion rates, and side effects were reported for each regimen. Comparisons of regimens were assessed using Fisher exact test. Results: Between 2005 and 2014, 363 of 927 (39%) HCWs diagnosed with LTBI accepted treatment. Of 363, 202 chose INH, 106 RIF, and 55 RPT/INH. Completion rates for each regimen were 58%, 80%, and 87%, respectively. HCWs were significantly more likely to have completed treatment with RIF (P < .0001) or RPT/INH (P < .0001) than INH. Rates of discontinuation owing to side effects were 35% for INH, 21% for RIF, and 10% for RPT/INH. Discontinuation of therapy due to side effects was significantly more frequent in the INH than the RPT/INH group (P = .0042). Conclusions: Completion of RIF and RPT/INH for LTBI in an HCW population is more likely than INH. Rates of discontinuation due to side effects were lower among those taking RPT/INH. Shorter LTBI treatment regimens should be more widely considered for HCWs in the United States. PMID- 29020311 TI - Noncarbapenem beta-Lactams for the Treatment of Extended-Spectrum beta-Lactamase Infections: What Are the Remaining Drugs Outside the United States? PMID- 29020310 TI - Levofloxacin Prophylaxis During Induction Therapy for Pediatric Acute Lymphoblastic Leukemia. AB - Background: Infection is the most important cause of treatment-related morbidity and mortality in pediatric patients treated for acute lymphoblastic leukemia (ALL). Although routine in adults with leukemia, antibacterial prophylaxis is controversial in pediatrics because of insufficient evidence for its efficacy or antibiotic choice and concerns about promoting antibiotic resistance and Clostridium difficile infection. Methods: This was a single-center, observational cohort study of patients with newly diagnosed ALL, comparing prospectively collected infection-related outcomes in patients who received no prophylaxis, levofloxacin prophylaxis, or other prophylaxis during induction therapy on the total XVI study. A propensity score-weighted logistic regression model was used to adjust for confounders. Results: Of 344 included patients, 173 received no prophylaxis, 69 received levofloxacin prophylaxis, and 102 received other prophylaxis regimens. Patients receiving prophylaxis had longer duration of neutropenia. Prophylaxis reduced the odds of febrile neutropenia, likely bacterial infection, and bloodstream infection by >=70%. Levofloxacin prophylaxis alone reduced these infections, but it also reduced cephalosporin, aminoglycoside, and vancomycin exposure and reduced the odds of C. difficile infection by >95%. No increase in breakthrough infections with antibiotic resistant organisms was seen, but this cannot be excluded. Conclusions: This is the largest study to date of antibacterial prophylaxis during induction therapy for pediatric ALL and the first to include a broad-spectrum fluoroquinolone. Prophylaxis prevented febrile neutropenia and systemic infection. Levofloxacin prophylaxis also minimized the use of treatment antibiotics and drastically reduced C. difficile infection. Although long-term antibiotic-resistance monitoring is needed, these data support using targeted prophylaxis with levofloxacin in children undergoing induction chemotherapy for ALL. Clinical Trials Registration: NCT00549848. PMID- 29020313 TI - Trends in Invasive Pneumococcal Disease in Cancer Patients After the Introduction of 7-valent Pneumococcal Conjugate Vaccine: A 20-year Longitudinal Study at a Major Urban Cancer Center. AB - Background: Rates of invasive pneumococcal disease (IPD) declined since routine childhood immunization with the 7-valent pneumococcal conjugate vaccine (PCV7) in 2000. We studied the impact of PCV7 on the incidence of IPD in cancer patients. Methods: This was a retrospective analysis of adult and pediatric patients treated at Memorial Sloan Kettering Cancer Center from 1992 to 2012. Recovery of Streptococcus pneumoniae from a sterile site defined IPD. IPD incidence was calculated as cases per 1,000 unique patient-visits per year (UPV). IPD incidence was calculated for the periods: "before PCV7" (1992-2000), "after PCV7" (2001 2010) and "after PCV13" (2011-2012). Results: Of 343 IPD cases, 165, 155, and 23 cases occurred "before PCV7," "after PCV7" and "after PCV13" respectively. The IPD incidence declined from 0.43 "before PCV7" to 0.17 "after PCV7" (95% confidence interval [CI]: 0.33-0.46, P < .001) and 0.11 "after PCV13" (95% CI: 0.42-0.96, P = .004). Adults with hematologic malignancies and children had the highest incidence. In patients 1-4 years old, the incidence declined from 11.2 "before PCV7" to 2.38 "after PCV7" (79% decrease, 95% CI: 0.1-0.4, P < .001). In patients with hematologic malignancies, the incidence declined from 2.55 "before PCV7" to 0.92 "after PCV7" (64% decrease, 95% CI: 0.27-0.47, P < .001). Conclusions: The incidence of IPD among cancer patients sharply declined after introduction of PCV7; especially in high risk groups. The decline in adults suggests an indirect effect from PCV7 childhood vaccination. PMID- 29020312 TI - Explaining the impact of poverty on old-age frailty in Europe: material, psychosocial and behavioural factors. AB - Background: Previous research found poverty to be associated with adverse health outcomes among older adults but the factors that translate low economic resources into poor physical health are not well understood. The goal of this analysis was to assess the impact of material, psychosocial, and behavioural factors as well as education in explaining the poverty-health link. Methods: In total, 28 360 observations from 11 390 community-dwelling respondents (65+) in the Survey of Health, Ageing and Retirement in Europe (2004-13, 10 countries) were analysed. Multilevel growth curve models were used to assess the impact of combined income and asset poverty risk on old-age frailty (frailty index) and associated pathway variables. Results: In total, 61.8% of the variation of poverty risk on frailty level was explained by direct and indirect effects. Results stress the role of material and particularly psychosocial factors such as perceived control and social isolation, whereas the role of health behaviour was negligible. Conclusion: We suggest to strengthen social policy and public health efforts in order to fight poverty and its deleterious health effects from early age on as well as to broaden the scope of interventions with regard to psychosocial factors. PMID- 29020315 TI - Performance of Rapid Diagnostic Testing in Patients with Suspected Malaria in Cambodia, a Low-Endemicity Country Aiming for Malaria Elimination. PMID- 29020316 TI - Machine Learning for Healthcare: On the Verge of a Major Shift in Healthcare Epidemiology. AB - The increasing availability of electronic health data presents a major opportunity in healthcare for both discovery and practical applications to improve healthcare. However, for healthcare epidemiologists to best use these data, computational techniques that can handle large complex datasets are required. Machine learning (ML), the study of tools and methods for identifying patterns in data, can help. The appropriate application of ML to these data promises to transform patient risk stratification broadly in the field of medicine and especially in infectious diseases. This, in turn, could lead to targeted interventions that reduce the spread of healthcare-associated pathogens. In this review, we begin with an introduction to the basics of ML. We then move on to discuss how ML can transform healthcare epidemiology, providing examples of successful applications. Finally, we present special considerations for those healthcare epidemiologists who want to use and apply ML. PMID- 29020314 TI - Improved outcomes in patients with ST-elevation myocardial infarction during the last 20 years are related to implementation of evidence-based treatments: experiences from the SWEDEHEART registry 1995-2014. AB - Aims: Impact of changes of treatments on outcomes in ST-elevation myocardial infarction (STEMI) patients in real-life health care has not been documented. Methods and results: All STEMI cases (n = 105.674) registered in the nation-wide SWEDEHEART registry between 1995 and 2014 were included and followed for fatal and non-fatal outcomes for up to 20 years. Most changes in treatment and outcomes occurred from 1994 to 2008. Evidence-based treatments increased: reperfusion from 66.2 to 81.7%; primary percutaneous coronary intervention: 4.5 to 78.0%; dual antiplatelet therapy from 0 to 89.6%; statin: 14.1 to 93.6%; beta-blocker: 78.2 to 91.0%, and angiotensin-converting-enzyme/angiotensin-2-receptor inhibitors: 40.8 to 85.2% (P-value for-trend <0.001 for all). One-year mortality decreased from 22.1 to 14.1%. Standardized incidence ratio compared with the general population decreased from 5.54 to 3.74 (P < 0.001). Cardiovascular (CV) death decreased from 20.1 to 11.1%, myocardial infarction (MI) from 11.5 to 5.8%; stroke from 2.9 to 2.1%; heart failure from 7.1 to 6.2%. After standardization for differences in demography and baseline characteristics, the change of 1-year CV-death or MI corresponded to a linear trend of 0.915 (95% confidence interval: 0.906-0.923) per 2-year period which no longer was significant, 0.997 (0.984 1.009), after adjustment for changes in treatment. The changes in treatment and outcomes were most pronounced from 1994 to 2008. Conclusion: Gradual implementation of new and established evidence-based treatments in STEMI patients during the last 20 years has been associated with prolonged survival and lower risk of recurrent ischaemic events, although a plateauing is seen since around 2008. PMID- 29020318 TI - Reply to Rossi et al. PMID- 29020320 TI - Corrigendum to: 'Clinical outcomes of state-of-the-art percutaneous coronary revascularization in patients with de novo three vessel disease: 1-year results of the SYNTAX II study. PMID- 29020317 TI - Cost-Effectiveness of One-Time Hepatitis C Screening Strategies Among Adolescents and Young Adults in Primary Care Settings. AB - Background: High hepatitis C virus (HCV) rates have been reported in young people who inject drugs (PWID). We evaluated the clinical benefit and cost-effectiveness of testing among youth seen in communities with a high overall number of reported HCV cases. Methods: We developed a decision analytic model to project quality adjusted life years (QALYs), costs (2016 US$), and incremental cost-effectiveness ratios (ICERs) of 9 strategies for 1-time testing among 15- to 30-year-olds seen at urban community health centers. Strategies differed in 3 ways: targeted vs routine testing, rapid finger stick vs standard venipuncture, and ordered by physician vs by counselor/tester using standing orders. We performed deterministic and probabilistic sensitivity analyses (PSA) to evaluate uncertainty. Results: Compared to targeted risk-based testing (current standard of care), routine testing increased the lifetime medical cost by $80 and discounted QALYs by 0.0013 per person. Across all strategies, rapid testing provided higher QALYs at a lower cost per QALY gained and was always preferred. Counselor-initiated routine rapid testing was associated with an ICER of $71000/QALY gained. Results were sensitive to offer and result receipt rates. Counselor-initiated routine rapid testing was cost-effective (ICER <$100000/QALY) unless the prevalence of PWID was <0.59%, HCV prevalence among PWID was <16%, reinfection rate was >26 cases per 100 person-years, or reflex confirmatory testing followed all reactive venipuncture diagnostics. In PSA, routine rapid testing was the optimal strategy in 90% of simulations. Conclusions: Routine rapid HCV testing among 15- to 30-year-olds may be cost-effective when the prevalence of PWID is >0.59%. PMID- 29020319 TI - Tuberculosis Case Finding With Combined Rapid Point-of-Care Assays (Xpert MTB/RIF and Determine TB LAM) in HIV-Positive Individuals Starting Antiretroviral Therapy in Mozambique. AB - Background: Tuberculosis is a major health concern in several countries, and effective diagnostic algorithms for use in human immunodeficiency virus (HIV) positive patients are urgently needed. Methods: At prescription of antiretroviral therapy, all patients in 3 Mozambican health centers were screened for tuberculosis, with a combined approach: World Health Organization (WHO) 4-symptom screening (fever, cough, night sweats, and weight loss), a rapid test detecting mycobacterial lipoarabinomannan in urine (Determine TB LAM), and a molecular assay performed on a sputum sample (Xpert MTB/RIF; repeated if first result was negative). Patients with positive LAM or Xpert MTB/RIF results were referred for tuberculosis treatment. Results: Among 972 patients with a complete diagnostic algorithm (58.5% female; median CD4 cell count, 278/MUL; WHO HIV stage I, 66.8%), 98 (10.1%) tested positive with Xpert (90, 9.3%) or LAM (34, 3.5%) assays. Compared with a single-test Xpert strategy, dual Xpert tests improved case finding by 21.6%, LAM testing alone improved it by 13.5%, and dual Xpert tests plus LAM testing improved it by 32.4%. Rifampicin resistance in Xpert-positive patients was infrequent (2.5%). Among patients with positive results, 22 of 98 (22.4%) had no symptoms at WHO 4-symptom screening. Patients with tuberculosis diagnosed had significantly lower CD4 cell counts and hemoglobin levels, more advanced WHO stage, and higher HIV RNA levels. Fifteen (15.3%) did not start tuberculosis treatment, mostly owing to rapidly deteriorating clinical conditions or logistical constraints. The median interval between start of the diagnostic algorithm and start of tuberculosis treatment was 7 days. Conclusions: The prevalence of tuberculosis among Mozambican HIV-positive patients starting antiretroviral therapy was 10%, with limited rifampicin resistance. Use of combined point-of-care tests increased case finding, with a short time to treatment. Interventions are needed to remove logistical barriers and prevent presentation in very advanced HIV/tuberculosis disease. PMID- 29020321 TI - Comparison of a Novel Human Rabies Monoclonal Antibody to Human Rabies Immunoglobulin for Postexposure Prophylaxis: A Phase 2/3, Randomized, Single Blind, Noninferiority, Controlled Study. AB - Background: Lack of access to rabies immunoglobulin (RIG) contributes to high rabies mortality. A recombinant human monoclonal antibody (SII RMAb) was tested in a postexposure prophylaxis (PEP) regimen in comparison with a human RIG (HRIG) containing PEP regimen. Methods: This was a phase 2/3, randomized, single-blind, noninferiority study conducted in 200 participants with World Health Organization category III suspected rabies exposures. Participants received either SII RMAb or HRIG (1:1 ratio) in wounds and, if required, intramuscularly on day 0, along with 5 doses of rabies vaccine intramuscualarly on days 0, 3, 7, 14 and 28. The primary endpoint was the ratio of the day 14 geometric mean concentration (GMC) of rabies virus neutralizing activity (RVNA) as measured by rapid fluorescent focus inhibition test for SII RMAb recipients relative to HRIG recipients. Results: One hundred ninety-nine participants received SII RMAb (n = 101) or HRIG (n = 98) and at least 1 dose of vaccine. The day 14 GMC ratio of RVNA for the SII RMAb group relative to the HRIG group was 4.23 (96.9018% confidence interval [CI], 2.59-6.94) with a GMC of of 24.90 IU/mL (95% CI, 18.94-32.74) for SII RMAb recipients and 5.88 IU/mL (95% CI, 4.11-8.41) for HRIG recipients. The majority of local injection site and systemic adverse reactions reported from both groups were mild to moderate in severity. Conclusions: A PEP regimen containing SII RMAb was safe and demonstrated noninferiority to HRIG PEP in RVNA production. The novel monoclonal potentially offers a safe and potent alternative for the passive component of PEP and could significantly improve the management of bites from suspected rabid animals. Clincical Trials Registration: CTRI/2012/05/002709. PMID- 29020322 TI - Trends in Methicillin-Resistant Staphylococcus aureus Hospitalizations in the United States, 2010-2014. AB - Data from the National Inpatient Sample show that the decrease in hospitalizations related to methicillin-resistant Staphylococcus aureus (MRSA) infections between 2010 and 2014 primarily reflected declines in skin and soft tissue infections. Hospitalizations related to invasive MRSA remained largely unchanged. PMID- 29020323 TI - Corticosteroids in Patients Hospitalized With Community-Acquired Pneumonia: Systematic Review and Individual Patient Data Metaanalysis. AB - Background: Our aim was to evaluate the benefits and harms of adjunctive corticosteroids in adults hospitalized with community-acquired pneumonia (CAP) using individual patient data from randomized, placebo-controlled trials and to explore subgroup differences. Methods: We systematically searched Medline, Embase, Cochrane Central, and trial registers (all through July 2017). Data from 1506 individual patients in 6 trials were analyzed using uniform outcome definitions. We investigated prespecified effect modifiers using multivariable hierarchical regression, adjusting for pneumonia severity, age, and clustering effects. Results: Within 30 days of randomization, 37 of 748 patients (5.0%) assigned to corticosteroids and 45 of 758 patients (5.9%) assigned to placebo died (adjusted odds ratio [aOR], 0.75; 95% confidence interval [CI], .46 to 1.21; P = .24). Time to clinical stability and length of hospital stay were reduced by approximately 1 day with corticosteroids (-1.03 days; 95% CI, -1.62 to -.43; P = .001 and -1.15 days; 95% CI, -1.75 to -.55; P < .001, respectively). More patients with corticosteroids had hyperglycemia (160 [22.1%] vs 88 [12.0%]; aOR, 2.15; 95% CI, 1.60 to 2.90; P < .001) and CAP-related rehospitalization (33 [5.0%] vs 18 [2.7%]; aOR, 1.85; 95% CI, 1.03 to 3.32; P = .04). We did not find significant effect modification by CAP severity or degree of inflammation. Conclusions: Adjunct corticosteroids for patients hospitalized with CAP reduce time to clinical stability and length of hospital stay by approximately 1 day without a significant effect on overall mortality but with an increased risk for CAP-related rehospitalization and hyperglycemia. PMID- 29020324 TI - Mumps Outbreak in a Highly Vaccinated University-Affiliated Setting Before and After a Measles-Mumps-Rubella Vaccination Campaign-Iowa, July 2015-May 2016. AB - Background: In response to a mumps outbreak at the University of Iowa and surrounding community, university, state, and local health officials implemented a vaccination campaign targeting students <25 years of age with an additional dose of measles-mumps-rubella (MMR) vaccine. More than 4700 vaccine campaign doses were administered; 97% were documented third doses. We describe the epidemiology of the outbreak before and after the campaign, focusing on cases in university students. Methods: Mumps cases were identified from reportable disease databases and university health system records. Detailed information on student cases was obtained from interviews, medical chart abstractions, university and state vaccination records, and state public health laboratory results. Pre- and postcampaign incidence among students, university faculty/staff, and community members <25 vs >=25 years old were compared using Fisher exact test. Multivariable regression modeling was performed to identify variables associated with a positive mumps polymerase chain reaction test. Results: Of 453 cases in the county, 301 (66%) occurred in university students. Student cases were primarily undergraduates (90%) and highly vaccinated (86% had 2 MMR doses, and 12% had 3 MMR doses). Fewer cases occurred in students after the campaign (75 [25%]) than before (226 [75%]). Cases in the target group (students <25 years of age) declined 9% postcampaign (P=.01). A positive mumps polymerase chain reaction test was associated with the presence of parotitis and early sample collection, and inversely associated with recent receipt of MMR vaccine. Conclusions: Following a large additional dose MMR vaccination campaign, fewer mumps cases occurred overall and in the target population. PMID- 29020325 TI - Adapting Reactive Case Detection Strategies for falciparum Malaria in a Low Transmission Area in Cambodia. AB - Reactive case detection around falciparum malaria cases in Cambodia presents a low output. We improved it by including individuals occupationally coexposed with index case patients and using polymerase chain reaction-based diagnosis. The positivity rate increased from 0.16% to 3.9%. PMID- 29020326 TI - Empagliflozin across the stages of diabetic heart disease. PMID- 29020327 TI - Cognitive changes in prevalent and incident cardiovascular disease: a 12-year follow-up in the Maastricht Aging Study (MAAS). AB - Aims: Cardiovascular disease (CVD) has been suggested to accelerate cognitive decline and to be a risk factor for dementia, but still little is known about the cognitive course after a first cardiovascular event. Therefore, the present study aims to investigate the cognitive trajectories in both prevalent and incident CVD over a 12-year time period in the general population. Methods and results: Cognitively healthy participants (age 24-82 years, n = 1823) of a prospective cohort study were serially assessed at baseline, 6 and 12 years. Verbal memory, executive function, and information processing speed were analysed in adults with prevalent, incident, and no CVD. Random effects models were used to test the association between CVD and change in cognitive function over time. At baseline, participants with prevalent CVD showed more decline in memory and information processing speed than healthy controls. Participants with incident CVD also showed more decline in these cognitive domains, but this was only significant in the follow-up period from 6 to 12 years. Associations were more pronounced in participants aged younger than 65 years at baseline, and in sub-analyses with angina pectoris or myocardial infarction as the most prevalent CVD conditions. Conclusion: Prevalent and incident CVD predict cognitive decline in middle-aged individuals. Findings for incident CVD suggest that the onset of decline is linked in time with the vascular event itself. Timely CVD management may delay the onset of decline. PMID- 29020328 TI - Early Fecal Microbiota Transplantation Improves Survival in Severe Clostridium difficile Infections. AB - Background: Severe Clostridium difficile infections (CDIs) are associated with a high mortality rate despite medical and/or surgical treatment. Fecal microbiota transplantation (FMT) prevents recurrences, but its effect on survival has been shown only in patients with O27 ribotype CDI. Here, we investigated whether early FMT could improve survival in hospitalized CDI patients, particularly those with severe infection. Methods: We performed a retrospective cohort study between May 2013 and April 2016 at the infectious diseases department of the North University Hospital of Marseille, France. Patients received either medical treatment alone or treatment with early FMT. The primary outcome was the 3-month mortality rate. Results: A total of 111 patients were included: 66 in the FMT group and 45 in the non-FMT group. No patient underwent surgery. The O27 ribotype (odds ratio [OR], 3.64 [95% confidence interval {CI}, 1.05- 12.6], P = .04), severe CDI (OR, 9.62 [95% CI, 2.16-42.8], P = .003), and FMT (OR, 0.13 [95% CI, .04-.44], P = .001) were independent predictors of 3-month mortality. FMT improved survival in severe cases (OR, 0.08 [95% CI, .016-.34], P = .001) but not in nonsevere cases (OR, 1.07 [95% CI, .02-56.3], P = .97), independent of age, sex, comorbidities (Charlson score), and ribotype. The number of severe patients who needed to be treated to save 1 life at 3 months was 2. Conclusions: Early FMT dramatically reduces mortality and should be proposed as a first-line treatment for severe CDI. Further studies are needed to clarify complications and contraindications. Surgery should be reassessed in this context. PMID- 29020331 TI - Mechanical circulatory support: harm without benefit? Fascinated by devices, cardiologists may lose common sense. PMID- 29020330 TI - Enhanced Sexually Transmitted Infection Screening for Mycoplasma genitalium in Human Immunodeficiency Virus -Infected US Air Force Personnel. AB - Three-site genital and extragenital screening for Mycoplasma genitalium in 102 asymptomatic Air Force members with human immunodeficiency virus (HIV) infection revealed 19 (18.6%) cases of M. genitalium, commonly (58%) in rectal samples. Because M. genitalium is associated with both HIV acquisition and transmission, these findings suggest that it should be included in routine screening of HIV infected individuals for sexually transmitted infections. PMID- 29020332 TI - Dependency of Vaccine Efficacy on Preexposure and Age: A Closer Look at a Tetravalent Dengue Vaccine. AB - Background: A recombinant, live-attenuated, tetravalent dengue vaccine (CYD-TDV) was licensed for children aged >=9 years in a few countries, but the dependence of vaccine efficacy on baseline immunity status and age groups has not been fully characterized. Methods: Combining the 2 phase 3 trials CYD14 and CYD15, we estimated the vaccine efficacy for each of the 4 serotypes of dengue virus (DENV), as well as all serotypes combined, simultaneously stratified by baseline immunity status and age group, while accounting for uncertainty in the baseline immunity status of subjects. Results: Baseline seropositive subjects showed high efficacy for all serotypes: 70.2% (95% confidence interval [CI], 57.4%-80.1%) for dengue serotype 1 (DENV-1), 67.9% (95% CI, 49.9%-82.0%) for DENV-2, 77.5% (95% CI, 64.3%-90.2%) for DENV-3, 89.9% (95% CI, 79.8%-99.9%) for DENV-4, and 75.4% (95% CI, 68.3%-81.6%) overall. In contrast, baseline seronegative subjects showed moderate efficacy against DENV-4 (51.2% [95% CI, 20.0%-72.8%]) but no significant efficacy against other serotypes. Among seropositive children, the overall efficacy tended to increase with age: 35.9% (95% CI, -7.6% to 69.3%) for children <=5 years old, 65.6% (95% CI, 40.3%-84.2%) for those 6-8 years old, 73.4% (95% CI, 62.6%-82.1%) for those 9-11 years old, and 80.6% (95% CI, 72.9%-87.3%) for those 12 years or older. Conclusions: The CYD-TDV vaccine was highly efficacious for all dengue serotypes among children aged >5 years who have acquired baseline immunity from previous exposure. Increasing vaccine efficacy with age was not fully explained by increasing prevalence of baseline immunity with age. PMID- 29020329 TI - Vitamin D3 Supplementation Increases Spine Bone Mineral Density in Adolescents and Young Adults With Human Immunodeficiency Virus Infection Being Treated With Tenofovir Disoproxil Fumarate: A Randomized, Placebo-Controlled Trial. AB - Background: Tenofovir disoproxil fumarate (TDF) decreases bone mineral density (BMD). We hypothesized that vitamin D3 (VITD3) would increase BMD in youth receiving TDF. Methods: This was a randomized, double-blind, placebo-controlled trial of directly observed VITD3 vs placebo every 4 weeks for 48 weeks in youth aged 16-24 years with HIV, RNA load <200 copies/mL, taking TDF-containing combination antiretroviral therapy (TDF-cART) for >=180 days. Participants (N = 214) received a daily multivitamin containing VITD3 400 IU and calcium 162 mg, plus monthly randomized VITD3 50000 IU (n = 109) or placebo (n = 105). Outcome was change from baseline to week 48 in lumbar spine BMD (LSBMD). Data presented are median (Q1, Q3). Results: Participants were aged 22.0 (21.0, 23.0) years, 84% were male, and 74% were black/African American. At baseline, 62% had 25-hydroxy vitamin D (25-OHD) <20 ng/mL. Multivitamin adherence was 49% (29%, 69%), and VITD3/placebo adherence 100% (100%, 100%). Vitamin D intake was 2020 (1914, 2168) and 284 (179, 394) IU/day, and serum 25-OHD concentration was 36.9 (30.5, 42.4) and 20.6 (14.4, 25.8) ng/mL at 48 weeks in VITD3 and placebo groups, respectively (P < .001). From baseline to week 48, LSBMD increased by 1.15% (-0.75% to 2.74%) in the VITD3 group (n = 99; P < .001) and 0.09% (-1.49% to 2.61%) in the placebo group (n = 89; P = .25), without between-group difference (P = .12). VITD3 group changes occurred with baseline 25-OHD <20 ng/mL (1.17% [-.82% to 2.90%]; P = .004) and >=20 ng/mL (0.93% [-.26% to 2.15%]; P = .033). Conclusions: For youth taking TDF-cART, LSBMD increased through 48 weeks with VITD3 plus multivitamin, but not with placebo plus multivitamin, independent of baseline vitamin D status. Clinical Trials Registration: NCT01751646. PMID- 29020333 TI - Thrombo-embolic prevention after transcatheter aortic valve implantation. AB - Transcatheter aortic valve implantation (TAVI) has emerged as a valuable treatment alternative to surgical aortic valve replacement among patients with symptomatic aortic stenosis at increased surgical risk. The rapid technological evolution from early to current-generation TAVI systems with low-profile delivery catheters, bioprosthetic valves with proven midterm durability, and improved positioning and retrieval features have made important contributions to the widespread clinical use of this minimal invasive therapy. Although peri procedural and long-term thrombotic and bleeding events after TAVI remain a relevant concern, the optimal antithrombotic strategy and duration to mitigate these risks remain unclear. This review provides an overview of recent insights in this field, and highlights current and future antithrombotic trials focusing on optimizing outcomes in patients undergoing TAVI. PMID- 29020334 TI - Lumbar Puncture Performed Promptly or After Neuroimaging in Acute Bacterial Meningitis in Adults: A Prospective National Cohort Study Evaluating Different Guidelines. AB - Background: Early treatment is pivotal for favorable outcome in acute bacterial meningitis (ABM). Lumbar puncture (LP) is the diagnostic key. The aim was to evaluate the effect on outcome of adherence to European Society of Clinical Microbiology and Infectious Diseases (ESCMID), Infectious Diseases Society of America (IDSA), and Swedish guidelines regarding neuroimaging before LP. Methods: The cohort comprised 815 adult ABM patients in Sweden registered prospectively between 2008 and 2015. Primary endpoint was in-hospital mortality and secondary endpoint was favorable outcome at 2-6 months of follow-up. Results: Indications for neuroimaging before LP existed in 7%, 32%, and 65% according to Swedish, ESCMID, and IDSA guidelines, respectively. The adjusted odds ratio (aOR) was 0.48 (95% confidence interval [CI], .26-.89) for mortality and 1.52 (95% CI, 1.08 2.12) for favorable outcome if Swedish guidelines were followed. ESCMID guideline adherence resulted in aOR of 0.68 (95% CI, .38-1.23) for mortality and 1.05 (95% CI, .75-1.47) for favorable outcome. Following IDSA recommendations resulted in aOR of 1.09 (95% CI, .61-1.95) for mortality and 0.59 (95% CI, .42-.82) for favorable outcome. Performing prompt vs neuroimaging-preceded LP was associated with aOR of 0.38 (95% CI, .18-.77) for mortality and 2.11 (95% CI, 1.47-3.00) for favorable outcome. The beneficial effect of prompt LP was observed regardless of mental status and immunosuppression. Conclusions: Adherence to Swedish guidelines in ABM is associated with decreased mortality and increased favorable outcome in contrast to adherence to ESCMID or IDSA recommendations. Our findings support that impaired mental status and immunocompromised state should not be considered indications for neuroimaging before LP in patients with suspected ABM. PMID- 29020336 TI - Corrigendum to: Rhythm for Life, in Germany. PMID- 29020335 TI - Human Immunodeficiency Virus (HIV) Drug Resistance in African Infants and Young Children Newly Diagnosed With HIV: A Multicountry Analysis. AB - Background: Programs for the prevention of mother-to-child transmission (PMTCT) of human immunodeficiency virus (HIV) have been scaled up in many low- and middle income countries. However, HIV drug resistance (HIVDR) data among HIV-1-infected young children remain limited. Methods: Surveys of pretreatment HIVDR among children aged <18 months who were diagnosed with HIV through early infant diagnosis were conducted in 5 sub-Saharan African countries (Mozambique, Swaziland, South Africa, Uganda, and Zimbabwe) between 2011 and 2014 following World Health Organization (WHO) guidance. Deidentified demographic and clinical data were used to explore risk factors associated with nonnucleoside reverse transcriptase inhibitor (NNRTI) resistance. Results: Among the 1450 genotypes analyzed, 1048 had accompanying demographic and clinical data. The median age of children was 4 months; 50.4% were female. HIV from 54.1% showed resistance to 1 or more antiretroviral (ARV) drugs, with 53.0% and 8.8% having resistance to 1 or more NNRTI or nucleoside reverse transcriptase inhibitors, respectively. NNRTI resistance was particularly high in children exposed to ARV drugs through PMTCT; adjusted odds ratios were 1.8 (95% confidence interval [CI], 1.3-2.6) for maternal exposure only and 2.4 (CI, 1.6-3.6) for neonatal exposure only. Conclusions: Protease inhibitor-based regimens in children aged <3 years are currently recommended by WHO, but the implementation of this recommendation is suboptimal. These results reinforce the urgent need to overcome barriers to scaling up pediatric protease inhibitor-based regimens in sub-Saharan Africa and underscore the need to accelerate the study and approval of integrase inhibitors for use in young children. PMID- 29020337 TI - Refining the prognostic impact of functional mitral regurgitation in chronic heart failure. AB - Aims: Significant efforts are currently undertaken to reduce functional mitral regurgitation (FMR) in patients with chronic heart failure in the hope to improve prognosis. We aimed to assess the prognostic impact of FMR in heart failure with reduced ejection fraction (HFrEF) under optimal medical therapy (OMT) and various conditions of HFrEF. We further intended to identify a heart failure phenotype, where FMR is most likely a driving force and not a mere bystander of the disease. Methods and results: We prospectively included 576 consecutive HFrEF patients into our long-term observational study. Functional [i.e. New York Heart Association (NYHA) class], echocardiographic, invasive haemodynamic, and biochemical (i.e. NT-proBNP, MR-proANP, MR-proADM, CT-proET-1, copeptin) measurements were performed at baseline. During a median follow-up of 62 months (interquartile range 52-76), 47% of patients died. Severe FMR was a significant predictor of mortality [hazard ratio (HR) 1.76, 95% confidence interval (CI) 1.34 2.30; P < 0.001], independent of clinical (adjusted HR 1.61, 95% CI 1.22-2.12; P = 0.001), and echocardiographic (adjusted HR 1.46, 95% CI 1.09-1.94; P = 0.01) confounders, OMT (adjusted HR 1.81, 95% CI 1.25-2.63; P = 0.002), and neurohumoral activation (adjusted HR 1.38, 95% CI 1.03-1.84; P = 0.03). Subanalysis revealed that severe FMR was associated with poor outcome in an intermediate-failure phenotype of HFrEF i.e. patients with NYHA class II (adjusted HR 2.17, 95% CI 1.07-4.44; P = 0.03) and III (adjusted HR 1.80, 95% CI 1.17-2.77; P = 0.008), moderately reduced left ventricular function (adjusted HR 2.37, 95% CI 1.36-4.12; P = 0.002), and within the second quartile (871-2360 pg/mL) of NT-proBNP (adjusted HR 2.16, 95% CI 1.22-3.86; P = 0.009). Conclusion: In a patient cohort under OMT, the adverse prognostic impact of FMR is given predominantly in a sub-cohort of a specific intermediate-failure phenotype-well defined functionally, haemodynamically, biochemically, and morphologically. PMID- 29020338 TI - Is Moderate Alcohol Consumption Safe for Human Immunodeficiency Virus/Hepatitis C Virus-Coinfected Women? PMID- 29020339 TI - Use of Viral Load as a Surrogate Marker in Clinical Studies of Cytomegalovirus in Solid Organ Transplantation: A Systematic Review and Meta-analysis. AB - Symptomatic cytomegalovirus (CMV) disease has been the standard endpoint for clinical trials in organ transplant recipients. Viral load may be a more relevant endpoint due to low frequency of disease. We performed a meta-analysis and systematic review of the literature. We found several lines of evidence to support the validity of viral load as an appropriate surrogate end-point, including the following: (1) viral loads in CMV disease are significantly greater than in asymptomatic viremia (odds ratio, 9.3 95% confidence interval, 4.6-19.3); (2) kinetics of viral replication are strongly associated with progression to disease; (3) pooled incidence of CMV viremia and disease is significantly lower during prophylaxis compared with the full patient follow-up period (viremia incidence: 3.2% vs 34.3%; P < .001) (disease incidence: 1.1% vs 13.0%; P < .001); (4) treatment of viremia prevented disease; and (5) viral load decline correlated with symptom resolution. Based on the analysis, we conclude that CMV load is an appropriate surrogate endpoint for CMV trials in organ transplant recipients. PMID- 29020340 TI - Relationship Between Viremia and Specific Organ Damage in Ebola Patients: A Cohort Study. AB - Background: Pathogenesis of Ebola virus disease remains poorly understood. We used concomitant determination of routine laboratory biomarkers and Ebola viremia to explore the potential role of viral replication in specific organ damage. Methods: We recruited patients with detectable Ebola viremia admitted to the EMERGENCY Organizzazione Non Governativa Organizzazione Non Lucrativa di Utilita Sociale (ONG ONLUS) Ebola Treatment Center in Sierra Leone. Repeated measure of Ebola viremia, alanine aminotransferase (ALT), aspartate aminotransferase (AST), bilirubin, creatine phosphokinase (CPK), lactate dehydrogenase (LDH), activated prothrombin time (aPTT), international normalized ratio (INR), creatinine, and blood urea nitrogen (BUN) were recorded. Patients were followed up from admission until death or discharge. Results: One hundred patients (49 survivors and 51 nonsurvivors) were included in the analysis. Unadjusted analysis to compare survivors and nonsurvivors provided evidence that all biomarkers were significantly above the normal range and that the extent of these abnormalities was generally higher in nonsurvivors than in survivors. Multivariable mixed effects models provided strong evidence for a biological gradient (suggestive of a direct role in organ damage) between the viremia levels and either ALT, AST, CPK LDH, aPTT, and INR. In contrast, no direct linear association was found between viremia and either creatinine, BUN, or bilirubin. Conclusions: This study provides evidence to support that Ebola virus may have a direct role in muscular damage and imbalance of the coagulation system. We did not find strong evidence suggestive of a direct role of Ebola virus in kidney damage. The role of the virus in liver damage remains unclear, but our evidence suggests that acute severe liver injury is not a typical feature of Ebola virus disease. PMID- 29020341 TI - Percutaneous short-term active mechanical support devices in cardiogenic shock: a systematic review and collaborative meta-analysis of randomized trials. AB - Aims: Evidence on the impact on clinical outcome of active mechanical circulatory support (MCS) devices in cardiogenic shock (CS) is scarce. This collaborative meta-analysis of randomized trials thus aims to investigate the efficacy and safety of percutanzeous active MCS vs. control in CS. Methods and results: Randomized trials comparing percutaneous active MCS to control in patients with CS were identified through searches of medical literature databases. Risk ratios (RR) and 95% confidence intervals (95% CI) were calculated to analyse the primary endpoint of 30-day mortality and device-related complications including bleeding and leg ischaemia. Mean differences (MD) were calculated for mean arterial pressure (MAP), cardiac index (CI), pulmonary capillary wedge pressure (PCWP), and arterial lactate. Four trials randomizing 148 patients to either TandemHeartTM or Impella(r) MCS (n = 77) vs. control (n = 71) were identified. In all four trials intra-aortic balloon pumping (IABP) served as control. There was no difference in 30-day mortality (RR 1.01, 95% CI 0.70 to 1.44, P = 0.98, I2 = 0%) for active MCS compared with control. Active MCS significantly increased MAP (MD 11.85 mmHg, 95% CI 3.39 to 20.31, P = 0.02, I2 = 32.7%) and decreased arterial lactate (MD - 1.36 mmol/L, 95% CI - 2.52 to - 0.19, I2 = 0%, P = 0.02) at comparable CI (MD 0.32, 95% CI - 0.24 to 0.87, P = 0.14, I2 = 44.1%) and PCWP (MD - 5.59, 95% -15.59 to 4.40, P = 0.14, I2 = 81.1%). No significant difference was observed in the incidence of leg ischaemia (RR 2.64, 95% CI 0.83 to 8.39, P = 0.10, I2 = 0%), whereas the rate of bleeding was significantly increased in MCS compared to IABP (RR 2.50, 95% CI 1.55 to 4.04, P < 0.001, I2 = 0%). Conclusion: Results of this collaborative meta-analysis do not support the unselected use of active MCS in patients with CS complicating AMI. PMID- 29020342 TI - Lack of Ovarian Secretions Reverts the Anabolic Action of Olanzapine in Female Rats. AB - Background: Olanzapine is an orexigenic antipsychotic drug associated with serious metabolic adverse effects in humans. Development of valid rodent models for antipsychotic-induced metabolic adverse effects is hampered by the fact that such effects occur in females only. Estradiol is a predominant female hormone that regulates energy balance. We hypothesized that the female-specific hyperphagia and weight gain induced by olanzapine in the rat are dependent on the presence of estrogens. Methods: Female sham-operated or ovariectomized rats were treated with a single injection of olanzapine depot formulation. Food intake, body weight, plasma lipids, lipogenic gene expression, energy expenditure, and thermogenic markers including brown adipose tissue uncoupling protein 1 protein levels were measured. Olanzapine was also administered to ovariectomized rats receiving estradiol replacement via the subcutaneous (peripheral) or intracerebroventricular route. Results: Orexigenic effects of olanzapine were lost in ovariectomized female rats. Ovariectomized rats treated with olanzapine had less pronounced weight gain than expected from their food intake. Accordingly, brown adipose tissue temperature and protein levels of uncoupling protein 1 were elevated. Replacement in ovariectomized rats with either peripherally or centrally administered estradiol reduced food intake and body weight. Cotreatment with olanzapine blocked the anorexigenic effect of peripheral, but not central estradiol. Conclusions: Our results indicate that the ovarian hormone estradiol plays an important role in olanzapine-induced hyperphagia in female rats and pinpoint the complex effects of olanzapine on the balance between energy intake and thermogenesis. PMID- 29020343 TI - Disability weights for infectious diseases in four European countries: comparison between countries and across respondent characteristics. AB - Background: In 2015, new disability weights (DWs) for infectious diseases were constructed based on data from four European countries. In this paper, we evaluated if country, age, sex, disease experience status, income and educational levels have an impact on these DWs. Methods: We analyzed paired comparison responses of the European DW study by participants' characteristics with separate probit regression models. To evaluate the effect of participants' characteristics, we performed correlation analyses between countries and within country by respondent characteristics and constructed seven probit regression models, including a null model and six models containing participants' characteristics. We compared these seven models using Akaike Information Criterion (AIC). Results: According to AIC, the probit model including country as covariate was the best model. We found a lower correlation of the probit coefficients between countries and income levels (range rs: 0.97-0.99, P < 0.01) than between age groups (range rs: 0.98-0.99, P < 0.01), educational level (range rs: 0.98-0.99, P < 0.01), sex (rs = 0.99, P < 0.01) and disease status (rs = 0.99, P < 0.01). Within country the lowest correlations of the probit coefficients were between low and high income level (range rs = 0.89-0.94, P < 0.01). Conclusions: We observed variations in health valuation across countries and within country between income levels. These observations should be further explored in a systematic way, also in non-European countries. We recommend future researches studying the effect of other characteristics of respondents on health assessment. PMID- 29020344 TI - Standardized definitions of structural deterioration and valve failure in assessing long-term durability of transcatheter and surgical aortic bioprosthetic valves: a consensus statement from the European Association of Percutaneous Cardiovascular Interventions (EAPCI) endorsed by the European Society of Cardiology (ESC) and the European Association for Cardio-Thoracic Surgery (EACTS). PMID- 29020346 TI - Reply to Davido et al. PMID- 29020345 TI - Plasmodium malariae in Israeli Travelers: A Nationwide Study. AB - Background: Little is known about Plasmodium malariae, a relatively rare cause of malaria in returned travelers. Recently, polymerase chain reaction (PCR) use for malaria diagnosis has enhanced specificity of P. malariae detection. The study objective was to describe the unique aspects of P. malariae diagnosis and clinical course in travelers. Methods: Malaria is a reportable disease in Israel. All PCR-proven P. malariae monoinfections in Israeli travelers between January 2008 and January 2017 were retrieved from the Ministry of Health Reference Parasitology Laboratory. Data regarding method and timing of diagnosis, clinical characteristics, and laboratory testing were collected from patient charts. Results: Eighteen patients with P. malariae were included. All cases were acquired in Africa. During the study period, the relative proportion of P. malariae increased (2%-10% of all malaria cases). Malaria was identified by blood smear in 10 of 18 patients (56%) on admission, and by rapid antigen test in 5 of 18 (29%) patients only, while P. malariae speciation was correctly identified by smear in 2 of 18 (11%) patients. Though all patients reported fever, only 4 of 18 (22%) described a quartan fever course. In 7 of 18 (39%) patients, malaria was contracted despite prophylactic treatment. Five patients had prolonged prepatent periods (median, 55 days), all of whom received prior prophylaxis. Conclusions: The relative proportion of P. malariae is on the rise. Diagnosis in routine clinical settings is inadequate due to the low sensitivity and specificity of blood smears. PCR should be considered when clinical suspicion is high. Prophylaxis failure, which caused delayed clinical presentation, was documented. PMID- 29020347 TI - Transcatheter aortic valve implantation in lower-risk patients: what is the perspective? AB - In the last decade, transcatheter aortic valve implantation (TAVI), a disruptive technology, has revolutionized the therapy of symptomatic severe aortic stenosis, and current guidelines state that the recommendations for TAVI and surgical aortic valve replacement (SAVR) are equivalent in patients at high-risk. Increased operator experience, technical advances in the new generation of transcatheter heart valves (THV) and excellent TAVI results in recently published randomized controlled trials have led to the expansion of TAVI indication as an alternative to SAVR in intermediate-risk subjects, given appropriate patient selection. The time is opportune to examine the role of TAVI in low-risk patients, currently the objective of on-going randomized trials. This review aims to summarize the available knowledge on TAVI in low- to intermediate-risk patients and to discuss the potential advantages and pitfalls TAVI will face in this clinical setting. PMID- 29020349 TI - A family of diseases in families of patients. PMID- 29020350 TI - Monitoring of Parasite Kinetics in Indian Post-Kala-azar Dermal Leishmaniasis. AB - Background: The potential reservoirs of leishmaniasis in South Asia include relapsed cases of visceral leishmaniasis (VL), patients with post-kala-azar dermal leishmaniasis (PKDL), and an asymptomatically infected population. Therefore, assessment of cure in terms of parasite clearance, early detection of PKDL, and asymptomatic VL are pivotal for ensuring elimination. This study aimed to monitor the efficacy of miltefosine and liposomal amphotericin B (LAmB) in PKDL based on parasite load. Methods: Patients with PKDL were recruited from the dermatology outpatient departments or during active field surveys. Skin biopsies were collected at disease presentation, immediately at the end of treatment, and 6 months later. The presence of parasite DNA was assessed by internal transcribed spacer-1 polymerase chain reaction, and quantified by amplification of parasite kinetoplastid DNA. Results: At disease presentation (n = 184), the median parasite load was 5229 (interquartile range [IQR], 896-50898)/MUg genomic DNA (gDNA). Miltefosine cleared the parasites to <10 in the macular (n = 17) and polymorphic (n = 21) variants, and remained so up to 6 months later (<10 parasites). LAmB reduced the parasite burden substantially in macular (n = 34; 2128 [IQR, 544-5763]/ug gDNA) and polymorphic PKDL (n = 36; 2541 [IQR, 650 9073]/ug gDNA). Importantly, in patients who returned 6 months later (n = 38), a resurgence of parasites was evident, as the parasites increased to 5665 (IQR, 1840-17067)/ug gDNA. Conclusions: This study established that quantifying parasite load is an effective approach for monitoring patients with PKDL, wherein miltefosine demonstrated near-total parasite clearance and resolution of symptoms. However, in cases treated with LAmB, the persistence of parasites suggested treatment inadequacy. This needs immediate redressal in view of the leishmaniasis elimination program targeted for 2020. PMID- 29020351 TI - Reply to Frencken et al. PMID- 29020348 TI - Kinetics of Double-Stranded DNA Viremia After Allogeneic Hematopoietic Cell Transplantation. AB - Background: Improved understanding of double-stranded DNA (dsDNA) virus kinetics after hematopoietic cell transplantation (HCT) would facilitate development of therapeutic strategies. Methods: We tested weekly plasma samples from 404 patients through day 100 after allogeneic HCT for cytomegalovirus (CMV), human herpesvirus (HHV) 6A and 6B, BK polyomavirus (BKV), adenovirus (AdV), and Epstein Barr virus (EBV) using quantitative polymerase chain reaction. Episodes lasting <=1 week were defined as blips and >1 week as persistent. We described virus specific kinetics, analyzed the association of virus area under the curve (AUC) with overall mortality, and identified risk factors for persistent episodes. Results: We identified 428 episodes of CMV, 292 of BKV, 224 of HHV-6B, 46 of AdV, and 53 of EBV. CMV and BKV had the highest proportions of persistent episodes (68% and 80%, respectively). Detection and kinetics varied by virus. HHV-6B episodes reached maximum levels fastest and had the shortest intervals between detection and end-organ disease. End-organ disease occurred within 14 days of viremia in 68% of cases, generally during persistent episodes. For all viruses, higher viral load AUC increased risk for overall mortality through day 365, persistent episodes had higher viral load than blips, and higher first positive viral load significantly increased risk for persistent episodes. First viral load >2 log10 copies/mL (range, 2.04-3.06 per virus) had high specificity for persistent episodes. Conclusions: Persistent high viral load dsDNA viremia episodes after allogeneic HCT predict mortality. Virus-specific kinetics can guide timing and thresholds for early intervention in studies of novel agents. PMID- 29020352 TI - The MIDA Mortality Risk Score: development and external validation of a prognostic model for early and late death in degenerative mitral regurgitation. AB - Aims: In degenerative mitral regurgitation (DMR), lack of mortality scores predicting death favours misperception of individual patients' risk and inappropriate decision-making. Methods and results: The Mitral Regurgitation International Database (MIDA) registries include 3666 patients (age 66 +/- 14 years; 70% males; follow-up 7.8 +/- 5.0 years) with pure, isolated, DMR consecutively diagnosed by echocardiography at tertiary (European/North/South American) centres. The MIDA Score was derived from the MIDA-Flail-Registry (2472 patients with DMR and flail leaflet-Derivation Cohort) by weighting all guideline provided prognostic markers, and externally validated in the MIDA-BNP-Registry (1194 patients with DMR and flail leaflet/prolapse-Validation Cohort). The MIDA Score ranged from 0 to 12 depending on accumulating risk factors. In predicting total mortality post-diagnosis, the MIDA Score showed excellent concordance both in Derivation Cohort (c = 0.78) and Validation Cohort (c = 0.81). In the whole MIDA population (n = 3666 patients), 1-year mortality with Scores 0, 7-8, and 11 12 was 0.4, 17, and 48% under medical management and 1, 7, and 14% after surgery, respectively (P < 0.001). Five-year survival with Scores 0, 7-8, and 11-12 was 98 +/- 1, 57 +/- 4, and 21 +/- 10% under medical management and 99 +/- 1, 82 +/- 2, and 57 +/- 9% after surgery (P < 0.001). In models including all guideline provided prognostic markers and the EuroScoreII, the MIDA Score provided incremental prognostic information (P <= 0.002). Conclusion: The MIDA Score may represent an innovative tool for DMR management, being able to position a given patient within a continuous spectrum of short- and long-term mortality risk, either under medical or surgical management. This innovative prognostic indicator may provide a specific framework for future clinical trials aiming to compare new technologies for DMR treatment in homogeneous risk categories of patients. PMID- 29020354 TI - The definition of the Brugada syndrome. AB - Brugada syndrome (BS) is an inherited disease characterized by a coved-type ST segment elevation in the right precordial leads and increased risk of sudden cardiac death (SCD), in the absence of structural abnormalities. The cornerstone of BS diagnosis and definition, is its characteristic ECG pattern that can be present spontaneously or unmasked by drugs. Brugada syndrome was first described 25 years ago; paradoxically, in an era of great technological development, a new syndrome was described with a technology developed almost a century before. Great scientific knowledge has been gathered since the description of the syndrome. The better understanding of its pathophysiology and genetic basis has led to several modifications in its definition. Despite these facts, the essential, the description of the specific ECG pattern has remained almost unchanged since the initial report. In this article, we present the definition of the BS, the rationale behind it and our thoughts about its future. PMID- 29020353 TI - Differential effects of PCSK9 variants on risk of coronary disease and ischaemic stroke. AB - Aims: PCSK9 genetic variants that have large effects on low-density lipoprotein cholesterol (LDL-C) and coronary heart disease (CHD) have prompted the development of therapeutic PCSK9-inhibition. However, there is limited evidence that PCSK9 variants are associated with ischaemic stroke (IS). Methods and results: Associations of the loss-of-function PCSK9 genetic variant (rs11591147; R46L), and five additional PCSK9 variants, with IS and IS subtypes (cardioembolic, large vessel, and small vessel) were estimated in a meta-analysis involving 10 307 IS cases and 19 326 controls of European ancestry. They were then compared with the associations of these variants with LDL-C levels (in up to 172 970 individuals) and CHD (in up to 60 801 CHD cases and 123 504 controls). The rs11591147 T allele was associated with 0.5 mmol/L lower LDL-C level (P = 9 * 10-143) and 23% lower CHD risk [odds ratio (OR): 0.77, 95% confidence interval (CI): 0.69-0.87, P = 7 * 10-6]. However, it was not associated with risk of IS (OR: 1.04, 95% CI: 0.84-1.28, P = 0.74) or IS subtypes. Information from additional PCSK9 variants also indicated consistently weaker effects on IS than on CHD. Conclusion: PCSK9 genetic variants that confer life-long lower PCSK9 and LDL-C levels appear to have significantly weaker, if any, associations with risk of IS than with risk of CHD. By contrast, similar proportional reductions in risks of IS and CHD have been observed in randomized trials of therapeutic PCSK9 inhibition. These findings have implications for our understanding of when Mendelian randomization can be relied upon to predict the effects of therapeutic interventions. PMID- 29020355 TI - Effects of empagliflozin on risk for cardiovascular death and heart failure hospitalization across the spectrum of heart failure risk in the EMPA-REG OUTCOME(r) trial. AB - Aims: Empagliflozin reduced the risk of cardiovascular (CV) death and heart failure (HF) hospitalizations in patients with type 2 diabetes (T2D) and established CV disease (CVD) in the EMPA-REG OUTCOME(r) trial. We investigated whether the benefit of empagliflozin was observed across the spectrum of HF risk. Methods and results: Seven thousand and twenty patients with T2D (HbA1c 7-10% and eGFR > 30 mL/min/1.73 m2) were treated with empagliflozin 10 or 25 mg, or placebo once daily and followed for median 3.1 years. In patients without HF at baseline (89.9%), we derived the 5-year risk for incident HF using the 9-variable Health ABC HF Risk score [classified as low-to-average (<10%), high (10-20%), and very high (>= 20%)]. Overall, 67.2% of the population had low-to-average, 24.2% high, and 5.1% very high 5-year HF risk. Across these groups, the effect on CV death and HF hospitalization with empagliflozin was consistent [hazard ratio 0.71 (95% confidence interval: 0.52, 0.96), 0.52 (0.36, 0.75), and 0.55 (0.30, 1.00), respectively]. Effects on CV death in the ostensibly highest HF risk group (HF at baseline and/or incident HF during the trial) in whom 37.9% of the overall CV deaths occurred, was also beneficial [0.67 (0.47, 0.97)], yet, similar benefits were seen in the lower risk patients. Conclusion: In patients with T2D and established CVD, a sizeable proportion without HF at baseline are at high or very high risk for HF outcomes, indicating the need for active case finding in this patient population. Empagliflozin consistently improved HF outcomes both in patients at low or high HF risk. PMID- 29020357 TI - The role of cardiologists in stroke prevention and treatment: position paper of the European Society of Cardiology Council on Stroke. PMID- 29020358 TI - Cardiac rejuvenation: a new hope in the presbycardia nightmare. PMID- 29020356 TI - A common missense variant of LILRB5 is associated with statin intolerance and myalgia. AB - Aims: A genetic variant in LILRB5 (leukocyte immunoglobulin-like receptor subfamily-B) (rs12975366: T > C: Asp247Gly) has been reported to be associated with lower creatine phosphokinase (CK) and lactate dehydrogenase (LDH) levels. Both biomarkers are released from injured muscle tissue, making this variant a potential candidate for susceptibility to muscle-related symptoms. We examined the association of this variant with statin intolerance ascertained from electronic medical records in the GoDARTS study. Methods and results: In the GoDARTS cohort, the LILRB5 Asp247 variant was associated with statin intolerance (SI) phenotypes; one defined as having raised CK and being non-adherent to therapy [odds ratio (OR) 1.81; 95% confidence interval (CI): 1.34-2.45] and the other as being intolerant to the lowest approved dose of a statin before being switched to two or more other statins (OR 1.36; 95% CI: 1.07-1.73). Those homozygous for Asp247 had increased odds of developing both definitions of intolerance. Importantly the second definition did not rely on CK elevations. These results were replicated in adjudicated cases of statin-induced myopathy in the PREDICTION-ADR consortium (OR1.48; 95% CI: 1.05-2.10) and for the development of myalgia in the JUPITER randomized clinical trial of rosuvastatin (OR1.35, 95% CI: 1.10-1.68). A meta-analysis across the studies showed a consistent association between Asp247Gly and outcomes associated with SI (OR1.34; 95% CI: 1.16-1.54). Conclusion: This study presents a novel immunogenetic factor associated with statin intolerance, an important risk factor for cardiovascular outcomes. The results suggest that true statin-induced myalgia and non-specific myalgia are distinct, with a potential role for the immune system in their development. We identify a genetic group that is more likely to be intolerant to their statins. PMID- 29020359 TI - Sofosbuvir-based Interferon-Free Direct Acting Antiviral Regimens for Heart Transplant Recipients With Chronic Hepatitis C Virus Infection. AB - We assessed the effectiveness and safety of sofosbuvir (SOF) combined with ledipasvir (LDV) or daclatasvir (DCV) in 12 heart transplant recipients with chronic hepatitis C virus (HCV). The sustained virologic response (SVR12) rate was 100% [95% confidence interval [CI]: 75.8%-100%]. All patients tolerated treatment well without interruption, death, or serious adverse events. PMID- 29020362 TI - Reply to Drancourt. PMID- 29020361 TI - Higher Mortality Despite Early Antiretroviral Therapy in Human Immunodeficiency Virus and Hepatitis B Virus (HBV)-Coinfected Patients With High HBV Replication. AB - Background: In human immunodeficiency virus (HIV)-infected patients, hepatitis B virus (HBV) coinfection increases the risk of disease progression. Tenofovir plus emtricitabine/lamivudine (TDF/XTC)-based antiretroviral therapy (ART), which suppresses HIV and HBV replication, has the potential for decreasing this risk. Here, we analyze the association between HBV replication, early ART, and mortality in West African adults. Methods: The Temprano randomized controlled trial assessed the benefits of immediately initiating vs deferring ART in HIV infected adults with high CD4 counts. After trial completion, participants continued follow-up in a posttrial phase. We analyzed the association between HBV status, immediate ART, and mortality over the entire trial and posttrial follow up using multivariable Cox proportional hazards regression. Results: A total of 2052 HIV-infected adults (median baseline CD4 count, 464 cells/MUL) were followed for 9394 person-years. At baseline, 1862 (91%) were HIV monoinfected and 190 (9%) HIV/HBV coinfected. Of the latter, 135 (71%) had plasma HBV DNA <2000 IU/mL and 55 (29%) HBV DNA >=2000 IU/mL. The 60-month probability of death was 11.8% (95% confidence interval [CI], 5.4%-24.5%) in coinfected patients with HBV DNA >=2000 IU/mL; 4.4% (95% CI, 1.9%-10.4%) in coinfected patients with HBV DNA <2000 IU/mL; and 4.2% (95% CI, 3.3%-5.4%) in HIV-monoinfected patients. Adjusting for ART strategy (immediate vs deferred), the hazard ratio of death was 2.74 (95% CI, 1.26-5.97) in coinfected patients with HBV DNA >=2000 IU/mL and 0.90 (95% CI, .36 2.24) in coinfected patients with HBV DNA <2000 IU/mL compared to HIV monoinfected patients. There was no interaction between ART strategy and HBV status for mortality. Conclusions: African HIV/HBV-coinfected adults with high HBV replication remain at heightened risk of mortality in the early ART era. Further studies are needed to assess interventions combined with early ART to decrease mortality in this population. Clinical Trials Registration: NCT00495651. PMID- 29020360 TI - Epidemiology, Clinical Features, and Outcome of Infective Endocarditis due to Abiotrophia Species and Granulicatella Species: Report of 76 Cases, 2000-2015. AB - Background: Infective endocarditis (IE) caused by Abiotrophia (ABI) and Granulicatella (GRA) species is poorly studied. This work aims to describe and compare the main features of ABI and GRA IE. Methods: We performed a retrospective study of 12 IE institutional cases of GRA or ABI and of 64 cases published in the literature (overall, 38 ABI and 38 GRA IE cases). Results: ABI/GRA IE represented 1.51% of IE cases in our institution between 2000 and 2015, compared to 0.88% of HACEK (Haemophilus, Aggregatibacter, Cardiobacterium, Eikenella, Kingella)-related IE and 16.62% of Viridans group streptococci (VGS) IE. Institutional ABI/GRA IE case characteristics were comparable to that of VGS, but periannular complications were more frequent (P = .008). Congenital heart disease was reported in 4 (10.5%) ABI and in 11 (28.9%) GRA cases (P = .04). Mitral valve was more frequently involved in ABI than in GRA (P < .001). Patient sex, prosthetic IE, aortic involvement, penicillin susceptibility, and surgical treatment were comparable between the genera. New-onset heart failure was the most frequent complication without genera differences (P = .21). Five (13.2%) ABI patients and 2 (5.3%) GRA patients died (P = .23). Factors associated with higher mortality were age (P = .02) and new-onset heart failure (P = .02). The genus (GRA vs ABI) was not associated with higher mortality (P = .23). Conclusions: GRA/ABI IE was more prevalent than HACEK IE and approximately one-tenth as prevalent as VGS; periannular complications were more frequent. GRA and ABI genera IE presented similar clinical features and outcomes. Overall mortality was low, and related to age and development of heart failure. PMID- 29020363 TI - Pneumonia Mortality in Children Aged <5 Years in 56 Countries: A Retrospective Analysis of Trends from 1960 to 2012. AB - Background: Pneumonia is now the second leading cause of death for children aged <5 years worldwide. However, analyses of the long-term evolution of under-5 mortality from pneumonia are still scarce in the literature. We aimed to explore long-term trends of under-5 mortality from pneumonia in 56 countries from 1960 to 2012. Methods: Data on under-5 mortality from pneumonia were extracted from the World Health Organization mortality database. Long-term trends were assessed for 56 countries and for 4 national income transition groups. We also used joinpoint regression analysis to detect distinct period segments of long-term trends and estimate the annual percent of changes of each period segment. Results: The average mortality rate from pneumonia for children aged 0-4 years in 56 countries declined from 163.0 per 100000 children (95% confidence interval [CI], 119.4 to 212.8) in 1960 to 9.9 per 100000 children (95% CI, 6.4 to 13.4) in 2012, with an average annual percent of change of -5.6% (95% CI, -7.2% to -3.9%). The temporal trends of childhood mortality were different between national income transition groups. Conclusions: Our findings suggest a striking overall downward trend in under-5 mortality from pneumonia between 1960 and 2012. However, the rate and absolute terms of decline differ by national income transition group. These variable patterns between national income transition groups may inform further intervention setting and priority setting. PMID- 29020365 TI - The heart-brain connection: from evidence to action. PMID- 29020366 TI - Timing, timing, timing: the emerging concept of the 'door to support' time for cardiogenic shock. PMID- 29020364 TI - Antimicrobial Resistance in Gram-Negative Rods Causing Bacteremia in Hematopoietic Stem Cell Transplant Recipients: Intercontinental Prospective Study of the Infectious Diseases Working Party of the European Bone Marrow Transplantation Group. AB - Background: This intercontinental study aimed to study gram-negative rod (GNR) resistance in hematopoietic stem cell transplantation (HSCT). Methods: GNR bacteremias occurring during 6 months post-HSCT (February 2014-May 2015) were prospectively collected, and analyzed for rates and risk factors for resistance to fluoroquinolones, noncarbapenem anti-Pseudomonas beta-lactams (noncarbapenems), carbapenems, and multidrug resistance. Results: Sixty-five HSCT centers from 25 countries in Europe, Australia, and Asia reported data on 655 GNR episodes and 704 pathogens in 591 patients (Enterobacteriaceae, 73%; nonfermentative rods, 24%; and 3% others). Half of GNRs were fluoroquinolone and noncarbapenem resistant; 18.5% carbapenem resistant; 35.2% multidrug resistant. The total resistance rates were higher in allogeneic HSCT (allo-HSCT) vs autologous HSCT (auto-HSCT) patients (P < .001) but similar in community-acquired infections. Noncarbapenem resistance and multidrug resistance were higher in auto HSCT patients in centers providing vs not providing fluoroquinolone prophylaxis (P < .01). Resistance rates were higher in southeast vs northwest Europe and similar in children and adults, excluding higher fluoroquinolone- and beta lactam/beta-lactamase inhibitor resistance rates in allo-HSCT adults. Non Klebsiella Enterobacteriaceae were rarely carbapenem resistant. Multivariable analysis revealed resistance risk factors in allo-HSCT patients: fluoroquinolone resistance: adult, prolonged neutropenia, breakthrough on fluoroquinolones; noncarbapenem resistance: hospital-acquired infection, breakthrough on noncarbapenems or other antibiotics (excluding fluoroquinolones, noncarbapenems, carbapenems), donor type; carbapenem resistance: breakthrough on carbapenem, longer hospitalization, intensive care unit, previous other antibiotic therapy; multidrug resistance: longer hospitalization, breakthrough on beta-lactam/beta lactamase inhibitors, and carbapenems. Inappropriate empiric therapy and mortality were significantly more common in infections caused by resistant bacteria. Conclusions: Our data question the recommendation for fluoroquinolone prophylaxis and call for reassessment of local empiric antibiotic protocols. Knowledge of pathogen-specific resistance enables early appropriate empiric therapy. Monitoring of resistance is crucial. Clinical Trials Registration: NCT02257931. PMID- 29020368 TI - Social vulnerabilities as determinants of overweight in 2-, 4- and 6-year-old Spanish children. AB - Background: Differences in obesity prevalence among vulnerable groups exist in childhood but it remains unclear whether these differences may be partly determined by socioeconomic status (SES), parental body mass index (BMI) and early life risk factors. We aimed to explore (i) longitudinal associations between belonging to a minority group and being overweight/obese at age 2, 4 and 6 and (ii) associations between accumulation of social vulnerabilities and being overweight/obese at age 6. Methods: In total, 1031 children (53.8% boys) were evaluated at birth and re-examined during a 6-year follow-up in a representative cohort of Aragon (Spain). Children from minority (vulnerable) groups included Spanish Roma/gypsies, Eastern Europeans, Latin Americans and Africans. Two more vulnerable groups were defined at baseline as children whose parents reported low occupation and education. Ethnicity, SES and parental BMI were collected via interviews. We used logistic mixed-effects models and adjusted for parental BMI, SES, mother's tobacco use, maternal weight gain, birth weight, infant weight gain and breastfeeding practices. Results: Regardless of confounders, Roma/gypsy children (OR = 4.63;[1.69-12.70]95%CI) and with Latin American background (OR = 3.04;[1.59-5.82]95%CI) were more likely to be overweight/obese at age 6 compared with non-gypsy Spanish group. Children with three vulnerabilities (OR = 2.18;[1.31-3.64]95%CI) were more likely to be overweight/obese at age 6 compared with children with no vulnerabilities. No associations were found between belonging to a minority group and overweight/obesity in children under 6. Conclusion: Interventions should target Roma/gypsy children, Latin American children and those who accumulate more vulnerabilities as they are at higher risk of being overweight/obese at age 6. PMID- 29020369 TI - Giant coronary aneurysm exposed on routine echocardiogram. PMID- 29020370 TI - Multivessel PCI on its 40th anniversary: finally a match for CABG? PMID- 29020371 TI - The importance of no-reflow/microvascular obstruction in the STEMI patient. PMID- 29020367 TI - Clinical outcomes of state-of-the-art percutaneous coronary revascularization in patients with de novo three vessel disease: 1-year results of the SYNTAX II study. AB - Aims: To investigate if recent technical and procedural developments in percutaneous coronary intervention (PCI) significantly influence outcomes in appropriately selected patients with three-vessel (3VD) coronary artery disease. Methods and results: The SYNTAX II study is a multicenter, all-comers, open label, single arm study that investigated the impact of a contemporary PCI strategy on clinical outcomes in patients with 3VD in 22 centres from four European countries. The SYNTAX-II strategy includes: heart team decision-making utilizing the SYNTAX Score II (a clinical tool combining anatomical and clinical factors), coronary physiology guided revascularisation, implantation of thin strut bioresorbable-polymer drug-eluting stents, intravascular ultrasound (IVUS) guided stent implantation, contemporary chronic total occlusion revascularisation techniques and guideline-directed medical therapy. The rate of major adverse cardiac and cerebrovascular events (MACCE [composite of all-cause death, cerebrovascular event, any myocardial infarction and any revascularisation]) at one year was compared to a predefined PCI cohort from the original SYNTAX-I trial selected on the basis of equipoise 4-year mortality between CABG and PCI. As an exploratory endpoint, comparisons were made with the historical CABG cohort of the original SYNTAX-I trial. Overall 708 patients were screened and discussed within the heart team; 454 patients were deemed appropriate to undergo PCI. At one year, the SYNTAX-II strategy was superior to the equipoise-derived SYNTAX-I PCI cohort (MACCE SYNTAX-II 10.6% vs. SYNTAX-I 17.4%; HR 0.58, 95% CI 0.39-0.85, P = 0.006). This difference was driven by a significant reduction in the incidence of MI (HR 0.27, 95% CI 0.11-0.70, P = 0.007) and revascularisation (HR 0.57, 95% CI 0.37-0.9, P = 0.015). Rates of all-cause death (HR 0.69, 95% CI 0.27 1.73, P = 0.43) and stroke (HR 0.69, 95% CI 0.10-4.89, P = 0.71) were similar. The rate of definite stent thrombosis was significantly lower in SYNTAX-II (HR 0.26, 95% CI 0.07-0.97, P = 0.045). Conclusion: At one year, clinical outcomes with the SYNTAX-II strategy were associated with improved clinical results compared to the PCI performed in comparable patients from the original SYNTAX-I trial. Longer term follow-up is awaited and a randomized clinical trial with contemporary CABG is warranted. ClinicalTrials.gov Identifier: NCT02015832. PMID- 29020375 TI - Food insecurity in Denmark-socio-demographic determinants and associations with eating- and health-related variables. AB - Background: Food insecurity and its consequences have not received much attention in the Nordic, social-democratic welfare states. This study reports the prevalence of low and very low food security in Denmark, identifies its socio demographic determinants and examines its associations with eating-related and health-related outcomes. Methods: A cross-sectional survey with a mixed-mode response format (telephone interviewing or Internet). A disproportional stratified random sampling design was employed (N = 1877). Main measure was the 6 item gradient food security construct adapted from the US. Results: Prevalence of low and very low food security was 6.0% (95% CI:5.4-8.5%) and 2.4% (95% CI:1.3 3.3%), respectively. Prevalence was highest in households with disposable income below OECD's poverty threshold, households receiving benefits or disability pensions, and single-parent households. After socio-demographic adjustment, adults from low/very low food secure households had a higher probability of eating an unhealthy diet (women: adj.RR 2.82 P < 0.001; men: adj.RR 2.15 P < 0.01). Adults from low/very low food secure households had lower life satisfaction (women: adj.RR 0.49, P < 0.05; men: adj.RR 0.09 P < 0.001) and higher risk of psychological distress (women: adj.RR 2.42 P < 0.05; men: adj.RR 8.95 P < 0.001). Obesity was more prevalent in low/very low food secure women (RR 2.44 P < 0.05), but not after socio-demographic adjustment. Conclusion: Food insecurity in Denmark is associated with adverse factors such as unhealthy diet, obesity, life satisfaction, and psychological distress. It is important to widen food insecurity research to non-liberal welfare states since low/very low food security is negatively associated with unhealthy eating and other health indicators, even in a social-democratic welfare state. PMID- 29020372 TI - Tolcapone-Enhanced Neurocognition in Healthy Adults: Neural Basis and Predictors. AB - Background: Failure of procognitive drug trials in schizophrenia may reflect the clinical heterogeneity of schizophrenia, underscoring the need to identify biomarkers of treatment sensitivity. We used an experimental medicine design to test the procognitive effects of a putative procognitive agent, tolcapone, using an electroencephalogram-based cognitive control task in healthy subjects. Methods: Healthy men and women (n=27; ages 18-35 years), homozygous for either the Met/Met or Val/Val rs4680 genotype, received placebo and tolcapone 200 mg orally across 2 test days separated by 1 week in a double-blind, randomized, counterbalanced, within-subject design. On each test day, neurocognitive performance was assessed using the MATRICS Consensus Cognitive Battery and an electroencephalogram-based 5 Choice-Continuous Performance Test. Results: Tolcapone enhanced visual learning in low-baseline MATRICS Consensus Cognitive Battery performers (d=0.35) and had an opposite effect in high performers (d=0.5), and enhanced verbal fluency across all subjects (P=.03) but had no effect on overall MATRICS Consensus Cognitive Battery performance. Tolcapone reduced false alarm rate (d=0.8) and enhanced frontal P200 amplitude during correctly identified nontarget trials (d=0.6) in low-baseline 5 Choice-Continuous Performance Test performers and had opposite effects in high performers (d=0.5 and d=0.25, respectively). Tolcapone's effect on frontal P200 amplitude and false alarm rate was correlated (rs=-0.4, P=.05). All neurocognitive effects of tolcapone were independent of rs4680 genotype. Conclusion: Tolcapone enhanced neurocognition and engaged electroencephalogram measures relevant to cognitive processes in specific subgroups of healthy individuals. These findings support an experimental medicine model for identifying procognitive treatments and provide a strong basis for future biomarker-informed procognitive studies in schizophrenia patients. PMID- 29020373 TI - Artemether-Lumefantrine Versus Chloroquine for the Treatment of Uncomplicated Plasmodium knowlesi Malaria: An Open-Label Randomized Controlled Trial CAN KNOW. AB - Background: Plasmodium knowlesi is reported increasingly across Southeast Asia and is the most common cause of malaria in Malaysia. No randomized trials have assessed the comparative efficacy of artemether-lumefantrine (AL) for knowlesi malaria. Methods: A randomized controlled trial was conducted in 3 district hospitals in Sabah, Malaysia to compare the efficacy of AL against chloroquine (CQ) for uncomplicated knowlesi malaria. Participants were included if they weighed >10 kg, had a parasitemia count <20000/MUL, and had a negative rapid diagnostic test result for Plasmodium falciparum histidine-rich protein 2. Diagnosis was confirmed by means of polymerase chain reaction. Patients were block randomized to AL (total target dose, 12 mg/kg for artemether and 60 mg/kg for lumefantrine) or CQ (25 mg/kg). The primary outcome was parasite clearance at 24 hours in a modified intention-to-treat analysis. Results: From November 2014 to January 2016, a total of 123 patients (including 18 children) were enrolled. At 24 hours after treatment 76% of patients administered AL (95% confidence interval [CI], 63%-86%; 44 of 58) were aparasitemic, compared with 60% administered CQ (47%-72%; 39 of 65; risk ratio, 1.3 [95% CI, 1.0-1.6]; P = .06). Overall parasite clearance was shorter after AL than after CQ (median, 18 vs 24 hours, respectively; P = .02), with all patients aparasitemic by 48 hours. By day 42 there were no treatment failures. The risk of anemia during follow-up was similar between arms. Patients treated with AL would require lower bed occupancy than those treated with CQ (2414 vs 2800 days per 1000 patients; incidence rate ratio, 0.86 [95% CI, .82-.91]; P < .001). There were no serious adverse events. Conclusions: AL is highly efficacious for treating uncomplicated knowlesi malaria; its excellent tolerability and rapid therapeutic response allow earlier hospital discharge, and support its use as a first-line artemisinin-combination treatment policy for all Plasmodium species in Malaysia. Clinical trials registration: NCT02001012. PMID- 29020374 TI - Asian dust exposure triggers acute myocardial infarction. AB - Aims: To elucidate whether Asian dust is associated with the incidence of acute myocardial infarction (AMI) and to clarify whether patients who are highly sensitive to Asian dust will develop AMI. Methods and results: Twenty-one participating institutions located throughout Kumamoto Prefecture and capable of performing coronary intervention were included in the study. Data for ground level observations of Asian dust events were measured at the Kumamoto Local Meteorological Observatory. Data collected between 1 April 2010 and 31 March 2015 were analysed, and 3713 consecutive AMI patients were included. A time-stratified case-crossover design was applied to examine the association between Asian dust exposure and AMI. The occurrence of Asian dust events at 1 day before the onset of AMI was associated with the incidence of AMI [odds ratio (OR), 1.46; 95% confidence interval (CI), 1.09-1.95] and especially, non-ST-segment elevation myocardial infarction was significant (OR 2.03; 95% CI, 1.30-3.15). A significant association between AMI and Asian dust was observed in patients with age >=75 years, male sex, hypertension, diabetes mellitus, never-smoking status, and chronic kidney disease (CKD). However, Asian dust events had a great impact on AMI onset in patients with CKD (P < 0.01). A scoring system accounting for several AMI risk factors was developed. The occurrence of Asian dust events was found to be significantly associated with AMI incidence among patients with a risk score of 5-6 (OR 2.45; 95% CI: 1.14-5.27). Conclusion: Asian dust events may lead to AMI and have a great impact on its onset in patients with CKD. PMID- 29020376 TI - Differences in education and premature mortality: a record linkage study of over 35 million Italians. AB - Background: Large, representative studies are needed to evaluate cause-specific aspects of socio-economic inequalities in mortality. Methods: We conducted a census-based retrospective cohort study to quantify differences in cause-specific premature mortality by educational level in Italy. We linked the 2011 Italian census with 2012 and 2013 death registries. We used the mortality rate ratio (MRR) as a measure of relative inequality. Results: Overall, 305 043 deaths (190 061 men-114 982 women) were registered from a population of 35 708 445 subjects aged 30-74. The age-standardized mortality rate for all educational levels was 57.68 deaths per 10 000 person-years among men and 31.41 among women. MRR from all causes was 0.51 (95% CI: 0.49; 0.52) in men and 0.63 (95% CI: 0.61; 0.65) in women for the highest (university) compared to the lowest level of education (none or primary school). The association was stronger in single than in married individuals: MRRs were 0.36 (95% CI: 0.34; 0.39) in single men, 0.57 (95% CI: 0.55; 0.59) in married men, 0.44 (95% CI: 0.40; 0.47) in single women and 0.69 (95% CI: 0.66; 0.72) in married women. High education was associated with lower mortality from liver, circulatory, chronic respiratory and genitourinary diseases in both sexes. Highly educated men had a lower mortality from lung cancer than less educated men, whereas highly educated women did not have a reduced mortality from lung and breast cancers. Conclusion: Level of education is a strong indicator of premature mortality. The magnitude of the association between educational level and mortality differs across sexes, marital status and causes of death. PMID- 29020379 TI - Transcatheter aortic valve implantation with a mechanical-expandable device: when perfection is hung on a 'wire'. PMID- 29020377 TI - The effect of a hepatitis pay-for-performance program on outcomes of patients undergoing antiviral therapy. AB - Background: To examine the effect of a participatory pay-for-performance (P4P) program in Taiwan on health outcomes for patients with severe hepatitis B or C. Methods: This study adopted 4-year panel data from the databases of the National Health Insurance Administration (NHIA) in Taiwan. Using the caliper matching method to match patients in the P4P (experimental) group with those in the potential comparison group on a one-to-one basis for the year 2010, we tracked patients up to the year 2013 and employed Cox proportional-hazards regression models to evaluate the effect on patient outcomes. Results: The P4P group did not have a lower risk (HR = 0.44, P = 0.05) of hospital admission for severe hepatitis patients (i.e. need antiviral therapy). The risk of developing liver cirrhosis was also lower, but the reduction was not statistically significant (HR = 0.92, P = 0.77). Conclusions: This study found that participatory-type P4P has not resulted in reduced hospital admission of hepatitis B or C patients who need antiviral therapy. The means by which the participatory P4P program could strengthen patient-centered care to achieve better patient health outcomes is discussed in detail. PMID- 29020380 TI - Improving secondary cardiovascular risk prediction: taking a few steps along the long path from probability toward certainty. PMID- 29020383 TI - HDL biogenesis revisited: how desmocollin-1 could sabotage reverse cholesterol transport in the arterial wall. PMID- 29020382 TI - Moderate Alcohol Use Is Not Associated With Fibrosis Progression in Human Immunodeficiency Virus/Hepatitis C Virus-Coinfected Women: A Prospective Cohort Study. AB - Background: Heavy alcohol use can lead to progressive liver damage, especially in individuals with chronic hepatitis C (HCV); however, the impact of nonheavy use is not clear. We studied long-term effects of modest alcohol use on fibrosis progression in a large cohort of women coinfected with human immunodeficiency virus (HIV)/HCV. Methods: Alcohol intake was ascertained every 6 months and use categorized as abstinent, light (1-3 drinks/week), moderate (4-7 drinks/week), heavy (>7 drinks/week), and very heavy (>14 drinks/week). Fibrosis progression was defined as the change in Fibrosis-4 Index for Liver Fibrosis (FIB-4) units per year using random-intercept, random-slope mixed modeling. Results: Among 686 HIV/HCV-coinfected women, 46.0% reported no alcohol use; 26.8% reported light use, 7.1% moderate use, and 19.7% heavy use (6.7% had 8-14 drinks/week and 13.0% had >14 drinks/week) at cohort entry. Median FIB-4 at entry was similar between groups. On multivariable analysis, compared to abstainers, light and moderate alcohol use was not associated with fibrosis progression (0.004 [95% confidence interval {CI}, -.11 to .12] and 0.006 [95% CI, -.18 to .19] FIB-4 units/year, respectively). Very heavy drinking (>14 drinks/week) showed significant fibrosis acceleration (0.25 [95% CI, .01-.49] FIB-4 units/year) compared to abstaining, whereas drinking 8-14 drinks per week showed minimal acceleration of fibrosis progression (0.04 [95% CI, -.19 to .28] FIB-4 units/year). Conclusions: Light/moderate alcohol use was not substantially associated with accelerated fibrosis progression, whereas drinking >14 drinks per week showed increased rates of fibrosis progression. Women with HIV/HCV infection should be counseled against heavy alcohol consumption, but complete abstinence may not be required to prevent accelerated liver fibrosis progression. PMID- 29020385 TI - A process evaluation of the 'Aware' and 'Supportive Communities' gambling harm minimisation programmes in New Zealand. AB - Background: The Gambling Act 2003 mandated a public health strategy for preventing and minimising gambling harm in New Zealand. Aware Communities and Supportive Communities are two public health programmes subsequently implemented nationwide. These programmes differed from common health promotion initiatives such as media or education campaigns as they were community-action based (requiring community involvement in programme planning and delivery). We carried out a process evaluation to determine their implementation effectiveness and inform improvement and future programme planning. Methods: Our qualitative dominant mixed methods design comprised analysis of over a hundred implementer progress reports (submitted July 2010 - June 2013), a staff survey and a staff focus group interview. Results: The programmes demonstrated capacity to not only achieve expected outcomes (e.g. enhanced community awareness about harmful gambling), but also to enhance social sustainability at the community level (e.g. established trustful relationships) and achieve some programme sustainability (e.g. community ownership over ongoing programme delivery). Conclusions: The evaluation noted the potential for a sustainable gambling harm-minimisation model. Community-action based harm-minimisation programmes offer programme sustainability potential which in turn offers funding cost-effectiveness when there are continual public health outcomes beyond initial funding. Although resource intensive, the community-action based approach enables culturally appropriate public health programmes suitable for societies where specific ethnic groups have higher gambling risk. Recognition of such harm-minimisation programmes' contribution to social sustainability is important considering the potential for broader public health outcomes (e.g. better life quality, lesser social problems) within socially sustainable societies. PMID- 29020381 TI - Antibody Banding Patterns of the Enzyme-Linked Immunoelectrotransfer Blot and Brain Imaging Findings in Patients With Neurocysticercosis. AB - Background: The enzyme-linked immunoelectrotransfer blot (EITB) assay is the reference serological test for neurocysticercosis (NCC). A positive result on EITB does not always correlate with the presence of active infections in the central nervous system (CNS), and patients with a single viable brain cyst may be EITB negative. Nonetheless, EITB antibody banding patterns appears to be related with the expression of 3 protein families of Taenia solium, and in turn with the characteristics of NCC in the CNS (type, stage, and burden of viable cysts). Methods: We evaluated EITB antibody banding patterns and brain imaging findings of 548 NCC cases. Similar banding patterns were grouped into homogeneous classes using latent class analysis. The association between classes and brain imaging findings was assessed. Results: Four classes were identified. Class 1 (patients negative or only positive to the GP50 band, related to the protein family of the same name) was associated with nonviable or single viable parenchymal cysticerci; class 2 (patients positive to bands GP42-39 and GP24, related to the T24-42 protein family, with or without anti-GP50 antibodies) was associated with intraparenchymal viable and nonviable infections; classes 3 and 4 (positive to GP50, GP42-39, and GP24 but also responding to low molecular weight bands GP21, GP18, GP14, and GP13, related to the 8 kDa protein family) were associated with extraparenchymal and intraparenchymal multiple viable cysticerci. Conclusions: EITB antibody banding patterns correlate with brain imaging findings and complement imaging information for the diagnosis of NCC and for staging NCC patients. PMID- 29020386 TI - Seroprevalence of Antibodies to Toxocara Species in the United States and Associated Risk Factors, 2011-2014. AB - Background: Toxocariasis results from infection with larval stages of a dog and cat intestinal nematode and causes human morbidity. The current United States estimate of Toxocara exposure is 13.9% (National Health and Nutrition Examination Survey [NHANES] III [1988-1994]). Methods: We used a multiplex bead-based assay (Tc-CTL-1MBA) with purified Toxocara canis antigen to estimate Toxocara antibody seroprevalence in serum of 13 509 persons aged >=6 years from NHANES 2011-2014 and identified seropositivity risk factors. We tested a subset of 500 samples with the T. canis enzyme immunoassay used in NHANES III to estimate prior seroprevalence had samples from NHANES III been tested by Tc-CTL-1MBA. Results: The age-standardized estimate of Toxocara seroprevalence was 5.0% (95% confidence interval [CI], 4.2%-5.8%), lower than previously reported even after adjusting for increased Tc-CTL-1MBA specificity. Risk factors for seropositivity from multiple logistic regression were older age, non-Hispanic black/Hispanic origin, male sex, living below poverty level, households with >=0.5 persons per room, less than college education, and birth outside of the United States. Conclusions: Toxocara seroprevalence estimates in 2011-2014 were lower than in a study from NHANES III (1988-1994), but seropositivity risk factors remained the same and should continue to be the focus of prevention efforts. PMID- 29020384 TI - Fibrosis as measured by the biomarker, tissue inhibitor metalloproteinase-1, predicts mortality in Age Gene Environment Susceptibility-Reykjavik (AGES Reykjavik) Study. AB - Background: Fibrosis is a key pathological process in many chronic inflammatory disease states. Aims: We hypothesized that tissue inhibitor metalloproteinase-1 and matrix metalloproteinase-9 (TIMP-1 and MMP-9), biomarkers of fibrosis, would predict all-cause mortality and we assessed the incremental value of these biomarkers when adjusting for clinical and other biomarkers. Methods: The cohort included 5511 community-dwelling participants in the AGES-Reykjavik Study. The baseline Cox proportional hazards regression model was based on the Framingham Risk Score variables; we added TIMP-1, MMP-9, serum high-sensitivity C-reactive protein (hsCRP), and estimated glomerular filtration rate (eGFR). The primary outcome was all-cause 10-year mortality. Cause of death was categorized as cardiovascular death (CVD), cancer death, and other causes. Results: Participants averaged 76 years and 43% were male. Ten-year mortality was 41% (2263 deaths). Of these, 915 (16.6%) died of cardiovascular disease (CVD), 543 (9.9%) with cancer, and 805 (14.6%) from other causes. For 10-year mortality, age was the strongest predictor (log likelihood chi2 = 798.7, P < 0.0001), followed by TIMP-1 (chi2 = 125.2, P < 0.0001), female gender, current smoker, diabetes mellitus, total cholesterol, eGFR (chi2 16.7, P < 0.0001), body mass index, and hsCRP (chi2 11.3, P = 0.0008) in that order. TIMP-1 and hsCRP had the highest continuous net reclassification improvement over the baseline model for 5-year survival [net reclassification index (NRI) 0.28 and 0.19, respectively, both P < 0.0001] and for 10-year survival (NRI 0.19 and 0.11, respectively, both statistically significant). Conclusion: TIMP-1 is the strongest predictor of all-cause mortality after age. The metabolic pathways regulating extracellular matrix homeostasis and fibrogenic processes appear pathologically relevant and are prognostically important. PMID- 29020388 TI - Temporal trends in atrial fibrillation recurrence rates after ablation between 2005 and 2014: a nationwide Danish cohort study. AB - Aims: During the last decade, ablation has increasingly been used in rhythm control management of patients with atrial fibrillation (AF). Over time, experience and techniques have improved and indications for ablation have expanded. The purpose of this study was to investigate whether the recurrence rate of AF following ablation has improved during last decade. Methods and results: Through Danish nationwide registers, all patients with first-time AF ablation, between 2005 and 2014 in Denmark were identified. Recurrent AF after ablation was identified with 1 year follow-up. A total of 5425 patients undergoing first-time ablation were included. While patient median age increased over time the median AF duration prior to ablation decreased. The rates of recurrent AF decreased from 45% in 2005-2006 to 31% 2013-2014 with the relative risk of recurrent AF almost halved with an odds ratio of 0.57 [95% confidence intervals (95% CI) 0.47-0.68] in 2013-2014 compared with patients undergoing ablation in 2005-2006. Female gender, hypertension, AF duration >2 years, and cardioversion within 1 year prior to ablation were all associated with an increased risk of recurrent AF. Conclusion: One year risk of recurrent AF following first-time ablation has almost halved from 2006 to 2014. Hypertension, female sex, cardioversion 1 year prior to ablation, and AF duration for more than 2 years all increased the associated risk of recurrent AF. PMID- 29020389 TI - Cactus aorta. PMID- 29020392 TI - How to use Mendelian randomization to anticipate the results of randomized trials. PMID- 29020390 TI - Smoking may increase the risk of influenza hospitalization and reduce influenza vaccine effectiveness in the elderly. AB - Background: Through its effects on the immune system, smoking may facilitate influenza virus infection, its severity and its most frequent complications. The objective was to investigate the smoking history as a risk factor for influenza hospitalization and influenza vaccine effectiveness in elderly smokers/ex-smokers and non-smokers. Methods: We carried out a multicenter case-control study in the 2013-2014 and 2014-2015 influenza seasons. Cases aged >=65 years and age-, sex matched controls were selected from 20 Spanish hospitals. We collected epidemiological variables, comorbidities, vaccination history and the smoking history. The risk of hospitalization due to smoking (current smokers and ex smokers) was determined using the adjusted odds ratio (aOR) with conditional logistic regression models. Vaccine effectiveness (VE) was calculated using the formula: VE = (1 - aOR) * 100. Results: We studied 728 cases and 1826 controls. Cases had a higher frequency of smoking (47.4% vs 42.1%). Smoking was associated with an increased risk of influenza hospitalization (aOR = 1.32, 95% CI: 1.04 1.68). Influenza vaccine effectiveness in preventing hospitalization was 21% (95% CI: -2 to 39) in current/ex-smokers and 39% in non-smokers (95% CI: 22-52). Conclusions: A history of smoking may increase the risk of hospitalization in smokers and ex-smokers. Preventing smoking could reduce hospitalizations due to influenza. Smokers and ex-smokers should be informed of the risk of hospitalization due to influenza infection, and encouraged to stop smoking. Smokers should be considered an at-risk group to be aggressively targeted for routine influenza vaccination. PMID- 29020387 TI - Reversal of Stress-Induced Social Interaction Deficits by Buprenorphine. AB - Background: Patients with post-traumatic stress disorder frequently report persistent problems with social interactions, emerging after a traumatic experience. Chronic social defeat stress is a widely used rodent model of stress that produces robust and sustained social avoidance behavior. The avoidance of other rodents can be reversed by 28 days of treatment with selective serotonin reuptake inhibitors, the only pharmaceutical class approved by the U.S. Food and Drug Administration for treating post-traumatic stress disorder. In this study, the sensitivity of social interaction deficits evoked by 10 days of chronic social defeat stress to prospective treatments for post-traumatic stress disorder was examined. Methods: The effects of acute and repeated treatment with a low dose of buprenorphine (0.25 mg/kg/d) on social interaction deficits in male C57BL/6 mice by chronic social defeat stress were studied. Another cohort of mice was used to determine the effects of the selective serotonin reuptake inhibitor fluoxetine (10 mg/kg/d), the NMDA antagonist ketamine (10 mg/kg/d), and the selective kappa opioid receptor antagonist CERC-501 (1 mg/kg/d). Changes in mRNA expression of Oprm1 and Oprk1 were assessed in a separate cohort. Results: Buprenorphine significantly reversed social interaction deficits produced by chronic social defeat stress following 7 days of administration, but not after acute injection. Treatment with fluoxetine for 7 days, but not 24 hours, also reinstated social interaction behavior in mice that were susceptible to chronic social defeat. In contrast, CERC-501 and ketamine failed to reverse social avoidance. Gene expression analysis found: (1) Oprm1 mRNA expression was reduced in the hippocampus and increased in the frontal cortex of susceptible mice and (2) Oprk1 mRNA expression was reduced in the amygdala and increased in the frontal cortex of susceptible mice compared to non-stressed controls and stress resilient mice. Conclusions: Short-term treatment with buprenorphine and fluoxetine normalized social interaction after chronic social defeat stress. In concert with the changes in opioid receptor expression produced by chronic social defeat stress, we speculate that buprenorphine's efficacy in this model of post traumatic stress disorder may be associated with the ability of this compound to engage multiple opioid receptors. PMID- 29020393 TI - Making sense of a seemingly odd connection. PMID- 29020394 TI - Patients With Isolated Hepatitis B Core Antibody: Has the Time Come to Vaccinate? PMID- 29020395 TI - Insight Into the Complex Epidemiology of Multidrug-Resistant Enterobacteriaceae. PMID- 29020391 TI - Association between mitochondrial DNA copy number and sudden cardiac death: findings from the Atherosclerosis Risk in Communities study (ARIC). AB - Aims: Sudden cardiac death (SCD) is a major public health burden. Mitochondrial dysfunction has been implicated in a wide range of cardiovascular diseases including cardiomyopathy, heart failure, and arrhythmias, but it is unknown if it also contributes to SCD risk. We sought to examine the prospective association between mtDNA copy number (mtDNA-CN), a surrogate marker of mitochondrial function, and SCD risk. Methods and results: We measured baseline mtDNA-CN in 11 093 participants from the Atherosclerosis Risk in Communities (ARIC) study. mtDNA copy number was calculated from probe intensities of mitochondrial single nucleotide polymorphisms (SNP) on the Affymetrix Genome-Wide Human SNP Array 6.0. Sudden cardiac death was defined as a sudden pulseless condition presumed due to a ventricular tachyarrhythmia in a previously stable individual without evidence of a non-cardiac cause of cardiac arrest. Sudden cardiac death cases were reviewed and adjudicated by an expert committee. During a median follow-up of 20.4 years, we observed 361 SCD cases. After adjusting for age, race, sex, and centre, the hazard ratio for SCD comparing the 1st to the 5th quintiles of mtDNA CN was 2.24 (95% confidence interval 1.58-3.19; P-trend <0.001). When further adjusting for traditional cardiovascular disease risk factors, prevalent coronary heart disease, heart rate, QT interval, and QRS duration, the association remained statistically significant. Spline regression models showed that the association was approximately linear over the range of mtDNA-CN values. No apparent interaction by race or by sex was detected. Conclusion: In this community-based prospective study, mtDNA-CN in peripheral blood was inversely associated with the risk of SCD. PMID- 29020396 TI - Perception and use of Pap smear screening among rural and urban women in Romania. AB - Background: In 2012 the National Screening Program for all women between 25 and 64 years of age was launched in Romania. Public awareness is an important factor in the success of a screening program. For this reason, we intended to assess the perception and the level of awareness of Romanian women regarding the Pap test in the prevention of cervical cancer. Methods: A cross-sectional study was conducted among 454 women from rural and urban areas. For our study, we used a questionnaire covering general characteristics, awareness, knowledge and practices regarding cervical cancer and Pap smear. Results: 431 participants (95%) had heard of cervical cancer and Pap smear but only 71.8% knew the exact role of it. Bivariate analysis showed that knowledge about the importance of the Pap smear, early detection and treatment of early-stage cervical cancer was reduced among women with low socio-economic status, mainly living in rural area. The most frequent reasons for avoiding Pap smear screening were: lack of money, embarrassment or fear of gynaecological consultation and pain, the feeling that they don't need it, misconceptions about cervical cancer, fatalistic attitude, perceived low susceptibility to cervical cancer. Conclusions: Because the uptake and the success of cervical cancer screening are determined by women's knowledge and awareness of Pap smear, it is critical to improve these perceptions in the near future especially in rural area characterized by a low socio-economic status. PMID- 29020397 TI - Pentraxin 3 Gene Polymorphisms and Pulmonary Aspergillosis in Chronic Obstructive Pulmonary Disease Patients. AB - Background: Pentraxin 3 (PTX3) plays an important role in resistance to Aspergillus infections. Previous studies have suggested that PTX3 polymorphisms influence the risk of invasive aspergillosis among transplantation recipients. This study investigated the association between PTX3 gene polymorphisms and pulmonary aspergillosis in a chronic obstructive pulmonary disease (COPD) population. Methods: We included 173 consecutive inpatients with COPD. Thirty-six case patients were finally diagnosed with pulmonary aspergillosis. Among these, 25 case patients had invasive pulmonary aspergillosis (IPA), and 11 case patients had chronic pulmonary aspergillosis (CPA). Three single nucleotide polymorphisms (SNPs; rs2305619, rs3816527, and rs1840680) in the PTX3 gene were detected by polymerase chain reaction direct sequencing, and their associations with aspergillosis were evaluated. Plasma PTX3 levels were measured by enzyme-linked immunosorbent assay. Results: Three SNPs were consistent with Hardy-Weinberg equilibrium. The recessive model for SNP rs1840680 suggests that the AA homozygote is associated with a higher risk for pulmonary aspergillosis (both IPA and CPA) in COPD patients. However, for genotypic and allele frequencies of rs2305619 and rs3816527, no association was observed. The distribution of haplotypes (rs2305619 and rs3816527) also showed no significant differences. Plasma PTX3 levels significantly increased in IPA patients. In the IPA group, the rs1840680 AA genotype subjects showed lower plasma PTX3 levels than those harboring AG and GG genotypes. Conclusions: This study showed a significant association between PTX3 rs1840680 polymorphisms and the susceptibility of pulmonary aspergillosis in patients with COPD. Plasma PTX3 levels may be potentially used as indicators for the diagnosis of IPA in COPD patients. PMID- 29020398 TI - Predicting the future by looking at the past: necessary but not binding. PMID- 29020400 TI - Assessing the quality of health technology registers for national guidance development. AB - Background: The National Institute of Health and Care Excellence makes use of registers to collect data for technologies that require more evidence to inform future decision-making. This is particularly so for the Interventional Procedures Programme, which since 2003 has produced guidance for procedures that are typically not well established, meaning that named registers are often recommended for future data collection. Methods: We constructed a questionnaire based on quality standards for recommended registers defined by the Interventional Procedures Programme. All guidance from 2003 to 2016 were reviewed to identify recommended registers and compile a list of corresponding registries. We made a maximum of four attempts to contact each registry. Each register was scored on seven quality standards: accessibility, responsiveness, data publication, data coverage, data validity, independent oversight and data protection, with a maximum of 14 points. Results: We obtained responses from 17 out of 24 eligible registries, a response rate of 70.8%. The mean total score was 8.5 (standard deviation 2.9, range 4-14). Overall, the quality of recommended registers was disappointing, with a split between large registries that scored highly across all standards and smaller registries that scored poorly. Conclusions: This the first study to our knowledge to assess the quality of registers recommended by health technology assessment agencies. Only a limited number of registers were mature enough to deliver evidence of sufficiently high quality to inform funding decisions. A standardised quality assessment tool is needed to evaluate registers before their recommendation for observational data gathering by decision-making bodies. PMID- 29020399 TI - International variations in the gestational age distribution of births: an ecological study in 34 high-income countries. AB - Background: Few studies have investigated international variations in the gestational age (GA) distribution of births. While preterm births (22-36 weeks GA) and early term births (37-38 weeks) are at greater risk of adverse health outcomes compared to full term births (39-40 weeks), it is not known if countries with high preterm birth rates also have high early term birth rates. We examined rate associations between preterm and early term births and mean term GA by mode of delivery onset. Methods: We used routine aggregate data on the GA distribution of singleton live births from up to 34 high-income countries/regions in 1996, 2000, 2004, 2008 and 2010 to study preterm and early term births overall and by spontaneous or indicated onset. Pearson correlation coefficients were adjusted for clustering in time trend analyses. Results: Preterm and early term births ranged from 4.1% to 8.2% (median 5.5%) and 15.6% to 30.8% (median 22.2%) of live births in 2010, respectively. Countries with higher preterm birth rates in 2004 2010 had higher early term birth rates (r > 0.50, P < 0.01) and changes over time were strongly correlated overall (adjusted-r = 0.55, P < 0.01) and by mode of onset. Conclusion: Positive associations between preterm and early term birth rates suggest that common risk factors could underpin shifts in the GA distribution. Targeting modifiable population risk factors for delivery before 39 weeks GA may provide a useful preterm birth prevention paradigm. PMID- 29020401 TI - Discrimination of patients with type 2 myocardial infarction. AB - Aims: The differentiation of type 1 and type 2 myocardial infarction (T1MI, T2MI) is important, but challenging in the emergency department. We aimed to investigate the clinical characteristics and cardiovascular outcome of T2MI patients and to develop a clinical decision tool to differentiate T1MI and T2MI patients. Methods and results: We prospectively enrolled 1548 patients with suspected MI. All patients were followed for up to 2 years to assess mortality. We used logistic regression with backward step-down selection to determine the most important predictors of T2MI. Based on these regression coefficients, we developed a diagnostic prediction model (score) to diagnose T2MI. T2MI was the final diagnosis of 99 patients. Patients with T2MI showed a high 1-year mortality rate (13.8%), which equals that of T1MI patients (9.4%). Female sex (Beta 1.27 [95% confidence interval; CI 0.67-1.90]), not having radiating chest pain (Beta 1.62 [CI 0.96-2.34]) and a baseline high-sensitivity troponin I concentration <= 40.8 ng/L (Beta 1.30 [CI 0.74-1.89]) were the strongest predictors for T2MI. Their combination resulted in an area under the curve of 0.71 to discriminate T1MI and T2MI. The binary score based on this model assigns one point to each of the predictors. Patients with the highest score value of 3 had a 72% probability of T2MI. Conclusion: T2MI patients are a heterogeneous population with high cardiovascular risk. A score based on laboratory and clinical parameters might help to differentiate T1MI and T2MI patients. The additional use of this score in clinical routine needs to be investigated prospectively. Trial registration: www.clinicaltrials.gov (NCT02355457). PMID- 29020402 TI - Women with hypertrophic cardiomyopathy have worse survival. AB - Aims: Sex differences in hypertrophic cardiomyopathy (HCM) remain unclear. We sought to characterize sex differences in a large HCM referral centre population. Methods and results: Three thousand six hundred and seventy-three adult patients with HCM underwent evaluation between January 1975 and September 2012 with 1661 (45.2%) female. Kaplan-Meier survival curves were assessed via log-rank test. Cox proportional hazard regression analyses evaluated the relation of sex with survival. At index visit, women were older (59 +/- 16 vs. 52 +/- 15 years, P < 0.0001) had more symptoms [New York Heart Association (NYHA) Class III-IV 45.0% vs. 35.3%, P < 0.0001], more obstructive physiology (77.4% vs. 71.8%, P = 0.0001), more mitral regurgitation (moderate or greater in 56.1% vs. 43.9%, P < 0.0001), higher E/e' ratio (n = 1649, 20.6 vs. 15.6, P < 0.0001), higher estimated pulmonary artery systolic pressure (n = 1783, 40.8 +/- 15.4 vs. 34.8 +/ 10.8 mmHg, P < 0.0001), worse cardiopulmonary exercise performance (n = 1267; percent VO2 predicted 62.8 +/- 20% vs. 65.8 +/- 19.2%, P = 0.007), and underwent more frequent alcohol septal ablation (4.9% vs. 3.0%, P = 0.004) but similar frequency of myectomy (28% vs. 30%, P = 0.24). Median follow-up was 10.9 (IQR 7.4 16.2) years. Kaplan-Meier analysis demonstrated lower survival in women compared with men (P < 0.0001). In multivariable modelling, female sex remained independently associated with mortality (HR 1.13 [1.03-1.22], P = 0.01) when adjusted for age, NYHA Class III-IV symptoms, and cardiovascular comorbidities. Conclusion: Women with HCM present at more advanced age, with more symptoms, worse cardiopulmonary exercise tolerance, and different haemodynamics than men. Sex is an important determinant in HCM management as women with HCM have worse survival. Women may require more aggressive diagnostic and therapeutic approaches. PMID- 29020403 TI - Cardiac and systemic rejuvenation after cardiosphere-derived cell therapy in senescent rats. AB - Aim: The aim is to assess the effects of CDCs on heart structure, function, gene expression, and systemic parameters in aged rats. Diastolic dysfunction is characteristic of aged hearts. Cardiosphere-derived cell (CDC) therapy has exhibited several favourable effects on heart structure and function in humans and in preclinical models; however, the effects of CDCs on aging have not been evaluated. Methods and Results: We compared intra-cardiac injections of neonatal rat CDCs to vehicle (phosphate-buffered saline, PBS) in 21.8 +/- 1.6 month-old rats (mean +/- standard deviation; n = 23 total). Ten rats 4.1 +/- 1.5 months of age comprised a young reference group. Blood, echocardiographic, haemodynamic and treadmill stress tests were performed at baseline in all animals, and 1 month after treatment in old animals. Histology and the transcriptome were assessed after terminal phenotyping. For in vitro studies, human heart progenitors from older donors, or cardiomyocytes from aged rats were exposed to human CDCs or exosomes secreted by CDCs (CDC-XO) from paediatric donors. Transcriptomic analysis revealed that CDCs, but not PBS, recapitulated a youthful pattern of gene expression in the hearts of old animals (85.5% of genes differentially expressed, P < 0.05). Telomeres in heart cells were longer in CDC-transplanted animals (P < 0.0001 vs. PBS). Cardiosphere-derived cells attenuated hypertrophy by echo (P < 0.01); histology confirmed decreases in cardiomyocyte area (P < 0.0001) and myocardial fibrosis (P < 0.05) vs. PBS. Cardiosphere-derived cell injection improved diastolic dysfunction [lower E/A (P < 0.01), E/E' (P = 0.05), end-diastolic pressure-volume relationship (P < 0.05) compared with baseline), and lowered serum brain natriuretic peptide (both P < 0.05 vs. PBS). In CDC transplanted old rats, exercise capacity increased ~20% (P < 0.05 vs. baseline), body weight decreased ~30% less (P = 0.05 vs. PBS) and hair regrowth after shaving was more robust (P < 0.05 vs. PBS). Serum biomarkers of inflammation (IL 10, IL-1b, and IL-6) improved in the CDC group (P < 0.05 for each, all vs. PBS). Young CDCs secrete exosomes which increase telomerase activity, elongate telomere length, and reduce the number of senescent human heart cells in culture. Conclusion: Young CDCs rejuvenate old animals as gauged by cardiac gene expression, heart function, exercise capacity, and systemic biomarkers. PMID- 29020404 TI - Colistin Versus Ceftazidime-Avibactam in the Treatment of Infections Due to Carbapenem-Resistant Enterobacteriaceae. AB - Background: The efficacy of ceftazidime-avibactam-a cephalosporin-beta-lactamase inhibitor combination with in vitro activity against Klebsiella pneumoniae carbapenemase-producing carbapenem-resistant Enterobacteriaceae (CRE)-compared with colistin remains unknown. Methods: Patients initially treated with either ceftazidime-avibactam or colistin for CRE infections were selected from the Consortium on Resistance Against Carbapenems in Klebsiella and other Enterobacteriaceae (CRACKLE), a prospective, multicenter, observational study. Efficacy, safety, and benefit-risk analyses were performed using intent-to-treat analyses with partial credit and the desirability of outcome ranking approaches. The ordinal efficacy outcome was based on disposition at day 30 after starting treatment (home vs not home but not observed to die in the hospital vs hospital death). All analyses were adjusted for confounding using inverse probability of treatment weighting (IPTW). Results: Thirty-eight patients were treated first with ceftazidime-avibactam and 99 with colistin. Most patients received additional anti-CRE agents as part of their treatment. Bloodstream (n = 63; 46%) and respiratory (n = 30; 22%) infections were most common. In patients treated with ceftazidime-avibactam versus colistin, IPTW-adjusted all-cause hospital mortality 30 days after starting treatment was 9% versus 32%, respectively (difference, 23%; 95% bootstrap confidence interval, 9%-35%; P = .001). In an analysis of disposition at 30 days, patients treated with ceftazidime-avibactam, compared with those treated within colistin, had an IPTW-adjusted probability of a better outcome of 64% (95% confidence interval, 57%-71%). Partial credit analyses indicated uniform superiority of ceftazidime-avibactam to colistin. Conclusions: Ceftazidime-avibactam may be a reasonable alternative to colistin in the treatment of K. pneumoniae carbapenemase-producing CRE infections. These findings require confirmation in a randomized controlled trial. PMID- 29020407 TI - Does obesity along with major depression or anxiety lead to higher use of health care and costs? A 6-year follow-up study. AB - Background: Evidence lacks on whether obesity along with major depression (MD)/anxiety leads to higher health care use (HCU) and health care-related costs (HCC) compared with either condition alone. The objective of the study was to examine the longitudinal associations of obesity, MD/anxiety, and their combination with HCU and HCC. Methods: Longitudinal data (2004-2013) among N = 2706 persons at baseline and 2-,4-, and 6-year follow-up were collected on obesity, MD/anxiety and HCU. Results: The combination of obesity and MD/anxiety was associated with an increased risk of primary and specialty care visits, and of hospitalizations, odds ratios (95%-confidence intervals): 1.83 (1.44; 2.34), 1.31 (1.06; 1.61) and 1.79 (1.40; 2.29) compared to non-obese and non-depressed individuals. The primary and specialty care costs were higher in persons with obesity and MD/anxiety than in persons without these conditions, but the relative excess risk due to interactions between obesity and MD/anxiety regarding HCU and HCC were not statistically significant (i.e. no synergistic effect). Conclusions: Obesity along with MD/anxiety leads to higher HCU and HCC over time. However, the HCC associated with the joint presence of both conditions are not higher than the sum of the HCC due to each condition independently. PMID- 29020408 TI - Identifying patients with acute total coronary occlusion in NSTEACS: finding the high-risk needle in the haystack. PMID- 29020405 TI - Neuroticism Associates with Cerebral in Vivo Serotonin Transporter Binding Differently in Males and Females. AB - Background: Neuroticism is a major risk factor for affective disorders. This personality trait has been hypothesized to associate with synaptic availability of the serotonin transporter, which critically controls serotonergic tone in the brain. However, earlier studies linking neuroticism and serotonin transporter have failed to produce converging findings. Because sex affects both the serotonergic system and the risk that neuroticism poses to the individual, sex may modify the association between neuroticism and serotonin transporter, but this question has not been investigated by previous studies. Methods: Here, we combined data from 4 different positron emission tomography imaging centers to address whether neuroticism is related to serotonin transporter binding in vivo. The data set included serotonin transporter binding potential values from the thalamus and striatum and personality scores from 91 healthy males and 56 healthy females. We specifically tested if the association between neuroticism and serotonin transporter is different in females and males. Results: We found that neuroticism and thalamic serotonin transporter binding potentials were associated in both males and females, but with opposite directionality. Higher neuroticism associated with higher serotonin transporter binding potential in males (standardized beta 0.292, P=.008), whereas in females, higher neuroticism associated with lower serotonin transporter binding potential (standardized beta 0.288, P=.014). Conclusions: The finding is in agreement with recent studies showing that the serotonergic system is involved in affective disorders differently in males and females and suggests that contribution of thalamic serotonin transporter to the risk of affective disorders depends on sex. PMID- 29020406 TI - New insights into mitral valve dystrophy: a Filamin-A genotype-phenotype and outcome study. AB - Aims: Filamin-A (FLNA) was identified as the first gene of non-syndromic mitral valve dystrophy (FLNA-MVD). We aimed to assess the phenotype of FLNA-MVD and its impact on prognosis. Methods and results: We investigated the disease in 246 subjects (72 mutated) from four FLNA-MVD families harbouring three different FLNA mutations. Phenotype was characterized by a comprehensive echocardiography focusing on mitral valve apparatus in comparison with control relatives. In this X-linked disease valves lesions were severe in men and moderate in women. Most men had classical features of mitral valve prolapse (MVP), but without chordal rupture. By contrast to regular MVP, mitral leaflet motion was clearly restricted in diastole and papillary muscles position was closer to mitral annulus. Valvular abnormalities were similar in the four families, in adults and young patients from early childhood suggestive of a developmental disease. In addition, mitral valve lesions worsened over time as encountered in degenerative conditions. Polyvalvular involvement was frequent in males and non-diagnostic forms frequent in females. Overall survival was moderately impaired in men (P = 0.011). Cardiac surgery rate (mainly valvular) was increased (33.3 +/- 9.8 vs. 5.0 +/- 4.9%, P < 0.0001; hazard ratio 10.5 [95% confidence interval: 2.9-37.9]) owing mainly to a lifetime increased risk in men (76.8 +/- 14.1 vs. 9.1 +/- 8.7%, P < 0.0001). Conclusion: FLNA-MVD is a developmental and degenerative disease with complex phenotypic expression which can influence patient management. FLNA-MVD has unique features with both MVP and paradoxical restricted motion in diastole, sub valvular mitral apparatus impairment and polyvalvular lesions in males. FLNA-MVD conveys a substantial lifetime risk of valve surgery in men. PMID- 29020409 TI - Gut microbe-generated metabolite trimethylamine-N-oxide as cardiovascular risk biomarker: a systematic review and dose-response meta-analysis. AB - Aims: Gut microbiota-derived metabolite trimethylamine-N-oxide (TMAO) is emerging as a new potentially important cause of increased cardiovascular risk. The purpose of this meta-analysis was to systematically estimate and quantify the association between TMAO plasma levels, mortality, and major adverse cardio and cerebrovascular events (MACCE). Methods and results: MEDLINE, ISI Web of Science, and SCOPUS databases were searched for ad hoc studies published up to April 2017. Associations between TMAO plasma levels, all-cause mortality (primary outcome) and MACCE (secondary outcome) were systematically addressed. A total of 17 clinical studies were included in the analytic synthesis, enrolling 26 167 subjects. The mean follow-up in our study population was 4.3 +/- 1.5 years. High TMAO plasma levels were associated with increased incidence of all-cause mortality [14 studies for 16 cohorts enrolling 15 662 subjects, hazard ratio (HR): 1.91; 95% confidence interval (CI): 1.40-2.61, P < 0.0001, I2 = 94%] and MACCE (5 studies for 6 cohorts enrolling 13 944 subjects, HR: 1.67, 95% CI: 1.33 2.11, P < 0.00001, I2 = 46%,). Dose-response meta-analysis revealed that the relative risk (RR) for all-cause mortality increased by 7.6% per each 10 MUmol/L increment of TMAO [summary RR: 1.07, 95% CI (1.04-1.11), P < 0.0001; based on seven studies]. Association of TMAO and mortality persisted in all examined subgroups and across all subject populations. Conclusions: This is the first systematic review and meta-analysis demonstrating the positive dose-dependent association between TMAO plasma levels and increased cardiovascular risk and mortality. PMID- 29020411 TI - Reduction of low density lipoprotein-cholesterol and cardiovascular events with proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors and statins: an analysis of FOURIER, SPIRE, and the Cholesterol Treatment Trialists Collaboration. PMID- 29020410 TI - The Requirement of L-Type Voltage-Dependent Calcium Channel (L-VDCC) in the Rapid Acting Antidepressant-Like Effects of Scopolamine in Mice. AB - Background: Previous studies have shown that a low dose of scopolamine produces rapid-acting antidepressant-like actions in rodents. Understanding the mechanisms underlying this effect and the dose-dependent variations of drug responses remains an important task. L-type voltage-dependent calcium channels were found to mediate rapid-acting antidepressant effects of certain medications (e.g., ketamine). Therefore, it is of great interest to determine the involvement of L type voltage-dependent calcium channels in the action of scopolamine. Methods: Herein, we investigated the mechanisms underlying behavioral responses to various doses of scopolamine in mice to clarify the involvement of L-type voltage dependent calcium channels in its modes of action. Open field test, novel object recognition test, and forced swimming test were performed on mice administered varied doses of scopolamine (0.025, 0.05, 0.1, 1, and 3 mg/kg, i.p.) alone or combined with L-type voltage-dependent calcium channel blocker verapamil (5 mg/kg, i.p.). Then, the changes in brain-derived neurotrophic factor and neuropeptide VGF (nonacronymic) levels in the hippocampus and prefrontal cortex of these mice were analyzed. Results: Low doses of scopolamine (0.025 and 0.05 mg/kg) produced significant antidepressant-like effects in the forced swimming test, while higher doses (1 and 3 mg/kg) resulted in significant memory deficits and depressive-like behaviors. Moreover, the behavioral changes in responses to various doses may be related to the upregulation (0.025 and 0.05 mg/kg) and downregulation (1 and 3 mg/kg) of brain-derived neurotrophic factor and VGF in the hippocampus and prefrontal cortex in mice. We further found that the rapid acting antidepressant-like effects and the upregulation on brain-derived neurotrophic factor and VGF produced by a low dose of scopolamine (0.025 mg/kg) were completely blocked by verapamil. Conclusions: These results indicate that L type voltage-dependent calcium channels are likely involved in the behavioral changes in response to various doses of scopolamine through the regulation of brain-derived neurotrophic factor and VGF levels. PMID- 29020412 TI - Emerging Role of One-Carbon Metabolism and DNA Methylation Enrichment on delta Containing GABAA Receptor Expression in the Cerebellum of Subjects with Alcohol Use Disorders (AUD). AB - Background: Cerebellum is an area of the brain particularly sensitive to the effects of acute and chronic alcohol consumption. Alcohol exposure decreases cerebellar Purkinje cell output by increasing GABA release from Golgi cells onto extrasynaptic alpha6/delta-containing GABAA receptors located on glutamatergic granule cells. Here, we studied whether chronic alcohol consumption induces changes in GABAA receptor subunit expression and whether these changes are associated with alterations in epigenetic mechanisms via DNA methylation. Methods: We used a cohort of postmortem cerebellum from control and chronic alcoholics, here defined as alcohol use disorders subjects (n=25/group). S adenosyl-methionine/S-adenosyl-homocysteine were measured by high-performance liquid chromatography. mRNA levels of various genes were assessed by reverse transcriptase-quantitative polymerase chain reaction. Promoter methylation enrichment was assessed using methylated DNA immunoprecipitation and hydroxy methylated DNA immunoprecipitation assays. Results: mRNAs encoding key enzymes of 1-carbon metabolism that determine the S-adenosyl-methionine/S-adenosyl homocysteine ratio were increased, indicating higher "methylation index" in alcohol use disorder subjects. We found that increased methylation of the promoter of the delta subunit GABAA receptor was associated with reduced mRNA and protein levels in the cerebellum of alcohol use disorder subjects. No changes were observed in alpha1- or alpha6-containing GABAA receptor subunits. The expression of DNA-methyltransferases (1, 3A, and 3B) was unaltered, whereas the mRNA level of TET1, which participates in the DNA demethylation pathway, was decreased. Hence, increased methylation of the delta subunit GABAA receptor promoter may result from alcohol-induced reduction of DNA demethylation. Conclusion: Together, these results support the hypothesis that aberrant DNA methylation pathways may be involved in cerebellar pathophysiology of alcoholism. Furthermore, this work provides novel evidence for a central role of DNA methylation mechanisms in the alcohol-induced neuroadaptive changes of human cerebellar GABAA receptor function. PMID- 29020413 TI - Incidence, predictors, and clinical outcomes of coronary obstruction following transcatheter aortic valve replacement for degenerative bioprosthetic surgical valves: insights from the VIVID registry. AB - Aims: There are limited data on coronary obstruction following transcatheter valve-in-valve (ViV) implantation inside failed aortic bioprostheses. The objectives of this study were to determine the incidence, predictors, and clinical outcomes of coronary obstruction in transcatheter ViV procedures. Methods and results: A total of 1612 aortic procedures from the Valve-in-Valve International Data (VIVID) Registry were evaluated. Data were subject to centralized blinded corelab computed tomography (CT) analysis in a subset of patients. The virtual transcatheter valve to coronary ostium distance (VTC) was determined. A total of 37 patients (2.3%) had clinically evident coronary obstruction. Baseline clinical characteristics in the coronary obstruction patients were similar to controls. Coronary obstruction was more common in stented bioprostheses with externally mounted leaflets or stentless bioprostheses than in stented with internally mounted leaflets bioprostheses (6.1% vs. 3.7% vs. 0.8%, respectively; P < 0.001). CT measurements were obtained in 20 (54%) and 90 (5.4%) of patients with and without coronary obstruction, respectively. VTC distance was shorter in coronary obstruction patients in relation to controls (3.24 +/- 2.22 vs. 6.30 +/- 2.34, respectively; P < 0.001). Using multivariable analysis, the use of a stentless or stented bioprosthesis with externally mounted leaflets [odds ratio (OR): 7.67; 95% confidence interval (CI): 3.14-18.7; P < 0.001] associated with coronary obstruction for the global population. In a second model with CT data, a shorter VTC distance predicted this complication (OR: 0.22 per 1 mm increase; 95% CI: 0.09-0.51; P < 0.001), with an optimal cut off level of 4 mm (area under the curve: 0.943; P < 0.001). Coronary obstruction was associated with a high 30-day mortality (52.9% vs. 3.9% in the controls, respectively; P < 0.001). Conclusion: Coronary obstruction following aortic ViV procedures is a life-threatening complication that occurred more frequently in patients with prior stentless or stented bioprostheses with externally mounted leaflets and in those with a short VTC. PMID- 29020415 TI - Coronary obstruction: a rare but devastating complication during transcatheter aortic valve-in-valve implantation. PMID- 29020417 TI - The Reducer device in patients with angina pectoris: mechanisms, indications, and perspectives. AB - Despite available pharmacological and interventional therapies, refractory angina is a common and disabling clinical condition, and a major public health problem, which affects patients' quality-of-life, and has a significant impact upon health care resources. Persistent angina is common not only in patients who are not good candidates for revascularization, but also in patients following successful revascularization. Clearly, there is a need for additional treatment options for refractory angina beyond currently available pharmacological and interventional therapies. It is of pivotal importance, in this condition, to practice a patient centred health assessment approach, measuring success of a new therapy by its effects on patients' symptoms, functional status, and quality-of-life, rather than hard clinical endpoints as used in clinical studies. The coronary sinus Reducer is a novel technology designed to reduce disabling symptoms and improve quality-of-life of patients suffering from refractory angina. This review serves to update the clinician as to current evidence and future perspectives of the optimal utilization of this innovative technology. PMID- 29020416 TI - Fructose metabolism, cardiometabolic risk, and the epidemic of coronary artery disease. AB - Despite strong indications that increased consumption of added sugars correlates with greater risks of developing cardiometabolic syndrome (CMS) and cardiovascular disease (CVD), independent of the caloric intake, the worldwide sugar consumption remains high. In considering the negative health impact of overconsumption of dietary sugars, increased attention is recently being given to the role of the fructose component of high-sugar foods in driving CMS. The primary organs capable of metabolizing fructose include liver, small intestine, and kidneys. In these organs, fructose metabolism is initiated by ketohexokinase (KHK) isoform C of the central fructose-metabolizing enzyme KHK. Emerging data suggest that this tissue restriction of fructose metabolism can be rescinded in oxygen-deprived environments. In this review, we highlight recent progress in understanding how fructose metabolism contributes to the development of major systemic pathologies that cooperatively promote CMS and CVD, reference recent insights into microenvironmental control of fructose metabolism under stress conditions and discuss how this understanding is shaping preventive actions and therapeutic approaches. PMID- 29020420 TI - Treatment Burden in Neovascular AMD:Visual Acuity Outcomes are Associated With Anti-VEGF Injection Frequency. PMID- 29020421 TI - Optical Coherence Tomography Angiography Findings in Punctate Inner Choroidopathy. AB - BACKGROUND AND OBJECTIVE: Punctate inner choroidopathy (PIC) is an inflammatory chorioretinopathy characterized by multiple punctate, hypopigmented fundus lesions. Optical coherence tomography angiography (OCTA) is an emerging imaging modality that enables high-resolution visualization of the retinal and choroidal vasculature. The objective of this study is to examine the OCTA findings in PIC. PATIENTS AND METHODS: Observational, retrospective review of five patients with PIC. RESULTS: OCTA revealed several features in PIC lesions: distinctly visible choroidal neovascular membranes when present, as well as flow voids within the choroid and choriocapillaris layers that correspond with hypocyanescent lesions on indocyanine green angiography. CONCLUSION: OCTA may serve as a useful adjunctive imaging modality in diagnosing and monitoring patients with PIC. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:786-792.]. PMID- 29020422 TI - A Modified Foveal Advancement Technique in the Treatment of Persistent Large Macular Holes. AB - BACKGROUND AND OBJECTIVE: To evaluate the outcomes of a new surgical technique on the closure of persistent large macular holes (MHs) PATIENTS AND METHODS:Data for 10 eyes of 10 patients who underwent surgical intervention for the treatment of large and persistent MHs were reviewed retrospectively. After entrance of the three-port transconjunctival 23-gauge sutureless vitrectomy instruments, a shallow perihole retinal detachment was formed by injecting a small amount of fluid with a 39-gauge /41-gauge subretinal cannula under the perihole (superior, temporal, and inferior sparing nasal bundle fibers) retina. Edges of the hole were brought closer with small, passive aspirations by a silicone-tipped cannula. After fluid-air exchange, a 39-gauge /41-gauge cannula was placed over the hole to remove submacular fluid. Then air was changed with 20% sulfur hexafluoride endotamponade. RESULTS: Mean minimum hole diameter was 691 MUm +/- 98 MUm (range: 500 MUm to 812 MUm), and mean basal diameter was 1,604 MUm +/- 321 MUm (range: 1,066 MUm to 2,200 MUm). Preoperative best spectacle-corrected visual acuities (BSCVAs) were lower than 20/200 in eight patients and were 20/200 in two patients. MHs were successfully closed in all eyes (100%). BSCVA did not change in two patients and were lower than 20/200. BSCVAs were 20/200 in six patients and greater than 20/200 in two patients. The ellipsoid zone (EZ) was lost in all patients. CONCLUSIONS: All the large and persistent MHs were successfully closed and stayed closed during follow-up period. However, increase in visual acuities was limited, which was related to the loss of the EZ. The authors' modified technique seems to be a good option for the surgical treatment of large and persistent MHs. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:793-798.]. PMID- 29020414 TI - Separate and combined associations of obesity and metabolic health with coronary heart disease: a pan-European case-cohort analysis. AB - Aims: The hypothesis of 'metabolically healthy obesity' implies that, in the absence of metabolic dysfunction, individuals with excess adiposity are not at greater cardiovascular risk. We tested this hypothesis in a large pan-European prospective study. Methods and results: We conducted a case-cohort analysis in the 520 000-person European Prospective Investigation into Cancer and Nutrition study ('EPIC-CVD'). During a median follow-up of 12.2 years, we recorded 7637 incident coronary heart disease (CHD) cases. Using cut-offs recommended by guidelines, we defined obesity and overweight using body mass index (BMI), and metabolic dysfunction ('unhealthy') as >= 3 of elevated blood pressure, hypertriglyceridaemia, low HDL-cholesterol, hyperglycaemia, and elevated waist circumference. We calculated hazard ratios (HRs) and 95% confidence intervals (95% CI) within each country using Prentice-weighted Cox proportional hazard regressions, accounting for age, sex, centre, education, smoking, diet, and physical activity. Compared with metabolically healthy normal weight people (reference), HRs were 2.15 (95% CI: 1.79; 2.57) for unhealthy normal weight, 2.33 (1.97; 2.76) for unhealthy overweight, and 2.54 (2.21; 2.92) for unhealthy obese people. Compared with the reference group, HRs were 1.26 (1.14; 1.40) and 1.28 (1.03; 1.58) for metabolically healthy overweight and obese people, respectively. These results were robust to various sensitivity analyses. Conclusion: Irrespective of BMI, metabolically unhealthy individuals had higher CHD risk than their healthy counterparts. Conversely, irrespective of metabolic health, overweight and obese people had higher CHD risk than lean people. These findings challenge the concept of 'metabolically healthy obesity', encouraging population wide strategies to tackle obesity. PMID- 29020419 TI - Cortical GABA in Subjects at Ultra-High Risk of Psychosis: Relationship to Negative Prodromal Symptoms. AB - Background: Whilst robust preclinical and postmortem evidence suggests that altered GABAergic function is central to the development of psychosis, little is known about whether it is altered in subjects at ultra-high risk of psychosis, or its relationship to prodromal symptoms. Methods: Twenty-one antipsychotic naive ultra-high risk individuals and 20 healthy volunteers underwent proton magnetic resonance imaging at 3T. Gamma-aminobutyric acid levels were obtained from the medial prefrontal cortex using MEGA-PRESS and expressed as peak-area ratios relative to the synchronously acquired creatine signal. Gamma-aminobutyric acid levels were then related to severity of positive and negative symptoms as measured with the Community Assessment of At-Risk Mental States. Results: Whilst we found no significant difference in gamma-aminobutyric acid levels between ultra-high risk subjects and healthy controls (P=.130), in ultra-high risk individuals, medial prefrontal cortex GABA levels were negatively correlated with the severity of negative symptoms (P=.013). Conclusion: These findings suggest that gamma-aminobutyric acidergic neurotransmission may be involved in the neurobiology of negative symptoms in the ultra-high risk state. PMID- 29020418 TI - Striatal N-Acetylaspartate Synthetase Shati/Nat8l Regulates Depression-Like Behaviors via mGluR3-Mediated Serotonergic Suppression in Mice. AB - Background: Several clinical studies have suggested that N-acetylaspartate and N acetylaspartylglutamate levels in the human brain are associated with various psychiatric disorders, including major depressive disorder. We have previously identified Shati/Nat8l, an N-acetyltransferase, in the brain using an animal model of psychosis. Shati/Nat8l synthesizes N-acetylaspartate from L-aspartate and acetyl-coenzyme A. Further, N-acetylaspartate is converted into N acetylaspartylglutamate, a neurotransmitter for metabotropic glutamate receptor 3. Methods: Because Shati/Nat8l mRNA levels were increased in the dorsal striatum of mice following the exposure to forced swimming stress, Shati/Nat8l was overexpressed in mice by the microinjection of adeno-associated virus vectors containing Shati/Nat8l gene into the dorsal striatum (dS-Shati/Nat8l mice). The dS-Shati/Nat8l mice were further assessed using behavioral and neurochemical tests. Results: The dS-Shati/Nat8l mice exhibited behavioral despair in the forced swimming and tail suspension tests and social withdrawal in the 3-chamber social interaction test. These depression-like behaviors were attenuated by the administration of a metabotropic glutamate receptor 2/3 antagonist and a selective serotonin reuptake inhibitor. Furthermore, the metabolism of N acetylaspartate to N-acetylaspartylglutamate was decreased in the dorsal striatum of the dS-Shati/Nat8l mice. This finding corresponded with the increased expression of glutamate carboxypeptidase II, an enzyme that metabolizes N acetylaspartylglutamate present in the extracellular space. Extracellular serotonin levels were lower in the dorsal striatum of the dS-Shati/Nat8l and normal mice that were repeatedly administered a selective glutamate carboxypeptidase II inhibitor. Conclusions: Our findings indicate that the striatal expression of N-acetylaspartate synthetase Shati/Nat8l plays a role in major depressive disorder via the metabotropic glutamate receptor 3-mediated functional control of the serotonergic neuronal system. PMID- 29020423 TI - Noninvasive, High-Resolution Functional Macular Imaging in Subjects With Retinal Vein Occlusion. AB - BACKGROUND AND OBJECTIVES: Several imaging modalities have been developed to characterize ischemia inherent in retinal vascular diseases. This study aims to predict the impact and to better establish the mechanisms of visual deterioration. A high-resolution functional imaging device is used, yielding quantitative data for macular blood flow and capillary network features in healthy eyes and in eyes with central retinal vein occlusion (CRVO) or branch retinal vein occlusion (BRVO). PATIENTS AND METHODS: This prospective, cross sectional, comparative case series measured blood flow velocities (BFVs) and noninvasive capillary perfusion maps (nCPMs) in macular vessels in patients with BRVO/CRVO and in healthy controls using the Retinal Function Imager (RFI; Optical Imaging, Rehovot, Israel). RESULTS: Twenty-two eyes of 21 subjects were studied (eight with CRVO, five with BRVO, and nine controls). A significant decrease was observed in the BFVs of both arterioles and venules in the affected macular region of patients with CRVO and BRVO (2.84 +/- 1.21 mm/s and 2.67 +/- 1.43 mm/s in CRVO/BRVO arterioles, respectively, vs. 4.23 +/- 1.04 mm/s in healthy controls, P < .001; and 1.64 +/- 0.51 mm/s and 1.60 +/- 0.41 mm/s in CRVO/BRVO venules, respectively, vs. 2.88 +/- 0.93 mm/s in healthy controls, P < .001). BFVs in non-affected macular regions of patients with BRVO were not statistically different from BFVs in healthy eyes (3.84 +/- 1.04 mm/s and 3.17 +/- 1.39 mm/s in BRVO patients vs. 4.23 +/- 1.04 mm/s and 2.88 +/- 0.93 mm/s in healthy controls' arterioles and venules, respectively; P >= .1). nCPMs allowed high-resolution imaging of the macular vasculature and successfully demonstrated ischemic areas in the RVO groups. CONCLUSIONS: The RFI provided high-resolution functional imaging of the retinal microvasculature and enabled quantitative measurement of BFVs in patients with RVO. Diminished flow velocity in arterioles and venules raises the possibility that RVO represents a panvascular compromise not confined to just venous stasis or its secondary arteriolar effects. The RFI offers potential to help with diagnosis and management of RVO cases. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:799-809.]. PMID- 29020424 TI - Characterization of Artifacts Associated With Multicolor Confocal Scanning Laser Ophthalmoscopy. AB - BACKGROUND AND OBJECTIVE: To characterize the appearance of three types of artifacts observed on multicolor confocal scanning laser ophthalmoscopy (cSLO). PATIENTS AND METHODS: Retrospective review of 159 eyes of 96 consecutive patients from the Duke Eye Center who underwent multicolor cSLO with spectral-domain optical coherence tomography (SD-OCT). Infrared (IR), green, blue, and multicolor reflectance images were evaluated for artifacts with corresponding SD-OCT scans available for reference. RESULTS: Multicolor cSLO artifacts were detected in 23.3% (37 of 159) of eyes and comprised three main patterns: spot, wisp, and net. Only three instances of these artifacts were detected on IR reflectance versus 34, 37, and 35 instances on green, blue, and multicolor reflectance, respectively. Artifacts were observed in 0% of eyes with clear lenses, 27.7% of eyes with cataracts, and in 20.8% of eyes with posterior chamber intraocular lenses. CONCLUSION: Awareness of spot, wisp, and net artifacts when interpreting multicolor cSLO images may facilitate the identification of true retinal pathology. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:810-815.]. PMID- 29020425 TI - Changes in Subfoveal Choroidal Thickness During Pregnancy and After Delivery. AB - BACKGROUND AND OBJECTIVE: This study was performed to investigate longitudinal changes in the subfoveal choroidal thickness (SFCT) during pregnancy and after delivery. PATIENTS AND METHODS: The SFCT was measured in the first and third trimesters, shortly after delivery, and 1 month after delivery in 25 eyes of 25 women. Enhanced depth imaging optical coherence tomography was used for measurement. RESULTS: The mean SFCT was 347 MUm +/- 86 MUm, 329 MUm +/- 81 MUm, 333 MUm +/- 81 MUm, and 330 MUm +/- 87 MUm in the first and third trimesters, shortly after delivery, and 1 month after delivery, respectively. The SFCT in the first trimester was significantly greater than that in the third trimester, shortly after delivery, and 1 month after delivery. CONCLUSIONS: This study indicates that the SFCT is greater in the first trimester and decreases in the third trimester of pregnancy. The SFCT does not subsequently change until 1 month after delivery. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:816-821.]. PMID- 29020426 TI - Aflibercept in Serous Foveal Detachment in Dome-Shaped Macula: Short-Term Results in a Retrospective Study. AB - BACKGROUND AND OBJECTIVE: To evaluate short-term efficacy of intravitreal aflibercept (Eylea; Regeneron, Tarrytown, NY) in serous foveal detachment (SFD) in dome-shaped macula (DSM). PATIENTS AND METHODS: A retrospective, noncomparative case series. Three monthly aflibercept injections were administered. Early Treatment Diabetic Retinopathy Study best-corrected visual acuity (BCVA), optical coherence tomography central subfield thickness (CST), and subretinal fluid (SRF) at baseline and at 2 months and 4 months after the last injection were considered for statistical analysis. RESULTS: The authors reviewed nine eyes affected by SFD in DSM. Mean BCVA improved from 0.42 LogMAR at baseline to 0.33 LogMAR at final follow-up (P = .06), and mean CST and SRF reduced from 347 MUm to 295 MUm (P = .09) and from 146 MUm to 99 MUm (P < .01), respectively. None of the considered eyes had resolution of the SRF. CONCLUSIONS: Three monthly aflibercept injections may improve BCVA and reduce CST and SRF in SFD of DSM. Further prospective studies are necessary to state the real efficacy of this approach. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:822-828.]. PMID- 29020427 TI - Cabbage Leaf Inverted Flap ILM Peeling for Macular Hole: A Novel Technique. AB - Large macular holes have poor surgical outcomes with conventional vitrectomy and internal limiting membrane (ILM) peeling surgery, but improved anatomical closure rates have been seen with an inverted ILM flap technique. Many studies have been reported with modifications in the original inverted ILM technique that help in better retention of the flap over the macular hole. The authors describe a new technique of inverted ILM flap in a case of chronic, large, full-thickness macular holes, in which multiple ILM flaps were inverted over each other and the hole-like cabbage leaves. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:830 832.]. PMID- 29020428 TI - Improvement of Recalcitrant Diabetic Macular Edema After Peritoneal Dialysis. AB - Nephropathy may be an independent and contributory risk factor for diabetic macular edema (DME). A 69-year-old man who had previously been treated with panretinal laser photocoagulation for proliferative diabetic retinopathy as well as with steroid and anti-vascular endothelial growth factor injections for DME declined additional treatment for the DME, which was worse in the right eye. The DME was observed without further treatment for the next 36 months. Despite well controlled blood sugar, blood pressure, and lipid levels, the DME remained unchanged. Peritoneal dialysis was started due to end-stage renal disease. Three months after commencing dialysis, the DME improved significantly. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:834-837.]. PMID- 29020429 TI - Pachychoroid Pigment Epitheliopathy Associated With Tamoxifen. AB - Pachychoroid pigment epitheliopathy (PPE) is considered to be a forme fruste of central serous chorioretinopathy. Tamoxifen (Soltamax; Midatech Pharma, Raleigh, NC) has an anti-estrogenic effect on cytoplasmic estrogen receptors. Serum total testosterone, cortisol, and cortisone levels increase during tamoxifen therapy. Tamoxifen may cause hormone disturbance leading to the development of disorders in the pachychoroid spectrum. The authors present two cases of PPE associated with tamoxifen therapy. A 65-year-old woman (Patient 1) and a 52-year-old woman (Patient 2) had a recent history of tamoxifen therapy. PPE lesions were seen in both eyes of Patient 1 and in the right eye of Patient 2. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:838-842.]. PMID- 29020430 TI - Acute Exudative Polymorphous Paraneoplastic Vitelliform Maculopathy Managed With Intravitreal Aflibercept. AB - The authors report on two patients with bilateral acute exudative polymorphous paraneoplastic vitelliform maculopathy (AEPPVM) treated with intravitreal aflibercept (Eylea; Regeneron, Tarrytown, NY [marketed locally in Turkey by Bayer]). Underlying malignancy had been treated in each case, including breast carcinoma in one case and colon carcinoma in the other case. A macular vitelliform lesion was noted in the right eye and atrophic retinal pigment epithelial (RPE) changes were noted in the left eye of each case. Enhanced depth imaging optical coherence tomography (EDI-OCT) of the vitelliform lesion showed sensorineural retinal detachment, highly reflective subretinal material, ellipsoid loss in the right eye, and photoreceptor loss in both eyes of each patient. In both cases, the right eye with a vitelliform macular lesion was treated with intravitreal aflibercept (2.0 mg/0.05 mL) at monthly intervals for the first three injections and at bimonthly intervals for the following injections. Case 1 received a total of six injections and visual acuity (VA) increased from 20/70 to 20/50 at 10 months' follow-up. EDI-OCT showed slight gradual resolution of subretinal vitelliform material. Case 2 received three injections and VA increased from 20/100 to 20/40 at 4 months' follow-up with a decrease in the subretinal vitelliform deposit and intraretinal edema on EDI-OCT. Intravitreal aflibercept may control progression of APPVME in newly diagnosed cases by decreasing vascular leakage and stabilizing RPE function. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:844-850.]. PMID- 29020431 TI - Overloaded Dysfunctional RPE Leads to Delayed Absorption of Subretinal Fluid After Retinal Detachment Repair. AB - Persistent subretinal fluid (SRF) can impair visual recovery after vitrectomy or scleral buckling surgery for rhegmatogenous retinal detachment. Several hypotheses have been proposed for delayed absorption of SRF, but the etiology has not been clearly identified. The authors present a patient with persistent SRF after vitrectomy for retinal detachment who developed central serous chorioretinopathy (CSCR) during the postoperative period in the nonoperative eye. Thus, subclinical retinal pigment epithelial (RPE) dysfunction was likely present in the operative eye, and when overloaded with SRF after retinal detachment repair, this manifested as delayed absorption. This may be the first evidence for overloaded, dysfunctional RPE as the etiology for persistent SRF following otherwise uncomplicated retinal detachment repair. The authors propose that RPE dysfunction can manifest as CSCR or, when overloaded with SRF after RD repair, it can also manifest as delayed absorption of SRF. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:852-855.]. PMID- 29020432 TI - Acquired Nonpigmented Vitreous Cyst Associated With Lattice Degeneration. AB - A 63-year-old male presented with a round-shaped floater and visual obscuration in the right eye. Clinical evaluation showed a nonpigmented vitreous cyst connected to a lattice degeneration by a stalk. Immunostaining of the vitreous cyst obtained from vitrectomy showed its origin of retinal neuroepithelium. The cyst was formed by continuous vitreous traction, which might tear up the disrupted retina at the area of lattice degeneration. This report added the lattice degeneration to the list of causes for the acquired vitreous cyst. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:856-858.]. PMID- 29020433 TI - The Impact of Switching Anti-Vascular Endothelial Growth Factor Therapy in the Management of Exudative Age-Related Macular Degeneration. AB - Switching of anti-vascular endothelial growth factor (VEGF) therapy in the management of poorly responsive exudative age-related macular degeneration (AMD) has had suggested benefits in individual reports that have yet to be consolidated. In this retrospective review, 24 studies published between 2009 and 2014 were identified. Reasons for switching included tachyphylaxis, health insurance coverage, cost issues, and nonresponse or inadequate response. Nine studies had data that could be used for comparison between studies. Median follow up was 10.6 months (range: 4.2 months to 21.8 months). Mean baseline visual acuity (VA) ranged from 0.42 logMar to 0.94 logMar (standard deviation [SD] range: 0.05 logMar to 0.50 logMar) and mean VA on final follow-up ranged from 0.38 logMar to 0.78 logMar (SD range: 0.08 logMar to 0.50 logMar). Five of nine studies reported no statistically significant change in vision, and five of nine studies reported a statistically significant improvement in central retinal thickness. This review found that switching anti-VEGF did not confer significant improvement of VA, although it provided some anatomical improvement. Pertinent considerations for evaluating response following anti-VEGF therapy are also presented in this review. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:859 869.]. PMID- 29020434 TI - 8 Questions with Darius Moshfeghi. PMID- 29020436 TI - Short-course versus long-course intravenous therapy with the same antibiotic for severe community-acquired pneumonia in children aged two months to 59 months. AB - BACKGROUND: Pneumonia is a leading cause of childhood mortality from infectious disease, responsible for an estimated 1.3 million deaths annually in children under five years of age, many of which are in low-income countries. The World Health Organization recommends intravenous antibiotics for five days as first line treatment for children with severe pneumonia. Although controversy exists regarding the specific clinical features used to diagnose pneumonia, the criteria for diagnosis of severe pneumonia are better defined and are widely used to triage children for referral and second-line therapy.In 2011 it was estimated that approximately 120 million new cases of pneumonia occur globally each year in children under five years of age, of which 14 million become severe episodes. Hospitalisation for severe pneumonia in children places a significant burden on both patients and their families, including substantial expense, loss of routine, and decrease in quality of life. By reducing the duration of hospital treatment, healthcare burdens could potentially be reduced and treatment compliance may improve.This is an update of a review published in 2015. OBJECTIVES: To evaluate the efficacy of short-course (two to three days) versus long-course (five days) intravenous therapy (alone or in combination with oral antibiotics) with the same antibiotic for severe community-acquired pneumonia in children aged two months to 59 months. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL; 2016, Issue 12), MEDLINE (1966 to December week 3, 2016), Embase (1974 to 22 December 2016), and four trials registers (23 August 2017), together with reference checking of all relevant trials and reviews. SELECTION CRITERIA: Randomised controlled trials evaluating the efficacy of short course (two to three days) versus long-course (five days) intravenous antibiotic therapy (alone or in combination with oral antibiotics) for severe pneumonia in children aged two months to 59 months. We excluded children with any other debilitating disease, including those infected with HIV. We also excluded children who had developed pneumonia during their hospital stay (i.e. with nosocomial infection). There was no restriction on the type of antibiotic used, the dose, or the frequency of dosing. DATA COLLECTION AND ANALYSIS: We used standard methodological procedures expected by Cochrane. MAIN RESULTS: Our searches identified 4295 records, however no studies met our predefined inclusion criteria. AUTHORS' CONCLUSIONS: We identified no randomised controlled trials comparing a short course (two to three days) of intravenous antibiotics compared to a long course (five days) for severe pneumonia in children aged two months to 59 months that met our inclusion criteria. PMID- 29020435 TI - Blood pressure targets for the treatment of people with hypertension and cardiovascular disease. AB - BACKGROUND: Hypertension is a prominent preventable cause of premature morbidity and mortality. People with hypertension and established cardiovascular disease are at particularly high risk, so reducing blood pressure below standard targets may be beneficial. This strategy could reduce cardiovascular mortality and morbidity but could also increase adverse events. The optimal blood pressure target in people with hypertension and established cardiovascular disease remains unknown. OBJECTIVES: To determine if 'lower' blood pressure targets (<= 135/85 mmHg) are associated with reduction in mortality and morbidity as compared with 'standard' blood pressure targets (<= 140 to 160/ 90 to 100 mmHg) in the treatment of people with hypertension and a history of cardiovascular disease (myocardial infarction, angina, stroke, peripheral vascular occlusive disease). SEARCH METHODS: The Cochrane Hypertension Information Specialist searched the following databases for randomized controlled trials up to February 2017: the Cochrane Hypertension Specialised Register, the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (from 1946), Embase (from 1974), the World Health Organization International Clinical Trials Registry Platform, and ClinicalTrials.gov. We also searched the Latin American and Caribbean Health Science Literature Database (from 1982) and contacted authors of relevant papers regarding further published and unpublished work. There were no language restrictions. SELECTION CRITERIA: We included randomized controlled trials (RCTs) with more than 50 participants per group and at least six months follow-up. Trial reports needed to present data for at least one primary outcome (total mortality, serious adverse events, total cardiovascular events, cardiovascular mortality). Eligible interventions were lower target for systolic/diastolic blood pressure (<= 135/85 mmHg) compared with standard target for blood pressure (<= 140 to 160/90 to 100 mmHg).Participants were adults with documented hypertension or who were receiving treatment for hypertension and cardiovascular history for myocardial infarction, stroke, chronic peripheral vascular occlusive disease or angina pectoris. DATA COLLECTION AND ANALYSIS: Two review authors independently assessed search results and extracted data using standard methodological procedures expected by The Cochrane Collaboration. MAIN RESULTS: We included six RCTs that involved a total of 9795 participants. Mean follow-up was 3.7 years (range 1.0 to 4.7 years). Five RCTs provided individual patient data for 6775 participants.We found no change in total mortality (RR 1.05, 95% CI 0.90 to 1.22) or cardiovascular mortality (RR 0.96, 95% CI 0.77 to 1.21; moderate-quality evidence). Similarly, no differences were found in serious adverse events (RR 1.02, 95% CI 0.95 to 1.11; low-quality evidence). There was a reduction in fatal and non fatal cardiovascular events (including myocardial infarction, stroke, sudden death, hospitalization or death from congestive heart failure) with the lower target (RR 0.87, 95% CI 0.78 to 0.98; ARR 1.6% over 3.7 years; low-quality evidence). There were more participant withdrawals due to adverse effects in the lower target arm (RR 8.16, 95% CI 2.06 to 32.28; very low-quality evidence). Blood pressures were lower in the lower' target group by 9.5/4.9 mmHg. More drugs were needed in the lower target group but blood pressure targets were achieved more frequently in the standard target group. AUTHORS' CONCLUSIONS: No evidence of a difference in total mortality and serious adverse events was found between treating to a lower or to a standard blood pressure target in people with hypertension and cardiovascular disease. This suggests no net health benefit from a lower systolic blood pressure target despite the small absolute reduction in total cardiovascular serious adverse events. There was very limited evidence on adverse events, which lead to high uncertainty. At present there is insufficient evidence to justify lower blood pressure targets (<= 135/85 mmHg) in people with hypertension and established cardiovascular disease. More trials are needed to answer this question. PMID- 29020437 TI - Does testosterone therapy raise the risk of VTE? PMID- 29020439 TI - Nonleachable Imidazolium-Incorporated Composite for Disruption of Bacterial Clustering, Exopolysaccharide-Matrix Assembly, and Enhanced Biofilm Removal. AB - Surface-grown bacteria and production of an extracellular polymeric matrix modulate the assembly of highly cohesive and firmly attached biofilms, making them difficult to remove from solid surfaces. Inhibition of cell growth and inactivation of matrix-producing bacteria can impair biofilm formation and facilitate removal. Here, we developed a novel nonleachable antibacterial composite with potent antibiofilm activity by directly incorporating polymerizable imidazolium-containing resin (antibacterial resin with carbonate linkage; ABR-C) into a methacrylate-based scaffold (ABR-modified composite; ABR MC) using an efficient yet simplified chemistry. Low-dose inclusion of imidazolium moiety (~2 wt %) resulted in bioactivity with minimal cytotoxicity without compromising mechanical integrity of the restorative material. The antibiofilm properties of ABR-MC were assessed using an exopolysaccharide-matrix producing (EPS-matrix-producing) oral pathogen (Streptococcus mutans) in an experimental biofilm model. Using high-resolution confocal fluorescence imaging and biophysical methods, we observed remarkable disruption of bacterial accumulation and defective 3D matrix structure on the surface of ABR-MC. Specifically, the antibacterial composite impaired the ability of S. mutans to form organized bacterial clusters on the surface, resulting in altered biofilm architecture with sparse cell accumulation and reduced amounts of EPS matrix (versus control composite). Biofilm topology analyses on the control composite revealed a highly organized and weblike EPS structure that tethers the bacterial clusters to each other and to the surface, forming a highly cohesive unit. In contrast, such a structured matrix was absent on the surface of ABR-MC with mostly sparse and amorphous EPS, indicating disruption in the biofilm physical stability. Consistent with lack of structural organization, the defective biofilm on the surface of ABR-MC was readily detached when subjected to low shear stress, while most of the biofilm biomass remained on the control surface. Altogether, we demonstrate a new nonleachable antibacterial composite with excellent antibiofilm activity without affecting its mechanical properties, which may serve as a platform for development of alternative antifouling biomaterials. PMID- 29020440 TI - Influence of DNA Lesions on Polymerase-Mediated DNA Replication at Single Molecule Resolution. AB - Faithful replication of DNA is a critical aspect in maintaining genome integrity. DNA polymerases are responsible for replicating DNA, and high-fidelity polymerases do this rapidly and at low error rates. Upon exposure to exogenous or endogenous substances, DNA can become damaged and this can alter the speed and fidelity of a DNA polymerase. In this instance, DNA polymerases are confronted with an obstacle that can result in genomic instability during replication, for example, by nucleotide misinsertion or replication fork collapse. It is important to know how DNA polymerases respond to damaged DNA substrates to understand the mechanism of mutagenesis and chemical carcinogenesis. Single-molecule techniques have helped to improve our current understanding of DNA polymerase-mediated DNA replication, as they enable the dissection of mechanistic details that can otherwise be lost in ensemble-averaged experiments. These techniques have also been used to gain a deeper understanding of how single DNA polymerases behave at the site of the damage in a DNA substrate. In this review, we evaluate single molecule studies that have examined the interaction between DNA polymerases and damaged sites on a DNA template. PMID- 29020441 TI - Three-Dimensional Printing of Nano Hydroxyapatite/Poly(ester urea) Composite Scaffolds with Enhanced Bioactivity. AB - Polymer-bioceramic composites incorporate the desirable properties of each material while mitigating the limiting characteristics of each component. 1,6 Hexanediol l-phenylalanine-based poly(ester urea) (PEU) blended with hydroxyapatite (HA) nanocrystals were three-dimensional (3D) printed into porous scaffolds (75% porosity) via fused deposition modeling and seeded with MC3T3-E1 preosteoblast cells in vitro to examine their bioactivity. The resulting 3D printed scaffolds exhibited a compressive modulus of ~50 MPa after a 1-week incubation in PBS at 37 degrees C, cell viability >95%, and a composition dependent enhancement of radio-contrast. The influence of HA on MC3T3-E1 proliferation and differentiation was measured using quantitative real-time polymerase chain reaction, immunohistochemistry and biochemical assays. After 4 weeks, alkaline phosphatase activity increased significantly for the 30% HA composite with values reaching 2.5-fold greater than the control. Bone sialoprotein showed approximately 880-fold higher expression and 15-fold higher expression of osteocalcin on the 30% HA composite compared to those of the control. Calcium quantification results demonstrated a 185-fold increase of calcium concentration in mineralized extracellular matrix deposition after 4 weeks of cell culture in samples with higher HA content. 3D printed HA-containing PEU composites promote bone regeneration and have the potential to be used in orthopedic applications. PMID- 29020442 TI - Two-Photon Photosensitizer-Polymer Conjugates for Combined Cancer Cell Death Induction and Two-Photon Fluorescence Imaging: Structure/Photodynamic Therapy Efficiency Relationship. AB - One of the challenges of photodynamic therapy is to increase the penetration depth of light irradiation in the tumor tissues. Although two-photon excitation strategies have been developed, the two-photon absorption cross sections of clinically used photosensitizers are generally low (below 300 GM). Besides, photosensitizers with high cross section values are often non-water-soluble. In this research work, a whole family of photosensitizer-polymer conjugates was synthesized via the covalent binding of a photosensitizer with a relatively high cross section along a biocompatible copolymer chain. The resulting photosensitizer-polymer conjugates were water-soluble and could be imaged in cellulo by two-photon microscopy thanks to their high two-photon absorption cross sections (up to 2600 GM in water, in the NIR range). In order to explore the structure/photodynamic activity relationship of such macromolecular photosensitizers, the influence of the polymer size, photosensitizer density, and presence of charges along the polymer backbone was investigated (neutral, anionic, cationic, and zwitterionic conjugates were compared). The macromolecular photosensitizers were not cytotoxic in the absence of light irradiation. Their kinetics of cellular uptake in the B16-F10 melanoma cell line were followed by flow cytometry over 24 h. The efficiency of cell death upon photoactivation was found to be highly correlated to the cellular uptake in turn correlated to the global charge of the macromolecular photosensitizer which appeared as the determining structural parameter. PMID- 29020443 TI - Solution Conformation of Polymer Brushes Determines Their Interactions with DNA and Transfection Efficiency. AB - Polymer brush-functionalized nanomaterials offer interesting features for the design of gene delivery vectors as their physicochemical and structural properties can be designed independently of the chemistry, size and shape of the nanomaterial core. However, little is known of the parameters regulating the adsorption and infiltration of DNA molecules at the surface of positively charged polymer brushes, despite the importance of such processes for gene delivery. Here we investigate the role of the molecular environment (e.g., pH, type of buffer, concentration) on the interactions between plasmid DNA and positively charged poly(dimethylaminoethyl methacrylate) (PDMAEMA) brushes using a combination of light scattering, electrophoretic light scattering, in situ ellipsometry, and surface plasmon resonance. We show that the conformation of swollen PDMAEMA brushes is modulated by the surrounding buffer and that this impacts strongly on the ability of such brushes and nanomaterials based on these coatings to complex DNA molecules. In turn, the levels of transfection efficiency measured correlate with changes in brush conformation and DNA binding. Therefore, this work demonstrates the importance of molecular design of polymer brushes to control DNA complexation and release in order to optimize the performance of polymer brush functionalized nanomaterials for gene delivery applications. PMID- 29020444 TI - Biologically Complex Planar Cell Plasma Membranes Supported on Polyelectrolyte Cushions Enhance Transmembrane Protein Mobility and Retain Native Orientation. AB - Reconstituted supported lipid bilayers (SLB) are widely used as in vitro cell surface models because they are compatible with a variety of surface-based analytical techniques. However, one of the challenges of using SLBs as a model of the cell surface is the limited complexity in membrane composition, including the incorporation of transmembrane proteins and lipid diversity that may impact the activity of those proteins. Additionally, it is challenging to preserve the transmembrane protein native orientation, function, and mobility in SLBs. Here, we leverage the interaction between cell plasma membrane vesicles and polyelectrolyte brushes to create planar bilayers from cell plasma membrane vesicles that have budded from the cell surface. This approach promotes the direct incorporation of membrane proteins and other species into the planar bilayer without using detergent or reconstitution and preserves membrane constituents. Furthermore, the structure of the polyelectrolyte brush serves as a cushion between the planar bilayer and rigid supporting surface, limiting the interaction of the cytosolic domains of membrane proteins with this surface. Single particle tracking was used to analyze the motion of GPI-linked yellow fluorescent proteins (GPI-YFP) and neon-green fused transmembrane P2X2 receptors (P2X2-neon) and shows that this platform retains over 75% mobility of multipass transmembrane proteins in its native membrane environment. An enzyme accessibility assay confirmed that the protein orientation is preserved and results in the extracellular domain facing toward the bulk phase and the cytosolic side facing the support. Because the platform presented here retains the complexity of the cell plasma membrane and preserves protein orientation and mobility, it is a better representative mimic of native cell surfaces, which may find many applications in biological assays aimed at understanding cell membrane phenomena. PMID- 29020445 TI - Direct Metal Writing and Precise Positioning of Gold Nanoparticles within Microfluidic Channels for SERS Sensing of Gaseous Analytes. AB - We demonstrate a one-step precise direct metal writing of well-defined and densely packed gold nanoparticle (AuNP) patterns with tunable physical and optical properties. We achieve this by using two-photon lithography on a Au precursor comprising poly(vinylpyrrolidone) (PVP) and ethylene glycol (EG), where EG promotes higher reduction rates of Au(III) salt via polyol reduction. Hence, clusters of monodisperse AuNP are generated along raster scanning of the laser, forming high-particle-density, well-defined structures. By varying the PVP concentration, we tune the AuNP size from 27.3 to 65.0 nm and the density from 172 to 965 particles/MUm2, corresponding to a surface roughness of 12.9 to 67.1 nm, which is important for surface-based applications such as surface-enhanced Raman scattering (SERS). We find that the microstructures exhibit an SERS enhancement factor of >105 and demonstrate remote writing of well-defined Au microstructures within a microfluidic channel for the SERS detection of gaseous molecules. We showcase in situ SERS monitoring of gaseous 4-methylbenzenethiol and real-time detection of multiple small gaseous species with no specific affinity to Au. This one-step, laser-induced fabrication of AuNP microstructures ignites a plethora of possibilities to position desired patterns directly onto or within most surfaces for the future creation of multifunctional lab-on-a-chip devices. PMID- 29020447 TI - Efficiently Synergistic Hydrogen Evolution Realized by Trace Amount of Pt Decorated Defect-Rich SnS2 Nanosheets. AB - The electrocatalytic hydrogen evolution reaction (HER) has attracted increasing attention in the field of hydrogen-based economy, whereat developing cheap and efficient catalysts to reduce the use of Pt-based catalysts is highly required. Tin disulfide (SnS2) as a new rising star has exhibited intriguing properties in energy storage and conversion applications, while showing slow progress in HER due to the inherent poor activity. Herein, we demonstrate the successful structural engineering and simultaneous integration of trace amount Pt in SnS2 nanosheets via a facile and effective in situ cycling voltammetry activation process, leading to the efficiently synergistic HER. Defect-rich SnS2 nanosheets decorated with a trace amount (0.37 wt %) of Pt exhibit greatly enhanced HER activity due to the synergy between them, revealing low onset potential of 32 mV and overpotential of 117 mV at 10 mA/cm2, small Tafel slope of 69 mV/dec, and large exchange current density of 394.46 MUA/cm2. Present work provides an intriguing strategy for developing ultralow loading Pt electrocatalysts with high HER performance. PMID- 29020446 TI - Desymmetrization of Diarylmethylamido Bis(phenols) through Peptide-Catalyzed Bromination: Enantiodivergence as a Consequence of a 2 amu Alteration at an Achiral Residue within the Catalyst. AB - Diarylmethylamido bis(phenols) have been subjected to peptide-catalyzed, enantioselective bromination reactions. Desymmetrization of compounds in this class has been achieved such that enantioenriched products may be isolated with up to 97:3 er. Mechanistically, the observed enantioselectivity was shown to be primarily a function of differential functionalization of enantiotopic arenes, although additional studies unveiled a contribution from secondary kinetic resolution of the product (to afford the symmetrical dibromide) under the reaction conditions. Variants of the tetrapeptide catalyst were also evaluated and revealed a striking observation-enantiodivergent catalysis is observed upon changing the achiral amino acid residue in the catalyst (at the i+2 position) from an aminocyclopropane carboxamide residue (97:3 er) to an aminoisobutyramide residue (33:67 er) under a common set of conditions. An expanded set of catalysts was also evaluated, enabling structure/selectivity correlations to be considered in a mechanistic light. PMID- 29020449 TI - Light-Induced Reactions of Diazotetrahydrofuranone without Elimination of Nitrogen: Experimental and Mechanistic Study. AB - The energies and lifetimes of the excited states (S1, S2, S5, T1) of a diazotetrahydrofuranone were determined using experimental and computational methods. It was shown that direction of the diazoketone photochemical transformations without elimination of nitrogen is determined by multiplicity and energy of the excited state, generated by UV irradiation of diazo compound: isomerization to alpha-ketodiazirine proceeds from the singlet S1 state, whereas the alternative process of C-H insertion with hydrazone formation occurs through the triplet T1 state. The most probable excited state that leads to elimination of nitrogen and Wolff rearrangement is one of the highest singlet excited states of diazotetrahydrofuranone. PMID- 29020448 TI - Preparation of Tc99m-Labeled Pseudomonas Bacteriophage without Adversely Impacting Infectivity or Biodistribution. AB - Bacteriophages (phages) are ubiquitous viruses which have adapted to infect and replicate within target bacteria, their only known hosts, in a strain specific fashion with minimal cross infectivity. The recent steep rise in antibiotic resistance throughout the world has renewed interest in adapting phages for the imaging and treatment of bacterial infection in humans. In this article, we describe the current limitations surrounding the radiolabeling of phage for the imaging and treatment of bacterial infection and methods to overcome these difficulties. Specifically, we examined the effects of hydrazinonicotinamide conjugation and removal of bacterial DNA on the infectivity, biodistribution, and radionuclide imaging of a phage lytic for a clinically relevant strain of Pseudomonas aeruginosa, a common Gram-negative bacterial pathogen often resistant to multiple antibiotics. We found that all but the briefest reaction of concentrated phage with hydrazinonicotinamide (<=3 min) resulted in nearly complete loss of infectivity. Furthermore, we determined that digestion and removal of bacterial DNA was needed to avoid high nonspecific uptake of hydrazinonicotinamide-labeled phage within the liver and spleen as well as prolonged circulation in the blood. We also demonstrate the surprisingly wide soft tissue and organ biodistribution and rapid pharmacokinetics of 99mTc hydrazinonicotinamide-labeled phage in normal mice as well as its imaging characteristics and efficacy in wounded mice infected with bioluminescent Pseudomonas aeruginosa. In conclusion, the preservation of phage infectivity and removal of all bacterial containments including DNA are critical methodologic considerations in the labeling of phages for imaging and therapy. PMID- 29020451 TI - Diastereoselective Desymmetrization of Prochiral Cyclopentenediones via Cycloaddition Reaction with N-Phenacylbenzothiazolium Bromides. AB - A metal-free highly diastereoselctive [3 + 2] cycloaddition reaction has been developed between N-phenacylbenzothiazolium bromides and prochiral cyclopentene 1,3-diones. The active 1,3 dipole benzothiazolium N-phenacylide was generated in situ with the treatment of DIPEA, and the corresponding cycloaddition products were obtained in excellent yields under mild reaction conditions. The scope of the reaction is quite broad, tolerating a variety of aryl and heteroaromatic groups. A catalytic asymmetric approach was also studied preliminarily, and moderate enantioselectivity was achieved. PMID- 29020450 TI - Highly Effective Antibacterial Vesicles Based on Peptide-Mimetic Alternating Copolymers for Bone Repair. AB - It is an important challenge for bone repair to effectively deliver growth factors and at the same time to prevent and cure inflammation without obvious pathogen resistance. We designed a kind of antibacterial peptide-mimetic alternating copolymers (PMACs) to effectively inhibit and kill both Gram-positive and Gram-negative bacteria. The minimum inhibition concentrations (MICs) of the PMACs against E. coli and S. aureus are 8.0 MUg/mL, which are much lower than that of antibacterial peptides synthesized by other methods such as widely used ring-opening polymerization of N-carboxyanhydride. Furthermore, the PMACs can self-assemble into polymer vesicles (polymersomes) in pure water with low cytotoxicity (IC50 > 1000 MUg/mL), which can encapsulate growth factors in aqueous solution and release them during long-term antibacterial process for facilitating bone repair. We also find that the alternating structure is essential for the excellent antibacterial activity. The in vivo tests in rabbits confirmed that the growth-factor-encapsulated antibacterial vesicles have better bone repair ability compared with control groups without antibacterial vesicles. Overall, we have provided a novel method for designing PMAC-based highly effective intrinsically antibacterial vesicles that may have promising biomedical applications in the future. PMID- 29020452 TI - Heterogeneous Ice Nucleation: Interplay of Surface Properties and Their Impact on Water Orientations. AB - Ice is ubiquitous in nature, and heterogeneous ice nucleation is the most common pathway of ice formation. How surface properties affect the propensity to observe ice nucleation on that surface remains an open question. We present results of molecular dynamics studies of heterogeneous ice nucleation on model surfaces. The models surfaces considered emulate the chemistry of kaolinite, an abundant component of mineral dust. We investigate the interplay of surface lattice and hydrogen bonding properties in affecting ice nucleation. We find that lattice matching and hydrogen bonding are necessary but not sufficient conditions for observing ice nucleation at these surfaces. We correlate this behavior to the orientations sampled by the metastable supercooled water in contact with the surfaces. We find that ice is observed in cases where water molecules not only sample orientations favorable for bilayer formation but also do not sample unfavorable orientations. This distribution depends on both surface-water and water-water interactions and can change with subtle modifications to the surface properties. Our results provide insights into the diverse behavior of ice nucleation observed at different surfaces and highlight the complexity in elucidating heterogeneous ice nucleation. PMID- 29020456 TI - The management of neuroendocrine tumours: A nutritional viewpoint. AB - Nutritional status in patients with neuroendocrine tumours (NETs), especially of gastroenteropancreatic origin, can be deeply affected by excessive production of gastrointestinal hormones, peptides, and amines, which can lead to malabsorption, diarrhoea, steatorrhea, and altered gastrointestinal motility. Besides, the surgical and/or medical management of NETs can lead to alteration of gastrointestinal secretory, motor, and absorptive functions, with both dietary and nutritional consequences. Indeed, disease-related malnutrition is a frequently encountered yet both underrecognized and understudied clinical phenomenon in patients with NETs, with substantial prognostic and socioeconomic consequences. Most of these conditions can be alleviated by a tailored nutritional approach, also with the aim of improving the efficacy of cancer treatments. In this setting, skilled nutritionists can play a fundamental role in the multidisciplinary health care team in NETs management and their presence should be recommended. The aim of this review is to provide dietary advices for each specific condition in patients with NETs, underlining the importance of a nutritional approach to treat malnutrition in this setting. Further, we will provide preliminary evidence coming from our data on the assessment of nutritional status in a single cohort of patients with NETs. PMID- 29020455 TI - The U.S. Food and Drug Administration's Experience with Ivacaftor in Cystic Fibrosis. Establishing Efficacy Using In Vitro Data in Lieu of a Clinical Trial. AB - On May 17, 2017, the U.S. Food and Drug Administration expanded the patient population for use of ivacaftor to include patients with cystic fibrosis with relatively rare mutations in the cystic fibrosis transmembrane conductance regulator gene. The label expansion is unique in that clinical efficacy was not based on clinical data but on in vitro assay data demonstrating increased chloride ion transport across cells in response to ivacaftor. Such an approach provides a pathway for adding difficult-to-study mutation-based cystic fibrosis subpopulations to the indication as well as defining mutations unresponsive to ivacaftor and has important implications for cystic fibrosis drug development and other rare genetic diseases whose genetics and disease pathophysiology are well understood. PMID- 29020454 TI - The absence of brain-specific link protein Bral2 in perineuronal nets hampers auditory temporal resolution and neural adaptation in mice. AB - Brain-specific link protein Bral2 represents a substantial component of perineuronal nets (PNNs) enwrapping neurons in the central nervous system. To elucidate the role of Bral2 in auditory signal processing, the hearing function in knockout Bral2(-/-) (KO) mice was investigated using behavioral and electrophysiological methods and compared with wild type Bral2(+/+) (WT) mice. The amplitudes of the acoustic startle reflex (ASR) and the efficiency of the prepulse inhibition of ASR (PPI of ASR), produced by prepulse noise stimulus or gap in continuous noise, was similar in 2-week-old WT and KO mice. Over the 2 month postnatal period the increase of ASR amplitudes was significantly more evident in WT mice than in KO mice. The efficiency of the PPI of ASR significantly increased in the 2-month postnatal period in WT mice, whereas in KO mice the PPI efficiency did not change. Hearing thresholds in 2-month-old WT mice, based on the auditory brainstem response (ABR) recordings, were significantly lower at high frequencies than in KO mice. However, amplitudes and peak latencies of individual waves of click-evoked ABR did not differ significantly between WT and KO mice. Temporal resolution and neural adaptation were significantly better in 2-month-old WT mice than in age-matched KO mice. These results support a hypothesis that the absence of perineuronal net formation at the end of the developmental period in the KO mice results in higher hearing threshold at high frequencies and weaker temporal resolution ability in adult KO animals compared to WT mice. PMID- 29020457 TI - The Public Health Conundrum of Coal Mining. PMID- 29020453 TI - Small Angle Neutron Scattering Studies of R67 Dihydrofolate Reductase, a Tetrameric Protein with Intrinsically Disordered N-Termini. AB - R67 dihydrofolate reductase (DHFR) is a homotetramer with a single active site pore and no sequence or structural homology with chromosomal DHFRs. The R67 enzyme provides resistance to trimethoprim, an active site-directed inhibitor of Escherichia coli DHFR. Sixteen to twenty N-terminal amino acids are intrinsically disordered in the R67 dimer crystal structure. Chymotrypsin cleavage of 16 N terminal residues results in an active enzyme with a decreased stability. The space sampled by the disordered N-termini of R67 DHFR was investigated using small angle neutron scattering. From a combined analysis using molecular dynamics and the program SASSIE ( http://www.smallangles.net/sassie/SASSIE_HOME.html ), the apoenzyme displays a radius of gyration (Rg) of 21.46 +/- 0.50 A. Addition of glycine betaine, an osmolyte, does not result in folding of the termini as the Rg increases slightly to 22.78 +/- 0.87 A. SASSIE fits of the latter SANS data indicate that the disordered N-termini sample larger regions of space and remain disordered, suggesting they might function as entropic bristles. Pressure perturbation calorimetry also indicated that the volume of R67 DHFR increases upon addition of 10% betaine and decreased at 20% betaine because of the dehydration of the protein. Studies of the hydration of full-length R67 DHFR in the presence of the osmolytes betaine and dimethyl sulfoxide find around 1250 water molecules hydrating the protein. Similar studies with truncated R67 DHFR yield around 400 water molecules hydrating the protein in the presence of betaine. The difference of ~900 waters indicates the N-termini are well-hydrated. PMID- 29020458 TI - Phytoremediation of lead by a wild, non-edible Pb accumulator Coronopus didymus (L.) Brassicaceae. AB - Coronopus didymus was examined in terms of its ability to remediate Pb contaminated soils. Pot experiments were conducted for 4 and 6 weeks to compare the growth, biomass, photosynthetic efficiency, lead (Pb) uptake, and accumulation by C. didymus plants. The plants grew well having no visible toxic symptoms and 100% survivability, exposed to different Pb-spiked soils 100, 350, 1500, and 2500 mg kg-1, supplied as lead nitrate. After 4 weeks, root and shoot concentrations reached 1652 and 502 mg Pb kg-1 DW, while after 6 weeks they increased up to 3091 and 527 mg Pb kg-1 DW, respectively, at highest Pb concentration. As compared to the 4 week experiments, the plant growth and biomass yield were higher after 6 weeks of Pb exposure. However, the chlorophyll content of leaves decreased but only a slight decline in photosynthetic efficiency was observed on exposure to Pb at both 4 and 6 weeks. The Pb accumulation was higher in roots than in the shoots. The bioconcentration factor of Pb was > 1 in all the plant samples, but the translocation factor was < 1. This suggested C. didymus as a good candidate for phytoremediation of Pb contaminated soils and can be used for future remediation purposes. PMID- 29020459 TI - Effect of pre-harvest and post-harvest conditions on the fruit allergenicity: A review. AB - Fruits are an important source of vitamins and antioxidants that can effectively delay aging and contribute to health and well-being of the human kind. However, they are growing to be one of the primary elicitors of food allergies around the world. Fruit allergens can induce an IgE-mediated (Immunoglobulin E) reaction, presenting with a symptom like localized oral allergy syndrome (OAS). Numerous studies showed that varying environmental and cultivation conditions can influence the fruit allergen content during flowering and ripening stages. Further, the variety, harvesting maturity, and storage conditions can also significantly influence the allergenicity potential. For example, unripe apples and tomatoes have lower levels of allergens compared to ripened fruits. Researchers have also reported that modified atmosphere packaging (MAP) can help reduce Mal d 3 content present in apples during storage. Post-harvest processing like peeling is also considered a good method to help reduce the overall allergenicity in few fruits whose peel might contain majority of the allergens. This review will discuss the overall influence of both pre-harvest and post harvest factors on the fruit allergens. We will also discuss the progress regarding the cause, symptoms and diagnostic methods of fruit based allergies. PMID- 29020460 TI - Toxoplasma gondii infection and food consumption: A systematic review and meta analysis of case-controlled studies. AB - BACKGROUND: Toxoplasmosis is a zoonotic disease causing severe symptoms in pregnant women and immunocompromised individuals. On average, worldwide, around 30% of people are seropositive. The oral transmission route is of great significance and food, particularly meat, is an important transmission vehicle for T. gondii. However, the role of different food matrices is debated. OBJECTIVES: The aim of this review was to assess the risk of humans developing acute T. gondii infection via the foodborne route. STUDY ELIGIBILITY CRITERIA: Case-control studies including acute cases of T. gondii infection were included after literature searches, without time limits, in several databases. All studies estimating the risk of acquiring T. gondii infection after consumption of specific food categories were included. RESULTS: Three risk factors proved to be significantly associated with acute T. gondii infection in humans: consumption of raw/undercooked meat, Odds Ratio (OR) 3.44 (1.29-9.16), consumption of raw/undercooked beef, OR 2.22 (1.57-3.12), and consumption of raw/undercooked sheep meat, OR 3.85 (1.85-8.00). Consumption of raw/undercooked pork, raw eggs, and unpasteurized milk proved to be non-significant risk factors. LIMITATIONS: Limitations in the present review and meta-analysis are due to the low number of case-control studies available for analysis and the lack of a search strategy targeting gray literature. CONCLUSION: Consumption of raw/undercooked beef and sheep meat are important risk factors for T. gondii infection. Their consumption should be avoided in order to prevent toxoplasmosis, particularly by those in at risk categories, including pregnant women. The review protocol is registered in PROSPERO database (CRD42016043295). PMID- 29020461 TI - Peptides: Production, bioactivity, functionality, and applications. AB - Production of peptides with various effects from proteins of different sources continues to receive academic attention. Researchers of different disciplines are putting increasing efforts to produce bioactive and functional peptides from different sources such as plants, animals, and food industry by-products. The aim of this review is to introduce production methods of hydrolysates and peptides and provide a comprehensive overview of their bioactivity in terms of their effects on immune, cardiovascular, nervous, and gastrointestinal systems. Moreover, functional and antioxidant properties of hydrolysates and isolated peptides are reviewed. Finally, industrial and commercial applications of bioactive peptides including their use in nutrition and production of pharmaceuticals and nutraceuticals are discussed. PMID- 29020462 TI - Syk inhibitor R406 downregulates inflammation in an in vitro model of Pseudomonas aeruginosa infection. AB - As Pseudomonas aeruginosa infections are characterized by strong inflammation of infected tissues, anti-inflammatory therapies in combination with antibiotics have been considered for the treatment of associated diseases. Syk tyrosine kinase is an important regulator of inflammatory responses, and its specific inhibition was explored as a therapeutic option in several inflammatory conditions; however, this has not been studied in bacterial infections. We used a model of in vitro infection of human monocytic cell line THP-1 and lung epithelial cell line H292 with both wild-type and flagella-deficient mutant of P. aeruginosa strain K, as well as with clinical isolates from cystic fibrosis patients, to study the effect of a small molecule Syk inhibitor R406 on inflammatory responses induced by this pathogen. One-hour pretreatment of THP-1 cells with 10 MUmol/L R406 resulted in a significant downregulation of the expression of the adhesion molecule ICAM-1, pro-inflammatory cytokines TNF-alpha and IL-1beta, and phosphorylated signaling proteins ERK2, JNK, p-38, and IkappaBalpha, as well as significantly decreased TNF-alpha release by infected H292 cells. The results suggest that Syk is involved in the regulation of inflammatory responses to P. aeruginosa, and R406 may potentially be useful in dampening the damage caused by severe inflammation associated with this infection. PMID- 29020464 TI - Invited Commentary. The Royalty of Evidence: The Randomized Control Trials. PMID- 29020463 TI - The role of human rhinovirus (HRV) species on asthma exacerbation severity in children and adolescents. AB - OBJECTIVE: It is recognized that human rhinovirus (HRV) infection is an important factor in asthma exacerbations requiring hospitalization in children. However, previous studies have disagreed on the differential impact of various HRV species. We sought to assess the impact of HRV species on the severity of asthma exacerbations in children and adolescents. We also examined whether the effect of HRV species on severity was modified by age and gender. METHODS: Virus strain was determined for 113 children with HRV detectable at the time of admission for asthma exacerbation. Patient characteristics were collected on admission and exacerbation severity was scored using several validated scales. RESULTS: HRV species by itself was not associated with moderate/severe vs. mild exacerbations. Boys with HRV-C infections were more likely (OR: 3.7, 95% CI: 1.2-13.4) to have a moderate/severe exacerbation than girls with HRV-C (p = 0.04 for interaction term). Higher odds were observed in younger boys (3 years old: OR: 9.1, 95% CI: 1.8-47.1 vs 5 years old: OR: 3.3, 95% CI: 0.9-11.8 vs 7 years old: OR: 1.2, 95% CI: 0.2-6.6). In contrast, children with HRV-C infection and sensitized to pollen during the pollen season were less likely to have moderate/severe exacerbations (p = 0.01 for the interaction term). CONCLUSION: Acute asthma exacerbations are more likely to be moderate/severe in boys under 5 years of age who had HRV-C infection on admission. The opposite was found in children with sensitization to pollen during pollen season. PMID- 29020465 TI - Donor sperm insemination after failed intra-couple intracytoplasmic sperm injection. AB - : The purpose of the present multicenter study was to investigate whether an artificial insemination with donor sperm (AID) procedure after intra-couple intracytoplasmic sperm injection (ICSI) failure offers a significant chance of pregnancy and to identify prognostic factors for pregnancy after an AID procedure. An eleven-year retrospective multicenter study was conducted among 13 Centre d'Etude et de Conservation des Oeufs et du Sperme (CECOS) centers. A total of 319 couples having undergone an AID procedure after intra-conjugal ICSI failure were included in this study; a total of 1,159 AID and 1,011 intra conjugal ICSI cycles were performed. Among the prognostics parameters, the parity and the embryo quality could not be adequately addressed, therefore the parity was not included in the statistical analysis and the embryo quality has been presented as preliminary observations. The pregnancy rate per cycle was 12.0% (139/1,159) and the overall AID pregnancy rate per couple was 43.6% (139/319). Normal or oligoasthenoteratozoospermia (OAT) semen and women aged 34 years or above at the time of AID procedure obtained the lowest AID clinical pregnancy rate. Azoospermia or cryptozoospermia semen and women aged below 34 years obtained the highest AID clinical pregnancy rate. In conclusion, the transition to the AID procedure after intra-conjugal ICSI failure allows such couples to obtain a pregnancy, however after each ART failure AID transition should be proposed according to the woman's age and sperm characteristics. ABBREVIATIONS: AID: artificial insemination with donor sperm; ICSI: intracytoplasmic sperm injection; CECOS: Centre d'Etude et de Conservation des Oeufs et du Sperme; OAT: oligoasthenoteratozoospermia; IVF: in vitro fertilization; ART: artificial reproductive technology; beta hCG: beta human chorionic gonadotrophin; SD: standard deviation; OR: Odds ratio. PMID- 29020466 TI - Improving post-stroke cognitive and behavioral abnormalities by using virtual reality: A case report on a novel use of nirvana. AB - Cognitive impairment, as well as mood and anxiety disorders, occur frequently in patients following stroke. Aim of this study was to evaluate the effects of a combined rehabilitative treatment using conventional relaxation and respiratory techniques, in a specific rehabilitative virtual environment (by using Bts Nirvana). A 58-year-old woman, affected by hemorrhagic stroke, underwent two different rehabilitation trainings, including either standard relaxation techniques alone in a common clinical setting or the same psychological approach in a semi-immersive virtual environment with an augmented sensorial (audio-video) and motor feedback (sensory motor-interaction). We evaluated the patient's cognitive and psychological profile before and after the two different trainings, by using a specific psychometric battery, aimed to assess cognitive status, attention processes and to estimate the presence of mood alterations, anxiety and coping strategies. Only at the end of the combined approach, we observed a significant improvement in attention and memory functions, with a nearly complete relief of anxiety symptoms and an improvement in coping strategies. Relaxation and respiratory techniques in a semi-immersive virtual reality environment, using Bts-Nirvana, may be a promising tool in improving attention process, coping strategies, and anxiety in individuals with neurological disorders, including stroke. PMID- 29020467 TI - Effects of a fractional picosecond 1,064 nm laser for the treatment of dermal and mixed type melasma. AB - BACKGROUND: Picosecond laser is a novel modality for pigmented skin disorders with extremely short pulse duration. Little is known about the effects of the picosecond laser in melasma. OBJECTIVE: This study aimed to investigate the efficacy of fractional picosecond 1,064 nm laser in melasma treatment. STUDY DESIGN: A prospective, randomized, assessor-blinded, intra-individual split face comparative study. METHODS: Female subjects with melasma were enrolled and received fractional picosecond 1,064 nm laser plus 4% hydroquinone cream on one randomly assigned side of the face; the results were compared to the use of hydroquinone cream only on the contralateral side. The modified melasma area severity index (mMASI) score, melanin index by Mexameter MX18(r), participant satisfaction score by quartile rating scale, and the quality of life by the dermatology life quality index (DLQI) were evaluated over 12 weeks. RESULTS: Thirty female subjects completed the protocol. The mean (+/- standard deviation, SD) mMASI score at the 12-week visit was significantly reduced in the picosecond laser-treated areas compared to controls (3.52 +/- 1.4 and 4.18 +/- 2.03 respectively; p = 0.035). No differences were observed in the mean Mexameter melanin index, participant satisfaction score, and DLQI score. The observed adverse effects included transient mild erythema and mild skin desquamation. CONCLUSION: The addition of fractional picosecond 1,064 nm laser to 4% hydroquinone was effective and significantly better than 4% hydroquinone alone for the treatment of melasma. PMID- 29020468 TI - Comparative features of Asthma with frequent or infrequent exacerbations: A longitudinal study of retrospective and prospective events. AB - BACKGROUND: A "frequent exacerbator phenotype" has been described, mostly in the population of patients with severe asthma. Further data are needed on such exacerbation-prone patients in milder asthma. AIM: To compare the characteristics of frequent and nonfrequent exacerbators in asthma of different severities and to assess the stability of the exacerbator status. METHODS: This was an observational study comparing baseline data from frequent (>=2 exacerbations in the past year) and nonfrequent (<2 exacerbations in the past year) exacerbators. Patients were also followed up for one year. Information regarding clinical, physiologic, and inflammatory characteristics was collected at baseline and one year follow-up. RESULTS: Forty-seven frequent and 53 nonfrequent exacerbators were recruited. No specific clinical, physiologic, or inflammatory characteristic was observed in the frequent as compared to the nonfrequent exacerbators at baseline. Fifty-eight percent of patients reporting frequent exacerbations at baseline remained in this group after one year of follow-up. Forty-two and 62% of patients with, respectively, mild-to-moderate asthma and severe asthma had frequent exacerbations. In a post hoc analysis according to asthma severity, frequent exacerbators with severe asthma had a higher body mass index and poorer asthma control, although they reported higher adherence to medication, in comparison to frequent exacerbators with mild-to-moderate asthma. No specific characteristics could discriminate between frequent and nonfrequent exacerbators of the same asthma severity. CONCLUSIONS: Frequent exacerbators with severe asthma present some specific characteristics not observed in frequent exacerbators with mild-to-moderate disease. However, the latter group should be identified to reassess treatment needs and potential contributing factors. PMID- 29020469 TI - Enabling Student Success for the NBCOT Exam: A Pilot Education Program. AB - This piloted asynchronous online course enabled students to prepare for the certification examination during the students' second level II clinical experience. Instructional strategies included creation of individualized resource materials and study plans, weekly assignments, and practice tests' data. A comparison of cohorts will be discussed, as well as lessons learned for future course development and instructional design that will enable students to learn skills required to successfully complete the certification examination. PMID- 29020470 TI - Diagnostic Value of Plasma Pentraxin-3 in Acute Appendicitis. AB - PURPOSE: To measure serum PTX3 levels in patients admitted with right lower quadrant pain to emergency department and to investigate whether this parameter will be helpful for the diagnosis of acute appendicitis. MATERIALS AND METHODS: This study was conducted with a group of 89 patients over 17 years of age who were admitted with the complaint of right lower quadrant pain to ED and had a preliminary diagnosis of acute appendicitis clinically and the control group of 31 healthy volunteers in a tertiary university hospital for 3 months. RESULTS: Median PTX3 levels were 3.28 (1.08-30.24) ng/mL in the acute appendicitis groups and 0.97 (0.34-2.62) ng/mL in the control group. A significant difference was observed between acute appendicitis groups and the control group (p < 0.05). CONCLUSION: PTX3 was found to be significantly higher in patient with acute appendicitis compared to the control group and the patients with non-specific abdominal pain. PTX3 can be used as an aid in the diagnosis of acute appendicitis. PMID- 29020471 TI - Culture-Positive Endogenous Endophthalmitis: An Eleven-Year Retrospective Study in the Central Region of Thailand. AB - PURPOSE: To report the characteristics of infection and prognostic factors of endogenous endophthalmitis (EE) over an 11-year period. METHODS: The clinical records of 41 eyes of 36 patients diagnosed with culture-proven EE at the Rajavithi Hospital were retrospectively reviewed. RESULTS: Median age at presentation was 58 years. Liver abscess (19%) and urinary tract infections (19%) were the most common sources of infection. The most common causative agents were gram-negative organisms (48%). The most commonly isolated microorganism was Klebsiella pneumoniae (26.8%). Worse initial visual acuity and severe intraocular inflammation at first presentation were equally associated with poor visual outcome in the multivariate model (adjusted odds ratio, 20.32; 95% confidence interval [1.12-357.45]; P = 0.040). CONCLUSIONS: Endogenous endophthalmitis usually has a poor visual prognosis. Liver abscess and urinary tract infections are common primary sites of infection. Poor initial visual acuity and severe intraocular inflammation at the initial presentation are predictors of poor visual outcome. PMID- 29020472 TI - Effect of transcranial direct current stimulation combined with cognitive training on cognitive functioning in older adults with HIV: A pilot study. AB - The objective of this study was to examine combination speed of processing (SOP) cognitive remediation therapy (CRT) and transcranial direct stimulation (tDCS) as neurorehabilitation in older HIV+ adults. Thirty-three HIV+ adults aged 50+ completed neurocognitive testing and were randomized to either active (n = 17) or sham (n = 16) tDCS. Both conditions received 10 1-hour sessions of SOP CRT, with either active or sham tDCS for the first 20 minutes. Participants then completed a posttest assessment. Repeated measures analysis of variance examining Time X Condition showed small-to-medium effects in the expected direction for an executive (d = 0.36), and SOP measure (d = 0.49), while medium-to-large effects were observed for an executive/attention (d = 0.60) and oral reading measure (d = 0.75). The only statistically significant interaction was the oral reading measure. Small-to-medium and medium-to-large effects (ds = 0.32, 0.58) were found for two SOP measures in the opposite direction (sham group showing greater improvements). Further trials of CRT and tDCS in this population are needed, including larger samples and a nonactive control and tDCS only condition, as is determination of which parameters of each technique (e.g., tDCS montage, timing of tDCS, domain targeted in CRT, number of sessions) are most effective in improving cognitive outcomes, durability of training gains, and translation to everyday functioning. PMID- 29020473 TI - Cutis mormorata telangiectatica congenital successfully treated with intense pulsed light therapy: A case report. AB - Cutis marmorata telangiectatica congenita is a rare disorder characterized by cutis marmorata, telangiectasia with or without recurrent ulcerations. It is a benign vascular anomaly with dilatation of capillaries and veins in the dermis. There is no satisfactory treatment for the ulcerative variety of cutis marmorata telangiectatica congenita. In this case, intense pulse light therapy was used with almost near total cure. Intense pulse light with its vascular filter of wavelength 550-1200 nm was used every fortnight till complete resolution of lesions. PMID- 29020474 TI - Laser-assisted hair removal for facial hirsutism in women: A review of evidence. AB - Poly cystic ovarian syndrome (PCOS) has been described as the common diagnosis for hirsutism in women. Facial hirsutism is by far the most distressing symptom of hyperandrogenism in women with PCOS. A statistically significant improvement in psychological well-being has been reported in patients with PCOS allocated for laser-assisted hair removal. The theory of selective photothermolysis has revolutionized laser hair removal in that it is effective and safe, when operated by sufficiently trained and experienced professionals. Long-pulsed ruby (694 nm), long-pulsed alexandrite (755 nm), diode (800-980 nm), and long-pulsed Nd:YAG (1064 nm) are commercially available laser devices for hair removal most widely studied. This article will introduce the fundamentals and mechanism of action of lasers in hair removal, in a contemporary literature review looking at medium to long term efficacy and safety profiles of various laser hair removal modalities most widely commercially available to date. PMID- 29020475 TI - Association of khellin and 308-nm excimer lamp in the treatment of severe alopecia areata in a child. AB - Alopecia areata (AA) is an autoimmune inflammatory disorder of hair, characterized by non-scarring hair loss. A 308-nm excimer lamp (EL) has been reported as one effective modality in the treatment of AA. Khellin is a furanochromone photosensitizer whose chemical structure is close to psoralens and has previously proven its efficacy in vitiligo in association with ultraviolet A. We evaluated the efficacy and safety of a combination of topical khellin and 308 nm EL in the treatment of a refractory ophiasic AA, of 1-year evolution, in a 5 year-old boy. Treatment consisted in topical application of khellin 45 mn before irradiation with EL (starting dose 50 mJ/cm2) twice a week for 3 months. The result was a complete regrowth of hair with no recurrence 1 year later. Further studies should be carried out to confirm this promising result and to propose khellin-excimer as a new alternative treatment for resistant cases of AA in children. PMID- 29020476 TI - Adulteration and Counterfeiting of Online Nutraceutical Formulations in the United States: Time for Intervention? AB - Global prevalence of nutraceuticals is noticeably high. The American market is flooded with nutraceuticals claiming to be of natural origin and sold with a therapeutic claim by major online retail stores such as Amazon and eBay. The objective of this commentary is to highlight the possible problems of online-sold nutraceuticals in the United States with respect to claim, adulterants, and safety. Furthermore, there is a lack of strict regulatory laws governing the sales, manufacturing, marketing, and label claims of nutraceutical formulations currently sold in the U.S. market. Major online retail stores and Internet pharmacies aid the widespread sale of nutraceuticals. Finally, according to the literature, many of these products were found to be either counterfeit or adulterated with active pharmaceutical ingredients (API) and mislabeled as being safe and natural. Therefore, regulatory authorities along with the research community should intervene to draw attention to these products and their possible effects. PMID- 29020477 TI - Quality of Life and Psychological Aspects in Patients with Visual Impairment Secondary to Uveitis: A Clinical Study in a Tertiary Care Hospital in Brazil. AB - PURPOSE: To evaluate the quality of life in individuals with bilateral visual impairment secondary to uveitis and its association with sociodemographic, clinical and psychosocial aspects. METHODS: Data were collected through a structured interviews, using four forms; the SF-12v2, HADS, NEI-VFQ-25 and a specific form developed to collect clinical and sociodemographic data. RESULTS: 80 patients were included with a mean age of 42.8 years; 63.8% female; 57.5% with permanent reduction of familiar income. The average number of medical visits was 15.2 +/-10.7/year. In terms of health-related quality of life (HRQol), the mean of VFQ-25 score was 36.6 +/- 15.1 and the mean of SF-12 physical and mental components scores were 43.3 +/- 9.9 and 44.9 +/- 12.2. Anxiety and depression symptoms were found in 65.1% and 32.5% of patients, respectively. CONCLUSIONS: Visual impairment has impact on several scales of HRQoL leading to productivity loss and consumption of health resources. PMID- 29020478 TI - Photobiomodulation therapy for androgenetic alopecia: A clinician's guide to home use devices cleared by the Federal Drug Administration. AB - : The market for home-use photobiomodulation devices to treat androgenetic alopecia has rapidly expanded, and the Food and Drug Administration (FDA) has recently cleared many devices for this purpose. Patients increasingly seek the advice of dermatologists regarding the safety and efficacy of these hair loss treatments. The purpose of this guide was threefold: (1) to identify all home-use photobiomodulation therapy devices with FDA-clearance for treatment of androgenetic alopecia; (2) to review device design, features and existing clinical evidence; and (3) to discuss practical considerations of photobiomodulation therapy, including patient suitability, treatment goals, safety, and device selection. A search of the FDA 510(k) Premarket Notification database was conducted using product code "OAP" to identify all home-use devices that are FDA-cleared to treat androgenetic alopecia. Thirteen commercially available devices were identified and compared. Devices varied in shape, wavelength, light sources, technical features, price, and level of clinical evidence. To date, there are no head-to-head studies comparing the efficacy of these devices. Photobiomodulation therapy devices have an excellent safety profile and mounting evidence supporting their efficacy. However, long-term, high quality studies comparing these devices in diverse populations are lacking. As these devices become increasingly popular, dermatologists should be familiar with this treatment modality to add to their therapeutic armamentarium. ABBREVIATIONS: AGA, androgenetic alopecia; FDA, Food and Drug Administration; IEC, International Electrotechnical Commission; LED, light-emitting diode; PBMT, photobiomodulation therapy. PMID- 29020480 TI - Bilateral Hemorrhagic Retinopathy with Roth Spots in Pediatric-Onset Systemic Lupus Erythematosus and Associated Thrombocytopenia: A Case Report and Review of Literature. PMID- 29020479 TI - Silicone gel enhances the efficacy of Er:YAG laser treatment for atrophic acne scars: A randomized, split-face, evaluator-blinded, placebo-controlled, comparative trial. AB - BACKGROUND: The effect of topical silicone gel has been studied to prevent scars from burn, postoperative wound and to treat hypertrophic scars. No previous studies have been done to evaluate the efficacy of topical silicone gel on atrophic acne scars. MATERIAL AND METHODS: Nineteen patients were treated with three sessions of ablative Er:YAG laser with 1-month intervals. Following each laser treatment, the randomlyassigned silicone gel or placebo was applied in split-face manner. Objective assessments, which included roughness, smoothness, hydration, transepidermal water loss were measured at baseline and prior to each treatment. Subjective assessments by dermatologists and subjects were done at baseline and 1 month after last laser treatment. RESULTS: The laser treatments were well tolerated and resulted in clinical improvements. Topical silicone gel treatment resulted in significantly less roughness at weeks 4 and 12 compared with placebo (p < 0.05). CONCLUSION: Adding topical silicone gel to ablative Er:YAG laser treatment may provide additional benefits in improving acne scars. PMID- 29020481 TI - Ocular Toxoplasmosis in Tropical Areas: Analysis and Outcome of 190 Patients from a Multicenter Collaborative Study. AB - PURPOSE: To describe clinical findings and outcomes for ocular toxoplasmosis in an international multicenter collaborative study. METHODS: Retrospective analysis of 190 patients diagnosed with ocular toxoplasmosis from three study sites (Brazil, India, and Singapore). RESULTS: There were 93 (48.9%) females with a mean age of 32.8 years. The most common symptoms were isolated blurring of vision (36.8%), followed by blurring of vision with floaters (21.1%). Treatment regimens varied largely from monotherapy to multiple combination therapies. Final visual acuity of >=20/40 was achieved in 106 (74.2%) patients. In a median follow-up period of 31 weeks (range 12-749 weeks), 83/190 (43.7%) patients suffered a relapse. CONCLUSIONS: There appears to be geographical variation in the presentation of ocular toxoplasmosis. Compared to previous studies, we did not observe the '"dual peak" phenomenon of chronic and active disease based on age at presentation, and there was less bilateral and macular involvement (but more peripheral involvement). PMID- 29020482 TI - A retrospective analysis of the influencing factors and complications of Q switched lasers in tattoo removal in China. AB - BACKGROUND AND OBJECTIVE: Q-switched (QS) lasers are the gold standard for tattoo removal. The purpose of the present study was to gain a more comprehensive understanding of the factors that influence the efficacy of QS lasers and their associated complications in the removal of tattoos in China. PATIENTS AND METHODS: Clinical data of 266 patients were analyzed retrospectively. The tattoo clearance rate was evaluated using the 4-point scale. The Cox regression model was applied to analyze the factors that affected the efficacy of QS lasers in tattoo removal. In addition, treatment-related adverse reactions were analyzed. RESULTS: The results showed that several variables had a statistically significant effect (p < 0.05) on the efficacy of QS laser-mediated tattoo removal treatment, including the patients' age, the tattoo's age, type, color, or ink density and the number of treatments. A variety of adverse responses occurred during the laser treatment. The overall incidence of adverse responses was approximately 24.06%, including pigmentation, hypopigmentation, bulla formation, allergic reactions, and skin texture changes or hypertrophic scarring. CONCLUSION: Some factors may influence the efficacy of QS lasers in the treatment of tattoos and certain adverse reactions may occur during this process. PMID- 29020483 TI - Efficacy of low-level laser therapy as an auxiliary tool for management of acute side effects of head and neck radiotherapy. AB - INTRODUCTION: Head and neck radiotherapy (HNRT) is associated with acute and chronic side effects, some of which result in great morbidity. The aim of this study was to determine the efficacy of low-level laser therapy (LLLT) as an oral care tool for the management of these effects. MATERIALS AND METHODS: Clinical information was collected from 216 patients undergoing HNRT; these individuals were divided into a control group without laser therapy (n = 108) and a laser group (n = 108). The intervention of the laser group was performed in a different period to the control group and was applied three times weekly. All data were analyzed by a descriptive statistical analysis. RESULTS: The presence and severity of mucositis were similar between the groups. However, the laser group showed a lower frequency of interruption of oncologic therapy related to mucositis (p = 0.030) and the need of nasogastric tube nutrition during the HNRT (p = 0.027). In addition, trismus was less intense in the laser group (p = 0.023). CONCLUSIONS: The introduction of laser therapy in the supportive care for patients undergoing HNRT showed benefits for the patient and the medical system, reducing morbidity and costs associated with side-effects. PMID- 29020484 TI - Long-term outcome of a patient with paradoxical hypertrichosis after laser epilation. AB - One underreported, rare side effect of laser hair removal is paradoxical hypertrichosis. It is largely unknown what the long-term outcomes are of patients who develop this complication. We report a 21-year-old, Fitzpatrick II, male patient, who had patchy areas of dark hair affecting various body areas. An Alexandrite 755 nm laser was used to address the desired areas at energies between 20 and 22 J/cm2 at 10-12-week intervals over a course of seven treatments. After three treatments, the patient noted a significant increase in the density and length of hairs involving the back, shoulders, neck, and upper arms. The patient was followed on a biannual basis, without further epilatory intervention. After 10 years, the areas of paradoxical hair growth were sparser compared to immediate post-treatment but remained denser compared to pre treatment. This case illustrates improvement in the condition over time without intervention. Further studies are needed to determine the etiopathogenesis of this phenomenon. PMID- 29020485 TI - Comment on: "Intravitreal Injection of Sulfamethoxazole and Trimethoprim Associated with Dexamethasone as an Alternative Therapy for Ocular Toxoplasmosis". PMID- 29020486 TI - Ocular Manifestations and Visual Outcomes of Behcet's Uveitis in a Thai population. AB - PURPOSE: To report on ocular manifestations and visual outcomes of Thai patients with Behcet's Uveitis (BU). METHODS: We reviewed medical records of 50 BU patients (31 males and 19 females). Ocular manifestations, treatment modalities, complications, and visual outcomes were registered. RESULTS: Ocular involvement was bilateral in 76% of patients, resulting in 89 affected eyes. Panuveitis and posterior uveitis were the most common types. Retinal vasculitis was noted in majority of affected eyes and specifically arteritis was noticed in 32/57(56%). Most patients received combination therapy of systemic corticosteroids and immunosuppressive agents (azathioprine 72%). At final visit, VA <=20/200 was observed in 25 affected eyes (28%). Risk factors for poor visual outcome were poor visual acuity at presentation (p < 0.001) and development of optic atrophy (p = 0.01). CONCLUSIONS: Typical ocular manifestations of Thai patients with BU consisted of bilateral uveitis affecting posterior eye segment with high rate of complications and frequent visual loss. PMID- 29020487 TI - Clinical Characteristics and Prognostic Factors in Ankylosing Spondylitis Associated Uveitis. AB - PURPOSE: To identify the clinical features and prognostic factors of uveitis associated with ankylosing spondylitis (AS). METHODS: This retrospective, interventional case series study reviewed the medical records of 91 AS patients with uveitis. RESULTS: The characteristics of AS-associated uveitis included male preponderance (70%), average onset in the fourth decade, unilateral manifestation (87.9%), and vitreous involvement or retinal vascular leakage (36.3%). All patients had acute anterior uveitis. The best corrected visual acuity in logMAR improved from 0.8 +/- 0.3 to 0.1 +/- 0.2. The use of biologic agents was the only significant factor in the multivariate analysis. Patients with vitreous involvement/retinal vascular leakage were more likely to use systemic/peribulbar steroids for inflammation control, and achieved equally favorable visual outcome as in those without vitreous involvement/retinal vascular leakage. CONCLUSION: The clinical characteristics and profile of visual prognostic factors suggest an association between the severity of ocular inflammation and systemic disease. PMID- 29020488 TI - Unilateral Ocular Manifestations of Vogt-Koyanagi-Harada Disease. AB - PURPOSE: To describe a case of unilateral Vogt-Koyanagi-Harada (VKH) disease and associated multimodal imaging. METHODS: Retrospective case report. RESULTS: A 50 year-old Hispanic male presented with three days of painless decreased vision in his left eye, headache, and decreased hearing. His visual acuity was 20/20 in the right eye and counting fingers in the left eye. Examination of his right eye was unremarkable. Funduscopic examination of his left eye revealed multiple serous retinal detachments. Fluorescein angiography demonstrated late multifocal pinpoint hyperfluorescence in his left eye and a diagnosis of VKH disease was made. He was treated with oral prednisone. Serial re-examination demonstrated resolution of the serous retinal detachments and a taper of his oral prednisone was initiated with improvement of his visual acuity to 20/25. CONCLUSIONS: Our patient had imaging and a clinical course that was consistent with VKH disease. This unilateral presentation may represent a clinical variant of VKH disease. PMID- 29020489 TI - Multiple Evanescent White Dot Syndrome following Acute Epstein-Barr Virus Infection. AB - PURPOSE: To investigate the association between multiple evanescent white dot syndrome (MEWDS) and Epstein-Barr (EB) virus infection. METHODS: A prospective, consecutive case series study was performed in patients with the characteristic findings of MEWDS. Patients received EB viral-specific antibody serologic tests. RESULTS: Five cases of MEWDS who had prodromal flu-like symptoms were enrolled, comprising 2 women and 3 men with a mean age of 34. Mean diopter of myopia was 7.5. During acute onset of MEWDS, EB virus infection was confirmed by positive EB virus serology test. One showed positive EB viral capsid antigen (EB-VCA) IgM, and the other four showed highly elevated titer of EB-VCA IgG more than 1:160. Two months later, paired serum virus serology data showed negative EB-VCA IgM, or prior EB-VCA IgG titer decreased four-fold in the recovery stage. CONCLUSION: MEWDS may be associated with acute systemic EB virus infection. Ocular symptoms might develop due to this infection or represent virus-induced autoimmune inflammatory retinitis. PMID- 29020490 TI - Impact of ticagrelor on P2Y1 and P2Y12 localization and on cholesterol levels in platelet plasma membrane. AB - Ticagrelor is an antiplatelet agent that inhibits platelet activation via P2Y12 antagonism. There are several studies showing that P2Y12 needs lipid rafts to be activated, but there are few data about how ticagrelor impacts lipid raft organization. Therefore, we aimed to investigate how ticagrelor could impact the distribution of cholesterol and consequently alter the organization of lipid rafts on platelet plasma membranes. We identified cholesterol-enriched raft fractions in platelet membranes by quantification of their cholesterol levels. Modifications in cholesterol and protein profiles (Flotillin 1, Flotillin 2, CD36, P2Y1, and P2Y12) were studied in platelets stimulated by ADP, treated by ticagrelor, or both. In ADP-stimulated and ticagrelor-treated groups, we found a decreased level of cholesterol in raft fractions of platelet plasma membrane compared to the control group. In addition, the peak of cholesterol in different experimental groups changed its localization on membrane fractions. In the control group, it was situated on fraction 2, while in ADP-stimulated platelets, it was located in fractions 3 to 5, and in fraction 4 in ticagrelor-treated group. The proteins studied also showed changes in their level of expression and localization in fractions of plasma membrane. Cholesterol levels of plasma membranes have a direct role in the organization of platelet membranes and could be modified by stimulation or drug treatment. Since ticagrelor and ADP both changed lipid composition and protein profile, investigating the lipid and protein composition of platelet membranes is of considerable importance as a focus for further research in anti-platelet management. PMID- 29020492 TI - Comment on Trad et al.'s "Update on Immunological Test (Quantiferon-TB Gold) Contribution in the Management of Tuberculosis-Related Ocular Inflammation". PMID- 29020491 TI - Ocular Syphilis: An Update. AB - This review aims to provide an update on the clinical presentation, diagnosis, and treatment of ocular syphilis. While ocular syphilis is not a new phenomenon, recent resurgence in the incidence of overall syphilis, particularly among HIV positive individuals, has sparked a new interest in an old disease. The challenge of ocular syphilis is manifold: firstly, it manifests in a spectrum of ways that can occur at any stage of the disease, with the most common finding being panuveitis. It may occur as early as 6 weeks after transmission and may be the only presenting feature of systemic syphilis; secondly, the relationship between HIV and syphilis has been established, as primary syphilis facilitates HIV transmission and HIV may modify the natural course of syphilis, increasing the propensity of the disease to progress to neurosyphilis. The authors present the latest updates to the changing landscape of ocular syphilis. PMID- 29020493 TI - Authors reply to Letter to the Editor-In response to: "Tripathy, K. Update on Immunological Test (Quantiferon-TB Gold) Contribution in the Management of Tuberculosis-Related Ocular Inflammation". PMID- 29020494 TI - Comment on Durrani et al.'s "Adalimumab for Ocular Inflammation". PMID- 29020495 TI - Effect of Adalimumab on Peripheral Blood Mononuclear Cells in Non-Infectious Uveitis. AB - PURPOSE: This study analyzed the effect of adalimumab on peripheral blood mononuclear cells (PBMCs) in uveitis. METHODS: PBMCs and serum S100A12 levels from 14 uveitis patients and 28 healthy controls were analyzed. Patient samples were taken before (w0), and 6 (w6) and 12 (w12) weeks after initiation of adalimumab therapy. RESULTS: Monocytes expressing CD124, CD86, CD39, CD115, and MHCII were decreased in patients. Adalimumab induced CD86+ and CD39+ monocytes, and further decreased the frequency of MHCII- and CD124-positive cells. Patients (w0) had increased percentages of Th1-, Th17-, and Th2 cells and T cell subsets showed a pro-inflammatory polarization (p = 0.02 ratio Th17/Treg patients w0 vs controls), which was reduced upon adalimumab treatment (p = 0.05 w0 vs w6). S100A12 levels were increased in patients (p = 0.02) and reduced under treatment (p = 0.02 for w6/w12). CONCLUSIONS: The phenotype of PBMCs from uveitis patients is modified upon adalimumab treatment. Serum S100A12 levels reflect the systemic immune response. PMID- 29020496 TI - Clinical Outcomes of Adjunctive Sustained-Release Intravitreal Dexamethasone Implants in Tuberculosis-Associated Multifocal Serpigenoid Choroiditis. AB - PURPOSE: To analyze the safety and efficacy of sustained-release intravitreal dexamethasone implant (Ozurdex) in management of TB-associated multifocal serpiginoid choroiditis (MSC). METHODS: Retrospective review of TB-associated MSC patients, treated with anti-TB therapy (ATT) and adjunctive intravitreal Ozurdex. RESULTS: Nine eyes of six patients were included. Four patients required Ozurdex implant for progressive or new lesions following ATT and two for additional systemic contraindications to corticosteroids - hyperglycemia and uncontrolled hypertension, respectively. The mean time to resolution was 9.17 +/- 7.71 weeks. The mean follow-up post-injection was 13.11 +/- 6.05 months (median 12 months [range 6-24.5 months]). Only one of nine eyes developed recurrent MSC lesions and this was attributed to possible autoimmune etiology. Two eyes (22.2%) developed steroid-induced glaucoma - one required implant removal. CONCLUSIONS: Sustained release intravitreal dexamethasone is a safe and efficacious adjunctive anti inflammatory therapy for TB-associated MSC patients with contraindication for systemic corticosteroids or requiring supplemental anti-inflammatory therapy. PMID- 29020497 TI - Stimuli-Responsive Nanodiamond-Based Biosensor for Enhanced Metastatic Tumor Site Detection. AB - Metastasis is often critical to cancer progression and linked to poor survival and drug resistance. Early detection of metastasis, as well as identification of metastatic tumor sites, can improve cancer patient survival. Thus, developing technology to improve the detection of cancer metastasis biomarkers can improve both diagnosis and treatment. In this study, we investigated the use of nanodiamonds to develop a stimuli-responsive metastasis detection complex that utilizes matrix metalloproteinase 9 (MMP9) as a metastasis biomarker, as MMP9 increased expression has been shown to be indicative of metastasis. The nanodiamond-MMP9 biosensor complex consists of nanodiamonds functionalized with MMP9-specific fluorescent-labeled substrate peptides. Using this design, protease activity of MMP9 can be accurately measured and correlated to MMP9 expression. The nanodiamond-MMP9 biosensor also demonstrated an enhanced ability to protect the base sensor peptide from nonspecific serum protease cleavage. This enhanced peptide stability, combined with a quantitative stimuli-responsive output function, provides strong evidence for the further development of a nanodiamond MMP9 biosensor for metastasis site detection. More importantly, this work provides the foundation for use of nanodiamonds as a platform for stimuli responsive biosensors and theranostic complexes that can be implemented across a wide range of biomedical applications. PMID- 29020500 TI - Tocilizumab for the Treatment of Behcet Uveitis that Failed Interferon Alpha and Anti-Tumor Necrosis Factor-Alpha Therapy. AB - PURPOSE: To report the results of tocilizumab (TCZ) treatment in patients with Behcet uveitis (BU) who had failed conventional, interferon alpha, and anti-Tumor necrosis factor-alpha therapy. METHODS: We reviewed the records of five patients with BU treated with monthly infusions of TCZ 8 mg/kg. Outcome measures were visual acuity, anterior chamber cells, laser flare meter (LFM) readings, vitreous haze, central macular thickness (CMT), and fluorescein angiography (FA) score. RESULTS: The clinical inactivity of BU and 20/50 or better vision were achieved in three female and two male patients treated with TCZ for 5-19 months. The mean LFM reading was reduced from 15.4 +/- 2.7 to 5.0 +/- 0.9 ph/ms; the mean CMT from 324.7 +/- 36.6 um to 280.2 +/- 34.1 um; and the mean FA score from 20.6 +/- 5.4 to 9.3 +/- 4.5 um at the last visit. The only side effect was a slight elevation of the total cholesterol level in one patient. CONCLUSIONS: Tocilizumab may be a safe and effective therapeutic option for refractory BU. PMID- 29020499 TI - Chikungunya Virus Infection Associated with Encephalitis and Anterior Uveitis. AB - Chikungunya virus (CHIKV) is an RNA virus transmitted by Aedes mosquitoes. The clinical manifestations include fever, arthralgia, rash, and other atypical clinical findings including ocular lesions. We report the case of a 57-year-old man with meningoencephalitis and anterior uveitis due to CHIKV. The patient had developed bilateral anterior uveitis with iris atrophy and a cotton wool spot on the left eye, and his serum, urine, saliva, and cerebrospinal fluid were positive for CHIKV by RT-PCR. The spectrum of the ophthalmologic manifestations and its pathophysiology in cases of CHIKV infections needs to be better understood. Additional studies examining the ocular lesions caused by CHIKV could improve the therapeutic goals of reducing the morbidity and sequels. PMID- 29020498 TI - LncRNA CCAT1/miR-130a-3p axis increases cisplatin resistance in non-small-cell lung cancer cell line by targeting SOX4. AB - BACKGROUND: Colon cancer-associated transcript-1 (CCAT1) has been demonstrated to act as an oncogene and promote chemoresistance in several cancers. However, little is known about the underlying mechanism of CCAT1 in cisplatin (DDP) resistance of non-small-cell lung cancer (NSCLC) cells. METHODS: qRT-PCR was performed to detect the expression levels of CCAT, miR-130a-3p, or sex determining region Y-box 4 (SOX4) mRNA. Luciferase reporter assay, RNA immunoprecipitation (RIP), and qRT-PCR analysis were carried out to explore the potential targets of CCAT1 or miR-130a-3p. Effect of CCAT1, miR-130a-3p, or SOX4 on IC50 value of DDP and ATP binding cassette subfamily G member 2 (ABCG2) level in NSCLC cells were determined by cell counting kits-8 (CCK-8) assay and western blot, respectively. RESULTS: CCAT1 and SOX4 were up-regulated, and miR-130a-3p was down-regulated in DDP-resistant NSCLC cells compared with their parental NSCLC cells. CCAT1 directly interacted with miR-130a-3p and negatively regulated miR-130a-3p expression. CCAT1 contributed to DDP resistance of A549/DDP cells by down-regulating miR-130a-3p. miR-130a-3p was found to directly target SOX4 to suppress its expression. SOX4 knockdown reversed miR-130a-3p-inhibition-induced increase of DDP resistance and ABCG2 expression in NSCLC cells. Exogenous expression of SOX4 abrogated CCAT1-knockdown-mediated decrease of DDP resistance and ABCG2 expression in DDP-resistant NSCLC cells. CONCLUSION: CCAT1/miR-130a-3p axis enhanced DDP resistance of NSCLC cells by targeting SOX4, providing potential targets to overcome DDP resistance and improve efficacy of chemotherapy for patients with NSCLC. PMID- 29020501 TI - Ultra-Wide Field Imaging in Paradoxical Worsening of Tubercular Multifocal Serpiginoid Choroiditis after the Initiation of Anti-Tubercular Therapy. AB - PURPOSE: To evaluate role of ultra-wide field (UWF) versus conventional imaging in the follow-up and paradoxical worsening (PW) of tubercular (TB) multifocal serpiginoid choroiditis (MSC). METHODS: Prospective observational study of patients with TB MSC undergoing UWF imaging, autofluorescence and fluorescein angiography was performed. A circle simulating central 75 degrees field representing conventional imaging was drawn on UWF images. The information yielded by the two modalities, progression of choroiditis lesions and PW was compared. RESULTS: 44 eyes (29 patients, mean age: 30.7 +/- 9 years; 23 males) were included. UWF imaging showed additional lesions in 39/44 eyes (88.6%). Overall, 16/44 eyes (36.4%) showed PW; 3/16 eyes (18.7%) showed only peripheral PW, while 10/16 eyes showed both central and peripheral PW. Management was altered in 11 patients (37.93%) based on UWF imaging. CONCLUSIONS: UWF is more useful than conventional imaging in identifying additional choroiditis lesions, PW and altering the course of therapy in TB MSC. PMID- 29020503 TI - High-Throughput Screening for Protein Synthesis Inhibitors Targeting Aminoacyl tRNA Synthetases. AB - Aminoacylation has been implicated in a wide variety of cancers. Aminoacyl-tRNA synthetases (ARSs) exist in large excess in tumor cells due to their increased demand for translation, whereas most other protein-synthesis apparatuses are quantitatively limited. Among other components that constitute the translation machinery-namely, tRNA, amino acid, ATP, and ARS-ARS is the only target that can be blocked by small molecules. No constitutively active ARSs have been reported, and mutations of ARS can cause inaccurate substrate recognition and malformation of the multi-ARS complex (MSC). Hence, interference of the activity is expected to be independent of genotype without developing resistance. Here, we report a high-throughput screening (HTS) system to find mammalian ARS inhibitors. The rabbit-reticulocyte lysate we used closely resembles both the individual and complexed structures of human ARSs, and it may predispose active compounds that are readily applicable for humankind. This assay was further validated because it identified familiar translational inhibitors from a pilot screen, such as emetine, proving its suitability for our purpose. The assay demonstrated excellent quality control (QC) parameters and reproducibility, and is proven ready for further HTS campaigns with large chemical libraries. PMID- 29020502 TI - Persistence of DNA adducts, hypermutation and acquisition of cellular resistance to alkylating agents in glioblastoma. AB - Glioblastoma is a lethal form of brain tumour usually treated by surgical resection followed by radiotherapy and an alkylating chemotherapeutic agent. Key to the success of this multimodal approach is maintaining apoptotic sensitivity of tumour cells to the alkylating agent. This initial treatment likely establishes conditions contributing to development of drug resistance as alkylating agents form the O6-methylguanine adduct. This activates the mismatch repair (MMR) process inducing apoptosis and mutagenesis. This review describes key juxtaposed drivers in the balance between alkylation induced mutagenesis and apoptosis. Mutations in MMR genes are the probable drivers for alkylation based drug resistance. Critical to this interaction are the dose-response and temporal interactions between adduct formation and MMR mutations. The precision in dose interval, dose-responses and temporal relationships dictate a role for alkylating agents in either promoting experimental tumour formation or inducing tumour cell death with chemotherapy. Importantly, this resultant loss of chemotherapeutic selective pressure provides opportunity to explore novel therapeutics and appropriate combinations to minimise alkylation based drug resistance and tumour relapse. PMID- 29020504 TI - Fibrocartilage Stem Cells Engraft and Self-Organize into Vascularized Bone. AB - Angiogenesis is a complex, multicellular process that is critical for bone development and generation. Endochondral ossification depends on an avascular cartilage template that completely remodels into vascularized bone and involves a dynamic interplay among chondrocytes, osteoblasts, and endothelial cells. We have discovered fibrocartilage stem cells (FCSCs) derived from the temporomandibular joint (TMJ) mandibular condyle that generates cartilage anlagen, which is subsequently remodeled into vascularized bone using an ectopic transplantation model. Here we explore FCSC and endothelial cell interactions during vascularized bone formation. We found that a single FCSC colony formed transient cartilage and host endothelial cells may participate in bone angiogenesis upon subcutaneous transplantation in a nude mouse. FCSCs produced an abundance of the proangiogenic growth factor vascular endothelial growth factor A and promoted the proliferation of human umbilical vein endothelial cells (HUVECs). Using a fibrinogen gel bead angiogenesis assay experiment, FCSC cell feeder layer induced HUVECs to form significantly shorter and less sprouts than D551 fibroblast controls, suggesting that FCSCs may initially inhibit angiogenesis to allow for avascular cartilage formation. Conversely, direct FCSC-HUVEC contact significantly enhanced the osteogenic differentiation of FCSCs. To corroborate this idea, upon transplantation of FCSCs into a bone defect microenvironment, FCSCs engrafted and regenerated intramembranous bone. Taken together, we demonstrate that the interactions between FCSCs and endothelial cells are essential for FCSC-derived vascularized bone formation. A comprehensive understanding of the environmental cues that regulate FCSC fate decisions may contribute to deciphering the mechanisms underlying the role of FCSCs in regulating bone formation. PMID- 29020506 TI - Potential application of immobilized streptokinase extracted from Streptococcus equinus VIT_VB2. AB - Streptokinase purified from Streptococcus equinus VIT_VB2 isolated from bovine milk sample was immobilized in various solid supports namely entrapment in agarose gel, calcium alginate beads and gelatin gel by cross-linking with formaldehyde. Immobilization of streptokinase in calcium alginate beads showed maximum efficiency (81.8 +/- 1.06%) when compared with entrapment with agarose gel (55.6 +/- 2.17%) and cross-linked gelatin formaldehyde gel (71.0 +/- 1.54%). The purified SK activity was expressed maximum in calcium alginate (1%) and gelatin gel (0.25%) with 1292.68 +/- 1.33 and 1121.9 +/- 1.2 U mL-1, respectively. Similarly, SK entrapped in gelatin gel and calcium alginate showed maximum in vitro blood clot lysis activity with 77.67 +/- 2.64% and 76.16 +/- 2.72%, respectively. The immobilized SK in gelatin gel showed complete clot lysis within 15 min; hence, this application of the study could be used in the treatment of superficial thrombophlebitis, phlebitis, and venous thrombosis. These beads were used for three repeated cycles to check the conversion of substrates into their products, and we concluded that SK can be immobilized in the suitable matrices. Therefore, this helps in the drug-delivery strategies in highly efficient way, moreover, economically competent process in the pharmaceutics. PMID- 29020505 TI - Socioecological Factors Related to Hazardous Alcohol use among Female Sex Workers in Lilongwe, Malawi: A Mixed Methods Study. AB - BACKGROUND: Alcohol use is pervasive among female sex workers (FSW) placing them at increased risk of violence and sexual risk behaviors. FSW often live and work where alcohol is highly normative. OBJECTIVE: To understand the socioecological influences on hazardous alcohol use among FSW in Malawi. METHODS: In 2014, 200 FSW identified through venue-based sampling in Lilongwe, Malawi, completed a quantitative behavioral survey, with a sub-sample participating in qualitative interviews. Multivariable log-binomial regression was used to identify associations between hazardous alcohol use (AUDIT score >= 7) and time in sex work, clients per week, unprotected sex, alcohol use with clients, and living environment. Qualitative interviews enhanced findings from quantitative data and identify emergent themes around socioecological influences on alcohol use. RESULTS: Over 50% reported hazardous alcohol use and lived in an alcohol-serving venue. Hazardous alcohol use was associated with sex work duration of >=2 years (aPR: 1.30; 95%CI: 1.02,1.65) and alcohol use at last sex with a client (aPR: 1.29; 95%CI: 1.06,1.57). FSW perceived alcohol as a facilitator for sex work by reducing inhibitions and attracting clients, but acknowledged alcohol leads to violence and/or unprotected sex. Despite these risks and a motivation to reduce use, FSW feared that refusing to drink would be tantamount to turning away clients. CONCLUSIONS: Although FSW recognized alcohol-related risks, the norms and power dynamics of sex work perpetuated hazardous alcohol use. Multilevel interventions are needed to collectively change norms around drinking and sex work that will enable FSW to reduce alcohol consumption when engaging in their work. PMID- 29020507 TI - Custom Repair of Mandibular Bone Defects with 3D Printed Bioceramic Scaffolds. AB - Implanting artificial biomaterial implants into alveolar bone defects with individual shape and appropriate mechanical strength is still a challenge. In this study, bioceramic scaffolds, which can precisely match the mandibular defects in macro and micro, were manufactured by the 3-dimensional (3D) printing technique according to the computed tomography (CT) image. To evaluate the stimulatory effect of the material substrate on bone tissue regeneration in situ in a rabbit mandibular alveolar bone defect model, implants made with the newly developed, mechanically strong ~10% Mg-substituted wollastonite (Ca90%Mg10%SiO3; CSi-Mg10) were fabricated, implanted into the bone defects, and compared with implants made with the typical Ca-phosphate and Ca-silicate porous bioceramics, such as beta-tricalcium phosphate (TCP), wollastonite (CaSiO3; CSi), and bredigite (Bred). The initial physicochemical tests indicated that although the CSi-Mg10 scaffolds had the largest pore dimension, they had the lowest porosity mainly due to the significant linear shrinkage of the scaffolds during sintering. Compared with the sparingly dissolvable TCP scaffolds (~2% weight loss) and superfast dissolvable (in Tris buffer within 6 wk) pure CSi and Bred scaffolds (~12% and ~14% weight loss, respectively), the CSi-Mg10 exhibited a mild in vitro biodissolution and moderate weight loss of ~7%. In addition, the CSi-Mg10 scaffolds showed a considerable initial flexural strength (31 MPa) and maintained very high flexural resistance during soaking in Tris buffer. The in vivo results revealed that the CSi-Mg10 scaffolds have markedly higher osteogenic capability than those on the TCP, CSi, and Bred scaffolds after 16 wk. These results suggest a promising potential application of customized CSi-Mg10 3D robocast scaffolds in the clinic, especially for repair of alveolar bone defects. PMID- 29020508 TI - Variability of intended copies for etanercept (Enbrel(r)): Data on multiple batches of seven products. AB - Fusion protein and monoclonal antibody-based tumor necrosis factor (TNF) inhibitors represent established treatment options for a range of inflammatory diseases. Regulatory authorities have outlined the structural characterization and clinical assessments necessary to establish biosimilarity of a new biotherapeutic product with the innovator biologic drug. Biologic products that would not meet the minimum World Health Organization's standard for evaluation of similar biotherapeutic products are available in some countries; in some cases relevant data to assess biosimilarity and appropriate regulatory approval pathways are lacking. Batches of seven intended copy (IC) products for etanercept (Enbrel(r)) were subjected to a subset of test methods used in the routine release and heightened characterization of Enbrel(r), to determine key attributes of identity, quality, purity, strength, and activity. While a number of quality attributes of the IC lots tested met the release specifications for Enbrel(r), none fell within these limits across all methods performed, and there were no IC lots that satisfied the criteria typically applied by the innovator to support comparability with Enbrel(r). Although the consequences of these differences are largely unknown, the potential for unanticipated clinical outcomes should not be overlooked. PMID- 29020509 TI - Phylogeny and taxonomy of Echinodontium and related genera. AB - The phylogenetic relationship of eight species of Echinodontium, Laurilia, and Perplexostereum of Russulales were analyzed based on sequences of the nuc rDNA ITS1-5.8S-ITS2 (ITS [internal transcribed spacer]) and D1-D2 domains of nuc 28S rDNA (28S). Our results show that Echinodontium tinctorium, E. ryvardenii, and E. tsugicola represent Echinodontium sensu stricto. Based on morphological and phylogenetic evidence, the new genus Echinodontiellum is established to accommodate Echinodontium japonicum. Amylostereum, Echinodontium, Echinodontiellum, and Larssoniporia form the Echinodontiaceae clade. The Bondarzewiaceae clade includes Bondarzewia, Heterobasidion, Laurilia, and Lauriliella. The new genus Lauriliella is established for the species initially described as Stereum taxodii and Lauriliella taiwanensis new to science. The monotypic genus Perplexostereum forms a distinct clade. A key to the genera in the Echinodontiaceae and Bondarzewiaceae as well to Perplexostereum is provided. PMID- 29020510 TI - Secretory expression and enzymatic characterization of recombinant Agarivorans albus beta-agarase in Escherichia coli. AB - Agarase catalyzes the hydrolysis of agar, which is primarily used as a medium for microbiology, various food additives, and new biomass materials. In this study, we described the expression of the synthetic gene encoding beta-agarase from Agarivorans albus (Aabeta-agarase) in Escherichia coli. The synthetic beta agarase gene was designed based on the biased codons of E. coli to optimize its expression and extracellular secretion in an active, soluble form. The synthesized agarase gene, including its signal sequence, was cloned into the pET 26 expression vector, and the pET-Aabeta-agarase plasmid was introduced into E. coli BL21-Star (DE3) cells. The E. coli transformants were cultured for high yield secretion of recombinant Aabeta-agarase in Luria-Bertani broth containing 0.6 mM isopropyl beta-D-1-thiogalactopyranoside for 9 h at 37 degrees C. The expressed recombinant Aabeta-agarase was purified by ammonium sulfate precipitation and diethylaminoethyl-sepharose column chromatography, yielding ~10 mg/L Aabeta-agarase. The purified recombinant Aabeta-agarase exhibited optimal activity at pH 7 and 40 degrees C, and its activity was strongly inhibited by Cu2+, Mn2+, Zn2+, and Al3+ ions. Furthermore, the KM and kcat values for purified Aabeta-agarase were ~0.02 mM and ~45/s, respectively. These kinetic values were up to approximately 15-100-fold lower than the KM values reported for other agarases and approximately 7-30-fold higher than the kcat/KM values reported for other agarases, indicating that recombinant Aabeta-agarase exhibited good substrate-binding ability and high catalytic efficiency. These results demonstrated that the E. coli expression system was capable of producing recombinant Aabeta-agarase in an active form, at a high yield, and with attributes useful in the relevant industries. PMID- 29020511 TI - Bayesian additive decision trees of biomarker by treatment interactions for predictive biomarker detection and subgroup identification. AB - Personalized medicine, or tailored therapy, has been an active and important topic in recent medical research. Many methods have been proposed in the literature for predictive biomarker detection and subgroup identification. In this article, we propose a novel decision tree-based approach applicable in randomized clinical trials. We model the prognostic effects of the biomarkers using additive regression trees and the biomarker-by-treatment effect using a single regression tree. Bayesian approach is utilized to periodically revise the split variables and the split rules of the decision trees, which provides a better overall fitting. Gibbs sampler is implemented in the MCMC procedure, which updates the prognostic trees and the interaction tree separately. We use the posterior distribution of the interaction tree to construct the predictive scores of the biomarkers and to identify the subgroup where the treatment is superior to the control. Numerical simulations show that our proposed method performs well under various settings comparing to existing methods. We also demonstrate an application of our method in a real clinical trial. PMID- 29020512 TI - Enhanced alpha-amylase production by a marine protist, Ulkenia sp. using response surface methodology and genetic algorithm. AB - Amylases are a group of enzymes with a wide variety of industrial applications. Enhancement of alpha-amylase production from the marine protists, thraustochytrids has been attempted for the first time by applying statistical based experimental designs using response surface methodology (RSM) and genetic algorithm (GA) for optimization of the most influencing process variables. A full factorial central composite experimental design was used to study the cumulative interactive effect of nutritional components viz., glucose, corn starch, and yeast extract. RSM was performed on two objectives, that is, growth of Ulkenia sp. AH-2 (ATCC(r) PRA-296) and alpha-amylase activity. When GA was conducted for maximization of the enzyme activity, the optimal alpha-amylase activity was found to be 71.20 U/mL which was close to that obtained by RSM (71.93 U/mL), both of which were in agreement with the predicted value of 72.37 U/mL. Optimal growth at the optimized process variables was found to be 1.89A660nm. The optimized medium increased alpha-amylase production by 1.2-fold. PMID- 29020513 TI - Application of an integrated Weather Research and Forecasting (WRF)/CALPUFF modeling tool for source apportionment of atmospheric pollutants for air quality management: A case study in the urban area of Benxi, China. AB - : In this study, the authors endeavored to develop an effective framework for improving local urban air quality on meso-micro scales in cities in China that are experiencing rapid urbanization. Within this framework, the integrated Weather Research and Forecasting (WRF)/CALPUFF modeling system was applied to simulate the concentration distributions of typical pollutants (particulate matter with an aerodynamic diameter <10 MUm [PM10], sulfur dioxide [SO2], and nitrogen oxides [NOx]) in the urban area of Benxi. Statistical analyses were performed to verify the credibility of this simulation, including the meteorological fields and concentration fields. The sources were then categorized using two different classification methods (the district-based and type-based methods), and the contributions to the pollutant concentrations from each source category were computed to provide a basis for appropriate control measures. The statistical indexes showed that CALMET had sufficient ability to predict the meteorological conditions, such as the wind fields and temperatures, which provided meteorological data for the subsequent CALPUFF run. The simulated concentrations from CALPUFF showed considerable agreement with the observed values but were generally underestimated. The spatial-temporal concentration pattern revealed that the maximum concentrations tended to appear in the urban centers and during the winter. In terms of their contributions to pollutant concentrations, the districts of Xihu, Pingshan, and Mingshan all affected the urban air quality to different degrees. According to the type-based classification, which categorized the pollution sources as belonging to the Bengang Group, large point sources, small point sources, and area sources, the source apportionment showed that the Bengang Group, the large point sources, and the area sources had considerable impacts on urban air quality. Finally, combined with the industrial characteristics, detailed control measures were proposed with which local policy makers could improve the urban air quality in Benxi. In summary, the results of this study showed that this framework has credibility for effectively improving urban air quality, based on the source apportionment of atmospheric pollutants. IMPLICATIONS: The authors endeavored to build up an effective framework based on the integrated WRF/CALPUFF to improve the air quality in many cities on meso-micro scales in China. Via this framework, the integrated modeling tool is accurately used to study the characteristics of meteorological fields, concentration fields, and source apportionments of pollutants in target area. The impacts of classified sources on air quality together with the industrial characteristics can provide more effective control measures for improving air quality. Through the case study, the technical framework developed in this study, particularly the source apportionment, could provide important data and technical support for policy makers to assess air pollution on the scale of a city in China or even the world. PMID- 29020514 TI - Repair of Iron Centers RIC protein contributes to the virulence of Staphylococcus aureus. AB - RICs are a family of bacterial proteins involved in the repair of iron centers containing proteins damaged by the antimicrobial reactive species liberated by the innate immune system of infected hosts. Staphylococcus aureus is a human pathogen with increasing antibiotic resistance that also contains a RIC-like protein. In this work, we show that the survival of S. aureus within macrophages decreases upon inactivation of ric, and that the viability was restored to levels similar to the wild-type strain by reintroduction of ric via in trans complementation. Importantly, in macrophages that do not produce reactive oxygen species, the lower survival of the ric mutant was no longer observed. In lung epithelial cells, the intracellular viability of the S. aureus ric mutant was also shown to be lower than that of the wild-type. The wax moth larvae Galleria mellonella infected with S. aureus ric mutant presented an approximately 2.5 times higher survival when compared to the wild-type strain. Moreover, significantly lower bacterial loads were determined in the larvae hemolymph infected with strains not expressing ric, and complementation assays confirmed that this behavior was related to RIC. Furthermore, expression of the S. aureus ric gene within the larvae increased along the course of infection with a ~20 fold increase after 8 h of infection. Altogether, the data show that RIC is important for the virulence of S. aureus. PMID- 29020515 TI - Manufacturing history of etanercept (Enbrel(r)): Consistency of product quality through major process revisions. AB - Etanercept (ETN) (Enbrel(r)) is a soluble protein that binds to, and specifically inhibits, tumor necrosis factor (TNF), a proinflammatory cytokine. ETN is synthesized in Chinese hamster ovary cells by recombinant DNA technology as a fusion protein, with a fully human TNFRII ectodomain linked to the Fc portion of human IgG1. Successful manufacture of biologics, such as ETN, requires sophisticated process and product understanding, as well as meticulous control of operations to maintain product consistency. The objective of this evaluation was to show that the product profile of ETN drug substance (DS) has been consistent over the course of production. Multiple orthogonal biochemical analyses, which included evaluation of attributes indicative of product purity, potency, and quality, were assessed on >2,000 batches of ETN from three sites of DS manufacture, during the period 1998-2015. Based on the key quality attributes of product purity (assessed by hydrophobic interaction chromatography HPLC), binding activity (to TNF by ELISA), potency (inhibition of TNF-induced apoptosis by cell based bioassay) and quality (N-linked oligosaccharide map), we show that the integrity of ETN DS has remained consistent over time. This consistency was maintained through three major enhancements to the initial process of manufacturing that were supported by detailed comparability assessments, and approved by the European Medicines Agency. Examination of results for all major quality attributes for ETN DS indicates a highly consistent process for over 18 years and throughout changes to the manufacturing process, without affecting safety and efficacy, as demonstrated across a wide range of clinical trials of ETN in multiple inflammatory diseases. PMID- 29020516 TI - Seasonal dynamics and fungicide sensitivity of organisms causing brown patch of tall fescue in North Carolina. AB - Brown patch, caused by multiple species of Rhizoctonia and Rhizoctonia-like fungi, is the most severe summer disease of tall fescue in home lawns across the southeastern United States. Home lawns were surveyed in central North Carolina from 2013 to 2015 to determine the organisms present during typical epidemics of brown patch in tall fescue. Isolates of Rhizoctonia and Rhizoctonia-like fungi were obtained by sampling 147 locations in July 2013 and May and July 2014. In addition, 11 sites were sampled once a week for 12 consecutive weeks from late May to the end of July 2015. All isolates were identified to species and anastomosis group with nuc rDNA internal transcribed spacer (ITS) sequence analysis. Isolations from brown patch lesions in May 2014 predominately yielded Ceratobasidium cereale (77% of the organisms recovered), whereas the organisms recovered in July 2013 and 2014 were R. solani AG 2-2-IIIB (44%), R. solani AG 1 IB (37%), and R. zeae (14%). In 2015, Ceratobasidium cereale was isolated from all 11 locations in May but was replaced by Rhizoctonia species in June and July. Sensitivity of the May 2014 isolates to multiple concentrations of the fungicides azoxystrobin, flutolanil, fluxapyroxad, and propiconazole was compared with sensitivity of isolates collected in 2003, to determine whether multiple years of exposure to fungicides applied for brown patch control had altered fungicide sensitivity. Historical isolates of R. solani, which had never been exposed to fungicide applications for brown patch control, were also included for comparison. Mean EC50 values (concentration of fungicide needed to inhibit mycelial growth by 50%) varied across fungicides and species, but no resistance was observed, and there was no apparent shift in sensitivity over the years. An additional 94 isolates from 2015 were screened against azoxystrobin, flutolanil, fluxapyroxad, and propiconazole, and fungicide insensitivity was not observed. PMID- 29020517 TI - Phylogenetic assessment of Chromocyphellaceae (Agaricineae, Basidiomycota) and a new lamellate species of Chromocyphella. AB - Cyphelloid fungi represent a polyphyletic assemblage of reduced agarics, including the brown-spored family Chromocyphellaceae. In order to elucidate the phylogenetic position of Chromocyphellaceae, newly generated sequences of Chromocyphella were included in a multigene alignment of the Agaricineae and phylogenetically analyzed. The current analyses show that the Chromocyphella muscicola specimen used to phylogenetically place Chromocyphellaceae in its original description was misidentified and that the Chromocyphellaceae nests in the Hymenogastraceae, Chromocyphella being sister to Flammula. Chromocyphella is emended, including now a new species with lamellate and stipitate basidiomata, C. lamellata. The name Cymbella crouanii, type species of Chromocyphella, is lecto- and epitypified. Our analyses support a new origin of cyphelloid fungi. The shift to a cyphelloid basidioma from an agaric ancestor is suggested to have occurred in two evolutionary steps in Chromocyphella, an initial reduction in basidioma size and a subsequent loss of lamellae and stipe. PMID- 29020519 TI - Emergent is Authentic: A Sociomaterial Perspective on Simulation-Enhanced Interprofessional Education. AB - This Conversations Starter article presents a selected research abstract from the 2017 Association of American Medical Colleges Western Region Group on Educational Affairs annual spring meeting. The abstract is paired with the integrative commentary of three experts who shared their thoughts stimulated by the study. The commentary explores the implications of sociomaterial perspectives for conceptualizing authenticity in the design and evaluation of simulation-enhanced interprofessional education. PMID- 29020522 TI - Teaching, Learning, and Performance in the Surgical Workplace: Insights From the Examination of Intraoperative Interactions. AB - This Conversations Starter article presents a selected research abstract from the 2017 Association of American Medical Colleges Central Region Group on Educational Affairs annual spring meeting. The abstract is paired with the integrative commentary of three experts who shared their thoughts stimulated by the study. These thoughts explore the value of examining intraoperative interactions among attending surgeons and residents for enhancing instructional scaffolding; entrustment decision making; and distinguishing teaching, learning, and performance in the workplace. PMID- 29020521 TI - "Yes, and ..." Exploring the Future of Learning Analytics in Medical Education. AB - This Conversations Starter article presents a selected research abstract from the 2017 Association of American Medical Colleges Northeastern Region Group on Educational Affairs annual spring meeting. The abstract is paired with the integrative commentary of three experts who shared their thoughts stimulated by the study. Commentators brainstormed "what's next" with learning analytics in medical education, including advancements in interaction metrics and the use of interactivity analysis to deepen understanding of perceptual, cognitive, and social learning and transfer processes. PMID- 29020523 TI - Actions (Can) Speak Louder Than Words. PMID- 29020524 TI - Teachers as Learners: Developing Professionalism Feedback Skills via Observed Structured Teaching Encounters. AB - This Conversations Starter article presents a selected research abstract from the 2017 Association of American Medical Colleges Southern Region Group on Educational Affairs annual spring meeting. The abstract is paired with the integrative commentary of 4 experts who shared their thoughts stimulated by the study. These thoughts explore the value of the Observed Structured Teaching Encounter in providing structured opportunities for medical students to engage with the complexities of providing peer feedback on professionalism. PMID- 29020527 TI - EOV Editorial Board page. PMID- 29020528 TI - Comments on Jennifer Hoult's "Response to Brand and McEwen (2016) Editorial: Advocacy for violations of legal rights is not advocacy for justice." PMID- 29020526 TI - Antioxidant and mercury chelating activity of Psidium guajava var. pomifera L. leaves hydroalcoholic extract. AB - Mercury (Hg) is widely distributed in the environment and is known to produce several adverse effects in organisms. The aim of the present study was to examine the in vitro antioxidant activity and Hg chelating ability of the hydroalcoholic extract of Psidium guajava leaves (HEPG). In addition, the potential protective effects of HEPG against Hg(II) were evaluated using a yeast model (Saccharomyces cerevisiae). HEPG was found to exert significant antioxidant activity in 2,2 diphenyl-1-picrylhydrazyl scavenger and inhibition of lipid peroxidation induced by Fe(II) assays in a concentration-dependent manner. The extract also exhibited significant Hg(II) chelating activity. In yeast, Hg(II) induced a significant decrease in cell viability. In contrast, HEPG partially prevented the fall in cell viability induced by Hg(II). In conclusion, HEPG exhibited protective effects against Hg(II)-mediated toxicity, which may be related to both antioxidant and Hg(II)-chelating activities. PMID- 29020525 TI - Social Determinants of Adherence to Pulmonary Rehabilitation for Chronic Obstructive Pulmonary Disease. AB - Adherence to pulmonary rehabilitation (PR) is low. Previous studies have focused on clinical predictors of PR completion. We aimed to identify social determinants of adherence to PR. A cross-sectional analysis of a database of COPD patients (N = 455) in an outpatient PR program was performed. Adherence, a ratio of attended to-prescribed sessions, was coded as low (<35%), moderate (35-85%), and high (>85%). Individual-level measures included age, sex, race, BMI, smoking status, pack-years, baseline 6-minute walk distance (6MWD: <150, 150-249, >=250), co morbidities, depression, and prescribed PR sessions (<=20, 21-30, >30). Fifteen area-level measures aggregated to Census tracts were obtained from the U.S. Census after geocoding patients' addresses. Using exploratory factor analysis, a neighborhood socioeconomic disadvantage index was constructed, which included variables with factor loading >0.5: poverty, public assistance, households without vehicles, cost burden, unemployment, and minority population. Multivariate regression models were adjusted for clustering on Census tracts. Twenty-six percent of patients had low adherence, 23% were moderately adherent, 51% were highly adherent. In the best fitted full model, each decile increase in neighborhood socioeconomic disadvantage increased the risk of moderate vs high adherence by 14% (p < 0.01). Smoking tripled the relative risk of low adherence (p < 0.01), while each increase in 6MWD category decreased that risk by 72% (p < 0.01) and 84% (p < 0.001), respectively. These findings show that, relative to high adherence, low adherence is associated with limited functional capacity and current smoking, while moderate adherence is associated with socioeconomic disadvantage. The distinction highlights different pathways to suboptimal adherence and calls for tailored intervention approaches. PMID- 29020529 TI - Adipose stem cells. PMID- 29020530 TI - Doctor, Should I Use Computer Games to Prevent Dementia? AB - Commercial advertising of computerized "brain games" may result in clinicians being asked whether brain games prevent dementia. To address this question, we conducted a review of computerized cognitive training (CCT) interventions in older adults with Mild Cognitive Impairment (MCI). Studies were identified using a PubMed and PSYCinfo search for review articles. Within 11 review articles we identified 15 unique studies. Nine of these studies used commercially available "brain games" as their primary CCT intervention. Nine of 12 studies that examined the effect of CCT on episodic memory performance showed significant improvements in this domain. Furthermore, four of six studies that examined mood and or anxiety showed improvements in these domains following a CCT intervention. While more than double the amount of time was spent on the training that used commercially available "brain games" versus those designed by investigators, there were no differences in outcomes. Overall, it appears that "brain games" may modestly benefit aspects of cognition and aspects of mood in patients presenting with MCI. However, there is no direct evidence from the studies presented here that "brain games"/CCT can prevent dementia. We present recommendations to consider when discussing "brain games" with persons with MCI. PMID- 29020531 TI - Mechanisms of antibiotic resistance in bacteria mediated by silver nanoparticles. AB - Silver nanoparticles (AgNPs) are widely used in industry, consumer products, and medical appliances due to their efficient antimicrobial properties. However, information on environmental toxicity and bacterial impact of these particles is not completely elucidated. Results showed that AgNPs produced growth inhibition and oxidative stress in bacteria Escherichia coli (gram negative) and Staphylococcus aureus (gram positive), with half-maximal inhibitory concentrations (IC50) of 12 and 7 mg/L, respectively. Surprisingly, bacteria pre exposed to sublethal dose of AgNPs exhibited increased resistance toward antibiotics (ampicillin and Pen-Strep) with IC50 elevated by 3-13-fold. Further, AgNP pre-exposure raised the minimal inhibitory concentration and minimal biocidal concentration by two- to eightfold when cells were challenged with antibiotics with diverse mechanisms of action (penicillin, chloramphenicol, and kanamycin). Interestingly, we found that upon exposure to ampicillin, strains pretreated with AgNPs exhibited lower levels of membrane damage and oxidative stress, together with elevated levels of intracellular ATP relative to untreated cells. Bacterial reverse mutation assay (Ames test) showed that AgNPs are highly mutagenic, consistent with further assays demonstrating abiotic reactive oxygen species (ROS) generation and intrinsic DNA cleavage activity in vitro of AgNPs. Overall, our results suggest that AgNPs enhance bacterial resistance to antibiotics by promoting stress tolerance through induction of intracellular ROS. Our data suggest potential consequences of incidental environmental exposure of bacteria to AgNPs and indicate the need to regulate use and disposal of AgNPs in industry and consumer products. PMID- 29020533 TI - Choroidal Structural Changes in Tubercular Multifocal Serpiginoid Choroiditis. AB - PURPOSE: To assess choroidal vascular changes among patients with tubercular multifocal serpiginoid choroiditis (TB MSC) using previously validated techniques. METHODS: Patients with TB MSC (n = 18) and healthy controls (n = 30) underwent enhanced-depth imaging optical coherence tomography (EDI-OCT) imaging. Using previously validated algorithm of image binarization, EDI-OCT scans were segmented to derive total choroidal area, luminal area, stromal area, and choroidal vascularity index (CVI). RESULTS: There was a statistically significant difference in the CVI between controls (66.90 +/- 1.77%) and TB MSC patients (65.46 +/- 2.53%; p < 0.001). There was significant reduction in CVI at follow-up (3 months) (63.77 +/- 3.91%; p = 0.05). The choroidal thickness was higher in TB MSC compared to controls (278.90 +/- 57.84 um versus 329.33 +/- 27.69 um; p = 0.001). CONCLUSIONS: CVI provides insight into structural changes in choroid in TB MSC. During the active disease, there is relative decrease in choroidal vascularity. As the lesions heal, choriocapillaris atrophy occurs with remodeling of choroid. PMID- 29020534 TI - Extent of Resection in Glioblastoma. PMID- 29020532 TI - Trends in point-of-sale tobacco marketing around college campuses: Opportunities for enhanced tobacco control efforts. AB - OBJECTIVE: Colleges have implemented policies to limit tobacco use on-campus; however, the off-campus environment is often overlooked in tobacco control efforts. We assessed availability, marketing, and promotion of cigarettes, snus, and traditional smokeless tobacco (SLT) in a sample of communities surrounding 11 college campuses in North Carolina and Virginia. PARTICIPANTS: Between January March of 2011, 2012 and 2013, 481 tobacco-selling retailers, including convenience stores, pharmacies and supermarkets, located near campuses were assessed. METHODS: Trained observers completed annual point-of-sale assessments. RESULTS: The percentage of stores selling (81.4% to 58.6%; p < .0001) and advertising snus (80.1% to 53.11%; p < .0001) significantly decreased over time. Convenience stores increased promotions of cigarettes (65.4% to 72.8%; p = 0.04) and SLT (3.1% to 23.3%; p = 0.02). CONCLUSIONS: Off-campus environments have abundant tobacco availability and marketing. Colleges should collaborate with state and local tobacco control advocates to address tobacco promotion near campuses to potentially decrease product appeal and access among young adults. PMID- 29020535 TI - Treatment of Glioblastoma. AB - Glioblastoma is the most common and most aggressive form of primary brain tumor in adults and contributes to high social and medical burden as a result of its incurable nature and significant neurologic morbidity. Despite ongoing research, there has not been improvement in survival in glioblastoma. This review discusses recent advances in clinically significant molecular profiling, including IDH mutation status and O6-methylguanine-DNA methyltransferase ( MGMT) promoter methylation. We review updates in management of newly diagnosed and recurrent glioblastoma, as well as common difficulties in management, such as pseudoprogression and pseudoresponse. Ongoing translational research in targeted therapy and immunotherapy is briefly discussed. PMID- 29020536 TI - Novel Considerations in the Approach to Glioblastoma. PMID- 29020537 TI - Challenges of Diagnosing Viral Anterior Uveitis. AB - The viral causes of anterior uveitis (AU) emerged with the use of novel molecular diagnostic tests and serologic tests adapted for small volumes (Goldmann-Witmer Coefficient). The viral causes of AU may be underestimated, and some of the presumed idiopathic AU cases will probably be proven to be of viral origin in the coming years. So far, a viral origin of AU was suspected in patients who presented with unilateral hypertensive AU. It is not clear which clinical presentations should raise a suspicion of viral etiology. There is an overlap in the clinical manifestations of AU caused by viruses and other non-viral forms of AU. A viral cause of AU should be suspected in patients with unilateral AU, exhibiting small or medium sized KPs, some form of iris atrophy, high IOP and early development of a cataract and the definitive diagnosis can be proven by aqueous humor analysis. PMID- 29020538 TI - Orbital Inflammatory Syndrome Post Group A Streptococcal Infection - Case Series and Review of Literature. AB - OBJECTIVE: To report new cases of orbital inflammatory syndrome (OIS) post group A streptococcal (GAS) infection and review the literature. METHODS: A retrospective case series of patients with OIS post GAS infection seen in our clinic (from January 2015 to December 2016) and review of additional patients from the literature. RESULTS: A total of nine patients with OIS post GAS infection were included in the study (four patients seen in our clinic and five from previous literature); seven females and two males, three children (under the age of 16), and six adults. Eight patients (89%) presented with a single rectus muscle (5 medial, 3 lateral) myositis, and one (11%) presented with posterior scleritis and diffuse OIS. CONCLUSIONS: Although there are very few reports on OIS post GAS infection, it may be more common than previously thought and should be considered in the differential diagnosis of patients with orbital inflammation. PMID- 29020539 TI - The Exposure Effects of Online Model Pictures and Weight-Related Persuasive Messages on Women's Weight-Loss Planned Behaviors. AB - This study examined how exposure to pictures of women with different body sizes (thin, obese), physical attractiveness levels (attractive, unattractive), along with exposure to weight-related messages (pro-anorexia, anti-anorexia) embedded in a fashion website affected female participants' planned behavior toward weight loss. Participants exposed to attractive model pictures showed higher intentions, attitudes, and subjective norms to lose weight compared with unattractive models. Additionally, participants exposed to thin and attractive model pictures indicated the highest attitudes and self-efficacy to lose weight, whereas those exposed to thin and unattractive model pictures indicated the lowest. Furthermore, weight-related messages moderated the effect of model appearance (body size and attractiveness) on controllability of weight-loss activities. However, website pictures' body size differences had no main effects on planned behavior toward weight loss. These effects are discussed in the light of social comparison mechanisms. PMID- 29020540 TI - A Trial to Test a Novel Approach to Diabetes Prevention. PMID- 29020541 TI - Can We Breathe Easy If PAP Therapy Is Withheld? PMID- 29020542 TI - Fairness and Transparency in an Expanded Access Program: Allocation of the Only Treatment for SMA1. PMID- 29020543 TI - Hard Choices for Vulnerable Patients: Some Lessons Learned That May Apply. PMID- 29020544 TI - Is There a 'Right to Try' Experimental Therapies? Ethical Criteria for Selecting Patients With Spinal Muscular Atrophy to Receive Nusinersen in an Expanded Access Program. PMID- 29020545 TI - The Paywall as Metaphor and Symptom. PMID- 29020546 TI - The Human Right to Enjoy the Benefits of the Progress of Science and Its Applications. PMID- 29020547 TI - Imagining Truly Open Access Bioethics: From Dreams to Reality. PMID- 29020548 TI - Land-Locked Developing Countries and Their Infrastructural Challenges in Contributing to Global Ethics: A Zimbabwe Case Study. PMID- 29020549 TI - A Call for Open Access and Empathy Is Not Enough: Hands on Are Needed! PMID- 29020550 TI - Global Bioethics and Scientific Sanction. PMID- 29020551 TI - Justice and Bioethics: Who Should Finance Academic Publishing? PMID- 29020552 TI - Response to Open Peer Commentaries on "Saving Life, Limb, and Eyesight: Assessing the Medical Rules of Eligibility During Armed Conflict". PMID- 29020553 TI - Physician-Soldier: Navigating the Tension Between Military and Medical Necessity. PMID- 29020554 TI - Is It Ethically Acceptable to Screen Patients for Obstructive Sleep Apnea and Not Offer Them Positive Air Pressure Therapy in a Clinical Trial? PMID- 29020555 TI - A Care Ethics Approach to Medical Eligibility in Armed Conflict. PMID- 29020556 TI - How to Enhance Engagement in Bioethics in the Developing World for Global Bioethics. PMID- 29020557 TI - Risks of Clinical Research Must Be Reasonable and Necessary. PMID- 29020558 TI - A Multifaceted Approach Is Needed to Respond to the Plight of Bioethicists in Accessing Literature. PMID- 29020559 TI - Biopolitics, Pseudoscience, and Bioethics in the Global South. PMID- 29020560 TI - Expanded Access for Nusinersen in Patients With Spinal Muscular Atropy: Negotiating Limited Data, Limited Alternative Treatments, and Limited Hospital Resources. PMID- 29020561 TI - Saving Life, Limb, and Eyesight: Assessing the Medical Rules of Eligibility During Armed Conflict. AB - Medical rules of eligibility permit severely injured Iraqi and Afghan nationals to receive care in Coalition medical facilities only if bed space is available and their injuries result directly from Coalition fire. The first rule favors Coalition soldiers over host-nation nationals and contradicts the principle of impartial, needs-based medical care. To justify preferential care for compatriots, wartime medicine invokes associative obligations of care that favor friends, family, and comrades-in-arms. Associative obligations have little place in peacetime medical care but significantly affect wartime medicine. The second rule suggests liability for collateral harm that is unsupported by international law and military ethics. Absent liability, there are pragmatic reasons to offer medical care to injured local civilians if it quells resentment and cements support for Coalition forces. In contrast to peacetime medicine, military necessity and associative obligations outweigh distributive principles based on medical need during war. PMID- 29020562 TI - A Question of Social Justice: How Policies of Profit Negate Engagement of Developing World Bioethicists and Undermine Global Bioethics. AB - We identify the ways the policies of leading international bioethics journals limit the participation of researchers working in the resource-constrained settings of low- and middle-income countries (LMICs) in the development of the field of bioethics. Lack of access to essential scholarly resources makes it extremely difficult, if not impossible, for many LMIC bioethicists to learn from, meaningfully engage in, and further contribute to the global bioethics discourse. Underrepresentation of LMIC perspectives in leading journals sustains the hegemony of Western bioethics, limits the presentation of diverse moral visions of life, health, and medicine, and undermines aspirations to create a truly "global" bioethics. Limited attention to this problem indicates a lack of empathy and moral imagination on the part of bioethicists in high-income countries, raises questions about the ethics of bioethics, and highlights the urgent need to find ways to remedy this social injustice. PMID- 29020563 TI - Responsibility for Collateral Harm. PMID- 29020564 TI - Can Bioethics Journals Become Role Models in Making Information, Data, Opinion, and Cross-Cultural Discussions Universally Available? PMID- 29020565 TI - Social Justice in Scholarly Publishing: Open Access Is the Only Way. PMID- 29020566 TI - Corrigendum. PMID- 29020567 TI - Research Ethics, Military Medical Ethics, and the Challenges of International Law. PMID- 29020568 TI - Associative Duties and Professional Obligations. PMID- 29020569 TI - Does Wartime Bioethics Really Triumph Over Peacetime Bioethics? PMID- 29020570 TI - Two-dimensional Solutions in a Multi-dimensional World? A Commentary on "Effect of Touch Screen Tablet Use on Fine Motor Development of Young Children". PMID- 29020572 TI - Variability in the primary emissions and secondary gas and particle formation from vehicles using bioethanol mixtures. AB - : Bioethanol for use in vehicles is becoming a substantial part of global energy infrastructure because it is renewable and some emissions are reduced. Carbon monoxide (CO) emissions and total hydrocarbons (THC) are reduced, but there is still controversy regarding emissions of nitrogen oxides (NOx), aldehydes, and ethanol; this may be a concern because all these compounds are precursors of ozone and secondary organic aerosol (SOA). The amount of emissions depends on the ethanol content, but it also may depend on the engine quality and ethanol origin. Thus, a photochemical chamber was used to study secondary gas and aerosol formation from two flex-fueled vehicles using different ethanol blends in gasoline. One vehicle and the fuel used were made in the United States, and the others were made in Brazil. Primary emissions of THC, CO, carbon dioxide (CO2), and nonmethane hydrocarbons (NMHC) from both vehicles decreased as the amount of ethanol in gasoline increased. NOx emissions in the U.S. and Brazilian cars decreased with ethanol content. However, emissions of THC, CO, and NOx from the Brazilian car were markedly higher than those from the U.S. car, showing high variability between vehicle technologies. In the Brazilian car, formation of secondary nitrogen dioxide (NO2) and ozone (O3) was lower for higher ethanol content in the fuel. In the U.S. car, NO2 and O3 had a small increase. Secondary particle (particulate matter [PM]) formation in the chamber decreased for both vehicles as the fraction of ethanol in fuel increased, consistent with previous studies. Secondary to primary PM ratios for pure gasoline is 11, also consistent with previous studies. In addition, the time required to form secondary PM is longer for higher ethanol blends. These results indicate that using higher ethanol blends may have a positive impact on air quality. IMPLICATIONS: The use of bioethanol can significantly reduce petroleum use and greenhouse gas emissions worldwide. Given the extent of its use, it is important to understand its effect on urban pollution. There is a controversy on whether there is a reduction or increase in PM emission when using ethanol blends. Primary emissions of THC, CO, CO2, NOx, and NMHC for both cars decreased as the fraction of ethanol in gasoline increased. Using a photochemical chamber, the authors have found a decrease in the formation of secondary particles and the time required to form secondary PM is longer when using higher ethanol blends. PMID- 29020573 TI - New species of Talaromyces isolated from maize, indoor air, and other substrates. AB - Talaromyces strains isolated from maize seeds and the built environment were examined taxonomically because they could not be identified as previously described species. Using phenotypic analysis, DNA sequencing, and phylogenetic and concordance analyses, the authors discovered and described 10 new species in sect. Islandici and 1 new species in sect. Subinflati. Taxonomic novelties in sect. Islandici are Talaromyces delawarensis, T. herodensis, T. juglandicola, T. kilbournensis, T. novojersensis, T. ricevillensis, T. rogersiae, T. siglerae, T. subtropicalis, and T. tiftonensis, and the species from sect. Subinflata is T. tzapotlensis. The isolate of T. siglerae is unusual in Talaromyces because it produced a Sagenomella-like anamorph, but phylogenetic analysis placed it in Talaromyces. Talaromyces rotundus is known from a few isolates, but searches with internal transcribed spacer (ITS) sequences in GenBank revealed that it is commonly endolichenous with Lasallia hispanica. Talaromyces wortmannii also has a role as an endophyte of the aquatic plant Persicaria amphibia, based on ITS sequence records from GenBank. PMID- 29020574 TI - Suicidal and Help-Seeking Behaviors Among Youth in an Online Lesbian, Gay, Bisexual, Transgender, Queer, and Questioning Social Network. AB - LGBTQ youth have a great burden for suicidal ideation/behavior compared to their non-LGBTQ peers. While scholars have explored risk factors for suicidal behaviors, little is known about protective factors among LGBTQ youth, let alone within group differences in terms of help-seeking. Data were collected from 203 TrevorSpace (e.g., a social network for LGBTQ youth) users via online survey to examine suicidal and help-seeking behaviors among LGBTQ individuals. Among participants who reported suicidal ideation/behavior, a large proportion did not seek help (73.1% of gay men, 33.3% of bisexual men, 42.9% of bisexual women, 14.3% of lesbian women, 41.2% of queer individuals) when they considered or attempted suicide. Among those who sought support, reaching out to a friend was most common. However, family support was associated with fewer suicidal behaviors. Our findings underscore the need to examine the effectiveness of specific sources of help and the impact of exposure to social connectedness. PMID- 29020575 TI - Possible Selves in Adolescence: Development and Validation of a Scale for their Assessment. AB - Possible selves (PSs) have a significant role in adolescents' development. For this reason, it is of great importance to have adequate measures to operationalize them. The aim of this work is to present the construction and validation of a scale to assess PSs at the end of high school in multiple domains. Participants were adolescents (n = 320) of both sexes (female = 51.3%) from high-schools in Buenos Aires City, Argentina (age, M = 14.9, SD = 1.5). The scale was developed based on a literature review and a previous qualitative study. Expert judges' assessment revealed that it has good content validity. The scale's structure was studied with exploratory factor analysis and a 5-factor structure with theoretical meaning was found. Spearman's correlations between current and future self-perceptions show evidence of convergent validity. Mann Whitney U test shows that the scale can discriminate by sex and age. The scale shows adequate to very good internal consistency. These results show that the scale has adequate psychometric properties to assess PSs in Argentine adolescents. The advantages of this scale relative to existing measures of PSs are discussed. Scale development allows us to know more about how adolescents think they will be during a significant life transition such as the end of high school. This is particularly important for planning interventions that focus on motivation and behavior regulation. PMID- 29020576 TI - Two Special Sections: Addictions and Substance Use & Aging and Social and Economic Justice. PMID- 29020571 TI - Factors and molecules that could impact cell differentiation in the embryo generated by nuclear transfer. AB - Somatic cell nuclear transfer is a technique to create an embryo using an enucleated oocyte and a donor nucleus. Nucleus of somatic cells must be reprogrammed in order to participate in normal development within an enucleated egg. Reprogramming refers to the erasing and remodeling of cellular epigenetic marks to a lower differentiation state. Somatic nuclei must be reprogrammed by factors in the oocyte cytoplasm to a rather totipotent state since the reconstructed embryo must initiate embryo development from the one cell stage to term. In embryos reconstructed by nuclear transfer, the donor genetic material must respond to the cytoplasmic environment of the cytoplast and recapitulate this normal developmental process. Enucleation is critically important for cloning efficiency because may affect the ultrastructure of the remaining cytoplast, thus resulting in a decline or destruction of its cellular compartments. Nonetheless, the effects of in vitro culturing are yet to be fully understood. In vitro oocyte maturation can affect the abundance of specific transcripts and are likely to deplete the developmental competence. The epigenetic modifications established during cellular differentiation are a major factor determining this low efficiency as they act as epigenetic barriers restricting reprogramming of somatic nuclei. In this review we discuss some factors that could impact cell differentiation in embryo generated by nuclear transfer. PMID- 29020577 TI - Hospital Quality and Hospital Value-Based Purchasing. PMID- 29020578 TI - Hospital Quality and Hospital Value-Based Purchasing. PMID- 29020580 TI - Calcium Oxalate Crystals in Ethylene Glycol Toxicity. PMID- 29020579 TI - Delirium in Hospitalized Older Adults. PMID- 29020581 TI - CD55 Deficiency and Protein-Losing Enteropathy. PMID- 29020582 TI - CD55 Deficiency and Protein-Losing Enteropathy. PMID- 29020585 TI - Health Effects of Overweight and Obesity in 195 Countries. PMID- 29020584 TI - Health Effects of Overweight and Obesity in 195 Countries. PMID- 29020586 TI - Misdirections in Informed Consent - Impediments to Health Care Innovation. PMID- 29020583 TI - Glecaprevir and Pibrentasvir in Patients with HCV and Severe Renal Impairment. AB - BACKGROUND: Chronic hepatitis C virus (HCV) infection is more prevalent among patients who have chronic kidney disease than among those who do not have the disease. Patients with chronic kidney disease who also have HCV infection are at higher risk for progression to end-stage renal disease than those who have chronic kidney disease without HCV infection. Patients with both HCV infection and advanced chronic kidney disease have limited treatment options. METHODS: We conducted a multicenter, open-label, phase 3 trial to evaluate the efficacy and safety of treatment with the combination of the NS3/4A protease inhibitor glecaprevir and the NS5A inhibitor pibrentasvir for 12 weeks in adults who had HCV genotype 1, 2, 3, 4, 5, or 6 infection and also had compensated liver disease (with or without cirrhosis) with severe renal impairment, dependence on dialysis, or both. Patients had stage 4 or 5 chronic kidney disease and either had received no previous treatment for HCV infection or had received previous treatment with interferon or pegylated interferon, ribavirin, sofosbuvir, or a combination of these medications. The primary end point was a sustained virologic response 12 weeks after the end of treatment. RESULTS: Among the 104 patients enrolled in the trial, 52% had genotype 1 infection, 16% had genotype 2 infection, 11% had genotype 3 infection, 19% had genotype 4 infection, and 2% had genotype 5 or 6 infection. The sustained virologic response rate was 98% (102 of 104 patients; 95% confidence interval, 95 to 100). No patients had virologic failure during treatment, and no patients had a virologic relapse after the end of treatment. Adverse events that were reported in at least 10% of the patients were pruritus, fatigue, and nausea. Serious adverse events were reported in 24% of the patients. Four patients discontinued the trial treatment prematurely because of adverse events; three of these patients had a sustained virologic response. CONCLUSIONS: Treatment with glecaprevir and pibrentasvir for 12 weeks resulted in a high rate of sustained virologic response in patients with stage 4 or 5 chronic kidney disease and HCV infection. (Funded by AbbVie; ClinicalTrials.gov number, NCT02651194 .). PMID- 29020587 TI - Carotid Sinus Massage. PMID- 29020588 TI - Case 31-2017. A 19-Month-Old Girl with Failure to Thrive. PMID- 29020590 TI - Crisis in the Sustainability of the U.S. Blood System. PMID- 29020591 TI - Celiac Disease and Autoimmunity - The Missing Ingredient. PMID- 29020592 TI - First FDA Approval Agnostic of Cancer Site - When a Biomarker Defines the Indication. PMID- 29020593 TI - Air Pollution and Mortality in the Medicare Population. PMID- 29020594 TI - Air Pollution and Mortality in the Medicare Population. PMID- 29020595 TI - An Early American Smallpox Vaccine Based on Horsepox. PMID- 29020596 TI - Voluntary Site Accreditation - Improving the Execution of Multicenter Clinical Trials. PMID- 29020597 TI - Lingual Papillomas. PMID- 29020589 TI - Phase 2 Placebo-Controlled Trial of Two Vaccines to Prevent Ebola in Liberia. AB - BACKGROUND: The safety and efficacy of vaccines to prevent Ebola virus disease (EVD) were unknown when the incidence of EVD was peaking in Liberia. METHODS: We initiated a randomized, placebo-controlled, phase 3 trial of the chimpanzee adenovirus 3 vaccine (ChAd3-EBO-Z) and the recombinant vesicular stomatitis virus vaccine (rVSV?G-ZEBOV-GP) in Liberia. A phase 2 subtrial was embedded to evaluate safety and immunogenicity. Because the incidence of EVD declined in Liberia, the phase 2 component was expanded and the phase 3 component was eliminated. RESULTS: A total of 1500 adults underwent randomization and were followed for 12 months. The median age of the participants was 30 years; 36.6% of the participants were women. During the week after the administration of vaccine or placebo, adverse events occurred significantly more often with the active vaccines than with placebo; these events included injection-site reactions (in 28.5% of the patients in the ChAd3-EBO-Z group and 30.9% of those in the rVSV?G-ZEBOV-GP group, as compared with 6.8% of those in the placebo group), headache (in 25.1% and 31.9%, vs. 16.9%), muscle pain (in 22.3% and 26.9%, vs. 13.3%), feverishness (in 23.9% and 30.5%, vs. 9.0%), and fatigue (in 14.0% and 15.4%, vs. 8.8%) (P<0.001 for all comparisons); these differences were not seen at 1 month. Serious adverse events within 12 months after injection were seen in 40 participants (8.0%) in the ChAd3 EBO-Z group, in 47 (9.4%) in the rVSV?G-ZEBOV-GP group, and in 59 (11.8%) in the placebo group. By 1 month, an antibody response developed in 70.8% of the participants in the ChAd3-EBO-Z group and in 83.7% of those in the rVSV?G-ZEBOV GP group, as compared with 2.8% of those in the placebo group (P<0.001 for both comparisons). At 12 months, antibody responses in participants in the ChAd3-EBO-Z group (63.5%) and in those in the rVSV?G-ZEBOV-GP group (79.5%) remained significantly greater than in those in the placebo group (6.8%, P<0.001 for both comparisons). CONCLUSIONS: A randomized, placebo-controlled phase 2 trial of two vaccines that was rapidly initiated and completed in Liberia showed the capability of conducting rigorous research during an outbreak. By 1 month after vaccination, the vaccines had elicited immune responses that were largely maintained through 12 months. (Funded by the National Institutes of Allergy and Infectious Diseases and the Liberian Ministry of Health; PREVAIL I ClinicalTrials.gov number, NCT02344407 .). PMID- 29020598 TI - We Can Do Better - Improving Outcomes in the Midst of an Emergency. PMID- 29020599 TI - Trial of Tocilizumab in Giant-Cell Arteritis. PMID- 29020600 TI - Trial of Tocilizumab in Giant-Cell Arteritis. PMID- 29020602 TI - Grass inflorescence architecture and meristem determinacy. AB - The grass inflorescence is striking not only for its beauty and diversity, but also for its developmental complexity. While models of inflorescence architecture have been proposed in both eudicots and grasses, these are inadequate to fully explain the complex branching events that occur during the development of the grass inflorescence. Key to understanding grass inflorescence architecture is the meristem determinacy/indeterminacy decision, which regulates the number of branching events that occur. Here we review what has been learned about meristem determinacy from grass mutants with defects in inflorescence development. A picture is emerging of a complex network of signaling molecules and meristem identity factors that interact to regulate inflorescence meristem activity, many of which have been modified during crop domestication directly affecting yield traits. PMID- 29020601 TI - Pioglitazone, a PPARgamma agonist, reduces nicotine craving in humans, with marginal effects on abuse potential. AB - Possibly through their actions upon glia, peroxisome proliferator-activated receptor agonists (PPAR) have been shown to alter the abuse potential of addictive drugs in several preclinical models. The current study extends this research into the human laboratory as the first clinical study into the effects of the PPAR gamma agonist, pioglitazone, on the abuse potential of nicotine. Heavy smokers were recruited for this 3-week study. Upon admission, participants were randomized to either active (45mg, n=14) or placebo (0mg, n=13) PIO maintenance conditions for the duration of the study. After 5-7days of stabilization on a 7mg nicotine patch, participants began laboratory testing. On the 1st-4th test days, participants could self-administer cigarettes or receive money by making verbal choices for either option. On the 5th day, participants were administered 10 puffs of their usual brand of cigarette in the morning and later chose between smoking and money by making finger presses on a computer mouse in a progressive ratio self-administration task. Later on the 5th day participants also underwent a smoking cue exposure session. The 8th-11th test days were identical to the 1st-4th test days with the exception that during one of the test weeks de-nicotinized cigarettes were available, and during the other nicotinized cigarettes were available. Nicotinized cigarettes were always administered on the 5th and 12th days. On some measures PIO increased indicators of abuse potential, though this effect was typically not statistically significant. However, PIO did significantly reduce measures of craving. PMID- 29020603 TI - Transcriptional analysis of the putative glycosyltransferase gene (amv248) of the Amsacta moorei entomopoxvirus. AB - Amsacta moorei entomopoxvirus (AMEV), the most studied member of the genus Betaentomopoxvirus, was initially isolated from Red Hairy caterpillar larvae, Amsacta moorei. According to genome sequence and previous studies it was shown that amv248 encodes a putative glycosyltransferase that is the only conserved attachment protein in betaentomopoxviruses. Transcriptional analysis of the amv248 gene by RT-PCR and qPCR showed that transcription starts at 6h post infection (hpi). Also, transcription was not affected by a DNA replication inhibitor but was severely curtailed by a protein synthesis inhibitor. These results indicate that amv248 belongs to the intermediate class of gene expression. 5' and 3' untranslated regions analysis revealed that transcription initiates at position -126 relative to the translational start site, and ends between 50 and 83 bases after the stop codon. To narrow down the size and location of the gene's promoter, the upstream region as well as several different sized deletions thereof were generated and cloned upstream of a luciferase reporter gene. The constructs were used to measure the Firefly and Renilla luciferase activities in dual assays. The results showed that luciferase activity decreased when bases -198 to -235 of amv248 upstream region were missing. Sequence analysis among the intermediate gene promoters of AMEV showed that TTTAT(T/A)TT(T/A)2TTA is possibly a common motif, however, further investigations are needed to confirm this conclusion. PMID- 29020604 TI - Predictors of favourable outcome after in-hospital cardiac arrest treated with extracorporeal cardiopulmonary resuscitation: A systematic review and meta analysis. AB - AIMS: To identify the predictors of survival to discharge in adults resuscitated with extracorporeal cardiopulmonary resuscitation (ECPR) following in-hospital cardiac arrest (IHCA). METHODS: MEDLINE and ISI Web of Science were searched for eligible studies. Pooled Odds Ratio (OR) and Pooled Mean Difference (PMD) for each predictor were calculated. The quality of evidence (QOE) was evaluated according to the GRADE guidelines. RESULTS: Eleven studies were included totalling 856 patients. Of these, 324 (37.9%) survived to discharge. Good neurological outcome (Cerebral Performance Category 1 or 2) occurred in 222/263 (84.4%) survivors. Survival was associated with significantly higher odds of an initial shockable rhythm (OR 1.65; 95% confidence interval [95%CI] 1.05-2.61; p=0.03), shorter low-flow time (PMD -17.15 [-20.90, -13.40]min; p<0.00001), lower lactate levels both immediately before ECPR start (PMD -4.12 [-6.0,-2.24]mmol/L; p<0.0001) and on ICU admission (PMD -4.13 [-6.38, -1.88]mmol/L; p<0.0003), lower SOFA score (PMD -1.71 [-2.93, -0.50]; p=0.006) and lower creatinine levels within 24h after ICU admission (PMD -0.37 [-0.54, -0.19]mg/dl; p<0.00001). No significant association was found between survival and age, gender, or cardiac vs. non-cardiac aetiology. The overall QOE was low or very low. CONCLUSIONS: In adult IHCA treated with ECPR a shockable initial rhythm, a lower low-flow time, lower blood lactate levels before ECPR start or on ICU admission, and a lower SOFA score or creatinine levels in the first 24h after ICU admission were associated with a higher likelihood of survival. These factors could help identifying patients who are eligible for ECPR. PMID- 29020605 TI - Cloning and characterization of PHGPx and its synergistic role with p53 in mediating stress in Penaeus monodon. AB - Phospholipid-hydroperoxide glutathione peroxidase (PHGPx), a ubiquitous antioxidant enzyme in the glutathione peroxidase (GPx) family, plays multiple roles in different organisms. Here, a novel PHGPx (PmPHGPx) was identified from Penaeus monodon. The full-length PmPHGPx cDNA was 1885 bp in length with a 489-bp open reading frame (ORF) containing a selenocysteine codon, TGA177-179, and a selenocysteine insertion sequence in the 3'-UTR. The typical signature motifs of the GPx family were also detected in the PmPHGPx amino acid sequence. The PmPHGPx expression pattern showed tissue-specific variations, with the highest expression level in the heart and the lowest expression level in the muscle. To examine the relationship between Pmp53 and PmPHGPx, Pmp53 was successfully silenced with a dsRNA-p53 injection, and an obvious down-regulation in PmPHGPx expression was apparent. To clarify the functional roles of Pmp53 and PmPHGPx, their expression patterns were also assessed after pH-induced stress, salinity stress and heavy metal (Cu, Zn, and Cd) challenges. Similar trends in the expression profiles for PmPHGPx and Pmp53 were detected in both the gills and hepatopancreas in response to all stressors. Therefore, we conclude from the results that PmPHGPx acts synergistically and subsequently works cooperatively with Pmp53 toward mediating cell stress. This study improves our understanding of PmPHGPx and its synergistic role with Pmp53 in counteracting stressors in P. monodon. PMID- 29020606 TI - Using tDCS priming to improve brain function: Can metaplasticity provide the key to boosting outcomes? AB - Transcranial direct current stimulation (tDCS) has been trialled by many researchers attempting to improve brain function. Outcomes have been quite variable with seemingly similar protocols yielding either inconsistent or insufficiently robust improvements for clinical translation. A potentially fruitful avenue for increasing benefits conferred by tDCS stems from findings from motor and visual cortex studies that indicate tDCS priming prior to a subsequent period of stimulation (tDCS or transcranial magnetic stimulation) can in some cases boost outcomes compared to protocols without priming. The heightened effects from tDCS priming protocols are thought to be underpinned by metaplastic interactions, in which the state induced by the priming influences the effects of the second stimulation period. The purpose of the current review is to evaluate the potential of tDCS priming protocols to boost outcomes. After dissecting the literature, we conclude that although outcomes have varied, tDCS priming protocols have demonstrated sufficient promise to warrant attention from researchers trying to enhance the efficacy of tDCS. PMID- 29020608 TI - Toxicity of Cold Lake Blend and Western Canadian Select dilbits to standard aquatic test species. AB - Dilbits are blends of bitumen and natural gas condensates or crude oils with only limited toxicity data. Two dilbits, Cold Lake Blend and Western Canadian Select, were tested as either unweathered or weathered oils for acute and chronic toxicity to standard freshwater and estuarine organisms. Water accommodated fractions of the dilbits were characterized for total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAHs), and monoaromatics (BTEX). Acute toxicity of unweathered and weathered dilbits ranged from 4 to 16 mg/L TPH, 8 to 40 MUg/L total PAHs, and 0.7 to 16 mg/L BTEX in Ceriodaphnia dubia, Pimephales promelas, Americamysis bahia, and Menidia beryllina. Concentrations of weathered dilbits causing impaired growth (A. bahia) and reproduction (C. dubia) ranged from 0.8 to 3.5 mg/L TPH and 6 to 16 MUg/L PAHs. The two dilbits had generally similar acute and short term chronic toxicity expressed as TPH or total PAHs as other crude oils and other petroleum products. PMID- 29020609 TI - Overview of PAT process analysers applicable in monitoring of film coating unit operations for manufacturing of solid oral dosage forms. AB - Over the last two decades, regulatory agencies have demanded better understanding of pharmaceutical products and processes by implementing new technological approaches, such as process analytical technology (PAT). Process analysers present a key PAT tool, which enables effective process monitoring, and thus improved process control of medicinal product manufacturing. Process analysers applicable in pharmaceutical coating unit operations are comprehensibly described in the present article. The review is focused on monitoring of solid oral dosage forms during film coating in two most commonly used coating systems, i.e. pan and fluid bed coaters. Brief theoretical background and critical overview of process analysers used for real-time or near real-time (in-, on-, at- line) monitoring of critical quality attributes of film coated dosage forms are presented. Besides well recognized spectroscopic methods (NIR and Raman spectroscopy), other techniques, which have made a significant breakthrough in recent years, are discussed (terahertz pulsed imaging (TPI), chord length distribution (CLD) analysis, and image analysis). Last part of the review is dedicated to novel techniques with high potential to become valuable PAT tools in the future (optical coherence tomography (OCT), acoustic emission (AE), microwave resonance (MR), and laser induced breakdown spectroscopy (LIBS)). PMID- 29020607 TI - Epigenetic regulation of motivated behaviors by histone deacetylase inhibitors. AB - Growing evidence has begun to elucidate the contribution of epigenetic mechanisms in the modulation and maintenance of gene expression and behavior. Histone acetylation is one such epigenetic mechanism, which has been shown to profoundly alter gene expression and behaviors. In this review, we begin with an overview of the major epigenetic mechanisms including histones acetylation. We next focus on recent evidence about the influence of environmental stimuli on various motivated behaviors through histone acetylation and highlight how histone deacetylase inhibitors can correct some of the pathologies linked to motivated behaviors including substance abuse, feeding and social attachments. Particularly, we emphasize that the effects of histone deacetylase inhibitors on motivated behaviors are time and context-dependent. PMID- 29020610 TI - Neonatal C57BL/6J and parkin mice respond differently following developmental manganese exposure: Result of a high dose pilot study. AB - It has been suggested that childhood exposure to neurotoxicants may increase the risk of Parkinson's disease (PD) or other neurodegenerative disease in adults. Some recessive forms of PD have been linked to loss-of-function mutations in the Park2 gene that encodes for parkin. The purpose of this pilot study was to evaluate whether responses to neonatal manganese (Mn) exposure differ in mice with a Park2 gene defect (parkin mice) when compared with a wildtype strain (C57BL/6J). Neonatal parkin and C57BL/6J littermates were randomly assigned to 0, 11, or 25mg Mn/kg-day dose groups with oral exposures occurring from postnatal day (PND) 1 through PND 28. Motor activity was measured on PND 19-22 and 29-32. Tissue Mn concentrations were measured in liver, femur, olfactory bulb, frontal cortex, and striatum on PND 29. Hepatic and frontal cortex gene expression of Slc11a2, Slc40a1, Slc30a10, Hamp (liver only), and Park2 were also measured on PND 29. Some strain differences were seen. As expected, decreased hepatic and frontal cortex Park2 expression was seen in the parkin mice when compared with C57BL/6J mice. Untreated parkin mice also had higher liver and femur Mn concentrations when compared with the C57BL/6J mice. Exposure to>=11mg Mn/kg-day was associated with increased brain Mn concentrations in all mice, no strain difference was observed. Manganese exposure in C57Bl6, but not parkin mice, was associated with a negative correlation between striatal Mn concentration and motor activity. Manganese exposure was not associated with changes in frontal cortex gene expression. Decreased hepatic Slc30a10, Slc40a1, and Hamp expression were seen in PND 29 C57BL/6J mice given 25mg Mn/kg-day. In contrast, Mn exposure was only associated with decreased Hamp expression in the parkin mice. Our results suggest that the Parkin gene defect did not increase the susceptibility of neonatal mice to adverse health effects associated with high-dose Mn exposure. PMID- 29020612 TI - Covering the Stem Cell Explosion at the 2017 ISSCR Conference in Boston. AB - The meeting covered a plethora of rapidly evolving approaches and areas, such as organoid cultures modeling tissues and organs; stem cell-specific metabolites revealing new signaling pathways; single-cell technologies discovering new cell types and exploring stem cell niche interactions; novel methods studying stem cells in aging and cancer; lineage-tracing experiments exploring cell plasticity of tissues before and after injury; epigenetic studies illuminating cell reprogramming; new protocols improving cells for regenerative purposes; and several other timely and exciting topics. PMID- 29020611 TI - Tubulin-dependent secretion of S100A6 and cellular signaling pathways activated by S100A6-integrin beta1 interaction. AB - S100A6 is a calcium binding protein expressed mainly in fibroblasts and epithelial cells. Interestingly, S100A6 is also present in extracellular fluids. Recently we have shown that S100A6 is secreted by WJMS cells and binds to integrin beta1 (Jurewicz et al., 2014). In this work we describe for the first time the mechanism of S100A6 secretion and signaling pathways activated by the S100A6-integrin beta1 complex. We show that colchicine suppressed the release of S100A6 into the cell medium, which indicates that the protein might be secreted via a tubulin-dependent pathway. By applying double immunogold labeling and immunofluorescence staining we have shown that S100A6 associates with microtubules in WJMS cells. Furthermore, results obtained from immunoprecipitation and proximity ligation assay (PLA), and from in vitro assays, reveal that S100A6 is able to form complexes with alpha and beta tubulin in these cells, and that the S100A6-tubulin interaction is direct. We have also found that the S100A6 protein, due to binding to integrin beta1, activates integrin-linked kinase (ILK), focal adhesion kinase (FAK) and p21-activated kinase (PAK). Our results suggest that binding of S100A6 to integrin beta1 affects cell adhesion/proliferation due to activation of ILK and FAK signaling pathways. PMID- 29020613 TI - RNA Exosome Complex-Mediated Control of Redox Status in Pluripotent Stem Cells. AB - The RNA exosome complex targets AU-rich element (ARE)-containing mRNAs in eukaryotic cells. We identified a transcription factor, ZSCAN10, which binds to the promoters of multiple RNA exosome complex subunits in pluripotent stem cells to maintain subunit gene expression. We discovered that induced pluripotent stem cell clones generated from aged tissue donors (A-iPSC) show poor expression of ZSCAN10, leading to poor RNA exosome complex expression, and a subsequent elevation in ARE-containing RNAs, including glutathione peroxidase 2 (Gpx2). Excess GPX2 leads to excess glutathione-mediated reactive oxygen species scavenging activity that blunts the DNA damage response and apoptosis. Expression of ZSCAN10 in A-iPSC recovers RNA exosome gene expression, the DNA damage response, and apoptosis. These findings reveal the central role of ZSCAN10 and the RNA exosome complex in maintaining pluripotent stem cell redox status to support a normal DNA damage response. PMID- 29020616 TI - The emerging role of follistatin under stresses and its implications in diseases. AB - Follistatin (FST), a single-chain glycosylated protein, is expressed in various tissues. The essential biological function of FST is binding and neutralizing transforming growth factor beta (TGF-beta) superfamily, including activin, myostatin, and bone morphogenetic protein (BMP). Emerging evidence indicates that FST also serves as a stress responsive protein, which plays a protective role under a variety of stresses. In most cases, FST performs the protective function through its neutralization of TGF-beta superfamily. However, under certain circumstances, FST translocates into the nucleus to maintain cellular homeostasis independent of its extracellular antagonism activity. This review provides integrated insight into the most recent advances in understanding the role of FST under various stresses, and the clinical implications corresponding to these findings and discusses the mechanisms to be further studied. PMID- 29020615 TI - A Scaled Framework for CRISPR Editing of Human Pluripotent Stem Cells to Study Psychiatric Disease. AB - Scaling of CRISPR-Cas9 technology in human pluripotent stem cells (hPSCs) represents an important step for modeling complex disease and developing drug screens in human cells. However, variables affecting the scaling efficiency of gene editing in hPSCs remain poorly understood. Here, we report a standardized CRISPR-Cas9 approach, with robust benchmarking at each step, to successfully target and genotype a set of psychiatric disease-implicated genes in hPSCs and provide a resource of edited hPSC lines for six of these genes. We found that transcriptional state and nucleosome positioning around targeted loci was not correlated with editing efficiency. However, editing frequencies varied between different hPSC lines and correlated with genomic stability, underscoring the need for careful cell line selection and unbiased assessments of genomic integrity. Together, our step-by-step quantification and in-depth analyses provide an experimental roadmap for scaling Cas9-mediated editing in hPSCs to study psychiatric disease, with broader applicability for other polygenic diseases. PMID- 29020614 TI - Gene Editing in Rat Embryonic Stem Cells to Produce In Vitro Models and In Vivo Reporters. AB - Rat embryonic stem cells (ESCs) offer the potential for sophisticated genome engineering in this valuable biomedical model species. However, germline transmission has been rare following conventional homologous recombination and clonal selection. Here, we used the CRISPR/Cas9 system to target genomic mutations and insertions. We first evaluated utility for directed mutagenesis and recovered clones with biallelic deletions in Lef1. Mutant cells exhibited reduced sensitivity to glycogen synthase kinase 3 inhibition during self-renewal. We then generated a non-disruptive knockin of dsRed at the Sox10 locus. Two clones produced germline chimeras. Comparative expression of dsRed and SOX10 validated the fidelity of the reporter. To illustrate utility, live imaging of dsRed in neonatal brain slices was employed to visualize oligodendrocyte lineage cells for patch-clamp recording. Overall, these results show that CRISPR/Cas9 gene editing technology in germline-competent rat ESCs is enabling for in vitro studies and for generating genetically modified rats. PMID- 29020617 TI - Live Imaging Reveals that the First Division of Differentiating Human Embryonic Stem Cells Often Yields Asymmetric Fates. AB - How do stem cells respond to signals to initiate differentiation? Here, we show that, despite uniform exposure to differentiation-inducing extracellular signals, individual human embryonic stem cells (hESCs) respond heterogeneously. To track how hESCs incipiently exit pluripotency, we established a system to differentiate hESCs as single cells and conducted live imaging to track their very first cell division. We followed the fate of their earliest daughters as they remained undifferentiated or differentiated toward the primitive streak (the earliest descendants of pluripotent cells). About 30%-50% of the time, hESCs divided to yield one primitive streak and one undifferentiated daughter. The undifferentiated daughter cell was innately resistant to WNT signaling and could not respond to this primitive-streak-specifying differentiation signal. Hence, the first division of differentiating hESCs sometimes yields daughters with diverging fates, with implications for the efficiency of directed differentiation protocols and the underlying rules of lineage commitment. PMID- 29020618 TI - Hotspots of De Novo Point Mutations in Induced Pluripotent Stem Cells. AB - Induced pluripotent stem cells (iPSCs) are generated by direct reprogramming of somatic cells and hold great promise for novel therapies. However, several studies have reported genetic variations in iPSC genomes. Here, we investigated point mutations identified by whole-genome sequencing in mouse and human iPSCs in the context of epigenetic status. In contrast to disease-causing single nucleotide polymorphisms, de novo point mutations introduced during reprogramming were underrepresented in protein-coding genes and in open chromatin regions, including transcription factor binding sites. Instead, these mutations occurred preferentially in structurally condensed lamina-associated heterochromatic domains, suggesting that chromatin organization is a factor that can bias the regional mutation rate in iPSC genomes. Mutation signature analysis implicated oxidative stress associated with reprogramming as a likely cause of point mutations. Altogether, our study provides deeper understanding of the mutational landscape of iPSC genomes, paving an important way toward the translation of iPSC based cell therapy. PMID- 29020619 TI - Remarkable Stability of Myelinating Oligodendrocytes in Mice. AB - New myelin-forming oligodendrocytes (OLs) are generated in the mouse central nervous system during adulthood. These adult-born OLs might augment the existing population, contributing to neural plasticity, or else replace OLs that die in use (turnover). To distinguish between these alternatives, we induced genetic labeling of mature myelinating OLs in young adult mice and tracked their subsequent survival. OL survival rates were region dependent, being higher in corpus callosum (~90% survival over 20 months) and motor cortex (~70% survival) than in corticospinal tract or optic nerve (50%-60% survival). Survival rates over the first 8 months were 90%-100% in all regions except the optic nerve. In the corpus callosum, new OLs accumulate during young adulthood and are therefore likely to participate in adaptive myelination. We also found that the number of myelin internodes maintained by individual cortical OLs is stable for at least 8 months but declines ~12% in the following year. PMID- 29020621 TI - Fanconi-Anemia-Associated Mutations Destabilize RAD51 Filaments and Impair Replication Fork Protection. AB - Fanconi anemia (FA) is a genetic disorder characterized by a defect in DNA interstrand crosslink (ICL) repair, chromosomal instability, and a predisposition to cancer. Recently, two RAD51 mutations were reported to cause an FA-like phenotype. Despite the tight association of FA/HR proteins with replication fork (RF) stabilization during normal replication, it remains unknown how FA associated RAD51 mutations affect replication beyond ICL lesions. Here, we report that these mutations fail to protect nascent DNA from MRE11-mediated degradation during RF stalling in Xenopus laevis egg extracts. Reconstitution of DNA protection in vitro revealed that the defect arises directly due to altered RAD51 properties. Both mutations induce pronounced structural changes and RAD51 filament destabilization that is not rescued by prevention of ATP hydrolysis due to aberrant ATP binding. Our results further interconnect the FA pathway with DNA replication and provide mechanistic insight into the role of RAD51 in recombination-independent mechanisms of genome maintenance. PMID- 29020620 TI - Enhancement of BLM-DNA2-Mediated Long-Range DNA End Resection by CtIP. AB - DNA double-strand break repair by homologous recombination entails the resection of DNA ends to reveal ssDNA tails, which are used to invade a homologous DNA template. CtIP and its yeast ortholog Sae2 regulate the nuclease activity of MRE11 in the initial stage of resection. Deletion of CtIP in the mouse or SAE2 in yeast engenders a more severe phenotype than MRE11 nuclease inactivation, indicative of a broader role of CtIP/Sae2. Here, we provide biochemical evidence that CtIP promotes long-range resection via the BLM-DNA2 pathway. Specifically, CtIP interacts with BLM and enhances its helicase activity, and it enhances DNA cleavage by DNA2. Thus, CtIP influences multiple aspects of end resection beyond MRE11 regulation. PMID- 29020622 TI - Homeostatic Presynaptic Plasticity Is Specifically Regulated by P/Q-type Ca2+ Channels at Mammalian Hippocampal Synapses. AB - Voltage-dependent Ca2+ channels (VGCC) represent the principal source of Ca2+ ions driving evoked neurotransmitter release at presynaptic boutons. In mammals, presynaptic Ca2+ influx is mediated mainly via P/Q-type and N-type VGCC, which differ in their properties. Changes in their relative contributions tune neurotransmission both during development and in Hebbian plasticity. However, whether this represents a functional motif also present in other forms of activity-dependent regulation is unknown. Here, we study the role of VGCC in homeostatic plasticity (HSP) in mammalian hippocampal neurons using optical techniques. We find that changes in evoked Ca2+ currents specifically through P/Q type, but not N-type, VGCC mediate bidirectional homeostatic regulation of both neurotransmitter release efficacy and the size of the major synaptic vesicle pools. Selective dependence of HSP on P/Q-type VGCC in mammalian terminals has important implications for phenotypes associated with P/Q-type channelopathies, including migraine and epilepsy. PMID- 29020623 TI - Functional Plasticity of Odor Representations during Motherhood. AB - Motherhood is accompanied by new behaviors aimed at ensuring the wellbeing of the offspring. Olfaction plays a key role in guiding maternal behaviors during this transition. We studied functional changes in the main olfactory bulb (OB) of mothers in mice. Using in vivo two-photon calcium imaging, we studied the sensory representation of odors by mitral cells (MCs). We show that MC responses to monomolecular odors become sparser and weaker in mothers. In contrast, responses to biologically relevant odors are spared from sparsening or strengthen. MC responses to mixtures and to a range of concentrations suggest that these differences between odor responses cannot be accounted for by mixture suppressive effects or gain control mechanisms. In vitro whole-cell recordings show an increase in inhibitory synaptic drive onto MCs. The increase of inhibitory tone may contribute to the general decrease in responsiveness and concomitant enhanced representation of specific odors. PMID- 29020624 TI - Temporal Tracking of Microglia Activation in Neurodegeneration at Single-Cell Resolution. AB - Microglia, the tissue-resident macrophages in the brain, are damage sensors that react to nearly any perturbation, including neurodegenerative diseases such as Alzheimer's disease (AD). Here, using single-cell RNA sequencing, we determined the transcriptome of more than 1,600 individual microglia cells isolated from the hippocampus of a mouse model of severe neurodegeneration with AD-like phenotypes and of control mice at multiple time points during progression of neurodegeneration. In this neurodegeneration model, we discovered two molecularly distinct reactive microglia phenotypes that are typified by modules of co regulated type I and type II interferon response genes, respectively. Furthermore, our work identified previously unobserved heterogeneity in the response of microglia to neurodegeneration, discovered disease stage-specific microglia cell states, revealed the trajectory of cellular reprogramming of microglia in response to neurodegeneration, and uncovered the underlying transcriptional programs. PMID- 29020625 TI - Overproduction of Neurons Is Correlated with Enhanced Cortical Ensembles and Increased Perceptual Discrimination. AB - Brains vary greatly in neuronal number and density, even across individuals within the same species, yet it remains unclear whether such variation leads to differences in brain function or behavior. By imaging cortical activity of a mouse model in which neuronal production is moderately enhanced in utero, we find that animals with more cortical neurons also develop enhanced functional correlations and more distinct neuronal ensembles in primary visual cortex. These mice also have sharper orientation discrimination in their visual behavior. These results unveil a correlation between neuronal ensembles and behavior and suggest that neuronal number is linked to functional modularity and perceptual discrimination of visual cortex. By experimentally linking differences in neuronal number and behavior, our findings could help explain how evolutionary and developmental variability of individual and species brain size may lead to perceptual and cognitive differences. PMID- 29020626 TI - Uncoupling of Metabolic Health from Longevity through Genetic Alteration of Adipose Tissue Lipid-Binding Proteins. AB - Deterioration of metabolic health is a hallmark of aging and generally assumed to be detrimental to longevity. Exposure to a high-calorie diet impairs metabolism and accelerates aging; conversely, calorie restriction (CR) prevents age-related metabolic diseases and extends lifespan. However, it is unclear whether preservation of metabolic health is sufficient to extend lifespan. We utilized a genetic mouse model lacking Fabp4/5 that confers protection against metabolic diseases and shares molecular and lipidomic features with CR to address this question. Fabp-deficient mice exhibit extended metabolic healthspan, with protection against insulin resistance and glucose intolerance, inflammation, deterioration of adipose tissue integrity, and fatty liver disease. Surprisingly, however, Fabp-deficient mice did not exhibit any extension of lifespan. These data indicate that extension of metabolic healthspan in the absence of CR can be uncoupled from lifespan, indicating the potential for independent drivers of these pathways, at least in laboratory mice. PMID- 29020627 TI - A Specific ChREBP and PPARalpha Cross-Talk Is Required for the Glucose-Mediated FGF21 Response. AB - While the physiological benefits of the fibroblast growth factor 21 (FGF21) hepatokine are documented in response to fasting, little information is available on Fgf21 regulation in a glucose-overload context. We report that peroxisome proliferator-activated receptor alpha (PPARalpha), a nuclear receptor of the fasting response, is required with the carbohydrate-sensitive transcription factor carbohydrate-responsive element-binding protein (ChREBP) to balance FGF21 glucose response. Microarray analysis indicated that only a few hepatic genes respond to fasting and glucose similarly to Fgf21. Glucose-challenged Chrebp-/- mice exhibit a marked reduction in FGF21 production, a decrease that was rescued by re-expression of an active ChREBP isoform in the liver of Chrebp-/- mice. Unexpectedly, carbohydrate challenge of hepatic Pparalpha knockout mice also demonstrated a PPARalpha-dependent glucose response for Fgf21 that was associated with an increased sucrose preference. This blunted response was due to decreased Fgf21 promoter accessibility and diminished ChREBP binding onto Fgf21 carbohydrate-responsive element (ChoRE) in hepatocytes lacking PPARalpha. Our study reports that PPARalpha is required for the ChREBP-induced glucose response of FGF21. PMID- 29020628 TI - Molecular Mechanism by which Prominent Human Gut Bacteroidetes Utilize Mixed Linkage Beta-Glucans, Major Health-Promoting Cereal Polysaccharides. AB - Microbial utilization of complex polysaccharides is a major driving force in shaping the composition of the human gut microbiota. There is a growing appreciation that finely tuned polysaccharide utilization loci enable ubiquitous gut Bacteroidetes to thrive on the plethora of complex polysaccharides that constitute "dietary fiber." Mixed-linkage beta(1,3)/beta(1,4)-glucans (MLGs) are a key family of plant cell wall polysaccharides with recognized health benefits but whose mechanism of utilization has remained unclear. Here, we provide molecular insight into the function of an archetypal MLG utilization locus (MLGUL) through a combination of biochemistry, enzymology, structural biology, and microbiology. Comparative genomics coupled with growth studies demonstrated further that syntenic MLGULs serve as genetic markers for MLG catabolism across commensal gut bacteria. In turn, we surveyed human gut metagenomes to reveal that MLGULs are ubiquitous in human populations globally, which underscores the importance of gut microbial metabolism of MLG as a common cereal polysaccharide. PMID- 29020629 TI - Differential Regulation of Lipoprotein and Hepatitis C Virus Secretion by Rab1b. AB - Secretory cells produce diverse cargoes, yet how they regulate concomitant secretory traffic remains insufficiently explored. Rab GTPases control intracellular vesicular transport. To map secretion pathways, we generated a library of lentivirus-expressed dominant-negative Rab mutants and used it in a large-scale screen to identify regulators of hepatic lipoprotein secretion. We identified several candidate pathways, including those mediated by Rab11 and Rab8. Surprisingly, inhibition of Rab1b, the major regulator of transport from the endoplasmic reticulum to the Golgi, differently affected the secretion of the very-low-density lipoprotein components ApoE and ApoB100, despite their final association on mature secreted lipoprotein particles. Since hepatitis C virus (HCV) incorporates ApoE and ApoB100 into its virus particle, we also investigated infectious HCV secretion and show that its regulation by Rab1b mirrors that of ApoB100. These observations reveal differential regulation of hepatocyte secretion by Rab1b and advance our understanding of lipoprotein assembly and lipoprotein and HCV secretion. PMID- 29020633 TI - Erasure of Tet-Oxidized 5-Methylcytosine by a SRAP Nuclease. AB - Enzymatic oxidation of 5-methylcytosine (5mC) in DNA by the Tet dioxygenases reprograms genome function in embryogenesis and postnatal development. Tet oxidized derivatives of 5mC such as 5-hydroxymethylcytosine (5hmC) act as transient intermediates in DNA demethylation or persist as durable marks, yet how these alternative fates are specified at individual CpGs is not understood. Here, we report that the SOS response-associated peptidase (SRAP) domain protein Srap1, the mammalian ortholog of an ancient protein superfamily associated with DNA damage response operons in bacteria, binds to Tet-oxidized forms of 5mC in DNA and catalyzes turnover of these bases to unmodified cytosine by an autopeptidase coupled nuclease. Biallelic inactivation of murine Srap1 causes embryonic sublethality associated with widespread accumulation of ectopic 5hmC. These findings establish a function for a class of DNA base modification-selective nucleases and position Srap1 as a determinant of 5mC demethylation trajectories during mammalian embryonic development. PMID- 29020630 TI - Degradation of Bcl-2 by XIAP and ARTS Promotes Apoptosis. AB - We describe a mechanism by which the anti-apoptotic B cell lymphoma 2 (Bcl-2) protein is downregulated to induce apoptosis. ARTS (Sept4_i2) is a tumor suppressor protein that promotes cell death through specifically antagonizing XIAP (X-linked inhibitor of apoptosis). ARTS and Bcl-2 reside at the outer mitochondrial membrane in living cells. Upon apoptotic induction, ARTS brings XIAP and Bcl-2 into a ternary complex, allowing XIAP to promote ubiquitylation and degradation of Bcl-2. ARTS binding to Bcl-2 involves the BH3 domain of Bcl-2. Lysine 17 in Bcl-2 serves as the main acceptor for ubiquitylation, and a Bcl-2 K17A mutant has increased stability and is more potent in protection against apoptosis. Bcl-2 ubiquitylation is reduced in both XIAP- and Sept4/ARTS-deficient MEFs, demonstrating that XIAP serves as an E3 ligase for Bcl-2 and that ARTS is essential for this process. Collectively, these results suggest a distinct model for the regulation of Bcl-2 by ARTS-mediated degradation. PMID- 29020631 TI - Covalent Modifications of Histone H3K9 Promote Binding of CHD3. AB - Chromatin remodeling is required for genome function and is facilitated by ATP dependent complexes, such as nucleosome remodeling and deacetylase (NuRD). Among its core components is the chromodomain helicase DNA binding protein 3 (CHD3) whose functional significance is not well established. Here, we show that CHD3 co localizes with the other NuRD subunits, including HDAC1, near the H3K9ac-enriched promoters of the NuRD target genes. The tandem PHD fingers of CHD3 bind histone H3 tails and posttranslational modifications that increase hydrophobicity of H3K9 methylation or acetylation (H3K9me3 or H3K9ac)-enhance this interaction. Binding of CHD3 PHDs promotes H3K9Cme3-nucleosome unwrapping in vitro and perturbs the pericentric heterochromatin structure in vivo. Methylation or acetylation of H3K9 uniquely alleviates the intra-nucleosomal interaction of histone H3 tails, increasing H3K9 accessibility. Collectively, our data suggest that the targeting of covalently modified H3K9 by CHD3 might be essential in diverse functions of NuRD. PMID- 29020632 TI - Activation of the p53 Transcriptional Program Sensitizes Cancer Cells to Cdk7 Inhibitors. AB - Cdk7, the CDK-activating kinase and transcription factor IIH component, is a target of inhibitors that kill cancer cells by exploiting tumor-specific transcriptional dependencies. However, whereas selective inhibition of analog sensitive (AS) Cdk7 in colon cancer-derived cells arrests division and disrupts transcription, it does not by itself trigger apoptosis efficiently. Here, we show that p53 activation by 5-fluorouracil or nutlin-3 synergizes with a reversible Cdk7as inhibitor to induce cell death. Synthetic lethality was recapitulated with covalent inhibitors of wild-type Cdk7, THZ1, or the more selective YKL-1-116. The effects were allele specific; a CDK7as mutation conferred both sensitivity to bulky adenine analogs and resistance to covalent inhibitors. Non-transformed colon epithelial cells were resistant to these combinations, as were cancer derived cells with p53-inactivating mutations. Apoptosis was dependent on death receptor DR5, a p53 transcriptional target whose expression was refractory to Cdk7 inhibition. Therefore, p53 activation induces transcriptional dependency to sensitize cancer cells to Cdk7 inhibition. PMID- 29020635 TI - Human Organ Chip Models Recapitulate Orthotopic Lung Cancer Growth, Therapeutic Responses, and Tumor Dormancy In Vitro. AB - Here, we show that microfluidic organ-on-a-chip (organ chip) cell culture technology can be used to create in vitro human orthotopic models of non-small cell lung cancer (NSCLC) that recapitulate organ microenvironment-specific cancer growth, tumor dormancy, and responses to tyrosine kinase inhibitor (TKI) therapy observed in human patients in vivo. Use of the mechanical actuation functionalities of this technology revealed a previously unknown sensitivity of lung cancer cell growth, invasion, and TKI therapeutic responses to physical cues associated with breathing motions, which appear to be mediated by changes in signaling through epidermal growth factor receptor (EGFR) and MET protein kinase. These findings might help to explain the high level of resistance to therapy in cancer patients with minimal residual disease in regions of the lung that remain functionally aerated and mobile, in addition to providing an experimental model to study cancer persister cells and mechanisms of tumor dormancy in vitro. PMID- 29020634 TI - Brachyury-YAP Regulatory Axis Drives Stemness and Growth in Cancer. AB - Molecular factors that define stem cell identity have recently emerged as oncogenic drivers. For instance, brachyury, a key developmental transcriptional factor, is also implicated in carcinogenesis, most notably of chordoma, through mechanisms that remain elusive. Here, we show that brachyury is a crucial regulator of stemness in chordoma and in more common aggressive cancers. Furthermore, this effect of brachyury is mediated by control of synthesis and stability of Yes-associated protein (YAP), a key regulator of tissue growth and homeostasis, providing an unexpected mechanism of control of YAP expression. We further demonstrate that the brachyury-YAP regulatory pathway is associated with tumor aggressiveness. These results elucidate a mechanism of controlling both tumor stemness and aggressiveness through regulatory coupling of two developmental factors. PMID- 29020638 TI - Proteomics Reveals Global Regulation of Protein SUMOylation by ATM and ATR Kinases during Replication Stress. AB - The mechanisms that protect eukaryotic DNA during the cumbersome task of replication depend on the precise coordination of several post-translational modification (PTM)-based signaling networks. Phosphorylation is a well-known regulator of the replication stress response, and recently an essential role for SUMOs (small ubiquitin-like modifiers) has also been established. Here, we investigate the global interplay between phosphorylation and SUMOylation in response to replication stress. Using SUMO and phosphoproteomic technologies, we identify thousands of regulated modification sites. We find co-regulation of central DNA damage and replication stress responders, of which the ATR-activating factor TOPBP1 is the most highly regulated. Using pharmacological inhibition of the DNA damage response kinases ATR and ATM, we find that these factors regulate global protein SUMOylation in the protein networks that protect DNA upon replication stress and fork breakage, pointing to integration between phosphorylation and SUMOylation in the cellular systems that protect DNA integrity. PMID- 29020637 TI - Combinatorial Microenvironments Impose a Continuum of Cellular Responses to a Single Pathway-Targeted Anti-cancer Compound. AB - Tumor microenvironments are a driver of resistance to anti-cancer drugs. Dissecting cell-microenvironment interactions into tractable units of study presents a challenge. Here, we assess the impact of hundreds of tumor-inspired microenvironments, in parallel, on lapatinib responses in four cancer cell lines. Combinations of ECM and soluble factors were printed on stiffness-tunable substrata to generate a collection of controlled microenvironments in which to explore cell-based functional responses. Proliferation, HER2 protein expression and phosphorylation, and morphology were measured in single cells. Using dimension reduction and linear modeling, the effects of microenvironment constituents were identified and then validated empirically. Each of the cell lines exhibits unique microenvironment-response patterns. Fibronectin, type IV collagen, and matrix rigidity are significant regulators of lapatinib resistance in HER2-amplified breast cancer cells. Small-molecule inhibitors were identified that could attenuate microenvironment-imposed resistance. Thus, we demonstrate a strategy to identify resistance- and sensitivity-driving microenvironments to improve the efficacy of anti-cancer therapeutics. PMID- 29020636 TI - Self-Organized Cerebral Organoids with Human-Specific Features Predict Effective Drugs to Combat Zika Virus Infection. AB - The human cerebral cortex possesses distinct structural and functional features that are not found in the lower species traditionally used to model brain development and disease. Accordingly, considerable attention has been placed on the development of methods to direct pluripotent stem cells to form human brain like structures termed organoids. However, many organoid differentiation protocols are inefficient and display marked variability in their ability to recapitulate the three-dimensional architecture and course of neurogenesis in the developing human brain. Here, we describe optimized organoid culture methods that efficiently and reliably produce cortical and basal ganglia structures similar to those in the human fetal brain in vivo. Neurons within the organoids are functional and exhibit network-like activities. We further demonstrate the utility of this organoid system for modeling the teratogenic effects of Zika virus on the developing brain and identifying more susceptibility receptors and therapeutic compounds that can mitigate its destructive actions. PMID- 29020639 TI - Associations between immunological function and memory recall in healthy adults. AB - Studies in clinical and aging populations support associations between immunological function, cognition and mood, although these are not always in line with animal models. Moreover, very little is known about the relationship between immunological measures and cognition in healthy young adults. The present study tested associations between the state of immune system and memory recall in a group of relatively healthy adults. Immediate and delayed memory recall was assessed in 30 participants using the computerised cognitive battery. CD4, CD8 and CD69 subpopulations of lymphocytes, Interleukin-6 (IL-6) and cortisol were assessed with blood assays. Correlation analysis showed significant negative relationships between CD4 and the short and long delay memory measures. IL-6 showed a significant positive correlation with long-delay recall. Generalized linear models found associations between differences in all recall challenges and CD4. A multivariate generalized linear model including CD4 and IL-6 exhibited a stronger association. Results highlight the interactions between CD4 and IL-6 in relation to memory function. Further study is necessary to determine the underlying mechanisms of the associations between the state of immune system and cognitive performance. PMID- 29020640 TI - Bridging spatially segregated redox zones with a microbial electrochemical snorkel triggers biogeochemical cycles in oil-contaminated River Tyne (UK) sediments. AB - Marine sediments represent an important sink for a number of anthropogenic organic contaminants, including petroleum hydrocarbons following an accidental oil spill. Degradation of these compounds largely depends on the activity of sedimentary microbial communities linked to biogeochemical cycles, in which abundant elements such as iron and sulfur are shuttled between their oxidized and reduced forms. Here we show that introduction of a small electrically conductive graphite rod ("the electrochemical snorkel") into an oil-contaminated River Tyne (UK) sediment, so as to create an electrochemical connection between the anoxic contaminated sediment and the oxygenated overlying water, has a large impact on the rate of metabolic reactions taking place in the bulk sediment. The electrochemical snorkel accelerated sulfate reduction processes driven by organic contaminant oxidation and suppressed competitive methane-producing reactions. The application of a comprehensive suite of chemical, spectroscopic, biomolecular and thermodynamic analyses suggested that the snorkel served as a scavenger of toxic sulfide via a redox interaction with the iron cycle. Taken as a whole, the results of this work highlight a new strategy for controlling biological processes, such as bioremediation, through the manipulation of the electron flows in contaminated sediments. PMID- 29020641 TI - Assessing membrane biofouling and its gel layer of anoxic/oxic membrane bioreactor for megacity municipal wastewater treatment during plum rain season in Yangtze River Delta, China. AB - This study assessed membrane biofouling and its gel layer of anoxic/oxic membrane bioreactor (A/O-MBR) for megacity municipal wastewater treatment during plum rain season, which was continuous rainy weather, in Yangtze River Delta, China. A laboratory-scale A/O-MBR was operated to treat the municipal wastewater from Quyang wastewater treatment plant, which located at the typical megacity of Shanghai in Yangtze River Delta, from April to July accompanying with plum rain season. As reactor performance showed, CODCr, NH4+-N, TN, TP of the influent gradually decreased during plum rain season, and inhibited pollutant removal due to organic carbon shortage. However, dissolve inorganic carbon and inorganic components in mixed liquid had an obvious increase under rainy weather. Membrane filtration results indicated that plum rain season enhanced pore blocking behavior, further leading to the serious membrane biofouling but inhibiting gel layer formation. Additionally, gel layer analysis predicted that plum rain season led to plenty of inorganic components and precipitate flew into A/O-MBR reactor. Inorganic components with elements of Ca, Mg Ba, Fe, Al and Si seriously blocked membrane pores. Those components also accumulated into gel layer in the form of SiO2, CaCO3, CaSiO3, MgNH4PO4, BaCO3, AlPO4, etc. Consequently, plum rain season enhanced pore blocking behavior and led to severe membrane biofouling but with the inhibition of gel layer formation. PMID- 29020642 TI - cBiT: A transcriptomics database for innovative biomaterial engineering. AB - Creating biomaterials that are suited for clinical application is still hampered by a lack of understanding of the interaction between a cell and the biomaterial surface it grows on. This surface communication can strongly impact cellular behavior, which in turn affects the chances of a successful interaction between a material and the host tissue. Transcriptomics data have previously been linked to measurements of biomaterial properties in order to explain the biological mechanisms underlying these cell-biomaterial interactions. However, such multi assay data are highly complex and therefore require careful and unambiguous characterization and storage. Failure to do so may result in loss of valuable data or erroneous data analysis. In order to start a new initiative that tackles these issues and offers a platform for innovative biomaterial development, we have created a publically accessible repository called The Compendium for Biomaterial Transcriptomics (cBiT, https://cbit.maastrichtuniversity.nl). cBiT is a data warehouse that gives users the opportunity to search through biomaterial based transcriptomics data sets using a web interface. Data of interest can be selected and downloaded, together with associated measurements of material properties. Researchers are also invited to add their data to cBiT in order to further enhance its scientific value. We aim to make cBiT the hub for biomaterial associated data, thereby enabling major contributions to a more efficient development of new materials with improved body integration. Here, we describe the structure of cBiT and provide a use case with clinically applied materials to demonstrate how cBiT can be used to correlate data across transcriptomics studies. PMID- 29020643 TI - Association of methylmercury intake from seafood consumption and blood mercury level among the Asian and Non-Asian populations in the United States. AB - BACKGROUND: MeHg is a well-established neurotoxicant for fetal brain growth and development and has been shown to increase the risk of cardiovascular disease in aging populations. In the U.S., Asian populations are of particular concern because of their seafood consumption behaviors. OBJECTIVES: Our objective was to calculate the average daily MeHg intake (ADMI) from seafood and to assess the relationship between ADMI with blood methylmercury (BMeHg) concentrations, specifically among women of reproductive age (WORA) and adults >= 50 years of age. METHODS: We estimated ADMI from seafood using the 30-day fish consumption data from the NHANES 2011-2014 datasets. Using multivariable linear regression, we estimated the proportional change in mean BMeHg associated with a doubling of the ADMI. Further, correlations between ADMI and BMeHg were compared between Asians and other racial/ethnic groups. RESULTS: Our analysis found both Asian WORA and Asian adults age >= 50 years old had significantly higher BMeHg levels and ADMI than their Non-Asian counterparts. Correlations between ADMI from seafood and blood Hg levels were stronger among Asian WORA than among Non-Asian WORA. Key fish species that influenced the dietary MeHg intake for Asians were mackerel, tuna, and "other known/unknown fish species". CONCLUSION: We confirmed that Asian populations have higher MeHg intake than the Non-Asian population in the U.S. and seafood intake is a key predictor of blood Hg concentration, especially among Asian women of reproductive age. Future studies should incorporate information on other known and unknown fish species that are frequently consumed by Asian populations and different parts and fish organs eaten to better understand determinants of MeHg exposure. PMID- 29020644 TI - Di(2-ethylhexyl) phthalate and diethyl phthalate disrupt lipid metabolism, reduce fecundity and shortens lifespan of Caenorhabditis elegans. AB - The widespread use of phthalates is of major concern as they have adverse effects on many different physiological functions, including reproduction, metabolism and cell differentiation. The aim of this study was to compare the toxicity of the widely-used di (2-ethydlhexyl) phthalate (DEHP) with its substitute, diethyl phthalate (DEP). We analyzed the toxicity of these two phthalates using Caenorhabditis elegans as a model system. Gene expression analysis following exposure during the L1 to young adult stage showed that DEHP and DEP alter the expression of genes involved in lipid metabolism and stress response. Genes associated with lipid metabolism, including fasn-1, pod-2, fat-5, acs-6 and sbp 1, and vitellogenin were upregulated. Among the stress response genes, ced-1 wah 1, daf-21 and gst-4 were upregulated, while ctl-1, cdf-2 and the heat shock proteins (hsp-16.1, hsp-16.48 and sip-1) were downregulated. Lipid staining revealed that DEHP significantly increased lipid content following 1 MUM exposure, however, DEP required 10 MUM exposure to elicit an effect. Both DEHP and DEP reduced the fecundity at 1 MUM concentration. Lifespan analysis indicated that DEHP and DEP reduced the average lifespan from 14 days in unexposed worms to 13 and 12 days, respectively. Expression of lifespan associated genes showed a correlation to shortened lifespan in the exposed groups. As reported previously, our data also indicates that the banned DEHP is toxic to C. elegans, however its substitute DEP has not been previously tested in this model organism and our data revealed that DEP is equally potent as DEHP in regulating C. elegans physiological functions. PMID- 29020645 TI - Neural correlates of the lexicality effect in children. AB - The comparison of words and pseudowords has been extensively used in adult neuroimaging studies to inform neurocognitive models of reading but has rarely been used to inform models of reading acquisition. Using a rhyming judgment task, the current study examined age-related differences in the spelling to sound mapping mechanisms involved in word and pseudoword reading. We hypothesized a developmental increase in specialization of the brain mechanisms engaged for word and pseudoword processing. Consistent with adult studies, children in the current study demonstrated a greater activation for words as compared to pseudowords in the anterior left ventral occipito-temporal cortex (vOT). Inconsistent with adult studies, children also showed greater activation for words as compared to pseudowords in the mid-posterior left vOT, indicating a robust semantic influence on orthographic processing in young readers. Furthermore, our results did not indicate a lexicality by age interaction for 8- to 13-year-old children, suggesting that the adult-like specialization in the left vOT only appears later in development. PMID- 29020647 TI - Body image and paranoia. AB - Paranoia builds upon feelings of vulnerability. Our clinical experience indicates that negative body image, including concerns regarding weight, may be one source of feeling vulnerable and hence raise the risk of paranoia. There has been no empirical test of an association between body image and paranoia. Our aim was to provide the first test of this issue by examining in epidemiologically representative cohorts the cross-sectional associations between paranoia and a proxy measure of body image. This was an initial exploration of a potentially important but overlooked issue. Data were used from 5515 participants in the US National Comorbidity Survey-Replication (NCS-R). To validate the findings, the analyses were replicated with 10,113 participants in the US National Comorbidity Survey-Adolescents (NCS-A). Concerns about weight were associated with paranoia in the NCS-R (OR = 1.48, p = 0.006, CI = 1.123, 1.955) and NCS-A (OR = 1.67, p < 0.001, CI = 1.490, 1.873). The associations remained significant after controlling for gender and body mass index. The results show that negative body image and paranoia are associated in the general population, consistent with the idea that paranoia may build upon feelings of vulnerability arising from body image concerns. Studies are needed to examine whether there is a causal relationship. PMID- 29020648 TI - Ambient black carbon particulate matter in the coal region of Dhanbad, India. AB - Light-absorbing, atmospheric particles have gained greater attention in recent years because of their direct and indirect impacts on regional and global climate. Atmospheric black carbon (BC) aerosol is a leading climate warming agent, yet uncertainties in the global direct aerosol radiative forcing remain large. Based on a year of aerosol absorption measurements at seven wavelengths, BC concentrations were investigated in Dhanbad, the coal capital of India. Coal is routinely burned for cooking and residential heat as well as in small industries. The mean daily concentrations of ultraviolet-absorbing black carbon measured at 370nm (UVBC) and black carbon measured at 880nm (BC) were 9.8+/-5.7 and 6.5+/-3.8MUgm-3, respectively. The difference between UVBC and BC, Delta-C, is an indicator of biomass or residential coal burning and averaged 3.29+/ 4.61MUgm-3. An alternative approach uses the Angstrom Exponent (AE) to estimate the biomass/coal and traffic BC concentrations. Biomass/coal burning contributed ~87% and high temperature, fossil-fuel combustion contributed ~13% to the annual average BC concentration. The post-monsoon seasonal mean UVBC values were 10.9MUgm-3 and BC of 7.2MUgm-3. Potential source contribution function analysis showed that in the post-monsoon season, air masses came from the central and northwestern Indo-Gangetic Plains where there is extensive agricultural burning. The mean winter UVBC and BC concentrations were 15.0 and 10.1MUgm-3, respectively. These higher values were largely produced by local sources under poor dispersion conditions. The direct radiative forcing (DRF) due to UVBC and BC at the surface (SUR) and the top of the atmosphere (TOA) were calculated. The mean atmospheric heating rates due to UVBC and BC were estimated to be 1.40 degrees Kday-1 and 1.18 degrees Kday-1, respectively. This high heating rate may affect the monsoon circulation in this region. PMID- 29020650 TI - Decision making under risk and under ambiguity in depressed suicide attempters, depressed non-attempters and healthy controls. AB - BACKGROUND: A number of neuropsychological alterations have been found in patients who have attempted suicide. Most studies investigating decision making (DM) abilities in suicide attempters so far have used one single DM task and included patients with a lifetime history of suicide attempts. These studies have yielded conflicting results. METHOD: In this study, currently depressed in patients who had a recent suicide attempt (within the last six months) (n = 21), depressed in-patients without a lifetime history of suicide attempts (n = 31) and a healthy control group (n = 26) were assessed with two tasks for the assessment of DM. The Game of Dice Task (GDT) measures DM under risk and the Iowa Gambling Task (IGT) DM under ambiguity. Further, depression severity, impulsiveness and suicidal intent of the current suicide attempt were assessed. RESULTS: Both depressed groups differed from controls with respect to marital and partnership status, smoking, impulsiveness and psychiatric family history. In terms of DM, IGT scores did not differ significantly between groups. However, suicide attempters made significantly more risky decisions as assessed with the GDT than both control groups (p < 0.05 for pairwise comparisons, p = 0.065 for overall comparison of the 3 groups). LIMITATIONS: The available tasks assess DM under laboratory conditions which may not reflect the emotional status of suicidal individuals. No general cognitive assessment was included. CONCLUSIONS: Depressed suicide attempters differed with regard to DM under risk but not DM under ambiguity. When studying DM it appears crucial to take varying aspects of DM into account. PMID- 29020649 TI - Neuroendocrine stress reactivity of male C57BL/6N mice following chronic oral corticosterone exposure during adulthood or adolescence. AB - Adolescence is associated with the maturation of the hypothalamic-pituitary adrenal (HPA) axis, the major neuroendocrine axis mediating the hormonal stress response. Adolescence is also a period in development marked by a variety of stress-related vulnerabilities, including psychological and physiological dysfunctions. Many of these vulnerabilities are accompanied by a disrupted HPA axis. In adult mice, a model of disrupted HPA function has been developed using oral chronic corticosterone administration via the drinking water, which results in various physiological and neurobehavioral abnormalities, including changes in stress reactivity and anxiety-like behaviors. In an effort to further complement and extend this model, we tested the impact of HPA disruption in adolescent mice. We also examined whether this disruption led to different outcomes depending on whether the treatment happened during adolescence or adulthood. In the current set of experiments, we exposed adult (70days of age) or adolescent (30days of age) male C57BL/6N mice to 4 weeks of either 0 or 25MUg/ml oral corticosterone via their drinking water. We measured body weight during treatment and plasma corticosterone levels and activation of the paraventricular nucleus (PVN), as indexed by FOS immunohistochemistry, before and after a 30min session of restraint stress. Our data indicate that adolescent animals exposed to chronic corticosterone showed weight loss during treatment, an effect not observed in adults. Further, we found stress failed to elevate plasma corticosterone levels in treated mice, regardless of whether exposure occurred in adulthood or adolescence. Despite this reduced hormonal responsiveness, we found significant neural activation in the PVN of both adult- and adolescent-treated mice, indicating a dissociation between stress-induced peripheral and central stress responses following chronic corticosterone exposure. Moreover, stress-induced neural activation in the PVN was unaffected by chronic corticosterone treatment in adult animals, but led to a hyper-responsive PVN in the corticosterone-treated adolescent animals, suggesting an age-specific effect of corticosterone treatment on later PVN stress reactivity. Together, these experiments highlight the influence of developmental stage on somatic and neuroendocrine outcomes following chronic HPA disruption by noninvasive, oral corticosterone treatment. Given the substantial vulnerabilities to HPA dysfunctions during adolescence this model may prove useful in better understanding these vulnerabilities. PMID- 29020646 TI - HIV-1 subtype CRF01_AE and B differ in utilization of low levels of CCR5, Maraviroc susceptibility and potential N-glycosylation sites. AB - HIV subtypes not only predominate in different geographical regions but also differ in key phenotypic characteristics. To determine if genotypic and/or phenotypic differences in the Envelope (Env) glycoprotein can explain subtype related differences, we cloned 37 full length Envs from Subtype B and AE HIV infected individuals from Singapore. Our data demonstrates that CRF01_AE Envs have lower Potential N Glycosylation Sites and higher risk of *4 development. Phenotypically, CRF01_AE were less infectious than subtype B Envs in cells expressing low levels of CCR5. Moreover, the Maraviroc IC50 was higher for subtype B Envs and correlated with infectivity in low CCR5 expressing cells as well as PNGS. Specifically, the glycosylation site N301 in the V3 loop was seen less frequently in AE subtype and CXCR4 topic viruses. CRF01_AE differs from B subtype in terms of CCR5 usage and Maraviroc susceptibility which may have implications for HIV pathogenesis and virus evolution. PMID- 29020651 TI - Is negative self-referent bias an endophenotype for depression? An fMRI study of emotional self-referent words in twins at high vs. low risk of depression. AB - BACKGROUND: Negative cognitive bias and aberrant neural processing of self referent emotional words seem to be trait-marks of depression. However, it is unclear whether these neurocognitive changes are present in unaffected first degree relatives and constitute an illness endophenotype. METHODS: Fifty-three healthy, never-depressed monozygotic or dizygotic twins with a co-twin history of depression (high-risk group: n = 26) or no first-degree family history of depression (low-risk group: n = 27) underwent neurocognitive testing and functional magnetic imaging (fMRI) as part of a follow-up cohort study. Participants performed a self-referent emotional word categorisation task and free word recall task followed by a recognition task during fMRI. Participants also completed questionnaires assessing mood, personality traits and coping strategies. RESULTS: High-risk and low-risk twins (age, mean +/- SD: 40 +/- 11) were well-balanced for demographic variables, mood, coping and neuroticism. High risk twins showed lower accuracy during self-referent categorisation of emotional words independent of valence and more false recollections of negative words than low-risk twins during free recall. Functional MRI yielded no differences between high-risk and low-risk twins in retrieval-specific neural activity for positive or negative words or during the recognition of negative versus positive words within the hippocampus or prefrontal cortex. CONCLUSIONS: The subtle display of negative recall bias is consistent with the hypothesis that self-referent negative memory bias is an endophenotype for depression. High-risk twins' lower categorisation accuracy adds to the evidence for valence-independent cognitive deficits in individuals at familial risk for depression. PMID- 29020652 TI - Negatively charged food additive dye "Allura Red" rapidly induces SDS-soluble amyloid fibril in beta-lactoglobulin protein. AB - Recent studies have led to an increased interest to categorize small molecular inhibitors of protein fibrillation. In this study, we used spectroscopy, microscopy and gel electrophoresis techniques that provides an elaborated description of the Allura Red-induced amyloid fibrillation in the beta-LG protein at two pHs (7.4 and 3.5). The spectroscopy results show that beta-LG protein form aggregates in the presence of Allura Red (0.04-15.0mM) at pH 3.5 due to electrostatic and hydrophobic interactions. However, at pH 7.4, the beta-LG does not interact electrostatically with Allura Red and therefore no aggregation occurred. The Allura Red-induced aggregates have an amyloid-like structure that was confirmed by far-UV CD, Congo Red and transmission electron microscopy (TEM). The CD spectrum of beta-LG contains single minima at ~218nm, which shifts towards higher wavelength minima at ~225nm in the presence of Allura Red, characteristics of the cross beta-sheet structure. The TEM results suggest that beta-LG form long straight fibril when exposed to Allura Red at pH 3.5. The Allura Red-induced amyloid fibril is SDS-soluble confirmed by SDS-PAGE techniques. A far UV CD result shows the conversion of Allura Red induced cross beta-sheet structure into alpha-helical structure in the presence of increasing concentration of SDS. The results of this study suggest that the electrostatic, as well as hydrophobic interactions play an important role during Allura Red-induced beta-LG fibrillation. PMID- 29020653 TI - Preparation of cashew gum-based flocculants by microwave- and ultrasound-assisted methods. AB - In this work, copolymers based on cashew gum (CG) grafted with polyacrylamide (PAM) were synthesized by microwave- and ultrasound-assisted methods, using potassium persulfate as an initiator in aqueous medium. The graft copolymers were characterized by Fourier-transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, and thermogravimetric analysis. The efficiency of the graft copolymers (CG-g-PAM) in flocculation of a kaolin suspension was studied. Results indicated that the graft copolymers synthesized by ultrasound energy had better flocculation properties than the ones synthesized by the microwave assisted method. The biodegradability of the graft copolymers was tested by inoculation with the basidiomycete Trametes villosa in liquid medium. The higher formation of biomass than that observed with the commercial flocculant Flonex 9045 indicated that the graft copolymer was accessible to enzymatic attack. PMID- 29020654 TI - Liranaftate loaded Xanthan gum based hydrogel for topical delivery: Physical properties and ex-vivo permeability. AB - A topical microemulsion (ME)-based hydrogel was developed to enhance permeation of an antifungal drug, liranaftate (LRFE) for effective eradication of cutaneous fungal infection. Pseudo-ternary phase diagrams were used to determine the existence of MEs region. ME formulations were prepared with Di-isopropyl adaptate, Cremophore-EL, Ethanol and distilled water. Xanthan Gum (1.5% w/w) was used for preparation of hydrogel of LRFE microemulsion (HLM) and characterized. The in-vitro and ex-vivo evaluation of prepared HLM and saturated drug solution were compared. The viscosity, average droplet size and pH of HLM were 142.30+/ 0.42 to 165.15+/-0.21Pas, 52.53-93.40nm and 6.6-7.1, respectively. Permeation rate of LRFE from optimized formulation (HLM-3), composed with Di-isopropyl adaptate (4.5% w/w), Cremophor-EL (30% w/w), Ethanol (10% w/w) and water (52% w/w) was observed higher in compare with other HLMs and saturated drug solution. HLM-3 was stable, six times higher drug deposition capacity in skin than saturated drug solution and did not caused any erythema based on skin sensitivity study on rat. The average zone of inhibition of HLM-3 (25.52+/-0.26mm) was higher in compare with saturated drug solution (13.44+/-0.40mm) against Candida albicans. PMID- 29020655 TI - A framework for assessing urban greenery's effects and valuing its ecosystem services. AB - Ongoing urban exploitation is increasing pressure to transform urban green spaces, while there is increasing awareness that greenery provides a range of important benefits to city residents. In efforts to help resolve associated problems we have developed a framework for integrated assessments of ecosystem service (ES) benefits and values provided by urban greenery, based on the ecosystem service cascade model. The aim is to provide a method for assessing the contribution to, and valuing, multiple ES provided by urban greenery that can be readily applied in routine planning processes. The framework is unique as it recognizes that an urban greenery comprises several components and functions that can contribute to multiple ecosystem services in one or more ways via different functional traits (e.g. foliage characteristics) for which readily measured indicators have been identified. The framework consists of five steps including compilation of an inventory of indicator; application of effectivity factors to rate indicators' effectiveness; estimation of effects; estimation of benefits for each ES; estimation of the total ES value of the ecosystem. The framework was applied to assess ecosystem services provided by trees, shrubs, herbs, birds, and bees, in green areas spanning an urban gradient in Gothenburg, Sweden. Estimates of perceived values of ecosystem services were obtained from interviews with the public and workshop activities with civil servants. The framework is systematic and transparent at all stages and appears to have potential utility in the existing spatial planning processes. PMID- 29020656 TI - DNA binding and in vitro anticarcinogenic activity of a series of newfashioned Cu(II)-complexes based on tricationic metalloporphyrin salicyloylhydrazone ligands. AB - Four novel water-soluble Cu(II) derivatives based on the meso-10, 15, 20-Tris (N methyl-X-pyridyl)-5-(4'-salicyloylhydrazone) metalloporphyrin ligands (X=4, M=Zn(1) Co(2); X=2, M=Zn(3), Co(4)), have been prepared and isolated. Various physicochemical techniques indicate that complex 2 interacts with calf thymus DNA stronger than the others through partial intercalation, suggesting that Co(II) has no axial ligands at porphyrin core plays a crucial role, interestingly, 2 exhibits higher DNA binding affinity compared to 4, which could be ascribed to the influences of peripheral electronic effect of porphyrin ring. Cytotoxicity studies manifest all conjugates possess superior cytotoxicity towards non-small cell lung cancer (A549) and liver hepatocellular carcinoma (HepG2) but weak toxicity for human normal breast cells (Hs 578Bst) boiled down to the tumor selectivity of porphyrin. In addition, the IC50 value of 1 is lower than its analogues against HepG2 cells when cultivated 72h, thus the effects of representative complex 1 on cell morphological and cell cycle have been tailed. PMID- 29020657 TI - A novel approach for performing ultrasound-guided maxillary nerve block. PMID- 29020658 TI - Evaluation of the performance of a new automated HIV combination assay. AB - BACKGROUND: More and more countries test for HIV infection using combination assays that simultaneously detect p24 antigen and HIV antibodies. OBJECTIVE: To assess the performance of a new HIV combo assay: LIAISON(r) XL murex HIV Ab/Ag HT. STUDY DESIGN: The assays were examined with a total of 3090 samples that included 769 selected HIV antibody-negative samples, 1849 unselected HIV samples, 15 HIV-1 p24 Ag reference samples, 90 primary HIV-1 infection (PHI) samples, 167 HIV-1 antibody-positive samples (well characterized of groups M and O), 95 HIV-1 antibody-positive samples and 105 HIV-2 antibody-positive samples. RESULTS: The specificity of the LIAISON(r) XL murex HIV Ab/Ag HT was 99.7%. The analytical sensitivity of Ag p24 of the LIAISON(r) XL murex HIV Ab/Ag HT was 0.58IU/mL and 9.93pg/mL when using WHO and French national standards, respectively. All screened HIV subtypes was identified by this assay. Also, 90 PHI specimens were detected by this screening assay. CONCLUSION: The sensitivity and specificity of the LIAISON(r) XL murex HIV Ab/Ag HT assay are high. Hence the assay offers automated high-throughput screening with ability to detect primary infection. PMID- 29020659 TI - 3D gait analysis with and without an orthopedic walking boot. AB - INTRODUCTION: Orthopedic walking boots have been widely used in place of traditional fiberglass casts for a variety of orthopedic injuries and post surgical interventions. These walking boots create a leg length discrepancy (LLD). LLD has been shown to alter the kinematics and kinetics of gait and are associated with lumbar and lower limb conditions such as: foot over pronation, low back pain, scoliosis, and osteoarthritis of the hip and knee joints. Past gait analyses research with orthopedic boots is limited to findings on the ipsilateral limb. Thus, the purpose of the study was to examine bilateral gait kinematics & kinetics with and without a walking boot. METHODS: Forty healthy participants (m=20, f=20, age 20.7+/-1.8 yrs., ht. 171.6+/-9.5cm, wt. 73.2+/ 11.0kg, BMI 24.8+/-3.2) volunteered. An eight camera Vicon Motion Capture System with PIG model and two AMTI force plates were utilized to record the walking trial conditions: (1) bilateral tennis shoes (2) boot on right foot, tennis shoe on left foot (3) boot on right foot, barefoot on left foot. Data were processed in Nexus 2.2.3 and exported to Visual 3D for analysis. RESULTS: When wearing the boot, there were significant differences in most joint angles and moments, with larger effects on long limb. CONCLUSION: The walking boot alters the gait in the same way as those with existing LLD, putting them at risk for development of secondary knee, hip, and low back pain during treatment protocol. PMID- 29020660 TI - Identification of twenty-nine novel germline unclassified variants of BRCA1 and BRCA2 genes in 1400 Italian individuals. AB - OBJECTIVES: Breast and/or ovarian cancers are complex multifactorial diseases caused by interaction of both genetic and non-genetic factors and characterized by predisposition to inheritance. BRCA1 and BRCA2 genes are the most clinically involved with these kinds of cancer and the spectrum of variants affecting these genes is very wide. In fact, point variants, large or small insertions/deletions, genomic rearrangements can be found in these patients, although a large number of variants with uncertain biological and clinical significance continues to be identified. Next-generation sequencing (NGS) technology is actually the most powerful tool for the discovering of causative mutations and novel disease genes, moreover it allows to make a rapid diagnosis of genetic variants giving fast, inexpensive and detailed genetic information. MATERIAL AND METHODS: In this study, we report the screening of BRCA1 and BRCA2 genes on 1400 consecutive Caucasian patients with breast and/or ovarian cancer history or family risk, attending the oncogenetic ambulatory at the Foundation Policlinico Agostino Gemelli in Rome. RESULTS: We describe twenty-nine novel BRCA1 and BRCA2 variants detected in Italian individuals suffering from hereditary breast and ovarian cancer syndrome (HBOC). CONCLUSION: Data regarding novel variants can provide useful information not only at epidemiological but also at clinical level, allowing for the better managing of breast and ovarian cancer patients and their family members. PMID- 29020661 TI - Preparation and antibacterial activities of chitosan-gallic acid/polyvinyl alcohol blend film by LED-UV irradiation. AB - Active blend films from chitosan-gallic acid (CGA) and polyvinyl alcohol (PVA) were prepared via a simple mixing and casting method through the addition of citric acid as a plasticizer. The CGA/PVA blend films were characterized using Fourier transform infrared spectroscopy (FT-IR). The mechanical properties including tensile strength (TS) and elongation at break (%E), degree of solubility (S) and swelling behavior (DS), water vapor adsorption, and antimicrobial activities of the CGA/PVA blend films with and without LED (light emitting diode)-UV irradiation were also investigated. The CGA/PVA blend films exposed to UV irradiation exerted a higher TS (43.5MPa) and lower %E (50.40), S (0.38) and DS (2.73) compared to the CGA/PVA blend films (TS=41.7MPa, %E=55.40, S=0.42, and DS=3.16) not exposed LED-UV irradiation, indicating that the cross linkage between CGA and PVA had been strengthened by LED-UV irradiation. However, the water vapor adsorption in the CGA/PVA blend films increased due to the changes of surface roughness and pore volume after LED-UV irradiation, and all values increased by increasing the CGA concentrations in the CGA/PVA blend films. The antimicrobial activities of the CGA/PVA blend films showed that the efficient concentration of CGA in the CGA/PVA blend films was over 1.0%. Taken together, the CGA/PVA blend films have potential for use as food packing materials. PMID- 29020662 TI - Supercritical carbon dioxide decellularised pericardium: Mechanical and structural characterisation for applications in cardio-thoracic surgery. AB - INTRODUCTION: Many biomaterials are used in cardio-thoracic surgery with good short-term results. However, calcification, dehiscence, and formation of scar tissue are reported. The aim of this research is to characterise decellularised pericardium after supercritical carbon dioxide (scCO2) processing as an alternative biological material for uses in cardio-thoracic surgery. METHODS: Porcine and bovine pericardium were decellularised using scCO2. Mechanical properties such as tensile strength, elastic modulus, fracture toughness and suture retention strength were determined. Ultrastructure was visualised using Scanning Electron Microscopy. Water uptake and swelling was experimentally determined. Commercially available glutaraldehyde treated bovine pericardium was used as gold standard for comparison. RESULTS: scCO2 decellularised porcine (and bovine pericardium) maintained their tensile strength compared to untreated native pericardium (13.3 +/- 2.4MPa vs 14.0 +/- 4.1MPa, p = 0.73). Tensile strength of glutaraldehyde treated pericardium was significantly higher compared to untreated pericardium (19.4 +/- 7.3MPa vs 10.2 +/- 2.2MPa, p = 0.02). Suture retention strength of scCO2 treated pericardium was significantly higher than glutaraldehyde treated pericardium (p = 0.01). We found no anisotropy of scCO2 or glutaraldehyde treated pericardium based on a trouser tear test. Ultrastructure was uncompromised in scCO2 treated pericardium, while glutaraldehyde treated pericardium showed deterioration of extracellular matrix. CONCLUSION: scCO2 processing preserves initial mechanical and structural properties of porcine and bovine pericardium, while glutaraldehyde processing damages the extracellular matrix of bovine pericardium. Decellularisation of tissue using scCO2 might give long-term solutions for cardio-thoracic surgery without compromising initial good mechanical properties. PMID- 29020663 TI - Characterization and application of azo dye (E)-N-phenyl-4-(thiazole-2 yldiazenyl)aniline (PDA) for biomedical sterilization. AB - Sterilization is the certain and absolute decontamination of microorganisms totally from all manner of alive and active species. Sterilization devices used in the sterilization processes are between laboratory and external patient application devices of biomedical device technology, and they are designed to remove equipments from germs. The application potential of hetarilazo indole based azo dyes in the biomedical sterilization are known and azo dyes come into prominence in this class because of simplicity of their synthesis and procurement of low-cost raw materials. In this work, the application potential of a novel synthesized azo dye, (E)-N-phenyl-4-(thiazole-2-yldiazenyl)aniline was investigated as an indicator in the biomedical sterilization performing the electrochemical and spectroscopic characterizations. The application of indicator was tested by ethylene oxide, hydrogen peroxide and peracetic acid sterilization techniques introducing into various sterilization rolls. PMID- 29020664 TI - Shrinkage vectors of a flowable composite in artificial cavity models with different boundary conditions: Ceramic and Teflon. AB - Polymerization shrinkage of dental resin composites leads to stress build-up at the tooth-restoration interface that predisposes the restoration to debonding. In contrast to the heterogeneity of enamel and dentin, this study investigated the effect of boundary conditions in artificial cavity models such as ceramic and Teflon. Ceramic serves as a homogenous substrate that provides optimal bonding conditions, which we presented in the form of etched and silanized ceramic in addition to an etched, silanized and bonded ceramic cavity. In contrast, the Teflon cavity presented a non-adhesive boundary condition that provided an exaggerated condition of poor bonding as in the case of contamination during the application procedure or a poor bonding substrate such as sclerotic or deep dentin. The greatest 3D shrinkage vectors and movement in the axial direction were observed in the ceramic cavity with the bonding agent followed by the silanized ceramic cavity, and smallest shrinkage vectors and axial movements were observed in the Teflon cavity. The shrinkage vectors in the ceramic cavities exhibited downward movement toward the cavity bottom with great downward shrinkage of the free surface. The shrinkage vectors in the Teflon cavity pointed towards the center of the restoration with lateral movement greater at one side denoting the site of first detachment from the cavity walls. These results proved that the boundary conditions, in terms of bonding substrates, significantly influenced the shrinkage direction. PMID- 29020665 TI - High serum soluble CD40L levels previously to liver transplantation in patients with hepatocellular carcinoma are associated with mortality at one year. AB - PURPOSE: CD40L and its soluble form (sCD40L) are proteins of the tumor necrosis factor superfamily (TNFSF) that exhibit prothrombotic and proinflammatory properties when binding to CD40, which is a cell surface receptor of the tumor necrosis factor receptor superfamily (TNFRSF). High circulating levels of sCD40L have been associated with poor prognosis in patients with hepatocellular carcinoma (HCC). However, it is unknown whether there is an association between circulating sCD40L levels and survival in patients with HCC underwent to liver transplantation (LT), and this was the objective of that study. METHODS: Serum sCD40L levels were measured in a total of 139 patients before LT (124 survivors at 1year of LT and 15 non-survivors). The end-point study was 1year survival after liver LT. RESULTS: We found that 1-year non-surviving patients showed higher serum sCD40L levels than survivor patients (p=0.02). We found in logistic regression analysis that serum sCD40L levels higher than 321pg/mL (Odds Ratio=6.86; 95% confidence interval=2.06-22.76; p=0.002) and age of LT deceased donor were associated with death at 1year. CONCLUSIONS: The new finding of our study was that high serum sCD40L levels previously to LT in patients with HCC are associated with higher mortality at one year. PMID- 29020667 TI - Eye Size, Fovea, and Foraging Ecology in Accipitriform Raptors. AB - Birds with larger eyes are predicted to have higher spatial resolution because of their larger retinal image. Raptors are well known for their acute vision, mediated by their deep central fovea. Because foraging strategies may demand specific visual adaptations, eye size and fovea may differ between species with different foraging ecology. We tested whether predators (actively hunting mobile prey) and carrion eaters (eating dead prey) from the order Accipitriformes differ in eye size, foveal depth, and retinal thickness using spectral domain optical coherence tomography and comparative phylogenetic methods. We found that (1) all studied predators (except one) had a central and a temporal fovea, but all carrion eaters had only the central fovea; (2) eye size scaled with body mass both in predators and carrion eaters; (3) predators had larger eyes relative to body mass and a thicker retina at the edge of the fovea than carrion eaters, but there was no difference in the depth of the central fovea between the groups. Finally, we found that (4) larger eyes generally had a deeper central fovea. These results suggest that the visual system of raptors within the order Accipitriformes may be highly adapted to the foraging strategy, except for the foveal depth, which seems mostly dependent upon the eye size. PMID- 29020666 TI - SERS and fluorescence-based ultrasensitive detection of mercury in water. AB - The development of reliable and ultrasensitive detection marker for mercury ions (Hg2+) in drinking water is of great interest for toxicology assessment, environmental protection and human health. Although many Hg2+ detection methods have been developed, only few offer sensitivities below 1pM. Herein, we describe a simple histidine (H) conjugated perylene diimide (PDI) bolaamphiphile (HPH) as a dual-responsive optical marker to develop highly selective and sensitive probe as visible (sol-to-gel transformation), fluorescence and SERS-based Hg2+sensor platform in the water. Remarkably, HPH as a SERS marker supported on Au deposited monodispersed nanospheres monolayers (Au-MNM) of polystyrene offers an unprecedented selectivity and the best ever reported detection limit (LOD) of 60 attomolar (aM, 0.01 parts-per-quadrillion (ppq)) for Hg2+ in water. This is ten orders of magnitude lower than the United States Environmental Protection Agency (USEPA) tolerance limit of Hg2+ in drinking water (10nM, 2 ppb). This simple and effective design principle of host-guest interactions driven fluorescence and SERS-based detection may inspire the future molecular engineering strategies for the development of ultrasensitive toxic analyte sensor platforms. PMID- 29020668 TI - [Improvement of Balance and General Physical Fitness in Older Adults by Karate: A Randomized Controlled Trial]. PMID- 29020669 TI - Evidence Suggesting the End of Universal Domestic Asbestos Exposure in Metsovo, NW Greece. AB - BACKGROUND: Inhabitants of Metsovo, NW Greece, had been domestically exposed to asbestos from a gradually abandoned whitewash ("luto") that resulted in a declining epidemic of malignant mesothelioma. OBJECTIVES: We aimed to evaluate whether other sources of asbestos exposure exist following "luto" abandonment. METHODS: Chest computed tomography (CT) and bronchoalveolar lavage (BAL) were used to evaluate residual asbestos exposure in younger Metsovites through the identification of pleural calcifications and asbestos bodies, respectively. In order to provide a historical universally exposed group for comparison, we used the accumulated chest CTs and chest roentgenograms of our previous studies, performed in Metsovites with confirmed exposure but negative chest roentgenogram. As an additional external comparison group, we also assessed CT scans and chest roentgenograms of Metsovites being older than our target group obtained from the records of the Radiology Department between 2009 and 2011. In order to be able to compare our BAL findings, we sought historical controls among BAL studies performed in Metsovites with known exposure to "luto," in the 1980s-1990s, mainly to evaluate alveolitis. Those belonging to individuals of the same age range were used for further comparison. RESULTS: Twenty-two Metsovites born between 1960 and 1980 consented to undergo a chest CT scan, while another 14 CTs were retrieved from the records of the Radiology Department (among 86 of all ages), thus increasing the number of individuals studied to 36. Five of the 36 Metsovites studied were former "luto" users for a short period of time. Minimal pleural calcifications were present in 2 of them, while all chest CTs of nonusers were negative. All 8 BAL studies were negative for asbestos bodies. CONCLUSION: "Luto" use seems to have been the only source of considerable asbestos exposure in Metsovo. PMID- 29020670 TI - Optimal Role of the Nephrologist in the Intensive Care Unit: An Intensivist's Opinion. PMID- 29020672 TI - Early Environmental Enrichment Enhances Abnormal Brain Connectivity in a Rabbit Model of Intrauterine Growth Restriction. AB - INTRODUCTION: The structural correspondence of neurodevelopmental impairments related to intrauterine growth restriction (IUGR) that persists later in life remains elusive. Moreover, early postnatal stimulation strategies have been proposed to mitigate these effects. Long-term brain connectivity abnormalities in an IUGR rabbit model and the effects of early postnatal environmental enrichment (EE) were explored. MATERIALS AND METHODS: IUGR was surgically induced in one horn, whereas the contralateral one produced the controls. Postnatally, a subgroup of IUGR animals was housed in an enriched environment. Functional assessment was performed at the neonatal and long-term periods. At the long-term period, structural brain connectivity was evaluated by means of diffusion weighted brain magnetic resonance imaging and by histological assessment focused on the hippocampus. RESULTS: IUGR animals displayed poorer functional results and presented altered whole-brain networks and decreased median fractional anisotropy in the hippocampus. Reduced density of dendritic spines and perineuronal nets from hippocampal neurons were also observed. Of note, IUGR animals exposed to enriched environment presented an improvement in terms of both function and structure. CONCLUSIONS: IUGR is associated with altered brain connectivity at the global and cellular level. A strategy based on early EE has the potential to restore the neurodevelopmental consequences of IUGR. PMID- 29020671 TI - Oral Lactobacillus Counts Predict Weight Gain Susceptibility: A 6-Year Follow-Up Study. AB - BACKGROUND: Recent studies have shown an association between weight change and the makeup of the intestinal microbiota in humans. Specifically, Lactobacillus, a part of the entire gastrointestinal tract's microbiota, has been shown to contribute to weight regulation. AIM: We examined the association between the level of oral Lactobacillus and the subsequent 6-year weight change in a healthy population of 322 Danish adults aged 35-65 years at baseline. DESIGN: Prospective observational study. RESULTS: In unadjusted analysis the level of oral Lactobacillus was inversely associated with subsequent 6-year change in BMI. A statistically significant interaction between the baseline level of oral Lactobacillus and the consumption of complex carbohydrates was found, e.g. high oral Lactobacillus count predicted weight loss for those with a low intake of complex carbohydrates, while a medium intake of complex carbohydrates predicted diminished weight gain. A closer examination of these relations showed that BMI change and Lactobacillus level was unrelated for those with high complex carbohydrate consumption. CONCLUSION: A high level of oral Lactobacillus seems related to weight loss among those with medium and low intakes of complex carbohydrates. Absence, or a low level of oral Lactobacillus, may potentially be a novel marker to identify those at increased risk of weight gain. PMID- 29020673 TI - Mechanism of Action of TiF4 on Dental Enamel Surface: SEM/EDX, KOH-Soluble F, and X-Ray Diffraction Analysis. AB - This in vitro study aimed to evaluate the action of TiF4 on sound and carious bovine and human enamel. Sound (S) and pre-demineralised (DE) bovine and human (primary and permanent) enamel samples were treated with TiF4 (pH 1.0) or NaF varnishes (pH 5.0), containing 0.95, 1.95, or 2.45% F for 12 h. The enamel surfaces were analysed using SEM-EDX (scanning electron microscopy/energy dispersive X-ray spectroscopy) (n = 10, 5 S and 5 DE) and KOH-soluble fluoride was quantified (n = 20, 10 S and 10 DE). Hydroxyapatite powder produced by precipitation method was treated with the corresponding fluoride solutions for 1 min (n = 2). The formed compounds were detected using X-ray diffraction (XRD). All TiF4 varnishes produced a coating layer rich in Ti and F on all types of enamel surface, with micro-cracks in its extension. TiF4 (1.95 and 2.45% F) provided higher fluoride deposition than NaF, especially for bovine enamel (p < 0.0001). It also induced a higher fluoride deposition on DE samples compared to S samples (p < 0.0001), except for primary enamel. The Ti content was higher for bovine and human primary enamel than human permanent enamel, with some differences between S and DE. The XRD analysis showed that TiF4 induced the formation of new compounds such as CaF2, TiO2, and Ti(HPO4)2.H2O. In conclusion, TiF4 (>0.95% F) interacts better, when compared to NaF, with bovine and human primary enamel than with human permanent enamel. TiF4 provoked higher F deposition compared to NaF. Carious enamel showed higher F uptake than sound enamel by TiF4 application, while Ti uptake was dependent on the enamel condition and origin. PMID- 29020675 TI - Increased Platelet-Monocyte Interaction in Stable COPD in the Absence of Platelet Hyper-Reactivity. AB - BACKGROUND: Chronic obstructive pulmonary disease (COPD) is well known for its cardiovascular co-morbidities. Increased platelet-monocyte interaction is found in COPD and may reflect altered platelet function and a potential role for anti platelet therapy. OBJECTIVES: The objectives were to investigate platelet monocyte interaction, platelet activation and reactivity and plasmatic coagulation in stable COPD. METHODS: Platelet-monocyte interaction and platelet activation were determined by flow cytometry in 30 stable COPD patients and 25 controls. Platelet activation was measured by binding of fibrinogen to the activated fibrinogen receptor and platelet P-selectin expression at baseline and after platelet stimulation with platelet agonists. Plasmatic coagulation was measured by D-dimer and thrombin generation. RESULTS: Platelet-monocyte interaction was increased in stable COPD (median fluorescence intensity of platelet CD61 was 19.8 [IQR 14.0-33.2] vs. 10.0 [IQR 8.7-16.7], p = 0.002). In contrast, platelet activation and reactivity, reflected by fibrinogen binding and P-selectin expression, were the same in both groups. Plasma P-selectin and interleukin-6 were increased in COPD (p = 0.01 and p = 0.02, respectively), whereas soluble fibrinogen, D-dimer and thrombin generation were similar. CONCLUSIONS: Increased platelet-monocyte interaction was found in the absence of platelet hyper-reactivity and activation of plasmatic coagulation in stable COPD. Future clinical evaluation of the effects of different anti-platelet drugs in COPD is warranted, as anti-platelet therapy may interfere with platelet-monocyte interaction. PMID- 29020676 TI - Acupuncture May Improve Quality of Life in Menopausal Women: A Meta-Analysis of Randomized Controlled Trials. AB - OBJECTIVE: This analysis aims to identify, on the basis of the results of randomized controlled trials (RCTs), whether acupuncture therapy can alleviate menopausal symptoms and promote health-related quality of life. METHODS: We included RCTs that directly compared any type of acupuncture with sham acupuncture in treating menopause-related symptoms and which were published from January 1, 2010 to December 31, 2016 in 6 electronic databases. Two authors performed this work independently; 'risk-of-bias' assessment and data extraction were also independently performed by these 2 review authors. The outcomes are presented as scores of the menopause rating scale (MRS), which represents the self-assessment of patients. RESULTS: Six studies were included. Our analysis found that acupuncture can reduce the MRS score in menopausal women by the end of the treating period (2-3 months, on average) and even in the follow-up period (1 3 months), not only in the total score but also in each subscale score. But the grade of evidence is very low. CONCLUSIONS: Both the total score and the subgroup analysis strongly indicated that acupuncture can alleviate menopause-related symptoms. However, the evidence is not very strong. Thus, further studies about the efficiency of acupuncture on menopausal symptoms based on well-designed trials are needed. PMID- 29020674 TI - Obesity and Type 2 Diabetes: Two Diseases with a Need for Combined Treatment Strategies - EASO Can Lead the Way. AB - Obesity is a chronic metabolic disease affecting adults and children worldwide. It has become one of the leading causes of death, as obesity is known to be the main risk factor for a number of non-communicable diseases, in particular type 2 diabetes. This close relationship led to the connotation 'diabesity', highlighting the fact that the majority of individuals with diabetes are overweight or obese. Until today the BMI is still used to classify overweight and obesity. Since reduced muscle mass is highly prevalent throughout the BMI range, the measurement of body composition is strongly recommended. Moreover, it is essential for monitoring the course of weight reduction, which is part of every effective anti-obesity treatment. Weight reduction can be achieved via different weight loss strategies, including lifestyle intervention (diet and exercise), pharmacotherapy, or bariatric surgery. However, not all of these strategies are suitable for all patients, and any further needs should be considered. Besides, attention should also be drawn to concomitant therapies. These therapies may promote additional weight gain and further trigger the deterioration of blood glucose control. Thus, therapeutic strategies are warranted, which can be easily used for the management of obese patients with type 2 diabetes to achieve their glycemic and weight loss goals. PMID- 29020677 TI - The Nephrologist Has Great Potential to Have an Important Role in the Intensive Care Unit: Reply to the Letter to the Editor of David J.R. Morgan. PMID- 29020678 TI - Ovarian Cancer: A Heterogeneous Disease. AB - Ovarian cancer encompasses a collection of neoplasms with distinct clinicopathological and molecular features and prognosis. Despite there being a variety of ovarian cancer subtypes, these are treated as a single disease. Tremendous efforts have been made to characterize these subtypes and identify tumoral pathways and potential biomarkers for therapeutic strategies. As in other cancer types, tumor heterogeneity appears to be very high across subtypes and within a single tumor, representing a major cause of treatment failure. We describe the morphological and molecular heterogeneity among ovarian cancers and discuss recent advances in our understanding of intratumor heterogeneity. PMID- 29020679 TI - A Preclinical Evaluation Comparing the Performance of a Novel 19-G Flexible Needle to a Commercially Available 22-G EBUS-TBNA Sampling Needle. AB - BACKGROUND: Needle samples may not provide sufficient diagnostic material for the assessment of mediastinal lymph nodes. OBJECTIVE: The study compared the specimen size and diagnostic performance of a new 19-G endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) needle to that of a standard 22-G EBUS-TBNA needle in a swine model of granulomatous lymphadenopathy. METHODS: Granulomatous inflammation was induced in mediastinal lymph nodes (LNs) of 10 domestic swine by injection of talc slurry. The affected LNs were sampled with the 19- and 22-G needles. Collected core tissue area and volume were determined using a specialized software and known needle internal diameter. The sample's quality was assessed using the biopsy core morphology grade (BCMG) as well as the biopsy diagnostic correlation grade (BDCG). RESULTS: There was a significant increase in the average LN size from baseline (11.6 +/- 3.2 to 15.2 +/- 3.8 mm; p < 0.001) after talc injection. A total of 132 paired samples were collected from 38 LNs. The average mass and volume of the 19-G needle sample were larger than those of the 22-G needle sample: 33.78 +/- 47.48 vs. 25.18 +/- 32.08 mg (p < 0.002) and 11.40 +/- 13.91 vs. 6.91 +/- 6.42 mm3 (p < 0.0004), respectively. The pooled needle biopsy samples for the 19- and the 22-G needles had similar BCMG (1.38 +/- 0.86 vs. 1.43 +/- 0.87, p > 0.2) and BDCG (1.54 +/- 0.93 vs. 1.57 +/- 0.93, p > 0.2). The 19-G needle samples tended towards less blood contamination (p = 0.057), more often granuloma identification (46 vs. 32%, p = 0.2) and had more cartilage contamination (0.49 +/- 1.46 vs. 4.81 +/- 16.49% p < 0.003). CONCLUSION: In experienced hands, the 19- and the 22-G EBUS-TBNA needles have a similar diagnostic yield in the swine model of granulomatous lymphadenopathy. The samples collected by the 19-G needle are larger and may have less blood contamination. PMID- 29020680 TI - Hepatic T Cell Tolerance Induction in An Inflammatory Environment. AB - For the development of autoimmune hepatitis (AIH), genetic predisposition and environmental triggers are of major importance. Although experimental AIH can be induced in genetically susceptible mice, the low precursor frequency of autoreactive T cells hampers a deeper analysis of liver-specific T cells. Here, we established a system where the model antigen hemagglutinin (HA) is expressed exclusively in hepatocytes of Rosa26-HA mice following administration of a replication deficient adenovirus expressing Cre recombinase (Ad-Cre). Under these conditions, hepatocytes mimic the generation of altered-self neoantigens. To follow autoreactive T cells during AIH, we adoptively transferred HA--specific Cl4-TCR and 6.5-TCR T cells into Ad-Cre infected -Rosa26-HA mice. Alternatively, Rosa26-HA mice have been crossed with TCR transgenic mice that were infected with Ad-Cre to break hepatic tolerance and induce the expression of the HA antigen as a hepatic self-antigen. Surprisingly, neither adoptive transfer nor a very high precursor frequency of autoreactive T cells was able to break tolerance in the context of adenoviral infection. The low proliferation of the antigen experienced autoreactive T cells despite the presence of the autoantigen and inflammation points to anergy as a potential tolerance mechanism. This model underscores the crucial importance of genetic susceptibility to break tolerance against hepatic autoantigens. PMID- 29020682 TI - The Impact of Theoretical Orientation and Training on Preference for Diagnostic Models of Personality Pathology. AB - The role of theoretical orientation in determining preference for different methods of diagnosis has been largely unexplored. The goal of the present study was to explore ratings of the usefulness of 4 diagnostic methods after applying them to a patient: prototype ratings derived from the SWAP-II, the DSM-5 Section III specific personality disorders, the DSM-5 Section III trait model, and prototype ratings derived from the Psychodynamic Diagnostic Manual (PDM). Three hundred and twenty-nine trainees in APA-accredited doctoral programs and internships rated one of their current patients with each of the 4 diagnostic methods. Individuals who classified their theoretical orientation as "cognitive- behavioral" displayed a significantly greater preference for the proposed DSM-5 personality disorder prototypes when compared to individuals who classified their orientation as "psychodynamic/psychoanalytic," while individuals who considered themselves psychodynamic or psychoanalytic rated the PDM as significantly more useful than those who considered themselves cognitive-behavioral. Individuals who classified their graduate program as a PsyD program were also more likely to rate the DSM-5 Section III and PDM models as more useful diagnostic methods than individuals who classified their graduate program as a PhD program. Implications and future directions will be discussed. PMID- 29020683 TI - Combination of Androgen Deprivation Therapy and Salvage Radiotherapy versus Salvage Radiotherapy Alone for Recurrent Prostate Cancer after Radical Prostatectomy. AB - INTRODUCTION: To assess the value of androgen deprivation therapy (ADT) on salvage radiotherapy (RT) in post-prostatectomy recurrent prostate cancer patients, we compared the oncologic outcomes between patients receiving RT + ADT and those receiving RT alone. MATERIALS AND METHODS: We reviewed the records of patients diagnosed with prostate cancer between 1995 and 2011, including 93 patients who underwent salvage RT and 69 patients who underwent salvage RT + ADT. The ADT-free duration after withdrawal was calculated to verify testosterone recovery. RESULTS: Presalvage prostate serum antigen (PSA) was the only significantly different characteristic between the 2 groups (p < 0.001). The ADT free duration was greater than 6 months in >80% of patients. Presalvage PSA >=0.6 ng/mL, pathologic stage >=T3b, and RT + ADT were significantly associated with biochemical progression after salvage treatment. RT + ADT reduced biochemical progression in patients with seminal vesicle invasion or presalvage PSA >=0.6 ng/mL (p = 0.001) compared to RT alone; biochemical progression-free probability was unchanged in seminal vesicle noninvasive prostate cancer patients with presalvage PSA <0.6 ng/mL (p = 0.541). CONCLUSIONS: RT + ADT reduced the risk of biochemical progression after salvage treatment in patients with seminal vesicle invasion or presalvage PSA >=0.6 ng/mL, but had no effect in patients with seminal vesicle noninvasive disease and presalvage PSA <0.6 ng/mL. PMID- 29020681 TI - The Socioeconomic Burden of Obesity. AB - OBJECTIVE: To evaluate the socioeconomic impact of obesity by estimating the direct and indirect costs associated with obesity in Denmark, based on individual level data. METHODS: Costs were assessed for different BMI groups, and the relative risks for change in direct and indirect costs per BMI point above 30 were estimated. A fourth analysis estimated the odds ratio for comorbidities per BMI point above 30. Individual data on income, social transfer payments, healthcare costs and diagnoses were retrieved from national registries. RESULTS: One BMI point above 30 was associated with a 2% decrease in income, a 3% increase in social transfer payments, and a 4% increase in healthcare costs. In absolute numbers, income contributed to most of the total economic burden. One BMI point above 30 was also associated with increased comorbidity, which explains the increase in both direct and indirect costs. CONCLUSION: Obesity is associated with increased comorbidity, giving rise to an increase in both direct and indirect costs. Especially income is affected, which emphasizes the importance of including both measures when evaluating the total socioeconomic burden of obesity. Our findings draw attention to the potential for saving public resources and preventing loss of income by preventing obesity. PMID- 29020688 TI - Follow-up of Congenital Diaphragmatic Hernia: Need for Routinary Assessment of Acid Gastroesophageal Reflux with pH-metry. AB - INTRODUCTION: We aim to assess gastroesophageal reflux (GER) in patients treated for congenital diaphragmatic hernia (CDH) and to determine whether a pH-metry investigation should be routinely performed in follow-up. MATERIALS AND METHODS: Twenty-four-hour pH-metry at 1 year was performed in all patients treated for CDH between January 2014 and April 2015 (Group 1). We compared pH-metry results to those of two other groups: children treated for esophageal atresia (EA) (Group 2) and normal babies presenting with typical symptoms (Group 3). All the pH-metric findings were analyzed and compared. Intra-group analysis was performed in Group 1. RESULTS: Group 1 consisted of 21, Group 2 of 24, and Group 3 of 21 patients. Mean pH-metry values for Groups 1, 2, and 3 were, respectively: reflux index (RI) 4.3, 5.1, and 3.9; total number of refluxes (NR) 79.5, 88.8, and 88.7; refluxes longer than 5' (R > 5) 1.7, 2.3, and 1.47; and longest reflux episode (LR) 11.4, 13.3, and 8.6. No significant differences were found between Group 1 and the others. Only two CDH patients presented with GER-related symptoms. Patch was associated with significantly higher RI (8.5 vs. 2.98, p = 0.03). The worse was the defect, the worse were the pH-metric results (RI: A3.09, B3.15, and C9.1). CONCLUSION: We believe that a routine GER assessment should be performed in all CDH patients regardless the presence of symptoms. LEVEL OF EVIDENCE: This is a Level II study. PMID- 29020689 TI - Transpancreatic precut papillotomy versus double-guidewire technique in difficult biliary cannulation: prospective randomized study. AB - BACKGROUND AND STUDY AIMS: Difficult biliary cannulation and unintentional pancreatic duct cannulation are thought to be important contributors to pancreatitis occurring after endoscopic retrograde cholangiopancreatography. Our aim was to compare and evaluate the rates of success and complications of transpancreatic precut papillotomy (TPPP) and the double-guidewire technique (DGT), both with prophylactic pancreatic stenting. PATIENTS AND METHODS: From April 2011 to March 2014, patients with difficult biliary cannulation, in whom we planned to first position a guidewire in the pancreatic duct, were enrolled, and 68 patients were prospectively randomly allocated to two groups (TPPP 34, DGT 34). We evaluated the rates of success and complications for each group. RESULTS: TPPP had a significantly higher success rate (94.1 %) than DGT (58.8 %). The rate of post-ERCP pancreatitis was 2.9 % in both groups. There was no significant difference between the two groups in the overall rate of complications related to cannulation. CONCLUSION : If biliary cannulation cannot be achieved, TPPP should be selected first after unintentional pancreatic duct cannulation. PMID- 29020690 TI - Cold-forceps avulsion with adjuvant snare-tip soft coagulation (CAST) is an effective and safe strategy for the management of non-lifting large laterally spreading colonic lesions. AB - BACKGROUND AND AIMS: Non-lifting large laterally spreading colorectal lesions (LSLs) are challenging to resect endoscopically and often necessitate surgery. A safe, simple technique to treat non-lifting LSLs endoscopically with robust long term outcomes has not been described. METHODS: In this single-center prospective observational study of consecutive patients referred for endoscopic mucosal resection (EMR) of LSLs >= 20 mm, LSLs not completely resectable by snare because of non-lifting underwent standardized completion of resection with cold-forceps avulsion and adjuvant snare-tip soft coagulation (CAST). Scheduled surveillance colonoscopies were performed at 4 - 6 months (SC1) and 18 months (SC2). Primary outcomes were endoscopic evidence of adenoma clearance and avoidance of surgery. The secondary outcome was safety. RESULTS: From January 2012 to October 2016, 540 lifting LSLs (82.2 %) underwent complete snare excision at EMR. CAST was required for complete removal in 101 non-lifting LSLs (17.8 %): 63 naive non-lifting lesions (NNLs; 62.7 %) and 38 previously attempted non-lifting lesions (PANLs; 37.3 %). PANLs were smaller (P < 0.001) and more likely to be non-granular (P = 0.001) than the lifting LSLs. NNLs were of similar size (P = 0.77) and morphology (P = 0.10) to the lifting LSLs. CAST was successful in all cases and adverse events were comparable to lifting LSLs resected by complete snare excision. Recurrence at SC1 was comparable for PANLs (15.2 %) and lifting LSLs (15.3 %; P = 0.99), whereas NNLs recurred more frequently (27.5 %; P = 0.049); however, surgery was no more common for either type of non-lifting LSL than for lifting LSLs. CONCLUSION: CAST is a safe, effective, and surgery-sparing therapy for the majority of non-lifting LSLs. It is easy to use, inexpensive, and does not require additional equipment. PMID- 29020691 TI - Erratum: Comparison of Platelet-Rich Plasma, Stromal Vascular Fraction (SVF), or SVF with an Injectable PLGA Nanofiber Scaffold for the Treatment of Osteochondral Injury in Dogs. PMID- 29020692 TI - Erratum: Arthritis Progression on Serial MRIs Following Diagnosis of Medial Meniscal Posterior Horn Root Tear. PMID- 29020693 TI - Barriers to Postpartum Follow-Up and Glucose Tolerance Testing in Women with Gestational Diabetes Mellitus. AB - OBJECTIVE: This study aims to examine factors associated with postpartum follow up and glucose tolerance testing (GTT) in women with gestational diabetes mellitus (GDM). MATERIALS AND METHODS: Case-control study of women with GDM at a single institution with available outpatient records (January 2008-February 2016). Women with pregestational diabetes mellitus were excluded. The postpartum follow-up, GTT completion, and the reason for GTT completion failure (provider vs. patient noncompliance) were assessed. Bivariable and multivariable analyses were performed to identify factors associated with postpartum follow-up and GTT completion. RESULTS: Of 683 women, 82.0% (n = 560) returned postpartum, and 49.8% (n = 279) of those completed GTT. Women with Medicaid and late presentation to care were less likely to return (adjusted odds ratio [aOR]: 0.3, 95% confidence interval [CI]: 0.2-0.6 and aOR: 0.4, 95% CI: 0.2-0.7), but if they did, both factors were associated with increased odds of GTT completion (aOR: 2.0, 95% CI: 1.3-2.9 and aOR: 3.5, 95% CI: 1.8-6.6). Patient and provider noncompliance contributed equally to GTT completion failure. Trainee involvement was associated with improved test completion (aOR: 4.6, 95% CI: 2.4-8.8). CONCLUSION: The majority of women with GDM returned postpartum, but many did not receive recommended GTT. Public insurance and late presentation were associated with failure to return postpartum, but better GTT completion when a postpartum visit occurred. Trainee involvement was associated with improved adherence to screening guidelines. PMID- 29020694 TI - The U.S. Twin Delivery Volume and Association with Cesarean Delivery Rates: A Hospital-Level Analysis. AB - OBJECTIVE: The objective of this study was to test whether hospitals experienced in twin delivery have lower rates of cesarean delivery for twins. METHODS: We divided obstetric hospitals in the 2011 National Inpatient Sample by quartile of annual twin deliveries and compared twin cesarean delivery rates between hospitals with weighted linear regression. We used Pearson's coefficients to correlate a hospital's twin cesarean delivery rate to its overall cesarean delivery and vaginal birth after cesarean (VBAC) rates. RESULTS: Annual twin delivery volume ranged from 1 to 506 across the 547 analyzed hospitals with a median of 10 and mode of 3. Adjusted rates of cesarean delivery were independent of delivery volume with a rate of 75.5 versus 74.8% in the lowest and highest volume hospitals (p = 0.09 across quartiles). A hospital's cesarean delivery rate for twins moderately correlated with the overall cesarean rate (r = 0.52, p < 0.01) and inversely correlated with VBAC rate (r = - 0.42, p < 0.01). CONCLUSION: Most U.S. obstetrical units perform a low volume of twin deliveries with no decrease in cesarean delivery rates at higher volume hospitals. Twin cesarean delivery rates correlate with other obstetric parameters such as singleton cesarean delivery and VBAC rates suggesting twin cesarean delivery rate is more closely related to a hospital's general obstetric practice than its twin delivery volume. PMID- 29020695 TI - Transition to Routine Premedication for Nonemergent Intubations in a Level IV Neonatal Intensive Care Unit. AB - OBJECTIVE: This study aims to test whether implementing a guideline for nonemergent intubation improves the rate of premedication for nonemergent intubations in an academic level IV neonatal intensive care unit (NICU). We further sought to test the hypothesis that neonates who receive premedication for a nonemergent intubation have decreased pain scores at the time of intubation, fewer intubation attempts, and no associated adverse events. STUDY DESIGN: This was a prospective observational study with ongoing audit and feedback as well as statistical process control analysis. Data collection began on October 1, 2014. Clinical guideline implementation began in October 2015. A percent "P"-chart spanning seven-quarters was constructed with statistical process control analysis plotting premedication rates over time. Student's t-tests or Wilcoxon rank-sum tests were used for secondary outcomes. RESULTS: The mean number of nonemergent intubations given premedications increased from 34 to 82%. The mean pain score was lower when premedications were given: 0.34 (95% confidence interval [CI]: 0.10-0.58) versus 2.8 (95% CI: 1.9-3.6) (p < 0.001). The number of intubation attempts did not differ with premedications. CONCLUSION: Adopting a guideline with supporting educational initiatives to standardize premedication before nonemergent intubations increased this practice. This regimen lowered clinical pain scores with no difference in the number of intubation attempts. PMID- 29020696 TI - Umbilical Cord Oxygen Content and Neonatal Morbidity at Term. AB - OBJECTIVE: The objective of this study was to investigate the relationship between umbilical cord partial pressure of oxygen (pO2) at delivery and neonatal morbidity. STUDY DESIGN: This is a secondary analysis of a prospective cohort study of term deliveries with universal cord gas collection between 2010 and 2014. The primary composite outcome of neonatal morbidity included neonatal death, meconium aspiration syndrome, intubation, mechanical ventilation, hypoxic ischemic encephalopathy, and hypothermia treatment. Umbilical artery (UA), vein (UV), UV minus UA (Delta) pO2, and hypoxemia (pO2 <= fifth percentile) were compared between patients with and without neonatal morbidity. Areas under the receiver-operating characteristic curves were used to assess the predictive ability of pO2. RESULTS: Of 7,789 patients with paired umbilical cord pO2, 106 (1.4%) had the composite neonatal morbidity. UA pO2 was significantly lower in patients with neonatal morbidity compared with those without (median [interquartile range]: 16 (12, 21) vs. 19 (15, 24) mm Hg, p < 0.001). There was no difference in median UV pO2 or DeltapO2 between the groups. UA and UV hypoxemia were significantly more common in patients with neonatal morbidity. UA pO2 had limited predictive ability for neonatal morbidity (area under the curve: 0.61, 95% confidence interval: 0.6-0.7). CONCLUSION: Although UA pO2 is significantly lower in patients with neonatal morbidity, it is a poor predictor of neonatal morbidity at term. PMID- 29020697 TI - Effect of Maternal Age and Fetal Number on the Risk of Hypertensive Disorders of Pregnancy. AB - OBJECTIVE: Our primary objective was to compare the differential contribution of fetal number and maternal age to the risk of hypertensive disorders of pregnancy (HDP). STUDY DESIGN: This was a secondary analysis of a large study of primary cesarean delivery. Women with singleton, twin, or triplet gestations were included. Women were divided into groups based on fetal number and maternal age. The primary outcome was HDP. A logistic regression model was fit to adjust for confounders. The incidence of HDP was compared with the reference group and within exposure groups. RESULTS: Of the 70,417 women included, HDP occurred in 8,079 (12%) women. The frequency of HDP among the comparison groups ranged from 11 to 38%. Nearly all groups had significantly increased risk of HDP compared with young maternal age singletons. Twin and triplet gestations increased the risk of HDP over singletons irrespective of maternal age after adjusting for baseline disease and race. The risk of HDP did not significantly increase with maternal age when fetal number was similar. CONCLUSION: Fetal number significantly increased the risk of HDP and contributed more to that risk than maternal age. Maternal age became significant in groups with age greater than 40 years. PMID- 29020698 TI - Norovirus outbreaks in german refugee camps in 2015. AB - Purpose Refugees often live in confined housing conditions with shared kitchen and sanitary facilities, rendering susceptible to communicable diseases. We here describe the outbreak, spread and self-limiting nature of a norovirus outbreak in a German refugee camp in the winter of 2015. Methods During a norovirus outbreak, data on clinical symptoms, nationality and living conditions was obtained in a refugee camp in northern Germany in the winter of 2015. Furthermore secondary data on norovirus outbreaks in 2015 was assessed. Results Amongst n = 982 refugees, n = 36 patients (3.7 %) presented with acute norovirus gastroenteritis. The vast majority of cases were children, only the first patient was admitted to the hospital. Intensified hygiene measures were implemented on day 2 of the outbreak, but new cases peaked on day 21 and occurred until one month after the first case. Different cultural backgrounds, eating habits and hygiene standards amongst the refugees made it particularly challenging to implement stringent isolation and hygiene measures. Despite these predisposing factors, only minor norovirus outbreaks were reported in refugee camps in 2015. Conclusion Adults refugees had a low attack rate of symptomatic norovirus infection, while small children are at high risk. Infection spreads despite hygiene measures and camp sites and staff should be prepared for the particular challenges of such situations with a particular focus on cultural-background specific implementation of hygiene measures. PMID- 29020700 TI - A case report of delayed intra-abdominal and intra-luminal haemorrhage after polypectomy. AB - We report the case of a 70-year-old man who presented with hematochezia, anaemia, and severe abdominal pain 6 days after polypectomy. Contrast-enhanced ultrasound and computed tomography revealed no signs of free intra-abdominal air but showed intra-abdominal and intra-luminal bleeding. The patient was referred to colonoscopy in the operation room, which showed a coagula and venous bleeding at the polypectomy site. Emergency laparotomy was performed and revealed a large intra-abdominal mesocolic hematoma, which was surgically removed. The patient's post-operative recovery was uneventful. While few reports of splenic vessel rupture after colonoscopy due to traction on the splenocolic ligament have been published, delayed mesocolic hematoma without evidence of organ damage has not been reported so far. Clinicians need to be aware of these rare but life threatening complications following colonoscopy. PMID- 29020699 TI - The first homemade colonoscopy trainer. AB - Introduction Colonoscopy trainers have gained recognition for improving endoscopy skills and preparing for real procedures on humans. Unfortunately, due to their high price, commercial simulators are hard to obtain, especially for small medical centers. However, a solution might be to construct a device for themselves. Aim Our goal was to build a relatively cheap and easy-to-construct simulator for residents who want to start learning colonoscopy. Materials and methods The box model colonoscopy trainer was designed and constructed. The artificial colon was made from 2 layers of fabric and rubber rings between them. Velcro attached to the artificial colon and to the box, and the tarp straps that simulate peritoneal adhesions allow the bowel to be arranged in many different configurations. Moreover, some aspects of polypectomy training have been incorporated in the colonoscopy simulator. Results The self-constructed simulator was found to be an effective training device, with the total cost of parts not exceeding $30. Conclusions In this paper, we present the first homemade simulator for colonoscopy training. It offers the opportunity for skills acquisition in a preclinical setting. PMID- 29020701 TI - [Metal or plastic stents for preoperative biliary drainage in resectable pancreatic cancer?] PMID- 29020702 TI - [Acute Diplopia: Differential Diagnosis and Treatment Options]. AB - Acute diplopia can be caused by harmless disorders of the optical system, but also by dangerous intracranial or intraorbital processes that lead to movement disorders of the eyes. It may therefore be difficult to decide whether further diagnostic evaluation is necessary. This article presents a short, structural overview of the most important differential diagnoses of acute diplopia and the treatment options. PMID- 29020703 TI - [Public Health Education in Health-Related Study Programs in Germany: Perspectives from Course Coordinators]. AB - Introduction Public health education in Germany takes place in public health courses and in health-related study courses. We aim to provide data and knowledge on structure and content of health-related study courses and on cooperation between universities and/or Universities of Applied Sciences. Methods We conducted an online-based cross-sectional study (01.6. - 15.9.2015), involving 93 universities and Universities of Applied Sciences in Germany. Herewith we addressed 351 study course coordinators. We included course coordinators from universities and Universities of Applied Sciences who were members of the German Association of Social Medicine and Prevention (DGSMP) or in the Association Universities for Health (HOGE). Results 104 course coordinators responded to the survey (43% men, 57% women). Among others, global health and environmental health are primarily taught in public health courses; ethics and psychology primarily in health-related study courses. Financial support for teaching and research is highly needed at universities and at universities of applied sciences. Furthermore, there is a high need of cooperation between institutions. Additionally, course coordinators from universities of applied sciences indicated a need for cooperative doctoral programs. Conclusion In Germany, competence criteria for teaching public health are missing. Additionally, cooperation between study courses needs to be developed further. PMID- 29020704 TI - [Current Research Activities on Person-Centered Medicine in Academic Institutes of General Practice in Germany and Austria]. AB - AIM OF STUDY: Person-centered medicine (PCM) with its focus on humanistic biographical-oriented medicine and integrated, positive-salutogenic health is a central aspect in the patient-physician relationship in general practice. The objective of this analysis is to assess the prevalence and type of research project in academic institutions of general practice in Germany (Ger) and Austria (At) and the thematic priorities of the projects in the areas PCM, health promotion (HP), prevention (PRE) and conventional medicine (CM). METHODS: A search was conducted (September-December 2015) on the websites of 30 institutes and divisions of general medicine for their current research projects. The retrieved projects were assigned to five categories: PCM, HP, PRE, CM and others. Subsequently, we identified the targeted patient groups of the projects as well as the thematic focus in the categories PCM, HP, PRE and CM with focus on PCM and HP. RESULTS: 541 research projects were identified, 452 in Germany and 89 in Austria. Research projects were only included if they were explicitly indicated as research-oriented. Seventy projects addressed PCM aspects, 15 projects HP aspects, 32 projects PRE aspects and 396 projects CM aspects. The most frequently target groups in the categories PCM (24 of 70) and HP (7 of 15) were chronically ill patients. The most common thematic focus in PCM was communication (13 of 70) and in HP, physical activity (6 of 15). CONCLUSION: The vast majority of research projects investigated conventional medical topics. The percentage of research activities in the field of PCM (13%) or PCM including HP (16%) in Ger and At is below the European average of 20%. From our point of view, PCM and HP need to be implemented to a greater extent in general practice. PMID- 29020705 TI - Mechanical Strength of the Proximal Tibia Following Total Knee Arthroplasty: A Cadaveric Study of Resection Depth and Bone Density. AB - BACKGROUND: Tibial component failure has been a problem in total knee arthroplasty, it is still undetermined how tibial resection depth affects the strength to support a tibial component. This study examined the relationship between the resection depth and the bone density and the mechanical strength to support the tibial component. MATERIALS AND METHODS: Eight matched pairs of fresh, frozen cadaver lower legs were imaged with computed tomography to assess the bone density. A right tibia was resected at minimum resection level and a left tibia was resected at deep resection level. After the tibial component was implanted with cement on each tibia, it was loaded on a materials testing load frame to measure the stiffness and the load to failure. RESULTS: The average bone density at the minimum resection level of the tibia was significantly higher than at deep level (p=0.0003). The average stiffness and load to failure of the proximal tibia were 1105 N/mm (range 889 to 1303 N/mm) and 5626 N (range 3360 to 9098 N). There was no statistical correlation between tibial resection depth and the axial stiffness (p=0.4107) or the load to failure (p=0.1487). CONCLUSIONS: Although the bone density at a minimum resection level was higher than that at a deep level, the strength to support the tibial component was not statistically higher at a minimum cutting level than at a deeper cutting level proportionally. Surgeons may not need to minimize a proximal tibial bone resection to maintain a stronger support for a tibial component. PMID- 29020706 TI - Social Media and Pediatric Scoliosis: An Analysis of Patient and Surgeon Use. AB - INTRODUCTION: The purpose of this observational study was to investigate and analyze the social media presence of both patients and surgeons in relation to pediatric scoliosis. First, patient Instagram (Instagram, Inc., San Francisco, California) posts were evaluated for 1) media format; 2) timing in relation to surgery; 3) tone; 4) perspective; 5) content; and 6) subject reference. To analyze reciprocal engagement, the presence and activity of pediatric scoliosis surgeons at five major academic centers were subsequently analyzed on Instagram, Twitter (Twitter Inc., San Francisco, California), and LinkedIn (LinkedIn Corporation, Sunnyvale, California). MATERIALS AND METHODS: A search of public Instagram profiles was performed over a one-year period from February 2016 to February 2017. Posts related to pediatric scoliosis were selected for analysis using a hashtag search with 30 related terms. A total of 982 posts were retrieved, with 669 posts meeting the inclusion criteria. Each post was then evaluated for timing, tone, perspective, and content using a categorical scoring system. An additional analysis was performed using academic orthopaedic hospitals' websites, in which the names of scoliosis surgeons were found and searched for on Instagram, Twitter, and LinkedIn. Their profiles were analyzed for level and length of activity, number of followers or connections, and references to clinical practice. RESULTS: A total of 669 posts related to scoliosis were analyzed, the majority of which were temporally related to non operative (74.7%) or post-operative (21.8%) settings. Patients (33.3%), friends and family (34.4%), and professional organizations (23.8%) were the most active contributors. The vast majority of posts were positive in nature (88.9 %) and highlighted the patient experience (79.2%), specifically related to bracing (33.1%), activities of daily living (31.7%), and surgical site or x-rays (25.5%). Of the social media sites analyzed, surgeons were found to have the highest presence on LinkedIn (55% have accounts with a mean of 175 connections) compared to Instagram (8%, 57 followers) and Twitter (33%, 61 followers). Surgeons were also noted to have more information regarding their practice, training, and clinical skills on LinkedIn. CONCLUSIONS: An analysis of Instagram posts related to scoliosis showed that the majority were shared by patients in the non operative period and overwhelmingly had a positive tone. The content of the posts focused mainly on brace wear, activities of daily living, and post-operative appearance or x-rays. This information provides further insight into what patients deem important regarding pediatric scoliosis care. Analysis of the social media presence of scoliosis surgeons showed that they have an underwhelming presence on Instagram and Twitter, but are more active on LinkedIn, a site geared more toward professional development and networking than other social media options. PMID- 29020707 TI - Surgical Skills Improvement Using a Low-Cost Laparoscopic Simulator for Ventral Incisional Hernia. AB - INTRODUCTION: Ventral incisional hernia is one of the most common procedures in laparoscopic surgery, however, it requires proper training before doing it in the operating room. We propose a low-cost mechanical simulator with a new optical system to learn the basic steps of the procedure and improve surgical laparoscopic skill. MATERIALS AND METHODS: From November 3, 2014 to January 4, 2015, five residents and five surgeons with no prior laparoscopic experience, as well as two laparoscopic expert surgeons, participated in our study. They repeated the procedure three times per day for seven days. From January 10, 2015 to April 21, 2015, the five trained and five non-trained residents performed (each) five real laparoscopic ventral or median incisional hernia repairs under senior supervision. Operative time, decision making capabilities, number of errors, laparoscopic skill, and depth perception were compared between the two groups. RESULTS: A multiple regression (R) model was calculated and F-test showed a significant relation between operative time and numbers of procedures with the laparoscopic simulator (p<0.001) for the resident and non-laparoscopic surgeons groups and a multiple R-squared = 0.9974 (highly significant) of the model. No statistical difference was found between residents and non-laparoscopic surgeons (p<0.001), but both groups reached the same level as the expert surgeons after intensive training. Kruskal-Wallis was used to show an increased operative time for non-trained group. Pearson test and t-test showed a lower number of errors and failure in the trained group. CONCLUSIONS: These results indicate that this new model of simulator could shorten the learning curve of surgical trainees for laparoscopic incisional hernia. PMID- 29020708 TI - Patient Factors Associated with Shorter Length of Stay Following Total Hip Arthroplasty-A Retrospective Cohort Study. AB - INTRODUCTION: Total hip arthroplasty (THA) is an increasingly common procedure in the United Kingdom and incurs vast costs, with a mean length of stay (LOS) of 5.5 days. Reducing LOS plays a key role in improving cost-effectiveness, morbidity, and patient satisfaction following many orthopaedic procedures. The aim of this study was to identify attributes in patients with the shortest LOS following THA, with a view to targeting those with the potential for early discharge. MATERIALS AND METHODS: 1280 THA cases over one year at one institution were reviewed in a retrospective case note study. Of these, 131 patients had LOS=2 days. Various factors (age, gender, American Society of Anesthesiologists (ASA) score, primary diagnosis, body mass index (BMI), socio-economic status) were compared between this group and the rest of the cohort. Further characteristics of the short LOS group were also explored to identify trends for future study. RESULTS: Lower age, male gender, and low ASA grade were significantly associated with the short LOS group (all p<0.001). BMI, primary diagnosis, and socioeconomic status showed no significant differences. Short LOS patients were also noted to have few comorbidities, family at home, and independent transport. CONCLUSION: Younger age, male gender, and lower ASA grade are associated with early discharge following THA, and could be used to identify patients suitable for early discharge. PMID- 29020709 TI - AbsorbaSealTM Vascular Closure Device: A Novel Device for Hemostasis Following Interventional Peripheral Vascular Procedures. AB - INTRODUCTION: Vascular closure devices (VCDs) are designed to achieve rapid hemostasis during percutaneous coronary and peripheral vascular procedures. Studies demonstrate that VCDs improve time to hemostasis (TTH) and time to ambulation (TTA) in comparison to standard manual compression. The available products, however, typically have 13-17 steps in their application, often require hemostatic collagen or other agents as part of the process, and can result in significant scarring at the puncture site that can impact future access. The aim of this study was to investigate the performance of a three-step, novel VCD for access site TTH, short-term and long-term histology, and a first-in-man clinical study. MATERIALS AND METHODS: This study evaluated AbsorbaSealTM (CyndRx, LLC, Brentwood, Tennessee), a simple, three-step, VCD with bio-absorbable components. Following an institutional review board (IRB) approval, a 6-F sheath was placed directly into the porcine aorta, AbsorbaSealTM was used to seal the puncture site, and a measure of total time of deployment (TTD) and TTH was performed, as well as histologic evaluation at 30, 60, and 180 days. A complement activation test was performed to determine the potential for activation of the complement system as a mediator of inflammation. The test was performed by directly incubating the VCDs AbsorbaSealTM and Angio-SealTM (Terumo Interventional Systems, Tokyo, Japan) in human serum. Serum samples were removed after 30, 60, and 90 minutes and tested for the presence and amount of complement protein SC5b 9. In the first in-man trial, the device was deployed in anticoagulated patients undergoing interventional vascular procedures. The TTH, estimated blood loss, patient pain scores, and procedural and follow-up complications were recorded. RESULTS: In the acute and chronic porcine studies, TTD averaged 25 seconds (17-29 seconds). Vascular control was immediate, yielding a TTH of effectively zero seconds. Histologic evaluation demonstrated complete endothelial coverage of the device by 30 days without evidence of bleeding, clotting, or inflammation. At 60 days, the significant mass of the device had dissolved and normal appearing collagen surrounded the devices with essentially no inflammatory response. By six months, all but one microscopic segment of one of the devices had been absorbed with normal appearing vascular endothelium, and no, or minimal, scarring appreciated. The complement test demonstrated that the AbsorbaSealTM had similar, or lower, complement concentrations than the negative controls and significantly less than Angio-SealTM. This supported the histologic findings of minimal to no inflammation. The VCD was deployed in 20 patients undergoing interventional vascular procedures. The mean TTH was 2.3 +/- 1.5 minutes. Estimated blood loss was 11.7 mL +/- 3.5 mL, and no significant hematoma was noted. Post-procedure pain scores were low, with a mean of 1.4 +/- 0.8 on a 0-10 pain rating scale. There were no perioperative complications and no adverse events at follow-up. CONCLUSIONS: The AbsorbaSealTM is safe and simple to use for vascular closure after interventional vascular procedures with favorable outcomes including a short TTH, minimal procedural blood loss, low postoperative pain scores, and no perioperative complications or adverse effects. Histologic evaluation reveals rapid device absorption and little scar formation both short- and long-term. A direct study of complement activation supports that AbsorbaSealTM evokes a minimal inflammatory response that is significantly less than Angioseal. PMID- 29020710 TI - Fluorescent Imaging Evaluation of Lidocaine Distribution Following Bier Block in the Upper Extremity. AB - INTRODUCTION: Bier block regional anesthesia has been used as an alternative to general anesthesia for years. Despite multiple theories and multiple techniques to delineate the location of the action of lidocaine during Bier block anesthesia, there has not been a consensus on the location of action. The purpose of this study was to use fluorescent imaging to further investigate the site of action of lidocaine during Bier block. MATERIALS AND METHODS: Three patients with carpal tunnel syndrome underwent open carpal tunnel release with Bier block anesthesia performed in the standard fashion with 1cc of Indocyanine green (IcG) mixed with lidocaine. Fluorescent images were obtained at the time of injection and after 10 minutes to allow patients to reach the level of surgical anesthesia. Repeated imaging was obtained at the time of completion of the procedure or at 30 minutes of tourniquet time. RESULTS: At time 0, IcG was distributed along the superficial venous system of the hand and forearm. At 10 minutes, the distribution of IcG was within the capillary system and infiltrating the dermis. The distribution later saturated the capillary beds and remained present until release of the tourniquet. CONCLUSIONS: The authors demonstrate that some lidocaine action occurs at the cutaneous level during the administration of a Bier block. Due to limited field depth of view provided by the SPY(r) Elite System (Novadaq Technologies Inc., Mississauga, Canada), we are unable to draw any conclusions as to the distribution of the IcG or lidocaine at the level of the larger nerves at the site of the tourniquet. PMID- 29020715 TI - Diagnosis and management of polymyalgia rheumatica. AB - Polymyalgia rheumatica (PMR) is a common inflammatory condition of unknown aetiology with a prevalence of 1 in 133 in the over 50s, and a female to male ratio of 2:1. Symptoms develop over a matter of weeks; typically bilateral shoulder or pelvic girdle pain and stiffness, that is worse in the mornings. Associated symptoms include low-grade fever, malaise, fatigue, low mood, poor appetite, and weight loss. There is no specific diagnostic test for PMR but the usual pattern is a commensurate rise in CRP and ESR. A small proportion of PMR patients will have normal inflammatory markers. PMR is associated with giant cell arteritis (GCA). Half of patients with GCA will have some PMR symptoms and up to one fifth of patients with PMR will have evidence of GCA. Other conditions that can mimic PMR include: rheumatic disease in the elderly e.g. rheumatoid arthritis; inflammatory muscle diseases; thyroid disease; malignancy; infection; bilateral shoulder capsulitis; osteoarthritis, Parkinsonism and depressive illness. At diagnosis and each follow-up visit it is imperative to consider the potential for associated GCA. The patient should be asked about headaches, jaw claudication and visual disturbance. If there is any suspicion of GCA, urgent discussion with the rheumatologist should take place that day. PMID- 29020716 TI - Improving joint pain and function in osteoarthritis. AB - Osteoarthritis has become a major chronic pain condition. It affects more than 10% of adults and accounts for almost 10% of health service resources. The impact of osteoarthritis is amplified by underuse of effective muscle strengthening exercises and a focus on often less effective and poorly tolerated analgesic therapies. Although traditionally considered to be primarily a disease of cartilage, there is now ample evidence that typical clinical osteoarthritis involves multiple tissue pathologies. Increased BMI is associated with a higher incidence of knee osteoarthritis. Anatomical abnormalities such as valgus alignment or previous joint trauma including meniscectomy, anterior cruciate ligament rupture and fracture through the joint are also associated with increased incidence of osteoarthritis. Pain is the main presenting symptom. However, we still have a poor understanding of the causes of pain in osteoarthritis. In patients aged 45 or over the diagnosis should be made clinically without investigations if the patient has activity-related joint pain in addition to early morning joint stiffness lasting less than 30 minutes. Muscle strengthening and aerobic exercise have been shown to improve joint pain and function. Weight loss not only improves joint pain and function but has a myriad of other health benefits, reducing the incidence of lifestyle associated diseases such as cardiovascular disease and type 2 diabetes, and mechanical stress on the joints. PMID- 29020717 TI - Ulnar nerve injury on removal of a contraceptive implant. AB - The close proximity of contraceptive implant placement to the course of the ulnar nerve can result in injury. Several factors have been implicated in this complication including: low BMI, erroneous placement of the implant, implantation over the brachial groove, and migration of the implant from its original insertion. Clinicians should familiarise themselves with the vulnerable neurovascular structures in the area and refer promptly to a specialist if any neurological symptoms develop during placement or removal of these devices. The prognosis following nerve injury is related to the anatomical site, pathophysiological depth of injury and delay between injury and treatment. Minor injury (neurapraxia) results from ischaemia or oedema within the nerve. In more severe injuries there is axonal damage resulting in Wallerian degeneration. The axonal damage affects all nerve fibre subtypes and as a result there is usually neuropathic pain and loss of autonomic sudomotor and vasomotor function in the cutaneous territory of the affected nerve. Loss of these autonomic supplies results in disruption of function of sweat glands and blood flow regulation which manifests as dry erythematous skin. High-grade nerve injury with axonal degeneration should be suspected when there is neuropathic pain, autonomic dysfunction and a positive Tinel's sign (pain in the territory of the nerve elicited by gently tapping over the site of suspected injury). The British Orthopaedic Association recommends prompt referral for specialist assessment when there is motor or sensory dysfunction in the territory of a nerve following an intervention in proximity to the nerve. Early recognition and intervention may prevent further degeneration and improve outcomes. PMID- 29020718 TI - MP-MRI could improve the diagnosis of prostate cancer. PMID- 29020719 TI - Diagnosis and management of nephrotic syndrome. AB - Nephrotic syndrome is defined by a triad of clinical features: oedema, substantial proteinuria (> 3.5 g/24 hours) and hypoalbuminaemia (< 30 g/L). It is often associated with hyperlipidaemia, thromboembolism and an increased risk of infection. Nephrotic syndrome develops following pathological injury to renal glomeruli. This may be a primary problem, with a disease specific to the kidneys, or secondary to a systemic disorder such as diabetes mellitus. The most common cause in children is minimal change glomerulonephritis. In white adults, nephrotic syndrome is most frequently due to membranous nephropathy whereas in populations of African ancestry the most common cause of nephrotic syndrome is focal segmental glomerulosclerosis. Diabetic nephropathy is the most common multisystem disease that can cause nephrotic syndrome. Patients typically present with periorbital oedema (most noticeable in the morning) or dependent pitting oedema (more common later in the day). Proteinuria should be documented by a quantitative measurement e.g. urine protein: creatinine ratio (PCR) or albumin: creatinine ratio (ACR). PCR > 300-350 mg/mmol indicates nephrotic range proteinuria. Urgent referral to a nephrologist (ideally within 2 weeks) is necessary and a renal biopsy is usually performed. This will establish what form of glomerular disease is responsible. Additional tests may be undertaken to assess if nephrotic syndrome is secondary to another disorder e.g. systemic lupus erythematosus or amyloidosis. PMID- 29020720 TI - Pyelonephritis can lead to life-threatening complications. AB - Acute pyelonephritis is suggested by the constellation of fever (temperature >= 38.5 degrees C), flank pain (typically unilateral), nausea and vomiting, and costovertebral angle tenderness. Complaints typical of lower UTI are variably present. The severity of symptoms ranges from a mild pyrexial illness to life threatening sepsis. The diagnosis of acute pyelonephritis should be suspected on the basis of the history and clinical examination. If the urine dipstick is negative for nitrites and leukocyte esterase this does not exclude the diagnosis, but it should prompt a re-evaluation of the clinical features and consideration of other potential diagnoses. Antibiotic therapy should be initiated without delay; this can be modified subsequently depending on the culture result. Antibiotics that are typically effective in lower urinary tract infections are frequently inadequate in acute pyelonephritis, and more prolonged therapy is necessary. Review of the clinical course and urine culture results is necessary to ensure that the patient is improving. Patients who have not improved within two days of commencing antimicrobial treatment should be referred to secondary care unless the infecting pathogen is not susceptible to the agent originally used, an alternative appropriate antibiotic is available, and the patient remains well enough for community care. PMID- 29020722 TI - Editor's Introduction to This Issue (G&I 15:3, 2017). PMID- 29020721 TI - Artefact mimicking torsades: treat the patient not the ECG. AB - ECG interpretation is an essential skill in the management of the acutely unwell patient and in addition to history taking and physical examination has been shown to have a significant effect on referral patterns to cardiologists. One of the basic initial steps in ECG interpretation is assessment for the presence of artefact which if present can dramatically influence the diagnosis. The most common sources of artefact are tremor e.g. in Parkinson's disease, loose skin electrodes and electromagnetic interference from other medical devices and mobile phones. The Medicines and Healthcare products Regulatory Agency in the UK advises that mobile phones should be kept at least one metre away from equipment that is sensitive to electromagnetic interference. The possibility that artefact is the cause of the ECG appearance should always be considered if bizarre ECG changes are present particularly in an asymptomatic patient. The ECG should always be interpreted in the context of the patient's condition. If artefact is thought to be the cause of the ECG appearance, then any contributory factors present should be corrected and the ECG should be repeated before invasive investigations are undertaken or treatment is administered. PMID- 29020723 TI - Chromosomal Microarray Testing in 42 Korean Patients with Unexplained Developmental Delay, Intellectual Disability, Autism Spectrum Disorders, and Multiple Congenital Anomalies. AB - Chromosomal microarray (CMA) is a high-resolution, high-throughput method of identifying submicroscopic genomic copy number variations (CNVs). CMA has been established as the first-line diagnostic test for individuals with developmental delay (DD), intellectual disability (ID), autism spectrum disorders (ASDs), and multiple congenital anomalies (MCAs). CMA analysis was performed in 42 Korean patients who had been diagnosed with unexplained DD, ID, ASDs, and MCAs. Clinically relevant CNVs were discovered in 28 patients. Variants of unknown significance were detected in 13 patients. The diagnostic yield was high (66.7%). CMA is a superior diagnostic tool compared with conventional karyotyping and fluorescent in situ hybridization. PMID- 29020724 TI - Chromothripsis in Treatment Resistance in Multiple Myeloma. AB - Multiple myeloma (MM) is a malignant disease caused by an abnormal proliferation of plasma cells, of which the prognostic factors include chromosomal abnormality, beta-2 microglobulin, and albumin. Recently, the term chromothripsis has emerged, which is the massive but highly localized chromosomal rearrangement in response to a one-step catastrophic event. Many studies have shown an association of chromothripsis with the prognosis in several cancers; however, few studies have investigated it in MM. Here, we studied the association between chromothripsis like patterns and treatment resistance or prognosis. First, we analyzed nine MM cell lines (U266, MM.1S, RPMI8226, KMS-11, KMS-12-BM, KMS-12-PE, KMS-28-BM, KMS 28-PE, and NCI-H929) and bone marrow samples of four patients who were diagnosed with MM by next-generation sequencing-based copy number variation analysis. The frequency of the chromothripsis-like pattern was observed in seven cell lines. We analyzed the treatment-induced chromothripsis-like patterns in KMS-12-BM and KMS 12-PE cells. As a result, breakpoints and chromothripsis-like patterns were increased after drug treatment in the relatively resistant KMS-12-BM. We further analyzed the patients' results according to the therapeutic response, which was divided into sensitive and resistant, as suggested by the International Myeloma Working Group. The chromothripsis-like pattern was more frequently observed in the resistant group. In the sensitive group, the frequency of the chromothripsis like pattern decreased after treatment, whereas the resistant group showed increased chromothripsis-like patterns after the treatment. These results suggest that the chromothripsis-like pattern is associated with treatment response in MM. PMID- 29020726 TI - MergeReference: A Tool for Merging Reference Panels for HLA Imputation. AB - Recently developed computational methods allow the imputation of human leukocyte antigen (HLA) genes using intergenic single nucleotide polymorphism markers. To improve the imputation accuracy in HLA imputation, it is essential to increase the sample size and the diversity of alleles in the reference panel. Our software, MergeReference, helps achieve this goal by providing a streamlined pipeline for combining multiple reference panels into one. PMID- 29020725 TI - Genomic Analysis of miR-21-3p and Expression Pattern with Target Gene in Olive Flounder. AB - MicroRNAs (miRNAs) act as regulators of gene expression by binding to the 3' untranslated region (UTR) of target genes. They perform important biological functions in the various species. Among many miRNAs, miR-21-3p is known to serve vital functions in development and apoptosis in olive flounder. Using genomic and bioinformatic tools, evolutionary conservation of miR-21-3p was examined in various species, and expression pattern was analyzed in olive flounder. Conserved sequences (5'-CAGUCG-3') in numerous species were detected through the stem-loop structure of miR-21-3p. Thus, we analyzed target genes of miR-21-3p. Among them, 3' UTR region of PPIL2 gene indicated the highest binding affinity with miR-21-3p based on the minimum free energy value. The PPIL2 gene showed high expression levels in testis tissue of the olive flounder, whereas miR-21-3p showed rather ubiquitous expression patterns except in testis tissue, indicating that miR-21-3p seems to control the PPIL2 gene expression in a complementary repression manner in various tissues of olive flounder. Taken together, this current study contributes to infer the target gene candidates for the miR-21-3p using bioinformatics tools. Furthermore, our data offers important information on the relationship between miR-21-3p and target gene for further functional study. PMID- 29020727 TI - Practice nurses can improve insulin uptake in type 2 diabetes. PMID- 29020728 TI - Diagnosing testicular lumps in primary care. AB - Although the incidence of testicular cancer has increased over the past few decades, testicular tumours are still rare and many GPs will only see one or two new diagnoses in their career. In one UK study, out of 845 patients who had been referred with testicular lumps or pain, only 33 (4%) were diagnosed with testicular cancer. Epididymal cysts, or spermatoceles when containing sperm, were the most common finding, and were found in 228 patients (27%). The second most common finding was hydrocele, a fluid collection between the parietal and visceral layers of the tunica vaginalis, which was found in 96 patients (11%). The vast majority (95-98%) of testicular cancers are germ cell tumours. In Western Europe, five-year survival for testicular cancer is approximately 95%. It is almost 100% for stage 1 seminomas, but falls to 48% in the poorest prognostic group - non-seminomatous tumours with metastases at diagnosis.When examining scrotal swellings, the key question is whether the lump is intra- or extra testicular, as palpable intra-testicular lesions are highly likely (around 90%) to be malignant, whereas those lying outside the testis are usually benign. NICE recommends that men with non-painful enlargement or change in shape or texture of the testis should be referred via the two-week wait cancer pathway. Any painful or tender mass within the body of the testis which is not suggestive of infection should also be referred. GPs should refer patients for an urgent ultrasound if they are aged 20-40 with a hydrocele; if there is uncertainty as to whether the mass is intra-testicular or extra-testicular; or if the testis cannot be fully palpated. PMID- 29020729 TI - Diagnosing and managing androgen deficiency in men. AB - Androgens play a crucial role in bone, muscle and fat metabolism, erythropoiesis and cognitive health. In men aged 40-79 years the incidence of biochemical deficiency and symptomatic hypogonadism is 2.1-5.7%. Decreased libido or reduced frequency and quality of erections, fatigue, irritability, infertility or a diminished feeling of wellbeing may be presenting complaints. However, a significant proportion of men with androgen deficiency will be identified when they present for unrelated concerns. Important factors to elicit from the history in addition to the presenting complaint include: a medical history of obesity, type 2 diabetes, systemic diseases or metabolic syndrome which all impact on testosterone physiology. A comprehensive medical review will identify agents which can cause low testosterone levels such as statins, steroids, opioids, dopamine antagonists and 5-alpha reductase inhibitors. Alcohol, anabolic steroids and illicit substance use such as marihuana can impact on testosterone levels and non-prescribed drug use should be routinely discussed. The mainstay of treatment in persisting androgen deficiency is to restore normal physiological levels of testosterone by using exogenous testosterone. It may take at least three to six weeks to notice any clinical improvement in symptoms. Men receiving testosterone supplementation should be followed closely and have their testosterone, haematocrit and PSA levels checked at three, six and twelve months after initiation of testosterone replacement therapy. Men should then be reviewed at least annually thereafter. PMID- 29020730 TI - Palpitations: when you hear hoof beats don't forget to think zebras. AB - In general practice palpitations are reported in around 8 per 1,000 persons per year. The differential diagnosis includes cardiac and psychiatric causes, as well as numerous others e.g. anaemia, hyperthyroidism, prescribed medication, caffeine and recreational drugs. Factors that point towards a cardiac aetiology are male sex, irregular heartbeat, history of heart disease, event duration > 5 minutes, frequent palpitations, and palpitations which occur at work or disturb sleep. Other clues suggesting a cardiac origin are abrupt onset and termination of palpitations, positional palpitations, and accompanying symptoms such as dizziness and presyncope. Cardiac arrhythmias are the result of enhanced automaticity, triggered activity or re-entry. The latter mechanism is responsible for the majority of clinically relevant arrhythmias, such as atrial fibrillation and supraventricular tachycardias. The prevalence of supraventricular tachycardia in the general population is around 2-3 per 1,000 persons. AV nodal re-entry tachycardia (AVNRT) is the most common paroxysmal supraventricular tachycardia, accounting for nearly two-thirds of all cases. The typical clinical presentation of AVNRT is a sudden onset of palpitations (98%) and/or dizziness (78%). Patients may present at any age and are more frequently female than male. PMID- 29020733 TI - How Have Health Insurers Performed Financially Under the ACA' Market Rules? AB - Issue: The Affordable Care Act (ACA) transformed the market for individual health insurance, so it is not surprising that insurers' transition was not entirely smooth. Insurers, with no previous experience under these market conditions, were uncertain how to price their products. As a result, they incurred significant losses. Based on this experience, some insurers have decided to leave the ACA's subsidized market, although others appear to be thriving. Goals: Examine the financial performance of health insurers selling through the ACA's marketplace exchanges in 2015--the market's most difficult year to date. Method: Analysis of financial data for 2015 reported by insurers from 48 states and D.C. to the Centers for Medicare and Medicaid Services. Findings and Conclusions: Although health insurers were profitable across all lines of business, they suffered a 10 percent loss in 2015 on their health plans sold through the ACA's exchanges. The top quarter of the ACA exchange market was comfortably profitable, while the bottom quarter did much worse than the ACA market average. This indicates that some insurers were able to adapt to the ACA's new market rules much better than others, suggesting the ACA's new market structure is sustainable, if supported properly by administrative policy. PMID- 29020734 TI - Hey, Kids, Tobacco Can Wait. PMID- 29020735 TI - Protecting Student Athletes. Are states doing enough to keep student athletes safe from heat and head injuries? PMID- 29020731 TI - Clinical Risk Factors Influencing Dental Developmental Disturbances in Childhood Cancer Survivors. AB - Purpose: Although studies regarding dental developmental disturbances after childhood cancer treatment have increased, they have many limitations. Studies analyzing the significance of independent clinical risk factors with regard to the dental health status are also rare. We aimed to investigate the risk factors for dental developmental disturbances, particularly severe disturbances, in childhood cancer survivors (CCS). Materials and Methods: Oral examinations and retrospective reviews of medical and panoramic radiographs were performed for 196 CCS (mean age, 15.6 years). Cancer type, age at diagnosis, treatment modality, type and accumulated dose of administered drugs, and dose and site of radiation were recorded. Dental developmental disturbances were diagnosed using panoramic radiographs and graded for severity according to the Modified Dental Defect Index (MDDI). Descriptive statistics and multivariate analyseswere performed to determine the association between dental abnormalities and clinical factors. Results: In total, 109 CCS (55.6%) exhibited at least one dental anomaly, and the median value of MDDI was 2.5. Microdontia (30.6%) was the most prevalent anomaly, followed by tooth agenesis (20.4%), V-shaped roots (14.8%), and taurodontism (10.2%). Multivariate analysis revealed that a young age at diagnosis (<= 3 years), a history of hematopoietic stem cell transplantation, the use of multiple classes of chemotherapeutic agents (>= 4 classes), and the use of heavy metal agents were significant risk factors for severe dental disturbances. Conclusion: CCS with any of the above risk factors for severe developmental disturbances should be comprehensively followed up to minimize adverse consequences to their dental development and preserve their future dental health. PMID- 29020732 TI - Detection of Germline Mutations in Patients with Epithelial Ovarian Cancer Using Multi-gene Panels: Beyond BRCA1/2. AB - Purpose: Next-generation sequencing (NGS) allows simultaneous sequencing of multiple cancer susceptibility genes and may represent a more efficient and less expensive approach than sequential testing. We assessed the frequency of germline mutations in individuals with epithelial ovarian cancer (EOC), using multi-gene panels and NGS. Materials and Methods: Patients with EOC (n=117) with/without a family history of breast or ovarian cancer were recruited consecutively, from March 2016 toDecember 2016.GermlineDNAwas sequenced using 35-gene NGS panel, in order to identify mutations. Upon the detection of a genetic alteration using the panel, results were cross-validated using direct sequencing. Results: Thirty eight patients (32.5%) had 39 pathogenic or likely pathogenic mutations in eight genes, including BRCA1 (n=21), BRCA2 (n=10), BRIP1 (n=1), CHEK2 (n=2), MSH2 (n=1), POLE (n=1), RAD51C (n=2), and RAD51D (n=2). Among 64 patients with a family history of cancer, 27 (42.2%) had 27 pathogenic or likely pathogenic mutations, and six (9.3%) had mutations in genes other than BRCA1/2, such as CHECK2, MSH2, POLE, and RAD51C. Fifty-five patients (47.0%) were identified to carry only variants of uncertain significance. Conclusion: Using the multi-gene panel test, we found that, of all patients included in our study, 32.5% had germline cancer-predisposing mutations. NGS was confirmed to substantially improve the detection rates of a wide spectrum of mutations in EOC patients compared with those obtained with the BRCA1/2 testing alone. PMID- 29020738 TI - Changing the editorial crew at the IJE. PMID- 29020737 TI - [Biogenesis and functions of piRNAs in the reproductive system of male mice]. AB - PIWI-interacting RNAs (piRNAs) are a class of small non-coding RNAs of 24-32 nucleotides (nt) in length, which were first found in 2006. The piRNAs in germ cells interact with reproduction-specific PIWI proteins and play an important role in the development of the reproductive system. In the reproductive system of the male mouse, piRNAs arise from long single stranded precursor transcripts expressed in discrete genomic regions. The productions of piRNAs are termed primary piRNA biogenesis and secondary piRNA biogenesis. Mature piRNAs can silence the genome instability threat posed by mobile genetic elements called transposons. Furthermore, piRNAs regulate the expression of mRNAs transcriptionally and post-transcriptionally in spermiogenesis. This review summarizes the biogenesis and key functions of piRNAs in the reproductive system of male mice. PMID- 29020736 TI - [Influence of thyroid dysfunction on male sexual and reproductive functions and its mechanisms]. AB - Thyroid dysfunction may affect the body growth metabolism and the synthesis and secretion of sex steroids. A large number of clinical and basic studies suggest that thyroid hormone abnormality can cause sexual and reproductive problems. Patients with hyperthyroidism or hypothyroidism may develop not only premature ejaculation but also erectile dysfunction. The thyroid hormone level also influences Leydig cells, Sertoli cells, and spermatogenesis. This review focuses on the association of thyroid dysfunction with male premature ejaculation, erectile dysfunction, and infertility and its mechanisms. PMID- 29020739 TI - Which is worse? A comparison of ART outcome between women with primary or recurrent endometriomas. PMID- 29020742 TI - Bayes Forest: a data-intensive generator of morphological tree clones. AB - Detailed and realistic tree form generators have numerous applications in ecology and forestry. For example, the varying morphology of trees contributes differently to formation of landscapes, natural habitats of species, and eco physiological characteristics of the biosphere. Here, we present an algorithm for generating morphological tree "clones" based on the detailed reconstruction of the laser scanning data, statistical measure of similarity, and a plant growth model with simple stochastic rules. The algorithm is designed to produce tree forms, i.e., morphological clones, similar (and not identical) in respect to tree level structure, but varying in fine-scale structural detail. Although we opted for certain choices in our algorithm, individual parts may vary depending on the application, making it a general adaptable pipeline. Namely, we showed that a specific multipurpose procedural stochastic growth model can be algorithmically adjusted to produce the morphological clones replicated from the target experimentally measured tree. For this, we developed a statistical measure of similarity (structural distance) between any given pair of trees, which allows for the comprehensive comparing of the tree morphologies by means of empirical distributions describing the geometrical and topological features of a tree. Finally, we developed a programmable interface to manipulate data required by the algorithm. Our algorithm can be used in a variety of applications for exploration of the morphological potential of the growth models (both theoretical and experimental), arising in all sectors of plant science research. PMID- 29020740 TI - Positive and relaxed selection associated with flight evolution and loss in insect transcriptomes. AB - The evolution of powered flight is a major innovation that has facilitated the success of insects. Previously, studies of birds, bats, and insects have detected molecular signatures of differing selection regimes in energy-related genes associated with flight evolution and/or loss. Here, using DNA sequences from more than 1000 nuclear and mitochondrial protein-coding genes obtained from insect transcriptomes, we conduct a broader exploration of which gene categories display positive and relaxed selection at the origin of flight as well as with multiple independent losses of flight. We detected a number of categories of nuclear genes more often under positive selection in the lineage leading to the winged insects (Pterygota), related to catabolic processes such as proteases, as well as splicing-related genes. Flight loss was associated with relaxed selection signatures in splicing genes, mirroring the results for flight evolution. Similar to previous studies of flight loss in various animal taxa, we observed consistently higher nonsynonymous-to-synonymous substitution ratios in mitochondrial genes of flightless lineages, indicative of relaxed selection in energy-related genes. While oxidative phosphorylation genes were not detected as being under selection with the origin of flight specifically, they were most often detected as being under positive selection in holometabolous (complete metamorphosis) insects as compared with other insect lineages. This study supports some convergence in gene-specific selection pressures associated with flight ability, and the exploratory analysis provided some new insights into gene categories potentially associated with the gain and loss of flight in insects. PMID- 29020741 TI - The sponge microbiome project. AB - Marine sponges (phylum Porifera) are a diverse, phylogenetically deep-branching clade known for forming intimate partnerships with complex communities of microorganisms. To date, 16S rRNA gene sequencing studies have largely utilised different extraction and amplification methodologies to target the microbial communities of a limited number of sponge species, severely limiting comparative analyses of sponge microbial diversity and structure. Here, we provide an extensive and standardised dataset that will facilitate sponge microbiome comparisons across large spatial, temporal, and environmental scales. Samples from marine sponges (n = 3569 specimens), seawater (n = 370), marine sediments (n = 65) and other environments (n = 29) were collected from different locations across the globe. This dataset incorporates at least 268 different sponge species, including several yet unidentified taxa. The V4 region of the 16S rRNA gene was amplified and sequenced from extracted DNA using standardised procedures. Raw sequences (total of 1.1 billion sequences) were processed and clustered with (i) a standard protocol using QIIME closed-reference picking resulting in 39 543 operational taxonomic units (OTU) at 97% sequence identity, (ii) a de novo clustering using Mothur resulting in 518 246 OTUs, and (iii) a new high-resolution Deblur protocol resulting in 83 908 unique bacterial sequences. Abundance tables, representative sequences, taxonomic classifications, and metadata are provided. This dataset represents a comprehensive resource of sponge associated microbial communities based on 16S rRNA gene sequences that can be used to address overarching hypotheses regarding host-associated prokaryotes, including host specificity, convergent evolution, environmental drivers of microbiome structure, and the sponge-associated rare biosphere. PMID- 29020743 TI - Development and validation of a multi-locus DNA metabarcoding method to identify endangered species in complex samples. AB - DNA metabarcoding provides great potential for species identification in complex samples such as food supplements and traditional medicines. Such a method would aid Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) enforcement officers to combat wildlife crime by preventing illegal trade of endangered plant and animal species. The objective of this research was to develop a multi-locus DNA metabarcoding method for forensic wildlife species identification and to evaluate the applicability and reproducibility of this approach across different laboratories. A DNA metabarcoding method was developed that makes use of 12 DNA barcode markers that have demonstrated universal applicability across a wide range of plant and animal taxa and that facilitate the identification of species in samples containing degraded DNA. The DNA metabarcoding method was developed based on Illumina MiSeq amplicon sequencing of well-defined experimental mixtures, for which a bioinformatics pipeline with user friendly web-interface was developed. The performance of the DNA metabarcoding method was assessed in an international validation trial by 16 laboratories, in which the method was found to be highly reproducible and sensitive enough to identify species present in a mixture at 1% dry weight content. The advanced multi-locus DNA metabarcoding method assessed in this study provides reliable and detailed data on the composition of complex food products, including information on the presence of CITES-listed species. The method can provide improved resolution for species identification, while verifying species with multiple DNA barcodes contributes to an enhanced quality assurance. PMID- 29020744 TI - fastBMA: scalable network inference and transitive reduction. AB - Inferring genetic networks from genome-wide expression data is extremely demanding computationally. We have developed fastBMA, a distributed, parallel, and scalable implementation of Bayesian model averaging (BMA) for this purpose. fastBMA also includes a computationally efficient module for eliminating redundant indirect edges in the network by mapping the transitive reduction to an easily solved shortest-path problem. We evaluated the performance of fastBMA on synthetic data and experimental genome-wide time series yeast and human datasets. When using a single CPU core, fastBMA is up to 100 times faster than the next fastest method, LASSO, with increased accuracy. It is a memory-efficient, parallel, and distributed application that scales to human genome-wide expression data. A 10 000-gene regulation network can be obtained in a matter of hours using a 32-core cloud cluster (2 nodes of 16 cores). fastBMA is a significant improvement over its predecessor ScanBMA. It is more accurate and orders of magnitude faster than other fast network inference methods such as the 1 based on LASSO. The improved scalability allows it to calculate networks from genome scale data in a reasonable time frame. The transitive reduction method can improve accuracy in denser networks. fastBMA is available as code (M.I.T. license) from GitHub (https://github.com/lhhunghimself/fastBMA), as part of the updated networkBMA Bioconductor package (https://www.bioconductor.org/packages/release/bioc/html/networkBMA.html) and as ready-to-deploy Docker images (https://hub.docker.com/r/biodepot/fastbma/). PMID- 29020745 TI - Transcriptional mapping of the primary somatosensory cortex upon sensory deprivation. AB - Experience-dependent plasticity (EDP) is essential for anatomical and functional maturation of sensory circuits during development. Although the principal synaptic and circuit mechanisms of EDP are increasingly well studied experimentally and computationally, its molecular mechanisms remain largely elusive. EDP can be readily studied in the rodent barrel cortex, where each "barrel column" preferentially represents deflections of its own principal whisker. Depriving select whiskers while sparing their neighbours introduces competition between barrel columns, ultimately leading to weakening of intracortical, translaminar (i.e., cortical layer (L)4-to-L2/3) feed-forward excitatory projections in the deprived columns. The same synapses are potentiated in the neighbouring spared columns. These experience-dependent alterations of synaptic strength are thought to underlie somatosensory map plasticity. We used RNA sequencing in this model system to uncover cortical-column and -layer specific changes on the transcriptome level that are induced by altered sensory experience. Column- and layer-specific barrel cortical tissues were collected from juvenile mice with all whiskers intact and mice that received 11-12 days of long whisker (C-row) deprivation before high-quality RNA was purified and sequenced. The current dataset entails an average of 50 million paired-end reads per sample, 75 base pairs in length. On average, 90.15% of reads could be uniquely mapped to the mm10 reference mouse genome. The current data reveal the transcriptional changes in gene expression in the barrel cortex upon altered sensory experience in juvenile mice and will help to molecularly map the mechanisms of cortical plasticity. PMID- 29020746 TI - Proteomic landscape of the primary somatosensory cortex upon sensory deprivation. AB - Experience-dependent plasticity (EDP) powerfully shapes neural circuits by inducing long-lasting molecular changes in the brain. Molecular mechanisms of EDP have been traditionally studied by identifying single or small subsets of targets along the biochemical pathways that link synaptic receptors to nuclear processes. Recent technological advances in large-scale analysis of gene transcription and translation now allow systematic observation of thousands of molecules simultaneously. Here we employed label-free quantitative mass spectrometry to address experience-dependent changes in the proteome after sensory deprivation of the primary somatosensory cortex. Cortical column- and layer-specific tissue samples were collected from control animals, with all whiskers intact, and animals whose C-row whiskers were bilaterally plucked for 11-14 days. Thirty three samples from cortical layers (L) 2/3 and L4 spanning across control, deprived, and first- and second-order spared columns yielded at least 10 000 peptides mapping to ~5000 protein groups. Of these, 4676 were identified with high confidence, and >3000 were found in all samples. This comprehensive database provides a snapshot of the proteome after whisker deprivation, a protocol that has been widely used to unravel the synaptic, cellular, and network mechanisms of EDP. Complementing the recently made available transcriptome for identical experimental conditions (see the accompanying article by Kole et al.), the database can be used to (i) mine novel targets whose translation is modulated by sensory organ use, (ii) cross-validate experimental protocols from the same developmental time point, and (iii) statistically map the molecular pathways of cortical plasticity at a columnar and laminar resolution. PMID- 29020747 TI - Deep machine learning provides state-of-the-art performance in image-based plant phenotyping. AB - In plant phenotyping, it has become important to be able to measure many features on large image sets in order to aid genetic discovery. The size of the datasets, now often captured robotically, often precludes manual inspection, hence the motivation for finding a fully automated approach. Deep learning is an emerging field that promises unparalleled results on many data analysis problems. Building on artificial neural networks, deep approaches have many more hidden layers in the network, and hence have greater discriminative and predictive power. We demonstrate the use of such approaches as part of a plant phenotyping pipeline. We show the success offered by such techniques when applied to the challenging problem of image-based plant phenotyping and demonstrate state-of-the-art results (>97% accuracy) for root and shoot feature identification and localization. We use fully automated trait identification using deep learning to identify quantitative trait loci in root architecture datasets. The majority (12 out of 14) of manually identified quantitative trait loci were also discovered using our automated approach based on deep learning detection to locate plant features. We have shown deep learning-based phenotyping to have very good detection and localization accuracy in validation and testing image sets. We have shown that such features can be used to derive meaningful biological traits, which in turn can be used in quantitative trait loci discovery pipelines. This process can be completely automated. We predict a paradigm shift in image-based phenotyping bought about by such deep learning approaches, given sufficient training sets. PMID- 29020748 TI - Combining semi-automated image analysis techniques with machine learning algorithms to accelerate large-scale genetic studies. AB - Genetic analyses of plant root systems require large datasets of extracted architectural traits. To quantify such traits from images of root systems, researchers often have to choose between automated tools (that are prone to error and extract only a limited number of architectural traits) or semi-automated ones (that are highly time consuming). We trained a Random Forest algorithm to infer architectural traits from automatically extracted image descriptors. The training was performed on a subset of the dataset, then applied to its entirety. This strategy allowed us to (i) decrease the image analysis time by 73% and (ii) extract meaningful architectural traits based on image descriptors. We also show that these traits are sufficient to identify the quantitative trait loci that had previously been discovered using a semi-automated method. We have shown that combining semi-automated image analysis with machine learning algorithms has the power to increase the throughput of large-scale root studies. We expect that such an approach will enable the quantification of more complex root systems for genetic studies. We also believe that our approach could be extended to other areas of plant phenotyping. PMID- 29020751 TI - Erratum to: Genome sequence of a rice pest, the white-backed planthopper (Sogatella furcifera). PMID- 29020749 TI - The draft genome assembly of Rhododendron delavayi Franch. var. delavayi. AB - Rhododendron delavayi Franch. is globally famous as an ornamental plant. Its distribution in southwest China covers several different habitats and environments. However, not much research had been conducted on Rhododendron spp. at the molecular level, which hinders understanding of its evolution, speciation, and synthesis of secondary metabolites, as well as its wide adaptability to different environments. Here, we report the genome assembly and gene annotation of R. delavayi var. delavayi (the second genome sequenced in the Ericaceae), which will facilitate the study of the family. The genome assembly will have further applications in genome-assisted cultivar breeding. The final size of the assembled R. delavayi var. delavayi genome (695.09 Mb) was close to the 697.94 Mb, estimated by k-mer analysis. A total of 336.83 gigabases (Gb) of raw Illumina HiSeq 2000 reads were generated from 9 libraries (with insert sizes ranging from 170 bp to 40 kb), achieving a raw sequencing depth of *482.6. After quality filtering, 246.06 Gb of clean reads were obtained, giving *352.55 coverage depth. Assembly using Platanus gave a total scaffold length of 695.09 Mb, with a contig N50 of 61.8 kb and a scaffold N50 of 637.83 kb. Gene prediction resulted in the annotation of 32 938 protein-coding genes. The genome completeness was evaluated by CEGMA and BUSCO and reached 95.97% and 92.8%, respectively. The gene annotation completeness was also evaluated by CEGMA and BUSCO and reached 97.01% and 87.4%, respectively. Genome annotation revealed that 51.77% of the R. delavayi genome is composed of transposable elements, and 37.48% of long terminal repeat elements (LTRs). The de novo assembled genome of R. delavayi var. delavayi (hereinafter referred to as R. delavayi) is the second genomic resource of the family Ericaceae and will provide a valuable resource for research on future comparative genomic studies in Rhododendron species. The availability of the R. delavayi genome sequence will hopefully provide a tool for scientists to tackle open questions regarding molecular mechanisms underlying environmental interactions in the genus Rhododendron, more accurately understand the evolutionary processes and systematics of the genus, facilitate the identification of genes encoding pharmaceutically important compounds, and accelerate molecular breeding to release elite varieties. PMID- 29020752 TI - Erratum to: Draft genome of the sea cucumber Apostichopus japonicus and genetic polymorphism among color variants. PMID- 29020750 TI - De novo PacBio long-read and phased avian genome assemblies correct and add to reference genes generated with intermediate and short reads. AB - Reference-quality genomes are expected to provide a resource for studying gene structure, function, and evolution. However, often genes of interest are not completely or accurately assembled, leading to unknown errors in analyses or additional cloning efforts for the correct sequences. A promising solution is long-read sequencing. Here we tested PacBio-based long-read sequencing and diploid assembly for potential improvements to the Sanger-based intermediate-read zebra finch reference and Illumina-based short-read Anna's hummingbird reference, 2 vocal learning avian species widely studied in neuroscience and genomics. With DNA of the same individuals used to generate the reference genomes, we generated diploid assemblies with the FALCON-Unzip assembler, resulting in contigs with no gaps in the megabase range, representing 150-fold and 200-fold improvements over the current zebra finch and hummingbird references, respectively. These long-read and phased assemblies corrected and resolved what we discovered to be numerous misassemblies in the references, including missing sequences in gaps, erroneous sequences flanking gaps, base call errors in difficult-to-sequence regions, complex repeat structure errors, and allelic differences between the 2 haplotypes. These improvements were validated by single long-genome and transcriptome reads and resulted for the first time in completely resolved protein-coding genes widely studied in neuroscience and specialized in vocal learning species. These findings demonstrate the impact of long reads, sequencing of previously difficult-to-sequence regions, and phasing of haplotypes on generating the high-quality assemblies necessary for understanding gene structure, function, and evolution. PMID- 29020753 TI - Erratum to: Morphometric analysis of Passiflora leaves: the relationship between landmarks of the vasculature and elliptical Fourier descriptors of the blade. AB - Background: Leaf shape among Passiflora species is spectacularly diverse. Underlying this diversity in leaf shape are profound changes in the patterning of the primary vasculature and laminar outgrowth. Each of these aspects of leaf morphology-vasculature and blade-provides different insights into leaf patterning. Results: Here, we morphometrically analyze >3300 leaves from 40 different Passiflora species collected sequentially across the vine. Each leaf is measured in two different ways: using 1) 15 homologous Procrustes-adjusted landmarks of the vasculature, sinuses, and lobes; and 2) Elliptical Fourier Descriptors (EFDs), which quantify the outline of the leaf. The ability of landmarks, EFDs, and both datasets together are compared to determine their relative ability to predict species and node position within the vine. Pairwise correlation of x and y landmark coordinates and EFD harmonic coefficients reveals close associations between traits and insights into the relationship between vasculature and blade patterning. Conclusions: Landmarks, more reflective of the vasculature, and EFDs, more reflective of the blade contour, describe both similar and distinct features of leaf morphology. Landmarks and EFDs vary in ability to predict species identity and node position in the vine and exhibit a correlational structure (both within landmark or EFD traits and between the two data types) revealing constraints between vascular and blade patterning underlying natural variation in leaf morphology among Passiflora species. PMID- 29020754 TI - Erratum to: The genome of the Antarctic-endemic copepod, Tigriopus kingsejongensis. PMID- 29020755 TI - Erratum to: An improved assembly of the loblolly pine mega-genome using long-read single-molecule sequencing. AB - The 22-gigabase genome of loblolly pine (Pinus taeda) is one of the largest ever sequenced. The draft assembly published in 2014 was built entirely from short Illumina reads, with lengths ranging from 100 to 250 base pairs (bp). The assembly was quite fragmented, containing over 11 million contigs whose weighted average (N50) size was 8206 bp. To improve this result, we generated approximately 12-fold coverage in long reads using the Single Molecule Real Time sequencing technology developed at Pacific Biosciences. We assembled the long and short reads together using the MaSuRCA mega-reads assembly algorithm, which produced a substantially better assembly, P. taeda version 2.0. The new assembly has an N50 contig size of 25 361, more than three times as large as achieved in the original assembly, and an N50 scaffold size of 107 821, 61% larger than the previous assembly. PMID- 29020756 TI - Using Focus Group Interviews to Analyze the Behavior of Users of New Types of Tobacco Products. AB - Objectives: To characterize the usage patterns of new types of tobacco products (NTTPs) to develop effective strategies for the regulation of NTTPs in Korea. Methods: We conducted focus group interviews to identify the NTTP usage patterns of research subjects. The NTTPs were limited to electronic cigarettes (e cigarettes), waterpipe tobacco, and rolling tobacco. We categorized 30 research subjects into 4 groups. The e-cigarette group was divided into adult and adolescent groups. Each group contained 7-8 subjects. An interview lasting approximately 2 hours was conducted with each group. Results: Ninety percent of NTTP users used an NTTP in combination with conventional cigarettes. Subjects mostly bought NTTPs online, unlike how they bought cigarettes. Additionally, a great deal of information, such as how to use NTTPs and descriptions of NTTP products, was exchanged through online or offline societies. The primary reason why the subjects used NTTPs was that NTTPs offer a greater range of flavors and aromas than cigarettes. Moreover, NTTPs were felt to be less repulsive than cigarettes. NTTPs were not used as a cigarette substitute; rather, they were mostly used in places and situations where traditional cigarette smoking was not allowed. Conclusions: Based on the results of this study, the government should conduct studies on the effects of the combined use of NTTPs and cigarettes on the human body, obtain and provide accurate data regarding NTTP use, and develop and implement polices to ban NTTP advertising, which may arouse adolescents' curiosity, and the addition of flavoring substances to tobacco products. PMID- 29020757 TI - Housing Conditions Contribute to Underweight in Children: An Example From Rural Villages in Southeast Sulawesi, Indonesia. AB - Objectives: The prevalence of underweight in children under 5 years of age is anomalously high in Konawe District, Southeast Sulawesi Province, Indonesia. This state of affairs may be related to poor housing conditions, such as limited access to clean water, the absence of a sanitary latrine, and the use of poor housing materials. Therefore, this study aimed to examine the effect of housing conditions on underweight in under-5 children in Konawe District. Methods: This study was conducted in 2013 in 5 health centres in Konawe District, Southeast Sulawesi Province, and used a case-control study design. The study recruited 400 under-5 children, including 100 of whom were cases and 300 of whom were age matched controls (1:3). Cases were underweight children, while the controls were children with a normal nutritional status. The independent variables were the availability and types of water and latrine facilities and housing materials (roof, wall, and floor). The statistical analysis used Cox regression. Results: A lack of water availability (odds ratio [OR], 5.0; 95% confidence interval [CI], 2.7 to 9.5; p<0.001), a lack of latrine availability in the home (OR, 2.5; 95% CI, 1.5 to 4.0; p<0.001), and poor-quality roofing materials (OR, 1.7; 95% CI, 1.1 to 2.7; p<0.02) significantly contributed to underweight in children. In contrast, the walls and the floors did not contribute to under-5 year children being underweight (p=0.09 and p=0.71, respectively). Conclusions: Sanitation facilities and roofing were identified as important factors to address in order to improve children's nutritional status. Children's health status was directly impacted by food intake via their nutritional status. PMID- 29020758 TI - High Level Physical Activity and Prevalence of Cardiovascular Disease Using the Korea National Health and Nutrition Examination Survey Data, 2007-2013. AB - Objectives: The purpose of our study was to evaluate the association between the intensity of physical activity (PA) and prevalence of cardiovascular disease (CVD) using Korean representative data. Methods: We analyzed 39 804 participant data from the Korea National Health and Nutrition Examination Survey, 2007-2013. Exposure variable was three levels of PA (low, medium, and high) in a week, and outcome variable was prevalence of CVD based on patient self-recognition and doctor's diagnosis. Complex logistic regression analysis was performed to evaluate the relationship between level of PA and CVD adjusted by body mass index, hypertension, hypercholesterolemia, diabetes mellitus, stress recognition, household income, smoking, and current drinking. The indices of association w ere estimated as crude prevalence odds ratio (POR), adjusted POR, and their 95% confidence interval (CI). All statistical analyzes were performed using complex sample analysis procedure of the SPSS version 23.0. Results: When all variables were adjusted, only high level PA in women showed a significant association with stroke (adjusted POR by patient's self-recognition, 0.57; 95% CI, 0.32 to 0.99, adjusted POR by doctor's diagnosis, 0.55; 95% CI, 0.34 to 0.87) and CVD (adjusted POR by doctor's diagnosis, 0.68; 95% CI, 0.48 to 0.96). Conclusions: High level PA in women has a significant reverse association with prevalence of stroke and CVD in Korea. Further study for elucidating the mechanism will be needed. PMID- 29020759 TI - Hazardous Alcohol Use in 2 Countries: A Comparison Between Alberta, Canada and Queensland, Australia. AB - Objectives: This article aimed to compare alcohol consumption between the populations of Queensland in Australia and Alberta in Canada. Furthermore, the associations between greater alcohol consumption and socio-demographic characteristics were explored in each population. Methods: Data from 2500 participants of the 2013 Alberta Survey and the 2013 Queensland Social Survey were analyzed. Regression analyses were used to explore the associations between alcohol risk and socio-demographic characteristics. Results: A higher rate of hazardous alcohol use was found in Queenslanders than in Albertans. In both Albertans and Queenslanders, hazardous alcohol use was associated with being between 18 and 24 years of age. Higher income, having no religion, living alone, and being born in Canada were also associated with alcohol risk in Albertans; while in Queenslanders, hazardous alcohol use was also associated with common-law marital status. In addition, hazardous alcohol use was lower among respondents with a non-Catholic or Protestant religious affiliation. Conclusions: Younger age was associated with greater hazardous alcohol use in both populations. In addition, different socio-demographic factors were associated with hazardous alcohol use in each of the populations studied. Our results allowed us to identify the socio-demographic profiles associated with hazardous alcohol use in Alberta and Queensland. These profiles constitute valuable sources of information for local health authorities and policymakers when designing suitable preventive strategies targeting hazardous alcohol use. Overall, the present study highlights the importance of analyzing the socio-demographic factors associated with alcohol consumption in population-specific contexts. PMID- 29020760 TI - Socioeconomic Inequalities in the Oral Health of People Aged 15-40 Years in Kurdistan, Iran in 2015: A Cross-sectional Study. AB - Objectives: The aim of this study was to evaluate socioeconomic inequalities in the prevalence of dental caries among an urban population. Methods: This study was conducted among 2000 people 15-40 years of age living in Kurdistan, Iran in 2015. Using a questionnaire, data were collected by 4 trained dental students. The dependent variable was the decayed, missing, and filled teeth (DMF) index. Using principal component analysis, the socioeconomic status (SES) of families was determined based on their household assets. Inequality was measured using the concentration index; in addition, the Oaxaca analytical method was used to determine the contribution of various determinants to the observed inequality. Results: The concentration index for poor scores on the DMF index was -0.32 (95% confidence interval [CI], -0.40 to -0.36); thus, poor DMF indices had a greater concentration in groups with a low SES (p<0.001). Decomposition analysis showed that the mean prevalence of a poor DMF index was 43.7% (95% CI, 40.4 to 46.9%) in the least privileged group and 14.4% (95% CI, 9.5 to 9.2%) in the most privileged group. It was found that 85.8% of the gap observed between these groups was due to differences in sex, parents' education, and the district of residence. A poor DMF index was less prevalent among people with higher SES than among those with lower SES (odds ratio, 0.31; 95% CI, 0.19 to 0.52). Conclusions: An alarming degree of SES inequality in oral health status was found in the studied community. Hence, it is suggested that inequalities in oral health status be reduced via adopting appropriate policies such as the delivery of oral health services to poorer groups and covering such services in insurance programs. PMID- 29020761 TI - Level of Agreement and Factors Associated With Discrepancies Between Nationwide Medical History Questionnaires and Hospital Claims Data. AB - Objectives: The objectives of this study were to investigate the agreement between medical history questionnaire data and claims data and to identify the factors that were associated with discrepancies between these data types. Methods: Data from self-reported questionnaires that assessed an individual's history of hypertension, diabetes mellitus, dyslipidemia, stroke, heart disease, and pulmonary tuberculosis were collected from a general health screening database for 2014. Data for these diseases were collected from a healthcare utilization claims database between 2009 and 2014. Overall agreement, sensitivity, specificity, and kappa values were calculated. Multiple logistic regression analysis was performed to identify factors associated with discrepancies and was adjusted for age, gender, insurance type, insurance contribution, residential area, and comorbidities. Results: Agreement was highest between questionnaire data and claims data based on primary codes up to 1 year before the completion of self-reported questionnaires and was lowest for claims data based on primary and secondary codes up to 5 years before the completion of self-reported questionnaires. When comparing data based on primary codes up to 1 year before the completion of self-reported questionnaires, the overall agreement, sensitivity, specificity, and kappa values ranged from 93.2 to 98.8%, 26.2 to 84.3%, 95.7 to 99.6%, and 0.09 to 0.78, respectively. Agreement was excellent for hypertension and diabetes, fair to good for stroke and heart disease, and poor for pulmonary tuberculosis and dyslipidemia. Women, younger individuals, and employed individuals were most likely to under-report disease. Conclusions: Detailed patient characteristics that had an impact on information bias were identified through the differing levels of agreement. PMID- 29020762 TI - A Survival Analysis of Gastric or Colorectal Cancer Patients Treated With Surgery: Comparison of Capital and a Non-capital City. AB - Objectives: The objective of the present study was to compare prognosis of patients with gastric or colorectal cancer according to places where they received surgeries. Methods: The cancer patients underwent surgeries in sampled hospitals located in Daegu were matched 1:1 to the patients who visited sampled hospitals in Seoul using propensity score method. After the occurrences of death were examined, Kaplan-Meier method was used for survival analysis and the log rank test was performed to compare the survival curves. Results: A total of six out of 291 gastric cancer patients who had surgeries in Daegu died (2.1%) and ten deaths (3.4%) occurred from patients went Seoul hospitals. Out of 84 gastric cancer patients who had chemotherapy after surgeries in Daegu, 13 (15.5%) patients died while 18 (21.4%) deaths occurred among patients underwent surgeries in Seoul. Six deaths (6.9%) out of 87 colorectal cancer patients who had surgeries in Daegu were reported. Five patients (5.7%) died among the patients underwent surgeries in Seoul. Among the colorectal cancer patients with chemotherapy after surgeries, 13 patients (12.4%) who visited hospitals in Daegu and 14 (13.3%) patients who used medical centers in Seoul died. There were no significant differences according to places where patients used medical services. Conclusions: The result of this study is expected to be used as basic data for policy making to resolve centralization problem of cancer patients and to help patients to make rational choices in selection of medical centers. PMID- 29020763 TI - Efficacy of Precut Endoscopic Mucosal Resection for Treatment of Rectal Neuroendocrine Tumors. AB - BACKGROUND/AIMS: Endoscopic resection is the first-line treatment for rectal neuroendocrine tumors (NETs) measuring <1 cm and those between 1 and 2 cm in size. However, conventional endoscopic resection cannot achieve complete resection in all cases. We aimed to analyze clinical outcomes of precut endoscopic mucosal resection (EMR-P) used for the management of rectal NET. METHODS: EMR-P was used to treat rectal NET in 72 patients at a single tertiary center between 2011 and 2015. Both, circumferential precutting and EMR were performed with the same snare device in all patients. Demographics, procedural details, and histopathological features were reviewed for all cases. RESULTS: Mean size of the tumor measured endoscopically was 6.8+/-2.8 mm. En bloc and complete resection was achieved in 71 (98.6%) and 67 patients (93.1%), respectively. The mean time required for resection was 9.0+/-5.6 min. Immediate and delayed bleeding developed in six (8.3%) and 4 patients (5.6%), respectively. Immediate bleeding observed during EMR-P was associated with the risk of delayed bleeding. CONCLUSIONS: Both, the en bloc and complete resection rates of EMR-P in the treatment of rectal NETs using the same snare for precutting and EMR were noted to be high. The procedure was short and safe. EMR-P may be a good treatment choice for the management of rectal NETs. PMID- 29020764 TI - Incidence and risk factors for tenofovir-associated nephrotoxicity among human immunodeficiency virus-infected patients in Korea. AB - Background/Aims: Little is known about tenofovir disoproxil fumarate (TDF) induced nephrotoxicity in human immunodeficiency virus (HIV)-infected patients in Korea. The objective of this study was to evaluate the incidence and risk factors of TDF-associated nephrotoxicity among HIV-infected patients in Korea. Methods: A single-center retrospective cohort study was conducted on HIVinfected patients in Korea. We included patients who had started TDF or abacavir (ABC)-based antiretroviral therapy (ART) between October 2006 and December 2014. Estimated glomerular filtration rate (eGFR) was estimated using the Chronic Kidney Disease Epidemiology Collaboration equation. Renal dysfunction was defined as > 25% decrease of baseline eGFR. A propensity matched case-control study was conducted to compare renal dysfunction rates between the two groups. The risk factors of nephrotoxicity were analyzed by Cox regression analysis. Results: A total of 210 HIV-infected patients were included in the study, of which, 108 were TDF-based ART group and 102 were ABC-based ART group. Renal dysfunction occurred in 16 patients (14.8%) in the TDF group and 11 (10.8%) in the ABC group. Incidence of renal dysfunction of TDF and ABC group was 9.66 per 100 person-years (PYs) and 5.14 per 100 PYs, respectively (p = 0.176). In propensityscore-matched analysis, renal dysfunction rates were TDF 13.3% versus ABC 13.3% (p > 0.999). In multivariable analysis, Centers for Disease Control and Prevention clinical category C was a significant risk factor for renal dysfunction. Conclusions: Approximately, 13% of HIV-infected patients treated with TDF had renal dysfunction. Advanced stage of HIV infection was a significant risk factor for renal dysfunction. PMID- 29020765 TI - Insulin resistance is an independent predictor of erectile dysfunction in patients with gout. AB - Background/Aims: Gout is associated with metabolic disorders that are important risk factors for cardiovascular disease and erectile dysfunction (ED). We aimed to identify independent predictors of ED in patients with gout. Methods: From August 2014 to August 2015, male outpatients who were being treated for gout in our rheumatology clinic and healthy males without any history of inflammatory disease (control group) were studied. ED was assessed in participants using the five-item version of the International Index of Erectile Function questionnaire. Insulin resistance (IR) was estimated using the homeostatic model assessment (HOMA-IR). Logistic regression analysis was performed to determine the effect of variables on ED risk in all of the study subjects and in patients with gout. Results: We analyzed 80 patients with gout and 70 healthy controls. The median age of patients with gout was 52 years and median disease duration was 120 months. Gout patients were more likely to have ED than controls (55.3% vs. 41.4%, p < 0.047). After adjustment for confounding factors, only HOMA-IR was significantly associated with ED (odds ratio [OR], 1.82; 95% confidence interval [CI], 1.05 to 3.15). Gout patients with ED were more likely to be older (p < 0.001), have higher HOMA-IR (p = 0.048), and have lower glomerular filtration rate (p = 0.038) than those without ED. Multivariate logistic regression analysis showed that HOMAIR was an independent predictor for ED (OR, 1.62; 95% CI, 1.03 to 2.82) in gout patients. Conclusions: IR is an independent predictor of ED in patients with gout. PMID- 29020766 TI - Multivalent Presentation of Cationic Peptides on Supramolecular Nanofibers for Antimicrobial Activity. AB - Noncovalent and electrostatic interactions facilitate the formation of complex networks through molecular self-assembly in biomolecules such as proteins and glycosaminoglycans. Self-assembling peptide amphiphiles (PA) are a group of molecules that can form nanofibrous structures and may contain bioactive epitopes to interact specifically with target molecules. Here, we report the presentation of cationic peptide sequences on supramolecular nanofibers formed by self assembling peptide amphiphiles for cooperative enhanced antibacterial activity. Antibacterial properties of self-assembled peptide nanofibers were significantly higher than soluble peptide molecules with identical amino acid sequences, suggesting that the tandem presentation of bioactive epitopes is important for designing new materials for bactericidal activity. In addition, bacteria were observed to accumulate more rapidly on peptide nanofibers compared to soluble peptides, which may further enhance antibacterial activity by increasing the number of peptide molecules interacting with the bacterial membrane. The cationic peptide amphiphile nanofibers were observed to attach to bacterial membranes and disrupt their integrity. These results demonstrate that short cationic peptides show a significant improvement in antibacterial activity when presented in the nanofiber form. PMID- 29020768 TI - Visible-Light-Driven Valorization of Biomass Intermediates Integrated with H2 Production Catalyzed by Ultrathin Ni/CdS Nanosheets. AB - Photocatalytic upgrading of crucial biomass-derived intermediate chemicals (i.e., furfural alcohol, 5-hydroxymethylfurfural (HMF)) to value-added products (aldehydes and acids) was carried out on ultrathin CdS nanosheets (thickness ~1 nm) decorated with nickel (Ni/CdS). More importantly, simultaneous H2 production was realized upon visible light irradiation under ambient conditions utilizing these biomass intermediates as proton sources. The remarkable difference in the rates of transformation of furfural alcohol and HMF to their corresponding aldehydes in neutral water was observed and investigated. Aided by theoretical computation, it was rationalized that the slightly stronger binding affinity of the aldehyde group in HMF to Ni/CdS resulted in the lower transformation of HMF to 2,5-diformylfuran compared to that of furfural alcohol to furfural. Nevertheless, photocatalytic oxidation of furfural alcohol and HMF under alkaline conditions led to complete transformation to the respective carboxylates with concomitant production of H2. PMID- 29020769 TI - Cofacially Arrayed Polyfluorenes: Spontaneous Formation of pi-Stacked Assemblies in the Gas Phase. AB - Understanding geometrical and size dependencies of through-space charge delocalization in multichromophoric systems is critical to model electron transfer and transport in materials and biomolecules. In this work, we examine the size evolution of hole delocalization in van der Waals clusters of fluorene (i.e., (F)n), where a range of geometries are possible, reflecting both pi stacking and C-H/pi interactions. Using mass-selected two-color resonant two photon ionization spectroscopy (2CR2PI), we measure electronic spectra and vertical ionization potentials (IPs) in the gas phase. Results are compared with model covalently linked assemblies (denoted Fn), exhibiting a sterically enforced cofacial (i.e., pi-stacked) orientation of chromophores. For both systems, an inverse size dependence (i.e., 1/n) of IP vs cluster size is found. Surprisingly, the values for the two sets fall on the same line! This trend is examined via theory, which emphasizes the important role of pi-stacking, and its geometrical dependencies, in the process of hole delocalization in multichromophoric assemblies. PMID- 29020767 TI - Confinement of Iodine Molecules into Triple-Helical Chains within Robust Metal Organic Frameworks. AB - During nuclear waste disposal process, radioactive iodine as a fission product can be released. The widespread implementation of sustainable nuclear energy thus requires the development of efficient iodine stores that have simultaneously high capacity, stability and more importantly, storage density (and hence minimized system volume). Here, we report high I2 adsorption in a series of robust porous metal-organic materials, MFM-300(M) (M = Al, Sc, Fe, In). MFM-300(Sc) exhibits fully reversible I2 uptake of 1.54 g g-1, and its structure remains completely unperturbed upon inclusion/removal of I2. Direct observation and quantification of the adsorption, binding domains and dynamics of guest I2 molecules within these hosts have been achieved using XPS, TGA-MS, high resolution synchrotron X ray diffraction, pair distribution function analysis, Raman, terahertz and neutron spectroscopy, coupled with density functional theory modeling. These complementary techniques reveal a comprehensive understanding of the host-I2 and I2-I2 binding interactions at a molecular level. The initial binding site of I2 in MFM-300(Sc), I2I, is located near the bridging hydroxyl group of the [ScO4(OH)2] moiety [I2I...H-O = 2.263(9) A] with an occupancy of 0.268. I2II is located interstitially between two phenyl rings of neighboring ligand molecules [I2II...phenyl ring = 3.378(9) and 4.228(5) A]. I2II is 4.565(2) A from the hydroxyl group with an occupancy of 0.208. Significantly, at high I2 loading an unprecedented self-aggregation of I2 molecules into triple-helical chains within the confined nanovoids has been observed at crystallographic resolution, leading to a highly efficient packing of I2 molecules with an exceptional I2 storage density of 3.08 g cm-3 in MFM-300(Sc). PMID- 29020770 TI - CsGOGAT Is Important in Dynamic Changes of Theanine Content in Postharvest Tea Plant Leaves under Different Temperature and Shading Spreadings. AB - We analyzed the changes of theanine content in postharvest tea leaves under high temperature (38 degrees C), low temperature (4 degrees C), and shading spreadings by using ultrahigh-performance liquid chromatography. The differentially expressed proteins (DEPs), CsFd-GOGAT and CsNADH-GOGAT, which are involved in theanine biosynthesis pathway, were identified from the corresponding proteome data. The protein-protein interactions of CsFd-GOGAT and CsNADH-GOGAT, CsTS1, or CsNiR were verified by yeast two-hybrid technology. The expression profiles of 17 genes in theanine metabolism, including CsFd-GOGAT and CsNADH GOGAT, were analyzed by quantitative real-time polymerase chain reaction. The correlations between the dynamic changes of theanine content and expression profiles of related genes and DEPs were analyzed. This study preliminarily proved the importance of CsGOGAT in dynamic changes of theanine content in postharvest tea leaves during spreading. PMID- 29020771 TI - Dissolution of Lignocelluloses with a High Lignin Content in a N-Methylmorpholine N-oxide Monohydrate Solvent System via Simple Glycerol-Swelling and Mechanical Pretreatments. AB - Lignocelluloses (LCs) with various amounts of lignin (even as high as 18.4%) were successfully dissolved in N-methylmorpholine-N-oxide monohydrate (NMMO/H2O) solution with stirring at 85 degrees C within 5 h. For the developmental dissolution methods of LCs with a high lignin content in NMMO/H2O solution, the following two pretreatment steps of LCs were necessary: (1) glycerol swelling and (2) mechanical extrusion. The mechanical extrusion pretreatment under glycerol swelling dissociated the fiber bundles of LCs to thinner fibers and, thus, enhanced the accessibility and solubility of the LCs in NMMO/H2O. The crystal structure of the pretreated LCs had no significant transformation during pretreatment, while the diameters of the fiber bundles were reduced from 50-60 to 10-12 MUm, as investigated by X-ray diffraction and scanning electron microscopy. After the dissolution-regeneration process of LCs, the fiber bundles of the LCs disappeared and the crystal type of cellulose in the LCs was transformed from cellulose I to cellulose II, which indicated the complete dissolution of LCs. PMID- 29020772 TI - Genetic Constructor: An Online DNA Design Platform. AB - Genetic Constructor is a cloud Computer Aided Design (CAD) application developed to support synthetic biologists from design intent through DNA fabrication and experiment iteration. The platform allows users to design, manage, and navigate complex DNA constructs and libraries, using a new visual language that focuses on functional parts abstracted from sequence. Features like combinatorial libraries and automated primer design allow the user to separate design from construction by focusing on functional intent, and design constraints aid iterative refinement of designs. A plugin architecture enables contributions from scientists and coders to leverage existing powerful software and connect to DNA foundries. The software is easily accessible and platform agnostic, free for academics, and available in an open-source community edition. Genetic Constructor seeks to democratize DNA design, manufacture, and access to tools and services from the synthetic biology community. PMID- 29020773 TI - Electrochemical Production of Magnetite Nanoparticles for Sulfide Control in Sewers. AB - Recently, naturally occurring magnetite (Fe3O4) has emerged as a new material for sulfide control in sewers. However, unrefined magnetite could have high heavy metal contents (e.g., Cr, Zn, Ni, Sn, etc.) and the capacity to remove dissolved sulfide is reasonably limited due to relatively large particle sizes. To overcome the drawbacks of unrefined magnetite we used an electrochemical system with mild steel as sacrificial electrodes to in-situ generate high strength solutions of plate-like magnetite nanoparticles (MNP). MNP with a size range between 120 and 160 nm were electrochemically generated at 9.35 +/- 0.28 g Fe3O4-Fe/L, resulting in a Coulombic efficiency (CE) for iron oxidation of 93.5 +/- 2.8%. The produced MNP were found to effectively reduce sulfide levels in sewage from 12.7 +/- 0.3 to 0.2 +/- 0.0 mg S/L at a sulfide-to-MNP ratio of 0.26 g S/g Fe3O4-Fe. Subsequently, MNP were continuously generated with polarity switching at stable cell voltage for 31 days at 4.53 +/- 0.35 g Fe3O4-Fe/L with a CE for iron oxidation of 92.4 +/- 7.2%. The continuously produced MNP reduced sulfide at similar levels to around 0.2 mg S/L at a ratio of 0.28 g S/g Fe3O4-Fe. PMID- 29020774 TI - Core-Shell Structures Arise Naturally During Ligand Exchange in Metal-Organic Frameworks. AB - Examination of the microstructure of metal-organic frameworks (MOFs) after postsynthetic exchange (PSE) reveals that the exchanged ligand is concentrated at the edges of the crystal and decreases in concentration with crystal depth, resulting in a core-shell arrangement. Diffusion studies of the carboxylate ligand into MOF-5 indicate that diffusion is limiting to the exchange process and may ultimately be responsible for the observed core-shell structure. Examination of PSE in UMCM-8 and single crystals of UiO-66 shows a similar trend, illustrating the applicability of PSE as a method for the creation of core-shell MOFs. PMID- 29020775 TI - Portable Nitric Oxide (NO) Generator Based on Electrochemical Reduction of Nitrite for Potential Applications in Inhaled NO Therapy and Cardiopulmonary Bypass Surgery. AB - A new portable gas phase nitric oxide (NO) generator is described for potential applications in inhaled NO (INO) therapy and during cardiopulmonary bypass (CPB) surgery. In this system, NO is produced at the surface of a large-area mesh working electrode by electrochemical reduction of nitrite ions in the presence of a soluble copper(II)-ligand electron transfer mediator complex. The NO generated is then transported into gas phase by either direct purging with nitrogen/air or via circulating the electrolyte/nitrite solution through a gas extraction silicone fiber-based membrane-dialyzer assembly. Gas phase NO concentrations can be tuned in the range of 5-1000 ppm (parts per million by volume for gaseous species), in proportion to a constant cathodic current applied between the working and counter electrodes. This new NO generation process has the advantages of rapid production times (5 min to steady-state), high Faraday NO production efficiency (ca. 93%), excellent stability, and very low cost when using air as the carrier gas for NO (in the membrane dialyzer configuration), enabling the development of potentially portable INO devices. In this initial work, the new system is examined for the effectiveness of gaseous NO to reduce the systemic inflammatory response (SIR) during CPB, where 500 ppm of NO added to the sweep gas of the oxygenator or to the cardiotomy suction air in a CPB system is shown to prevent activation of white blood cells (granulocytes and monocytes) during extracorporeal circulation with cardiotomy suction conducted with five pigs. PMID- 29020776 TI - Inversion Domain Boundary Induced Stacking and Bandstructure Diversity in Bilayer MoSe2. AB - Interlayer rotation and stacking were recently demonstrated as effective strategies for tuning physical properties of various two-dimensional materials. The latter strategy was mostly realized in heterostructures with continuously varied stacking orders, which obscure the revelation of the intrinsic role of a certain stacking order in its physical properties. Here, we introduce inversion domain-boundaries into molecular-beam-epitaxy grown MoSe2 homobilayers, which induce uncommon fractional lattice translations to their surrounding domains, accounting for the observed diversity of large-area and uniform stacking sequences. Low-symmetry stacking orders were observed using scanning transmission electron microscopy and detailed geometries were identified by density functional theory. A linear relation was also revealed between interlayer distance and stacking energy. These stacking sequences yield various energy alignments between the valence states at the Gamma and K points of the Brillouin zone, showing stacking-dependent bandgaps and valence band tail states in the measured scanning tunneling spectroscopy. These results may benefit the design of two-dimensional multilayers with manipulable stacking orders. PMID- 29020777 TI - Screen-Printed PEDOT:PSS Electrodes on Commercial Finished Textiles for Electrocardiography. AB - Electrocardiography (ECG) is an essential technique for analyzing and monitoring cardiovascular physiological conditions such as arrhythmia. This article demonstrates the integration of screen-printed ECG circuitry from a commercially available conducting polymer, PEDOT:PSS, onto commercially available finished textiles. ECG signals were recorded in dry skin conditions due to the ability of PEDOT:PSS to function as both ionic and electronic conductors. The signal amplifies when the skin transpires water vapor or by applying a common lotion on the skin. Finally, PEDOT:PSS wires connected to PEDOT:PSS electrodes have been shown to record ECG signals comparable to Ag/AgCl connected to copper wires. PMID- 29020778 TI - [Management of Medical Termination of Pregnancy (MToP) up until the 7th week of gestation in the Czech Republic]. AB - OBJECTIVE: In the Czech Republic (CR), it is possible, to carry out Medical Termination of Pregnancy (MToP) in the 1st trimester since June 2014, in case a woman submits a written request for it and in case the ultrasound examination confirms an intrauterine singleton prosperous pregnancy, between day 42 and 49 of gestation, crown-rump length (CRL) of the embryo 2-9 mm. The aim of the study is to analyze the management of MToP up until the 7th week of gestation in five centres in the CR. DESIGN: Multicenter cohort (prospective) study. SETTING: Department of Obstetrics and Gynecology, Palacky University Olomouc, Faculty of Medicine and Dentistry, University Hospital Olomouc; The Institute for the Care of Mother and Child, Charles University in Prague, Third faculty of Medicine; Department of Gynecology and Obstetrics, Charles University in Prague, First faculty of Medicine, General University Hospital in Prague; Department of Gynecology and Obstetrics, Charles University in Prague, First faculty of Medicine, Hospital Na Bulovce, Prague; Department of Gynecology and Obstetrics, Masaryk University, Faculty of Medicine, University Hospital Brno. METHODS: In 2014-2016, a total of 1820 pregnant women requested MToP. The diagnosis of an intrauterine singleton prosperous pregnancy was set by transvaginal ultrasound, CRL 2-9 mm. MToP was carried out by combination of mifepristone (600 mg orally) and misoprostol (400 mcg orally) within 48 hours. MToP follow up (exclusion of ongoing pregnancy) after 2-3 weeks was carried out by transvaginal ultrasound as well. RESULTS: In 11.0% of women (201/1820) who requested MToP, CRL > 9 mm, unprosperous, multiple or ectopic pregnancy was diagnosed. In the remaining 1619 women MToP was carried out, but in 221 cases (13.7%) at least one additional pre first visit was needed before the diagnosis of intrauterine singleton prosperous pregnancy CRL 2-9 mm could be established, in 19 cases (1.2%) two pre-first visits and in 5 cases (0.3%) even three. Gestational age was 42-49 days (average 47.1, median 47), the women were 14-47 years of age (average 30.7, median 30). In 20.8% of women (336/1619) MToP follow up was missed and of the remaining 1283 women, ongoing pregnancy (MToP failure) was diagnosed in 1.6% (24/1283), incomplete abortion in 6.5% (83/1283) and complete abortion in 91.9% (1179/1283). A subsequent surgical intervention was carried out in 7.1 % of women (91/1283). CONCLUSION: A medical facility performing MToP in the 1st trimester should develop its own methodology in accordance with the legislation in force, Summaries of Product Characteristics, and recommendations of professional associations. The methodology should also include a method of evaluation of the result and management. The subsequent surgical intervention should only be performed in indicated cases. The main goal of MToP follow up is to exclude ongoing pregnancy (MToP failure), and the patient should be informed in detail about the risks involved and possibilities of their solution, it is necessary to obtain an informed consent. PMID- 29020779 TI - Management of Medical Termination of Pregnancy (MToP) up until the 7th week of gestation in the Czech Republic. AB - OBJECTIVE: In the Czech Republic (CR), it is possible, to carry out Medical Termination of Pregnancy (MToP) in the 1st trimester since June 2014, in case a woman submits a written request for it and in case the ultrasound examination confirms an intrauterine singleton prosperous pregnancy, between day 42 and 49 of gestation, crown-rump length (CRL) of the embryo 2-9 mm. The aim of the study is to analyze the management of MToP up until the 7th week of gestation in five centres in the CR. DESIGN: Multicenter cohort (prospective) study. SETTING: Department of Obstetrics and Gynecology, Palacky University Olomouc, Faculty of Medicine and Dentistry, University Hospital Olomouc; The Institute for the Care of Mother and Child, Charles University in Prague, Third faculty of Medicine; Department of Gynecology and Obstetrics, Charles University in Prague, First faculty of Medicine, General University Hospital in Prague; Department of Gynecology and Obstetrics, Charles University in Prague, First faculty of Medicine, Hospital Na Bulovce, Prague; Department of Gynecology and Obstetrics, Masaryk University, Faculty of Medicine, University Hospital Brno. METHODS: In 2014-2016, a total of 1820 pregnant women requested MToP. The diagnosis of an intrauterine singleton prosperous pregnancy was set by transvaginal ultrasound, CRL 2-9 mm. MToP was carried out by combination of mifepristone (600 mg orally) and misoprostol (400 mcg orally) within 48 hours. MToP follow up (exclusion of ongoing pregnancy) after 2-3 weeks was carried out by transvaginal ultrasound as well. RESULTS: In 11.0% of women (201/1820) who requested MToP, CRL > 9 mm, unprosperous, multiple or ectopic pregnancy was diagnosed. In the remaining 1619 women MToP was carried out, but in 221 cases (13.7%) at least one additional pre first visit was needed before the diagnosis of intrauterine singleton prosperous pregnancy CRL 2-9 mm could be established, in 19 cases (1.2%) two pre-first visits and in 5 cases (0.3%) even three. Gestational age was 42-49 days (average 47.1, median 47), the women were 14-47 years of age (average 30.7, median 30). In 20.8% of women (336/1619) MToP follow up was missed and of the remaining 1283 women, ongoing pregnancy (MToP failure) was diagnosed in 1.6% (24/1283), incomplete abortion in 6.5% (83/1283) and complete abortion in 91.9% (1179/1283). A subsequent surgical intervention was carried out in 7.1 % of women (91/1283). CONCLUSION: A medical facility performing MToP in the 1st trimester should develop its own methodology in accordance with the legislation in force, Summaries of Product Characteristics, and recommendations of professional associations. The methodology should also include a method of evaluation of the result and management. The subsequent surgical intervention should only be performed in indicated cases. The main goal of MToP follow up is to exclude ongoing pregnancy (MToP failure), and the patient should be informed in detail about the risks involved and possibilities of their solution, it is necessary to obtain an informed consent. PMID- 29020780 TI - [Selective feticide in monochorionic twin pregnancies with discordant fetal anomalies: management and outcome]. AB - OBJECTIVE: To analyze results and outcome after selective feticide for discordant anomalies in monochorionic twins. DESIGN: Prospective cohort study. SETTING: Fetal medicine center, Institute for the Care of Mother and Child, Praha. METHODS: Analysis of outcome of monochorionic pregnancies after intrauterine surgery for structural abnormalities between January 2013 and June 2016. RESULTS: We performed 13 intrauterine operations in monochorionic twins with structural anomalies during the period. There were 12 monochorionic diamniotic and one monochorionic monoamniotic twins. We encountered four cases of Twin Reversed Arterial Perfusion sequence (TRAP), six central nervous system lesions, two abdominal wall defects and one heterokaryotypic pregnancy with trisomy 13. In seven cases we performed bipolar cord occlusion, in four cases of TRAP sequence we performed radiofrequency ablation (RFA). We also performed laser photocoagulation of placental anastomoses in a case of gastroschisis complicated with twin-to-twin transfusion syndrome. One operation was unsuccessful for technical reasons - failing to perform amnioinfusion in a fetus with eventeration and anhydramnios. All procedures were performed in local anesthesia. Fetuses were born between 26 a 41 weeks of gestation (mean 35 weeks; 77% of fetuses were delivered after 32 weeks). Mean neonatal weight 2260 g. We encountered no intrauterine demise of a healthy fetus. CONCLUSION: Patients with discordant fetal anomalies in monochorionic twins can be offered a selective feticide via bipolar umbilical cord occlusion or radiofrequency ablation that are proven to be safe and effective. PMID- 29020781 TI - [The finding of isolated oligohydramnios after 37th week of gestation and its association with perinatal outcome]. AB - OBJECTIVE: The objective of this study is to determinate the influence of oligohydramnios on perinatal outcome in term pregnancies. DESIGN: Retrospective case-control study. SETTING: II. Gynecologic Obstetrics Department, Comenius University, Bratislava. METHODS: Authors analysed a group of 372 single pregnancies after completed 37th week of gestation in years 2011 to 2015 with sonographic diagnosis of isolated oligohydramnios. A control group was created with matched patients by age and parity with normal amniotic fluid volume. RESULTS: We found significant differences in number of obstetric intervention between the two groups: patients with oligohydramnios had higher number of cesarean sections (71% compared to 33.9% in control group) and also the number of inductions was significantely higher (27.4% compared to 18.8%). The most common indication for cesarean delivery was presumed fetal hypoxia. We did not find any differences in numbers of neonates with low Apgar score, low umbilical cord pH and admission to neonatal intensive care unit. CONCLUSION: The finding of isolated oligohydramnios after 37th week of gestations is associated with higher risk of obstetric intervention without any association with adverse perinatal outcome. PMID- 29020782 TI - [External cephalic version after 36th week of gestationAnalysis of women's perspective]. AB - OBJECTIVE: Evaluation of opinions and subjective feelings of patients who have undergone an external cephalic version of a fetus in breech presentation after the 36th week of pregnancy. DESIGN: Observational analytic cohort study. SETTING: Department of Obstetrics and Gynecology, Masaryk University, University Hospital Brno. MATERIALS AND METHODS: We collected opinions and subjective evaluation from pregnant women who underwent an attempt of external cephalic version at the department of Gynecology and Obstetrics, Masaryk University in Brno in the period from 1st January 2015 to 31st December 2016 through a questionnaire. The questionnaire contained a total of 10 dichotomous, sampling, enumeration and scale questions. Questions were focused on the source and type of information on external cephalic version, expectations of the patients, evaluation of pain and feelings during the procedure and the overall impression. We also evaluated the differences between answers from patients after a successful and an unsuccessful version. RESULTS: In reported period 205 pregnant women underwent an attempt of external cephalic version. Procedure was successful in 105 (51.2%) cases of which 81 (77.1%) subsequently gave birth vaginally, 24 (22.9%) delivered by caesarean section, 10 (9.5%) out of all patients delivered in other hospitals. The total number of fully completed questionnaires was 187 (after a successful version 98 and 89 after an unsuccessful version). The most common source of information about the procedure was given to the patients from their gynecologists (40.5%) and doctors at the ambulance in the hospital where the patients are sent before delivery by their gynecologists (27.9%). Most mothers received mostly positive information (70.5%) - increased likelihood of vaginal delivery, high success rate, low risk to mother and child. Attitude of the gynecologists on the external cephalic version was positive in 52.6% and they recommended it. 14.4% of the patients had no fear before the procedure, 61% patients were nervous and 23% had fear. For 30.5% of the respondents was the version worse than expected. 33.7% of the patients expected that the procedure would be worse and for 35.8% of the women the procedure fulfilled their expectations. 42.2% of all patients rated the pain level on a scale from 0 (no pain) to 10 (maximum pain) in the range of 4-6 points, 28.9% evaluated the pain under 4 points and 28.9% over 6 points. Among other unpleasant feelings associated with external cephalic version were most frequently mentioned: nausea (15.9%), fear (39.8%), distress (7.5%). One-third of respondents, however, experienced no negative feelings (33.8%). 80.2% of the patients did not have any problems after the version. Out of all respondents 89.3% would undergo the procedure again and recommend it to others. Overall satisfaction rating on a scale from 0 (completely dissatisfied) to 5 (very satisfied) was 89.8% in the range from 4 to 5. When comparing the answers of patients after an external cephalic version there was no significant difference depending on the success of the version. CONCLUSION: The results show that the main source of information is given to the patients by their gynecologists and doctors in the hospital who recommend the procedure and significantly affect the attitude of patients towards external cephalic version. Fear and nervousness of the mothers is usually unfounded, most of the women evaluate the procedure positively and would recommend it to another pregnant women even in case of an unsuccessful attempt. Pain during the procedure is for most women bearable and in the overall ranking does not mean a significant problem. PMID- 29020783 TI - [Corifollitropin alfa in women stimulated for the first time in in vitro fertilization programme]. AB - OBJECTIVES: To compare results after stimulation with corifollitropin alfa (Elonva) in unselected group of women entering for the first time in in vitro fertilization programme (IVF) with results from Phase III randomized trials with selected groups of women. DESIGN: Prospective study. SETTING: Sanatorium Pronatal, Praha. METHODS: 40 unselected women with adequat ovarian reserve entering for the first time in IVF programme were stimulated with corifollitropin alfa and GnRH antagonists. Avarage age in the study group was 32,8 years (29-42 years), women younger then 36 and less then 60 kg received Elonva 100 ug , all others (age > 36 let, weight > 60 kg) Elonva 150 ug. Five days after egg retrieval one blastocyst was transferred (single embryo transfer - eSET). Our results were compared with the resuls in higly selected groups of women from Phase III randomized trials. RESULTS: After stimulation with corifollitropin alfa and GnRH antagonists on average 10,6 (9,2 +/- 4,2) eggs could be retrieved, among them 7,3 (6,6 +/- 3,9) were M II oocytes (68,9%) and fertilisation rate was 84,6%. After first embryo transfer ("fresh" embryos and embryos from "freeze all" cycles) 14 pregnancies were achieved (37,8%), three pregnancies were achieved later from transfer of frozen-thawed embryos (cumulative pregnancy rate 45,9%). There were three abortions. No severe hyperstimulation syndrom occured. Our results in unselected group of women stimulated for the first in an IVF programme with corifollitropin alfa are fully comparable with results published in randomized trials with selected group of patiens. CONCLUSION: Corifollitropin alfa in combination with daily GnRH antagonist can be successfully used in normal responder patients stimulated for the first time in an IVF programmeKeywords: corifollitropin alfa, GnRH antagonists, ovarian stimulation, pregnancy. PMID- 29020784 TI - [Screening of endometrial NK cells in selected infertile patients First part - Methods and current results]. AB - INTRODUCTION: Generaly, natural killer cells (NK cells) are among the most important cells of our immune defense system. They are present in the blood, decidua but also in secretory endometrium. OBJECTIVE: We investigate an association between high density of NK cells CD56+ and NK cells CD16+ into blood and secretory endometrium in patients with up to now unexplained recurrent miscarriage. At the same time, we focused on diagnosis of antiphospholipid syndrome, congenital trombophilic factors, stress factor, and lenght of hormonal contraception before conception. DESIGN: Original work-prospective study. SETTING: Genetics-Pilsen. METHODS: We investigated 59 patients aged 25-41 (average 34) years with their history of 3-9 abortions. We monitored their blood cells by flow cytometry and endometrium obtained by hysteroscopy performed on the 22nd-24th day of the menstrual cycle. We concentrated on the cellular immunity focused on the identification of lymphocytes CD56+ and CD16+. ELISA method was used for identification of antiphospholipid antibodies. RESULTS: Our study goes on, we are publishing our preliminary results. We found a high density of endometrial NK cells CD56+ in 41/57, NK cells CD16+ in 40/57, both NK cells CD56+ and CD16+ in 36/57 patients. In 13 women, we identified only sporadically these cells in the secretory endometrium. NK cells CD56+ and NK cells CD16+ in the blood were all normal number in all our patients. Three of them have a homozygot form of Leiden mutation, and 18/57 primary antiphospholipid syndrome, 12 women have university education, four of them, medical doctors, have regular night services in the hospital. CONCLUSION: Overproduction of endometrial NK cells is associated with increased local activity of embryocytotoxic cytokines that may negatively affect pregnancy. Treatment of patients with pathological immunological findings must be solved individually, as we will show soon in part two of our study. PMID- 29020785 TI - [How is the Czech oocyte donor? The analysis of their profile]. AB - OBJECTIVE: The aim of our study was to investigate (a) the basic socio demographic characteristics of Czech oocytes donors, (b) their attitudes towards anonymous or nonanonymous donation and (c) their motivations to donate oocytes. DESIGN: Original article. SETTING: Clinic of Reproductive Medicine and Gynecology Zlin. METHODS: A total of 215 oocytes donors participated in this study, which was undertaken in years 2015-2016. The data were obtained by an anonymous questionnaire. Descriptive and inferential statistics were used to analyzed the data. CONCLUSION: The results show that (a) mean age of oocytes donors was 26 years. Single women (60%) with secondary level education (57%) prevailed. More than half of them (55%) had at least one child on their own. About 39% of donors were fully employed, 29% women on maternity leave and 16% students. (b) For the majority of participants the anonymity is very important. Almost 55% of oocyte donors prefer to stay in anonymity and 20% were not sure. In case that anonymity would be abolished, only 20% of the Czech oocyte donors would be willing to donate. There were no differences based on education (p = 0,358), age (p = 0,112), marital (p = 0,741) and maternal status (p = 0,691). (c) The main motivation to donation was altruism (helping infertile people), no less important factors were the finantial motivation and the testing own fertility. The altruistic motivation to donate was significantly related to the wish to remain anonymous (p = 0,0002). CONCLUSION: The typical Czech oocyte donor is young, mainly altruistic woman with her own child who wants to stay in anonymous relation to the couple whom she is helping as well as to the possible genetic offspring. PMID- 29020786 TI - [What is the risk of pelvic organ prolapse recurrence after vaginal hysterectomy with colporrhaphy?] AB - OBJECTIVE: To determine the risk of prolapse recurrence in patients after vaginal hysterectomy with colporrhaphy. DESIGN: Retrospective clinical study. SETTING: Department of Obstetrics and Gynaecology, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague. METHODS: The trial involved 220 women who underwent vaginal hysterectomy with anterior and posterior kolporrhaphy at our department for uterine prolapse at least grade 2. It was the first vaginal surgery in all of the patients. Subjective feeling of pressure in the vagina and/or palpable mass in the vagina or in front of the vaginal entrance and/or objective finding decline of the vaginal walls or fundus at lest the second degree or repeated surgery for prolapse were considered as a prolapse recurrence. RESULTS: The mean age at the time of vaginal hysterectomy was 66.7 years (range 37-88). Only 11 patients were premenopausal (5%), the others were postmenopausal, a mean time of posmenopause was 16.9 years. The average parity rate of the study group was 2.1. The average duration of the surgery was 68 minutes. Postoperative urinary retention was observed in one patient (0.45%). 156 women were enrolled in the study. The average length of follow-up was 47 months (minimum 24 months). Recurrence of prolapse based on subjective assessment occured in 24 patients (15.4 %) with pressure and resistance in the vaginal introitus. According to objective criteria, the recurrence of prolapse was diagnosed in 33 (21.2%) patients, of which 16 had prolapse of the anterior vaginal wall, three of the posterior vaginal wall (two rectocoele, one rectoenterocoele), eight combination prolapse of anterior and posterior vaginal wall and vaginal vault prolapse was diagnosed in six women. Eight patients (5. 1%) underwent surgery because of prolapse recurrence. The mean interval from primary surgery to the time of reoperation was 24.4 months (range 6-62). CONCLUSION: Patients have to be preoperatively informed about the risk of the prolapse recurrence with the recommendation of appropriate preventive arrangements. PMID- 29020787 TI - [Carcinosarcoma of the endometrium with melanocytic differentiation, case report]. AB - OBJECTIVE: The case report presents a case of 60-year old woman with a rare malignant mixed Mullerian tumor with melanomatous differentiation diagnosed from a histology after cervical polyp ablation and curettage. DESIGN: Case report. SETTING: Department of gynecology and obstetrics, University Hospital in Pilsen. CONCLUSION: Carcinosarcoma, previously malignant mixed Mullerian tumor, is a very rare aggressive endometrial carcinoma with low incidence, which typically occurs among older women and commonly affects the uterine body and cervix. Clinically, the carcinosarcoma is impossible to be distinguished from endometrial carcinoma or uterine sarcoma and the definitive diagnosis can only be made based on histological examination. PMID- 29020788 TI - [Complete molar pregancy with development of non-metastatic persistent trophoblastic diseaseA case report, reflection of rules of care and decision making processes Forensic responsibility and the position of doctor in the general gynecologic and obstetric outpatient practice]. AB - OBJECTIVE: To define the forensic responsibility and the position of doctor in the general gynecologic and obstetric outpatient practice in care of the complete molar pregancy. DESIGN: Case report and review article. SETTING: General gynecologic and obstetric outpatient practice Velke Mezirici; Sanatorium REPROMEDA, Centre of reproductive medicine and preimplantation genetics, Brno; Histopatology department of Hospital Jihlava. CASE REPORT: The changing clinical presentation of complete molar pregnancy with development of non-metastatic gestational trophoblastic disease: management. Subsequent early pregnancies outcome following complete hydatiform molar pregnancy. DISCUSSION: Discussed are the forensic responsibility and the position of doctor in the general gynecologic and obstetric outpatient practice with the collaboration of Trophoblastic Disease Center based on the detail expert knowledges: rules of care and decision-making processes and potential controversies, the pitfalls of the histopathologic diagnosis, the genetics of complete hydatiform mole: new lights on a disease, outpatient follow-up and possibility and the risks of the subsequent pregnancy. CONCLUSION: The conclusion is trying to guide quickly a doctor in the general gynecologic and obstetric outpatient practice in the decision-making processes through the crossings of any situation of the complete molar pregnancy and outpatient follow-up, alternatively with the collaboration of Trophoblastic Disease Center. PMID- 29020789 TI - [The role of maternal imunity and woman's microbiome in the pathogenesis of preterm labor]. AB - OBJECTIVE: To summarize available data concerning the role of maternal imunity and woman's microbiome in the pathogenesis of preterm labor and their use in clinical practice. SETTING: Department of Obstetrics and Gynecology od the First Faculty of Medicine, Charles University in Prague, and General Teaching Hospital. DESIGN: Review article. METHODS: Compilation od published data from scientific literature. CONCLUSION: Preterm labor complicates approximately 10% of all pregnancies and represents a serious medical, social and economic problem. In the past, a lot of causes of preterm labor were discussed; infection, uteroplacental ischemia, decidual hemorrhage, uterine overdistension, cervical disease and maternal-fetal tolerance disorder were considered the most common. However, chronic inflammation seems to be the common pathogenic process underlying preterm labor, irrespective of the original stimulus. Currently, impaired maternal-fetal immunological tolerance represents most discussed topic. Growing scientific evidence suggests that the immune regulation of the maternal-fetal interface is the result of the coordinated interaction among maternal microbiota, trophoblast and maternal cellular components. From this view we understand preterm labor as a result of disruption of this process. PMID- 29020790 TI - [Endometriosis and quality of life]. AB - OBJECTIVE: This article aims to provide a comprehensive overview of the possibilities of evaluating the impact of symptoms of endometriosis on quality of life of affected women and to overview the effect of treatment modalities in improving of the quality of their life. DESIGN: Review article. SETTING: Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University and General University Hospital in Prague. METHODS: Review of results of published studies evaluating quality of life in patients with endometriosis. CONCLUSION: Symptoms of endometriosis decrease the quality of life of affected women, which has significant impact on society. Since the extent of endometriosis does not correlate with subjective complaints, it is suitable to evaluate the quality of life of patients in addition to assessment of the extent and classification of the disease (according to internationally accepted classification). The quality of life could be measured and compared by structured interviews or by validated questionnaires. Pharmacological as well as surgical treatment significantly improve quality of life of patients with endometriosis. Routine use of validated questionnaires of quality of life in patients with endometriosis might improve the assessment of severity of the disease and evaluation of effectiveness of the treatment in the future. PMID- 29020791 TI - Parents' and young adults' perspectives on transition outcomes for young adults with autism. AB - Existing research shows that young adults with autism spectrum disorder have poorer outcomes than their peers with other developmental disabilities in the key areas of independent living, postsecondary education, and employment. However, we understand little about how young adults with autism and their families understand and value outcomes and whether these indicators match their goals and aspirations. We interviewed parents (n = 21) and young adults with autism spectrum disorder (n = 20) about their experiences with the transition to adulthood to understand what they consider to be desirable outcomes and how they seek to achieve them. Understanding these perspectives will help identify areas of need as well as disconnections between service objectives and the goals of young adults and their families. Participants described outcomes as more complex and nuanced than current conceptions and measures account for. They defined and evaluated outcomes in relation to their or their child's individual abilities, needs, and desires. These findings provide important insight into challenges to and facilitators of desired outcomes, which has implications for programming, service delivery, and policy. PMID- 29020792 TI - The "Good Old Days" of Courtroom Questioning: Changes in the Format of Child Cross-Examination Questions Over 60 Years. AB - Recent decades have seen an explosion of research into children's eyewitness capabilities and resulted in legal reform to render the adversarial trial process more child friendly. Many, however, have been left with the feeling that the most intimidating legal process for child complainants-cross-examination-has not changed meaningfully despite its potential to distort children's evidence. To test this possibility, we compared the cross-examination questioning of Australian child sexual abuse complainants in the 1950s to that used in contemporary cases. We found that the format of cross-examination questions has remained largely consistent over time, with leading questions still making up the bulk of the questions asked. The changes that we did observe, however, are concerning. Cross-examination questions posed to contemporary child complainants were less likely to be open-ended and more likely to be complex, relative to those asked in the 1950s. Crucially, contemporary complainants were asked 3 times as many cross-examination questions as they were 60 years ago. These changes are likely to have detrimental effects on child complainants and their evidence and could reduce the ability of jurors to reach just outcomes in these cases. PMID- 29020793 TI - Sexual Abuse of Children With Learning Disabilities. AB - Although children with a learning disability (LD) are at an increased risk of sexual abuse, it is unclear whether conditions specific to their impairment are associated with sexual assault or if risk derives from other comorbid conditions such as behavioral problems, social skill deficits, or loneliness. Using a national probability study of child maltreatment investigations in the United States ( n = 2,033), we hypothesized that children over the age of 4 with a LD are target congruent to a sexual perpetrator. Seven percent of children were identified as having a LD, and the odds of a sexual abuse allegation was 2.5 times greater for children with a LD relative to children without a LD regardless of confounders. Further, type and severity of assaults varied by group: over 3 times more children with a LD experienced digital or oral copulation compared to those without a LD. Results suggest that children with LDs may require tailored prevention efforts to protect them from sexual abuse. PMID- 29020794 TI - Primary Care Teams and Pharmacist Staffing Ratios: Is There a Magic Number? AB - Primary care physician (PCP) shortages are predicted for 2025, and many workforce models have recommended the expanded integration of nurse practitioners and physician assistants. However, there has been little consideration of incorporating clinical pharmacists on primary care teams to address the growing number of patient visits that involve medication optimization and management. This article summarizes various estimates of pharmacist staffing ratios based on number of PCPs, patient panel size, or annual patient encounters. Finally, some steps are offered to address the practice- and policy-based implications of expanding primary care pharmacist activities at the local and state levels. PMID- 29020795 TI - Assay signal as an alternative to titer for assessment of magnitude of an antidrug antibody response. AB - BACKGROUND: Titer methods are commonly used to characterize the magnitude of an antidrug antibody response. Assay S/N is an appealing alternative, but the circumstances under which use of signal-to-noise (S/N) is appropriate have not been well defined. RESULTS: We validated both titer and S/N-based methods for several therapeutics. S/N correlated strongly with titer both in aggregate and when examined on a per subject basis. Analysis of impact of antibody magnitude on pharmacokinetics yielded the same result using either method. Each assay demonstrated excellent precision, good linearity, and adequate drug tolerance. CONCLUSION: Under these circumstances, assay S/N is a valid alternative to titer for assessment of the magnitude of an antidrug antibody response. PMID- 29020797 TI - Extracellular Superoxide Dismutase Attenuates Renal Oxidative Stress Through the Activation of Adenosine Monophosphate-Activated Protein Kinase in Diabetic Nephropathy. AB - AIMS: Oxidative stress plays a crucial role in the pathogenesis of diabetic nephropathy (DN). We evaluated whether extracellular superoxide dismutase (EC SOD) has a renoprotective effect through activation of adenosine monophosphate activated protein kinase (AMPK) in diabetic kidneys. RESULTS: Human recombinant EC-SOD (hEC-SOD) was administered to 8-week-old male C57BLKS/J db/db mice through intraperitoneal injection once a week for 8 weeks. Renal SOD3 expression was suppressed in db/db mice, which was significantly enhanced by hEC-SOD treatment. hEC-SOD improved albuminuria, mesangial expansion, and interstitial fibrosis in db/db mice. At the molecular level, hEC-SOD increased phosphorylation of AMPK, activation of peroxisome proliferative-activated receptor gamma coactivator 1alpha (PGC-1alpha), and dephosphorylation of forkhead box O transcription factor (FoxO)1 and FoxO3a. The protective effects of hEC-SOD were attributed to enhanced nuclear translocation of nuclear factor E2-related factor 2 (Nrf2) and subsequently increased expression of NAD(P)H dehydrogenase 1 and heme oxygenase 1. Consequently, hEC-SOD recovered from systemic and renal inflammation and apoptosis, as reflected by the decreases of serum and renal monocyte chemoattractant protein-1 and tumor necrosis factor-alpha levels and increases of BCL-2/BAX ratio in diabetic kidney. hEC-SOD also improved oxidative stress and resulted in increased renal and urinary 8-hydroxy-2'-deoxyguanosine and 8 isoprostane levels in db/db mice. In cultured human glomerular endothelial cells, hEC-SOD ameliorated apoptosis and oxidative stress caused by high glucose exposure through activation of AMPK and PGC-1alpha and dephosphorylation of FoxOs. INNOVATION: These findings demonstrated for the first time that EC-SOD can potentially ameliorate hyperglycemia-induced oxidative stress, apoptosis, and inflammation through activation of AMPK and its downstream pathways in diabetic kidneys. CONCLUSIONS: EC-SOD is a potential therapeutic target for treatment of type 2 DN through intrarenal AMPK-PGC-1alpha-Nrf2 and AMPK-FoxOs signaling. Antioxid. Redox Signal. 28, 1543-1561. PMID- 29020798 TI - Serum Bovine Immunoglobulin for Chemotherapy-Induced Gastrointestinal Mucositis. AB - Cancer treatments including chemotherapy and radiotherapy treat cancer by targeting rapidly dividing cells. Although these forms of treatment damage rapidly dividing cancer cells, they are also toxic to the cells of the gastrointestinal tract, leading to inflammation of the mucosal layer (mucositis) and causing nausea, vomiting, diarrhea, and abdominal pain. Improvement in symptoms may allow patients to have better performance status permitting ongoing treatment and possibly a better prognosis. This article describes the pathophysiology of chemotherapy-induced mucositis and includes 3 case reports of treatment of mucositis with serum bovine immunoglobulin. PMID- 29020796 TI - Social support, stigma, and HIV disclosure among parents living with HIV in Guangxi, China. AB - Both stigma and social support have been identified to be associated with HIV status disclosure among people living with HIV. This study aimed to examine cross sectional associations of perceived social support and multiple types of stigma with both disclosure to various target groups and timing of disclosure among parents living with HIV (PLHIV) in Guangxi, China. Cross-sectional data from 1254 PLHIV in Guangxi, China were analyzed. Measures included demographics, disclosure to specific groups (steady partner/spouse, children, family and others) and timing of disclosure, perceived social support, and three types of HIV-related stigma (perceived, internalized, and enacted stigma). Logistic regression analyses were performed to identify the associations of interest. The participants who reported higher levels of perceived social support were more likely to have disclosed to steady partner/spouse, family or others. Those who experienced enacted stigma were more likely to have disclosed to children or family. Those who were married/cohabitating were more likely to have disclosed to steady partner/spouse, and less likely to have disclosed to children, family or others. Older PLHIV were less likely to have disclosed to steady partner/spouse, or family. Those who had a job were more likely to have disclosed to steady partner/spouse. Perceived social support appeared not to be associated with timing of disclosure. Those who disclosed within a shorter time after diagnosis were more likely to be women or have disclosed to steady partner/spouse, and less likely to have higher perceived stigma or have disclosed to family. Interventions are needed to help reduce the negative effect of perceived stigma at both family and community levels and to help enhance perceived social support in general and emotional support in particular among PLHIV, especially males and older adults. PMID- 29020799 TI - Is There a Role for 5-HT3 Receptor Antagonists in the Treatment of Opioid-Induced Pruritus? AB - Pruritus is an unpleasant irritation symptom that can be related to various systemic and dermatological conditions. Although underreported, pruritus is a common adverse event noted after use of opioid pain medications. This article reviews the current understanding of the mechanism of opioid-induced pruritus (OIP) and various pharmacological therapies. 5-Hydroxytryptamine 3 (5-HT3) receptor antagonists are potentially effective for treating OIP and may be a valuable treatment option if further controlled studies are encouraging. PMID- 29020800 TI - An Approach to Minimising Risk of Adrenal Insufficiency When Discontinuing Oral Glucocorticoids. AB - Oral glucocorticoids are commonly used across every field of medicine; however, discontinuing them in patients can be challenging. The risk of acute adrenal crises secondary to glucocorticoid withdrawal can be fatal and arises from chronic suppression of the adrenal glands. Identifying risk factors for adrenal suppression in dermatological patients, such as doses greater than 5 to 7.5 mg of prednisone equivalent, duration of glucocorticoid use greater than 3 weeks, certain medications, and comorbidities, can help risk-stratify patients. The use of adrenal gland testing such as basal cortisol levels and adrenocorticotropic hormone stimulation tests can confirm adrenal suppression in patients. This review article provides an approach that dermatologists can use to minimise the risk of adrenal insufficiency in patients discontinuing glucocorticoids and when it may be appropriate to use adrenal gland testing. PMID- 29020801 TI - Factors Influencing Influenza Vaccination Among Patients With Chronic Obstructive Pulmonary Disease: A Population-Based Cross-sectional Study. AB - This study aimed to investigate the factors associated with vaccination coverage among chronic obstructive pulmonary disease (COPD) patients in Korea using the fourth to the sixth Korean National Health and Nutrition Examination Surveys (KNHANES IV, V, VI). A total of 16 812 subjects aged 40 years and older who underwent spirometry and had an "influenza vaccination history" were analyzed. The vaccination rate of middle-aged (40-64 years) COPD patients was only 31.9%; whereas, the vaccination rate of elderly (65 years and older) COPD patients was 80.0%. The results of a multiple regression analysis indicated that older age (odds ratio [OR], 1.12; 95% confidence interval [95% CI], 1.09-1.14), poor self rated health status (OR, 1.45; 95% CI, 1.14-1.95), regular health check-up (OR, 2.61; 95% CI, 1.93-3.51), married marital status (OR, 0.64; 95% CI, 0.42-0.96), and household income below average (OR, 0.72; 95% CI, 0.53-0.98) were associated with influenza vaccination. More attention and targeted interventions are required to improve the influenza vaccination rate of COPD patients. PMID- 29020803 TI - Pulmonary lymphomatoid granulomatosis diagnosed by image-guided core needle biopsy. PMID- 29020804 TI - Multi-informant assessment of transition-related skills and skill importance in adolescents with autism spectrum disorder. AB - Adolescents with autism spectrum disorder have limited participation in the transition planning process, despite the link between active participation and an improvement in postsecondary education and employment outcomes. The Secondary School Success Checklist was designed to support transition planning for adolescents with autism spectrum disorder by incorporating their own assessments of strengths, skill deficits, and prioritization for instruction along with those of their parents and teachers across multiple skill domains. Findings from more than 500 adolescents with autism spectrum disorder across the United States indicate discrepancies between adolescent, teacher, and parent ratings of skills highlighting the importance of the inclusion of multiple perspectives in transition planning. Although ratings varied, agreement between adolescents with autism spectrum disorder, parents, and teachers across the highest and lowest rated skills suggests the need to broaden the focus on critical transition skills to include problem-solving, planning for life after high school, and self advocacy. PMID- 29020802 TI - Recent Advances in the Systems Biology of Aging. AB - SIGNIFICANCE: Reductionist studies have contributed greatly to our understanding of the basic biology of aging in recent years but we still do not understand fundamental mechanisms for many identified drugs and pathways. Use of systems approaches will help us move forward in our understanding of aging. Recent Advances: Recent work described here has illustrated the power of systems biology to inform our understanding of aging through the study of (i) diet restriction, (ii) neurodegenerative disease, and (iii) biomarkers of aging. CRITICAL ISSUES: Although we do not understand all of the individual genes and pathways that affect aging, as we continue to uncover more of them, we have now also begun to synthesize existing data using systems-level approaches, often to great effect. The three examples noted here all benefit from computational approaches that were unknown a few years ago, and from biological insights gleaned from multiple model systems, from aging laboratories as well as many other areas of biology. FUTURE DIRECTIONS: Many new technologies, such as single-cell sequencing, advances in epigenetics beyond the methylome (specifically, assay for transposase-accessible chromatin with high throughput sequencing ), and multiomic network studies, will increase the reach of systems biologists. This suggests that approaches similar to those described here will continue to lead to striking findings, and to interventions that may allow us to delay some of the many age-associated diseases in humans; perhaps sooner that we expect. Antioxid. Redox Signal. 29, 973-984. PMID- 29020805 TI - Intravenous Carbamazepine for Adults With Seizures. AB - OBJECTIVE: To review the pharmacology, pharmacokinetics, efficacy, safety, dosage and administration, potential drug-drug interactions, and place in therapy of the intravenous (IV) formulation of carbamazepine (Carnexiv) for the treatment of seizures in adult patients. DATA SOURCES: A comprehensive PubMed and EBSCOhost search (1945 to August 2017) was performed utilizing the keywords carbamazepine, Carnexiv, carbamazepine intravenous, IV carbamazepine, seizures, epilepsy, and seizure disorder. Additional data were obtained from literature review citations, manufacturer's product labeling, and Lundbeck website as well as Clinicaltrials.gov and governmental sources. STUDY SELECTION AND DATA EXTRACTION: All English-language trials evaluating IV carbamazepine were analyzed for this review. DATA SYNTHESIS: IV carbamazepine is FDA approved as temporary replacement therapy for treatment of adult seizures. Based on a phase I trial and pooled data from 2 open-label bioavailability studies comparing oral with IV dosing, there was no noted indication of loss of seizure control in patients switched to short term replacement antiepileptic drug therapy with IV carbamazepine. The recommended dose of IV carbamazepine is 70% of the patient's oral dose, given every 6 hours via 30-minute infusions. The adverse effect profile of IV carbamazepine is similar to that of the oral formulation, with the exception of added infusion-site reactions. CONCLUSION: IV carbamazepine is a reasonable option for adults with generalized tonic-clonic or focal seizures, previously stabilized on oral carbamazepine, who are unable to tolerate oral medications for up to 7 days. Unknown acquisition cost and lack of availability in the United States limit its use currently. PMID- 29020807 TI - Recognizing the role of CGRP and CGRP receptors in migraine and its treatment. AB - Premise The brain and the sensory nervous system contain a rich supply of calcitonin gene-related peptide (CGRP) and CGRP receptor components. Clinical studies have demonstrated a correlation between CGRP release and acute migraine headache that led to the development of CGRP-specific drugs that either abort acute attacks of migraine (gepants) or are effective as prophylaxis (antibodies). However, there is still much discussion concerning the site of action of these drugs. Problem Here we describe the most recent data related to CGRP in the trigeminal ganglion and its connections to the CNS, putative key regions involved in migraine pathophysiology. Gepants are small molecules that have limited ability to cross the blood-brain barrier (BBB), whereas CGRP antibodies are 1500 times larger molecules, and are virtually excluded from the brain, with a BBB permeability of < 0.1%. Thus we propose that the primary site of action for the antimigraine drugs is outside the CNS in areas not limited by the BBB. Potential solution Therefore, it is reasonable to discuss the localization of CGRP and its receptor components in relation to the BBB. The trigeminovascular system, located outside the BBB, has a key role in migraine symptomatology, and it is likely targeted by the novel CGRP drugs that successfully terminate migraine headache. PMID- 29020806 TI - Transcranial static magnetic field stimulation (tSMS) of the visual cortex decreases experimental photophobia. AB - Background Transcranial static magnetic field stimulation (tSMS) reduces cortical excitability in humans. Methods The objective of this study was to determine whether tSMS over the occipital cortex is effective in reducing experimental photophobia. In a sham-controlled double-blind crossover study, tSMS (or sham) was applied for 10 minutes with a cylindrical magnet on the occiput of 20 healthy subjects. We assessed subjective discomfort induced by low-intensity and high intensity visual stimuli presented in a dark room before, during and after tSMS (or sham). Results Compared to sham, tSMS significantly reduced the discomfort induced by high-intensity light stimuli. Conclusions The visual cortex may contribute to visual discomfort in experimental photophobia, providing a rationale for investigating tSMS as a possible treatment for photophobia in migraine. PMID- 29020809 TI - Fibromyalgia as a Predictor of Complex Regional Pain Syndrome After Distal Radius Fracture. AB - BACKGROUND: Complex regional pain syndrome (CRPS) can be a devastating complication following extremity injury, but risk factors are not well understood. The purpose of this study was to investigate the association between fibromyalgia and the development of CRPS after distal radius fracture. METHODS: The PearlDiver Medicare database was queried using International Classification of Diseases, 9th Revision (ICD-9) and Current Procedural Terminology (CPT) codes for diagnoses and treatments of distal radius fractures. Patients were separated into fibromyalgia and control cohorts, and the prevalence of CRPS was measured at 3, 6, 9, and 12 months from the date of injury or procedure. Demographic factors, treatment modality, and comorbid conditions were analyzed by multivariable logistic regression to reduce confounding and identify additional risk factors. RESULTS: Database queries yielded 853 186 patients diagnosed or treated for distal radius fracture, with 6% having previous diagnosis of fibromyalgia. The prevalence of CRPS following distal radius fracture was increased at 3, 6, 9, and 12 months in the fibromyalgia cohort compared with the control c, with a 1-year incidence of 0.51% compared with 0.20% (odds ratio [OR], 2.54, P < .001). Multivariable logistic regression supported the association, with estimated OR of 2.0 ( P < .001). In addition, female gender, surgical or manipulative treatment, and anxiety were positively associated with CRPS, and age >65, diabetes, and heart failure were negatively associated. CONCLUSIONS: While the basis of the association between fibromyalgia and CRPS is unknown, our data suggest that it could serve as a useful predictor of CRPS risk, promoting increased vigilance for CRPS symptoms and earlier recognition and treatment, thereby improving patient outcomes. PMID- 29020808 TI - Acute hemophilic hemarthrosis: is local cryotherapy recommended? AB - INTRODUCTION: The management of acute hemophilic hemarthrosis (AHH) classically has consisted of factor replacement therapy and RICE (rest, ice, compression and elevation). However, there is still a controversy in the literature regarding the role of local cryotherapy (LC) in AHH. Areas covered: The aim of this article is to review the potential role of LC in AHH. Expert commentary: Some authors have reported that LC attenuates joint inflammation and has a positive influence on controlling articular swelling and temperature. However, other authors have stated that low temperature is associated with impairment of coagulation enzyme activity and platelet function. Although some reports have mentioned the benefits of LC in AHH and other have mentioned its adverse events, the data on the topic are still scant and preliminary. Literature of LC in the management of AHH is controversial. Whilst LC has always been considered as an unquestionable necessity in the management of AHH, it should be utilized with caution until a randomized study can solve the dilemma. PMID- 29020810 TI - Effect of high-hydrostatic pressure and moderate-intensity pulsed electric field on plum. AB - Moderate intensity pulse electric fields were applied in plum with the aim to increase bioactive compounds content of the fruit, while high-hydrostatic pressure was applied to preserve the purees. High-hydrostatic pressure treatment was compared with an equivalent thermal treatment. The addition of ascorbic acid during puree manufacture was also evaluated. The main objective of this study was to assess the effects on microorganisms, polyphenoloxidase, color and bioactive compounds of high-hydrostatic pressure, or thermal-processed plum purees made of moderate intensity pulse electric field-treated or no-moderate intensity pulse electric field-treated plums, after processing during storage. The application of moderate intensity pulse electric field to plums slightly increased the levels of anthocyanins and the antioxidant activity of purees. The application of Hydrostatic-high pressure (HHP) increased the levels of bioactive compounds in purees, while the thermal treatment preserved better the color during storage. The addition of ascorbic acid during the manufacture of plum puree was an important factor for the final quality of purees. The color and the bioactive compounds content were better preserved in purees with ascorbic acid. The no inactivation of polyphenoloxidase enzyme with treatments applied in this study affected the stability purees. Probably more intense treatments conditions (high hydrostatic pressure and thermal treatment) would be necessary to reach better quality and shelf life during storage. PMID- 29020812 TI - Prospective longitudinal assessment of the fetal left modified Myocardial Performance Index. AB - INTRODUCTION: The fetal left modified Myocardial Performance Index (Mod myocardial performance index (MPI)) is a measure of systolic versus diastolic time intervals obtained from a single cardiac cycle with ultrasound. It is a measure of global ventricular function and has been investigated for potential utility in fetal conditions associated with cardiac dysfunction. OBJECTIVES: The objective of this study is to compare values from a precisely replicated fetal left Mod-MPI technique to published reference ranges. METHODS: Three hundred and sixty-five nulliparae prospectively underwent fetal left Mod-MPI measurement at 27+0-29+0 and 35+0-37+0 weeks' gestation. Measurements from pregnancies complicated by gestational diabetes mellitus, preeclampsia, or a small-for gestational-age (<10th centile) infant were excluded. Mod-MPI values were compared with three published references created using similar measurement techniques. RESULTS: Compared with one selected reference, at 29+0 and 35+0-37+0 weeks' gestation, 90-100% of our values fell within the 5th-95th percentile range as expected. Thus, this reference range was validated for our population in late pregnancy. However, the expected level of concordance was not seen at 27+0-28+6 weeks'. The other two references to which we compared our Mod-MPI values demonstrated poor concordance, especially at 27+0-29+0 weeks'. Pearson interobserver correlation was also improved at 35+0-37+0 weeks' at 0.434, compared with 0.083 at 27+0-29+0 weeks' gestation. CONCLUSIONS: Concordance and interobserver variability between our cohort and similar populations were both improved at 35+0-37+0 weeks' compared with 27+0-29+0 weeks' gestation. Overall, variable Mod-MPI reproducibility across gestations limits clinical application, especially earlier in pregnancy. Manual Mod-MPI measurement should be considered most reliable in late pregnancy until automated MPI measurement is possible. PMID- 29020811 TI - Delaying microbial proliferation in freshly peeled shallots by active packaging incorporating ethanol vapour-controlled release sachets and low storage temperature. AB - This research was conducted to investigate effects of ethanol vapour released in active packaging and storage temperatures on the quality of freshly peeled shallots. The package tested was a solid polypropylene tray incorporating an ethanol vapour-controlled release sachet. The sachet was made of an aluminium foil film on one side and either low-density polyethylene or nylon/polyethylene on the other. Individual sachets contained silica gel adsorbent as the carrier pre-loaded with ethanol. One sachet was placed in each tray containing the peeled shallots and the tray was heat sealed with the low-density polyethylene film lid. Packages were stored at either 10 or 25 C for 10 d. Trays containing only peeled shallots were designated as controls. High storage temperature stimulated quality changes in the shallots. Although ethanol vapour accumulated in the active package headspace, the extent to which ethanol concentrations increased within the shallots was not significantly different from that in the control packages. Microbial proliferation in terms of yeast and mould counts could be delayed through a combination of 10 C and ethanol vapour released from the low-density polyethylene sachet. The ethanol vapour accumulated in the packages did not have a significant effect on mass loss, firmness, and colour changes in the peeled shallots, or on the concentrations of oxygen and carbon dioxide in the packages. PMID- 29020813 TI - Early neonatal hypoglycemia: incidence of and risk factors. A cohort study using universal point of care screening. AB - OBJECTIVE: The objective of this study is to determine the true incidence of early neonatal hypoglycemia and to confirm potential risk factors. STUDY DESIGN: The study was conducted at tertiary Medical Center in Israel, between June and September 2014. First blood glucose concentrations of all infants admitted to the nursery were measured using a "point of care" analyzer (Accu-Chek). We recorded risk factors for hypoglycemia such as birth weight, gestational age, maternal diabetes and demographics and analyzed their association with two hypoglycemia cutoffs: 40 and 47 mg/dl. RESULTS: Of 4000 newborns admitted during that period, 3595 were analyzed after excluding 405 who had missing data. Glucose level was obtained at a mean age of 74 +/- 30 min. One hundred and twenty-four newborns (3.4%) had blood glucose levels below 40 mg/dl and 435 (12.1%) below 47 mg/dl. Univariate analyses revealed that gestational age, maternal diabetes, low birth weight (<2500 g), and twin delivery were associated with early neonatal hypoglycemia. Other risk factors (e.g. large or small for gestational age, birth weight >3800 g) were not. In multivariate analysis, gestational age remained the strongest association, while maternal diabetes and low birth weight became non significant. CONCLUSIONS: We showed a high occurrence of early hypoglycemia in normal newborns using universal screening. The strongest risk factor was early gestational age. Surprisingly, incidence of early hypoglycemia in the presence of other classical risk factors was like that of the general population. PMID- 29020815 TI - 'Bony' cubital tunnel syndrome caused by heterotopic ossification. AB - We reported a rare case of cubital tunnel syndrome caused by heterotopic ossification after burns. The ulnar nerve was encircled by bony tunnel structure which cause nerve compression, resulting in ulnar nerve lesion. Our case sheds light on possible etiological association which may help clinical management. PMID- 29020814 TI - The Effect of Socioeconomic Factors on Outcomes of Distal Radius Fractures: A Systematic Review. AB - BACKGROUND: Socioeconomic factors are known to affect outcomes for both medical and surgical conditions. The purpose of this systematic review was to assess the current evidence regarding the effect of socioeconomic factors such as income, geographic location, educational level, and occupation on clinical outcomes after distal radius fractures. METHODS: A systematic search strategy was performed to identify studies commenting on the effect of socioeconomic factors on clinical outcomes following open or closed distal radius fracture repair. Abstract and full-text screening was performed by 2 independent reviewers, and articles were evaluated by Structured Effectiveness Quality Evaluation Scale (SEQES). Treatment outcomes of interest included, but were not limited to, pain, function, range of motion, and grip strength. RESULTS: There were 1745 studies that met our inclusion and exclusion criteria for abstract screening. Of these, 48 studies met our inclusion criteria for full-text screening and 20 studies met our criteria for quality analysis with the SEQES score. There were 3 studies of high quality, 16 of moderate quality, and 1 of low quality. Meta-analyses were not possible due to the variability in outcomes of interest across papers. CONCLUSIONS: Patient factors indicative of socioeconomic status are relevant predictors of functional outcome after distal radius fractures. There is currently limited evidence in this area of research, and further examination should be considered to improve outcomes from a patient and system standpoint. PMID- 29020816 TI - Predictors of adverse perinatal outcomes in intrahepatic cholestasis of pregnancy with dichorionic diamniotic twin pregnancies. AB - OBJECTIVE: The aim of our study was to investigate the predictors of adverse perinatal outcomes in intrahepatic cholestasis of pregnancy (ICP) with dichorionic diamniotic (DCDA) twin pregnancies. METHODS: This study was a retrospective study of women diagnosed with ICP and DCDA twin pregnancies in Chengdu's women and children's central hospital. These patients were subdivided into mild and severe ICP groups according to total bile acid (TBA) level. The clinical characteristics and perinatal outcomes were collected and compared between the two groups. Logistic regression analysis was developed to evaluate predictors of adverse perinatal outcomes. RESULTS: About 134 cases were included in the study. Eighty-four cases were in the mild ICP group, and the other 50 cases were in the severe ICP group. Level of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), total bilirubin (TBIL), and direct bilirubin (DBIL) in the severe ICP group were significant higher than those in the mild ICP group. The rate of delivery before 34 gestational weeks, meconium-stained amniotic fluid, and composite adverse neonatal outcome were higher in the severe ICP group than those in the mild ICP group. After adjusting for confounders, ICP onset gestational age (GA) <30 weeks and AST >200U/l were associated with GA at delivery <34 weeks. ALP >400U/l was an independent risk factor of meconium-stained amniotic fluid. ICP onset GA <30 weeks was an independent risk factor of composite adverse neonatal outcome. CONCLUSION: ICP onset GA <30 weeks, TBA >40 umol/l, AST >200U/l, and ALP >400U/l were associated with composite adverse perinatal outcomes in ICP with DCDA twin pregnancies. For those patients with these characteristics, fetal surveillance and treatment should be enhanced. PMID- 29020817 TI - Use of the Social Problem Solving Inventory-Revised With Forensic Populations: A Psychometric Critique. AB - The Social Problem Solving Inventory-Revised (SPSI-R) is a popular psychometric tool used with multiple populations to assess individual problem solving ability. Problem solving deficits have been implicated within forensic literature, and therefore, assessment of these skills is essential to aid decision making and appraisal of treatment change in forensic populations. This review discusses the extent of the validity and reliability of the SPSI-R within forensic populations, and concludes that while the tool has some valid psychometric properties, further studies using larger forensic samples and being inclusive of more subgroups in forensic contexts are needed to provide reliable group comparison norms. Overall, users of the SPSI-R should be aware of the strengths and limitations of using this tool with a forensic population. Impression management is also a consideration when using the SPSI-R within forensic settings. PMID- 29020818 TI - Can We Hasten Development? Effects of Treatment on Psychosocial Maturity. AB - Research continues to highlight factors associated with developmental immaturity, including persistent delinquency. This article examines whether aspects of developmental immaturity, psychosocial maturity, and emotion regulation are responsive to therapeutic intervention. Fifty-seven female youth in secure residential juvenile justice facilities participated in a randomized controlled trial of the Juvenile Justice Anger Management (JJAM) Treatment for Girls, an intervention that targets skills relevant to psychosocial maturity, including problem-solving, coping, and emotion regulation. Participants in JJAM showed increases in temperance, providing evidence that intervention might stimulate psychosocial development. Implications for treatment, evaluation, and measurement of psychosocial maturity are discussed. PMID- 29020819 TI - Update on relapsed ovarian cancer treatment: from new consensus to daily clinical practice. AB - The outcome of the 5th Ovarian Cancer Consensus Conference (OCCC) held in November 2015 in Tokyo, Japan, was the development of new and revised consensus statements to guide clinical investigations in ovarian cancer. The OCCC statements may also have direct application to daily clinical practice. This review examines the consensus statements for recurrent ovarian cancer and their impact on treatment paradigms. Importantly, patients are no longer to be categorized by the platinum-free interval (with its arbitrary 6-month cut-off points) but according to the question: 'is platinum still an option for the patient?' Another important change since the 4th OCCC in 2010 is the inclusion of BRCA mutation status when defining patient subgroups for entry into clinical trials. PMID- 29020820 TI - Managing relapsed ovarian cancer in a rapidly evolving landscape. PMID- 29020821 TI - When nonplatinum is the answer: the role of trabectedin plus pegylated liposomal doxorubicin in recurrent ovarian cancer. AB - Trabectedin + pegylated liposomal doxorubicin (PLD) offers a well tolerated and effective nonplatinum, nontaxane alternative for treatment of ovarian cancer patients with a treatment-free interval after platinum beyond 6 months, especially for those relapsing between 6 and 12 months and those who are not candidates to receive platinum-based therapy. Using the nonplatinum trabectedin + PLD combination gives patients time to recover from platinum-related toxicities and may restore platinum sensitivity in tumor cells. The sequence effect, by which intercalation of trabectedin + PLD between platinum regimens may enhance the activity of next platinum and improve survival, is currently under investigation in the Phase III prospective INternational OVArian cancer patients Trial with YONdelis. PMID- 29020822 TI - Trabectedin mechanism of action and platinum resistance: molecular rationale. AB - Trabectedin presents a complex mode of action affecting key cell biology processes in tumor cells and in the tumor microenvironment. In ovarian cancer patients with a platinum treatment-free interval of 6-12 months treated with trabectedin + pegylated liposomal doxorubicin (PLD) or single-agent PLD, and retreated with platinum after relapse, overall survival was significantly prolonged in the trabectedin + PLD group. Mechanisms by which trabectedin restores tumor sensitivity to platinum include its interaction with components of the nucleotide excision repair machinery in tumor cells and inhibition of inflammatory mediators such as IL-6 in the tumor microenvironment. Additionally, BRCA mutations and associated homologous recombination repair deficiency may contribute to enhanced sensitivity to trabectedin observed in BRCA-mutated patients with ovarian cancer. PMID- 29020823 TI - Platinum or nonplatinum in recurrent ovarian cancer: that is the question. AB - Although platinum-based chemotherapy continues to be the first-line option for advanced ovarian cancer and for platinum recurrences beyond 6 months, platinum rechallenge is not the best approach for some patients, such as those with residual toxicities, platinum-related hypersensitivity reactions or limited platinum-sensitivity (i.e., a platinum treatment-free interval [TFIp] of 6-12 months). Results of the MITO-8 study called into question the role of single agent nonplatinum-based regimens in this specific subset of ovarian cancer patients. The current article summarizes the results of the MITO-8 study highlighting key limitations, and discusses the role of the nonplatinum-based combination of trabectedin + pegylated liposomal doxorubicin in the management of ovarian cancer patients who relapse between 6 and 12 months after last platinum. PMID- 29020824 TI - Biomarkers of oxidative stress and protein-protein interaction in chronic obstructive pulmonary disease. AB - CONTENT: The increased oxidative stress in chronic obstructive pulmonary disease (COPD) patients is the result of increased inhaled oxidants, generated by various cells of the airways. OBJECTIVE: The investigation included measurements of malondiadehyde (MDA), uric acid, ascorbic acid, and matrix metalloproteinase-12 (MMP-12) in COPD patient. We also performed genetic analysis for protein-protein interaction (PPI) network. MATERIALS AND METHODS: The study was conducted on healthy subjects with normal lung function (NS, 14 subjects) and 28 patients (Global Initiative for Chronic Obstructive Lung Disease (Gold) 1 and Gold 2) with COPD. RESULTS: There was significant (p < .001) increase in MMP-12, MDA and uric acid levels as compared to healthy controls. A significant (p < .001) decline in ascorbic acid level was observed in COPD patients. The PPI was found to be 0.833 which indicated that proteins present in COPD are linked. DISCUSSION AND CONCLUSION: This study suggests oxidative stress plays an important role in COPD and the PPI provide indication that proteins present in COPD are linked. PMID- 29020825 TI - The yield of the prenatal work-up in intrauterine growth restriction and the spectrum of fetal abnormalities detected postnatally ?. AB - OBJECTIVE: To evaluate the yield of work-up in intrauterine growth restriction (IUGR) pregnancies and their outcomes. MATERIALS AND METHODS: Retrospective data regarding prenatal work-up (serology, genetic testing and imaging), and neonatal outcomes of 198 IUGR pregnancies (estimated fetal weight <10th percentile) were analyzed. RESULTS: IUGR was isolated in 72 cases. Work-up performed in 158 (80%) cases was positive in 4 (2.5%). No abnormalities were detected in prenatal genetic testing. Echocardiogram performed in 27 cases was abnormal in 3 (11.1%). Serological testing performed in 150 pregnancies (75.8%) detected 1 case (0.7%) of cytomegalovirus (CMV) infection. Thirteen neonates (6.5%) were diagnosed with significant health problems. A positive work-up and significant postnatal health problems were not correlated with IUGR severity, symmetry or additional concurrent findings. CONCLUSION: The yield of IUGR work-up is not clear and is probably highest for fetal echocardiography. The rate of significant adverse outcomes after birth is increased in IUGR pregnancies. PMID- 29020826 TI - Redefining Zone II: Anatomy of the Flexor Digitorum Superficialis Insertion. AB - BACKGROUND: Flexor zone II is defined as the region spanning the proximal aspect of the A1 pulley to the insertion of the flexor digitorum superficialis (FDS) tendon. Descriptions of the FDS insertion are inconsistent in the literature, but zones of injury are frequently determined with reference to superficial landmarks. The purpose of this study was to describe the footprint of the FDS insertion and define its relationship to the proximal interphalangeal (PIP) skin crease. METHODS: The FDS insertion on the index, middle, ring, and small fingers was dissected in 6 matched pairs of fresh-frozen cadaveric hands. A Kirschner wire was used to mark the level of the PIP skin crease on bone before measurements of the FDS footprint and its position relative to the PIP skin crease were made using digital calipers. RESULTS: The radial and ulnar FDS slips inserted a mean distance of 3.22 mm from the distal aspect of the PIP skin crease and varied by digit. The mean distal extent of the FDS insertion was 8.29 mm. The mean length of the insertion of each FDS slip was 5.15 mm and the mean width was 1.9 mm. CONCLUSIONS: The radial and ulnar FDS slips insert on average 3.22 mm distal to the PIP skin crease and vary by digit. Knowledge of the FDS insertion is clinically relevant when differentiating between flexor zone I and zone II injuries, planning surgical approaches to the finger, and in guiding patient expectations for surgery given the variability in outcome based on zone of injury. PMID- 29020828 TI - Timing of antibiotic prophylaxis in cesarean section: retrospective, difference in-differences estimation of the effect on surgical-site-infection. AB - BACKGROUND: Cesarean section (CS) is one of the most common surgical procedures performed worldwide. Surgical-site-infection (SSI) occurs in approximately 5-10% of CS. The benefit of prophylactic antibiotics for prevention of SSI has been demonstrated in the literature. The optimal timing of antibiotic prophylaxis (prior to surgical incision versus after cord clamping) was investigated in recent studies. In January 2014, the Israeli Ministry of Health introduced a national quality measure which monitors the administration of prophylactic antibiotics in CS. The custom clinical practice in our medical center was to administer prophylactic antibiotics immediately after cord clamping. Upon introduction of the national quality measurement program, the practice was changed to administration of antibiotics prior to surgical incision. Our objective was to examine the effect of timing of prophylactic antibiotics administration on the incidence of SSI following CS, in a single medical center that performs a large volume of deliveries, with a low rate of CS. MATERIAL AND METHODS: Taking advantage of a discrete change in clinical practice, we used retrospective data and applied difference-in-differences design to estimate the effect of the timing of prophylactic antibiotics administration on SSI rates. The analysis included all CSs performed during 2012-2015 and all hysterectomies conducted during the study period. RESULTS: The coverage rates of prophylactic antibiotics in CS before and after the policy change were 99.10% and 99.03%, respectively. The rates of SSI following CS, before and after the policy change, were 2.63% (n = 2499) and 2.32% (n = 3840), respectively. The rates of SSI following hysterectomy, before and after the policy, change were 6.82% (n = 396) and 7.09% (n = 437), respectively. Difference-in-differences (DID) estimates of the effect of policy change on the incidence of SSI in linear and logistic regression models were not significant (B = -0.6%, p = .64; odds ratio = 0.84, p = .58, respectively). CONCLUSIONS: We found no effect of the timing of prophylactic antibiotic administration (prior to surgical incision versus after cord clamping) on SSI rates following CS. PMID- 29020829 TI - Preferences in Sleep Position Correlate With Nighttime Paresthesias in Healthy People Without Carpal Tunnel Syndrome. AB - BACKGROUND: Carpal tunnel syndrome has been associated with sleep position preferences. The aim of this study is to assess self-reported nocturnal paresthesias and sleeping position in participants with and without carpal tunnel syndrome diagnosis to further clinical knowledge for preventive and therapeutic interventions. METHODS: A cross-sectional survey study of 396 participants was performed in young adults, healthy volunteers, and a patient population. Participants were surveyed on risk factors for carpal tunnel syndrome, nocturnal paresthesias, and sleep preferences. Binary logistic regression analysis was performed comparing participants with rare and frequent nocturnal paresthesias. Subanalyses for participants without carpal tunnel syndrome under and over 21 years of age were performed on all factors significantly associated with subclinical compression neuropathy in the overall population. RESULTS: Thirty three percent of the study population experienced nocturnal paresthesias at least weekly. Increased body mass index ( P < .001) and sleeping with the wrist flexed ( P = .030) were associated with a higher frequency of nocturnal paresthesias. Side sleeping was associated with less frequent nocturnal symptoms ( P = .003). In participants without carpal tunnel syndrome, subgroup analysis illustrated a relationship between nocturnal paresthesias and wrist position. In participants with carpal tunnel syndrome, sleeping on the side had a significantly reduced frequency of nocturnal paresthesias. CONCLUSION: This study illustrates nocturnal paresthesias in people without history of carpal tunnel syndrome including people younger than previously reported. In healthy patients with upper extremity subclinical compression neuropathy, sleep position modification may be a useful intervention to reduce the frequency of nocturnal symptoms prior to developing carpal tunnel syndrome. PMID- 29020830 TI - A novel biomarker explaining the role of oxidative stress in exercise and l tyrosine supplementation: thiol/disulphide homeostasis. AB - The present study aimed to evaluate the relationship between exercise and both l tyrosine and oxidative stress using thiol/disulphide homeostasis via a novel biomarker in rats. Following the completion of the exercise and l-tyrosine protocol, serum total thiol, native thiol, and disulphide concentrations were determined using a novel automated measurement method. Compared with the control group, serum dynamic disulphide levels were significantly lower in the E group (116.75 +/- 10.49; p < .05) and the highest in the LT group (151.0 +/- 5.84). The lowest oxidised thiol (49.75 +/- 6.18; p = .087) and the highest reduced thiol (75.38 +/- 3.16; p = .079) rates were determined to be in the E group. The highest oxidised thiol value was observed in the LT group. Exercise positively affects thiol/disulphide homeostasis, which is a novel indicator of oxidant antioxidant parameters. Additionally, l-tyrosine appears to be more convenient combined with exercise. The new method used in our study proposes a promising, practical, and useful method for assessing the oxidative stress parameters. PMID- 29020832 TI - Cultural Adaptation and Psychometric Properties of the Shirom-Melamed Vigor Measure (SMVM) With Workers in Spain. AB - Shirom's proposal about engagement focuses on vigor. Under this approach, vigor is considered an affect that mediates the relationship between resources, behaviors, and attitudes related to psychological functioning and health. It is important for occupational health professionals to have adequate measures of this construct. The Shirom-Melamed vigor measure (SMVM) was developed to capture this sense of energy comprising three components (physical strength, emotional energy, and cognitive liveliness). In the absence of a Spanish version of the SMVM, our aim is to perform a cultural adaptation and to further analyze its psychometric properties. In Study 1, we culturally adapt the SMVM in Spanish samples. It incorporates a careful development of a three-step procedure according to the International Test Commission and qualitative analyses to ensure a consensus version. Twenty-six individuals were involved. In Study 2, the responses of 203 workers from different organizations show the validity and reliability of the instrument. Confirmatory factor analyses yield a model with three interrelated dimensions showing good fit indices. Furthermore, concurrent validity is demonstrated. Finally, we discuss the usefulness of the SMVM for occupational health professionals. PMID- 29020827 TI - The frequency and clinical significance of intra-amniotic inflammation in twin pregnancies with preterm labor and intact membranes. AB - OBJECTIVE: The objective of this study is to evaluate the frequency and clinical significance of intra-amniotic inflammation in twin pregnancies with preterm labor and intact membranes. STUDY DESIGN: Amniotic fluid (AF) was retrieved from both sacs in 90 twin gestations with preterm labor and intact membranes (gestational age between 20 and 34 6/7 weeks). Preterm labor was defined as the presence of painful regular uterine contractions, with a frequency of at least 2 every 10 min, requiring hospitalization. Fluid was cultured and assayed for matrix metalloproteinase-8. Intra-amniotic inflammation was defined as an AF matrix metalloproteinase-8 concentration >23 ng/mL. RESULTS: The prevalence of intra-amniotic inflammation for at least 1 amniotic sac was 39% (35/90), while that of proven intra-amniotic infection for at least one amniotic sac was 10% (9/90). Intra-amniotic inflammation without proven microbial invasion of the amniotic cavity was found in 29% (26/90) of the cases. Intra-amniotic inflammation was present in both amniotic sacs for 22 cases, in the presenting amniotic sac for 12 cases, and in the non-presenting amniotic sac for one case. Women with intra-amniotic inflammation observed in at least one amniotic sac and a negative AF culture for microorganisms had a significantly higher rate of adverse pregnancy outcome than those with a negative AF culture and without intra amniotic inflammation (lower gestational age at birth, shorter amniocentesis-to delivery interval, and significant neonatal morbidity). Importantly, there was no significant difference in pregnancy outcome between women with intra-amniotic inflammation and a negative AF culture and those with a positive AF culture. CONCLUSION: Intra-amniotic inflammation is present in 39% of twin pregnancies with preterm labor and intact membranes and is a risk factor for impending preterm delivery and adverse outcome, regardless of the presence or absence of bacteria detected using cultivation techniques. PMID- 29020831 TI - Evaluation of the Role of Laparoendoscopic Single-Site Surgery vs Minilaparoscopy for Treatment of Upper Urinary Tract Pathologies: Prospective Randomized Comparative Study. AB - OBJECTIVES: To present the first prospective randomized comparison between laparoendoscopic single-site surgery (LESS) and minilaparoscopy (ML) for treatment of upper urinary tract pathologies. PATIENTS AND METHODS: Between January 2013 and June 2015, patients with different upper urinary pathologies were blindly randomized to both LESS and ML. All procedures were done by single experienced surgeon. Both cohorts were compared regarding demographic data, peri and postoperative characteristics, and visual analog pain scale (VAS). Cosmetic outcome was assessed after 12 months using patient scar assessment scale (PSAS) and observer scar assessment scale (OSAS). RESULTS: Sixty patients were randomized into two equal groups with comparable demographic and preoperative characteristics. Indications included nephrectomy, pyeloplasty, cyst marsupialization, adrenalectomy, and repair of retrocaval ureter. Operative time was 167 +/- 24 and 145 +/- 39 minutes in LESS and ML groups, respectively (p = 0.09). Estimated blood loss was 59 +/- 34 and 43 +/- 42 mL in both groups, respectively (p = 0.2). VAS was 1.7 +/- 0.6 and 2.8 +/- 0.5 in both groups, respectively (p = 0.02). PSAS and OSAS were 5.9 +/- 0.85 and 10.6 +/- 1.98 vs 8.9 +/- 0.9 and 13.5 +/- 6.3 in both groups, respectively (p > 0.05). There were no intraoperative complications, conversions to open surgery, or conventional laparoscopy in both groups. Mean postoperative Diclofenac Na was 151.7 +/- 35.6 and 169.7 +/- 47.3 mg in both groups, respectively (p = 0.04). Postoperative complications rate and hospital stay were comparable between both groups. CONCLUSION: Both LESS and ML have comparable operative time, blood loss, complication rate, and hospital stay in treatment of upper urinary tract pathologies. However, LESS is associated with less analgesic requirement and better cosmetic outcome. PMID- 29020833 TI - Using Generalizability Theory to Inform Optimal Design for a Nursing Performance Assessment. AB - The promotion of competency of nurses and other health-care professionals is a goal shared by many stakeholders. In nursing, observation-based assessments are often better suited than paper-and-pencil tests for assessing many clinical abilities. Unfortunately, few instruments for simulation-based assessment of competency have been published that have undergone stringent reliability and validity evaluation. Reliability analyses typically involve some measure of rater agreement, but other sources of measurement error that affect reliability should also be considered. The purpose of this study is three-fold. First, using extant data collected from 18 nurses evaluated on 3 Scenarios by 3 Raters, we utilize generalizability (G) theory to examine the psychometric characteristics of the Nursing Performance Profile, a simulation-based instrument for assessing nursing competency. Results corroborated findings of previous studies of simulation-based assessments showing that obtaining desired score reliability requires substantially greater numbers of scenarios and/or raters. Second, we provide an illustrative exemplar of how G theory can be used to understand the relative magnitudes of sources of error variance-such as scenarios, raters, and items-and their interactions. Finally, we offer general recommendations for the design and psychometric study of simulation-based assessments in health-care contexts. PMID- 29020834 TI - High transverse skin incisions may reduce wound complications in obese women having cesarean sections: a pilot study. AB - OBJECTIVE: Women having cesarean section have a high risk of wound complications. Our objective was to determine whether high transverse skin incisions are associated with a reduced risk of cesarean wound complications in women with BMI greater than 40. METHODS: A retrospective cohort study was undertaken of parturients ages 18-45 with BMI greater than 40 having high transverse skin incisions from January 2010 to April 2015 at a tertiary maternity hospital. Temporally matched controls had low transverse skin incisions along with a BMI greater than 40. The primary outcome, wound complication, was defined as any seroma, hematoma, dehiscence, or infection requiring opening and evacuating/debriding the wound. Secondary outcomes included rates of endometritis, number of hospital days, NICU admission, Apgar scores, birth weight, and gestational age at delivery. Analysis of outcomes was performed using two-sample t-test or Wilcoxon rank-sum test for continuous variables and Fisher's exact test for categorical variables. RESULTS: Thirty-two women had high transverse incisions and were temporally matched with 96 controls (low transverse incisions). The mean BMI was 49 for both groups. There was a trend toward reduced wound complications in those having high transverse skin incisions, but this did not reach statistical significance (15.63% versus 27.08%, p = .2379). Those having high transverse skin incisions had lower five minute median Apgar scores (8.0 versus 9.0, p = .0021), but no difference in umbilical artery pH values. The high transverse group also had increased NICU admissions (28.13% versus 5.21%, p = .0011), and early gestational age at delivery (36.8 versus 38.0, p = .0272). CONCLUSION: High transverse skin incisions may reduce the risk of wound complications in parturients with obesity. A study with more power should be considered. PMID- 29020835 TI - Quantifying benefits of using health information exchange to support public health STI reporting and treatment in Western New York. AB - OBJECTIVE: To calculate average savings of using health information exchange (HIE) for demographic and treatment requests for chlamydia and gonorrhoea in Western New York, specifically the Erie County Department of Health and its catchment area. METHOD: We conducted a mixed-method case study. Qualitative methods included interviews, document review, and workflow mapping, which were used as the inputs to identify time savings. Case rates, time savings, and salary averages were used to calculate average savings. RESULTS: The avoided demographic information requests resulted in time and money savings (range of USD$2312 USD$4624 for chlamydia and USD$809-USD$1512 for gonorrhoea) as did avoided treatment requests (range of USD$671-USD$2803 for chlamydia and USD$981-USD$1635 for gonorrhoea). DISCUSSION: HIE supported sexually transmitted infection (STI) treatment by making it easier for public health staff to identify and act upon STI diagnoses. Availability of information online resulted in less reliance on provider offices for demographic and treatment information. CONCLUSION: Results indicated that using HIE to support treatment and management of STIs can save public health staff time spent on obtaining demographic and treatment information. Other public health departments could use HIE for this and other types of disease surveillance activities. Considering public health needs in HIE development and use can improve efficiency of public health services and enhance effectiveness of activities. PMID- 29020836 TI - Are mental illnesses stigmatized for the same reasons? Identifying the stigma related beliefs underlying common mental illnesses. AB - BACKGROUND: Although mental health stigmatization has myriad pernicious consequences, it remains unknown whether mental disorders are stigmatized for the same reasons. AIMS: This study identified the stigma-related beliefs that were associated with several common mental illnesses (Study 1), and the extent to which those beliefs predicted stigmatization (Study 2). METHODS: In Study 1, we used multidimensional scaling to identify the stigma-related beliefs attributed to nine common mental disorders (e.g. depression, schizophrenia). Study 2 explored whether beliefs commonly associated with depression predicted its stigmatization. RESULTS: In Study 1, we found that the nine mental illnesses differed from each other on two dimensions: social desirability and controllability. In Study 2, we found that regardless of participants' own depression status, their perceptions that depression is controllable predicted depression-related stigmatization. CONCLUSIONS: Our results suggest that stigmatization toward different mental illnesses stem from combinations of different stigmatized beliefs. PMID- 29020837 TI - Evaluating the completeness of the national ALS registry, United States. AB - Our objective was to evaluate the completeness of the United States National ALS Registry (Registry). We compared persons with ALS who were passively identified by the Registry with those actively identified in the State and Metropolitan Area ALS Surveillance project. Cases in the two projects were matched using a combination of identifiers, including, partial social security number, name, date of birth, and sex. The distributions of cases from the two projects that matched/did not match were compared and Chi-square tests conducted to determine statistical significance. There were 5883 ALS cases identified by the surveillance project. Of these, 1116 died before the Registry started, leaving 4767 cases. We matched 2720 cases from the surveillance project to those in the Registry. The cases identified by the surveillance project that did not match cases in the Registry were more likely to be non-white, Hispanic, less than 65 years of age, and from western states. The methods used by the Registry to identify ALS cases, i.e. national administrative data and self-registration, worked well but missed cases. These findings suggest that developing strategies to identify and promote the Registry to those who were more likely to be missing, e.g. non-white and Hispanic, could be beneficial to improving the completeness of the Registry. PMID- 29020840 TI - Self-determining medical leadership needs of occupational health physicians. AB - Purpose The purpose of this study was to explore which factors motivate doctors to engage in leadership roles and to frame an inquiry of self-assessment within Self-Determination Theory (SDT) to identify the extent to which a group of occupational health physicians (OHPs) was able to self-determine their leadership needs, using a National Health Service (NHS) England competency approach promoted by the NHS England Leadership Academy as a self-assessment leadership diagnostic. Medical leadership is seen as crucial to the transformation of health-care services, yet leadership programmes are often designed with a top-down and centrally commissioned "one-size-fits-all" approach. In the UK, the Smith Review (2015) concluded that more decentralised and locally designed leadership development programmes were needed to meet the health-care challenges of the future. However, there is an absence of empirical research to inform the design of effective strategies that will engage and motivate doctors to take up leadership roles, while at the same time, health-care organisations continue to develop formal leadership roles as a way to secure medical leadership engagement. The problem is further compounded by a lack of validated leadership qualities assessment instruments which support researching this problem. Design/Methodology/approach The analysis draws on a sample of about 25 per cent of the total population size of the Faculty of Occupational Medicine ( n = 1,000). The questionnaire used was the Leadership Qualities Framework tool as a form of online self-assessment ( NHS Leadership Academy, 2012 ). The data were analysed using descriptive statistics and simple inferential methods. Findings OHPs are open about reporting their leadership strengths and leadership development needs and recognise leadership learning as an ongoing development need regardless of their level of personal competence. This study found that the single most important factor to affect a doctor's confidence in leadership is their experience in a management role. In multivariate regression, management experience accounted for the usefulness of leadership training, suggesting that doctors learn best through applied "leadership learning" as opposed to theory driven programmes. Drawing on SDT ( Deci and Ryan, 1985 ; 2000 ; Ryan and Deci, 2000 ), this article provides a theoretical framework that helps to understand those doctors who are likely to engage in leadership and management activities in the organisation. More choice and self-determination of medical leadership programmes are likely to result in more relevant leadership learning that builds on doctors' previous experience in this area. Research limitations/implications While this study benefitted from a large sample size, it was limited to the use of purely quantitative methods. Future studies would benefit from the application of a mixed methodology to combine quantitative data with one-to-one interviews or a focus group. Practical implications This study suggests that doctors are able to determine their own learning needs reliably and that they are more likely to increase their confidence in leadership and management if they are exposed to leadership and management experience. Originality/value This is the first large scale study of this kind with a large sample within a single medical specialty. The study is considered as insider research, as the first author is an OHP with knowledge of how to engage OHPs in this work. PMID- 29020839 TI - Learning from the Longitudinal Outcomes of Children with Hearing Impairment (LOCHI) study: summary of 5-year findings and implications. AB - OBJECTIVE: This article summarises findings of the Longitudinal Outcomes of Children with Hearing Impairment (LOCHI) study, and discusses implications of the findings for research and clinical practice. DESIGN: A population-based study on outcomes of children with hearing loss. Evaluations were conducted at five years of age. STUDY SAMPLE: Participants were 470 children born with hearing loss between 2002 and 2007 in New South Wales, Victoria and Queensland in Australia, and who first received amplification or cochlear implantation by three years of age. RESULTS: The earlier hearing aids or cochlear implants were fitted, the better the speech, language and functional performance outcomes. Better speech perception was also associated with better language and higher cognitive abilities. Better psychosocial development was associated with better language and functional performance. Higher maternal education level was also associated with better outcomes. Qualitative analyses of parental perspectives revealed the multiple facets of their involvement in intervention. CONCLUSIONS: The LOCHI study has shown that early fitting of hearing devices is key to achieving better speech, language and functional performance outcomes for children with hearing loss. The findings are discussed in relation to changes in clinical practice and directions for future research. PMID- 29020838 TI - Safety and Efficacy of AAV5 Vectors Expressing Human or Canine CNGB3 in CNGB3 Mutant Dogs. AB - Achromatopsia is an inherited retinal disorder of cone photoreceptors characterized by markedly reduced visual acuity, extreme light sensitivity, and absence of color discrimination. Approximately 50% of cases are caused by mutations in the cone photoreceptor-specific cyclic nucleotide gated channel beta subunit (CNGB3) gene. Studies in CNGB3-mutant dogs showed that subretinal injection of an AAV vector expressing human CNGB3, which has 76% amino acid identity with canine CNGB3, driven by a 2.1 kb human red cone opsin promoter (PR2.1) and packaged in AAV5 capsids (AAV5-PR2.1-hCNGB3) rescued cone photoreceptor function, but at high doses was associated with an inflammatory response (focal chorioretinitis) consistent with immune-mediated toxicity. AAV vectors containing the PR2.1 promoter packaged in AAV5 capsids and expressing either the native canine CNGB3 (AAV5-PR2.1-cCNGB3) or the human CNGB3 (AAV5-PR2.1 hCNGB3) were evaluated at different dose levels in CNGB3-mutant dogs. The vector expressing canine CNGB3 achieved somewhat better rescue of cone function but unexpectedly was associated with a greater degree of retinal toxicity than the vector expressing human CNGB3. Very low-level T-cell immune responses to some AAV or CNGB3 peptides were observed in animals that received the higher vector dose. There was a more than twofold increase in serum neutralizing antibodies to AAV in one of three animals in the low-dose group and in two of three animals in the high-dose group. No serum anti-hCNGB3 antibodies were detected in any animal. The results of this study do not support the hypothesis that the focal chorioretinitis seen with high doses of AAV5-PR2.1-hCNGB3 in the initial studies was due to an immune response to human CNGB3. PMID- 29020841 TI - Empathy and privacy in obstetrics: Students abroad. PMID- 29020842 TI - Origins of School Nursing. AB - This study investigated the origin and implementation of school nursing in New York City, using traditional historical methods with a social history framework. The intent of this research was to produce a comprehensive historical analysis of school nursing at the turn of the 20th century in order to provide a historical framework to promote the work of school nurses today. Understanding the core fundamental concepts of school nursing from its origins and the significance of the emergence of community support for the role of the school nurse at the turn of the 20th century can inform current policy to back school nursing and school health today. PMID- 29020843 TI - Interview about the GIFT Trial, Pharmacogenetics, and Warfarin. PMID- 29020844 TI - Nucleoside/nucleotide analogues in the treatment of chronic hepatitis B infection during pregnancy: a systematic review. AB - BACKGROUND: Women of childbearing age who have developed chronic hepatitis B (CHB) infection, especially HBeAg-positive highly viraemic pregnant women, are largely responsible for the familial transmission of the infection. Therefore, choosing the most effective and safest antiviral medications to manage pregnant CHB patients is of crucial importance. MATERIALS AND METHODS: The PubMed and Scopus databases were searched through September 2017, for all the journal articles possessing original results regarding treatment of CHB pregnant women with any nucleos(t)ide analogue (NA) therapies, including lamivudine (LAM), adefovir (ADV), entecavir (ETV), telbivudine (LdT), and tenofovir (TDF). RESULTS: After the primary search, 882 studies were recognized, and updating the searching results, 41 journal articles with original data were investigated, involving 3874 newborn infants from mothers with CHB, and their mothers completed follow-up until the delivery. The most important basic data and results regarding the efficacy of drugs, the rate of vertical transmission, safety issues associated with pairs of mothers and infants, median levels of HBV DNA, breastfeeding data, and rate of rate of vaccination success were collected. Moreover, possible key conclusion, recommendations, and learned lessons were discussed. Among the evaluated NAs, all LAM was efficient and safe. LdT was found to be very effective but had some safety concerns. In contrast, TDF had the advantages of both effectiveness and safety. CONCLUSION: According to data in the literature, initiation of TDF at the trimester of pregnancy in combination with immunoprophylaxis to prevent mother-to-child transmission (MTCT) of CHB infection is strongly recommended as well as successful immunization of CHB pregnant women by anti-HBV vaccines. PMID- 29020845 TI - End-of-Life Caregiver Social Support Activation: The Roles of Hospice Clinicians and Professionals. AB - Caregivers of those with life-limiting illness face many complicated tasks, including providing direct patient care, communicating with professionals, and managing the logistical demands of daily activities. To assist with caregiving responsibilities, caregivers require social support from social network members at all points in the illness process. This study analyzes themes from interviews with 61 caregivers of patients enrolled in hospice services to identify the types of support caregivers mobilize from new social network members for social support during the end-of-life care process. Themes indicate that caregivers receive accessible, immediate, caregiver-centered emotional support from hospice health care professionals, and situationally tailored, understandable informational support from other types of professionals. In addition, caregivers received overlapping emotional and informational support from hospice health care professionals. Findings enhance the understanding of how caregivers receive tailored emotional and informational support. PMID- 29020847 TI - Sphingolipids and microRNA Changes in Blood following Blast Traumatic Brain Injury: An Exploratory Study. AB - At present, accurate and reliable biomarkers to ascertain the presence, severity, or prognosis of blast traumatic brain injury (bTBI) are lacking. There is an urgent need to establish accurate and reliable biomarkers capable of mbTBI detection. Currently, there are no studies that identify changes in miRNA and lipids at varied severities of bTBI. Various biological components such as lipids, circulating mRNA, and miRNA, could potentially be detected using advanced techniques such as next-generation sequencing and mass spectroscopy. Therefore, plasma analysis is an attractive approach with which to diagnose and treat brain injuries. Subacute changes in plasma microRNA (miRNA) and lipid composition for sphingolipids were evaluated in a murine model of mild-to-moderate bTBI using next-generation sequencing and mass spectroscopy respectively. Animals were exposed at 17, 17 * 3, and 20 psi blast intensities using a calibrated blast simulator. Plasma lipid profiling demonstrated decreased C18 fatty acid chains of sphingomyelins and increased ceramide levels when compared with controls. Plasma levels of brain-enriched miRNA, miR-127 were increased in all groups while let 7a, b, and g were reduced in the 17 * 3 and 20 psi groups, but let 7d was increased in the 17 psi group. The majority of the miRs and lipids are highly conserved across different species, making them attractive to explore and potentially employ as diagnostic markers. It is tempting to speculate that sphingolipids, miR-128, and the let-7 family could predict mTBI, while a combination of miR-484, miR-122, miR-148a, miR-130a, and miR-223 could be used to predict the overall status of injury following blast injury. PMID- 29020846 TI - Patients' and caregivers' needs, experiences, preferences and research priorities in spiritual care: A focus group study across nine countries. AB - BACKGROUND: Spiritual distress is prevalent in advanced disease, but often neglected, resulting in unnecessary suffering. Evidence to inform spiritual care practices in palliative care is limited. AIM: To explore spiritual care needs, experiences, preferences and research priorities in an international sample of patients with life-limiting disease and family caregivers. DESIGN: Focus group study. SETTING/PARTICIPANTS: Separate patient and caregiver focus groups were conducted at 11 sites in South Africa, Kenya, South Korea, the United States, Canada, the United Kingdom, Belgium, Finland and Poland. Discussions were transcribed, translated into English and analysed thematically. RESULTS: A total of 74 patients participated: median age 62 years; 53 had cancer; 48 were women. In total, 71 caregivers participated: median age 61 years; 56 were women. Two thirds of participants were Christian. Five themes are described: patients' and caregivers' spiritual concerns, understanding of spirituality and its role in illness, views and experiences of spiritual care, preferences regarding spiritual care, and research priorities. Participants reported wide-ranging spiritual concerns spanning existential, psychological, religious and social domains. Spirituality supported coping, but could also result in framing illness as punishment. Participants emphasised the need for staff competence in spiritual care. Spiritual care was reportedly lacking, primarily due to staff members' de prioritisation and lack of time. Patients' research priorities included understanding the qualities of human connectedness and fostering these skills in staff. Caregivers' priorities included staff training, assessment, studying impact, and caregiver's spiritual care needs. CONCLUSION: To meet patient and caregiver preferences, healthcare providers should be able to address their spiritual concerns. Findings should inform patient- and caregiver-centred spiritual care provision, education and research. PMID- 29020848 TI - Concussion Alters the Functional Brain Processes of Visual Attention and Working Memory. AB - Millions of North Americans sustain a concussion or a mild traumatic brain injury annually, and are at risk of cognitive, emotional, and physical sequelae. Although functional MRI (fMRI) studies have provided an initial framework for examining functional deficits induced by concussion, particularly working memory and attention, the temporal dynamics underlying these deficits are not well understood. We used magnetoencephalography (MEG), a modality with millisecond temporal resolution, in conjunction with a 1-back visual working memory (VWM) paradigm using scenes from everyday life to characterize spatiotemporal functional differences at specific VWM stages, in adults had had or had not had a recent concussion. MEG source-level differences between groups were determined by whole-brain analyses during encoding and recognition phases. Despite comparable behavioral performance, abnormal hypo- and hyperactivation patterns were found in brain areas involving frontoparietal, ventral occipitotemporal, temporal, and subcortical areas in concussed patients. These patterns and their timing varied as a function of VWM stagewise processing, linked to early attentional control, visuoperceptual scene processing, and VWM maintenance and retrieval processes. Parietal hypoactivation, starting at 60 ms during encoding, was correlated with symptom severity, possibly linked to impaired top-down attentional processing. Hyperactivation in the scene-selective occipitotemporal areas, the medial temporal complex, specifically the right hippocampus and orbitofrontal areas during encoding and/or recognition, lead us to posit inefficient but compensatory visuoperceptual, relational, and retrieval processing. Although injuries sustained after the concussion were considered "mild," these data suggest that they can have prolonged effects on early attentional and VWM processes. PMID- 29020849 TI - Microfluidic preparation of drug-loaded PEGylated liposomes, and the impact of liposome size on tumour retention and penetration. AB - Understanding the effect of liposome size on tendency for accumulation in tumour tissue requires preparation of defined populations of different sized particles. However, controlling the size distributions without changing the lipid composition is difficult, and differences in compositions itself modify distribution behaviour. Here, a commercial microfluidic format as well as traditional methods was used to prepare doxorubicin-loaded liposomes of different size distributions but with the same lipid composition, and drug retention, biodistribution and localization in tumour tissues were evaluated. The small (~50 nm diameter) liposomes prepared by microfluidics and large (~75 nm diameter) liposomes displayed similar drug retention in in vitro release studies, and similar biodistribution patterns in tumour-bearing mice. However, the extent of extravasation was clearly dependent on size of the liposomes, with the small liposomes showing tissue distribution beyond the vascular area compared to the large liposomes. The use of microfluidics to prepare smaller size distribution liposomes compared to sonication methods is demonstrated, and allowed preparation of different size distribution drug carriers from the same lipid composition to enable new understanding of tissue distribution in compositionally consistent materials is demonstrated. PMID- 29020850 TI - Household food security and HIV status in rural and urban communities in the Free State province, South Africa. AB - Higher socioeconomic status impacts profoundly on quality of life. Life-event stressors, such as loss of employment, marital separation/divorce, death of a spouse and food insecurity, have been found to accelerate disease progression among people with human immunodeficiency virus (HIV). The objective of this study was to determine significant independent sociodemographic and food security factors associated with HIV status in people from rural and urban communities in the Assuring Health for All study, which was undertaken in rural Trompsburg, Philippolis and Springfontein and urban Mangaung, in the Free State Province of South Africa. Sociodemographic and food security factors associated with HIV status were determined in 886 households. Logistic regression with forward selection (p < 0.05) was used to select significant independent factors associated with HIV status. Variables with a p-value of <0.15 were considered for inclusion in the model. Adults 25-64 years of age were eligible to participate. Of the 567 rural participants, 97 (17.1%) were HIV-infected, and 172 (40.6%) of the 424 urban participants. A relatively high percentage of respondents had never attended school, while very few participants in all areas had a tertiary education. The unemployment rate of HIV-infected adults was higher than that of HIV-uninfected adults. A high percentage of respondents in all areas reported running out of money to buy food, with this tendency occurring significantly more among urban HIV-infected than HIV-uninfected respondents. In all areas, a high percentage of HIV-infected respondents relied on a limited number of foods to feed their children, with significantly more HIV-infected urban respondents compared to their uninfected counterparts reporting this. Most participants in all areas had to cut the size of meals, or ate less because there was not enough food in the house or not enough money to buy food. During periods of food shortage, more than 50% of respondents in all areas asked family, relatives or neighbours for assistance with money and/or food, which occurred at a higher percentage of HIV-infected rural participants compared to HIV-uninfected rural participants. More than half of all participants reported feeling sad, blue or depressed for two weeks or more in a row. HIV infection was negatively associated with being married (odds ratio 0.20 in rural areas and 0.54 in urban areas), while church membership decreased the likelihood of HIV (odds ratio 0.22 in rural areas and 0.46 in urban areas). Indicators of higher socioeconomic status (having a microwave oven and access to vegetables from local farmers or shops) decreased the likelihood of HIV in rural areas (odds ratios 0.15 and 0.43, respectively). Indicators of lower socioeconomic status such as spending less money on food in the rural sample (odds ratio 3.29) and experiencing periods of food shortages in the urban sample (odds ratio 2.14), increased the likelihood of being HIV infected. Interventions aimed at poverty alleviation and strengthening values can contribute to addressing HIV infection in South Africa. PMID- 29020851 TI - Impact of Attending the Diwaniyyah on Kuwaiti Men's Health. AB - Diwaniyyah is a traditional gathering place for men in the Arab world. Most Kuwaiti men spend most of their time in the diwaniyyah, which is an important part of their social activity. The current study aims to examine the relationship between the diwaniyyah as a social community and the attendees' health conditions to determine how the diwaniyyah affects Kuwaiti men's lifestyle. A questionnaire was distributed among 500 men 16 years old and above. It comprised five parts of data: sociodemographic information, frequency of attending diwaniyyah, types of diwaniyyahs, and health lifestyle of members attending the diwaniyyah. A t-test, one-way analysis of variance (ANOVA) and linear regression were used to test the study's questions. A significant difference in negative effect of diwaniyyahs on attendees' physical health was detected according to the participants' ethnic roots, affection for and length of time they spent in the diwaniyyah, time of day or evening that they visited, and dealing with chronic disease ( p < .05). Also the results reveal significant differences in the positive effect of diwaniyyahs on the attendees' lifestyle behavior according to their age, occupational status, religious affiliation, government, prayer time, and type of diwaniyyah ( p < .05). PMID- 29020852 TI - Response to: Situational judgment tests: Who knows the right answers? PMID- 29020853 TI - Blood-Based Protein Biomarkers for the Management of Traumatic Brain Injuries in Adults Presenting to Emergency Departments with Mild Brain Injury: A Living Systematic Review and Meta-Analysis. AB - Accurate diagnosis of traumatic brain injury (TBI) is critical to effective management and intervention, but can be challenging in patients with mild TBI. A substantial number of studies have reported the use of circulating biomarkers as signatures for TBI, capable of improving diagnostic accuracy and clinical decision making beyond current practice standards. We performed a systematic review and meta-analysis to comprehensively and critically evaluate the existing body of evidence for the use of blood protein biomarkers (S100 calcium binding protein B [S100B], glial fibrillary acidic protein [GFAP], neuron specific enolase [NSE], ubiquitin C-terminal hydrolase-L1 [UCH-L1]. tau, and neurofilament proteins) for diagnosis of intracranial lesions on CT following mild TBI. Effects of potential confounding factors and differential diagnostic performance of the included markers were explored. Further, appropriateness of study design, analysis, quality, and demonstration of clinical utility were assessed. Studies published up to October 2016 were identified through a MEDLINE(r), Embase, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) search. Following screening of the identified articles, 26 were selected as relevant. We found that measurement of S100B can help informed decision making in the emergency department, possibly reducing resource use; however, there is insufficient evidence that any of the other markers is ready for clinical application. Our work pointed out serious problems in the design, analysis, and reporting of many of the studies, and identified substantial heterogeneity and research gaps. These findings emphasize the importance of methodologically rigorous studies focused on a biomarker's intended use, and defining standardized, validated, and reproducible approaches. The living nature of this systematic review, which will summarize key updated information as it becomes available, can inform and guide future implementation of biomarkers in the clinical arena. PMID- 29020854 TI - Shared decision-making at the end of life: A focus group study exploring the perceptions and experiences of multi-disciplinary healthcare professionals working in the home setting. AB - BACKGROUND: Globally recommended in healthcare policy, Shared Decision-Making is also central to international policy promoting community palliative care. Yet realities of implementation by multi-disciplinary healthcare professionals who provide end-of-life care in the home are unclear. AIM: To explore multi disciplinary healthcare professionals' perceptions and experiences of Shared Decision-Making at end of life in the home. DESIGN: Qualitative design using focus groups, transcribed verbatim and analysed thematically. SETTING/PARTICIPANTS: A total of 43 participants, from multi-disciplinary community-based services in one region of the United Kingdom, were recruited. RESULTS: While the rhetoric of Shared Decision-Making was recognised, its implementation was impacted by several interconnecting factors, including (1) conceptual confusion regarding Shared Decision-Making, (2) uncertainty in the process and (3) organisational factors which impeded Shared Decision-Making. CONCLUSION: Multiple interacting factors influence implementation of Shared Decision-Making by professionals working in complex community settings at the end of life. Moving from rhetoric to reality requires future work exploring the realities of Shared Decision-Making practice at individual, process and systems levels. PMID- 29020855 TI - Retrospective chart evaluation of hypercalcemia management in oncology patients at the University of Chicago Medical Center. AB - Introduction Due to the lack of formal guideline recommendations, available primary literature was used to develop a proposed protocol for management of hypercalcemia of malignancy at the University of Chicago Medical Center. Methods A retrospective, single center, observational study was performed including adult patients hospitalized with a diagnosis of hypercalcemia and active malignancy. Patients were retrospectively identified as treated in a manner aligned with the proposed protocol ("per protocol") or not treated according to the proposed protocol ("off protocol"), and the outcomes were compared. The primary outcome for efficacy was normalization of corrected calcium within four and seven days of treatment. Results Normalization of corrected calcium was observed in 66% of patients managed per protocol compared to 65% of patients managed off protocol ( p = 1.00) at day four, and in 73% of per protocol patients compared to 65% of off protocol patients ( p = 0.44) at day seven. Areas identified where prospective implementation of the proposed protocol can improve management include: decreasing utilization of bisphosphonates in mild hypercalcemia, optimizing bisphosphonate dosing in renal impairment, decreasing intravenous phosphate repletion, and ensuring proper fluid management and calcitonin dosing. Conclusion Although a statistical difference was not detected in terms of normalization of corrected calcium levels, areas for optimization in management were identified. Therefore, implementation of the proposed protocol is expected to promote evidence-based management of hypercalcemia of malignancy management at University of Chicago Medical Center. PMID- 29020856 TI - Hepatitis C infection and chemotherapy toxicity. AB - There exists little guidance on chemotherapy toxicity management in patients with a history of or active hepatitis C viral infection. We report four cases of patients with solid organ tumors and hepatitis C viral infection, who have experienced severe or unexpected toxicities with chemotherapy. Based on the four case reports, we recommend increased laboratory monitoring for toxicities, initial dose reductions for chemotherapy given with palliative intent, or pre emptive use of growth factor support, even if the patient presents with normal liver function tests. In this patient population, we also recommend treating active hepatitis C viral infection prior to chemotherapy treatment when possible. PMID- 29020857 TI - Optimizing patient education of oncology medications: A descriptive survey of pharmacist-provided patient education in Canada. AB - Background The incidence of cancer is increasing in Canada due to an aging and growing population. This frequently necessitates chemotherapy, which is a high risk treatment, often given as a part of a complex regimen with serious side effects. A review of the evidence of pharmacy-provided patient education initiatives targeted to oncology patients revealed that minimal is known about this service. Objective The objective of this study was to determine the different models of patient education of oncology medications delivered by pharmacists to adult oncology patients in a hospital or cancer center in Canada. Methods The study design was a descriptive online survey developed by the investigation team and was distributed to pharmacists who provided patient education to adult oncology patients. The primary outcome of this research project was to describe self-reported pharmacist-provided patient education of oncology medications across Canada. The survey data was analyzed quantitatively with Opinio survey software. Results Sixty-four pharmacists completed the survey. Key findings of the study were that approximately 50% of pharmacists spend up to 25% of their time providing direct patient care and that not all adult oncology patients are receiving education by a pharmacist. Conclusions Pharmacists provide patient education at the first treatment, change in therapy, and on request of another healthcare professional. Most cover administration, side effects, their prevention and management, and drug-interactions. Frequently used teaching methods include structured patient education delivery process, customized teaching for each patient, and repetition of key educational points. PMID- 29020858 TI - Comment on: Essential competencies in global health research for medical trainees: A narrative review. PMID- 29020859 TI - Conditional deletion of Pip5k1c in sensory ganglia and effects on nociception and inflammatory sensitization. AB - Abstract: Phosphatidylinositol 4-phosphate 5-kinase type 1 gamma (Pip5k1c) generates phosphatidylinositol 4,5-bisphosphate, alsoknown as PI(4,5)P2 or PIP2. Many pronociceptive signaling pathways and receptor tyrosine kinases signal via PIP2 hydrolysis.Previously, we found that pain signaling and pain sensitization were reduced in Pip5k1cp/ global heterozygous knockoutmice. Here, we sought to evaluate the extent to which dorsal root ganglia selective deletion of Pip5k1c affected nociceptionin mice. Initially, we crossed sensory neuron-selective Advillin-Cre mice with a conditional Pip5k1c knockout (cKO) allele(Pip5k1cfl/fl). However, these mice displayed an early onset proprioceptive deficit. To bypass this early onset phenotype,we used two different tamoxifen-inducible Cre lines (Brn3a-Cre-ERT2 and Advillin-Cre-ERT2) to conditionally delete Pip5k1c inadults. Tamoxifen induced high efficiency deletion of PIP5K1C in dorsal root ganglia and slightly reduced PIP5K1C in spinalcord and brain in Brn3a-Cre-ERT2 Pip5k1cfl/fl (Brn3a cKO) mice while PIP5K1C was selectively deleted in dorsal root gangliawith no changes in spinal cord or brain in Advillin-Cre-ERT2 Pip5k1cfl/fl (Advil cKO) mice. Acute thermosensation andmechanosensation were not altered in either line relative to wild-type mice. However, thermal hypersensitivity and mechanicalallodynia recovered more rapidly in Brn3a cKO mice, but not Advil cKO mice, following hind paw inflammation.These data collectively suggest that PIP5K1C regulates nociceptive sensitization in more regions of the nervous systemthan dorsal root ganglia alone. PMID- 29020862 TI - Moving Home: Examining the Independent Effects of Individual- and Neighborhood Level Residential Mobility on Recidivism in High-Risk Parolees. AB - A number of studies have shown that the residential mobility of an offender postrelease can significantly influence recidivism. Research has also shown how the mobility of neighborhoods into which offenders are released is an important contextual factor that predicts recidivism. Within the social disorganization framework, this study combines these lines of research by examining the effect of both individual- and neighborhood-level residential mobility on recidivism for a cohort of high-risk prisoners released on parole in New Zealand. Using multilevel analysis techniques, we found that neither immediate individual-level residential mobility nor neighborhood-level mobility was associated with recidivism after controlling for various multilevel predictors. A number of individual- and neighborhood-level variables were predictive of recidivism, including the number of parole conditions placed on the released offender, and the percent foreign born in their neighborhood. These results are discussed within the context of an increasingly eclectic and diverse country. PMID- 29020860 TI - Group I metabotropic glutamate receptor plasticity after peripheral inflammation alters nociceptive transmission in the dorsal of the spinal cord in adult rats. AB - Abstract: The dorsal horn of the spinal cord is a crucial site for pain transmission and modulation. Dorsal horn neurons of the spinal cord express group I metabotropic glutamate receptors (group I mGluRs) that exert a complex role in nociceptive transmission. In particular, group I mGluRs promote the activation of L-type calcium channels, voltage-gated channels involved in short- and long-term sensitization to pain. In this study, we analyzed the role of group I mGluRs in spinal nociceptive transmission and the possible cooperation between these receptors and L-type calcium channels in the pathophysiology of pain transmission in the dorsal horn of the spinal cord. We demonstrate that the activation of group I mGluRs induces allodynia and L-type calcium channel-dependent increase in nociceptive field potentials following sciatic nerve stimulation. Surprisingly, in a model of persistent inflammation induced by complete Freund's adjuvant, the activation of group I mGluRs induced an analgesia and a decrease in nociceptive field potentials. Among the group I mGluRs, mGluR1 promotes the activation of L type calcium channels and increased nociceptive transmission while mGluR5 induces the opposite through the inhibitory network. These results suggest a functional switch exists in pathological conditions that can change the action of group I mGluR agonists into possible analgesic molecules, thereby suggesting new therapeutic perspectives to treat persistent pain in inflammatory settings. PMID- 29020861 TI - Psilocybin-occasioned mystical-type experience in combination with meditation and other spiritual practices produces enduring positive changes in psychological functioning and in trait measures of prosocial attitudes and behaviors. AB - Psilocybin can occasion mystical-type experiences with participant-attributed increases in well-being. However, little research has examined enduring changes in traits. This study administered psilocybin to participants who undertook a program of meditation/spiritual practices. Healthy participants were randomized to three groups (25 each): (1) very low-dose (1 mg/70 kg on sessions 1 and 2) with moderate-level ("standard") support for spiritual-practice (LD-SS); (2) high dose (20 and 30 mg/70 kg on sessions 1 and 2, respectively) with standard support (HD-SS); and (3) high-dose (20 and 30 mg/70kg on sessions 1 and 2, respectively) with high support for spiritual practice (HD-HS). Psilocybin was administered double-blind and instructions to participants/staff minimized expectancy confounds. Psilocybin was administered 1 and 2 months after spiritual-practice initiation. Outcomes at 6 months included rates of spiritual practice and persisting effects of psilocybin. Compared with low-dose, high-dose psilocybin produced greater acute and persisting effects. At 6 months, compared with LD-SS, both high-dose groups showed large significant positive changes on longitudinal measures of interpersonal closeness, gratitude, life meaning/purpose, forgiveness, death transcendence, daily spiritual experiences, religious faith and coping, and community observer ratings. Determinants of enduring effects were psilocybin-occasioned mystical-type experience and rates of meditation/spiritual practices. Psilocybin can occasion enduring trait-level increases in prosocial attitudes/behaviors and in healthy psychological functioning. Trial Registration ClinicalTrials.gov Identifier NCT00802282. PMID- 29020863 TI - Examining Employment Outcomes of Offender and Nonoffender Vocational Program Graduates. AB - Researchers have found providing employment opportunities for ex-offenders through job training programs to be effective at reducing recidivism. Examining various community-based programs for ex-offenders can be beneficial as they may be able to provide more stable and consistent programming without relying on the justice system. This study examined employment outcomes of graduates with and without criminal histories ( n = 617) from a community-based vocational training program. Results showed that ex-offender graduates obtained employment at equal rates to nonoffender graduates and received equal pay to their nonoffender counterparts. This could indicate that for the vocationally educated ex-offender, employment outcomes may be able to equal those of other job-searching individuals with similar backgrounds but without a criminal history. Community-based programs for ex-offenders may be able to provide effective programming to improve vocational attainment within this group, thereby potentially easing the burden on criminal justice institutions as the sole provider of offender rehabilitation. PMID- 29020864 TI - End-of-life care: A qualitative study comparing the views of people with dementia and family carers. AB - BACKGROUND: In recent years, UK policy has increasingly recognised the importance of end-of-life care in dementia. While professional consensus on optimal palliative care in dementia has been reported, little is known about the perspectives of people with dementia and family carers. AIM: To compare the views of people with dementia and family carers of people with dementia (current and recently bereaved) on optimal end-of-life care. DESIGN: Qualitative interviews (32) and a focus group were conducted. Data were thematically analysed. SETTING/PARTICIPANTS: Participants comprised people with early stage dementia, living at home in the north-east of England ( n = 11); and current and bereaved carers ( n = 25) from six services providing end-of-life care in England. FINDINGS: Seven areas were identified as important to end-of-life care for people with dementia and/or family carers. People with dementia and carers expressed the need for receiving care in place, ensuring comfort and a skilled care team. However, they disagreed about the importance of planning for the future and the role of families in organising care and future decision-making. CONCLUSION: Further comparison of our findings with expert consensus views highlighted key areas of divergence and agreement. Discordant views concerning perceptions of dementia as a palliative condition, responsibility for future decision-making and the practical co-ordination of end-of-life care may undermine the provision of optimal palliative care. Professionals must explore and recognise the individual perspectives of people with dementia and family carers. PMID- 29020865 TI - Peer-to-peer shadowing as a technique for the development of nurse middle managers clinical leadership. AB - Purpose The purpose of this study was to explore the experiences and impact of peer-to-peer shadowing as a technique to develop nurse middle managers' clinical leadership practices. Design/methodology/approach A qualitative descriptive study was conducted to gain insight into the experiences of nurse middle managers using semi-structured interviews. Data were analysed into codes using constant comparison and similar codes were grouped under sub-themes and then into four broader themes. Findings Peer-to-peer shadowing facilitates collective reflection in-action and enhances an "investigate stance" while acting. Nurse middle managers begin to curb the caring disposition that unreflectively urges them to act, to answer the call for help in the here and now, focus on ad hoc "doings", and make quick judgements. Seeing a shadowee act produces, via a process of social comparison, a behavioural repertoire of postponing reactions and refraining from judging. Balancing the act of stepping in and doing something or just observing as well as giving or withholding feedback are important practices that are difficult to develop. Originality/value Peer-to-peer shadowing facilitates curbing the caring disposition, which is essential for clinical leadership development through unlocking a behavioural repertoire that is not easy to reveal because it is, unreflectively, closely knit to the professional background of the nurse managers. Unlike most leadership development programmes, that are quite introspective and detached from context, peer-to-peer shadowing does have the potential to promote collective learning while acting, which is an important process. PMID- 29020866 TI - Cause and timing of death and sub-group differential effects of erythropoietin in the EPO-TBI study. AB - The EPO-TBI study randomised 606 patients with moderate or severe traumatic brain injury (TBI) to be treated with weekly epoetin alfa (EPO) or placebo. Six-month mortality was lower in EPO treated patients in an analysis adjusting for TBI severity. Knowledge of possible differential effects by TBI injury subtype and acute neurosurgical treatment as well as timing and cause of death (COD) will facilitate the design of future interventional TBI trials. We defined COD as cerebral (brain death, cerebral death with withdrawal or death during maximal care) and non-cerebral (death following withdrawal or during maximal care due to a non-cerebral cause). The study included 305 patients treated with EPO and 297 with placebo, with COD recorded in 77 (99%) out of 78 non-survivors. Median time to death in patients dying of cerebral COD was 8 days (IQR 5-16) compared to 29 days (IQR 7-56) (p=0.01) with non-cerebral COD. When assessing subgroups by admission computed tomography scan injury findings, we found no significant differential effects of EPO compared to placebo. However, EPO appeared more effective in patients with an injury type not requiring a neurosurgical operation prior to ICU admission (OR 0.29, 95% confidence interval 0.14-0.61, p=0.001, p for interaction = 0.003) and in this sub-group, fewer patients died of cerebral causes in in the EPO compared to placebo group (5% compared to 14%, p=0.03). In conclusion, most TBI deaths were due to cerebral causesthat occurred during the first two weeks, and were related to withdrawal of care. EPO appeared to specifically reduce cerebral deaths in the important subgroup of patients with a diffuse type of injury not requiring a neurosurgical intervention prior to randomisation. PMID- 29020867 TI - Activation of the Behavioral Immune System: Putting the Brakes on Affiliation. AB - Evolutionary psychologists propose that humans evolved a first line of defense against pathogens: the behavioral immune system (BIS). The BIS is thought to be functionally flexible such that the likelihood and magnitude of BIS activation depends on the individual's perceived vulnerability to disease (PVD). Because conspecifics are sources of infection, the BIS has implications for affiliation. By priming and measuring chronic levels of PVD, we examined PVD's relation to affiliation in zero-acquaintance situations in the laboratory, online, and during speed-dating events. Elevated BIS activation was associated with decreased attraction and affiliative behavior in situations that varied in the trade-off between social reward and potential risk of infection. These results were not due to attachment style, personality traits, or disgust sensitivity. This suggests that in social interactions, approach motivation associated with the need to belong may be weighed against avoidance motivation associated with the need to protect the self from disease. PMID- 29020868 TI - Extended pelvic lymph-node dissection and radiotherapy with curative intent in high-risk lymph-node-positive prostate cancer: a possible curative strategy? AB - OBJECTIVE: This study evaluated the outcome with a treatment strategy for high risk prostate cancer (PCa) using extended pelvic lymph-node dissection (eLND) followed by external beam radiation therapy (EBRT) in lymph-node-positive (LNpos) and lymph-node-negative (LNneg) cases compared with the strategy with limited pelvic lymph-node dissection (lLND) and only giving EBRT to LNneg cases. MATERIALS AND METHODS: From 2000 to 2006, 124 men with high-risk PCa underwent lLND and initiated androgen deprivation therapy (ADT) before planned EBRT. LNpos patients were excluded from EBRT following the SPCG-7 study strategy (group I). From 2007 to 2013, 111 patients underwent eLND and started ADT before EBRT, and LNneg and most LNpos patients received EBRT (group II). Using Kaplan-Meier plots and multivariable Cox regression, biochemical recurrence-free, metastasis-free, cancer-specific survival and overall survival were compared during a 10 year follow-up. RESULTS: PSA progression-free survival rates after 2, 4, 6, 8 and 10 years were 78%, 66%, 52%, 45% and 41% in group I, and 88%, 83%, 78%, 69% and 69% in group II (p < 0.001), respectively. Group II had a lower risk of PSA progression [hazard ratio (HR) = 0.43, 95% confidence interval (CI) 0.27,0.69, p = 0.001], metastasis development (HR = 0.51, 95% CI 0.27,0.97, p = 0.040) and overall mortality (HR = 0.49, 95% CI 0.26,0.92, p = 0.027), but not of PCa specific death (HR = 0.45, 95% CI 0.19,1.08, p = 0.074). CONCLUSION: A treatment strategy for high-risk PCa with eLND combined with EBRT in LNneg and LNpos cases may improve outcome compared to a strategy with lLND and offering EBRT only to LNneg cases but ADT to LNpos cases. PMID- 29020869 TI - A Review of Four Health Procedures That School Nurses May Encounter. AB - The school nurse plays a vital role in providing care and meeting the health needs of students in the school setting. Students attend school with chronic conditions and complex medical problems such as quadriplegia, cerebral palsy, spina bifida, and muscular dystrophy. It is the responsibility of the school nurse to provide appropriate assessment, early intervention, and care for children in the school environment. The purpose of this article is to review and discuss the knowledge and skills the school nurse needs to care for students with central venous lines, gastrostomy tubes, altered urinary elimination, and tracheostomies. PMID- 29020870 TI - Recent life stress exposure is associated with poorer long-term memory, working memory, and self-reported memory. AB - Although substantial research has examined the effects of stress on cognition, much of this research has focused on acute stress (e.g. manipulated in the laboratory) or chronic stress (e.g. persistent interpersonal or financial difficulties). In contrast, the effects of recent life stress on cognition have been relatively understudied. To address this issue, we examined how recent life stress is associated with long-term, working memory, and self-reported memory in a sample of 142 healthy young adults who were assessed at two time points over a two-week period. Recent life stress was measured using the newly-developed Stress and Adversity Inventory for Daily Stress (Daily STRAIN), which assesses the frequency of relatively common stressful life events and difficulties over the preceding two weeks. To assess memory performance, participants completed both long-term and working memory tasks. Participants also provided self-reports of memory problems. As hypothesized, greater recent life stress exposure was associated with worse performance on measures of long-term and working memory, as well as more self-reported memory problems. These associations were largely robust while controlling for possible confounds, including participants' age, sex, and negative affect. The findings indicate that recent life stress exposure is broadly associated with worse memory. Future studies should thus consider assessing recent life stress as a potential predictor, moderator, or covariate of memory performance. PMID- 29020873 TI - Palmaris longus tendocutaneous arterialized venous free flap to reconstruct the interphalangeal collateral ligament in composite defects. AB - : We present 12 cases in which palmaris longus tendocutaneous arterialized venous free flaps were used for the reconstruction of the collateral ligament in compound defects of digits. There were nine cases involving the interphalangeal joint of the fingers and three of the interphalangeal joints of the thumb. The venous flaps survived completely in 10 of the 12 cases. In 11 cases, there were excellent functional results for joint stability, pain, total active motion and pinch power. In all 12 cases, a pain-free joint with excellent stability was achieved after surgery. The palmaris longus tendocutaneous arterialized venous free flap is a good option for reconstruction of composite defects of the collateral ligament of the interphalangeal joint. LEVEL OF EVIDENCE: IV. PMID- 29020872 TI - Paediatric tuberculous osteomyelitis of the thumb metacarpal bone. PMID- 29020871 TI - Tolerability and safety of the intravenous immunoglobulin octagam(r) 10% in patients with immune thrombocytopenia: a post-authorisation safety analysis of two non-interventional phase IV trials. AB - OBJECTIVES: To provide detailed data on the tolerability and safety of octagam(r) 10%, a ready-to-use intravenous immunoglobulin, in a subgroup of patients with immune thrombocytopenia (ITP) involved in an integrated analysis of post authorisation safety surveillance (PASS) studies. METHODS: A subgroup analysis was conducted using data collected from two non-interventional studies that included patients with ITP treated with octagam(r) 10%. Patients were observed and monitored for possible adverse drug reactions (ADRs) during or after administration of octagam(r) 10%, with a particular focus on thromboembolic events (TEEs). ADRs were analysed at the case and event level. RESULTS: In this analysis of 112 patients receiving octagam(r) 10% (mean dose 0.4 g/kg/infusion), there were five cases with at least one adverse drug reaction (ADR) associated with 626 infusions of octagam(r) 10% (case incidence of 0.8% per infusion). ADRs were of mild or moderate severity. There were a total of 10 events, most commonly back pain (n = 3) and headache (n = 2). Nausea, dizziness and a sensation of heaviness were also reported. The remaining two events involved drug exposure during pregnancy. There were no TEEs or other serious ADRs. DISCUSSION: In this subgroup analysis of patients who received octagam(r) 10% (manufactured using an amended process) in two PASS studies, the overall ADR rate was low, with ADRs occurring in only 0.8% of all infusions. No TEEs or other serious ADRs were reported. CONCLUSIONS: Routine clinical use of octagam(r) 10% was safe and well tolerated, with no unexpected safety issues, in patients with ITP. The two studies from which data were taken are registered with the International Standard Randomised Controlled Trial Number Registry, numbers ISRCTN58800347 and ISRCTN02245668. PMID- 29020874 TI - Safety of corticosteroid injection for carpal tunnel syndrome. AB - : The risks of corticosteroid injection for carpal tunnel syndrome, principally intraneural injection and tendon rupture, are known only from anecdotal reports. The literature does not allow an accurate estimate of their incidence or that of lesser side effects such as local pain. We have encountered only four serious complications in 9515 injections. We asked patients about possible side effects at routine follow-up, 6 weeks after 689 injections with 40 mg triamcinolone. Possible side effects were reported after 33% of injections. The commonest was short-lived local pain, which occurred in 13% of injected limbs, all cases having resolved within 3 weeks. No cases of intraneural injection or tendon rupture occurred, even after repeated injection. Most adverse effects were transient, but 13 hands exhibited persistent skin depigmentation or subcutaneous atrophy. This data provides the best current estimate of the risks of carpal tunnel injection and may be used to inform patients considering this intervention. LEVEL OF EVIDENCE: IV. PMID- 29020875 TI - Founder Effect of the RETC611Y Mutation in Multiple Endocrine Neoplasia 2A in Denmark: A Nationwide Study. AB - BACKGROUND: Multiple endocrine neoplasia (MEN) 2A and 2B are caused by REarranged during Transfection (RET) germline mutations. In a recent nationwide study, an unusually high prevalence (33%) of families with the C611Y mutation was reported, and it was hypothesized that this might be due to a founder effect. The first nationwide study of haplotypes in MEN2A families was conducted, with the aim of investigating the relatedness and occurrence of de novo mutations among Danish families carrying similar mutations. METHODS: The study included 21 apparently unrelated MEN2A families identified from a nationwide Danish RET cohort from 1994 to 2014. Twelve, two, two, three, and two families carried the C611Y, C618F, C618Y, C620R, and C634R mutations, respectively. Single nucleotide polymorphism chip data and identity by descent analysis were used to assess relatedness. RESULTS: A common founder mutation was found among all 12 C611Y families and between both C618Y families. No relatedness was identified in the remaining families. CONCLUSION: The data suggest that all families with the C611Y germline mutation in Denmark originate from a recent common ancestor, probably explaining the unusually high prevalence of this mutation. Additionally, the results indicate that the C611Y mutation rarely arises de novo, thus underlining the need for thorough multigenerational genetic work up in carriers of this mutation. PMID- 29020876 TI - Screening for Colorectal Cancer at the Worksite. AB - Colorectal cancer (CRC) is the second leading cause of cancer-related deaths among men and women in the United States. To increase statewide CRC screening rates, the Alabama Department of Public Health (through a Centers for Disease Control and Prevention [CDC] Colorectal Cancer Control Program grant) partnered with The University of Alabama in Huntsville (UAH) and The University of South Alabama (USA) to provide free CRC screening opportunities to eligible University employees and dependents. Resources were invested at both universities to ensure participant education, tracking, and monitoring. In total, 86 fecal immunochemical tests (FITs) were distributed at the UAH campus and 62 were returned for testing; 146 FITs were distributed on the USA campus with 111 returned. Fecal immunochemical test return rates were over 70% at each site. Most notably, 21 positive FITs were identified among UAH participants and 25 at USA. Findings from both efforts suggest that employer-based screening initiatives are a systematic and replicable means of improving CRC screening. PMID- 29020877 TI - Discovery of the feline fur-mite Lynxacarus radovskyi in a cat resident in New Zealand. PMID- 29020878 TI - Pharmacokinetics of articaine hydrochloride and its metabolite articainic acid after subcutaneous administration in red deer (Cervus elaphus). AB - AIM: To develop and validate a simple and sensitive method using liquid chromatography-mass spectrometry (LC-MS) for quantification of articaine, and its major metabolite articainic acid, in plasma of red deer (Cervus elaphus), and to investigate the pharmacokinetics of articaine hydrochloride and articainic acid in red deer following S/C administration of articaine hydrochloride as a complete ring block around the antler pedicle. METHODS: The LC-MS method was validated by determining linearity, sensitivity, recovery, carry-over and repeatability. Articaine hydrochloride (40 mg/mL) was administered S/C to six healthy male red deer, at a dose of 1 mL/cm of pedicle circumference, as a complete ring block around the base of each antler. Blood samples were collected at various times over the following 12 hours. Concentrations in plasma of articaine and articainic acid were quantified using the validated LC-MS method. Pharmacokinetic parameters of articaine and articainic acid were estimated using non-compartmental analysis. RESULTS: Calibration curves were linear for both articaine and articainic acid. The limits of quantifications for articaine and articainic acid were 5 and 10 ng/mL, respectively. Extraction recoveries were >72% for articaine and >68% for articainic acid. After S/C administration as a ring block around the base of each antler, mean maximum concentrations in plasma (Cmax) of articaine were 1,013.9 (SD 510.1) ng/mL, detected at 0.17 (SD 0.00) hours, and the Cmax for articainic acid was 762.6 (SD 95.4) ng/mL at 0.50 (SD 0.00) hours. The elimination half lives of articaine hydrochloride and articainic acid were 1.12 (SD 0.17) and 0.90 (SD 0.07) hours, respectively. CONCLUSIONS AND CLINICAL RELEVANCE: The LC-MS method used for the quantification of articaine and its metabolite articainic acid in the plasma of red deer was simple, accurate and sensitive. Articaine hydrochloride was rapidly absorbed, hydrolysed to its inactive metabolite articainic acid, and eliminated following S/C administration as a ring block in red deer. These favourable pharmacokinetic properties suggest that articaine hydrochloride should be tested for efficacy as a local anaesthetic in red deer for removal of velvet antlers. Further studies to evaluate the safety and residues of articaine hydrochloride and articainic acid are required before articaine can be recommended for use as a local anaesthetic for this purpose. PMID- 29020879 TI - Immunohistochemical and quantitative RT-PCR methods to assess RANK expression in normal and neoplastic canine mammary gland. AB - The receptor activator of nuclear factor-kB ( RANK) gene is found in both human and murine mammary epithelial cells and in human cancer cell lines. We analyzed RANK expression in normal and proliferative canine mammary tissue samples ( n = 47) and cell lines ( n = 10), and identified its expression in epithelial cell populations. The correlation of RANK protein with clinicopathologic parameters was also studied. A double immunohistochemical method using RANK and p63 antibodies was applied to 33 tissue samples to analyze RANK protein expression and its possible co-expression with p63 protein, the latter used to identify myoepithelial (ME) cells (p63-positive) or luminal epithelial (LE) cells (p63 negative). RANK protein expression was found in ~75% of the tissue samples analyzed, at a similar level in all of the histologic types studied: dysplasias (4 of 4, 100%), malignant tumors (13 of 17, 76%), normal glands (12 of 17, 70%), and benign tumors (6 of 9, 67%). ME and LE cells expressed RANK protein at a similar level. A higher level of RANK protein expression was found in older animals (>=10 y, p = 0.027). Quantitative RT-PCR was applied to 6 ME (1 normal and 5 neoplastic) and 4 LE (1 normal and 3 neoplastic) primary cell lines. The RANK gene was found at similar expression levels in all canine mammary ME and LE cell lines studied. We found RANK expression in normal, dysplastic, and neoplastic canine mammary tissues and cell lines, in both ME and LE cell populations. PMID- 29020881 TI - Knockdown of REGgamma inhibits the proliferation and migration and promotes the apoptosis of multiple myeloma cells by downregulating NF-kappaB signal pathway. AB - OBJECTIVES: This study aimed to evaluate the effects of REGgamma knockdown on the proliferation, apoptosis and migration of multiple myeloma (MM) cells, and reveal the potential regulatory mechanisms. METHODS: The expression of REGgamma on myeloma cells of 28 MM patients was detected by Western blot. shRNA-REGgamma-1 and shRNA-REGgamma-2 were constructed to downregulate REGgamma in RPMI-8226 cells. The proliferation, apoptosis and migration of transfected cells were analyzed by Cell Counting Kit 8 (CCK8), flow cytometry and transwell chamber, respectively. The expression of phosphorylated p65 (p-p65), p65, NF-kappa-B inhibitor epsilon (IkBepsilon), matrix metalloproteinase 2 (MMP2), B-cell lymphoma xL (Bcl-xL) and X-linked inhibitor of apoptosis protein (XIAP) in transfected cells was detected by Western blot. Using cycloheximide (CHX), the half-life period of IkBepsilon was detected by Western blot. RESULTS: The expression of REGgamma was positive in myeloma cells. The proliferation and migration of RPMI-8226 cells were significantly inhibited by shRNA-REGgamma 1/shRNA-REGgamma-2, while the apoptosis rates were significantly increased (p < 0.05). The expression of p-p65 and IkBepsilon was significantly reduced in RPMI 8226 cells transfected with shRNA-REGgamma-1/shRNA-REGgamma-2. The degradation of IkBepsilon was significantly lower in RPMI-8226 cells transfected with shRNA REGgamma-1 than the control (longer half-life period). Besides, the expression of MMP2, Bcl-xL and XIAP in RPMI-8226 cells was significantly inhibited by shRNA REGgamma-1/shRNA-REGgamma-2. DISCUSSION: Knockdown of REGgamma may inhibit the proliferation and migration, and promote the apoptosis of RPMI-8226 cells possibly by downregulating NF-kappaB signal pathway. PMID- 29020882 TI - Quality of time spent without symptoms of disease or toxicity of treatment for transmetatarsal amputation versus digital amputation in diabetic patients with digital gangrene. AB - Aim We aim to compare the outcome of diabetic patients with gangrenous toes who were managed initially either by digital amputation or by transmetatarsal amputation. The null hypothesis is that transmetatarsal amputation had less theatre trips and better healing. Materials and Methods A parallel observational comparative study of all diabetic patients who underwent either digital or transmetatarsal amputation in a tertiary referral center from 2002 through 2015. Comorbid conditions, subsequent amputations, hospital stay, and readmission were noted. Results A total of 223 patients underwent minor amputation during the study period, of which 147 patients were diabetic and 76 patients were non diabetic. Seventy-seven patients had digital amputation and 70 transmetatarsal amputation in diabetic patients. Demographics were similar in both groups. The median time to major amputation was (400 +/- IQR 1205 days) in the digital amputation group, compared to 690 +/- IQR 891 days in the transmetatarsal amputation group ( P = 0.974). 29.9% of digital amputations and 15.7% of transmetatarsal amputations in diabetic patients, required minor amputations or revision procedures ( P = 0.04). Median length of hospital stay was (20 days, IQR 27) in the digital group and (17 days, IQR17) in the transmetatarsal amputation group ( P = 0.17). Need for re-admission was 48.1% in digital patients compared to 50% in transmetatarsal amputation patients ( P = 0.81). Quality of time spent without symptoms of disease or toxicity of treatment (Q-TWiST) was (315 days, IQR 45) in digital group and (346 days, IQR 48) in the transmetatarsal amputation patients ( P = 0.099). Conclusion Despite the lack of statistical significance, transmetatarsal amputation offered better outcome in the diabetic patients, with less re-intervention rate, shorter hospital stays, less theatre trips, and longer time without toxicity (TWiST). PMID- 29020880 TI - Pulsed Electromagnetic Fields and Tissue Engineering of the Joints. AB - BACKGROUND: Bone and joint formation, maintenance, and regeneration are regulated by both chemical and physical signals. Among the physical signals there is an increasing realization of the role of pulsed electromagnetic fields (PEMF) in the treatment of nonunions of bone fractures. The discovery of the piezoelectric properties of bone by Fukada and Yasuda in 1953 in Japan established the foundation of this field. Pioneering research by Bassett and Brighton and their teams resulted in the approval by the Food and Drug Administration (FDA) of the use of PEMF in the treatment of fracture healing. Although PEMF has potential applications in joint regeneration in osteoarthritis (OA), this evolving field is still in its infancy and offers novel opportunities. METHODS: We have systematically reviewed the literature on the influence of PEMF in joints, including articular cartilage, tendons, and ligaments, of publications from 2000 to 2016. CONCLUSIONS: PEMF stimulated chondrocyte proliferation, differentiation, and extracellular matrix synthesis by release of anabolic morphogens such as bone morphogenetic proteins and anti-inflammatory cytokines by adenosine receptors A2A and A3 in both in vitro and in vivo investigations. It is noteworthy that in clinical translational investigations a beneficial effect was observed on improving function in OA knees. However, additional systematic studies on the mechanisms of action of PEMF on joints and tissues therein, articular cartilage, tendons, and ligaments are required. PMID- 29020883 TI - The immune response in trichloroethylene hypersensitivity syndrome: A review. AB - Trichloroethylene (TCE) has been used for a variety of industrial and consumer cleaning purposes because of its ability to dissolve organic substances. The multisystem injuries include those of skin, liver, and kidney, which are defined as TCE hypersensitivity syndrome (THS). THS is a serious occupational health issue. However, the mechanism of immune dysfunction leading to organ injury is poorly understood. Many studies reveal that skin lesions and organ injury caused by TCE are consistent with type IV hypersensitivity, also called delayed hypersensitivity, mediated by T cells. However, many researchers found T cell mediated type IV hypersensitivity could not account for the pathogenesis of THS fully. Humoral immunity, including immunoglobulins and complement activation, may also play a possible role in THS pathogenesis. This review will describe the history, current understanding, and future research directions of the mechanism of THS. PMID- 29020884 TI - Pathologic Reporting of Tall-Cell Variant of Papillary Thyroid Cancer: Have We Reached a Consensus? AB - BACKGROUND: Tall-cell variant (TCV) is widely believed to be a more aggressive subtype of papillary thyroid carcinoma (PTC). Despite the significance of TCV with respect to risk stratification and therapeutic decision making, its diagnosis is subject to inter-observer variability. This study aimed to determine the level of agreement among expert pathologists in the identification and reporting of TCV. METHODS: Seventeen surgical resections for thyroid cancer containing the diagnostic term "tall cell" in their pathology reports and 22 cases diagnosed as classical PTC were selected. Cases were digitalized, and 14 expert pathologists reviewed the scanned slides blinded to the original interpretation. Each pathologist designated each case as TCV or not and answered multiple questions about diagnostic histopathologic features of TCV. RESULTS: The overall strength of agreement for identifying TCV was fair (Fleiss kappa 0.34), and the proportion of observed agreement was 0.70. Of 22 cases originally diagnosed as PTC classical variant, 15 (68%) were reclassified as TCV by at least one expert pathologist. It was noted that four different definitions for TCV were used by the participants based on various combinations of cell height to width (H:W) ratio and the percentage of tumor cells showing that specific ratio. All pathologists agreed that the diagnosis of TCV does not rely solely on a specific H:W ratio. CONCLUSIONS: Pathologic reporting of TCV varies among pathologists. This disagreement is a result of the lack of unanimous diagnostic criteria and variation in individual pathologists' interpretations. These discrepancies lead to over- and under-diagnosis of TCV, which has significant implications in patient management. It is imperative to understand this variability in diagnosis TCV as it relates to risk stratification and interpretation of clinical studies related to this histologic subtype of PTC. Further studies are needed to reach consensus on the diagnostic criteria of TCV. PMID- 29020885 TI - Identification of PA28beta as a potential novel biomarker in human esophageal squamous cell carcinoma. AB - Esophageal squamous cell carcinoma (ESCC) is one of the most common and serious malignancies in China. However, the exact mechanisms of tumor formation and progression are unclear. As late diagnosis and poor therapeutic efficacy result in lower survival rates, identifying biomarkers for early detection, prognostic evaluation, and recurrence monitoring of ESCC is necessary. Here we analyzed 10 protein expression profiles of ESCC core tissues and paired normal esophageal epithelial tissues using two-dimensional gel electrophoresis. We excised 29 protein spots with two-fold or greater differential expression between cancer and normal tissues and identified them using matrix-assisted laser desorption/ionization-time-of-flight/time-of-flight mass spectrometry. The role of PA28beta in ESCC cell was confirmed using cell growth, colony formation and soft agar in TE-1 cells pre- and post- PA28beta transfection. Compared to their expression in the adjacent normal epithelia, 12 proteins, including transgelin (TAGLN), were upregulated in ESCC tissues; 17 proteins, including proteasome activator 28-beta subunit (PA28beta), were downregulated (p < 0.05). Western blotting and immunohistochemistry confirmed that PA28beta was significantly underexpressed in ESCC tissues. The functional assays demonstrate that PA28beta inhibited cell growth, proliferation and malignancy of TE-1 cells. Among the differentially expressed proteins, PA28beta is a potential tumor inhibitor. PMID- 29020886 TI - Comparison of culture methodology for the detection of methicillin-resistant Staphylococcus pseudintermedius in clinical specimens collected from dogs. AB - Methicillin-resistant Staphylococcus pseudintermedius (MRSP) has emerged as a major pathogen in dogs and has been implicated as a hospital-acquired pathogen in veterinary hospitals. We attempted to determine if selective culture methods will detect more MRSP when compared to the traditional culture methods in clinical samples from dogs in Atlantic Canada with a high risk for MRSP infection. Each sample was tested using 4 culture methods: traditional culture; mannitol salt agar with 2 MUg/mL of oxacillin (MSAox); enrichment broth (EB) with MSAox; and EB with traditional culture. Detection of penicillin-binding protein 2', via latex agglutination, was used as a confirmatory test for oxacillin resistance. We analyzed 741 samples from 556 dogs between February 2013 and April 2014. The prevalence of MRSP in samples detected by any method was estimated at 13.4% (95% CI: 11.1-16.0%). When the prevalence of MRSP was determined according to culture method, EB with MSAox detected the highest prevalence (11.2% [9.1-13.7%]), followed by EB with traditional (10.8% [8.8-13.2%]), traditional (10.1% [8.1 12.5%]), and MSAox (8.9% [7.1-11.2%]). The prevalence using the traditional culture method did not differ significantly from any of the 3 selective culture methods. Culture with MSAox detected significantly fewer MRSP than either of the EB methods. The addition of EB to current methodology is recommended, particularly for patients considered at high risk for MRSP infection. PMID- 29020887 TI - The potential association of tumor necrosis factor-betaeta (252 G/A) cytokine gene polymorphism with immune thrombocytopenic purpura among Egyptian children. AB - OBJECTIVES: The main objective of this study was to study tumor necrosis factor beta (TNFB) + 252G/A gene polymorphism, known to be related to autoimmunity, in immune thrombocytopenia (ITP) patients. We also aimed to investigate the association between TNFB + 252G/A polymorphism and susceptibility to develop persistent/chronic ITP. METHODS: One hundred pediatric ITP patients, as well as 50 age- and sex-matched healthy Egyptian subjects, were included. Genotyping of TNF-beta gene (G252A) was done using the PCR-RFLP method. RESULTS: TNFB allele B2 frequency was (64%, 64/100) in controls, (69%, 138/200) in ITP patients, while the frequency of the variant allele B1 was 36% (36/100) in controls, (31%, 62/200) in ITP patients. TNFB genotype frequency in ITP patients showed equal frequency for B2B2 and B1B2 genotypes, (46%, 46/100), while B1B1 frequency was 8% (8/100). Among controls, frequencies of B2B2, B1B2 and B1B1 genotypes were 36% (18/50), 56% (28/50), and 8% (4/50), respectively. Odds ratio for the risk of developing ITP revealed no statistically significant risk, associated with any allele or genotype. No association was encountered between different genotypes and age, hematological parameters, gender, stage of the disease or response to treatment. DISCUSSION: Comparison between ITP patients and controls as regards TNFB allele and genotype frequencies showed no statistically significant difference. No increased risk for developing ITP was associated with any allele/genotype. CONCLUSION: The risk of developing ITP was not related to the studied polymorphism. PMID- 29020888 TI - Clinical haematology and biochemistry profiles of cattle naturally infected with Theileria orientalis Ikeda type in New Zealand. AB - AIMS: To present the haematology and biochemistry profiles for cattle in New Zealand naturally infected with Theileria orientalis Ikeda type and investigate if the results differed between adult dairy cattle and calves aged <6 months. METHODS: Haematology and biochemistry results were obtained from blood samples from cattle which tested positive for T. orientalis Ikeda type by PCR, that were submitted to veterinary laboratories in New Zealand between October 2012 and November 2014. Data sets for haematology and biochemistry results were prepared for adult dairy cattle (n=62 and 28, respectively) and calves aged <6 months (n=62 and 28, respectively), which were matched on the basis of individual haematocrit (HCT). Results were compared between age groups when categorised by HCT. Selected variables were plotted against individual HCT, and locally weighted scatterplot smoothing (Loess) curves were fitted to the data for adult dairy cattle and calves <6 months old. RESULTS: When categorised by HCT, the proportion of samples with HCT <0.15 L/L (severe anaemia) was greater for adult dairy cattle than for beef or dairy calves, for both haematology (p<0.002) and biochemistry (p<0.001) submissions. There were differences (p<0.05) between adult dairy cattle and calves aged <6 months in the relationships between HCT and red blood cell counts, mean corpuscular volume, mean corpuscular haemoglobin, mean corpuscular haemoglobin concentrations, lymphocyte and eosinophil counts, and activities of glutamate dehydrogenase and aspartate aminotransferase. In both age groups anisocytosis was frequently recorded. The proportion of blood smears showing mild and moderate macrocytosis was greater in adults than calves (p=0.01), and mild and moderate poikilocytosis was greater in calves than adults (p=0.005). CONCLUSIONS AND CLINICAL RELEVANCE: The haematology and biochemistry changes observed in cattle infected with T. orientalis Ikeda type were consistent with extravascular haemolytic anaemia. Adult dairy cattle were more likely to be severely anaemic than calves. There were differences in haematology and biochemistry profiles between adult dairy cattle and calves, but most of these differences likely had a physiological rather than pathological basis. Overall, the haematological changes in calves aged <6 months appeared less severe than in adult dairy cattle. PMID- 29020889 TI - Differential Effect of Acute Iron Overload on Oxidative Status and Antioxidant Content in Regions of Rat Brain. AB - The hypothesis of this study is that the cerebral cortex, hippocampus, and striatum of the rat brain are differentially affected in terms of oxidative stress and antioxidant capacity by acute Fe overload because Fe is distributed in a heterogeneous fashion among different regions and cells of the brain. The effects on the lipophilic and hydrophilic cellular environment were compared between regions and with the whole brain. A single dose of Fe-dextran increased Fe deposits, reaching a maximum after 6 hr. Both in whole brain and in cortex region, the ascorbyl/ascorbate content ratio was increased after 6 hr of Fe administration, while in striatum and hippocampus, there was no significant changes after Fe overload. Total thiol content decreased in whole brain and cortex, while there were no significant changes in striatum and hippocampus after Fe overload. The content of alpha-tocopherol (alpha-T), whether measured in the whole brain or in the isolated regions, did not change following Fe treatment. Lipid radical (LR*) generation rate after Fe-dextran overload only increased in the cortex region. The LR*/alpha-T content ratio was increased by Fe treatment in cortex but not in the whole brain, striatum, or hippocampus, in agreement with the study tested hypothesis. PMID- 29020890 TI - Career Transition Points in Toxicologic Pathology: Management and Consulting. AB - In the constantly evolving field of toxicologic pathology, a pathologist's career is often characterized by multiple career transitions. However, these transitions can be challenging and/or overwhelming and may require a shift in focus, strategic approach, and acquisition of new skills and expertise. In order to provide a forum to discuss challenges associated with career transitions and skill set/competencies required to navigate career changes effectively and successfully, the Career Development and Outreach Committee of the Society of Toxicologic Pathology (STP) sponsored a career development workshop entitled "Transitions in a Pathologist's Career" in conjunction with the STP 36th annual symposium. The presentations at this workshop provided perspectives of managers from pharmaceutical companies and Contract Research Organizations as well as consultants. This article is designed to provide brief summaries of their talks in this well-received career development workshop. PMID- 29020891 TI - Biologic Joint Repair Strategies: The Mizzou BioJoint Story. AB - Because articular cartilage has very limited healing potential, most symptomatic cartilage injuries eventually result in end-stage osteoarthritis and are treated with artificial joint replacement. Our interdisciplinary, comparative orthopedic research performed by a team of DVMs, MDs, engineers, and basic scientists has yielded marked progress toward effective biologic joint restoration strategies by bringing bench-side ideas to fruition in bedside applications in both canine and human patients. This mini-review summarizes the progress of biologic joint restoration strategies at our center. PMID- 29020893 TI - Clinical practice guidelines for the diagnosis and management of melanoma: melanomas that lack classical clinical features. AB - INTRODUCTION: A Cancer Council Australia multidisciplinary working group is currently revising and updating the 2008 evidence-based clinical practice guidelines for the management of cutaneous melanoma. While there have been many recent improvements in treatment options for metastatic melanoma, early diagnosis remains critical to reducing mortality from the disease. Improved awareness of the atypical presentations of this common malignancy is required to achieve this. A chapter of the new guidelines was therefore developed to aid recognition of atypical melanomas. Main recommendations: Because thick, life-threatening melanomas may lack the more classical ABCD (asymmetry, border irregularity, colour variegation, diameter > 6 mm) features of melanoma, a thorough history of the lesion with regard to change in morphology and growth over time is essential. Any lesion that is changing in morphology or growing over a period of more than one month should be excised or referred for prompt expert opinion. Changes in management as a result of the guidelines: These guidelines provide greater emphasis on improved recognition of the atypical presentations of melanoma, in particular nodular, desmoplastic and acral lentiginous subtypes, with particular awareness of hypomelanotic and amelanotic lesions. PMID- 29020895 TI - The rationale for action to end new cases of rheumatic heart disease in Australia. PMID- 29020892 TI - Are Evidence-Based Guidelines Reflected in Clinical Practice? An Analysis of Prospectively Collected Data of the Italian Thyroid Cancer Observatory. AB - OBJECTIVES: The goal of evidence-based practice guidelines is to optimize the management of emerging diseases, such as differentiated thyroid cancer (DTC). The aim of this study was to assess therapeutic approaches for DTC in Italy and to see how closely these practices conformed to those recommended in the 2009 American Thyroid Association (ATA) guidelines. METHODS: The Italian Thyroid Cancer Observatory was established to collect data prospectively on thyroid cancers consecutively diagnosed in participating centers (uniformly distributed across the nation). Data on the initial treatment of all pathologically confirmed DTC cases present in the database from January 1, 2013 (database creation) to January 31, 2016, were analyzed. RESULTS: A total of 1748 patients (77.2% females; median age 48.1 years [range 10-85 years]) were enrolled in the study. Most (n = 1640; 93.8%) were papillary carcinomas (including 84 poorly differentiated/aggressive variants); 6.2% (n = 108) were follicular and Hurthle cell carcinomas. The median tumor diameter was 11 mm (range 1-93 mm). Tumors were multifocal in 613 (35%) and presented extrathyroidal extension in 492 (28%) cases. Initial treatments included total thyroidectomy (involving one or two procedures; n = 726; 98.8%) and lobectomy (n = 22; 1.2%). A quarter of the patients who underwent total thyroidectomy had unifocal, intrathyroidal tumors <=1 cm (n = 408; 23.6%). Neck dissection was performed in 40.4% of the patients (29.5% had central compartment dissection). Radioiodine remnant ablation (RRA) was performed in 1057 (61.2%) of the 1726 patients who underwent total thyroidectomy: 460 (41.2%) of the 983 classified by 2009 ATA guideline criteria as low-risk, 570 (87.1%) of the 655 as intermediate-risk, and 82 (93.1%) of the 88 as high-risk patients (p < 0.001). RRA was performed in 44% of the cases involving multifocal DTCs measuring <=1 cm. CONCLUSIONS: The treatment approaches for DTCs used in Italy display areas of inconsistency with those recommended by the 2009 ATA guidelines. Italian practices were characterized by underuse of thyroid lobectomy in intrathyroidal, unifocal DTCs <=1 cm. The use of RRA was generally consistent with risk-stratified recommendations. However, its frequent use in small DTCs (<=1 cm) that are multifocal persists, despite the lack of evidence of benefit. These data provide a baseline for future assessments of the impact of international guidelines on DTC management in Italy. These findings also illustrate that the dissemination and implementation of guideline recommendations, and the change in practice patterns, require ongoing education and time. PMID- 29020896 TI - Neonatal tinea corporis. PMID- 29020897 TI - Recognising severe cutaneous adverse drug reactions. PMID- 29020898 TI - Livedo racemosa. PMID- 29020899 TI - Polymorphic light eruption. PMID- 29020900 TI - Phytophotodermatitis from lime juice. PMID- 29020901 TI - Dissecting clinical communication. PMID- 29020902 TI - Whither melanoma in Australia? PMID- 29020903 TI - Explaining the high prevalence of young-onset diabetes among Asians and Indigenous Australians. PMID- 29020904 TI - Nodular melanoma is less likely than superficial spreading melanoma to be histologically associated with a naevus. AB - OBJECTIVES: To determine the frequency of naevus-associated melanoma among superficial spreading and nodular subtypes; and to investigate associations between naevus-associated melanoma and other clinico-pathological characteristics. DESIGN, SETTING AND PARTICIPANTS: Cross-sectional study of all patients with nodular and superficial spreading melanomas diagnosed between 1994 and 2015 at the Victorian Melanoma Service, Melbourne. METHODS AND MAIN OUTCOME MEASURES: Clinical and pathological characteristics of naevus-associated and de novo melanomas were assessed in univariable and multivariable logistic regression analyses. RESULTS: Of 3678 primary melanomas, 1360 (37.0%) were histologically associated with a naevus and 2318 (63.0%) were de novo melanomas; 71 of 621 nodular (11.4%) and 1289 of 3057 superficial spreading melanomas (42.2%) were histologically associated with a naevus. In multivariable analyses, the odds of being associated with a naevus were higher for melanomas located on the trunk (v head and neck: adjusted odds ratio [OR], 2.27; 95% CI, 1.73-2.96; P < 0.001), while the odds were lower for thicker tumours (adjusted OR, 0.75 per millimetre increase in Breslow thickness; 95% CI, 0.69-0.81; P < 0.001), amelanotic/hypomelanotic melanomas (adjusted OR, 0.68; 95% CI, 0.48-0.97; P = 0.035), and older age (patients 70 years or older v patients under 30 at diagnosis: adjusted OR, 0.28; 95% CI, 0.20-0.40; P < 0.001). After adjusting for confounders, the odds of an associated naevus was three times as high for superficial spreading melanomas as for nodular melanomas (adjusted OR, 3.05; 95% CI, 2.24-4.17; P < 0.001). CONCLUSION: Melanomas are most likely to arise in the absence of a pre-existing naevus, particularly nodular melanomas. Public health campaigns should therefore emphasise the detection of suspicious de novo lesions, as well as of changing lesions. PMID- 29020905 TI - The incidence and multiplicity rates of keratinocyte cancers in Australia. AB - OBJECTIVES: To assess the incidence and multiplicity of keratinocyte cancers (basal cell carcinoma [BCC] and squamous cell carcinoma [SCC]) excised in Australia, and to examine variations by age, sex, state, and prior skin cancer history. DESIGN: Analysis of individual-level Medicare data for keratinocyte cancer treatments (identified by eight specific MBS item codes) during 2011-2014. Histological data from the QSkin prospective cohort study were analysed to estimate BCC and SCC incidence. SETTING: A 10% systematic random sample of all people registered with Medicare during 1997-2014. PARTICIPANTS: People aged at least 20 years in 2011 who made at least one claim for any MBS medical service during 2011-2014 (1 704 193 individuals). MAIN OUTCOME MEASURES: Age-standardised incidence rates (ASRs) and standardised incidence ratios (SIRs). RESULTS: The person-based incidence of keratinocyte cancer excisions in Australia was 1531 per 100 000 person-years; incidence increased with age, and was higher for men than women (SIR, 1.43; 95% CI, 1.42-1.45). Lesion-based incidence was 3154 per 100 000 person-years. The estimated ASRs for BCC and SCC were 770 per 100 000 and 270 per 100 000 person-years respectively. During 2011-2014, 3.9% of Australians had one keratinocyte cancer excised, 2.7% had more than one excised; 74% of skin cancers were excised from patients who had two or more lesions removed. Multiplicity was strongly correlated with age; most male patients over 70 were treated for multiple lesions. Keratinocyte cancer incidence was eight times as high among people with a prior history of excisions as among those without. CONCLUSIONS: The incidence and multiplicity of keratinocyte cancer in Australia are very high, causing a large disease burden that has not previously been quantified. PMID- 29020906 TI - The prevalence of monogenic diabetes in Australia: the Fremantle Diabetes Study Phase II. AB - OBJECTIVE: To determine the prevalence of monogenic diabetes in an Australian community. DESIGN: Longitudinal observational study of a cohort recruited between 2008 and 2011. SETTING: Urban population of 157 000 people (Fremantle, Western Australia). PARTICIPANTS: 1668 (of 4639 people with diabetes) who consented to participation (36.0% participation). MAIN OUTCOME MEASURES: Prevalence of maturity-onset diabetes of the young (MODY) and permanent neonatal diabetes in patients under 35 years of age, from European and non-European ethnic backgrounds, who were at risk of MODY according to United Kingdom risk prediction models, and who were then genotyped for relevant mutations. RESULTS: Twelve of 148 young participants with European ethnic backgrounds (8%) were identified by the risk prediction model as likely to have MODY; four had a glucokinase gene mutation. Thirteen of 45 with non-European ethnic backgrounds (28%) were identified as likely to have MODY, but none had a relevant mutation (DNA unavailable for one patient). Two patients with European ethnic backgrounds (one likely to have MODY) had neonatal diabetes. The estimated MODY prevalence among participants with diagnosed diabetes was 0.24% (95% confidence interval [CI], 0.08-0.66%), an overall population prevalence of 89 cases per million; the prevalence of permanent neonatal diabetes was 0.12% (95% CI, 0.02-0.48%) and the population prevalence 45 cases per million. CONCLUSIONS: One in 280 Australians diagnosed with diabetes have a monogenic form; most are of European ethnicity. Diagnosing MODY and neonatal diabetes is important because their management (including family screening) and prognosis can differ significantly from those for types 1 and 2 diabetes. PMID- 29020907 TI - Atopic dermatitis: the new frontier. AB - Atopic dermatitis (AD) is the most common inflammatory skin condition in adults and children. AD is a chronic disease that has a considerable negative impact on the quality of life of patients and their families. Most cases of AD may be effectively treated with topical therapies that are directed at decreasing cutaneous inflammation and alleviating pruritus. These therapies include emollients, antihistamines, topical corticosteroids, topical calcineurin inhibitors and antimicrobial and antiseptic measures; more refractory cases may require additional oral immunosuppression (eg, cyclosporine, azathioprine, methotrexate and mycophenolate). Improved understanding of the immune pathogenesis of AD, including the role of T helper cells and the inflammatory pathways involved, has led to breakthrough translational clinical research and treatment. New targeted immunotherapies, such as inhibitors of interleukin (IL) 4, IL-13, IL-31, Janus associated kinase and phosphodiesterase, have had promising results from phase 2 and 3 trials for patients with moderate to severe AD. PMID- 29020909 TI - Clot retrieval and acute stroke care. PMID- 29020910 TI - Clot retrieval and acute stroke care. PMID- 29020911 TI - Automated diagnosis of melanoma. PMID- 29020908 TI - Cardiac Society of Australia and New Zealand position statement executive summary: coronary artery calcium scoring. AB - Introduction This article summarises the Cardiac Society of Australia and New Zealand position statement on coronary artery calcium (CAC) scoring. CAC scoring is a non-invasive method for quantifying coronary artery calcification using computed tomography. It is a marker of atherosclerotic plaque burden and the strongest independent predictor of future myocardial infarction and mortality. CAC scoring provides incremental risk information beyond traditional risk calculators such as the Framingham Risk Score. Its use for risk stratification is confined to primary prevention of cardiovascular events, and can be considered as individualised coronary risk scoring for intermediate risk patients, allowing reclassification to low or high risk based on the score. Medical practitioners should carefully counsel patients before CAC testing, which should only be undertaken if an alteration in therapy, including embarking on pharmacotherapy, is being considered based on the test result. Main recommendations CAC scoring should primarily be performed on individuals without coronary disease aged 45-75 years (absolute 5-year cardiovascular risk of 10-15%) who are asymptomatic. CAC scoring is also reasonable in lower risk groups (absolute 5-year cardiovascular risk, < 10%) where risk scores traditionally underestimate risk (eg, family history of premature CVD) and in patients with diabetes aged 40-60 years. We recommend aspirin and a high efficacy statin in high risk patients, defined as those with a CAC score >= 400, or a CAC score of 100-399 and above the 75th percentile for age and sex. It is reasonable to treat patients with CAC scores >= 100 with aspirin and a statin. It is reasonable not to treat asymptomatic patients with a CAC score of zero. Changes in management as a result of this statement Cardiovascular risk is reclassified according to CAC score. High risk patients are treated with a high efficacy statin and aspirin. Very low risk patients (ie, CAC score of zero) do not benefit from treatment. PMID- 29020912 TI - Hot water immersion v icepacks for treating pain of Chironex fleckeri stings: a randomised controlled trial. PMID- 29020913 TI - Hot water immersion v icepacks for treating pain of Chironex fleckeri stings: a randomised controlled trial. PMID- 29020914 TI - Driving the AMSA agenda. PMID- 29020915 TI - Around the universities and research institutes. PMID- 29020918 TI - Hox genes reveal genomic DNA variation in tetraploid hybrids derived from Carassius auratus red var. (female) * Megalobrama amblycephala (male). AB - BACKGROUND: Allotetraploid F1 hybrids (4nF1) (AABB, 4n = 148) were generated from the distant hybridization of Carassius auratus red var. (RCC) (AA, 2n = 100) (?) * Megalobrama amblycephala (BSB) (BB, 2n = 48) (?). It has been reported that Hox gene clusters are highly conserved among plants and vertebrates. In this study, we investigated the genomic organization of Hox gene clusters in the allotetraploid F1 hybrids and their parents to investigate the polyploidization process. RESULTS: There were three copies of Hox genes in the 4nF1 hybrids, two copies in RCC and one copy in BSB. In addition, obvious variation and pseudogenization were observed in some Hox genes from 4nF1. CONCLUSION: Our results reveal the influence of polyploidization on the organization and evolution of Hox gene clusters in fish and also clarify some aspects of vertebrate genome evolution. PMID- 29020917 TI - Deciphering the olfactory repertoire of the tiger mosquito Aedes albopictus. AB - BACKGROUND: The Asian tiger mosquito Aedes albopictus is a highly invasive species and competent vector of several arboviruses (e.g. dengue, chikungunya, Zika) and parasites (e.g. dirofilaria) of public health importance. Compared to other mosquito species, Ae. albopictus females exhibit a generalist host seeking as well as a very aggressive biting behaviour that are responsible for its high degree of nuisance. Several complex mosquito behaviours such as host seeking, feeding, mating or oviposition rely on olfactory stimuli that target a range of sensory neurons localized mainly on specialized head appendages such as antennae, maxillary palps and the mouthparts. RESULTS: With the aim to describe the Ae. albopictus olfactory repertoire we have used RNA-seq to reveal the transcriptome profiles of female antennae and maxillary palps. Male heads and whole female bodies were employed as reference for differential expression analysis. The relative transcript abundance within each tissue (TPM, transcripts per kilobase per million) and the pairwise differential abundance in the different tissues (fold change values and false discovery rates) were evaluated. Contigs upregulated in the antennae (620) and maxillary palps (268) were identified and relative GO and PFAM enrichment profiles analysed. Chemosensory genes were described: overall, 77 odorant binding proteins (OBP), 82 odorant receptors (OR), 60 ionotropic receptors (IR) and 30 gustatory receptors (GR) were identified by comparative genomics and transcriptomics. In addition, orthologs of genes expressed in the female/male maxillary palps and/or antennae and involved in thermosensation (e.g. pyrexia and arrestin1), mechanosensation (e.g. piezo and painless) and neuromodulation were classified. CONCLUSIONS: We provide here the first detailed transcriptome of the main Ae. albopictus sensory appendages, i.e. antennae and maxillary palps. A deeper knowledge of the olfactory repertoire of the tiger mosquito will help to better understand its biology and may pave the way to design new attractants/repellents. PMID- 29020919 TI - Cell wall metabolism and hexose allocation contribute to biomass accumulation in high yielding extreme segregants of a Saccharum interspecific F2 population. AB - BACKGROUND: Sugarcane is an emerging dual-purpose biofuel crop for energy and sugar production, owing to its rapid growth rate, high sucrose storage in the stems, and high lignocellulosic yield. It has the highest biomass production reaching 1.9 billion tonnes in 2014 worldwide. RESULTS: To improve sugarcane biomass accumulation, we developed an interspecific cross between Saccharum officinarum 'LA Purple' and Saccharum robustum 'MOL5829'. Selected F1 individuals were self-pollinated to generate a transgressive F2 population with a wide range of biomass yield. Leaf and stem internodes of fourteen high biomass and eight low biomass F2 extreme segregants were used for RNA-seq to decipher the molecular mechanism of rapid plant growth and dry weight accumulation. Gene Ontology terms involved in cell wall metabolism and carbohydrate catabolism were enriched among 3274 differentially expressed genes between high and low biomass groups. Up regulation of cellulose metabolism, pectin degradation and lignin biosynthesis genes were observed in the high biomass group, in conjunction with higher transcript levels of callose metabolic genes and the cell wall loosening enzyme expansin. Furthermore, UDP-glucose biosynthesis and sucrose conversion genes were differentially expressed between the two groups. A positive correlation between stem glucose, but not sucrose, levels and dry weight was detected. CONCLUSIONS: We thus postulated that the high biomass sugarcane plants rapidly convert sucrose to UDP-glucose, which is the building block of cell wall polymers and callose, in order to maintain the rapid plant growth. The gene interaction of cell wall metabolism, hexose allocation and cell division contributes to biomass yield. PMID- 29020920 TI - First identification of Gordonia sputi in a post-traumatic endophthalmitis patient - a case report and literatures review. AB - BACKGROUND: We present a case of post-traumatic endophthalmitis with relatively good prognosis caused by Gordonia sputi, which, to our knowledge is the first case in the literature. CASE PRESENTATION: A 24 year old man, who underwent an intraocular foreign body extraction half a month before presentation in the left eye, was referred to us complaining of blurred vision and slight pain for 5 days. His first presentation showed moderate intracameral and intravitreous purulent inflammation with a best corrected vision of counting fingers. After gram staining of the intravitreous samples revealed a gram-positive bacilli infection, a combination of amikacin and vancomycin was initially injected intravitreously. The left eye kept stable for three days but deteriorated on the 4th day. On the 5th day after presentation conventional culture characterized the bacterium as an Actinomyces sp. while 16S ribosomal RNA gene sequencing confirmed it as Gordonia sputi. Thereby a complete pars plana vitrectomy combined with lensectomy and silicone oil tamponade was performed. During the surgery an intraocular irrigation with penicillin G was adopted, followed by administration of intravenous penicillin G twice one day for a week. A relatively normal fundus with slight intracameral inflammation was observed a week after the operation, and the best corrected vision recovered to 0.15. One year later his vision remained 0.1. CONCLUSION: Gordonia sputi should be taken into consideration in patients with post-traumatic endophthalmitis especially due to foreign body penetration. Compared to conventional laboratories, molecular methods are recommended for an accurate diagnosis. A comprehensive strategy of antimicrobial agents and vitrectomy may render a satisfactory result. PMID- 29020916 TI - Integrated analysis of coding genes and non-coding RNAs during hair follicle cycle of cashmere goat (Capra hircus). AB - BACKGROUND: Cashmere growth is a seasonal and cyclic phenomenon under the control of photoperiod and multiple stimulatory and inhibitory signals. Beyond relevant coding genes, microRNA (miRNA) and long non coding RNA (lncRNA) play an indispensable role in hair follicle (HF) development and skin homeostasis. Furthermore, the influence of lncRNA upon miRNA function is also rapidly emerging. However, little is known about miRNAs, lncRNAs and their functions as well as their interactions on cashmere development and cycling. RESULT: Here, based on lncRNA and miRNA high-throughput sequencing and bioinformatics analysis, we have identified 1108 lncRNAs and 541 miRNAs in cashmere goat skin during anagen and telogen. Compared with telogen, 1388 coding genes, 41 lncRNAs and 15 miRNAs were upregulated, while 1104 coding genes, 157 lncRNAs and 8 miRNAs were downregulated in anagen (adjusted P-value <=0.05 and relative fold-change >=2). Subsequently, we investigated the impact of lncRNAs on their target genes in cis and trans, indicating that these lncRNAs are functionally conserved during HF development and cycling. Furthermore, miRNA-mRNA and miRNA-lncRNA interaction were identified through the bioinformatics algorithm miRanda, then the ceRNA networks, miR-221-5p-lnc_000679-WNT3, miR-34a-lnc_000181-GATA3 and miR-214-3p lnc_000344-SMAD3, were constructed under defined rules, to illustrate their roles in cashmere goat HF biology. CONCLUSION: The present study provides a resource for lncRNA, miRNA and mRNA studies in cashmere cycling and development. We also demonstrate potential ceRNA regulatory networks in cashmere goat HF cycling for the first time. It expands our knowledge about lncRNA and miRNA biology as well as contributes to the annotation of the goat genome. PMID- 29020921 TI - Identify Huntington's disease associated genes based on restricted Boltzmann machine with RNA-seq data. AB - BACKGROUND: Predicting disease-associated genes is helpful for understanding the molecular mechanisms during the disease progression. Since the pathological mechanisms of neurodegenerative diseases are very complex, traditional statistic based methods are not suitable for identifying key genes related to the disease development. Recent studies have shown that the computational models with deep structure can learn automatically the features of biological data, which is useful for exploring the characteristics of gene expression during the disease progression. RESULTS: In this paper, we propose a deep learning approach based on the restricted Boltzmann machine to analyze the RNA-seq data of Huntington's disease, namely stacked restricted Boltzmann machine (SRBM). According to the SRBM, we also design a novel framework to screen the key genes during the Huntington's disease development. In this work, we assume that the effects of regulatory factors can be captured by the hierarchical structure and narrow hidden layers of the SRBM. First, we select disease-associated factors with different time period datasets according to the differentially activated neurons in hidden layers. Then, we select disease-associated genes according to the changes of the gene energy in SRBM at different time periods. CONCLUSIONS: The experimental results demonstrate that SRBM can detect the important information for differential analysis of time series gene expression datasets. The identification accuracy of the disease-associated genes is improved to some extent using the novel framework. Moreover, the prediction precision of disease associated genes for top ranking genes using SRBM is effectively improved compared with that of the state of the art methods. PMID- 29020922 TI - A multiple genome analysis of Mycobacterium tuberculosis reveals specific novel genes and mutations associated with pyrazinamide resistance. AB - BACKGROUND: Tuberculosis (TB) is a major global health problem and drug resistance compromises the efforts to control this disease. Pyrazinamide (PZA) is an important drug used in both first and second line treatment regimes. However, its complete mechanism of action and resistance remains unclear. RESULTS: We genotyped and sequenced the complete genomes of 68 M. tuberculosis strains isolated from unrelated TB patients in Peru. No clustering pattern of the strains was verified based on spoligotyping. We analyzed the association between PZA resistance with non-synonymous mutations and specific genes. We found mutations in pncA and novel genes significantly associated with PZA resistance in strains without pncA mutations. These included genes related to transportation of metal ions, pH regulation and immune system evasion. CONCLUSIONS: These results suggest potential alternate mechanisms of PZA resistance that have not been found in other populations, supporting that the antibacterial activity of PZA may hit multiple targets. PMID- 29020923 TI - Comparative analysis of miRNA expression during the development of insects of different metamorphosis modes and germ-band types. AB - BACKGROUND: Do miRNAs contribute to specify the germ-band type and the body structure in the insect embryo? Our goal was to address that issue by studying the changes in miRNA expression along the ontogeny of the German cockroach Blattella germanica, which is a short germ-band and hemimetabolan species. RESULTS: We sequenced small RNA libraries representing 11 developmental stages of B. germanica ontogeny (with especial emphasis on embryogenesis) and the changes in miRNA expression were examined. Data were compared with equivalent data for two long germ-band holometabolan species Drosophila melanogaster and Drosophila virilis, and the short germ-band holometabolan species Tribolium castaneum. The identification of B. germanica embryo small RNA sequences unveiled miRNAs not detected in previous studies, such as those of the MIR-309 family and 54 novel miRNAs. Four main waves of miRNA expression were recognized (with most miRNA changes occurring during the embryonic stages): the first from day 0 to day 1 of embryogenesis, the second during mid-embryogenesis (days 0-6), the third (with an acute expression peak) on day 2 of embryonic development, and the fourth during post-embryonic development. The second wave defined the boundaries of maternal-to zygotic transition, with maternal mRNAs being cleared, presumably by Mir-309 and associated scavenger miRNAs. CONCLUSION: miRNAs follow well-defined patterns of expression over hemimetabolan ontogeny, patterns that are more diverse during embryonic development than during the nymphal stages. The results suggest that miRNAs play important roles in the developmental transitions between the embryonic stages of development (starting with maternal loading), during which they might influence the germ-band type and metamorphosis mode. PMID- 29020925 TI - VDJPipe: a pipelined tool for pre-processing immune repertoire sequencing data. AB - BACKGROUND: Pre-processing of high-throughput sequencing data for immune repertoire profiling is essential to insure high quality input for downstream analysis. VDJPipe is a flexible, high-performance tool that can perform multiple pre-processing tasks with just a single pass over the data files. RESULTS: Processing tasks provided by VDJPipe include base composition statistics calculation, read quality statistics calculation, quality filtering, homopolymer filtering, length and nucleotide filtering, paired-read merging, barcode demultiplexing, 5' and 3' PCR primer matching, and duplicate reads collapsing. VDJPipe utilizes a pipeline approach whereby multiple processing steps are performed in a sequential workflow, with the output of each step passed as input to the next step automatically. The workflow is flexible enough to handle the complex barcoding schemes used in many immunosequencing experiments. Because VDJPipe is designed for computational efficiency, we evaluated this by comparing execution times with those of pRESTO, a widely-used pre-processing tool for immune repertoire sequencing data. We found that VDJPipe requires <10% of the run time required by pRESTO. CONCLUSIONS: VDJPipe is a high-performance tool that is optimized for pre-processing large immune repertoire sequencing data sets. PMID- 29020926 TI - A comparison of the use of propofol alone and propofol with midazolam for pediatric magnetic resonance imaging sedation - a retrospective cohort study. AB - BACKGROUND: Pediatric MRI sedation performed by a variety of specialists such as sedationists and anesthesiologists commonly uses propofol, which has similar effects to an ideal sedative agent for maintaining deep sedation. However, when propofol is used, adverse airway events are relatively more common than when using other sedative agents. The concomitant administration of midazolam and propofol can reduce the dose of propofol needed for adequate sedation and might also reduce the frequency of airway obstruction without affecting the patient's recovery profile. METHODS: We reviewed the our hospital records of all pediatric MRI sedation patients aged 3 to 16 years who were sedated with either propofol alone or propofol with midazolam between December 2013 and June 2016. RESULTS: Eight hundred ninety-seven pediatric MRI sedation patients were included (n = 897). The frequency of airway intervention was 25/356 (7.0%) in Group P and 15/541 (2.8%) in Group PM (difference in proportions: 4.2%; 95% CI: 1.4-7.6%; p = 0.002). The mean (SD) time to awake was longer in Group PM compared to Group P [21.2 (5.6) minutes vs. 23.0 (7.1) minutes; mean difference, 1.8 min; 95% CI, 0.9 2.9; p < 0.001]. The mean (SD) time to discharge was longer in Group PM compared to Group P [34.5 (6.9) minutes vs. 38.6 (9.4) minutes; mean difference, 4.0 min; 95% CI, 3.0-5.1; p < 0.001]. CONCLUSIONS: The administration of a small dose of midazolam during pediatric MRI sedation using propofol can reduce the frequency of airway complications without prolonging the clinically significant recovery profile. PMID- 29020927 TI - Dilemmas in a pregnant woman with myelofibrosis secondary to signet ring adenocarcinoma: a case report. AB - BACKGROUND: We describe the first reported case of myelofibrosis as an extremely rare complication of gastric cancer during pregnancy; the clinical diagnosis and treatment of which is highly challenging due to nonspecific symptoms coupled with the conflicting needs of immediate disease control and continuation of pregnancy. CASE PRESENTATION: We report a 36-year-old pregnant woman who presented with cytopenia, fatigue, vomiting, and diarrhea for 20 days on the background of newly diagnosed myelofibrosis secondary to gastric signet ring adenocarcinoma. She accepted palliative care and died several months after the delivery of a healthy newborn. CONCLUSION: Signet ring gastric adenocarcinoma is an unusual cause of myelofibrosis during pregnancy. Treatment remains a great challenge as clinicians have to consider the needs of immediate treatment against fetal well-being while taking into account patient preference and fetus rights. PMID- 29020928 TI - G allele at -924 A > G position of FoxP3 gene promoter as a risk factor for tuberculosis. AB - BACKGROUND: Forkhead box protein 3 (FoxP3) is an important factor for development and function of Regulatory T cells (Treg). Studies have found an association between common gene polymorphisms in FoxP3 and some infectious diseases. The aim of this study was to evaluate possible associations between two Single nucleotide polymorphisms (SNPs) in the promoter of the FoxP3 gene to susceptibility to tuberculosis (TB) and the alteration of Foxp3 gene expression. METHODS: The pattern distribution of genotype at two position, -3279 A > C (rs3761548) and 924 A > G (rs2232365) on the promoter of FoxP3 gene was evaluated using polymerase chain reaction-single specific primer (PCR-SSP) method in 183 tuberculosis patients and 183 healthy control. In addition the quantity of FoxP3 gene expression at mRNA level was identified by the real-time PCR. RESULTS: The frequency of G allele at -924 A > G was significantly higher was higher in TB patients (59.5%) than control group (39.5%) (P <= 0.05). In addition, our data viewed approximately 5- folds more FoxP3 gene expression in female patients with GG genotype in comparison to female healthy cases with the same genotype (P <= 0.001). There was no statistically significant differences between the distribution pattern of -3279 A > C polymorphism in patients and healthy individuals along with it effect on the FoxP3 gene expression among both groups (P > 0.05). CONCLUSIONS: Our outcome suggests that the -924 A > G polymorphism leads to enhance FoxP3 gene expression and susceptibility to tuberculosis in the sex dependent manner. This event may rise the count of Treg cells and modulate the immune response against tuberculosis. PMID- 29020929 TI - A scoping review of prevalence, incidence and risk factors for HIV infection amongst young people in Brazil. AB - BACKGROUND: Despite young people being a key population for HIV prevention, the HIV epidemic amongst young Brazilians is perceived to be growing. We therefore reviewed all published literature on HIV prevalence and risk factors for HIV infection amongst 10-25 year olds in Brazil. METHODS: We searched Embase, LILACS, Proquest, PsycINFO, PubMed, Scopus and Web of Science for studies published up to March 2017 and analyzed reference lists of relevant studies. We included published studies from any time in the HIV epidemic which provided estimates specific to ages 10-25 (or some subset of this age range) for Brazilians on either: (a) HIV prevalence or incidence; or (b) the association between HIV and socio-demographic or behavioral risk factors. RESULTS: Forty eight publications met the inclusion criteria: 44 cross-sectional, two case-control, two cohort. Four studies analysed national data. Forty seven studies provided HIV prevalence estimates, largely for six population subgroups: Counselling and Testing Center attendees; blood donors; pregnant women; institutional individuals; men-who-have sex-with-men (MSM) and female sex workers (FSW); four provided HIV incidence estimates. Twelve studies showed HIV status to be associated with a wide range of risk factors, including age, sexual and reproductive history, infection history, substance use, geography, marital status, mental health and socioeconomic status. CONCLUSIONS: Few published studies have examined HIV amongst young people in Brazil, and those published have been largely cross-sectional and focused on traditional risk groups and the south of the country. Despite these limitations, the literature shows raised HIV prevalence amongst MSM and FSW, as well as amongst those using drugs. Time trends are harder to identify, although rates appear to be falling for pregnant women, possibly reversing an earlier de masculinization of the epidemic. Improved surveillance of HIV incidence, prevalence and risk factors is a key component of efforts to eliminate HIV in Brazil. PMID- 29020924 TI - Plant jasmonate ZIM domain genes: shedding light on structure and expression patterns of JAZ gene family in sugarcane. AB - BACKGROUND: Sugarcane smut caused by Sporisorium scitamineum is one of the most severe fungal diseases in the sugarcane industry. Using a molecular biological technique to mine sugarcane resistance genes can provide gene resources for further genetic engineering of sugarcane disease-resistant breeding. Jasmonate ZIM (zinc-finger inflorescence meristem) domain (JAZ) proteins, which involved in the responses to plant pathogens and abiotic stresses, are important signaling molecules of the jasmonic acid (JA) pathway. RESULTS: Seven differentially expressed sugarcane JAZ genes, ScJAZ1-ScJAZ7, were mined from the transcriptome of sugarcane after inoculation with S. scitamineum. Bioinformatic analyses revealed that these seven ScJAZ genes encoded basic proteins that contain the TIFY and CCT_2 domains. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis demonstrated that the ScJAZ1-ScJAZ7 genes were tissue specific and differentially expressed under adverse stress. During S. scitamineum infection, the transcripts of ScJAZ4 and ScJAZ5 were both upregulated in the susceptible genotype ROC22 and the resistant genotype Yacheng05-179; ScJAZ1, ScJAZ2, ScJAZ3, and ScJAZ7 were downregulated in Yacheng05-179 and upregulated in ROC22; and the expression of ScJAZ6 did not change in ROC22, but was upregulated in Yacheng05-179. The transcripts of the seven ScJAZ genes were increased by the stimuli of salicylic acid and abscisic acid, particularly methyl jasmonate. The expression of the genes ScJAZ1-ScJAZ7 was immediately upregulated by the stressors hydrogen peroxide, sodium chloride, and copper chloride, whereas slightly induced after treatment with calcium chloride and polyethylene glycol. In addition, the expression of ScJAZ6, as well as seven tobacco immunity associated marker genes were upregulated, and antimicrobial activity against Pseudomonas solanacearum and Fusarium solani var. coeruleum was observed during the transient overexpression of ScJAZ6 in Nicotiana benthamiana, suggesting that the ScJAZ6 gene is associated with plant immunity. CONCLUSIONS: The different expression profiles of the ScJAZ1-ScJAZ7 genes during S. scitamineum infection, the positive response of ScJAZ1-ScJAZ7 to hormones and abiotic treatments, and the function analysis of the ScJAZ6 gene revealed their involvement in the defense against biotic and abiotic stresses. The findings of the present study facilitate further research on the ScJAZ gene family especially their regulatory mechanism in sugarcane. PMID- 29020930 TI - The XRCC 1 DNA repair gene modifies the environmental risk of stomach cancer: a hospital-based matched case-control study. AB - BACKGROUND: Previous studies have found that polymorphisms of the DNA repair gene X-ray repair cross-complementing group 1(XRCC1) and environmental factors are both associated with an increased risk of stomach cancer, but no study has reported on the potential additive effect of these factors among Thai people. The aim of this study was to investigate whether the risk of stomach cancer from XRCC1 gene polymorphisms was modified by environmental factors in the Thai population. METHODS: Hospital-based matched case-control study data were collected from 101 new stomach cancer cases and 202 controls, which were recruited from2002 to 2006 and were matched for gender and age. Genotype analysis was performed using real-time PCR-HRM. The data were analysed by the chi-square test and conditional logistic regression. RESULTS: The Arg/Arg homozygote polymorphism of the XRCC1 gene was associated with an increased risk of stomach cancer in the Thai population (OR adj, 3.7; 95%CI, 1.30-10.72) compared with Gln/Gln homozygosity. The effect of the XRCC1gene on the risk of stomach cancer was modified by both a high intake of vegetable oils and salt (p = 0.036 and p = 0.014), particularly for the Arg/Arg homozygous genotype. There were, however, no additive effects on the risk of stomach cancer between variants of the XRCC1gene and smoking,alcohol or pork oil consumption. CONCLUSIONS: The effect of the XRCC1 gene homozygosity, particularly Arg/Arg, on the risk for stomach cancer was elevated by a high intake of vegetable oils and salt. PMID- 29020931 TI - Weight management during pregnancy: a qualitative study of women's and care providers' experiences and perspectives. AB - BACKGROUND: Obesity during pregnancy is a serious health problem for women and their children. Despite the high prevalence of high body mass index (BMI) among women of reproductive age in high-income countries, there is insufficient evidence to inform practice and policy about weight management for women with high BMI who are pregnant. The aim of this project was to describe women's and midwives' experiences and perspectives of care for weight management during pregnancy in Melbourne, Australia. METHODS: A qualitative study. Semi-structured interviews were conducted with pregnant women and midwives. Transcripts were analysed thematically. RESULTS: A total of 17 women and 2 midwives were interviewed. Five themes were identified: 1. Reluctance to and difficulties discussing weight and its implications; 2. Barriers to providing appropriate pregnancy care for women with high BMI; 3. Inconsistent weighing practices; 4. Beliefs about the causes of obesity; and 5. Opportunities to assist women to manage their weight. Although most women were satisfied with the pregnancy care they had received, both women and midwives expressed concerns about effective weight management during pregnancy. These included constraints on discussing weight, difficulties accessing appropriate resources and additional support from other health care providers, and inconsistent weighing practices. CONCLUSIONS: The findings suggest that women with high BMI would benefit from additional information and support about weight management prior to conception, during pregnancy, and postnatally. PMID- 29020932 TI - Difficult conversations: Australian Indigenous patients' views on kidney transplantation. AB - BACKGROUND: Indigenous Australians suffer a disproportionate burden of end stage kidney disease (ESKD) but are significantly less likely to receive a transplant. This study explores Indigenous ESKD patients' views on transplantation as a treatment option. METHODS: The Improving Access to Kidney Transplants (IMPAKT) research program investigated barriers to kidney transplantation for Indigenous Australians. An interview study, conducted in 2005-2006, elicited illness experience narratives from 146 Indigenous patients, including views on transplant. Interviews were conducted at 26 sites that collectively treat the majority of Indigenous ESKD patients. Key themes were identified via team consensus meetings, providing a flexible framework and focus for continued coding. RESULTS: Four inter-related themes were identified in patient commentary: a very high level (90% of respondents) of positive interest in transplantation; patients experienced a range of communication difficulties and felt uninformed about transplant; family involvement in decision-making was constrained by inadequate information; and patients needed to negotiate cultural and social sensitivities around transplantation. CONCLUSIONS: Indigenous ESKD patients demonstrated an intense interest in transplantation preferring deceased over living kidney donation. Patients believe transplant is the path most likely to support the re-establishment of their 'normal' family life. Patients described themselves as poorly informed; most had only a rudimentary knowledge of the notion of transplant but no understanding of eligibility criteria, the transplant procedure and associated risks. Patients experienced multiple communication barriers that - taken together - undermine their engagement in treatment decision making. Families and communities are disempowered because they also lack information to reach a shared understanding of transplantation. Cultural sensitivities associated with transplantation were described but these did not appear to constrain patients in making choices about their own health. Transplant units and local treatment providers should collaborate to develop user-friendly, culturally informed and region-specific patient education programs. Quality improvement cycles should underpin the development of national guidelines for patient education. Noting Indigenous patients' intense interest in transplantation, and nephrologists' concerns regarding poor transplant outcomes, research should prioritise exploring the predictors of transplant outcomes for Indigenous Australians. PMID- 29020933 TI - Partially covered metal stents have longer patency than uncovered and fully covered metal stents in the management of distal malignant biliary obstruction: a retrospective study. AB - BACKGROUND: Self-expandable metal stents (SEMSs) are widely used for malignant biliary obstructions. Nitinol-covered SEMSs have been developed to improve stent patency. Currently, SEMSs may be uncovered, partially covered, or fully covered; however, there is no consensus on the best stent type for the management of malignant distal biliary obstruction (MDBO). METHODS: Patients with unresectable MDBO receiving SEMS (WallflexTM) were retrospectively analyzed. Time to recurrent biliary obstruction (TRBO) and survival time were compared among the three types of SEMSs. Univariate and multivariate analyses were performed to identify risk factors for stent dysfunction. RESULTS: In total, 101 patients received SEMSs for unresectable MDBO (44 uncovered, 28 partially covered, and 29 fully covered SEMSs). Median survival time was 200, 168, and 276 days in the uncovered, partially covered, and fully covered SEMSs groups, respectively. There were no differences in survival among the three groups. Median TRBO was 199, 444, and 194 days in the uncovered, partially covered, and fully covered SEMSs groups, respectively. Partially covered SEMSs had longer TRBO than uncovered (p = 0.013) and fully covered (p = 0.010) SEMSs. Tumor ingrowth occurred only with uncovered SEMSs and stent migration occurred only with fully covered SEMSs. Multivariate analyses confirmed that partially covered SEMSs have lower risk of dysfunction. CONCLUSIONS: Partially covered SEMSs with a proximal uncovered flared end have longer patency than uncovered and fully covered SEMSs by preventing tumor ingrowth and stent migration. PMID- 29020934 TI - Transcriptome analyses reveal SR45 to be a neutral splicing regulator and a suppressor of innate immunity in Arabidopsis thaliana. AB - BACKGROUND: Regulation of pre-mRNA splicing diversifies protein products and affects many biological processes. Arabidopsis thaliana Serine/Arginine-rich 45 (SR45), regulates pre-mRNA splicing by interacting with other regulatory proteins and spliceosomal subunits. Although SR45 has orthologs in diverse eukaryotes, including human RNPS1, the sr45-1 null mutant is viable. Narrow flower petals and reduced seed formation suggest that SR45 regulates genes involved in diverse processes, including reproduction. To understand how SR45 is involved in the regulation of reproductive processes, we studied mRNA from the wild-type and sr45 1 inflorescences using RNA-seq, and identified SR45-bound RNAs by immunoprecipitation. RESULTS: Using a variety of bioinformatics tools, we identified a total of 358 SR45 differentially regulated (SDR) genes, 542 SR45 dependent alternative splicing (SAS) events, and 1812 SR45-associated RNAs (SARs). There is little overlap between SDR genes and SAS genes, and neither set of genes is enriched for flower or seed development. However, transcripts from reproductive process genes are significantly overrepresented in SARs. In exploring the fate of SARs, we found that a total of 81 SARs are subject to alternative splicing, while 14 of them are known Nonsense-Mediated Decay (NMD) targets. Motifs related to GGNGG are enriched both in SARs and near different types of SAS events, suggesting that SR45 recognizes this motif directly. Genes involved in plant defense are significantly over-represented among genes whose expression is suppressed by SR45, and sr45-1 plants do indeed show enhanced immunity. CONCLUSION: We find that SR45 is a suppressor of innate immunity. We find that a single motif (GGNGG) is highly enriched in both RNAs bound by SR45 and in sequences near SR45- dependent alternative splicing events in inflorescence tissue. We find that the alternative splicing events regulated by SR45 are enriched for this motif whether the effect of SR45 is activation or repression of the particular event. Thus, our data suggests that SR45 acts to control splice site choice in a way that defies simple categorization as an activator or repressor of splicing. PMID- 29020935 TI - A retrospective cohort study to predict severe dengue in Honduran patients. AB - BACKGROUND: An important challenge in the identification of dengue is how to predict which patients will go on to experience severe illness, which is typically characterized by fever, thrombocytopenia, haemorrhagic manifestations, and plasma leakage. Accurate prediction could result in the appropriate hospital triage of high risk patients. The objective of this study was to identify clinical factors observed within the first 24 h of hospital admission that could predict subsequent severe dengue. METHODS: We conducted a retrospective cohort study of 320 patients with febrile illness who had confirmation of dengue within one week of admission, using data from the 2009-2010 Honduras Epidemiological Survey for Dengue. The outcome measure was plasma leakage defined using hemoconcentration >=15% as determined by serial hematocrit testing. We conducted univariable analysis and multivariable logistic regression analysis to construct a predictive model for severe dengue. RESULTS: Thirty-four (10.6%) of patients in the 320 patient cohort had hemoconcentration >=15%. In the final multivariable logistic regression model the presence of ascites, OR 7.29, 95% CI 1.85 to 28.7, and a platelet count <50,000 platelets/mm3 at admission, OR 3.02, 95% CI 1.42 to 6.42, were significantly associated with plasma leakage, while the presence of petechiae, OR 0.24 95% CI 0.080 to 0.73, and headache, OR 0.38, 95% CI 0.15 to 0.95, were negatively associated with leakage. Using an estimated probability of 7% as a threshold for a person being considered a severe case correctly predicted 26 of the 34 severe cases (sensitivity 76.4%) and 201 of the 286 non-severe cases (specificity of 70.3%) for a percentage correctly classified of 70.9%. CONCLUSION: We identified signs and symptoms that can correctly identify a majority of patients who eventually develop severe dengue in Honduras. It will be important to further refine our models and validate them in other populations. PMID- 29020936 TI - Staggering the dose of sugammadex lowers risks for severe emergence cough: a randomized control trial. AB - BACKGROUND: Cough on emergence has been reported as a common adverse reaction with sugammadex reversal. We investigated if staggering the dose of sugammadex will reduce emergence cough in a single-center, randomized, double-blinded study. METHODS: A hundred and twenty ASA 1-3 adults were randomly reversed with 1 mg/kg sugammadex prior to extubation followed by another 1 mg/kg immediately after extubation (staggered group), single dose of 2 mg/kg sugammadex (single bolus group) or neostigmine 0.02 mg/kg with glycopyrrolate (neostigmine group). RESULTS: We found 70% of patients (n = 28) reversed with single boluses of sugammadex had Grade 3 emergence cough compared to 12.5% (n = 5) in the staggered sugammadex group and 17.5% (n = 7) in the neostigmine group (p < 0.001). Besides cough, emergence agitation also appeared highest in the single bolus sugammadex group (n = 14, 35%, p = 0.005). On the other hand, staggering sugammadex lowered risks of developing severe cough (RR 0.2, p < 0.001) and agitation (RR 0.43, p = 0.010) on emergence in addition to cough (RR 0.25, p = 0.039) and early sore throat (RR 0.70, p = 0.036) in the post-anesthetic care unit. The risks for severe emergence cough (RR 0.86, p = 0.762), severe cough in the post-anesthetic care unit (RR 1.0, p = 1.000) and sore throat (RR 1.17, p = 0.502) were also not different between the staggered sugammadex group and control given neostigmine. In terms of timing, there was no delay in time taken from discontinuing anesthetic agents to reversal and extubation if sugammadex was staggered (emergence time 6.0 +/- 3.2 s, p = 0.625 and reversal time 6.5 +/- 3.5, p = 0.809). CONCLUSIONS: Staggering the dose of sugammadex for reversal will effectively decrease common emergence and early postoperative complications. TRIAL REGISTRATION: ANZCTR Number ACTRN12616000116426 . Retrospectively registered on 2nd February 2016. PMID- 29020937 TI - The prognostic value of pretreatment tumor apparent diffusion coefficient values in nasopharyngeal carcinoma. AB - BACKGROUND: Diffusion-weighted MR imaging (DWI) has increasingly contributed to the management of nasopharyngeal carcinoma (NPC) patients. The objective of this paper was to explore the prognostic significance of apparent diffusion coefficient (ADC) values in 93 NPC patients. METHODS: This retrospective study included 93 newly diagnosed NPC patients. Pretreatment ADC values were determined and compared with patients' age, gender, alcohol intake, smoking, tumor volume, pathological type, tumor stage, and nodal stage. Using the Kaplan-Meier method, overall survival (OS), local relapse-free survival (LRFS), and distant metastasis free survival (DMFS) were calculated and the values compared between the low and high ADC groups. Multivariate analysis of ADC values and other 9 clinical parameters was performed using a Cox proportional hazards model to test the independent significance for OS, LRFS and DMFS. RESULTS: The mean ADC value for the initial nasopharyngeal tumors was 0.72 * 10-3 mm2/s (range: 0.48-0.97 * 10-3 mm2/s). There was no significant difference between pretreatment ADCs and patient' gender, age, smoking, alcohol intake, or tumor stage. A significant difference in the ADCs for different N stages (P = 0.022) and correlation with initial tumor volume (r = -0.26, P = 0.012) were observed. In comparison, the ADC value for undifferentiated carcinoma was lower than that for other 3 pathological types. With a median follow-up period of 50 months, the 3-year and 5-year OS rates were 88.2% and 83.3%, respectively, 3-year and 5-year LRFS rates were 93.5% and 93.3%, respectively, and 3-year and 5-year DMFS rates were 83.9% and 83.3%, respectively. Patients with tumor ADC values >=0.72 * 10-3 mm2/s exhibited longer OS and LRFS periods compared with tumor ADC values <0.72 * 10-3 mm2/s, with P values 0.036 and 0.018, respectively. In addition, patients with deaths or recurrences or distant metastasis had significant lower ADC values than those without disease failures. According to a multivariate analysis using the Cox proportional hazard test, ADC values showed a significant correlation with OS (P = 0.0004), LRFS (P = 0.0009), and DMFS (P < 0.0001), respectively. CONCLUSIONS: Pretreatment tumor ADC values supposed to be a noninvasive important prognostic parameter for NPC. PMID- 29020938 TI - Trends in levels of self-reported psychological distress among individuals who seek psychiatric services over eight years: a comparison between age groups in three population surveys in Stockholm County. AB - BACKGROUND: Psychiatric service use has increased in Sweden and in other developed countries, particularly among young people. Possible explanations include lower threshold for help-seeking among young people, but evidence is scarce. METHODS: We analysed the 2002, 2006 and 2010 Stockholm public health surveys for changes in the mean level of psychological distress among adult users of psychiatric in- and outpatient services in four age groups: 18-24, 25-44, 45 64 and >=65 years. Psychological distress was measured via the 12-item General Health Questionnaire (GHQ-12), using the Likert scoring method 0-1-2-3. In- and out-patient psychiatric service use within 6 months from the surveys was obtained from registers. RESULTS: The mean level of distress among young adults 18-24 years who utilize psychiatric services decreased between 2002 (mean GHQ-12 score, 95% confidence interval 20.5, 18.1-23.0) and 2010 (16.2, 14.6-17.7), while it remained fairly stable in older age groups. Results were similar in sex stratified analyses, although the decrease was statistically significant only among young women 18-24 years. At the end of the follow-up, the level of distress among patients was similar for all age-groups. CONCLUSIONS: There were no differences between age groups in the level of distress when seeking care at the end of the follow-up period, supporting that there is no age-specific over- or under-consumption of psychiatric care in later years. However, the lowered threshold for help-seeking among young adults over time might have contributed to increases in psychiatric service use in the young age group. Public health policy and service delivery planning should consider the needs of the widening group of young users of psychiatric services. PMID- 29020939 TI - A transcriptomic approach to study the effect of long-term starvation and diet composition on the expression of mitochondrial oxidative phosphorylation genes in gilthead sea bream (Sparus aurata). AB - BACKGROUND: The impact of nutritional status and diet composition on mitochondrial oxidative phosphorylation (OXPHOS) in fish remains largely unknown. To identify biomarkers of interest in nutritional studies, herein we obtained a deep-coverage transcriptome by 454 pyrosequencing of liver and skeletal muscle cDNA normalised libraries from long-term starved gilthead sea bream (Sparus aurata) and fish fed different diets. RESULTS: After clean-up of high-throughput deep sequencing reads, 699,991 and 555,031 high-quality reads allowed de novo assembly of liver and skeletal muscle sequences, respectively (average length: 374 and 441 bp; total megabases: 262 and 245 Mbp). An additional incremental assembly was completed by integrating data from both tissues (hybrid assembly). Assembly of hybrid, liver and skeletal muscle transcriptomes yielded, respectively, 19,530, 11,545 and 10,599 isotigs (average length: 1330, 1208 and 1390 bp, respectively) that were grouped into 15,954, 10,033 and 9189 isogroups. Following annotation, hybrid transcriptomic data were used to construct an oligonucleotide microarray to analyse nutritional regulation of the expression of 129 genes involved in OXPHOS in S. aurata. Starvation upregulated cytochrome c oxidase components and other key OXPHOS genes in the liver, which exhibited higher sensitive to food deprivation than the skeletal muscle. However, diet composition affected OXPHOS in the skeletal muscle to a greater extent than in the liver: most of genes upregulated under starvation presented higher expression among fish fed a high carbohydrate/low protein diet. CONCLUSIONS: Our findings indicate that the expression of coenzyme Q-binding protein (COQ10), cytochrome c oxidase subunit 6A2 (COX6A2) and ADP/ATP translocase 3 (SLC25A6) in the liver, and cytochrome c oxidase subunit 5B isoform 1 (COX5B1) in the liver and the skeletal muscle, are sensitive markers of the nutritional condition that may be relevant to assess the effect of changes in the feeding regime and diet composition on fish farming. PMID- 29020940 TI - The epidemiology and transmission of methicillin-resistant Staphylococcus aureus in the community in Singapore: study protocol for a longitudinal household study. AB - BACKGROUND/AIM: Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most common multidrug-resistant organisms in healthcare settings worldwide, but little is known about MRSA transmission outside of acute healthcare settings especially in Asia. We describe the methods for a prospective longitudinal study of MRSA prevalence and transmission. METHODS: MRSA-colonized individuals were identified from MRSA admission screening at two tertiary hospitals and recruited together with their household contacts. Participants submitted self-collected nasal, axilla and groin (NAG) swabs by mail for MRSA culture at baseline and monthly thereafter for 6 months. A comparison group of households of MRSA negative patients provided swab samples at one time point. In a validation sub study, separate swabs from each site were collected from randomly selected individuals, to compare MRSA detection rates between swab sites, and between samples collected by participants versus those collected by trained research staff. Information on each participant's demographic information, medical status and medical history, past healthcare facilities usage and contacts, and personal interactions with others were collected using a self-administered questionnaire. DISCUSSION/CONCLUSION: Understanding the dynamics of MRSA persistence and transmission in the community is crucial to devising and evaluating successful MRSA control strategies. Close contact with MRSA colonized patients may to be important for MRSA persistence in the community; evidence from this study on the extent of community MRSA could inform the development of household- or community based interventions to reduce MRSA colonization of close contacts and subsequent re-introduction of MRSA into healthcare settings. Analysis of longitudinal data using whole-genome sequencing will yield further information regarding MRSA transmission within households, with significant implications for MRSA infection control outside acute hospital settings. PMID- 29020941 TI - Fine mapping of a QTL affecting levels of skatole on pig chromosome 7. AB - BACKGROUND: Previous studies in the Norwegian pig breeds Landrace and Duroc have revealed a QTL for levels of skatole located in the region 74.7-80.5 Mb on SSC7. Skatole is one of the main components causing boar taint, which gives an undesirable smell and taste to the pig meat when heated. Surgical castration of boars is a common practice to reduce the risk of boar taint, however, a selection for boars genetically predisposed for low levels of taint would help eliminating the need for castration and be advantageous for both economic and welfare reasons. In order to identify the causal mutation(s) for the QTL and/or identify genetic markers for selection purposes we performed a fine mapping of the SSC7 skatole QTL region. RESULTS: A dense set of markers on SSC7 was obtained by whole genome re-sequencing of 24 Norwegian Landrace and 23 Duroc boars. Subsets of 126 and 157 SNPs were used for association analyses in Landrace and Duroc, respectively. Significant single markers associated with skatole spanned a large 4.4 Mb region from 75.9-80.3 Mb in Landrace, with the highest test scores found in a region between the genes NOVA1 and TGM1 (p < 0.001). The same QTL was obtained in Duroc and, although less significant, with associated SNPs spanning a 1.2 Mb region from 78.9-80.1 Mb (p < 0.01). The highest test scores in Duroc were found in genes of the granzyme family (GZMB and GZMH-like) and STXBP6. Haplotypes associated with levels of skatole were identified in Landrace but not in Duroc, and a haplotype block was found to explain 2.3% of the phenotypic variation for skatole. The SNPs in this region were not associated with levels of sex steroids. CONCLUSIONS: Fine mapping of a QTL for skatole on SSC7 confirmed associations of this region with skatole levels in pigs. The QTL region was narrowed down to 4.4 Mb in Landrace and haplotypes explaining 2.3% of the phenotypic variance for skatole levels were identified. Results confirmed that sex steroids are not affected by this QTL region, making these markers attractive for selection against boar taint. PMID- 29020942 TI - Peripherally inserted central catheter-related bloodstream infection due to Tsukamurella pulmonis: a case report and literature review. AB - BACKGROUND: Tsukamurella pulmonis is an aerobic gram-positive and rod-shaped organism that causes central catheter-related bloodstream infections in immunocompromised hosts. However, peripherally inserted central catheter (PICC) related bloodstream infections due to this organism have not been reported. CASE PRESENTATION: We describe a case of a 48-year-old man with acquired immunodeficiency syndrome and diffuse large B cell lymphoma who received five courses of chemotherapy including rituximab , cyclophosphamide , doxorubicin hydrochloride , vincristine , and prednisone via a PICC. Five days after the last chemotherapy course, he presented with a high fever and shaking chills. His absolute neutrophil count was 4200/MUL. Cultures obtained from blood and PICC culture revealed T. pulmonis. The colony count of T. pulmonis grown from PICC culture was 103 colony-forming units. Therefore, he was diagnosed with T. pulmonis bacteremia resulting from PICC-related bloodstream infection. The patient's condition improved and he became afebrile within 48 h after intravenous administration of cefozopran hydrochloride, which is a fourth generation cephalosporin. CONCLUSIONS: PICCs can be associated with T. pulmonis bacteremia, and fourth generation cephalosporins may be effective treatment. PMID- 29020943 TI - Rational use of Xpert testing in patients with presumptive TB: clinicians should be encouraged to use the test-treat threshold. AB - BACKGROUND: A recently published Ugandan study on tuberculosis (TB) diagnosis in HIV-positive patients with presumptive smear-negative TB, which showed that out of 90 patients who started TB treatment, 20% (18/90) had a positive Xpert MTB/RIF (Xpert) test, 24% (22/90) had a negative Xpert test, and 56% (50/90) were started without Xpert testing. Although Xpert testing was available, clinicians did not use it systematically. Here we aim to show more objectively the process of clinical decision-making. First, we estimated that pre-test probability of TB, or the prevalence of TB in smear-negative HIV infected patients with signs of presumptive TB in Uganda, was 17%. Second, we argue that the treatment threshold, the probability of disease at which the utility of treating and not treating is the same, and above which treatment should be started, should be determined. In Uganda, the treatment threshold was not yet formally established. In Rwanda, the calculated treatment threshold was 12%. Hence, one could argue that the threshold was reached without even considering additional tests. Still, Xpert testing can be useful when the probability of disease is above the treatment threshold, but only when a negative Xpert result can lower the probability of disease enough to cross the treatment threshold. This occurs when the pre-test probability is lower than the test-treat threshold, the probability of disease at which the utility of testing and the utility of treating without testing is the same. We estimated that the test-treatment threshold was 28%. Finally, to show the effect of the presence or absence of arguments on the probability of TB, we use confirming and excluding power, and a log10 odds scale to combine arguments. CONCLUSION: If the pre-test probability is above the test-treat threshold, empirical treatment is justified, because even a negative Xpert will not lower the post-test probability below the treatment threshold. However, Xpert testing for the diagnosis of TB should be performed in patients for whom the probability of TB was lower than the test-treat threshold. Especially in resource constrained settings clinicians should be encouraged to take clinical decisions and use scarce resources rationally. PMID- 29020944 TI - A convenient UHPLC-MS/MS method for routine monitoring of plasma and brain levels of nicotine and cotinine as a tool to validate newly developed preclinical smoking model in mouse. AB - BACKGROUND: A sensitive, rapid and selective UHPLC-MS/MS method has been developed and validated for the quantification of Nicotine (NT) and Cotinine (CN) using Continine-d 3 as internal standard (IS) as per FDA guidelines. Sample preparation involved simple protein precipitation of 20 uL mouse plasma or brain homogenate using acetonitrile at 1:8 ratio. Mass Spectrometer was operated in positive polarity under the multiple reaction-monitoring mode using electro spray ionization technique and the transitions of m/z 163.2 -> 132.1, 177.2 -> 98.0 and 180.2 -> 101.2 were used to measure the NT, CN and IS, respectively. The elution of NT, CN and IS are at 1.89, 1.77 and 1.76 min, respectively. This was achieved with a gradient mobile phase consisting of 5 mM ammonium bicarbonate, acetonitrile and methanol (3:1, v/v) at a flow rate of 0.3 mL/min on a Kinetex EVO C18 column. The method was validated with a lower limit of quantitation 3.0 ng/mL in mouse plasma and brain for both the analytes. RESULTS: A linear response function was established for the range of concentrations 3-200 (r > 0.995) for NT and 3-600 ng/mL (r > 0.995) for CN. The intra- and inter-day precision values met the acceptance criteria. NT and CN are stable in the battery of stability studies viz., stock solution, bench-top and auto-sampler. CONCLUSION: This method was successfully utilized to validate a newly developed preclinical smoking model in mice. PMID- 29020946 TI - The transcriptome of the developing grain: a resource for understanding seed development and the molecular control of the functional and nutritional properties of wheat. AB - BACKGROUND: Wheat is one of the three major cereals that have been domesticated to feed human populations. The composition of the wheat grain determines the functional properties of wheat including milling efficiency, bread making, and nutritional value. Transcriptome analysis of the developing wheat grain provides key insights into the molecular basis for grain development and quality. RESULTS: The transcriptome of 35 genotypes was analysed by RNA-Seq at two development stages (14 and 30 days-post-anthesis, dpa) corresponding to the mid stage of development (stage Z75) and the almost mature seed (stage Z85). At 14dpa, most of the transcripts were associated with the synthesis of the major seed components including storage proteins and starch. At 30dpa, a diverse range of genes were expressed at low levels with a predominance of genes associated with seed defence and stress tolerance. RNA-Seq analysis of changes in expression between 14dpa and 30dpa stages revealed 26,477 transcripts that were significantly differentially expressed at a FDR corrected p-value cut-off at <=0.01. Functional annotation and gene ontology mapping was performed and KEGG pathway mapping allowed grouping based upon biochemical linkages. This analysis demonstrated that photosynthesis associated with the pericarp was very active at 14dpa but had ceased by 30dpa. Recently reported genes for flour yield in milling and bread quality were found to influence wheat quality largely due to expression patterns at the earlier seed development stage. CONCLUSIONS: This study serves as a resource providing an overview of gene expression during wheat grain development at the early (14dpa) and late (30dpa) grain filling stages for use in studies of grain quality and nutritional value and in understanding seed biology. PMID- 29020945 TI - Dehydration induced transcriptomic responses in two Tibetan hulless barley (Hordeum vulgare var. nudum) accessions distinguished by drought tolerance. AB - BACKGROUND: The harsh environment on the Qinghai-Tibetan Plateau gives Tibetan hulless barley (Hordeum vulgare var. nudum) great ability to resist adversities such as drought, salinity, and low temperature, and makes it a good subject for the analysis of drought tolerance mechanism. To elucidate the specific gene networks and pathways that contribute to its drought tolerance, and for identifying new candidate genes for breeding purposes, we performed a transcriptomic analysis using two accessions of Tibetan hulless barley, namely Z772 (drought-tolerant) and Z013 (drought-sensitive). RESULTS: There were more up regulated genes of Z772 than Z013 under both mild (5439-VS-2604) and severe (7203 VS-3359) dehydration treatments. Under mild dehydration stress, the pathways exclusively enriched in drought-tolerance genotype Z772 included Protein processing in endoplasmic reticulum, tricarboxylic acid (TCA) cycle, Wax biosynthesis, and Spliceosome. Under severe dehydration stress, the pathways that were mainly enriched in Z772 included Carbon fixation in photosynthetic organisms, Pyruvate metabolism, Porphyrin and chlorophyll metabolism. The main differentially expressed genes (DEGs) in response to dehydration stress and genes whose expression was different between tolerant and sensitive genotypes were presented in this study, respectively. The candidate genes for drought tolerance were selected based on their expression patterns. CONCLUSIONS: The RNA-Seq data obtained in this study provided an initial overview on global gene expression patterns and networks that related to dehydration shock in Tibetan hulless barley. Furthermore, these data provided pathways and a targeted set of candidate genes that might be essential for deep analyzing the molecular mechanisms of plant tolerance to drought stress. PMID- 29020947 TI - Early adversity and psychiatric symptoms - a prospective study on Ethiopian mothers and their children. AB - BACKGROUND: Maternal exposure to adversity during the perinatal period has been associated with increased susceptibility for psychiatric symptoms in the offspring. The aim of this study was to investigate a possible developmental effect of maternal perinatal stressors on emotional and behavioural symptoms in the offspring in a developing country. METHODS: We followed an Ethiopian birth cohort (N = 358), assessing intimate partner violence (IPV) and maternal psychiatric symptoms during the perinatal period and at follow-up 10 years later, as a proxy for adversity, and maternal ratings on the Child Behavior Checklist (CBCL) 10 years later as the outcome. RESULTS: Among the women, exposure to IPV was common (60.6%) during the perinatal period and predicted IPV (29.9% of the mothers) at follow-up (rho = 0.132; p = 0.012). There was also an association between maternal psychiatric symptoms at the two time points (rho = 0.136; p = 0.010) and between maternal symptoms and IPV. Current maternal symptoms of anxiety and depression (beta = 0.057; p < 0.001), but not during the perinatal period, were associated with child CBCL-scores. CONCLUSION: Our findings do not support the hypothesis that early adversity increase susceptibility for psychiatric symptoms. However, the findings emphasize the public health problem of IPV in this population, adding to the women's mental health problem. PMID- 29020948 TI - Informed walks: whispering hints to gene hunters inside networks' jungle. AB - BACKGROUND: Systemic approaches offer a different point of view on the analysis of several types of molecular associations as well as on the identification of specific gene communities in several cancer types. However, due to lack of sufficient data needed to construct networks based on experimental evidence, statistical gene co-expression networks are widely used instead. Many efforts have been made to exploit the information hidden in these networks. However, these approaches still need to capitalize comprehensively the prior knowledge encrypted into molecular pathway associations and improve their efficiency regarding the discovery of both exclusive subnetworks as candidate biomarkers and conserved subnetworks that may uncover common origins of several cancer types. METHODS: In this study we present the development of the Informed Walks model based on random walks that incorporate information from molecular pathways to mine candidate genes and gene-gene links. The proposed model has been applied to TCGA (The Cancer Genome Atlas) datasets from seven different cancer types, exploring the reconstructed co-expression networks of the whole set of genes and driving to highlighted sub-networks for each cancer type. In the sequel, we elucidated the impact of each subnetwork on the indication of underlying exclusive and common molecular mechanisms as well as on the short-listing of drugs that have the potential to suppress the corresponding cancer type through a drug-repurposing pipeline. CONCLUSIONS: We have developed a method of gene subnetwork highlighting based on prior knowledge, capable to give fruitful insights regarding the underlying molecular mechanisms and valuable input to drug repurposing pipelines for a variety of cancer types. PMID- 29020950 TI - Differential gene expression in disease: a comparison between high-throughput studies and the literature. AB - BACKGROUND: Differential gene expression is important to understand the biological differences between healthy and diseased states. Two common sources of differential gene expression data are microarray studies and the biomedical literature. METHODS: With the aid of text mining and gene expression analysis we have examined the comparative properties of these two sources of differential gene expression data. RESULTS: The literature shows a preference for reporting genes associated to higher fold changes in microarray data, rather than genes that are simply significantly differentially expressed. Thus, the resemblance between the literature and microarray data increases when the fold-change threshold for microarray data is increased. Moreover, the literature has a reporting preference for differentially expressed genes that (1) are overexpressed rather than underexpressed; (2) are overexpressed in multiple diseases; and (3) are popular in the biomedical literature at large. Additionally, the degree to which diseases are similar depends on whether microarray data or the literature is used to compare them. Finally, vaguely qualified reports of differential expression magnitudes in the literature have only small correlation with microarray fold-change data. CONCLUSIONS: Reporting biases of differential gene expression in the literature can be affecting our appreciation of disease biology and of the degree of similarity that actually exists between different diseases. PMID- 29020949 TI - Modelling dynamic change of malaria transmission in holoendemic setting (Dielmo, Senegal) using longitudinal measures of antibody prevalence to Plasmodium falciparum crude schizonts extract. AB - BACKGROUND: Evaluation of local Plasmodium falciparum malaria transmission has been investigated previously using the reversible catalytic model based on prevalence of antibody responses to single antigen to estimate seroconversion rates. High correlations were observed between seroconversion rates and entomological inoculation rates (EIR). However, in this model, the effects of malaria control interventions and clinical episodes on serological measurements were not assessed. This study monitors the use of antibody responses to P. falciparum crude extracts for assessing malaria transmission, compares seroconversion rates estimated from longitudinal data to those derived from cross sectional surveys and investigates the effects of malaria control interventions on these measures in an area of declining malaria transmission. In addition, the validity of this model was evaluated by comparison with the alternative model. METHODS: Five cross-sectional surveys were carried out at the end of the wet season in Dielmo, a malaria-endemic Senegalese rural area in 2000, 2002, 2008, 2010 and 2012. Antibodies against schizonts crude extract of a local P. falciparum strain adapted to culture (Pf 07/03) were measured by ELISA. Age specific seroprevalence model was used both for cross-sectional surveys and longitudinal data (combined data of all surveys). RESULTS: A total of 1504 plasma samples obtained through several years follow-up of 350 subjects was used in this study. Seroconversion rates based on P. falciparum schizonts crude extract were estimated for each cross-sectional survey and were found strongly correlated with EIR. High variability between SCRs from cross-sectional and longitudinal surveys was observed. In longitudinal studies, the alternative catalytic reversible model adjusted better with serological data than the catalytic model. Clinical malaria attacks and malaria control interventions were found to have significant effect on seroconversion. DISCUSSION: The results of the study suggested that crude extract was a good serological tool that could be used to assess the level of malaria exposure in areas where malaria transmission is declining. However, additional parameters such as clinical malaria and malaria control interventions must be taken into account for determining serological measurements for more accuracy in transmission assessment. PMID- 29020951 TI - Paramedic literature search filters: optimised for clinicians and academics. AB - BACKGROUND: Search filters aid clinicians and academics to accurately locate literature. Despite this, there is no search filter or Medical Subject Headings (MeSH) term pertaining to paramedics. Therefore, the aim of this study was to create two filters to meet to different needs of paramedic clinicians and academics. METHODS: We created a gold standard from a reference set, which we measured against single terms and search filters. The words and phrases used stemmed from selective exclusion of terms from the previously published Prehospital Search Filter 2.0 as well as a Delphi session with an expert panel of paramedic researchers. Independent authors deemed articles paramedic-relevant or not following an agreed definition. We measured sensitivity, specificity, accuracy and number needed to read (NNR). RESULTS: We located 2102 articles of which 431 (20.5%) related to paramedics. The performance of single terms was on average of high specificity (97.1% (Standard Deviation 7.4%), but of poor sensitivity (12.0%, SD 18.7%). The NNR ranged from 1 to 8.6. The sensitivity maximising search filter yielded 98.4% sensitivity, with a specificity of 74.3% and a NNR of 2. The specificity-maximising filter achieved 88.3% in specificity, which only lowered the sensitivity to 94.7%, and thus a NNR of 1.48. CONCLUSIONS: We have created the first two paramedic specific search filters, one optimised for sensitivity and one optimised for specificity. The sensitivity-maximising search filter yielded 98.4% sensitivity, and a NNR of 2. The specificity maximising filter achieved 88.3% in specificity, which only lowered the sensitivity to 94.7%, and a NNR of 1.48. A paramedic MeSH term is needed. PMID- 29020952 TI - Toxoplasma gondii and Neospora caninum in farm-reared ostriches (Struthio camelus) in China. AB - BACKGROUND: The parasites Toxoplasma gondii (T. gondii) and Neospora caninum (N. caninum) are globally distributed; they infect warm-blooded animals, including many avian species. The aim of this study was to evaluate the presence of these parasites in ostriches from central China. In total, 402 ostrich (Struthio camelus) samples (293 hearts, 77 brains, and 32 serum) from slaughterhouses of the Henan Province and Hebei Province were collected. The heart juice (n = 283) and serum samples (n = 32) were tested for antibodies to T. gondii using the modified agglutination test (MAT). Hematoxylin and eosin (H&E) staining, immunohistochemical (IHC) staining, and the polymerase chain reaction were used to examine the cysts and DNA of T. gondii and N. caninum parasites, respectively. RESULTS: Antibodies to T. gondii were detected in 6.4% (20/315) (cut-off, 25). No cysts or DNA of T. gondii or N. caninum were observed in any of the 293 hearts and 77 brains. CONCLUSION: The results showed a low prevalence of T. gondii antibody in ostriches, compared to that in the other animals. N. caninum occurs at low to negligible frequencies in ostriches from China. This is the first report on screening ostriches in China for T. gondii antibodies. PMID- 29020953 TI - "Layers of translation" - evidence literacy in public health practice: a qualitative secondary analysis. AB - BACKGROUND: Strengthening public health systems has been a concern in Canada in the wake of public health emergencies. In one Canadian province, British Columbia, a high priority has been placed on the role of evidence to guide decision making; however, there are numerous challenges to using evidence in practice. The National Collaborating Centre for Methods and Tools therefore developed the Evidence Informed Public Health Framework (EIPH), a seven step guide to assist public health practitioners to use evidence in practice. We used this framework to examine the evidence literacy of public health practitioners in BC. METHODS: We conducted a secondary analysis of two separate qualitative studies on the public health renewal process in which the use and understanding of evidence were key interview questions. Using constant comparative analysis, we analyzed the evidence-related data, mapping it to the categories of the EIPH framework. RESULTS: Participants require both data and evidence for multiple purposes in their daily work; data may be more important to them than research evidence. They are keen to provide evidence-based programs in which research evidence is balanced with community knowledge and local data. Practitioners recognise appraisal as an important step in using evidence, but the type of evidence most often used in daily practice does not easily lend itself to established methods for appraising research evidence. In the synthesis stage of the EIPH process, synthesized evidence in the form of systematic reviews and practice guidelines is emphasized. Participants, however, need to synthesize across the multiple forms of evidence they use and see the need for more skill and resources to help them develop skill in this type of synthesis. CONCLUSIONS: Public health practitioners demonstrated a good level of evidence literacy, particularly at the collective level in the organization. The EIPH framework provides helpful guidance in how to use research evidence in practice, but it lacks support on appraising and synthesizing across the various types of evidence that practitioners consider essential in their practice. We can better support practitioners by appreciating the range of evidence they use and value and by creating tools that help them to do this. PMID- 29020954 TI - Correction to: Socioeconomic and demographic characterization of an endemic malaria region in Brazil by multiple correspondence analysis. AB - After publication of the article [1], it has been brought to our attention that the y-axis of Fig. 6 has been labeled incorrectly. It should read "linear predictor". This has now been corrected in the original article. PMID- 29020955 TI - Concomitant aorto-right subclavian artery bypass with off-pump coronary artery bypass grafting: a case report. AB - BACKGROUND: Atherosclerotic stenosis of the brachiocephalic artery sometimes occurs in patients with coronary artery disease, and can cause stroke during the perioperative period of coronary artery bypass grafting. CASE PRESENTATION: We describe the case of a 77-year old male with severe stenosis of the brachiocephalic artery and severe coronary artery disease. He successfully underwent aorto-right subclavian artery bypass that was performed concomitantly with off-pump coronary artery bypass. CONCLUSION: Concomitant aorto-subclavian artery bypass with off-pump coronary artery bypass grafting is a therapeutic option that minimizes the risk of perioperative stroke in patients with brachiocephalic artery stenosis and coronary artery disease. PMID- 29020956 TI - Guaiphenesin-ketamine-xylazine infusion to maintain anesthesia in mules undergoing field castration. AB - BACKGROUND: In order to determine whether a combination of guaiphenesin, ketamine and xylazine can induce safe and satisfactory anaesthesia in mules undergoing field castration, eight healthy adult intact male mules were employed. They were premedicated with intravenous (IV) xylazine (1.3 mg/kg); an additional dose of xylazine (0.3 mg/kg IV) was administered in case of inadequate depth of sedation. Anaesthesia was induced with IV thiopental (6 mg/kg). The quality of sedation and induction was recorded. Anaesthesia was maintained with an infusion of guaiphenesin (50 mg/mL), ketamine (2 mg/mL) and xylazine (1 mg/mL) (GKX). The spermatic cord of each testis was infiltrated with 5 mL of 2% lidocaine. During anaesthesia heart rate (HR), respiratory rate (RR), rectal temperature (RT) and haemoglobin oxygen saturation (SpO2) were measured every 5 min. The data were analysed with simple one-way analysis of variance (ANOVA). A P value < 0.05 was considered statistically significant. Time of anesthesia, time of surgery and time of recovery were recorded. RESULTS: Only one mule required an additional dose of xylazine to achieve a satisfactory depth of sedation. Thiopental at the dose of 6 mg/kg IV resulted in smooth induction and lateral recumbency in all animals. GKX provided adequate anaesthesia to perform castration in all mules. Muscle relaxation was deemed adequate and physiological variables remained stable and within references values during the anaesthesia and did not change in response to surgical stimulation. Time (mean +/- standard deviation) from the end of the infusion to sternal recumbency and time from sternal recumbency to standing were 27.7 +/- 4.6 and 30.1 +/- 7.7 min, respectively. CONCLUSIONS: The combination of xylazine, thiopental and GKX provides satisfactory short-term anaesthesia in mules undergoing field castration. PMID- 29020957 TI - Social disparities in the prevalence of diabetes in Australia and in the development of end stage renal disease due to diabetes for Aboriginal and Torres Strait Islanders in Australia and Maori and Pacific Islanders in New Zealand. AB - BACKGROUND: Disparities in health status occur between people with differing socioeconomic status and disadvantaged groups usually have the highest risk exposure and the worst health outcome. We sought to examine the social disparities in the population prevalence of diabetes and in the development of treated end stage renal disease due to type 1 diabetes which has not previously been studied in Australia and New Zealand in isolation from type 2 diabetes. METHODS: This observational study examined the population prevalence of diabetes in a sample of the Australian population (7,434,492) using data from the National Diabetes Services Scheme and of treated end stage renal disease due to diabetes using data from the Australian and New Zealand Dialysis and Transplant Registry. The data were then correlated with the Australian Bureau of Statistics Socioeconomic Indexes for Areas for an examination of socioeconomic disparities. RESULTS: There is a social gradient in the prevalence of diabetes in Australia with disease incidence decreasing incrementally with increasing affluence (Spearman's rho = .765 p < 0.001). There is a higher risk of developing end stage renal disease due to type 1 diabetes for males with low socioeconomic status (RR 1.20; CI 1.002-1.459) in comparison to females with low socioeconomic status. In Australia and New Zealand Aboriginal and Torres Strait Islanders, Maori and Pacific Islanders appear to have a low risk of end stage renal disease due to type 1 diabetes but continue to carry a vastly disproportionate burden of end stage renal disease due to type 2 diabetes (RR 6.57 CI 6.04-7.14 & 6.48 CI 6.02 6.97 respectively p < 0.001) in comparison to other Australian and New Zealanders. CONCLUSION: Whilst low socioeconomic status is associated with a higher prevalence of diabetes the inverse social gradient seen in this study has not previously been reported. The social disparity seen in relation to treated end stage renal disease due to type 2 diabetes for Aboriginal and Torres Strait Islanders, Maori and Pacific Islanders has changed very little in the past 20 years. Addressing the increasing incidence of diabetes in Australia requires consideration of the underlying social determinants of health. PMID- 29020958 TI - Does replacing sedentary behaviour with light or moderate to vigorous physical activity modulate inflammatory status in adults? AB - BACKGROUND: Sedentary behaviour, obesity and insulin resistance are associated with pro-inflammatory status. Limited data on whether physical activity modulates inflammatory status and counteracts obesity and insulin resistance associated low grade inflammation exist. Our objective was to investigate associations between objectively measured physical activity and inflammatory status, and specifically whether substituting daily sedentary behaviour with light activity or moderate to vigorous physical activity (MVPA), is associated with beneficial alterations to the inflammatory profile among middle-aged adults and those at increased cardiometabolic risk (obese and insulin resistant subjects). METHODS: Data are from a sub-sample of the Mitchelstown cohort; a population-based cross-sectional sample of 2047 Irish adults. Physical activity intensity and duration were measured in 396 participants for 7-consecutive days using the GENEActiv accelerometer. Isotemporal regression analysis examined the associations between replacing 30 min per day of sedentary behaviour with equal amounts of light activity and MVPA on inflammatory factors (serum acute-phase reactants, adipocytokines, pro-inflammatory cytokines and white blood cells (WBC)). RESULTS: Reallocating 30 min of sedentary time with MVPA was associated with a more favourable inflammatory profile characterized by higher adiponectin and lower complement component C3 (C3), leptin, interleukin 6 (IL-6) and WBC concentrations (P < 0.05). No significant effects were noted with substitution of sedentary time with light activity. Among the obese subjects replacing sedentary behaviour with an equivalent amount of MVPA was associated with lower WBC counts (P < 0.05); no associations were detected among the insulin resistant (HOMA-IR >75th percentile) subjects. Among the non-obese and non-insulin resistant subjects substituting 30 min of sedentary behaviour with MVPA was associated with decreased C3, IL-6 and WBC concentrations. CONCLUSIONS: Replacing sedentary behaviour with MVPA modulates pro-inflammatory status. These findings, which highlight the need for the developing randomized trials aimed at lowering cardiometabolic risk, warrant further investigation. PMID- 29020959 TI - Configurable, wearable sensing and vibrotactile feedback system for real-time postural balance and gait training: proof-of-concept. AB - BACKGROUND: Postural balance and gait training is important for treating persons with functional impairments, however current systems are generally not portable and are unable to train different types of movements. METHODS: This paper describes a proof-of-concept design of a configurable, wearable sensing and feedback system for real-time postural balance and gait training targeted for home-based treatments and other portable usage. Sensing and vibrotactile feedback are performed via eight distributed, wireless nodes or "Dots" (size: 22.5 * 20.5 * 15.0 mm, weight: 12.0 g) that can each be configured for sensing and/or feedback according to movement training requirements. In the first experiment, four healthy older adults were trained to reduce medial-lateral (M/L) trunk tilt while performing balance exercises. When trunk tilt deviated too far from vertical (estimated via a sensing Dot on the lower spine), vibrotactile feedback (via feedback Dots placed on the left and right sides of the lower torso) cued participants to move away from the vibration and back toward the vertical no feedback zone to correct their posture. A second experiment was conducted with the same wearable system to train six healthy older adults to alter their foot progression angle in real-time by internally or externally rotating their feet while walking. Foot progression angle was estimated via a sensing Dot adhered to the dorsal side of the foot, and vibrotactile feedback was provided via feedback Dots placed on the medial and lateral sides of the mid-shank cued participants to internally or externally rotate their foot away from vibration. RESULTS: In the first experiment, the wearable system enabled participants to significantly reduce trunk tilt and increase the amount of time inside the no feedback zone. In the second experiment, all participants were able to adopt new gait patterns of internal and external foot rotation within two minutes of real-time training with the wearable system. CONCLUSION: These results suggest that the configurable, wearable sensing and feedback system is portable and effective for different types of real-time human movement training and thus may be suitable for home based or clinic-based rehabilitation applications. PMID- 29020960 TI - Perspectives in immunotherapy: meeting report from the "Immunotherapy Bridge", Napoli, November 30th 2016. AB - The complex interactions between the immune system and tumors lead the identification of key molecules that govern these interactions: immunotherapeutics were designed to overcome the mechanisms broken by tumors to evade immune destruction. After the substantial advances in melanoma, immunotherapy currently includes many other type of cancers, but the melanoma lesson is essential to progress in other type of cancers, since immunotherapy is potentially improving clinical outcome in various solid and haematologic malignancies. Monotherapy in pre-treated NSCLC is studied and the use of nivolumab, pembrolizumab and atezolizumab as second-line of advanced NSCLC is demonstrated as well as first line monotherapy and combination therapy in metastatic NSCLC studied. Patients with HNSCC have immunotherapeutic promises as well: the FDA recently approved moAbs targeting immune checkpoint receptors. Nivolumab in combination with ipilumumab showed acceptable safety and encouraging antitumor activity in metastatic renal carcinoma. HCCs have significant amounts of genomic heterogeneity and multiple oncogenic pathways can be activated: the best therapeutic targets identification is ongoing. The treatment of advanced/relapsed EOC remain clearly an unmet need: a better understanding of the relevant immuno-oncologic pathways and their corresponding biomarkers are required. UC is an immunotherapy-responsive disease: after atezolizumab, three other PD-L1/PD-L1 inhibitors (nivolumab, durvalumab, and avelumab) were approved for treatment of platinum-refractory metastatic urothelial carcinoma. Anti-PD 1/PD-L1 monotherapy is associated with a modest response rate in metastatic breast cancer; the addition of chemotherapy is associated with higher response rates. Immunotherapy safety profile is advantageous, although, in contrast to conventional chemotherapy: boosting the immune system leads to a unique constellation of inflammatory toxicities known as immune-related Adverse Events (irAEs) that may warrant the discontinuation of therapy and/or the administration of immunosuppressive agents. Research should explore better combination with less side effects, the right duration of treatments, combination or sequencing treatments with target therapies. At present, treatment decision is based on patient's characteristics. PMID- 29020962 TI - Manipulation under anesthesia versus physiotherapy treatment in stage two of a frozen shoulder: a study protocol for a randomized controlled trial. AB - BACKGROUND: There is no consensus about the optimal treatment strategy for frozen shoulders (FS). Conservative treatment consisting of intra-articular corticosteroid infiltrations and physiotherapy are considered appropriate for most patients. However, with a conservative strategy, patients experience a prolonged rehabilitation period with a considerable amount of pain and disabilities in daily life. Also, at long term, a residual amount of pain and restriction of range of motion is frequently reported. Manipulation under anesthesia is a short and relative simple procedure with the potential to rapidly reduce symptoms and restore the range of motion. The objective of this trial is to evaluate the effectiveness of MUA followed by a PT program compared to a PT program alone, in the treatment of patients with a stage two FS. We hypothesize that the course of the disease can be shortened with MUA with a quicker functional recovery. METHODS: This is a prospective, single center, randomized controlled trial. Eligible patients will be allocated to either the manipulation (MUA) group or the physiotherapy alone (PT) group. In the MUA group manipulation will be performed under interscalene block, directly followed by an intensive physiotherapy treatment protocol, with the goal to maintain the obtained range of motion. Patients allocated to the PT group are given advice and education and receive a written protocol to hand out to their physical therapist based on the recent guideline of the Dutch Shoulder Network for the treatment of frozen shoulders. Descriptive statistics will be used to describe the sample size, patients demographics, presence of diabetes mellitus, range of motion, duration of symptoms till randomization and will be presented for each treatment group. The SPADI is used as primary functional outcome parameter. Secondary outcome parameters are; OSS, NPRS, EQ-5D 3-L, passive range of motion, WORQ-UP, duration of symptoms, usage of analgesics and adverse events. A sample size of 41 subjects in each group was calculated. Follow up is planned after 1,3 and 12 months. The length of physiotherapy treatment in both groups is variable, depending on individual progression. Differences between groups in outcome parameters will be analysed using the linear mixed modelling and the restricted maximum likelihood ratio technique for estimating the model parameters. DISCUSSION: Successful completion of this trial will provide evidence on the best treatment strategy for patients with a stage two frozen shoulder. The results of this study can lead to a better understanding for the role of manipulation in the treatment of frozen shoulders. TRIAL REGISTRATION: This trial is registered in the Dutch Trial Register under the number NTR6182 on the 20th of February 2017. PMID- 29020961 TI - Hazardous waste and health impact: a systematic review of the scientific literature. AB - : Waste is part of the agenda of the European Environment and Health Process and included among the topics of the Sixth Ministerial Conference on Environment and Health. Disposal and management of hazardous waste are worldwide challenges. We performed a systematic review to evaluate the evidence of the health impact of hazardous waste exposure, applying transparent and a priori defined methods. The following five steps, based on pre-defined systematic criteria, were applied. 1. Specify the research question, in terms of "Population-Exposure-Comparators Outcomes" (PECO). POPULATION: people living near hazardous waste sites; Exposure: exposure to hazardous waste; Comparators: all comparators; Outcomes: all diseases/health disorders. 2. Carry out the literature search, in Medline and EMBASE. 3. Select studies for inclusion: original epidemiological studies, published between 1999 and 2015, on populations residentially exposed to hazardous waste. 4. Assess the quality of selected studies, taking into account study design, exposure and outcome assessment, confounding control. 5. Rate the confidence in the body of evidence for each outcome taking into account the reliability of each study, the strength of the association and concordance of results.Fifty-seven papers of epidemiological investigations on the health status of populations living near hazardous waste sites were selected for the evidence evaluation. The association between 95 health outcomes (diseases and disorders) and residential exposure to hazardous waste sites was evaluated. Health effects of residential hazardous waste exposure, previously partially unrecognized, were highlighted. Sufficient evidence was found of association between exposure to oil industry waste that releases high concentrations of hydrogen sulphide and acute symptoms. The evidence of causal relationship with hazardous waste was defined as limited for: liver, bladder, breast and testis cancers, non-Hodgkin lymphoma, asthma, congenital anomalies overall and anomalies of the neural tube, urogenital, connective and musculoskeletal systems, low birth weight and pre-term birth; evidence was defined as inadequate for the other health outcomes. The results, although not conclusive, provide indications that more effective public health policies on hazardous waste management are urgently needed. International, national and local authorities should oppose and eliminate poor, outdated and illegal practices of waste disposal, including illegal transboundary trade, and increase support regulation and its enforcement. PMID- 29020963 TI - Relation of four nontraditional lipid profiles to diabetes in rural Chinese H type hypertension population. AB - BACKGROUND: Mounting evidence suggested that nontraditional lipid profiles have been recognized as a reliable indicator for unfavorable cardiovascular events. The purpose of this study was to explore the role of nontraditional lipid profiles as potential clinical indices for the assessment of prevalent diabetes in rural Chinese H-type hypertension population. METHODS: During 2012 to 2013, we conducted a large cross-sectional study of 2944 H-type hypertension participants (>=35 years of age) from rural areas in northeast China. Subjects underwent accurate assessment of lipid profiles, fasting plasma glucose (FPG), homocysteine (Hcy) according to standard protocols. RESULTS: The proportion of diabetes showed a graded and linear increase across the quartiles for all four nontraditional lipid parameters. Nontraditional lipid variables were independent determinants of FPG, and its correlation for TG/HDL-C was strongest, whether potential confounders were adjusted or not. Multivariable logistic regression analysis established that the highest triglycerides (TG)/ high-density lipoprotein cholesterol (HDL-C) quartile manifested the largest ORs of prevalent diabetes (OR: 3.275, 95%CI: 2.109-5.087) compared with the lowest quartile. The fully adjusted ORs (95%CI) were 2.753 (1.783-4.252), 2.178 (1.415-2.351), 1.648 (1.097 2.478) for the top quartile of total cholesterol (TC)/HDL-C, low-density lipoprotein cholesterol (LDL-C)/HDL-C, and non-high-density lipoprotein cholesterol (non-HDL-C), respectively. On the basis of the area under receiver operating characteristic curve (AUC), TG/HDL-C showed the optimal discriminating power for diabetes (AUC: 0.684, 95% CI: 0.650-0.718). CONCLUSIONS: Nontraditional lipid profiles (TG/HDL-C, TC/HDL-C, LDL-C/HDL-C and non-HDL-C) were all consistently and independently correlated with prevalent diabetes among the H type hypertension population in rural China. TG/HDL-C was prone to be more profitable in assessing the risk of prevalent diabetes and should be encouraged as an effective clinical tool for monitoring and targeted intervention of diabetes in H-type hypertension adults. PMID- 29020965 TI - Epidemiological link of a major cholera outbreak in Greater Accra region of Ghana, 2014. AB - BACKGROUND: Cholera remains an important public health challenge globally. Several pandemics have occurred in different parts of the world and have been epidemiologically linked by different researchers to illustrate how the cases were spread and how they were related to index cases. Even though the risk factors associated with the 2014 cholera outbreak were investigated extensively, the link between index cases and the source of infection was not investigated to help break the transmission process. This study sought to show how the index cases from various districts of the Greater Accra Region may have been linked. METHODS: We carried out a descriptive cross sectional study to investigate the epidemiological link of the 2014 cholera outbreak in the Greater Accra region of Ghana. An extensive review of all district records on cholera cases in the Greater Accra region was carried out. Index cases were identified with the help of line lists. Univariate analyses were expressed as frequency distributions, percentages, mean +/- Standard Deviation, and rates (attack rates, case-fatality rates etc.) as appropriate. Maps were drawn using Arc GIS and Epi info software to describe the pattern of transmission. RESULTS: Up to 20,199 cholera cases were recorded. Sixty percent of the cases were between 20 and 40 years and about 58% (11,694) of the total cases were males. Almost 50% of the cases occurred in the Accra Metro district. Two-thirds of the index cases ate food prepared outside their home and had visited the Accra Metropolis. CONCLUSIONS: The 2014 cholera outbreak can be described as a propagated source outbreak linked to the Accra Metropolis. The link between index cases and the source of infection, if investigated earlier could have helped break the transmission process. Such investigations also inform decision-making about the appropriate interventions to be instituted to prevent subsequent outbreaks. PMID- 29020964 TI - IL-27 mediates HLA class I up-regulation, which can be inhibited by the IL-6 pathway, in HLA-deficient Small Cell Lung Cancer cells. AB - BACKGROUND: Recently, immunotherapy with anti-PD-1 antibodies has shown clinical benefit in recurrent Small Cell Lung Cancer (SCLC). Since anti-PD-1 re-activates anti-tumor Cytotoxic T Lymphocyte (CTL) responses, it is crucial to understand the mechanisms regulating HLA class I, and PD-L1 expression in HLA-negative SCLC. Here we addressed the role of IL-27, a cytokine related to both IL-6 and IL-12 families. METHODS: The human SCLC cell lines NCI-N592, -H69, -H146, -H446 and H82 were treated in vitro with different cytokines (IL-27, IFN-gamma, IL-6 or a soluble IL-6R/IL-6 chimera [sIL-6R/IL-6]) at different time points and analyzed for tyrosine-phosphorylated STAT proteins by Western blot, for surface molecule expression by immunofluorescence and FACS analyses or for specific mRNA expression by QRT-PCR. Relative quantification of mRNAs was calculated by the DeltaDeltaCT method. The Student's T test was used for the statistical analysis of experimental replicates. RESULTS: IL-27 triggered STAT1/3 phosphorylation and up-regulated the expression of surface HLA class I antigen and of TAP1 and TAP2 mRNA in four out of five SCLC cell lines tested. The IL-27-resistant NCI-H146 cells showed up-regulation of HLA class I by IFN-gamma. IFN-gamma also induced expression of PD-L1 in SCLC cells, while IL-27 was less potent in this respect. IL-27 failed to activate STAT1/3 phosphorylation in NCI-H146 cells, which display a low expression of the IL-27RA and GP130 receptor chains. As GP130 is shared in IL-27R and IL-6R complexes, we assessed its functionality in response to sIL 6R/IL-6. sIL-6R/IL-6 failed to trigger STAT1/3 signaling in NCI-H146 cells, suggesting low GP130 expression or uncoupling from signal transduction. Although both sIL-6R/IL-6 and IL-27 triggered STAT1/3 phosphorylation, sIL-6R/IL-6 failed to up-regulate HLA class I expression, in relationship to the weak activation of STAT1. Finally sIL-6R/IL-6 limited IL-27-effects, particularly in NCI-H69 cells, in a SOCS3-independent manner, but did not modify IFN-gamma induced HLA class I up-regulation. CONCLUSIONS: In conclusion, IL-27 is a potentially interesting cytokine for restoring HLA class I expression for SCLC combined immunotherapy purposes. However, the concomitant activation of the IL-6 pathway may limit the IL-27 effect on HLA class I induction but did not significantly alter the responsiveness to IFN-gamma. PMID- 29020966 TI - Methods used in prevalence studies of disrespect and abuse during facility based childbirth: lessons learned. AB - BACKGROUND: Several recent studies have attempted to measure the prevalence of disrespect and abuse (D&A) of women during childbirth in health facilities. Variations in reported prevalence may be associated with differences in study instruments and data collection methods. This systematic review and comparative analysis of methods aims to aggregate and present lessons learned from published studies that quantified the prevalence of Disrespect and Abuse (D&A) during childbirth. METHODS: We conducted a systematic review of the literature in accordance with PRISMA (Preferred Reporting Items for Systematic Review and Meta Analysis) guidelines. Five papers met criteria and were included for analysis. We developed an analytical framework depicting the basic elements of epidemiological methodology in prevalence studies and a table of common types of systematic error associated with each of them. We performed a head-to-head comparison of study methods for all five papers. Using these tools, an independent reviewer provided an analysis of the potential for systematic error in the reported prevalence estimates. RESULTS: Sampling techniques, eligibility criteria, categories of D&A selected for study, operational definitions of D&A, summary measures of D&A, and the mode, timing, and setting of data collection all varied in the five studies included in the review. These variations present opportunities for the introduction of biases - in particular selection, courtesy, and recall bias - and challenge the ability to draw comparisons across the studies' results. CONCLUSION: Our review underscores the need for caution in interpreting or comparing previously reported prevalence estimates of D&A during facility-based childbirth. The lack of standardized definitions, instruments, and study methods used to date in studies designed to quantify D&A in childbirth facilities introduced the potential for systematic error in reported prevalence estimates, and affected their generalizability and comparability. Chief among the lessons to emerge from comparing methods for measuring the prevalence of D&A is recognition of the tension between seeking prevalence measures that are reliable and generalizable, and attempting to avoid loss of validity in the context where the issue is being studied. PMID- 29020967 TI - An updated meta-analysis of the asporin gene D-repeat in knee osteoarthritis: effects of gender and ethnicity. AB - BACKGROUND: Knee osteoarthritis (KOA) is the most prevalent form of knee joint disease and characterized by the progressive degeneration of articular cartilage. Although pathology of KOA remains unknown, genetic factors are considered to be the major cause. Asporin is a group of biologically active components of extracellular matrix (ECM) in articular cartilage, and asporin gene (ASPN) D repeat polymorphism was reported to be associated with KOA. Thus, our meta analysis is aimed at investigation of the association between asporin D-repeat polymorphism and susceptibility of KOA. METHODS: We gathered data from MEDLINE, Embase, OVID, and ScienceDirect to search relevant published epidemiological studies through April 2017. Compared with previous studies, our meta-analysis is the first study to investigate the association of ASPN D15, D16, and D17 alleles and KOA susceptibility by ethnic- and sex-stratified subgroup analysis. RESULTS: We found no significant association between D15 allele and susceptibility to KOA (OR = 1.05, 95% CI 0.95-1.17) in overall population. The same results were observed in the analysis of D16 (OR = 1.01, 95% CI 0.80-1.28) and D17 alleles (OR = 1.28, 95% CI 0.91-1.80). The ethnic- and sex-subgroup analyses did not alter the ORs. However, significant association was detected in the sensitivity analysis of D17 in overall population (OR = 1.05, 95% CI 0.95-1.17) and Asian population (OR = 1.78, 95% CI 1.02-3.11, P < 0.05). CONCLUSION: Our results indicated that D-repeat polymorphism of ASPN may not play a major role in susceptibility of KOA in ethnic- and sex-specific analysis. Because of the limitations of the present meta-analysis, firm conclusions could not be drawn based on the current evidence, and further studies are required to detect genuine role of ASPN. PMID- 29020968 TI - Robot-assisted assessment of muscle strength. AB - Impairment of neuromuscular function in neurological disorders leads to reductions in muscle force, which may lower quality of life. Rehabilitation robots that are equipped with sensors are able to quantify the extent of muscle force impairment and to monitor a patient during the process of neurorehabilitation with sensitive and objective assessment methods. In this article, we provide an overview of fundamental aspects of muscle function and how the corresponding variables can be quantified by means of meaningful robotic assessments that are primarily oriented towards upper limb neurorehabilitation. We discuss new concepts for the assessment of muscle function, and present an overview of the currently available systems for upper limb measurements. These considerations culminate in practical recommendations and caveats for the rational quantification of force magnitude, force direction, moment of a force, impulse, critical force (neuromuscular fatigue threshold) and state and trait levels of fatigue. PMID- 29020969 TI - Updates on cardiovascular outcome trials in diabetes. AB - In 2008 the Food and Drug Administration introduced a guidance for industry that requires the investigation of cardiovascular outcomes of glucose-lowering medications. Since then, an increasing number of cardiovascular outcome trials have been completed in diabetes patients with high cardiovascular risk for members of the SGLT-2 and DPP4 inhibitors and GLP-1 receptor agonist classes. The trials confirmed cardiovascular safety for all tested anti-hyperglycaemic drugs and, in addition empagliflozin, semaglutide and liraglutide could even reduce cardiovascular risk. The present review summarizes the results of the DEVOTE, CANVAS, EXSCEL and ACE trials that tested cardiovascular safety of Insulin degludec, canagliflozin, once-weekly exenatide and acarbose and were published in 2017. We provide context on these results by comparing them with earlier trials of glucose-lowering drugs and give an outlook on what to expect in coming years. PMID- 29020970 TI - Informing new or improved vector control tools for reducing the malaria burden in Tanzania: a qualitative exploration of perceptions of mosquitoes and methods for their control among the residents of Dar es Salaam. AB - BACKGROUND: The effectiveness of malaria prevention with long-lasting insecticidal nets and indoor residual spraying is limited by emerging insecticide resistance, evasive mosquito behaviours that include outdoor biting, sub-optimal implementation and inappropriate use. New vector control interventions are required and their potential effectiveness will be enhanced if existing household perceptions and practices are integrated into intervention design. METHODS: This qualitative descriptive study used focus groups discussions, in-depth interviews and photovoice methods to explore mosquito control perceptions and practices among residents in four study sites in Dar es Salaam, Tanzania. RESULTS: Mosquitoes were perceived as a growing problem, directly attributed to widespread environmental deterioration and lack of effective mosquito control interventions. Malaria and nuisance biting were perceived as the main problem caused by mosquitoes. Breeding sites were clearly distinguished from resting sites but residents did not differentiate between habitats producing malaria vector mosquitoes and others producing mostly nuisance mosquitoes. The most frequently mentioned protection methods in the wealthiest locations were bed nets, aerosol insecticide sprays, window screens, and fumigation, while bed nets were most frequently mentioned and described as 'part of the culture' in the least wealthy locations. Mosquito-proofed housing was consistently viewed as desirable, but considered unaffordable outside wealthiest locations. Slapping and covering up with clothing were most commonly used to prevent biting outdoors. Despite their utility outdoors, topical repellents applied to the skin were considered expensive, and viewed with suspicion due to perceived side effects. Improving the local environment was the preferred method for preventing outdoor biting. Affordability, effectiveness, availability, practicality, as well as social influences, such as government recommendations, socialization and internalization (familiarization and habit) were described as key factors influencing uptake. CONCLUSIONS: Outdoor transmission is widely accepted as an obstacle to malaria elimination. Larval source management, targeting both malaria vectors and nuisance-biting mosquitoes, is the preferred method for mosquito control among the residents of Dar es Salaam and should be prioritized for development alongside new methods for outdoor personal protection. Even if made available, effective and affordable, these additional interventions may require time and user experience to achieve positive reputations and trustworthiness. PMID- 29020971 TI - Efficacy and safety of turmeric and curcumin in lowering blood lipid levels in patients with cardiovascular risk factors: a meta-analysis of randomized controlled trials. AB - BACKGROUND: Dyslipidemia is an important and common cardiovascular risk factor in the general population. The lipid-lowering effects of turmeric and curcumin are unconfirmed. We performed a meta-analysis to assess the efficacy and safety of turmeric and curcumin in lowering blood lipids in patients at risk of cardiovascular disease (CVD). METHODS: A comprehensive literature search was conducted on PubMed, Embase, Ovid, Medline and Cochrane Library databases to identify randomized controlled trials (published as of November 2016) that assessed the effect of turmeric and curcumin on blood lipid levels including total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG). Pooled standardized mean difference (SMD) with 95% confidence interval (CI) was used to assess the effect. RESULTS: The analysis included 7 eligible studies (649 patients). Turmeric and curcumin significantly reduced serum LDL-C (SMD = -0.340, 95% confidence interval [CI]: -0.530 to -0.150, P < 0.0001) and TG (SMD = -0.214, 95% CI: -0.369 to 0.059, P = 0.007) levels as compared to those in the control group. These may be effective in lowering serum TC levels in patients with metabolic syndrome (MetS, SMD = -0.934, 95% CI: -1.289 to -0.579, P < 0.0001), and turmeric extract could possibly have a greater effect on reducing serum TC levels (SMD = -0.584, 95% CI: -0.980 to -0.188, P = 0.004); however, the efficacy is yet to be confirmed. Serum HDL-C levels were not obviously improved. Turmeric and curcumin appeared safe, and no serious adverse events were reported in any of the included studies. CONCLUSIONS: Turmeric and curcumin may protect patients at risk of CVD through improving serum lipid levels. Curcumin may be used as a well-tolerated dietary adjunct to conventional drugs. Further research is required to resolve uncertainties related to dosage form, dose and medication frequency of curcumin. PMID- 29020974 TI - Interventions to reduce dependency in bathing in community dwelling older adults: a systematic review. AB - BACKGROUND: The onset of bathing disability for older adults has been found to be an indicator and potential precursor of further disability. Thus interventions targeting bathing may prevent or delay further disability and the use of health and social care services. The aim of this systematic review was to identify interventions targeted at reducing dependency in bathing for community dwelling older adults, and determine their content and effectiveness in maintaining or improving function and quality of life. METHODS: We conducted a systematic search of electronic databases including: The Cochrane Central Register of Controlled Trials (CENTRAL); MEDLINE; EMBASE; AMED; CINAHL; PsycINFO and OTSeeker. The search took place on 18 October 2016. We included randomised controlled trials, nonrandomised controlled trials, and controlled before and after studies that evaluated an intervention designed to reduce dependency in bathing. Articles were screened for inclusion by two independent reviewers; risk of bias was assessed using quality assessment tools; and data extracted using pre-prepared forms. Disagreements were resolved by discussion and inclusion of a third reviewer. RESULTS: The search process identified one study for inclusion in the review. This study evaluated a bathing intervention delivered by an occupational therapist following discharge from hospital. Overall, the findings suggest modest improvements in functional ability in favour of the intervention group although the results should be interpreted with caution. CONCLUSION: Despite evidence suggesting the importance of addressing bathing difficulties as a means of possible prevention of disability in the ageing process, there is a dearth of evaluative or interventional research studies. Further robust research is warranted, including studies of randomised and controlled design. PMID- 29020972 TI - SUMO1 modification of KHSRP regulates tumorigenesis by preventing the TL-G-Rich miRNA biogenesis. AB - BACKGROUND: MicroRNAs (miRNAs) are important regulators involved in diverse physiological and pathological processes including cancer. SUMO (small ubiquitin like modifier) is a reversible protein modifier. We recently found that SUMOylation of TARBP2 and DGCR8 is involved in the regulation of the miRNA pathway. KHSRP is a single stranded nucleic acid binding protein with roles in transcription and mRNA decay, and it is also a component of the Drosha-DGCR8 complex promoting the miRNA biogenesis. METHODS: The in vivo SUMOylation assay using the Ni2+-NTA affinity pulldown or immunoprecipitation (IP) and the in vitro E.coli-based SUMOylation assay were used to analyze SUMOylation of KHSRP. Nuclear/Cytosol fractionation assay and immunofluorescent staining were used to observe the localization of KHSRP. High-throughput miRNA sequencing, quantantive RT-PCR and RNA immunoprecipitation assay (RIP) were employed to determine the effects of KHSRP SUMO1 modification on the miRNA biogenesis. The soft-agar colony formation, migration, vasculogenic mimicry (VM) and three-dimensional (3D) cell culture assays were performed to detect the phenotypes of tumor cells in vitro, and the xenograft tumor model in mice was conducted to verify that SUMO1 modification of KHSRP regulated tumorigenesis in vivo. RESULTS: KHSRP is modified by SUMO1 at the major site K87, and this modification can be increased upon the microenvironmental hypoxia while reduced by the treatment with growth factors. SUMO1 modification of KHSRP inhibits its interaction with the pri-miRNA/Drosha DGCR8 complex and probably increases its translocation from the nucleus to the cytoplasm. Consequently, SUMO1 modification of KHSRP impairs the processing step of pre-miRNAs from pri-miRNAs which especially harbor short G-rich stretches in their terminal loops (TL), resulting in the downregulation of a subset of TL-G Rich miRNAs such as let-7 family and consequential tumorigenesis. CONCLUSIONS: Our data demonstrate how the miRNA biogenesis pathway is connected to tumorigenesis and cancer progression through the reversible SUMO1 modification of KHSRP. PMID- 29020973 TI - The alpha-melanocyte stimulating hormone/peroxisome proliferator activated receptor-gamma pathway down-regulates proliferation in melanoma cell lines. AB - BACKGROUND: The alpha-Melanocyte Stimulating Hormone (alphaMSH)/Melanocortin-1 receptor (MC1R) interaction promotes melanogenesis through the cAMP/PKA pathway. The direct induction of this pathway by Forskolin (FSK) is also known to enhance melanocyte proliferation. alphaMSH acts as a mitogenic agent in melanocytes and its effect on proliferation of melanoma cells is less known. We previously identified the alphaMSH/Peroxisome Proliferator Activated Receptor (PPARgamma) pathway as a new pathway on the B16-F10 mouse melanoma cell line. alphaMSH induced the translocation of PPARgamma into the nucleus as an active transcription factor. This effect was independent of the cAMP/PKA pathway and was mediated by the activation of the PI(4,5)P2/PLC pathway, a pathway which we have described to be triggered by the alphaMSH-dependent MC1R stimulation. Moreover, in the same study, preliminary experiments showed that mouse melanoma cells responded to alphaMSH by reducing proliferation and that PPARgamma was involved in this effect. Due to its key role in the control of cell proliferation, PPARgamma agonists are used in therapeutic models for different forms of cancer, including melanoma. The purpose of this study was: (a) to confirm the different proliferative behavior in response to alphaMSH in healthy and in melanoma condition; (b) to verify whether the cAMP/PKA pathway and the PLC/PPARgamma pathway could exert an antagonistic function in the control of proliferation; (c) to deepen the knowledge of the molecular basis responsible for the down proliferative response of melanoma cells after exposure to alphaMSH. METHODS: We employed B16-F10 cell line, a human melanoma cell line (Mel 13) and two primary cultures of human melanocytes (NHM 1 and NHM 2, respectively), all expressing a wild type MC1R and responding to the alphaMSH in terms of pigmentation. We evaluated cell proliferation through: a) cell counting, b) cell cycle analysis c) protein expression of proliferation modulators (p27, p21, cyclin D1 and cyclin E). RESULTS: The alphaMSH acted as a mitogenic agent in primary cultures of human melanocytes, whereas it determined a slow down of proliferation in melanoma cell lines. FSK, as an inducer of the cAMP/PKA pathway, reproduced the alphaMSH mediated effect on proliferation in NHMs but it did not mimic the alphaMSH effect on proliferation in B16-F10 and Mel 13 melanoma cell lines. Meanwhile, 3 M3-FBS (3 M3), as an inducer of PI(4,5)P2/PLC pathway, reproduced the alphaMSH proliferative effect. Further experiments, treating melanoma cell lines with alphaMSH in the presence/absence of GW9662, as an inhibitor of PPARgamma, confirmed the key role of this transcription factor in decreasing cell proliferation in response to the hormone exposure. CONCLUSIONS: In both melanoma cell lines, alphaMSH determined the reduction of proliferation through the PI(4,5)P2/PLC pathway, employing PPARgamma as an effector element. These evidence could offer perspectives for new therapeutic approaches for melanoma. PMID- 29020975 TI - Workforce planning-going beyond the count. AB - Every country struggles with how best to meet the demand for health care services with the available resources. This commentary offers a perspective on the Israeli physician workforce and the analyses of Horowitz et al., which found age and gender differences in physician productivity and career longevity, differences across specialties, and a sizeable fraction of licensed Israeli physicians living abroad. Workforce planning can be subject to data collection and statistical uncertainties, but even more important are the assumptions and forecasts related to demand for services and organizational arrangements for care delivery. Readers should be cautious in analyzing productivity just by counting hours or years worked, and comparisons across countries may not account for differences in the nature of physician work. The question of whether Israel has enough physicians for the future has to go "beyond the count" to looking at the roles of other health professionals, the use of new technologies and new team configurations, and the overall efficiency and effectiveness of health care delivery systems such as hospitals, ambulatory care clinics, and community-based care. PMID- 29020977 TI - Platelet-rich plasma stimulates angiogenesis in mice which may promote hair growth. AB - BACKGROUND: Platelet-rich plasma (PRP) is an autologous concentration of human platelets in plasma. In this paper, we aimed to investigate the effect of PRP on hair growth. METHODS: Platelet-rich plasma and platelet-poor plasma were prepared by sterile centrifugation and injected into shaved dorsal skin of mice (n = 10). Saline injection was used in the control group. The length of randomly plucked hairs was measured at 8, 13, 18 days after PRP injection. Histological examination was preformed to observe the histologic changes of skins. The immunohistochemistry analysis of CD31 was performed to detect the changes of hair length and formation of new vessels. RESULTS: At 13 and 18 days after the last injection, the hair length of mice in PRP group (4.24 +/- 0.60 and 8.29 +/- 0.48 mm, respectively) was significantly longer compared with the control group (3.70 +/- 0.52 and 7.21 +/- 0.64 mm, p < 0.05). No significant difference in the hair length was found between the PPP group and the control (p > 0.05). In addition, the number of CD31-positive vessel in the PRP group (9.90 +/- 0.60) was more than that in the control group (8.60 +/- 2.34, p < 0.05). CONCLUSION: Platelet-rich plasma might promote hair length growth and increase the number of hair follicles by inducing angiogenesis. PMID- 29020978 TI - Precision medicine at the crossroads. AB - There are bioethical, institutional, economic, legal, and cultural obstacles to creating the robust-precompetitive-data resource that will be required to advance the vision of "precision medicine," the ability to use molecular data to target therapies to patients for whom they offer the most benefit at the least risk. Creation of such an "information commons" was the central recommendation of the 2011 report Toward Precision Medicine issued by a committee of the National Research Council of the USA (Committee on a Framework for Development of a New Taxonomy of Disease; National Research Council. Toward precision medicine: building a knowledge network for biomedical research and a new taxonomy of disease. 2011). In this commentary, I review the rationale for creating an information commons and the obstacles to doing so; then, I endorse a path forward based on the dynamic consent of research subjects interacting with researchers through trusted mediators. I assert that the advantages of the proposed system overwhelm alternative ways of handling data on the phenotypes, genotypes, and environmental exposures of individual humans; hence, I argue that its creation should be the central policy objective of early efforts to make precision medicine a reality. PMID- 29020976 TI - The added value of a mobile application of Community Case Management on referral, re-consultation and hospitalization rates of children aged under 5 years in two districts in Northern Malawi: study protocol for a pragmatic, stepped-wedge cluster-randomized controlled trial. AB - BACKGROUND: There is evidence to suggest that frontline community health workers in Malawi are under-referring children to higher-level facilities. Integrating a digitized version of paper-based methods of Community Case Management (CCM) could strengthen delivery, increasing urgent referral rates and preventing unnecessary re-consultations and hospital admissions. This trial aims to evaluate the added value of the Supporting LIFE electronic Community Case Management Application (SL eCCM App) compared to paper-based CCM on urgent referral, re-consultation and hospitalization rates, in two districts in Northern Malawi. METHODS/DESIGN: This is a pragmatic, stepped-wedge cluster-randomized trial assessing the added value of the SL eCCM App on urgent referral, re-consultation and hospitalization rates of children aged 2 months and older to up to 5 years, within 7 days of the index visit. One hundred and two health surveillance assistants (HSAs) were stratified into six clusters based on geographical location, and clusters randomized to the timing of crossover to the intervention using simple, computer-generated randomization. Training workshops were conducted prior to the control (paper-CCM) and intervention (paper-CCM + SL eCCM App) in assigned clusters. Neither participants nor study personnel were blinded to allocation. Outcome measures were determined by abstraction of clinical data from patient records 2 weeks after recruitment. A nested qualitative study explored perceptions of adherence to urgent referral recommendations and a cost evaluation determined the financial and time-related costs to caregivers of subsequent health care utilization. The trial was conducted between July 2016 and February 2017. DISCUSSION: This is the first large-scale trial evaluating the value of adding a mobile application of CCM to the assessment of children aged under 5 years. The trial will generate evidence on the potential use of mobile health for CCM in Malawi, and more widely in other low- and middle-income countries. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT02763345 . Registered on 3 May 2016. PMID- 29020979 TI - Perfectly matched 20-nucleotide guide RNA sequences enable robust genome editing using high-fidelity SpCas9 nucleases. AB - High-fidelity SpCas9 variants (eSpCas9 and SpCas9-HF1) have been engineered to reduce off-target effects. We found that changes in guide RNA length induced significant reductions in the editing activities of SpCas9 variants in plant cells. Single guide RNAs harboring precise, perfectly matched 20-nucleotide guide sequences are necessary for high on-target editing activities of eSpCas9 and SpCas9-HF1. Precise 20-nucleotide guide sequences derived from tRNA-sgRNA precursors enable robust on-target editing by these variants with enhanced specificity. Our work reveals an effective way of enhancing the use of the high fidelity SpCas9 nucleases for efficient and precise genome engineering. PMID- 29020981 TI - Areas with evidence of equity and their progress on mortality from tuberculosis in an endemic municipality of southeast Brazil. AB - BACKGROUND: In Brazil, people still fall ill and die from tuberculosis (TB), and this can be explained by the significant impasse in the equity of distribution of therapeutic resources to the population as a whole. The aim was to identify geographical areas which have shown progress in terms of equity (of income, schooling and urban occupancy) and test its effect on mortality from TB in a municipality of southeast Brazil. METHODS: It is an ecological study considering TB as the basic cause for deaths registered between 2006 and 2013 on the Mortality Information System and other variables obtained through the Demographic Census of the Brazilian Institute of Geography and Statistics (2010). The geographical area for analysis comprised the areas of coverage of the health services. Social indicators have been constructed through the Principal Component Analysis (PCA). The cases were geocoded and the annual mortality rate from TB was calculated with smoothing using the local empirical Bayesian method. Multiple linear regression was then performed. There was confirmation of the existence of spatial dependence of residue through the application of the Global Moran I test, and application of the Models with Global Spatial Effects, to identify the best standard of spatial regression. RESULTS: The mortality rates ranged from 0.00 to 2.8 deaths per 100,000 people, per year. In the PCA, three indicators were constructed, and designated as indicators of income, social inequality, and social equity. In multiple linear regression, the indicator of social equity was statistically significant (P < 0.0001) but had a negative association, an adjusted R2 of 28.36% and with spatial dependence (Moran I = 0.21, P = 0.003455). The best model to deal with existing spatial dependence was the Spatial Lag Model. CONCLUSIONS: The better social conditions have shown progress in reducing mortality from TB, thereby reinforcing the achievement of Sustainable Development Goals. In addition, cartography was also applied, which can be replicated in other scenarios throughout the world, using a scope distinct from that of works traditionally produced in that it places the emphasis on social equity. PMID- 29020980 TI - Identification of 76 novel B1 metallo-beta-lactamases through large-scale screening of genomic and metagenomic data. AB - BACKGROUND: Metallo-beta-lactamases are bacterial enzymes that provide resistance to carbapenems, the most potent class of antibiotics. These enzymes are commonly encoded on mobile genetic elements, which, together with their broad substrate spectrum and lack of clinically useful inhibitors, make them a particularly problematic class of antibiotic resistance determinants. We hypothesized that there is a large and unexplored reservoir of unknown metallo-beta-lactamases, some of which may spread to pathogens, thereby threatening public health. The aim of this study was to identify novel metallo-beta-lactamases of class B1, the most clinically important subclass of these enzymes. RESULTS: Based on a new computational method using an optimized hidden Markov model, we analyzed over 10,000 bacterial genomes and plasmids together with more than 5 terabases of metagenomic data to identify novel metallo-beta-lactamase genes. In total, 76 novel genes were predicted, forming 59 previously undescribed metallo-beta lactamase gene families. The ability to hydrolyze imipenem in an Escherichia coli host was experimentally confirmed for 18 of the 21 tested genes. Two of the novel B1 metallo-beta-lactamase genes contained atypical zinc-binding motifs in their active sites, which were previously undescribed for metallo-beta-lactamases. Phylogenetic analysis showed that B1 metallo-beta-lactamases could be divided into five major groups based on their evolutionary origin. Our results also show that, except for one, all of the previously characterized mobile B1 beta lactamases are likely to have originated from chromosomal genes present in Shewanella spp. and other Proteobacterial species. CONCLUSIONS: This study more than doubles the number of known B1 metallo-beta-lactamases. The findings have further elucidated the diversity and evolutionary history of this important class of antibiotic resistance genes and prepare us for some of the challenges that may be faced in clinics in the future. PMID- 29020982 TI - The prognostic value of C-X-C motif chemokine receptor 4 in patients with sporadic malignant peripheral nerve sheath tumors. AB - BACKGROUND: Recent studies indicate that C-X-C motif chemokine receptor 4 (CXCR4) and its ligand, C-X-C motif chemokine ligand 12 (CXCL12), stimulate expression of the cell cycle regulatory protein Cyclin D1 in neurofibromatosis 1-associated malignant peripheral nerve sheath tumor (MPNST) cells and promote their proliferation. In this study, we measured the expression of CXCR4, CXCL12, and Cyclin D1 proteins in sporadic MPNST tissues from Chinese patients and investigated their prognostic values. METHODS: CXCR4, CXCL12, and Cyclin D1 protein expression in samples from 58 Chinese patients with sporadic MPNST was assessed with immunohistochemical staining. Their prognostic values were evaluated with Kaplan-Meier analysis and a log-rank test. Multivariate Cox regression analysis was used to identify independent prognostic factors. RESULTS: High expression of CXCR4, CXCL12, and Cyclin D1 was observed in 19 (32.8%), 32 (55.2%), and 16 (27.6%) samples, respectively. CXCR4 expression was positively correlated with CXCL12 expression (r = 0.334, P = 0.010) and Cyclin D1 expression (r = 0.309, P = 0.018). Patients with high CXCR4 expression showed longer overall survival than those with low CXCR4 expression (chi2 = 4.642, P = 0.031). CONCLUSION: High CXCR4 expression may define a specific subtype of sporadic MPNST with favorable prognosis. PMID- 29020983 TI - CXCR2 Inhibition - a novel approach to treating CoronAry heart DiseAse (CICADA): study protocol for a randomised controlled trial. AB - BACKGROUND: There is emerging evidence of the central role of neutrophils in both atherosclerotic plaque formation and rupture. Patients with lower neutrophil counts following acute coronary syndromes tend to have a greater coronary flow reserve, which is a strong predictor of long-term cardiovascular health. But so far, no data are available regarding the impact of neutrophil inhibition on cardiovascular clinical or surrogate endpoints. Therefore, the aim of this study is to investigate the effects of AZD5069, a cysteine-X-cysteine chemokine receptor 2 (CXCR2) inhibitor, on coronary flow reserve and coronary structure and function in patients with coronary artery disease. METHODS/DESIGN: Ninety subjects with coronary artery disease undergoing percutaneous coronary intervention will be included in this investigator-driven, randomised, placebo controlled, double-blind, phase IIa, single-centre study. Participants will be randomised to receive either AZD5069 (40 mg) administered orally twice daily or placebo for 24 weeks. Change in coronary flow reserve as determined by 13N ammonia positron emission tomography-computed tomography will be the primary outcome. Change in the inflammatory component of coronary plaque structure and the backward expansion wave, an invasive coronary physiological measure of diastolic function, will be assessed as secondary outcomes. DISCUSSION: Cardiovascular surrogate parameters, such as coronary flow reserve, may provide insights into the potential mechanisms of the cardiovascular effects of CXCR2 inhibitors. Currently, ongoing trials do not specifically focus on neutrophil function as a target of intervention, and we therefore believe that our study will contribute to a better understanding of the role of neutrophil-mediated inflammation in coronary artery disease. TRIAL REGISTRATION: EudraCT, 2016-000775 24 . Registered on 22 July 2016. International Standard Randomised Controlled Trial Number, ISRCTN48328178 . Registered on 25 February 2016. PMID- 29020984 TI - Fully digital data processing during cardiovascular implantable electronic device follow-up in a high-volume tertiary center. AB - BACKGROUND: Increasing numbers of patients with cardiovascular implantable electronic devices (CIEDs) and limited follow-up capacities highlight unmet challenges in clinical electrophysiology. Integrated software (MediConnect(r)) enabling fully digital processing of device interrogation data has been commercially developed to facilitate follow-up visits. We sought to assess feasibility of fully digital data processing (FDDP) during ambulatory device follow-up in a high-volume tertiary hospital to provide guidance for future users of FDDP software. METHODS: A total of 391 patients (mean age, 70 years) presenting to the outpatient department for routine device follow-up were analyzed (pacemaker, 44%; implantable cardioverter defibrillator, 39%; cardiac resynchronization therapy device, 16%). RESULTS: Quality of data transfer and follow-up duration were compared between digital (n = 265) and manual processing of device data (n = 126). Digital data import was successful, complete and correct in 82% of cases when early software versions were used. When using the most recent software version the rate of successful digital data import increased to 100%. Software-based import of interrogation data was complete and without failure in 97% of cases. The mean duration of a follow-up visit did not differ between the two groups (digital 18.7 min vs. manual data transfer 18.2 min). CONCLUSIONS: FDDP software was successfully implemented into the ambulatory follow-up of patients with implanted pacemakers and defibrillators. Digital data import into electronic patient management software was feasible and supported the physician's workflow. The total duration of follow-up visits comprising technical device interrogation and clinical actions was not affected in the present tertiary center outpatient cohort. PMID- 29020985 TI - Olfactory sensory axons target specific protoglomeruli in the olfactory bulb of zebrafish. AB - BACKGROUND: The axons of Olfactory Sensory Neurons (OSNs) project to reproducible target locations within the Olfactory Bulb (OB), converting odorant experience into a spatial map of neural activity. We characterized the initial targeting of OSN axons in the zebrafish, a model system suitable for studying axonal targeting early in development. In this system the initial targets of OSN axons are a small number of distinct, individually identifiable neuropilar regions called protoglomeruli. Previously, Olfactory Marker Protein-expressing and TRPC2 expressing classes of OSNs were shown to project to specific, non-overlapping sets of protoglomeruli, indicating that particular subsets of OSNs project to specific protoglomerular targets. We set out to map the relationship between the classical Odorant Receptor (OR) an OSN chooses to express and the protoglomerulus its axon targets. METHODS: A panel of BACs were recombineered so that the axons of OSNs choosing to express modified ORs were fluorescently labeled. Axon projections were followed into the olfactory bulb to determine the protoglomeruli in which they terminated. RESULTS: RNA-seq demonstrates that OSNs express a surprisingly wide variety of ORs and Trace Amine Associated Receptors (TAARs) very early when sensory axons are arriving in the bulb. Only a single OR is expressed in any given OSN even at these early developmental times. We used a BAC expression technique to map the trajectories of OSNs expressing specific odorant receptors. ORs can be divided into three clades based upon their sequence similarities. OSNs expressing ORs from two of these clades project to the CZ protoglomerulus, while OSNs expressing ORs from the third clade project to the DZ protoglomerulus. In contrast, OSNs expressing a particular TAAR project to multiple protoglomeruli. Neither OR choice nor axonal targeting are related to the position an OSN occupies within the olfactory pit. CONCLUSIONS: Our results demonstrate that it is not the choice of a particular OR, but of one from a category of ORs, that is related to initial OSN target location within the olfactory bulb. These choices are not related to OSN position within the olfactory epithelium. PMID- 29020986 TI - Colorectal cancer-infiltrating T lymphocytes display a distinct chemokine receptor expression profile. AB - BACKGROUND: T lymphocytes exert important homeostatic functions in the healthy intestinal mucosa, whereas in case of colorectal cancer (CRC), infiltration of T lymphocytes into the tumor is crucial for an effective anti-tumor immune response. In both situations, the recruitment mechanisms of T lymphocytes into the tissues are essential for the immunological functions deciding the outcome. The recruitment of T lymphocytes is largely dependent on their expression of various chemokine receptors. The aim of this study was to identify potential chemokine receptors involved in the recruitment of T lymphocytes to normal human colonic mucosa and to CRC tissue, respectively, by examining the expression of 16 different chemokine receptors on T lymphocytes isolated from these tissues. METHODS: Tissues were collected from patients undergoing bowel resection for CRC. Lymphocytes were isolated through enzymatic tissue degradation of CRC tissue and nearby located unaffected mucosa, respectively. The expression of a broad panel of chemokine receptors on the freshly isolated T lymphocytes was examined by flow cytometry. RESULTS: In the normal colonic mucosa, the frequencies of cells expressing CCR2, CCR4, CXCR3, and CXCR6 differed significantly between CD4+ and CD8+ T lymphocytes, suggesting that the molecular mechanisms mediating T lymphocyte recruitment to the gut differ between CD4+ and CD8+ T lymphocytes. In CRC, the frequencies of cells expressing CCR2 and CXCR5 were significantly lower in both the CD4+ and CD8+ T lymphocyte populations compared to unaffected colonic mucosa, and the frequency of CCR9+ cytotoxic T lymphocytes was significantly decreased in CRC tissue. CONCLUSIONS: With regard to the normal gut mucosa, the results suggest that the molecular mechanisms mediating T lymphocyte recruitment differ between CD4+ and CD8+ T lymphocytes, which are important for understanding gut homeostasis. Importantly, T lymphocytes from CRC compared to normal colonic tissue displayed a distinct chemokine receptor expression profile, suggesting that mechanisms for recruitment of T lymphocytes to CRC tissue are skewed compared to normal colonic mucosa. Understanding these mechanisms could help in developing new strategies in cancer immunotherapy and to optimize already available alternatives such as immune checkpoint inhibitors. PMID- 29020987 TI - SHCBP1 promotes synovial sarcoma cell metastasis via targeting TGF-beta1/Smad signaling pathway and is associated with poor prognosis. AB - BACKGROUND: Our previous studies reported that SHC SH2-domain binding protein 1 (SHCBP1) functions as an oncogene via promoting cell proliferations in synovial sarcoma (SS) cells. However, whether SHCBP1 has any effect on tumor metastasis remains unexplored. METHODS: The expression of SHCBP1 was analyzed in 76 SS tissues and two SS cell lines by immunohistochemistry and real-time RT-PCR. The relationship between SHCBP1 expression and the clinicopathological features of SS was investigated. The role of SHCBP1 in SS cell adhesion, migration, invasion and angiogenesis was explored by adhesion, Wound healing, Transwell, and Matrigel tube formation assays. Western blotting was conducted to detect the protein expressions of TGF-beta1/Smad signaling pathway and EMT-related markers. The key molecules associated with migration, invasion and EMT were evaluated by immunohistochemistry in tumor specimens. RESULTS: In current study, we demonstrated that SHCBP1 overexpression significantly enhanced adhesion, migration, invasion and angiogenesis of SS cells. In contrast, SHCBP1 knockdown elicited the opposite effects on these phenotypes in vitro. SHCBP1 promoted tumor metastasis through inducing epithelial-mesenchymal transition (EMT) in SS cells. SHCBP1 knockdown could block the incidence of metastasis and EMT in SS cells. Furthermore, transforming growth factor-beta1 (TGF-beta1) induced SHCBP1 expression in a time-dependent pattern and SHCBP1 knockdown inhibited TGF-beta1 induced EMT. The activation of the TGF-beta1/Smad signaling pathway was involved in the oncogenic functions of SHCBP1 in SS. In addition, high expression of SHCBP1 in SS patients was associated with tumor progression and decreased survival as well as poor prognosis. CONCLUSIONS: Taken together, our results indicate that SHCBP1 may promote the metastasis of SS by inducing EMT through targeting TGF-beta1/Smad signaling pathway and can be a potential molecular target for SS therapy. PMID- 29020989 TI - Predictors of multidisciplinary rehabilitation outcomes in patients with chronic musculoskeletal pain: protocol for a systematic review and meta-analysis. AB - BACKGROUND: Chronic musculoskeletal pain is a major public health problem. Early prediction for optimal treatment results has received growing attention, but there is presently a lack of evidence regarding what information such proactive management should be based on. This study protocol, therefore, presents our planned systematic review and meta-analysis on important predictive factors for health and work-related outcomes following multidisciplinary rehabilitation (MDR) in patients with chronic musculoskeletal pain. METHODS: We aim to perform a synthesis of the available evidence together with a meta-analysis of published peer-reviewed original research that includes predictive factors preceding MDR. Included are prospective studies of adults with benign, chronic (> 3 months) musculoskeletal pain diagnoses who have taken part in MDR. In the studies, associations between personal and rehabilitation-based factors and the outcomes of interest are reported. Outcome domains are pain, physical functioning including health-related quality of life, and work ability with follow-ups of 6 months or more. We will use a broad, explorative approach to any presented predictive factors (demographic, symptoms-related, physical, psychosocial, work related, and MDR-related) and these will be analyzed through (a) narrative synthesis for each outcome domain and (b) if sufficient studies are available, a quantitative synthesis in which variance-weighted pooled proportions will be computed using a random effects model for each outcome domain. The strength of the evidence will be evaluated using the Grading of Recommendations, Assessment, Development and Evaluation. DISCUSSION: The strength of this systematic review is that it aims for a meta-analysis of prospective cohort or randomized controlled studies by performing an extensive search of multiple databases, using an explorative study approach to predictive factors, rather than building on single predictor impact on the outcome or on predefined hypotheses. In this way, an overview of factors central to MDR outcome can be made and will help strengthen the evidence base and inform a wide readership including health care practitioners and policymakers. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42016025339. PMID- 29020991 TI - Building a bright, evidence-informed future: a conversation starter from the incoming editors. AB - Health Research and Policy Systems (HARPS) has gone from strength to strength since it was established in 2003. As new Editors-in-Chief, we look forward to a bright future for HARPS, and we would like to start a conversation with you, HARPS readers, authors, editors and others, about how HARPS can best support ongoing progress and debate on evidence-informed health research policy and systems, particularly in developing countries. As a starting point for discussion, we would like to highlight three areas that we are passionate about, namely supporting an integrated community of researchers and policy-makers; building a focus on how health research and policy systems can support achievement of the Sustainable Development Goals; and strengthening our commitment to communicating and disseminating the work published in HARPS. We invite you to contribute your thoughts, ideas and suggestions on the future of HARPS, as we work together towards an evidence-informed future. PMID- 29020988 TI - Haloperidol affects bones while clozapine alters metabolic parameters - sex specific effects in rats perinatally treated with phencyclidine. AB - BACKGROUND: The presentation of schizophrenia (SCH) symptoms differs between the sexes. Long-term treatment with antipsychotics is frequently associated with decreased bone mineral density, increased fracture risk and metabolic side effects. Perinatal phencyclidine (PCP) administration to rodents represents an animal model of SCH. The aim of this study was to assess the effects of chronic haloperidol and clozapine treatment on bone mass, body composition, corticosterone, IL-6 and TNF-alpha concentrations and metabolic parameters in male and female rats perinatally treated with PCP. METHODS: Six groups of male and six groups of female rats (n = 6-12 per group) were subcutaneously treated on 2nd, 6th, 9th and 12th postnatal day (PN), with either PCP (10 mg/kg) or saline. At PN35, one NaCl and PCP group (NaCl-H and PCP-H) started receiving haloperidol (1 mg/kg/day) and one NaCl and PCP group (NaCl-C and PCP-C) started receiving clozapine (20 mg/kg/day) dissolved in drinking water. The remaining NaCl and PCP groups received water. Dual X-ray absorptiometry measurements were performed on PN60 and PN98. Animals were sacrificed on PN100. Femur was analysed by light microscopy. Concentrations of corticosterone, TNF-alpha and IL-6 were measured in serum samples using enzyme-linked immunosorbent assay (ELISA) commercially available kits. Glucose, cholesterol and triacylglycerol concentrations were measured in serum spectrophotometrically. RESULTS: Our results showed that perinatal PCP administration causes a significant decrease in bone mass and deterioration in bone quality in male and female rats. Haloperidol had deleterious, while clozapine had protective effect on bones. The effects of haloperidol on bones were more pronounced in male rats. It seems that the observed changes are not the consequence of the alterations of corticosterone, IL 6 and TNF-alpha concentration since no change of these factors was observed. Clozapine induced increase of body weight and retroperitoneal fat in male rats regardless of perinatal treatment. Furthermore, clozapine treatment caused sex specific increase in pro-inflammatory cytokines. CONCLUSION: Taken together our findings confirm that antipsychotics have complex influence on bone and metabolism. Evaluation of potential markers for individual risk of antipsychotics induced adverse effects could be valuable for improvement of therapy of this life long lasting disease. PMID- 29020990 TI - A comparison of two different anthelmintic treatment regimens against natural gastrointestinal nematode infections on two Lithuanian sheep farms. AB - BACKGROUND: According to targeted treatment (TT), the whole flock is dewormed based on knowledge of the risk, or parameters that quantify the mean level of infection, whereas according to targeted selective treatment (TST), only individual animals within the grazing group are treated, based on parasitological, production and/or morbidity parameters. The aim of this study was to compare two different treatment protocols on sheep farms in Lithuania. The study was conducted from 15 April to 31 October 2014 on three sheep farms. On the TT (the whole flock) and T(S)T (with FECs >= 300, respectively) farms all adult animals were treated orally with fenbendazole irrespective of EPG counts before the grazing season. The second treatment was applied with injectable ivermectin on both farms. However, on the TT farm all sheep were also treated on 2nd August regardless of their EPG counts, while on the T(S)T farm only those animals with an EPG >= 300 were treated on 1 July using a threshold of >= 300 EPG. No treatments were administered on the control farm (n = 1) during the study. RESULTS: Spring treatment of ewes significantly reduced nematode faecal egg counts (FEC) both on the TT and T(S)T farms, with the benefit of lowering pasture contamination with infective L3 stage larvae at the start of grazing season, while it remained significantly higher on the control farm. The positive effect of the spring treatment of ewes was reflected by increased body weight gains (BWG) in lambs in the first half of the grazing season. Following the second treatment, the weight gains in lambs on the T(S)T farm were higher compared to lambs on the TT farm, while BWG in the control lambs started to decrease. The difference was also substantiated by the body condition scores (BCS) and dag scores (DS) of lambs, which were highest on the T(S)T farm compared with those on the control and TT farms. CONCLUSIONS: The results of this study show that both treatment strategies were useful in reducing clinical effects (BCS and DS) of gastrointestinal nematode parasitism and increasing the performance in lambs. Furthermore, on the T(S)T farm some of animals were left in refugia, helping to slow down the development of anthelmintic resistance (AR) in future. PMID- 29020992 TI - Facile aerobic construction of iron based ferromagnetic nanostructures by a novel microbial nanofactory isolated from tropical freshwater wetlands. AB - BACKGROUND: Iron based ferromagnetic nanoparticles (IONP) have found a wide range of application in microelectronics, chemotherapeutic cell targeting, and as contrast enhancers in MRI. As such, the design of well-defined monodisperse IONPs is crucial to ensure effectiveness in these applications. Although these nanostructures are currently manufactured using chemical and physical processes, these methods are not environmentally conducive and weigh heavily on energy and outlays. Certain microorganisms have the innate ability to reduce metallic ions in aqueous solution and generate nano-sized IONP's with narrow size distribution. Harnessing this potential is a way forward in constructing microbial nanofactories, capable of churning out high yields of well-defined IONP's with physico-chemical characteristics on par with the synthetically produced ones. RESULTS: In this work, we report the molecular characterization of an actinomycetes, isolated from tropical freshwater wetlands sediments, that demonstrated rapid aerobic extracellular reduction of ferric ions to generate iron based nanoparticles. Characterization of these nanoparticles was carried out using Field Emission Scanning Electron Microscope with energy dispersive X-ray spectroscopy (FESEM-EDX), Field Emission Transmission Electron Microscope (FETEM), Ultraviolet-Visible (UV-Vis) Spectrophotometer, dynamic light scattering (DLS) and Fourier transform infrared spectroscopy (FTIR). This process was carried out at room temperature and humidity and under aerobic conditions and could be developed as an environmental friendly, cost effective bioprocess for the production of IONP's. CONCLUSION: While it is undeniable that iron reducing microorganisms confer a largely untapped resource as potent nanofactories, these bioprocesses are largely anaerobic and hampered by the low reaction rates, highly stringent microbial cultural conditions and polydispersed nanostructures. In this work, the novel isolate demonstrated rapid, aerobic reduction of ferric ions in its extracellular matrix, resulting in IONPs of relatively narrow size distribution which are easily extracted and purified without the need for convoluted procedures. It is therefore hoped that this isolate could be potentially developed as an effective nanofactory in the future. PMID- 29020993 TI - Assessment of a Business-to-Consumer (B2C) model for Telemonitoring patients with Chronic Heart Failure (CHF). AB - BACKGROUND: The purpose of this study is to assess the Business-to-Consumer (B2C) model for telemonitoring patients with Chronic Heart Failure (CHF) by analysing the value it creates, both for organizations or ventures that provide telemonitoring services based on it, and for society. METHODS: The business model assessment was based on the following categories: caveats, venture type, six factor alignment, strategic market assessment, financial viability, valuation analysis, sustainability, societal impact, and technology assessment. The venture valuation was performed for three jurisdictions (countries) - Singapore, the Netherlands and the United States - in order to show the opportunities in a small, medium-sized, and large country (i.e. population). RESULTS: The business model assessment revealed that B2C telemonitoring is viable and profitable in the Innovating in Healthcare Framework. Analysis of the ecosystem revealed an average to-excellent fit with the six factors. The structure and financing fit was average, public policy and technology alignment was good, while consumer alignment and accountability fit was deemed excellent. The financial prognosis revealed that the venture is viable and profitable in Singapore and the Netherlands but not in the United States due to relatively high salary inputs. CONCLUSIONS: The B2C model in telemonitoring CHF potentially creates value for patients, shareholders of the service provider, and society. However, the validity of the results could be improved, for instance by using a peer-reviewed framework, a systematic literature search, case-based cost/efficiency inputs, and varied scenario inputs. PMID- 29020994 TI - Willingness to participate in pragmatic dialysis trials: the importance of physician decisional autonomy and consent approach. AB - BACKGROUND: Pragmatic clinical trials embedded in routine delivery of clinical care can lead to improvements in quality of care, but often have design features that raise ethical concerns. METHODS: We performed a discrete choice experiment and used conjoint analysis to assess how specific attributes of pragmatic dialysis trials influenced patients' and physicians' willingness to have their dialysis facility participate in a hypothetical trial of hypertension management. Electronic survey data were collected from 200 patients enrolled from 11 outpatient hemodialysis units and from 203 nephrologists. The three attributes studied were physicians' treatment autonomy, participants' research burden, and the approach to consent. The influence of each attribute was quantified using mixed-effects logistic regression. RESULTS: Similar proportions of patients were willing to have their facilities participate in a trial with high vs. low physician autonomy (77% vs. 79%; p = 0.13) and research burden (76% vs. 80%; p = 0.06). Opt-in, opt-out, and notification-only consent approaches were acceptable to most patients (84%, 82%, and 81%, respectively), but compared to each of these consent approaches, fewer patients (66%) were willing to have their facility participate in a trial that used no notification (p < 0.001 for each 2-way comparison). Among the physicians, similar proportions were willing to participate in trials with high and low physician autonomy (61% and 61%, respectively, p = 0.96) or with low and high burden (60 and 61%, respectively, p = 0.79). However, as for the patients, the consent approach influenced trial acceptability with 77%, 69%, and 62% willing to participate using opt-in, opt out, and notification-only, respectively, compared to no notification (36%) (p < 0.001 for each 2-way comparison). CONCLUSIONS: Curtailing physician's treatment autonomy and increasing the burden associated with participation did not influence patients' or physicians' willingness to participate in the hypothetical research, suggesting that pragmatic dialysis trials are generally acceptable to patients and physicians. Both patients and physicians preferred consent approaches that include at least some level of patient notification, but the majority of patients were still willing to participate in trials that did not notify patients of the research. PMID- 29020995 TI - Sedation with propofol during ERCP: is the combination with esketamine more effective and safer than with alfentanil? Study protocol for a randomized controlled trial. AB - BACKGROUND: Endoscopic retrograde cholangiopancreatography (ERCP) is a gastrointestinal procedure that requires a relatively motionless patient during the intervention. Deep sedation by intravenous propofol combined with an opioid has recently become the preferred sedation technique. However, when high doses of propofol are used, side effects, namely respiratory depression, may occur. Esketamine has hypnotic, analgesic, and sympathomimetic effects. Our assumption is that a combination of propofol with esketamine reduces the dosage of individual drugs, thereby minimizing sedation side effects while keeping the same satisfaction level of patients and endoscopists. METHODS/DESIGN: The study will be performed as a randomized controlled multicenter trial. Patients undergoing ERCP, >= 18 years old, with American Society of Anesthesiologists (ASA) classification I-III will be randomized after written informed consent to group K (propofol/esketamine) or to group A (propofol/alfentanil). The primary outcome, reflecting effectiveness of sedation, is the total dose of propofol. Secondary outcome parameters are patients' and endoscopists' satisfaction with the procedure and the number of sedation-related pulmonary and cardiovascular events. Data on sedation-related events are collected by recording of oxygen saturation (SpO2), respiratory rate (RR), end-tidal CO2 (etCO2), heart rate (HR), arrhythmias (electrocardiogram (ECG)), and non-invasive blood pressure (NIBP) measurements. Satisfaction parameters are collected by means of questionnaires before and after the procedure and on the following day. DISCUSSION: Esketamine is known for its effective anesthetic and analgesic effects maintaining spontaneous breathing and airway reflexes. Due to an increase in sympathetic tone, hypotension and cardiac depression is less common. Unfortunately esketamine is also known for its psychotomimetic effects. We aim to demonstrate that the combination of esketamine with propofol for sedation in patients subjected to ERCP interventions is nevertheless superior to a combination of propofol with an opioid. TRIAL REGISTRATION: Nederland's Trial Register, NTR5486 . Registered on 17 September 2015. PMID- 29020996 TI - Quality of life profile of general Vietnamese population using EQ-5D-5L. AB - BACKGROUND: Health-related quality of life (HRQOL) is a vital benchmark to assess the effects of health interventions and policies. Measuring HRQOL of the general population is essential to establish a reference for health outcomes evaluations. However, evidence on HRQOL of general populations in low and middle income countries is very limited. This study aimed to measure HRQOL of the Vietnamese population by using the EuroQol-5 dimensions-5 levels (EQ-5D-5L) instrument and determine its associated factors. METHODS: A cross-sectional study was performed in Hanoi with 1571 residences in Hanoi, the capital city of Vietnam. EQ-5D-5L and EQ- visual analogue scale (EQ-VAS) were used to assess HRQOL. Potential covariates included socio-demographic characteristics, having acute symptoms in the last four weeks, chronic diseases in the last three months, having multiple health issues, and health service utilisation in the last twelve months. A generalized linear model was employed to identify the association between HRQOL and covariates. RESULTS: Overall, the mean EQ-5D utility index was 0.91 (SD = 0.15), and the mean EQ-VAS score was 87.4 (SD = 14.3). The highest proportion of respondents reporting any problems was in Usual activities (24.3%), followed by Anxiety/Depression (15.2%) and Pain/Discomfort (10.0%), while the lowest percentage was in Self-care (2.5%). Lower HRQOL composite scores were related to unemployment, lower income, higher education, living in urban areas, having chronic diseases, having multiple health issues and using health service. For any health problem self-reported by respondents, the health utility reduced by 0.02 (respiratory diseases) to 0.15 (musculoskeletal diseases). CONCLUSIONS: Health utility of the general population and reductions for self-reported health problems in this study are useful for future population health evaluations and comparisons. It also informs the development of interventions to reduce health problems of the general population. PMID- 29020997 TI - Anterior cutaneous nerve entrapment syndrome with pain present only during Carnett's sign testing: a case report. AB - BACKGROUND: The identification of anterior cutaneous nerve entrapment syndrome is often challenging, due to no widely accepted standard guidelines regarding laboratory and imaging tests for the diagnosis of ACNES. CASE PRESENTATION: A 77 year-old Japanese man presented with mild lower abdominal pain that had been present for the past 3 years. Physical examination revealed no abdominal pain during palpation, with normal laboratory and imaging testing; therefore, conservative therapy was initiated. However, the abdominal pain continued. Re examination 16 days later revealed three tender points in accordance with intercostal nerves Th10, Th11, and Th12, with the pain occurring only during Carnett's sign testing. A cutaneous injection of 1% lidocaine was administered, and the abdominal pain was resolved about 30 min later. Based on these results, anterior cutaneous nerve entrapment syndrome was diagnosed. CONCLUSIONS: It is sometimes hard to diagnose anterior cutaneous nerve entrapment syndrome without testing for Carnett's sign. If patients present with chronic abdominal pain, clinicians should test for Carnett's sign even if no pain is elicited during regular abdominal palpation. PMID- 29021001 TI - Correction to: More than 2500 years of oil exposure shape sediment microbiomes with the potential for syntrophic degradation of hydrocarbons linked to methanogenesis. PMID- 29020998 TI - Proteomic profiling of breast cancer metabolism identifies SHMT2 and ASCT2 as prognostic factors. AB - BACKGROUND: Breast cancer tumors are known to be highly heterogeneous and differences in their metabolic phenotypes, especially at protein level, are less well-understood. Profiling of metabolism-related proteins harbors the potential to establish new patient stratification regimes and biomarkers promoting individualized therapy. In our study, we aimed to examine the relationship between metabolism-associated protein expression profiles and clinicopathological characteristics in a large cohort of breast cancer patients. METHODS: Breast cancer specimens from 801 consecutive patients, diagnosed between 2009 and 2011, were investigated using reverse phase protein arrays (RPPA). Patients were treated in accordance with national guidelines in five certified German breast centers. To obtain quantitative expression data, 37 antibodies detecting proteins relevant to cancer metabolism, were applied. Hierarchical cluster analysis and individual target characterization were performed. Clustering results and individual protein expression patterns were associated with clinical data. The Kaplan-Meier method was used to estimate survival functions. Univariate and multivariate Cox regression models were applied to assess the impact of protein expression and other clinicopathological features on survival. RESULTS: We identified three metabolic clusters of breast cancer, which do not reflect the receptor-defined subtypes, but are significantly correlated with overall survival (OS, p <= 0.03) and recurrence-free survival (RFS, p <= 0.01). Furthermore, univariate and multivariate analysis of individual protein expression profiles demonstrated the central role of serine hydroxymethyltransferase 2 (SHMT2) and amino acid transporter ASCT2 (SLC1A5) as independent prognostic factors in breast cancer patients. High SHMT2 protein expression was significantly correlated with poor OS (hazard ratio (HR) = 1.53, 95% confidence interval (CI) = 1.10-2.12, p <= 0.01) and RFS (HR = 1.54, 95% CI = 1.16-2.04, p <= 0.01). High protein expression of ASCT2 was significantly correlated with poor RFS (HR = 1.31, 95% CI = 1.01 1.71, p <= 0.05). CONCLUSIONS: Our data confirm the heterogeneity of breast tumors at a functional proteomic level and dissects the relationship between metabolism-related proteins, pathological features and patient survival. These observations highlight the importance of SHMT2 and ASCT2 as valuable individual prognostic markers and potential targets for personalized breast cancer therapy. TRIAL REGISTRATION: ClinicalTrials.gov, NCT01592825 . Registered on 3 May 2012. PMID- 29020999 TI - Beneficial effects of Heqi san on rat model of polycystic ovary syndrome through the PI3K/AKT pathway. AB - BACKGROUND: Heqi San, a traditional Chinese medicine (TCM) has been reported to regulate hormone levels in patients with metabolic disease, suggesting a potential clinical application. In the current study, we aimed to elucidate the effect of Heqi San on rat model of polycystic ovary syndrome (PCOS). METHOD: PCOS model was established in female SD rats. Rats were randomly divided into four groups: the control, untreated PCOS model, Heqi San treated PCOS model (8.1 g/kg) and metformin (MET) treated PCOS model (135 mg/kg) groups. All animals were subcutaneously injected with 6 mg/100 g dehydroepiandrosterone (DHEA) in the neck once a day for 20 consecutive days. The serum hormone levels were measured by ELISA. The ovarian tissues were stained with hematoxylin and eosin (HE) to undergo pathological examination. The expression levels of GLTU4 and PTEN mRNA were examined by real time PCR. The crucial proteins in the PI3K/APT pathway were analyzed by western blotting. Then, the functions of the target genes were analyzed using bioinformatics approaches. RESULTS: We found that Heqi San was able to recover the serum hormone levels and improve insulin resistance in PCOS rat model. A morphological lesion of the ovary was also restored with the Heqi San treatment. More importantly, we discovered a correlation between the PI3K/AKT signaling pathway and the beneficial effects of Heqi San, demonstrating that its application could alter the expression levels of p-ERK, p-AKT, p-GSK3beta, IRS-1, PTEN and GLTU4, all key factors in the PI3K/APT pathway. Through a bioinformatical analysis, we predicted the related gene function and pathway of the pathological mechanism of PCOS and found miRNAs that are likely to be critical in PCOS occurrence, including rno-miR-144-3p, rno-miR-30c-2-3p, rno-miR 486, rno-miR-3586-3p and rno-miR-146b-5p. CONCLUSION: The beneficial effects of Heqi on PCOS, including alter serum hormone levels, recover ovary morphological lesions and improve insulin resistance, which is mediated through the PI3K/AKT pathway. The potential role of miRNA-144-3p in PCOS pathogenesis. PMID- 29021000 TI - The Swedish study of Irrigation-fluid temperature in the evacuation of Chronic subdural hematoma (SIC!): study protocol for a multicenter randomized controlled trial. AB - BACKGROUND: Chronic subdural hematoma (cSDH) is one of the most common conditions encountered in neurosurgical practice. Recurrence, observed in 5-30% of patients, is a major clinical problem. The temperature of the irrigation fluid used during evacuation of the hematoma might theoretically influence recurrence rates since irrigation fluid at body temperature (37 oC) may beneficially influence coagulation and cSDH solubility when compared to irrigation fluid at room temperature. Should no difference in recurrence rates be observed when comparing irrigation-fluid temperatures, there is no need for warmed fluids during surgery. Our main aim is to investigate the effect of irrigation-fluid temperature on recurrence rates and clinical outcomes after cSDH evacuation using a multicenter randomized controlled trial design. METHODS: The study will be conducted in three neurosurgical departments with population-based catchment areas using a similar surgical strategy. In total, 600 patients fulfilling the inclusion criteria will randomly be assigned to either intraoperative irrigation with fluid at body temperature or room temperature. The power calculation is based on a retrospective study performed at our department showing a recurrence rate of 5% versus 12% when comparing irrigation fluid at body temperature versus fluid at room temperature (unpublished data). The primary endpoint is recurrence rate of cSDH analyzed at 6 months post treatment. Secondary endpoints are mortality rate, complications and health-related quality of life. DISCUSSION: Irrigation-fluid temperature might influence recurrence rates in the evacuation of chronic subdural hematomas. We present a study protocol for a multicenter randomized controlled trial investigating our hypothesis that irrigation fluid at body temperature is superior to room temperature in reducing recurrence rates following evacuation of cSDH. TRIALS REGISTRATION: ClinicalTrials.gov, ID: NCT02757235 . Registered on 2 May 2016. PMID- 29021003 TI - Seasonality in Multiple Maternities. AB - In the 19th century, a series of international statistical congresses introduced common rules for the national demographic registers. This activity contributed to the genesis of statistical research. During the history of twin research, Hellin's law has played a central role because it is an approximately correct association between the rates of multiple maternities. However, it has been mathematically proven that Hellin's law cannot hold exactly. The majority of all studies of Hellin's law are based on empirical rates of multiple maternities. Such studies can never confirm the law, but only identify errors too large to be characterized as random. It is of particular interest to examine why the rates of higher multiple maternities are sometimes too high or too low when Hellin's law is used as a benchmark. However, divergences from the law are often difficult to explain and/or eliminate. Different improvements to the law have been proposed. In this article, we study the seasonality of multiple maternities. We apply Hellin's law to compare the seasonality of twin and triplet rates. PMID- 29021005 TI - Trends in depression prevalence in the USA from 2005 to 2015: widening disparities in vulnerable groups. AB - BACKGROUND: Major depression is associated with significant disability, morbidity, and mortality. The current study estimated trends in the prevalence of major depression in the US population from 2005 to 2015 overall and by demographic subgroups. METHODS: Data were drawn from the National Survey on Drug Use and Health (NSDUH), an annual cross-sectional study of US persons ages 12 and over (total analytic sample N = 607 520). Past-year depression prevalence was examined annually among respondents from 2005 to 2015. Time trends in depression prevalence stratified by survey year were tested using logistic regression. Data were re-analyzed stratified by age, gender, race/ethnicity, income, and education. RESULTS: Depression prevalence increased significantly in the USA from 2005 to 2015, before and after controlling for demographics. Increases in depression were significant for the youngest and oldest age groups, men, and women, Non-Hispanic White persons, the lowest income group, and the highest education and income groups. A significant year * demographic interaction was found for age. The rate of increase in depression was significantly more rapid among youth relative to all older age groups. CONCLUSIONS: The prevalence of depression increased significantly in the USA from 2005 to 2015. The rate of increase in depression among youth was significantly more rapid relative to older groups. Further research into understanding the macro level, micro level, and individual factors that are contributing to the increase in depression, including factors specific to demographic subgroups, would help to direct public health prevention and intervention efforts. PMID- 29021006 TI - Determination of Total Biotin by Liquid Chromatography Coupled with Immunoaffinity Column Cleanup Extraction: Multilaboratory Testing, Final Action 2016.02. AB - Single- and multilaboratory testing data have provided systematic scientific evidence that a simple, selective, accurate, and precise method can be used as a potential candidate reference method for dispute resolution in determining total biotin in all forms of infant, adult, and/or pediatric formula. Using LC coupled with immunoaffinity column cleanup extraction, the method fully meets the intended purpose and applicability statement in AOAC Standard Method Performance Requirement 2014.005. The method was applied to a cross-section of infant formula and adult nutritional matrixes, and acceptable precision and accuracy were established. The analytical platform is inexpensive, and the method can be used in almost any laboratory worldwide with basic facilities. The immunoaffinity column cleanup extraction is the key step to successful analysis. PMID- 29021004 TI - Saduria entomon infected with Hysterothylacium aduncum found in situ in the stomach of cod (Gadus morhua) from the Baltic Sea. AB - The parasite fauna of cod (Gadus morhus) is well described, but the life cycles of Baltic cod parasites are known only in general terms. Invertebrates commonly found in the stomach of cod are recognized as intermediate hosts in the life cycles of nematodes or acanthocephalans. The aim of this study was to determine the source of infection of Baltic cod with parasites found in situ in invertebrates present in the cod stomach. Our results indicate that Saduria entomon is both a source of infection of Baltic cod with parasites and an intermediate host in the life cycle of Hysterothylacium aduncum in the Baltic Sea. PMID- 29021007 TI - The Senior Care Pharmacist's Role in Transitions of Care. PMID- 29021002 TI - Collagen triple helix repeat containing 1 (CTHRC1) activates Integrin beta3/FAK signaling and promotes metastasis in ovarian cancer. AB - BACKGROUND: Metastasis is the major cause of morbidity and mortality in patients with epithelial ovarian cancer (EOC), however the mechanisms that underline this process are poorly understood. Collagen triple helix repeat containing-1 (CTHRC1) is a 28-kDa secreted protein reported to be involved in vascular remodeling, bone formation and morphogenesis. This study aimed to investigate the role of CTHRC1 in promoting the metastasis of EOC and to elucidate the underlying molecular mechanisms. METHODS: The biologic functions of CTHRC1 in metastasis were validated both in vivo and in vitro experiments. The phosphor-antibody microarray analysis and Co-immunoprecipitation were performed to detect and identify the integrin beta3/FAK signaling pathway that mediated the function of CTHRC1. Seventy two EOC samples were analyzed for association between CTHRC1/integrin beta3 expression and patient clinicopathological features. RESULTS: We demonstrated that CTHRC1 enhances the biological behavior of EOC including cell migration, invasion, as well as its adhesion capability to cell-extracellular matrix in vitro. Additionally, CTHRC1 promoted metastatic spread of EOC cells in an i.p. ovarian xenograft model and this phenotype was primarily ascribed to the activation of integrin/FAK signaling. Mechanistically, we determined that FAK were phosphorylated on Tyr397, and were activated by integrin beta3, which is important for the CTHRC1-mediated migratory and invasive ability of EOC cells in vitro and i.p. metastasis. In addition, we found that attenuated CTHRC1/integrin beta3 expression predicted a poor prognostic phenotype and advanced clinical stage of EOC. CONCLUSIONS: Our results suggest that CTHRC1, a newly identified regulator of i.p. metastasis through activation of integrin beta3/FAK signaling in EOC, may represent a potential therapeutic target for ovarian cancer. PMID- 29021008 TI - Medication Review and Transitions of Care: A Case Report of a Decade-Old Medication Error. AB - A 69-year-old Caucasian male with a 25-year history of paranoid schizophrenia was brought to the emergency department because of violence toward the staff in his nursing facility. He was diagnosed with a urinary tract infection and was admitted to the behavioral health unit for medication stabilization. History included a five-year state psychiatric hospital admission and nursing facility placement. Because of poor cognitive function, the patient was unable to corroborate medication history, so the pharmacy student on rotation performed an in-depth chart review. The review revealed a transcription error in 2003 deleting amantadine 100 mg twice daily and adding amiodarone 100 mg twice daily. Subsequent hospitalization resulted in another transcription error increasing the amiodarone to 200 mg twice daily. All electrocardiograms conducted were negative for atrial fibrillation. Once detected, the consulted cardiologist discontinued the amiodarone, and the primary care provider was notified via letter and discharge papers. An admission four months later revealed that the nursing facility restarted the amiodarone. Amiodarone was discontinued and the facility was again notified. This case reviews how a 10-year-old medication error went undetected in the electronic medical records through numerous medication reconciliations, but was uncovered when a single comprehensive medication review was conducted. PMID- 29021009 TI - Optimizing the Use of Discharge Medication Lists in Nursing Facilities. AB - OBJECTIVE: To highlight the need to optimize the use of discharge medication lists in nursing facilities. SETTING: In January 2014, the care transitions (CT) pharmacists at Frederick Memorial Hospital, Frederick, Maryland, began a pilot project in which they identified and followed high-risk patients transitioning from hospital to nursing facility and from nursing facility to home. PRACTICE DESCRIPTION: This pilot project served as a needs assessment to identify opportunities to improve patients' transition from nursing facility to home with the goal of reducing hospital readmissions. PRACTICE INNOVATION: One of the enormous opportunities that were immediately recognized was the nursing facility discharge medication list. MAIN OUTCOME MEASUREMENTS: The CT pharmacists found that patients had difficulty deciphering and understanding the medication lists. RESULTS: By reviewing the elements of existing medication lists, the CT pharmacists identified 11 components of a nursing facility discharge medication list that would increase patient safety and potentially reduce medication-related hospital readmissions. These elements include the capability of electronically generating a medication list that includes both brand and generic medication names with accurate indications in layperson terms. The ideal discharge medication list would also be patient-specific and remove irrelevant information and take into consideration patients' age, vision, and health literacy. CONCLUSION: With the upcoming implementation of the nursing facility value-based purchasing program, nursing facilities may soon receive incentives to improve their medication management systems at discharge. PMID- 29021010 TI - Exposure to Community Violence Among Low-Income African American Youth in Chicago: A Latent Class Analysis. AB - African American youth are exposed to some of the highest rates of exposure to community violence. However, few studies have explored factors related to exposures and various subtypes of exposures to community violence (i.e., no exposure, witnessing only and being a witness/victim). Among a matched sample of 129 African American youth and their caregivers, no exposure to community violence was correlated with being heterosexual versus being a lesbian, gay, bisexual, and transgender (LGBT) person, having parents who owned their homes versus rented, and having higher authoritarian parenting attitudes. In addition, being a witness/victim of community violence was correlated with any youth substance use, lower levels of school bonding, having less future orientation, less parental home ownership, and an adverse family history. Practice and programmatic considerations are discussed based on these findings. PMID- 29021012 TI - The Role of Entitlement, Self-Control, and Risk Behaviors on Dating Violence Perpetration. AB - Dating violence continues to be pervasive among college students (Stappenbeck & Fromme, 2010). Given the paucity of research investigating the various pathways through which risk factors are linked to dating violence among different college campuses, we use multiple group path analysis to examine the role of child abuse, self-control, entitlement, and risky behaviors on dating violence perpetration among college students from one Southeastern and one Midwestern university. There were 1,482 college students (51% female) enrolled in undergraduate courses at 2 large public universities who completed paper and pencil surveys. Dating violence perpetration was directly associated with gender, child physical abuse, and sexual and drug risk behaviors and indirectly associated with college Greek letter fraternity affiliation, self-control, and entitlement. Moreover, significant differences in the pathways to dating violence were found between the Southeast and Midwest campuses. PMID- 29021011 TI - Intimate Partner Violence Victimization and Cognitive Function in a Mixed-Sex Epidemiological Sample of Urban Adults. AB - Intimate partner violence (IPV) victimization is associated with a wide range of mental and physical health problems, but little is known about the effect of IPV on cognitive decline. Previous research suggests an association between IPV victimization and cognitive dysfunction, but the few studies that have examined this phenomenon were cross-sectional in design and focused only on female victims of IPV. This study examined cognitive function over time among a diverse population of both male and female victims of IPV. Regression analyses indicated increased completion time on Trail Making Test (TMT) A for both male and female victims of IPV living below poverty as well as for female victims of IPV without previously depressive symptomatology. Results also indicated increased completion time on TMT B for male victims of IPV. Our findings support an association between IPV victimization and increased cognitive decline that is moderated by poverty status and previous depressive symptomatology. PMID- 29021013 TI - A Short Measure of Social Reactions to Sexual Assault: The Social Reactions Questionnaire-Shortened. AB - Social reactions to disclosures of sexual assault have significant effects on women's postassault recovery. However, being the most widely used measure of these reactions, the 48-item Social Reactions Questionnaire (SRQ; Ullman, 2000) is too long for some research and evaluation efforts. Thus, we developed a 16 item short version, the Social Reactions Questionnaire-Shortened (SRQ-S). Three preexisting college and community samples of women survivors (N = 1,012; 1,084; and 344) were used to determine which SRQ items were most related to psychological symptoms and could form reliable subscales. The brief version was then administered in a college and community sample of 447 women survivors. Confirmatory factor analyses (CFAs) and supporting psychometrics showed the SRQ-S reliably measures three general scales of the SRQ (Turning Against, Unsupportive Acknowledgment, Positive Reactions) as well as eight 2-item subscales (e.g., Blame). The SRQ-S provides researchers and interventionists with a brief alternative measure to the original SRQ. PMID- 29021014 TI - What Is the Optimal Dose and Schedule for Dasatinib in Chronic Myeloid Leukemia: Two Case Reports and Review of the Literature. AB - Efficacy and safety of dasatinib in chronic phase (CP) chronic myelogenous leukemia (CML) patients has been well established. Initially approved dose and schedule of 70 mg twice daily has been changed to 100 mg once daily after demonstration of the same efficacy with less toxicity. Some patients require significant dose reductions to enable continued treatment with dasatinib. Even at a dose of 80 mg once daily, several patients may require further dose reductions due to substantial toxicity while maintaining good control of their disease. We report two CP-CML patients achieving and maintaining major molecular responses while on very low doses of dasatinib, ultimately achieving undetectable levels of BCR-ABL fusion transcript in their peripheral blood. Observations of several CP CML cases responding remarkably well to dasatinib despite very low dose and frequent dose interruptions challenge our current understanding and the accuracy of the data regarding the optimum dose and schedule of this drug. In selected intolerant patients, low-dose dasatinib therapy may be a safe and effective alternative treatment option before a treatment discontinuation or change considered. PMID- 29021015 TI - Knockdown of Legumain Suppresses Cervical Cancer Cell Migration and Invasion. AB - Cervical cancer is the second leading type of cancer in women living in less developed countries. The pathological and molecular mechanisms of cervical cancer are not comprehensively known. Though legumain has been found to be highly expressed in various types of solid tumors, its expression and biological function in cervical cancer remain unknown. In this study, we aimed to investigate legumain expression and functions in cervical cancer. We found that legumain was highly expressed in cervical cancer cells. When knocked down, legumain expression in HeLa and SiHa cells significantly reduced its migration and invasion abilities compared with control cells. Furthermore, legumain silencing suppressed the activation of matrix metalloproteases (MMP2 and MMP3) in cervical cancer cells. This study indicates that legumain might play an important role in cervical cancer cell migration and invasion. Legumain might be a potential therapeutic target for cervical cancer therapy. PMID- 29021016 TI - Tumor-Suppressor Gene NBPF1 Inhibits Invasion and PI3K/mTOR Signaling in Cervical Cancer Cells. AB - The purpose of this study was to assess the effects of NBPF1 expression on cervical cancer cell invasion and apoptosis and to illustrate its potential mechanism. Human cervical cancer HeLa cells were transfected with the constructed siNBPF1 or pcDNA3.1-NBPF1 vectors. Effects of NBPF1 expression on cell invasion ability and cell apoptosis were analyzed using the Matrigel method and an Annexin V-FITC cell apoptosis kit, respectively. In addition, cell apoptosis-related proteins involved with the PI3K/mTOR signaling pathway were analyzed using Western blot. Remediation experiments were conducted to verify the effects of NBPF1 expression on cell invasion and apoptosis. Compared to the control, mRNA and protein expressions of NBPF1 were significantly decreased when cells were transfected with siNBPF1 (p < 0.05), which was contrary to the results of cells transfected with pcDNA3.1-NBPF1. Overexpression of NBPF1 significantly suppressed HeLa cell invasion but promoted cell apoptosis (p < 0.05). Overexpression of NBPF1 performed a significant inhibitory role on PI3K/mTOR signal pathway expression, while NBPF1 was silenced, showing contrary results. Our data suggested that NBPF1 overexpression may be a suppressor for cervical cancer via affecting cell invasion and apoptosis through regulating PI3K/mTOR signaling pathway. NBPF1 may be a potential therapeutic target for cervical cancer treatment. PMID- 29021017 TI - Inhibition of NF-kappaB Activity Enhances Sensitivity to Anticancer Drugs in Cholangiocarcinoma Cells. AB - Cholangiocarcinoma (CCA) is a dismal cancer. At present, there is no effective chemotherapeutic regimen for CCA. This may be due to the marked resistance of CCA to chemotherapy drugs, for which a mechanism remains unknown. Nuclear factor kappaB (NF-kappaB) is constitutively activated in a variety of cancer cells, including CCA. It has been shown to play roles in growth, metastasis, and chemoresistance of cancer. In the present study, we examined whether NF-kappaB is involved in the chemoresistance of CCA and whether dehydroxymethylepoxyquinomicin (DHMEQ), an effective NF-kappaB inhibitor, can overcome the drug resistance of CCA. Two CCA cell lines, KKU-M213 and KKU-M214, were treated with DHMEQ and/or chemotherapeutic drugs. Cell viability, apoptosis, and the expressions of the ATP binding cassette (ABC) transporters were compared. The combination of chemotherapy drugs, 5-fluorouracil, cisplatin, and doxorubicin, with DHMEQ significantly enhanced the cytotoxicity of all chemotherapeutic drugs compared to DHMEQ or drug alone. Furthermore, the mRNA level of ABCB1, a multidrug-resistant protein, was significantly decreased in the 5-fluorouracil combined with DHMEQ treated cells. These findings suggest that the inhibition of NF-kappaB by DHMEQ enhanced the chemoresponsiveness of CCA cells, possibly by reducing the expression of ABC transporter. Inhibition of NF-kappaB may be a potential chemodrug-sensitizing strategy for chemoresistant cancer such as CCA. PMID- 29021018 TI - Curcumin Enhances the Effects of 5-Fluorouracil and Oxaliplatin in Inducing Gastric Cancer Cell Apoptosis Both In Vitro and In Vivo. AB - Despite the efficacy of fluoropyrimidines and oxaliplatin-based chemotherapy for patients, this treatment leads to significant patient inconvenience, toxicity, and cost. This study aims to validate a nontoxic agent, curcumin, to the current chemotherapeutic regimen. In in vitro experiments, curcumin induced apoptosis in gastric cancer cell line BGC-823. Synergistic antitumor effects of curcumin were observed in combination with 5-fluorouracil (5-FU) and oxaliplatin. These effects were accompanied by downregulation of the expression of Bcl-2 protein and mRNA and upregulation of the expression of Bax and caspase 3, 8, and 9. In addition, the in vivo study showed that the combination of curcumin and 5-FU/oxaliplatin exhibited potent growth inhibition of BGC-823 xenograft tumors. Furthermore, compared with the control group, no significant difference was observed in the body weight of curcumin-treated nude mice. In conclusion, curcumin may act synergistically with the chemotherapeutic regimen FOLFOX in gastric cancer in vitro and in vivo by inducing apoptosis via Bcl/Bax-caspase 8,9-caspase 3 pathway. PMID- 29021019 TI - Enhancement of Chemosensitivity by Stathmin-1 Silencing in Gastric Cancer Cells In Situ and In Vivo. AB - Reports show that the stathmin gene may have a close relationship with tumor chemotherapeutic sensitivity. However, the effect of stathmin-1 on the chemosensitivity of gastric cancer to docetaxel has not been clearly determined. siRNA targeting stathmin-1 was introduced. The cell growth inhibition, expression of associated proteins, cell cycle, and apoptosis were evaluated by MTT, Western blot, and flow cytometric assays, respectively. The influence of silencing stathmin-1 was detected in situ and in vivo. SGC7901/docetaxel cells are the drug resistant cells. After silencing stathmin-1, the resistance index (RI) reduced to 3.41, the expressions of STMN-1, MDR1, and ERCC1 were downregulated, but caspase 3 was upregulated. Stathmin-1 siRNA could improve the chemosensitivity of gastric cancer cells to docetaxel, making the percentage of cells at the sub-G1 stage increase and promote apoptosis. The growth of transplantation tumor was significantly suppressed. Therefore, stathmin-1 might be a potential target for enhancing the chemosensitivity of gastric cancer. PMID- 29021020 TI - Overexpression of NDRG2 Increases Iodine Uptake and Inhibits Thyroid Carcinoma Cell Growth In Situ and In Vivo. AB - Medullary thyroid carcinoma (MTC) is an uncommon and highly aggressive tumor of the neuroendocrine system, which derives from the neuroendocrine C cells of the thyroid gland. Except for surgical resection, there are not very many effective systemic treatment options for MTC. N-Myc downstream-regulated gene 2 (NDRG2) had a significantly lower expression in MTC compared with normal thyroid tissue. However, the function of NDRG2 in MTC oncogenesis is largely unknown. In this study, we found that overexpression of NDRG2 inhibited the proliferation of TT cells (human medullary thyroid carcinoma cells) in vitro and suppressed the development of MTC in a nude mouse xenograft model. Further analysis revealed that NDRG2 arrested the cell cycle G0/G1 phase progression and induced TT cell apoptosis. Moreover, NDRG2 overexpression may mediate the antiproliferative effect by reducing cyclin D1 and cyclin E protein levels. We also found aberrant NDRG2-mitigated TT cell migration and invasion in vitro. Sodium/iodide symporter (NIS) mediates active I- transport into the thyroid follicular cells, and radionuclide treatment is a promising therapy for MTC. Our current data revealed that NDRG2 overexpression enhanced NIS level in TT cells and increased their iodine uptake in vitro. Furthermore, 99mTcO4- radionuclide imaging of the xenograft tumors indicated that NDRG2 could promote NIS-mediated radionuclide transport. In conclusion, the present study suggested that NDRG2 is a critical molecule in the regulation of MTC biological behavior and a potential promoter in radioactive iodine therapy. PMID- 29021021 TI - Inhibition of Lung Carcinoma A549 Cell Growth by Knockdown of Hexokinase 2 In Situ and In Vivo. AB - Hexokinase 2 (HK2) has been identified as an oncogene in some malignant diseases such as breast cancer and ovarian cancer. However, the role of HK2 in lung cancer remains unclear. In this study, we explored the functional role of HK2 in lung cancer cell proliferation and tumorigenesis and determine its expression profile in lung cancer. HK2 expression was increased in primary lung cancer tissues of patients. Knocking down HK2 expression by small interfering RNA (siRNA) inhibited cell proliferation in lung cancer cells and nude mice. Thus, HK2 is required for sustained proliferation and survival of tumor cells in vitro and in vivo, and its aberrant expression may contribute to the pathogenesis of lung cancer. Thus, our study provided evidence that HK2 functions as a novel oncogene in lung cancer and may be a potential therapeutic target for lung cancer. PMID- 29021022 TI - Reduced PDCD4 Expression Promotes Cell Growth Through PI3K/Akt Signaling in Non Small Cell Lung Cancer. AB - It is largely recognized that PDCD4 is frequently lost in tumors of various origins, including lung cancer, and its loss contributes to tumor progression. However, its role and molecular mechanism remain largely unexplored in non-small cell lung cancer (NSCLC). In this study, downregulated PDCD4 mRNA expression was found in NSCLC tissues compared to their corresponding paracarcinoma tissues and distal paracarcinoma tissues. Induced expression of PDCD4 inhibited cell growth and proliferation and cell cycle transition in vitro. Conversely, knocking down PDCD4 expression promoted cell growth and proliferation. Mechanistically, PDCD4 inactivated PI3K/Akt signaling and its downstream cell cycle factors CCND1 and CDK4 to regulate cell growth in NSCLC. Additionally, PI3K-specific inhibitor Ly294002 suppressed the expression of pPI3K (Tyr458), pAkt (Ser473), CCND1, and CDK4 in PC9-shPDCD4 and A549-shPDCD4 cells. Furthermore, Akt-specific inhibitor MK2206 inhibited the expression of pAkt (Ser473), CCND1, and CDK4 in PC9-shPDCD4 and A549-shPDCD4 cells. Taken together, our study provides evidence that PDCD4 inhibits cell growth through PI3K/Akt signaling in NSCLC and may be a potential therapeutic target for NSCLC. PMID- 29021023 TI - Knockdown of microRNA-29a Changes the Expression of Heat Shock Proteins in Breast Carcinoma MCF-7 Cells. AB - Breast cancer is the most commonly occurring cancer among women. MicroRNAs as noncoding small RNA molecules play pivotal roles in cancer-related biological processes. Increased levels of microRNA-29a in the serum of breast cancer patients have been reported. Since heat shock proteins (HSPs) play important roles in cell events, the quantitative fluctuations in their cellular levels could be deemed as key indicators of how the exerted treatment alters cell behavior. In this regard, using an antisense small RNA, we attempted to investigate the effects of miR-29a knockdown on the expression of HSPs genes in the MCF-7 breast cancer cell line. MCF-7 cells were cultured in high-glucose Dulbecco's modified Eagle's medium with 10% FBS. Studied cells were subdivided into five groups: treated with scramble, anti-miR-29a, anti-miR-29a + Taxol, Taxol, and control. Taxol was added 24 h post-anti-miR transfection and RNA extraction, and cDNA synthesis was done 48 h later. The changes in expression of HSP27, HSP40, HSP60, HSP70, and HSP90 were evaluated by real-time PCR. Our results revealed that inhibitors of microRNA-29a promote apoptosis through upregulation of HSP60 level and downregulation of HSP27, HSP40, HSP70, and HSP90 levels and could be contemplated as a compelling alternative for Taxol employment with similar effects and/or to sensitize cancer cells to chemotherapy with fewer side effects. PMID- 29021024 TI - Apoptotic Melanoma B16-F1 Cells Induced by Lidamycin Could Initiate the Antitumor Immune Response in BABL/c Mice. AB - In the process of tumor cell apoptosis induced by specific regents, calreticulin (CRT) was transferred from endoplasmic reticulum (ER) onto the cell membrane. These tumor cells, when used as the cellular vaccine to immunize experimental animals, could initiate effective antitumor immunoresponse against homologous tumor cells. This is referred to as immunogenic cell death. Lidamycin (LDM) is an enediyne antibiotic, which has extremely potent cytotoxicity to cancer cells. In this study, the mouse melanoma B16-F1 cancer cells were used to investigate the ability of LDM in promoting immunogenic cell death. Our data showed that LDM could induce apoptosis of B16-F1 cancer cells, accompanied by CRT translocation onto the cell membrane. These LDM-treated B16-F1 cells could be recognized and phagocytosed more efficiently by macrophage and dendritic cells. When the LDM treated apoptotic B16-F1 cells were used as a whole-cell tumor vaccine to immune mice, the mice obtained resistance against rechallenged B16-F1 living cells. At the same time, the specific antitumor immune response was observed in these vaccinated mice. The splenocytes from the mice vaccinated with LDM-treated B16-F1 cells showed significantly enhanced NK lymphocyte activities and also faster growth rate and increased secretion of IFN-gamma when encountering the cellular antigens from B16-F1 cells. All these results suggested that LDM could promote immunogenic cell death in B16-F1 cells, and these LDM-treated B16-F1 cells could be used as a sort of cell vaccine to initiate effective antitumor immunoresponse in mice. PMID- 29021026 TI - Editorial. PMID- 29021025 TI - ERRATUM. AB - Histone deacetylase (HDAC) inhibitors have been shown to enhance the effects of 5 fluorouracil (5-FU) against various cancer cells; however, no report has shown that an HDAC inhibitor may enhance the effects of 5-FU with radiation. Therefore, we investigated whether the novel HDAC inhibitor OBP-801/YM753 could enhance the effects of 5-FU with radiation on esophageal squamous carcinoma KYSE170 cells. The inhibition of the cell growth was significantly stronger with the combination of OBP-801/YM753 with 5-FU than with the 5-FU treatment only. Furthermore, inhibition of the colony formation was the most effective with the combined treatment of OBP-801/YM753, 5-FU, and radiation. Western blot analysis showed that OBP-801/YM753 suppressed the expression of thymidylate synthase induced by 5 FU. Therefore, this three-combined therapy is promising for patients with esophageal squamous carcinoma. PMID- 29021027 TI - Chapter 1: Sinonasal anatomy and function. AB - An understanding of paranasal sinus anatomy based on important fixed landmarks rather than variable anatomy is critical to ensure safe and complete surgery. The concept of the paranasal surgical box defines the anatomic limits of dissection. The boundaries of the surgical box include the middle turbinate medially, orbital wall laterally, and skull base superiorly. The "vertical component" of the surgical box defines the boundaries of the frontal recess and includes the middle turbinate and intersinus septum medially, medial orbital wall and orbital roof laterally, nasofrontal beak anteriorly, and skull base and posterior table of frontal sinus posteriorly. The paranasal sinuses are divided into anterior, posterior, and sphenoidal functional cavities based on their distinct drainage pathways into the nose. The ultimate goal of surgery is to create a functional sinus cavity. Application of the paranasal surgical box and its vertical component enables the surgeon to view the limits of dissection with a single position of the endoscope. This will ensure complete dissection of the functional sinonasal compartments and effectively avoid leaving behind disconnected cells from the surgical cavity, mucocele formation, mucous recirculation, overcome obstructive phenomenon and enable maximal delivery of topical therapy in the post operative setting. This article reviews the structure and function of the nasal cartilages and turbinates. It also describes the concept of the paranasal surgical box, key anatomical landmarks and limits of dissection. Normal anatomy and common variants of normal anatomy are discussed. PMID- 29021028 TI - Chapter 2: Nasal obstruction. AB - Nasal obstruction is one of the most common presenting symptoms requiring medical attention at both the primary care physician and the otorhinolaryngologists' level. Nasal obstruction may be caused by anatomic, physiological, or neurologic factors. Complexity is added to this situation because, often, the causation may be multifactorial. Nasal obstruction is the primary symptom of persistent allergic rhinitis (AR) and affects up to 40% of the population. AR must be treated throughout the year; thus, treatment choices and patient compliance must be considered. It is interesting to note that AR directly affects an individual's quality of life, quality of sleep, and workplace efficiency. Therefore, the magnitude of costs to both the individual and the society must be recognized. Various medical therapies and surgical techniques will be described for the treatment of nasal obstruction. PMID- 29021029 TI - Chapter 3: Epistaxis. AB - Epistaxis is a common problem that may range in severity from a minor nuisance to hemodynamically significant bleeding. Vascular anatomy allows for predictable identification of suspicious bleeding sites. Historically, packing was the workhorse of management, but, currently, more directed interventions have become available. These modalities may result in improvements in both cost-effectiveness and patient comfort. PMID- 29021030 TI - Chapter 4: Chronic rhinosinusitis. AB - Chronic rhinosinusitis (CRS) is the second most common chronic medical condition in the United States. It represents a group of disorders characterized by inflammation of the nasal mucosa and paranasal sinuses of at least 12 weeks duration. CRS with or without nasal polyps is defined as inflammation of the nose characterized by two or more symptoms, one of which should be either nasal blockage, obstruction, congestion, or nasal discharge (anterior/posterior nasal drip); with or without facial pain/pressure; and/or with or without reduction or loss of smell. Symptomatology should be supported by obvious disease evident in either nasal endoscopy or computed tomography imaging. Although CRS is not likely to be cured by either medical or surgical therapy, it can generally be controlled. Best medical evidence supports maintenance therapy with intranasal corticosteroids and saline irrigation. For exacerbations, short to intermediate courses of antibiotics (up to 4-weeks) with or without oral corticosteroids are recommended. For patients with difficult-to-treat CRS, functional endoscopic sinus surgery provides an adjunctive therapeutic option. PMID- 29021031 TI - Chapter 5: Pediatric rhinosinusitis: Definitions, diagnosis and management-An overview. AB - Rhinosinusitis is common in the pediatric population; however, diagnostic and management techniques often differ when compared with adult rhinosinusitis. Multidisciplinary guidelines have outlined the diagnostic criteria for pediatric rhinosinusitis. Although acute rhinosinusitis is a more infectious phenomenon, chronic sinusitis involves a more multifactorial etiology. This article outlines some of the definitions of rhinosinusitis, diagnosis and management of pediatric sinusitis, and the complications of rhinosinusitis seen in the pediatric population. PMID- 29021032 TI - Chapter 6: Nasal polyps. AB - Nasal polyps occur in 1-4% of the population, usually occurring in the setting of an underlying local or systemic disease. The most common associated condition is chronic rhinosinusitis (CRS). A high prevalence of nasal polyps is also seen in allergic fungal rhinosinusitis, aspirin-exacerbated respiratory disease, Churg Strauss syndrome, and cystic fibrosis. In the setting of CRS, nasal polyps are not likely to be cured by either medical or surgical therapy; however, control is generally attainable. The best medical evidence supports the use of intranasal corticosteroids for maintenance therapy and short courses of oral corticosteroids for exacerbations. The evidence for short- and long-term antibiotics is much less robust. For patients with symptomatic nasal polyposis nonresponsive to medical therapies, functional endoscopic sinus surgery provides an adjunctive therapeutic option. PMID- 29021033 TI - Chapter 7: Allergic fungal rhinosinusitis. AB - Allergic fungal rhinosinusitis (AFRS) is a type of chronic rhinosinusitis in which patients classically exhibit nasal polyps, type I IgE-mediated hypersensitivity, characteristic findings on computed tomography scans, eosinophilic mucin, and positive fungal stain. New research has sought to further understand the pathophysiology of AFRS. However, this has also led to debate about the classification and predominance of this interesting disease process. Historically, patients with AFRS are immunocompetent. The disease is most prevalent in the southeast and south central United States and typically presents with sinus pressure, hyposmia, and congestion. Radiographically, cases of AFRS have a distinct appearance, often exhibiting unilateral heterogeneously dense material, which may erode and expand the paranasal sinus bony walls. Treatment typically consists of surgery, sinonasal irrigations, and topical and systemic steroids, all with the effort to decrease the fungal load and antigenic response. Immunotherapy is also often included in the treatment regimen for AFRS. PMID- 29021034 TI - Chapter 8: Invasive fungal rhinosinusitis. AB - Invasive fungal rhinosinusitis (IFRS) is a disease of the paranasal sinuses and nasal cavity that typically affects immunocompromised patients in the acute fulminant form. Early symptoms can often mimic rhinosinusitis, while late symptoms can cause significant morbidity and mortality. Swelling and mucosal thickening can quickly progress to pale or necrotic tissue in the nasal cavity and sinuses, and the disease can rapidly spread and invade the palate, orbit, cavernous sinus, cranial nerves, skull base, carotid artery, and brain. IFRS can be life threatening if left undiagnosed or untreated. While the acute fulminant form of IFRS is the most rapidly progressive and destructive, granulomatous and chronic forms also exist. Diagnosis of IFRS often mandates imaging studies in conjunction with clinical, endoscopic, and histopathological examination. Treatment of IFRS consists of reversing the underlying immunosuppression, antifungal therapy, and aggressive surgical debridement. With early diagnosis and treatment, IFRS can be treated and increase patient survival. PMID- 29021035 TI - Chapter 9: Benign sinonasal neoplasms. AB - Benign sinonasal neoplasms are a heterogeneous group of tumors that present with similar symptoms including nasal obstruction, anosmia, rhinorrhea, and epistaxis. The proper workup and accurate diagnosis is essential for these tumors so that the appropriate treatment plan can be established. In this article of benign sinonasal neoplasms, we discuss their typical clinical presentation, histological and radiographic findings, and treatment options. PMID- 29021036 TI - Chapter 10: Sinonasal malignancies. AB - Malignant tumors of the sinonasal tract are uncommon tumors of the head and neck. Patients often present in the later years of life with unilateral symptoms and potential involvement of nearby structures such as the orbit, brain, or cranial nerves. Presenting symptoms are similar to patients suffering from inflammatory sinonasal disease and thus early diagnosis relies heavily on a high clinical suspicion. There are established risk factors based on exposure to the by products of woodworking, metal, textile, and leather industries. Sinonasal malignancies are generally divided into those of epithelial origin (squamous cell carcinoma, adenocarcinoma, and adenoid cystic carcinoma) and nonepithelial origin (olfactory neuroblastoma, chondrosarcoma, and mucosal melanoma). Accurate histopathology confirmation and staging of the tumor is critical prior to making treatment decisions. Both computed tomography and magnetic resonance imaging are required to accurately determine the extent of local disease. Treatment is based on multimodality therapy, primarily surgical excision, and postoperative radiotherapy. This article reviews the classification of malignant tumors of the paranasal sinuses, their clinical presentation, relevant diagnostic investigations, and the principals of therapy and management. PMID- 29021037 TI - Chapter 11: Granulomatous diseases and chronic sinusitis. AB - Nasal crusting, rhinitis, and sinusitis are presentations of common conditions; however, these can also be the presenting symptoms of an underlying systemic disorder such as an infection, malignancy, or granulomatous disease. Granulomatous diseases with head and neck manifestations include Wegener's granulomatosis, Churg-Strauss syndrome, and sarcoidosis. These diseases are managed through a multidisciplinary approach that often includes otolaryngologists. This article presents a brief review of granulomatous diseases and their rhinologic manifestations and includes relevant diagnostic tests and systemic and local treatment options. PMID- 29021038 TI - Chapter 12: Surgery for sinonasal disease. AB - Surgery for chronic rhinosinusitis is an effective complement to a well-designed medical regimen. Functional endoscopic sinus surgery is among the most common surgeries performed for sinonasal disease refractory to maximal medical therapy. Nasal surgery techniques, such as septoplasty and inferior turbinate surgery, may assist in both relieving the symptom of nasal obstruction and providing access for sinus surgery. Although rare, open sinus techniques are occasionally required. PMID- 29021039 TI - Chapter 13: Olfactory disorders. AB - Decreased sense of smell can lead to significant impairment of quality of life, including taste disturbance and loss of pleasure from eating with resulting changes in weight, and difficulty in avoiding health risks such as spoiled food or leaking natural gas. Recent epidemiological reports have shown that despite fairly low self-reported prevalence of these disorders in large population studies, when validated smell identification or threshold tests are used they reveal quite a high prevalence of hyposmia and anosmia in certain groups, especially the elderly. Several different pathophysiological processes, such as head trauma, aging, autoimmunity, and toxic exposures, can contribute to smell impairment, with distinct implications concerning prognosis and possible treatment. Otolaryngologists are most likely to see this symptom in patients with chronic rhinosinusitis, and this now appears to be caused more by the mucosal inflammation than by physical airway obstruction. PMID- 29021040 TI - Chapter 14: Nonallergic rhinitis. AB - Rhinitis is characterized by one or more of the following nasal symptoms: congestion, rhinorrhea (anterior and posterior), sneezing, and itching. It is classified as allergic or nonallergic, the latter being a diverse syndrome that is characterized by symptoms of rhinitis that are not the result of IgE-mediated events. Excluding infectious rhinitis and underlying systemic diseases, clinical entities that can be classified among the disorders that make up the nonallergic rhinitis syndromes include gustatory rhinitis, nonallergic rhinitis with eosinophilia syndrome (NARES), atrophic, drug-induced (rhinitis medicamentosa), hormone induced, senile rhinitis (of the elderly), rhinitis associated with chronic rhinosinusitis with or without nasal polyps, and the idiopathic variant formerly known as vasomotor rhinitis but more accurately denoted as nonallergic rhinopathy (NAR). The prevalence of nonallergic rhinitis has been observed to be one-third that of allergic rhinitis, affecting ~7% of the U.S. population or ~22 million people. NAR is the most common of the nonallergic rhinitis subtypes, comprising at least two-thirds of all nonallergic rhinitis sufferers. Although certain precipitants such as perfume, strong odors, changes in temperature or humidity, and exposure to tobacco smoke are frequently identified as symptom triggers, NAR may occur in the absence of defined triggers. The diagnosis of nonallergic rhinitis is purely clinical and relies on a detailed history and physical exam. Skin testing or in vitro testing to seasonal and perennial aeroallergens is required to make the diagnosis of nonallergic rhinitis. Because of the heterogeneous nature of this group of disorders, treatment should be individualized to the patient's underlying pathophysiology and/or symptoms and is often empiric. PMID- 29021041 TI - Chapter 15: Allergic rhinitis. AB - Allergic rhinitis affects 60 million of the U.S. population, 1.4 billion of the global population, and its prevalence appears to be increasing. The duration and severity of allergic rhinitis symptoms place a substantial burden on patient's quality of life, sleep, work productivity, and activity. The health impact of allergic rhinitis is compounded by associated complications and comorbidities including asthma, otitis media, sinusitis, and nasal polyps. Allergic rhinitis symptoms result from a complex, allergen-driven mucosal inflammatory process, modulated by immunoglobulin E (IgE), and caused by interplay between resident and infiltrating inflammatory cells and a number of vasoactive and proinflammatory mediators, including cytokines. This allergic response may be characterized as three phases: IgE sensitization, allergen challenge, and elicitation of symptoms. A thorough allergic history is the best tool for the diagnosis of allergic rhinitis, the establishment of which is achieved by correlating the patient's history and physical exam with an assessment for the presence of specific IgE antibodies to relevant aeroallergens determined by skin testing or by in vitro assay. Management of allergic rhinitis includes modifying environmental exposures, implementing pharmacotherapy, and, in select cases, administering allergen-specific immunotherapy. Intranasal therapeutic options include antihistamines, anticholinergic agents, corticosteroids (aqueous or aerosol), mast cell stabilizers, saline, and brief courses of decongestants. Selection of pharmacotherapy is based on the severity and chronicity of symptoms with the most effective medications being intranasal corticosteroids and intranasal antihistamines, which can be used in combination (separately or in fixed dose) for more difficult to control allergic rhinitis. PMID- 29021042 TI - Chapter 16: Determining the role of allergy in sinonasal disease. AB - The contributing role of specific IgE sensitization in the pathophysiology of sinonasal diseases including rhinitis, chronic rhinosinusitis (CRS), and nasal polyps is explored. Although it is estimated that sensitization to environmental allergens is present in 75% of patients with rhinitis, the role of allergy in CRS and nasal polyps is less certain. However, when atopy is present in the setting of nasal polyps, it is associated with worse quality of life and a higher incidence of asthma. Several theories have been put forth whereby inhalant aeroallergen exposure could drive the inflammatory response that occurs both in the nose and in the sinuses. Tools available to determine the presence of allergic sensitization include skin tests for immediate hypersensitivity, in vitro testing for allergen-specific IgE, and nasal allergen provocation testing. Whether by skin testing or in vitro testing, the identification of specific IgE requires clinical correlation with the history and physical exam. PMID- 29021043 TI - Chapter 17: Immunomodulation of allergic sinonasal disease. AB - IgE hypersensitivity is important to the pathogenesis of allergic diseases and the development and persistence of airway inflammation. Allergic immunomodulation encompasses various therapies that attempt to suppress or modify the immune mechanisms responsible for IgE-mediated disease. These include allergy immunotherapy (AIT) in the forms of subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT), as well as the emergence of biological agents, such as anti-IgE, for allergic respiratory disease. Clinical evidence strongly supports the efficacy and safety of AIT for the treatment of allergic rhinitis, allergic conjunctivitis, and allergic asthma, but for chronic rhinosinusitis evidence is lacking. In allergic rhinitis, the decision to initiate AIT depends on the degree to which symptoms can be reduced by avoidance and medication, the amount and type of medication required to control symptoms, the adverse effects of medication, the severity and duration of symptoms, and their effect on quality of life. AIT has the potential to produce sustained long-lasting immune modulation and possibly avoid or reduce lifelong requirements for medical therapy. Although SLIT is currently being evaluated, SCIT remains the preferred form of AIT in the United States because of robust efficacy data, availability of allergen extracts, and current Food and Drug Administration approval. However, SLIT holds the potential for greater patient safety and convenience. Other immunomodulators such as anti-IgE also hold promise, but require further investigation. PMID- 29021044 TI - Topical mitomycin C as an adjunct to surgical debulking and medical treatment in rhinoscleroma. AB - BACKGROUND: Rhinoscleroma is a chronic granuloma that is endemic in Egypt and is caused by gram-negative bacilli (Klebsiella rhinoscleromatis). The nasal mucosa is affected in almost all cases, which causes nasal obstruction, anosmia, and epistaxis. The disease usually passes through an atrophic stage (atrophic rhinitis) and a granulomatous stage before ending in the fibrotic stage, with possible bone destruction. OBJECTIVE: This study assessed the effect of topical mitomycin C (MMC) on reducing the recurrence of granulation tissue and intranasal adhesions after endoscopic debulking and continuous medical treatment of nasal rhinoscleroma. MATERIALS AND METHODS: This double-blind randomized clinical trial was performed with 30 patients who had rhinoscleroma (granulomatous and fibrotic stages). At the end of endoscopic debulking, meshes impregnated with MMC was placed in one nasal cavity for 5 minutes, while another meshes impregnated with saline solution were placed in the opposite side. Repeated meshes with MMC were placed in the same side during the follow-up period. Patients were followed up for 1 year. The recurrence of granulation tissue and the degree of intranasal adhesions were recorded and compared according to the Lund-Kennedy score. RESULTS: At 12 months' follow-up, among the total 30 patients, 30 MMC sides were compared with 30 control sides: 69% of MMC sides versus 32% of control sides had no recurrence of granulation tissue (p = 0.01) and 65% of MMC sides versus 24% of control sides had no recurrence of intranasal adhesions (p = 0.03). The Lund Kennedy score decreased from 2.1 +/- 0.64 to 0.8 +/- 0.41 and from 2.3 +/- 0.33 to 1.9 +/- 0.20 in the MMC sides and control sides, respectively, with a nonstatistically significant lower incidence of intranasal adhesions in the MMC sides. CONCLUSION: Topical MMC may reduce granulation tissue and intranasal adhesion formation in patients with rhinoscleroma. Further studies with a larger number of samples and longer follow-up periods are recommended. PMID- 29021045 TI - Malpractice in Treatment of Sinonasal Disease by Otolaryngologists: A Review of the Past 10 Years. PMID- 29021047 TI - Erratum. PMID- 29021046 TI - The utility of magnetic resonance imaging in the diagnostic evaluation of idiopathic olfactory loss. PMID- 29021048 TI - Unplanned Revisions and Readmissions After Ambulatory Sinonasal Surgery. PMID- 29021049 TI - CD4+ and CD8+ regulatory T cells in chronic rhinosinusitis mucosa. AB - BACKGROUND: Chronic rhinosinusitis (CRS) mucosal inflammation is characterized by an accumulation of effector-memory T cells, but their immune regulatory potential has not been adequately examined. Coexpression of transcription factor, forkhead box P3 (Foxp3), and interleukin-2 receptor, CD25, in CD4+ and CD8+ T cells is linked with regulatory function in humans. The aim of this study was to investigate the regulatory T cell (Treg) phenotype of CD4+ (CD4Treg) and CD8+ (CD8Treg) T cells in peripheral blood (PB) and sinus mucosa of CRS patients. METHODS: Prospective study was performed involving 32 CRS with nasal polyp (CRSwNP), 14 CRS without nasal polyp (CRSsNP), and 8 control patients. Sinus and PB T lymphocytes were stained with CD3, CD4, CD8, CD25, and Foxp3 and analyzed using flow cytometry. Relevant clinical characteristics, sinus bacterial culture results, and eosinophilic mucus were examined. RESULTS: Sinus mucosa had a higher percentage of CD4Treg (CD3+CD4+CD25+Foxp3+) population compared with PB in all patients. The percentage of PB CD4Treg and CD8Treg (CD3+CD8+CD25+Foxp3+) was not significantly different between the study groups. CRS mucosal tissue had a higher percentage of CD4Treg and activated T-helper cells than controls. There was no significant difference in PB and mucosal CD4Treg populations in CRS patients based on the presence of allergy, sinus culture results, or eosinophilic mucus. In controls, increased mucosal CD4Treg correlated with coexisting allergy. Although overall CD4Treg numbers were higher, the regulatory potential of activated CD4+ T cells (CD4Treg/activated T-helper cell ratio) was significantly lower in CRS mucosa compared with controls. The CD8Treg subset was also significantly reduced in CRSwNP mucosa compared with controls. CONCLUSION: A higher percentage of CD4Treg and activated T-helper cells in CRS mucosa suggests increased inflammation in CRS, independent of the presence of allergy, microbial culture results, or eosinophilic mucus. However, the decreased ratio of CD4Treg versus activated T-helper cells in CRS and reduced CD8Treg population in CRSwNPs indicates an inflammatory bias and the inability to control mucosal disease. PMID- 29021050 TI - Assessing the relationship between serum resistin and nasal obstruction in children with allergic rhinitis. AB - BACKGROUND: Nasal obstruction has been reported as a "key symptom" of allergic rhinitis (AR) because it is deeply associated with impaired quality of life and it reflects more directly the allergic inflammation in the nasal mucosa. Resistin is known to be involved in inflammatory processes exerting an important role in the regulation of cytokine production even though its effective proinflammatory activity at nasal level has never been fully established. This study investigates the relationship between resistin levels and nasal obstruction assessed by an objective method such as active anterior rhinomanometry. METHODS: Fifty-three children between 4 and 10 years of age affected by persistent allergic rhinitis (PAR) were enrolled and subdivided in two groups. Serum resistin levels were detected in all children. The same day patients underwent rhinomanometry, which was considered negative (no nasal obstruction) when the fraction of predicted values (p.v.'s) was between 71 and 100% and it was considered positive when the fraction of p.v. was <=70%. RESULTS: The serum resistin levels were significantly higher in children with moderate-severe PAR than in patients with mild PAR (p < 0.03). Furthermore, serum resistin levels were significantly higher in children with positive rhinomanometry compared with negative rhinomanometry (p < 0.03). The fraction of p.v.'s of nasal flows in patients with nasal obstruction had a significant negative correlation with serum resistin levels (p < 0.001). CONCLUSION: This study provides evidence that resistin levels are increased in children with severe nasal obstruction measured by an objective and quantitative approach. PMID- 29021051 TI - Rhinology fellowship training and its scholarly impact. AB - BACKGROUND: Previous examination of the impact of fellowship training on scholarly productivity among otolaryngologists found that head and neck surgeons and otologists had a higher mean h-index than fellowship-trained rhinologists. Because fellowship training in rhinology is a historically newer trend, the objectives of the present analysis were to further characterize research productivity among fellowship-trained academic rhinologists, including geographic and temporal trends, to gain insight into the future direction of scholarly pursuits within the field. METHODS: Fellowship-trained rhinologists in academic practices were identified from the American Rhinologic Society online listings and organized by academic rank, number of years in practice, location, and h index, as calculated using the Scopus database. RESULTS: Mean h-index rose with increasing years in practice after fellowship. The h-index, number of publications, and the E-factor (a newly described bibliometric) increased with successive academic rank. The E-factor for rhinologists in this current analysis was not statistically different from the values calculated for other otolaryngology subspecialties (p > 0.05). CONCLUSION: Fellowship-training in rhinology is a relatively recent development, with half of the academic rhinologists included in this analysis having completed fellowship training within the past 5 years. Scholarly productivity among academic rhinologists increases with academic seniority. As the current cohort of fellowship-trained rhinologists progress in their academic careers, previously described deficits in scholarly productivity relative to other subspecialties are expected to diminish. PMID- 29021052 TI - Erratum. PMID- 29021053 TI - Olfactory bulb volume changes in patients with sinonasal polyposis: a magnetic resonance imaging study. PMID- 29021054 TI - Smell and taste in patients with vascular malformation of the extracranial head and neck region. AB - BACKGROUND: Olfactory and gustatory functions have not been investigated in patients with vascular malformation of the extracranial head and neck region with validated smell and taste tests. Although olfactory and gustatory deficiencies are often not outwardly apparent, they substantially affect daily life. METHODS: Smell and taste tests using sniffin sticks and taste strips were administered in 40 patients. RESULTS: For all age groups and both sexes, odor threshold (THR) values were, on average, lower in patients than in healthy individuals; whereas, values of odor identification and discrimination were not significantly lower. Regarding odor THR, 33 (82.5%) patients were hyposmic. Taste values (sweet, sour, salty, bitter, and total taste) were, on average, lower in patients than in healthy individuals; 21 (52.5%) patients were hypogeusic. Disease duration did not correlate with smell and taste test values. Patients with and without tongue involvement had decreased odor threshold and taste values. No significant differences were identified when taste values on the left and right sides of the tongue were compared in patients without tongue involvement and with unilateral and bilateral tongue involvement. Patients with venous malformations had lower smell test values, and patients with lymphatic malformations had lower taste test values than patients with other malformations. CONCLUSION: Patients exhibit significantly reduced olfactory and gustatory function even when the nose and/or tongue are not malformed. Patients should be tested with validated smell and taste tests to adequately inform and advise them about overcoming smell and taste deficits. PMID- 29021055 TI - The link between rhinitis and rapid-eye-movement sleep breathing disturbances in children with obstructive sleep apnea. AB - BACKGROUND: Rhinitis and obstructive sleep apnea (OSA) often coexist during childhood. To delineate this clinical association, we examined OSA severity and polysomnogram (PSG) features in children with rhinitis and OSA. Given that rapid eye-movement (REM) sleep is characterized by nasal congestion, we hypothesized that children with rhinitis have more REM-related breathing abnormalities. METHODS: We conducted a retrospective cross-sectional analysis of 145 children with PSG-diagnosed OSA. Outcomes included PSG parameters and obstructive apnea hypopnea index (OAHI) during REM and non-REM. Linear multivariable models examined the joint effect of rhinitis and OSA parameters with control for potential confounders. RESULTS: Rhinitis was present in 43% of children with OSA (n = 63) but overall OAHI severity was unaffected by the presence of rhinitis. In contrast, OAHI during REM sleep in children with moderate-severe OSA was significantly increased in subjects with rhinitis and OSA (44.1/hr; SE = 6.4) compared with those with OSA alone (28.2/hr; SE = 3.8). CONCLUSION: Rhinitis is highly prevalent in children with OSA. Although OSA is not more severe in children with rhinitis, they do have a distinct OSA phenotype characterized by more REM-related OSA. Further research is needed to delineate the link between REM-sleep and the physiology of the nose during health and disease. PMID- 29021057 TI - Erratum. PMID- 29021056 TI - Erratum. PMID- 29021058 TI - A randomized trial of mupirocin sinonasal rinses versus saline in surgically recalcitrant staphylococcal chronic rhinosinusitis. PMID- 29021062 TI - Erratum. PMID- 29021063 TI - Erratum. PMID- 29021064 TI - Management of non-invasive rhinosinusitis in the immunosuppressed patient population. PMID- 29021065 TI - Factors Affecting Time to Revision Sinus Surgery for Nasal Polyps: A 25-Year Experience. PMID- 29021066 TI - Histological features of the nasal mucosa in hematopoietic stem cell transplantation. AB - BACKGROUND: Immunosuppression is the leading cause of recurrent sinus infections after hematopoietic stem cell transplant (HSCT), with increased incidence of sinusitis in patients with chronic graft versus host disease (GVHD). Histological descriptions of the oral mucosa, lung ciliary epithelium, and intestinal mucosa related to HSCT have been described. However, few have described the nasal mucosa. We, therefore, sought to elucidate the histological and ultrastructural features of the nasal mucosa in patients after HSCT to better understand the pathophysiology of the immune response. METHODS: Uncinate processes from 24 HSCT patients and 12 immunocompetent patients were subjected to histological analyses via light and transmission electron microscopy (TEM). RESULTS: TEM revealed aberrant cilia structure, altered mitochondria quantity, microvilli, and cytoplasm vacuolization. All HSCT patients with rhinosinusitis had significant loss or absence of cilia (p = 0.018). Apoptotic bodies were increased and Goblet cells decreased in nasal epithelium from patients with chronic GVHD (p = 0.04). CONCLUSION: This tissue destruction likely enhances pathogen penetration resulting in recurrent infection. PMID- 29021067 TI - Spirometric parameters and levels of interferon gamma and IL-5 in induced sputum from patients with allergic rhinitis or asthma. AB - BACKGROUND: This study was designed to analyze spirometric parameters and cytokine (interferon [IFN] gamma and IL-5) levels in induced sputum from patients with asthma or allergic rhinitis (AR) and nonatopic subjects. METHODS: Thirty three subjects aged 18-60 years were enrolled in the present study. Eight patients had asthma without AR symptoms, 16 had AR without asthma symptoms or history, and both groups had positive skin-prick test (SPT) to aeroallergens. The nine remaining subjects were healthy nonatopic subjects with negative SPT to aeroallergens. Spirometry was performed by evaluating the forced vital capacity (FVC), forced expiratory volume in the 1st second (FEV1), and forced expiratory flow between 25 and 75% (FEF25-75) of FVC before and after bronchodilator use. Induced sputum samples were also collected for measuring cytokine (IFN-gamma and IL-5) levels by enzyme-linked immunosorbent assay. RESULTS: Significant pre- and postbronchodilator change was observed only for FEV1 with higher variation values in asthmatic subjects compared with patients with AR (p < 0.05) and nonatopic subjects (p < 0.01). There was no significant difference in pre- and postbronchodilator spirometric parameters among the three groups, although asthmatic patients showed lower prebronchodilator FEF25-75 values (p = 0.065). IL 5 levels were higher in induced sputum from patients with asthma and AR compared with nonatopic subjects (p = 0.020 and p = 0.032, respectively), but IFN-gamma levels showed no significant difference between the groups. CONCLUSION: Spirometric measurements were not able to show any occurrence of bronchial constriction in patients with AR, but predominant IL-5 levels in induced sputum from these patients reinforce the role of Th2-type immune response in lower respiratory airways that could contribute to the concept of "one airway, one disease." PMID- 29021068 TI - Efficacy of intranasal bevacizumab (avastin) treatment in patients with hereditary hemorrhagic telangiectasia-associated epistaxis. PMID- 29021069 TI - Abstracts from the North American Rhinology & Allergy Conference, February 3, 2011, Puerto Rico. AB - INTRODUCTION: To establish the efficacy of bepotastine besilate ophthalmic solution (bepotastine) 1.5%, a dual acting histamine H1 receptor antagonist approved for treatment of ocular itching associated with allergic conjunctivitis, compared to placebo in relieving ocular itching and redness for subjects with active allergic rhinoconjunctivitis. METHODS: A randomized, double-masked, placebo-controlled, confirmatory natural exposure study of bepotastine 1.5% and placebo was conducted during allergy season at 12 clinical sites throughout the U.S. Following a 7-day screening period, eligible subjects >=12 years old were assigned in a 1:1 ratio to dosing OU b.i.d. either bepotastine 1.5% (n = 123) or placebo (n = 122). Subjects recorded instantaneous grades for their ocular symptoms prior to their next dose for 14 consecutive days. Clinically significant reduction in ocular sign or symptom grades between treatment groups required p <= 0.05 as determined by ANCOVA analysis. RESULTS: Significant clinical effectiveness with bepotastine 1.5% was demonstrated over the 2-week treatment period in comparison to placebo in the intent-to-treat population for reducing mean instantaneous grades for both ocular itching (p = 0.007) and redness (p = 0.001). Investigator rating of efficacy over the 2-week treatment period across response categories was also superior for bepotastine 1.5% compared to placebo (p = 0.024). Only one subject discontinued participation in the study due to an adverse event. CONCLUSIONS: These data support bepotastine 1.5% as an effective treatment for allergen-induced signs and symptoms in a clinical study designed to closely resemble the conditions under which patients with allergic rhinoconjunctivitis would require treatment. PMID- 29021070 TI - Treatment of Postviral Olfactory Loss with Glococorticoids, Ginko biloba, and Mometasone Nasal Spray. PMID- 29021071 TI - Manuka honey: Histological effect on respiratory mucosa. PMID- 29021072 TI - The interaction between bacteria and mucosal immunity in chronic rhinosinusitis: A prospective cross-sectional analysis. AB - BACKGROUND: We have detected intramucosal bacteria within the sinus mucosa of patients with chronic rhinosinusitis (CRS), but our attempts at characterizing these did not yield any discernible genotypic or phenotypic differences from surface bacteria. We hypothesized that the presence of intramucosal microcolonies reflected host mucosal immune dysfunction. This study characterizes the activation status of T cells, B cells, and macrophages in the sinus mucosa of patients with CRS and controls and determines the impact of bacteria on mucosal immunology. METHODS: Swabs and mucosal biopsy specimens were taken from 27 patients with CRS undergoing sinus surgery and 9 patients with normal sinuses having transnasal pituitary surgery. Microcolonies were detected using Gram staining, and the immune cells were characterized by immunohistochemical techniques. RESULTS: Swab culture rates for Staphylococcus aureus were similar between CRS and controls. However, there were significantly more intramucosal microcolonies in CRS (59% versus 11%) than in controls (p = 0.02). There were significantly more immune cells in CRS. Percentage of activated T and B cells were similar between CRS and controls, but there were significantly more CD163+ M2 macrophages in patients with CRS (p = 0.0004). Furthermore, percentage of CD163+ macrophages showed a positive correlation with disease severity. The presence of bacteria had no impact on immunology or disease severity. CONCLUSION: Tolerance of intramucosal microcolonies in CRS may reflect altered macrophage function in the host mucosa. The clinical severity of CRS is also dependent on the host mucosa immune dysfunction, rather than the presence of intramucosal microcolonies. PMID- 29021073 TI - Increased body mass index and bronchial impairment in allergic rhinitis. AB - BACKGROUND: Several studies have outlined a possible relationship between an increased body mass index (BMI) and respiratory allergic diseases, such as asthma and allergic rhinitis (AR). The aim of this study was to analyze the relationship among BMI, spirometry, bronchial hyperreactivity (BHR), and fractional concentration of exhaled nitric oxide (FeNO) in a cohort of AR patients. METHODS: The study included 155 patients with persistent AR alone and 155 healthy controls. All subjects were evaluated performing skin-prick test, spirometry, bronchoprovocation test with methacholine, and FeNO measurement. RESULTS: BMI values were significantly higher in AR patients than in control subjects (p = 0.038). Overweight/obese AR patients had more altered functional and inflammatory parameters than normal weight patients. BMI > 25 is a risk factor for (i) early bronchial airflow limitation (odds ratio [OR], 3.81), (ii) high FeNO values (OR, 1.96), and BHR (OR, 3.29). CONCLUSIONS: The present study may suggest that BMI assessment should be routinely considered in AR patients for assessing risk for early bronchial impairment, such as suggesting possible evolution to asthma. PMID- 29021075 TI - Rhinogenic Laryngitis, Cough, and the Unified Airway. PMID- 29021074 TI - Editorial. PMID- 29021076 TI - Erratum. PMID- 29021077 TI - Survival outcomes in acute invasive fungal sinusitis: A systematic review and quantitative synthesis of published evidence. PMID- 29021078 TI - Sexual (dys)functioning is related to drive for thinness, not drive for muscularity. AB - : Background Negative body image can result in sexual dysfunction for both women and men. Drive for thinness, drive for muscularity and drive for leanness have all been associated with poor body image. However, research to date has not examined which is the strongest predictor of sexual problems in each gender. METHODS: The present study used measures of drive for muscularity and drive for thinness simultaneously to predict sexual functioning in both genders. Participants (n=519) completed measures of drive for thinness, drive for muscularity, sexual esteem, sexual assertiveness, discomfort exposing their bodies during sex and genital satisfaction. The interaction between drive for thinness and drive for muscularity was used to approximate drive for leanness. RESULTS: Drive for thinness, not drive for muscularity (or any combination of the two), predicted men's and women's sexual problems. CONCLUSIONS: We add to the growing body of literature on the destructive nature of excessive drive for thinness, and highlight that it may be a core factor in promoting and maintaining men's (as well as women's) sexual problems. PMID- 29021079 TI - Blood-borne virus transmission in an urban, culturally diverse neighbourhood: results from a cross-sectional bio-behavioural survey using innovative outreach methods in a hard-to-reach population. AB - : Background Following a HIV outbreak among Aboriginal people in a culturally diverse inner-city suburb of Melbourne, a blood-borne virus (BBV) screening program was conducted to inform public health interventions to prevent transmission and facilitate timely diagnosis and linkage to care. METHODS: In August-September 2014, community health workers recruited people who inject drugs (PWID) from a local needle and syringe program. Participants were tested for hepatitis C virus (HCV), hepatitis B virus (HBV), HIV and syphilis and completed a bio-behavioural questionnaire. RESULTS: In total, 128 PWID participated in the study. Serological evidence of exposure to HCV and HBV was detected among 118 (93%) and 57 participants (45%) respectively. Five participants were HIV positive. Independent risk factors for needle sharing were Aboriginality (AOR=6.21, P<0.001), attending health care for mental health problems (AOR=2.79, P=0.023) and inability to access drug treatment in the previous 6 months (AOR=4.34, P=0.023). CONCLUSIONS: BBV prevalence in this sample was much higher than reported in other recent Australian studies. This local population is at high risk of further BBV transmission, particularly Aboriginal PWID. Individual and service-related factors associated with risk in the context of a dynamic urban drug culture and HIV outbreak suggest an urgent need for tailored harm reduction measures. PMID- 29021080 TI - Substantial increase in yield of Neisseria gonorrhoeae testing 2008-2013 at a Sydney metropolitan sexual health clinic: an observational study. AB - : Background A substantial increase in gonorrhoea notifications in New South Wales has been observed in recent years. METHODS: We assessed yield of testing and characteristics of those diagnosed with gonorrhoea from January 2008 to December 2013 at RPA Sexual Health in the inner-west of Sydney. Yield was defined as the proportion of testing occasions which were positive for gonorrhoea. Generalised estimating equations were used to calculate trends in yield over time. RESULTS: During the 6-year study period, 6456 individuals (4308 males, 2124 females, 24 transgender individuals) were tested on 12799 occasions; this included 2441 gay and bisexual men (GBM) who were tested on 6945 occasions. Over the study period there was a significant increase in testing at genital, anorectal and pharyngeal sites (P-trend <0.001 for all). In total, gonorrhoea was detected on 668 testing occasions among 536 individuals (5.2%). Overall, 254/12765 (2.0%) of genital tests, 251/7326 (3.4%) of anorectal tests and 342/8252 (4.1%) of pharyngeal tests were positive. There was a significant increase in overall gonorrhoea yield from 2.2% in 2008 to 7.1% in 2013 (P-trend <0.001). This temporal increase in gonorrhoea yield was observed in heterosexual males (P<0.001), heterosexual females (P-trend=0.008), female sex workers (P trend=0.006), HIV-positive GBM and HIV-negative GBM (both P<0.001) and at all anatomical sites (P-trend <0.001 for all). CONCLUSIONS: From 2008 to 2013, we observed a greater than threefold increase in yield of gonorrhoea testing disproportionately affecting GBM, although the increase also occurred in other subpopulations and at all anatomic sites. More frequent and comprehensive testing could potentially reduce the high and increasing community prevalence of gonorrhoea. PMID- 29021081 TI - Room at the top. AB - Five years after eLife published its first papers, we reflect on our consultative approach to peer review, the challenges of reproducibility, and the need to reform how published research is assessed. PMID- 29021082 TI - Habitat associations of an expanding native alga. AB - There are many examples of native macrophytes becoming locally dominant and spreading outside their traditional distributions, but the causes and impacts are often not understood. In New South Wales, Australia, the green alga Caulerpa filiformis is undergoing a range expansion and has transitioned from a subdominant to a dominant alga on several rocky shores around the Sydney coastline. Here we investigated relationships between established patches of C. filiformis, the habitat it occupies and associated algal communities at multiple subtidal sites over the green alga's 700 km range. We tested the following predictions: 1) C. filiformis cover differs among substrata, being greatest on turf-forming algae; 2) C. filiformis cover is positively related to environmental variables linked to increased sedimentation (e.g. reduced reef width, surface slope, increased rugosity and distance from shore); 3) occurrence of C. filiformis is associated with a change in macrophyte community structure and a reduction of macrophyte richness; 4) intact native algal canopies inhibit C. filiformis spread, but turf-forming algae and bare sand are susceptible to invasion. Substratum associations were highly consistent among sites, but contrary to our prediction, C. filiformis was most commonly associated with rock or rock + sand substratum and less frequently associated with turf-forming algae substratum. C. filiformis cover was negatively correlated with reef width, which explained most of the variation observed, although local scale variables distance from shore, reef slope, and water depth were also correlated with C. filiformis cover. Algal diversity and community composition typically differed in the presence of C. filiformis, often with a reduction of algal abundances, in particular Sargassum spp., although results varied among substrata and sites. However, monitoring of borders suggested that C. filiformis does not invade and outcompete undisturbed adjacent canopy-forming algae over a 12 month period. Our results suggest that disturbance processes (possibly linked to sedimentation) acting at the site and quadrat scale are likely important determinants of C. filiformis cover and spread, and hence its potential ecological impacts. PMID- 29021083 TI - Fertility-preserving surgery for advanced stage ovarian germ cell tumors. AB - OBJECTIVE: To evaluate the prevalence and safety of uterine preservation among premenopausal women diagnosed with a malignant ovarian germ-cell tumor (MOGCT) of advanced stage (stage II-IV). MATERIALS AND METHODS: The National Cancer Database was accessed and a cohort of women aged <40years, diagnosed with a MOGCT were identified. Those with stage II-IV disease who underwent cancer-directed surgery and received chemotherapy were selected for further analysis. Performance of hysterectomy was assessed from site-specific surgery codes. Overall survival (OS) was determined following generation of Kaplan-Meier curves and compared with the log-rank test. A Cox multivariate model was constructed to control for possible confounders. RESULTS: A total of 526 eligible patients were identified; rate of hysterectomy was 20.2%. Women who had a hysterectomy were older (median age 30.5 vs 20years, p<0.001) and more likely to present with bilateral tumors (12.6% vs 3.8%, p<0.001). No differences were noted based on tumor histology (p=0.67). Rate of uterine preservation was 82.8%, 79.5% and 75% for those with stage II, III and IV disease respectively (p=0.46). There was no difference in OS between women who had hysterectomy and those who did not (p=0.051); five-year OS rates were 87.1% and 94.4% respectively. After controlling for disease stage, tumor histology and patient race, uterine preservation was not associated with a decreased survival (HR: 0.59, 95% CI: 0.28, 1.24, p=0.19). CONCLUSIONS: Uterine preservation was not associated with decreased survival and should be considered in women with advanced stage GCTs interested in future fertility. PMID- 29021084 TI - Association between Epstein-Barr virus (EBV) and cervical carcinoma: A meta analysis. AB - OBJECTIVES: Human papillomavirus (HPV) has been implicated as a major factor in cervical carcinogenesis. However, many pieces of evidence gathered over the last two decades suggest Epstein-Barr virus (EBV) plays a secondary role in this process. The purpose of the present meta-analysis was to determine whether the presence of EBV infection increases the risk of cervical carcinoma. METHODS: Based on 25 articles, the analysis yielded a 33.44% overall pooled prevalence of EBV. RESULTS: The pooled prevalence was higher in patients with carcinoma (43.63%) than in healthy patients (19.0%) or patients with cervical intraepithelial neoplasia 1 (CIN1) (27.34%) or CIN2/3 (34.67%). Co-infection with EBV and HPV displayed a similar pattern. EBV infection was significantly and positively associated with lesion grade in cervical epithelia and was more prevalent in malignant lesions. Moreover, cervical carcinoma occurred four times as often among EBV positive women as in women without EBV infection (OR=4.01 [1.87-8.58]; p<0.001). CONCLUSIONS: The existence of EBV(+)HPV(-) carcinomas, the confirmed expression of latent oncoproteins (EBNA1, EBNA2, LMP1) and EBERs in tumor cells, and the association of EBV with the integration of high-risk-HPV DNA in malignant specimens point to EBV as a co-factor (so far underestimated) in the genesis and/or progression of cervical carcinoma. However, further studies are necessary before the link between EBV and cervical carcinoma can be established. PMID- 29021085 TI - Fast in situ gamma spectroscopy using hand-held spectrometer with NaI probe. AB - In this work a hand-held spectrometer InSpector 1000 with NaI (Tl) 2" x 2" detector has been adapted to fast in situ gamma-ray spectroscopy. Two specially designed mounting stands with shielding have been built, allowing conducting measurements in different geometries. Three particular geometries (NW, IS50, IS00) have been chosen for efficiency calibration and further study. The first one (NW) is intended for small environmental samples (volume ca 140 cm3) collected on site. IS50 geometry is a typical in situ geometry meant for radioactivity measurements in soil with detector pointed towards the ground. In this geometry the probe is shielded and mounted 50 cm above the soil surface. The new proposed geometry IS00 is designed in the way that the detector is inserted directly into the soil in order to increase the counting efficiency. The methods of efficiency calibration involved using calibration standards (in NW geometry) and the results obtained in previous in situ measurements with InSpector 2000 portable spectrometer with HPGe detector and ISOCSTM Shield Systems, which is routinely used in environmental measurements. NW geometry turned out to be useful for natural radioisotopes concentrations (K-40, U-238 and Th-232), which significantly exceed typical values of those concentrations observed in Poland. Both IS50 and IS00 geometries are applicative for quick (2 h long measurement) evaluation of typical concentrations of K, U and Th in soils. The newly proposed geometry IS00 is superior as it showed lower detection limits and uncertainties as well as its handling was far easier than of IS50. Authors have proven that hand-held spectrometer InSpector 1000, together with mounting stands and shielding, can be successfully used for fast in situ gamma-spectroscopy. Its relatively small weight and good mobility are additional assets. Moreover, detailed procedures for measurements in each geometry have been developed to conduct such analyses properly. PMID- 29021086 TI - Genomic characterization of an extensively drug-resistant KPC-2-producing Klebsiella pneumoniae ST855 (CC258) only susceptible to ceftazidime-avibactam isolated in Brazil. AB - In this study, we describe the genetic features of an XDR KPC-2-producing Klebsiella pneumoniae isolate by using whole-genome sequencing, its clinical epidemiological context and susceptibility against antimicrobial combinations. The isolate belongs to clonal complex 258 and harbors several acquired genes and mutations associated with antimicrobial resistance. PMID- 29021087 TI - Evaluation of OneStep Dengue NS1 RapiDipTM InstaTest and OneStep Dengue Fever IgG/IgM RapiCardTM InstaTest during the course of a dengue type 1 epidemic. AB - We determined the diagnostic performance of the OneStep NS1 and the OneStep IgG/IgM RDT kits against a panel of samples which comprised of 174 dengue positive and 165 dengue negative sera characterized by three reference enzyme linked immunosorbent assays (ELISAs). The diagnostic sensitivities of the OneStep kits for the detection of individual biomarkers of NS1, IgM and IgG were 90% (95% CI: 82.1-94.7), 32.4% (95% CI: 24.8-40.8) and 44.4% (95% CI: 38.2-50.7), respectively. The combination of the OneStep IgG/IgM kit with the OneStep NS1 kit demonstrated significantly higher sensitivities for the combined NS1/IgM (96.8%; 95% CI: 90.9-99.3) and NS1/IgM/IgG (99.5%; 95% CI: 97.1-99.9)(P<0.001). In conclusion, the OneStep NS1 kit has high sensitivity and specificity and is highly recommended for use. The low sensitivities for IgG (44.4%) and for IgM (32.4%) of the OneStep IgG/IgM kit when used alone suggest it is best used in combination with the OneStep NS1 kit to enhance its overall diagnostic performance. PMID- 29021088 TI - The impact of strain-specific immunity on Lyme disease incidence is spatially heterogeneous. AB - Lyme disease, caused by the bacterium Borrelia burgdorferi, is the most common tick-borne infection in the US. Recent studies have demonstrated that the incidence of human Lyme disease would have been even greater were it not for the presence of strain-specific immunity, which protects previously infected patients against subsequent infections by the same B. burgdorferi strain. Here, spatial heterogeneity is incorporated into epidemiological models to accurately estimate the impact of strain-specific immunity on human Lyme disease incidence. The estimated reduction in the number of Lyme disease cases is greater in epidemiologic models that explicitly include the spatial distribution of Lyme disease cases reported at the county level than those that utilize nationwide data. strain-specific immunity has the greatest epidemiologic impact in geographic areas with the highest Lyme disease incidence due to the greater proportion of people that have been previously infected and have developed strain specific immunity. PMID- 29021089 TI - Patellofemoral arthritis treated with resurfacing implant: Clinical outcome and complications at a minimum two-year follow-up. AB - BACKGROUND: This study evaluated the clinical and radiographic outcomes of a series of patients treated with an anatomic inlay resurfacing implant, with a minimum two-year follow-up. METHODS: Fifteen patients underwent patellofemoral resurfacing procedures using a HemiCAP Wave Patellofemoral Inlay Resurfacing implant from 2010 to 2013. Clinical outcomes included: Visual Analog Scale (VAS), Lysholm score, Knee Society Score (KSS), and evaluation of Kujala, and Hospital for Special Surgery Patellofemoral score (HSS-PF). The postoperative complications were analyzed. RESULTS: Nineteen knees were evaluated; the average follow-up was 35.2months. Fourteen were women, with an average age of 54years. The pre-operative/postoperative clinical results presented a significant improvement: VAS 8/2.5, Lysholm 31.9/85.8, KSS 39.8/82.5, Kujala 32.1/79.3 and Hospital for Special Surgery Patellofemoral score (HSS-PF) 15.9/90.6. A total of 87% of patients were either satisfied or very satisfied with the overall outcome. There were no radiographic signs of loosening. Seven postoperative complications were recorded: two presented ongoing knee pain, one postoperative stiffness, one patellar bounce due to maltracking, two ilio-tibial band syndrome, and one tibial anterior tuberosity osteotomy nonunion. Two patients underwent a total knee arthroplasty conversion and were considered a failure. None of these complications were implant related. CONCLUSIONS: Patellofemoral inlay resurfacing for isolated patellofemoral arthritis was an effective and safe procedure with high levels of patient satisfaction. No mechanical implant failure was seen at a minimum two-year follow-up. This implant design appeared to be an alternative to the traditional patellofemoral prostheses. Concomitant osteochondral lesions, patellofemoral dysplasia or patellar maltracking might be poor prognostic factors for this type of implant. PMID- 29021090 TI - RBBB tachycardia with north-west axis. What is the mechanism? AB - RBBB tachycardia with NW axis is considered to be VT unless proved otherwise. However underlying conduction system disease can produce electrocardiographic patterns suggestive of bundle branch block with extreme left axis which can cause difficulty in differentiating VT from SVT as in this case. PMID- 29021092 TI - T-cells and their cytokine production: The anti-inflammatory and immunosuppressive effects of strenuous exercise. AB - Strenuous exercise bouts and heavy training are associated with a heightened anti inflammatory state and a transient suppression of several immune components. In turn, many athletes are susceptible to illness, particularly upper respiratory symptoms (e.g. cough, sore throat, running nose). T-lymphocytes (T-cells) are important for orchestrating the immune response and can be categorised into subsets according to their phenotypical characteristics resulting from polarisation (i.e. type-1, type-2 and regulatory T-cells). Each T-cell subset has a unique functional role, including their capacity to produce pro- and anti inflammatory cytokines in response to an immune challenge. Prolonged and exhaustive exercise typically reduces peripheral blood type-1 T-cell number and their capacity to produce the pro-inflammatory cytokine, interferon-gamma. Moreover, heavy training loads are associated with elevated numbers of resting peripheral blood type-2 and regulatory T-cells, which characteristically produce the anti-inflammatory cytokines, interleukin-4 and interleukin-10, respectively. This appears to increase the risk of upper respiratory symptoms, potentially due to the cross-regulatory effect of interleukin-4 on interferon-gamma production and immunosuppressive action of IL-10. Catecholamines significantly influence the number of peripheral blood T-cells in response to exercise. Whereas, glucocorticoids and prostaglandin E2 promote the production of anti-inflammatory cytokines by T-cells. In summary, strenuous exercise bouts and heavy training shifts T-cell immunity towards an anti-inflammatory state. This impairs the ability of the immune system to mount an inflammatory response to an immune challenge, which may weaken defences against intracellular pathogens (e.g. viruses), and increase the risk of infection and viral reactivation. PMID- 29021091 TI - An evaluation of multiple algorithms for the measurement of the heart rate corrected JTpeak interval. AB - Interest in the effects of drugs on the heart rate-corrected JTpeak (JTpc) interval from the body-surface ECG has spawned an increasing number of scientific investigations in the field of regulatory sciences, and more specifically in the context of the Comprehensive in vitro Proarrhythmia Assay (CiPA) initiative. We conducted a novel initiative to evaluate the role of automatic JTpc measurement technologies by comparing their ability to distinguish multi- from single-channel blocking drugs. A set of 5232 ECGs was shared by the FDA (through the Telemetric and Holter ECG Warehouse) with 3 ECG device companies (AMPS, Mortara, and Philips). We evaluated the differences in drug-concentration effects on these measurements between the commercial and the FDA technologies. We provide a description of the drug-induced placebo-corrected changes from baseline for dofetilide, quinidine, ranolazine, and verapamil, and discuss the various differences across all technologies. The results revealed only small differences between measurement technologies evaluated in this study. It also confirms that, in this dataset, the JTpc interval distinguishes between multi- and single channel (hERG) blocking drugs when evaluating the effects of dofetilide, quinidine, ranolazine, and verapamil. However, in the case of quinidine and dofetilide, we noticed a poor consistency across technologies because of the lack of standard definitions for the location of the peak of the T-wave (T-apex) when the T-wave morphology is abnormal. PMID- 29021093 TI - Disseminated cryptococcosis in a patient taking tocilizumab for Castleman's disease. AB - Infections occur more frequently in patients receiving biologics. However, cryptococcal infection is uncommon in patients receiving tocilizumab, an interleukin-6 inhibitor, in contrast to patients receiving tumor necrosis factor alpha inhibitors. In this report, we describe a case of disseminated cryptococcosis in a 55-year-old man who was receiving tocilizumab every 2 weeks along with daily prednisolone and cyclosporine for Castleman's disease. He initially developed cellulitis on both upper limbs, and his condition worsened despite antibacterial therapy. Chest X-ray scanning and computed tomography demonstrated bilateral pulmonary infiltration. Cryptococcus neoformans was detected in blood, skin, and sputum cultures. He was diagnosed with disseminated cryptococcosis, and successfully treated with liposomal amphotericin B for a week followed by oral fluconazole for 11 months. The findings of this study indicate that cryptococcosis should be considered during the differential diagnosis of infection in patients receiving tocilizumab, especially in the presence of other risk factors for infections or a short tocilizumab dosing interval. PMID- 29021094 TI - Socio-demographic, lifestyle, and dietary determinants of essential and possibly essential trace element levels in adipose tissue from an adult cohort. AB - There is increasing evidence linking levels of trace elements (TEs) in adipose tissue with certain chronic conditions (e.g., diabetes or obesity). The objectives of this study were to assess concentrations of a selection of nine essential and possibly-essential TEs in adipose tissue samples from an adult cohort and to explore their socio-demographic, dietary, and lifestyle determinants. Adipose tissue samples were intraoperatively collected from 226 volunteers recruited in two public hospitals from Granada province. Trace elements (Co, Cr, Cu, Fe, Mn, Mo, Se, V, and Zn) were analyzed in adipose tissue by high-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS). Data were collected on socio-demographic characteristics, lifestyle, diet, and health status by face-to-face interview. Predictors of TE concentrations were assessed by using multivariable linear and logistic regression. All TEs were detected in all samples with the exception of Se (53.50%). Iron, zinc, and copper showed the highest concentrations (42.60 mg/kg, 9.80 mg/kg, and 0.68 mg/kg, respectively). Diet was the main predictor of Cr, Fe, Mo, and Se concentrations. Body mass index was negatively associated with all TEs (beta coefficients = -0.018 to -0.593, p = 0.001-0.090) except for Mn and V. Age showed a borderline-significant positive correlation with Cu (beta = 0.004, p = 0.089). Residence in a rural or semi-rural area was associated with increased Co, Cr, Fe, Mo, Mn, V and Zn concentrations and with beta coefficients ranging from 0.196 to 0.544 (p < 0.05). Furthermore, individuals with higher educational level showed increased Cr, Co, Fe and V concentrations (beta coefficients = 0.276-0.368, p = 0.022-0.071). This is the first report on the distribution of these TEs in adipose tissue and on their determinants in a human cohort and might serve as an initial step in the elucidation of their clinical relevance. PMID- 29021095 TI - The role of wind field induced flow velocities in destratification and hypoxia reduction at Meiling Bay of large shallow Lake Taihu, China. AB - : Wind induced flow velocity patterns and associated thermal destratification can drive to hypoxia reduction in large shallow lakes. The effects of wind induced hydrodynamic changes on destratification and hypoxia reduction were investigated at the Meiling bay (N 31 degrees 22' 56.4", E 120 degrees 9' 38.3") of Lake Taihu, China. Vertical flow velocity profile analysis showed surface flow velocities consistency with the wind field and lower flow velocity profiles were also consistent (but with delay response time) when the wind speed was higher than 6.2 m/s. Wind field and temperature found the control parameters for hypoxia reduction and for water quality conditions at the surface and bottom profiles of lake. The critical temperature for hypoxia reduction at the surface and the bottom profile was <=24.1C degrees (below which hypoxic conditions were found reduced). Strong prevailing wind field (onshore wind directions ESE, SE, SSE and E, wind speed ranges of 2.4-9.1 m/s) reduced the temperature (22C degrees to 24.1C degrees ) caused reduction of hypoxia at the near surface with a rise in water levels whereas, low to medium prevailing wind field did not supported destratification which increased temperature resulting in increased hypoxia. Non prevailing wind directions (offshore) were not found supportive for the reduction of hypoxia in study area due to less variable wind field. Daytime wind field found more variable (as compared to night time) which increased the thermal destratification during daytime and found supportive for destratification and hypoxia reduction. The second order exponential correlation found between surface temperature and Chlorophyll-a (R2: 0.2858, Adjusted R-square: 0.2144 RMSE: 4.395), Dissolved Oxygen (R2: 0.596, Adjusted R-square: 0.5942, RMSE: 0.3042) concentrations. The findings of the present study reveal the driving mechanism of wind induced thermal destratification and hypoxic conditions, which may further help to evaluate the wind role in eutrophication process and algal blooms formation in shallow water environments. OUTCOME: Wind field is the key control factor for thermal destratification and hypoxia reduction. 24.1C degrees is the critical/threshold temperature for hypoxia, Chlorophyll-a and NH3-N concentrations of the shallow freshwater lake. PMID- 29021096 TI - Occurrence, sources and transport of antibiotics in the surface water of coral reef regions in the South China Sea: Potential risk to coral growth. AB - Laboratory research has indicated that antibiotics had negative effects on coral growth by disturbing natural microbiota; however, no field studies have reported antibiotic contamination levels and their influence on coral growth in natural coral reef regions (CRRs). This study investigated antibiotic occurrence and sources in the surface water from CRRs that have suffered from rapid coral degradation and evaluated their risk to coral growth. These regions are in the South China Sea, including four coastal and two offshore CRRs. The results show that 13 antibiotics were detected in the coastal CRRs with concentrations ranging from 10-2-100 ng L-1, while 5 antibiotics occurred in offshore CRRs (300-950 km from the mainland), with concentrations ranging from 10-2 to 10-1 ng L-1. Their concentrations decreased gradually from the coast to offshore in the transport process. However, Yongxing Island, which is approximately 300 km from the mainland, was an exception with relatively higher concentrations than the surrounding reefs because of the ever-increasing human activity on the island. The presence of anthropogenic contaminants antibiotics in CRRs may be a potential risk to coral growth. PMID- 29021097 TI - Durable superhydrophobic and superamphiphobic polymeric surfaces and their applications: A review. AB - Wetting control is essential for many applications, such as self-cleaning, anti icing, anti-fogging, antibacterial action as well as anti-reflection and friction control. While significant effort has been devoted to fabricate superhydrophobic/superamphiphobic surfaces (repellent to water and other low surface tension liquids), very few polymeric superhydrophobic/superamphiphobic surfaces can be considered as durable against various externally imposed stresses (e.g. application of heating, pressure, mechanical forces, chemical, etc.). Therefore, durability tests are extremely important for applications especially when such surfaces are made of "soft" materials. Here, we review the most recent and promising efforts reported towards the realization of durable, superhydrophobic/superamphiphobic, polymeric surfaces emphasizing the durability tests performed, and some important applications. We compare and put in context the scattered durability tests reported in the literature, and present conclusions, perspectives and challenges in the field. PMID- 29021098 TI - Discussion of: "The hypercoagulability paradox of chronic kidney disease: The role of fibrinogen". PMID- 29021099 TI - Discussion of: "Targeting resuscitation to normalization of coagulating status: Hyper and hypocoagulability after severe injury are both associated with increased mortality". PMID- 29021100 TI - The value of endomyocardial biopsy in diagnosis and guiding therapy. AB - Endomyocardial biopsy (EMB) is a highly-specialised procedure that is associated with some controversy as to its diagnostic role due to its inconsistency in diagnosing a wide variety of cardiac diseases. Given the advances and sophistication in echocardiography and cardiac magnetic resonance imaging (MRI), the vast majority of cardiac diseases can be diagnosed by these non-invasive procedures. Under-sampling and the fact that biopsy site is limited to the right side of the interventricular septum further limits its value. In spite of all these limitations, there still remains a group of pathological conditions that require biopsy for a conclusive diagnosis such as myocarditis, amyloidosis, sarcoidosis and giant cell myocarditis. Correct patient selection and the quantity of tissue samples impart a significant influence on the accuracy of the diagnosis, and thus the value of EMB is variable for each patient. The purpose of this study was to evaluate the role of EMB in patient care, through its ability to either change clinical diagnosis or alter patient management. Our study was based in a single teaching centre. An audit of cardiac biopsies performed over a 10 year period identified 250 patients. We assessed indications, histology, electron microscopic findings, final clinical diagnosis and how they influenced patient management. A definite diagnosis on histology was given in 44 of 250 patients (17.6%). Non-specific findings were observed in the remaining 206 patients (82.4%). Histology influenced patient management in 73 (29.2%) patients. Histological examination in the remaining 177 biopsies (70.8%) did not provide a definite diagnosis or influence patient management. It was additionally found that the number of tissue fragments sampled has significant impact on diagnostic accuracy. A more accurate diagnosis of 45% was obtained when >=5 fragments were sampled, as compared to 1-3 fragments where accuracy dropped to 20%. Our study indicated that sampling for electron microscopy has very limited value. We found that of 245 biopsies sampled for electron microscopy, only three biopsies (1.2%) had diagnostically useful findings. In our institution procedure related complications were observed in 7 of 250 patients (2.8%). The diagnostic value of EMB is important but limited. Strict triaging of patients according to clinical suspicion and adequate sampling of tissue may increase useful diagnostic information. PMID- 29021101 TI - Comparison between the patients with surgery and without surgery after recommendation of surgical repair for symptomatic rotator cuff tear. AB - PURPOSE: Symptomatic full-thickness rotator cuff (RC) tears are often recommended for surgical repairs. However, some patients decide not to have surgery. The aim of this study was to see if there was any difference in preoperative variables between the two groups. METHODS: 137 consecutive patients recommended for surgery due to symptomatic full-thickness RC tear were evaluated. At mean 58.1 months after surgery-recommendation, the patients were asked whether they had surgery and their clinical outcome was assessed. Variables at the time of surgery recommendation including demographics, range-of-motion (ROM), tear size, and fatty infiltration on MRI, and clinical score were compared between the two groups. RESULTS: The 59 men and 78 women had a mean age of 64.4 years. Overall, 104 (75.9%) patients were treated with RC repair and 33 (24.1%) were not. The main three reasons for not having surgery were improvement of symptoms or minimal pain (55%), economic burden (12%), and concern for postoperative long rehabilitation (9%). Demography and ROM measured at the time of surgery recommendation did not differ. All clinical scores at one year and final follow up survey showed no difference between the two groups. The Constant and UCLA scores at the time of surgery-recommendation were significantly higher and tear size was smaller in the 'No-surgery' group. Fatty infiltration of supraspinatus (2.0 versus 1.2, p < 0.001) and global fatty degeneration index (1.4 versus 0.8, p = 0.011) were statistically lower in 'No-surgery' group as well. CONCLUSION: Patients with relatively preserved function and small size tear tend to select non-surgical treatment and lead to relatively good outcome. PMID- 29021102 TI - Predictors of the clinical outcome and survival without degenerative arthritis after surgical treatment of femoroacetabular impingement. AB - BACKGROUND: The main purposes of the present study were to evaluate the functional improvement, to identify the predictors of the clinical outcome after open surgical management of femoroacetabular impingement (FAI) in mid-term, and to determine 5-year survival rate. METHODS: In this retrospective study, the clinical data of 33 patients (34 hips) were evaluated. Sex, age, body mass index (BMI), type of FAI, duration of symptoms up to surgical treatment, internal rotation of the affected hip, improvement of the Harris hip score (HHS) in the first 2 years, joint space narrowing evaluated radiographically and classified according to Kellgren-Lawrence classification, and any labral tear were the independent variables. Harris hip score and degenerative arthritic changes at the latest follow-up were identified as outcome measures. Univariate and multivariate analyses were performed. The mean post-operative follow-up was 6 years. RESULTS: Harris hip scores at the latest follow-up were significantly worse in patients with a pre-operative age >35 years, BMI >=25 kg/m2, internal rotation of the hip <=10 degrees , grade 1 or 2 joint space narrowing, labral tear, and <15 points improvement of the HHS at the first 2 years follow-up. According to multivariate analysis; major predictors of the outcome were BMI, labral tear, and improvement of the HHS at the first 2 years. CONCLUSIONS: A pre-operative BMI >=25 kg/m2, labral tear, and <20 points improvement of the HHS in the first 2 years of surgery should be considered as the major predictors of the clinical outcome after open surgical management of idiopathic FAI. PMID- 29021103 TI - Retrospective analysis of relapsed abdominal high-risk neuroblastoma. AB - BACKGROUND/PURPOSE: The impact of abdominal topography and surgical technique on resectability and local relapse pattern of relapsed abdominal high-risk neuroblastoma (R-HR-NB) is not clearly defined. METHODS: A sample of thirty-nine patients with R-HR-NB enrolled in the German neuroblastoma trials between 2001 and 2010 was analyzed retrospectively using surgical and imaging reports. We evaluated resectability and local relapse pattern within 6 standardized abdominal regions, impact of extent of the first resective surgery on overall survival (OS), and of number of operations and a higher cumulative surgical assessment score (C-SAS) on OS after the first event. RESULTS: In the left upper abdomen, rates for tumor persistence and relapse were 45.9% and 13.5% and in the left lower abdomen 27.7% and 8.3%, respectively. OS in months did not differ between complete and incomplete first resections (median (interquartile range): 35 (45.6) vs. 40 (65.4), P=.649). Better OS after the first event was associated with repeated as compared to single surgery (47.7 (64.7) vs. 4.3 (12.5), P=.000), and with higher as compared to lower C-SAS (47.7 (64.3) vs. 7.6 (14.7), P=.002). CONCLUSIONS: OS after relapse/progression was not dependent on the extent of first resection. The number of operations was associated with better outcome after event. TYPE OF STUDY: Treatment study. LEVEL OF EVIDENCE: LEVEL III Retrospective comparative study. PMID- 29021104 TI - Did Liszt have chronic pulmonary thromboembolism? PMID- 29021105 TI - Invasive pneumococcal pneumonia caused by 13-valent pneumococcal conjugate vaccine types in children with different schedules. AB - BACKGROUND: In Taiwan, the age group with the greatest incidence of invasive pneumococcal disease is 2-5 years of age, which is different from other countries. This study was conducted to identify risk factors and different 13 valent pneumococcal conjugate vaccine (PCV13) schedules associated with vaccine type invasive pneumococcal pneumonia (IPP) despite prior vaccination. METHODS: A case-control study was conducted prospectively between August 2012 and December 2015 at five participating medical centers. The study enrolled children <15 years of age who were admitted to one of the five medical centers for CAP. Blood samples and acute-phase serum specimens were collected and Streptococcus pneumoniae was identified by using a real-time polymerase-chain-reaction (RT-PCR) assay targeting the lytA gene. RESULTS: A total of 25 children diagnosed with vaccine-type IPP and 124 controls were enrolled. Vaccine-type IPP occurred in 6 (28.6%), 14 (24.1%), and 5 (7.1%) children receiving vaccines on a not-age appropriate schedule (n = 21), primary infant schedule (n = 58), and toddler catch-up schedule (n = 70) (P = 0.008), respectively. Of 25 children, the mean age at disease onset was 36 +/- 11 months; serotype 19A was responsible for 84% (21/25). CONCLUSION: After adjustment for confounding factors, the risk of vaccine-type IPP was significantly higher among children receiving vaccines on a not-age-appropriate schedule, or on a primary infant schedule, compared with children receiving vaccines on a toddler catch-up schedule. Duration of vaccine immunity should be investigated to direct strategies for maintaining individual and population immunity against pneumococcal disease. PMID- 29021106 TI - Use of on-site detoxification services co-located with a supervised injection facility. AB - OBJECTIVES: Supervised injection facilities (SIFs) are increasingly being implemented worldwide in response to the harms associated with injection drug use. Although SIFs have been shown to promote engagement of people who use injection drugs (PWID) with external health services, little is known about the potential of co-locating on-site detoxification services with SIFs. The aim of this study was to characterize use of detoxification services co-located at Insite, North America's first SIF, among PWID in Vancouver, Canada. METHODS: Data were derived from two prospective cohorts of PWID in Vancouver, Canada between November 2010 and December 2012. Using multivariable generalized estimating equation logistic regression, we identified factors independently associated with reporting use of detoxification services at the SIF. RESULTS: Among 1316 PWID, 147 (11.2%) reported enrolling in detoxification services co-located with the SIF at least once during the two year study period. In multivariable analyses, after adjustment for other potential cofounders, factors independently and positively associated with use of this service included residence<5 blocks from the SIF (Adjusted Odds Ratio [AOR]=1.70), enrollment in methadone maintenance therapy (AOR=1.90), public injection (AOR=1.53), binge injection (AOR=1.93), recent overdose (AOR=1.90) and frequent SIF use (AOR=8.15) (all p<0.05). DISCUSSION: Use of on-site detoxification services offered at the SIF was common among PWID and associated with frequent SIF use and various markers of vulnerability and drug related risk. These findings highlight the potential role of SIFs as a point of access to detoxification services for high-risk PWID. Future studies should examine if co-location leads to higher uptake of addiction services in comparison to services that create geographic or other obstacles. PMID- 29021107 TI - Marijuana use and HIV treatment outcomes among PWH receiving care at an urban HIV clinic. AB - BACKGROUND: While marijuana use is prevalent among persons with HIV (PWH), few studies have examined the relationship between marijuana use and HIV treatment outcomes independent of alcohol and other drug use. METHODS: We conducted a prospective cohort study to examine the relationships between frequency of marijuana use and antiretroviral therapy (ART) adherence and viral suppression in patients enrolled in the Johns Hopkins HIV Clinical Cohort between September 2013 through November 2015 (N=1377). We categorized marijuana use as no use, none in the last 3months, monthly use or less, weekly/daily. Our outcomes of interest were use of ART, >=90 ART adherence, and viral suppression (HIV1-RNA<200 copies). We conducted multivariable analyses to examine associations between the frequency of marijuana use and our treatment outcomes, using generalized estimating equations to account for repeated measures. Other independent variables of interest included alcohol use, other drug use, and depressive symptoms. Analyses were adjusted for age, race, sex and HIV acquisition risk factor. RESULTS: In multivariable analyses we found no statistically significant association between frequency of marijuana use and our treatment outcomes. Alcohol use, other drug use and depressive symptoms were associated with lower odds of ART adherence and viral suppression. CONCLUSIONS: In this sample of PWH in care, frequency of marijuana use independent of other substance use does not appear to be associated with negative HIV treatment outcomes. Our results indicate that unlike alcohol, other substances and depression, marijuana use may not be a barrier to the effective treatment of HIV. PMID- 29021108 TI - Effects of a multifaceted implementation intervention to increase utilization of pharmacological treatments for alcohol use disorders in the US Veterans Health Administration. AB - Over 16 million Americans meet diagnostic criteria for alcohol use disorder (AUD), but only 7.8% of them receive formal treatment each year. Safe and effective pharmacological treatments for AUD exist; however, they are rarely prescribed. Therefore, we developed and pilot tested a multifaceted implementation intervention to improve consideration and receipt of effective pharmacologic treatments for AUD, focusing on primary care settings where patients have the most frequent contact with healthcare systems. The intervention included training of local providers to serve as champions and a website for primary care providers that included educational materials, a case-finding dashboard, and contact information for local and national clinical experts. We also mailed patients educational material about treatment options. The intervention was implemented at three large facilities of the Veterans Health Administration (VHA). An interrupted time series design, analyzed with segmented logistic regression, was used to evaluate the intervention's effects. The odds of a patient with AUD receiving one of the AUD medications was increasing throughout the pre-implementation period, and the rate of change (slope) increased significantly in the implementation period. Translating these numbers into percentages, at baseline 2.9% of patients filled a prescription for an AUD medication within 30days of a primary care visit. This increased to 3.8% by the end of the pre-implementation period (increasing 0.037% per month), and increased to 5.2% by the end of the implementation period (increasing 0.142% per month). However, the intervention effect was not significant when control sites were added, suggesting that improvement may have been driven by secular trends rather than solely by this intervention. Although the intervention was feasible, it was not effective. Continued analysis of process and implementation data including qualitative interviews with key stakeholders, may elucidate the reasons this intervention was not successful and ways to strengthen its effects. PMID- 29021109 TI - Design and impact of bundled payment for detox and follow-up care. AB - INTRODUCTION: Recent payment reforms promote movement from fee-for-service to alternative payment models that shift financial risk from payers to providers, incentivizing providers to manage patients' utilization. Bundled payment, an episode-based fixed payment that includes the prices of a group of services that would typically treat an episode of care, is expanding in the United States. Bundled payment has been recommended as a way to pay for comprehensive SUD treatment and has the potential to improve treatment engagement after detox, which could reduce detox readmissions, improve health outcomes, and reduce medical care costs. However, if moving to bundled payment creates large losses for some providers, it may not be sustainable. The objective of this study was to design the first bundled payment for detox and follow-up care and to estimate its impact on provider revenues. METHODS: Massachusetts Medicaid beneficiaries' behavioral health, medical, and pharmacy claims from July 2010-April 2013 were used to build and test a detox bundled payment for continuously enrolled adults (N=5521). A risk adjustment model was developed using general linear modeling to predict beneficiaries' episode costs. The projected payments to each provider from the risk adjustment analysis were compared to the observed baseline costs to determine the potential impact of a detox bundled payment reform on organizational revenues. This was modeled in two ways: first assuming no change in behavior and then assuming a supply-side cost sharing behavioral response of a 10% reduction in detox readmissions and an increase of one individual counseling and one group counseling session. RESULTS: The mean total 90-day detox episode cost was $3743. Nearly 70% of the total mean cost consists of the index detox, psychiatric inpatient care, and short-term residential care. Risk mitigation, including risk adjustment, substantially reduced the variation of the mean episode cost. There are opportunities for organizations to gain revenue under this bundled payment design, but many providers will lose money under a bundled payment designed using historic payment and costs. CONCLUSIONS: Designing a bundled payment for detox and follow-up care is feasible, but low case volume and the adequacy of the payment are concerns. Thus, a detox episode-based payment will likely be more challenging for smaller, independent SUD treatment providers. These providers are experiencing many changes as financing shifts away from block grant funding toward Medicaid funding. A detox bundled payment in practice would need to consider different risk mitigation strategies, provider pooling, and costs based on episodes of care meeting quality standards, but could incentivize care coordination, which is important to reducing detox readmissions and engaging patients in care. PMID- 29021111 TI - Exploring mortality among drug treatment clients: The relationship between treatment type and mortality. AB - AIMS: Studies consistently identify substance treatment populations as more likely to die prematurely compared with age-matched general population, with mortality risk higher out-of-treatment than in-treatment. While opioid-using pharmacotherapy cohorts have been studied extensively, less evidence exists regarding effects of other treatment types, and clients in treatment for other drugs. This paper examines mortality during and following treatment across treatment modalities. METHODS: A retrospective seven-year cohort was utilised to examine mortality during and in the two years following treatment among clients from Victoria, Australia, recorded on the Alcohol and Drug Information Service database by linking with National Death Index. 18,686 clients over a 12-month period were included. Crude (CMRs) and standardised mortality rates (SMRs) were analysed in terms of treatment modality, and time in or out of treatment. RESULTS: Higher risk of premature death was associated with residential withdrawal as the last type of treatment engagement, while mortality following counselling was significantly lower than all other treatment types in the year post-treatment. Both CMRs and SMRs were significantly higher in-treatment than post-treatment. CONCLUSION: Better understanding of factors contributing to elevated mortality risk for clients engaged in, and following treatment, is needed to ensure that treatment systems provide optimal outcomes during and after treatment. PMID- 29021112 TI - American counselors' acceptance of non-abstinence outcome goals for clients diagnosed with co-occurring substance use and other psychiatric disorders. AB - Previous research has examined clinicians' acceptance of non-abstinence for clients who have a substance use disorder (SUD), but many SUD clients also present with a psychiatric disorder. To evaluate the acceptability of non abstinence as a final outcome goal for clients with co-occurring diagnoses, we recruited a nationwide sample of 751 American substance abuse counselors to complete a web-based questionnaire. Respondents rated the acceptability of limited/moderate consumption by clients diagnosed with each of 18 co-occurring disorders: three psychiatric disorders (Major Depressive Disorder, Post-Traumatic Stress Disorder, Social Phobia) x three substances (alcohol, cannabis, opioids) x two levels of severity (DSM-5 Moderate SUD, DSM-5 Severe SUD). On average, non abstinence was rated as unacceptable for clients with any of the 18 diagnostic pairs, although one-fourth to almost one-third rated limited/moderate use of cannabis somewhat or completely acceptable for clients diagnosed with a Moderate Cannabis Use Disorder when paired with any of the three psychiatric disorders. Furthermore, small proportions of respondents (13% to 20%) rated non-abstinence at least somewhat acceptable even when clients were diagnosed with a Severe SUD for any of the three substances and any co-occurring psychiatric disorder. Based on our findings, clients with co-occurring disorders who want to moderate their substance use will typically find their counselor does not accept that outcome goal. Because supporting non-abstinence respects client autonomy, could attract and retain clients in counseling, and is consistent with a recovery-oriented treatment model, we encourage continuing education about the benefits of non abstinence as a treatment goal for clients with co-occurring disorders. PMID- 29021114 TI - A police-led addiction treatment referral program in Gloucester, MA: Implementation and participants' experiences. AB - BACKGROUND: The increasing rates of opioid use disorder and resulting overdose deaths are a public health emergency, yet only a fraction of individuals in need receive treatment. OBJECTIVE: To describe the implementation of and participants' experiences with a novel police-led addiction treatment referral program. METHODS: Follow-up telephone calls to participants in the Gloucester Police Department's Angel Program from June 2015-May 2016. Open-ended survey questionnaires assessed experiences of program participants and their close contacts, confirmed police-reported placement, and queried self-reported substance use and treatment outcomes. RESULTS: Surveys were completed by 198 of 367 individuals (54% response rate) who participated 214 times. Reasons for participation included: the program was a highly-visible entry point to the treatment system, belief that placement would be obtained, poor prior treatment system experiences, and external pressure to seek treatment. Most participants reported positive experiences citing the welcoming, non-judgmental services. In 75% (160/214) of the encounters, entry into referral placement was confirmed. Participants expressed frustration when they did not meet program entry requirements and had difficulty finding sustained treatment following initial program placement. At a mean follow-up time of 6.7months, 37% of participants reported abstinence since participation, with no differences between participants who entered referral placement versus those who did not. CONCLUSIONS: A police led referral program was feasible to implement and acceptable to participants. The program was effective in finding initial access to treatment, primarily through short-term detoxification services. However, the program was not able to overcome a fragmented treatment system focused on acute episodic care which remains a barrier to long-term recovery. PMID- 29021113 TI - Association between alcohol consumption and injection and sexual risk behaviors among people who inject drugs in rural Puerto Rico. AB - Although alcohol use has been associated with risky behavior generally, the relationship between alcohol use and multiple types of risk behaviors that could lead to the acquisition and transmission of HIV and hepatitis C (HCV) among people who inject drugs (PWID) has not been fully examined. The current study seeks to contribute to the understanding of how alcohol use is related to both injection risk and sexual risk, among a non-treatment, cross-sectional sample of mostly male PWID in rural Puerto Rico (n=315). "At-risk" alcohol use was defined as consuming >=14 drinks per week for males and >=7 drinks per week for females. Binge drinking frequency was defined as consuming >=5 drinks on one occasion for males and >=4 drinks on a single occasion for females. Multivariate regression models were used to examine the association between the alcohol use variables and injection and sexual risk outcomes, adjusting for demographic characteristics. Overall, 14% (n=45) of the participants in this sample were considered at-risk drinkers (44% low risk drinkers and 42% alcohol abstainers), and participants reported binge drinking, on average, at least once per month. At-risk drinking, compared to low risk or no drinking, increased both injection and sexual risk behaviors. Frequency of past year binge drinking was also associated with both injection and sexual risk behaviors. Interventions aimed at reducing HIV and HCV transmission among injection drug users non-PWID networks should both target individuals who drink alcohol frequently and in high volumes, and include strategies for reducing risky behaviors while heavy drinking is occurring. PMID- 29021110 TI - Collaborative care from the emergency department for injured patients with prescription drug misuse: An open feasibility study. AB - Collaborative Care is a comprehensive longitudinal care management strategy. The purpose of this pilot effectiveness-implementation hybrid study was to determine the feasibility of a Collaborative Care intervention initiated from the Emergency Department and proceeding longitudinally for six months for injured patients with prescription drug misuse (PDM). Adult patients presenting to an urban ED with an injury were screened for eligibility from 2/2015-8/2015. Eligible participants with a positive screen for PDM were enrolled in the 'ED-LINC' intervention which included the following elements: 1) active care coordination and linkage, 2) medication safety and utilization of opioid guidelines 3) longitudinal care management and 4) utilization of Electronic Medical Record (EMR) innovations such as the statewide Emergency Department Information Exchange (EDIE) and statewide prescription monitoring program information for assessment and follow-up. Baseline characteristics of the sample were assessed and regression models were used to evaluate longitudinal trajectories of risk for PDM. A total of 36 participants (56% of patients approached) had PDM and 30 participants were enrolled. Of those enrolled, 37% had prescription stimulant misuse, 20% with prescription sedative misuse and 97% had prescription opioid misuse. Follow-up rates at all time points were >=83%. Baseline levels of comorbidity were high; 57% endorsed recent heroin use and 70% endorsed symptoms consistent with major depression. Over 50% had five or more statewide ED visits and 53% had used three or more different ED's in the past year. On average, participants received a total of 85 minutes of ED-LINC over six months with 90% of participants receiving all four intervention elements. All patients had care coordinated with new or existing primary care providers (PCP's) and 23% were linked to a new PCP. A majority of patients (>=80%) reported receiving high quality, desired intervention services. There was no significant change in PDM over time. Collaborative Care initiated from the ED is feasible and acceptable to patients with trauma and PDM. Future directions could include effectiveness-implementation hybrid trials to study implementation barriers and strategies as well as patient level outcomes of this intervention for this complex patient population. PMID- 29021116 TI - Efficacy of a technology-based, integrated smoking cessation and alcohol intervention for smoking cessation in adolescents: Results of a cluster randomised controlled trial. AB - OBJECTIVE: To test the efficacy of a technology-based integrated smoking cessation and alcohol intervention versus a smoking cessation only intervention in adolescents. METHODS: This was a two-arm, parallel-group, cluster-randomised controlled trial with assessments at baseline and six months follow-up. Subjects in both groups received tailored mobile phone text messages to support smoking cessation for 3months, and the option of registering for a program incorporating strategies for smoking cessation centred around a self-defined quit date. Subjects in the integrated intervention group also received tailored feedback regarding their consumption of alcohol and, for binge drinkers, tailored mobile phone text messages encouraging them to maintain their drinking within low-risk limits over a 3-month period. Primary outcome measures were the 7-day point prevalence of smoking abstinence and change in cigarette consumption. RESULTS: In 360 Swiss vocational and upper secondary school classes, 2127 students who smoked tobacco regularly and owned a mobile phone were invited to participate in the study. Of these, 1471 (69.2%) participated and 6-month follow-up data were obtained for 1116 (75.9%). No significant group differences were observed for any of the primary or secondary outcomes. Moderator analyses revealed beneficial intervention effects concerning 7-day smoking abstinence in participants with higher versus lower alcohol consumption. CONCLUSIONS: Overall, the integrated smoking cessation and alcohol intervention exhibited no advantages over a smoking cessation only intervention, but it might be more effective for the subgroup of adolescent smokers with higher alcohol consumption. Providing a combined smoking cessation and alcohol intervention might be recommended for adolescent smokers with higher-level alcohol consumption. PMID- 29021115 TI - Specialty addiction and psychiatry treatment initiation and engagement: Results from an SBIRT randomized trial in pediatrics. AB - OBJECTIVE: Many adolescents needing specialty addiction or psychiatry treatment never access care. We examined initiation and engagement with addiction and/or psychiatry treatment among adolescents referred to treatment from a trial comparing two different modalities of delivering Screening, Brief Intervention and Referral to Treatment (SBIRT) to Usual Care in pediatric primary care. We hypothesized that both intervention arms would have higher initiation and engagement rates than usual care. METHODS: We randomized all pediatricians (n=52) in a pediatric primary care clinic to three arms: 1) pediatrician-only arm, in which pediatricians were trained to deliver SBIRT for substance use and/or mental health problems; 2) embedded-behavioral health clinician (embedded-BHC arm), in which pediatricians referred adolescents who endorsed substance use and/or mental health problems to a BHC; and 3) Usual Care (UC). We used electronic health record (EHR) data to examine specialty addiction and psychiatry treatment initiation and engagement rates after referral. RESULTS: Among patients who screened positive for substance use and/or mental health problems and were referred to specialty addiction and/or psychiatry (n=333), those in the embedded BHC arm had almost four times higher odds of initiating treatment than those in the pediatrician-only arm, OR=3.99, 95% CI=[1.99-8.00]. Compared to UC, those in the pediatrician-only arm had lower odds of treatment initiation (OR=0.53, 95% CI=[0.28-0.99]), while patients in the embedded-BHC arm had marginally higher odds (OR=1.83, 95% CI=[0.99-3.38]). Black patients and those with other/unknown race/ethnicity had lower odds of treatment initiation compared with white adolescents; there were no gender or age differences. We found no differences in treatment engagement across the three arms. CONCLUSIONS: Embedded BHCs can have a significant positive impact on facilitating treatment initiation for pediatric primary care adolescents referred to addiction and/or psychiatry services. CLINICAL TRIALS REGISTRATION: ClinicalTrials.gov #NCT02408952. PMID- 29021117 TI - There is an app for that - Or is there? A content analysis of publicly available smartphone apps for managing alcohol use. AB - INTRODUCTION: Smartphone apps are emerging as a promising tool to support recovery from and prevention of problematic alcohol use, yet it is unclear what type of apps are currently available in the public domain, and to what degree these apps use interactive tailoring or other dynamic features to meet users' specific needs. METHODS: We conducted a content analysis of Android apps for managing drinking available on Google Play (n=266), downloaded between November 21, 2014 and June 25, 2015. We recorded app popularity (>10,000 downloads) and user-rated quality (number of stars) from Google Play, and coded the apps on three domains (basic descriptors, functionality, use of dynamic features). RESULTS: In total, the reviewed 266 apps were downloaded at least 2,793,567 times altogether. The most common types of app were BAC calculators (37%), information provision apps (37%), tracking calendars (24%), and motivational tools (21%). Most apps were free (65%) or low in cost (mean=$3.76; SD=$5.80). Many apps provided at least some level of tailored feedback (60%), but the extent of tailoring was limited. Use of other dynamic features (i.e., push notifications, passive data collection) was largely absent. Univariate models predicting app popularity (i.e., >10,000 downloads vs. not) and user-rated quality (i.e., star rating) indicated that tailoring was positively related to popularity (OR=2.41 [1.30-4.46]), and the existence of time-based tailoring (e.g., tracking) was related to quality (b=0.48 [0.19-0.77]). CONCLUSIONS: These apps have a wide public health reach with >2.7 million total combined downloads to date. A wide variety of apps exist, allowing persons interested in using apps to help them manage their drinking to choose from numerous types of supports. Tailoring, while related favorably to an app's popularity and user-rated quality, is limited in publicly available apps. PMID- 29021118 TI - Convergence of online daily diaries and timeline followback among women at risk for alcohol exposed pregnancy. AB - Researchers and clinicians interested in assessing drinking and unprotected sex in evaluating risk for alcohol-exposed pregnancy (AEP) have limited options. The current investigation examined the degree to which data collected from online prospectively collected daily diaries (Diaries) converged with data from interviewer-administered retrospective timeline follow back (TLFB), the standard in AEP intervention studies. 71 women (Mage=27.7, SD=6.2) at risk for AEP were recruited via online advertising and were randomly assigned to an online patient education condition or a tailored, online internet intervention to reduce AEP risk. All participants were administered both Diaries and TLFB at baseline and 6months after intervention. Key outcomes were variables of drinking rates and unprotected sex that combined to indicate risk for AEP. Zero-order and intra class correlations (ICC) between Diaries and TLFB were strong for each outcome. Examination of ICC confidence intervals indicated that condition assignment did not have a significant impact on the degree of convergence between Diaries and TLFB. With the exception of proportion of days drinking and proportion of days with unprotected sex at baseline, none of the paired t-tests reached significance. Examination of descriptive statistics revealed that 63% of participants reported problem alcohol use and unprotected sex in both the 10-day Diaries and 90-day TLFB at baseline, with 70% agreement at post 6-month follow up. Findings indicate overall strong agreement between TLFB and Diaries in detecting alcohol use and unprotected sex in women at risk for AEP, and each method has benefits and challenges that should be weighed carefully by researchers and treatment providers. PMID- 29021120 TI - Characteristics of pregnant women who reported alcohol use at admission to substance use treatment. AB - OBJECTIVES: The current study analyzed the sociodemographic, treatment-related, and other substance use characteristics among pregnant women who reported alcohol use and were admitted to substance use treatment for the first time. METHODS: The Treatment Episode Data Set-Admission (TEDS-A) between 1992 and 2012 was used for conducting a cross-sectional study. RESULTS: Among pregnant women admitted to substance use treatment for the first time (N=166,863), 43.1% reported alcohol use of whom half used alcohol as the primary drug of choice. The proportion of pregnant women reporting any alcohol use declined over the study period, while the proportions of subgroups within pregnant women reporting alcohol use remained stable within the population. Those reporting alcohol use only notably had the highest proportion of women aged 40 or older and non-Hispanic White who were more educated, employed, and married, compared to those reporting alcohol use as primary but also other substance use and those reporting other substance as primary drug of choice. Those reporting only alcohol also were more likely to be referred by the justice system to outpatient treatment. Marijuana was the most popular co-used substance among pregnant women who use alcohol as primary drug of choice in the dataset. CONCLUSIONS: Differences in sociodemographic, treatment related, and other substance use characteristics between the three subgroups may help inform public health interventions aimed at mitigating the effects of prenatal alcohol use on maternal and child health. PMID- 29021119 TI - A pilot randomized trial of Motivational Interviewing compared to Psycho Education for reducing and preventing underage drinking in American Indian adolescents. AB - Underage drinking is an important public health issue for American Indian and Alaska Native (AI/AN) adolescents, as it is for U. S. teens of all ethnicities. One of the demonstrated risk factors for the development of alcohol use disorders in AI/AN is early age of initiation of drinking. To address this issue a randomized trial to assess the efficacy of Motivational Interviewing (MI) compared to Psycho-Education (PE) to reduce and prevent underage drinking in AI/AN youth was developed and implemented. Sixty-nine youth received MI or PE and 87% were assessed at follow-up. For teens who were already drinking, participating in the intervention (MI or PE) was associated, at follow-up, with lower quantity*frequency (q*f) of drinking (p=0.011), fewer maximum drinks per drinking occasion (p=0.004), and fewer problem behaviors (p=0.009). The MI intervention resulted in male drinkers reporting a lower q*f of drinking (p=0.048) and female drinkers reporting less depression (p=0.011). In teens who had not started drinking prior to the intervention, 17% had initiated drinking at follow-up. As a group they reported increased quantity*frequency of drinking (p=0.008) and maximum drinks (p=0.047), but no change in problem behaviors. These results suggest that intervening against underage drinking using either MI or PE in AI/AN youth can result in reduced drinking, prevention of initiation of drinking, and other positive behavioral outcomes. Brief interventions that enhance motivation to change as well as Psycho-Education may provide a successful approach to reducing the potential morbidity of underage drinking in this high risk group. PMID- 29021121 TI - Effect of computerized cognitive behavioral therapy on acquisition of coping skills among cocaine-dependent individuals enrolled in methadone maintenance. AB - : The acquisition of coping skills has long been considered one of the putative mechanisms of cognitive behavioral therapy (CBT) for substance use disorders, yet consistent statistical support is lacking. This study sought to replicate and extend prior findings regarding the quality of coping skills as a mediator of abstinence outcomes from a computerized CBT program for substance users. Participants were methadone-maintained, cocaine dependent individuals enrolled in a clinical trial evaluating the efficacy of computer-based training for CBT ('CBT4CBT') as an add-on to treatment as usual (TAU+CBT4CBT) compared to TAU only. A subsample (N=71) completed a role play assessment to measure coping skills, the Drug Risk Response Test (DRRT), which was administered before, during (week 4), and after the 8-week treatment period. Participants' verbal responses to various high-risk situations for cocaine use were recorded and independent evaluators rated the quality of the coping responses. Results of repeated measures analyses revealed a main effect of time for the quality of overall responses [F(1, 141.26)=4.29, p<0.01], indicating improvement in the quality of coping skills across groups, yet no differential effect of treatment. Despite the significant association between coping responses and abstinence outcomes, analyses did not support the quality of coping skills as a mediator of treatment effects. However, among the high-risk situations wherein individuals provided lower quality responses at baseline, those assigned to TAU+CBT4CBT showed greater improvement compared to those assigned to TAU only [F(1, 697.65)=6.47, p=0.01]. CONCLUSIONS: This study failed to replicate the quality of coping skills as a mediator of CBT4CBT's effect on reducing drug use previously shown in a mixed outpatient substance use sample. However, in this methadone maintained sample, those with poorer quality skills in response to certain high-risk situations at baseline appeared to improve their coping strategies following CBT4CBT compared to standard methadone treatment alone. PMID- 29021122 TI - Influencing quality of outpatient SUD care: Implementation of alerts and incentives in Washington State. AB - Financial incentives for quality improvement and feedback on specific clients are two approaches to improving the quality of treatment for individuals with substance use disorders. We examined the impacts of these interventions in Washington State by randomizing outpatient substance use treatment agencies into intervention and control groups. From October 2013 through December 2015, agencies could earn financial incentives for meeting performance goals incorporating both achievement relative to a benchmark and improvement from agencies' own baselines. Weekly feedback was e-mailed to agencies in the alert or alert plus incentives arms. Difference-in difference regressions controlling for client and agency characteristics showed that none of the interventions significantly affected client engagement after outpatient admissions, overall or for sub-groups based on race/ethnicity, age, rural residence, or agency baseline performance. Treatment agencies offered insights related to several themes: delivery system context (e.g., agency time and resources needed during transition to a managed behavioral healthcare system), implementation (e.g., data lag), agency issues (e.g., staff turnover), and client factors (e.g., motivation). Interventions took place during a time of Medicaid expansion and planning for statewide integration of mental health and substance use disorder treatment into a managed care model, which may have resulted in agencies not responding to the interventions. Moreover, incentives and alerts at the agency-level may not be effective when factors are at play beyond the agency's control. PMID- 29021124 TI - Finally, what we have been waiting for: evidence that transfusion of RBCs at the extreme of the storage spectrum is safe. PMID- 29021123 TI - Red blood cell storage and in-hospital mortality: a secondary analysis of the INFORM randomised controlled trial. AB - BACKGROUND: No randomised trials have addressed whether exposure to red blood cells (RBCs) stored longer than 35 days is associated with harm in patients. We aimed to assess the risk of in-hospital mortality associated with transfusing blood stored longer than 35 days. METHODS: We did a secondary analysis of the INforming Fresh versus Old Red cell Management (INFORM) trial, a pragmatic, multicentre, randomised controlled trial of patients (>=18 years) admitted to one of six hospitals in Australia, Canada, Israel, and the USA and expected to need RBC transfusions. Patients were randomly assigned (2:1) to receive blood in inventory stored for the longest time (standard care) or the shortest time, using a random allocation schedule and stratified by centre and patient ABO blood group. The primary objective of the INFORM trial was to assess all-cause in hospital mortality in patients with blood group A and O who were transfused. For our exploratory secondary analysis, we classified individuals into one of three mutually exclusive exposure categories on the basis of the maximum storage duration of any blood unit patients had received on each day in hospital: exclusively exposed to RBCs stored no longer than 7 days, exposed to at least one unit of RBCs stored 8-35 days, and exposed to least one unit of RBCs stored longer than 35 days. Our primary objective was to determine the effect on risk of in-hospital death of time-dependent exposure to RBCs stored longer than 35 days compared with exclusive exposure to RBCs stored no longer than 7 days, both in patients of blood groups A and O and all patients. The INFORM trial is registered as an International Standard Randomised Controlled Trial, number ISRCTN08118744. FINDINGS: Between April 2, 2012, and Oct 21, 2015, 31 497 patients were recruited, and 24 736 patients were eligible for inclusion in this analysis. We excluded nine patients for whom information about the storage duration of transfused blood was missing and one patient whose sex was unknown. 4480 (18%) patients were exposed to RBCs with longest storage, 1392 (6%) patients were exposed exclusively to RBCs with shortest storage, and 18 854 (76%) patients were exposed to RBCs stored 8-35 days. Median follow-up was 11 days (IQR 6-20). Exposure to RBCs stored longer than 35 days was not associated with increased risk of in-hospital death compared with exclusive exposure to the freshest RBC units after adjusting for demographic variables, diagnosis category, and blood product use history (in patients with blood group A or O: hazard ratio 0.94, 95% CI 0.73-1.20, p=0.60; in all patients: 0.91, 0.72-1.14, p=0.40). The risk of in hospital death also did not differ between patients exposed to blood stored 8-35 days and patients exposed to blood stored 7 days or less (in patients with blood group A or O: 0.92, 0.74-1.15, p=0.48; in all patients: 0.90, 0.73-1.10, p=0.29). INTERPRETATION: These data provide evidence that transfusion of blood stored for longer than 35 days has no effect on in-hospital mortality, which suggests that current approaches to blood storage and inventory management are reasonable. FUNDING: Canadian Institutes for Health Research, Canadian Blood Services, and Health Canada. PMID- 29021125 TI - Characteristics of Innovators Adopting a National Personal Health Record in Portugal: Cross-Sectional Study. AB - BACKGROUND: Personal health records (PHRs) are increasingly being deployed worldwide, but their rates of adoption by patients vary widely across countries and health systems. Five main categories of adopters are usually considered when evaluating the diffusion of innovations: innovators, early adopters, early majority, late majority, and laggards. OBJECTIVE: We aimed to evaluate adoption of the Portuguese PHR 3 months after its release, as well as characterize the individuals who registered and used the system during that period (the innovators). METHODS: We conducted a cross-sectional study. Users and nonusers were defined based on their input, or not, of health-related information into the PHR. Users of the PHR were compared with nonusers regarding demographic and clinical variables. Users were further characterized according to their intensity of information input: single input (one single piece of health-related information recorded) and multiple inputs. Multivariate logistic regression was used to model the probability of being in the multiple inputs group. ArcGis (ESRI, Redlands, CA, USA) was used to create maps of the proportion of PHR registrations by region and district. RESULTS: The number of registered individuals was 109,619 (66,408/109,619, 60.58% women; mean age: 44.7 years, standard deviation [SD] 18.1 years). The highest proportion of registrations was observed for those aged between 30 and 39 years (25,810/109,619, 23.55%). Furthermore, 16.88% (18,504/109,619) of registered individuals were considered users and 83.12% (91,115/109,619) nonusers. Among PHR users, 32.18% (5955/18,504) engaged in single input and 67.82% (12,549/18,504) in multiple inputs. Younger individuals and male users had higher odds of engaging in multiple inputs (odds ratio for male individuals 1.32, CI 1.19-1.48). Geographic analysis revealed higher proportions of PHR adoption in urban centers when compared with rural noncoastal districts. CONCLUSIONS: Approximately 1% of the country's population registered during the first 3 months of the Portuguese PHR. Registered individuals were more frequently female aged between 30 and 39 years. There is evidence of a geographic gap in the adoption of the Portuguese PHR, with higher proportions of adopters in urban centers than in rural noncoastal districts. PMID- 29021127 TI - Fall Detection in Individuals With Lower Limb Amputations Using Mobile Phones: Machine Learning Enhances Robustness for Real-World Applications. AB - BACKGROUND: Automatically detecting falls with mobile phones provides an opportunity for rapid response to injuries and better knowledge of what precipitated the fall and its consequences. This is beneficial for populations that are prone to falling, such as people with lower limb amputations. Prior studies have focused on fall detection in able-bodied individuals using data from a laboratory setting. Such approaches may provide a limited ability to detect falls in amputees and in real-world scenarios. OBJECTIVE: The aim was to develop a classifier that uses data from able-bodied individuals to detect falls in individuals with a lower limb amputation, while they freely carry the mobile phone in different locations and during free-living. METHODS: We obtained 861 simulated indoor and outdoor falls from 10 young control (non-amputee) individuals and 6 individuals with a lower limb amputation. In addition, we recorded a broad database of activities of daily living, including data from three participants' free-living routines. Sensor readings (accelerometer and gyroscope) from a mobile phone were recorded as participants freely carried it in three common locations-on the waist, in a pocket, and in the hand. A set of 40 features were computed from the sensors data and four classifiers were trained and combined through stacking to detect falls. We compared the performance of two population-specific models, trained and tested on either able-bodied or amputee participants, with that of a model trained on able-bodied participants and tested on amputees. A simple threshold-based classifier was used to benchmark our machine-learning classifier. RESULTS: The accuracy of fall detection in amputees for a model trained on control individuals (sensitivity: mean 0.989, 1.96*standard error of the mean [SEM] 0.017; specificity: mean 0.968, SEM 0.025) was not statistically different (P=.69) from that of a model trained on the amputee population (sensitivity: mean 0.984, SEM 0.016; specificity: mean 0.965, SEM 0.022). Detection of falls in control individuals yielded similar results (sensitivity: mean 0.979, SEM 0.022; specificity: mean 0.991, SEM 0.012). A mean 2.2 (SD 1.7) false alarms per day were obtained when evaluating the model (vs mean 122.1, SD 166.1 based on thresholds) on data recorded as participants carried the phone during their daily routine for two or more days. Machine learning classifiers outperformed the threshold-based one (P<.001). CONCLUSIONS: A mobile phone-based fall detection model can use data from non-amputee individuals to detect falls in individuals walking with a prosthesis. We successfully detected falls when the mobile phone was carried across multiple locations and without a predetermined orientation. Furthermore, the number of false alarms yielded by the model over a longer period of time was reasonably low. This moves the application of mobile phone-based fall detection systems closer to a real-world use case scenario. PMID- 29021126 TI - HealthyDads.ca: What Do Men Want in a Website Designed to Promote Emotional Wellness and Healthy Behaviors During the Transition to Parenthood? AB - BACKGROUND: Up to 18% of men experience depression and/or anxiety during the transition to parenthood. Interventions designed specifically to promote the mental health of men during the transition to parenthood are scarce. Internet delivered interventions may be acceptable and far-reaching in enhancing mental health, parenting knowledge, and healthy behaviors in expectant or new fathers. OBJECTIVE: To guide the development of Healthydads.ca, a website designed to enhance mental health and healthy behaviors in expectant fathers, a needs assessment was conducted to identify fathers' perspectives of barriers to seeking help for emotional wellness, informational needs, and factors affecting the decision to visit such a website. METHODS: One hundred and seventy-four men whose partners were expecting, or had recently given birth, in 3 Canadian provinces (Quebec, Ontario, and Alberta) completed a Web-based survey inquiring about information needs related to psychosocial aspects of the transition to parenthood, lifestyle behaviors, parenting, and factors associated with the decision to visit a father-focused website. RESULTS: Most men (155/174, 89.1%) reported accessing the Internet to obtain information on pregnancy and spent an average of 6.2 hours online per month. Seeking information about parenting on the Internet was reported by 67.2% (117/174) of men, with a mean of 4.4 hours per month of online searching. Top barriers to seeking help to improve emotional wellness during the perinatal period were: no time to seek help/assistance (130/174, 74.7%), lack of resources available in the health care system (126/174, 72.4%), financial costs associated with services (118/174, 67.8%), and feeling that one should be able to do it alone (113/174, 64.9%). Information needs that were rated highly included: parenting/infant care (52.9-81.6%), supporting (121/174, 69.5%) and improving (124/174, 71.3%) relationship with their partner, work-family balance (120/174, 69.0%), improving sleep (100/174, 57.5%), and managing stress (98/174, 56.3%). Perceiving the website as personally relevant (151/174, 86.8%), credible (141/174, 81.0%), effective (140/145, 80.5%), and having an easy navigation structure (141/174, 81.0%) were identified as important factors related to a first website visit. Providing useful (134/174, 77.0%) and easy to understand (158/174, 90.8%) information, which was also free of charge (156/174, 89.7%), were considered important for deciding to prolong a website visit. Providing the possibility to post questions to a health professional (133/174, 76.4%), adding new content regularly (119/174, 68.4%), and personal motivation (111/174, 63.8%) were factors identified that would encourage a revisit. CONCLUSIONS: Our findings demonstrate that there is substantial interest among expectant and new fathers for using Internet-delivered strategies to prepare for the transition to parenthood and support their mental health. Specific user and website features were identified to optimize the use of father focused websites. PMID- 29021129 TI - Real-World Treatment Sequences and Outcomes Among Patients With Non-Small Cell Lung Cancer (RESOUNDS) in the United States: Study Protocol. AB - BACKGROUND: Survival outcomes are related to treatment choices in a line of therapy and to treatment sequences across all lines of therapy. OBJECTIVE: The Real-World Treatment Sequences and Outcomes among Patients with NSCLC (RESOUNDS) study is designed to (1) evaluate treatment sequences used for patients who receive at least two lines of therapy for non-small cell lung cancer (NSCLC) in the United States and (2) evaluate patient outcomes in terms of progression-free and overall survival related to treatment sequencing. Additional objectives include the evaluation of symptoms, comorbidities, and health care resource utilization and costs. METHODS: Patients will be censored at loss to follow-up due to leaving the health plan or reaching the end of the study period. RESULTS: This study is ongoing. CONCLUSIONS: The RESOUNDS cohort study is a novel approach to building a comprehensive dataset that mimics a prospective observational study using linked patient-level data from four real-world data sources. This study will provide timely information on the sequencing of treatments for patients with NSCLC. PMID- 29021128 TI - Psychometric Properties of Patient-Facing eHealth Evaluation Measures: Systematic Review and Analysis. AB - BACKGROUND: Significant resources are being invested into eHealth technology to improve health care. Few resources have focused on evaluating the impact of use on patient outcomes A standardized set of metrics used across health systems and research will enable aggregation of data to inform improved implementation, clinical practice, and ultimately health outcomes associated with use of patient facing eHealth technologies. OBJECTIVE: The objective of this project was to conduct a systematic review to (1) identify existing instruments for eHealth research and implementation evaluation from the patient's point of view, (2) characterize measurement components, and (3) assess psychometrics. METHODS: Concepts from existing models and published studies of technology use and adoption were identified and used to inform a search strategy. Search terms were broadly categorized as platforms (eg, email), measurement (eg, survey), function/information use (eg, self-management), health care occupations (eg, nurse), and eHealth/telemedicine (eg, mHealth). A computerized database search was conducted through June 2014. Included articles (1) described development of an instrument, or (2) used an instrument that could be traced back to its original publication, or (3) modified an instrument, and (4) with full text in English language, and (5) focused on the patient perspective on technology, including patient preferences and satisfaction, engagement with technology, usability, competency and fluency with technology, computer literacy, and trust in and acceptance of technology. The review was limited to instruments that reported at least one psychometric property. Excluded were investigator-developed measures, disease-specific assessments delivered via technology or telephone (eg, a cancer-coping measure delivered via computer survey), and measures focused primarily on clinician use (eg, the electronic health record). RESULTS: The search strategy yielded 47,320 articles. Following elimination of duplicates and non-English language publications (n=14,550) and books (n=27), another 31,647 articles were excluded through review of titles. Following a review of the abstracts of the remaining 1096 articles, 68 were retained for full-text review. Of these, 16 described an instrument and six used an instrument; one instrument was drawn from the GEM database, resulting in 23 articles for inclusion. None included a complete psychometric evaluation. The most frequently assessed property was internal consistency (21/23, 91%). Testing for aspects of validity ranged from 48% (11/23) to 78% (18/23). Approximately half (13/23, 57%) reported how to score the instrument. Only six (26%) assessed the readability of the instrument for end users, although all the measures rely on self-report. CONCLUSIONS: Although most measures identified in this review were published after the year 2000, rapidly changing technology makes instrument development challenging. Platform-agnostic measures need to be developed that focus on concepts important for use of any type of eHealth innovation. At present, there are important gaps in the availability of psychometrically sound measures to evaluate eHealth technologies. PMID- 29021130 TI - Knowledge Management Framework for Emerging Infectious Diseases Preparedness and Response: Design and Development of Public Health Document Ontology. AB - BACKGROUND: There are increasing concerns about our preparedness and timely coordinated response across the globe to cope with emerging infectious diseases (EIDs). This poses practical challenges that require exploiting novel knowledge management approaches effectively. OBJECTIVE: This work aims to develop an ontology-driven knowledge management framework that addresses the existing challenges in sharing and reusing public health knowledge. METHODS: We propose a systems engineering-inspired ontology-driven knowledge management approach. It decomposes public health knowledge into concepts and relations and organizes the elements of knowledge based on the teleological functions. Both knowledge and semantic rules are stored in an ontology and retrieved to answer queries regarding EID preparedness and response. RESULTS: A hybrid concept extraction was implemented in this work. The quality of the ontology was evaluated using the formal evaluation method Ontology Quality Evaluation Framework. CONCLUSIONS: Our approach is a potentially effective methodology for managing public health knowledge. Accuracy and comprehensiveness of the ontology can be improved as more knowledge is stored. In the future, a survey will be conducted to collect queries from public health practitioners. The reasoning capacity of the ontology will be evaluated using the queries and hypothetical outbreaks. We suggest the importance of developing a knowledge sharing standard like the Gene Ontology for the public health domain. PMID- 29021133 TI - Five minutes with . . . Nicola Strickland. PMID- 29021132 TI - Willingness to Use Mobile Phone Apps for HIV Prevention Among Men Who Have Sex with Men in London: Web-Based Survey. AB - BACKGROUND: Many men who have sex with men (MSM) use apps to connect with and meet other MSM. Given that these apps are often used to arrange sexual encounters, it is possible that apps may be suitable venues for messages and initiatives related to HIV prevention such as those to increase HIV testing rates among this population. OBJECTIVE: The purpose of this study was to assess willingness to use a new app for reminders of when to be tested for HIV infection among a sample of MSM in London who use apps to arrange sexual encounters. METHODS: Broadcast advertisements targeted users of a popular social-networking app for MSM in London. Advertisements directed users to a Web-based survey of sexual behaviors and sexual health needs. Willingness to use apps for reminders of when to be tested for HIV was assessed. In addition, participants responded to items assessing recent sexual behaviors, substance use, and demographic characteristics. Exploratory analyses were undertaken to examine differences in willingness to use an app by demographic and behavioral characteristics. RESULTS: Broadcast advertisements yielded a sample of 169 HIV-negative MSM. Overall, two thirds (108/169, 63.9%) reported willingness to use an app to remind them when to be tested for HIV. There were no significant differences in willingness to use these apps based on demographic characteristics, but MSM who reported recent binge drinking and recent club drug use more frequently reported willingness to use this app compared to their nonusing counterparts. CONCLUSIONS: MSM in this sample are willing to use a new app for HIV testing reminders. Given the high levels of willingness to use them, these types of apps should be developed, evaluated, and made available for this population. PMID- 29021131 TI - Participatory Disease Surveillance: Engaging Communities Directly in Reporting, Monitoring, and Responding to Health Threats. AB - BACKGROUND: Since 2012, the International Workshop on Participatory Surveillance (IWOPS) has served as an informal network to share best practices, consult on analytic methods, and catalyze innovation to advance the burgeoning method of direct engagement of populations in voluntary monitoring of disease. OBJECTIVE: This landscape provides an overview of participatory disease surveillance systems in the IWOPS network and orients readers to this growing field of practice. METHODS: Authors reviewed participatory approaches that include human and animal health surveillance, both syndromic (self- reported symptoms) and event-based, and how these tools have been leveraged for disease modeling and forecasting. The authors also discuss benefits, challenges, and future directions for participatory disease surveillance. RESULTS: There are at least 23 distinct participatory surveillance tools or programs represented in the IWOPS network across 18 countries. Organizations supporting these tools are diverse in nature. CONCLUSIONS: Participatory disease surveillance is a promising method to complement both traditional, facility-based surveillance and newer digital epidemiology systems. PMID- 29021134 TI - NIH Funds Pediatric Data Resource Center. AB - Children's Hospital of Philadelphia will lead a collaborative effort-funded with $14.8 million from the NIH-to pool genomic and phenotypic data from tens of thousands of patients to study the causes of pediatric cancer and structural birth defects. PMID- 29021135 TI - Histone Acetyltransferase KAT6A Upregulates PI3K/AKT Signaling through TRIM24 Binding. AB - Lysine acetyltransferase KAT6A is a chromatin regulator that contributes to histone modification and cancer, but the basis of its actions are not well understood. Here, we identify a KAT6A signaling pathway that facilitates glioblastoma (GBM), where it is upregulated. KAT6A expression was associated with GBM patient survival. KAT6A silencing suppressed cell proliferation, cell migration, colony formation, and tumor development in an orthotopic mouse xenograft model system. Mechanistic investigations demonstrated that KAT6A acetylates lysine 23 of histone H3 (H3K23), which recruits the nuclear receptor binding protein TRIM24 to activate PIK3CA transcription, thereby enhancing PI3K/AKT signaling and tumorigenesis. Overexpressing activated AKT or PIK3CA rescued the growth inhibition due to KAT6A silencing. Conversely, the pan-PI3K inhibitor LY294002 abrogated the growth-promoting effect of KAT6A. Overexpression of KAT6A or TRIM24, but not KAT6A acetyltransferase activity-deficient mutants or TRIM24 mutants lacking H3K23ac-binding sites, promoted PIK3CA expression, AKT phosphorylation, and cell proliferation. Taken together, our results define an essential role of KAT6A in glioma formation, rationalizing its candidacy as a therapeutic target for GBM treatment. Cancer Res; 77(22); 6190-201. (c)2017 AACR. PMID- 29021136 TI - Distinct Angiogenic Changes during Carcinogenesis Defined by Novel Label-Free Dark-Field Imaging in a Hamster Cheek Pouch Model. AB - There remain gaps in knowledge concerning how vascular morphology evolves during carcinogenesis. In this study, we imaged neovascularization by label-free dark field microscopy of a 7,12-Dimethylbenz[a]anthracene (DMBA)-induced hamster cheek pouch model of oral squamous cell carcinoma (SCC). Wavelength-dependent imaging revealed distinct vascular features at different imaging depths and vessel sizes. Vascular tortuosity increased significantly in high-risk lesions, whereas diameter decreased significantly in hyperplastic and SCC lesions. Large vessels preserved the same trends seen in the original images, whereas small vessels displayed different trends, with length and diameter increasing during carcinogenesis. On the basis of these data, we developed and validated a classification algorithm incorporating vascular features from different vessel masks. Receiver operator curves generated from the classification results demonstrated high accuracies in discriminating normal and hyperplasia from high grade lesions (AUC > 0.94). Overall, these results provided automated imaging of vasculature in the earliest stages of carcinogenesis from which one can extract robust endpoints. The optical toolbox described here is simple, low-cost and portable, and can be used in a variety of health care and research settings for cancer prevention and pharmacology research. Cancer Res; 77(24); 7109-19. (c)2017 AACR. PMID- 29021137 TI - DDB2 Is a Novel Regulator of Wnt Signaling in Colon Cancer. AB - Deregulation of the Wnt/beta-catenin signaling pathway drives the development of colorectal cancer, but understanding of this pathway remains incomplete. Here, we report that the damage-specific DNA-binding protein DDB2 is critical for beta catenin-mediated activation of RNF43, which restricts Wnt signaling by removing Wnt receptors from the cell surface. Reduced expression of DDB2 and RNF43 was observed in human hyperplastic colonic foci. DDB2 recruited EZH2 and beta-catenin at an upstream site in the Rnf43 gene, enabling functional interaction with distant TCF4/beta-catenin-binding sites in the intron of Rnf43 This novel activity of DDB2 was required for RNF43 function as a negative feedback regulator of Wnt signaling. Mice genetically deficient in DDB2 exhibited increased susceptibility to colon tumor development in a manner associated with higher abundance of the Wnt receptor-expressing cells and greater activation of the downstream Wnt pathway. Our results identify DDB2 as both a partner and regulator of Wnt signaling, with an important role in suppressing colon cancer development. Cancer Res; 77(23); 6562-75. (c)2017 AACR. PMID- 29021140 TI - Fulminant Bacillus cereus septicaemia with multiple organ ischaemic/haemorrhagic complications in a patient undergoing chemotherapy for acute myelogenous leukaemia. AB - Bacillus cereus is a Gram-positive spore-forming rod widely found in the environment and is thought to be a frequent source of contamination. This micro organism is reportedly a significant pathogenic agent among immunocompromised individuals. Furthermore, multiple cases of fulminant septicaemia have been reported among individuals receiving chemotherapy for acute myelogenous leukaemia. In some cases, B. cereus septicaemia was associated with multiple haemorrhages. We, herein, describe a patient with an extremely acute course of B. cereus septicaemia characterised by haemorrhage and infarction of multiple organs, which led to his death. Our findings suggest that delayed treatment of B. cereus in patients with haematologic malignancies undergoing chemotherapy may result in extremely poor outcomes; thus, immediate empirical treatment with vancomycin should be considered. PMID- 29021139 TI - Paxillin Binding to the Cytoplasmic Domain of CD103 Promotes Cell Adhesion and Effector Functions for CD8+ Resident Memory T Cells in Tumors. AB - CD8+/CD103+ tissue-resident memory T cells (TRM cells) accumulate in several human solid tumors, where they have been associated with a favorable prognosis. However, the role of CD103, the alpha subunit of the integrin alphaEbeta7 (also known as CD103), in the retention and functions of these TRM is undefined. In this report, we investigated the role of CD103 cytoplasmic domain and the focal adhesion-associated protein paxillin (Pxn) in downstream signaling and functional activities triggered through alphaE/CD103 chain. Binding to immobilized recombinant (r)E-cadherin-Fc of CD103 integrin expressed on tumor-specific CTL clones promotes phosphorylation of Pxn and Pyk2 and binding of Pxn to the alphaE/CD103 subunit tail. Inhibition of Pxn phosphorylation by the Src inhibitor saracatinib or its knockdown via shRNA dramatically altered adhesion and spreading of freshly isolated CD8+/CD103+ lung tumor-infiltrating lymphocytes and CD103+ tumor-specific CTL clones. Inhibition of Pxn phosphorylation with saracatinib in these CTL clones also severely compromised their functional activities toward autologous tumor cells. Using Jurkat T cells as a model to study CD103 integrin activation, we demonstrated a key role of serine residue S1163 of the alphaE chain intracellular domain in polarization of CD103 and recruitment of lysosomes and Pxn at the contact zone of T lymphocytes with rE cadherin-Fc-coated beads. Overall, our results show how Pxn binding to the CD103 cytoplasmic tail triggers alphaEbeta7 integrin outside-in signaling that promotes CD8+ T-cell migratory behavior and effector functions. These results also explain the more favorable prognosis associated with retention of TRM cells in the tumor microenvironment. Cancer Res; 77(24); 7072-82. (c)2017 AACR. PMID- 29021138 TI - Glutamine Addiction in Kidney Cancer Suppresses Oxidative Stress and Can Be Exploited for Real-Time Imaging. AB - Many cancers appear to activate intrinsic antioxidant systems as a means to counteract oxidative stress. Some cancers, such as clear cell renal cell carcinoma (ccRCC), require exogenous glutamine for growth and exhibit reprogrammed glutamine metabolism, at least in part due to the glutathione pathway, an efficient cellular buffering system that counteracts reactive oxygen species and other oxidants. We show here that ccRCC xenograft tumors under the renal capsule exhibit enhanced oxidative stress compared with adjacent normal tissue and the contralateral kidney. Upon glutaminase inhibition with CB-839 or BPTES, the RCC cell lines SN12PM-6-1 (SN12) and 786-O exhibited decreased survival and pronounced apoptosis associated with a decreased GSH/GSSG ratio, augmented nuclear factor erythroid-related factor 2, and increased 8-oxo-7,8 dihydro-2'-deoxyguanosine, a marker of DNA damage. SN12 tumor xenografts showed decreased growth when treated with CB-839. Furthermore, PET imaging confirmed that ccRCC tumors exhibited increased tumoral uptake of 18F-(2S,4R)4 fluoroglutamine compared with the kidney in the orthotopic mouse model. This technique can be utilized to follow changes in ccRCC metabolism in vivo Further development of these paradigms will lead to new treatment options with glutaminase inhibitors and the utility of PET to identify and manage patients with ccRCC who are likely to respond to glutaminase inhibitors in the clinic. Cancer Res; 77(23); 6746-58. (c)2017 AACR. PMID- 29021141 TI - Use of a dynamic gait trainer for a child with thoracic level spinal cord injury. AB - Paediatric spinal cord injury (SCI) can result in permanent mobility impairment with consequences for activity, participation and quality of life. This case documents the effect of an overground supported stepping intervention using a dynamic gait trainer. To our knowledge, there are no published studies on this intervention for children with SCI and similar interventions have only been reported in children at American Spinal Injury Association Impairment Scale (AIS) levels B and C.A child with a T10 (thoracic level, vertebra 10), AIS level A injury, sustained at 2 years of age, continued to make gains in all areas including participation, activity, body structure and function over the following 4 years. Use of a dynamic gait trainer improved the participant's ability to be active and participate despite lack of further neuromuscular recovery. This novel approach with a commonly available device allowed the child to be active and participate in the absence of neural recovery. PMID- 29021142 TI - Knotted urethral catheter: an unusual complication in adults. AB - Knotting of feeding tubes or urinary catheters has been reported as a rare complication in paediatrics when draining the bladder. This is caused by inserting thin flexible tubes too far in, allowing it to coil. We present a case of a 70-year-old woman who was catheterised during a routine spinal surgery, and the catheter coiled and balloon failed to deflate requiring a cystostopic approach to puncture the balloon and remove it. Awareness of this complication in female catheterisation and education on length of catheter insertion is important to avoid this. PMID- 29021143 TI - Cold agglutinins in a patient undergoing normothermic cardiac operation with warm cardioplegia. AB - Cold agglutinins are autoantibodies that agglutinate red blood cells at low temperatures, leading to haemagglutination and haemolysis. They are generally of no clinical significance. However, when people with cold agglutinins undergo cardiac operation with hypothermia and cold cardioplegia, they can experience complications. Thus, different perioperative management is required for such patients. We describe a 74-year-old man with cold agglutinins incidentally detected on the preoperative screening test. He had never experienced any complications or developed a haematological disease. Since cold agglutinins were incidentally detected on the preoperative test, a special strategy was used to manage the temperature of cardiopulmonary bypass (CPB) and cardioplegia. He successfully underwent normothermic cardiac operation with warm cardioplegia. A continuous retrograde hyperkalaemic infusion and intermittent antegrade infusion of warm cardioplegia with normothermic CPB is one of the best methods to avoid hypothermia and excessive activity and metabolism of the heart, and to provide a suitable operative field. PMID- 29021144 TI - Metastatic primary seminal vesicle adenocarcinoma: management of a rare tumour with multiagent chemotherapy and hormonal therapy. AB - Primary seminal vesicle adenocarcinoma is one of the rarest genitourinary cancers. The pathogenesis is unknown and clinical manifestations are protean. There is no defined treatment for this disease and various combinations of surgery, chemotherapy, radiation therapy and hormonal therapy have been used in the past. Here, we have reported a primary seminal vesicle adenocarcinoma with hepatic metastases, managed with multiagent chemotherapy (oxaliplatin and 5 fluorouracil based) and androgen ablation (with triptorelin). The key to management of such a case is early diagnosis and multimodal treatment. The reported survival rate continues to be poor even for a localised disease. A consolidated follow-up protocol ensures early diagnosis of recurrent or metastatic disease so that second-line therapy can be started. PMID- 29021145 TI - Early sonographic detection of a succenturiate placenta after IVF in a 42-year old woman with multiple comorbidities. AB - We present a case of a 42-year-old woman with a pregnancy resulting from in vitro fertilisation and a medical history including two spontaneous abortions, hypercoagulable state and other comorbidities. At 13 4/7 weeks' gestation, during research ultrasonography, the patient was noted to have an anterior succenturiate placental lobe. Following an episode of vaginal bleeding at 21 6/7 weeks, she was diagnosed with a low-lying posterior placental lobe. Velamentous cord insertion, placenta previa and vasa previa were excluded at that time. After elective induction for advanced maternal age at 39 0/7 weeks, arrest of labour and chorioamnionitis resulted in a primary low transverse caesarean section and delivery of a healthy girl at 39 3/7 weeks. Gross examination of the placenta showed an irregular, singleton placenta with an attached succenturiate lobe and a marginally inserting umbilical cord. Both lobes were connected by two vessels. PMID- 29021146 TI - Double PCL sign on sagittal MRI of the knee. PMID- 29021147 TI - Atypical haematological presentation in a case of polycythaemia vera with a new variant mutation detected in exon 12: c.1605G>T (p.Met535Ile). AB - One of the major genetic insights into the pathogenesis of polycythaemia vera included the identification of the somatic point gain-of-function mutations in Janus kinase 2 gene-first JAK2V617F on exon 14, present in 95%-97% of the cases, and later on exon 12. In the literature, we can find some reported studies where different exon 12 mutations are identified. Unlike patients with JAK2V617F mutation in exon 14, the mutation at exon 12 is not usually associated with an increase in the three haematopoietic series (erythrocytosis, leucocytosis and thrombocytosis). It appears to be associated with a distinct syndrome, mostly characterised by isolated and more marked erythrocytosis, independently of the mutational variant. We report here the case of a patient who is JAK2exon 12 positive, presenting a novel mutation-c.1605G>T (p.Met535Ile)-associated with c.1612C>T (p.His538Tyr) mutation previously described, evidencing an atypical clinical phenotype. PMID- 29021148 TI - The voltage sensor of excitation-contraction coupling in mammals: Inactivation and interaction with Ca2. AB - In skeletal muscle, the four-helix voltage-sensing modules (VSMs) of CaV1.1 calcium channels simultaneously gate two Ca2+ pathways: the CaV1.1 pore itself and the RyR1 calcium release channel in the sarcoplasmic reticulum. Here, to gain insight into the mechanism by which VSMs gate RyR1, we quantify intramembrane charge movement associated with VSM activation (sensing current) and gated Ca2+ release flux in single muscle cells of mice and rats. As found for most four helix VSMs, upon sustained depolarization, rodent VSMs lose the ability to activate Ca2+ release channels opening; their properties change from a functionally capable mode, in which the mobile sensor charge is called charge 1, to an inactivated mode, charge 2, with a voltage dependence shifted toward more negative voltages. We find that charge 2 is promoted and Ca2+ release inactivated when resting, well-polarized muscle cells are exposed to low extracellular [Ca2+] and that the opposite occurs in high [Ca2+]. It follows that murine VSMs are partly inactivated at rest, which establishes the reduced availability of voltage sensing as a pathogenic mechanism in disorders of calcemia. We additionally find that the degree of resting inactivation is significantly different in two mouse strains, which underscores the variability of voltage sensor properties and their vulnerability to environmental conditions. Our studies reveal that the resting and activated states of VSMs are equally favored by extracellular Ca2+ Promotion by an extracellular species of two states of the VSM that differ in the conformation of the activation gate requires the existence of a second gate, inactivation, topologically extracellular and therefore accessible from outside regardless of the activation state. PMID- 29021149 TI - The envenomation of general physiology throughout the last century. AB - Toxins are the poisonous products of organisms. Toxins serve vital defensive and offensive functions for those that harbor them: stinging scorpions, pesticidal plants, sanguinary snakes, fearless frogs, sliming snails, noxious newts, and smarting spiders. For physiologists, toxins are integral chemical tools that hijack life's fundamental processes with remarkable molecular specificity. Our understanding of electrophysiological phenomena has been transformed time and time again with the help of some terrifying toxins. For this reason, studies of toxin mechanism are an important and enduring facet of The Journal of General Physiology (JGP). This Milestone in Physiology reflects on toxins studied in JGP over its first 100 years, what they have taught us, and what they have yet to reveal. PMID- 29021151 TI - Rapid Nanopore Sequencing of Plasmids and Resistance Gene Detection in Clinical Isolates. AB - Recent advances in nanopore sequencing technology have led to a substantial increase in throughput and sequence quality. Together, these improvements may permit real-time benchtop genomic sequencing and antimicrobial resistance gene detection in clinical isolates. In this study, we evaluated workflows and turnaround times for a benchtop long-read sequencing approach in the clinical microbiology laboratory using the Oxford Nanopore Technologies MinION sequencer. We performed genomic and plasmid sequencing of three clinical isolates with both MinION and Illumina MiSeq, using different library preparation methods (2D and rapid 1D) with the goal of antimicrobial resistance gene detection. We specifically evaluated the advantages of using plasmid DNA for sequencing and the value of supplementing MinION sequences with MiSeq reads for increasing assembly accuracy. Resequencing of three plasmids in a reference Klebsiella pneumoniae isolate demonstrated ~99% accuracy of draft MinION-only assembly and >99.9% accuracy of assembly polished with MiSeq reads. Plasmid DNA sequencing of previously uncharacterized clinical extended-spectrum beta-lactamase (ESBL) producing Escherichia coli and K. pneumoniae isolates using MinION allowed successful identification of antimicrobial resistance genes in the draft assembly corresponding to all classes of observed plasmid-based phenotypic resistance. Importantly, use of plasmid DNA enabled lower depth sequencing, and assemblies sufficient for full antimicrobial resistance gene annotation were obtained with as few as 2,000 to 5,000 reads, which could be acquired in 20 min of sequencing. With a MinION-only workflow that balances accuracy against turnaround time, full annotation of plasmid resistance gene content could be obtained in under 6 h from a subcultured isolate, less time than traditional phenotypic susceptibility testing. PMID- 29021150 TI - Identification of a selective and direct NLRP3 inhibitor to treat inflammatory disorders. AB - The NLRP3 inflammasome has been implicated in the pathogenesis of a wide variety of human diseases. A few compounds have been developed to inhibit NLRP3 inflammasome activation, but compounds directly and specifically targeting NLRP3 are still not available, so it is unclear whether NLRP3 itself can be targeted to prevent or treat diseases. Here we show that the compound CY-09 specifically blocks NLRP3 inflammasome activation. CY-09 directly binds to the ATP-binding motif of NLRP3 NACHT domain and inhibits NLRP3 ATPase activity, resulting in the suppression of NLRP3 inflammasome assembly and activation. Importantly, treatment with CY-09 shows remarkable therapeutic effects on mouse models of cryopyrin associated autoinflammatory syndrome (CAPS) and type 2 diabetes. Furthermore, CY 09 is active ex vivo for monocytes from healthy individuals or synovial fluid cells from patients with gout. Thus, our results provide a selective and direct small-molecule inhibitor for NLRP3 and indicate that NLRP3 can be targeted in vivo to combat NLRP3-driven diseases. PMID- 29021152 TI - Evaluation of the Clinical Performance of the HPV-Risk Assay Using the VALGENT-3 Panel. AB - Human papillomavirus (HPV) testing is increasingly being incorporated into cervical cancer screening. The Validation of HPV Genotyping Tests (VALGENT) is a framework designed to evaluate the clinical performance of various HPV tests relative to that of the validated and accepted comparator test in a formalized and uniform manner. The aim of this study was to evaluate the clinical performance of the HPV-Risk assay with samples from the VALGENT-3 panel and to compare its performance to that of the clinically validated Hybrid Capture 2 assay (HC2). The VALGENT-3 panel comprises 1,300 consecutive samples from women participating in routine cervical cancer screening and is enriched with 300 samples from women with abnormal cytology. DNA was extracted from original ThinPrep PreservCyt medium aliquots, and HPV testing was performed using the HPV Risk assay by investigators blind to the clinical data. HPV prevalence was analyzed, and the clinical performance of the HPV-Risk assay for the detection of cervical intraepithelial neoplasia grade 3 or worse (CIN3+) and CIN2 or worse (CIN2+) relative to the performance of HC2 was assessed. The sensitivity of the HPV-Risk assay for the detection of CIN3+ was similar to that of HC2 (relative sensitivity, 1.00; 95% confidence interval [CI], 0.95 to 1.05; P = 1.000), but the specificity of the HPV-Risk assay was significantly higher than that of HC2 (relative specificity, 1.02; 95% CI, 1.01 to 1.04; P < 0.001). For the detection of CIN2+, similar results were obtained, with the relative sensitivity being 0.98 (95% CI, 0.93 to 1.02; P = 0.257) and the relative specificity being 1.02 (95% CI, 1.01 to 1.03; P < 0.001). The performance of the HPV-Risk assay for the detection of CIN3+ and CIN2+ was noninferior to that of HC2, with all P values being <=0.006. In conclusion, the HPV-Risk assay demonstrated noninferiority to the clinically validated HC2 by the use of samples from the VALGENT-3 panel for test validation and comparison. PMID- 29021153 TI - Evaluation of the beta-Lacta Test for Detection of Extended-Spectrum-beta Lactamase (ESBL)-Producing Organisms Directly from Positive Blood Cultures by Use of Smudge Plates. PMID- 29021154 TI - Laboratory Validation of Xpert Chlamydia trachomatis/Neisseria gonorrhoeae and Trichomonas vaginalis Testing as Performed by Nurses at Three Primary Health Care Facilities in South Africa. PMID- 29021155 TI - Effects of Clinically Meaningful Concentrations of Antipseudomonal beta-Lactams on Time to Detection and Organism Growth in Blood Culture Bottles. AB - The effectiveness of antimicrobial binding resins present in blood culture (BC) bottles in removing meropenem, ceftolozane-tazobactam, and ceftazidime-avibactam is unknown. We assessed the time to detection (TTD) and growth of 2 Pseudomonas aeruginosa isolates in the presence of clinically meaningful concentrations of these antibiotics. Bactec Plus Aerobic/F and BacT/Alert FA Plus BC bottles were inoculated with one of two isolates (1 meropenem susceptible and 1 resistant), followed by fresh whole blood containing the peak, midpoint, or trough plasma concentrations for meropenem, ceftolozane-tazobactam, and ceftazidime-avibactam. Matching bottles were loaded into their respective detection instruments and a standard incubator at 37 degrees C, with TTD and CFU being monitored for up to 72 h. Bacterial growth was observed for 11/48 (22.9%), 22/48 (45.8%), and 47/48 (97.9%) of all BC bottles inoculated with the peak, midpoint, and trough concentrations, respectively (P <= 0.001). When P. aeruginosa was isolated, the TTD was typically <26 h, and no differences between Bactec and BacT/Alert bottles were observed. In both systems, meropenem was removed to a greater degree than were ceftolozane and ceftazidime; however, concentrations for all antibiotics remained above the MIC for the susceptible organisms at 12 h. BC bottles containing antibiotic binding resins may not sufficiently inactivate achievable concentrations of meropenem, ceftolozane-tazobactam, and ceftazidime-avibactam. The consistent identification of both P. aeruginosa isolates was observed only in the presence of antibiotic trough concentrations. To minimize false-negative BC results for patients already receiving these antibiotics, cultures should be collected just prior to the next dose, when antibiotic concentrations are lowest. PMID- 29021156 TI - Safety and Accuracy of Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry for Identification of Highly Pathogenic Organisms. AB - Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) sample preparation methods, including the direct, on-plate formic acid, and ethanol/formic acid tube extraction methods, were evaluated for their ability to render highly pathogenic organisms nonviable and safe for handling in a biosafety level 2 laboratory. Of these, the tube extraction procedure was the most successful, with none of the tested strains surviving this sample preparation method. Tube extracts from several agents of bioterrorism and their near neighbors were analyzed in an eight-laboratory study to examine the utility of the Bruker Biotyper and Vitek MS MALDI-TOF MS systems and their in vitro diagnostic (IVD), research-use-only, and Security-Relevant databases, as applicable, to accurately identify these agents. Forty-six distinct strains of Bacillus anthracis, Yersinia pestis, Francisella tularensis, Burkholderia mallei, Burkholderia pseudomallei, Clostridium botulinum, Brucella melitensis, Brucella abortus, Brucella suis, and Brucella canis were extracted and distributed to participating laboratories for analysis. A total of 35 near-neighbor isolates were also analyzed. PMID- 29021157 TI - Ribosome flow model with extended objects. AB - We study a deterministic mechanistic model for the flow of ribosomes along the mRNA molecule, called the ribosome flow model with extended objects (RFMEO). This model encapsulates many realistic features of translation including non homogeneous transition rates along mRNA, the fact that every ribosome covers several codons, and the fact that ribosomes cannot overtake one another. The RFMEO is a mean-field approximation of an important model from statistical mechanics called the totally asymmetric simple exclusion process with extended objects (TASEPEO). We demonstrate that the RFMEO describes biophysical aspects of translation better than previous mean-field approximations, and that its predictions correlate well with those of TASEPEO. However, unlike TASEPEO, the RFMEO is amenable to rigorous analysis using tools from systems and control theory. We show that the ribosome density profile along the mRNA in the RFMEO converges to a unique steady-state density that depends on the length of the mRNA, the transition rates along it, and the number of codons covered by every ribosome, but not on the initial density of ribosomes along the mRNA. In particular, the protein production rate also converges to a unique steady state. Furthermore, if the transition rates along the mRNA are periodic with a common period T then the ribosome density along the mRNA and the protein production rate converge to a unique periodic pattern with period T, that is, the model entrains to periodic excitations in the transition rates. Analysis and simulations of the RFMEO demonstrate several counterintuitive results. For example, increasing the ribosome footprint may sometimes lead to an increase in the production rate. Also, for large values of the footprint the steady-state density along the mRNA may be quite complex (e.g. with quasi-periodic patterns) even for relatively simple (and non-periodic) transition rates along the mRNA. This implies that inferring the transition rates from the ribosome density may be non-trivial. We believe that the RFMEO could be useful for modelling, understanding and re engineering translation as well as other important biological processes. PMID- 29021158 TI - Hierarchical temporal structure in music, speech and animal vocalizations: jazz is like a conversation, humpbacks sing like hermit thrushes. AB - Humans talk, sing and play music. Some species of birds and whales sing long and complex songs. All these behaviours and sounds exhibit hierarchical structure syllables and notes are positioned within words and musical phrases, words and motives in sentences and musical phrases, and so on. We developed a new method to measure and compare hierarchical temporal structures in speech, song and music. The method identifies temporal events as peaks in the sound amplitude envelope, and quantifies event clustering across a range of timescales using Allan factor (AF) variance. AF variances were analysed and compared for over 200 different recordings from more than 16 different categories of signals, including recordings of speech in different contexts and languages, musical compositions and performances from different genres. Non-human vocalizations from two bird species and two types of marine mammals were also analysed for comparison. The resulting patterns of AF variance across timescales were distinct to each of four natural categories of complex sound: speech, popular music, classical music and complex animal vocalizations. Comparisons within and across categories indicated that nested clustering in longer timescales was more prominent when prosodic variation was greater, and when sounds came from interactions among individuals, including interactions between speakers, musicians, and even killer whales. Nested clustering also was more prominent for music compared with speech, and reflected beat structure for popular music and self-similarity across timescales for classical music. In summary, hierarchical temporal structures reflect the behavioural and social processes underlying complex vocalizations and musical performances. PMID- 29021159 TI - Suction effects in cratered surfaces. AB - It has been shown experimentally that cratered surfaces may have better adhesion properties than flat ones. However, the suction effect produced by the craters, which may be chiefly responsible for the improved adhesion, has not been properly modelled. This paper combines experimental, numerical simulation and analytical approaches towards developing a framework for quantifying the suction effect produced by isolated craters and cratered surfaces. The modelling approach emphasizes the essential role of large elastic deformation, while the airflow dynamics, microscopic mechanisms, like surface tension and air permeation, and rate-dependence are neglected. This approach is validated using experimental data for isolated hemi-spherical craters. The modelling approach is further applied to spherical cap (not necessarily hemi-spherical) craters with the objective of identifying optimal geometric and material properties, as well as the minimum preload necessary for attaining the maximum suction force. It is determined that stiff polymers with deep craters are capable of producing large suction forces. For soft materials, central to biomedical applications, large suction forces can be attained by reinforcing deep craters with thin stiff layers. Parametric optimization studies of reinforced craters reveal that some of them perform beyond common expectations. However, those high-performance reinforced craters are prone to surface instabilities, and therefore the practical use of such craters may be problematic. PMID- 29021160 TI - Off-axis electron holography of bacterial cells and magnetic nanoparticles in liquid. AB - The mapping of electrostatic potentials and magnetic fields in liquids using electron holography has been considered to be unrealistic. Here, we show that hydrated cells of Magnetospirillum magneticum strain AMB-1 and assemblies of magnetic nanoparticles can be studied using off-axis electron holography in a fluid cell specimen holder within the transmission electron microscope. Considering that the holographic object and reference wave both pass through liquid, the recorded electron holograms show sufficient interference fringe contrast to permit reconstruction of the phase shift of the electron wave and mapping of the magnetic induction from bacterial magnetite nanocrystals. We assess the challenges of performing in situ magnetization reversal experiments using a fluid cell specimen holder, discuss approaches for improving spatial resolution and specimen stability, and outline future perspectives for studying scientific phenomena, ranging from interparticle interactions in liquids and electrical double layers at solid-liquid interfaces to biomineralization and the mapping of electrostatic potentials associated with protein aggregation and folding. PMID- 29021161 TI - Network-based approaches to quantify multicellular development. AB - Multicellularity and cellular cooperation confer novel functions on organs following a structure-function relationship. How regulated cell migration, division and differentiation events generate cellular arrangements has been investigated, providing insight into the regulation of genetically encoded patterning processes. Much less is known about the higher-order properties of cellular organization within organs, and how their functional coordination through global spatial relations shape and constrain organ function. Key questions to be addressed include: why are cells organized in the way they are? What is the significance of the patterns of cellular organization selected for by evolution? What other configurations are possible? These may be addressed through a combination of global cellular interaction mapping and network science to uncover the relationship between organ structure and function. Using this approach, global cellular organization can be discretized and analysed, providing a quantitative framework to explore developmental processes. Each of the local and global properties of integrated multicellular systems can be analysed and compared across different tissues and models in discrete terms. Advances in high resolution microscopy and image analysis continue to make cellular interaction mapping possible in an increasing variety of biological systems and tissues, broadening the further potential application of this approach. Understanding the higher-order properties of complex cellular assemblies provides the opportunity to explore the evolution and constraints of cell organization, establishing structure-function relationships that can guide future organ design. PMID- 29021162 TI - Electronic and vibrational properties of carotenoids: from in vitro to in vivo. AB - Carotenoids are among the most important organic compounds present in Nature and play several essential roles in biology. Their configuration is responsible for their specific photophysical properties, which can be tailored by changes in their molecular structure and in the surrounding environment. In this review, we give a general description of the main electronic and vibrational properties of carotenoids. In the first part, we describe how the electronic and vibrational properties are related to the molecular configuration of carotenoids. We show how modifications to their configuration, as well as the addition of functional groups, can affect the length of the conjugated chain. We describe the concept of effective conjugation length, and its relationship to the S0 -> S2 electronic transition, the decay rate of the S1 energetic level and the frequency of the nu1 Raman band. We then consider the dependence of these properties on extrinsic parameters such as the polarizability of their environment, and how this information (S0 -> S2 electronic transition, nu1 band position, effective conjugation length and polarizability of the environment) can be represented on a single graph. In the second part of the review, we use a number of specific examples to show that the relationships can be used to disentangle the different mechanisms tuning the functional properties of protein-bound carotenoids. PMID- 29021164 TI - Investigation of microvascular morphological measures for skeletal muscle tissue oxygenation by image-based modelling in three dimensions. AB - The supply of oxygen in sufficient quantity is vital for the correct functioning of all organs in the human body, especially for skeletal muscle during exercise. Traditionally, microvascular oxygen supply capability is assessed by the analysis of morphological measures on transverse cross-sections of muscle, e.g. capillary density or capillary-to-fibre ratio. In this work, we investigate the relationship between microvascular structure and muscle tissue oxygenation in mice. Phase contrast imaging was performed using synchrotron radiation computed tomography (SR CT) to visualize red blood cells (RBCs) within the microvasculature in mouse soleus muscle. Image-based mathematical modelling of the oxygen diffusion from the RBCs into the muscle tissue was subsequently performed, as well as a morphometric analysis of the microvasculature. The mean tissue oxygenation was then compared with the morphological measures of the microvasculature. RBC volume fraction and spacing (mean distance of any point in tissue to the closest RBC) emerged as the best predictors for muscle tissue oxygenation, followed by length density (summed RBC length over muscle volume). The two-dimensional measures of capillary density and capillary-to-fibre ratio ranked last. We, therefore, conclude that, in order to assess the states of health of muscle tissue, it is advisable to rely on three-dimensional morphological measures rather than on the traditional two-dimensional measures. PMID- 29021163 TI - Resource-driven encounters among consumers and implications for the spread of infectious disease. AB - Animals share a variety of common resources, which can be a major driver of conspecific encounter rates. In this work, we implement a spatially explicit mathematical model for resource visitation behaviour in order to examine how changes in resource availability can influence the rate of encounters among consumers. Using simulations and asymptotic analysis, we demonstrate that, under a reasonable set of assumptions, the relationship between resource availability and consumer conspecific encounters is not monotonic. We characterize how the maximum encounter rate and associated critical resource density depend on system parameters like consumer density and the maximum distance from which consumers can detect and respond to resources. The assumptions underlying our theoretical model and analysis are motivated by observations of large aggregations of black backed jackals at carcasses generated by seasonal outbreaks of anthrax among herbivores in Etosha National Park, Namibia. As non-obligate scavengers, black backed jackals use carcasses as a supplemental food resource when they are available. While jackals do not appear to acquire disease from ingesting anthrax carcasses, changes in their movement patterns in response to changes in carcass abundance do alter jackals' conspecific encounter rate in ways that may affect the transmission dynamics of other diseases, such as rabies. Our theoretical results provide a method to quantify and analyse the hypothesis that the outbreak of a fatal disease among herbivores can potentially facilitate outbreaks of an entirely different disease among jackals. By analysing carcass visitation data, we find support for our model's prediction that the number of conspecific encounters at resource sites decreases with additional increases in resource availability. Whether or not this site-dependent effect translates to an overall decrease in encounters depends, unexpectedly, on the relationship between the maximum distance of detection and the resource density. PMID- 29021165 TI - Preclinical modeling highlights the therapeutic potential of hematopoietic stem cell gene editing for correction of SCID-X1. AB - Targeted genome editing in hematopoietic stem/progenitor cells (HSPCs) is an attractive strategy for treating immunohematological diseases. However, the limited efficiency of homology-directed editing in primitive HSPCs constrains the yield of corrected cells and might affect the feasibility and safety of clinical translation. These concerns need to be addressed in stringent preclinical models and overcome by developing more efficient editing methods. We generated a humanized X-linked severe combined immunodeficiency (SCID-X1) mouse model and evaluated the efficacy and safety of hematopoietic reconstitution from limited input of functional HSPCs, establishing thresholds for full correction upon different types of conditioning. Unexpectedly, conditioning before HSPC infusion was required to protect the mice from lymphoma developing when transplanting small numbers of progenitors. We then designed a one-size-fits-all IL2RG (interleukin-2 receptor common gamma-chain) gene correction strategy and, using the same reagents suitable for correction of human HSPC, validated the edited human gene in the disease model in vivo, providing evidence of targeted gene editing in mouse HSPCs and demonstrating the functionality of the IL2RG-edited lymphoid progeny. Finally, we optimized editing reagents and protocol for human HSPCs and attained the threshold of IL2RG editing in long-term repopulating cells predicted to safely rescue the disease, using clinically relevant HSPC sources and highly specific zinc finger nucleases or CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 (CRISPR-associated protein 9). Overall, our work establishes the rationale and guiding principles for clinical translation of SCID-X1 gene editing and provides a framework for developing gene correction for other diseases. PMID- 29021166 TI - An analysis of IL-36 signature genes and individuals with IL1RL2 knockout mutations validates IL-36 as a psoriasis therapeutic target. AB - Interleukin (IL)-36alpha, IL-36beta, and IL-36gamma are innate mediators of acute epithelial inflammation. We sought to demonstrate that these cytokines are also required for the pathogenesis of plaque psoriasis, a common and chronic skin disorder, caused by abnormal T helper 17 (TH17) cell activation. To investigate this possibility, we first defined the genes that are induced by IL-36 cytokines in primary human keratinocytes. This enabled us to demonstrate a significant IL 36 signature among the transcripts that are up-regulated in plaque psoriasis and the susceptibility loci associated with the disease in genome-wide studies. Next, we investigated the impact of in vivo and ex vivo IL-36 receptor blockade using a neutralizing antibody or a recombinant antagonist. Both inhibitors had marked anti-inflammatory effects on psoriatic skin, demonstrated by statistically significant reductions in IL-17 expression, keratinocyte activation, and leukocyte infiltration. Finally, we explored the potential safety profile associated with IL-36 blockade by phenotyping 12 individuals carrying knockout mutations of the IL-36 receptor gene. We found that normal immune function was broadly preserved in these individuals, suggesting that IL-36 signaling inhibition would not substantially compromise host defenses. These observations, which integrate the results of transcriptomics and model system analysis, pave the way for early-stage clinical trials of IL-36 antagonists. PMID- 29021167 TI - High-density lipoprotein delivered after myocardial infarction increases cardiac glucose uptake and function in mice. AB - Protecting the heart after an acute coronary syndrome is a key therapeutic goal to support cardiac recovery and prevent progression to heart failure. A potential strategy is to target cardiac glucose metabolism at the early stages after ischemia when glycolysis is critical for myocyte survival. Building on our discovery that high-density lipoprotein (HDL) modulates skeletal muscle glucose metabolism, we now demonstrate that a single dose of reconstituted HDL (rHDL) delivered after myocardial ischemia increases cardiac glucose uptake, reduces infarct size, and improves cardiac remodeling in association with enhanced functional recovery in mice. These findings applied equally to metabolically normal and insulin-resistant mice. We further establish direct effects of HDL on cardiomyocyte glucose uptake, glycolysis, and glucose oxidation via the Akt signaling pathway within 15 min of reperfusion. These data support the use of infusible HDL preparations for management of acute coronary syndromes in the setting of primary percutaneous interventions. PMID- 29021168 TI - Functional ultrasound imaging of brain activity in human newborns. AB - Functional neuroimaging modalities are crucial for understanding brain function, but their clinical use is challenging. Recently, the use of ultrasonic plane waves transmitted at ultrafast frame rates was shown to allow for the spatiotemporal identification of brain activation through neurovascular coupling in rodents. Using a customized flexible and noninvasive headmount, we demonstrate in human neonates that real-time functional ultrasound imaging (fUSI) is feasible by combining simultaneous continuous video-electroencephalography (EEG) recording and ultrafast Doppler (UfD) imaging of the brain microvasculature. fUSI detected very small cerebral blood volume variations in the brains of neonates that closely correlated with two different sleep states defined by EEG recordings. fUSI was also used to assess brain activity in two neonates with congenital abnormal cortical development enabling elucidation of the dynamics of neonatal seizures with high spatiotemporal resolution (200 MUm for UfD and 1 ms for EEG). fUSI was then applied to track how waves of vascular changes were propagated during interictal periods and to determine the ictal foci of the seizures. Imaging the human brain with fUSI enables high-resolution identification of brain activation through neurovascular coupling and may provide new insights into seizure analysis and the monitoring of brain function. PMID- 29021169 TI - Punctuated invasion of water, ice, snow and terrestrial ecozones by segmented worms (Oligochaeta: Enchytraeidae: Mesenchytraeus). AB - Segmented worms (Annelida) are among the most successful animal inhabitants of extreme environments worldwide. An unusual group of enchytraeid oligochaetes of genus Mesenchytraeus are abundant in the Pacific northwestern region of North America and occupy geographically proximal ecozones ranging from low elevation rainforests and waterways to high altitude glaciers. Along this altitudinal transect, Mesenchytraeus representatives from disparate habitat types were collected and subjected to deep mitochondrial and nuclear phylogenetic analyses. Our data identify significant topological discordance among gene trees, and near equivalent interspecific divergence levels indicative of a rapid radiation event. Collectively, our results identify a Mesenchytraeus 'explosion' coincident with mountain building in the Pacific northwestern region that gave rise to closely related aquatic, ice, snow and terrestrial worms. PMID- 29021170 TI - A human model for primate personality. AB - In this article, I review the literature to determine how successful the latent trait theory model of personality from differential psychology has been for studying personality in non-human primates. The evidence for the success of this model is quite good, and offers insights and directions for personality research in primates and other animals. This, I conclude, stems from (i) the human trait model's simplicity, and (ii) the fact that the human differential model of personality developed in the face of harsh criticism, which led researchers to test and refine their models. PMID- 29021171 TI - Combined effects of night warming and light pollution on predator-prey interactions. AB - Interactions between multiple anthropogenic environmental changes can drive non additive effects in ecological systems, and the non-additive effects can in turn be amplified or dampened by spatial covariation among environmental changes. We investigated the combined effects of night-time warming and light pollution on pea aphids and two predatory ladybeetle species. As expected, neither night-time warming nor light pollution changed the suppression of aphids by the ladybeetle species that forages effectively in darkness. However, for the more-visual predator, warming and light had non-additive effects in which together they caused much lower aphid abundances. These results are particularly relevant for agriculture near urban areas that experience both light pollution and warming from urban heat islands. Because warming and light pollution can have non additive effects, predicting their possible combined consequences over broad spatial scales requires knowing how they co-occur. We found that night-time temperature change since 1949 covaried positively with light pollution, which has the potential to increase their non-additive effects on pea aphid control by 70% in US alfalfa. Our results highlight the importance of non-additive effects of multiple environmental factors on species and food webs, especially when these factors co-occur. PMID- 29021172 TI - Genital interactions during simulated copulation among marine mammals. AB - Genitalia are morphologically variable across many taxa and in physical contact during intromission, but little is known about how variation in form correlates with function during copulation. Marine mammals offer important insights into the evolutionary forces that act on genital morphology because they have diverse genitalia and are adapted to aquatic living and mating. Cetaceans have a fibroelastic penis and muscular vaginal folds, while pinnipeds have a baculum and lack vaginal folds. We examined copulatory fit in naturally deceased marine mammals to identify anatomical landmarks in contact during copulation and the potential depth of penile penetration into the vagina. Excised penises were artificially inflated to erection with pressurized saline and compared with silicone vaginal endocasts and within excised vaginas in simulated copulation using high-resolution, diffusible iodine-based, contrast-enhanced computed tomography. We found evidence suggestive of both congruent and antagonistic genital coevolution, depending on the species. We suggest that sexual selection influences morphological shape. This study improves our understanding of how mechanical interactions during copulation influence the shape of genitalia and affect fertility, and has broad applications to other taxa and species conservation. PMID- 29021173 TI - Heterochrony in the evolution of Trinidadian guppy offspring size: maturation along a uniform ontogenetic trajectory. AB - The size and maturity of Trinidadian guppy (Poecilia reticulata) offspring vary among populations adapted to environments of differential predation. Guppy offspring born to low-predation, high-competition environments are larger and more mature than their high-predation ancestors. Here we ask: what specific changes in developmental or birth timing occur to produce the larger, more mature neonates? We collected specimens across the perinatal window of development from five populations and quantified musculoskeletal maturation. We found that all populations undergo similar ontogenetic trajectories in skeletal and muscle acquisition; the only difference among populations is when neonates emerge along the trajectory. The smallest neonates are born with 20% of their skeleton ossified, whereas the largest neonates are born with over 70% of their skeleton ossified. The area of the major jaw-closing muscle is relatively larger in larger offspring, scaling with length as L2.5 The size range over which offspring are birthed among populations sits along the steepest part of the size-maturity relationship, which provides a large marginal increase in fitness for the high competition female. Because of the functional effects of producing more mature offspring at birth, offspring size may be the first and most critical life history trait selected upon in highly competitive environments. PMID- 29021174 TI - Nutritional geometry of paternal effects on embryo mortality. AB - Well-established causal links exist between maternal nutritional deficits and embryo health and viability. By contrast, environmental effects operating through the father that could influence embryo mortality have seldom been examined. Yet, ejaculates can require non-trivial resource allocation, and seminal plasma components are increasingly recognized to exert wide-ranging effects on females and offspring, so paternal dietary effects on the embryo should be expected. We test for effects of varying levels of protein (P), carbohydrate (C) and caloric load in adult male diet on embryo mortality in Drosophila melanogaster We demonstrate that macronutrient balance and caloric restriction exert significant effects, and that nutritional effects are more impactful when a prior mating has occurred. Once-mated males produced embryos with marginally elevated mortality under high-caloric densities and a 1 : 8 P : C ratio. In contrast, embryos produced by twice-mated males were significantly more likely to die under male caloric restriction, an outcome that may have resulted from shifts in ejaculate quality and/or epigenetic paternal effects. Body nutrient reserves were strongly and predictably altered by diet, and body condition, in turn, was negatively related to embryo mortality. Thus, sire nutritional history and resultant shifts in metabolic state predict embryo viability and post-fertilization fitness outcomes. PMID- 29021175 TI - Species identity and depth predict bleaching severity in reef-building corals: shall the deep inherit the reef? AB - Mass bleaching associated with unusually high sea temperatures represents one of the greatest threats to corals and coral reef ecosystems. Deeper reef areas are hypothesized as potential refugia, but the susceptibility of Scleractinian species over depth has not been quantified. During the most severe bleaching event on record, we found up to 83% of coral cover severely affected on Maldivian reefs at a depth of 3-5 m, but significantly reduced effects at 24-30 m. Analysis of 153 species' responses showed depth, shading and species identity had strong, significant effects on susceptibility. Overall, 73.3% of the shallow-reef assemblage had individuals at a depth of 24-30 m with reduced effects, potentially mitigating local extinction and providing a source of recruits for population recovery. Although susceptibility was phylogenetically constrained, species-level effects caused most lineages to contain some partially resistant species. Many genera showed wide variation between species, including Acropora, previously considered highly susceptible. Extinction risk estimates showed species and lineages of concern and those likely to dominate following repeated events. Our results show that deeper reef areas provide refuge for a large proportion of Scleractinian species during severe bleaching events and that the deepest occurring individuals of each population have the greatest potential to survive and drive reef recovery. PMID- 29021176 TI - Parsimony and maximum-likelihood phylogenetic analyses of morphology do not generally integrate uncertainty in inferring evolutionary history: a response to Brown et al. PMID- 29021177 TI - Men's preferences for women's body odours are not associated with human leucocyte antigen. AB - Body odours reportedly portray information about an individual's genotype at the major histocompatibility complex (MHC, called human leucocyte antigen, HLA, in humans). While there is strong experimental support for MHC-associated mating behaviour in animals, the situation in humans is more complex. A lot of effort has been spent on testing HLA-associated odour preferences of women. To date, only very few studies have looked at HLA-linked olfactory preferences in men and these studies have revealed inconsistent results. Here, we investigate men's HLA associated preferences for women's body odours. Importantly, and in contrast to previous studies, these odours were gathered at peak fertility (i.e. just before ovulation) when any HLA-associated odour preferences should be strongest. We scrutinized whether men's preference for women's body odours is influenced by (i) the number of shared HLA alleles between men and women, (ii) HLA heterozygosity, and (iii) the frequency of rare HLA alleles. We found that men could readily differentiate between odours they found attractive and odours they found less attractive, but that these preferences were not associated with HLA. Specifically, men did not prefer odours from women who are HLA dissimilar, HLA heterozygous, or who have rare HLA alleles. Together, these findings suggest that HLA has no effect on men's odour preferences. PMID- 29021178 TI - Evolutionary contribution to coexistence of competitors in microbial food webs. AB - The theory of species coexistence is a key concept in ecology that has received much attention. The role of rapid evolution for determining species coexistence is still poorly understood although evolutionary change on ecological time-scales has the potential to change almost any ecological process. The influence of evolution on coexistence can be especially pronounced in microbial communities where organisms often have large population sizes and short generation times. Previous work on coexistence has assumed that traits involved in resource use and species interactions are constant or change very slowly in terms of ecological time-scales. However, recent work suggests that these traits can evolve rapidly. Nevertheless, the importance of rapid evolution to coexistence has not been tested experimentally. Here, we show how rapid evolution alters the frequency of two bacterial competitors over time when grown together with specialist consumers (bacteriophages), a generalist consumer (protozoan) and all in combination. We find that consumers facilitate coexistence in a manner consistent with classic ecological theory. However, through disentangling the relative contributions of ecology (changes in consumer abundance) and evolution (changes in traits mediating species interactions) on the frequency of the two competitors over time, we find differences between the consumer types and combinations. Overall, our results indicate that the influence of evolution on species coexistence strongly depends on the traits and species interactions considered. PMID- 29021179 TI - Bayesian and likelihood phylogenetic reconstructions of morphological traits are not discordant when taking uncertainty into consideration: a comment on Puttick et al. AB - Puttick et al. (2017 Proc. R. Soc. B284, 20162290 (doi:10.1098/rspb.2016.2290)) performed a simulation study to compare accuracy among methods of inferring phylogeny from discrete morphological characters. They report that a Bayesian implementation of the Mk model (Lewis 2001 Syst. Biol.50, 913-925 (doi:10.1080/106351501753462876)) was most accurate (but with low resolution), while a maximum-likelihood (ML) implementation of the same model was least accurate. They conclude by strongly advocating that Bayesian implementations of the Mk model should be the default method of analysis for such data. While we appreciate the authors' attempt to investigate the accuracy of alternative methods of analysis, their conclusion is based on an inappropriate comparison of the ML point estimate, which does not consider confidence, with the Bayesian consensus, which incorporates estimation credibility into the summary tree. Using simulation, we demonstrate that ML and Bayesian estimates are concordant when confidence and credibility are comparably reflected in summary trees, a result expected from statistical theory. We therefore disagree with the conclusions of Puttick et al. and consider their prescription of any default method to be poorly founded. Instead, we recommend caution and thoughtful consideration of the model or method being applied to a morphological dataset. PMID- 29021180 TI - Bluetongue virus spread in Europe is a consequence of climatic, landscape and vertebrate host factors as revealed by phylogeographic inference. AB - Spatio-temporal patterns of the spread of infectious diseases are commonly driven by environmental and ecological factors. This is particularly true for vector borne diseases because vector populations can be strongly affected by host distribution as well as by climatic and landscape variables. Here, we aim to identify environmental drivers for bluetongue virus (BTV), the causative agent of a major vector-borne disease of ruminants that has emerged multiple times in Europe in recent decades. In order to determine the importance of climatic, landscape and host-related factors affecting BTV diffusion across Europe, we fitted different phylogeographic models to a dataset of 113 time-stamped and geo referenced BTV genomes, representing multiple strains and serotypes. Diffusion models using continuous space revealed that terrestrial habitat below 300 m altitude, wind direction and higher livestock densities were associated with faster BTV movement. Results of discrete phylogeographic analysis involving generalized linear models broadly supported these findings, but varied considerably with the level of spatial partitioning. Contrary to common perception, we found no evidence for average temperature having a positive effect on BTV diffusion, though both methodological and biological reasons could be responsible for this result. Our study provides important insights into the drivers of BTV transmission at the landscape scale that could inform predictive models of viral spread and have implications for designing control strategies. PMID- 29021181 TI - Variability in larval gut pH regulation defines sensitivity to ocean acidification in six species of the Ambulacraria superphylum. AB - The unusual rate and extent of environmental changes due to human activities may exceed the capacity of marine organisms to deal with this phenomenon. The identification of physiological systems that set the tolerance limits and their potential for phenotypic buffering in the most vulnerable ontogenetic stages become increasingly important to make large-scale projections. Here, we demonstrate that the differential sensitivity of non-calcifying Ambulacraria (echinoderms and hemichordates) larvae towards simulated ocean acidification is dictated by the physiology of their digestive systems. Gastric pH regulation upon experimental ocean acidification was compared in six species of the superphylum Ambulacraria. We observed a strong correlation between sensitivity to ocean acidification and the ability to regulate gut pH. Surprisingly, species with tightly regulated gastric pH were more sensitive to ocean acidification. This study provides evidence that strict maintenance of highly alkaline conditions in the larval gut of Ambulacraria early life stages may dictate their sensitivity to decreases in seawater pH. These findings highlight the importance of identifying and understanding pH regulatory systems in marine larval stages that may contribute to substantial energetic challenges under near-future ocean acidification scenarios. PMID- 29021182 TI - Evolution in temperature-dependent phytoplankton traits revealed from a sediment archive: do reaction norms tell the whole story? AB - The high evolutionary potential of phytoplankton species allows them to rapidly adapt to global warming. Adaptations may occur in temperature-dependent traits, such as growth rate, cell size and life cycle processes. Using resurrection experiments with resting stages from living sediment archives, it is possible to investigate whether adaptation occurred. For this study, we revived resting cysts of the spring bloom dinoflagellate Apocalathium malmogiense from recent and 100 year-old sediment layers from the Gulf of Finland, and compared temperature dependent traits of recent and historic strains along a temperature gradient. We detected no changes in growth rates and cell sizes but a significant difference between recent and historic strains regarding resting cyst formation. The encystment rate of recent strains was significantly lower compared with historic strains which we interpret as an indication of adaptation to higher and more rapidly increasing spring temperatures. Low encystment rates may allow for bloom formation even if the threshold temperature inducing a loss of actively growing cells through resting cyst formation is exceeded. Our findings reveal that phenotypic responses of phytoplankton to changing temperature conditions may include hidden traits such as life cycle processes and their regulation mechanisms. This study emphasizes the potential of living sediment archives to investigate plankton responses and adaptation to global warming. PMID- 29021184 TI - Radiologist shortage leaves patient care at risk, warns royal college. PMID- 29021183 TI - The evolution of cooperation in simple molecular replicators. AB - In order for the first genomes to evolve, independent replicators had to act cooperatively, with some reducing their own replication rate to help copy others. It has been argued that limited diffusion explains this early cooperation. However, social evolution models have shown that limited diffusion on its own often does not favour cooperation. Here we model early replicators using social evolution tools. We show that: (i) replicators can be considered to be cooperating as a result of kin selection; (ii) limited diffusion on its own does not favour cooperation; and (iii) the addition of overlapping generations, probably a general trait of molecular replicators, promotes cooperation. These results suggest key life-history features in the evolution of the genome and that the same factors can favour cooperation across the entire tree of life. PMID- 29021185 TI - Outsourcing review of GP referrals to private companies: who ultimately gains? PMID- 29021186 TI - Torture victims were unlawfully detained despite doctors' concerns. PMID- 29021187 TI - Complexity of primary care is barrier to physician associates, say GPs. PMID- 29021188 TI - Is follow up chest X-ray required in children with round pneumonia? PMID- 29021189 TI - Presence of atopy increases the risk of asthma relapse. AB - OBJECTIVES: To describe the point prevalence of respiratory viruses/atypical bacteria using PCR and evaluate the impact of respiratory viruses/atypical bacteria and atopy on acute severity and clinical recovery in children with hospitalised and non-hospitalised asthma exacerbations. DESIGN: This was a prospective study performed during 2009-2011. SETTING: The study was performed in the emergency departments of two hospitals. PATIENTS: 244 children aged 2-16 years presenting with acute asthma to the emergency departments were recruited. A nasopharyngeal aspirate and allergen skin prick test were performed. MAIN OUTCOME MEASURES: The outcomes were divided into (1) acute severity outcomes (Australian National Asthma Council assessment, hospitalisation, Functional Severity Scale, Acute Asthma Score, asthma quality of life questionnaires for parents (PACQLQ) on presentation, asthma diary scores (ADS) on presentation and length of hospitalisation) and (2) recovery outcomes (PACQLQ for 21 days, ADS for 14 days and representation for asthma for 21 days). RESULTS: PCR for viruses/atypical bacteria was positive in 81.7% of children (75.1% human rhinovirus, codetection in 14.2%). Mycoplasma pneumoniae and Chlamydophila pneumoniae were rarely detected. The presence of micro-organisms had little impact on acute asthma or recovery outcomes. Children with atopy were significantly more likely to relapse and represent for medical care by day 14 (OR 1.11, 95% CI 1.00 to 1.23). CONCLUSIONS: The presence of any viruses is associated with asthma exacerbations but does not appear to influence asthma recovery. In contrast, atopy is associated with asthma relapse. M. pneumoniae and C. pneumoniae are rare triggers of acute asthma in young children. PMID- 29021190 TI - Spending on junk food advertising is nearly 30 times what government spends on promoting healthy eating. PMID- 29021192 TI - Orderly recruitment of thermoeffectors in resting humans. AB - The recruitment of thermoeffectors, including thermoregulatory behavior, relative to changes in body temperature has not been quantified in humans. We tested the hypothesis that changes in skin blood flow, behavior, and sweating or metabolic rate are initiated with increasing changes in mean skin temperature (Tskin) in resting humans. While wearing a water-perfused suit, 12 healthy young adults underwent heat (Heat) and cold stress (Cold) that induced gradual changes in Tskin. Subjects controlled the temperature of their dorsal neck to their perceived thermal comfort. Thus neck skin temperature provided an index of thermoregulatory behavior. Neck skin temperature (Tskin), core temperature (Tcore), metabolic rate, sweat rate, and nonglabrous skin blood flow were measured continually. Data were analyzed using segmental regression analysis, providing an index of thermoeffector activation relative to changes in Tskin. In Heat, increases in skin blood flow were observed with the smallest elevations in Tskin ( P < 0.01). Thermal behavior was initiated with an increase in Tskin of 2.4 +/- 1.3 degrees C (mean +/- SD, P = 0.04), while sweating was observed with further elevations in Tskin (3.4 +/- 0.5 degrees C, P = 0.04), which coincided with increases in Tcore ( P = 0.98). In Cold, reductions in skin blood flow occurred with the smallest decrease in Tskin ( P < 0.01). Thermal behavior was initiated with a Tskin decrease of 1.5 +/- 1.3 degrees C, while metabolic rate ( P = 0.10) and Tcore ( P = 0.76) did not change throughout. These data indicate that autonomic and behavioral thermoeffectors are recruited in coordination with one another and likely in an orderly manner relative to the comparative physiological cost. PMID- 29021193 TI - Domestic violence is poorly covered in medical training, study finds. PMID- 29021191 TI - Enhancement of phrenic long-term facilitation following repetitive acute intermittent hypoxia is blocked by the glycolytic inhibitor 2-deoxyglucose. AB - Moderate acute intermittent hypoxia (mAIH) elicits a form of respiratory motor plasticity known as phrenic long-term facilitation (pLTF). Preconditioning with modest protocols of chronic intermittent hypoxia enhances pLTF, demonstrating pLTF metaplasticity. Since "low-dose" protocols of repetitive acute intermittent hypoxia (rAIH) show promise as a therapeutic modality to restore respiratory (and nonrespiratory) motor function in clinical disorders with compromised breathing, we tested 1) whether preconditioning with a mild rAIH protocol enhances pLTF and hypoglossal (XII) LTF and 2) whether the enhancement is regulated by glycolytic flux. In anesthetized, paralyzed, and ventilated adult male Lewis rats, mAIH (three 5-min episodes of 10% O2) elicited pLTF (pLTF at 60 min post-mAIH: 49 +/- 5% baseline). rAIH preconditioning (ten 5-min episodes of 11% O2/day with 5-min normoxic intervals, 3 times per week, for 4 wk) significantly enhanced pLTF (100 +/- 16% baseline). XII LTF was unaffected by rAIH. When glycolytic flux was inhibited by 2-deoxy-d-glucose (2-DG) administered via drinking water (~80 mg.kg 1.day-1), pLTF returned to normal levels (58 +/- 8% baseline); 2-DG had no effect on pLTF in normoxia-pretreated rats (59 +/- 7% baseline). In ventral cervical (C4/5) spinal homogenates, rAIH increased inducible nitric oxide synthase mRNA vs. normoxic controls, an effect blocked by 2-DG. However, there were no detectable effects of rAIH or 2-DG on several molecules associated with phrenic motor plasticity, including serotonin 2A, serotonin 7, brain-derived neurotrophic factor, tropomyosin receptor kinase B, or VEGF mRNA. We conclude that modest, but prolonged, rAIH elicits pLTF metaplasticity and that a drug known to inhibit glycolytic flux (2-DG) blocks pLTF enhancement. PMID- 29021194 TI - NHS pay cap has been scrapped, says Hunt. PMID- 29021195 TI - Data, data everywhere: the challenges of personalised medicine. PMID- 29021197 TI - Allyson Pollock: Tackling risks and harms. PMID- 29021196 TI - NF-kappaB-dependent upregulation of (pro)renin receptor mediates high-NaCl induced apoptosis in mouse inner medullary collecting duct cells. AB - (Pro)renin receptor (PRR), a component of the renin-angiotensin system, has emerged as a new regulator of collecting duct function. The present study was designed to investigate the role of PRR in high salt-induced apoptosis in cultured mouse inner medullary collecting duct cells, mIMCD-K2 cells. Exposure to high NaCl at 550 mosM/kgH2O increased PRR protein abundance, as did exposure to mannitol, sodium gluconate, or choline chloride. This was accompanied by upregulation of the abundance of phosphorylated NF-kappaB p65 protein. NF-kappaB inhibition with QNZ, caffeic acid phenethyl ester, or small interfering RNA (siRNA)-mediated silencing of NF-kappaB p65 attenuated high-NaCl-induced PRR upregulation. Exposure to high salt for 24 h induced apoptosis, as assessed by immunoblotting and immunocytochemistry analysis of cleaved caspase-3 and flow cytometry analysis of the number of apoptotic cells. High-NaCl-induced apoptosis was attenuated by a PRR decoy inhibitor, PRO20, or siRNA-mediated silencing of NF kappaB p65. These results show that induction of PRR expression by exposure to high NaCl occurs through activation of NF-kappaB, thus contributing to cell apoptosis. PMID- 29021199 TI - Communicating with relatives. PMID- 29021200 TI - David Oliver: How much information should patients' families expect on acute wards? PMID- 29021201 TI - High Court will hear class action against metal-on-metal hip manufacturer. PMID- 29021202 TI - Adjunctive antibiotics for drained skin abscesses improve clinical cure rate. PMID- 29021203 TI - Sixty seconds on . . . concurrent surgery. PMID- 29021204 TI - The fourth pillar: Despite some setbacks in the clinic, immunotherapy has made notable progress toward becoming an additional therapeutic option against cancer. PMID- 29021205 TI - The ERC: from before then to anniversary celebrations. PMID- 29021206 TI - RADX interacts with single-stranded DNA to promote replication fork stability. AB - Single-stranded DNA (ssDNA) regions form as an intermediate in many DNA associated transactions. Multiple cellular proteins interact with ssDNA via the oligonucleotide/oligosaccharide-binding (OB) fold domain. The heterotrimeric, multi-OB fold domain-containing Replication Protein A (RPA) complex has an essential genome maintenance role, protecting ssDNA regions from nucleolytic degradation and providing a recruitment platform for proteins involved in responses to replication stress and DNA damage. Here, we identify the uncharacterized protein RADX (CXorf57) as an ssDNA-binding factor in human cells. RADX binds ssDNA via an N-terminal OB fold cluster, which mediates its recruitment to sites of replication stress. Deregulation of RADX expression and ssDNA binding leads to enhanced replication fork stalling and degradation, and we provide evidence that a balanced interplay between RADX and RPA ssDNA-binding activities is critical for avoiding these defects. Our findings establish RADX as an important component of cellular pathways that promote DNA replication integrity under basal and stressful conditions by means of multiple ssDNA-binding proteins. PMID- 29021207 TI - Impact of Lifestyle and Metformin Interventions on the Risk of Progression to Diabetes and Regression to Normal Glucose Regulation in Overweight or Obese People With Impaired Glucose Regulation. AB - OBJECTIVE: Both lifestyle and metformin interventions can delay or prevent progression to type 2 diabetes mellitus (DM) in people with impaired glucose regulation, but there is considerable interindividual variation in the likelihood of receiving benefit. Understanding an individual's 3-year risk of progressing to DM and regressing to normal glucose regulation (NGR) might facilitate benefit based tailored treatment. RESEARCH DESIGN AND METHODS: We used the values of 19 clinical variables measured at the Diabetes Prevention Program (DPP) baseline evaluation and Cox proportional hazards models to assess the 3-year risk of progression to DM and regression to NGR separately for DPP lifestyle, metformin, and placebo participants who were adherent to the interventions. Lifestyle participants who lost >=5% of their initial body weight at 6 months and metformin and placebo participants who reported taking >=80% of their prescribed medication at the 6-month follow-up were defined as adherent. RESULTS: Eleven of 19 clinical variables measured at baseline predicted progression to DM, and 6 of 19 predicted regression to NGR. Compared with adherent placebo participants at lowest risk of developing diabetes, participants at lowest risk of developing diabetes who adhered to a lifestyle intervention had an 8% absolute risk reduction (ARR) of developing diabetes and a 35% greater absolute likelihood of reverting to NGR. Participants at lowest risk of developing diabetes who adhered to a metformin intervention had no reduction in their risk of developing diabetes and a 17% greater absolute likelihood of reverting to NGR. Participants at highest risk of developing DM who adhered to a lifestyle intervention had a 39% ARR of developing diabetes and a 24% greater absolute likelihood of reverting to NGR, whereas those who adhered to the metformin intervention had a 25% ARR of developing diabetes and an 11% greater absolute likelihood of reverting to NGR. CONCLUSIONS: Unlike our previous analyses that sought to explain population risk, these analyses evaluate individual risk. The models can be used by overweight and obese adults with fasting hyperglycemia and impaired glucose tolerance to facilitate personalized decision-making by allowing them to explicitly weigh the benefits and feasibility of the lifestyle and metformin interventions. PMID- 29021210 TI - New-generation chromoendoscopy may increase confidence in the DISCARD2 study. PMID- 29021208 TI - Constitutive role of the Fanconi anemia D2 gene in the replication stress response. AB - In response to DNA cross-linking damage, the Fanconi anemia (FA) core complex activates the FA pathway by monoubiquitinating Fanconi anemia complementation group D2 (FANCD2) for the initiation of the nucleolytic processing of the DNA cross-links and stabilization of stalled replication forks. Given that all the classic FA proteins coordinately monoubiquitinate FANCD2, it is unclear why losses of individual classic FA genes yield varying cellular sensitivities to cross-linking damage. To address this question, we generated cellular knock-out models of FA core complex components and FANCD2 and found that FANCD2-null mutants display higher levels of spontaneous chromosomal damage and hypersensitivity to replication-blocking lesions than Fanconi anemia complementation group L (FANCL)-null mutants, suggesting that FANCD2 provides a basal level of DNA protection countering endogenous lesions in the absence of monoubiquitination. FANCD2's ubiquitination-independent function is likely involved in optimized recruitment of nucleolytic activities for the processing and protection of stressed replication forks. Our results reveal that FANCD2 has a ubiquitination-independent role in countering endogenous levels of replication stress, a function that is critical for the maintenance of genomic stability. PMID- 29021209 TI - Transcription profiling suggests that mitochondrial topoisomerase IB acts as a topological barrier and regulator of mitochondrial DNA transcription. AB - Mitochondrial DNA (mtDNA) is essential for cell viability because it encodes subunits of the respiratory chain complexes. Mitochondrial topoisomerase IB (TOP1MT) facilitates mtDNA replication by removing DNA topological tensions produced during mtDNA transcription, but it appears to be dispensable. To test whether cells lacking TOP1MT have aberrant mtDNA transcription, we performed mitochondrial transcriptome profiling. To that end, we designed and implemented a customized tiling array, which enabled genome-wide, strand-specific, and simultaneous detection of all mitochondrial transcripts. Our technique revealed that Top1mt KO mouse cells process the mitochondrial transcripts normally but that protein-coding mitochondrial transcripts are elevated. Moreover, we found discrete long noncoding RNAs produced by H-strand transcription and encompassing the noncoding regulatory region of mtDNA in human and murine cells and tissues. Of note, these noncoding RNAs were strongly up-regulated in the absence of TOP1MT. In contrast, 7S DNA, produced by mtDNA replication, was reduced in the Top1mt KO cells. We propose that the long noncoding RNA species in the D-loop region are generated by the extension of H-strand transcripts beyond their canonical stop site and that TOP1MT acts as a topological barrier and regulator for mtDNA transcription and D-loop formation. PMID- 29021211 TI - PFMG1 promotes osteoblast differentiation and prevents osteoporotic bone loss. AB - Nacre is a widely used mineral medicine that has been reported to have beneficial effects in bone remodeling without an increase in inflammation. Water-soluble nacre matrix has been demonstrated to be responsible for the effect, yet core active ingredients are unknown. Pinctada fucata mantle gene 1 (PFMG1) was first discovered in the mantle tissue of Pinctada fucata. The protein has 2 EF-hands, a calcium-binding domain. PFMG1 protein can affect the growth of calcium carbonate crystals in vitro. Here, we demonstrate that PFMG1 affects cell-cycle distribution and promotes preosteoblast proliferation. PFMG1 accelerates preosteoblast differentiation and extracellular matrix mineralization. During the differentiation process, PFMG1 increases the expression level of osteoblastic marker genes and activates the Erk signaling pathway. PFMG1 also accelerates calcium crystal aggregation in culture medium and suppresses osteoclast formation. Moreover, PFMG1 prevents bone loss caused by ovariectomy. RNA sequencing analysis demonstrated that PFMG1 stimulates genes that are associated with tissue development and ossification, which indicated new genes that function in bone remodeling. Our findings demonstrate the therapeutic potential of PFMG1 from nacre as a novel medicine for osteoporosis.-Li, L., Wang, P., Hu, K., Wang, X., Cai, W., Ai, C., Liu, S., Wang, Z. PFMG1 promotes osteoblast differentiation and prevents osteoporotic bone loss. PMID- 29021212 TI - Protein SUMOylation modification and its associations with disease. AB - SUMOylation, as a post-translational modification, plays essential roles in various biological functions including cell growth, migration, cellular responses to stress and tumorigenesis. The imbalance of SUMOylation and deSUMOylation has been associated with the occurrence and progression of various diseases. Herein, we summarize and discuss the signal crosstalk between SUMOylation and ubiquitination of proteins, protein SUMOylation relations with several diseases, and the identification approaches for SUMOylation site. With the continuous development of bioinformatics and mass spectrometry, several accurate and high throughput methods have been implemented to explore small ubiquitin-like modifier modified substrates and sites, which is helpful for deciphering protein SUMOylation-mediated molecular mechanisms of disease. PMID- 29021213 TI - Whats, hows and whys of programmed DNA elimination in Tetrahymena. AB - Programmed genome rearrangements in ciliates provide fascinating examples of flexible epigenetic genome regulations and important insights into the interaction between transposable elements (TEs) and host genomes. DNA elimination in Tetrahymena thermophila removes approximately 12 000 internal eliminated sequences (IESs), which correspond to one-third of the genome, when the somatic macronucleus (MAC) differentiates from the germline micronucleus (MIC). More than half of the IESs, many of which show high similarity to TEs, are targeted for elimination in cis by the small RNA-mediated genome comparison of the MIC to the MAC. Other IESs are targeted for elimination in trans by the same small RNAs through repetitive sequences. Furthermore, the small RNA-heterochromatin feedback loop ensures robust DNA elimination. Here, we review an updated picture of the DNA elimination mechanism, discuss the physiological and evolutionary roles of DNA elimination, and outline the key questions that remain unanswered. PMID- 29021214 TI - Casein kinase II phosphorylation of cyclin F at serine 621 regulates the Lys48 ubiquitylation E3 ligase activity of the SCF(cyclin F) complex. AB - Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder that is characterized by progressive weakness, paralysis and muscle loss often resulting in patient death within 3-5 years of diagnosis. Recently, we identified disease linked mutations in the CCNF gene, which encodes the cyclin F protein, in cohorts of patients with familial and sporadic ALS and frontotemporal dementia (FTD) (Williams KL et al 2016 Nat. Commun.7, 11253. (doi:10.1038/ncomms11253)). Cyclin F is a part of a Skp1-Cul-F-box (SCF) E3 ubiquitin-protein ligase complex and is responsible for ubiquitylating proteins for degradation by the proteasome. In this study, we investigated the phosphorylation status of cyclin F and the effect of the serine to glycine substitution at site 621 (S621G) on E3 ligase activity. This specific mutation (S621G) was found in a multi-generational Australian family with ALS/FTD. We identified seven phosphorylation sites on cyclin F, of which five are newly reported including Ser621. These phosphorylation sites were mostly identified within the PEST (proline, glutamic acid, serine and threonine) sequence located at the C-terminus of cyclin F. Additionally, we determined that casein kinase II (CK2) can phosphorylate Ser621 and thereby regulate the E3 ligase activity of the SCF(cyclin F) complex. Furthermore, the S621G mutation in cyclin F prevents phosphorylation by CK2 and confers elevated Lys48 ubiquitylation activity, a hallmark of ALS/FTD pathology. These findings highlight the importance of phosphorylation in regulating the activity of the SCF(cyclin F) E3 ligase complex that can affect downstream processes and may lead to defective motor neuron development, neuron degeneration and ultimately ALS and FTD. PMID- 29021217 TI - Impact of Patient-Provider Race, Ethnicity, and Gender Concordance on Cancer Screening: Findings from Medical Expenditure Panel Survey. AB - Background: Racial and ethnic minorities experience lower rates of cancer screening compared with non-Hispanic whites (NHWs). Previous studies evaluating the role of patient-provider race, ethnicity, or gender concordance in cancer screening have been inconclusive.Methods: In a cross-sectional analysis using the Medical Expenditure Panel Survey (MEPS), data from 2003 to 2010 were assessed for associations between patient-provider race, ethnicity, and/or gender concordance and, screening (American Cancer Society guidelines) for breast, cervical, and colorectal cancer. Multivariable logistic analyses were conducted to examine associations of interest.Results: Of the 32,041 patient-provider pairs in our analysis, more than 60% of the patients were NHW, 15% were non-Hispanic black (NHB), and 15% were Hispanic. Overall, patients adherent to cancer screening were more likely to be non-Hispanic, better educated, married, wealthier, and privately insured. Patient-provider gender discordance was associated with lower rates of breast [OR, 0.83; 95% confidence interval (CI), 0.76-0.90], cervical (OR, 0.83; 95% CI, 0.76-0.91), and colorectal cancer (OR, 0.84; 95% CI, 0.79 0.90) screening in all patients. This association was also significant after adjusting for racial and/or ethnic concordance. Conversely, among NHWs and NHBs, patient-provider racial and/or ethnic concordance was not associated with screening. Among Hispanics, patient-provider ethnic discordant pairs had higher breast (58% vs. 52%) and colorectal cancer (45% vs. 39%) screening rates compared with concordant pairs.Conclusions: Patient-provider gender concordance positively affected cancer screening. Patient-provider ethnic concordance was inversely associated with receipt of cancer screening among Hispanics. This counter intuitive finding requires further study.Impact: Our findings highlight the importance of gender concordance in improving cancer screening rates. Cancer Epidemiol Biomarkers Prev; 26(12); 1804-11. (c)2017 AACR. PMID- 29021215 TI - Dual role of the chromatin-binding factor PHF13 in the pre- and post-integration phases of HIV-1 replication. AB - Viruses interact with multiple host cell factors. Some of these are required to promote viral propagation, others have roles in inhibiting infection. Here, we delineate the function of the cellular factor PHF13 (or SPOC1), a putative HIV-1 restriction factor. Early in the HIV-1 replication cycle PHF13 increased the number of integrated proviral copies and the number of infected cells. However, after HIV-1 integration, high levels of PHF13 suppressed viral gene expression. The antiviral activity of PHF13 is counteracted by the viral accessory protein Vpr, which mediates PHF13 degradation. Altogether, the transcriptional master regulator and chromatin binding protein PHF13 does not have purely repressive effects on HIV-1 replication, but also promotes viral integration. By the functional characterization of the dual role of PHF13 during the HIV-1 replication cycle, we reveal a surprising and intricate mechanism through which HIV-1 might regulate the switch from integration to viral gene expression. Furthermore, we identify PHF13 as a cellular target specifically degraded by HIV 1 Vpr. PMID- 29021216 TI - Multiple interactions are involved in a highly specific association of the Mod(mdg4)-67.2 isoform with the Su(Hw) sites in Drosophila. AB - The best-studied Drosophila insulator complex consists of two BTB-containing proteins, the Mod(mdg4)-67.2 isoform and CP190, which are recruited to the chromatin through interactions with the DNA-binding Su(Hw) protein. It was shown previously that Mod(mdg4)-67.2 is critical for the enhancer-blocking activity of the Su(Hw) insulators and it differs from more than 30 other Mod(mdg4) isoforms by the C-terminal domain required for a specific interaction with Su(Hw) only. The mechanism of the highly specific association between Mod(mdg4)-67.2 and Su(Hw) is not well understood. Therefore, we have performed a detailed analysis of domains involved in the interaction of Mod(mdg4)-67.2 with Su(Hw) and CP190. We found that the N-terminal region of Su(Hw) interacts with the glutamine-rich domain common to all the Mod(mdg4) isoforms. The unique C-terminal part of Mod(mdg4)-67.2 contains the Su(Hw)-interacting domain and the FLYWCH domain that facilitates a specific association between Mod(mdg4)-67.2 and the CP190/Su(Hw) complex. Finally, interaction between the BTB domain of Mod(mdg4)-67.2 and the M domain of CP190 has been demonstrated. By using transgenic lines expressing different protein variants, we have shown that all the newly identified interactions are to a greater or lesser extent redundant, which increases the reliability in the formation of the protein complexes. PMID- 29021218 TI - Transcriptomic Analysis of Octanoic Acid Response in Drosophila sechellia Using RNA-Sequencing. AB - The dietary specialist fruit fly Drosophila sechellia has evolved to specialize on the toxic fruit of its host plant Morinda citrifolia Toxicity of Morinda fruit is primarily due to high levels of octanoic acid (OA). Using RNA interference (RNAi), prior work found that knockdown of Osiris family genes Osiris 6 (Osi6), Osi7, and Osi8 led to increased susceptibility to OA in adult D. melanogaster flies, likely representing genes underlying a Quantitative Trait Locus (QTL) for OA resistance in D. sechellia While genes in this major effect locus are beginning to be revealed, prior work has shown at least five regions of the genome contribute to OA resistance. Here, we identify new candidate OA resistance genes by performing differential gene expression analysis using RNA-sequencing (RNA-seq) on control and OA-exposed D. sechellia flies. We found 104 significantly differentially expressed genes with annotated orthologs in D. melanogaster, including six Osiris gene family members, consistent with previous functional studies and gene expression analyses. Gene ontology (GO) term enrichment showed significant enrichment for cuticle development in upregulated genes and significant enrichment of immune and defense responses in downregulated genes, suggesting important aspects of the physiology of D. sechellia that may play a role in OA resistance. In addition, we identified five candidate OA resistance genes that potentially underlie QTL peaks outside of the major effect region, representing promising new candidate genes for future functional studies. PMID- 29021220 TI - An apicosome initiates self-organizing morphogenesis of human pluripotent stem cells. AB - Human pluripotent stem cells (hPSCs) self-organize into apicobasally polarized cysts, reminiscent of the lumenal epiblast stage, providing a model to explore key morphogenic processes in early human embryos. Here, we show that apical polarization begins on the interior of single hPSCs through the dynamic formation of a highly organized perinuclear apicosome structure. The membrane surrounding the apicosome is enriched in apical markers and displays microvilli and a primary cilium; its lumenal space is rich in Ca2+ Time-lapse imaging of isolated hPSCs reveals that the apicosome forms de novo in interphase, retains its structure during mitosis, is asymmetrically inherited after mitosis, and relocates to the recently formed cytokinetic plane, where it establishes a fully polarized lumen. In a multicellular aggregate of hPSCs, intracellular apicosomes from multiple cells are trafficked to generate a common lumenal cavity. Thus, the apicosome is a unique preassembled apical structure that can be rapidly used in single or clustered hPSCs to initiate self-organized apical polarization and lumenogenesis. PMID- 29021222 TI - The perivascular pathways for influx of cerebrospinal fluid are most efficient in the midbrain. AB - Although there are no conventional lymphatic vessels in the brain, fluid and solutes drain along basement membranes (BMs) of cerebral capillaries and arteries towards the subarachnoid space and cervical lymph nodes. Convective influx/glymphatic entry of the cerebrospinal fluid (CSF) into the brain parenchyma occurs along the pial-glial BMs of arteries. This project tested the hypotheses that pial-glial BM of arteries are thicker in the midbrain, allowing more glymphatic entry of CSF. The in vivo MRI and PET images were obtained from a 4.2-year-old dog, whereas the post-mortem electron microscopy was performed in a 12-year-old dog. We demonstrated a significant increase in the thickness of the pial-glial BM in the midbrain compared with the same BM in different regions of the brain and an increase in the convective influx of fluid from the subarachnoid space. These results are highly significant for the intrathecal drug delivery into the brain, indicating that the midbrain is better equipped for convective influx/glymphatic entry of the CSF. PMID- 29021221 TI - Cancer-associated fibroblasts promote directional cancer cell migration by aligning fibronectin. AB - Cancer-associated fibroblasts (CAFs) are major components of the carcinoma microenvironment that promote tumor progression. However, the mechanisms by which CAFs regulate cancer cell migration are poorly understood. In this study, we show that fibronectin (Fn) assembled by CAFs mediates CAF-cancer cell association and directional migration. Compared with normal fibroblasts, CAFs produce an Fn-rich extracellular matrix with anisotropic fiber orientation, which guides the cancer cells to migrate directionally. CAFs align the Fn matrix by increasing nonmuscle myosin II- and platelet-derived growth factor receptor alpha-mediated contractility and traction forces, which are transduced to Fn through alpha5beta1 integrin. We further show that prostate cancer cells use alphav integrin to migrate efficiently and directionally on CAF-derived matrices. We demonstrate that aligned Fn is a prominent feature of invasion sites in human prostatic and pancreatic carcinoma samples. Collectively, we present a new mechanism by which CAFs organize the Fn matrix and promote directional cancer cell migration. PMID- 29021219 TI - Stochastic Community Assembly: Does It Matter in Microbial Ecology? AB - Understanding the mechanisms controlling community diversity, functions, succession, and biogeography is a central, but poorly understood, topic in ecology, particularly in microbial ecology. Although stochastic processes are believed to play nonnegligible roles in shaping community structure, their importance relative to deterministic processes is hotly debated. The importance of ecological stochasticity in shaping microbial community structure is far less appreciated. Some of the main reasons for such heavy debates are the difficulty in defining stochasticity and the diverse methods used for delineating stochasticity. Here, we provide a critical review and synthesis of data from the most recent studies on stochastic community assembly in microbial ecology. We then describe both stochastic and deterministic components embedded in various ecological processes, including selection, dispersal, diversification, and drift. We also describe different approaches for inferring stochasticity from observational diversity patterns and highlight experimental approaches for delineating ecological stochasticity in microbial communities. In addition, we highlight research challenges, gaps, and future directions for microbial community assembly research. PMID- 29021226 TI - Attenuation of accelerated renal cystogenesis in Pkd1 mice by renin-angiotensin system blockade. AB - The intrarenal renin angiotensin system (RAS) is activated in polycystic kidney disease. We have recently shown in the Pkd1 mouse that Gen 2 antisense oligonucleotide (ASO), which suppresses angiotensinogen (Agt) synthesis, is efficacious in slowing kidney cyst formation compared with lisinopril. The aim of this current study was to determine 1) if unilateral nephrectomy accelerates cystogenesis in Pkd1 mice (as previously shown in cilia knockout mice) and 2) whether Agt ASO can slow the progression in this accelerated cystic mouse model. Adult Pkd1 conditional floxed allele mice expressing cre were administered tamoxifen, resulting in global knockout of Pkd1. Three weeks after tamoxifen injection, mice underwent left unilateral nephrectomy. Mice were then treated with Agt ASO (75 mg/kg per week) or aliskiren (20 mg/kg per day)+Agt ASO or control for 8 wk. Unilateral nephrectomy accelerated kidney cyst formation compared with nonnephrectomized mice. Both Agt ASO and Aliskiren+Agt ASO treatments significantly reduced plasma and urinary Agt levels. Blood pressure was lowest in Aliskiren+Agt ASO mice among all treatment groups, and the control group had the highest blood pressure. All mice developed significant kidney cysts at 8 wk after nephrectomy, but Agt ASO and Aliskiren+Agt ASO groups had fewer kidney cysts than controls. Renal pAkt, pS6 levels, and apoptosis were significantly suppressed in those receiving Agt ASO compared with controls. These results indicate that suppressing Agt using an ASO slowed the progression of accelerated cystic kidney disease induced by unilateral nephrectomy in Pkd1 mice by suppressing intrarenal RAS, mammalian target of rapamycin pathway, and cell proliferation. PMID- 29021225 TI - ATP induces PAD4 in renal proximal tubule cells via P2X7 receptor activation to exacerbate ischemic AKI. AB - We previously demonstrated that renal tubular peptidylarginine deiminase-4 (PAD4) is induced after ischemia-reperfusion (IR) injury and this induction of PAD4 exacerbates ischemic acute kidney injury (AKI) by promoting renal tubular inflammation and neutrophil infiltration. However, the mechanisms of renal tubular PAD4 induction after IR remain unknown. Here, we tested the hypothesis that ATP, a proinflammatory danger-associated molecular pattern (DAMP) ligand released from necrotic cells after IR injury, induces renal tubular PAD4 and exacerbates ischemic AKI via P2 purinergic receptor activation. ATP as well as ATPgammaS (a nonmetabolizable ATP analog) induced PAD4 mRNA, protein, and activity in human and mouse renal proximal tubule cells. Supporting the hypothesis that ATP induces renal tubular PAD4 via P2X7 receptor activation, A804598 (a selective P2X7 receptor antagonist) blocked the ATP-mediated induction of renal tubular PAD4 whereas BzATP (a selective P2X7 receptor agonist) mimicked the effects of ATP by inducing renal tubular PAD4 expression and activity. Moreover, ATP-mediated calcium influx in renal proximal tubule cells was blocked by A804598 and was mimicked by BzATP. P2X7 activation by BzATP also induced PAD4 expression and activity in mouse kidney in vivo. Finally, supporting a critical role for PAD4 in P2X7-mediated exacerbation of renal injury, BzATP exacerbated ischemic AKI in PAD4 wild-type mice but not in PAD4-deficient mice. Taken together, our studies show that ATP induces renal tubular PAD4 via P2X7 receptor activation to exacerbate renal tubular inflammation and injury after IR. PMID- 29021224 TI - A Violaxanthin Deepoxidase Interacts with a Viral Suppressor of RNA Silencing to Inhibit Virus Amplification. AB - RNA silencing plays a critical role against viral infection. To counteract this antiviral silencing, viruses have evolved various RNA silencing suppressors. Meanwhile, plants have evolved counter-counter defense strategies against RNA silencing suppression (RSS). In this study, the violaxanthin deepoxidase protein of maize (Zea mays), ZmVDE, was shown to interact specifically with the helper component-proteinase (HC-Pro; a viral RNA silencing suppressor) of Sugarcane mosaic virus (SCMV) via its mature protein region by yeast two-hybrid assay, which was confirmed by coimmunoprecipitation in Nicotiana benthamiana cells. It was demonstrated that amino acids 101 to 460 in HC-Pro and the amino acid glutamine-292 in ZmVDE mature protein were essential for this interaction. The mRNA levels of ZmVDE were down-regulated 75% to 65% at an early stage of SCMV infection. Interestingly, ZmVDE, which normally localized in the chloroplasts and cytoplasm, could relocalize to HC-Pro-containing aggregate bodies in the presence of HC-Pro alone or SCMV infection. In addition, ZmVDE could attenuate the RSS activity of HC-Pro in a specific protein interaction-dependent manner. Subsequently, transient silencing of the ZmVDE gene facilitated SCMV RNA and coat protein accumulation. Taken together, our results suggest that ZmVDE interacts with SCMV HC-Pro and attenuates its RSS activity, contributing to decreased SCMV accumulation. This study demonstrates that a host factor can be involved in secondary defense responses against viral infection in monocot plants. PMID- 29021227 TI - Physiological regulation of the epithelial Na+ channel by casein kinase II. AB - epithelial Na+ channel, ENaC, is the final arbiter of sodium excretion in the kidneys. As such, discretionary control of ENaC by hormones is critical to the fine-tuning of electrolyte and water excretion and, consequently, blood pressure. Casein kinase 2 (CK2) phosphorylates ENaC. Phosphorylation by CK2 is necessary for normal ENaC activity. We tested the physiological importance of CK2 regulation of ENaC as the degree to which ENaC activity is dependent on CK2 phosphorylation in the living organism is unknown. This was addressed using patch clamp analysis of ENaC in completely split-open collecting ducts and whole animal physiological studies of sodium excretion in mice. We also used ENaC-harboring CK2 phosphorylation site mutations to elaborate the mechanism. We found that ENaC activity in ex vivo preparations of murine collecting duct had a significant decrease in activity in response to selective antagonism of CK2. In whole animal experiments selective antagonism of CK2 caused a natriuresis similar to benzamil, but not additive to benzamil, suggesting an ENaC-dependent mechanism. Regulation of ENaC by CK2 was abolished by mutation of the canonical CK2 phosphorylation sites in beta and gamma ENaC. Together, these results demonstrate that the appropriate regulation of ENaC by CK2 is necessary for the normal physiological role played by this key renal ion channel in the fine-tuning of sodium excretion. PMID- 29021223 TI - Peroxisome Function, Biogenesis, and Dynamics in Plants. PMID- 29021228 TI - Immune reconstitution and survival of 100 SCID patients post-hematopoietic cell transplant: a PIDTC natural history study. AB - The Primary Immune Deficiency Treatment Consortium (PIDTC) is enrolling children with severe combined immunodeficiency (SCID) to a prospective natural history study. We analyzed patients treated with allogeneic hematopoietic cell transplantation (HCT) from 2010 to 2014, including 68 patients with typical SCID and 32 with leaky SCID, Omenn syndrome, or reticular dysgenesis. Most (59%) patients were diagnosed by newborn screening or family history. The 2-year overall survival was 90%, but was 95% for those who were infection-free at HCT vs 81% for those with active infection (P = .009). Other factors, including the diagnosis of typical vs leaky SCID/Omenn syndrome, diagnosis via family history or newborn screening, use of preparative chemotherapy, or the type of donor used, did not impact survival. Although 1-year post-HCT median CD4 counts and freedom from IV immunoglobulin were improved after the use of preparative chemotherapy, other immunologic reconstitution parameters were not affected, and the potential for late sequelae in extremely young infants requires additional evaluation. After a T-cell-replete graft, landmark analysis at day +100 post-HCT revealed that CD3 < 300 cells/MUL, CD8 < 50 cells/MUL, CD45RA < 10%, or a restricted Vbeta T-cell receptor repertoire (<13 of 24 families) were associated with the need for a second HCT or death. In the modern era, active infection continues to pose the greatest threat to survival for SCID patients. Although newborn screening has been effective in diagnosing SCID patients early in life, there is an urgent need to identify validated approaches through prospective trials to ensure that patients proceed to HCT infection free. The trial was registered at www.clinicaltrials.gov as #NCT01186913. PMID- 29021230 TI - Gemtuzumab ozogamicin for acute myeloid leukemia. AB - On 1 September 2017, the US Food and Drug Administration (FDA) approved gemtuzumab ozogamicin (GO) for the treatment of adults with newly diagnosed CD33+ acute myeloid leukemia and for patients aged >=2 years with CD33+ acute myeloid leukemia who have experienced a relapse or who have not responded to initial treatment. This signals a new chapter in the long and unusual story of GO, which was the first antibody-drug conjugate approved for human use by the FDA. PMID- 29021231 TI - Deletion of BMP6 worsens the phenotype of HJV-deficient mice and attenuates hepcidin levels reached after LPS challenge. AB - Lack of either bone morphogenetic protein 6 (BMP6) or the BMP coreceptor hemojuvelin (HJV) in mice leads to a similar phenotype with hepcidin insufficiency, hepatic iron loading, and extrahepatic iron accumulation in males. This is consistent with the current views that HJV is a coreceptor for BMP6 in hepatocytes. To determine whether BMP6 and HJV may also signal to hepcidin independently of each other, we intercrossed Hjv-/- and Bmp6-/- mice and compared the phenotype of animals of the F2 progeny. Loss of Bmp6 further repressed Smad signaling and hepcidin expression in the liver of Hjv-/- mice of both sexes, and led to iron accumulation in the pancreas and the heart of females. These data suggest that, in Hjv-/- females, Bmp6 can provide a signal adequate to maintain hepcidin to a level sufficient to avoid extrahepatic iron loading. We also examined the impact of Bmp6 and/or Hjv deletion on the regulation of hepcidin by inflammation. Our data show that lack of 1 or both molecules does not prevent induction of hepcidin by lipopolysaccharide (LPS). However, BMP/Smad signaling in unchallenged animals is determinant for the level of hepcidin reached after stimulation, which is consistent with a synergy between interleukin 6/STAT3 and BMP/SMAD signaling in regulating hepcidin during inflammation. PMID- 29021233 TI - Divergent Activity of the Pseudogene PTENP1 in ER-Positive and Negative Breast Cancer. AB - Transcripts derived from the PTEN pseudogene (PTENP1) function as decoys to adsorb miRNAs targeting the PTEN tumor suppressor for degradation, and PTENP1 upregulation is known to inhibit growth in preclinical cancer models. Here, PTENP1 3'UTR transduction influences PTEN, AKT/mTOR signaling, and tumor progression in estrogen receptor (ER)-positive and -negative breast cancer cells. PTENP1 upregulation decreases PTEN gene expression in the ER-positive MCF7 and T47D human breast carcinoma cells and accelerates MCF7 tumor growth in vivo Of note, PTENP1 transduction significantly decreases ERalpha (ESR1) mRNA and protein levels in MCF7 xenografts with a concomitant increase in hsa-miR-26a, a miRNA known to target ESR1 In the ER-negative MDA-MB-231 and C3HBA breast cancer cells, upregulation of PTENP1 increases PTEN gene expression with no influence on hsa miR-26a, ESR1, or ERalpha expression. While PTENP1 transduction did not influence the growth rate of human MDA-MB-231 xenografts, PTENP1 upregulation profoundly reduces its metastatic propensity. Furthermore, PTENP1 significantly inhibits the growth rate of ER-negative C3HBA murine breast cancer xenografts. PTENP1 transduction had no influence on doxorubicin cytotoxicity in ER-positive MCF7 cells but an increase in doxorubicin sensitivity was observed in the ER-negative MDA-MB-231 cells. In summary, while PTENP1 upregulation decreased PTEN transcript levels and stimulated the growth of ER-positive breast cancers, increased PTEN transcript levels and inhibited tumor progression was observed in the ER-negative cells.Implications: This report highlights the profound biological activity of PTENP1 in breast cancer, which is dictated by the hormone receptor status. Mol Cancer Res; 16(1); 78-89. (c)2017 AACR. PMID- 29021229 TI - In vivo-generated thrombin and plasmin do not activate the complement system in baboons. AB - Sepsis concurrently activates both coagulation and complement systems. Although complement activation by bacteria is well documented, work in mice and in vitro suggests that coagulation proteases can directly cleave complement proteins. We aimed to determine whether generation of coagulation proteases in vivo can activate the complement cascade in 2 highly coagulopathic models. We compared temporal changes in activation biomarkers of coagulation (thrombin-antithrombin [TAT]), fibrinolysis (plasmin-antiplasmin [PAP]), and complement (C3b, C5a, C5b 9) in baboons infused with factor Xa (FXa) and phospholipids (FXa/phosphatidylcholine-phosphatidylserine [PCPS]) vs LD100 Escherichia coli We found that, albeit with different timing, both FXa/PCPS and E coli infusion led to robust thrombin and plasmin generation. Conversely, only E coli challenge activated the complement system, reaching a maximum at 2 hours postchallenge during the peaks of lipopolysaccharide and bacteremia but not of TAT and PAP. Despite inducing a strong burst of thrombin and plasmin, FXa/PCPS infusion did not produce measurable levels of complement activation in vivo. Similarly, ex vivo incubation of baboon serum with thrombin, plasmin, or FXa did not show noticeable complement cleavage unless supraphysiologic amounts of enzymes were used. Our results suggest that in vivo-generated thrombin and plasmin do not directly activate the complement in nonhuman primates. PMID- 29021232 TI - PKCepsilon Controls Mitotic Progression by Regulating Centrosome Migration and Mitotic Spindle Assembly. AB - To form a proper mitotic spindle, centrosomes must be duplicated and driven poleward in a timely and controlled fashion. Improper timing of centrosome separation and errors in mitotic spindle assembly may lead to chromosome instability, a hallmark of cancer. Protein kinase C epsilon (PKCepsilon) has recently emerged as a regulator of several cell-cycle processes associated with the resolution of mitotic catenation during the metaphase-anaphase transition and in regulating the abscission checkpoint. However, an engagement of PKCepsilon in earlier (pre)mitotic events has not been addressed. Here, we now establish that PKCepsilon controls prophase-to-metaphase progression by coordinating centrosome migration and mitotic spindle assembly in transformed cells. This control is exerted through cytoplasmic dynein function. Importantly, it is also demonstrated that the PKCepsilon dependency of mitotic spindle organization is correlated with the nonfunctionality of the TOPO2A-dependent G2 checkpoint, a characteristic of many transformed cells. Thus, PKCepsilon appears to become specifically engaged in a programme of controls that are required to support cell-cycle progression in transformed cells, advocating for PKCepsilon as a potential cancer therapeutic target.Implications: The close relationship between PKCepsilon dependency for mitotic spindle organization and the nonfunctionality of the TOPO2A-dependent G2 checkpoint, a hallmark of transformed cells, strongly suggests PKCepsilon as a therapeutic target in cancer. Mol Cancer Res; 16(1); 3-15. (c)2017 AACR. PMID- 29021234 TI - Speed and Safety in Drug Approval and Commercialization. PMID- 29021236 TI - How useful is PET/CT in the evaluation of fever/inflammation of unknown origin? Comment on the article by Schonau et al. PMID- 29021235 TI - Oral Analgesics Utilization for Children With Musculoskeletal Injury (OUCH Trial): An RCT. AB - BACKGROUND: Musculoskeletal injuries (MSK-Is) are a common and painful condition among children that remains poorly treated in the emergency department (ED). We aimed to test the efficacy of a combination of an anti-inflammatory drug with an opioid for pain management of MSK-I in children presenting to the ED. METHODS: In this randomized, double-blinded, placebo-controlled trial, we enrolled children between 6 and 17 years presenting to the ED with an MSK-I and a pain score >29 mm on the visual analog scale (VAS). Participants were randomly assigned to oral morphine (0.2 mg/kg) + ibuprofen (10 mg/kg) (morphine + ibuprofen) or morphine (0.2 mg/kg) + placebo of ibuprofen or ibuprofen (10 mg/kg) + placebo of morphine. Primary outcome was children with VAS pain score <30 mm at 60 minutes postmedication administration. RESULTS: A total of 501 participants were enrolled and 456 were included in primary analyses (morphine + ibuprofen = 177; morphine = 188; ibuprofen = 91). Only 29.9% (morphine + ibuprofen), 29.3% (morphine), and 33.0% (ibuprofen) of participants achieved the primary outcome (P = .81). Mean VAS pain reduction at 60 minutes were -18.7 (95% confidence interval [CI]: -21.9 to -16.6) (morphine + ibuprofen), -17.0 (95% CI: -20.0 to -13.9) (morphine), 18.6 (95% CI: -22.9 to -14.2) (ibuprofen) (P = .69). Children in the morphine + ibuprofen group (P < .001) and in the morphine group (P < .001) experienced more side effects than those in the ibuprofen group. No serious adverse event was reported. CONCLUSIONS: Combination of morphine with ibuprofen did not provide adequate pain relief for children with MSK-I in the ED. None of the study medication provided an optimal pain management because most of children did not reach a mild pain score (NCT02064894). PMID- 29021237 TI - Recommendations for collaborative paediatric research including biobanking in Europe: a Single Hub and Access point for paediatric Rheumatology in Europe (SHARE) initiative. AB - Innovative research in childhood rheumatic diseases mandates international collaborations. However, researchers struggle with significant regulatory heterogeneity; an enabling European Union (EU)-wide framework is missing. The aims of the study were to systematically review the evidence for best practice and to establish recommendations for collaborative research. The Paediatric Rheumatology European Single Hub and Access point for paediatric Rheumatology in Europe (SHARE) project enabled a scoping review and expert discussion, which then informed the systematic literature review. Published evidence was synthesised; recommendations were drafted. An iterative review process and consultations with Ethics Committees and European experts for ethical and legal aspects of paediatric research refined the recommendations. SHARE experts and patient representatives vetted the proposed recommendations at a consensus meeting using Nominal Group Technique. Agreement of 80% was mandatory for inclusion. The systematic literature review returned 1319 records. A total of 223 full-text publications plus 22 international normative documents were reviewed; 85 publications and 16 normative documents were included. A total of 21 recommendations were established including general principles (1-3), ethics (4 7), paediatric principles (8 and 9), consent to paediatric research (10-14), paediatric databank and biobank (15 and 16), sharing of data and samples (17-19), and commercialisation and third parties (20 and 21). The refined recommendations resulted in an agreement of >80% for all recommendations. The SHARE initiative established the first recommendations for Paediatric Rheumatology collaborative research across borders in Europe. These provide strong support for an urgently needed European framework and evidence-based guidance for its implementation. Such changes will promote research in children with rheumatic diseases. PMID- 29021238 TI - Asy2/Mer2: an evolutionarily conserved mediator of meiotic recombination, pairing, and global chromosome compaction. AB - Meiosis is the cellular program by which a diploid cell gives rise to haploid gametes for sexual reproduction. Meiotic progression depends on tight physical and functional coupling of recombination steps at the DNA level with specific organizational features of meiotic-prophase chromosomes. The present study reveals that every step of this coupling is mediated by a single molecule: Asy2/Mer2. We show that Mer2, identified so far only in budding and fission yeasts, is in fact evolutionarily conserved from fungi (Mer2/Rec15/Asy2/Bad42) to plants (PRD3/PAIR1) and mammals (IHO1). In yeasts, Mer2 mediates assembly of recombination-initiation complexes and double-strand breaks (DSBs). This role is conserved in the fungus Sordaria However, functional analysis of 13 mer2 mutants and successive localization of Mer2 to axis, synaptonemal complex (SC), and chromatin revealed, in addition, three further important functions. First, after DSB formation, Mer2 is required for pairing by mediating homolog spatial juxtaposition, with implications for crossover (CO) patterning/interference. Second, Mer2 participates in the transfer/maintenance and release of recombination complexes to/from the SC central region. Third, after completion of recombination, potentially dependent on SUMOylation, Mer2 mediates global chromosome compaction and post-recombination chiasma development. Thus, beyond its role as a recombinosome-axis/SC linker molecule, Mer2 has important functions in relation to basic chromosome structure. PMID- 29021239 TI - An RNA-binding protein, Qki5, regulates embryonic neural stem cells through pre mRNA processing in cell adhesion signaling. AB - Cell type-specific transcriptomes are enabled by the action of multiple regulators, which are frequently expressed within restricted tissue regions. In the present study, we identify one such regulator, Quaking 5 (Qki5), as an RNA binding protein (RNABP) that is expressed in early embryonic neural stem cells and subsequently down-regulated during neurogenesis. mRNA sequencing analysis in neural stem cell culture indicates that Qki proteins play supporting roles in the neural stem cell transcriptome and various forms of mRNA processing that may result from regionally restricted expression and subcellular localization. Also, our in utero electroporation gain-of-function study suggests that the nuclear type Qki isoform Qki5 supports the neural stem cell state. We next performed in vivo transcriptome-wide protein-RNA interaction mapping to search for direct targets of Qki5 and elucidate how Qki5 regulates neural stem cell function. Combined with our transcriptome analysis, this mapping analysis yielded a bona fide map of Qki5-RNA interaction at single-nucleotide resolution, the identification of 892 Qki5 direct target genes, and an accurate Qki5-dependent alternative splicing rule in the developing brain. Last, our target gene list provides the first compelling evidence that Qki5 is associated with specific biological events; namely, cell-cell adhesion. This prediction was confirmed by histological analysis of mice in which Qki proteins were genetically ablated, which revealed disruption of the apical surface of the lateral wall in the developing brain. These data collectively indicate that Qki5 regulates communication between neural stem cells by mediating numerous RNA processing events and suggest new links between splicing regulation and neural stem cell states. PMID- 29021240 TI - Integrative genome analysis of somatic p53 mutant osteosarcomas identifies Ets2 dependent regulation of small nucleolar RNAs by mutant p53 protein. AB - TP53 is the most frequently mutated gene in human cancer. Many mutant p53 proteins exert oncogenic gain-of-function (GOF) properties that contribute to metastasis, but the mechanisms mediating these functions remain poorly defined in vivo. To elucidate how mutant p53 GOF drives metastasis, we developed a traceable somatic osteosarcoma mouse model that is initiated with either a single p53 mutation (p53R172H) or p53 loss in osteoblasts. Our study confirmed that p53 mutant mice developed osteosarcomas with increased metastasis as compared with p53-null mice. Comprehensive transcriptome RNA sequencing (RNA-seq) analysis of 16 tumors identified a cluster of small nucleolar RNAs (snoRNAs) that are highly up-regulated in p53 mutant tumors. Regulatory element analysis of these deregulated snoRNA genes identified strong enrichment of a common Ets2 transcription factor-binding site. Homozygous deletion of Ets2 in p53 mutant mice resulted in strong down-regulation of snoRNAs and reversed the prometastatic phenotype of mutant p53 but had no effect on osteosarcoma development, which remained 100% penetrant. In summary, our studies identify Ets2 inhibition as a potential therapeutic vulnerability in p53 mutant osteosarcomas. PMID- 29021241 TI - Two distinct transcription termination modes dictated by promoters. AB - Transcription termination determines the ends of transcriptional units and thereby ensures the integrity of the transcriptome and faithful gene regulation. Studies in yeast and human cells have identified the exoribonuclease XRN2 as a key termination factor for protein-coding genes. Here we performed a genome-wide investigation of RNA polymerase II (Pol II) transcription termination in XRN2 deficient Caenorhabditis elegans and observed two distinct modes of termination. Although a subset of genes requires XRN2, termination of other genes appears both independent of, and refractory to, XRN2. XRN2 independence is not merely a consequence of failure to recruit XRN2, since XRN2 is present on-and promotes Pol II accumulation near the polyadenylation sites of-both gene classes. Unexpectedly, promoters instruct the choice of termination mode, but XRN2 independent termination additionally requires a compatible region downstream from the 3' end cleavage site. Hence, different termination mechanisms may work with different configurations of Pol II complexes dictated by promoters. PMID- 29021244 TI - Tackling concussion in professional rugby union: a case-control study of tackle based risk factors and recommendations for primary prevention. AB - BACKGROUND/AIM: Concussion, the most common injury in professional rugby union, occurs most commonly during the tackle. Thus, we investigated the association between tackle characteristics and concussion. METHODS: 182 video clips of tackles leading to clinically diagnosed concussion and 4619 tackles that did not were coded across three professional rugby union competitions. A variable selection process was undertaken to identify the most important variables for interpretation. A multivariate generalised linear model was used to model the association between retained variables and concussion risk. Magnitude-based inferences provided an interpretation of the real-world relevance of the outcomes. RESULTS: The four retained variables were: accelerating player, tackler speed, head contact type and tackle type. Overall, 70% of concussions occurred to the tackler and 30% to the ball carrier. There was a higher risk of concussion if the tackler accelerated into the tackle (OR: 2.49, 95% CI 1.70 to 3.64) or the tackler was moving at high speed (OR: 2.64, 95% CI 1.92 to 3.63). Head contact with the opposing player's head (OR: 39.9, 95% CI 22.2 to 71.1) resulted in a substantially greater risk of concussion compared with all other head contact locations. CONCLUSIONS: Interventions that reduce the speed and acceleration of the tackler and reduce exposure to head-to-head contact would likely reduce concussion risk in professional rugby union. PMID- 29021246 TI - Zombie reviews taking over the PROSPERO systematic review registry. It's time to fight back! PMID- 29021245 TI - Time out: ethical reflections on medical disqualification of athletes in the context of mandated pre-participation cardiac screening. PMID- 29021243 TI - Zucchini-dependent piRNA processing is triggered by recruitment to the cytoplasmic processing machinery. AB - The piRNA pathway represses transposable elements in the gonads and thereby plays a vital role in protecting the integrity of germline genomes of animals. Mature piRNAs are processed from longer transcripts, piRNA precursors (pre-piRNAs). In Drosophila, processing of pre-piRNAs is initiated by piRNA-guided Slicer cleavage or the endonuclease Zucchini (Zuc). As Zuc does not have any sequence or structure preferences in vitro, it is not known how piRNA precursors are selected and channeled into the Zuc-dependent processing pathway. We show that a heterologous RNA that lacks complementary piRNAs is processed into piRNAs upon recruitment of several piRNA pathway factors. This processing requires Zuc and the helicase Armitage (Armi). Aubergine (Aub), Argonaute 3 (Ago3), and components of the nuclear RDC complex, which are required for normal piRNA biogenesis in germ cells, are dispensable. Our approach allows discrimination of proteins involved in the transcription and export of piRNA precursors from components required for the cytoplasmic processing steps. piRNA processing correlates with localization of the substrate RNA to nuage, a distinct membraneless cytoplasmic compartment, which surrounds the nucleus of germ cells, suggesting that sequestration of RNA to this subcellular compartment is both necessary and sufficient for selecting piRNA biogenesis substrates. PMID- 29021247 TI - Why we should focus on the burden of injuries and illnesses, not just their incidence. PMID- 29021248 TI - Live attenuated influenza vaccine for children. AB - For many years, the UK seasonal influenza vaccination programme has been offered to people at higher risk from the complications of influenza infection, including those aged over 65 years and anyone aged over 6 months who is in a clinical risk group.1 In 2012, the Joint Committee on Vaccination and Immunisation (JCVI) recommended extending seasonal influenza vaccination to children aged 2-16 years who are not in a clinical risk group.2 In contrast to the vaccination programme for adults, which uses an injectable inactivated influenza vaccine, children are being offered a live attenuated influenza vaccine (LAIV) that is administered intranasally.2 Here, we consider the evidence for the use of the intranasal influenza vaccine for children who are not in a clinical risk group. PMID- 29021249 TI - Prescribing PPIs. AB - Proton pump inhibitors (PPIs) are widely prescribed and many people remain on them for years. In some, there may be good justification for long-term use; for example, in those with oesophageal stricture, Barrett's oesophagus or a history of a bleeding gastrointestinal ulcer, or to provide gastroprotection in those at high risk of gastrointestinal complications from taking NSAIDs. However, PPIs are often not used in line with clinical guidelines.1,2 In addition, there are concerns that many people take them for long periods to manage less serious conditions (e.g. indigestion) and may prefer taking them to addressing factors such as diet, obesity or alcohol that may be contributing to their symptoms. Although PPIs are well-tolerated, there is increasing evidence that they may be associated with a range of long-term adverse effects. Here, we review the safety of PPIs and consider whether long-term prescribing needs to be reassessed. PMID- 29021242 TI - Autogenous cross-regulation of Quaking mRNA processing and translation balances Quaking functions in splicing and translation. AB - Quaking protein isoforms arise from a single Quaking gene and bind the same RNA motif to regulate splicing, translation, decay, and localization of a large set of RNAs. However, the mechanisms by which Quaking expression is controlled to ensure that appropriate amounts of each isoform are available for such disparate gene expression processes are unknown. Here we explore how levels of two isoforms, nuclear Quaking-5 (Qk5) and cytoplasmic Qk6, are regulated in mouse myoblasts. We found that Qk5 and Qk6 proteins have distinct functions in splicing and translation, respectively, enforced through differential subcellular localization. We show that Qk5 and Qk6 regulate distinct target mRNAs in the cell and act in distinct ways on their own and each other's transcripts to create a network of autoregulatory and cross-regulatory feedback controls. Morpholino mediated inhibition of Qk translation confirms that Qk5 controls Qk RNA levels by promoting accumulation and alternative splicing of Qk RNA, whereas Qk6 promotes its own translation while repressing Qk5. This Qk isoform cross-regulatory network responds to additional cell type and developmental controls to generate a spectrum of Qk5/Qk6 ratios, where they likely contribute to the wide range of functions of Quaking in development and cancer. PMID- 29021250 TI - Electrostatic lipid-protein interactions sequester the curli amyloid fold on the lipopolysaccharide membrane surface. AB - Curli is a functional amyloid protein in the extracellular matrix of enteric Gram negative bacteria. Curli is assembled at the cell surface and consists of CsgA, the major subunit of curli, and a membrane-associated nucleator protein, CsgB. Oligomeric intermediates that accumulate during the lag phase of amyloidogenesis are generally toxic, but the underlying mechanism by which bacterial cells overcome this toxicity during curli assembly at the surface remains elusive. Here, we elucidated the mechanism of curli amyloidogenesis and provide molecular insights into the strategy by which bacteria can potentially bypass the detrimental consequences of toxic amyloid intermediates. Using a diverse range of biochemical and biophysical tools involving circular dichroism, fluorescence, Raman spectroscopy, and atomic force microscopy imaging, we characterized the molecular basis of the interaction of CsgB with a membrane-mimetic anionic surfactant as well as with lipopolysaccharide (LPS) constituting the outer leaflet of Gram-negative bacteria. Aggregation studies revealed that the electrostatic interaction of the positively charged C-terminal region of the protein with a negatively charged head group of surfactant/LPS promotes a protein protein interaction that results in facile amyloid formation without a detectable lag phase. We also show that CsgB, in the presence of surfactant/LPS, accelerates the fibrillation rate of CsgA by circumventing the lag phase during nucleation. Our findings suggest that the electrostatic interactions between lipid and protein molecules play a pivotal role in efficiently sequestering the amyloid fold of curli on the membrane surface without significant accumulation of toxic oligomeric intermediates. PMID- 29021251 TI - Direct evidence for conformational dynamics in major histocompatibility complex class I molecules. AB - Major histocompatibility complex class I molecules (MHC I) help protect jawed vertebrates by binding and presenting immunogenic peptides to cytotoxic T lymphocytes. Peptides are selected from a large diversity present in the endoplasmic reticulum. However, only a limited number of peptides complement the polymorphic MHC specificity determining pockets in a way that leads to high affinity peptide binding and efficient antigen presentation. MHC I molecules possess an intrinsic ability to discriminate between peptides, which varies in efficiency between allotypes, but the mechanism of selection is unknown. Elucidation of the selection mechanism is likely to benefit future immune modulatory therapies. Evidence suggests peptide selection involves transient adoption of alternative, presumably higher energy conformations than native peptide-MHC complexes. However, the instability of peptide-receptive MHC molecules has hindered characterization of such conformational plasticity. To investigate the dynamic nature of MHC, we refolded MHC proteins with peptides that can be hydrolyzed by UV light and thus released. We compared the resultant peptide-receptive MHC molecules with non-hydrolyzed peptide-loaded MHC complexes by monitoring the exchange of hydrogen for deuterium in solution. We found differences in hydrogen-deuterium exchange between peptide-loaded and peptide receptive molecules that were negated by the addition of peptide to peptide receptive MHC molecules. Peptide hydrolysis caused significant increases in hydrogen-deuterium exchange in sub-regions of the peptide-binding domain and smaller increases elsewhere, including in the alpha3 domain and the non covalently associated beta2-microglobulin molecule, demonstrating long-range dynamic communication. Comparing two MHC allotypes revealed allotype-specific differences in hydrogen-deuterium exchange, consistent with the notion that MHC I plasticity underpins peptide selection. PMID- 29021252 TI - A chemical and biological toolbox for Type Vd secretion: Characterization of the phospholipase A1 autotransporter FplA from Fusobacterium nucleatum. AB - Fusobacterium nucleatum is an oral pathogen that is linked to multiple human infections and colorectal cancer. Strikingly, F. nucleatum achieves virulence in the absence of large, multiprotein secretion systems (Types I, II, III, IV, and VI), which are widely used by Gram-negative bacteria for pathogenesis. By contrast, F. nucleatum strains contain genomic expansions of Type V secreted effectors (autotransporters) that are critical for host cell adherence, invasion, and biofilm formation. Here, we present the first characterization of an F. nucleatum Type Vd phospholipase class A1 autotransporter (strain ATCC 25586, gene FN1704) that we hereby rename Fusobacterium phospholipase autotransporter (FplA). Biochemical analysis of multiple Fusobacterium strains revealed that FplA is expressed as a full-length 85-kDa outer membrane-embedded protein or as a truncated phospholipase domain that remains associated with the outer membrane. Whereas the role of Type Vd secretion in bacteria remains unidentified, we show that FplA binds with high affinity to host phosphoinositide-signaling lipids, revealing a potential role for this enzyme in establishing an F. nucleatum intracellular niche. To further analyze the role of FplA, we developed an fplA gene knock-out strain, which will guide future in vivo studies to determine its potential role in F. nucleatum pathogenesis. In summary, using recombinant FplA constructs, we have identified a biochemical toolbox that includes lipid substrates for enzymatic assays, potent inhibitors, and chemical probes to detect, track, and characterize the role of Type Vd secreted phospholipases in Gram-negative bacteria. PMID- 29021253 TI - Nuclear export factor 3 regulates localization of small nucleolar RNAs. AB - Small nucleolar RNAs (snoRNAs) guide chemical modifications of ribosomal and small nuclear RNAs, functions that are carried out in the nucleus. Although most snoRNAs reside in the nucleolus, a growing body of evidence indicates that snoRNAs are also present in the cytoplasm and that snoRNAs move between the nucleus and cytoplasm by a mechanism that is regulated by lipotoxic and oxidative stress. Here, in a genome-wide shRNA-based screen, we identified nuclear export factor 3 (NXF3) as a transporter that alters the nucleocytoplasmic distribution of box C/D snoRNAs from the ribosomal protein L13a (Rpl13a) locus. Using RNA sequencing analysis, we show that NXF3 associates not only with Rpl13a snoRNAs, but also with a broad range of box C/D and box H/ACA snoRNAs. Under homeostatic conditions, gain- or loss-of-function of NXF3, but not related family member NXF1, decreases or increases cytosolic Rpl13a snoRNAs, respectively. Furthermore, treatment with the adenylyl cyclase activator forskolin diminishes cytosolic localization of the Rpl13a snoRNAs through a mechanism that is dependent on NXF3 but not NXF1. Our results provide evidence of a new role for NXF3 in regulating the distribution of snoRNAs between the nuclear and cytoplasmic compartments. PMID- 29021254 TI - Checkpoint kinase 1-induced phosphorylation of O-linked beta-N-acetylglucosamine transferase regulates the intermediate filament network during cytokinesis. AB - Checkpoint kinase 1 (Chk1) is a kinase instrumental for orchestrating DNA replication, DNA damage checkpoints, the spindle assembly checkpoint, and cytokinesis. Despite Chk1's pivotal role in multiple cellular processes, many of its substrates remain elusive. Here, we identified O-linked beta-N acetylglucosamine (O-GlcNAc)-transferase (OGT) as one of Chk1's substrates. We found that Chk1 interacts with and phosphorylates OGT at Ser-20, which not only stabilizes OGT, but also is required for cytokinesis. Phospho-specific antibodies of OGT-pSer-20 exhibited specific signals at the midbody of the cell, consistent with midbody localization of OGT as reported previously. Moreover, phospho deficient OGT (S20A) cells attenuated cellular O-GlcNAcylation levels and also reduced phosphorylation of Ser-71 in the cytoskeletal protein vimentin, a modification critical for severing vimentin filament during cytokinesis. Consequently, elongated vimentin bridges were observed in cells depleted of OGT via an siOGT-based approach. Lastly, expression of plasmids resistant to siOGT efficiently rescued the vimentin bridge phenotype, but the OGT-S20A rescue plasmids did not. Our results suggest a Chk1-OGT-vimentin pathway that regulates the intermediate filament network during cytokinesis. PMID- 29021255 TI - The molecular mechanism of N-acetylglucosamine side-chain attachment to the Lancefield group A carbohydrate in Streptococcus pyogenes. AB - In many Lactobacillales species (i.e. lactic acid bacteria), peptidoglycan is decorated by polyrhamnose polysaccharides that are critical for cell envelope integrity and cell shape and also represent key antigenic determinants. Despite the biological importance of these polysaccharides, their biosynthetic pathways have received limited attention. The important human pathogen, Streptococcus pyogenes, synthesizes a key antigenic surface polymer, the Lancefield group A carbohydrate (GAC). GAC is covalently attached to peptidoglycan and consists of a polyrhamnose polymer, with N-acetylglucosamine (GlcNAc) side chains, which is an essential virulence determinant. The molecular details of the mechanism of polyrhamnose modification with GlcNAc are currently unknown. In this report, using molecular genetics, analytical chemistry, and mass spectrometry analysis, we demonstrated that GAC biosynthesis requires two distinct undecaprenol-linked GlcNAc-lipid intermediates: GlcNAc-pyrophosphoryl-undecaprenol (GlcNAc-P-P-Und) produced by the GlcNAc-phosphate transferase GacO and GlcNAc-phosphate undecaprenol (GlcNAc-P-Und) produced by the glycosyltransferase GacI. Further investigations revealed that the GAC polyrhamnose backbone is assembled on GlcNAc P-P-Und. Our results also suggested that a GT-C glycosyltransferase, GacL, transfers GlcNAc from GlcNAc-P-Und to polyrhamnose. Moreover, GacJ, a small membrane-associated protein, formed a complex with GacI and significantly stimulated its catalytic activity. Of note, we observed that GacI homologs perform a similar function in Streptococcus agalactiae and Enterococcus faecalis In conclusion, the elucidation of GAC biosynthesis in S. pyogenes reported here enhances our understanding of how other Gram-positive bacteria produce essential components of their cell wall. PMID- 29021256 TI - Disruption of amyloid precursor protein ubiquitination selectively increases amyloid beta (Abeta) 40 levels via presenilin 2-mediated cleavage. AB - Amyloid plaques, a neuropathological hallmark of Alzheimer's disease, are largely composed of amyloid beta (Abeta) peptide, derived from cleavage of amyloid precursor protein (APP) by beta- and gamma-secretases. The endosome is increasingly recognized as an important crossroad for APP and these secretases, with major implications for APP processing and amyloidogenesis. Among various post-translational modifications affecting APP accumulation, ubiquitination of cytodomain lysines may represent a key signal controlling APP endosomal sorting. Here, we show that substitution of APP C-terminal lysines with arginine disrupts APP ubiquitination and that an increase in the number of substituted lysines tends to increase APP metabolism. An APP mutant lacking all C-terminal lysines underwent the most pronounced increase in processing, leading to accumulation of both secreted and intracellular Abeta40. Artificial APP ubiquitination with rapalog-mediated proximity inducers reduced Abeta40 generation. A lack of APP C terminal lysines caused APP redistribution from endosomal intraluminal vesicles (ILVs) to the endosomal limiting membrane, with a subsequent decrease in APP C terminal fragment (CTF) content in secreted exosomes, but had minimal effects on APP lysosomal degradation. Both the increases in secreted and intracellular Abeta40 were abolished by depletion of presenilin 2 (PSEN2), recently shown to be enriched on the endosomal limiting membrane compared with PSEN1. Our findings demonstrate that ubiquitin can act as a signal at five cytodomain-located lysines for endosomal sorting of APP. They further suggest that disruption of APP endosomal sorting reduces its sequestration in ILVs and results in PSEN2-mediated processing of a larger pool of APP-CTF on the endosomal membrane. PMID- 29021258 TI - Age, Sex, and Blood Pressure-Related Influences on Reference Values of Left Atrial Deformation and Mechanics From a Large-Scale Asian Population. AB - BACKGROUND: Left atrial (LA) function is tightly linked to several cardiovascular diseases and confers key prognostic information. Speckle tracking-based deformation as a feasible and sensitive LA mechanical assessment has proven its clinical significance beyond volume measures; however, the reference values remain largely unknown. METHODS AND RESULTS: We studied 4042 participants undergoing annual cardiovascular survey. Among them, 2812 healthy participants (65% men; mean age, 47.4+/-9.9 years) were eligible for speckle tracking analysis. Peak atrial longitudinal systolic strain and strain rate (SR) at systolic (SRs), early diastolic (SRe), and late diastolic atrial contraction phases (SRa) were analyzed by dedicated software (EchoPAC, GE) and compared in terms of age, sex, and blood pressure. Overall, women demonstrated higher peak atrial longitudinal systolic strain (39.34+/-7.99% versus 37.95+/-7.96%; P<0.001) and showed age-dependent more pronounced peak atrial longitudinal systolic strain functional decay than those of men (P value for interaction, <0.05), with men showing higher SRs and SRa, although lower SRe (all P<0.001). Both increasing age and higher blood pressure were independently associated with deteriorated peak atrial longitudinal systolic strain, SRs, and SRe, although augmented LA SRa, even after accounting for baseline clinical covariates in multivariable models that incorporated LA volume, NT-proBNP (N-terminal pro-B-type natriuretic peptide), or left ventricular E/e' (all P<0.001). CONCLUSIONS: Our findings suggest LA mechanical functional decays in association with increasing age and higher blood pressure, which seem to be compensated for by augmentation of atrial pump function. We have also provided age- and sex-stratified reference values for strain and SR based on a large-scale Asian population. PMID- 29021257 TI - Presence, Characteristics, and Prognostic Associations of Carotid Plaque Among People Living With HIV. AB - BACKGROUND: Data from broad populations have established associations between incidental carotid plaque and vascular events. Among people living with HIV (PLWHIV), the risk of vascular events is increased; however, whether incidental carotid plaque is increased and there is an association between incidental carotid plaque, plaque characteristics, and vascular events among PLWHIV is unclear. METHODS AND RESULTS: Data from the multi-institutional Research Patient Data Registry were used. Presence and characteristics (high-risk plaque, including spotty calcification and low attenuation) of carotid plaque by computerized tomography among PLWHIV without known vascular disease were described. Data were compared with uninfected controls similar in age, sex, and cardiovascular risk factors, including diabetes mellitus, hyperlipidemia, and cigarette smoking to cases. Primary outcome was an atherosclerotic cardiovascular disease event, and secondary outcome was ischemic stroke. Cohort consisted of 209 PLWHIV (45+/-10 years, 72% male) and 168 controls. Using computerized tomography, PLWHIV without vascular disease had higher rates of any carotid plaque (34% versus 25%; P=0.04), noncalcified (18% versus 5%; P<0.001) and high-risk plaque (25% versus 16%; P=0.03). Over a follow-up of 3 years, 19 atherosclerotic cardiovascular disease events (9 strokes) occurred. Carotid plaque was independently associated with a 3-fold increase in atherosclerotic cardiovascular disease events among PLWHIV (hazard ratio, 2.91; confidence interval, 1.10-7.7, P=0.03) and a 4-fold increased risk of stroke (hazard ratio, 4.43; confidence interval, 1.17-16.70; P=0.02); high-risk plaque was associated with a 3-fold increased risk of atherosclerotic cardiovascular disease events and a 4-fold increased risk of stroke. CONCLUSIONS: There is an increase in incidental carotid plaque, noncalcified plaque, and high-risk plaque among PLWHIV, and the presence and characteristics of carotid plaque are associated with subsequent vascular events. PMID- 29021259 TI - Preload Stress Echocardiography Predicts Outcomes in Patients With Preserved Ejection Fraction and Low-Gradient Aortic Stenosis. AB - BACKGROUND: The projected aortic valve area (AVAproj) at a normal transvalvular flow rate using dobutamine is helpful to determine the actual severity of aortic stenosis (AS) and to predict risk of adverse events in low-gradient AS cases with unclear surgical indication. Our study aimed to identify the independent and incremental value of preload stress echocardiography-derived AVAproj to predict outcomes in patients with preserved ejection fraction and low-gradient AS. METHODS AND RESULTS: We prospectively performed echocardiographic studies in 79 patients with low-gradient AS (age, 77+/-7 years; 30% men) with preload stress echocardiography using leg positive pressure. AVAproj was calculated using AVA and transvalvular flow rate at baseline and during leg positive pressure. The primary end point was the decision for aortic valve surgery or cardiac death. During a median period of 19 months, 23 patients had the decision for aortic valve surgery, and none died during follow-up. In a stepwise multivariable analysis, indexed AVAproj (AVAiproj; hazard ratio, 2.00 per 0.1 cm2/m2 decrease; 95% confidence interval, 1.36-2.96; P<0.001) was associated with the primary end point. Using a receiver operating characteristic curve analysis, the best cutoff value of AVAiproj for predicting cardiac events was <0.72 cm2/m2. By incorporating AVAiproj into AVAi at baseline, continuous net reclassification index for cardiac events was 0.48 (P=0.04). CONCLUSIONS: In patients with low gradient AS, indexed AVAproj derived from preload stress echocardiography can be useful to predict risk of adverse events. The present article should be considered as a proof of concept study, and we think that larger multicenter studies are warranted. PMID- 29021260 TI - Risk Stratification of Severe Aortic Stenosis With Preserved Left Ventricular Ejection Fraction Using Peak Aortic Jet Velocity: An Outcome Study. AB - BACKGROUND: Current guidelines consider aortic valve replacement reasonable in asymptomatic patients with very severe aortic stenosis (AS); however, the definition of very severe AS based on peak aortic jet velocity (Vmax) remains unclear with a 5-m/s cutoff in US guidelines and 5.5 m/s in European guidelines. Because ~20% of patients with severe AS and preserved left ventricular ejection fraction have Vmax in this range, we aimed to assess the relationship between Vmax and mortality and determine the best threshold to define very severe AS. METHODS AND RESULTS: A total of 1140 patients with severe AS (aortic valve area <=1 cm2, Vmax >=4 m/s) and preserved left ventricular ejection fraction were included. The population was divided into 4 groups according to Vmax (4-4.49, 4.5 4.99, 5-5.49, and >=5.5 m/s). After adjustment for covariates (including surgery), there was no difference in all-cause mortality between Vmax 4 to 4.49 m/s and Vmax 4.5 to 4.99 m/s (P=0.64). Both Vmax 5 to 5.49 m/s and Vmax >=5.5 m/s exhibited significant excess mortality compared with Vmax 4 to 4.49 m/s (adjusted hazard ratio=1.34 [1.18-1.52]; P<0.001, and 1.28 [1.16-1.41]; P<0.001, respectively). Mortality risk was similar for Vmax 5 to 5.49 m/s and Vmax >=5.5 m/s (P=0.93). Compared with Vmax <5 m/s, patients with Vmax >=5 m/s had greater mortality risk (adjusted hazard ratio=1.86 [1.55-2.54]; P<0.001), even in the subgroup of asymptomatic even in the subgroup of asymptomatic patients (adjusted hazard ratio=2.08 [1.25-3.46]; P=0.005). CONCLUSIONS: Our results demonstrate the strong relationship between Vmax and mortality in patients with severe AS and preserved left ventricular ejection fraction irrespective of symptoms. Vmax >=5 m/s at the time of AS diagnosis identifies patients with very severe AS at high risk of death. PMID- 29021261 TI - Letter by Chung and Kim Regarding Article, "Head-to-Head Comparison of Inflammation and Neovascularization in Human Carotid Plaques: Implications for the Imaging of Vulnerable Plaques". PMID- 29021262 TI - Response by Demeure et al to Letter Regarding Article, "Head-to-Head Comparison of Inflammation and Neovascularization in Human Carotid Plaques: Implications for the Imaging of Vulnerable Plaques". PMID- 29021263 TI - Left Atrial Strain: A Must or a Plus for Routine Clinical Practice? PMID- 29021264 TI - Preload Stress Echocardiography: A New Tool to Confirm Severity of Low-Gradient Aortic Stenosis. PMID- 29021265 TI - Assessment of the Patient With Severe Aortic Stenosis: Getting Closer to the Truth. PMID- 29021266 TI - Imaging to End Points: Cardiovascular Disease Risk Assessment in HIV. PMID- 29021269 TI - "Road Map" to Improving Enrollment in Cardiac Rehabilitation: Identifying Barriers and Evaluating Alternatives. PMID- 29021267 TI - Association of Neighborhood Socioeconomic Context With Participation in Cardiac Rehabilitation. AB - BACKGROUND: Cardiac rehabilitation (CR) is underutilized in the United States, with fewer than 20% of eligible patients participating in CR programs. Individual socioeconomic status is associated with CR utilization, but data regarding neighborhood characteristics and CR are sparse. We investigated the association of neighborhood socioeconomic context with CR participation in the SCCS (Southern Community Cohort Study). METHODS AND RESULTS: The SCCS is a prospective cohort study of 84 569 adults in the southeastern United States from 2002 to 2009, 52 117 of whom have Medicare or Medicaid claims. Using these data, we identified participants with hospitalizations for myocardial infarction, percutaneous coronary intervention, or coronary artery bypass surgery and ascertained their CR utilization. Neighborhood socioeconomic context was assessed using a neighborhood deprivation index derived from 11 census-tract level variables. We analyzed the association of CR utilization with neighborhood deprivation after adjusting for individual socioeconomic status. A total of 4096 SCCS participants (55% female, 57% black) with claims data were eligible for CR. CR utilization was low, with 340 subjects (8%) participating in CR programs. Study participants residing in the most deprived communities (highest quintile of neighborhood deprivation) were less than half as likely to initiate CR (odds ratio 0.42, 95% confidence interval, 0.27-0.66, P<0.001) as those in the lowest quintile. CR participation was inversely associated with all-cause mortality (hazard ratio 0.77, 95% confidence interval, 0.60-0.996, P<0.05). CONCLUSIONS: Lower neighborhood socioeconomic context was associated with decreased CR participation independent of individual socioeconomic status. These data invite research on interventions to increase CR access in deprived communities. PMID- 29021268 TI - Tai Chi Is a Promising Exercise Option for Patients With Coronary Heart Disease Declining Cardiac Rehabilitation. AB - BACKGROUND: More than 60% of patients decline participation in cardiac rehabilitation after a myocardial infarction. Options to improve physical activity (PA) and other risk factors in these high-risk individuals are limited. We conducted a phase 2 randomized controlled trial to determine feasibility, safety, acceptability, and estimates of effect of tai chi on PA, fitness, weight, and quality of life. METHODS AND RESULTS: Patients with coronary heart disease declining cardiac rehabilitation enrollment were randomized to a "LITE" (2 sessions/week for 12 weeks) or to a "PLUS" (3 sessions/week for 12 weeks, then maintenance classes for 12 additional weeks) condition. PA (accelerometry), weight, and quality of life (Health Survey Short Form) were measured at baseline and 3, 6, and 9 months after baseline; aerobic fitness (stress test) was measured at 3 months. Twenty-nine participants (13 PLUS and 16 LITE) were enrolled. Retention at 9 months was 90% (LITE) and 88% (PLUS). No serious tai chi-related adverse events occurred. Significant mean between group differences in favor of the PLUS group were observed at 3 and 6 months for moderate-to-vigorous PA (100.33 min/week [95% confidence interval, 15.70-184.95 min/week] and 111.62 min/week; [95% confidence interval, 26.17-197.07 min/week], respectively, with a trend toward significance at 9 months), percentage change in weight, and quality of life. No changes in aerobic fitness were observed within and between groups. CONCLUSIONS: In this community sample of patients with coronary heart disease declining enrollment in cardiac rehabilitation, a 6-month tai chi program was safe and improved PA, weight, and quality of life compared with a 3-month intervention. Tai chi could be an effective option to improve PA in this high risk population. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT02165254. PMID- 29021270 TI - Benefits of Cardiac Rehabilitation on Cardiovascular Outcomes in Patients With Diabetes Mellitus After Percutaneous Coronary Intervention. AB - BACKGROUND: Participation in cardiac rehabilitation (CR) is an essential component of care for patients with coronary artery disease. However, little is known about its benefit on cardiovascular outcomes in patients with diabetes mellitus (DM) who have undergone percutaneous coronary intervention. The aim of our study was to evaluate the impact of CR in this high-risk group of patients. METHODS AND RESULTS: We performed a retrospective analysis of all patients with DM who underwent percutaneous coronary intervention in Olmsted County (Minnesota) between 1994 and 2010, assessing the impact of CR participation on clinical outcomes. CR participation was significantly lower in patients with DM (38%, 263/700) compared with those who did not have DM (45%, 1071/2379; P=0.004). Using propensity score adjustment, we found that in patients with DM, CR participation was associated with significantly reduced all-cause mortality (hazard ratio, 0.56; 95% confidence interval, 0.39-0.80; P=0.002) and composite end point of mortality, myocardial infarction, or revascularization (hazard ratio, 0.77; 95% confidence interval, 0.60-0.98; P=0.037), during a median follow-up of 8.1 years. In patients without DM, CR participation was associated with a significant reduction in all-cause mortality (hazard ratio, 0.67; 95% confidence interval, 0.55-0.82; P<0.001) and cardiac mortality (hazard ratio, 0.67; 95% confidence interval, 0.47-0.95; P=0.024). CONCLUSIONS: CR participation after percutaneous coronary intervention is associated with lower all-cause mortality rates in patients with DM, to a similar degree as for those without DM. However, CR participation was lower in patients with DM, suggesting the need to identify and correct the barriers to CR participation for this higher-risk group of patients. PMID- 29021271 TI - Impact of Hemodialysis on Procedural Outcomes of Percutaneous Coronary Intervention for Chronic Total Occlusion: Insights From the Japanese Multicenter Registry. AB - BACKGROUND: Among patients treated with percutaneous coronary intervention for chronic total occlusion (CTO-PCI), patients on long-term hemodialysis are at significantly high risk for cardiovascular mortality and morbidity. However, clinical or angiographic predictors that might aid in better patient selection remain unclear. We aimed to assess the acute impact of hemodialysis in patients who underwent CTO-PCI. METHODS AND RESULTS: The Retrograde Summit registry is a multicenter, prospective registry of patients undergoing CTO-PCI at 65 Japanese centers. Patient characteristics and procedural outcomes of 4749 patients were analyzed, according to the presence (n=313) or absence (n=4436) of baseline hemodialysis. A prediction model for technical failure among hemodialysis patients was also developed. The technical success rate of CTO-PCI was significantly lower in hemodialysis than in nonhemodialysis patients (78.0% versus 89.1%, P<0.001). The rates of in-hospital major adverse cardiac and cerebrovascular events were similar between the 2 groups (1.6% versus 0.9%, P=0.24). Irrespective of clinical/angiographic characteristics or previously developed scoring systems, hemodialysis independently predicted technical failure for CTO-PCI. Among hemodialysis patients, predictors of technical failure were blunt stump (odds ratio 2.45, 95% confidence interval, 1.15-5.21, P=0.021), severe lesion calcification (odds ratio 2.50, 95% confidence interval, 1.19-5.24, P=0.015), and absence of diabetes mellitus (odds ratio 3.15, 95% confidence interval, 1.49-6.64, P=0.003). In hemodialysis patients without these predictors, the technical success rate was 96.2%. CONCLUSIONS: Hemodialysis is significantly associated with technical failure. Contemporary CTO-PCI seems feasible and safe in selected hemodialysis patients. PMID- 29021273 TI - Improvement in Care and Outcomes for Emergency Medical Service-Transported Patients With ST-Elevation Myocardial Infarction (STEMI) With and Without Prehospital Cardiac Arrest: A Mission: Lifeline STEMI Accelerator Study. AB - BACKGROUND: Patients with ST-elevation myocardial infarction (STEMI) with out-of hospital cardiac arrest (OHCA) may benefit from direct transport to a percutaneous cardiac intervention (PCI) hospital but have previously been less likely to bypass local non-PCI hospitals to go to a PCI center. METHODS AND RESULTS: We reported time trends in emergency medical service transport and care of patients with STEMI with and without OHCA included from 171 PCI-capable hospitals in 16 US regions with participation in the Mission: Lifeline STEMI Accelerator program between July 1, 2012, and March 31, 2014. Time trends by quarter were assessed using logistic regression with generalized estimating equations to account for hospital clustering. Of 13 189 emergency medical service transported patients, 88.7% (N=11 703; 10.5% OHCA) were taken directly to PCI hospitals. Among 1486 transfer-in patients, 21.7% had OHCA. Direct transport to a PCI center for OHCA increased from 74.7% (July 1, 2012) to 83.6% (March 31, 2014) (odds ratio per quarter, 1.07; 95% confidence interval, 1.02-1.14), versus 89.0% to 91.0% for patients without OHCA (odds ratio, 1.03; 95% confidence interval, 0.99-1.07; interaction P=0.23). The proportion with prehospital ECGs increased for patients taken directly to PCI centers (53.9%-61.9% for those with OHCA versus 73.9%-81.9% for those without OHCA; interaction P=0.12). Of 997 patients with OHCA taken directly to PCI hospitals and treated with primary PCI, first medical contact-to-device times within the guideline-recommended goal of <=90 minutes were met for 34.5% on July 1, 2012, versus 41.8% on March 31, 2014 (51.6% and 56.1%, respectively, for 9352 counterparts without OHCA; interaction P=0.72). CONCLUSIONS: Direct transport to PCI hospitals increased for patients with STEMI with and without OHCA during the 2012 to 2014 Mission: Lifeline STEMI Accelerator program. Proportions with prehospital ECGs and timely reperfusion increased for patients taken directly to PCI hospitals. PMID- 29021272 TI - Combined Salt and Caloric Restrictions: Potential Adverse Outcomes. AB - BACKGROUND: We hypothesized that caloric restriction (CR) and salt restriction (ResS) would have similar effects on reducing cardiovascular risk markers and that combining CR and ResS would be synergistic in modulating these markers. METHODS AND RESULTS: To test our hypothesis, rats were randomized into 2 groups: ad libitum liberal salt diet (ad libitum/high-sodium, 1.6% sodium) or ResS diet (ad libitum/ResS, 0.03% sodium). CR was initiated in half of the rats in each group by reducing caloric intake to 60% while maintaining sodium intake constant (CR/high-sodium, 2.7% sodium or CR/ResS, 0.05% sodium) for 4 weeks. CR in rats on a high-sodium diet improved metabolic parameters, renal transforming growth factor-beta and collagen-1alpha1 and increased plasma adiponectin and renal visfatin and NAD+ protein levels. Although CR produced some beneficial cardiovascular effects (increased sodium excretion and reduced blood pressure), it also was associated with potentially adverse cardiovascular effects. Adrenal zona glomerulosa cell responsiveness and aldosterone levels and activation were inappropriately increased for the volume state of the rodent. Like CR on HS, CR on a ResS diet also produced relative increased zona glomerulosa responsiveness and an increased blood pressure with no improvement in metabolic parameters. CONCLUSIONS: These results suggest that combining CR and ResS may decrease the beneficial effects of each alone. Furthermore, CR, regardless of dietary salt intake, inappropriately activates aldosterone production. Thus, caution should be used in combining ResS and CR because the combination may lead to increased cardiovascular risk. PMID- 29021274 TI - Prevalence and Outcomes of Left-Sided Valvular Heart Disease Associated With Chronic Kidney Disease. AB - BACKGROUND: Chronic kidney disease (CKD) is an adverse prognostic marker for valve intervention patients; however, the prevalence and related outcomes of valvular heart disease in CKD patients is unknown. METHODS AND RESULTS: Included patients underwent echocardiography (1999-2013), had serum creatinine values within 6 months before index echocardiogram, and had no history of valve surgery. CKD was defined as diagnosis based on the International Classification of Diseases, Ninth Revision or an estimated glomerular filtration rate <60 mL/min per 1.73 m2. Qualitative assessment determined left heart stenotic and regurgitant valve lesions. Cox models assessed CKD and aortic stenosis (AS) interaction for subsequent mortality; analyses were repeated for mitral regurgitation (MR). Among 78 059 patients, 23 727 (30%) had CKD; of these, 1326 were on hemodialysis. CKD patients were older; female; had a higher prevalence of hypertension, hyperlipidemia, diabetes, history of coronary artery bypass grafting/percutaneous coronary intervention, atrial fibrillation, and heart failure >=mild AS; and >=mild MR (all P<0.001). Five-year survival estimates of mild, moderate, and severe AS for CKD patients were 40%, 34%, and 42%, respectively, and 69%, 54%, and 67% for non-CKD patients. Five-year survival estimates of mild, moderate, and severe MR for CKD patients were 51%, 38%, and 37%, respectively, and 75%, 66%, and 65% for non-CKD patients. Significant interaction occurred among CKD, AS/MR severity, and mortality in adjusted analyses; the CKD hazard ratio increased from 1.8 (non-AS patients) to 2.0 (severe AS) and from 1.7 (non-MR patients) to 2.6 (severe MR). CONCLUSIONS: Prevalence of at least mild AS and MR is substantially higher and is associated with significantly lower survival among patients with versus without CKD. There is significant interaction among CKD, AS/MR severity, and mortality, with increasingly worse outcomes for CKD patients with increasing AS/MR severity. PMID- 29021275 TI - Impact of Coronary Artery Disease on 30-Day and 1-Year Mortality in Patients Undergoing Transcatheter Aortic Valve Replacement: A Meta-Analysis. AB - BACKGROUND: The impact of coronary artery disease (CAD) on outcomes after transcatheter aortic valve replacement (TAVR) is understudied. Literature on the prognostic role of CAD in the survival of patients undergoing TAVR shows conflicting results. This meta-analysis aims to investigate how CAD impacts patient survival following TAVR. METHODS AND RESULTS: We completed a comprehensive literature search of Embase, MEDLINE, and the Cochrane Library, and included studies reporting outcome of TAVR based on CAD status of patients for the analysis. From the initial 1631 citations, 15 studies reporting on 8013 patients were analyzed using a random-effects model. Of the 8013 patients undergoing TAVR, with a median age of 81.3 years (79-85.1 years), 46.6% (40-55.7) were men and 3899 (48.7%) had CAD (ranging from 30.8% to 78.2% in various studies). Overall, 3121 SAPIEN/SAPIEN XT/SAPIEN 3 (39.6%) and 4763 CoreValve (60.4%) prostheses were implanted, with transfemoral access being the most frequently used approach for the implantation (76.1%). Our analysis showed no significant difference between patients with and without CAD for all-cause mortality at 30 days post TAVR, with a cumulative odds ratio of 1.07 (95% confidence interval, 0.82-1.40; P=0.62). However, there was a significant increase in all-cause mortality at 1 year in the CAD group compared with patients without CAD, with a cumulative odds ratio of 1.21 (95% confidence interval, 1.07 1.36; P=0.002). CONCLUSIONS: Even though coexisting CAD does not impact 30-day mortality, it does have an impact on 1-year mortality in patients undergoing TAVR. Our results highlight a need to revisit the revascularization strategies for concomitant CAD in patients with TAVR. PMID- 29021276 TI - Economic Impact of Subsequent Depression in Patients With a New Diagnosis of Stable Angina: A Population-Based Study. AB - BACKGROUND: Depression is strongly linked to increased morbidity and mortality in patients with chronic stable angina; however, its associated healthcare costs have been less well studied. Our objective was to identify the characteristics of chronic stable patients found to have depression and to determine the impact of an occurrence of depression on healthcare costs within 1 year of a diagnosis of stable angina. METHODS AND RESULTS: In this population-based study conducted in Ontario, Canada, we identified patients diagnosed with stable angina based on angiogram between October 1, 2008, and September 30, 2013. Depression was ascertained by physician billing codes and hospital admission diagnostic codes contained within administrative databases. The primary outcome was cumulative mean 1-year healthcare costs following index angiogram. Generalized linear models were developed with a logarithmic link and gamma distribution to determine predictors of cost. Our cohort included 22 917 patients with chronic stable angina. Patients with depression had significantly higher mean 1-year healthcare costs ($32 072+/-$41 963) than patients without depression ($23 021+/-$25 741). After adjustment for baseline comorbidities, depression was found to be a significant independent predictor of cost, with a cost ratio of 1.33 (95% confidence interval, 1.29-1.37). Higher costs in depressed patients were seen in all healthcare sectors, including acute and ambulatory care. CONCLUSIONS: Depression is an important driver of healthcare costs in patients following a diagnosis of chronic stable angina. Further research is needed to understand whether improvements in the approach to diagnosis and treatment of depression will translate to reduced expenditures in this population. PMID- 29021277 TI - Cardiometabolic Risk Variables in Preadolescent Children: A Factor Analysis. AB - BACKGROUND: Atherosclerosis begins during preadolescence and is occurring at an accelerated rate. This acceleration has been linked to poor lifestyle behaviors and subsequent cardiometabolic complications. Although the clustering of cardiometabolic risk factors has been recognized for over 2 decades, previous studies in children have predominantly examined the relationships between atherosclerosis and individual cardiometabolic risk factors or have grouped together preadolescent and adolescent children. Further, no known studies have included glycated hemoglobin or central hemodynamic measures such as central systolic blood pressure and augmentation index. METHODS AND RESULTS: Principal component analysis was performed on a cross-sectional sample of 392 children (aged 9.5 years, 50% girls) from 3 representative sample sites across New Zealand. Four factors explained 60% of the variance in the measured variables. In order of variance explained, the factors were: blood pressure (central systolic blood pressure and peripheral systolic and diastolic blood pressure), adiposity (waist circumference, body mass index, and glycated hemoglobin), lipids (total cholesterol, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol), and vascular (augmentation index, heart rate, and fasting blood glucose). CONCLUSIONS: In accordance with previous findings in adults and adolescents, one common factor is unlikely to define cardiometabolic health in preadolescent children. Each of the factors, except vascular, which was predominantly explained by augmentation index, are in agreement with previous findings in adolescents. An additional novel finding was that glycated hemoglobin and fasting blood glucose loaded onto different factors, supporting previous work suggesting that fasting blood glucose indicates short-term glycemic control, whereas glycated hemoglobin reflects chronic glycemic control. CLINICAL TRIAL REGISTRATION: URL: www.anzctr.org.au/. ID: ACTRN12614000433606. PMID- 29021279 TI - Long-Term Fragility of Y Chromosomes Is Dominated by Short-Term Resolution of Sexual Antagonism. AB - The evolution of heteromorphic sex chromosomes has fascinated biologists, inspiring theoretical models, experimental studies, and studies of genome structure. This work has produced a clear model, in which heteromorphic sex chromosomes result from repeated fixations of inversions (or other recombination suppression mechanisms) that tether sexually antagonistic alleles to sex determining regions, followed by the degeneration of these regions induced by the lack of sex chromosome recombination in the heterogametic sex. However, current models do not predict if inversions are expected to preferentially accumulate on one sex-chromosome or another, and do not address if inversions can accumulate even when they cause difficulties in pairing between heteromorphic chromosomes in the heterogametic sex increasing aneuploidy or meiotic arrest. To address these questions, we developed a population genetic model in which the sex chromosome aneuploidy rate is elevated when males carry an inversion on either the X or Y chromosome. We show that inversions fix more easily when male-beneficial alleles are dominant, and that inversions on the Y chromosome fix with lower selection coefficients than comparable X chromosome inversions. We further show that sex chromosome inversions can often invade and fix despite causing a substantial increase in the risk of aneuploidy. As sexual antagonism can lead to the fixation of inversions that increase sex chromosomes aneuploidy (which underlies genetic diseases including Klinefelter and Turner syndrome in humans) selection could subsequently favor diverse mechanisms to reduce aneuploidy-including alternative meiotic mechanisms, translocations to, and fusions with, the sex chromosomes, and sex chromosome turnover. PMID- 29021278 TI - Dual Roles of Glutathione in Ecdysone Biosynthesis and Antioxidant Function During Larval Development in Drosophila. AB - Ecdysteroids, including the biologically active hormone 20-hydroxyecdysone (20E), play essential roles in controlling many developmental and physiological events in insects. Ecdysteroid biosynthesis is achieved by a series of specialized enzymes encoded by the Halloween genes. Recently, a new class of Halloween gene, noppera-bo (nobo), encoding a glutathione S-transferase (GST) in dipteran and lepidopteran species, has been identified and characterized. GSTs are well known to conjugate substrates with the reduced form of glutathione (GSH), a bioactive tripeptide composed of glutamate, cysteine, and glycine. We hypothesized that GSH itself is required for ecdysteroid biosynthesis. However, the role of GSH in steroid hormone biosynthesis has not been examined in any organisms. Here, we report phenotypic analysis of a complete loss-of-function mutant in the gamma glutamylcysteine synthetase catalytic subunit (Gclc) gene in the fruit fly Drosophila melanogasterGclc encodes the evolutionarily conserved catalytic component of the enzyme that conjugates glutamate and cysteine in the GSH biosynthesis pathway. Complete Gclc loss-of-function leads to drastic GSH deficiency in the larval body fluid. Gclc mutant animals show a larval-arrest phenotype. Ecdysteroid titer in Gclc mutant larvae decreases, and the larval arrest phenotype is rescued by oral administration of 20E or cholesterol. Moreover, Gclc mutant animals exhibit abnormal lipid deposition in the prothoracic gland, a steroidogenic organ during larval development. All of these phenotypes are reminiscent to nobo loss-of-function animals. On the other hand, Gclc mutant larvae also exhibit a significant reduction in antioxidant capacity. Consistent with this phenotype, Gclc mutant larvae are more sensitive to oxidative stress response as compared to wild-type. Nevertheless, the ecdysteroid biosynthesis defect in Gclc mutant animals is not associated with loss of antioxidant function. Our data raise the unexpected hypothesis that a primary role of GSH in early D. melanogaster larval development is ecdysteroid biosynthesis, independent from the antioxidant role of GSH. PMID- 29021283 TI - Variations in energy intake: it is more complicated than we think. PMID- 29021280 TI - Primary Cilium Formation and Ciliary Protein Trafficking Is Regulated by the Atypical MAP Kinase MAPK15 in Caenorhabditis elegans and Human Cells. AB - Motile and immotile (or primary) cilia are microtubule-based structures that mediate multiple cellular functions, including the transduction of environmental cues, developmental signaling, cellular motility, and modulation of fluid flow. Although their core architectures are similar, motile and primary cilia exhibit marked structural differences that underlie distinct functional properties. However, the extent to which ciliogenesis mechanisms are shared between these different cilia types is not fully described. Here, we report that the atypical MAP kinase MAPK15 (ERK7/8), implicated in the formation of vertebrate motile cilia, also regulates the formation of primary cilia in Caenorhabditis elegans sensory neurons and human cells. We find that MAPK15 localizes to a basal body subdomain with the ciliopathy protein BBS7 and to cell-cell junctions. MAPK15 also regulates the localization of ciliary proteins involved in cilium structure, transport, and signaling. Our results describe a primary cilia-related role for this poorly studied member of the MAPK family in vivo, and indicate a broad requirement for MAPK15 in the formation of multiple ciliary classes across species. PMID- 29021284 TI - When to eat! PMID- 29021281 TI - Survival of BRCA2-Deficient Cells Is Promoted by GIPC3, a Novel Genetic Interactor of BRCA2. AB - BRCA2 loss-of-heterozygosity (LOH) is frequently observed in BRCA2-mutated tumors, but its biallelic loss causes embryonic lethality in mice and inhibits proliferation of normal somatic cells. Therefore, it remains unclear how loss of BRCA2 contributes to tumorigenesis. One possibility is that mutation in potential genetic interactors of BRCA2, such as TRP53, is required for cell survival/proliferation in the absence of BRCA2. In this study, using an insertional mutagenesis screen in mouse embryonic stem cells (mESC), we have identified GIPC3 (GAIP-interacting protein C-terminus 3) as a BRCA2 genetic interactor that contributes to survival of Brca2-null mESC. GIPC3 does not compensate for BRCA2 loss in the repair of double-strand breaks. Mass spectrometric analysis resulted in the identification of G-protein signaling transducers, APPL1 and APPL2, as potential GIPC3-binding proteins. A mutant GIPC3 (His155Ala) that does not bind to APPL1/2 failed to rescue the lethality of Brca2 null mESC, suggesting that the cell viability by GIPC3 is mediated via APPL1/2. Finally, the physiological significance of GIPC3 as a genetic interactor of BRCA2 is supported by the observation that Brca2-null embryos with Gipc3 overexpression are developmentally more advanced than their control littermates. Taken together, we have uncovered a novel role for GIPC3 as a BRCA2 genetic interactor. PMID- 29021282 TI - Methionine metabolism is essential for SIRT1-regulated mouse embryonic stem cell maintenance and embryonic development. AB - Methionine metabolism is critical for epigenetic maintenance, redox homeostasis, and animal development. However, the regulation of methionine metabolism remains unclear. Here, we provide evidence that SIRT1, the most conserved mammalian NAD+ dependent protein deacetylase, is critically involved in modulating methionine metabolism, thereby impacting maintenance of mouse embryonic stem cells (mESCs) and subsequent embryogenesis. We demonstrate that SIRT1-deficient mESCs are hypersensitive to methionine restriction/depletion-induced differentiation and apoptosis, primarily due to a reduced conversion of methionine to S adenosylmethionine. This reduction markedly decreases methylation levels of histones, resulting in dramatic alterations in gene expression profiles. Mechanistically, we discover that the enzyme converting methionine to S adenosylmethionine in mESCs, methionine adenosyltransferase 2a (MAT2a), is under control of Myc and SIRT1. Consistently, SIRT1 KO embryos display reduced Mat2a expression and histone methylation and are sensitive to maternal methionine restriction-induced lethality, whereas maternal methionine supplementation increases the survival of SIRT1 KO newborn mice. Our findings uncover a novel regulatory mechanism for methionine metabolism and highlight the importance of methionine metabolism in SIRT1-mediated mESC maintenance and embryonic development. PMID- 29021286 TI - Pomegranate juice, but not an extract, confers a lower glycemic response on a high-glycemic index food: randomized, crossover, controlled trials in healthy subjects. AB - Background: Low-glycemic index diets have demonstrated health benefits associated with a reduced risk of developing type 2 diabetes.Objectives: We tested whether pomegranate polyphenols could lower the glycemic response of a high-glycemic index food when consumed together and the mechanism by which this might occur.Design: We compared the acute effect of a pomegranate juice and a polyphenol-rich extract from pomegranate (supplement) on the bread-derived postprandial blood glucose concentration in 2 randomized, crossover, controlled studies (double-blinded for the supplements), each on 16 healthy volunteers. An additional randomized, crossover, controlled study on 16 volunteers consuming constituent fruit acids in a pH-balanced solution (same pH as pomegranate) and bread was conducted to determine any contributions to postprandial responses caused by acidic beverages.Results: As primary outcome, the incremental area under the curve for bread-derived blood glucose (-33.1% +/- 18.1%, P = 0.000005) and peak blood glucose (25.4% +/- 19.3%, P = 0.0004) were attenuated by pomegranate juice, compared with a control solution containing the equivalent amount of sugars. In contrast, the pomegranate supplement, or a solution containing the malic and citric acid components of the juice, was ineffective. The pomegranate polyphenol punicalagin was a very effective inhibitor of human alpha-amylase in vitro, comparable to the drug acarbose. Neither the pomegranate extract nor the individual component polyphenols inhibited 14C-D-glucose transport across differentiated Caco-2/TC7 cell monolayers, but they inhibited uptake of 14C-glucose into Xenopus oocytes expressing the human glucose transporter type 2. Further, some of the predicted pomegranate gut microbiota metabolites modulated 14C-D-glucose and 14C-deoxy-D-glucose uptake into hepatic HepG2 cells.Conclusions: These data indicate that pomegranate polyphenols, when present in a beverage but not in a supplement, can reduce the postprandial glycemic response of bread, whereas microbial metabolites from pomegranate polyphenols exhibit the potential to further modulate sugar metabolism much later in the postprandial period. This trial was registered at clinicaltrials.gov as NCT02486978, NCT02624609, and NCT03242876. PMID- 29021285 TI - Placental vitamin D metabolism and its associations with circulating vitamin D metabolites in pregnant women. AB - Background: Little is known about placental vitamin D metabolism and its impact on maternal circulating vitamin D concentrations in humans.Objective: This study sought to advance the current understanding of placental vitamin D metabolism and its role in modulating maternal circulating vitamin D metabolites during pregnancy.Design: Nested within a feeding study, 24 healthy pregnant women (26-29 wk of gestation) consumed a single amount of vitamin D (511 IU/d from diet and a cholecalciferol supplement) for 10 wk. Concentrations of placental and blood vitamin D metabolites and placental messenger RNA (mRNA) abundance of vitamin D metabolic pathway components were quantified. In addition, cultured human trophoblasts were incubated with 13C-cholecalciferol to examine the intracellular generation and secretion of vitamin D metabolites along with the regulation of target genes.Results: In placental tissue, 25-hydroxyvitamin D3 [25(OH)D3] was strongly correlated (r = 0.83, P < 0.001) with 24,25-dihydroxyvitamin D3 Moreover, these placental metabolites were strongly correlated (r <= 0.85, P <= 0.04) with their respective metabolites in maternal circulation. Positive associations (P <= 0.045) were also observed between placental mRNA abundance of vitamin D metabolic components and circulating vitamin D metabolites [i.e., LDL related protein 2 (LRP2, also known as megalin) with 25(OH)D3 and the C3 epimer of 25(OH)D3 [3-epi-25(OH)D3]; cubilin (CUBN) with 25(OH)D3; 25-hydroxylase (CYP2R1) with 3-epi-25(OH)D3; 24-hydroxylase (CYP24A1) with 25(OH)D3, 3-epi 25(OH)D3, and 1,25-dihydroxyvitamin D3 [1,25(OH)2D3]; and 1alpha-hydroxylase [(CYP27B1) with 3-epi-25(OH)D3 and 1,25(OH)2D3]. Notably, in vitro experiments with trophoblasts showed increased production and secretion of 25(OH)D3 and higher CYP24A1 gene transcript abundance in response to cholecalciferol treatment.Conclusions: The numerous associations of many of the placental biomarkers of vitamin D metabolism with circulating vitamin D metabolites among pregnant women [including a CYP27B1-associated increase in 1,25(OH)2D3] and the evidence of trophoblast production and secretion of vitamin D metabolites, especially 25(OH)D3, suggest that the placenta may play an active role in modulating the vitamin D metabolite profile in maternal circulation in human pregnancy. This trial was registered at clinicaltrials.gov as NCT03051867. PMID- 29021287 TI - Surrogate disease markers as substitutes for chronic disease outcomes in studies of diet and chronic disease relations. AB - Surrogate biomarkers for clinical outcomes afford scientific and economic efficiencies when investigating nutritional interventions in chronic diseases. However, valid scientific results are dependent on the qualification of these disease markers that are intended to be substitutes for a clinical outcome and to accurately predict benefit or harm. In this article, we examine the challenges of evaluating surrogate markers and describe the framework proposed in a 2010 Institute of Medicine report. The components of this framework are presented in the context of nutritional interventions for chronic diseases. We present case studies of 2 well-accepted surrogate markers [blood pressure within sodium intake and cardiovascular disease (CVD) context and low density lipoprotein-cholesterol concentrations within a saturated fat and CVD context]. We also describe additional cases in which the evidence is insufficient to validate their surrogate status. Guidance is offered for future research that evaluates or uses surrogate markers. PMID- 29021289 TI - Quantifying the regulatory effect size of cis-acting genetic variation using allelic fold change. AB - Mapping cis-acting expression quantitative trait loci (cis-eQTL) has become a popular approach for characterizing proximal genetic regulatory variants. In this paper, we describe and characterize log allelic fold change (aFC), the magnitude of expression change associated with a given genetic variant, as a biologically interpretable unit for quantifying the effect size of cis-eQTLs and a mathematically convenient approach for systematic modeling of cis-regulation. This measure is mathematically independent from expression level and allele frequency, additive, applicable to multiallelic variants, and generalizable to multiple independent variants. We provide efficient tools and guidelines for estimating aFC from both eQTL and allelic expression data sets and apply it to Genotype Tissue Expression (GTEx) data. We show that aFC estimates independently derived from eQTL and allelic expression data are highly consistent, and identify technical and biological correlates of eQTL effect size. We generalize aFC to analyze genes with two eQTLs in GTEx and show that in nearly all cases the two eQTLs act independently in regulating gene expression. In summary, aFC is a solid measure of cis-regulatory effect size that allows quantitative interpretation of cellular regulatory events from population data, and it is a valuable approach for investigating novel aspects of eQTL data sets. PMID- 29021292 TI - Metabolite Profiling Reveals the Glutathione Biosynthetic Pathway as a Therapeutic Target in Triple-Negative Breast Cancer. AB - Cancer cells can exhibit altered dependency on specific metabolic pathways and targeting these dependencies is a promising therapeutic strategy. Triple-negative breast cancer (TNBC) is an aggressive and genomically heterogeneous subset of breast cancer that is resistant to existing targeted therapies. To identify metabolic pathway dependencies in TNBC, we first conducted mass spectrometry based metabolomics of TNBC and control cells. Relative levels of intracellular metabolites distinguished TNBC from nontransformed breast epithelia and revealed two metabolic subtypes within TNBC that correlate with markers of basal-like versus non-basal-like status. Among the distinguishing metabolites, levels of the cellular redox buffer glutathione were lower in TNBC cell lines compared to controls and markedly lower in non-basal-like TNBC. Significantly, these cell lines showed enhanced sensitivity to pharmacologic inhibition of glutathione biosynthesis that was rescued by N-acetylcysteine, demonstrating a dependence on glutathione production to suppress ROS and support tumor cell survival. Consistent with this, patients whose tumors express elevated levels of gamma glutamylcysteine ligase, the rate-limiting enzyme in glutathione biosynthesis, had significantly poorer survival. We find, further, that agents that limit the availability of glutathione precursors enhance both glutathione depletion and TNBC cell killing by gamma-glutamylcysteine ligase inhibitors in vitro Importantly, we demonstrate the ability to this approach to suppress glutathione levels and TNBC xenograft growth in vivo Overall, these findings support the potential of targeting the glutathione biosynthetic pathway as a therapeutic strategy in TNBC and identify the non-basal-like subset as most likely to respond. Mol Cancer Ther; 17(1); 264-75. (c)2017 AACR. PMID- 29021291 TI - A genome-wide interactome of DNA-associated proteins in the human liver. AB - Large-scale efforts like the ENCODE Project have made tremendous progress in cataloging the genomic binding patterns of DNA-associated proteins (DAPs), such as transcription factors (TFs). However, most chromatin immunoprecipitation sequencing (ChIP-seq) analyses have focused on a few immortalized cell lines whose activities and physiology differ in important ways from endogenous cells and tissues. Consequently, binding data from primary human tissue are essential to improving our understanding of in vivo gene regulation. Here, we identify and analyze more than 440,000 binding sites using ChIP-seq data for 20 DAPs in two human liver tissue samples. We integrated binding data with transcriptome and phased WGS data to investigate allelic DAP interactions and the impact of heterozygous sequence variation on the expression of neighboring genes. Our tissue-based data set exhibits binding patterns more consistent with liver biology than cell lines, and we describe uses of these data to better prioritize impactful noncoding variation. Collectively, our rich data set offers novel insights into genome function in human liver tissue and provides a valuable resource for assessing disease-related disruptions. PMID- 29021294 TI - Identification of Serological Biomarkers for Early Diagnosis of Lung Cancer Using a Protein Array-Based Approach. AB - Lung cancer (LC) remains the leading cause of mortality from malignant tumors worldwide. Currently, a lack of serological biomarkers for early LC diagnosis is a major roadblock for early intervention and prevention of LC. To undertake this challenge, we employed a two-phase strategy to discover and validate a biomarker panel using a protein array-based approach. In Phase I, we obtained serological autoimmune profiles of 80 LC patients and 20 healthy subjects on HuProt arrays, and identified 170 candidate proteins significantly associated with LC. In Phase II, we constructed a LC focused array with the 170 proteins, and profiled a large cohort, comprised of 352 LC patients, 93 healthy individuals, and 101 patients with lung benign lesions (LBL). The comparison of autoimmune profiles between the early stage LC and the combined group of healthy and LBL allowed us to identify and validate a biomarker panel of p53, HRas, and ETHE1 for diagnosis of early stage LC with 50% sensitivity at >90% specificity. Finally, the performance of this biomarker panel was confirmed in ELISA tests. In summary, this study represents one of the most comprehensive proteome-wide surveys with one of the largest (i.e. 1,101 unique samples) and most diverse (i.e. nine disease groups) cohorts, resulting in a biomarker panel with good performance. PMID- 29021293 TI - PPARgamma Ligand-induced Annexin A1 Expression Determines Chemotherapy Response via Deubiquitination of Death Domain Kinase RIP in Triple-negative Breast Cancers. AB - Metastatic breast cancer is still incurable so far; new specifically targeted and more effective therapies for triple-negative breast cancer (TNBC) are required in the clinic. In this study, our clinical data have established that basal and claudin-low subtypes of breast cancer (TNBC types) express significantly higher levels of Annexin A1 (ANXA1) with poor survival outcomes. Using human cancer cell lines that model the TNBC subtype, we observed a strong positive correlation between expression of ANXA1 and PPARgamma. A similar correlation between these two markers was also established in our clinical breast cancer patients' specimens. To establish a link between these two markers in TNBC, we show de novo expression of ANXA1 is induced by activation of PPARgamma both in vitro and in vivo and it has a predictive value in determining chemosensitivity to PPARgamma ligands. Mechanistically, we show for the first time PPARgamma-induced ANXA1 protein directly interacts with receptor interacting protein-1 (RIP1), promoting its deubiquitination and thereby activating the caspase-8-dependent death pathway. We further identified this underlying mechanism also involved a PPARgamma-induced ANXA1-dependent autoubiquitination of cIAP1, the direct E3 ligase of RIP1, shifting cIAP1 toward proteosomal degradation. Collectively, our study provides first insight for the suitability of using drug-induced expression of ANXA1 as a new player in RIP1-induced death machinery in TNBCs, presenting itself both as an inclusion criterion for patient selection and surrogate marker for drug response in future PPARgamma chemotherapy trials. Mol Cancer Ther; 16(11); 2528-42. (c)2017 AACR. PMID- 29021288 TI - Co-expression networks reveal the tissue-specific regulation of transcription and splicing. AB - Gene co-expression networks capture biologically important patterns in gene expression data, enabling functional analyses of genes, discovery of biomarkers, and interpretation of genetic variants. Most network analyses to date have been limited to assessing correlation between total gene expression levels in a single tissue or small sets of tissues. Here, we built networks that additionally capture the regulation of relative isoform abundance and splicing, along with tissue-specific connections unique to each of a diverse set of tissues. We used the Genotype-Tissue Expression (GTEx) project v6 RNA sequencing data across 50 tissues and 449 individuals. First, we developed a framework called Transcriptome Wide Networks (TWNs) for combining total expression and relative isoform levels into a single sparse network, capturing the interplay between the regulation of splicing and transcription. We built TWNs for 16 tissues and found that hubs in these networks were strongly enriched for splicing and RNA binding genes, demonstrating their utility in unraveling regulation of splicing in the human transcriptome. Next, we used a Bayesian biclustering model that identifies network edges unique to a single tissue to reconstruct Tissue-Specific Networks (TSNs) for 26 distinct tissues and 10 groups of related tissues. Finally, we found genetic variants associated with pairs of adjacent nodes in our networks, supporting the estimated network structures and identifying 20 genetic variants with distant regulatory impact on transcription and splicing. Our networks provide an improved understanding of the complex relationships of the human transcriptome across tissues. PMID- 29021295 TI - Mitochondrial Cardiomyopathy Caused by Elevated Reactive Oxygen Species and Impaired Cardiomyocyte Proliferation. AB - RATIONALE: Although mitochondrial diseases often cause abnormal myocardial development, the mechanisms by which mitochondria influence heart growth and function are poorly understood. OBJECTIVE: To investigate these disease mechanisms, we studied a genetic model of mitochondrial dysfunction caused by inactivation of Tfam (transcription factor A, mitochondrial), a nuclear-encoded gene that is essential for mitochondrial gene transcription and mitochondrial DNA replication. METHODS AND RESULTS: Tfam inactivation by Nkx2.5Cre caused mitochondrial dysfunction and embryonic lethal myocardial hypoplasia. Tfam inactivation was accompanied by elevated production of reactive oxygen species (ROS) and reduced cardiomyocyte proliferation. Mosaic embryonic Tfam inactivation confirmed that the block to cardiomyocyte proliferation was cell autonomous. Transcriptional profiling by RNA-seq demonstrated the activation of the DNA damage pathway. Pharmacological inhibition of ROS or the DNA damage response pathway restored cardiomyocyte proliferation in cultured fetal cardiomyocytes. Neonatal Tfam inactivation by AAV9-cTnT-Cre caused progressive, lethal dilated cardiomyopathy. Remarkably, postnatal Tfam inactivation and disruption of mitochondrial function did not impair cardiomyocyte maturation. Rather, it elevated ROS production, activated the DNA damage response pathway, and decreased cardiomyocyte proliferation. We identified a transient window during the first postnatal week when inhibition of ROS or the DNA damage response pathway ameliorated the detrimental effect of Tfam inactivation. CONCLUSIONS: Mitochondrial dysfunction caused by Tfam inactivation induced ROS production, activated the DNA damage response, and caused cardiomyocyte cell cycle arrest, ultimately resulting in lethal cardiomyopathy. Normal mitochondrial function was not required for cardiomyocyte maturation. Pharmacological inhibition of ROS or DNA damage response pathways is a potential strategy to prevent cardiac dysfunction caused by some forms of mitochondrial dysfunction. PMID- 29021296 TI - Lactate Promotes Synthetic Phenotype in Vascular Smooth Muscle Cells. AB - RATIONALE: The phenotypes of vascular smooth muscle cells (vSMCs) comprise a continuum bounded by predominantly contractile and synthetic cells. Some evidence suggests that contractile vSMCs can assume a more synthetic phenotype in response to ischemic injury, but the mechanisms that activate this phenotypic switch are poorly understood. OBJECTIVE: To determine whether lactate, which increases in response to regional ischemia, may promote the synthetic phenotype in vSMCs. METHODS AND RESULTS: Experiments were performed with vSMCs that had been differentiated from human induced pluripotent stem cells and then cultured in glucose-free, lactate-enriched (L+) medium or in standard (L-) medium. Compared with the L- medium, the L+ medium was associated with significant increases in synthetic vSMC marker expression, proliferation, and migration and with significant declines in contractile and apoptotic activity. Furthermore, these changes were accompanied by increases in the expression of monocarboxylic acid transporters and were generally attenuated both by the blockade of monocarboxylic acid transporter activity and by transfection with iRNA for NDRG (N-myc downstream regulated gene). Proteomics, biomarker, and pathway analyses suggested that the L+ medium tended to upregulate the expression of synthetic vSMC markers, the production of extracellular proteins that participate in tissue construction or repair, and the activity of pathways that regulate cell proliferation and migration. Observations in hypoxia-cultured vSMCs were similar to those in L+ cultured vSMCs, and assessments in a swine myocardial infarction model suggested that measurements of lactate levels, lactate-dehydrogenase levels, vSMC proliferation, and monocarboxylic acid transporter and NDRG expression were greater in the ischemic zone than in nonischemic tissues. CONCLUSIONS: These results demonstrate for the first time that vSMCs assume a more synthetic phenotype in a microenvironment that is rich in lactate. Thus, mechanisms that link glucose metabolism to vSMC phenotypic switching could play a role in the pathogenesis and treatment of cardiovascular disease. PMID- 29021290 TI - Identifying cis-mediators for trans-eQTLs across many human tissues using genomic mediation analysis. AB - The impact of inherited genetic variation on gene expression in humans is well established. The majority of known expression quantitative trait loci (eQTLs) impact expression of local genes (cis-eQTLs). More research is needed to identify effects of genetic variation on distant genes (trans-eQTLs) and understand their biological mechanisms. One common trans-eQTLs mechanism is "mediation" by a local (cis) transcript. Thus, mediation analysis can be applied to genome-wide SNP and expression data in order to identify transcripts that are "cis-mediators" of trans-eQTLs, including those "cis-hubs" involved in regulation of many trans genes. Identifying such mediators helps us understand regulatory networks and suggests biological mechanisms underlying trans-eQTLs, both of which are relevant for understanding susceptibility to complex diseases. The multitissue expression data from the Genotype-Tissue Expression (GTEx) program provides a unique opportunity to study cis-mediation across human tissue types. However, the presence of complex hidden confounding effects in biological systems can make mediation analyses challenging and prone to confounding bias, particularly when conducted among diverse samples. To address this problem, we propose a new method: Genomic Mediation analysis with Adaptive Confounding adjustment (GMAC). It enables the search of a very large pool of variables, and adaptively selects potential confounding variables for each mediation test. Analyses of simulated data and GTEx data demonstrate that the adaptive selection of confounders by GMAC improves the power and precision of mediation analysis. Application of GMAC to GTEx data provides new insights into the observed patterns of cis-hubs and trans eQTL regulation across tissue types. PMID- 29021299 TI - A randomized, placebo-controlled, double-blind Phase 2 trial comparing the reactogenicity and immunogenicity of a single >=2x108 colony forming units [cfu] standard-dose versus a >=2x109 cfu high-dose of CVD 103-HgR live attenuated oral cholera vaccine, with Shanchol inactivated oral vaccine as an open label immunologic comparator. AB - Reactive immunization with a single-dose cholera vaccine that could rapidly (within days) protect immunologically-naive individuals during "virgin soil" epidemics would facilitate cholera control. One dose of attenuated Vibrio cholerae O1 classical Inaba vaccine CVD 103-HgR (VaxchoraTM) containing >=2x108 colony forming units (cfu) induces vibriocidal antibody seroconversion (correlate of protection) in >90% of U.S. adults. A previous CVD 103-HgR commercial formulation required >=2x109 cfu to elicit high seroconversion in developing country populations. We compared vibriocidal responses of Malians (18-45 years old) randomized to ingest a single >=2x108 cfu standard-dose (N=50) or >=2x109 cfu high-dose (N=50) of PaxVax CVD 103-HgR with buffer, or two doses (N=50) of ShancholTM inactivated cholera vaccine (the immunologic comparator). To maintain blinding, participants were dosed twice, 2 weeks apart; CVD 103-HgR recipients ingested placebo 2 weeks before or after ingesting vaccine. Seroconversion (>=4 fold vibriocidal titer rise) between baseline and 14 days after CVD 103-HgR, and following the first and second dose of Shanchol were the main outcomes measured. By day 14 post-vaccination, seroconversion after a single standard-dose of CVD 103-HgR was 71.7% (33/46) and 83.3% (40/48) after high-dose. Seroconversion following first-dose Shanchol 56.0% (28/50) was significantly lower compared with high-dose CVD 103-HgR (p=0.003). High-dose CVD 103-HgR vibriocidal geometric mean titer (GMT) exceeded standard-dose GMT at day 14 (214 vs 95, p=0.045) and was ~2 fold higher than day 7 and day 14 GMT following the first Shanchol dose (p>0.05). High-dose CVD 103-HgR is recommended for accelerated evaluation in developing countries to assess efficacy and practicality in field situations. PMID- 29021297 TI - Parkinson's Disease Is Not Simply a Prion Disorder. AB - The notion that prion-like spreading of misfolded alpha-synuclein (alpha-SYN) causes Parkinson's disease (PD) has received a great deal of attention. Although attractive in its simplicity, the hypothesis is difficult to reconcile with postmortem analysis of human brains and connectome-mapping studies. An alternative hypothesis is that PD pathology is governed by regional or cell autonomous factors. Although these factors provide an explanation for the pattern of neuronal loss in PD, they do not readily explain the apparently staged distribution of Lewy pathology in many PD brains, the feature of the disease that initially motivated the spreading hypothesis by Braak and colleagues. While each hypothesis alone has its shortcomings, a synthesis of the two can explain much of what we know about the etiopathology of PD.Dual Perspectives Companion Paper: Prying into the Prion Hypothesis for Parkinson's Disease, by Patrik Brundin and Ronald Melki. PMID- 29021300 TI - High-Resolution Epitope Positioning of a Large Collection of Neutralizing and Nonneutralizing Single-Domain Antibodies on the Enzymatic and Binding Subunits of Ricin Toxin. AB - We previously produced a heavy-chain-only antibody (Ab) VH domain (VHH)-displayed phage library from two alpacas that had been immunized with ricin toxoid and nontoxic mixtures of the enzymatic ricin toxin A subunit (RTA) and binding ricin toxin B subunit (RTB) (D. J. Vance, J. M. Tremblay, N. J. Mantis, and C. B. Shoemaker, J Biol Chem 288:36538-36547, 2013, https://doi.org/10.1074/jbc.M113.519207). Initial and subsequent screens of that library by direct enzyme-linked immunosorbent assay (ELISA) yielded more than two dozen unique RTA- and RTB-specific VHHs, including 10 whose structures were subsequently solved in complex with RTA. To generate a more complete antigenic map of ricin toxin and to define the epitopes associated with toxin-neutralizing activity, we subjected the VHH-displayed phage library to additional "pannings" on both receptor-bound ricin and antibody-captured ricin. We now report the full length DNA sequences, binding affinities, and neutralizing activities of 68 unique VHHs: 31 against RTA, 33 against RTB, and 4 against ricin holotoxin. Epitope positioning was achieved through cross-competition ELISAs performed with a panel of monoclonal antibodies (MAbs) and verified, in some instances, with hydrogen-deuterium exchange mass spectrometry. The 68 VHHs grouped into more than 20 different competition bins. The RTA-specific VHHs with strong toxin neutralizing activities were confined to bins that overlapped two previously identified neutralizing hot spots, termed clusters I and II. The four RTB specific VHHs with potent toxin-neutralizing activity grouped within three adjacent bins situated at the RTA-RTB interface near cluster II. These results provide important insights into epitope interrelationships on the surface of ricin and delineate regions of vulnerability that can be exploited for the purpose of vaccine and therapeutic development. PMID- 29021301 TI - Recent Approaches To Optimize Laboratory Assessment of Antinuclear Antibodies. AB - The presence of antinuclear antibodies (ANAs) is a hallmark of a number of systemic autoimmune rheumatic diseases, and testing is usually performed as part of the initial diagnostic workup when suspicion of an underlying autoimmune disorder is high. The indirect immunofluorescence antibody (IFA) technique is the preferred method for detecting ANAs, as it demonstrates binding to specific intracellular structures within the cells, resulting in a number of staining patterns that are usually categorized based on the cellular components recognized and the degree of binding, as reflected by the fluorescence intensity or titer. As a screening tool, the ANA patterns can guide confirmatory testing useful in elucidating a specific clinical diagnosis or prognosis. However, routine use of ANA IFA testing as a global screening test is hampered by its labor intensiveness, subjectivity, and limited diagnostic specificity, among other factors. This review focuses on current efforts to standardize the nomenclature of ANA patterns and on alternative methods for ANA determination, as well as on recent advances in image-based computer algorithms to automate IFA testing in clinical laboratories. PMID- 29021302 TI - Development of a High-Throughput Respiratory Syncytial Virus Fluorescent Focus Based Microneutralization Assay. AB - Neutralizing antibodies specific for respiratory syncytial virus (RSV) represent a major protective mechanism against RSV infection, as demonstrated by the efficacy of the immune-prophylactic monoclonal antibody palivizumab in preventing RSV-associated lower respiratory tract infections in premature infants. Accordingly, the RSV neutralization assay has become a key functional method to assess the neutralizing activity of serum antibodies in preclinical animal models, epidemiology studies, and clinical trials. In this study, we qualified a 24-h, fluorescent focus-based microneutralization (RSVA FFA-MN) method that requires no medium exchange or pre- or postinfection processing to detect green fluorescent protein-expressing RSV strain A2 (RSVA-GFP)-infected cells, using a high-content imaging system for automated image acquisition and focus enumeration. The RSVA FFA-MN method was shown to be sensitive, with a limit of detection (LOD) and limit of quantitation (LOQ) of 1:10, or 3.32 log2; linear over a range of 4.27 to 9.65 log2 50% inhibitory concentration (IC50); and precise, with intra- and interassay coefficients of variation of <21%. This precision allowed the choice of a statistically justified 3-fold-rise seroresponse cutoff criterion. The repeatability and robustness of this method were demonstrated by including a pooled human serum sample in every assay as a positive control (PC). Over 3 years of testing between two laboratories, this PC generated data falling within 2.5 standard deviations of the mean 98.7% of the time (n = 1,720). This high-throughput and reliable RSV microneutralization assay has proven useful for testing sera from preclinical vaccine candidate evaluation studies, epidemiology studies, and both pediatric and adult vaccine clinical trials. PMID- 29021298 TI - Prying into the Prion Hypothesis for Parkinson's Disease. AB - In Parkinson's disease, intracellular alpha-synuclein inclusions form in neurons. We suggest that prion-like behavior of alpha-synuclein is a key component in Parkinson's disease pathogenesis. Although multiple molecular changes are involved in the triggering of the disease process, we propose that neuron-to neuron transfer is a crucial event that is essential for Lewy pathology to spread from one brain region to another. In this review, we describe key findings in human postmortem brains, cultured cells, and animal models of disease that support the idea that alpha-synuclein can act as a prion. We consider potential triggers of the alpha-synuclein misfolding and why the aggregates escape cellular degradation under disease conditions. We also discuss whether different strains of alpha-synuclein fibrils can underlie differences in cellular and regional distribution of aggregates in different synucleinopathies. Our conclusion is that alpha-synuclein probably acts as a prion in human diseases, and a deeper understanding of this step in the pathogenesis of Parkinson's disease can facilitate the development of disease-modifying therapies in the future.Dual Perspectives Companion Paper: Parkinson's Disease Is Not Simply a Prion Disorder, by D. James Surmeier, Jose A. Obeso, and Glenda M. Halliday. PMID- 29021303 TI - A Single Intramuscular Dose of a Plant-Made Virus-Like Particle Vaccine Elicits a Balanced Humoral and Cellular Response and Protects Young and Aged Mice from Influenza H1N1 Virus Challenge despite a Modest/Absent Humoral Response. AB - Virus-like-particle (VLP) influenza vaccines can be given intramuscularly (i.m.) or intranasally (i.n.) and may have advantages over split-virion formulations in the elderly. We tested a plant-made VLP vaccine candidate bearing the viral hemagglutinin (HA) delivered either i.m. or i.n. in young and aged mice. Young adult (5- to 8-week-old) and aged (16- to 20-month-old) female BALB/c mice received a single 3-MUg dose based on the HA (A/California/07/2009 H1N1) content of a plant-made H1-VLP (i.m. or i.n.) split-virion vaccine (i.m.) or were left naive. After vaccination, humoral and splenocyte responses were assessed, and some mice were challenged. Both VLP and split vaccines given i.m. protected 100% of the young animals, but the VLP group lost the least weight and had stronger humoral and cellular responses. Compared to split-vaccine recipients, aged animals vaccinated i.m. with VLP were more likely to survive challenge (80% versus 60%). The lung viral load postchallenge was lowest in the VLP i.m. groups. Mice vaccinated with VLP i.n. had little detectable immune response, but survival was significantly increased. In both age groups, i.m. administration of the H1 VLP vaccine elicited more balanced humoral and cellular responses and provided better protection from homologous challenge than the split-virion vaccine. PMID- 29021307 TI - Commercially Available Human-Induced Pluripotent Stem Cell-Derived Cardiomyocytes: Another Piece in Our Tool Box, but Not a Swiss Army Knife Yet. PMID- 29021306 TI - Characterization of a Human Induced Pluripotent Stem Cell-Derived Cardiomyocyte Model for the Study of Variant Pathogenicity: Validation of a KCNJ2 Mutation. AB - BACKGROUND: Long-QT syndrome is a potentially fatal condition for which 30% of patients are without a genetically confirmed diagnosis. Rapid identification of causal mutations is thus a priority to avoid at-risk situations that can lead to fatal cardiac events. Massively parallel sequencing technologies are useful for the identification of sequence variants; however, electrophysiological testing of newly identified variants is crucial to demonstrate causality. Long-QT syndrome could, therefore, benefit from having a standardized platform for functional characterization of candidate variants in the physiological context of human cardiomyocytes. METHODS AND RESULTS: Using a variant in Kir2.1 (Gly52Val) revealed by whole-exome sequencing in a patient presenting with symptoms of long QT syndrome as a proof of principle, we demonstrated that commercially available human induced pluripotent stem cell-derived cardiomyocytes are a powerful model for screening variants involved in genetic cardiac diseases. Immunohistochemistry experiments and whole-cell current recordings in human embryonic kidney cells expressing the wild-type or the mutant Kir2.1 demonstrated that Kir2.1-52V alters channel cellular trafficking and fails to form a functional channel. Using human induced pluripotent stem cell-derived cardiomyocytes, we not only confirmed these results but also further demonstrated that Kir2.1-52V is associated with a dramatic prolongation of action potential duration with evidence of arrhythmic activity, parameters which could not have been studied using human embryonic kidney cells. CONCLUSIONS: Our study confirms the pathogenicity of Kir2.1-52V in 1 patient with long-QT syndrome and also supports the use of isogenic human induced pluripotent stem cell-derived cardiomyocytes as a physiologically relevant model for the screening of variants of unknown function. PMID- 29021304 TI - Kinetics, Longevity, and Cross-Reactivity of Antineuraminidase Antibody after Natural Infection with Influenza A Viruses. AB - The kinetics, longevity, and breadth of antibodies to influenza virus neuraminidase (NA) in archival, sequential serum/plasma samples from influenza A virus (IAV) H5N1 infection survivors and from patients infected with the 2009 pandemic IAV (H1N1) virus were determined using an enzyme-linked lectin-based assay. The reverse-genetics-derived H4N1 viruses harboring a hemagglutinin (HA) segment from A/duck/Shan Tou/461/2000 (H4N9) and an NA segment derived from either IAV H5N1 clade 1, IAV H5N1 clade 2.3.4, the 2009 pandemic IAV (H1N1) (H1N1pdm), or A/Puerto Rico/8/1934 (H1N1) virus were used as the test antigens. These serum/plasma samples were also investigated by microneutralization (MN) and/or hemagglutination inhibition (HI) assays. Neuraminidase-inhibiting (NI) antibodies against N1 NA of both homologous and heterologous viruses were observed in H5N1 survivors and H1N1pdm patients. H5N1 survivors who were never exposed to H1N1pdm virus developed NI antibodies to H1N1pdm NA. Seroconversion of NI antibodies was observed in 65% of the H1N1pdm patients at day 7 after disease onset, but an increase in titer was not observed in serum samples obtained late in infection. On the other hand, an increase in seroconversion rate with the HI assay was observed in the follow-up series of sera obtained on days 7, 14, 28, and 90 after infection. The study also showed that NI antibodies are broadly reactive, while MN and HI antibodies are more strain specific. PMID- 29021305 TI - Predicting the Functional Impact of KCNQ1 Variants of Unknown Significance. AB - BACKGROUND: An emerging standard-of-care for long-QT syndrome uses clinical genetic testing to identify genetic variants of the KCNQ1 potassium channel. However, interpreting results from genetic testing is confounded by the presence of variants of unknown significance for which there is inadequate evidence of pathogenicity. METHODS AND RESULTS: In this study, we curated from the literature a high-quality set of 107 functionally characterized KCNQ1 variants. Based on this data set, we completed a detailed quantitative analysis on the sequence conservation patterns of subdomains of KCNQ1 and the distribution of pathogenic variants therein. We found that conserved subdomains generally are critical for channel function and are enriched with dysfunctional variants. Using this experimentally validated data set, we trained a neural network, designated Q1VarPred, specifically for predicting the functional impact of KCNQ1 variants of unknown significance. The estimated predictive performance of Q1VarPred in terms of Matthew's correlation coefficient and area under the receiver operating characteristic curve were 0.581 and 0.884, respectively, superior to the performance of 8 previous methods tested in parallel. Q1VarPred is publicly available as a web server at http://meilerlab.org/q1varpred. CONCLUSIONS: Although a plethora of tools are available for making pathogenicity predictions over a genome-wide scale, previous tools fail to perform in a robust manner when applied to KCNQ1. The contrasting and favorable results for Q1VarPred suggest a promising approach, where a machine-learning algorithm is tailored to a specific protein target and trained with a functionally validated data set to calibrate informatics tools. PMID- 29021308 TI - Machine Learning and Rare Variant Adjudication in Type 1 Long QT Syndrome. PMID- 29021309 TI - Recurrence risk factors in detachable balloon embolization of traumatic direct carotid cavernous fistulas in 188 patients. AB - PURPOSE: To investigate the effects of detachable balloons in embolizing traumatic carotid cavernous fistulas (TCCFs) and the risk factors for recurrence after balloon embolization. MATERIALS AND METHODS: 188 patients with TCCFs were enrolled, and clinical, treatment, and follow-up data were analyzed for possible risk factors for recurrence after embolization. RESULTS: Among 188 patients, 182 (96.8%) had successful balloon embolization; 6 patients failed. One balloon was used in 94 cases and multiple (two or more) balloons were used in 62 patients. 26 patients had occlusion of the parent artery whereas the remainder had parent artery preservation. Periprocedural complications occurred in 3 patients (1.6%) including cerebral embolism in 1 and abducent nerve paralysis in the other 2. Immediately following embolization, headache appeared in 92 patients and was relieved after 3-5 days with medications. A total of 165 patients (87.8%) had follow-up (6 months to 16 years, mean 5 years). 23 (13.9%) patients with internal carotid artery preservation had recurrence 1-33 days (mean 11 days) after the first embolization and were retreated to complete occlusion. Factors affecting recurrence were multiple balloons and residual fistula (p<0.05). Logistic regression confirmed the independent factors affecting recurrence were multiple balloons (>=2 balloons, OR 7.80, 95% CI 2.28 to 26.73; p=0.001) and residual fistula immediately following embolization (OR 10.46, 95% CI 2.99 to 36.5; p=0.000). CONCLUSION: The recurrence rate is high in the first month after embolization with detachable balloons, and multiple balloons and residual fistula are two independent factors affecting recurrence following balloon embolization. PMID- 29021310 TI - Embolization of palpebral and orbito-frontal fistulas: technical and anatomical considerations in treating high-flow superficial skin lesions with liquid embolics. AB - The treatment of palpebral and periorbital fistulas may be challenging due to the presence of multiple anastomosis with eloquent ophthalmic and intracranial vascular territories. Moreover, cosmetic and functional characteristics of this area pose unique challenges to open surgical approaches and endovascular therapy. We review the advantages and disadvantages of different liquid embolics in treating palpebral and periorbital fistulas as we describe three successfully treated cases. Moreover, we describe important anatomical landmarks that should be considered at the time of treatment of these lesions. PMID- 29021313 TI - Periorbital arteriovenous malformations: a word of caution. PMID- 29021312 TI - Incompletely obliterated cranial arteriovenous fistulae are safely and effectively treated with adjuvant epsilon-aminocaproic acid. AB - BACKGROUND: Administration of epsilon-aminocaproic acid (epsilonACA), as adjuvant therapy following incompletely embolized cranial dural arteriovenous (dAVFs) and direct carotid artery to cavernous sinus fistulae (CCFs), is a strategy to promote post-procedural thrombosis. However, the efficacy of epsilonACA to treat incompletely obliterated dAVFs and CCFs has not been published. The purpose of this study was to determine if administration of epsilonACA following incomplete embolization of cranial dAVFs or CCFs was associated with an increased likelihood of cure on follow-up imaging compared with patients not given adjuvant epsilonACA. METHODS: A retrospective cohort study was performed. All patients who underwent treatment of a dAVF or CCF at our institution between 1998 and 2016 were reviewed (n=262). Patients with residual shunting following the first attempted endovascular embolization were included in the analysis (n=52). The study groups were those treated with epsilonACA following incomplete obliteration of the fistula and those who were not. The primary outcome was obliteration of the fistula on initial follow-up imaging. Complication rates between cohorts were compared. RESULTS: 20 (38%) patients with incompletely obliterated fistulae were treated with adjuvant epsilonACA. A trend towards an improved rate of complete obliteration on initial follow-up imaging was observed in the group treated with epsilonACA (55% vs 34% in the group not treated with epsilonACA, p=0.14). No difference in clinical outcomes or thromboembolic complications was observed between the groups. CONCLUSIONS: In summary, these data suggest that administration of epsilonACA is a safe adjuvant therapy in the management of cranial dAVFs and CCFs that are incompletely treated endovascularly. PMID- 29021311 TI - Acute ischemic stroke with tandem lesions: technical endovascular management and clinical outcomes from the ESCAPE trial. AB - BACKGROUND: Tandem occlusions of the extracranial carotid and intracranial carotid or middle cerebral artery have a particularly poor prognosis without treatment. Several management strategies have been used with no clear consensus recommendations. We examined subjects with tandem occlusions enrolled in the ESCAPE trial and their outcomes. METHODS: Data are from the ESCAPE trial. Additional data were sought on interventions for each subject. RESULTS: There were 54 (17%) subjects with tandem extracranial and intracranial occlusions. Patients in the endovascular treatment arm (n=30) were more likely to be younger (median age 66 years, p<0.01), male (66.7%, p=0.03), diabetic, and without atrial fibrillation. Subjects with tandem occlusions were more likely to have intracranial internal carotid artery occlusions than M1 occlusions (p<0.01). Of the 30 intervention-arm subjects, 17 (57%) underwent emergency endovascular treatment of the extracranial disease, 10 subjects before and seven subjects after intracranial thrombectomy. Of the remaining 13 subjects, only four required staged carotid revascularization due to persistent severe carotid stenosis; four had cervical pseudo-occlusions with no residual stenosis after large distal carotid thrombus burden aspiration/retrieval. Outcomes were similar between subjects with and without tandem lesions. The use of antithrombotic agents after acute carotid artery stenting was variable but no symptomatic intracerebral hemorrhage was seen in subjects who underwent emergency endovascular treatment of extracranial carotid artery. CONCLUSIONS: Tandem occlusions occurred in one-sixth of patients and were treated highly variably within the ESCAPE trial. While outcomes were similar, the best method to treat the carotid artery in patients with tandem occlusion awaits further randomized data. TRIAL REGISTRATION NUMBER: NCT01778335. PMID- 29021314 TI - Augmented 3D venous navigation for neuroendovascular procedures. AB - BACKGROUND: Endovascular venous access is increasingly used for the treatment of many cerebrovascular diseases. The quality of venous roadmapping through arterial injection can be problematic because of contrast media dilution, slow flow velocity, and unilateral opacification of the venous system. OBJECTIVE: To describe our experience with the VesselNavigator (Philips Healthcare, Best, The Netherlands) in performing live 3D roadmapping for intracranial venous procedures. MATERIAL AND METHODS: Live 3D roadmapping is an image-processing technique that allows dynamic roadmapping of vessels with immediate adaptation to the C-arm movements without the need for contrast injection. For this purpose, 3D MR venography is overlaid on live fluoroscopy images after semiautomatic coregistration. The technique was applied to cases of idiopathic venous stenosis and arteriovenous fistula. RESULTS: The process of coregistration was performed by the principal operator in <5 min, just before the treatment. The accuracy was controlled peroperatively and was judged satisfactory. Three illustrative cases demonstrate the use of this software for venous navigation and pressure measurement (case 1), venous stenting (case 2), and transvenous embolization of a carotid-cavernous fistula (case 3). CONCLUSION: Our preliminary experience suggests that it is a feasible and safe technique for intracranial venous navigation and procedures. The potential lowering of overall radiation dose and contrast media use needs to be verified with further studies. PMID- 29021315 TI - Individual ant workers show self-control. AB - Often, the first option is not the best. Self-control can allow humans and animals to improve resource intake under such conditions. Self-control in animals is often investigated using intertemporal choice tasks-choosing a smaller reward immediately or a larger reward after a delay. However, intertemporal choice tasks may underestimate self-control, as test subjects may not fully understand the task. Vertebrates show much greater apparent self-control in more natural foraging contexts and spatial discounting tasks than in intertemporal choice tasks. However, little is still known about self-control in invertebrates. Here, we investigate self-control in the black garden ant Lasius niger We confront individual workers with a spatial discounting task, offering a high-quality reward far from the nest and a poor-quality reward closer to the nest. Most ants (69%) successfully ignored the closer, poorer reward in favour of the further, better one. However, when both the far and the close rewards were of the same quality, most ants (83%) chose the closer feeder, indicating that the ants were indeed exercising self-control, as opposed to a fixation on an already known food source. PMID- 29021316 TI - Maternally transmitted non-bacterial male killer in Drosophila biauraria. AB - A maternally inherited, all-female trait is widely found among arthropods, which is caused by bacterial endosymbionts such as Wolbachia, Rickettsia, Spiroplasma and Cardinium We discovered a single female of Drosophila biauraria, collected from Tomakomai, Hokkaido, Japan, that produced all-female offspring. This all female trait was maternally inherited in the iso-female line (SP12F) by backcrossing with males of a normal line (SP11-20) with a 1 : 1 sex ratio derived from the same population. The all-female trait was not affected by tetracycline treatment performed for two consecutive generations. However, the microinjection of filter-sterilized homogenate of SP12F females into SP11-20 females established all-female matrilines. Our data suggest the role of transmissible agents, most likely viruses, but not bacteria or protists, as the possible cause of the all female phenotype, which is likely to be achieved by killing of male embryos because egg hatch rates of SP12F were nearly half those of SP11-20. This is the first report in Diptera to demonstrate a maternally inherited virus-like element as the cause of the male-killing phenotype in D. biauraria. PMID- 29021317 TI - Sensory anatomy of the most aquatic of carnivorans: the Antarctic Ross seal, and convergences with other mammals. AB - Transitions to and from aquatic life involve transformations in sensory systems. The Ross seal, Ommatophoca rossii, offers the chance to investigate the cranio sensory anatomy in the most aquatic of all seals. The use of non-invasive computed tomography on specimens of this rare animal reveals, relative to other species of phocids, a reduction in the diameters of the semicircular canals and the parafloccular volume. These features are independent of size effects. These transformations parallel those recorded in cetaceans, but these do not extend to other morphological features such as the reduction in eye muscles and the length of the neck, emphasizing the independence of some traits in convergent evolution to aquatic life. PMID- 29021318 TI - Salinity-induced phenotypic plasticity in threespine stickleback sperm activation. AB - Phenotypic expression may be and often is influenced by an organism's developmental environment, referred to as phenotypic plasticity. The sperm cells of teleosts have been found to be inactive in the seminal plasma and are activated by osmotic shock for most fish species, through release in either hypertonic (for marine fish) or hypotonic (for freshwater fish) water. If this is the case, the regulatory system of sperm mobility should be reversed in salt- and freshwater fish. We tested this hypothesis by first activating sperm of salt- and freshwater populations of threespine stickleback in salt- and freshwater. The sperm from saltwater stickleback could be activated in either salinity, which matches the freshwater colonization history of the species, whereas the sperm from the freshwater population acted as predicted by the osmotic shock theory and was activated in freshwater only. As the freshwater population used here was calculated to be thousands of years old, we went on to test whether the trait(s) were plastic and sperm from freshwater males still could be activated in saltwater after individuals were exposed to saltwater. After raising freshwater stickleback in saltwater, we found the mature males to have active sperm in both saltwater and freshwater. Further, we also found the sperm of wild-caught freshwater stickleback to be active in saltwater after exposing those mature males to saltwater for only 2 days. This illustrates that the ability for stickleback sperm to be activated in a range of water qualities is an environmentally induced plastic trait. PMID- 29021319 TI - The purging of deleterious mutations in simple and complex mating environments. AB - There is a general expectation that sexual selection should align with natural selection to aid the purging of deleterious mutations, yet experiments comparing purging under monogamy versus polygamy have provided mixed results. Recent studies suggest that this may be because the simplified mating environments used in these studies reduce the benefit of sexual selection through males and hamper natural selection through females by increasing costs associated with sexual conflict. To test the effect of the physical mating environment on purging, we use experimental evolution in Drosophila melanogaster to track the frequency of four separate deleterious mutations in replicate populations that experience polygamy under either a simple or structurally complex mating arena while controlling for arena size. Consistent with past results suggesting a greater net benefit of polygamy in a complex environment, two of the mutations were purged significantly faster in this environment. The other two mutations showed no significant difference between environments. PMID- 29021321 TI - Association Between Urinary Sodium and Potassium Excretion and Blood Pressure Among Adults in the United States: National Health and Nutrition Examination Survey, 2014. AB - BACKGROUND: Higher levels of sodium and lower levels of potassium intake are associated with higher blood pressure. However, the shape and magnitude of these associations can vary by study participant characteristics or intake assessment method. Twenty-four-hour urinary excretion of sodium and potassium are unaffected by recall errors and represent all sources of intake, and were collected for the first time in a nationally representative US survey. Our objective was to assess the associations of blood pressure and hypertension with 24-hour urinary excretion of sodium and potassium among US adults. METHODS: Cross-sectional data were obtained from 766 participants age 20 to 69 years with complete blood pressure and 24-hour urine collections in the 2014 National Health and Nutrition Examination Survey, a nationally representative survey of the US noninstitutionalized population. Usual 24-hour urinary electrolyte excretion (sodium, potassium, and their ratio) was estimated from <=2 collections on nonconsecutive days, adjusting for day-to-day variability in excretion. Outcomes included systolic and diastolic blood pressure from the average of 3 measures and hypertension status, based on average blood pressure >=140/90 and antihypertensive medication use. RESULTS: After multivariable adjustment, each 1000-mg difference in usual 24-hour sodium excretion was directly associated with systolic (4.58 mm Hg; 95% confidence interval [CI], 2.64-6.51) and diastolic (2.25 mm Hg; 95% CI, 0.83-3.67) blood pressures. Each 1000-mg difference in potassium excretion was inversely associated with systolic blood pressure (-3.72 mm Hg; 95% CI, -6.01 to -1.42). Each 0.5 U difference in sodium-to-potassium ratio was directly associated with systolic blood pressure (1.72 mm Hg; 95% CI, 0.76-2.68). Hypertension was linearly associated with progressively higher sodium and lower potassium excretion; in comparison with the lowest quartile of excretion, the adjusted odds of hypertension for the highest quartile was 4.22 (95% CI, 1.36-13.15) for sodium, and 0.38 (95% CI, 0.17-0.87) for potassium (P<0.01 for trends). CONCLUSIONS: These cross-sectional results show a strong dose-response association between urinary sodium excretion and blood pressure, and an inverse association between urinary potassium excretion and blood pressure, in a nationally representative sample of US adults. PMID- 29021324 TI - Cerebrospinal Fluid Total Protein Reference Intervals Derived from 20 Years of Patient Data. AB - BACKGROUND: Reference intervals are vital for interpretation of laboratory results. Many existing reference intervals for cerebrospinal fluid total protein (CSF-TP) are derived from old literature because of the invasive nature of sampling. The objective of this study was to determine reference intervals for CSF-TP using available patient data. METHODS: Twenty years of hospital database information was mined for previously reported CSF-TP results. Associated demographic, laboratory, and clinical diagnosis (International Classification of Diseases 9/10 codes) details were extracted. CSF-TP results included 3 different analytical platforms: the Siemens Vista 1500, Beckman Lx20, and Roche Hitachi 917. From an initial data set of 19591 samples, the following exclusion criteria were applied: incomplete data, white blood cells (WBCs) >5 * 106/L, red blood cells (RBCs) >50 * 106/L, and glucose <2.5 mmol/L. Patient charts were reviewed in detail to exclude 60 different conditions for which increases in CSF-TP would be expected. A total of 6068 samples were included; 63% of the samples were from females. Continuous reference intervals were determined using quantile regression. Age- and sex-partitioned intervals were established using the quantile regression equation and splitting age-groups into 5-year bins. RESULTS: CSF-TP showed a marked age dependence, and males had significantly higher CSF-TP than females across all ages. CSF-TP results from the 3 different instruments and manufacturers showed small (approximately 0.04 g/L), but statistically significant, differences. CSF-TP showed weak, but again statistically significant, correlation with WBC and RBC but was independent of serum total protein and creatinine. CONCLUSIONS: The age dependence of CSF-TP supports that age-partitioned reference intervals will be more accurate than a single cutoff, particularly in patients with advancing age. PMID- 29021322 TI - Influence of Baseline Diastolic Blood Pressure on Effects of Intensive Compared With Standard Blood Pressure Control. AB - BACKGROUND: In individuals with a low diastolic blood pressure (DBP), the potential benefits or risks of intensive systolic blood pressure (SBP) lowering are unclear. METHODS: SPRINT (Systolic Blood Pressure Intervention Trial) was a randomized controlled trial that compared the effects of intensive (target <120 mm Hg) and standard (target <140 mm Hg) SBP control in 9361 older adults with high blood pressure at increased risk of cardiovascular disease. The primary outcome was a composite of cardiovascular disease events. All-cause death and incident chronic kidney disease were secondary outcomes. This post hoc analysis examined whether the effects of the SBP intervention differed by baseline DBP. RESULTS: Mean baseline SBP and DBP were 139.7+/-15.6 and 78.1+/-11.9 mm Hg, respectively. Regardless of the randomized treatment, baseline DBP had a U-shaped association with the hazard of the primary cardiovascular disease outcome. However, the effects of the intensive SBP intervention on the primary outcome were not influenced by baseline DBP level (P for interaction=0.83). The primary outcome hazard ratio for intensive versus standard treatment was 0.78 (95% confidence interval, 0.57-1.07) in the lowest DBP quintile (mean baseline DBP, 61+/-5 mm Hg) and 0.74 (95% confidence interval, 0.61-0.90) in the upper 4 DBP quintiles (mean baseline DBP, 82+/-9 mm Hg), with an interaction P value of 0.78. Results were similar for all-cause death and kidney events. CONCLUSIONS: Low baseline DBP was associated with increased risk of cardiovascular disease events, but there was no evidence that the benefit of the intensive SBP lowering differed by baseline DBP. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT01206062. PMID- 29021326 TI - Remnant Cholesterol and Myocardial Infarction in Normal Weight, Overweight, and Obese Individuals from the Copenhagen General Population Study. AB - BACKGROUND: We tested whether high remnant cholesterol is associated with high myocardial infarction risk, independent of whether an individual is normal weight, overweight, or obese. METHODS: A total of 106216 individuals from the Copenhagen General Population Study were followed for up to 11 years, during which 1565 experienced a myocardial infarction. Individuals were grouped by clinically meaningful remnant cholesterol concentrations of <0.5 mmol/L (19 mg/dL), 0.5 to 0.99 mmol/L (19-38 mg/dL), 1.0 to 1.49 mmol/L (39-58 mg/dL), and >=1.5 mmol/L (58 mg/dL), and by body mass index (BMI) of <18.5 kg/m2 (underweight), 18.5 to 24.9 kg/m2 (normal weight), 25 to 29.9 kg/m2 (overweight), and >=30 kg/m2 (obese). RESULTS: Median calculated remnant cholesterol was 0.40 mmol/L [interquartile range (IQR), 0.30-0.55 mmol/L] [15 mg/dL (12-21 mg/dL)] for underweight, 0.50 mmol/L (IQR, 0.37-0.71 mmol/L) [19 mg/dL (14-27 mg/dL)] for normal weight, 0.70 mmol/L (IQR, 0.49-1.00 mmol/L) [27 mg/dL (19-39 mg/dL)] for overweight, and 0.85 mmol/L (IQR, 0.61-1.20 mmol/L) [(33 mg/dL (24-46 mg/dL)] for obese individuals. On continuous scales, remnant cholesterol was positively correlated with BMI until reaching a plateau of approximately 1 mmol/L (39 mg/dL) at BMI >35 kg/m2. R2 from an unadjusted linear regression for the correlation between calculated remnant cholesterol and BMI was 12%. Stepwise higher remnant cholesterol was associated with stepwise higher myocardial infarction risk in a similar pattern for normal weight, overweight, and obese individuals. When compared with individuals with remnant cholesterol <0.5 mmol/L (19 mg/dL), individuals with remnant cholesterol >=1.5 mmol/L (58 mg/dL) had hazard ratios for myocardial infarction of 2.0 (95% CI, 1.3-3.2) for normal weight, 1.9 (95% CI, 1.4-2.6) for overweight, and 2.3 (95% CI, 1.4-3.5) for obese individuals. Directly measured remnant cholesterol increased 0.91 mmol/L (95% CI, 0.89-0.94 mmol/L) [35 mg/dL (34-36 mg/dL)] per 1 mmol/L (39 mg/dL) increase in calculated remnant cholesterol. CONCLUSIONS: Remnant cholesterol and BMI were positively correlated; however, high remnant cholesterol was associated with higher myocardial infarction risk across the examined BMI subcategories, indicating that remnant cholesterol is a risk factor for myocardial infarction independent of overweight and obesity. PMID- 29021327 TI - Gestational Diabetes Mellitus: Why the Controversy? PMID- 29021328 TI - Improving the Specificity of Cardiac Biomarkers-The Early Development of Cardiac Troponin I (cTnI) Assays. PMID- 29021323 TI - Pathologic Stimulus Determines Lineage Commitment of Cardiac C-kit+ Cells. AB - BACKGROUND: Although cardiac c-kit+ cells are being tested in clinical trials, the circumstances that determine lineage differentiation of c-kit+ cells in vivo are unknown. Recent findings suggest that endogenous cardiac c-kit+ cells rarely contribute cardiomyocytes to the adult heart. We assessed whether various pathological stimuli differentially affect the eventual cell fates of c-kit+ cells. METHODS: We used single-cell sequencing and genetic lineage tracing of c kit+ cells to determine whether various pathological stimuli would result in different fates of c-kit+ cells. RESULTS: Single-cell sequencing of cardiac CD45 c-kit+ cells showed innate heterogeneity, indicative of the existence of vascular and mesenchymal c-kit+ cells in normal hearts. Cardiac pressure overload resulted in a modest increase in c-kit-derived cardiomyocytes, with significant increases in the numbers of endothelial cells and fibroblasts. Doxorubicin-induced acute cardiotoxicity did not increase c-kit-derived endothelial cell fates but instead induced cardiomyocyte differentiation. Mechanistically, doxorubicin-induced DNA damage in c-kit+ cells resulted in expression of p53. Inhibition of p53 blocked cardiomyocyte differentiation in response to doxorubicin, whereas stabilization of p53 was sufficient to increase c-kit-derived cardiomyocyte differentiation. CONCLUSIONS: These results demonstrate that different pathological stimuli induce different cell fates of c-kit+ cells in vivo. Although the overall rate of cardiomyocyte formation from c-kit+ cells is still below clinically relevant levels, we show that p53 is central to the ability of c-kit+ cells to adopt cardiomyocyte fates, which could lead to the development of strategies to preferentially generate cardiomyocytes from c-kit+ cells. PMID- 29021325 TI - High-Density Lipoprotein Subclasses, Coronary Artery Disease, and Cardiovascular Mortality. AB - BACKGROUND: The inverse relationship between HDL cholesterol and cardiovascular mortality is weakened in coronary artery disease (CAD). We aimed to investigate the associations of HDL particle concentrations with cardiovascular mortality and the impact of CAD on these associations. We also sought to comparatively evaluate HDL cholesterol and HDL particle concentrations in predicting cardiovascular mortality. METHODS: Total and subclass HDL particle concentrations were measured by nuclear magnetic resonance spectroscopy in 2290 participants of the LUdwigshafen RIsk and Cardiovascular Health study referred for coronary angiography. The participants were prospectively followed over a median (interquartile range) duration of 10.0 (6.1-10.6) years. RESULTS: The mean (SD) age of the participants (1575 males, 715 females) was 62.9 (10.4) years; body mass index, 27.6 (4.1) kg/m2; HDL cholesterol, 39 (11) mg/dL [1 (0.29) mmol/L]; and total HDL particle concentration, 24.1 (5.8) MUmol/L. Of the participants, 434 died from cardiovascular diseases. In multivariate analyses, tertiles of total HDL particle concentrations were inversely related to cardiovascular mortality (hazard ratio for third vs first tertile = 0.55, P < 0.001). This association was primarily mediated by small HDL particles (P < 0.001). Adding total or small HDL particle concentrations rather than HDL cholesterol to multivariate prediction models improved performance metrics for cardiovascular mortality. The presence of CAD had no impact on the associations between HDL particle concentrations and cardiovascular mortality. CONCLUSIONS: High HDL particle concentration is consistently and independently of CAD associated with decreased cardiovascular mortality. Whether the inverse relationship between HDL particle concentration and cardiovascular mortality may be translated into novel therapies is under investigation. PMID- 29021329 TI - Human Chorionic Gonadotropin Assays for Testicular Tumors: Closing the Gap between Clinical and Laboratory Practice. AB - BACKGROUND: Clinical practice guidelines recommend the measurement of human chorionic gonadotropin (hCG) and/or hCGbeta in serum for management of testicular germ cell tumors (GCTs). These guidelines, however, disregard relevant biochemical information on hCG variants to be detected for oncological application. We set out to provide a critical review of the clinical evidence together with a characterization of the selectivity of currently marketed hCG immunoassays, identifying assays suitable for management of GCTs. CONTENT: Evidence sources in the available literature were critically appraised. Most instances of misdiagnosis and mismanagement of testicular GCTs have been associated with hCG results. According to the clinical evidence, 36% of patients with seminoma show an exclusive hCGbeta increase, and 71% of patients with nonseminomatous GCTs (NSGCTs) show an increase of intact hCG and/or hCG + hCGbeta, whereas the hCGbeta increase in NSGCTs is variable according to the tumor stage and histology. SUMMARY: hCG + hCGbeta assays that display an equimolar recognition of hCG and hCGbeta, or at least do not overtly underestimate hCGbeta, may be employed for management of testicular GCTs. Assays that underestimate hCGbeta are not recommended for oncological application. In addition to the hCG + hCGbeta assay in service, an additional assay with broader selectivity for other hCG variants should be considered when false-negative or false-positive results are suspected on the basis of clinical data. PMID- 29021330 TI - Response to: The need for incorporating emotional intelligence and mindfulness training in modern medical education. PMID- 29021331 TI - Correction. PMID- 29021332 TI - Statin Discontinuation, Reinitiation, and Persistence Patterns Among Medicare Beneficiaries After Myocardial Infarction: A Cohort Study. AB - BACKGROUND: Although the benefits of statins accrue over time, treatment discontinuation is common. Examining the patterns of statin discontinuation, reinitiation, and persistence after reinitiation among Medicare beneficiaries after hospital discharge for a myocardial infarction may help increase statin use in high-risk patients. METHODS AND RESULTS: Medicare beneficiaries with a statin fill claim within 30 days after hospital discharge for myocardial infarction in 2007 to 2012 (n=158 795) were followed for 182 days post-discharge to identify discontinuation, defined as 60 continuous days without statins available. Reinitiation, defined by a statin fill, was identified in the 365 days post discontinuation. High persistence was defined as proportion of days covered >=80% with >=1 day of statin supply 182 days after reinitiation. Follow-up ended on December 31, 2014. In the 182 days after myocardial infarction hospital discharge, 15.4% of beneficiaries discontinued statins. Of this group, 53.7% reinitiated statins. On reinitiation, 27.1% changed statin type, 6.9% up-titrated intensity, 14.4% down-titrated intensity, and 66.0% had the same statin and intensity. In the 182 days after reinitiation, 45.8% had high persistence. Moderate- and high- versus low-intensity statins were associated with a lower risk for statin discontinuation (moderate intensity: relative risk [RR], 0.93; 95% confidence interval [CI], 0.89-0.96; high-intensity: RR, 0.95; 95% CI, 0.91 0.99). High persistence was less common after reinitiating high- versus low intensity statins (RR, 0.80; 95% CI, 0.75-0.86), but no association was present for those reinitiating a moderate- versus low-intensity statin (RR, 0.95; 95% CI, 0.90-1.01). Down-titrating versus reinitiating the same statin intensity (RR, 1.10; 95% CI, 1.05-1.16) and reinitiating a different versus the same statin (RR, 1.10; 95% CI, 1.06-1.14) were associated with high persistence after treatment reinitiation. CONCLUSIONS: Although many people who discontinue a statin reinitiate treatment, statin persistence after reinitiation was low. Reinitiating therapy with moderate-intensity statins, down-titration, and using a different statin may promote persistence. PMID- 29021334 TI - Design and Initial Results of the Minneapolis Heart Institute TeleHeart Program. PMID- 29021333 TI - Is Risk-Standardized In-Hospital Stroke Mortality an Adequate Proxy for Risk Standardized 30-Day Stroke Mortality Data? Findings From Get With The Guidelines Stroke. AB - BACKGROUND: Hospital profiling is typically undertaken using risk-standardized 30 day mortality, but obtaining these data for hospitals can be difficult. We sought to determine whether risk-standardized in-hospital mortality could serve as an adequate proxy for risk-standardized 30-day mortality data for the purposes of identifying outlier hospitals. METHODS AND RESULTS: Acute ischemic stroke cases entered into GWTG (Get With The Guidelines)-Stroke between 2003 and 2013 were linked to fee-for-service Medicare files to obtain 30-day mortality. Risk standardized mortality rates (RSMR) for in-hospital and 30-day mortality were generated using previously developed risk score models, and the proportion of hospitals classified as statistical outliers compared. We also assessed the impact of using the combined outcome of in-hospital mortality or discharge to hospice. A total of 535 332 ischemic stroke patients from 1494 GWTG-Stroke hospitals were included; mean age was 80 years, 59% female, and 19% nonwhite. At the hospital level, mean in-hospital RSMRs and 30-day RSMRs were 6.0% and 14.6%, respectively, but the correlation between the 2 was modest (r=0.53). Overall agreement in the designation of outlier hospitals between in-hospital and 30-day RSMRs was 78%, but chance-corrected agreement was only fair (kappa=0.29). However, when using the combined outcome of in-hospital mortality or discharge to hospice (risk-standardized mean =11.8%), the correlation with 30-day RSMR was much stronger (r= 0.83) and outlier agreement improved substantially (kappa=0.60). CONCLUSIONS: When used to identify outlier hospitals with high or low mortality, the agreement between risk-standardized in-hospital mortality and 30-day mortality was modest. However, the combined outcome of in-hospital mortality or discharge to hospice showed much better agreement with 30-day mortality. This composite outcome could serve as a proxy for 30-day mortality when used to identify low- or high-performing hospitals. PMID- 29021335 TI - Nonadherence in the Learning Healthcare System: Avoiding a Mountain by Seeing the Bumps. PMID- 29021336 TI - Pooled Analysis of Multiple Crossover Trials To Optimize Individual Therapy Response to Renin-Angiotensin-Aldosterone System Intervention. AB - BACKGROUND AND OBJECTIVES: In the treatment of CKD, individual patients show a wide variation in their response to many drugs, including renin-angiotensin aldosterone system inhibitors (RAASi). To investigate whether therapy resistance to RAASi can be overcome by uptitrating the dose of drug, changing the mode of intervention (with drugs from similar or different classes), or lowering dietary sodium intake, we meta-analyzed individual responses to different modes of interventions. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Randomized crossover trials were analyzed to assess correlation of individual responses to RAASi and nonsteroidal anti-inflammatory drugs (NSAIDs; n=395 patients). Included studies compared the antialbuminuric effect of uptitrating the dose of RAASi (n=10 studies) and NSAIDs (n=1), changing within the same class of RAASi (e.g., angiotensin-converting enzyme inhibition to angiotensin receptor blockers; n=5) or NSAIDs (n=1), changing from RAASi to NSAIDs (n=2), and changing from high to low sodium intake (n=5). A two-stage meta-analysis was conducted: Deming regression was conducted in each study to assess correlations in response, and individual study results were then meta-analyzed. RESULTS: The albuminuria response to one dose of RAASi or NSAIDs positively correlated with the response to a higher dose of the same drug (r=0.72; 95% confidence interval [95% CI], 0.66 to 0.78), changes within the same class of RAASi or NSAIDs (r=0.54; 95% CI, 0.35 to 0.68), changes between RAASi and NSAIDs (r=0.44; 95% CI, 0.16 to 0.66), and changes from high to moderately low salt intake (r=0.36; 95% CI, 0.22 to 0.48). Results were similar when the individual systolic BP and potassium responses were analyzed, and were consistent in patients with and without diabetes. CONCLUSIONS: Individuals who show a poor response to one dose or type of RAASi also show a poor response to higher doses, other types of RAASi or NSAIDs, or a reduction in dietary salt intake. Whether other drugs or drug combinations targeting pathways beyond the renin-angiotensin-aldosterone system and prostaglandins would improve the individual poor response requires further study. PMID- 29021337 TI - Involvement of the exomer complex in the polarized transport of Ena1 required for Saccharomyces cerevisiae survival against toxic cations. AB - Exomer is an adaptor complex required for the direct transport of a selected number of cargoes from the trans-Golgi network (TGN) to the plasma membrane in Saccharomyces cerevisiae However, exomer mutants are highly sensitive to increased concentrations of alkali metal cations, a situation that remains unexplained by the lack of transport of any known cargoes. Here we identify several HAL genes that act as multicopy suppressors of this sensitivity and are connected to the reduced function of the sodium ATPase Ena1. Furthermore, we find that Ena1 is dependent on exomer function. Even though Ena1 can reach the plasma membrane independently of exomer, polarized delivery of Ena1 to the bud requires functional exomer. Moreover, exomer is required for full induction of Ena1 expression after cationic stress by facilitating the plasma membrane recruitment of the molecular machinery involved in Rim101 processing and activation of the RIM101 pathway in response to stress. Both the defective localization and the reduced levels of Ena1 contribute to the sensitivity of exomer mutants to alkali metal cations. Our work thus expands the spectrum of exomer-dependent proteins and provides a link to a more general role of exomer in TGN organization. PMID- 29021338 TI - A Daple-Akt feed-forward loop enhances noncanonical Wnt signals by compartmentalizing beta-catenin. AB - Cellular proliferation is antagonistically regulated by canonical and noncanonical Wnt signals; their dysbalance triggers cancers. We previously showed that a multimodular signal transducer, Daple, enhances PI3-K->Akt signals within the noncanonical Wnt signaling pathway and antagonistically inhibits canonical Wnt responses. Here we demonstrate that the PI3-K->Akt pathway serves as a positive feedback loop that further enhances noncanonical Wnt signals by compartmentalizing beta-catenin. By phosphorylating the phosphoinositide- (PI) binding domain of Daple, Akt abolishes Daple's ability to bind PI3-P-enriched endosomes that engage dynein motor complex for long-distance trafficking of beta catenin/E-cadherin complexes to pericentriolar recycling endosomes (PCREs). Phosphorylation compartmentalizes Daple/beta-catenin/E-cadherin complexes to cell cell contact sites, enhances noncanonical Wnt signals, and thereby suppresses colony growth. Dephosphorylation compartmentalizes beta-catenin on PCREs, a specialized compartment for prolonged unopposed canonical Wnt signaling, and enhances colony growth. Cancer-associated Daple mutants that are insensitive to Akt mimic a constitutively dephosphorylated state. This work not only identifies Daple as a platform for cross-talk between Akt and the noncanonical Wnt pathway but also reveals the impact of such cross-talk on tumor cell phenotypes that are critical for cancer initiation and progression. PMID- 29021340 TI - Down-regulation of the Wnt/beta-catenin signaling pathway by Cacnb4. AB - The beta4 isoform of the beta-subunits of voltage-gated calcium channel regulates cell proliferation and cell cycle progression. Herein we show that coexpression of the beta4-subunit with actors of the canonical Wnt/beta-catenin signaling pathway in a hepatoma cell line inhibits Wnt-responsive gene transcription and decreases cell division, in agreement with the role of the Wnt pathway in cell proliferation. beta4-subunit-mediated inhibition of Wnt signaling is observed in the presence of LiCl, an inhibitor of glycogen synthase kinase (GSK3) that promotes beta-catenin translocation to the nucleus. Expression of beta4-subunit mutants that lost the ability to translocate to the nucleus has no effect on Wnt signaling, suggesting that beta4-subunit inhibition of Wnt signaling occurs downstream from GSK3 and requires targeting of beta4-subunit to the nucleus. beta4-subunit coimmunoprecipitates with the TCF4 transcription factor and overexpression of TCF4 reverses the effect of beta4-subunit on the Wnt pathway. We thus propose that the interaction of nuclear beta4-subunit with TCF4 prevents beta-catenin binding to TCF4 and leads to the inhibition of the Wnt-responsive gene transcription. Thereby, our results show that beta4-subunit is a TCF4 repressor and therefore appears as an interesting candidate for the regulation of this pathway in neurons where beta4-subunit is specifically expressed. PMID- 29021339 TI - Phosphorylation regulates connexin43/ZO-1 binding and release, an important step in gap junction turnover. AB - To investigate whether connexin phosphorylation regulates the known role of zonula occludens-1 protein (ZO-1) in gap junction (GJ) function, we generated and analyzed a series of phosphomimetic and phosphorylation-dead mutants by mutating known conserved regulatory serine (S) residues 255, 279/282, 365, 368, and 373 located in the C-terminal domain of connexin43 (Cx43) into glutamic acid (E) or alanine (A) residues. All connexin mutants were translated into stable, full length proteins and assembled into GJs when expressed in HeLa or Madin-Darby canine kidney epithelial cells. However, mutants with S residues exchanged at positions 365, 368, and 373 exhibited a significantly altered ZO-1 interaction profile, while mutants with S residues exchanged at 255 and 279/282 did not. Unlike wild-type Cx43, in which ZO-1 binding is restricted to the periphery of GJ plaques, S365A, S365E, S368A, S368E, and S373A mutants bound ZO-1 throughout the GJ plaques, while the S373E mutant did not bind ZO-1 at all. Inability to disengage from ZO-1 correlated with increased GJ plaque size and increased connexin protein half-life, while maintaining GJ channels in an open, functional state. Quantitative clathrin-binding analyses revealed no significant alterations in clathrin-binding efficiency, suggesting that the inability to disengage from ZO-1 prevented maturation of functional into nonfunctional/endocytic channels, rather than ZO-1 interfering with GJ endocytosis directly. Collectively, our results indicate that ZO-1 binding regulates channel accrual, while disengagement from ZO-1 is critical for GJ channel closure and transitioning GJ channels for endocytosis. Intriguingly, these transitional ZO-1 binding/release and channel aging steps are mediated by a series of hierarchical phosphorylation/dephosphorylation events at S373, S365, and S368, well-known Cx43 Akt, protein kinase A, and protein kinase C phosphorylation sites located in the vicinity of the ZO-1 binding site. PMID- 29021342 TI - Digging deep into Golgi phenotypic diversity with unsupervised machine learning. AB - The synthesis of glycans and the sorting of proteins are critical functions of the Golgi apparatus and depend on its highly complex and compartmentalized architecture. High-content image analysis coupled to RNA interference screening offers opportunities to explore this organelle organization and the gene network underlying it. To date, image-based Golgi screens have based on a single parameter or supervised analysis with predefined Golgi structural classes. Here, we report the use of multiparametric data extracted from a single marker and a computational unsupervised analysis framework to explore Golgi phenotypic diversity more extensively. In contrast with the three visually definable phenotypes, our framework reproducibly identified 10 Golgi phenotypes. They were used to quantify and stratify phenotypic similarities among genetic perturbations. The derived phenotypic network partially overlaps previously reported protein-protein interactions as well as suggesting novel functional interactions. Our workflow suggests the existence of multiple stable Golgi organizational states and provides a proof of concept for the classification of drugs and genes using fine-grained phenotypic information. PMID- 29021341 TI - Acquisition of cell migration defines NK cell differentiation from hematopoietic stem cell precursors. AB - Human natural killer (NK) cells are generated from CD34+ precursors and can be differentiated in vitro by coculture with developmentally supportive stromal cells. We have previously described the acquisition of cell migration as a feature of NK cell terminal maturation in this system. Here we perform continuous long-term imaging and tracking of NK cell progenitors undergoing in vitro differentiation. We demonstrate that NK cell precursors can be tracked over long time periods on the order of weeks by utilizing phase-contrast microscopy and show that these cells acquire increasing motility as they mature. Additionally, we observe that NK cells display a more heterogeneous range of migratory behaviors at later stages of development, with the acquisition of complex modes of migration that are associated with terminal maturation. Together these data demonstrate previously unknown migratory behaviors of innate lymphocytes undergoing lineage differentiation revealed by long-term imaging and analysis workflows. PMID- 29021343 TI - Tubulin isoform composition tunes microtubule dynamics. AB - Microtubules polymerize and depolymerize stochastically, a behavior essential for cell division, motility, and differentiation. While many studies advanced our understanding of how microtubule-associated proteins tune microtubule dynamics in trans, we have yet to understand how tubulin genetic diversity regulates microtubule functions. The majority of in vitro dynamics studies are performed with tubulin purified from brain tissue. This preparation is not representative of tubulin found in many cell types. Here we report the 4.2-A cryo-electron microscopy (cryo-EM) structure and in vitro dynamics parameters of alpha1B/betaI+betaIVb microtubules assembled from tubulin purified from a human embryonic kidney cell line with isoform composition characteristic of fibroblasts and many immortalized cell lines. We find that these microtubules grow faster and transition to depolymerization less frequently compared with brain microtubules. Cryo-EM reveals that the dynamic ends of alpha1B/betaI+betaIVb microtubules are less tapered and that these tubulin heterodimers display lower curvatures. Interestingly, analysis of EB1 distributions at dynamic ends suggests no differences in GTP cap sizes. Last, we show that the addition of recombinant alpha1A/betaIII tubulin, a neuronal isotype overexpressed in many tumors, proportionally tunes the dynamics of alpha1B/betaI+betaIVb microtubules. Our study is an important step toward understanding how tubulin isoform composition tunes microtubule dynamics. PMID- 29021346 TI - The HECT E3 ubiquitin ligase NEDD4 interacts with and ubiquitylates SQSTM1 for inclusion body autophagy. AB - Our previous studies have shown that the HECT E3 ubiquitin ligase NEDD4 interacts with LC3 and is required for starvation and rapamycin-induced activation of autophagy. Here, we report that NEDD4 directly binds to SQSTM1 via its HECT domain and polyubiquitylates SQSTM1. This ubiquitylation is through K63 conjugation and is not involved in proteasomal degradation. Mutational analysis indicates that NEDD4 interacts with and ubiquitylates the PB1 domain of SQSTM1. Depletion of NEDD4 or overexpression of the ligase-defective mutant of NEDD4 induced accumulation of aberrant enlarged SQSTM1-positive inclusion bodies that are co-localized with the endoplasmic reticulum (ER) marker CANX, suggesting that the ubiquitylation functions in the SQSTM1-mediated biogenic process in inclusion body autophagosomes. Taken together, our studies show that NEDD4 is an autophagic E3 ubiquitin ligase that ubiquitylates SQSTM1, facilitating SQSTM1-mediated inclusion body autophagy. PMID- 29021347 TI - Multiple pathways facilitate the biogenesis of mammalian tail-anchored proteins. AB - Tail-anchored (TA) proteins are transmembrane proteins with a single C-terminal transmembrane domain, which functions as both their subcellular targeting signal and membrane anchor. We show that knockout of TRC40 in cultured human cells has a relatively minor effect on endogenous TA proteins, despite their apparent reliance on this pathway in vitro These findings support recent evidence that the canonical TRC40 pathway is not essential for TA protein biogenesis in vivo We therefore investigated the possibility that other ER-targeting routes can complement the TRC40 pathway and identified roles for both the SRP pathway and the recently described mammalian SND pathway in TA protein biogenesis. We conclude that, although TRC40 normally plays an important role in TA protein biogenesis, it is not essential, and speculate that alternative pathways for TA protein biogenesis, including those identified in this study, contribute to the redundancy of the TRC40 pathway. PMID- 29021345 TI - Direct evidence of amyloid precursor-like protein 1 trans interactions in cell cell adhesion platforms investigated via fluorescence fluctuation spectroscopy. AB - The amyloid precursor-like protein 1 (APLP1) is a type I transmembrane protein that plays a role in synaptic adhesion and synaptogenesis. Past investigations indicated that APLP1 is involved in the formation of protein-protein complexes that bridge the junctions between neighboring cells. Nevertheless, APLP1-APLP1 trans interactions have never been directly observed in higher eukaryotic cells. Here, we investigated APLP1 interactions and dynamics directly in living human embryonic kidney cells using fluorescence fluctuation spectroscopy techniques, namely cross-correlation scanning fluorescence correlation spectroscopy and number and brightness analysis. Our results show that APLP1 forms homotypic trans complexes at cell-cell contacts. In the presence of zinc ions, the protein forms macroscopic clusters, exhibiting an even higher degree of trans binding and strongly reduced dynamics. Further evidence from giant plasma membrane vesicles suggests that the presence of an intact cortical cytoskeleton is required for zinc-induced cis multimerization. Subsequently, large adhesion platforms bridging interacting cells are formed through APLP1-APLP1 trans interactions. Taken together, our results provide direct evidence that APLP1 functions as a neuronal zinc-dependent adhesion protein and allow a more detailed understanding of the molecular mechanisms driving the formation of APLP1 adhesion platforms. PMID- 29021350 TI - Is the Way to Someone's Heart Through Their Stomach? The Cardiorenal Paradox of Incretin-Based Hypoglycemic Drugs in Heart Failure. PMID- 29021348 TI - Early Right Ventricular Assist Device Use in Patients Undergoing Continuous-Flow Left Ventricular Assist Device Implantation: Incidence and Risk Factors From the Interagency Registry for Mechanically Assisted Circulatory Support. AB - BACKGROUND: To investigate preimplant risk factors associated with early right ventricular assist device (RVAD) use in patients undergoing continuous-flow left ventricular assist device (LVAD) surgery. METHODS AND RESULTS: Patients in the Interagency Registry for Mechanically Assisted Circulatory Support who underwent primary continuous-flow-LVAD surgery were examined for concurrent or subsequent RVAD implantation within 14 days of LVAD. Risk factors for RVAD implantation and the combined end point of RVAD or death within 14 days of LVAD were assessed with stepwise logistic regression. We compared survival between patients with and without RVAD using Kaplan-Meier method and Cox proportional hazards modeling. Of 9976 patients undergoing continuous-flow-LVAD implantation, 386 patients (3.9%) required an RVAD within 14 days of LVAD surgery. Preimplant characteristics associated with RVAD use included interagency registry for mechanically assisted circulatory support patient profiles 1 and 2, the need for preoperative extracorporeal membrane oxygenation or renal replacement therapy, severe preimplant tricuspid regurgitation, history of cardiac surgery, and concomitant procedures other than tricuspid valve repair at the time of LVAD. Hemodynamic determinants included elevated right atrial pressure, reduced pulmonary artery pulse pressure, and reduced stroke volume. The final model demonstrated good performance for both RVAD implant (area under the curve, 0.78) and the combined end point of RVAD or death within 14 days (area under the curve, 0.73). Compared with patients receiving an isolated LVAD, patients requiring RVAD had decreased 1 and 6-month survival: 78.1% versus 95.8% and 63.6% versus 87.9%, respectively (P<0.0001 for both). CONCLUSIONS: The need for RVAD implantation after LVAD is associated with indices of global illness severity, markers of end-organ dysfunction, and profiles of hemodynamic instability. PMID- 29021344 TI - A microtubule polymerase cooperates with the kinesin-6 motor and a microtubule cross-linker to promote bipolar spindle assembly in the absence of kinesin-5 and kinesin-14 in fission yeast. AB - Accurate chromosome segregation relies on the bipolar mitotic spindle. In many eukaryotes, spindle formation is driven by the plus-end-directed motor kinesin-5 that generates outward force to establish spindle bipolarity. Its inhibition leads to the emergence of monopolar spindles with mitotic arrest. Intriguingly, simultaneous inactivation of the minus-end-directed motor kinesin-14 restores spindle bipolarity in many systems. Here we show that in fission yeast, three independent pathways contribute to spindle bipolarity in the absence of kinesin 5/Cut7 and kinesin-14/Pkl1. One is kinesin-6/Klp9 that engages with spindle elongation once short bipolar spindles assemble. Klp9 also ensures the medial positioning of anaphase spindles to prevent unequal chromosome segregation. Another is the Alp7/TACC-Alp14/TOG microtubule polymerase complex. Temperature sensitive alp7cut7pkl1 mutants are arrested with either monopolar or very short spindles. Forced targeting of Alp14 to the spindle pole body is sufficient to render alp7cut7pkl1 triply deleted cells viable and promote spindle assembly, indicating that Alp14-mediated microtubule polymerization from the nuclear face of the spindle pole body could generate outward force in place of Cut7 during early mitosis. The third pathway involves the Ase1/PRC1 microtubule cross-linker that stabilizes antiparallel microtubules. Our study, therefore, unveils multifaceted interplay among kinesin-dependent and -independent pathways leading to mitotic bipolar spindle assembly. PMID- 29021352 TI - Successful motor mapping with transcranial magnetic stimulation in an infant: A case report. PMID- 29021351 TI - Metabolic Epoxidation Is a Critical Step for the Development of Benzbromarone Induced Hepatotoxicity. AB - Benzbromarone (BBR) is effective in the treatment of gout; however, clinical findings have shown it can also cause fatal hepatic failure. Our early studies demonstrated that CYP3A catalyzed the biotransformation of BBR to epoxide intermediate(s) that reacted with sulfur nucleophiles of protein to form protein covalent binding both in vitro and in vivo. The present study attempted to define the correlation between metabolic epoxidation and hepatotoxicity of BBR by manipulating the structure of BBR. We rationally designed and synthesized three halogenated BBR derivatives, fluorinated BBR (6-F-BBR), chlorinated BBR (6-Cl BBR), and brominated BBR (6-Br-BBR), to decrease the potential for cytochrome P450-mediated metabolic activation. Both in vitro and in vivo uricosuric activity assays showed that 6-F-BBR achieved favorable uricosuric effect, while 6-Cl-BBR and 6-Br-BBR showed weak uricosuric efficacy. Additionally, 6-F-BBR elicited much lower hepatotoxicity in mice. Fluorination of BBR offered advantage to metabolic stability in liver microsomes, almost completely blocked the formation of epoxide metabolite(s) and protein covalent binding, and attenuated hepatic and plasma glutathione depletion. Moreover, the structural manipulation did not alter the efficacy of BBR. This work provided solid evidence that the formation of the epoxide(s) is a key step in the development of BBR-induced hepatotoxicity. PMID- 29021354 TI - TRMT5 mutations are associated with features of complex hereditary spastic paraparesis. PMID- 29021349 TI - Activation of Autophagy Ameliorates Cardiomyopathy in Mybpc3-Targeted Knockin Mice. AB - BACKGROUND: Alterations in autophagy have been reported in hypertrophic cardiomyopathy (HCM) caused by Danon disease, Vici syndrome, or LEOPARD syndrome, but not in HCM caused by mutations in genes encoding sarcomeric proteins, which account for most of HCM cases. MYBPC3, encoding cMyBP-C (cardiac myosin-binding protein C), is the most frequently mutated HCM gene. METHODS AND RESULTS: We evaluated autophagy in patients with HCM carrying MYBPC3 mutations and in a Mybpc3-targeted knockin HCM mouse model, as well as the effect of autophagy modulators on the development of cardiomyopathy in knockin mice. Microtubule associated protein 1 light chain 3 (LC3)-II protein levels were higher in HCM septal myectomies than in nonfailing control hearts and in 60-week-old knockin than in wild-type mouse hearts. In contrast to wild-type, autophagic flux was blunted and associated with accumulation of residual bodies and glycogen in hearts of 60-week-old knockin mice. We found that Akt-mTORC1 (mammalian target of rapamycin complex 1) signaling was increased, and treatment with 2.24 mg/kg.d rapamycin or 40% caloric restriction for 9 weeks partially rescued cardiomyopathy or heart failure and restored autophagic flux in knockin mice. CONCLUSIONS: Altogether, we found that (1) autophagy is altered in patients with HCM carrying MYBPC3 mutations, (2) autophagy is impaired in Mybpc3-targeted knockin mice, and (3) activation of autophagy ameliorated the cardiac disease phenotype in this mouse model. We propose that activation of autophagy might be an attractive option alone or in combination with another therapy to rescue HCM caused by MYBPC3 mutations. PMID- 29021353 TI - Longitudinal decline of driving safety in Parkinson disease. AB - OBJECTIVE: To longitudinally assess and predict on-road driving safety in Parkinson disease (PD). METHODS: Drivers with PD (n = 67) and healthy controls (n = 110) drove a standardized route in an instrumented vehicle and were invited to return 2 years later. A professional driving expert reviewed drive data and videos to score safety errors. RESULTS: At baseline, drivers with PD performed worse on visual, cognitive, and motor tests, and committed more road safety errors compared to controls (median PD 38.0 vs controls 30.5; p < 0.001). A smaller proportion of drivers with PD returned for repeat testing (42.8% vs 62.7%; p < 0.01). At baseline, returnees with PD made fewer errors than nonreturnees with PD (median 34.5 vs 40.0; p < 0.05) and performed similar to control returnees (median 33). Baseline global cognitive performance of returnees with PD was better than that of nonreturnees with PD, but worse than for control returnees (p < 0.05). After 2 years, returnees with PD showed greater cognitive decline and larger increase in error counts than control returnees (median increase PD 13.5 vs controls 3.0; p < 0.001). Driving error count increase in the returnees with PD was predicted by greater error count and worse visual acuity at baseline, and by greater interval worsening of global cognition, Unified Parkinson's Disease Rating Scale activities of daily living score, executive functions, visual processing speed, and attention. CONCLUSIONS: Despite drop out of the more impaired drivers within the PD cohort, returning drivers with PD, who drove like controls without PD at baseline, showed many more driving safety errors than controls after 2 years. Driving decline in PD was predicted by baseline driving performance and deterioration of cognitive, visual, and functional abnormalities on follow-up. PMID- 29021355 TI - Population-based study of home-time by stroke type and correlation with modified Rankin score. AB - OBJECTIVE: To describe home-time, stratified by stroke type, in a complete population and to determine its correlation with modified Rankin Scale (mRS) scores. METHODS: We used linked administrative data to derive home-time in all patients admitted for a cerebrovascular event in Alberta, Canada, between 2012 and 2016. Home-time is the number of days spent outside a health institution in the first 90 days after index hospitalization. We used negative binomial regression, adjusted for age, sex, Charlson comorbidity index, and hospital location, to determine the association between home-time and stroke type. In 552 patients enrolled in 4 acute ischemic stroke clinical trials, we used multivariable ordinal logistic regression analysis to determine the association between home-time and mRS score at 90 days. RESULTS: Among 15,644 patients (n = 10,428 with ischemic stroke, n = 1,415 with intracerebral hemorrhage, n = 760 with subarachnoid hemorrhage, n = 3,041 with TIA), patients with TIA have the longest home-time, almost triple the number of days at home compared to patients with intracerebral hemorrhage (incidence rate ratio 2.85, 95% confidence interval [CI] 2.58-3.15). Among clinical trial ischemic stroke patients, longer home-time was associated with a lower mRS score at 90 days (adjusted common odds ratio 1.04, 95% CI 1.04-1.05). CONCLUSIONS: We showed that home-time is an objective and graded indicator that is correlated with disability after stroke. It is obtainable from administrative data, applicable to different stroke types, and a valuable outcome indicator in population-based health services research. PMID- 29021357 TI - Radiographic and symptomatic brain ischemia in CEA and CAS: A systematic review and meta-analysis. AB - OBJECTIVE: In a systematic review, we compared ratio of new periprocedural radiographic brain ischemia (RBI) to the number of strokes and TIAs among patients undergoing carotid endarterectomy (CEA) and carotid artery stenting (CAS). METHODS: We searched 5 databases for entries related to brain ischemia in CEA or CAS from inception through September 2015. We included articles with CEA or CAS and systematic performance of preprocedural and postprocedural brain MRI and reporting of RBI and stroke incidence. We calculated a symptomatic risk ratio of number of strokes and TIAs to RBI. Random effects models were used. RESULTS: Fifty-nine studies (5,431 participants) met the inclusion criteria. There were 22 cohorts in CEA, 34 in CAS with distal protection, 8 in CAS with proximal protection, 9 in CAS without protection, and 9 in CAS with unspecified devices. Overall, 30.7% (95% confidence interval [CI] 26.6%-34.7%) had RBI, while 3.2% (95% CI 2.6%-3.8%) had clinical strokes or TIAs, with a stroke and TIA to RBI weighted ratio of 0.18 (95% CI 0.15-0.22). CEA had lower incidence of RBI compared to CAS (13.0% vs 37.4%) and also lower number of strokes and TIAs (1.8% vs 4.1%). The stroke and TIA to RBI ratio did not differ across 5 different types of carotid interventions (p = 0.58). CONCLUSIONS: One in 5 persons with periprocedural radiographic brain ischemia during CEA and CAS had strokes and TIAs. The stable ratio of stroke and TIA to radiographic ischemia suggests that MRI ischemia could serve as a surrogate measure of periprocedural risk. PMID- 29021358 TI - Big data trends in stroke epidemiology in the United States: But are they good data? PMID- 29021356 TI - Volumetric brain changes in migraineurs from the general population. AB - OBJECTIVE: To assess volumetric brain changes in migraineurs from the general population compared with controls. METHODS: Structural brain changes in migraineurs from the general population-based MRI Cerebral Abnormalities in Migraine, an Epidemiologic Risk Analysis (CAMERA)-2 observational cohort study were assessed by state-of-the-art voxel-based morphometry. T1-weighted MRIs of 84 migraineurs (52 with aura, 32 without aura) and 35 headache-free controls were evaluated. Regional volumes were compared voxelwise, corrected for age, sex, and total intracranial volume, with region-of-interest and whole-brain analyses. RESULTS: In region-of-interest analyses, migraineurs showed decreased gray matter volume in the visual areas V3 and V5 of the right occipital cortex compared to controls (p < 0.05, familywise error correction). Post hoc analyses revealed that similar changes were present regardless of migraine aura status, disease activity (>1 year attack-free [inactive] vs >=1 attack within the last year [active] and attack frequency [<=1 (low) vs >=1 attack per month [high]). In exploratory whole brain analyses (p < 0.001, uncorrected for multiple comparisons), we identified additional structural differences in migraineurs in other cortical and subcortical areas, including white matter tracts, that are particularly involved in visual processing. CONCLUSIONS: Migraineurs from the general population showed small volumetric brain changes, mainly in cortical areas involved in visual motion processing, compared to controls. The presence of morphologic changes regardless of the presence of migraine aura or disease activity suggests that migraines with and without aura share common pathophysiologic pathways and suggests that these changes are (partially) irreversible or might have been present throughout life. PMID- 29021360 TI - Physiology in Perspective: Physiology Provides Insight into Health. PMID- 29021359 TI - Increasing prevalence of vascular risk factors in patients with stroke: A call to action. AB - OBJECTIVE: To evaluate trends in prevalence of cardiovascular risk factors (hypertension, diabetes, dyslipidemia, smoking, and drug abuse) and cardiovascular diseases (carotid stenosis, chronic renal failure [CRF], and coronary artery disease [CAD]) in acute ischemic stroke (AIS) in the United States. METHODS: We used the 2004-2014 National Inpatient Sample to compute weighted prevalence of each risk factor in hospitalized patients with AIS and used joinpoint regression to evaluate change in prevalence over time. RESULTS: Across the 2004-2014 period, 92.5% of patients with AIS had >=1 risk factor. Overall age- and sex-adjusted prevalence of hypertension, diabetes, dyslipidemia, smoking, and drug abuse were 79%, 34%, 47%, 15%, and 2%, respectively, while those of carotid stenosis, CRF, and CAD were 13%, 12%, and 27%, respectively. Risk factor prevalence varied by age (hypertension: 44% in 18-39 years vs 82% in 60-79 years), race (diabetes: Hispanic 49% vs white 30%), and sex (drug abuse: men 3% vs women 1.4%). Using joinpoint regression, prevalence of hypertension increased annually by 1.4%, diabetes by 2%, dyslipidemia by 7%, smoking by 5%, and drug abuse by 7%. Prevalence of CRF, carotid stenosis, and CAD increased annually by 13%, 6%, and 1%, respectively. Proportion of patients with multiple risk factors also increased over time. CONCLUSIONS: Despite numerous guidelines and prevention initiatives, prevalence of hypertension, diabetes, dyslipidemia, smoking, and drug abuse in AIS increased across the 2004-2014 period. Proportion of patients with carotid stenosis, CRF, and multiple risk factors also increased. Enhanced risk factor modification strategies and implementation of evidence-based recommendations are needed for optimal stroke prevention. PMID- 29021362 TI - Chloride Channels Take Center Stage in Acute Regulation of Excitability in Skeletal Muscle: Implications for Fatigue. AB - Initiation and propagation of action potentials in muscle fibers is a key element in the transmission of activating motor input from the central nervous system to their contractile apparatus, and maintenance of excitability is therefore paramount for their endurance during work. Here, we review current knowledge about the acute regulation of ClC-1 channels in active muscles and its importance for muscle excitability, function, and fatigue. PMID- 29021363 TI - Novel and Unexpected Functions of SGLTs. AB - It has been 30 years since the intestinal sodium glucose cotransporter SGLT1 was cloned, and, in the intervening years, there have been many advances that have influenced physiology and medicine. Among the first was that SGLT1 is the founding member of the human gene family SLC5, containing 11 diverse transporters and a glucose sensor. Equally surprising was that SGLTs are members of a structural family of cotransporters and exchangers in different gene families. This led to the conclusion that these proteins operate by a mechanism where transport involves the opening and closing of external and internal gates. The mechanism is shared by a wide variety of transporters in different structural families, e.g., the human facilitated glucose transporters (SLC2) in the huge major facilitator superfamily (MFS). Not surprising is the finding that mutations in Sglt genes cause the rare diseases glucose-galactose-malabsorption (GGM) and familial renal glucosuria (FRG). However, it was not envisaged that SGLT inhibitors would be used to treat diabetes mellitus, and these drugs may be able to treat cancer. Finally, in 2017, we have just learned that SGLT1 may be required to resist infection and to avoid recurrent pregnancy loss. PMID- 29021361 TI - Running Changes the Brain: the Long and the Short of It. AB - Exercise is a simple intervention that profoundly benefits cognition. In rodents, running increases neurogenesis in the hippocampus, a brain area important for memory. We describe the dynamic changes in new neuron number and afferent connections throughout their maturation. We highlight the effects of exercise on the neurotransmitter systems involved, with a focus on the role of glutamate and acetylcholine in the initial development of new neurons in the adult brain. PMID- 29021365 TI - Lactic Acid: No Longer an Inert and End-Product of Glycolysis. AB - For decades, lactic acid has been considered a dead-end product of glycolysis. Research in the last 20+ years has shown otherwise. Through its transporters (MCTs) and receptor (GPR81), lactic acid plays a key role in multiple cellular processes, including energy regulation, immune tolerance, memory formation, wound healing, ischemic tissue injury, and cancer growth and metastasis. We summarize key findings of lactic acid signaling, functions, and many remaining questions. PMID- 29021364 TI - Lymphatic Endothelial Cell Plasticity in Development and Disease. AB - The lymphatic vasculature is crucial for maintaining tissue-fluid homeostasis, providing immune surveillance and mediating lipid absorption. The lymphatic vasculature is tightly associated with the blood vasculature, although it exhibits distinct morphological and functional features. Endothelial cells (ECs) lineage fate specification is determined during embryonic development; however, accumulating evidence suggests that differentiated ECs exhibit remarkable heterogeneity and plasticity. In this review, we provide an overview of the molecular mechanisms promoting lymphatic cell fate specification in the mammalian embryo. We also summarize available data suggesting that lymphatic EC fate is reprogrammable in normal and pathological settings. We further discuss the possible advantages of cell fate manipulation to treat certain disorders associated with lymphatic dysfunction. PMID- 29021366 TI - NO donors exhibit anti-inflammatory properties by modulating inflammatory signatures and by regulating the life cycle of dendritic cells. AB - NO mediates a variety of physiologic processes and is considered an important intracellular messenger in different cellular systems. Because of its complex regulation and multiple molecular and cellular targets, NO provides both stimulatory and suppressive properties in the immune system. Dendritic cells (DCs) are considered the most potent APCs, whose regulation has important implications in the induction of an effective immune response. In this study, we analyzed the effect of the compound NCX 2057, a new class of NO-releasing derivatives of ferulic acid, on activation and functional properties of DCs. NCX 2057 was able to modulate the inflammatory program, the cytokines production, and the cellular life cycle but not the maturation markers and the T cells stimulatory capacity of DCs in the presence or absence of LPS. The results indicate that NCX 2057 may modulate different aspects of the activation of DCs and suggest novel applications of NO donors in the contest of inflammatory response modulation through the life cycle regulation of DCs. PMID- 29021369 TI - New Evidence against Chromium as an Essential Trace Element. AB - Nearly 60 y ago, chromium, as the trivalent ion, was proposed to be an essential element, but the results of new studies indicate that chromium currently can only be considered pharmacologically active and not an essential element. Regardless, articles still continue to appear in the literature claiming chromium is an essential element. Chromium has been marketed as an agent to reduce body mass and develop muscle; however, such marketing claims are no longer allowed in the United States because these claims, similar to claims of essential status, are not supported by experiments. Trivalent chromium has also been proposed as a therapeutic agent to increase insulin sensitivity and affect lipid metabolism. Although effective in certain rodent models, beneficial effects in humans have not been unequivocally established. Molecular mechanisms have been proposed for the beneficial effects but have not been definitively shown to occur in animals. PMID- 29021367 TI - Disruption of Trim9 function abrogates macrophage motility in vivo. AB - The vertebrate immune response comprises multiple molecular and cellular components that interface to provide defense against pathogens. Because of the dynamic complexity of the immune system and its interdependent innate and adaptive functionality, an understanding of the whole-organism response to pathogen exposure remains unresolved. Zebrafish larvae provide a unique model for overcoming this obstacle, because larvae are protected against pathogens while lacking a functional adaptive immune system during the first few weeks of life. Zebrafish larvae were exposed to immune agonists for various lengths of time, and a microarray transcriptome analysis was executed. This strategy identified known immune response genes, as well as genes with unknown immune function, including the E3 ubiquitin ligase tripartite motif-9 (Trim9). Although trim9 expression was originally described as "brain specific," its expression has been reported in stimulated human Mphis. In this study, we found elevated levels of trim9 transcripts in vivo in zebrafish Mphis after immune stimulation. Trim9 has been implicated in axonal migration, and we therefore investigated the impact of Trim9 disruption on Mphi motility and found that Mphi chemotaxis and cellular architecture are subsequently impaired in vivo. These results demonstrate that Trim9 mediates cellular movement and migration in Mphis as well as neurons. PMID- 29021368 TI - Spontaneous PMN apoptosis in type 2 diabetes and the impact of periodontitis. AB - The purpose of this study was to test the hypothesis that peripheral blood neutrophils (PMN) exhibit delayed spontaneous apoptosis in individuals with diabetes mellitus type 2 (T2DM) and that the delay is exacerbated further among people who coexpress chronic periodontitis (CP). Seventy-three individuals were enrolled, including those with T2DM (n = 16), CP (n = 15), T2DM + CP (n = 21), and healthy volunteers (n = 21). PMN apoptosis was determined by flow cytometry using TUNEL and Annexin V assays. The activity of caspase-3, -8, and -9 was measured by colorimetric assay. PMN surface death receptor quantification was performed by flow cytometry staining with fluorescence-conjugated anti-CD120a (TNFR1) and anti-CD95 [Fas receptor (FasR)] antibody. Analysis of inflammatory markers in serum samples was performed using multiplexed sandwich immunoassays. In healthy volunteers and individuals with T2DM, CP, and T2DM + CP, spontaneous PMN apoptosis observed at 12 h reached 85.3 +/- 3.1, 67.3 +/- 3.9, 62.9 +/- 3.5 and 62.5 +/- 5.4%, respectively (P < 0.05). Caspase-3 activity was significantly reduced in individuals with T2DM and T2DM + CP (P < 0.05) when compared with healthy volunteers. Caspase-8 activity was also significantly decreased in CP and T2DM + CP (P < 0.05), associated with reduced cell-surface FasR, TNFRs, and Fas ligand (FasL) serum levels. Glucose alone was not observed to impact PMN apoptosis; simultaneous incubation with the receptor for advanced glycation endproducts (RAGE) agonist S100B induced significant PMN apoptosis (P < 0.05). These data support the premise that the inhibition of PMN apoptosis in individuals with T2DM occurs through an advanced glycation endproducts/RAGE ligand/receptor-mediated interaction. PMID- 29021371 TI - Consumption of a Double-Fortified Salt Affects Perceptual, Attentional, and Mnemonic Functioning in Women in a Randomized Controlled Trial in India. AB - Background: Iron deficiency and iron deficiency anemia have been shown to have negative effects on aspects of perception, attention, and memory.Objective: The purpose of this investigation was to assess the extent to which increases in dietary iron consumption are related to improvements in behavioral measures of perceptual, attentional, and mnemonic function.Methods: Women were selected from a randomized, double-blind, controlled food-fortification trial involving ad libitum consumption of either a double-fortified salt (DFS) containing 47 mg potassium iodate/kg and 3.3 mg microencapsulated ferrous fumarate/g (1.1 mg elemental Fe/g) or a control iodized salt. Participants' blood iron status (primary outcomes) and cognitive functioning (secondary outcomes) were assessed at baseline and after 10 mo at endline. The study was performed on a tea plantation in the Darjeeling district of India. Participants (n = 126; 66% iron deficient and 49% anemic at baseline) were otherwise healthy women of reproductive age, 18-55 y.Results: Significant improvements were documented for iron status and for perceptual, attentional, and mnemonic function in the DFS group (percentage of variance accounted for: 16.5%) compared with the control group. In addition, the amount of change in perceptual and cognitive performance was significantly (P < 0.05) related to the amount of change in blood iron markers (mean percentage of variance accounted for: 16.0%) and baseline concentrations of blood iron markers (mean percentage of variance accounted for: 25.0%). Overall, there was evidence that the strongest effects of change in iron status were obtained for perceptual and low-level attentional function.Conclusion: DFS produced measurable and significant improvements in the perceptual, attentional, and mnemonic performance of Indian female tea pickers of reproductive age. This trial was registered at clinicaltrials.gov as NCT01032005. PMID- 29021370 TI - Integrating Nutrition Interventions into an Existing Maternal, Neonatal, and Child Health Program Increased Maternal Dietary Diversity, Micronutrient Intake, and Exclusive Breastfeeding Practices in Bangladesh: Results of a Cluster Randomized Program Evaluation. AB - Background: Maternal undernutrition is a major concern globally, contributing to poor birth outcomes. Limited evidence exists on delivering multiple interventions for maternal nutrition simultaneously. Alive & Thrive addressed this gap by integrating nutrition-focused interpersonal counseling, community mobilization, distribution of free micronutrient supplements, and weight-gain monitoring through an existing Maternal, Neonatal, and Child Health (MNCH) program in Bangladesh.Objectives: We evaluated the effect of providing nutrition-focused MNCH compared with standard MNCH (antenatal care with standard nutrition counseling) on coverage of nutrition interventions, maternal dietary diversity, micronutrient supplement intake, and early breastfeeding practices.Methods: We used a cluster-randomized design with cross-sectional surveys at baseline (2015) and endline (2016) (n ~ 300 and 1000 pregnant or recently delivered women, respectively, per survey round). We derived difference-in-difference effect estimates, adjusted for geographic clustering and infant age and sex.Results: Coverage of interpersonal counseling was high; >90% of women in the nutrition focused MNCH group were visited at home by health workers for maternal nutrition and breastfeeding counseling. The coverage of community mobilization activities was ~50%. Improvements were significantly greater in the nutrition-focused MNCH group than in the standard MNCH group for consumption of iron and folic acid [effect: 9.8 percentage points (pp); 46 tablets] and calcium supplements (effect: 12.8 pp; 50 tablets). Significant impacts were observed for the number of food groups consumed (effect: 1.6 food groups), percentage of women who consumed >=5 food groups/d (effect: 30.0 pp), and daily intakes of several micronutrients. A significant impact was also observed for exclusive breastfeeding (EBF; effect: 31 pp) but not for early initiation of breastfeeding.Conclusions: Addressing nutrition during pregnancy by delivering interpersonal counseling and community mobilization, providing free supplements, and ensuring weight-gain monitoring through an existing MNCH program improved maternal dietary diversity, micronutrient supplement consumption, and EBF practices. This trial was registered at clinicaltrials.gov as NCT02745249. PMID- 29021372 TI - Ammonia Nitrogen Added to Diets Deficient in Dispensable Amino Acid Nitrogen Is Poorly Utilized for Urea Production in Growing Pigs. AB - Background: Including ammonia in low-crude protein (CP) diets deficient in dispensable amino acid (DAAs) increases nitrogen retention in growing pigs.Objective: We investigated the absorption and metabolism of dietary ammonia nitrogen in the portal-drained viscera (PDV) and liver of pigs fed a diet deficient in DAA nitrogen.Methods: Eight pigs with an initial mean +/- SD body weight (BW) of 26.5 +/- 1.4 kg were surgically fitted with 4 catheters each (portal, hepatic and mesenteric veins, and carotid artery). The pigs were fed (2.8 * 191 kcal/kg BW0.60), for 7 d and every 8 h, a diet deficient in DAA nitrogen supplemented with increasing amounts of ammonia nitrogen (CP: 7.76%, 9.27%, and 10.77%; indispensable amino acid nitrogen:total nitrogen ratio: 0.71, 0.59, and 0.50 for control and low- and high-ammonia diets, respectively). The treatment sequence was based on a Latin square design with 3 consecutive periods. On the last day of each period, blood flows in the portal and hepatic veins were determined with a continuous infusion of rho-amino hippuric acid into the mesenteric vein. Serial blood samples were taken to determine ammonia and urea nitrogen concentration. Net balances of ammonia and urea nitrogen were calculated for the PDV and liver.Results: Cumulative (8 h) ammonia nitrogen appearance in the portal vein increased (P <= 0.05) with ammonia intake (433, 958, and 1629 +/- 60 mg ammonia nitrogen/meal for control and low- and high-ammonia diets, respectively). The cumulative hepatic uptake of ammonia nitrogen increased (P <= 0.05) with ammonia nitrogen supply. The cumulative urea nitrogen appearance in the hepatic vein tended to increase (P <= 0.10) only in high-ammonia treatment ( 92.5, -59.4, and 209.7 +/- 92 mg urea nitrogen/meal for control and low- and high ammonia diets, respectively) and, relative to the control diet, represented -6.0% and 11% of ammonia nitrogen intake.Conclusion: Dietary ammonia nitrogen is poorly utilized for urea production across splanchnic organs when pigs are fed diets deficient in DAA nitrogen. PMID- 29021373 TI - A Specialist Macaque MHC Class I Molecule with HLA-B*27-like Peptide-Binding Characteristics. AB - In different macaque species, the MHC A2*05 gene is present in abundance, and its gene products are characterized by low cell-surface expression and a highly conserved peptide-binding cleft. We have characterized the peptide-binding motif of Mamu-A2*05:01, and elucidated the binding capacity for virus-derived peptides. The macaque A2*05 allotype prefers the basic amino acid arginine at the second position of the peptide, and hydrophobic and polar amino acids at the C-terminal end. These preferences are shared with HLA-B*27 and Mamu-B*008, molecules shown to be involved in elite control in human HIV type 1 and macaque SIV infections, respectively. In contrast, however, Mamu-A2*05 preferentially binds 8-mer peptides. Retention in the endoplasmic reticulum seems to be the cause of the lower cell-surface expression. Subsequent peptide-binding studies have illustrated that Mamu-A2*05:01 is able to bind SIV-epitopes known to evoke a strong CD8+ T cell response in the context of the Mamu-B*008 allotype in SIV infected rhesus macaques. Thus, the macaque A2*05 gene encodes a specialized MHC class I molecule, and is most likely transported to the cell surface only when suitable peptides become available. PMID- 29021374 TI - Reactive Oxygen Species Regulate the Inflammatory Function of NKT Cells through Promyelocytic Leukemia Zinc Finger. AB - Reactive oxygen species (ROS) are byproducts of aerobic metabolism and contribute to both physiological and pathological conditions as second messengers. ROS are essential for activation of T cells, but how ROS influence NKT cells is unknown. In the present study, we investigated the role of ROS in NKT cell function. We found that NKT cells, but not CD4 or CD8 T cells, have dramatically high ROS in the spleen and liver of mice but not in the thymus or adipose tissues. Accordingly, ROS-high NKT cells exhibited increased susceptibility and apoptotic cell death with oxidative stress. High ROS in the peripheral NKT cells were primarily produced by NADPH oxidases and not mitochondria. We observed that sorted ROS-high NKT cells were enriched in NKT1 and NKT17 cells, whereas NKT2 cells were dominant in ROS-low cells. Furthermore, treatment of NKT cells with antioxidants led to reduced frequencies of IFN-gamma- and IL-17-expressing cells, indicating that ROS play a role in regulating the inflammatory function of NKT cells. The transcription factor promyelocytic leukemia zinc finger (PLZF) seemed to control the ROS levels. NKT cells from adipose tissues that do not express PLZF and those from PLZF haplodeficient mice have low ROS. Conversely, ROS were highly elevated in CD4 T cells from mice ectopically expressing PLZF. Thus, our findings demonstrate that PLZF controls ROS levels, which in turn governs the inflammatory function of NKT cells. PMID- 29021375 TI - Maternal High Fiber Diet during Pregnancy and Lactation Influences Regulatory T Cell Differentiation in Offspring in Mice. AB - Short-chain fatty acids (SCFAs), the end products of dietary fiber, influence the immune system. Moreover, during pregnancy the maternal microbiome has a great impact on the development of the offspring's immune system. However, the exact mechanisms by which maternal SCFAs during pregnancy and lactation influence the immune system of offspring are not fully understood. We investigated the molecular mechanisms underlying regulatory T cell (Treg) differentiation in offspring regulated by a maternal high fiber diet (HFD). Plasma levels of SCFAs in offspring from HFD-fed mice were higher than in those from no fiber diet-fed mice. Consequently, the offspring from HFD-fed mice had higher frequencies of thymic Treg (tTreg) and peripheral Tregs We found that the offspring of HFD-fed mice exhibited higher autoimmune regulator (Aire) expression, a transcription factor expressed in the thymic microenvironment, suggesting SCFAs promote tTreg differentiation through increased Aire expression. Notably, the receptor for butyrate, G protein-coupled receptor 41 (GPR41), is highly expressed in the thymic microenvironment and Aire expression is not increased by stimulation with butyrate in GPR41-deficient mice. Our studies highlight the significance of SCFAs produced by a maternal HFD for Treg differentiation in the thymus of offspring. Given that Aire expression is associated with the induction of tTregs, the maternal microbiome influences Treg differentiation in the thymus of offspring through GPR41-mediated Aire expression. PMID- 29021376 TI - ARIH2 Ubiquitinates NLRP3 and Negatively Regulates NLRP3 Inflammasome Activation in Macrophages. AB - The nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a molecular platform that induces caspase-1 activation and subsequent IL-1beta maturation, and is implicated in inflammatory diseases; however, little is known about the negative regulation of NLRP3 inflammasome activation. In this article, we identified an E3 ligase, Ariadne homolog 2 (ARIH2), as a posttranslational negative regulator of NLRP3 inflammasome activity in macrophages. ARIH2 interacted with NLRP3 via its NACHT domain (aa 220-575) in the NLRP3 inflammasome complex. In particular, we found that while using mutants of ARIH2 and ubiquitin, the really interesting new gene 2 domain of ARIH2 was required for NLRP3 ubiquitination linked through K48 and K63. Deletion of endogenous ARIH2 using CRISPR/Cas9 genome editing inhibited NLRP3 ubiquitination and promoted NLRP3 inflammasome activation, resulting in apoptosis-associated speck-like protein containing a caspase recruitment domain oligomerization, pro-IL-1beta processing, and IL-1beta production. Conversely, ARIH2 overexpression promoted NLRP3 ubiquitination and inhibited NLRP3 inflammasome activation. Our findings reveal a novel mechanism of ubiquitination dependent negative regulation of the NLRP3 inflammasome by ARIH2 and highlight ARIH2 as a potential therapeutic target for inflammatory diseases. PMID- 29021377 TI - A Comprehensive Review of Sequencing and Combination Strategies of Targeted Agents in Metastatic Colorectal Cancer. AB - : The emergence of targeted therapies for the treatment of metastatic colorectal cancer (mCRC) has considerably improved survival, but has also resulted in a dilemma of identifying the optimal sequence and combination of various agents in the mCRC treatment landscape. A number of cytotoxic agents, including irinotecan, oxaliplatin, 5-fluorouracil, capecitabine, and TAS-102, are available for treatment of mCRC. Additionally, whereas patients harboring rat sarcoma viral oncogene homolog (RAS)-wild type mCRC can be treated with the anti-epidermal growth factor receptor antibodies cetuximab and panitumumab or antiangiogenic agents (bevacizumab, ziv-aflibercept, and ramucirumab), patients with RAS-mutant mCRC are limited to antiangiogenic agents as biologic options. Regorafenib, a multikinase inhibitor, can be used in both RAS subgroups. As such, the recommended sequence of therapies that should be received by each subgroup must also be considered separately. This review provides an overview of recent clinical data for approved and investigational targeted therapies that have been studied across different mCRC treatment lines and patient subgroups. It also examines emerging trends in the treatment landscape for mCRC, including treatment with immune checkpoint inhibitors and the utilization of genomic profiling. IMPLICATIONS FOR PRACTICE: Currently, there are no established guidelines for optimal sequencing of cytotoxic or targeted agents in metastatic colorectal cancer (mCRC). This review provides a snapshot of the current mCRC treatment paradigm and examines the latest clinical data that support the utilization of several targeted agents alone or in combination with backbone chemotherapy across different lines of treatment and patient populations, highlighting recommendations for their usage. Recent advances in the treatment landscape are also summarized, including genomic profiling and preliminary results with immune checkpoint inhibitors. PMID- 29021379 TI - Cancer Immunotherapy Trials Underutilize Immune Response Monitoring. AB - Immune-related radiological and biomarker monitoring in cancer immunotherapy trials permits interrogation of efficacy and reasons for therapeutic failure. We report the results from a cross-sectional analysis of response monitoring in 685 T-cell checkpoint-targeted cancer immunotherapy trials in solid malignancies, as registered on the U.S. National Institutes of Health trial registry by October 2016. Immune-related radiological response criteria were registered for only 25% of clinical trials. Only 38% of trials registered an exploratory immunological biomarker, and registration of immunological biomarkers has decreased over the last 15 years. We suggest that increasing the utilization of immune-related response monitoring across cancer immunotherapy trials will improve analysis of outcomes and facilitate translational efforts to extend the benefit of immunotherapy to a greater proportion of patients with cancer. PMID- 29021378 TI - Outcomes of a Specialized Interdisciplinary Approach for Patients with Cancer with Aberrant Opioid-Related Behavior. AB - BACKGROUND: Data on the development and outcomes of effective interventions to address aberrant opioid-related behavior (AB) in patients with cancer are lacking. Our outpatient supportive care clinic developed and implemented a specialized interdisciplinary team approach to manage patients with AB. The purpose of this study was to report clinical outcomes of this novel intervention. MATERIALS AND METHODS: The medical records of 30 consecutive patients with evidence of AB who received the intervention and a random control group of 70 patients without evidence of AB between January 1, 2015, and August 31, 2016, were reviewed. RESULTS: At baseline, pain intensity (p = .002) and opioid dose (p = .001) were significantly higher among patients with AB. During the course of the study, the median number of ABs per month significantly decreased from three preintervention to 0.4 postintervention (p < .0001). The median morphine equivalent daily dose decreased from 165 mg/day at the first intervention visit to 112 mg/day at the last follow-up (p = .018), although pain intensity did not significantly change (p = .984). "Request for opioid medication refills in the clinic earlier than the expected time" was the AB with the highest frequency prior to the intervention and the greatest improvement during the study period. Younger age (p < .0001) and higher Edmonton Symptom Assessment System anxiety score (p = .005) were independent predictors of the presence of AB. CONCLUSION: The intervention was associated with a reduction in the frequency of AB and opioid utilization among patients with cancer receiving chronic opioid therapy. More research is needed to further characterize the clinical effectiveness of this intervention. IMPLICATIONS FOR PRACTICE: There are currently no well-defined and evidence-based strategies to manage cancer patients on chronic opioid therapy who demonstrate aberrant opioid-related behavior. The findings of this study offer a promising starting point for the creation of a standardized strategy for clinicians and provides valuable information to guide their practice regarding these patients. The study results will also help clinicians to better understand the types and frequencies of the most common aberrant behaviors observed among patients with cancer who are receiving chronic opioid therapy. This will enhance the process of timely patient identification, management, or referral to the appropriate specialist teams. PMID- 29021380 TI - Cost-Effectiveness of Nivolumab in Recurrent Metastatic Head and Neck Squamous Cell Carcinoma. AB - BACKGROUND: Treatment options for patients with platinum-refractory, recurrent, metastatic head and neck squamous cell carcinoma (r/m HNSCC) are limited and prognosis is poor. The recent CheckMate 141 clinical trial demonstrated that nivolumab, an anti-programmed cell death protein 1 monoclonal antibody, was efficacious in extending the median overall survival (OS) in this patient population compared with standard therapies. We conducted a cost-effectiveness analysis to determine whether nivolumab is a cost-effective treatment in this patient population and examined various subgroups to determine for which, if any, the treatment is more cost-effective. MATERIALS AND METHODS: We implemented a state transition model for HNSCC with a patient cohort who had tumor progression 6 months after the last dose of platinum-containing chemotherapy and compared the cost-effectiveness of nivolumab with docetaxel. Treatment effect estimates and adverse event rates were obtained from CheckMate 141. Costs, utilities, and other model inputs were gathered from published sources. We used a Canadian perspective, a 5-year time horizon, and a 1.5% discount rate for the analysis. RESULTS: Nivolumab extended mean OS by 4 months compared with docetaxel and resulted in fewer treatment-related adverse events, producing an incremental effectiveness of 0.13 quality-adjusted life years (QALY). The incremental cost of treatment with nivolumab was $18,823. At a willingness-to-pay threshold of $100,000/QALY, nivolumab was not a cost-effective treatment option for r/m HNSCC, with an incremental cost-effectiveness ratio of $144,744/QALY. Nivolumab would be cost-effective if its price was reduced by 20%. Our subgroup analysis seemed to indicate that nivolumab might be cost-effective for tumors with expression of programmed death-ligand 1 >5%. CONCLUSION: We conclude that although nivolumab offers clinical benefit for the treatment of r/m HNSCC over current regimens, it is not cost-effective based on its list price. We have also established a value based price estimate for nivolumab to be cost-effective in this patient population. Further study is required to draw a definitive conclusion on biomarkers for cost-effectiveness. IMPLICATIONS FOR PRACTICE: In health care settings in which cost considerations are a constraint on choice of therapy, patient selection should be carefully considered to maintain efficiency in the system. Until a biomarker for response to therapy is identified for nivolumab, this medication is unlikely to be cost-effective for most patients with recurrent, metastatic head and neck squamous cell carcinoma. PMID- 29021381 TI - Activation of Focal Adhesion Kinase and Src Mediates Acquired Sorafenib Resistance in A549 Human Lung Adenocarcinoma Xenografts. AB - Despite encouraging clinical results with sorafenib monotherapy in patients with KRAS-mutant non-small-cell lung cancer (NSCLC), the overall survival benefit of this drug is limited by the inevitable development of acquired resistance. The exact mechanism underlying acquired sorafenib resistance in KRAS-mutant NSCLC is unclear. In this study, the mechanism of acquired sorafenib resistance was explored using a biologically relevant xenograft model, which was established by using the A549 human lung adenocarcinoma cell line and an in vivo-derived, sorafenib-resistant A549 subline (A549/SRFres). Results from the initial study demonstrated that sorafenib treatment significantly decreased E-cadherin (P < 0.05) levels but significantly increased matrix metallopeptidase 9 (MMP9) levels (P < 0.01) in A549/SRFres tumors, whereas expression levels of phospho-protein kinase B (AKT), phospho-focal adhesion kinase (FAK), and phospho-Src were elevated in sorafenib-treated A549 and A549/SRFres tumors. We next examined whether concomitant dasatinib treatment could overcome acquired sorafenib resistance by blocking the FAK/Src escape route that mediates resistance. Despite the observed in vitro synergy between sorafenib and dasatinib, the in vivo antitumor effect of half-dose sorafenib-dasatinib combination therapy was inferior to that of the full-dose sorafenib treatment. Although the sorafenib dasatinib combination effectively inhibited Src and AKT phosphorylation, it did not block the Y576/577-FAK phosphorylation, nor did it decrease vimentin protein expression; unexpectedly, it increased Y397-FAK phosphorylation and MMP9 protein expression in tumors. These results suggest that acquired sorafenib resistance in KRAS-mutant A549 xenografts involves the compensatory activation of FAK and Src, and Src inhibition alone is insufficient to diminish sorafenib-promoted epithelial-mesenchymal transition process and invasive potentials in tumors. PMID- 29021382 TI - Sustained Activation of Guanylate Cyclase-A with TDT, a Natriuretic Peptide Derivative, Exhibits Cardiorenal Protection in Dahl Salt-Sensitive Hypertensive Rats. AB - Heart failure often presents with prognosis-relevant impaired renal function. To investigate whether the chronic activation of guanylate cyclase-A (GC-A) protects both heart and kidney, we examined the effects of TDT, a neprilysin (NEP) resistant natriuretic peptide (NP) derivative, on cardiac and renal dysfunction in Dahl salt-sensitive hypertensive (DS) rats. Pretreatment with NEP or NEP inhibitor did not influence GC-A activation by TDT both in vitro and in vivo, resulting in a long-acting profile of TDT compared with native human atrial NP (hANP). The repeated administration of TDT to DS rats suppressed the progress of cardiac hypertrophy, systolic/diastolic dysfunction, and proteinuria in a dose dependent manner. Compared with vehicle and hANP, salt diet-induced podocyte injury was reduced by TDT, as analyzed by urinary podocalyxin concentration, renal expression of nephrin mRNA, and glomerular expression of desmin protein. Since glomerular TRPC6 plays detrimental roles in podocyte homeostasis, we examined the renal expression of TRPC6 in DS rats and found that salt diet upregulated the expression of TRPC6. Importantly, TRPC6 induction was significantly decreased in TDT-treated rats, compared with vehicle and hANP. Consistently, in primary-culture podocytes from DS rats, TDT inhibited ATP induced calcium influx, similar to TRPC inhibitor SKF96365. Finally, TDT-mediated protection of podocytes was abolished by protein kinase G inhibitor KT5823. In conclusion, TDT treatment attenuated heart and kidney dysfunction, accompanied by podocyte protection through inhibition of TRPC6. Thus, long-acting NPs could be a new avenue for treatment of heart failure. PMID- 29021383 TI - Wnt/beta-Catenin-Promoted Macrophage Alternative Activation Contributes to Kidney Fibrosis. AB - The Wnt/beta-catenin pathway is crucial in normal development and throughout life, but aberrant activation of this pathway has been linked to kidney fibrosis, although the mechanisms involved remain incompletely determined. Here, we investigated the role of Wnt/beta-catenin in regulating macrophage activation and the contribution thereof to kidney fibrosis. Treatment of macrophages with Wnt3a exacerbated IL-4- or TGFbeta1-induced macrophage alternative (M2) polarization and the phosphorylation and nuclear translocation of STAT3 in vitro Conversely, inhibition of Wnt/beta-catenin signaling prevented these IL-4- or TGFbeta1 induced processes. In a mouse model, induced deletion of beta-catenin in macrophages attenuated the fibrosis, macrophage accumulation, and M2 polarization observed in the kidneys of wild-type littermates after unilateral ureter obstruction. This study shows that activation of Wnt/beta-catenin signaling promotes kidney fibrosis by stimulating macrophage M2 polarization. PMID- 29021387 TI - Timing of onset of symptoms in people with idiopathic pulmonary fibrosis. AB - Little is known about when symptoms of idiopathic pulmonary fibrosis first develop. We identified incident cases of idiopathic pulmonary fibrosis-clinical syndrome (IPF-CS) from a UK primary care database and assessed the frequency of consultations for common symptoms in the 5 years prior to diagnosis. 1671 cases were identified with 5 years of data prior to diagnosis. Breathlessness was the most common symptom, followed by cough. Cases were significantly more likely than controls to experience these symptoms (p<0.001), even 4-5 years before diagnosis (OR for breathlessness for this period 2.79, 95% CI 2.13 to 3.65). This suggests that some patients with IPF may be symptomatic for more than 5 years before diagnosis. PMID- 29021384 TI - Impaired beta-Oxidation and Altered Complex Lipid Fatty Acid Partitioning with Advancing CKD. AB - Studies of lipids in CKD, including ESRD, have been limited to measures of conventional lipid profiles. We aimed to systematically identify 17 different lipid classes and associate the abundance thereof with alterations in acylcarnitines, a metric of beta-oxidation, across stages of CKD. From the Clinical Phenotyping Resource and Biobank Core (CPROBE) cohort of 1235 adults, we selected a panel of 214 participants: 36 with stage 1 or 2 CKD, 99 with stage 3 CKD, 61 with stage 4 CKD, and 18 with stage 5 CKD. Among participants, 110 were men (51.4%), 64 were black (29.9%), and 150 were white (70.1%), and the mean (SD) age was 60 (16) years old. We measured plasma lipids and acylcarnitines using liquid chromatography-mass spectrometry. Overall, we identified 330 different lipids across 17 different classes. Compared with earlier stages, stage 5 CKD associated with a higher abundance of saturated C16-C20 free fatty acids (FFAs) and long polyunsaturated complex lipids. Long-chain-to-intermediate-chain acylcarnitine ratio, a marker of efficiency of beta-oxidation, exhibited a graded decrease from stage 2 to 5 CKD (P<0.001). Additionally, multiple linear regression revealed that the long-chain-to-intermediate-chain acylcarnitine ratio inversely associated with polyunsaturated long complex lipid subclasses and the C16-C20 FFAs but directly associated with short complex lipids with fewer double bonds. We conclude that increased abundance of saturated C16-C20 FFAs coupled with impaired beta-oxidation of FFAs and inverse partitioning into complex lipids may be mechanisms underpinning lipid metabolism changes that typify advancing CKD. PMID- 29021388 TI - In vivo beta and gamma subthreshold oscillations in rat mitral cells: origin and gating by respiratory dynamics. AB - In mammals, olfactory bulb (OB) dynamics are paced by slow and fast oscillatory rhythms at multiple levels: local field potential, spike discharge, and/or membrane potential oscillations. Interactions between these levels have been well studied for the slow rhythm linked to animal respiration. However, less is known regarding rhythms in the fast beta (10-35 Hz) and gamma (35-100 Hz) frequency ranges, particularly at the membrane potential level. Using a combination of intracellular and extracellular recordings in the OB of freely breathing rats, we show that beta and gamma subthreshold oscillations (STOs) coexist intracellularly and are related to extracellular local field potential (LFP) oscillations in the same frequency range. However, they are differentially affected by changes in cell excitability and by odor stimulation. This leads us to suggest that beta and gamma STOs may rely on distinct mechanisms: gamma STOs would mainly depend on mitral cell intrinsic resonance, while beta STOs could be mainly driven by synaptic activity. In a second study, we find that STO occurrence and timing are constrained by the influence of the slow respiratory rhythm on mitral and tufted cells. First, respiratory-driven excitation seems to favor gamma STOs, while respiratory-driven inhibition favors beta STOs. Second, the respiratory rhythm is needed at the subthreshold level to lock gamma and beta STOs in similar phases as their LFP counterparts and to favor the correlation between STO frequency and spike discharge. Overall, this study helps us to understand how the interaction between slow and fast rhythms at all levels of OB dynamics shapes its functional output. NEW & NOTEWORTHY In the mammalian olfactory bulb of a freely breathing anesthetized rat, we show that both beta and gamma membrane potential fast oscillation ranges exist in the same mitral and tufted (M/T) cell. Importantly, our results suggest they have different origins and that their interaction with the slow subthreshold oscillation (respiratory rhythm) is a key mechanism to organize their dynamics, favoring their functional implication in olfactory bulb information processing. PMID- 29021386 TI - Suppression of microRNA Activity in Kidney Collecting Ducts Induces Partial Loss of Epithelial Phenotype and Renal Fibrosis. AB - microRNAs (miRNAs) are sequence-specific inhibitors of post-transcriptional gene expression. The physiologic function of these noncoding RNAs in postnatal renal tubules still remains unclear. Surprisingly, they appear to be dispensable for mammalian proximal tubule (PT) function. Here, we examined the effects of miRNA suppression in collecting ducts (CDs). To conclusively evaluate the role of miRNAs, we generated three mouse models with CD-specific inactivation of key miRNA pathway genes Dicer, Dgcr8, and the entire Argonaute gene family (Ago1, 2, 3, and 4). Characterization of these three mouse models revealed that inhibition of miRNAs in CDs spontaneously evokes a renal tubule injury-like response, which culminates in progressive tubulointerstitial fibrosis (TIF) and renal failure. Global miRNA profiling of microdissected renal tubules showed that miRNAs exhibit segmental distribution along the nephron and CDs. In particular, the expression of miR-200c is nearly 70-fold higher in CDs compared with PTs. Accordingly, miR 200s are downregulated in Dicer-KO CDs, its direct target genes Zeb1, Zeb2, and Snail2 are upregulated, and miRNA-depleted CDs undergo partial epithelial-to mesenchymal transition (EMT). Thus, miRNAs are essential for CD homeostasis. Downregulation of CD-enriched miRNAs and the subsequent induction of partial EMT may be a new mechanism for TIF progression. PMID- 29021385 TI - Aldosterone Is Essential for Angiotensin II-Induced Upregulation of Pendrin. AB - The renin-angiotensin-aldosterone system has an important role in the control of fluid homeostasis and BP during volume depletion. Dietary salt restriction elevates circulating angiotensin II (AngII) and aldosterone levels, increasing levels of the Cl-/HCO3- exchanger pendrin in beta-intercalated cells and the Na+ Cl- cotransporter (NCC) in distal convoluted tubules. However, the independent roles of AngII and aldosterone in regulating these levels remain unclear. In C57BL/6J mice receiving a low-salt diet or AngII infusion, we evaluated the membrane protein abundance of pendrin and NCC; assessed the phosphorylation of the mineralocorticoid receptor, which selectively inhibits aldosterone binding in intercalated cells; and measured BP by radiotelemetry in pendrin-knockout and wild-type mice. A low-salt diet or AngII infusion upregulated NCC and pendrin levels, decreased the phosphorylation of mineralocorticoid receptor in beta intercalated cells, and increased plasma aldosterone levels. Notably, a low-salt diet did not alter BP in wild-type mice, but significantly decreased BP in pendrin-knockout mice. To dissect the roles of AngII and aldosterone, we performed adrenalectomies in mice to remove aldosterone from the circulation. In adrenalectomized mice, AngII infusion again upregulated NCC expression, but did not affect pendrin expression despite the decreased phosphorylation of mineralocorticoid receptor. By contrast, AngII and aldosterone coadministration markedly elevated pendrin levels in adrenalectomized mice. Our results indicate that aldosterone is necessary for AngII-induced pendrin upregulation, and suggest that pendrin contributes to the maintenance of normal BP in cooperation with NCC during activation of the renin-angiotensin-aldosterone system by dietary salt restriction. PMID- 29021390 TI - Eye-hand coordination during flexible manual interception of an abruptly appearing, moving target. AB - As a vital skill in an evolving world, interception of moving objects relies on accurate prediction of target motion. In natural circumstances, active gaze shifts often accompany hand movements when exploring targets of interest, but how eye and hand movements are coordinated during manual interception and their dependence on visual prediction remain unclear. Here, we trained gaze unrestrained monkeys to manually intercept targets appearing at random locations and circularly moving with random speeds. We found that well-trained animals were able to intercept the targets with adequate compensation for both sensory transmission and motor delays. Before interception, the animals' gaze followed the targets with adequate compensation for the sensory delay, but not for extra target displacement during the eye movements. Both hand and eye movements were modulated by target kinematics, and their reaction times were correlated. Moreover, retinal errors and reaching errors were correlated across different stages of reach execution. Our results reveal eye-hand coordination during manual interception, yet the eye and hand movements may show different levels of prediction based on the task context. NEW & NOTEWORTHY Here we studied the eye hand coordination of monkeys during flexible manual interception of a moving target. Eye movements were untrained and not explicitly associated with reward. We found that the initial saccades toward the moving target adequately compensated for sensory transmission delays, but not for extra target displacement, whereas the reaching arm movements fully compensated for sensorimotor delays, suggesting that the mode of eye-hand coordination strongly depends on behavioral context. PMID- 29021389 TI - Norepinephrine enhances song responsiveness and encoding in the auditory forebrain of male zebra finches. AB - Norepinephrine (NE) can dynamically modulate excitability and functional connectivity of neural circuits in response to changes in external and internal states. Regulation by NE has been demonstrated extensively in mammalian sensory cortices, but whether NE-dependent modulation in sensory cortex alters response properties in downstream sensorimotor regions is less clear. Here we examine this question in male zebra finches, a songbird species with complex vocalizations and a well-defined neural network for auditory processing of those vocalizations. We test the hypothesis that NE modulates auditory processing and encoding, using paired extracellular electrophysiology recordings and pattern classifier analyses. We report that a NE infusion into the auditory cortical region NCM (caudomedial nidopallium; analogous to mammalian secondary auditory cortex) enhances the auditory responses, burst firing, and coding properties of single NCM neurons. Furthermore, we report that NE-dependent changes in NCM coding properties, but not auditory response strength, are transmitted downstream to the sensorimotor nucleus HVC. Finally, NE modulation in the NCM of males is qualitatively similar to that observed in females: in both sexes, NE increases auditory response strengths. However, we observed a sex difference in the mechanism of enhancement: whereas NE increases response strength in females by decreasing baseline firing rates, NE increases response strength in males by increasing auditory-evoked activity. Therefore, NE signaling exhibits a compensatory sex difference to achieve a similar, state-dependent enhancement in signal-to-noise ratio and coding accuracy in males and females. In summary, our results provide further evidence for adrenergic regulation of sensory processing and modulation of auditory/sensorimotor functional connectivity. NEW & NOTEWORTHY This study documents that the catecholamine norepinephrine (also known as noradrenaline) acts in the auditory cortex to shape local processing of complex sound stimuli. Moreover, it also enhances the coding accuracy of neurons in the auditory cortex as well as in the downstream sensorimotor cortex. Finally, this study shows that while the sensory-enhancing effects of norepinephrine are similar in males and females, there are sex differences in the mode of action. PMID- 29021392 TI - Saccades and reaches curve away from the other effector's target in simultaneous eye and hand movements. AB - Simultaneous eye and hand movements are highly coordinated and tightly coupled. This raises the question whether the selection of eye and hand targets relies on a shared attentional mechanism or separate attentional systems. Previous studies have revealed conflicting results by reporting evidence for both a shared as well as separate systems. Movement properties such as movement curvature can provide novel insights into this question as they provide a sensitive measure for attentional allocation during target selection. In the current study, participants performed simultaneous eye and hand movements to the same or different visual target locations. We show that both saccade and reaching movements curve away from the other effector's target location when they are simultaneously performed to spatially distinct locations. We argue that there is a shared attentional mechanism involved in selecting eye and hand targets that may be found on the level of effector-independent priority maps. NEW & NOTEWORTHY Movement properties such as movement curvature have been widely neglected as important sources of information in investigating whether the attentional systems underlying target selection for eye and hand movements are separate or shared. We convincingly show that movement curvature is influenced by the other effector's target location in simultaneous eye and hand movements to spatially distinct locations. Our results provide evidence for shared attentional systems involved in the selection of saccade and reach targets. PMID- 29021393 TI - Phrenic motoneurons: output elements of a highly organized intraspinal network. AB - pontomedullary respiratory network generates the respiratory pattern and relays it to bulbar and spinal respiratory motor outputs. The phrenic motor system controlling diaphragm contraction receives and processes descending commands to produce orderly, synchronous, and cycle-to-cycle-reproducible spatiotemporal firing. Multiple investigators have studied phrenic motoneurons (PhMNs) in an attempt to shed light on local mechanisms underlying phrenic pattern formation. I and colleagues (Marchenko V, Ghali MG, Rogers RF. Am J Physiol Regul Integr Comp Physiol 308: R916-R926, 2015.) recorded PhMNs in unanesthetized, decerebrate rats and related their activity to simultaneous phrenic nerve (PhN) activity by creating a time-frequency representation of PhMN-PhN power and coherence. On the basis of their temporal firing patterns and relationship to PhN activity, we categorized PhMNs into three classes, each of which emerges as a result of intrinsic biophysical and network properties and organizes the orderly contraction of diaphragm motor fibers. For example, early inspiratory diaphragmatic activation by the early coherent burst generated by high-frequency PhMNs may be necessary to prime it to overcome its initial inertia. We have also demonstrated the existence of a prominent role for local intraspinal inhibitory mechanisms in shaping phrenic pattern formation. The objective of this review is to relate and synthesize recent findings with those of previous studies with the aim of demonstrating that the phrenic nucleus is a region of active local processing, rather than a passive relay of descending inputs. PMID- 29021391 TI - A dual-axis rotation rule for updating the head direction cell reference frame during movement in three dimensions. AB - In the mammalian brain, allocentric (Earth-referenced) head direction, called azimuth, is encoded by head direction (HD) cells, which fire according to the facing direction of the animal's head. On a horizontal surface, rotations of the head around the dorsoventral (D-V) axis, called yaw, correspond to changes in azimuth and elicit appropriate updating of the HD "compass" signal to enable large-scale navigation. However, if the animal moves through three-dimensional (3D) space then there is no longer a simple relationship between yaw rotations and azimuth changes, and so processing of 3D rotations is needed. Construction of a global 3D compass would require complex integration of 3D rotations, and also a large neuronal population, most neurons of which would be silent most of the time since animals rarely sample all available 3D orientations. We propose that, instead, the HD system treats the 3D space as a set of interrelated 2D surfaces. It could do this by updating activity according to both yaw rotations around the D-V axis and rotations of the D-V axis around the gravity-defined vertical axis. We present preliminary data to suggest that this rule operates when rats move between walls of opposing orientations. This dual-axis rule, which we show is straightforward to implement using the classic one-dimensional "attractor" architecture, allows consistent representation of azimuth even in volumetric space and thus may be a general feature of mammalian directional computations even for animals that swim or fly. NEW & NOTEWORTHY Maintaining a sense of direction is complicated when moving in three-dimensional (3D) space. Head direction cells, which update the direction sense based on head rotations, may accommodate 3D movement by processing both rotations of the head around the axis of the animal's body and rotations of the head/body around gravity. With modeling we show that this dual-axis rule works in principle, and we present preliminary data to support its operation in rats. PMID- 29021394 TI - HIV-1 gp120 and Modified Vaccinia Virus Ankara (MVA) gp140 Boost Immunogens Increase Immunogenicity of a DNA/MVA HIV-1 Vaccine. AB - An important goal of human immunodeficiency virus (HIV) vaccine design is identification of strategies that elicit effective antiviral humoral immunity. One novel approach comprises priming with DNA and boosting with modified vaccinia virus Ankara (MVA) expressing HIV-1 Env on virus-like particles. In this study, we evaluated whether the addition of a gp120 protein in alum or MVA-expressed secreted gp140 (MVAgp140) could improve immunogenicity of a DNA prime-MVA boost vaccine. Five rhesus macaques per group received two DNA primes at weeks 0 and 8 followed by three MVA boosts (with or without additional protein or MVAgp140) at weeks 18, 26, and 40. Both boost immunogens enhanced the breadth of HIV-1 gp120 and V1V2 responses, antibody-dependent cellular cytotoxicity (ADCC), and low titer tier 1B and tier 2 neutralizing antibody responses. However, there were differences in antibody kinetics, linear epitope specificity, and CD4 T cell responses between the groups. The gp120 protein boost elicited earlier and higher peak responses, whereas the MVAgp140 boost resulted in improved antibody durability and comparable peak responses after the final immunization. Linear V3 specific IgG responses were particularly enhanced by the gp120 boost, whereas the MVAgp140 boost also enhanced responses to linear C5 and C2.2 epitopes. Interestingly, gp120, but not the MVAgp140 boost, increased peak CD4+ T cell responses. Thus, both gp120 and MVAgp140 can augment potential protection of a DNA/MVA vaccine by enhancing gp120 and V1/V2 antibody responses, whereas potential protection by gp120, but not MVAgp140 boosts, may be further impacted by increased CD4+ T cell responses.IMPORTANCE Prior immune correlate analyses with humans and nonhuman primates revealed the importance of antibody responses in preventing HIV-1 infection. A DNA prime-modified vaccinia virus Ankara (MVA) boost vaccine has proven to be potent in eliciting antibody responses. Here we explore the ability of boosts with recombinant gp120 protein or MVA-expressed gp140 to enhance antibody responses elicited by the GOVX-B11 DNA prime-MVA boost vaccine. We found that both types of immunogen boosts enhanced potentially protective antibody responses, whereas the gp120 protein boosts also increased CD4+ T cell responses. Our data provide important information for HIV vaccine designs that aim for effective and balanced humoral and T cell responses. PMID- 29021395 TI - HCMV utilizes a non-traditional STAT1 activation cascade via signaling through EGFR and integrins to efficiently promote the motility, differentiation, and polarization of infected monocytes. AB - Human cytomegalovirus infects peripheral blood monocytes and triggers biological changes that promote viral dissemination and persistence. We have shown that HCMV induces a pro-inflammatory state in infected monocytes, resulting in enhanced monocyte motility and transendothelial migration, prolonged monocyte survival, and differentiation toward a long-lived M1-like macrophage phenotype. Our data indicate that HCMV triggers these changes, in the absence of de novo viral gene expression and replication, through engagement and activation of EGFR and integrins on the surface of monocytes. We previously identified that HCMV induces the upregulation of multiple pro-inflammatory gene ontologies, with the interferon-associated gene ontology exhibiting the highest percentage of upregulated genes. However, the function of the HCMV-induced ISGs in infected monocytes remained unclear. We now show that HCMV induces the enhanced expression and activation of a key ISG transcriptional regulator, STAT1, via an IFN independent, but EGFR- and integrin-dependent signaling pathway. Furthermore, we identified a biphasic activation of STAT1 that likely promotes two distinct phases of STAT1-mediated transcriptional activity. Moreover, our data show that STAT1 is required for efficient early HCMV-induced enhanced monocyte motility and later for HCMV-induced monocyte-to-macrophage differentiation and for the regulation of macrophage polarization, suggesting that STAT1 may serve as a molecular convergence point linking the biological changes that occur at early and later times post infection. Taken together, our results suggest that HCMV re routes the biphasic activation of a traditionally anti-viral gene product through an EGFR- and integrin-dependent pathway in order to help promote the pro-viral activation and polarization of infected monocytes.IMPORTANCE HCMV promotes multiple functional changes in infected monocytes that are required for viral spread and persistence, including their enhanced motility and differentiation/polarization towards a pro-inflammatory M1 macrophage. We now show that HCMV utilizes the traditionally IFN-associated gene product, STAT1, to promote these changes. Our data suggest that HCMV utilizes EGFR- and integrin dependent (but IFN-independent) signaling pathways to induce STAT1 activation, which may allow the virus to specifically dictate the biological activity of STAT1 during infection. Our data indicate that HCMV utilizes two phases of STAT1 activation, which we argue molecularly links the biological changes that occur following initial binding to those that continue to occur days to weeks following infection. Furthermore, our findings may highlight a unique mechanism for how HCMV avoids the anti-viral response during infection by hijacking the function of a critical component of the IFN response pathway. PMID- 29021396 TI - Quiescence Promotes Latent HIV Infection and Resistance to Reactivation from Latency with Histone Deacetylase Inhibitors. AB - Human immunodeficiency virus type 1 (HIV-1) establishes transcriptionally silent latent infections in resting memory T cells and hematopoietic stem and progenitor cells (HSPCs), which allows the virus to persist in infected individuals despite antiretroviral therapy. Developing in vitro models of HIV-1 latency that recapitulate the characteristics of latently infected cells in vivo is crucial to identifying and developing effective latency-reversing therapies. HSPCs exist in a quiescent state in vivo, and quiescence is correlated with latent infections in T cells. However, current models for culturing HSPCs and for infecting T cells in vitro require that the cells be maintained in an actively proliferating state. Here we describe a novel culture system in which primary human HSPCs cultured under hypothermic conditions are maintained in a quiescent state. We show that these quiescent HSPCs are susceptible to predominantly latent infection with HIV 1, while actively proliferating and differentiating HSPCs obtain predominantly active infections. Furthermore, we demonstrate that the most primitive quiescent HSPCs are more resistant to spontaneous reactivation from latency than more differentiated HSPCs and that quiescent HSPCs are resistant to reactivation by histone deacetylase inhibitors or P-TEFb activation but are susceptible to reactivation by protein kinase C (PKC) agonists. We also demonstrate that inhibition of HSP90, a known regulator of HIV transcription, recapitulates the quiescence and latency phenotypes of hypothermia, suggesting that hypothermia and HSP90 inhibition may regulate these processes by similar mechanisms. In summary, these studies describe a novel model for studying HIV-1 latency in human primary cells maintained in a quiescent state.IMPORTANCE Human immunodeficiency virus type 1 (HIV-1) establishes a persistent infection for which there remains no feasible cure. Current approaches are unable to clear the virus despite decades of therapy due to the existence of latent reservoirs of integrated HIV-1, which can reactivate and contribute to viral rebound following treatment interruption. Previous clinical attempts to reactivate the latent reservoirs in an individual so that they can be eliminated by the immune response or viral cytopathic effect have failed, indicating the need for a better understanding of the processes regulating HIV-1 latency. Here we characterize a novel in vitro model of HIV-1 latency in primary hematopoietic stem and progenitor cells isolated from human cord blood that may better recapitulate the behavior of latently infected cells in vivo This model can be used to study mechanisms regulating latency and potential therapeutic approaches to reactivate latent infections in quiescent cells. PMID- 29021397 TI - Varicella-Zoster Virus Expresses Multiple Small Noncoding RNAs. AB - Many herpesviruses express small noncoding RNAs (sncRNAs), including microRNAs (miRNAs), that may play roles in regulating lytic and latent infections. None have yet been reported in varicella-zoster virus (VZV; also known as human herpesvirus 3 [HHV-3]). Here we analyzed next-generation sequencing (NGS) data for small RNAs in VZV-infected fibroblasts and human embryonic stem cell-derived (hESC) neurons. Two independent bioinformatics analyses identified more than 20 VZV-encoded 20- to 24-nucleotide RNAs, some of which are predicted to have stem loop precursors potentially representing miRNAs. These sequences are perfectly conserved between viruses from three clades of VZV. One NGS-identified sequence common to both bioinformatics analyses mapped to the repeat regions of the VZV genome, upstream of the predicted promoter of the immediate early gene open reading frame 63 (ORF63). This miRNA candidate was detected in each of 3 independent biological repetitions of NGS of RNA from fibroblasts and neurons productively infected with VZV using TaqMan quantitative PCR (qPCR). Importantly, transfected synthetic RNA oligonucleotides antagonistic to the miRNA candidate significantly enhanced VZV plaque growth rates. The presence of 6 additional small noncoding RNAs was also verified by TaqMan qPCR in productively infected fibroblasts and ARPE19 cells. Our results show VZV, like other human herpesviruses, encodes several sncRNAs and miRNAs, and some may regulate infection of host cells.IMPORTANCE Varicella-zoster virus is an important human pathogen, with herpes zoster being a major health issue in the aging and immunocompromised populations. Small noncoding RNAs (sncRNAs) are recognized as important actors in modulating gene expression, and this study demonstrates the first reported VZV-encoded sncRNAs. Many are clustered to a small genomic region, as seen in other human herpesviruses. At least one VZV sncRNA was expressed in productive infection of neurons and fibroblasts that is likely to reduce viral replication. Since sncRNAs have been suggested to be potential targets for antiviral therapies, identification of these molecules in VZV may provide a new direction for development of treatments for painful herpes zoster. PMID- 29021398 TI - Characterization of the African Swine Fever Virus Decapping Enzyme during Infection. AB - African swine fever virus (ASFV) infection is characterized by a progressive decrease in cellular protein synthesis with a concomitant increase in viral protein synthesis, though the mechanism by which the virus achieves this is still unknown. Decrease of cellular mRNA is observed during ASFV infection, suggesting that inhibition of cellular proteins is due to an active mRNA degradation process. ASFV carries a gene (Ba71V D250R/Malawi g5R) that encodes a decapping protein (ASFV-DP) that has a Nudix hydrolase motif and decapping activity in vitro Here, we show that ASFV-DP was expressed from early times and accumulated throughout the infection with a subcellular localization typical of the endoplasmic reticulum, colocalizing with the cap structure and interacting with the ribosomal protein L23a. ASFV-DP was capable of interaction with poly(A) RNA in cultured cells, primarily mediated by the N-terminal region of the protein. ASFV-DP also interacted with viral and cellular RNAs in the context of infection, and its overexpression in infected cells resulted in decreased levels of both types of transcripts. This study points to ASFV-DP as a viral decapping enzyme involved in both the degradation of cellular mRNA and the regulation of viral transcripts.IMPORTANCE Virulent ASFV strains cause a highly infectious and lethal disease in domestic pigs for which there is no vaccine. Since 2007, an outbreak in the Caucasus region has spread to Russia, jeopardizing the European pig population and making it essential to deepen knowledge about the virus. Here, we demonstrate that ASFV-DP is a novel RNA-binding protein implicated in the regulation of mRNA metabolism during infection, making it a good target for vaccine development. PMID- 29021399 TI - Modeling of Antilatency Treatment in HIV: What Is the Optimal Duration of Antiretroviral Therapy-Free HIV Remission? AB - A number of treatment strategies are currently being developed to promote antiretroviral therapy-free HIV cure or remission. While complete elimination of the HIV reservoir would prevent recurrence of infection, it is not clear how different remission lengths would affect viral rebound and transmission. In this work, we use a stochastic model to show that a treatment that achieves a 1-year average time to viral remission will still lead to nearly a quarter of subjects experiencing viral rebound within the first 3 months. Given quarterly viral testing intervals, this leads to an expected 39 (95% uncertainty interval [UI], 22 to 69) heterosexual transmissions and up to 262 (95% UI, 107 to 534) homosexual transmissions per 1,000 treated subjects over a 10-year period. Thus, a balance between high initial treatment levels, risk of recrudescence, and risk of transmission should be considered when assessing the "useful" or optimal length of antiretroviral therapy-free HIV remission to be targeted. We also investigate the trade-off between increasing the average duration of remission versus the risk of treatment failure (viral recrudescence) and the need for retreatment. To minimize drug exposure, we found that the optimal target of antilatency interventions is a 1,700-fold reduction in the size of the reservoir, which leads to an average time to recrudescence of 30 years. Interestingly, this is a significantly lower level of reduction than that required for complete elimination of the viral reservoir. Additionally, we show that when shorter periods are targeted, there is a real probability of viral transmission occurring between tests for viral rebound.IMPORTANCE Current treatment of HIV involves patients taking antiretroviral therapy to ensure that the level of virus remains very low or undetectable. Continuous therapy is required, as the virus persists in a latent state within cells, and when therapy is stopped, the virus rebounds, usually within 2 weeks. A major question is how to reduce the amount of persistent virus and therefore allow a delay or remission until the virus returns after ceasing therapy. In this work, we consider the probability that HIV will still rebound even after this reduction and ask what the likelihood of viral transmission would be in this case. PMID- 29021401 TI - RNASeq analysis of differentiated keratinocytes reveals a massive response to late events during human papillomavirus type 16 infection, including loss of epithelial barrier function. AB - The human papillomavirus (HPV) replication cycle is tightly linked to epithelial cell differentiation. To examine HPV-associated changes in the keratinocyte transcriptome, RNAs isolated from undifferentiated and differentiated cell populations of normal, spontaneously immortalised, keratinocytes (NIKS), and NIKS stably transfected with HPV16 episomal genomes (NIKS16), were compared using RNASeq. HPV16 infection altered expression of 2862 cellular genes. Next, to elucidate the role of keratinocyte gene expression in late events during the viral life cycle, RNASeq was carried out on triplicate differentiated populations of NIKS (uninfected) and NIKS16 (infected). Of the top 966 genes altered (>log2 = 1.8, 3.5-fold change) 670 genes were downregulated and 296 genes were up regulated. HPV down-regulated many genes involved in epithelial barrier function that involves structural resistance to the environment and immunity to infectious agents. For example, HPV infection repressed expression of the differentiated keratinocyte-specific pattern recognition receptor TLR7, the Langerhans cell chemoattractant, CCL20, and proinflammatory cytokines, IL1A and IL1B. However, IRF1, IFNkappa and viral restriction factors (IFIT1, 2, 3, 5, OASL, CD74, RTP4) were up-regulated. HPV infection abrogated gene expression associated with the physical epithelial barrier, including keratinocyte cytoskeleton, intercellular junctions and cell adhesion. qPCR and western blotting confirmed changes in expression of seven of the most significantly altered mRNAs. Expression of three genes showed statistically significant changes during cervical disease progression in clinical samples. Taken together, the data indicate that HPV infection manipulates the differentiating keratinocyte transcriptome to create an environment conducive to productive viral replication and egress.IMPORTANCE Human papillomavirus (HPV) genome amplification and capsid formation takes place in differentiated keratinocytes. The viral life cycle is intimately associated with host cell differentiation. Deep sequencing (RNASeq) of RNA from undifferentiated and differentiated uninfected and HPV16-positive keratinocytes showed that almost 3000 genes were differentially expressed in keratinocyte due to HPV16 infection. Strikingly, the epithelial barrier function of differentiated keratinocytes, comprising keratinocyte immune function and cellular structure, was found to be disrupted. These data provide new insights into virus-host interaction crucial for production of infectious virus and reveal that HPV infection remodels keratinocytes for completion of the virus replication cycle. PMID- 29021404 TI - Sex differences in the significance of isolated reactive treponemal chemiluminescence immunoassay results. AB - OBJECTIVES: The significance of sera with isolated reactive treponemal chemiluminescence immunoassay (IRTCIA) results is unclear. Women have this phenotype more commonly than men. Most cohorts examining this phenotype have included predominantly men and have demonstrated evidence of past or subsequently confirmed syphilis infection in a significant proportion of cases. We hypothesised that a proportion of sera with IRTCIA results would be positive on immunoblot testing and that sera from women with IRTCIA would have different results in immunoblot testing than men. METHODS: IRTCIA sera from a tertiary referral serology laboratory serving multiple clinical sites were analysed with a syphilis line immunoblot assay (LIA) and analysed by sex. Logistic regression was undertaken to assess factors associated with LIA status. Medical record review and descriptive analysis of a separate cohort of women with the IRTCIA phenotype from a single campus was also undertaken. RESULTS: Overall, 19/63 (30.1%) subjects with the IRTCIA phenotype were positive in the LIA, including 13 men and 6 women. Women were significantly less likely to have definitive results (positive or negative) than men (p=0.015). Pregnant women were less likely than non-pregnant women to have a negative LIA result (OR 0.57; p=0.03). Record review of 22 different women with IRTCIA reactivity showed that 2/22 (9.1%) had HIV and previous syphilis infection, 15/22 (68.2%) were pregnant and 3 (13.6%) had autoimmune disease. CONCLUSIONS: A significant proportion of sera with IRTCIA results on serological tests are reactive on LIA testing and some may not be false positive results. The interpretation of IRTCIA results should be undertaken in conjunction with an assessment of factors such as sex, pregnancy, a history of syphilis and other STIs and syphilis risk. PMID- 29021403 TI - Heterozygous mutations affecting the protein kinase domain of CDK13 cause a syndromic form of developmental delay and intellectual disability. AB - INTRODUCTION: Recent evidence has emerged linking mutations in CDK13 to syndromic congenital heart disease. We present here genetic and phenotypic data pertaining to 16 individuals with CDK13 mutations. METHODS: Patients were investigated by exome sequencing, having presented with developmental delay and additional features suggestive of a syndromic cause. RESULTS: Our cohort comprised 16 individuals aged 4-16 years. All had developmental delay, including six with autism spectrum disorder. Common findings included feeding difficulties (15/16), structural cardiac anomalies (9/16), seizures (4/16) and abnormalities of the corpus callosum (4/11 patients who had undergone MRI). All had craniofacial dysmorphism, with common features including short, upslanting palpebral fissures, hypertelorism or telecanthus, medial epicanthic folds, low-set, posteriorly rotated ears and a small mouth with thin upper lip vermilion. Fifteen patients had predicted missense mutations, including five identical p.(Asn842Ser) substitutions and two p.(Gly717Arg) substitutions. One patient had a canonical splice acceptor site variant (c.2898-1G>A). All mutations were located within the protein kinase domain of CDK13. The affected amino acids are highly conserved, and in silico analyses including comparative protein modelling predict that they will interfere with protein function. The location of the missense mutations in a key catalytic domain suggests that they are likely to cause loss of catalytic activity but retention of cyclin K binding, resulting in a dominant negative mode of action. Although the splice-site mutation was predicted to produce a stable internally deleted protein, this was not supported by expression studies in lymphoblastoid cells. A loss of function contribution to the underlying pathological mechanism therefore cannot be excluded, and the clinical significance of this variant remains uncertain. CONCLUSIONS: These patients demonstrate that heterozygous, likely dominant negative mutations affecting the protein kinase domain of the CDK13 gene result in a recognisable, syndromic form of intellectual disability, with or without congenital heart disease. PMID- 29021402 TI - HIV-Exposed Infants Vaccinated with an MF59/Recombinant gp120 Vaccine Have Higher Magnitude Anti-V1V2 IgG Responses than Adults Immunized with the Same Vaccine. AB - In the RV144 vaccine trial, IgG responses against the HIV envelope variable loops 1 and 2 (V1V2) were associated with decreased HIV acquisition risk. We previously reported that infants immunized with an MF59-adjuvanted rgp120 vaccine developed higher-magnitude anti-V1V2 IgG responses than adult RV144 vaccinees. To determine whether the robust antibody response in infants is due to differences in vaccine regimens or to inherent differences between the adult and infant immune systems, we compared Env-specific IgG responses in adults and infants immunized with the same MF59- and alum-adjuvanted HIV envelope vaccines. At peak immunogenicity, the magnitudes of the gp120- and V1V2-specific IgG responses were comparable between adults and infants immunized with the alum/MNrgp120 vaccine (gp120 median fluorescence intensities [FIs] in infants = 7,118 and in adults = 11,510, P = 0.070; V1V2 median MFIs of 512 [infants] and 804 [adults], P = 0.50), whereas infants immunized with the MF59/SF-2 rgp120 vaccine had higher-magnitude antibody levels than adults (gp120 median FIs of 15,509 [infants] and 2,290 [adults], P < 0.001; V1V2 median FIs of 23,926 [infants] and 1,538 [adults]; P < 0.001). Six months after peak immunogenicity, infants maintained higher levels Env-specific IgG than adults. Anti-V1V2 IgG3 antibodies that were associated with decreased HIV-1 risk in RV144 vaccinees were present in 43% of MF59/rgp120-vaccinated infants but only in 12% of the vaccinated adults (P = 0.0018). Finally, in contrast to the rare vaccine-elicited Env-specific IgA in infants, rgp120 vaccine elicited Env-specific IgA was frequently detected in adults. Our results suggest that vaccine adjuvants differently modulate gp120-specific antibody responses in adults and infants and that infants can robustly respond to HIV Env immunization.IMPORTANCE More than 150,000 pediatric HIV infections occur yearly, despite the availability of antiretroviral prophylaxis. A pediatric HIV vaccine could reduce the number of these ongoing infant infections and also prime for long-term immunity prior to sexual debut. We previously reported that immunization of infants with an MF59-adjuvanted recombinant gp120 vaccine induced higher-magnitude, potentially protective anti-V1V2 IgG responses than in adult vaccinees receiving the moderately effective RV144 vaccine. In the present study, we demonstrate that the robust response observed in infants is not due to differences in vaccine regimen or vaccine dose between adults and infants. Our results suggest that HIV vaccine adjuvants may differentially modulate immune responses in adults and infants, highlighting the need to conduct vaccine trials in pediatric populations. PMID- 29021400 TI - Human Parvovirus Infection of Human Airway Epithelia Induces Pyroptotic Cell Death by Inhibiting Apoptosis. AB - Human bocavirus 1 (HBoV1) is a human parvovirus that causes acute respiratory tract infections in young children. In this study, we confirmed that, when polarized/well-differentiated human airway epithelia are infected with HBoV1 in vitro, they develop damage characterized by barrier function disruption and cell hypotrophy. Cell death mechanism analyses indicated that the infection induced pyroptotic cell death characterized by caspase-1 activation. Unlike infections with other parvoviruses, HBoV1 infection did not activate the apoptotic or necroptotic cell death pathway. When the NLRP3-ASC-caspase-1 inflammasome-induced pathway was inhibited by short hairpin RNA (shRNA), HBoV1-induced cell death dropped significantly; thus, NLRP3 mediated by ASC appears to be the pattern recognition receptor driving HBoV1 infection-induced pyroptosis. HBoV1 infection induced steady increases in the expression of interleukin 1alpha (IL-1alpha) and IL-18. HBoV1 infection was also associated with the marked expression of the antiapoptotic genes BIRC5 and IFI6 When the expression of BIRC5 and/or IFI6 was inhibited by shRNA, the infected cells underwent apoptosis rather than pyroptosis, as indicated by increased cleaved caspase-3 levels and the absence of caspase-1. BIRC5 and/or IFI6 gene inhibition also significantly reduced HBoV1 replication. Thus, HBoV1 infection of human airway epithelial cells activates antiapoptotic proteins that suppress apoptosis and promote pyroptosis. This response may have evolved to confer a replicative advantage, thus allowing HBoV1 to establish a persistent airway epithelial infection. This is the first report of pyroptosis in airway epithelia infected by a respiratory virus.IMPORTANCE Microbial infection of immune cells often induces pyroptosis, which is mediated by a cytosolic protein complex called the inflammasome that senses microbial pathogens and then activates the proinflammatory cytokines IL-1 and IL-18. While virus-infected airway epithelia often activate NLRP3 inflammasomes, studies to date suggest that these viruses kill the airway epithelial cells via the apoptotic or necrotic pathway; involvement of the pyroptosis pathway has not been reported previously. Here, we show for the first time that virus infection of human airway epithelia can also induce pyroptosis. Human bocavirus 1 (HBoV1), a human parvovirus, causes lower respiratory tract infections in young children. This study indicates that HBoV1 kills airway epithelial cells by activating genes that suppress apoptosis and thereby promote pyroptosis. This strategy appears to promote HBoV1 replication and may have evolved to allow HBoV1 to establish persistent infection of human airway epithelia. PMID- 29021405 TI - High prevalence of high-risk HPV genotypes other than 16 and 18 in cervical cancers of Curacao: implications for choice of prophylactic HPV vaccine. AB - BACKGROUND: Curacao is a Dutch-Caribbean Island located in a high-risk area for cervical cancer.Prior to introduction of a prophylactic human papillomavirus (HPV) vaccine, knowledge of the prevalence of high-risk HPV vaccine genotypes (HPV16, 18, 31, 33, 45, 52 and 58) in cervical (pre)cancer is required. OBJECTIVE: To investigate the prevalence of HPV genotypes in invasive cervical cancers (ICC) and cervical intraepithelial neoplasia (CIN) grade 1, 2 and 3 in Curacao. METHODS: Paraffin-embedded blocks of 104 cervical cancers (89 squamous, 15 adenocarcinoma), 41 CIN3, 39 CIN2 and 40 CIN1 lesions were analysed for the presence of HPV. Sections were stained by H&E for histopathological evaluation, and DNA was extracted using proteinase K. HPV genotypes were detected using Short PCR Fragment (SPF10) PCR DNA enzyme immunoassay and a Line Probe Assay (LiPA25) . RESULTS: HPV was found in 92 (88.5%) ICC; 87 (94.6%) had a single HPV infection and 86 (93.5%) were high-risk human papillomavirus (hrHPV)-type positive.The three most common HPV types in ICC were 16 (38.5%), 18 (13.5%) and 45 (6.7%), covering 58.7%.HrHPV vaccine genotypes 16, 18, 31, 35, 45, 52 and 58 were responsible for 73.1% of ICC. For precancerous lesions, the HPV attribution was 85.4% for CIN3, 66.7% for CIN2% and 42.5% for CIN1. CONCLUSIONS: Our study, the largest in the Caribbean region in (pre)cancer, shows that the prevalence of HPV type 16 and 18 in cervical cancer is lower compared with the world population but no differences in prevalence of these two HPV types are seen in precancerous lesions.When considering HPV vaccination in Curacao, the relatively high contribution of non-HPV 16/18 genotypes in ICC should be taken into account. PMID- 29021406 TI - Whole genome sequencing of Neisseria gonorrhoeae reveals transmission clusters involving patients of mixed HIV serostatus. AB - OBJECTIVES: Prevention and control of gonorrhoea depends on understanding the nature of sexual networks and risk factors for infection. We aimed to use high resolution typing (whole genome sequencing (WGS)) of Neisseria gonorrhoeae isolates plus patient questionnaire data to gain insights into transmission patterns in a high prevalence setting. METHODS: During a 9-month period (July 2014-March 2015), patients diagnosed with gonorrhoea attending sexual health service in Brighton, UK, were invited to provide anonymised detailed information by questionnaire about risk factors for infection. Questionnaire data plus WGS data from cultured isolates were analysed to yield information about sexual networks and risk factors for infection. RESULTS: 104/149 individuals who consented to participate in the study were culture positive. 97/104 (93%) were male. 80 self-reported to be men who have sex with men (MSM). 35/104 (34%) of patients were HIV positive. 51/104 (49%) individuals reported using geosocial networking applications to facilitate contact. Sex under the influence of drugs was reported by 16/34 (46%) of HIV-positive MSM, 17/41 (41%) of HIV-negative MSM and 5/15 (31%) of heterosexuals. WGS data were available for 100 isolates from 83 patients. 55 isolates (66%) belonged to genetically related subtypes involving one or more patients, who could be plausibly linked through recent direct or indirect transmission. Four transmission clusters containing 3-12 individuals were composed of MSM of mixed HIV serostatus. CONCLUSIONS: We show that data obtained from WGS of N. gonorrhoeae and enhanced epidemiological data obtained from patient questionnaires are mutually supportive and reveal insights into sexual networks. Our findings suggest that serosorting may have declined as a practice and indicate the importance of designing public health interventions that target infection risks associated with recreational drug use and contact made using geosocial networking applications. PMID- 29021407 TI - Antimicrobial susceptibility profile of Neisseria gonorrhoeae isolated in Cotonou, Benin (2015-2017). PMID- 29021409 TI - HIV-1 viral load and resistance in genital secretions in patients taking protease inhibitor-based second-line therapy in Africa. AB - BACKGROUND: HIV is transmitted primarily through sexual intercourse, and the objective of this study was therefore to assess whether there is occult viral replication and resistance in genital secretions in patients on protease inhibitor (PI)-based second-line therapy. METHODS: HIV-infected adults taking ritonavir-boosted lopinavir with either two nucleoside reverse transcriptase inhibitors (NRTIs), raltegravir or as monotherapy for 96 weeks, were enrolled at seven clinical sites in Uganda. Viral load (VL) was measured in cervico-vaginal secretions or semen and in a corresponding plasma sample. Genotypic resistance was assessed in genital secretion samples and plasma samples. Results were compared between compartments and with the plasma resistance profile at first line failure. RESULTS: Of the 111 participants enrolled (91 female, 20 male), 16 (14%) and 30 (27%) had VL >1,000 and >40 copies/ml, respectively, in plasma; 3 (3%) and 23 (21%) had VL >1,000 copies/ml and >40 copies/ml, respectively, in genital secretions. There was 74% agreement between plasma and genital secretion VL classification above/below 40 copies/ml threshold (kappa-statistic =0.29; P=0.001). RT mutations (both NRTI and non-nucleoside reverse transcriptase inhibitor) were detected in genital secretions in four patients (similar profile to corresponding plasma sample at first-line failure) and PI mutations were detected in two (one polymorphism with no impact on resistance; one with high level PI resistance). CONCLUSIONS: High level (>1,000 copies/ml) viral replication and development of new RT or PI resistance in the genital compartment were rare. The risks of transmission arising from resistance evolution in the genital compartment are likely to be low on PI-based second-line therapy. PMID- 29021410 TI - William Jackson ('Jack') Schull (1922-2017). PMID- 29021408 TI - Repeat syphilis has a different immune response compared with initial syphilis: an analysis of biomarker kinetics in two cohorts. AB - OBJECTIVE: We aimed to asses if there are differences in the clinical presentation and immune response of repeat as compared with initial syphilis. METHODS: Prospective study: we prospectively recruited all patients with a new diagnosis of syphilis and tested their plasma for a range of cytochemokines and rapid plasma reagin (RPR) at baseline pretreatment and 6 months following therapy. Retrospective study: we compared RPR assay response kinetics between initial and repeat syphilis in persons attending our HIV/STI clinic from 1993 to 2016. RESULTS: Prospective study: a total of 91 individuals, 36 with initial syphilis and 55 with repeat syphilis, were included in the study. At baseline visit, those with initial syphilis were more likely to be symptomatic and have higher levels of interleukin-10 than repeaters. At baseline, median RPR titres were higher in the repeat than the initial infection groups. Repeaters were less likely than those with initial infections to serorevert to a negative RPR and be serofast (<4-fold RPR titre decline) at 6 months.Retrospective study: syphilis was diagnosed in 1027/43 870 individuals tested. At diagnosis, repeaters had higher RPR titres and a stepwise increase in RPR titre with number of syphilis episodes. They had a different RPR test response kinetic: they were less likely to be serofast and to serorevert than initial syphilis at 6 and 12 months. No individuals with four or more previous episodes of syphilis seroreverted. CONCLUSION: Repeat syphilis has a different clinical presentation and immunological response to initial infection. PMID- 29021411 TI - Biomaterials for corneal bioengineering. AB - Corneal transplantation is an important surgical treatment for many common corneal diseases. However, a worldwide shortage of tissue from suitable corneal donors has meant that many people are not able to receive sight-restoring operations. In addition, rejection is a major cause of corneal transplant failure. Bioengineering corneal tissue has recently gained widespread attention. In order to facilitate corneal regeneration, a range of materials is currently being investigated. The ideal substrate requires sufficient tectonic durability, biocompatibility with cultured cellular elements, transparency, and perhaps biodegradability and clinical compliance. This review considers the anatomy and function of the native cornea as a precursor to evaluating a variety of biomaterials for corneal regeneration including key characteristics for optimal material form and function. The integration of appropriate cells with the most appropriate biomaterials is also discussed. Taken together, the information provided offers insight into the requirements for fabricating synthetic and semisynthetic corneas for in vitro modeling of tissue development and disease, pharmaceutical screening, and in vivo application for regenerative medicine. PMID- 29021412 TI - Postoperative Headache after Undergoing Acoustic Neuroma Surgery via the Retrosigmoid Approach. AB - To estimate the duration of postoperative headache after surgery for acoustic neuroma and the effects of age, sex, tumor size, extent of tumor resection, type of skin incision, surgical duration, hearing preservation, and postoperative facial nerve palsy. This retrospective review analyzed clinical data from 97 patients who had undergone surgery for unilateral acoustic neuroma via the retrosigmoid approach >1 year previously. We investigated whether patients had headache at hospital discharge and during attendance at outpatient clinics. We classified postoperative headache as grade 0 (no headache), 1 (tolerable headache without medication), or 2 (headache requiring medication). The period of headache was defined as the interval in days between surgery and achievement of grade 0. The period of medication for headache was defined as the interval in days between surgery and achievement of grade 0 or 1. Kaplan-Meier analysis revealed median durations of medication and headache of 81 and 641 days, respectively. Headache was cured significantly earlier in patients who underwent surgery using a C-type skin incision (P < 0.001). Headache persisted significantly longer among patients who underwent a shorter surgical procedure (P < 0.02). Multivariate analysis confirmed the type of skin incision as a factor independently associated with duration of postoperative headache. Postoperative headache was cured in the majority of patients within about 2 years after surgery. The C-type skin incision is likely beneficial for reducing the duration of postoperative headache, although headache persisted in a small number of patients. PMID- 29021414 TI - Development of bioassay system for evaluation of materials for personal protective equipment (PPE) against toxic effects of ionizing radiations. AB - Health effects caused by ionizing radiations raise considerable concern among general public and radiation workers. To estimate ability of personal protective equipment (PPE) materials that reduce toxic effects of ionizing radiations, we developed an experimental bioassay system using Chinese Hamster V79 cells. The system developed here distinguished the biological effectiveness of X-ray that was significantly affected by elements composed of shielding materials. Survival of the cells exposed to sub-lethal dose of X-ray was enhanced more than 2 times when the X-ray was filtrated by a lead plate. Also filtration of the X-ray with a tungsten plate enhanced the cell survival more than three times. These results suggested the colony assay system developed here was useful for examination of the biological effectiveness of X-ray and the ability of PPE materials reducing the toxic effects caused by ionizing radiations. PMID- 29021413 TI - CyberKnife Stereotactic Radiosurgery and Hypofractionated Stereotactic Radiotherapy As First-line Treatments for Imaging-diagnosed Intracranial Meningiomas. AB - Definitive radiotherapy is an important alternative treatment for meningioma patients who are inoperable or refuse surgery. We evaluated the efficacy and toxicity of CyberKnife-based stereotactic radiosurgery (SRS) and hypofractionated stereotactic radiotherapy (hSRT) as first-line treatments for intracranial meningiomas that were diagnosed using magnetic resonance imaging (MRI) and/or computed tomography (CT). Between February 2005 and September 2015, 41 patients with intracranial meningiomas were treated with CyberKnife-based SRS or hSRT. Eleven of those tumors were located in the skull base. The median tumor volume was 10.4 ml (range, 1.4-56.9 ml). The median prescribed radiation dose was 17 Gy (range, 13-20 Gy to the 61-88% isodose line) for SRS (n = 9) and 25 Gy (range, 14 38 Gy to the 44-83% isodose line) for hSRT (n = 32). The hSRT doses were delivered in 2 to 10 daily fractions. The median follow-up period was 49 months (range, 7-138). The 5-year progression-free survival rate (PFS) for all 41 patients was 86%. The 3-year PFS was 69% for the 14 patients with tumor volumes of >=13.5 ml (30 mm in diameter) and 100% for the 27 patients with tumor volumes of <13.5 ml (P = 0.031). Grade >2 toxicities were observed in 5 patients (all of them had tumor volumes of >=13.5 ml). SRS and hSRT are safe and effective against relatively small (<13.5 ml) meningiomas. PMID- 29021415 TI - Cerebrovascular/cardiovascular diseases and mental disorders due to overwork and work-related stress among local public employees in Japan. AB - In Japan, overwork-related disorders occur among local public employees as well as those in private businesses. However, to date, there are no studies reporting the state of compensation for cerebrovascular/cardiovascular diseases (CCVD) and mental disorders due to overwork or work-related stress among local public employees in Japan over multiple years. This report examined the recent trend of overwork-related CCVD and mental disorders, including the incidence rates of these disorders, among local public employees in Japan from the perspective of compensation for public accidents, using data from the Japanese Government and relevant organizations. Since 2000, compared to CCVD, there has been an overall increase in the number of claims and cases of compensation for mental disorders. Over half of the individuals receiving compensation for mental disorders were either in their 30s or younger. About 47% of cases of mental disorders were compensated due to work-related factors other than long working hours. The incidence rate by job type was highest among "police officials" and "fire department officials" for compensated CCVD and mental disorders cases, respectively. Changes in the trend of overwork-related disorders among local public employees in Japan under a legal foundation should be closely monitored. PMID- 29021416 TI - Thermal comfort sustained by cold protective clothing in Arctic open-pit mining-a thermal manikin and questionnaire study. AB - Workers in the Arctic open-pit mines are exposed to harsh weather conditions. Employers are required to provide protective clothing for workers. This can be the outer layer, but sometimes also inner or middle layers are provided. This study aimed to determine how Arctic open-pit miners protect themselves against cold and the sufficiency, and the selection criteria of the garments. Workers' cold experiences and the clothing in four Arctic open-pit mines in Finland, Sweden, Norway and Russia were evaluated by a questionnaire (n=1,323). Basic thermal insulation (Icl) of the reported clothing was estimated (ISO 9920). The Icl of clothing from the mines were also measured by thermal manikin (standing/walking) in 0.3 and 4.0 m/s wind. The questionnaire showed that the Icl of the selected clothing was on average 1.2 and 1.5 clo in mild (-5 to +5 degrees C) and dry cold (-20 to -10 degrees C) conditions, respectively. The Icl of the clothing measured by thermal manikin was 1.9-2.3 clo. The results show that the Arctic open-pit miners' selected their clothing based on occupational (time outdoors), environmental (temperature, wind, moisture) and individual factors (cold sensitivity, general health). However, the selected clothing was not sufficient to prevent cooling completely at ambient temperatures below -10 degrees C. PMID- 29021417 TI - Miniaturized Leadless Cardiac Pacemakers - Can They Overcome the Problems With Transvenous Pacing Systems? PMID- 29021418 TI - Chronic Obstructive Pulmonary Disease and Atherosclerosis - Warning From the Hisayama Study. PMID- 29021419 TI - What Should Be Generalized Diagnostic Markers for Peripartum Cardiomyopathy? PMID- 29021420 TI - Relationships between neighborhood attributes and subjective well-being among the Chinese elderly: Data from Shanghai. AB - It has been hypothesized that subjective well-being (SWB) is determined by a combination of individual characteristics, social environment, and physical environment. However, few studies have simultaneously examined the relationships of the social and physical attributes of a neighborhood with SWB. Accordingly, the present study aimed to examine these relationships among Chinese elders. A total of 2,719 elders aged 60 years or older were recruited from 47 neighborhoods in the Xinhua subdistrict of Shanghai by two-stage stratified random sampling and interviewed between July and September 2014. The social and physical attributes of each neighborhood were assessed using validated and psychometrically tested measures. The Chinese version of the international Personal Wellbeing Index was used to assess SWB. Control variables included sex, age, marital status, education level, years living in the neighborhood, self-rated health, chronic conditions, and leisure-time physical activity. Multilevel linear regression analysis was conducted to explore whether social and physical attributes were associated with SWB. The average level of SWB was 74.2 +/- 15.7% of the scale maximum. After controlling for individual covariates, individual-level social cohesion and social interaction were positively correlated with SWB, and both individual-level and neighborhood-level aesthetic quality was positively correlated with SWB. In conclusion, both social and physical attributes of neighborhoods were associated with SWB among Chinese elderly. These findings suggest that creating aesthetic and cohesive neighborhoods may encourage Chinese elders to participate in social activities and promote their SWB. PMID- 29021421 TI - Indication for surgical resection in patients with hepatocellular carcinoma with major vascular invasion. AB - Major portal vein invasion (MVI) by hepatocellular carcinoma (HCC) carries an extremely poor prognosis. Our aim was to clarify the indications of hepatic resection in the presence of MVI by HCC. Between 2001 and 2015, 1,306 patients undergoing primary treatment for HCC were analyzed (866 hepatic resections and 440 transarterial therapies). Significant prognostic factors were identified by retrospectively analyzing tumor status, liver function and treatment. Overall survival was compared in terms of the degree of vascular invasion and treatment. The 5-year survival rates according to the degree of vascular invasion (Vp) were Vp0: 51.9%, Vp1: 33.0%, Vp2: 16.7%, Vp3: 21.8%, and Vp4: 0%, respectively. Overall survival (OS) did not differ significantly between patients with Vp3 and Vp4 MVI (p = 0.153). Median survival following hepatic resection of Vp3 cases was significantly better than that for Vp4 cases (1,913 vs. 258 days, p = 0.014), while OS following transarterial therapy was not significantly different (164 vs. 254 days in Vp3 vs. Vp4, p = 0.137). Multivariate analysis revealed hepatic resection (Odds: 2.335 [95%CI: 1.236-4.718], p = 0.008) and multiple tumors (1.698 [1.029-2.826], p = 0.038) as independent predictors of survival. Hepatic resection in HCC patients with MVI should be indicate in patients with Vp3 invasion. PMID- 29021422 TI - Non-linear association between alcohol and incident frailty among community dwelling older people: A dose-response meta-analysis. AB - A recent systematic review and meta-analysis study suggested that higher alcohol consumption is associated with lower risks for frailty. However the apparent protective effect may not be true because of some limitations. Therefore we further explored potential linear and non-linear associations using a two-stage dose-response meta-analysis. Restricted cubic splines were applied with three fixed knots at percentiles (10%, 50%, and 90%). A two-stage dose-response meta analysis showed a significant non-linear association (p for non-linearity < 0.001); incident frailty risk decreased until around 15 g/day of alcohol consumption and increased thereafter. This suggests that while moderate alcohol consumption is associated with a lower risk of frailty, at higher consumption levels this apparent protect effect is lost. Given these findings, non-linear associations should be considered in future research on alcohol and frailty. PMID- 29021423 TI - Should We Include a Defibrillator for All Cardiac Resynchronization Therapy? - Comparison of Cardiac Resynchronization Therapy Without and With Defibrillation. PMID- 29021424 TI - Detection and molecular characterization of equine infectious anemia virus in Mongolian horses. AB - The genetic characterization and actual prevalence of EIAV in Mongolian horse in the disease endemic region is currently unknown. Here, 11 of 776 horse serum samples from four Mongolian provinces tested positive on agar gel immunodiffusion test. Genomic DNA extracted from all seropositive samples was subjected to nested PCR assay. Among these, three samples tested positive with nested PCR assay and were identified by sequencing analysis based on long termination repeat and tat gene of the virus. Two of the three sequences were identical, with 94.0% identity with the third. These two independent Mongolian EIAV sequences were retained functional motifs, with no dramatic changes but some variability in the U5 region; they were clustered with genotypes from European countries but not with those from China, U.S.A., or Japan. PMID- 29021425 TI - A cat with suspected laryngeal metastasis with mucosal irregularity resulting from apocrine/salivary gland adenocarcinoma in the head. AB - A 16-year-old castrated male mongrel cat presented with swelling under the left pinna and a 3 -month history of voice change. Laryngeal endoscopy revealed circumferential oedema around the arytenoid cartilages and hypersecretion of saliva. Histopathological examination of the mass around the left ear canal was considered the primary lesion that originated from cutaneous apocrine adenocarcinoma or parotid gland adenocarcinoma, and it metastasized to the larynx, lung and medial retropharyngeal lymph nodes. This report provides new insights into feline laryngeal diseases which could result in laryngeal metastasis with slight mucosal irregularity alone and without obvious radiographic abnormalities. Therefore, histopathological examination should be performed when a cat presents clinical signs such as stridor, dysphonia or voice change without any mass-forming laryngeal lesion. PMID- 29021427 TI - Petrified Ear Auricles with Isolated Adrenocorticotropic Hormone Deficiency. PMID- 29021426 TI - Natural larval Echinococcus multilocularis infection in a Norway rat, Rattus norvegicus, captured indoors in Hokkaido, Japan. AB - Natural infection with larval Echinococcus multilocularis was recognized in one of eight Norway rats, Rattus norvegicus, caught indoors in 2009 in Ebetsu, Hokkaido, northern Japan. Cystic lesions were found in the right median and lateral lobes of the liver, with numerous alveolar cysts in the periphery of the lesions. Protoscolices were formed within large cysts. The laminated layers of the cysts were positive for PAS staining. Nested PCR using the primers specific for Taenia mitochondrial 12S rDNA yielded a 250-bp product, and the sequence of the PCR product matched that of E. multilocularis isolates from Hokkaido and Germany. This is the third natural alveolar hydatidosis in R. norvegicus in Japan. PMID- 29021428 TI - Changes in the Clinical Features and Long-term Outcomes of Colonic Diverticulitis in Japanese Patients. AB - Objective The purpose of this study was to investigate whether changes occurred in the clinical features of acute colonic diverticulitis (ACD) over a period of 10 years, to estimate the long-term probability of disease recurrence and to investigate whether it could be treated in an outpatient setting. Methods Between January 1998 and January 2009, 488 ACD patients were diagnosed and treated in Saiseikai Central Hospital, Tokyo. The diagnoses were made by ultrasonography (US) and/or CT. We investigated the time-dependent changes in the characteristics of patients with ACD, and we used the Kaplan-Meier method to estimate the cumulative probability of recurrence, based on information from a questionnaire. Results The percentage of patients who were diagnosed with left-sided ACD significantly increased over time in comparison to those with right-side disease (4% in 1998, 36% in 2009). Patients with left-sided ACD were significantly older and were diagnosed at a more advanced disease stage than those with right-sided ACD. Among the 212 ACD patients who responded to the questionnaire, the cumulative probability of recurrence in 125 patients with no history of ACD at 2.9, 5.9 and 10.1 years was 16.0%, 20.1% and 26.2%, respectively. The probability of recurrence in patients with right-sided and left-sided ACD did not differ to a statistically significant extent. In addition, outpatient treatability in patients with left-sided to right-sided ACD did not differ to a statistically significant extent (66.6% vs. 70.1%). Conclusion The ratio of left-sided to right sided ACD was found to have increased over the past decade. Left-sided ACD patients were older and their incidence of complications was higher in comparison to right-sided patients; however, the rate of recurrence and outpatient treatability in patients with left-sided and right-sided ACD did not differ to a statistically significant extent. PMID- 29021429 TI - Sclerosing Esophagitis with IgG4-positive Plasma Cell Infiltration. AB - The patient was a 76-year-old woman who had noticed slight difficulty in swallowing in the 3 years prior to this presentation. Her dysphagia progressed while she was hospitalized following cervical cancer surgery. Esophagogastroduodenoscopy and an esophagram showed circumferential erosion and a stricture of the thoracic esophagus. Esophageal resection was performed; the resected specimens showed a stricture and wall thickening. Histologically, transmural hyperplasia, which consisted of inflammatory granulation tissue with the abundant infiltration of IgG4-positive plasma cells and lymphocytes, was observed. The patient was diagnosed with probable IgG4-related disease. IgG4 related esophageal disease presenting as esophageal lesions alone is a very rare condition. PMID- 29021430 TI - Crizotinib-induced Rectal Perforation with Abscess. AB - An 86-year-old Japanese man was diagnosed with stage IV lung adenocarcinoma. The patient was treated with crizotinib after echinoderm microtubule-associated protein-like 4 (EML4)-anaplastic lymphoma kinase (ALK) rearrangement was detected from his pleural effusion. He subsequently developed abdominal pain and rebound tenderness in the right lower abdomen. Contrast-enhanced abdominal CT showed a low-density area in the abdominal cavity. The size of the abscess was decreased by drainage and the administration of antibiotics. Fistulography revealed a fistula from the rectum to the abscess, and a diagnosis of lower intestinal tract perforation with abscess formation was made. Crizotinib was discontinued and treatment with alectinib was initiated. The patient remains under treatment as an outpatient at our department without adverse effects. PMID- 29021431 TI - Tocilizumab-resistant TAFRO Syndrome Complicated by Type II Respiratory Failure. AB - A 66-year-old man with a several year history of thrombocytopenia, pleural effusion and ascites, anasarca, and organomegaly presented with general fatigue, appetite loss, dyspnea with type II respiratory failure. The precise history of the patient and the re-evaluation of lymph node and bone marrow biopsies conducted by the previous physician indicated TAFRO syndrome. The patient's laboratory data improved for a year with tocilizumab, but then worsened to the point that the patient required artificial ventilation due to the deterioration of type II respiratory failure. The replacement of tocilizumab with rituximab yielded a steady improvement, but it was necessary to address the patient's persistent respiratory failure. Peripheral nerve disorder might have been involved with the patient's respiratory failure. PMID- 29021432 TI - Prediction of Disseminated Intravascular Coagulation by Liver Function Tests in Patients with Japanese Spotted Fever. AB - Objective Cases of Japanese spotted fever (JSF) are sometimes complicated by disseminated intravascular coagulation (DIC) with an abnormal liver function, resulting in unfavorable outcomes. The aim of the present study was to clarify the correlation between liver function test results and DIC scores. Methods Twenty patients diagnosed with JSF between April 2010 and April 2014 were enrolled. Age, gender, disturbance of consciousness, body temperature, pulse rate, presence of diffuse erythema, eschar and swelling of lymph nodes, laboratory test results at the time of initial presentation such as blood cell count, C-reactive protein, liver function, renal function and blood coagulation and fibrinolysis, maximum Japanese Association for Acute Medicine (JAAM) DIC score during the course of JSF, treatment and the prognosis were retrospectively reviewed. Results The median age of the patients (8 men, 12 women) was 68.3 years. There were significant differences in the alkaline phosphatase (ALP) and rothrombin time international normalized ratio (PT-INR) between the DIC and non DIC groups using Mann-Whitney's U test. A multiple logistic regression analysis showed that the ALP and blood urea nitrogen (BUN) levels at the time of initial presentation were independent predictors of the occurrence of DIC. Conclusion We should pay special attention to JSF patients showing high levels of ALP at the initial presentation, since such patients may have a higher likelihood of developing DIC over the course of JSF and unfavorable outcomes than those with lower levels. PMID- 29021433 TI - Secondary Syphilis with Pulmonary Involvement. AB - A 39-year-old Japanese man presented to our hospital complaining of left chest pain and rash on the hands and feet. Plain thoracic computed tomography (CT) revealed multiple nodular shadows in the left lower lobe of the lung. A diagnosis of secondary syphilis was made based on the appearance of the rash and positive serologic tests for syphilis. The patient was started on amoxicillin but was switched to minocycline due to amoxicillin-induced rash on both forearms. Thoracic CT after five months of treatment revealed that the multiple lung nodular shadows had contracted, and secondary syphilis with pulmonary involvement was diagnosed. PMID- 29021434 TI - Effectiveness of Bare Metal Stent Implantation for the Treatment of Coronary Artery Aneurysm: A Multimodality Imaging Evaluation. AB - Coronary artery aneurysm (CAA) after sirolimus-eluting stent (SES) implantation is one of the most troublesome problems associated with first-generation drug eluting stents. However, the natural course and standard therapy of CAA has been unknown. A 49-year-old man underwent SES implantation for the left anterior descending artery. Follow-up coronary angiography (CAG) revealed CAA in the SES. We performed bare metal stent (BMS) implantation for treatment of CAA. Ten months after the BMS implantation, the size of the CAA had diminished, and a very thin layer of endothelium on the BMS was observed by optical coherence tomography. CAG assessment revealed that the blood stream of the CAA had been obstructed. We herein report a case of CAA after SES implantation with eight years of follow-up and the findings of a multimodality imaging evaluation. PMID- 29021435 TI - Hyponatremia with Loss of High Signal Intensity in the Posterior Pituitary Lobe on T1-weighted Magnetic Resonance Imaging. AB - Herein, we report on an 82-year-old woman who presented with anorexia. The patient had hyponatremia with preserved urinary osmotic pressure. T1-weighted magnetic resonance imaging (MRI) showed a lack of high signal intensity (SI) in the posterior pituitary lobe. Based on the patient's high levels of N-terminal prohormone of brain natriuretic peptide (NT-proBNP), heart failure was suspected. The heart failure may have caused arginine vasopressin (AVP) secretion. The depletion of AVP secretory granules may therefore cause the posterior pituitary gland to disappear on T1-weighted MRI. PMID- 29021436 TI - Multiple Myeloma Presenting with Autoimmune Autonomic Ganglionopathy. AB - Autoimmune autonomic ganglionopathy is an autonomic disorder that occurs as a symptom of paraneoplastic neurological syndrome. To date, there have been no reports on multiple myeloma with autoimmune autonomic ganglionopathy. A 37-year old Japanese woman suffered from orthostatic hypotension was diagnosed with multiple myeloma (IgG kappa type), and a serological examination revealed the presence of anti-ganglionic nicotinic acetylcholine receptor (anti-gAChR) antibodies. She was treated for multiple myeloma, as a result, the autonomic disturbance improved and her anti-gAChR antibody titer decreased to undetectable levels, despite the fact that she only achieved a partial remission of multiple myeloma. Treatment for multiple myeloma may improve autoimmune autonomic ganglionopathy. PMID- 29021437 TI - A Systematic Review of the Effectiveness of Antianxiety and Antidepressive Agents for Functional Dyspepsia. AB - Objective Functional dyspepsia (FD) is defined as persistent or recurrent pain or discomfort centered in the upper abdomen without organic disease. Psychosocial factors have been proposed as an important element in the pathophysiology of FD. Therefore, psychotropic agents having antianxiety or antidepressive action are expected to alleviate FD. We previously reported on the treatment of FD using such agents in a systematic review, wherein the effectiveness of the agents on FD was suggested, although there were several limitations. We searched for articles on this subject after our systematic review and re-reviewed them systematically. Methods Articles were searched for in MEDLINE from 2003 to 2014 using terms related to antianxiety or antidepressive agents. Clinical studies in which the effectiveness of such agents was clearly stated were selected from the retrieved articles. The newly selected and previously selected studies were combined, and statistical analyses were carried out. Results Nine studies were selected. Five of the studies indicated a significant symptomatic improvement using psychotropic drugs. A statistical analysis suggested a significant treatment effect of psychotropic agents having antianxiety or antidepressive action [pooled relative risk (PRR), 0.72; 95% confidence interval (95% CI), 0.52-0.99; p=0.0406] but did not show a significant benefit of treatment with agents having an antidepressive action alone (PRR, 0.63; 95% CI, 0.38-1.03; p=0.0665). Conclusion Our systematic review suggested that psychotropic drugs having antianxiety and antidepressive actions as a whole might be effective in alleviating FD symptoms, whereas those having only antidepressive action were not effective. PMID- 29021440 TI - Meningococcal Bursitis. PMID- 29021438 TI - Factors for Predicting Outcomes among Non-HIV Patients with Pulmonary Tuberculosis. AB - Objective Onodera's Prognostic Nutritional Index (PNI), determined as "10* albumin (g/dL) + 0.005* lymphocyte count (/MUL)," was originally designed to determine the risk of complications following gastrointestinal surgery. This single-center, retrospective observational study was designed to investigate whether or not the PNI can predict the treatment outcome. Methods We consecutively reviewed HIV-negative pulmonary tuberculosis adults in an isolation ward. Most patients were being treated with standard three- or four-drug regimens. Patients were discharged after consecutive negative smears/cultures were confirmed. The risk of all-cause death was assessed using a multivariable Cox proportional hazard model and a log-rank trend test. Results During the observation period, we observed 371 consecutive patients with a median age of 72 (interquartile range [IQR]: 54-82) years. In our cohort, 295 (79.5%) patients were discharged alive, and 76 (20.5%) died in-hospital. Patients who died in hospital had a lower PNI [median 21.2 (IQR: 18.5-25.9)] than those who were discharged alive [median 35.1 (IQR: 28.0-43.3); p<0.001]. The area under the receiver operating characteristic curve was 0.87. After dividing the patients based on the baseline PNI quartile, those patients with a lower PNI showed a poorer survival than those with a higher PNI (log-rank trend p<0.001). After adjusting for other baseline variables, the baseline PNI was still associated with in-hospital death with a hazard ratio of 0.86 (95% confidence interval: 0.82 0.91, p<0.001). Conclusion Our results showed that a low PNI was clearly related to a poor survival prognosis in smear-positive HIV-negative pulmonary tuberculosis inpatients. PMID- 29021439 TI - Relationship between Bath-related Deaths and Low Air Temperature. AB - Objective Bath-related sudden cardiac arrests occur frequently in Japan. Although previous studies have reported that most fatal events occurr in winter, the reason why such events exhibit a seasonal variation has not been elucidated. In this study, we hypothesized that the occurrence of bath-related deaths was correlated with a low air temperature. Methods This prospective cross-sectional observational study was conducted in the Tokyo Metropolitan area between October 2012 and March 2013. Data were collected for all cases involving the activation of the emergency medical system because of an accident or acute illness related to bathing that occurred in Tokyo during the study period. In particular, elderly (>=65 years) cardiac arrest victims who had been found in a bathtub filled with water were enrolled. The relationship between the daily number of cardiac arrest events and the lowest daily air temperature in Tokyo was studied using a nonlinear regression model. Results A total of 3,624 bath-related events were registered in this study. Among these events, 1,081 deaths of elderly individuals who had been found in a bathtub filled with water were recorded. A close correlation was observed between the daily number of events and the lowest daily air temperature. This correlation was described by the following equation: y=8.38e-0.07x, where y was the daily number of cardiac arrests and x was the lowest daily air temperature. Conclusion A low air temperature was closely correlated with the occurrence of bath-related cardiac arrest. PMID- 29021441 TI - Steakhouse Syndrome in Myotonic Dystrophy. AB - A 70-year-old man with myotonic dystrophy (MD) showed repetitive vomiting and decreased food ingestion. These symptoms were caused by acute mass of steak impaction occluding the esophagus, known as "steakhouse syndrome," which may have occurred in response to esophageal functional changes following gastrointestinal involvement due to MD pathology. The occluding food was successfully removed endoscopically, and his symptoms resolved without relapse. Our case suggests that MD patients can present with "steakhouse syndrome" due to bolus food impaction occluding the esophagus as one of their gastrointestinal manifestations, which underscores the need for its consideration in MD patients presenting with similar symptoms. PMID- 29021442 TI - The Relationship between the Serum Oxytocin Levels, Disease Activity, the ADLs and the QOL in Patients with Rheumatoid Arthritis. AB - Objective To investigate the factors associated with depression, including the serum oxytocin (OXT) levels, disease activity, activities of daily living (ADLs) and quality of life (QOL), and their effects on rheumatoid arthritis (RA). Methods This study included 42-RA-patients. We measured the following variables before and after 6 months of treatment with biological disease-modifying antirheumatic drugs (bDMARDs): the baseline characteristics (including age, sex, disease duration, smoking, and body mass index), the doses of prednisolone and methotrexate, the serum level of matrix metalloprotease-3, the erythrocyte sedimentation rate and the C-reactive protein level. The disease activity of RA was assessed using the Simplified Disease Activity Index (SDAI), depression was assessed using the Hamilton Depression Rating Scale (HAM-D), the ADLs were assessed using the Health Assessment Questionnaire disability index and the QOL was assessed using the Short Form (SF)-36. The serum OXT levels were determined using an enzyme-linked immunosorbent assay. Results The HAM-D score was significantly correlated with the SDAI, and the mental component summary score of the SF-36. However, the serum OXT levels were not correlated with the HAM-D score. The serum OXT levels before and after bDMARDs treatment did not differ to a statistically significant extent, regardless of the presence of depression. Although the differences in the serum levels of OXT were observed prior to the initiation of treatment, there was no gender difference after treatment. Conclusion Although RA complicated by depression may be related to the following high disease activity, a poor QOL and poor ADLs, the serum OXT levels were not directly correlated. PMID- 29021443 TI - Phalangeal Microgeodic Syndrome in a Patient with Systemic Lupus Erythematosus. AB - We herein report a woman in her 50s with systemic lupus erythematosus (SLE) who developed swelling and pain in her fingers; the symptoms were more prominent in winter. Magnetic resonance imaging (MRI) revealed bone edema in the phalanges of both hands, which was compatible with phalangeal microgeodic syndrome (PMS). This is the first reported case of PMS in a patient with SLE and suggests that performing MRI should be considered for patients with SLE in order to assess the nature of finger symptoms and signs more precisely. PMID- 29021444 TI - Recurrent Kikuchi-Fujimoto Disease Successfully Treated by the Concomitant Use of Hydroxychloroquine and Corticosteroids. AB - Kikuchi-Fujimoto disease (KFD) is a benign disease of unknown etiology characterized by lymphadenopathy and a fever. For the majority of patients with KFD, the course is self-limited; however, the optimum method of managing recurrent cases has not yet been established. We herein report a case of a 42 year-old Japanese woman with KFD (confirmed by a lymph node biopsy). Although high-dose prednisolone (PSL) rapidly induced remission, she experienced four recurrences on treatment tapering. Concomitant use of hydroxychloroquine (HCQ) with low-dose PSL induced continuous remission. This is the first case to suggest the effectiveness of HCQ for recurrent KFD in a Japanese patient. PMID- 29021445 TI - Liver Abscess and Portal Vein Thrombosis Due to Ileal Diverticulitis Mediated by Barium Fluoroscopy. AB - We report a case of liver abscess and portal vein thrombosis, which occurred due to diverticulitis at the terminal ileum in a 59-year-old man. The patient underwent a barium fluoroscopic examination 1 month before presenting to our hospital. He also showed liver dysfunction due to thrombosis at the superior mesenteric and portal veins. His inflammation gradually subsided after the initiation of treatment, but the recovery was not sufficient. Thus, surgery was performed. The patient condition improved after surgery and he was discharged. Barium examinations are relatively safe, but can sometimes cause severe adverse effects in patients with certain risk factors, and an appropriate diagnosis and treatment are necessary when symptoms appear. PMID- 29021447 TI - Acute Arthritis of the Fingers in an Elderly Woman. PMID- 29021446 TI - Nephrotic Syndrome and a Retroperitoneal Mass: A Case Report of a Patient with Recurrent Invasive Thymoma. AB - A 68-year-old man was admitted to our hospital to undergo an examination for nephrotic syndrome while concurrently complicated with recurrent thymoma in the parietal pleura and retroperitoneum. He had been diagnosed with invasive thymoma and had undergone thymo-thymectomy seven years previously. Based on the renal biopsy findings, his nephrotic syndrome was ascribed to minimal change disease. He was treated with corticosteroid monotherapy, which resulted in complete remission six months later, despite the fact that the recurrent thymoma remained. The role of thymoma in the pathogenesis of paraneoplastic glomerulopathy and the therapeutic concerns that emerged in this case are also discussed. PMID- 29021448 TI - Additional Octreotide Therapy to Sirolimus Achieved a Decrease in Sirolimus refractory Chylous Effusion Complicated with Lymphangioleiomyomatosis. AB - Recently, sirolimus, an inhibitor of mammalian target of rapamycin, was reported to decrease chylous effusion in patients with lymphangioleimyomatosis (LAM). We herein report a case of a 34-year-old woman with LAM who developed refractory chylothorax and chylous ascites during sirolimus therapy. In this case, to reduce chylous effusion, we administered octreotide, which is often used to control postoperative chylous effusion, in addition to the sirolimus therapy. This combination therapy reduced the chylothorax and chylous ascites. For patients with LAM, octreotide therapy in addition to sirolimus may be effective for treating sirolimus-refractory chylous effusion. PMID- 29021449 TI - Diffuse Intestinal Ganglioneuromatosis Showing Multiple Large Bowel Ulcers in a Patient with Neurofibromatosis Type 1. AB - A 67-year-old Japanese man with neurofibromatosis type 1 underwent right hemicolectomy owing to abscess formation around the cecum. A pathological analysis revealed diffuse intestinal ganglioneuromatosis in the cecum and colon. Colonoscopy performed eight months after hemicolectomy revealed multiple ulcers throughout the colon and rectum. The colorectal ulcers failed to respond to conservative treatment and ultimately required surgical resection. Diffuse ganglioneuromatosis was observed again in the resected specimen. This report illustrates a rare manifestation of diffuse intestinal ganglioneuromatosis in a patient with neurofibromatosis type 1. PMID- 29021451 TI - Otitis Media with ANCA-associated Vasculitis: A New Concept and the Associated Criteria. AB - A previously healthy 77-year-old Japanese man presented with a 2-week history of daily fevers peaking at 38 degrees C, chills, hearing loss, and almost 10 kg of unintentional weight loss over 2 months. Pure tone audiometry showed mixed conductive-sensorineural hearing loss: right, 63.6 dB, left, 80.0 dB. Blood tests after admission showed a high myeloperoxidase-antineutrophil cytoplasmic antibody (MPO-ANCA) level (>300 U/mL), so we suspected ANCA-related vasculitis. The Japanese Otorhinolaryngology Society has recently been advocating the concept of otitis media with ANCA-associated vasculitis (OMAAV). Our case met the criteria proposed, leading to our diagnosis. PMID- 29021450 TI - The Efficacy of a Genetic Analysis of the BMPR2 Gene in a Patient with Severe Pulmonary Arterial Hypertension and an Atrial Septal Defect Treated with Bilateral Lung Transplantation. AB - Severe pulmonary arterial hypertension (PAH) rarely develops in children with an atrial septal defect (ASD), even those with a large defect. We herein report the case of a 27-year-old man with a moderate-sized secundum ASD and right ventricular failure due to severe PAH, which developed in his early teens. He was diagnosed as having a genetic mutation of the bone morphogenetic protein receptor 2 (BMPR2) gene and was successfully treated with bilateral lung transplantation with ASD path closure. In patients with congenital heart disease, a genetic analysis may provide information about the lifetime risk of developing PAH. PMID- 29021452 TI - Familial Adenomatous Polyposis with Multiple Helicobacter-negative Early Gastric Cancers Treated by Endoscopic Submucosal Dissection. AB - Stomach cancer rarely develops in patients with familial adenomatous polyposis (FAP), and Helicobacter pylori infection may increase the risk of FAP-related gastric cancer. We describe the case of a 64-year-old woman who developed multiple synchronous early gastric cancers without H. pylori infection. Nine cancer lesions were successfully treated by endoscopic submucosal dissection. An immunohistochemical analysis revealed that the tumors were positive for mucin (MUC)2, MUC6, and CDX2, but negative for MUC5AC, suggesting that the tumors were gastrointestinal mixed type. Periodical endoscopic surveillance is important for the detection of cancers at an early stage. PMID- 29021453 TI - Severe Alcoholic Hepatitis Effectively Treated with Vitamin E as an Add-on to Corticosteroids. AB - A 49-year-old woman with a history of heavy alcohol drinking was admitted to our hospital due to jaundice and abdominal distention. A blood test showed leukophilia, mild hypoalbuminemia, hyperbilirubinemia, hepatobiliary injury and coagulopathy. Image studies showed an extremely enlarged fatty liver and splenomegaly. The Japan alcoholic hepatitis score and Maddrey's discriminant function were 10 and 54 points, respectively. We diagnosed her with severe alcoholic hepatitis and treated her with corticosteroids, but her liver function did not improve. We therefore administered the vitamin E product tochopheryl acetate (150 mg/day) as an add-on therapy, after which her leukophilia, liver enzymes and coagulopathy improved immediately. PMID- 29021454 TI - Sudden Respiratory Failure due to Tracheobronchomalacia by Relapsing Polychondritis, Successfully Rescued by Multiple Metallic Stenting and Tracheostomy. AB - Relapsing polychondritis (RP) is a rare systemic autoimmune disease that affects cartilaginous structures. RP causes tracheobronchomalacia (TBM) by affecting the bronchial cartilage. TBM is a fatal condition characterized by excessive weakening of the walls of the trachea and bronchi. We herein report a case of a 73-year-old man who experienced sudden respiratory failure due to TBM caused by RP. Immunosuppressive treatment did not improve his respiratory failure. Multiple metallic stentings dramatically improved his severe airway symptoms. When the airway condition becomes lethal in RP patients, then metallic stenting can be a useful treatment option. PMID- 29021455 TI - Enormous Ovarian Cyst. PMID- 29021457 TI - Progressive Constrictive Pericarditis Shortly after Purulent Pericarditis. PMID- 29021456 TI - Quantitative Assessment of Swallowing Dysfunction in Patients with Spinal and Bulbar Muscular Atrophy. AB - Objective This study aimed to evaluate swallowing dysfunction in patients with spinal and bulbar muscular atrophy and to identify the most appropriate method of assessing swallowing dysfunction using a videofluoroscopic swallowing study. Methods In the videofluoroscopic swallowing study, patients were instructed to swallow 3 mL of 40% weight/volume barium sulfate twice, and the pharyngeal residue was measured. We used three different methods to quantify the pharyngeal barium residue and an eight-point scale to evaluate the laryngeal penetration leading to aspiration pneumoniae. Patients We assessed 111 patients with spinal and bulbar muscular atrophy who weren't undergoing disease-specific treatment. Results Our results showed that the pharyngeal barium residue after initial swallowing correlated better with the bulbar-related functional rating scales than that after multiple deglutition. This correlation was vague when the data from patients whose barium residue was >50% were eliminated. In addition, evaluating the pharyngeal residue after initial swallowing proved to be the most sensitive method with regard to laryngeal penetration. Conclusion This study showed that the pharyngeal barium residue after initial swallowing was the most appropriate parameter for quantitatively assessing the degree of dysphagia using a videofluoroscopic swallowing study and suggests that this method may predict laryngeal penetration and aspiration in patients with spinal and bulbar muscular atrophy. PMID- 29021458 TI - Progressive Pseudolithiasis Associated with the Intravenous Administration of Ceftriaxone in Patients with Central Nervous System Infections. AB - We report four adult cases of ceftriaxone (CTRX)-induced pseudolithiasis and nephrolithiasis. With the exception of case 1, none of our cases showed abdominal symptoms. Our patients, who had central nervous system (CNS) infections, had been treated with CTRX (4 g/day) for 35-69 days. CTRX-induced pseudolithiasis and nephrolithiasis can appear depending on the total dose of CTRX and the duration for which it is administered. Patients with bacterial CNS infections who are treated with CTRX are typically treated with higher doses for longer periods. It should be recognized that these patients are at higher risk of developing CTRX induced pseudolithiasis and nephrolithiasis. PMID- 29021459 TI - Bilateral Frontal Lobe Vasogenic Edema Resulting from Hypertrophic Pachymeningitis due to Granulomatosis with Polyangiitis. AB - A 61-year-old woman presented with a 1-month history of decreased activities of daily living. Magnetic resonance imaging revealed abnormal intensities of the bilateral frontal lobes and enhancement of the thickened dura matter. A biopsy of the dura mater revealed multinucleated giant cells. She had sinusitis and hematuria; she was diagnosed with granulomatosis with polyangiitis. Hypertrophic pachymeningitis (HPM) was considered to have interrupted the venous flow and caused vasogenic edema. Bilateral frontal lobe edema resulting from HPM due to granulomatosis with polyangiitis has not been reported. A biopsy and examination for other organ complications were useful for the diagnosis and treatment of our patient. PMID- 29021460 TI - Dental Technicians' Pneumoconiosis. AB - A 40-year-old female dental technician visited our hospital for the investigation of a chest X-ray abnormality. Chest computed tomography demonstrated centrilobular nodules and lung volume reduction, and her serum KL-6 level was elevated. A histological analysis of the specimens obtained on a surgical lung biopsy showed peribronchiolar fibrosis with pigmented macrophages and cholesterol clefts. An energy-dispersive X-ray analysis showed that these lung tissues contained some metals, including indium. The serum indium level was also elevated. We diagnosed this patient with pneumoconiosis caused by exposure to sandblasting certain dental metals. This is the first reported case of pneumoconiosis in a dental technician associated with exposure to indium. PMID- 29021462 TI - Novel Imaging of Hypoglycemia-induced Myocardial Abnormality by Cardiac Magnetic Resonance T1-mapping. PMID- 29021463 TI - Uvula Hematoma. PMID- 29021464 TI - PR3-ANCA-positive Pulmonary Cryptococcosis. PMID- 29021461 TI - Isolation of ESBL-producing Bacteria from Sputum in Community-acquired Pneumonia or Healthcare-associated Pneumonia Does Not Indicate the Need for Antibiotics with Activity against This Class. AB - Objective In the past decade, extended-spectrum beta-lactamase (ESBL)-producing bacteria have increasingly frequently been isolated from various kinds of clinical specimens. However, the appropriate treatment of pneumonia in which ESBL producing bacteria are isolated from sputum culture is poorly understood. To investigate whether or not ESBL-producing bacteria isolated from sputum in pneumonia cases should be treated as the causative bacteria. Methods and Patients In this retrospective study, we screened for patients, admitted between January 2009 and December 2015 in whom pneumonia was suspected and for whom sputum cultures yielded Escherichia coli or Klebsiella spp. isolates. We identified patients with community-acquired pneumonia (CAP) or healthcare-associated pneumonia (HCAP) from whom ESBL-producing bacteria had been isolated from sputum culture and to whom antibiotic treatment had been given with a diagnosis of pneumonia. We analyzed the patients' backgrounds and the effect of the antibiotic treatment for the initial 3-5 days. Results From 400 patients initially screened, 27 with ESBL-producing bacteria were secondarily screened. In this subset of patients, 15 were diagnosed with pneumonia, including 7 with CAP (5 E. coli and 2 K. pneumoniae) and 8 with HCAP (8 E. coli). These patients exhibited an average age of 84.1 years old, and 9 of 15 were men. No patients were initially treated with antimicrobials that are effective against isolated ESBL-producing bacteria. However, 13 of 15 patients showed improvement of pneumonia following the initial antibiotic treatment. Conclusion ESBL-producing bacteria isolated from sputum are not likely to be the actual causative organisms of pneumonia. PMID- 29021465 TI - Insulinoma with a History of Epilepsy: Still a Possible Misleading Factor in the Early Diagnosis of Insulinoma. AB - A delayed diagnosis of insulinoma remains a clinical issue. Hypoglycemic symptoms can mimic neuropsychiatric disorders such as epilepsy. A 27-year-old woman with a history of epilepsy and anti-epileptic drugs (AEDs) developed repeated seizures and neuropsychiatric symptoms after a 9-year asymptomatic interval. She had received transient treatment with AEDs before the possibility of hypoglycemia was considered. Following a clinical diagnosis of insulinoma, distal pancreatectomy was performed; her seizures didn't occur again. The early diagnosis of insulinoma requires vigilance not only for hypoglycemia in patients with neuropsychiatric symptoms but also for the possible masking effects of a history of epilepsy and preceding AED usage. PMID- 29021466 TI - Successful Treatment of a Case of Late-onset Colitis after Umbilical Cord Transplantation with Metronidazole: A Case Report and Literature Review. AB - Diarrhea after hematopoietic stem cell transplantation (HSCT) can be life threatening, and its etiology includes conditioning regimens, graft-versus-host disease (GVHD), infections, and transplantation-associated microangiopathy (iTAM). Cord colitis syndrome (CCS) has been described as a syndrome of culture negative and antibiotic-responsive persistent watery and non-bloody diarrhea of uncertain pathogenesis and occurs in umbilical cord blood transplantation (UCBT) recipients. We encountered a case similar to CCS that developed severe watery diarrhea after UCBT without any signs of GVHD or infection and responded well to metronidazole (MNZ) treatment. Since CCS is very rare, we herein describe a case of MNZ-effective diarrhea after UCBT. PMID- 29021467 TI - Tuberculosis of the Wrist Accompanied with Calcium Pyrophosphate. AB - This is a rare case of tuberculosis (TB) complicated with pseudogout of the wrist joint in a non-immunocompromised 84-year-old female with a history of pulmonary tuberculosis. She was diagnosed with extrapulmonary tuberculosis of the wrist based on a polymerase chain reaction (PCR) study and synovial fluid aspiration in which the cytology was positive for acid-fast bacilli. Calcium pyrophosphate was also positive. We must be careful not to miss articular tuberculosis as it may mimic common inflammatory arthritis, such as pseudogout of the wrist. Even if the patient is positive for calcium pyrophosphate, this does not exclude the possibility of articular tuberculosis. PMID- 29021468 TI - Esophageal Varix in an Adult Fontan Survivor. PMID- 29021469 TI - Elevation of Plasmin-alpha2-plasmin Inhibitor Complex Predicts the Diagnosis of Systemic AL Amyloidosis in Patients with Monoclonal Protein. AB - Objective The complication of systemic immunoglobulin light chain (AL) amyloidosis in patients with monoclonal immunoglobulin affects the prognosis, but amyloid deposition in tissues is sometimes difficult to detect due to bleeding tendencies and preferential distributions. However, fibrinolysis is known to be exacerbated in patients with systemic AL amyloidosis specifically. We therefore explored new biomarkers for predicting a diagnosis of systemic AL amyloidosis focusing on coagulation and fibrinolysis markers. Methods We reviewed the clinical features and treatment outcomes of patients with serum monoclonal protein, including primary systemic AL amyloidosis and multiple myeloma (MM), treated at our hospital between January 2008 and December 2014. Results Among several biomarkers, only the serum level of plasmin-alpha2-plasmin inhibitor complex (PIC) in patients with systemic AL amyloidosis (n=26) at the diagnosis was significantly higher than in patients with MM without AL amyloidosis (n=26) (mean+/-standard deviation, 3.69+/-2.82 MUg/mL vs. 1.23+/-0.97 MUg/mL, p<0.01). The cut-off for predicting a diagnosis of systemic AL amyloidosis in patients with serum monoclonal protein was 1.72 MUg/mL with 84.6% sensitivity and 80.8% specificity. Hepatic involvement resulted in a significantly higher PIC level than no involvement in patients with systemic AL amyloidosis. The serum PIC level was also associated with the hematological response of systemic AL amyloidosis. Conclusion PIC is a useful biomarker for the diagnosis and management of patients with systemic AL amyloidosis. PMID- 29021470 TI - EUS-guided Biliary Drainage for Malignant Perihilar Biliary Strictures after Further Transpapillary Intervention Has Been Judged to Be Impossible or Ineffective. AB - Objective Patients with perihilar malignancy often develop recurrence of infectious cholangitis, which makes further transpapillary intervention extremely difficult. As endoscopic ultrasound (EUS)-guided biliary drainage (EUS-BD) of an intrahepatic bile duct is a possible option for additional intervention, the aim of this study was to estimate the feasibility of such intervention. Methods and Patients Patients who had undergone EUS-BD after further transpapillary intervention was deemed impossible or ineffective were investigated in this study. Those who had not received previous interventions via the papilla were excluded. Procedure-related adverse events, clinical efficacy, and time to recurrence of jaundice or infectious cholangitis transthyretin (TTR) were evaluated. Results Seven patients were eligible for the study between 2007 and 2016 (7 men; mean age, 77 years; 4 with perihilar cholangiocarcinoma and 3 with intrahepatic cholangiocarcinoma). No procedure-related adverse events were observed. EUS-BD was clinically effective and enabled hospital discharge in 4 patients (57%). The TTR in these 4 clinically effective patients was 43, 105, 118, and 147 days after the procedure (median, 112 days). Conclusion EUS-BD was found to be safe and often effective in patients in whom additional transpapillary intervention had become difficult, although its efficacy was limited to a short period. PMID- 29021471 TI - Syndrome of Inappropriate Antidiuretic Hormone Secretion in a Patient with Mucosa associated Lymphoid Tissue Lymphoma. AB - Syndrome of inappropriate antidiuretic hormone secretion (SIADH) may develop in association with several malignancies. However, as an immunohistochemical analysis is not performed in the majority cases, its true cause is often uncertain. We herein report a case of SIADH following chemotherapy due to tumor derived ADH production in a patient with mucosa-associated lymphoid tissue (MALT) lymphoma. A retrospective immunohistochemical analysis demonstrated ADH expression by lymphoma cells. These findings highlight the importance of using an immunohistochemical analysis to determine ADH production by tumor cells in patients with SIADH. Such analyses play an important role in elucidating the pathogenesis of SIADH and determining the most appropriate treatment. PMID- 29021472 TI - Pneumothorax Secondary to Septic Pulmonary Emboli in a Long-term Hemodialysis Patient with Psoas Abscess. AB - Pneumothorax secondary to septic pulmonary embolism (SPE) is rare but life threatening. We herein report a long-term hemodialysis patient with psoas abscess caused by methicillin-resistant Staphylococcus aureus, associated with other muscle and splenic abscesses and SPE. Intravenous vancomycin treatment and percutaneous drainage of the psoas abscess rapidly improved her condition. However, the SPE lesions continued to increase, and right-sided pneumothorax occurred 10 days after treatment. The pneumothorax resolved after two months and SPE and all abscesses after four months of treatment. Since late-onset pneumothorax caused by SPE can occur despite successful treatment of the primary infection, care should be taken with such patients. PMID- 29021474 TI - Heteroplasmy of the m.3243A>G Mutation May Influence Phenotypic Heterogeneity. PMID- 29021473 TI - Oncocytic Type Intraductal Papillary Mucinous Neoplasm of the Pancreas with Unusually Low Mucin Production Mimicking Intraductal Tubulopapillary Neoplasm: A Report of a Case Diagnosed by a Preoperative Endoscopic Biopsy. AB - We herein report the case of a 78-year-old woman with an intraductal tumor with scant mucin production in a moderately dilated main pancreatic duct that resembled an intraductal tubulopapillary neoplasm (ITPN) on imaging. An endoscopic transpapillary forceps biopsy enabled an accurate preoperative diagnosis of the tumor as an oncocytic type intraductal papillary mucinous neoplasm (IPMN) of the pancreas microscopically showing papillary growth consisting of oncocytic cells with a typical mucin expression profile, although with few intraepithelial lumina containing mucin. This is the first case of an oncocytic type IPMN mimicking an ITPN that was able to be diagnosed preoperatively. PMID- 29021475 TI - Successful Pulmonary Artery Embolization for the Management of Hemoptysis in a Patient with Eisenmenger Syndrome Caused by Patent Ductus Arteriosus. AB - The patient was a 19-year-old woman who was diagnosed with patent ductus arteriosus complicating Eisenmenger syndrome at a previous medical institution. She was referred to our hospital and arranged for lung transplantation. She developed hemoptysis after the introduction of i.v. epoprostenol, which was administered as a bridging treatment while the patient awaited lung transplantation. She continued to suffer from recurrent hemoptysis, even after switching from i.v. epoprostenol to i.v. treprostinil. Angiography of the systemic and pulmonary arteries revealed the vessel responsible for the recurrent hemoptysis and pulmonary artery embolization was successfully performed. It is essential to identify the culprit vessel and physicians must not hesitate in performing embolization when patients develop lethal hemoptysis. PMID- 29021476 TI - A Rare Monocytic Crisis of Chronic Myelogenous Leukemia Presenting with Unusual Extramedullary Manifestations and an Atypical (14;22)(q24;q11.2) Translocation in the Bone Marrow. AB - A 48-year-old man was admitted due to marked leukocytosis. Bone marrow examinations resulted in a diagnosis of Philadelphia (Ph) chromosome-positive chronic myeloid leukemia. One month later, massive muscle and bone invasion by leukemic cells was detected. After induction chemotherapy, he complained of a headache and visual loss, which was caused by a leukemic infiltration in the central nervous system. After temporary remission in response to chemotherapy, the disease relapsed in the form of an intracranial tumor. The unusual t(14;22)(q24;q11.2) translocation of the Ph-chromosome and the significant increase in monocytes observed might have contributed to the unique and aggressive clinical course. PMID- 29021477 TI - Management of Osteoporosis in Chronic Kidney Disease. AB - Chronic kidney disease (CKD) patients with coexisting osteoporosis are becoming common. Many of the therapeutic agents used to treat osteoporosis are known to be affected by the renal function. It is generally thought that osteoporosis in G1 to G3 CKD patients can be treated as in non-CKD patients with osteoporosis. In stage 4 or more advanced CKD patients and CKD patients on dialysis with osteoporosis, however, bisphosphonates must be used with caution, bearing in mind the potential development of such disorders as adynamic bone disease. The use of vitamin D preparations in low doses is relatively safe. In postmenopausal women, raloxifene must be administered with caution. When using denosumab, the serum calcium concentrations should be monitored carefully to prevent the development of hypocalcemia, and active vitamin D preparations should be administered concomitantly. The present article provides an overview of the management of osteoporosis in CKD patients. PMID- 29021478 TI - Rhabdomyolysis in a Patient with Polyarteritis Nodosa. AB - Polyarteritis nodosa (PAN) is a medium vessel vasculitis affecting systemic organs. Muscle involvement of PAN usually lacks elevation of creatinine kinase (CK). We herein report a case of PAN with rhabdomyolysis. A 71-year-old man was hospitalized because of muscle weakness of the lower limbs that persisted for 1 month. On a physical examination, rapidly progressive lower proximal muscle weakness and bilateral drop foot were observed. His blood test showed an elevation in the C-reactive protein (19.5 mg/dL) and CK (13,435 IU/L) levels and negativity for anti-neutrophilic cytoplasmic antibody. Computed tomographic angiography showed stenosis of the left renal artery. Electromyogram indicated mono-neuritis multiplex pattern, and enhanced magnetic resonance imaging demonstrated discretely granular hyperintensities on T2 and slow tau inversion recovery in his femoral muscles. A femoral muscle-biopsy specimen showed fibrinoid necrosis of medium-sized vessels and disruption of the elastic lamina of the vessel wall in fascia. Furthermore, muscle necrosis was localized depending on the arterial distribution, suggesting ischemic changes in the muscles. Given these findings, he was diagnosed with PAN with rhabdomyolysis and treated with methyl-prednisolone pulse therapy followed by oral prednisolone at 50 mg/day. He was additionally treated with monthly intravenous cyclophosphamide at 500 mg. Sustained remission has been obtained for two months since the treatment. Although rhabdomyolysis rarely manifests with PAN, it should be included in a differential diagnosis of febrile patients presenting with acute myalgia and weakness with CK elevation. PMID- 29021479 TI - A Japanese Case of Esophageal Lichen Planus that Was Successfully Treated with Systemic Corticosteroids. AB - Esophageal lichen planus (ELP) is rare and only about 80 cases have been reported in the literature. An 85-year-old woman presented with dysphagia and odynophagia. Endoscopy revealed a severe stricture in the proximal esophagus. Oral examinations at two years after the first endoscopy revealed erosions around the gingiva, and an examination of biopsy specimens taken from the site of erosion led to a diagnosis of oral lichen planus. Esophageal endoscopy was performed again, and biopsy specimens showed spongiosis and necrotic keratinocytes in the epithelium (civatte bodies). The patient was diagnosed with ELP and was treated with systemic corticosteroids, which resulted in clinical relief. PMID- 29021480 TI - The Effects of Mitiglinide and Repaglinide on Postprandial Hyperglycemia in Patients Undergoing Methylprednisolone Pulse Therapy. AB - One adverse effect of methylprednisolone (MP) pulse therapy is an acute dose dependent increase in the blood glucose level. Five patients with thyroid ophthalmopathy but normal glucose tolerance received MP pulse therapy (3 cycles, 3 days/week) and were assessed by continuous glucose monitoring. Steroid therapy increased the mean sensor glucose level, and all patients developed steroid induced diabetes. The patients were treated alternately with mitiglinide (30 mg/day) and repaglinide (1.5 mg/day) during the second or third MP pulse therapy. The sensor glucose levels before lunch and dinner were more favorable during treatment with repaglinide than during treatment with mitiglinide. Repaglinide may be more clinically appropriate than mitiglinide. PMID- 29021483 TI - Transarterial Embolization of a Ruptured Renal Angiomyolipoma. PMID- 29021481 TI - Cryptococcal Pleuritis Presenting with Lymphocyte-predominant and High Levels of Adenosine Deaminase in Pleural Effusions Coincident with Pulmonary Tuberculosis. AB - Co-infection with cryptococcus and tuberculosis has rarely been reported. We herein report a case of an 80-year-old man with cryptococcal pleuritis concurrent with pulmonary tuberculosis. He was admitted for progression of left pleural effusion and consolidation in the left upper lobe. Culture for Mycobacterium tuberculosis was positive in sputum, and analyses of pleural effusion revealed lymphocyte-predominant high levels of adenosine deaminase (ADA). Medical thoracoscopy revealed massive infiltration of Cryptococcus neoformans in pleura without granuloma. This is the first case report of cryptococcal pleuritis coincident with pulmonary tuberculosis. Cryptococcal pleuritis should be ruled out when the adenosine deaminase levels are elevated in pleural effusion. PMID- 29021482 TI - Disseminated Cryptococcosis with Marked Eosinophilia in a Postpartum Woman. AB - Disseminated cryptococcosis usually develops in immunosuppressed patients. A 33 year-old postpartum woman developed disseminated cryptococcosis with marked eosinophilia. She presented with a cough and a week-long fever. A computed tomography scan showed multiple pulmonary nodules randomly distributed. Eosinophils were observed to have increased in number in both her peripheral blood and bronchoalveolar lavage fluid. A transbronchial lung biopsy and cerebrospinal fluid specimens revealed findings consistent with cryptococcal infection. Disseminated cryptococcosis can present with marked eosinophilia of the peripheral blood and lung tissues. Additionally, the postpartum immune status may sometimes be involved in the development of opportunistic infections in previously healthy women. PMID- 29021484 TI - Anti-neutrophil Cytoplasmic Antibody-associated Vasculitis Complicated by Periaortitis and Cranial Hypertrophic Pachymeningitis: A Report of an Autopsy Case. AB - Anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) is a systemic inflammatory disorder categorized as small-vessel vasculitis. We herein report an elderly Japanese man with AAV (granulomatosis with polyangiitis affecting the eyes, nose, lungs, and kidneys) who also showed periaortitis at the diagnosis and developed cranial hypertrophic pachymeningitis (HP) during steroid maintenance therapy. His consciousness disturbance caused by HP improved after steroid pulse therapy, but he died of aspiration pneumonia. Autopsy findings showed giant cells in the thickened pachymeninges and obsolete inflammatory lesions in the aortic adventitia and renal tubulointerstitium. This is the first case of AAV complicated by periaortitis and cranial HP. PMID- 29021485 TI - Spontaneous Regression of Epithelioid Angiosarcoma in a Young Woman. AB - A 20-year-old Japanese woman with a history of pulmonary atresia was referred to our hospital after the detection of an abnormal mass in the right lung and mediastinal lymphadenopathy. A cytological specimen obtained by transbronchial brushing indicated that the pathological diagnosis was non-small cell lung cancer. During the follow-up period, the tumor spontaneously regressed. At four months after the diagnosis, she experienced sudden bleeding from the small intestine. The histological characteristics of the small intestine tumor were compatible with the cytological characteristics of the lung tumor. Detailed immunohistochemical analyses led to a final diagnosis of epithelial angiosarcoma of the small intestine, which might have formed metastatic lesions in the lung. PMID- 29021486 TI - A Hypoglycemia-inducing Giant Borderline Phyllodes Tumor Secreting High-molecular weight Insulin-Like Growth Factor II: Immunohistochemistry and a Western Blot Analysis. AB - A 50-year-old woman with a large right breast mass was emergently hospitalized for generalized weakness and fatigue. A histological examination of tumor biopsy specimens revealed a phyllodes tumor (PT). She suddenly lost consciousness due to severe hypoglycemia. Non-islet cell tumor hypoglycemia (NICTH) due to the PT was suspected. The tumor was emergently resected. A histological examination revealed a borderline PT. The patient recovered from the hypoglycemic episode. High molecular-weight insulin-like growth factor II was detected in serum that had been collected preoperatively and in the tumor tissue, but not in serum that had been collected postoperatively. We herein present a case of a borderline PT with NICTH. PMID- 29021488 TI - Aerobic Dechlorination of Dichloromethane Using Biostimulation Agent BD-C in Continuous and Batch Cultures of Xanthobacter autotrophicus GJ10. AB - It is important to construct microbiological treatment systems for organic solvent-contaminated water. We developed a continuous culture supplemented with a biostimulation agent named BD-C, which is formulated from canola oil, and Xanthobacter autotrophicus strain GJ10 for an aerobic dichloromethane (DCM) dechlorinating microorganism. The continuous culture was a chemostat constructed using a 1 L screw-capped bottle containing artificial wastewater medium with 2.0 mM DCM and 1.0% (v/v) BD-C. The expression of genes for DCM metabolism in the dechlorinating aerobe was monitored and analyzed by reverse transcription quantitative PCR. Strain GJ10 was able to dechlorinate approximately 74% of the DCM in medium supplemented with BD-C during 12 days of incubation. The DCM dechlorination rate was calculated to be 0.11 mM/day. The DeltaDeltaCT method showed that expression of haloalkane dehalogenase increased 5.4 times in the presence of BD-C. Based on batch culture growth tests conducted with mineral salt medium containing three DCM concentrations (0.07, 0.20, 0.43 and 0.65 mM) with BD C, the apparent maximum specific consumption rate (numax) and the saturation constant (Ks) determined for DCM degradation in this test were 19.0 nmol/h/CFU and 0.44 mM, respectively. In conclusion, BD-C enhanced the aerobic degradation of DCM by strain GJ10. PMID- 29021487 TI - Severe Infection of Pseudomonas aeruginosa during Eculizumab Therapy for Paroxysmal Nocturnal Hemoglobinuria. AB - Eculizumab is the complement inhibitor administered to ameliorate intravascular hemolysis in paroxysmal nocturnal hemoglobinuria. Whether or not the inhibitory mechanism may also increase the susceptibility to non-Neisserial infection is unclear. A 73-year old woman presented with bacteremia, cholecystitis and liver abscess with Pseudomonas aeruginosa. Although she had been neutropenic for 21 years, she had no history of severe infection before eculizumab had been administered. The infection with P. aeruginosa was successfully controlled with antibiotics, granulocyte colony-stimulating factor and cholecystectomy. The present case might be representative of less common bacterial infections than Neisseria spp. among patients treated with eculizumab. PMID- 29021489 TI - Surface Morphology of Cosmetic Film Consisting of PEG-Diisostearate Amphiphilic Random Copolymer, Xanthan Gum, and Solvents. AB - The surface morphology of a cosmetic film consisting of an amphiphilic random copolymer (methoxy polyethylene glycol-23 methacrylate/glyceryl diisostearate methacrylate copolymer, MPM-GDM) and solvents has been studied. The cosmetic film was prepared through the evaporation of water from a homogeneous aqueous mixture of MPM-GDM, xanthan gum, and solvents. MPM-GDM was soluble in water, monohydric alcohols, and 1,3-butylene glycol (1,3-BG), whereas it hardly dissolved in glycerin. The surface morphology was examined by changing the solvent composition of 1,3-BG (good solvent) and glycerin (poor solvent). Confocal laser scanning microscopy (CLSM) images of the cosmetic film showed that MPM-GDM spread through the whole film in the absence of glycerin, whereas the addition of glycerin led to the formation of a sea-island structure. It was assumed that the size of the MPM-GDM domain was determined by the balance between two factors: the miscibility (or the interfacial tension) of MPM-GDM against the solvents and the viscosity of the continuous phase. We also demonstrated that the concentration of both MPM-GDM and xanthan gum affected the surface morphology. Control of the surface morphology by changing the solubility of MPM-GDM is expected to be useful for improving the functionality and feel of cosmetic films. PMID- 29021491 TI - Effects of Sterol-Like Additives on Phase Transition Behavior of Ion-Pair Amphiphile Bilayers. AB - The incorporation of additive in lipid bilayers is one of the ordinary approaches for modulating their properties. Additive effect on phase transition of ion-pair amphiphile (IPA) bilayers, however, is not known. In this work, four double chained IPAs with different hydrocarbon chain lengths and symmetry were designed and synthesized from single-chained cationic and anionic surfactants by the precipitation method. By using differential scanning calorimetry (DSC), the thermotropic transition behavior from gel phase (Lbeta) through rippled phase (Pbeta') if any to liquid-crystalline phase (Lalpha) was studied for bilayers of these lipid-like IPAs in excess water. The effects of three sterol-like additives (cholesterol, alpha-tocopherol, and alpha-tocopheryl acetate) in IPA bilayers on thermal phase behavior were then systematically investigated. The experimental results revealed that with increasing concentration of additive, the phase transition temperatures were unaffected on the one hand and the enthalpies of phase transition were decreased on the other hand. When the addition of additive exceeded a specific amount, the phase transition disappeared. More hasty disappearance of phase transition was found for IPAs with lower total number of carbon atoms in the hydrocarbon chains. For IPAs with the same total number of carbon atoms in the hydrocarbon chains, the disappearance of phase transition is more hasty for the asymmetric one than for the symmetric one. Similar effects on thermal phase behavior of four IPA bilayers were exhibited by the three additives with similar chemical structures. Possible mechanism of additive effects on phase transition of IPA bilayers was then proposed in line with that of lipid bilayers. PMID- 29021490 TI - Synthesis and Application of a New Amphiphilic Antioxidant. AB - A new amphiphilic antioxidant (tannyl stearate) derived from reaction of tannic acid with stearic acid was synthesized in order to improve tannic acid solubility in lipid materials. This reaction gives many products having different degree of esterification (tannyl mono, di, tri, tetra, penta, hexa, hepta......stearate) which were separated using silica gel column chromatography and tentative identification was carried out using thin layer chromatography (TLC). The intrinsic viscosities (eta) were used to differentiate between the different molecular weight of the produced esters1). Tannyl penta stearate is assumed to be the most suitable amphiphilic antioxidant derivative, where those derivatives with less degree of esterification would be less soluble in fat, and those of higher degree of esterification would exhaust more hydroxyl group that cause decreases of antioxidant activity. The structure of tannyl penta stearate was approved depending on its chemical analysis and spectral data (IR, H1 NMR,). The emulsification power of tannyl penta stearate was then determined according to method described by El-Sukkary et al.2), in order to prove its amphiphilic property. Then tannyl penta stearate was tested for its antioxidant and radical scavenging activities in three different manners, those are, lipid oxidation in sunflower oil using Rancimat, (DPPH) free radical scavenging and total antioxidant activity. {Pure tannic acid (T), butylhydroxyanisol (BHA) and butylhydroxytoluene (BHT) were used as reference antioxidant radical saving compounds}. Then tannyl penta stearate was added to sunflower oil, frying process was carried out and all physicochemical parameters of the oil were considered, and compared to other reference antioxidant in order to study the effect of this new antioxidant toward oil stability. Acute oral toxicity of the tannyl penta stearate was carried out using albino mice of 21-25 g body weight to determine its safety according to the method described by Goodman et al.3). Also liver and kidney functions of those mice were checked. Thus it could be concluded that the addition of tannyl penta stearate to frying oils offers a good protection against oxidation. The effectiveness of tannyl penta stearate as lipid antioxidant has been attributed mainly to its stability at high temperature. And according to acute lethal toxicity test tannyl penta stearate was found to be a safe compound that can be used as food additive. PMID- 29021492 TI - Optimization of the Synthesis of Structured Phosphatidylcholine with Medium Chain Fatty Acid. AB - Structured phosphatidylcholine was successfully produced by acidolysis between phosphatidylcholine and free medium chain fatty acid, using phospholipase A1 immobilized on Duolite A568. Response surface methodology was applied to optimize the reaction system using three process parameters: molar ratio of substrates (phosphatidylcholine to free medium chain fatty acid), enzyme loading, and reaction temperature. All parameters evaluated showed linear and quadratic significant effects on the production of modified phosphatidylcholine; molar ratio of substrates contributed positively, but temperature influenced negatively. Increased enzyme loading also led to increased production of modified phosphatidylcholine but only during the first 9 hours of the acidolysis reaction. Optimal conditions obtained from the model were a ratio of phosphatidylcholine to free medium chain fatty acid of 1:15, an enzyme loading of 12%, and a temperature of 45 degrees C. Under these conditions a production of modified phosphatidylcholine of 52.98 % were obtained after 24 h of reaction. The prediction was confirmed from the verification experiments; the production of modified phosphatidylcholine was 53.02%, the total yield of phosphatidylcholine 64.28% and the molar incorporation of medium chain fatty acid was 42.31%. The acidolysis reaction was scaled-up in a batch reactor with a similar production of modified phosphatidylcholine, total yield of phosphatidylcholine and molar incorporation of medium chain fatty acid. Purification by column chromatography of the structured phosphatidylcholine yielded 62.53% of phosphatidylcholine enriched with 42.52% of medium chain fatty acid. PMID- 29021493 TI - Lyoprotective Effect of Alkyl Sulfobetaines for Freeze-drying 1,2-Dipalmitoyl-sn glycero-3-phosphocholine Liposomes. AB - A liposome is a molecular assembly in the form of a vesicle comprised of a phospholipid bilayer. Liposomes can be used as molecular containers in various fields such as pharmaceutical, cosmetic, and food industries. It is difficult to maintain the original structure of liposomes in an aqueous medium. Phospholipids, which are components of liposomes, are susceptible to hydrolysis, which causes disruption of the liposomal structure and dysfunction of the molecular container. In this context, freeze-drying liposomes is a preferable method to improve the shelf life of liposomes. However, when freeze-drying liposomes, a lyoprotective agent is required to preserve their original structure. In this study, we investigate whether alkyl sulfobetaines (SBn, n: number of carbons in the alkyl chain, n = 1-18) can be used as lyoprotectants for 1,2-dipalmitoyl-sn-glycero-3 phosphocholine (DPPC) liposomes. The results indicated that the length of the alkyl chain of the SBn was an important factor to prevent liposome disruption during the freeze-drying and subsequent rehydration processes. The use of SBn with an alkyl chain of intermediate length (n = 6-10) could prevent liposome disruption and remarkably reduce the gel-to-liquid crystal phase transition temperature (Tm) of the freeze-dried liposomes. This indicates that these SBn could intercalate in the dried bilayer and reduce intermolecular interaction between DPPC in the bilayer. The Tm reduction of the freeze-dried liposomes should contribute to prevention of the gel-to-liquid phase transition of the liposomes during the rehydration process, which has been known to be a main cause of liposome disruption. We expect that the results from this study will provide an insight into the influence of zwitterionic additives on freeze-dried lipid bilayers and the lyoprotective effect, which should be useful in many biochemical and biomedical fields. PMID- 29021494 TI - Analysis of Lutein in Mugwort (Artemisia princeps Pamp.) Paste and Evaluation of Manufacturing Processes. AB - Lutein, a type of xanthophyll, possesses antioxidative properties that contribute to the prevention of various diseases. Preliminary screening has shown that Japanese mugwort (Artemisia princeps Pamp.) contains high amounts of lutein. In this study, we evaluated the lutein concentration in a processed mugwort product (mugwort paste). By using high-performance liquid chromatography coupled with visible light detection or mass spectrometry, the lutein concentration in mugwort paste was determined as 38 mg/100 g dry weight, which indicates that mugwort is a potentially valuable natural food source of lutein. We also investigated the effects of the manufacturing process and found that the lutein content was significantly increased by the boiling and dehydrating processes during the production of mugwort paste. Mugwort paste that is rich in lutein may therefore serve as an effective nutraceutical. PMID- 29021495 TI - Structure of the Microemulsion of Polyglycerol Polyricinoleate Encapsulating Vitamin E. AB - The structures of micelles and microemulsions consisting of polyglycerol polyricinoleate (PGPR) were investigated by small-angle X-ray scattering (SAXS) and rheological measurements. The SAXS results show that amphiphilic PGPR molecules form stable micelles in glycerol. When vitamin E is added to the PGPR micelles, it is encapsulated in the micelles and forms an emulsion. These micelles are stable towards mechanical shearing up to a shear rate of 1000 s-1, with shear thinning occurring in the emulsion above 100 s-1, indicating that the emulsion may undergo break up by shearing, but recovers the structure by releasing shear strain. PMID- 29021496 TI - Comparison of the Distribution of Unsaturated Fatty Acids at the Sn-2 Position of Phospholipids and Triacylglycerols in Marine Fishes and Mammals. AB - Highly unsaturated fatty acid (HUFA) binding at the sn-2 position of phospholipids (PL) becomes a resource for prostaglandin, leukotriene, resolvin, and protectin synthesis. Both triacylglycerol (TAG) and PL synthesis pathways in vivo are via phosphatidic acid; therefore, the distribution of fatty acid species at the sn-2 position must theoretically be the same for TAG and PL if rearrangement does not occur. However, it is known that little HUFA is located at the sn-2 position of TAG in marine mammals. Therefore, distribution of fatty acid species at the sn-2 position of TAG and PL was compared between marine fishes and mammals in this study. The composition of fatty acids binding at the sn-2 or sn 1,3 position of PL and TAG was analyzed via hydrolysis with enzymes and GC-FID. The results showed that 20:4n-6, 20:5n-3, 22:5n-3, and 22:6n-3 were primarily located at the sn-1,3 positions of TAG in marine mammals. Comparison of the binding positions of HUFA and 16:0 in PL and TAG suggested the existence of Lands' cycle in marine fishes and mammals. In conclusion, both marine fishes and mammals condensed HUFA as a source of eicosanoid at the sn-2 position of PL. Furthermore, abundance ratios for 22:5n-3 or 22:6n-3 at the sn-2 position (sn-2 ratio) in TAG and PL (calculated by the equation: [abundance ratio at sn-2 position of TAG]/[abundance ratio at sn-2 position of PL]) was less than 0.35 in marine mammals; however, it was greater than 0.80 in marine fishes. These differences suggested that the HUFA consisted of 22 carbon atoms and had different roles in marine fishes and mammals. PMID- 29021497 TI - Comparison of Essential Oils from Three Kinds of Cryptotaenia japonica Hassk (Kirimitsuba, Nemitsuba, and Itomitsuba) used in Japanese Food. AB - The compositions of the essential oils from three kinds of Cryptotaenia japonica Hassk ("Mitsuba" in Japanese, Kirimitsuba (KM), Nemitsuba (NM), and Itomitsuba (IM)) were investigated by capillary GC/GC-MS. The oils contained 53 volatile components, of which 95% were terpenoids. The major constituents were sesquiterpenoids, which were alpha-selinene (KM: 39.1%; NM: 38.4%; IM: 13.2%), beta-selinene (15.5%, 15.2%, 4.8%), germacrene D (12.1%, 7.2%, 24.1%), trans farnesene (11.1%, 6.0%, 10.9%), beta-elemene (2.9%, 2.9%, 6.8%), and trans caryophyllene (1.7%, 1.7%, 2.6%). The main sesquiterpene found in KM and NM was alpha-selinene and in IM was germacrene D. The major monoterpenes found were beta myrcene (3.8%, 6.7%, and 3.5%) and beta-pinene (2.8%, 0.2%, and 1.4%). PMID- 29021498 TI - Chinese Journal of Nuclear Medicine and Molecular Imaging Volume 37, Number 9, September 25, 2017. PMID- 29021499 TI - Chitosan-Acrylic Polymeric Nanoparticles with Dynamic Covalent Bonds. Synthesis and Stimuli Behavior. AB - Drug delivery represents one of the most important research fields within the pharmaceutical industry. Different strategies are reported every day in a dynamic search for carriers with the ability to transport drugs across the body, avoiding or decreasing toxic issues and improving therapeutic activity. One of the most interesting strategies currently under research is the development of drug delivery systems sensitive to different stimuli, due to the high potential attributed to the selective delivery of the payload. In this work, a stimuli sensitive nanocarrier was built with a bifunctional acrylic polymer, linked by imine and disulfide bonds to thiolate chitosan, the latter being a biopolymer widely known in the field of tissue engineering and drug delivery by its biodegradability and biocompatibility. These polymer nanoparticles were exposed to different changes in pH and redox potential, which are environments commonly found inside cancer cells. The results proof the ability of the nanoparticles to keep the original structure when either changes in pH or redox potential were applied individually. However, when both stimuli were applied simultaneously, a disassembly of the nanoparticles was evident. These special characteristics make these nanoparticles suitable nanocarriers with potential for the selective delivery of anticancer drugs. PMID- 29021501 TI - Early small bowel perforation due to aflibercept. AB - In patients with malignancy who receive aflibercept based chemotherapy, gastrointestinal perforation is among the reported adverse events with a prevalence of 1.9%. This complication may lead to mortality up to 10.8%. We here report a case of small bowel perforation that occurred fifteen days after the first cycle of aflibercept in a 58-year old female who had metachronous colorectal liver metastases. Emergency laparotomy was performed and revealed a small bowel perforation without any anastomotic dehiscence. Surgery was followed by uneventful outcome. The use of aflibercept in patients with malignancy may be associated with very early gastrointestinal perforation and this should be known by oncologist and surgeons. PMID- 29021500 TI - Optimum culture duration for growing oocytes to attain meiotic and fertilization competence. AB - To determine the optimum culture duration for porcine growing oocytes (GOs) to attain maturation competence, we examined the meiotic competence, chromatin configuration, and fertilization ability of porcine oocytes obtained from early antral follicles and cultured for 10-16 days. The survival rate of oocytes after 10 days of culture (62.8%) was similar to that of oocytes after 12 days of culture (55%) and significantly higher than that of oocytes cultured for 14 and 16 days (52.9 and 24.3%, respectively). No significant difference was observed in the diameter of ooplasm from oocytes cultured for different durations (117.4 118.3 MUm). The maturation rates of surviving oocytes after 10 and 16 days of culture (38.3 and 22.7%, respectively) were significantly lower than those of oocytes cultured for 12 and 14 days, and their in vivo counterparts (52.8-62.4%). The number of oocytes with surrounded-nucleolus chromatin was significantly lower in the 10-day culture group (78.4%) as compared with 14-day culture and in vivo counterpart groups (93.6 and 95.1%, respectively). After in vitro maturation and intracytoplasmic sperm injection, no significant difference was observed in the rate of fertilization among oocytes cultured for 12 and 14 days, and their in vivo counterparts (40.5-47.2%). Thus, porcine GOs required at least 12 days to acquire meiotic and fertilization competence, and the culture duration to maximize the number of mature oocytes ranged from 12 to 14 days. PMID- 29021502 TI - Structural analysis of an innate immunostimulant from broccoli, Brassica oleracea var. italica. AB - Vegetables are eaten as part of a healthy diet throughout the world, and some are also applied topically as a traditional medicine. We evaluated the innate immunostimulating activities of hot water extracts of various vegetables using the silkworm muscle contraction assay system, and found that broccoli, Brassica oleracea var. italica, contains a strong innate immunostimulant. We purified the innate immunostimulant from broccoli, and characterized the chemical structure by chemical analyses and NMR spectroscopy. The innate immunostimulant comprised galacturonic acid, galactose, glucose, arabinose, and rhamnose, and had a pectic like polysaccharide structure. To determine the structural motif involved in the innate immunostimulating activity, we modified the structure by chemical and enzymatic treatment, and found that the activity was attenuated by pectinase digestion. These findings suggest that a pectic-like polysaccharide purified from broccoli has innate immune-stimulating activity, for which the polygalacturonic acid structure is necessary. PMID- 29021503 TI - Characterization of the chemical structure and innate immune-stimulating activity of an extracellular polysaccharide from Rhizobium sp. strain M2 screened using a silkworm muscle contraction assay. AB - We screened innate immunostimulant-producing bacteria using a silkworm muscle contraction assay, and isolated Rhizobium sp. strain M2 from soil. We purified the innate immunostimulant from strain M2, and characterized the chemical structure by nuclear magnetic resonance spectroscopy and chemical analyses. The innate immunostimulant (M2 EPS) comprised glucose, galactose, pyruvic acid, and succinic acid with a molar ratio of 6.8:1.0:0.9:0.4, and had a succinoglycan-like high molecular-weight heteropolysaccharide structure. To determine the structural motif involved in the innate immunostimulating activity, we modified the M2 EPS structure chemically, and found that the activity was increased by removal of the succinic and pyruvic acid substitutions. Strong acid hydrolysis completely inactivated the M2 EPS. Unmasking of the beta-1,3/6-glucan structure of the side chain by deacylation and depyruvylation may enhance the innate immune-stimulating activity of M2 EPS. These findings suggest that the succinoglycan-like polysaccharide purified from strain M2 has innate immune-stimulating activity, and its glycan structure is necessary for the activity. PMID- 29021504 TI - Ethanol extracts of Aster yomena (Kitam.) Honda inhibit adipogenesis through the activation of the AMPK signaling pathway in 3T3-L1 preadipocytes. AB - The leaves of Aster yomena (Kitam.) Honda have long been used as a traditional herb for treating disorders including coughs, asthma, and insect bites. According to recent studies, A. yomena leaf extracts have several pharmacological properties, including anti-inflammatory, antioxidant, and anti-asthmatic activities. However, little information is available regarding their anti-obesity effect. In this study, we investigated the inhibitory effect of the ethanol extracts of A. yomena leaves (EEAY) on adipocyte differentiation and adipogenesis using 3T3-L1 preadipocytes. When 3T3-L1 preadipocytes were treated with various concentrations of EEAY (ranging from non-toxic), the number of lipid droplets, lipid content, and triglyceride production, the typical characteristics of adipocytes, were suppressed in a concentration-dependent manner. During this process, EEAY significantly reduced the expression of adipogenic transcription factors, including peroxisome proliferator-activated receptor-gamma, CCAAT/enhancer-binding protein alpha and beta, and sterol regulatory element binding protein-1c. In addition, EEAY was also found to potently inhibit the expression of adipocyte-specific genes, including adipocyte fatty acid-binding protein and leptin. In particular, EEAY treatment effectively enhanced the activation of the AMP-activated protein kinase (AMPK) signaling pathway; however, the co-treatment with compound C, an inhibitor of AMPK, significantly restored the EEAY-induced inhibition of pro-adipogenic transcription factors and adipocyte specific genes. These results indicate that EEAY may exert an anti-obesity effect by controlling the AMPK signaling pathway, suggesting that the leaf extract of A. yomena may be a potential anti-obesity agent. PMID- 29021505 TI - Skin permeability of tulobuterol in two transdermal formulations and their followability. AB - Various generic transdermal formulations of tulobuterol containing rubber and acrylate base polymers are commercially available in Japan. However, none of the formulations have been compared directly with respect to the skin permeability of tulobuterol and to their follow ability. Tulobuterol Tape Sawai of rubber base and Tulobuterol Tape NP of acrylate base were used to conduct the in vitro 24 hour skin permeability test of tulobuterol at receiver solution temperatures of 32 degrees C, 37 degrees C, and 40 degrees C. Furthermore, the followability of these tapes were examined by measuring the depth of the pores that were formed in their adhesive layer. Consequently, the maximum flux of tulobuterol was greater for Tulobuterol Tape NP. Arrhenius plot analysis revealed that Tulobuterol Tape Sawai was more sensitive to skin surface temperature compared with Tulobuterol Tape NP. Skin abrasion had a greater effect on the skin permeability of tulobuterol in Tulobuterol Tape Sawai than in Tulobuterol Tape NP. Followability was greater for Tulobuterol Tape NP than for Tulobuterol Tape Sawai. These results suggest that a transdermal formulation of acrylate base is preferable to that with a rubber base when skin surface temperature varies or when the skin is abraded. In clinical settings, therefore, a formulation of acrylate base is preferable to a formulation of rubber base when skin surface temperature varies or when the skin is abraded. The formulation needs to be applied to the skin of less asperity for the achievement of better transdermal absorption of tulobuterol. PMID- 29021506 TI - Computational wave dynamics for innovative design of coastal structures. AB - For innovative designs of coastal structures, Numerical Wave Flumes (NWFs), which are solvers of Navier-Stokes equation for free-surface flows, are key tools. In this article, various methods and techniques for NWFs are overviewed. In the former half, key techniques of NWFs, namely the interface capturing (MAC, VOF, C CUP) and significance of NWFs in comparison with the conventional wave models are described. In the latter part of this article, recent improvements of the particle method are shown as one of cores of NWFs. Methods for attenuating unphysical pressure fluctuation and improving accuracy, such as CMPS method for momentum conservation, Higher-order Source of Poisson Pressure Equation (PPE), Higher-order Laplacian, Error-Compensating Source in PPE, and Gradient Correction for ensuring Taylor-series consistency, are reviewed briefly. Finally, the latest new frontier of the accurate particle method, including Dynamic Stabilization for providing minimum-required artificial repulsive force to improve stability of computation, and Space Potential Particle for describing the exact free-surface boundary condition, is described. PMID- 29021507 TI - Biological control for grapevine crown gall using nonpathogenic Rhizobium vitis strain ARK-1. AB - Crown gall of grapevine, which is caused by tumorigenic Rhizobium vitis, is the most important bacterial disease of grapevine throughout the world. Screening tests of biological control agents resulted in the discovery of a nonpathogenic R. vitis strain ARK-1. By soaking grapevine roots with a cell suspension of strain ARK-1 prior to planting in the field, ARK-1 treatment significantly reduced the number of plants with crown gall symptoms. Several field trials result indicated that ARK-1 was very useful in the field, not only for grapevine but also for various other plant species. In experiments where a mixture of ARK-1 and a tumorigenic strain at a 1 : 1 cell ratio was examined in vitro and in planta, expression levels of the virulence genes virD2 and virE2 of the tumorigenic strain were significantly lower. The suppression of virulence genes, which can result in a reduction of gall formation and the pathogen population, seems to be a unique mechanism of ARK-1. These results indicated that ARK-1 is a promising new agent to control grapevine crown gall. PMID- 29021508 TI - Comprehensive functional genomics using Caenorhabditis elegans as a model organism. AB - We have been working on functional genomics using C. elegans as a model organism. We first used cell-type specific markers and preexisting mutants to investigate how genotype-phenotype causal relationships are regulated. With the aid of transgenic methods, we analyzed various biological processes in C. elegans. We have developed efficient methods to isolate gene knockout strains. Thousands of strains isolated this way are used by many researchers and have revealed many biological mechanisms. We have also developed methods to examine the functions of genes in a comprehensive manner by integrating transgenes into chromosomes, designing conditional knockouts, and creating balancers for lethal mutations. A combination of these biological resources and techniques will be useful to understand the functions of genes in C. elegans, which has many genes that are orthologous to those of higher organisms including humans. PMID- 29021510 TI - Treatment of rheumatoid arthritis with biological agents - as a typical and common immune-mediated inflammatory disease. AB - Molecules involved in the disease process facilitated our understanding of pathogenesis of the disease with unknown etiology such as immune-mediated and inflammatory diseases. Moreover, the targeted therapies against the proposed molecular targets by biological agents provide enormous benefits to the patients and societies. Here, I will review recent progress of the biological treatment in the immune-inflammatory diseases by focusing on the rheumatoid arthritis, the disease characterized by persistent polyarthritis leading to joint destruction and disability with autoimmune features, as a role model. PMID- 29021509 TI - Nucleotide-binding oligomerization domain 1 and gastrointestinal disorders. AB - Nucleotide-binding oligomerization domain 1 (NOD1) is an intracellular sensor that detects small peptides derived from the cell wall component of intestinal microflora. NOD1 is expressed in both non-hematopoietic cells such as epithelial cells and hematopoietic cells such as antigen-presenting cells. Detection of its ligand by NOD1 leads to innate immune responses through activation of nuclear factor kappa B and type I interferon as well as induction of autophagy. Innate immune responses through NOD1 activation play an indispensable role both in host defense against microbial infection and in the development of gastrointestinal disorders. Of particular importance, NOD1-mediated innate immune responses are associated with mucosal host defenses against Helicobacter pylori (H. pylori) infection of the stomach and with the development of pancreatitis. In this review, we discuss the molecular mechanisms by which NOD1 activation leads to the development of H. pylori-related gastric diseases and pancreatitis. PMID- 29021513 TI - New synthesis of a stereoisomeric mixture of methyl 12-trishomofarnesoate, a juvenile hormone mimic useful in sericulture by increasing silk production. AB - A mixture of (E,Z)-isomers of methyl 12-trishomofarnesoate (methyl 3,7,11 trimethyl-2,6,10-pentadecatrienoate), a juvenile hormone mimic, was synthesized in nine steps (32.6% overall yield) by starting from only four commercially available materials: 2-hexanone, vinylmagnesium bromide, methyl acetoacetate and trimethyl phosphonoacetate. The mimic is useful in increasing the yield of silk by elongating the larval period of the silkworm, Bombyx mori (L.). PMID- 29021512 TI - Dynamic mechanisms driving conformational conversions of the beta and epsilon subunits involved in rotational catalysis of F1-ATPase. AB - F-type ATPase is a ubiquitous molecular motor. Investigations on thermophilic F1 ATPase and its subunits, beta and epsilon, by NMR were reviewed. Using specific isotope labeling, pKa of the putative catalytic carboxylate in beta was estimated. Segmental isotope-labeling enabled us to monitor most residues of beta, revealing that the conformational conversion from open to closed form of beta on nucleotide binding found in ATPase was an intrinsic property of beta and could work as a driving force of the rotational catalysis. A stepwise conformational change was driven by switching of the hydrogen bond networks involving Walker A and B motifs. Segmentally labeled ATPase provided a well resolved NMR spectra, revealing while the open form of beta was identical for beta monomer and ATPase, its closed form could be different. ATP-binding was also a critical factor in the conformational conversion of epsilon, an ATP hydrolysis inhibitor. Its structural elucidation was described. PMID- 29021511 TI - Overcoming sleep disordered breathing and ensuring sufficient good sleep time for a healthy life expectancy. AB - Recent advances in basic and clinical medicine have resulted in major improvements in human health. Currently sleep has been considered an essential factor in maintaining and promoting a healthy life expectancy. Sleep disorders include more than 60 diseases. Sleep disordered breathings (SDB) have 17 disorders, including sleep apnea. SDB usually induces hypoxemia and hypercapnia, which would have significant effects on cells, organs, and the whole body. We have investigated SDB for nearly 35 years. We found that SDB has significant associations with humoral factors, including coagulation systems, the body's protective factors against diseases, and metabolic and organ diseases. Currently we have been giving attention to the associations among SDB, short sleep duration, and obesity. In addition, SDB is important not only in the home but under critical care such as in the perioperative stage. In this review, I would like to describe several aspects of SDB in relation to systemic diseases and overall health based mainly on our published reports. PMID- 29021514 TI - Characteristics and Prognosis of Patients with Immunoglobulin M Monoclonal Gammopathy. AB - Many patients with immunoglobulin M (IgM) monoclonal gammopathy remain asymptomatic and, consequently, untreated; however, few studies have evaluated the clinical course and prognosis of these patients. Using the screening procedures at our hospital, 74 patients with IgM monoclonal gammopathy were selected. We excluded 11 patients in whom the treatment for lymphoid neoplasms had been initiated at the time of IgM monoclonal protein detection. The remaining 63 patients were considered to be the patient population with IgM MGUS and asymptomatic WM, and were analyzed. In these patients, the median overall survival was longer than 14 years. More than half of these patients died from causes other than lymphoid neoplasm. The cumulative incidence of lymphoid neoplasm requiring treatment was 17.5%. In five of eight patients requiring treatment for lymphoid neoplasms, the causes of death were related with these lymphoid neoplasms. Our study suggests that not all patients with IgM monoclonal gammopathy require uniform treatment for prolonged survival; however, most lymphoid neoplasms requiring treatment are refractory diseases. Our findings may help manage patients with macroglobulinemia. PMID- 29021515 TI - Clinicopathological Analysis of 320 Cases of Diffuse Large B-cell Lymphoma Using the Hans Classifier. AB - The estimation of clinical prognosis for diffuse large B-cell lymphoma (DLBCL) with a quick, cost-efficient method is necessary because of the clinical heterogeneity of this disease, which leads to death, relapsed or refractory disease in approximately 40% of patients. We analyzed 320 cases diagnosed from 2007 to 2013 treated with R-CHOP therapy at Tokai University Hospital and associated institutions. DLBCL was classified according to the cell-of-origin using the Hans algorithm [germinal center B-cell-like (GCB) vs non-GCB subtypes], and into 6 subgroups derived from combinations of CD10, BCL6 and MUM1 markers. The percentage of GCB and non-GCB (NGCB) subtypes was 35% and 65%, respectively. GCB-DLBCL was characterized by lower BCL2 immunohistochemical expression, extranodal sites <1, better therapeutic response, and favorable overall survival (OS) and progression free survival (PFS) (P<0.01). The most frequent subgroup was NGCB-1 (CD10-BCL6+MUM1+, 51%) followed by GCB-1 (CD10+BCL6+or-MUM1+, 21%), NGCB-2 (CD10-BCL6-MUM1+, 13%), GCB-2 (CD10+BCL6+or-MUM1-, 10%), GCB-3 (CD10-BCL6+MUM1-, 4%) and NGCB-3 (CD10-BCL6-MUM1-, 2%). In comparison with GCB-2 and GCB-3 (both MUM1-), the GCB-1 (MUM1+) was characterized by favorable PFS (5-year PFS 84% vs 65%, OR 0.368, P<0.05), independent of high LDH (associated with unfavorable PFS, OR 7.04, P<0.01) in the multivariate analysis. This predictive value of MUM1 was independent of CD10. Interestingly, triple-negative NGCB-3 tended to have a more favorable prognosis than the other NGCB subgroups. In conclusion, the Hans classifier is a valid method to evaluate the prognosis of DLBCL NOS. In the GCB subtypes, GCB subtypes, MUM1-positivity is associated with a more favorable outcome (PFS). PMID- 29021517 TI - A RARE CASE OF MIXED PHENOTYPE ACUTE LEUKEMIA- B/T CELL TYPE. PMID- 29021516 TI - Human herpesvirus 8-unrelated primary effusion lymphoma-like lymphoma following tyrosine kinase inhibitor treatment for chronic myelogenous leukemia. AB - A 69-year-old man was diagnosed with chronic myelogenous leukemia (CML) and treated with dasatinib. After two years on dasatinib, the patient achieved complete molecular response, but dasatinib treatment was discontinued due to exacerbation of pleural effusion. Nilotinib and imatinib were started but stopped due to an increase in pleural effusion. Thoracentesis was performed and he was diagnosed with human herpesvirus 8-unrelated primary effusion lymphoma (PEL)-like lymphoma. Complex chromosomal abnormality, including BCL6 rearrangement, was found on chromosome analysis. To the best of our knowledge, this is the first report of PEL-like lymphoma following tyrosine kinase inhibitor treatment for CML. PMID- 29021518 TI - The Lethal Spanish Influenza Pandemic in Poland. AB - The Spanish influenza pandemic in the years 1918-1920 was the largest and most tragic pandemic of infectious disease in human history. Deciphering the structure of the virus (including the determination of complete genome sequence) of this pandemic and the phylogenetic analysis and explanation of its virulence became possible thanks to molecular genetic analysis of the virus isolated from the fixed and frozen lung tissue of influenza victims who died in 1918 and were buried frozen in Alaska and Spitsbergen. Epidemiological data from the course of this pandemic in Poland have not been previously published. For analysis, we used source materials such as clinical studies and case reports of doctors fighting against the pandemic and registries of influenza cases in units of the Polish Army and military hospitals. Clinically, the pandemic of 1918 was characterized by the same symptoms and course as influenza in other years. Pathologically, the disease was similar to the other pandemic, in that the destruction was mostly limited to the respiratory tract. The "Spanish" influenza pandemic of 1918-1920 took place in Poland in 3 epidemic waves. The peaks of morbidity and mortality occurred in the capital, Warsaw, in December 1918 and in December 1919 to January 1920. It is estimated that throughout the pandemic period of 1918-1920 in Poland, 200 000 to 300 000 people died. PMID- 29021519 TI - Bone Marrow Mononuclear Cells Transplantation in Treatment of Established Bronchopulmonary Dysplasia: A Case Report. AB - BACKGROUND Bronchopulmonary dysplasia (BDP) is an incurable disease. This study reports the successful treatment of a 30-week-old neonate with established bronchopulmonary dysplasia by bone marrow mononuclear cells (BM MNCs) transplantation. CASE REPORT The preterm infant with BPD requiring continuous oxygen administration for 4 months post-delivery underwent BM MNCs. Bone marrow was obtained from the patient's iliac crests and mononuclear cells were isolated by density gradient centrifugation method. BM MNCs were delivered via endotracheal and intravenous routes. After BM MNCs transplantation, remarkable improvements were observed in oxygen saturation and lung CT as the infant was gradually weaned off oxygen supply. CONCLUSIONS BM MNCs transplantation offers promising treatment of BPD. PMID- 29021520 TI - HDAC6 inhibition reverses axonal transport defects in motor neurons derived from FUS-ALS patients. AB - Amyotrophic lateral sclerosis (ALS) is a rapidly progressive neurodegenerative disorder due to selective loss of motor neurons (MNs). Mutations in the fused in sarcoma (FUS) gene can cause both juvenile and late onset ALS. We generated and characterized induced pluripotent stem cells (iPSCs) from ALS patients with different FUS mutations, as well as from healthy controls. Patient-derived MNs show typical cytoplasmic FUS pathology, hypoexcitability, as well as progressive axonal transport defects. Axonal transport defects are rescued by CRISPR/Cas9 mediated genetic correction of the FUS mutation in patient-derived iPSCs. Moreover, these defects are reproduced by expressing mutant FUS in human embryonic stem cells (hESCs), whereas knockdown of endogenous FUS has no effect, confirming that these pathological changes are mutant FUS dependent. Pharmacological inhibition as well as genetic silencing of histone deacetylase 6 (HDAC6) increase alpha-tubulin acetylation, endoplasmic reticulum (ER) mitochondrial overlay, and restore the axonal transport defects in patient derived MNs.Amyotrophic lateral sclerosis (ALS) leads to selective loss of motor neurons. Using motor neurons derived from induced pluripotent stem cells from patients with ALS and FUS mutations, the authors demonstrate that axonal transport deficits that are observed in these cells can be rescued by HDAC6 inhibition. PMID- 29021521 TI - Tristetraprolin inhibits macrophage IL-27-induced activation of antitumour cytotoxic T cell responses. AB - IFN-gamma-producing cytotoxic T lymphocytes are essential for host defense against viral infection and cancer. Here we show that the RNA-binding tristetraprolin, encoded by Zfp36, is needed for CD8+ T-cell production of IFN gamma in vivo. When activated in vitro, however, IFN-gamma production by naive wild type and tristetraprolin-deficient CD8+ T-cells is comparable. IL-27 is overproduced by tristetraprolin-deficient macrophages and increased systemically in tristetraprolin-deficient mice. Tristetraprolin suppresses IL-27 production by promoting p28 mRNA degradation. Importantly, deletion of IL-27 receptor WSX-1 in tristetraprolin-deficient mice (WSX-1/tristetraprolin double knockout) leads to a reduction in cytotoxic T lymphocyte numbers. Moreover, tumor growth is accelerated, not only in tristetraprolin-deficient mice after cytotoxic T lymphocyte depletion, but also in WSX-1/tristetraprolin double knockout mice, with substantial reduction in the number of tumor cytotoxic T lymphocytes. This study describes a regulatory pathway for IL-27 expression and cytotoxic T lymphocyte function mediated by tristetraprolin, contributing to regulation of antitumour immunity.IL-27 is one of a number of cytokines that can induce antitumour CD8+ T cell responses. Here the authors show that TTP, encoded by Zfp36, degrades p28 to inhibit IL-27 production by macrophages and is thereby a negative regulator of the antitumour response. PMID- 29021522 TI - The cholesterol metabolite 27 hydroxycholesterol facilitates breast cancer metastasis through its actions on immune cells. AB - Obesity and elevated circulating cholesterol are risk factors for breast cancer recurrence, while the use of statins, cholesterol biosynthesis inhibitors widely used for treating hypercholesterolemia, is associated with improved disease-free survival. Here, we show that cholesterol mediates the metastatic effects of a high-fat diet via its oxysterol metabolite, 27-hydroxycholesterol. Ablation or inhibition of CYP27A1, the enzyme responsible for the rate-limiting step in 27 hydroxycholesterol biosynthesis, significantly reduces metastasis in relevant animal models of cancer. The robust effects of 27-hydroxycholesterol on metastasis requires myeloid immune cell function, and it was found that this oxysterol increases the number of polymorphonuclear-neutrophils and gammadelta-T cells at distal metastatic sites. The pro-metastatic actions of 27 hydroxycholesterol requires both polymorphonuclear-neutrophils and gammadelta-T cells, and 27-hydroxycholesterol treatment results in a decreased number of cytotoxic CD8+T lymphocytes. Therefore, through its actions on gammadelta-T cells and polymorphonuclear-neutrophils, 27-hydroxycholesterol functions as a biochemical mediator of the metastatic effects of hypercholesterolemia.High cholesterol is a risk factor for breast cancer recurrence. Here the authors show that cholesterol promotes breast cancer metastasis via its metabolite 27 hydroxycholesterol (27HC) that acts on immune myeloid cells residing at the distal metastatic sites, thus promoting an immune suppressive environment. PMID- 29021525 TI - Danshenol A inhibits TNF-alpha-induced expression of intercellular adhesion molecule-1 (ICAM-1) mediated by NOX4 in endothelial cells. AB - ICAM-1 overexpression and subsequent adhesion of leukocytes to endothelial cells play critical roles in the early stage of atherosclerosis. Danshenol A (DA) is an abietane-type diterpenoid isolated from traditional Chinese herb Salvia miltiorrhiza Bunge. The mechanisms under its regulation of adhesion of molecular expression are explored. Here, the effect of DA on TNF-alpha-induced ICAM-1 expression was investigated in endothelial cells. TNF-alpha-induced ICAM-1 expression and subsequent adhesion of monocytes, as well as elevated reactive oxygen species (ROS) generation and NOX4 expression were all significantly reversed by DA, siNOX4 and NOX4 inhibitor GKT137831. Furthermore, TNF-alpha induced ICAM-1 expression, which was increased via IKKbeta/IkappaBalpha-mediated activation of NF-kappaB p65, was also inhibited by DA. Interestingly, NOX4 overexpression suppressed the ICAM-1 expression, and this finding may be ascribed to the activation of Nrf-2. Additionally, NF-kappaB inhibitor PDTC, siNOX4, or DA can decrease the TNF-alpha-induced ICAM-1 expression and suppress the adhesion of monocytes. In all, DA inhibited TNF-alpha-induced ICAM-1 expression and subsequent monocyte adhesion to endothelial cells through the NOX4-dependent IKKbeta/NF-kappaB pathway. Besides, NOX4 played dual role in regulating ICAM-1 expression via diverse signal pathway. This novel bioactivity will make DA a good candidate to be further explored for therapeutic or preventive application for atherosclerosis. PMID- 29021523 TI - High-fidelity DNA replication in Mycobacterium tuberculosis relies on a trinuclear zinc center. AB - High-fidelity DNA replication depends on a proofreading 3'-5' exonuclease that is associated with the replicative DNA polymerase. The replicative DNA polymerase DnaE1 from the major pathogen Mycobacterium tuberculosis (Mtb) uses its intrinsic PHP-exonuclease that is distinct from the canonical DEDD exonucleases found in the Escherichia coli and eukaryotic replisomes. The mechanism of the PHP exonuclease is not known. Here, we present the crystal structure of the Mtb DnaE1 polymerase. The PHP-exonuclease has a trinuclear zinc center, coordinated by nine conserved residues. Cryo-EM analysis reveals the entry path of the primer strand in the PHP-exonuclease active site. Furthermore, the PHP-exonuclease shows a striking similarity to E. coli endonuclease IV, which provides clues regarding the mechanism of action. Altogether, this work provides important insights into the PHP-exonuclease and reveals unique properties that make it an attractive target for novel anti-mycobacterial drugs.The polymerase and histidinol phosphatase (PHP) domain in the DNA polymerase DnaE1 is essential for mycobacterial high-fidelity DNA replication. Here, the authors determine the DnaE1 crystal structure, which reveals the PHP-exonuclease mechanism that can be exploited for antibiotic development. PMID- 29021524 TI - Ecogenomics of virophages and their giant virus hosts assessed through time series metagenomics. AB - Virophages are small viruses that co-infect eukaryotic cells alongside giant viruses (Mimiviridae) and hijack their machinery to replicate. While two types of virophages have been isolated, their genomic diversity and ecology remain largely unknown. Here we use time series metagenomics to identify and study the dynamics of 25 uncultivated virophage populations, 17 of which represented by complete or near-complete genomes, in two North American freshwater lakes. Taxonomic analysis suggests that these freshwater virophages represent at least three new candidate genera. Ecologically, virophage populations are repeatedly detected over years and evolutionary stable, yet their distinct abundance profiles and gene content suggest that virophage genera occupy different ecological niches. Co-occurrence analyses reveal 11 virophages strongly associated with uncultivated Mimiviridae, and three associated with eukaryotes among the Dinophyceae, Rhizaria, Alveolata, and Cryptophyceae groups. Together, these findings significantly augment virophage databases, help refine virophage taxonomy, and establish baseline ecological hypotheses and tools to study virophages in nature.Virophages are recently-identified small viruses that infect larger viruses, yet their diversity and ecological roles are poorly understood. Here, Roux and colleagues present time series metagenomics data revealing new virophage genera and their putative ecological interactions in two freshwater lakes. PMID- 29021526 TI - Anodal tDCS applied during multitasking training leads to transferable performance gains. AB - Cognitive training can lead to performance improvements that are specific to the tasks trained. Recent research has suggested that transcranial direct current stimulation (tDCS) applied during training of a simple response-selection paradigm can broaden performance benefits to an untrained task. Here we assessed the impact of combined tDCS and training on multitasking, stimulus-response mapping specificity, response-inhibition, and spatial attention performance in a cohort of healthy adults. Participants trained over four days with concurrent tDCS - anodal, cathodal, or sham - applied to the left prefrontal cortex. Immediately prior to, 1 day after, and 2 weeks after training, performance was assessed on the trained multitasking paradigm, an untrained multitasking paradigm, a go/no-go inhibition task, and a visual search task. Training combined with anodal tDCS, compared with training plus cathodal or sham stimulation, enhanced performance for the untrained multitasking paradigm and visual search tasks. By contrast, there were no training benefits for the go/no-go task. Our findings demonstrate that anodal tDCS combined with multitasking training can extend to untrained multitasking paradigms as well as spatial attention, but with no extension to the domain of response inhibition. PMID- 29021527 TI - Operando Multi-modal Synchrotron Investigation for Structural and Chemical Evolution of Cupric Sulfide (CuS) Additive in Li-S battery. AB - Conductive metal sulfides are promising multi-functional additives for future lithium-sulfur (Li-S) batteries. These can increase the sulfur cathode's electrical conductivity to improve the battery's power capability, as well as contribute to the overall cell-discharge capacity. This multi-functional electrode design showed initial promise; however, complicated interactions at the system level are accompanied by some detrimental side effects. The metal sulfide additives with a chemical conversion as the reaction mechanism, e.g., CuS and FeS2, can increase the theoretical capacity of the Li-S system. However, these additives may cause undesired parasitic reactions, such as the dissolution of the additive in the electrolyte. Studying such complex reactions presents a challenge because it requires experimental methods that can track the chemical and structural evolution of the system during an electrochemical process. To address the fundamental mechanisms in these systems, we employed an operando multimodal x ray characterization approach to study the structural and chemical evolution of the metal sulfide-utilizing powder diffraction and fluorescence imaging to resolve the former and absorption spectroscopy the latter-during lithiation and de-lithiation of a Li-S battery with CuS as the multi-functional cathode additive. The resulting elucidation of the structural and chemical evolution of the system leads to a new description of the reaction mechanism. PMID- 29021528 TI - Forecasting the onset and course of mental illness with Twitter data. AB - We developed computational models to predict the emergence of depression and Post Traumatic Stress Disorder in Twitter users. Twitter data and details of depression history were collected from 204 individuals (105 depressed, 99 healthy). We extracted predictive features measuring affect, linguistic style, and context from participant tweets (N = 279,951) and built models using these features with supervised learning algorithms. Resulting models successfully discriminated between depressed and healthy content, and compared favorably to general practitioners' average success rates in diagnosing depression, albeit in a separate population. Results held even when the analysis was restricted to content posted before first depression diagnosis. State-space temporal analysis suggests that onset of depression may be detectable from Twitter data several months prior to diagnosis. Predictive results were replicated with a separate sample of individuals diagnosed with PTSD (Nusers = 174, Ntweets = 243,775). A state-space time series model revealed indicators of PTSD almost immediately post trauma, often many months prior to clinical diagnosis. These methods suggest a data-driven, predictive approach for early screening and detection of mental illness. PMID- 29021529 TI - Endogenously generated 2-aminoacrylate inhibits motility in Salmonella enterica. AB - Members of the broadly distributed Rid/YER057c/UK114 protein family have imine/enamine deaminase activity, notably on 2-aminoacrylate (2AA). Strains of Salmonella enterica, and other organisms lacking RidA, have diverse growth phenotypes, attributed to the accumulation of 2AA. In S. enterica, 2AA inactivates a number of pyridoxal 5'-phosephate(PLP)-dependent enzymes, some of which have been linked to the growth phenotypes of a ridA mutant. This study used transcriptional differences between S. enterica wild-type and ridA strains to explore the breadth of the cellular consequences that resulted from accumulation of 2AA. Accumulation of endogenously generated 2AA in a ridA mutant resulted in lower expression of genes encoding many flagellar assembly components, which led to a motility defect. qRT-PCR results were consistent with the motility phenotype of a ridA mutant resulting from a defect in FlhD4C2 activity. In total, the results of comparative transcriptomics correctly predicted a 2AA-dependent motility defect and identified additional areas of metabolism impacted by the metabolic stress of 2AA in Salmonella enterica. Further, the data emphasized the value of integrating global approaches with biochemical genetic approaches to understand the complex system of microbial metabolism. PMID- 29021530 TI - SHH signaling directed by two oral epithelium-specific enhancers controls tooth and oral development. AB - Interaction between the epithelium and mesenchyme coordinates patterning and differentiation of oral cavity structures including teeth, palatal rugae and tongue papillae. SHH is one of the key signaling molecules for this interaction. Epithelial expression of Shh in the tooth buds and tongue papillae is regulated by at least two enhancers, MRCS1 and MFCS4. However, it is unclear how the two enhancers cooperate to regulate Shh. Here, we found that simultaneous deletion of MRCS1 and MFCS4 results in the formation of a supernumerary tooth in front of the first molar. Since deletion of either single enhancer barely affects tooth development, MRCS1 and MFCS4 evidently act in a redundant fashion. Binding motifs for WNT signaling mediators are shared by MRCS1 and MFCS4, and play a central role in regulating Shh expression, indicating that the two redundant enhancers additively exert their Shh regulation by responding to WNT signal input. PMID- 29021531 TI - Correlation of X-ray diffraction signatures of breast tissue and their histopathological classification. AB - This pilot study examines the correlation of X-ray diffraction (XRD) measurements with the histopathological analysis of breast tissue. Eight breast cancer samples were investigated. Each sample contained a mixture of normal and cancerous tissues. In total, 522 separate XRD measurements were made at different locations across the samples (8 in total). The resulting XRD spectra were subjected to principal component analysis (PCA) in order to determine if there were any distinguishing features that could be used to identify different tissue components. 99.0% of the variation between the spectra were described by the first two principal components (PC). Comparing the location of points in PC space with the classification determined by histopathology indicated correlation between the shape/magnitude of the XRD spectra and the tissue type. These results are encouraging and suggest that XRD could be used for the intraoperative or postoperative classification of bulk tissue samples. PMID- 29021532 TI - Monocyte-lymphocyte cross-communication via soluble CD163 directly links innate immune system activation and adaptive immune system suppression following ischemic stroke. AB - CD163 is a scavenger receptor expressed on innate immune cell populations which can be shed from the plasma membrane via the metalloprotease ADAM17 to generate a soluble peptide with lympho-inhibitory properties. The purpose of this study was to investigate CD163 as a possible effector of stroke-induced adaptive immune system suppression. Liquid biopsies were collected from ischemic stroke patients (n = 39), neurologically asymptomatic controls (n = 20), and stroke mimics (n = 20) within 24 hours of symptom onset. Peripheral blood ADAM17 activity and soluble CD163 levels were elevated in stroke patients relative to non-stroke control groups, and negatively associated with post-stroke lymphocyte counts. Subsequent in vitro experiments suggested that this stroke-induced elevation in circulating soluble CD163 likely originates from activated monocytic cells, as serum from stroke patients stimulated ADAM17-dependant CD163 shedding from healthy donor-derived monocytes. Additional in vitro experiments demonstrated that stroke-induced elevations in circulating soluble CD163 can elicit direct suppressive effects on the adaptive immune system, as serum from stroke patients inhibited the proliferation of healthy donor-derived lymphocytes, an effect which was attenuated following serum CD163 depletion. Collectively, these observations provide novel evidence that the innate immune system employs protective mechanisms aimed at mitigating the risk of post-stroke autoimmune complications driven by adaptive immune system overactivation, and that CD163 is key mediator of this phenomenon. PMID- 29021533 TI - An integrated microfluidic system using a micro-fluxgate and micro spiral coil for magnetic microbeads trapping and detecting. AB - We report an innovative integrated microfluidic platform based on micro-fluxgate and micro-coils for trapping and detecting magnetic beads. A micro-spiral coil fabricated by microfabrication technology is used to trap the magnetic beads, and the micro-fluxgate is employed to detect the weak magnetic field induced by the trapped magnetic beads. The fabrication process of the magnetic bead trapping system using a micro-coil is highly compatible with that of the micro-fluxgate sensor, making fabrication of this integrated microfluidic system convenient and efficient. It is observed that the magnetic bead trapping ratio increases as the number of magnetic beads is increased with a flow rate of 5 to 16.5 MUL.min-1. Samples spiked with different concentrations of magnetic beads can be distinguished clearly using the micro-fluxgate sensor in this microfluidic system. In this study, the results demonstrate that the microfluidic system traps and detects magnetic beads efficiently and is a promising candidate for biomarker capture and detection. PMID- 29021534 TI - Quorum sensing integrates environmental cues, cell density and cell history to control bacterial competence. AB - Streptococcus pneumoniae becomes competent for genetic transformation when exposed to an autoinducer peptide known as competence-stimulating peptide (CSP). This peptide was originally described as a quorum-sensing signal, enabling individual cells to regulate competence in response to population density. However, recent studies suggest that CSP may instead serve as a probe for sensing environmental cues, such as antibiotic stress or environmental diffusion. Here, we show that competence induction can be simultaneously influenced by cell density, external pH, antibiotic-induced stress, and cell history. Our experimental data is explained by a mathematical model where the environment and cell history modify the rate at which cells produce or sense CSP. Taken together, model and experiments indicate that autoinducer concentration can function as an indicator of cell density across environmental conditions, while also incorporating information on environmental factors or cell history, allowing cells to integrate cues such as antibiotic stress into their quorum-sensing response. This unifying perspective may apply to other debated quorum-sensing systems.Peptide CSP regulates natural competence in pneumococci and has been proposed as a quorum-sensing signal or a probe for sensing environmental cues. Here, the authors show that CSP levels can indeed act as an indicator of cell density and also incorporate information on environmental factors or cell history. PMID- 29021535 TI - The autophagy scaffold protein ALFY is critical for the granulocytic differentiation of AML cells. AB - Acute myeloid leukemia (AML) is a malignancy of myeloid progenitor cells that are blocked in differentiation. Acute promyelocytic leukemia (APL) is a rare form of AML, which generally presents with a t(15;17) translocation causing expression of the fusion protein PML-RARA. Pharmacological doses of all-trans retinoic acid (ATRA) induce granulocytic differentiation of APL cells leading to cure rates of >80% if combined with conventional chemotherapy. Autophagy is a lysosomal degradation pathway for the removal of cytoplasmic content and recycling of macromolecules. ATRA induces autophagy in ATRA-sensitive AML and APL cells and autophagy inhibition attenuates ATRA-triggered differentiation. In this study, we aimed at identifying if the autophagy-linked FYVE-domain containing protein (ALFY/WDFY3) is involved in autophagic degradation of protein aggregates contributes to ATRA therapy-induced autophagy. We found that ALFY mRNA levels increase significantly during the course of ATRA-induced differentiation of APL and AML cell lines. Importantly ALFY depletion impairs ATRA-triggered granulocytic differentiation of these cells. In agreement with its function in aggrephagy, knockdown of ALFY results in reduced ATRA-induced proteolysis. Our data further suggest that PML-RARalpha is an autophagy substrate degraded with the help of ALFY. In summary, we present a crucial role for ALFY in retinoid triggered maturation of AML cells. PMID- 29021536 TI - EEG Transients in the Sigma Range During non-REM Sleep Predict Learning in Dogs. AB - Sleep spindles are phasic bursts of thalamo-cortical activity, visible in the cortex as transient oscillations in the sigma range (usually defined in humans as 12-14 or 9-16 Hz). They have been associated with sleep-dependent memory consolidation and sleep stability in humans and rodents. Occurrence, frequency, amplitude and duration of sleep spindles co-vary with age, sex and psychiatric conditions. Spindle analogue activity in dogs has been qualitatively described, but never quantified and related to function. In the present study we used an adjusted version of a detection method previously validated in children to test whether detections in the dogs show equivalent functional correlates as described in the human literature. We found that the density of EEG transients in the 9-16 Hz range during non-REM sleep relates to memory and is characterized by sexual dimorphism similarly as in humans. The number of transients/minute was larger in the learning condition and for female dogs, and correlated with the increase of performance during recall. It can be concluded that in dogs, automatic detections in the 9-16 Hz range, in particular the slow variant (<13 Hz), are functional analogues of human spindles. PMID- 29021537 TI - Elevated levels of CCR6+ T helper 22 cells correlate with skin and renal impairment in systemic lupus erythematosus. AB - Systemic lupus erythematosus (SLE) is an autoimmune disease with a variety of pathological features. Our study investigated the potential role of CCR6+ T cells in organ impairment of SLE patients. We analyzed CCR6+/- T cell subset populations and compared the concentrations of IL-22, IFN-gamma, TNF-alpha, and IL-17A cytokines in 67 patients with newly diagnosed SLE and 26 healthy controls. We found that SLE patients had elevated percentages of CCR6+ T, CCR6+ Th22, Th17, Th17.1, and CCR6- Th2 cell subsets, along with increased concentrations of IL-22, IFN-gamma, TNF-alpha, and IL-17 cytokines. Higher levels of CCR6+ T and CCR6+ Th22 cells, along with plasma IL-22 were observed in SLE patients with sole skin and/or renal impairment. The percentage of Th22 cells also correlated with Revised Cutaneous Lupus Erythematosus Disease Area and Severity Index (RCLASI) and IgG levels, and inversely correlated with C3 levels in SLE patients with sole skin impairment. SLE patients with sole renal impairment showed a correlation between the percentage of Th22 cells and ESR levels. Our data indicated that CCR6+ Th22 cells may contribute to the pathogenesis of new onset SLE patients with skin or renal impairment, and CCR6 may, thus, be a possible therapeutic target for SLE treatment. PMID- 29021538 TI - The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle. AB - Different proportions of mineral ions in saliva can influence the protective effect the salivary pellicle provides against dental erosion. To investigate the effect of different calcium concentrations in human saliva on the protection against enamel erosion, enamel specimens were divided into 8 treatment groups: humid chamber (Ctrl); whole mouth stimulated human saliva (HS); artificial saliva containing different calcium concentrations (ASlow, ASmedium, AShigh); and dialysed human saliva containing different calcium concentrations (DSlow, DSmedium, DShigh). The specimens underwent 4 cycles of incubation in the treatment group followed by an erosive challenge. Surface hardness and calcium release were measured during the cycling process. All DS groups exhibited significantly higher enamel surface softening than HS and the corresponding AS groups. Among the DS groups, the surface softening was significantly higher in DSlow than in DShigh. No significant differences were found within the AS or DS groups regarding calcium release. The results of this study indicated that erosion protection conferred by saliva depends on an interplay between salivary proteins and ions. While both proteins and ions have a positive effect on their own, the combination of the two can lead to different degrees of protection or even negative effects, depending on the relative concentrations. PMID- 29021539 TI - Aerial photography based census of Adelie Penguin and its application in CH4 and N2O budget estimation in Victoria Land, Antarctic. AB - Penguin guano provides favorable conditions for production and emission of greenhouse gases (GHGs). Many studies have been conducted to determine the GHG fluxes from penguin colonies, however, at regional scale, there is still no accurate estimation of total GHG emissions. We used object-based image analysis (OBIA) method to estimate the Adelie penguin (Pygoscelis adeliae) population based on aerial photography data. A model was developed to estimate total GHG emission potential from Adelie penguin colonies during breeding seasons in 1983 and 2012, respectively. Results indicated that OBIA method was effective for extracting penguin information from aerial photographs. There were 17,120 and 21,183 Adelie penguin breeding pairs on Inexpressible Island in 1983 and 2012, respectively, with overall accuracy of the estimation of 76.8%. The main reasons for the increase in Adelie penguin populations were attributed to increase in temperature, sea ice and phytoplankton. The average estimated CH4 and N2O emissions tended to be increasing during the period from 1983 to 2012 and CH4 was the main GHG emitted from penguin colonies. Total global warming potential (GWP) of CH4 and N2O emissions was 5303 kg CO2-eq in 1983 and 6561 kg CO2-eq in 2012, respectively. PMID- 29021540 TI - Efficient Single-Photon Coupling from a Nitrogen-Vacancy Center Embedded in a Diamond Nanowire Utilizing an Optical Nanofiber. AB - Nitrogen-Vacancy (NV) centers in diamond are promising solid-state quantum emitters that can be utilized for photonic quantum applications. Various diamond nanophotonic devices have been fabricated for efficient extraction of single photons emitted from NV centers to a single guided mode. However, for constructing scalable quantum networks, further efficient coupling of single photons to a guided mode of a single-mode fiber (SMF) is indispensable and a difficult challenge. Here, we propose a novel efficient hybrid system between an optical nanofiber and a cylindrical-structured diamond nanowire. The maximum coupling efficiency as high as 75% for the sum of both fiber ends is obtained by numerical simulations. The proposed hybrid system will provide a simple and efficient interface between solid-state quantum emitters and a SMF suitable for constructing scalable quantum networks. PMID- 29021541 TI - Trade routes and plague transmission in pre-industrial Europe. AB - Numerous historical works have mentioned that trade routes were to blame for the spread of plague in European history, yet this relationship has never been tested by quantitative evidence. Here, we resolve the hypothetical role of trade routes through statistical analysis on the geo-referenced major trade routes in the early modern period and the 6,656 geo-referenced plague outbreak records in AD1347-1760. Ordinary Least Square (OLS) estimation results show that major trade routes played a dominant role in spreading plague in pre-industrial Europe. Furthermore, the negative correlation between plague outbreaks and their distance from major trade ports indicates the absence of a permanent plague focus in the inland areas of Europe. Major trade routes decided the major plague outbreak hotspots, while navigable rivers determined the geographic pattern of sporadic plague cases. A case study in Germany indicates that plague penetrated further into Europe through the local trade route network. Based on our findings, we propose the mechanism of plague transmission in historical Europe, which is imperative in demonstrating how pandemics were spread in recent human history. PMID- 29021542 TI - Self-assembly of a parallelogram black phosphorus ribbon into a nanotube. AB - A nanotube from single-layer black phosphorus (BP) has never been discovered in experiments. The present study proposed a method for the fabrication of a BP nanotube (BPNT) from a parallelogram nanoribbon self-assembled on a carbon nanotube (CNT). The nanoribbon has a pair of opposite sides along the third principal direction. According to the numerical simulation via molecular dynamics approach, we discover that a wider BP nanoribbon can form into a series of chiral nanotube by self-assembly upon CNTs with different radii. The radius of a BPNT from the same ribbon has a wide range, and depends on both geometry of the ribbon and the CNT. One can obtain a BPNT with the specified radius by placing the ribbon nearby a given CNT. The method provides a clue for potential fabrication of BPNTs. PMID- 29021543 TI - Robust quantum switch with Rydberg excitations. AB - We develop an approach to realize a quantum switch for Rydberg excitation in atoms with Y- typed level configuration. We find that the steady population on two different Rydberg states can be reversibly exchanged in a controllable way by properly tuning the Rydberg-Rydberg interaction. Moreover, our numerical simulations verify that the switching scheme is robust against spontaneous decay, environmental disturbance, as well as the duration of operation on the interaction, and also a high switching efficiency is quite attainable, which makes it have potential applications in quantum information processing and other Rydberg-based quantum technologies. PMID- 29021544 TI - Selective catalytic dehydration of furfuryl alcohol to 2, 2'-difurfuryl ether using a polyoxometalate catalyst. AB - The spice flavour compound 2, 2'-difurfuryl ether (DFE) is widely utilised in the food industry as it has a coffee-like, nutty, earthy, mushroom-like odour. However, despite intensive research efforts, to date, an environmentally friendly and practical synthetic preparation technique for 2, 2'-difurfuryl ether is still unavailable. Here, we investigate a new approach using polyoxometalate catalysts to selectively catalytically dehydrate furfuryl alcohol to 2, 2'-difurfuryl ether. We have successfully applied this methodology using the polyoxometalate (POMs) catalyst {[(CH3CH2CH2CH2)4N]2[SMo12O40]} to produce 2,2'-difurfuryl ether in a 30.86% isolated yield. PMID- 29021546 TI - Functional maturation in preterm infants measured by serial recording of cortical activity. AB - Minimally invasive, automated cot-side tools for monitoring early neurological development can be used to guide individual treatment and benchmark novel interventional studies. We develop an automated estimate of the EEG maturational age (EMA) for application to serial recordings in preterm infants. The EMA estimate was based on a combination of 23 computational features estimated from both the full EEG recording and a period of low EEG activity (46 features in total). The combination function (support vector regression) was trained using 101 serial EEG recordings from 39 preterm infants with a gestational age less than 28 weeks and normal neurodevelopmental outcome at 12 months of age. EEG recordings were performed from 24 to 38 weeks post-menstrual age (PMA). The correlation between the EMA and the clinically determined PMA at the time of EEG recording was 0.936 (95%CI: 0.932-0.976; n = 39). All infants had an increase in EMA between the first and last EEG recording and 57/62 (92%) of repeated measures within an infant had an increasing EMA with PMA of EEG recording. The EMA is a surrogate measure of age that can accurately determine brain maturation in preterm infants. PMID- 29021547 TI - Photonic Sorting of Aligned, Crystalline Carbon Nanotube Textiles. AB - Floating catalyst chemical vapor deposition uniquely generates aligned carbon nanotube (CNT) textiles with individual CNT lengths magnitudes longer than competing processes, though hindered by impurities and intrinsic/extrinsic defects. We present a photonic-based post-process, particularly suited for these textiles, that selectively removes defective CNTs and other carbons not forming a threshold thermal pathway. In this method, a large diameter laser beam rasters across the surface of a partly aligned CNT textile in air, suspended from its ends. This results in brilliant, localized oxidation, where remaining material is an optically transparent film comprised of few-walled CNTs with profound and unique improvement in microstructure alignment and crystallinity. Raman spectroscopy shows substantial D peak suppression while preserving radial breathing modes. This increases the undoped, specific electrical conductivity at least an order of magnitude to beyond that of single-crystal graphite. Cryogenic conductivity measurements indicate intrinsic transport enhancement, opposed to simply removing nonconductive carbons/residual catalyst. PMID- 29021545 TI - The metabolic enzyme fructose-1,6-bisphosphate aldolase acts as a transcriptional regulator in pathogenic Francisella. AB - The enzyme fructose-bisphosphate aldolase occupies a central position in glycolysis and gluconeogenesis pathways. Beyond its housekeeping role in metabolism, fructose-bisphosphate aldolase has been involved in additional functions and is considered as a potential target for drug development against pathogenic bacteria. Here, we address the role of fructose-bisphosphate aldolase in the bacterial pathogen Francisella novicida. We demonstrate that fructose bisphosphate aldolase is important for bacterial multiplication in macrophages in the presence of gluconeogenic substrates. In addition, we unravel a direct role of this metabolic enzyme in transcription regulation of genes katG and rpoA, encoding catalase and an RNA polymerase subunit, respectively. We propose a model in which fructose-bisphosphate aldolase participates in the control of host redox homeostasis and the inflammatory immune response.The enzyme fructose-bisphosphate aldolase (FBA) plays central roles in glycolysis and gluconeogenesis. Here, Ziveri et al. show that FBA of the pathogen Francisella novicida acts, in addition, as a transcriptional regulator and is important for bacterial multiplication in macrophages. PMID- 29021548 TI - A self-avoiding walk with neural delays as a model of fixational eye movements. AB - Fixational eye movements show scaling behaviour of the positional mean-squared displacement with a characteristic transition from persistence to antipersistence for increasing time-lag. These statistical patterns were found to be mainly shaped by microsaccades (fast, small-amplitude movements). However, our re analysis of fixational eye-movement data provides evidence that the slow component (physiological drift) of the eyes exhibits scaling behaviour of the mean-squared displacement that varies across human participants. These results suggest that drift is a correlated movement that interacts with microsaccades. Moreover, on the long time scale, the mean-squared displacement of the drift shows oscillations, which is also present in the displacement auto-correlation function. This finding lends support to the presence of time-delayed feedback in the control of drift movements. Based on an earlier non-linear delayed feedback model of fixational eye movements, we propose and discuss different versions of a new model that combines a self-avoiding walk with time delay. As a result, we identify a model that reproduces oscillatory correlation functions, the transition from persistence to antipersistence, and microsaccades. PMID- 29021550 TI - The effects of heterogeneity on stochastic cycles in epidemics. AB - Models of biological processes are often subject to different sources of noise. Developing an understanding of the combined effects of different types of uncertainty is an open challenge. In this paper, we study a variant of the susceptible-infective-recovered model of epidemic spread, which combines both agent-to-agent heterogeneity and intrinsic noise. We focus on epidemic cycles, driven by the stochasticity of infection and recovery events, and study in detail how heterogeneity in susceptibilities and propensities to pass on the disease affects these quasi-cycles. While the system can only be described by a large hierarchical set of equations in the transient regime, we derive a reduced closed set of equations for population-level quantities in the stationary regime. We analytically obtain the spectra of quasi-cycles in the linear-noise approximation. We find that the characteristic frequency of these cycles is typically determined by population averages of susceptibilities and infectivities, but that their amplitude depends on higher-order moments of the heterogeneity. We also investigate the synchronisation properties and phase lag between different groups of susceptible and infected individuals. PMID- 29021549 TI - Protease resistance of porcine acidic mammalian chitinase under gastrointestinal conditions implies that chitin-containing organisms can be sustainable dietary resources. AB - Chitin, a polymer of N-acetyl-D-glucosamine (GlcNAc), is a major structural component in chitin-containing organism including crustaceans, insects and fungi. Mammals express two chitinases, chitotriosidase (Chit1) and acidic mammalian chitinase (AMCase). Here, we report that pig AMCase is stable in the presence of other digestive proteases and functions as chitinolytic enzyme under the gastrointestinal conditions. Quantification of chitinases expression in pig tissues using quantitative real-time PCR showed that Chit1 mRNA was highly expressed in eyes, whereas the AMCase mRNA was predominantly expressed in stomach at even higher levels than the housekeeping genes. AMCase purified from pig stomach has highest activity at pH of around 2-4 and remains active at up to pH 7.0. It was resistant to robust proteolytic activities of pepsin at pH 2.0 and trypsin and chymotrypsin at pH 7.6. AMCase degraded polymeric chitin substrates including mealworm shells to GlcNAc dimers. Furthermore, we visualized chitin digestion of fly wings by endogenous AMCase and pepsin in stomach extract. Thus, pig AMCase can function as a protease resistant chitin digestive enzyme at broad pH range present in stomach as well as in the intestine. These results indicate that chitin-containing organisms may be a sustainable feed ingredient in pig diet. PMID- 29021551 TI - The utility of bioenergetics modelling in quantifying predation rates of marine apex predators: Ecological and fisheries implications. AB - Predators play a crucial role in the structure and function of ecosystems. However, the magnitude of this role is often unclear, particularly for large marine predators, as predation rates are difficult to measure directly. If relevant biotic and abiotic parameters can be obtained, then bioenergetics modelling offers an alternative approach to estimating predation rates, and can provide new insights into ecological processes. We integrate demographic and ecological data for a marine apex predator, the broadnose sevengill shark Notorynchus cepedianus, with energetics data from the literature, to construct a bioenergetics model to quantify predation rates on key fisheries species in Norfolk Bay, Australia. We account for the uncertainty in model parameters by incorporating parameter confidence through Monte Carlo simulations and running alternative variants of the model. Model and parameter variants provide alternative estimates of predation rates. Our simplest model estimates that ca. 1130 +/- 137 N. cepedianus individuals consume 11,379 (95% CI: 11,111-11,648) gummy sharks Mustelus antarcticus (~21 tonnes) over a 36-week period in Norfolk Bay, which represents a considerable contribution to total predation mortality on this key fishery species. This study demonstrates how the integration of ecology and fisheries science can provide information for ecosystem and fisheries management. PMID- 29021552 TI - Lifshitz transition from valence fluctuations in YbAl3. AB - In mixed-valent Kondo lattice systems, such as YbAl3, interactions between localized and delocalized electrons can lead to fluctuations between two different valence configurations with changing temperature or pressure. The impact of this change on the momentum-space electronic structure is essential for understanding their emergent properties, but has remained enigmatic. Here, by employing a combination of molecular beam epitaxy and in situ angle-resolved photoemission spectroscopy we show that valence fluctuations can lead to dramatic changes in the Fermi surface topology, even resulting in a Lifshitz transition. As the temperature is lowered, a small electron pocket in YbAl3 becomes completely unoccupied while the low-energy ytterbium (Yb) 4f states become increasingly itinerant, acquiring additional spectral weight, longer lifetimes, and well-defined dispersions. Our work presents a unified picture of how local valence fluctuations connect to momentum-space concepts such as band filling and Fermi surface topology in mixed valence systems.How the electronic structure of a mixed-valence system changes with respect to local chemical environment remains elusive. Here, Chatterjee et al. show that valence fluctuations of YbAl3 can lead to dramatic changes in the Fermi surface topology in reciprocal space. PMID- 29021553 TI - Development of a Cell-Based Assay for Measuring Base Excision Repair Responses. AB - Base excision repair (BER) is the predominant pathway for coping with most forms of hydrolytic, oxidative or alkylative DNA damage. Measuring BER capacity in living cells is valuable for both basic science applications and epidemiological studies, since deficiencies in this pathway have been associated with cancer susceptibility and other adverse health outcomes. At present, there is an ongoing effort to develop methods to effectively quantify the rate of BER as a whole. We present a variation of a previously described "Oligonucleotide Retrieval Assay" designed to measure DNA excision repair that is capable of quantifying the rate of repair of thymine glycol in a variety of human cells with a high degree of sensitivity. PMID- 29021556 TI - Unexpected 3+ valence of iron in FeO2, a geologically important material lying "in between" oxides and peroxides. AB - Recent discovery of the pyrite FeO2, which can be an important ingredient of the Earth's lower mantle and which in particular may serve as an extra source of water in the Earth's interior, opens new perspectives for geophysics and geochemistry, but this is also an extremely interesting material from physical point of view. We found that in contrast to naive expectations Fe is nearly 3+ in this material, which strongly affects its magnetic properties and makes it qualitatively different from well known sulfide analogue - FeS2. Doping, which is most likely to occur in the Earth's mantle, makes FeO2 much more magnetic. In addition we show that unique electronic structure places FeO2 "in between" the usual dioxides and peroxides making this system interesting both for physics and solid state chemistry. PMID- 29021555 TI - Bypassing the Kohn-Sham equations with machine learning. AB - Last year, at least 30,000 scientific papers used the Kohn-Sham scheme of density functional theory to solve electronic structure problems in a wide variety of scientific fields. Machine learning holds the promise of learning the energy functional via examples, bypassing the need to solve the Kohn-Sham equations. This should yield substantial savings in computer time, allowing larger systems and/or longer time-scales to be tackled, but attempts to machine-learn this functional have been limited by the need to find its derivative. The present work overcomes this difficulty by directly learning the density-potential and energy density maps for test systems and various molecules. We perform the first molecular dynamics simulation with a machine-learned density functional on malonaldehyde and are able to capture the intramolecular proton transfer process. Learning density models now allows the construction of accurate density functionals for realistic molecular systems.Machine learning allows electronic structure calculations to access larger system sizes and, in dynamical simulations, longer time scales. Here, the authors perform such a simulation using a machine-learned density functional that avoids direct solution of the Kohn-Sham equations. PMID- 29021554 TI - Human TAUP301L overexpression results in TAU hyperphosphorylation without neurofibrillary tangles in adult zebrafish brain. AB - Microtubule-associated TAU protein is a pathological hallmark in Alzheimer's disease (AD), where hyperphosphorylation of TAU generates neurofibrillary tangles. To investigate the effects of TAU in a regenerative adult vertebrate brain system, we generated a cre/lox-based transgenic model of zebrafish that chronically expresses human TAUP301L, which is a variant of human TAU protein that forms neurofibrillary tangles in mouse models and humans. Interestingly, we found that although chronic and abundant expression of TAUP301L starting from early embryonic development led to hyperphosphorylation, TAUP301L did not form oligomers and neurofibrillary tangles, and did not cause elevated apoptosis and microglial activation, which are classical symptoms of tauopathies in mammals. Additionally, TAUP301L neither increased neural stem cell proliferation nor activated the expression of regenerative factor Interleukin-4, indicating that TAUP301L toxicity is prevented in the adult zebrafish brain. By combining TAUP301L expression with our established Abeta42 toxicity model, we found that Abeta42 ceases to initiate neurofibrillary tangle formation by TAUP301L, and TAUP301L does not exacerbate the toxicity of Abeta42. Therefore, our results propose a cellular mechanism that protects the adult zebrafish brain against tauopathies, and our model can be used to understand how TAU toxicity can be prevented in humans. PMID- 29021557 TI - Plasma-Generated OH Radical Production for Analyzing Three-Dimensional Structure in Protein Therapeutics. AB - Protein three-dimensional structure dynamically changes in solution depending on the presence of ligands and interacting proteins. Methods for detecting these changes in protein conformation include 'protein footprinting,' using mass spectrometry. We describe herein a new technique, PLIMB (Plasma Induced Modification of Biomolecules), that generates us bursts of hydroxyl radicals from water, to measure changes in protein structure via altered solvent accessibility of amino acid side chains. PLIMB was first benchmarked with model compounds, and then applied to a biological problem, i.e., ligand (EGF) induced changes in the conformation of the external (ecto) domain of Epidermal Growth Factor Receptor (EGFR). Regions in which oxidation decreased upon adding EGF fall along the dimerization interface, consistent with models derived from crystal structures. These results demonstrate that plasma-generated hydroxyl radicals from water can be used to map protein conformational changes, and provide a readily accessible means of studying protein structure in solution. PMID- 29021558 TI - Cognition in the field: comparison of reversal learning performance in captive and wild passerines. AB - Animal cognitive abilities have traditionally been studied in the lab, but studying cognition in nature could provide several benefits including reduced stress and reduced impact on life-history traits. However, it is not yet clear to what extent cognitive abilities can be properly measured in the wild. Here we present the first comparison of the cognitive performance of individuals from the same population, assessed using an identical test, but in contrasting contexts: in the wild vs. in controlled captive conditions. We show that free-ranging great tits (Parus major) perform similarly to deprived, captive birds in a successive spatial reversal-learning task using automated operant devices. In both captive and natural conditions, more than half of birds that contacted the device were able to perform at least one spatial reversal. Moreover, both captive and wild birds showed an improvement of performance over successive reversals, with very similar learning curves observed in both contexts for each reversal. Our results suggest that it is possible to study cognitive abilities of wild animals directly in their natural environment in much the same way that we study captive animals. Such methods open numerous possibilities to study and understand the evolution and ecology of cognition in natural populations. PMID- 29021559 TI - Identification of PTPN1 as a novel negative regulator of the JNK MAPK pathway using a synthetic screening for pathway-specific phosphatases. AB - The mitogen activated protein kinase (MAPK) signaling cascades transmit extracellular stimulations to generate various cellular responses via the sequential and reversible phosphorylation of kinases. Since the strength and duration of kinase phosphorylation within the pathway determine the cellular response, both kinases and phosphatases play an essential role in the precise control of MAPK pathway activation and attenuation. Thus, the identification of pathway-specific phosphatases is critical for understanding the functional mechanisms by which the MAPK pathway is regulated. To identify phosphatases specific to the c-Jun N-terminal kinase (JNK) MAPK pathway, a synthetic screening approach was utilized in which phosphatases were individually tethered to the JNK pathway specific-JIP1 scaffold protein. Of 77 mammalian phosphatases tested, PTPN1 led to the inhibition of JNK pathway activation. Further analyses revealed that of three pathway member kinases, PTPN1 directly dephosphorylates JNK, the terminal kinase of the pathway, and negatively regulates the JNK MAPK pathway. Specifically, PTPN1 appears to regulate the overall signaling magnitude, rather than the adaptation timing, suggesting that PTPN1 might be involved in the control and maintenance of signaling noise. Finally, the negative regulation of the JNK MAPK pathway by PTPN1 was found to reduce the tumor necrosis factor alpha (TNFalpha)-dependent cell death response. PMID- 29021561 TI - Ubiquitous transient stagnant domain formation during thermal convection in a well-mixed two component fluid with large viscosity difference. AB - The formation of a transient stagnant domain in the presence of thermal convection was previously reported near the sol-gel transition temperature of a gelatin solution. The transient stagnant domain is observed near a critical Rayleigh number where a "roll" pattern is usually stable. It is important to understand the origin of the transient stagnant domain formation since it induces a large deformation of convection patterns; the nature of the formation of the transient stagnant domain remains unclear. Here, we observe thermal convection using several different fluids and find that stagnant domain formation is ubiquitous in two component mixtures. In addition, we find that difference in viscosity between the two components is crucial for transient stagnant domain formation, more so than the concentration gradient induced by the temperature gradient. PMID- 29021560 TI - The thiazide sensitive sodium chloride co-transporter NCC is modulated by site specific ubiquitylation. AB - The renal sodium chloride cotransporter, NCC, in the distal convoluted tubule is important for maintaining body Na+ and K+ homeostasis. Endogenous NCC is highly ubiquitylated, but the role of individual ubiquitylation sites is not established. Here, we assessed the role of 10 ubiquitylation sites for NCC function. Transient transfections of HEK293 cells with human wildtype (WT) NCC or various K to R mutants identified greater membrane abundance for K706R, K828R and K909R mutants. Relative to WT-NCC, stable tetracycline inducible MDCKI cell lines expressing K706R, K828R and K909R mutants had significantly higher total and phosphorylated NCC levels at the apical plasma membrane under basal conditions. Low chloride stimulation increased membrane abundance of all mutants to similar or greater levels than WT-NCC. Under basal conditions K828R and K909R mutants had less ubiquitylated NCC in the plasma membrane, and all mutants displayed reduced NCC ubiquitylation following low chloride stimulation. Thiazide-sensitive sodium 22 uptakes were elevated in the mutants and internalization from the plasma membrane was significantly less than WT-NCC. K909R had increased half-life, whereas chloroquine or MG132 treatment indicated that K706 and K909 play roles in lysosomal and proteasomal NCC degradation, respectively. In conclusion, site specific ubiquitylation of NCC plays alternative roles for NCC function. PMID- 29021562 TI - The sex pheromone of a globally invasive honey bee predator, the Asian eusocial hornet, Vespa velutina. AB - The Asian hornet, Vespa velutina, is an invasive, globally-distributed predator of European honey bees and other insects. To better under its reproductive biology and to find a specific, effective, and low-impact control method for this species, we identified and tested the key compounds in V. velutina sex pheromone. Virgin gynes (reproductive females) produced this sex pheromone in the sixth intersegmental sternal glands of their abdomens. The active compounds were 4-oxo octanoic acid (4-OOA, 10.4 MUg bee-1) and 4-oxo-decanoic acid (4-ODA, 13.3 MUg bee-1) at a 0.78 ratio of 4-OOA/4-ODA. We synthesized these compounds and showed that male antennae were highly sensitive to them. Moreover, males were only strongly attracted to a 4-OOA/4-ODA blend at the natural ratio produced by gynes. These results provide the first demonstration of an effective way to lure V. velutina males, and the first chemical identification of a sex pheromone in the eusocial hornets. PMID- 29021564 TI - Osmoprotectants, carboxymethylcellulose and hyaluronic acid multi-ingredient eye drop: a randomised controlled trial in moderate to severe dry eye. AB - This corrects the article DOI: 10.1038/eye.2017.73. PMID- 29021565 TI - Psychosis breakthrough on antipsychotic maintenance medication (BAMM): what can we learn? PMID- 29021563 TI - Non-canonical reader modules of BAZ1A promote recovery from DNA damage. AB - Members of the ISWI family of chromatin remodelers mobilize nucleosomes to control DNA accessibility and, in some cases, are required for recovery from DNA damage. However, it remains poorly understood how the non-catalytic ISWI subunits BAZ1A and BAZ1B might contact chromatin to direct the ATPase SMARCA5. Here, we find that the plant homeodomain of BAZ1A, but not that of BAZ1B, has the unusual function of binding DNA. Furthermore, the BAZ1A bromodomain has a non-canonical gatekeeper residue and binds relatively weakly to acetylated histone peptides. Using CRISPR-Cas9-mediated genome editing we find that BAZ1A and BAZ1B each recruit SMARCA5 to sites of damaged chromatin and promote survival. Genetic engineering of structure-designed bromodomain and plant homeodomain mutants reveals that reader modules of BAZ1A and BAZ1B, even when non-standard, are critical for DNA damage recovery in part by regulating ISWI factors loading at DNA lesions and supporting transcriptional programs required for survival.ISWI chromatin remodelers regulate DNA accessibility and have been implicated in DNA damage repair. Here, the authors uncover functions, in response to DNA damage, for the bromodomain of the ISWI subunit BAZ1B and for the non-canonical PHD and bromodomain modules of the paralog BAZ1A. PMID- 29021566 TI - High-throughput screens using photo-highlighting discover BMP signaling in mitochondrial lipid oxidation. AB - High-throughput screens at microscopic resolution can uncover molecular mechanisms of cellular dynamics, but remain technically challenging in live multicellular organisms. Here we present a genetic screening method using photo highlighting for candidate selection on microscopes. We apply this method to stimulated Raman scattering (SRS) microscopy and systematically identify 57 Caenorhabditis elegans mutants with altered lipid distribution. Four of these mutants target the components of the Bone Morphogenetic Protein (BMP) signaling pathway, revealing that BMP signaling inactivation causes exhaustion of lipid reserves in somatic tissues. Using SRS-based isotope tracing assay to quantitatively track lipid synthesis and mobilization, we discover that the BMP signaling mutants have increased rates of lipid mobilization. Furthermore, this increase is associated with the induction of mitochondrial beta-oxidation and mitochondrial fusion. Together these studies demonstrate a photo-highlighting microscopic strategy for genome-scale screens, leading to the discovery of new roles for BMP signaling in linking mitochondrial homeostasis and lipid metabolism.High-throughput genetic screens in animals could benefit from an easy way to mark positive hits. Here the authors introduce photo-highlighting using a photoconvertible fluorescent protein, and in combination with stimulated Raman scattering (SRS) microscopy, define a role for BMP signaling in lipid metabolism in C. elegans. PMID- 29021567 TI - Classical swine fever virus nonstructural protein p7 modulates infectious virus production. AB - The classical swine fever virus (CSFV) nonstructural protein p7 is crucial for virus production, yet precisely how the p7 modulates this process is unclear. In this study, we first identified the interactions of p7 with E2 and NS2. The key binding regions of both p7 and NS2 mapped to the first transmembrane (TM1) domain of two proteins. Three amino acid substitutions in the TM1 region of p7 (p7TDI18/19/20AAA, p7EVV21/22/23AAA and p7YFY25/26/30AAA) impaired infectious virus production and reduced the interaction of p7 with the NS2 protein. The E2p7 processing and mature p7, but not the E2p7 precursor, are essential for infectious virus production. Bicistronic mutants (pSM/E2/IRES) with single substitutions at residues 1 to 9 of p7 exhibited a significantly increased infectious CSFV titer compared to their counterparts in the context of pSM. Viral genomic RNA copies of the mutants exhibited similar levels compared with the wt CSFV. Our results demonstrated that CSFV p7 and its precursor E2p7 modulate viral protein interactions and infectious virus production without influencing viral RNA replication. PMID- 29021569 TI - Cushioning the cartilage: a canonical Wnt restricting matter. AB - Wnt signalling pathways have key roles in joint development, homeostasis and disease, particularly in osteoarthritis. New data is starting to reveal the importance of tightly regulating canonical Wnt signalling pathway activation to maintain homeostasis and health in articular cartilage. In addition to the presence of different Wnt antagonists that limit pathway activation in articular cartilage, the reciprocal crosstalk between the canonical and non-canonical cascades and competitive antagonism between different Wnt ligands seem to be critical in restraining excessive Wnt pathway activation. Changes in transcriptional complex assembly upon Wnt pathway activation, epigenetic modulation of target gene transcription, in particular through histone modifications, and complex interactions between the Wnt signalling pathway and other signalling pathways, are also instrumental in adjusting Wnt signalling. In this Review, the cellular and molecular mechanisms involved in fine-tuning canonical Wnt signalling in the joint are updated, with a focus on the articular cartilage. The interventions for preventing or treating osteoarthritis are also discussed, which should aim to limit disease-associated excessive canonical Wnt activity to avoid joint damage. PMID- 29021570 TI - Paediatric rheumatic disease: Multi-pronged approach uncovers sJIA mechanisms. PMID- 29021568 TI - The brain and immune system prompt energy shortage in chronic inflammation and ageing. AB - Sequelae frequently seen in patients with chronic inflammatory diseases, such as fatigue, depressed mood, sleep alterations, loss of appetite, muscle wasting, cachectic obesity, bone loss and hypertension, can be the result of energy shortages caused by an overactive immune system. These sequelae can also be found in patients with chronic inflammatory diseases that are in remission and in ageing individuals, despite the immune system being less active in these situations. This Perspectives article proposes a new way of understanding situations of chronic inflammation (such as rheumatic diseases) and ageing based on the principles of evolutionary medicine, energy regulation and neuroendocrine immune crosstalk. A conceptual framework is provided to enable physicians and scientists to better understand the signs and symptoms of chronic inflammatory diseases and long-term disease consequences resulting from physical and mental inactivity. PMID- 29021572 TI - Systemic sclerosis: Antiviral drug inhibits lung fibrosis. PMID- 29021571 TI - Crystal arthritis: Crystallizing our ideas about gout and osteoarthritis. PMID- 29021574 TI - Optical cryptography with biometrics for multi-depth objects. AB - We propose an optical cryptosystem for encrypting images of multi-depth objects based on the combination of optical heterodyne technique and fingerprint keys. Optical heterodyning requires two optical beams to be mixed. For encryption, each optical beam is modulated by an optical mask containing either the fingerprint of the person who is sending, or receiving the image. The pair of optical masks are taken as the encryption keys. Subsequently, the two beams are used to scan over a multi-depth 3-D object to obtain an encrypted hologram. During the decryption process, each sectional image of the 3-D object is recovered by convolving its encrypted hologram (through numerical computation) with the encrypted hologram of a pinhole image that is positioned at the same depth as the sectional image. Our proposed method has three major advantages. First, the lost-key situation can be avoided with the use of fingerprints as the encryption keys. Second, the method can be applied to encrypt 3-D images for subsequent decrypted sectional images. Third, since optical heterodyning scanning is employed to encrypt a 3-D object, the optical system is incoherent, resulting in negligible amount of speckle noise upon decryption. To the best of our knowledge, this is the first time optical cryptography of 3-D object images has been demonstrated in an incoherent optical system with biometric keys. PMID- 29021575 TI - Organosulfide-plasticized solid-electrolyte interphase layer enables stable lithium metal anodes for long-cycle lithium-sulfur batteries. AB - Lithium metal is a promising anode candidate for the next-generation rechargeable battery due to its highest specific capacity (3860 mA h g-1) and lowest potential, but low Coulombic efficiency and formation of lithium dendrites hinder its practical application. Here, we report a self-formed flexible hybrid solid electrolyte interphase layer through co-deposition of organosulfides/organopolysulfides and inorganic lithium salts using sulfur containing polymers as an additive in the electrolyte. The organosulfides/organopolysulfides serve as "plasticizer" in the solid-electrolyte interphase layer to improve its mechanical flexibility and toughness. The as formed robust solid-electrolyte interphase layers enable dendrite-free lithium deposition and significantly improve Coulombic efficiency (99% over 400 cycles at a current density of 2 mA cm-2). A lithium-sulfur battery based on this strategy exhibits long cycling life (1000 cycles) and good capacity retention. This study reveals an avenue to effectively fabricate stable solid-electrolyte interphase layer for solving the issues associated with lithium metal anodes.The practical application of lithium metal anodes suffers from the poor Coulombic efficiency and growth of lithium dendrites. Here, the authors report an approach to enable the self-formation of stable and flexible solid-electrolyte interphase layers which serve to address both issues. PMID- 29021573 TI - An NF-kappaB-microRNA regulatory network tunes macrophage inflammatory responses. AB - The innate inflammatory response must be tightly regulated to ensure effective immune protection. NF-kappaB is a key mediator of the inflammatory response, and its dysregulation has been associated with immune-related malignancies. Here, we describe a miRNA-based regulatory network that enables precise NF-kappaB activity in mouse macrophages. Elevated miR-155 expression potentiates NF-kappaB activity in miR-146a-deficient mice, leading to both an overactive acute inflammatory response and chronic inflammation. Enforced miR-155 expression overrides miR-146a mediated repression of NF-kappaB activation, thus emphasizing the dominant function of miR-155 in promoting inflammation. Moreover, miR-155-deficient macrophages exhibit a suboptimal inflammatory response when exposed to low levels of inflammatory stimuli. Importantly, we demonstrate a temporal asymmetry between miR-155 and miR-146a expression during macrophage activation, which creates a combined positive and negative feedback network controlling NF-kappaB activity. This miRNA-based regulatory network enables a robust yet time-limited inflammatory response essential for functional immunity.MicroRNAs (miR) are important regulators of gene transcription, with miR-155 and miR-146a both implicated in macrophage activation. Here the authors show that NF-kappaB signalling, miR-155 and miR-146a form a complex network of cross-regulations to control gene transcription in macrophages for modulating inflammatory responses. PMID- 29021576 TI - The recording and characteristics of pulmonary rehabilitation in patients with COPD using The Health Information Network (THIN) primary care database. AB - : Pulmonary rehabilitation is recommended for patients with COPD to improve physical function, breathlessness and quality of life. Using The Health Information Network (THIN) primary care database in UK, we compared the demographic and clinical parameters of patients with COPD in relation to coding of pulmonary rehabilitation, and to investigate whether there is a survival benefit from pulmonary rehabilitation. We identified patients with COPD, diagnosed from 2004 and extracted information on demographics, pulmonary rehabilitation and clinical parameters using the relevant Read codes. Thirty six thousand one hundred and eighty nine patients diagnosed with COPD were included with a mean (SD) age of 67 (11) years, 53% were male and only 9.8% had a code related to either being assessed, referred, or completing pulmonary rehabilitation ever. Younger age at diagnosis, better socioeconomic status, worse dyspnoea score, current smoking, and higher comorbidities level are more likely to have a record of pulmonary rehabilitation. Of those with a recorded MRC of 3 or worse, only 2057 (21%) had a code of pulmonary rehabilitation. Survival analysis revealed that patients with coding for pulmonary rehabilitation were 22% (95% CI 0.69-0.88) less likely to die than those who had no coding. In UK THIN records, a substantial proportion of eligible patients with COPD have not had a coded pulmonary rehabilitation record. Survival was improved in those with PR record but coding for other COPD treatments were also better in this group. GP practices need to improve the coding for PR to highlight any unmet need locally. CHRONIC LUNG DISEASE: ROLLING OUT THE REHAB: Analysis of recent UK data suggests that more patients with chronic lung disease could benefit from lung rehabilitation programmes. During pulmonary rehabilitation (PR), patients with chronic obstructive pulmonary disease (COPD) work with specialists to learn exercises and optimise breathing techniques. The programmes are recommended under current guidelines, particularly for patients with a high breathlessness score. Despite this, when Charlotte Bolton and co-workers at the University of Nottingham analysed 36,189 patient primary care records gathered since 2004, they found only 9.8% of COPD patients had ever had a coded record of being assessed, referred for, or undertaken PR. Those patients who completed PR were 22% less likely to die that those who didn't, although appeared they had also received better overall COPD care. Current smokers, those suffering from co-morbidities and younger patients were more likely to receive PR than other patient groups. PMID- 29021577 TI - Interleukin 17A as a good predictor of the severity of Mycoplasma pneumoniae pneumonia in children. AB - Early distinction between severe Mycoplasma pneumoniae pneumonia (MPP) and mild MPP is still difficult. The aim of this study was to analyze cytokines in bronchoalveolar lavage fluid (BALF) and explore predicting factors of severe MPP in children. Retrospective analysis was performed on 150 children with MPP or bronchial foreign body (FB) admitted in our hospital. The mRNA levels of IL17A were found significantly lower in severe MPP group comparing with mild MPP group or FB group. However, no significant difference was found in the levels of IL4, IL10 or interferon beta1 (IFNbeta1) between the two groups. Receiver operator characteristic (ROC) curve analysis showed that IL17A can be used to distinguish severe MPP from mild MPP. These results were confirmed in a validation cohort including 40 MPP children from another hospital. IL17A levels were correlated with some clinical characters, such as refractoriness and pleural effusion. Lower IL17A levels were more likely to be found in refractory MPP children or in MPP children with pleural effusion. Moreover, the protein levels of IL17A in BALF were also found greatly decreased in children with severe MPP. Thus, decreased IL17A levels in BALF may be a valuable biomarker to identify severe MPP in children. PMID- 29021578 TI - Strong Binding of Platelet Integrin alphaIIbbeta3 to Fibrin Clots: Potential Target to Destabilize Thrombi. AB - The formation of platelet thrombi is determined by the integrin alphaIIbbeta3 mediated interactions of platelets with fibrinogen and fibrin. Blood clotting in vivo is catalyzed by thrombin, which simultaneously induces fibrinogen binding to alphaIIbbeta3 and converts fibrinogen to fibrin. Thus, after a short time, thrombus formation is governed by alphaIIbbeta3 binding to fibrin fibers. Surprisingly, there is little understanding of alphaIIbbeta3 interaction with fibrin polymers. Here we used an optical trap-based system to measure the binding of single alphaIIbbeta3 molecules to polymeric fibrin and compare it to alphaIIbbeta3 binding to monomeric fibrin and fibrinogen. Like alphaIIbbeta3 binding to fibrinogen and monomeric fibrin, we found that alphaIIbbeta3 binding to polymeric fibrin can be segregated into two binding regimes, one with weaker rupture forces of 30-60 pN and a second with stronger rupture forces >60 pN that peaked at 70-80 pN. However, we found that the mechanical stability of the bimolecular alphaIIbbeta3-ligand complexes had the following order: fibrin polymer > fibrin monomer > fibrinogen. These quantitative differences reflect the distinct specificity and underlying molecular mechanisms of alphaIIbbeta3 mediated reactions, implying that targeting platelet interactions with fibrin could increase the therapeutic indices of antithrombotic agents by focusing on the destabilization of thrombi rather than the prevention of platelet aggregation. PMID- 29021579 TI - Glomalin contributed more to carbon, nutrients in deeper soils, and differently associated with climates and soil properties in vertical profiles. AB - Despite vital importance in soil conditioning and a proxy for arbuscular mycorrhizal (AMF), glomalin-related soil protein (GRSP) contribution to soil carbon and nutrients at vertical soil profiles and underlying mechanism were not well-defined yet. Thus, 360 soil samples were collected from 72 farmland 1-m soil profiles in northeastern China, and soil physiochemical properties, nutrients, glomalin characteristics, local climates were determined. Linear decreases of glomalin amounts were observed from the top to deep soils, and glomalin/SOC (glomalin ratio to total SOC) in the 80-100 cm soil (EEG, easily-extracted GRSP, 2.2%; TG, total GRSP, 19%) was 1.34-1.5-fold higher than did in the 0-20 cm soil. Different statistical analyses crosschecked that the lower pH and higher SOC usually accompanied with the higher EEG and TG, while EEG was more sensitive to climates; Moreover, glomalin was more physiochemical-regulated in the deep soils, but more nutrient-regulation was found in the surface soils. Structure Equation Model showed that soil depths and climates indirectly affected TG and EEG features through soil properties, except significant direct effects on EEG. In future, glomalin assessment should fully consider these for identifying the AMF importance in the whole 1-m profile, and our findings also favor degrade soil improvement from glomalin rehabilitation. PMID- 29021580 TI - The quaternary architecture of RARbeta-RXRalpha heterodimer facilitates domain domain signal transmission. AB - Assessing the physical connections and allosteric communications in multi-domain nuclear receptor (NR) polypeptides has remained challenging, with few crystal structures available to show their overall structural organizations. Here we report the quaternary architecture of multi-domain retinoic acid receptor beta retinoic X receptor alpha (RARbeta-RXRalpha) heterodimer bound to DNA, ligands and coactivator peptides, examined through crystallographic, hydrogen-deuterium exchange mass spectrometry, mutagenesis and functional studies. The RARbeta ligand-binding domain (LBD) and DNA-binding domain (DBD) are physically connected to foster allosteric signal transmission between them. Direct comparisons among all the multi-domain NRs studied crystallographically to date show significant variations within their quaternary architectures, rather than a common architecture adhering to strict rules. RXR remains flexible and adaptive by maintaining loosely organized domains, while its heterodimerization partners use a surface patch on their LBDs to form domain-domain interactions with DBDs.Nuclear receptors (NR) are multidomain proteins, which makes their crystallization challenging. Here the authors present the crystal structure of the retinoic acid receptor beta-retinoic X receptor alpha (RARbeta-RXRalpha) heterodimer bound to DNA, ligands and coactivator peptides, which shows that NR quaternary architectures are variable. PMID- 29021581 TI - Molecular identification of the wheat male fertility gene Ms1 and its prospects for hybrid breeding. AB - The current rate of yield gain in crops is insufficient to meet the predicted demands. Capturing the yield boost from heterosis is one of the few technologies that offers rapid gain. Hybrids are widely used for cereals, maize and rice, but it has been a challenge to develop a viable hybrid system for bread wheat due to the wheat genome complexity, which is both large and hexaploid. Wheat is our most widely grown crop providing 20% of the calories for humans. Here, we describe the identification of Ms1, a gene proposed for use in large-scale, low-cost production of male-sterile (ms) female lines necessary for hybrid wheat seed production. We show that Ms1 completely restores fertility to ms1d, and encodes a glycosylphosphatidylinositol-anchored lipid transfer protein, necessary for pollen exine development. This represents a key step towards developing a robust hybridization platform in wheat.Heterosis can rapidly boost yield in crop species but development of hybrid-breeding systems for bread wheat remains a challenge. Here, Tucker et al. describe the molecular identification of the wheat Ms1 gene and discuss its potential for large-scale hybrid seed production in wheat. PMID- 29021582 TI - Novel mechanism of regulation of the 5-lipoxygenase/leukotriene B4 pathway by high-density lipoprotein in macrophages. AB - High-density lipoprotein (HDL) interacts with various cells, particularly macrophages, in functional cell-HDL interactions. Here, we found that HDL protein quality and lipid quality play critical roles in HDL functions. HDL fractions from healthy volunteers (HDLHealthy) and patients with recurrent coronary atherosclerotic disease (HDLCAD) were prepared. To analyse functional HDL macrophage interactions, macrophages were co-incubated with each HDL, and lipid mediator production was assessed by liquid chromatography/mass spectrometry-based metabololipidomics. HDLHealthy treatment attenuated the pro-inflammatory lipid mediator production, particularly that of leukotriene (LT) B4, and this treatment enhanced lipoxin (LX) B4 and resolvin (Rv) E2 production. HDLHealthy treatment enhanced the proteasome-mediated degradation of the LTB4-producing enzyme 5 lipoxygenase (LO) in activated macrophages; however, HDLCAD did not show these anti-inflammatory effects. HDLHealthy was engulfed by macrophages via clathrin mediated endocytosis, which was a critical step in 5-LO/LTB4 regulation. We also found that HDLCAD showed higher levels of the LTB4-producing enzymes and thus promoted LTB4 production from HDLCAD. In addition, LTB4 attenuated HDL endocytosis, HDL-mediated 5-LO degradation in macrophages, and HDL-derived augmentation of macrophage phagocytosis. These results indicated that local LTB4 produced de novo from HDLCAD regulates HDL-macrophage functional interactions and plays critical roles in dysfunctional, inflammatory HDL characteristics. PMID- 29021583 TI - Polydopamine-Laced Biomimetic Material Stimulation of Bone Marrow Derived Mesenchymal Stem Cells to Promote Osteogenic Effects. AB - A hydroxyapatite-collagen (HC) composite material can mimic composition and ultra structures of natural bone and provide adequate bioactive material-tissue interactions. Incorporation of dopamine (DA) is one of keys in increasing the mechanical strength of the HC material to approaching that of cortical bone. In this study, the in vitro osteogenic effects of polydopamine-laced hydroxyapatite collagen calcium silicate (HCCS-PDA) were examined by culturing rat mesenchymal stem cells (rMSCs) on HCCS-PDA and HCCS coated plates. HCCS-PDA group demonstrated less cytotoxic from Live/Dead cytotoxic assay and displayed higher cell attachment, proliferation and mineralization than the HCCS group in vitro. For in vivo bone regeneration, HCCS-PDA or HCCS particulates with or without rMSC aggregates were implanted into rat critical-sized calvarial defects (CSD). After 12 weeks, calvarial bone regeneration was evaluated radiographically, histologically, and histomorphometrically. While the majority of new bone formation occurred around the HCCS-PDA particulates with rMSC aggregates, The HCCS-PDA particulates without rMSC aggregates showed limited osteoconductivity. HCCS with or without rMSC aggregates resulted in less bone formation, indicating a prominent role of DA in effective bone regeneration. Therefore, the HCCS-PDA biomaterial with the aid of rMSCs can be used to develop therapeutic strategies in bone tissue engineering with numerable clinical applications. PMID- 29021584 TI - Mortalin deficiency suppresses fibrosis and induces apoptosis in keloid spheroids. AB - Mortalin (Mot) is a mitochondrial chaperone of the heat shock protein 70 family and it's pro-proliferative and anti-apoptosis functions could be associated with keloid pathogenesis, and blocking of mortalin and its interaction with p53 might be a potential novel target for the treatment of keloid. Therefore, we generated mortalin-specific small hairpin (sh) RNAs (dE1-RGD/GFP/shMot) and introduced into keloid spheroids for examination of its apoptotic and anti-fibrotic effect. On keloid tissues, mortalin expression was higher than adjacent normal tissues and it's protein expressions were activated keloid fibroblasts (KFs). After primary keloid spheroid were transduced with dE1-RGD/GFP/shMot for knockdown of mortalin, expression of type I, III collagen, fibronectin, and elastin was significantly reduced and transforming growth factor-beta1, epidermal growth factor receptor (EGFR), Extracellular Signal-Regulated Kinases 1 and 2 (Erk 1/2), and Smad 2/3 complex protein expression were decreased. In addition, increased TUNEL activities and cytochrome C were observed. Further, for examine of mortalin and p53 interaction, we performed immunofluorescence analysis. Knockdown of mortalin relocated p53 to the cell nucleus in primary keloid spheroids by dE1 RGD/GFP/shMot transduction. These results support the utility of knockdown of mortalin to induce apoptosis and reduce ECMs expression in keloid spheroid, which may be highly beneficial in treating keloids. PMID- 29021585 TI - Perceived stress level and risk of cancer incidence in a Japanese population: the Japan Public Health Center (JPHC)-based Prospective Study. AB - Evidence regarding stress as a risk factor for cancer onset is inconsistent. In this study, based on the Japan Public Health Center-based Prospective Study, we enrolled 101,708 participants aged 40-69 years from 1990-1994. The self-reported perceived stress level was collected at baseline and updated through 5-year follow-up. The association between perceived stress and cancer risk was measured by Cox proportional hazards regression model, adjusted for all known confounders. During follow-up (mean = 17.8 years), we identified 17,161 cancer cases. We found no association between baseline perceived stress level and cancer incidence. However, by taking account of the dynamic changes in perceived stress, time varying analyses revealed a slightly (4-6%) increased overall cancer risk for subjects under elevated perceived stress levels compared to the 'low stress level' group. Analyses concerning long-term perceived stress level showed that individuals with constantly high perceived stress level had an 11% (95% confidence interval 1-22%) excess risk for cancer compared to subjects with persistently low stress levels. This association was confined to men (20% excess risk), and was particularly strong among smokers, alcohol drinkers, obese subjects, and subjects without family history of cancer. Therefore, we concluded high perceived stress level might contribute to excess overall cancer incidence among men. PMID- 29021586 TI - Colloidal Force Study of Particle Fouling on Gas Capture Membrane. AB - Membrane fouling induced by industrial flue gas deteriorates their gas capturing efficiency, which is mainly caused by the adhesion of aerosol particles. To fully understand the mechanism of membrane fouling, a quantitative study of the adhesion force of particle on membrane surface was investigated by atomic force microscopy (AFM). The adhesion force of a single particle with flat glass, silicon wafer, PP (polypropylene) membrane, and fly-ash particles were measured within the relative humidity (RH) of 0 ~ 85%. The results showed the adhesion force of a particle with membrane have not much difference from the glass and silica wafer. And the surface roughness of flat substrate has slight effect on the adhesion force of the micrometer scale particle on flat surface at dry condition, while measured adhesion forces show obvious RH dependent for glass and membrane. Additionally, at dry conditions, the adhesion force of inter-particles also shows no obvious quantitative difference but obvious scattering comparing to that on membrane. The adhesion force of inter-particles increased more higher with the RH than that on membrane, which indicates the adhesion between micrometer scale particles can accelerate the deposition of particles on membrane and contributes the most to membrane fouling in industry atmosphere. PMID- 29021588 TI - Robust Fusion of Diffusion MRI Data for Template Construction. AB - Construction of brain templates is generally carried out using a two-step procedure involving registering a population of images to a common space and then fusing the aligned images to form a template. In practice, image registration is not perfect and simple averaging of the images will blur structures and cause artifacts. In diffusion MRI, this is further complicated by intra-voxel inter subject differences in fiber orientation, fiber configuration, anisotropy, and diffusivity. In this paper, we propose a method to improve the construction of diffusion MRI templates in light of inter-subject differences. Our method involves a novel q-space (i.e., wavevector space) patch matching mechanism that is incorporated in a mean shift algorithm to seek the most probable signal at each point in q-space. Our method relies on the fact that the mean shift algorithm is a mode seeking algorithm that converges to the mode of a distribution and is hence robust to outliers. Our method is therefore in effect seeking the most probable signal profile at each voxel given a distribution of signal profiles. Experimental results show that our method yields diffusion MRI templates with cleaner fiber orientations and less artifacts caused by inter subject differences in fiber orientation. PMID- 29021587 TI - Relationships between structure, in vivo function and long-range axonal target of cortical pyramidal tract neurons. AB - Pyramidal tract neurons (PTs) represent the major output cell type of the neocortex. To investigate principles of how the results of cortical processing are broadcasted to different downstream targets thus requires experimental approaches, which provide access to the in vivo electrophysiology of PTs, whose subcortical target regions are identified. On the example of rat barrel cortex (vS1), we illustrate that retrograde tracer injections into multiple subcortical structures allow identifying the long-range axonal targets of individual in vivo recorded PTs. Here we report that soma depth and dendritic path lengths within each cortical layer of vS1, as well as spiking patterns during both periods of ongoing activity and during sensory stimulation, reflect the respective subcortical target regions of PTs. We show that these cellular properties result in a structure-function parameter space that allows predicting a PT's subcortical target region, without the need to inject multiple retrograde tracers.The major output cell type of the neocortex - pyramidal tract neurons (PTs) - send axonal projections to various subcortical areas. Here the authors combined in vivo recordings, retrograde tracings, and reconstructions of PTs in rat somatosensory cortex to show that PT structure and activity can predict specific subcortical targets. PMID- 29021589 TI - Enhanced cell attachment and hemocompatibility of titanium by nanoscale surface modification through severe plastic integration of magnesium-rich islands and porosification. AB - Besides the wide applications of titanium and its alloys for orthopedic and biomedical implants, the biocompatible nature of titanium has emerged various surface modification techniques to enhance its bioactivity and osteointegration with living tissues. In this work, we present a new procedure for nanoscale surface modification of titanium implants by integration of magnesium-rich islands combined with controlled formation of pores and refinement of the surface grain structure. Through severe plastic deformation of the titanium surface with fine magnesium hydride powder, Mg-rich islands with varying sizes ranging from 100 nm to 1000 nm can be integrated inside a thin surface layer (100-500 um) of the implant. Selective etching of the surface forms a fine structure of surface pores which their average size varies in the range of 200-500 nm depending on the processing condition. In vitro biocompatibility and hemocompatibility assays show that the Mg-rich islands and the induced surface pores significantly enhance cell attachment and biocompatibility without an adverse effect on the cell viability. Therefore, severe plastic integration of Mg-rich islands on titanium surface accompanying with porosification is a new and promising procedure with high potential for nanoscale modification of biomedical implants. PMID- 29021590 TI - Influence of adaptive capacity on the outcome of climate change vulnerability assessment. AB - Climate change vulnerability assessment (CCVA) has become a mainstay conservation decision support tool. CCVAs are recommended to incorporate three elements of vulnerability - exposure, sensitivity and adaptive capacity - yet, lack of data frequently leads to the latter being excluded. Further, weighted or unweighted scoring schemes, based on expert opinion, may be applied. Comparisons of these approaches are rare. In a CCVA for 17 Australian lizard species, we show that membership within three vulnerability categories (low, medium and high) generally remained similar regardless of the framework or scoring scheme. There was one exception however, where, under the warm/dry scenario for 2070, including adaptive capacity lead to five fewer species being classified as highly vulnerable. Two species, Eulamprus leuraensis and E. kosciuskoi, were consistently ranked the most vulnerable, primarily due to projected losses in climatically suitable habitat, narrow thermal tolerance and specialist habitat requirements. Our findings provide relevant information for prioritizing target species for conservation and choosing appropriate conservation actions. We conclude that for the species included in this study, the framework and scoring scheme used had little impact on the identification of the most vulnerable species. We caution, however, that this outcome may not apply to other taxa or regions. PMID- 29021591 TI - Highly sensitive, self-powered and wearable electronic skin based on pressure sensitive nanofiber woven fabric sensor. AB - The wearable electronic skin with high sensitivity and self-power has shown increasing prospects for applications such as human health monitoring, robotic skin, and intelligent electronic products. In this work, we introduced and demonstrated a design of highly sensitive, self-powered, and wearable electronic skin based on a pressure-sensitive nanofiber woven fabric sensor fabricated by weaving PVDF electrospun yarns of nanofibers coated with PEDOT. Particularly, the nanofiber woven fabric sensor with multi-leveled hierarchical structure, which significantly induced the change in contact area under ultra-low load, showed combined superiority of high sensitivity (18.376 kPa-1, at ~100 Pa), wide pressure range (0.002-10 kPa), fast response time (15 ms) and better durability (7500 cycles). More importantly, an open-circuit voltage signal of the PPNWF pressure sensor was obtained through applying periodic pressure of 10 kPa, and the output open-circuit voltage exhibited a distinct switching behavior to the applied pressure, indicating the wearable nanofiber woven fabric sensor could be self-powered under an applied pressure. Furthermore, we demonstrated the potential application of this wearable nanofiber woven fabric sensor in electronic skin for health monitoring, human motion detection, and muscle tremor detection. PMID- 29021592 TI - A turn-on endoplasmic reticulum-targeted two-photon fluorescent probe for hydrogen sulfide and bio-imaging applications in living cells, tissues, and zebrafish. AB - As one of the important gas signal molecules, hydrogen sulfide (H2S) is associated with many important physiological processes in living organisms. Organelles, especially endoplasmic reticulum (ER), play a crucial role in the cell metabolism. Accordingly, the detection of H2S in the ER is of high interest. Toward this goal, we have described the development of the first ER-targeted fluorescent H2S probe (Na-H 2 S-ER). The new probe exhibited favorable features, such as a large turn-on fluorescence signal (45-fold fluorescence enhancement), high sensitivity and selectivity. The probe was successfully employed for imaging exogenous and endogenous H2S in the living HeLa cells. Significantly, the new probe Na-H 2 S-ER was employed to visualize H2S in the ER of living cells for the first time. In addition, the probe was also successfully used for imaging H2S in the living tissues up to a depth of 100 MUm and in the living zebrafish. PMID- 29021594 TI - Understanding drug resistance will improve the treatment of bacterial infections. PMID- 29021593 TI - A coordinated sequence of distinct flagellar waveforms enables a sharp flagellar turn mediated by squid sperm pH-taxis. AB - Animal spermatozoa navigate by sensing ambient chemicals to reach the site of fertilization. Generally, such chemicals derive from the female reproductive organs or cells. Exceptionally, squid spermatozoa mutually release and perceive carbon dioxide to form clusters after ejaculation. We previously identified the pH-taxis by which each spermatozoon can execute a sharp turn, but how flagellar dynamics enable this movement remains unknown. Here, we show that initiation of the turn motion requires a swim down a steep proton gradient (a theoretical estimation of >=0.025 pH/s), crossing a threshold pH value of ~5.5. Time-resolved kinematic analysis revealed that the turn sequence results from the rhythmic exercise of two flagellar motions: a stereotypical flagellar 'bent-cane' shape followed by asymmetric wave propagation, which enables a sharp turn in the realm of low Reynolds numbers. This turning episode is terminated by an 'overshoot' trajectory that differs from either straight-line motility or turning. As with bidirectional pH-taxes in some bacteria, squid spermatozoa also showed repulsion from strong acid conditions with similar flagellar kinematics as in positive pH taxis. These findings indicate that squid spermatozoa might have a unique reorientation mechanism, which could be dissimilar to that of classical egg guided sperm chemotaxis in other marine invertebrates. PMID- 29021595 TI - Carpe diet. PMID- 29021596 TI - Microbiome: Diving deeper into the communities. PMID- 29021597 TI - Bacterial pathogenesis: It takes two to tango. PMID- 29021599 TI - Viral infection: Adapt or get zapped. PMID- 29021601 TI - Novel vaccine vectors for HIV-1. PMID- 29021600 TI - Diagnosing antimicrobial resistance. AB - Antimicrobial resistance constitutes a global burden and is one of the major threats to public health. Although the emergence of resistant microorganisms is a natural phenomenon, the overuse or inappropriate use of antimicrobials has had a great effect on resistance evolution. Rapid diagnostic tests that identify drug resistant bacteria, determine antimicrobial susceptibility and distinguish viral from bacterial infections can guide effective treatment strategies. Moreover, rapid diagnostic tests could facilitate epidemiological surveillance, as emerging resistant infectious agents and transmission can be monitored. In this Viewpoint article, several experts in the field discuss the drawbacks of current diagnostic methods that are used to identify antimicrobial resistance, novel diagnostic strategies and how such rapid tests can inform drug development and the surveillance of resistance evolution. PMID- 29021602 TI - Biofilms: The architect of the biofilm. PMID- 29021603 TI - Bacterial physiology: Making a memory. PMID- 29021604 TI - Fungal physiology: Two for the price of one. PMID- 29021598 TI - The commensal lifestyle of Staphylococcus aureus and its interactions with the nasal microbiota. AB - Although human colonization by facultative bacterial pathogens, such as Staphylococcus aureus, represents a major risk factor for invasive infections, the commensal lifestyle of such pathogens has remained a neglected area of research. S. aureus colonizes the nares of approximately 30% of the human population and recent studies suggest that the composition of highly variable nasal microbiota has a major role in promoting or inhibiting S. aureus colonization. Competition for epithelial attachment sites or limited nutrients, different susceptibilities to host defence molecules and the production of antimicrobial molecules may determine whether nasal bacteria outcompete each other. In this Review, we discuss recent insights into mechanisms that are used by S. aureus to prevail in the human nose and the counter-strategies that are used by other nasal bacteria to interfere with its colonization. Understanding such mechanisms will be crucial for the development of new strategies for the eradication of endogenous facultative pathogens. PMID- 29021605 TI - A large predatory reef fish species moderates feeding and activity patterns in response to seasonal and latitudinal temperature variation. AB - Climate-driven increases in ocean temperatures are expected to affect the metabolic requirements of marine species substantially. To mitigate the impacts of increasing temperatures in the short-term, it may be necessary for ectothermic organisms to alter their foraging behaviour and activity. Herein, we investigate seasonal variation in foraging behaviour and activity of latitudinally distinct populations of a large coral reef predator, the common coral trout, Plectropomus leopardus, from the Great Barrier Reef, Australia. P. leopardus exhibited increased foraging frequency in summer versus winter time, irrespective of latitude, however, foraging frequency substantially declined at water temperatures >30 degrees C. Foraging frequency also decreased with body size but there was no interaction with temperature. Activity patterns were directly correlated with water temperature; during summer, the low-latitude population of P. leopardus spent up to 62% of their time inactive, compared with 43% for the high-latitude population. The impact of water temperature on activity patterns was greatest for larger individuals. These results show that P. leopardus moderate their foraging behaviour and activity according to changes in ambient temperatures. It seems likely that increasing ocean temperatures may impose significant constraints on the capacity of large-bodied fishes to obtain sufficient prey resources while simultaneously conserving energy. PMID- 29021606 TI - Higher Expression of Toll-Like Receptors 2 and 4 in Blood Cells of Keratoconus Patiens. AB - Inflammation may play a significant role in Keratoconus (KC), but the implication of immunity on this inflammatory response is unknown. Therefore, our aim was to determine the expression levels of Toll-like receptors 2 (TLR2) and 4 (TLR4) in monocytes and neutrophils from patients with KC and control subjects for demonstrating the role of innate immunity in KC. We also study the correlation between TLR2/TLR4 expression and serum levels of proinflammatory markers (IL 1beta, IL-6, TNF-alpha, MMP-9 and NF-kappaB). Forty patients with bilateral KC (55% males; mean age; 33.1 +/- 10.9 years) and 20 control subjects (55% males; mean age; 30.4 +/- 7.6 years) were included in the study. Our results showed that mean expression of TLR2 and TLR4 in both neutrophils and monocytes was significantly higher in patients with KC compared to control subjects (all p < 0.0001). Furthermore, KC patients also showed higher serum levels of IL-1B, IL-6, TNF-alpha, MMP-9 (all p < 0.0001) and NF-kappaB (p = 0.036). In addition, we found a strong correlation between TLR2 expression in both monocytes and neutrophils (all p < 0.0001), and TLR4 in monocytes (all p < 0.05) with serum levels of IL-1B, IL-6, TNF-alpha and MMP-9. In conclusion, these findings suggest that TLRs may play an important role in the pathophysiology of KC. PMID- 29021607 TI - Turnover and flow of the cell membrane for cell migration. AB - The role of cell membrane dynamics in cell migration is unclear. To examine whether total cell surface area changes are required for cell migration, Dictyostelium cells were flattened by agar-overlay. Scanning electron microscopy demonstrated that flattened migrating cells have no membrane reservoirs such as projections and membrane folds. Similarly, optical sectioning fluorescence microscopy showed that the cell surface area does not change during migration. Interestingly, staining of the cell membrane with a fluorescent lipid analogue demonstrated that the turnover rate of cell membrane is closely related to the cell migration velocity. Next, to clarify the mechanism of cell membrane circulation, local photobleaching was separately performed on the dorsal and ventral cell membranes of rapidly moving cells. The bleached zones on both sides moved rearward relative to the cell. Thus, the cell membrane moves in a fountain like fashion, accompanied by a high membrane turnover rate and actively contributing to cell migration. PMID- 29021608 TI - Amyloidogenic motifs revealed by n-gram analysis. AB - Amyloids are proteins associated with several clinical disorders, including Alzheimer's, and Creutzfeldt-Jakob's. Despite their diversity, all amyloid proteins can undergo aggregation initiated by short segments called hot spots. To find the patterns defining the hot spots, we trained predictors of amyloidogenicity, using n-grams and random forest classifiers. Since the amyloidogenicity may not depend on the exact sequence of amino acids but on their more general properties, we tested 524,284 reduced amino acid alphabets of different lengths (three to six letters) to find the alphabet providing the best performance in cross-validation. The predictor based on this alphabet, called AmyloGram, was benchmarked against the most popular tools for the detection of amyloid peptides using an external data set and obtained the highest values of performance measures (AUC: 0.90, MCC: 0.63). Our results showed sequential patterns in the amyloids which are strongly correlated with hydrophobicity, a tendency to form beta-sheets, and lower flexibility of amino acid residues. Among the most informative n-grams of AmyloGram we identified 15 that were previously confirmed experimentally. AmyloGram is available as the web-server: http://smorfland.uni.wroc.pl/shiny/AmyloGram/ and as the R package AmyloGram. R scripts and data used to produce the results of this manuscript are available at http://github.com/michbur/AmyloGramAnalysis . PMID- 29021609 TI - A cdk1 gradient guides surface contraction waves in oocytes. AB - Surface contraction waves (SCWs) in oocytes and embryos lead to large-scale shape changes coupled to cell cycle transitions and are spatially coordinated with the cell axis. Here, we show that SCWs in the starfish oocyte are generated by a traveling band of myosin II-driven cortical contractility. At the front of the band, contractility is activated by removal of cdk1 inhibition of the RhoA/RhoA kinase/myosin II signaling module, while at the rear, contractility is switched off by negative feedback originating downstream of RhoA kinase. The SCW's directionality and speed are controlled by a spatiotemporal gradient of cdk1 cyclinB. This gradient is formed by the release of cdk1-cyclinB from the asymmetrically located nucleus, and progressive degradation of cyclinB. By combining quantitative imaging, biochemical and mechanical perturbations with mathematical modeling, we demonstrate that the SCWs result from the spatiotemporal integration of two conserved regulatory modules, cdk1-cyclinB for cell cycle regulation and RhoA/Rok/NMYII for actomyosin contractility.Surface contraction waves (SCWs) are prominent shape changes coupled to cell cycle transitions in oocytes. Here the authors show that SCWs are patterned by the spatiotemporal integration of two conserved modules, cdk1-cyclinB for cell cycle regulation and RhoA/Rok/NMYII for actomyosin contractility. PMID- 29021610 TI - Low immunogenicity of mouse induced pluripotent stem cell-derived neural stem/progenitor cells. AB - Resolving the immunogenicity of cells derived from induced pluripotent stem cells (iPSCs) remains an important challenge for cell transplant strategies that use banked allogeneic cells. Thus, we evaluated the immunogenicity of mouse fetal neural stem/progenitor cells (fetus-NSPCs) and iPSC-derived neural stem/progenitor cells (iPSC-NSPCs) both in vitro and in vivo. Flow cytometry revealed the low expression of immunological surface antigens, and these cells survived in all mice when transplanted syngeneically into subcutaneous tissue and the spinal cord. In contrast, an allogeneic transplantation into subcutaneous tissue was rejected in all mice, and allogeneic cells transplanted into intact and injured spinal cords survived for 3 months in approximately 20% of mice. In addition, cell survival was increased after co-treatment with an immunosuppressive agent. Thus, the immunogenicity and post-transplantation immunological dynamics of iPSC-NSPCs resemble those of fetus-NSPCs. PMID- 29021611 TI - Spatial detection of fetal marker genes expressed at low level in adult human heart tissue. AB - Heart failure is a major health problem linked to poor quality of life and high mortality rates. Hence, novel biomarkers, such as fetal marker genes with low expression levels, could potentially differentiate disease states in order to improve therapy. In many studies on heart failure, cardiac biopsies have been analyzed as uniform pieces of tissue with bulk techniques, but this homogenization approach can mask medically relevant phenotypes occurring only in isolated parts of the tissue. This study examines such spatial variations within and between regions of cardiac biopsies. In contrast to standard RNA sequencing, this approach provides a spatially resolved transcriptome- and tissue-wide perspective of the adult human heart, and enables detection of fetal marker genes expressed by minor subpopulations of cells within the tissue. Analysis of patients with heart failure, with preserved ejection fraction, demonstrated spatially divergent expression of fetal genes in cardiac biopsies. PMID- 29021612 TI - IL-15 promotes human myogenesis and mitigates the detrimental effects of TNFalpha on myotube development. AB - Studies in murine cell lines and in mouse models suggest that IL-15 promotes myogenesis and may protect against the inflammation-mediated skeletal muscle atrophy which occurs in sarcopenia and cachexia. The effects of IL-15 on human skeletal muscle growth and development remain largely uncharacterised. Myogenic cultures were isolated from the skeletal muscle of young and elderly subjects. Myoblasts were differentiated for 8 d, with or without the addition of recombinant cytokines (rIL-15, rTNFalpha) and an IL-15 receptor neutralising antibody. Although myotubes were 19% thinner in cultures derived from elderly subjects, rIL-15 increased the thickness of myotubes (MTT) from both age groups to a similar extent. Neutralisation of the high-affinity IL-15 receptor binding subunit, IL-15ralpha in elderly myotubes confirmed that autocrine concentrations of IL-15 also support myogenesis. Co-incubation of differentiating myoblasts with rIL-15 and rTNFalpha, limited the reduction in MTT and nuclear fusion index (NFI) associated with rTNFalpha stimulation alone. IL-15ralpha neutralisation and rTNFalpha decreased MTT and NFI further. This, coupled with our observation that myotubes secrete IL-15 in response to TNFalpha stimulation supports the notion that IL-15 serves to mitigate inflammatory skeletal muscle loss. IL-15 may be an effective therapeutic target for the attenuation of inflammation-mediated skeletal muscle atrophy. PMID- 29021613 TI - Uncoupling Oncogene-Induced Senescence (OIS) and DNA Damage Response (DDR) triggered by DNA hyper-replication: lessons from primary mouse embryo astrocytes (MEA). AB - Oncogene-induced senescence (OIS) is a complex process, in which activation of oncogenic signals during early tumorigenesis results in a high degree of DNA replication stress. The ensuing response to the DNA damage produces a permanent G1 arrest that prevents unlimited cell proliferation and lessens the development of tumours. However, despite the role of OIS in the proliferative arrest resulting from an activating oncogenic-lesion has obtained wide support, there is also evidence indicating that cells may overcome oncogene-induced senescence under some circumstances. In this study, we have investigated the possibility that some of the assumptions on the role of DNA damage response (DDR) in triggering OIS may depend on the fact that most of the available data were obtained in mouse embryo fibroblast. By comparing the degree of OIS observed in mouse embryo fibroblasts (MEF) and mouse embryo astrocytes (MEA) obtained from the same individuals we have demonstrated that, despite truthful activation of DDR in both cell types, significant levels of OIS were only detected in MEF. Therefore, this uncoupling between OIS and DDR observed in astrocytes supports the intriguingly possibility that OIS is not a widespread response mechanism to DDR. PMID- 29021614 TI - Digital nonlinearity compensation in high-capacity optical communication systems considering signal spectral broadening effect. AB - Nyquist-spaced transmission and digital signal processing have proved effective in maximising the spectral efficiency and reach of optical communication systems. In these systems, Kerr nonlinearity determines the performance limits, and leads to spectral broadening of the signals propagating in the fibre. Although digital nonlinearity compensation was validated to be promising for mitigating Kerr nonlinearities, the impact of spectral broadening on nonlinearity compensation has never been quantified. In this paper, the performance of multi-channel digital back-propagation (MC-DBP) for compensating fibre nonlinearities in Nyquist-spaced optical communication systems is investigated, when the effect of signal spectral broadening is considered. It is found that accounting for the spectral broadening effect is crucial for achieving the best performance of DBP in both single-channel and multi-channel communication systems, independent of modulation formats used. For multi-channel systems, the degradation of DBP performance due to neglecting the spectral broadening effect in the compensation is more significant for outer channels. Our work also quantified the minimum bandwidths of optical receivers and signal processing devices to ensure the optimal compensation of deterministic nonlinear distortions. PMID- 29021616 TI - The thermogenic actions of natriuretic peptide in brown adipocytes: The direct measurement of the intracellular temperature using a fluorescent thermoprobe. AB - In addition to the various effects of natriuretic peptides (NPs) on cardiovascular systems, increasing attention is being paid to the possibility that NPs induce adipose tissue browning and activate thermogenic program. We herein established a direct intracellular temperature measurement system using a fluorescent thermoprobe and investigated the thermogenic effects of A-type NP (ANP) on brown adipocytes. The thermoprobe was successfully introduced into rat brown adipocytes, and the temperature dependent change in fluorescence intensity ratio was measured using a fluorescence microscope. After one-hour incubation with ANP, the degree of the change in fluorescence intensity ratio was significantly higher in ANP-treated (P < 0.01) adipocytes compared to untreated controls. The ANP treatment increased uncoupling protein-1 (UCP1) mRNA levels, which is one of the markers of thermogenesis in adipocytes, while the intracellular ATP content was not changed, indicating mitochondrial uncoupled respiration. Intriguingly, these thermogenic actions of ANP were more prominent when brown adipocytes were incubated at 35 degrees C than at 37 degrees C. Moreover, the increase in the intracellular temperature and the expression of UCP1 induced by ANP were cancelled by p38MAPK inhibition. Taken together, this study directly demonstrated the thermogenic actions of ANP in brown adipocytes through the use of a novel method of intracellular temperature measurement. PMID- 29021617 TI - Imaging mass spectrometry analysis of ubiquinol localization in the mouse brain following short-term administration. AB - We analyzed the localization of ubiquinol, the reduced form of coenzyme Q10 (Re CoQ10), in mouse brain sections using matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance imaging mass spectrometry (IMS) to evaluate the effect of dietary Re-CoQ10 in mouse brain. Mice were orally administered Re-CoQ10 for 14 days and brain Re-CoQ10 content was subsequently quantified using liquid chromatography-mass spectrometry. IMS was employed to visualize Re-CoQ10 at a resolution of 150 MUm in the mouse brain. Increased Re CoQ10 was observed in the corpus callosum, hippocampus, midbrain, cerebellum, brain stem, substantia nigra and striatum. These regions are related to movement, memory and vital life functions. Thus, we demonstrated the effect of Re-CoQ10 administration on the specific localization of Re-CoQ10 in the brain. PMID- 29021615 TI - A New Pedicled Internal Mammary Osteomyocutaneous Chimeric Flap (PIMOC) for Salvage Head and Neck Reconstruction: Anatomic Study and Clinical Application. AB - Well-vascularized composite tissue offers improved outcomes for complex head and neck reconstruction. Patients with vessel-depleted necks and failed reconstructions require alternative reconstructive options. We describe a pedicled internal mammary artery osteomyocutaneous chimeric flap (PIMOC) for salvage head and neck reconstruction. Bilateral dissections of 35 fresh cadavers were performed to study individual tissue components and vascular pedicles to develop the PIMOC technique. The flap was then utilized in a series of patients with vessel-depleted neck anatomy. The PIMOC was dissected bilaterally in all cadavers and there were no statistical differences in vascular pedicle caliber or length with regards to laterality or gender. Five patients subsequently underwent this procedure. The flaps included a vertical rectus abdominis myocutaneous component and a 6th or 7th rib with adjacent muscle and skin to restore bone defects, internal lining, and external coverage. All donor sites were closed primarily. There were no flap losses and all patients gained improvements in facial contour, speech and swallow. Although technically complex, the PIMOC is reproducible and provides a safe and reliable option for salvage head and neck reconstruction. The harvest of the 6th or 7th rib and rectus abdominis muscle renders an acceptable donor site. PMID- 29021618 TI - Superconductivity in Empty Bands and Multiple Order Parameter Chirality. AB - Recent experiments have shown rotation of the plane of polarization of light reflected from the surface of some superconductors. The photon energy exceeds the electronic bandwidth, so that completely filled or completely empty bands must play a role. We show that in strong-coupling theory a Coulomb interaction can produce an order parameter in the unoccupied band that explains the observations. Thus the phenomenology puts tight constraints on the form of the order parameter in different bands. We propose that the experiments have detected, for the first time, the existence of a superconducting order parameter in a band far from the Fermi energy. This is only possible because of the sensitivity to delicate symmetries: a positive Kerr effect indicates that time reversal and certain mirror symmetries are broken in the ordered phase. Furthermore, detailed analysis of the results implies that in UPt3 there exist bands that have different order parameter chiralities, opening up complex new possibilities for topological superconductivity. PMID- 29021619 TI - Pan-cancer analysis of bi-allelic alterations in homologous recombination DNA repair genes. AB - BRCA1 and BRCA2 are involved in homologous recombination (HR) DNA repair and are germ-line cancer pre-disposition genes that result in a syndrome of hereditary breast and ovarian cancer (HBOC). Whether germ-line or somatic alterations in these genes or other members of the HR pathway and if mono- or bi-allelic alterations of HR-related genes have a phenotypic impact on other cancers remains to be fully elucidated. Here, we perform a pan-cancer analysis of The Cancer Genome Atlas (TCGA) data set and observe that bi-allelic pathogenic alterations in homologous recombination (HR) DNA repair-related genes are prevalent across many malignancies. These bi-allelic alterations often associate with genomic features of HR deficiency. Further, in ovarian, breast and prostate cancers, bi allelic alterations are mutually exclusive of each other. The combination of these two properties facilitates reclassification of variants of unknown significance affecting DNA repair genes, and may help personalize HR directed therapies in the clinic.Germline mutations in homologous recombination (HR) DNA repair genes are linked to breast and ovarian cancer. Here, the authors show that mutually exclusive bi-allelic inactivation of HR genes are present in other cancer types and associated with genomic features of HR deficiency, expanding the potential use of HR-directed therapies. PMID- 29021620 TI - Exotic superfluidity and pairing phenomena in atomic Fermi gases in mixed dimensions. AB - Atomic Fermi gases have been an ideal platform for simulating conventional and engineering exotic physical systems owing to their multiple tunable control parameters. Here we investigate the effects of mixed dimensionality on the superfluid and pairing phenomena of a two-component ultracold atomic Fermi gas with a short-range pairing interaction, while one component is confined on a one dimensional (1D) optical lattice whereas the other is in a homogeneous 3D continuum. We study the phase diagram and the pseudogap phenomena throughout the entire BCS-BEC crossover, using a pairing fluctuation theory. We find that the effective dimensionality of the non-interacting lattice component can evolve from quasi-3D to quasi-1D, leading to strong Fermi surface mismatch. Upon pairing, the system becomes effectively quasi-two dimensional in the BEC regime. The behavior of T c bears similarity to that of a regular 3D population imbalanced Fermi gas, but with a more drastic departure from the regular 3D balanced case, featuring both intermediate temperature superfluidity and possible pair density wave ground state. Unlike a simple 1D optical lattice case, T c in the mixed dimensions has a constant BEC asymptote. PMID- 29021621 TI - Protein interaction network of alternatively spliced NudCD1 isoforms. AB - NudCD1, also known as CML66 or OVA66, is a protein initially identified as overexpressed in patients with chronic myelogenous leukemia. The mRNA of NudCD1 is expressed in heart and testis of normal tissues, and is overexpressed in several cancers. Previous studies have shown that the expression level of the protein correlates with tumoral phenotype, possibly interacting upstream of the Insulin Growth Factor - 1 Receptor (IGF-1R). The gene encoding the NudCD1 protein consists of 12 exons that can be alternative spliced, leading to the expression of three different isoforms. These isoforms possess a common region of 492 amino acids in their C-terminus region and have an isoform specific N-terminus. To determine the distinct function of each isoforms, we have localised the isoforms within the cells using immunofluorescence microscopy and used a quantitative proteomics approach (SILAC) to identify specific protein interaction partners for each isoforms. Localization studies showed a different subcellular distribution for the different isoforms, with the first isoform being nuclear, while the other two isoforms have distinct cytoplasmic and nuclear location. We found that the different NudCD1 isoforms have unique interacting partners, with the first isoform binding to a putative RNA helicase named DHX15 involved in mRNA splicing. PMID- 29021622 TI - The circadian transcriptome of marine fish (Sparus aurata) larvae reveals highly synchronized biological processes at the whole organism level. AB - The regulation of circadian gene expression remains largely unknown in farmed fish larvae. In this study, a high-density oligonucleotide microarray was used to examine the daily expression of 13,939 unique genes in whole gilthead sea bream (Sparus aurata) larvae with fast growth potentiality. Up to 2,229 genes were differentially expressed, and the first two components of Principal Component Analysis explained more than 81% of the total variance. Clustering analysis of differentially expressed genes identified 4 major clusters that were triggered sequentially, with a maximum expression at 0 h, 3 h, 9-15 h and 18-21 h zeitgeber time. Various core clock genes (per1, per2, per3, bmal1, cry1, cry2, clock) were identified in clusters 1-3, and their expression was significantly correlated with several genes in each cluster. Functional analysis revealed a daily consecutive activation of canonical pathways related to phototransduction, intermediary metabolism, development, chromatin remodeling, and cell cycle regulation. This daily transcriptome of whole larvae resembles a cell cycle (G1/S, G2/M, and M/G1 transitions) in synchronization with multicellular processes, such as neuromuscular development. This study supports that the actively feeding fish larval transcriptome is temporally organized in a 24-h cycle, likely for maximizing growth and development. PMID- 29021623 TI - Preference for novel faces in male infant monkeys predicts cerebrospinal fluid oxytocin concentrations later in life. AB - The ability to recognize individuals is a critical skill acquired early in life for group living species. In primates, individual recognition occurs predominantly through face discrimination. Despite the essential adaptive value of this ability, robust individual differences in conspecific face recognition exist, yet its associated biology remains unknown. Although pharmacological administration of oxytocin has implicated this neuropeptide in face perception and social memory, no prior research has tested the relationship between individual differences in face recognition and endogenous oxytocin concentrations. Here we show in a male rhesus monkey cohort (N = 60) that infant performance in a task used to determine face recognition ability (specifically, the ability of animals to show a preference for a novel face) robustly predicts cerebrospinal fluid, but not blood, oxytocin concentrations up to five years after behavioural assessment. These results argue that central oxytocin biology may be related to individual face perceptual abilities necessary for group living, and that these differences are stable traits. PMID- 29021625 TI - Quasi-two-dimensional superconductivity from dimerization of atomically ordered AuTe2Se4/3 cubes. AB - The emergent phenomena such as superconductivity and topological phase transitions can be observed in strict two-dimensional (2D) crystalline matters. Artificial interfaces and one atomic thickness layers are typical 2D materials of this kind. Although having 2D characters, most bulky layered compounds, however, do not possess these striking properties. Here, we report quasi-2D superconductivity in bulky AuTe2Se4/3, where the reduction in dimensionality is achieved through inducing the elongated covalent Te-Te bonds. The atomic resolution images reveal that the Au, Te, and Se are atomically ordered in a cube, among which are Te-Te bonds of 3.18 and 3.28 A. The superconductivity at 2.85 K is discovered, which is unraveled to be the quasi-2D nature owing to the Berezinsky-Kosterlitz-Thouless topological transition. The nesting of nearly parallel Fermi sheets could give rise to strong electron-phonon coupling. It is proposed that further depleting the thickness could result in more topologically related phenomena.Emergent phenomena often appear in crystals in the two dimensional limit but are rare in bulky compounds. Here, Guo et al. report a quasi-two-dimensional superconductivity in a bulk material AuTe2Se4/3 at 2.85 K, potentially owing to a topological transition. PMID- 29021626 TI - Vector Form of Symmetry Degree. AB - ABSRACT: Symmetry degree is utilized to characterize the asymmetry of a physical system with respect to a symmetry group. The scalar form of symmetry degree (SSD) based on Frobenius-norm has been introduced recently to present a quantitative description of symmetry. Here we present the vector form of the symmetry degree (VSD) which possesses more advantages than the SSD. Mathematically, the dimension of VSD is defined as the conjugacy class number of the symmetry group, the square length of the VSD gives rise to the SSD and the direction of VSD is determined by the orders of the conjugacy classes. The merits of applying VSD both for finite and infinite symmetry groups include the additional information of broken symmetry operators with single symmetry breaking perturbation, and the capability of distinguishing distinct symmetry breaking perturbations which exactly give rise to degenerate SSD. Additionally, the VSD for physical systems under symmetry breaking perturbations can be regarded as a projection of the initial VSD without any symmetry breaking perturbations, which can be described by an evolution equation. There are the same advantages by applying VSD for the accidental degeneracy and spontaneous symmetry breaking. PMID- 29021624 TI - MKK6 controls T3-mediated browning of white adipose tissue. AB - Increasing the thermogenic capacity of adipose tissue to enhance organismal energy expenditure is considered a promising therapeutic strategy to combat obesity. Here, we report that expression of the p38 MAPK activator MKK6 is elevated in white adipose tissue of obese individuals. Using knockout animals and shRNA, we show that Mkk6 deletion increases energy expenditure and thermogenic capacity of white adipose tissue, protecting mice against diet-induced obesity and the development of diabetes. Deletion of Mkk6 increases T3-stimulated UC P1 expression in adipocytes, thereby increasing their thermogenic capacity. Mechanistically, we demonstrate that, in white adipose tissue, p38 is activated by an alternative pathway involving AMPK, TAK, and TAB. Our results identify MKK6 in adipocytes as a potential therapeutic target to reduce obesity.Brown and beige adipose tissues dissipate heat via uncoupling protein 1 (UCP1). Here the authors show that the stress activated kinase MKK6 acts as a repressor of UCP1 expression, suggesting that its inhibition promotes adipose tissue browning and increases organismal energy expenditure. PMID- 29021627 TI - Dispersal of thermophilic beetles across the intercontinental Arctic forest belt during the early Eocene. AB - Massive biotic change occurred during the Eocene as the climate shifted from warm and equable to seasonal and latitudinally stratified. Mild winter temperatures across Arctic intercontinental land bridges permitted dispersal of frost intolerant groups until the Eocene-Oligocene boundary, while trans-Arctic dispersal in thermophilic groups may have been limited to the early Eocene, especially during short-lived hyperthermals. Some of these lineages are now disjunct between continents of the northern hemisphere. Although Eocene climate change may have been one of the most important drivers of these ancient patterns in modern animal and plant distributions, its particular events are rarely implicated or correlated with group-specific climatic requirements. Here we explored the climatic and geological drivers of a particularly striking Neotropical-Oriental disjunct distribution in the rove beetle Bolitogyrus, a suspected Eocene relict. We integrated evidence from Eocene fossils, distributional and climate data, paleoclimate, paleogeography, and phylogenetic divergence dating to show that intercontinental dispersal of Bolitogyrus ceased in the early Eocene, consistent with the termination of conditions required by thermophilic lineages. These results provide new insight into the poorly known and short-lived Arctic forest community of the Early Eocene and its surviving lineages. PMID- 29021628 TI - Unified treatment of spin torques using a coupled magnetisation dynamics and three-dimensional spin current solver. AB - A three-dimensional spin current solver based on a generalised spin drift diffusion description, including the bulk and interfacial spin Hall effects, is integrated with a magnetisation dynamics solver. The resulting model is shown to simultaneously reproduce the spin-orbit torques generated using the spin Hall effect, spin pumping torques generated by magnetisation dynamics in multilayers, as well as the spin transfer torques acting on magnetisation regions with spatial gradients, whilst field-like and spin-like torques are reproduced in a spin valve geometry. Two approaches to modelling interfaces are analysed, one based on the spin mixing conductance and the other based on continuity of spin currents where the spin dephasing length governs the absorption of transverse spin components. In both cases analytical formulas are derived for the spin-orbit torques in a heavy metal/ferromagnet bilayer geometry, showing in general both field-like and damping-like torques are generated. The limitations of the analytical approach are discussed, showing that even in a simple bilayer geometry, due to the non uniformity of the spin currents, a full three-dimensional treatment is required. The model is further applied to the analysis of the spin Hall angle in Pt by reproducing published experimental ferromagnetic resonance data in the bilayer geometry. PMID- 29021629 TI - Electrical magnetochiral effect induced by chiral spin fluctuations. AB - Chirality of matter can produce unique responses in optics, electricity and magnetism. In particular, magnetic crystals transmit their handedness to the magnetism via antisymmetric exchange interaction of relativistic origin, producing helical spin orders as well as their fluctuations. Here we report for a chiral magnet MnSi that chiral spin fluctuations manifest themselves in the electrical magnetochiral effect, i.e. the nonreciprocal and nonlinear response characterized by the electrical resistance depending on inner product of current and magnetic field. Prominent electrical magnetochiral signals emerge at specific temperature-magnetic field-pressure regions: in the paramagnetic phase just above the helical ordering temperature and in the partially-ordered topological spin state at low temperatures and high pressures, where thermal and quantum spin fluctuations are conspicuous in proximity of classical and quantum phase transitions, respectively. The finding of the asymmetric electron scattering by chiral spin fluctuations may explore new electromagnetic functionality in chiral magnets.The magnetism-induced chirality in electron transportation is of fundamental importantance in condensed matter physics but the origin is still unclear. Here the authors demonstrate that the asymmetric electron scattering by chiral spin fluctuations can be the key to the electrical magnetochiral effect in MnSi. PMID- 29021630 TI - Controlled Deposition of Particles in Porous Media for Effective Aquifer Nanoremediation. AB - In this study, a model assisted strategy is developed to control the distribution of colloids in porous media in the framework of nanoremediation, an innovative environmental nanotechnology aimed at reclaiming contaminated aquifers. This approach is exemplified by the delivery of humic acid-stabilized iron oxide nanoparticles (FeOx), a typical reagent for in situ immobilization of heavy metals. By tuned sequential injections of FeOx suspensions and of solutions containing a destabilizing agent (i.e. calcium or magnesium), the two fronts, which advance at different rates, overlap at the target location (i.e., the central portion) of the porous systems. Here, the particles deposit and accumulate irreversibly, creating a reactive zone. An analytical expression predicting the position of the clustering zone in 1D systems is derived from first principles of advective-dispersive transport. Through this equation, the sequence and duration of the injection of the different solutions in the medium is assessed. The model robustness is demonstrated by its successful application to various systems, comprising the use of different sands or immobilizing cations, both in 1D and 2D geometries. The method represents an advancement in the control of nanomaterial fate in the environment, and could enhance nanoremediation making it an effective alternative to more conventional techniques. PMID- 29021632 TI - Arctic cryosphere and Milankovitch forcing of Great Basin paleoclimate. AB - Although Great Basin paleoclimate history has been examined for more than a century, the orbital-scale paleoclimate forcings remain poorly understood. Here we show - by a detailed phasing analysis of a well-dated stalagmite delta18O time series - that Great Basin paleoclimate is linearly related to, but lagged, the 23,000 yr precession cycle in northern hemisphere summer insolation by an average of 3240 years (-900 to 6600 yr range) over the last two glacial cycles. We interpret these lags as indicating that Great Basin climate is sensitive to and indirectly forced by changes in the cryosphere, as evidenced by fast and strong linkages to global ice volume and Arctic paleoclimate indicators. Mid-latitude atmospheric circulation was likely impacted by a northward shifted storm track and higher pressure over the region arising from decreased sea ice and snow cover. Because anthropogenic warming is expected to reduce northern hemisphere snow and ice cover, continued increase in atmospheric greenhouse gases is likely to result in warming and drying over coming centuries that will amplify a warming trend that began ~2400 years ago. PMID- 29021631 TI - Deficiency of peroxiredoxin 6 or inhibition of its phospholipase A2 activity impair the in vitro sperm fertilizing competence in mice. AB - Prdx6 -/- male mice are subfertile, and the deficiency or inactivation of Peroxiredoxins (PRDXs) is associated with human male infertility. We elucidate the impact of the lack of PRDX6 or inhibition of its calcium-independent phospholipase A2 (Ca2+-iPLA2) activity by MJ33 on fertilization competence of mouse spermatozoa. Sperm motility, viability, fertilization and blastocyst rates were lower in Prdx6 -/- spermatozoa than in C57BL/6J wild-type (WT) controls (p <= 0.05). MJ33 inhibited the PRDX6 Ca2+-iPLA2 activity and reduced these parameters in WT spermatozoa compared with controls (p <= 0.05). Levels of lipid peroxidation and of superoxide anion (O2*?) were higher in Prdx6 -/- than in WT spermatozoa (p <= 0.05). MJ33 increased the levels of lipid peroxidation and mitochondrial O2*? production in treated versus non-treated WT spermatozoa. Acrosome reaction, binding to zona pellucida and fusion with the oolemma were lower in Prdx6 -/- capacitated spermatozoa than WT capacitated controls and lower in WT spermatozoa treated with the PRDX6 inhibitor. In conclusion, the inhibition of the PRDX6 Ca2+-iPLA2 activity promotes an oxidative stress affecting viability, motility, and the ability of mouse spermatozoa to fertilize oocytes. Thus, PRDX6 has a critical role in the protection of the mouse spermatozoon against oxidative stress to assure fertilizing competence. PMID- 29021635 TI - Four Cases of Valvular Diseases Due to Nonpenetrating Cardiac Trauma. AB - During the past 15 years we have managed four patients who suffered isolated valvular lesions from blunt chest trauma. Three patients were injured intraffic accidents and another fell from a height. Injured valves were mitral valves in three patients, tricuspid valves in two and aortic valve in one. One individual had a combination of aortic, mitral, and tricuspid valvular lesions.The procedures performed were mitral valve replacement in 2 patients and mitral repair in one, tricuspid valve replacement in one and repair in one, aortic valve replacement in one. The outcome of those patients were fairly well and all returned to their regular jobs. PMID- 29021634 TI - Lipopolysaccharide accelerates fine particulate matter-induced cell apoptosis in human lung bronchial epithelial cells. AB - OBJECTIVES: The aim of the study has been to investigate the effect of the Standard Reference Material of fine particulate matter (SRM 2786) on cytotoxicity and apoptosis in human lung bronchial epithelial cells (16HBE cells). Whether the lipopolysaccharide (LPS)-induced inflammation could further accelerate cell apoptosis induced by SRM 2786 stimulation has also been determined. MATERIAL AND METHODS: 16HBE cells were exposed to various doses of SRM 2786 with or without LPS. The following parameters: cytotoxicity, apoptotic rate, Bax/Bcl-2 expression, nitric oxide (NO) production, and reactive oxygen species (ROS) generation were measured. RESULTS: The results have shown that SRM 2786 induces cell damage and apoptosis of 16HBE cells as demonstrated by significant decrease in expression of Bcl-2 and increase in expression of Bax. When compared with the control cells, the apoptotic rate of cells treated by 500 MUg/ml of SRM 2786 increased from 2.43+/-0.21% to 43.96+/-2.95% (p < 0.01). Further, there was an elevated production of NO and ROS post SRM 2786 treatment. The level of NO in cells treated with 500 MUg/ml of SRM 2786 was 18.33+/-1.02 MUmol/l whereas that of control cells was 1.58+/-0.31 MUmol/l (p < 0.01). When compared with the control group, the level of intracellular ROS increased by 24% after treatment with 500 MUg/ml of SRM 2786 (p < 0.05). In addition, LPS pre-treatment may accelerate cell apoptosis by increasing generation of NO and ROS followed by SRM 2786 stimulation. When compared to cells treated with 125 MUg/ml of SRM 2786 alone, the levels of NO and ROS in cells pretreated with LPS increased by 28% and 11.6%, respectively (p < 0.05), and the apoptotic rate increased from 34.62+/ 4.44% to 54.11+/-3.34% (p < 0.01). CONCLUSIONS: These findings have suggested that in vitro exposure to SRM 2786 could induce 16HBE cells apoptosis probably by means of the mechanism involving the generation of free radicals, while the degree of apoptosis would be further aggravated under inflammation condition. Int J Occup Med Environ Health 2018;31(2):173-183. PMID- 29021633 TI - Structure and function of the alternatively spliced isoforms of the ecdysone receptor gene in the Chinese mitten crab, Eriocheir sinensis. AB - Alternative splicing is an essential molecular mechanism that increase the protein diversity of a species to regulate important biological processes. Ecdysone receptor (EcR), an essential nuclear receptor, is essential in the molting, growth, development, reproduction, and regeneration of crustaceans. In this study, the whole sequence of EcR gene from Eriocheir sinensis was obtained. The sequence was 45,481 bp in length with 9 exons. Moreover, four alternatively spliced EcR isoforms (Es-EcR-1, Es-EcR-2, Es-EcR-3 and Es-EcR-4) were identified. The four isoforms harbored a common A/B domain and a DNA-binding region but different D domains and ligand-binding regions. Three alternative splicing patterns (alternative 5' splice site, exon skipping, and intron retention) were identified in the four isoforms. Functional studies indicated that the four isoforms have specific functions. Es-EcR-3 may play essential roles in regulating periodic molting. Es-EcR-2 may participate in the regulation of ovarian development. Our results indicated that Es-EcR has broad regulatory functions in molting and development and established the molecular basis for the investigation of ecdysteroid signaling related pathways in E. sinensis. PMID- 29021636 TI - Evaluation of Pulmonary Artery Angioplasty for Lung Cancer Surgery: A Com-parison with Pneumonectomy. AB - We performed pulmonary artery angioplasty in 19 patients with lung cancer. The procedure consists of segmental or wedge resrection of the infiltrated pulmonary artery stem followed by reconstruction to avoid pneumonectomy and preserve pulmonary function. Among these cases "double sleeve resection" was performed in 10 cases. The 5-year survival of the angioplasty patients was poor at a rate of 11%, but not significantly different from the survival rates for those patients who underwent bronchoplasy alone or pneumonectomy. A promising prognosis may be expected in cases with N0 and N1 lymph node metastasis. However, this procedure may not replace pneumonectmy in patients with intact pulmonary function. PMID- 29021637 TI - Physical frailty and fitness of older driver. AB - AIM: to analyze the association between physical frailty and the results of fitness capacity exams for driving vehicles among elder Brazilians. METHODS: this is a cross sectional study, performed in traffic medicine clinics of the city of Curitiba (Brazil). The data was collected through the physical frailty tests, the use of a structured questionnaire, and searches on the records of the Brazilian National Register of Qualified Drivers.To analyze the information, the authors used descriptive statistics and non-parametrical tests. RESULTS: One hundred seventy two elderly people, of whom 56.4% pre-fragile and 43.6% non-fragile. 25.0% were considered fit for driving, 68.6% were considered fit, but with some restrictions, and 6.4% were placed as temporarily unfit for driving. There was no association between frailty condition and the final results for driving fitness (p= 0.8934). Physical frailty was significantly associated to the restrictions observed for those who were fit under restrictions (p= 0.0313), according to the weekly amount of kilometers traveled (p= 0.0222), and to car accidents occurred after the age of 60 (p= 0.0165). CONCLUSION: Physical frailty was significantly associated to the restrictions related to driving, reason to which makes important to manage frailty over this group of drivers. However, no association observed between physical frailty and the final result for driving vehicles. PMID- 29021638 TI - Real-time PCR assay for the diagnosis of pleural tuberculosis. AB - INTRODUCTION: The diagnosis of pleural tuberculosis requires an invasive and time consuming reference method. Polymerase chain reaction (PCR) is rapid, but validation in pleural tuberculosis is still weak. OBJECTIVE: To establish the operating characteristics of real-time polymerase chain reaction (RT-PCR) hybridization probes for the diagnosis of pleural tuberculosis. METHODS: The validity of the RT-PCR hybridization probes was evaluated compared to a composite reference method by a cross-sectional study at the Hospital Universitario de la Samaritana. 40 adults with lymphocytic pleural effusion were included. Pleural tuberculosis was confirmed (in 9 patients) if the patient had at least one of three tests using the positive reference method: Ziehl-Neelsen or Mycobacterium tuberculosis culture in fluid or pleural tissue, or pleural biopsy with granulomas. Pleural tuberculosis was ruled out (in 31 patients) if all three tests were negative. The operating characteristics of the RT-PCR, using the Mid-P Exact Test, were determined using the OpenEpi 2.3 Software (2009). RESULTS: The RT-PCR hybridization probes showed a sensitivity of 66.7% (95% CI: 33.2%-90.7%) and a specificity of 93.5% (95% CI: 80.3%-98.9%). The PPV was 75.0% (95% CI: 38.8%-95.6%) and a NPV of 90.6% (95% CI: 76.6%-97.6%). Two false positives were found for the test, one with pleural mesothelioma and the other with chronic pleuritis with mesothelial hyperplasia. CONCLUSIONS: The RT-PCR hybridization probes had good specificity and acceptable sensitivity, but a negative value cannot rule out pleural tuberculosis. PMID- 29021639 TI - Mutational spectrum in breast cancer associated BRCA1 and BRCA2 genes in Colombia. AB - INTRODUCTION: The risk of developing breast and ovarian cancer is higher in families that carry mutations in BRCA1 or BRCA2 genes, and timely mutation detection is critical. OBJECTIVE: To identify the presence of mutations in the Colombian population and evaluate two testing strategies. METHODS: From a total universe of 853 individual blood samples referred for BRCA1 and BRCA2 typing, 256 cases were analyzed by complete direct sequencing of both genes in Myriad Genetics, and the remaining 597 cases were studied by partial sequencing based on founder mutations in a PCR test designed by ourselves ("Profile Colombia"). RESULTS: We found 107 patients carrying deleterious mutations in this group of patients, 69 (64.5%) located in BRCA1, and 38 (35.5%) in BRCA2. Overall, we detected 39 previously unreported mutations in Colombia (22 in BRCA1 and 17 in BRCA2) and only 4 out of the 6 previously reported founder mutations. Sixty four out of 597 patients (10.7%) studied by "Profile Colombia" showed mutations in BRCA1 or BRCA2, and 41/256 patients (16%) showed mutations by complete BRCA1 BRCA2 sequencing. CONCLUSIONS: The spectrum of 44 different mutations in Colombia as detected in our study is broader than the one previously reported for this country. "Profile Colombia" is a useful screening test to establish both founder and new mutations (detection rate of 10.7%) in cases with family history of breast cancer. Complete sequencing shows a detection rate of 16.0%, and should complement the study of the genetic basis of this disease. PMID- 29021640 TI - Population attributable fractions for colorectal cancer and red and processed meats in Colombia - a macro-simulation study. AB - AIM: to estimate the population attributable risk of consumption of red and processed meat for colorectal cancer in Colombia. METHODS: to model the expected incidence of colorectal cancer in the hypothetical situation of no red and processed meat consumption in Colombia, for the year 2010. A dynamic macrosimulation model, PREVENT 3.01, was used to integrate available cancer incidence, meat consumption prevalence and associated risk data and to evaluate the impact of eliminating red and processed meat from the Colombian diet on national colorectal cancer incidence. RESULTS: Eliminating consumption of red meat altogether from the Colombian diet resulted in reductions in age standardized colorectal cancer incidence, translating in reductions of 331 males (PAF 13%) and 297 female cases (PAF 10%). Eliminating processed meats had slightly stronger effects, with decreases of 362 males (PAF 14%) and 388 female cases (PAF 13%). CONCLUSIONS: A substantial proportion of the burden of colorectal cancer in Colombia can be attributed to the consumption of red and processed meat. PMID- 29021641 TI - Zidovudine/Lamivudine vs. Abacavir/Lamivudine vs. Tenofovir/Emtricitabine in fixed-dose combinations as initial treatment for HIV patients: a systematic review and network meta-analysis. AB - INTRODUCTION: Initial treatment of the HIV is based on the use of three drugs, two of which are nucleoside analog reverse-transcriptase inhibitors. There are three combinations of these drugs which have been approved by different guidelines, each with divergent results in terms of efficacy and safety. OBJECTIVE: To compare the efficacy and safety of these three combinations. METHODS: Systematic review and network meta-analysis of randomized clinical trials comparing fixed doses of Tenofovir Disoproxil Fumarate / Emtricitabine (TDF/FTC), Abacavir / Lamivudine (ABC/3TC) and Zidovudine / Lamivudine (ZDV/3TC). RESULTS: Seven clinical trials met the eligibility criteria. The results suggested higher efficacy with TDF/FTC vs. ABC/3TC at 96 weeks and vs. ZDV/3TC at 48 weeks. However, there is clinical and statistical heterogeneity. Subgroup analysis were performed by third drug and by level of viral load prior to treatment, and found no differences in virological control. Network meta-analysis could only be carried out with TDF/FTC vs. ZDV/3TC, and the proportion of patients with virological response, with no differences at 48 weeks nor at 96 weeks. Direct comparisons showed an increased risk of bone marrow suppression of ZDV/3TC vs. TDF/FTC and of ABC/3TC hypersensitivity reactions vs. ZDV/3TC. CONCLUSIONS: The results did not show differences in effectiveness among the interventions. However, due to the heterogeneity of the third drug and the follow up time between the included studies, this result is not definitive. The results raise the need for further studies to help improve treatment recommendations in patients infected with HIV. PMID- 29021642 TI - Bevacizumab as a treatment for hereditary hemorrhagic telangiectasia in children: a case report. AB - CASE DESCRIPTION: Five-year-old female patient with hereditary hemorrhagic telangiectasia. CLINICAL FINDINGS: Deterioration of cardiopulmonary function with higher oxygen requirements secondary to pulmonary arteriovenous shunts, epistaxis. TREATMENT AND OUTCOME: The patient was treated with the monoclonal antibody bevacizumab, which inhibits the vascular endothelial growth factor, with good clinical outcome. CLINICAL RELEVANCE: Hereditary hemorrhagic telangiectasia is an autosomal dominant disorder characterized by arteriovenous malformations in different organs, making its clinical presentations varied. Systemic therapeutic options for a generalized disease are limited. The monoclonal antibody bevacizumab, seems to be a good option in this disorder. Although reported as successful in adult population, its use in pediatric population has not yet been reported. Here we report the use of bevacizumab in a 5-year-old female patient with hereditary hemorrhagic telangiectasia, showing clinical benefits and good outcome. PMID- 29021643 TI - Cryptococcal cerebellitis in no-VIH patient. AB - INTRODUCTION: Cryptococcosis is an opportunistic fungal infection whose etiology is Cryptococcus neofromans / C. gattii, complex which affects immunocompromised patients mainly. Meningeal infection is one of the most common presentations, but cerebellar affection is rare. CASE DESCRIPTION: Male patient with 65 old years, from an area of subtropical climate with chronic exposure to poultry, without pathological antecedents, who presented clinical picture consistent with headache, fever, seizures and altered mental status. CLINICAL FINDINGS AND DIAGNOSTIC METHODS: Initially without menigeal signs or intracranial hypertension and normal neurological examination. Later, the patient developed ataxia, dysdiadochokinesia and limb loss. By lumbar punction and image of nuclear magnetic resonance (NMR) cerebellitis cryptococcal was diagnosticated. TREATMENT: Antifungal therapy with amphotericin B and fluconazole was performed, however the patient died. CLINICAL RELEVANCE: The cryptococcosis has different presentations, it's a disease whose incidence has been increasing since the advent of the HIV / AIDS pandemy, however the commitment of the encephalic parenchyma and in particular the cerebellum is considered rare. In this way we are facing the first case of cryptococcal cerebellitis in our midst. PMID- 29021644 TI - Reflections on Afro-descendant origin and the outcome of dengue fever cases in Colombia. PMID- 29021645 TI - Research training during residency. PMID- 29021646 TI - What's inside. PMID- 29021647 TI - Roundup. PMID- 29021648 TI - Market forces in urological practice. PMID- 29021649 TI - Follow-up urodynamics in patients with neurogenic bladder. AB - INTRODUCTION: Neurogenic bladder patients are at long-term risk of secondary upper urinary tract damage. Symptoms are unreliable and follow-up urodynamics is the only method of ascertaining safety of bladder pressures. This review examines the recommendations, shortcomings and utilization of existing guidelines. The evidence with regard to follow-up urodynamics in different settings relevant to neurogenic bladder is evaluated and an algorithm is proposed. METHODS: A pubmed search was conducted for studies on follow-up urodynamics in patients with neurogenic bladder. Additional search was made of secondary sources including reviews and guidelines. RESULTS: The need for follow-up urodynamics should be considered in all patients undergoing an initial assessment and weighed against the risks. Existing guidelines, while unanimous in their recommendation of its utilization, give scant details regarding its incorporation in clinical management. Follow-up urodynamics can document efficacy and identify the need for escalation of therapy in patients on intermittent catheterization and antimuscarinics. Patients with spinal injury, spinal dysraphism and anorectal malformations are at higher risk for upper tract damage. Follow-up urodynamics can help identify patients suitable for intravesical botulinum and mark those destined for failure. Patients undergoing augmentation cystoplasty may be candidates for less aggressive urodynamic follow-up. CONCLUSIONS: Neurogenic bladder is managed by a broad cross-section of physicians. Clear recommendations and a management algorithm are important for improving patient care. Follow-up urodynamics can identify patients at risk, prevent renal dysfunction and improve the quality of life. There is an urgent need for more evidence on this important subject. PMID- 29021651 TI - MicroRNA-21 could be a molecular marker to predict the recurrence of nonmuscle invasive bladder cancer. AB - INTRODUCTION: High relapse rate of nonmuscle invasive bladder cancer (NMIBC) is a major challenge. Overexpression of microRNA-21 (miR-21) which targets phosphatase and tensin homolog (PTEN), a gene associated with malignancy, has been reported in the bladder tumor tissue compared to normal mucosa by us and others. We have tested whether miR-21 levels in bladder mucosa could predict tumor recurrence. METHODS: In a prospective cohort setting, tumor tissues and normal bladder mucosa (NBM) were taken from BC patients during transurethral resection of bladder tumor. Age- and ethnicity-matched NBM from benign prostate hyperplasia patients was taken as controls. The expression of miR-21 was analyzed using quantitative reverse transcription polymerase chain reaction. Patients were followed for 4 years for tumor reoccurrence. Postoperative recurrence were recorded and calculated by Kaplan-Meier curve. RESULTS: In 31 patients, miR-21 was up regulated (>4-fold, P = 0.003), and PTEN levels were significantly lower (<7 folds, P = 0.001) in tumor tissue relative to NBM. Moreover, the fold change in miR-21 levels was significantly higher (>3-folds, P = 0.03) in patients showing recurrence compared to those in which tumor did not recur. Further, Kaplan-Meier analysis shows overexpression of miR-21 corresponds to less time to recurrence with higher cumulative hazard. CONCLUSION: We found overexpression of miR-21 in tumor tissue and its association with recurrence, time to recurrence and invasiveness in BC. Quantification of miR-21 along with other pathological parameters could be more objective molecular approach to predict recurrence in NMIBC. PMID- 29021650 TI - Ureteral endometriosis: A systematic literature review. AB - INTRODUCTION: Ureteral endometriosis is a rare disease affecting women of childbearing age which presents with nonspecific symptoms and it may result in severe morbidity. The aim of this study was to review evidence about incidence, pathogenesis, clinical presentation, diagnosis, and management of ureteral endometriosis. MATERIALS AND METHODS: PubMed Central database was searched to identify studies reporting cases of ureteral endometriosis. "Ureter" or "Ureteral" and "Endometriosis" were used as key words. Database was searched for articles published since 1996, in English without restrictions regarding the study design. RESULTS: From 420 studies obtained through database search, 104 articles were finally included in this review, including a total of 1384 patients with ureteral endometriosis. Data regarding age, location, pathological findings, and interventions were extracted. Mean patients' age was 38.6 years, whereas the therapeutic arsenal included hormonal, endoscopic, and/or surgical treatment. CONCLUSIONS: Ureteral endometriosis represents a diagnostic and therapeutic challenge for the clinicians and high clinical suspicion is needed to identify it. PMID- 29021653 TI - Are there any factors affecting the outcome of endoscopic sclerotherapy in filarial chyluria? A prospective study. AB - INTRODUCTION: Filarial chyluria is a frequent problem in India. While endoscopic therapy is the mainstay of treatment, it is not always successful. We aimed to determine parameters that affect outcomes of endoscopic sclerotherapy for filarial chyluria (FC). METHODS: Prospectively maintained data of FC patients who received endoscopic sclerotherapy between June 2011 and March 2015 were analyzed. Sclerotherapy included either povidone-iodine (0.1%) or silver nitrate (1%). The parameters recorded included clinical evaluation, urinary triglyceride (TG)/cholesterol, sclerotherapy treatment, and follow-up. RESULTS: One hundred and fifty-seven patients (male: female, 104:53) with a mean age (+/- standard deviation [SD]) 41.12 +/- 13.68 years underwent endoscopic sclerotherapy. Grade II (68.88%) chyluria was a most common presentation followed by Grade III (25.69%). One hundred and forty-four patients responded whereas six patients failed to respond; another seven were lost to follow up, and twenty patients had recurrence. Overall success rate was 86.11%. Baseline urinary TG (mean +/- SD) between success and recurrence group was 195.51 +/- 164.73 mg/dl and 652.65 +/- 62.55 mg/dl and cholesterol (mean +/- SD) was 16.99 +/- 10.08 mg/dl and 89.07 +/- 39.87 mg/dl, respectively. Patient with urinary TGs >300 mg/dl and urinary cholesterol >30 mg/dl had 3.2 and 1.3 times higher chance to have recurrence after endoscopic sclerotherapy, respectively. Choice of sclerosing agent (silver nitrate 1% versus povidone-iodine 0.1%) had no difference in success rate, but silver nitrate had slightly higher complications rate (25% vs. 20%). A higher number of instillations (>3) was associated with better success rate. Majority of the complications were either Clavien Grade 1 or 2. CONCLUSIONS: The factors predicting recurrence were higher clinical grade, higher number of pretreatment courses, and high urinary TG and cholesterol. PMID- 29021652 TI - Urine and serum fetuin-A levels in patients with urolithiasis. AB - INTRODUCTION: Fetuin-A is a glycoprotein secreted by liver and has been shown to inhibit extraosseous mineralization. Urolithiasis may be a manifestation in the urinary tract due to fetuin deficiency in urine. The objective of this study was to compare the 24-h urine and serum fetuin-A levels of patients with and without urolithiasis. METHODS: Serum and 24-h urine fetuin-A levels were measured in 41 patients with bilateral, multiple, or recurrent urinary tract calculi (Group A) and 41 matched controls with no calculi (Group B). Fetuin levels were measured by enzyme linked immunosorbent assay. Serum and urine fetuin-A levels in the two groups were compared. RESULTS: The median (range) 24-h urine fetuin-A value in Group A was 11.9 (1.12-221) mg/day and in Group B was 37.7 (1.28-125) mg/day. This difference was statistically significant (Mann-Whitney test, P = 0.0169). The median (range) serum fetuin-A in Group A was 0.67 (0.05-2.68) g/L and in Group B was 0.99 (0.01-5.5) g/L. The difference between serum values in the two arms was not statistically significant (Mann-Whitney test, P = 0.1817). However, the serum creatinine-adjusted mean log serum fetuin and urine fetuin were significantly different in the two arms (P = 0.003). The mean +/- standard deviation (range) serum creatinine in Group A was 0.98 +/- 0.25 (0.56-1.58) mg% and in Group B was 0.83 +/- 0.16 (0.58-1.18) mg% (two sample t-test, P = 0.0031). CONCLUSIONS: Patients with urolithiasis have lower urine fetuin-A and creatinine adjusted serum fetuin-A levels. PMID- 29021654 TI - Use of a stopwatch to measure ejaculatory latency may not be accurate among Indian patients. AB - INTRODUCTION: Although the use of a stopwatch is recommended to record intravaginal ejaculatory latency time (IELT) for premature ejaculation, there is no Indian literature which assesses the reliability of this method among our patients. Hence, we assessed the accuracy of stopwatch-measured IELT and compared it with other methods such as number of thrusts and self-assessed IELT in an Indian context. METHODS: Between January 2015 and December 2015, couples with premature ejaculation (PE) confirmed with the Premature Ejaculation Diagnostic Tool were enrolled in this study. They were asked to report self-assessed IELT for the first 2 weeks, number of thrusts before ejaculation following vaginal penetration for the next 2 weeks, and stopwatch-clocked IELT for the last 2 weeks. At each 2-week interval, the couples answered erectile/ejaculatory performance anxiety index questionnaire (EPAI). The data were analyzed at the end of 6 weeks. RESULTS: A total of 42 couples with an average married life of 5.53 years were included in the study. Average stopwatch-clocked IELT was almost 1 min more than the self-reported IELT, which was statistically significant. The average number of thrusts reported was 6.31. Anxiety on the EPAI scale was maximum while using stopwatch to measure IELT. CONCLUSION: Use of stopwatch to clock the IELT does not appear to represent true IELT in Indian patients. Self assessed IELT correlated more accurately with symptoms of PE. PMID- 29021655 TI - Robot-assisted retroperitoneal lymph node dissection: Feasibility and outcome in postchemotherapy residual mass in testicular cancer. AB - INTRODUCTION: We aimed to evaluate the surgical feasibility, complication, and oncological outcome of robot-assisted retroperitoneal lymph node dissection (RA RPLND) in patients of testicular tumor with postchemotherapy residual retroperitoneal mass. METHODS: A total of 13 patients underwent RA-RPLND between January 2012 and September 2016 at our institute. A study was started on December 2015, so data were collected retrospectively and prospectively regarding patient demography, tumor characteristics, surgical, pathological outcome, and oncological outcome. RESULTS: RA-RPLND was successfully completed in all the 13 patients. Lateral approach was used in initial 12 patients with unilateral dissection in 11 patients and bilateral dissection after in 1 patient after repositioning in bilateral position. Supine robotic approach used in 1 patient. Median operative time was 200 min, median estimated blood loss was 120 ml, and median length of hospital stay was 4 days. The median yield of lymph node was 20. Three patients had positive lymph nodes, all had teratoma germ cell tumor. Ten patients had only necrosis in lymph nodes. After median follow-up 23 months (range 3-58 months), no systemic or retroperitoneal recurrence was found. Four patients developed chyle leak. One patient was managed conservatively with diet modification, one with intranodal lipiodol lymphangiography and two patients were managed surgically. CONCLUSION: RA-RPLND is safe and feasible for postchemotherapy residual mass with accepted compilation rate, but larger studies are required to establish its diagnostic and therapeutic utility along with safety of the procedure. PMID- 29021656 TI - A randomized controlled study comparing the standard, tubeless, and totally tubeless percutaneous nephrolithotomy procedures for renal stones from a tertiary care hospital. AB - INTRODUCTION: Percutaneous nephrolithotomy (PCNL) is an effective treatment for renal stones. Due to the significant pain and morbidity after standard PCNL because of nephrostomy tubes, various modifications of PCNL are being performed. We report a randomized trial comparing these modalities. MATERIALS AND METHODS: A total of 75 patients were randomized into three groups of 25 each: standard PCNL with nephrostomy tubes (Group 1), tubeless PCNL with ureteric stent and no nephrostomy (Group 2), and totally tubeless PCNL without ureteric catheter or nephrostomy (Group 3). Randomization was done at the end of the procedure for those patients satisfying the inclusion criteria based on duration of surgery, single puncture tract, intraoperative bleeding, stone burden, intact pelvicalyceal system, and no residual stones at the end of procedure. The outcomes measured were hemoglobin (Hb) drop, hemorrhage, need for blood transfusion, pyrexia, urine leak, pain score, analgesic requirement, and duration of hospital stay. RESULTS: There was no significant difference in hemorrhage, Hb drop, need for blood transfusion, and postoperative pyrexia among the groups. All patients except one in the standard group only had variable amount of urinary leak. The analgesic requirement and duration of hospital stay attained statistical significance in favor of tubeless and totally tubeless groups compared to the standard. CONCLUSIONS: Tubeless and totally tubeless PCNL are safe and effective method of renal stone management. Totally tubeless PCNL significantly reduced postoperative pain and morbidity compared to the tubeless method. PMID- 29021657 TI - Results of tubularized urethral plate urethroplasty in Megameatus Intact Prepuce. AB - OBJECTIVE: The megameatus variant of anterior hypospadias with an intact complete foreskin occurs in approximately 1%-3% of hypospadias. Hence, the objective of the study was to evaluate the results of tubularized urethral plate urethroplasty (TUPU) in megameatus intact prepuce (MIP). MATERIALS AND METHODS: A retrospective study (June 1996-June 2015) of MIP from our hypospadias registry was conducted. All patients with megameatus, either with an intact prepuce or with one previously removed, were included in the study. Case sheets of clinical records, investigations, clinical photographs, and videos were reviewed. Patients were classified into, glanular, coronal, subcoronal, and distal penile. TUPU were done. Patients were called for follow-up at 1, 3, 6, and 12 months postoperatively, and then yearly for the assessment of the cosmetic appearance and fistula, meatal stenosis, or other complications. RESULTS: Of 1026 patients with hypospadias, we identified 13 cases of megameatus variant of hypospadias; three of the 13 had been circumcized previously. Glanular approximation was done for the one patients of the glanular variant, and another had frenuloplasty. These two patients were excluded from the study. Incision in the inner preputial skin was closed in 10 patients to have an intact prepuce. Follow-up period varied from 6 months to 4 years (median follow-up 21/2 years). None of the patients developed complications such as fistula, meatal stenosis, and/or wound dehiscence. CONCLUSIONS: Surgical correction of MIP in the era of increased cosmetic awareness is justified. Excellent results are obtained with TUPU and along with spongioplasty and frenuloplasty because of availability of wide urethral plate and well-developed spongiosum in these patients. TUPU should be the preferred procedure in cases of MIP. PMID- 29021658 TI - Mini access guide to simplify calyceal access during percutaneous nephrolithotomy: A novel device. AB - INTRODUCTION: A precise puncture of the renal collecting system is the most essential step for percutaneous nephrolithotomy (PCNL). There are many techniques describing this crucial first step in PCNL including the bull's eye technique, triangulation technique, free-hand technique, and gradual descensus technique. We describe a novel puncture guide to assist accurate percutaneous needle placement during bull's eye technique. METHODS: The mini access guide (MAG) stabilizes the initial puncture needle by mounting it on an adjustable multidirectional carrier fixed to the patient's skin, which aids in achieving the "bull's eye" puncture. It also avoids a direct fluoroscopic exposure of the urologist's hand during the puncture. Sixty consecutive patients with solitary renal calculus were randomized to traditional hand versus MAG puncture during bull's eye technique of puncture and the fluoroscopy time was assessed. RESULTS: The median fluoroscopy screening time for traditional free-hand bull's eye and MAG-guided bull's eye puncture (fluoroscopic screening time for puncture) was 55 versus 21 s (P = 0.001) and the median time to puncture was 80 versus 55 s (P = 0.052), respectively. Novice residents also learned puncture technique faster with MAG on simulator. CONCLUSION: The MAG is a simple, portable, cheap, and novel assistant to achieve successful PCNL puncture. It would be of great help for novices to establish access during their learning phase of PCNL. It would also be an asset toward significantly decreasing the radiation dose during PCNL access. PMID- 29021659 TI - Occult renal cell carcinoma presenting as carcinomatous polyarthritis. AB - Carcinomatous polyarthritis (CP) is a rare paraneoplastic disorder which can be associated with various solid tumors and can even precede detection of the underlying malignancy. A 54-year-old male presented with migratory asymmetric inflammatory polyarthritis and high-grade fever for 6 months. On evaluation, he was diagnosed to have renal cell carcinoma (RCC). CP as an initial presentation of RCC was not described previously. PMID- 29021660 TI - 18F-fludeoxyglucose positron emission tomography computed tomography-guided diagnosis of prostatic and leptomeningeal tuberculosis. AB - Genitourinary tuberculosis contributes to 10%-14% of extrapulmonary TB. Prostate tuberculosis is rare and usually found incidentally following transurethral resection of the prostate for benign prostatic hyperplasia. We report a case of an immunocompetent patient with pyrexia of unknown origin, on evaluation with whole-body 18F-fludeoxyglucose positron emission tomography computed tomography scan found to have suspicious prostatic primary, with hypermetabolic abnormalities involving the brain. Histopathological diagnosis was established as multifocal tuberculosis involving prostate, meninges, and intracranial tuberculomas. PMID- 29021661 TI - Successful renal transplant in a pediatric patient with HIV-associated nephropathy. AB - HIV-associated nephropathy (HIVAN) is a pathological state of the kidneys due to longstanding, uncontrolled HIV infection. With the rapid progression of HIVAN to end-stage kidney failure, there is a significant potential for renal transplantation to improve the quality of life in these patients. Numerous studies have been recently published documenting renal transplantation as a primary treatment for HIVAN. With the use of highly active antiretroviral therapy, allograft and patient survival rates of HIV-infected persons are nearly identical to those who are HIV negative. Our case study documents the successful role of renal transplantation in treating HIVAN in a 9-year-old male child. PMID- 29021662 TI - Embolized prostatic brachytherapy seeds mimicking acute chest pain syndromes. AB - A 59-year-old male with a history of nonobstructive coronary artery disease, diabetes mellitus, hypertension, and prostate cancer presented to the hospital with 1-day history of pleuritic chest pain. Initial workup for acute coronary event was unremarkable. Chest X-ray revealed multiple small radial densities which were linear and hyperdense, consistent with embolization of metallic seeds to the pulmonary circulation. The patient was noted to have had radioactive metallic seeds implanted for prostate cancer 6 months ago. Diagnosis of pulmonary embolization of prostatic seeds is challenging as they frequently present with chest pain mimicking acute coronary syndromes. PMID- 29021663 TI - A game changing LATITUDE: Role of abiraterone plus prednisolone in metastatic hormone-sensitive prostate cancer. PMID- 29021665 TI - Vertical spinal instability and cervical spondylosis: Is it focal or multisegmental? PMID- 29021664 TI - Corrigendum to "Indian National Association for Study of the Liver (INASL) guidance for antiviral therapy against HCV infection: Update 2016" [J. Clin. Exp. Hepatol. 6 (2016) 119-145]. AB - [This corrects the article DOI: 10.1016/j.jceh.2016.07.001.]. PMID- 29021666 TI - Short neck, short head, short spine, and short body height - Hallmarks of basilar invagination. PMID- 29021667 TI - Combined anteroposterior fixation using a titanium cage versus solely posterior fixation for traumatic thoracolumbar fractures: A systematic review and meta analysis. AB - STUDY DESIGN: Systematic review with meta-analysis. OBJECTIVE: Additional anterior stabilization might prevent posterior implant failure, but over time, the disadvantageous of bone grafts have become evident. The objective of this systematic review was to compare risks and advantages of additional anterior stabilization with a titanium cage to solely posterior fixation for traumatic thoracolumbar fractures. METHODS: An electronic search was performed in the literature from 1980 to March 2016. Studies comparing only posterior with anteroposterior fixation by means of a titanium cage were included in this study. Data extraction and Cochrane risk of bias assessment were done by two independent authors. In addition, the PRISMA statement was followed, and the GRADE approach was used to present results. RESULTS: Of the 1584 studies, two randomized controlled trials (RCTs) and one retrospective cohort study were included in the meta-analysis. The RCTs reported evidence of high quality that anteroposterior stabilization maintained better kyphosis correction than posterior stabilization alone. However, these results were neutralized in the meta-analysis by the cohort study. Implant failure was reported by one study, in the posterior group. No differences in follow-up visual analog scale scores, neurologic improvement, and complications were found. Operation time, blood loss, and hospital stay all increased in the anteroposterior group. CONCLUSIONS: Patients with a highly comminuted or unstable fracture could benefit from combined anteroposterior stabilization with a titanium cage, for some evidence suggests this prevents loss of correction. However, large randomized studies still lack. There is a risk of cage subsidence, and increased perioperative risks have to be considered when choosing the optimal treatment. PMID- 29021668 TI - Influence of prevertebral soft tissue swelling on dysphagia after anterior cervical discectomy and fusion using a rectangular titanium stand-alone cage. AB - BACKGROUND: Postoperative oropharyngeal complications such as dysphagia after anterior cervical spine surgery are some of the least discussed surgery-related complications. The purpose of this retrospective study is to investigate the incidence and possible risk factors for 30-day postoperative dysphagia after anterior cervical discectomy and fusion (ACDF). MATERIALS AND METHODS: This study included 152 consecutive patients who underwent 1- or 2-level ACDF using a rectangular titanium stand-alone cage in our institutes. Surgery-related dysphagia early after surgery was analyzed based on hospital charts. Radiological evaluation of prevertebral soft tissue swelling (PSTS) was performed by comparing plain lateral radiographs of the cervical spine before surgery with those after surgery. The percentage of PSTS (%PSTS) was defined by retropharyngeal soft tissue diameter divided by vertebral diameter. Positive %PSTS was determined when %PSTS exceeded its mean + 2 standard deviations. RESULTS: Twelve patients (7.9%) demonstrated prolonged symptoms of dysphagia within 30-day postoperatively. All patients eventually demonstrated satisfactory or acceptable recovery late after surgery, except one case of hypoglossal nerve palsy. %PSTS was significantly highest early after surgery and returned to presurgical levels within 30 days after surgery. Statistical analysis suggested that the positive %PSTS at C3 or C4 level early after surgery was significantly associated with the occurrence of postoperative dysphagia. CONCLUSIONS: Although the possible reasons for postoperative dysphagia may not only be multifactorial but also be highly surgeon dependent, such a complication is still underestimated and needs to be carefully resolved. %PSTS appeared to be easy and reliable index to judge the possible risk of postoperative dysphagia. PMID- 29021670 TI - Preliminary experience with lumbar facet distraction and fixation as treatment for lumbar spinal stenosis. AB - OBJECTIVES: To assess the properties of facet fixation with the Facet Wedge system in patients affected by lumbar spinal stenosis (LSS). SUMMARY OF BACKGROUND DATA: Implant of intra-articular spacers is an emerging technique for lumbar degenerative disease. METHODS: This study included forty patients (Group 1) with symptomatic LSS in whom intra-articular spacers have been implanted along with microdecompression (MD) of the neural structures. Group 1 has been compared with a homogeneous group of patients with LSS treated with MD without intra articular spacers implant (Group 2). Clinical findings have been observed preoperatively and 3, 6, 12 months postoperatively using dedicated questionnaires (Zurich Claudication Questionnaire, visual analog scale, and Oswestry disability index). RESULTS: One year following surgical treatment, 87% of the patients presented with good improvement of symptoms and 97% referred satisfaction for surgery. Overall, patients of Group 1 presented with significantly better clinical outcome when compared with the control group (P < 0.01). CONCLUSIONS: Intra-articular spacers showed significant and clinically meaningful improvements in pain and disability for up to 1 year. These findings need further studies and a longer follow-up. PMID- 29021669 TI - Is there a correlation between the spinal instability neoplastic score and mechanical pain in patients with metastatic spinal cord compression? A prospective cohort study. AB - INTRODUCTION: The decision for selecting patients for surgical treatment of metastatic spinal cord compression (MSCC) is challenging even for experienced surgeons. Recently, the spinal instability neoplastic score (SINS) has been proposed to help surgeons in the evaluation of spinal stability in the setting of spinal metastases. This study aimed to evaluate the correlation between SINS and preoperative visual analog scale (VAS), as well as the pre- and post-operative association of the VAS and neurological function. METHODS: A prospective cohort study was conducted in a tertiary referral cancer center. Seventy-nine patients with MSCC were surgically treated from June 2012 to March 2015. Pain status before and after surgery was assessed using VAS score, and neurological status was evaluated using the American Spine Injury Association Impairment Scale (AIS) before and after surgery. Pain was classified as VAS (0-4) none or mild pain; VAS (5-8) moderate pain; and VAS (9-10) as severe pain. Neurological function was scored as AIS A: Complete deficits, AIS B-D: Incomplete deficits, AIS E: Neurologically intact. SINS degrees were classified as 0-6-stable; 7-12 potentially unstable, and 13-18-unstable. Spearman's correlation coefficient test was utilized for correlation between pain and SINS; Chi-square association test was utilized for evaluating pre- and post-operative pain and AIS, as well as the association between SINS and tumor types. RESULTS: A higher SINS correlates with severe mechanical pain preoperatively (rho = 0.38, P = 0.001); surgical procedure improved neurological function (P = 0.0001), and decrease pain (P = 0.84). Finally, a higher SINS was also associated with osteolytic tumors (P = 0.03). CONCLUSIONS: The SINS correlates with mechanical pain. Surgery provides a significant improvement in pain and neurological status, especially in patients who presented higher SINS scores and some degree of preoperative neurological function. PMID- 29021671 TI - Atlantoaxial Langerhans cell histiocytosis radiographic characteristics and corresponding prognosis analysis. AB - BACKGROUND: Langerhans cell histiocytosis (LCH) may affect atlas and axis, and there were very few published cases describing a characteristic of LCH of atlantoaxial. OBJECTIVE: The objective of the study is to investigate the image manifestations of atlantoaxial LCH to improve the in-depth comprehension on it. MATERIALS AND METHODS: A retrospective study was done of computed tomography (CT) and magnetic resonance imaging in atlas and axis and prognosis was analyzed. RESULTS: The study included 41 patients (average age 12.9 years and median age 8 years) diagnosed with LCH, with 75.6% under 15 years old. Eighty-four lesions of LCH were identified including 47 in the atlas and 37 in the axis. The osteolytic bone destructions in the atlas and axis were characterized, 22% accompanied by sclerotic margins. Thirteen patients had a compression fracture, 11 in the lateral mass of the atlas and 2 in the C2 vertebral body. Sixteen and three patients had atlantoaxial malalignment and dislocation, respectively. On T2 weighted images, 68.9% showed iso- or low-signal intensity, 27.6% showed hyperintensity signal, and 3.4% showed heterogeneous signal. On postcontrast images, 81.9% showed significant enhancement, 12.5% showed moderate enhancement, and 6.3% showed mild enhancement. CT reexamination of 14 patients indicated atlantoaxial bone destruction relatively repaired in 12 patients. Thirty-three patients were a follow-up, 81.8% had no significant symptoms and 18.2% with remaining symptoms. CONCLUSIONS: The atlas and axis were affected by LCH, mainly in children. The lateral mass was easily affected and compressed, destruction of the atlas and axis could lead to atlantoaxial joint instability. The prognosis was good in most of the patients. PMID- 29021672 TI - The size and shape of the foramen magnum in man. AB - BACKGROUND: The foramen magnum (FM) has garnered broad interest across the disciplines of anthropology, comparative anatomy, evolutionary biology, and clinical sciences. Most studies regarding the structure of the FM in humans have been intrapopulation morphometric studies rather than interpopulation morphologic studies. The few studies assessing the morphology of the foramen have utilized ambiguous and subjective descriptors to describe foraminal shape and are, consequently, difficult to reproduce. Therefore, detailed study of FM shape among craniofacially and geographically diverse populations through reproducible methods is warranted. OBJECTIVES: The aim of this study was to assess intersex and interpopulation differences in FM size and shape among diverse populations. MATERIALS AND METHODS: The study analyzed 152 FMs of varied sex and race via traditional and geometric morphometric methods. RESULTS AND CONCLUSIONS: The study demonstrates that, within each distinct population, the size of the FM is significantly larger in males than in females; however, there are no significant differences in the shapes of the foramina between sexes. However, when comparing different populations to one another, there are significant differences with regard to both the size and shape of the FM. This study also presents a new model of FM ontogeny. Specifically, the growth occurring between the anterior and posterior foraminal boundaries before 5 years of age predicts the ultimate shape of the adult FM. PMID- 29021673 TI - Risk factors for 30-day outcomes in elective anterior versus posterior cervical fusion: A matched cohort analysis. AB - OBJECTIVE: Cervical spine fusion is the preferred treatment modality for a variety of degenerative and/or myelopathic disorders. Surgeons select between two approaches (anterior or posterior cervical fusion [ACF; PCF]) based on pathoanatomical features and spinal levels involved. Complications and outcome profiles between the approaches following elective surgery have not been systematically investigated. METHODS: Adult patients undergoing elective ACF or PCF were extracted from the American College of Surgeons National Surgical Quality Improvement Program years 2011-2014. Five hundred twenty-eight patients (264 ACF and 264 PCF) were matched 1:1 by age, sex, functional status, vertebral levels operated, and the American Society of Anesthesiologists classification. Multivariable regression was performed by surgical approach for operation time, complications, hospital length of stay (HLOS), and discharge destination, controlling for body mass index and comorbidities. Mean differences (B), odds ratios (ORs), and 95% confidence intervals (CIs) are reported. RESULTS: Compared to ACF, PCF was associated with increased odds of blood transfusions >1 unit (OR = 4.31, 95% CI [1.18-15.75]; P = 0.027) and failure to discharge to home (OR = 3.68 [2.17-6.25]; P < 0.001), and increased mean HLOS (B = 1.72 days [1.19-2.26]; P < 0.001). No differences in operation time, other complications, or reoperation rates were found by surgical approach. CONCLUSIONS: In a matched cohort analysis by age, sex, functional and physical status, and vertebral levels, elective PCF is associated with increased HLOS and increased likelihood of failing to discharge to home compared to ACF without increased risk of 30-day complications. Increased blood transfusion volume is noted for patients undergoing PCF. Future prospective studies are warranted. PMID- 29021674 TI - The efficacy of sagittal cervical spine subtyping: Investigating radiological classification methods within 150 asymptomatic participants. AB - AIMS: The aim of this study is to (1) compare and contrast cervical subtype classification methods within an asymptomatic population, and (2) identify inter methodological consistencies and describe examples of inconsistencies that have the potential to affect subtype classification and clinical decision-making. METHODS: A total of 150 asymptomatic 18-30-year-old participants met the strict inclusion criteria. An erect neutral lateral radiograph was obtained using standard procedures. The Centroid, modified Takeshima/Herbst methods and the relative rotation angles in cases of nonagreement were used to determine subtype classifications. Cohen's kappa coefficient (kappa) was used to assess the level of agreement between the two methods. RESULTS: Nonlordotic classifications represented 66% of the cohort. Subtype classification identified the cohort as, lordosis (51), straight (37), global kyphosis (30), sigmoidal (13), and reverse sigmoidal (RS) (19). Cohen's kappa coefficient indicated that there was only a moderate level of agreement between methods (kappa = 0.531). Methodological agreement tended to be higher within the lordotic and global kyphotic subtypes whereas, straight, sigmoidal, and RS subtypes demonstrated less agreement. CONCLUSION: This is the first study of its type to compare and contrast cervical classification methods. Subtypes displaying predominantly extended or flexed segments demonstrated higher levels of agreement. Our findings highlight the need for establishing a standardized multi-method approach to classify sagittal cervical subtypes. PMID- 29021675 TI - Surgical treatment of bilateral nondisplaced isthmic lysis by interlaminar fixation device. AB - STUDY DESIGN: Spondylolysis is a defect in the portion of pars interarticularis. The latter affects approximately 6% of the population. It is caused by repetitive trauma in hyperextension. Low back pain is the most common symptom. METHODS: We implanted interspinous process devices in 12 patients with isthmic lysis without spondylolisthesis for low back pain. The purpose of the surgery was to conduct a minimally invasive procedure. RESULTS: In eight cases, patients became asymptomatic. In two cases, there has been a considerable improvement. In two cases, no change had been noted. CONCLUSION: This good result motivates us to consider this approach a part of therapeutic arsenal for some cases of spondylolysis. PMID- 29021677 TI - A very rare spinal cord tumor primary spinal oligodendroglioma: A review of sixty cases in the literature. AB - LITERATURE REVIEW: In this study, we evaluated a case of primary spinal oligodendroglioma (PSO) with a rare localization between L3 and S2, and also examined sixty cases in the literature in terms of demographic characteristics, clinical, radiological, and histopathological characteristics, and treatment planning. A case of PSO has been presented, and the relevant literature between 1931 and 2016 was reviewed. A total of 57 papers regarding PSO were found and utilized in this review. The main treatment options include radical surgical excision with neuromonitoring, followed by radiotherapy. Despite these treatment protocols, the relapse rate is high, and treatment does not significantly prolong survival. Oligodendrogliomas are rare among the primary spinal cord tumors. Oligodendrogliomas are predominantly found in the cervical spinal cord, thoracic spinal cord, or junctions during childhood and adulthood. Extension to the sacral region, inferior to the Conus, is very rare. Furthermore, of the sixty cases in the literature, the case we present here is the first to be reported in this particular age group. These localizations usually occur in the pediatric age group and after relapses. While for a limited number of cases the oligodendroglioma initiates in the thoracic region and reaches as far as L2, we encountered a case of an oligodendroglioma within the range of L3 to S2. Clinical findings are observed in accordance with location, and magnetic resonance imaging is the gold standard for diagnosis. PMID- 29021678 TI - Surgical planning for cervical deformity based on a 3D model. AB - The treatment of fixed cervical deformity is complex, but the principles guiding its correction remain the same as in deformity of other spinal regions, with the goal of deformity correction that results in a solid fusion with adequate decompression of the neural elements. In these challenging cases, osteotomies are necessary to mobilize the rigid spine and to obtain the desired correction, but they can be associated with increased risk of complications. Therefore, careful preoperative planning and a complete understanding of the anatomic variations allow patient-tailored approaches with and case specific techniques for the optimal and safe treatment of a variety of complex cervical deformities. We present a case report with a complex spinal deformity where a 3D model was used for surgical strategy that allowed us to "simulate" the osteotomies and get a better correction of the cervical deformity. PMID- 29021676 TI - "Stealth cranioplasty:" A novel endeavor for symptomatic adult Chiari I patients with syringomyelia: Technical note, appraisal, and philosophical considerations. AB - AIM AND OBJECTIVE: In this article, we describe a novel technique of reconstruction of posterior fossa by cranioplasty with use of preshaped titanium mesh following posterior fossa decompression (PFD) for Chiari malformation type I (CMI) with syringomyelia (SM) in symptomatic adults. MATERIALS AND METHODS: Eleven patients underwent limited PFD and expansive cranioplasty with preshaped titanium mesh, what we term as "Stealth Cranioplasty" (SCP), following arachnoid preserving duraplasty (APD) and hexagonal tenting of the duraplasty with the cranioplasty (HTDC) for the management of symptomatic adult CMI with SM. All these patients had syringes extending from 3 to >10 vertebral levels. RESULTS: Seven male and four female symptomatic CMI adult patients, between age ranges of 22 and 44 years (mean 29.45 years), presented with different neurological symptoms related to CMI and SM for 6-84 months (mean 37.09 months). All the patients underwent PFD, APD followed by SCP and HTDC and were followed up for 7 54 months (mean 35.90 months). Of 11 patients, 8 patients improved according to the Chicago Chiari Outcome Scale (CCOS) with score of 13-15 while 3 patients remained unchanged with CCOS of 12, and there was no worsening. There was no complication related to Chiari surgery in any of the patients. All the patients had good reestablishment of cisterna magna. Two patients had marked reduction of syrinx while eight patients had moderate-to-mild reduction and one patient had no change of syrinx. None of the patients needed redo surgery. CONCLUSION: SCP is an effective, fruitful, and cost-effective technique for the management of symptomatic adult CMI with SM. This technique has the advantages of preventing complications and recurrences in addition to the improvement of symptoms by addressing the basic pathology. PMID- 29021679 TI - A rare case of a vertebrojugular arteriovenous fistula: A case report and review of literature. AB - Vertebrojugular fistulas have been described in the literature associated with blunt or penetrating injury and iatrogenic or spontaneous development. Its presentation may be broad and may include symptoms of radiculopathy, vertebrobasilar insufficiency, tinnitus, and bruit. However, so far, no direct cardiac complications had been reported. Here, we describe a case of an 86-year old female who suffered a C5 vertebral fracture secondary to a ground-level fall that was initially treated conservatively due to the onset of new severe atrial fibrillation. However, the patient was later on taken to surgery due to progressive neurologic deterioration. Intraoperative complications led to the diagnosis of a vertebral-jugular fistula that was successfully embolized. The effective obliteration of the fistulae led to the recovery of both neurologic and cardiac symptoms. PMID- 29021680 TI - Nondysraphic cervicomedullary intramedullary lipoma. AB - Spinal cord lipomas are usually associated with spinal dysraphism and is most common in lumbosacral region. Spinal intradural lipoma is a rare condition accounting for less than 1% of spinal cord tumours and is most prevalent in cervicodorsal region. Intramedullary spinal cord lipoma of cervical spine not associated with spinal dysraphism is one of the rarest lesions. They usually present insidiously with slowly progressive myelopathic deficits. We present a case of nondysraphic intramedullary spinal cord lipoma with exophytic component and intracranial extension. A 30 year male patient presented with wasting of muscles of left shoulder and left forearm with resultant weakness for last two months and myelopathic signs. Magnetic resonance imaging revealed a T1 hyperintense , T2 hypointense lesion on the dorsal aspect of cervical spinal cord with intracranial extension and exophytic component. There was no contrast enhancement, fat suppression image indicated a lipoma. The patient underwent cervical laminectomy with foramen magnum decompression with subtotal resection of intramedullary lipoma. Histopathology examination confirmed the diagnosis of lipoma. Subtotal resection of intramedullary lipoma is a reasonable and acceptable surgical option considering the benign nature of lesion and high probability of neurological deterioration due to dense adhesion between lipoma and neural tissue. PMID- 29021681 TI - Acute spinal cord compression caused by atypical vertebral hemangioma. AB - Vertebral hemangioma is common, benign lesion that occurs mostly in the body of vertebral bones and is mostly asymptomatic although they may occasionally extend into the posterior elements. An isolated location in the neural arch of vertebrae is extremely rare. An acute spinal cord compression by an exceptional hemangioma involving spinous process of the seventh thoracic vertebra and respecting vertebral body in a 40-year-old woman is reported. On magnetic resonance imaging of the spine, the lesion was hypointense on T1-weighted image, hyperintense on T2 weited image, and enhancing avidly, causing compression of spinal cord. Our case is exceptional by the rapidly character of symptom installation and by atypical and elective involvement of spinous process. PMID- 29021682 TI - Spontaneous regression of retro-odontoid post traumatic cicatrix following occipitocervical fixation. AB - This case report describes a patient who presented with myelopathy secondary to a large retro-odontoid post traumatic cicatrix. The objective of this study was to discuss the clinical presentation, pathogenesis, imaging, and surgical management of pseudoarthrosis tissue mass associated with odontoid nonunion. Atlantoaxial subluxation (AAS) has been widely reported in patients with rheumatoid arthritis. AAS leads to repeated cycles of partial tear and repair of ligaments around the altantoaxial complex, resulting in the formation of periodontoid mass (pseudotumor). It is thought that formation of retro-odontoid post traumatic mass (cicatrix), in certain cases of odontoid fracture, is because of similar pathology. This is a retrospective review of case note. Here, the patient underwent posterior decompression through a C1-C2 laminectomy and occipitocervical (C0-C4) fusion with instrumentation, which resulted in dramatic improvement in his symptoms and spontaneous regression of retro-odontoid post traumatic cicatrix. We have described an interesting and a rare case of a large pseudoarthrosis tissue mass associated with odontoid nonunion, which regressed following stand-alone posterior instrumentation. To the best of our knowledge, only a handful of such cases of spontaneous regression of retro-odontoid post traumatic cicatrix following occipitocervical fixation have been described in literature, and our case adds to the growing list of such cases and may help in understanding the natural history of the disease process one day. Although rare, post traumatic cicatrix should be considered as a differential diagnosis of enhancing retro-odontoid mass, especially if there is any history of cervical spine trauma. PMID- 29021683 TI - Aarskog-Scott syndrome: An unusual cause of scoliosis. AB - A 16-year-old boy who had been diagnosed previously as Aarskog-Scott syndrome (AAS), referred to our clinic with shoulder asymmetry for 1 year. Results of spine examination showed a 52 degrees right thoracic curve at T3-T11. Surgery was planned, and T1-L1 posterior instrumentation and fusion were performed. After surgery, satisfactory correction was achieved, and during 10 years follow-up, the patient had no complaints. AAS is a X-linked genetic disorder with facial, genital, and skeletal manifestations. Scoliosis is not reported as a typical finding of AAS, and there is no reported case in the English literature. Due to mutation affecting the developing skeleton tissue, spinal deformities may develop. In our case, concave side fusion was seen at the deformity. Although we do not know any specific pattern of the scoliotic deformity of this syndrome, surgical correction of the deformity can be difficult because of the premature fusion at these levels. PMID- 29021684 TI - Use of C2 vertebroplasty and stereotactic radiosurgery for treatment of lytic metastasis of the odontoid process. AB - Improvements in cancer therapy have led to increased patient survival times in spite of metastatic spinal disease in many forms of cancer. Conventional treatment methods often employ radiotherapy with or without surgery depending on the neurological status, mechanical instability, and the extent of tumor. Percutaneous vertebroplasty as well as stereotactic radiosurgery (SRS) have arisen as common modalities of treatment of spinal metastasis in which neurological compromise or spinal instability and deformity is not of significant concern. These treatments, when used in combination, have been shown to provide early pain relief and effective tumor control while avoiding surgical resection, fixation, and lengthy recovery times. We present a case unique in the literature for the use of this combination treatment for tumors of the C2 vertebral body. While limited in application to patients without overt atlantoaxial instability or significant spinal canal compromise, we believe it provides a significant benefit in decreasing morbidity and improving early adherence to systemic therapy. PMID- 29021686 TI - Hydatid disease of the spine: A rare case. PMID- 29021685 TI - Idiopathic thoracic transdural intravertebral spinal cord herniation. AB - Idiopathic spinal cord herniation is a rare and often missed cause of thoracic myelopathy. The clinical presentation and radiological appearance is inconsistent and commonly confused with a dorsal arachnoid cyst and often is a misdiagnosed entity. While ventral spinal cord herniation through a dural defect has been previously described, intravertebral herniation is a distinct entity and extremely rare. We present the case of a 70-year old man with idiopathic thoracic transdural intravertebral spinal cord herniation and discuss the clinico radiological presentation, pathophysiology and operative management along with a review the literature of this unusual entity. PMID- 29021687 TI - "Formation" of Chiari "malformation:" Nature's philosophical way of adaptation. PMID- 29021689 TI - Applications of molecular markers in the discrimination of Panax species and Korean ginseng cultivars (Panax ginseng). AB - The development of molecular markers is one of the most useful methods for molecular breeding and marker-based molecular associated selections. Even though there is less information on the reference genome, molecular markers are indispensable tools for determination of genetic variation and identification of species with high levels of accuracy and reproducibility. The demand for molecular approaches for marker-based breeding and genetic discriminations in Panax species has greatly increased in recent times and has been successfully applied for various purposes. However, owing to the existence of diverse molecular techniques and differences in their principles and applications, there should be careful consideration while selecting appropriate marker types. In this review, we outline the recent status of different molecular marker applications in ginseng research and industrial fields. In addition, we discuss the basic principles, requirements, and advantages and disadvantages of the most widely used molecular markers, including restriction fragment length polymorphism, random amplified polymorphic DNA, sequence tag sites, simple sequence repeats, and single nucleotide polymorphisms. PMID- 29021688 TI - Role of ginsenosides, the main active components of Panax ginseng, in inflammatory responses and diseases. AB - Panax ginseng is one of the most universally used herbal medicines in Asian and Western countries. Most of the biological activities of ginseng are derived from its main constituents, ginsenosides. Interestingly, a number of studies have reported that ginsenosides and their metabolites/derivatives-including ginsenoside (G)-Rb1, compound K, G-Rb2, G-Rd, G-Re, G-Rg1, G-Rg3, G-Rg5, G-Rh1, G Rh2, and G-Rp1-exert anti-inflammatory activities in inflammatory responses by suppressing the production of proinflammatory cytokines and regulating the activities of inflammatory signaling pathways, such as nuclear factor-kappaB and activator protein-1. This review discusses recent studies regarding molecular mechanisms by which ginsenosides play critical roles in inflammatory responses and diseases, and provides evidence showing their potential to prevent and treat inflammatory diseases. PMID- 29021690 TI - Effect of Korean Red Ginseng in chronic liver disease. AB - Chronic liver disease, one of the most common diseases, typically arises from nonalcoholic fatty liver disease, alcoholic liver disease, chronic viral hepatitis, or hepatocellular carcinoma. Therefore, there is a pressing need for improved treatment strategies. Korean Red Ginseng has been known to have positive effects on liver disease and liver function. In this paper, we summarize the current knowledge on the beneficial effects of Korean Red Ginseng on chronic liver disease, a condition encompassing nonalcoholic fatty liver disease, alcoholic liver disease, chronic viral hepatitis, and hepatocellular carcinoma, as supported by experimental evaluation and clinical investigation. PMID- 29021691 TI - Photoprotective effects of topical ginseng leaf extract using Ultraflo L against UVB-induced skin damage in hairless mice. AB - BACKGROUND: Abnormal activation of matrix metalloproteinases (MMPs) plays an important role in UV-induced wrinkle formation, which is a major dermatological problem. This formation occurs due to the degeneration of the extracellular matrix (ECM). In this study, we investigated the cutaneous photoprotective effects of Ultraflo L treated ginseng leaf (UTGL) in hairless mice. METHODS: SKH 1 hairless mice (6 weeks of age) were randomly divided into four groups (8 mice/group). UTGL formulation was applied topically to the skin of the mice for 10 weeks. The normal control group received nonvehicle and was not irradiated with UVB. The UV control (UVB) group received nonvehicle and was exposed to gradient-UVB irradiation. The groups (GA) receiving topical application of UTGL formulation were subjected to gradient-UVB irradiation on 0.5 mg/cm2 [GA-low (GA L)] and 1.0 mg/cm2 [(GA-high (GA-H)] of dorsal skin area, respectively. RESULTS: We found that topical treatment with UTGL attenuated UVB-induced epidermal thickness and impairment of skin barrier function. Additionally, UTGL suppressed the expression of MMP-2, -3, and -13 induced by UVB irradiation. Our results show that topical application of UTGL protects the skin against UVB-induced damage in hairless mice and suggest that UTGL can act as a potential agent for preventing and/or treating UVB-induced photoaging. CONCLUSION: UTGL possesses sunscreen properties and may exhibit photochemoprotective activities inside the skin of mice. Therefore, UTGL could be used as a potential therapeutic agent to protect the skin against UVB-induced photoaging. PMID- 29021692 TI - Cytohistological study of the leaf structures of Panax ginseng Meyer and Panax quinquefolius L. AB - BACKGROUND: Both Panax ginseng Meyer and Panax quinquefolius are obligate shade loving plants whose natural habitats are broadleaved forests of Eastern Asia and North America. Panax species are easily damaged by photoinhibition when they are exposed to high temperatures or insufficient shade. In this study, a cytohistological study of the leaf structures of two of the most well-known Panax species was performed to better understand the physiological processes that limit photosynthesis. METHODS: Leaves of ginseng plants grown in soil and hydroponic culture were sectioned for analysis. Leaf structures of both Panax species were observed using a light microscope, scanning electron microscope, and transmission electron microscope. RESULTS: The mesostructure of both P. ginseng and P. quinquefolius frequently had one layer of noncylindrical palisade cells and three or four layers of spongy parenchymal cells. P. quinquefolius contained a similar number of stomata in the abaxial leaf surface but more tightly appressed enlarged grana stacks than P. ginseng contained. The adaxial surface of the epidermis in P. quinquefolius showed cuticle ridges with a pattern similar to that of P. ginseng. CONCLUSION: The anatomical leaf structure of both P. ginseng and P. quinquefolius shows that they are typical shade-loving sciophytes. Slight differences in chloroplast structure suggests that the two different species can be authenticated using transmission electron microscopy images, and light resistant cultivar breeding can be performed via controlling photosynthesis efficiency. PMID- 29021693 TI - A refined Panax ginseng karyotype based on an ultra-high copy 167-bp tandem repeat and ribosomal DNAs. AB - BACKGROUND: Panax ginseng Meyer (Asian ginseng) has a large nuclear genome size of > 3.5 Gbp in haploid genome equivalent of 24 chromosomes. Tandem repeats (TRs) occupy significant portions of the genome in many plants and are often found in specific genomic loci, making them a valuable molecular cytogenetic tool in discriminating chromosomes. In an effort to understand the P. ginseng genome structure, we characterized an ultrahigh copy 167-bp TR (Pg167TR) and explored its chromosomal distribution as well as its utility for chromosome identification. METHODS: Polymerase chain reaction amplicons of Pg167TR were labeled, along with 5S and 45S rDNA amplicons, using a direct nick-translation method. Direct fluorescence in situ hybridization (FISH) was used to analyze the chromosomal distribution of Pg167TR. RESULTS: Recently, we reported a method of karyotyping the 24 chromosome pairs of P. ginseng using rDNA and DAPI (4',6 diamidino-2-phenylindole) bands. Here, a unique distribution of Pg167TR in all 24 P. ginseng chromosomes was observed, allowing easy identification of individual homologous chromosomes. Additionally, direct labeling of 5S and 45S rDNA probes allowed the identification of two additional 5S rDNA loci not previously reported, enabling the refinement of the P. ginseng karyotype. CONCLUSION: Identification of individual P. ginseng chromosomes was achieved using Pg167TR FISH. Chromosome identification is important in understanding the P. ginseng genome structure, and our method will be useful for future integration of genetic linkage maps and genome scaffold anchoring. Additionally, it is a good tool for comparative studies with related species in efforts to understand the evolution of P. ginseng. PMID- 29021694 TI - Korean Red Ginseng extract induces angiogenesis through activation of glucocorticoid receptor. AB - BACKGROUND: Our previous studies have demonstrated that ginsenoside-Rg1 can promote angiogenesis in vitro and in vivo through activation of the glucocorticoid receptor (GR). Furthermore, microRNA (miRNA) expression profiling has shown that Rg1 can modulate the expression of a subset of miRNAs to induce angiogenesis. Moreover, Rb1 was shown to be antiangiogenic through activation of a different pathway. These studies highlight the important functions of miRNAs on ginseng-regulated physiological processes. The aim of this study was to determine the angiogenic properties of Korean Red Ginseng extract (KGE). METHODS AND RESULTS: Combining in vitro and in vivo data, KGE at 500 MUg/mL was found to induce angiogenesis. According to the miRNA sequencing, 484 differentially expressed miRNAs were found to be affected by KGE. Among them, angiogenic-related miRNAs; miR-15b, -23a, -214, and -377 were suppressed by KGE. Meanwhile, their corresponding angiogenic proteins were stimulated, including vascular endothelial growth factor, vascular endothelial growth factor receptor-2, endothelial nitric oxide synthase, and MET transmembrane tyrosine kinase. The miRNAs-regulated signaling pathways of KGE were then found by Cignal 45-Pathway Reporter Array, proving that KGE could activate GR. CONCLUSION: KGE was found capable of inducing angiogenesis both in vivo and in vitro models through activating GR. This study provides a valuable insight into the angiogenic mechanisms depicted by KGE in relation to specific miRNAs. PMID- 29021695 TI - Chemical and bioactive comparison of flowers of Panax ginseng Meyer, Panax quinquefolius L., and Panax notoginseng Burk. AB - BACKGROUND: Although flowers of Panax ginseng Meyer (FPG), Panax quinquefolius L. (FPQ), and Panax notoginseng Burk. (FPN) have been historically used as both medicine and food, each is used differently in practice. METHODS: To investigate the connection between components and enhancing immunity activity of FPG, FPQ, and FPN, a method based on a rapid LC coupled with quadrupole time-of-flight MS and immunomodulatory activity study evaluated by a carbon clearance test were combined. RESULTS: According to quantitative results, the ratio of the total content of protopanaxatiol-type ginsenosides to protopanaxadiol-type ginsenosides in FPN was 0, but ranged from 1.10 to 1.32 and from 0.23 to 0.35 in FPG and FPQ, respectively. The ratio of the total content of neutral ginsenosides to the corresponding malonyl-ginsenosides in FPN (5.52 +/- 1.33%) was higher than FPG (3.2 +/- 0.64%) and FPQ (2.39 +/- 0.57%). The colorimetric analysis showed the content of total ginsenosides in FPQ, FPG, and FPN to be 13.75 +/- 0.60%, 17.45 +/- 0.42%, and 12.45 +/- 1.77%, respectively. The carbon clearance assay indicated that the phagocytic activity of FPG and FPQ was higher than that of FPN. A clear discrimination among FPG, FPQ, and FPN was observed in the principal component analysis score plots. Seven compounds were confirmed to contribute strongly by loading plots, which may be the cause of differences in efficacy. CONCLUSION: This study provides basic information about the chemical and bioactive comparison of FPG, FPQ, and FPN, indicating that protopanaxtriol-type ginsenosides and malonyl-ginsenosides may play a key role in their enhancing immunity properties. PMID- 29021696 TI - Antiviral activity of 20(R)-ginsenoside Rh2 against murine gammaherpesvirus. AB - BACKGROUND: Ginsenosides are the major components of Panax ginseng Meyer, an herbal medicine used for the treatment of various diseases. Different ginsenosides contribute to the biological properties of ginseng, such as antimicrobial, anticancer, and immunomodulatory properties. In this study, we investigated the antiviral effects of 15 ginsenosides and compound K on gammaherpesvirus. METHODS: The antiviral activity of ginsenosides was examined using the plaque-forming assay and by analyzing the expression of the lytic gene. RESULTS: 20(R)-Ginsenoside Rh2 inhibited the replication and proliferation of murine gammaherpesvirus 68 (MHV-68), and its half-maximal inhibitory concentration (IC50) against MHV-68 was estimated to be 2.77 MUM. In addition, 20(R)-ginsenoside Rh2 inhibited 12-O-tetradecanoylphorbol-13-acetate (TPA) induced lytic replication of human gammaherpesvirus in the Kaposi's sarcoma associated herpesvirus (KSHV)-positive cell line BC3. CONCLUSION: Our results indicate that 20(R)-ginsenoside Rh2 can inhibit the replication of mouse and human gammaherpesviruses, and thus, has the potential to treat gammaherpesvirus infection. PMID- 29021697 TI - Chronic saponin treatment attenuates damage to the pancreas in chronic alcohol treated diabetic rats. AB - BACKGROUND: Chronic heavy alcohol consumption may raise the risk of developing type 2 diabetes mellitus. Saponins inhibit apoptosis of pancreatic islet cells and reduce lipid parameters. The present study was designed to investigate the effect of saponin on chronic ethanol-treated diabetic rats. METHODS: Long-Evans Tokushima Fatty (LETO) and Otsuka Long-Evans Tokushima Fatty (OLETF) rats were pair-fed a Lieber-DeCarli diet with and without 5% ethanol for 12 wks. Two weeks after starting the pair-feeding with the Lieber-DeCarli diet, intraperitoneal injection of saponin was performed for 10 wks. To perform the experiments, rats were divided as follows: LETO-Control (LC), LETO-Ethanol (LE), LETO-Ethanol Saponin (LES), OLETF-Control (OC), OLETF-Ethanol (OE), and OLETF-Ethanol-Saponin (OES). RESULTS: The weights of epididymal and mesenteric fat tissue in LES and OES rats were the lightest from among the LETO and OLETF groups, respectively. The secretion of alanine aminotransferase and cholesterol in OES rats decreased significantly compared to their secretion in OC and OE rats, respectively. The islets of the pancreas in LE and OE rats showed clean, unclear, and smaller morphology compared to those of LC, LES, OC, and OES rats. In addition, the expression of insulin in the islets of the pancreas in LC, LES, OC, and OES rats was higher than in LE and OE rats. CONCLUSION: Saponin may not only be helpful in alleviating the rapid progress of diabetes due to chronic alcohol consumption in diabetic patients, but may also show potential as an antidiabetic drug candidate for diabetic patients who chronically consume alcohol. PMID- 29021698 TI - Nonsaponin fractions of Korean Red Ginseng extracts prime activation of NLRP3 inflammasome. AB - BACKGROUND: Korean Red Ginseng extracts (RGE) have been suggested as effective immune modulators, and we reported that ginsenosides possess anti-inflammasome properties. However, the properties of nonsaponin components of RGE have not been well studied. METHODS: To assess the roles of nonsaponin fractions (NS) in NLRP3 inflammasome activation, we treated murine macrophages with or without first or second inflammasome activation signals with RGE, NS, or saponin fractions (SF). The first signal was nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kappaB)-mediated transcription of pro-interleukin (IL)-1beta and NLRP3 while the second signal triggered assembly of inflammasome components, leading to IL-1beta maturation. In addition, we examined the role of NS in IL-6 production and IL-1beta maturation in mice. RESULTS: NS induced IL-1beta and NLRP3 transcription via toll-like receptor 4 signaling, whereas SF blocked expression. During the second signal, SF attenuated NLRP3 inflammasome activation while NS did not. Further, NS-injected mice presented increased IL-1beta maturation and IL 6 production. CONCLUSION: SF and NS of RGE play differential roles in the NLRP3 inflammasome activation. Hence, RGE can be suggested as an NLRP3 inflammasome modulator. PMID- 29021699 TI - Evaluation of ginsenoside bioconversion of lactic acid bacteria isolated from kimchi. AB - BACKGROUND: Panax ginseng is a physiologically active plant widely used in traditional medicine that is characterized by the presence of ginsenosides. Rb1, a major ginsenoside, is used as the starting material for producing ginsenoside derivatives with enhanced pharmaceutical potentials through chemical, enzymatic, or microbial transformation. METHODS: To investigate the bioconversion of ginsenoside Rb1, we prepared kimchi originated bacterial strains Leuconostoc mensenteroides WiKim19, Pediococcus pentosaceus WiKim20, Lactobacillus brevis WiKim47, Leuconostoc lactis WiKim48, and Lactobacillus sakei WiKim49 and analyzed bioconversion products using LC-MS/MS mass spectrometer. RESULTS: L. mesenteroides WiKim19 and Pediococcus pentosaceus WiKim20 converted ginsenoside Rb1 into the ginsenoside Rg3 approximately five times more than Lactobacillus brevis WiKim47, Leuconostoc lactis WiKim48, and Lactobacillus sakei WiKim49. L mesenteroides WIKim19 showed positive correlation with beta-glucosidase activity and higher transformation ability of ginsenoside Rb1 into Rg3 than the other strains whereas, P. pentosaceus WiKim20 showed an elevated production of Rb3 even with lack of beta-glucosidase activity but have the highest acidity among the five lactic acid bacteria (LAB). CONCLUSION: Ginsenoside Rg5 concentration of five LABs have ranged from ~2.6 MUg/mL to 6.5 MUg/mL and increased in accordance with the incubation periods. Our results indicate that the enzymatic activity along with acidic condition contribute to the production of minor ginsenoside from lactic acid bacteria. PMID- 29021700 TI - Ginsenoside Rg12, a new dammarane-type triterpene saponin from Panax ginseng root. AB - BACKGROUND: Panax ginseng has been used as Korean medicine for various diseases. It has antioxidant, hypotensive, sedative, analgesic, and endocrine activities. Dammarane-type triterpenes from the plant have various beneficial effects. METHODS: A dammarane-type triterpene saponin was isolated from P. ginseng root through chromatography such as repeated column chromatography and medium pressure liquid chromatography. RESULTS AND CONCLUSION: New dammarane-type triterpene saponin was isolated for the first time from nature. The structure was elucidated as ginsenoside Rg12 (1) based on spectral data. There may be good materials from P. ginseng for the development of industrial applications such as nutraceutical, pharmaceutical, and cosmeceutical purposes. PMID- 29021701 TI - Using reverse docking to identify potential targets for ginsenosides. AB - BACKGROUND: Ginsenosides are the main ingredients of ginseng, which, in traditional Eastern medicine, has been claimed to have therapeutic values for many diseases. In order to verify the effects of ginseng that have been empirically observed, we utilized the reverse docking method to screen for target proteins that are linked to specific diseases. METHODS: We constructed a target protein database including 1,078 proteins associated with various kinds of diseases, based on the Potential Drug Target Database, with an added list of kinase proteins. We screened 26 kinds of ginsenosides of this target protein database using docking. RESULTS: We found four potential target proteins for ginsenosides, based on docking scores. Implications of these "hit" targets are discussed. From this screening, we also found four targets linked to possible side effects and toxicities, based on docking scores. CONCLUSION: Our method and results can be helpful for finding new targets and developing new drugs from natural products. PMID- 29021702 TI - Biotransformation of Panax ginseng extract by rat intestinal microflora: identification and quantification of metabolites using liquid chromatography tandem mass spectrometry. AB - BACKGROUND: In general, after Panax ginseng is administered orally, intestinal microbes play a crucial role in its degradation and metabolization process. Studies on the metabolism of P. ginseng by microflora are important for obtaining a better understanding of their biological effects. METHODS: In vitro biotransformation of P. ginseng extract by rat intestinal microflora was investigated at 37 degrees C for 24 h, and the simultaneous determination of the metabolites and metabolic profile of P. ginseng saponins by rat intestinal microflora was achieved using LC-MS/MS. RESULTS: A total of seven ginsenosides were detected in the P. ginseng extract, including ginsenosides Rg1, Re, Rf, Rb1, Rc, Rb2, and Rd. In the transformed P. ginseng samples, considerable amounts of deglycosylated metabolite compound K and Rh1 were detected. In addition, minimal amounts of deglycosylated metabolites (ginsenosides Rg2, F1, F2, Rg3, and protopanaxatriol-type ginsenosides) and untransformed ginsenosides Re, Rg1, and Rd were detected at 24 h. The results indicated that the primary metabolites are compound K and Rh1, and the protopanaxadiol-type ginsenosides were more easily metabolized than protopanaxatriol-type ginsenosides. CONCLUSION: This is the first report of the identification and quantification of the metabolism and metabolic profile of P. ginseng extract in rat intestinal microflora using LC MS/MS. The current study provided new insights for studying the metabolism and active metabolites of P. ginseng. PMID- 29021703 TI - Ginsenoside Rg3-enriched red ginseng extract inhibits platelet activation and in vivo thrombus formation. AB - BACKGROUND: Korean Red Ginseng has been used for several decades to treat many diseases, enhancing both immunity and physical strength. Previous studies have documented the therapeutic effects of ginseng, including its anticancer, antiaging, and anti-inflammatory activities. These activities are mediated by ginsenosides present in the ginseng plant. Ginsenoside Rg3, an effective compound from red ginseng, has been shown to have antiplatelet activity in addition to its anticancer and anti-inflammatory activities. Platelets are important for both primary hemostasis and the repair of the vessels after injury; however, they also play a crucial role in the development of acute coronary diseases. We prepared ginsenoside Rg3-enriched red ginseng extract (Rg3-RGE) to examine its role in platelet physiology. METHODS: To examine the effect of Rg3-RGE on platelet activation in vitro, platelet aggregation, granule secretion, intracellular calcium ([Ca2+]i) mobilization, flow cytometry, and immunoblot analysis were carried out using rat platelets. To examine the effect of Rg3-RGE on platelet activation in vivo, a collagen plus epinephrine-induced acute pulmonary thromboembolism mouse model was used. RESULTS: We found that Rg3-RGE significantly inhibited collagen-induced platelet aggregation and [Ca2+]i mobilization in a dose-dependent manner in addition to reducing ATP release from collagen-stimulated platelets. Furthermore, using immunoblot analysis, we found that Rg3-RGE markedly suppressed mitogen-activated protein kinase phosphorylation (i.e., extracellular stimuli-responsive kinase, Jun N-terminal kinase, p38) as well as the PI3K (phosphatidylinositol 3 kinase)/Akt pathway. Moreover, Rg3-RGE effectively reduced collagen plus epinephrine-induced mortality in mice. CONCLUSION: These data suggest that ginsenoside Rg3-RGE could be potentially be used as an antiplatelet therapeutic agent against platelet-mediated cardiovascular disorders. PMID- 29021704 TI - The effect of red ginseng and ginseng leaves on the substance and energy metabolism in hypothyroidism rats. AB - BACKGROUND: Recent studies have revealed that the properties Traditional Chinese Medicine is mostly associated with are substance and energy metabolism. Our study aimed to compare the effect of red ginseng (RG) (warm property) and ginseng leaves (GL; cold property) on the substance and energy metabolism of rats with hypothyroidism. MATERIALS AND METHODS: Rats were administered propylthiouracil intraperitoneally for 20 d to cause hypothyroidism. The reference group was orally administered Aconiti Lateralis Radix Praeparaia [FZ (Fuzi in Chinese)], while both the RG and GL groups were orally administrated crude drugs. The rectal, tail, toe, and axilla temperature of the rats were assayed every 3 d. Oxygen consumption, carbon dioxide production, heat production, and energy expenditure were measured via TSE phenoMaster/LabMaster animal monitoring system. Adenosine monophosphate-activated protein kinase, Na+-K+-ATPase, fumarase, pyruvic acid and cyclic adenosine monophosphate/cyclic guanosine monophosphate were determined. RESULTS: The lower levels of triiodothyronine, tetraiodothyronine, and thyrotropin-releasing hormone and the higher level of thyroid stimulating hormone revealed the successful establishment of a hypothyroidism model. Oxygen consumption, carbon dioxide production, heat production, and energy expenditure in the FZ and RG groups were obviously increased. The activity of Na+-K+-ATPase and fumarase in the FZ and RG groups was significantly increased. The cyclic adenosine monophosphate/cyclic guanosine monophosphate level in the FZ and RG groups was increased, while the GL group showed the opposite. CONCLUSION: Our research provides a new way to explore the efficiency of Chinese medicine on the basis of the relationship between drug property and effects on substance and energy metabolism. PMID- 29021705 TI - Global analysis of ginsenoside Rg1 protective effects in beta-amyloid-treated neuronal cells. AB - BACKGROUND: A number of reports have described the protective effects of ginsenoside Rg1 (Rg1) in Alzheimer's disease (AD). However, the protective mechanisms of Rg1 in AD remain elusive. METHODS: To investigate the potential mechanisms of Rg1 in beta-amyloid peptide-treated SH-SY5Y cells, a comparative proteomic analysis was performed using stable isotope labeling with amino acids in cell culture combined with nano-LC-MS/MS. RESULTS: We identified a total of 1,149 proteins in three independent experiments. Forty-nine proteins were significantly altered by Rg1 after exposure of the cells to beta-amyloid peptides. The protein interaction network analysis showed that these altered proteins were clustered in ribosomal proteins, mitochondria, the actin cytoskeleton, and splicing proteins. Among these proteins, mitochondrial proteins containing HSD17B10, AARS2, TOMM40, VDAC1, COX5A, and NDUFA4 were associated with mitochondrial dysfunction in the pathogenesis of AD. CONCLUSION: Our results suggest that mitochondrial proteins may be related to the protective mechanisms of Rg1 in AD. PMID- 29021706 TI - Effect of hydrothermal processing on ginseng extract. AB - BACKGROUND: Panax ginseng Meyer is cultivated because of its medicinal effects on the immune system, blood pressure, and cancer. Major ginsenosides in fresh ginseng are converted to minor ginsenosides by structural changes such as hydrolysis and dehydration. The transformed ginsenosides are generally more bioavailable and bioactive than the primary ginsenosides. Therefore, in this study, hydrothermal processing was applied to ginseng preparation to increase the yields of the transformed ginsenosides, such as 20(S)-Rg3, Rk1, and Rg5, and enhance antioxidant activities in an effective way. METHODS: Ginseng extract was hydrothermally processed using batch reactors at 100-160 degrees C with differing reaction times. Quantitative analysis of the ginsenoside yields was performed using HPLC, and the antioxidant activity was qualitatively analyzed by evaluating 2,2'-azino-bis radical cation scavenging, 2,2-diphenyl-1-picrylhydrazyl radical scavenging, and phenolic antioxidants. Red ginseng and sun ginseng were prepared by conventional steaming as the control group. RESULTS: Unlike steaming, the hydrothermal process was performed under homogeneous conditions. Chemical reaction, heat transfer, and mass transfer are generally more efficient in homogeneous reactions. Therefore, maximum yields for the hydrothermal process were 2.5-25 times higher than those for steaming, and the antioxidant activities showed 1.6-4-fold increases for the hydrothermal process. Moreover, the reaction time was decreased from 3 h to 15-35 min using hydrothermal processing. CONCLUSION: Therefore, hydrothermal processing offers significant improvements over the conventional steaming process. In particular, at temperatures over 140 degrees C, high yields of the transformed ginsenosides and increased antioxidant activities were obtained in tens of minutes. PMID- 29021707 TI - Pectinase-treated Panax ginseng protects against chronic intermittent heat stress induced testicular damage by modulating hormonal and spermatogenesis-related molecular expression in rats. AB - BACKGROUND: Elevated testicular temperature disrupts spermatogenesis and causes infertility. In the present study, the protective effect of enzymatically biotransformed Panax ginseng Meyer by pectinase (GINST) against chronic intermittent heat stress-induced testicular damage in rats was investigated. METHODS: Male Sprague-Dawley rats (4 wk old, 60-70 g) were divided into four groups: normal control (NC), heat-stress control (HC), heat-stress plus GINST-100 mg/kg (HG100), and heat-stress plus GINST-200 mg/kg (HG200) treatment groups. Each dose of GINST (100 mg/kg and 200 mg/kg) was mixed separately with a regular pellet diet and was administered orally for 24 wk. For inducing heat stress, rats in the NC group were maintained at 25 degrees C, whereas rats in the HC, HG100, and HG200 groups were exposed to 32 +/- 1 degrees C for 2 h daily for 6 mo. At week 25, the testes and serum from each animal were analyzed for various parameters. RESULTS: Significant (p < 0.01) changes in the sperm kinematic values and blood chemistry panels were observed in the HC group. Furthermore, spermatogenesis-related molecules, sex hormone receptors, and selected antioxidant enzyme expression levels were also altered in the HC group compared to those in the NC group. GINST (HS100 and HS200) administration significantly (p < 0.05) restored these changes when compared with the HC group. For most of the parameters tested, the HG200 group exhibited potent effects compared with those exhibited by the HG100 group. CONCLUSION: GINST may be categorized as an important medicinal herb and a potential therapeutic for the treatment of male subfertility or infertility caused by hyperthermia. PMID- 29021709 TI - Subacute oral toxicity and bacterial mutagenicity study of Korean Red Ginseng oil. AB - BACKGROUND: Red ginseng oil (RGO) is produced by supercritical CO2 extraction of secondary products derived from Korean Red Ginseng extract. As the use of RGO has increased, product safety concerns have become more important. METHODS: In the present study, the subacute oral toxicity and bacterial reverse mutagenicity of RGO were evaluated. Sprague-Dawley rats were orally administered with RGO for 28 d by gavage. Daily RGO dose concentrations were 0 mg/kg body weight (bw), 500 mg/kg bw, 1,000 mg/kg bw, or 2,000 mg/kg bw per day. Bacterial reverse mutation tests included five bacterial strains (Escherichia coli WP2 and Salmonella typhimurium TA98, TA100, TA1535, and TA1537), which were used in the presence or absence of metabolic activation. The plated incorporation method for mutation test was used with RGO concentrations ranging from 312.5 MUg to 5,000 MUg per plate. RESULTS: The subacute oral toxicity test results did not reveal any marked changes in clinical characteristics. There were no toxicological changes related to RGO administration in hematological and serum biochemical characteristics in either control or treatment animals. Furthermore, no gross or histopathological changes related to RGO treatment were observed. The bacterial reverse mutation test results did not reveal, at any RGO concentration level and in all bacterial strains, any increase in the number of revertant colonies in the RGO treatment group compared to that in the negative control group. CONCLUSION: The no-observed adverse-effect level of RGO is greater than 2,000 mg/kg bw and RGO did not induce genotoxicity related to bacterial reverse mutations. PMID- 29021708 TI - Effects of ginseng on stress-related depression, anxiety, and the hypothalamic pituitary-adrenal axis. AB - Ginseng effectively regulates the immune response and the hormonal changes due to stress, thus maintaining homeostasis. In addition to suppressing the occurrence of psychological diseases such as anxiety and depression, ginseng also prevents stress-associated physiological diseases. Recent findings have revealed that ginseng is involved in adjusting the hypothalamic-pituitary-adrenal axis and controlling hormones, thus producing beneficial effects on the heart and brain, and in cases of bone diseases, as well as alleviating erectile dysfunction. Recent studies have highlighted the potential use of ginseng in the prevention and treatment of chronic inflammatory diseases such as diabetes, rheumatoid arthritis, and allergic asthma. However, the mechanism underlying the effects of ginseng on these stress-related diseases has not been completely established. In this review, we focus on the disease pathways caused by stress in order to determine how ginseng acts to improve health. Central to our discussion is how this effective and stable therapeutic agent alleviates the anxiety and depression caused by stress and ameliorates inflammatory diseases. PMID- 29021710 TI - Melanogenesis inhibition activity of floralginsenoside A from Panax ginseng berry. AB - BACKGROUND: Panax ginseng is a traditional herb used for medicinal purposes in eastern Asia. P. ginseng contains various ginsenosides with pharmacological effects. In this study, floralginsenoside A (FGA), ginsenoside Rd (GRD), and ginsenoside Re (GRE) were purified from P. ginseng berry. METHODS: Chemical structures of FGA, GRD, and GRE were determined based on spectroscopic methods, including fast atom bombardment mass spectroscopy, ID-nuclear magnetic resonance, and infrared spectroscopy. Inhibitory activities of these compounds on melanogenesis were studied by measuring the expression of protein and melanin content in the melan-a cell line. This inhibitory activity was confirmed by observing pigmentation and tyrosinase activities of zebrafish. RESULTS: GRD, GRE, and FGA were not cytotoxic at concentrations less than 20MUM, 80MUM, and 160MUM in melan-a cells, respectively. GRD, GRE, and FGA inhibited melanin biosynthesis in melan-a cells by 15.2%, 22.9%, and 23.9% at 20MUM, 80MUM, and 160MUM, respectively. FGA was observed to display the most potent inhibitory effect. In addition, FGA decreased microphthalmia-associated transcription factor protein expression in a dose-dependent manner. Moreover, FGA induced extracellular signal regulated kinase phosphorylation level in melan-a cells. In addition, melanin pigment content and tyrosinase activity in zebrafish treated with FGA at160MUM were reduced. CONCLUSION: FGA showed the most potent inhibition of melanogenesis in both in vitro and in vivo studies. This study suggests that FGA purified from P. ginseng may be an effective melanogenesis inhibitor. PMID- 29021711 TI - Ginsenoside Rg1 from Panax ginseng enhances myoblast differentiation and myotube growth. AB - BACKGROUND: Ginsenoside Rg1 belongs to protopanaxatriol-type ginsenosides and has diverse pharmacological activities. In this report, we investigated whether Rg1 could upregulate muscular stem cell differentiation and muscle growth. METHODS: C2C12 myoblasts, MyoD-transfected 10T1/2 embryonic fibroblasts, and HEK293T cells were treated with Rg1 and differentiated for 2 d, subjected to immunoblotting, immunocytochemistry, or immunoprecipitation. RESULTS: Rg1 activated promyogenic kinases, p38MAPK (mitogen-activated protein kinase) and Akt signaling, that in turn promote the heterodimerization with MyoD and E proteins, resulting in enhancing myogenic differentiation. Through the activation of Akt/mammalian target of rapamycin pathway, Rg1 induced myotube growth and prevented dexamethasone-induced myotube atrophy. Furthermore, Rg1 increased MyoD-dependent myogenic conversion of fibroblast. CONCLUSION: Rg1 upregulates promyogenic kinases, especially Akt, resulting in improvement of myoblast differentiation and myotube growth. PMID- 29021712 TI - Chronic dietary ginseng extract administration ameliorates antioxidant and cholinergic systems in the brains of aged mice. AB - BACKGROUND: Black ginseng has a more potent biological activity than non-steamed ginseng. We investigated the effects of long-term intake of dietary black ginseng extract (BG) on antioxidant activity in aged mice. We also compared the effects of BG on cognitive deficits with those of white ginseng extract (WG) and red ginseng extract (RG). METHODS: Ten-month-old mice were fed an AIN-93G-based diet containing 10 g/kg (low dose, L) or 30 g/kg (high dose, H) WG powder, RG powder, or BG powder for 24 wk. We measured serum lipids, the activities of antioxidant enzymes, and malondialdehyde levels. Additionally, the protein expression levels of choline acetyltransferase and vesicular acetylcholine transporter, which are presynaptic cholinergic markers in the cortex and hippocampus of the brain, were measured by western blotting. RESULTS: Triglyceride levels were reduced in all the extract-treated mice, except those in the LBG group. High-density lipoprotein cholesterol levels in the HBG group were higher than those in the control group. Total cholesterol levels were reduced in the LBG group. Additionally, glucose levels in the HBG group were significantly reduced by 41.2%. There were lower levels of malondialdehyde in the LBG group than in the control group. Furthermore, glutathione reductase activity increased in the HWG group and the HRG group. The protein expression levels of choline acetyltransferase and vesicular acetylcholine transporter significantly increased in all the ginseng treated groups. CONCLUSION: The results suggest that supplementation with the tested ginseng extracts may suppress the cognitive decline associated with aging, via regulation of the cholinergic and antioxidant defense systems. PMID- 29021713 TI - Epidemiology of bronchiolitis: a description of emergency department visits and hospitalizations in Puerto Rico, 2010-2014. AB - BACKGROUND: Little is known about the epidemiology of bronchiolitis as a clinical diagnosis and its impact on emergency department visits and hospitalizations in tropical and semitropical regions. We described the epidemiology of bronchiolitis emergency visits and hospitalizations, its temporal trend and geographic distribution in Puerto Rico between 2010 and 2014. METHODS: We performed a retrospective descriptive analysis of a representative sample of privately insured children with bronchiolitis from January 2010 to December 2014. Data was provided by the largest private health insurer in Puerto Rico and identified children < 24 months of age with bronchiolitis by International Classification of Diseases, Ninth Revision code 466, 466.11, and 466.19. Chi-square and one-way ANOVA compared sex, age, diagnosis, and severity across the years. Joinpoint Poisson regression analysis evaluated the temporal trend distribution of bronchiolitis hospitalizations per calendar year. A P value less than 0.05 was statistically significant. RESULTS: During the study period, the annual proportion of emergency department visits and hospitalizations due to bronchiolitis increased from 3 to 5%, and 26 to 38%, respectively. The annual incidence rate of hospitalizations was 3.2 per 1000 privately insured children < 24 months. Non-RSV bronchiolitis was the most frequent diagnosis (51%). Hospitalizations occurred year-round, but increased significantly from August through December. Most children hospitalized resided in the metropolitan San Juan (35%) and surrounding urban areas. Total hospital charges decreased from $3.78 to $3.74 million, with an average cost per hospitalization of $4320.12 (11.3% increase; P = 0.0015). CONCLUSIONS: This is the first study that evaluates the epidemiological characteristics of bronchiolitis in a primarily Hispanic population, living in a tropical country, and using data from a privately insured population. We found a small but significant increase in proportion of emergency visits and hospitalizations. Temporal trend shows year-round hospitalizations with an earlier seasonal peak and longer duration, consistent with Puerto Rico's seasonal rainfall throughout the study period. Further studies are needed to elucidate whether this epidemiologic pattern can also be seen in publicly insured children and whether Hispanic ethnicity is a risk factor for increased hospitalizations or is related to health disparities in the US healthcare system. PMID- 29021714 TI - Enhancing utility and understanding of evidence based practice through undergraduate nurse education. AB - BACKGROUND: The concept of evidence-based practice is globally relevant in current healthcare climates. However, students and teachers struggle with integrating evidence based practice effectively into a curriculum. This has implications for nurse education and in particular the way in which research is presented and delivered to students. A new undergraduate Evidence Based Practice module (Evidence Based Nursing 1) was developed in a large University within the United Kingdom. It commenced in October 2014 running in year one of a 3 year undergraduate nursing programme. This study sought to formally evaluate attitudes and beliefs, knowledge level and utilization of evidence based practice though using two validated questionnaires: Evidence Based Practice Beliefs Scale(c) and Evidence Based Practice Implementation Scale(c). METHOD: This was a pilot study using quantitative pre and post-test design. Anonymised data was collected from Year 1 undergraduate student nurses in the September 2014 intake (n = 311) at two time points. Time 1: pre-module in September 2014; and Time 2: post -module in August 2015. All data was collected via Survey Monkey. RESULTS: Results demonstrate that the educational initiative positively impacted on both the beliefs and implementation of evidence based practice. Analysis highlighted statistically significant changes (p < 0.05) in both the Evidence Based Practice Beliefs Scale (7/16 categories) and the Evidence Based Practice Implementation Scale (13 / 18 categories). CONCLUSIONS: The significance of integrating evidence based practice into undergraduate nurse education curriculum cannot be underestimated if evidence based practice and its positive impact of patient care are to be appreciated in healthcare settings internationally. PMID- 29021715 TI - The clinicopathological significance of UBE2C in breast cancer: a study based on immunohistochemistry, microarray and RNA-sequencing data. AB - BACKGROUND: Ubiquitin-conjugating enzyme E2C (UBE2C) has been previously reported to correlate with the malignant progression of various human cancers, however, the exact molecular function of UBE2C in breast carcinoma (BRCA) remained elusive. We aimed to investigate UBE2C expression in BRCA and its clinical significance. METHODS: The expression of UBE2C in 209 BRCA tissue samples and 53 adjacent normal tissue samples was detected using immunohistochemistry. The clinical role of UBE2C was analyzed. Public databases including the human protein atlas and Oncomine were used to assess UBE2C expression in BRCA. Moreover, the cancer genome atlas (TCGA) database was employed to investigate the prognostic value of UBE2C in BRCA. RESULTS: The positive expression rate of UBE2C in BRCA was 70.8% (148/209), and UBE2C expression in the adjacent breast tissue was negative. The expression of UBE2C was positively correlated with tumor size (r = 0.32, P < 0.001), histological grade (r = 0.237, P = 0.001), clinical stage (r = 0.198, P = 0.004), lymph node metastasis (r = 0.155, P = 0.026), HER2 expression level (r = 0.356, P < 0.001), Ki-67 expression level (r = 0.504, P < 0.001), and P53 expression level (r = 0.32, P = 0.001). Negative correlations were found between UBE2C expression and the ER (r = - 0.403, P < 0.001) and PR (r = - 0.468, P < 0.001) status. UBE2C gene expression data from the public databases all proved that UBE2C was overexpressed in BRCA. According to the TCGA data analysis, a higher positive expression of UBE2C was associated with worse survival of BRCA patients (P = 0.0428), and data from cBioPortal indicated that 11% of all sequenced BRCA patients possessed a gene alteration of UBE2C, predominately gene amplification and mRNA regulation. CONCLUSION: Ubiquitin-conjugating enzyme E2C might pose an oncogenic effect on the progression of BRCA. PMID- 29021716 TI - Continuous Curvilinear Capsulorhexis Training and Non-Rhexis Related Vitreous Loss: The Specificity of Virtual Reality Simulator Surgical Training (An American Ophthalmological Society Thesis). AB - PURPOSE: To assess the specificity of simulation-based virtual reality ophthalmic cataract surgery training on the Eyesi ophthalmic virtual reality surgical simulator, and test the hypothesis that microsurgical motor learning is highly specific. METHODS: Retrospective educational interventional case series. The rates of vitreous loss and retained lens material, and vitreous loss and retained lens material associated with an errant continuous curvilinear capsulorhexis (CCC) were assessed among 1037 consecutive cataract surgeries performed during four consecutive academic years at a teaching hospital. The data were grouped by Eyesi use and capsulorhexis intensive training curriculum (CITC) completion. The main intervention was the completion of the CITC on the Eyesi. RESULTS: In the Eyesi simulator experience-based stratification, the vitreous loss rate was similar in each group (chi square p=0.95) and was not preceded by an errant CCC in 86.2% for "CITC done at least once", 57.1% for "CITC not done, but some Eyesi use", and 48.9% for "none" training groups (p=4*10-5). Retained lens material overall and occurring among the errant CCC cases was similar among training groups (p=0.82 and p=0.71, respectively). CONCLUSIONS: Eyesi capsulorhexis training was not associated with lower vitreous loss rates overall. However, non errant CCC associated vitreous loss was higher among those who underwent Eyesi capsulorhexis training. Training focused on the CCC portion of cataract surgery may not reduce vitreous loss unassociated with an errant CCC. It is likely that surgical training is highly specific to the task being trained. Residents may need to be trained for all surgical steps with adequate intensity to minimize overall complication rates. PMID- 29021719 TI - ? AB - The frequency of work-related electrical injuries has dropped but their characteristics remain unknown in our country. This survey aimed to describe the work-related electrical injuries that occurred in Yaounde during the period 2005 2014. The study was carried out in Yaounde-based central level hospitals from February 1st, 2015 to May 10th, 2015. Data from the files of the victims of these accidents were collated and analyzed. Socio-demographic, professional and epidemiological data were described and results were presented in descriptive mode. The sample comprised 25 males (83.3%) and 5 females (16.7%). The mean age was 28+/-8.3 years. Three out of four victims were working in the informal sector. Accidents were caused by low voltage current (56.7%). The victims were usually electricians and electrical workers (24%). Accidents occurred at various locations, such as in workshops and in the yard and at different times of the day. We recommend that specific training sessions targeting these workers of the informal sector be organized in order to prevent these dangerous accidents. PMID- 29021718 TI - Epidemiology and outcome of 2,590 burned patients in Northwest Iran. AB - Burns are calamities with considerable morbidity and mortality rates. We attempted to examine the epidemiology of burns in Zanjan city, in northwest Iran, by a systematic study of existing information. The medical files of 2,590 thermal burn patients treated in our hospital in Zanjan city, Iran, from December 2010 to November 2016 were studied. Patient information, including age, sex, burn degree, season, cause of burn, hospital stay and treatment results were analyzed. About 65% of the patients were male (n=1691). Most burns (92.8%) were less than 30% total body surface area. Mean age and hospital stay were 25.4 years old and 9.1 days, respectively. The most common causes of burn were hot liquids, gas explosion and fire, respectively. Except for self-immolation, which was more common among men, there was no significant relationship between cause of burn and the studied variables. The six-year mortality rate was 2.9%, and was more common in the years 2011 to 2013. In addition, distribution of causes of burn had a significant trend (variation). Fire burn had a decreasing trend and gas and chemical burn had increasing trends in this period. In northwest Iran the causes of burn changed over the six years. Chemical burns, gas explosion burns and burn mortality increased. Some of these results were due to economic and pharmaceutical sanctions in Iran. Because of Iran's industrial development, it is recommended that preventive measures for chemical, gas and electrical burns be conducted. PMID- 29021717 TI - Enhanced Detection of Sub-Retinal Pigment Epithelial Cell Layer Deposits in Human and Murine Tissue: Imaging Zinc as a Biomarker for Age-Related Macular Degeneration (An American Ophthalmological Society Thesis). AB - PURPOSE: Understanding the apparent paradoxical role of zinc in the pathogenesis and prevention of age-related macular degeneration (AMD) has been limited by the lack of animal models for its detection in sub-retinal epithelial deposits (drusen), a definitive early hallmark of AMD. In-vitro studies using Zinpyr-1 showed drusen contained high levels of zinc, but the probe was not suitable for in-vivo studies. This study compares Zinpyr-1 to ZPP1, a new fluorescein-based probe for zinc, to assess the potential of ZPP1 for in-vivo detection of zinc in drusen. METHODS: Flat mounts of human sub-RPE tissue using the probes were analyzed by fluorescence and confocal microscopy. Flat mounts of sub-RPE tissue from mice deficient in superoxide dismutase isoform-1 (CuZn-SOD-KO) or isoform-2 (Mn-SOD-RPE-KO) were analyzed with sub-RPE deposits confirmed by histology. RESULTS: Drusen are detected in greater numbers and intensity with ZPP1 compared to Zinpyr-1. Using ZPP1, drusen was detected in a sample from a 46-year old human donor without ocular history, suggesting that ZPP1 might be sensitive enough to detect drusen at an early stage. With CuZn-SOD KO mice, ZPP1 detected sub-RPE deposits at 10 months of age, whereas Zinpyr-1 required 14 months. CONCLUSION: Detection of sub-RPE deposits by ZPP1 was greatly enhanced compared to Zinpyr-1. This enhanced sensitivity will allow for more insightful analysis of zinc in AMD using human specimens and mouse models. This could result in the development of a sensitive in-vivo probe to enhance research on the role zinc in drusen formation and the early clinical diagnosis of AMD. PMID- 29021721 TI - The effect of comorbidities and complications on the mortality of burned patients. AB - The World Health Organization has defined 'elderly' as 65 years or older. Age is a known major prognostic factor after burn injury. The objective of this study is to establish whether epidemiologic differences in the elderly contribute to higher mortality compared to younger patients. Patients admitted to the burn unit between 2011 and 2014 (229 patients) were included: 159 were under 65 years old and 70 (30.6%) were 65 or over. The elderly group had a higher mortality rate, 24.6% versus 8.2% (p=0.002). Patients over 65 presented more pre-existing co morbidities (1.7 +/- 1.1) than patients under 65 (1.1 +/- 1.0), p<0.001, and COPD was significantly associated with higher mortality rate (p=0.014). Patients over and under 65 suffered similar TBSA, 15.7 versus 14.1, p=0.720. Regarding burn depth, deeper burns were significantly more prevalent in the over 65 group (17.1% vs. 5.0%, p=0.003). Patients over 65 developed more complications (0.9 +/- 1.1) than the under 65s (0.5 +/- 0.9), p=0.009, and sepsis was significantly associated with higher mortality rate (p=0.042). Over-65-year-old burn victims have a higher mortality risk than the under 65s. Elderly patients generally have more pre-existing comorbidities and develop more complications during hospital stay, which increase the mortality risk. Apparently, history of COPD or sepsis complication during hospital stay are independent risk factors for death in the elderly group. Although over-65-year-olds presented similar TBSA to the younger patients, the proportion of deep burns was higher, which suggests that burns might be more aggressive in the elderly. PMID- 29021722 TI - Bacterial and antimicrobial susceptibility profile and the prevalence of sepsis among burn patients at the burn unit of Cipto Mangunkusumo Hospital. AB - Infection is a major cause of mortality and morbidity among burn patients. An effective measure to reduce infection is routine monitoring of bacterial infection and antimicrobial susceptibility patterns at the burn unit. This will help to create a burn centre-specific empirical antibiotic therapy protocol. A retrospective, descriptive study was conducted at the Cipto Mangunkusumo Hospital (RSCM) Burn Unit between September-November 2016. Data regarding bacterial culture isolates, antimicrobial susceptibility spectrum, and the number of burn patients diagnosed with sepsis were collected. There were 36 patients with positive bacterial cultures, with the isolates changing continuously between Klebsiella pneumonia (17%), Pseudomonas Aeruginosa (12%) and Acinetobacter baumannii (11%). High resistance was found for 10 antimicrobials, particularly cephalosporins. The three bacteria were only sensitive to carbapenem, aminoglycosides and tigecycline. Fourteen patients were diagnosed with sepsis (38.9%), 10 died. Two major sepsis-causing bacteria were P. aeruginosa (33.3%) and K. pneumoniae (28.9%). Bacterial isolates in our setting changed every month. Almost all bacterial isolates are multi-drug resistant, highly resistant to the empirical therapy given (ceftriaxone), leading to outbreaks of sepsis and increased mortality rates. Carbapenem (imipenem, meropenem and doripenem) and aminoglycosides (amikacin) combination was the selected empirical therapy. PMID- 29021720 TI - Burn injury: review of pathophysiology and therapeutic modalities in major burns. AB - Despite a considerable decrease in their incidence worldwide, burn injuries remain one of the commonest forms of trauma and account for a weighty proportion of trauma cases in health-care emergencies around the globe. Although the latest data reveal a substantial decline in burn-related mortality and hospital admissions in the US over the past three decades, severe thermal injuries continue to trigger devastating morbidity and significant mortality while their management remains a dynamic challenge for the entire medical and paramedical community. Concrete evidence continues to be established regarding burn associated pathophysiologic responses, and their destructive sequelae and deleterious effects in survivors at cellular, systemic as well as socio-economic level. Better understanding of these responses have contributed to advances in therapeutic strategies, improved long-term outcomes and catalyzed the reintegration of victims back into society. This paper describes the current understanding of the pathophysiology of a burn injury and characterizes both local and systemic pathophysiologic responses in terms of metabolic, hemodynamics, cardiac, renal, hepatic, gastro-intestinal, immunologic, endocrine as well as male reproductive systems in an attempt to understand the corresponding treatment modalities for this unique patient population. PMID- 29021723 TI - Bacterial infections in burn wound patients at a tertiary teaching hospital in Accra, Ghana. AB - Intact human skin surface is essential for protection against infection, preservation of body fluid homeostasis and thermoregulation. Burn injury compromises the skin barrier and enables bacterial infection, hence delaying burn wound healing. This study aimed to determine the microbial profile of burn wounds, and resistance patterns of microbes with respect to the source of the injured patient's wound. Fifty wound swab samples were collected from fifty burn patients at the Korle-Bu Teaching Hospital, Accra (KBTH). Sterile swabs moistened with sterile saline were used to swab burn wounds. The swabs were plated on blood agar and MacConkey agar for 24 hrs at 37 degrees C. Biochemical tests were carried out on the representative isolate on each plate, and antibacterial sensitivity pattern was determined using the Kirby-Bauer disc diffusion method. The study revealed that the main source of burns was gas flames (66%) and scalds (28%). Out of the 50 samples analysed, 86% were culture positive and 14% were culture negative for bacteria. The predominant organisms isolated were Pseudomonas sp. (30.2%) and Acinetobacter sp. (20.9%). Proteus mirabillis (2.3%) and Staphylococcus aureus (2.3%) were the least frequently isolated bacteria. Although Pseudomonas sp. showed varying resistance levels to gentamicin, cotrimoxazole and ciprofloxacin, all the Acinetobacter sp. were resistant to most of the tested antibiotics used. Resistant gram negative bacteria are the most common isolates associated with burn wounds in Accra, Ghana. Hence a careful selection of antibiotics to control the wound infection is required for proper management of burn wounds in order to help reduce morbidity and mortality. PMID- 29021724 TI - Inhalation injury in a burn unit: a retrospective review of prognostic factors. AB - Inhalation injury (InI) is known to seriously affect the prognosis of burn patients, as it is strongly associated with high morbidity and mortality. Despite major advances in the treatment of burn patients in the past years, advances in the treatment of smoke InI have been somewhat limited; mortality reduction mostly results from improvements in critical care. It is difficult to separate the contribution of InI from other mechanisms that also affect respiratory tract and lungs. The aim of this study was to compare patients with and without InI and to identify prognostic factors among patients with smoke InI. Patients with InI displayed higher total body surface area (TBSA) burned, higher incidence of pneumonia and acute respiratory distress syndrome (ARDS), a higher rate of positive blood cultures and a significantly higher death rate. We could conclude that older age, higher TBSA, ARDS and pneumonia were independent predictive factors for mortality in our global study population. Older age and higher TBSA were the only independent factors found to be predictive of mortality in patients with InI. PMID- 29021725 TI - Prehospital hydroxocobalamin for inhalation injury and cyanide toxicity in the United States - analysis of a database and survey of ems providers. AB - Prehospital use of hydroxocobalamin as an antidote for cyanide toxicity, a serious complication of smoke inhalation, has yet to be universally adopted in the United States though its efficacy and safety have been demonstrated since 2006. The purpose of this study was to characterize practices of prehospital hydroxocobalamin administration via a survey of emergency medical services (EMS) and to report a case series from an EMS database to track use of hydroxocobalamin. The Fire Smoke Coalition Newsletter emailed a voluntary survey to EMS subscribers regarding hydroxocobalamin use. Survey responses were analyzed in addition to survival data from the Smoke Inhalation Treatment Database (SITD), a publically available, self-reported, online database for EMS regarding smoke inhalation patient outcomes. Analysis was compared to current published data from PubMed. The survey had a 14% response rate (284/2000). Only 38% reported prehospital utilization of a hydrogen cyanide antidote with 46% using hydroxocobalamin. 20% of responders reported a formal ALS protocol was in place for hydroxocobalamin use. For the SITD, 12 of 13 (92%) patients who received hydroxocobalamin for suspected inhalation survived. Other studies found a survival rate of 72% and 42% after administration of hydroxocobalamin for smoke inhalation. Prehospital administration of hydroxocobalamin for cyanide toxicity is uncommon in the United States, as evidenced by this analysis, despite well documented safety and efficacy. Although a small sample, patients who received prehospital hydroxocobalamin had improved survival. This survival rate is significantly greater than those reported previously. PMID- 29021726 TI - Investigating the relationship between microalbuminuria and prognosis of patients with severe burns in the Motahari Burn Hospital. AB - Microalbuminuria seems to be a reflection of increased vascular permeability caused by systemic inflammatory response, and is likely to be a predictor of mortality, sepsis and other outcomes of severe burn patients. We investigated the impact of microalbuminuria on the prognosis of patients with severe burns. This is a prospective study on severe burn patients (above 20%) admitted in the first 24 hours after burns to the Motahari Burn Hospital. Patients' microalbuminuria was measured at admission and 48 hours later, and its relationship with patient prognosis (sepsis, renal failure, death, inhalation injury and systemic inflammatory response syndrome) was analyzed. We concluded that microalbuminuria at admission in patients with severe burns was directly related to inhalation injury (P = 0.018), ARDS during hospitalization (P = 0.001) and length of hospital stay (P = 0.025). Moreover, microalbuminuria at 48 hours after admission had a direct connection with patient death (P = 0.001), sepsis (P = 0.001), renal failure (P = 0.001) and SIRS (P = 0.001). Microalbuminuria is a simple, noninvasive, fast and affordable test to predict sepsis, mortality, renal failure, systemic inflammatory response and a finding associated with inhalation injury in severe burn patients, making it a fast prognostic predictor that helps to improve the management of these patients. PMID- 29021728 TI - Olympic torch flap: one-stop option for simultaneous brow, upper and lower lid reconstruction in post burn patients. AB - Facial units reconstruction in a post burn patient poses tough challenges. Simultaneous brow and lid reconstruction is one of them. This article presents a 45-year-old epileptic male with burn of complete face. The task of reconstructing the brow, upper and lower lids was successfully accomplished using a modification of the Guyuron postauricular fasciocutaneous flap, after initial grafting and radial forearm flap reconstruction of forehead and other parts of the face. The article gives a single-stop solution for simultaneous reconstruction of brow and lids using a random pattern extension of the traditional postauricular flap, thus proving the excellent vascularity and hence durability of the flap in spite of a 180 degrees change in the orientation of the flap with respect to the axis. PMID- 29021727 TI - Analgesia, sedation and arousal status in burn patients: the gap between recommendations and current practices. AB - Assessment and treatment of pain, agitation and delirium are integral parts of the management of critically ill patients. The purpose of this review is to describe how pain, delirium and agitation are managed in general intensive care units and in burn units, and to address whether management of these issues is compatible with internationally accepted recommendations. A substantial gap exists between the conception of the guidelines, clinical practice and physicians' statements regarding pain, sedation and delirium management. Specific training programs might be required to increase the implementation rate of guidelines and best practices on sedation, pain and delirium assessment and management in burn units. PMID- 29021729 TI - Management of split skin graft donor site in the West African sub region: survey of plastic surgeons' practice. AB - Split skin graft (SSG) is one of the most commonly performed operations on any Plastic Surgery service. Rate of donor site healing is affected by various factors including the type of dressing applied. The aim of this study was to survey the practice of plastic surgeons in the sub region with respect to management of SSG donor site and see how it conforms to international standards. Structured questionnaires on various aspects of the harvest and management of SSG donor sites were administered to plastic surgeons during the 53rd annual conference of the West African College of Surgeons (WACS) at Lome, Togo in March 2013. The data were analyzed using descriptive statistics. There were 47 respondents out of 55 plastic surgeons from four West African countries, which represented 85.4% of registered participants at the plastic surgery section of the conference. All the respondents performed SSG regularly, and the thigh was the most commonly used donor site. Different types of paraffin gauze remained the most commonly used primary donor site dressing. Only 17% of the respondents apply a topical local anaesthetic agent on the donor site. The choice of SSG donor site dressing in the sub region was driven mainly by availability. Concerted efforts must be made to access newer wound care products for optimum management of this commonly performed operation. PMID- 29021731 TI - MBC News. PMID- 29021730 TI - Case report of a high voltage electrical injury and review of the indications for early fasciotomy in limb salvage of an electrically injured limb. AB - Electrical injuries make up a relatively small portion of burn injuries. Safety measures in place on domestic electricity supply have reduced the occurrence of high voltage electrical injuries. We present the case of a young man who sustained a high voltage electrical injury on all four limbs. Early fasciotomy was performed on both his hands and forearms. Despite early compartment release, the left upper limb deteriorated and required amputation. In this article we discuss the indications, outcomes and complications of early fasciotomy. PMID- 29021732 TI - Nanoparticle size distribution quantification: results of a small-angle X-ray scattering inter-laboratory comparison. AB - This paper presents the first worldwide inter-laboratory comparison of small angle X-ray scattering (SAXS) for nanoparticle sizing. The measurands in this comparison are the mean particle radius, the width of the size distribution and the particle concentration. The investigated sample consists of dispersed silver nanoparticles, surrounded by a stabilizing polymeric shell of poly(acrylic acid). The silver cores dominate the X-ray scattering pattern, leading to the determination of their radius size distribution using (i) the generalized indirect Fourier transformation method, (ii) classical model fitting using SASfit and (iii) a Monte Carlo fitting approach using McSAS. The application of these three methods to the collected data sets from the various laboratories produces consistent mean number- and volume-weighted core radii of Rn = 2.76 (6) nm and Rv = 3.20 (4) nm, respectively. The corresponding widths of the lognormal radius distribution of the particles were sigman = 0.65 (1) nm and sigmav = 0.71 (1) nm. The particle concentration determined using this method was 3.0 (4) g l-1 or 4.2 (7) * 10-6 mol l-1. These results are affected slightly by the choice of data evaluation procedure, but not by the instruments: the participating laboratories at synchrotron SAXS beamlines, commercial and in-house-designed instruments were all able to provide highly consistent data. This demonstrates that SAXS is a suitable method for revealing particle size distributions in the sub-20 nm region (at minimum), out of reach for most other analytical methods. PMID- 29021733 TI - Berkeley Screen: a set of 96 solutions for general macromolecular crystallization. AB - Using statistical analysis of the Biological Macromolecular Crystallization Database, combined with previous knowledge about crystallization reagents, a crystallization screen called the Berkeley Screen has been created. Correlating crystallization conditions and high-resolution protein structures, it is possible to better understand the influence that a particular solution has on protein crystal formation. Ions and small molecules such as buffers and precipitants used in crystallization experiments were identified in electron density maps, highlighting the role of these chemicals in protein crystal packing. The Berkeley Screen has been extensively used to crystallize target proteins from the Joint BioEnergy Institute and the Collaborative Crystallography program at the Berkeley Center for Structural Biology, contributing to several Protein Data Bank entries and related publications. The Berkeley Screen provides the crystallographic community with an efficient set of solutions for general macromolecular crystallization trials, offering a valuable alternative to the existing commercially available screens. PMID- 29021734 TI - Calibrating SANS data for instrument geometry and pixel sensitivity effects: access to an extended Q range. AB - An improved data-reduction procedure is proposed and demonstrated for small-angle neutron scattering (SANS) measurements. Its main feature is the correction of geometry- and wavelength-dependent intensity variations on the detector in a separate step from the different pixel sensitivities: the geometric and wavelength effects can be corrected analytically, while pixel sensitivities have to be calibrated to a reference measurement. The geometric effects are treated for position-sensitive 3He proportional counter tubes, where they are anisotropic owing to the cylindrical geometry of the gas tubes. For the calibration of pixel sensitivities, a procedure is developed that is valid for isotropic and anisotropic signals. The proposed procedure can save a significant amount of beamtime which has hitherto been used for calibration measurements. PMID- 29021735 TI - Quantifying adsorption-induced deformation of nanoporous materials on different length scales. AB - A new in situ setup combining small-angle neutron scattering (SANS) and dilatometry was used to measure water-adsorption-induced deformation of a monolithic silica sample with hierarchical porosity. The sample exhibits a disordered framework consisting of macropores and struts containing two dimensional hexagonally ordered cylindrical mesopores. The use of an H2O/D2O water mixture with zero scattering length density as an adsorptive allows a quantitative determination of the pore lattice strain from the shift of the corresponding diffraction peak. This radial strut deformation is compared with the simultaneously measured macroscopic length change of the sample with dilatometry, and differences between the two quantities are discussed on the basis of the deformation mechanisms effective at the different length scales. It is demonstrated that the SANS data also provide a facile way to quantitatively determine the adsorption isotherm of the material by evaluating the incoherent scattering contribution of H2O at large scattering vectors. PMID- 29021736 TI - Nanocrystallography measurements of early stage synthetic malaria pigment. AB - The recent availability of extremely intense, femtosecond X-ray free-electron laser (XFEL) sources has spurred the development of serial femtosecond nanocrystallography (SFX). Here, SFX is used to analyze nanoscale crystals of beta-hematin, the synthetic form of hemozoin which is a waste by-product of the malaria parasite. This analysis reveals significant differences in beta-hematin data collected during SFX and synchrotron crystallography experiments. To interpret these differences two possibilities are considered: structural differences between the nanocrystal and larger crystalline forms of beta-hematin, and radiation damage. Simulation studies show that structural inhomogeneity appears at present to provide a better fit to the experimental data. If confirmed, these observations will have implications for designing compounds that inhibit hemozoin formation and suggest that, for some systems at least, additional information may be gained by comparing structures obtained from nanocrystals and macroscopic crystals of the same molecule. PMID- 29021737 TI - BioXTAS RAW: improvements to a free open-source program for small-angle X-ray scattering data reduction and analysis. AB - BioXTAS RAW is a graphical-user-interface-based free open-source Python program for reduction and analysis of small-angle X-ray solution scattering (SAXS) data. The software is designed for biological SAXS data and enables creation and plotting of one-dimensional scattering profiles from two-dimensional detector images, standard data operations such as averaging and subtraction and analysis of radius of gyration and molecular weight, and advanced analysis such as calculation of inverse Fourier transforms and envelopes. It also allows easy processing of inline size-exclusion chromatography coupled SAXS data and data deconvolution using the evolving factor analysis method. It provides an alternative to closed-source programs such as Primus and ScAtter for primary data analysis. Because it can calibrate, mask and integrate images it also provides an alternative to synchrotron beamline pipelines that scientists can install on their own computers and use both at home and at the beamline. PMID- 29021738 TI - Erratum: Expanding Lorentz and spectrum corrections to large volumes of reciprocal space for single-crystal time-of-flight neutron diffraction. Corrigendum. AB - [This corrects the article DOI: 10.1107/S1600576716001369.]. PMID- 29021739 TI - Effect of Error Augmentation on Brain Activation and Motor Learning of a Complex Locomotor Task. AB - Up to date, the functional gains obtained after robot-aided gait rehabilitation training are limited. Error augmenting strategies have a great potential to enhance motor learning of simple motor tasks. However, little is known about the effect of these error modulating strategies on complex tasks, such as relearning to walk after a neurologic accident. Additionally, neuroimaging evaluation of brain regions involved in learning processes could provide valuable information on behavioral outcomes. We investigated the effect of robotic training strategies that augment errors-error amplification and random force disturbance-and training without perturbations on brain activation and motor learning of a complex locomotor task. Thirty-four healthy subjects performed the experiment with a robotic stepper (MARCOS) in a 1.5 T MR scanner. The task consisted in tracking a Lissajous figure presented on a display by coordinating the legs in a gait-like movement pattern. Behavioral results showed that training without perturbations enhanced motor learning in initially less skilled subjects, while error amplification benefited better-skilled subjects. Training with error amplification, however, hampered transfer of learning. Randomly disturbing forces induced learning and promoted transfer in all subjects, probably because the unexpected forces increased subjects' attention. Functional MRI revealed main effects of training strategy and skill level during training. A main effect of training strategy was seen in brain regions typically associated with motor control and learning, such as, the basal ganglia, cerebellum, intraparietal sulcus, and angular gyrus. Especially, random disturbance and no perturbation lead to stronger brain activation in similar brain regions than error amplification. Skill-level related effects were observed in the IPS, in parts of the superior parietal lobe (SPL), i.e., precuneus, and temporal cortex. These neuroimaging findings indicate that gait-like motor learning depends on interplay between subcortical, cerebellar, and fronto-parietal brain regions. An interesting observation was the low activation observed in the brain's reward system after training with error amplification compared to training without perturbations. Our results suggest that to enhance learning of a locomotor task, errors should be augmented based on subjects' skill level. The impacts of these strategies on motor learning, brain activation, and motivation in neurological patients need further investigation. PMID- 29021740 TI - Electroacupuncture Alleviates Surgical Trauma-Induced Hypothalamus Pituitary Adrenal Axis Hyperactivity Via microRNA-142. AB - Electroacupuncture (EA) could improve the hyperactivity of the hypothalamus pituitary adrenal (HPA) axis induced by hepatectomy. However, its underlying mechanism still remains largely unclear. Here, we found that hypothalamic corticotrophin releasing hormone (CRH) modulates the function of the HPA axis, while hepatectomy induced an HPA axis disorder and EA application could regulate the hypothalamic CRH. We first demonstrated that microRNAs (miRNAs) target on CRH via bioinformatics analysis and screened them in the primary hypothalamic neurons. MicroR-142 (miR-142) and miR-376c were identified to inhibit CRH at the mRNA and protein levels, and a dual luciferase reporter assay confirmed their binding to the 3'-untranslated regions (3'-UTR) of CRH. Further analyses revealed a decrease in hypothalamic miR-142 expression in the hepatectomy rats and an increase in miR-142 and miR-376c after EA intervention. Importantly, the improvement effect of EA on the HPA axis regulatory function in hepatectomy rats was blocked by miR-142 antagomir. Our findings illustrated that EA could up regulate hypothalamic miR-142 expression and decrease the CRH level to alleviate the hyperactivity of the HPA axis induced by hepatectomy. PMID- 29021743 TI - Resolving Astrocyte Heterogeneity in the CNS. AB - Astrocytes play essential roles in nearly all aspects of brain function from modulating synapses and neurovasculature to preserving appropriate extracellular solute concentrations. To meet the complex needs of the central nervous system (CNS), astrocytes possess highly specialized properties that are optimized for their surrounding neural circuitry. Precisely how these diverse astrocytes types are generated in vivo, however, remains poorly understood. Key to this process is a critical balance of intrinsic developmental patterning and context-dependent environmental signaling events that configures astrocyte phenotype. Indeed, emerging lines of evidence indicate that persistent cues from neighboring cells in the mature CNS cooperate with early patterning events to promote astrocyte diversity. Consistent with this, manipulating Sonic hedgehog (Shh), Notch and fibroblast growth factor (FGF) signaling in the adult brain, have profound effects on the structural, morphological and physiological state of mature astrocytes. These pathways may become disrupted in various neurological diseases and contribute to CNS pathology. This mini-review article focuses on how context dependent environmental cues cooperate with intrinsic developmental patterning events to control astrocyte diversity in vivo in order to promote healthy brain function. PMID- 29021742 TI - Neuroprotective Mechanisms of Lycium barbarum Polysaccharides Against Ischemic Insults by Regulating NR2B and NR2A Containing NMDA Receptor Signaling Pathways. AB - Glutamate excitotoxicity plays an important role in neuronal death after ischemia. However, all clinical trials using glutamate receptor inhibitors have failed. This may be related to the evidence that activation of different subunit of NMDA receptor will induce different effects. Many studies have shown that activation of the intrasynaptic NR2A subunit will stimulate survival signaling pathways, whereas upregulation of extrasynaptic NR2B will trigger apoptotic pathways. A Lycium barbarum polysaccharide (LBP) is a mixed compound extracted from Lycium barbarum fruit. Recent studies have shown that LBP protects neurons against ischemic injury by anti-oxidative effects. Here we first reported that the effect of LBP against ischemic injury can be achieved by regulating NR2B and NR2A signaling pathways. By in vivo study, we found LBP substantially reduced CA1 neurons from death after transient global ischemia and ameliorated memory deficit in ischemic rats. By in vitro study, we further confirmed that LBP increased the viability of primary cultured cortical neurons when exposed to oxygen-glucose deprivation (OGD) for 4 h. Importantly, we found that LBP antagonized increase in expression of major proteins in the NR2B signal pathway including NR2B, nNOS, Bcl 2-associated death promoter (BAD), cytochrome C (cytC) and cleaved caspase-3, and also reduced ROS level, calcium influx and mitochondrial permeability after 4 h OGD. In addition, LBP prevented the downregulation in the expression of NR2A, pAkt and pCREB, which are important cell survival pathway components. Furthermore, LBP attenuated the effects of a NR2B co-agonist and NR2A inhibitor on cell mortality under OGD conditions. Taken together, our results demonstrated that LBP is neuroprotective against ischemic injury by its dual roles in activation of NR2A and inhibition of NR2B signaling pathways, which suggests that LBP may be a superior therapeutic candidate for targeting glutamate excitotoxicity for the treatment of ischemic stroke. PMID- 29021741 TI - The Neuroprotective Role of Protein Quality Control in Halting the Development of Alpha-Synuclein Pathology. AB - Synucleinopathies are a family of neurodegenerative disorders that comprises Parkinson's disease, dementia with Lewy bodies, and multiple system atrophy. Each of these disorders is characterized by devastating motor, cognitive, and autonomic consequences. Current treatments for synucleinopathies are not curative and are limited to improvement of quality of life for affected individuals. Although the underlying causes of these diseases are unknown, a shared pathological hallmark is the presence of proteinaceous inclusions containing the alpha-synuclein (alpha-syn) protein in brain tissue. In the past few years, it has been proposed that these inclusions arise from the self-templated, prion-like spreading of misfolded and aggregated forms of alpha-syn throughout the brain, leading to neuronal dysfunction and death. In this review, we describe how impaired protein homeostasis is a prominent factor in the alpha-syn aggregation cascade, with alterations in protein quality control (PQC) pathways observed in the brains of patients. We discuss how PQC modulates alpha-syn accumulation, misfolding and aggregation primarily through chaperoning activity, proteasomal degradation, and lysosome-mediated degradation. Finally, we provide an overview of experimental data indicating that targeting PQC pathways is a promising avenue to explore in the design of novel neuroprotective approaches that could impede the spreading of alpha-syn pathology and thus provide a curative treatment for synucleinopathies. PMID- 29021745 TI - Tyramine Actions on Drosophila Flight Behavior Are Affected by a Glial Dehydrogenase/Reductase. AB - The biogenic amines octopamine (OA) and tyramine (TA) modulate insect motor behavior in an antagonistic manner. OA generally enhances locomotor behaviors such as Drosophila larval crawling and flight, whereas TA decreases locomotor activity. However, the mechanisms and cellular targets of TA modulation of locomotor activity are incompletely understood. This study combines immunocytochemistry, genetics and flight behavioral assays in the Drosophila model system to test the role of a candidate enzyme for TA catabolism, named Nazgul (Naz), in flight motor behavioral control. We hypothesize that the dehydrogenase/reductase Naz represents a critical step in TA catabolism. Immunocytochemistry reveals that Naz is localized to a subset of Repo positive glial cells with cell bodies along the motor neuropil borders and numerous positive Naz arborizations extending into the synaptic flight motor neuropil. RNAi knock down of Naz in Repo positive glial cells reduces Naz protein level below detection level by Western blotting. The resulting consequence is a reduction in flight durations, thus mimicking known motor behavioral phenotypes as resulting from increased TA levels. In accord with the interpretation that reduced TA degradation by Naz results in increased TA levels in the flight motor neuropil, the motor behavioral phenotype can be rescued by blocking TA receptors. Our findings indicate that TA modulates flight motor behavior by acting on central circuitry and that TA is normally taken up from the central motor neuropil by Repo-positive glial cells, desaminated and further degraded by Naz. PMID- 29021746 TI - Lever Insertion as a Salient Stimulus Promoting Insensitivity to Outcome Devaluation. AB - Flexible and efficient decision-making in complex environments can be achieved through constant interactions between the goal-directed and habitual systems. While goal-directed behavior is considered dependent upon Response-Outcome (R-O) associations, habits instead rely on Stimulus-Response (S-R) associations. However, the stimuli that support the S-R association underlying habitual responding in typical instrumental procedures are poorly defined. To resolve this issue, we designed a discrete-trials procedure, in which rats must wait for lever insertion and complete a sequence of five lever presses to obtain a reward (20% sucrose or grain-based pellets). Lever insertion thus constituted an audio-visual stimulus signaling the opportunity for reward. Using sensory-specific satiety induced devaluation, we found that rats trained with grain-based pellets remained sensitive to outcome devaluation over the course of training with this procedure whereas rats trained with a solution of 20% sucrose rapidly developed habit, and that insensitivity to outcome devaluation in rats trained with sucrose did not result from a bias in general satiety. Importantly, although rats trained with pellets were sensitive to satiety-induced devaluation, their performance was not affected by degradation of instrumental contingency and devaluation by conditioned taste aversion (CTA), suggesting that these rats may also have developed habitual responding. To test whether the discrete-trials procedure biases subjects towards habitual responding, we compared discrete-trials to free running instrumental responding, and found that rats trained with sucrose in a fixed-ratio 5 (FR5) procedure with continuous presentation of the lever were goal directed. Together, these results demonstrate that discrete presentations of a stimulus predictive of reward availability promoted the formation of S-R habit in rats trained with liquid sucrose. Further research is necessary to explain inconsistencies in sensitivity to outcome devaluation when rats are trained with grain-based pellets. PMID- 29021744 TI - Posterior Thalamic Nucleus Modulation of Tactile Stimuli Processing in Rat Motor and Primary Somatosensory Cortices. AB - Rodents move rhythmically their facial whiskers and compute differences between signals predicted and those resulting from the movement to infer information about objects near their head. These computations are carried out by a large network of forebrain structures that includes the thalamus and the primary somatosensory (S1BF) and motor (M1wk) cortices. Spatially and temporally precise mechanorreceptive whisker information reaches the S1BF cortex via the ventroposterior medial thalamic nucleus (VPM). Other whisker-related information may reach both M1wk and S1BF via the axons from the posterior thalamic nucleus (Po). However, Po axons may convey, in addition to direct sensory signals, the dynamic output of computations between whisker signals and descending motor commands. It has been proposed that this input may be relevant for adjusting cortical responses to predicted vs. unpredicted whisker signals, but the effects of Po input on M1wk and S1BF function have not been directly tested or compared in vivo. Here, using electrophysiology, optogenetics and pharmacological tools, we compared in adult rats M1wk and S1BF in vivo responses in the whisker areas of the motor and primary somatosensory cortices to passive multi-whisker deflection, their dependence on Po activity, and their changes after a brief intense activation of Po axons. We report that the latencies of the first component of tactile-evoked local field potentials in M1wk and S1BF are similar. The evoked potentials decrease markedly in M1wk, but not in S1BF, by injection in Po of the GABAA agonist muscimol. A brief high-frequency electrical stimulation of Po decreases the responsivity of M1wk and S1BF cells to subsequent whisker stimulation. This effect is prevented by the local application of omega-agatoxin, suggesting that it may in part depend on GABA release by fast-spiking parvalbumin (PV)-expressing cortical interneurons. Local optogenetic activation of Po synapses in different cortical layers also diminishes M1wk and S1BF responses. This effect is most pronounced in the superficial layers of both areas, known to be the main source and target of their reciprocal cortico-cortical connections. PMID- 29021747 TI - Hyperbaric Oxygen Environment Can Enhance Brain Activity and Multitasking Performance. AB - Background: The Brain uses 20% of the total oxygen supply consumed by the entire body. Even though, <10% of the brain is active at any given time, it utilizes almost all the oxygen delivered. In order to perform complex tasks or more than one task (multitasking), the oxygen supply is shifted from one brain region to another, via blood perfusion modulation. The aim of the present study was to evaluate whether a hyperbaric oxygen (HBO) environment, with increased oxygen supply to the brain, will enhance the performance of complex and/or multiple activities. Methods: A prospective, double-blind randomized control, crossover trial including 22 healthy volunteers. Participants were asked to perform a cognitive task, a motor task and a simultaneous cognitive-motor task (multitasking). Participants were randomized to perform the tasks in two environments: (a) normobaric air (1 ATA 21% oxygen) (b) HBO (2 ATA 100% oxygen). Two weeks later participants were crossed to the alternative environment. Blinding of the normobaric environment was achieved in the same chamber with masks on while hyperbaric sensation was simulated by increasing pressure in the first minute and gradually decreasing to normobaric environment prior to tasks performance. Results: Compared to the performance at normobaric conditions, both cognitive and motor single tasks scores were significantly enhanced by HBO environment (p < 0.001 for both). Multitasking performance was also significantly enhanced in HBO environment (p = 0.006 for the cognitive part and p = 0.02 for the motor part). Conclusions: The improvement in performance of both single and multi-tasking while in an HBO environment supports the hypothesis which according to, oxygen is indeed a rate limiting factor for brain activity. Hyperbaric oxygenation can serve as an environment for brain performance. Further studies are needed to evaluate the optimal oxygen levels for maximal brain performance. PMID- 29021748 TI - Binge-Like Sucrose Self-Administration Experience Inhibits Cocaine and Sucrose Seeking Behavior in Offspring. AB - Recent studies show that emotional and environmental stimuli promote epigenetic inheritance and influence behavioral development in the subsequent generations. Caloric mal- and under-nutrition has been shown to cause metabolic disturbances in the subsequent generation, but the incentive properties of paternal binge-like eating in offspring is still unknown. Here we show that paternal sucrose self administration experience could induce inter-generational decrease in both sucrose and cocaine-seeking behavior, and sucrose responding in F1 rats, but not F2, correlated with the performance of F0 rats in sucrose self-administration. Higher anxiety level and decreased cocaine sensitivity were observed in Sucrose F1 compared with Control F1, possibly contributing to the desensitization phenotype in cocaine and sucrose self-administration. Our study revealed that paternal binge-like sucrose consumption causes decrease in reward seeking and induces anxiety-like behavior in the F1 offspring. PMID- 29021749 TI - Phase-Dependent Modulation of Signal Transmission in Cortical Networks through tACS-Induced Neural Oscillations. AB - Oscillatory neural activity is considered a basis of signal transmission in brain networks. However, the causal role of neural oscillations in regulating cortico cortical signal transmission has so far not been directly demonstrated. To date, due to methodological limitations, studies on the online modulatory mechanisms of transcranial alternating current stimulation (tACS)-induced neural oscillations are confined to the primary motor cortex. To address the causal role of oscillatory activity in modulating cortico-cortical signal transmission, we have established a new method using concurrent tACS, transcranial magnetic stimulation (TMS) and electroencephalography (EEG). Through tACS, we introduced 6-Hz (theta) oscillatory activity in the human dorsolateral prefrontal cortex (DLPFC). During tACS, we applied single-pulse TMS over the DLPFC at different phases of tACS and assessed propagation of TMS-induced neural activity with EEG. We show that tACS induced theta oscillations modulate the propagation of TMS-induced activity in a phase-dependent manner and that phase-dependent modulation is not simply explained by the instantaneous amplitude of tACS. The results demonstrate a phase dependent modulatory mechanism of tACS at a cortical network level, which is consistent with a causal role of neural oscillations in regulating the efficacy of signal transmission in the brain. PMID- 29021751 TI - Language Learning Variability within the Dorsal and Ventral Streams as a Cue for Compensatory Mechanisms in Aphasia Recovery. AB - Dorsal and ventral pathways connecting perisylvian language areas have been shown to be functionally and anatomically segregated. Whereas the dorsal pathway integrates the sensory-motor information required for verbal repetition, the ventral pathway has classically been associated with semantic processes. The great individual differences characterizing language learning through life partly correlate with brain structure and function within these dorsal and ventral language networks. Variability and plasticity within these networks also underlie inter-individual differences in the recovery of linguistic abilities in aphasia. Despite the division of labor of the dorsal and ventral streams, studies in healthy individuals have shown how the interaction of them and the redundancy in the areas they connect allow for compensatory strategies in functions that are usually segregated. In this mini-review we highlight the need to examine compensatory mechanisms between streams in healthy individuals as a helpful guide to choosing the most appropriate rehabilitation strategies, using spared functions and targeting preserved compensatory networks for brain plasticity. PMID- 29021752 TI - Potential Impact of Geomagnetic Field in Transcranial Magnetic Stimulation for the Treatment of Neurodegenerative Diseases. AB - Throughout the long history of various therapeutic trials of transcranial magnetic stimulation (TMS), some TMS protocols have been reported to be clearly effective in the treatment of neurodegenerative diseases. Despite promising results from repetitive TMS (rTMS) using low frequency electromagnetic fields (EMFs) for neurodegenerative diseases, the low reproducibility has hampered the clinical applications of rTMS. Here, based on the notion of radical pair mechanism explaining magnetoreception in living organisms, we propose a new perspective that rTMS with controlled geomagnetic field (rTMS-GMF) can be an efficient and reproducible therapeutic approach for neurodegenerative diseases. In addition, combined consideration of imprinted GMF and/or EMFs in patients' earlier life may augment the potential efficacy of the rTMS-GMF. The investigation of this approach is intriguing and may have a high impact on the technical suitability and clinical application of the rTMS-GMF in the near future. PMID- 29021753 TI - Improving the Robustness of Electromyogram-Pattern Recognition for Prosthetic Control by a Postprocessing Strategy. AB - Electromyogram (EMG) contains rich information for motion decoding. As one of its major applications, EMG-pattern recognition (PR)-based control of prostheses has been proposed and investigated in the field of rehabilitation robotics for decades. These prostheses can offer a higher level of dexterity compared to the commercially available ones. However, limited progress has been made toward clinical application of EMG-PR-based prostheses, due to their unsatisfactory robustness against various interferences during daily use. These interferences may lead to misclassifications of motion intentions, which damage the control performance of EMG-PR-based prostheses. A number of studies have applied methods that undergo a postprocessing stage to determine the current motion outputs, based on previous outputs or other information, which have proved effective in reducing erroneous outputs. In this study, we proposed a postprocessing strategy that locks the outputs during the constant contraction to block out occasional misclassifications, upon detecting the motion onset using a threshold. The strategy was investigated using three different motion onset detectors, namely mean absolute value, Teager-Kaiser energy operator, or mechanomyogram (MMG). Our results indicate that the proposed strategy could suppress erroneous outputs, during rest and constant contractions in particular. In addition, with MMG as the motion onset detector, the strategy was found to produce the most significant improvement in the performance, reducing the total errors up to around 50% (from 22.9 to 11.5%) in comparison to the original classification output in the online test, and it is the most robust against threshold value changes. We speculate that motion onset detectors that are both smooth and responsive would further enhance the efficacy of the proposed postprocessing strategy, which would facilitate the clinical application of EMG-PR-based prosthetic control. PMID- 29021750 TI - Cough-Anal Reflex May Be the Expression of a Pre-Programmed Postural Action. AB - When coughing, an involuntary contraction of the external anal sphincter occurs, in order to prevent unwanted leakages or sagging of the pelvis muscular wall. Literature originally described such cough-anal response as a reflex elicited by cough, therefore identifying a precise cause-effect relationship. However, recent studies report that the anal contraction actually precedes the rise in abdominal pressure during cough expiratory effort, so that the sphincter activity should be pre-programmed. In recent years, an important family of pre-programmed muscle activities has been well documented to precede voluntary movements: these anticipatory actions play a fundamental role in whole body and segmental postural control, hence they are referred to as anticipatory postural adjustments (APAs). On these basis, we searched in literature for similarities between APAs and the cough-anal response, observing that both follow the same predictive homeostatic principle, namely that anticipatory collateral actions are needed to prevent the unwanted mechanical consequences induced by the primary movement. We thus propose that the cough-anal response also belongs to the family of pre-programmed actions, as it may be interpreted as an APA acting on the abdominal-thoracic compartment; in other words, the cough-anal response may actually be an Anticipatory Sphincter Adjustment, the visceral counterpart of APAs. PMID- 29021754 TI - Lower Performance in Orientation to Time and Place Associates with Greater Risk of Cardiovascular Events and Mortality in the Oldest Old: Leiden 85-Plus Study. AB - Background: Impairment in orientation to time and place is commonly observed in community-dwelling older individuals. Nevertheless, the clinical significance of this has been not fully explored. In this study, we investigated the link between performance in orientation domains and future risk of cardiovascular events and mortality in a non-hospital setting of the oldest old adults. Methods: We included 528 subjects free of myocardial infarction (Group A), 477 individuals free of stroke/transient ischemic attack (Group B), and 432 subjects free of both myocardial infarction and stroke/transient ischemic attack (Group C) at baseline from the population-based Leiden 85-plus cohort study. Participants were asked to answer five questions related to orientation to time and five questions related to orientation to place. 5-year risks of first-time fatal and non-fatal myocardial infarction, fatal and non-fatal stroke, as well as cardiovascular and non-cardiovascular mortality, were estimated using the multivariate Cox regression analysis. Results: In the multivariable analyses, adjusted for sociodemographic characteristics and cardiovascular risk factors, each point lower performance in "orientation to time" was significantly associated with higher risk of first-time myocardial infarction (hazard ratio [HR] 1.35, 95% confidence interval [CI] 1.09-1.67, P = 0.007), first-time stroke (HR 1.35, 95% CI 1.12-1.64, P = 0.002), cardiovascular mortality (HR 1.28, 95% CI 1.06-1.54, P = 0.009) and non-cardiovascular mortality (HR 1.37, 95% CI 1.20-1.56, P < 0.001). Similarly, each point lower performance in "orientation to place" was significantly associated with higher risk of first-time myocardial infarction (HR 1.67, 95% CI 1.25-2.22, P = 0.001), first-time stroke (HR 1.39, 95% CI 1.05-1.82, P = 0.016), cardiovascular mortality (HR 1.35, 95% CI 1.00-1.82, P = 0.054) and non-cardiovascular mortality (HR 1.45, 95% CI 1.20-1.77, P < 0.001). Conclusions: Lower performance in orientation to time and place in advanced age is independently related to higher risk of myocardial infarction, stroke and mortality. Impaired orientation might be an early sign of covert vascular injuries, putting subjects at greater risk of cardiovascular events and mortality. PMID- 29021755 TI - DJ-1 Inhibits alpha-Synuclein Aggregation by Regulating Chaperone-Mediated Autophagy. AB - alpha-Synuclein misfolding and aggregation play an important role in the pathogenesis of Parkinson's disease (PD). Loss of function and mutation of the PARK7/DJ-1 gene cause early-onset familial PD. DJ-1 can inhibit alpha-synuclein aggregation, and may function at an early step in the aggregation process. Soluble wild-type (WT) alpha-synuclein is mainly degraded by chaperone-mediated autophagy (CMA), and impairment of CMA is closely related to the pathogenesis of PD. Here, we investigated whether DJ-1 could reduce alpha-synuclein accumulation and aggregation by CMA. DJ-1 knockout mice and DJ-1 siRNA knockdown SH-SY5Y cells were used to investigate the potential mechanisms underlying the relationship between DJ-1 deficiency and alpha-synuclein aggregation. First, we confirmed that DJ-1 deficiency increased the accumulation and aggregation of alpha-synuclein in both SH-SY5Y cells and PD animal models, and overexpression of DJ-1 in vitro effectively decreased alpha-synuclein levels. alpha-Synuclein overexpression activated CMA by elevating the levels of lysosome-associated membrane protein type-2A (LAMP2A), but DJ-1 deficiency suppressed upregulation of LAMP2A. DJ-1 deficiency downregulated the level of lysosomal 70 kDa heat-shock cognate protein (HSC70) but not the levels of that in homogenates. Further studies showed that DJ 1 deficiency accelerated the degradation of LAMP2A in lysosomes, leading to the aggregation of alpha-synuclein. Our study suggests that DJ-1 deficiency aggravates alpha-synuclein aggregation by inhibiting the activation of CMA and provides further evidence of the molecular interaction between PD-related proteins via the CMA pathway. PMID- 29021757 TI - Cerebral Small Vessel Disease Burden Is Associated with Motor Performance of Lower and Upper Extremities in Community-Dwelling Populations. AB - Objective: To investigate the correlation between cerebral small vessel disease (CSVD) burden and motor performance of lower and upper extremities in community dwelling populations. Methods: We performed a cross-sectional analysis on 770 participants enrolled in the Shunyi study, which is a population-based cohort study. CSVD burden, including white matter hyperintensities (WMH), lacunes, cerebral microbleeds (CMBs), perivascular spaces (PVS), and brain atrophy were measured using 3T magnetic resonance imaging. All participants underwent quantitative motor assessment of lower and upper extremities, which included 3-m walking speed, 5-repeat chair-stand time, 10-repeat pronation-supination time, and 10-repeat finger-tapping time. Data on demographic characteristics, vascular risk factors, and cognitive functions were collected. General linear model analysis was performed to identify potential correlations between motor performance measures and imaging markers of CSVD after controlling for confounding factors. Results: For motor performance of the lower extremities, WMH was negatively associated with gait speed (standardized beta = -0.092, p = 0.022) and positively associated with chair-stand time (standardized beta = 0.153, p < 0.0001, surviving FDR correction). For motor performance of the upper extremities, pronation-supination time was positively associated with WMH (standardized beta = 0.155, p < 0.0001, surviving FDR correction) and negatively with brain parenchymal fraction (BPF; standardized beta = -0.125, p = 0.011, surviving FDR correction). Only BPF was found to be negatively associated with finger-tapping time (standardized beta = -0.123, p = 0.012). However, lacunes, CMBs, or PVS were not found to be associated with motor performance of lower or upper extremities in multivariable analysis. Conclusion: Our findings suggest that cerebral microstructural changes related to CSVD may affect motor performance of both lower and upper extremities. WMH and brain atrophy are most strongly associated with motor function deterioration in community-dwelling populations. PMID- 29021756 TI - Expression of Tau Pathology-Related Proteins in Different Brain Regions: A Molecular Basis of Tau Pathogenesis. AB - Microtubule-associated protein tau is hyperphosphorylated and aggregated in affected neurons in Alzheimer disease (AD) brains. The tau pathology starts from the entorhinal cortex (EC), spreads to the hippocampus and frontal and temporal cortices, and finally to all isocortex areas, but the cerebellum is spared from tau lesions. The molecular basis of differential vulnerability of different brain regions to tau pathology is not understood. In the present study, we analyzed brain regional expressions of tau and tau pathology-related proteins. We found that tau was hyperphosphorylated at multiple sites in the frontal cortex (FC), but not in the cerebellum, from AD brain. The level of tau expression in the cerebellum was about 1/4 of that seen in the frontal and temporal cortices in human brain. In the rat brain, the expression level of tau with three microtubule binding repeats (3R-tau) was comparable in the hippocampus, EC, FC, parietal temporal cortex (PTC), occipital-temporal cortex (OTC), striatum, thalamus, olfactory bulb (OB) and cerebellum. However, the expression level of 4R-tau was the highest in the EC and the lowest in the cerebellum. Tau phosphatases, kinases, microtubule-related proteins and other tau pathology-related proteins were also expressed in a region-specific manner in the rat brain. These results suggest that higher levels of tau and tau kinases in the EC and low levels of these proteins in the cerebellum may accounts for the vulnerability and resistance of these representative brain regions to the development of tau pathology, respectively. The present study provides the regional expression profiles of tau and tau pathology-related proteins in the brain, which may help understand the brain regional vulnerability to tau pathology in neurodegenerative tauopathies. PMID- 29021758 TI - Acute Neuromuscular Adaptations in the Postural Control of Patients with Parkinson's Disease after Perturbed Walking. AB - Patients suffering from Parkinson's disease (PD) present motor impairments reflected in the dynamics of the center of pressure (CoP) adjustments during quiet standing. One method to study the dynamics of CoP adjustments is the entropic half-life (EnHL), which measures the short-term correlations of a time series at different time scales. Changes in the EnHL of CoP time series suggest neuromuscular adaptations in the control of posture. In this study, we sought to investigate the immediate changes in the EnHL of CoP adjustments of patients with PD during one session of perturbed (experimental group) and unperturbed treadmill walking (control group). A total of 39 patients with PD participated in this study. The experimental group (n = 19) walked on a treadmill providing small tilting of the treadmill platform. The control group (n = 20) walked without perturbations. Each participant performed 5-min practice followed by three 5-min training blocks of walking with or without perturbation (with 3-min resting in between). Quiet standing CoP data was collected for 30 s at pre-training, after each training block, immediately post-training, and after 10 min retention. The EnHL was computed on the original and surrogates (phase-randomized) CoP signals in the medio-lateral (ML) and anterior-posterior (AP) directions. Data was analyzed using four-way mixed ANOVA. Increased EnHL values were observed for both groups (Time effect, p < 0.001) as the intervention progressed, suggesting neuromuscular adaptations in the control of posture. The EnHL of surrogate signals were significantly lower than for original signals (p < 0.001), confirming that these adaptations come from non-random control processes. There was no Group effect (p = 0.622), however by analyzing the significant Group by Direction by Time interaction (p < 0.05), a more pronounced effect in the ML direction of the perturbed group was observed. Altogether, our findings show that treadmill walking decreases the complexity of CoP adjustments, suggesting neuromuscular adaptations in balance control during a short training period. Further investigations are required to assess these adaptations during longer training intervals. PMID- 29021759 TI - Effects of Gladiolus dalenii on the Stress-Induced Behavioral, Neurochemical, and Reproductive Changes in Rats. AB - Gladiolus dalenii is a plant commonly used in many regions of Cameroon as a cure for various diseases like headaches, epilepsy, schizophrenia, and mood disorders. Recent studies have revealed that the aqueous extract of G. dalenii (AEGD) exhibited antidepressant-like properties in rats. Therefore, we hypothesized that the AEGD could protect from the stress-induced behavioral, neurochemical, and reproductive changes in rats. The objective of the present study was to elucidate the effect of the AEGD on behavioral, neurochemical, and reproductive characteristics, using female rats subjected to chronic immobilization stress. The chronic immobilization stress (3 h per day for 28 days) was applied to induce female reproductive and behavioral impairments in rats. The immobilization stress was provoked in rats by putting them separately inside cylindrical restrainers with ventilated doors at ambient temperature. The plant extract was given to rats orally everyday during 28 days, 5 min before induction of stress. On a daily basis, a vaginal smear was made to assess the duration of the different phases of the estrous cycle and at the end of the 28 days of chronic immobilization stress, the rat's behavior was assessed in the elevated plus maze. They were sacrificed by cervical disruption. The organs were weighed, the ovary histology done, and the biochemical parameters assessed. The findings of this research revealed that G. dalenii increased the entries and the time of open arm exploration in the elevated plus maze. Evaluation of the biochemical parameters levels indicated that there was a significant reduction in the corticosterone, progesterone, and prolactin levels in the G. dalenii aqueous extract treated rats compared to stressed rats whereas the levels of serotonin, triglycerides, adrenaline, cholesterol, glucose estradiol, follicle stimulating hormone and luteinizing hormone were significantly increased in the stressed rats treated with, G. dalenii, diazepam and in co-administration of the plant extract and diazepam treated rats. Moreover stressed rats showed significant changes in estrous cycle phases compared to vehicle control and these changes of the estrous cycle were less in the rats treated with G. dalenii compared to the negative control rats. G. dalenii extract showed antagonizing effects on the stress-induced reproductive, behavioral, and neurochemical changes. These effects could be related to the bioactive molecules and secondary metabolites like alkaloids and flavonoids in the plant. PMID- 29021760 TI - Saponins and Flavonoids from Adzuki Bean (Vigna angularis L.) Ameliorate High-Fat Diet-Induced Obesity in ICR Mice. AB - Background and purpose: As an herbal medicine, adzuki bean has been practiced since the Tang Dynasty of China to maintain health and control weight; this practice is still very popular in China nowadays. However, it is still lack of sufficient scientific basis to explain scientific principle of this popular civil practice in weight control using adzuki bean. The purpose of this study was to verify and explain the anti-obesity effects of adzuki bean through in vitro enzymatic assays, in vitro lipolysis and in vivo study of obese mice model. Methods: Inhibitory effects of flavonoids and saponins from adzuki bean (Vigna angularis) on pancreatic lipase, alpha-glucosidase activities, and noradrenaline induced lipolysis were assessed. High-fat diet-induced obesity model was created to study anti-obesity effects of adzuki bean. Both serum and liver lipid parameters were determined after 8 weeks intervention. Results: Adzuki bean extracts enhanced lipolysis. Compared to the final body weight of high-fat diet group, oral administration of adzuki bean significantly (p < 0.05) reduced the final body weight of mice and adipose tissue accumulation. The adzuki bean intervention also significantly reduced the levels of serum triglyceride, total cholesterol, low density lipoprotein-cholesterol, and liver lipid. Conclusion: Adzuki bean demonstrated the anti-obesity effects on mice, such effects may mediated through the inhibitory effects of flavonoids and saponins from adzuki bean on alpha-glucosidase and pancreatic lipase activities, and lipolysis enhancement effect of active components from adzuki bean. PMID- 29021761 TI - Protective Effects of Sodium (+/-)-5-Bromo-2-(alpha-Hydroxypentyl) Benzoate in a Rodent Model of Global Cerebral Ischemia. AB - The aim of the current study was to explore the protective effects of sodium (+/ )-5-bromo-2-(alpha-hydroxypentyl) benzoate (brand name: brozopine, BZP) in a rat model of global cerebral ischemia. The rat model was established using a modified Winocur's method; close postoperative observation was conducted at all times. Neurological function was detected through prehensile traction and beam-walking test. BZP reduced mortality and prolonged the survival time of rats with global cerebral ischemia, within 24 h. There was a decreased survival rate (60%) in the Model group, while the survival rate of the BZP (3 and 12 mg/kg) remarkably increased the survival rate (to 80 and 90%, respectively), in a dose-dependent manner. Compared with the Model group (survival time: 18.50 h), the administration of BZP (0.75, 3, and 12 mg/kg) prolonged the survival time (to 20.38, 21.85, and 23.90 h, respectively), particularly in BZP 12 mg/kg group (P < 0.05). Additionally, the BZP (12 mg/kg) group exhibited an improvement in their motor function (P < 0.05). The BZP groups (0.75, 3, and 12 mg/kg) displayed significantly reduced necrosis and the percentage of apoptotic cells (P < 0.05 and P < 0.01, respectively). Compared with Model group, BZP (0.75, 3, and 12 mg/kg) increased the NeuN optical density values (P < 0.01). Rats with global ischemia had a high expression of Cyt-c, caspase-3, and the Bax/Bcl-2 ratio compared with sham group (P < 0.01). BZP (0.75, 3, and 12 mg/kg), however, reduced the expression of Cyt-c, caspase-3, and the Bax/Bcl-2 ratio, in a dose dependent manner (P < 0.01). There was low expression of p-Akt and PI3K in Model group, compared with the sham group (P < 0.01). Meanwhile, BZP (0.75, 3, and 12 mg/kg) increased the expression of p-Akt and PI3K in a dose-dependent manner (P < 0.01). We also found the expression of Cyt-c, caspase-3, Bax/Bcl-2 ratio, PI3K, p Akt, and comprehensive score were directly related. In conclusion, BZP had therapeutic potential and prevented stroke in rat model of global cerebral ischemia. The underlying mechanisms may be related to the inhibition of apoptosis and activation of the survival-signaling-pathway. PMID- 29021762 TI - Massage Alleviates Delayed Onset Muscle Soreness after Strenuous Exercise: A Systematic Review and Meta-Analysis. AB - Purpose: The purpose of this systematic review and meta-analysis was to evaluate the effects of massage on alleviating delayed onset of muscle soreness (DOMS) and muscle performance after strenuous exercise. Method: Seven databases consisting of PubMed, Embase, EBSCO, Cochrane Library, Web of Science, CNKI and Wanfang were searched up to December 2016. Randomized controlled trials (RCTs) were eligible and the outcomes of muscle soreness, performance (including muscle maximal isometric force (MIF) and peak torque) and creatine kinase (CK) were used to assess the effectiveness of massage intervention on DOMS. Results: Eleven articles with a total of 23 data points (involving 504 participants) satisfied the inclusion criteria and were pooled in the meta-analysis. The findings demonstrated that muscle soreness rating decreased significantly when the participants received massage intervention compared with no intervention at 24 h (SMD: -0.61, 95% CI: -1.17 to -0.05, P = 0.03), 48 h (SMD: -1.51, 95% CI: -2.24 to -0.77, P < 0.001), 72 h (SMD: -1.46, 95% CI: -2.59 to -0.33, P = 0.01) and in total (SMD: -1.16, 95% CI: -1.60 to -0.72, P < 0.001) after intense exercise. Additionally, massage therapy improved MIF (SMD: 0.56, 95% CI: 0.21-0.90, P = 0.002) and peak torque (SMD: 0.38, 95% CI: 0.04-0.71, P = 0.03) as total effects. Furthermore, the serum CK level was reduced when participants received massage intervention (SMD: -0.64, 95% CI: -1.04 to -0.25, P = 0.001). Conclusion: The current evidence suggests that massage therapy after strenuous exercise could be effective for alleviating DOMS and improving muscle performance. PMID- 29021763 TI - The Functional Role of Individual-Alpha Based Frontal Asymmetry in the Evaluation of Emotional Pictures: Evidence from Event-Related Potentials. AB - The perceptual processing of emotional stimuli is subject to the regulation of brain function. This study investigated whether frontal electroencephalography (EEG) alpha asymmetry at resting conditions predicted the evaluation of emotional picture stimuli by event-related potentials (ERPs). In this study, participants first completed a 2-min resting task, and then passively viewed emotional pictures. The results showed that left active individuals had smaller frontal EEG alpha asymmetry scores to negative pictures than to positive and neutral pictures, whereas right active individuals had similar frontal EEG alpha asymmetry scores to negative, positive, and neutral pictures. Furthermore, the study showed a larger P300 to negative pictures than to positive and neutral pictures for left active individuals; however, there were no significant ERP differences to negative, positive, and neutral pictures for right active individuals. These findings suggest that frontal EEG alpha asymmetry at resting conditions can reflect interindividual differences in emotional perception tendencies to emotional picture stimuli. PMID- 29021764 TI - Multicomponent Intervention for Patients Admitted to an Emergency Unit for Suicide Attempt: An Exploratory Study. AB - Suicide is a major cause of premature deaths worldwide and belongs to the top priority public health issues. While suicide attempt is the most important risk factor for completed suicide, intervention for suicide attempters (SA) have produced mixed results. Since an important proportion of SA request medical care, emergency units (EU) are an opportune setting to implement such interventions. This exploratory study evaluated the feasibility and acceptability of a multicomponent intervention for SA admitted to an EU. The intervention consisted of coordination by a case manager of a joint crisis plan (JCP), an early meeting with relatives and the existing care network, as well as phone contacts during 3 months after suicide attempt. Among 107 SA admitted to the emergency unit during the study period, 51 could not be included for logistical reason, 22 were excluded, and intervention was offered to 34. Of these, 15 refused the intervention, which was thus piloted with 19 SA. First-time attempters most frequently declined the intervention. Feasibility and acceptability of phone contacts and case manager were good, while JCPs and meetings were difficult to implement and perceived as less acceptable. Refusal pattern questions the global acceptability and is discussed: JCPs and meetings will have to be modified in order to improve their feasibility and acceptability, especially among first-time attempters. PMID- 29021767 TI - Editorial: Social Cognition, Motivation, and Interaction: How Do People Respond to Threats in Social Interactions? PMID- 29021766 TI - A Randomized Controlled Trial on Functional Relaxation as an Adjunct to Psychoeducation for Stress. AB - This randomized controlled trial investigated whether adding the psychodynamically based body-oriented psychotherapy "Functional Relaxation" (FR) to psychoeducation (PE) is more effective than PE alone to reduce stress and stress-associated complaints. Eighty-one participants with elevated stress levels, >=50 points on the global scale of the Perceived Stress Questionnaire (PSQ), received either 10 sessions of manualized FR + PE (n = 42) or two sessions of manualized PE alone (n = 39) in a group setting. Six FR trainers took part in this study. Stress-level (PSQ) was the primary outcome and secondary outcomes were depression (PHQ-9) and somatization (PHQ-15). Multilevel models for discontinuous change revealed that FR + PE was more helpful to reduce stress levels than PE from pre-treatment to post-treatment (t0 -> t1) as well as from pre-treatment to 6-month follow-up (t0 -> t2) (both p < 0.05) with effect sizes (d) being medium for PE (dt0 -> t1 = 0.57; dt0 -> t2 = 0.67) and large for FR + PE (dt0 -> t1 = 1.57; dt0 -> t2 = 1.39). Moreover, FR + PE affected depression and somatization more positively than did PE from t0 to t1 as well as from t0 to t2 (all p < 0.05). Effect sizes for depression were small to medium for PE (dt0 > t1 = 0.52; dt0 -> t2 = 0.37) and large for FR + PE (dt0 -> t1 = 1.04; dt0 -> t2 = 0.95). Effect sizes for somatization were small for PE (dt0 -> t1 = 0.18; dt0 > t2 = 0.19) and medium to large for FR + PE (dt0 -> t1 = 0.73; dt0 -> t2 = 0.93). In summary, the combination of FR and PE was more effective than PE alone. The results of the present trial provide first evidence of FR as a potent component of stress interventions. Adding FR to such interventions might better help prevent clinically relevant disorders such as depression or somatization. PMID- 29021765 TI - Enhancing Neuroplasticity to Augment Cognitive Remediation in Schizophrenia. AB - There is a burgeoning need for innovative treatment strategies to improve the cognitive deficits in schizophrenia. Cognitive remediation (CR) is effective at the group level, but the variability in treatment response is large. Given that CR may depend on intact neuroplasticity to produce cognitive gains, it is reasonable to combine it with strategies that harness patients' neuroplastic potential. In this review, we discuss two non-pharmacological approaches that can enhance neuroplasticity and possibly augment the effects of CR in schizophrenia: physical exercise and transcranial direct current stimulation (tDCS). Substantial body of evidence supports the beneficial effect of physical exercise on cognition, and a handful of studies in schizophrenia have shown that physical exercise in conjunction with CR has a larger impact on cognition than CR alone. Physical exercise is thought to stimulate neuroplasticity through the regulation of central growth factors, and current evidence points to brain-derived neurotrophic factor as the potential underlying mechanism through which physical exercise might enhance the effectiveness of CR. tDCS has emerged as a potential tool for cognitive enhancement and seems to affect the cellular mechanisms involved in long-term potentiation (LTP). A few reports have demonstrated the feasibility of integrating tDCS with CR in schizophrenia, but there are insufficient data to determine if this multimodal approach leads to incremental performance gain in patients. Larger randomized controlled trials are necessary to understand the mechanisms of the combined tDCS-CR intervention. Future research should take advantage of new developments in neuroplasticity paradigms to examine the effects of these interventions on LTP. PMID- 29021768 TI - Endogenous Oxytocin, Vasopressin, and Aggression in Domestic Dogs. AB - Aggressive behavior in dogs poses public health and animal welfare concerns, however the biological mechanisms regulating dog aggression are not well understood. We investigated the relationships between endogenous plasma oxytocin (OT) and vasopressin (AVP)-neuropeptides that have been linked to affiliative and aggressive behavior in other mammalian species-and aggression in domestic dogs. We first validated enzyme-linked immunosorbent assays (ELISAs) for the measurement of free (unbound) and total (free + bound) OT and AVP in dog plasma. In Experiment 1 we evaluated behavioral and neuroendocrine differences between a population of pet dogs with a history of chronic aggression toward conspecifics and a matched control group. Dogs with a history of aggression exhibited more aggressive behavior during simulated encounters with conspecifics, and had lower free, but higher total plasma AVP than matched controls, but there were no group differences for OT. In Experiment 2 we compared OT and AVP concentrations between pet dogs and a population of assistance dogs that have been bred for affiliative and non-aggressive temperaments, and investigated neuroendocrine predictors of individual differences in social behavior within the assistance dog population. Compared to pet dogs, assistance dogs had higher free and total OT, but there were no differences in either measure for AVP. Within the assistance dog population, dogs who behaved more aggressively toward a threatening stranger had higher total AVP than dogs who did not. Collectively these data suggest that endogenous OT and AVP may play critical roles in shaping dog social behavior, including aspects of both affiliation and aggression. PMID- 29021770 TI - The Differential Effects of Mindfulness and Distraction on Affect and Body Satisfaction Following Food Consumption. AB - This study investigated whether engaging in mindfulness following food consumption produced changes in affect and body satisfaction, as compared to a control distraction task. The moderating effects of eating pathology and neuroticism were also examined. A total of 110 female university students consumed food and water before engaging in either a mindfulness induction or a control distraction task. Participants completed trait measures of eating pathology and neuroticism at baseline, and measures of state affect and body satisfaction before and after food consumption, and after the induction. Results revealed that consuming food and water reduced positive affect. Unexpectedly, both the mindfulness group and distraction control group experienced similar improvements in negative affect and body satisfaction following the induction. Eating pathology and neuroticism did not moderate the observed changes. These findings suggest that both mindfulness and distraction may contribute to the effectiveness of treatments for disordered eating that incorporate both of these techniques, such as Dialectical Behavior Therapy. PMID- 29021771 TI - Age-Based Positivity Effects in Imagining and Recalling Future Positive and Negative Autobiographical Events. AB - Thoughts about the future reflect personal goals, and projections into the future enrich our emotional life. Researchers have taken an interest in determining whether the tendency to remember more positive than negative emotional events observed when recalling past events also appears when remembering imagined future events. The objective of this study was to examine the age-based positivity effect of recall for future positive and negative autobiographical events in young and older adults. Representative future events were first established to develop the cues used to prompt personal future events. In the production task, the participants were presented with eight positive and eight negative random future events of young or older adults as a model and the corresponding cues to generate their own positive and negative future autobiographical events. In the recall task, the participants recovered as many experiences as they could of the model and the positive and negative events produced by themselves. The participants correctly recalled more positive than negative events and committed more errors for negative than positive events, showing a clear tendency in both young and older adults to recall future imagined events as positive. Regarding age, the young adults recalled more events than the older participants whilst the older participants in particular showed better recall of their own imagined future events than the model's events, and committed more errors when recalling the model's events than their own imagined events. Regarding the positivity effect in incorrect recall, more than half of the errors were valence changes, most of these being from negative to positive events, and these valence changes were more pronounced in the older than in the younger adults. In general, there were fewer differences between young and older adults in the recall of positive events in comparison with negative events. Our findings suggest that people are well disposed toward recalling positive imagined future events and preserve a positive emotional state, suppressing negative memories. PMID- 29021769 TI - Interpersonal Coordination: Methods, Achievements, and Challenges. AB - Research regarding interpersonal coordination can be traced back to the early 1960s when video recording began to be utilized in communication studies. Since then, technological advances have extended the range of techniques that can be used to accurately study interactional phenomena. Although such a diversity of methods contributes to the improvement of knowledge concerning interpersonal coordination, it has become increasingly difficult to maintain a comprehensive view of the field. In the present article, we review the main capture methods by describing their major findings, levels of description and limitations. We group them into three categories: video analysis, motion tracking, and psychophysiological and neurophysiological techniques. Revised evidence suggests that interpersonal coordination encompasses a family of morphological and temporal synchronies at different levels and that it is closely related to the construction and maintenance of a common social and affective space. We conclude by arguing that future research should address methodological challenges to advance the understanding of coordination phenomena. PMID- 29021772 TI - Incremental Theory of Intelligence Moderated the Relationship between Prior Achievement and School Engagement in Chinese High School Students. AB - School engagement plays a prominent role in promoting academic accomplishments. In contrast to the relative wealth of research that examined the impact of students' school engagement on their academic achievement, considerably less research has investigated the effect of high school students' prior achievement on their school engagement. The present study examined the relationship between prior achievement and school engagement among Chinese high school students. Based on the Dweck's social-cognitive theory of motivation, we further examined the moderating effect of students' theories of intelligence (TOIs) on this relationship. A total of 4036 (2066 girls) students from five public high school enrolled in grades 10 reported their high school entrance exam achievement in Chinese, Math and English, school engagement, and TOIs. Results showed that (a) students' prior achievement predicted their behavioral, emotional, and cognitive engagement, respectively, and (b) the association between prior achievement and behavioral, emotional, and cognitive engagement is strong for students with an incremental theory but not for those with an entity theory in the emotional and cognitive engagement. These findings suggest that prior achievement and incremental theory were implicated in relation to adolescents' school engagement. Implications and future research directions were discussed. PMID- 29021773 TI - The Grand Challenges for Evolutionary Psychology: Survival Challenges for a Discipline. PMID- 29021775 TI - Cardiac Findings in Amyotrophic Lateral Sclerosis: A Magnetic Resonance Imaging Study. AB - The objective of this study was to investigate the potential involvement of cardiac structure and function by cardiac magnetic resonance (CMR) imaging in amyotrophic lateral sclerosis (ALS) patients. Our study included 35 patients with ALS without a history of cardiac disease and an age- and gender-matched healthy control group (n = 34). All subjects received a CMR in a 1.5-T whole-body scanner. Patients were also screened with Holter monitoring, echocardiography, and a blood test of cardiac markers. Myocardial mass in ALS hearts was reduced compared to the control group, and ejection volumes in the left and right heart were severely decreased in ALS patients, as shown by echocardiography and CMR. The myocardium showed increased T1 enhancement in 77% of the patients compared to 27% of controls (p = 0.0001). A trend toward late gadolinium enhancement patterns consistent with myocardial fibrosis was observed in 23.5% of the patients (9.1% of controls). Holter monitoring was normal in all patients as well as troponin T. Cardiac involvement seems to be present in ALS patients without clinical cardiac symptoms and with a normal cardiac routine assessment. Structural myocardial defects in CMR may be due to sympathetic dysfunction and may account for reported cardiac deaths in late-stage ALS patients. PMID- 29021776 TI - Sex Differences in rt-PA Utilization at Hospitals Treating Stroke: The National Inpatient Sample. AB - BACKGROUND AND PURPOSE: Sex and race disparities in recombinant tissue plasminogen activator (rt-PA) use have been reported. We sought to explore sex and race differences in the utilization of rt-PA at primary stroke centers (PSCs) compared to non-PSCs across the US. METHODS: Data from the National (Nationwide) Inpatient Sample (NIS) 2004-2010 was utilized to assess sex differences in treatment for ischemic stroke in PSCs compared to non-PSCs. RESULTS: There were 304,152 hospitalizations with a primary diagnosis of ischemic stroke between 2004 and 2010 in the analysis: 75,160 (24.7%) patients were evaluated at a PSC. A little over half of the patients evaluated at PSCs were female (53.8%). A lower proportion of women than men received rt-PA at both PSCs (6.8 vs. 7.5%, p < 0.001) and non-PSCs (2.3 vs. 2.8%, p < 0.001). After adjustment for potential confounders the odds of being treated with rt-PA remained lower for women regardless of presentation to a PSC (OR 0.87, 95% CI 0.81-0.94) or non-PSC (OR 0.88, 95% CI 0.82-0.94). After stratifying by sex and race, the lowest absolute treatment rates were observed in black women (4.4% at PSC, 1.9% at non-PSC). The odds of treatment, relative to white men, was however lowest for white women (PSC OR = 0.85, 95% CI 0.78-0.93; non-PSC OR = 0.80, 95% CI 0.75-0.85). In the multivariable model, sex did not modify the effect of PSC certification on rt-PA utilization (p-value for interaction = 0.58). CONCLUSION: Women are less likely to receive rt-PA than men at both PSCs and non-PSCs. Absolute treatment rates are lowest in black women, although the relative difference in men and women was greatest for white women. PMID- 29021774 TI - Corrigendum: Marital Satisfaction, Sex, Age, Marriage Duration, Religion, Number of Children, Economic Status, Education, and Collectivistic Values: Data from 33 Countries. AB - [This corrects the article on p. 1199 in vol. 8, PMID: 28785230.]. PMID- 29021777 TI - Circulating Cholesterol Levels May Link to the Factors Influencing Parkinson's Risk. AB - OBJECTIVES: A growing literature suggests that circulating cholesterol levels have been associated with Parkinson's disease (PD). In this study, we investigated a possible causal basis for the cholesterol-PD link. METHODS: Fasting plasma cholesterol levels were obtained from 91 PD and 70 age- and gender matched controls from an NINDS PD Biomarkers Program cohort at the Pennsylvania State University College of Medicine. Based on the literature, genetic polymorphisms in selected cholesterol management genes (APOE, LDLR, LRP1, and LRPAP1) were chosen as confounding variables because they may influence both cholesterol levels and PD risk. First, the marginal structure model was applied, where the associations of total- and LDL-cholesterol levels with genetic polymorphisms, statin usage, and smoking history were estimated using linear regression. Then, potential causal influences of total- and LDL-cholesterol on PD occurrence were investigated using a generalized propensity score approach in the second step. RESULTS: Both statins (p < 0.001) and LRP1 (p < 0.03) influenced total- and LDL-cholesterol levels. There also was a trend for APOE to affect total- and LDL-cholesterol (p = 0.08 for both), and for LRPAR1 to affect LDL cholesterol (p = 0.05). Conversely, LDLR did not influence plasma cholesterol levels (p > 0.19). Based on propensity score methods, lower total- and LDL cholesterol were significantly linked to PD (p < 0.001 and p = 0.04, respectively). CONCLUSION: The current study suggests that circulating total- and LDL-cholesterol levels potentially may be linked to the factor(s) influencing PD risk. Further studies to validate these results would impact our understanding of the role of cholesterol as a risk factor in PD, and its relationship to recent public health controversies. PMID- 29021778 TI - The Combined Quantification and Interpretation of Multiple Quantitative Magnetic Resonance Imaging Metrics Enlightens Longitudinal Changes Compatible with Brain Repair in Relapsing-Remitting Multiple Sclerosis Patients. AB - OBJECTIVE: Quantitative and semi-quantitative MRI (qMRI) metrics provide complementary specificity and differential sensitivity to pathological brain changes compatible with brain inflammation, degeneration, and repair. Moreover, advanced magnetic resonance imaging (MRI) metrics with overlapping elements amplify the true tissue-related information and limit measurement noise. In this work, we combined multiple advanced MRI parameters to assess focal and diffuse brain changes over 2 years in a group of early-stage relapsing-remitting MS patients. METHODS: Thirty relapsing-remitting MS patients with less than 5 years disease duration and nine healthy subjects underwent 3T MRI at baseline and after 2 years including T1, T2, T2* relaxometry, and magnetization transfer imaging. To assess longitudinal changes in normal-appearing (NA) tissue and lesions, we used analyses of variance and Bonferroni correction for multiple comparisons. Multivariate linear regression was used to assess the correlation between clinical outcome and multiparametric MRI changes in lesions and NA tissue. RESULTS: In patients, we measured a significant longitudinal decrease of mean T2 relaxation times in NA white matter (p = 0.005) and a decrease of T1 relaxation times in the pallidum (p < 0.05), which are compatible with edema reabsorption and/or iron deposition. No longitudinal changes in qMRI metrics were observed in controls. In MS lesions, we measured a decrease in T1 relaxation time (p-value < 2.2e-16) and a significant increase in MTR (p-value < 1e-6), suggesting repair mechanisms, such as remyelination, increased axonal density, and/or a gliosis. Last, the evolution of advanced MRI metrics-and not changes in lesions or brain volume-were correlated to motor and cognitive tests scores evolution (Adj-R2 > 0.4, p < 0.05). In summary, the combination of multiple advanced MRI provided evidence of changes compatible with focal and diffuse brain repair at early MS stages as suggested by histopathological studies. PMID- 29021779 TI - Xenon Reduces Neuronal Hippocampal Damage and Alters the Pattern of Microglial Activation after Experimental Subarachnoid Hemorrhage: A Randomized Controlled Animal Trial. AB - OBJECTIVE: The neuroprotective properties of the noble gas xenon have already been demonstrated using a variety of injury models. Here, we examine for the first time xenon's possible effect in attenuating early brain injury (EBI) and its influence on posthemorrhagic microglial neuroinflammation in an in vivo rat model of subarachnoid hemorrhage (SAH). METHODS: Sprague-Dawley rats (n = 22) were randomly assigned to receive either Sham surgery (n = 9; divided into two groups) or SAH induction via endovascular perforation (n = 13, divided into two groups). Of those randomized for SAH, 7 animals were postoperatively ventilated with 50 vol% oxygen/50 vol% xenon for 1 h and 6 received 50 vol% oxygen/50 vol% nitrogen (control). The animals were sacrificed 24 h after SAH. Of each animal, a cerebral coronal section (-3.60 mm from bregma) was selected for assessment of histological damage 24 h after SAH. A 5-point neurohistopathological severity score was applied to assess neuronal cell damage in H&E and NeuN stained sections in a total of four predefined anatomical regions of interest. Microglial activation was evaluated by a software-assisted cell count of Iba-1 stained slices in three cortical regions of interest. RESULTS: A diffuse cellular damage was apparent in all regions of the ipsilateral hippocampus 24 h after SAH. Xenon treated animals presented with a milder damage after SAH. This effect was found to be particularly pronounced in the medial regions of the hippocampus, CA3 (p = 0.040), and dentate gyrus (DG p = 0.040). However, for the CA1 and CA2 regions, there were no statistical differences in neuronal damage according to our histological scoring. A cell count of activated microglia was lower in the cortex of xenon-treated animals. This difference was especially apparent in the left piriform cortex (p = 0.017). CONCLUSION: In animals treated with 50 vol% xenon (for 1 h) after SAH, a less pronounced neuronal damage was observed for the ipsilateral hippocampal regions CA3 and DG, when compared to the control group. In xenon-treated animals, a lower microglial cell count was observed suggesting an immunomodulatory effect generated by xenon. As for now, these results cannot be generalized as only some hippocampal regions are affected. Future studies should assess the time and localization dependency of xenon's beneficial properties after SAH. PMID- 29021780 TI - Chronic 5-Aminoimidazole-4-Carboxamide-1-beta-d-Ribofuranoside Treatment Induces Phenotypic Changes in Skeletal Muscle, but Does Not Improve Disease Outcomes in the R6/2 Mouse Model of Huntington's Disease. AB - Huntington's disease (HD) is an autosomal dominant neurodegenerative genetic disorder characterized by motor, cognitive, and psychiatric symptoms. It is well established that regular physical activity supports brain health, benefiting cognitive function, mental health as well as brain structure and plasticity. Exercise mimetics (EMs) are a group of drugs and small molecules that target signaling pathways in skeletal muscle known to be activated by endurance exercise. The EM 5-aminoimidazole-4-carboxamide-1-beta-d-ribofuranoside (AICAR) has been shown to induce cognitive benefits in healthy mice. Since AICAR does not readily cross the blood-brain barrier, its beneficial effect on the brain has been ascribed to its impact on skeletal muscle. Our objective, therefore, was to examine the effect of chronic AICAR treatment on the muscular and neurological pathology in a mouse model of HD. To this end, R6/2 mice were treated with AICAR for 8 weeks and underwent regular neurobehavioral testing. Under our conditions, AICAR increased expression of PGC-1alpha, a powerful phenotypic modifier of muscle, and induced the expected shift toward a more oxidative muscle phenotype in R6/2 mice. However, this treatment failed to induce benefits on HD progression. Indeed, neurobehavioral deficits, striatal, and muscle mutant huntingtin aggregate density, as well as muscle atrophy were not mitigated by the chronic administration of AICAR. Although the muscle adaptations seen in HD mice following AICAR treatment may still provide therapeutically relevant benefits to patients with limited mobility, our findings indicate that under our experimental conditions, AICAR had no effect on several hallmarks of HD. PMID- 29021782 TI - Functional Diversity of Fungal Communities in Soil Contaminated with Diesel Oil. AB - The widespread use and consumption of crude oil draws the public's attention to the fate of petroleum hydrocarbons in the environment, as they can permeate the soil environment in an uncontrollable manner. Contamination of soils with petroleum products, including diesel oil (DO), can cause changes in the microbiological soil properties. The effect of diesel oil on the functional diversity of fungi was tested in a model experiment during 270 days. Fungi were isolated from soil and identified. The functional diversity of fungal communities was also determined. Fungi were identified with the MALDI-TOF method, while the functional diversity was determined using FF-plates made by Biolog(r), with 95 carbon sources. Moreover, the diesel oil degradation dynamics was assessed. The research showed that soil contaminated with diesel oil is characterized by a higher activity of oxireductases and a higher number of fungi than soil not exposed to the pressure of this product. The DO pollution has an adverse effect on the diversity of fungal community. This is proved by significantly lower values of the Average Well-Color Development, substrates Richness (R) and Shannon Weaver (H) indices at day 270 after contamination. The consequences of DO affecting soil not submitted to remediation are persistent. After 270 days, only 64% of four-ringed, 28% of five-ringed, 21% of 2-3-ringed and 16% of six-ringed PAHs underwent degradation. The lasting effect of DO on communities of fungi led to a decrease in their functional diversity. The assessment of the response of fungi to DO pollution made on the basis of the development of colonies on Petri dishes [Colony Development (CD) and Eco-physiological Diversity (EP) indices] is consistent with the analysis based on the FF MicroPlate system by Biolog(r). Thus, a combination of the FF MicroPlate system by Biolog(r) with the simultaneous calculation of CD and EP indices alongside the concurrent determination of the content of PAHs and activity of oxireductases provides an opportunity to achieve relatively complete characterization of the consequences of a long-term impact of diesel oil on soil fungi. PMID- 29021783 TI - Extracellular Polymeric Substance Production and Aggregated Bacteria Colonization Influence the Competition of Microbes in Biofilms. AB - The production of extracellular polymeric substance (EPS) is important for the survival of biofilms. However, EPS production is costly for bacteria and the bacterial strains that produce EPS (EPS+) grow in the same environment as non producers (EPS-) leading to competition between these strains for nutrients and space. The outcome of this competition is likely to be dependent on factors such as initial attachment, EPS production rate, ambient nutrient levels and quorum sensing. We use an Individual-based Model (IbM) to study the competition between EPS+ and EPS- strains by varying the nature of initial colonizers which can either be in the form of single cells or multicellular aggregates. The microbes with EPS+ characteristics obtain a competitive advantage if they initially colonize the surface as smaller aggregates and are widely spread-out between the cells of EPS-, when both are deposited on the substratum. Furthermore, the results show that quorum sensing-regulated EPS production may significantly reduce the fitness of EPS producers when they initially deposit as aggregates. The results provide insights into how the distribution of bacterial aggregates during initial colonization could be a deciding factor in the competition among different strains in biofilms. PMID- 29021784 TI - Synthetic Peptides to Target Stringent Response-Controlled Virulence in a Pseudomonas aeruginosa Murine Cutaneous Infection Model. AB - Microorganisms continuously monitor their surroundings and adaptively respond to environmental cues. One way to cope with various stress-related situations is through the activation of the stringent stress response pathway. In Pseudomonas aeruginosa this pathway is controlled and coordinated by the activity of the RelA and SpoT enzymes that metabolize the small nucleotide secondary messenger molecule (p)ppGpp. Intracellular ppGpp concentrations are crucial in mediating adaptive responses and virulence. Targeting this cellular stress response has recently been the focus of an alternative approach to fight antibiotic resistant bacteria. Here, we examined the role of the stringent response in the virulence of P. aeruginosa PAO1 and the Liverpool epidemic strain LESB58. A DeltarelA/DeltaspoT double mutant showed decreased cytotoxicity toward human epithelial cells, exhibited reduced hemolytic activity, and caused down regulation of the expression of the alkaline protease aprA gene in stringent response mutants grown on blood agar plates. Promoter fusions of relA or spoT to a bioluminescence reporter gene revealed that both genes were expressed during the formation of cutaneous abscesses in mice. Intriguingly, virulence was attenuated in vivo by the DeltarelA/DeltaspoT double mutant, but not the relA mutant nor the DeltarelA/DeltaspoT complemented with either gene. Treatment of a cutaneous P. aeruginosa PAO1 infection with anti-biofilm peptides increased animal welfare, decreased dermonecrotic lesion sizes, and reduced bacterial numbers recovered from abscesses, resembling the phenotype of the DeltarelA/DeltaspoT infection. It was previously demonstrated by our lab that ppGpp could be targeted by synthetic peptides; here we demonstrated that spoT promoter activity was suppressed during cutaneous abscess formation by treatment with peptides DJK-5 and 1018, and that a peptide-treated relA complemented stringent response double mutant strain exhibited reduced peptide susceptibility. Overall these data strongly indicated that synthetic peptides target the P. aeruginosa stringent response in vivo and thus offer a promising novel therapeutic approach. PMID- 29021785 TI - Amino Acid Sensor Kinase Gcn2 Is Required for Conidiation, Secondary Metabolism, and Cell Wall Integrity in the Taxol-Producer Pestalotiopsis microspora. AB - The canonical Gcn2/Cpc1 kinase in fungi coordinates the expression of target genes in response to amino acid starvation. To investigate its possible role in secondary metabolism, we characterized a gcn2 homolog in the taxol-producing fungus Pestalotiopsis microspora. Deletion of the gene led to severe physiological defects under amino acid starvation, suggesting a conserved function of gcn2 in amino acid sensing. The mutant strain Deltagcn2 displayed retardation in vegetative growth. It generated dramatically fewer conidia, suggesting a connection between amino acid metabolism and conidiation in this fungus. Importantly, disruption of the gene altered the production of secondary metabolites by HPLC profiling. For instance, under amino acid starvation, the deletion strain Deltagcn2 barely produced secondary metabolites including the known natural product pestalotiollide B. Even more, we showed that gcn2 played critical roles in the tolerance to several stress conditions. Deltagcn2 exhibited a hypersensitivity to Calcofluor white and Congo red, implying a role of Gcn2 in maintaining the integrity of the cell wall. This study suggests that Gcn2 kinase is an important global regulator in the growth and development of filamentous fungi and will provide knowledge for the manipulation of secondary metabolism in P. microspora. PMID- 29021781 TI - Cross Talk between Adipose Tissue and Placenta in Obese and Gestational Diabetes Mellitus Pregnancies via Exosomes. AB - Obesity is an important public health issue worldwide, where it is commonly associated with the development of metabolic disorders, especially insulin resistance (IR). Maternal obesity is associated with an increased risk of pregnancy complications, especially gestational diabetes mellitus (GDM). Metabolism is a vital process for energy production and the maintenance of essential cellular functions. Excess energy storage is predominantly regulated by the adipose tissue. Primarily made up of adipocytes, adipose tissue acts as the body's major energy reservoir. The role of adipose tissue, however, is not restricted to a "bag of fat." The adipose tissue is an endocrine organ, secreting various adipokines, enzymes, growth factors, and hormones that take part in glucose and lipid metabolism. In obesity, the greater portion of the adipose tissue comprises fat, and there is increased pro-inflammatory cytokine secretion, macrophage infiltration, and reduced insulin sensitivity. Obesity contributes to systemic IR and its associated metabolic complications. Similar to adipose tissue, the placenta is also an endocrine organ. During pregnancy, the placenta secretes various molecules to maintain pregnancy physiology. In addition, the placenta plays an important role in metabolism and exchange of nutrients between mother and fetus. Inflammation at the placenta may contribute to the severity of maternal IR and her likelihood of developing GDM and may also mediate the adverse consequences of obesity and GDM on the fetus. Interestingly, studies on maternal insulin sensitivity and secretion of placental hormones have not shown a positive correlation between these phenomena. Recently, a great interest in the field of extracellular vesicles (EVs) has been observed in the literature. EVs are produced by a wide range of cells and are present in all biological fluids. EVs are involved in cell-to-cell communication. Recent evidence points to an association between adipose tissue-derived EVs and metabolic syndrome in obesity. In this review, we will discuss the changes in human placenta and adipose tissue in GDM and obesity and summarize the findings regarding the role of adipose tissue and placenta-derived EVs, with an emphasis on exosomes in obesity, and the contribution of obesity to the development of GDM. PMID- 29021786 TI - A New Role for Helicobacter pylori Urease: Contributions to Angiogenesis. AB - Helicobacter pylori is a pathogen involved in gastric diseases such as ulcers and carcinomas. H. pylori's urease is an important virulence factor produced in large amounts by this bacterium. In previous studies, we have shown that this protein is able to activate several cell types like neutrophils, monocytes, platelets, endothelial cells, and gastric epithelial cells. Angiogenesis is a physiological process implicated in growth, invasion and metastization of tumors. Here, we have analyzed the angiogenic potential of H. pylori urease (HPU) in gastric epithelial cells. No cytotoxicity was observed in AGS, Kato-III, and MKN28 gastric cell lines treated with 300 nM HPU, as evaluated by the 3-(4,5-Dimethylthiazol-2-yl) 2,5-diphenyltetrazolium bromide (MTT) assay. As we previously reported in neutrophils, treatment with 300 nM HPU also had an anti-apoptotic effect in gastric epithelial cells leading to a 2.2-fold increase in the levels of Bcl-XL after 6 h, and a decrease of 80% in the content of BAD, after 48 h, two mitochondrial proteins involved in regulation of apoptosis. Within 10 min of exposure, HPU is rapidly internalized by gastric epithelial cells. Treatment of the gastric cells with methyl-beta-cyclodextrin abolished HPU internalization suggesting a cholesterol-dependent process. HPU induces the expression of pro angiogenic factors and the decrease of expression of anti-angiogenic factors by AGS cells. The angiogenic activity of HPU was analyzed using in vitro and in vivo models. HPU induced formation of tube-like structures by human umbilical vascular endothelial cells in a 9 h experiment. In the chicken embryo chorioallantoic membrane model, HPU induced intense neo-vascularization after 3 days. In conclusion, our results indicate that besides allowing bacterial colonization of the gastric mucosa, H. pylori's urease triggers processes that initiate pro angiogenic responses in different cellular models. Thus, this bacterial urease, a major virulence factor, may also play a role in gastric carcinoma development. PMID- 29021787 TI - Integron Digestive Carriage in Human and Cattle: A "One Health" Cultivation Independent Approach. AB - Objectives: Dissemination of antimicrobial resistance (AMR) is a global issue that requires the adoption of a "One-Health" approach promoting integration of human and animal health. Besides culture-dependent techniques frequently used for AMR surveillance, cultivation-independent methods can give additional insights into the diversity and reservoir of AMR genetic determinants. Integrons are molecular markers that can provide overall and reliable estimation of AMR dissemination. In this study, considering the "One-Health" approach, we have analyzed the integron digestive carriage from stools of humans and cattle living in a same area and exposed to different antibiotic selection pressures. Methods: Three collections of human [general population (GP) and intensive care unit patients (ICUs)] and bovine (BOV) stool samples were analyzed. The three main classes of integrons were detected using a multiplex qPCR both from total DNA extracted from stools, and from Gram-negative bacteria obtained by culture after an enrichment step. Results: With the cultivation-independent approach, integron carriage was 43.8, 52.7, and 65.6% for GP, ICU, and BOV respectively, percentages being at least twofold higher to those obtained with the cultivation-dependent approach. Class 1 integrons were the most prevalent; class 2 integrons seemed more associated to cattle than to humans; no class 3 integron was detected. The integron carriage was not significantly different between GP and ICU populations according to the antibiotic consumption, whatever the approach. Conclusion: The cultivation-independent approach constitutes a complementary exploratory method to investigate the integron digestive carriage of humans and bovines, notably within subjects under antibiotic treatment. The high frequency of carriage of integrons in the gut is of clinical significance, integrons being able to easily acquire and exchange resistant genes under antibiotic selective pressure and so leading to the dissemination of resistant bacteria. PMID- 29021788 TI - MicroRNAs-Based Inter-Domain Communication between the Host and Members of the Gut Microbiome. AB - The gut microbiome is an important modulator of host gene expression, impacting important functions such as the innate immune response. Recent evidence suggests that the inter-domain communication between the gut microbiome and host may in part occur via microRNAs (small, non-coding RNA molecules) which are often differentially expressed in the presence of bacteria and can even be released and taken up by bacteria. The role of microRNAs in microbiome-host communication in intestinal diseases is not fully understood, particularly in diseases impacted by exposure to environmental toxicants. Here, we review the present knowledge in the areas of microbiome and microRNA expression-based communication, microbiome and intestinal disease relationships, and microRNA expression responses to intestinal diseases. We also examine potential links between host microRNA-microbiota communication and exposure to environmental toxicants by reviewing connections between (i) toxicants and microRNA expression, (ii) toxicants and gut diseases, and (iii) toxicants and the gut microbiome. Future multidisciplinary research in this area is needed to uncover these interactions with the potential to impact how gut-microbiome associated diseases [e.g., inflammatory bowel disease (IBD) and many others] are managed. PMID- 29021789 TI - The Endophytic Symbiont-Pseudomonas aeruginosa Stimulates the Antioxidant Activity and Growth of Achyranthes aspera L. AB - A plant growth promoting bacterial endophyte designated as AL2-14B isolated from the leaves of Achyranthes aspera L. was identified as Pseudomonas aeruginosa based on its phenotypic and physiological features, and 16S rRNA gene sequence analysis. AL2-14B had plant growth stimulating attributes including siderophore and indole acetic acid release, inorganic phosphate solubilization, along with nitrogenase, ammonification, and protease activities. It also exhibited antifungal property against Rhizoctonia solani. The plantlets grown in germ-free condition were inoculated with AL2-14B and studied for the colonization of endophyte. Significant increase in population of AL2-14B between 3rd and 5th days after inoculation was recorded. The treatment of plants with endophytic P. aeruginosa AL2-14B increased nitrogen, phosphorus, potassium (NPK) contents in plant by 3.8, 12.59, and 19.15%, respectively. Significant enhancement of shoot and root length, dry leaf, dry shoot and dry root weight, and leaf surface area as compared to control (P < 0.05) was recorded in AL2-14B inoculated plants. The antioxidant activities increased in plants grown in germ-free conditions and inoculated with AL2-14B. The present study emphasizes on the role of diazotrophic endophyte P. aeruginosa AL2-14B in stimulating growth of A. aspera L. and improvement of its medicinal properties. Significant increase in growth and antioxidant content of P. aeruginosa AL2-14B treated plants suggests the possibility of an economical and eco-friendly mean of achieving antioxidants rich, healthier A. aspera plants. PMID- 29021790 TI - Ammonia Oxidation and Nitrite Reduction in the Verrucomicrobial Methanotroph Methylacidiphilum fumariolicum SolV. AB - The Solfatara volcano near Naples (Italy), the origin of the recently discovered verrucomicrobial methanotroph Methylacidiphilum fumariolicum SolV was shown to contain ammonium ([Formula: see text]) at concentrations ranging from 1 to 28 mM. Ammonia (NH3) can be converted to toxic hydroxylamine (NH2OH) by the particulate methane monooxygenase (pMMO), the first enzyme of the methane (CH4) oxidation pathway. Methanotrophs rapidly detoxify the intermediate NH2OH. Here, we show that strain SolV performs ammonium oxidation to nitrite at a rate of 48.2 nmol [Formula: see text].h-1.mg DW-1 under O2 limitation in a continuous culture grown on hydrogen (H2) as an electron donor. In addition, strain SolV carries out nitrite reduction at a rate of 74.4 nmol [Formula: see text].h-1.mg DW-1 under anoxic condition at pH 5-6. This range of pH was selected to minimize the chemical conversion of nitrite ([Formula: see text]) potentially occurring at more acidic pH values. Furthermore, at pH 6, we showed that the affinity constants (K s ) of the cells for NH3 vary from 5 to 270 MUM in the batch incubations with 0.5-8% (v/v) CH4, respectively. Detailed kinetic analysis showed competitive substrate inhibition between CH4 and NH3. Using transcriptome analysis, we showed up-regulation of the gene encoding hydroxylamine dehydrogenase (haoA) cells grown on H2/[Formula: see text] compared to the cells grown on CH4/[Formula: see text] which do not have to cope with reactive N compounds. The denitrifying genes nirk and norC showed high expression in H2/[Formula: see text] and CH4/[Formula: see text] grown cells compared to cells growing at MUmax (with no limitation) while the norB gene showed downregulation in CH4/[Formula: see text] grown cells. These cells showed a strong upregulation of the genes in nitrate/nitrite assimilation. Our results demonstrate that strain SolV can perform ammonium oxidation producing nitrite. At high concentrations of ammonium this may results in toxic effects. However, at low oxygen concentrations strain SolV is able to reduce nitrite to N2O to cope with this toxicity. PMID- 29021792 TI - Corrigendum: Cross-Talk between Staphylococcus aureus and Other Staphylococcal Species via the agr Quorum Sensing System. AB - [This corrects the article on p. 1733 in vol. 7, PMID: 27877157.]. PMID- 29021791 TI - Cofactor Tail Length Modulates Catalysis of Bacterial F420-Dependent Oxidoreductases. AB - F420 is a microbial cofactor that mediates a wide range of physiologically important and industrially relevant redox reactions, including in methanogenesis and tetracycline biosynthesis. This deazaflavin comprises a redox-active isoalloxazine headgroup conjugated to a lactyloligoglutamyl tail. Here we studied the catalytic significance of the oligoglutamate chain, which differs in length between bacteria and archaea. We purified short-chain F420 (two glutamates) from a methanogen isolate and long-chain F420 (five to eight glutamates) from a recombinant mycobacterium, confirming their different chain lengths by HPLC and LC/MS analysis. F420 purified from both sources was catalytically compatible with purified enzymes from the three major bacterial families of F420-dependent oxidoreductases. However, long-chain F420 bound to these enzymes with a six- to ten-fold higher affinity than short-chain F420. The cofactor side chain also significantly modulated the kinetics of the enzymes, with long-chain F420 increasing the substrate affinity (lower Km) but reducing the turnover rate (lower kcat) of the enzymes. Molecular dynamics simulations and comparative structural analysis suggest that the oligoglutamate chain of F420 makes dynamic electrostatic interactions with conserved surface residues of the oxidoreductases while the headgroup binds the catalytic site. In conjunction with the kinetic data, this suggests that electrostatic interactions made by the oligoglutamate tail result in higher-affinity, lower-turnover catalysis. Physiologically, we propose that bacteria have selected for long-chain F420 to better control cellular redox reactions despite tradeoffs in catalytic rate. Conversely, this suggests that industrial use of shorter-length F420 will greatly increase the rates of bioremediation and biocatalysis processes relying on purified F420 dependent oxidoreductases. PMID- 29021793 TI - Intracellular Crosslinking of Filoviral Nucleoproteins with Xintrabodies Restricts Viral Packaging. AB - Viruses assemble large macromolecular repeat structures that become part of the infectious particles or virions. Ribonucleocapsids (RNCs) of negative strand RNA viruses are a prime example where repetition of nucleoprotein (NP) along the genome creates a core polymeric helical scaffold that accommodates other nucleocapsid proteins including viral polymerase. The RNCs are transported through the cytosol for packaging into virions through association with viral matrix proteins at cell membranes. We hypothesized that RNC would be ideal targets for crosslinkers engineered to promote aberrant protein-protein interactions, thereby blocking their orderly transport and packaging. Previously, we had generated single-domain antibodies (sdAbs) against Filoviruses that have all targeted highly conserved C-terminal regions of NP known to be repetitively exposed along the length of the RNCs of Marburgvirus (MARV) and Ebolavirus (EBOV). Our crosslinker design consisted of dimeric sdAb expressed intracellularly, which we call Xintrabodies (X- for crosslinking). Electron microscopy of purified NP polymers incubated with purified sdAb constructs showed NP aggregation occurred in a genus-specific manner with dimeric and not monomeric sdAb. A virus-like particle (VLP) assay was used for initial evaluation where we found that dimeric sdAb inhibited NP incorporation into VP40-based VLPs whereas monomeric sdAb did not. Inhibition of NP packaging was genus specific. Confocal microscopy revealed dimeric sdAb was diffuse when expressed alone but focused on pools of NP when the two were coexpressed, while monomeric sdAb showed ambivalent partition. Infection of stable Vero cell lines expressing dimeric sdAb specific for either MARV or EBOV NP resulted in smaller plaques and reduced progeny of cognate virus relative to wild-type Vero cells. Though the impact was marginal at later time-points, the collective data suggest that viral replication can be reduced by crosslinking intracellular NP using relatively small amounts of dimeric sdAb to restrict NP packaging. The stoichiometry and ease of application of the approach would likely benefit from transitioning away from intracellular expression of crosslinking sdAb to exogenous delivery of antibody. By retuning sdAb specificity, the approach of crosslinking highly conserved regions of assembly critical proteins may well be applicable to inhibiting replication processes of a broad spectrum of viruses. PMID- 29021795 TI - Neuroendocrine and Immune Responses Undertake Different Fates following Tryptophan or Methionine Dietary Treatment: Tales from a Teleost Model. AB - Methionine and tryptophan appear to be fundamental in specific cellular pathways involved in the immune response mechanisms, including stimulation of T-regulatory cells by tryptophan metabolites or pro-inflammatory effects upon methionine supplementation. Thus, the aim of this study was to evaluate the immunomodulatory effect of these amino acids on the inflammatory and neuroendocrine responses in juveniles of European seabass, Dicentrarchus labrax. To achieve this, goal fish were fed for 14 days methionine and tryptophan-supplemented diets (MET and TRP, respectively, 2* dietary requirement level) or a control diet meeting the amino acids requirement levels (CTRL). Fish were sampled for immune status assessment and the remaining fish were challenged with intraperitoneally injected inactivated Photobacterium damselae subsp. piscicida and sampled either 4 or 24 h post-injection. Respiratory burst activity, brain monoamines, plasma cortisol, and immune-related gene expression showed distinct and sometimes opposite patterns regarding the effects of dietary amino acids. While neuroendocrine intermediates were not affected by any dietary treatment at the end of the feeding trial, both supplemented diets led to increased levels of plasma cortisol after the inflammatory insult, while brain monoamine content was higher in TRP fed fish. Peripheral blood respiratory burst was higher in TRP-fed fish injected with the bacteria inoculum but only compared to those fed MET. However, no changes were detected in total antioxidant capacity. Complement factor 3 was upregulated in MET-fed fish but methionine seemed to poorly affect other genes expression patterns. In contrast, fish fed MET showed increased immune cells numbers both before and after immune challenge, suggesting a strong enhancing effect of methionine on immune cells proliferation. Differently, tryptophan effects on inflammatory transcripts suggested an inhibitory mode of action. This, together with a high production of brain monoamine and cortisol levels, suggests that tryptophan might mediate regulatory mechanisms of neuroendocrine and immune systems cooperation. Overall, more studies are needed to ascertain the role of methionine and tryptophan in modulating (stimulate or regulate) fish immune and neuroendocrine responses. PMID- 29021794 TI - CD95/Fas, Non-Apoptotic Signaling Pathways, and Kinases. AB - Endothelial cells lining new blood vessels that develop during inflammatory disorders or cancers act as doors that either allow or block access to the tumor or inflamed organ. Recent data show that these endothelial cells in cancer tissues and inflamed tissues of lupus patients overexpress CD95L, the biological role of which is a subject of debate. The receptor CD95 (also named Fas or apoptosis antigen 1) belongs to the tumor necrosis factor (TNF) receptor superfamily. Its cognate ligand, CD95L, is implicated in immune homeostasis and immune surveillance. Because mutations of this receptor or its ligand lead to autoimmune disorders such as systemic lupus erythematosus (SLE) and cancers, CD95 and CD95L were initially thought to play a role in immune homeostasis and tumor elimination via apoptotic signaling pathways. However, recent data reveal that CD95 also evokes non-apoptotic signals, promotes inflammation, and contributes to carcinogenesis; therefore, it is difficult to dissect its apoptotic effects from its non-apoptotic effects during pathogenesis of disease. CD95L is cleaved by metalloproteases and so exists in two different forms: a transmembrane form and a soluble ligand (s-CD95L). We recently observed that the soluble ligand is overexpressed in serum from patients with triple-negative breast cancer or SLE, in whom it contributes to disease severity by activating non-apoptotic signaling pathways and promoting either metastatic dissemination or accumulation of certain T cell subsets in damaged organs. Here, we discuss the roles of CD95 in modulating immune functions via induction of mainly non-apoptotic signaling pathways. PMID- 29021796 TI - Potassium in the Grape (Vitis vinifera L.) Berry: Transport and Function. AB - K+ is the most abundant cation in the grape berry. Here we focus on the most recent information in the long distance transport and partitioning of K+ within the grapevine and postulate on the potential role of K+ in berry sugar accumulation, berry water relations, cellular growth, disease resistance, abiotic stress tolerance and mitigating senescence. By integrating information from several different plant systems we have been able to generate new hypotheses on the integral functions of this predominant cation and to improve our understanding of how these functions contribute to grape berry growth and ripening. Valuable contributions to the study of K+ in membrane stabilization, turgor maintenance and phloem transport have allowed us to propose a mechanistic model for the role of this cation in grape berry development. PMID- 29021798 TI - QTLs and Potential Candidate Genes for Heat Stress Tolerance Identified from the Mapping Populations Specifically Segregating for Fv/Fm in Wheat. AB - Despite the fact that Fv/Fm (maximum quantum efficiency of photosystem II) is the most widely used parameter for a rapid non-destructive measure of stress detection in plants, there are barely any studies on the genetic understanding of this trait under heat stress. Our aim was to identify quantitative trait locus (QTL) and the potential candidate genes linked to Fv/Fm for improved photosynthesis under heat stress in wheat (Triticum aestivum L.). Three bi parental F2 mapping populations were generated by crossing three heat tolerant male parents (origin: Afghanistan and Pakistan) selected for high Fv/Fm with a common heat susceptible female parent (origin: Germany) selected for lowest Fv/Fm out of a pool of 1274 wheat cultivars of diverse geographic origin. Parents together with 140 F2 individuals in each population were phenotyped by Fv/Fm under heat stress (40 degrees C for 3 days) around anthesis. The Fv/Fm decreased by 6.3% in the susceptible parent, 1-2.5% in the tolerant parents and intermediately 4-6% in the mapping populations indicating a clear segregation for the trait. The three populations were genotyped with 34,955 DArTseq and 27 simple sequence repeat markers, out of which ca. 1800 polymorphic markers mapped to 27 linkage groups covering all the 21 chromosomes with a total genome length of about 5000 cM. Inclusive composite interval mapping resulted in the identification of one significant and heat-stress driven QTL in each population on day 3 of the heat treatment, two of which were located on chromosome 3B and one on chromosome 1D. These QTLs explained about 13-35% of the phenotypic variation for Fv/Fm with an additive effect of 0.002-0.003 with the positive allele for Fv/Fm originating from the heat tolerant parents. Approximate physical localization of these three QTLs revealed the presence of 12 potential candidate genes having a direct role in photosynthesis and/or heat tolerance. Besides providing an insight into the genetic control of Fv/Fm in the present study, the identified QTLs would be useful in breeding for heat tolerance in wheat. PMID- 29021797 TI - The Rice AAA-ATPase OsFIGNL1 Is Essential for Male Meiosis. AB - Meiosis is crucial in reproduction of plants and ensuring genetic diversity. Although several genes involved in homologous recombination and DNA repair have been reported, their functions in rice (Oryza sativa) male meiosis remain poorly understood. Here, we isolated and characterized the rice OsFIGNL1 (OsFidgetin like 1) gene, encoding a conserved AAA-ATPase, and explored its function and importance in male meiosis and pollen formation. The rice Osfignl1 mutant exhibited normal vegetative growth, but failed to produce seeds and displayed pollen abortion phenotype. Phenotypic comparisons between the wild-type and Osfignl1 mutant demonstrated that OsFIGNL1 is required for anther development, and that the recessive mutation of this gene causes male sterility in rice. Complementation and CRISPR/Cas9 experiments demonstrated that wild-type OsFIGNL1 is responsible for the male sterility phenotype. Subcellular localization showed that OsFIGNL1-green fluorescent protein was exclusively localized in the nucleus of rice protoplasts. Male meiosis in the Osfignl1 mutant exhibited abnormal chromosome behavior, including chromosome bridges and multivalent chromosomes at diakinesis, lagging chromosomes, and chromosome fragments during meiosis. Yeast two-hybrid assays demonstrated OsFIGNL1 could interact with RAD51A1, RAD51A2, DMC1A, DMC1B, and these physical interactions were further confirmed by BiFC assay. Taken together, our results suggest that OsFIGNL1 plays an important role in regulation of male meiosis and anther development. PMID- 29021799 TI - Improved Quantitative Plant Proteomics via the Combination of Targeted and Untargeted Data Acquisition. AB - Quantitative proteomics strategies - which are playing important roles in the expanding field of plant molecular systems biology - are traditionally designated as either hypothesis driven or non-hypothesis driven. Many of these strategies aim to select individual peptide ions for tandem mass spectrometry (MS/MS), and to do this mixed hypothesis driven and non-hypothesis driven approaches are theoretically simple to implement. In-depth investigations into the efficacies of such approaches have, however, yet to be described. In this study, using combined samples of unlabeled and metabolically 15N-labeled Arabidopsis thaliana proteins, we investigate the mixed use of targeted data acquisition (TDA) and data dependent acquisition (DDA) - referred to as TDA/DDA - to facilitate both hypothesis driven and non-hypothesis driven quantitative data collection in individual LC-MS/MS experiments. To investigate TDA/DDA for hypothesis driven data collection, 7 miRNA target proteins of differing size and abundance were targeted using inclusion lists comprised of 1558 m/z values, using 3 different TDA/DDA experimental designs. In samples in which targeted peptide ions were of particularly low abundance (i.e., predominantly only marginally above mass analyser detection limits), TDA/DDA produced statistically significant increases in the number of targeted peptides identified (230 +/- 8 versus 80 +/- 3 for DDA; p = 1.1 * 10-3) and quantified (35 +/- 3 versus 21 +/- 2 for DDA; p = 0.038) per experiment relative to the use of DDA only. These expected improvements in hypothesis driven data collection were observed alongside unexpected improvements in non-hypothesis driven data collection. Untargeted peptide ions with m/z values matching those in inclusion lists were repeatedly identified and quantified across technical replicate TDA/DDA experiments, resulting in significant increases in the percentages of proteins repeatedly quantified in TDA/DDA experiments only relative to DDA experiments only (33.0 +/- 2.6% versus 8.0 +/- 2.7%, respectively; p = 0.011). These results were observed together with uncompromised broad-scale MS/MS data collection in TDA/DDA experiments relative to DDA experiments. Using our observations we provide guidelines for TDA/DDA method design for quantitative plant proteomics studies, and suggest that TDA/DDA is a broadly underutilized proteomics data acquisition strategy. PMID- 29021800 TI - Strigolactones Improve Plant Growth, Photosynthesis, and Alleviate Oxidative Stress under Salinity in Rapeseed (Brassica napus L.) by Regulating Gene Expression. AB - Rapeseed (Brassica napus L.) is a very important edible oil crop in the world, and the production is inhibited by abiotic stresses, such as salinity. Plant hormones can alleviate the stress by regulating the physiological processes and gene expression. To study the plant responses to salinity in combination with GR24, a synthesized strigolactone, the oilseed rape variety (Zhongshuang 11) replications were grown in the pots in a controlled growth chamber under three levels of salinity (0, 100, and 200 mM NaCl) and 0.18 MUM GR24 treatments at the seedling stage for 7 days. The results showed that salinity depressed the shoots and roots growth, whereas GR24 improved the growth under salt stress. Leaf chlorophyll contents and gas exchange parameters (net photosynthetic rates, stomatal conductance, intercellular CO2 concentration, and transpiration rate) were also reduced significantly with increasing salinity, and these effects could be partially reversed by GR24 application. Additionally, GR24 treatment significantly increased and decreased the photosystem II quantum yield and non photochemical quenching, respectively, under salinity stress conditions. The activities of peroxidase and superoxide dismutase increased, and lipid peroxidation measured by the level of malondialdehyde reduced due to GR24 application. The transcriptome analysis of root and shoot was conducted. Three hundred and forty-two common differentially expressed genes (DEGs) after GR24 treatment and 166 special DEGs after GR24 treatment under salinity stress were identified in root and shoot. The DEGs in root were significantly more than that in shoot. Quantitative PCR validated that the stress alleviation was mainly related to the gene expression of tryptophan metabolism, plant hormone signal transduction, and photosynthesis. PMID- 29021802 TI - Genome-Wide Identification of Circular RNAs in Arabidopsis thaliana. AB - Circular RNAs (circRNAs) are a family of transcripts with covalently closed circular structures and still largely unknown functions. Large numbers of circRNAs have been found in various biological processes in humans and animals, but fewer circRNAs have been identified in plants. We performed a genome-wide analysis of circRNAs in Arabidopsis thaliana via deep sequencing. We constructed 14 strand-specific libraries from 13 samples of plants from four developmental stages, four stress treatments, and five organs and a mixed sample across the lifespan. In total, we identified 5861 circRNAs, including 1275 novel ones, using the strict threshold of at least two unique back-spliced supporting reads. The circRNAs were non-randomly distributed in all chromosomes; most were exonic. Sequence similarity analysis of circRNAs between A. thaliana and four other species showed that some circRNAs are conserved in plants. Functional annotation indicated that many parent genes of circRNAs are involved in many fundamental processes including plant development, reproduction, and response to stimulus. In addition, a small proportion of circRNAs was shown to be potential targets of miRNAs, indicating that the circRNAs could interact with miRNAs to regulate gene expression. qRT-PCR analysis revealed that circRNAs displayed diverse expression patterns at different growth stages. Our results provide an important resource for continuing circRNA research in A. thaliana, and should enhance our understanding of circRNAs in plants. PMID- 29021803 TI - UAV-Based Thermal Imaging for High-Throughput Field Phenotyping of Black Poplar Response to Drought. AB - Poplars are fast-growing, high-yielding forest tree species, whose cultivation as second-generation biofuel crops is of increasing interest and can efficiently meet emission reduction goals. Yet, breeding elite poplar trees for drought resistance remains a major challenge. Worldwide breeding programs are largely focused on intra/interspecific hybridization, whereby Populus nigra L. is a fundamental parental pool. While high-throughput genotyping has resulted in unprecedented capabilities to rapidly decode complex genetic architecture of plant stress resistance, linking genomics to phenomics is hindered by technically challenging phenotyping. Relying on unmanned aerial vehicle (UAV)-based remote sensing and imaging techniques, high-throughput field phenotyping (HTFP) aims at enabling highly precise and efficient, non-destructive screening of genotype performance in large populations. To efficiently support forest-tree breeding programs, ground-truthing observations should be complemented with standardized HTFP. In this study, we develop a high-resolution (leaf level) HTFP approach to investigate the response to drought of a full-sib F2 partially inbred population (termed here 'POP6'), whose F1 was obtained from an intraspecific P. nigra controlled cross between genotypes with highly divergent phenotypes. We assessed the effects of two water treatments (well-watered and moderate drought) on a population of 4603 trees (503 genotypes) hosted in two adjacent experimental plots (1.67 ha) by conducting low-elevation (25 m) flights with an aerial drone and capturing 7836 thermal infrared (TIR) images. TIR images were undistorted, georeferenced, and orthorectified to obtain radiometric mosaics. Canopy temperature (Tc) was extracted using two independent semi-automated segmentation techniques, eCognition- and Matlab-based, to avoid the mixed-pixel problem. Overall, results showed that the UAV platform-based thermal imaging enables to effectively assess genotype variability under drought stress conditions. Tc derived from aerial thermal imagery presented a good correlation with ground truth stomatal conductance (gs) in both segmentation techniques. Interestingly, the HTFP approach was instrumental to detect drought-tolerant response in 25% of the population. This study shows the potential of UAV-based thermal imaging for field phenomics of poplar and other tree species. This is anticipated to have tremendous implications for accelerating forest tree genetic improvement against abiotic stress. PMID- 29021801 TI - Inspirations on Virus Replication and Cell-to-Cell Movement from Studies Examining the Cytopathology Induced by Lettuce infectious yellows virus in Plant Cells. AB - Lettuce infectious yellows virus (LIYV) is the type member of the genus Crinivirus in the family Closteroviridae. Like many other positive-strand RNA viruses, LIYV infections induce a number of cytopathic changes in plant cells, of which the two most characteristic are: Beet yellows virus-type inclusion bodies composed of vesicles derived from cytoplasmic membranes; and conical plasmalemma deposits (PLDs) located at the plasmalemma over plasmodesmata pit fields. The former are not only found in various closterovirus infections, but similar structures are known as 'viral factories' or viroplasms in cells infected with diverse types of animal and plant viruses. These are generally sites of virus replication, virion assembly and in some cases are involved in cell-to-cell transport. By contrast, PLDs induced by the LIYV-encoded P26 non-virion protein are not involved in replication but are speculated to have roles in virus intercellular movement. These deposits often harbor LIYV virions arranged to be perpendicular to the plasma membrane over plasmodesmata, and our recent studies show that P26 is required for LIYV systemic plant infection. The functional mechanism of how LIYV P26 facilitates intercellular movement remains unclear, however, research on other plant viruses provides some insights on the possible ways of viral intercellular movement through targeting and modifying plasmodesmata via interactions between plant cellular components and viral encoded factors. In summary, beginning with LIYV, we review the studies that have uncovered the biological determinants giving rise to these cytopathological effects and their importance in viral replication, virion assembly and intercellular movement during the plant infection by closteroviruses, and compare these findings with those for other positive-strand RNA viruses. PMID- 29021805 TI - Concurrent Effects of Sediment Accretion and Nutrient Availability on the Clonal Growth Strategy of Carex brevicuspis-A Wetland Sedge That Produces Both Spreading and Clumping Ramets. AB - Clonal plants producing both clumping and spreading ramets can adjust their growth forms in response to resource heterogeneity or environmental stress. They might produce clumping ramets to retain favorable patches, or produce spreading ramets to escape from stress-affected patches. This study aimed to investigate the rarely reported concurrent effects of sediment accretion and nutrient enrichment, which often occur simultaneously in lacustrine wetlands, on the vegetative propagation and clonal growth forms of Carex brevicuspis C.B. Clarke by conducting a factorial experiment of sediment burial and nutrient addition. Biomass accumulation, new ramet and rhizome numbers, and ramet length of C. brevicuspis were not affected at moderate burial, but were significantly lower after deep burial. Similarly, nutrient enrichment increased the growth and vegetative propagation of C. brevicuspis up to moderate sediment burial, but not after deep burial. Sediment accretion increased the proportion of spreading ramets produced by C. brevicuspis, whereas nutrient addition had no effect on the clonal growth forms. Our results indicated that the plasticity of clonal growth forms is an effective strategy used by plants to acclimate to moderate sediment accretion. Nutrient enrichment did not influence the clonal growth forms of C. brevicuspis and could not facilitate its acclimation to heavy sedimentation condition. PMID- 29021804 TI - Calcium and Calmodulin Are Involved in Nitric Oxide-Induced Adventitious Rooting of Cucumber under Simulated Osmotic Stress. AB - Osmotic stress is a major form of abiotic stress that adversely affects growth and development of plants and subsequently reduces yield and quality of crops. In this study, the effect of nitric oxide (NO) and calcium (Ca2+) on the process of adventitious rooting in cucumber (Cucumis sativus L.) under simulated osmotic stress was investigated. The results revealed that the effect of exogenous NO and Ca2+ in promoting the development of adventitious roots in cucumber seedlings under simulated osmotic stress was dose-dependent, with a maximal biological response at 10 MUM NO donor nitroprusside (SNP) or 200 MUM Ca2+. The application of Ca2+ chelators or channel inhibitors and calmodulin (CaM) antagonists significantly reversed NO-induced adventitious rooting, implying that endogenous Ca2+/CaM might be involved in NO-induced adventitious rooting under osmotic stress. Moreover, intracellular Ca amount was also increased by NO in cucumber hypocotyls during the development of adventitious roots under osmotic stress. This increase of endogenous Ca2+ was inhibited by NO specific scavenger 2-(4 carboxyphenyl) -4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt (cPTIO), nitrate reductase inhibitors tungstate (Na2WO4) and sodium azide (NaN3). This gives an indication that Ca2+ might be a downstream signaling molecule in the adventitious root development by NO under osmotic condition. The results also show that NO or Ca2+ play a positive role in improving plant water status and photosynthetic system by increasing chlorophyll content and photochemical activity in leaves. Furthermore, NO and Ca2+ treatment might alleviate the negative effects of osmotic stress by decreasing membrane damage and reactive oxygen species (ROS) production by enhancing the activities of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX). Therefore, Ca2+/CaM may act as a downstream signaling molecule in NO-induced development of adventitious root under simulated osmotic stress through improving the photosynthetic performance of leaves and activating antioxidative system in plants. PMID- 29021806 TI - ERECTA Regulates Cell Elongation by Activating Auxin Biosynthesis in Arabidopsis thaliana. AB - The ERECTA family genes, ERECTA (ER), ERECTA-LIKE1 (ERL1), and ERECTA-LIKE2 (ERL2), encode leucine-rich repeat receptor-like kinases in Arabidopsis thaliana. Knocking out these three genes can cause severe phenotypes, which indicates that they play significant roles in plant growth and development. However, the molecular mechanism within remains unclear. Here we show that the short hypocotyl phenotypes of er erl1 erl2 mutants are mainly due to the defects of cell elongation rather than the cell division. In contrast, in the ERECTA overexpression transgenic plants, the hypocotyl length is increased with elongated cells. Moreover, we show that the er erl1 erl2 triple mutant contains a low level of auxin, and the expression levels of the key auxin biosynthesis genes are significantly reduced. Consistent with this observation, increasing exogenous or endogenous auxin levels could partially rescue the cell elongation defects of the er erl1 erl2 triple mutant. Therefore, our results provide a molecular basis for auxin mediated ERECTA control of the hypocotyl length in Arabidopsis thaliana. PMID- 29021807 TI - C4 Protein of Sweet Potato Leaf Curl Virus Regulates Brassinosteroid Signaling Pathway through Interaction with AtBIN2 and Affects Male Fertility in Arabidopsis. AB - Sweepoviruses have been identified globally and cause substantial yield losses and cultivar decline in sweet potato. This study aimed to investigate the interaction between sweepovirus and plant host by analyzing the function of the viral protein C4 of Sweet potato leaf curl virus-Jiangsu (SPLCV-JS), a sweepovirus cloned from diseased sweet potato plants in East China. Ectopic expression of the C4 in Arabidopsis altered plant development drastically with phenotypic changes including leaf curling, seedling twisting, deformation of floral tissues and reduction of pollen fertility, and seed number. Using bimolecular fluorescence complementation analysis, this study demonstrated that the SPLCV-JS C4 protein interacted with brassinosteroid-insensitive 2 (AtBIN2) in the plasma membrane of Nicotiana benthamiana cells. The C4 AtBIN2 interaction was further confirmed by yeast two-hybrid assays. This interaction led to the re localization of AtBIN2-interacting proteins AtBES1/AtBZR1 into the nucleus which altered the expression of brassinosteroid (BR)-response genes, resulting in the activation of BR-signaling pathway. The interaction of SPLCV-JS C4 and AtBIN2 also led to the down-regulated expression of key genes involved in anther and pollen development, including SPROROCYTELESS/NOZZLE, DEFECTIVE IN TAPEL DEVELOPMENT AND FUNCTION 1, and ABORTED MICROSPORES, which caused abnormal tapetal development, followed by defective exine pattern formation of microspores and pollen release. Consequently, male fertility in the C4 transgenic Arabidopsis was reduced. The present study illustrated how the sweepovirus C4 protein functioned in host cells and affected male fertility by interacting with the key components of BR-signaling pathway. PMID- 29021809 TI - Erratum to: Appraisal of testicular volumes: volumes matching ultrasound values referenced to stages of genital development. AB - [This corrects the article DOI: 10.1186/s13633-017-0046-x.]. PMID- 29021808 TI - Brassinosteroids Regulate OFP1, a DLT Interacting Protein, to Modulate Plant Architecture and Grain Morphology in Rice. AB - Brassinosteroids (BRs) regulate important agronomic traits in rice, including plant height, leaf angle, and grain size. However, the underlying mechanisms remain not fully understood. We previously showed that GSK2, the central negative regulator of BR signaling, targets DLT, the GRAS family protein, to regulate BR responses. Here, we identified Ovate Family Protein 1 (OFP1) as a DLT interacting protein. OFP1 was ubiquitously expressed and the protein was localized in both cytoplasm and nucleus. Overexpression of OFP1 led to enlarged leaf angles, reduced plant height, and altered grain shape, largely resembled DLT overexpression plants. Genetic analysis showed that the regulation of plant architecture by OFP1 depends on DLT function. In addition, we found OFP1 was greatly induced by BR treatment, and OsBZR1, the critical transcription factor of BR signaling, was physically associated with the OFP1 promoter. Moreover, we showed that gibberellin synthesis was greatly repressed in OFP1 overexpression plants, suggesting OFP1 participates in the inhibition of plant growth by high BR or elevated BR signaling. Furthermore, we revealed that OFP1 directly interacts with GSK2 kinase, and inhibition of the kinase activity significantly promotes OFP1 protein accumulation in plant. Taken together, we identified OFP1 as an additional regulator of BR responses and revealed how BRs promote OFP1 at both transcription and protein levels to modulate plant architecture and grain morphology in rice. PMID- 29021810 TI - Perihepatic cystic mass: Zebra or horse? PMID- 29021811 TI - Significance of finding benign endometrial cells in women 40-45 versus 46 years or older on Papanicolaou tests and histologic follow-up. AB - BACKGROUND: The 2014 Bethesda System recommends reporting the finding of benign appearing, exfoliated endometrial cells on Papanicolaou (Pap) tests in women aged 45 years and older. We aimed to determine the significance of normal endometrial cells on liquid-based Pap tests in women aged 40 years and older and to correlate this finding with clinical factors and cytologic/histologic follow-up. MATERIALS AND METHODS: We retrospectively identified all women aged 40 years and older who had benign endometrial cells (BECs) on Pap tests at our institution during a 6 year period. Histologic follow-up and outcomes were evaluated. RESULTS: Among 18,850 Pap tests during the study period, 255 (1.4%) had findings of BECs and 159 (62.4%) of these women had follow-up Pap tests or subsequent tissue sampling by surgical procedures. Of the 159 cases, only 4 (2.5%) had significant endometrial pathologic processes, all endometrial endometrioid adenocarcinoma (three women had postmenopausal bleeding and 1 was perimenopausal with menorrhagia). No women between ages 40 and 45 years had significant pathologic findings and only one woman between 46 and 50 years (47 years) had an endometrial endometrioid carcinoma (1.5%). Women older than 47 years have higher odds (5.38) of having a significant endometrial lesion (P = 0.029) than those who are <=47. CONCLUSION: Clinically significant endometrial lesions occurred predominantly in women older than 50 years (4.6%) and in only one woman between ages 46 and 50 years (1.5%). Therefore, endometrial sampling should be performed in women aged 47 years and older with BECs, especially when additional clinical indicators (e.g., postmenopausal bleeding) are recognized. PMID- 29021812 TI - Fine needle aspiration of spindle cell ductal carcinoma in situ of the breast: A case report and the use of ancillary tests for the differential diagnosis of metaplastic carcinoma. AB - Spindle cell ductal carcinoma in situ (DCIS) is a recently recognized subtype of DCIS, which is associated with a very rare and unique morphology. Although the histologic features have been relatively well described in a few reports, the cytologic features have not. Even though the distinction of this lesion from usual DCIS is not crucial clinically, it should be noted that this lesion might simulate the features of metaplastic carcinoma on fine needle aspiration cytology. Here, we report a case of spindle cell DCIS in a 45-year-old female, with the detailed cytologic features, both on conventional and liquid-based preparations, along with some useful immunohistochemical staining markers for the differential diagnosis. PMID- 29021813 TI - Effect of a short-term dietary supplementation with phytosterols, red yeast rice or both on lipid pattern in moderately hypercholesterolemic subjects: a three arm, double-blind, randomized clinical trial. AB - BACKGROUND: Phytosterols and red yeast rice are largely studied cholesterol lowering nutraceuticals, respectively inhibiting the bowel absorption and liver synthesis of cholesterol. Our aim was to test the effect on lipid profile of phytosterols, red yeast rice and their association. METHODS: We performed a three parallel arms, double blind, clinical trial randomizing 90 moderately hypercholesterolemic subjects to treatment with phytosterols 800 mg (group 1), red yeast rice standardized to contain 5 mg monacolins from Monascus purpureus (group 2), or both combined nutraceuticals (group 3). RESULTS: After 8 weeks of treatment, in group 1 no significant variation of lipid parameters has been detected. In group 2 a significant reduction (p < 0.001) of LDL-Cholesterol ( 20.5% vs. baseline) and Apolipoprotein B (-14.4% vs. baseline) as it occurred in group 3 (LDL-Cholesterol vs. baseline: -27.0%, Apolipoprotein B vs. baseline: 19.0%) (P < 0.001). LDL-Cholesterol and Apolipoprotein B changes were significantly different comparing group 2 with group 1 (P < 0.05), and group 3 with group 1 (P < 0.05). LDL-Cholesterol change was also significantly higher in group 3 than in group 2 (P < 0.05). CONCLUSION: The association of phytosterol and red yeast rice seems to have additive cholesterol lowering effect, reaching a clinically significant LDL-Cholesterol reduction in mildly hypercholesterolemic patients. TRIAL REGISTRATION: ClinicalTrial.gov ID: NCT02603276, Registered 27/08/2015. PMID- 29021814 TI - Sex-specific association between fibroblast growth factor 21 and type 2 diabetes: a nested case-control study in Singapore Chinese men and women. AB - BACKGROUND: Fibroblast growth factor 21 (FGF-21) is mainly secreted by liver and has been reported to be involved in the pathogenesis of type 2 diabetes. Some prospective studies have shown a positive association between FGF-21 and diabetes risk. However, no study has examined whether the association differed by sex, which has been reported between FGF-21 and atherosclerosis. Therefore, we prospectively evaluated the sex-specific association between FGF-21 and diabetes in a Chinese population. METHODS: Serum FGF-21 concentration was measured in a case-control study comprising of 251 incident diabetes cases and 251 age-sex matched controls nested within a prospective population-based cohort, the Singapore Chinese Health Study. At blood collection between 1999 and 2004, participants were free of diagnosed diabetes, cardiovascular disease, and cancer. Incident self-reported diabetes cases were identified at follow-up II interview (2006-2010). Odds ratio (OR) and 95% confidence interval (CI) were calculated using multivariable logistic regression models. RESULTS: After adjustment for risk biomarkers of diabetes including lipids, liver enzymes and inflammatory marker, the OR of type 2 diabetes with per one unit increment in log FGF-21 concentration was 1.16 (95% CI 0.90-1.50). Significant interaction was found with sex (P-interaction = 0.029): the OR (95% CI) was 1.50 (1.00-2.25) in women and 0.89 (0.52-1.53) in men. CONCLUSIONS: Higher serum FGF-21 level was associated with an increased risk of diabetes in Chinese women but not in men. The sex difference in the association between FGF-21 and diabetes risk deserves further investigation and replication in other populations. PMID- 29021815 TI - Analysis of EEG entropy during visual evocation of emotion in schizophrenia. AB - BACKGROUND: In this study, the international affective picture system was used to evoke emotion, and then the corresponding signals were collected. The features from different points of brainwaves, frequency, and entropy were used to identify normal, moderately, and markedly ill schizophrenic patients. METHODS: The signals were collected and preprocessed. Then, the signals were separated according to three types of emotions and five frequency bands. Finally, the features were calculated using three different methods of entropy. For classification, the features were divided into different sections and classification using support vector machine (principal components analysis on 95%). Finally, simple regression and correlation analysis between the total scores of positive and negative syndrome scale and features were used. RESULTS: At first, we observed that to classify normal and markedly ill schizophrenic patients, the identification result was as high as 81.5%, and therefore, we further explored moderately and markedly ill schizophrenic patients. Second, the identification rate in both moderately and markedly ill schizophrenic patient was as high as 79.5%, which at the Fz point signal in high valence low arousal fragments was calculated using the ApEn methods. Finally, the total scores of positive and negative syndrome scale were used to analyze the correlation with the features that were the five frequency bands at the Fz point signal. The results show that the p value was less than .001 at the beta wave in the 15-18 Hz frequency range. PMID- 29021816 TI - Determinants of early initiation of breastfeeding in rural Niger: cross-sectional study of community based child healthcare promotion. AB - BACKGROUND: Most child deaths are preventable and caused by behaviorally modifiable factors. By promoting optimal breastfeeding, we can reduce neonatal and child mortality risks by 45%. This paper provides new family and community based perspectives to identify factors interfering with the program impact on promoting early initiation of breastfeeding among the most vulnerable populations in rural Niger. METHODS: A secondary analysis of a retrospective cross-sectional study evaluated a UNICEF behavior change program on child healthcare. The study sample is based on a post-hoc constitution of two groups exposed and unexposed to the program. All women (n = 1026) aged 14-49 years having at least one child below 24 months of age were included. We measured crude and adjusted odds ratios with chi-square and multivariate logistic regression models. RESULTS: Independent variables shown to be associated with early breastfeeding include sales activities compared to household work with no direct income (AOR 7.7; 95% CI 1.3, 47.8) and mutual decision for harvest use (AOR 8.6; 95% CI 2.0, 36.8). Antenatal care did not modify the timing of breastfeeding initiation. CONCLUSIONS: A high risk group of mothers with social and economic vulnerability are prone to suboptimal breastfeeding within the first hour of birth. Support from family and neighbors positively influenced early breastfeeding. Those who had no direct income and limited access to health services were a high-risk group, prone to delayed initiation of breastfeeding. PMID- 29021817 TI - A dual isotopic approach using radioactive phosphorus and the isotopic composition of oxygen associated to phosphorus to understand plant reaction to a change in P nutrition. AB - BACKGROUND: Changing the phosphorus (P) nutrition leads to changes in plant metabolism. The aim of this study was to investigate how these changes are reflected in the distribution of 33P and the isotopic composition of oxygen associated to P (delta18OP) in different plant parts of soybean (Glycine max cv. Toliman). Two P pools were extracted sequentially with 0.3 M trichloroacetic acid (TCA P) and 10 M nitric acid (HNO3; residual P). RESULTS: The delta18OP of TCA P in the old leaves of the - P plants (23.80/00) significantly decreased compared to the + P plants (27.40/00). The 33P data point to an enhanced mobilisation of P from residual P in the old leaves of the - P plants compared to the + P plants. CONCLUSIONS: Omitting P for 10 days lead to a translocation of P from source to sink organs in soybeans. This was accompanied by a significant lowering of the delta18OP of TCA P in the source organs due to the enzymatic hydrolysis of organic P. Combining 33P and delta18OP can provide useful insights in plant responses to P omission at an early stage. PMID- 29021818 TI - Algorithms for matching partially labelled sequence graphs. AB - BACKGROUND: In order to find correlated pairs of positions between proteins, which are useful in predicting interactions, it is necessary to concatenate two large multiple sequence alignments such that the sequences that are joined together belong to those that interact in their species of origin. When each protein is unique then the species name is sufficient to guide this match, however, when there are multiple related sequences (paralogs) in each species then the pairing is more difficult. In bacteria a good guide can be gained from genome co-location as interacting proteins tend to be in a common operon but in eukaryotes this simple principle is not sufficient. RESULTS: The methods developed in this paper take sets of paralogs for different proteins found in the same species and make a pairing based on their evolutionary distance relative to a set of other proteins that are unique and so have a known relationship (singletons). The former constitute a set of unlabelled nodes in a graph while the latter are labelled. Two variants were tested, one based on a phylogenetic tree of the sequences (the topology-based method) and a simpler, faster variant based only on the inter-sequence distances (the distance-based method). Over a set of test proteins, both gave good results, with the topology method performing slightly better. CONCLUSIONS: The methods develop here still need refinement and augmentation from constraints other than the sequence data alone, such as known interactions from annotation and databases, or non-trivial relationships in genome location. With the ever growing numbers of eukaryotic genomes, it is hoped that the methods described here will open a route to the use of these data equal to the current success attained with bacterial sequences. PMID- 29021819 TI - HIV-1 matrix protein p17 and its variants promote human triple negative breast cancer cell aggressiveness. AB - BACKGROUND: The introduction of cART has changed the morbidity and mortality patterns affecting HIV-infected (HIV+) individuals. The risk of breast cancer in HIV+ patients has now approached the general population risk. However, breast cancer has a more aggressive clinical course and poorer outcome in HIV+ patients than in general population, without correlation with the CD4 or virus particles count. These findings suggest a likely influence of HIV-1 proteins on breast cancer aggressiveness and progression. The HIV-1 matrix protein (p17) is expressed in different tissues and organs of successfully cART-treated patients and promotes migration of different cells. Variants of p17 (vp17s), characterized by mutations and amino acid insertions, differently from the prototype p17 (refp17), also promote B-cell proliferation and transformation. METHODS: Wound healing assay, matrigel-based invasion assay, and anchorage-independent proliferation assay were employed to compare the biological activity exerted by refp17 and three different vp17s on the triple-negative human breast cancer cell line MDA-MB 231. Intracellular signaling was investigated by western blot analysis. RESULTS: Motility and invasiveness increased in cells treated with both refp17 and vp17s compared to untreated cells. The effects of the viral proteins were mediated by binding to the chemokine receptor CXCR2 and activation of the ERK1/2 signaling pathway. However, vp17s promoted MDA-MB 231 cell growth and proliferation in contrast to refp17-treated or not treated cells. CONCLUSIONS: In the context of the emerging role of the microenvironment in promoting and supporting cancer cell growth and metastatic spreading, here we provide the first evidence that exogenous p17 may play a crucial role in sustaining breast cancer cell migration and invasiveness, whereas some p17 variants may also be involved in cancer cell growth and proliferation. PMID- 29021820 TI - Introduction of p16INK4a as a surrogate biomarker for HPV in women with invasive cervical cancer in Sudan. AB - BACKGROUND: Cervical cancer is the fourth most common cancer in women worldwide with highest incidence reported in Eastern Africa in 2012. The primary goal of this study was to study the expression of p16INK4a in squamous cell carcinoma (SCC) of the cervix by immunohistochemistry (IHC) and determine relation with clinico-pathological parameters. This study further explored the correlation of p16INK4a immunostaining with another proliferation marker, Ki-67 and to study if human papillomavirus (HPV) IHC can be used as a marker for detection of virus in high-grade dysplasia. METHODS: A total of 90 samples, diagnosed for cervical cancer, were included in the study. Fixed Paraffin Embedded (FFPE) tissue sections were stained with anti-p16INK4a, anti-Ki-67 and anti-HPV antibodies using automated immunohistochemistry platform (ASLink 48-DAKO). RESULTS: Immunohistochemical protein expression of p16INK4a positivity was found to be highest in SCC (92.2%, n = 71) than other HPV tumors (76.9%, n = 10). The majority of cases (97.4%) were p16INK4a positive in the age group 41-60 years. In addition, a statistically significant difference between p16INK4a and HPV was observed among total cervical tumor cases and SCC cases. CONCLUSIONS: As expected staining of invasive cervical cancer with anti-HPV showed rare positivity because HPV heralds active infection in dysplastic lesions and not of frank cervical carcinoma. In contrast, anti-p16INK4a IHC results showed positive correlation in SCC and other cervical tumors. PMID- 29021821 TI - Utilization of traditional, complementary and alternative medicine and mental health among patients with chronic diseases in primary health care settings in Cambodia. AB - BACKGROUND: Coping with chronic illnesses often involves major lifestyle changes that may lead to poor mental health. Furthermore, in order to treat the chronic conditions, many sufferers in Asia turn to traditional, complementary and alternative medicines (TCAM). This study explores prevalence of TCAM use and factors associated with anxiety and depressive symptoms among patients with chronic diseases in Cambodia. METHODS: In 2015, this cross-sectional study was conducted with outpatients receiving treatment and care for chronic diseases in two urban and two rural primary health centers. Every eligible patient was randomly selected at the health centers using a systematic sampling procedure. Symptoms of anxiety and depression were assessed by using the Hospital Anxiety and Depression Scale (HADS). Multivariate logistic regression models were constructed to explore factors associated with anxiety and depressive symptoms. RESULTS: The study participants included 1528 patients, of whom 77.2% were female, with a mean age of 46.5 years (SD = 15.3). After adjustment, patients with depressive symptoms remained significantly more likely to be in the age groups between 41 and 60 years old and to be married, separated/divorced or widowed compared to those without depressive symptoms. Regarding the use of TCAM, patients with depressive symptoms remained significantly more likely to report using an herbalist, practicing visualization and praying for own health, but less likely to report using vitamins or supplements in the past 12 months. For quality of life, patients with depressive symptoms remained significantly less likely to agree that they had enough energy for their everyday life and had enough money to meet their daily needs. Similar risk factors were also found to be significantly associated with anxiety symptoms. CONCLUSIONS: Cambodian patients with chronic diseases who experienced symptoms of anxiety or depression were more likely to report reduced quality of life, greater chronic disease-related stigma and more TCAM use. Given the potential interaction of TCAM, mental health and other chronic conditions, a history of TCAM use and mental health should be elicited in clinical practices in primary health care settings, particularly in developing countries. PMID- 29021822 TI - A review of web-based support systems for students in higher education. AB - BACKGROUND: Recent evidence suggests that there is an increasing need for accessible and anonymous services to support higher education (HE) students suffering from psychological and/or academic difficulties. Such difficulties can lead to several negative outcomes, including poor academic performance, sub optimal mental health, reduced study satisfaction, and dropout from study. Currently, universities in the UK lack financial resources and the on-campus mental health services traditionally offered to students are increasingly economically unsustainable. Compounded by the perceived stigma of using such services, mental health providers have been driven to address the escalating needs of students through online services. METHODS: In this paper, we review online support systems identified through a literature search and a manual search of references in the identified papers. Further systems were identified through web searches, and systems still in development were identified by consultation with researchers in the field. We accessed systems online to extract relevant information, regarding the main difficulties addressed by the systems, the psychological techniques used and any relevant research evidence to support their effectiveness. CONCLUSION: A large number of web-based support systems have been developed to support mental health and wellbeing, although few specifically target HE students. Further research is necessary to establish the effectiveness of such interventions in providing a cost-effective alternative to face-to-face therapy, particularly in certain settings such as HE institutions. PMID- 29021823 TI - Evidence-based guideline implementation of quality assurance and quality control procedures in the Saudi National Mental Health Survey. AB - BACKGROUND: The World Mental Health surveys have been known to apply high standards of quality control, but few studies have been published to document this. Furthermore, the effectiveness of quality control has rarely been reported in the Middle East. CASE PRESENTATION: The focus of this paper was to highlight the implementation of quality control procedures in the Saudi National Mental Health Survey under the World Mental Health Survey Consortium. The paper summarizes the guidelines implemented for the various phases of survey quality control-the quality assurance procedures, the quality control procedures and the quality control appraisal components-as per previously prescribed recommendations in literature. CONCLUSIONS: Survey quality management is a process and not reducible to a single event. Midstream corrections are warranted by detecting problems and intervening appropriately. The Saudi National Mental Health Survey implemented such procedures through continuous quality improvement. PMID- 29021824 TI - Intense/obsessional interests in children with gender dysphoria: a cross validation study using the Teacher's Report Form. AB - OBJECTIVE: This study assessed whether children clinically referred for gender dysphoria (GD) show symptoms that overlap with Autism Spectrum Disorder (ASD). Circumscribed preoccupations/intense interests and repetitive behaviors were considered as overlapping symptoms expressed in both GD and ASD. METHODS: To assess these constructs, we examined Items 9 and 66 on the Teacher's Report Form (TRF), which measure obsessions and compulsions, respectively. RESULTS: For Item 9, gender-referred children (n = 386) were significantly elevated compared to the referred (n = 965) and non-referred children (n = 965) from the TRF standardization sample. For Item 66, gender-referred children were elevated in comparison to the non-referred children, but not the referred children. CONCLUSIONS: These findings provided cross-validation of a previous study in which the same patterns were found using the Child Behavior Checklist (Vanderlaan et al. in J Sex Res 52:213-19, 2015). We discuss possible developmental pathways between GD and ASD, including a consideration of the principle of equifinality. PMID- 29021825 TI - Suicidal deaths in elementary school students in Korea. AB - BACKGROUND: The purpose of this study was to determine the characteristics of childhood suicidal deaths among elementary school students that occurred from 2011 to 2015 in Korea. METHODS: The report form of each suicide case by the teacher in charge to the Education Ministry was reviewed retrospectively. RESULTS: There were 19 suicidal deaths (12 boys, 7 girls) in elementary school students. The youngest case was a third grader (n = 1). Jumping from heights (n = 12) was the most frequently used method. Most suicides (n = 12) were committed in their homes. CONCLUSION: These results highlight the alarming trend of early suicidal deaths and the importance of early suicide prevention strategies, especially in schools. PMID- 29021826 TI - Co-production of 11alpha-hydroxyprogesterone and ethanol using recombinant yeast expressing fungal steroid hydroxylases. AB - BACKGROUND: Bioethanol production from sustainable sources of biomass that limit effect on food production are needed and in a biorefinery approach co-products are desirable, obtained from both the plant material and from the microbial biomass. Fungal biotransformation of steroids was among the first industrial biotransformations allowing corticosteroid production. In this work, the potential of yeast to produce intermediates needed in corticosteroid production is demonstrated at laboratory scale following bioethanol production from perennial ryegrass juice. RESULTS: Genes encoding the 11alpha-steroid hydroxylase enzymes from Aspergillus ochraceus (11alpha-SHAoch) and Rhizopus oryzae (CYP509C12) transformed into Saccharomyces cerevisiae for heterologous constitutive expression in p425TEF. Both recombinant yeasts (AH22:p11alpha-SHAoch and AH22:p509C12) exhibited efficient progesterone bioconversion (on glucose minimal medial containing 300 uM progesterone) producing either 11alpha hydroxyprogesterone as the sole metabolite (AH22:p11alpha-SHAoch) or a 7:1 mixture of 11alpha-hydroxyprogesterone and 6beta-hydroxyprogesterone (AH22:p509C12). Ethanol yields for AH22:p11alpha-SHAoch and AH22:p509C12 were comparable resulting in >=75% conversion of glucose to alcohol. Co-production of bioethanol together with efficient production of the 11-OH intermediate for corticosteroid manufacture was then demonstrated using perennial ryegrass juice. Integration of the 11alpha-SHAoch gene into the yeast genome (AH22:11alpha SHAoch+K) resulted in a 36% reduction in yield of 11alpha-hydroxyprogesterone to 174 umol/L using 300 uM progesterone. However, increasing progesterone concentration to 955 uM and optimizing growth conditions increased 11alpha hydroxyprogesterone production to 592 umol/L product formed. CONCLUSIONS: The progesterone 11alpha-steroid hydroxylases from A. ochraceus and R. oryzae, both monooxygenase enzymes of the cytochrome P450 superfamily, have been functionally expressed in S. cerevisiae. It appears that these activities in fungi are not associated with a conserved family of cytochromes P450. The activity of the A. ochraceous enzyme was important as the specificity of the biotransformation yielded just the 11-OH product needed for corticosteroid production. The data presented demonstrate how recombinant yeast could find application in rural biorefinery processes where co-production of value-added products (11alpha hydroxyprogesterone and ethanol) from novel feedstocks is an emergent and attractive possibility. PMID- 29021827 TI - Coordination among the rearfoot, midfoot, and forefoot during walking. AB - BACKGROUND: Examining coordination between segments is essential for prevention and treatment of injuries. However, traditional methods such as ratio, cross correlation technique, and angle-time plot may not provide a complete understanding of intersegmental coordination. The present study aimed to quantify the coordination among the rearfoot, midfoot, and forefoot segments during walking. METHODS: Twenty healthy young men walked barefoot on a treadmill. Reflective markers were fixed to their right shank and foot based on the Leardini foot model. Three-dimensional joint angles were calculated at the distal segment, and were expressed relative to the adjacent proximal segment. The coupling angle representing intersegmental coordination was calculated by using the modified vector coding technique, and categorized into the following four coordination patterns: in-phase with proximal dominancy, in-phase with distal dominancy, tanti phase with proximal dominancy, and anti-phase with distal dominancy. RESULTS: The results showed that the midfoot was dominantly everted compared with the rearfoot and forefoot during the early stance (i.e., the rearfoot-midfoot coordination and midfoot-forefoot coordination were mainly in-phase with distal and proximal dominancy, respectively). CONCLUSION: This result may suggest that the midfoot plays a more significant role than the rearfoot and forefoot during early stance. The results of the present study can help in understanding the interaction of the intersegmental foot kinematic time series during walking. The results could be used as data to distinguish the presence of injuries or abnormal inter-segmental foot motions such as pes planus. Additionally, these data might be used in the future in a comparison with data on foot deformities. PMID- 29021828 TI - Endurance exercise training decreased serum levels of surfactant protein D and improved aerobic fitness of obese women with type-2 diabetes. AB - BACKGROUND: Surfactant protein D (SP-D) is a member of the collectin family and is an important component of the pulmonary innate host defense. To find the relationship between exercise training and SP-D in diabetes, we examined the possible effects of a 10-week endurance exercise-training program on serum levels of SP-D, leptin, lipid profile and insulin resistance in obese women with type-2 diabetes mellitus (T2DM). METHODS: Twenty-two obese women with T2DM were randomly assigned to either exercise training (ET) or control (C) group. A subject dropped from ET group due to personal reasons and 1 subject dropped from C group due to commitment to experiments conditions. A total of twenty obese women with T2DM were randomly assigned into endurance exercise training (ET = 10) and control (C = 10) groups. The training group underwent a progressive endurance-training program for 10 weeks (running on a treadmill for 30-55 min/day at 50-75% heart rate reserve) and the control group did not participate in any exercise program. Venous blood samples were collected from both groups before and 72 h after the last session of exercise training for analysis of serum SP-D, leptin, lipid profile, glucose and insulin. Data were analyzed using 2 (group: control, endurance training) * 2 (time: pre, post) ANOVA with repeated measures on the second factor. Absolute changes from rest (? baseline) values were calculated according to the following formula: ((measure-baseline).baseline-1).100. Percent change between groups was analyzed using independent t-tests (p < 0.05). All analyses were completed using SPSS 19. RESULTS: The serum SP-D levels were decreased after exercise training in ET (? = - 78.78 +/- 17.14%, p = 0.001) when compare to C (? = 9.41 +/- 4.75%). Obese diabetic women in the ET group showed significantly lower serum leptin levels (8053.27 +/- 878.7 pg/ml, ? = - 26.97 +/- 16.41%) when compared with women in the control group (9885.5 +/- 696 pg/ml, ? = 7.02 +/- 3.46%, p = 0.003). Fasting glucose was favorably and significantly affected by the intervention (ET ? = - 17.01 +/- 12.74%, Control ? = 15.47 +/- 7.32%, p = 0.011). VO2max as an index of aerobic fitness was significantly increased after 10-weeks of endurance exercise training (ET ? = 19.29 +/- 6.18%). CONCLUSIONS: Endurance exercise training with improvement in aerobic fitness induced a significant reduction of serum SP-D levels in obese women with T2DM. PMID- 29021830 TI - Emerging issues in public health: a perspective on Ghana's healthcare expenditure, policies and outcomes. AB - Ghana's healthcare expenditure has increased over the past two decades. Increased healthcare expenditures are required to enhance the acquisition of better hospital resources that may improve healthcare. This study presents an overview of healthcare expenditures and health outcomes (i.e. infant mortality, under-5 mortality and life expectancy) from 1995 to 2014 in Ghana. Infant and under-5 mortalities have declined by 50 and 25%, respectively, as of 2014, while life expectancy has increased from 60.7 to 64.8 years. Private spending on health, especially out-of-pocket payments, declined but is higher than the World Health Organization's recommended financial threshold. Non-communicable diseases (NCDs) are rising with healthcare costs leading to catastrophically high healthcare expenditures in the future. While government's investments on healthcare have yielded positive results, the improvement in the health outcomes cannot be attributed to increased health expenditure alone. Therefore, this paper outlines policies on maternal health, national health insurance and healthcare reforms that have influenced health outcomes. In parallel, the paper highlights challenges of the Ghana health system of which the major ones are (1) inadequate financial investments in health and (2) limited health workforce and facilities. These challenges can be ameliorated by (1) establishing new health institutions and expanding existed ones; (2) providing incentives to discourage the exodus of health workers; (3) introduction of the concept of predictive, preventive and personalized medicine (PPPM) for treating NCDs; and (4) alternative insurance schemes for vulnerable groups. This, coupled with the will of the government to curb misappropriation of funds, will be important to achieving better health outcomes. PMID- 29021831 TI - Current patterns of collaboration in published neurology research: Author collaboration in neurological research. PMID- 29021829 TI - Review article: effects of type 2 diabetes therapies on bone metabolism. AB - Diabetes complications and osteoporotic fractures are two of the most important causes of morbidity and mortality in older patients, and they share many features, including genetic susceptibility, molecular mechanisms, and environmental factors. Type 2 diabetes mellitus (T2DM) compromises bone microarchitecture by inducing abnormal bone cell function and matrix structure with increased osteoblast apoptosis, diminished osteoblast differentiation, and enhanced osteoclast-mediated bone resorption. The linkage between these two chronic diseases creates a possibility that certain antidiabetic therapies may affect bone function. The treatment of T2DM has been improved in the past two decades with the development of new therapeutic drugs. Each class has a pathophysiologic target related to the regulation of the energy metabolism and insulin secretion. However, both glycemic homeostasis and bone homeostasis are under the control of common regulatory factors. This background allows the individual pharmacological targets of antidiabetic therapies to affect bone quality due to their indirect effects on bone cell differentiation and the bone remodeling process. With a greater number of diabetic patients and antidiabetic agents being launched, it is critical to highlight the consequences of this disease and its pharmacological agents on bone health and fracture risk. Currently, there is little scientific knowledge approaching the impact of most anti-diabetic treatments on bone quality and fracture risk. Thus, this review aims to explore the pros and cons of the available pharmacologic treatments for T2DM on bone mineral density and risk fractures in humans. PMID- 29021834 TI - Perceived social support as a moderator between negative life events and depression in adolescence: implications for prediction and targeted prevention. AB - AIM AND BACKGROUND: The role of the perceived social support in prevention of depression in adolescence still remains an insufficiently explored problem. By integrating the results of the previous studies of moderator role of perceived social support between negative life events and depression in adolescence we set up two goals. One is to determine whether perceived social support has moderator role in the sample consisted of clinical, subclinical, and control respondents. Another goal is to identify in which group the interaction effect is significant, i.e. the perceived social support acts as moderator. METHODS: The sample consisted of 412 adolescents (61.7% female and 38.3% male) aged 13-17 years (mean = 15.70, SD = 1.22). We applied: Data sheet for all respondents; Mini International Neuropsychiatric Interview; Multidimensional Scale of Perceived Social Support; Adolescent Life Events Questionnaire; Centre for Epidemiological Depression Scale. RESULTS: We have shown that the association between levels of depressive symptoms and negative life events changes as the value of the moderator variable perceived social support changes. The finding that the moderating interaction effect was significant only in the subclinical group is particularly interesting. CONCLUSIONS: Taking into account that perceived social support moderates the association between negative stress events and levels of depression, we can propose a model for the prevention of depression, which will include perceived social support. However, future research with longitudinal design is required to verify the results. PMID- 29021832 TI - Pharmacogenomics in the treatment of mood disorders: Strategies and Opportunities for personalized psychiatry. AB - Personalized medicine (personalized psychiatry in a specific setting) is a new model towards individualized care, in which knowledge from genomics and other omic pillars (microbiome, epigenomes, proteome, and metabolome) will be combined with clinical data to guide efforts to new drug development and targeted prescription of the existing treatment options. In this review, we summarize pharmacogenomic studies in mood disorders that may lay the foundation towards personalized psychiatry. In addition, we have discussed the possible strategies to integrate data from omic pillars as a future path to personalized psychiatry. So far, the progress of uncovering single nucleotide polymorphisms (SNPs) underpinning treatment efficacy in mood disorders (e.g., SNPs associated with selective serotonin re-uptake inhibitors or lithium treatment response in patients with bipolar disorder and major depressive disorder) are encouraging, but not adequate. Genetic studies have pointed to a number of SNPs located at candidate genes that possibly influence response to; (a) antidepressants COMT, HTR2A, HTR1A, CNR1, SLC6A4, NPY, MAOA, IL1B, GRIK4, BDNF, GNB3, FKBP5, CYP2D6, CYP2C19, and ABCB1 and (b) mood stabilizers (lithium) 5-HTT, TPH, DRD1, FYN, INPP1, CREB1, BDNF, GSK3beta, ARNTL, TIM, DPB, NR3C1, BCR, XBP1, and CACNG2. We suggest three alternative and complementary strategies to implement knowledge gained from pharmacogenomic studies. The first strategy can be to implement diagnostic, therapeutic, or prognostic genetic testing based on candidate genes or gene products. The second alternative is an integrative analysis (systems genomics approach) to combine omics data obtained from the different pillars of omics investigation, including genomics, epigenomes, proteomics, metabolomics and microbiomes. The main goal of system genomics is an identification and understanding of biological pathways, networks, and modules underlying drug response. The third strategy aims to the development of multivariable diagnostic or prognostic algorithms (tools) combining individual's genomic information (polygenic score) with other predictors (e.g., omics pillars, neuroimaging, and clinical characteristics) to finally predict therapeutic outcomes. An integration of molecular science with that of traditional clinical practice is the way forward to drug discoveries and novel therapeutic approaches and to characterize psychiatric disorders leading to a better predictive, preventive, and personalized medicine (PPPM) in psychiatry. With future advances in the omics technology and methodological developments for data integration, the goal of PPPM in psychiatry is promising. PMID- 29021833 TI - What California sea lions exposed to domoic acid might teach us about autism: lessons for predictive and preventive medicine. AB - Autism spectrum disorder (ASD) shares many biological and behavioral similarities with the deleterious effects of domoic acid (DA) exposure. DA is produced by marine algae and most commonly by species of Pseudo-nitzschia. Humans and marine mammals can be exposed to DA when they consume whole fish or shellfish. The mammalian fetus is highly sensitive to the deleterious effects of DA exposure. Both ASD and exposures to toxic levels of DA feature repetitive behaviors, challenges with social interaction, and seizures. They can also share a commonality in brain anatomy and function, particularly the balance between excitatory and inhibitory mechanisms. The current article is relevant to predictive, preventive, and personalized medicine for three reasons. First, shellfish consumption may be a risk factor for ASD and the regulatory limit for DA should be adjusted to prevent this possibility. Human contributions to increased algal production of DA in coastal waters should be identified and reduced. Second, evaluations of sentinel species wild and free-roaming in the environment, though typically outside the purview of biomedical research, should be much more fully employed to gain insights to risk factors for human disease. To better identify and prevent disease, biomedical researchers should study wild populations. Third, studies of DA exposure highlight the possibility that glutamate additives to processed foods may also have deleterious impacts on human brain development and behavior. PMID- 29021835 TI - Progressive changes in hippocampal cytoarchitecture in a neurodevelopmental rat model of epilepsy: implications for understanding presymptomatic epileptogenesis, predictive diagnosis, and targeted treatments. AB - Epilepsies affect about 4% of the population and are frequently characterized by a prolonged "silent" period before the onset of spontaneous seizures. Most current animal models of epilepsy either involve acute seizure induction or kindling protocols that induce repetitive seizures. We have developed a rat model of epilepsy that is characterized by a slowly progressing series of behavioral abnormalities prior to the onset of behavioral seizures. In the current study, we further describe an accompanying progression of cytoarchitectural changes in the hippocampal formation. Groups of male and female SD rats received serial injections of a low dose of domoic acid (0.020 mg/kg) (or vehicle) throughout the second week of life. Postmortem hippocampal tissue was obtained on postnatal days 29, 64, and 90 and processed for glial fibrillary acidic protein (GFAP), NeuN, and calbindin expression. The data revealed no significant changes on postnatal day (PND) 29 but a significant increase in hilar NeuN-positive cells in some regions on PND 64 and 90 that were identified as ectopic granule cells. Further, an increase in GFAP positive cell counts and evidence of reactive astrogliosis was found on PND 90 but not at earlier time points. We conclude that changes in cellular expression, possibly due to on-going non-convulsive seizures, develop slowly in this model and may contribute to progressive brain dysfunction that culminates in a seizure-prone phenotype. PMID- 29021836 TI - Specific protein biomarker patterns for Alzheimer's disease: improved diagnostics in progress. AB - This short review looks at Alzheimer's disease (AD) diagnosis through my own point of view, going from imaging through cerebrospinal fluid to blood proteins. Over the last couple of years, we have published two papers targeted at Alzheimer's diagnosis. In one paper, we took an approach of selecting a specific target, namely, activity-dependent neuroprotective protein (ADNP), and our results tightened the association of ADNP blood expression with intelligence. In another paper, we took an unbiased approach of analysis of all genes expressed in lymphoblastoid cells lines and discovered changes in expression of the regulator of G-protein signaling 2 (RGS2) as a potential AD predictor. This review will assess our data in comparison to selected independent studies focusing on blood protein biomarkers as well as assessing saliva and urine samples with potential predictive value for AD. Furthermore, the review will provide directions for a combination of innovative markers, stratifying the population toward disease prevention and personalized medicine. PMID- 29021838 TI - Qualitative analysis of Parkinson's disease information on social media: the case of YouTubeTM. AB - INTRODUCTION: There is a paucity of data pertaining to the usefulness of information presented on social media platforms on chronic neuropsychiatric conditions such as Parkinson's disease (PD). The aim of this study was to examine the quality of YouTubeTM videos that deliver general information on PD and the availability and design of instructional videos addressing the caregiving role in PD. METHODS: YouTubeTM was searched using the keyword "Parkinson's disease" for relevant videos. Videos were assessed for usefulness and accuracy based on pre defined criteria. Data on video characteristics including total viewership, duration, ratings, and source of videos were collated. Instructional PD videos that addressed the role of caregivers were examined closely for the design and scope of instructional content. RESULTS: A total of 100 videos met the inclusion criteria. Just under a third of videos (28%) was uploaded by trusted academic organisations. Overall, 15% of PD videos were found to be somewhat useful and only 4% were assessed as providing very useful PD information; 3% of surveyed videos were misleading. The mean number of video views (regardless of video source) was not significantly different between the different video ratings (p = 0.86). Although personal videos trended towards being less useful than videos from academic organisations, this association was not statistically significant (p = 0.13). CONCLUSION: To our knowledge, this is the first study to assess the usefulness of PD information on the largest video-sharing website, YouTubeTM. In general, the overall quality of information presented in the videos screened was mediocre. Viewership of accurate vs. misleading information was, however, very similar. Therefore, healthcare providers should direct PD patients and their families to the resources that provide reliable and accurate information. PMID- 29021837 TI - The BSSG rat model of Parkinson's disease: progressing towards a valid, predictive model of disease. AB - ABSTRACT: Parkinson's disease (PD) is a neurodegenerative disorder, classically considered a movement disorder. A great deal is known about the anatomical connections and neuropathology and pharmacological changes of PD, as they relate to the loss of dopaminergic function and the appearance of cardinal motor symptoms. Our understanding of the role of dopamine in PD has led to the development of effective pharmacological treatments of the motor symptoms in the form of dopamine replacement therapy using levodopa and dopaminergic agonists. Much of the information concerning these drug treatments has been obtained using classical neurotoxic models that mimic dopamine depletion (e.g., 1-methyl-4 phenyl-1,2,3,6-tetrahydropyridine or MPTP, 6-hydroxydopamine, reserpine). However, PD is more than a disorder of the nigrostriatal dopamine pathway. Our understanding of the neuropathology of PD has undergone massive changes, with the discovery that mutations in alpha-synuclein cause a familial form of PD and that PD pathology may spread, affecting multiple neurotransmitter systems and brain regions. These new developments in our understanding of PD demand that we reconsider our animal models. While classic neurotoxin models have been useful for the development of effective symptomatic treatments for motor manifestations, the paucity of a valid animal model exhibiting the progressive development of multiple key features of PD pathophysiology and phenotype has impeded the search for neuroprotective therapies, capable of slowing or halting disease progression. RELEVANCE OF THE ARTICLE FOR PREDICTIVE PREVENTIVE AND PERSONALISED MEDICINE: What characteristics would a good animal model of human PD have? In so much as is possible, a good model would exhibit as many behavioral, anatomical, biochemical, immunological, and pathological changes as are observed in the human condition, developing progressively, with clear, identifiable biomarkers along the way. Here, we review the BSSG rat model of PD, a novel environmental model of PD, with strong construct, face, and predictive validity. This model offers an effective tool for the screening of preventive therapies that may prove to be more predictive of their effects in human patients. PMID- 29021839 TI - Diffusion tensor imaging for multilevel assessment of the visual pathway: possibilities for personalized outcome prediction in autoimmune disorders of the central nervous system. AB - The afferent visual pathway represents the most frequently affected white matter pathway in multiple sclerosis (MS) and neuromyelitis optica spectrum disorders (NMOSD). Diffusion tensor imaging (DTI) can reveal microstructural or non-overt brain tissue damage and quantify pathological processes. DTI facilitates the reconstruction of major white matter fiber tracts allowing for the assessment of structure-function and damage-dysfunction relationships. In this review, we outline DTI studies investigating the afferent visual pathway in idiopathic optic neuritis (ON), NMOSD, and MS. Since MS damage patterns are believed to depend on multiple factors, i.e., ON (anterior visual pathway damage), inflammatory lesions (posterior visual pathway damage), and global diffuse inflammatory and neurodegenerative processes, comprehensive knowledge on different contributing factors using DTI in vivo may advance our understanding of MS disease pathology. Combination of DTI measures and visual outcome parameters yields the potential to improve routine clinical diagnostic procedures and may further the accuracy of individual prognosis with regard to visual function and personalized disease outcome. However, due to the inherent limitations of DTI acquisition and post processing techniques and the so far heterogeneous and equivocal data of previous studies, evaluation of the true potential of DTI as a possible biomarker for afferent visual pathway dysfunction is still substantially limited. Further research efforts with larger longitudinal studies and standardized DTI acquisition and post-processing validation criteria are needed to overcome current DTI limitations. DTI evaluation at different levels of the visual pathway has the potential to provide markers for individual damage evaluation in the future. As an imaging biomarker, DTI may support individual outcome prediction during personalized treatment algorithms in MS and other neuroinflammatory diseases, hereby leveraging the concept of predictive, preventive, and personalized medicine in the field of clinical neuroimmunology. PMID- 29021840 TI - Vaccination and autoimmune diseases: is prevention of adverse health effects on the horizon? AB - Autoimmune diseases, including multiple sclerosis and type 1 diabetes mellitus, affect about 5% of the worldwide population. In the last decade, reports have accumulated on various autoimmune disorders, such as idiopathic thrombocytopenia purpura, myopericarditis, primary ovarian failure, and systemic lupus erythematosus (SLE), following vaccination. In this review, we discuss the possible underlying mechanisms of autoimmune reactions following vaccinations and review cases of autoimmune diseases that have been correlated with vaccination. Molecular mimicry and bystander activation are reported as possible mechanisms by which vaccines can cause autoimmune reactions. The individuals who might be susceptible to develop these reactions could be especially not only those with previous post-vaccination phenomena and those with allergies but also in individuals who are prone to develop autoimmune diseases, such as those with a family history of autoimmunity or with known autoantibodies, and the genetic predisposed individuals. Further research is encouraged into the direct associations between vaccines and autoimmune conditions, and the biological mechanisms behind them. PMID- 29021842 TI - Cardiac resynchronization therapy in ischemic and non-ischemic cardiomyopathy. AB - Cardiac resynchronization therapy (CRT) using a biventricular pacing system has been an effective therapeutic strategy in patients with symptomatic heart failure with a reduced left ventricular ejection fraction (LVEF) of 35% or less and a QRS duration of 130 ms or more. The etiology of heart failure can be classified as either ischemic or non-ischemic cardiomyopathy. Ischemic etiology of patients receiving CRT is prevalent predominantly in North America, moderately in Europe, and less so in Japan. CRT reduces mortality similarly in both ischemic and non ischemic cardiomyopathy, whereas reverse structural left ventricular remodeling occurs more favorably in non-ischemic cardiomyopathy. Because the substrate for ventricular arrhythmias appears to be more severe in cases of ischemic as compared with non-ischemic cardiomyopathy, the use of an implantable cardioverter defibrillator (ICD) backup method could prolong the long-term survival, especially of patients with ischemic cardiomyopathy, even in the presence of CRT. The aim of this review article is to summarize the effects of CRT on outcomes and the role of ICD backup in ischemic and non-ischemic cardiomyopathy. PMID- 29021843 TI - Impact of baseline renal function on all-cause mortality in patients who underwent cardiac resynchronization therapy: A systematic review and meta analysis. AB - BACKGROUND: Cardiac resynchronization therapy (CRT) improves both morbidity and mortality in selected patients with heart failure and increased QRS duration. However, chronic kidney disease (CKD) may have an adverse effect on patient outcome. The aim of this systematic review was to analyze the existing data regarding the impact of baseline renal function on all-cause mortality in patients who underwent CRT. METHODS: Medline database was searched systematically, and studies evaluating the effect of baseline renal function on all-cause mortality in patients who underwent CRT were retrieved. We performed three separate analyses according to the comparison groups included in each study. Data were analyzed using Review Manager software (RevMan version 5.3; Oxford, UK). RESULTS: We included 16 relevant studies in our analysis. Specifically, 13 studies showed a statistically significant higher risk of all cause mortality in patients with impaired baseline renal function who underwent CRT. The remaining three studies did not show a statistically significant result. The quantitative synthesis of five studies showed a 19% decrease in all-cause mortality per 10-unit increment in estimated glomerular filtration rate (eGFR) [HR: 0.81, 95% CI (0.73-0.90), p<0.01, 86% I2]. Additionally, we demonstrated that patients with an eGFR<60 mL/min/1.73 m2 had an all-cause mortality rate of 66% [HR: 1.66, 95% CI (1.37-2.02), p<0.01, 0% I2], which was higher than in those with an eGFR>=60 mL/min/1.73 m2. CONCLUSION: Baseline renal dysfunction has an adverse effect on-all cause mortality in patients who underwent CRT. PMID- 29021844 TI - Intracoronary acetylcholine application as a possible probe inducing J waves in patients with early repolarization syndrome. AB - Acetylcholine is widely used for a diagnostic provocation test of coronary spasm in patients with vasospastic angina. Acetylcholine usually induces coronary vasodilatation mediated by muscarinic receptor activation, but sometimes it evokes vasoconstriction of coronary arteries where the endothelium is damaged. Early repolarization syndrome is characterized by a J wave observed at the end of the QRS complex in a surface electrocardiogram. The J wave is attributed to the transmural voltage gradient at the early repolarization phase across the ventricular wall, which stems mainly from prominent transient outward current in the epicardium, but not in the endocardium. Transient high-dose application of acetylcholine into the epicardial coronary arteries provides a unique opportunity to augment net outward current, selectively, in the ventricular epicardium and unmask the J wave, irrespective of the cardiac ischemia based on coronary spasm. Acetylcholine augments cardiac membrane potassium conductance by enhancing acetylcholine-activated potassium current directly and by activating adenosine triphosphate-sensitive potassium current, in addition to the reduced sodium and calcium currents in the setting of severe ischemia due to vasospasm. However, the role of acetylcholine as an arrhythmogenic probe of the J wave induction in patients with suspected early repolarization syndrome warrants future prospective study. PMID- 29021845 TI - Incidence and predictors of pericardial effusion as an early complication of catheter ablation for atrial fibrillation: The Japanese Catheter Ablation Registry of Atrial Fibrillation (J-CARAF). AB - BACKGROUND: Pericardial effusion (PE) is one of the most frequent complications from catheter ablation of atrial fibrillation (AF). We assessed the prevalence and predictive factors of PE that require invasive treatment as an early complication of AF ablation. METHODS: The Japanese Heart Rhythm Society requested electrophysiology centers to register the relevant data of patients who underwent AF ablation during 6 months from 2011 to 2015. We compared the clinical profiles and the procedures of AF ablation between patients who had ablation-related PE and those who did not. RESULTS: Two-hundred-and-eight institutions reported the data of 8319 AF ablation sessions (age 63.4+/-10.7 years). A total of 414 complications occurred in 401 patients (4.8%). The incidence of invasively treated critical PE was 1.0% (n=85) of total procedures, while conservatively treated noncritical PE appeared in 95 subjects. When clinical and procedural variables were compared between patients who suffered critical PE and 8140 PE free patients, deep sedation (p=0.030), impaired left ventricular function (p=0.031), and periprocedural warfarin (p=0.023) significantly increased the incidence of critical PE in univariate analysis. Use of 3-D imaging system (p<0.001) and a periprocedural direct oral anticoagulant (DOAC, p=0.002) were related with lower incidence of critical PE. Among these factors, multivariate logistic regression analysis showed that 3-D imaging system (odds ratio 0.23 [95% CI: 0.14-0.39], p<0.001) and a periprocedural DOAC (odds ratio 0.49 [95% CI: 0.27 0.90], p=0.020) are independent predictors of the lower incidence of PE. CONCLUSIONS: Critical PE occurred in 1% of AF ablation procedures in Japan. Our results suggest that 3-D imaging system use independently reduces the frequency of PE. DOACs in the setting of catheter ablation of AF seemed to be non-inferior to warfarin in terms of safety and effectiveness. PMID- 29021846 TI - The influence of residual apixaban on bleeding complications during and after catheter ablation of atrial fibrillation. AB - BACKGROUND: The periprocedural protocol for atrial fibrillation (AF) ablation commonly includes anticoagulation therapy. Apixaban, a direct oral anticoagulant, is currently approved for clinical use; however, little is known about the effects of residual apixaban concentration on bleeding complications during/after AF ablation. Therefore, we measured residual apixaban concentration by using mass spectrometry and examined the anticoagulant's residual effects on bleeding complications. METHODS: Fifty-eight patients (Mean age of 64.7+/-12.5 years; 31 males, 27 females) were enrolled and administered apixaban twice daily. We analyzed trough apixaban concentration, activated clotting time (ACT), heparin dose, and bleeding complications during/after AF ablation. Apixaban concentrations were directly measured using mass spectrometry. RESULTS: Bleeding complications were observed in 19 patients (delayed hemostasis at the puncture site, 16; hematuria, 3; hemosputum, 1). No patient required blood transfusion. The mean trough apixaban concentration was significantly lower in patients with bleeding complications than without (152.4+/-73.1 vs. 206.8+/-98.8 ng/mL respectively, P=0.037), while the heparin dose to achieve ACT>300 s was significantly higher in patients with bleeding complications (9368.4+/-2929.0 vs. 7987.2+/-2135.2 U/body respectively, P=0.046). Interestingly, a negative correlation was found between the trough apixaban concentration and the heparin dose to achieve ACT>300 s (P=0.033, R=-0.281). CONCLUSIONS: Low residual plasma apixaban is associated with a higher incidence of bleeding complications during/after AF ablation, potentially because of a greater heparin requirement during AF ablation. PMID- 29021849 TI - Feasibility, safety, and potential demand of emergent brain magnetic resonance imaging of patients with cardiac implantable electronic devices. AB - BACKGROUND: The feasibility, safety, and potential demand of emergent magnetic resonance imaging (MRI) of patients with a cardiac implantable electronic device (CIED) in emergency situations are unknown. METHODS: We retrospectively compared emergent and scheduled MRI orders for patients with CIEDs at Kameda General Hospital, a tertiary hospital in Japan, from October 2012 to September 2016. RESULTS: We identified 11 emergent MRI orders via the emergency room and 38 scheduled MRI orders. Although the baseline characteristics were similar between the two groups, brain scanning was predominant in emergent scanning (p=0.002). The reasons for MRI and physicians who ordered it were also significantly different between the two groups (p<0.001, p=0.03, respectively). Among the emergent orders via the emergency room, 10 out of 11 were brain scans. Nine out of 10 patients underwent successful emergent brain MRI. The time from arrival at the emergency room to MRI was 144+/-29 min, and the time from the MRI order made by the cardiologist to its actual performance was 60+/-10 min. Four out of 9 patients had a diagnosis of acute stroke confirmed by emergent MRI, and two had emergent thrombolysis with a complete neurological recovery. All emergent scanning was conducted safely with no complications. CONCLUSIONS: Our study found the potential demand of brain MRI of patients with CIEDs in emergency situations compared with scheduled scanning, which was shown to be feasible and safe for the diagnosis and treatment of an acute stroke. PMID- 29021847 TI - A new mapping method to estimate exit sites of ventricular arrhythmias using intracardiac echocardiography and M-mode for catheter ablation. AB - BACKGROUND: Catheter ablation of premature ventricular complexes (PVCs) has been used as a curative therapy in many cases. Intracardiac ultrasound with a magnetic sensor probe has recently become available for catheter ablation. In this study, we assessed a new mapping method, contraction mapping, for determining the optimal ablation sites using intracardiac ultrasound and M-mode. This study sought to assess the accuracy of the new mapping method using intracardiac echocardiography. METHODS: Eighteen patients (10 males and eight females; mean age, 63+/-12 years) with 104 mapping points diagnosed as idiopathic PVCs were included in this study. At the mapping points, the time interval from the onset of the QRS to the onset of the contraction (QRS-c-time) and the local activation time were measured using M-mode with an intracardiac echo probe and using the conventional method. The correlation between the QRS-c-time and local activation time were studied. RESULTS: The QRS-c-time was significantly correlated with the local activation time (activation time=-66.8+0.882 * QRS-c-time, R2=0.728, p<0.0001). CONCLUSIONS: Contraction mapping could help determine the local activation time without the delivery of a catheter to the mapping points. PMID- 29021848 TI - Scar characteristics derived from two- and three-dimensional reconstructions of cardiac contrast-enhanced magnetic resonance images: Relationship to ventricular tachycardia inducibility and ablation success. AB - BACKGROUND: The relationship between cardiac contrast-enhanced magnetic resonance imaging (CE-MRI)-derived scar characteristics and substrate for ventricular tachycardia (VT) in patients with structural heart disease (SHD) has not been fully investigated. METHODS: This study included 51 patients (mean age, 63.3+/ 15.1 years) who underwent CE-MRI with SHD and VT induction testing before ablation. Late gadolinium-enhanced (LGE) regions on MRI slices were quantified by thresholding techniques. Signal intensities (SIs) 2-6 SDs above the mean SI of the remote left ventricular (LV) myocardium were considered as scar border zones, and SI>6 SDs, as scar zone, and the scar characteristics related to VT inducibility and successful ablation via endocardial approaches were evaluated. RESULTS: The proportion of the total CE-MRI-derived scar border zone in the inducible VT group was significantly greater than that in the non-inducible VT group (26.3+/-9.9% vs. 19.2+/-7.8%, respectively, P=0.0323). The LV endocardial scar zone to total LV myocardial scar zone ratio in patients whose ablation was successful was significantly greater than that in those whose ablation was unsuccessful (0.61+/-0.11 vs. 0.48+/-0.12, respectively, P=0.0042). Most successful ablation sites were located adjacent to CE-MRI-derived scar border zones. CONCLUSIONS: By CE-MRI, we were able to characterize not only the scar, but also its location and heterogeneity, and those features seemed to be related to VT inducibility and successful ablation from an endocardial site. PMID- 29021850 TI - Long-term survival of implantable cardioverter defibrillator recipients with end stage renal disease. AB - BACKGROUND: The efficacy of implantable cardioverter-defibrillators (ICD) for primary prevention of sudden cardiac death (SCD) has not been studied in patients with end-stage renal disease (ESRD) and left ventricular dysfunction. We sought to identify predictors of long-term survival among ICD recipients with and without ESRD. METHODS: Patients implanted with an ICD at our institution from January 2006 to March 2014 were retrospectively identified. Clinical and demographic characteristics were collected. Patients were stratified by the presence of ESRD at the time of ICD implant. Mortality data were collected from the Social Security Death Index (SSDI). RESULTS: A total of 3453 patients received an ICD at our institution in the pre-specified time period, 184 (5.3%) of whom had ESRD. In general, ESRD patients were sicker and had more comorbidities. Kaplan Meier survival curve showed that ESRD patients had worse survival as compared with non-dialysis patients (p<0.001). Following adjustment for differences in baseline characteristics, patients with ESRD remained at increased long-term mortality in the Cox model. The one-year mortality in the ESRD patients was 18.1%, as compared with 7.7% in the non-dialysis cohort (p<0.001). The three-year mortality in ESRD patients was 43%, as compared with 21% in the non-dialysis cohort (p<0.001). CONCLUSION: ESRD patients are at significantly increased risk of mortality as compared with a non-dialysis cohort. While the majority of these patients survive more than one year post-diagnosis, the three-year mortality is high (43%). Randomized studies addressing the benefits of ICDs in ESRD patients are needed to better define their value for primary prevention of SCD. PMID- 29021851 TI - Cardiac troponin T as a predictor of cardiac death in patients with left ventricular dysfunction. AB - BACKGROUND: Cardiac troponin T (cTnT) has been reported to be associated with cardiac mortality. In the present study, we evaluated the role of routine assessment of cTnT as a predictor of future cardiac death in patients with left ventricular (LV) dysfunction. METHODS: Patients who were eligible for prophylactic implantable cardioverter defibrillator (ICD) were included from cardiac catheterization database. Inclusion criteria were patients with LV ejection fraction of <= 35% and with New York Heart Association (NYHA) >=class II. Exclusion criteria were patients with acute coronary syndrome, ICD for secondary prevention, NYHA class IV, and lack of data. The final study patients were divided into the following three groups in accordance with two quartile points of serum cTnT levels: low cTnT, intermediate cTnT, and high cTnT groups. The primary endpoint of this study was cardiac death. RESULTS: A total of 70 patients were included (mean age, 62+/-13 years; male individuals, 56; ischemic, 36; and non-ischemic, 34). During the observation period of 2.2 years, cardiac death was observed in 17 patients (fatal arrhythmic event, 9; heart failure, 7; myocardial infarction, 1). In the Kaplan-Meier analysis, the high cTnT group showed the highest risk among all the groups (p<0.001). Even in sub-analyses for ischemic and non-ischemic patients, the results were the same, and the high cTnT group showed the highest event rate (p<0.05). In contrast, no cardiac death was observed in the low cTnT group. CONCLUSION: The cTnT levels in a stable state were associated with cardiac death in patients with LV dysfunction, even in those with non-ischemic diseases. PMID- 29021852 TI - Association between serum soluble urokinase-type plasminogen activator receptor and atrial fibrillation. AB - BACKGROUND: Circulating soluble urokinase-type plasminogen activator receptor (suPAR), which can reflect immune activation and low-grade inflammation, may be a novel biomarker of cardiovascular disease. METHODS: We investigated the potential association between suPAR and the prevalence of atrial fibrillation (AF) by analyzing patients with either sinus rhythm, paroxysmal atrial fibrillation (PAF), or non-paroxysmal atrial fibrillation (NPAF), which indicates either permanent or persistent AF. RESULTS: Among 426 patients enrolled (mean age 71.4+/ 9.2 years; 110 (25.8%) female), 310, 62, and 54 were diagnosed with sinus rhythm, PAF, and NPAF, respectively. NPAF was >10-fold more prevalent in the highest suPAR quartile (>3534 pg/mL; 32 (30.2%) of 106 patients) than in the lowest suPAR quartile (<1802 pg/mL; 3 (2.8%) of 107 patients). Logistic regression analysis showed that, as compared with the lowest suPAR quartile, the highest suPAR quartile was associated with NPAF with an odds ratio of 6.48 (95% confidence interval, 1.71-24.5) after adjustment for sex, age, log(eGFR), C-reactive protein, and systolic blood pressure. In multivariate receiver operating characteristic analysis to predict NPAF, the area under the curve (AUC) for the combination of age, sex, log(eGFR), and C-reactive protein was 0.777 (standard error [SE], 0.036); the addition of log(suPAR) slightly improved the prediction (AUC, 0.812; SE, 0.034, P=0.084). CONCLUSIONS: Serum suPAR was associated with AF, particularly NPAF, as demonstrated by multivariate logistic regression analysis. Whether suPAR promotes or maintains AF should be investigated in further studies. PMID- 29021853 TI - Indications for suboptimal low-dose direct oral anticoagulants for non-valvular atrial fibrillation patients. AB - BACKGROUND: Direct oral anticoagulants (DOACs) have been developed for stroke prevention in patients with non-valvular atrial fibrillation (NVAF). We conducted a retrospective cohort study of patients with NVAF who were newly treated with DOACs in a real-world clinical setting. METHODS: We retrospectively analyzed patients with NVAF newly treated with one of three DOACs-dabigatran, rivaroxaban, or apixaban-between January 1, 2013, and December 31, 2015. RESULTS: A total of 670 patients with NVAF who were newly prescribed one of the three DOACs were analyzed; 74 patients (10.9%) received dabigatran, 290 (43.3%) received rivaroxaban, and 306 (45.8%) received apixaban. Fifteen patients had thromboembolic events, almost half of which were due to discontinuation of DOACs. Six patients had major bleeding, although almost all were discharged with good neurological prognoses. A total of 129 patients were treated with a suboptimal low-dose DOAC; none experienced a thromboembolic event as long as the DOAC was taken regularly, and none of the patients in any of the three DOAC groups had major bleeding events. CONCLUSIONS: With good adherence, the clinical course associated with DOACs is comparatively good. In the future, suboptimal low-dose DOAC therapy may serve as an appropriate choice for some patients with a high risk of stroke and bleeding. PMID- 29021854 TI - Left atrial remodeling: Regional differences between paroxysmal and persistent atrial fibrillation. AB - BACKGROUND: The mechanisms underlying self-perpetuation of persistent atrial fibrillation (AF) are not well understood. To gain insight into these mechanisms, we conducted a study comparing left atrial (LA) electroanatomic maps obtained during sinus rhythm between patients with paroxysmal AF (PAF) and patients with persistent AF (PerAF). METHODS: The study included 23 men with PAF (age, 56.3+/ 12.1 years) and 13 men with PerAF (age, 54.3+/-13.4 years). LA voltage mapping was performed during sinus rhythm. The clinical and electroanatomic characteristics of the two groups were evaluated and analyzed statistically. RESULTS: The bipolar voltages at the LA septum, roof, and posterior wall, right superior pulmonary vein (PV) and its antrum, right superior PV carina, and right inferior PV antrum were significantly lower in patients with PerAF than in those with PAF. The bipolar voltages in other parts of the LA did not differ statistically between the two groups. CONCLUSION: PAF and PerAF seem to be characterized by differences in the regional voltage in the LA and PVs. The LA structural remodeling of PerAF may initiate from the right PVs and their antra and LA septum, roof, and posterior wall. PMID- 29021856 TI - Refractory ventricular tachycardia caused by inflow cannula mechanical injury in a patient with left ventricular assist device: Catheter ablation and pathological findings. AB - In patients with left ventricular assist device (LVAD), a minority of post operative ventricular tachycardias (VTs) is caused by contact between the inflow cannula and the endocardium. Currently, electrophysiologic characteristics and pathologic features of this condition are lacking. We report on a case of a successfully ablated mechanical VT. After VT recurrence, heart transplantation took place. Pathologic observations were consistent with direct tissue injury and inflammation, eventually contributing to persisting arrhythmias. Radiofrequency catheter ablation can be a safe and effective option to treat arrhythmias caused by inflow cannula interference in the short term, although a high recurrence rate is expected. PMID- 29021855 TI - CHADS2 and modified CHA2DS2-VASc scores for the prediction of congestive heart failure in patients with nonvalvular atrial fibrillation. AB - BACKGROUND & PURPOSE: We have conducted a retrospective observational study to analyze the correlation between the CHADS2 score, the modified CHA2DS2-VASc (mCHA2DS2-VASc) score, and the incidence of all-cause death and congestive heart failure (CHF). METHODS: The study cohort consisted of 292 consecutive patients with nonvalvular atrial fibrillation (NVAF) admitted to our hospital from 2012 to 2014. Electronic medical records were used to confirm medical history including prior heart failure, hypertension, diabetes, stroke, and coronary disease. A follow-up survey for all-cause deaths and incidence of CHF was carried out from the baseline data to May 2015. We analyzed the correlation between each score and the endpoints using the Kaplan-Meier method and the Cox proportional hazards model. RESULT: During the follow up period (mean=1.6 years), 69 all-cause deaths and 58 CHF events occurred in the cohort. There was no significant association between these scores and all-cause death in our CHF cohort. The incidence of CHF significantly increased along with increased CHADS2 (p=0.018) or mCHA2DS2-VASc scores (p=0.044). The hazard ratio (HR) for CHF after adjustment for drug treatment was obtained from a Cox proportional hazards model. The HRs for the CHADS2 and mCHA2DS2-VASc scores were 1.38 (95% CI; 1.13-1.68) and 1.35 (95% CI; 1.24-1.59), respectively. CONCLUSION: Calculation of the CHADS2 and mCHA2DS2-VASc scores in order to evaluate the risk of systemic thromboembolism was useful to predict the onset of CHF, but not all-cause death, in patients with NVAF. PMID- 29021857 TI - Arrhythmogenic left atrial roof vein. AB - A seventy year-old male was referred to our hospital to undergo radiofrequency catheter ablation (RFCA) for drug-refractory paroxysmal atrial fibrillation (AF). Pre-operative three-dimensional computed tomography revealed a unique left atrial (LA) roof vein. Electrophysiological findings showed expansion of the myocardial sleeve and local firing in the LA roof vein. We performed isolation of this arrhythmogenic abnormal vein concomitant with general pulmonary vein isolation in this case, and AF did not recur after the procedure. PMID- 29021858 TI - Landiolol suppression of electrical storm of torsades de pointes in patients with congenital long-QT syndrome type 2 and myocardial ischemia. AB - A 76-year-old man who had been diagnosed with long-QT syndrome type 2 had frequent syncopal attacks. The electrocardiogram was monitored, and frequent torsades de pointes (TdP) was detected despite administration of conventional medications: oral propranolol, verapamil, intravenous magnesium sulfate, verapamil, and lidocaine. In contrast, 2 MUg/kg/min landiolol could completely suppress TdP. Subsequently, an implantable cardioverter defibrillator was placed, and he was diagnosed with silent myocardial ischemia using myocardial perfusion scintigraphy and coronary angiography. This is the first case report wherein landiolol effectively suppressed TdP due to long-QT syndrome with silent myocardial ischemia. PMID- 29021859 TI - The electrical circuit of a hemodynamically unstable and recurrent ventricular tachycardia diagnosed in 35 s with the Rhythmia mapping system. AB - Herein, we report a 47-year-old woman with ischemic cardiomyopathy who underwent ablation therapy due to an electrical storm without any triggers. The voltage mapping in sinus rhythm with the Rhythmia system and Orion catheter displayed several LAVAs in and around the anteroapical scar area. Although the patient did not tolerate the induced clinical ventricular tachycardia, which was reproductively induced, 35-second-mapping in the scar zone with the Orion catheter demonstrated the VT circuit with the critical isthmus. This report shows the possibility of the new ultra-high density mapping system in a specific ischemic VT patient. PMID- 29021860 TI - Atriofascicular Mahaim with Ebstein anomaly: A case report. AB - We report a case of a 7-year-old girl with atriofascicular Mahaim (AFM) pathway concomitant with Ebstein's anomaly. The QRS wave showed left bundle branch block pattern on electrocardiogram. Holter electrocardiogram showed prolongation of the PR interval and QRS morphological change during sinus tachycardia. An electrophysiological study demonstrated that the distal His potential appeared earlier than the proximal His potential, which suggested retrograde His conduction toward the atrioventricular node. Conduction from the Mahaim fiber to the His bundle was faster than that from the atrioventricular node towards the His bundle. The findings of this important case allowed a differential diagnosis between AFM and Wolff-Parkinson-White (WPW) syndrome. PMID- 29021861 TI - Three cases of vasospastic angina following catheter ablation of atrial fibrillation. AB - Pulmonary vein isolation is an effective treatment for patients with atrial fibrillation (AF).Although vasospastic angina (VSA) is not a common complication after ablation of AF, we report 3 cases of VSA following ablation of persistent AF. Two of the 3 patients felt chest pain following pulmonary vein isolation, and complex fractionated atrial electrogram ablations were performed. ST elevation in the inferior leads and atrioventricular block occurred because of severe coronary vasospasm. In the third patient, the electrocardiography monitor detected transient ST elevation within an hour after ablation. Treatment of VSA may be required following catheter ablation of AF. PMID- 29021862 TI - Adaptive cardiac resynchronization therapy for dilated cardiomyopathy with functional mitral regurgitation. AB - We report the case of a man in his 60s who had dilated cardiomyopathy with severe functional mitral regurgitation. Four years after a cardiac resynchronization therapy (CRT) device with an implantable cardioverter defibrillator was implanted, this device was replaced with an adaptive CRT device because of battery consumption. Seven months after replacement of this device, the left ventricular pacing to right ventricular activation and the atrioventricular delay from automatic adjustments contributed to less functional mitral regurgitation. The findings from our case suggest that optimal CRT, by measuring intracardiac conduction parameters, is effective for functional mitral regurgitation. PMID- 29021863 TI - Brain magnetic resonance imaging examination in a patient with non-magnetic resonance conditional pacemaker. AB - Clinical dilemmas arise when patients with a non-magnetic resonance (MR) conditional pacemaker are required to undergo magnetic resonance imaging (MRI). We encountered a pacemaker patient with debilitating non-motor symptoms of Parkinson's disease, who required an MRI prior to deep brain stimulation (DBS) surgery. MRI was performed safely without adverse events despite the presence of a conventional pacemaker. PMID- 29021864 TI - Sudden failure of ventricular pacing and recovery in a patient with cardiac sarcoidosis. AB - A 76-year-old woman with sarcoidosis who had an implantable pacemaker for complete atrioventricular block was admitted with syncope. Electrocardiogram revealed ventricular pacing failure, and a marked rise in the ventricular pacing threshold. 18F-Fluorodeoxyglucose positron emission tomography (FDG-PET) indicated increased uptake of FDG in the ventricular septum. Three days after steroid therapy, the ventricular pacing threshold reverted to normal, and FDG-PET showed decreased FDG uptake in the ventricular septum. In this case report, we demonstrate that a sudden deterioration in the ventricular pacing threshold due to worsening cardiac sarcoidosis can be reversed with early steroid therapy. PMID- 29021865 TI - Minimally invasive, pericardial implantable cardioverter-defibrillator placement in a young child. AB - We report the successful minimally invasive placement of a pericardial implantable cardioverter-defibrillator (ICD) in a 16-kg child. A transvenous ICD dual coil was advanced through a small subxiphoid incision and screwed into the oblique sinus pericardium under fluoroscopic guidance. An additional sense-pace lead was sutured onto the right ventricular apex, and the generator was placed in the upper abdominal wall through the same incision. Threshold testing demonstrated successful defibrillation at 15 J. After implantation, the patient had two episodes of appropriate shock for ventricular fibrillation. The ICD system continues to show stable impedance at 6 months of follow-up. PMID- 29021841 TI - 2017 HRS/EHRA/ECAS/APHRS/SOLAECE expert consensus statement on catheter and surgical ablation of atrial fibrillation: Executive summary. PMID- 29021866 TI - Criteria for short QT interval based on a new QT-heart rate adjustment formula. AB - BACKGROUND: A short QT interval, within which an increased risk for atrial fibrillation and/or fatal cardiac arrhythmias occurs, has been difficult to define. METHODS: The lower percentiles of a new QTc formula were determined, using a precise mathematical fitting of the QT-heart rate relationship from the ECGs of 13,600 individuals from the NHANES II and III surveys. RESULTS: The QTc interval for persons in the lower fifth percentile, second (2.5th) percentile and first percentile, were calculated. CONCLUSIONS: Based on the new spline formula, a short QTc is defined at the first percentile, and is less than 380 ms in both men and women. PMID- 29021867 TI - Concealed conduction of premature ventricular complexes resulting in AV nodal block. AB - . PMID- 29021868 TI - Management of patients with long QT syndrome. PMID- 29021869 TI - A perspective of Genes and Environment for the development of environmental mutagen research in Asia. AB - Two years have passed since the Japanese Environmental Society (JEMS) made the official journal Genes and Environment (G&E) open access. Current subjects on environmental mutagen research to further advance this field are described herein, and the roles of JEMS and G&E are discussed. Various important subjects are being investigated in current research fields such as severe environmental pollution in Asian countries; the identification of new hazardous substances and elucidation of mutation mechanisms using newly developed techniques; the development of new genotoxicity assays including in silico predictions using information technology and artificial intelligence as well as bioassays. International exchange by scientists is important for advancing these research fields through international conferences such as the 12th International Conference and 5th Asian Congress on Environmental Mutagens and the 7th International Workshop on Genotoxicity Testing that will be held in 2017. G&E provides a common platform for high quality environmental mutagen research, contributes to the dissemination of Asian environmental mutagen research, and potentiates the level of research being conducted. PMID- 29021870 TI - The potential role of miRNAs in therapy of breast and ovarian cancers associated with BRCA1 mutation. AB - Germline variants within BRCA1 or BRCA2 genes account for approximately 25% of familial aggregations of breast-ovarian cancers. Low or no expression of BRCA1 in breast and ovarian cancers is associated with a good clinical response to treatment with platinum therapies and PARP1 inhibitors. Recent studies demonstrated that microRNAs - small non-coding RNAs, involved in the control of gene expression, can decrease BRCA1 expression by targeting the 3'UTR region of the gene. This article reviews reported relationships between various miRNAs, such as miRNA-9, miRNA-146a, miRNA-182 miRNA-218, miRNA-638 and the response to cytostatic drugs, mainly to platins and PARP1 inhbitors, for the treatment of breast and ovarian cancer associated with BRCA1 mutations. PMID- 29021871 TI - Knowledge on Bone Banking among Participants in an Orthopaedic Conference: A Preliminary Survey. AB - Despite increasing use of bone graft in Malaysia, there was still lack of data to quantify knowledge level on bone banking among orthopaedic community who are involved in transplantation related work. Therefore, a survey on awareness in tissue banking specifically bone banking, usage and choice of bone grafts was conducted. From 80 respondents, 82.5% were aware about tissue banking however only 12.5% knew of the existence of tissue banks in Malaysia. Femoral head was the bone allograft most often used as a substitute to autograft. Only 34.8% respondents preferred irradiated bone grafts whilst 46.9% preferred nonirradiated, indicating the need to educate the importance of radiation for sterilising tissues. Exhibition was the most preferred medium for awareness programme to disseminate information about bone banking in the orthopaedic community. The professional awareness is necessary to increase the knowledge on the use of bone graft, hence to increase bone transplantation for musculoskeletal surgeries in the country. PMID- 29021872 TI - Psychometric Properties of the Malay Language Version of Knee Injury and Osteoarthritis Outcome Score (KOOS) Questionnaire among Knee Osteoarthritis Patients: A Confirmatory Factor Analysis. AB - Introduction: This study aimed to cross-culturally adapt a Malay version of Knee Injury and Osteoarthritis Outcome Score (KOOS) and to evaluate its psychometric properties in patients with knee osteoarthritis (OA). Materials and Methods: The English version KOOS was translated into a Malay version using forward and backward translation process, followed by face validity and content validity. Two hundred and twenty-six knee OA patients attending the Outpatient and Orthopaedic Clinics, Universiti Sains Malaysia Hospital, completed the Malay version KOOS. Construct validity using confirmatory factor analysis and internal reliability assessment were performed. Results: The results showed that the original five factor model with 42 items failed to achieve acceptable values of the goodness of fit indices, indicating poor model fit. A new five-factor model of 26 items demonstrated acceptable level of goodness of fit (comparative fit index= 0.929, incremental fit index= 0.930, Tucker Lewis fit index= 0.920, root mean square error of approximation= 0.073 and Chisquared/degree of freedom= 2.183) indices to signify a model fit. The Cronbach's alpha value for the new model ranged from 0.776 to 0.946. The composite reliability values of each construct ranged between 0.819 and 0.921, indicating satisfactory to high level of convergent validity. Conclusion: The five-factor model with 26 items in the Malay version of KOOS questionnaire demonstrated a good degree of goodness of fit and was found to be valid, reliable and simple as an assessment tool for symptoms, pain, activity of daily living, sports and recreational activity and quality of life for Malaysian adults suffering from knee osteoarthritis. PMID- 29021873 TI - Comparative Study of Proximal Tibia and Iliac Crest Bone Graft Donor Sites in Treatment of Orthopaedic Pathologies. AB - Introduction: Bone graft is harvested from bone and used to stimulate bone healing due to its properties. The aims of the study were to compare the quantity of graft harvested from proximal tibia and iliac crest, and the complications at these donor sites. Materials and Methods: This was a prospective study carried out on all consecutive patients who had orthopaedic procedures that required bone grafting at the study centre, from April, 2015 to March, 2016. Results: During the study period, 86 patients were recruited; 43 of these patients had bone graft harvested from the proximal tibia, while the other 43 patients had graft harvested from the iliac crest. There were 53 males, and 33 females. Mean age of patients was 41.2 +/- 11 years and 40.8 +/- 16 years, for proximal tibia and iliac crest group respectively. Average compressed volume of graft harvested from proximal tibia and iliac crest were 7cm3 and 5.5cm3 respectively. Non-unions were the commonest indications for bone grafting, femur was the commonest bone requiring bone grafting. Complications such as primary haemorrhage, pain and surgical site infection were commoner with iliac crest than proximal tibia donor sites, however bone graft harvested from both proximal tibia and iliac crest provided adequate bone union of the indicated procedure. Conclusion: Larger quantity of graft can be harvested from proximal tibia than the iliac crest. Though graft harvested from both the proximal tibia and the iliac crest have good healing properties, the proximal tibia donor site gave less complication than the iliac crest. PMID- 29021874 TI - Functional Outcome of Isolated Hoffa Fractures Treated with Cannulated Cancellous Screw. AB - Introduction: Isolated Hoffa fracture is an infrequent injury and little research has been done on this subject. The purpose of this study was to evaluate the functional outcome and complications of surgically managed Hoffa fractures with cannulated cancellous screw. Materials and Methods: Between 2011 and 2014, eight isolated Hoffa fractures in seven adult patients with mean age 39.8+/-11.9 years (range 25-60 years) were managed with cannulated cancellous screw of 6.5mm diameter applied in anterior to posterior direction using swashbuckler and medial parapatellar approach for lateral and medial Hoffa fractures respectively. All patients were evaluated using knee evaluation score after two years or longer. Mean follow up was 28+/-3.8 months (range 24-36 months). Results: All fractures in the eight patients healed clinicoradiologically by the 16th week with excellent result in 87.5% cases and good in 12.5% cases. By the end of union, the range of motion (ROM) of the knee was 0 degrees to 110 degrees except in two patients. One patient had ROM 10 degrees -100 degrees and other had 15 degrees 90 degrees . Mean knee evaluation score was 87.5+/-10.4. There was no incidence of non-union, infection or avascular changes in the patients or loss of reduction till final follow up. Conclusion: Open reduction and fixation with two 6.5 mm cannulated cancellous screws with early mobilization yielded good functional outcome in isolated Hoffa fractures. PMID- 29021875 TI - Endoprosthetic Reconstruction of distal Humerus following Resection of distal Humeral Giant Cell Tumours in Six Patients in Rural India. AB - Giant cell tumour is a commonly occurring benign bone tumour in the Indian population. The common sites of involvement in descending order of frequency are distal femur, proximal tibia, distal radius and proximal humerus. The less commonly occurring sites are distal humerus, pelvis and proximal femur. We present six cases of giant cell tumour involving the distal humerus in rural India. After obtaining a tissue diagnosis by Trucut biopsy and classifying using Enneking's classification, we proceeded to perform wide resection followed by endoprosthetic reconstruction using custom mega prosthesis. We present here six patients (M: F: 2: 4) who were managed by us between 2008-2014. They presented to us with pain around the elbow and restriction in range of movements. They were each noted radiographically to have a lytic lesion involving the distal humerus with the likely diagnosis of giant cell tumour. Closed biopsy was done in all of them to obtain a definitive diagnosis. All patients underwent wide resection and reconstruction using distal humerus custom prosthesis. All patients were followed up at 6, 12, 18 and 24 weeks and thereafter six monthly until the last review. They were assessed using the DASH scoring system. All patients were well with no evidence of recurrence with good to fair functional outcome. We conclude that careful pre-operative planning with meticulous soft tissue dissection and good implant metallurgy and design, these tumours can be treated with good long term functional results. PMID- 29021876 TI - Coracoid Process Morphology using 3D-CT Imaging in a Malaysian Population. AB - Introduction: The aims of this study are to define the coracoid process anatomy in a Malaysian population, carried out on patients in Hospital Serdang with specific emphasis on the dimension of the base of coracoid process which is important in coraco-acromial (CC) ligament reconstruction, to define the average amount of bone available for use in coracoid transfer, and to compare the size of coracoid process based on gender and race, and with findings in previous studies. Materials and Methods: Fifteen pairs of computed tomography (CT) based 3 dimensional models of shoulders of patients aged between 20 to 60 years old were examined. The mean dimensions of coracoid were measured and compared with regards to gender and race. The data were also compared to previously published studies. Results: The mean length of the coracoid process was 37.94 +/- 4.30 mm. Male subjects were found to have larger-sized coracoids in all dimensions as compared to female subjects. The mean tip of coracoid dimension overall was 19.99 + 1.93mm length * 10.03 + 1.48mm height * 11.63 + 2.12mm width. The mean base of coracoid dimension was 18.96 + 3.71mm length * 13.84 + 1.76mm width. No significant differences were observed with regards to racial denomination. The overall coracoid size measurements were found to be smaller compared to previous studies done on the Western population. Conclusion: This study may suggest that Malaysians have smaller coracoid dimension compared to Caucasians. The findings further suggest that the incidence of coracoid fracture and implants pull out in Malaysian subjects may be higher. PMID- 29021878 TI - Displaced Supracondylar Humerus Fractures in Children - Are They All Identical? AB - Introduction: This study aims to ascertain if there are any differences in supracondylar fractures between children under seven years of age and those above 7 years of age. Materials and Methods: All cases of displaced humerus supracondylar fractures that required surgical stabilization were identified and retrospectively reviewed. Demographic data, mode of injury, associated neurovascular injuries and details of surgery performed were obtained from clinical records. The Gartland classification and the extent of comminution of fractures were also documented from review of radiographs. Results: One hundred and twelve children were included in this study, of whom 61 (54.46%) were younger than seven years of age while 51 (45.5%) were aged seven years or older. Children aged seven or older had a greater incidence of associated neurological deficit at presentation (p=0.046). Of the six patients with nerve injury in the older age group, one patient (16.7%) had a radial nerve injury, two patients (33.3%) had ulnar nerve injuries while another two patients (33.3%) had median nerve injuries. There was one patient (16.7%) with both median and ulnar nerve injuries. Comminuted fractures were also more common in the older children (p=0.004). No significant differences were demonstrated between the groups with regard to age, gender and mechanism of injury, laterality, incidence of open fracture, vascular injuries and operative time. Conclusion: Children aged seven years or older who sustain supracondylar humeral fractures tend to get more comminuted fractures. There is also a higher incidence of associated neurological injury. These cases must be carefully examined for at presentation and parents need to be appropriately counselled about them. PMID- 29021877 TI - Determining if Positive Predictive Value using Laboratory Risk Indicator for Necrotising Fasciitis is Applicable in Malaysian Patients with Necrotising Fasciitis. AB - Introduction: Necrotising fasciitis (NF) is a rapidly progressive infection of the subcutaneous tissue and fascia which spreads rapidly. The scoring system of Laboratory Risk Indicator for Necrotising Fasciitis (LRINEC) developed by Wong et al has been proposed as a tool for distinguishing NF and other soft tissue infections (STI) in Singapore. We set out to establish whether the LRINEC score is applicable in our Malaysian setting. Materials and Methods: A cross sectional study of all patients admitted to our hospital diagnosed with NF or To Rule Out NF (TRO NF) between January 1st 2016 to 30th June 2016. The sensitivity, specificity, positive and negative predictive values were then calculated for LRINEC score of >= 6 and >= 8. Results: Fourty-four patients were identified with the diagnosis of NF or TRO NF in the study. Twenty-seven patients (61.4%) were deemed post-operatively as having NF and 17 patients (38.6%) not having NF. A sensitivity of 59.3% and specificity of 47.1% when a LRINEC score of >= 6 was taken with positive predictive value (PPV) of 64.0% and the negative predictive value (NPV) of 42.1%. When score >= 8 was taken, the sensitivity was 48.1% and specificity of 58.8% with PPV of 65% and NPV of 41.7%. Conclusion: The low sensitivity and low PPV achieved in this study as well as other studies makes the LRINEC score unsuitable to be used solely to distinguish NF with other soft tissue infections. PMID- 29021881 TI - Chronic Traumatic Sagittal Band Injury with Extensor Tendon Dislocation: Report of a Case and New Surgical Technique. AB - Chronic sagittal band injury with tendon dislocation of the extensor digitorum communis in the hand often requires operative stabilization. Various surgical techniques have been reported to repair and reconstruct the sagittal band. Nonetheless, most of the techniques are technically demanding and require donor graft. In this case report, we report a novel surgical technique to centralize and stabilize the tendon by reattaching the radial sagittal band with anchor sutures. The advantages of this new technique are simple, no donor morbidity and stable repair to restore the normal biomechanics of the tendon. The patient was able to return to work in three months and no recurrent dislocation was noted at review two years after surgery. PMID- 29021879 TI - A Comparison of Plain Radiography with Computer Tomography in Determining Coronal and Sagittal Alignments following Total Knee Arthroplasty. AB - Introduction: Optimal coronal and sagittal component positioning is important in achieving a successful outcome following total knee arthroplasty (TKA). Modalities to determine post-operative alignment include plain radiography and computer tomography (CT) imaging. This study aims to determine the accuracy and reliability of plain radiographs in measuring coronal and sagittal alignment following TKA. Materials and Methods: A prospective, consecutive study of 58 patients undergoing TKA was performed comparing alignment data from plain radiographs and CT imaging. Hip-knee-angle (HKA), sagittal femoral angle (SFA) and sagittal tibial angle (STA) measurements were taken by two observers from plain radiographs and compared with CT alignment. Intra- and inter-observer correlation was calculated for each measurement. Results: Intra-observer correlation was excellent for HKA (r>0.89) with a mean difference of <1.9 degrees . The least intra-observer correlation was for SFA (mean r=0.58) with a mean difference of 8 degrees . Inter-observer correlation was better for HKA (r>0.95) and STA (r>0.8) compared to SFA (r=0.5). When comparing modalities (radiographs vs CT), HKA estimations for both observers showed the least maximum and mean differences while SFA observations were the least accurate. Conclusion: Radiographic estimation of HKA showed excellent intra- and inter-observer correlation and corresponds well with CT imaging. However, radiographic estimation of sagittal plane alignment was less reliably measured and correlated less with CT imaging. Plain radiography was found to be inferior to CT for estimation of biplanar prosthetic alignment following TKA. PMID- 29021882 TI - Primary Osteosarcoma of the Distal Fibula treated with Distal Fibulectomy with a Five-Year Follow-up: A Case Report. AB - Musculoskeletal tumours of the lower limbs especially malignant tumours are not common. The fibula is the site of primary bone tumours as reported in 2.4% of lower limb tumours with the proximal third being more frequently involved than the distal segment. Osteosarcoma is the most common primary malignant bone tumour of nonhaematopoietic origin, with distal fibular involvement in 0.47% of patients. The advances in imaging techniques and neo-adjuvant chemotherapy have now made it possible to accurately define the extent of tumour and plan limb salvage with tumour resection. The purpose of this case report is to highlight the successful outcome of limb salvage procedure with a five year follow up in an 11-year old boy with distal fibular osteosarcoma. Limb salvage surgery with distal fibulectomy and retention of the foot are a good alternative to radical amputation. PMID- 29021880 TI - Use of Titanium Elastic Nails in the Adult Diaphyseal Humerus Fractures. AB - Introduction: Humerus shaft fractures in adults can be managed conservatively with functional braces or operatively with plate osteosynthesis or with intramedullary nailing. Conventionally humerus intramedullary nailing is done either using humerus interlocking nails or Enders nails. In this study we analyse the outcome of humerus shaft fractures (upper and middle third) managed with closed ante-grade intramedullary titanium elastic nailing in terms of union rates, union time, functional results and complications. Materials and Methods: A retrospective analysis of 25 patients treated with ante-grade intramedullary titanium elastic nailing was done during the period of August 2014 to June 2016 at our tertiary care centre. Skeletally mature patients with closed and acute fractures of the upper and middle shaft humerus of both sexes were included in the study. Results: Twenty-five (100%) fractures united with an average consolidation time of 14.98 weeks (10-32 weeks), and no fractures ended in non union. Nail impingement was seen in two (8%), shoulder stiffness in one (4%). Functional results were excellent in 22 (88%), moderate in two (8%) and poor in one (4%). There were 17 males and eight females with an average age of 39.08 years (range: 18-65 years). The average duration of hospital stay was 3.84+/-2.30 days. Conclusion: Closed ante-grade intramedullary titanium elastic nailing offers a safe and reliable method of fixing fractures of upper humeral shaft in adults. This method provides early fracture union, high union rates and less complications, in addition to early rehabilitation and reduces the hospital stay. PMID- 29021883 TI - Brodie's Abscess of Posterior Ilium with Gluteal Syndrome, an Unusual Cause of Paediatric Low Back Pain: A Case Report. AB - Brodie's abscess is a variety of subacute osteomyelitis with a long duration of presentation and intermittent pain. It usually involves the metaphyseal region of long bones of the lower limbs. Brodie's abscess of pelvic bone is very rare. Involvement of posterior ilium with gluteal syndrome is extremely unusual and can be easily missed or misdiagnosed. We present a 9-year old boy who reported to us with intermittent low back pain of three months duration without any other constitutional symptoms. Clinically, there was mild tenderness over the posterior ilium. Computed tomography showed a lytic lesion in the posterior ilium with a breach in the outer cortex. MRI and bone scan were suggestive of inflammatory pathology. Keeping infective, tubercular and benign bone tumors as differential diagnoses, open biopsy and curettage were done. Staphylococcus aureus was cultured and histopathology was suggestive of osteomyelitis. The patient received appropriate antibiotics for six weeks. He was asymptomatic till 18 months of follow up without any recurrence. We present this case because of its rarity and unusual presentation as gluteal syndrome and low back pain, and its resemblance to other pelvic and sacroiliac joint pathologies which are often missed or misdiagnosed in paediatric patients. PMID- 29021884 TI - Life-threatening Chlorhexidine Anaphylaxis: A Case Report. AB - Chlorhexidine is a common antiseptic and disinfectant used in the medical field. Allergy to chlorhexidine has been reported in the literature but life-threatening anaphylactic shock is rare. We present a case of severe anaphylactic shock due to chlorhexidine occurring during surgery. Literatures suggest that profound anaphylactic shock to chlorhexidine is commonly preceded by milder, non-specific reactions. These mild symptoms are often dismissed by both the patient and physicians alike. Direct questioning of these symptoms is necessary as a part of the pre-operative assessment and the patient should be referred for further immunology testing if indicated. PMID- 29021885 TI - Fracture-dislocation at C6-C7 level with Quadriplegia after Traditional Massage in a Patient with Ankylosing Spondylitis: A Case Report. AB - Ankylosing spinal disorders (ASD) tend to result in fractures and/or dislocations after minor trauma because of the altered biomechanical properties. The relative risk of traumatic vertebral fractures in patients with ankylosing spondylitis has been estimated as three times higher than in the general population. These spine traumas, which are located at cervical level in 81% of patients with ankylosing spondylitis, are complicated by neurological lesions in 65% of patients, due to the high inherent instability of these fractures. Traditional massage is an ancient practice in many parts of Asia. It has many benefits that are currently recognized world-wide. However, it can be dangerous and even lethal if practised without adequate knowledge and skill. We report a case of C6-C7 fracture dislocation with complete neurology and neurogenic shock in a middle aged man with undiagnosed ankylosing spondylitis. PMID- 29021886 TI - Antibiotic-laden Arthroplasty with a Novel Design of Cement Mould and Metallic Endoskeleton for Treatment of Hip Infection, an Inexpensive Alternative: A Preliminary Report of Two Cases. AB - Infection of the hip after implant fixation is an uncommon yet devastating complication that results in poor long-term outcome. The gold standard treatment for chronic infection after hip arthroplasty is a two-stage protocol: eradication of infection, follow by re-implantation arthroplasty. The use of interim antibiotic-laden cement spacer has become a popular procedure to maintain hip joint function and provide antibiotic elution simultaneously before re implantation. However, antibiotic cement spacer is mechanically weak and breaks if overloaded. Therefore, we designed a cement mould with metallic endoskeleton with the aim of creating a stronger, inexpensive, antibiotic-impregnated spacer resembling a unipolar arthroplasty. We report two cases of severe hip joint infection after implant fixation (bipolar hemiarthroplasty, screw fixation neck of femur). Both patients had undergone first stage surgery of debridement and articulating antibiotic cement insertion using our design. Although the second stage surgery was planned for these patients, both patients delayed the operation in view of good functional status after a year walking with the antibiotic cement spacer. These cases showed that the mechanical property of the new antibiotic cement spacer was promising but further mechanical studies upon this new endoskeleton design are required. PMID- 29021887 TI - A Modified Technique of Fixation for Proximal Femoral Valgus Osteotomy in Abnormal Bone: A Report of Two Cases. AB - The ideal size of intramedullary device to fix corrective osteotomy of proximal femur in abnormal bone in children and small patients may not be easily available. We report the successful use of Rush rod in combination with multiple Kirschner wires to fix the corrective osteotomy of coxa vara and shepherd crook deformity in two patients with osteogenesis imperfecta and fibrous dysplasia. The union was achieved on time, neck shaft angle and rotation were maintained. PMID- 29021888 TI - A Good Short-term Outcome in Delayed Decompression of Cauda Equina Syndrome in Klebsiella pneumoniae Spinal Epidural Abscess: A Case Report. AB - Spinal epidural abscess is a severe, generally pyogenic, infection of the epidural space of spinal cord or cauda equina. The swelling caused by the abscess leads to compression or vascular disruption of neurological structures that requires urgent surgical decompression to avoid significant permanent disability. We share a rare case of Klebsiella pneumoniae spinal epidural abscess secondary to haematogenous spread of previous lung infection that presented late at our centre with cauda equina syndrome that showed good short-term outcome in delayed decompression. A 50-year old female presented with one-week history of persistent low back pain with progressively worsening bilateral lower limb weakness for seven days and urinary retention associated with saddle anesthesia of 2-day duration. Magnetic resonance imaging with contrast of the lumbo-sacral region showed an intramuscular collection of abscess at left gluteus maximus and left multifidus muscle with a L3-L5 posteriorly placed extradural lesion enhancing peripherally on contrast, suggestive of epidural abscess that compressed the cauda equina. The pus was drained using the posterior lumbar approach. Tissue and pus culture revealed Klebsiella pneumoniae, suggestive of bacterial infection. The patient made immediate improvement of muscle power over bilateral lower limbs postoperative followed by ability to control micturition and defecation the 4th post-operative day. A good short-term outcome in delayed decompression of cauda equine syndrome is extremely rare. Aggressive surgical decompression combined with antibiotic therapy led to good short-term outcome in this patient despite delayed decompression of more than 48 hours. PMID- 29021891 TI - A good sugar, d-mannose, suppresses autoimmune diabetes. AB - It is well known that too much sugar uptake causes many health problems, including diabetes and obesity (Lustig et al. in Nature 482:27-29, 2012). However, a team of researchers led by Dr. Wanjun Chen of the National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health (NIH), USA, have recently shown that d-mannose, a naturally occurring C-2 epimer of glucose is likely beneficial to human health. Their studies have revealed that supraphysiological levels of d-mannose that are safely achievable via drinking water supplementation can be preventive and therapeutic to experimental autoimmune diabetes and asthmatic lung inflammation (Zhang et al. in Nat Med 23:1036-1045, 2017). PMID- 29021889 TI - Linguistic camouflage in girls with autism spectrum disorder. AB - BACKGROUND: Autism spectrum disorder (ASD) is diagnosed more frequently in boys than girls, even when girls are equally symptomatic. Cutting-edge behavioral imaging has detected "camouflaging" in girls with ASD, wherein social behaviors appear superficially typical, complicating diagnosis. The present study explores a new kind of camouflage based on language differences. Pauses during conversation can be filled with words like UM or UH, but research suggests that these two words are pragmatically distinct (e.g., UM is used to signal longer pauses, and may correlate with greater social communicative sophistication than UH). Large-scale research suggests that women and younger people produce higher rates of UM during conversational pauses than do men and older people, who produce relatively more UH. Although it has been argued that children and adolescents with ASD use UM less often than typical peers, prior research has not included sufficient numbers of girls to examine whether sex explains this effect. Here, we explore UM vs. UH in school-aged boys and girls with ASD, and ask whether filled pauses relate to dimensional measures of autism symptom severity. METHODS: Sixty-five verbal school-aged participants with ASD (49 boys, 16 girls, IQ estimates in the average range) participated, along with a small comparison group of typically developing children (8 boys, 9 girls). Speech samples from the Autism Diagnostic Observation Schedule were orthographically transcribed and time aligned, with filled pauses marked. Parents completed the Social Communication Questionnaire and the Vineland Adaptive Behavior Scales. RESULTS: Girls used UH less often than boys across both diagnostic groups. UH suppression resulted in higher UM ratios for girls than boys, and overall filled pause rates were higher for typical children than for children with ASD. Higher UM ratios correlated with better socialization in boys with ASD, but this effect was driven by increased use of UH by boys with greater symptoms. CONCLUSIONS: Pragmatic language markers distinguish girls and boys with ASD, mirroring sex differences in the general population. One implication of this finding is that typical-sounding disfluency patterns (i.e., reduced relative UH production leading to higher UM ratios) may normalize the way girls with ASD sound relative to other children, serving as "linguistic camouflage" for a naive listener and distinguishing them from boys with ASD. This first-of-its-kind study highlights the importance of continued commitment to understanding how sex and gender change the way that ASD manifests, and illustrates the potential of natural language to contribute to objective "behavioral imaging" diagnostics for ASD. PMID- 29021892 TI - Catching global interactions in vivo. AB - Histone proteins and transcription factors (TFs) play critical roles in gene transcription and development of multicellular organisms. Although antibody mediated protein isolation couple with mass spectrometry approach has been a standard method to identify TF interacting partners and characterize their functional molecular complexes, it becomes urge to develop a robust method to functional characterize how these transcription factors act during biological process in the post-human genome project era. Here, Dr. Zhao and his colleagues in the National Heart, Lung, and Blood Institute of NIH develop a sensitive and robust strategy to globally identify and characterize in vivo protein-protein interactions termed bait protein-protein interaction-sequencing (bPPI-seq) (Zhang et al. in Cell Res doi:10.1038/cr.2017.112, 2017). As a proof-of-principle, they demonstrated that genome-wide interacting partners of histone variant H2A.Z are mainly involved in transcriptional regulation which is distinct from the interacting proteins of canonical histone H2A. Thus, their results suggest that bPPI-seq can be widely used to globally characterize protein complexes especially transcription factor interacting partners and molecular networks formed. PMID- 29021890 TI - Zebrafish knockout of Down syndrome gene, DYRK1A, shows social impairments relevant to autism. AB - BACKGROUND: DYRK1A maps to the Down syndrome critical region at 21q22. Mutations in this kinase-encoding gene have been reported to cause microcephaly associated with either intellectual disability or autism in humans. Intellectual disability accompanied by microcephaly was recapitulated in a murine model by overexpressing Dyrk1a which mimicked Down syndrome phenotypes. However, given embryonic lethality in homozygous knockout (KO) mice, no murine model studies could present sufficient evidence to link Dyrk1a dysfunction with autism. To understand the molecular mechanisms underlying microcephaly and autism spectrum disorders (ASD), we established an in vivo dyrk1aa KO model using zebrafish. METHODS: We identified a patient with a mutation in the DYRK1A gene using microarray analysis. Circumventing the barrier of murine model studies, we generated a dyrk1aa KO zebrafish using transcription activator-like effector nuclease (TALEN) mediated genome editing. For social behavioral tests, we have established a social interaction test, shoaling assay, and group behavior assay. For molecular analysis, we examined the neuronal activity in specific brain regions of dyrk1aa KO zebrafish through in situ hybridization with various probes including c-fos and crh which are the molecular markers for stress response. RESULTS: Microarray detected an intragenic microdeletion of DYRK1A in an individual with microcephaly and autism. From behavioral tests of social interaction and group behavior, dyrk1aa KO zebrafish exhibited social impairments that reproduce human phenotypes of autism in a vertebrate animal model. Social impairment in dyrk1aa KO zebrafish was further confirmed by molecular analysis of c-fos and crh expression. Transcriptional expression of c-fos and crh was lower than that of wild type fish in specific hypothalamic regions, suggesting that KO fish brains are less activated by social context. CONCLUSIONS: In this study, we established a zebrafish model to validate a candidate gene for autism in a vertebrate animal. These results illustrate the functional deficiency of DYRK1A as an underlying disease mechanism for autism. We also propose simple social behavioral assays as a tool for the broader study of autism candidate genes. PMID- 29021893 TI - The efficacy of oral and subcutaneous antigen-specific immunotherapy in murine cow's milk- and peanut allergy models. AB - BACKGROUND: Antigen-specific immunotherapy (AIT) is a promising therapeutic approach for both cow's milk allergy (CMA) and peanut allergy (PNA), but needs optimization in terms of efficacy and safety. AIM: Compare oral immunotherapy (OIT) and subcutaneous immunotherapy (SCIT) in murine models for CMA and PNA and determine the dose of allergen needed to effectively modify parameters of allergy. METHODS: Female C3H/HeOuJ mice were sensitized intragastrically (i.g.) to whey or peanut extract with cholera toxin. Mice were treated orally (5 times/week) or subcutaneously (3 times/week) for three consecutive weeks. Hereafter, the acute allergic skin response, anaphylactic shock symptoms and body temperature were measured upon intradermal (i.d.) and intraperitoneal (i.p.) challenge, and mast cell degranulation was measured upon i.g. challenge. Allergen specific IgE, IgG1 and IgG2a were measured in serum at different time points. Single cell suspensions derived from lymph organs were stimulated with allergen to induce cytokine production and T cell phenotypes were assessed using flow cytometry. RESULTS: Both OIT and SCIT decreased clinically related signs upon challenge in the CMA and PNA model. Interestingly, a rise in allergen-specific IgE was observed during immunotherapy, hereafter, treated mice were protected against the increase in IgE caused by allergen challenge. Allergen-specific IgG1 and IgG2a increased due to both types of AIT. In the CMA model, SCIT and OIT reduced the percentage of activated Th2 cells and increased the percentage of activated Th1 cells in the spleen. OIT increased the percentage of regulatory T cells (Tregs) and activated Th2 cells in the MLN. Th2 cytokines IL-5, IL-13 and IL-10 were reduced after OIT, but not after SCIT. In the PNA model, no differences were observed in percentages of T cell subsets. SCIT induced Th2 cytokines IL-5 and IL-10, whereas OIT had no effect. CONCLUSION: We have shown clinical protection against allergic manifestations after OIT and SCIT in a CMA and PNA model. Although similar allergen-specific antibody patterns were observed, differences in T cell and cytokine responses were shown. Whether these findings are related to a different mechanism of AIT in CMA and PNA needs to be elucidated. PMID- 29021894 TI - Occupational stress and the importance of self-care and resilience: focus on veterinary nursing. AB - BACKGROUND: Burnout and compassion fatigue are frequently mentioned in relation to veterinary work. Veterinary nursing is a caring profession and those who seek a career within this field do so because of a natural empathetic desire to care for animals. However it is the individuals who are the most caring and empathetic towards others that will be most at risk of experiencing occupational stress when they are confronted with psychologically demanding workplace roles and working environments. MAIN BODY: Burnout is considered an 'unintentional end point' for certain individuals who are exposed to chronic stress within their working environment. When suffering burnout, a person may experience emotional exhaustion, may become more cynical or they may have a reduced sense of personal accomplishment in regards to their own work. Signs of burnout can include increased levels of absenteeism at work, or the working standards of that staff member may decline below that of what would normally be expected of them. This could directly impact on patient care in the veterinary practice. Working in a role that places emotional demands on staff, such as a need to show compassion and empathy towards clients who are emotionally distressed, puts staff at risk from experiencing compassion fatigue. Workplace supports may include appropriate debriefing sessions among willing participants, particularly after an emotionally stressful encounter with a client. Taking personal responsibility for care of one's own mental and physical health is just as important as taking care of the patient's health. Personal strategies may include lifestyle changes, adopting a healthier lifestyle, reduction of working hours, and ensuring adequate sleep. Adopting healthy self-care strategies can promote characteristics of "resilience" - personal qualities or traits such as optimism, self-confidence, level headedness, hardiness, and having the ability to be resourceful during times of adversity. CONCLUSION: All veterinary staff may be better prepared to deal with occupational stress related conditions if they gain better insight and ability to recognise the condition in self and others, and if provided with the toolkits to develop coping strategies and resilience. PMID- 29021895 TI - Readiness for antimicrobial resistance (AMR) surveillance in Pakistan; a model for laboratory strengthening. AB - BACKGROUND: Limited capacity of laboratories for antimicrobial susceptibility testing (AST) presents a critical diagnostic bottleneck in resource limited countries. This paper aims to identify such gaps and to explore whether laboratory networks could contribute towards improving AST in low resource settings. METHODS: A self-assessment tool to assess antimicrobial susceptibility testing capacity was administered as a pre-workshop activity to participants from 30 microbiology laboratories in 3 cities in Pakistan. Data from public and private laboratories was analyzed and capacity of each scored in percentage terms. Laboratories from Karachi were invited to join a support network. A cohort of five laboratories that consented were provided additional training and updates sessions over a period of 15 months. Impact of training activities in these laboratories was evaluated using a point scoring (0-11) tool. RESULTS: Results of self-assessment component identified a number of areas that required strengthening (scores of <=60%). These included; readiness for AMR surveillance; 38 and 46%, quality assurance; 49 and 55%, and detection of specific organisms; 56 and 60% for public and private laboratories respectively. No significant difference was detected in AST capacity between public and private laboratories [ANOVA; p > 0.05]. Scoring tool used to assess impact of training within the longitudinal cohort showed an increase from a baseline of 1-5.5 (August 2015) to improved post training scores of 7-11 (October 2016) for the 5 laboratories included. Moreover, statistical analysis using paired t-Test Analysis, assuming unequal variance, indicated that the increase in scored noted represents a statistically significant improvement in the components evaluated [p < 0.05]. CONCLUSION: Strengthening of laboratory capacity for AMR surveillance is important. Our data shows that close mentoring and support can help enhance capacity for antimicrobial sensitivity testing in resource limited settings. Our study further presents a model wherein laboratory networks can be successfully established and used towards improving diagnostic capacity in such settings. PMID- 29021897 TI - Patient outcome of emergency laparotomy improved with increasing "number of surgeons on-call" in a university hospital: Audit loop. AB - AIM: Emergency laparotomy is a commonly performed high-mortality surgical procedure. The National Emergency Laparotomy Network (NELA) published an average mortality rate of 11.1% and a median length of stay equivalent to 16.3 days in patients undergoing emergency laparotomy. This study presents a completed audit loop after implementing the change of increasing the number of on-call surgeons in the general surgery rota of a university hospital. The aim of this study was to evaluate the outcomes of emergency laparotomy in a single UK tertiary centre after addition of one more consultant in the daily on-call rota. METHODS: This is a retrospective study involving patients who underwent emergency laparotomy between March to May 2013 (first audit) and June to August 2015 (second audit). The study parameters stayed the same. The adult patients undergoing emergency laparotomy under the general surgical take were included. Appendicectomy, cholecystectomy and simple inguinal hernia repair patients were excluded. Data was collected on patient demographics, ASA, morbidity, 30-day mortality and length of hospital stay. Statistical analysis including logistic regression was performed using SPSS. RESULTS: During the second 3-month period, 123 patients underwent laparotomy compared to 84 in the first audit. Median age was 65(23-93) years. 56.01% cases were ASA III or above in the re-audit compared to 41.9% in the initial audit. 38% patients had bowel anastomosis compared to 35.7% in the re audit with 4.2% leak rate in the re-audit compared to 16.6% in the first audit. 30-day mortality was 10.50% in the re-audit compared to 21% and median length of hospital stay 11 days in the re-audit compared to 16 days. The lower ASA grade was significantly associated with increased likelihood of being alive, as was being female, younger age and not requiring ITU admission post-operatively. However, having a second on-call consultant was 2.231 times more likely to increase the chances of patients not dying (p = 0.031). CONCLUSION: Our audit loop suggests that adding a second consultant to the daily on-call rota significantly reduces postoperative mortality and morbidity. Age, ASA and ITU admission are other independent factors affecting patient outcomes. We suggest this change be applied to other high volume centres across the country to improve the outcomes after emergency laparotomy. PMID- 29021896 TI - Disease modification and Neuroprotection in neurodegenerative disorders. AB - BACKGROUND: Disease modifying therapies (DMTs) are urgently needed for neurodegenerative diseases (NDD) such as Alzheimer's disease (AD) and many other disorders characterized by protein aggregation and neurodegeneration. Despite advances in understanding the neurobiology of NDD, there are no approved DMTs. DISCUSSION: Defining disease-modification is critical to drug-development programs. A DMT is an intervention that produces an enduring change in the trajectory of clinical decline of an NDD by impacting the disease processes leading to nerve cell death. A DMT is neuroprotective, and neuroprotection will result in disease modification. Disease modification can be demonstrated in clinical trials by a drug-placebo difference in clinical outcomes supported by a drug-placebo difference on biomarkers reflective of the fundamental pathophysiology of the NDD. Alternatively, disease modification can be supported by findings on a staggered start or delayed withdrawal clinical trial design. Collecting multiple biomarkers is necessary to support a comprehensive view of disease modification. CONCLUSION: Disease modification is established by demonstrating an enduring change in the clinical trajectory of an NDD based on intervention in the fundamental pathophysiology of the disease leading to nerve cell death. Supporting data are collected in clinical trials. Effectively defining a DMT will assist in NDD drug development programs. PMID- 29021898 TI - A case report and approach to management in pneumatosis intestinalis. AB - Pneumatosis Intestinalis (PI) is an uncommon condition in which there is gas present within the wall of the gastrointestinal tract. PI is usually found in the large bowel, but can less commonly occur in the small bowel, and gas may be present in either the subserosal or submucosal layer of the intestine. Its unfamiliarity often means it is under-recognised and not considered as a differential diagnosis when assessing a patient with abdominal symptoms. The spectrum of conditions that produce PI is varied and ranges from the non-urgent to life-threatening. Early appreciation of the overall clinical picture is therefore paramount to enable the practitioner to distinguish between the benign to the fatal cases of PI and enable precise decision-making regarding its management. The challenge facing the clinician is twofold; firstly the accurate identification of the diagnosis of PI, as opposed to other causes of peritoneal gas and secondly judging whether operative or non-operative management should ensue. We present a case of a patient presenting on two separate occasions with PI, abdominal symptoms and radiological signs of acute abdominal pathology which demonstrates the wide spectrum of difficulties faced with this uncommon condition. PMID- 29021900 TI - A content analysis of thinspiration, fitspiration, and bonespiration imagery on social media. AB - BACKGROUND: On social media, images such as thinspiration, fitspiration, and bonespiration, are shared to inspire certain body ideals. Previous research has demonstrated that exposure to these groups of content is associated with increased body dissatisfaction and decreased self-esteem. It is therefore important that the bodies featured within these groups of content are more fully understood so that effective interventions and preventative measures can be informed, developed, and implemented. METHOD: A content analysis was conducted on a sample of body-focussed images with the hashtags thinspiration, fitspiration, and bonespiration from three social media platforms. RESULTS: The analyses showed that thinspiration and bonespiration content contained more thin and objectified bodies, compared to fitspiration which featured a greater prevalence of muscles and muscular bodies. In addition, bonespiration content contained more bone protrusions and fewer muscles than thinspiration content. CONCLUSIONS: The findings suggest fitspiration may be a less unhealthy type of content; however, a subgroup of imagery was identified which idealised the extremely thin body type and as such this content should also be approached with caution. Future research should utilise qualitative methods to further develop understandings of the body ideals that are constructed within these groups of content and the motivations behind posting this content. PMID- 29021899 TI - Reliability of self-report measures of correlates of obesity-related behaviours in Hong Kong adolescents for the iHealt(H) and IPEN adolescent studies. AB - BACKGROUND: This study examined the reliability of measures of correlates of dietary behaviours (DBs), physical activity (PA) and sedentary behaviour (SB) for Hong Kong adolescents. METHOD: Individual, social and environmental correlates of obesity-related behaviours were assessed twice, 15-27 days apart (average 20 days), via self-administered questionnaires. These questionnaire included measures of decisional balance, self-efficacy, enjoyment and social support related to intake of fruits, vegetables, high-fat foods and sugar-sweetened beverages, PA behaviour and SB. They also included measures of perceived barriers to PA, parental rules related to PA and SB, and environmental correlates of DB, PA and SB. The questionnaires were self-completed outside school hours. A sample of 119 12-17 year old Chinese-speaking secondary school students (60 girls; 59 boys) were recruited from four Hong Kong schools located in areas stratified by walkability and socio-economic status. RESULTS: The test-retest reliability of the examined measures ranged from poor to excellent (ICC: 0.30-0.99). All measures of correlates of PA and SB had excellent or substantial test-retest reliability, with the exception of self-efficacy for reducing SB (ICC: 0.59). Four of 18 measures of DBs showed moderate, and two poor (ICC < 0.41), test retest reliability. Evidence of unidimensionality (Cronbach's alpha >= 0.70) was found for 10 of 28 multi-item scales. The evidence for the remaining 18 was either questionable or poor. CONCLUSIONS: Most of the self-report measures of correlates of obesity-related behaviours used in the iHealt(H) study have acceptable test-retest reliability in Hong Kong adolescents. The factorial structure of several scales needs to be investigated in a larger sample. PMID- 29021901 TI - ICSI diagnostic: a way to prevent total fertilization failure after 4 unsuccessful IUI. AB - BACKGROUND: The aim of this retrospective study is to investigate the relevance of dividing oocytes and using some for traditional in vitro fertilization (IVF) and others for intracytoplasmic sperm injection (ICSI) as of the first IVF cycle in patients with unexplained infertility who have undergone 4 intrauterine insemination (IUI) cycles which produced no pregnancies. METHODS: This retrospective study includes patients with unexplained infertility who have failed to become pregnant, after 4 IUI, despite normal semen parameters after sperm capacitation. These women were treated in our assisted fertilization program from 2008 until 2015. We analysed the first cycles of women in whom more than 4 oocyte cumulus complexes (OCC) were retrieved and single embryo transfer was performed. RESULTS: Dividing oocytes between two fertilization techniques reduce the rate of total fertilization failure during the first IVF cycle. No statistical difference were observed for 2 pronuclei (PN) rate between the two techniques. On the other hand, we observed a significantly lower rate of 3 PN, 1 PN, 0 PN with ICSI in comparison with conventional fertilization. CONCLUSIONS: Splitting the oocytes between classical IVF and ICSI increases the chance of embryo transfer on a first IVF cycle after 4 unsuccessful IUI cycles. This half and-half policy reduces the risk, for the infertile couple, of facing total failure of fertilization and also can provide useful information for the next attempts. PMID- 29021903 TI - 'Clostridium mediterraneense,' a new bacterial species isolated from the human gut. AB - We report the main characteristics of 'Clostridium mediterraneense' sp. nov., strain Marseille-P2434T (CSUR P2434), a new species within the genus Clostridium. This strain was isolated from the gut microbiota of a 66-year-old diabetic patient in Marseille, France. PMID- 29021902 TI - Significantly elevated foetal haemoglobin levels in individuals with glucose 6 phosphate dehydrogenase disease and/or sickle cell trait: a cross-sectional study in Cape Coast, Ghana. AB - BACKGROUND: Previously published data have demonstrated that sickle red blood cells produce twice as much reactive oxygen species (ROS) suggesting that co inheritance of sickle cell disease (SCD) and glucose 6-phosphate dehydrogenase (G6PD) enzymopathy could lead to more severe anaemia during sickling crises. Elevated foetal haemoglobin (Hb F) levels have been shown to have positive modulatory effects on sickling crises and disease outcomes. This study sought to assess how inheritance of G6PD enzymopathy affects the level of Hb F and haemoglobin concentration in adults in steady state. METHODS: This cross sectional study selected 100 out-patients (41 males and 59 females) visiting the University of Cape Coast hospital, between January, 2016 and May, 2016. Cellulose acetate electrophoresis (pH 8.2-8.6), methaemoglobin reductase test, modified Betke alkaline denaturation methods were used to investigate haemoglobin variants, qualitative G6PD status, and %Hb F levels in venous blood samples drawn from these participants. Data was analysed with GraphPad Prism 6 and SPSS and significance set at p < 0.05. RESULTS: Forty one percent of the participants demonstrated qualitative G6PD enzymopathy whereas only 10% demonstrated Hb AS type (Sickle cell trait, SCT). 5% of the participants co-inherited SCT and G6PD enzymopathy. %Hb F levels in G6PD deficient males was significantly higher than in G6PD deficient females [(p = 0.0003, 2.696% (males) vs 1.975% (females)], although the %Hb F levels was comparable in non-G6PD deficient individuals. %Hb F levels were significantly elevated in males with SCT only (p < 0.05), or G6PD enzymopathy only (p < 0.0001), or SCT + G6PD enzymopathy (p < 0.0001) compared to males with none of these pathologies even though their respective haemoglobin levels were comparable. Male participants with G6PD enzymopathy + SCT co inheritance had significantly elevated %Hb F when compared to their counterparts with only G6PD enzymopathy (p < 0.001). Male gender [(p = 0.001, OR: 6.912 (2.277 20.984)] partial defective G6PD enzyme [(p = 0.00, OR: 7.567E8 (8.443E7-6.782E9)] SCT [(p = 0.026, OR: 4.625 (1.196-17.881)] were factors associated with raised %Hb F levels >=2.5. CONCLUSION: The inheritance of G6PD defect and/or SCT significantly elevate %Hb F levels in the steady state even though haemoglobin levels are not affected. PMID- 29021904 TI - A study of ribonuclease activity in venom of vietnam cobra. AB - BACKGROUND: Ribonuclease (RNase) is one of the few toxic proteins that are present constantly in snake venoms of all types. However, to date this RNase is still poorly studied in comparison not only with other toxic proteins of snake venom, but also with the enzymes of RNase group. The objective of this paper was to investigate some properties of RNase from venom of Vietnam cobra Naja atra. METHODS: Kinetic methods and gel filtration chromatography were used to investigate RNase from venom of Vietnam cobra. RESULTS: RNase from venom of Vietnam cobra Naja atra has some characteristic properties. This RNase is a thermostable enzyme and has high conformational stability. This is the only acidic enzyme of the RNase A superfamily exhibiting a high catalytic activity in the pH range of 1-4, with pHopt = 2.58 +/- 0.35. Its activity is considerably reduced with increasing ionic strength of reaction mixture. Venom proteins are separated by gel filtration into four peaks with ribonucleolytic activity, which is abnormally distributed among the isoforms: only a small part of the RNase activity is present in fractions of proteins with molecular weights of 12-15 kDa and more than 30 kDa, but most of the enzyme activity is detected in fractions of polypeptides, having molecular weights of less than 9 kDa, that is unexpected. CONCLUSIONS: RNase from the venom of Vietnam cobra is a unique member of RNase A superfamily according to its acidic optimum pH (pHopt = 2.58 +/- 0.35) and extremely low molecular weights of its major isoforms (approximately 8.95 kDa for RNase III and 5.93 kDa for RNase IV). PMID- 29021905 TI - The waterpolo shoulder paradigm: results of ultrasound surveillance at poolside. AB - BACKGROUND: Waterpolo consists of a combination of swimming and throwing with close contact between players. The shoulder is the most frequently injured joint, with a combination of rotator cuff tear and tendinopathy, long head biceps tendinopathy, superior labral lesions and shoulder impingement. This unique combination is a challenge for the clinician who must determine which of these shoulder pathologies is responsible for the onset of pain and the best strategy to rehabilitate the joint and prevent recurrence. AIM: The aim of this study was to estimate with ultrasound the frequency and characteristics of shoulder injuries in waterpolo players competing in different leagues. METHODS: Forty-two players from two clubs in the premier and second Italian league were enrolled in the study. Standard and dynamic shoulder ultrasound scans were performed on all athletes. RESULTS: Ultrasound investigation showed that almost all players had injuries of the shoulders; only four players did not show any shoulder modification. Thirteen athletes who had shoulder pain during the ultrasound examination showed subacromion deltoid bursitis and/or long head biceps tendinitis. No statistically significant differences in the frequency and characteristics of shoulder modifications or injuries were detected between players of the premier or second league. CONCLUSION: Shoulder injuries are very common in waterpolo players and comprise a peculiar and complex combination of rotator cuff tendinopathy and tears, long head biceps tendinopathy, impingement, subacromion deltoid bursitis and superior labral lesions. The use of ultrasound has been shown to be of considerable help in highlighting the modifications of the shoulder structures at an early asymptomatic stage. The ability to perform real-time scanning at the poolside makes ultrasound a useful tool in the rapid management and regular follow-up of shoulder modifications in everyday practice in sport medicine. PMID- 29021906 TI - A pilot biomechanical assessment of curling deliveries: is toe sliding more likely to cause knee injury than flatfoot sliding? AB - BACKGROUND: The aim of this study was to determine whether toe sliding is more likely to cause knee injuries than flatfoot sliding in curling. METHODS: Twelve curlers participated in the study, each delivering 12 stones. Six stones per volunteer were delivered using a flatfoot slide and six were delivered using a toe slide. The Pedar-X in-shoe pressure system recorded the plantar pressure during each of the slides, while a sagittal plane digital video recorded the body position of the curler. Measurements were taken from the video recordings using a software overlay program (MB Ruler), and this, combined with the Pedar-X data, gave the overall joint force in the tuck knee. RESULTS: The knee joint force for toe sliding was more than double that of flatfoot sliding (p<0.05). There was a strong correlation between the increase in knee joint force and the increase in the moment arm of the ground reaction force. Images produced using the three dimensional Vicon system confirm that toe sliding produces a larger moment arm than flatfoot sliding. CONCLUSION: Injuries are more likely to occur in toe sliding, compared with flatfoot sliding, due to the increase in force and moment, pushing the weight of the curler forward over the knee, which could make the adopted position less stable. Curlers might consider avoiding toe sliding to reduce the risk of knee injuries if the two types of delivery could be performed equally well. PMID- 29021907 TI - Lessons from Popper for science, paradigm shifts, scientific revolutions and exercise physiology. AB - A connection has been made to the possible role of the central governor model (CGM) to be a paradigm shift within the exercise sciences. Unfortunately, very little evidence was presented to support this notion, and a narrow view of scientific philosophy was used to reflect on the role of the CGM in understanding exercise physiology and the pursuit of a more ideal scientific method. When contrasting the scientific philosophies of Kuhn to Popper, and applying the tenant of falsification to the research and commentary on the CGM, it is probable that the scholarship pertaining to the CGM adheres more to pseudoscience than science. To improve the scientific contributions of research on the CGM, fellow scientists need to adopt a more critical platform where questions are raised and research designs are employed in efforts to refute the theory. The inability to falsify a theory is the most meaningful way to prove that it is likely to be correct. To support this development, the CGM needs to be more carefully worded to form a theory that clearly reveals key features that can be researched and potentially falsified. In addition, the wording of the CGM needs to allow scientists to make predictions that can then be tested in controlled experimental research studies. Until this happens for the CGM and all other pertinent paradigms within exercise physiology, the discipline will never rise out of the abyss of normal science to extraordinary science involving paradigm shifts and scientific revolutions. PMID- 29021909 TI - Managing diabetes at high altitude: personal experience with support from a Multidisciplinary Physical Activity and Diabetes Clinic. AB - OBJECTIVE: Physical activity is important for well-being but can be challenging for people with diabetes. Data informing support of specialist activities such as climbing and high-altitude trekking are limited. A 42-year-old man with type 1 diabetes (duration 30 years) attended a Multidisciplinary Physical Activity and Diabetes Clinic planning to climb Mont Blanc during the summer and trek to Everest Base Camp in the autumn. His aims were to complete these adventures without his diabetes impacting on their success. METHODS: We report the information provided that enabled him to safely facilitate his objectives, in particular, the requirement for frequent checking of blood glucose levels, the effects of altitude on insulin dose requirements, and recognition that acute mountain sickness may mimic the symptoms of hypoglycaemia and vice versa. Real time continuous glucose monitoring was made available for his treks. RESULTS: The effects of high altitude on blood glucose results and glycaemic variability while treated on multiple daily injections of insulin are reported. In addition, we present a first-person account of his experience and lessons learnt from managing diabetes at high altitude. CONCLUSIONS: A dedicated Multidisciplinary Physical Activity and Diabetes Clinic delivering individualised, evidence-based, patient focused advice on the effects of altitude on blood glucose levels, and provision of real-time continuous glucose monitoring enabled uneventful completion of a trek to Everest Base Camp in a person with type 1 diabetes. PMID- 29021908 TI - Effectiveness of a standardised exercise programme for recurrent neck and low back pain: a multicentre, randomised, two-arm, parallel group trial across 34 fitness clubs in Finland. AB - BACKGROUND: Neck and low back pain (LBP) are common in office workers. Exercise trials to reduce neck and LBP conducted in sport sector are lacking. We investigated the effectiveness of the standardised Fustra20Neck&Back exercise program for reducing pain and increasing fitness in office workers with recurrent non-specific neck and/or LBP. METHOD: Volunteers were recruited through newspaper and Facebook. The design is a multi-centre randomised, two-arm, parallel group trial across 34 fitness clubs in Finland. Eligibility was determined by structured telephone interview. Instructors were specially educated professionals. Neuromuscular exercise was individually guided twice weekly for 10 weeks. Webropol survey, and objective measurements of fitness, physical activity, and sedentary behavior were conducted at baseline, and at 3 and 12 months. Mean differences between study groups (Exercise vs Control) were analysed using a general linear mixed model according to the intention-to-treat principle. RESULTS: At least moderate intensity pain (>=40 mm) in both the neck and back was detected in 44% of participants at baseline. Exercise compliance was excellent: 92% participated 15-20 times out of 20 possible. Intensity and frequency of neck pain, and strain in neck/shoulders decreased significantly in the Exercise group compared with the Control group. No differences in LBP and strain were detected. Neck/shoulder and trunk flexibility improved, as did quality of life in terms of pain and physical functioning. CONCLUSIONS: The Fustra20Neck&Back exercise program was effective for reducing neck/shoulder pain and strain, but not LBP. Evidence-based exercise programs of sports clubs have potential to prevent persistent, disabling musculoskeletal problems. PMID- 29021911 TI - Interval exercise increases angiogenic cell function in postmenopausal women. AB - INTRODUCTION: Exercise can help to negate the increased cardiovascular disease risk observed in women after the menopausal transition. This study sought to determine whether interval or continuous exercise has differential effects on endothelial function and circulating angiogenic cell (CAC) number and function in postmenopausal women. METHODS: Fifteen healthy postmenopausal women completed a 30 min acute moderate-intensity continuous (CON) and interval exercise (MOD-INT) session on a cycle ergometer on separate days. Nine participants completed a further single 30 min acute heavy-intensity interval (HEAVY-INT) exercise session. Brachial artery flow-mediated dilation (FMD) was assessed pre-exercise and 15 min post-exercise session. CAC number and colony-forming capacity in vitro were assessed post exercise and compared with resting levels. RESULTS: FMD and CAC number did not change post exercise regardless of exercise type (p>0.05). However, the number (mean+/-SD) of colony-forming units (CFUs) increased from visit 1 (12+/-10 CFUs/well) to post MOD-INT (32+/-30 CFUs/well) and post HEAVY INT (38+/-23 CFUs/well) but not post CON (13+/-14 CFUs/well). CONCLUSION: A single session of interval exercise is more effective than a continuous exercise session for increasing the intercellular communication of CACs, regardless of exercise intensity. The enhanced ability of CACs to form colonies may reflect an increased number and/or function of angiogenic T-cells. The repeated exertions to higher work rates during interval exercise may explain this response. Repeated exercise sessions might be required to improve FMD in postmenopausal women. PMID- 29021910 TI - The training type influence on male elite athletes' ventilatory function. AB - BACKGROUND/AIM: To assess and compare measured ventilatory volumes (forced expiratory volume in 1 s (FEV1), peak expirium flow (PEF) and maximal voluntary ventilation (MVV)), ventilatory function capacities (forced vital capacity (FVC) and vital capacity (VC)) and FEV1/VC ratio in a sample of power and endurance elite athletes and their age-matched and sex-matched sedentary control group. METHODS: A cross-sectional study was applied on male elite athletes (n=470) who were classified according to the type of the predominantly performed exercise in the following way: group 1: endurance group (EG=270), group 2: power athletes group (SG=200) and group 3: sedentary control group (CG=100). The lung VC, FVC, FEV1, FEV1/FVC ratio, PEF and MVV were measured in all of the observed subjects, who were also classified with regard to body mass index (BMI) and the percentage of the body fat (BF%). RESULTS: The CG had the highest BF% value, while the endurance group had the lowest BMI and BF% value, which is significantly different from the other two groups (p<0.05). The observed values of VC, FVC and FEV1 in the EG were significantly higher than those from the other two groups (p<0.05). There were no differences concerning the observed FEV1/FVC ratio. CONCLUSIONS: A continued endurance physical activity leads to adaptive changes in spirometric parameters (VC, FVC and FEV1), highlighting the fact that there is a need for specific consideration of different respiratory 'pattern' development in different types of sport, which also has to be further evaluated. PMID- 29021912 TI - A study of intensity, fatigue and precision in two specific interval trainings in young tennis players: high-intensity interval training versus intermittent interval training. AB - BACKGROUND: The aim of this study is to find the differences between two specific interval exercises. We begin with the hypothesis that the use of microintervals of work and rest allow for greater intensity of play and a reduction in fatigue. METHODS: Thirteen competition-level male tennis players took part in two interval training exercises comprising nine 2 min series, which consisted of hitting the ball with cross-court forehand and backhand shots, behind the service box. One was a high-intensity interval training (HIIT), made up of periods of continuous work lasting 2 min, and the other was intermittent interval training (IIT), this time with intermittent 2 min intervals, alternating periods of work with rest periods. Average heart rate (HR) and lactate levels were registered in order to observe the physiological intensity of the two exercises, along with the Borg Scale results for perceived exertion and the number of shots and errors in order to determine the intensity achieved and the degree of fatigue throughout the exercise. RESULTS: There were no significant differences in the average heart rate, lactate or the Borg Scale. Significant differences were registered, on the other hand, with a greater number of shots in the first two HIIT series (series 1 p>0.009; series 2 p>0.056), but not in the third. The number of errors was significantly lower in all the IIT series (series 1 p<0.035; series 2 p<0.010; series 3 p<0.001). CONCLUSION: Our study suggests that high-intensity intermittent training allows for greater intensity of play in relation to the real time spent on the exercise, reduced fatigue levels and the maintaining of greater precision in specific tennis-related exercises. PMID- 29021913 TI - Exergaming can be an innovative way of enjoyable high-intensity interval training. AB - OBJECTIVES: Exergames can replace sedentary time spent on computer gaming with physical activity. Previous research has found exergaming to elicit light-to moderate exercise intensity. Our primary aim was to examine the exercise intensity of a newly developed biking exergame. METHODS: Eight males (23.9+/-0.6 years) played the exergame (PLAY) and walked (WALK) on three separate occasions, with the condition counterbalanced and in random sequence within each day. They were asked to PLAY and WALK for a minimum of 15 min and then continue for as long as they wanted. We measured heart rate (HR), activity duration, caloric expenditure and subject-rated exertion and enjoyment (based on 0-10 Visual Analogue Scale, VAS). We used an average of each outcome variable across the 3 days in the analysis. RESULTS: The average intensity during PLAY (73%+/-10% of HRmax) was significantly higher than that during WALK (57%+/-7% of HRmax, p=0.01). Participants spent 12.5+/-5.3 min at 80%-89% of HRmax and 5.5+/-4.6 min at >=90% of HRmax during PLAY, whereas intensity during WALK was <=72% of HRmax. The duration of PLAY was 44.3+/-0.7 min and of WALK 17.0+/-0.7 min (p=0.01). The relative energy expenditure during PLAY was 7.6+/-0.7 kcal/min and during WALK 6.2+/-0.3 kcal/min (p<0.01). The enjoyment of PLAY (VAS 8.7+/-0.1) was higher than that of WALK (VAS 3.9+/-1.8, p=0.01). CONCLUSIONS: Exergaming can be an innovative way of enjoyable high-intensity training. PMID- 29021915 TI - Optical coherence tomography findings in methanol toxicity. AB - BACKGROUND: Methanol toxicity poses a significant public health problem in developing countries, and in Southeast Asia, where the most common source of poisoning is via adulterated liquor in local drinks. Methanol toxicity can have devastating visual consequences and retinal specialists should be aware of the features of this toxic optic neuropathy. The authors report a case of severe systemic methanol toxicity and relatively mild optic neuropathy demonstrating unique retinal changes on optical coherence tomography (OCT). CASE PRESENTATION: A previously healthy student developed ataxia, difficulty breathing and loss of consciousness hours after drinking homemade alcohol while traveling in Indonesia. She was found to have a serum pH of 6.79 and elevated methanol levels. She was treated with intravenous ethanol, methylprednisolone and sodium bicarbonate. When she awoke she had bilateral central scotomas. At presentation, she had central depression on visual field testing. OCT of the retinal nerve fiber layer (RNFL) was normal but ganglion cell layer analysis (GCL) showed highly selective loss of the nasal fibers in both eyes. Further, OCT of the macula demonstrated inner nuclear layer (INL) microcysts in the corresponding area of selective GCL loss in both eyes. CONCLUSIONS: The selective involvement of the papillomacular bundle fibers is common in toxic optic neuropathies and represents damage to the small caliber axons rich in mitochondria. Despite severe systemic toxicity, the relative sparing of the optic nerve in this case enabled characterization of the evolution of methanol toxicity with segmental GCL involvement and preservation of the RNFL, corresponding to the papillomacular bundle. This is the first reported case of INL microcysts in methanol optic neuropathy and supports that they are a non-specific finding, and may represent preferential damage to the papillomacular bundle. PMID- 29021914 TI - Retinoic acid induces white adipose tissue browning by increasing adipose vascularity and inducing beige adipogenesis of PDGFRalpha+ adipose progenitors. AB - Formation of beige adipocytes within white adipose tissue enhances energy expenditure, which is a promising strategy to reduce obesity and prevent metabolic symptoms. Vitamin A and its bioactive metabolite, retinoic acid (RA), have regulatory roles in lipid metabolism. Here we report that RA induces white adipose tissue browning via activating vascular endothelial growth factor (VEGF) signaling. RA triggered angiogenesis and elicited de novo generation of platelet derived growth factor receptor alpha positive (PDGFRalpha+) adipose precursor cells via VEGFA/VEGFR2 signaling. In addition, RA promoted beige/brown adipocyte formation from capillary networks in vitro. Using PDGFRalpha tracking mice, we found that the vascular system acted as an adipogenic repository by containing PDGFRalpha+ progenitors which differentiated into beige adipocytes under RA or VEGF164 treatments. Conditional knockout of VEGF receptors blocked RA-stimulated white adipose tissue browning. Moreover, the VEGFA and RA activated p38MAPK to enhance the binding of RA receptor to RA response elements of the Prdm16 promoter and upregulated Prdm16 transcription. In conclusion, RA induces white adipose tissue browning by increasing adipose vascularity and promoting beige adipogenesis of PDGFRalpha+ adipose progenitors. PMID- 29021916 TI - Vitrectomy in high myopia: a narrative review. AB - Pathologic myopia is associated with degenerative changes of the globe, especially at the posterior pole. Eyes affected by pathologic myopia have higher odds to undergo posterior segment surgery and, in those eyes, vitreoretinal surgery is challenging. Many practical tips and tricks can make the surgical procedures simpler, significantly preventing sight-threatening intra- and post operative complications. Moreover, novel surgical techniques and technological advancements (i.e. ad-hoc instrumentation, minimally invasive vitreoretinal surgery, filters, dye staining, intraoperative optical coherence tomography and 3 dimensional surgery) may play role in highly myopic eyes. The aim of the present work is to review practical tips and tricks, novel surgical techniques and technological advancements. PMID- 29021917 TI - A feasibility pilot using telehealth videoconference monitoring of home-based NMES resistance training in persons with spinal cord injury. AB - INTRODUCTION: The objective of the study was to investigate the feasibility and initial efficacy of telehealth communication in conjunction with surface neuromuscular electrical stimulation (NMES) resistance training (RT) to induce muscle hypertrophy. MATERIALS AND METHODS: This was a home-based setting of within-subject control design of trained vs controlled limbs. Five men with chronic (>1 year postinjury) motor-complete spinal cord injury (SCI) participated in a twice-weekly telehealth videoconference program using home-based NMES-RT for 8 weeks. Stimulation was applied to the knee extensor muscle group of the trained leg, while the untrained leg served as a control. Participants received real-time feedback to ensure a proper setup of electrodes and stimulator to monitor subject safety throughout the entire training session. Magnetic resonance imaging was used to measure cross-sectional areas (CSAs) and intramuscular fat (IMF) of the whole thigh and individual muscle groups. Average two-way travel time, distance traveled in miles and total cost of gas per mile were calculated. RESULTS: Participants had 100% compliance. Trained whole and absolute knee extensor muscle CSA increased by 13% (P=0.002) and 18% (P=0.0002), with no changes in the controlled limb. Absolute knee flexor and adductor CSAs increased by 3% (P=0.02) and 13% (P=0.0001), respectively. Absolute whole thigh and knee extensor IMF CSAs decreased significantly in the trained limb by 14% (P=0.01) and 36% (P=0.0005), respectively, with no changes in controlled limb. DISCUSSION: The pilot work documented that using telehealth communication is a safe, feasible and potentially cost-reducing approach for monitoring home-based NMES-RT in persons with chronic SCI. All trained muscles showed detectable muscle hypertrophy with concomitant decrease in ectopic adipose tissue. PMID- 29021919 TI - Safeguarding the future of independent, academic clinical cancer research in Europe for the benefit of patients. AB - Cancer is a complex disease that is constantly evolving. It is now the most common cause of death in Europe after cardiovascular diseases. There are inequalities among European countries, potentially unsustainable healthcare systems impacting quality of cancer care and increasing number of patients with cancer with rare conditions. Clinical and translational research are the backbone in establishing scientific advances as novel treatments and advancing progress to the benefit of patients. Commercially sponsored clinical trials are responsible for developing new medicines that can treat various disease areas, including cancer. It is important to note, however, that these clinical trials only assess the viability of compounds that are chosen by a commercial entity that funds the entire process. By their design and focus, these trials need to fulfil commercial interests and market expectations, which do not always coincide with patients' needs. As soon or even before novel treatments and compounds obtain formal market authorisation, academia will take these existing and new medicines to further conduct research in order to optimise their use, develop new combinations and with a strong focus on the patients and their needs. Established standard of care most commonly relies on clinical cancer research stemming from non-commercial entities, cooperative groups or academic clinical research. This article provides a consensus on the definition of academic research, illustrates its added value and suggests and calls to European Union institutions to support this type of research for the benefit of patients. PMID- 29021918 TI - Protection of calves by a prefusion-stabilized bovine RSV F vaccine. AB - Bovine respiratory syncytial virus, a major cause of respiratory disease in calves, is closely related to human RSV, a leading cause of respiratory disease in infants. Recently, promising human RSV-vaccine candidates have been engineered that stabilize the metastable fusion (F) glycoprotein in its prefusion state; however, the absence of a relevant animal model for human RSV has complicated assessment of these vaccine candidates. Here, we use a combination of structure based design, antigenic characterization, and X-ray crystallography to translate human RSV F stabilization into the bovine context. A "DS2" version of bovine respiratory syncytial virus F with subunits covalently fused, fusion peptide removed, and pre-fusion conformation stabilized by cavity-filling mutations and intra- and inter-protomer disulfides was recognized by pre-fusion-specific antibodies, AM14, D25, and MPE8, and elicited bovine respiratory syncytial virus neutralizing titers in calves >100-fold higher than those elicited by post-fusion F. When challenged with a heterologous bovine respiratory syncytial virus, virus was not detected in nasal secretions nor in respiratory tract samples of DS2 immunized calves; by contrast bovine respiratory syncytial virus was detected in all post-fusion- and placebo-immunized calves. Our results demonstrate proof-of concept that DS2-stabilized RSV F immunogens can induce highly protective immunity from RSV in a native host with implications for the efficacy of prefusion-stabilized F vaccines in humans and for the prevention of bovine respiratory syncytial virus in calves. PMID- 29021920 TI - Vitamin D and calcium are required at the time of denosumab administration during osteoporosis treatment. AB - To evaluate the differences in outcomes of treatment with denosumab alone or denosumab combined with vitamin D and calcium supplementation in patients with primary osteoporosis. Patients were split into a denosumab monotherapy group (18 cases) or a denosumab plus vitamin D supplementation group (combination group; 23 cases). We measured serum bone alkaline phosphatase (BAP), tartrate-resistant acid phosphatase (TRACP)-5b and urinary N-terminal telopeptide of type-I collagen (NTX) at baseline, 1 week, as well as at 1 month and 2, 4, 8 and 12 months. We also measured bone mineral density (BMD) of L1-4 lumbar vertebrae (L)-BMD and bilateral hips (H)-BMD at baseline and at 4, 8 and 12 months. There was no significant difference in patient background. TRACP-5b and urinary NTX were significantly suppressed in both groups from 1 week to 12 months (except at 12 months for NTX). In the combination group, TRACP-5b was significantly decreased compared with the denosumab monotherapy group at 2 and 4 months (P<0.05). BAP was significantly suppressed in both groups at 2-12 months. L-BMD significantly increased at 8 and 12 months (8.9%) in the combination group and at 4, 8 and 12 months (6.0%) in the denosumab monotherapy group, compared with those before treatment. H-BMD was significantly increased in the combination group (3.6%) compared with the denosumab group (1.2%) at 12 months (P<0.05). Compared with denosumab monotherapy, combination therapy of denosumab with vitamin D and calcium stopped the decrease in calcium caused by denosumab, inhibited bone metabolism to a greater extent, and increased BMD (especially at the hips). PMID- 29021921 TI - Post-transplant lymphoproliferative disorder (PTLD): single institutional experience of 141 patients. AB - BACKGROUND: Post-transplant lymphoproliferative disorder is a well-recognized but rare complication of hematopoietic stem cell and solid organ transplant. Due to rarity of this disease, retrospective studies from major transplant centers has been the main source to provide treatment guidelines, which are still in evolution. The sample size of this study is among one of the largest study on PTLD till date reported throughout the world. METHODS: This study was performed at University of Florida which is one of the largest transplant center in South East United States. We performed treatment and survival analysis along with univariate and multivariate analysis to identify prognostic factors. RESULTS: We reviewed 141 patients diagnosed with PTLD over last 22 years with median follow up of 2.4 years. The estimated median overall survival of the entire group was 15.0 years. Sub group analysis showed that 5-year overall survival rates of pediatric population were 88% (median not reached). For adults, median OS was 5.35 years while for elderly patients it was 1.32 years. The estimated median OS of patients with monomorphic PTLD was 9.0 years while in polymorphic PTLD was 19.3 years. Univariate analysis identified gender, age at transplant and PTLD diagnosis, performance status, IPI score, allograft type, recipient EBV status, multiple acute rejections prior to PTLD diagnosis, PTLD sub-type, extra-nodal site involvement, immunosuppressive drug regimen at diagnosis, initial treatment best response were statistically significant prognostic factors (p < 0.05). On multivariate analysis, age at PTLD diagnosis, recipient EBV status, bone marrow involvement, and initial best response were statistically significant prognostic factors (p < 0.05). Surprisingly, use of Rituximab alone as upfront therapy had poor hazard ratio in the cumulative group as well less aggressive PTLD subgroup comprising of early lesions and polymorphic PTLD. CONCLUSIONS: Our experience with treatment and analysis of outcomes does challenge current role of Rituximab use in treatment of PTLD. Currently as we define role of immunotherapy in cancer treatment, the role of acute rejections and immunosuppressant in PTLD becomes more relevant as noticed in our study. This study was also able to find new prognostic factors and also verified other known prognostic factors. PMID- 29021922 TI - Texture Feature Variability in Ultrasound Video of the Atherosclerotic Carotid Plaque. AB - The objective of this paper was to investigate texture feature variability in ultrasound video of the carotid artery during the cardiac cycle in an attempt to define new discriminatory biomarkers of the vulnerable plaque. More specifically, in this paper, 120 longitudinal ultrasound videos, acquired from 40 normal (N) subjects from the common carotid artery and 40 asymptomatic (A) and 40 symptomatic (S) subjects from the proximal internal carotid artery were investigated. The videos were intensity normalized and despeckled, and the intima media complex (IMC) (from the N subjects) and the atherosclerotic carotid plaques (from the A and S subjects) were segmented from each video, in order to extract the M-mode image, and the texture features associated with cardiac states of systole and diastole. The main results of this paper can be summarized as follows: 1) texture features varied significantly throughout the cardiac cycle with significant differences identified between the cardiac systolic and cardiac diastolic states; 2) gray scale median was significantly higher at cardiac systole versus diastole for the N, A, and S groups investigated; 3) plaque texture features extracted during the cardiac cycle at the systolic and diastolic states were statistically significantly different between A and S subjects (and can thus be used to discriminate between A and S subjects successfully). The combination of systolic and diastolic features yields better performance than those alone. It is anticipated that the proposed system may aid the physician in clinical practice in classifying between N, A, and S subjects using texture features extracted from ultrasound videos of IMC and carotid artery plaque. However, further evaluation has to be carried out with more videos and additional features. PMID- 29021923 TI - Toward a Personalized Real-Time Diagnosis in Neonatal Seizure Detection. AB - The problem of creating a personalized seizure detection algorithm for newborns is tackled in this paper. A probabilistic framework for semi-supervised adaptation of a generic patient-independent neonatal seizure detector is proposed. A system that is based on a combination of patient-adaptive (generative) and patient-independent (discriminative) classifiers is designed and evaluated on a large database of unedited continuous multichannel neonatal EEG recordings of over 800 h in duration. It is shown that an improvement in the detection of neonatal seizures over the course of long EEG recordings is achievable with on-the-fly incorporation of patient-specific EEG characteristics. In the clinical setting, the employment of the developed system will maintain a seizure detection rate at 70% while halving the number of false detections per hour, from 0.4 to 0.2 FD/h. This is the first study to propose the use of online adaptation without clinical labels, to build a personalized diagnostic system for the detection of neonatal seizures. PMID- 29021924 TI - Large Unilateral Adrenal Mass with Surrounding Brown Fat: A Case Report. AB - Pheochromocytomas are rare tumors derived from chromaffin cells located in the adrenal and extra adrenal tissues. Pheochromocytomas are diagnosed biochemically and localized using different imaging modalities. The definitive management is surgical resection. Brown adipose tissues are normally present during fetal development, with regression over time. Brown adipose tissues are thermogenic and usually located in the neck, mediastinum, and retroperitoneum. Here, we report a case of a unilateral pheochromocytoma surrounded by brown fat. The abnormal stimulation of brown fat noted on positive emission tomography scan (PET) resolved after the pheochromocytoma was resected. PMID- 29021925 TI - Acetazolamide: Treatment of Psychogenic Polydipsia. AB - We are reporting a case of psychogenic polydipsia from a State of Ohio psychiatric hospital. The patient has a known five-year history of psychogenic polydipsia with recurrent hyponatremia and has been diagnosed with schizoaffective disorder bipolar type 1, according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria, for the past two decades. There was a marked improvement with the use of acetazolamide, resulting in a decreased compulsion to drink fluid and improvement of his hyponatremia. The patient was observed for six months. We evaluated the water balance of the patient with diurnal weight measurements (DWG) and a weekly comprehensive metabolic panel (CMP) to monitor Na+ levels. His symptoms and hyponatremia were improved with acetazolamide. The treatment was well tolerated without any adverse effects and improved his quality of life. PMID- 29021926 TI - Enigma of Extrapulmonary Tuberculosis: Where Do We Stand? AB - Tuberculosis remains a worldwide public health concern. Atypical extrapulmonary presentations may delay its diagnosis and treatment. The present study illustrates the importance of ruling out extrapulmonary tuberculosis in patients presenting with nonspecific symptoms of abdominal diseases. Furthermore, we discuss the variety of clinical presentations, diagnostic challenges, current therapeutic protocols, and prognostic factors associated with extrapulmonary tuberculosis. Early diagnosis and effective treatment may decrease morbidity and mortality in such patients. PMID- 29021927 TI - Split Femoral Nerve Due to Psoas Tertius Muscle: A Review with Other Cases of Variant Muscles Traversing the Femoral Nerve. AB - Leg pain from lumbar disc herniation is a common presentation. However, certain muscular and peripheral nerve variants may present similarly and represent an unrecognized etiology of femoral nerve dysfunction. Such cases might affect the outcome of specific treatment regimes. Therefore, recognition of these variations in anatomy may be useful to the clinician when treating the patient with medically refractory lower limb pain. Some reports have reported variant slips of the psoas and iliacus muscles, which may split the femoral nerve causing a potential risk for nerve entrapment. Herein, we report a very unusual variant of the psoas muscles, the psoas tertius, which pierced the femoral nerve into two parts. Additionally, the literature of other similar muscle variants is reviewed. Clinicians should be aware of anatomical muscular variants of the posterior abdominal wall and the propensity of such anomalies to result in distortion of regional neural structures. In this regard, the anatomy of the psoas tertius should be known. PMID- 29021928 TI - Bravo(r) Capsule Aspiration: A Rare Case Report. AB - Bravo(r) capsule (BC) (Medtronic, Minneapolis, MN) endoscopy is a reliable, viable, and well-tolerated diagnostic modality for resistant gastroesophageal reflux disease (GERD). Common complications of the procedure include early dislodgment, poor transmission, and premature removal due to intractable pain, while aspiration of the capsule is exceedingly rare. This paper reports a case of BC aspiration in a 52-year-old female who presented after being ventilated when her oxygen saturation dropped. The initial chest radiograph revealed that the BC was in the right main bronchus; the site was further elaborated by flexible endoscopy and the capsule was found to be in the right lower lobe bronchus distal to the bronchus intermedius. This was followed by a rigid bronchoscopy and extraction of the capsule with rigid grasper forceps. Although this occurs rarely, immediate endotracheal intubation and ventilator support is the preferred emergency step in such cases until bronchoscopic removal can be performed. PMID- 29021929 TI - Rare Presentation of a Posterior Mediastinal Cystic Schwannoma as a Large Pleural Effusion. AB - A 46-year-old man presented with shortness of breath and recurrent, left-sided pleural effusions. A computed tomography (CT) scan of the chest showed a large, left-sided pleural effusion with a mass in the posterior mediastinum. A pleural tap showed lymphocytic exudate. The biopsy of the mass was inconclusive. A left posterolateral thoracotomy was performed, which showed a large posterior mediastinal mass adherent to the left lung. The mass was completely excised and the histopathology proved it to be giant predominantly cystic schwannoma. The pleural effusion resolved after tumor resection. PMID- 29021930 TI - Computer-Assisted Learning Applications in Health Educational Informatics: A Review. AB - Computer-assisted learning (CAL) as a health informatics application is a useful tool for medical students in the era of expansive knowledge bases and the increasing need for and the consumption of automated and interactive systems. As the scope and breadth of medical knowledge expand, the need for additional learning outside of lecture hours is becoming increasingly important. CAL can be an impactful adjunct to conventional methods that currently exist in the halls of learning. There is an increasing body of literature that suggests that CAL should be a commonplace and the recommended method of learning for medical students. Factors such as technical issues that hinder the performance of CAL are also evaluated. We conclude by encouraging the use of CAL by medical students as a highly beneficial method of learning that complements and enhances lectures and provides intuitive, interactive modulation of a self-paced curriculum based on the individual's academic abilities. PMID- 29021931 TI - In-silico combinatorial design and pharmacophore modeling of potent antimalarial 4-anilinoquinolines utilizing QSAR and computed descriptors. AB - There are very few studies for combinatorial library design and high throughput screening of 4-anilinoquinoline antimalarial compounds having activities against parasitic strain of P. falciparum. Therefore, an attempt has been made in the present paper to design potent lead compounds in this congener utilizing quantitative structure activity relationship utilizing theoretical molecular descriptors. QSAR models for a series of 4-anilinoquinolines considering various theoretical molecular descriptors including topological, constitutional, geometrical, functional group and atom-centered fragments has been carried out by stepwise forward-backward variable selections assimilating multiple linear regression (MLR) methods showing the topological indices contribute maximum impact on parasitic P. falciparum strain. A combinatorial library of 2160 compounds has been generated and finally, 16 compounds were screened through high throughput screening as promising 4-anilinoquinoline antimalarial hits based on their predicted activities utilizing topological descriptor based validated QSAR model. Highly predicted active compounds were then undergone for pharmacophore modeling to predict mode of binding and to optimize leads having greater affinity towards malarial P. falciparum parasitic strain. PMID- 29021932 TI - An Evaluation of Lag Schedules of Reinforcement During Functional Communication Training: Effects on Varied Mand Responding and Challenging Behavior. AB - We evaluated the effects of lag schedules of reinforcement during functional communication training (FCT) on the varied use of mands and challenging behavior by two individuals diagnosed with autism. Specifically, we compared the effects of Lag 0 and Lag 1 schedules of reinforcement during FCT. The results showed that each participant exhibited increases in varied mand responding during FCT with the Lag 1 schedule of reinforcement relative to Lag 0; challenging behavior remained low during both FCT lag conditions relative to baseline. Results are discussed in terms of treatment implications relating to FCT and the potential prevention and/or mitigation of clinical relapse during challenges to treatment. PMID- 29021933 TI - A Survey-Based Method to Evaluate Optimal Treatment Selection for Escape Maintained Problem Behavior. AB - Geiger, Carr, and LeBlanc (2010) developed a decision-making model for escape maintained problem behavior that could be used to guide the course of treatment selection. We used a digital survey to evaluate the model's potential usefulness. We presented novice and expert practitioners' written hypothetical scenarios and asked them to determine the optimal treatment in a given situation. Some participants were given the model, whereas others were instructed to use their best clinical judgment. Using logistic regression analyses, the general findings for our scenarios were the following: (a) experts without the aid of a decision model had better odds of selecting the optimal treatment than novices without the decision model, (b) experts with the decision model did not have greater odds of selecting optimal treatment than experts without the model, and PMID- 29021934 TI - The Effects of Bug-in-Ear Coaching on Pre-Service Behavior Analysts' Use of Functional Communication Training. AB - Behavior analysts play an important role in supporting the behavior and learning of young children with disabilities in natural settings. However, there is very little research related specifically to developing the skills and competencies needed by pre-service behavior analysts. This study examined the effects of "bug in-ear" (BIE) coaching on pre-service behavior analysts' implementation of functional communication training with pre-school children with autism in their classrooms. BIE coaching was associated with increases in the rate of functional communication training trials each intern initiated per session and in the fidelity with which interns implemented functional communication training. Adults created more intentional opportunities for children to communicate, and adults provided more systematic instruction around those opportunities. PMID- 29021935 TI - Preliminary Evidence on the Efficacy of Mindfulness Combined with Traditional Classroom Management Strategies. AB - The current case study combined mindfulness-based strategies with a classroom behavior management treatment package, to assist teachers with managing 3rd grade student behaviors. Two teachers (Classroom teacher and Specials teacher) and six students within the same classroom were observed using a 5-min momentary time sampling procedure. A delayed multiple baseline across settings (e.g., Classroom teacher, Specials teacher) design was used to assess student behaviors across baseline (A), classroom behavior management treatment package (CBM) (B), CBM plus mindfulness (C), and CBM plus mindfulness and self-monitoring (D). Behavioral treatment alone increased on-task behaviors for four of six (66%) students compared to baseline; however, five of six (83%) students increased and sustained high rates of on-task behaviors when mindfulness exercises were added to the behavior analytic techniques. These preliminary results support the combination of mindfulness-based strategies with traditional behavior analytic interventions for increasing student on-task behaviors in classroom settings. PMID- 29021936 TI - Utilizing PEAK Relational Training System to Teach Visual, Gustatory, and Auditory Relations to Adults with Developmental Disabilities. AB - Two multiple baseline designs were conducted across participants to determine if the promoting the emergence of advanced knowledge (PEAK) equivalence module was an effective tool in teaching adults with autism relationships between stimuli. More specifically, a transitivity program utilizing the gustatory sensory modality was implemented. Stimuli were selected and probed initially preceding the training. First, gustatory stimuli to a visual picture were trained. Then, a visual picture to a spoken word was trained. Finally, once mastery criterion was reached, each participant's responding was tested to determine whether there were derived relations following training. Results showed that all three participants reached mastery criterion in training sessions and were able to derive new relations without direct training. PMID- 29021937 TI - Recommendations for Identifying Sleep Problems and Treatment Resources for Children with Autism Spectrum Disorder. AB - Many young children experience sleep problems that may influence their daytime functioning. These sleep problems are especially prevalent in young children with autism spectrum disorder (ASD). Therefore, general recommendations for identifying and treating sleep problems in children with ASD are needed for behavior analysts to identify potential sleep problems and make empirically informed decisions regarding treatment options. The current paper seeks to provide behavior analysts, who work with children with ASD, with informative research on pediatric sleep problems, sleep measures, and options for behavioral sleep treatment. PMID- 29021939 TI - Automating Phase Change Lines and Their Labels Using Microsoft Excel(R). AB - Many researchers have rallied against drawn in graphical elements and offered ways to avoid them, especially regarding the insertion of phase change lines (Deochand, Costello, & Fuqua, 2015; Dubuque, 2015; Vanselow & Bourret, 2012). However, few have offered a solution to automating the phase labels, which are often utilized in behavior analytic graphical displays (Deochand et al., 2015). Despite the fact that Microsoft Excel(r) is extensively utilized by behavior analysts, solutions to resolve issues in our graphing practices are not always apparent or user-friendly. Considering the insertion of phase change lines and their labels constitute a repetitious and laborious endeavor, any minimization in the steps to accomplish these graphical elements could offer substantial time savings to the field. The purpose of this report is to provide an updated way (and templates in the supplemental materials) to add phase change lines with their respective labels, which stay embedded to the graph when they are moved or updated. PMID- 29021938 TI - Are Brazilian Behavior Analysts Publishing Outside the Box? A Survey of General Science Media. AB - Recent studies have stressed the importance of disseminating behavior analysis to a more diverse audience and have provided ways to do so effectively. General science publications offer an attractive venue for communicating with a scientifically educated public. The present study examines behavior analysis research published in Science Today and Research Fapesp, monthly general science publications published by the Brazilian Society for the Advancement of Science and Sao Paulo Research Foundation, respectively. Behavior analytic terms were searched in issues published from 2003 to 2014, along with psychoanalytic terms as a comparative measure. Only 13 behavior analysis articles were found, while psychoanalytic articles totaled 150. Six of the behavior analysis articles misconstrue fundamental concepts of behavior analysis. The study recommends that behavior analysis researchers extend the dissemination of their findings outside the box. PMID- 29021940 TI - Using Video to Bridge the Gap Between Problem Behavior and a Delayed Time-out Procedure. AB - Treatment plans focused on problem behavior often include punishment contingencies to decrease problem behavior. Immediate punishers are typically more effective than delayed punishers, but immediate delivery of a punisher is not always possible. Strategies need to be developed to increase the suppressive effects of delayed punishers. This study demonstrated the effectiveness of a treatment package involving replaying a video recording of problem behavior immediately before delivering a 15 min delayed time-out. This treatment package may prove to be an accessible and inexpensive strategy when using delayed punishers. PMID- 29021941 TI - An Evaluation of Differential Observing Responses During Receptive Label Training. AB - The current study compared the use of a differential observing response (DOR) during receptive label training to a condition without the DOR. We extended the research on DORs used during receptive label training by using them with progressive prompt delay procedures and assessing responding following mastery without the DOR. Results indicated that both participants performed better in the DOR condition during the first comparison, but results were less clear in the second comparison. PMID- 29021942 TI - Improving Pre-Service Teachers' Performance Skills Through Behavioral Skills Training. AB - In higher education, instruction that incorporates effective performance skills training is vital to equipping pre-service teachers with the tools they will use to educate children. This study evaluated the effects of behavioral skills training (BST) on performance of evidence-based practices by undergraduate pre service special education teachers. A pre-post design was used to evaluate performance during role-play. BST sessions produced higher levels of correct performance than baseline measures across all seven participants. We discuss limitations of these results with suggestions for future research, along with recommendations for incorporating BST into university settings. PMID- 29021943 TI - Application of a Pyramidal Training Model on the Implementation of Trial-Based Functional Analysis: a Partial Replication. AB - We employed a pyramidal training model (PTM) to teach staff to correctly implement and collect data for trial-based functional analysis (TBFA) in simulated situations. First, we trained four behavioral consultants (BCs) in a group format, who each trained one behavior technician (BT) in an individual format. We utilized a non-concurrent multiple baseline design to evaluate the effect of the training. During generalization probes, participants implemented TBFA with a novel problem behavior. This study will contribute to the literature on teaching staff how to conduct TBFA. This study demonstrates the application of a two-level PTM. This study illustrates how agencies can utilize the Task Analysis Training Protocol within a PTM to train staff on implementation of TBFA. PMID- 29021944 TI - A Program Evaluation of Home and Center-Based Treatment for Autism Spectrum Disorder. AB - The present study aimed to retrospectively compare the relative rates of mastery of exemplars for individuals with ASD (N = 313) who received home-based and center-based services. A between-group analysis found that participants mastered significantly more exemplars per hour when receiving center-based services than home-based services. Likewise, a paired-sample analysis found that participants who received both home and center-based services had mastered 100 % more per hour while at the center than at home. These analyses indicated that participants demonstrated higher rates of learning during treatment that was provided in a center setting than in the participant's home. PMID- 29021945 TI - An Evaluation of Instructive Feedback to Teach Play Behavior to a Child with Autism Spectrum Disorder. AB - Instructive feedback is used to expose learners to secondary targets during skill acquisition programs (Reichow & Wolery, in Journal of Applied Behavior Analysis, 44, 327-340, 2011; Werts, Wolery, Gast, & Holcombe, in Journal of Behavioral Education, 5, 55-75, 1995). Although unrelated feedback may have clinical utility in practice, very little research has evaluated unrelated instructive feedback, particularly for promoting play behavior (Colozzi, Ward, & Crotty, in Education and Training in Developmental Disabilities, 43, 226-248, 2008). The purpose of the study was to determine if play emerged after embedding instructive feedback during the consequence portion of discrete trial training to teach tacts. An adapted alternating treatments design was used to compare tact training with and without instructive feedback for play behaviors. Instructive feedback resulted in the emergence of play behaviors during tabletop instruction and a play area of a classroom. We discuss the results in terms of clinical practice and future research. PMID- 29021946 TI - Predictors of pneumococcal carriage and the effect of the 13-valent pneumococcal conjugate vaccination in the Western Australian Aboriginal population. AB - BACKGROUND: The 7-valent pneumococcal conjugate vaccine (PCV7) was introduced to prevent invasive pneumococcal disease (IPD) in Western Australian (WA) Aboriginal people in 2001. PCV13 replaced PCV7 in July 2011, covering six additional pneumococcal serotypes; however, IPD rates remained high in Aboriginal people in WA. Upper respiratory tract pneumococcal carriage can precede IPD, and PCVs alter serotype distribution. METHODS: To assess the impact of PCV13 introduction, identify emerging serotypes, and assess risk factors for carriage, nasopharyngeal swabs and information on demographic characteristics, health, medication and living conditions from Aboriginal children and adults across WA from August 2008 to November 2014 were collected. Bacteria were cultured using selective media and pneumococcal isolates were serotyped by Quellung reaction. Risk factors were analysed by multivariable logistic regression. RESULTS: One thousand five hundred swabs pre- and 1385 swabs post-PCV13 introduction were collected. Pneumococcal carriage was detected in 66.8% of children <5 years old and 53.2% of 5-14 year olds post-PCV13, compared with pre-PCV13 prevalence of 72.2% and 49.4%, respectively. The prevalence of PCV13-non-PCV7 serotypes decreased in children <5 years old from 13.5% pre-PCV13 to 5.8% post-PCV13 (p < 0.01), and from 8.4% to 6.1% in children 5-14 years old (p > 0.05). The most common serotypes post-PCV13 were 11A (prevalence 4.0%), 15B (3.5%), 16F (3.5%), and 19F (3.2%). Risk of detection of pneumococcal carriage increased until age 12 months (odds ratio [OR] 4.19, 95% confidence interval [CI] 2.39-7.33), with nasal discharge (OR 2.49 [95% CI 2.00-3.09]), residence in a remote community (OR 2.21 [95% CI 1.67-2.92]) and household crowding (OR 1.36 [95% CI 1.11-1.67]). Recent antibiotic use was negatively associated with pneumococcal carriage (OR 0.48 [95% CI 0.33-0.69]). Complete resistance to penicillin was present among isolates of serotypes 19A (6.0%), 19F (2.3%) and non-serotypeable isolates (1.9%). Serotype 23F and newly emerged serotype 7B isolates showed high rates of resistance to cotrimoxazole, erythromycin and tetracycline (86.9%, 86.9%, 82.0%, respectively for 23F, 100.0%, 100.0% and 93.3% for 7B). CONCLUSION: Since PCV13 replaced PCV7, carriage of PCV13-non-PCV7 serotypes decreased significantly among children <5 years old, those most likely to have received PCV13, and to a lesser extent in older people. Known risk factors for carriage including crowding and young age remain in the Aboriginal population. PMID- 29021947 TI - Health symptoms in residents living near shale gas activity: A retrospective record review from the Environmental Health Project. AB - Increasing evidence demonstrates an association between health symptoms and exposure to unconventional natural gas development (UNGD). The purpose of this study is to describe the health of adults in communities with intense UNGD who presented for evaluation of symptoms. Records of 135 structured health assessments conducted between February 2012 and October 2015 were reviewed retrospectively. Publicly available data were used to determine proximity to gas wells. Analysis was restricted to records of adults who lived within 1 km of a well in Pennsylvania and denied employment in the gas industry (n = 51). Symptoms in each record were reviewed by a physician. Symptoms that could be explained by pre-existing or concurrent conditions or social history and those that began or worsened prior to exposure were excluded. Exposure was calculated using date of well drilling within 1 km. The number of symptoms/participant ranged from 0 to 19 (mean = 6.2; SD = 5.1). Symptoms most commonly reported were: sleep disruption, headache, throat irritation, stress or anxiety, cough, shortness of breath, sinus problems, fatigue, nausea, and wheezing. These results are consistent with findings of prior studies using self-report without physician review. In comparison, our results are strengthened by the collection of health data by a health care provider, critical review of symptoms for possible alternative causes, and confirmation of timing of exposure to unconventional natural gas well relative to symptom onset or exacerbation. Our findings confirm earlier studies and add to the growing body of evidence of the association between symptoms and exposure to UNGD. PMID- 29021948 TI - The association between distance to public amenities and cardiovascular risk factors among lower income Singaporeans. AB - Existing evidence on the association between built environment and cardiovascular disease (CVD) risk factors focused on the general population, which may not generalize to higher risk subgroups such as those with lower socio-economic status (SES). We examined the associations between distance to 5 public amenities from residential housing (public polyclinic, subsidized private clinic, healthier eatery, public park and train station) and 12 CVD risk factors (physical inactivity, medical histories and unhealthy dietary habits) among a study sample of low income Singaporeans aged >= 40 years (N = 1972). Using data from the Singapore Heart Foundation Health Mapping Exercise 2013-2015, we performed a series of logistic mixed effect regressions, accounting for clustering of respondents in residential blocks and multiple comparisons. Each regression analysis used the minimum distance (in km) between residential housing and each public amenity as an independent continuous variable and a single risk factor as the dependent variable, controlling for demographic characteristics. Increased distance (geographical inaccessibility) to a train station was significantly associated with lower odds of participation in sports whereas greater distance to a subsidized private clinic was associated with lower odds of having high cholesterol diagnosed. Increasing distance to park was positively associated with higher odds of less vegetable and fruits consumption, deep fried food and fast food consumption in the preceding week/month, high BMI at screening and history of diabetes, albeit not achieving statistical significance. Our findings highlighted potential effects of health-promoting amenities on CVD risk factors in urban low-income setting, suggesting gaps for further investigations. PMID- 29021949 TI - Correlates of unsuccessful smoking cessation among adults in Bangladesh. AB - Having 21.9 million adult smokers, Bangladesh ranks among the top ten heaviest smoking countries in the world. Correlates of unsuccessful smoking cessation remain unknown. We aimed to identify the correlates of unsuccessful smoking cessation among adults in Bangladesh. We used data from the 2009 Global Adult Tobacco Survey (GATS) for Bangladesh. We compared socio-demographic, belief about health effect of smoking, and environmental characteristics of current smokers who had a recent failed quit attempt during the past 12 months of the survey (unsuccessful quitters) with those former smokers who had quit >= 12 months earlier of the survey and had not relapsed (successful quitters). Data were analyzed using logistic regression model and generalized estimating equations. A total of 1552 smokers (1058 unsuccessful quitters and 494 successful quitters) aged 15 years and older who participated in the survey was included in this study. Among the smokers, 1058 (68%) were unsuccessful quitters. Our analysis showed that older aged, female, and higher educated smokers were less likely to quit unsuccessfully. Moreover, who believed that smoking causes serious illness were also less likely to quit unsuccessfully. For the interaction between place of residence and smoking rules inside home, we found that among the smoker's, in those house smoking was allowed, and who lived in urban place were less likely to be unsuccessful in quitting than those who lived in rural place. Our findings suggest a cessation program that requires integrated approach with a view to considering these findings in setting up. PMID- 29021950 TI - Population levels of, and inequalities in, active travel: A national, cross sectional study of adults in Scotland. AB - This study aimed to describe active travel (walking or cycling) in Scotland and explore potential demographic, geographic, and socio-economic inequalities in active travel. We extracted data for the period 2012-13 (39,585 journey stages) from the Scottish Household Survey. Survey travel diaries recorded all journeys made on the previous day by sampled individuals aged 16 + living within Scotland, and the stages within each journey. Descriptive statistics were calculated for journey stages, mode, purpose and distance. Logistic regression models were fitted to examine the relationship between the likelihood of a journey stage being active, age, sex, area deprivation and urban/rural classification. A quarter of all journey stages were walked or cycled (26%, n: 10,280/39,585); 96% of these were walked. Those living in the least deprived areas travelled a greater average distance per active journey stage than those in the most deprived. The likelihood of an active journey stage was higher for those living in the most deprived areas than for those in the least deprived (Odds Ratio (OR) 1.21, 95% CI 1.04-1.41) and for those in younger compared to older age groups (OR 0.44, 95% CI 0.34-0.58). In conclusion, socio-economic inequalities in active travel were identified, but - contrary to the trends for many health-beneficial behaviours - with a greater likelihood of active travel in more deprived areas. This indicates a potential contribution to protecting and improving health for those whose health status tends to be worse. Walking was the most common mode of active travel, and should be promoted as much as cycling. PMID- 29021951 TI - Marrow signal mimicking tumor on MRI T1-weighted imaging after neoadjuvant chemotherapy in extremity osteosarcomas. AB - PURPOSE: Many studies had demonstrated that MRI T1-weighted imaging was the most accurate method to evaluate the intramedullary extent of extremity osteosarcoma. However, we found that after neoadjuvant chemotherapy new low signal of MRI T1 imaging was detected near tumor, which mimicked the tumor progression. The aim of this study was to describe the incidence and type of this new signal, to reveal the pathological correlation with this imaging change. METHODS: We included 74 extremity osteosarcomas managed between June 2011 and November 2012 in this retrospective study. The T1-weighted MRI images of the affected extremity before and after neoadjuvant chemotherapy were reviewed and compared. The subjects were then classified according to the appearance of the border between the area involved by osteosarcoma and the normal marrow with attention paid to whether the border was continuous and the width of the zone of transition. The study population was classified into one of four classifications: 'clear', 'continuous diffuse', 'discontinuous island-like' and 'discontinuous diffuse'. 11 patients underwent MRI of bilateral extremities, and for these patients we assessed the appearance of the uninvolved extremity with that with osteosarcoma. Following surgical resection of the tumor, the pathologic appearance was compared with the pre-operative MRI findings. RESULTS: According to our classification system, all 74 subjects were 'clear' before neoadjuvant chemotherapy. After neoadjuvant chemotherapy, 30 subjects (40.5%) were still clear. Of the 44 subjects (59.5%) not classified as 'clear', 22 (29.7%) were classified as 'continuous diffuse', 4 (5.4%) as 'discontinuous island-like', and 18 (24.3%) as 'discontinuous diffuse'. Of the subjects with MRI of bilateral femurs, no radiologic difference was noted in the normal marrow bilaterally. No significant difference in overall survival and relapse free survival was noted between patients grouped according to the subtypes of MRI noted. CONCLUSIONS: Neoadjuvant chemotherapy for extremity osteosarcoma can result in a variety of changes of the MRI appearance of tumor and adjacent bone and marrow. Areas of signal change beyond the tumor that represent marrow conversion and not tumor progression appear on T1 weighted imaging to be lower in signal than subcutaneous fat and higher in signal than muscle. Recognizing the existence of the effect of neoadjuvant chemotherapy on the MR appearance of the tumor and surrounding bone and myeloid elements is important so as to plan for oncological sound tumor resections while avoiding resecting more normal bone than necessary. PMID- 29021952 TI - The forgotten view: Chest X-ray - Lateral view. AB - With CT (computed tomography) chest gaining more importance as a diagnostic tool, chest X-ray especially the lateral view is taken less commonly nowadays. Besides CT chest is also proven to be superior to chest X-ray in patients with major blunt trauma. We are presenting a 68-year old male who was partially treated from outside for a left sided pneumonia. He came to our hospital because of persisting chest pain. Chest X-ray, frontal view (postero-anterior) was almost normal except for a mild opacity in the left lower zone. CT scan of the chest revealed a fluid collection posteriorly enclosed within enhancing pleura. Chest X-ray, left lateral view showed a corresponding posterior pleural based opacity. We are presenting this case to highlight the importance of the lateral view of the chest X-ray. In selected cases there is still a role for the lateral view. With the three dimensional visualization provided by the CT, the lateral view of the chest may be easier to understand. Consequent to the initial diagnosis by CT further follow up can be done with the chest X-ray. In a limited way this mitigates unnecessary expenditure and more importantly prevents the patient from exposure to harmful radiation in the form of repeated CT. PMID- 29021953 TI - Bilateral lung disease, extensive and diffuse. Diagnosis of pulmonary alveolar proteinosis by bronchoscopic cryobiopsy. AB - Pulmonary alveolar proteinosis (PAP) is a rare disease characterized by the intra alveolar accumulation of a proteinaceous phospholipid-laden material called surfactant. Clinically, this disease should be suspected with respiratory failure in association with a crazy paving pattern on high-resolution chest computed tomography. We report a 24-year-old gentleman who was referred to us for a history of respiratory failure, treatment with invasive ventilation and tracheostomy. His blood exams and biochemistry were normal. His infectious and rheumatological panel was negative for a secondary disease. A flexible bronchoscopy with a transbronchial biopsy through a CryoProbe was performed. An anatomopathological analysis was periodic acid-Schiff positive for PAP. A CryoProbe is a recently developed diagnostic tool that improves the diagnostic yield in diffuse lung diseases compared to bronchoscopy with transbronchial biopsy. This method should be considered for patients with diffuse lung disease and PAP. PMID- 29021954 TI - Continous Rituximab treatment for recurrent diffuse alveolar hemorrhage in a patient with systemic lupus erythematosus and antiphosholipid syndrome. AB - Diffuse alveolar hemorrhage (DAH) is a rare but potentially fatal complication in systemic lupus erythematosus (SLE). DAH is typically characterized by hemoptysis, dyspnea, new infiltrates on chest x-rays or CT-scans and a drop in hemoglobin. DAH is seen in less than 2% of patients with SLE and carries a high acute mortality risk of up to 70-90%. The current treatment of DAH is high-dose intravenous corticosteroids, cyclophosphamide and extensive supportive care. Plasmapheresis is also often considered in the treatment. A few case reports have described patients with SLE and DAH in whom a single series of Rituximab (RTX), a specific anti-CD20-antigen B-cell antibody, successfully has been used to treat DAH. We here present the first case of a patient with combined SLE, antiphospholipid syndrome (APS) and recurrent DAH who was successfully controlled by continued treatment with RTX. PMID- 29021955 TI - When Christmas decoration goes hand in hand with bronchial aspiration .... AB - We report the case of a 14-month-old girl suffering from cough and wheeze around Christmas. She was treated with anti-asthmatic drugs with no success, and 3 weeks later a chest X-ray revealed a LED bulb in the left main bronchus. This LED bulb came from a Christmas light garland decorating the Christmas tree. We discuss the different Christmas objects that can be inhaled by young children, the challenge to diagnose bronchial inhalation during this winter period, and the emergence of new foreign bodies, such as LED bulbs, with a particularly aerodynamic shape. PMID- 29021957 TI - Whole genome shotgun sequencing of Indian strains of Streptococcus agalactiae. AB - Group B streptococcus is known as a leading cause of neonatal infections in developing countries. The present study describes the whole genome shotgun sequences of four Group B Streptococcus (GBS) isolates. Molecular data on clonality is lacking for GBS in India. The present genome report will add important information on the scarce genome data of GBS and will help in deriving comparative genome studies of GBS isolates at global level. This Whole Genome Shotgun project has been deposited at DDBJ/ENA/GenBank under the accession numbers NHPL00000000 - NHPO00000000. PMID- 29021956 TI - Grey and white matter differences in Chronic Fatigue Syndrome - A voxel-based morphometry study. AB - OBJECTIVE: Investigate global and regional grey and white matter volumes in patients with Chronic Fatigue Syndrome (CFS) using magnetic resonance imaging (MRI) and recent voxel-based morphometry (VBM) methods. METHODS: Forty-two patients with CFS and thirty healthy volunteers were scanned on a 3-Tesla MRI scanner. Anatomical MRI scans were segmented, normalized and submitted to a VBM analysis using randomisation methods. Group differences were identified in overall segment volumes and voxel-wise in spatially normalized grey matter (GM) and white matter (WM) segments. RESULTS: Accounting for total intracranial volume, patients had larger GM volume and lower WM volume. The voxel-wise analysis showed increased GM volume in several structures including the amygdala and insula in the patient group. Reductions in WM volume in the patient group were seen primarily in the midbrain, pons and right temporal lobe. CONCLUSION: Elevated GM volume in CFS is seen in areas related to processing of interoceptive signals and stress. Reduced WM volume in the patient group partially supports earlier findings of WM abnormalities in regions of the midbrain and brainstem. PMID- 29021958 TI - Complete mitochondrial genome sequence of fruit-piercing moth Eudocima phalonia (Linnaeus, 1763) (Lepidoptera: Noctuoidea). AB - The complete mitochondrial genome of the fruit piercing moth Eudocima phalonia (Linnaeus, 1763) (Lepidoptera: Noctuoidea) was sequenced and characterized (Genbank Accession No: KY196412). The complete mitogenome is a circular molecule of 15,575 bp length, consisting of 13 protein-coding genes (PCGs), two ribosomal RNA genes (rrnS and rrnL), 22 transfer RNA (tRNA) genes and an A + T-rich region (D-loop). The nucleotide composition of the genome is highly A + T biased, accounting for 80.67% of nucleotides. All tRNAs have putative secondary structures that are characteristic of mitochondrial tRNA. Most of the PCGs were initiated by typical ATN codons. Five genes were initiated by unusual codons. Cox1 gene was initiated by an unusual CGA codon and terminated by the typical stop codon GAA. Six genes ended with a single T. The A + T-rich region of 336 bp consisted of repetitive sequences, including two ATAGA motifs, a 19 bp poly-T stretch and three microsatellite-like regions ((TA)4, (TA)6 and two (TA)7). Moreover, three large tandem (one 40 bp and two 25 bp) repeated elements were identified in A + T-rich region. Phylogenetic analysis using PCGs revealed that Superfamily Noctuoidea is a monophyletic group. PMID- 29021959 TI - Constrictive pericarditis caused by Cutibacterium (Propionibacterium) acnes: A case report and review of literature. AB - Constrictive and effusive-constrictive pericarditis are rare cardiac disorders. Only rarely are the conditions caused by purulent infection, and even more infrequently by anaerobe bacteria. We describe a case of constrictive - and effusive-constrictive pericarditis due to Cutibacterium (formerly Propionibacterium) acnes in a 75-year old, immunocompetent and previously healthy patient without any predisposition. The patient was successfully treated with subtotal pericardiectomy and beta-lactam antibacterials. C. acnes was the only infectious agent recovered from samples of cultured pericardial tissue. C. acnes is a microaerophilic, Gram-positive anaerobic bacillus that is a part of the normal flora. In symptomatic patients, however, positive samples should be considered as clinically relevant and not dismissed as contamination. Due to the low virulence, the capability of adherence and biofilm formation of C. acnes, diagnosing C. acnes constrictive pericarditis may be difficult. In the context of compatible symptoms, the incubation time of clinical samples should be prolonged or supplemented by polymerase chain reaction techniques. Parenteral beta-lactam antibacterials are considered the drugs of choice. Severe constrictive and effusive-constrictive pericarditis caused by C. acnes is rare, but can be seen even in otherwise healthy patients. Prolonged incubation time and polymerase chain reaction techniques may be required in order to confirm diagnosis. PMID- 29021960 TI - Relapsing EBV encephalitis in a renal transplant recipient. AB - In solid organ transplant recipients, Epstein-Barr virus (EBV) can cause active central nervous system (CNS) infection or malignant transformation of latently infected cells in the CNS, known as post-transplant lymphoproliferative disease (PTLD). Reduction of T-cell immunosuppression is the cornerstone of management. The role of antivirals with in-vitro activity against herpesviruses in EBV related CNS syndromes is controversial, as they have no effect on latent virus. We report an unusual case of relapsing EBV encephalitis in a donor-positive, EBV negative renal transplant recipient, with response to valganciclovir. Our report supports the utility of antiviral treatment for EBV encephalitis, as adjunct to reducing immunosuppression, and highlights the need for a systematic approach and long-term, multi-disciplinary follow-up of such patients. PMID- 29021962 TI - First-year metabolic control guidelines and their impact on future metabolic control and neurocognitive functioning in children with PKU. AB - : There is a consensus on the importance of early and life-long treatment for PKU patients. Still, differences exist on target blood phenylalanine (Phe) concentrations for children with PKU in different countries and treatment centers. For the first time, long-term metabolic control and child development and cognitive functioning is compared between children with mean phenylalanine concentrations under 240 MUmol/L (group A), between 240 and 360 MUmol/L (group B) or over 360 MUmol/L (group C) during their first year of life. METHODS: 70 patients diagnosed with PKU through neonatal screening with Phe > 900 MUmol/L, were divided into 3 groups: A, B and C, according to mean Phe concentrations and standard deviation (SD). Metabolic control during childhood, psychomotor development and IQ were compared. RESULTS: In group A, Phe was maintained within the recommended range until 6 years of age, in Group B, until 3 years of age, and in group C, Phe was always over the recommended range. No significant differences were found between the three groups in mental development index (MDI) and motor development index (PDI) scores at 12, 24, and 30 months of age, but group C had the lowest scores on MDI at all age periods. At preschool and school age, IQ was higher in group A compared to group C. CONCLUSION: Results show that mean blood Phe concentrations between 120 and 240 MUmol/L during first year of life have a positive impact in metabolic control and cognitive functioning during childhood. PMID- 29021963 TI - A case of mucosa-associated lymphoid tissue lymphoma of the bladder successfully treated with radiotherapy. PMID- 29021964 TI - Torsion of ovarian dermoid cyst mimicking obstructing urinary tract stone. PMID- 29021965 TI - Simultaneous metachronous renal cell carcinoma and skeletal muscle metastasis after radical nephrectomy. PMID- 29021966 TI - Testicular hemangioma: A case report. PMID- 29021961 TI - Dietary practices in propionic acidemia: A European survey. AB - BACKGROUND: The definitive dietary management of propionic acidaemia (PA) is unknown although natural protein restriction with adequate energy provision is of key importance. AIM: To describe European dietary practices in the management of patients with PA prior to the publication of the European PA guidelines. METHODS: This was a cross-sectional survey consisting of 27 questions about the dietary practices in PA patients circulated to European IMD dietitians and health professionals in 2014. RESULTS: Information on protein restricted diets of 186 PA patients from 47 centres, representing 14 European countries was collected. Total protein intake [PA precursor-free L-amino acid supplements (PFAA) and natural protein] met WHO/FAO/UNU (2007) safe protein requirements for age in 36 centres (77%). PFAA were used to supplement natural protein intake in 81% (n = 38) of centres, providing a median of 44% (14-83%) of total protein requirement. Seventy four per cent of patients were prescribed natural protein intakes below WHO/FAO/UNU (2007) safe levels in one or more of the following age groups: 0-6 m, 7-12 m, 1-10 y, 11-16 y and > 16 y. Sixty-three per cent (n = 117) of patients were tube fed (74% gastrostomy), but only 22% received nocturnal feeds. CONCLUSIONS: There was high use of PFAA with intakes of natural protein commonly below WHO/FAO/UNU (2007) safe levels. Optimal dietary management can only be determined by longitudinal, multi-centre, prospective case controlled studies. The metabolic instability of PA and small patient cohorts in each centre ensure that this is a challenging undertaking. PMID- 29021967 TI - Small round tumour cells (CD38, CD 79a positive) in the adrenal gland. PMID- 29021968 TI - The Unyvero P55 'sample-in, answer-out' pneumonia assay: A performance evaluation. AB - BACKGROUND: O'Neill's recent Review on Antimicrobial Resistance expressed the view that by 2020 high-income countries should make it mandatory to support antimicrobial prescribing with rapid diagnostic evidence whenever possible. METHODS: Routine microbiology diagnosis of 95 respiratory specimens from patients with severe infection were compared with those generated by the Unyvero P55 test, which detects 20 pathogens and 19 antimicrobial resistance markers. Supplementary molecular testing for antimicrobial resistance genes, comprehensive culture methodology and 16S rRNA sequencing were performed. RESULTS: Unyvero P55 produced 85 valid results, 67% of which were concordant with those from the routine laboratory. Unyvero P55 identified more potential pathogens per specimen than routine culture (1.34 vs. 0.47 per specimen). Independent verification using 16S rRNA sequencing and culture (n = 10) corroborated 58% of additional detections compared to routine microbiology. Overall the average sensitivity for organism detection by Unyvero P55 was 88.8% and specificity was 94.9%. While Unyvero P55 detected more antimicrobial resistance markers than routine culture, some instances of phenotypic resistance were missed. CONCLUSIONS: The Unyvero P55 is a rapid pathogen detection test for lower respiratory specimens, which identifies a larger number of pathogens than routine microbiology. The clinical significance of these additional organisms is yet to be determined. Further studies are required to determine the effect of the test in practise on antimicrobial prescribing and patient outcomes. PMID- 29021969 TI - *K-means and cluster models for cancer signatures. AB - We present *K-means clustering algorithm and source code by expanding statistical clustering methods applied in https://ssrn.com/abstract=2802753 to quantitative finance. *K-means is statistically deterministic without specifying initial centers, etc. We apply *K-means to extracting cancer signatures from genome data without using nonnegative matrix factorization (NMF). *K-means' computational cost is a fraction of NMF's. Using 1389 published samples for 14 cancer types, we find that 3 cancers (liver cancer, lung cancer and renal cell carcinoma) stand out and do not have cluster-like structures. Two clusters have especially high within-cluster correlations with 11 other cancers indicating common underlying structures. Our approach opens a novel avenue for studying such structures. *K means is universal and can be applied in other fields. We discuss some potential applications in quantitative finance. PMID- 29021970 TI - Quantification of mitochondrial DNA copy number in suspected cancer patients by a well optimized ddPCR method. AB - Changes in mitochondrial DNA (mtDNA) content is a useful clinical biomarker for various diseases, however results are controversial as several analytical factors can affect measurement of mtDNA. MtDNA is often quantified by taking ratio between a target mitochondrial gene and a reference nuclear gene (mtDNA/nDNA) using quantitative real time PCR often on two separate experiments. It measures relative levels by using external calibrator which may not be comparable across laboratories. We have developed and optimized a droplet digital PCR (ddPCR) based method for quantification of absolute copy number of both mtDNA and nDNA gene in whole blood. Finally, the role of mtDNA in suspected cancer patients referred to a cancer diagnostic center was investigated. Analytical factors which can result in false quantification of mtDNA have been optimized and both target and reference have been quantified simultaneously with intra- and inter-assay coefficient variances as 3.1% and 4.2% respectively. Quantification of mtDNA show that compared to controls, solid tumors (but not hematologic malignancies) and other diseases had significantly lower copy number of mtDNA. Higher mtDNA (highest quartile) was associated with a significantly lower risk of both solid tumors and other diseases, independent of age and sex. Receiver operating curve demonstrated that mtDNA levels could differentiate controls from patients with solid tumors and other diseases. Quantification of mtDNA by a well optimized ddPCR method showed that its depletion may be a hallmark of general illness and can be used to stratify healthy individuals from patients diagnosed with cancer and other chronic diseases. PMID- 29021971 TI - Evaluation of relative quantification of alternatively spliced transcripts using droplet digital PCR. AB - INTRODUCTION: For the relative quantification of isoform expression, RT-qPCR has been the gold standard for over a decade. More recently, digital PCR is becoming widely implemented, as it is promised to be more accurate, sensitive and less affected by inhibitors, without the need for standard curves. In this study we evaluated RT-qPCR versus RT-droplet digital PCR (ddPCR) for the relative quantification of isoforms in controls and carriers of the splice site mutation BRCA1 c.212+3A>G, associated with increased expression of several isoforms. MATERIALS AND METHODS: RNA was extracted from EBV cell lines of controls and heterozygous BRCA1 c.212+3A>G carriers. Transcript-specific plasmids were available to determine the efficiency, precision, reproducibility and accuracy of each method. RESULTS: Both ddPCR and RT-qPCR were able to accurately quantify all targets and showed the same LOB, LOD and LOQ; also precision and reproducibility were similar. Both techniques have the same dynamic range and linearity at biologically relevant template concentrations. However, a significantly higher cost and workload was required for ddPCR experiments. CONCLUSIONS: Our study recognizes the potential and validity of digital PCR but shows the value of a highly optimized qPCR for the relative quantification of isoforms. Cost efficiency and simplicity turned out to be better for RT-qPCR. PMID- 29021972 TI - Evaluating Factors for Prophylactic Feeding Tube Placement in Gastroesophageal Cancer Patients Undergoing Chemoradiotherapy. AB - PURPOSE: Though better studied in head/neck cancers, there are currently no studies on timing of feeding tube (FT) placement in patients with gastroesophageal cancer. This study sought to discern characteristics of patients who used versus did not use a prophylactic FT (pFT), and also analyzed factors associated with placement of FTs during chemoradiotherapy (CRT). METHODS/MATERIALS: From 1998 to 2013, 1,329 patients underwent neoadjuvant CRT, of which 323 received an FT. Patients for whom FTs were placed prior to treatment due to tumor occlusion or substantial weight loss (n = 130), and those with FTs placed following treatment (n = 43) were excluded. One hundred patients had pFTs placed, and 50 underwent placement during CRT. The following was collected for each patient: demographic/patient information, oncologic/treatment characteristics, and CRT tolerance. RESULTS: No significant differences were found in any parameter between cohorts that used (n = 66) versus did not use a pFT (n = 34); on univariate and multivariate analyses, no pretreatment characteristic associated with using a pFT. When compared with patients who used a pFT (n = 66), those who required an FT during CRT (n = 50) had lower body mass index (p = 0.045), underwent higher-dose radiotherapy (p = 0.003), and received induction chemotherapy (p = 0.031). On multivariate analysis, receipt of induction chemotherapy and greater weight loss and esophagitis during treatment were associated with placement of FTs during CRT (p < 0.05). CONCLUSION: Of our cohort who received pFTs, there were no clinical factors that predicted for their use. Patients must be closely monitored for weight loss and esophagitis when receiving CRT in order to intervene prior to further worsening of toxicities. PMID- 29021974 TI - Role of Low-Molecular-Mass Penicillin-Binding Proteins, NagZ and AmpR in AmpC beta-lactamase Regulation of Yersinia enterocolitica. AB - Yersinia enterocolitica encodes a chromosomal AmpC beta-lactamase under the regulation of the classical ampR-ampC system. To obtain a further understanding to the role of low-molecular-mass penicillin-binding proteins (LMM PBPs) including PBP4, PBP5, PBP6, and PBP7, as well as NagZ and AmpR in ampC regulation of Y. enterocolitica, series of single/multiple mutant strains were systematically constructed and the ampC expression levels were determined by luxCDABE reporter system, reverse transcription-PCR (RT-PCR) and beta-lactamase activity test. Sequential deletion of PBP5 and other LMM PBPs result in a continuously growing of ampC expression level, the beta-lactamse activity of quadruple deletion strain YEDelta4Delta5Delta6Delta7 (pbp4, pbp5, pbp6, and pbp7 inactivated) is approached to the YEDeltaD123 (ampD1, ampD2, and ampD3 inactivated). Deletion of nagZ gene caused two completely different results in YEDeltaD123 and YEDelta4Delta5Delta6Delta7, NagZ is indispensable for YEDelta4Delta5Delta6Delta7 ampC derepression phenotype but dispensable for YEDeltaD123. AmpR is essential for ampC hyperproduction in these two types of strains, inactivation of AmpR notable reduced the ampC expression level in both YEDeltaD123 and YEDelta4Delta5Delta6Delta7. PMID- 29021976 TI - Learning Curves for Laparoscopic Repair of Inguinal Hernia and Communicating Hydrocele in Children. AB - INTRODUCTION: We analyzed the department and surgeon learning curves during implementation of the percutaneous internal ring suturing (PIRS) technique in our department. METHODS: Children proposed for inguinal hernia or communicating hydrocele repair were included (n = 607). After mentorship, all surgeons were free to propose open or PIRS repair. From gathered data, we assessed department and surgeon learning curves through cumulative experience focusing in perioperative complications, conversion, ipsilateral recurrence, postoperative complications, and metachronous hernia, with benchmarks defined by open repair. RESULTS: Department-centered analysis revealed that perioperative complications, conversion, and ipsilateral recurrence rates were higher in the beginning, reaching the benchmarks when each surgeon performed, at least, 35 laparoscopic repairs. Postoperative complications and metachronous hernia rates were independent from learning curves, with the metachronous hernia rate being significantly lower in PIRS patients. During the program, the percentage of males in those operated by PIRS progressively increased reaching the percentage of males, in our sample, when department operated over 230 cases. CONCLUSION: Thirty five laparoscopic cases per surgeon are required for perioperative complications, conversion, and ipsilateral recurrence reach the benchmark. The gap between the percentage of males, in those operated by PIRS and in those proposed for surgery, monitors the confidence of the team in the program. PMID- 29021973 TI - Brucella Rough Mutant Induce Macrophage Death via Activating IRE1alpha Pathway of Endoplasmic Reticulum Stress by Enhanced T4SS Secretion. AB - Brucella is a Gram-negative facultative intracellular pathogen that causes the worldwide zoonosis, known as brucellosis. Brucella virulence relies mostly on its ability to invade and replicate within phagocytic cells. The type IV secretion system (T4SS) and lipopolysaccharide are two major Brucella virulence factors. Brucella rough mutants reportedly induce the death of infected macrophages, which is T4SS dependent. However, the underlying molecular mechanism remains unclear. In this study, the T4SS secretion capacities of Brucella rough mutant and its smooth wild-type strain were comparatively investigated, by constructing the firefly luciferase fused T4SS effector, BPE123 and VceC. In addition, quantitative real-time PCR and western blotting were used to analyze the T4SS expression. The results showed that T4SS expression and secretion were enhanced significantly in the Brucella rough mutant. We also found that the activity of the T4SS virB operon promoter was notably increased in the Brucella rough mutant, which depends on quorum sensing-related regulators of VjbR upregulation. Cell infection and cell death assays revealed that deletion of vjbR in the Brucella rough mutant absolutely abolished cytotoxicity within macrophages by downregulating T4SS expression. This suggests that up-regulation of T4SS promoted by VjbR in rough mutant DeltarfbE contribute to macrophage death. In addition, we found that the Brucella rough mutant induce macrophage death via activating IRE1alpha pathway of endoplasmic reticulum stress. Taken together, our study provide evidence that in comparison to the Brucella smooth wild-type strain, VjbR upregulation in the Brucella rough mutant increases transcription of the virB operon, resulting in overexpression of the T4SS gene, accompanied by the over secretion of effecter proteins, thereby causing the death of infected macrophages via activating IRE1alpha pathway of endoplasmic reticulum stress, suggesting novel insights into the molecular mechanisms associated with Brucella rough mutant-induced macrophage cytotoxicity. PMID- 29021975 TI - Effect of melatonin versus vitamin D as antioxidant and Hepatoprotective agents in STZ-induced diabetic rats. AB - BACKGROUND: Diabetes mellitus (DM) is a serious chronic disease, with multiple complications including hepatopathy associated with imbalance of the oxidative status. The purpose of this study is to observe possible protective effects of vitamin-D and melatonin on glucose profile, antioxidant-oxidant status, lipid peroxidation, and histopathological protection of the liver in streptozotocin induced diabetic rats. METHODS: Eighty three male albino rats were divided into nine groups as follows: G1 (n = 10) Normal control rats; G2 (n = 8) were normal rats treated with melatonin only; G3 (n = 10) were normal rats treated with vitamin D only; G4 (n = 9) were diabetic rats, which received no medications; G5 (n = 8) were diabetic rat treated with insulin only; G6 (n = 10) were diabetic rats treated with melatonin only; G7 (n = 9) were diabetic rats treated with melatonin and insulin; G8 (n = 9) were diabetic rats treated with vitamin D only; G9 (n = 10) were diabetic rats treated with vitamin D and insulin. Two months post treatment, blood was collected to measure: Fasting blood sugar (FBS), glycosylated hemoglobin (HbA1c), fructosamine (FA), total antioxidant capacity (TAC), malondialdahyde (MDA). livers were isolated for histopathological study. RESULTS: As compared to normal rats, our results demonstrate that glucose, fructosamine and HbA1c levels is increased in diabetic groups and declined to lesser levels in treated groups. TAC level of diabetic rats is not significantly changed. Vitamin D administration significantly increased TAC while it is not changed with melatonin either in treated or non-treated groups. The liver of diabetic rats shows only mild focal microvesicular fatty degeneration. The liver of diabetic rats treated with insulin shows degeneration of cell edema in the stroma. The liver of diabetic rats treated with melatonin with or without insulin, exhibited marked improvement. The liver of diabetic rats treated with vitamin D with or without insulin, shows degeneration of cells and edema in the stroma. CONCLUSION: Our results demonstrated the beneficial antioxidant effect of vitamin D administration to normal and diabetic rats as compared to melatonin. Nevertheless, melatonin still shows more therapeutic effect on liver cell injury induced by induction of diabetes. PMID- 29021978 TI - Global Health Teaching in India: A Curricular Landscape. AB - Today, health has transcended national boundaries and become more multifaceted. Global health has evolved as a new paradigm and is recently being identified as a thrust area now in India. Despite an existing need for a standardized global health curriculum, there is little information available on its education and curriculum in medical and health education space. In the Indian context, we are yet to have a fuller picture of the current status, including, content, structure, selection, teaching methods of global health, and how students are evaluated in India. The objective of this study was to map courses relating to studies on global health in India and analyze its mode of delivery. A detailed Internet search was carried out to identify global health courses and analyzed for: (i) whether global health is a part of the teaching curriculum, (ii) mode of teaching, (iii) broad contents, (iv) instructional formats, (v) assessment, and (vi) selection process. It was found that delivery of global health education in India was fragmented with limited focus at the undergraduate and postgraduate levels. Global health teaching was largely based on certificate courses or online courses, with hardly any institutions imparting a distinct global health education program. There is also no definite specification as to which institutes can impart teaching on global health education and what the specific eligibility requirements are. Our analysis suggests that efforts should be directed toward integrating global health education into broader public health curriculum. At the same time, the need for generation of global health leaders, creation of a common forum for addressing merits and demerits of global health issues, as well as creation of more opportunities for placements are recognized. PMID- 29021981 TI - Commentary: CRISPR-Cas Encoding of a Digital Movie into the Genomes of a Population of Living Bacteria. PMID- 29021980 TI - Hydrogen Sulfide: A Worthwhile Tool in the Design of New Multitarget Drugs. AB - H2S is a gaseous molecule able to trigger a plethora of central physiological and pharmacological effects as antioxidant, pro- and anti-inflammatory, pro- and anti nociceptive, neuromodulator, and cytoprotective. The polypharmacology of H2S depends on the wide variety of targets implicated, but, despite the efforts, the mechanisms of action that should clarify its activity are still not completely unrevealed. Nevertheless, many attempts to exploit the multifaceted profile of this molecule have already been accomplished and many chemical entities containing an H2S-releasing pharmacophore have been synthetized. Here we discuss recent investigations on multitarget molecules able to release H2S, with a particular focus on the combinations of "native drug" with moieties structurally able to release H2S and their applications as therapeutic tools in bone disease, gastrointestinal system and neurodegenerative disorders. PMID- 29021979 TI - Everybody Brush! Consumer Satisfaction with a Tooth Decay Prevention Program. AB - INTRODUCTION: Twice-daily caregiver-supervised toothbrushing with fluoridated toothpaste is an effective and widely recommended strategy to prevent tooth decay in children. Qualitative research suggests that low-income caregivers know the recommendation but would benefit from toothbrushing supplies and advice about how to introduce this health behavior especially as the child becomes older and asserts autonomy to do it "myself." Our objective is to assess consumer satisfaction with the evidence-based theory-informed campaign and usefulness of materials that were home delivered. The focus of the evaluation was families with children <36 months of age because of the high incidence of disease in this population. METHODS: A dental care organization designed and implemented Everybody Brush! in three counties of Central Oregon. Participants were families of Medicaid-insured children <21 years of age. Participants were randomly assigned to one of the three study groups: test (supplies, voice/printed messages, telephone support), active (supplies), and a waitlist control. Program materials were in English and Spanish. Caregivers of children <36 months were interviewed at the beginning and end of the program. RESULTS: A total of 83,148 toothbrushing kits were mailed to 21,743 families. In addition, 93,766 printed messages and 110,367 recorded messages were sent to half of the families. Caregivers were highly satisfied. On a global rating scale from 0 to 10 (worst to best program possible), they rated the program 9.5 on average (median: 10, SD 0.9). On a scale from 0 to 10 (not at all to very useful), mean ratings for usefulness of the toothbrushing supplies was 9.5 (SD = 1.5), for the printed postcard messages was 7.2 (SD 3.6), and for the voice telephone messages was 6.5 (SD 3.9). DISCUSSION: A dental care organization carried out a complex community intervention designed to address excess tooth decay among low-income children. Caregivers were highly satisfied with the Everybody Brush! program and toothbrushing supplies were considered the most useful, followed by printed messages. Voice telephone messages were rated least useful. Further evaluation of the impact of the program on toothbrushing behavior and dental-care utilization is underway. PMID- 29021977 TI - The Consensus from the Mycobacterium avium ssp. paratuberculosis (MAP) Conference 2017. AB - On March 24 and 25, 2017 researchers and clinicians from around the world met at Temple University in Philadelphia to discuss the current knowledge of Mycobacterium avium ssp. paratuberculosis (MAP) and its relationship to human disease. The conference was held because of shared concern that MAP is a zoonotic bacterium that poses a threat not only to animal health but also human health. In order to further study this problem, the conferees discussed ways to improve MAP diagnostic tests and discussed potential future anti-MAP clinical trials. The conference proceedings may be viewed on the www.Humanpara.org website. A summary of the salient work in this field is followed by recommendations from a majority of the conferees. PMID- 29021982 TI - Autologous Periosteum-Derived Micrografts and PLGA/HA Enhance the Bone Formation in Sinus Lift Augmentation. AB - Sinus lift augmentation is a procedure required for the placement of a dental implant, whose success can be limited by the quantity or quality of available bone. To this purpose, the first aim of the current study was to evaluate the ability of autologous periosteum-derived micrografts and Poly(lactic-co-glycolic acid) (PLGA) supplemented with hydroxyl apatite (HA) to induce bone augmentation in the sinus lift procedure. Secondly, we compared the micrograft's behavior with respect to biomaterial alone, including Bio-Oss(r) and PLGA/HA, commercially named Alos. Sinus lift procedure was performed on 24 patients who required dental implants and who, according to the study design and procedure performed, were divided into three groups: group A (Alos + periosteum-derived micrografts); group B (Alos alone); and group C (Bio-Oss(r) alone). Briefly, in group A, a small piece of periosteum was collected from each patient and mechanically disaggregated by Rigenera(r) protocol using the Rigeneracons medical device. This protocol allowed for the obtainment of autologous micrografts, which in turn were used to soak the Alos scaffold. At 6 months after the sinus lift procedure and before the installation of dental implants, histological and radiographic evaluations in all three groups were performed. In group A, where sinus lift augmentation was performed using periosteum-derived micrografts and Alos, the bone regeneration was much faster than in the control groups where it was performed with Alos or Bio-Oss(r) alone (groups B and C, respectively). In addition, the radiographic evaluation in the patients of group A showed a radio opacity after 4 months, while after 6 months, the prosthetic rehabilitation was improved and was maintained after 2 years post-surgery. In summary, we report on the efficacy of periosteum-derived micrografts and Alos to augment sinus lift in patients requiring dental implants. This efficacy is supported by an increased percentage of vital mineralized tisssue in the group treated with both periosteum derived micrografts and Alos, with respect to the control group of Alos or Bio Oss(r) alone, as confirmed by histological analysis and radiographic evaluations at 6 months from treatment. PMID- 29021983 TI - An Integrated Framework for Process-Driven Model Construction in Disease Ecology and Animal Health. AB - Process models that focus on explicitly representing biological mechanisms are increasingly important in disease ecology and animal health research. However, the large number of process modelling approaches makes it difficult to decide which is most appropriate for a given disease system and research question. Here, we discuss different motivations for using process models and present an integrated conceptual analysis that can be used to guide the construction of infectious disease process models and comparisons between them. Our presentation complements existing work by clarifying the major differences between modelling approaches and their relationship with the biological characteristics of the epidemiological system. We first discuss distinct motivations for using process models in epidemiological research, identifying the key steps in model design and use associated with each. We then present a conceptual framework for guiding model construction and comparison, organised according to key aspects of epidemiological systems. Specifically, we discuss the number and type of disease states, whether to focus on individual hosts (e.g., cows) or groups of hosts (e.g., herds or farms), how space or host connectivity affect disease transmission, whether demographic and epidemiological processes are periodic or can occur at any time, and the extent to which stochasticity is important. We use foot-and-mouth disease and bovine tuberculosis in cattle to illustrate our discussion and support explanations of cases in which different models are used to address similar problems. The framework should help those constructing models to structure their approach to modelling decisions and facilitate comparisons between models in the literature. PMID- 29021984 TI - MRI Findings of Early-Stage Hyperacute Hemorrhage Causing Extramedullary Compression of the Cervical Spinal Cord in a Dog with Suspected Steroid Responsive Meningitis-Arteritis. AB - A 9-month-old female Weimaraner was presented to the emergency service due to episodes of fever and neck pain. Physical examination revealed a stiff neck posture and elevated body temperature. Shortly after clinical examination was performed, the dog developed peracute onset of non-ambulatory tetraparesis compatible with a C1-C5 spinal cord (SC) lesion. Immediately thereafter (<1 h), MRI of the cervical SC was performed with a 3-T scanner. A left ventrolateral intradural-extramedullary SC compression caused by a round-shaped structure at the level of C3--C4 was evidenced. The structure was iso- to slightly hyperintense in T1-weighted (T1W) sequences compared to SC parenchyma and hyperintense in T2-weighted, gradient echo, and fluid-attenuated inversion recovery. Moreover, the structure showed a strong homogeneous contrast uptake in T1W sequences. Cerebrospinal fluid (CSF) analysis revealed a mixed pleocytosis, as well as elevated protein and erythrocyte count. Early-stage hyperacute extramedullary hemorrhage was suspected due to immune mediated vasculitis. The dog was maintained under general anesthesia and artificial ventilation for 24 h and long-term therapy with corticosteroids and physiotherapy was initiated. Eight weeks after initial presentation, the dog was ambulatory, slightly tetraparetic. Follow-up MRI showed a regression of the round-shaped structure and pleocytosis was not evident in CSF analysis. This report describes an early-stage hyperacute extramedullary hemorrhage, a condition rarely recorded in dogs even in experimental settings. PMID- 29021985 TI - Turbo-Satori: a neurofeedback and brain-computer interface toolbox for real-time functional near-infrared spectroscopy. AB - Turbo-Satori is a neurofeedback and brain-computer interface (BCI) toolbox for real-time functional near-infrared spectroscopy (fNIRS). It incorporates multiple pipelines from real-time preprocessing and analysis to neurofeedback and BCI applications. The toolbox is designed with a focus in usability, enabling a fast setup and execution of real-time experiments. Turbo-Satori uses an incremental recursive least-squares procedure for real-time general linear model calculation and support vector machine classifiers for advanced BCI applications. It communicates directly with common NIRx fNIRS hardware and was tested extensively ensuring that the calculations can be performed in real time without a significant change in calculation times for all sampling intervals during ongoing experiments of up to 6 h of recording. Enabling immediate access to advanced processing features also allows the use of this toolbox for students and nonexperts in the field of fNIRS data acquisition and processing. Flexible network interfaces allow third party stimulus applications to access the processed data and calculated statistics in real time so that this information can be easily incorporated in neurofeedback or BCI presentations. PMID- 29021988 TI - Special Section Guest Editorial: Visions of Safety: Perspectives on Radiation Exposure and Risk in Medical Imaging. AB - This guest editorial introduces the special section on Visions of Safety: Perspectives on Radiation Exposure and Risk in Medical Imaging. PMID- 29021987 TI - Spatial variation in the hemoglobin phase of oxygenation and deoxygenation in the developing cortex of infants. AB - Spontaneous low-frequency oscillatory changes in oxygenated hemoglobin (oxy-Hb) and deoxygenated hemoglobin (deoxy-Hb) are observed using functional near infrared spectroscopy (fNIRS). A previous study showed that the time-averaged phase difference between oxy-Hb and deoxy-Hb changes, referred to as hemoglobin phase of oxygenation and deoxygenation (hPod), is sensitive to the development of the cortex. We examined phase-locking index of hPod, referred to as [Formula: see text], in addition to hPod, in neonates and 3- and 6-month-old infants using the 94-channel fNIRS data, which covered large lateral regions of the cortex. The results showed that (1) developmental changes in hPod exhibited spatial dependency; (2) [Formula: see text] increased between the neonate group and 3 month-old infant group over the posterior, but not anterior, regions of the cortex; and (3) the cortical regions of each age group were clustered in several domains with specific characteristics of hPod and [Formula: see text]. This study indicates that the neonatal cortex is composed of regions with specific characteristics of hPod and [Formula: see text], and drastic changes occur between the neonatal period and 3 months of age. This study suggests that hPod and [Formula: see text] are sensitive to the cortical region-specific development of the circulatory, blood flow, metabolic, and neurovascular functions in young infants. PMID- 29021986 TI - Integrated treatment modality of cathodal-transcranial direct current stimulation with peripheral sensory stimulation affords neuroprotection in a rat stroke model. AB - Cathodal-transcranial direct current stimulation induces therapeutic effects in animal ischemia models by preventing the expansion of ischemic injury during the hyperacute phase of ischemia. However, its efficacy is limited by an accompanying decrease in cerebral blood flow. On the other hand, peripheral sensory stimulation can increase blood flow to specific brain areas resulting in rescue of neurovascular functions from ischemic damage. Therefore, the two modalities appear to complement each other to form an integrated treatment modality. Our results showed that hemodynamics was improved in a photothrombotic ischemia model, as cerebral blood volume and hemoglobin oxygen saturation ([Formula: see text]) recovered to 71% and 76% of the baseline values, respectively. Furthermore, neural activities, including somatosensory-evoked potentials (110% increase), the alpha-to-delta ratio (27% increase), and the [Formula: see text] ratio (27% decrease), were also restored. Infarct volume was reduced by 50% with a 2-fold preservation in the number of neurons and a 6-fold reduction in the number of active microglia in the infarct region compared with the untreated group. Grip strength was also better preserved (28% higher) compared with the untreated group. Overall, this nonpharmacological, nonintrusive approach could be prospectively developed into a clinical treatment modality. PMID- 29021989 TI - Patient dose monitoring and the use of diagnostic reference levels for the optimization of protection in medical imaging: current status and challenges worldwide. AB - Optimization is one of the key concepts of radiation protection in medical imaging. In practice, it involves compromising between the image quality and dose to the patient; the dose should not be higher than necessary to achieve an image quality (or diagnostic information) needed for the clinical task. Monitoring patient dose is a key requirement toward optimization. The concept of diagnostic reference level (DRL) was introduced by the International Commission on Radiological Protection as a practical tool for optimization. Unfortunately, this concept has not been applied consistently worldwide. To review the current strengths and weaknesses worldwide and to promote improvements, the International Atomic Energy Agency organized a Technical Meeting on patient dose monitoring and the use of DRLs on May 2016. This paper reports a summary of the findings and conclusions from the meeting. The strengths and weaknesses were generally different in less-developed countries compared with developed countries. Possible improvements were suggested in six areas: human resources and responsibilities, training, safety and quality culture, regulations, funding, and tools and methods. An overall conclusion was that radiation protection requires a patient centric approach and a transfer from purely reactive to increasingly proactive optimization, whereby the best outcome is expected from good teamwork. PMID- 29021990 TI - Discovery radiomics via evolutionary deep radiomic sequencer discovery for pathologically proven lung cancer detection. AB - While lung cancer is the second most diagnosed form of cancer in men and women, a sufficiently early diagnosis can be pivotal in patient survival rates. Imaging based, or radiomics-driven, detection methods have been developed to aid diagnosticians, but largely rely on hand-crafted features that may not fully encapsulate the differences between cancerous and healthy tissue. Recently, the concept of discovery radiomics was introduced, where custom abstract features are discovered from readily available imaging data. We propose an evolutionary deep radiomic sequencer discovery approach based on evolutionary deep intelligence. Motivated by patient privacy concerns and the idea of operational artificial intelligence, the evolutionary deep radiomic sequencer discovery approach organically evolves increasingly more efficient deep radiomic sequencers that produce significantly more compact yet similarly descriptive radiomic sequences over multiple generations. As a result, this framework improves operational efficiency and enables diagnosis to be run locally at the radiologist's computer while maintaining detection accuracy. We evaluated the evolved deep radiomic sequencer (EDRS) discovered via the proposed evolutionary deep radiomic sequencer discovery framework against state-of-the-art radiomics-driven and discovery radiomics methods using clinical lung CT data with pathologically proven diagnostic data from the LIDC-IDRI dataset. The EDRS shows improved sensitivity (93.42%), specificity (82.39%), and diagnostic accuracy (88.78%) relative to previous radiomics approaches. PMID- 29021991 TI - Segmentation of multicolor fluorescence in situ hybridization images using an improved fuzzy C-means clustering algorithm by incorporating both spatial and spectral information. AB - Multicolor fluorescence in situ hybridization (M-FISH) is a multichannel imaging technique for rapid detection of chromosomal abnormalities. It is a critical and challenging step to segment chromosomes from M-FISH images toward better chromosome classification. Recently, several fuzzy C-means (FCM) clustering-based methods have been proposed for M-FISH image segmentation or classification, e.g., adaptive fuzzy C-means (AFCM) and improved AFCM (IAFCM), but most of these methods used only one channel imaging information with limited accuracy. To improve the segmentation for better accuracy and more robustness, we proposed an FCM clustering-based method, denoted by spatial- and spectral-FCM. Our method has the following advantages: (1) it is able to exploit information from neighboring pixels (spatial information) to reduce the noise and (2) it can incorporate pixel information across different channels simultaneously (spectral information) into the model. We evaluated the performance of our method by comparing with other FCM based methods in terms of both accuracy and false-positive detection rate on synthetic, hybrid, and real images. The comparisons on 36 M-FISH images have shown that our proposed method results in higher segmentation accuracy ([Formula: see text]) and a lower false-positive ratio ([Formula: see text]) than conventional FCM (accuracy: [Formula: see text], and false-positive ratio: [Formula: see text]) and the IAFCM (accuracy: [Formula: see text] and false positive ratio: [Formula: see text]) methods by incorporating both spatial and spectral information from M-FISH images. PMID- 29021992 TI - Classifying symmetrical differences and temporal change for the detection of malignant masses in mammography using deep neural networks. AB - We investigate the addition of symmetry and temporal context information to a deep convolutional neural network (CNN) with the purpose of detecting malignant soft tissue lesions in mammography. We employ a simple linear mapping that takes the location of a mass candidate and maps it to either the contralateral or prior mammogram, and regions of interest (ROIs) are extracted around each location. Two different architectures are subsequently explored: (1) a fusion model employing two datastreams where both ROIs are fed to the network during training and testing and (2) a stagewise approach where a single ROI CNN is trained on the primary image and subsequently used as a feature extractor for both primary and contralateral or prior ROIs. A "shallow" gradient boosted tree classifier is then trained on the concatenation of these features and used to classify the joint representation. The baseline yielded an AUC of 0.87 with confidence interval [0.853, 0.893]. For the analysis of symmetrical differences, the first architecture where both primary and contralateral patches are presented during training obtained an AUC of 0.895 with confidence interval [0.877, 0.913], and the second architecture where a new classifier is retrained on the concatenation an AUC of 0.88 with confidence interval [0.859, 0.9]. We found a significant difference between the first architecture and the baseline at high specificity with [Formula: see text]. When using the same architectures to analyze temporal change, we yielded an AUC of 0.884 with confidence interval [0.865, 0.902] for the first architecture and an AUC of 0.879 with confidence interval [0.858, 0.898] in the second setting. Although improvements for temporal analysis were consistent, they were not found to be significant. The results show our proposed method is promising and we suspect performance can greatly be improved when more temporal data become available. PMID- 29021994 TI - Stereotaxic Adeno-associated Virus Injection and Cannula Implantation in the Dorsal Raphe Nucleus of Mice. AB - Optogenetic methods are now widespread in neuroscience research. Here we present a detailed surgical procedure to inject adeno-associated viruses and implant optic fiber cannulas in the dorsal raphe nucleus (DRN) of living mice. Combined with transgenic mouse lines, this protocol allows specific targeting of serotonin producing neurons in the brain. It includes fixing a mouse in a stereotaxic frame, performing a craniotomy, virus injection and fiber implantation. Animals can be later used in behavioral experiments, combined with optogenetic manipulations (Dugue et al., 2014; Correia et al., 2017) or monitoring of neuronal activity (Matias et al., 2017). The described procedure is a fundamental step in both optogenetic and fiber photometry experiments of deep brain areas. It is optimized for serotonin neurons in the DRN, but it can be applied to any other cell type and brain region. When using transgenic mouse lines that express functionally relevant levels of optogenetic tools or reporter lines, the virus injection step can be skipped and the protocol is reduced to the cannula implantation procedure. PMID- 29021993 TI - Multisite concordance of apparent diffusion coefficient measurements across the NCI Quantitative Imaging Network. AB - Diffusion weighted MRI has become ubiquitous in many areas of medicine, including cancer diagnosis and treatment response monitoring. Reproducibility of diffusion metrics is essential for their acceptance as quantitative biomarkers in these areas. We examined the variability in the apparent diffusion coefficient (ADC) obtained from both postprocessing software implementations utilized by the NCI Quantitative Imaging Network and online scan time-generated ADC maps. Phantom and in vivo breast studies were evaluated for two ([Formula: see text]) and four ([Formula: see text]) [Formula: see text]-value diffusion metrics. Concordance of the majority of implementations was excellent for both phantom ADC measures and in vivo [Formula: see text], with relative biases [Formula: see text] ([Formula: see text]) and [Formula: see text] (phantom [Formula: see text]) but with higher deviations in ADC at the lowest phantom ADC values. In vivo [Formula: see text] concordance was good, with typical biases of [Formula: see text] to 3% but higher for online maps. Multiple b-value ADC implementations were separated into two groups determined by the fitting algorithm. Intergroup mean ADC differences ranged from negligible for phantom data to 2.8% for [Formula: see text] in vivo data. Some higher deviations were found for individual implementations and online parametric maps. Despite generally good concordance, implementation biases in ADC measures are sometimes significant and may be large enough to be of concern in multisite studies. PMID- 29021996 TI - Characterisation of mineral deposition systems associated with rock art in the Kimberley region of northwest Australia. AB - This data article contains mineralogical and chemical data from mineral accretions sampled from rock art shelters in the Kimberley region of north west Australia. The accretions were collected both on and off pigment and engraved rock art of varying styles observed in the Kimberley with an aim of providing a thorough understanding of the formation and preservation of such materials in the context of dating [1]. This contribution includes processed powder X-ray Diffraction data, Scanning Electron Microscopy energy dispersive spectroscopy data, and Laser Ablation ICP-MS trace element mapping data. PMID- 29021995 TI - Tumor-induced osteomalacia. AB - Tumor-induced osteomalacia (TIO) is a rare paraneoplastic syndrome clinically characterized by bone pain, fractures and muscle weakness. It is caused by tumoral overproduction of fibroblast growth factor 23 (FGF23) that acts primarily at the proximal renal tubule, decreasing phosphate reabsorption and 1alpha hydroxylation of 25 hydroxyvitamin D, thus producing hypophosphatemia and osteomalacia. Lesions are typically small, benign mesenchymal tumors that may be found in bone or soft tissue, anywhere in the body. In up to 60% of these tumors, a fibronectin-1(FN1) and fibroblast growth factor receptor-1 (FGFR1) fusion gene has been identified that may serve as a tumoral driver. The diagnosis is established by the finding of acquired chronic hypophosphatemia due to isolated renal phosphate wasting with concomitant elevated or inappropriately normal blood levels of FGF23 and decreased or inappropriately normal 1,25-OH2-Vitamin D (1,25(OH)2D). Locating the tumor is critical, as complete removal is curative. For this purpose, a step-wise approach is recommended, starting with a thorough medical history and physical examination, followed by functional imaging. Suspicious lesions should be confirmed by anatomical imaging, and if needed, selective venous sampling with measurement of FGF23. If the tumor is not localized, or surgical resection is not possible, medical therapy with phosphate and active vitamin D is usually successful in healing the osteomalacia and reducing symptoms. However, compliance is often poor due to the frequent dosing regimen and side effects. Furthermore, careful monitoring is needed to avoid complications such us secondary/tertiary hyperparathyroidism, hypercalciuria, and nephrocalcinosis. Novel therapeutical approaches are being developed for TIO patients, such as image-guided tumor ablation and medical treatment with the anti FGF23 monoclonal antibody KRN23 or anti FGFR medications. The case of a patient with TIO is presented to illustrate the importance of adequate and appropriate evaluation of patients with bone pain and hypophosphatemia, as well as an step wise localization study of patients with suspected TIO. PMID- 29021997 TI - Dataset on the synthesis and characterization of boron fenbufen and its F-18 labeled homolog. AB - The data presented in this article are related to the research article entitled "Synthesis and Characterization of Boron Fenbufen and its F-18 Labeled Homolog for Boron Neutron Capture Therapy of COX-2 Overexpressed Cholangiocarcinoma". The contents of the data article include 1) the set up for performing in vitro binding assay, 2) 1H-, 13C- and 19F-NMR of compounds described in main text, 3) HPLC chromatogram of the fluorination mixtures, 4) data of in vitro stability test, cell survival assay, western blot and PCR analysis, 5) the modules for fixing the two CCA rats for BNCT, and 6) bar diagram for tumor reduction using [18F]FDG-PET 24 h post treatment with BNCT. PMID- 29021998 TI - Dataset for the proteomic and transcriptomic analyses of perivitelline fluid proteins in Pomacea snail eggs. AB - This article describes how the proteomic and transcriptomic data were produced during a study of the reproductive proteins of Pomacea maculata, an aquatic apple snail laying colorful aerial eggs, and provides public access to the data. The data are related to a research article titled 'An integrated proteomic and transcriptomic analysis of perivitelline fluid proteins in a freshwater gastropod laying aerial eggs' (Mu et al., 2017) [1]. RNA was extracted from the albumen gland and other tissues and sequenced on an Illumina Hiseq. 2000. The assembled transcriptome was translated into protein sequences and then used for protein identification. Proteins from the perivitelline fluid of P. maculata were separated in SDS-PAGE and analyzed by LTQ-Orbitrap Elite coupled to an Easy-nLC. The translated transcriptome data are provided in this article. Proteomic data (.raw file format) are available via ProteomeXchange with the identifier PXD006718. PMID- 29021999 TI - Human performance data collected in a virtual environment. AB - This data article describes the experimental data used in the research article "Incorporating individual differences in human reliability analysis: an extension to the virtual experimental technique" (Musharraf et al., 2017) [1]. The article provides human performance data for 36 individuals collected using a virtual environment. Each participant was assigned to one of two groups for training: 1) G1: high level training and 2) G2: low level training. Participants' performance was tested in 4 different virtual scenarios with different levels of visibility and complexity. Several performance metrics of the participants were recorded during each scenario. The metrics include: time to muster, time spent running, interaction with fire doors and watertight doors, interaction with hazards, and reporting at different muster locations. PMID- 29022000 TI - Data on efficacy of umbelliferone on glycoconjugates and immunological marker in 7,12-dimethylbenz(a)anthracene induced oral carcinogenesis. AB - Umbelliferone, a phenolic coumarin and dietary agent is believed to play a key role in pharmacological activities including anti-cancer and anti-oxidants effect in various in vitro and in vivo models. In present data on the pre-treatment of umbelliferone (30 mg/kg b.w.) for 16 weeks to 7,12-dimethylbenz(a)anthracene induced hamsters provides protection on cellular integrity by observing the status of cell surface glycoconjugates in the circulation and buccal mucosa and cytokeratin immunoexpression in the buccal mucosa of experimental animals. Data presented in this article brief that umbelliferone exhibits potent to clear cell surface abnormalities in buccal tissues and circulation during carcinogenesis and restored the expression of cytokeratin effect against 7,12 dimethylbenz(a)anthracene induced hamster buccal pouch carcinogenesis, which is attributes to its inhibitory role on glycoprotein synthesis or on the activity of the glycosyltransferase. In an article associates with this data set given the relevance to the research article entitled "Dose responsive efficacy of umbelliferone on lipid peroxidation, anti-oxidant, and xenobiotic metabolism in 7,12-dimethylbenz(a)anthracene-induced oral carcinogenesis" namely Vijayalakshmi and Sindhu, 2017 assessed 100% tumour formation in 7,12-dimethylbenz(a)anthracene treated hamsters and oral administration of umbelliferone at a dose of 30 mg/kg b.w to 7,12-dimethylbenz(a)anthracene treated hamsters prevents tumour incidence, restores the status of the biochemical markers in circulation and buccal mucosa and also dysregulation in the expression of molecular markers. Given the relevance to this article entitled "Berberine protects cellular integrity during 7,12-dimethylbenz[a]anthracene-induced oral carcinogenesis in golden Syrian hamsters" namely Sindhu and Manoharan 2010, which were based on spectrophotometry and florescence microscope analysis. PMID- 29022001 TI - Data supporting the functional role of Eleven-nineteen Lysine-rich Leukemia 3 (ELL3) in B cell lymphoma cell line cells. AB - The data presented here are related to the research article entitled "Selective expression of the transcription elongation factor ELL3 in B cells prior to ELL2 drives proliferation and survival" (Alexander et al., 2017) [1]. The cited research article characterizes Eleven-nineteen Lysine-rich Leukemia 3 (ELL3) expression in the B cell compartment and functional dependence in B lymphoma cell lines. This data report describes the mRNA expression pattern in a panel of cell lines representing the B cell compartment, supplementing the protein expression data presented in the associated research report. In addition, a reanalysis is presented of publicly available mRNA expression data from primary murine B cells to reveal dynamic regulation of the ELL family members post LPS stimulation (Barwick et al., 2016) [2]. The effect of ELL3 depletion on cell morphology, latent Epstein Barr Virus (EBV) lytic replication and differentiation markers in a Burkitt's lymphoma (BL) cell line cells are presented. PMID- 29022002 TI - Data on microcirculatory parameters of GTS- 21 treated rats assessed by intravital microscopy. AB - This article contains animal experimental data associated with the research article entitled "GTS-21 reduces microvascular permeability during experimental endotoxemia" (Schmidt et al., 2017) [1] (supplementary datasets of baseline intravital microscopic measurements, baseline TNF-alpha levels and vital parameters of the evaluated experimental groups are provided). Beneficial anti inflammatory effects of cholinergic mediators on microvascular inflammation have been demonstrated by intravital microscopic investigations (Schmidt et al., 2015) [2], therefore we evaluated the effect of the cholinergic mediator GTS-21 on microcirculatory alterations during endotoxemia [1]. The data regarding microcirculatory effects of GTS-21 treatment ((3-(2,4-Dimethoxybenzylidene) anabaseine dihydrochloride; 1 mg/kg; i.v.) in non-endotoxemic animals are presented in this article. PMID- 29022003 TI - Data on the effect of knockout of cytohesin-1 in myelination-related protein kinase signaling. AB - Cytohesin-1 is the guanine-nucleotide exchange factor of Arf6, a small GTPase of Arf family, and participates in cellular morphological changes. Knockout mice of cytohesin-1 exhibit decreased myelination of neuronal axons in the peripheral nervous system (PNS) "Phosphorylation of cytohesin-1 by Fyn is required for initiation of myelination and the extent of myelination during development (Yamauchi et al., 2012) [1]". Herein we provide the data regarding decreased phosphorylation levels of protein kinases involved in two major myelination related kinase cascades in cytohesin-1 knockout mice. PMID- 29022004 TI - Data related to dislocation density-based constitutive modeling of the tensile behavior of lath martensitic press hardening steel. AB - The data presented in this article are related to the research article entitled "On the plasticity mechanisms of lath martensitic steel" (Jo et al., 2017) [1]. The strain hardening behavior during tensile deformation of a lath martensitic press hardening steel was described using a dislocation density-based constitutive model. The Kubin-Estrin model was used to describe strain hardening of the material from the evolution of coupled dislocation densities of mobile and immobile forest dislocation. The data presented provide insight into the complex deformation behavior of lath martensitic steel. PMID- 29022006 TI - Metastatic squamous cell carcinoma in a patient treated with adalimumab for hidradenitis suppurativa. PMID- 29022005 TI - Systemic and Terminal Ileum Mucosal Immunity Elicited by Oral Immunization With the Ty21a Typhoid Vaccine in Humans. AB - BACKGROUND & AIMS: Systemic cellular immunity elicited by the Ty21a oral typhoid vaccine has been extensively characterized. However, very limited data are available in humans regarding mucosal immunity at the site of infection (terminal ileum [TI]). Here we investigated the host immunity elicited by Ty21a immunization on terminal ileum-lamina propria mononuclear cells (LPMC) and peripheral blood in volunteers undergoing routine colonoscopy. METHODS: We characterized LPMC-T memory (TM) subsets and assessed Salmonella enterica serovar Typhi (S Typhi)-specific responses by multichromatic flow cytometry. RESULTS: No differences were observed in cell yields and phenotypes in LPMC CD8+-TM subsets following Ty21a immunization. However, Ty21a immunization elicited LPMC CD8+ T cells exhibiting significant S Typhi-specific responses (interferon-gamma, tumor necrosis factor-alpha, interleukin-17A, and/or CD107a) in all major TM subsets (T effector/memory [TEM], T-central/memory, and TEM-CD45RA+), although each TM subset exhibited unique characteristics. We also investigated whether Ty21a immunization elicited S Typhi-specific multifunctional effectors in LPMC CD8+ TEM. We observed that LPMC CD8+ TEM responses were mostly multifunctional, except for those cells exhibiting the characteristics associated with cytotoxic responses. Finally, we compared mucosal with systemic responses and made the important observation that LPMC CD8+S Typhi-specific responses were unique and distinct from their systemic counterparts. CONCLUSIONS: This study provides the first demonstration of S Typhi-specific responses in the human terminal ileum mucosa and provides novel insights into the generation of mucosal immune responses following oral Ty21a immunization. PMID- 29022007 TI - Is uterine preservation combined with bilateral salpingo-oophorectomy to promote subsequent fertility safe in infiltrative mucinous ovarian cancer? AB - According to the latest World Health Organization classification (2014), mucinous ovarian cancers should be classified histologically as being either expansile or infiltrative. Compared to other epithelial cancers, both of these mucinous patterns are diagnosed, in the main, at an early stage, although they can affect relatively young patients. The infiltrative subtype is characterized by a morphologically and clinically more aggressive disease versus the expansile form. Consequently, even in young patients who would prefer fertility sparing management, the removal of both ovaries (even for a unilateral tumor) remains a common recommendation. However case reports describing the preservation of the uterus for a further potential pregnancy (following oocyte donation) have now been described. In this series, we present six patients treated for stage I mucinous infiltrative cancer using bilateral salpingo-oophorectomy with uterine preservation. All but one patient underwent 1-step (n = 1) or 2-step (n = 4) surgery, including peritoneal and nodal (4 patients) procedures. Disease stages were IA (n = 2), IC1 (n = 1), IC2 (n = 2), or IC3 (n = 1). While two patients subsequently became pregnant, two patients also suffered disease recurrence. For one patient, recurrence was at the pelvic peritoneum. For the second patient, an ultimately lethal disease recurrence involved the uterine serosa with nodal involvement. The results of this short series lead us to question the safety of this uterine-preserving strategy. PMID- 29022009 TI - Differential pulse voltammetric determination of salbutamol sulfate in syrup pharmaceutical formulation using poly(4-amino-3-hydroxynaphthalene sulfonic acid) modified glassy carbon electrode. AB - A new method for determination of salbutamol sulfate has been developed using poly(4-amino-3-hydroxynaphthalene sulfonic acid/GCE. Cyclic voltammetric investigation of the electrochemical behavior of salbutamol sulfate at the polymer modified glassy carbon unveiled electrocatalytic activity of the modifier towards irreversible oxidation of salbutamol sulfate. Dependence of peak current predominantly on scan rate than on square root of scan rate, and peak potential shift with pH demonstrated that oxidation of salbutamol sulfate at the polymer modified electrode follows adsorption reaction kinetics with proton participation. Under optimized solution and differential pulse voltammetric parameters, the oxidative peak current showed linear dependence on salbutamol sulfate concentration in the range 0.2 to 8 MUM with method detection limit (3s/m) and determination coefficient (R2) of 6.8 * 10-8 M and 0.99786, respectively. Low method detection limit, relatively wide linear range, and recovery results of spiked standard salbutamol sulfate in syrup samples in the range 96.7-98.9% validated the method for determination of salbutamol sulfate in pharmaceutical formulations. Differential pulse voltammetric analysis of salbutamol sulfate syrup formulation for its salbutamol sulfate content revealed 98.8 to 99.3% of the labeled value confirming the applicability of the developed method for determination of salbutamol sulfate in real samples. PMID- 29022008 TI - Inflammatory activation of human cardiac fibroblasts leads to altered calcium signaling, decreased connexin 43 expression and increased glutamate secretion. AB - Cardiac fibroblasts, which are abundant in heart tissue, are involved not only in extracellular matrix homeostasis and repair, but also in cardiac remodeling after a myocardial infarction that, in turn, can lead to loss of cardiac function and heart failure. Ca2+ signaling is functionally important in many cell types, but the roles of fibroblast signaling and inflammation in the pathogenesis of heart disease are unclear. Here, we tested the hypothesis that inflammatory activation affects cardiac fibroblasts, both in terms of Ca2+ signaling and their capacity for intercellular communication through the gap junction channel protein connexin 43 (Cx43). We examined Ca2+ responses induced by known modulators of cardiac function such as glutamate, ATP and 5-hydroxytryptamine (5-HT) in human cardiac fibroblasts, under normal and inflammatory conditions. We showed that activation of human cardiac fibroblasts by lipopolysaccharide (LPS) for 24 h altered Ca2+ signaling, increased TLR4 and decreased Cx43 expression. In the fibroblasts, LPS treatment increased glutamate-evoked and decreased 5-HT-evoked Ca2+ signals. LPS activation also induced increased secretion of glutamate and proinflammatory cytokines from these cells. In summary, we propose that inflammatory stimuli can affect intracellular Ca2+ release, Cx43 expression, glutamate release and cytokine secretion in human cardiac fibroblasts. Inflammatory conditions may, therefore, impair intercellular network communication between fibroblasts and cardiomyocytes potentially contributing to cardiac dysfunction. PMID- 29022010 TI - The effect of cold acclimation on the low molecular weight carbohydrate composition of safflower. AB - Understanding cold acclimation and identifying the low molecular weight carbohydrates that support the development of freezing tolerant safflower seedlings will aid in breeding winter-hardy cultivars for temperate cropping systems. Three field selected lines of winter safflower (WSRC01: PI 651878; WSRC02: PI 651879; WSRC03: PI 651880) were cold acclimated for four weeks at 4 degrees C and compared to seedlings grown for two weeks at 20 degrees C. The commercial spring-type cultivar, Ole, served as a non-hardy check. Leaf, stem, and root fructose, glucose, sucrose, raffinose, and stachyose concentrations all increased to variable extents across the PI accessions after cold acclimation. In comparison with Ole, winter safflower accessions tended to be more responsive to cold acclimation by increasing metabolite concentration. Verbascose was only recovered within leaf tissue and PI 651880 was the only entry to show a substantial alteration in verbascose concentration due to cold acclimation. Based on these data, no specific low molecular carbohydrate was responsive or responsible for the accumulation of freezing tolerance, but a concert of metabolites and their responsiveness may help explain the observed differences in development, freezing tolerance, and ultimately winterhardiness among safflower germplasm. PMID- 29022012 TI - Vanadate oxidative and apoptotic effects are mediated by the MAPK-Nrf2 pathway in layer oviduct magnum epithelial cells. AB - Vanadium is a metal of high physiological, environmental and industrial importance. However, vanadium-induced oxidative stress can reduce the egg quality of poultry, and be potentially harmful to humans, and the underlying mechanism is not clear. In this study, we investigated the underlying relationship between the oxidant-sensitive mitogen-activated protein kinase (MAPK) signaling pathway and vanadium-induced oxidative stress in oviduct magnum epithelial (OME) cells. Cultured OME cells were treated with 100 MUmol L-1 vanadium and/or MAPK inhibitors [P38 MAPK inhibitor, SB203580; extracellular regulated protein kinase 1 and 2 (ERK1/2) inhibitor, U0126; c-JUN N-terminal kinases (JNK) inhibitor, SP600125]. Cell viability, apoptosis, and generation of reactive oxygen species (ROS) were assessed using flow cytometry. The expression of oxidative stress related genes and their proteins was measured by reverse transcription-polymerase chain reaction and western blotting. Vanadium treatment reduced cell viability, whereas pretreated OME cells with SB203580 and U0126 prevented the reducing effect of vanadium on cell viability (P < 0.05). Likewise, MAPK inhibitors effectively suppressed vanadium-induced apoptosis and ROS generation (P < 0.05). In the OME cells treated with vanadium, SB203580 (P < 0.05) and SP600125 (P = 0.08) increased catalase activity by 89.3% and 55.3%; SB203580 and U0126 increased (P < 0.05) glutathione peroxidase activity by 44.9% and 51.1%, respectively. Incubation of OME cells with MAPK inhibitors also prevents malondialdehyde concentration increase and lactic dehydrogenase activity decrease in response to vanadium (P < 0.05). Vanadium downregulated P38, ERK1/2, JNK, Nrf2, sMaf, GCLC, NQO1 and HO-1 mRNA expression (P < 0.05). In contrast, inhibition of JNK with SP600125 upregulated P38, ERK1/2, JNK, Nrf2, GCLC and HO-1 mRNA expression (P < 0.05); inhibition of P38 with SB203580 upregulated JNK, NQO1 and HO-1 mRNA expression (P < 0.05); and inhibition of ERK1/2 with U0126 upregulated ERK1/2, GCLC and HO-1 mRNA expression (P < 0.05). Moreover, phosphorylation of P38, ERK1/2, JNK, and Nrf2 proteins was enhanced by V incubation; however, SP600125 blocked the phosphorylation of these proteins, whereas SB203580 blocked the phosphorylation of P38 and Nrf2. These results indicate that vanadium inducing oxidative stress in OME cells might be, at least, associated with the phosphorylation of the P38MAPK/JNK-Nrf2 pathway, which reduces the expression of phase II detoxifying enzymes. PMID- 29022011 TI - Placental extract ameliorates non-alcoholic steatohepatitis (NASH) by exerting protective effects on endothelial cells. AB - Non-alcoholic steatohepatitis (NASH) is a severe form of fatty liver disease that is defined by the presence of inflammation and fibrosis, ultimately leading to cirrhosis and hepatocellular carcinoma. Treatment with human placental extract (HPE) reportedly ameliorates the hepatic injury. We evaluated the effect of HPE treatment in a mouse model of NASH. In the methione- and choline-deficient (MCD) diet-induced liver injury model, fibrosis started from regions adjacent to the sinusoids. We administered the MCD diet with high-salt loading (8% NaCl in the drinking water) to mice deficient in the vasoprotective molecule RAMP2 for 5 weeks, with or without HPE. In both the HPE and control groups, fibrosis was seen in regions adjacent to the sinusoids, but the fibrosis was less pronounced in the HPE-treated mice. Levels of TNF-alpha and MMP9 expression were also significantly reduced in HPE-treated mice, and oxidative stress was suppressed in the perivascular region. In addition, HPE dose-dependently increased survival of cultured endothelial cells exposed to 100 MUM H2O2, and it upregulated expression of eNOS and the anti-apoptotic factors bcl-2 and bcl-xL. From these observations, we conclude that HPE ameliorates NASH-associated pathologies by suppressing inflammation, oxidative stress and fibrosis. These beneficially effects of HPE are in part attributable to its protective effects on liver sinusoidal endothelial cells. HPE could thus be an attractive therapeutic candidate with which to suppress progression from simple fatty liver to NASH. PMID- 29022014 TI - Quantifying the dispersion quality of partially aggregated colloidal dispersions by high frequency rheology. AB - An important parameter for the performance of nanomaterials is the degree by which the nanoparticles are dispersed in a matrix. Optical microscopy or scattering methods are useful to characterise the state of dispersion, but are not generally applicable to all materials. Electron microscopy methods are laborious in preparation and typically offer only quantitative information on a very local scale. In the present work we investigate how high frequency rheological measurements can be used for partially dispersed suspensions at intermediate to higher particle loadings, even for high viscous matrices. Although the contribution of the particles is particularly visible in the low frequency linear viscoelastic behaviour, a more direct relationship between rheological properties and degree of dispersion can be derived from the loss modulus in the high frequency limit. To this end, a home-built piezo shear rheometer is constructed to extend the frequency range typically accessible by commercial rotational rheometers. Measurements on spherical silica particles, with a varying degree of dispersion in low molecular weight PDMS, are used to demonstrate how high frequency rheometry can be used to quantify dispersion quality. The linear viscoelastic properties are compared to analytical scaling theories to demonstrate that a hydrodynamically dominated regime is reached. The dependence of the relative high frequency loss modulus on volume fraction is then compared to predictions of a hydrodynamic viscosity model for the derivation of a dispersion quality index. It is used to follow the evolution of the dispersion quality as a function of mixing time and consumed power. PMID- 29022013 TI - Luminescence, energy transfer and optical thermometry of a novel narrow red emitting phosphor: Cs2WO2F4:Mn4. AB - A novel red emitting Cs2WO2F4:Mn4+ phosphor was successfully synthesized by a two step wet chemical method. The crystal structure, morphology, and elemental composition were confirmed by powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDS), respectively. The luminescence properties were investigated from emission, excitation and luminescence decay curves in the temperature region of 10-500 K. The application of non-contact optical thermometry of Cs2WO2F4:Mn4+ based on the fluorescence intensity ratio (FIR) of the two coupled anti-Stokes and Stokes sidebands is discussed. The as-prepared Cs2WO2F4:Mn4+ phosphor shows a bright narrow red emission at 632 nm under excitation by a blue lamp at 470 nm and it also presents a broad and yellow-white intrinsic tungstate emission (~520 nm) under UV excitation. The mechanism of energy transfer from [WO2F4]2- (the sensitizer) to Mn4+ (the activator) is discussed. PMID- 29022015 TI - Silylation of O-H bonds by catalytic dehydrogenative and decarboxylative coupling of alcohols with silyl formates. AB - The silylation of O-H bonds is a useful methodology in organic synthesis and materials science. While this transformation is commonly achieved by reacting alcohols with reactive chlorosilanes or hydrosilanes, we show herein for the first time that silylformates HCO2SiR3 are efficient silylating agents for alcohols, in the presence of a ruthenium molecular catalyst. PMID- 29022016 TI - Structuralization of magnetic nanoparticles in 5CB liquid crystals. AB - This work is devoted to the study of highly stable composite systems of the liquid crystal 4-n-pentyl-4'-cyanobiphenyl (5CB) doped with CoFe2O4 magnetic nanoparticles. Ferronematic samples were prepared with two different weight concentrations: sample A 0.085 wt% and sample B 0.062 wt%. The interaction of CoFe2O4 nanoparticles with the liquid crystal was investigated by small-angle X ray-scattering and magnetization measurements. The obtained results reveal aggregates formed by magnetic nanoparticles that are oriented in the nematic phase. Moreover, the prepared samples show unexpected behaviour of a sudden change in magnetization, which is unusual for such ferronematics. PMID- 29022017 TI - Structure-property relationships in protic ionic liquids: a study of solvent solvent and solvent-solute interactions. AB - The ionic nature of a functionalized protic ionic liquid cannot be rationalized simply through the differences in aqueous proton dissociation constants between the acid precursor and the conjugate acid of the base precursor. The extent of proton transfer, i.e. the equilibrium ionicity, of a tertiary ammonium acetate protic ionic liquid can be significantly increased by introducing an hydroxyl functional group on the cation, compared to the alkyl or amino-functionalized analogues. This increase in apparent ionic nature correlates well with variations in solvent-solute and solvent-solvent interaction parameters, as well as with physicochemical properties such as viscosity. PMID- 29022018 TI - Versatile design and synthesis of nano-barcodes. AB - Encoded nano-structures/particles have been used for barcoding and are in great demand for the simultaneous analysis of multiple targets. Due to their nanoscale dimension(s), nano-barcodes have been implemented favourably for bioimaging, in addition to their security and multiplex bioassay application. In designing nano barcodes for a specific application, encoding techniques, synthesis strategies, and decoding techniques need to be considered. The encoding techniques to generate unique multiple codes for nano-barcodes are based on certain encoding elements including optical (fluorescent and non-fluorescent), graphical, magnetic, and phase change properties of nanoparticles or their different shapes and sizes. These encoding elements can generally be embedded inside, decorated on the surface of nanostructures or self-assembled to prepare the nano-barcodes. The decoding techniques for each encoding technique are different and need to be suitable for the desired applications. This review will provide a thorough discussion on designing nano-barcodes, focusing on the encoding techniques, synthesis methods, and decoding for applications including bio-detection, imaging, and anti-counterfeiting. Additionally, associated challenges in the field and potential solutions will also be discussed. We believe that a comprehensive understanding on this topic could significantly contribute towards the advancement of nano-barcodes for a broad spectrum of applications. PMID- 29022019 TI - Experimental verification of simultaneous desalting and molecular preconcentration by ion concentration polarization. AB - While the ion concentration polarization (ICP) phenomenon has been intensively researched for the last decade, a complete picture of ion and analyte distributions near nanoporous membranes is strongly desired, not only for fundamental nano-electrokinetic studies but also for the development of lab-on-a chip applications. Since direct concentration measurements, using either time consuming collection or microelectrodes, are limited due to low throughput (= 60 mL/min/1.73 m2 were eligible for inclusion if they were initiated and maintained on a steady daily dose of canagliflozin 300 mg or sitagliptin 100 mg between 1 May and 31 December 2014, and followed up for 24 weeks. RESULTS: In total, 57 patients (canagliflozin 300 mg, n = 22; sitagliptin 100 mg, n = 35) were included. The baseline patient characteristics in the two groups were similar, with overall mean glycated haemoglobin (HbA1c) of 9.4% +/- 1.4%. The use of canagliflozin 300 mg was associated with greater reductions in HbA1c (least squares [LS] mean change -1.6% vs. -0.4%; p < 0.001), body weight (LS mean change -3.0 kg vs. 0.2 kg; p < 0.001) and systolic blood pressure (LS mean change: -9.7 mmHg vs. 0.4 mmHg; p < 0.001), as compared with sitagliptin 100 mg. About half of the patients on canagliflozin 300 mg reported mild osmotic diuresis-related side effects that did not lead to drug discontinuation. CONCLUSION: Our findings suggest that canagliflozin was more effective than sitagliptin in reducing HbA1c, body weight and systolic blood pressure in patients with T2DM, although its use was associated with an increased incidence of mild osmotic diuresis-related side effects. PMID- 29022041 TI - Empathy and burnout: a study on residents from a Singapore institution. AB - INTRODUCTION: Empathy and burnout are two entities that are important in a physician's career. They are likely to relate to each other and can be heavily influenced by surrounding factors, such as medical education, local practices and cultural expectations. To our knowledge, empathy and burnout studies have not been performed in Singapore. This study was designed to evaluate empathy and burnout levels using the Jefferson Scale of Physician Empathy (JSPE) and Maslach Burnout Inventory (MBI) among residents in Singapore, and compare them with the United States (US) literature. METHODS: The JSPE, MBI and a self-designed questionnaire were completed by 446 trainees at a residency-sponsoring institution in Singapore. RESULTS: Residents in Singapore had lower empathy and higher rates of burnout compared to US literature. Physician empathy was associated with burnout: residents with higher empathy scores had higher personal accomplishment (p < 0.001, r = 0.477, r2 = 0.200); and lower emotional exhaustion (p < 0.001, r = 0.187, r2 = 0.035) and depersonalisation (p < 0.001, r = 0.321, r2 = 0.103) scores. CONCLUSION: Residents in Singapore had lower empathy and higher burnout scores compared to the US literature. Further research into the underlying cause is imperative to guide intervention. PMID- 29022042 TI - Erratum to: Delayed post-operative tension pneumocephalus and pneumorrhachis. AB - Unfortunately, two author names were missed out in author group of the original publication. PMID- 29022043 TI - Letter to the Editor concerning "Scoliosis convexity and organ anatomy are related" by T. P. C. Schlosser et al. (Eur Spine J; 2017: doi:10.1007/s00586-017 4970-5). PMID- 29022044 TI - Erratum to: Action and function of Wnt/beta-catenin signaling in the progression from chronic hepatitis C to hepatocellular carcinoma. AB - Erratum to: J Gastroenterol (2017) 52:419-431 DOI 10.1007/s00535-016-1299-5. PMID- 29022045 TI - Author Correction: Molecular basis of mycobacterial survival in macrophages. AB - One of the author affiliations was missed to include in the original publication. The correct information is given below. PMID- 29022047 TI - Bilateral common iliac artery aneurysms as cause of renal failure. PMID- 29022046 TI - [Radium-223 dichloride in patients with castration-refractory prostate cancer]. AB - Since November 2013, the alpha emitter radium-223 dichloride (Alpharadin/Xofigo(r)) has been approved for the treatment of men with castration resistant prostate cancer (CRPC) with symptomatic bone metastases and no known visceral metastatic disease. In the ASYMPCA clinical trial, radium-223 was shown to improve overall survival and to reduce the time to the first symptomatic skeletal event. The use of radium-223 was associated with a reduction of pain and an improvement of health-related quality of life compared to the placebo arm. The efficacy of radium-223 dichloride was not inhibited by the use of chemotherapy with docetaxel. Studies have demonstrated a longer overall survival (OS) in patients with a combined treatment of abiraterone or enzalutamide; however, until this data is validated in larger clinical trials, the combination of radium-223 and abiraterone/enzalutamide cannot be recommended. Patients who have received concomitant medication with denosumab appeared to have a longer OS compared to patients who did not. A second treatment cycle of radium-223 was not associated with any adverse events when compared to the outcomes reported in the ASLYMPCA trial. Here the median radiographic progression-free survival was 9 months. PMID- 29022048 TI - Acute respiratory failure from esophageal dilatation. PMID- 29022051 TI - [Pigmentation disorders]. PMID- 29022050 TI - Concurrent radiotherapy with temozolomide vs. concurrent radiotherapy with a cisplatinum-based polychemotherapy regimen : Acute toxicity in pediatric high grade glioma patients. AB - PURPOSE: As the efficacy of all pediatric high-grade glioma (HGG) treatments is similar and still disappointing, it is essential to also investigate the toxicity of available treatments. METHODS: Prospectively recorded hematologic and nonhematologic toxicities of children treated with radiochemotherapy in the HIT GBM-C/D and HIT-HGG-2007 trials were compared. Children aged 3-18 years with histologically proven HGG (WHO grade III and IV tumors) or unequivocal radiologic diagnosis of diffuse intrinsic pontine glioma (DIPG) were included in these trials. The HIT-HGG-2007 protocol comprised concomitant radiochemotherapy with temozolomide, while cisplatinum/etoposide (PE) and PE plus ifosfamide (PEI) in combination with weekly vincristine injections were applied during radiochemotherapy in the HIT GBM-C/D protocol. RESULTS: Regular blood counts and information about cellular nadirs were available from 304 patients (leukocytes) and 306 patients (thrombocytes), respectively. Grade 3-4 leukopenia was much more frequent in the HIT GBM-C/D cohort (n = 88, 52%) vs. HIT-HGG-2007 (n = 13, 10%; P <0.001). Grade 3-4 thrombopenia was also more likely in the HIT GBM-C/D cohort (n = 21, 12% vs. n = 3,2%; P <0.001). Grade 3-4 leukopenia appeared more often in children aged 3-7 years (n = 38/85, 45%) than in children aged 8-12 years (n = 39/120, 33%) and 13-18 years (24/100, 24%; P =0.034). In addition, sickness was more frequent in the HIT GBM-C/D cohort (grade 1-2: 44%, grade 3-4: 6% vs. grade 1-2: 28%, grade 3-4: 1%; P <0.001). CONCLUSION: Radiochemotherapy involving cisplatinum-based polychemotherapy is more toxic than radiotherapy in combination with temozolomide. Without evidence of differences in therapeutic efficacy, the treatment with lower toxicity, i. e., radiotherapy with temozolomide should be used. PMID- 29022052 TI - Was endothermy in amniotes induced by an early stop in growth during ontogeny? AB - Endothermy and its evolution are still an unresolved issue. Here, we present a model which transforms an ectothermic amniote (ancestor) into a derived amniote (descendant) showing many characteristics seen in extant endothermic birds and mammals. Consistent with the fossil record within the ancestral lineages of birds and mammals, the model assumes that mutations in genes which get active during ontogeny and affect body growth resulted in a reduced asymptotic body size and an early growth stop of the descendant. We show that such a postulated early growth stop in the descendant simultaneously increases the growth rate and metabolic rate, and also changes six life history traits (offspring mass, annual clutch/litter mass, number of offspring per year, age and mass at which sexual maturity is reached, age at which the individual is fully grown) of the descendant compared to a similar-sized ancestor. All these changes coincide with known differences between recent ectothermic and endothermic amniotes. We also elaborate many other differences and similarities in biological characteristics supporting the early growth stop. An early stop in growth during ontogeny thus could have played a key role in the evolution of endothermy within the reptilia and therapsids. It generated variability in characteristics of ancestral ectotherms, which was subject to natural selection in the past and resulted in many adaptations linked to endothermy in today's birds and mammals. PMID- 29022053 TI - Glycated albumin (GA) and inflammation: role of GA as a potential marker of inflammation. AB - AIMS: Abnormal levels of glycated albumin (GA) are associated with the onset of both diabetes and inflammation. Although inflammation has long been associated with diabetes, this article aims to explore the underlying mechanisms of this relationship as it pertains to the role of GA. METHODS: We have reviewed 52 research articles since the year 2000. Common search terms used were "(inflammatory mediator) and GA" or "inflammation and GA". The findings have been organized according to diabetic complications with respect to the interactions of GA and inflammatory mediators. Glycated albumin and specific inflammatory mediators have been reported to play various roles in the pathogenesis of insulin resistance, atherosclerosis, coronary artery disease, retinopathy, and nephropathy. In the case of nephropathy and recently retinopathy, there is considerable evidence for GA in concert with inflammation playing a direct role in organ pathology. There is copious literature detailing GA's involvement in stimulating inflammatory markers and certain pro-inflammatory cytokines. A recent clinical study has shown GA to be a marker for inflammation in non-diabetic rheumatoid arthritis patients with the significance of standard inflammatory markers. CONCLUSIONS: The clinical utility of GA measurement may likely reside in its versatility as both a mediator of inflammation as well as a marker to track hyperglycemia and other diabetes complications. Further understanding of the role GA plays in glycemic and inflammatory diseases could lead to its acceptance as an independent bio-inflammatory marker. PMID- 29022054 TI - Diagnosis and management of 365 ureteric injuries following obstetric and gynecologic surgery in resource-limited settings. AB - INTRODUCTION: Ureteric injuries are among the most serious complications of pelvic surgery. The incidence in low-resource settings is not well documented. METHODS: This retrospective review analyzes a cohort of 365 ureteric injuries with ureterovaginal fistulas in 353 women following obstetric and gynecologic operations in 11 countries in Africa and Asia, all low-resource settings. The patients with ureteric injury were stratified into three groups according to the initial surgery: (a) obstetric operations, (b) gynecologic operations, and (c) vesicovaginal fistula (VVF) repairs. RESULTS: The 365 ureteric injuries in this series comprise 246 (67.4%) after obstetric procedures, 65 (17.8%) after gynecologic procedures, and 54 (14.8%) after repair of obstetric fistulas. Demographic characteristics show clear differences between women with iatrogenic injuries and women with obstetric fistulas. The study describes abdominal ureter reimplantation and other treatment procedures. Overall surgical results were good: 92.9% of women were cured (326/351), 5.4% were healed with some residual incontinence (19/351), and six failed (1.7%). CONCLUSIONS: Ureteric injuries after obstetric and gynecologic operations are not uncommon. Unlike in high resource contexts, in low-resource settings obstetric procedures are most often associated with urogenital fistula. Despite resource limitations, diagnosis and treatment of ureteric injuries is possible, with good success rates. Training must emphasize optimal surgical techniques and different approaches to assisted vaginal delivery. PMID- 29022055 TI - Illness Perceptions are Associated with Quality of Life in Patients with Fibrous Dysplasia. AB - Fibrous dysplasia (FD) is a rare bone disorder in which normal bone is replaced by fibrous tissue resulting in pain, deformities, pathological fractures or asymptomatic disease. Illness perceptions are patients' cognitions and emotions about their illness and its treatment, which may impact on Quality of Life (QoL). Here, we explore illness perceptions in patients with FD compared to other disorders, identify factors associated with illness perceptions and evaluate their relationship with QoL. Ninety-seven out of 138 eligible patients from the LUMC FD cohort completed the Illness Perception Questionnaire-Revised (IPQ-R) and the Short Form-36 (SF-36). Age, Gender, Skeletal Burden Score (SBS), FGF-23 levels, type of FD and SF-36 scores were analysed for an association with illness perceptions. We observed significant (p < 0.01) differences in patients' illness perceptions between FD subtypes in the domains: identity, timeline acute/chronic and consequences. Patients with craniofacial FD reported to perceive more consequences (p = 0.022). High SBS was associated with perceiving more negative consequences and attributing the cause of FD to psychological factors (p < 0.01), and high FGF-23 levels with attributing more symptoms to the disease and perceiving more consequences (p < 0.01). The IPQ-R domain identity, timeline acute/chronic, timeline cyclical, consequences, emotional representations and treatment control were significantly associated with impairments in QoL. Illness perceptions in patients with FD relate to QoL, differ from those in patients with other disorders, and are associated with disease severity. Identifying and addressing maladaptive illness perceptions may improve quality of life in patients with FD. PMID- 29022056 TI - Implant strategy affects scaffold stability and integrity in cartilage treatment. AB - PURPOSE: To identify the most appropriate implantation strategy for a novel chondral scaffold in a model simulating the early post-operative phase, in order to optimize the implant procedure and reduce the risk of early failure. METHODS: Eight human cadaveric limbs were strapped to a continuous passive motion device and exposed to extension-flexion cycles (0 degrees -90 degrees ). Chondral lesions (1.8 cm diameter) were prepared on condyles, patella and trochlea for the implant of a bi-layer collagen-hydroxyapatite scaffold. The first set-up compared four fixation techniques: press-fit (PF) vs. fibrin glue (FG) vs. pins vs. sutures; the second compared circular and square implants; the third investigated stability in a weight-bearing simulation. The scaffolds were evaluated using semi quantitative Drobnic and modified Bekkers scores. RESULTS: FG presented higher total Drobnic and Bekkers scores compared to PF (both p = 0.002), pins (p = 0.013 and 0.001) and sutures (p = 0.001 and < 0.0005). Pins offered better total Drobnic and Bekkers scores than PF in the anterior femoral condyles (p = 0.007 and 0.065), similar to FG. The comparison of round and square implants applied by FG showed worst results for square lesions (Drobnic score p = 0.049, Bekkers score p = 0.037). Finally, load caused worst overall results (Drobnic p = 0.018). CONCLUSIONS: FG improves the fixation of this collagen-HA scaffold regardless of lesion location, improving implant stability while preserving its integrity. Pins represent a suitable option only for lesions of the anterior condyles. Square scaffolds present weak corners, therefore, round implants should be preferred. Finally, partial weight-bearing simulation significantly affected the scaffold. These findings may be useful to improve surgical technique and post-operative management of patients, to optimize the outcome of chondral scaffold implantation. PMID- 29022057 TI - Multiple cannulated screws vs. dynamic hip screws for femoral neck fractures : A meta-analysis. AB - OBJECTIVE: Various fixation devices have been reported for stabilization of femoral neck fractures. Numerous studies on arthroplasty versus internal fixation devices in the treatment of femoral neck fractures have been performed, but the optimal approach for internal fixation has not been analyzed. METHODS: A meta analysis and system evaluation were performed to compare clinical effects. We searched PubMed, Embase, Cochrane Library, and Web of ScienceTM for randomized, controlled trials (RCTs) comparing multiple cannulated screws (MCS) with dynamic hip screws (DHS) and analyzed the failure rate of operations, the reoperation rate, and postoperative complications. Risk ratios (RRs) and mean differences from each trial were pooled using random effects or fixed effects models, depending on study heterogeneity. The analysis was performed using RevMan5.2. RESULTS: In this meta-analysis, 592 femoral neck fractures from 7 studies were assessed, and the meta-analysis results indicated significant differences in reoperation (RR 1.44, 95% confidence interval [CI] 1.10-1.88, P = 0.008) and failure rate (RR 2.28, 95% CI 1.10-4.72, P = 0.03), but no significant differences in the rate of postoperative complications between the MCS group and DHS group. CONCLUSIONS: DHS fixation has a larger skin incision and more soft tissue dissection, but it is associated with lower rates of fixation failure, reoperation, and overall rate of postoperative complications, and its use in elderly patients with osteoporosis is still recommended due to simplicity, efficacy, and high overall success rate. Multicenter RCTs with large samples are needed to better understand the comparative efficacy and safety of MCS and DHS in femoral neck fractures of restricted fracture type. PMID- 29022058 TI - [PSMA-radioguided surgery in localised recurrent prostate cancer]. AB - Recently, prostate-specific membrane antigen radioguided surgery (PSMA-RGS) was introduced for targeted resection of localised prostate cancer recurrence. Preliminary results show that PSMA-RGS is very sensitive and specific in tracking suspicious lesions intraoperatively. Prerequisite for PSMA-RGS is a positive 68Ga PSMA positron emission tomography (PET) scan with a preferably singular soft tissue or lymph node recurrence. The first 63 patients treated with PSMA-RGS were analyzed. The extracorporal analysis of a total of 277 tissue specimens yielded the following test quality criteria regarding the presence of malignant tissue: sensitivity 86.2%, specificity 96.4%, positive predictive value 94%, negative predictive value 91.5%. Oncological follow-up data was available from 59 patients. There was a drop in PSA (prostate specific antigen) below 0.2 ng/ml in 38 patients (67%). Of these 38 patients, 17 (45%) are free of biochemical recurrence after a median follow-up of 12.3 months (6.7-31.9 months). Clavien Dindo grade III complications occurred in 6 of 63 patients (9.5%). In summary, PSMA-RGS proved to be of high value in patients with localised prostate cancer recurrence for exact localisation and resection of oftentimes small metastatic tissue using intraoperative and ex vivo gamma-probe measurements. Furthermore, PSMA-RGS has the potential to positively influence oncological outcomes. However, patient identification on the basis of 68Ga-PSMA PET imaging and clinical parameters is crucial to obtain satisfactory results. PMID- 29022060 TI - [Paresthesia and swollen condition of the tongue]. PMID- 29022059 TI - Targeted intervention of acute postoperative infection after rotator cuff repair results in good functional outcomes. AB - PURPOSE: The primary goal of this retrospective review of a prospective database was to document the functional results after acute postoperative deep infection following rotator cuff repair in a single orthopaedic unit over a period of 5 years. Secondary goals were to document the effect of infection on healing of the cuff repair and to describe its incidence, diagnostic challenges, pathogens and management. METHODS: Patients undergoing arthroscopic rotator cuff repair were prospectively registered from 2010 to 2014. Eleven out of 1072 repairs developed an acute postoperative infection. The patients were examined with an MRI scan, Constant-Murley (CM) score and the Western Ontario Rotator Cuff Index (WORC) at final follow-up (median of 22 months). RESULTS: All 11 patients who developed acute postoperative deep infections were males. Median age was 56 years (range 41 68). All patients underwent arthroscopic debridement and biopsies were collected at a median of 26 days (range 14-50) after primary surgery. In ten patients, Propionibacterium acnes was cultured, six of these patients also had positive cultures for coagulase-negative staphylococci. In the remaining patient, only coagulase-negative staphylococcus was cultured. Five patients were treated with one arthroscopic debridement, five had two arthroscopic debridements and one required arthroscopic debridement four times before the infection was eradicated. Two patients had their implants removed due to loosening of the suture anchors. All patients were treated with parenteral antibiotics for 1-4 weeks, followed by oral treatment for 1-5 weeks. At median 22 months (range 11-28) follow-up the median CM score was 84 and median WORC index was 81%. Ten patients had a postoperative MRI scan after a median of 23 months (range 3-49), with eight presenting a healed cuff repair. CONCLUSION: The findings of this study support the rapid, targeted intervention of acute postoperative infection after RC repair with immediate arthroscopic debridement, irrigation and biopsies for bacteriological diagnostics followed by parenteral antibiotics. Furthermore, repeated arthroscopic debridement and irrigation are recommended if signs of infection persist. Removal of the implant is rarely needed. Despite the postoperative acute infection, these patients presented good functional results at final follow-up. LEVEL OF EVIDENCE: Level III. PMID- 29022061 TI - What's new in trace elements? PMID- 29022063 TI - Community Structure of Active Aerobic Methanotrophs in Red Mangrove (Kandelia obovata) Soils Under Different Frequency of Tides. AB - Methanotrophs are important microbial communities in coastal ecosystems. They reduce CH4 emission in situ, which is influenced by soil conditions. This study aimed to understand the differences in active aerobic methanotrophic communities in mangrove forest soils experiencing different inundation frequency, i.e., in soils from tidal mangroves, distributed at lower elevations, and from dwarf mangroves, distributed at higher elevations. Labeling of pmoA gene of active methanotrophs using DNA-based stable isotope probing (DNA-SIP) revealed that methanotrophic activity was higher in the dwarf mangrove soils than in the tidal mangrove soils, possibly because of the more aerobic soil conditions. Methanotrophs affiliated with the cluster deep-sea-5 belonging to type Ib methanotrophs were the most dominant methanotrophs in the fresh mangrove soils, whereas type II methanotrophs also appeared in the fresh dwarf mangrove soils. Furthermore, Methylobacter and Methylosarcina were the most important active methanotrophs in the dwarf mangrove soils, whereas Methylomonas and Methylosarcina were more active in the tidal mangrove soils. High-throughput sequencing of the 16S ribosomal RNA (rRNA) gene also confirmed similar differences in methanotrophic communities at the different locations. However, several unclassified methanotrophic bacteria were found by 16S rRNA MiSeq sequencing in both fresh and incubated mangrove soils, implying that methanotrophic communities in mangrove forests may significantly differ from the methanotrophic communities documented in previous studies. Overall, this study showed the feasibility of 13CH4 DNA-SIP to study the active methanotrophic communities in mangrove forest soils and revealed differences in the methanotrophic community structure between coastal mangrove forests experiencing different tide frequencies. PMID- 29022062 TI - FAK tyrosine phosphorylation is regulated by AMPK and controls metabolism in human skeletal muscle. AB - AIMS/HYPOTHESIS: Insulin-mediated signals and AMP-activated protein kinase (AMPK) mediated signals are activated in response to physiological conditions that represent energy abundance and shortage, respectively. Focal adhesion kinase (FAK) is implicated in insulin signalling and cancer progression in various non muscle cell types and plays a regulatory role during skeletal muscle differentiation. The role of FAK in skeletal muscle in relation to insulin stimulation or AMPK activation is unknown. We examined the effects of insulin or AMPK activation on FAK phosphorylation in human skeletal muscle and the direct role of FAK on glucose and lipid metabolism. We hypothesised that insulin treatment and AMPK activation would have opposing effects on FAK phosphorylation and that gene silencing of FAK would alter metabolism. METHODS: Human muscle was treated with insulin or the AMPK-activating compound 5-aminoimadazole-4 carboxamide ribonucleotide (AICAR) to determine FAK phosphorylation and glucose transport. Primary human skeletal muscle cells were used to study the effects of insulin or AICAR treatment on FAK signalling during serum starvation, as well as to determine the metabolic consequences of silencing the FAK gene, PTK2. RESULTS: AMPK activation reduced tyrosine phosphorylation of FAK in skeletal muscle. AICAR reduced p-FAKY397 in isolated human skeletal muscle and cultured myotubes. Insulin stimulation did not alter FAK phosphorylation. Serum starvation increased AMPK activation, as demonstrated by increased p-ACCS222, concomitant with reduced p-FAKY397. FAK signalling was reduced owing to serum starvation and AICAR treatment as demonstrated by reduced p-paxillinY118. Silencing PTK2 in primary human skeletal muscle cells increased palmitate oxidation and reduced glycogen synthesis. CONCLUSIONS/INTERPRETATION: AMPK regulates FAK signalling in skeletal muscle. Moreover, siRNA-mediated FAK knockdown enhances lipid oxidation while impairing glycogen synthesis in skeletal muscle. Further exploration of the interaction between AMPK and FAK may lead to novel therapeutic strategies for diabetes and other chronic conditions associated with an altered metabolic homeostasis. PMID- 29022065 TI - [Allograft reconstruction in revision elbow arthroplasty]. AB - BACKGROUND: There is limited knowledge on composite allograft reconstructions in revision elbow arthroplasty. A major reason for the restricted use of freshly frozen allografts is the divergent legal requirements for allograft procurement in European countries. RESULTS: The opportunities and limitations of this complex revision surgery of the elbow are outlined based on our own restricted experiences, as well as on current literature. Our experience is in accordance with that of other institutions. The results are heterogeneous and range from satisfying to poor. The main problems are the increased risk of infection and the lack of allograft incorporation. Therefore, salvage procedures such as resection arthroplasty still need to be considered. It is not possible to define universally applicable treatment guidelines due to the limited caseload, even when an acceptable functional outcome can be achieved in the majority of cases. Due to the lack of a "simple solution" or valid guidelines, treatment strategies should be individualized for each patient. Complications such as infection and failed allograft incorporation represent the key issues of this procedure and remain a major challenge in revision surgery. PMID- 29022064 TI - Proinflammatory switch from Galphas to Galphai signaling by Glucagon-like peptide 1 receptor in murine splenic monocyte following burn injury. AB - OBJECTIVE: Glucagon-like peptide-1 (GLP-1)-based therapy via G protein-coupled receptor (GPCR) GLP-1R, to attenuate hyperglycemia in critical care has attracted great attention. However, the exaggerated inflammation by GLP-1R agonist, Exendin 4, in a mouse model of burn injury was quite unexpected. Recent studies found that GPCR might elicit proinflammatory effects by switching from Galphas to Galphai signaling in the immune system. Thus, we aimed to investigate the possible Galphas to Galphai switch in GLP-1R signaling in monocyte following burn injury. MATERIALS AND METHODS: Splenic monocytes from sham and burn mice 24 h following burn injury were treated with consecutive doses of Exendin-4 alone or in combination with an inhibitor of Galphai signaling (pertussis toxin, PTX), or a blocker of protein kinase A (H89). Cell viability was assessed by CCK-8, and the supernatant was collected for cytokine measurement by ELISA. Intracellular cAMP level, phosphorylated PKA activity, and nuclear NF-kappaB p65 were determined by ELISA, ERK1/2 activation was analyzed by Western blot. The expression of GLP-1R downstream molecules, Galphas, Galphai and G-protein coupled receptor kinase 2 (GRK2) were examined by immunofluorescence staining and Western blot. RESULTS: Exendin-4 could inhibit the viability of monocyte from sham rather than burn mice. Unexpectedly, it could also reduce TNF-alpha secretion from sham monocyte while increase it from burn monocyte. The increased secretion of TNF alpha by Exendin-4 from burn monocyte could be reversed by pretreatment of PTX or H89. Accordingly, Exendin-4 could stimulates cAMP production dose dependently from sham instead of burn monocyte. However, the blunt cAMP production from burn monocyte was further suppressed by pretreatment of PTX or H89 after 6-h incubation. Nevertheless, phosphorylated PKA activity was significantly increased by low dose of Exendin-4 in sham monocyte, by contrast, it was enhanced by high dose of Exendin-4 in burn monocyte after 1-h incubation. Following Exendin-4 treatment for 2 h ex vivo, total nuclear NF-kappaB and phosphorylated NF-kappaB activity, as well as cytoplasmic pERK1/2 expressions were reduced in sham monocyte, however, only pERK1/2 was increased by Exendin-4 in burn monocytes. Moreover, reduced expressions of GLP-1R, GRK-2 and Galphas in contrast with increased expression of Galphai were identified in burn monocyte relative to sham monocyte. CONCLUSIONS: This study presents an unexpected proinflammatory switch from Galphas to Galphai signaling in burn monocyte, which promotes ERK1/2 and NF kappaB activation and the downstream TNF-alpha secretion. This phenomenon is most probably responsible for proinflammatory response evoked by Galphas agonist Exendin-4 following burn injury. PMID- 29022067 TI - Cost-Effective Live Cell Density Determination of Liquid Cultured Microorganisms. AB - Live monitoring of microorganisms growth in liquid medium is a desired parameter for many research fields. A wildly used approach for determining microbial liquid growth quantification is based on light scattering as the result of the physical interaction of light with microbial cells. These measurements are generally achieved using costly table-top instruments; however, a live, reliable, and straight forward instrument constructed using parts that are inexpensive may provide opportunities for many researchers. Here, such an instrument has been constructed and tested. It consists of modular test tube holding chambers, each with a low power monochromatic light-emitting diode, and a monolithic photodiode. A microcontroller connects to all modular chambers to control the diodes, and send the live data to either an LCD screen, or a computer. This work demonstrate that this modular instrument can determine precise cell concentrations for the bacteria Escherichia coli and Pseudomonas syringae pv. tomato DC3000, as well as Saccharomyces cerevisiae yeast. PMID- 29022066 TI - Spirosoma harenae sp. nov., a Bacterium Isolated from a Sandy Beach. AB - A Gram-stain-negative, non-motile, non-spore-forming, rod-shaped, aerobic bacterium, designated 15J8-9T, was isolated from a sandy beach in Jeju Island, South Korea. The isolate was able to grow between 10 and 30 degrees C, pH 5-8, and in presence of 0-1% (w/v) NaCl. Based on 16S rRNA gene phylogenetic analysis, the novel strain was closely related to members of the genus Spirosoma (96.1 90.9% similarities) and showed highest sequence similarity to Spirosoma panaciterrae DSM 21099T (96.1%). The G + C content of the genomic DNA of strain 15J8-9T was 45.1 mol%. The isolate contained menaquinone MK-7 as the predominant respiratory quinone, phosphatidylethanolamine as the major polar lipid, and summed feature 3 (C16:1 omega6c/C16:1 omega7c; 28.0%), C16:1 omega5c (23.4%), iso C15:0 (13.5%), and C16:0 (11.5%) as the major fatty acids that supported the affiliation of strain 15J8-9T to the genus Spirosoma. The isolate could be differentiated clearly from recognized Spirosoma species on the basis of several phenotypic, genotypic and chemotaxonomic features. Therefore, strain 15J8-9T is considered to represent a novel species of the genus the genus Spirosoma, for which the name Spirosoma harenae sp. nov. is proposed. The type strain is 15J8-9T (= KCTC 52030T = JCM 31993T). PMID- 29022069 TI - Guest editor's introduction: abdominal aorta. PMID- 29022068 TI - Esophagectomy for End-Stage Achalasia: Systematic Review and Meta-analysis. AB - BACKGROUND: Indications for surgery and clinical outcomes of esophagectomy in the management of end-stage achalasia are not clearly defined. The aim of this systematic review and meta-analysis was to provide evidence-based information to help in the decision-making and in the choice of surgical technique. METHODS: An extensive literature search was conducted to identify all reports on esophagectomy for end-stage achalasia patients over the past three decades. MEDLINE, Embase and Cochrane databases were thoroughly consulted matching the terms "achalasia," "end-stage achalasia," "esophagectomy" and "esophageal resection" with "AND" and "OR." Short- and long-term outcome data were extracted. Pooled prevalence of pneumonia, anastomotic leakage and mortality were calculated using Freeman-Tukey double arcsine transformation and DerSimonian-Laird estimator in random effect meta-analysis. Heterogeneity among studies was evaluated using I 2-index and Cochrane Q test. Meta-regression was used to address the effect of potential confounders. RESULTS: Eight papers published between 1989 and 2014 matched the inclusion criteria. In total, 1307 patients were included. Esophagectomy was performed through a transthoracic (78.7%) or a transhiatal (21.3%) approach. The stomach was used as an esophageal substitute in 95% of patients. Pooled prevalence of pneumonia, anastomotic leakage and mortality were 10% (95% CI 4-18%), 7% (95% CI 4-10%) and 2% (95% CI 1-3%), respectively. CONCLUSIONS: Esophagectomy for end-stage achalasia is safe and effective. Based on the results of this study, esophagectomy should be performed without hesitation in patients who are fit for major surgery and present with disabling symptoms, poor quality of life and dolichomegaesophagus recalcitrant to multiple endoscopic dilatations and/or surgical myotomies. PMID- 29022070 TI - Surgical Resection for Pulmonary Carcinoid: Long-Term Results of Multicentric Study-The Importance of Pathological N Status, More Than We Thought. AB - BACKGROUND: Histological subdivision into typical (TC) and atypical (AC) is crucial for treatment and prognosis of lung carcinoids but can be also very challenging, even for experts. In this study, we aimed to strengthen or reduce the prognostic value of several pathological, clinical, or per-operative factors some of which are still controversial. METHODS: We retrospectively reviewed clinical records related to 195 patients affected by TC (159) or AC (36) surgically treated between 2000 and 2014, in three different centers. Survival and subtypes comparison analyses were performed to identify potential prognostic factors. RESULTS: TCs showed a lower rate of nodal involvement than ACs (N0 = 94.9%; N1 = 1.9%; N2 = 3.2% in typical and N0 = 63.8%; N1 = 16.6%; N2 = 19.4% in atypical carcinoids, respectively, p < 0.0001). Long-term oncological results of resected carcinoids were significantly better in TCs than ACs with higher 5- and 10-year overall survival rates (97.2 and 88.2% vs. 77.9 and 68.2%, respectively; p = 0.001) and disease-free survival rates (98.2 and 90.3% in typical and 80.8 and 70.7% atypical carcinoids, respectively; p = 0.001). Risk factors analysis revealed that AC subtype [HR 4.33 (95% CI 1.72-8.03), p = 0.002], pathological nodal involvement [HR 3.05 (95% CI 1.77-5.26), p < 0.0001], and higher SUVmax [HR 4.33 (95% CI 1.03-7.18), p = 0.002] were independently and pejoratively associated with overall survival. Factors associated with a higher risk of recurrence were AC subtype [HR 6.13 (95% CI 1.13-18.86), p = 0.002]; nodal involvement [HR 5.48 (95% CI 2.85-10.51), p < 0.0001]; higher Ki67 expression level [HR 1.09 (95% CI 1.01-1.20), p = 0.047]; and SUVmax [HR 1.83 (95% CI 1.04 3.23), p = 0.035]. CONCLUSION: Surgery for lung carcinoids allows satisfactory oncological results which mainly depend on carcinoid subtype dichotomy, pathological nodal status, and SUVmax. PMID- 29022071 TI - Sex differences in tobacco withdrawal and responses to smoking reduced-nicotine cigarettes in young smokers. AB - RATIONALE: Policies that establish a standard for reduced nicotine content in cigarettes can decrease the prevalence of smoking in the USA. Cigarettes with nicotine yields as low as 0.05 mg produce substantial occupancy of nicotinic acetylcholine receptors (26%), but women and men respond differently to these cigarettes. OBJECTIVE: This study aimed to measure responses to smoking cigarettes that varied widely in nicotine yields, investigating whether sex differences in the effects on craving, withdrawal, and affect would be observed at even lower nicotine yields than previously studied, and in young smokers. METHODS: Overnight abstinent young smokers (23 men, 23 women, mean age 22.18) provided self-reports of craving, withdrawal, and affect before and after smoking cigarettes with yields of 0.027, 0.110, 0.231, or 0.763 mg nicotine, and evaluated characteristics of each cigarette. RESULTS: Compared to abstinent young men, abstinent young women reported greater negative affect, psychological withdrawal, and sedation, all of which were relieved equally by all cigarettes. Men but not women reported greater craving reduction, perceived nicotine content, and cigarette liking with increasing nicotine dose. CONCLUSIONS: Men may experience less smoking-related relief of craving, and enjoy cigarettes less, if nicotine yields are reduced to very low levels. Conversely, women respond equally well to cigarettes with nicotine yields as low as 0.027 mg as to cigarettes with nicotine yields 28-fold higher (0.763 mg). These differences are relevant for policy regarding reduced nicotine in cigarettes and may influence the efficacy and acceptability of reduced-nicotine cigarettes as smoking cessation aids. PMID- 29022072 TI - Effect of pathological high-risk features on cancer-specific mortality in non metastatic clear cell renal cell carcinoma: a tool for optimizing patient selection for adjuvant therapy. AB - PURPOSE: Adjuvant therapies for non-metastatic renal cell carcinoma (nmRCC) are being tested to improve outcomes in patients with high-risk (hR) nmRCC. The objective of the current study is to test the ability of three hR features to identify patients who are at the highest risk of cancer-specific mortality (CSM) after partial or radical nephrectomy. METHODS: Within the Surveillance Epidemiology and End Results (SEER) database (1988-2013), we identified 23,632 nm "clear cell" RCC partial or radical nephrectomy patients with hR features: Fuhrman grade (FG) 3 or 4 or pathological classifications T3a or T3b or lymph node invasion (LNI), or combination of these. Kaplan-Meier analyses (KM) and multivariable Cox's regression models (CRM) evaluated the effect of hR features on CSM. RESULTS: Overall 11,568 (48.9%) patients harbored FG3-4, 5575 (23.6%) pT3a/b, 140 (0.6%) LNI, 5366 (22.7%) FG3-4 and pT3a/b, 183 (0.8%) LNI and pT3a/b, 203 (0.9%) LNI and FG3-4 and 597 (2.5%) LNI, FG3-4 and pT3a/b. Median CSM-free survival was 51, 58 and 22 months for LNI and pT3a/b, for LNI and FG3-4 and for LNI, FG3-4 and pT3a/b and was not reached for the other groups. These results remained unchanged in multivariable CRMs, where all hR features represented independent predictors. CONCLUSIONS: Individuals with combination of LNI with FG3 4 or pT3a/b and patients with all three hR features are at highest risk of CSM. In consequence, these patients may represent ideal candidates for adjuvant therapy either in clinical practice or future prospective trials. PMID- 29022073 TI - The contribution of cell wall composition in the expansion of Camellia sinensis seedlings roots in response to aluminum. AB - MAIN CONCLUSION: Treatment with aluminum triggers a unique response in tea seedlings resulting in biochemical modification of the cell wall, regulation of the activity of the loosening agents, and elongation of root. Unlike most terrestrial plants, tea (Camellia sinensis L.) responds to aluminum (Al) through the promotion of its root elongation; but the real mechanism(s) behind this phenomenon is not well understood. A plausible relationship between the modifications of the cell wall and the promotion of root elongation was examined in tea seedlings treated for 8 days with 400 uM Al. The mechanical properties of the cell wall, the composition of its polysaccharides and their capacity to absorb Al, the expression of genes, and the activities of the wall-modifying proteins were studied. With 6 h of the treatment, about 40% of the absorbed Al was bound to the cell wall; however, the amount did not increase thereafter. Meanwhile, the activity of pectin methylesterase, the level of pectin demethylation, the amounts and the average molecular mass of xyloglucan in the root apices significantly decreased upon exposure to Al, resulting in the reduction of Al binding sites. On the other hand, the activity and the gene expression of peroxidase decreased, whereas the activity and gene expression of xyloglucan-degrading enzymes, the expression of expansin A and the H +-ATPase4 genes increased in the Al-treated plants. Interestingly, it was accompanied by the increase of elastic and viscous extensibility of the root apices. From the results, it can be suggested that the biochemical modification of the cell walls reduces sites of Al binding to roots and triggers the activity of the loosening agents, thereby increasing the length of tea roots. PMID- 29022075 TI - A negative answer to a conjecture arising in the study of selection-migration models in population genetics. AB - We deal with the study of the evolution of the allelic frequencies, at a single locus, for a population distributed continuously over a bounded habitat. We consider evolution which occurs under the joint action of selection and arbitrary migration, that is independent of genotype, in absence of mutation and random drift. The focus is on a conjecture, that was raised up in literature of population genetics, about the possible uniqueness of polymorphic equilibria, which are known as clines, under particular circumstances. We study the number of these equilibria, making use of topological tools, and we give a negative answer to that question by means of two examples. Indeed, we provide numerical evidence of multiplicity of positive solutions for two different Neumann problems satisfying the requests of the conjecture. PMID- 29022074 TI - Probable psychiatric disorder in a rural community of West Bengal, India. AB - PURPOSE: India faces multiple challenges to mitigate a high burden of psychiatric disorders. The risk of developing psychiatric disorder among the rural Indian population is poorly investigated. This study aims to understand the factors associated with probable psychiatric disorder (PPD) among a select rural Indian population. METHODS: Data from the Birbhum population project of the society for health and demographic surveillance, West Bengal, India, were utilized. Cross sectional data covering a sample of 31,135 respondents (male 15,384 and female 15,751) aged >= 16 years were used. The General Health Questionnaire-28 was administered and the responses were computed into three categories: psychological case, psychological caseness, and normal. Bivariate and multivariate ordered logit regression analyses were applied to attain the study objective. RESULTS: Of the total population, 26% of respondents were identified with PPD. People aged >= 60 years, females, divorced/separated/widowed individuals, the unemployed and people with no formal education, individuals from the poorest economic group, and people with a history of selling or mortgaging assets towards their healthcare expenditure had a higher prevalence of psychiatric case within their respective group. CONCLUSIONS: A high burden of PPD was estimated in the select rural community. While designing an intervention for measuring and addressing psychiatric disorders, the socioeconomic gradient of PPD could be helpful. PMID- 29022076 TI - Biosynthesis and regulation of cyanogenic glycoside production in forage plants. AB - The natural products cyanogenic glycosides (CNglcs) are present in various forage plant species including Sorghum spp., Trifolium spp., and Lotus spp. The release of toxic hydrogen cyanide (HCN) from endogenous CNglcs, which is known as cyanogenesis, leads to a serious problem for animal consumption while as defensive secondary metabolites, CNglcs play multiple roles in plant development and responses to adverse environment. Therefore, it is highly important to fully uncover the molecular mechanisms of CNglc biosynthesis and regulation to manipulate the contents of CNglcs in forage plants for fine-tuning the balance between defensive responses and food safety. This review summarizes recent studies on the production, function, polymorphism, and regulation of CNglcs in forage plants, aiming to provide updated knowledge on the ways to manipulate CNglcs for further beneficial economic effects. PMID- 29022077 TI - No association between periodontitis and preterm low birth weight: a case-control study. AB - PURPOSE: This study aimed to investigate the association between periodontitis in pregnant women and adverse pregnancy outcomes by heeding confounding risk factors for preterm low birth weight infants. METHODS: This study was reported according to The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement. A case-control study was conducted. Medical records of all pregnant women attending a prenatal care clinic were screened. Those between 21 and 34 years and gestational age of 28-32 weeks were initially enrolled in the study. The exclusion criteria were then applied: diabetes mellitus, genitourinary tract infections, or HIV infection; previous multiple gestations; previous preterm birth/low birth weight infants; in vitro fertilization procedures; placental, cervical/uterine abnormalities; history of infertility; history of drug abuse; and any medical conditions that required antibiotics prophylaxis. Patients' anthropometric, demographic, and behavioral characteristics were collected. The periodontal clinical parameters were obtained from six sites per tooth: clinical attachment level, probing pocket depth, dental plaque index, and gingival bleeding index. Women were then allocated into two groups: mothers of preterm and/or low birth weight newborns (cases) and mothers of full-term and normal birth weight newborns (controls). RESULTS: Periodontal clinical parameters were analyzed and reported separately for each group, and no significant differences were observed (p > 0.05). Logistic regression analysis revealed that periodontal clinical parameters were not associated with the adverse pregnancy outcomes. CONCLUSION(S): After controlling for confounding factors, our results suggest that maternal periodontal disease is not a risk factor associated with preterm low birth weight infants. PMID- 29022078 TI - Survival benefit of mantle cell lymphoma patients enrolled in clinical trials; a joint study from the LYSA group and French cancer registries. AB - PURPOSE: Mantle cell lymphoma (MCL) is a rare non-Hodgkin's lymphoma entity with a poor prognosis. Therapeutic advances have improved the survival of patients enrolled in clinical trials; however, their impact on patients outside clinical trials remains unclear. In this work, we compared patient outcome inside and outside clinical trials. METHODS: We identified MCL patients recorded in six French population-based registries between 2008 and 2012 to perform a comparison with patients enrolled in two prospective multicenter MCL clinical trials conducted by the LYSA group during the same period. Variables associated with inclusion in a clinical trial were identified using a logistic regression. Pohar Perme estimator and Nelson et al. flexible parametric model was used to estimate net survival probabilities and prognosis factors on excess mortality. RESULTS: A total of 312 registry patients were compared to the 372 patients enrolled in LYSA clinical trials. Patients included in clinical trials were younger (median age 60 vs 74, p < 0.001). Age and Ann Arbor stage IV were independently associated with enrollment [OR = 0.09 (0.06-0.12) and OR = 1.61 (1.11-2.34), respectively]. The 4 year net survival was better in clinical trials [79.9% (75.9-84.7) vs 60.3% (53.6 67.0)]. This result was confirmed in multivariate analysis in patients older than 65 years with a lower excess mortality rate [0.33 (0.17-0.66)]. CONCLUSIONS: MCL included in trials are highly selected patients who are not representative of MCL patients who are encountered in everyday practice. With widened inclusion criteria, clinical trial patients could be more representative of the general population. PMID- 29022079 TI - CO2 laser stapedotomy safety: influence of laser energy and time on bone conduction hearing levels. AB - Total laser energy in CO2 stapedotomy depends on the laser settings and the amount of applications. It is unclear if the amount of total laser energy affects bone-conduction hearing thresholds and if possible effects are temporary or permanent. Alterations of bone-conduction hearing thresholds after single or multiple-shot CO2 laser stapedotomy were analyzed between 1 and 3 weeks and 1.5-6 months after primary (n = 501) or revision surgeries (n = 153) and correlated to time, laser energy, frequency, surgical technique, and pathology encountered in revision stapedotomy. In both time periods, most patients showed a lower bone conduction threshold in the four-tone puretone average (PTA) at frequencies of 0.5, 1, 2, and 3 kHz that further improved over time. Between 1 and 3 weeks, the improvement was significant in subgroups with cumulative energies lower 1 J and successful one-shot technique or in revisions without laser application. The remaining subgroups with higher total energies showed significant improvements between 1.5 and 6 months. At 4 and 8 kHz, significant improvements were found during 1.5-6 months after primary and revision surgery independent of the used energy. Repeated CO2 laser applications showed no impairment in bone-conduction thresholds and can thus be considered as safe. In most patients, significant, yet unexplained, improvements in bone-conduction hearing thresholds were noticed in a time- and energy-related pattern. PMID- 29022080 TI - Urinary potassium to urinary potassium plus sodium ratio can accurately identify hypovolemia in nephrotic syndrome: a provisional study. AB - : There is evidence pointing to a decrease of the glomerular filtration rate (GFR) in a subgroup of nephrotic children, likely secondary to hypovolemia. The aim of this study is to validate the use of urinary potassium to the sum of potassium plus sodium ratio (UK/UK+UNa) as an indicator of hypovolemia in nephrotic syndrome, enabling detection of those patients who will benefit from albumin infusion. We prospectively studied 44 nephrotic children and compared different parameters to a control group (36 children). Renal perfusion and glomerular permeability were assessed by measuring clearance of para aminohippurate and inulin. Vaso-active hormones and urinary sodium and potassium were also measured. Subjects were grouped into low, normal, and high GFR groups. In the low GFR group, significantly lower renal plasma flow (p = 0.01), filtration fraction (p = 0.01), and higher UK/UK+UNa (p = 0.03) ratio were noted. In addition, non-significant higher plasma renin activity (p = 0.11) and aldosteron (p = 0.09) were also seen in the low GFR group. CONCLUSION: A subgroup of patients in nephrotic syndrome has a decrease in glomerular filtration, apparently related to hypovolemia which likely can be detected by a urinary potassium to potassium plus sodium ratio > 0.5-0.6 suggesting benefit of albumin infusion in this subgroup. What is Known: * Volume status can be difficult to assess based on clinical parameters in nephrotic syndrome, and albumin infusion can be associated with development of pulmonary edema and fluid overload in these patients. What is New: * Urinary potassium to the sum of urinary potassium plus sodium ratio can accurately detect hypovolemia in nephrotic syndrome and thus identify those children who would probably respond to albumin infusion. PMID- 29022082 TI - [Persistent abdominal complaints after laparoscopic appendectomy]. PMID- 29022081 TI - Surgical management and outcomes of 12 cases of Wilms tumour with intracardiac extension from a single centre. AB - PURPOSE: To review demographics, effect of preoperative chemotherapy on tumour thrombus, imaging, operative strategy, and outcomes of 12 patients presenting with intracardiac extension of Wilms tumour thrombus. METHODS: A retrospective audit was undertaken on patients with intracardiac extension of Wilms tumour. Patients were identified from the oncology database and information obtained on clinical presentation, stage, preoperative treatment, surgical procedures and complications, histology, and survival status. Ethics approval was obtained from the University of Cape Town Human Research Ethics Committee. RESULTS: From 1984 to 2016, 337 children with Wilms tumour were treated. Twelve (3.6%) had intracardiac extension of tumour thrombus, nine into the right atrium, and three into the right ventricle. Ultrasound, computerized tomography, magnetic resonance imaging, and echocardiograms were used to assess thrombus level. Patients were staged as stage III(8) and IV(4). All patients received preoperative chemotherapy. Thrombus retracted from the heart in two cases. One patient died preoperatively. Eleven underwent laparotomy, median sternotomy, and cardiopulmonary bypass (CPB). Four underwent cavectomy. Five required cavoatrial patches. Thrombus extending into the hepatic veins was extracted in five patients. There was one intraoperative complication and one perioperative death. Thrombus histology showed viable tumour in 9 of 11 patients. Three patients died of progressive disease. Seven patients are currently disease free. CONCLUSION: A combination of imaging is required to determine thrombus extent, and this facilitates surgical planning. Preoperative chemotherapy may cause thrombus regression, thus avoiding CPB. CPB offers appropriate conditions for safe tumour thrombus excision. Full management in centres with appropriately experienced staff and facilities for CPB is recommended. PMID- 29022085 TI - Rare pancreatic tumors. AB - In this review, we will focus on rare pancreatic tumors. Most of these tumors do not have distinct characteristic appearances so the key to diagnosis requires a combination of imaging appearance, laboratory data, patient demographics, and associated medical syndromes in order to narrow the differential diagnosis. Nonetheless, imaging plays a vital role in narrowing the differential and guiding management. While there are many variant pathologic entities that cannot be encompassed by a single review, we aim to illustrate the imaging appearance of less common pancreatic tumors highlighting key distinctive diagnostic characteristics and discuss the implications for management. While there is overlap in the imaging appearances of many of these entities, for educational purposes, lesions will be categorized into solid (hypoenhancing and hyperenhancing), cystic lesions, mesenchymal neoplasms, and neoplasms seen in younger patients (< 40 years). PMID- 29022083 TI - Adolescent cannabinoid exposure effects on natural reward seeking and learning in rats. AB - RATIONALE: Adolescence is characterized by endocannabinoid (ECB)-dependent refinement of neural circuits underlying emotion, learning, and motivation. As a result, adolescent cannabinoid receptor stimulation (ACRS) with phytocannabinoids or synthetic agonists like "Spice" cause robust and persistent changes in both behavior and circuit architecture in rodents, including in reward-related regions like medial prefrontal cortex and nucleus accumbens (NAc). OBJECTIVES AND METHODS: Here, we examine persistent effects of ACRS with the cannabinoid receptor 1/2 specific agonist WIN55-212,2 (WIN; 1.2 mg/kg/day, postnatal day (PD) 30-43), on natural reward-seeking behaviors and ECB system function in adult male Long Evans rats (PD 60+). RESULTS: WIN ACRS increased palatable food intake, and altered attribution of incentive salience to food cues in a sign-/goal-tracking paradigm. ACRS also blunted hunger-induced sucrose intake, and resulted in increased anandamide and oleoylethanolamide levels in NAc after acute food restriction not seen in controls. ACRS did not affect food neophobia or locomotor response to a novel environment, but did increase preference for exploring a novel environment. CONCLUSIONS: These results demonstrate that ACRS causes long term increases in natural reward-seeking behaviors and ECB system function that persist into adulthood, potentially increasing liability to excessive natural reward seeking later in life. PMID- 29022084 TI - Exposure-response analyses of trastuzumab emtansine in patients with HER2 positive advanced breast cancer previously treated with trastuzumab and a taxane. AB - PURPOSE: In the phase III EMILIA study, trastuzumab emtansine (T-DM1) significantly improved progression-free survival (PFS) and overall survival (OS) versus capecitabine plus lapatinib (control) in previously treated human epidermal growth factor receptor 2-positive advanced breast cancer. Using EMILIA data, we evaluated the T-DM1 exposure-response relationship. METHODS: Exposure response relationships were examined with four exposure metrics [model-predicted and observed minimum concentration (C min) and area under the concentration-time curve from time zero to day 21 of T-DM1 at cycle 1] and multiple efficacy (OS, PFS, objective response rate) and safety (grade >= 3 adverse events, grade >= 3 thrombocytopenia, grade >= 3 hepatotoxicity) endpoints. RESULTS: An apparent exposure-response trend was observed between model-predicted exposure metrics and efficacy; trends for observed exposure metrics were shallower and often not significant. Although median OS and PFS were numerically longer in patients with higher versus lower model-predicted cycle 1 C min, OS and PFS hazard ratios for T DM1-treated patients in the lowest exposure quartile (Q1) versus control were < 1 after adjusting for baseline risk factors (e.g., ECOG status, tumor burden, measurable disease, and number of disease sites). No meaningful exposure-response relationship was observed for any safety endpoints. CONCLUSION: Exposure-response relationships for efficacy were inconsistent across exposure metrics; model predicted cycle 1 C min showed the strongest exposure-response trend. The Q1 subgroup based on model-predicted cycle 1 C min had numerically similar or better OS and PFS versus control following covariate adjustment. The approved T-DM1 dose (3.6 mg/kg every 3 weeks) has a positive benefit-risk ratio versus control, even for the T-DM1 Q1 subgroup. PMID- 29022087 TI - A comparative analysis of tellurite detoxification by members of the genus Shewanella. AB - The increasing industrial utilization of tellurium has resulted in an important environmental pollution with the soluble, extremely toxic oxyanion tellurite. In this context, the use of microorganisms for detoxifying tellurite or tellurium biorecovery has gained great interest. The ability of different Shewanella strains to reduce tellurite to elemental tellurium was assessed; the results showed that the reduction process is dependent on electron transport and the ?pH gradient. While S. baltica OS155 showed the highest tellurite resistance, S. putrefaciens was the most efficient in reducing tellurite. Moreover, pH-dependent tellurite transformation was associated with tellurium precipitation as tellurium dioxide. In summary, this work highlights the high tellurite reduction/detoxification ability exhibited by a number of Shewanella species, which could represent the starting point to develop friendly methods for the recovery of elemental tellurium (or tellurium dioxide). PMID- 29022086 TI - Lesions Responsible for Delayed Oral Transit Time in Post-stroke Dysphagia. AB - INTRODUCTION: Some stroke patients show oral phase dysphagia, characterized by a markedly prolonged oral transit time that hinders oral feeding. The aim of this study was to clarify the clinical characteristics and lesions responsible for delayed swallowing. METHODS: We reviewed 90 patients with stroke. The oral processing time plus the postfaucial aggregation time required to swallow semisolid food was assessed. The patients were divided into two groups according to oral transit time, and we analyzed the differences in characteristics such as demographic factors, lesion factors, and cognitive function. Logistic regression analyses were performed to examine the predictors of delayed oral transit time. Lesion location and volume were measured on brain magnetic resonance images. We generated statistic maps of lesions related to delayed oral phase in swallowing using voxel-based lesion symptom mapping (VLSM). RESULTS: The group of patients who showed delayed oral transit time had significantly low cognitive function. Also, in a regression model, delayed oral phase was predicted with low K-MMSE (Korean version of the Mini Mental Status Exam). Using VLSM, we found the lesion location to be associated with delayed oral phase after adjusting for K-MMSE score. Although these results did not reach statistical significance, they showed the lesion pattern with predominant distribution in the left frontal lobe. CONCLUSION: Delayed oral phase in post-stroke patients was not negligible clinically. Patients' cognitive impairments affect the oral transit time. When adjusting it, we found a trend that the lesion responsible for delayed oral phase was located in the left frontal lobe, though the association did not reach significance. The delay might be related to praxis function. PMID- 29022088 TI - Enhancement of multiple cranial and spinal nerves in vanishing white matter: expanding the differential diagnosis. AB - Abnormal cranial or spinal nerve contrast enhancement on MRI in cases of suspected pediatric leukodystrophy is recognized as an important clue to the diagnosis of either metachromatic leukodystrophy or globoid cell leukodystrophy (Krabbe disease). We report a case of genetically confirmed childhood vanishing white matter with enhancement of multiple cranial and spinal nerves in addition to the more typical intracranial findings. This case expands the limited differential diagnosis of cranial nerve or spinal nerve enhancement in cases of suspected leukodystrophy and may aid in more efficient work-up and earlier diagnosis of vanishing white matter. PMID- 29022089 TI - Quantification of altered tissue turnover in a liquid biopsy: a proposed precision medicine tool to assess chronic inflammation and desmoplasia associated with a pro-cancerous niche and response to immuno-therapeutic anti-tumor modalities. AB - Immuno-therapy has begun to revolutionize cancer treatment. However, despite the significant progress achieved in regard to the duration of clinical benefits, a substantial number of patients do not respond to these therapies. To improve the outcome of patients receiving immuno-therapy, there is a need for novel biomarkers that can predict and monitor treatment. Tumor microenvironment alterations, more specifically the state of chronic inflammation and desmoplasia (tumor fibrosis), are important factors to consider in this context. Here, we discuss the potential for quantification of altered tissue turnover in a liquid biopsy as a proposed precision medicine tool to assess chronic inflammation and desmoplasia in the immuno-oncology (IO) setting. We highlight the need for novel non-invasive biomarkers in IO and the importance of addressing tumor microenvironment alterations. We focus on desmoplasia and extracellular matrix (ECM) remodeling, and how the composition of the ECM defines T-cell permissiveness in the tumor microenvironment and opens up the possibility for associated liquid biopsy biomarkers. Moreover, we address the importance of the assessment of chronic inflammation, primarily macrophage activity, in a liquid biopsy. PMID- 29022090 TI - Radiologic evaluation of patients undergoing the modified Appleby procedure for locally advanced pancreatic neoplasms: a case series. AB - PURPOSE: Despite advances in medical and surgical care, pancreatic ductal adenocarcinoma remains one of the most locally aggressive neoplastic processes in the abdomen. Unfortunately, most pancreatic adenocarcinomas present late and are unresectable at time of diagnosis. The modified Appleby procedure is a surgical option in patients with locally advanced pancreatic neoplasms of the body and tail with vascular invasion of the celiac trunk. To our knowledge, no radiologic journal has previously reported on the pre-operative evaluation or postoperative imaging findings of such patients. METHODS: We report herein three patients who underwent the modified Appleby procedure, each with a unique complication, in an attempt to illustrate common pitfalls of interpretation in these advanced cases. RESULTS: Our case series emphasizes the importance of pre-operative radiologic assessment of variant arterial anatomy, knowledge of pre- and intraoperative procedures and appearances, and familiarity with potential postoperative complications. CONCLUSIONS: Thorough understanding of the important aspects of the pre-surgical anatomy, as well as possible post-surgical complications, is the key to the radiologist being a useful participant in the clinical care of these patients. PMID- 29022091 TI - Maternal high-fat diet and early life stress differentially modulate spine density and dendritic morphology in the medial prefrontal cortex of juvenile and adult rats. AB - The medial prefrontal cortex (mPFC) is a key area for the regulation of numerous brain functions including stress response and cognitive processes. This brain area is also particularly affected by adversity during early life. Using an animal model in rats, we recently demonstrated that maternal exposure to a high fat diet (HFD) prevents maternal separation (MS)-induced gene expression alterations in the developing PFC and attenuates several long-term deleterious behavioral effects of MS. In the present study, we ask whether maternal HFD could protect mPFC neurons of pups exposed to early life stress by examining dendritic morphology and spine density in juvenile [postnatal day (PND) 21] and adult rats submitted to MS. Dams were fed either a control or an HFD throughout gestation and lactation, and pups were submitted to MS from PND2 to PND14. We report that maternal HFD prevents MS-induced spine loss at PND21 and dendritic atrophy at adulthood. Furthermore, we show in adult MS rats that PFC-dependent memory extinction deficits are prevented by maternal HFD. Finally, perinatal HFD exposure reverses gut leakiness following stress in pups and seems to exert an anti-stress effect in dams. Overall, our work demonstrates that maternal HFD affects the developing brain and suggests that nutrition, possibly through gut brain interactions, could modulate mPFC sensitivity to early stress. PMID- 29022092 TI - Unique manifestations of biliary atresia provide new immunological insight into its etiopathogenesis. AB - Biliary atresia (BA) is a unique cholestatic disease of newborns with a background of exaggerated immune response in the liver of unknown mechanism. Three hypotheses have been proposed; autoimmune type of cholangiopathy triggered by virus infection, graft-versus-host disease type of immune-mediated disease associated with maternal microchimerism and ductal plate malformation theory. Researchers on virus infection theory have experimentally explored immune process causing cholangiopathy on murine models of this disease, while in maternal microchimerism hypothesis were detected maternal cells in the BA patients' liver, of which roles are yet to be determined. Ductal plate malformation theory is an intriguing hypothesis in the sense that it suggests the onset of this disease is in the first trimester. This theory can be secondary to either one of these two immune-related insults. In this review, four unique points are focused; (1) the timing of onset, (2) hepatitis-like pathological picture, (3) heterogenous atrophy of the liver segments when advanced, and (4) swollen lymph nodes at the porta hepatis. These unique clinicopahtological aspects of this disease should be well explained by these hypotheses. PMID- 29022093 TI - [Seasonal allergic conjunctivitis]. AB - Seasonal allergic conjunctivitis (SAC) is a frequent disease, which is often associated with allergic rhinitis and subsequently manifested as allergic rhinoconjunctivitis. In contrast to other types of chronic allergic conjunctivitis, the course of SAC is not sight-threatening. Pathogenetically, the underlying cause of SAC is an immunoglobulin E (IgE) mediated, Th2-driven type 1 hypersensitivity reaction. Clinically it presents with itching, light-red conjunctival injection as well as chemosis that exceeds the extent of conjunctival injection. The goals of treatment are relief of acute signs and symptoms, control of the underlying inflammatory process and utilization of preventive options. Dually effective local therapeutics combine the advantages of rapid action with a relatively long-lasting effect by a two-fold active approach. Specific immunotherapy is useful in selected patients. PMID- 29022094 TI - Transcriptomic changes in Echinochloa colona in response to treatment with the herbicide imazamox. AB - MAIN CONCLUSION: Presented here is the first Echinochloa colona leaf transcriptome. Analysis of gene expression before and after herbicide treatment reveals that E. colona mounts a stress response upon exposure to herbicide. Herbicides are the most frequently used means of controlling weeds. For many herbicides, the target site is known; however, it is considerably less clear how plant gene expression changes in response to herbicide exposure. In this study, changes in gene expression in response to herbicide exposure in imazamox sensitive (S) and- resistant (R) junglerice (Echinochloa colona L.) biotypes was examined. As no reference genome is available for this weed, a reference leaf transcriptome was generated. Messenger RNA was isolated from imazamox-treated- and untreated R and S plants and the resulting cDNA libraries were sequenced on an Illumina HiSeq2000. The transcriptome was assembled, annotated, and differential gene expression analysis was performed to identify transcripts that were upregulated or downregulated in response to herbicide exposure for both biotypes. Differentially expressed transcripts included transcription factors, protein-modifying enzymes, and enzymes involved in metabolism and signaling. A literature search revealed that members of the families represented in this analysis were known to be involved in abiotic stress response in other plants, suggesting that imazamox exposure induced a stress response. A time course study examining a subset of transcripts showed that expression peaked within 4-12 h and then returned to untreated levels within 48 h of exposure. Testing of plants from two additional biotypes showed a similar change in gene expression 4 h after herbicide exposure compared to the resistant and sensitive biotypes. This study shows that within 48 h junglerice mounts a stress response to imazamox exposure. PMID- 29022095 TI - Laparoscopic portoenterostomy for biliary atresia: single-center experience and review of literatures. AB - AIM: The aim of this report was to present the laparoscopic portoenterostomy (LapPE) procedure developed by the Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine (JLapPE). We also attempted to obtain an understanding of the current status of laparoscopic portoenterostomy in the world as reported in the English literature to compare with our experience. METHODS: There were 22 BA patients who had JLapPE between 2009 and 2016. BA classification was type III (n = 19) and type II (n = 3). There was 1 case of syndromic BA and 1 case was positive for cytomegalovirus. A systematic search in PubMed of all BA patients treated by LapPE in the English literature was conducted. Jaundice clearance (JC) and survival with the native liver (SNL) were compared. RESULTS: Mean age at JLapPE was 67.1 days (range 29-119). Mean postoperative follow-up was 4.6 years (1.3-8.3). Mean operative time was 514 min (240-662) and mean blood loss was 13.4 g (3-21). Postoperative JC (Total bilirubin <= 1.5 mg/dL) was 77.3% (17/22) at 3 months and 90.9% (20/22) at 6 months. SNL at 6 months of age was 90.9% (20/22); at 1 year of age was 77.3% (17/22), at 2 years of age was 73.7% (14/19); and at 3 years of age was 81.3% (13/16). CONCLUSIONS: Despite recent reports that outcome of LapPE for BA may be unfavorable compared with the conventional open portoenterostomy, our results would suggest that JLapPE can be performed successfully, because it is performed exactingly according to a standard protocol. JLapPE will continue to be our procedure of choice for treating BA. PMID- 29022096 TI - The association between ambient temperature and childhood asthma: a systematic review. AB - The objectives of this study are to review available information on the association between ambient temperature and childhood asthma, and to elucidate the possible underlying mechanisms of this relationship. A systematic review was conducted based on the papers retrieved from four databases, including PubMed, ProQuest, ScienceDirect, and Scopus. Papers examining the association of absolute temperature or temperature variation with childhood asthma published from 1 January 2000 to 31 December 2016 were included. Thirteen papers have quantified the effect of absolute temperature on childhood asthma, and six papers have examined the effect of intra- or inter-day temperature variation on childhood asthma. All studies were conducted in urban areas. Aeroallergen sensitizations were only considered in the analyses of one study. Discrepancy existed in the significance of the relationship between absolute temperature and childhood asthma, and also in the shape of this relationship (i.e. linear or non-linear) and whether temperature effects were lagged. Increasing evidence is suggesting non-linear relationship between absolute temperature and childhood asthma. Future research should investigate the burden of childhood asthma specifically attributable to extreme temperatures and temperature variation using advanced statistical approach, particularly in rural areas, after properly considering aeroallergens and air pollution. Projecting future burden of childhood asthma under climate change scenarios is also warranted. PMID- 29022098 TI - [Urinary incontinence 2017 : Current position]. PMID- 29022097 TI - Prevalence of fibroblast growth factor receptor 1 (FGFR1) amplification in squamous cell carcinomas of the head and neck. AB - BACKGROUND: FGFR1 is a receptor tyrosine kinases involved in tumor growth signaling, survival, and differentiation in many solid cancer types. There is growing evidence that FGFR1 amplification might predict therapy response to FGFR1 inhibitors in squamous cell lung cancers. To estimate the potential applicability of anti FGFR1 therapies in squamous cell carcinomas of the head and neck, we studied patterns of FGFR1 amplification using fluorescence in situ hybridization (FISH). MATERIALS AND METHODS: A tissue microarray was constructed from 453 primary treatment-naive squamous cell carcinomas of the head and neck regions with histopathological and clinical follow-up data [including oral cavity (n = 222), oropharynx (n = 126), and larynx (n = 105)]. FGFR1 and centromere 8 copy numbers were assessed by dual-color FISH. FGFR1 amplification was defined as a copy number ratio FGFR1: centromere 8 >= 2.0. HPV sequencing and p16 immunohistochemistry (IHC) were applied to FGFR1-amplified cancers. RESULTS: FISH analysis was successful in 297 (66%) of the 453 cancers. FGFR1 amplification was found in 6% of analyzable tumors, and was more frequent in tumors of the oral cavity (13/133 amplified, 10%), than cancers of other localizations (1/79 oropharynx, 4/85 larynx; p = 0.007 and 0.159, respectively). One out of 18 FGFR1 amplified cancers was HPV positive. No associations were found between FGFR1 amplification and tumor phenotype or p16 IHC. CONCLUSIONS: Head and neck cancers are recurrently affected by FGFR1 amplification, with a predominance in cancers of the oral cavity. Finding only one HPV positive and FGFR1 amplified cancer argues against a causal relationship between HPV and FGFR1 amplifications. PMID- 29022099 TI - Defibrotide for the treatment of sinusoidal obstruction syndrome: evaluation of response to therapy and patient outcomes. AB - PURPOSE: Defibrotide is an agent used to treat sinusoidal obstruction syndrome (SOS/VOD) in patients undergoing haemopoietic stem cell transplantation. The aim of this study was to evaluate the effectiveness of defibrotide used within institutional guidelines for the treatment of SOS/VOD in patients undergoing haemopoietic stem cell transplantation (HSCT). METHODS: Data for 23 patients was retrospectively reviewed to evaluate the effectiveness of defibrotide and the utility of response criteria to direct therapy as specified within institution guidelines. Patients met institutional criteria for a diagnosis of SOS/VOD based on predominantly Baltimore criteria and received defibrotide. Stabilisation or improvement in symptoms and biochemical markers was required for continuation of therapy with defibrotide. RESULTS: Overall, 14 patients responded to therapy. Survival at day 100 post HSCT was 70%. Median serum (total) bilirubin concentrations in all evaluable patients had decreased at days 5 and 10 (p < 0.001). There was a proportional reduction in median weight of 4% by day 5 and 6.6% by day 10 (p < 0.001). On cessation of defibrotide, there was a decrease in the proportion of patients exhibiting hepatomegaly (p = 0.02), ascites (p < 0.01) and requiring oxygen supplementation (p < 0.01), with 70% survival at day 100 post HSCT. CONCLUSION: Defibrotide to treat SOS/VOD and continued based on attainment of early response was effective management of this condition. Defibrotide should be considered in any consensus protocol providing guidance on the management of SOS/VOD, with future studies considered to assess appropriate time points for response to therapy during treatment. PMID- 29022100 TI - Sea buckthorn decreases and delays insulin response and improves glycaemic profile following a sucrose-containing berry meal: a randomised, controlled, crossover study of Danish sea buckthorn and strawberries in overweight and obese male subjects. AB - PURPOSE: Berries and mixed berry products exert acute effects on postprandial glycaemia and insulinemia, but very few berries have been studied, and primarily in normal weight subjects. Sea buckthorn and strawberry are compositionally widely different berries and may likely produce different responses. The effects of strawberry and sea buckthorn on postprandial glycaemia and insulinemia were examined in overweight or obese male subjects. Subjective appetite sensations and ad libitum intake were also examined. METHODS: The study was conducted as a randomised, controlled, single-blinded, three-way crossover study. Eighteen subjects were studied in three 2-h meal tests followed by a subsequent ad libitum meal. Test meals contained added sucrose and either sea buckthorn, strawberry or no berries with added fructose (control). Blood samples were collected at t = 0, 30, 45, 60, 90 and 120 min. Subjective appetite sensations were recorded at t = 0, 15, 30, 45, 60, 90, 120, and 140 min and subsequent ad libitum intake was recorded. Statistical differences in all continuous measures were evaluated based on the existence of a meal or a time-meal interaction by repeated measures linear model analyses or by differences in AUC by linear mixed models. RESULTS: None of the berries affected postprandial glucose. However, sea buckthorn improved glycaemic profile (44.7%, p < 0.01) compared to control. Sea buckthorn also resulted in a decrease in plasma insulin concentration at 30 min (39.6%, p < 0.01) and at 45 min (16.5%, p < 0.05) compared to control and the maximal increase in plasma insulin was lower following sea buckthorn compared with control (23.6%, p < 0.01). Strawberry did not affect postprandial insulin concentrations compared to control. No differences between control and each of the two berries were observed for any of the appetite parameters, except for desire for something sweet, which was increased following the sea buckthorn meal compared to control. CONCLUSIONS: There was no effect on postprandial glucose response to a sugar challenge given together with purees of strawberry or sea buckthorn. Sea buckthorn decreased and delayed the insulin response and improved glycaemic profile compared with control. Strawberry had no such effects. No important differences were seen for the appetite measures. Sea buckthorn might be useful as a culinary tool for lowering meal insulin response. PMID- 29022101 TI - Microflow imaging: New Doppler technology to detect low-grade inflammation in patients with arthritis. AB - AIM: To assess the efficacy of microvascular imaging in detecting low-grade inflammation in arthritis compared with Power Doppler ultrasound (PDUS). METHOD AND MATERIALS: Patients presenting for ultrasound with arthralgia were assessed with grey-scale, PDUS and Superb Microvascular Imaging (SMI). Videoclips were stored for analysis at a later date. Three musculoskeletal radiologists scored grey-scale changes, signal on PDUS and/or SMI within these joints. If a signal was detected on both PDUS and SMI, the readers graded the conspicuity of vascular signal from the two Doppler techniques using a visual analogue scale. RESULTS: Eighty-three patients were recruited with 134 small joints assessed. Eighty-nine of these demonstrated vascular flow with both PD and SMI, whilst in five no flow was detected. In 40 joints, vascularity was detected with SMI but not with PDUS (p = 0.007). Out of the 89 joints with vascularity on both SMI and PDUS, 23 were rated as being equal; while SMI scored moderately or markedly better in 45 cases (p <0.001). CONCLUSION: SMI is a new Doppler technique that increases conspicuity of Doppler vascularity in symptomatic joints when compared to PDUS. This allows detection of low grade inflammation not visualised with Power Doppler in patients with arthritis. KEY POINTS: * SMI detects vascularity with improved resolution and sensitivity compared to Power Doppler. * SMI can detect low-grade inflammation not seen with Power Doppler. * Earlier detection of active inflammation could have significant impact on treatment paradigms. PMID- 29022102 TI - As if the disease was not enough: coping with the financial consequences of cancer. AB - PURPOSE: The goal of this research was to understand how cancer survivors cope with the financial consequences of their disease. METHODS: Twenty-six cancer survivors who self-identified as having experienced financial hardship related to their disease were interviewed. Transcripts of these interviews were analyzed using constructivist grounded theory approach. An analysis of codes related to coping strategies was conducted, and findings were stratified based on established coping theories (Lazarus and Folkman and Moos and Holahan) previously applied to coping with serious/chronic illnesses. RESULTS: Participants used both person-oriented/emotion-focused and task/problem-focused coping skills to confront the financial consequences of their disease trajectory. Problem-focused skills included dealing with debt, accessing financial assistance, making lifestyle changes, seeking information and education, altering treatment protocols, being proactive, and negotiating insurance. Emotion-focused tasks included using personal strengths, expressing emotion, accessing social support, being determined, and taking care of oneself. Results were further analyzed using Moos and Holahan's framework of coping skills; examples of each of these coping skills were identified in the interview data. CONCLUSIONS: Facing serious financial ramifications due to a cancer diagnosis calls forth coping skills and tasks that can be categorized using coping theories traditionally applied to coping with the illness itself. Cancer patients are often confronted with dual threats: the physical and emotional impact of the illness and the loss of financial security and the lifestyle that they have worked to maintain. Interventions with cancer survivors should include facilitating effective coping with the financial implications of the disease. PMID- 29022104 TI - Deriving and understanding the risk of post-transplant recurrence of nephrotic syndrome in the light of current molecular and genetic advances. AB - After renal transplantation, recurrence of the original disease is the second most common cause of graft loss, after rejection. The most dramatic manifestation of this phenomenon is in patients with nephrotic syndrome (NS). NS is a descriptive term describing a clinical picture centred on proteinuria arising from damage to the glomerular filtration barrier (GFB). There are many different drivers of that damage, ranging from immune dysregulation to genetic disorders and chronic disease/infections. The main categories in childhood are "idiopathic" (presumed immune mediated) and genetic NS, with further stratification of the idiopathic group according to steroid responses. A significant proportion of patients with NS progress to established renal failure, requiring transplantation, and one of the most difficult clinical scenarios faced by nephrologists is the recurrence of the original disease in up to 50% of patients, usually rapidly post-transplant. This is thought to be the archetypal "circulating factor" disease, in which as yet unknown circulating plasma "factor(s)" in the recipient target the donor kidney. The ability to predict in advance which patients will suffer recurrence would enhance our ability to counsel patients and families, and potentially identify those patients before transplant for tailored immunosuppressive preparation. Until very recently, stratification based on clinical categorisations has been poor in being able to predict those patients in whom disease will recur, and laboratory biomarkers are yet to be adequately refined. However, by mapping our growing understanding of disease mechanisms to clinical phenotypes, and with greatly improved genetic diagnostics, we have made progress in being able to stratify patients more specifically, and allow better predictive algorithms to be developed. Using our knowledge of podocyte biology, circulating factor-induced specific biomarkers are also being tested. This review is aimed at outlining those advances, and suggesting how we can move further forward in both clinical and biological markers of disease type. PMID- 29022105 TI - Structural and electronic study of iron-based dye sensitizers for solar cells using DFT/TDDFT. AB - Ruthenium-based molecules have proven their efficiency as photosensitizers in dye sensitized solar cells. However, due to the high cost and scarcity of this noble metal, in this work we investigated the effects of replacing the ruthenium in photosensitizers with iron because it is less expensive and more abundant. DFT and TD-DFT methods were used to explore the resulting systems. The B3LYP functional was employed to compute the ground-state geometries and the frontier molecular orbitals for four complexes of general formula M(Rbpy)2S2N2C2 (M = Ru or Fe; R = COOH or COOEt). We also used TD-M06 to investigate the electronic properties and to simulate the absorption spectra of these Ru-based and Fe-based complexes. Finally, CPCM was applied to explore the effect of DMF solvent. The HOMOs of these Ru-based and Fe-based molecules were found to have metal d orbital and pi(S2C2N2) orbital character, while their LUMOs had pi*(R-bpy) orbital character. In addition, values of the light-harvesting efficiency (LHE), open circuit voltage (V oc), and driving force (?G inject) were calculated for the Ru based and Fe-based molecules. According to our results, the maximum absorbance, the LHE, V oc, and ?G inject values for complexes 2 and 4 (Fe-based dyes) are very close to those of complexes 1 and 3 (Ru-based dyes). Thus, our studies indicate that the Ru in photosensitizers can be replaced with the much less expensive metal Fe, as the resulting Fe-based dyes appear to be promising candidates for use in solar cells. PMID- 29022106 TI - Minimally Invasive Adrenalectomy for Adrenocortical Carcinoma: Five-Year Trends and Predictors of Conversion. AB - BACKGROUND: Adrenocortical carcinoma (ACC) is rare but often fatal. Surgery offers the only chance of cure. As minimally invasive (MI) procedures for cancer become common, their role for ACC is still debated. We reviewed usage of MI approaches for ACC over time and risk factors for conversion using a large national database. METHODS: ACC patients with localized disease were identified in the National Cancer Data Base from 2010 to 2014. A retrospective review examined trends in the surgical approach over time. Patient demographics, surgical approach, and tumor characteristics between MI, open, and converted procedures were compared. RESULTS: 588 patients underwent adrenalectomy for ACC, of which 200 were minimally invasive. From 2010 to 2014, MI operations increased from 26 to 44% with robotic procedures increasing from 5 to 16%. The use of MI operations compared to open was not different based on facility type (p = 0.40) or location (p = 0.63). MI tumors were more likely to be confined to the adrenal (p < 0.001) but final margin status was not different (p = 0.56). Conversion was performed in 38/200 (19%). Average tumor size was 10.2 cm in the converted group compared to 8.6 cm in the MI group (p = 0.09). There was no difference in extent of disease (p = 0.33), margin status (p = 0.12), or lymphovascular invasion (p = 0.59) between MI and converted procedures. Tumor size > 5 cm was the only significant predictor of conversion (p = 0.04). No patients with pathologic stage I disease required conversion (0/19). CONCLUSIONS: The frequency of MI approaches for ACC is increasing. In the final year of the study, 44% of adrenalectomies were MI. Size > 5 cm was the only significant predictor of conversion. PMID- 29022103 TI - Antidiabetic plant-derived nutraceuticals: a critical review. AB - Diabetes mellitus (DM) is one of the major health problems in the world, especially amongst the urban population. Chemically synthesized drugs used to decrease the ill effects of DM and its secondary complications cause adverse side effects, viz., weight gain, gastrointestinal disturbances, and heart failure. Currently, various other approaches, viz., diet control, physical exercise and use of antidiabetic plant-derived molecules/foods are advocated to manage DM, as they are economical with fewer or no side effects. This review mainly focuses on antidiabetic plants, chemically characterized plant molecules and plant-based foods in the treatment of DM. Very little science-based evidence is available on the mechanism of action of plant-derived food molecules on the DM targets. Critical DM targets include alpha-amylase, alpha-glucosidase, DPP-IV, aldose reductase, PPAR-gamma, AMP kinase and GLUT4. In-depth studies carried out on a few of those targets with specific mechanisms of action are addressed in this review. This review may help future researchers in identifying a right plant molecule to treat DM or to develop food formulations for DM management. PMID- 29022107 TI - Preoperative laryngotracheobronchoscopy in infants with esophageal atresia: why is it not routine? AB - The value of laryngotracheobronchoscopy (LTB) immediately prior to repair of esophageal atresia with or without tracheo-esophageal fistula is contentious. Currently, there is a wide range of opinion on the utility of this investigation which is reflected by huge variation in clinical practice. This review is a critical analysis of the arguments for and against performing routine LTB prior to esophageal atresia repair. Reserving LTB for selected cases only is potentially disadvantageous since it limits the surgeon's and anesthetist's familiarity with the procedure, equipment, and range of potential findings. There is sufficient evidence to suggest that routine preoperative LTB becomes the standard of care. PMID- 29022108 TI - Middle cranial fossa approach for the repair of superior semicircular canal dehiscence is associated with greater symptom resolution compared to transmastoid approach. AB - BACKGROUND: Superior semicircular canal dehiscence (SSCD) is a disorder of the skull base that is gaining increasing recognition among neurosurgeons. Traditionally, the middle cranial fossa (MCF) approach has been used for the surgical repair of SSCD. However, the transmastoid (TM) approach is an alternative strategy that has demonstrated promising results. METHODS: We performed independent searches of a popular database to identify studies that described outcomes following the surgical repair of SSCD through MCF and TM approaches. The primary outcome was symptom resolution. RESULTS: Our analysis included 24 studies that described 230 patients that underwent either an MCF (n = 148, 64%) approach or a TM (n = 82, 36%) approach for primary surgical repair of SSCD. A greater percentage of patients in the MCF group experienced resolution of auditory symptoms (72% vs 59%, p = 0.012), aural fullness (83% vs 55%, p = 0.049), hearing loss (57% vs 31%, p = 0.026), and disequilibrium (75% vs 44%, p = 0.001) when compared to the TM group. The MCF approach was also associated with higher odds of symptom resolution for auditory symptoms (odds ratio [OR] 1.79, 95% confidence interval [CI] 1.14-2.82), aural fullness (OR 4.02, 95% CI 1.04 15.53), hearing loss (OR 2.91, 95% CI 1.14-7.42), and disequilibrium (OR 3.94, 95% CI 1.78-8.73). The mean follow-up was 9 months. CONCLUSIONS: The literature suggests that the MCF approach for the repair of SSCD is associated with greater symptom resolution when compared to the TM approach. This information could help facilitate patient discussions. PMID- 29022110 TI - Monitoring Bone Tissue Engineered (BTE) Constructs Based on the Shifting Metabolism of Differentiating Stem Cells. AB - Ever-increasing demand for bone grafts necessitates the realization of clinical implementation of bone tissue engineered constructs. The predominant hurdle to implementation remains to be securing FDA approval, based on the lack of viable methods for the rigorous monitoring of said constructs. The study presented herein details a method for such monitoring based on the shifting metabolism of mesenchymal stem cells (MSCs) as they differentiate into osteoblasts. To that end, rat MSCs seeded on 85% porous spunbonded poly(L-lactic acid) scaffolds were cultured in flow perfusion bioreactors with baseline or osteoinductive media, and levels of key physio-metabolic markers (oxygen, glucose, osteoprotegerin, and osteocalcin) were monitored throughout culture. Comparison of these non destructively obtained values and current standard destructive analyses demonstrated key trends useful for the concurrent real-time monitoring of construct cellularity and maturation. Principle among these is the elucidation of the ratio of the rates of oxygen uptake to glucose consumption as a powerful quality marker. This ratio, supported on a physiological basis, has been shown herein to be reliable in the determination of both construct maturation (defined as osteoblastic differentiation and accompanying mineralization) and construct cellularity. Supplementary monitoring of OPG and OCN are shown to provide further validation of such metrics. PMID- 29022111 TI - A novel strain of porcine deltacoronavirus in Vietnam. AB - Two porcine deltacoronavirus (PDCoV) strains (Binh21 and HaNoi6) were isolated from two pig farms in North Vietnam. Phylogenetic analysis of the complete genomes and the Spike and Membrane genes revealed that the two Vietnam PDCoVs belong to the same lineage as PDCoVs from Thailand and Laos; however, the N genes belonged to the same lineage as PDCoVs from the USA, Korea, China, and Hong Kong. The recombination detection program subsequently identified the major parent (S5011 strain) and minor parent (HKU15-44 strain) of the two Vietnam PDCoV strains (p < 0.01). PMID- 29022109 TI - Interaction of CD80 with Neph1: a potential mechanism of podocyte injury. AB - BACKGROUND: The induction of CD80 on podocytes has been shown in animal models of podocyte injury and in certain cases of nephrotic syndrome. In a lipopolysaccharide (LPS)-induced mouse model of albuminuria, we have recently shown a signalling axis of LPS-myeloid cell activation-TNFalpha production podocyte CD80 induction-albuminuria. Therefore, in this report, we investigated the cellular and molecular consequences of TNFalpha addition and CD80 expression on cultured podocytes. METHODS: A murine podocyte cell line was used for TNFalpha treatment and for over-expressing CD80. Expression and localization of various podocyte proteins was analysed by reverse transcriptase-polymerase chain reaction, western blotting and immunofluorescence. HEK293 cells were used to biochemically characterize interactions. RESULTS: Podocytes treated with LPS in vitro did not cause CD80 upregulation but TNFalpha treatment was associated with an increase in CD80 levels, actin derangement and poor wound healing. Podocytes stably expressing CD80 showed actin derangement and co-localization with Neph1. CD80 and Neph1 interaction was confirmed by pull down assays of CD80 and Neph1 transfected in HEK293 cells. CONCLUSION: Addition of TNFalpha to podocytes causes CD80 upregulation, actin reorganization and podocyte injury. Overexpressed CD80 and Neph1 interact via their extracellular domain. This interaction implies a mechanism of slit diaphragm disruption and possible use of small molecules that disrupt CD80-Neph1 interaction as a potential for treatment of nephrotic syndrome associated with CD80 upregulation. PMID- 29022112 TI - The use of zonal analysis of peripapillary choroidal thickness in primary open angle glaucoma. AB - PURPOSE: To evaluate automatic peripapillary choroidal thickness (PPCT) measurements in a wide area around the optic disc and various established zones in primary open-angle glaucoma (POAG) patients and age- and sex-matched healthy controls using a new swept-source optical coherence tomography (SS-OCT) device. STUDY DESIGN: Single center cross-sectional observational study. METHODS: A total of 135 POAG patients and 86 healthy subjects were consecutively enrolled. An optic disc 6.0 * 6.0 mm three-dimensional scan OD was obtained using the SS-OCT Triton. A 26 * 26 cube-grid centered in the optic disc was generated to automatically measure choroidal thickness. Seven choroidal zones were established (superior temporal, central, and nasal; inferior temporal, central, and nasal, and the optic nerve head) and compared between healthy controls and POAG patients. RESULTS: PPCT was significantly thinner in the central superior, nasal superior, and nasal inferior zones of the POAG subjects. Choroidal thickness in the central superior zone was 124.61 +/- 54.95 um in POAG group vs 156.17 +/- 80.89 um in healthy controls (p = 0.029); in the nasal superior zone, 133.84 +/- 58.89 um in the POAG group vs 168.34 +/- 73.45 um in healthy controls (p = 0.012); and in the nasal inferior zone, 113.45 +/- 49.93 um in the POAG group vs 137.47 +/- 65.96 um in healthy controls (p = 0.049). CONCLUSION: Compared with healthy subjects, glaucoma patients present with peripapillary choroidal thinning, especially in the central superior, nasal superior, and nasal inferior zones. The new SS-OCT could be a useful tool to evaluate choroidal thinning, and it could be an additional support to facilitate glaucoma diagnosis. PMID- 29022115 TI - Core curriculum illustration: epiploic appendagitis. AB - This is the 45th 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- 29022114 TI - Implantable Systems for Stress Urinary Incontinence. AB - Stress urinary incontinence (SUI), the involuntary urine leakage due to failure of the urethral closure mechanism, is a global health challenge with substantial human suffering and socioeconomic costs. Approximately 167 million male and female patients are predicted to suffer from SUI in 2018, worldwide. A wide range of surgical interventions are available for the treatment of SUI. Severe cases, however, usually require the implantation of artificial urinary sphincter devices. This review comparatively presents and analyzes the working principles, as well as the challenges, associated with the current implantable SUI systems in clinical use. These include slings, urethral bulking agents, artificial urinary sphincters, and adjustable continence devices. It further reports on recent research progress and state-of-the-art in the field of SUI implants, including an original approach proposed by the authors with a pressure feedback sensory mechanism. The new emerging field of artificial muscle devices, including electroactive polymers, provides a promising innovative solution for replacing the weakened urethral sphincter in SUI patients. PMID- 29022113 TI - A Significant Association of Malnutrition with Dysphagia in Acute Patients. AB - Dysphagia and malnutrition seem to be associated, but little research in detail has been reported. We aimed to clarify the association between dysphagia and malnutrition by adopting accurate diagnosis and mathematical evaluation of dysphagia using videofluorography and nutritional assessment calculated by a well established nutritional risk index. We conducted a retrospective analysis of 165 enrolled patients who were admitted to our hospital for acute diseases and underwent videofluorography on suspicion of dysphagia in the year 2016. We diagnosed high-risk dysphagia in patients with 8-point penetration-aspiration scale (PAS) score over 4. We used the geriatric nutritional risk index (GNRI) as a nutritional assessment tool. A GNRI score less than 91.2 corresponds to malnutrition. The median age of 165 enrolled patients was 76.0, and the number of female patients was 53. The mean GNRI was 81.2, and 134 patients (81.2%) had malnutrition. The number of the patients with a diagnosis of high-risk dysphagia was 54 (32.7%). The GNRI of patients with high-risk dysphagia was significantly less than that of patients without (mean value 77.7 +/- 10.5 vs. 83.0 +/- 10.5, P = 0.003). GNRI < 91.2 was independently and significantly associated with high risk dysphagia (OR 3.094; CI 1.057-9.058; P = 0.039). Based on the current study, the authors propose evaluating nutritional status to predict dysphagia risk of patients in the acute phase. PMID- 29022117 TI - Wastewater reuse in the countries of the Gulf Cooperation Council (GCC): the lost opportunity. AB - Reuse of treated wastewater is not only environmentally and financially sound, it is becoming indispensable for meeting the staggering water demand in certain regions, especially under conditions of alarming water scarcity. Reusing treated wastewater will help in reducing the pressure on expensive desalinated water production and depleting groundwater withdrawal, thereby reducing associated harmful environmental impacts. Reuse of wastewater in general and in the countries of the Gulf Cooperation Council (GCC) in particular has been a priority research area and has been in the media spotlight for some time, especially the use of tertiary quality water resources for agricultural purposes. However, reuse of treated wastewater is still in its primitive stage in terms of implementation in GCC. In addition, the overall volume of tertiary treated water that outflows unutilized to the sea is much greater than the volume reused. This paper provides a general review of and statistics on current practices of treatment of domestic wastewater in the GCC. The review highlights water resources, sanitation service coverage, wastewater treatment, effluent types, treated and reuse quantities, costs, and tariffs. The paper provides recommendations to improve wastewater treatment in the GCC to alleviate the stress on the scarce groundwater resources, provide a relatively inexpensive alternative to desalination, reduce the environmentally adverse impacts and externalities of desalination plants, and eliminate the discharge of untreated wastewater in coastal areas or terrestrial landfills. PMID- 29022116 TI - Two-Dimensional Temporal Clustering Analysis for Patients with Epilepsy: Detecting Epilepsy-Related Information in EEG-fMRI Concordant, Discordant and Spike-Less Patients. AB - EEG acquired simultaneously with fMRI (EEG-fMRI) is a multimodal method that has shown promise in mapping the seizure onset zone in patients with focal epilepsy. However, there are many instances when this method is unsuccessful or not applicable, and other data driven fMRI methods may be utilized. One such method is the two-dimensional temporal clustering analysis (2dTCA). In this study we compared the classic EEG-fMRI and 2dTCA performance in mapping regions related to the seizure onset region in 18 focal epilepsy patients (12 presenting interictal epileptiform discharges (IEDs), during EEG-fMRI acquisition) with Engel I or II surgical outcome. Activation maps of both 2dTCA timing outputs (positive and negative histograms) and EEG detected IEDs were computed and compared to the region of epilepsy surgical resection. Patients were evaluated in three categories based on frequency of EEG detected spiking during the MRI. EEG-fMRI maps were concordant to the epilepsy region in 5/12 subjects, four with frequent IEDs on EEG. The 2dTCA was successful in mapping 13/18 patients including 3/6 with no IEDs detected (10/12 with IEDs detected). The epilepsy-related activities were successfully mapped by both methods in only 4/12 patients. This work suggests that the epilepsy-related information detected by each method may be different: while EEG-fMRI is more accurate in patients with high rather than lower numbers of EEG detected IEDs; 2dTCA can be useful in evaluating patients even when no concurrent EEG spikes are detected or EEG-fMRI is not effective. Therefore, our results support that 2dTCA might be an alternative for mapping epilepsy-related BOLD activity in negative EEG-fMRI (6/7 patients) and spike-less patients. PMID- 29022118 TI - Serological and molecular investigation of 2117-like vesiviruses in cats. AB - Vesivirus 2117 was first discovered as a contaminant in Chinese hamster ovary (CHO) cell cultures used for human drug production. Similar vesiviruses (VeVs) have been detected recently in dogs. In order to address the hypothesis that cats may also be exposed to 2117-like VeVs, in this study, we screened 236 feline sera using an enzyme-linked immunosorbent assay (ELISA) based on a recombinant VP1 protein from the canine VeV Bari/212/07/ITA. IgG antibodies against the 2117-like VeV were detected in 37.3% of the sera tested. Also, by screening cat faecal specimens, the RNA of a 2117-like VeV was detected in a clinically healthy cat. PMID- 29022119 TI - Sex-specific cognitive-behavioural profiles emerging from individual variation in numerosity discrimination in Gambusia affinis. AB - The relationship between an individual's cognitive abilities and other behavioural attributes is complex, yet critical to understanding how individual differences in cognition arise. Here we use western mosquitofish, Gambusia affinis, to investigate the relationship between individual associative learning performance in numerical discrimination tests and independent measures of activity, exploration, anxiety and sociability. We found extensive and highly repeatable inter-individual variation in learning performance (r = 0.89; ICC = 0.89). Males and females exhibited similar learning performance, yet differed in sociability, activity and their relationship between learning and anxiety/exploration tendencies. Sex-specific multivariate behaviour scores successfully predicted variation in individual learning performance, whereas combined sex analyses did not. Female multivariate behaviour scores significantly predict learning performance across females (rho = 0.80, p = 0.005) with high performing female learners differentiated from female non-learners and low performing learners by significant contributions of activity and sociability measures. Meanwhile, males of different learning performance levels (high-, low- and non-learners) were distinguished from each other by unique behavioural loadings of sociability, activity and anxiety/exploration scores, respectively. Our data suggest that despite convergence on learning performance, the sexes diverge in cognitive-behavioural relationships that are likely products of different sexual selection pressures. PMID- 29022121 TI - Derivation and Validation of a Novel Physiological Emergency Surgery Acuity Score. PMID- 29022120 TI - Experience-based utility and own health state valuation for a health state classification system: why and how to do it. AB - In the estimation of population value sets for health state classification systems such as the EuroQOL five dimensions questionnaire (EQ-5D), there is increasing interest in asking respondents to value their own health state, sometimes referred to as "experience-based utility values" or, more correctly, own rather than hypothetical health states. Own health state values differ to hypothetical health state values, and this may be attributable to many reasons. This paper critically examines whose values matter; why there is a difference between own and hypothetical values; how to measure own health state values; and why to use own health state values. Finally, the paper examines other ways that own health state values can be taken into account, such as including the use of informed general population preferences that may better take into account experience-based values. PMID- 29022122 TI - Association of interferon lambda polymorphisms with elevated baseline viral loads in chronic hepatitis C virus genotype 6 infection. AB - Globally, hepatitis C virus (HCV) is one of the major causes of hepatocellular carcinoma and liver cirrhosis. For clinical decision making, genetic variation in the interferon-lambda (IFNL) cluster has been utilised as a baseline predictor of natural and interferon-based treatment-induced viral clearance. In Vietnam, where HCV genotypes 1 (g1) and g6 predominate, no prior studies have been conducted investigating associations of IFNL3/4 polymorphisms with spontaneous clearance (SC) or HCV viral load (VL) in chronic infection. In this study, we have investigated the host genetic variations in IFNL loci to determine the association of IFNL3/4 polymorphisms with HCV SC and baseline VLs in a Vietnamese HCV-seropositive cohort. The majority of the cohort harboured major homozygous polymorphisms in IFNL3/4 cluster (i.e. rs12979860-CC: 82.7%; rs8099917-TT: 84.8% and rs368234815-TT/TT: 85.5%) and the SC rates in these groups were 15.8%, 16.3% and 15.7%, respectively. In the minor allele groups, the resolution rates were lower (12% in rs12979860 non-CC, 9.1% in rs8099917 non-TT and 9.5% in rs368234815 non-TT/TT). Furthermore, in individuals harbouring minor alleles, females achieved higher SC rates than males. HCV g6-infected rs12979860 major homozygous individuals had significantly higher viral loads than individuals with minor alleles (CC: 6.56 log IU/ml vs. non-CC: 5.66 log IU/ml; P = 0.021). The association between IFNL3/4 genotypes with elevated HCV VL observed in HCV g6 infected individuals may have implications for the progression of liver disease in Southeast Asian countries where this viral genotype predominates and therefore warrants further studies. PMID- 29022123 TI - Assessment of a closed wash system developed for processing living donor femoral heads. AB - NHS Blood and Transplant Tissue and Eye Services (TES) and Scottish National Blood Transfusion Services Tissues and Cells Directorate (TCD) currently bank whole, frozen femoral head bone from living donors who are undergoing primary hip replacement surgery. When required, the bone is issued to a surgeon still frozen on dry ice (- 79 degrees C). Consequently, the femoral head bone is not processed, is not sterilised and at the time of issue, it contains donor blood, bone marrow and associated cells. We have previously shown that, cut, shaped and washed bone from deceased donors can be processed to remove up to 99.9% of blood, bone marrow and associated cells (Eagle et al. 2015). However, cut and shaped bone is not suitable for some orthopaedic procedures and some orthopaedic surgeons do not wish to use irradiated bone; therefore in this report, a method has been developed in which whole femoral heads can be washed to remove donor blood and bone marrow components. Processing results in excess of 99% bone marrow component removal-soluble protein, haemoglobin and DNA; the procedure is performed inside a closed system, thereby eliminating the need for terminal sterilisation by irradiation. In addition, uniaxial testing demonstrated no difference in compressive strength between washed and unwashed bone. We suggest that this washed bone may be capable of improving incorporation after grafting without disturbing biomechanical properties of the graft. PMID- 29022124 TI - Faster photosynthetic induction in tobacco by expressing cyanobacterial flavodiiron proteins in chloroplasts. AB - Plants grown in the field experience sharp changes in irradiation due to shading effects caused by clouds, other leaves, etc. The excess of absorbed light energy is dissipated by a number of mechanisms including cyclic electron transport, photorespiration, and Mehler-type reactions. This protection is essential for survival but decreases photosynthetic efficiency. All phototrophs except angiosperms harbor flavodiiron proteins (Flvs) which relieve the excess of excitation energy on the photosynthetic electron transport chain by reducing oxygen directly to water. Introduction of cyanobacterial Flv1/Flv3 in tobacco chloroplasts resulted in transgenic plants that showed similar photosynthetic performance under steady-state illumination, but displayed faster recovery of various photosynthetic parameters, including electron transport and non photochemical quenching during dark-light transitions. They also kept the electron transport chain in a more oxidized state and enhanced the proton motive force of dark-adapted leaves. The results indicate that, by acting as electron sinks during light transitions, Flvs contribute to increase photosynthesis protection and efficiency under changing environmental conditions as those found by plants in the field. PMID- 29022125 TI - Parent Stress in a Randomized Clinical Trial of Atomoxetine and Parent Training for Children with Autism Spectrum Disorder. AB - We previously reported a 2 * 2 randomized clinical trial of atomoxetine (ATX) and parent training (PT) for attention deficit hyperactivity disorder (ADHD) symptoms and behavioral noncompliance in 128 children with autism spectrum disorder, ages 5-14 years. Children were randomized to one of four conditions: ATX alone, placebo alone, ATX + PT, or PT + placebo. Both ATX and PT improved some indices of ADHD and behavioral compliance. In this report, we describe parent stress over time and across conditions. All four treatments improved parent self-rated stress from baseline to week 10. However, there were no statistically significant differences between treatment groups. Significantly more improvement in parent stress scores was observed for clinical responders than non-responders. ClinicalTrials.gov Title: Atomoxetine, Placebo and Parent Management Training in Autism (Strattera) ClinicalTrials.gov Identifier: NCT00844753. PMID- 29022126 TI - A systematic review of cortisol, thyroid-stimulating hormone, and prolactin in peripartum women with major depression. AB - Pregnancy and postpartum are periods of high susceptibility to major depression (MD) and other mood disorders. The peripartum period is also a time of considerable changes in the levels of hormones, including cortisol, thyroid stimulating hormone (TSH), prolactin, gonadotropins, and gonadal steroids. To investigate the relationship between mood and hormonal changes during and after pregnancy, we reviewed published reports of hormonal measures during this time frame, searched via PubMed and Web of Science. Studies were included if women in the antepartum or postpartum periods were clinically diagnosed with MD, and if there were repeated measures of cortisol, TSH, or prolactin. For these three hormones, the numbers of human studies that met these criteria were 15, 7, and 3, respectively. Convergent findings suggest that morning cortisol is reduced in pregnant and postpartum women with MD. Evidence did not support changes in TSH as a marker of MD during the peripartum period, and evidence for changes in prolactin in peripartum MD was equivocal. Aside from reduced morning cortisol in peripartum women with MD, definitive evidence for an association between specific hormonal fluctuations and mood disorders in the peripartum period remains elusive. PMID- 29022128 TI - Endodontic infections increase leukocyte and lymphocyte levels in the blood. AB - OBJECTIVES: The aim of this study was to determine whether the presence of single or multiple apical periodontitis (AP) alters blood cell counts and cytokine production. MATERIAL AND METHODS: Thirty rats were divided into three groups: a control group comprising rats without AP, a group called 1AP comprising rats with AP in one tooth, and a group called 4AP comprising rats with AP in four teeth. Endodontic infection was induced by pulp exposure of the first right maxillary molar in the 1AP group or by exposing the first and second right maxillary and mandibular molars in the 4AP group. A blood count and cytokine levels were obtained 30 days after infection by collecting blood by cardiac puncture. The maxillae were dissected and stained with hematoxylin and eosin to evaluate the inflammatory infiltrate. The data were tabulated and subjected to statistical analysis (P < 0.05). RESULTS: Histological analysis showed a predominance of mononuclear inflammatory cells. In blood, significant increase of leukocytes, lymphocytes, and tumor necrosis factor alpha (TNF-alpha) in 4AP compared with the control and 1AP groups (P < 0.05) was observed. In addition, significant decrease of interleukin-4 (IL-4) in 1AP and 4AP groups compared with the control was observed (P < 0.05). CONCLUSIONS: In the rat model, the presence of multiple AP can affect health by increasing lymphocyte and TNF-alpha levels in the blood. CLINICAL RELEVANCE: The presence of endodontic infections can interfere with the blood profile, altering systemic health. PMID- 29022127 TI - Genetic influence on femoral plaque and its relationship with carotid plaque: an international twin study. AB - To disentangle genetic and environmental influences on the development of femoral plaques using a population of adult twins. To evaluate the potential role of shared genetic and environmental factors in the co-occurrence of femoral and carotid plaques. The sample included 566 twins belonging to 164 monozygotic (MZ) and 119 dizygotic (DZ) twin pairs, who underwent peripheral arterial assessment by B-mode ultrasound in different centers. The variance in femoral plaques onset was due to genetic factors and the remaining 50% was explained by common (15%) and unique (35%) environmental factors. Findings on sidedness and number of femoral plaques indicated that also these traits were mainly under genetic control. No effect of common environment was found on plaques composition, and variability of this trait was explained by genetics (64%) and unique environment (36%). Covariation between the liabilities to carotid and femoral plaques was mainly attributed to shared genes (77%), with the remaining 23% explained by individual-specific environmental factors shared by the two districts. Inter individual differences in plaque onset as well as in their number, sidedness and composition are mainly genetic in origin. The results on the cooccurrence of carotid and femoral plaque underline the genetic role in atherogenesis. PMID- 29022129 TI - The Utility of Local Anesthesia for Neurosurgical Interventions in a Low-Resource Setting: A Case Series. AB - INTRODUCTION: Trauma is a major contributor to global morbidity and mortality, and injury to the central nervous system is the most common cause of death in these patients. While the provision of surgical services is being recognized as essential to global public health efforts, specialty areas such as neurosurgery remain overlooked. METHOD: This is a retrospective case review of patients with operable lesions, such as extra-axial hematomas and unstable depressed skull fractures that underwent neurosurgical interventions under local anesthesia. RESULTS: A total of 13 patients underwent neurosurgical intervention under local anesthesia. Two and three patients with burr hole decompression of epidural and subdural hematomas, respectively; seven patients had elevation of depressed skull fractures and lastly one patient had an aspiration of a brain abscess. All patients survived with and without residual neurological deficits. CONCLUSION: Access to resources and staff required to deliver general anesthesia is challenging in resource-poor settings. We have therefore begun performing emergent interventions under local anesthesia, with or without conscious sedation. While some patients had some minor residual weakness after the procedure, the degree of neurological deficit was improved from that observed before the procedure in all patients. PMID- 29022130 TI - COMPASS for Hope: Evaluating the Effectiveness of a Parent Training and Support Program for Children with ASD. AB - Despite the growing number of studies that demonstrate the importance of empowering parents with knowledge and skills to act as intervention agents for their children with autism spectrum disorder (ASD), there are limited examples of parent-mediated interventions that focus on problem behaviors. Additionally, access to ASD-trained clinicians and research supported delivery options for families in rural areas is severely limited. COMPASS for Hope (C-HOPE) is an 8 week parent intervention program that was developed with the option of telehealth or face-to-face delivery. Parents who received C-HOPE intervention reported a reduction in parenting stress and an increase in competence. Parents also reported significant reductions in child behavior problems, both when compared to pre-intervention levels and to a waitlist control condition. PMID- 29022132 TI - An exploratory study of the electronic medical record and outpatient vascular neurology consultations. AB - We carried out a quality improvement project utilizing the electronic medical record (EMR) to determine (1) the quality of vascular neurologists' recommendations for recurrent stroke prevention and (2) primary care provider (PCP) acknowledgement of the vascular neurologists' recurrent stroke prevention recommendations and their frequency of meeting the recommended metrics for risk factor control and lifestyle modification. We conducted a retrospective EMR chart review on a convenience sample of ischemic stroke patients during two epochs. Data collected included risk factors, stroke subtype, and process and outcome guidance metrics for recurrent ischemic stroke prevention according to American Heart Association/American Stroke Association (AHA/ASA) recommendations. Overall, vascular neurologists commonly recommended appropriate AHA/ASA risk factor management standards, but were less likely to do so for lifestyle management. Improvements in the EMR system over time, including the establishment of guideline-driven importable recurrent stroke prevention templates, led to a high frequency of proper risk factor and lifestyle recommendations made by vascular neurologists. Statistical analysis provided further evidence that the EMR positively influenced the delivery of proper recurrent stroke prevention guidance. Although PCPs infrequently acknowledged receipt of vascular neurology consultations, there was a relatively high frequency of achieved risk factor control. The latter may be attributed at least in part to pre-existent quality improvement programs implemented at primary care offices. Our exploratory findings suggest that proper use of the EMR may heighten efforts to provide appropriate and consistent recurrent stroke prevention recommendations in a primary care setting. PMID- 29022131 TI - Feedback regulation of ribosome assembly. AB - Ribosome biogenesis is a crucial process for growth and constitutes the major consumer of cellular resources. This pathway is subjected to very stringent regulation to ensure correct ribosome manufacture with a wide variety of environmental and metabolic changes, and intracellular insults. Here we summarise our current knowledge on the regulation of ribosome biogenesis in Saccharomyces cerevisiae by particularly focusing on the feedback mechanisms that maintain ribosome homeostasis. Ribosome biogenesis in yeast is controlled mainly at the level of the production of both pre-rRNAs and ribosomal proteins through the transcriptional and post-transcriptional control of the TORC1 and protein kinase A signalling pathways. Pre-rRNA processing can occur before or after the 35S pre rRNA transcript is completed; the switch between these two alternatives is regulated by growth conditions. The expression of both ribosomal proteins and the large family of transacting factors involved in ribosome biogenesis is co regulated. Recently, it has been shown that the synthesis of rRNA and ribosomal proteins, but not of trans-factors, is coupled. Thus the so-called CURI complex sequesters specific transcription factor Ifh1 to repress ribosomal protein genes when rRNA transcription is impaired. We recently found that an analogue system should operate to control the expression of transacting factor genes in response to actual ribosome assembly performance. Regulation of ribosome biogenesis manages situations of imbalanced ribosome production or misassembled ribosomal precursors and subunits, which have been closely linked to distinct human diseases. PMID- 29022133 TI - Arginine Kinases from the Precious Corals Corallium rubrum and Paracorallium japonicum: Presence of Two Distinct Arginine Kinase Gene Lineages in Cnidarians. AB - The cDNA sequence of arginine kinase (AK) from the precious coral Corallium rubrum was assembled from transcriptome sequence data, and the deduced amino acid sequence of 364 residues was shown to conserve the structural features characteristic of AK. Based on the amino acid sequence, the DNA coding C. rubrum AK was synthesized by overlap extension PCR to prepare the recombinant enzyme. The following kinetic parameters were determined for the C. rubrum enzyme: K aArg (0.10 mM), K iaArg (0.79 mM), K aATP (0.23 mM), K iaATP (2.16 mM), and k cat (74.3 s-1). These are comparable with the kinetic parameters of other AKs. However, phylogenetic analysis suggested that the C. rubrum AK sequence has a distinct origin from that of other known cnidarian AKs with unusual two-domain structure. Using oligomers designed from the sequence of C. rubrum AK, the coding region of genomic DNA of another coral Paracorallium japonicum AK was successfully amplified. Although the nucleotide sequences differed between the two AKs at 14 positions in the coding region, all involved synonymous substitutions, giving the identical amino acid sequence. The P. japonicum AK gene contained one intron at a unique position compared with other cnidarian AK genes. Together with the observations from phylogenetic analysis, the comparison of exon/intron organization supports the idea that two distinct AK gene lineages are present in cnidarians. The difference in the nucleotide sequence between the coding regions of C. rubrum and P. japonicum AKs was 1.28%, which is twice that (0.54%) of mitochondrial DNA, is consistent with the general observation that the mitochondrial genome evolves slower than the nuclear one in cnidarians. PMID- 29022134 TI - The impact of smoking on disease activity, disability, and radiographic damage in rheumatoid arthritis: is cigarette protective? AB - The ojective of this study is to assess the effect of tobacco smoking on disease activity, functional ability, and joint damage in a cohort of patients with early onset rheumatoid arthritis (EORA). 129 EORA patients attending the Rheumatology Unit of the School of Medicine of the "Universidad Nacional de Colombia" and the "Clinica de Artritis y Rehabilitacion" in Bogota, Colombia, were enrolled in a prospective observational cohort study with 3-year follow-up. Clinical, biological, immunogenetics, and radiographic data were analyzed. Active disease was defined as DAS28 > 2.6. Smoking status was assessed by self-report as "never smokers" and "ever smokers". Patient groups with different smoking status were compared for RA measures. Status as "never smokers" and "ever smokers" was reported by 81.3 and 18.7%. Ever smokers had less risk of disability (HAQ-DI >= 0.5) at 36 month (Ever smokers vs. Never smokers OR for HAQ >= 0.5 0.25, 95% CI 0.06-0.97, p = 0.04). When former smokers were excluded in analysis, we found that current smoking was also associated with less disability and less risk of active disease. The percentage of erosive disease, radiographic progression, and SvdH score were similar in all smoking categories. In Colombian patients with EORA, smoking was associated with less disease activity and disability. Radiographic joint damage progressed at an equivalent rate in smokers and non smokers. These data suggest a more benign, or at least not deleterious clinical course in smokers with RA. PMID- 29022135 TI - Pcal_1311, an alcohol dehydrogenase homologue from Pyrobaculum calidifontis, displays NADH-dependent high aldehyde reductase activity. AB - Genome sequence of Pyrobaculum calidifontis, a hyperthermophilic archaeon, harbors three open-reading frames annotated as alcohol dehydrogenases. One of them, Pcal_1311, does not display a significantly high homology with any of the characterized alcohol dehydrogenases. Highest homology of 38% was found with the characterized counterpart from Geobacillus stearothermophilus. To examine the biochemical properties of Pcal_1311, we have cloned and functionally expressed the gene in Escherichia coli. Purified recombinant Pcal_1311 catalyzed the NAD(H) dependent oxidation of various alcohols and reduction of aldehydes, with a marked preference for substrates with functional group at the terminal carbon. Highest activity for the oxidation reaction (3 MUmol min-1 mg-1) was found with 1,4 butanediol and for the reduction reaction (150 MUmol min-1 mg-1) with glutaraldehyde. Both the oxidation and reduction activities increased with the increase in temperature up to 80 degrees C. Recombinant Pcal_1311 was highly stable and retained more than 90% activity even after incubation of 180 min at 90 degrees C. In addition to the thermostabilty, Pcal_1311 was highly stable in the presence of known denaturants including urea and guanidine hydrochloride. The high stability, particularly thermostability, and the NADH-dependent aldehyde reduction activity make Pcal_1311 a unique member in the alcohol dehydrogenase family. PMID- 29022136 TI - Aortic, carotid intima-media thickness and flow- mediated dilation as markers of early atherosclerosis in a cohort of pediatric patients with rheumatic diseases. AB - The aims of this study were to identify the presence of endothelial dysfunction as a marker of early atherosclerosis by measuring aortic and carotid intimal medial thickness (aIMT and cIMT) and flow-mediated dilation (FMD) and their correlation with traditional and no traditional risk factors for atherosclerosis in children with rheumatic diseases. Thirty-nine patients (mean age 15.3 +/- 5.7 years), 23 juvenile idiopathic arthritis, 9 juvenile spondyloarthropathies, 7 connective tissue diseases (mean disease duration and onset respectively 5 +/- 3.6 and 10 +/- 5 years), and 52 healthy children matched for sex and age were enrolled. Demographic data (age, sex, familiarity for cardiovascular disease), traditional risk factors for atherosclerosis (BMI, active and passive smoking, dyslipidemia), activity disease indexes (reactive count protein, erythrocyte sedimentation rate) autoantibodies, and complement tests were collected. aIMT, cIMT, and FMD were assessed following a standardized protocol by high-resolution ultrasonography. Patients resulted significantly more exposed to passive smoking and had a lower BMI and higher homocysteine level than controls. cIMT and aIMT were significantly higher in patients than controls (p < 0.001) and correlated with age at diagnosis (p < 0.001 r 0.516 and 0.706, respectively) but not with mean disease duration. FMD % was significantly reduced in patients compared to controls (p < 0.001). Subclinical atherosclerosis occurs in pediatric rheumatic diseases, mainly in early onset forms, and aIMT is an earlier marker of preclinical atherosclerosis. Premature endothelial dysfunction could be included in the follow-up of children with rheumatic disorders to plan prevention strategies of cardiovascular disease already in pediatrics. PMID- 29022137 TI - Effect of different endodontic sealers and time of cementation on push-out bond strength of fiber posts. AB - OBJECTIVES: This study aims to evaluate the effect of different endodontic sealers (epoxy resin, eugenol, and bioceramic/calcium silicate-based) and the time of cementation (immediately or 7 days after canal obturation) on the bond strength of a fiberglass post cemented with RelyXTM ARC. MATERIAL AND METHODS: Eighty-four premolars were instrumented and divided into groups (n = 12) according to the sealer and the time of post cementation: Endofill (EN), Endosequence BC Sealer (BC), and AH Plus (AH) had immediately fiber post cementation; EN7, BC7, and AH7 had post cementation after 7 days; and control group (C) had fiber post cementation without endodontic sealer. Each post space of the root was cut into slices and submitted to push-out test. Failure mode was assessed. Two-way ANOVA, Tukey's, and Dunnett's tests were used for statistical analysis (alpha = 5%). RESULTS: The type of endodontic sealer (p < 0.001), the time of post cementation (p = 0.038), and the interaction sealer time (p = 0.002) had negative influence on bond strength of fiberglass posts cemented with RelyXTM ARC. AH promoted the highest bond strength mean values (21.20 MPa immediately and 15.54 MPa at 7 days). EN (9.75 MPa immediately and 13.15 MPa at 7 days) and BC (10.43 MPa immediately and 5.73 MPa at 7 days) had lower bond strength than AH, regardless the time of cementation. CONCLUSIONS: AH was the best sealer to obturate the root canal when fiberglass cementation with resin-based cement is planned. CLINICAL RELEVANCE: The correct choice of an endodontic sealer and the adequate time of post cementation may avoid post dislocation caused by low bond strength to dentin. PMID- 29022139 TI - The longitudinal, bidirectional relationships between parent reports of child secondhand smoke exposure and child smoking trajectories. AB - This study examines the longitudinal relationships between child smoking and secondhand smoke exposure (SHSe). Participants were 222 parent-child dyads. The parents smoked, had a child with (48%) or without asthma, and were enrolled in a smoking/health intervention. Parent-reported child SHSe was measured at baseline and 4, 6, and 12-month follow-ups; self-reported child smoking was assessed at these points and at 2-months. A parallel process growth model was used. Baseline child SHSe and smoking were correlated (r = 0.30). Changes in child SHSe and child smoking moved in tandem as evidenced by a correlation between the linear slopes of child smoking and SHSe (r = 0.32), and a correlation between the linear slope of child smoking and the quadratic slope of child SHSe (r = - 0.44). Results may inform interventions with the potential to reduce child SHSe and smoking among children at increased risk due to their exposure to parental smoking. PMID- 29022138 TI - Associated and mediating variables related to quality of life among service users with mental disorders. AB - PURPOSE: This study aimed to identify variables associated with quality of life (QoL) and mediating variables among 338 service users with mental disorders in Quebec (Canada). Data were collected using nine standardized questionnaires and participant medical records. METHODS: Quality of life was assessed with the Satisfaction with Life Domains Scale. Independent variables were organized into a six-block conceptual framework. Using structural equation modeling, associated and mediating variables related to QoL were identified. RESULTS: Lower seriousness of needs was the strongest variable associated with QoL, followed by recovery, greater service continuity, gender (male), adequacy of help received, not living alone, absence of substance use or mood disorders, and higher functional status, in that order. Recovery was the single mediating variable linking lower seriousness of needs, higher service continuity, and reduced alcohol use with QoL. Findings suggest that greater service continuity creates favorable conditions for recovery, reducing seriousness of needs and increasing QoL among service users. Lack of recovery-oriented services may affect QoL among alcohol users, as substance use disorders were associated directly and negatively with QoL. CONCLUSIONS: Decision makers and mental health professionals should promote service continuity, and closer collaboration between primary care and specialized services, while supporting recovery-oriented services that encourage service user involvement in their treatment and follow-up. Community-based organizations should aim to reduce the seriousness of needs particularly for female service users and those living alone. PMID- 29022141 TI - A new species of Trichodina Ehrenberg, 1830 (Ciliophora: Trichodinidae) infecting farmed Clarias gariepinus (Burchell) (Siluriformes: Clariidae) in Cuba. AB - A new species of Trichodina Ehrenberg, 1830 collected from the skin and fins of farmed North African catfish Clarias gariepinus (Burchell) fingerlings, is described. The new species can be distinguished from other trichodinids by the characteristics of the adhesive disc, especially by the great number of denticles. Trichodina merciae n. sp. is morphologically similar to T. renicola (Mueller, 1931) and T. marplatensis Martorelli, Marcotegui & Alda, 2008, in the number of denticles, but differs in the morphometric data, denticle morphology, environment and location. Trichodina merciae n. sp. has broad sickle-shaped blades and thin, straight rays, while T. marplatensis has broad club-shaped blades and wide S-shaped rays. Besides, denticle length, blade length, ray length, width of central part and denticle span of the new species are greater than T. marplatensis. However, the diameter of denticle ring and the diameter of the central area in T. marplatensis is larger than the ones in T. merciae n. sp. This is the first record of freshwater ectoparasite trichodinid with an average number of denticles greater than 50. PMID- 29022140 TI - Experimental Study of the Protective Effect of Simvastatin on Lung Injury in Rats with Sepsis. AB - Simvastatin, which is primarily prescribed to lower cholesterol, may also mitigate lung injury caused by sepsis, although the mechanisms remain elusive. This study aimed to evaluate the protective effect of simvastatin on acute lung injury in rats with sepsis and to investigate possible mechanisms. Male Wistar rats were pretreated with simvastatin (0.2 MUg/g) for 1 week before cecal ligation and puncture. Treatment with simvastatin demonstrated significant decreases in the concentration of protein, TNF-alpha, IL-1beta, IL-6, and lipocalin 2, and the number of polymorphonuclear neutrophils in bronchoalveolar lavage fluid in septic rats. In addition, simvastatin also reduced levels of Evans blue, malondialdehyde, 8-hydroxy-2'-deoxyguanosine, and wet/dry lung weight ratios, and increased the activity of superoxide dismutase in lung tissue. Furthermore, expression levels of TLR4, NF-kappaB p65, and active caspase-3 proteins and Bax mRNA were also decreased by simvastatin. H&E staining showed that severe lung injury occurred in the sepsis group and that lung injury was reduced by treatment with simvastatin. In conclusion, simvastatin improved endothelial permeability and mitigated the inflammatory response of lung tissue, the oxidative stress response, and cell apoptosis by inhibiting the TLR4/NF kappaB signaling pathway, thereby alleviating sepsis-induced acute lung injury in rats. PMID- 29022142 TI - Microvesicle-mediated delivery of miR-1343: impact on markers of fibrosis. AB - Tissue fibrosis, the development of fibrous connective tissue as a result of injury or damage, is associated with many common diseases and cannot be treated effectively. The complex biological processes accompanying fibrosis often involve aberrant signaling through the transforming growth factor beta (TGF-beta) pathway. In the search for mechanisms to repress this signaling, microRNAs have emerged as a novel class of molecules capable of targeting single members of the TGF-beta pathway, or the pathway as a whole. We previously identified miR-1343 as a potent repressor of TGF-beta signaling and fibrosis through the direct attenuation of both canonical TGF-beta receptors. Here, we build upon our previous findings to better characterize the function of endogenous miR-1343 in normal biology and examine the potential role of exogenous miR-1343 as a repressor of TGF-beta signaling. CRISPR/Cas9-mediated deletion of miR-1343 from A549 lung epithelial cells impacts several processes and genes implicated in fibrosis and known to be TGF-beta pathway effectors. Moreover, the responses are opposite to those we observed previously when miR-1343 was overexpressed in the same cell type. We also show that miR-1343 can be shuttled into exosomes, a type of extracellular vesicle that are exported by cells into the surrounding medium and can be absorbed by distant target cells. miR-1343 delivered into primary lung fibroblasts by exosomes has a measurable function in reducing TGF-beta signaling and markers of fibrosis. These results highlight a role for miR-1343 in fine tuning the TGF-beta pathway and suggest its use as a therapeutic in fibrotic disease. PMID- 29022144 TI - A Qualitative Evaluation of Engagement and Attrition in a Nurse Home Visiting Program: From the Participant and Provider Perspective. AB - Beginning parenting programs in the prenatal and early postnatal periods have a large potential for impact on later child and maternal outcomes. Home-based parenting programs, such as the Nurse Family Partnership (NFP), have been established to help address this need. Program reach and impact is dependent on successful engagement of expecting mothers with significant risks; however, NFP attrition rates remain high. The current study qualitatively examined engagement and attrition from the perspectives of NFP nurses and mothers in order to identify mechanisms that enhance service engagement. Semi-structured interviews were conducted in focus groups composed of either engaged (27 total mothers) or unengaged (15 total mothers) mothers from the NFP program. NFP nurses (25 total nurses) were recruited for individual semi-structured interviews. Results suggest that understanding engagement in the NFP program requires addressing both initial and sustained engagement. Themes associated with enhanced initial engagement include nurse characteristics (e.g., flexible, supportive, caring) and establishment of a solid nurse-family relationship founded on these characteristics. Factors impacting sustained engagement include nurse characteristics, provision of educational materials on child development, individualized services for families, and available family support. Identified barriers to completing services include competing demands and lack of support. Findings of this study have direct relevance for workforce planning, including hiring and training through integrating results regarding effective nurse characteristics. Additional program supports to enhance parent engagement may be implemented across home-based parenting programs in light of the current study's findings. PMID- 29022143 TI - Comorbidity of gastrointestinal disorders, migraine, and tension-type headache: a cross-sectional study in Iran. AB - Migraine can be accompanied by some gastrointestinal (GI) disorders. In this study, we aimed to investigate the relationship between migraine and tension-type headache (TTH) and different lower and upper GI disorders as well as non alcoholic fatty liver (NAFLD) and cholelithiasis. This cross-sectional study included 1574 overweight and obese participants who were referred to the Obesity Research Center of Sina Hospital, Tehran, Iran. The diagnosis of migraine and TTH was made by an expert neurologist based on the international classification of headache disorders-III beta (ICHD III beta). GI disorders, including irritable bowel syndrome (IBS), constipation, heartburn, dyspepsia, non-alcoholic fatty liver (NAFLD), and cholelithiasis, were diagnosed by a gastroenterology specialist. The overall mean age of participants was 37.44 +/- 12.62. A total of 181 (11.5%) migraine sufferers (with and without aura) and 78 (5%) TTH subjects were diagnosed. After adjusting for potential confounders by multivariable regression models, migraine had significant association with IBS (OR = 5.16, 95% CI = 2.07-12.85, P = 0.000), constipation (OR = 3.96, 95% CI = 2.25-6.99, P = 0.000), dyspepsia (OR = 4.12, 95% CI = 2.63-6.45, P = 0.000), and heartburn (OR = 5.03, 95% CI 2.45-10.33, P = 0.000), while the association between migraine and NAFLD was marginally significant (OR = 2.03, 95% CI = 0.98-4.21, P = 0.055). Furthermore, the prevalence of NAFLD (OR = 2.93, 95% CI 1.29-6.65, P = 0.010) and dyspepsia (OR = 4.06, 95% CI = 2.24-7.34, P = 0.000) was significantly higher in TTH patients than the headache-free group. These findings show an association between GI disorders and primary headaches especially migraine and are, therefore, of value to the management of migraine and TTH. Further studies should investigate the etiology of the relationship between all subtypes of primary headaches and GI disorders. PMID- 29022145 TI - Autoimmune enteropathies. AB - Autoimmune enteropathy (AIE) is a rare condition characterized by intractable diarrhea and immune-mediated injury of the intestinal mucosa. As the clinical and histopathologic manifestations of this disease are highly variable, its diagnosis is challenging for both clinicians and pathologists. In fact, the term autoimmune enteropathies is likely more appropriate since the clinicopathologic manifestations are observed in association with a heterogeneous group of disorders. The pathophysiology of AIE has not been fully elucidated. It appears to result from dysregulation of intestinal immunity and particularly in children, often presents in association with immunodeficiency. The overarching histopathologic changes seen in AIE include mucosal inflammation and epithelial injury, although this can manifest in the form of different patterns. Recognition of the clinical settings and of the various histologic patterns can aid the pathologist in establishing the correct diagnosis. PMID- 29022146 TI - Cupriavidus malaysiensis sp. nov., a novel poly(3-hydroxybutyrate-co-4 hydroxybutyrate) accumulating bacterium isolated from the Malaysian environment. AB - Bacterial classification on the basis of a polyphasic approach was conducted on three poly(3 hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)] accumulating bacterial strains that were isolated from samples collected from Malaysian environments; Kulim Lake, Sg. Pinang river and Sg. Manik paddy field. The Gram negative, rod-shaped, motile, non-sporulating and non-fermenting bacteria were shown to belong to the genus Cupriavidus of the Betaproteobacteria on the basis of their 16S rRNA gene sequence analyses. The sequence similarity value with their near phylogenetic neighbour, Cupriavidus pauculus LMG3413T, was 98.5%. However, the DNA-DNA hybridization values (8-58%) and ribotyping analysis both enabled these strains to be differentiated from related Cupriavidus species with validly published names. The RiboPrint patterns of the three strains also revealed that the strains were genetically related even though they displayed a clonal diversity. The major cellular fatty acids detected in these strains included C15:0 ISO 2OH/C16:1 omega7c, hexadecanoic (16:0) and cis-11-octadecenoic (C18:1 omega7c). Their G+C contents ranged from 68.0 to 68.6 mol%, and their major isoprenoid quinone was Ubiquinone Q-8. Of these three strains, only strain USMAHM13 (= DSM 25816 = KCTC 32390) was discovered to exhibit yellow pigmentation that is characteristic of the carotenoid family. Their assembled genomes also showed that the three strains were not identical in terms of their genome sizes that were 7.82, 7.95 and 8.70 Mb for strains USMAHM13, USMAA1020 and USMAA2-4, respectively, which are slightly larger than that of Cupriavidus necator H16 (7.42 Mb). The average nucleotide identity (ANI) results indicated that the strains were genetically related and the genome pairs belong to the same species. On the basis of the results obtained in this study, the three strains are considered to represent a novel species for which the name Cupriavidus malaysiensis sp. nov. is proposed. The type strain of the species is USMAA1020T (= DSM 19416T = KCTC 32390T). PMID- 29022147 TI - Interventional Activism in Gastroenterology. PMID- 29022148 TI - Utilizing Education and Perspective Taking to Remediate the Stigma of Taking Antidepressants. AB - The incidence of depression has been increasing. One of the best interventions for depression is taking antidepressant medications. However, the stigma of taking antidepressants has been shown to be a barrier not only to seeking an antidepressant regimen but also adhering to it. This may have negative consequences for people who suffer from depression. Thus, in two studies, we investigate the incidence of felt stigma of taking antidepressants among clinically depressed individuals who take antidepressants and the effectiveness of two possible interventions to reduce this stigma among others. Study 1 revealed that stigma toward individuals who take antidepressants is a reality, either because people were not educated about depression and antidepressants, or because they did not show empathy or did not take on perspectives from the victim's point-of-view. Based on these results, we used an experimental design in Study 2 to investigate the effects of education and perspective-taking interventions in diminishing the stigma of taking antidepressants. These results suggest that participant gender played a moderating role in the effectiveness of education and perspective taking, such that a combination of the two interventions resulted in lower stigma for men but not for women. These results suggest that people can be trained (using a simple, low-fidelity intervention) to be more accepting of antidepressant use among their friends, family members, and colleagues, resulting in better outcomes for those who benefit from taking antidepressants. PMID- 29022149 TI - Brief Report: Self-Reported Academic, Social, and Mental Health Experiences of Post-Secondary Students with Autism Spectrum Disorder. AB - Increasing numbers of individuals with autism spectrum disorder (ASD) are enrolling in post-secondary academic institutions. However, research indicates that post-secondary students with ASD are struggling more than their typically developing peers, with high rates of loneliness, anxiety, depression, and an increased incidence of dropping-out before completion of their degrees. The current study utilized an online survey to gain insight into the self-reported academic, social, and mental health experiences of post-secondary students with ASD. Participants reported high levels of academic comfort, but struggled with issues of isolation/loneliness and high levels of stress, anxiety, and depression. Of greatest concern, were the nearly three-quarters of participants who reported lifetime suicidal behaviors. Further analysis on collected data and implications of findings are discussed. PMID- 29022150 TI - Healing of the perineal wound after proctectomy in Crohn's disease patients: only preoperative perineal sepsis predicts poor outcome. AB - BACKGROUND: The aim of our study was to assess perineal wound healing in patients with Crohn's disease (CD) who undergo proctectomy or proctocolectomy with end ileostomy and to evaluate the influence of various factors including types of perineal dissection on eventual wound healing. METHODS: Data for patients with CD who underwent proctectomy or total proctocolectomy with end ileostomy from 1995 to 2012 were reviewed. The relationship between perineal wound healing and demographics, patient characteristics, and other factors was assessed using univariate and multivariate analyses. RESULTS: The perineal wound healed by 12 weeks in 72 (52.9%) out of 136 patients (63.2% female, mean age 41 +/- 13 years); delayed healing occurred in 35 patients (25.7%), and in 29 patients (21.3%), there was non-healing. On multivariate analysis, the only factor associated with delayed healing and non-healing was preoperative perineal sepsis (p = 0.001). CONCLUSIONS: After proctectomy or proctocolectomy for CD, perineal wound healing is poor and poses a particular challenge for patients with preoperative perineal sepsis. These findings support a preoperative discussion regarding CD patients that examines potential outcomes and the consideration of measures such as the initial creation of defunctioning ostomy or control/drainage of local sepsis prior to proctectomy. PMID- 29022152 TI - Microwave-Assisted Combustion Synthesis of ZnO:Eu Nanoparticles: Effect of Fuel Types. AB - Nanoparticles of Europium oxide doped with Zinc oxide were synthesized via microwave-assisted combustion method. Citric acid as a simultaneous fuel and chelating agent and glycine as a fuel and mixture of these fuels were sleeted. X Ray diffraction patterns (XRD) indicated the formation of ZnO structure with a few amount of Eu2O3 phase. Fourier transformation infra red (FTIR) spectra reveal the increase of ZnO4 bonds with glycine content of fuels mixture. Scanning electron microscope (SEM) images showed the conversion of nanosphere to spongy like structure with respect to change of fuel mixtures from citric to glycine. From transmission electron microscopy (TEM) nanoparticles of a mean size 30 nm are observed Green fluorescence emission of different samples was due to activation of self activated center of ZnO structure through transition of electron from Eu3+ to Vzn sites. PMID- 29022151 TI - Comparative Safety of Targeted Therapies for Metastatic Colorectal Cancer between Elderly and Younger Patients: a Study Using the International Pharmacovigilance Database. AB - BACKGROUND: Metastatic colorectal cancer (mCRC) is increasingly treated using targeted therapies. Post-marketing safety of these agents is understudied, especially in the elderly. OBJECTIVE: This study aimed to compare, according to age, the adverse drug reactions (ADRs) of targeted therapies used for mCRC in real life. PATIENTS AND METHODS: An extraction of VigiBase, which contains World Health Organization individual case safety reports (ICSRs), was performed. All ADR reports with aflibercept, bevacizumab, cetuximab, panitumumab, or regorafenib used in CRC were considered. For all drugs, chi-square tests were used to compare frequencies of serious ADRs between patients aged >=75 and <75 years. For selected ADRs and each drug, the drug-ADR association compared to other anticancer drugs was estimated through the proportional reporting ratio (PRR) in both age groups. RESULTS: There were 21,565 ICSRs included, among which 74% were serious and 11% were fatal. Median age was 64 years (Inter Quartile Range = 56 71) and 15% of patients were aged >=75; 57% were male. Serious ICSRs accounted for 47,292 ADRs. Neutropenia was not more reported in elderly for all drugs while diarrhea was more reported in elderly for panitumumab. Cardiac disorders were more reported in elderly patients, in particular heart failure, especially for bevacizumab, cetuximab, and regorafenib, as were respiratory, thoracic, and mediastinal disorders. Most of PRR were not different between the two groups, except encephalopathies, which were significantly associated with bevacizumab in the elderly only. CONCLUSIONS: ADRs related to targeted therapies used for mCRC treatment were different across age groups; yet, not systematically more reported or worse in elderly patients. Selected elderly patients could, therefore, be treated with these targeted therapies. PMID- 29022153 TI - Practical considerations when analyzing discrete survival times using the grouped relative risk model. AB - The grouped relative risk model (GRRM) is a popular semi-parametric model for analyzing discrete survival time data. The maximum likelihood estimators (MLEs) of the regression coefficients in this model are often asymptotically efficient relative to those based on a more restrictive, parametric model. However, in settings with a small number of sampling units, the usual properties of the MLEs are not assured. In this paper, we discuss computational issues that can arise when fitting a GRRM to small samples, and describe conditions under which the MLEs can be ill-behaved. We find that, overall, estimators based on a penalized score function behave substantially better than the MLEs in this setting and, in particular, can be far more efficient. We also provide methods of assessing the fit of a GRRM to small samples. PMID- 29022154 TI - Runoff of the herbicides triclopyr and glufosinate ammonium from oil palm plantation soil. AB - This study focused on the residue detection of the herbicides triclopyr and glufosinate ammonium in the runoff losses from the Tasik Chini oil palm plantation area and the Tasik Chini Lake under natural rainfall conditions in the Malaysian tropical environment. Triclopyr and glufosinate ammonium are post emergence herbicides. Both herbicides were foliar-sprayed on 0.5 ha of oil palm plantation plots, which were individualized by an uneven slope of 10-15%. Samples were collected at 1, 3, 7, 15, 30, 45, 60, 90, and 120 days after treatment. The concentrations of both herbicides quickly diminished from those in the analyzed sample by the time of collection. The highest residue levels found in the field surface leachate were 0.031 (single dosage, triclopyr), 0.041 (single dosage, glufosinate ammonium), 0.017 (double dosage, triclopyr), and 0.037 MUg/kg (double dosage, glufosinate ammonium). The chromatographic peaks were observed at "0" day treatment (2 h after herbicide application). From the applied active ingredients, the triclopyr and glufosinate losses were 0.025 and 0.055%, respectively. The experimental results showed that both herbicides are less potent than other herbicides in polluting water systems because of their short persistence and strong adsorption onto soil clay particles. PMID- 29022155 TI - Some immunological responses of common carp (Cyprinus carpio) fingerling to acute extremely low-frequency electromagnetic fields (50 Hz). AB - Increasing of anthropogenic electromagnetic fields in aquatic environments has been recently become the core of attention. In this study, the effect of extremely low-frequency electromagnetic fields (50 Hz) on immune status and metabolic markers of common carp fingerling was assessed. The fish were exposed to extremely low-frequency electromagnetic fields at four intensities of 0.1, 0.5, 1, and 2 mT only once for 2 h; then, they were reared for 60 days. Results showed that the levels of aspartate aminotransferase (AST) and alanine transaminase (ALT) and alkaline phosphatase (ALP) were increased with an increase in the electromagnetic field intensity on 15 and 60 days post exposure. A significant increase was obtained in these enzyme levels in all the tested intensities compared to the control one (p < 0.05), with a maximum value measured in 2-mT trail. Conversely, with an increasing in the electromagnetic intensity, the levels of C3, C4, and lysozyme were reduced in all the treated groups in comparison with the control group (p < 0.05). The results suggested a significant impact of electromagnetic on fish immunophysiological functions. Therefore, it is required to have serious attention in aquatic ecosystems. PMID- 29022156 TI - Recent advances in imine reductase-catalyzed reactions. AB - Imine reductases are nicotinamide-dependent enzymes that catalyze the asymmetric reduction of various imines to the corresponding amine products. Owing to the increasing roles of chiral amines and heterocyclic compounds as intermediates for pharmaceuticals, the demand for novel selective synthesis strategies is vitally important. Recent studies have demonstrated the discovery and structural characterization of a number of stereoselective imine reductase enzymes. Here, we highlight recent progress in applying imine reductases for the formation of chiral amines and heterocycles. It particularly focuses on the utilization of imine reductases in reductive aminations of aldehydes and ketones with various amine nucleophiles, one of the most powerful reactions in the synthesis of chiral amines. Second, we report on the synthesis of saturated substituted N heterocycles by combining them with further biocatalysts, such as carboxylic acid reductases, oxidases or transaminases. Finally, we summarize the latest applications of imine reductases in the promiscuous asymmetric hydrogenation of a highly reactive carbonyl compound and the engineering of the cofactor specificity from NADPH to NADH. PMID- 29022157 TI - Radiosurgery in trochlear and abducens nerve schwannomas: case series and systematic review. AB - INTRODUCTION: Schwannomas involving the occulomotor cranial nerves (CNs; III, IV and VI), can be disabling, due to the associated diplopia and decreased quality of life and are extremely rare. We evaluated the role of Gamma Knife surgery (GKS) in these cases. METHODS: Five patients with CN IV and VI schwannomas (three and two, respectively) were treated in Lausanne University Hospital between 2010 and 2015. Four benefitted from upfront GKS and one from a combined approach (planned subtotal resection followed by GKS), due to a large preoperative tumour volume (size, 3 * 2 * 2.5 cm; volume, 7.9 ml), with symptomatic mass effect and oedema, as well as an entrapement cyst at the brainstem interface, in a young patient. Neuro-ophtalmological evaluation was performed at baseline and during each follow-up time-point. A systematic literature review is presented and compared to the present report. RESULTS: The mean follow-up was 44.4 months (12 54). Initial clinical presentation was diplopia in four cases and cavernous sinus syndrome in one. The marginal dose was 12 Gy in all cases. The mean target volume was 1.51 cm3 (0.086-5.8). The mean prescription isodose volume (PIV) was 1.71 cm3 (0.131-6.7). At last follow-up, all patients presented with disappearance of the baseline symptoms. Tumour control was achieved in 100%, with decrease in volume in all cases. The systematic review analysed 11 peer-reviewed studies, with a total of 35 patients. For uniformly reported CN VI, the mean marginal radiation dose ranged between 12 and 12.5 Gy, with disappearance of symptoms in 12.5%, improvement in 31.25%, stabilisation in 6.25%, worsening in 12.5%. Tumour volume decreased in all cases. CONCLUSIONS: Our data suggest that first intention GKS is a safe and effective option for patients with small to medium size oculomotor schwannomas, providing a high rate of clinical alleviation and tumour control. When the initial tumour volume is too large for first intention GKS, a combined approach with planned subtotal resection followed by GKS can be performed, with favourable and comparable outcomes as in upfront GKS. PMID- 29022158 TI - Clinical utility of bioelectrical impedance analysis in patients with locoregional muscle invasive or metastatic urothelial carcinoma: a subanalysis of changes in body composition during neoadjuvant systemic chemotherapy. AB - PURPOSE: The aim of this study was to determine the clinical utility of bioelectrical impedance analysis (BIA) in a cohort of patients with advanced urothelial carcinoma (UC). METHODS: We prospectively evaluated body composition in 35 patients with locoregional muscle invasive (>= T2 and N0-2M0) or metastatic UC. Body composition was evaluated using multifrequency BIA at baseline (n = 35) and during chemotherapy in patients receiving neoadjuvant chemotherapy (n = 14). The BIA-predicted body composition index was compared with the computed tomography-measured muscle index and the prognostic nutrition index. Changes in body composition during neoadjuvant chemotherapy were recorded and compared with the incidence of hematological adverse events. RESULTS: There was a significant correlation between the BIA-predicted skeletal muscle index and the computed tomography-measured skeletal muscle index (P = 0.004), while there was no significant correlation between the prognostic nutrition index and the BIA predicted nutrition index. After the completion of 3 cycles of neoadjuvant chemotherapy, the skeletal muscle index showed a significant decrease (P = 0.016), while the total body fat mass (P = 0.025), body fat percentage (P = 0.013), and body mass index (P = 0.004) showed a significant increase (a tendency toward "sarcopenic obesity"). Patients who experienced grade 2-3 anemia during neoadjuvant chemotherapy showed a significantly lower increase in body mass index compared with patients who did not experience high-grade toxicities (P = 0.032). CONCLUSIONS: BIA could contribute to other methods of nutrition and muscle assessment for pretreatment risk stratification in patients with UC. Further study of a larger cohort is required to elucidate the clinical impact of changes in body composition during chemotherapy. PMID- 29022159 TI - Modulation of trace element bioavailability for two earthworm species after biochar amendment into a contaminated technosol. AB - Biochars are used as amendments to improve soil quality, but their effects on edaphic organisms such as earthworms remain controversial. This study aimed to assess the effects of adding a poultry manure-derived biochar into a contaminated technosol on trace element (TE) (i.e. As, Cd, Cu, Pb, and Zn) bioavailability for two earthworm species, Aporrectodea icterica and Aporrectodea longa. Three components of the bioavailability concept were determined using a pot experiment: (1) total soil TE (potentially reactive) and TE concentrations in the soil pore water (environmental availability), (2) TE concentrations in depurated whole earthworm bodies (environmental bioavailability) and (3) ecophysiological and biochemical effects on earthworms (toxicological bioavailability). Biochar addition increased TE concentrations in the soil pore water respectively from 1.8, 2.7, 9.4, 0.7 and 959 to 6, 6.2, 19.3, 6.9, and 3003 ug L-1 for As, Cd, Cu, Pb and Zn. Biochar addition did not influence TE environmental bioavailability for earthworms, except a decreased As concentration (32.5 to 15.2 ug g-1) in A. icterica. This suggests an inter-specific variability in As homeostasis in the Aporrectodea genus. In line with this internal As decrease, the Glutathione-S transferase (GST) activity decreased by 42% and protein and lipid contents slightly increased (14 and 25%, respectively) in A. icterica tissues. The body weight of both earthworm species decreased for the biochar-amended soil. Environmental TE availability depended on both the biochar addition and the earthworm activity in the contaminated soil, while environmental and toxicological bioavailabilities resulted from the earthworm species, the targeted TE and biochar supply to the soil. PMID- 29022160 TI - A Catalyst from Burkholderia cenocepacia for Efficient Anti-Prelog's Bioreduction of 3,5-Bis(Trifluoromethyl) Acetophenone. AB - (R)-3, 5-Bis(trifluoromethyl)phenyl ethanol is a key chiral intermediate for the synthesis of aprepitant. Through a genome mining approach, an NADPH-dependent short-chain dehydrogenases derived from Burkholderia cenocepacia (Bc-SDR) was discovered with excellent anti-Prelog's stereoselectivity of reducing 3, 5 bis(trifluoromethyl) acetophenone. The enzyme with 247 amino acids was successfully expressed in Escherichia coli and the molecular weight was about 26 kDa. Optimization of reaction conditions showed that the optimum temperature and pH of the enzyme was 25 degrees C and pH 7.0, respectively. Strong enhancement of enzyme activity was observed in the presence of 1 mM Mn2+. In addition, Bc-SDR exhibited (R)-selective enantioselectivity toward acetophenone derivatives, which makes it a potential catalyst for obtaining aromatic chiral alcohols as useful blocks in pharmaceutical applications. PMID- 29022162 TI - The Effect of Religious Belief and Forgiveness on Coping with Diabetes. AB - We aimed to investigate the relationship of religious beliefs and forgiveness in diabetic patients with various sociodemographic characteristics, emotional problems and glycaemic control. The study comprises 100 patients diagnosed with type 2 DM. We used a data collection form, the Scale of Forgiveness and Religiosity (SFR), Problem Areas in Diabetes Scale (PAID), Beck Depression Inventory (BDI), State-Trait Anxiety Inventory (STAI) and the Audit of Diabetes Dependent Quality of Life (ADDQoL). We also recorded blood glucose and HbA1c test results. A statistically significant relationship was determined only between the scores of the STAI-I and the religious belief scales (r = 0.198, p = 0.049). A statistically significant negative relationship was determined between the forgiveness scale points and the BDI (r = 0.326, p = 0.001), the STAI-II (r = 0.308, p = 0.002) and PAID (r = 0.313, p = 0.001) and a positive correlation with ADDQoL (r = 0.284, p = 0.004). To conclude, forgiveness by patient himself or others reduced the emotional problems which were experienced related to diabetes by reducing stress levels and could increase quality of life. PMID- 29022164 TI - Is use of glycine-containing drugs in anesthesia safe? PMID- 29022163 TI - Comparison of central corneal thickness with four different optical devices. AB - BACKGROUND: To compare the consistency between the average scores of the contact central corneal thickness measurements from ultrasound pachymetry devices still gold standard, such as iPac(r) and Echoscan US-500, and noncontact measurements via Pentacam HR and Sirius topography. METHODS: This prospective study, subsequently admitted to the ophthalmology department, 76 healthy individuals were performed. The measurements were repeated three times for each eye, and average scores were statistically analyzed on the same day and almost at the same time. While measuring the eyes, Pentacam HR, Sirius topography, iPac(r), and Echoscan US-500 were used, respectively. The inter-rater agreement of measurements from the devices was assessed with intraclass correlation coefficient, and 95% Confidence Interval and p values demonstrating statistically significance were also presented. In the graphical assessment of the agreement, the Bland-Altman graph was used. RESULTS: Among 76 study participants, 43 (56.6%) were composed of women, and age level was 38.6 +/- 12.5 years, ranging between 18 and 69. It was observed that the highest agreement was between the measurements obtained from Echoscan US-500 and iPac(r) devices, but the agreement between the measurements of different devices was higher than 0.90. Bland-Altman graphics were also investigated; the results of four different devices were seen to be consistent with one another. CONCLUSIONS: Therefore, the devices we compared in the study can be used as alternatives to one another due to the higher consistency between CCT measurements provided with through UP devices of Echoscan US-500 and iPac(r), and Pentacam HR and Sirius topography devices. CLINICAL TRIAL REGISTRATION NUMBER: 2016/112. PMID- 29022161 TI - POM-1 inhibits P2 receptors and exhibits anti-inflammatory effects in macrophages. AB - Extracellular nucleotides can modulate the immunological response by activating purinergic receptors (P2Rs) on the cell surface of macrophages, dendritic, and other immune cells. In particular, the activation of P2X7R can induce release of cytokines and cell death as well as the uptake of large molecules through the cell membrane by a mechanism still poorly understood. Polyoxotungstate-1 (POM-1) has been proposed as a potent inhibitor of ecto-nucleotidases, enzymes that hydrolyze extracellular nucleotides, regulating the activity of P2Rs. However, the potential impact of POM-1 on P2Rs has not been evaluated. Here, we used fluorescent dye uptake, cytoplasmic free Ca2+ concentration measurement, patch clamp recordings, scanning electron microscopy, and quantification of inflammatory mediators to investigate the effects of POM-1 on P2Rs of murine macrophages. We observed that POM-1 blocks the P2YR-dependent cytoplasmic Ca2+ increase and has partial effects on the cytoplasmic Ca2+, increasing dependence on P2XRs. POM-1 can inhibit the events related with ATP-dependent inflammasome activation, anionic dye uptake, and also the opening of large conductance channels, which are associated with P2X7R-dependent pannexin-1 activation. On the other hand, this compound has no effects on cationic fluorescent dye uptake, apoptosis, and bleb formation, also dependent on P2X7R. Moreover, POM-1 can be considered an anti-inflammatory compound, because it prevents TNF-alpha and nitric oxide release from LPS-treated macrophages. PMID- 29022165 TI - A new approach to treat bone gaps after midfacial and zygomatic fractures with a collagen membrane. AB - PURPOSE: The aim of the study was to analyze the eligibility of resorbable collagen membrane in the treatment of midfacial fractures to prevent gap formation and subsequent cheek tissue retraction. MATERIAL AND METHODS: We included nine patients (six males, three females; mean age 51; range 20-73 years; mean bone gap size 8.03 * 13.12 mm) in a retrospective study design. The defect size was assessed by ultrasound. RESULTS: After a healing period of 4 to 55 weeks, treatment resulted in a significant reduction of gap size (residual mean bone gap size 6.14 * 7.32 mm). CONCLUSIONS: Native resorbable collagen membrane is a promising tool to reduce the size of bony gap in midfacial defects. PMID- 29022166 TI - Patient views about polypharmacy medication review clinics run by clinical pharmacists in GP practices. AB - Background Polypharmacy can decrease medication adherence and increase the incidence of adverse drug reactions and drug-drug interactions, resulting in falls, hospitalisations and other complications especially in the elderly. Medication-related problems of polypharmacy can be prevented through patient centred medication reviews but research in this area has been completed largely without examining patients' viewpoints. Objective The aim was to investigate patient views about a clinical pharmacist-led patient-centred polypharmacy medication review service completed within 17 English GP practices with those >= 75 years of age and prescribed >= 15 medications, during 415 consultations. Method A patient feedback questionnaire was constructed and face validated with two pharmacists then posted by a Clinical Commissioning Group pharmacist to all patients who had taken part in the service. Data from returned questionnaires were analysed using descriptive statistics and qualitative patient comments were analysed using thematic analysis. Results Of the 166 patients (40% response rate) who returned a feedback questionnaire 83% found the service helpful. Medication related concerns of 94% who had a concern beforehand were addressed, and 80% understood their medicines better after the review. Patients appreciated pharmacists' personal approach, advice and explanation. Conclusion Patients expressed broadly positive views about polypharmacy reviews by clinical pharmacists within GP practices. PMID- 29022167 TI - Stochastic evaluation of annual micropollutant loads and their uncertainties in separate storm sewers. AB - This article describes a stochastic method to calculate the annual pollutant loads and its application over several years at the outlet of three catchments drained by separate storm sewers. A stochastic methodology using Monte Carlo simulations is proposed for assessing annual pollutant load, as well as the associated uncertainties, from a few event sampling campaigns and/or continuous turbidity measurements (representative of the total suspended solids concentration (TSS)). Indeed, in the latter case, the proposed method takes into account the correlation between pollutants and TSS. The developed method was applied to data acquired within the French research project "INOGEV" (innovations for a sustainable management of urban water) at the outlet of three urban catchments drained by separate storm sewers. Ten or so event sampling campaigns for a large range of pollutants (46 pollutants and 2 conventional water quality parameters: TSS and total organic carbon (TOC)) are combined with hundreds of rainfall events for which, at least one among three continuously monitored parameters (rainfall intensity, flow rate, and turbidity) is available. Results obtained for the three catchments show that the annual pollutant loads can be estimated with uncertainties ranging from 10 to 60%, and the added value of turbidity monitoring for lowering the uncertainty is demonstrated. A low inter annual and inter-site variability of pollutant loads, for many of studied pollutants, is observed with respect to the estimated uncertainties, and can be explained mainly by annual precipitation. PMID- 29022168 TI - Vertebral heights and ratios are not only race-specific, but also gender- and region-specific: establishment of reference values for mainland Chinese. AB - : This study established gender-specific reference values in mainland Chinese (MC) and is important for quantitative morphometry for diagnosis and epidemiological study of osteoporotic vertebral compressive fracture. Comparisons of reference values among different racial populations are then performed to demonstrate the MC-specific characteristic. PURPOSE: Osteoporotic vertebral compressive fracture (OVCF) is a common complication of osteoporosis in the elder population. Clinical diagnosis and epidemiological study of OVCF often employ quantitative morphometry, which relies heavily on the comparison of patients' vertebral parameters to existing reference values derived from the normal population. Thus, reference values are crucial in clinical diagnosis. To our knowledge, this is the first study to establish reference values of the mainland Chinese (MC) for quantitative morphometry. METHODS: Vertebral heights including anterior (Ha), middle (Hm), posterior (Hp) heights, and predicted posterior height (pp) from T4 to L5 were obtained; and ratios of Ha/Hp, Hm/Hp and Hp/pp. were calculated from 585 MC (both female and male) for establishing reference values and subsequent comparisons with other studies. RESULTS: Vertebral heights increased progressively from T4 to L3 but then decreased in L4 and L5. Both genders showed similar ratios of vertebral dimensions, but male vertebrae were statistically larger than those of female (P < 0.01). Vertebral size of MC population was smaller than that of US and UK population, but was surprisingly larger than that of Hong Kong Chinese, although these two are commonly considered as one race. Data from different racial populations showed similar dimensional ratios in all vertebrae. CONCLUSIONS: We established gender-specific reference values for MC. Our results also indicated the necessity of establishing reference values that are not only race- and gender-specific, but also population- or region-specific for accurate quantitative morphometric assessment of OVCF. PMID- 29022169 TI - Consequences of hyperfiltration after significant renal ablation early in life. PMID- 29022170 TI - Modified staging system for pulmonary carcinoids on the basis of lung cancer TNM system. AB - BACKGROUND: Pulmonary carcinoids are being staged along the lines of lung cancer American Joint Committee on Cancer (AJCC) staging system. The current study evaluated the prognostic value of a modified staging system for patients with pulmonary carcinoid. PATIENTS AND METHODS: Surveillance, Epidemiology and End Results (SEER) database (2004-2014) was searched through SEER*Stat program. Through recursive partitioning analysis and subsequent decision tree formation, suggested stages were constructed. Overall survival analyses were performed through Kaplan-Meier analysis. The cancer-specific Cox regression hazard (adjusted for age, gender, race, sub-site and surgery) was calculated and pairwise comparisons of hazard ratios were conducted. RESULTS: A total of 6395 pulmonary carcinoid patients were recruited in the period from 2004-2014. Pairwise hazard ratio comparisons among different AJCC 8th stages were conducted and all comparisons were non-significant except for stage IIB vs. stage IIIA and stage IIIA vs. stage IIIB. Pairwise hazard ratio comparisons among different modified staging system stages were conducted and all comparisons were significant except for stage III vs. stage IV. C-statistic (using death from pulmonary carcinoid as the dependent variable) for AJCC 8th staging system was: 0.794 (SE 0.013; 95% CI 0.769-0.818); for AJCC 7th staging system was: 0.789 (SE 0.013; 95% CI 0.764-0.815), while c-statistic for the modified staging system was: 0.802 (SE 0.012; 95% CI 0.778-0.827). CONCLUSION: The proposed modified staging system provided a simpler yet prognostically more relevant classification of pulmonary carcinoids compared to AJCC staging systems (both 7th and 8th editions). PMID- 29022171 TI - Debating social egg freezing: arguments from phases of life. AB - So-called "social egg freezing" allows a woman to retain the possibility of trying to have a child with her own oocytes later in life, even after having become infertile in the strict sense of the word (that is, infertile without assistance in reproduction).There is a debate about whether it is morally permissible at all, the extent to which it should be permitted legally or even supported, and whether it is ethically desirable. This paper contributes some thoughts to the issue of ethical desirability. More precisely it deals with the question of whether there is any valuable argument to be made on the basis of the idea of life phases and normative expectations related to them. So the question is: Is there a right time in life to have a child, and does this speak against or in favor of social freezing? This question is answered in three steps. First, I will give an overview of ethical arguments that are mostly put forward in favor or against the use of social egg freezing and show that and why the question of life phases should be taken into account. Second, I will sketch what I understand by phases of life, more precisely, what I understand by normatively conceptualized life stages, that are to be distinguished from other kinds of life phases, and how they relate to a good life. Third, I will present two arguments that rely on the idea of life stages and speak against social egg freezing. However, I will criticize them and instead show that from the perspective of life stages nothing speaks against using the technique within certain limits. PMID- 29022173 TI - Quantifying the potential export flows of used electronic products in Macau: a case study of PCs. AB - The used electronic product (UEP) has attracted the worldwide attentions because part of e-waste may be exported from developed countries to developing countries in the name of UEP. On the basis of large foreign trade data of electronic products (e-products), this study adopted the trade data approach (TDA) to quantify the potential exports of UEP in Macau, taking a case study of personal computers (PCs). The results show that the desktop mainframes, LCD monitors, and CRT monitors have more low-unit-value trades with higher trade volumes in the past 10 years, while the laptop and tablet PCs, as the newer technologies, owned the higher ratios of the high-unit-value trades. During the period of 2005-2015, the total mean exports for used laptop and tablet PCs, desktop mainframes, and LCD monitors were approximately 18,592, 79,957, and 43,177 units, respectively, while the possible export volume of used CRT monitors was higher, up to 430,098 units in 2000-2010. Noticed that these potential export volumes could be the lower bound because not all used PCs may be shipped using the PC trade code. For all the four kinds of used PCs, the majority (61.6-98.82%) of the export volumes have gone to Hong Kong, followed by Mainland China and Taiwan. Since 2011, there was no CRT monitor export; however, the other kinds of used PC exports will still exist in Macau in the future. The outcomes are helpful to understand and manage the current export situations of used products in Macau, and can also provide a reference for other countries and regions. PMID- 29022174 TI - Challenges of Females with Autism: A Parental Perspective. AB - Most studies investigating the experiences and needs of individuals with ASD have largely focused on males. Hence, this study investigates parents' perspectives on the challenges that their daughters with ASD face. In total, 40 parents of 40 females with autism (age range = 4-29 years; mean = 15.9) participated in the study. Five separate, 2-h long focus groups were conducted, with 7-10 participants in each group. Field notes were analyzed using thematic analysis. Some of the issues parents discussed were similar to those experienced by males with ASD, such as challenges in social interactions. However, other issues discussed were of particular relevance to girls with ASD, including difficulties socializing with other girls, sex-specific puberty issues, barriers in accessing intervention and sexual vulnerability. PMID- 29022176 TI - Dexamethasone for chronic subdural hematoma: a systematic review and meta analysis. PMID- 29022175 TI - Dental anxiety and oral health-related quality of life in aggressive periodontitis patients. AB - OBJECTIVES: To measure dental anxiety levels and oral health-related qualities of life (OHRQoL) in patients with aggressive periodontitis (AgP) compared to controls and analyze their association with various demographic and clinical parameters. METHODS: Sixty consecutive patients with AgP were compared to 80 age- and sex-matched controls with no known history of periodontal disease. Collected data included demographics, smoking habits, numerical rating scale (NRS), Corah's Dental Anxiety Scale (DAS) and Oral Health Impact Profile-14 (OHIP-14), DMFT index (Decayed, Missing and Filled Teeth), Plaque Index (PI), probing depth (PD), bleeding on probing (BOP), and radiographic bone loss. RESULTS: AgP patients exhibited statistically significant higher scores in the DAS total as well as sub scores, except from DAS 1st question. Compared to the control group, AgP patients exhibited worse OHIP-14 global as well as in all individual OHIP-14 domains scores. Among both AgP and control patients, the physical pain domain was where the highest impact was recorded, while the lowest impact was recorded in the functional limitation domain. CONCLUSIONS: AgP patients were positively associated with higher levels of dental anxiety and worse OHRQoL. Self-perception of dental anxiety and OHRQoL should be regarded as an integral element in routine diagnostic work-up process of periodontal diseases. STATEMENT OF CLINICAL RELEVANCE: Aggressive periodontitis (AgP) patients exhibited higher dental anxiety levels and worse oral health-related quality of life (OHRQoL) compared to controls. Professionals should design strategies that will cope with the dental anxiety associated with the treatment and prevent decreases in OHRQoL. PMID- 29022177 TI - Association between dietary zinc intake and mortality among Chinese adults: findings from 10-year follow-up in the Jiangsu Nutrition Study. AB - PURPOSE: Population studies of the association between zinc intake and mortality yield inconsistent findings. Using data from Jiangsu Nutrition Study, we aimed to assess the association between zinc intake and mortality among Chinese adults. METHODS: We prospectively studied 2832 adults aged 20 years and older with a mean follow-up of 9.8 years. At baseline, food intake was measured by 3-day weighed food record (WFR) between September and December in 2002. Death occurrence was assessed in 2012 during a household visit as well as by data linkage with the regional death registry. Hazard ratios (HRs) and 95% CI were calculated using competing risks regression (CVD and cancer mortality) and Cox proportional hazards analysis (all-cause mortality). RESULTS: During 27,742 person-years of follow-up, there were 184 deaths [63 cancer deaths and 70 cardiovascular disease (CVD) deaths]. Dietary zinc to energy ratio was positively associated with cancer and all-cause mortality. Across quartiles of the zinc to energy ratio from low to high, the HR (95% CI) for all-cause mortality was 1.00, 1.80 (95% CI 1.10-2.95), 1.55 (95% CI 0.96-2.50), and 1.85 (95% CI 1.11-3.07), respectively. Comparing the extreme quartiles of the zinc to energy ratio, the HR for cancer mortality was 2.28 (95% CI 1.03-5.04). CONCLUSION: Zinc intake was positively related to all cause mortality and cancer mortality. PMID- 29022178 TI - Interactive effects of PAHs with different rings and As on their uptake, transportation, and localization in As hyperaccumulator. AB - In order to illuminate the mechanism of the interaction of polycyclic aromatic hydrocarbon (PAH) with different benzene rings and arsenic (As) in As hyperaccumulator, Pteris vittata L., the uptakes of PAHs were investigated using hydroponics simulation and localizations of PAHs in the plant were determined using two-photon laser scanning confocal microscopy (TPLSCM). The results showed that the total As concentration in different parts of P. vittata decreased in the presence of PAHs with increased numbers of benzene rings: 38.0-47.4% for benzo(a)pyrene (BaP, five rings), 20.5-35.9% for pyrene (PYR, four rings), and 13.7-16.6% for fluorine (FLU, three rings). BaP and PYR concentrations increased, while FLU concentration decreased in the presence of As. The results of TPLSCM revealed that PAHs distributed in epidermal cells of roots, xylem, and endothelial cells of rachis, epidermis, and stomatal cells of pinnae; however, the fluorescence intensity of BaP and PYR were higher than FLU significantly in plant. This study provided important basis to further research on interactive effects of PAHs and As in the P. vittata. These findings were important to understand the mechanisms of PAH and As translocation and distribution by P. vittata. PMID- 29022180 TI - Duration of trastuzumab in HER2-positive metastatic breast cancer after complete remission: still debatable issue? PMID- 29022179 TI - First identification of porcine parvovirus 7 in China. AB - Porcine parvovirus (PPV) are small, non-enveloped and single-stranded DNA viruses, taxonomically classifiable within the family Parvoviridae. Seven PPV genotypes (PPV1 to PPV7) have been identified to date. PPV7, the most recently discovered PPV genotype, was first reported in US pigs in 2016. To explore PPV7 status in Chinese pig populations a total of 64 serum samples collected from two commercial farms in Guangdong province in 2014 were analyzed. PPV7 DNA was detected in 32.8% (21/64) of tested samples. On the porcine circovirus type 2 (PCV2) positive farm, the prevalence rate of PPV7 was 65.5% (19/29) which was significantly higher than that on the PCV2 negative farm (2/35, 5.7%), indicating a possible association between PCV2 and PPV7 infections. The sequences of three PPV7 strains were determined. Phylogenetic analysis revealed that the identified PPV7 strains circulating in China shared 98.7%-99.7% nucleotide homology with the US strain. Further sequence comparison analysis indicated that GD-2014-2 and GD 2014-3 possess a consecutive 9-nt deletion in the VP gene. This is the first report of the existence of PPV7 in China and this finding will strengthen understanding of the epidemiology of porcine parvovirus in Chinese pigs. PMID- 29022181 TI - Occurrence of selected elements (Ti, Sr, Ba, V, Ga, Sn, Tl, and Sb) in deposited dust and human hair samples: implications for human health in Pakistan. AB - The current study determined, for the first time, the levels of titanium (Ti), strontium (Sr), barium (Ba), vanadium (V), gallium (Ga), tin (Sn), thallium (Tl), and antinomy (Sb), in deposited dust, and human hair collected from general population of different geographical areas of Pakistan. All the samples were prepared by microwave digestion and measured by ICP-MS. The results showed that on deposited dust samples, the detected elements followed the descending trend as: Ti > Sr > Ba > V > Ga > Sn > Tl > Sb similar to the upper continental crust. The deposited dust samples from low elevation areas exhibited highest levels of all studied elements (except antimony which was higher in soil samples from mountainous areas), followed by rive plains, mountainous areas, and highland valleys. In contrast, on human hair samples, the elements followed the descending trend as: Sr > Ba > Ti > Ga > V > Sn > Sb > Tl respectively. Ba, Ga, and V concentrations were higher in soil samples from lower elevation Indus plain, and Sr, Tl, Sb, and Ti were higher in samples from mountainous areas. The bioaccumulation trend of all studied elements was in descending order as follows: Sb, Ga, Sn, Ba, Sr, Ti, V, Tl, respectively. Principal component analysis (PCA) and correlation matrix evidenced both geological influences and anthropogenic activities as potential sources of these studied elements. On the other hand, the risk estimation (HI > 1) concluded that population were at higher health risk (non-carcinogenic) for Ga and Ti. All other studied rare elements were within safe limit for humans from all zones. PMID- 29022182 TI - Coexistent rheumatoid arthritis and gout: a case series and review of the literature. AB - Since 1964 to present, there have been more than 33 cases of concomitant rheumatoid arthritis (RA) and gout reported in the literature. The objective of this study is to present a case series of patients with coexistent rheumatoid arthritis and gout and to provide a review of the literature. A retrospective review of a rheumatology patient database at the University of Alberta was performed (2004-2017). Patient charts were reviewed and the 1987 ARA Revised Classification Criteria for RA and 1977 ARA Classification Criteria for gout were applied to each patient. For gout, positive monosodium urate crystals on synovial fluid analysis, synovial/node biopsy, or positive dual-energy CT-gout protocol were used to satisfy the diagnosis of gout if available. Thirteen patients were identified with both RA and gout (nine men and four women). The mean age was 68.6, while the mean age at the onset of first disease was 55.3 and onset of second disease was 64.4. Eight patients were initially diagnosed with RA and subsequently developed gout, while five patients were first diagnosed with gout and subsequently developed RA. Standard radiographs showed findings characteristic of RA and gout in affected joints. In joints affected by both diseases, the gout findings predominated and the RA changes were milder. Rheumatoid arthritis and gout do coexist in the same patient, contrary to popular belief. Understanding that both conditions can occur concomitantly is necessary for clinical awareness, especially in patients with polyarticular disease that is difficult to treat. PMID- 29022184 TI - Effects of Ketoconazole on the Pharmacokinetics of Mifepristone, a Competitive Glucocorticoid Receptor Antagonist, in Healthy Men. AB - INTRODUCTION: Mifepristone, a competitive glucocorticoid receptor antagonist approved for Cushing syndrome, and ketoconazole, an antifungal and steroidogenesis inhibitor, are both inhibitors of and substrates for cytochrome P450 (CYP3A4). This study evaluated the pharmacokinetic effects of concomitant ketoconazole, a strong CYP3A4 inhibitor, on mifepristone. METHODS: In an open label, two-period, single-center study, healthy adult men received mifepristone 600 mg orally daily for 12 days (period 1) followed by mifepristone 600 mg daily plus ketoconazole 200 mg orally twice daily for 5 days (period 2). Serial pharmacokinetic blood samples were collected predose and over 24 h postdose on days 12 (period 1) and 17 (period 2). A cross-study comparison (using data on file) further examined whether systemic exposure to mifepristone plus ketoconazole exceeded the exposure following mifepristone 1200 mg orally administered for 7 days. RESULTS: Sixteen subjects were enrolled and 14 completed the study. Concomitant administration with ketoconazole increased the systemic exposure to mifepristone, based on geometric least squares mean ratios, by 28% for C max and 38% for AUC0-24. This increase was 85% and 87% of the exposure observed following mifepristone's highest label dose of 1200 mg/day for C max and AUC0-24, respectively. Adverse events (AEs) were reported in 56.3% (9/16) of subjects during administration of mifepristone alone and in 57.1% (8/14) during combination with ketoconazole. No serious AEs were reported. CONCLUSION: Systemic exposure to mifepristone increased following multiple doses of mifepristone 600 mg daily plus ketoconazole 200 mg twice daily. Little to no increase in AEs occurred. Dose adjustment of mifepristone may be needed when given with ketoconazole. FUNDING: Corcept Therapeutics. PMID- 29022186 TI - Response distortion on personality tests in applicants: comparing high-stakes to low-stakes medical settings. AB - The current study examined the degree to which applicants applying for medical internships distort their responses to personality tests and assessed whether this response distortion led to reduced predictive validity. The applicant sample (n = 530) completed the NEO Personality Inventory whilst applying for one of 60 positions as first-year post-graduate medical interns. Predictive validity was assessed using university grades, averaged over the entire medical degree. Applicant responses for the Big Five (i.e., neuroticism, extraversion, openness, conscientiousness, and agreeableness) and 30 facets of personality were compared to a range of normative samples where personality was measured in standard research settings including medical students, role model physicians, current interns, and standard young-adult test norms. Applicants had substantially higher scores on conscientiousness, openness, agreeableness, and extraversion and lower scores on neuroticism with an average absolute standardized difference of 1.03, when averaged over the normative samples. While current interns, medical students, and especially role model physicians do show a more socially desirable personality profile than standard test norms, applicants provided responses that were substantially more socially desirable. Of the Big Five, conscientiousness was the strongest predictor of academic performance in both applicants (r = .11) and medical students (r = .21). Findings suggest that applicants engage in substantial response distortion, and that the predictive validity of personality is modest and may be reduced in an applicant setting. PMID- 29022183 TI - In search of a comprehensible set of endpoints for the routine monitoring of neurotoxicity in vertebrates: sensory perception and nerve transmission in zebrafish (Danio rerio) embryos. AB - In order to develop a test battery based on a variety of neurological systems in fish, three sensory systems (vision, olfaction, and lateral line) as well as nerve transmission (acetylcholine esterase) were analyzed in zebrafish (Danio rerio) embryos with respect to their suitability as a model for the screening of neurotoxic trace substances in aquatic ecosystems. As a selection of known or putative neurotoxic compounds, amidotrizoic acid, caffeine, cypermethrin, dichlorvos, 2,4-dinitrotoluene, 2,4-dichlorophenol, 4-nonylphenol, perfluorooctanoic acid, and perfluorooctane sulfonic acid were tested in the fish embryo test (OECD test guideline 236) to determine EC10 values, which were then used as maximum test concentration in subsequent neurotoxicity tests. Whereas inhibition of acetylcholinesterase was investigated biochemically both in vivo and in vitro (ex vivo), the sensory organs were studied in vivo by means of fluorescence microscopy and histopathology in 72- or 96-h-old zebrafish embryos, which are not regarded as protected developmental stages in Europe and thus - at least de jure - represent alternative test methods. Various steps of optimization allowed this neurotoxicity battery to identify neurotoxic potentials for five out of the nine compounds: Cypermethrin and dichlorvos could be shown to specifically modulate acetylcholinesterase activity; dichlorvos, 2,4-dichlorophenol, 4 nonylphenol, and perfluorooctane sulfonic acid led to a degeneration of neuromasts, whereas both vision and olfaction proved quite resistant to concentrations <= EC10 of all of the model neurotoxicants tested. Comparison of neurotoxic effects on acetylcholinesterase activity following in vivo and in vitro (ex vivo) exposure to cypermethrin provided hints to a specific enzyme modulating activity of pyrethroid compounds. Enhancement of the neuromast assay by applying a simultaneous double-staining procedure and implementing a 4-scale scoring system (Stengel et al. 2017) led to reduced variability of results and better statistical resolution and allowed to differentiate location-dependent effects in single neuromasts. Since acetylcholinesterase inhibition and neuromast degeneration can be analyzed in 72- and 96-h-old zebrafish embryos exposed to neurotoxicants according to the standard protocol of the fish embryo toxicity test (OECD TG 236), the fish embryo toxicity test can be enhanced to serve as a sensitive neurotoxicity screening test in non-protected stages of vertebrates. PMID- 29022187 TI - Assessing the Role of Reversible Contraceptives in the Health Care of Women as it Pertains to Cancer Prevention. AB - The use of effective and reversible contraception is characterized by many non contraceptive benefits distinct from its ability to prevent pregnancy. Notably, the use of hormonal and non-hormonal birth control methods is known to impact the risk for developing certain female genital cancers as well as breast and colon cancers. We present here the current understanding of the role of effective and reversible contraceptives in the prevention and development of female genital cancers along with breast and colon cancers. Despite ongoing but unsubstantiated concerns regarding the use of hormonal and intrauterine contraceptives for a variety of clinical outcomes including cancer, contraceptive use in high- and low risk reproductive-aged women remains an important part of cancer risk reduction for many malignancies. PMID- 29022188 TI - Swimming in a tsunami of change. PMID- 29022185 TI - Biological/pathological functions of the CXCL12/CXCR4/CXCR7 axes in the pathogenesis of bladder cancer. AB - CXC chemokine ligand 12 (CXCL12) is an important member of the CXC subfamily of chemokines, and has been extensively studied in various human body organs and systems, both in physiological and clinical states. Ligation of CXCL12 to CXCR4 and CXCR7 as its receptors on peripheral immune cells gives rise to pleiotropic activities. CXCL12 itself is a highly effective chemoattractant which conservatively attracts lymphocytes and monocytes, whereas there exists no evidence to show attraction for neutrophils. CXCL12 regulates inflammation, neo vascularization, metastasis, and tumor growth, phenomena which are all pivotally involved in cancer development and further metastasis. Generation and secretion of CXCL12 by stromal cells facilitate attraction of cancer cells, acting through its cognate receptor, CXCR4, which is expressed by both hematopoietic and non hematopoietic tumor cells. CXCR4 stimulates tumor progression by different mechanisms and is required for metastatic spread to organs where CXCL12 is expressed, thereby allowing tumor cells to access cellular niches, such as the marrow, which favor tumor cell survival and proliferation. It has also been demonstrated that CXCL12 binds to another seven-transmembrane G-protein receptor or G-protein-coupled receptor, namely CXCR7. These studies indicated critical roles for CXCR4 and CXCR7 mediation of tumor metastasis in several types of cancers, suggesting their contributions as biomarkers of tumor behavior as well as potential therapeutic targets. Furthermore, CXCL12 itself has the capability to stimulate survival and growth of neoplastic cells in a paracrine fashion. CXCL12 is a supportive chemokine for tumor neovascularization via attracting endothelial cells to the tumor microenvironment. It has been suggested that elevated protein and mRNA levels of CXCL12/CXCR4/CXCR7 are associated with human bladder cancer (BC). Taken together, mounting evidence suggests a role for CXCR4, CXCR7, and their ligand CXCL12 during the genesis of BC and its further development. However, a better understanding is still required before exploring CXCL12/CXCR4/CXCR7 targeting in the clinic. PMID- 29022189 TI - Knowledge, perceptions, and practice of ecopharmacovigilance among pharmacy professionals in China. AB - Ecopharmacovigilance (EPV) is now a well-accepted critical component for the control of potential environmental risk posed by pharmaceutical residues. And improving the knowledge and perceptions about EPV, especially among pharmacy professionals, is the first step towards addressing the environmental impact of pharmaceuticals. This cross-sectional study was conducted to assess the knowledge, perceptions, and practice on EPV using a validated self-administered questionnaire delivered to a sample of 120 pharmacy professionals in Hubei Province, China. And 107 usable survey instruments were acquired. The mean score for knowledge about EPV was 3.85 out of a total of 10. The pharmacy professionals' overall perceptions of EPV and pharmaceutical pollution in environment were positive. But of the 107 respondents, 45 (42%) stated that they had not participated in any EPV measure. In addition, none had received training on EPV, and only 25 (23%) respondents had read the literature on EPV. In response to the question about the major perceived barrier to the effective implementation of EPV in China, 45 (42%) respondents chose the answer "poor awareness of EPV." These data suggests most pharmacy professionals in China had a positive attitude but lack of knowledge and practices towards EPV. Therefore, more should be done to enhance pharmacy professionals' knowledge on EPV. PMID- 29022190 TI - In vivo study of a bioactive nanoparticle-gelatin composite scaffold for bone defect repair in rabbits. AB - The purpose is to study the in vivo bioactivity of this scaffold and verify its ability to simulate the characteristics of cancellous bone. Twenty-four adult New Zealand white rabbits were divided into three groups. Bone defects above the femoral condylar of both sides were created. A newly designed bioactive nanoparticle-gelatin composite scaffold was implanted to the experimental side, while the control side was left without implantation. The repair of bone defect was monitored by X-ray examination, gross observation, Micro-CT examination and histological observation of the area of bone defect 4, 8 and 12 weeks after surgery. There was void of new bone tissue in medullary cavity in the bone defect area of the control side. In the experimental side, the composite scaffold displayed excellent biodegradability, bioactivity and cyto-compatibility. With the time laps, new bone tissue grew from the edge to center as revealed by both Micro-CT image and staining biopsy, which complies with the "creeping substitution" process. The mechanical properties of the newly designed bioactive nanoparticle-gelatin composite scaffold and the 3-D structure of new bone tissue are comparable to the surrounding cancellous bones. This newly developed bioactive nanoparticle-gelatin composite scaffold possesses good biocompatibility and in vivo osteogenic capability for bone defect repair. It may be a promising artificial bone grafts. PMID- 29022191 TI - The association between subjectively impaired sleep and symptoms of depression and anxiety in a frail elderly population. AB - BACKGROUND: Most previous studies showed an association between sleep impairment in the elderly and symptoms of depression and anxiety. Majority of these studies were conducted in "strong", community-dwelling elderly. AIM: To assess the association between subjective sleep impairment and its affective disturbances among frail elderly patients. METHODS: The retrospective study included patients 65 years old and above. Data included socio-demographic characteristics, the mini mental state examination, the short anxiety screening test, the 15-item Geriatric Depression Scale, and the Patient Health Questionnaire. The patients were asked about sleep complaints. RESULTS: The study population consisted of 496 patients. The mean age was 83.7 +/- 6.2 years, and only 7 (1.4%) did not report any sleep disturbance. After adjustment, depression symptoms were associated only with decreased overall sleep satisfaction (OR 2.62, 95% CI 1.18-5.81), while anxiety symptoms were associated with decreased overall sleep satisfaction (OR 3.17, 96% CI 1.71-5.88), difficulty falling asleep (OR 3.58, 95% CI 1.96-6.52), waking up during the night (OR 3.16, 95% CI 1.63-6.1), morning weakness (OR 2.68, 95% CI 1.44-5.0) and daytime drowsiness (OR 2.39, 95% CI 1.21-4.69). DISCUSSION: Sleep impairment is very prevalent among frail elderly and associated much more with anxiety than with depression. CONCLUSION: The findings of the present study provide further evidence for the importance in taking a detailed history of sleep habits during the course of the geriatric assessment in frail elderly patients. PMID- 29022192 TI - A positive circuit of VEGF increases Glut-1 expression by increasing HIF-1alpha gene expression in human retinal endothelial cells. AB - Treatment of human retinal microvascular endothelial cells (HRMECs) with vascular endothelial growth factor 165 (VEGF165) increased hypoxia-inducible factor 1alpha (HIF-1alpha), VEGF, and glucose transporter 1 (Glut-1) mRNA expression and Glut-1 protein localization to the membrane. In contrast, treatment of human retinal pigment epithelium cells with VEGF165 did not induce HIF-1alpha, VEGF, and Glut-1 gene expression. Microvascular endothelial cells are surrounded by astrocytic end feet in the retina. Astrocyte-derived A-kinase anchor protein 12 overexpression during hypoxia downregulated VEGF secretion, and this conditioned medium reduced VEGF and Glut-1 expression in HRMECs, suggesting that communications between astrocytes and endothelial cells may be the determinants of the blood vessel network. In HRMECs, HIF-1alpha small interfering RNA transfection blocked the VEGF165-mediated increase in VEGF and Glut-1 gene expression. Inhibition of protein kinase C (PKC) with inhibitor GF109203X or with a small interfering RNA targeting PKCzeta attenuated the VEGF165-induced Glut-1 protein expression and VEGF and Glut-1 mRNA expression. In addition, results of an immunoprecipitation assay imply an interaction between VEGF receptor 2 (VEGFR2) and PKCzeta in HRMECs. Therefore, VEGF secretion by hypoxic astrocytes may upregulate HIF-1alpha gene expression, inducing VEGF and Glut-1 expression via the VEGFR2-PKCzeta axis in HRMECs. PMID- 29022193 TI - Development of a modular vapor intrusion model with variably saturated and non isothermal vadose zone. AB - Human health risk assessment at hydrocarbon-contaminated sites requires a critical evaluation of the exposure pathways of volatile organic compounds including assessments of vapor exposure in indoor air. Although there are a number of vapor intrusion models (VIM) currently available, they rarely reproduce actual properties of soils in the vadose zone. At best, users of such models assume averaged parameters for the vadose zone based on information generated elsewhere. The objective of this study was to develop a one-dimensional steady state VIM, indoorCARETM model, that considers vertical spatial variations of the degree of saturation (or effective air-filled porosity) and temperature of the vadose zone. The indoorCARETM model was developed using a quasi-analytical equation that (1) solves the coupled equations governing soil-water movement driven by pressure head and a soil heat transport module describing conduction of heat and (2) provides a VIM that accommodates various types of conceptual site model (CSM) scenarios. The indoorCARETM model is applicable to both chlorinated hydrocarbon and petroleum hydrocarbon (PHC) contaminated sites. The model incorporates biodegradations of PHCs at a range of CSM scenarios. The results demonstrate that predictions of indoor vapor concentrations made with the indoorCARETM model are close to those of the J&E and BioVapor models under homogeneous vadose zone conditions. The newly developed model under heterogeneous vadose zone conditions demonstrated improved predictions of indoor vapor concentrations. The research study presented a more accurate and more realistic way to evaluate potential human health risks associated with the soil-vapor-to indoor-air pathways. PMID- 29022195 TI - High LC3/Beclin Expression Correlates with Poor Survival in Glioma: a Definitive Role for Autophagy as Evidenced by In Vitro Autophagic Flux. AB - Recent studies suggest the role of autophagy, an evolutionarily conserved catabolic process, in determining the response of gliomas to treatment either positively or negatively. The study attempts to characterize autophagy in low and high-grade glioma by investigating the autophagic flux and clinical significance of autophagy proteins (LC3 and beclin 1) in a group of glioma patients. We evaluated the expression of autophagic markers in resected specimens of low-grade glioma (LGG) and high-grade glioma (HGG) tissues, by immunohistochemistry and Western blotting. Our results show that expression of autophagy proteins were more prominent in HGG than in LGG. Increased level of autophagic proteins in HGG can be due to an increased rate of autophagy or can be because of blockage in the final degradation step of autophagy (defective autophagy). To distinguish these possibilities, the autophagic flux assay which helps to determine the rate of degradation/synthesis of autophagic proteins (LC3-II and p62) over a period of time by blocking the final degradation step of autophagy using bafilomycin A1 was used . The assessment of autophagic flux in ex vivo culture of primary glioma cells revealed for the first time increased turnover of autophagy in high grade compared to low grade-glioma. Though autophagic markers were reduced in LGG, functionally autophagy was non defective in both grades of glioma. We then investigated whether autophagy in gliomas is regulated by nutrient sensing pathways including mTOR and promote cell survival by providing an alternate energy source in response to metabolic stress. The results depicted that the role of autophagy during stress varies with tissue and has a negative correlation with mTOR substrate phosphorylation. We also evaluated the expression of LC3 and beclin 1 with progression free survival (PFS) using Kaplan-Meier survival analysis and have found that patients with low LC3/beclin 1 expression had better PFS than those with high expression of LC3/beclin 1 in their tumors. Together, we provide evidence that autophagy is non-defective in glioma and also show that high LC3/beclin 1 expression correlates with poor PFS in both LGG and HGG. PMID- 29022194 TI - Potential for cometabolic biodegradation of 1,4-dioxane in aquifers with methane or ethane as primary substrates. AB - The objective of this research was to evaluate the potential for two gases, methane and ethane, to stimulate the biological degradation of 1,4-dioxane (1,4 D) in groundwater aquifers via aerobic cometabolism. Experiments with aquifer microcosms, enrichment cultures from aquifers, mesophilic pure cultures, and purified enzyme (soluble methane monooxygenase; sMMO) were conducted. During an aquifer microcosm study, ethane was observed to stimulate the aerobic biodegradation of 1,4-D. An ethane-oxidizing enrichment culture from these samples, and a pure culture capable of growing on ethane (Mycobacterium sphagni ENV482) that was isolated from a different aquifer also biodegraded 1,4-D. Unlike ethane, methane was not observed to appreciably stimulate the biodegradation of 1,4-D in aquifer microcosms or in methane-oxidizing mixed cultures enriched from two different aquifers. Three different pure cultures of mesophilic methanotrophs also did not degrade 1,4-D, although each rapidly oxidized 1,1,2-trichloroethene (TCE). Subsequent studies showed that 1,4-D is not a substrate for purified sMMO enzyme from Methylosinus trichosporium OB3b, at least not at the concentrations evaluated, which significantly exceeded those typically observed at contaminated sites. Thus, our data indicate that ethane, which is a common daughter product of the biotic or abiotic reductive dechlorination of chlorinated ethanes and ethenes, may serve as a substrate to enhance 1,4-D degradation in aquifers, particularly in zones where these products mix with aerobic groundwater. It may also be possible to stimulate 1,4-D biodegradation in an aerobic aquifer through addition of ethane gas. Conversely, our results suggest that methane may have limited importance in natural attenuation or for enhancing biodegradation of 1,4 D in groundwater environments. PMID- 29022196 TI - Advances of radiation sterilisation in tissue banking. AB - Under the auspices of the IAEA tissue banking programme on "Radiation Sterilisation of Tissue Graft" conducted from 1985 to 2004, many scientists and surgeons were involved in various regional research and development (R&D) projects mainly in dealing with radiation dose selection, radiation effects on human tissues and quality system in radiation sterilisation. New findings on radiation effects, tissue processing and preservation were shared during the regional and interregional meetings and workshops. Many tissue banks started to use radiation (25 kGy) to sterilize tissue grafts for tissue safety and efficacy and still continue to use it. The IAEA Code of Practice for Radiation Sterilization of Tissues Allografts developed in 2007 offered simpler methods to conduct radiation dose setting and dose validation experiments for tissue grafts. Advances in dose selection and dose mapping are continued under the quality management system when banks need to be certified to continue their operation. The combination of good tissue processing and preservation as well as good radiation practice will ensure the tissue products are properly sterilised thus safe and of high quality. Experience in meeting challenges in using radiation sterilisation and achievements reported by the tissue bankers are shared here. PMID- 29022197 TI - A Case of Recalcitrant Psoriatic Arthritis to TNF Inhibitors Improved After Administration of Secukinumab, an IL-17A Inhibitor. AB - Psoriatic arthritis (PsA) is a unique inflammatory arthritis due to the fact that patients have to deal not only with pain but also with their skin appearance, which may have a detrimental effect on their everyday lives and psychology. Treating a patient with PsA, improving both the musculoskeletal and skin symptoms is a challenge for the clinical rheumatologist. In this case, we present a patient of recalcitrant PsA to tumor necrosis factor inhibitors (TNFi) who had an exceptional improvement after administration of the interleukin-17A inhibitor (IL 17Ai) secukinumab. PMID- 29022198 TI - Gene Disruption in Scedosporium aurantiacum: Proof of Concept with the Disruption of SODC Gene Encoding a Cytosolic Cu,Zn-Superoxide Dismutase. AB - Scedosporium species are opportunistic pathogens responsible for a large variety of infections in humans. An increasing occurrence was observed in patients with underlying conditions such as immunosuppression or cystic fibrosis. Indeed, the genus Scedosporium ranks the second among the filamentous fungi colonizing the respiratory tracts of the CF patients. To date, there is very scarce information on the pathogenic mechanisms, at least in part because of the limited genetic tools available. In the present study, we successfully developed an efficient transformation and targeted gene disruption approach on the species Scedosporium aurantiacum. The disruption cassette was constructed using double-joint PCR procedure, and resistance to hygromycin B as the selection marker. This proof of concept was performed on the functional gene SODC encoding the Cu,Zn-superoxide dismutase. Disruption of the SODC gene improved susceptibility of the fungus to oxidative stress. This technical advance should open new research areas and help to better understand the biology of Scedosporium species. PMID- 29022199 TI - Injuries in Children with Autism Spectrum Disorder: Study to Explore Early Development (SEED). AB - This study examined caregiver-reported medically-attended injuries among 30-68 month old children with autism spectrum disorder (ASD) compared to general population (POP) and non-ASD developmental disorders (DD) controls in the Study to Explore Early Development. Injuries were common in ASD cases (32.3%) as well as POP (30.2%) and DD (27.8%) controls; most resulted in an emergency visit or hospitalization. After accounting for sociodemographic, health, IQ and behavior differences, odds of injury in ASD cases were significantly higher than DD controls but similar to POP controls. Attention problems mediated the relationships. Clinicians caring for children with both ASD and attention problems should consider providing targeted safety advice. Differences in injury risk between children with ASD vs. other developmental disorders need further study. PMID- 29022200 TI - High Expression of the Mitophagy-Related Protein Pink1 is Associated with a Poor Response to Chemotherapy and a Poor Prognosis for Patients Treated with Neoadjuvant Chemotherapy for Esophageal Squamous Cell Carcinoma. AB - BACKGROUND: Autophagy plays a major role in cellular homeostasis and is implicated in cancer progression. Damaged mitochondria are scavenged and eliminated by mitochondrial autophagy, referred to as mitophagy, which can promote cancer cell survival. This study investigated the expression and effects of the autophagy-related protein LC3 and the mitophagy-related protein Pink1 in human esophageal squamous cell carcinoma (ESCC). METHODS: Both LC3 and Pink1 were analyzed by immunohistochemistry in tissues from 217 ESCC patients, including 159 patients undergoing neoadjuvant chemotherapy. The relationships between LC3 and Pink1 expression and various clinicopathologic factors were determined. In vitro assays were performed to assess the role of LC3 and Pink1 in ESCC chemoresistance. RESULTS: High LC3 expression was observed in 47.9% and high Pink1 expression in 48.4% of the ESCC patients. Pink1 expression was significantly higher in patients who underwent chemotherapy than in patients who did not (p = 0.032). High LC3 and Pink1 expression was significantly correlated with poor response to chemotherapy (p = 0.004 and p < 0.001, respectively), and high expression of Pink1, but not LC3, was significantly correlated with a poor prognosis for patients treated with preoperative chemotherapy (p = 0.007). Multivariate analysis identified Pink1 expression as an independent prognostic factor (p = 0.042). In vitro assays demonstrated that LC3-II and Pink1 expression increased after chemotherapeutic treatment in the ESCC cell line, and inhibition of autophagy and mitophagy using chloroquine and siPink1, respectively, restored chemosensitivity. CONCLUSIONS: High expression of Pink1 is associated with chemoresistance and a poor prognosis for ESCC patients undergoing neoadjuvant chemotherapy. PMID- 29022202 TI - Clove oil induces anaesthesia and blunts muscle contraction power in three Amazon fish species. AB - Clove oil is used as an anaesthetic for many species of fish worldwide; however, relatively few studies have assessed its effectiveness on Amazon fish species and no compelling evidence has ever been reported on the relaxant properties of this oil for skeletal muscle of fish. Thus, the objective of this study was to evaluate the latencies to deep anaesthesia and recovery, along with the myorelaxant effect of clove oil on three Amazon fish species: cardinal tetra, Paracheirodon axelrodi, banded cichlid, Heros severus and angelfish, Pterophyllum scalare, submitted to short-term anaesthetic baths. Fish were assayed in three groups of 60 fish each and individually anaesthetized in a completely randomized design with six clove oil concentrations using 10 fish/species/concentration. Electromyographic recordings from dorsal muscle were performed during stages of induction and recovery in which nine fish/species/stage were used. Deep anaesthesia was attained for all concentrations tested, and no mortalities were observed throughout the experiments and after a 48-h observation period. Concentration of 90 MUL L-1 and above promoted fast deep anaesthesia (< 3 min) and calm recovery in angelfish and cardinal tetra, whereas the concentration of 60 MUL L-1 sufficed to quickly anaesthetize banded cichlid. Times to full recovery were not significantly contrasting among species and occurred within appropriate time threshold (< 5 min). Clove oil exerted a conspicuous depression of muscle contraction power, and therefore can be effectively used as a muscle relaxant agent for P. scalare, P. axelrodi, H. severus and potentially, for other fish species. PMID- 29022201 TI - Increased mean platelet volume (MPV) is an independent predictor of inferior survival in patients with primary and secondary myelofibrosis. AB - Neoplastic megakaryopoiesis is a dominant feature of Philadelphia-chromosome negative myeloproliferative neoplasms (Ph- MPNs), and elevated mean-platelet volume (MPV) is a common finding in these diseases. The clinical and prognostic significances of MPV in patients with primary (PMF) and secondary myelofibrosis (SMF) have not been reported. We retrospectively analyzed 87 patients with myelofibrosis (66 with PMF, 21 with SMF) treated at our institution. MPV was recorded in addition to other hematological and clinical parameters. MPV was elevated in both PMF and SMF patients in comparison to controls, whereas there was no statistically significant difference between PMF and SMF. Elevated MPV was associated with lower platelets (P = 0.016), higher white blood cells (P = 0.015), higher percentage of circulatory blasts (P = 0.009), higher lactate dehydrogenase (P = 0.011), larger spleen size (P = 0.014) and higher Dynamic International Prognostic score category (P = 0.027), while there was no statistically significant association with driver mutations or degree of bone marrow fibrosis. Higher MPV was univariately associated with inferior overall survival in the whole cohort (HR = 3.82, P = 0.006), PMF (HR = 4.35, P = 0.007) and SMF patients (HR = 7.22, P = 0.034). These associations remained significant in multivariate analyses adjusted for DIPSS. Higher MPV is associated with more aggressive disease features and exhibits powerful independent prognostic properties in both PMF and SMF settings. PMID- 29022203 TI - Modeling the Dynamics of Heterogeneity of Solid Tumors in Response to Chemotherapy. AB - In this paper, we extend the model of the dynamics of drug resistance in a solid tumor that was introduced by Lorz et al. (Bull Math Biol 77:1-22, 2015). Similarly to the original, radially symmetric model, the quantities we follow depend on a phenotype variable that corresponds to the level of drug resistance. The original model is modified in three ways: (i) We consider a more general growth term that takes into account the sensitivity of resistance level to high drug dosage. (ii) We add a diffusion term in space for the cancer cells and adjust all diffusion terms (for the nutrients and for the drugs) so that the permeability of the resource and drug is limited by the cell concentration. (iii) We add a mutation term with a mutation kernel that corresponds to mutations that occur regularly or rarely. We study the dynamics of the emerging resistance of the cancer cells under continuous infusion and on-off infusion of cytotoxic and cytostatic drugs. While the original Lorz model has an asymptotic profile in which the cancer cells are either fully resistant or fully sensitive, our model allows the emergence of partial resistance levels. We show that increased drug concentrations are correlated with delayed relapse. However, when the cancer relapses, more resistant traits are selected. We further show that an on-off drug infusion also selects for more resistant traits when compared with a continuous drug infusion of identical total drug concentrations. Under certain conditions, our model predicts the emergence of a heterogeneous tumor in which cancer cells of different resistance levels coexist in different areas in space. PMID- 29022204 TI - The relationship between single and two-dimensional indices of left ventricular size using hemodynamic transesophageal echocardiography in trauma and burn patients. AB - BACKGROUND: Conventional echocardiographic technique for assessment of volume status and cardiac contractility utilizes left ventricular end-diastolic area (LVEDA) and fractional area of change (FAC), respectively. Our goal was to find a technically reliable yet faster technique to evaluate volume status and contractility by measuring left ventricular end-diastolic diameter (LVEDD) and fractional shortening (FS) in a cohort of mechanically ventilated trauma and burn patients using hemodynamic transesophageal echocardiographic (hTEE) monitoring. METHODS: Retrospective chart review performed at trauma/burn intensive care unit (TBICU). Data on 88 mechanically ventilated surgical intensive care patients cared for between July 2013 and July 2015 were reviewed. Initial measurements of LVEDA, left ventricular end-systolic area (LVESA) and FAC were collected. Post processing left ventricular end-systolic (LVESD) and end-diastolic diameters (LVEDD) were measured and fractional shortening (FS) was calculated. Two orthogonal measurements of LV diameter were obtained in transverse (Tr) and posteroanterior (PA) orientation. RESULTS: There was a significant correlation between transverse and posteroanterior left ventricular diameter measurements in both systole and diastole. In systole, r = 0.92, p < 0.01 for LVESD-Tr (mean 23.47 mm, SD +/- 6.77) and LVESD-PA (mean 24.84 mm, SD = 8.23). In diastole, r = 0.80, p < 0.01 for LVEDD-Tr (mean 37.60 mm, SD +/- 6.45), and LVEDD-PA diameters (mean 42.24 mm, SD +/- 7.97). Left ventricular area (LVEDA) also significantly correlated with left ventricular diameter LVEDD-Tr (r = 0.84, p < 0.01) and LVEDD PA (r = 0.90, p < 0.01). Both transverse and PA measurements of fractional shortening were significantly (p < 0.0001) and similarly correlated with systolic function as measured by FAC. Bland-Altman analyses also indicated that the assessment of fractional shortening using left ventricular posteroanterior diameter measurement shows agreement with FAC. CONCLUSIONS: Left ventricular diameter measurements are a reliable and technically feasible alternative to left ventricular area measurements in the assessment of cardiac filling and systolic function. PMID- 29022205 TI - Development of FOCUS-GC: Framework for Outcomes of Clinical Communication Services in Genetic Counseling. AB - Conceptual frameworks bring together existing theories and models in order to identify, consolidate, and fill in gaps between theory, practice, and evidence. Given the vast number of possible outcomes that could be studied in genetic counseling, a framework for organizing outcomes and postulating relationships between communication services and genetic counseling outcomes was sought. Through an iterative approach involving literature review, thematic analysis, and consolidation, outcomes and processes were categorized to create and define components of a conceptual framework. The final product, "Framework for Outcomes of Clinical commUnication Services" (FOCUS) contains the following domains: communication strategy; communication process measures; patient care experience, patient changes, patient health; and family changes. A website was created to allow easier access and ongoing modifications to the framework. In addition, a step-by-step guide and two examples were created to show flexibility in how the framework can be used. FOCUS may help in conceptualizing, organizing and summarizing outcomes research related to risk communication and counseling in genetic service delivery as well as other healthcare settings. PMID- 29022206 TI - Effect of an alkaline environment on the engineering behavior of cement stabilized/solidified Zn-contaminated soils. AB - Although the stabilization/solidification method has been widely used for remediation of heavy metal-contaminated soils in recent decades, the engineering behavior and mobility of heavy metal ions under alkaline groundwater conditions are still unclear. Therefore, the unconfined compressive strength test (UCS) combined with toxicity characteristic leaching procedure (TCLP) and general acid neutralization capacity (GANC) was used to investigate the effects of alkalinity (using NaOH to simulate alkalinity in the environment) on the mechanical and leaching characteristics of cement-solidified/stabilized (S/S) Zn-contaminated soils. Moreover, the microstructure was analyzed using the scanning electron microscope (SEM) technology. The results indicated that alkaline environment could accelerate the UCS development compared with specimens without soaking in NaOH solution,, regardless of whether the specimens contained Zn2+ or not. And the UCS varied obviously attributed to the variations of both NaOH concentration and soaking time. Except for the specimens soaked for 90 days, the leached Zn2+ concentrations were higher than that of without soaking. However, the leachability of Zn2+ in all the stabilized specimens is in the regulatory level. ANC results indicated that the Zn2+ leaching behavior can be divided into three stages related to the initial leachate pH. Moreover, SEM results proved that the alkaline environment could actually facilitate the cement hydration process. The results proved in the present paper could be useful in treating the heavy metal contaminated soils involved in the solidification/stabilization technology under alkaline environment. PMID- 29022207 TI - Mite diversity (Acari: Tetranychidae, Tydeidae, Iolinidae, Phytoseiidae) and within-tree distribution in citrus orchards in southern Spain, with special reference to Eutetranychus orientalis. AB - Mite diversity of selected citrus orchards in Andalusia (southern Spain) was studied during 2002-2007. The following species were found: Eutetranychus orientalis, Tetranychus urticae, Panonychus citri (Tetranychidae), Tydeus californicus, Lorryia formosa (Tydeidae), Pronematus ubiquitus (Iolinidae), Euseius stipulatus, Typhlodromus phialatus, Neoseiulus californicus, Euseius scutalis, Phytoseiulus persimilis, Paraseiulus talbii and Neoseiulus cucumeris (Phytoseiidae). Eutetranychus orientalis was the dominant tetranychid species in orange and lemon trees, whereas T. urticae was slightly more abundant in mandarines. The most abundant tydeid in clementine and orange was Tydeus californicus, in lemon it was L. formosa. The iolinid P. ubiquitus was found in very low numbers. With respect to phytoseiids, E. stipulatus was dominant in the three citrus species. Eutetranychus orientalis had a unimodal phenology, peaking only in autumn, whereas the other two tetranychids had two maxima. Tydeus californicus showed one or two peaks depending upon the citrus species, and E. stipulatus also had two peaks, one in spring and one in autumn. The mites displayed a non-random distribution in the tree. Eutetranychus orientalis preferred the outer and upper leaves. On the contrary, tydeids (mainly T. californicus) and phytoseiids (mainly E. stipulatus) preferred inner and lower leaves. These preferences had not been sufficiently described previously, and they are important for sampling plans. PMID- 29022208 TI - Hijacking cellular signals. PMID- 29022209 TI - Therapeutic doses of doxorubicin induce premature senescence of human mesenchymal stem cells derived from menstrual blood, bone marrow and adipose tissue. AB - Doxorubicin (Dox) is an effective anticancer drug with known activity against a wide spectrum of malignancies, hematologic malignancies in particular. Despite extensive clinical use, the mechanisms of its side effects and negative action on normal cells remain under study. The aim of this study was to investigate the effect of Dox on cultured human mesenchymal stem cells (MSCs) derived from menstrual blood (eMSCs), bone marrow (BMSCs) and adipose tissue (AMSCs). Dox treatment in high doses decreased the survival of MSCs in a dose-dependent manner. Clinically relevant low doses of Dox induced premature senescence of eMSCs, BMSCs and AMSCs, but did not kill the cells. Dox caused cell cycle arrest and formation of gamma-H2AX foci, and increased the number of SA-beta-gal positive cells. BMSCs entered premature senescence earlier than other MSCs. It has been reported that neural-like cells differentiated from MSCs of various origins are more sensitive to Dox than their parent cells. Dox-treated differentiated MSCs exhibited lower viability and earlier generation of gamma H2AX foci. Dox administration inhibited secretory activity in neural-like cells. These findings suggest that a clinically relevant Dox dose damages cultured MSCs, inducing their premature senescence. MSCs are more resistant to this damage than differentiated cells. PMID- 29022210 TI - Reducing catheter-related thrombosis using a risk reduction tool centered on catheter to vessel ratio. AB - In vascular access practices, the internal vessel size is considered important, and a catheter to vessel ratio (CVR) is recommended to assist clinicians in selecting the most appropriate-sized device for the vessel. In 2016, new practice recommendations stated that the CVR can increase from 33 to 45% of the vessels diameter. There has been evidence on larger diameter catheters and increased thrombosis risk in recent literature, while insufficient information established on what relationship to vessel size is appropriate for any intra-vascular device. Earlier references to clinical standards and guidelines did not clearly address vessel size in relation to the area consumed or external catheter diameter. The aim of this manuscript is to present catheter-related thrombosis evidence and develop a standardized process of ultrasound-guided vessel assessment, integrating CVR, Virchow's triad phenomenon and vessel health and preservation strategies, empowering an evidence-based approach to device placement. Through review, calculation and assessment on the areas of the 33 and 45% rule, a preliminary clinical tool was developed to assist clinicians make cognizant decisions when placing intravascular devices relating to target vessel size, focusing on potential reduction in catheter-related thrombosis. Increasing the understanding and utilization of CVRs will lead to a safer, more consistent approach to device placement, with potential thrombosis reduction strategies. The future of evidence-based data relies on the clinician to capture accurate vessel measurements and device-related outcomes. This will lead to a more dependable data pool, driving the relationship of catheter-related thrombosis and vascular assessment. PMID- 29022211 TI - Subjective Global Nutritional Assessment: A Reliable Screening Tool for Nutritional Assessment in Cerebral Palsy Children. AB - OBJECTIVE: To determine the prevalence of undernutrition in children with cerebral palsy and to compare subjective and objective methods of nutritional assessment. METHODS: This was a hospital based analytical observational study in which 180 children of cerebral palsy, aged 1-12 y, attending tertiary level hospital, Jaipur from March, 2012 through March, 2013 were included. Subjective assessment was done by questionnaire (Subjective Global Nutritional Assessment; SGNA) in which questions related to nutrition history and physical examination, signs of fat, muscle wasting and edema was done while objective assessment was done by weight, height and triceps skinfold thickness (TSFT) measurements. RESULTS: In this study prevalence of undernutrition by subjective method (SGNA) was 76.67% while by objective measurement (weight, height, TSFT) was 48.89%, 77.78% 35.18% respectively. There was fair to moderate agreement between the SGNA and objective assessments including weight and height (k = 0.341, p = 0.000; k = 0.337, p = 0.000 respectively) while for TSFT agreement between both methods was poor (k = 0.092, p = 0.190). In the index study, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of SGNA was for weight was 95%, 37%, 56%, 90%; for height 84%, 50%, 85%, 47%; for TSFT 81%, 30%, 38%, 75% respectively. CONCLUSIONS: The prevalence of undernutrition is high in cerebral palsy children. SGNA can be a reliable tool for assessing nutritional status in children with cerebral palsy and is a simple, comprehensive, noninvasive, and cost-effective tool for screening undernutrition in children of cerebral palsy. PMID- 29022212 TI - Effect of Food on the Pharmacokinetics of Saroglitazar Magnesium, a Novel Dual PPARalphagamma Agonist, in Healthy Adult Subjects. AB - BACKGROUND AND OBJECTIVE: Peroxisome proliferator-activated receptors (PPARs) have recently become a focus of interest for their important roles in glucose and lipid metabolism. In humans, PPARalpha activation causes a decrease in plasma triglyceride (TG) levels, enhancement of high-density lipoprotein cholesterol (HDL-C) and simultaneous enhancement of very-low-density lipoprotein (VLDL) lipolysis, whereas PPARgamma agonists act as insulin sensitizers and improve insulin resistance, which is very useful in patients with type 2 diabetes mellitus (T2DM). Saroglitazar magnesium is a dual PPAR agonist with potent predominant PPARalpha and moderate PPARgamma activity and the first glitazar to be granted marketing authorization in India. This study was conducted to evaluate the oral bioavailability and safety and tolerability of a LipaglynTM (saroglitazar magnesium) 4-mg tablet in healthy, adult human subjects under fed relative to fasting conditions. METHODS: This was a single-dose, open-label, randomized, single-treatment, two-period, two-conditions (fed vs. fasting), two sequence, crossover study planned in 54 healthy subjects. Food effect (high calorie and high-fat breakfast) was examined by comparing pharmacokinetic data of saroglitazar and its metabolite saroglitazar sulfoxide in plasma samples collected pre-dose and serially up to 72 h post-dose. Pharmacokinetic data were analyzed using the standard non-compartmental approach. RESULTS: A total of 54 subjects were enrolled in the study, out of them 50 subjects had completed the study and were analyzed. The presence of food had a minor impact on the disposition of saroglitazar. While food reduced C max (maximum concentration) of saroglitazar by 30%, the extent of absorption as measured by AUCinfinity (area under the concentration time curve from time zero to infinity) was not influenced. This was further supported by the bioequivalence data between fasted and fed conditions for saroglitazar, where 90% CIs (confidence intervals) of the adjusted geometric mean of the fed relative to the fasted condition ranged from 101.37% to 108.07% for AUCinfinity and from 63.45% to 74.68% for C max. Other parameters such as T max (time of maximum concentration) and T 1/2 (elimination half-life) were not influenced by the food intake. Saroglitazar was well tolerated in the study, and the reported adverse events were mild in nature. CONCLUSION: For the single-dose study, the absorption rate is affected by food as the 90% CI of C max is outside 80.00-125.00%. However, there is no impact of food on the extent of absorption of saroglitazar. The observed lower C max of saroglitazar with food has no clinical relevance since the therapeutic efficacy of saroglitazar was achieved after multiple-dose administration, suggesting the importance of total exposure. PMID- 29022213 TI - High prevalence of heparin induced thrombocytopenia with thrombosis among patients with essential thrombocytemia carrying V617F mutation. AB - Arterial and venous complications are major causes of morbidity and mortality in myeloproliferative neoplasms (MPNs). MPNs patients, frequently receive heparin. Heparin-induced thrombocytopenia (HIT) is a rare but potentially life-threatening complication resulting in a severe acquired thrombophilic condition. We carried out a retrospective analysis to evaluate occurrence of new thrombotic events during heparin therapy in essential thrombocythemia (ET) patients. We studied 108 ET patients on heparin for treatment of previous thrombotic events or in thromboprophilaxis. Fifty-eight of them carried JAK 2 V617F mutation while 50 patients were without V617F mutation. Ten patients, among those with JAK 2 V617F mutation after a median of 10 days from heparin treatment presented a platelet drop, new thrombotic events and in 10/10 cases heparin-related antibodies were found. In the other group, two patients (4%) presented a platelet drop, thrombotic manifestations and heparin related antibodies. Our data show that HIT is more frequent, during heparin treatment, in patients with ET carrying V617F mutation, as compared with patients without mutations (P = 0.029). ET with V617F mutation seems to be associated with higher risk of thrombotic complications during heparin treatment. Monitoring platelet counts very closely during the course of heparin is essential especially in ET patients in which platelet drop may be hidden by constitutional thrombocytosis. PMID- 29022214 TI - Two new species of Trouessartia Canestrini, 1899 (Astigmata: Trouessartiidae) from passeriform birds in Brazil. AB - Two new feather mite species of the genus Trouessartia Canestrini, 1899 (Analgoidea: Trouessartiidae) are described from passerines (Aves: Passeriformes) in Brazil: T. calcealgiana n. sp. from Philydor atricapillus (Wied) (Furnariidae), and T. gigaphallus n. sp. from Tyrannus melancholicus Vieillot (Tyrannidae). Both species have unique features, such as the large hook-like seta sR on trochanters III in T. calcealgiana, and the large male genitalia in T. gigaphallus, which are at least twice as long as normally found in most species of Trouessartia. PMID- 29022215 TI - Effectiveness of a new dental implant bioactive surface: histological and histomorphometric comparative study in minipigs. AB - OBJECTIVES: The objective of this study was to assess, by histomorphometric analysis, the degree of bone apposition on two types of dental implant's surfaces: a novel implant that combines Al2O3 abrasive particle blasting with thermochemical treatment (ContacTi), compared to a standard surface treatment obtained by sandblasting and acid etching (shot blasting). MATERIALS AND METHODS: Twelve minipigs were used, placing the studied implants in the maxillae, and divided into three groups according to the time of sacrifice: 2, 4, and 8 weeks after implant placement. Histological and histomorphometric analyses were performed following standardized tissue polymerization, cutting, and staining and examined under optical and high-resolution electron microscope. RESULTS: For all measurements, the novel surface presented higher levels of osseointegration as compared to the shot blasting surface. Bone to implant contact (BIC) in the maxillae for ContacTi presented values of 49.02, 83.20, and 85.58% at 2, 4, and 8 weeks, respectively, significantly higher compared to the shot blasting surface values of 39.32, 46.53, and 46.20% for the same time points. Bone area density (BAD) presented values of 26.52, 61.21, and 59.50% for ContacTi surface implants and 22.95, 36.26, and 49.50% for the shot blasted surface implants. Signs of osteoconductivity were observed in the ContacTi surfaces at 2 weeks. CONCLUSIONS: The ContacTi surface achieved a faster growth of hard tissues around the implants, when compared to the shot blasting surface, and for all evaluated histomorphometric parameters, the values were higher at all measured time points. CLINICAL RELEVANCE: ContacTi could be a new surface improving the osseointegration in oral implantology. PMID- 29022216 TI - Initial evaluation of the Celesteion large-bore PET/CT scanner in accordance with the NEMA NU2-2012 standard and the Japanese guideline for oncology FDG PET/CT data acquisition protocol version 2.0. AB - BACKGROUND: The goal of this study was to evaluate the performance of the Celesteion positron emission tomography/computed tomography (PET/CT) scanner, which is characterized by a large-bore and time-of-flight (TOF) function, in accordance with the NEMA NU-2 2012 standard and version 2.0 of the Japanese guideline for oncology fluorodeoxyglucose PET/CT data acquisition protocol. Spatial resolution, sensitivity, count rate characteristic, scatter fraction, energy resolution, TOF timing resolution, and image quality were evaluated according to the NEMA NU-2 2012 standard. Phantom experiments were performed using 18F-solution and an IEC body phantom of the type described in the NEMA NU-2 2012 standard. The minimum scanning time required for the detection of a 10-mm hot sphere with a 4:1 target-to-background ratio, the phantom noise equivalent count (NECphantom), % background variability (N 10mm), % contrast (Q H,10mm), and recovery coefficient (RC) were calculated according to the Japanese guideline. RESULTS: The measured spatial resolution ranged from 4.5- to 5-mm full width at half maximum (FWHM). The sensitivity and scatter fraction were 3.8 cps/kBq and 37.3%, respectively. The peak noise-equivalent count rate was 70 kcps in the presence of 29.6 kBq mL-1 in the phantom. The system energy resolution was 12.4% and the TOF timing resolution was 411 ps at FWHM. Minimum scanning times of 2, 7, 6, and 2 min per bed position, respectively, are recommended for visual score, noise-equivalent count (NEC)phantom, N 10mm, and the Q H,10mm to N 10mm ratio (QNR) by the Japanese guideline. The RC of a 10-mm-diameter sphere was 0.49, which exceeded the minimum recommended value. CONCLUSIONS: The Celesteion large bore PET/CT system had low sensitivity and NEC, but good spatial and time resolution when compared to other PET/CT scanners. The QNR met the recommended values of the Japanese guideline even at 2 min. The Celesteion is therefore thought to provide acceptable image quality with 2 min/bed position acquisition, which is the most common scan protocol in Japan. PMID- 29022217 TI - Sepsis: A Review of Advances in Management. AB - Infections represent a common health problem in people of all ages. Usually, the response given to them is appropriate and so little treatment is needed. Sometimes, however, the response to the infection is inadequate and may lead to organ dysfunction; this is the condition known as sepsis. Sepsis can be caused by bacteria, fungi or viruses and at present there is no specific treatment; its management basically focuses on containing the infection through source control and antibiotics plus organ function support. This article reviews key elements of sepsis management, focusing on diagnosis, biomarkers and therapy. The main recent advance in therapy is the strategy of personalized medicine, based on a precise approach using biomarkers to identify specific individuals who are likely to benefit from more personalized attention. PMID- 29022219 TI - Photoreduction of Cr(VI) in water using BiVO4-Fe3O4 nano-photocatalyst under visible light irradiation. AB - The residuals of hexavalent chromium in the aquatic environment have raised much concern for water decontamination. In this study, BiVO4-Fe3O4 was synthesized using a solvothermal method and adopted as a photoreduction catalyst to removal of Cr(VI) in water under visible light irradiation. The physical and chemical properties of BiVO4-Fe3O4 were characterized by UV-vis-DRS, SEM, XRD, FTIR, and BET. The results demonstrated that the band gap for the obtained material is 1.74 eV with an average size of 15 nm and a specific surface area of 55.16 m2/g. A high photocatalytic performance was observed on the photoreduction of Cr(VI) and the removal efficiency was increased in the lower pH condition. The ascending catalyst dosages made the promotion effect, while the increase of Cr(VI) concentration contributed the inhibition for the reduction performance. The structural characteristics of the selected hole scavengers (ethanol, isopropanol, formic acid, citric acid, and oxalic acid) showed the various effects on the reactions due to the amounts of alpha-OH. For the optimal condition, 79.37% Cr(VI) was removed. Based on the excellent reusability of BiVO4-Fe3O4, this study demonstrated a potential method for the economic-friendly removal of high-valence metals with easier separation in the water. PMID- 29022221 TI - Eating disorder symptoms and the 2 * 2 model of perfectionism: mixed perfectionism is the most maladaptive combination. AB - PURPOSE: The 2 * 2 model of perfectionism (Gaudreau and Thompson in Personal Individ Diff 48:532-537, 2010) represents an important addition to the perfectionism literature, but so far has not been studied in relation with disordered eating. METHOD: Using the 2 * 2 model as analytic framework, this study examined responses from a convenience sample of 716 participants aged 19-68 years (71% female) investigating how self-oriented perfectionism (SOP) and socially prescribed perfectionism (SPP) predicted individual differences in eating disorder symptoms, additionally controlling for body mass index, gender, and age. RESULTS: Results showed a significant SOP * SPP interaction indicating that the combination of high SOP and high SPP-called "mixed perfectionism"-was associated with the highest levels of eating disorder symptoms. CONCLUSIONS: The findings demonstrate the utility of the 2 * 2 model of perfectionism as an analytic framework for examining perfectionism and disordered eating. Moreover, they suggest that mixed perfectionism is the most maladaptive form of perfectionism when it comes to disordered eating, such that having high levels of SPP combined with high levels of SOP represents the most maladaptive combination of perfectionism in terms of risk of eating disorder. LEVEL OF EVIDENCE: Level V, cross-sectional descriptive study. PMID- 29022218 TI - An examination of the mechanisms and personality traits underlying food addiction among individuals with severe obesity awaiting bariatric surgery. AB - PURPOSE: The aetiology underlying addiction has often been investigated to shed more light on the factors contributing to the development and maintenance of various disorders. In the field of addictive eating behaviours, data on the aetiological factors related to food addiction (FA) in the bariatric context remain scarce. The present study aimed to explore mechanisms and variables underlying FA among individuals suffering from severe obesity and awaiting bariatric surgery. METHODS: Participants (N = 146) were recruited at the Quebec Heart and Lung Institute during their pre-operative visit and were invited to complete questionnaires. Participants with and without FA were compared on reward sensitivity, impulsivity, emotion dysregulation, and personality traits. RESULTS: Findings showed that bariatric candidates with FA (16%) presented more emotion dysregulation, more harm avoidance, and less self-directedness. Further exploration showed that the association between harm avoidance and the number of FA criteria endorsed was mediated by emotion dysregulation, while the association between self-directedness and the number of FA criteria endorsed was mediated by reward sensitivity. CONCLUSIONS: These results indicate that an inability to regulate affect by strategies other than eating highly palatable food, in a context where negative affect and long-term goals can hardly be sustained, underlies a diagnostic of FA among bariatric candidates. From a clinical standpoint, the presence of a double vulnerability leading to FA symptomatology could help design better-targeted interventions to maximise weight loss maintenance in the bariatric context. LEVEL OF EVIDENCE: Level V, descriptive study. PMID- 29022220 TI - An overview of concepts and approaches used in estimating the burden of congenital disorders globally. AB - Congenital disorders are an important cause of pregnancy loss, premature death and life-long disability. A range of interventions can greatly reduce their burden, but the absence of local epidemiological data on their prevalence and the impact of interventions impede policy and service development in many countries. In an attempt to overcome these deficiencies, we have developed a tool-The Modell Global Database of Congenital Disorders (MGDb) that combines general biological principles and available observational data with demographic data, to generate estimates of the birth prevalence and effects of interventions on mortality and disability due to congenital disorders. MGDb aims to support policy development by generating country, regional and global epidemiological estimates. Here we provide an overview of the concepts and methodological approach used to develop MGDb. PMID- 29022223 TI - Acute kidney injury in pregnancy and the role of underlying CKD: a point of view from Mexico. AB - The incidence of acute kidney injury in pregnancy (P-AKI) in developed countries is significantly lower than in developing ones, where it is estimated to range between 4 and 26%. Mortality in cases of P-AKI requiring dialysis is high, varying from 20 to 80%. In developing countries, clinical decisions are often based on the availability of services and not on needs. Prenatal surveillance in Mexico does not include serum creatinine, limiting the potential for early diagnosis of AKI and CKD and their differential diagnosis. There are few specialized centers for the care of a pregnancy complicated with kidney disease in Mexico. P-AKI superimposed on preexistent, and usually undiagnosed CKD, is common: in Guadalajara 10 out of the 27 patients with Stage 3-5 CKD or nephrotic proteinuria, that were followed in 2013-2015, required renal replacement therapy (RRT) in pregnancy; in the same period in Mexico City out of 18 patients with P AKI requiring dialysis, 5 remained dialysis dependent, 3 started dialysis in the following year after their pregnancy and only 1 fully recovered renal function. The grim prognosis is exacerbated by the fact that 70% of Mexicans are not reimbursed for dialysis, and pregnancy-related coverage lasts for only 42 days after delivery. Perinatal results are no less troubling, as most patients with P AKI give birth preterm to small or very small babies. While our data do not allow us to evaluate needs, they do make it possible to define the complexity of the problems faced in the care of P-AKI in Mexico. Early diagnosis of P-AKI and chronic kidney disease (CKD) is needed to protect mothers and children and the country urgently needs programs to enable it to fulfil the World Health Organization's imperative that we "make every mother and child count". PMID- 29022224 TI - Prepulse Inhibition of Auditory Cortical Responses in the Caudolateral Superior Temporal Gyrus in Macaca mulatta. AB - Prepulse inhibition (PPI) refers to a decreased response to a startling stimulus when another weaker stimulus precedes it. Most PPI studies have focused on the physiological startle reflex and fewer have reported the PPI of cortical responses. We recorded local field potentials (LFPs) in four monkeys and investigated whether the PPI of auditory cortical responses (alpha, beta, and gamma oscillations and evoked potentials) can be demonstrated in the caudolateral belt of the superior temporal gyrus (STGcb). We also investigated whether the presence of a conspecific, which draws attention away from the auditory stimuli, affects the PPI of auditory cortical responses. The PPI paradigm consisted of Pulse-only and Prepulse + Pulse trials that were presented randomly while the monkey was alone (ALONE) and while another monkey was present in the same room (ACCOMP). The LFPs to the Pulse were significantly suppressed by the Prepulse thus, demonstrating PPI of cortical responses in the STGcb. The PPI-related inhibition of the N1 amplitude of the evoked responses and cortical oscillations to the Pulse were not affected by the presence of a conspecific. In contrast, gamma oscillations and the amplitude of the N1 response to Pulse-only were suppressed in the ACCOMP condition compared to the ALONE condition. These findings demonstrate PPI in the monkey STGcb and suggest that the PPI of auditory cortical responses in the monkey STGcb is a pre-attentive inhibitory process that is independent of attentional modulation. PMID- 29022226 TI - Parents' and Physicians' Perceptions of Children's Participation in Decision making in Paediatric Oncology: A Quantitative Study. AB - The goal is to present how shared decision-making in paediatric oncology occurs from the viewpoints of parents and physicians. Eight Swiss Pediatric Oncology Group centres participated in this prospective study. The sample comprised a parent and physician of the minor patient (<18 years). Surveys were statistically analysed by comparing physicians' and parents' perspectives and by evaluating factors associated with children's actual involvement. Perspectives of ninety-one parents and twenty physicians were obtained for 151 children. Results indicate that for six aspects of information provision examined, parents' and physicians' perceptions differed. Moreover, parents felt that the children were more competent to understand diagnosis and prognosis, assessed the disease of the children as worse, and reported higher satisfaction with decision-making on the part of the children. A patient's age and gender predicted involvement. Older children and girls were more likely to be involved. In the decision-making process, parents held a less active role than they actually wanted. Physicians should take measures to ensure that provided information is understood correctly. Furthermore, they should work towards creating awareness for systematic differences between parents and physicians with respect to the perception of the child, the disease, and shared decision-making. PMID- 29022229 TI - Luciano Martini (1927-2017): a memoir. PMID- 29022227 TI - Giving Back to Families: Evidence and Predictors of Persons with Serious Mental Illness Contributing Help and Support to Families. AB - Persons with serious mental illness (SMI) often rely on family for significant assistance and support, but the contributions made by persons with SMI to their families have been overlooked. This study assessed the extent to which persons with SMI contribute help or support to their families and identified significant predictors of contribution using an analysis of 1 year of clinicians' electronic health record (EHR) notes. EHR notes with reference to families of 226 Veterans with SMI were extracted and classified as suggesting help being given to and/or received from families. Forty-one percent of the sample contributed to family in a variety of ways. More frequent contact with family and being female were significant predictors of contribution. This study underlines the potential for reciprocal relationships within families of individuals with SMI. Clinicians can help clients and families maximize the support they provide to one another and possibly improve outcomes. PMID- 29022228 TI - The development and treatment of a food phobia after bariatric surgery. PMID- 29022230 TI - Prof. Gian Franco Bottazzo MD FRCP FRCPath (1946-2017). PMID- 29022222 TI - T Cell Receptor Profiling in Type 1 Diabetes. AB - PURPOSE OF REVIEW: The genetic susceptibility and dominant protection for type 1 diabetes (T1D) associated with human leukocyte antigen (HLA) haplotypes, along with minor risk variants, have long been thought to shape the T cell receptor (TCR) repertoire and eventual phenotype of autoreactive T cells that mediate beta cell destruction. While autoantibodies provide robust markers of disease progression, early studies tracking autoreactive T cells largely failed to achieve clinical utility. RECENT FINDINGS: Advances in acquisition of pancreata and islets from T1D organ donors have facilitated studies of T cells isolated from the target tissues. Immunosequencing of TCR alpha/beta-chain complementarity determining regions, along with transcriptional profiling, offers the potential to transform biomarker discovery. Herein, we review recent studies characterizing the autoreactive TCR signature in T1D, emerging technologies, and the challenges and opportunities associated with tracking TCR molecular profiles during the natural history of T1D. PMID- 29022231 TI - Calcium Channel Blockers for the Clinical Management of Hypertension. PMID- 29022232 TI - A case of fatal perimyocarditis due to a rare disease. AB - Although myocarditis is caused by viral infections in about 50% of cases in European countries, various other causative agents are known. We report the case of a 51-year-old man who died several months after being diagnosed with asthma by his general practitioner. This diagnosis had been confirmed by a pulmonologist approximately 6 weeks before the man's death. To rule out the possibility of medical malpractice the prosecuting authority ordered a forensic autopsy. At autopsy macroscopic indicators for perimyocarditis and pneumonia were found. Microbiological and histological examination of tissue samples confirmed a diagnosis of Churg-Strauss syndrome, also known as Eosinophilic Granulomatosis with Polyangiitis (EGPA). The cause of death was determined to be cardiac involvement in Churg-Strauss syndrome. The presence of this disease also accounted for the man's recent medical history. There were no findings to indicate that a medical error had been made. The reported case illustrates why accessory histological and microbiological examinations should always be performed when macroscopic findings at autopsy suggest myocarditis. Determining the etiology of myocarditis is a necessary step to prevent overlooking rare diseases with inflammatory myocardial involvement, especially in the clarification of alleged medical malpractice. PMID- 29022233 TI - Unanticipated Cardiotoxicity Associated with Targeted Anticancer Therapy in Patients with Hematologic Malignancies Patients: Natural History and Risk Factors. AB - Our aim is to study unanticipated cardiotoxicity associated with the use of anticancer targeted agents, a problem that remains poorly understood. Using diagnosis codes, we retrospectively identified patients with both hematologic malignancies (HM) and cardiovascular diseases (n = 820 patients). Cardiotoxicity was defined per published criteria. The targeted agents of interest included tyrosine kinase inhibitors, proteasome inhibitors, monoclonal antibodies, and immunomodulatory agents. Patients found with cardiotoxicity (n = 29) were compared with 70 case-matched reference subjects. Median time from targeted therapy exposure to cardiotoxicity was 132 days. A higher percentage of patients had prior exposure to anthracyclines in study versus reference group (65.5 vs. 42.8%, P = 0.04), however, did not stay significant in multivariate analysis. Two variables were significant predictors, prior of DVT/PE and Karnofsky score of >= 80% (P <= 0.011). Only 2 study group patients died of cardiac causes. Most cardiotoxicity patients (23/29) had remained stable or improved, while 21 patients received further chemotherapy. OS was lower in the study group (P = 0.018) versus the reference group. In conclusion, a small number patients with HM experience unanticipated cardiotoxicity with low related mortality. Risk of cardiotoxicity was significantly associated with history of DVT/PE. Most patients do well, but despite that, their OS is significantly poorer. PMID- 29022234 TI - Selflessness as a predictor of remission from an eating disorder: 1-4 year outcomes from an adolescent day-care unit. AB - OBJECTIVE: To assess the potential role of selflessness in predicting remission from an eating disorder (ED) following discharge from an adolescent day-care unit. METHOD: Participants were 95 female patients (aged 13-19 years) with an ED diagnosis across the spectrum admitted to an adolescent day-care unit for EDs between 2008 and 2012. Forty-one of these participants completed the follow-up assessment, between 12 and 46 months following discharge. No significant differences were found in Time 1 variables between patients who participated in Time 2 and those who did not. At both time points, ED and psychiatric comorbidity diagnoses were made using standard structured interviews. Patients were also administered the Beck Depression Inventory (BDI), the State-Trait Anxiety Inventory (STAI), The Eating Attitude Test (EAT-26), The Eating Disorder Inventory (EDI-2) and the Selflessness Scale (SS)*. RESULTS: Only baseline Selflessness Scale was significant in predicting the continuous variable of ED symptomatology level in follow-up. When dividing EDI total score into its subscales at baseline, one of those, maturity fears, was found, together with the SS, significant in the prediction. In predicting remission (this time as a dichotomized variable) in follow-up, only the SS, maturity fears, EDI total, and EAT-26, at baseline, predicted remission at follow-up, but the strength of selflessness was the greatest. CONCLUSIONS: Psychological features are not the main target of the important search for predictors of remission from ED. The findings of the present study add the psychological feature of selflessness to this search. Psychotherapy can be enriched by identifying psychological features such as selflessness as one of its foci. The present findings might also renew interest in maturity fears as an additional focus in psychotherapy. LEVEL OF EVIDENCE: Level III, cohort study. PMID- 29022235 TI - Correction to: Meta-barcoding in combination with palynological inference is a potent diagnostic marker for honey floral composition. AB - In the version of this article that was originally published (Laha et al. 2017) the authors did not properly reference one paragraph in the Introduction section. PMID- 29022236 TI - The Protective Effect of Selenium on Bovine Mammary Epithelial Cell Injury Caused by Depression of Thioredoxin Reductase. AB - To elucidate the effect of selenium (Se) on antioxidant function of mammary glands in dairy cows and the underlying mechanism, an experiment was conducted using a single-factor completely randomized design study. Bovine mammary epithelial cells (BMECs) were randomly divided into four groups: control, Se treatment, 2,4-dinitrochlorobenzene (DNCB) inhibition, and Se prevention. Treatment of BMECs with Se was found to significantly reverse decreased cell proliferation and the expression of thioredoxin reductase (TrxR) after DNCB exposure. DNCB-induced activation of apoptosis signaling kinase-1 (ASK-1), which activates the mitogen-activated protein kinase (MAPK) pathway, was reduced in BMECs treated with Se. Additionally, our results indicated that Se treatment resulted in lower intracellular accumulation of arachidonic acid (ARA) and 15 hydroperoxyeicosatetraenoic acid (15-HPETE) due to suppressed expression of cytosolic phospholipase A2 (cPLA2) regulated by p38MAPK and c-Jun N-terminal kinase (JNK) in DNCB-stimulated BMECs. Taken together, these findings suggest that Se treatment improved the antioxidant function of dairy cow mammary glands and protected cells from oxidative damage primarily by increasing the activity of TrxR, inhibiting the activation of the MAPK signaling pathway, and thus decreasing the content of ARA and its related metabolites. PMID- 29022238 TI - Predicting the Happiness of Adolescents Based on Coping Styles and Religious Attitudes. AB - The study aimed to predict the happiness of adolescents based on coping styles and religious attitudes. To this end, the correlational research methodology was used. In total, 381 subjects were selected from adolescents of Semnan (Eastern province of Iran), using multistage clustering sampling method. Research tools were Ways of Coping Questionnaire by Lazarus, Golriz and Barahani's Religious Attitude Questionnaire, and Oxford Happiness Questionnaire. Data analysis was performed in SPSS using Pearson's correlation coefficient and multiple regression analysis. Results of Pearson's correlation demonstrated a significant positive relationship between happiness of adolescents and variables of problem-focused coping styles (r = 0.31, P < 0.01) and religious attitudes (r = 0.129, P < 0.05). Meanwhile, a negative significant association was observed between emotion focused coping styles and happiness (r = -0.184, P < 0.01). Moreover, results of multiple regression analysis indicated that the listed variables explained 17% of the variance of happiness in totality. According to the results, it is recommended that use of problem-focused styles be emphasized in addition to strengthening of religious attitudes to increase the happiness of adolescents. PMID- 29022237 TI - Dysfunction of Membrane Trafficking Leads to Ischemia-Reperfusion Injury After Transient Cerebral Ischemia. AB - Neurons require an extraordinarily high level of membrane trafficking activities because of enriched axonal terminals and dendritic branches. For that reason, defects in the membrane trafficking pathway are a hallmark of most, and may be all, neurodegenerative disorders. A major cellular membrane trafficking pathway is the Golgi apparatus (Golgi hereafter)-late endosome-lysosome axis for supplying lysosomal enzymes. This pathway is regulated by N-ethylmaleimide sensitive factor (NSF) ATPase. This review article is to discuss a novel hypothesis that brain ischemia inactivates NSF ATPase, resulting in a cascade of events of disruption of the Golgi-endosome-lysosome pathway, release of cathepsin B (CTSB), and induction of mitochondrial outer membrane permeabilization (MOMP) during the postischemic phase. This hypothesis is supported by recent studies demonstrating that NSF is trapped into inactive protein aggregates in neurons destined to die after brain ischemia. Consequently, Golgi, transport vesicles (TVs), and late endosomes (LEs) are accumulated and damaged, which is followed by CTSB release from these damaged structures. Moderate release of CTSB cleaves Bax like BH3 protein (Bid) to become active truncated Bid (tBid). Active tBid is then translocated to the mitochondrial outer membrane, resulting in oligomerization of BCL2-associated X protein (Bax) forming the mitochondrial outer membrane pores, and releasing mitochondrial intramembranous proteins. Extensive CTSB release, however, can digest cellular proteins indiscriminately to induce cell death. Based on these new observations, we propose a novel hypothesis, i.e., brain ischemia leads to NSF inactivation, resulting in a massive buildup of damaged Golgi, TVs and LEs, fatal release of CTSB, induction of MOMP, and eventually brain ischemia-reperfusion injury. PMID- 29022239 TI - Application of EGFR inhibitor reduces circulating tumor cells during transcatheter arterial embolization. AB - PURPOSE: Transcatheter arterial embolization (TAE) has been widely used in treating non-curative hepatocellular carcinoma (HCC). However, it is noticed that TAE may cause invasion of some cancer cells into circulation, resulting in distal metastasis and poor therapeutic outcome. Here, we aimed to reduce the side effects of TAE using the inhibitors for epidermal growth factor receptor (EGFR). METHODS: Transient hepatic artery ligation (HAL) was used as a mouse model for TAE. EGFR inhibitors were applied. Tumor size, presence of tumor cells in circulation, distal tumor formation, and activation of genes associated with tumor cell invasion and metastasis were analyzed. RESULTS: Inhibitors for EGFR significantly reduced the size of primary tumor, presence of tumor cells in circulation, and distal tumor formation after HAL. Further studies showed that EGFR inhibition suppressed several genes associated with tumor cell invasion and metastasis, such as vascular endothelial growth factor-A, stromal cell-derived factor 1, and Slug. CONCLUSION: EGFR inhibitor application may reduce circulating cancer cells during TAE and thus improve the therapy for advanced HCC. PMID- 29022240 TI - Mercury alters initiation and construction of nests by zebra finches, but not incubation or provisioning behaviors. AB - Mercury is an environmental contaminant that impairs avian reproduction, but the behavioral and physiological mechanisms underlying this effect are poorly understood. The objective of this study was to determine whether lifetime dietary exposure to mercury (1.2 ug/g wet weight in food) impacted avian parental behaviors, and how this might influence reproductive success. To distinguish between the direct effects of mercury on parents and offspring, we created four treatment groups of captive-bred zebra finches (Taeniopygia guttata), with control and mercury-exposed adults raising cross-fostered control or mercury exposed eggs (from maternal transfer). Control parents were 23% more likely to fledge young than parents exposed to mercury, regardless of egg exposure. Mercury exposed parents were less likely to initiate nests than controls and spent less time constructing them. Nests of mercury-exposed pairs were lighter, possibly due to an impaired ability to bring nest material into the nestbox. However, nest temperature, incubation behavior, and provisioning rate did not differ between parental treatments. Unexposed control eggs tended to have shorter incubation periods and higher hatching success than mercury-exposed eggs, but there was no effect of parental exposure on these parameters. We accidentally discovered that parent finches transfer some of their body burden of mercury to nestlings during feeding through secretion in the crop. These results suggest that, in mercury exposed songbirds, pre-laying parental behaviors, combined with direct exposure of embryos to mercury, likely contribute to reduced reproductive success and should be considered in future studies. Further research is warranted in field settings, where parents are exposed to greater environmental challenges and subtle behavioral differences might have more serious consequences than were observed in captivity. PMID- 29022242 TI - Exploring the Role of YouTube in Disseminating Psychoeducation. AB - OBJECTIVE: Social media can bridge the gap between health care and ethnic minorities over cultural barriers. This study explores the role of YouTube in delivering schizophrenia education to individuals in the USA who are also fluent in Chinese. METHODS: Three psychoeducational YouTube videos related to schizophrenia were uploaded. Data were collected for a 12-month period, and results were analyzed using descriptive statistics. RESULTS: The videos recorded 4935 views with a total viewing time of 35,614 min. The first-episode psychosis video had the most number of views and shares, and the longest total watch time and average view duration. The targeted age group (< 34 years old) comprised about half of the total views and had a 14.4% longer average view duration compared to the overall average. CONCLUSION: YouTube is a useful tool that delivers schizophrenia education to Chinese-speaking individuals in the USA. It may also help alleviate the negative stigma regarding schizophrenia and other mental health issues. PMID- 29022241 TI - A panel of protein candidates for comprehensive study of Caprine Arthritis Encephalitis (CAE) infection. AB - The caprine arthrite encephalite (CAE) is a disease that affects especially dairy goat. The virus shows compartmentalization features, that allows it to hide at certain times during the course of the disease, making it difficult to control. The present study was conducted to identify the major seminal plasma protein profile of goats infected by CAE and its associations with seroconversion using Western blotting. Two groups containing five males each, were used in this experiment. The first group was composed by seropositive animals and the control by seronegative confirmed by Western blotting and PCR. The semen was collected through artificial vagina and after that, two-dimensional electrophoresis and MALDI-TOF MS were used. Seventy-five spots were identified in the goat seminal plasma gels, equivalent to 13 different proteins with more expression. The similar proteins found in both groups and related to reproduction were spermadhesin Z13-like, bodhesin and bodhesin-2, Lipocalin, protein PDC-109-like, and albumin. In infected goats, proteases such as arisulfatase A have been identified, whose function probably is related to metabolism control of sulfatides, involved to virus control. The other ones were bifunctional ATP dependent dihydroxyacetone kinase/FAD-AMP lyase, cathepsin F isoform X1, disintegrin and metalloproteinase domain-containing protein 2-like isoform X1, clusterin, carbonic anhydrase 2, electron transfer flavoprotein subunit beta, and epididymal secretory glutathione peroxidase. The results of this study show the reaction of the innate immune system against chronic infection of goats by CAE. PMID- 29022244 TI - Systemic embolism from bilateral atrial myxomas. PMID- 29022243 TI - Pyrosequencing analysis of source water switch and sulfate-induced bacterial community transformation in simulated drinking water distribution pipes. AB - Inter-basin water transfer and source water switching will be increasingly launched due to significant population increase and the shortage of the local water resources in cities around the world. Source water switch may cause physiochemical and microbiological de-stabilization of pipe material, biofilms, and loose deposits in drinking water distribution system (DWDS). Great sulfate alteration during source water switch had been deemed as the main cause of a red water case that occurred in a northern China city. To ascertain the relationship between water quality changing and bacterial communities of biofilms in DWDS and possible bacteria risk in a red water case, water quality changing experiments in simulated DWDSs were conducted for approximately 2 years. Twenty-five corrosion scale samples and eight water samples collected from pipe harvest sites or during experimental periods were analyzed for their bacterial community composition by 454-pyrosequencing technology. Taxonomy results together with redundancy analysis (RDA) or canonical correspondence analysis (CCA) and hierarchical cluster analysis all indicated that bacterial community of samples with groundwater (GW) or surface water (SW) supply history and their variations under high sulfate water were rather different owing to different water source histories and the original pipe scale characteristics. Potential opportunistic pathogens: Burkholderia, Escherichia-Shigella, Mycobacterium, Serratia, Ralstonia, Novosphingobium, Flavobacterium, Sphingomonas, and Sphingopyxis were observed in scale or water samples. PMID- 29022245 TI - Prevalence of eosinophilic esophagitis in patients with gastroesophageal reflux symptoms: A cross-sectional study from a tertiary care hospital in North India. AB - BACKGROUND: Eosinophilic esophagitis (EoE) is being recognized increasingly all over the globe; Indian data is however sparse. We screened patients with symptoms of gastroesophageal reflux disease (GERD) for presence of EoE in them. METHODS: Consecutive patients with symptoms suggestive of GERD underwent gastroduodenoscopy and esophageal biopsies, obtained from both the upper esophagus (5 cm below the upper esophageal sphincter) and lower esophagus (5 cm above gastroesophageal junction), as well as from any other endoscopically visible abnormal mucosa. Demographic and clinical characteristics, endoscopic findings, peripheral blood eosinophilic count, and history of use of proton-pump inhibitors (PPIs) were analyzed. Stool examination was done to rule out parasitoids. EoE was diagnosed if number of mucosal eosinophil infiltrate was >20 per high-power field. In the latter, Warthin-Starry stain was performed to rule out presence of H elicobacter pylori. RESULTS: Of 190 consecutive patients with symptoms of GERD screened, esophageal biopsies were available in 185 cases. Of them, 6 had EoE, suggesting a prevalence of 3.2% among patients with GERD. On univariate analysis, history of allergy, non-response to PPI, and absolute eosinophil counts and on multivariable analysis, history of allergy and no response to PPIs were significant predictors of EoE. Presence of EOE did not correlate with severity of reflux symptoms. CONCLUSION: In this hospital-based study from northern part of India, prevalence of EoE in patients with GERD was 3.2%. EoE should be considered as a diagnostic possibility, especially in those with history of allergy, no-response to PPI, and absolute eosinophil count of >=250/cumm. PMID- 29022246 TI - Alpha-lipoic acid mitigates toxic-induced demyelination in the corpus callosum by lessening of oxidative stress and stimulation of polydendrocytes proliferation. AB - Multiple Sclerosis (MS), is a disease that degenerates myelin in central nervous system (CNS). Reactive oxygen species (ROSs) are toxic metabolites, and accumulating data indicate that ROSs-mediated apoptosis of oligodendrocytes (OLGs) plays a major role in the pathogenesis of MS under oxidative stress conditions. In this study, we investigated the role of endogenous antioxidant alpha-lipoic acid (ALA) as ROSs scavenger in the OLGs loss and myelin degeneration during cuprizone (cup)-induced demyelination in the experimental model of MS. Our results have shown that ALA treatment significantly increased population of mature OLGs (MOG+ cells), as well as decreased oxidative stress (ROSs, COX-2 and PGE2) and apoptosis mediators (caspase-3 and Bax/Bcl2 ratio) in corpus callosum (CC). Surprisingly, ALA significantly stimulates population of NG2 chondroitin sulfate proteoglycan positive glia (NG2+ cells or polydendrocytes), from week 4 afterward. Accordingly ALA could prevents apoptosis, delays demyelination and recruits OLGs survival and regeneration mechanisms in CC. We conclude that ALA has protective effects against toxic demyelination via reduction of redox signaling, and alleviation of polydendrocytes vulnerability to excitotoxic challenge. PMID- 29022247 TI - Persistent Norovirus Contamination of Groundwater Supplies in Two Waterborne Outbreaks. AB - Microbiological contamination of groundwater supplies causes waterborne outbreaks worldwide. In this study, two waterborne outbreaks related to microbiological contamination of groundwater supplies are described. Analyses of pathogenic human enteric viruses (noroviruses and adenoviruses), fecal bacteria (Campylobacter spp. and Salmonella spp.), and indicator microbes (E. coli, coliform bacteria, intestinal enterococci, Clostridium perfringens, heterotrophic plate count, somatic and F-specific coliphages) were conducted in order to reveal the cause of the outbreaks and to examine the effectiveness of the implemented management measures. Moreover, the long-term persistence of noro- and adenovirus genomes was investigated. Noroviruses were detected in water samples from both outbreaks after the intrusion of wastewater into the drinking water sources. In the outbreak I, the removal efficiency of norovirus genome (3.0 log10 removal) in the sand filter of onsite wastewater treatment system (OWTS) and during the transport through the soil into the groundwater well was lower than the removal efficiencies of E. coli, coliform bacteria, intestinal enterococci, and spores of C. perfringens (6.2, 6.0, > 5.9, and > 4.8 log10 removals, respectively). In the outbreak II, cleaning of massively contaminated groundwater well and drinking water distribution network proved challenging, and noro- and adenovirus genomes were detected up to 3 months (108 days). The long-term persistence study showed that noro- and adenovirus genomes can remain detectable in the contaminated water samples up to 1277 and 1343 days, respectively. This study highlights the transport and survival properties of enteric viruses in the environment explaining their potency to cause waterborne outbreaks. PMID- 29022249 TI - Common Subcluster Mining in Microarray Data for Molecular Biomarker Discovery. AB - Molecular biomarkers can be potential facilitators for detection of cancer at early stage which is otherwise difficult through conventional biomarkers. Gene expression data from microarray experiments on both normal and diseased cell samples provide enormous scope to explore genetic relations of disease using computational techniques. Varied patterns of expressions of thousands of genes at different cell conditions along with inherent experimental error make the task of isolating disease related genes challenging. In this paper, we present a data mining method, common subcluster mining (CSM), to discover highly perturbed genes under diseased condition from differential expression patterns. The method builds heap through superposing near centroid clusters from gene expression data of normal samples and extracts its core part. It, thus, isolates genes exhibiting the most stable state across normal samples and constitute a reference set for each centroid. It performs the same operation on datasets from corresponding diseased samples and isolates the genes showing drastic changes in their expression patterns. The method thus finds the disease-sensitive genesets when applied to datasets of lung cancer, prostrate cancer, pancreatic cancer, breast cancer, leukemia and pulmonary arterial hypertension. In majority of the cases, few new genes are found over and above some previously reported ones. Genes with distinct deviations in diseased samples are prospective candidates for molecular biomarkers of the respective disease. PMID- 29022248 TI - Coxsackievirus B4 as a Causative Agent of Diabetes Mellitus Type 1: Is There a Role of Inefficiently Treated Drinking Water and Sewage in Virus Spreading? AB - This study proposed to detect the enterovirus (EV) infection in children with type 1 diabetes mellitus (T1D) and to assess the role of insufficiently treated water and sewage as sources of viral spreading. Three hundred and eighty-two serum specimens of children with T1D, one hundred serum specimens of children who did not suffer from T1D as control, and forty-eight water and sewage samples were screened for EV RNA using nested RT-PCR. The number of genome copies and infectious units of EVs in raw and treated sewage and water samples were investigated using real-time (RT)-PCR and plaque assay, respectively. T1D markers [Fasting blood glucose (FBG), HbA1c, and C-peptide], in addition to anti Coxsackie A & B viruses (CVs A & B) IgG, were measured in control, T1D-negative EV (T1D-EV-), and T1D-positive EV (T1D-EV+) children specimens. The prevalence of EV genome was significantly higher in diabetic children (26.2%, 100 out of 382) than the control children (0%, 0 out of 100). FBG and HbA1c in T1D-EV- and T1D EV+ children specimens were significantly higher than those in the control group, while c-peptide in T1D-EV- and T1D-EV+ children specimens was significantly lower than that in the control (n = 100; p < 0.001). Positivity of anti-CVs A & B IgG was 70.7, 6.7, and 22.9% in T1D-EV+, T1D-EV-, and control children specimens, respectively. The prevalence of EV genome in drinking water and treated sewage samples was 25 and 33.3%, respectively. The prevalence of EV infectious units in drinking water and treated sewage samples was 8.5 and 25%, respectively. Quantification assays were performed to assess the capabilities of both wastewater treatment plants (WWTPs) and water treatment plants (WTPs) to remove EV. The reduction of EV genome in Zenin WWTP ranged from 2 to 4 log10, while the reduction of EV infectious units ranged from 1 to 4 log10. The reduction of EV genome in El-Giza WTP ranged from 1 to 3 log10, while the reduction of EV infectious units ranged from 1 to 2 log10. This capability of reduction did not prevent the appearance of infectious EV in treated sewage and drinking water. Plaque purification was performed for isolation of separate EV isolates from treated and untreated water and sewage samples. Characterization of the EV amplicons by RT-PCR followed by sequencing of these isolates revealed high homology (97%) with human coxsackievirus B4 (CV B4) in 60% of the isolates, while the rest of the isolates belonged to poliovirus type 1 and type 2 vaccine strains. On the other hand, characterization of the EV amplicons by RT-PCR followed by sequencing for T1D-EV+ children specimens indicated that all samples contained CV B4 with the same sequence characterized in the environmental samples. CV B4-contaminated drinking water or treated sewage may play a role as a causative agent of T1D in children. PMID- 29022250 TI - Fundamental Limits of Forced Asynchronous Spiking with Integrate and Fire Dynamics. PMID- 29022251 TI - Genetic and environmental relationships between eating behavior and symptoms of anxiety and depression. AB - PURPOSE: To assess gender-specific genetic and environmental correlations between depressive and anxiety symptoms, and concurrent and follow-up eating behavior in Korean twins and their family members. METHODS: Center for Epidemiological Studies Depression Scale and State-Trait Anxiety Inventory were used to measure depressive and anxiety symptoms in subjects. To assess concurrent and follow-up relationships of the symptoms with eating behavior domains (restrained, emotional, and external eating), the Dutch Eating Behavior Questionnaire was administered to 2359 subjects at baseline (men, 48.5%; 42.0 +/- 12.7 years; monozygotic twins, 33.7%) and to 1169 subjects at follow-up (men, 45.9%; 44.9 +/- 11.6 years; monozygotic twins, 41.0%). A mixed linear model and bivariate analysis were applied. RESULTS: After adjusting for age, twin and family effects, income, education, smoking status, alcohol use, exercise, and body mass index, depressive and anxiety symptoms were positively associated with concurrent and follow-up emotional and external eating, but not with restrained eating. The effect size of association with emotional eating increased in men in men over time, but decreased in women. Common genetic and environmental correlations showed a difference between genders, and their strength changed with time. Nevertheless, common genetic correlations were found between depressive and anxiety symptoms, and concurrent emotional eating, in both genders. There were common environmental correlations between anxiety symptoms, and concurrent restrained and emotional as well as follow-up emotional eating, in both genders. CONCLUSIONS: There are similarities and differences in genetic and environmental relationships between depressive and anxiety symptoms and eating behaviors, based on gender and time of assessment. LEVEL OF EVIDENCE: Level III, cohort study. PMID- 29022252 TI - Biological Data on Anovia punica Gordon (Coleoptera: Coccinellidae), a Predator of Crypticerya multicicatrices Kondo & Unruh (Hemiptera: Monophlebidae). AB - The coccinellid beetle Anovia punica Gordon (Coleoptera: Coccinellidae: Noviini) is an important predator of the Colombian fluted scale, Crypticerya multicicatrices Kondo & Unruh (Hemiptera: Monophlebidae). In order to gather information on the biological traits of A. punica, we conducted a series of studies, including of the developmental time of each life history stage, estimation of life table parameters, and predation rates under laboratory conditions [25.1 +/- 1.6 degrees C, with 70.5 +/- 7.3% RH, and natural light regime, approx. 12:12 (L:D) h]. Developmental stages of A. punica were categorized as follows: egg stage, four larval instars, prepupal instar, pupal instar, and adult. Developmental time from egg to adult emergence averaged 29.41 +/- 1.85 days, and 47.6% of the eggs developed to adulthood. Female and male survival was 94.42 and 90 days, respectively. Life table parameters show that one female of A. punica is replaced by 86 females (R 0), the intrinsic growth rate (r m ) was 0.1115, the average generation time (T) was 40 days, and the doubling time (D t ) was 6.2 days. The life table parameters suggest that A. punica can be used as a potential predator of C. multicicatrices and, more importantly, provided baseline information for a mass-rearing protocol. This is the first detailed study on the biology of A. punica that reports the potential of this predator as a biological control agent for scale insects of the tribe Iceryini. PMID- 29022253 TI - Successful transcatheter aortic valve implantation in a quadricuspid aortic valve with severe stenosis and moderate regurgitation. PMID- 29022254 TI - Physical Inactivity and the Economic and Health Burdens Due to Cardiovascular Disease: Exercise as Medicine. AB - Leisure time physical activity, or exercise, has been described as today's best buy in public health. Physical inactivity is responsible for around 10% of all deaths and physical inactivity costs global healthcare systems billions of dollars each year. Here, we describe the human and economic costs of cardiovascular disease. Then, we explain that physical inactivity is a major modifiable risk factor for cardiovascular disease. The evidence of the role of physical activity in the primary prevention of cardiovascular disease is reviewed and we make the case that exercise is medicine. PMID- 29022255 TI - Acute and Chronic Response to Exercise in Athletes: The "Supernormal Heart". AB - During last decades, most studies have examined the exercise-induced remodeling defined as "athlete's heart". During exercise, there is an increased cardiac output that causes morphological, functional, and electrical modification of the cardiac chambers. The cardiac remodeling depends also on the type of training, age, sex, ethnicity, genetic factors, and body size. The two main categories of exercise, endurance and strength, determine different effects on the cardiac remodeling. Even if most sport comprise both strength and endurance exercise, determining different scenarios of cardiac adaptation to the exercise. The aim of this paper is to assemble the current knowledge about physiologic and pathophysiologic response of both the left and the right heart in highly trained athletes. PMID- 29022256 TI - The Effects of Exercise on Cardiovascular Biomarkers: New Insights, Recent Data, and Applications. AB - The benefit of regular exercise or physical activity with appropriate intensity on improving cardiopulmonary function and endurance has long been accepted with less controversy. The challenge remains, however, quantitatively evaluate the effect of exercise on cardiovascular health due in part to the amount and intensity of exercise varies widely plus lack of effective, robust and efficient biomarker evaluation systems. Better evaluating the overall function of biomarker and validate biomarkers utility in cardiovascular health should improve the evidence regarding the benefit or the effect of exercise or physical activity on cardiovascular health, in turn increasing the efficiency of the biomarker on individuals with mild to moderate cardiovascular risk. In this review, beyond traditional cytokines, chemokines and inflammatory factors, we systemic reviewed the latest novel biomarkers in metabolomics, genomics, proteomics, and molecular imaging mainly focus on heart health, as well as cardiovascular diseases such as atherosclerosis and ischemic heart disease. Furthermore, we highlight the state of-the-art biomarker developing techniques and its application in the field of heart health. Finally, we discuss the clinical relevance of physical activity and exercise on key biomarkers in molecular basis and practical considerations. PMID- 29022258 TI - Structural, Contractile and Electrophysiological Adaptations of Cardiomyocytes to Chronic Exercise. AB - Cardiac beneficial effects of chronic exercise is well admitted. These effects mainly studied at the organ and organism integrated levels find their origin in cardiomyocyte adaptation. This chapter try to highlight the main trends of the data related to the different parameters subject to such adaptations. This is addressed through cardiomyocytes size and structure, calcium and contractile properties, and finally electrophysiological alterations induced by training as they transpire from the literature. Despite the clarifications needed to decipher healthy cardiomyocyte remodeling, this overview clearly show that cardiac cell plasticity ensure the cardiac adaptation to exercise training and offers an interesting mean of action to counteract physiological disturbances induced by cardiac pathologies. PMID- 29022257 TI - Acute and Chronic Exercise in Animal Models. AB - Numerous animal cardiac exercise models using animal subjects have been established to uncover the cardiovascular physiological mechanism of exercise or to determine the effects of exercise on cardiovascular health and disease. In most cases, animal-based cardiovascular exercise modalities include treadmill running, swimming, and voluntary wheel running with a series of intensities, times, and durations. Those used animals include small rodents (e.g., mice and rats) and large animals (e.g., rabbits, dogs, goats, sheep, pigs, and horses). Depending on the research goal, each experimental protocol should also describe whether its respective exercise treatment can produce the anticipated acute or chronic cardiovascular adaptive response. In this chapter, we will briefly describe the most common kinds of animal models of acute and chronic cardiovascular exercises that are currently being conducted and are likely to be chosen in the near future. Strengths and weakness of animal-based cardiac exercise modalities are also discussed. PMID- 29022259 TI - Formation of New Cardiomyocytes in Exercise. AB - Heart failure is a life-threatening disorder associated with the loss of cardiomyocytes. The heart has some endogenous although limited regenerative capacity, thus enhancing cardiac regeneration or stimulating endogenous repair mechanism after cardiac injury is of great interest. The benefits of exercise in heart diseases have been recognized for centuries. Besides the promotion of a favorable cardiac function, exercise is also associated with new cardiomyocytes formation. Exercise may lead to cardiomyocytes renewal from pre-existing cardiomyocytes proliferation or cardiac stem/progenitor cells differentiation. A deep understanding of exercise-induced formation of new cardiomyocytes will enable us to develop novel therapeutics for heart diseases. PMID- 29022260 TI - Physical Exercise Can Spur Beneficial Neoangiogenesis and Microvasculature Remodeling Within the Heart - Our Salvation? AB - Economic and social burden of cardiovascular diseases remains enormous and even still rising. There is not enough mass evidence in scientific journals that could describe the course of the process of neoangiogenesis in relatively "healthy" heart after regular endurance exercise. Even though, in this review, we are showing preliminary evidence that this can be one of really cheap and effective preventive means. We are elucidating some of the cellular signaling pathways how exercise could affect neoangiogenesis and ameliorate performance of the heart. Key roles in this process are mechanical forces (mainly increased velocity of blood flow and shear stress) and subsequent rise of angiogenic biological factors (mainly VEGFA). PMID- 29022261 TI - The Non-cardiomyocyte Cells of the Heart. Their Possible Roles in Exercise Induced Cardiac Regeneration and Remodeling. AB - The non-cardiomyocyte cellular microenvironment of the heart includes diverse types of cells of mesenchymal origin. During development, the majority of these cells derive from the epicardium, while a subset derives from the endothelium/endocardium and neural crest derived mesenchyme. This subset includes cardiac fibroblasts and telocytes, the latter of which are a controversial type of "connecting cell" that support resident cardiac progenitors in the postnatal heart. Smooth muscle cells, pericytes, and endothelial cells are also present, in addition to adipocytes, which accumulate as epicardial adipose connective tissue. Furthermore, the heart harbors many cells of hematopoietic origin, such as mast cells, macrophages, and other immune cell populations. Most of these control immune reactions and inflammation. All of the above-mentioned non-cardiomyocyte cells of the heart contribute to this organ's well-orchestrated physiology. These cells also contribute to regeneration as a result of injury or age, in addition to tissue remodeling triggered by chronic disease or increased physical activity (exercise-induced cardiac growth). These processes in the heart, the most important vital organ in the human body, are not only fascinating from a scientific standpoint, but they are also clinically important. It is well-known that regular exercise can help prevent many cardiovascular diseases. However, the precise mechanisms underpinning myocardial remodeling triggered by physical activity are still unknown. Surprisingly, exercise-induced adaptation mechanisms are often identical or very similar to tissue remodeling caused by pathological conditions, such as hypertension, cardiac hypertrophy, and cardiac fibrosis. This review provides a summary of our current knowledge regarding the cardiac cellular microenvironment, focusing on the clinical applications this information to the study of heart remodeling during regular physical exercise. PMID- 29022262 TI - Myocardial Infarction and Exercise Training: Evidence from Basic Science. AB - In 2016, cardiovascular disease remains the first cause of mortality worldwide [1]. Coronary artery disease, which is the most important precursor of myocardial infarction (MI), is the main component of total cardiovascular mortality, being responsible for approximately seven million of deaths [1]. In approximately 20% of infarcted patients, MI is recurrent in the first year after the event [2]. Moreover, among cardiovascular disease, coronary artery disease accounts for the most increased index of life years lost due to morbidity and/or mortality [1]. Sedentarism highly contributes to cardiovascular disease burden, especially for coronary artery disease, and is also one of the MI risk factors [3]. For many years, it was recommended to avoid physical activity after a cardiovascular event; nowadays, it is a consensus that exercise training (ET) should be part of cardiac rehabilitation programs. There is increasing evidence confirming that, when adequately prescribed and supervised, ET after MI can prevent future complications and increase the quality of life and longevity of infarcted patients [4, 5]. ET after MI follows international specialized guidelines; however, there are different protocols adopted by several societies worldwide in cardiac rehabilitation [6], and there is still lack of information on which type and regimen of exercise may be the ideal after MI, as well as how these exercises act to promote beneficial effects to cardiovascular and other organic systems. Thus, experimental studies are important contributors to elicit mechanisms behind clinical results, and to test and compare different ET protocols. Therefore, exercise prescription can be optimized, individualized, and safely practiced by patients. In this chapter, we present a brief review of MI pathophysiology followed by an updated discussion of the most relevant discoveries regarding ET and MI in basic science. PMID- 29022263 TI - Cardiac Ischemia/Reperfusion Injury: The Beneficial Effects of Exercise. AB - Cardiac ischemia reperfusion injury (IRI) occurs when the myocardium is revascularized after an episode of limited or absent blood supply. Many changes, including free radical production, calcium overload, protease activation, altered membrane lipids and leukocyte activation, contribute to IRI-induced myocardium damage. Aerobic exercise is the only countermeasure against IRI that can be sustained on a regular basis in clinical practice. Interestingly, both short-term (3-5 days) and long-term (several weeks) exercise increase myocardial tolerance, reduce infarct size area and arrhythmias induced by IRI. Exercise protects the heart against IRI in a biphasic manner. The early phase of cardioprotection occurs between 30 min and 3 h following an acute exercise bout, whilst the late phase is achieved within 24 h after the exercise bout and persists for several days. As for the exercise intensity, although controversial data exists, it is feasible that the amount of cardioprotection is proportional to exercise intensity and only achieved above a critical threshold. It is known that aerobic exercise produces a cardioprotective phenotype, however the mechanisms responsible for this phenomenon remain unclear. Apparently, aerobic exercise induced preconditioning is dependent on several factors that work together to protect the heart. Altered nitric oxide (NO) signaling, increased levels of heat shock proteins (HSPs), enhanced function of ATP-sensitive potassium channels, increased activation of opioids system, and enhanced antioxidant capacity may contribute to exercise-induced cardioprotection. Much has been discovered from animal models involving exercise-induced cardioprotection against cardiac IRI, however translating these findings to clinical practice still represents the major challenge in this field. PMID- 29022264 TI - Experimental Evidences Supporting the Benefits of Exercise Training in Heart Failure. AB - Heart Failure (HF), a common end point for many cardiovascular diseases, is a syndrome with a very poor prognosis. Although clinical trials in HF have achieved important outcomes in reducing mortality, little is known about functional mechanisms conditioning health improvement in HF patients. In parallel with clinical studies, basic science has been providing important discoveries to understand the mechanisms underlying the pathophysiology of HF, as well as to identify potential targets for the treatment of this syndrome. In spite of being the end-point of cardiovascular derangements caused by different etiologies, autonomic dysfunction, sympathetic hyperactivity, oxidative stress, inflammation and hormonal activation are common factors involved in the progression of this syndrome. Together these causal factors create a closed link between three important organs: brain, heart and the skeletal muscle. In the past few years, we and other groups have studied the beneficial effects of aerobic exercise training as a safe therapy to avoid the progression of HF. As summarized in this chapter, exercise training, a non-pharmacological tool without side effects, corrects most of the HF-induced neurohormonal and local dysfunctions within the brain, heart and skeletal muscles. These adaptive responses reverse oxidative stress, reduce inflammation, ameliorate neurohormonal control and improve both cardiovascular and skeletal muscle function, thus increasing the quality of life and reducing patients' morbimortality. PMID- 29022265 TI - Exercise Amaliorates Metabolic Disturbances and Oxidative Stress in Diabetic Cardiomyopathy: Possible Underlying Mechanisms. AB - Cardiomyopathy is a serious complication of diabetes mellitus and occurs independently of coronary artery disease or hypertension. It manifests as systolic/diastolic dysfunction and hypertrophy of the left ventricle and can lead to heart failure. Hyperglycemia can trigger a series of maladaptive stimuli and result in cardiac hypertrophy, fibrosis and reduced performance and contractility. The pathogenesis of diabetic cardiomyopathy is a multifactorial process that includes metabolic derangements such as increased oxidative stress, and altered non-oxidative glucose pathways and lipid metabolism. Exercise is a useful non-pharmacological strategy effective in the reduction of diabetes and obesity risk factors, and improvement of antioxidant defenses, mitochondrial function and physiological cardiac growth. It can amend multiple metabolic derangements and alterations in the diabetic heart. Therefore, figuring out the underlying mechanisms of exercise-induced beneficial effects could help to develop new treatment strategies for diabetic cardiomyopathy. PMID- 29022266 TI - Cardiac Aging - Benefits of Exercise, Nrf2 Activation and Antioxidant Signaling. AB - Cardiovascular dysfunction and heart failure associated with aging not only impairs the cardiac function but also the quality of life eventually decreasing the life expectancy of the elderly. Notably, cardiac tissue can prematurely age under certain conditions such as genetic mutation, persistent redox stress and overload, aberrant molecular signaling, DNA damage, telomere attrition, and other pathological insults. While cardiovascular-related morbidity and mortality is on the rise and remains a global health threat, there has been only little to moderate improvements in its medical management. This is due to the fact that the lifestyle changes to molecular mechanisms underlying age-related myocardial structure and functional remodeling are multifactorial and intricately operate at different levels. Along these lines, the intrinsic redox mechanisms and oxidative stress (OS) are widely studied in the myocardium. The accumulation of reactive oxygen species (ROS) with age and the resultant oxidative damage has been shown to increase the susceptibility of the myocardium to multiple complications such as atherosclerosis, hypertension, ischemic heart disease, cardiac myopathy, and heart failure. There has been growing interest in trying to enhance the mechanisms that neutralize the ROS and curtailing OS as a possible anti-aging intervention and as a treatment for age-related disorders. Natural defense system to fight against OS involves a master transcription factor named nuclear erythroid-2-p45-related factor-2 (Nrf2) that regulates several antioxidant genes. Compelling evidence exists on the Nrf2 gain of function through pharmacological interventions in counteracting the oxidative damage and affords cytoprotection in several organs including but not limited to lung, liver, kidney, brain, etc. Nevertheless, thus far, only a few studies have described the potential role of Nrf2 and its non-pharmacological induction in cardiac aging. This chapter explores the effects of various modes of exercise on Nrf2 signaling along with its responses and ramifications on the cascade of OS in the aging heart. PMID- 29022268 TI - Physical Exercise Is a Potential "Medicine" for Atherosclerosis. AB - Cardiovascular disease (CVD) has been recognized as the number one killer for decades. The most well-known risk factor is atherosclerosis. Unlike the acuity of CVD, atherosclerosis is a chronic, progressive pathological change. This process involves inflammatory response, oxidative reaction, macrophage activity, and different interaction of inflammatory factors. Physical exercise has long been known as good for health in general. In recent studies, physical exercise has been demonstrated to be a therapeutic tool for atherosclerosis. However, its therapeutic effect has dosage-dependent effect. Un-proper over exercise might also cause damage to the heart. Here we summarize the mechanism of Physical exercise's beneficial effects and its potential clinical use. PMID- 29022267 TI - Cardiac Fibrosis: The Beneficial Effects of Exercise in Cardiac Fibrosis. AB - Numerous scientific findings have concluded that individuals who are active tend to develop less cardiovascular disease than those who enjoy more sedentary lifestyles. Animal models have further demonstrated that the beneficial effects of training on the heart effects of training are related to the signaling pathways of myocardial hypertrophy and fibrosis. As such, fibroblasts represent a very important population of cells within the myocardium as they play a crucial role in both cardiac development and response to injury. Fibroblasts establish and maintain the biochemical, electrical and mechanical environment of the heart through their complex interactions with cardiomyocytes. Cardiac injury disrupts the balance between fibroblasts and cardiomyocytes and creates a state favouring inflammation and fibrosis. Although this adaptive response initially serves to increase wound healing, it may eventually lead to increased cardiac damage and cardiac failure if homeostasis is not restored. Myofibroblasts are mediators of both the adaptive and maladaptive components of this reaction. This review focuses on the beneficial effects of exercise in cardiac fibrosis as demonstrated in basic research studies. Attention will be given to the characterisation of the relationship between exercise and cardiac remodelling, including the cellular and molecular adaptations of the heart in response to exercise as well as benefits of exercise in preventing or reversing the pathological remodelling of the fibrotic heart. By furthering our understanding of the beneficial and deleterious roles of cardiac fibroblasts and myofibroblasts and how these roles are related to each other in cardiac development and in heart disease, we may be able to design interventions to prevent the progression of cardiac fibrosis. PMID- 29022269 TI - Experimental Evidences Supporting Training-Induced Benefits in Spontaneously Hypertensive Rats. AB - It is well known that chronic hypertension is accompanied by several functional deficits in the central nervous system and peripheral tissues, most of which are corrected by exercise training. However, the biological mechanisms underlying these effects are not yet well understood. In the present chapter we summarize recent experimental evidence on cellular/molecular mechanisms supporting not only the deleterious effects of hypertension on autonomic control and peripheral circulatory deficits, but also their reversion by low to moderate aerobic exercise training. Interestingly, both hypertension and aerobic training exert their effects by acting exactly on the same pathways/mechanisms but in opposed directions. PMID- 29022270 TI - Exercise Training in Pulmonary Hypertension and Right Heart Failure: Insights from Pre-clinical Studies. AB - Exercise training (ExT) is widely used for the prevention and treatment of several chronic cardiovascular diseases. However, only recently it started to be recognized as safe and beneficial in pulmonary arterial hypertension. Despite the consistency of its favorable effects on exercise tolerance and quality of life, the mechanisms underlying these meaningful clinical improvements remain unclear. Current studies emphasize the exercise-induced changes on skeletal muscle but the impact of ExT at the level of the pulmonary circulation and right ventricle should not be overlooked. In this chapter, we summarize the main findings from pre-clinical studies analyzing the impact of exercise in pulmonary hypertension and right heart failure. PMID- 29022271 TI - A comparison of six clock-drawing test scoring methods in a nursing home. AB - BACKGROUND: Clock-drawing test (CDT) is widely used but lack of a suitable scoring method. AIMS: To compare the validity of six common CDT scoring methods and to find out the best one. METHODS: The drawing CDT was administered in a Chinese nursing-home inhabitants living on the mainland including 110 dementia, 118 MCI (mild cognitive impairment), and 133 random normal. We calculated the sensitivity and specificity of six scoring methods and applied the receiver operating characteristic (ROC) curve statistic, including determining the area under the curve (AUC). RESULTS: (1) All six CDT scoring methods had a value of sensitivity higher than 80% and a specificity of 60% except Jouk and Tuokko. Freund got the highest sensitivity (92.73%) of that five for the testing of dementia and high sensitivity (82.20%) for MCI with an acceptable specificity (70.68%). (2) The AUC (area under the ROC curve) of all six CDT methods was over 0.8 for dementia, and for MCI, only Jouk and Tuokko were lower than 0.8. Mendez had the largest AUC of 0.872 for MCI, which closely followed by Freund with 0.859. (3) Freund predicted dementia best but had no significant difference (p > 0.05); it only had significant difference with Jouk and Tuokko (p < 0.001) and the method in MoCA (p < 0.05) for both MCI and cognitive impairment. CONCLUSIONS: Our study suggests that Freund scoring method could be the best one among the six evaluated scoring methods within our setting. PMID- 29022272 TI - Analysis and experimental evaluation of shunt active power filter for power quality improvement based on predictive direct power control. AB - This paper discusses the use of the concept of classical and predictive direct power control for shunt active power filter function. These strategies are used to improve the active power filter performance by compensation of the reactive power and the elimination of the harmonic currents drawn by non-linear loads. A theoretical analysis followed by a simulation using MATLAB/Simulink software for the studied techniques has been established. Moreover, two test benches have been carried out using the dSPACE card 1104 for the classic and predictive DPC control to evaluate the studied methods in real time. Obtained results are presented and compared in this paper to confirm the superiority of the predictive technique. To overcome the pollution problems caused by the consumption of fossil fuels, renewable energies are the alternatives recommended to ensure green energy. In the same context, the tested predictive filter can easily be supplied by a renewable energy source that will give its impact to enhance the power quality. PMID- 29022273 TI - Staphylococcus lugdunensis Infections of the Skin and Soft Tissue: A Case Series and Review. AB - INTRODUCTION: Staphylococcus lugdunensis (S. lugdunensis) is a coagulase negative, Gram-positive bacterium that can be isolated as a component of normal skin flora in humans. However, more recently, it has also been documented as a culprit in skin and soft tissue infections. We describe the clinical features of five individuals with S. lugdunensis-associated skin infections. We review the characteristics of other patients that were previously described with this organism as the causative agent of skin infection. METHODS: Staphylococcus lugdunensis was correlated with the development of significant skin and soft tissue infections in five patients. The Pubmed database was used to search for the following terms: "abscess," "cellulitis," "cutaneous," "lugdunensis," "paronychia," "skin," "soft," "staphylococcus," and "tissue." The relevant and reference papers generated by the search were reviewed. RESULTS: One woman and four men developed S. lugdunensis-related skin infections from February 19, 2015 to May 30, 2017. The patients' ages at the onset of the infection ranged from 30 to 82 years; the median age was 70 years. Four patients were older than 65 years. The back was the most common location for the infection, followed by digits. The infection presented as cystic lesions with cellulitis or periungual abscesses. The lesions were incised or spontaneously ruptured. Patients were empirically treated with oral antibiotics; if necessary, the management was adjusted based on the culture-derived sensitivities of the organisms. The infections resolved within 10-30 days after commencing treatment. CONCLUSION: Staphylococcus lugdunensis has previously been considered as a nonpathogenic organism and to be a component of normal skin flora. However, S. lugdunensis can result in significant skin and soft tissue infections, perhaps more frequently in older individuals. Its antibiotic sensitivities appear to be similar to those of methicillin-susceptible Staphylococcus aureus. PMID- 29022274 TI - Midazolam prevents motor neuronal death from oxidative stress attack mediated by JNK-ERK pathway. AB - Midazolam is a sedative used by patients with mechanical ventilation. However, the potential clinical value is not fully explored. In this report, we made use of a neuroblastoma-spinal cord hybrid motor neuron-like cell line NSC34, and elucidated the potential role of Midazolam on these cells under the insult of oxidative stress. We found the protective effect of Midazolam on motor neurons against cytotoxicity induced by the combination of oligomycin A and rotenone (O/R) or phenylarsine oxide. The characteristics of apoptosis, such as the ratio of TUNEL+ cells or the expression level of cleaved Caspase-3, was decreased by 22 or 45% in the presence of Midazolam. Furthermore, this effect was correlated with the JNK-ERK signaling pathway. Either phosphorylation of ERK or JNK was positively or negatively modulated with the treatment of Midazolam in NSC34 cells attacked by reactive oxygen species. Meanwhile, inhibition or activation of the JNK-ERK pathway regulated the protective effect of Midazolam on NSC34 cells with oxidative stress insult. Collectively, this study elucidated a previously unidentified clinical effect of Midazolam, and put forward the great promise that Midazolam may be considered as a potential candidate to the treatment of motor neuron disease. PMID- 29022276 TI - Diagnosis and treatment of TSH-secreting adenomas: review of a longtime experience in a reference center. AB - PURPOSE: TSH-secreting pituitary adenomas are among the less prevalent pituitary tumors, corresponding to 0.9-1.5% of all pituitary adenomas in surgical series. METHODS: A series of 11 patients with TSH-secreting and cosecreting adenomas diagnosed and treated in the last 25 years in a single center is described. RESULTS: The mean age at diagnosis was 37 years (range 18-80 years; median 23 years); the ratio of male-to-female patients was similar (6M:5F). Only three patients was the correct diagnosis established shortly after the initial medical evaluation. Other four patients were initially diagnosed with other pituitary adenomas (prolactinoma, acromegaly, and non-secreting pituitary tumor) and another four diagnosed with primary hyperthyroidism. There was a mean diagnostic delay of 6.0 years (range 0.5-25 years; median 2 years). Nine patients had macroadenomas and two patients had microadenomas. Seven patients underwent pituitary surgery which controlled the disease in only two (one micro- and one noninvasive macroadenoma). The other treatments were directed to the thyroid gland (surgery or 131I radiotherapy), pituitary radiotherapy, and somatostatin analog. CONCLUSION: In spite of its relatively straightforward diagnosis, which includes clinical/subclinical hyperthyroidism with or without goiter, increased free thyroxine and nonsuppressed TSH levels, and pituitary mass, the diagnosis of TSH-secreting and cosecreting adenomas was frequently unrecognized and thus much delayed. Serum alpha-subunit levels were high in nearly all patients with TSH secreting adenomas and useful in excluding other conditions in the differential diagnosis. Proper indication and interpretation of simple laboratory tests should be emphasized in medical education to improve diagnostic accuracy. PMID- 29022277 TI - Teaching Clinical Reasoning with an Example Mnemonic for the Neuropsychiatric Syndromes of Traumatic Brain Injury. PMID- 29022275 TI - Volume for Muscle Hypertrophy and Health Outcomes: The Most Effective Variable in Resistance Training. AB - Resistance training is the most effective method to increase muscle mass. It has also been shown to promote many health benefits. Although it is deemed safe and of clinical relevance for treating and preventing a vast number of diseases, a time-efficient and minimal dose of exercise has been the focus of a great number of research studies. Similarly, an inverted U-shaped relationship between training dose/volume and physiological response has been hypothesized to exist. However, the majority of available evidence supports a clear dose-response relationship between resistance training volume and physiological responses, such as muscle hypertrophy and health outcomes. Additionally, there is a paucity of data to support the inverted U-shaped response. Although it may indeed exist, it appears to be much more plastic than previously thought. The overarching principle argued herein is that volume is the most easily modifiable variable that has the most evidenced-based response with important repercussions, be these muscle hypertrophy or health-related outcomes. PMID- 29022278 TI - Alzheimer Cafe: an approach focused on Alzheimer's patients but with remarkable values on the quality of life of their caregivers. AB - BACKGROUND: Alzheimer's disease (AD) affects the global quality of life of persons who suffer from it and their caregivers, because of the behavioral and psychological consequences associated with the pathology and its caring. The Alzheimer Cafe (AC) is one example of approach aimed to help persons and caregivers deal with their disease. AIM: This is a pilot study focusing on the efficacy of AC in relieving caregivers' and persons' burdens due to dementia. METHODS: The quality of life of both caregivers and persons who attended the AC was compared with the quality of life of those who did not. Basic and instrumental daily activities and neuropsychiatric functioning were assessed. Caregivers also answered to general well-being and caregiving burden questionnaires. The evaluation took place at the beginning of the intervention and after 1, 3, 6, 9 and 12 months. RESULTS: Caregivers who joined the AC with their persons with dementia showed to have significantly benefited in the daily care of persons with dementia, in terms of total well-being, vitality, and emotional burden. DISCUSSION: Although improvements were not observed in persons with dementia who attended the AC, significant benefits were reported by their caregivers, suggesting that the intervention may produce better management of social and economic problems and lead to better emotional support. CONCLUSIONS: The AC seems to help families of AD persons to better manage the disease, and also delay the institutionalization of these persons, which is certainly an ambitious goal for an incurable disorder such as Alzheimer's disease. PMID- 29022280 TI - Effects of Bilayer Thickness on the Morphological, Optical, and Electrical Properties of Al2O3/ZnO Nanolaminates. AB - This report mainly focuses on the investigation of morphological, optical, and electrical properties of Al2O3/ZnO nanolaminates regulated by varying bilayer thicknesses. The growth mechanism of nanolaminates based on atomic layer deposition and Al penetration into ZnO layer are proposed. The surface roughness of Al2O3/ZnO nanolaminates can be controlled due to the smooth effect of interposed Al2O3 layers. The thickness, optical constants, and bandgap information of nanolaminates have been investigated by spectroscopic ellipsometry measurement. The band gap and absorption edge have a blue shift with decreasing the bilayer thickness on account of the Burstein-Moss effect, the quantum confinement effect and the characteristic evolution of nanolaminates. Also, the carrier concentrations and resistivities are found to be modified considerably among various bilayer thicknesses. The modulations of these properties are vital for Al2O3/ZnO nanolaminates to be used as transparent conductor and high resistance layer in optoelectronic applications. PMID- 29022279 TI - The role of alpha1- and alpha2-adrenoceptor subtypes in the vasopressor responses induced by dihydroergotamine in ritanserin-pretreated pithed rats. AB - BACKGROUND: Dihydroergotamine (DHE) is an acute antimigraine agent that displays affinity for dopamine D2-like receptors, serotonin 5-HT1/2 receptors and alpha1/alpha2-adrenoceptors. Since activation of vascular alpha1/alpha2 adrenoceptors results in systemic vasopressor responses, the purpose of this study was to investigate the specific role of alpha1- and alpha2-adrenoceptors mediating DHE-induced vasopressor responses using several antagonists for these receptors. METHODS: For this purpose, 135 male Wistar rats were pithed and divided into 35 control and 100 pretreated i.v. with ritanserin (100 MUg/kg; to exclude the 5-HT2 receptor-mediated systemic vasoconstriction). Then, the vasopressor responses to i.v. DHE (1-3100 MUg/kg, given cumulatively) were determined after i.v. administration of some alpha1/alpha2-adrenoceptor antagonists. RESULTS: In control animals (without ritanserin pretreatment), the vasopressor responses to DHE were: (i) unaffected after prazosin (alpha1; 30 MUg/kg); (ii) slightly, but significantly, blocked after rauwolscine (alpha2; 300 MUg/kg); and (iii) markedly blocked after prazosin (30 MUg/kg) plus rauwolscine (300 MUg/kg). In contrast, after pretreatment with ritanserin, the vasopressor responses to DHE were: (i) attenuated after prazosin (alpha1; 10 and 30 MUg/kg) or rauwolscine (alpha2; 100 and 300 MUg/kg); (ii) markedly blocked after prazosin (30 MUg/kg) plus rauwolscine (300 MUg/kg); (iii) attenuated after 5 methylurapidil (alpha1A; 30-100 MUg/kg), L-765,314 (alpha1B; 100 MUg/kg), BMY 7378 (alpha1D; 30-100 MUg/kg), BRL44408 (alpha2A; 100-300 MUg/kg), imiloxan (alpha2B; 1000-3000 MUg/kg) or JP-1302 (alpha2C; 1000 MUg/kg); and (iv) unaffected after the corresponding vehicles (1 ml/kg). CONCLUSION: These results suggest that the DHE-induced vasopressor responses in ritanserin-pretreated pithed rats are mediated by alpha1- (probably alpha1A, alpha1B and alpha1D) and alpha2- (probably alpha2A, alpha2B and alpha2C) adrenoceptors. These findings could shed light on the pharmacological profile of the vascular side effects (i.e. systemic vasoconstriction) produced by DHE and may lead to the development of more selective antimigraine drugs devoid vascular side effects. PMID- 29022281 TI - Isolated Limb Perfusion and Infusion for Extremity Soft Tissue Sarcoma: A Contemporary Systematic Review and Meta-Analysis. AB - BACKGROUND: Isolated limb perfusion (ILP) and isolated limb infusion (ILI) have been variably used in recent years for the treatment of locally advanced or marginally resectable extremity soft tissue sarcomas (STSs). We performed a systematic review and meta-analysis of contemporary studies to further characterize treatment patterns and outcomes. METHODS: PubMed was queried for articles published in or after the year 2000, in the English language, with > 10 patients, and with adequate outcome data following ILP/ILI. Descriptive aggregate statistics were performed. RESULTS: Nineteen studies that met the inclusion criteria were identified, with a total of 1288 patients. Weighted mean patient age was 55.9 years and 52% were male. The majority underwent ILP (88%) versus 12% for ILI, and chemotherapeutic regimens used were as follows: (1) melphalan with tumor necrosis factor (TNF)-alpha (78%), (2) melphalan +/- actinomycin (10%), and (3) other regimens (12%). Most common histologies treated were malignant fibrous histiocytoma (21%), liposarcoma (16%), synovial (11%) and leiomyosarcoma (7%). Aggregate overall response rate (ORR) post-procedure was 73.3%, with 25.8% demonstrating a complete response (CR). Similar unadjusted ORRs were noted in the melphalan treatment groups with and without TNFalpha (72.0 and 67.0%, respectively; p = 0.27). Grade III toxicity was observed in 15.4% of patients, and grade IV/V toxicity was observed in 6.0% of patients. Overall limb salvage rate was 73.8% and median time to local (in-field) progression ranged from 4 to 28 months (weighted median 22.1 months). CONCLUSION: ILP and ILI for extremity STS can be safely performed with appreciable response rates and significant limb salvage rates. Further study is needed to identify optimal treatment regimens by histology. PMID- 29022282 TI - Analysis of five cases of human herpesvirus-6 myelitis among 121 cord blood transplantations. AB - Reports of myelitis associated with human herpesvirus-6 (HHV-6) following allogeneic transplantation are rare. Of 121 cases of cord blood transplantation (CBT) performed at Nagano Red Cross Hospital, five cases (4.1%) of HHV-6 myelitis developed at around the time of engraftment. The major symptom identified in all five patients was superficial pain or pruritus linked to segmental levels of the spinal cord. Other identified symptoms were fever or low-grade fever in all five patients, autonomic nerve disorder in four patients, bladder and rectal disturbance in two patients, and extrapyramidal disorder in two patients. These symptoms were experienced primarily 16-39 days after CBT. HHV-6 PCR tests were all positive for cerebrospinal fluid and for plasma. Of the four cases tested by magnetic resonance imaging (MRI), three showed spinal cord abnormality. Antiviral therapy using foscarnet or ganciclovir was effective in every case. Although one case treated from 12 days after onset experienced long-term pain resembling postherpetic neuralgia, symptoms in the four cases were completely relieved after antiviral therapy. In summary, the major symptoms of HHV-6 myelitis were superficial pain linked to segmental levels of the spinal cord. Prognosis may be improved by early initiation of antiviral therapy. PMID- 29022284 TI - Correction to: Lipophilic gold(I) complexes with 1,3,4-oxadiazol-2-thione or 1,3 thiazolidine-2-thione moieties: synthesis and their cytotoxic and antimicrobial activities. AB - This article has been corrected. One of the author names was given incorrect. Please find in this erratum the correct author name: "Heloiza Diniz Nicolella" that should be regarded as final by the reader. PMID- 29022285 TI - Macular Hole Development After Vitrectomy for Floaters: A Case Report. AB - INTRODUCTION: The purpose of this report is to describe a case of macular hole development after vitrectomy for floaters with induction of posterior vitreous detachment. CASE REPORT: A 44-year-old otherwise healthy man presented with visually debilitating floaters in his right eye; these had been present for more than 2 years. Preoperative examination was unremarkable in both eyes, apart from some degree of vitreous degeneration in the right eye. Preoperative visual acuity was 20/20 bilaterally. A 25-gauge transconjunctival sutureless pars plana complete vitrectomy with induction of posterior vitreous detachment was performed in the right eye. Upon examination 1 month after surgery, a small full-thickness macular hole was detected in the right eye. Visual acuity was diminished to 20/80. The macular hole was closed after a second vitrectomy with internal limiting membrane peeling and gas tamponade. CONCLUSION: Macular hole development should be listed as a possible complication of vitrectomy for visually debilitating floaters when a posterior vitreous detachment is induced during surgery. PMID- 29022283 TI - Ex Situ Hepatectomy and Liver Autotransplantation for Cholangiocarcinoma. AB - BACKGROUND: Hepatic resection of tumors invading the retrohepatic vena cava and hepatic veins are a challenge for surgeons, who consider them unresectable most of the time.1 , 2 Ex situ hepatectomy and liver autotransplantation has developed to improve resectability of these malignancies.3,4 METHODS: The patient was a 51 year-old man who had jaundice secondary to a intrahepatic cholangiocarcinoma 7 cm in diameter in the right lobe of the liver and the caudate lobe. A volumetric scan showed a future liver remnant (segments 2 and 3) not sufficient according to the body weight. The patient was considered to be unresectable by conventional resection due to the critical invasion to the retrohepatic vena cava together with the three hepatic veins. Therefore, an ex vivo extended right hepatectomy and autotransplantation were indicated. RESULTS: The patient underwent biliary decompression through a percutaneous transhepatic catheter and right portal vein embolization for left lobe hypertrophy. During the surgery, the liver was removed with the retrohepatic vena cava, which was replaced by a prosthetic graft without a veno-venous bypass. Ex vivo extended right hepatectomy was performed, and a prosthetic graft was used to replace the vena cava where the remaining left hepatic vein was anastomosed. The surgery duration was 9 h, and the anhepatic time was 4.5 h. The postoperative hospital stay was 19 days, and at this writing, 3 years later, the patient is disease-free. CONCLUSION: Ex vivo hepatectomy without veno-venous bypass should be considered a valid therapeutic option for selected patients with cholangiocarcinoma invading the retrohepatic vena cava. PMID- 29022287 TI - Correction to: Occurrence and distribution of bovine TB pathology by age, sex, and breed of cattle slaughtered in Gusau Abattoir, Zamfara State Nigeria. AB - Unfortunately the Abstract was missing in the original version of this article. The Abstract is published below. Abstract. This study was aimed to record gross lesions suggestive of bovine tuberculosis amongst cattle slaughtered in Gusau abattoir Zamfara State, Nigeria. PMID- 29022286 TI - Best clinical practice guidance for local analgesia in paediatric dentistry: an EAPD policy document. AB - BACKGROUND: The European Academy of Paediatric Dentistry (EAPD) proposes this best-practice guidance to help practitioners to decide when and how to use local analgesia to control pain in children, adolescents, and medically compromised individuals during the delivery of oral health care. METHODS: A search of different databases was conducted using all terms relevant to the subject. Relevant papers were identified after a review of their titles, abstracts or full papers. Three workshops were held during the corresponding EAPD interim seminar in Torino (Italy) in 2017. Several statements were agreed upon and, furthermore, knowledge gaps were identified. RESULTS: An important outcome was that when local analgesia administered appropriately-correct choice of agent(s) and dosage, proper route of administration-it is, firstly, clinically effective for pain control in treating children and, secondly, it carries a very low risk of morbidity including adverse or side-effects. Furthermore, several gaps in knowledge were identified during the workshop which indicates future research needs. Most importantly it remains unsatisfactory that in several European countries the most frequently used injectable local analgesic agent, articaine, is not approved for usage in children below the age of 4 years. CONCLUSION: When considering the dental demand to treat vulnerable (medically compromised) children and adolescents in a safe, painless, less-invasive and effective way, there seems to be an urgent need to close these gaps in knowledge. PMID- 29022288 TI - Comparing the effectiveness of general dietary advice versus a very low energy diet in an obese outpatient population in Australia. AB - PURPOSE: Obesity is a major public health burden. Outpatient clinics are an essential resource for individuals with obesity to access advice for weight loss management. The aim of this study was to compare anthropometric and weight loss outcomes between participants receiving general dietary (GD) advice, and those on a very low energy diet (VLED) under non-trial conditions. METHODS: Data from 276 adults with obesity attending a multidisciplinary weight management clinic were analysed. Changes in anthropometry, body composition, and blood pressure (BP) over 12 months were analysed using linear mixed-effects models. RESULTS: Males on the GD demonstrated statistically greater reductions in body weight (BW), BMI, percent fat mass (FM), systolic BP, waist and hip circumference (p < 0.01). Changes in males on a VLED did not reach significance. Females showed statistically significant reductions in BW, BMI, waist and hip circumference regardless of dietary intervention (p < 0.01); those on the GD significantly reduced percent FM (p < 0.001). Females on a VLED had statistically greater reductions in BW, BMI and systolic BP compared to those on the GD. No effect of exercise physiologist was observed in this study. Participants prescribed a GD attended for significantly longer than those on a VLED (p < 0.05), irrespective of gender. At 12 months, 14.3 and 4.5% of males and females on a VLED were still attending, compared to 10.6 and 4.5% on the GD. CONCLUSIONS: In this retrospective study, females in both dietary intervention groups achieved significant changes across multiple measures. Only men receiving GD advice demonstrated significant changes. LEVEL OF EVIDENCE: Level II-2. PMID- 29022289 TI - Cloning of Autophagy-Related MicroRNAs. AB - Autophagy is a cellular survival pathway that is necessary for the degradation of cellular constituents such as long-lived proteins and damaged organelles. Conditions resulting in cellular stress such as starvation or hypoxia might activate autophagy. Being at the crossroads of various cellular response pathways, dysregulation of autophagy might result in pathological states including cancer and neurodegenerative diseases. Autophagy has also been shown to participate in stemness. MicroRNAs were introduced as novel regulators of autophagy, and accumulating results underlined the fact that they constituted an important layer of biological control mechanism on the autophagic activity.MicroRNAs are protein noncoding small RNAs that control cellular levels of transcripts and proteins through posttrancriptional mechanisms. Novel miRNAs in human and mouse genomes are yet to be identified. Considering the emerging role of autophagy in health and disease, identification of novel autophagy regulating miRNAs and determination of relations between miRNA expression and physiological and pathological conditions might contribute to a better understanding of mechanisms governing health and disease. High-throughput techniques were developed for miRNA profiling, yet for a thorough characterization and miRNA target determination, miRNA cloning remains as an important step. Here, we describe a modified miRNA cloning method for the characterization of novel autophagy-regulating miRNAs. PMID- 29022290 TI - Comparison of Safety and Efficacy of Botox and Neuronox in the Management of Benign Essential Blepharospasm: A Split-face Study. AB - PURPOSE: To compare the efficacy and safety of Botox and Neuronox in the management of benign essential blepharospasm (BEB). METHODS: We performed a triple-masked, randomized control study to compare Botox and Neuronox in 48 eyes of 24 patients with BEB. All 24 patients randomly received Botox or Neuronox in the periorbital region in a masked, randomized split-face manner, keeping the injection sites and doses uniform. The toxin preparation, injection, and clinical evaluations were done by three independent observers. Objective outcome measures included improvement in the severity of spasm, grading of the functional visual status, changes in palpebral fissure height, lagophthalmos, superficial punctate keratitis and Schirmer's test at 2 weeks, 6 weeks, and upon conclusion of the effect of the toxin. Subjective outcome measures included duration of the effect and a forced choice stating which half of the face was better. Evaluations were performed through clinical measurements, external digital photography, and high definition videography. RESULTS: The mean duration of relief from spasms was 3.78 months (standard deviation, 1.58 months; range, 1 to 6 months). The improvement in the objective parameters like severity of spasm and functional visual status was statistically significant at the 2-week and 6-week follow-up visits (p < 0.0001). The changes in palpebral fissure height, lagophthalmos, and superficial punctate keratitis were equally observed in both groups. At 2 and 6 weeks, three of 24 (12.5%) and one of 24 (4%) patients, respectively, reported an unequal effect between the two sides of the face, but this difference was not statistically significant. At final follow-up (conclusion of the toxin effect), patients reported equal effect with no preference for either hemiface. No statistically significant differences were found in the comparative analysis between the Neuronox and Botox groups. CONCLUSIONS: Neuronox and Botox are comparable in terms of their safety and efficacy in the management of BEB. PMID- 29022291 TI - Comparison of Contact Lens Corrected Quality of Vision and Life of Keratoconus and Myopic Patients. AB - PURPOSE: To compare and analyze changes in vision quality, subjective symptoms, and psycho-social satisfaction in keratoconus and myopic patients following the wearing of contact lenses. METHODS: This study enrolled 25 keratoconus and 25 myopic patients with corrected vision over 0.8 according to the Snellen chart due to treatment with contact lenses. Patients were surveyed prior to the wearing of contact lenses, and again after three months of contact lens usage with a questionnaire about quality of vision and life. The changes in visual function, visual symptoms, and psycho-social well-being before and after contact lens usage were analyzed. RESULTS: The keratoconus patients' overall degree of satisfaction was higher than the overall degree of satisfaction of myopic patients, and the motivation for contact lens usage and purpose of contact lens treatment were different in the two groups. Keratoconus patients experienced greater changes in satisfaction, particularly in satisfaction during night activities, short distance work, and the reading of fine print. Furthermore, they experienced fewer dry eye symptoms but greater foreign body sensations than patients with myopia following treatment with contact lenses. No statistically significant differences in social role functions existed between the two groups. Keratoconus patients had a lower expectation of visual acuity recovery before treatment with contact lenses (Mann-Whitney U-test, p = 0.049) compared to myopic patients, and more anxiety about vision loss following treatment (Wilcoxon signed-rank test, p = 0.018) compared to their level of anxiety about vision loss before treatment with contact lenses. CONCLUSIONS: Although the same treatment was applied, keratoconus and myopic patients experienced different types of discomfort and areas of improvement in contact lens corrected vision. Therefore, not only corrected vision, but also subsequent improvement and discomfort outcomes should be considered by patients when choosing contact lens treatment. For patients with mild keratoconus, contact lens treatment may be an efficacious first treatment modality. PMID- 29022293 TI - Correlation between Uncorrected Visual Acuity and Macular Distortion in Idiopathic Epiretinal Membrane Patients. AB - PURPOSE: To evaluate the association between degree of retinal abnormalities and uncorrected visual acuity (UCVA) in idiopathic epiretinal membrane (ERM) patients with a small amount of refractive error. METHODS: We retrospectively reviewed 49 eyes (37 patients) of idiopathic ERM patients. We investigated the association between visual acuity and macular status (central macular thickness [CMT], outer retinal integrity score, and inner retinal irregularity index) that was assessed by optical coherence tomography using multiple linear regression analysis. We defined visual acuity difference (VAD) as the difference between UCVA and best corrected visual acuity (BCVA). We divided patients into two groups according to VAD size and compared clinical characteristics between the two groups. We also investigated factors associated with VAD using multiple linear regression analysis. RESULTS: BCVA showed significant association with CMT and outer retinal integrity score, while UCVA showed significant association with CMT and inner retinal irregularity index. Patients with a large VAD showed a similar level of BCVA compared to the small VAD group (logarithm of the minimum angle of resolution [logMAR], large VAD group 0.11 +/- 0.11 vs. small VAD group 0.13 +/- 0.12, p = 0.585). However, UCVA was worse (logMAR, large VAD group 0.44 +/- 0.14 vs. small VAD group 0.18 +/- 0.14, p < 0.001) and inner retinal irregularity was higher (large VAD group 1.06 +/- 0.04 vs. small VAD group 1.04 +/- 0.03, p < 0.001) in patients with a large VAD. On multiple linear regression analysis, the absolute value of spherical equivalent (standardized coefficient beta 0.521, p < 0.001) and inner retinal irregularity index (standardized coefficient beta 0.448, p < 0.001) were significantly associated with VAD. CONCLUSIONS: UCVA was associated with inner retinal irregularity in idiopathic ERM patients with a mild degree of refractive error. Inner retinal irregularity was also associated with degree of VAD, suggesting that the effect of refractive error correction is greater in patients with more distorted retina. PMID- 29022292 TI - Changes in Macular Retinal Layers and Peripapillary Nerve Fiber Layer Thickness after 577-nm Pattern Scanning Laser in Patients with Diabetic Retinopathy. AB - PURPOSE: The aim of this study was to evaluate the changes in thickness of each macular retinal layer, the peripapillary retinal nerve fiber layer (RNFL), and central macular thickness (CMT) after 577-nm pattern scanning laser (PASCAL) photocoagulation in patients with diabetic retinopathy. METHODS: This retrospective study included 33 eyes with diabetic retinopathy that underwent 577 nm PASCAL photocoagulation. Each retinal layer thickness, peripapillary RNFL thickness, and CMT were measured by spectral-domain optical coherence tomography before 577-nm PASCAL photocoagulation, as well as at 1, 6, and 12 months after 577-nm PASCAL photocoagulation. Computerized intraretinal segmentation of optical coherence tomography was performed to identify the thickness of each retinal layer. RESULTS: The average thickness of the RNFL, ganglion cell layer, inner plexiform layer, inner nuclear layer, inner retinal layer, and CMT at each follow up increased significantly from baseline (p < 0.001), whereas that of the retinal pigment epithelium at each follow-up decreased significantly from baseline (p < 0.001). The average thickness of the peripapillary RNFL increased significantly at one month (p < 0.001). This thickness subsequently recovered to 7.48 MUm, and there were no significant changes at six or 12 months compared to baseline (p > 0.05). CONCLUSIONS: Each macular retinal layer and CMT had a tendency to increase for one year after 577-nm PASCAL photocoagulation, whereas the average thickness of retinal pigment epithelium decreased at one-year follow-up compared to the baseline. Although an increase in peripapillary RNFL thickness was observed one month after 577-nm PASCAL photocoagulation, there were no significant changes at the one-year follow-up compared to the baseline. PMID- 29022294 TI - Epiretinal Membrane: Prevalence and Risk Factors from the Korea National Health and Nutrition Examination Survey, 2008 through 2012. AB - PURPOSE: To investigate the prevalence and risk factors for an epiretinal membrane (ERM) in Korean population. METHODS: Using the database of the Korea National Health and Nutrition Examination Survey from 2008 through 2012, 14,772 participants 40 years of age or older with gradable fundus photographs were included. The presence of ERM was determined by using fundus photographs. The prevalence of ERM was estimated and possible risk factors including systemic factors, nutritional status, and blood tests were analyzed via multiple logistic regression analyses. RESULTS: The prevalence of ERM was 2.9% (95% confidence interval [CI], 2.6% to 3.3%). On multiple logistic regression analysis, the prevalence of ERM was affected by age. The odds ratios (ORs) against the forties were 2.70, 5.48, and 5.69 in the fifties, sixties, and seventies, respectively. ERM was also significantly affected by cataract surgery (OR, 2.82; 95% CI, 2.08 to 3.81) and by the increase in intake of 100-mg calcium (OR, 1.05; 95% CI, 1.00 to 1.11). ERM had negative associations with red blood cell count (OR, 0.66; 95% CI, 0.45 to 0.95). CONCLUSIONS: The estimated nation-wide prevalence of ERM in Korea is 2.9%. The presence of ERM in the general population is associated with age, cataract surgery, increased dietary calcium, and a low red blood cell count. PMID- 29022295 TI - Retinopathy of Prematurity-assist: Novel Software for Detecting Plus Disease. AB - PURPOSE: To design software with a novel algorithm, which analyzes the tortuosity and vascular dilatation in fundal images of retinopathy of prematurity (ROP) patients with an acceptable accuracy for detecting plus disease. METHODS: Eighty seven well-focused fundal images taken with RetCam were classified to three groups of plus, non-plus, and pre-plus by agreement between three ROP experts. Automated algorithms in this study were designed based on two methods: the curvature measure and distance transform for assessment of tortuosity and vascular dilatation, respectively as two major parameters of plus disease detection. RESULTS: Thirty-eight plus, 12 pre-plus, and 37 non-plus images, which were classified by three experts, were tested by an automated algorithm and software evaluated the correct grouping of images in comparison to expert voting with three different classifiers, k-nearest neighbor, support vector machine and multilayer perceptron network. The plus, pre-plus, and non-plus images were analyzed with 72.3%, 83.7%, and 84.4% accuracy, respectively. CONCLUSIONS: The new automated algorithm used in this pilot scheme for diagnosis and screening of patients with plus ROP has acceptable accuracy. With more improvements, it may become particularly useful, especially in centers without a skilled person in the ROP field. PMID- 29022296 TI - Efficacy and Safety of Intracameral Bevacizumab for Treatment of Neovascular Glaucoma. AB - PURPOSE: To evaluate the long-term efficacy and safety of intracameral bevacizumab in patients with neovascular glaucoma. METHODS: This retrospective study included 26 eyes of 26 neovascular glaucoma patients who received intracameral bevacizumab injection between January 2013 and May 2015, and were followed-up for at least 1 year. All patients were treated with topical and/or systemic intraocular pressure (IOP)-lowering medications, intracameral bevacizumab, and panretinal photocoagulation (PRP). The main outcome measures were changes in visual acuity, IOP, and neovascularization of the iris (NVI) and the anterior chamber angle (NVA). To assess the safety of intracameral bevacizumab, corneal endothelial changes were also determined using specular microscopy. Patients whose IOP was uncontrolled received IOP-lowering surgery. Clinical factors associated with IOP-lowering surgery were also investigated. RESULTS: In all patients, intracameral bevacizumab resulted in a rapid and marked reduction of IOP, NVI, and NVA within 1 week. At 12 months after initial injection, 19 of 26 eyes (73%) underwent IOP-lowering surgery. The average interval between initial injection and surgical treatment was 33.6 +/- 26.9 days. Baseline IOP (p = 0.018), NVA grade (p = 0.029), and incomplete PRP (p = 0.005) were identified as predictive factors for IOP-lowering surgery. During the follow up period, there were no statistically significant corneal endothelial changes after intracameral bevacizumab injection. CONCLUSIONS: During 1 year of follow-up after intracameral bevacizumab, the procedure was found to be safe for the corneal endothelium. However, the IOP-lowering effect was transient, and 73% of patients eventually required IOP-lowering surgery. Predictive factors for IOP lowering surgery were high baseline IOP and NVA grade, and incomplete PRP. PMID- 29022297 TI - Analysis of the Retinal Nerve Fiber Layer Thickness in Alzheimer Disease and Mild Cognitive Impairment. AB - PURPOSE: To compare the retinal nerve fiber layer (RNFL) as well as the macula volume and thickness in the eyes of age-matched healthy controls with no cognitive disabilities with those of elderly people with mild cognitive impairment (MCI) or Alzheimer disease (AD). We used optical coherence tomography (OCT) to determine the effectiveness of the above quantities for early diagnosis of MCI or AD. METHODS: Ninety eyes were considered in this study, split between 30 normal eyes, 30 eyes from patients with MCI, and 30eyes from patients with AD. All subjects underwent ophthalmologic and cognitive examinations, and measurements of the RNFL thickness as well as macular volume and thickness were taken for all patients using OCT. RESULTS: The mean RNFL thickness upon OCT was significantly thinner in the AD group than in the MCI group (p = 0.01). The RNFL was thinner in the superior quadrant in patients with AD when compared to the healthy controls (p = 0.03). The RNFL thicknesses in the inferior, nasal, and temporal quadrants did not differ significantly between the groups. Measurements in the 12 clock-hour zones revealed that zone 11 had a significantly thinner RNFL in the AD group as compared with the healthy control group (p = 0.02). In zone 2, the MCI group had a significantly thinner RNFL than the AD group (p = 0.03). CONCLUSIONS: Our OCT findings revealed a neuroanatomic difference in the RNFL thickness among the three groups, i.e., the AD, MCI, and healthy control groups. This suggests that a change in average RNFL thickness could be a meaningful index for diagnosing early AD. PMID- 29022298 TI - Patient Awareness of Cataract and Age-related Macular Degeneration among the Korean Elderly: A Population-based Study. AB - PURPOSE: Age-related eye disease is often considered part of natural aging. Lack of awareness of eye conditions can result in missed treatment. We investigated the rates of awareness of cataract and age-related macular degeneration, the most common age-related eye-diseases, and the associated factors among elderly Koreans. METHODS: We identified 7,403 study subjects (>=40 years old) with cataract or age-related macular degeneration based on ophthalmic examination results during the 5th Korean National Health and Nutrition Examination Survey conducted between 2010 and 2012. We assessed whether patients were aware of their eye condition based on a previous diagnosis by a physician. RESULTS: The average awareness rate over the 3-year study period was 23.69% in subjects with cataract and 1.45% in subjects with age-related macular degeneration. Logistic regression analysis showed that patients with cataract were more likely to recognize their condition if they had myopia (odds ratio, 2.08), hyperopia (odds ratio, 1.33), family history of eye disease (odds ratio, 1.44), or a past eye examination (odds ratio, 4.07-29.10). The presence of diabetes mellitus was also a significant predictor of patient awareness of cataract (odds ratio, 1.88). CONCLUSIONS: Poor patient recognition of eye disease among the Korean elderly highlights the seriousness of this potential public health problem in our aging society. Pre existing eye-related conditions and diabetes were significant predictors of awareness; therefore, patients in frequent contact with their doctors have a greater chance of detecting eye disease. PMID- 29022299 TI - Incidence and Risk Factors of Cystoid Macular Edema after Vitrectomy with Silicone Oil Tamponade for Retinal Detachment. AB - PURPOSE: To investigate the incidence and risk factors of cystoid macular edema (CME) after silicone oil (SO) injection for retinal detachment. METHODS: Fifty eight patients with retinal detachment treated by vitrectomy with SO tamponade during 2011 to 2015 were retrospectively assigned to CME and non-CME groups. Patients underwent complete ophthalmological examination, including color fundus photography and preoperative and postoperative optical coherence tomography. Risk factors for CME during SO tamponade were determined by regression analyses. RESULTS: Of the 58 eyes, 21 (36.2%) exhibited CME. The presence of posterior staphyloma in the CME group was significantly more frequent than in the non-CME group (p = 0.026). There were no significant differences in other demographic or clinical characteristics between the CME and non-CME groups. Significant correlations were observed between CME after vitrectomy with SO tamponade and the presence of posterior staphyloma (odds ratio, 4.03; p = 0.031). Of the 21 eyes with CME, 13 underwent SO removal, among which 11 experienced resolution of CME with or without further intervention. CONCLUSIONS: The presence of posterior staphyloma is significantly associated with CME after vitrectomy with SO tamponade. Patients with retinal detachment exhibiting posterior staphyloma should be evaluated for potential CME during SO tamponade. PMID- 29022300 TI - Photoacoustic imaging of lymphatic pumping. AB - The lymphatic system is responsible for fluid homeostasis and immune cell trafficking and has been implicated in several diseases, including obesity, diabetes, and cancer metastasis. Despite its importance, the lack of suitable in vivo imaging techniques has hampered our understanding of the lymphatic system. This is, in part, due to the limited contrast of lymphatic fluids and structures. Photoacoustic imaging, in combination with optically absorbing dyes or nanoparticles, has great potential for noninvasively visualizing the lymphatic vessels deep in tissues. Multispectral photoacoustic imaging is capable of separating the components; however, the slow wavelength switching speed of most laser systems is inadequate for imaging lymphatic pumping without motion artifacts being introduced into the processed images. We investigate two approaches for visualizing lymphatic processes in vivo. First, single-wavelength differential photoacoustic imaging is used to visualize lymphatic pumping in the hindlimb of a mouse in real time. Second, a fast-switching multiwavelength photoacoustic imaging system was used to assess the propulsion profile of dyes through the lymphatics in real time. These approaches may have profound impacts in noninvasively characterizing and investigating the lymphatic system. PMID- 29022302 TI - [N-terminomics: proteomic strategies for protein N-terminal profiling]. AB - Protein N-termini, as the beginning of translation, has a major impact on protein's biological functions. Its sequence and various post-translational modifications often affect protein activation, stability and cellular localization, regulate the signal transduction, and even determine protein's final destiny. The systematic study of protein N-termini can clarify the vital function of the N-terminus, and provide in-depth knowledge of the multifunctional roles that protein has played in diverse biological processes. In addition, N terminal research may help us to achieve high-coverage proteomics and re-annotate genomics. Combined with our own research, this review highlights recent progress of N-terminomics, especially some important enrichment strategies and technologies based on mass spectrometry. PMID- 29022301 TI - Flexible needle with integrated optical coherence tomography probe for imaging during transbronchial tissue aspiration. AB - Transbronchial needle aspiration (TBNA) of small lesions or lymph nodes in the lung may result in nondiagnostic tissue samples. We demonstrate the integration of an optical coherence tomography (OCT) probe into a 19-gauge flexible needle for lung tissue aspiration. This probe allows simultaneous visualization and aspiration of the tissue. By eliminating the need for insertion and withdrawal of a separate imaging probe, this integrated design minimizes the risk of dislodging the needle from the lesion prior to aspiration and may facilitate more accurate placement of the needle. Results from in situ imaging in a sheep lung show clear distinction between solid tissue and two typical constituents of nondiagnostic samples (adipose and lung parenchyma). Clinical translation of this OCT-guided aspiration needle holds promise for improving the diagnostic yield of TBNA. PMID- 29022303 TI - [Progress in omics research of Aspergillus niger]. AB - Aspergillus niger, as an important industrial fermentation strain, is widely applied in the production of organic acids and industrial enzymes. With the development of diverse omics technologies, the data of genome, transcriptome, proteome and metabolome of A. niger are increasing continuously, which declared the coming era of big data for the research in fermentation process of A. niger. The data analysis from single omics and the comparison of multi-omics, to the integrations of multi-omics based on the genome-scale metabolic network model largely extends the intensive and systematic understanding of the efficient production mechanism of A. niger. It also provides possibilities for the reasonable global optimization of strain performance by genetic modification and process regulation. We reviewed and summarized progress in omics research of A. niger, and proposed the development direction of omics research on this cell factory. PMID- 29022304 TI - [Advances in metabolic engineering of Escherichia coli for isoprene biosynthesis]. AB - As an important industrial chemical, isoprene is mainly used as a precursor for synthetic rubbers. In addition, it also has wide applications in the field of pharmaceutical and chemical intermediates, food, adhesives and aviation fuel. Compared with conventional petrochemical routes, production of isoprene in microbial systems has been the research focus considering environment friendly and sustainable development features. This article summarizes the metabolic pathways and key enzymes of isoprene biosynthesis, reviews current methods and strategies in improving isoprene production of Escherichia coli, and also gives some basic ideas and expectation. PMID- 29022305 TI - [Advances and prospects of taxol biosynthesis by endophytic fungi]. AB - Taxol is one of the most important chemotherapeutic drugs against cancer. Taxol has been mainly extracted from the bark of yews for a long time. However, methods for the extraction of taxol from the bark of Taxus species were inefficient and environmentally costly. As a result of the high ecological toll exacted on trees with the potential for Pacific yew extinction, investigators began to look for other methods of taxol production. Recently, increasing efforts have been made to develop alternative means of taxol production, such as using complete chemical synthesis, semi-synthesis, Taxus spp. plant cell culture and microbe fermentation. Using microbe fermentation in the production of taxol would be a very prospective method for obtaining a large amount of taxol. Therefore, it is necessary to understand the molecular basis and genetic regulation mechanisms of taxol biosynthesis by endophytic fungi, which may be helpful to construct the genetic engineering strain with high taxol output. In this paper, the taxol biosynthesis pathway from Taxus cells and the advantages of taxol biosynthesis by endophytic fungi were discussed. The study on the isolation and biodiversity of taxol-producing endophytic fungi and the taxol biosynthesis related genes are also discussed. PMID- 29022306 TI - [Preparation and characterization of polyhydroxyalkanoate bioplastics with antibacterial activity]. AB - Polyhydroxyalkanoates (PHAs), as a novel class of biopolymer, are attracting more attention due to their diverse material properties and environment-independent biodegradability. Here we report the preparation of PHA exhibiting efficient antibacterial activity by embedding Nisin, a food additive generally recognized as safe, into poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx), a type of PHA with high biocompatibility. We first prepared Nisin-containing PHBHHx films using solvent casting method. Confocal laser scanning microscopy analysis showed that a well-mixed integrated structure of the films with an even distribution of the Nisin particles in the PHBHHx matrices. Then the antimicrobial activity of PHBHHx/Nisin films against Micrococcus luteus was quantified on agar plate by measuring the size of inhibition zone. Cultivation in liquid media further confirmed the releasing of Nisin from the films and the long-time antibacterial activity. Results showed that the threshold of Nisin concentration for long-time and effective inhibition against bacteria growth is 25 MUg/g. These results altogether establish a technological foundation for the application of PHA in biomedicine and food industry. PMID- 29022307 TI - [Expression, purification and characterization of arabinose-5-phosphate isomerase from Arabidopsis thaliana]. AB - Arabinose-5-phosphate isomerase (KdsD) is the first key limiting enzyme in the biosynthesis of 3-deoxy-D-manno-octulosonate (KDO). KdsD gene was cloned into prokaryotic expression vector pET-HTT by seamless DNA cloning method and the amount of soluble recombinant protein was expressed in a soluble form in E. coli BL21 (DE3) after induction of Isopropyl beta-D-1-thiogalactopyranoside (IPTG). The target protein was separated and purified by Ni-NTA affinity chromatography and size exclusion chromatography, and its purity was more than 85%. Size exclusion chromatography showed that KdsD protein existed in three forms: polymers, dimmers, and monomers in water solution, different from microbial KdsD enzyme with the four polymers in water solution. Further, the purified protein was identified through Western blotting and MALDI-TOF MASS technology. The results of activity assay showed that the optimum pH and temperature of AtKdsD isomerase activities were 8.0 and 37 C, respectively. The enzyme was activated by metal protease inhibitor EDTA (5 mmol/L) and inhibited by some metal ions at lower concentration, especially with Co2+ and Cd2+ metal ion. Furthermore, when D arabinose-5-phosphate (A5P) was used as substrate, Km and Vmax of AtKdsD values were 0.16 mmol/L, 0.18 mmol/L.min. The affinity of AtKdsD was higher than KdsD in E. coli combined with substrate. Above results have laid a foundation for the KdsD protein structure and function for its potential industrial application. PMID- 29022308 TI - [Expression and production optimization of sucrose isomerase from Pantoea dispersa in Escherichia coli]. AB - To improve the yield of sucrose isomerase from Pantoea dispersa UQ68J, we studied the effect of different signal peptides and fermentation conditions on sucrose isomerase expression in Escherichia coli. The gene of sucrose isomerase was optimized and expressed in E. coli BL21 (DE3) with native signal peptide which was named as ORI strain. The total and extracellular enzyme activity was 85 and 65 U/mL in the flask, respectively. The mature protein, which started from the 22th amino acid, was connected with the PelB and OmpA signal peptide to construct P22 and O22 strain, respectively. The total activity of P22 reached 138 U/mL, which was 1.6 times of ORI strain. The total activity of O22 strain was similar to that of ORI strain. Induced by 3.0 g/L lactose, the total activity of P22 strain increased to 168 U/mL. In 3 L fermentor, the effects of glycine concentration and induction time were studied. Induction when the DCW reached 18 g/L (OD600=30), with 0.5% glycine, the extracellular enzyme activity reached 1 981 U/mL, and the total enzyme activity reached 2 640 U/mL, which is the highest activity of sucrose isomerase that was expressed in recombinant E. coli. PMID- 29022309 TI - [Construction of an Escherichia coli strain for sensitive detection of arsenite ion in water]. AB - In order to construct an Escherichia coli strain with high sensitivity and specificity to detect arsenic ion using fluorescence as reporter, a sensitive strain to arsenic ion was obtained by knocking out the gene arsB that acts as an arsenic efflux pump. The pET28b vector containing arsenite detecting cassette Pars-arsR-egfp was constructed and then transformed into arsB deleted mutant. Measuring conditions of this constructed whole-cell biosensor were optimized and its linear concentration range, limit of detection and specificity were determined. This modified biosensor was much more sensitive than that using wild type strain as host. The optimal detection range of As3+ concentration was 0.013 to 42.71 MUmol/L, and the limit concentration of detection was as low as 5.13 nmol/L. Thus we successfully improved the sensitivity of arsenite detecting biosensor by modification of E. coli genome, which may provide useful strategies for development and optimization of microbial sensors to detect heavy metals. PMID- 29022310 TI - [In vitro observation of haemolymph melanization and melanin-related biosynthesis enzyme genes in silkworm, Bombyx mori]. AB - The observation statistics suggested that the haemolymph melanization speed of larvae became fast and the growth inhibition of Escherichia coli was strong as the quantities of feeding on mulberry leaves increased. The RT-PCR result showed that the mRNA expressions of melanin biosynthesis enzyme BmTan, BmPo-1, BmYellow f and BmDdc were high in the haemolyph of 5 L 3 d larvae. The qPCR analysis showed Bmtan, Bmddc, Bmyellow, Bmebony and Bmblack, especially Bmddc expression were significantly higher in black disease larvae than in normal larvae. Compared with control, Ddc inhibitors drastically inhibited the lipopolysaccharide-induced haemolymph melanization. In addition, the content of Dopa and Dopamine markedly rose after E. coli injection. These indicated that haemolymph melanization was linked to immune defenses and Bmddc may play a role in melanization response of haemolymph immune in silkworm. PMID- 29022311 TI - [Hyaluronic acid production by Streptococcus iniae and its application in rabbit skin's regeneration]. AB - Hyaluronic acid (HA) is an important biomaterial as the extracellular matrix in human body. We produced HA by fermentation of Streptococcus iniae (Strep.). Production of HA by Strep. was evaluated and further improved by strain mutation by ultraviolet. One strain with higher HA yield and lower content of protein was obtained. Its HA yield increased from (82.3+/-3.3) mg/L to (120+/-10.6) mg/L, and protein decreased from (0.178+/-0.011) mg/L to (0.032+/-0.017) mg/L. The molecular weight (MW) of HA yield from Strep. is about 3.0*105 Da. Using the method of freezing and thawing, HA aqueous solution was transferred into hydrogel. This HA hydrogel, casted on sterilized non-woven fabric, was applied to repair rabbit skin with full-thickness defect. The preliminary results of the animal tests displayed that HA hydrogel obviously reduced the inflammation around the wound and promoted the skin regeneration comparing with the control tests. PMID- 29022312 TI - [Influence of PCR cycle number on microbial diversity analysis through next generation sequencing]. AB - Using of high throughput sequencing technology to study the microbial diversity in complex samples has become one of the hottest issues in the field of microbial diversity research. In this study, the soil and sheep rumen chyme samples were used to extract DNA, respectively. Then the 25 ng total DNA was used to amplify the 16S rRNA V3 region with 20, 25, 30 PCR cycles, and the final sequencing library was constructed by mixing equal amounts of purified PCR products. Finally, the operational taxonomic unit (OUT) amount, rarefaction curve, microbial number and species were compared through data analysis. It was found that at the same amount of DNA template, the proportion of the community composition was not the best with more numbers of PCR cycle, although the species number was much more. In all, when the PCR cycle number is 25, the number of species and proportion of the community composition were the most optimal both in soil or chyme samples. PMID- 29022313 TI - [Prokaryotic expression and purification of Chlamydomonas reinhardtii intraflagellar transport protein 46(IFT46) and preparation of polyclonal antibody]. AB - IFT46 is one of the important components of intraflagellar transport complex B in Chlamydomonas reinhardtii, and plays important roles in the assembly, movement and perception of ciliary. To study its functional mechanism, a GST-tagged and an MBP-tagged prokaryotic expression plasmid, pGEX-2T-ift46 and pMAL-C2X-ift46 were constructed, respectively, by inserting ift46 into the pGEX-2T and pMAL-C2X vector, and then transformed into Escherichia coli BL21 (DE3) for protein expression. SDS-PAGE (15%) analysis results showed that the molecular weights of the fusion protein GST-IFT46 and MBP-IFT46 were 70 kDa and 86 kDa, respectively. We used the fusion protein GST-IFT46 purified by affinity adsorption purification (more than 95% purity) for immunity to New Zealand white rabbits. The 5th immune serum was collected and the antibody titer was determined to be 256 000 by ELISA. The antiserum was purified by Protein A affinity adsorption purification and immobilized MBP-IFT46 purification, and the specificity of polyclonal antibodies was evaluated by Western blotting and immunofluorescence. Results showed that the polyclonal antibody prepared could specifically and precisely bind IFT46 in C. reinhardtii, and IFT46 was mainly concentrated at basal body regions and few localized along the entire length of the flagellum as punctuated dots, which will make a foundation to further study the mechanism of IFT46 in cilia related diseases such as obesity, diabetes and polycystic kidney disease. PMID- 29022314 TI - [Expression of the reporter LacZ driven by human dentin sialophosphoprotein promoter in human dental mesenchymal cells]. AB - The expression of dentin sialophosphoprotein (DSPP) is the marker for cells differentiated into odontoblasts. This study attempted to analyze the DSPP promoter and build the reporter LacZ expression system driven by this promoter, which allows convenient and quick detection of odontoblast cells. First, we separated the human dental mesenchymal cells in which the expression of DSPP can be effectively induced by dexamethasone. Second, four 5' flanking regions of human DSPP gene (- 4 000-+54, -2 500-+54, -1 447-+54 and -1 027-+54) were analyzed, the results showed that the highest promoter activity lied in the -2 500-+54 region. The promoter activity is reduced when the 5' flanking region was extended from -2 500 to -4 000 bp upstream from the transcription start site; The promoter activity are also decreased when the 5' flanking regions were shorted from -2 500 to -1 447 bp and from -1 447 to -1 027 bp, indicating that potential suppresser elements are lied in the region between -4 000 and -2 500 bp and potential activator elements are lied in the region between -2 500 and -1 027 bp. Then we constructed the lentiviral report vector phDSPP-LacZ containing the -2 500-+ 54 promoter region in front of the LacZ gene. The expression of LacZ was detected using X-Gal staining in both human dental mesenchymal cells and immortalized human dental mesenchymal cells infected with phDSPP-LacZ. The phDSPP LacZ lentiviral vector may provide a more convenient method to detect the expression of DSPP in human odontogenic differentiation, tooth development and tooth regeneration studies. PMID- 29022315 TI - [Mutagenesis of Methylobacterium extorquens AM1 for increasing pyrroloquinoline quinone production by atmospheric and room temperature plasma]. AB - As a novel cofactor of oxidoreductase, pyrroloquinoline quinone (PQQ) has a great potential of application in medicine, food industries. In order to improve the efficiency of the PQQ production by Methylobacterium extorquens AM1, the strain was treated by atmospheric and room temperature plasma (ARTP). Positive mutants with changes in PQQ yield were obtained based on a high-throughput screening approach. After ARTP treatment, analysis data show that the positive mutation rate was 31.6%. Furthermore, we obtained an excellent positive mutant M. extorquens AM1 (E-F3) with the yield of 54.0 mg/L PQQ, which was approximately 3 times as much compared with that of the wild-type strain. The robust high throughput screening method for mutagenesis by ARTP improves PQQ production. In addition, this method also provides a new strategy for further strain improvement. PMID- 29022316 TI - [Advances in biosynthesis of 2-phenylethanol by yeasts]. AB - 2-Phenylethanol (2-PE) is an aromatic alcohol with a pleasant rose-like fragrance. It has been widely used in food, cosmetic, and pharmaceutical industry. Most of 2-PE is produced by chemical synthesis, but the use of chemically synthesized product is restricted in some fields. 2-PE from plant extraction is natural but its production is very low. Microbial biotransformation is a promising process to produce natural 2-PE. In this paper, we review recent research progress in the synthetic metabolic pathways and regulatory processes of 2-PE in yeast, and strategies for improving 2-PE production. Moreover, we discuss the limitation of current progress and future research directions. PMID- 29022318 TI - [Application of inteins in building protein affinity purification system]. AB - Intein is a part of polypeptide in the premature protein with the capability of self-splicing, which is widely applied in protein purification, protein conjuction, cyclopeptide preparation, protein labeling and biosensor. In this review, we summarized the development of intein used in protein purification, discussed intein-mediated chromatographic and non-chromatographic purification systems, and summarized the researches in manipulating intein cleavage reaction. This work is to provide clues for improvement of intein-mediated protein purification. PMID- 29022317 TI - [Application of next generation sequencing in studying food microorganisms-a review]. AB - Next generation sequencing technology has revolutionized studies in fermentation process, in particular, to explore the mechanism by which food microorganisms, including physiology, metabolic pathways, diversity and dynamic changes of microbial community. In addition, phylogenetic characteristics of different species or strains of the food microorganisms are disclosed. All these aspects will help explain how the microbes are interacting and responding to environmental factors. Bioinformatics analysis of genome and metagenome sequence data of food microorganisms could provide essential clues to improve fermentation process and function of microbes as well as control and prevention of foodborne disease outbreak. In this review, we summarized recent genomics and metagenomics studies on food microorganisms. The impact of next generation sequencing for the development and trends of food microorganism researches were discussed in details. PMID- 29022319 TI - [Progress of autophagy in regulating liver homeostasis]. AB - Liver is the largest human digestive gland and the most important metabolic organ. When autophagy was proposed during studying liver lysosomes in the 1960s, it was found that nutrient levels and hormones could influence autophagy activity. Recent studies show that autophagy is not only normal physiological processes, but also involved in the regulation of many pathological processes. This article summarizes the role of liver autophagy in the maintenance of homeostasis in the healthy liver, and provides new ideas for liver physiology and treating diseases associated with autophagy disorders. PMID- 29022320 TI - [Protein expression profile of mast cells in response to recombinant VP1-VP4 of foot-and-mouth disease virus]. AB - To reveal the innate immunity of mast cells against recombinant VP1-VP4 protein of foot-and-mouth disease virus (FMDV), mouse peritoneal mast cells (PMCs) were pulsed with recombinant VP1-VP4 protein. The supernatants harvested from PMCs cultures were applied to the high throughput ELISA array. Our results show that the expression levels of CCL19, L-selectin, CCL17, and TNF alpha released from PMCs pulsed with recombinant VP1-VP4 were significantly down-regulated compared with PMCs alone (P<0.001). Surprisingly, in comparison with PMCs alone, the expression levels of CCL19, IL-15, IL-9, G-CSF, and Galectin-1 in PMCs with the mannose receptor (MR) inhibitor were significantly up-regulated (Plt;0.01), and the expression level of IL-10 was also remarkably up-regulated (Plt;0.05). Importantly, the protein expression levels in PMCs treated with MR inhibitor were higher than PMCs pulsed with VP1-VP4, including IL-10, IL-17, CCL20, IL-15, IL-9, L-selectin, CCL17, TNF alpha, and CCL19 (Plt;0.01) as well as CCL21, and G-CSF (Plt;0.05). Differential expression analysis in bioinformatics shows that both L selectin and CCL17 were recognized as differentially expressed protein molecules (Log2(ratio)<=-1) when compared with PMCs alone. Furthermore, the up-regulation of the expression levels of CCL20, CCL19, L-selectin, and IL-15 in PMCs treated with MR inhibitor was defined as differential expression (Log2(ratio)>=1). These data indicate that PMCs are capable of secreting CCL19, L-selectin, CCL17, and TNF alpha spontaneously and the recombinant VP1-VP4 has an inhibitive potential to PMCs during their performance of innate immune response. Given the protein expression levels from PMCs pre-treated with MR inhibitor were significantly increased, it can be deduced that immunosuppression of FMDV is presumably initiated by the VP1 recognition of MR on mast cells. PMID- 29022321 TI - [PKB/Akt regulates the aggregation of actin by Girdin in mouse fertilized eggs]. AB - The purpose of this study is to reveal the role of Girdin in regulating the aggregation of actin filaments by studying the relationship between PKB/Akt and Girdin. First we used Scansite software (http://scansite.mit.edu) to predict relevant target sites of PKB/Akt on mouse Girdin. To gain insight into the role of phosphorylation of Girdin by PKB/Akt, we assessed the location of phosphorylated Girdin in fertilized eggs by staining with anti-P-Girdin 1 417 Ab. We detected a distinct increase in the fluorescence signal of F-actin and P Girdin 1 417 after microinjection of Akt WT and myr-Akt. The addition of myr-Akt induced phosphorylation of Girdin in mouse fertilized eggs. In addition, siRNA mediated Akt-knockdown blocked phosphorylation of Girdin. The distribution of actin filaments was obviously scattered. These results strongly suggest that PKB/Akt could directly phosphorylate Girdin on Ser1 417 and promote its function in mouse fertilized eggs. PMID- 29022322 TI - [Construction and optimization of microbial cell factories for producing cis, cis muconic acid]. AB - cis, cis-muconic acid (MA) is an important platform chemical. Now, majority of reported engineered strains are genetically instable, the exogenous genes are expressed under the control of expensive inducer and the components of their fermentation medium are complex, thus large-scale microbial production of MA is limited due to the lack of suitable strains. Hence, it is still necessary to construct novel high-performance strain that is genetically stable, no induction and grows in simple inorganic fermentation medium. In this study, after 3 exogenous genes (aroZ, aroY, catA) for biosynthesis of MA were integrated into previously constructed 3-hydroshikimate producing Escherichia coli WJ060 strain and combinatorially regulated with 3 constitutive promoters with different strengths, 27 engineered strains were constructed. The best engineered strain, E. coli MA30 could produce 1.7 g/L MA in the simple inorganic fermentation medium without induction. To further enhance the production capacity of MA, the mutant library of E. coli MA30 was constructed by genome replication engineering and screened via high-throughput assay. After two-round screening, the new strain, E. coli MA30-G2 with improved production of MA was obtained, and the titer of MA increased more than 8%. Under the condition of 5 L fed-batch fermentation, E. coli MA30-G2 could produce about 11.5 g/L MA. Combinatorial regulation and high throughput screening provide important reference to microbial production of other bio-based chemicals. PMID- 29022324 TI - [Stability enhancement of urethanase from Lysinibacillus fusiformis by site directed mutagenesis]. AB - Ethyl carbamate as a potential carcinogen commonly exists in traditional fermented foods and beverages. Enzymatic removal of ethyl carbamate from fermented foods and beverages is an efficient and safe method. In this study, we mutated urethanase from Lysinibacillus fusiformis SC02 on the Q328 site through computer aided design approaches. The half-life of resulting mutants Q328C and Q328V was detected to be 7.46 and 1.96 folds higher than that of the original enzyme, and Q328R presented better thermal-tolerance than the original urethanase when incubated at high temperature. The tolerance of Q328C to ethanol and acid also increased when compared with that of the original enzyme. The stability and tolerance to acid and ethanol of urethanase could be improved by modification on its Q328 site. PMID- 29022323 TI - [Fitness analysis between the L-sorbosone dehydrogenase modules and Ketogulonigenium vulgare chassis]. AB - Ketogulonigenium vulgare is an acid-producing strain in the process of two-step vitamin C fermentation. L-sorbosone dehydrogenase (SNDH) is one of the key enzymes during the biosynthesis of 2-keto-L-gulonic acid (2-KGA), the precursor of vitamin C. However, the catalytic mechanism of SNDH is unclear. According to the whole genome sequencing of K. vulgare, two genes encoding sorbosone dehydrogenases, one derived from the chromosome (named as sndhg) and one from plasmid (named as sndhp), were introduced into an industrial strain K. vulgare. The overexpression of gene sndhg had hardly effect on 2-KGA production, and the overexpression of gene sndhp produced an obvious byproduct in the fermentation broth. Combinational expression of sndhg/sndhp with pqqA (obtaining sndhg-pqqA and sndhp-pqqA modules) in K. vulgare resulted in the similar fermentation phenotype to two previous strains. After serial sub-cultivation of co-cultured Bacillus endophyticus with each engineered K. vulgare for 50 d, the conversion rate of 2-KGA increased by 15.4%, 179%, 0.65% and 125% compared with that of the parental K. vulgare with B. endophyticus. This study shows that adaptive evolution of microbial consortium is an effective strategy to increase the fitness between functional modules and chassis, thus quickly getting better strains for production of 2-KGA. PMID- 29022325 TI - [Thermal stability improvement for phenylalanine hydroxylase by site-directed mutagenesis]. AB - In proteins of thermophilic bacteria, Gly is tend to be replaced by Ala and Lys is tend to be replaced by Arg to adapt the high temperature. In order to improve the thermal stability of phenylalanine hydroxylase (PAH) from Chromobacterium violaceum, all the Gly on PAH were mutated to Ala and Lys to Arg. Positive mutant enzymes with improved thermal stability were selected, followed by combined mutation and characterization. The results revealed that half-lives of K94R and G221A mutants at 50 degrees C were 26.2 min and 16.8 min, which were increased by 1.9-times and 0.9-times than the parent enzyme (9.0 min). The residual activity of K94R/G221A mutant was improved to 65.6% after keeping at 50 degrees C for 1 h, which was 6.6 time higher than the parent enzyme (8.6%). Circular dichroism (CD) spectroscopy revealed that Tm values of the parent enzyme, K94R, G221A and K94R/G221A were 51.5 C, 53.8 C, 53.1 C and 54.8 C, respectively. According to the protein structure simulation, the two mutations were located on flexible loop. In the K94R mutant, the mutated Arg94 on the surface of the enzyme formed an extra hydrogen bond with Ile95, which stabilized the located loop. In the G221A mutant, the mutated Ala221 formed hydrophobic interaction with Leu281, which could stabilize both the loop and flexible area of the C-terminus of G221A. The results not only provided a reference for protein modification on thermal stability, but also laid the foundation for application of phenylalanine hydroxylase in the field of functional foods. PMID- 29022326 TI - [Integration and expression of Xa21 in transgenic rice CX8621]. AB - Agrobacterium tumefaciens-mediated transformation system has been widely applied. However, the function of target gene is affected by multiple factors. With this system, we obtained a transgenic rice line CX8621 carrying the bacterial blight resistance gene Xa21. In previous work, we have confirmed that it was selectable maker-free and vector backbone-free. And after 16 generations of breeding, it still maintained perfect resistance to bacterial blight disease. On this basis, we analyzed the integration and expression of Xa21 in CX8621 at the present study. First, based on the border sequences of plasmid pBXa21 and Xa21, we designed nested primers and assured the integrity of Xa21 in CX8621. Second, we cloned the flanking sequences and located Xa21 on chromosome 2 using improved Tail-PCR. Then we analyzed the expression pattern of Xa21 in several tissues and at different developmental stages by RT-PCR. The results show that Xa21 can be stably expressed in CX8621, agreeing well with the disease resistance response as reported previously. In addition, we detected the protein levels of XA21 in CX8621 with antibody of natural XA21 protein. Surprisingly, no XA21 protein was detected in the seeds of CX8621. Thus, the integration and expression analysis of Xa21 in CX8621 provided a part of scientific evidences for the safety assessment of genetically modified rice. PMID- 29022327 TI - [Comparison of MITE transposons mPing in different rice subspecies]. AB - The mPing family is the first active MITE TE family identified in rice genome. In order to compare the compositions and distributions of mPing family in the genomes of two rice subspecies japonica (cv. Nipponbare) and indica (cv. 93-11), we initially estimated the copy numbers of mPing family in those two subspecies using Southern blot and then confirmed the results by searching homologous copies in each reference genome using Blastn program, which turned out to have 52 and 14 mPing copies in corresponding reference genome, respectively. All mPing members in Nipponbare genome belong to mPing-1, while there are 3 mPing-1 and 11 mPing-2 copies in 93-11 genome. By further investigating the 5-kb flanking sequences of those mPing copies, it was found that 23 and 3 protein-coding genes in Nipponbare and 93-11 genome are residing adjacent to those mPing copies respectively. These results establish the preliminary theoretical foundation for further dissecting the genetic differences of japonica and indica rice in terms of the diversities and distributions of their component mPing. PMID- 29022328 TI - [Prokaryotic expression, purification and identification of recombinant human atrial natriuretic peptide]. AB - In order to improve the expression of recombinant human atrial natriuretic peptide (ANP), a new plasmid (pET28a(+)/ANP3) containing 3 tandem ANP genes with lysine codon as the interval linker, was constructed. Target gene was transformed into Escherichia coli BL21 (DE3) and induced by IPTG, about 60% of the total-cell protein was the target protein, His6-ANP3. After denaturation and refolding, it was digested by Endoproteinase Lys-C and Carboxypeptidase B (CPB) and then purified by a series of purification processes, about 16 mg purified ANP monomer could be obtained from one liter bacteria broth of shaking culture. Ultimately, the purity of protein was above 90% determined by UPLC and Tricine SDS-PAGE, its molecular weight was 3 080 Da according to LC-MS identification and it was proved to be equivalent to the reference product by ELISA. The use of tandem gene expression can provide a new possible model for the expression of other peptide drugs. PMID- 29022329 TI - [Effects of light quality on cell growth and psbA promoter of engineered Synechococcus sp. PCC7002]. AB - Light quality can regulate both psbA genes and vector promoter psbA of the engineered Synechococcus. Through light regulation, we tried to improve yield of the recombinant protein for vp28 gene-expressed Synechococcus sp. PCC7002. To drive photon-capturing efficiently, three limiting factors (irradiance, temperature and pH) were optimized by measuring net photosynthesis. High cell density cultures were performed with variant ratios of white, red and blue light in a 5-L photo-bioreactor. Yields of biomass, expressions of vp28 and transcription levels of psbA were compared. High ratio blue light-induced vp28 transcription had tripled and the relative accumulation of VP28 protein was doubled. The relative expressions of psbAII and psbAIII had positive correlations with higher ratio of blue light, not the red light. With high ratio red light inducing, dry biomass reached 1.5 g/L in three days. Therefore, we speculated that red light accelerated biomass accumulation of the transgenic strain and blue light promoted transcription for PpsbA and psbA. These results provided useful information for mass production of cyanobacteria and its secondary metabolites. PMID- 29022330 TI - Bladder stone management: an update. AB - INTRODUCTION: Bladder stone (BS) is a rare disease curable with several options. Herein, we reviewed the specific literature in order to update the current BS management. EVIDENCE ACQUISITION: A comprehensive systematic MEDLINE search was performed for English language reports published before April 2017 using the BS related terms, i.e. bladder-vesical calculi, lithotripsy. Then manuscripts references were screened to identify unfounded studies. Studies regarding BS in children were excluded. EVIDENCE SYNTHESIS: Retrieved studies were classified according to their main item as: etiology, diagnosis, treatment, treatment in specific illnesses and advances in BS management. Treatment option was mainly related to stone size and number as well as concomitant causative disease. However, stone nature was not analyzed in all the retrieved studies. Both trans urethral and percutaneous lithotripsy were efficacy for stone fragmentation although the last one was suggested to avoid urethral injuries. Holmiun:Yag laser lithotripsy has made stone fragmentation feasible by using local anesthesia however in selected patients only. The urological dogma to perform concomitant prostate surgery in men with BS has been recently questioned by some observational case-series studies however, the lack of randomization and long follow up preserve that knowledge. CONCLUSIONS: Bladder stone is a rare and ancient disease. Nowadays new technologies have been developed in the effort to make less invasive stone treatment. The retrieved studies show that stone fragmentation can be archived by using several surgical approaches and devices whereas comparative randomized studies are still unavailable to identify the best option. PMID- 29022331 TI - Trial of Tocilizumab in Giant-Cell Arteritis. PMID- 29022332 TI - Trial of Tocilizumab in Giant-Cell Arteritis. PMID- 29022333 TI - Health Effects of Overweight and Obesity in 195 Countries. PMID- 29022334 TI - Health Effects of Overweight and Obesity in 195 Countries. PMID- 29022335 TI - Paper/Carbon Nanotube-Based Wearable Pressure Sensor for Physiological Signal Acquisition and Soft Robotic Skin. AB - A wearable and flexible pressure sensor is essential to the realization of personalized medicine through continuously monitoring an individual's state of health and also the development of a highly intelligent robot. A flexible, wearable pressure sensor is fabricated based on novel single-wall carbon nanotube /tissue paper through a low-cost and scalable approach. The flexible, wearable sensor showed superior performance with concurrence of several merits, including high sensitivity for a broad pressure range and an ultralow energy consumption level of 10-6 W. Benefited from the excellent performance and the ultraconformal contact of the sensor with an uneven surface, vital human physiological signals (such as radial arterial pulse and muscle activity at various positions) can be monitored in real time and in situ. In addition, the pressure sensors could also be integrated onto robots as the artificial skin that could sense the force/pressure and also the distribution of force/pressure on the artificial skin. PMID- 29022336 TI - Methylsiloxanes Release from One Landfill through Yearly Cycle and Their Removal Mechanisms (Especially Hydroxylation) In Leachates. AB - In one yearly cycle (2016), D4 and D5 were detected in biogas samples (n = 36, 0.105-2.33 mg/m3) from a Chinese municipal landfill, while D4-D6 were detected in influents/effluents of leachate storage pond (n = 72, < LOQ-30.5 MUg/L). Mass loads of cVMS in both biogas (591-6575 mg/d) and leachate influents (659-5760 mg/d) increased from January to July (summer), and then decreased from July to December (winter). Removal experiments indicated that 1) hydrolysis and volatilization were predominant removal mechanism for D4 and D5, respectively, in leachate storage pond, responsible for their more significant removal (94.5-100%) in August; 2) indirect phototransformation (t1/2 = 25.5-87.0 days), such as hydroxylation by OH radical generated in leachates, was the predominant (50.0 75.5%) removal pathway for D6, which led to the largest removal efficiencies (65.2-73.7%) in June, the month with the largest sun light intensity and highest photosensitizer (e.g., Fe2+ and NO3-) concentrations. Monohydroxylated products of D5 and D6, D4TOH and D5TOH, were detected in leachate effluents (39.6-187 ng/L) during May-July. Compared to D5 and D6, volatilization half-lives of D4TOH (86.3 days) and D5TOH (177 days) in leachates were 2.9 and 1.4 times longer, while their hydrolysis half-lives (7.50 days for D4TOH and 21.5 days for D5TOH) were 7.1 and 10 times shorter, respectively. PMID- 29022337 TI - Asymmetric Syntheses of 3-Deoxy-3-aminosphingoid Bases: Approaches Based on Parallel Kinetic Resolution and Double Asymmetric Induction. AB - The asymmetric syntheses of a range of N- and O-protected 3-deoxy-3 aminosphingoid bases have been achieved using two complementary approaches. dl Serine was converted to a racemic N,N-dibenzyl-protected gamma-amino-alpha,beta unsaturated ester which was resolved using a parallel kinetic resolution (PKR) strategy upon reaction with a pseudoenantiomeric mixture of lithium (R)-N-benzyl N-(alpha-methylbenzyl)amide and lithium (S)-N-3,4-dimethoxybenzyl-N-(alpha methylbenzyl)amide, giving the corresponding enantio- and diastereoisomerically pure beta,gamma-diamino esters. Alternatively, elaboration of l-serine gave the corresponding enantiopure N,N-dibenzyl-protected gamma-amino-alpha,beta unsaturated ester, and doubly diastereoselective conjugate addition of the antipodes of lithium N-benzyl-N-(alpha-methylbenzyl)amide was found to proceed under the dominant stereocontrol of the lithium amide reagent in both cases, thus augmenting the accessible range of beta,gamma-diamino esters. Both of these protocols were expanded to include in situ oxidation of the enolate formed upon conjugate addition, giving access to the corresponding alpha-hydroxy-beta,gamma diamino esters. Elaboration of these beta,gamma-diamino and alpha-hydroxy beta,gamma-diamino esters gave the protected forms of the 3-deoxy-3 aminosphingoid base targets. PMID- 29022338 TI - Selective Double-Labeling of Cell-Free Synthesized Proteins for More Accurate smFRET Studies. AB - Forster resonance energy transfer (FRET) studies performed at the single molecule level have unique abilities to probe molecular structure, dynamics, and function of biological molecules. This technique requires specimens, like proteins, equipped with two different fluorescent probes attached at specific positions within the molecule of interest. Here, we present an approach of cell-free protein synthesis (CFPS) that provides proteins with two different functional groups for post-translational labeling at the specific amino acid positions. Besides the sulfhydryl group of a cysteine, we make use of an azido group of a p azido-l-phenylalanine to achieve chemical orthogonality. Herein, we achieve not only a site-specific but, most importantly, also a site-selective, label scheme that permits the highest accuracy of measured data. This is demonstrated in a case study, where we synthesize human calmodulin (CaM) by using a CFPS kit and prove the structural integrity and the full functionality of this protein. PMID- 29022339 TI - Resveratrol Ameliorates Tau Hyperphosphorylation at Ser396 Site and Oxidative Damage in Rat Hippocampal Slices Exposed to Vanadate: Implication of ERK1/2 and GSK-3beta Signaling Cascades. AB - The objective of this study was to investigate the effect of resveratrol (a natural polyphenolic phytostilbene) on tau hyperphosphorylation and oxidative damage induced by sodium orthovanadate (Na3VO4), the prevalent species of vanadium (vanadate), in rat hippocampal slices. Our results showed that resveratrol significantly inhibited Na3VO4-induced hyperphosphorylation of tau at the Ser396 (p-S396-tau) site, which is upregulated in the hippocampus of Alzheimer's disease (AD) brains and principally linked to AD-associated cognitive dysfunction. Subsequent mechanistic studies revealed that reduction of ERK1/2 activation was involved in the inhibitory effect of resveratrol by inhibiting the ERK1/2 pathway with SL327 mimicking the aforementioned effect of resveratrol. Moreover, resveratrol potently induced GSK-3beta Ser9 phosphorylation and reduced Na3VO4-induced p-S396-tau levels, which were markedly replicated by pharmacologic inhibition of GSK-3beta with LiCl. These results indicate that resveratrol could suppress Na3VO4-induced p-S396-tau levels via downregulating ERK1/2 and GSK-3beta signaling cascades in rat hippocampal slices. In addition, resveratrol diminished the increased extracellular reactive oxygen species generation and hippocampal toxicity upon long-term exposure to Na3VO4 or FeCl2. Our findings strongly support the notion that resveratrol may serve as a potential nutraceutical agent for AD. PMID- 29022340 TI - Molecular Dynamics of Oxazole Yellow Dye in its Ground and First Excited Electronic States in Solution and when Intercalated in dsDNA. AB - Oxazole yellow (YOPRO), a cyanine dye consisting of benzoxazole and quinoline rings connected by a linker, is almost nonfluorescent in water, but its fluorescence is greatly enhanced after intercalation in double-stranded DNA, forming the basis of DNA concentration assays. To explore this difference, new potential energy surfaces for the two linker dihedral angles in the ground S0 and first excited S1 electronic states are developed. Umbrella sampling molecular dynamics is used to obtain the free energy of rotation around the two dihedral angles of the linker. The two-dimensional free energy surface of the S1 state, spanning the Franck-Condon transition point from the S0 electronic state minimum (dihedral 1 around 180 degrees , dihedral 2 around 0 degrees ) to the S1 state minimum (~90, ~0), is obtained in water and when intercalated. In water, YOPRO's S1 free energy surface is completely downhill from the Franck-Condon point, whereas when intercalated, there is a barrier on the path. Thus, when intercalated in DNA, S1 YOPRO is more constrained than in water, supporting the hypothesis that intercalation does inhibit ring rotational motion around the linker and therefore strongly reduces the nonradiative relaxation, resulting in higher fluorescence intensity. PMID- 29022341 TI - Computationally Guided Catalyst Design in the Type I Dynamic Kinetic Asymmetric Pauson-Khand Reaction of Allenyl Acetates. AB - The Rh(I)-catalyzed allenic Pauson-Khand reaction (APKR) is an efficient, redox neutral method of synthesizing alpha-acyloxy cyclopentenones. An enantioselective APKR could provide access to chiral, nonracemic alpha-acyloxy and alpha-hydroxy cyclopentenones and their corresponding redox derivatives, such as thapsigargin, a cytotoxic natural product with potent antitumor activity. Rapid scrambling of axial chirality of allenyl acetates in the presence of Rh(I) catalysts enables the conversion of racemic allene to enantiopure cyclopentenone product in a dynamic kinetic asymmetric transformation (DyKAT). A combined experimental and computational approach was taken to develop an effective catalytic system to achieve the asymmetric transformation. The optimization of the denticity, and steric and electronic properties of the ancillary ligand (initially (S)-MonoPhos, 58:42 er), afforded a hemilabile bidentate (S)-MonoPhos-alkene-Rh(I) catalyst that provided alpha-acyloxy cyclopentenone product in up to 14:86 er. Enantioselectivity of the Rh(I)-(S)-MonoPhos-alkene catalyst was rationalized using ligand-substrate steric interactions and distortion energies in the computed transition states. This asymmetric APKR of allenyl acetates is a rare example of a Type I DyKAT reaction of an allene, the first example of DyKAT in a cyclocarbonylation reaction, and the first catalyst-controlled enantioselective APKR. PMID- 29022342 TI - Biodegradability of Plastics: Challenges and Misconceptions. AB - Plastics are one of the most widely used materials and, in most cases, they are designed to have long life times. Thus, plastics contain a complex blend of stabilizers that prevent them from degrading too quickly. Unfortunately, many of the most advantageous properties of plastics such as their chemical, physical and biological inertness and durability present challenges when plastic is released into the environment. Common plastics such as polyethylene (PE), polypropylene (PP), polystyrene (PS), and polyethylene terephthalate (PET) are extremely persistent in the environment, where they undergo very slow fragmentation (projected to take centuries) into small particles through photo-, physical, and biological degradation processes1. The fragmentation of the material into increasingly smaller pieces is an unavoidable stage of the degradation process. Ultimately, plastic materials degrade to micron-sized particles (microplastics), which are persistent in the environment and present a potential source of harm for organisms. PMID- 29022343 TI - Synthesis and Crystal Structure of Li+@Fluoreno[60]fullerene: Effect of Encapsulated Lithium Ion on Electrochemistry of Spiroannelated Fullerene. AB - The reaction of [Li+@C60]TFSI- (TFSI = bis(trifluoromethanesulfonyl)imide) with 9 diazofluorene directly produced a [6,6]-adduct of lithium-ion-containing fluoreno[60]fullerene, [6,6]-[Li+@C60(fluoreno)]TFSI-, which was crystallographically characterized. Cyclic voltammetry of the compound showed a reversible one-electron reduction wave at -0.51 V (vs Fc/Fc+) and an irreversible reduction wave for the second electron. The latter was attributed to opening of the three-membered ring due to strong stabilization of the resulting sp3 carbanion by the encapsulated Li+ and formation of a 14pi-electron aromatic fluorenyl anion. PMID- 29022344 TI - Development of Photoacoustic Probes for in Vivo Molecular Imaging. AB - Photoacoustic (PA) imaging is an emerging, non-invasive imaging modality that encompasses attributes of both optical and ultrasound imaging. Because of the combination of optical excitation and acoustic detection, PA imaging enables high contrast and high resolution within deep tissue (centimeter depths). Recent advances in PA probe development have allowed for stimulus-responsive imaging in a variety of biological models with implications for basic, translational, and clinical sciences. This perspective highlights recent progress in the development of PA probes and their application to live-animal molecular imaging. PMID- 29022345 TI - Single-Site Photocatalytic H2 Evolution from Covalent Organic Frameworks with Molecular Cobaloxime Co-Catalysts. AB - We demonstrate photocatalytic hydrogen evolution using COF photosensitizers with molecular proton reduction catalysts for the first time. With azine-linked N2-COF photosensitizer, chloro(pyridine)cobaloxime co-catalyst, and TEOA donor, H2 evolution rate of 782 MUmol h-1 g-1 and TON of 54.4 has been obtained in a water/acetonitrile mixture. PXRD, solid-state spectroscopy, EM analysis, and quantum-chemical calculations suggest an outer sphere electron transfer from the COF to the co-catalyst which subsequently follows a monometallic pathway of H2 generation from the CoIII-hydride and/or CoII-hydride species. PMID- 29022347 TI - Energy Efficiency and Performance Limiting Effects in Thermo-Osmotic Energy Conversion from Low-Grade Heat. AB - Low-grade heat energy from sources below 100 degrees C is available in massive quantities around the world, but cannot be converted to electricity effectively using existing technologies due to variability in the heat output and the small temperature difference between the source and environment. The recently developed thermo-osmotic energy conversion (TOEC) process has the potential to harvest energy from low-grade heat sources by using a temperature difference to create a pressurized liquid flux across a membrane, which can be converted to mechanical work via a turbine. In this study, we perform the first analysis of energy efficiency and the expected performance of the TOEC technology, focusing on systems utilizing hydrophobic porous vapor-gap membranes and water as a working fluid. We begin by developing a framework to analyze realistic mass and heat transport in the process, probing the impact of various membrane parameters and system operating conditions. Our analysis reveals that an optimized system can achieve heat-to-electricity energy conversion efficiencies up to 4.1% (34% of the Carnot efficiency) with hot and cold working temperatures of 60 and 20 degrees C, respectively, and an operating pressure of 5 MPa (50 bar). Lower energy efficiencies, however, will occur in systems operating with high power densities (>5 W/m2) and with finite-sized heat exchangers. We identify that the most important membrane properties for achieving high performance are an asymmetric pore structure, high pressure resistance, a high porosity, and a thickness of 30 to 100 MUm. We also quantify the benefits in performance from utilizing deaerated water streams, strong hydrodynamic mixing in the membrane module, and high heat exchanger efficiencies. Overall, our study demonstrates the promise of full-scale TOEC systems to extract energy from low-grade heat and identifies key factors for performance optimization moving forward. PMID- 29022346 TI - Solid-State Fluorescence of Fluorine-Modified Carbon Nanodots Aggregates Triggered by Poly(ethylene glycol). AB - Solid-state fluorescent carbon quantum dots (QDs) can be used for the encryption of security information. Controlling the dispersion and aggregation of the QDs is crucial for switching their solid-state fluorescence "on" and "off." The use of polymers has been proposed to slightly separate the QDs inside aggregates to trigger their fluorescence. However, the complex interactions between the QDs and flexible polymer chains make this process challenging. Here, fluorine-modified carbon nanodots (FCDs) were used in a solution as the printing ink. After printing, the FCDs were aggregated on paper via hydrogen bonds, thereby quenching the fluorescence. After a poly(ethylene glycol) (PEG) treatment, the FCDs exhibited yellow solid-state fluorescence due to an increased interdot spacing. The fluorescence intensity and emission wavelength could be tuned by varying the molecular weight and quantity of PEG used. Finally, we demonstrated a high resolution encryption and decryption system based on the PEG-triggered fluorescence of FCDs. PMID- 29022348 TI - Modified Mesoporous Silica Nanoparticles with a Dual Synergetic Antibacterial Effect. AB - Application of mesoporous silica nanoparticles (MSNs) as antifouling/antibacterial carriers is limited and specifically with a dual synergetic effect. In the present work, MSNs modified with quaternary ammonium salts (QASs) and loaded with the biocide Parmetol S15 were synthesized as functional fillers for antifouling/antibacterial coatings. From the family of the MSNs, MCM-48 was selected as a carrier because of its cubic pore structure, high surface area, and high specific pore volume. The QASs used for the surface modification of MCM-48 were dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride and dimethyltetradecyl[3-(triethoxysilyl)propyl]ammonium chloride. The QAS-modified MCM-48 reveals strong covalent bonds between the QAS and the surface of the nanoparticles. The surface functionalization was confirmed by Fourier transform infrared spectroscopy, thermogravimetric analysis, elemental analysis, and zeta-potential measurements. Additional loading of the QAS-modified MCM-48 with a commercially available biocide (Parmetol S15) resulted in a synergetic dual antibacterial/antifouling effect. Either loaded or unloaded QAS-modified MSNs exhibited high antibacterial performance confirming their dual activity. The QAS-modified MCM-48 loaded with the biocide Parmetol S15 killed all exposed bacteria after 3 h of incubation and presented 100% reduction at the antibacterial tests against Gram-negative and Gram-positive bacteria. Furthermore, the QAS-modified MCM-48 without Parmetol S15 presented 77-89% reduction against the exposed Gram-negative bacteria and 78-94% reduction against the exposed Gram-positive bacteria. In addition, the modified MCM-48 was mixed with coating formulations, and its antifouling performance was assessed in a field test trial in northern Red Sea. All synthesized paints presented significant antifouling properties after 5 months of exposure in real seawater conditions, and the dual antifouling effect of the nanoparticles was confirmed. PMID- 29022349 TI - Degradation of Carbonyl Hydroperoxides in the Atmosphere and in Combustion. AB - Oxygenates with carbonyl and hydroperoxy functional groups are important intermediates that are generated during the autoxidation of organic compounds in the atmosphere and during the autoignition of transport fuels. In the troposphere, the degradation of carbonyl hydroperoxides leads to low-vapor pressure polyfunctional species that may precipitate in clouds and fog droplets or to the formation of secondary organic aerosols (SOAs). In combustion, the fate of carbonyl hydroperoxides is important for the performance of advanced combustion engines, especially for autoignition. A key fate of the carbonyl hydroperoxides is reaction with OH radicals, for which kinetics data are experimentally unavailable. Here, we study 4-hydroperoxy-2-pentanone (CH3C(?O)CH2CH(OOH)CH3) as a model compound to clarify the kinetics of OH reactions with carbonyl hydroperoxides, in particular H atom abstraction and OH addition reactions. With a combination of electronic structure calculations, we determine previously missing thermochemical data, and with multipath variational transition state theory (MP-VTST), a multidimensional tunneling (MT) approximation, multiple-structure anharmonicity, and torsional potential anharmonicity, we obtained much more accurate rate constants than the ones that can computed by conventional single-structure harmonic transition state theory (TST) and than the empirically estimated rate constants that are currently used in atmospheric and combustion modeling. The roles of various factors in determining the rates are elucidated. The pressure-dependent rate constants for the addition reaction are computed using system-specific quantum RRK theory. The calculated temperature range is 298-2400 K, and the pressure range is 0.01-100 atm. The accurate thermodynamic and kinetics data determined in this work are indispensable in the global modeling of SOAs in atmospheric science and in the detailed understanding and prediction of ignition properties of hydrocarbons and alternative fuels. PMID- 29022350 TI - Sensitive and Accurate Quantitation of Phosphopeptides Using TMT Isobaric Labeling Technique. AB - Phosphorylation is an essential post-translational modification for regulating protein function and cellular signal transduction. Mass spectrometry (MS) combined with isobaric tandem mass tags (TMTs) has become a powerful platform for simultaneous, large-scale phospho-proteome site identification and quantitation. To improve the accuracy of isobaric tag-based quantitation in complex proteomic samples, MS3-based acquisition methods such as Synchronous Precursor Selection (SPS) have been used. However, the method suffers from lower peptide identification rates when applied to enriched phosphopeptide samples compared with unmodified samples due to differences in phosphopeptide fragmentation patterns during tandem MS. We developed and optimized two new acquisition methods for analysis of TMT-labeled multiplexed phosphoproteome samples, which resulted in more phosphopeptide identifications with less ratio distortion when compared with previous methods. We also applied these improved methods to a large-scale study of phosphorylation levels in A549 cell lines treated with insulin or insulin growth factor 1 (IGF-1). Overall, 3378 protein groups and 12 465 phosphopeptides were identified, of which 10 436 were quantified across 10 samples without prefractionation. The accurate measurement enabled us to map to numerous signaling pathways including mechanistic target of rapamycin (mTOR), epidermal growth factor receptor (EGFR, ErbB), and insulin signaling pathways. PMID- 29022353 TI - Chemical composition and in vitro antileishmanial and cytotoxic activities of the essential oils of Ocotea dispersa (Nees) Mez and Ocotea odorifera (Vell) Rohwer (Lauraceae). AB - We investigate the chemical composition and the in vitro antileishmanial and cytotoxic activities of the essential oils extracted from the leaves of Ocotea dispersa (Nees) Mez (OD-EO) and Ocotea odorifera (Vell) Rohwer (OO-EO). On the basis of GC-FID and GC-MS, alpha-eudesmol (20.9%), valencene (10.2%), delta elemene (9.3%) and isospathulenol (7.3%) are the major constituents of OD-EO, whereas safrole (36.3%), gamma-cadinene (6.6%), camphor (6.5%) and alpha-copaene (6.0%) are the main constituents of OO-EO. Both OD-EO and OO-EO display significant activity against the promastigote forms of Leishmania amazonensis, with IC50 values of 4.67 +/- 0.95 and 11.67 +/- 2.16 MUg/mL, respectively. The 50% cytotoxic concentration (CC50) of OD-EO and OO-EO to mouse peritoneal macrophages is 26.77 +/- 4.06 and 49.52 +/- 1.04 MUg/mL, respectively. This is the first report on the chemical composition of the essential oil extracted from the leaves of O. dispersa. Our results suggest that OD-EO and OO-EO are a promising source of new antileishmanial agents. PMID- 29022351 TI - The role of Vimentin in Regulating Cell Invasive Migration in Dense Cultures of Breast Carcinoma Cells. AB - Cell migration and mechanics are tightly regulated by the integrated activities of the various cytoskeletal networks. In cancer cells, cytoskeletal modulations have been implicated in the loss of tissue integrity and acquisition of an invasive phenotype. In epithelial cancers, for example, increased expression of the cytoskeletal filament protein vimentin correlates with metastatic potential. Nonetheless, the exact mechanism whereby vimentin affects cell motility remains poorly understood. In this study, we measured the effects of vimentin expression on the mechano-elastic and migratory properties of the highly invasive breast carcinoma cell line MDA231. We demonstrate here that vimentin stiffens cells and enhances cell migration in dense cultures, but exerts little or no effect on the migration of sparsely plated cells. These results suggest that cell-cell interactions play a key role in regulating cell migration, and coordinating cell movement in dense cultures. Our findings pave the way toward understanding the relationship between cell migration and mechanics in a biologically relevant context. PMID- 29022352 TI - Asymmetric Oxidative Coupling of Phenols and Hydroxycarbazoles. AB - The first examples of asymmetric oxidative coupling of simple phenols and 2 hydroxycarbazoles are outlined. Generation of a more vanadium catalyst by ligand design and by addition of an exogenous Bronsted or Lewis acid was found to be key to coupling the more oxidatively resistant phenols. The resultant vanadium complex is both more Lewis acidic and more strongly oxidizing. Good to excellent levels of enantioselectivity could be obtained, and simple trituration readily provided the products with >=95% ee. PMID- 29022354 TI - Three new isoflavones from the Pueraria montana var. lobata (Willd.) and their bioactivities. AB - Three new isoflavones, 7-acetyl-4',6-dimethoxy-isoflavone (1), 7-acetyl-4' hydroxy-6-methoxy-isoflavone (2) and 7-acetyl-6,8-dimethoxy-4'-hydroxy-isoflavone (3), together with five known flavones (4-8), were isolated from the Pueraria montana var. lobata (Willd.). Their structures were elucidated by spectroscopic methods, including extensive 1D- and 2D NMR techniques. Compounds 1-8 were evaluated for their anti-tobacco mosaic virus (anti-TMV) activities. The results showed that compounds 1 and 2 exhibited high anti-TMV activities with inhibition rates of 36.8 and 33.6%, respectively. The inhibition rates are higher than that of positive control. The other compounds also showed potential anti-TMV activities with inhibition rates in the range of 21.8~28.4%, respectively. The cytotoxicities of compounds 1-3 against five human tumour cell lines (NB4, A549, SHSY5Y, PC3 and MCF7) were also tested. The results revealed that compounds 1-3 showed weak inhibitory activities against some tested human tumour cell lines with IC50 values in the range of 1.2-3.6 MUM. PMID- 29022355 TI - Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopy as an Analytical Method to Investigate the Secondary Structure of a Model Protein Embedded in Solid Lipid Matrices. AB - Protein drugs may encounter conformational perturbations during the formulation processing of lipid-based solid dosage forms. In aqueous protein solutions, attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy can investigate these conformational changes following the subtraction of spectral interference of solvent with protein amide I bands. However, in solid dosage forms, the possible spectral contribution of lipid carriers to protein amide I band may be an obstacle to determine conformational alterations. The objective of this study was to develop an ATR FT-IR spectroscopic method for the analysis of protein secondary structure embedded in solid lipid matrices. Bovine serum albumin (BSA) was chosen as a model protein, while Precirol AT05 (glycerol palmitostearate, melting point 58 C) was employed as the model lipid matrix. Bovine serum albumin was incorporated into lipid using physical mixing, melting and mixing, or wet granulation mixing methods. Attenuated total reflection FT-IR spectroscopy and size exclusion chromatography (SEC) were performed for the analysis of BSA secondary structure and its dissolution in aqueous media, respectively. The results showed significant interference of Precirol ATO5 with BSA amide I band which was subtracted up to 90% w/w lipid content to analyze BSA secondary structure. In addition, ATR FT-IR spectroscopy also detected thermally denatured BSA solid alone and in the presence of lipid matrix indicating its suitability for the detection of denatured protein solids in lipid matrices. Despite being in the solid state, conformational changes occurred to BSA upon incorporation into solid lipid matrices. However, the extent of these conformational alterations was found to be dependent on the mixing method employed as indicated by area overlap calculations. For instance, the melting and mixing method imparted negligible effect on BSA secondary structure, whereas the wet granulation mixing method promoted more changes. Size exclusion chromatography analysis depicted the complete dissolution of BSA in the aqueous media employed in the wet granulation method. In conclusion, an ATR FT-IR spectroscopic method was successfully developed to investigate BSA secondary structure in solid lipid matrices following the subtraction of lipid spectral interference. The ATR FT-IR spectroscopy could further be applied to investigate the secondary structure perturbations of therapeutic proteins during their formulation development. PMID- 29022356 TI - Xylaropyrones B and C, new gamma-pyrones from the endophytic fungus Xylaria sp. SC1440. AB - Two new gamma-pyrones, xylaropyrones B (1) and C (2), together with three known compounds, xylaropyrone (3), annularin A (4) and annularin C (5), were isolated from solid cultures of the endophytic fungus Xylaria sp. SC1440. The structures of these compounds were determined mainly by analysis of their NMR spectroscopic data. The relative configurations of 1 and 2 were assigned on the basis of J based configurational analysis, and the absolute configurations were established by experimental and TDDFT calculated ECD spectra. The isolated compounds were evaluated for cytotoxic and tyrosinase inhibitory activity. PMID- 29022357 TI - Challenges in Screening for Pediatric Nonalcoholic Fatty Liver Disease. AB - Nonalcoholic fatty liver disease (NAFLD) is the most common cause of elevated liver enzymes in children in the United States. Screening for NAFLD in children with obesity is recommended by several published guidelines, but the application of these recommendations in pediatric weight management programs is uncertain. Our study aimed to describe the screening practices for NAFLD in a large pediatric weight management program. During 2014, 1312 patients were seen, with a liver enzyme panel obtained in 847 (64.5%). Only 47/847 (5.5%) had elevated liver enzymes twice the upper limit of normal. Of the 47, 33 (70%) patients had persistently elevated liver enzymes. Of those 33, 22 (67%) had further exclusionary laboratory testing. Screening for NAFLD is challenging even in a pediatric weight management program with clearly established protocols. Those with elevated liver enzymes do not always complete recommended exclusionary testing. Barriers to completing further evaluation need to be addressed. PMID- 29022358 TI - Development of the Injury Perceptions Questionnaire (InjPQ). AB - OBJECTIVES: Injuries are major causes of morbidity and mortality in the population. Given the central role of perceptions in self-regulation of health conditions, it is important to investigate how they are perceived. This article describes the development of the Injury Perceptions Questionnaire (InjPQ). METHODS: A concurrent study in a diverse sample of injured individuals (n = 333). The internal structure and the reliability (Cronbach's alpha) of InjPQ sub-scales were explored by factor analyses. Relationships between injury perception dimensions and equivalent illness perception scales and outcome measures (self assessed health; physical, emotional and social functioning; depression, anxiety and somatisation; satisfaction with life) were investigated. RESULTS: The InjPQ was found to represent the following perception scales: injury identity composed of social and body part components, PTSD symptoms, Injury event, Injury specific emotions, Injured self-image, Positive consequences, Responsibility/guilt, Coping, Time distance, Dependency, Healthy self, External attributions and Injury risk factors. The reliability and construct validity of the scales were found adequate. CONCLUSIONS: Injury perceptions can be reliably measured. While partly overlapping with equivalent illness perception scales, the InjPQ depicts cognitive dimensions unique to injury that add significantly to explaining variance in outcomes. The InjPQ is recommended for research and clinical use as a measure of injury perceptions. PMID- 29022359 TI - Health risks in rural populations due to heavy metals found in agricultural soils irrigated with wastewater in the Alto Balsas sub-basin in Tlaxcala and Puebla, Mexico. AB - The aim of this study was to determine the hazard ratio (HQ), the risk index (HI), and the cancer risk index (CRI) for populations of adults and children exposed to ingestion, dermal contact and inhalation of heavy metals in agricultural soil. For these, the contents of Cd, Pb, Ni, Cu, Co, Cr, Zn, and the metalloid As were determined in soils of four zones of the sub-basin of Alto Balsas, during two different periods of the year. The average content of metals in the soil was 1.24, 14.77, 14.80, 13.06, 5.50, 17.65, 22.89, and 5.32 mg kg-1 for Cd, Pb, Ni, Cu, Co, Cr, Zn, and As, respectively. The highest risk in terms of HQ and HI was for adults, especially for men who are affected through the skin, with Cd and Cr being the most dangerous. CRI values were within the allowable range, without posing problems for adult and child populations. PMID- 29022360 TI - New pyridocarbazole alkaloids from Strychnos nitida. AB - Phytochemical investigation of Strychnos nitida has led to the isolation of three new racemic pyridocarbazole alkaloids, (+/-)-stritidas A-C (1-3) and three known monoterpenoid indole alkaloids (4-6). Compounds 2 and 3 represent the first examples of pyridocarbazole alkaloids featuring an N-2-hydroxyethyl moiety. Their structures were determined by combined spectroscopic data (MS, UV, IR and NMR) and chemical methods. PMID- 29022361 TI - Interactions of quercetin with receptor tyrosine kinases associated with human lung carcinoma. AB - Lung cancer is a deadly form of cancer with high morbidity and mortality rates. Deregulated receptor tyrosine kinases (RTKs) are frequently associated with the formation and development of lung carcinoma. Quercetin is a major dietary flavonoid that has been shown to induce cell growth inhibition and apoptosis in human lung cancer cell lines. In the current study, four major overexpressed RTKs - EGFR, FGFR1, IGF1R and c-Met - involved in human lung cancer were investigated. Molecular docking was employed to identify the binding orientation and inhibitory potential of quercetin in these RTKs. Quercetin bound to the ATP binding pocket of these kinases exhibited good binding scores and interactions by establishing hydrogen, hydrophobic and pi-pi interactions with the hinge region and the DFG motif in the activation loop. Thus, quercetin could be further explored as a platform for developing specific or polypharmacological compounds targeting overexpressed RTKs in lung cancer. PMID- 29022362 TI - Narratives of health and illness: Arts-based research capturing the lived experience of dementia. AB - : Introduction This paper presents three artists' residencies in a geriatric medicine unit in a teaching hospital. The aim of the residencies was creation of new work of high artistic quality reflecting the lived experience of the person with dementia and greater understanding of service user experience of living with dementia. This paper also explores arts-based research methodologies in a medical setting. Method Arts-based research and narrative enquiry were the method used in this study. Artists had extensive access to service users with dementia, family carers and clinical team. Projects were created through collaboration between clinical staff, arts and health director, artist, patients and family carers. Each performance was accompanied by a public seminar discussing dementia. Evaluations were undertaken following each residency. The process of creating artistic responses to dementia is outlined, presented and discussed. Results The artworks were well received with repeat performances and exhibitions requested. Evaluations of each residency indicated increased understanding of dementia. The narratives within the artworks aided learning about dementia. The results are a new chamber music composition, a series of visual artworks created collaboratively between visual artist and patients and family carers and a dance film inspired by a dancer's residency, all created through narrative enquiry. DISCUSSION AND CONCLUSION: These projects support the role of arts-based research as creative process and qualitative research method which contributes to illuminating and exploring the lived experience of dementia. The arts act as a reflective tool for learning and understanding a complex health condition, as well as creating opportunities for increased understanding and public awareness of dementia. Issues arising in arts-based research in medical settings are highlighted, including ethical issues, the importance of service user narrative and multidisciplinary collaboration in arts and health practice and research. PMID- 29022363 TI - Development of pneumococcal vaccines over the last 10 years. AB - INTRODUCTION: Although significant improvements in the prevention of pneumococcal infections have been achieved in recent years, Streptococcus pneumoniae remains a leading cause of morbidity and mortality. To prevent S. pneumoniae infections, vaccines have been developed for several years. Areas covered: In this review, the most important emerging problems regarding pneumococcal conjugate vaccines (PCVs) are discussed in addition to the status of new vaccine design and development. Given the medical, social and economic relevance of pneumococcal diseases, the availability of effective and safe vaccines against S. pneumoniae is a key objective of public health. Expert opinion: Protein vaccines using agents different from capsular polysaccharides (CPs) or whole-cell vaccines seem to induce a broader immune response than PCVs and theoretically offer definitive solutions, as they can stimulate both humoral and cellular immunity. Moreover, these vaccines, particularly the whole-cell vaccine, are simpler to produce and significantly less expensive. However, the development of these preparations is very far from completion. It is highly likely that for a long time, no new safe and effective pneumococcal vaccines will be available. The best formulation of new pneumococcal vaccines has not been established. Consequently, an effort towards the expanded use of the available vaccines has to be made. PMID- 29022364 TI - Fast 'wandering' Takotsubo syndrome: atypical mixed evolution from apical to mid ventricular ballooning. AB - We report the case of a 53-year-old woman admitted for typical chest pain and a diagnosis of Takotsubo syndrome (TTS). Initial echocardiographic presentation was characterized by apical and mid-ventricular akinesis and basal hyper-kinesis. Unexpectedly, later after admission, echocardiography showed recovered apical akinesis with an apparent 'migration' of systolic dysfunction to mid-ventricular segment and hyper-kinesis of apical and basal segments. One week after admission, left ventricular contractility completely recovered and cardiac magnetic resonance imaging did not show signs of subendocardial late-enhancement and myocardial edema. Cases of TTS may therefore occasionally rapidly 'wander' within left ventricular segments, raising doubts over the so far used classification of left ventricular patterns of ballooning in subjects with TTS (typical/atypical). Apparently, different patterns can rapidly evolve into each other. The absence of late-enhancement at cardiac magnetic resonance imaging could hypothetically identify rapidly 'wandering' cases. PMID- 29022365 TI - Detection of new phenylpropanoids from Dendrobium chrysanthum. AB - Herba Dendrobii has been documented in the Compendium of Materia Medica, with special efficacy in nourishing Yin and treating diabetes. However, the chemical profile of Dendrobium chrysanthum Lindl. has not been reported yet. The compositions were analysed with UPLC/Q-TOF-MS/MS. 53 compounds were tentatively characterised, and 14 compounds might be new compounds. Some novel lactones of poly-phenylpropanoids were firstly detected, and di-p-hydroxyphenylpropionic acidic p-coumaric acid lactone, a new compound of the first example, was obtained and identified. UPLC/Q-TOF-MS/MS was a feasible and efficient method to discover the unique compounds in complex matrices of D. chrysanthum. PMID- 29022366 TI - Examining sociodemographic risk factors for Chlamydia trachomatis infection: a population-based cohort study. AB - AIM: Chlamydia trachomatis is the most prevalent bacterial sexually transmitted infection in developed nations and is an important public health concern. We aimed to assess the factors associated with testing and positivity of C. trachomatis in a large population. METHODS: A retrospective study of a large Canadian health region was undertaken using 2011 census and laboratory data. Demographic and socioeconomic data from the national household survey were linked to microbiologic data for C. trachomatis. Multivariable generalized estimating equation models were constructed to examine relative risk for C. trachomatis testing and positivity. RESULTS: For testing and positivity, female sex and younger age groups were associated with increased risk. University education and South Asian ethnicity were associated with lower risk of positivity. CONCLUSION: Incorporating socio-demographic factors will be critical to the success of future sexually transmitted infection public health programs. PMID- 29022367 TI - Maleic anhydride and chromone derivatives from the endophytic fungus BCC 54265 (Botryosphaeriaceae). AB - A maleic anhydride derivative, botryoanhydride (1), and a chromone derivative, botryochromone (2), together with three known chromones, eugenitin (3), 6 hydroxymethyleugenin (4) and 6-methoxymethyleugenin (5), were isolated from cultures of the endophytic fungus BCC 54265 of the family Botryosphaeriaceae. The structures were elucidated on the basis of NMR, HRMS and CD data. Compound 2 showed weak cytotoxic activity to cancer cell-lines. PMID- 29022368 TI - The Impact of Environmental Design on Teamwork and Communication in Healthcare Facilities: A Systematic Literature Review. AB - The purpose of this systematic review is to investigate the current knowledge about the impact of healthcare facility design on teamwork and communication by exploring the relevant literature. Teamwork and communication are behavioral factors that are impacted by physical design. However, the effects of environmental factors on teamwork and communication have not been investigated extensively in healthcare design literature. There are no published systematic reviews on the current topic. Searches were conducted in PubMed and Google Scholar databases in addition to targeted design journals including Health Environmental Research & Design, Environment and Behavior, Environmental Psychology, and Applied Ergonomics. Inclusion criteria were (a) full-text English language articles related to teamwork and communication and (b) involving any healthcare built environment and space design published in peer-reviewed journals between 1984 and 2017. Studies were extracted using defined inclusion and exclusion criteria. In the first phase, 26 of the 195 articles most relevant to teamwork and 19 studies of the 147 were identified and reviewed to understand the impact of communication in healthcare facilities. The literature regarding the impact of built environment on teamwork and communication were reviewed and explored in detail. Eighteen studies were selected and succinctly summarized as the final product of this review. Environmental design, which involves nurses, support staff, and physicians, is one of the critical factors that promotes the efficiency of teamwork and collaborative communication. Layout design, visibility, and accessibility levels are the most cited aspects of design which can affect the level of communication and teamwork in healthcare facilities. PMID- 29022369 TI - Psychosocially Supportive Design: The Case for Greater Attention to Social Space Within the Pediatric Hospital. AB - OBJECTIVE: Models of patient and family-centered care advocate catering to psychosocial needs when designing healthcare facilities yet there is little evidence available to determine how the built environment can cater to psychosocial needs. This article highlights the obstacles to overcoming this knowledge deficit in the pursuit of evidence-based guidelines to inform social provisions within the pediatric hospital setting. It will propose a working definition for psychosocial space and identify new research directions to enhance understandings of the relationship between social space and well-being. BACKGROUND: While traditional multibed ward configurations afforded opportunities for peer support relationships to develop, both for patients and caregivers, the contemporary preference for single-occupancy rooms intensifies the need to critically examine social spaces within the pediatric hospital. METHODS: Research suggests a correlation between social support and well-being. This article reviews the research underpinning contemporary understandings of this relationship; it positions literature from sociology, environmental psychology, and evidence-based design to highlight the limitations of this knowledge and identify where additional research is required to inform evidence-based design guidelines for psychosocially supportive spaces within pediatric healthcare settings. CONCLUSIONS: Evidence regarding the therapeutic value of social support within the pediatric hospital is not sufficiently sophisticated or conclusive to inform guidelines for the provision of social space with pediatric hospitals. There is an urgent need for targeted research to inform evidence-based design guidelines; this will demand a broad disciplinary approach. PMID- 29022370 TI - Toxicity and immunomodulatory efficacy of biosynthesized silver myconanosomes on pathogenic microbes and macrophage cells. AB - Silver myconanosomes prepared from Alternaria brassicae may exhibit potential antimicrobial and immunomodulatory activity due to their inimitable character. The prepared myconanosomes were characterized by using differential light scattering, zeta potential, UV-visible spectroscopy and transmission electron microscopic analyses. Mycologically produced AgNPs were found as spherical and irregular shaped measuring size range between 55.4 and 70.23 nm. The antimicrobicidal activity of these AgNPs against pathogenic microbes was evaluated by agar well diffusion method. Results showed that AgNPs inhibit the growth of various bacteria and fungi, which may be due to the disruption of cell membranes, leakage of cytoplasm and DNA degradation. Cytotoxicity analysis of AgNPs on cell lines revealed its dose dependent effect. Moreover, significant increase of intracellular reactive oxygen species was characterized in AgNPs treated cells after 4 h of incubation. Thus, AgNPs may have a significant advantage over conventional antibiotics as microorganisms are acquiring resistance against the broad range of available antibiotics. PMID- 29022371 TI - External validation of acute-to-chronic models for estimation of reproductive toxicity to Daphnia magna. AB - We evaluated the predictivity and applicability of previously proposed models for the reproductive toxicity of chemicals to Daphnia magna [SAR QSAR Environ. Res. 27:10, 833-850] by using external data from the United States Environmental Protection Agency database ECOTOX. These models were based on quantitative structure-activity-activity relationships (QSAARs) and a quantitative activity activity relationship (QAAR): the models can be categorized as acute-to-chronic models with (QSAAR) and without (QAAR) structural and physicochemical (e.g. distribution coefficients, log D) descriptors. We found that the QSAAR models were suitable for chemicals with an '-NH2 attached to aromatic carbon' sub structure, whereas the QAAR model was better for multicomponent compounds, coordination complexes, tin compounds and straight-chain primary amines. For chemicals with a known specific mode of action (e.g. pesticides and antibacterial agents and their derivatives), toxicity estimation within the acute-to-chronic framework requires special attention. We evaluated the applicability of the models on the basis of the descriptors in the models. We recommend that chemicals be pre-screened before their toxicities are estimated with these models: pre screening enabled the estimation of the toxicities of some chemicals within the applicability domains of the models. PMID- 29022372 TI - Machine learning-based models to predict modes of toxic action of phenols to Tetrahymena pyriformis. AB - The phenols are structurally heterogeneous pollutants and they present a variety of modes of toxic action (MOA), including polar narcotics, weak acid respiratory uncouplers, pro-electrophiles, and soft electrophiles. Because it is often difficult to determine correctly the mechanism of action of a compound, quantitative structure-activity relationship (QSAR) methods, which have proved their interest in toxicity prediction, can be used. In this work, several QSAR models for the prediction of MOA of 221 phenols to the ciliated protozoan Tetrahymena pyriformis, using Chemistry Development Kit descriptors, are reported. Four machine learning techniques (ML), k-nearest neighbours, support vector machine, classification trees, and artificial neural networks, have been used to develop several models with higher accuracies and predictive capabilities for distinguishing between four MOAs. They showed global accuracy values between 95.9% and 97.7% and area under Receiver Operator Curve values between 0.978 and 0.998; additionally, false alarm rate values were below 8.2% for training set. In order to validate our models, cross-validation (10-folds-out) and external test set were performed with good behaviour in all cases. These models, obtained with ML techniques, were compared with others previously reported by other researchers, and the improvement was significant. PMID- 29022373 TI - Psychological effects of exercise among adult women: The impact of menopausal status. AB - The psychological and physical benefits of regular physical activity are well established. but the majority of research to date has focussed on younger male samples. Two studies examined the impact of menopausal status on the ability of women to derive psychological benefits from exercise. Regular exercisers, assessed immediately following an exercise class. scored significantly lower on negative mood dimensions and higher on positive mood than did non-exercisers, regardless of menopausal status. Regular exercisers also showed significant improvements in mood state when assessed before and after a single exercise session; again this effect was independent of menopausal status. The results suggest that the acute mood-enhancing effects of exercise are maintained despite the endocrine changes associated with menopause. It is argued that encouraging menopausal women to adopt appropriate exercise patterns may assist in the alleviation of psychological distress as well as providing physical benefits. PMID- 29022374 TI - Social support and cardiovascular reactions to active laboratory stressors. AB - In order to examine the hypothesis that social support attenuates cardiovascular reactions to standard laboratory stressors. 60 male and 60 female undergraduates were first tested alone and then in one of three conditions: alone, or with a friend or a stranger present. Those tested with a partner, be it friend or stranger, displayed cardiovascular reactions of a similar magnitude to those who remained alone. Subsequent analysis following reallocation of subjects in the partnered conditions to groupings based on their ratings of how supportive or prying they found their partners did yield some effects. However, they occurred as interactive effects with sex, appeared on some cardiovascular indices but not others, and were modest in size, frequently failing to emerge as reliable on post hoc analysis. It was concluded that future tests of the social support-reactivity hypothesis need to be conducted in more realistic social settings. PMID- 29022375 TI - Quality of life in health care professionals: Burnout and its associated factors in hiv/aids related care. AB - Health care professionals working in HIV/AIDS are dedicated to providing quality care for their clients. They also need to care for themselves. This study examines why burnout occurs and how it may be prevented in the care of clients with HIV/AIDS. The sample of Australian HIV/AIDS health care professionals (n = 84). consisted of 54 nurses, 16 doctors and 14 social workers. Respondents were divided into groups on the basis of their burnout scores. Members of the High Burnout group had higher levels of Anxiety, Stress and Stigma, were more likely to use External Coping Strategies and higher amounts of Tangible Support than members of the Low Burnout group. Subjects in the Low Burnout group were more likely to use Internal Coping Strategies, had greater Affiliation with the Gay Community, experienced greater Support Belonging and Relationship Satisfaction and Social Recognition and Reward than their counterparts in the High Burnout group. Support and job-related rewards may buffer and prevent experiences of burnout. Programmes to prevent burnout should include the teaching of coping skills and relaxation skills and should foster staff support and recognition. PMID- 29022376 TI - Social perception of aids in french general public: 1987-1990 Evolution in paris region. PMID- 29022377 TI - Editorial board page for "Psychology and Health", volume 9, number 4. AB - This is a scanned image of the original Editorial Board page(s) for this issue. PMID- 29022378 TI - Exploring teenagers' adaptive and maladaptive thinking in relation to the threat of hiv infection. AB - Teenagers' HIV-preventive cognitions were explored within a protection motivation theory framework. Five hundred and seven adolescent men and women from two cohorts (sixteen and eighteen) completed a confidential postal questionnaire. The effect of demographic variables, previous sexual experience and appraisal of threat and coping resources upon HIV-relevant cognitions was investigated using path analysis. Cognitions promoting (adaptive) and inhibiting (maladaptive) preventive behaviour were considered. Anticipated condom use, intention to limit number of sexual partners and willingness to consider an HIV antibody test were included as adaptive HIV-preventive cognitions. Coping appraisal measures were strongly associated with anticipated condom use but threat appraisal measures were not. Gender, previous sexual experience, coping appraisal measures and denial accounted for 33% of the variance in anticipated condom use. Overall the results provided qualified support for Protection Motivation Theory. Implications for health education are highlighted. PMID- 29022379 TI - Effects of a post-hospitalization group health education programme for patients with coronary heart disease. AB - Effects of a post-hospitolization group health education programme for patients with coronary heart disease. A health education programme was offered to groups of coronary heart patients and their partners after discharge from hospital. A randomized pre-test post-test control group design was used to evaluate the effects of this experimental intervention. The health education programme was offered to 109 coronary heart patients in groups of between five and eight patients together with their partners in addition to standard medical care and physical training. A control group of 108 patients received only standard medical care and physical training. The intervention consisted of eight weekly two-hour group health education sessions and one follow-up session. All sessions focused on the promotion of healthy habits and the reduction of adverse psychosocial consequences of the incident. In the short term (about four months after the incident) the health education programme showed statistically significant intervention effects on knowledge about coronary heart diseases, smoking cessation, healthy eating habits and the number of consultations with the family physician, but no effects on emotional distress. In the long term (one year after the incident) there was only a significant intervention effect on smoking cessation. These results suggest that the effects of the programme are modest, especially in terms of maintenance of behavioural change. As a consequence, it is suggested that the programme should not be offered to all coronary patients during cardiac rehabilitation, but only to those who can be expected to profit most from it. PMID- 29022380 TI - Curcumin or bisdemethoxycurcumin for nose-to-brain treatment of Alzheimer disease? A bio/chemo-informatics case study. AB - The current study introduces a new idea of utilising several bio/chemoinformatics tools in comparing two bio-similar natural molecules viz. curcumin and bisdemethoxycurcumin (BDMC) in order to select a potential nose-to-brain remedy for Alzheimer disease. The comparison comprised several bio/chemo informatics tools. It encompassed all levels starting from loading the drug in a certain carrier; PLGA nanoparticles, to the biopharmaceutical level investigating the interaction with mucin and inhibition of P-gp blood-brain barrier efflux pumps. Finally, the therapeutic level was investigated by studying the interaction with pharmacological targets such as amyloid peptide plaques and cyclooxygenase2 enzyme responsible for the inflammatory reactions of the studied disease. The comparison revealed the superiority of curcumin over BDMC. Five new analogues were also hypothesised where diethoxybisdemethoxycurcumin was recommended as a superior molecule. This work introduced the virtual utilisation of bio/chemo informatics tools as a reliable and economic alternative to the exhausting and resources-consuming wet-lab experimentation. PMID- 29022381 TI - Effects of probiotic bacteria on mucosal polyamines levels in dogs with IBD and colonic polyps: a preliminary study. AB - Spermine (SPM) and its precursor putrescine (PUT), regulated by ornithine decarboxylase (ODC) and diamino-oxidase (DAO), are polyamines required for cell growth and proliferation. Only a few studies have investigated the anti inflammatory and tumour inhibitory properties of probiotics on mucosal polyamine levels. We investigated the effects of a high concentration multistrain probiotic for human use on colonic polyamine biosynthesis in dogs. Histological sections (inflammatory bowel disease, n=10; polyposis, n=5) were assessed after receiving 112 to 225*109 lyophilised bacteria daily for 60 days at baseline (T0) and 30 days after treatment end (T90). Histology scores, expression of PUT, SPM, ODC and DAO, and a clinical activity index (CIBDAI) were compared at T0 and T90. In polyps, cellular proliferation (Ki-67 expression), and apoptosis (caspase-3 protein expression) were also evaluated. After treatment, in inflammatory bowel disease significant decreases were observed for CIBDAI (P=0.006) and histology scores (P<0.001); PUT, SPM and ODC expression increased (P<0.01). In polyps, a significant decrease in polyamine levels, ODC activity, and Ki-67, and a significant increase in caspase-3 positivity and DAO expression (P=0.005) was noted. Our results suggest potential anti-proliferative and anti-inflammatory effects of the probiotic mixture in polyps and inflammation, associated with reduced mucosal infiltration and up-regulation of PUT, SPM, and ODC levels. PMID- 29022382 TI - Opposing effect of Lactobacillus on in vitro Klebsiella pneumoniae in biofilm and in an in vivo intestinal colonisation model. AB - Beneficial bacteria represent potential sources of therapy, particularly in the battle against antibiotic-resistant pathogens. The Gram-negative bacillus Klebsiella pneumoniae is not only a paradigm of multi-resistant opportunistic pathogen, but it is also able to colonise the human intestine and displays a high capacity to form biofilm. In this study, the anti-biofilm activity of 140 neutralised Lactobacillus supernatants was assessed against K. pneumoniae. Among the 13 strains whose supernatant significantly impaired biofilm formation, Lactobacillus plantarum CIRM653 was selected because it was also able to impair K. pneumoniae preformed biofilm, independently of a bactericidal effect. Mixed K. pneumoniae/L. plantarum CIRM653 biofilms had reduced tridimensional structures associated with a significant decrease in K. pneumoniae biomass. Further investigation showed that L. plantarum CIRM653 supernatant induced transcriptional modifications of K. pneumoniae biofilm-related genes, including down-regulation of the quorum sensing-related lsr operons and over-expression of type 3 pili structure genes. Increased production of type 3 pili was validated by Western-blot, hemagglutination and adhesion assays. L. plantarum CIRM653 activity against K. pneumoniae was also assessed in a murine intestinal colonisation model: a constant faecal pathogen burden was observed, as against a gradual decrease in the control group. These results reveal that an in vitro a priori attracting anti-biofilm activity of Lactobacillus might be counterbalanced by an in vivo behaviour in a complex microbiota environment with potential deleterious dispersal of highly adherent K. pneumoniae cells, raising the question of the accuracy of in vitro assays in screening of beneficial microbes. PMID- 29022383 TI - Ratio of Klebsiella/Bifidobacterium in early life correlates with later development of paediatric allergy. AB - Several studies have reported that intestinal microbial colonisation patterns differ between non-allergic and allergic infants. However, the microbial signature underlying the pathogenesis of allergies remains unclear. We aim to gain insight into the development of the intestinal microbiota of healthy infants and infants who develop allergy in early life, and identify potential microbiota biomarkers of later allergic disease. Using a case-control design in a Chinese sub-cohort of a Singaporean birth cohort (GUSTO), we utilised 16S rRNA gene sequencing to assess intestinal microbial composition and diversity of 21 allergic and 18 healthy infants at 3 weeks, 3 months and 6 months of age, and correlated the microbiota with allergy at ages 18 and 36 months. Pronounced differences in intestinal microbiota composition between allergic and healthy infants were observed at 3 months of age. The intestine of healthy infants was colonised with higher abundance of commensal Bifidobacterium. Conversely, Klebsiella, an opportunistic pathogen, was significantly enriched in the allergic infants. Interestingly, infants with a high Klebsiella/Bifidobacterium (K/B) ratio (above the population median K/B ratio) at age 3 months had an odds ratio of developing allergy by 3 years of age of 9.00 (95% confidence interval 1.46 55.50) compared to those with low K/B ratio. This study demonstrated a relationship between the ratio of genera Klebsiella and Bifidobacterium during early infancy and development of paediatric allergy in childhood. Our study postulates that an elevated K/B ratio in early infancy could be a potential indicator of an increased risk of allergy development. This line of research might enable future intervention strategies in early life to prevent or treat allergy. Our study provides new insights into microbial signatures associated with childhood allergy, in particular, suggests that an elevated K/B ratio could be a potential early-life microbiota biomarker of allergic disease. PMID- 29022384 TI - Does the maternal vaginal microbiota play a role in seeding the microbiota of neonatal gut and nose? AB - The acquisition and early maturation of infant microbiota is not well understood despite its likely influence on later health. We investigated the contribution of the maternal microbiota to the microbiota of infant gut and nose in the context of mode of delivery and feeding. Using 16S rRNA sequencing and specific qPCR, we profiled microbiota of 42 mother-infant pairs from the GUSTO birth cohort, at body sites including maternal vagina, rectum and skin; and infant stool and nose. In our study, overlap between maternal vaginal microbiota and infant faecal microbiota was minimal, while the similarity between maternal rectal microbiota and infant microbiota was more pronounced. However, an infant's nasal and gut microbiota were no more similar to that of its own mother, than to that of unrelated mothers. These findings were independent of delivery mode. We conclude that the transfer of maternal vaginal microbes play a minor role in seeding infant stool microbiota. Transfer of maternal rectal microbiota could play a larger role in seeding infant stool microbiota, but approaches other than the generally used analyses of community similarity measures are likely to be needed to quantify bacterial transmission. We confirmed the clear difference between microbiota of infants born by Caesarean section compared to vaginally delivered infants and the impact of feeding mode on infant gut microbiota. Only vaginally delivered, fully breastfed infants had gut microbiota dominated by Bifidobacteria. Our data suggest that reduced transfer of maternal vaginal microbial is not the main mechanism underlying the differential infant microbiota composition associated with Caesarean delivery. The sources of a large proportion of infant microbiota could not be identified in maternal microbiota, and the sources of seeding of infant gut and nasal microbiota remain to be elucidated. PMID- 29022385 TI - Effect of antibiotic, probiotic, and human rotavirus infection on colonisation dynamics of defined commensal microbiota in a gnotobiotic pig model. AB - We developed a gnotobiotic (Gn) pig model colonised with defined commensal microbiota (DMF) to provide a simplified and controlled system to study the interactions between intestinal commensals, antibiotics (ciprofloxacin, CIP), probiotics (Escherichia coli Nissle 1917, EcN) and virulent human rotavirus (VirHRV). The DMF included seven gut commensal species of porcine origin that mimic the predominant species in the infant gut. Gn piglets were divided into four groups: DMF control (non-treated), DMF+CIP (CIP treated), DMF+CIP+EcN (CIP/EcN treated), DMF+EcN (EcN treated) and inoculated orally with 105 cfu of each DMF strain. The pig gut was successfully colonised by all DMF species and established a simplified bacterial community by post-bacteria colonisation day (PBCD) 14/post-VirHRV challenge day (PCD) 0. Overall, Bifidobacterium adolescentis was commonly observed in faeces in all groups and time points. At PCD0, after six days of CIP treatment (DMF+CIP), we observed significantly decreased aerobic and anaerobic bacteria counts especially in jejunum (P<0.001), where no DMF species were detected in jejunum by T-RFLP. Following HRV challenge, 100% of pigs in DMF+CIP group developed diarrhoea with higher diarrhoea scores and duration as compared to all other groups. However, only 33% of pigs treated with EcN plus CIP developed diarrhoea. EcN treatment also enhanced the bacterial diversity and all seven DMF species were detected with a higher proportion of Bifidobacterium longum in jejunum in the DMF+CIP+EcN group on PBCD14/PCD0. Our results suggest that EcN increased the proportion of B. longum especially in jejunum and mitigated adverse impacts of antibiotic use during acute-infectious diarrhoea. The DMF model with a simplified gut commensal community can further our knowledge of how commensals and probiotics promote intestinal homeostasis and contribute to host health. PMID- 29022386 TI - Bacillus toyonensis improves immune response in the mice vaccinated with recombinant antigen of bovine herpesvirus type 5. AB - Probiotics modulate the immune response and can increase the effectiveness of vaccines. Bacillus toyonensis is widely used as a probiotic in animal feed. The aim of this study was to assess the effects of B. toyonensis administration on the immune response to an experimental recombinant vaccine against bovine herpesvirus type 5 (BoHV-5) in mice. Mice were vaccinated with BoHV-5 recombinant glycoprotein D and supplemented with the probiotic B. toyonensis in two regimes: one group received the probiotic only during seven days prior to the initial vaccination while the second group was given the probiotic throughout the experimental period of seven weeks. Animals supplemented with probiotic B. toyonensis in two regimes showed an increase in total immunoglobulin (Ig)G, IgG1 and IgG2a levels in serum, in addition to higher titres of antibodies capable of neutralising the BoHV-5 virus than non-supplemented animals (P<0.05). Splenocytes from the supplemented mice had higher mRNA transcription levels of cytokines interleukin (IL)-4 and IL-12. These results show that the use of this probiotic may significantly contribute to the response elicited by recombinant vaccines, especially those that rely on increasing antibody and cell-mediated immune responses for efficacy. Further, the data support an immunomodulatory effect for probiotic B. toyonensis and imply that enhance effect on the immune response against a BoHV-5 recombinant vaccine in mice. PMID- 29022387 TI - Lactobacillus plantarum IS-10506 supplementation reduced SCORAD in children with atopic dermatitis. AB - Lactobacillus plantarum IS-10506 is a novel probiotic isolated from dadih, an Indonesian traditional fermented buffalo milk. It's in vitro and in vivo probiotic properties have been assessed. Probiotic function has been shown in vivo by the suppression of allergic reactions in BALB/c mice through the action of T-regulatory cells cytokines by balancing Th1 and Th2 immune response. Atopic dermatitis (AD) is a chronic recurrent inflammatory skin disease characterised by the imbalance of Th1 and Th2. The aim of the study was to assess the probiotic function of L. plantarum IS-10506 in children with mild and moderate AD. A randomised double-blind placebo-controlled trial comparing microencapsulated L. plantarum IS-10506 (1010 cfu/day) and placebo (skim milk-Avicel) twice daily for 12 weeks was conducted in an outpatient clinic on children with mild and moderate AD. The trial included 22 AD children divided into intervention and control groups of n=12 and n=10 patients, respectively. Scoring Atopic Dermatitis Index (SCORAD) and serum immunoglobulin E (IgE), interleukin (IL)-4, interferon gamma (IFN-gamma), forkhead box P3 (Foxp3+)/IL-10, and IL-17 levels were assessed. Demographic and baseline characteristics were not significantly different between the two groups. SCORAD and levels of IL-4, IFN-gamma, and IL-17 were significantly lower in the probiotic group than those in the placebo group, while the IgE levels were not significantly changed. The ratio of Foxp3+ to IL-10 was significantly higher in the probiotic group than that in placebo group. Supplementation with the probiotic L. plantarum IS-10506 offered a potential treatment for children with AD. Further long-term studies with a larger sample size are required to confirm the therapeutic efficacy of L. plantarum IS-10506 in AD. PMID- 29022388 TI - Our gut microbiota: a long walk to homeostasis. AB - The microbiome of the human gastrointestinal tract (GIT) consists of billions of bacteria, fungi and viruses, of which bacteria play the most important role in nutrition, immune development, production of vitamins and maintaining a well balanced (homeostatic) microbial population. Many papers have been published on the microbiota in the human GIT, but little is known about the first group of bacteria that colonises an infant. The intestinal tract of an unborn is, despite general belief, not sterile, but contains bacteria that have been transferred from the mother. This opens a new research field and may change our understanding about the role bacteria play in early life, the selection of strains with probiotic properties and the treatment of diseases related to bacterial infections. Differences in bacterial populations isolated from meconia may provide answers to the prevention of certain forms of diabetes. More research is now focusing on the effect that a genetically diverse group, versus a much simpler microbial population, may have on the development of a homeostatic gut microbiome. The effect different bacterial species have on the gut-associated lymphoid tissue and cascade of immune responses has been well researched, but we still fail in identifying the ideal group of intestinal bacteria and if we do, it will certainly not be possible to maintain homeostasis with so many challenges the gut faces. Changes in diet, antibiotics, food preservatives and stress are some of the factors we would like to control, but more than often fail to do so. The physiology and genetics of the GIT changes with age and so the microbiome. This review summarises factors involved in the regulation of a gut microbiome. PMID- 29022389 TI - The composition and metabolism of faecal microbiota is specifically modulated by different dietary polysaccharides and mucin: an isothermal microcalorimetry study. AB - The metabolic activity of colon microbiota is specifically affected by fibres with various monomer compositions, degree of polymerisation and branching. The supply of a variety of dietary fibres assures the diversity of gut microbial communities considered important for the well-being of the host. The aim of this study was to compare the impact of different oligo- and polysaccharides (galacto- and fructooligosaccharides, resistant starch, levan, inulin, arabinogalactan, xylan, pectin and chitin), and a glycoprotein mucin on the growth and metabolism of faecal microbiota in vitro by using isothermal microcalorimetry (IMC). Faecal samples from healthy donors were incubated in a phosphate-buffered defined medium with or without supplementation of a single substrate. The generation of heat was followed on-line, microbiota composition (V3-V4 region of the 16S rRNA using Illumina MiSeq v2) and concentrations of metabolites (HPLC) were determined at the end of growth. The multiauxic power-time curves obtained were substrate specific. More than 70% of all substrates except chitin were fermented by faecal microbiota with total heat generation of up to 8 J/ml. The final metabolite patterns were in accordance with the microbiota changes. For arabinogalactan, xylan and levan, the fibre-affected distribution of bacterial taxa showed clear similarities (e.g. increase of Bacteroides ovatus and decrease of Bifidobacterium adolescentis). The formation of propionic acid, an important colon metabolite, was enhanced by arabinogalactan, xylan and mucin but not by galacto- and fructooligosaccharides or inulin. Mucin fermentation resulted in acetate, propionate and butyrate production in ratios previously observed for faecal samples, indicating that mucins may serve as major substrates for colon microbial population. IMC combined with analytical methods was shown to be an effective method for screening the impact of specific dietary fibres on functional changes in faecal microbiota. PMID- 29022390 TI - Randomised double blind placebo controlled trial on Lactobacillus reuteri DSM 17938: improvement in symptoms and bowel habit in functional constipation. AB - Dysbiosis may contribute to constipation and its symptoms, therefore probiotic administration could improve significantly gut health and functions. The aim of the study was to investigate the effects of a long-lasting administration of Lactobacillus reuteri DSM 17938 (LR DSM 17938) on symptoms and quality of life (QoL) score in patients with functional constipation (FC). 56 FC patients with normal colonic transit time and without anorectal disorders and pelvic floor dysfunctions completed the study. LR DSM 17938 was administered for 105 days in a randomised double-blind clinical trial (28 patients per arm). Individual and cumulative scores including the Constipaq, a modified Constipation Scoring System (CSS) that considers the patient assessment of constipation-QoL (PAC-QoL), were calculated during the preliminary visit (V0), at day 15 (end of the induction period with a LR DSM 17938 double dosage, 4*108 cfu), day 60 (intermediate evaluation) and day 105 (V4) after a standard dosage (2*108 cfu). At the end of treatment, the beneficial effect of LR DSM 17938 compared to placebo was significantly evident for symptoms related to gas content and dysbiosis (abdominal discomfort, pain and bloating), incomplete defecation and helps for defecation (P<0.05). At the end of the whole LR DSM 17938 treatment, a marked and positive effect on both the CSS single and the cumulative items was evident with the exception of unfruitful attempt and Bristol score. Present findings indicate that LR DSM 17938 has an effect on symptoms different from stool consistency, and they suggest that this probiotic can effectively be used in association therapy rather than as single-drug therapy in the management of FC. PMID- 29022392 TI - Lay beliefs about the efficacy of self-reliance, seeking help and external control as strategies for overcoming obesity, drug addiction, marital problems, stuttering and insomnia. AB - This study was concerned with peoples' beliefs about the importance of twenty four different contributors towards overcoming five relatively common personal health problems, namely: obesity, drug addiction, marital difficulties, stuttering and insomnia. One hundred and twenty-two subjects completed a five page questionnaire indicating how effective each of these contributors were to overcoming the problems as specified. Factor analysis revealed an interpretable structure similar to previous studies (Luk and Bond, 1992): the emerging three factors were labelled 'self-reliance", "seeking help" and "external control". Multiple regression showed that few individual difference variables as measured were related to perceived relevance of the different contributors. The results were discussed in terms of subjects' beliefs concerning the value of self reliance as opposed to seeking help, and in relation to the importance of understanding lay beliefs about the efficacy of different forms of intervention. PMID- 29022391 TI - KR-12-a5 is a non-cytotoxic agent with potent antimicrobial effects against oral pathogens. AB - This study evaluated the cytotoxicity and antimicrobial activity of analogs of cationic peptides against microorganisms associated with endodontic infections. L 929 fibroblasts were exposed to LL-37, KR-12-a5 and hBD-3-1CV and chlorhexidine (CHX, control), and cell metabolism was evaluated with MTT. The minimal inhibitory concentration (MIC) and the minimal bactericidal/fungicidal concentration (MBC/MFC) of the peptides and CHX were determined against oral pathogens associated with endodontic infections. Enterococcus faecalis and Streptococcus mutans biofilms were cultivated in bovine dentin blocks, exposed to different concentrations of the most efficient antimicrobial peptide and analyzed by confocal laser scanning microscopy. CHX and peptides affected the metabolism of L-929 at concentrations > 31.25 and 500 MUg ml-1, respectively. Among the peptides, KR-12-a5 inhibited growth of both the microorganisms tested with the lowest MIC/MBC/MFC values. In addition, KR-12-a5 significantly reduced E. faecalis and S. mutans biofilms inside dentin tubules. In conclusion, KR-12-a5 is a non-cytotoxic agent with potent antimicrobial and anti-biofilm activity against oral pathogens associated with endodontic infections. PMID- 29022394 TI - Effects of different psychological interventions on neck, shoulder and low back pain in female hospital staff. AB - One hundred and eleven females volunteered to take part in this intervention study of musculoskeletal pain. They all completed a survey of pain among five hundred and eighty-six female hospital staff and presented mild to severe pain in the neck, shoulder and/or low back. They were randomly assigned to one of the following groups; Focus on job-stress and psychosocial coping (Cognitive), relaxation training (Relaxation), the combination of the two (Combined) or to a control group (Control). Musculoskeletal pain (intensity and duration) was assessed by self-report prior to interventions, immediately after interventions, and at a four months follow-up. Results from multivariate analyses of variance as well as covariance (pre-intervention levels of pain as covariate) showed that magnitude of pain reduction was dependent upon the interaction between area of the back and type of intervention. These trends were more significant for intensity than for duration scores. They were due to reductions of pain in (1) neck and shoulders for the Cognitive and Combined groups and (2) in the low back and shoulders for the Relaxation group. The four month follow-up assessment revealed a significant risk of relapse only for duration of low back pain among subjects in the Combined group. Results from the Cognitive approach to intervention may reflect a causal role for ability to cope with psychosocial job stress in the development of neck and shoulder pain in female hospital staff. PMID- 29022395 TI - Superhealth basic: Development and evaluation of a low-cost community-based lifestyle change programme. AB - This research describes the development and evaluation of a community-based lifestyle change health promotion programme in New Zealand. The six-week small group programme, called Superhealth Basic, comes as a low-cost resource kit capable of widespread distribution in the community. It is based on a combination of health and community psychology principles and methods, and is designed to be run by untrained lay leaders. A quasi-experimental trial involving 141 participants in 19 groups produced results showing significant positive changes in behaviour, health and wellbeing, with a high level of participant satisfaction and low dropout rates. At 12-month follow-up, the benefits of the programme were found to have been maintained with continuing expression of satisfaction with the programme. As a result of this research, Superhealth Basic is now available as a community resource throughout New Zealand. PMID- 29022396 TI - Gender differences in the psychological correlates of body-weight in young adults. AB - This study investigated gender differences in the correlates of actual and perceived body weight in a sample of young adults, as opposed to the college students usually sampled. Although women were significantly less overweight than men on an objective index of weight (the Body Mass Index). they perceived themselves to be significantly more overweight. The extent to which women perceived themselves as overweight was correlated negatively with self-esteem, and positively with negative affect including depressed mood, and minor psychiatric symptomology. In contrast, there was no relationship between body weight perception and psychological well-being for the men. It was concluded that a woman's body weight is much more central to her self-image than is a man's. PMID- 29022397 TI - Effective recruitment of parents into family-focused prevention research: A comparison of two strategies. AB - Recent literature highlights the need for more effective recruitment and retention strategies in prevention research. This article reports an investigation of the effectiveness of two recruitment strategies for a family focused substance abuse prevention study. The first strategy offered prospective participants two points at which they could make a decision about their level of involvement in the research project and required only a limited initial time commitment. The second strategy required an initial commitment to participate in all phases of the project. The investigation was conducted with 208 rural families participating in the pilot phase of a five-year prevention study. There were three primary findings. First, both strategies were effective, yielding higher recruitment rates than would be predicted from relevant literature. Second, the strategy requiring a limited time commitment showed significantly higher rates of recruitment into the pretest, but was associated with significantly lower posttest retention rates. Third, data trends emerged but there were no statistically significant differences between the two recruitment strategy groups across a range of intervention participation indicators. PMID- 29022398 TI - Editorial board page for "Psychology and Health", volume 9, number 5. AB - This is a scanned image of the original Editorial Board page(s) for this issue. PMID- 29022399 TI - Personality and attitudinal correlates of healthy and unhealthy lifestyles in young adults. AB - The relationship between healthy lifestyle and personality and attitudinal variables was analyzed with data collected from 809 men and 996 women aged 18-30 years in England, Belgium, Finland and Norway as part of the European Health and Behaviour Survey. A health practices index was constructed on the basis of performance of sixteen behaviours including smoking, alcohol consumption, exercise, sleep time and a variety of dietary and preventive practices. Scores on the health practices index were higher in women than men, but in both sexes the index was normally distributed. Consistently healthy practices were positively correlated with extraversion and optimism, and negatively associated with neuroticism, psychoticism and chance locus of control beliefs. These effects were maintained after controlling for social desirability, but together accounted for only a modest proportion of the variance in the health practices index. The results are discussed in relation to the factors characterising health conscious and unhealthy lifestyles. PMID- 29022400 TI - Formulation optimization and the absorption mechanisms of nanoemulsion in improving baicalin oral exposure. AB - OBJECTIVE: The aim of this study was to optimize baicalin nanoemulsion, clarify the absorption mechanisms of nanoemulsion improving the exposure of baicalin, and assess the potential of employing nanoemulsion as nanosystem for insoluble drugs. SIGNIFICANCE: A novel nanoemulsion formulation was successfully prepared to enhance oral exposure of baicalin. METHODS: Pseudo-ternary phase diagrams were utilized to evaluate nanoemulsion area. Physicochemical properties of optimal nanoemulsion formulation were investigated. The exposure of baicalin from the nanoemulsion was compared with baicalin suspension. The in situ single-pass intestine perfusion (SPIP) method and chylomicron-blocked rat model were used to study the absorption mechanisms of nanoemulsion. RESULTS: Baicalin nanoemulsion was nearly spherical in shape with the average droplet size of 58.43 nm, and the zeta potential was -8.18 +/- 1.2 mV. The stability test showed that baicalin nanoemulsion was very stable. Pharmacokinetic study indicated that baicalin nanoemulsion showed 14.56-fold improvement in exposure in comparison to baicalin suspension. The results of SPIP and chylomicron flow blocking study showed that intestinal absorption and lymphatic transport process contributed to its systemic exposure. CONCLUSIONS: Based on the results, optimal nanoemulsion might be promising nanosystems for oral delivery of baicalin to satisfy clinical requirements. PMID- 29022401 TI - Green synthesis of silver nanoparticles using transgenic Nicotiana tabacum callus culture expressing silicatein gene from marine sponge Latrunculia oparinae. AB - In the present investigation, transgenic tobacco callus cultures and plants overexpressing the silicatein gene LoSilA1 from marine sponge Latrunculia oparinae were obtained and their bioreduction behaviour for the synthesis of silver nanoparticles (AgNPs) was studied. Synthesized nanoparticles were characterized using UV-visible spectroscopy, Fourier transformed infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), atomic flame electron microscopy (AFM) and nanoparticle tracking analysis (NTA). Our measurements showed that the reduction of silver nitrate produced spherical AgNPs with diameters in the range of 12-80 nm. The results of XRD analysis proved the crystal nature of the obtained AgNPs. FTIR analysis indicated that particles are reduced and stabilized in solution by the capping agent, which is likely to be proteins present in the callus extract. Interestingly, the reduction potential of LoSiLA1-transgenic callus line was increased three-fold compared with the empty vector-transformed calli. The synthesized AgNPs were found to exhibit strong antibacterial activity against Escherichia coli and Agrobacterium rhizogenes. The present study reports the first evidence for using genetic engineering for activation of the reduction potential of plant cells for synthesis of biocidal AgNPs. PMID- 29022402 TI - Antibiotics exposure and risk of inflammatory bowel disease: a systematic review. AB - AIM: The aim of this study was to critically assess all available evidence suggesting an association between antibiotic exposure and new onset of inflammatory bowel disease (IBD). MATERIALS AND METHODS: This systematic review was conducted according to the PRISMA statement and eligible studies were identified through search of PubMed, Embase and the Cochrane Library. Data on patient demographics, antibiotic exposure and confounding factors were analyzed. The Newcastle-Ottawa Scale (NOS) was used to assess the quality of eligible studies. RESULTS: A total of 15 observational studies (10 case control and five cohort) including 8748 patients diagnosed with IBD were systematically reviewed. Antibiotic exposure was mostly associated with Crohn's disease but not with ulcerative colitis. In particular, penicillin's, cephalosporins, metronidazole and fluoroquinolones were most commonly associated with the onset of Crohn's disease. The impact of tetracycline-family antibiotics on the pathogenesis of IBD was not clear. CONCLUSION: There may be an association between antibiotic exposure and the development of IBD; especially Crohn's disease. Even though, clinicians should be cautious when prescribing certain antibiotic regimens to patients with a strong family history of IBD, it should be emphasized that available data are not granular enough to reach any definitive conclusions. PMID- 29022403 TI - Developmental Approach for Behavior Learning Using Primitive Motion Skills. AB - Imitation learning through self-exploration is essential in developing sensorimotor skills. Most developmental theories emphasize that social interactions, especially understanding of observed actions, could be first achieved through imitation, yet the discussion on the origin of primitive imitative abilities is often neglected, referring instead to the possibility of its innateness. This paper presents a developmental model of imitation learning based on the hypothesis that humanoid robot acquires imitative abilities as induced by sensorimotor associative learning through self-exploration. In designing such learning system, several key issues will be addressed: automatic segmentation of the observed actions into motion primitives using raw images acquired from the camera without requiring any kinematic model; incremental learning of spatio-temporal motion sequences to dynamically generates a topological structure in a self-stabilizing manner; organization of the learned data for easy and efficient retrieval using a dynamic associative memory; and utilizing segmented motion primitives to generate complex behavior by the combining these motion primitives. In our experiment, the self-posture is acquired through observing the image of its own body posture while performing the action in front of a mirror through body babbling. The complete architecture was evaluated by simulation and real robot experiments performed on DARwIn-OP humanoid robot. PMID- 29022405 TI - European General Practice Research Network (EGPRN)Abstracts from the EGPRN conference in Riga, Latvia, 11?14 May 2017. Theme: 'Reducing the risk of chronic diseases in general practice/family medicine'. PMID- 29022404 TI - The significance of breastfeeding on sleep patterns during the first 48 hours postpartum for first time mothers. AB - Postpartum women sleep less during the early days following delivery. Long-term sleep disturbance and fatigue can have significant implications for physical and mental health, relationships, employment and parental competence. Most studies focus on the quality and quantity of maternal sleep between weeks one and six postpartum. We explored sleep patterns and reasons for wakefulness of first-time mothers immediately following delivery. Thirty first-time mothers completed a postnatal sleep questionnaire, detailing their total sleep time (TST), the reasons for being awake and their level of fatigue. The logs were completed in real time during the first 48 h postpartum, while they were still in a hospital environment. The data collected from the mothers in the study indicated that the mean TST in the first 48 h was 9.7 h. Of the factors explored only breastfeeding influenced the TST. Breastfeeding women slept on average 2.6 h longer than women who bottle-fed (p = .042). Impact statement What is already known on this subject: Childbearing affects women's sleep in many ways. Hormonal changes during pregnancy and postpartum as well as physiological and anatomical alterations, and the process of adaptation to the new parent's responsibilities contribute to changes in sleep architecture. Since first study of sleep and pregnancy published in 1968 there have been very few publications addressing maternal sleep postpartum. Most studies which have focussed on quality of maternal sleep in the first 6-months postpartum period describe the relationships between poor maternal sleep and postpartum depression and other mental health outcomes. What the results of this study add: We explored sleep patterns and reasons for wakefulness of first-time mothers immediately following delivery while they remained in the hospital environment. We found that environmental factors such as background noise, shared rooms, type of delivery, feeding and worrying about the neonate did not influence the total sleep time, however, the main outcome of our study is that breastfeeding promotes maternal sleep. What the implications are of these findings for clinical practice and/or further research: We believe that this study would be of interest to many obstetricians, general practitioners, nurses and midwives as well as to the general public. Appropriate counselling of patients early in postnatal period can improve their sleep patterns and reduce the risk of depression and other abnormal physical, psychological and social outcomes. PMID- 29022406 TI - Our experience with Syrian refugee patients at the child and adolescent psychiatry clinic in Gaziantep, Turkey. AB - Reporting from Turkey's frontier with the civil war in Syria, we examined the demographic characteristics, psychiatric diagnoses and treatments for the Syrian refugee patients who have presented to Gaziantep University, Child and Adolescent Psychiatry Clinic through 2016 and the first half of 2017 retrospectively, having aimed to understand the special characteristics and needs of this novel patient group. Within a year and a half, we evaluated 51 children and adolescents and 25 (51%) had come from refugee camps, where primary healthcare services are available. Twenty-eight patients (54.9%) had special educational needs. Among our patients, there were only 15 (29.4%) girls. After our experience with refugee patients, we conclude that the role of primary healthcare services in reaching psychiatric treatment should be investigated for child refugees that special educational needs of Syrian refugees in Turkey needs urgent attention and that more research is needed to establish whether gender may be a factor in negligence of internalising symptoms by refugee families. PMID- 29022407 TI - The potential of KDM3A as a therapeutic target in Ewing Sarcoma and other cancers. PMID- 29022408 TI - Screening of colorectal cancer: present and future. AB - INTRODUCTION: Colorectal cancer (CRC) is the third most common cancer in males and second in females, and the fourth most common cause of cancer death worldwide. Currently, about 60-70% of diagnosed cases in symptomatic patients are detected at an advanced stage of disease. Earlier stage detection through the use of screening strategies would allow for better outcomes in terms of reducing the disease burden. Areas covered: The aim of this paper is to review the current published evidence from literature which assesses the performance and effectiveness of different screening tests for the early detection of CRC. Expert commentary: Adequate screening strategies can reduce CRC incidence and mortality. In the last few decades, several tests have been proposed for CRC screening. To date, there is still insufficient evidence to identify which approach is definitively superior, and no screening strategy for CRC can therefore be defined as universally ideal. The best strategy would be the one that can be economically viable and to which the patient can adhere best to over time. The latest guidelines suggest colonoscopy every 10 years or annual fecal immuno-chemical test (FIT) for people with normal risk, while for individuals with high risk or hereditary syndromes specific recommendations are provided. PMID- 29022409 TI - Bilateral transient osteoporosis of the hip in pregnancy. PMID- 29022410 TI - Use of Amplatzer occluders for treatment of aorto-pulmonary fistulas - case and review of the literature. AB - INTRODUCTION: the use of amplatzer occluder family in daily clinical practice has already overcome on-label indications, with growing clinical experience and the technological evolution of devices. Areas covered: We present the case of a patient with a very rare complication following proximal aortic surgery treated using a unique strategy. A huge pseudoaneurysm around an ascending aortic prosthesis ruptured into the right pulmonary artery. A hybrid treatment strategy consisting of percutaneous closure of the fistula followed by cardiosurgery was chosen due to the patient's poor haemodynamic condition. We also review current clinical experience of endovascular treatment of aortopulmonary fistulas by searching case reports in PubMed. Expert commentary: Closure of the APF using an Amplatzer occluder via the antegrade venous approach is feasible, and may improve the haemodynamic conditions and decrease the risk of subsequent cardiac surgery. PMID- 29022411 TI - Comparison of acoustic therapies for tinnitus suppression: a preliminary trial. AB - OBJECTIVE: This study obtained preliminary data using two types of sound therapy to suppress tinnitus and/or reduce its functional effects: (1) Notched noise (1000-12,000 Hz notched within a 1-octave range centred around the tinnitus pitch match [PM] frequency); and (2) Matched noise (1-octave wide band of noise centred around the PM frequency). A third (Placebo) group listened to low frequency noise (250-700 Hz). DESIGN: Participants with bothersome tinnitus were randomised into one of the three groups and instructed to listen to the acoustic stimulus for 6 hours a day for 2 weeks. Stimuli were delivered using an iPod Nano, and tinnitus counselling was not performed. Outcome measures were recorded at the 0, 2 and 4 week study visits. STUDY SAMPLE: Thirty participants with constant and bothersome tinnitus were recruited and randomised. RESULTS: All groups showed, on average, overall improvement, both immediately post-treatment and 2 weeks following treatment. Outcomes varied between groups on the different measures and at the two outcome points. CONCLUSION: This study showed improvement for all of the groups, lending support to the premise that any type of sound stimulation is beneficial for relieving effects of tinnitus. These results may serve as a preliminary evidence for a larger study. PMID- 29022412 TI - Photo-sharing social media for eHealth: analysing perceived message effectiveness of sexual health information on Instagram. AB - Health professionals increasingly use social media to communicate health information, but it is unknown how visual message presentation on these platforms affects message reception. This study used an experiment to analyse how young adults (n = 839) perceive sexual health messages on Instagram. Participants were exposed to one of four conditions based on visual message presentation. Messages with embedded health content had the highest perceived message effectiveness ratings. Additionally, message sensation value, attitudes and systematic information processing were significant predictors of perceived message effectiveness. Implications for visual message design for electronic health are discussed. PMID- 29022413 TI - Moderate O3/O2 therapy enhances enzymatic and non-enzymatic antioxidant in brain and cochlear that protects noise-induced hearing loss. AB - Mitochondrial damage and oxidative stress are known to contribute to the pathogenesis of noise-induced hearing loss (NIHL). In this study, we examined the protective effect of O2/O3 mixture (ozone/oxygen) therapy against mitochondrial induced damage and oxidative stress by noise exposure in rat brain and cochlear. For this purpose, rats were divided into four groups: 1 - control group; 2 - noise-exposed group (100 dB); 3 - noise + O2/O3, and 4 - O2/O3 (30 ug/ml). After 14 d, animals were anesthetised. Rat brain and cochlear tissue were removed for evaluation of the histopathological damages, oxidative stress, and mitochondrial dysfunction in both tissues. Our findings indicated that noise caused pathological damage, oxidative stress, and mitochondrial dysfunction in rat brain and cochlear. Also, daily administration of an O2/O3 therapy (30 ug/ml intravenous) efficiently increased enzymatic and non-enzymatic antioxidant in brain and cochlear that this action led to inhibition of pathological damages, oxidative stress, reactive oxygen species formation, mitochondrial membrane potential (MMP) collapse, mitochondrial swelling, and cytochrome c release resulting from noise. These findings suggest that the moderate O2/O3 therapy enhances the capacity of enzymatic and non-enzymatic antioxidant in brain and cochlear that protects against NIHL. PMID- 29022414 TI - Iatrogenic Breast Infarct Following Coronary Artery Bypass Graft Surgery With Harvesting of Left Internal Mammary Artery. PMID- 29022415 TI - Doctrine of equivalents in Japan - criteria of special conditions and estoppel: final conclusion. PMID- 29022416 TI - Effects of 2-amino-9H-pyrido[2,3-b]indole (AalphaC) metabolic bio-activation on oxidative DNA damage in human hepatoma G2 (HepG2) cells. AB - 2-Amino-9H-pyrido[2,3-b]indole (AalphaC), which is a hazardous compound present in cigarette smoke, has been listed as probable human carcinogens (Group 2B). The carcinogenicity and genotoxicity of AalphaC were activated by the process of metabolic bio-activation. Whereas, few studies about genotoxicity induced by AalphaC have been reported. In this study, we took HepG2 cells as the model to investigate the relationship between oxidative DNA damage induced by AalphaC and metabolic bio-activation of AalphaC, which is of importance to unveil the mechanism of AalphaC genotoxicity. Firstly, the HepG2 cells were treated with 10 and 20 MUg/mL AalphaC, respectively. Then different concentrations of protein ranging from 0 to 1 mg/mL in S9 mixture solution were utilized to make cells have different capacities for metabolic activation. Intracellular AalphaC hydroxylated metabolites and 8-OHdG were estimated by using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The results showed that, at the same concentration of AalphaC, with the increment of concentration of protein in S9 mixture solution, the levels of hydroxylated metabolites and 8-OHdG/106dG increased. And at the same concentration of protein in S9 mixture solution, with the increment of concentration of AalphaC, the levels of hydroxylated metabolites and 8-OHdG/106dG increased. The hydroxylated metabolites and 8-OHdG were positively related by correlation analysis. In addition, the correlation coefficients of N-OH-AalphaC and 8-OHdG were maximum (R2 = 0.73 and 0.66). Taken together, these results indicated that the metabolic bio-activation of AalphaC might result in oxidative DNA damage. PMID- 29022417 TI - Prevalence of pain medication prescriptions in France, Germany, and the UK - a cross-sectional study including 4,270,142 patients. AB - OBJECTIVES: The goal of the present study was to analyze the prevalence of pain medication prescriptions in general practices in France, Germany, and the UK. METHODS: This study included all patients aged >=18 years followed in 2016 in general practitioner practices in France, Germany and the UK. The primary outcome was the prevalence of patients receiving prescriptions for pain medications in France, Germany, and the UK in 2016. The following drugs were included in the analysis: anti-inflammatory and antirheumatic products, non-steroids and analgesics including opioids, antimigraine preparations, and other analgesics and antipyretics. Demographic variables included age and gender. RESULTS: This study included 4,270,142 patients. The prevalences of pain medication prescriptions were 57.3% in France, 29.6% in Germany, and 21.7% in the UK. Although this prevalence generally remained consistent between age groups in France (54.3% 60.3%), it increased with age in Germany (18-30 years: 23.8%; >70 years: 35.8%) and in the UK (18-30 years: 9.3%; >70 years: 43.8%). Finally, the prevalence of pain medication prescriptions was higher in women than in men in all three countries. Paracetamol was prescribed to 82.3% and 60.1% of patients receiving pain medication in France and the UK, respectively, whereas ibuprofen was prescribed to 46.5% of individuals in Germany. CONCLUSIONS: The prevalence of pain medication prescriptions was higher in France than in Germany and the UK. Further research is needed to gain a better understanding of the differences in the prescription patterns between these three European countries. PMID- 29022418 TI - Patent protection: why the first filing needs to be right and how to achieve this. AB - Patent rights are crucial value drivers for individuals and technology companies, large or small. This article presents the selection of best practice pointers under the law of the European Patent Office on how to get the most out of patent applications, especially the 'first filing' that establishes a priority date for and sets the framework for future patent rights. PMID- 29022419 TI - Speech-evoked auditory brainstem response with ipsilateral noise in adults with unilateral hearing loss. AB - INTRODUCTION: Subjects with unilateral hearing loss (UHL) report difficulties in speech understanding in noise. Speech-evoked auditory brainstem response (S-ABR) provides cues for temporal and spectral encoding of speech in the brainstem. S ABR recording in noise increases its sensitivity in evaluating the auditory processing and related disorders. OBJECTIVES: Study speech encoding at the level of brainstem when the auditory system relies on one ear and to study the effect of noise on this encoding. SUBJECTS AND METHOD: This study included two groups: control group consisted of 15 adults with normal hearing sensitivity and study group consisted of 30 adults with UHL. The study group was further subdivided into two subgroups: study subgroup A (SG A) consisted of 15 adults with right functioning ears and study subgroup B (SG B) consisted of 15 adults with left functioning ears. S-ABR in quiet and with ipsilateral noise was recorded in both the groups using complex ABR advanced auditory research module. RESULTS: In UHL, there was a statistically significant delay in the S-ABR onset and offset in noise compared to quiet. Moreover, quiet-noise (+5 SNR) correlation was significantly low compared to NH. Furthermore, pitch representation (F0 amplitude) was significantly degraded with noise. In addition, there was a statistically significant noise-induced phase shift in the transition region of speech syllable in these subjects. CONCLUSION: In monaural processing, pitch representation (F0 amplitude) and cross-phaseogram were the main affected domains. Speech phonemes of transient origin can be confused in subjects with UHL. PMID- 29022420 TI - Recommendations on the use of ruxolitinib for the treatment of myelofibrosis. AB - OBJECTIVES: Myelofibrosis (MF) is a severe disease, with decreased life expectancy and heavy symptom burden. Ruxolitinib is the only approved pharmacotherapy for the treatment of MF patients. In Belgium, ruxolitinib is only reimbursed for MF patients with splenomegaly for whom the disease is categorized as intermediate-2 or high risk. The improvement of symptoms without spleen volume reduction is not considered sufficient to continue treatment. The aim of this manuscript is to provide guidance for the safe and effective administration of ruxolitinib, considering the particularities of the Belgian reimbursement criteria. METHODS: Our recommendations are based on a consensus reached during two meetings, where available data and observations derived from clinical experience were discussed. RESULTS AND DISCUSSION: We recommend changing the current Belgian reimbursement conditions to include the evaluation of disease related symptoms along with splenomegaly to decide whether ruxolitinib treatment should be continued or not. Indeed, the decrease in disease-related symptoms seems to be an equally important parameter as the decrease in splenic volume in the evaluation of the response to ruxolitinib. We also advocate for the treatment with ruxolitinib of MF patients in lower-risk categories with severe disease related symptoms, as this drug could greatly improve their quality of life. Optimization of the ruxolitinib dose is recommended to avoid an unnecessary decrease in platelet count or hemoglobin that may jeopardize treatment continuation. CONCLUSION: With the aim to optimize the treatment of MF patients, the Belgian regulation for ruxolitinib should be revised in terms of reimbursement criteria, dose titration, stopping rules, and patient follow-up. PMID- 29022421 TI - Characterization of two distinct lipomas: a comparative analysis from surgical perspective. AB - BACKGROUND: Lipomas are common benign soft tissue tumors that are well circumscribed and encapsulated. However, adipose masses that are not demarcated from the surrounding fat are often encountered. Two distinct types of lipomas were analyzed from surgical perspective. METHODS: Thirty patients were enrolled after lipoma excision and diagnosed with either encapsulated (n = 20) or non encapsulated lipoma (n = 10). Comparison of clinical variables, histologic analyses and characterization of the lipoma adipose-derived stem cells (ASCs) between the two lipomas were performed. RESULTS: Non-encapsulated lipomas were associated with older age at operation, larger tumor and increased seroma formation. The density of lymphatic vessels and gene expressions related to lymphatic vessel, inflammation and proliferation were increased in non encapsulated lipoma. ASCs of non-encapsulated lipoma showed enhanced proliferation when cultured with serum. CONCLUSIONS: Non-encapsulated lipomas and their ASCs showed distinct lymphatic histology and cellular response. These findings elucidated the pathogenesis and pathophysiology of lipomas. PMID- 29022422 TI - Investigating cognitive ability and self-reported driving performance of post stroke adults in a driving simulator. AB - Background Safe driving is a complex activity that requires calibration. This means the driver can accurately assess the level of task demand required for task completion and can accurately evaluate their driving capability. There is much debate on the calibration ability of post-stroke drivers. Objectives The aim of this study was to assess the cognition, self-rated performance, and estimation of task demand in a driving simulator with post-stroke drivers and controls. Methods A between-groups study design was employed, which included a post-stroke driver group and a group of similarly aged older control drivers. Both groups were observed driving in two simulator-based driving scenarios and asked to complete the NASA Task Load Index (TLX) to assess their perceived task demand and self rate their driving performance. Participants also completed a battery of psychometric tasks to assess attention and executive function, which was used to determine whether post-stroke cognitive impairment impacted on calibration. Results There was no difference in the amount of perceived task demand required to complete the driving task. Despite impairments in cognition, the post-stroke drivers were not more likely to over-estimate their driving abilities than controls. On average, the post-stroke drivers self-rated themselves more poorly than the controls and this rating was related to cognitive ability. Conclusion This study suggests that post-stroke drivers may be aware of their deficits and adjust their driving behavior. Furthermore, using self-performance measures alongside a driving simulator and cognitive assessments may provide complementary fitness-to-drive assessments, as well as rehabilitation tools during post-stroke recovery. PMID- 29022423 TI - Combination antiplatelet treatment in coronary artery disease patients: A necessary evil or an overzealous practice? AB - In seeking to improve care in coronary artery disease patients, further platelet inhibition has been occasionally applied beyond that provided by aspirin and a P2Y12 receptor antagonist. This review aims to offer insights about the rationale, the efficacy and safety of combination antiplatelet therapy, involving three or more agents. Overall, the use of glycoprotein (GP) IIb/IIIa inhibitors did not significantly modify the treatment effect of different antiplatelet strategies, including double vs standard clopidogrel, prasugrel vs clopidogrel, ticagrelor vs clopidogrel, cangrelor vs clopidogrel, and vorapaxar vs placebo. With the caveat that the use of GP IIb/IIIa inhibitor was not randomized, adding such an agent to aspirin and a P2Y12 receptor antagonist appears to carry a significantly increased bleeding potential. Moreover, adding vorapaxar to aspirin and clopidogrel-treated patients is associated with more bleeding events, while the bleeding potential is further exacerbated in cases of quadruplicate antiplatelet treatment including aspirin, clopidogrel, vorapaxar, and a GP IIb/IIIa inhibitor. In ST-segment elevation, myocardial infarction patients' administration of an intravenous antiplatelet agent (GP IIb/IIIa inhibitor or cangrelor), in addition to aspirin and a P2Y12 receptor antagonist, efficiently bridges the pharmacodynamic gap of oral agents. Cilostazol on top of aspirin and clopidogrel appears to be safe, although of questionable clinical benefit. In conclusion, combination antiplatelet therapy should be reserved only for selected cases and following thoughtful consideration of the associated risk/benefit ratio. PMID- 29022424 TI - Cytogenetic analysis of patients with primary amenorrhea in Eastern India. AB - Amenorrhea is the absence of menstruation in women of reproductive age. Previous reports suggest that chromosomal abnormality is the second most common cause of amenorrhoea. Early referral for cytogenetic evaluation is recommended for the identification of underlying chromosomal aberrations in amenorrhoea patients. This was an observational study which was conducted in Vivekananda Institute of Medical sciences, Kolkata, during January 2013-December 2015. This study aims to estimate the frequency and types of chromosomal abnormalities in primary amenorrhoea (PA) patients in Eastern India and correlate their hormonal profile with chromosomal reports. Clinical features of 150 patients were recorded with clinical expertise. Peripheral venous blood was taken following informed consent, followed by karyotyping for chromosomal analysis. Results revealed 76.1% of PA with normal female karyotype (46, XX) and 23.9% with different abnormal karyotypes. Among the abnormal karyotype constituents, 50% numerical abnormalities, most frequent being Turner syndrome, pure (n = 12, 8%) and mosaic (n = 5, 3.3%). Three cases (2%) showed male (XY) karyotype. The other cases showed X structural abnormalities. This study emphasises the need for cytogenetic analysis as integral part of the diagnostic protocol in case of PA for precise identification of chromosomal abnormalities and for appropriate management and counselling of these patients. PMID- 29022425 TI - Biologics in pediatric psoriasis - efficacy and safety. AB - INTRODUCTION: Childhood psoriasis is a special situation that is a management challenge for the treating dermatologist. As is the situation with traditional systemic agents, which are commonly used in managing severe psoriasis in children, the biologics are being increasingly used in the recalcitrant disease despite limited data on long term safety. Areas covered: We performed an extensive literature search to collect evidence-based data on the use of biologics in pediatric psoriasis. The relevant literature published from 2000 to September 2017 was obtained from PubMed, using the MeSH words 'biologics', 'biologic response modifiers' and 'treatment of pediatric/childhood psoriasis'. All clinical trials, randomized double-blind or single-blind controlled trials, open-label studies, retrospective studies, reviews, case reports and letters concerning the use of biologics in pediatric psoriasis were screened. Articles covering the use of biologics in pediatric psoriasis were screened and reference lists in the selected articles were scrutinized to identify other relevant articles that had not been found in the initial search. Articles without relevant information about biologics in general (e.g. its mechanism of action, pharmacokinetics and adverse effects) and its use in psoriasis in particular were excluded. We screened 427 articles and finally selected 41 relevant articles. Expert opinion: The available literature on the use of biologics such as anti tumor necrosis factor (TNF)-alpha agents, and anti-IL-12/23 agents like ustekinumab suggests that these are effective and safe in managing severe pediatric psoriasis although there is an urgent need to generate more safety data. Dermatologists must be careful about the potential adverse effects of the biologics before administering them to children with psoriasis. It is likely that with rapidly evolving scenario of biologics in psoriasis, these will prove to be very useful molecules particularly in managing severe and recalcitrant psoriasis in pediatric age group. PMID- 29022426 TI - Ignorance is bliss: women's knowledge regarding age-related pregnancy risks. AB - Pregnancy risks rise with age and the average age of first time mothers is rising. This study aimed to assess women's actual knowledge and their perceived knowledge of pregnancy complications relating to advanced maternal age. A cross sectional survey was administered to primiparous women measuring demographics, knowledge of age-related pregnancy risks, previous counselling and health literacy. Of the 218 women surveyed, the mean knowledge score was not significantly different for women <35 years of age compared to women >=35 years of age (p = .09). Although there was no difference in knowledge between the two groups, women >=35 years of age perceived themselves to be more knowledgeable than those under 35 (p < .01). The majority of women (67%) wanted further counselling on this topic and indicated a preference for their doctor to counsel them (76%). Women require counselling informing them of their increased risk of complications if they begin childbearing at older ages. Impact statement What is already known on this subject: The average age of first time mothers is rising worldwide. Pregnancy risks rise with age, especially in first time mothers. Previous studies have shown that knowledge of age-related pregnancy risks correlate with educational level and health literacy. What the results of this study add: This study supports those findings and also demonstrates that perceived knowledge does not correlate with measured knowledge of age-related pregnancy risks. Women >=35 years of age (higher-risk women) are no more knowledgeable than their younger counterparts though they perceive themselves to be better informed. Greater education regarding these risks may allow women to mitigate some of these risks through lifestyle and diet alteration and will prepare women for what to expect if these risks and complications occur. The majority of women in this study seek pregnancy information on the internet, but desire further counselling from their doctors regarding age-related pregnancy risks. What the implications are of these findings for clinical practice and/or further research: Given these results, physicians must consider making greater efforts to counsel women about pregnancy risks in advanced maternal age and tailor these conversations to suit the educational level and health literacy of each individual patient. PMID- 29022429 TI - TCN Vol. 4, No. 1: Overview: The editors. PMID- 29022428 TI - Editorial board page for "The Clinical Neuropsychologist", Volume 4, Number 1. AB - This is a scanned image of the original Editorial Board page(s) for this issue. PMID- 29022427 TI - Confirming the timing of phase-based costing in oncology studies: a case example in advanced melanoma. AB - AIMS: The utilization of healthcare services and costs among patients with cancer is often estimated by the phase of care: initial, interim, or terminal. Although their durations are often set arbitrarily, we sought to establish data-driven phases of care using joinpoint regression in an advanced melanoma population as a case example. METHODS: A retrospective claims database study was conducted to assess the costs of advanced melanoma from distant metastasis diagnosis to death during January 2010-September 2014. Joinpoint regression analysis was applied to identify the best-fitting points, where statistically significant changes in the trend of average monthly costs occurred. To identify the initial phase, average monthly costs were modeled from metastasis diagnosis to death; and were modeled backward from death to metastasis diagnosis for the terminal phase. Points of monthly cost trend inflection denoted ending and starting points. The months between represented the interim phase. RESULTS: A total of 1,671 patients with advanced melanoma who died met the eligibility criteria. Initial phase was identified as the 5-month period starting with diagnosis of metastasis, after which there was a sharp, significant decline in monthly cost trend (monthly percent change [MPC] = -13.0%; 95% CI = -16.9% to -8.8%). Terminal phase was defined as the 5-month period before death (MPC = -14.0%; 95% CI = -17.6% to 10.2%). LIMITATIONS: The claims-based algorithm may under-estimate patients due to misclassifications, and may over-estimate terminal phase costs because hospital and emergency visits were used as a death proxy. Also, recently approved therapies were not included, which may under-estimate advanced melanoma costs. CONCLUSIONS: In this advanced melanoma population, optimal duration of the initial and terminal phases of care was 5 months immediately after diagnosis of metastasis and before death, respectively. Joinpoint regression can be used to provide data-supported phase of cancer care durations, but should be combined with clinical judgement. PMID- 29022430 TI - Contributions of Kurt Goldstein to neuropsychology. AB - Kurt Goldstein was a pioneer of neuropsychology; his long career bridged a time span between nineteenth century European behavioral neurology and the modern era of clinical neuropsychology. In this retrospective analysis of his major contributions, it is suggested that many of his previously ignored or rejected ideas have gained wide acceptance in their modern versions. Illustrations of this suggestion are offered in the areas of conceptualization of symptom formation, frontal lobe function, the abstract attitude, aphasia, schizophrenia, rehabilitation, and neuropsychological assessment. PMID- 29022432 TI - Effects of language disturbances on premorbid estimates of IQ in mild dementia. AB - Two methods were used to estimate premorbid IQ in a sample of 68 patients with mild dementia: (1) the National Adult Reading Test (NART), a present ability measure, and (2) an age, sex, race, education and occupation regression formula, a demographically based estimate (DIQ). The dementia sample consisted of probable Alzheimer's disease, multi-infarct dementia and a mixture of the two. The sample was divided into three levels of language disturbances (no language disturbance, naming or fluency disturbance, or both naming and fluency disturbance) based upon performance on the Visual Naming test and the Controlled Oral Word Association test. The NART IQ estimates in patients with one or more language disturbances were significantly lower than those in patients without language disturbances despite equivalent DIQ and Mini-Mental Status exam performance. The results suggest that the applicability of the NART to dementia patients with prominent language disturbances is limited. PMID- 29022433 TI - The MMPI and neurologic dysfunction: Profile configuration and analysis. AB - This study examined the application of the Minnesota Multiphasic Personality Inventory (MMPI) to the assessment of personality and emotional status in neurologic patients. Eighteen specialists in the clinical neurosciences examined the standard MMPI and indicated those items they felt were potentially tapping valid manifestations of neurologic damage or dysfunction. Forty-four items, loading primarily on the Hs, Hy, and Sc scales, were identified. These items were then deleted from the standard MMPI protocols of a heterogeneous group of 115 verified neurologic patients and the protocols rescored in the usual fashion. Corresponding high-points between the original MMPI and the modified version occurred in 46% of the cases. Comparable two-point code types occurred in only 29% of the cases. Taking into account the neurologic content of the MMPI can thus considerably alter the MMPI profile of a neurologic patient. Caution should thus be exercised with regard to the application and literal interpretation of the MMPI in neurologic cases. PMID- 29022434 TI - A consideration of the comparability of the WAIS and WAIS-R. AB - The WAIS-R continues to be used on a widespread basis as a substitute for the WAIS in neuropsychological assessment, in spite of cautions that have been published (Bornstein, 1987). Although differences in results obtained with the two instruments have been reported, a feeling seems to exist that content differences between the two tests are minimal. This paper presents a detailed comparison of the subtests and reports that substantial differences in content are often present. Finally, our literature search failed to reveal a single study in which the WAIS-R has been shown to be sensitive to cerebral damage through controlled comparisons of brain-damaged and control groups. Sufficient evidence is not yet available to justify substitution of the WAIS-R for the WAIS in neuropsychological assessment. PMID- 29022436 TI - Use of the national adult reading test to estimate premorbid iq in dementia. AB - Two methods for estimating premorbid IQ were employed in a sample of 199 dementia patients and 26 control subjects: (1) the National Adult Reading Test (NART), a present ability measure, and (2) an age, sex, race, education and occupation regression formula-a demographically based estimate. The dementia sample consisted of probable Alzheimer's disease, multi-inf arct dementia and a mixture of the two. Controls consisted of the spouses of the patient sample. The patient sample was divided into three levels of dementia severity equated for age and level of education. The NART estimates in the mild and moderate/severe dementia groups differed significantly from those for the very mildly demented patients and controls. The results suggest that the applicability of the NART in estimating premorbid IQ in dementia may be limited. PMID- 29022437 TI - Malingering following Minor head trauma. AB - The possibility of malingering should be considered whenever an opportunity for financial gain exists or when the subjective complaints outweigh the objective findings. Minor-head-injury patients often meet one or both of these criteria. Four cases of probable malingering and one case of possible malingering after minor head injury are discussed. Observations of untruthfulness, test abnormalities more severe than predicted by knowledge of the injury, bizarre results on Face-Hand (Double Simultaneous Stimulation) testing, and especially forced-choice testing of memory complaints provided useful diagnostic data in these cases. Performance on a forced-choice technique that is significantly worse than chance is presumed to result from the deliberate production of wrong answers. An improved method of forced-choice testing based on work by Hiscock and Hiscock (in press) is presented. PMID- 29022438 TI - Interrater agreement on the Benton visual retention test. AB - To address overlapping needs in clinical neuropsychology and epidemiology of the elderly, we report an in-depth analysis of interrater scoring for a test commonly used to assess visual memory in older persons. Benton Visual Retention Test protocols (Form C, Administration A) from 277 community-dwelling male participants (M = 65.2 years) in two ongoing cardiovascular epidemiologic studies were scored independently by two trained raters. Interrater reliabilities, calculated as intraclass correlations, were .963 and .974 for total number of correct reproductions and total number of errors, respectively. Interrater agreements on categorical determinations of the presence or absence of 6 error codes on 10 separate designs were evaluated using kappa measures of agreement. Kappa values for each of the 10 designs ranged between .780 and .930. Kappa values for each of the error codes ranged from a high of .976 for omissions to a moderate .737 for size errors. Kappa values by error code type within each of the 10 designs revealed particular problem areas for misplacements on design 9 and size errors on design 10 (kappa being as low as .440 and .480 respectively). Suggestions for improving the accuracy of scoring are presented. PMID- 29022439 TI - Performance measures of 16- to 86-year-old males and females on the auditory verbal learning test. AB - This study reports Auditory Verbal Learning Test (AVLT) data for 153 adults in age groups spanning seven decades, with approximately equal numbers of males and females and matched for intelligence, education, and occupation. Overall performance deteriorated with increased age, females performing better than males. Older subjects recalled fewer words, were more susceptible to information overload during input, showed diminished retrieval efficiency, and had a decline in memory for the source of items. In contrast, rate of learning, forgetting over 20-min, monitoring of recall, and interference effects remained stable across the age range. PMID- 29022441 TI - TCN Vol. 6, No. 2: Overview: The editors. PMID- 29022440 TI - Some gnomes worth knowing. AB - Clinical neuropsychology varies greatly in its level of development even in countries where it has reached a high degree of sophistication in some centres. Benton (1987) pointed to the continuation of vague terminology among many psychologists in this area, even some who consider they are practising neuropsychology. This vagueness is often accompanied by a primitive conceptualization of the organization of the brain for the purpose of subserving higher functions and "an uncritical interpretation of test findings" and "the drawing of unwarranted conclusions" from test results about the state of the brain. After a brief consideration of the network concept of cerebral functioning, some examples of errors and difficulties in test interpretation are given in the form of gnomes or aphorisms from prominent clinicians to demonstrate the need for improvement of the education of all psychologists who are likely to be faced with essentially neuropsychological problems. PMID- 29022443 TI - A Review of reference group data from normal children for the halstead-reitan neuropsychological test battery for older children. AB - This article reviews data gathered from samples of normal children who were assessed with the Halstead-Reitan Neuropsychological Test Battery for Older Children (HRB-OC), ages 9-14 years. Graphic comparisons by age group indicate clear developmental trends for all measures except TPT-memory, TPT-localization, and Seashore Rhythm Test. Methods used to analyze variability of the measures suggested that the following may be unreliable: Tactual Performance Test, all timed measures, memory and localization tasks; Trail Making Test, Part B among younger children; Speech-Sounds Perception Test; and Seashore Rhythm Test. These results are consistent with published reliability data from a study of referred children. The HRB-OC remains a powerful tool when combined with multiple methods of assessment and clinical expertise. PMID- 29022444 TI - Free-recall, cued-recall and recognition procedures with three verbal memory tests: Normative data from age 20 to 79. AB - New versions of three verbal learning tests (paragraph learning, list learning, and word-pair learning) were normed on 420 subjects, aged 20 to 79. These tasks used multiple acquisition trials, employed a delayed retention trial, incorporated the Buschke Selective Reminding procedure and utilized a continuum of free-recall, cued-recall, and recognition tasks. Norms are presented for six, 10-year age groups equated for intellectual level and gender. Normative groups also were screened for depression, dementia, and psychiatric illness. Results showed that all three tasks were highly reliable, demonstrated promising construct validity, and appeared to be measuring the same underlying cognitive function. Basic interpretative stategies for use with clinical data are proposed. PMID- 29022445 TI - Editorial board page for "The Clinical Neuropsychologist", Volume 6, Number 2. AB - This is a scanned image of the original Editorial Board page(s) for this issue. PMID- 29022446 TI - Analysis of learning and rate of forgetting in age-associated memory differences. AB - This study used a visual free-recall paradigm to examine rate of forgetting in a sample of 255 normal adults (age range 18-91 years). Subjects were administered the Visual Reproduction Subtest (VR) from Form I of the Wechsler Memory Scale, along with a 30-min delayed-recall procedure. Results revealed that older adults performed below levels obtained by younger ones on both phases of the VR. However, analysis revealed no differences among age groups in rate of forgetting. Lower scores for older subjects on the delayed-recall task appeared to reflect differences in initial learning, not an accelerated rate of forgetting. Normative data for rate of forgetting were provided for adults in all age groups. PMID- 29022447 TI - Memory failure in binswanger's disease and alzheimer's disease. AB - The heterogeneity within vascular dementia has made neuropsychological research in this area difficult to interpret. We studied a subtype of vascular dementia, Binswanger's disease (BD), diagnosed according to recently specified clinical and radiological criteria. Measures of episodic and semantic memory were administered to BD patients, patients with Alzheimer's disease (AD) comparable to the BD sample in dementia severity, age, and education, and normal controls. Episodic memory was more defective in AD than in BD; these patient groups were equally impaired on measures of semantic memory. The findings suggest that assessment of episodic memory may be useful in differentiating AD from BD. PMID- 29022448 TI - Confrontation naming in normally developing children: Word-retrieval or word knowledge? AB - This study presents normative data on the Boston Naming Test (BNT) for 382 normally developing children as a framework for evaluating what the BNT measures: word-retrieval or vocabulary. A Revised Children's BNT is proposed based on item analyses of the 212 boys' responses. Some BNT items were part of the boys' vocabulary at all ages, some entered their working vocabulary with age, some were affected by age and experience, and others were not part of the boys' working vocabulary at any age. Error analyses revealed that the pattern of errors in the boys differed from that of adult aphasics. Two error types, semantic and circumlocution, accounted for 82% of the boys' errors whereas three types characterize adult aphasics: semantic, phonemic, and circumlocution. The boys made semantic errors most frequently on age-related items; circumlocution errors were made on items that were not part of their working vocabulary. Suggestions for evaluating aphasic-like errors are presented. PMID- 29022449 TI - Interrater reliability in scoring the Wisconsin card sorting test. AB - Neuropsychological instruments continue to proliferate the field, while studies systematically addressing their accuracy and standardization have lagged behind. This paper examines the standard scoring criteria on a widely used neuropsychological test, the Wisconsin Card Sorting Test (WCST). Specifically, the scoring criteria for the perseveration variables are complex and interrater reliability had not yet been established. Study 1 revealed excellent interrater reliability between three individuals experienced with the WCST who had independently learned the scoring procedures. Study 2 demonstrated excellent interrater agreement among six novice raters. Some of the novice scorers used supplemental scoring instructions that were developed in an attempt to improve understanding of the manual. The supplemental scoring instructions reduced training time by 41% without affecting the high reliability between the raters. This paper also illustrates an appropriate use of generalizability theory, a powerful statistical method to examine reliability. PMID- 29022451 TI - Evidence for early acquisition of visual organization ability: A developmental study. AB - This study presents normative data on the Hooper Test of Visual Organization for 434 normally developing children within the context of adequate confrontation naming, as measured by the Boston Naming Test. Age and gender differences were observed. Children's capacity to identify common objects from fragmented visual information approached borderline adult levels by the age of 6. The boys attained adult performance levels by age 12, but the girls did not reach these adult levels at any age. This suggests that visual organization ability may have a longer developmental course in girls than in boys. A reordered Children's version of the Hooper is proposed based on item analyses of the 218 boys' responses. PMID- 29022450 TI - Modification of the stroop color word test improves differentiation between patients with mild head injury and matched controls. AB - Previous studies have indicated that patients with mild head injury have no specific deficits in selective attention as assessed with the Stroop Color Word Test. It has been reported that patients may be slower to name colors, but that they are not disproportionately slower on the subtask with color-word interference. The present study examined whether the performance of patients with mild head injury (MHI) was worse than that of nonconcussed controls on a modified Stroop interference subtask of increased complexity. Patients (n=44) were individually matched with controls for age, sex, and education. It was found that MHI patients were significantly slower on this modified subtask, whereas there was no significant difference between the two groups with the original interference subtask. The findings support the hypothesis that the cognitive disturbances of patients with mild head injury may be subtle and only demonstrable with very sensitive tests. PMID- 29022452 TI - Statement regarding the use of nondoctoral personnel for neuropsychological assessment. PMID- 29022453 TI - The MMPI and closed-head injury. AB - This study examined Minnesota Multiphasic Personality Inventory profile configuration in matched samples of males (n = 77) and females (n = 25) suffering from closed-head injury. For the males, the mean group high-point was the 5c scale; the mean group high-point for the females was the D scale. For the males, the mean group two-point code was the 8-2 configuration; the mean group two-point code for the females was the 2-3 configuration. The males as a group also scored significantly higher than the females on the Sc scale. The D scale was the most frequently elevated clinical scale and high-point for both groups. The overall pattern of findings also suggested a greater predominance of Hs and Hy two-point code types for the females. The results are discussed in terms of the need to pay critical attention to methodological issues in neuropsychological research and practice. PMID- 29022455 TI - Editorial board page for "Cognition & Emotion", Volume 6, Number 5. AB - This is a scanned image of the original Editorial Board page(s) for this issue. PMID- 29022456 TI - Recent Books. AB - Fischer, A.H. (1991). Emotion scripts: A study of the social and cognitive facets of emotions. Leiden: DSWO Press. ISBN 90-6695-053-6, 220 pp Franks, D.D. & McCarthy, E.D. (Eds) (1989). Sociology of emotions: Original essays and research papers. Greenwich & London: JAI Press. ISBN 0-89232-759-6, 302 pp, $52.50 Scheffler, I. (19911. In praise of the cognitive emotions. New York: Routledge. ISBN 0-415-90363-7 (hbk)/90364-5 (pbk), 174 pp, L30 (hbk) Forgas, J.P. (Ed.) (19911. Emotion and social judgements. Oxford: Pergamon Press. ISBN 0-08-040236-4 (hbk)/040235-6 (pbk), 301 pp, $76/L38 (hbk), $31.95/L15.95 (pbk) Blechman, R.A.(Ed.) (1990). Emotions and the family: For better or for worse. Hillsdale, NJ: Lawrence Erlbaum Associates Inc. ISBN 0-8058-0136-7, 241 pp, $36/L26 Plutchik, R. & Kellerman, H. (Eds) (1990). Emotion: Theory, research and experience, Vol. 5: Emotion, psychopathology and psychotherapy. San Diego: Academic Press. ISBN 0-12-558705-8, 275 pp, $69/L49.50 Heider, K.G. (Ed.) (1991). Landscapes of emotion: Mapping three cultures of emotion in Indonesia. Cambridge University Press. ISBN 0-52140151-8, 332 pp, $44.50/L35 Leiddmeijer, L. (1991). Emotions: An experimental approach. Tilburg University Press. ISBN 90-361-9634-5, 235 pp, Df 1.59 Kemper, T.D. (Ed.) (1990). Research agenda in the sociology of emotion. New York: State University of New York Press. ISBN 0-7914-0269-X (hbk)/0270-3 (pbk), 335 pp, $57.50 (hbk), $18.95 (pbk) Scheff, T.J. (1990). Microsociology: discourse, emotion and social structure. University of Chicago Press. ISBN 0-226-73666-0, 214 pp, $34.50/L23.95 Averill, J.R. & Nunley, E.P. (1992). Voyages of the heart: Living an emotion ally creative life. New York: Free Press. ISBN 0-02-9011086, 358 pp, $26.95/ L16.95. PMID- 29022457 TI - Training Young Children to Acknowledge Mixed Emotions. AB - The failure of children to acknowledge mixed, contradictory emotions is equally of developmental and clinical interest. Developmentally, children do not ordinarily acknowledge the existence of mixed emotions until late in middle childhood. Clinically, the failure to recognise mixed feelings toward others or self is a common presenting problem. The question addressed here is, how readily can such limitations be corrected in children of different ages. Two studies are reported showing that children as young as 6 and 7 years, who initially revealed little understanding of mixed feelings, showed more insight after a short training session. In Experiment 1. two groups of children were equated for their inability to diagnose the mixed feelings of a story character. Subsequently, both groups were presented with a second story containing a similar conflictual event, but only one group was prompted to consider the character's emotional reaction to each component of the conflict. Children in the prompted group were more accurate in diagnosing the character's emotional reaction at the end of the story than the control group, and they maintained their superiority on a post-test story where no prompts were given. Experiment 2 included a similar training procedure. but with a more stringent measure of post-test generalisation: Children were asked to describe or invent their own examples of emotionally charged conflictual situations. Four- and five-year-olds showed little benefit from the training session, but six- and seven-year-olds again showed considerable benefit. Taken together, the two experiments suggest that young school age children often fail to acknowledge mixed feelings because they engage in a cursory appraisal of the elements of an emotionally charged situation; highlighting the elements is sufficient to improve performance. Preschool children, however, appear to suffer from more basic limitations in their ability to integrate the relevant information. PMID- 29022458 TI - Conjunction in the Language of Emotions. AB - Oatley and Johnson-Laird (1987) have proposed a cognitive theory of emotion. According to this theory, there are five basic emotions. A major prediction of the theory is that it should permit satisfactory definitions for all the emotion words in a language, and this was essayed for the English language by Johnson Laird and Oatley (1989). The theory proposes that only one emotional state can be operative at a time, and therefore words referring to mixed emotions were defined by Johnson-Laird and Oatley as disjunctions of basic emotions. Two experiments are reported which com pared these disjunctive definitions with conjunctive definitions (i.e. definitions inconsistent with the theory). For a number of words, conjunctive definitions tended to be preferred. This tendency was increased when the disjunctions and conjunctions were made more explicit. This finding sug gests that Oatley and Johnson-Laird's theory should be modified so as to embrace the conjunction of emotion. That is, it should allow that two or more emotions can be exnerienced in parallel. PMID- 29022459 TI - Unilateral Facial Contractions Produce Mood Effects on Social Cognitive Judgements. AB - This study demonstrates that left and right unilateral facial contractions have similar effects on the expression of ethnic stereotypes as do negative and positive moods induced by more conventional means. Subjects who con tracted the left side of their face (negative mood inducer) were more likely to express negative stereotypes of ethnic groups than were subjects who contracted the right side of their face (positive mood inducer). This parallels previous findings obtained using two standard mood inductions: the Veltens mood induction procedure; and a musical mood induction procedure. Given that unilateral facial contractions manipulate mood without cognitive involvement, this mood induction may have advantages over previously used procedures, the effects of which are subject to cognitive mediation explanations. In addition, these results suggest that, at least for the expression of ethnic stereotypes, mood's influence on cognition does not depend on a cognitive component of mood induction. PMID- 29022460 TI - The Relative Dominance of Different Facial Expressions of Emotion under Conditions of Perceptual Ambiguity. AB - Facial expressions of happiness, excitement, surprise, fear, anger, disgust, sadness, and calm were presented stereoscopically to create pair wise perceptual conflict. Dominance of one expression over another as the most common result, but basic emotions (happiness, fear, etc.) failed to dominate non-basic emotions (excitement, calm), Instead, extremely pleasant or extremely unpleasant emotions dominated less valenced emotions (e.g. surprise). Blends of the presented pairs also occurred, mainly when the emotions were adjacent according to a circumplex structure of emotion. Blends were most common among negatively valenced emotions, such as fear, anger, and disgust. PMID- 29022461 TI - Facilitating the Furrowed Brow: An Unobtrusive Test of the Facial Feedback Hypothesis Applied to Unpleasant Affect. AB - We examined the hypothesis that muscle contractions in the face influence subjective emotional experience. Previously, researchers have been critical of experiments designed to test this facial feedback hypothesis, particularly in terms of methodological problems that may lead to demand characteristics. In an effort to surmount these methodological problems Strack, Martin, and Stepper (1988) developed an experimental procedure whereby subjects were induced to contract facial muscles involved in the production of an emotional pattern, without being asked to actually simulate an emotion. Specifically, subjects were required to hold a pen in their teeth, which unobtrusively creates a contraction of the zygomaticus major muscles, the muscles involved in the production of a human smile. This manipulation minimises the likelihood that subjects are able to interpret their zygomaticus contractions as representing a particular emotion, thereby preventing subjects from determining the purpose of the experiment. Strack et al. (1988) found support for the facial feedback hypothesis applied to pleasant affect, in that subjects in the pen-in-teeth condition rated humorous cartoons as being funnier than subjects in the control condition (in which zygomaticus contractions were inhibited). The present study represents an extension of this nonobtrusive methodology to an investigation of the facial feedback of unpleasant affect. Consistent with the Strack et al. procedure, we wanted to have subjects furrow their brow without actually instructing them to do so and without asking them to produce any emotional facial pattern at all. This was achieved by attaching two golf tees to the subject's brow region (just above the inside comer of each eye) and then instructing them to touch the tips of the golf tees together as part of a "divided-attention" experiment. Touching the tips of the golf tees together could only be achieved by a contraction of the corrugator supercilii muscles, the muscles involved in the production of a sad emotional facial pattern. Subjects reported significantly more sadness in response to aversive photographs while touching the tips of the golf tees together than under conditions which inhibited corrugator contractions. These results provide evidence, using a new and unobtrusive manipulation, that facial feedback operates for unpleasant affect to a degree similar to that previously found for pleasant affect. PMID- 29022462 TI - What do students think about the situational judgment test? PMID- 29022464 TI - Editorial board page for "The Clinical Neuropsychologist", Volume 7, Number 2. AB - This is a scanned image of the original Editorial Board page(s) for this issue. PMID- 29022463 TI - The association of postdoctoral programs in clinical neuropsychology (APPCN). AB - This paper describes the formation of the Association of Postdoctoral Programs in Professional Psychology (APPCN). The historical and organizational concept of APPCN is described and the founding members of this evolving network are enumerated. Conceptual and practical consultations are invited from neuropsychologists. PMID- 29022465 TI - Performance of adults ages 20 to 90 on the abbreviated Wisconsin card sorting test. AB - Studies of the potential effect of aging on Wisconsin Card Sorting Test (WCST) performance have found older adults to perform at an impaired level relative to younger adults. This study examined the sensitivity of the 64-card version of the WCST to age-related changes in 140 healthy adults, ages 20 to 90 years. Results revealed significant linear trends for age, demonstrating decreased competence on variables of accuracy (e.g., Total Errors, Categories) and perseveration. PMID- 29022466 TI - Analyzing clinical ratings of performance on pediatric neuropsychological tests. AB - This project examined the agreement among pediatric neuropsychologists when rating the functioning of normal and low-birth-weight children in seven neuropsychological domains. In Phase 1, two neuropsychologists rated 154 children; in Phase 2, three neuropsychologists rated 41 children. Intraclass correlations of agreement in Phase 1 were: attention .39, intelligence .85, auditory/linguistic .82, haptic .70, visual perceptual/visuomotor .78, mnestic .72, and global .61. Intraclass correlations observed in Phase 2 were similar to those found in Phase 1 except that agreement in rating attention increased to .53. Linear modeling of global judgments revealed that two raters emphasized the auditory/linguistic, haptic, and visual perceptual/visuomotor domains in deriving global ratings, whereas the third emphasized the intellectual and attentional domains. In general, agreement among raters was sufficient to justify using clinical ratings to combine individual test scores into more general behavioral measures. PMID- 29022467 TI - Prescription privileges for psychologists: A professional affairs committee survey of division 40 members. AB - The Professional Affairs Committee conducted a survey of its members regarding the desirability of training for prescription privileges among its membership. While a majority of those surveyed appeared to be in favor of such training, many members expressed concern regarding the complexity of the training involved and its impact on the rigorous educational expectations already in place for clinical neuropsychologists. PMID- 29022468 TI - Comparison of deaf and hearing children on measures of selective attention in two age groups. AB - The Stroop and Posner tasks, used as measures of expressive and receptive attention, were administered to two age groups of deaf and hearing children. The purpose was to determine if developmental age would affect subjects' performance and to compare performance of the deaf with hearing subjects. The mean age for the younger deaf subjects was 9.9 years and the younger hearing subjects was 9.4 years. The mean age for the older deaf and hearing subjects was 13.7 years each. The results revealed higher interference in the Stroop tasks for the younger deaf and hearing groups than for the older groups. There were no significant differences between deaf and hearing subjects' performance on the Stroop and Posner tasks when they were of similar age. The results indicate that the deaf had no difficulty compared to the hearing in either aspect of selective attention. It is suggested that separate norms for the Stroop and Posner tasks be developed based on developmental age. PMID- 29022469 TI - A prorating system for the wechsler memory scale-revised. AB - Various sensory and motor impairments may render a patient unable to complete certain subtests on the Wechsler Memory Scale-Revised (WMS-R). Consequently, when a subtest is missing from the battery, the clinician is unable to obtain one or more of the summary indices typically provided by the WMS-R. The present study used a mixed clinical sample (N = 300) to derive regression weights that may be used to predict a patient's performance on each of the WMS-R memory indices when a subtest is missing. The relative contributions of each subtest to the scale with which it is associated and the predictive accuracy of the regression equations are discussed. PMID- 29022470 TI - Developmental norms for the wisconsin card sorting test in 5-to 12-year-old children. AB - The Wisconsin Card Sorting Test (WCST) (Berg, 1948; Heaton, 1981) was given to 233 five-to 12-year-old normal children. Participants' characteristics were balanced according to: (a) age, (b) socioeconomic status, and (c) gender. An academic achivement questionnaire was also administered. No significant differences between socioeconomic and gender groups were observed. Nonperseverative Errors, Errors, and Categories Achieved scores correlated with academic achievement in different areas. Developmental norms for the WCST are presented. PMID- 29022471 TI - Clinical discriminations and neuropsychological tests: An appeal to bayes' theorem. AB - Neuropsychological tests are routinely used to make clinical judgements regarding the classification, diagnosis, or prediction of subject variables. The accuracy of those decisions depends on the discriminant validity of the tests used. The traditional method of validating psychological tests by comparing the mean test scores of reference groups is often unrelated to actual clinical discriminations. Alternative measures based on Bayesian probabilities are reviewed, with specific application to neuropsychological assessment. PMID- 29022472 TI - TCN VOL. 7, No. 2: Overview: The editors. PMID- 29022473 TI - Hemispheric bias of the mini-mental state examination in elderly males. AB - In this study we examined the influence of lateralized brain lesions on Mini Mental State Examination (MMSE) performance using the psychometric concepts of intercept and slope bias. Four patient groups of elderly males (normal control, right-hemisphere stroke, left-hemisphere stroke, and dementia) were studied. Right-and left-hemisphere stroke groups were equated for global level of neuropsychological impairment independently of their MMSE performances. Results indicated that the right-hemisphere stroke patients' MMSE scores did not differ from those of controls but were significantly superior to the left-hemisphere stroke and dementia patients' MMSE performances. Additionally, correlations between the MMSE and three neuropsychological composite measures assessing global, verbal, and nonverbal skills, demonstrated poor correspondence among patients with lateralized lesions, especially those with right-hemisphere brain dysfunction. Results are interpreted as supporting the presence of both intercept and slope bias when the MMSE is used with patients having unilateral lesions. PMID- 29022474 TI - Awareness of behavioral limitations after traumatic brain injury: A cross cultural study of New Zealand maoris and non-maoris. AB - Forty-one New Zealand traumatic brain injury (TBI) patients were studied using the Patient Competency Rating Scale (PCRS) and selected neuropsychological tests. An attempt was made to replicate earlier reported findings in American TBI patients and determine if cultural factors influence self-perceptions (i.e., awareness) of impairments after brain injury. TBI patients with Maori ancestry were compared to New Zealanders with non-Maori (English) ancestry. Both groups showed no correlation between their actual neuropsychological status and self reports of behavioral competency. In contrast, the ratings of their relatives concerning their behavioral competency were correlated with the patient's neuropsychological test performance. Maori TBI patients reported less behavioral competency than non-Maori TBI patients. Non-Maori TBI patients' performance on the PCRS replicated the findings obtained with American TBI patients. An earlier finding of slow speed of left-hand finger tapping in patients who overestimate their behavioral competency was not replicated, but a confounding of ethnicity and finger-tapping speed was observed. Brain damage may contribute to patients' misperceptions of their behavioral competency, but cultural factors also seem to play an important role. PMID- 29022475 TI - Logical memory in the wechsler memory scales - does the order of passages affect difficulty in an university sample? AB - The relative difficulty of the logical memory passages on WMS-1, WMS-2, and WMS-R were investigated in different orders of presentation within and between test forms. No evidence of order effects on difficulty level was obtained though, as expected, the second passage on WMS-1 was the most difficult over all orders. The first passages on WMS-1 and WMS-2 and both passages on WMS-R appear to be of equivalent difficulty. PMID- 29022476 TI - Spurious WAIS-R cholinergic profiles in schizophrenia. AB - The Fuld (1984) cholinergic profile based on the WAIS and WAIS-R age scaled scores has been shown to have moderate sensitivity and varying degrees of specificity in identifying dementia of the Alzheimer's type. The utility of this algorithm has increasingly been in doubt. The present study used young, well diagnosed schizophrenic inpatients, a nondemented population with known cognitive deficits, to examine the specificity of the Fuld profile and its relationship to demographic and neuropsychological indices. The results found that the subjects who demonstrated a positive cholinergic profile (15%) did not differ neuropsychologically from the remaining sample. In the absence of other discriminating neuropsychological functions, the index is merely an artifact of relatively higher verbal abilities in the context of lower performance skills. PMID- 29022477 TI - New adult age-and education-correction norms for the benton visual retention test. AB - Adult age-and education-corrected norms for the Revised Visual Retention Test (BVRT) are presented. Our sample included 1,128 healthy individuals, ranging in age across the adult life span. Stepwise multiple regression analyses demonstrated significant negative associations between age and BVRT performance and significant positive associations between education and BVRT performance. Gender was not associated with performance. Both the regression equations, for predicting expected levels of performance in individuals, and tabular data are presented. PMID- 29022478 TI - Proposed standard of professional practice: Neuropsychological reports display all quantitative data. AB - It is proposed that the standard for the profession be that neuropsychological reports include a display of all quantitative findings. Arguments in favor of the proposal are presented. PMID- 29022479 TI - Utility of a modified version of the wisconsin card sorting test in the detection of dementia of the alzheimer type. AB - Nelson's (1976) modified version of the Wisconsin Card Sorting Test (mWCST) was administered to 23 patients with mild dementia of the Alzheimer type (DAT), 33 moderate DAT patients, 31 severe DAT patients, and 75 demographically matched normal control (NC) subjects. DAT patients attained fewer categories and committed significantly more perseverative errors than NC subjects. None of the DAT patient subgroups differed in the number of perseverative errors committed, but the severe DAT patients attained significantly fewer categories than either the mild or moderate DAT patients. Receiver operating characteristic [ROC] curves were plotted to determine which among several of the measures provided the best sensitivity (i.e., correctly identified patients) and specificity (i.e., correctly identified normal controls). The number of categories attained was found to be the best discriminative measure for the entire sample of DAT patients, whereas the number of perseverative errors provided the best discriminability in mild DAT patients. Findings suggest that Nelson's original modification of the WCST is sensitive in the early detection of DAT. PMID- 29022480 TI - Evaluation of serum autoantibodies against tumor-associated antigens as biomarkers in lung cancer. AB - We evaluated autoantibodies against nine tumor-associated antigens, including p62, p16, Koc, p53, Cyclin B1, Cyclin E, Survivin, HCC1, and RalA as serological markers in lung cancer. Enzyme-linked immunosorbent assay (ELISA) was used to detect autoantibodies in sera from 50 lung cancer patients and 42 normal controls. Then, four tumor-associated antigens of higher values were selected and validated in sera from validation group. Western blot and serum absorption test were used to confirm positive findings from ELISA. When cutoff values were set as mean optical density values plus 3 standard deviation of normal controls, the positive rate of autoantibodies against four tumor-associated antigens (Survivin, Cyclin B1, HCC1, and p53) reached 32%, 20%, 22%, and 18%, with area under the curve values of 0.653, 0.767, 0.622, and 0.623 in sera from 50 lung cancer, respectively (all p < 0.05). Results from the validation group confirmed the results. When lung cancer patients were divided by their clinicopathological characteristics into different subgroups, we have found that serum anti-Cyclin B1 and anti-HCC1 autoantibodies increased in stages 1, 2, and 3 lung cancer; anti Survivin autoantibodies increased in stages 2 and 3 lung cancer; and anti-p53 autoantibody only increased in stage 1 when compared with their corresponding levels in controls (all p < 0.05). Serum anti-Cyclin B1 and anti-Survivin autoantibodies increased with disease histological grade 2 and 3 (both p < 0.05). And higher serum level of anti-p53 autoantibodies is positively associated with tumor size. Parallel utilization of these four anti-tumor-associated antigens (any positive) can increase sensitivity to 65.0% at 100% specificity with area under the curve of 0.908 ( p < 0.001) in lung cancer detection in validation group. Our results suggest that autoantibodies against these four tumor associated antigens have higher values in lung cancer detection, and serum anti Cyclin-B1 has the potential to serve as novel non-invasive biomarkers in early stage lung cancer. PMID- 29022481 TI - Intra and interobserver variability of intrapartum transperineal ultrasound measurements with contraction and pushing. AB - The aim of this study was to evaluate the inter- and intraobserver correlation of the different intrapartum-transperineal-ultrasound-parameters(ITU) (angle of progression (AoP), progression-distance (PD), head-direction (HD), midline-angle (MLA) and head-perineum distance (HPD)) with contraction and pushing. We evaluated 28 nulliparous women at full dilatation under epidural analgesia. We performed a transperineal ultrasound evaluating AoP and PD in the longitudinal plane, and MLA and HPD in the transverse plane. Interclass correlation coefficients (ICC) with 95% CIs and Bland-Altman analysis were used to assess intra- and interobserver measurement's repeatability. The ICC of the ITU for the same observer was adequate for all the parameters (p < .005) AoP 0.98 (95%CI, 0.96-0.99), PD 0.98 (95%CI, 0.97-0.99), MLA 0.99 (95%CI, 0.97-0.99), HPD 0.96 (95%CI, 0.88-0.99). The ICC of the ITU for interobserver was: AoP 0.93 (95%CI, 0.79-0.98), PD 0.92 (95%CI, 0.76-0.97), MLA 0.77 (95%CI, 0.42-0.92), HPD 0.47 (95%CI, -0.12-0.8). The HD had an interobserver correlation of 0.53 (95%CI, 0.1 0.9) (Kappa C). The mean difference of the AoP was 2.42 degrees , of the PD 1 mm and 0.28 degrees MLA (Bland-Altman test). ITU has an adequate intra- and interobserver correlation for its use with contraction and pushing under epidural analgesia. Impact statement What is already known on this subject: The intrapartum transperineal ultrasound parameters can be used with contraction and pushing under epidural analgesia. What the results of this study add to what we know: ITU may be used to evaluate the difficulty of instrumental delivery/to evaluate the difficulty of instrumentation in vaginal operative deliveries and this study concludes that ITU is reproducible during uterine contraction with pushing. What the implications are of these findings for clinical practice and/or further research: Therefore, ITU could be used without difficulty with an adequate intra- and interobserver correlation for the prediction of instrumentation difficulty in operative vaginal deliveries. PMID- 29022482 TI - OCT4B2, a novel alternative spliced variant of OCT4, is significantly upregulated under heat-stress condition and downregulated in differentiated cells. AB - OCT4 is a crucial transcription factor that maintains self-renewal and pluripotency of embryonic stem and embryonic carcinoma cells. The human OCT4 gene can generate at least three variants (OCT4A, OCT4B, and OCTB1) via alternative splicing and alternative promoters. It has been previously reported that OCT4A is the main isoform, retaining stemness state in embryonic stem and embryonic carcinoma cells. There are several reports on the expression of OCT4A, OCT4B, and OCT4B1 in some cancers and tumor cells. The expression of OCT4 in cancer tissues and cell lines appeared to be highly controversial since it was believed that OCT4 is exclusively expressed in embryonic stem/embryonic carcinoma cells. Here, we are reporting the detection of a novel alternatively spliced variant of OCT4, OCT4B2, in several pluripotent and tumor cell lines. Moreover, the expression pattern of OCT4B2 in the course of neural differentiation of NT2 and NCCIT, embryonic carcinoma cells, was similar to that of OCT4A. OCT4B2 was highly expressed in undifferentiated cells; however, its expression was sharply downregulated upon induction of differentiation. Overexpression of OCT4B2 did not affect the distribution of cells in different cell-cycle phases of transfected cells, compared to the mock transfected cells. Interestingly, the expression of OCT4B2 transcript was elevated under the heat-shock induction. In conclusion, we are reporting a new variant of OCT4, which is expressed under different physiological conditions. The finding shed more light on complexity of OCT4 expression and functions. PMID- 29022483 TI - In vitro combined effect of Doxorubicin and sulfonated zinc Phthalocyanine mediated photodynamic therapy on MCF-7 breast cancer cells. AB - Doxorubicin is a broad-spectrum antibiotic and anticancer drug used to treat a variety of human malignancies like breast cancer and leukaemia. Unfortunately, a dose-dependent side effect of this drug is common, representing a major obstacle to its use despite its therapeutic efficacy. Photodynamic therapy is an emerging non-invasive potential adjuvant for conventional cancer treatment. In an attempt to circumvent the dose-limiting effect of doxorubicin, this study aimed to investigate cellular anticancer activity of doxorubicin and sulfonated zinc phthalocyanine-mediated photodynamic therapy on MCF-7 cells alone and in combination. Furthermore, we investigated the cell death pathway resulting from the combination treatment. MCF-7 cells were incubated with 0.5 uM concentration of doxorubicin for 20 h, afterwards, various concentrations of sulfonated zinc phthalocyanine were added and incubated for 4 h. Cells were irradiated using a 681.5 nm diode laser at 4.53 mW/cm2 for 18 min 24 s (5 J/cm2). Cell viability and proliferation were measured using trypan blue assay and homogeneous adenosine triphosphate quantitation assay, respectively, while qualitative changes in cellular morphology were observed under inverted light microscopy. Cellular DNA damage was assessed under fluorescent microscopy and Annexin V/propidium iodide stain was used to investigate the cell death pathway. Findings from this study shown that combined treatment with doxorubicin and photodynamic therapy was more effective in inhibiting the proliferation and growth of MCF-7 cells. Overall, the results indicate that combination of smaller dose of doxorubicin with photodynamic therapy is a promising combined treatment strategy for breast carcinoma. However, this combination warrants further investigation. PMID- 29022485 TI - Prevalence of betaIII-tubulin (TUBB3) expression in human normal tissues and cancers. AB - Microtubules are multifunctional cytoskeletal proteins that are involved in crucial cellular roles including maintenance of cell shape, intracellular transport, meiosis, and mitosis. Class III beta-tubulin (betaIII-tubulin, also known as TUBB3) is a microtubule protein, normally expressed in cells of neuronal origin. Its expression was also reported in various other tumor types, such as several types of lung cancer, ovarian cancer, and esophageal cancer. TUBB3 is of clinical relevance as overexpression has been linked to poor response to microtubule-targeting anti-cancer drugs such as taxanes. To systematically investigate the epidemiology of TUBB3 expression in normal and neoplastic tissues, we used tissue microarrays for analyzing the immunohistochemically detectable expression of TUBB3 in 3911 tissue samples from 100 different tumor categories and 76 different normal tissue types. At least 1 tumor with weak expression could be found in 93 of 100 (93%) different tumor types, and all these 93 entities also had at least 1 tumor with strong positivity. In normal tissues, a particularly strong expression was found in neurons of the brain, endothelium of blood vessels, fibroblasts, spermatogenic cells, stroma cells, endocrine cells, and acidophilic cells of the pituitary gland. In tumors, strong TUBB3 expression was most frequently found in various brain tumors (85%-100%), lung cancer (35%-80%), pancreatic adenocarcinoma (50%), renal cell carcinoma (15% 80%), and malignant melanoma (77%). In summary, these results identify a broad spectrum of cancers that can at least sporadically express TUBB3. Testing of TUBB3 in cancer types eligible for taxane-based therapies could be helpful to identify patients who might best benefit from this treatment. PMID- 29022484 TI - Prognostic implication of simultaneous anemia and lymphopenia during concurrent chemoradiotherapy in cervical squamous cell carcinoma. AB - Radioresistance often leads to poor survival in concurrent chemoradiotherapy treated cervical squamous cell carcinoma, and reliable biomarkers can improve prognosis. We compared the prognostic potential of hemoglobin, absolute neutrophil count, and absolute lymphocyte count with that of squamous cell carcinoma antigen in concurrent chemoradiotherapy-treated squamous cell carcinoma. We analyzed 152 patients with concurrent chemoradiotherapy and high dose-rate intracavitary brachytherapy-treated cervical squamous cell carcinoma. Hemoglobin, absolute neutrophil count, absolute lymphocyte count, and squamous cell carcinoma antigen were quantitated and correlated with survival, using Cox regression, receiver operating characteristic curve analysis, and Kaplan-Meier plots. Both hemoglobin and absolute lymphocyte count in the second week of concurrent chemoradiotherapy (Hb2 and ALC2) and squamous cell carcinoma antigen in the third week of concurrent chemoradiotherapy (mid-squamous cell carcinoma antigen) correlated significantly with disease-specific survival and progression free survival. The ratio of high-dose-rate intracavitary brachytherapy dose to total dose (high-dose-rate intracavitary brachytherapy ratio) correlated significantly with progression-free survival. Patients with both low Hb2 (<=11 g/dL) and ALC2 (<=639 cells/uL) showed a lower 5-year disease-specific survival rate than those with high Hb2 and/or ALC2, regardless of mid-squamous cell carcinoma antigen (mid-squamous cell carcinoma antigen: <=4.7 ng/mL; 5-year disease-specific survival rate: 85.5% vs 94.6%, p = 0.0096, and mid-squamous cell carcinoma antigen: >4.7 ng/mL; 5-year disease-specific survival rate: 43.8% vs 66.7%, p = 0.192). When both Hb2 and ALC2 were low, the low high-dose-rate intracavitary brachytherapy ratio (<=0.43) subgroup displayed significantly lower 5-year disease-specific survival rate compared to the subgroup high high-dose rate intracavitary brachytherapy ratio (>0.43) (62.5% vs 88.2%, p = 0.0067). Patients with both anemia and lymphopenia during concurrent chemoradiotherapy showed poor survival, independent of mid-squamous cell carcinoma antigen, and escalating high-dose-rate intracavitary brachytherapy ratio might improve survival. PMID- 29022486 TI - Association of vitamin D receptor gene polymorphisms with breast cancer risk in an Egyptian population. AB - This study aimed to explore whether genetic polymorphisms in vitamin D receptor are correlated to the breast cancer prevalence in an Egyptian population. Polymerase chain reaction-restriction fragment polymorphism was used to genotype three frequently analyzed vitamin D receptor gene single-nucleotide polymorphisms (rs1544410, rs7975232, and rs731236) and were identified by sequencing analysis. This is the first study that recorded a new single-nucleotide polymorphism in ApaI genotype within an Egyptian population and was registered with the accession number KY859868. The authors found that TC in rs731236, and TG in KY859868 single nucleotide polymorphism showed significant distribution differences with an increased risk of breast cancer ( p < 0.05, odds ratio = 3.71, 95% confidence interval: 1.04-13.28 and p < 0.001, odds ratio = 7.05, 95% confidence interval: 2.02-24, respectively) compared with the wild-type TT genotype carriers in both single-nucleotide polymorphisms. In addition, the distribution frequencies of haplotypes ACT, GTT, and ATT in the patients group were significant, where ATT haplotype was associated with the highest breast cancer risk among all other haplotypes in the patients group ( p = 0.0023, odds ratio = 1.72, 95% confidence interval: 1.24-2.437). In conclusion, vitamin D receptors ApaI and TaqI confer high breast cancer susceptibility, particularly in Egyptians females carrying haplotype ATT. However, further studies focusing on the vitamin D receptor variants and haplotypes effects on vitamin D and vitamin D receptor concentrations, activities, and functionalities are needed. PMID- 29022487 TI - Influence of autocrine growth hormone on NF-kappaB activation leading to epithelial-mesenchymal transition of mammary carcinoma. AB - Progression of breast cancers often depends on hormones among which human growth hormone is prominently involved in breast cancer progression. Earlier studies have reported constitutive activation of nuclear factor-kappaB, a key regulator of growth hormone receptor-mediated signaling pathway in breast carcinoma, but the precise molecular mechanisms are still elusive. In this study, we investigated the effect of human growth hormone on nuclear factor-kappaB activation and epithelial-mesenchymal transition in breast carcinoma. Our results explored that autocrine production of human growth hormone enhances cellular proliferation by the activation of nuclear factor-kappaB (65 kDa) and downregulation of E-cadherin expression. Furthermore, enhanced nuclear factor kappaB expression significantly increases cell proliferation and diminishes apoptosis in MCF-7 cell line. Increased expression of nuclear factor-kappaB significantly enhances mammary carcinoma cell migration and invasion stimulated by autocrine human growth hormone, which results in epithelial-mesenchymal transition of MCF-7 cells. In conclusion, our study revealed the influence of human growth hormone on nuclear factor-kappaB activity and epithelial-mesenchymal transition in mammary carcinoma. Our findings will help to understand molecular role of "growth hormone-nuclear factor-kappaB axis" in mammary carcinogenesis which may facilitate the discovery of suitable pathway inhibitors for disease treatment. PMID- 29022488 TI - Characterization of immortalized human mammary epithelial cell line HMEC 2.6. AB - Primary human mammary epithelial cells have a limited life span which makes it difficult to study them in vitro for most purposes. To overcome this problem, we have developed a cell line that was immortalized using defined genetic elements, and we have characterized this immortalized non-tumorigenic human mammary epithelial cell line to establish it as a potential model system. human mammary epithelial cells were obtained from a healthy individual undergoing reduction mammoplasty at SIU School of Medicine. The cells were transduced with CDK4R24C followed by transduction with human telomerase reverse transcriptase. Post all manipulation, the cells displayed a normal cell cycle phase distribution and were near diploid in nature, which was confirmed by flow cytometry and karyotyping. In vitro studies showed that the cells were anchorage dependent and were non invasive in nature. The cell line expressed basal epithelial markers such as cytokeratin 7, CD10, and p63 and was negative for the expression of estrogen receptor and progesterone receptor. Upon G-band karyotyping, the cell line displayed the presence of a few cytogenic abnormalities, including trisomy 20 and trisomy 7, which are also commonly present in other immortalized mammary cell lines. Furthermore, the benign nature of these cells was confirmed by multiple in vitro and in vivo experiments. Therefore, we think that this cell line could serve as a good model to understand the molecular mechanisms involved in the development and progression of breast cancer and to also assess the effect of novel therapeutics on human mammary epithelial cells. PMID- 29022489 TI - ADAR1 expression is associated with tumour-infiltrating lymphocytes in triple negative breast cancer. AB - Tumours with a high mutation burden exhibit considerable neoantigens and tumour infiltrating lymphocytes. RNA editing by ADAR1 is a source of changes in epitope. However, ADAR1 expression in cancer cells and tumour-infiltrating lymphocyte levels in triple-negative breast cancer have not been well evaluated. We immunohistochemically examined ADAR1 expression in 681 triple-negative breast cancer patients and analysed their clinicopathological characteristics. We also analysed basal-like tumours using The Cancer Genome Atlas data. Among the 681 triple-negative breast cancer patients, 45.8% demonstrated high ADAR1 expression. Tumours with high ADAR1 expression exhibited high tumour-infiltrating lymphocyte levels, considerable CD8 + T lymphocyte infiltration, high histological grade and high expression of interferon-related proteins, including HLA-ABC, MxA and PKR. Among patients with lymph node metastasis, those with high tumour-infiltrating lymphocyte levels and low ADAR1 expression demonstrated the best disease-free survival. The Cancer Genome Atlas data analysis of basal-like tumours revealed significant positive correlation between ADAR1 and CD8B expression and positive association of high ADAR1 expression with immune responses and apoptosis pathways. We detected high ADAR1 expression in half of the triple-negative breast cancer patients. In addition to DNA mutations, RNA editing can be related to neoantigens; hence, we need to explore non-synonymous mutations exclusively found using RNA sequencing data to identify clinically relevant neoantigens. PMID- 29022490 TI - The German Federal Supreme Court also granted a compulsory patent license for the first time in its history. PMID- 29022491 TI - Waste-to-energy: A review of life cycle assessment and its extension methods. AB - This article proposes a comprehensive review of evaluation tools based on life cycle thinking, as applied to waste-to-energy. Habitually, life cycle assessment is adopted to assess environmental burdens associated with waste-to-energy initiatives. Based on this framework, several extension methods have been developed to focus on specific aspects: Exergetic life cycle assessment for reducing resource depletion, life cycle costing for evaluating its economic burden, and social life cycle assessment for recording its social impacts. Additionally, the environment-energy-economy model integrates both life cycle assessment and life cycle costing methods and judges simultaneously these three features for sustainable waste-to-energy conversion. Life cycle assessment is sufficiently developed on waste-to-energy with concrete data inventory and sensitivity analysis, although the data and model uncertainty are unavoidable. Compared with life cycle assessment, only a few evaluations are conducted to waste-to-energy techniques by using extension methods and its methodology and application need to be further developed. Finally, this article succinctly summarises some recommendations for further research. PMID- 29022492 TI - Platelet aggregation impacts thrombin generation assessed by calibrated automated thrombography. AB - A calibrated automated thrombogram (CAT) is performed usually with human platelet free plasma (PFP) but may be more relevant with platelet-rich plasma (PRP). In this case, platelets are not stimulated by subendothelial molecules like collagen. Our aim was to assess the consequence of strong (collagen) or weak (ADP) induction of platelet release and aggregation on thrombin generation. Platelet aggregation in PRP was triggered with 10 ug/mL collagen or 10 uM ADP using a lumi-aggregometer. Thrombin generation curves were monitored by CAT in different conditions: PRP, PRP with activated platelets (actPRP), aggregated PRP (agPRP), aggregated platelets resuspended in autologous PFP (resPRP), PFP and PFP obtained after aggregation (agPFP). We found a 3-fold shortening of the lag time and time to peak and a marked increase in velocity and thrombin peak without changes in endogenous thrombin potential (ETP) in agPRP with both agonists compared with PRP. The same holds true in agPFP but with a marked increase in ETP compared with PFP. Similar changes in the kinetics of thrombin generation were observed with actPRP-collagen and to a lesser extent in resPRP-collagen compared with PRP. By contrast, there were no modifications of the thrombin generation curves in actPRP-ADP. Alpha-2-macroglobin-thrombin complexes were unchanged in the different PRP conditions but were increased in PFP prepared from agPFP compared to control PFP. Platelet aggregation during activation by agonists other than thrombin did not increase thrombin generation but accelerated its kinetics mainly via platelet content release and platelet-derived extracellular vesicules formation. In diseases characterized by altered platelet granule content or release as well as altered platelet activation, a platelet aggregation step prior to CAT analysis may be clinically relevant to improve laboratory estimation of the bleeding/thrombotic balance. PMID- 29022493 TI - Immunonutrition before esophagectomy: Impact on immune surveillance mechanisms. AB - Preoperative oral immunonutrition was demonstrated to improve immune response and to decrease the infection rate in patients with cancer. This study aimed to assess how immunonutrition could influence the immune cell response in the mucosal microenvironment of esophageal adenocarcinoma. Therefore, A prospective cohort of consecutive patients undergoing esophagectomy for esophageal adenocarcinoma was enrolled. A subgroup of them was given preoperative oral immunonutrition with Oral Impact(r) and was compared to those who received no preoperative supplementation. Mucosal samples from healthy esophagus were obtained at esophagectomy. Histology, immunohistochemistry, gene expression analysis, and cytofluorimetry were performed. Markers of activation of antigen presenting cells (CD80, CD86, and HLA-I), innate immunity (TLR4 and MyD88), and cytotoxic lymphocyte infiltration and activation (CD8, CD38, CD69, and CD107) were measured. In all, 50 patients received preoperative Oral Impact(r) and 129 patients received no nutritional support. CD80, CD86, MyD88, and CD69 messenger RNA expression was significantly increased in patients receiving immunonutrition compared to controls. In the subgroup of patients with stages I-II cancer, the rate of epithelial cells expressing CD80 and HLA-ABC was significantly higher in those receiving immunonutrition compared to controls as well as CD8+ CD28+ cell rate. Immunonutrition administration before surgery was significantly associated to increased degranulating CD8 and natural killer cells (CD107+) infiltrating the healthy esophageal mucosa. All the comparisons were adjusted for cancer stage and preoperative therapy. In conclusion, in healthy esophageal mucosa of patients undergoing esophagectomy, a 5-day course of immunonutrition enhances expression of antigen-presenting cells activity and increased CD8+ T cell activation and degranulating activity. Further studies are warranted to understand the clinical implication in terms of cancer recurrence. PMID- 29022494 TI - Colder environments are associated with a greater cancer incidence in the female population of the United States. AB - Cancer incidence and/or mortality among individuals varies with diet, socio culture, ethnicity, race, gender, and age. Similarly, environmental temperature modulates many biological functions. To study the effect of environment temperature on cancer incidence, the US population was selected. Because, county wise cancer incidence rate data of various anatomical site-specific cancers and different races/ethnicities for both males and females are available. Moreover, the differences amongst the aforementioned factors among individuals are much less, as compared to the world population. Statistical analysis showed a negative correlation between the average annual temperature and cancer incidence rate at all anatomical sites and individually for 13 types (out of 16 types) of anatomical site-specific cancer incidence rates (e.g. uterine, bladder, thyroid, breast, esophagus, ovary, melanoma, non-Hodgkin lymphoma, leukemia, brain, pancreas, etc.) for females. Further analysis found a similar inverse trend in all races/ethnicities of the female population but not in all male races/ethnicities or anatomical site-specific cancers. Moreover, the majority of the counties having the top-most cancer incidence rate in females are located above the latitude 36.5 degrees N. These findings indicate that living in a cold county in the United States might have a higher risk of cancer irrespective of cancer type (except cervical and liver) and races/ethnicities for females but not in all such cases for the male population. PMID- 29022495 TI - Genetic polymorphisms of HOTAIR gene are associated with the risk of breast cancer in a sample of southeast Iranian population. AB - There is an increasing body of evidence which highlights the critical functions of long non-coding RNAs in the carcinogenicity mechanism of a variety of cancers. It has been reported that HOX transcript antisense intergenic RNA, a member of long non-coding RNA family, increases breast cancer risk. To date, no data regarding the association between HOX transcript antisense intergenic RNA polymorphisms and the risk of breast cancer development has been reported in Iran. Here, we examine the possible association between HOX transcript antisense intergenic RNA gene polymorphisms and breast cancer in a sample of southeast Iranian female population. The HOX transcript antisense intergenic RNA rs920778, rs12826786, rs4759314, and 1899663 gene polymorphisms were genotyped in 220 cases and 231 controls by polymerase chain reaction-restriction fragment length polymorphism. Our findings indicated that rs920778 polymorphism has significant positive association with breast cancer; rs12826786 and rs1899663 polymorphisms demonstrated significant negative association with breast cancer; and the rs4759314 variant was not associated with breast cancer risk. Haplotype analysis revealed that TGAC, CTAT, and TTAT haplotypes significantly decreased the risk of breast cancer compared with rs920778T/rs1899663G/rs4759314A/rs12826786T haplotype. In conclusion, we investigated only four variants of HOX transcript antisense intergenic RNA gene, and the findings suggest that HOX transcript antisense intergenic RNA rs920778, rs12826786, and rs1899663 polymorphisms may be associated with breast cancer risk in a sample of southeast Iranian population. Further replication studies with other polymorphisms of HOX transcript antisense intergenic RNA gene involving a greater sample size and different ethnicities are necessary to verify our findings. PMID- 29022496 TI - Antitumor and radiosensitizing synergistic effects of apigenin and cryptotanshinone against solid Ehrlich carcinoma in female mice. AB - Considerable attention has been paid to the introduction of novel naturally occurring plant-derived radiosensitizer compounds in order to augment the radiation efficacy and improve the treatment outcome of different tumors. This study was therefore undertaken to evaluate the antitumor, antiangiogeneic, and synergistic radiosensitizing effects of apigenin, a dietary flavonoid, and/or cryptotanshinone, a terpenoid isolated from the roots of Salvia miltiorrhiza, against the growth of solid Ehrlich carcinoma in female mice. Apigenin (50 mg/kg body weight) and/or cryptotanshinone (40 mg/kg body weight) was intraperitoneally (i.p.) injected into non-irradiated or gamma-irradiated (6.5 Gy whole-body gamma irradiation) solid Ehrlich carcinoma-bearing mice for 30 consecutive days. Investigations included molecular targets involved in proliferation, inflammation, angiogenesis, and tumor invasiveness. Treatment with apigenin and/or cryptotanshinone significantly suppressed the growth of solid Ehrlich carcinoma tumors and demonstrated a synergistic radiosensitizing efficacy together with gamma-irradiation. These effects were achieved through downregulating the expression of angiogenic and lymphangiogenic regulators, including signal transducer and activator of transcription 3, vascular endothelial growth factor C, and tumor necrosis factor alpha, suppressing matrix metalloproteinase-2 and -9 activities, which play a key role in tumor invasion and metastasis, and enhancing apoptosis via inducing cleaved caspase-3 and granzyme B levels. Histological findings of solid Ehrlich carcinoma tumors verified the recorded data. In conclusion, a synergistic radiosensitizing efficacy for apigenin and cryptotanshinone was demonstrated against Ehrlich carcinoma in the current in vivo murine model, representing therefore a potential therapeutic strategy for increasing the radiation response of solid tumors. PMID- 29022497 TI - Estrogen-induced disruption of intracellular iron metabolism leads to oxidative stress, membrane damage, and cell cycle arrest in MCF-7 cells. AB - It is well established that several forms of cancer associate with significant iron overload. Recent studies have suggested that estrogen (E2) disrupts intracellular iron homeostasis by reducing hepcidin synthesis and maintaining ferroportin integrity. Here, the ability of E2 to alter intracellular iron status and cell growth potential was investigated in MCF-7 cells treated with increasing concentrations of E2. Treated cells were assessed for intracellular iron status, the expression of key proteins involved in iron metabolism, oxidative stress, cell survival, growth, and apoptosis. E2 treatment resulted in a significant reduction in hepcidin expression and a significant increase in hypoxia-inducible factor 1 alpha, ferroportin, transferrin receptor, and ferritin expression; a transient decrease in labile iron pool; and a significant increase in total intracellular iron content mainly at 20 nM/48 h E2 dose. Treated cells also showed increased total glutathione and oxidized glutathione levels, increased superoxide dismutase activity, and increased hemoxygenase 1 expression. Treatment with E2 at 20 nM for 48 h resulted in a significant reduction in cell growth (0.35/1 migration rate) and decreased cell survival (<80%) as compared with controls. Survivin expression significantly increased at 24 h post treatment with 5, 10, or 20 nM; however, that of gamma-H2AX increased only after survivin levels dropped and only at the 20 nM E2 dose. Minimal upregulation and splitting of caspase 9 was only evident in cells treated with 20 nM E2; no changes in caspase 3 expression were evident. Although Annexin V staining studies showed that E2 treatment did not induce apoptosis, scanning electron microscopy studies showed marked membrane blebbing at 20 nM/48 h of E2. These findings suggest that estrogen treatment disrupts intracellular iron metabolism and precipitates adverse effects concerning cell viability, membrane integrity, and growth potential. PMID- 29022498 TI - ATP-binding cassette exporters: structure and mechanism with a focus on P glycoprotein and MRP1. AB - The majority of proteins that belong to the ATP-binding cassette (ABC) superfamily are transporters that mediate the efflux of substrates from cells. These exporters include multidrug resistance proteins of the ABCB and ABCC subfamilies, such as P-glycoprotein (Pgp) and MRP1, respectively. These proteins are not only involved in the resistance of cancer to cytotoxic agents, but also in the protection from endo and xenobiotics, and the determination of drug pharmacokinetics, as well as in the pathophysiology of a variety of disorders. Here, we present a review of the information available on ABC exporters, with a focus on Pgp, MRP1 and related proteins. We describe tissue localization and function of these transporters in health and disease, and discuss the mechanisms of substrate transport. We also correlate recent structural information with the function of the exporters, and discuss details of their molecular mechanism with a focus on the nucleotide-binding domains. PMID- 29022499 TI - The Medicinal Chemistry of Therapeutic Peptides: Recent Developments in Synthesis and Design Optimizations. AB - Peptide therapeutics have made tremendous progress in the past decade. Many of the inherent weaknesses of peptides which hampered their development as therapeutics are now more or less effectively tackled with recent scientific and technological advancements in integrated drug discovery settings. These include recent developments in synthetic organic chemistry, high-throughput recombinant production strategies, high-resolution analytical methods, high-throughput screening options, ingenious drug delivery strategies and novel formulation preparations. Here, we will briefly describe the key methodologies and strategies used in the therapeutic peptide development processes with select examples of the most recent developments in the field. The aim of this review is to highlight the viable options a medicinal chemist may consider in order to improve a specific pharmacological property of interest in a peptide lead entity and thereby rationally assess the therapeutic potential this class of molecules possesses while they are traditionally (and incorrectly) considered 'undruggable'. PMID- 29022500 TI - Biomarkers of Atrial Fibrillation in Metabolic Syndrome. AB - Whether the increased atrial fibrillation (AF) risk in metabolic syndrome (MetS) patients is due to the syndrome as a whole or simply the sum of the risks of its individual component parts is still obscure. These two clinical entities share many pathophysiological links and thus distinction between a casual observation and a significant association is difficult. Biomarkers associated with pathogenesis of AF in the context of MetS have the ability to refine future risk prediction. In the present review we identify circulating substances that could be regarded as potential biomarkers for prediction of incident AF, or of cardiovascular events in the setting of AF in patients with MetS. Cardiac myocyte injury and stress markers (troponin and natriuretic peptides), markers of renal function (glomeral filtration rate, cystatin-C), and inflammation markers/mediators (interleukin-6, CRP) are promising biomarkers of patients with AF and MetS. PMID- 29022501 TI - Nanotechnology in Personalized Medicine: A Promising Tool for Alzheimer's Disease Treatment. AB - Alzheimer's disease (AD) is a public health priority all over the world. The difficulty of fighting the disease consists mostly in the complexity of symptoms and causes, in the still poor knowledge of its mechanisms and in the existence of a latent, asymptomatic, preclinical stage. Although many drugs are continuously screened in clinical studies for the treatment of Alzheimer's disease, the unexpected lack of patient response and sometimes the important adverse effects make it a potential field of application for personalized medicine. The aim of personalized medicine is the development of more patient-precise treatments based mostly on the knowledge of individual genetics as well as of disease progress, and of pharmacokinetics and metabolic response to available drugs. The optimization of new and more sensitive detection techniques is an important tool for obtaining the poll of data needed for prediction and understanding of patient responses. The aim of this perspective review is to propose nanotechnology as a valuable tool for the application of personalized medicine to AD. Research in bionanosensors is already providing examples with high sensitivity for core and new biomarkers for AD. In therapy the functionalization of nanoparticle surface can add specificity for biological recognition or for improving the bioavailability. This would allow the administration of lower doses with less adverse effects due to the local targeting. Taking into account the promising characteristics of nanoparticles as excellent candidate tools for precision medicine development, the establishment of better standard methods for safety assessment and production scale up would be desirable for the nanomaterial fruitful employment. PMID- 29022502 TI - Pathophysiological Role of Mitochondrial Potassium Channels and their Modulation by Drugs. AB - BACKGROUND: Mitochondria play a central role in ATP-generating processes. Indeed, in mammalian tissues, up to 90% of ATP is generated by mitochondria through the process of oxidative phosphorylation; furthermore, mitochondria are involved in multiple signal transduction pathways. A rapidly expanding body of literature has confirmed that mitochondria play a pivotal role in apoptosis, cardio- and neuro protection, and various neurodegenerative disorders, ranging from Parkinson's to Alzheimer's disease. Mitochondria are also the targets of multiple drugs, some of these are specifically designed to affect mitochondrial function, while others have primary targets in other cellular locations but may interact with mitochondria because of the presence of numerous targets on this organelle. In this regard, mitochondrial potassium (mitoK) channels play a critical role in mitochondrial function and, consequently, in the metabolism of the whole cell. OBJECTIVE: To describe mitoK channels from a structural point of view and investigate their pathophysiological roles, focusing on possible specific modulators that might be useful as pharmacological tools in the treatment of various pathologies characterized by mitoK involvement. RESULTS: mitoK channels play a decisive role in several pathologies, including cardiovascular diseases, particularly in myocardial infarction and neurodegenerative diseases, and they are emerging as promising oncological targets. CONCLUSIONS: mitoK channels represent novel targets, and mitoK channel modulators represent an exciting tool for pharmacological intervention against such pathological conditions. PMID- 29022503 TI - The Renal Outer Medullary Potassium Channel (ROMK): An Intriguing Pharmacological Target for an Innovative Class of Diuretic Drugs. AB - In the last four decades, the several classes of diuretics, currently available for clinical use, have been the first line option for the therapy of widespread cardiovascular and non-cardiovascular diseases. Diuretic drugs generally exhibit an overall favourable risk/benefit balance. However, they are not devoid of side effects. In particular, all the classes of diuretics cause alteration of potassium homeostasis. In recent years, understanding of the physiological role of the renal outer medullary potassium (ROMK) channels, has shown an intriguing pharmacological target for developing an innovative class of diuretic agents: the ROMK inhibitors. This novel class is expected to promote diuretic activity comparable to (or even higher than) that provided by the most effective drugs used in clinics (such as furosemide), with limited effects on potassium homeostasis. In this review, the physio-pharmacological roles of ROMK channels in the renal function are reported, along with the most representative molecules which have been currently developed as ROMK inhibitors. PMID- 29022504 TI - Endothelial and circulating progenitor cells in hematological diseases and allogeneic hematopoietic stem cell transplantation. AB - BACKGROUND: Circulating endothelial cells (CECs), originated form endothelial progenitors (EPCs) are mature cells which are not associated with vessel walls, and that are detached from the endothelium. Normally, they are present in insignificant amounts in the peripheral blood of healthy individuals. On the other hand, elevated CECs and EPCs levels have been reported in the peripheral blood of patients with different types of cancers and some other diseases. Consequently, CECs and EPCs represent a potential biomarker in several clinical conditions involving endothelial turnover and remodeling, such as hematological diseases. These cells may be involved in disease progression and the neoplastic angiogenesis process. Moreover, CESs and EPCs are probably involved in endothelial damage that is a marker of several complications following allogeneic hematopoietic stem cell transplantation. This review aims to provide an overview on the characterization of CECs and EPCs, describe isolation methods and to identify the potential role of these cells in hematological diseases and hematopoietic stem cell transplantation. PMID- 29022505 TI - Pharmacological Targeting of Neuronal Kv7.2/3 Channels: A Focus on Chemotypes and Receptor Sites. AB - BACKGROUND: The Kv7 (KCNQ) subfamily of voltage-gated potassium channels consists of 5 members (Kv7.1-5) each showing characteristic tissue distribution and physiological roles. Given their functional heterogeneity, Kv7 channels represent important pharmacological targets for the development of new drugs for neuronal, cardiovascular and metabolic diseases. OBJECTIVE: In the present manuscript, we focus on describing the pharmacological relevance and potential therapeutic applications of drugs acting on neuronally-expressed Kv7.2/3 channels, placing particular emphasis on the different chemotypes, and highlighting their pharmacodynamic and, whenever possible, pharmacokinetic peculiarities. METHODS: The present work is based on an in-depth search of the currently available scientific literature, and on our own experience and knowledge in the field of neuronal Kv7 channel pharmacology. Space limitations impeded to describe the full pharmacological potential of Kv7 channels; thus, we have chosen to focus on neuronal channels composed of Kv7.2 and Kv7.3 subunits, and to mainly concentrate on their involvement in epilepsy. RESULTS: An astonishing heterogeneity in the molecular scaffolds exploitable to develop Kv7.2/3 modulators is evident, with important structural/functional peculiarities of distinct compound classes. CONCLUSION: In the present work we have attempted to show the current status and growing potential of the Kv7 pharmacology field. We anticipate a bright future for the field, and express our hopes that the efforts herein reviewed will result in an improved treatment of hyperexcitability (or any other) diseases. PMID- 29022506 TI - Autologous cell therapy for vascular regeneration: the role of proangiogenic cells. AB - Autologous cell therapy represents a novel treatment option for vascular regeneration in different disease conditions. Both experimental and clinical studies indicate a therapeutic potential for different proangiogenic cells (PCs), including endothelial progenitor cells (EPCs) in the treatment of peripheral artery disease. A significant improvement of ischemic symptoms has been reported in different trials evaluating PCs for the treatment of critical limb ischemia. However, contrasting results from different meta-analyses question the efficacy of PC-based approaches on long-term outcomes, including amputation and survival. Preclinical studies and clinical trials give support to the safety and feasibility of PC therapy in the treatment of ischemic heart disease and heart failure, while evidence indicating a benefit on the reduction of cardiovascular (CV) events is still uncertain. Clinical studies investigating cell therapy in stroke demonstrated controversial results. Despite accumulating experimental results support a therapeutic role for PCs in diabetic retinopathy, data from randomized clinical trials are lacking. Whether PC therapy may limit vascular damage and premature atherosclerosis and reduce CV risk in inflammatory rheumatic diseases needs to be investigated. Despite a number of potential clinical applications of PCs are emerging, there is evidence that CV risk factors and chronic inflammation may induce PC dysfunction, rising possible limitations for the efficacy of autologous PC therapy. Thus, novel strategies aimed at improving PC viability and angiogenic function are warranted in order to improve the efficacy of cell therapy applications. PMID- 29022507 TI - Editorial: Relationship Between Cancers and Diseases with Insulin Resistance. PMID- 29022508 TI - Editorial: Vascular Protection of Herbal Medicine: Roles and Mechanisms. PMID- 29022509 TI - 1,N6-ethenoadenine and other Fluorescent Nucleobase Analogues as Substrates for Purine-Nucleoside Phosphorylases: Spectroscopic and Kinetic Studies. AB - BACKGROUND: Purine-nucleoside phosphorylase (PNP) is known as a tool for the synthesis of various nucleosides and nucleoside analogues. Mechanism, properties, molecular diversity and inhibitors of PNP, particularly these of pharmacological significance, are briefly characterized. METHODS: UV and fluorescence spectroscopy was used for kinetic experiments, and HPLC chromatography for product analyses. RESULTS: Applications of various forms of PNP to synthesis of selected fluorescent nucleosides, particularly ribosides of 1,N6-ethenoadenine and various 8-azapurines (triazolo[4,5-d]pyrimidines) are reviewed. Different specificity of various PNP forms is described towards nucleobase and analogue substrates as well as variable ribosylation sites observed in some reactions, with a possibility to further modify these features via the site-directed mutagenesis. CONCLUSION: Present and future applications of the fluorescent or fluorogenic ribosides are discussed, with particular emphasis on biochemical and clinical analyses with improved sensitivity. PMID- 29022510 TI - Whole cell biocatalysts for the preparation of nucleosides and their derivatives. AB - : Nucleosides constitute an extensive group of natural and chemically modified compounds that display a wide range of structures and activities. Different biocatalysts have been developed for their preparation, but the choice of commercially available enzymes is limited. Therefore, the search of new biocatalysts is particularly attractive. In this sense, microorganisms are a vast source of enzymatic diversity that can be directly used as a whole cell biocatalysts providing a potential cheaper and suitable route for industrial applications. METHODS: This work makes particular emphasis on the following methods: the biocatalyzed whole cell synthesis of nucleosides mediated by phosphorylases, key biocatalyzed steps involved in other chemoenzymatic routes to prepare nucleoside analogues and the transformation of nucleosides in derivatives with particular properties. RESULTS: The literature covered in this work confirms that biocatalytic procedures that make use of whole cell systems can be successfully applied to obtain a wide variety of nucleoside analogues and their derivatives, providing alternative and complementary routes to traditional chemistry. The direct use of microbial whole cells as biocatalysts affords competitive results since it avoids the cumbersome procedures involved in enzyme isolation and facilitates multienzymatic processes. These biocatalysts also maintain the enzymes in their natural environment, protecting their activities from reaction conditions. CONCLUSION: Although the information presented herein shows that these methodologies have reached a high degree of development, it is expected that future contributions of protein engineering and nucleoside metabolism knowledge, among other disciplines, will expand the already wide range of applications in nucleoside chemistry of whole cell biocatalysis. PMID- 29022511 TI - Metabolism of Nucleosides and Nucleotides Prodrugs. AB - BACKGROUND: Modified nucleoside and nucleotide analogs are now the cornerstone of antiviral and anticancer chemotherapies. However, these compounds are not active on their own and need, after entering the cell, to be metabolized to their active 5'-triphosphate form. METHOD: Limitations of these metabolic processes led to development of nucleoside/nucleotide prodrugs in which nucleosides are masked with different groups that can be intracellularly cleaved either chemically or enzymatically. RESULTS: Several prodrug approaches have been successfully developed in order to increase the efficacy, bioavailability, penetration in target organ, and selectivity of nucleoside/nucleotide analogs. CONCLUSION: The concept of nucleoside/nucleotide prodrug is now a well-established approach that led to the approval of numerous drugs for the treatment of HIV, HBV, HCV, HSV and cancer. PMID- 29022512 TI - Schistosoma mansoni purine and pyrimidine biosynthesis: structures and kinetic experiments in the search for the best therapeutic target. AB - BACKGROUND: Schistosoma mansoni is the etiological agent of schistosomiasis, a debilitating treatment neglected tropical disease that affects approximately 218 million people worldwide. Despite its importance, the treatment of schistosomiasis relies on a single drug, praziquantel. Some reports on the resistance of S. mansoni to this drug have stimulated efforts to develop new drugs to treat this disease. S. mansoni possesses all the same pyrimidine pathways (de novo, salvage and thymidylate cycles) as those of its host. The opposite scenario is true for purine metabolism, in which only the salvage pathway is present. These pathways have previously been proposed as potential drug targets. RESULTS: Using modern molecular biology techniques, large-scale study of these pathways has become possible; 24 genes have been studied, and several protein structures and kinetic parameters have been determined. Unique characteristics of schistosomal enzymes have been obtained, which show that this organism possesses two isoforms of uridine phosphorylase (UP), which share 92% of identity. However, only one isoform has a canonical function, whereas the second isoform is expressed through all life stages and does not have a known function. In addition, the methylthioadenosine phosphorylase (MTAP) is one of the enzymes responsible for the previously described adenosine phosphorylase activity, thus representing one main difference between S. mansoni and its host. The study of adenine phosphoribosyltransferase has revealed possible differential expression of the APRT gene in females. This result is consistent with those obtained for the experimental treatment of schistosomiasis in monkeys with the adenosine analog tubercidin, which eliminates the disease mainly in females. CONCLUSION: These important conclusions may aid in the development of new alternative drugs to treat schistosomiasis. PMID- 29022513 TI - Discrepancies in Animal Models of Preterm Birth. AB - BACKGROUND: Preterm birth (PTB) is a multifactorial syndrome occurring before the 37th week of fullterm pregnancy [1]. Babies delivered preterm experience short term and long-term complications affecting multiple organ systems, and serious maternal complications include hemorrhage and infection. Each year, an estimated 15 million babies are born preterm, and complications from prematurity are the leading cause of death among children up to 5 years of age [2]. With another increase in PTB rates over the last several years, the United States continues to have the highest incidence of any industrialized country [3]. Makena (a progesterone analog) is the only FDA approved medication available in the United States to reduce the risk of PTB. Its use is only indicated in women who are currently pregnant with one fetus and have unexpectedly delivered a baby preterm in the past [4]. Furthermore, Makena is very expensive and not used in mothers with multiple gestations or other risk factors, such as infection, preeclampsia and obesity. Consequently, physicians commonly prescribe supportive therapies, such as magnesium sulfate, to slow uterine contractions, and glucocorticoids to stimulate fetal lung maturity. METHODS: In this article, we review the full spectrum of in vivo models that investigators have developed to study PTB, including rodent, ruminant and non-human primate models. We evaluate the discrepancies among various models, the shortcomings of individual models and how well these models reflect various causes of PTB in humans. RESULTS: Recent studies reveal that infection is unessential in reproductive disorders linked to inflammation, and that infection and inflammation are two of many triggers of PTB [1, 5-6]. Despite such findings, many investigators continue recycling infectious (using bacterium) and non-infectious-based models (using products of bacteria or individual cytokines). These models are inconsistent across laboratories, and produce variable degrees of maternal morbidity (inconsistent with human PTB). CONCLUSION: The aim of this review is to encourage the reproductive science community to rethink the design of non-infectious PTB animal studies. While these models have strengthened our understanding of the mediators and triggers of PTB, we must develop improved models that are more consistent with the various factors associated with human PTB (Fig. 1). If we continue viewing PTB through one lens or dimension, Makena will remain the only FDA approved medication. In vivo PTB research requires multi-model, multifactorial approaches that account for the complexity of living animals within and between species. PMID- 29022514 TI - Editorial: Astrocyte-Targeted Therapeutic Strategies for Neurological Disorders. PMID- 29022515 TI - Immunopharmacological Activity of Betulin in Inflammation-associated Carcinogenesis. AB - This review highlights the multiple properties of the birch bark-derived pentacyclic triterpene betulin with special focus on its pharmacological activity in cancer and inflammation. While less well characterized compared to its hydrophilic derivative, betulinic acid, it exhibits potent anticancer activity described in many publications. Indeed, underinvestigated are its immunomodulatory functions in inflammatory diseases that appeared to enhance innate immune cell activities in an adjuvant-like fashion towards an interleukin 12 driven antitumor immunity. Herein, we like to emphasize the simultaneous and dual function of betulin on the basis of recent investigations of the tumor microenvironment and enlighten the potential use of betulin in the control of inflammation-associated carcinogenesis. PMID- 29022516 TI - Folk-Economic Beliefs: An Evolutionary Cognitive Model. AB - The domain of "folk-economics" consists in explicit beliefs about the economy held by laypeople, untrained in economics, about such topics as e.g., the causes of the wealth of nations, the benefits or drawbacks of markets and international trade, the effects of regulation, the origins of inequality, the connection between work and wages, the economic consequences of immigration, or the possible causes of unemployment. These beliefs are crucial in forming people's political beliefs, and in shaping their reception of different policies. Yet, they often conflict with elementary principles of economic theory and are often described as the consequences of ignorance, irrationality or specific biases. As we will argue, these past perspectives fail to predict the particular contents of popular folk-economic beliefs and, as a result, there is no systematic study of the cognitive factors involved in their emergence and cultural success. Here we propose that the cultural success of particular beliefs about the economy is predictable if we consider the influence of specialized, largely automatic inference systems that evolved as adaptations to ancestral human small-scale sociality. These systems, for which there is independent evidence, include free rider detection, fairness-based partner-choice, ownership intuitions, coalitional psychology, and more. Information about modern mass-market conditions activates these specific inference-systems, resulting in particular intuitions, e.g., that impersonal transactions are dangerous or that international trade is a zero-sum game. These intuitions in turn make specific policy proposals more likely than others to become intuitively compelling, and as a consequence exert a crucial influence on political choices. PMID- 29022518 TI - Research on a 'drug-centred' approach to psychiatric drug treatment: assessing the impact of mental and behavioural alterations produced by psychiatric drugs. AB - AIMS: This article explores an alternative understanding of how psychiatric drugs work that is referred to as the drug-centred model of drug action. Unlike the current disease-centred model, which suggests that psychiatric drugs work by correcting an underlying brain abnormality, the drug-centred model emphasises how psychiatric drugs affect mental states and behaviour by modifying normal brain processes. The alterations produced may impact on the emotional and behavioural problems that constitute the symptoms of mental disorders. METHODS: Arguments are put forward that justify the consideration of the drug-centred model. The research necessary to support the prescription of drugs according to such a model is explored. RESULTS: Evidence from neurochemistry and comparative drug trials do not confirm the disease-centred model of drug action. Since psychiatric drugs are recognised to have mind- and behaviour-altering properties, the drug-centred model constitutes a plausible alternative. The drug-centred model suggests that research is needed to identify all the alterations produced by various sorts of drugs, both acute and long term, and how these might interact with the symptoms and problems associated with different mental disorders. This requires detailed animal and volunteer studies and data from patients prescribed drug treatment long term, along with placebo-controlled and comparative trials that look at the overall impact of drug-induced alterations on well-being and functioning as well as symptoms. Research is also needed on alternative ways of fulfilling the function of drug treatment. The moral aspect of using drugs to modify behaviour rather than treat disease needs honest and transparent consideration. CONCLUSIONS: It is hoped this discussion will encourage the psychiatric and pharmaceutical research community to provide more of the information that is required to use psychiatric drugs safely and effectively. PMID- 29022517 TI - Do contamination of and exposure to chicken meat and water drive the temporal dynamics of Campylobacter cases? AB - Campylobacteriosis, the most frequent bacterial enteric disease, shows a clear yet unexplained seasonality. The study purpose was to explore the influence of seasonal fluctuation in the contamination of and in the behaviour exposures to two important sources of Campylobacter on the seasonality of campylobacteriosis. Time series analyses were applied to data collected through an integrated surveillance system in Canada in 2005-2010. Data included sporadic, domestically acquired cases of Campylobacter jejuni infection, contamination of retail chicken meat and of surface water by C. jejuni, and exposure to each source through barbequing and swimming in natural waters. Seasonal patterns were evident for all variables with a peak in summer for human cases and for both exposures, in fall for chicken meat contamination, and in late fall for water contamination. Time series analyses showed that the observed campylobacteriosis summer peak could only be significantly linked to behaviour exposures rather than sources contamination (swimming rather than water contamination and barbequing rather than chicken meat contamination). The results indicate that the observed summer increase in human cases may be more the result of amplification through more frequent risky exposures rather than the result of an increase of the Campylobacter source contamination. PMID- 29022519 TI - Effects of methionine hydroxy analogue supplementation on the expression of antioxidant-related genes of acute heat stress-exposed broilers. AB - We evaluated the effects of heat stress (HS) and methionine supplementation on biological markers of stress and expression of the genes for superoxide dismutase (SOD), thioredoxin (TRx), thioredoxin reductase 1 (TRxR1) and methionine sulfoxide reductase A (MsrA) in broilers aged 1 to 21 or 22 to 42 days. The broilers were divided into two treatments, one with the recommended level of methionine supplementation (MS, supplementation of dl-2-hydroxy-4 methylthiobutanoic acid (dl-HMTBA)) and one without methionine supplementation (MD). The animals were maintained at a temperature of thermal comfort or one of HS (38 degrees C for 24 h). Mortality was only observed in 42-day-old broilers exposed to HS and fed the MD diet, and the rate was 5%. Starter period: we observed an interaction effect between diet and temperature on the gene expression of TRxR1 and MsrA, and expression of these genes was higher in the HS animals that received the MS diet than that in birds with the MD diet. Grower period: the expression of SOD, TRxR1 and MsrA genes, activities of aspartate aminotransferase (AST) and creatine kinase (CK) and content of creatinine were influenced by both study variables. In the HS animals, the expression of these genes, AST activity and creatinine content increased and CK activity decreased. In the animals on the MD diet, the expression of these genes and AST and creatinine values were higher and the CK activity was lower than those for the birds on the MS diet. Our results indicated that under HS conditions, the supplementation with dl-HMTBA could mitigate major damage caused by stress through the action on some genes related to TRx complex activity. PMID- 29022520 TI - Prevalence of suicidal behaviour and associated factors in a large sample of Chinese adolescents. AB - AIMS: Suicidal behaviour is prevalent among adolescents and is a significant predictor of future suicide attempts (SAs) and suicide death. Data on the prevalence and epidemiological characteristics of suicidal behaviour in Chinese adolescents are limited. This study was aimed to examine the prevalence, characteristics and risk factors of suicidal behaviour, including suicidal thought (ST), suicide plan (SP) and SA, in a large sample of Chinese adolescents. METHOD: This report represents the first wave data of an ongoing longitudinal study, Shandong Adolescent Behavior and Health Cohort. Participants included 11 831 adolescent students from three counties of Shandong, China. The mean age of participants was 15.0 (s.d. = 1.5) and 51% were boys. In November-December 2015, participants completed a structured adolescent health questionnaire, including ST, SP and SA, characteristics of most recent SA, demographics, substance use, hopelessness, impulsivity and internalising and externalising behavioural problems. RESULTS: The lifetime and last-year prevalence rates were 17.6 and 10.7% for ST in males, 23.5 and 14.7% for ST in females, 8.9 and 2.9% for SP in males, 10.7 and 3.8% for SP in females, 3.4 and 1.3% for SA in males, and 4.6 and 1.8% for SA in females, respectively. The mean age of first SA was 12-13 years. Stabbing/cutting was the most common method to attempt suicide. Approximately 24% of male attempters and 16% of female attempters were medically treated. More than 70% of attempters had no preparatory action. Female gender, smoking, drinking, internalising and externalising problems, hopelessness, suicidal history of friends and acquaintances, poor family economic status and poor parental relationship were all significantly associated with increased risk of suicidal behaviour. CONCLUSIONS: Suicidal behaviour in Chinese adolescents is prevalent but less than that previously reported in Western peers. While females are more likely to attempt suicide, males are more likely to use lethal methods. Multiple child and family factors are associated with suicidal behaviour. These findings highlight the importance of early screening and intervention of suicidal behaviour in Chinese adolescents. PMID- 29022521 TI - A stochastic bio-economic pig farm model to assess the impact of innovations on farm performance. AB - Recently developed innovations may improve the economic and environmental sustainability of pig production systems. Generic models are needed to assess the impact of innovations on farm performance. Here we developed a stochastic bio economic farm model for a typical farrow-to-finish pig farm to assess the impact of innovations on private and social profits. The model accounts for emissions of greenhouse gases from feed production and manure by using the shadow price of CO2, and for stochasticity of economic and biological parameters. The model was applied to assess the impact of using locally produced alternative feed sources (i.e. co-products) in the diets of finishing pigs on private and social profits of a typical Brazilian farrow-to-finish pig farm. Three cases were defined: a reference case (with a standard corn-soybean meal-based finishing diet), a macauba case (with a macauba kernel cake-based finishing diet) and a co-products case (with a co-products-based finishing diet). Pigs were assumed to be fed to equal net energy intakes in the three cases. Social profits are 34% to 38% lower than private profits in the three cases. Private and social profits are about 11% and 14% higher for the macauba case than the reference case, whereas they are 3% and 7% lower for the co-products case, respectively. Environmental costs are higher under the alternative cases than the reference case suggesting that other benefits (e.g. costs and land use) should be considered to utilize co-products. The CV of farm profits is between 75% and 87% in the three cases following from the volatility of prices over time and variations in biological parameters between fattening pigs. PMID- 29022522 TI - An approach to anaemia diagnosis - concerns in primary care. PMID- 29022523 TI - 'Best buys' for surgery in South Africa. AB - Improving access to basic surgical interventions has great potential to improve the length and quality of life of many people in low- and middle-income countries (LMICs). However, research has shown that current access to surgical interventions is limited, and initiatives such as the Lancet Commission on Global Surgery 2030 advocate for improved access to basic surgical interventions for all. As the needs, health system context and available budgets in each country will be different, a critical component of effective local scale-up of surgical interventions will be to use tools and processes of health technology assessment (HTA). HTA has traditionally been used in high-income countries to make decisions about which medicines and devices should be available in a health system, but its central concepts, such as assessing clinical effectiveness, cost-effectiveness and feasibility, appraising all available evidence, and incorporating wider health systems objectives in decision-making, can be applied to decisons about how LMICs can best utilise basic surgical interventions from within available resources - in essence, to focus spending on the 'best buys'. As South Africa (SA) moves towards National Health Insurance (NHI), HTA functions will be strengthened. There is potential for SA to lead the practice of application of HTA to decisions about how basic surgical interventions are chosen and implemented, contributing to the success and sustainability of NHI in SA and the health of people in LMICs worldwide. PMID- 29022524 TI - Exploring the barriers to implementing National Health Insurance in South Africa: The people's perspective. AB - This article explores the challenges of implementing the proposed National Health Insurance for South Africa (SA), based on the six building blocks of the World Health Organization Health System Framework. In the context of the current SA health system, leadership, finance, workforce, technologies, information and service delivery are explored from the perspective of the people at ground level. Through considerations such as these, the universal health coverage goals of health equity, efficiency, responsiveness and financial risk protection, might be realised. PMID- 29022525 TI - Evaluating 5 years' NIMART mentoring in South Africa's HIV treatment programme: Successes, challenges and future needs. AB - Task shifting has enabled South Africa (SA) to rapidly expand its HIV treatment programme. This has been achieved by training and mentoring primary-care nurses in nurse initiation and management of antiretroviral therapy (NIMART). Five years into its clinical mentoring programme, the Foundation for Professional Development conducted an evaluation that identified improved knowledge, attitudes and confidence perceived by nurses who received NIMART mentoring. Low completion rates for the Department of Health (DoH) NIMART training process were identified and therefore targeted mentoring was introduced; this increased the percentage of primary nurses eligible for DoH certificates of clinical competence in NIMART from 12%, adding a further 30%. There remain a large number of primary nurses who require mentoring in order to complete the NIMART process. For those who have completed the process, there remains a need for ongoing mentoring as SA's HIV programme evolves, complex cases emerge and primary care undergoes change. PMID- 29022526 TI - Cytomegalovirus retinitis and HIV: Case reviews from KwaZulu-Natal Province, South Africa. AB - BACKGROUND: Retinal cytomegalovirus (CMV) infection is a common opportunistic infection and remains a significant contributor to visual loss in patients with AIDS. We highlight the poor outcomes of CMV retinitis in three HIV-infected patients who were initiated on antiretroviral therapy (ART). We conducted a retrospective chart review of advanced stage HIV-infected patients with known CMV retinitis.Case 1. A 37-year-old man, with a CD4+ cell count of 35 cells/uL, presented for ART initiation with a 5-month history of visual loss in his left eye. Fundoscopy showed left eye CMV retinitis and right eye HIV retinopathy. ART and 5 months of weekly intravitreal ganciclovir injections (left eye) were commenced. Six-month outcomes included virological suppression, and visual acuity in the right eye of 6/6 and in the left eye of 3/60.Case 2. A 31-year-old woman, with a CD4+ cell count of 39 cells/uL and on tuberculosis therapy, presented for ART initiation. She presented with a 2-month history of decreased visual acuity. Fundoscopy showed bilateral CMV retinitis, which was more pronounced in the left eye. ART and 8 months of intravitreal ganciclovir injections were commenced. Six month outcomes included virological suppression and visual acuity in the right eye of 6/9, and in the left eye of 6/24.Case 3. A 29-year-old woman, with a CD4+ cell count of 24 cells/uL, who was on tuberculosis therapy and ART, complained of blurred vision at her 2-month ART follow-up visit. Fundoscopy showed bilateral retinal detachment secondary to CMV retinitis. While silicone oil tamponade and subsequent retinectomy successfully repaired the right eye, extensive damage rendered the left eye irreparable. Six-month outcomes included virological suppression, with 6/120 visual acuity in the right eye and complete blindness in the left eye. CONCLUSION: CMV retinitis causes debilitating, permanent sequelae, which is preventable by ART initiation at higher CD4+ cell counts. Despite achieving virological suppression, vision could not be completely restored in these patients, irrespective of the severity of CMV retinitis. PMID- 29022527 TI - Protection of the human research participant: A structured review. AB - The history of health research, and concerns about the protection of human participants, dates back as far as the 1800s. The regulation, legislation and ethics-review requirements regarding the protection of the human research participants cause lively debates among researchers and scientists. The objective of this article is to share the findings of a structured review that was aimed at investigating the impact of and challenges with regard to the legislation, governance and research regulations aimed at protecting human research participants. The thematic analysis of the findings revealed dissatisfaction with diverse operational practices; different legislation and regulation practices; and institutional governance. Simplified and universally agreed-upon regulations and operational practices are needed, as is a common understanding of all concepts relating to ethical research conduct. PMID- 29022528 TI - Diagnostic accuracy of GeneXpert MTB/RIF in musculoskeletal tuberculosis: High sensitivity in tissue samples of HIV-infected and HIV-uninfected patients. AB - BACKGROUND: GeneXpert MTB/RIF is useful for the diagnosis of pulmonary TB in adults, but there is limited evidence on its usefulness in extrapulmonary TB. OBJECTIVES: To investigate the diagnostic accuracy of GeneXpert MTB/RIF in HIV infected and HIV-uninfected patients with suspected musculoskeletal TB. METHODS: A prospective study of patients with suspected musculoskeletal (bone and joint) TB was undertaken. The diagnostic accuracy of GeneXpert MTB/RIF was compared with the reference standards of culture and histopathology. RESULTS: A total of 206 biopsies from 201 patients (23% HIV-infected) were evaluated. The sensitivity and specificity of GeneXpert MTB/RIF was 92.3% (84/91) and 99.1% (114/115), respectively. GeneXpert MTB/RIF detected 8.8% more cases than culture (84/91 (92.3%) v. 76/91 (83.5%), respectively; p=0.069). GeneXpert MTB/RIF also detected all 4 multidrug-resistant TB cases and an additional 2 rifampicin-resistant cases in culture-negative samples. The sensitivity of GeneXpert MTB/RIF in HIV-infected patients was 96.9% (31/32) v. 89.6% (43/48) in HIV-uninfected patients (p=0.225). CONCLUSION: GeneXpert MTB/RIF is an accurate test for the detection of TB in tissue samples of HIV-infected and HIV-uninfected patients with suspected musculoskeletal TB. A positive GeneXpert MTB/RIF result should be regarded as microbiological confirmation of TB. PMID- 29022529 TI - Deep-vein thrombosis in the era of high HIV and tuberculosis prevalence: A prospective review of its diagnosis and treatment in a quaternary centre. AB - BACKGROUND: Venous thromboembolic disease (VTE) is a leading cause of morbidity and mortality worldwide. HIV and tuberculosis (TB) infections have an aetiological association with VTE. Implementation of national HIV and TB programmes in South Africa (SA) has changed the burden of these two conditions, with resultant effects on VTE prevalence. Furthermore, with the increased use of direct oral anticoagulants (DOACs), baseline thrombosis data are needed to evaluate the effect of these new agents. OBJECTIVES: To determine real-life baseline VTE characteristics in a pre-DOAC era, and to document the association of HIV and TB infections with VTE. METHODS: This was a single-centre prospective cohort study performed in a quaternary care centre at Charlotte Maxeke Johannesburg Academic Hospital, SA. Key inclusion criteria included signed informed consent by adults (>=18 years) with a new episode of thrombosis. Procedures included physical examination, thrombosis risk factor assessment, duplex Doppler examination, thrombophilia screening, inpatient treatment and outpatient follow-up. RESULTS: Ninety-nine participants with confirmed thrombosis met the inclusion criteria. Participants were predominantly black (79.8%) and female (64.6%), with a median age of 46 (interquartile range (IQR) 38 - 57) years. The prevalences of HIV and TB were 53.0% and 21.2%, respectively. The most common risk factors for thrombosis were TB (17.2%) and malignancies (14.1%). Thrombophilia screening had a low diagnostic yield. The median time to target international normalised ratio during hospitalisation was 5.5 (IQR 4.0 - 7.0) days and the median duration of hospitalisation was 9 (IQR 7 - 11) days. The overall mortality rate in the cohort at 3 months post hospitalisation was 12.1%. CONCLUSIONS: This prospective study provides real-life data on thrombosis diagnosis and management at a quaternary public healthcare facility, providing a valuable baseline against which the effect of new DOAC anticoagulants can be assessed. Further research is required to clarify the aetiological association between thrombosis and HIV and TB. PMID- 29022530 TI - Male involvement in prevention of mother-to-child transmission of HIV in the context of partner testing in Goba town, Ethiopia: A facility-based cross sectional study. AB - BACKGROUND: Antenatal care (ANC) is an entry point for the prevention of mother to-child transmission (PMTCT), particularly when a man accompanies his spouse for voluntary counselling and testing (VCT), even though this seldom happens in Ethiopia. OBJECTIVE: To study the role of male partners in improving PMTCT/ANC, which is essential to prevent HIV/AIDS transmission in this country. Our study focused on identifying barriers for the low involvement in PMTCT/ANC among male partners whose spouses received ANC. METHODS: A total of 422 male partners in Goba town, Oromia regional state, Ethiopia, were recruited in September - October 2014 and enrolled by a systematic sampling method. A facility-based cross sectional study and two focus group discussions (FGDs) were conducted. Binary logistic regression and odds ratios were calculated to ascertain sociodemographic and other important information compared with the outcome variable and PMTCT/ANC, while the findings of the FGDs were grouped according to the emerging themes and analysed manually by means of a thematic approach. RESULTS: The percentage of male partners (22.7%) accompanying their spouses for HIV testing and counselling at antenatal clinics improved three-fold when an invitation letter was introduced as a new initiative to increase male participation. Individuals in the age group 15 - 29 years (adjusted odds ratio (AOR) 5.4, 95% confidence interval (CI) 1.66 - 17.85), and whose duration of marriage was ?5 years (AOR 5.6, 95% CI 1.83 - 17.30), were more likely to be tested than their referent groups. Men without a higher education (AOR 0.1, 95% CI 0.02 - 0.50), who disagreed with legal enforcement (AOR 0.1, 95% CI 0.07 - 0.32), were less likely to be tested, while those who did not notify their partners (AOR 8.4, 95% CI 1.92 - 37.12) were more likely to use the service. Being busy, proxy testing, fears of testing HIV positive, neglecting the importance of VCT, and inadequate knowledge about the PMTCT/ANC programme were other barriers that came to the fore in the FGDs. CONCLUSION: Identified barriers have to be addressed, and helpful practices, such as using invitation letters to increase the uptake of the service by male partners, have to be instituted. PMID- 29022531 TI - Survival of patients with Kaposi's sarcoma in the South African antiretroviral treatment era: A retrospective cohort study. AB - BACKGROUND: When South Africa (SA) implemented its antiretroviral therapy (ART) programme in 2004, the model for treating HIV-positive Kaposi's sarcoma (KS) patients shifted from symptomatic palliation to potential cure. OBJECTIVE: To evaluate survival and changes over time in AIDS-KS patients treated at a tertiary academic hospital oncology unit (the Steve Biko Academic Hospital medical oncology unit) in Pretoria, SA, in the context of ART availability in SA. METHODS: We conducted a retrospective review of electronic and paper records of KS patients who accessed cancer care between May 2004 and September 2012. We used Kaplan-Meier survival functions to estimate 1- and 2-year survival, and Cox regression models to identify changes over time and prognostic factors. RESULTS: Our study included 357 AIDS-KS patients, almost all of whom were black Africans (n=353, 98.9%); 224 (62.7%) were men. The median age at cancer diagnosis was 37 (interquartile range (IQR) 30 - 43) years, and the median baseline CD4+ count was 242 (IQR 130 - 403) cells/uL. Most patients received ART (n=332, 93.0%) before or after KS diagnosis; 169 (47.3%) were treated with chemotherapy and 209 (58.6%) with radiation therapy. Mortality was 62.7% lower (adjusted hazard ratio (HR) 0.37, 95% confidence interval (CI) 0.19 - 0.73) in the late (2009 - 2012) than in the early (2004 - 2008) ART period. Receiving chemotherapy (adjusted HR 0.3, 95% CI 0.15 - 0.61) and poor-risk AIDS Clinical Trials Group KS stage (adjusted HR 2.88, 95% CI 1.36 - 6.09) predicted mortality. CONCLUSIONS: Our results show that large national ART roll-out programmes can successfully reduce KS-related mortality at the individual patient level. If ART coverage is extended, KS associated morbidity and mortality are likely to drop. PMID- 29022532 TI - HIV-positive patients in the intensive care unit: A retrospective audit. AB - BACKGROUND: The indications for and outcomes of intensive care unit (ICU) admission of HIV-positive patients in resource-poor settings such as sub-Saharan Africa are unknown. OBJECTIVE: To identify indications for ICU admission and determine factors associated with high ICU and hospital mortality in HIV-positive patients. METHODS: We reviewed case records of HIV-positive patients admitted to the medical and surgical ICUs at Groote Schuur Hospital, Cape Town, South Africa, from 1 January 2012 to 31 December 2012. RESULTS: Seventy-seven HIV-positive patients were admitted to an ICU, of whom two were aged <18 years and were excluded from the final analysis. HIV infection was newly diagnosed in 37.3% of the patients admitted during the study period. HIV-positive patients had a median CD4 count of 232.5 (interquartile range 59 - 459) cells/uL. Respiratory illness, mainly community-acquired pneumonia, accounted for 30.7% of ICU admissions. ICU and hospital mortality rates were 25.3% and 34.7%, respectively. Predictors of ICU mortality included an Acute Physiology and Chronic Health Evaluation IotaIota (APACHE II) score >13 (odds ratio (OR) 1.4, 95% confidence interval (CI) 1.1 - 1.7; p=0.015), receipt of renal replacement therapy (RRT) (OR 2.2, 95% CI 1.2 - 4.1; p=0.018) and receipt of inotropes (OR 2.3, 95% CI 1.6 - 3.4; p<0.001). Predictors of hospital mortality were severe sepsis on admission (OR 2.8, 95% CI 0.9 - 9.1; p=0.07), receipt of RRT (OR 1.9, 95% CI 1.0 - 3.6; p=0.056) and receipt of inotropic support (OR 2.0, 95% CI 1.4 - 3.2; p<0.001). Use of highly active antiretroviral therapy (HAART), CD4 count, detectable HIV viral load and diagnosis at ICU admission did not predict ICU or hospital mortality. CONCLUSIONS: Respiratory illnesses remain the main indication for ICU in HIV positive patients. HIV infection is often diagnosed late, with patients presenting with life-threatening illnesses. Severity of illness as indicated by a high APACHE IotaIota score, multiple organ dysfunction requiring inotropic support and RRT, rather than receipt of HAART, CD4 count and diagnosis at ICU admission, are predictors of ICU and hospital mortality. PMID- 29022533 TI - Distribution of hepatitis B virus infection in Namibia. AB - BACKGROUND: Namibia regards hepatitis B virus (HBV) infection as a public health problem and introduced hepatitis B vaccinations for infants during 2009. However, information on HBV infection in the country remains limited, and effective public health interventions may be compromised in the absence of adequate evidence-based data. Available data from the World Health Organization (WHO) estimate that 15 - 60% of the normal population in many African countries may be positive for one or more of the HBV serological markers. OBJECTIVE: To investigate the distribution of HBV infection in Namibia, using available laboratory data for 2013. METHODS: A cross-sectional descriptive study was conducted using pre-existing electronic laboratory data on HBV infection. The data were retrieved from the central Namibia Institute of Pathology laboratory in Windhoek during January - December 2013. Tests were done on the following three main groups: (i) pregnant women during routine antenatal care (ANC) visits; (ii) patients with HIV/AIDS during antiretroviral therapy clinic visits; and (iii) any other individual suspected of having HBV infection. RESULTS: Of a total of 77 238 hepatitis B surface antigen test results retrieved countrywide, 9 087 (11.8%) were positive. Of the positive results, 246/9 087 (2.7%) were in children aged 0 - 14 years, with the sexes equally affected. HBV infections increased markedly, particularly among females, in the age group 15 - 39 years, reaching a peak in the age group 30 - 34 years. Routine screening of pregnant women for HBV during ANC visits was found to be systematically conducted in only two regions, Ohangwena and Khomas. CONCLUSIONS: This study showed high proportions of positive results in pregnant women, patients with HIV/AIDS and individuals suspected of having HBV infection. The Ministry of Health and Social Services and stakeholders may wish to consider improving the routine and surveillance reporting systems for viral hepatitis and uptake of screening for pregnant women in all regions, and expanding HBV screening to other population groups. Population-based or similar studies are therefore required to determine the HBV prevalence and risk factors. This will assist Namibia in developing appropriate national viral hepatitis strategies as per WHO recommendations. PMID- 29022534 TI - Therapeutic drug monitoring of amlodipine and the Z-FHL/HHL ratio: Adherence tools in patients referred for apparent treatment-resistant hypertension. AB - BACKGROUND: Non-adherence to antihypertensives is a cause of 'pseudo-treatment resistant' hypertension. OBJECTIVE: To determine whether monitoring plasma amlodipine concentrations and inhibition of angiotensin-converting enzyme (ACE) can be adjunct adherence tools. METHODS: Patients with hypertension who were prescribed enalapril and amlodipine were enrolled. Blood pressures (BPs) were monitored and an adherence questionnaire was completed. Steady-state amlodipine was assayed using liquid chromatography-mass spectrometry and degree of ACE inhibition using the Z-FHL/HHL (z-phenylalanine-histidine-leucine/hippuryl histidine-leucine) ratio. RESULTS: One hundred patients (mean (standard deviation) age 50.5 (12) years, 46% male) were enrolled. Based on plasma assays, 26/97 patients (26.8%) were unsuppressed by enalapril and 20/100 (20%) were sub therapeutic for amlodipine. There were significant BP differences based on plasma levels of the medication: 21/20 mmHg lower in the group with suppressed ACE and 26/20 mmHg in the group with steady-state amlodipine concentrations. CONCLUSIONS: Monitoring antihypertensive adherence by assaying plasma medication concentrations is a feasible option for evaluating true v. pseudo-resistant hypertension. PMID- 29022535 TI - Gender disparities in pulmonary hypertension at a tertiary centre in Cameroon. AB - BACKGROUND: Pulmonary hypertension (PH) is a potent cause of heart failure and has been little investigated in the African setting. OBJECTIVE: To investigate the effects of gender on the clinical presentation, echocardiographic features and outcomes of patients with PH in Douala, Cameroon. METHODS: A prospective cohort study was conducted from March 2012 to December 2013 as part of the Pan African Pulmonary Hypertension Cohort study. PH was diagnosed by echocardiography and defined as a right ventricular systolic pressure >35 mmHg in the absence of acute right heart failure. Patients were followed up for a maximum of 12 months for primary endpoint mortality. RESULTS: In total, 130 patients with PH were recruited; 71 (54.6%) were women. The median age was 59.2 years for men and 58.3 years for women (p=0.76). Active smoking and alcohol use were more frequent in men than women (both p<0.001), but women had greater exposure to indoor cooking fumes than men (p<0.001). Previous tuberculosis infection (11.3% v. 1.7%) and S3 gallop rhythm (30.9% v. 11.9%) were more common in women (both p<0.03). Women had a significantly higher mean systolic blood pressure (134 mmHg v. 125 mmHg; p=0.04) and pulse pressure (53.8 mmHg v. 44.9 mmHg; p=0.01) and a lower mean haemoglobin concentration (10.4 g/dL v. 12.4 g/dL; p<0.05) compared with men. Echocardiographic left ventricular (LV) systolic dysfunction was more frequent in men: mean LV ejection fraction 42.6% v. 51.5% (p=0.01) and mean fractional shortening 21.4% v. 28.6% (p=0.01). The overall mortality rate was 20.3%, and rates were similar in the two groups (Kaplan-Meier log rank 1.1; p=0.30). CONCLUSIONS: Despite differences in baseline characteristics including cardiovascular risk factors, mortality rates on follow-up were similar in men and women in this study. However, these different baseline characteristics probably suggest differences in the pathogenesis of PH in men and women in our setting that need further investigation. PMID- 29022536 TI - Short-term outcomes of inborn v. outborn very-low-birth-weight neonates (<1 500 g) in the neonatal nursery at Groote Schuur Hospital, Cape Town, South Africa. AB - BACKGROUND: The Groote Schuur Hospital (GSH) neonatal nursery provides level 3 care for the Metro West Health District in the Western Cape Province of South Africa. Worldwide, very-low-birth-weight (VLBW) neonates delivered in level 3 neonatal units have better outcomes than those transported from other facilities. OBJECTIVES: To identify the characteristics and outcomes of VLBW neonates at GSH, with emphasis on differences between inborns and outborns. METHODS: This was a retrospective cohort study. VLBW neonates admitted to the GSH neonatal nursery between 1 January 2012 and 31 December 2013 were enrolled on the Vermont Oxford Network database and reviewed. RESULTS: Of 1 032 VLBW neonates enrolled, 906 (87.8%) were delivered at GSH and 126 (12.2%) were outborn. Access to antenatal care, antenatal steroids and inborn status were statistically significant predictors of mortality and survival without morbidity. The mothers of inborn patients were more likely than those of outborn patients to have received antenatal care (89.1% v. 57.9%; p<0.0001) and antenatal steroids (64.2% v. 15.2%; p<0.0001). Inborns required less ventilatory support (16.2% v. 57.9%; p<0.0001) and surfactant administration than outborns (25.3% v. 65.1%; p<0.0001), and developed less late infection (8.8% v. 23.4%; p<0.0001), severe intraventricular haemorrhage (3.7% v. 13.9%; p<0.0001) and chronic lung disease (5.3% v. 13.4%; p=0.003). The incidence of necrotising enterocolitis was similar in the two groups (5.9% v. 8.7%; p=0.227). The mortality rate was 18.4% for inborns and 33.3% for outborns (p<0.0001). Mortality declined as birth weight increased. Of the survivors, 85.0% of inborns and 70.2% of outborns did not develop serious morbidity (p=0.003). CONCLUSIONS: VLBW neonates delivered at GSH had better outcomes than their outborn counterparts. Perinatal regionalisation is beneficial to our patients, with antenatal care, timeous transfer in utero and antenatal steroids contributing to excellent outcomes. PMID- 29022537 TI - Respiratory comorbidity in South African children with atopic dermatitis. AB - BACKGROUND: Atopic dermatitis (AD) is an early and important step in the propagation of the allergic march, enhancing food and respiratory allergies via epicutaneous sensitisation to allergens. OBJECTIVES: To determine the prevalence and patterns of aeroallergen sensitisation, asthma and allergic rhinitis in South African (SA) children with AD. METHODS: This was a prospective, observational study in a paediatric university hospital in Cape Town, SA. Children with moderate to severe AD, aged 6 months - 10 years, were recruited randomly and investigated for food sensitisation and allergy. They were assessed for sensitisation to aeroallergens by the immuno solid-phase allergen chip test. House-dust mite DerP and DerF, dust mite Eur m, Timothy grass, Bermuda grass, tree pollen, mould (Alternaria), cat and dog sensitisation patterns were analysed. Symptoms of asthma and allergic rhinitis were elicited using a questionnaire modified from the International Study of Asthma and Allergies in Childhood study questions. RESULTS: One hundred participants (59 black Africans and 41 of mixed ethnicity) were enrolled (median age 42 months). Of the participants, 39% had symptoms of asthma and 53% symptoms of allergic rhinitis; 89% tested positive to at least one aeroallergen, most commonly house-dust mite DerP or DerF (81%), dust mite Eur m (51%), Timothy grass (36%) and cat (35%). Asthma, allergic rhinitis and aeroallergen sensitisation all increased with increasing age, while food allergy decreased with age. Food allergy was not an independent risk factor for respiratory allergies. Children were sensitised to indoor allergens (house-dust mite, pets) from an early age, while pollen allergies increased with age. CONCLUSIONS: In this cohort of SA children with moderate to severe AD, comorbidity with respiratory allergies was high. The prevalence of respiratory allergies increased with age while food allergy decreased with age, in keeping with the pattern of the allergic march. Seasonal allergies increased with age, while house-dust mite and pet allergy peaked in younger children, in keeping with early exposure via a defective skin barrier. Early and effective restoration of the skin barrier in AD may be a target for reducing aeroallergen-related diseases. PMID- 29022538 TI - Preoperative fasting times: Prescribed and actual fasting times at Universitas Hospital Annex, Bloemfontein, South Africa. AB - BACKGROUND: Guidelines recommend a preoperative fasting period of 6 hours for solid food and 2 hours for clear fluids. Because of fixed meal times and imprecise operation starting times, patients often fast for an extended period of time. OBJECTIVE: To investigate the prescribed preoperative fasting times, and the actual duration of fasting, compared with the internationally accepted fasting times for solid food and clear fluids. METHODS: Patients (N=105) aged 14 60 years, who were scheduled for elective surgery in the morning session (list starting time 07h00), were included in this prospective study. On arrival in theatre, all patients were asked when they last ate and drank. Anaesthetic records were used to determine the prescribed fasting times and operation starting times. RESULTS: For solids, patients were most frequently prescribed to start fasting from 22h00 to 00h00 (53.3% and 39.1%, respectively). No patient fasted <8 hours. The median duration of fasting was 14 hours and 45 minutes (range 9 hours and 45 minutes - 19 hours and 5 minutes). For fluids, patients were most frequently prescribed to start fasting from 05h00 (46.7%), 00h00 (27.6%) and 22h00 (7.6%). In practice, no patient ingested fluids after 22h30 or <9 hours preoperatively. The median fasting time for oral fluids was 13 hours and 25 minutes (range 9 hours and 37 minutes - 19 hours and 5 minutes). CONCLUSION: Most patients started fasting too early preoperatively, consequently withholding food and oral fluids for longer than recommended. An increased awareness regarding complications of unnecessarily long fasting times, and interventions to correct this problem, is required. PMID- 29022539 TI - Bibliometric trends of South African environmental health articles between 1998 and 2015: Making local research visible and retrievable. AB - BACKGROUND: South Africa (SA) has to grapple with multiple burdens of disease for which environmental factors have a role to play in both causation and prevention. This article describes a bibliometric review of environmental health indexed literature for SA over an 18-year period. OBJECTIVES: To provide an overview of the nature of SA-based published environmental health indexed research and to identify search challenges, frequently researched topics, and gaps and opportunities for future research. METHODS: The Web of Science, PubMed and Science Direct were used to search for original, peer-reviewed and review articles with the inclusion criteria 'environmental health' and 'South Africa' available online and published between 1998 and 2015, inclusively. RESULTS: A total of 230 journal articles were included in the bibliometric analysis. The highest number of articles (n=54) was published in 2015. The majority of the first authors were affiliated with SA institutions (n=160, 69.5%). For the articles where funding was explicitly declared (n=148), the three most frequently occurring agencies that funded the published research were the National Research Foundation in SA (n=17), the South African Medical Research Council (n=13) and the Water Research Commission (n=9). There was little inter-annual/environmental health category variation over time owing to the relatively small sample size. The largest number of retrieved journal articles was in the area of environmental pollution control (n=76), followed by environmental health lifestyle and behaviour-related topics (n=42) and then water monitoring (n=26). CONCLUSIONS: Despite the research needed to solve large environmental health challenges in SA, environmental health was only used as a keyword in title, author keywords or abstract for 230 SA-based studies over an 18-year period. This makes it extremely difficult for environmental health research to be located and used to inform the profession as well as the research agenda. Several issues that environmental health practitioners are typically tasked to implement and monitor are not indexed as environmental health topics. The need for authors to use 'environmental health' as a keyword is emphasised, particularly if research is to inform decision-making and policy support, as well as guide future research in the country. PMID- 29022540 TI - Notification that new names of prokaryotes, new combinations, and new taxonomic opinions have appeared in volume 67, part 7, of the IJSEM. PMID- 29022541 TI - Ruegeria profundi sp. nov. and Ruegeria marisrubri sp. nov., isolated from the brine-seawater interface at Erba Deep in the Red Sea. AB - Two moderately halophilic marine bacterial strains of the family Rhodobacteraceae, designated ZGT108T and ZGT118T, were isolated from the brine seawater interface at Erba Deep in the Red Sea (Saudi Arabia). Cells of both strains were aerobic, rod-shaped, non-motile, and Gram-stain-negative. The sequence similarity of the 16S rRNA genes of strains ZGT108T and ZGT118T was 94.9 %. The highest 16S rRNA gene sequence similarity of strain ZGT108T to its closest relative, Ruegeria conchae JCM 17315T, was 98.9 %, while the 16S rRNA gene of ZGT118T was most closely related to that of Ruegeria intermedia LMG 25539T (97.7 % similarity). The sizes of the draft genomes as presented here are 4 258 055 bp (strain ZGT108T) and 4 012 109 bp (strain ZGT118T), and the G+C contents of the draft genomes are 56.68 mol% (ZGT108T) and 62.94 mol% (ZGT108T). The combined physiological, biochemical, phylogenetic and genotypic data supported placement of both strains in the genus Ruegeria and indicated that the two strains are distinct from each other as well as from all other members in the genus Ruegeria. This was also confirmed by low DNA-DNA hybridization values (<43.6 %) and low ANI values (<91.8 %) between both strains and the most closely related Ruegeria species. Therefore, we propose two novel species in the genus Ruegeria to accommodate these novel isolates: Ruegeriaprofundi sp. nov. (type strain ZGT108T=JCM 19518T=ACCC 19861T) and Ruegeriamarisrubri sp. nov. (type strain ZGT118T=JCM 19519T=ACCC 19862T). PMID- 29022542 TI - Streptococcus azizii sp. nov., isolated from naive weanling mice. AB - Three isolates of a previously reported novel catalase-negative, Gram-stain positive, coccoid, alpha-haemolytic, Streptococcus species that were associated with meningoencephalitis in naive weanling mice were further evaluated to confirm their taxonomic status and to determine additional phenotypic and molecular characteristics. Comparative 16S rRNA gene sequence analysis showed nearly identical intra-species sequence similarity (>=99.9 %), and revealed the closest phylogenetically related species, Streptococcus acidominimus and Streptococcuscuniculi, with 97.0 and 97.5 % sequence similarity, respectively. The rpoB, sodA and recN genes were identical for the three isolates and were 87.6, 85.7 and 82.5 % similar to S. acidominimus and 89.7, 86.2 and 80.7 % similar to S. cuniculi, respectively. In silico DNA-DNA hybridization analyses of mouse isolate 12-5202T against S. acidominimus CCUG 27296T and S. cuniculi CCUG 65085T produced estimated values of 26.4 and 25.7 % relatedness, and the calculated average nucleotide identity values were 81.9 and 81.7, respectively. These data confirm the taxonomic status of 12-5202T as a distinct Streptococcus species, and we formally propose the type strain, Streptococcusazizii 12-5202T (=CCUG 69378T=DSM 103678T). The genome of Streptococcus azizii sp. nov. 12-5202T contains 2062 total genes with a size of 2.34 Mbp, and an average G+C content of 42.76 mol%. PMID- 29022543 TI - Gemmobacter straminiformis sp. nov., isolated from an artificial fountain. AB - A Gram-stain-negative, non-motile and facultative anaerobic bacterium, designated CAM-8T, was isolated from an artificial fountain at Chonbuk National University, South Korea. The novel strain grew at 20-37 degrees C (optimum 25 degrees C), pH 5.5-7.0 (optimum 6.0) and with 0-2 % NaCl (optimum 0 %). Oxidase and catalase activities were positive. The cell morphology of strain CAM-8T was atypical rods 0.6-0.8 um in width and 4.5-6.5 um in length, with a peaked tip and sometimes a bulb shape. CAM-8T existed as single cells, and as pairs or chains of cells. The phylogenetic analysis of 16S rRNA gene sequences indicated that strain CAM-8T clustered with Gemmobacter nectariphilus JCM 11959T and Gemmobactermegaterium JCM 18498T within the genus Gemmobacter. The DNA G+C content of strain CAM-8T was 65.9 mol%. The respiratory quinone was ubiquinone Q-10. The major fatty acids were C18 : 1omega7c and/or C18 : 1omega6c. The polar lipids of strain CAM-8T consisted of phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, two uncharacterized phospholipids, an uncharacterized aminolipid, an uncharacterized glycolipid, an uncharacterized aminophospholipid and four uncharacterized lipids. On the basis of phenotypic, phylogenetic and chemotaxonomic data, strain CAM-8T (=KACC 19224T=JCM 31905T) is considered to represent a novel species of the genus Gemmobacter, for which the name Gemmobacter straminiformis sp. nov. is proposed. PMID- 29022544 TI - Lymphogranuloma venereum rates increased and Chlamydia trachomatis genotypes changed among men who have sex with men in Sweden 2004-2016. AB - This study aimed to determine the incidence of lymphogranuloma venereum (LGV) in Sweden since 2004 and to study in detail a consecutive number of Chlamydia trachomatis cases in men who have sex with men (MSM) during a 10 month period (September 2014 to July 2015). LGV increased from sporadic import cases in 2004 to comprise a spread within Sweden in 2016. Initially, only the L2b ompA genotype was detected, but in 2015 half of the genotyped LGV cases were L2 genotype. The changing genotype distribution in Sweden is linked to increased LGV spread in Europe. High-resolution multilocus sequence typing of 168 C. trachomatis cases from MSM in 2015 resulted in 29 sequence types, of which 3 accounted for 49 % of cases. The increased rates and different genotypes of LGV indicate that more concern for high-risk taking MSM is needed to avoid further spread of this invasive infection. PMID- 29022546 TI - Erratum: Proposal for the reclassification of obligately purine-fermenting bacteria Clostridium acidurici (Barker 1938) and Clostridium purinilyticum (Durre et al. 1981) as Gottschalkia acidurici gen. nov. comb. nov. and Gottschalkia purinilytica comb. nov. and of Eubacterium angustum (Beuscher and Andreesen 1985) as Andreesenia angusta gen. nov. comb. nov. in the family Gottschalkiaceae fam. nov. PMID- 29022545 TI - Nocardioides litorisoli sp. nov., isolated from lakeside soil. AB - A Gram-stain-positive, rod-shaped, non-spore-forming bacterium, designated as x 2T, was isolated from lakeside soil of Sayram in the Xinjiang Uygur Autonomous Region, PR China. On the basis of 16S rRNA gene sequences, strain x-2T belongs to the genus Nocardioides in the family Nocardioidaceae, being most closely related to Nocardioides panacisoli Gsoil 346T (97.36 % 16S rRNA gene sequence similarity). Strain x-2T was characterized chemotaxonomically and found to have ll-diaminopimelic acid in the cell-wall peptidoglycan, phosphatidylglycerol, diphosphatidylglycerol, glycolipids and another three unknown phospholipids as the major polar lipids, MK-8(H4) as the predominant menaquinone and C18 : 1omega9c, iso-C16 : 0, C17 : 1omega8c and C16 : 0 as the major fatty acids. The genomic DNA G+C content of the novel strain was 71.1 mol%. The level of DNA-DNA relatedness between strain x-2T and N. panacisoli KCTC 19470T (=Gsoil 346T) was 29.8 %. These chemotaxonomic characters support the position of strain x-2T within the genus Nocardioides. The results of physiological and biochemical tests, as well as phylogenetic analysis, suggest that strain x-2T represents a novel species of the genus Nocardioides, for which the name Nocardioides litorisoli sp. nov. is proposed. The type strain is x-2T (=KCTC 39845T=CCTCCAB 2016255T). PMID- 29022547 TI - Oceanibaculum nanhaiense sp. nov., isolated from surface seawater. AB - A taxonomic study was carried out on strain L54-1-50T, which was isolated from surface seawater of the South China Sea. Cells of strain L54-1-50T were Gram stain-negative, rod-shaped, oxidase-positive and catalase-positive. Growth was observed at salinities from 0 to 9 % (optimum 2 %, w/v), at pH 6.0-10.0 (optimum 8.0-9.0) and at temperatures from 10 to 45 degrees C (optimum 25-37 degrees C), but not at 4 or 50 degrees C. The 16S rRNA gene sequence analysis indicated that strain L54-1-50T was a member of the genus Oceanibaculum, related to Oceanibaculum indicum P24T (98.8 %) and Oceanibaculum pacificum MC2UP-L3T (97.7 %). The digital DNA-DNA hybridization values between strain L54-1-50T and the two type strains O. indicum P24T and O. pacificum MC2UP-L3T were 35.4+/-2.5 and 23.7+/-2.5 %, respectively. The average nucleotide identity values between strain L54-1-50T and two type strains were 79.7 and 88.3 %, respectively. The major cellular fatty acids were summed feature 8 (C18 : 1omega7c and/or C18 : 1omega6c), C16 : 0 and C18 : 1 2-OH. The respiratory quinone was Q-10. The polar lipids comprised diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylglycerol, two unidentified phospholipids and three unidentified lipids. The G+C content of the chromosomal DNA was 65.1 mol%. The combined genotypic and phenotypic data showed that strain L54-1-50T represents a novel species of the genus Oceanibaculum, for which the name Oceanibaculumnanhaiense sp. nov. is proposed, with the type strain L54-1-50T (=KCTC 52312T=MCCC 1A05150T). PMID- 29022548 TI - Frondibacter mangrovi sp. nov., a member of the family Flavobacteriaceae isolated from seawater by in situ cultivation, and emended description of Frondibacter aureus. AB - A Gram-stain-negative, rod-shaped, non-motile, strictly aerobic, chemoheterotrophic, light-yellow-pigmented bacterium, designated strain 02OK1/10 76T, was isolated from a mangrove estuary in Japan by use of an in situ cultivation technique. Preliminary analysis based on the 16S rRNA gene sequence revealed that the novel isolate was affiliated with the family Flavobacteriaceae of the phylum Bacteroidetes and that it showed highest sequence similarity (96.9 %) to Frondibacter aureus A5Q-67T. The DNA G+C content of strain 02OK1/10-76T was 35 mol%; MK-6 was the only menaquinone; and iso-C15 : 0, iso-C17 : 0 3-OH and iso C16 : 0 3-OH were the major (>10 %) cellular fatty acids. The polar lipid profile consisted of phosphatidylethanolamine, three unidentified aminolipids, an unidentified aminophospholipid and an unidentified lipid. From the distinct phylogenetic position and combination of genotypic and phenotypic characteristics, the strain represents a novel species of the genus Frondibacter, for which the name Frondibacter mangrovi sp. nov. is proposed. The type strain is 02OK1/10-76T (= KCTC 52666T = NBRC 112695T). An emended description of F. aureus is also provided. PMID- 29022549 TI - Altererythrobacter mangrovi sp. nov., isolated from mangrove sediment. AB - A Gram-stain-negative, facultative anaerobic, yellow-pigmented, rod-shaped, non flagellum and non-motile bacterial strain, designed C9-11T, was isolated from mangrove sediment in Zhangzhou, Fujian Province, China. Growth was observed at temperatures from 15 to 37 degrees C (optimum 30 degrees C), at salinities from 0 to 4 % (optimum 0.5-2 %) and at pH from 6 to 8 (optimum 7). Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain C9-11T was a member of the genus Altererythrobacter. Strain C9-11T was related most closely to Altererythrobacter oceanensis Y2T (96.8 % 16S rRNA gene sequence similarity), followed by Altererythrobacter marinus H32T (96.5 %). The G+C content of the genomic DNA was 63.5 mol%. The dominant fatty acids were C18 : 1omega7c (41.6 %), C17 : 1omega6c (15.4 %), 11-methyl C18 : 1omega7c (8.1 %), summed feature 3 (comprising C16 : 1omega7c and/or C16 : 1omega6c 7.4 %) and C16 : 0 (6.2 %). The predominant respiratory quinone was ubiquinone-10 and the major polar lipids were diphosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol and sphingoglycolipid. According to its morphology, physiology, fatty acid composition and 16S rRNA gene sequence analysis, strain C9 11Tbelongs to genus Altererythrobacter, but can readily be distinguished from recognized species. Strain C9-11T is proposed as the type strain of a novel species of the genus Altererythrobacter, for which the nameAltererythrobactermangrovi sp. nov (=MCCC 1K03311T=JCM 32056T) is proposed. PMID- 29022551 TI - Lentzea pudingi sp. nov., isolated from a weathered limestone sample in a karst area. AB - A novel Gram-stain-positive, aerobic bacterium, designated strain DHS C021T, was isolated from a limestone sample collected from the Puding Karst Ecosystem Research Station of Guizhou Province, southwest China. This strain developed branched vegetative mycelia, and its aerial mycelia fragmented into rod-shaped spores. The cell-wall peptidoglycan contained meso-diaminopimelic acid and the whole-cell sugars comprised galactose, ribose and mannose. The respiratory quinone was identified as menaquinone MK-9(H4). The major cellular fatty acids were iso-C14 : 0 and iso-C16 : 0. The phospholipids detected were diphosphatidylglycerol, phosphatidylethanolamine, hydroxyl phosphatidyethanolamine, phosphatidylinositol, phosphotidylinositolmannosides and one unidentified phospholipid. The genomic DNA G+C content was 69.8 mol% and 16S rRNA gene sequence analysis showed that the strain belonged to the genus Lentzea and shared highest sequence similarity with Lentzeaalbida CGMCC 4.1727T (98.8 %) and Lentzea waywayandensis CGMCC 4.1646T (98.5 %). However, it could be distinguished from these reference strains based on the low levels of DNA-DNA relatedness (54.5+/-2.7 and 41.7+/-3.2 %, respectively). On the basis of morphological, chemotaxonomic and phylogenetic characteristics, and DNA-DNA hybridization data, strain DHS C021T represents a novel species of the genus Lentzea, for which the name Lentzeapudingi sp. nov. is proposed. The type strain is DHS C021T (=CGMCC 4.7319T=KCTC 39694T). PMID- 29022550 TI - Streptococcus gordonii pheromone s.g.cAM373 may influence the reservoir of antibiotic resistance determinants of Enterococcus faecalis origin in the oral metagenome. AB - Streptococcus gordonii produces a pheromone heptapeptide, s.g.cAM373, which induces a conjugative mating response in Enterococcus faecalis cells carrying the responsive plasmid, pAM373. We investigated the extent of this intergeneric signaling on DNA acquisition by streptococcal species likely to cohabit oral biofilms. E. faecalis/pAM373/pAMS470 cells were incubated with synthetic s.g.cAM373, reverse peptide s.g.cAM373-R, or peptide-free medium and examined for their abilities to transfer plasmid DNA to streptococcal species in the presence of DNase. Preinduction of E. faecalis donors with s.g.cAM373 resulted in transconjugation frequencies in non-pheromone producing strains of Streptococcus mutans, Streptococcus sanguinis, Streptococcus anginosus, and Streptococcus suis that were significantly higher than frequencies when donors were preincubated with s.g.cAM373-R or medium alone. Peptide-mediated communication between commensal streptococci and E. faecalis carrying pheromone-responsive plasmids may facilitate conjugative DNA transfer to bystander species, and influence the reservoir of antibiotic resistance determinants of enterococcal origin in the oral metagenome. PMID- 29022552 TI - Multiplex PCR for identification of six clinically relevant streptococci. AB - PURPOSE: The aim of this study was to develop a multiplex PCR (mPCR) for simultaneous detection (single reaction) of six clinically relevant streptococcal species: Streptococcus pneumoniae, Streptococcus suis, Streptococcus gallolyticus subsp. gallolyticus, S. gallolyticus subsp. pasteurianus, Streptococcus intermedius and Streptococcus anginosus/constellatus. METHODS: mPCR with primers specific for S. pneumoniae (lytA), S. suis (recN), S. gallolyticus subsp. gallolyticus (tanB), S. gallolyticus subsp. pasteurianus (SGPB0680 cell wall surface protein), S. intermedius (ily) and S. anginosus/constellatus (moaC) was employed with 37 reference bacterial strains and 442 clinical streptococcal isolates collected from seven tertiary hospitals in north-east Thailand. Results from this mPCR were compared to those obtained with the API 20 Strep and conventional biochemical tests. RESULTS: The six clinically relevant streptococcal species gave the expected amplification products of 229, 362, 531, 723, 819 and 978 bp for S. pneumoniae, S. gallolyticus subsp. gallolyticus, S. gallolyticus subsp. pasteurianus, S. suis, S. intermedius and S. anginosus/S. constellatus, respectively. Non-specific reactions were not observed with the other bacterial species tested. For the 442 clinical streptococci, this mPCR assay confirmed the identity of the species in accordance with results obtained with the API 20 Strep and conventional biochemical tests. CONCLUSION: This mPCR can be applied to the rapid identification of pure cultures of these six streptococci. The test was shown to be rapid, simple and reliable for the identification of these streptococci at the species level. This assay should be useful for laboratory identification and surveillance of human infections by these bacterial species. PMID- 29022554 TI - Corrigendum: Description of two novel members of the family Erysipelotrichaceae: Ileibacterium valens gen. nov., sp. nov. and Dubosiella newyorkensis, gen. nov., sp. nov., from the murine intestine, and emendation to the description of Faecalibacterium rodentium. PMID- 29022553 TI - Polynucleobacter aenigmaticus sp. nov. isolated from the permanently anoxic monimolimnion of a temperate meromictic lake. AB - The bacterial strain MWH-K35W1T was isolated from a permanently anoxic water layer of a meromictic lake located in the Austrian Salzkammergut area. The basically chemo-organoheterotrophic strain was isolated and maintained under aerobic conditions. Phylogenetic analyses of the 16S rRNA gene and the glutamine synthetase gene (glnA) of the strain suggested an affiliation to the genus Polynucleobacter and the cryptic species complex PnecC. Strain MWH-K35W1T shares with the type strains of the six free-living species of the genus Polynucleobacter affiliated with this species complex 16S rRNA gene sequence similarities of 99.6-99.9 %, while the type material of the obligate endosymbiont Polynucleobacternecessarius, which is also affiliated with this species complex, shares a gene sequence similarity of 99.1 %. Genome sequencing resulted in a genome size of 2.14 Mbp and a DNA G+C content of 45.98 mol%. Major fatty acids were C16 : 1omega7c, C18 : 1omega7c and C16 : 0. This strain is the first strain of the genus Polynucleobacter found to encode a proteorhodopsin-like protein but, in contrast to some other strains affiliated to this genus, it does not encode a putative anoxygenic photosynthesis system. Multilocus sequence analysis based on partial sequences of eight housekeeping genes, as well as average nucleotide identity (ANI) analyses, did not suggest that strain MWH-K35W1T belongs to a previously described species. We propose the name Polynucleobacter aenigmaticus for a novel species with strain MWH-K35W1T (=DSM 24006T=LMG 29706T) as the type strain. PMID- 29022555 TI - Cyberlindnera xishuangbannaensis f.a., sp. nov., a yeast isolated from rotting wood. AB - Three strains representing a novel species of yeast were isolated from samples of rotting wood collected from Xishuangbanna Tropical Rainforest in Yunnan Province, PR China. Phylogenetic analysis based on the concatenated sequences of the internal transcribed spacer (ITS) region and the D1/D2 domains of the large subunit (LSU) rRNA gene revealed that the novel species is a member of the genus Cyberlindnera, although the formation of ascospores was not observed. The novel species was related most closely to the type strain of the species Candida pattaniensis, but they had a 0.5 % sequence divergence (3 substitutions, 0 gap) in the D1/D2 domain and a 5.4 % sequence divergence (21 substitutions, 10 gaps) in the ITS region. The novel species could also be differentiated from the closely related species by some biochemical and physiological characteristics. The species name Cyberlindnera xishuangbannaensis f.a., sp. nov. is proposed to accommodate these strains, with NYNU 16752T (=CICC 33163T=CBS 14692T) designated as the type strain. The MycoBank number is MB 822199. PMID- 29022556 TI - Erratum: Mesonia maritimus sp. nov., isolated from seawater of the South Sea of Korea. PMID- 29022557 TI - Two Childhood Pheochromocytoma Cases due to von Hippel-Lindau Disease, One Associated with Pancreatic Neuroendocrine Tumor: A Very Rare Manifestation AB - von Hippel-Lindau (VHL) disease is an autosomal dominantly inherited disorder, characterized by hemangioblastomas of the retina and central nervous system (CNS); renal cysts; clear cell carcinoma; pheochromocytoma (PCC); endolymphatic sac tumors; cystadenomas of the epididymis in males; broad ligament of uterus in females; pancreatic cysts; cystadenomas; and neuroendocrine tumors. We report two cases of VHL disease that presented with PCC as the first manifestation. Further clinical developments during follow-up, hemangioblastoma of CNS in one case and a pancreatic neuroendocrine tumor (PNET) in the second case led to the diagnosis of VHL disease. Genetic analyses of the two cases revealed p.Arg161Gln (c.482G>A) and p.Leu129Pro (c.386T>G) heterozygous missense mutations in the VHL gene, respectively. In children, PCC may be the only and/or initial manifestation of VHL with delayed manifestations of the syndrome in other organs. PNET is a very rare manifestation of VHL disease. To the best of our knowledge, this is only the second reported case presenting with a combination of a PNET and bilateral PCC as components of childhood VHL disease. Pediatric patients diagnosed with PCC should be investigated for genetic causes and especially for VHL. PMID- 29022558 TI - Klinefelter Syndrome in Childhood: Variability in Clinical and Molecular Findings AB - OBJECTIVE: Klinefelter syndrome (KS) is the most common (1/500-1/1000) chromosomal disorder in males, but only 10% of cases are identified in childhood. This study aimed to review the data of children with KS to assess the age and presenting symptoms for diagnosis, clinical and laboratory findings, together with the presence of comorbidities. METHODS: Twenty-three KS patients were analyzed retrospectively. Age at admission, presenting symptoms, comorbid problems, height, weight, pubertal status, biochemical findings, hormone profiles, bone mineral density and karyotype were evaluated. Molecular analysis was also conducted in patients with ambiguous genitalia. RESULTS: The median age of patients at presentation was 3.0 (0.04-16.3) years. Most of the cases were diagnosed prenatally (n=15, 65.2%). Other reasons for admission were scrotal hypospadias (n=3, 14.3%), undescended testis (n=2, 9.5%), short stature (n=1, 4.8%), isolated micropenis (n=1, 4.8%) and a speech disorder (n=1, 4.8%). The most frequent clinical findings were neurocognitive disorders, speech impairment, social and behavioral problems and undescended testes. All except two patients were prepubertal at admission. Most of the patients (n=20, 86.9%) showed the classic 47,XXY karyotype. Steroid 5 alpha-reductase 2 gene and androgen receptor gene mutations were detected in two of the three cases with genital ambiguity. CONCLUSION: Given the large number of underdiagnosed KS patients before adolescence, pediatricians need to be aware of the phenotypic variability of KS in childhood. Genetic analysis in KS patients may reveal mutations associated with other forms of disorders of sex development besides KS. PMID- 29022559 TI - Tuberculosis, human immunodeficiency virus, and the immune reconstitution inflammatory syndrome. PMID- 29022560 TI - Topical therapy of psoriasis: Where do we stand? PMID- 29022561 TI - Upwardly mobile: Lowered hearing? PMID- 29022563 TI - Statistical medicine: An emerging medical specialty. AB - A large number of statistical tools are now used for medical decision in the core activities of diagnosis, treatment and prognosis. These tools provide undeniable help in improving medical outcomes. Prominent among them are uncertainty measurement by probability, medical indicators and indexes, reference ranges, and scoring systems. In addition are tools such as odds ratio, sensitivity, specificity and predictivities, area under the ROC curve, likelihood ratios, and cost-benefit analysis that are commonly applied in medical research but have implications for day-to-day clinical activities. These tools have so completely integrated into medical practice that statistical medicine by itself can stand alone as a medical specialty. Time has arrived to recognize statistical medicine as a medical specialty. PMID- 29022564 TI - Precursor B-cell acute lymphoblastic leukemia: An unusual cause of bilateral nephromegaly in an infant. PMID- 29022565 TI - Malignant orbital teratoma in a neonate: A clinicopathological case report. PMID- 29022562 TI - Ketogenic diet in endocrine disorders: Current perspectives. AB - Ketogenic diet (KD) is a high-fat, adequate-protein, and low-carbohydrate diet that leads to nutritional ketosis, long known for antiepileptic effects and has been used therapeutically to treat refractory epilepsy. This review attempts to summarize the evidence and clinical application of KD in diabetes, obesity, and other endocrine disorders. KD is usually animal protein based. An empiric vegetarian Indian variant of KD has been provided keeping in mind the Indian food habits. KD has beneficial effects on cardiac ischemic preconditioning, improves oxygenation in patients with respiratory failure, improves glycemic control in diabetics, is associated with significant weight loss, and has a beneficial impact on polycystic ovarian syndrome. Multivitamin supplementations are recommended with KD. Recently, ketones are being proposed as super-metabolic fuel; and KD is currently regarded as apt dietary therapy for "diabesity." PMID- 29022566 TI - Adenosine monophosphate- activated protein kinase- based classification of diabetes pharmacotherapy. PMID- 29022567 TI - Reply to letter to editor regarding the article, "Adenosine monophosphate activated protein kinase-based classification of diabetes pharmacotherapy". PMID- 29022568 TI - Erratum: Directly converting CO2 into a gasoline fuel. AB - This corrects the article DOI: 10.1038/ncomms15174. PMID- 29022570 TI - Arterial stiffness as a risk factor for clinical hypertension. AB - In patients with uncomplicated essential hypertension, cardiac output remains within normal ranges and intravascular volume is normal or low, assuming the presence of a sufficient Windkessel effect and usual resistance and compliance calculations. However, mean circulatory pressure is elevated in these patients. In addition, vascular resistance is augmented, and most importantly, the viscoelasticity of the cardiovascular system is substantially impaired. Such considerations are essential to understanding the mechanisms behind carotid femoral arterial stiffness, a major risk factor in individuals with hypertension. Arterial stiffness, measured from pulse wave velocity, is substantially increased in hypertension even independently of blood pressure levels. Structural vascular changes and endothelial dysfunction are consistently associated with vessel impairments in animal models of hypertension. Increased arterial stiffness has a major effect on pulse pressure (the difference between systolic and diastolic blood pressure), wave reflections, kidney function, and above all, cardiovascular risk. This increased cardiovascular risk is particularly deleterious in patients with hypertension and/or type 2 diabetes mellitus, who are at risk of both renal and cardiovascular events. In this Review, we discuss the importance of arterial stiffness in the diagnosis and management of hypertension and the need for new approaches for the treatment of hypertension in patients with or without diabetes and/or renal impairment. PMID- 29022572 TI - Pharmacotherapy: Aspirin discontinuation increases risk of cardiovascular events. PMID- 29022573 TI - Syphilis. PMID- 29022569 TI - Syphilis. AB - Treponema pallidum subspecies pallidum (T. pallidum) causes syphilis via sexual exposure or via vertical transmission during pregnancy. T. pallidum is renowned for its invasiveness and immune-evasiveness; its clinical manifestations result from local inflammatory responses to replicating spirochaetes and often imitate those of other diseases. The spirochaete has a long latent period during which individuals have no signs or symptoms but can remain infectious. Despite the availability of simple diagnostic tests and the effectiveness of treatment with a single dose of long-acting penicillin, syphilis is re-emerging as a global public health problem, particularly among men who have sex with men (MSM) in high-income and middle-income countries. Syphilis also causes several hundred thousand stillbirths and neonatal deaths every year in developing nations. Although several low-income countries have achieved WHO targets for the elimination of congenital syphilis, an alarming increase in the prevalence of syphilis in HIV infected MSM serves as a strong reminder of the tenacity of T. pallidum as a pathogen. Strong advocacy and community involvement are needed to ensure that syphilis is given a high priority on the global health agenda. More investment is needed in research on the interaction between HIV and syphilis in MSM as well as into improved diagnostics, a better test of cure, intensified public health measures and, ultimately, a vaccine. PMID- 29022571 TI - Epidemiology of cardiovascular disease in young individuals. AB - In the past 2 decades, a high prevalence of risk factors for cardiovascular disease, such as obesity, physical inactivity, and poor diet, has been observed among young individuals living in developed countries. The rate of substance abuse (opioids, cocaine, electronic cigarettes, and anabolic steroids) is also increasing among young adults, whereas cigarette smoking might be declining. Among younger individuals (aged 18-50 years), the incidence of cardiovascular diseases over the same time period has either been steady or has increased, in contrast to the trend towards a lower incidence of cardiovascular disease in adults aged >50 years. Current observations might, therefore, be used to forecast a potential epidemic of cardiovascular disease in the near future as the younger segment of the population ages. In this Review, we discuss the burden of risk factors for ischaemic heart disease, heart failure, atrial fibrillation, and sudden cardiac death among young adults aged 18-45 years. Furthermore, we discuss the prevalence, incidence, and temporal trends of various cardiovascular diseases among this young segment of the population. PMID- 29022574 TI - Osthole prevents acetaminophen-induced liver injury in mice. AB - Acetaminophen (APAP) overdose leads to severe hepatotoxicity. Osthole, a natural coumarin found in traditional Chinese medicinal herbs, has therapeutic potential in the treatment of various diseases. In this study, we investigated the effects of osthole against APAP-induced hepatotoxicity in mice. Mice were administered osthole (100 mg.kg-1.d-1, ip) for 3 d, then on the fourth day APAP (300 mg/kg, ip) was co-administered with osthole. The mice were euthanized post-APAP, their serum and livers were collected for analysis. Pretreatment with osthole significantly attenuated APAP-induced hepatocyte necrosis and the increases in ALT and AST activities. Compared with the mice treated with APAP alone, osthole pretreatment significantly reduced serum MDA levels and hepatic H2O2 levels, and improved liver GSH levels and the GSSG-to-GSH ratio. Meanwhile, osthole pretreatment markedly alleviated the APAP-induced up-regulation of inflammatory cytokines in the livers, and inhibited the expression of hepatic cytochrome P450 enzymes, but it increased the expression of hepatic UDP-glucuronosyltransferases (UGTs) and sulfotransferases (SULTs). Furthermore, osthole pretreatment reversed APAP-induced reduction of hepatic cAMP levels, but pretreatment with H89, a potent selective PKA inhibitor, failed to abolish the beneficial effect of osthole, whereas pretreatment with L-buthionine sulfoximine, a GSH synthesis inhibitor, abrogated the protective effects of osthole on APAP-induced liver injury, and abolished osthole-caused alterations in APAP-metabolizing enzymes. In cultured murine primary hepatocytes and Raw264.7 cells, however, osthole (40 MUmol/L) did not alleviate APAP-induced cell death, but it significantly suppressed APAP-caused elevation of inflammatory cytokines. Collectively, we have demonstrated that osthole exerts a preventive effect against APAP-induced hepatotoxicity by inhibiting the metabolic activation of APAP and enhancing its clearance through an antioxidation mechanism. PMID- 29022575 TI - Gefitinib inhibits M2-like polarization of tumor-associated macrophages in Lewis lung cancer by targeting the STAT6 signaling pathway. AB - M2-like polarized tumor-associated macrophages (TAMs) play a pivotal role in promoting cancer cell growth, invasion, metastasis and angiogenesis. The identification of M2-like TAMs during tumor progression is an attractive approach for cancer therapy. In this study, we investigated the relevance of macrophage polarization and the antitumor effect of gefitinib in Lewis Lung cancer (LLC) in vitro and in vivo. Gefitinib at a concentration below 2.5 MUmol/L did not cause significant growth inhibition on LLC and RAW 264.7 cell lines and bone marrow derived macrophage (BMDMs). However, a small concentration of gefitinib (0.62 MUmol/L) significantly inhibited IL-13-induced M2-like polarization of macrophages, evidenced by the decreased expression of the M2 surface markers CD206 and CD163, down-regulation of specific M2-marker genes (Mrc1, Ym1, Fizz1, Arg1, IL-10 and CCL2) as well as inhibition of M2-like macrophage-mediated invasion and migration of LLC cells. In RAW 264.7 cells, gefitinib inhibits IL-13 induced phosphorylation of STAT6, which was a crucial signaling pathway in macrophage M2-like polarization. In LLC mice metastasis model, oral administration of gefitinib (75 mg.kg-1.d-1, for 21 d) significantly reduced the number of lung metastasis nodules, down-regulated the expression of M2 marker genes and the percentages CD206+ and CD68+ macrophages in tumor tissues. These results demonstrated that gefitinib effectively inhibits M2-like polarization both in vitro and in vivo, revealing a novel potential mechanism for the chemopreventative effect of gefitinib. PMID- 29022577 TI - Human genomics: Cracking the regulatory code. PMID- 29022578 TI - Engineering: Liquid metal pumped at a record temperature. PMID- 29022576 TI - Xueshuantong injection (lyophilized) combined with salvianolate lyophilized injection protects against focal cerebral ischemia/reperfusion injury in rats through attenuation of oxidative stress. AB - Salvianolate lyophilized injection (SLI) and Xueshuantong injection (lyophilized) (XST) are two herbal standardized preparations that have been widely used in China for the treatment of acute cerebral infarction. In this study, we investigated the neuroprotective effects of SLI combined with XST in a rat model of middle cerebral artery occlusion-reperfusion (MCAO/R). Wistar rats were subjected to 1.5 h of MCAO followed by reperfusion for 3 h, then were treated with SLI or XST alone, or with their combinations via tail vein injection daily for 3 d. Edaravone (EDI, 6 mg.kg-1.d-1) was used as a positive control drug, We showed that administration of a combination of 1X1S (XST 100 mg.kg-1.d-1 plus SLI 21 mg.kg-1.d-1) more effectively protected the ischemic brains than SLI or XST used alone. Administration of 1X1S not only significantly decreased neurological deficit scores and infarct volumes and increased regional cerebral blood flow, but also inhibited the activation of both microglia and astrocytes in the hippocampus. Furthermore, administration of 1X1S significantly decreased the levels of MDA and ROS with concomitant increases in the levels of antioxidant activity (SOD, CAT and GSH) in the brain tissues as compared with SLI and XST used alone. Moreover, administration of 1X1S remarkably upregulated the expression of Nrf-2, HO-1 and NQO-1, and downregulated the expression of Keap1 and facilitated the nuclear translocation of Nrf-2 in the brain tissues as compared with XST used alone. Our study demonstrates that a combination of 1X1S effectively protects MCAO/R injury via suppressing oxidative stress and the Nrf 2/Keap1 pathway. PMID- 29022579 TI - Natural hazards: Risk assessments face legal scrutiny. PMID- 29022580 TI - Correction. PMID- 29022584 TI - Brain modelling: Does the brain control foraging? PMID- 29022585 TI - Cancer care: Tap latent source of frugal cancer ideas. PMID- 29022588 TI - Predatory journals: Research that isn't read doesn't exist. PMID- 29022590 TI - Pumping liquid metal at high temperatures up to 1,673 kelvin. AB - Heat is fundamental to power generation and many industrial processes, and is most useful at high temperatures because it can be converted more efficiently to other types of energy. However, efficient transportation, storage and conversion of heat at extreme temperatures (more than about 1,300 kelvin) is impractical for many applications. Liquid metals can be very effective media for transferring heat at high temperatures, but liquid-metal pumping has been limited by the corrosion of metal infrastructures. Here we demonstrate a ceramic, mechanical pump that can be used to continuously circulate liquid tin at temperatures of around 1,473-1,673 kelvin. Our approach to liquid-metal pumping is enabled by the use of ceramics for the mechanical and sealing components, but owing to the brittle nature of ceramics their use requires careful engineering. Our set-up enables effective heat transfer using a liquid at previously unattainable temperatures, and could be used for thermal storage and transport, electric power production, and chemical or materials processing. PMID- 29022594 TI - Countries: Avoid glib terms of development status. PMID- 29022581 TI - The impact of rare variation on gene expression across tissues. AB - Rare genetic variants are abundant in humans and are expected to contribute to individual disease risk. While genetic association studies have successfully identified common genetic variants associated with susceptibility, these studies are not practical for identifying rare variants. Efforts to distinguish pathogenic variants from benign rare variants have leveraged the genetic code to identify deleterious protein-coding alleles, but no analogous code exists for non coding variants. Therefore, ascertaining which rare variants have phenotypic effects remains a major challenge. Rare non-coding variants have been associated with extreme gene expression in studies using single tissues, but their effects across tissues are unknown. Here we identify gene expression outliers, or individuals showing extreme expression levels for a particular gene, across 44 human tissues by using combined analyses of whole genomes and multi-tissue RNA sequencing data from the Genotype-Tissue Expression (GTEx) project v6p release. We find that 58% of underexpression and 28% of overexpression outliers have nearby conserved rare variants compared to 8% of non-outliers. Additionally, we developed RIVER (RNA-informed variant effect on regulation), a Bayesian statistical model that incorporates expression data to predict a regulatory effect for rare variants with higher accuracy than models using genomic annotations alone. Overall, we demonstrate that rare variants contribute to large gene expression changes across tissues and provide an integrative method for interpretation of rare variants in individual genomes. PMID- 29022595 TI - Astronomy: Ring detected around a dwarf planet. PMID- 29022593 TI - The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation. AB - Haumea-one of the four known trans-Neptunian dwarf planets-is a very elongated and rapidly rotating body. In contrast to other dwarf planets, its size, shape, albedo and density are not well constrained. The Centaur Chariklo was the first body other than a giant planet known to have a ring system, and the Centaur Chiron was later found to possess something similar to Chariklo's rings. Here we report observations from multiple Earth-based observatories of Haumea passing in front of a distant star (a multi-chord stellar occultation). Secondary events observed around the main body of Haumea are consistent with the presence of a ring with an opacity of 0.5, width of 70 kilometres and radius of about 2,287 kilometres. The ring is coplanar with both Haumea's equator and the orbit of its satellite Hi'iaka. The radius of the ring places it close to the 3:1 mean-motion resonance with Haumea's spin period-that is, Haumea rotates three times on its axis in the time that a ring particle completes one revolution. The occultation by the main body provides an instantaneous elliptical projected shape with axes of about 1,704 kilometres and 1,138 kilometres. Combined with rotational light curves, the occultation constrains the three-dimensional orientation of Haumea and its triaxial shape, which is inconsistent with a homogeneous body in hydrostatic equilibrium. Haumea's largest axis is at least 2,322 kilometres, larger than previously thought, implying an upper limit for its density of 1,885 kilograms per cubic metre and a geometric albedo of 0.51, both smaller than previous estimates. In addition, this estimate of the density of Haumea is closer to that of Pluto than are previous estimates, in line with expectations. No global nitrogen- or methane-dominated atmosphere was detected. PMID- 29022596 TI - An ace in the hole for DNA sequencing. PMID- 29022589 TI - Dynamic landscape and regulation of RNA editing in mammals. AB - Adenosine-to-inosine (A-to-I) RNA editing is a conserved post-transcriptional mechanism mediated by ADAR enzymes that diversifies the transcriptome by altering selected nucleotides in RNA molecules. Although many editing sites have recently been discovered, the extent to which most sites are edited and how the editing is regulated in different biological contexts are not fully understood. Here we report dynamic spatiotemporal patterns and new regulators of RNA editing, discovered through an extensive profiling of A-to-I RNA editing in 8,551 human samples (representing 53 body sites from 552 individuals) from the Genotype Tissue Expression (GTEx) project and in hundreds of other primate and mouse samples. We show that editing levels in non-repetitive coding regions vary more between tissues than editing levels in repetitive regions. Globally, ADAR1 is the primary editor of repetitive sites and ADAR2 is the primary editor of non repetitive coding sites, whereas the catalytically inactive ADAR3 predominantly acts as an inhibitor of editing. Cross-species analysis of RNA editing in several tissues revealed that species, rather than tissue type, is the primary determinant of editing levels, suggesting stronger cis-directed regulation of RNA editing for most sites, although the small set of conserved coding sites is under stronger trans-regulation. In addition, we curated an extensive set of ADAR1 and ADAR2 targets and showed that many editing sites display distinct tissue-specific regulation by the ADAR enzymes in vivo. Further analysis of the GTEx data revealed several potential regulators of editing, such as AIMP2, which reduces editing in muscles by enhancing the degradation of the ADAR proteins. Collectively, our work provides insights into the complex cis- and trans regulation of A-to-I editing. PMID- 29022599 TI - Findings of Research Misconduct. PMID- 29022600 TI - A porous Ru nanomaterial as an efficient electrocatalyst for the hydrogen evolution reaction under acidic and neutral conditions. AB - A porous Ru nanomaterial exhibits high electrocatalytic performance and excellent durability for the hydrogen evolution reaction (HER) under both acidic and neutral conditions. It displays a low overpotential of 83 mV at a current density of 10 mA cm-2 and an excellent durability up to 12 h in 0.5 M H2SO4. PMID- 29022601 TI - Boron-nitrogen main chain analogues of polystyrene: poly(B-aryl)aminoboranes via catalytic dehydrocoupling. AB - The first high molar mass polyaminoboranes with an organic substituent at boron, namely the B-arylated polyaminoboranes [NH2-BHPh]n (2a) and [NH2-BH(p-CF3C6H4)]n (2b), have been prepared via catalytic dehydropolymerisation. These materials can be considered as inorganic analogues of polystyrene with a B-N main chain. Their synthesis was achieved from B-aryl amine-borane precursors in solution using an [IrH2(POCOP)] precatalyst. PMID- 29022602 TI - A novel CuZnInS quantum dot-based ECL sensing system for lysophosphatidic acid detection. AB - In this paper, a novel electrochemiluminescence (ECL) sensor for lysophosphatidic acid (LPA) detection was developed. LPA consists of a phosphate "head" group, a "linker" region illustrated by glycerol, and a fatty acyl chain as a lipophilic "tail". The water-soluble quaternary CuInZnS quantum dots (QDs) were modified with agmatine (AGM) molecules as an ECL luminophore. On the one hand, the guanidine groups on the QDs can capture the hydrophilic head of LPA with high selectivity. On the other hand, the electrochemically reduced graphene nanosheets (GNs) modified on the glassy carbon electrode (GCE) surface can bind the LPA lipophilic tail. As a result, the LPA-AGM-CuInZnS QDs were captured on the GNs/GCE. The ECL intensity of the system was enhanced with the increased concentration of LPA. As far as we know, it was the first report about LPA detection based on the ECL nanosensing system. The linear relationship range of LPA sensing is from 2 to 75 MUmol L-1. The practicability of this ECL sensing platform had shown satisfactory results in human serum samples. PMID- 29022604 TI - Assembly of high-symmetry silver(i) alkyl-1,3-diynyl cluster complexes via core transformation. AB - New tetranuclear supramolecular precursors [(R-C[triple bond, length as m-dash]C C[triple bond, length as m-dash]C)Ag(PPh3)]4 (R = iPr and chx) are employed to construct three polynuclear silver(i) alkyl-1,3-diynyl cluster complexes (1-3) that bear the same novel trigonal bipyramidal Ag5 core consolidated by silver ethynide and argentophilic interactions. The present results strongly suggest that the assembly of high-symmetry medium-nuclearity clusters 1-3 is initiated by the accretion of additional Ag(i) ions by the Ag4 template of the precursors through argentophilic (<3.4 A) interaction, and demonstrate that core transformation is an effective synthetic route to high-symmetry metal clusters. PMID- 29022603 TI - Poly(N-isopropylacrylamide) modified polydopamine as a temperature-responsive surface for cultivation and harvest of mesenchymal stem cells. AB - A thermo-responsive surface was fabricated by depositing poly(N isopropylacrylamide) (PNIPAAm) onto polydopamine coated cell culture substrata through free radical polymerization for the purpose of culturing and harvesting human mesenchymal stem cells (hMSCs). Human MSCs were cultured onto the PNIPAAm-g polydopamine coated surface and harvested by changing from physiological to ambient temperature. The produced PNIPAAm-g-polydopamine surface was characterized by atomic force microscopy, Fourier transform infrared spectroscopy, nuclear magnetic resonance, water contact angle measurement, differential scanning calorimetry, and cell culture studies. Our results revealed that hMSCs could be detached from the PNIPAAm-g-polydopamine surface within 60 min after switching the temperature from 37 degrees C to room temperature. The detached hMSCs were able to proliferate on the PNIPAAm-g-polydopamine coated surface for further growth and harvest. PMID- 29022605 TI - The promotion effects of thionation and isomerization on charge carrier mobility in naphthalene diimide crystals. AB - Herein, the promotion effects of thionation and isomerization on the carrier mobility properties of naphthalene diimide and thionated naphthalene diimide crystals were investigated in detail based on the Marcus-Hush theory and quantum chemical calculations. The thionation of NDIs will improve the charge mobility of both electrons and holes, which is similar to the thionation of PDIs. The compound P only behaves as an n-type organic semiconductor (OSC), whereas the three other thionation structures have higher mobility values and can behave as p type OSCs. For the cis/trans isomers of the two double-thionation structures, trans-S2 has a larger hole and electron carrier mobility than cis-S2; this is consistent with the experimental results obtained for cis-trans-isomers. A potential strategy for the development of high performance ambipolar OSCs is the substitution of O atoms by S atoms. These results will provide a guide for the design and optimization of OSCs via analysis of the relationship between carrier mobility and molecular crystal structures. PMID- 29022609 TI - High-resolution microstrip NMR detectors for subnanoliter samples. AB - We present the numerical optimization and experimental characterization of two microstrip-based nuclear magnetic resonance (NMR) detectors. The first detector, introduced in our previous work, was a flat wire detector with a strip resting on a substrate, and the second detector was created by adding a ground plane on top of the strip conductor, separated by a sample-carrying capillary and a thin layer of insulator. The dimensional parameters of the detectors were optimized using numerical simulations with regards to radio frequency (RF) sensitivity and homogeneity, with particular attention given to the effect of the ground plane. The influence of copper surface finish and substrate surface on the spectral resolution was investigated, and a resolution of 0.8-1.5 Hz was obtained on 1 nL deionized water depending on sample positioning. For 0.13 nmol sucrose (0.2 M in 0.63 nL H2O) encapsulated between two Fluorinert plugs, high RF homogeneity (A810 degrees /A90 degrees = 70-80%) and high sensitivity (expressed in the limit of detection nLODm = 0.73-1.21 nmol s1/2) were achieved, allowing for high performance 2D NMR spectroscopy of subnanoliter samples. PMID- 29022608 TI - The development of novel Au/CaO nanoribbons from bifunctional building block for biodiesel production. AB - Herein, a novel and facile high-yield strategy is reported to efficiently fabricate 1D self-supported Au/CaO nanocatalysts using dual metal co-ordination polymers as templates. Significantly, a uniform distribution of dual metal nanoparticles can be ensured due to the fact that both Ca2+ and Au3+ ions are initially introduced into the co-ordination polymer via chemical bonding with bifunctional organic linkers and then, the Au and CaO nanoparticles are formed simultaneously in one pot via calcination. Furthermore, the as-prepared Au/CaO nanoribbons exhibit excellent catalytic performance in the transesterification reaction, which can be attributed to the small size and high distribution of CaO nanoparticles as well as the special 1D structure with high surface area. Moreover, leaching and deactivation, which are the main problems of CaO-based catalysts, are remarkably reduced due to the presence of hydrophobic Au nanoparticles on the surface of the CaO nanoribbons. Consequently, the Au/CaO nanoribbons can be used as recyclable catalysts with high activity for biodiesel production. PMID- 29022606 TI - Zinc supplementation mitigates its dyshomeostasis in experimental diabetic rats by regulating the expression of zinc transporters and metallothionein. AB - Zinc depletion during diabetes projects a role for zinc nutrition in this condition. This study explored whether zinc supplementation annuls diabetes induced zinc dyshomeostasis through modulation of zinc transporters and metallothionein. Groups of hyperglycemic rats were exposed for six weeks to supplemental zinc (5 or 10-times the normal level). Intracellular zinc concentration and zinc transporter and metallothionein expression levels in different tissues were analysed. Depleted zinc concentrations in different organs were restored by zinc supplementation. Zinc ions cross biological membranes with the aid of membrane proteins, belonging to zinc transporter families - ZIPs (responsible for the influx) and ZnTs (responsible for intracellular traffic/efflux). Up-regulated expression levels of zinc efflux proteins and influx proteins were beneficially modulated by zinc treatment, which also induced metallothionein expression in tissues to mitigate oxidative stress. Thus, zinc supplementation has a significant benefit in controlling zinc fluxes during diabetes, exerted through a protective influence on the modulation of the expression of zinc transporters and metallothionein. PMID- 29022614 TI - Photochemical upconversion in water. AB - A major challenge remaining in photochemical upconversion lies in identifying appropriate chromophore combinations that function in pure water in the absence of hydrophobic hosts or surfactant additives. The current investigation achieves this goal using combinations of water soluble Ru(ii) metal-to-ligand charge transfer (MLCT) sensitizers in concert with 9-anthracenecarboxylate (AnCO2-) and 1-pyrenecarboxylate (PyCO2-) in neat H2O. PMID- 29022615 TI - Principles of mucin structure: implications for the rational design of cancer vaccines derived from MUC1-glycopeptides. AB - Cancer is currently one of the world's most serious public health problems. Significant efforts are being made to develop new strategies that can eradicate tumours selectively without detrimental effects to healthy cells. One promising approach is focused on the design of vaccines that contain partially glycosylated mucins in their formulation. Although some of these vaccines are in clinical trials, a lack of knowledge about the molecular basis that governs the antigen presentation, and the interactions between antigens and the elicited antibodies has limited their success thus far. This review focuses on the most significant milestones achieved to date in the conformational analysis of tumour-associated MUC1 derivatives both in solution and bound to antibodies. The effect that the carbohydrate scaffold has on the peptide backbone structure and the role of the sugar in molecular recognition by antibodies are emphasised. The outcomes summarised in this review may be a useful guide to develop new antigens for the design of cancer vaccines in the near future. PMID- 29022617 TI - Two titanium(iv)-oxo-clusters: synthesis, structures, characterization and recycling catalytic activity in the oxygenation of sulfides. AB - Two 5-sulfosalicylic acid (H3ssal) and 1,10-phenanthroline (Phen) substituted titanium-oxo-clusters, [Ti6O8 (Hssal)2(Phen)6(H2O)4].4OH.21H2O (TOC-1) and [Ti4O4(Hssal)4(Phen)4].18H2O.4NH3 (TOC-2), have been synthesized and fully characterized by single crystal X-ray diffraction, FT-IR spectroscopy, elemental analysis, thermogravimetric analysis and fluorescence analysis. The structure of TOC-1 is a hexanuclear cluster containing a {Ti6(MU2-O)8} core, where all titanium ions can be described in a distorted octahedral geometry with both 1,10 phenanthroline and 5-sulfosalicylate serving as chelating ligands, while TOC-2 consists of a tetranuclear {Ti4(MU2-O)4} skeleton forming an approximate plane quadrilateral where both 5-sulfosalicylate and 1,10-phenanthroline ligands chelate to the titanium atom and the oxygen atom bridges two titanium atoms. Moreover, catalytic activity for the selective oxidation of sulfides, methyl phenyl sulfide (MPS) and phenyl sulfide (PPS), has also been explored. The results showed that TOCs 1 and 2 exhibit excellent catalytic performance in the oxidation of sulfides to sulfoxides with H2O2 as an oxidant. In particular, TOC-1 is an efficient homogeneous catalyst and very interestingly it can be recovered by filtration upon cooling and then reused at least four times without losing activity, which is very rare in the oxygenation of organic sulfides. PMID- 29022618 TI - Enhancing the resolution of 1H and 13C solid-state NMR spectra by reduction of anisotropic bulk magnetic susceptibility broadening. AB - We demonstrate that natural isotopic abundance 2D heteronuclear correlation (HETCOR) solid-state NMR spectra can be used to significantly reduce or eliminate the broadening of 1H and 13C solid-state NMR spectra of organic solids due to anisotropic bulk magnetic susceptibility (ABMS). ABMS often manifests in solids with aromatic groups, such as active pharmaceutical ingredients (APIs), and inhomogeneously broadens the NMR peaks of all nuclei in the sample. Inhomogeneous peaks with full widths at half maximum (FWHM) of ~1 ppm typically result from ABMS broadening and the low spectral resolution impedes the analysis of solid state NMR spectra. ABMS broadening of solid-state NMR spectra has previously been eliminated using 2D multiple-quantum correlation experiments, or by performing NMR experiments on diluted materials or single crystals. However, these experiments are often infeasible due to their poor sensitivity and/or provide limited gains in resolution. 2D 1H-13C HETCOR experiments have previously been applied to reduce susceptibility broadening in paramagnetic solids and we show that this strategy can significantly reduce ABMS broadening in diamagnetic organic solids. Comparisons of 1D solid-state NMR spectra and 1H and 13C solid state NMR spectra obtained from 2D 1H-13C HETCOR NMR spectra show that the HETCOR spectrum directly increases resolution by a factor of 1.5 to 8. The direct gain in resolution is determined by the ratio of the inhomogeneous 13C/1H linewidth to the homogeneous 1H linewidth, with the former depending on the magnitude of the ABMS broadening and the strength of the applied field and the latter on the efficiency of homonuclear decoupling. The direct gains in resolution obtained using the 2D HETCOR experiments are better than that obtained by dilution. For solids with long proton longitudinal relaxation times, dynamic nuclear polarization (DNP) was applied to enhance sensitivity and enable the acquisition of 2D 1H-13C HETCOR NMR spectra. 2D 1H-13C HETCOR experiments were applied to resolve and partially assign the NMR signals of the form I and form II polymorphs of aspirin in a sample containing both forms. These findings have important implications for ultra-high field NMR experiments, optimization of decoupling schemes and assessment of the fundamental limits on the resolution of solid-state NMR spectra. PMID- 29022598 TI - Landscape of X chromosome inactivation across human tissues. AB - X chromosome inactivation (XCI) silences transcription from one of the two X chromosomes in female mammalian cells to balance expression dosage between XX females and XY males. XCI is, however, incomplete in humans: up to one-third of X chromosomal genes are expressed from both the active and inactive X chromosomes (Xa and Xi, respectively) in female cells, with the degree of 'escape' from inactivation varying between genes and individuals. The extent to which XCI is shared between cells and tissues remains poorly characterized, as does the degree to which incomplete XCI manifests as detectable sex differences in gene expression and phenotypic traits. Here we describe a systematic survey of XCI, integrating over 5,500 transcriptomes from 449 individuals spanning 29 tissues from GTEx (v6p release) and 940 single-cell transcriptomes, combined with genomic sequence data. We show that XCI at 683 X-chromosomal genes is generally uniform across human tissues, but identify examples of heterogeneity between tissues, individuals and cells. We show that incomplete XCI affects at least 23% of X chromosomal genes, identify seven genes that escape XCI with support from multiple lines of evidence and demonstrate that escape from XCI results in sex biases in gene expression, establishing incomplete XCI as a mechanism that is likely to introduce phenotypic diversity. Overall, this updated catalogue of XCI across human tissues helps to increase our understanding of the extent and impact of the incompleteness in the maintenance of XCI. PMID- 29022619 TI - Visible-light-mediated radical cascade reaction: synthesis of 3-bromocoumarins from alkynoates. AB - A visible-light-mediated radical addition of alkynoates to generate 3 bromocoumarins by using N-bromosuccinimide as the bromo source has been accomplished. This procedure provides a bromo radical addition/spirocyclization/ester migration cascade reaction under very mild reaction conditions without using any catalyst or strong oxidant and does not need high reaction temperature. Furthermore, the reaction can also be enlarged to the gram scale, and the product 3-bromocoumarins can be further applied in the synthesis of complex compounds. PMID- 29022597 TI - Genetic effects on gene expression across human tissues. AB - Characterization of the molecular function of the human genome and its variation across individuals is essential for identifying the cellular mechanisms that underlie human genetic traits and diseases. The Genotype-Tissue Expression (GTEx) project aims to characterize variation in gene expression levels across individuals and diverse tissues of the human body, many of which are not easily accessible. Here we describe genetic effects on gene expression levels across 44 human tissues. We find that local genetic variation affects gene expression levels for the majority of genes, and we further identify inter-chromosomal genetic effects for 93 genes and 112 loci. On the basis of the identified genetic effects, we characterize patterns of tissue specificity, compare local and distal effects, and evaluate the functional properties of the genetic effects. We also demonstrate that multi-tissue, multi-individual data can be used to identify genes and pathways affected by human disease-associated variation, enabling a mechanistic interpretation of gene regulation and the genetic basis of disease. PMID- 29022620 TI - Transferring mixtures of chemicals from sediment to a bioassay using silicone based passive sampling and dosing. AB - Environmental mixtures of chemicals consist of a countless number of compounds with unknown identity and quantity. Yet, chemical regulation is mainly built around the assessment of single chemicals. Existing frameworks for assessing the toxicity of mixtures require that both the chemical composition and quantity are known. Quantitative analyses of the chemical composition of environmental mixtures are however extremely challenging and resource-demanding. Bioassays may therefore serve as a useful approach for investigating the combined toxicity of environmental mixtures of chemicals in a cost-efficient and holistic manner. In this study, an unknown environmental mixture of bioavailable semi-hydrophobic to hydrophobic chemicals was sampled from a contaminated sediment in a coastal Baltic Sea area using silicone polydimethylsiloxane (PDMS) as an equilibrium passive sampler. The chemical mixture was transferred to a PDMS-based passive dosing system, and its applicability was demonstrated using green algae Tetraselmis suecica in a cell viability assay. The proportion of dead cells increased significantly with increasing exposure level and in a dose-response manner. At an ambient concentration, the proportion of dead cells in the population was nearly doubled compared to the control; however, the difference was non-significant due to high inter-replicate variability and a low number of replicates. The validation of the test system regarding equilibrium sampling, loading efficiency into the passive dosing polymer, stability of the mixture composition, and low algal mortality in control treatments demonstrates that combining equilibrium passive sampling and passive dosing is a promising tool for investigating the toxicity of bioavailable semi-hydrophobic and hydrophobic chemicals in complex environmental mixtures. PMID- 29022621 TI - Structural rationale for the chiral separation and migration order reversal of clenpenterol enantiomers in capillary electrophoresis using two different beta cyclodextrins. AB - NMR spectroscopy experiments, molecular dynamics simulations, and theoretical chemistry calculations provide insight into the structural and energetic determinants of the distinct binding of clenpenterol enantiomers to two cyclodextrins and the migration order reversal of their respective inclusion complexes in capillary electrophoresis. PMID- 29022622 TI - Energy storage properties and relaxor behavior of lead-free Ba1 xSm2x/3Zr0.15Ti0.85O3 ceramics. AB - Lead-free Ba1-xSm2x/3Zr0.15Ti0.85O3 (BSZT) ceramics were synthesized by a solid state reaction route. The microstructure, dielectric relaxor behavior and energy storage properties of BSZT ceramics were studied. The growth of grain size was suppressed with the increase of Sm addition and kept in the submicrometer scale. Successive substitution of Sm3+ for Ba2+ disrupted the long-range dipole and promoted the increase of polar nano-region (PNR) size, resulting in the enhanced degree of relaxor behavior. The increasing PNR size also lead to the slimmer hysteresis loops and improved the energy storage efficiency. Furthermore, high saturated polarization (Pmax) and low remnant polarization (Pr) were obtained due to the formation of defect dipoles, which facilitated the switch of PNRs and contributed to the enhancement of energy storage density. The x = 0.003 sample was found to exhibit a higher energy storage density of 1.15 J cm-3 and an energy storage efficiency of 92%. The result revealed that the BSZT ceramics may be a good candidate for energy storage application. PMID- 29022624 TI - Prediction of drug-pathway interaction pairs with a disease-combined LSA-PU-KNN method. AB - Prediction of new associations between drugs and targeting pathways can provide valuable clues for drug discovery & development. However, information integration and a class-imbalance problem are important challenges for available prediction methods. This paper proposes a prediction of potential associations between drugs and pathways based on a disease-related LSA-PU-KNN method. Firstly, we built a drug-disease-pathway network and combined the drug-disease and pathway-disease features obtained by different types of feature profiles. Then we applied a latent semantic analysis (LSA) method to perform dimension reduction by combining positive-unlabeled (PU) learning and k nearest neighbors (KNN) method. The experimental results showed that our method can achieve a higher AUC (the area under the ROC curve) and AUPR (the area under the PR curve) than other typical methods. Furthermore, some interesting drug-pathway interaction pairs were identified and validated. PMID- 29022628 TI - Diversity-driven and facile 1,3-dipolar cycloaddition to access dispirooxindole imidazolidine scaffolds. AB - A diversity-driven three-component 1,3-dipolar cycloaddition of isatins, amino acids and isatin-derived ketimines was developed to facilely assemble dispirooxindole-imidazolidine skeletons bearing vicinal quaternary carbon centers. This protocol features additive-free, minimal solvent usage (0.1 mL DMSO/0.2 mmol scale), wide substrate scope (34 examples), mild reaction conditions (room temperature) and high chemical yield (up to 99%). PMID- 29022630 TI - Evidence of single electron transfer from the enolate anion of an N,N' dialkyldiketopiperazine additive in BHAS coupling reactions. AB - A designed N,N'-dialkyldiketopiperazine (DKP) provides evidence for the role of DKP additives as initiators that act by electron transfer in base-induced homolytic aromatic substitution reactions, involving coupling of haloarenes to arenes. PMID- 29022631 TI - Pd-Catalyzed C-H arylation of pyridazine-based fused 1,2,4-triazoles: overriding selectivity at the usual position by undermining of preferred chelate formation. AB - The applicability of C-H functionalization to medicinally important 2-pyridyl based N-heterocycles suffers from severe challenges owing to the high Lewis basicity of the N-atom. This arrests catalytic activity and yields undesirable positional selectivity due to preferential chelate formation. In this regard, we report a novel palladium(ii)-catalyzed arylation strategy on multiple-N containing pyridazines by over-riding the functionalization due to a chelated palladacycle. We report a regioselective mono-arylation at the 8-position of diphenyl azolopyridazines without any ortho-C-H activation on the proximal phenyl groups. This methodology presents a broad arylation scope with uncompromised yield and positional selectivity, including the heteroarylation of N heterocycles, which is an unprecedented feat for these types of molecules. PMID- 29022633 TI - In-site encapsulating gold "nanowires" into hemin-coupled protein scaffolds through biomimetic assembly towards the nanocomposites with strong catalysis, electrocatalysis, and fluorescence properties. AB - An efficient and green biomimetic assembly protocol was developed for the fabrication of multifunctional nanocomposites by mimicking the configuration of natural protein enzymes. Bovine serum albumin (BSA) as the protein model was first split to produce the disassembled BSA (dBSA) of linear polymer and then coupled with catalytic Hemin (Hem). The yielded dBSA-Hem scaffolds were utilized to in-site encapsulate gold nanoclusters (AuNCs) through biominerization, yielding the dBSA-Hem-AuNCs. It was discovered that the nanocomposites could display the well-defined composition and spheric morphology. In particular, they could exhibit unexpectedly strong catalysis, electrocatalysis, and fluorescence properties, in which the biominerized AuNCs would act as fluorescence sources and "nanowires" for promoting the electron-transfer of the catalytic nanocomposites. Colorimetric investigations show that the developed enzyme mimics could present peroxidase-like catalysis activities comparable to natural horseradish peroxidase. In addition, they could facilitate the direct electrocatalysis for H2O2 at concentrations as low as 0.40 MUM. Moreover, strong red fluorescence of AuNCs in nanocomposites could be expected for the fluorimetric analysis of H2O2 with linear concentrations ranging from 50 nM to 100 MUM. Such a biomimetic assembly route may open a new door toward the preparation of diverse nanocomposites with multifunctional catalysis and fluorescence, thus promising extensive applications of catalysis and detection in the chemical, environmental, and biomedical fields. PMID- 29022634 TI - The anti-inflammatory effect of Agaricus brasiliensis is partly due to its linoleic acid content. AB - For hundreds of years mushrooms have been used as functional food for health. The basidiomycete Agaricus brasiliensis (A. brasiliensis) is famous for the medicinal properties of its beta glucans and of its antioxidants. Most researchers have studied polysaccharides from A. brasiliensis for their anti-inflammatory activity. However, active compounds from this mushroom have not yet been studied for the inactivation of NO inhibitory activity. The present study aimed to find the active compounds from A. brasiliensis for their NO inhibitory activity related inflammatory activity. This study found that linoleic acid isolated from A. brasiliensis inhibited NO production and suppressed the expression of pro inflammatory cytokines including TNF-alpha, IL-6, IL-1beta, and NOS2 in RAW 264.7 cells. Linoleic acid also suppressed the expression of NF-kappaB subunit p50 and restored PPARalpha. This leads to the conclusion that linoleic acid from A. brasiliensis could reduce NO production and inflammatory activity in RAW 264.7 cells by the inhibition of p50 and via the activation of PPARalpha. This study suggests that linoleic acid present in A. brasiliensis could play a role in the prevention of inflammatory diseases for which this edible mushroom is already known. PMID- 29022635 TI - Bronsted-base-catalyzed remote cascade reactivity of 2,4-dienones - asymmetric synthesis of tetrahydrothiophenes. AB - This study demonstrates that the remote cascade functionalization of 2,4-dienones can be realized by employing Bronsted base catalysis. The developed cascade involving 1,6-addition followed by the intramolecular aldol reaction provides a straightforward access to polysubstituted tetrahydrothiophene derivatives of biological and synthetic importance. Target products, bearing three contiguous stereocenters including one quaternary, have been obtained with excellent yields (up to 98%) and with good to high stereocontrol (>20 : 1 dr, up to 97 : 3 er) with the reaction cascade being promoted by a simple and readily available cinchona alkaloid cinchonine. PMID- 29022636 TI - The effect of anthocyanins from red wine and blackberry on the integrity of a keratinocyte model using ECIS. AB - There is a growing market demand for the incorporation of plant-derived ingredients into new products for the cosmetic industry. Anthocyanins are polyphenols arising from plant secondary metabolism that have been shown to possess many bioactive properties such as free radical scavenging, antimicrobial, and chemopreventive activities. In this work, the biological activities of red wine and blackberry anthocyanins were assessed by developing a new keratinocyte barrier model using the HaCat cell line and a microelectrode-based biosensor device, referred to as Electric Cell-Substrate Impedance Sensing (ECIS). Cells were seeded at the optimal cellular density of 1.6 * 106 cells per mL and the half-time was calculated to be 3.55 +/- 0.67 hours. The compounds' cytotoxicity was assessed and anthocyanin pigments showed no cytotoxicity towards keratinocyte cells. Wound healing assays were also performed using ECIS and it was observed that the tested pigments enhanced the healing rate of keratinocyte cells by reducing the healing time more than 50%. Cyanidin-3-glucoside presented the best results recovering 50% of the injured area in 1.48(+/-0.15) hours, followed by the blackberry anthocyanins (2.01 +/- 0.18 hours), malvidin-3-glucoside (2.03 +/- 0.09 hours) and red wine anthocyanins (2.36 +/- 0.76 hours). All presented significant differences from the control 4.91(+/-1.11) hours. PMID- 29022637 TI - Coupled swelling and nematic reordering in liquid crystal gels. AB - We derive a multiphysics model that accounts for network elasticity with spontaneous strains, swelling and nematic interactions in liquid crystal gels (LCGs). We discuss the coupling among the various physical mechanisms, with particular reference to the effects of nematic interactions on chemical equilibrium and that of swelling on the nematic-isotropic transition. Building upon this discussion and using numerical simulations, we explore the transient phenomena involving concurrent swelling and phase transition in LCGs subject to a temperature change. Specifically, we demonstrate separation in time scales between solvent uptake and phase change, in agreement with experiments, which determines a kinetic decoupling between shape and volume changes. Finally, we discuss possible applications in the context of microswimmers, where such a kinetic decoupling is exploited to achieve non-reciprocal actuation and net motion in Stokes flow. PMID- 29022638 TI - Preparation and RGB upconversion optic properties of transparent anti counterfeiting films. AB - Advanced anti-counterfeiting labels have aroused an intensive interest in packaging industry to avoid the serious issue of counterfeit. However, the preparation and cost of the existing labels associated with the drawbacks, including the complex and high-cost equipment, limit the protection of the authenticity of goods. Herein, we developed a series of anti-counterfeiting labels based on multicolor upconversion micro-particles (UCMPs) inks via straightforward and low-cost solutions, including spin-coating, stamping and screen printing. The UCMPs were synthesized through a facile hydrothermal process and displayed tunable red (R), green (G) and blue (B) color by doping different lanthanide ions, which are Er3+/Tm3+, Yb3+/Er3+ and Yb3+/Tm3+ in NaYF4 hosts, respectively. The optimal UCMPs inks were deposited on a flexible polyethylene terephthalate (PET) substrate to obtain transparent anti-counterfeiting labels possessing higher transmittance, stronger upconversion fluorescence intensity and good photostability. Under ambient conditions, the patterns and films were transparent, but could exhibit multicolor light under 980 nm laser excitation. They can be used as anti-counterfeiting labels for die-cutting packages to further elevate the security of goods. The tunable and designable transparent anti-counterfeiting labels based on RGB UCMPs inks exhibit the merits of low cost, easy-manufacture and versatility, underlying the practical application in the field of anti-counterfeiting. PMID- 29022639 TI - Glucose oxidase and polyacrylic acid based water swellable enzyme-polymer conjugates for promoting glucose detection. AB - Glucose oxidase (GOx) and polyacrylic acid (PAA) based water swellable non-toxic enzyme-polymer conjugate (PAA-GOx) was immobilized on a substrate consisting of graphene oxide (GO) and polyethyleneimine (PEI) (GO-PEI) and the electrochemical performances of the new catalyst were investigated. According to the measurements, although the amount of GOx immobilized on PAA-GOx was lower than that on glutaraldehyde (GA)-GOx, which is a conventionally used conjugate, its catalytic activity was 9.6 times higher than that of GA-GOx. The superior catalytic activity (102.0 MUA cm-2, 20 mM of glucose) and glucose sensitivity (6.9 MUA cm-2 mM-1) were due to its high swellability in water. Due to this, the PAA-GOx absorbs a large amount of aqueous glucose molecules and rapidly transfers them to the active site of GOx. Desirable hydrogen peroxide and glucose oxidation reactions are accordingly promoted. In addition, since PAA has abundant free carboxylic acid groups, the PAA-GOx forms covalent bonds with the GO-PEI to curtail the leaching-out of GOx molecules. PMID- 29022640 TI - Local conformational changes in the 8-17 deoxyribozyme core induced by activating and inactivating divalent metal ions. AB - The 8-17 deoxyribozyme (DNAzyme) is a catalytic DNA molecule capable of cleaving specific RNA substrates. The deoxyribozyme is activated by a wide variety of divalent metal ions, from Mg2+ to Pb2+, with just a few exceptions. It is not clear if metal ions are directly involved in catalysis, or are required to attain an active conformation, or both. In particular, the connection between metal induced global structural rearrangements and catalysis is not straightforward. To gain more information on the local structural changes induced by metal ions, we introduced fluorescent 2-aminopurine (2-Ap) residues at different positions of the 8-17 'core'. We found that a construct containing 2-Ap at position 15 was best suited to monitor conformational changes in the presence of Mg2+, Ca2+ or Mn2+. Binding of these activating metal ions caused a local rearrangement at position 15, apparently entailing decreased stacking of the 2-Ap base. The metal dependence for such conformational change was generally hyperbolic (suggesting it mirrored the binding by a single metal ion) and yielded apparent dissociation constants close to those required for activation. In contrast, Cu2+, a divalent metal ion which does not support catalysis, caused in the deoxyribozyme a slow, reversible inactivation, which correlated with a very distinct conformational change at position 15. PMID- 29022641 TI - Familial isolated pituitary adenomas (FIPA). Case report of four families and review of literature. AB - : Background The majority of pituitary adenomas are sporadic, but about 5% of them occur in a familial setting, predominantly in multiple endocrine neoplasia type 1 and Carney complex. Familial isolated pituitary adenomas (FIPA), unrelated to the syndromes mentioned above, were also described. The clinical course of FIPA differs significantly from sporadic cases, and is characterized by a larger tumor size, more aggressive course and younger patients' age at the moment of recognition. Objectives The aim of this retrospective study is to present 4 families in which two closely related people were diagnosed with pituitary adenomas. Probably these cases are clinical manifestations of FIPA. Material and methods Eight patients within four families, presenting with anterior pituitary tumors were described. The authors analyzed medical and family histories of the patients, their imaging pictures (pituitary MRI/CT) and hormonal tests. Results Family 1.: two sisters with acromegaly in the course of macroadenoma. Family 2.: two brothers with clinically nonsecreting macroadenomas. Family 3.: father and daughter with clinically nonsecreting macroadenomas. Family 4.: young man with acromegaly caused by macroadenoma and a daughter of his mother's sister with microprolactinoma. CONCLUSIONS: Familial isolated pituitary adenomas are more common than it was previously thought, therefore, specific questioning regarding family history should be a part of the workup of all patients with pituitary adenomas. Genetically induced pituitary tumors often have aggressive behavior in terms of tumor expansion and resistance to different treatment options and often involve a multidisciplinary approach that combines endocrine, neurosurgical, and radiological specialists. PMID- 29022642 TI - Induction of puberty with human chorionic gonadotropin (hCG) followed by reversal of hypogonadotropic hypogonadism in Kallmann syndrome. AB - INTRODUCTION: Kallmann syndrome (KS) is a rare, congenital disorder combining hypogonadotropic hypogonadism (HH) due to GnRH-deficiency with anosmia. Traditionally thought to require lifelong therapy it turns out to be a reversible condition in some patients. CASE REPORT: We present a case of a 22-year old man with absent puberty due to KS, in whom genetic testing revealed heterozygosity for a mutation in the PROK2 gene. Pubertal development and virilisation was achieved by using human chorionic gonadotropin (hCG) injections followed by testosterone replacement. During the follow-up we observed reversal of hypogonadism allowing discontinuation of testosterone treatment. Normalisation of testicular volume as well as gonadotropin and inhibin B levels through a 2-year postreversal period was seen. CONCLUSIONS: Treatment with hCG is effective in inducing pubertal development and may have advantage over testosterone replacement due to a potential of gonadal maturation. A regular assessment of testicular volume and biochemical surveillance including measuring of serum inhibin B and gonadotropins are necessary for a timely detection of reversal of GnRH deficiency. PMID- 29022643 TI - The efficiency of elastography in the diagnostics of follicular lesions and nodules with an unequivocal FNA result. AB - INTRODUCTION: The aim was to assess the usefulness of strain elastography (SEG) in the diagnostics of two groups of thyroid nodules (TNs): follicular lesions (FL) with low malignancy risk (< 20.0%) and low percentage of papillary carcinomas (PTCs) among cancers as well as TNs with unequivocal cytology (UC) and high percentage of PTCs among cancers. MATERIAL AND METHODS: 168 TNs were analysed and eventually surgically treated: 100 UC (50 benign and 50 malignant - 90.0% PTCs) and 68 FL (60 benign, 8 malignant - 50.0% PTCs). Elasticity score (ES) and strain ratio (SR) were evaluated, and their effectiveness was compared with the evaluation of the number of ultrasound malignancy risk features (NoUMRFs). RESULTS: In the UC group the evaluation of mean values of SR and ES in both sections (meanSR, meanES) was more efficient than NoUMRFs analysis (AUC: 0.903 and 0.869 vs. 0.754, p < 0.05). The following thresholds: meanSR >= 2.01, meanES >= 2.5, NoUMRFs >= 2, were related to the increased malignancy risk in nodules (OR: 45.0; 23.2; 5.4, respectively), but only meanSR >= 2.01 was an independent risk factor (OR: 20.3; SEN: 86.0%, SPC: 88.0%). In the FL group, only the evaluation of tSR (SR assessed in transverse section) had the value of AUC > 0.7, and only the set of features: tSR >= 1.7 and NoUMRFs >= 1 increased the malignancy risk in nodules (OR: 12.0; SEN: 75.0%, SPC: 75.0%). CONCLUSIONS: SEG is more reliable than conventional US in the diagnostics of TNs. The efficacy of SEG decreases with lowering percentage of PTCs among cancers. But in FL nodules SEG may support the selection of nodules for surgical treatment. PMID- 29022644 TI - Assessment of risk factors in metastatic/recurrent tall cell variant of papillary thyroid carcinoma. AB - INTRODUCTION: Papillary thyroid carcinoma (PTC) is the most common malignant thyroid tumor. A great majority of the cases live a disease-free life with quite favorable prognosis. There are lots of variants of PTC and a few of them exhibit aggressive behaviour. Typical example is the tall cell variant (TCV). Patients experience a greater incidence of recurrence, nodal and extranodal metastases, tumor associated mortality than other variants of PTC. Studies related to TCV almost always compared it with its patient population of PTC according to risk factors and clinicopathologic features. The aim of this study is to evaluate the risk factors in metastatic/recurrent TCV. MATERIALS AND METHODS: This is a retrospective cohort study of 1813 patients with differentiated thyroid carcinoma treated with radioiodine between 1992 and 2011. 56 of these patients are TCV. 34 of them developed metastasis/recurrence and 22 lived a disease-free life during the 23-year follow-up. We evaluated the risk factors in these metastatic and nonmetastatic subgroups. RESULTS: We found tumor size, preablation thyroglobulin level, vascular invasion, preablation central and lateral cervical lymph node metastasis, preablation lung metastasis and stage independent risk factors. However age, preablation thyroglobulin level and stage appeared together as striking factors impacting metastasis in multivariate analysis. CONCLUSION: Higher ablation doses up to 250-300 mCi should be administered to TCV patients having advanced stage (III,IV), pretty high preablation thyroglobulin level (over 400 ng/ml) and older age (over 52 years) especially with large tumor size (over 3.5 cm) and initial cervical lymph node metastasis. PMID- 29022645 TI - The significance of TRIP11 and T3 signalling pathway in renal cancer progression and survival of patients. AB - INTRODUCTION: TRIP11 is a multifunctional protein localizing either to Golgi apparatus, acting as a golgin, or in the nucleus, acting as coactivator of transcription mediated by thyroid hormone receptor (THR) and hypoxia induced factor (HIF). Triiodothyronine (T3) regulates nuclear localization of TRIP11 by inducing its phosphorylation. The exact mechanism of this regulation unknown. The expressions of THR and HIF are disturbed in various cancers, including renal cell cancer (RCC). In this study we aimed to analyze: 1) the mechanism of T3-dependent subcellular localization of TRIP11; 2) the significance of TRIP11 and T3 signaling pathway in RCC progression. MATERIAL AND METHODS: TRIP11 subcellular localization was analyzed using immunocytochemistry in RCC-derived cell line treated with T3, T3-agarose and PI3K inhibitor, wortmannin. The expressions of TRIP11 and genes involved in T3 signaling and hypoxia were investigated using qPRC in 36 pairs of RCC tumor-control samples, followed by validation/survival analysis in an independent cohort of >450 renal cancer patients. RESULTS: Wortmannin disrupted T3-dependent nuclear transport of TRIP11. T3-agarose did not change TRIP11 localization, precluding extracellular T3-mediated mechanism. The expressions of TRIP11, HIF-1beta, THRA, THRB, FURIN, VEGFA, and GLUT1 were disturbed in renal cancer. Expressions of TRIP11 and HIF-1beta correlated with tumor grades. Decreased expressions of TRIP11, THRA, and THRB correlated with poor survival of RCC patients. CONCLUSIONS: 1) T3 induces nuclear TRIP11 localization via PI3K-dependent mechanism; 2) disturbed expression of T3 signaling pathway genes correlates with RCC progression. The specific mechanisms by which altered T3 signaling may contribute to RCC progression require further investigation. PMID- 29022646 TI - Low skeletal mass is an important predictor of osteoporosis in HIV-infected men in India. AB - INTRODUCTION: This study evaluated prevalence and predictors of osteoporosis and sarcopenia in men with HIV. MATERIAL AND METHODS: 220 men with HIV were screened, of which 115 men, 30-50 years-age, having at least 1-year follow-up, underwent hormonal and DEXA analysis. 40 controls were also evaluated. RESULTS: Males with HIV had significantly lower BMD and Z-scores at all sites. Osteoporosis was diagnosed in 64.35%; commonest site being radius total (49.56%), followed by radius 33% (45.21%), radius ultra distal (36.52%), lumbar spine (19.13%), neck of femur (17.39%), total femur and greater trochanter (7.82% each). HIV patients had significantly lower fat mass (FM), lean mass (LM), total fat percent, bone mineral content, gynoid fat, percent skeletal muscle mass (PSMM). Men with osteoporosis had higher use of anti retroviral therapy (ART), immune reconstitution inflammatory syndrome (IRIS), tuberculosis, lower FM, LM and PSMM. Logistic regression revealed PSMM, age and delta (Delta) CD4 count (change in CD4 count after 6-12 months of ART, compared to pre-ART) were best predictors of osteoporosis. Greater PSMM was associated with decreased osteoporosis, without adjusting for any variable (Model-1), adjusting for disease duration, tuberculosis and IRIS (Model-2), and model-2 plus gonadotropins and sex steroids (Model-3). Greater DeltaCD4 count and age were associated with increased osteoporosis after adjusting for different models. Sarcopenia was observed in 40% men and none in controls. CONCLUSIONS: Men with decreased skeletal mass, age, severe immune dysfunction at diagnosis, having rapid increase in CD4 count following ART and IRIS have higher risk of osteoporosis in the long run. PMID- 29022647 TI - Use of metformin is associated with lower incidence of cancer in patients with type 2 diabetes. AB - INTRODUCTION: The objective of the study was to assess the influence of metformin on the prevalence of cancer and risk factors for the development of cancer, in patients with type 2 diabetes. MATERIALS AND METHODS: A total of 1063 patients, treated between October 2012 and March 2013 in the Diabetes and Endocrinology Centre in Bydgoszcz, were enrolled in the study. Only patients who were first diagnosed with diabetes and consecutively with cancer were included in the analysis. The final dataset compromised data from 1028 patients with type 2 diabetes, in whom retrospective analysis of the association between the occurrence of cancer and treatment with or without metformin was performed. Demographic data, medical history, physical assessment, diabetes history, diabetes complications, concomitant medication, and additional examination results were compared between two groups: those with cancer and those without cancer. Data were analysed using Student's t-test, Chi-square test with Yates' continuity correction, and multiple logistic regression. RESULTS: The most commonly observed cancer was breast cancer (24 patients; 22.5%), followed by uterine cancer (15 patients; 13.6%). Of the 75 diabetic patients with a cancer diagnosis, 18.7% were treated with metformin; of the 953 patients without cancer, 38% received metformin. Analysis of probability of cancer occurrence using Kaplan Meier curves showed that the probability of cancer development was higher in groups of patients who were not treated with metformin (p = 0.006). CONCLUSIONS: Metformin treatment reduces the risk of cancer in type 2 diabetes patients. PMID- 29022648 TI - Probiotics for experimental obesity prevention: focus on strain dependence and viability of composition. AB - INTRODUCTION: a comparative animal study of the efficacy of intermittent short course administration of lyophilised single-, three-, and live multistrain probiotic on obesity. METHODS: We included 70 rats divided into seven groups (n = 10 in each). Rats of group I were intact. Newborn rats of groups II-VII were injected with monosodium glutamate (MSG) (4 mg/g). Rats of group II (MSG-obesity group) were untreated. The group III-V received lyophilised monoprobiotics B. animalis VKL, B. animalis VKB, and L. casei IMVB-7280, respectively. Group VI received the mix of these three probiotic strains. Group VII was treated with multiprobiotic "Symbiter", which contains 14 live probiotic strains (Lactobacillus, Bifi-dobacterium, Propionibacterium, Acetobacter genera). RESULTS: Neonatal treatment with MSG caused stunted growth, which is why, despite the lack of weight gain dynamics and absence of significant food consumption rate and body weight changes at day 120, we noted the development of obesity in all MSG-obesity rats and in up to 20-70% after probiotic administration. Supplementation of probiotic composition, with preference to live strains, led to a significantly lower prevalence of obesity, and reduction of VAT weight and serum lipid levels as compared to single-strain probiotic. In our comparative single-strain analysis a trend towards more pronounced hypolipidaemic effect and VAT weight reduction was observed for lyophilised L. casei IMVB-7280 as compared to B. animalis VKL and VKB strains. CONCLUSIONS: Multistrain formed mutualistic interactions in mixtures and therefore able to share with different metabolites, affect differ-ent receptors and produced various of biologically active compounds which synergistic overall effect greater than the sum of the single effects. PMID- 29022649 TI - The quality of semen among a sample of young, healthy men from Lower Silesia (AndroLS). AB - INTRODUCTION: Contrary to other parts of the continent, little information is available regarding semen quality among subjects from central and eastern Europe. MATERIAL AND METHODS: We evaluated semen profiles among a sample of men from an industrialised region of Poland. We directly invited 5000 healthy inhabitants of the region (aged 18-35 years; with unchecked fecundity) to participate in the study. Among the 500 who were eligible and willing to participate, we acquired detailed information and semen and blood samples from 177 subjects. RESULTS: Semen volume, sperm concentration, and total sperm count were, respectively, (mean +/- SD): 3.1 +/- 1.5 ml, 60 +/- 44 x 106/ml and 170 +/- 137 x 106/ml. Percentage of normal forms was 14.7 +/- 6.5%. CONCLUSIONS: Due to the relatively low sperm motility (mean +/- SD: 54 +/- 16%) and vitality (mean +/- SD: 60 +/- 15%) values, these variables require special attention during routine evaluations. The WHO 2010 criteria for these two parameters were met in only 60% and 66% of the samples, respectively. Further studies on men with different educational levels, social environments, or living conditions are needed to confirm our results. PMID- 29022650 TI - Sleep-related breathing disorders in patients with Prader-Willi syndrome depending on the period of growth hormone treatment. AB - INTRODUCTION: Sleep-related breathing disorders (SRBD) are commonly present in patients with Prader-Willi syndrome (PWS). Recombinant human growth hormone (rhGH) treatment is reported to improve breathing function in PWS, but the findings are not explicit. MATERIAL AND METHODS: Screening polysomnography- polygraphy (PSG), assessing nasal respiratory flow, respiratory effort, and blood oxygen saturation, was used. Group 1 - before rhGH therapy (n = 11, mean age 3.0 years); PSG was repeated after the start of rhGH therapy in a mean time of 0.9 years in six patients (Group 1a). Group 2 - on rhGH treatment, for a mean time of four years (n = 17, mean age 8.8 years). Group 3 - without rhGH therapy due to severe obesity (n = 8, mean age 13.1 years). RESULTS: Group 1 - mean apnoea hypopnoea index (AHI) was 10.2, oxygen desaturation index (ODI)- 36.3, Group 1a- AHI 12.0, ODI 60.9, Group 2-AHI 9.0, ODI 25.1, Group 3- AHI 8.2, ODI 22.0. ODI was significantly higher in Group 1a than in the other groups (p < 0.005), but not strictly related to SRBD. The results in Group 2 did not differ significantly from those of Group 1. CONCLUSIONS: Our study proves the high frequency of SRBD among PWS patients, with worsening of ODI after short-term rhGH therapy. PMID- 29022653 TI - Dr Dodds Replies. Benzodiazepines Do Not Cause Suicide or Suicide Attempts PMID- 29022652 TI - Benzodiazepines Do Not Cause Suicide or Suicide Attempts. PMID- 29022654 TI - Epidemiology, Prevention, and Assessment of Tardive Dyskinesia and Advances in Treatment. AB - Tardive dyskinesia (TD) is a disorder characterized by involuntary movements, typically of the orofacial muscles and also of the extremities and other muscle groups. The condition is associated with exposure to dopamine receptor blocking agents, including antipsychotics. Because the indications and off-label uses for these agents have expanded over the last 2 decades, a larger number of patients are receiving antipsychotic medications than in the past. While evidence suggests that patients being treated with second-generation antipsychotics have less risk for developing TD than those treated with first-generation antipsychotics, the decreased risk is not as great as was originally expected. In addition, patients with chronic psychiatric conditions often require long-term use of antipsychotics, putting them at risk for TD. This article addresses the prevalence, risk factors, and prevention of TD; assessment strategies including diagnostic criteria and rating scales; and evidence for TD treatments, including 2 newly approved medications: deutetrabenazine and valbenazine. . PMID- 29022656 TI - ? PMID- 29022657 TI - [Shortening the antibiotherapy is in progress: get up to date!] AB - In a world where the emergence of resistant bacteria threatens the future use of many antibiotics, it is now critical to prescribe antibiotics carefully in order to minimize selective pressure. Limiting treatment duration would be one of the strategies to achieve this goal. Recent studies state that a reduction of the course of treatment is showing great benefit with no outcome difference. PMID- 29022655 TI - Anosognosia Is an Independent Predictor of Conversion From Mild Cognitive Impairment to Alzheimer's Disease and Is Associated With Reduced Brain Metabolism. AB - OBJECTIVE: Anosognosia, or impaired illness awareness, is a common feature of Alzheimer's disease (AD) and less so of mild cognitive impairment (MCI). Importantly, anosognosia negatively influences clinical outcomes for patients and their caregivers and may predict the conversion from MCI to AD. This study aimed to examine (1) the relationship between brain glucose metabolism as measured by fluorine-18 fluorodeoxyglucose positron emission tomography (FDG-PET) and anosognosia in patients with MCI and AD and (2) the predictive utility of anosognosia in patients with MCI for later conversion to AD, even when controlling for other factors, including gender, education, apolipoprotein E epsilon4 carrier status, dementia severity, and cognitive dysfunction. METHODS: Data for 1,062 participants from the Alzheimer's Disease Neuroimaging Initiative database (2003 to August 2015) classified as having AD (n = 191) or MCI (n = 499) or as healthy comparison (HC) subjects (n = 372) were analyzed. HC participants had Mini-Mental State Examination (MMSE) scores from 24 to 30 and a Clinical Dementia Rating (CDR) of 0. MCI participants had MMSE scores from 24 to 30, a memory complaint, objective memory loss, a CDR of 0.5, absence of significant levels of impairment in other cognitive domains, and essentially preserved activities of daily living. AD participants had MMSE scores <= 26 and a CDR of >= 0.5, and met National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association criteria for probable AD. Anosognosia was measured with the composite discrepancy score of the study partner and participants' scores on the Everyday Cognition scale (ECog). Bivariate correlations and multiple regression analyses were performed to assess the relationship between anosognosia and FDG-PET findings in each group. Lastly, logistic regression and receiver operating characteristic curve analyses were performed in the MCI sample to determine if anosognosia was predictive of conversion from MCI to AD. RESULTS: Hypometabolism was independently associated with anosognosia in AD, particularly in the posterior cingulate cortex and right angular gyrus. Anosognosia was associated with conversion from MCI to AD within 5 years (OR = 2.74 [95% CI, 1.95 to 3.85], chi21 = 33.65, P < .001), even after including covariates (OR = 1.64 [95% CI, 1.12 to 2.40], chi21 = 6.43, P = .011). ECog-composite scores <= -0.75 were 93% sensitive and 15% specific for conversion from MCI to AD. CONCLUSIONS: Anosognosia in AD is related to brain glucose hypometabolism. Further, anosognosia independently predicts conversion from MCI to AD. The absence of anosognosia may be clinically useful to identify those patients that are unlikely to convert from MCI to AD. PMID- 29022658 TI - [Legionellosis]. AB - Legionellosis refers to the two clinical syndromes caused by Legionella : Pontiac fever, a benign febrile illness and Legionnaires'disease (or pneumonia). Clinically and radiologically, Legionnaires'disease presents itself as a " typical " pneumonia caused by Streptococcus pneumonia. Diagnosis is usually made by using urinary antigen testing. Culture and PCR are also helpful. Legionella is resistant to betalactam antibiotics, and is treated by quinolones or macrolides. PMID- 29022659 TI - [Listeria monocytogenes infections]. AB - Listeria monocytogenes infections are caused by food ingestion. They are not only transmitted by animal products, but also by secondarily contaminated fruits and vegetables. They preferentially affect pregnant women, patients of extreme ages and the immu-nocompromised, and manifest as a gastroenteritis, bacteremia, meningo-encephalitis or maternal-fetal infection. Diagnosis is achieved by culture of usually sterile sites. The preferred treatment is amoxicillin with or without gentamicin. For patients at risk, prevention is based on avoiding at-risk food or cooking it when possible. PMID- 29022660 TI - [Food-borne trematodiases]. AB - Food-borne trematodiases (flukes) are transmitted through the consumption of contaminated undercooked aquatic food. Infections are most prevalent in Southeast Asia and Latin America, but might occur anywhere due to food trade, international travel, human migration. Clinical manifestations are hepatobiliary, intestinal, and pleuropulmonary. The worse complication is development of cholangiocarcinoma. Efficacious drug therapy are available, however prevention control measures are essential to avoid transmission. Since 2015, trematodiases are included in the WHO program implemented to fight neglected tropical diseases. PMID- 29022661 TI - [Candida in urine: colonization ? Infection ? When and how to treat ?] AB - Candida is frequently found in urine cultures. Deciding whether this represents simple colonization or true infection is often difficult since Candida is a normal genital and urinary tract commensal. Urinary tract colonization is facilitated by well identified risk factors. The diagnostic of a true infection relies upon the identification of the usual clinical signs which cannot be attributed to another pathogen ; also, plasma level of beta-D-glucan can contribute to confirm the diagnostic. Treatment success depends upon the possibility to correct the risk factors and appropriate anti-fungal therapy according to in vitro susceptibility testing. PMID- 29022662 TI - [Infectious diseases as you have never read them]. AB - Infectious diseases is known as a serious medical discipline. Nevertheless some experiences related by patients and unusual studies can bring a smile on your face. In this article, you will find a sample of rare and original studies in this field, extracted from a collection of comical published medical articles. PMID- 29022663 TI - ? PMID- 29022664 TI - ? PMID- 29022665 TI - ? PMID- 29022666 TI - ? PMID- 29022667 TI - ? PMID- 29022668 TI - ? AB - This erratum corrects information regarding golimumab in table 6 for article [Management of ulcerative colitis in 2017], PMID: 28853805. PMID- 29022669 TI - ? PMID- 29022670 TI - ? PMID- 29022671 TI - Air Pollution and Mortality in the Medicare Population. PMID- 29022672 TI - Air Pollution and Mortality in the Medicare Population. PMID- 29022673 TI - CD55 Deficiency and Protein-Losing Enteropathy. PMID- 29022674 TI - Public Health Crisis: the Need for Primary Prevention in Failed and Fragile States. AB - OBJECTIVE: A new 'normal' in global affairs may be erupting from large global powers to that of non-state actors and proxies committing violence through scaled conflict in a post-Westphalian world generating significant global health policy challenges. Health security of populations are multifactorial and indirectly proportional to war, conflict and disaster. Preventing conflict and avoiding the health vacuum that occurs in war and violence may be best practices for policy makers. This paper considers an approach of applying clinical primary prevention principles to global health policy. METHODS: Brief policy review of current standards and practices in health security in fragile and failed states and prevention; and definitions discussion. A short case study series are presented with best practices, with risk and outcome review. RESULTS: The global balance of power and order may be shifting through geopolitical transference and inadequate action by major global power brokers. Health security in at risk nation-states may be decreasing as a result. CONCLUSION: Small scale conflict with large-scale violence threatens health security and may experience increased incidence and prevalence in fragile and failed states. Preventative policy to resuscitate fragile and failed states and prevent further external and internal shocks may support health and promote a positive feedback loop of further state stability and increased health security. Public health policy shift to mitigate state failure and public health crisis in war and conflict through the basis of primary prevention may provide best practices and maximize health security for at risk populations. PMID- 29022675 TI - The Czech Republic and Slovakia in Terms of Mortality from Malignant Neoplasms: Similar or Opposite Tendencies? AB - In Europe, a steady mortality decline has been observed from the 1950s, however, Central and Eastern Europe underwent a period of stagnation or even worsening from the 1960s to 1980s. Since that time an evident mortality decline could be observed in that part of Europe too. Within the post-communist countries, mortality development has been most favourable in Slovenia, the Czech Republic and Slovakia. The aim of this study is to describe the latest development of cancer mortality in two selected countries - the Czech Republic and Slovakia. These two countries have much in common, including many similar long term trends in demographic or social indicators' development. The study evaluates whether cancer mortality development differs in the two countries or rather follows a similar trend. From the presented results it is clear that the development apparently differs namely according to sex. The results according to selected particular causes of death (from the group of malignant neoplasms) are presented as well. It could be assumed that many aspects could be improved by prevention programmes or screening. PMID- 29022676 TI - Vitamin D Deficiency in Acute Coronary Syndrome - Clinically Relevant or Incidental Finding? AB - OBJECTIVE: Vitamin D deficiency has been associated with cardiovascular disease. The aim of this study was to determine serum concentration of 25 hydroxyvitamin D (25(OH)D) in patients with acute coronary syndrome (ACS) and to assess the prognostic role of serum vitamin D level in ACS patients during 3-year follow up. METHODS: The study included 60 ACS patients hospitalized at cardiology department for ACS between March 2012 and October 2012, and 60 age- and sex-matched control patients without ACS. Standard laboratory testing and vitamin D determination were performed in all study patients. In addition, ACS patients underwent coronarography and were followed-up for 36 months of ACS for major adverse cardiac events (MACE). RESULTS: Patients with ACS had a statistically significantly lower mean 25(OH)D level as compared with control group (35.19 nmol/L vs. 58.08 nmol/L, p<0.001). The lowest mean level of 25(OH)D was recorded in diabetic patients with ACS (30.45 nmol/L). ACS patients were divided into three subgroups according to coronarography findings: single vessel, double vessel and triple vessel coronary artery disease (CAD) with respective serum levels of 25(OH)D of 36.44 nmol/L, 33.65 nmol/L and 31.70 nmol/L. During 36-month follow up, the event-free survival rate was 60% in the ACS group. The ACS patients having sustained MACE during follow up had low serum level of 25(OH)D in the acute phase; however, the difference from ACS patients without MACE during follow up did not reach statistical significance (32.64 nmol/L vs. 37.01 nmol/L). CONCLUSIONS: Patients with ACS have low vitamin D level, which is lowest in diabetic patients with ACS. However, during 3-year follow up, vitamin D failed to prove useful as a prognostic biomarker in ACS patients. PMID- 29022677 TI - Alcohol Consumption in Population Aged 25-65 Years Living in the Metropolis of South Moravia, Czech Republic. AB - OBJECTIVE: The aim of the study was to evaluate alcohol consumption in a representative sample of the population of the city of Brno, as part of research on cardiovascular risk factors. METHODS: Cross-sectional survey on a sample of 2,160 randomly selected residents 35-65 years old was carried out. For the invited volunteers who became a part of the investigation, alcohol consumption was determined in a controlled, face to face interview structured in accordance with a special questionnaire form. The frequency of alcohol consumption during the previous year was determined, in more detail during the last month (including quantification using "units of alcohol", their normal and maximum level of drinking, and any association between alcohol consumption and meals), and during the last week in the form of a complete, beverage specified and quantified 7-day recall period. Typical patterns of alcohol consumption were explored by the means of cluster analysis. RESULTS: During the past 12 months, 90.0% of the men and 79.0% of the women had consumed alcohol, the rest can be considered abstinent. The most commonly reported frequency was 2-4 times per week (35.6% of the men), or 1-3 times per month (22.8% of the women). Daily or almost daily consumption was reported by 24.8% of the men and 12.8% of the women. The number of units of alcohol consumed usually on one occasion amounts to an average of 3.88+/-4.80 for the men and 2.25+/-1.39 for the women, but the amount most often cited by both sexes was 2 drinks (36.4% of the men and 40.4% of the women). The largest amount consumed on any occasion during the last 30 days was 5 or more units in 69.3% of the men, and in 33.9% of the women it was 4 or more units (this amount of alcohol leads to a blood alcohol concentration (BAC) of 0.08, the border of drunkenness). In 19.9% of the men and 7.5% of the women, this border was exceeded more than 5 times in the past month. Only 14.7% of the men and 10.3% of the women reported that the majority of their alcohol consumption occurs with food; on the contrary, 64.3% of the men and 77.6% of the women drinkers drink it either always without food or only rarely with it. During the past week, 81.6% of the men and 63.4% of the women drank alcohol (p<0.001, chi-square). The average value of consumption for one man was 11.57+/-11.91 doses, and for one woman 4.68+/-6.38 doses per week (p<0.001, t-test). A total of 17.8% of the men exceeded the limit of 21 doses per week, and 7.4% of the women exceeded 14 doses/week. After converting the weekly consumption into the number of units of alcohol per week expressed in litres per year, the total average consumption was 5.01+/-6.36 litres; for the men 7.26+/ 7.62 litres and for the women 3.02+/-4.08 litres of pure alcohol per person annually. Consumption during the week was not uniform (p<0.001, ANOVA), with the highest occurring on Saturday, followed by Friday. The men mostly drank beer (62.9% of the total volume of alcohol), the women wine (68.6%). The cluster analysis identified 5 clusters of respondents, based on a set of alcohol consumption variables, as follows: very heavy drinking (1.6% of the respondents who drink alcohol); heavy drinking (8.8%); binge drinking (6.3%); moderate drinking (31.1%); and occasional drinking (52.3%). CONCLUSIONS: The results show a relatively high consumption of alcohol in the examined group. The recommended weekly limits were exceeded by only a small portion, but that consumption had a binge character. Conversion into a form allowing comparison with conventional national statistics shows a significantly lower consumption than these reported statements. Overall, men consume significantly more alcohol than women. PMID- 29022678 TI - Exposure to Psychoactive Compounds amongst Students of Medical University. AB - OBJECTIVE: The aim of this study was to assess the frequency of exposure to psychoactive compounds amongst students of the Medical University of Bialystok. METHOD: This cross-sectional study included 504 students selected by means of stratified sampling based on the university faculty, study discipline and year, and participant's gender. RESULTS: Nearly three fourths of our respondents have contact with their student colleagues who use psychoactive compounds, or have heard that such individuals exist. Approximately one fourth of the students declared that they considered using psychoactive compounds at least once. Marijuana and hashish were the psychoactive compounds our respondents used most frequently. Median age of the first contact with these substances was 18 years. Alarmingly high fraction of respondents declared that most of psychoactive compounds included in the study is easily available and obtaining them would not take them longer than one day. Furthermore, 15% of respondents admitted to being involved in the distribution of psychoactive compounds. CONCLUSION: The exposure of medical university students to psychoactive compounds represents similar problem as in their peers studying other disciplines. However, in view of its specific consequences (including potential threat to patients' health and life), the problem should not be underestimated. PMID- 29022679 TI - Brand Awareness and Access to Cigarettes among Children 8-12 Years Old in the Czech Republic. AB - OBJECTIVE: The aim of the study is to assess smoking behaviour, knowledge of cigarette brands and access to cigarettes among children 8-12 years old in the Czech Republic. METHOD: Between 2009 and 2012, a cross sectional survey was conducted among 4,439 children aged 8-12 years attending 51 primary schools in Prague and Central Bohemia, Czech Republic. Data including age, gender, ever smoking, parental and sibling smoking, knowledge of cigarette brands, sources of cigarettes, and smoking frequency were collected. RESULTS: Fifty nine percent of all children could name one or more cigarette brands, 62.8% of boys and 55.3% of girls (p<0.01). The most well-known brands were Marlboro and the local brand Petra. Marlboro was better known among boys, while Petra was more known among girls. Children whose parents smoke showed higher brand awareness than children with non-smoking parents, 72.5% and 45.6%, respectively (p<0.001), and 76.4% of children reported one or more possible sources where to obtain cigarettes. Nearly one quarter (23.3%) of children had ever tried cigarettes, water pipe, cigars, or marijuana. Nearly half of all children (43.1%) reported that they had obtained their first cigarette from a relative or at home, and the second most frequent source were their peers (22.8%). Only 3.9% of children reported that they had purchased their first cigarettes. Relatives were the main source of cigarettes among children that reported smoking more than once. CONCLUSIONS: The high level of cigarette brand awareness and ever smoking provide evidence that tobacco control policies in the Czech Republic do not adequately protect children. Tougher legislation and effective strategies in accordance with the WHO Framework Convention on Tobacco Control are therefore required to better protect children from harmful effects of smoking and the influence of tobacco industry in the Czech Republic. PMID- 29022680 TI - Patients' Risk of Causing Traffic Violations and Traffic Accidents while Driving. AB - OBJECTIVES: This study examines whether drivers suffering from epilepsy, chronic alcoholism and/or hazardous drinking, psychoactive substance abuse, other diseases of the nervous system, mental and behavioural disorders, cardiovascular diseases, severe diabetes, and severe eye diseases are at a greater risk of causing traffic accidents and traffic violations than drivers that cause accidents and violations without these diagnoses. METHODS: A case control study was carried out. The cases were drivers checked by a special medical committee in the period observed suffering from the diseases listed above. Matched controls were taken from the cohort of those that caused accidents and violations during the same period observed. The descriptive statistics were followed by calculation of correlations, t-tests and chi2, and the odds ratio. RESULTS: Drivers with referrals for diseases of the nervous system are five times more likely to cause a traffic accident compared to controls (OR=5.18; 95% CI=2.59-10.34); in addition, a high risk is associated with drivers with mental and behavioural disorders (OR=3.64; 95% CI=1.91-6.94), drivers with epilepsy (OR=1.99; 95% CI=1.01-3.92), and drivers addicted to alcohol (OR=1.71; 95% CI=1.01-2.89). CONCLUSION: Drivers suffering from addiction, a disease of the nervous system, or epilepsy are more likely to cause a traffic accident, which is a contribution to the inconclusive findings of previous studies. The multiple reasons for risks of patients suffering from mental and behavioural disorders need to be further investigated. PMID- 29022681 TI - Body-image Dissatisfaction and Weight-control Behaviour in Slovak Adolescents. AB - OBJECTIVES: The aim of the study was to examine body-image dissatisfaction in adolescents aged 13-15 years reporting to be on a diet and to assess gender and age differences in weight-reduction behaviour in Slovak adolescents. METHODS: Data on a representative sample of 2,765 adolescents (mean age 14.37 years) from the Slovak part of Health Behaviour in School Aged Children Study carried out in 2014 were analysed. Self-reported body-image dissatisfaction and engagement in weight-reduction behaviour of 13 to 15-year-old adolescents was assessed using multiple logistic regression models. RESULTS: More that 20% of boys and 35% of girls perceived themselves to be too fat. Girls reported being on a diet more frequently than boys (28.8% vs. 14.9%). The most frequent weight-reduction behaviours were drinking more water (67.7%), eating more fruits and vegetables (67.1%), and consuming fewer sweets (60.5%) and soft drinks (51.7%). Girls prevailed above boys in the use of these dietary methods. Age differences were not apparent, except for smoking, believed to help in weight reduction and used upmost by 15-year-olds (8.9%) followed by 14 and 13-year-olds, 6.0% and 4.1%, respectively. CONCLUSIONS: Body-image dissatisfaction and weight-control behaviour are issues particularly in girls, however, they did not necessarily correspond with actual obesity. The most commonly used weight-reduction behaviours are in the same way important aspects of a healthy lifestyle. There is room to improve obesity control, particularly within primary health care. PMID- 29022682 TI - Self-reported Health Status Predicting Resilience and Burnout in Longitudinal Study. AB - OBJECTIVE: The study examined the links between health-related indicators, adult resilience, and burnout. METHOD: The data were collected during two waves of the longitudinal study (in 2004-05, N=98, and 2011-12, N=88, respectively). Health behaviour, self-rated health (SRH), Sense of Coherence Scale (SOC), and Shirom Melamed Burnout Measure (SMBM) were measured. RESULTS: The comprehensibility of SOC and physical fatigue of SMBM as measured in wave 2 were determined by SRH as measured in wave 1. In the cross-sectional part, the meaningfulness of SOC was related to SRH, and alcohol consumption in wave 1. The comprehensibility of SOC was related to SRH in wave 2. CONCLUSION: SOC is well known to have effect on health. However, the results show that self-reported health had effect on the comprehensibility of SOC. Our data also support the finding that the effect of SRH on burnout is stronger than the effect of burnout on SRH. PMID- 29022684 TI - Legionellosis: a Walk-through to Identification of the Source of Infection. AB - OBJECTIVES: Although a number of human Legionnaires' disease in tourists are recorded annually in Europe, there are few cases where a direct link can be made between the infected person and the source of infection (hotel or other accommodation). We present a scheme followed in order to track down and identify the source of infection in a tourist suffering from L. pneumophila sg 5 infection, who was accommodated in seven different hotels during his holidays in the island of Crete, and we comment on various difficulties and draw-backs of the process. METHOD: Water samples were collected from the seven hotels where the patient had resided and analyzed at the regional public health laboratory using cultivation and molecular tests. RESULTS: Of 103 water samples analyzed, 19 (18.4%) were positive for Legionella non-pneumophila and 8 (7.8%) were positive for L. pneumophila. A successful L. pneumophila sg 5 match was found between the clinical and environmental sample, which led us to the final identification of the liable hotel. CONCLUSION: Timely notification of the case, within the the European Legionnaires' Disease Surveillance Network (ELDSNet) of the partners involved, is crucial during a course of travel associated with Legionella case investigation. Moreover, the urinary antigen test alone cannot provide sufficient information for the source identification. However, acquiring clinical as well as environmental isolates for serogroup and SBT identification is highly important for the successful matching. PMID- 29022683 TI - National Laboratory Surveillance of Influenza in Macedonia during Four Seasons. AB - OBJECTIVE: The aim of the study is to comprehend results of the influenza lab surveillance system in the Republic of Macedonia after the 2009 pandemic and to determine the main characteristics of four consecutive epidemic seasons (from 2010/2011 until 2013/2014). METHODS: As part of the universal surveillance system, nasal and throat specimens were collected from patients. After extraction of RNA, the CDC real-time RT-PCR assays for the detection of influenza types and subtypes were performed. RESULTS: Out of 920 tested samples, 406 (44.1%) laboratory confirmed cases of influenza were found. Influenza activity begins as early as December and continues until the end of April with peaks in January or February with predominant influenza A and A/H1N1pdm. Influenza A viruses start their activity at week 49 to 52 and subside at week 17. Usually two peaks appear, the first one between week 2 and 4 and the second one between week 6 and 9. Subtype A/H1N1pdm was dominant among influenza A types in the 2010/2011 and 2012/2013 seasons. A/H3N2 was the only circulating influenza virus in the 2011/2012 season. Influenza B season is shorter and has only one peak, between weeks 2-5. Usually the influenza B viruses emerge in later stages than influenza A viruses, except for the first post-pandemic season. CONCLUSION: Results revealed that post-pandemic influenza seasons in Macedonia were rather different. Although the influenza season pattern is similar to patterns in some countries of the WHO European region, some unique characteristics were observed. PMID- 29022685 TI - Inverse Relationship between Adherence to the Mediterranean Diet and Serum Cystatin C Levels. AB - OBJECTIVE: The aim of the present study was to examine serum cystatin C levels in association with the Mediterranean diet in a healthy Greek population. METHODS: Cystatin C together with basic clinical chemistry tests was measured in a total of 490 adults (46+/-16 years, 40% of males), who underwent an annual health check. Demographic, anthropometric and lifestyle characteristics were recorded, while adherence to the Mediterranean diet was evaluated through the MedDietScore (0-55). RESULTS: The mean level of serum cystatin C was 0.84 mg/L, while men had increased serum cystatin C levels compared to women (0.86 mg/L vs. 0.83 mg/L, respectively, 0.017). After adjusting for age, gender, body mass index, smoking status, hypertension, diabetes, hypercholesterolemia, estimated glomerular filtration rate (eGFR), albumin and ferritin levels, each unit increase in MedDietScore led to 0.002 mg/dL drop off in cystatin C serum levels. CONCLUSIONS: We have demonstrated an inverse relationship between the MedDietScore and serum cystatin C levels. Our finding that increases in MedDietScore are associated with decreases in serum cystatin C levels could imply that adherence to the Mediterranean diet may reduce the cardiovascular risk, as assessed by cystatin C, a prognostic marker of the cardiometabolic risk. This notion could have a great impact on public health. PMID- 29022686 TI - Level of Education as a Risk Factor for Extensive Prevalence of Cervical Intervertebral Disc Degenerative Changes and Chronic Neck Pain. AB - OBJECTIVE: The aim of this study was to document the prevalence of degenerative intervertebral disc changes in the patients who previously reported symptoms of neck pain and to determine the influence of education level on degenerative intervertebral disc changes and subsequent chronic neck pain. METHODS: One hundred and twelve patients were randomly selected from the University Hospital in Mostar, Bosna and Herzegovina, (aged 48.5+/-12.7 years) and submitted to magnetic resonance imaging (MRI) of the cervical spine. MRI of 3.0 T (Siemens, Skyrim, Erlangen, Germany) was used to obtain cervical spine images. Patients were separated into two groups based on their education level: low education level (LLE) and high education level (HLE). Pfirrmann classification was used to document intervertebral disc degeneration, while self-reported chronic neck pain was evaluated using the previously validated Oswestry questionnaire. RESULTS: The entire logistic regression model containing all predictors was statistically significant, (chi2(3)=12.2, p=0.02), and was able to distinguish between respondents who had chronic neck pain and vice versa. The model explained between 10.0% (Cox-Snell R2) and 13.8% (Nagelkerke R2) of common variance with Pfirrmann classification, and it had the strength to discriminate and correctly classify 69.6% of patients. The probability of a patient being classified in the high or low group of degenerative disc changes according to the Pfirrmann scale was associated with the education level (Wald test: 5.5, p=0.02). Based on the Pfirrmann assessment scale, the HLE group was significantly different from the LLE group in the degree of degenerative changes of the cervical intervertebral discs (U=1,077.5, p=0.001). CONCLUSION: A moderate level of intervertebral disc degenerative changes (grade II and III) was equally matched among all patients, while the overall results suggest a higher level of education as a risk factor leading to cervical disc degenerative changes, regardless of age differences among respondents. PMID- 29022687 TI - Bohumir Prochazka, longtime CEJPH Editorial Board member, dies at 64. PMID- 29022688 TI - Hospital Quality and Hospital Value-Based Purchasing. PMID- 29022689 TI - Geriatric assessments and medication management in elderly oncology patients. PMID- 29022690 TI - Metallic versus Semiconducting SWCNT Chemiresistors: A Case for Separated SWCNTs Wrapped by a Metallosupramolecular Polymer. AB - As-synthesized single-walled carbon nanotubes (SWCNTs) are a mixture of metallic and semiconducting tubes, and separation is essential to improve the performances of SWCNT-based electric devices. Our chemical sensor monitors the conductivity of an SWCNT network, wherein each tube is wrapped by an insulating metallosupramolecular polymer (MSP). Vapors of strong electrophiles such as diethyl chlorophosphate (DECP), a nerve agent simulant, can trigger the disassembly of MSPs, resulting in conductive SWCNT pathways. Herein, we report that separated SWCNTs have a large impact on the sensitivity and selectivity of chemical sensors. Semiconducting SWCNT (S-SWCNT) sensors are the most sensitive to DECP (up to 10000% increase in conductivity). By contrast, the responses of metallic SWCNT (M-SWCNT) sensors were smaller but less susceptible to interfering signals. For saturated water vapor, increasing and decreasing conductivities were observed for S- and M-SWCNT sensors, respectively. Mixtures of M- and S-SWCNTs revealed reduced responses to saturated water vapor as a result of canceling effects. Our results reveal that S- and M-SWCNTs compensate sensitivity and selectivity, and the combined use of separated SWCNTs, either in arrays or in single sensors, offers advantages in sensing systems. PMID- 29022691 TI - Monolithic Two-Dimensional Photonic Crystal Reflectors for the Fabrication of Highly Efficient and Highly Transparent Dye-Sensitized Solar Cells. AB - The transparent characteristic of dye-sensitized solar cells (DSCs) makes them suitable for building integrated photovoltaic (BIPV) devices. However, the diffusive scattering layer, which is usually used to increase the efficiency of these devices, greatly lowers the transparency of the DSC. This paper described a two-dimensional (2D) photonic crystal (PC) reflector with a sub-micrometer characteristic length that can improve the efficiency of these devices while maintaining transparency. This 2D PCs were fabricated directly onto TiO2 photoelectrodes using colloidal lithography and have the structure of a nanopillar array. A nanopillar with a height of 430 nm was observed to selectively reflect up to 40% of the light of 400-500 nm wavelength. The perceived transparency of the 2D PC electrode was 52%, which is much higher than 0.3% of the conventional scattering layer. The DSC fabricated using the 2D PC electrode demonstrated a maximum photon-to-electric conversion efficiency of 8.23%, which is 18% higher than the pristine electrode. The 2D PC is a highly efficient and wavelength-selective reflector that can be applied to various photoelectric conversion devices. PMID- 29022692 TI - Paper Spray Ionization Coupled to High Resolution Tandem Mass Spectrometry for Comprehensive Urine Drug Testing in Comparison to Liquid Chromatography-Coupled Techniques after Urine Precipitation or Dried Urine Spot Workup. AB - Screening procedures using high resolution (HR)-mass spectrometry (MS) are getting more and more important, e.g., for drug testing or adherence monitoring. Approaches usually include time-consuming sample preparation and compound separation by liquid chromatography (LC). The paper spray ionization (PSI) technique coupled to MS might overcome these steps by direct analysis of complex mixtures without extraction and separation. In recent years, this technology proved its potential for quantification and/or qualitative screening in biofluids. However, so far, PSI-MS was only applied to procedures covering a limited number of targets. Therefore, a PSI-HR-MS/MS approach was developed and successfully validated for comprehensive urine screening. The procedure showed high matrix effects for most drugs but still acceptable limits of identification. Applicability was tested by analyses of three proficiency tests for systematic toxicological analysis and of 103 authentic human urine samples. Its screening power was compared to that of published LC-HR-MS/MS procedures after urine precipitation with conjugate cleavage (UglucP) or dried urine spot workup by conjugate cleavage and liquid extraction (DUSglucE). In the authentic samples, 73% of all 777 drug intakes were detectable with the new approach. The LC-HR MS/MS screening approaches detected more drugs, particularly in samples with low analyte concentrations, with values of 88% after UglucP or 76% after DUSglucE. In conclusion, the new PSI-HR-MS/MS screening approach was suitable for comprehensive urine screening of different drug classes and might be a promising alternative to conventional procedures. However, limitations should be considered such as detection of drugs in low concentrations and risk of false positive or negative results caused by mixed spectra. PMID- 29022693 TI - Trilayer Three-Dimensional Hydrogel Composite Scaffold Containing Encapsulated Adipose-Derived Stem Cells Promotes Bladder Reconstruction via SDF-1alpha/CXCR4 Pathway. AB - Bladder acellular matrix graft-alginate dialdehyde-gelatin hydrogel-silk mesh (BAMG-HS) encapsulated with adipose-derived stem cells (ASCs) was evaluated in a rat model of augmentation cystoplasty, including BAMG-HS-ASCs (n = 18, subgroup n = 6 for 2, 4, and 12 weeks), acellular BAMG-HS (n = 6 for 12 weeks) and cystotomy control (n = 6 for 12 weeks) groups. Equipped with good cytocompatibility and superior mechanical properties (elastic modulus: 5.33 +/- 0.96 MPa, maximum load: 28.90 +/- 0.69 N), BAMG-HS acted a trilayer "sandwich" scaffold with minimal interference in systemic homeostasis. ASCs in BAMG-HS promoted morphological and histological bladder restoration by accelerating scaffold degradation (p < 0.05), ameliorating fibrosis (p < 0.05) and inflammation (p < 0.01). Additionally, ASCs facilitated the recovery of bladder function by enhancing smooth muscle regeneration (p < 0.05), innervation (p < 0.01) and angiogenesis (p < 0.001). Except for a small number of endothelium-differentiated ASCs, the pro-angiogenic effects of ASCs were mainly related to ERK1/2 phosphorylation in the downstream of SDF-1alpha/CXCR4 pathway. PMID- 29022694 TI - Enhancing Distorted Metal-Organic Framework-Derived ZnO as Anode Material for Lithium Storage by the Addition of Ag2S Quantum Dots. AB - The lithium storage properties of the distorted metal-organic framework-derived nanosized ZnO@C are significantly improved by the introduction of Ag2S quantum dots (QDs) during the processing of the material. In the thermal treatment, the Ag2S QDs react to produce Ag nanoparticles and ZnS. The metal nanoparticles act to shorten electron pathways and improve the connectivity of the matrix, and the partial sulfidation of the ZnO surface improves the cycling stability of the material. The electrochemical properties of ZnO@C, Ag2S QDs-treated ZnO@C, and the amorphous carbon in ZnO@C have been compared. The small weight ratio of Ag2S QDs to ZnO@C at 1:180 shows the best performance in lithium storage. The exhibited specific capacities are improved and retained remarkably in the cycling at high current rates. At low current densities (200 mA g-1), treatment of ZnO@C with Ag2S QDs results in a 38% increase in the specific capacity. PMID- 29022695 TI - High Activity and Convenient Ratio Control: DNA-Directed Coimmobilization of Multiple Enzymes on Multifunctionalized Magnetic Nanoparticles. AB - The development of new methods for fabricating artificial multienzyme systems has attracted much interest because of the potential applications and the urgent need for multienzyme catalysts. Controlling the enzyme ratio is critical for improving the cooperative enzymatic activity in multienzyme systems. Herein, we introduce a versatile strategy for fabricating a multienzyme system by coimmobilizing horseradish peroxidase (HRP) and glucose oxidase (GOx) on magnetic nanoparticles multifunctionalized with dopamine derivatives through DNA-directed immobilization. This multienzyme system exhibited precise enzyme ratio control, high catalytic efficiency, magnetic retrievability, and enhanced stability. The enzyme ratio was conveniently adjusted, as required, by regulating the quantity of functional groups on the multifunctionalized nanoparticles. The optimal mole ratio of GOx/HRP was 2:1. The Michaelis constant Km and specificity constant (kcat/Km, where kcat is the catalytic rate constant) of the multienzyme system were 1.41 mM and 5.02 s-1 mM-1, respectively, which were approximately twice the corresponding values of free GOx&HRP. The increased bioactivity of the multienzyme system was ascribed to the colocalization of the involved enzymes and the promotion of DNA-directed immobilization. Given the wide variety of possible enzyme associations and the high efficiency of this strategy, we believe that this work provides a new route for the fabrication of artificial multienzyme systems and can be extended for a wide range of applications in diagnosis, biomedical devices, and biotechnology. PMID- 29022696 TI - Building Additional Passageways in Polyamide Membranes with Hydrostable Metal Organic Frameworks To Recycle and Remove Organic Solutes from Various Solvents. AB - Membrane separation is a promising technology for extracting temperature sensitive organic molecules from solvents. However, a lack of membrane materials that are permeable toward organic solvents yet highly selective curtails large scale membrane applications. To overcome the trade-off between flux and selectivity, additional molecular transportation pathways are constructed in ultrathin polyamide membranes using highly hydrostable metal organic frameworks with diverse functional surface architectures. Additional passageways enhance water permeance by 84% (15.4 L m-2 h-1 bar-1) with nearly 100% rose bengal rejection and 97.6% azithromycin rejection, while showing excellent separation performance in ethyl acetate, ketones, and alcohols. These unique composite membranes remain stable in both aqueous and organic solvent environments. This immediately finds application in the purification of aqueous mixtures containing organic soluble compounds, such as antibiotics, during pharmaceutical manufacturing. PMID- 29022698 TI - PCR-Free Colorimetric DNA Hybridization Detection Using a 3D DNA Nanostructured Reporter Probe. AB - A "sandwich-like" biosensor was developed on the basis of the magnetic bead platform for sensitive detection of breast cancer 1 (BRCA1) DNA. In the present study, a tetrahedron-structured reporter probe (TSRP) was designed, in which 3 vertices of the tetrahedron were labeled with digoxin (Dig), and the other one was labeled with a detection probe. TSRP here provided accurate enzyme loading and well-organized spatial arrangement for optimized signal amplification. The detection limit of this biosensor was as low as 10 fM, which is at least 4 orders of magnitude lower than that of the single DNA probe (100 pM), and the signal gain was 2 times higher than the analysis using three one-dimensional (1D) reporter probes. We could distinguish DNA sequences with only 1 base mismatch, and the performance of our TSRP biosensor was proven to be equally good in both PCR products and real fetal calf serum (FCS) sample as in buffer. We believe this work provided a novel avenue for the development of signal amplification strategies. PMID- 29022699 TI - Scalable High-Affinity Stabilization of Magnetic Iron Oxide Nanostructures by a Biocompatible Antifouling Homopolymer. AB - Iron oxide nanostructures have been widely developed for biomedical applications because of their magnetic properties and biocompatibility. In clinical applications, stabilization of these nanostructures against aggregation and nonspecific interactions is typically achieved using weakly anchored polysaccharides, with better-defined and more strongly anchored synthetic polymers not commercially adopted because of their complexity of synthesis and use. Here, we show for the first time stabilization and biocompatibilization of iron oxide nanoparticles by a synthetic homopolymer with strong surface anchoring and a history of clinical use in other applications, poly(2-methacryloyloxyethyl phosphorylcholine) [poly(MPC)]. For the commercially important case of spherical particles, binding of poly(MPC) to iron oxide surfaces and highly effective individualization of magnetite nanoparticles (20 nm) are demonstrated. Next generation high-aspect-ratio nanowires (both magnetite/maghemite and core-shell iron/iron oxide) are, furthermore, stabilized by poly(MPC) coating, with the nanowire cytotoxicity at large concentrations significantly reduced. The synthesis approach exploited to incorporate functionality into the poly(MPC) chain is demonstrated by random copolymerization with an alkyne-containing monomer for click chemistry. Taking these results together, poly(MPC) homopolymers and random copolymers offer a significant improvement over current iron oxide nanoformulations, combining straightforward synthesis, strong surface anchoring, and well-defined molecular weight. PMID- 29022700 TI - Design and Selection of a Synthetic Feedback Loop for Optimizing Biofuel Tolerance. AB - Feedback control allows cells to dynamically sense and respond to environmental changes. However, synthetic controller designs can be challenging because of implementation issues, such as determining optimal expression levels for circuit components within a feedback loop. Here, we addressed this by coupling rational design with selection to engineer a synthetic feedback circuit to optimize tolerance of Escherichia coli to the biojet fuel pinene. E. coli can be engineered to produce pinene, but it is toxic to cells. Efflux pumps, such as the AcrAB-TolC pump, can improve tolerance, but pump expression impacts growth. To address this, we used feedback to dynamically regulate pump expression in response to stress. We developed a library with thousands of synthetic circuit variants and subjected it to three types of pinene treatment (none, constant, and varying pinene). We were able to select for strains that were biofuel tolerant without a significant growth cost in the absence of biofuel. Using next generation sequencing, we found common characteristics in the designs and identified controllers that dramatically improved biofuel tolerance. PMID- 29022701 TI - Genetic and Pharmacological Discovery for Alzheimer's Disease Using Caenorhabditis elegans. AB - The societal burden presented by Alzheimer's disease warrants both innovative and expedient means by which its underlying molecular causes can be both identified and mechanistically exploited to discern novel therapeutic targets and strategies. The conserved characteristics, defined neuroanatomy, and advanced technological application of Caenorhabditis elegans render this metazoan an unmatched tool for probing neurotoxic factors. In addition, its short lifespan and importance in the field of aging make it an ideal organism for modeling age related neurodegenerative disease. As such, this nematode system has demonstrated its value in predicting functional modifiers of human neurodegenerative disorders. Here, we review how C. elegans has been utilized to model Alzheimer's disease. Specifically, we present how the causative neurotoxic peptides, amyloid beta and tau, contribute to disease-like neurodegeneration in C. elegans and how they translate to human disease. Furthermore, we describe how a variety of transgenic animal strains, each with distinct utility, have been used to identify both genetic and pharmacological modifiers of toxicity in C. elegans. As technological advances improve the prospects for intervention, the rapidity, unparalleled accuracy, and scale that C. elegans offers researchers for defining functional modifiers of neurodegeneration should speed the discovery of improved therapies for Alzheimer's disease. PMID- 29022697 TI - Improved Photoinduced Fluorogenic Alkene-Tetrazole Reaction for Protein Labeling. AB - The 1,3-dipolar cycloaddition reaction between an alkene and a tetrazole represents one elegant and rare example of fluorophore-forming bioorthogonal chemistry. This is an attractive reaction for imaging applications in live cells that requires less intensive washing steps and/or needs spatiotemporal resolutions. In the present work, as an effort to improve the fluorogenic property of the alkene-tetrazole reaction, an aromatic alkene (styrene) was investigated as the dipolarophile. Over 30-fold improvement in quantum yield of the reaction product was achieved in aqueous solution. According to our mechanistic studies, the observed improvement is likely due to an insufficient protonation of the styrene-tetrazole reaction product. This finding provides useful guidance to the future design of alkene-tetrazole reactions for biological studies. Fluorogenic protein labeling using the styrene-tetrazole reaction was demonstrated both in vitro and in vivo. This was realized by the genetic incorporation of an unnatural amino acid containing the styrene moiety. It is anticipated that the combination of styrene with different tetrazole derivatives can generally improve and broaden the application of alkene-tetrazole chemistry in real-time imaging in live cells. PMID- 29022702 TI - Development of Bright and Biocompatible Nanoruby and Its Application to Background-Free Time-Gated Imaging of G-Protein-Coupled Receptors. AB - At the forefront of developing fluorescent probes for biological imaging applications are enhancements aimed at increasing their brightness, contrast, and photostability, especially toward demanding applications of single-molecule detection. In comparison with existing probes, nanorubies exhibit unlimited photostability and a long emission lifetime (~4 ms), which enable continuous imaging at single-particle sensitivity in highly scattering and fluorescent biological specimens. However, their wide application as fluorescence probes has so far been hindered by the absence of facile methods for scaled-up high-volume production and molecularly specific targeting. The present work encompasses the large-scale production of colloidally stable nanoruby particles, the demonstration of their biofunctionality and negligible cytotoxicity, as well as the validation of its use for targeted biomolecular imaging. In addition, optical characteristics of nanorubies are found to be comparable or superior to those of state-of-the-art quantum dots. Protocols of reproducible and robust coupling of functional proteins to the nanoruby surface are also presented. As an example, NeutrAvidin-coupled nanoruby show excellent affinity and specificity to MU-opioid receptors in fixed and live cells, allowing wide-field imaging of G-protein coupled receptors with single-particle sensitivity. PMID- 29022703 TI - Probing the Eumelanin-Silica Interface in Chemically Engineered Bulk Hybrid Nanoparticles for Targeted Subcellular Antioxidant Protection. AB - We disclose herein the first example of stable monodispersed hybrid nanoparticles (termed MelaSil-NPs) made up of eumelanin biopolymer intimately integrated into a silica nanoscaffold matrix and endowed with high antioxidant and cytoprotective effects associated with a specific subcellular localization. MelaSil-NPs have been fabricated by an optimized sol-gel methodology involving ammonia-induced oxidative polymerization of a covalent conjugate of the eumelanin building block 5,6-dihydroxyindole-2-carboxylic acid (DHICA) with 3-aminopropyltriethoxysilanes (APTS). They displayed a round-shaped (ca. 50-80 nm) morphology, exhibited the typical electron paramagnetic resonance signal of eumelanin biopolymers, and proved effective in promoting decomposition of hydrogen peroxide under physiologically relevant conditions. When administered to human ovarian cancer cells (A2780) or cervical cancer cells (HeLa), MelaSil-NPs were rapidly internalized and colocalized with lysosomes and exerted efficient protecting effects against hydrogen peroxide-induced oxidative stress and cytotoxicity. PMID- 29022704 TI - A Kinetic Model of Nonenzymatic RNA Polymerization by Cytidine-5'-phosphoro-2 aminoimidazolide. AB - The nonenzymatic polymerization of RNA may have enabled copying of functional sequences during the origin of life. Recent progress utilizing 5'-phosphoro-2 aminoimidazole activation has reinvigorated the possibility of using nonenzymatic RNA polymerization for copying arbitrary sequences. However, the reasons why 2 aminoimidazole (AI) is a superior activation group remain unclear. Here we report that the predominant mechanism of polymerization using cytidine-5'-phosphoro-2 aminoimidazolide (Cp*) involves a 2-aminoimidazolium-bridged dinucleotide (Cp*pC) intermediate. To explore the role of this intermediate, we first identify and quantify four reactions involving the synthesis and breakdown of Cp*pC that occur in the absence of the primer-template duplex. We then analyze the dependence of the rate of polymerization on the concentration of the Cp*pC intermediate in the presence and absence of the competitive inhibitor Cp. We also show that the contribution of the monomer Cp* to the polymerization rate is negligible under our primer extension conditions. Finally, we use the experimentally determined rate constants of these reactions to develop a kinetic model that helps explain the changing rate of nonenzymatic RNA polymerization over time. Our model accounts for the concentration of Cp*pC formed by Cp* under primer extension conditions. The model does not completely account for the decline in polymerization rate observed over long times, which indicates that additional important inhibitory processes have not yet been identified. Our results suggest that the superiority of 2-aminoimidazole over the traditional 2-methylimidazole activation is mostly due to the higher level of accumulation of the imidazolium bridged intermediate under primer extension conditions. PMID- 29022705 TI - Platinum Complexes of N,N',N",N'''-Diboronazophenines. AB - Azophenine, (alpha-C6H5NH)2(C6H5-N?C6H2?N-C6H5), well known to be non-emissive, was rigidified by replacing two amine protons by two difluoroboranes (BF2+) and further functionalized at the para-positions of the phenyl groups by luminescent trans-ArC=C-Pt(PR3)2-C=C ([Pt]) arms [Ar = C6H4 (R = Et), hexa(n-hexyl)truxene) (Tru; R = Bu)]. Two effects are reported. First, the linking of these [Pt] arms with the central azophenine (C6H4-N?C6H2(NH)2?N-C6H4; Q) generates very low energy charge-transfer (CT) singlet and triplet excited states (3,1([Pt]-to-Q)*) with absorption bands extending all the way to 800 nm. Second, the rigidification of azophenine by the incorporation of BF2+ units renders the low-lying CT singlet state clearly emissive at 298 and 77 K in the near-IR region. DFT computations place the triplet emission in the 1200-1400 nm range, but no phosphorescence was detected. The photophysical properties are investigated, and circumstantial evidence for slow triplet energy transfers, 3Tru* -> Q, is provided. PMID- 29022707 TI - Bistable [c2] Daisy Chain Rotaxanes as Reversible Muscle-like Actuators in Mechanically Active Gels. AB - The implementation of molecular machines in polymer science is of high interest to transfer mechanical motions from nanoscale to macroscale in order to access new kinds of active devices and materials. Toward this objective, thermodynamic and topological aspects need to be explored for reaching efficient systems capable of producing a useful work. In this paper we describe the branched polymerization of pH-sensitive bistable [c2] daisy chain rotaxanes by using copper(I)-catalyzed Huisgen 1,3-dipolar cycloaddition ("click chemistry"). With this cross-linked topology, the corresponding materials in the form of chemical gels can be contracted and expanded over a large variation of volume (~50%) by changing the protonation state of the system. HR-MAS 1H NMR and neutron scattering experiments reveal that this macroscopic response of the gels results from the synchronized actuation of the mechanical bonds at the molecular level. PMID- 29022706 TI - Understanding and Interrupting the Fischer Azaindolization Reaction. AB - Experimental and computational studies pertaining to the Fischer azaindolization reaction are reported. These studies explain why pyridylhydrazines are poorly reactive in Fischer indolization reactions, in addition to the origin of hydrazine substituent effects. Additionally, an interrupted variant of Fischer azaindolization methodology is disclosed, which provides a synthetic entryway into fused azaindoline scaffolds. PMID- 29022708 TI - Dynamic Model for the Stocks and Release Flows of Engineered Nanomaterials. AB - Most existing life-cycle release models for engineered nanomaterials (ENM) are static, ignoring the dynamics of stock and flows of ENMs. Our model, nanoRelease, estimates the annual releases of ENMs from manufacturing, use, and disposal of a product explicitly taking stock and flow dynamics into account. Given the variabilities in key parameters (e.g., service life of products and annual release rate during use) nanoRelease is designed as a stochastic model. We apply nanoRelease to three ENMs (TiO2, SiO2 and FeOx) used in paints and coatings through seven product applications, including construction and building, household and furniture, and automotive for the period from 2000 to 2020 using production volume and market projection information. We also consider model uncertainties using Monte Carlo simulation. Compared with 2016, the total annual releases of ENMs in 2020 will increase by 34-40%, and the stock will increase by 28-34%. The fraction of the end-of-life release among total release flows will increase from 11% in 2002 to 43% in 2020. As compared to static models, our dynamic model predicts about an order of magnitude lower values for the amount of ENM released from this sector in the near-term while stock continues to build up in the system. PMID- 29022710 TI - Probing Charge Carrier Dynamics in Porphyrin-Based Organic Semiconductor Thin Films by Time-Resolved THz Spectroscopy. AB - To improve the power conversion efficiency of solar cells, it is important to understand the underlying relaxation mechanisms of photogenerated charge carriers in organic semiconductors. In this work, we studied the charge carrier dynamics of diketopyrrolopyrrole-linked tetrabenzoporphyrin thin films where the diketopyrrolopyrrole unit has two n-butyl groups, abbreviated as C4-DPP-BP. We used time-resolved terahertz (THz) spectroscopy to track charge carrier dynamics with excitations at 800 and 400 nm. Compared with tetrabenzoporphyrin (BP), the extension of pi-electron delocalization to the diketopyrrolopyrrole peripherals leads to an increase in absorption in the near-infrared region. Following the excitation at 800 nm, we found that the transient THz signals in C4-DPP-BP thin films decay with time constants of 0.5 and 9.1 ps, with small residual components. With excitation at 400 nm, we found that the transient THz signals decay with time constants of 0.4 and 7.5 ps. On the basis of the similarity of the decay profiles of the transient THz signals obtained with excitations at 400 and 800 nm, we considered that the decaying components are due to charge carrier recombination and/or trapping at defect sites, which do not depend on the excess energy of the photoexcitation. In contrast to BP, even without an electron acceptor, we observed the finite offset of the transient THz signals at 100 ps, demonstrating the existence of long-lived charge carriers. We also measured the photoconductivity spectra of C4-DPP-BP thin films with the excitation at both 800 and 400 nm. It was found that the spectra can be fitted by the Drude-Smith model. From these results, it was determined that the charge carriers are localized right after photoexcitation. At 0.4 ps, the product of the quantum yield of charge generation and mobility of charge carriers at 400 nm is approximately twice that obtained at 800 nm. We discuss the implications of the excess excitation energy in organic semiconductor-based devices. PMID- 29022709 TI - Directed gamma-C(sp3)-H Alkylation of Carboxylic Acid Derivatives through Visible Light Photoredox Catalysis. AB - Visible light photoredox catalysis enables direct gamma- C(sp3)-H alkylation of saturated aliphatic carbonyl compounds. Electron-deficient alkenes are used as the coupling partners in this reaction. Distinguished site selectivity is controlled by the predominant 1,5-hydrogen atom transfer of an amidyl radical generated in situ. PMID- 29022711 TI - Selenoglutathione Diselenide: Unique Redox Reactions in the GPx-Like Catalytic Cycle and Repairing of Disulfide Bonds in Scrambled Protein. AB - Selenoglutathione (GSeH) is a selenium analogue of naturally abundant glutathione (GSH). In this study, this water-soluble small tripeptide was synthesized in a high yield (up to 98%) as an oxidized diselenide form, i.e., GSeSeG (1), by liquid-phase peptide synthesis (LPPS). Obtained 1 was applied to the investigation of the glutathione peroxidase (GPx)-like catalytic cycle. The important intermediates, i.e., GSe- and GSeSG, besides GSeO2H were characterized by 77Se NMR spectroscopy. Thiol exchange of GSeSG with various thiols, such as cysteine and dithiothreitol, was found to promote the conversion to GSe- significantly. In addition, disproportionation of GSeSR to 1 and RSSR, which would be initiated by heterolytic cleavage of the Se-S bond and catalyzed by the generated selenolate, was observed. On the basis of these redox behaviors, it was proposed that the heterolytic cleavage of the Se-S bond can be facilitated by the interaction between the Se atom and an amino or aromatic group, which is present at the GPx active site. On the other hand, when a catalytic amount of 1 was reacted with scrambled 4S species of RNase A in the presence of NADPH and glutathione reductase, native protein was efficiently regenerated, suggesting a potential use of 1 to repair misfolded proteins through reduction of the non native SS bonds. PMID- 29022712 TI - Predictive Structure-Based Toxicology Approaches To Assess the Androgenic Potential of Chemicals. AB - We present a practical and easy-to-run in silico workflow exploiting a structure based strategy making use of docking simulations to derive highly predictive classification models of the androgenic potential of chemicals. Models were trained on a high-quality chemical collection comprising 1689 curated compounds made available within the CoMPARA consortium from the US Environmental Protection Agency and were integrated with a two-step applicability domain whose implementation had the effect of improving both the confidence in prediction and statistics by reducing the number of false negatives. Among the nine androgen receptor X-ray solved structures, the crystal 2PNU (entry code from the Protein Data Bank) was associated with the best performing structure-based classification model. Three validation sets comprising each 2590 compounds extracted by the DUD E collection were used to challenge model performance and the effectiveness of Applicability Domain implementation. Next, the 2PNU model was applied to screen and prioritize two collections of chemicals. The first is a small pool of 12 representative androgenic compounds that were accurately classified based on outstanding rationale at the molecular level. The second is a large external blind set of 55450 chemicals with potential for human exposure. We show how the use of molecular docking provides highly interpretable models and can represent a real-life option as an alternative nontesting method for predictive toxicology. PMID- 29022713 TI - Extending the Nonbonded Cationic Dummy Model to Account for Ion-Induced Dipole Interactions. AB - Modeling metalloproteins often requires classical molecular dynamics (MD) simulations in order to capture their relevant motions, which in turn necessitates reliable descriptions of the metal centers involved. One of the most successful approaches to date is provided by the "cationic dummy model", where the positive charge of the metal ion is transferred toward dummy particles that are bonded to the central metal ion in a predefined coordination geometry. While this approach allows for ligand exchange, and captures the correct electrostatics as demonstrated for different divalent metal ions, current dummy models neglect ion-induced dipole interactions. In the present work, we resolve this weakness by taking advantage of the recently introduced 12-6-4 type Lennard-Jones potential to include ion-induced dipole interactions. We revise our previous dummy model for Mg2+ and demonstrate that the resulting model can simultaneously reproduce the experimental solvation free energy and metal-ligand distances without the need for artificial restraints or bonds. As ion-induced dipole interactions become particularly important for highly charged metal ions, we develop dummy models for the biologically relevant ions Al3+, Fe3+, and Cr3+. Finally, the effectiveness of our new models is demonstrated in MD simulations of several diverse (and highly challenging to simulate) metalloproteins. PMID- 29022714 TI - Understanding the Effects of a High Surface Area Nanostructured Indium Tin Oxide Electrode on Organic Solar Cell Performance. AB - Organic solar cells (OSCs) are a complex assembly of disparate materials, each with a precise function within the device. Typically, the electrodes are flat, and the device is fabricated through a layering approach of the interfacial layers and photoactive materials. This work explores the integration of high surface area transparent electrodes to investigate the possible role(s) a three dimensional electrode could take within an OSC, with a BHJ composed of a donor acceptor combination with a high degree of electron and hole mobility mismatch. Nanotree indium tin oxide (ITO) electrodes were prepared via glancing angle deposition, structures that were previously demonstrated to be single crystalline. A thin layer of zinc oxide was deposited on the ITO nanotrees via atomic layer deposition, followed by a self-assembled monolayer of C60-based molecules that was bound to the zinc oxide surface through a carboxylic acid group. Infiltration of these functionalized ITO nanotrees with the photoactive layer, the bulk heterojunction comprising PC71BM and a high hole mobility low band gap polymer (PDPPTT-T-TT), led to families of devices that were analyzed for the effect of nanotree height. When the height was varied from 0 to 50, 75, 100, and 120 nm, statistically significant differences in device performance were noted with the maximum device efficiencies observed with a nanotree height of 75 nm. From analysis of these results, it was found that the intrinsic mobility mismatch between the donor and acceptor phases could be compensated for when the electron collection length was reduced relative to the hole collection length, resulting in more balanced charge extraction and reduced recombination, leading to improved efficiencies. However, as the ITO nanotrees increased in height and branching, the decrease in electron collection length was offset by an increase in hole collection length and potential deleterious electric field redistribution effects, resulting in decreased efficiency. PMID- 29022715 TI - High-Efficiency Optical Gain in Type-II Semiconductor Nanocrystals of Alloyed Colloidal Quantum Wells. AB - Colloidal nanocrystals having controlled size, tailored shape, and tuned composition have been explored for optical gain and lasing. Among these, nanocrystals having Type-II electronic structure have been introduced toward low threshold gain. However, to date, their performance has remained severely limited due to diminishing oscillator strength and modest absorption cross-section. Overcoming these problems, here we realize highly efficient optical gain in Type II nanocrystals by using alloyed colloidal quantum wells. With composition-tuned core/alloyed-crown CdSe/CdSexTe1-x quantum wells, we achieved amplified spontaneous emission thresholds as low as 26 MUJ/cm2, long optical gain lifetimes (taugain ~ 400 ps), and high modal gain coefficients (gmodal ~ 930 cm-1). We uncover that the optical gain in these Type-II quantum wells arises from the excitations localized to the alloyed-crown region that are electronically coupled to the charge-transfer state. These alloyed heteronanostructures exhibiting remarkable optical gain performance are expected to be highly appealing for future display and lighting technologies. PMID- 29022718 TI - Multilayer Growth of Porphyrin-Based Polyurea Thin Film Using Solution-Based Molecular Layer Deposition Technique. AB - Controllable synthesis of organic thin film materials on solid surfaces is a challenging issue in the research field of surface science, as it is affected by several physical parameters. In this work, we demonstrated a solution-based molecular layer deposition (MLD) approach to prepare porphyrin-based covalent organic molecular networks on a 3-aminopropyl trimethoxysilane (APTMS) modified substrate surface using the urea coupling reaction between 1,4-phenylene diisocyanate (1,4-PDI) and 5,10,15,20-tetrakis-(4-aminophenyl) porphyrin (H2TAPP) at room temperature (22 +/- 2 degrees C). Multilayer growth was investigated under different relative humidity (RH) conditions of the reaction chamber. Sequential molecular growth at low relative humidity (<=10% RH) was observed using UV-vis absorption spectroscopy and atomic force microscopy (AFM). The high RH condition shows limited film growth. Infrared spectroscopy (IR) and X-ray photoelectron spectroscopy (XPS) revealed the polyurea bond formation in sequential multilayer thin films, demonstrating that stepwise multilayer film growth was achieved using the urea coupling reaction. PMID- 29022717 TI - Complex Emulsions by Extracting Water from Homogeneous Solutions Comprised of Aqueous Three-Phase Systems. AB - Multiple emulsions can be obtained by binary and ternary liquid phase separation. And the use of the aqueous two-phase system provides a simple route to prepare water-in-water-in-oil (W/W/O) or water-in-water-in-water (W/W/W) multiple emulsions. It is thus expected that we can fabricate more complex emulsions by using an aqueous three-phase system. Herein, we present a simple and versatile method to generate complex emulsions based on phase separation in homogeneous droplets made up of aqueous three-phase system: poly(ethylene glycol) (PEG), poly(vinyl alcohol) (PVA) and dextran (DEX) through extracting water from droplets. We examine the formation process and the effect of mass ratio of each two components in the three phase system. Emulsion droplets with five types of morphologies, i.e., binary-core/shell, core/shell-single phase Janus, ellipsoid Janus, multicore-in-matrix and single core-double shell morphologies can be formed, depending on the mass ratio of each two components and modification of PEG with Fe3O4 nanoparticles. We observe transition of core/shell-single phase Janus to binary-core/shell and single core-double shell to core/shell-single phase Janus geometry with prolongation of extracting time, and obtain the geometry map for the formation of different shaped droplets. Due to different affinities of PEG, PVA and DEX to certain materials, we functionalize each compartment in the complex emulsion droplets, and apply the resulting droplet for glucose sensing and the construction of antibody-mediated targeting drug delivery. This emulsion generation method is simple and the choice for the component of the aqueous three-phase system is broad, which can be further extended to generate complex emulsions from aqueous multiphase systems. PMID- 29022716 TI - Bespoke Diblock Copolymer Nanoparticles Enable the Production of Relatively Stable Oil-in-Water Pickering Nanoemulsions. AB - Sterically stabilized diblock copolymer nanoparticles with an intensity-average diameter of 25 nm are prepared in the form of a concentrated aqueous dispersion using polymerization-induced self-assembly (PISA). The addition of n-dodecane followed by high-shear homogenization produces n-dodecane-in-water Pickering macroemulsions of 22-46 MUm diameter. If the nanoparticles are present in sufficient excess, then subsequent processing using a high-pressure microfluidizer leads to the formation of Pickering nanoemulsions with a mean oil droplet diameter below 200 nm. The size of these Pickering nanoemulsions can be tuned by systematically varying the nanoparticle concentration, applied pressure, number of passes, and oil volume fraction. High-internal-phase emulsions can also be achieved by increasing the n-dodecane volume fraction up to 0.80. TEM studies of (dried) n-dodecane droplets confirm the presence of intact nanoparticles and suggest a relatively high surface coverage, which is consistent with model packing calculations based on radius ratios. Such Pickering nanoemulsions proved to be surprisingly stable with respect to Ostwald ripening, with no significant change in the mean DLS droplet diameter after storage for approximately 4 months at 20 degrees C. PMID- 29022719 TI - The Protein Corona of PEGylated PGMA-Based Nanoparticles is Preferentially Enriched with Specific Serum Proteins of Varied Biological Function. AB - The composition of the protein corona formed on poly(ethylene glycol) functionalized (PEGylated) poly(glycidyl methacrylate) (PGMA) nanoparticles (NPs) was qualitatively and quantitatively compared to the protein corona on non PEGylated PGMA NPs. Despite the reputation of PEGylated NPs for stealth functionality, we demonstrate the preferential enrichment of specific serum proteins of varied biological function in the protein corona on PEGylated NPs when compared to non-PEGylated NPs. Additionally, we suggest that the base material of polymeric NPs plays a role in the preferential enrichment of select serum proteins to the hard corona. PMID- 29022720 TI - Photoredox-Catalyzed Cross-Coupling of Enamides for the Assembly of beta Difluoroimine Synthons. AB - A photoredox-catalyzed formal Csp3-Csp3 cross-coupling reaction of enamides with bromodifluoro compounds is established. The resulting gem-difluoromethylenated gamma-imines indicated high stability, excellent E/Z control, and broad functional group tolerance. These synthetic intermediates can efficiently transfer to difluoromethylenated gamma-amino acids or delta-amino alcohols. Mechanistic analysis indicates that a radical/SET mechanism proceeding via a difluoroalkyl radical may be involved in the catalytic cycle. PMID- 29022721 TI - Experimental Evaluation of the Density of Water in a Cell by Raman Microscopy. AB - We report direct observation of a spatial distribution of water molecules inside of a living cell using Raman images of the O-H stretching band of water. The O-H Raman intensity of the nucleus was higher than that of the cytoplasm, indicating that the water density is higher in the nucleus than that in the cytoplasm. The shape of the O-H stretching band of the nucleus differed from that of the cytoplasm but was similar to that of the balanced salt solution surrounding cells, indicating less crowded environments in the nucleus. The concentration of biomolecules having C-H bonds was also estimated to be lower in the nucleus than that in the cytoplasm. These results indicate that the nucleus is less crowded with biomolecules than the cytoplasm. PMID- 29022723 TI - Motivated reasoning during recruitment. AB - This research shows how job postings can lead job candidates to see themselves as particularly deserving of hiring and high salary. We propose that these entitlement beliefs entail both personal motivations to see oneself as deserving and the ability to justify those motivated judgments. Accordingly, we predict that people feel more deserving when qualifications for a job are vague and thus amenable to motivated reasoning, whereby people use information selectively to reach a desired conclusion. We tested this hypothesis with a 2-phase experiment (N = 892) using materials drawn from real online job postings. In the first phase of the experiment, participants believed themselves to be more deserving of hiring and deserving of higher pay after reading postings composed of vaguer types of qualifications. In the second phase, yoked observers believed that participants were less entitled overall, but did not selectively discount endorsement of vaguer qualifications, suggesting they were unaware of this effect. A follow-up preregistered experiment (N = 905) using postings with mixed qualification types replicated the effect of including more vague qualifications on participants' entitlement beliefs. Entitlement beliefs are widely seen as problematic for recruitment and retention, and these results suggest that reducing the inclusion of vague qualifications in job postings would dampen the emergence of these beliefs in applicants, albeit at the cost of decreasing application rates and lowering applicants' confidence. (PsycINFO Database Record PMID- 29022722 TI - The impact of negative affect on attention patterns to threat across the first 2 years of life. AB - The current study examined the relations between individual differences in attention to emotion faces and temperamental negative affect across the first 2 years of life. Infant studies have noted a normative pattern of preferential attention to salient cues, particularly angry faces. A parallel literature suggests that elevated attention bias to threat is associated with anxiety, particularly if coupled with temperamental risk. Examining the emerging relations between attention to threat and temperamental negative affect may help distinguish normative from at-risk patterns of attention. Infants (N = 145) ages 4 to 24 months (M = 12.93 months, SD = 5.57) completed an eye-tracking task modeled on the attention bias "dot-probe" task used with older children and adults. With age, infants spent greater time attending to emotion faces, particularly threat faces. All infants displayed slower latencies to fixate to incongruent versus congruent probes. Neither relation was moderated by temperament. Trial-by-trial analyses found that dwell time to the face was associated with latency to orient to subsequent probes, moderated by the infant's age and temperament. In young infants low in negative affect longer processing of angry faces was associated with faster subsequent fixation to probes; young infants high in negative affect displayed the opposite pattern at trend. Findings suggest that although age was directly associated with an emerging bias to threat, the impact of processing threat on subsequent orienting was associated with age and temperament. Early patterns of attention may shape how children respond to their environments, potentially via attention's gate-keeping role in framing a child's social world for processing. (PsycINFO Database Record PMID- 29022724 TI - Age differences in positive feelings and their expression. AB - Although various studies point to the importance of positive emotions for health and well-being across the entire life span, current research on age differences in emotional reactivity mainly focuses on negative emotions. Empirical evidence on positive emotions is scarce and mixed. Part of the inconsistencies may be related to study differences in the stimuli used and the emotional response systems considered. Thus, the present study examined different response systems (i.e., subjective feelings, facial and verbal expressions) and used internal stimuli of high personal relevance to all participants. More specifically, we used a modified relived emotion task in which younger (M = 25.64, SD = 4.05) and older (M = 70.06, SD = 3.94) adults first privately relived emotions associated with a recent positive event in their life, and subsequently thought aloud about this event and its accompanying feelings. We additionally explored whether conscientiousness, as a marker of self-regulatory skills, is associated with interindividual and age-related differences in positive emotions. During the relived emotion task, there were no age differences in positive feelings; however, compared with young adults, older adults reported more positive feelings during the think-aloud phase. Contrary to our prediction, however, older adults verbally and nonverbally expressed fewer positive emotions than their younger counterparts. Moreover, conscientiousness was associated with individual and age related differences in positive feelings, pointing to the potential explanatory role of self-regulatory skills in the experience of positive emotions. (PsycINFO Database Record PMID- 29022726 TI - Common marmoset (Callithrix jacchus) personality. AB - Increasing evidence suggests that personality structure differs between species, but the evolutionary reasons for this variation are not fully understood. We built on earlier research on New World monkeys to further elucidate the evolution of personality structure in primates. We therefore examined personality in 100 family-reared adult common marmosets (Callithrix jacchus) from 3 colonies on a 60 item questionnaire. Principal components analyses revealed 5 domains that were largely similar to those found in a previous study on captive, ex-pet, or formerly laboratory-housed marmosets that were housed in a sanctuary. The interrater reliabilities of domain scores were consistent with the interrater reliabilities of domain scores found in other species, including humans. Four domainsdmdash;conscientiousness, agreeableness, inquisitiveness, and assertiveness-resembled personality domains identified in other nonhuman primates. The remaining domain, patience, was specific to common marmosets. We used linear models to test for sex and age differences in the personality domains. Males were lower than females in patience, and this difference was smaller in older marmosets. Older marmosets were lower in inquisitiveness. Finally, older males and younger females had higher scores in agreeableness than younger males and older females. These findings suggest that cooperative breeding may have promoted the evolution of social cognition and influenced the structure of marmoset prosocial personality characteristics. (PsycINFO Database Record PMID- 29022727 TI - The power of negative mood in predicting posttraumatic stress disorder and alcohol abuse comorbidity. AB - OBJECTIVE: Individuals with posttraumatic stress disorder (PTSD) show a high risk of developing substance use disorders (SUD). Many studies have shown that PTSD often precedes SUD, and some studies have been able to identify factors that might predict which individuals might develop subsequent SUD. Attempts to treat PTSD and SUD comorbidity have proven difficult, but new methods for simultaneous treatment have shown promise for treating PTSD. The ability to identify factors that predict PTSD/SUD comorbidity and the advent of new combined treatment methods warrant investigation of how differences in specific types of PTSD symptoms individuals experience might predict who will go on to develop SUD symptoms and thus benefit from new combined treatments. METHOD: In this study, we analyzed which clusters of PTSD symptoms predicted whether individuals with PTSD met criteria for alcohol use disorder. RESULTS: Analyses revealed that frequency and intensity of negative alterations in cognition and mood predicted SUD, but re experiencing symptoms, hyperarousal, and avoidance did not. CONCLUSIONS: Our results indicate that those who experience negative alterations in cognition and mood may be at increased risk of developing SUD, and that we may be able to predict which individuals in clinical settings will be strong candidates for new combined PTSD/SUD treatments. Further considerations for our results and for future directions are also discussed. (PsycINFO Database Record PMID- 29022725 TI - Reduced impact of alcohol use on next-day tiredness in older relative to younger adults: A role for sleep duration. AB - Recent work has suggested that older adults may be less susceptible to the next day effects of alcohol relative to younger adults. The effects of alcohol in younger adults may be mediated by sleep duration, but due to age differences in the contexts of alcohol use, this mediation process may not generalize to older adults. The present study examined age-group (younger vs. older adults) differences in how alcohol use influenced next-day tiredness during daily life. Reports of alcohol use, sleep duration, and next-day tiredness obtained on ~101 days from 91 younger adults (ages 20-31 years) and 75 older adults (ages 65-80 years) were modeled using a multilevel, moderated mediation framework. Findings indicated that (a) greater-than-usual alcohol use was associated with greater than-usual tiredness in younger adults only, (b) greater-than-usual alcohol use was associated with shorter-than-usual sleep duration in younger adults only, and (c) shorter-than-usual sleep duration was associated with greater tiredness in both younger and older adults. For the prototypical younger adult, a significant portion (43%) of the association between alcohol use and next-day tiredness could be explained assuming mediation through sleep duration, whereas there was no evidence of mediation for the prototypical older adult. Findings of age differences in the mediation process underlying associations among alcohol use, sleep, and tiredness provide insight into the mechanisms driving recent observations of reduced next-day effects of alcohol in older relative to younger adults. (PsycINFO Database Record PMID- 29022729 TI - The extent of skin bending rather than action possibilities explains why holes feel larger with the tongue than with the finger. AB - When small holes are felt with the tongue, they are perceived to be larger compared with when felt with the index finger. This oral illusion has not yet been consistently explained. From present action-specific accounts of perception, we derived a high-level sticking-action hypothesis to explain the oral illusion. In 5 experiments, we contrasted this hypothesis' predictions with predictions from the low-level bending hypothesis, which states that felt hole size decreases with decreasing bending of the skin at the hole's edges. Results from Experiments 1 to 3 showed that felt hole size decreases with the pliability of the exploring effector (tongue > index finger > big toe, big fingers > small fingers), which affects skin bending, and that size perception with the highly pliable tongue is more accurate than with the less pliable finger and toe. Experiment 4 showed that holes of intermediate size are perceived to be larger with the tongue's tip than with its dorsum. Finally, exploration styles that lessen the skin's bending (using low vs. high tongue forces in Experiment 5) decreased perceived hole size. Overall, the results favor the low-level bending hypothesis over the high-level sticking-action hypothesis. (PsycINFO Database Record PMID- 29022728 TI - Stereo viewing modulates three-dimensional shape processing during object recognition: A high-density ERP study. AB - The role of stereo disparity in the recognition of 3-dimensional (3D) object shape remains an unresolved issue for theoretical models of the human visual system. We examined this issue using high-density (128 channel) recordings of event-related potentials (ERPs). A recognition memory task was used in which observers were trained to recognize a subset of complex, multipart, 3D novel objects under conditions of either (bi-) monocular or stereo viewing. In a subsequent test phase they discriminated previously trained targets from untrained distractor objects that shared either local parts, 3D spatial configuration, or neither dimension, across both previously seen and novel viewpoints. The behavioral data showed a stereo advantage for target recognition at untrained viewpoints. ERPs showed early differential amplitude modulations to shape similarity defined by local part structure and global 3D spatial configuration. This occurred initially during an N1 component around 145-190 ms poststimulus onset, and then subsequently during an N2/P3 component around 260 385 ms poststimulus onset. For mono viewing, amplitude modulation during the N1 was greatest between targets and distracters with different local parts for trained views only. For stereo viewing, amplitude modulation during the N2/P3 was greatest between targets and distracters with different global 3D spatial configurations and generalized across trained and untrained views. The results show that image classification is modulated by stereo information about the local part, and global 3D spatial configuration of object shape. The findings challenge current theoretical models that do not attribute functional significance to stereo input during the computation of 3D object shape. (PsycINFO Database Record PMID- 29022730 TI - Integration of serial sensory information in haptic perception of softness. AB - Redundant estimates of an environmental property derived simultaneously from different senses or cues are typically integrated according to the maximum likelihood estimation model (MLE): Sensory estimates are weighted according to their reliabilities, maximizing the percept's reliability. Mechanisms underlying the integration of sequentially derived estimates from one sense are less clear. Here we investigate the integration of serially sampled redundant information in softness perception. We developed a method to manipulate haptically perceived softness of silicone rubber stimuli during bare-finger exploration. We then manipulated softness estimates derived from single movement segments (indentations) in a multisegmented exploration to assess their contributions to the overall percept. Participants explored two stimuli in sequence, using 2-5 indentations, and reported which stimulus felt softer. Estimates of the first stimulus's softness contributed to the judgments similarly, whereas for the second stimulus estimates from later compared to earlier indentations contributed less. In line with unequal weighting, the percept's reliability increased with increasing exploration length less than was predicted by the MLE model. This pattern of results is well explained by assuming that the representation of the first stimulus fades when the second stimulus is explored, which fits with a neurophysiological model of perceptual decisions (Deco, Rolls, & Romo, 2010). (PsycINFO Database Record PMID- 29022731 TI - Meta-analyses of cardiovascular reactivity to rumination: A possible mechanism linking depression and hostility to cardiovascular disease. AB - Rumination is a way of cognitive coping associated with depression and hostility that prolongs cardiovascular responses to stress. If repeated over time, the associated autonomic dysregulation may be 1 mechanism linking depression and hostility to cardiovascular disease. The current meta-analyses investigate the magnitude of cardiovascular responses (heart rate, diastolic blood pressure, and systolic blood pressure) to induced state sadness and angry rumination which are associated with depression and hostility, respectively. A literature search identified 43 studies (3,348 participants) meeting inclusion criteria. A random effects model was applied to calculate cardiovascular reactivity weighted effect sizes during induced sadness and angry rumination. Large and significant effect sizes were found for all analyses, with the standardized mean statistic, d, for single group designs ranging from .75 to 1.39. Results suggest that angry rumination may have larger cardiovascular effects than sadness rumination, and that rumination likely affects blood pressure more than heart rate. Potential implications of this relationship are discussed in light of limitations of the current study and existing rumination research. (PsycINFO Database Record PMID- 29022732 TI - PDTRT special section: Methodological issues in personality disorder research. AB - Personality Disorders: Theory, Research, and Treatment includes a rolling, ongoing Special Section concerned with methodological issues in personality disorder research. This third edition of this series includes two articles. The first is by Brian Hicks, Angus Clark, and Emily Durbin: "Person-Centered Approaches in the Study of Personality Disorders." The second article is by Steve Balsis: "Item Response Theory Applications in Personality Disorder Research." Both articles should be excellent resources for future research and certainly manuscripts submitted to this journal that use these analytic tools. (PsycINFO Database Record PMID- 29022734 TI - Item response theory applications in personality disorder research. AB - This article describes how item response theory (IRT) has begun to address several of the measurement limitations inherent in the personality disorder (PD) literature. In particular, we describe how IRT can be used to improve PD measurement precision, develop PD instruments, and inform PD theory. In closing, we address a key assumption of unidimensional IRT models, and address the need to move beyond these models to include multidimensional models. In this context, we outline what we see as a future direction in PD measurement. (PsycINFO Database Record PMID- 29022735 TI - The Culture and Protective Suicide Scale for Incarcerated Persons (CAPSSIP): A measure for evaluating suicide risk and protection within correctional populations. AB - Suicide risk and protective factors function for prisoners within the context of incarceration. The Culture and Protective Suicide Scale for Incarcerated Persons (CAPSSIP) is a tool designed to assess protective factors and cultural barriers to suicide for inmates. We present initial findings on the reliability, validity, factor structure, and utility of the CAPSSIP based on a trial conducted with inmates sent to an inpatient psychiatric program. Implications for suicide risk assessment processes in correctional settings are discussed. (PsycINFO Database Record PMID- 29022736 TI - Preliminary evaluation of treatment outcomes at a military intensive outpatient program. AB - Recent U.S. Army policy has established intensive outpatient programs at several installations as part of a comprehensive behavioral health system of care. This study presents retrospective program evaluation data from a case series without randomization or a control group at 1 recently established intensive outpatient program for active duty service members at a joint military installation. Out of 240 patients referred to the program at 1 installation, 200 enrolled in treatment. Of these, 169 completed treatment in a Skills & Resiliency Track (n = 97), Trauma Track (n = 34), or both (Combined Track; n = 38). Patients completed measures of posttraumatic stress symptoms and general distress throughout program enrollment. First year preliminary results show significant decreases in distress for those in the Skills & Resiliency and Combined groups. Trauma group patients showed significant decreases in posttraumatic stress symptoms. Patients in the Skills & Resiliency and Combined groups showed significant decreases in rates of psychiatric hospitalization. These results show potential for treating high-risk or treatment-resistant patients in a half-day intensive outpatient program. Lessons learned and recommendations for establishing intensive outpatient programming for the military are discussed. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29022733 TI - Person-centered approaches in the study of personality disorders. AB - Existing categorical models of personality disorder diagnoses capture heterogeneous populations in terms of symptom presentation and etiological influences on personality pathology. Though several well-validated alternative dimensional trait models (i.e., variable-centered approaches) of personality disorders have been developed, person-centered approaches can provide important additional information on both the phenotypic expression and etiology of personality pathology. We discuss the utility and necessary attributes of person centered or subtype models of personality disorders and briefly review statistical approaches and other methodological considerations, drawing specific examples from the psychopathy literature. We conclude by advocating a utilitarian approach whereby person-centered and variable-centered methods complement each other to better understand personality disorders. (PsycINFO Database Record PMID- 29022737 TI - Implementation of an integrative medicine treatment program at a Veterans Health Administration residential mental health facility. AB - A 4-week interdisciplinary integrative medicine program was recently added to the core treatment offerings for veterans participating in the Mental Health Residential Rehabilitation Program at the Dwight D. Eisenhower Veterans Affairs Medical Center. The new integrative medicine program teaches veterans about using meditative practices, nutrition, creative expression, tai chi, hatha yoga, sensory and breathing techniques, and lifestyle changes to enhance well-being. The groups are run by professionals from a variety of disciplines including recreation therapy, art therapy, occupational therapy, psychology, and nutrition. For the first 42 veterans to complete the program, the Short Form 12-item Health Survey was administered before and after participation in the integrative medicine program to assess the potential effectiveness of the program in enhancing physical and psychological well-being. In addition, a brief semistructured interview was used to assess veteran opinions about the program. Results suggest that the program was well received and that both physical and mental health scores improved from before to after treatment in this sample of veterans with complex behavioral health concerns. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29022738 TI - An Exploration of the Symmetry Between Crime-Causing and Crime-Reducing Factors: Implications for Delivery of Offender Services. AB - Both the Risk-Needs-Responsivity (RNR) and Structured Professional Judgment (SPJ) risk assessment approaches assume that a strong relationship exists between crime causing and crime reducing factors. Using a probation sample, the present article examines whether crime-causing and crime-reducing factors correspond. Probationers completed questionnaires where they were asked what factors were crime-causing and what factors were crime-reducing. Overall, the relationship between the crime-causing and crime-reducing factors was very weak-even after ruling out potential measurement and methodological artifacts (i.e., internal consistency, item stability, and acquiescent responding). Applied to an individual offender, the results suggest that conducting assessments and recommending interventions need not be bound by assumptions that risk factors for past crime must be targeted to reduce crime. New endeavors to develop causal and idiographic crime-reducing strategies warrant consideration. (PsycINFO Database Record PMID- 29022739 TI - The Offender Job Search Self-Efficacy Scale: Development and initial validation. AB - The purpose of this study was to develop the Offender Job Search Self-Efficacy Scale (OFJSSE) for the specific job search needs of the criminal justice population. Participants were 249 male inmates within 2 years of release from a state correctional facility in the southern region of the United States who identified mostly as Caucasian (56.2%), single (62.2%), working-class (45.4%) men with a mean age of 36.27 years (SD = 10.38). Initial validation data are described, including results of an exploratory factor analysis. Results indicated that the OFJSSE presents excellent reliability (alpha = .95) as well as good convergent and discriminant validity by having a strong, positive correlation, r = .73, p < .01, with another job search scale and having a negative correlation, r = -.19, p = .01, with a scale measuring a different construct (i.e., criminal thinking). Implications of the findings as well as limitations and future directions are discussed. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29022740 TI - Long-Term Room Temperature Storage of Dry Ribonucleic Acid for Use in RNA-Seq Analysis. AB - RNA is an essential biological material for research in genomics and translational medicine. As such, its storage for biobanking is an important field of study. Traditionally, long-term storage in the cold (generally freezers or liquid nitrogen) is used to maintain high-quality (in terms of quantity and integrity) RNA. Room temperature (RT) preservation provides an alternative to the cold, which is plagued by serious problems (mainly cost and safety), for RNA long term storage. In this study, we evaluated the performance of several RT storage procedures, including the RNAshell(r) from Imagene, where the RNA is dried and kept protected from the atmosphere, and the vacuum drying of RNA with additives such as the Imagene stabilization solution and a home-made trehalose solution. This evaluation was performed through accelerated (equivalent to 10 years for RNAshell) aging and real-time studies (4 years). To check RNA quality and integrity, we used RNA integrity number values and RNA-seq. Our study shows that isolation from atmosphere offers a superior protective effect for RNA storage compared with vacuum drying alone, and demonstrates that RNAshell permits satisfactory RNA quality for long-term RT storage. Thus, the RNA quality could meet the demand of downstream applications such as RNA-seq. PMID- 29022742 TI - Culture-Based Quantification with Molecular Characterization of Non-O157 and O157 Enterohemorrhagic Escherichia coli Isolates from Rectoanal Mucosal Swabs of Feedlot Cattle. AB - Enterohemorrhagic Escherichia coli (EHEC) strains are foodborne pathogens carried in the intestinal tracts of ruminants and shed in the feces. High concentrations (>=104 colony-forming units [CFU]/g) of EHEC in cattle feces are associated with contamination of hides, and subsequently, carcasses and beef. Several studies using agar media have quantified O157 but few have quantified non-O157 EHEC in samples from cattle. Thus, the objective of this study was to determine the concentration of O157 and non-O157 EHEC in cattle, and to characterize the associated EHEC isolates for their virulence potential. Two hundred feedlot steers were sampled by rectoanal mucosal swab (RAMS) every 35 days over four sampling periods, and a spiral plating method using modified Posse differential agar was used to quantify EHEC organisms in these samples. Bacterial colonies from agar plates were tested by multiplex PCR for Shiga toxin and intimin genes (stx and eae, respectively), and confirmed EHEC isolates (i.e., positive for both stx and eae) were serotyped and characterized for virulence genes using a microarray. Organisms detected in this study included O26, O101, O103, O109, O121, O145, O157, and O177 EHEC, with all except O121 quantifiable and measuring within a range from 9.0 * 102 to 3.0 * 105 CFU/g of RAMS sample. Organisms of the same EHEC serogroup were not detected in quantifiable concentrations from a single animal more than once. EHEC organisms most commonly detected at quantifiable levels were O26, O157, and O177. Interestingly, O26 EHEC isolates tested negative for stx1 but positive for stx2a. High concentrations of EHEC were detected in 11 (5.5%) of the steers at least once over the sampling period. These results indicate that in addition to O157, non-O157 EHEC are transiently present in high concentrations in the rectoanal mucosal region of cattle. PMID- 29022741 TI - Diagnostic accuracy of in-stent restenosis using model-based iterative reconstruction at coronary CT angiography: initial experience. AB - OBJECTIVE: The purpose of our study was to compare the diagnostic performance of coronary CT angiography (CTA) subjected to model-based iterative reconstruction (IR) or hybrid IR to rule out coronary in-stent restenosis. METHODS: We enrolled 16 patients who harboured 22 coronary stents. They underwent coronary CTA on a 320-slice CT scanner. The images were reconstructed with hybrid IR (AIDR 3D) and model-based IR (FIRST) algorithms. We calculated the stent lumen attenuation increase ratio and measured the visible stent lumen diameter. Two blinded observers visually graded the likelihood of in-stent restenosis (lesions >= 50%) on hybrid IR and FIRST images. RESULTS: The stent lumen attenuation increase ratio on FIRST- was lower than on AIDR 3D images (0.20 vs 0.32). The ratio of the visible- compared to the true stent lumen diameter was higher on FIRST- than AIDR 3D images (52.5 vs 47.5%). Invasive coronary angiography identified five stents (22.7%) with significant in-stent restenosis. The use of FIRST improved the sensitivity (60 vs 100%), positive (75.0 vs 83.3%) and negative predictive value (88.9 vs 100%) and the accuracy (86.4 vs 95.5%) for the detection of in-stent restenosis. Specificity was 94.1% for both reconstruction methods. CONCLUSION: The model-based IR algorithm may improve diagnostic performance for the detection of in-stent restenosis. Advances in knowledge: Compared to hybrid IR, the new model-based IR algorithm reduced blooming artefacts and improved the image quality. It can be expected to improve diagnostic performance for the detection of in-stent restenosis on coronary CTA images. PMID- 29022743 TI - Non-invasive evaluation of stable renal allograft function using point shear-wave elastography. AB - OBJECTIVE: To investigate the feasibility of point shear-wave elastography (SWE) in evaluating patients with stable renal allograft function who underwent protocol biopsies. METHODS: 95 patients with stable renal allograft function that underwent ultrasound-guided biopsies at predefined time points (10 days or 1 year after transplantation) were enrolled. Ultrasound and point SWE examinations were performed immediately before protocol biopsies. Patients were categorized into two groups: subclinical rejection (SCR) and non-SCR. Tissue elasticity (kPa) on SWE was measured in the cortex of all renal allografts. RESULTS: SCR was pathologically confirmed in 34 patients. Tissue elasticity of the SCR group (31.0 kPa) was significantly greater than that of the non-SCR group (24.5 kPa) (=0.016), while resistive index value did not show a significant difference between the two groups (p = 0.112). Tissue elasticity in renal allografts demonstrated significantly moderate negative correlation with estimated glomerular filtration rate (correlation coefficient = -0.604, p < 0.001). Tissue elasticity was not independent factor for SCR prediction on multivariate analysis. CONCLUSION: As a non-invasive tool, point SWE appears feasible in distinguishing between patients with SCR and without SCR in stable functioning renal allografts. Moreover, it may demonstrate the functional state of renal allografts. Advances in knowledge: On point SWE, SCR has greater tissue elasticity than non-SCR. PMID- 29022744 TI - A new lactam alkaloid from Portulaca oleracea L. and its cytotoxity. AB - A new lactam alkaloid named oleraciamide D (1), indentified as (5R)-4-(3-methoxy 4-hydroxyphenyl)-5-(4-hydroxyphenyl)-5,6-dihydropyridin-2(1H)-one, together with five known compounds, indole-3-aldehyde (2), portulacatone (3), N-trans feruloyloctopamine (4), N-trans-feruloyl-3'-O-methyldopamine (5) and N-trans feruloyltyramine (6) were isolated from Potulaca oleracea L. Among them, indole-3 aldehyde (2) was isolated from the medicine for the first time. The structure of the new alkaloid was elucidated via UHPLC-ESI-Q-TOF/MS, 1D NMR and 2D NMR. The five known compounds were established by comparing the 1H-NMR and 13C NMR with the reported literature. Oleraciamide D (1) showed cytotoxicity against SH-SY5Y cells when concentration at 50 uM by CCK-8 method. PMID- 29022745 TI - Real world adherence to oral anticoagulant in non-valvular atrial fibrillation patients in China. AB - BACKGROUND AND OBJECTIVE: Adherence to oral anticoagulants is crucial for the prevention of ischemic stroke in atrial fibrillation patients; however, evidence of oral-anticoagulant adherence from developing countries is still lacking. This study aimed to evaluate the current situation and predictors of oral anticoagulant adherence in non-valvular atrial fibrillation (NVAF) patients in China. METHODS: Records of NVAF patients were obtained from a regional claims database. Both initiation and adherence to oral anticoagulants were calculated from linked records. Factors of oral-anticoagulant initiation were identified using Cox regression. RESULTS: Among 33,463 NVAF patients, only 13.9% initialized warfarin treatment after the indexed hospital visit. Stratified by CHA2DS2-VASc scores, 20.9% of patients in the low-risk group were on warfarin, followed by 15.3% and 10.7% from the middle and high-risk groups, respectively. Among patients who initialized warfarin, only 40.4% filled the first repeat prescription within 3 months. Concurrent statin use, hypertension and heart failure were associated with higher warfarin initiation rate. Factors such as age above 75, female sex, manufacture workers, discharge from the primary-care center, antiplatelet use, and diabetes, ischemic and hemorrhagic stroke were associated with lower rate of warfarin initiation. Additionally, initiating warfarin treatment reduced risk of ischemic stroke in middle and high-risk patients. CONCLUSION: Oral anticoagulation was significantly under-used in NVAF patients in China. Age, sex, concurrent drug usage, and disease history were associated factors. Improving warfarin adherence was promising to reduce ischemic stroke risk of NVAF patients. PMID- 29022746 TI - Achieving the composite endpoint of HbA1c, body weight, and systolic blood pressure reduction with canagliflozin in patients with type 2 diabetes. AB - OBJECTIVE: In addition to achieving glycemic control, weight loss and blood pressure (BP) reduction are important components of type 2 diabetes mellitus (T2DM) management, as many patients with T2DM are overweight/obese and/or have hypertension. Canagliflozin, an SGLT2 inhibitor, has demonstrated improvements in HbA1c, body weight (BW), and systolic BP across a broad range of patients with T2DM. This analysis evaluated achievement of composite endpoints of HbA1c, BW, and systolic BP targets with canagliflozin versus placebo. METHODS: This post hoc analysis evaluated the proportion of T2DM patients achieving the composite endpoint of HbA1c reduction >=0.5%, BW reduction >=3%, and systolic BP reduction >=4mmHg with canagliflozin 100 and 300mg compared with placebo using pooled data from four 26-week, phase 3 studies (N = 2313; NCT01081834, NCT01106677, NCT01106625, NCT01106690). The proportion of patients achieving the composite endpoint of HbA1c <7.0%, BW reduction >=3%, and BP <130/80 mmHg was also evaluated. RESULTS: At week 26, greater proportions of patients met individual HbA1c, BW, and systolic BP targets with canagliflozin versus placebo. A greater proportion of patients treated with canagliflozin 100 or 300 mg versus placebo also achieved the composite endpoint of HbA1c reduction >=0.5%, BW reduction >=3%, and systolic BP reduction >=4 mmHg at week 26 (21.1%, 25.3%, and 5.7%, respectively; odds ratios [95% CI] of 4.5 [3.1, 6.5] and 5.6 [3.8, 8.2]). A greater proportion of patients also achieved the composite endpoint of HbA1c <7.0%, BW reduction >=3%, and BP <130/80 mmHg with canagliflozin 100 and 300 mg versus placebo (14.7%, 20.9%, and 3.3%, respectively; odds ratios [95% CI] of 5.2 [3.2, 8.4] and 8.4 [5.2, 13.5]). Canagliflozin was generally well tolerated, with a safety profile similar to that seen in other phase 3 studies. CONCLUSIONS: Patients with T2DM were more likely to achieve clinically important reductions in HbA1c, BW, and systolic BP with canagliflozin versus placebo. PMID- 29022747 TI - FDG-PET/CT findings of chronic active Epstein-Barr virus infection. PMID- 29022748 TI - Dependence of volume calculation and margin growth accuracy on treatment planning systems for stereotactic radiosurgery. AB - OBJECTIVE: Uncertainties in radiotherapy target structures are partly dependent on differences between volume calculation and margin growing methods in treatment planning systems (TPS). These uncertainties are exacerbated with very small structures such as those common in stereotactic radiosurgery. METHODS: Data from a national commissioning programme for SRS was used to assess variation in reported volumes for six benchmark cases, including malignant and benign indications. Reported volumes were compared both with and without any margins added according to local practice. RESULTS: 137 plans were submitted, with a total of 311 structures and covering seven TPS. For volumes < 1 cm3 agreement was within 0.05 cm3, and for volumes > 1 cm3 agreement was within 5%. Systematic differences were seen between TPS, partly because of different methods for calculating the end slice volume. About one third of structures had a margin added, of 1-2 mm. Most TPS over-grew the volumes, compared to the approximation of a perfect sphere, especially Pinnacle and Eclipse. CONCLUSION: Differences between volume calculation methods may lead to 5-10% variation in reported volumes from different TPS. This should be taken into account when comparing multicentre studies, and it is recommended that a minimum volume of 0.05 cm3 be used for any near-point doses to allow more consistent comparisons. When margins are added to small structures, there may be up to 40% difference to nominal margin size. Such differences are still small compared to interobserver variation in delineation. Advances in knowledge: This study quantifies the potential uncertainties in clinical volume calculation and margin growth with small radiosurgical targets. PMID- 29022749 TI - Pediatric precursor B-cell acute lymphoblastic leukemia with MYC 8q24 translocation - how to treat? AB - Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer. Within ALL, precursor B-cell disease predominates and now has survival >90%. Mature B cell, or Burkitt leukemia/lymphoma, is distinct from ALL and requires short intensive chemotherapy and with the addition of Rituximab, survival rates of >95% are achieved. Its defining characteristic is MYC translocation at 8q24. Patients who have features of both ALL and Burkitt leukemia/lymphoma represent a rare subpopulation of ALL and present a diagnostic and treatment conundrum. We have performed a systematic review on the occurrence of and treatment of MYC positive precursor B-ALL, reported between 1980 and 2016. The review highlighted a lack of data to guide any consensus about how to treat this important group of children and focused research in this area is needed. PMID- 29022750 TI - The cost-effectiveness of therapies to treat alcohol use disorders. AB - INTRODUCTION: Alcohol use is a major risk factor for mortality and morbidity burden, and alcohol use disorders contribute markedly to this burden. Effective interventions for alcohol use disorders improve health, and are potentially cost effective or even cost saving. Areas covered: We searched the literature for the cost-effectiveness of alcohol interventions. We included behavioral, pharmacological and combined interventions, and research from both a health care provider and a societal perspective. Overall, many economic research studies pointed towards existing cost-beneficial therapies from the perspective of a health care provider; i.e. the costs for interventions were smaller than the savings in services delivery in the years thereafter. Even if this was not the case, the interventions proved to be cost-effective with a threshold below $20,000 per quality-adjusted life year. Expert Commentary: While most of the economic research to date shows promising results, such research is relatively scarce and not always rigorous. More, and more rigorous economic research is needed to fully understand the potential impact of alcohol interventions. However, even with this research, something needs to be done to reduce stigmatization of alcohol use disorders in order to fully reap the benefits of alcohol interventions. PMID- 29022752 TI - Nutritional Characteristics of the Diets of Child and Adolescent Cancer Survivors. AB - PURPOSE: Diseases associated with prior treatment, such as obesity, have been described in cancer survivors. Recent studies have shown that current estimates of overweight do not differ from that in the general population, suggesting the influence of environmental factors, such as dietary intake. In this context, there is increasing interest in the examination of health behaviors that may modify and reduce the risk of overweight and obesity. This study aimed to evaluate the characteristics of dietary intake among child cancer survivors living in a developing country. METHODS: This retrospective cross-sectional study included children and adolescents up to 18 years of age. Dietary intake of the patients was assessed using 24-hour dietary recall. RESULTS: All age groups showed sufficient carbohydrate and protein consumption levels. The mean percentages of carbohydrate and protein consumption were 54% and 20.8%, respectively. Regarding lipid quality, survivors showed low consumption levels of polyunsaturated and monounsaturated fats. The consumption level of saturated fats was close to the upper limit. Fiber intake was below the recommended level in all patient categories, and its mean was 11.5 g/day. The average daily intake of some vitamins and minerals was below the recommended intake levels for all sexes and age groups, with values below 50% of suitability. CONCLUSION: The imbalance of lipids quality and low consumption of micronutrients demonstrated that the diet quality is poor in child cancer survivors. This favors the development of not only obesity but also other chronic diseases, and potentially predisposes such patients to secondary cancers. IMPLICATIONS FOR CANCER SURVIVORS: this is a relevant issue due to the increased number of childhood cancer survivors who develop obesity and chronic and metabolic complications due to inadequate food consumption. Our study may help understand, prevent, or minimize public health problems. PMID- 29022751 TI - Prospective psychometric characterization of hip and knee arthroplasty patients. AB - BACKGROUND: Psychiatric conditions and psychopharmacological treatments have been demonstrated to be important risk-factors for prolonged hospital length of stay, readmission and morbidity, following fast-track total hip (THA) and total knee arthroplasty (TKA). AIMS: The aim of the study was to provide a detailed description of the preoperative psychiatric characteristics of a well-defined patient population undergoing THA and TKA, using the 90-item Symptom Checklist (SCL-90-R). METHODS: A pre-surgical population of 2183 patients completed the full SCL-90-R prior to THA/TKA from 2015 to 2016. The SCL-90-R scale and total scores of the pre-surgical sample were compared to the scores of an age- and gender stratified Danish sample of healthy controls. A Mokken scalogram analysis was conducted to assess the scalability of the SCL-90-R in both samples. RESULTS: The Mokken analysis yielded acceptable scalability coefficients above 0.30 in all subscales of the SCL-90-R except psycoticism (0.28). There was no clinically significant difference (effect size = <0.50) in the SCL-90-R total score between the pre-surgical and the healthy controls samples, although pre-surgical patients had lower mean scores compared to the healthy controls in all subscales except somatization (effect size = -0.22). CONCLUSION: The Mokken analysis demonstrated that the SCL-90-R and its subscales express valid measures of psychopathology in our surgical sample. The psychiatric profile of the pre-surgical patient sample indicates that patients undergoing THA/TKA are not more burdened by psychiatric symptoms than a healthy control group with the exception of symptoms relating to somatization. PMID- 29022753 TI - Lower heart rate variability at baseline is associated with more consecutive intrusive memories in an experimental distressing film paradigm. AB - OBJECTIVES: First evidence suggests that lower heart rate variability (HRV) is associated with more cognitive control deficits, a risk factor for the development of intrusive memories. The aim of this study was to determine whether high-frequency (HF) and low-frequency/high-frequency (LF/HF) ratio components of HRV at rest before an intrusion-inducing stressor would predict consecutive intrusive memories. METHODS: Healthy female participants (n = 60) watched an established distressing film which induced intrusions. HF and LF/HF ratio were measured for 5 min prior to the stressor. The number of consecutive intrusions resulting from the distressing film was assessed throughout the following 4 days. RESULTS: The main effect LF/HF ratio was associated with more intrusive memories, whereas, the main effect HF was associated with more intrusions on a trend level. The time * HF and time * LF/HF ratio interactions were significant, indicating a different course of number of intrusions over the 4 days depending on HF and LF/HF ratio. The regression-based parameter estimates revealed a significant association of lower HF and number of intrusions on days 1 and 2 and a significant association of higher LF/HF (i.e. lower HRV) and number of intrusions on day 1. CONCLUSIONS: The results suggest that higher baseline LF/HF ratio (i.e. lower HRV) predicts more intrusive memories in healthy women after watching a distressing film. Furthermore, the results suggest that women with lower baseline HF and higher LF/HF ratio recover at a slower rate from watching the distressing film by showing a delayed decrease in intrusive memories. Our findings support the notion that lower baseline HRV before a trauma might be a vulnerability factor for subsequent intrusive memories. PMID- 29022754 TI - Different Protocols of Photobiomodulation Therapy of Hyposalivation. AB - OBJECTIVE: Photobiomodulation (PBM) therapy has proved to be effective for a wide range of oral pathologies including oral dryness, but the literature still lacks reports of clinical trials and protocols. The purpose of our study was to evaluate the effects of different wavelengths of PBM on salivation in patients suffering from hyposalivation aiming at determination of optimal treatment protocol. MATERIALS AND METHODS: This study included 30 patients whose major salivary glands were treated with low-intensity diode laser BTL2000 (Medical Technologies, s.r.o., Czech Republic) during 10 consecutive days. Patients were randomly assigned into two groups, each of 15 patients, and treated with PBM of 830 nm and PBM of 685 nm, respectively. The whole unstimulated and stimulated saliva quantities were measured each day during 10 days, before and after laser treatment, and at 10th day after treatment was ended. RESULTS: Results have shown that the laser treatment significantly improves salivation (p < 0.0001) in both groups after 10 days treatment. The salivation also remains improved 10 days after the end of treatment. The patients treated with PBM of 830 nm have had continuously higher values of quantity of saliva. CONCLUSIONS: Our results have shown that both laser wavelengths were effective in increasing salivary flow rate, and the improvement in salivation was statistically significant. The effect of treatment could be observed 10 days after the completion of treatment, thus providing evidence not only of stimulative effect but also indicating regenerative potential of PBM therapy. PMID- 29022755 TI - Randomized, double-blind, placebo-controlled, parallel-group, multi-center study of the safety and efficacy of ADAM zolmitriptan for the acute treatment of migraine. AB - Objective To determine the efficacy, tolerability, and safety of ascending doses of Adhesive Dermally-Applied Microarray (ADAM) zolmitriptan versus placebo for acute migraine treatment. Background ADAM is a novel patient-administered system for intracutaneous drug administration. In a phase 1 pharmacokinetic study, zolmitriptan administered using ADAM had much faster absorption than oral administration with higher exposure in the first two hours. Methods This was a multicenter, randomized, double-blind, placebo-controlled, parallel-group Phase 2b/3 study evaluating ADAM zolmitriptan 1 mg, 1.9 mg, and 3.8 mg versus placebo. Co-primary endpoints were pain freedom and freedom from most bothersome other migraine-associated symptom 2 hours post-dose. Results Of patients treated with ADAM zolmitriptan 3.8 mg or placebo, 41.5% and 14.2%, respectively were pain-free 2 hours post-dose ( p = 0.0001) and 68.3% and 42.9% were free from their most bothersome other symptom ( p = 0.0009). Due to the fixed sequential testing methodology, formal statistical significance was not established for secondary endpoints. However, the proportion of patients who were photophobia-free, phonophobia-free, and nausea-free at 2 hours post-dose was higher in the ADAM zolmitriptan 3.8 mg group compared with placebo, as were the percentages of patients who were pain-free, and who experienced pain relief up to 48 hours post dose. Systemic adverse events were consistent with previous triptan trials, and included dizziness, paresthesia, muscle tightness, and nausea, all of which occurred in < 5% of patients in any group. Application site reactions were generally mild and resolved within 48 hours, although erythema and bruising persisted for longer periods in some patients. Conclusion ADAM zolmitriptan 3.8 mg provides effective relief of migraine headache and associated most bothersome symptoms compared with placebo, and is well-tolerated. ClinicalTrials.gov NCT02745392. PMID- 29022757 TI - World conference special. PMID- 29022756 TI - Soluble guanylyl cyclase is a critical regulator of migraine-associated pain. AB - Background Nitric oxide (NO) has been heavily implicated in migraine. Nitroglycerin is a prototypic NO-donor, and triggers migraine in humans. However, nitroglycerin also induces oxidative/nitrosative stress and is a source of peroxynitrite - factors previously linked with migraine etiology. Soluble guanylyl cyclase (sGC) is the high affinity NO receptor in the body, and the aim of this study was to identify the precise role of sGC in acute and chronic migraine. Methods We developed a novel brain-bioavailable sGC stimulator (VL 102), and tested its hyperalgesic properties in mice. We also determined the effect of VL-102 on c-fos and calcitonin gene related peptide (CGRP) immunoreactivity within the trigeminovascular complex. In addition, we also tested the known sGC inhibitor, ODQ, within the chronic nitroglycerin migraine model. Results VL-102-evoked acute and chronic mechanical cephalic and hind-paw allodynia in a dose-dependent manner, which was blocked by the migraine medications sumatriptan, propranolol, and topiramate. In addition, VL-102 also increased c-fos and CGRP expressing cells within the trigeminovascular complex. Importantly, ODQ completely inhibited acute and chronic hyperalgesia induced by nitroglycerin. ODQ also blocked hyperalgesia already established by chronic nitroglycerin, implicating this pathway in migraine chronicity. Conclusions These results indicate that nitroglycerin causes migraine-related pain through stimulation of the sGC pathway, and that super-activation of this receptor may be an important component for the maintenance of chronic migraine. This work opens the possibility for negative sGC modulators as novel migraine therapies. PMID- 29022759 TI - No change in scope for extension of patent term for pharmaceutical substances under Australian law: an update. PMID- 29022758 TI - Pharmacokinetic Profiling of Conjugated Therapeutic Oligonucleotides: A High Throughput Method Based Upon Serial Blood Microsampling Coupled to Peptide Nucleic Acid Hybridization Assay. AB - Therapeutic oligonucleotides, such as small interfering RNAs (siRNAs), hold great promise for the treatment of incurable genetically defined disorders by targeting cognate toxic gene products for degradation. To achieve meaningful tissue distribution and efficacy in vivo, siRNAs must be conjugated or formulated. Clear understanding of the pharmacokinetic (PK)/pharmacodynamic behavior of these compounds is necessary to optimize and characterize the performance of therapeutic oligonucleotides in vivo. In this study, we describe a simple and reproducible methodology for the evaluation of in vivo blood/plasma PK profiles and tissue distribution of oligonucleotides. The method is based on serial blood microsampling from the saphenous vein, coupled to peptide nucleic acid hybridization assay for quantification of guide strands. Performed with minimal number of animals, this method allowed unequivocal detection and sensitive quantification without the need for amplification, or further modification of the oligonucleotides. Using this methodology, we compared plasma clearances and tissue distribution profiles of two different hydrophobically modified siRNAs (hsiRNAs). Notably, cholesterol-hsiRNA presented slow plasma clearances and mainly accumulated in the liver, whereas, phosphocholine-docosahexaenoic acid hsiRNA was rapidly cleared from the plasma and preferably accumulated in the kidney. These data suggest that the PK/biodistribution profiles of modified hsiRNAs are determined by the chemical nature of the conjugate. Importantly, the method described in this study constitutes a simple platform to conduct pilot assessments of the basic clearance and tissue distribution profiles, which can be broadly applied for evaluation of new chemical variants of siRNAs and micro-RNAs. PMID- 29022760 TI - Terpenoids from the barks of Magnolia maudiae (Dunn) Figlar. AB - A new germacrenolide (1) and fourteen known terpenoids (2-15) were isolated from the barks of Magnolia maudiae (Dunn) Figlar (Magnoliaceae). The structure of (7alphaH,11betaH)-2alpha,8alpha-dihydroxy-4alpha,5beta-epoxy-germacr-1(10)-en 6alpha,12-olide (1) was elucidated by physical and spectroscopic data analysis, including 1D, 2D NMR and HR-ESI-MS. Lyratol F (9) was isolated from Magnolia for the first time. The structures of known compounds were established by comparing their spectroscopic data with those in literatures. PMID- 29022762 TI - Polymorphism rs11656696 in GAS7 Is Not Associated with Primary Open Angle Glaucoma in a Saudi Cohort. AB - AIMS: To conduct a case-control study to investigate the association between the polymorphism rs11656696 located in the growth arrest-specific 7 gene (GAS7)on human chromosome 17p13.1 and primary open angle glaucoma (POAG). METHODS: The polymorphism rs11656696 was genotyped using the TaqMan(r) assay in 187 subjects comprising 92 unrelated POAG cases and 95 controls of Saudi Arabian origin. RESULTS: Association analysis between cases and controls revealed no significant genotype distribution under additive (p = 0.225), dominant (p = 0.635), or recessive (p = 0.085) models. Moreover, the allele frequency distribution was also nonsignificant (p = 0.70). The minor "A" allele frequency was 0.35 and 0.41 among POAG cases and controls, respectively. In addition, specific clinical indices used to assess severity of glaucoma such as intraocular pressure (IOP), cup/disk ratio, and number of antiglaucoma medications also did not show any significant genotype distribution in POAG cases. Moreover, a binary logistic regression analysis did not show any significant effect of age, sex, or genotype on disease outcome. CONCLUSION: Polymorphism rs11656696 is not associated with POAG nor any of its endophenotypic traits such as IOP and cup/disk ratio and is thus not a risk factor for POAG in this Saudi cohort. PMID- 29022761 TI - Noninvasive Ocular Drug Delivery System of Dexamethasone Sodium Phosphate in the Treatment of Experimental Uveitis Rabbit. AB - PURPOSE: To investigate the efficacy and safety of dexamethasone sodium phosphate administered through Visulex system (DSP-Visulex) in treating experimental uveitis. METHODS: Uveitis was induced in rabbits by subcutaneous injections of complete Freund's adjuvant and an intravitreal injection of H37RA antigen. After induction, the animals of the control group received no treatment and the others received various treatment regimens of DSP-Visulex. Each regimen was different in DSP strength (4%, 8%, and 15%), application time, or treatment frequency. Efficacy and safety of DSP-Visulex were evaluated by ophthalmic observations and histopathological examinations for ocular inflammations and pathology. RESULTS: The control group exhibited panuveitis with significant inflammation in the vitreous, choroid, and retina, but less in the conjunctiva, cornea, and anterior chamber. The uveitis occurred within 24 h after induction and persisted throughout the study in the control group. All treatments showed some reduction in inflammation in the vitreous, choroid, and retina. The higher dose regimens generally showed more rapid and higher degree of resolution than the lower dose regimens. The posterior eye tissues of the 15% and 8% DSP-Visulex appeared normal with minimal or no inflammation, whereas the untreated eye and the 4% DSP-Visulex eyes showed minimal response. CONCLUSIONS: All DSP-Visulex regimens suppressed the signs of inflammation and were well tolerated over the course of a 29-day study. The 8% and 15% DSP-Visulex treatment regimens were safe and efficacious for anterior, intermediate, and posterior uveitis. On the other hand, the 4% DSP Visulex regimen may only be considered for anterior and intermediate uveitis. PMID- 29022764 TI - Proteasome and C-reactive protein inflammatory response in children undergoing shorter and longer lasting laparoscopic cholecystectomy. AB - Operations of varying duration cause the release of a number of inflammatory mediators, in particular cytokines which lead to proteasome and acute-phase reactions. The purpose of this novel human study, was to characterize inflammatory response in children undergoing laparoscopic cholecystectomy, by analyzing changes in selected inflammatory mediators: C-reactive protein concentration and circulating 20S proteasome activity following surgical injury and to correlate them with the duration of the surgical procedure. Plasma C reactive protein concentration (CRP) was determined by standard biochemical laboratory procedures. Proteasome activity in the plasma of children was assessed using Suc-Leu-Leu-Val-Tyr-AMC peptide substrate. Statistically significant increase in the plasma proteasome activity and C-reactive protein concentration, was noted (p < .05) in children after laparoscopic cholecystectomy. We found the correlation between the 20S proteasome activity and the length of the procedure. In children undergoing longer lasting laparoscopic cholecystectomy the proteasome activity was much higher than in patients having shorter surgical procedure. The CRP concentration and 20S proteasome activity significantly increase after surgery, but only 20S proteasome activity correlate with the length of the surgery. This may confirm that CRP is only an indicator of pathological state, while the function of the proteasomes is more complex because of their participation in the processes of repair and wound healing, and in the removal of damaged proteins. PMID- 29022763 TI - Impact of practice, provider and patient characteristics on delivering screening and brief advice for heavy drinking in primary healthcare: Secondary analyses of data from the ODHIN five-country cluster randomized factorial trial. AB - BACKGROUND: The implementation of primary healthcare-based screening and advice that is effective in reducing heavy drinking can be enhanced with training. OBJECTIVES: Undertaking secondary analysis of the five-country ODHIN study, we test: the extent to which practice, provider and patient characteristics affect the likelihood of patients being screened and advised; the extent to which such characteristics moderate the impact of training in increasing screening and advice; and the extent to which training mitigates any differences due to such characteristics found at baseline. METHODS: A cluster randomized factorial trial involving 120 practices, 746 providers and 46 546 screened patients from Catalonia, England, the Netherlands, Poland, and Sweden. Practices were randomized to receive training or not to receive training. The primary outcome measures were the proportion of adult patients screened, and the proportion of screen-positive patients advised. RESULTS: Nurses tended to screen more patients than doctors (OR = 3.1; 95%CI: 1.9, 4.9). Screen-positive patients were more likely to be advised by doctors than by nurses (OR = 2.3; 95%CI: 1.4, 4.1), and more liable to be advised the higher their risk status (OR = 1.9; 95%CI: 1.3, 2.7). Training increased screening and advice giving, with its impact largely unrelated to practice, provider or patient characteristics. Training diminished the differences between doctors and nurses and between patients with low or high risk status. CONCLUSIONS: Training primary healthcare providers diminishes the negative impacts that some practice, provider and patient characteristics have on the likelihood of patients being screened and advised. Trial registration ClinicalTrials.gov. Trial identifier: NCT01501552. PMID- 29022765 TI - Polymorphisms in genes involved in vasoactive eicosanoid synthesis affect cardiovascular risk in renal transplant recipients. AB - OBJECTIVE: Arachidonic acid metabolism by cytochrome P450 (CYP) epoxygenases leads to epoxyeicosatrienoic acids (EETs), which are eicosanoids with vasodilator and anti-inflammatory properties. We aim to determine whether genetic variability in these routes may contribute to cardiovascular (CV) risk in renal transplant recipients. METHODS: In a cohort of 355 patients, we determined the presence of two polymorphisms, CYP2C8*3 and CYP2J2*7, known to affect eicosanoid levels. Associations with CV mortality, CV event-free long-term survival and graft survival were retrospectively investigated by logistic regression models. RESULTS: CYP2J2*7 showed a statistical trend towards higher CV mortality (p = .06) and lower cardiac or cerebral event-free long-term survival (p = .05), whilst CYP2C8*3 displayed a significant inverse association with the risk of CV event (hazard ratio [HR] = 0.34 [0.15-0.78], p = .01). The association of CYP2J2*7 with CV mortality became significant when the analysis was restrained to 316 patients without a history of CV events prior to transplantation (HR = 15.72 [2.83-91.94], p = .005). In this subgroup of patients both single nucleotide polymorphisms (SNPs) were significantly associated with event-free survival. HR values were 5.44 (1.60-18.51), p = .007 and 0.26 (0.09-0.75), p = .012 for CYP2J2*7 and CYP2C8*3, respectively. CONCLUSIONS: Our results show, for the first time to our knowledge, that two SNPs in CYP2C8 and CYP2J2, which synthesize EETs, may modify CV outcomes in renal transplant recipients, a population that is already at a high risk of suffering these events. PMID- 29022766 TI - A solution-focused approach to understanding patient motivation in diabetes self management: Gender differences and implications for primary care. AB - OBJECTIVE: Healthcare providers often neglect to recognize the role they play in motivating patients with diabetes to perform self-management. Our aims were to understand what motivates patients with diabetes to implement recommended self management practices and understand the role of the primary care team in patient motivation. METHODS: We use a solution-focused qualitative approach, supplemented with a quantitative scale. We used a purposive sampling strategy to invite patients with uncontrolled diabetes. Semi-structured telephone interviews were conducted and analyzed using content and thematic analysis. RESULTS: Key motivators were strong support systems that included family and friends, the physician's communication style and message, fear of deterioration, and other intrinsic factors. Female family members were described as supportive; not all married women felt supported by their husbands. Women were more influenced by empathy and concern from their doctor, compared to men who were motivated by improved health literacy. Women with few family or friends were more disadvantaged, regardless of race/ethnicity. DISCUSSION: While physicians play a vital role in motivating their patients, female patients may depend on this empathy more than males. The interdisciplinary care team can play an important role in helping patients create a support network where it may not exist. PMID- 29022767 TI - alpha-Glucosidase inhibitory and cytotoxic botryorhodines from mangrove endophytic fungus Trichoderma sp. 307. AB - One new depsidone, botryorhodine H (1), together with three known analogues, botryorhodines C, D and G (2-4), were obtained from the mangrove endophytic fungus Trichoderma sp. 307 by co-culturing with Acinetobacter johnsonii B2. Structures were determined by 1D and 2D NMR analyses and high-resolution mass spectrum. Compounds 1-3 showed alpha-glucosidase inhibitory activity with IC50 ranging from 8.1 to 11.2 MUM, and compound 1 exhibited potent cytotoxicity against rat prolactinoma MMQ and rat pituitary adenoma GH3 cell lines (IC50 = 3.09 and 3.64 MUM). PMID- 29022769 TI - Aiming for Quality Improvement: Aligning Population Health and Higher Education. PMID- 29022770 TI - Exploring Adolescents' Cancer Journey Through Photovoice: A Narrative Synthesis. AB - PURPOSE: Photovoice is a novel and promising intervention for working with youth in healthcare settings. Despite this, few studies have examined the efficacy of photovoice as a clinical tool for working with teenagers who are on their cancer journey. To better understand the needs of teenagers with cancer and the ways that photovoice can be utilized to address these needs, a systematic review of the literature was undertaken. METHODS: Keyword searches of six databases were completed, including MEDLINE, EMBASE, PsycINFO, Social Work Abstracts, Sociological Abstracts, and Health and Psychosocial Instruments. Searches were limited to articles focusing on the psychosocial needs of adolescents, aged 13 17, who were on active cancer treatment. RESULTS: Sixty-four articles were identified that discussed the psychosocial needs of teenagers on active cancer treatment. The needs of these teenagers can be understood as being influenced by the physical changes and symptoms, psychological impact of diagnosis and treatment, short- and long-term social impacts of cancer, impact on holistic well being, and need for clear, age-appropriate communication. Among these articles, only four articles used photovoice as a methodology and none examined the impact of photovoice as an intervention for teenagers who were currently on active treatment. CONCLUSION: Photovoice is uniquely positioned among other psychosocial interventions to help address the needs of teenagers on their cancer journey. Despite this, few researchers have examined the efficacy of photovoice as a psychosocial intervention for teenagers who are currently on active treatment. PMID- 29022768 TI - Molecular Survey on Rickettsia spp., Anaplasma phagocytophilum, Borrelia burgdorferi Sensu Lato, and Babesia spp. in Ixodes ricinus Ticks Infesting Dogs in Central Italy. AB - Dogs are a common feeding hosts for Ixodes ricinus and may act as reservoir hosts for zoonotic tick-borne pathogens (TBPs) and as carriers of infected ticks into human settings. The aim of this work was to evaluate the presence of several selected TBPs of significant public health concern by molecular methods in I. ricinus recovered from dogs living in urban and suburban settings in central Italy. A total of 212 I. ricinus specimens were collected from the coat of domestic dogs. DNA was extracted from each specimen individually and tested for Rickettsia spp., Borrelia burgdorferi sensu lato, Babesia spp., and Anaplasma phagocytophilum, using real-time and conventional PCR protocols, followed by sequencing. Sixty-one ticks (28.8%) tested positive for TBPs; 57 samples were infected by one pathogen, while four showed coinfections. Rickettsia spp. was detected in 39 specimens (18.4%), of which 32 were identified as Rickettsia monacensis and seven as Rickettsia helvetica. Twenty-two samples (10.4%) tested positive for A. phagocytophilum; Borrelia lusitaniae and Borrelia afzelii were detected in two specimens and one specimen, respectively. One tick (0.5%) was found to be positive for Babesia venatorum (EU1). Our findings reveal the significant exposure of dogs to TBPs of public health concern and provide data on the role of dogs in the circulation of I. ricinus-borne pathogens in central Italy. PMID- 29022771 TI - Lateral orbitofrontal cortex activity is modulated by group membership in situations of justified and unjustified violence. AB - The role of the orbitofrontal cortex (OFC) in moral decision-making is well established. However, OFC activity is highly context dependent. It is affected by the extent to which choices are morally justified and whom they concern. In the current study, we specifically focus on contextual factors and investigate the differential role of the OFC during justified and unjustified violence towards ingroup versus outgroup members. Muslims were chosen as the outgroup, as they are currently stereotypically seen as an outgroup and a potential threat by some Non Muslims. Importantly, we also introduce a context where participants are the actual agents responsible for doing harm. During fMRI scanning, Non-Muslim participants had to decide to either shoot a Non-Muslim (i.e., ingroup member) or Muslim (outgroup member) depending on whether they believed the target was holding a gun or an object. Neuroimaging results showed increased activation in the lateral OFC (lOFC) in the three contrasts that were distressing: 1) during unjustifiable killing; 2) when being killed; and 3) when confronted by an outgroup member with a gun. Together, these results provide important insights into the neurocognitive mechanisms involved in intergroup violence and highlight the critical role of the lOFC in context dependent social decision-making. PMID- 29022772 TI - Formulation and delivery strategies of ibuprofen: challenges and opportunities. AB - Ibuprofen, a non-steroidal anti-inflammatory drug (NSAID), is mostly administered orally and topically to relieve acute pain and fever. Due to its mode of action this drug may be useful in the treatment regimens of other, more chronic conditions, like cystic fibrosis. This drug is poorly soluble in aqueous media and thus the rate of dissolution from the currently available solid dosage forms is limited. This leads to poor bioavailability at high doses after oral administration, thereby increasing the risk of unwanted adverse effects. The poor solubility is a problem for developing injectable solution dosage forms. Because of its poor skin permeability, it is difficult to obtain an effective therapeutic concentration from topical preparations. This review aims to give a brief insight into the status of ibuprofen dosage forms and their limitations, particle/crystallization technologies for improving formulation strategies as well as suggesting its incorporation into the pulmonary drug delivery systems for achieving better therapeutic action at low dose. PMID- 29022773 TI - Native paraneurial tissue and paraneurial adhesions alter nerve strain distribution in rat sciatic nerves. AB - Paraneurial adhesions have been implicated in the pathological progression of entrapment neuropathies. Surgical decompression of adhesions is often performed, with the intent of restoring nerve kinematics. The normal counterpart of adhesions, native paraneurium, is also thought to influence nerve deformation and mobility. However, influences of native or abnormal paraneurial structures on nerve kinematics have not been investigated. We measured regional strains in rat sciatic nerves before and immediately after decompression of native paraneurial tissue, and before and after decompression of abnormal paraneurial adhesions, which formed within 6 weeks of the initial decompression. Strain was significantly higher in the distal-femoral than in the mid-femoral region of the nerve before either decompression. Decompression of native and abnormal paraneurial tissue removed this regional strain difference. Paraneurial tissues appear to play a major role in distributing peripheral nerve strain. Normal nerve strain distributions may be reconstituted following decompression, even in the presence of paraneurial adhesions. PMID- 29022774 TI - The management of chronic non-arthritic scapholunate dissociation: a systematic review. AB - : A systematic review was conducted to identify the best management for chronic scapholunate dissociation. EMBASE, MEDLINE, and CENTRAL were searched from 1965 2016. A narrative synthesis was performed. One thousand, one hundred and ninety one citations were identified, of which 17 had final analysis. In all interventions, the pain score at 2 years reduced from 6.0 to 2.8 with similar effect from capsulodesis and tenodesis techniques. Overall there was an 18% loss of flexion arc. Radial to ulnar arc improved in capsulodesis (+19%; n = 45) and worsened in tenodesis (-6%; n = 45). Grip strength was better in capsulodesis (+31%; n = 64 versus + 11%; n = 56). There was insufficient evidence to link radiological outcome with clinical outcome. Rates of complications (20%) and CRPS (3.8%) were high, with implications for patient consent. Due to heterogeneity in data collection, the lack of comparative studies and short-term follow-up, no conclusion regarding the superiority of a single technique was possible. Longer term comparative studies are required, as are natural history studies. A minimum data set has been advised. LEVEL OF EVIDENCE: II. PMID- 29022775 TI - Arthroscopic versus open excision of dorsal ganglion cysts: a systematic review. AB - : We conducted a systematic review comparing recurrence and complication rate following open versus arthroscopic excision of ganglion cysts. Sixteen full-text articles were included. The pooled recurrence rate of open excision was 20% (range: 5.6-40.7%) with Q value of 27 and I2 of 82%. The pooled recurrence rate of arthroscopic excision was 9% (range: 0-17%) with Q value of 10 and I2 of 2%. Eleven of 16 studies were low quality or had a high risk of bias; however, excluding low quality studies or those with high risk of bias produced similar recurrence rates in arthroscopic and open excision (7.9% versus 9.8%). For the subset of studies with complete reporting of complications, rates were similar in open and arthroscopic excision (6% versus 4%). Our review suggests that arthroscopic and open approaches have comparable outcome profiles. Nevertheless, standardized study methods with adequate powering are required to collect high quality data, allowing for greater confidence in conclusions regarding these two approaches for existing ganglion cysts. LEVEL OF EVIDENCE: II. PMID- 29022776 TI - Classification of synpolydactyly: experience in 10 children. PMID- 29022777 TI - Feasibility of modified Dixon MRI techniques for hepatic fat quantification in hepatic disorders: validation with MRS and histology. AB - OBJECTIVE: To assess the feasibility of proton density fat fraction (PDFF) MRI for estimating hepatic fat fraction with magnetic resonance spectroscopy (MRS) and histology as references and to investigate intrahepatic fat distribution and variability. METHODS: Between November 2014 and September 2015, 85 adults (48 males, 47 females) who underwent MRI-PDFF (n = 139), MRS-PDFF (n = 49) and liver biopsy (n = 29) were enrolled in this study. Data were compared using linear regression. MRI-PDFF and standard deviations (variability) and differences between maximum and minimum PDFF (PDFF range) for whole liver, the lobes, and segment levels were calculated for each subject. RESULTS: Whole-liver MRI-PDFF showed good correlation with MRS-PDFF (r = 0.961) and histologic degree of hepatic steatosis (sigma = 0.809). Hepatic fat fraction is different between lobes and segments. Mean PDFF and mean PDFF range of the right lobe were higher than for the left lobe, whereas variability in the right lobe was lower than in the left lobe. CONCLUSION: MRI-PDFF is an accurate non-invasive method for quantifying hepatic fat for various hepatic disorders, and may be preferable for measuring fat fraction in the right liver for more precise values in longitudinal monitoring, while avoiding FF measurement in the left liver. Advances in knowledge: MRI-PDFF provides a non-invasive and accurate quantification of hepatic steatosis in various hepatic disorders. It would be preferable to measure FF in the right liver than in the left liver. PMID- 29022778 TI - The variability in Oxford hip and knee scores in the preoperative period: is there an ideal time to score? AB - Background All NHS-funded providers are required to collect and report patient reported outcome measures for hip and knee arthroplasty. Although there are established guidelines for timing such measures following arthroplasty, there are no specific time-points for collection in the preoperative period. The primary aim of this study was to identify whether there was a significant amount of variability in the Oxford hip and knee scores prior to surgical intervention when completed in the outpatient clinic at the time of listing for arthroplasty or when completed at the preoperative assessment clinic. Methods A prospective cohort study of patients listed for primary hip or knee arthroplasty was conducted. Patients were asked to fill in a preoperative Oxford score in the outpatient clinic at the time of listing. They were then invited to fill in the official outcome measures questionnaire at the preoperative assessment clinic. The postoperative Oxford score was then completed when the patient was seen again at their postoperative follow up in clinic. Results Of the total of 109 patients included in this study period, there were 18 (17%) who had a worse score of 4 or more points difference and 43 (39.4%) who had an improvement of 4 or more points difference when the scores were compared between time of listing at the outpatient and at the preoperative assessment clinic. There was a statistically significant difference (P = 0.0054) in the mean Oxford scores. Conclusions The results of our study suggest that there should be standardisation of timing for completing the preoperative patient-reported outcome measures. PMID- 29022779 TI - Short-term surgical outcomes and patient quality of life between robotic and laparoscopic extralevator abdominoperineal excision for adenocarcinoma of the rectum. AB - Introduction Some studies advocate a laparoscopic extralevator abdominoperineal excision (l-ELAPE) approach for low rectal cancer. The da VinciTM robot (r-ELAPE) technique has potential to overcome some limitations of l-ELAPE, such as reduction of the learning curve and more precise tissue handling. It is unknown whether this approach results in improved surgical or quality of life outcomes compared with l-ELAPE. This study aimed to address this issue. Methods Consecutive patients having undergone either robotic or laparoscopic ELAPE for adenocarcinoma were studied. All operations were performed by two surgeons experienced in laparoscopic and recently introduced robotic surgery. Surgical outcomes were determined by postoperative histology and short-term complications. Quality of life was prospectively assessed using the European Organisation for Research and Treatment of Cancer QLC-CR30 and QLC-CR29 questionnaires. Results A total of 22 patients (11 r-ELAPE) with a median follow-up of 13 months (8 months robotic; 22 months laparoscopic) were studied. The groups were similarly matched for age, gender, American Society of Anesthesiologists status, preoperative chemoradiotherapy and tumour height. All had R0 resection. There was no significant difference in short-term surgical outcomes between groups. There was no significant difference in mean global health scores between the two groups (74 +/- 14 r-ELAPE vs. 73 +/- 10 l-ELAPE). The r-ELAPE group had a lower mean impotence score compared with the I-ELAPE group (55.5 +/- 40 vs. 72.2 +/- 44), although this was not statistically significant. Conclusions The newly introduced r-ELAPE was non-inferior to l-ELAPE in either patient quality of life or surgical outcomes. Robotic surgery could be particularly beneficial in the technically challenging area of low rectal cancer surgery with a shorter learning curve than laparoscopy. PMID- 29022780 TI - Primary urethral reconstruction results in penile fracture. AB - Objective This study assessed primary urethral reconstruction results in patients with a penile fracture. Materials and methods Between January 2005 and April 2016, patients who underwent primary urethral reconstruction due to penile fracture were called for a follow-up. Epidemiological and clinical presentation data and operative findings were reviewed retrospectively. Partial urethral lesions were primarily treated with interrupted absorbable sutures over urethral catheter. In cases of complete urethral lesion, tension-free end-to-end anastomosis was performed. From the third month after surgery, all patients were interviewed using the International Prostate Symptom Score questionnaire and uroflowmetry. Retrograde urethrocystography was used in patients with urinary symptoms or altered uroflowmetry to rule out or confirm urethral stenosis. Results Of 175 patients with penile fractures, 27 (15.4%) had associated urethral injury. All patients were diagnosed with penile fracture by means of clinical history and physical examination. No subsequent examinations were conducted. Ages varied from 30 years to 58 years old (mean 39.2 years). All fractures resulted from sexual activity. Reported sexual positions were 'doggy style' position in eight cases (61.5%) and with the 'man on top' in five cases (38.4%). Ten patients (76.9%) experienced haematuria, ten (76.9%) had urethral bleeding and four (30.7%) suffered urinary retention. Unilateral and bilateral injury of the corpus cavernosum was observed in four (30.7%) and nine (69.2%) patients, respectively; partial injury was found in nine cases (69.3%) and complete urethral injury was noticed in four cases (30.7%). All cases of complete urethral injury were associated with bilateral lesion of the corpus cavernosum. Six patients who had uroflowmetry with maximum urinary flow rate below 15 ml/s and/or had IPSS above 7 underwent retrograde urethrocystogram, and this was normal in all cases, excluding the possibility of urethral stenosis. Two patients (15.3%) experienced surgical postoperative complications represented by an urethrocutaneous fistula and a subcutaneous abscess adjacent to the end-to-end anastomosis area. Conclusions Penile fracture is a rare urological emergency, especially when it is associated with a urethral lesion. This must be suspected when the clinical picture is suggestive or in cases of high-energy trauma, especially in bilateral lesions of the corpus cavernosum. Complementary imaging methods are not needed in these cases and immediate exploration should not be delayed. Primary urethroplasty produces satisfactory results with low complication levels. Nonetheless, prospective studies with larger samples should be conducted. PMID- 29022781 TI - Near-infrared autofluorescence imaging to detect parathyroid glands in thyroid surgery. AB - Objective To identify and save parathyroid glands during thyroidectomy by displaying their autofluorescence. Methods Autofluorescence imaging was carried out during thyroidectomy with and without central lymph node dissection. After visual recognition by the surgeon, the parathyroid glands and the surrounding tissue were exposed to near-infrared light with a wavelength of 690-770 nm using a modified Karl Storz near infrared/indocyanine green endoscopic system. Parathyroid tissue was expected to show near infrared autofluorescence at 820 nm, captured in the blue channel of the camera. Results We investigated 41 parathyroid glands from 20 patients; 37 glands were identified correctly based on near-infrared autofluorescence. Neither lymph nodes nor thyroid revealed substantial autofluorescence and nor did adipose tissue. Conclusions Parathyroid tissue is characterised by showing autofluorescence in the near-infrared spectrum. This effect can be used to identify and preserve parathyroid glands during thyroidectomy. PMID- 29022783 TI - Current predictive models do not accurately differentiate between single and multi gland disease in primary hyperparathyroidism: a retrospective cohort study of two endocrine surgery units. AB - Background Minimally invasive parathyroidectomy (MIP) for primary hyperparathyroidism is dependent upon accurate prediction of single-gland disease on the basis of preoperative imaging and biochemistry. The aims of this study were to validate currently available predictive models of single-gland disease in two UK cohorts and to determine if these models can facilitate MIP. Methods This is a retrospectively cohort study of 624 patients who underwent parathyroidectomy for primary hyperparathyroidism in two centres between July 2008 and December 2013. Two recognised models: CaPTHUS (preoperative calcium, parathyroid hormone, ultrasound, sestamibi, concordance imaging) and Wisconsin Index (preoperative calcium, parathyroid hormone) were validated for their ability to predict single gland disease. Results The rates of single- and multi-gland disease were 491 (79.6%) and 126 (20.2%), respectively. Cure rates in centres 1 and 2 were 93.2% and 93.8%, respectively (P = 0.789). The positive predictive value (PPV) of CaPTHUS score . 3 in predicting single-gland disease was 84.6%, compared with 100% in the original report. CaPTHUS . 4 and 5 had a PPV of 85.1 and 87.1, respectively. There were no differences in Wisconsin Index (WIN) between patients with single- and multi-gland (P = 0.573). A WIN greater than 1600 and weight of excised gland greater than 1 g had a positive predictive value of 86.7% for single-gland disease. Conclusions The use of CaPTHUS and WIN indices without intraoperative adjuncts (such as IOPTH) had the potential to result in failure to cure in up to 15% (CaPTHUS) and 13% (WIN) of patients treated by MIP targeting a single enlarged gland. PMID- 29022784 TI - The exploding tumour on breast magnetic resonance imaging: an infected skin comedo. AB - A 61-year-old woman with a histologically proven invasive lobular carcinoma entered a clinical trial, which involved repeat magnetic resonance imaging (MRI). The protocol of the repeated MRI described a T4 breast cancer with involvement of the skin (Fig 1). There were only 17 days between the first and second MRI and during this short time it appeared that there had been rapid disease progression. On the initial MRI, a skin comedo could be seen in the left breast close to the tumour. The patient had squeezed the skin comedo, which had become infected. The second MRI captured the infected skin comedo, which had the appearance of an extensive breast cancer with skin involvement. The patient could be mismanaged if the clinician does not correlate the clinical findings with the radiological findings. PMID- 29022782 TI - Intramuscular compared with subcutaneous transposition for surgery in cubital tunnel syndrome. AB - Background There is no consensus on the most effective surgical technique in the treatment of cubital tunnel syndrome. Anterior subcutaneous transposition (AST) and anterior intramuscular transposition (AIT) are common surgical treatments in this regard. The aim of this study was to compare the clinical outcomes of these two surgeries for cubital tunnel syndrome. Methods In a retrospective study, we compared surgical outcomes (pain, sensation, motor recovery, atrophy, and total satisfaction) in 40 patients undergoing AIT and 43 undergoing AST of the ulnar nerve. Results The patients undergoing AIT showed a significant improvement in all the outcomes after the surgery (P = 0); however, those undergoing AST only experienced an improvement in pain and sensation after the surgery (P = 0). Comparing the two surgeries, we found that there was a high total satisfaction with AIT compared with AST (P = 0). When we independently compared each outcome in the two groups, we found that the muscle force recovery was significantly improved in the AIT group compared with the AST group (P = 0). Conclusions AIT is preferable to AST for the surgical treatment of cubital tunnel syndrome. In particular, AIT achieves a better motor recovery of the ulnar nerve compared with AST. PMID- 29022785 TI - The management of pretibial lacerations. AB - Introduction Pretibial lacerations are common injuries, often presenting in the elderly and infirm. Unclear management pathways often result in inappropriate care. We identify patient demographics, morbidity risk factors, injury severity and management options. Materials and methods This retrospective study involved analysing databases and hardcopy notes for patients admitted with pretibial lacerations to Addenbrooke's Hospital, January to December 2012. Microsoft Excel and Fishers exact test were used to analyse the data with a P-value of less than 0.05 representative of statistical significance. Information on patient demographics, site of lesion, preoperative symptoms, management, operative details and clinical outcomes were collected. Results A total of 36 patients were identified; the mean age was 79 years (+/- 16 years, 1 standard deviation) with a three to two female to male preponderance; 57% of injuries were caused by mechanical fall, 33% traumatic blunt impact and 7% road traffic accidents. American Society of Anesthesiologists physical status classification was 43% level III, 40% II, 9% I and 9% IV. Dunkin classification of severity was 33% grade III, 30% grade I, 24% grade IV and 12% grade II. Median inpatient duration was 11 days for surgically managed compared with 15 days for conservatively managed patients. Discussion Pretibial lacerations tend to affect the elderly. Management is compounded by polypharmacy and comorbidities. If inadequately managed, such injuries can adopt characteristics of chronic wounds, with lengthy inpatient stays. Surgical intervention may be appropriate where injuries are severe and the patient stable enough for theatre. Conclusions We believe that surgical management with autologous tissue repair, with minimal delay between presentation and theatre, is warranted for extensive injuries wherever possible, with conservative management used for predominantly less extensive pretibial lacerations. PMID- 29022786 TI - Necrotising fasciitis of the left leg caused by perforated caecal adenocarcinoma. AB - An 82-year-old man presented with abdominal pain and a painful and swollen left thigh. On examination there was oedema, tenderness and crepitus with skin discoloration of the left thigh. Computed tomography showed retroperitoneal perforation of the caecum and necrotising fasciitis of the left thigh. A right hemicolectomy and repeated fasciotomies of the left thigh with debridement of necrotic tissue were performed but the patient died of multi-organ failure. Histology showed a pT4aN2c caecal adenocarcinoma. This is a unique presentation of a retroperitoneal caecal perforation and acts as a reminder that unexplained severe fasciitis of the thigh may be caused by an intra-abdominal pathology. PMID- 29022787 TI - Does a missed obstetric anal sphincter injury at time of delivery affect short term functional outcome? AB - Introduction This study aimed to ascertain whether missed obstetric anal sphincter injury at delivery had worse functional and quality of life outcomes than primary repair immediately following delivery. Materials and methods Two to one propensity matching was undertaken of patients presenting to a tertiary pelvic floor unit with ultrasound evidence of missed obstetric anal sphincter injury within 24 months of delivery with patients who underwent primary repair at the time of delivery by parity, grade of injury and time to assessment. Outcomes compared included Birmingham Bowel, Bladder and Urinary Symptom Questionnaire (BBUSQ), Wexner Incontinence Score, Short Form-36, Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire and anorectal physiology results. Results Thirty-two missed anal sphincter injuries were matched two to one with sixty-two patients who underwent primary repair of an anal sphincter defect. Mean time to follow-up was 9.31 +/- 6.79 months. Patients with a missed anal sphincter injury had suffered more incontinence, as seen in higher the Birmingham Bowel, Bladder and Urinary Symptom Questionnaire (BBUSQ; 30.56% +/- 14.41% vs. 19.75% +/- 15.65%, P = 0.002) and Wexner scores (6.00 +/- 3.76 vs. 3.67 +/- 4.06, P = 0.009). They also had a worse BBUSQ urinary domain score (28.25% +/- 14.9% vs. 17.01 +/- 13.87%, P = 0.001) and worse physical functioning as measured by the Short Form-36 questionnaire (P = 0.045). There were no differences in other outcomes compared, including anorectal physiology and sexual function. Discussion In the short-term, patients with a missed obstetric anal sphincter injury had significantly worse faecal incontinence and urinary function scores, however quality of life and sexual function were largely comparable between groups. Conclusions Longer-term follow-up is needed to assess the effects of missed obstetric anal sphincter injury over time. PMID- 29022788 TI - Developing a simplified clinical prediction score for mortality in patients with cerebral gunshot wounds: The Maritzburg Score. AB - Introduction Cerebral gunshot wounds are highly lethal and literature on the clinical scores for mortality prediction is limited. Materials and methods A retrospective study was undertaken over a 5-year period at the Pietermaritzburg Metropolitan Trauma Service in South Africa. A simplified clinical prediction score was developed based on clinical and/or physiological variables readily available in the resuscitation room. Results A total of 102 patients were included; 92% (94/102) were male and the mean age was 29 years; 22% (22/102) died during the admission. The presence of visible brain matter (odds ratio 12.4, P = 0.003) and motor score less than 5 (odds ratio 89.6, P < 0.001) allows the prediction success of 92% (sensitivity 73% and specificity 98%). The area under the receiver operating characteristic curve was 94% (95% confidence interval 88 100%, P < 0.001). Conclusions The presence of visible brain matter, together with a motor score of less than 5, allows accurate identification of non survivors of cerebral gunshot wounds. Further study is required to validate this score. PMID- 29022789 TI - The impact of mechanism on the management and outcome of penetrating colonic trauma. AB - Introduction In light of continuing controversy surrounding the management of penetrating colonic injuries, we set out to compare the outcome of penetrating colonic trauma according to whether the mechanism of injury was a stab wound or a gunshot wound. Methods Our trauma registry was interrogated for the 5-year period from January 2012 to December 2016. All patients over the age of 18 years with penetrating trauma (stab or gunshot) and with intraoperatively proven colonic injury were reviewed. Details of the colonic and concurrent abdominal injuries were recorded, together with the operative management strategy. In-hospital morbidities were divided into colon-related and non-colon related morbidities. The length of hospital stay and mortality were recorded. Direct comparison was made between patients with stab wounds and gunshot wounds to the colon. Results During the 5-year study period, 257 patients sustained a colonic injury secondary to penetrating trauma; 95% (244/257) were male and the mean age was 30 years. A total of 113 (44%) sustained a gunshot wound and the remaining 56% (144/257) sustained a stab wound. Some 88% (226/257) of all patients sustained a single colonic injury, while 12% (31/257) sustained more than one colonic injury. A total of 294 colonic injuries were found at laparotomy. Multiple colonic injuries were less commonly encountered in stab wounds (6%, 9/144 vs. 19%, 22/113, P < 0.001). Primary repair was more commonly performed for stab wounds compared with gunshot wounds (118/144 vs. 59/113, P < 0.001). Patients with gunshot wounds were more likely to need admission to intensive care, more likely to experience anastomotic failure, and had higher mortality. Conclusions It would appear that colonic stab wounds and colonic gunshot wounds are different in terms of severity of the injury and in terms of outcome. While primary repair is almost always applicable to the management of colonic stab wounds, the same cannot be said for colonic gunshot wounds. The management of colonic gunshot wounds should be examined separately from that of stab wounds. PMID- 29022790 TI - Accelerated discharge within 72 hours of colorectal cancer resection using simple discharge criteria. AB - Introduction Short hospital stays and accelerated discharge within 72 hours following colorectal cancer resections have not been widely achieved. Series reporting on accelerated discharge involve heterogeneous patient populations and exclude important groups. Strict adherence to some discharge requirements may lead to delays in discharge. The aim of this study was to evaluate the safety and feasibility of accelerated discharge within 72 hours of all elective colorectal cancer resections using simple discharge criteria. Methods Elective colorectal cancer resections performed between August 2009 and December 2015 by a single surgeon were reviewed. Perioperative care was based on an enhanced recovery programme. A set of simplified discharge criteria were used. Outcomes including postoperative complications, readmissions and reoperations were compared between patients discharged within 72 hours and those with a longer postoperative stay. Results Overall, 256 colorectal cancer resections (90% laparoscopic) were performed. The mean patient age was 70.8 years. The median length of stay was 3 days. Fifty-eight per cent of all patients and sixty-three per cent of patients undergoing laparoscopic surgery were discharged within 72 hours. Accelerated discharge was not associated with adverse outcomes compared with delayed discharge. Patients discharged within 72 hours had significantly fewer postoperative complications, readmissions and reoperations. Open surgery and stoma formation were associated with discharge after 72 hours but not age, co morbidities, neoadjuvant chemoradiation or surgical procedure. Conclusions Accelerated discharge within 72 hours of elective colorectal resection for cancer is safely achievable for the majority of patients without compromising short-term outcomes. PMID- 29022791 TI - X-Bolt unforeseen placement complication: case report. AB - With the introduction of the World Hip Trauma Evaluation Four clinical trial, fixation of pertrochanteric neck of femur fractures is becoming a hot topic. In this trial, the novel X-Bolt expanding bolt implant is being compared with the current gold standard of a sliding hip screw. We present a previously undescribed complication when inserting the bolt into the femoral head, where the expandable wings penetrate the femoral neck due to misplacement of the bone crusher or the X Bolt prosthesis. This unforeseen complication required the introduction of several additional corrective intraoperative steps. PMID- 29022792 TI - A case of massive porocarcinoma. AB - A 53-year-old Cambodian woman presented with nodular masses on the right arm suggestive of a sarcoma-type malignancy. The masses were excised and identified as multiple benign eccrine poromas. The patient re-presented after two years with large relapsed tumours and axillary lymph node involvement. A forequarter amputation was undertaken. Histology confirmed the diagnosis of a porocarcinoma, which was likely to be due to malignant transformation of the original poromas. The size and multiplicity of the tumours represents a highly unusual presentation of these rare eccrine neoplasms. PMID- 29022793 TI - Intralesional excision with topical intralesional cryotherapy improves the treatment of keloid scarring in a paediatric patient. AB - Recurrent keloid scarring has a significant impact on quality of life. Management is complex, particularly for scars resistant to conventional treatments and in paediatric cases where radiotherapy is not a suitable adjunct to surgical excision. We present the case of a nine-year-old African Caribbean girl with multiple large and recurrent keloid scars on both ears and bilateral sensorineural deafness. Following repeated intralesional excisions, corticosteroid and botulinum toxin injections, she continued to experience rapid recurrence of her keloids, worsening pain and pruritus. She was no longer able to wear her hearing aids because of the large size of the keloids. We employed a novel technique using topical intralesional cryotherapy, applying liquid nitrogen intraoperatively to the inside of the skin flaps immediately post-intralesional keloid excision and before wound closure. At 26-month follow-up a good aesthetic and symptomatic result was achieved, with minimal hypopigmentation, significantly reduced scar volume and significantly slowed recurrence. We discuss this case and review the current literature on the use of topical intralesional cryotherapy for keloid scarring. PMID- 29022794 TI - An assessment of pelvic binder placement at a UK major trauma centre. AB - Introduction Pelvic binders are used to reduce the haemorrhage associated with pelvic ring injuries. Application at the level of the greater trochanters is required. We assessed the frequency of their use in patients with pelvic ring injuries and their positioning in patients presenting to a single major trauma centre. Methods A retrospective review of our trauma database was performed to randomly select 1000 patients for study from April 2012 to December 2016. Patients with a pelvic binder or a pelvic ring injury defined by the Young and Burgess classification were included. Computed tomography was used to identify and measure pelvic binder placement. Results 140 patients were identified: 110/140 had a binder placed. Of the total, 54 (49.1%) patients had satisfactory placement and 56 (50.9%) had unsatisfactory placement; 30/67 (44.8%) patients with a pelvic ring injury had no binder applied, of whom 6 (20%) had an unstable injury; 9/67 patients died. Discussion This is the first study assessing pelvic binder placement in patients at a UK major trauma centre. Unsatisfactory positioning of the pelvic binder is a common problem and it was not used in a large proportion of patients with pelvic ring injuries. This demonstrates that there is a need for continuing education for teams dealing with major trauma. PMID- 29022795 TI - Local recurrence after 'standard' abdominoperineal resection: do we really need ELAPE? AB - Introduction Low rectal cancers requiring abdominoperineal resection tend to have a worse prognosis than higher tumours, which may be treated by anterior resection. One of the reasons for this may be inadequate local surgery, in particular the narrow waist of the resection specimen of a standard abdominoperineal resection may be associated with a high positive circumferential resection margin. The extralevator abdominoperineal excision (ELAPE) aims to improve the R0 resection rate but carries significant morbidity. We examined our own results of standard abdominoperineal resection to assess the need for a change of policy. Methods We operformed a retrospective analysis of consecutive standard abdominoperineal resections for rectal cancer in a single centre from June 2002 to December 2011. Results A total of 102 patients underwent standard abdominoperineal resection with curative intent; 19 had no preoperative treatment, 42 had short course radiotherapy, 9 had long course radiotherapy and 32 had neoadjuvant chemotherapy followed by long course chemoradiotherapy. In 17/102(16.6%), there was a positive circumferential resection margin. Over a median follow up of 32 months, 20 patients developed recurrence of any type. Local recurrence occurred in five patients (two of which also had distant recurrence), of whom two had a positive circumferential resection margin (P = 0.10). Actuarial two-year local only recurrence was 3.4% and any recurrence was 17.7%. Overall five-year cancer specific survival was 77%. Conclusions In this series we found low rates of local recurrence after standard abdominoperineal resection even with a circumferential margin rate positivity of 16.6%.Performing an ELAPE in selected cases may improve these results further but is not necessarily required for all patients. PMID- 29022796 TI - Aural exostoses (surfer's ear) provide vital fossil evidence of an aquatic phase in Man's early evolution. AB - For over a century, otolaryngologists have recognised the condition of aural exostoses, but their significance and aetiology remains obscure, although they tend to be associated with frequent swimming and cold water immersion of the auditory canal. The fact that this condition is usually bilateral is predictable since both ears are immersed in water. However, why do exostoses only grow in swimmers and why do they grow in the deep bony meatus at two or three constant sites? Furthermore, from an evolutionary point of view, what is or was the purpose and function of these rather incongruous protrusions? In recent decades, paleoanthropological evidence has challenged ideas about early hominid evolution. In 1992 the senior author suggested that aural exostoses were evolved in early hominid Man for protection of the delicate tympanic membrane during swimming and diving by narrowing the ear canal in a similar fashion to other semiaquatic species. We now provide evidence for this theory and propose an aetiological explanation for the formation of exostoses. PMID- 29022797 TI - Surgery performed by supervised registrars does not adversely affect medium-term functional outcomes after total knee replacement. AB - Introduction Although total knee arthroplasty (TKA) is an index procedure for orthopaedic registrars, there is a lack of published research as to the effects of surgery when performed by supervised trainees. The aim of this study was to compare functional outcomes up to five years after primary TKA performed by consultants and trainee surgeons. Methods A retrospective analysis was conducted of prospectively collected data for 609 consecutive patients (339 female, 270 male) undergoing TKA. Patients were assessed preoperatively as well as at 18 months, three years and five years postoperatively, and American Knee Society objective knee and functional scores (AKSK and AKSF) were recorded. Results Surgery was performed by a consultant in 465 cases and a supervised trainee in 144 cases. There were no significant differences between the two groups in preoperative patient characteristics, operative time (p=0.15), transfusion rates (p=0.84), length of stay (p=0.98), manipulation under anaesthesia (p=0.69), or mortality rates at one year (p=0.73) or five years (p=0.81). Postoperatively, the median magnitude of improvement in AKSK (48 points for consultant group vs 45 points for trainee group, p=0.74) and in AKSF (both groups 15, p=0.995) was similar between the groups. AKSK and AKSF scores were similar at all timepoints up to five years following surgery, and there was no difference in the median range of motion (both groups 100 degrees , IQR: 18 degrees ) at five years (p=0.43). Conclusions TKA performed by supervised registrars gives functional outcomes that are equivalent to consultant performed TKA, without affecting postoperative range of movement, or increasing operative time, length of stay or transfusion rates. Rates of postoperative MUA and mortality are also comparable. PMID- 29022798 TI - A rare case of simultaneous pneumoperitoneum and pneumomediastinum with a review of the literature. AB - Simultaneous pneumoperitoneum and pneumomediastinum is a rare clinical occurrence. It has been reported in the literature as a complication of various medical and dental procedures. To our knowledge, we present the first case of a non-iatrogenic and traumatic simultaneous pneumoperitoneum and pneumomediastinum in a previously independent 91-year-old man who presented to hospital with back and chest wall pain following mechanical fall from standing. A new radiological diagnosis of diverticular disease with possible perforation was made following admission. Despite appropriate management and supportive measures, the patient died 12 days after admission from a kidney injury. PMID- 29022799 TI - Perineal Richter's herniation following proctectomy. AB - In a Richter's hernia, only part of the anti-mesenteric border of the bowel is incarcerated within the underlying defect. We report three cases presenting between 18 days and 11 years following proctectomy. As all patients had functioning stomas a high index of suspicion is necessary to avoid a delay in diagnosis. PMID- 29022800 TI - Staple line integrity test in sleeve gastrectomy. PMID- 29022801 TI - Reduced port number in laparoscopic cholecystectomy for acute cholecystitis following percutaneous transhepatic gallbladder drainage. PMID- 29022803 TI - Assessing the amount of distraction needed for expandable anterior column cages in the cervical spine. PMID- 29022802 TI - Endoscopic-assisted local intralesional curettage and excision of intraosseous lesions in the talus. PMID- 29022804 TI - Air as contrast media for hip arthrogram. PMID- 29022805 TI - How to remove a ring using an oxygen mask. PMID- 29022806 TI - Single-incision distal biceps tendon repair using spinal retractors to achieve optimum exposure. PMID- 29022807 TI - Surgery for popliteal artery entrapment syndrome: use of an intraoperative tibial nerve stimulator and duplex ultrasound. PMID- 29022808 TI - A simple endoscopic method for removal of a knotted urethral catheter. PMID- 29022809 TI - Use of sponge heel boots as a temporary splint for paediatric elbow supracondylar fractures. PMID- 29022810 TI - The 'egg topping' technique for bone graft harvesting in hip arthroplasty. PMID- 29022811 TI - The inferior dermal flap technique for trans male chest contouring. PMID- 29022812 TI - The 'hand of rock' to assess upper limb peripheral neurological status in children. PMID- 29022813 TI - Real time ultrasound guided insertion of Veress needle in obese patients. PMID- 29022814 TI - A porcine model for teaching laparoscopic appendicectomy. PMID- 29022815 TI - Reinforcement of sutures to close surgical incisions in frail skin. PMID- 29022816 TI - Increased safety of surgical glove application: the under/over method. PMID- 29022818 TI - A cheap, simple and sterile surgical bolster. PMID- 29022817 TI - Endourological management of misplaced urethral catheter after radical prostatectomy. PMID- 29022819 TI - Two uses of the Smillie knife in foot and ankle surgery. PMID- 29022820 TI - A simple method to find the proximal stump of the cut flexor pollicis longus tendon in the thenar zone. PMID- 29022821 TI - Using nylon tape to aid the formation of loop stomas. PMID- 29022822 TI - A late presentation of Loeys-Dietz syndrome associated with an aortic root aneurysm. AB - Loeys-Dietz syndrome (LDS) is characterised by a mutation in the transforming growth factor beta receptor, and is strongly associated with aortic aneurysms and rupture. Most cases of LDS present in the second decade of life, with the average life expectancy being 37 years. We report a case of suspected LDS (owing to significant family history of the disorder) that presented in the seventh decade of life. Our patient had aortic root dilation and was initially believed to have Marfan syndrome. However, subsequent tests were negative. On further investigation of her family history, it was revealed that she had a strong positive family history of aortic rupture and aneurysms associated with genetically confirmed atypical LDS. By reporting this case, we aim to highlight the importance of considering inherited connective tissue disorders when a patient presents with aortic aneurysms or dissections associated with a strong family history of aortic pathology. PMID- 29022823 TI - Impact of a medication reconciliation program on cardiac surgery patients. AB - Background Cardiac surgery patients are at high risk of medication errors. Resumption of home medications reduces the significance and number of medication errors. This could be achieved by implementing a medication reconciliation program. Patients and Methods Patients were eligible for inclusion in this prospective study if they were admitted, transferred, and/or discharged under cardiac surgery team care from September 2015 to March 2016. The primary outcome was the number and proportion of unintentional medication discrepancies. Secondary outcomes included the number of interventions to resolve discrepancies and their clinical significance, and the medication regimen complexity index and its correlation with discrepancies. Results There were 374 patients included and 1000 encounters tracked. Four-hundred and seventy (47%) of the included encounters were for adult patients. Of the 260 medication discrepancies detected, 181 (69.61%) were detected during admission. Discrepancies among adults were 0.913, 0.307, and 0.176 on admission, transfer, and discharge, respectively. Two hundred (76.92%) of the interventions recommended by the pharmacy residents were accepted by the medical team, and the remaining were accepted with modifications, with no rejections. One-hundred and sixty-six (83%) of the accepted interventions were of high clinical significance. There was a significant correlation between the number of medication discrepancies and medication regimen complexity index on admission ( p < 0.0001, r = 0.34), transfer, and discharge. Conclusion Implementation of a medication reconciliation program in cardiac surgery units and its step-down units can be a powerful mean of identifying medication errors in post-cardiac surgery patients at admission and throughout the transition of care. PMID- 29022824 TI - Aortico-left ventricular tunnel: a rare congenital abnormality. PMID- 29022825 TI - MitraClip and mitral annuloplasty device as a bridge to transplantation. AB - A 42-year-old man with dilated cardiomyopathy and endstage heart failure was evaluated for heart transplantation. He received a MitraClip and Carillon annuloplasty device for functional mitral regurgitation as palliation for his heart failure. Subsequently, he underwent successful heart transplantation. PMID- 29022826 TI - Inflammatory myofibroblastic lung tumor with dysphagia in a 4-year-old child. AB - Inflammatory myofibroblastic tumors of the lung are rare in adults but common among pediatric lung tumors. A 4-year-old girl was evaluated for respiratory symptoms, dysphagia, and weight loss. Radiology revealed a right hilar mass that persisted despite antibiotic treatment. On exploration, a hilar mass involving the pulmonary vasculature, diaphragm and gastroesophageal junction was found. Aggressive surgical excision including a right pneumonectomy was performed. Histopathology confirmed an inflammatory myofibroblastic tumor with no features of malignancy. At the 2-year follow-up, the child was clinically stable with no recurrence. Dysphagia is a very rare presentation of such tumors. PMID- 29022828 TI - The Book Corner. PMID- 29022827 TI - Descending aortic aneurysm in Wiskott-Aldrich syndrome: options for repair. AB - We report open surgical repair of a previously stented descending thoracic aneurysm in a patient with Wiskott-Aldrich syndrome and a platelet count <10 * 109.L-1. The same patient was described previously in a report of the first endovascular stent in this form of vasculitis. We describe the pre- and intraoperative management, and suggest a change in strategy in this setting. PMID- 29022829 TI - Migratory White Stork (Ciconia ciconia): A Potential Vector of the OXA-48 Producing Escherichia coli ST38 Clone in Algeria. AB - The emergence of carbapenemase-producing Enterobacteriaceae is of great concern to public health worldwide. The aim of this study was to screen for the presence of carbapenemase-producing Enterobacteriaceae in white stork (Ciconia ciconia) migratory bird stools, and to investigate their molecular support on beta lactamase production. In March 2015, 32 fecal samples of white stork were collected in the Commune of El Madher Wilaya de Batna, in eastern Algeria. Samples were subjected to selective isolation of carbapenem-resistant Enterobacteriaceae. Representative colonies were screened phenotypically for carbapenemase production. Carbapenemase-producing isolates were subjected to antibiotic susceptibility testing and extended-spectrum beta-lactamase (ESBL) coproduction. beta-Lactamase determinants were searched for by PCR and sequencing. Three carbapenemase-producing Escherichia coli were obtained. Only one strain was positive for ESBL production. The OXA-48-type carbapenemase encoding gene was detected in all isolates. Screening for other beta-lactamase encoding genes showed that all isolates coexpress the blaTEM gene, whereas one of them additionally harbored the blaCTX-M-15 ESBL gene. Multilocus sequence typing results showed that two strains belonged to the sequence type 38. This work demonstrated for the first time that the migratory white stork can play an important role in the dissemination of OXA-48-producing E. coli as a potential reservoir and vector. PMID- 29022830 TI - Direct costs for nonsurgical management of Chronic Pancreatitis in a tertiary care teaching hospital. AB - BACKGROUND: Chronic pancreatitis (CP) is a leading cause of hospitalization among gastrointestinal diseases resulting in considerable financial burden to patients. However the direct costs for nonsurgical management in CP remains unexplored. METHODS: A cross sectional study was carried out (2011-14) in the Department of Gastroenterology, Kasturba Hospital, Manipal, India. Demographic and clinical data on laboratory investigations, interventions and follow up were obtained from the medical records department. Item costs were derived from the hospital electronic billing section. Cost was expressed as median annual cost per patient. RESULTS: 65 (male 48; 73.8%) patients were included. Their median age was 31 (range 12-68) years. The annual median (IQR) total cost per patient was INR 88,892 (70,550.5-116,004); [USD 1410(1119-1841); ? 1155(916-1507)], comprising of INR 61,089 (39,102.5-90,360.5) [USD 970 (621-1434); ? 793(508-1174)] for outpatient management and INR 32,450 (11,016-46,958) [USD 515 (175-745); ?421(143 610)] for hospitalization. 69.5% of the treatment cost was attributed to outpatient treatment. Drugs contributed to 54%, hospitalization incurred 30.5%, investigations 12% and professional fees (3.5%) of the total cost. Pancreatic enzyme replacement therapy (PERT) cost contributed to three-quarters of drug therapy. Use of rabeprazole as against pantoprazole reduced the overall annual cost of therapy by 4%. CONCLUSIONS: This study depicts the first nonsurgical management of accrued direct costs associated with CP due to expensive medications. Due to the high cost for PERT, its usefulness needs proper validation by cost benefit analysis. PMID- 29022831 TI - Nuclear Magnetic Resonance-Assisted Metabolic Analysis of Plasma for Mild Gestational Diabetes Mellitus Patients. AB - AIMS: This study aimed at detecting the difference of metabolic profile in mild gestational diabetes mellitus (GDM) patients, and at identifying the correlation between the disturbed metabolites and insulin resistance pathway induced by the inflammation factors secreted by the placenta and adipocytes. MATERIALS AND METHODS: Blood samples were collected from 36 pregnant women diagnosed with mild GDM and 36 normal glucose-tolerant (NGT) pregnant women. Metabolic profiles were acquired by using proton nuclear magnetic resonance (1H-NMR) spectroscopy, and the data were analyzed by multivariate statistical data analysis. The messenger RNA (mRNA) expression of CX3CL1, CD14, and CD86 in placenta and omental adipose tissues was detected by quantitative real-time polymerase chain reaction. RESULTS: (1) Weight and body mass index in GDM group were remarkably higher at both pre-pregnancy and delivery than those in the NGT group. The levels of fasting blood glucose, insulin, and homeostasis model assessment-2 for insulin resistance in GDM group were also significantly higher than those in the NGT group. (2) The expression of mRNA of CD86 was significantly higher in placenta of GDM patients. However, the gene expression of CX3CL1 and CD86 in omental adipose tissues of GDM was markedly lower as compared with the control group. (3) The GDM group exhibited severely perturbed glucose metabolism, fatty acid metabolism, amino acid metabolism, and activated inflammatory response. CONCLUSIONS: The 1H NMR-based metabonomics approach together with biochemical assay and the mRNA expression analysis provided metabolic information about mild GDM, which indicated disturbed glucose metabolism, fatty acid metabolism, amino acid metabolism, and activated inflammatory response in mild GDM patients. This integrated study provides a new idea and methods to understand underlying mechanisms of mild GDM in clinics. PMID- 29022832 TI - Voltammetric detection of trifluralin in tap water, fruit juice, and vegetable extracts in the presence of surfactants. AB - This study describes a novel electrochemical method to determine the herbicide trifluralin in samples of water, fruit juice, and vegetable extracts in the presence of surfactants, using a glassy carbon electrode (GCE). In acidic media, trifluralin was irreversible on the glassy carbon electrode surface at -0.5 V vs. Ag/AgCl. Surfactant presence on the electrode-solution interface modified current intensities and shifted the reduction peak potential of trifluralin. Different types of surfactant and their concentrations were investigated. The anionic surfactant significantly enhanced the peak current intensity of trifluralin. Under optimal analytical conditions, an analytical curve was obtained in the concentration range of 0.48-32.20 uM. The limits of detection and quantification were estimated at 0.031 and 0.104 uM, respectively. The method was successfully applied to quantify trifluralin in samples of water, orange and tomato juice, and green pepper, carrot, and onion extracts, with recovery rates of 97.9-102.1%. The results were in good agreement with those obtained using high-performance liquid chromatography, indicating that the proposed electrochemical method can be employed to quantify trifluralin in various types foods, with sensitivity, specificity, selectivity and reproducibility. PMID- 29022833 TI - How to Initiate Dementia Care Networks? Processes, Barriers, and Facilitators During the Development Process of a Practice-Oriented Website Toolkit Out of Research Results. AB - BACKGROUND: Despite its high relevance, scientific evidence often fails to be disseminated into practice. Information websites can be a successful information dissemination tool, but very little is known about the processes involved in the interdisciplinary development of such websites. This article aims to demonstrate the processes, barriers, and facilitators during the development and publication of a practice-friendly information website grounded in scientifically based research findings about dementia care networks obtained by the DemNet-D study. METHOD: The qualitative data of this article are based on a work progress protocol and a recorded interview with the project's science journalist. The interview was transcribed, analyzed, and coded based on structured content analysis. Quantitative data were extracted to display the website usage rate. RESULTS: The results indicate that interdisciplinary teamwork is an essential factor for successful website development. Furthermore, the use of a formalized model can help to organize the development structure. To transform scientific content, a specialized expert in the field is needed. Continuous evaluations and marketing strategies are vital for the success of a website. The final website had a high access rate 1 month after launch. CONCLUSION: Crucial processes, barriers, and facilitators during the development of a practice-related information website about dementia care networks are presented and discussed. These findings can help people who aim to disseminate research findings to other practitioner-associated priority groups as well as public health-related groups. PMID- 29022834 TI - Phenolic-Protein Interactions: Effects on Food Properties and Health Benefits. AB - Phenolic-protein interactions (PPI), which naturally occur in most food systems, are being intentionally designed to enhance functional performance of phenolic compounds (PC). PPI have been primarily associated with changes related to sensorial, nutritional, and nutraceutical features of foods. Furthermore, these interactions affect properties such as astringency, protein digestibility, absorption, and bioavailability of antioxidants. Therefore, new product development should pay attention to these interactions and not only on the concentration of PC. PPI protect PC from degradation due to enzymatic attack or pH changes in the lumen of the intestinal tract. Due to PPI, PC are delivered to the colon where they are metabolized by the microbiota and generate an antioxidant environment. Interactions with proteins also may enhance the antiproliferative activity of PC in some specific tumor cell lines. In this review, the effects of PPI that affect both food properties and health benefits are discussed. PMID- 29022836 TI - 'Real-world' Australian experience of pomalidomide for relapsed and refractory myeloma. PMID- 29022837 TI - Critical Parameters for Particle-Based Pulmonary Delivery of Chemotherapeutics. AB - Targeted delivery of chemotherapeutics through the respiratory system is a potential approach to improve drug accumulation in the lung tumor, while decreasing their negative side effects. However, elimination by the pulmonary clearance mechanisms, including the mucociliary transport system, and ingestion by the alveolar macrophages, rapid absorption into the blood, enzymatic degradation, and low control over the deposition rate and location remain the main complications for achieving an effective pulmonary drug delivery. Therefore, particle-based delivery systems have emerged to minimize pulmonary clearance mechanisms, enhance drug therapeutic efficacy, and control the release behavior. A successful implementation of a particle-based delivery system requires understanding the influential parameters in terms of drug carrier, inhalation technology, and health status of the patient's respiratory system. This review aims at investigating the parameters that significantly drive the clinical outcomes of various particle-based pulmonary delivery systems. This should aid clinicians in appropriate selection of a delivery system according to their clinical setting. It will also guide researchers in addressing the remaining challenges that need to be overcome to enhance the efficiency of current pulmonary delivery systems for aerosols. PMID- 29022835 TI - Time for Multiple Extraction Methods in Proteomics? A Comparison of Three Protein Extraction Methods in the Eustigmatophyte Alga Microchloropsis gaditana CCMP526. AB - Proteomics is a crucial postgenomic biotechnology for functional and systems scale analyses in cell and integrative biology, not to mention clinical and precision medicine research. However, a fundamental requirement for an accurate examination of the protein complement of cells is an efficient method for extracting the proteins. This study reports on the evaluation of three protein extraction methods: trichloroacetic acid (TCA)-acetone, phenol, and TRIzol, in the eustigmatophyte alga Microchloropsis gaditana CCMP526 for proteomic analysis. M. gaditana is a potential candidate for algal-based biofuels. This industrially important strain is also rich in dietary oil and pigments and is used as feed in the aquaculture industry. Liquid chromatography-tandem mass spectrometry (LC MS/MS)-based proteomic analysis was performed for proteins obtained using the three extraction methods and their effects were examined by the abundance ratio. Protein yield was higher using the TCA-acetone and phenol methods than with the TRIzol method. The TCA method was superior than other methods examined here in terms of protein coverage and abundance. Subcellular localization of the identified proteins revealed no significant difference among the extraction methods. Importantly, each method revealed a unique set of proteins. To the best of our knowledge, this is the first report on evaluation of protein extraction methods for the proteomic analysis of M. gaditana CCMP526. These observations underscore the importance of using multiple protein extraction methods for comprehensive proteome coverage, as the field of proteomics edges toward diverse applications in biofuels, aquaculture industry, marine biology, and agriculture. PMID- 29022838 TI - Pharmacogenomics of triazole antifungal agents: implications for safety, tolerability and efficacy. AB - INTRODUCTION: Triazole antifungal agents are prescribed to treat invasive fungal infections in neutropenic and non-neutropenic patients. These antifungal agents are substrates and inhibitors of cytochrome P450 (CYP). Genetic polymorphisms in CYP2C9, CYP2C19 and CYP3A5 can lead to large population-specific variations in drug efficacy and safety, optimal dosing, or contribute to drug interactions associated with this class. Areas covered: This manuscript reviews the pharmacogenomics (i.e. the influence of genetics on drug disposition) of triazole antifungal agents related to their CYP-mediated metabolism and summarizes their implications on triazole efficacy, safety, and tolerability. A search of English language original research, and scholarly reviews describing the pharmacogenomics of triazole antifungal agents and their impact on drug efficacy, safety, and tolerability published from 1980 to present was undertaken using PubMed. Expert opinion: Currently studies demonstrating the pharmacogenomic influences on itraconazole, posaconazole and isavuconazole are minimal and limited to their inhibitory effects on CYP3A4 in expressors of CYP3A5 variants. Conversely, there are significant pharmacogenomic considerations for voriconazole because it interacts with several polymorphic CYPs, most notably CYP2C19. Pharmacogenomics of CYP2C9 do not appear to effect fluconazole safety and efficacy. However, genetic polymorphisms may influence its drug interactions but this needs further study. PMID- 29022839 TI - The Audacity of Engagement: Hearing Directly from Young Adults with Cancer on Their Attitudes and Perceptions of Cancer Survivorship and Cancer Survivorship Research. AB - BACKGROUND: Young adult (YA) cancer survivors have been historically under represented in cancer survivorship research, which has contributed to more disparate health outcomes compared with young and older cancer survivors. Using qualitative methods, this study explored YAs' perceptions of cancer survivorship and identified YA-specific barriers and preferences for participation in cancer survivorship research. METHODS: Individual interviews and focus groups were conducted with YA cancer survivors (N = 19) attending a patient-focused oncology conference. Grounded theory methodology guided analyses by using an inductive data-driven approach to thematic content analysis. RESULTS: Participants averaged 33 years old (standard deviation [SD] = 5.5), were 10 years postdiagnosis (SD = 2.3), and were primarily female (79%). Key cancer survivorship topics included adjusting to a "new normal," staying connected with cancer peers, and dealing with post-treatment medical care. Perceptions of YA survivorship research were mixed. YAs appreciated and were optimistic about the potential for benefit from research. Specific barriers for participation included perceptions of research being inaccessible, overwhelming, and frustrating; participation as inconvenient and burdensome; and researchers being viewed with skepticism and mistrust. They recommended: (1) making age-appropriate, patient-focused changes (e.g., language and design of study materials); (2) increasing participants' control, flexibility, and convenience of procedures; and (3) creating a back-and-forth dialogue between YAs and researchers. CONCLUSION: We assessed YA survivors' perceptions of YA cancer survivorship and research. Communication strategies are needed to address negative perceptions and perceived barriers to research participation. This includes tailoring of dissemination efforts and developmentally targeted implementation of YA priorities into the research process. Age-specific, patient-focused research practices may foster trust within the YA cancer survivor community and improve research participation. PMID- 29022840 TI - Irritable temperament and lifetime psychotic symptoms as predictors of anxiety symptoms in bipolar disorder. AB - PURPOSE: Affective temperaments, hopelessness, alexithymia, and anxiety/agitation symptoms may play a significant role in the psychopathological characteristics of bipolar disorder (BD). Here, we aimed to investigate the eventual association between the mentioned explanatory variables and anxiety/agitation symptoms in BD. MATERIALS AND METHODS: We recruited at the Section of Psychiatry, Department of Neuroscience, University of Genoa (Italy), 92 BD inpatients having a mean age of 52 (+/-13.8) years. Participants were assessed using specific psychometric instruments. Anxiety/agitation symptoms have been evaluated using the 11-item of the Beck Depression Inventory II (BDI-II). RESULTS: Overall, 53.8% of participants presented with anxiety/agitation symptoms and 46.2% without. The two groups significantly differed about socio-economic status, lifetime psychotic symptoms, and residual depressive symptoms between episodes. Anxiety/agitation symptoms significantly correlated with irritable affective temperament (r = 0.407; p = .01), hopelessness (r = 0.541; p <= .001), difficulty identifying feelings (r = 0.440; p <= .001), difficulty describing feelings (r = 0.437; p <= .001), and externally oriented-thinking (r = 0.393; p <= .001). After multivariate analyses, irritable affective temperament (OR = 2.457, p <= .01) and less lifetime psychotic symptoms (OR = 0.007, p <= .05) remained the only significant variables associated with anxiety/agitation symptoms. CONCLUSIONS: The generalization of the main findings is limited by the small sample size and cross-sectional study design. Nevertheless, our results suggest that the careful assessment of affective temperaments and psychotic symptoms may help to early identify BD patients suffering from anxiety/agitation symptoms and may allow to perform targeted interventions in the clinical practice. PMID- 29022841 TI - Designing cellulosic and nanocellulosic sensors for interface with a protease sequestrant wound-dressing prototype: Implications of material selection for dressing and protease sensor design. AB - Interfacing nanocellulosic-based biosensors with chronic wound dressings for protease point of care diagnostics combines functional material properties of high specific surface area, appropriate surface charge, and hydrophilicity with biocompatibility to the wound environment. Combining a protease sensor with a dressing is consistent with the concept of an intelligent dressing, which has been a goal of wound-dressing design for more than a quarter century. We present here biosensors with a nanocellulosic transducer surface (nanocrystals, nanocellulose composites, and nanocellulosic aerogels) immobilized with a fluorescent elastase tripeptide or tetrapeptide biomolecule, which has selectivity and affinity for human neutrophil elastase present in chronic wound fluid. The specific surface area of the materials correlates with a greater loading of the elastase peptide substrate. Nitrogen adsorption and mercury intrusion studies revealed gas permeable systems with different porosities (28 98%) and pore sizes (2-50 nm, 210 um) respectively, which influence water vapor transmission rates. A correlation between zeta potential values and the degree of protease sequestration imply that the greater the negative surface charge of the nanomaterials, the greater the sequestration of positively charged neutrophil proteases. The biosensors gave detection sensitivities of 0.015-0.13 units/ml, which are at detectable human neutrophil elastase levels present in chronic wound fluid. Thus, the physical and interactive biochemical properties of the nano based biosensors are suitable for interfacing with protease sequestrant prototype wound dressings. A discussion of the relevance of protease sensors and cellulose nanomaterials to current chronic wound dressing design and technology is included. PMID- 29022842 TI - The effect of strontium-loaded rough titanium surface on early osseointegration. AB - It is not clear whether surface bioactive chemistry plays an important role in the early osseointegration of micro-structured titanium implants that have the same surface topography at the micrometer and submicrometer scales. In this study, magnetron sputtering methodology was employed for the preparation of Sr coating on sandblasted and acid-etched (SLA) titanium implant without changing the surface characteristics. The study of the surface morphology of the coating was carried out with the use of scanning electron microscopy, and the chemical composition of the surface was examined by X-ray energy-dispersive spectrometry. Twenty SLA implants together with 20 Sr-SLA implants were randomly inserted into the proximal tibia of 20 rats. The early osseointegration of the Sr-SLA implant was compared with SLA implant by removal torque test and histological analysis following two and eight weeks of implantation, correspondingly. As revealed by the surface characteristics, both Sr-SLA and SLA surfaces exhibited similar typical isotropic irregular indentations. The strontium ions were effectively incorporated into the SLA surface (the atomic ratio is 2%). Following two and eight weeks of healing, significant increases in removal torque values ( p < 0.05) were taken into observation in respect of Sr-SLA implant. Histologically, the Sr-SLA implants displayed significantly higher bone-to-implant contact percentages and bone area ratio in comparison with the SLA implant at eight weeks ( p < 0.05). At two weeks, the bone-implant contact percentages, together with bone area ratio of Sr-SLA surface appeared to be a little bit slightly greater than that of SLA surface. But the statistical difference was not significant. These results indicated that the chemical modification with Sr incorporated by magnetron sputtering treatment in moderately rough surfaced implants remarkably increases early bone apposition. PMID- 29022843 TI - Should we treat aneurysms in perforator arteries from the basilar trunk? Review of 49 cases published in the literature and presentation of three personal cases. AB - Basilar trunk perforator artery aneurysms are rare. Their diagnosis and treatment are difficult, controversial, and challenging. Analysis of 52 cases (49 documented in the literature and three personal cases) clearly shows a re bleeding rate of 15% in patients whose aneurysm has not been occluded and 0% in treated patients ( p < 0.05). The most effective treatment, and the one that presents the least complication, is double-stenting across the basilar trunk. PMID- 29022844 TI - Laser Biophotomodulation in Patients with Neurosensory Disturbance of the Inferior Alveolar Nerve After Sagittal Split Ramus Osteotomy: A 2-Year Follow-Up Study. AB - OBJECTIVE: To evaluate the effect of the application of photobiomodulation in a 2 year follow-up period in patients who have been intervened with a sagittal ramus split osteotomy and present neurosensory disturbance of the inferior alveolar nerve. BACKGROUND: Photobiomodulation is a common clinical tool in dentistry, for its beneficial effects have been shown in surgical and periodontal wound healing, reducing of swelling and pain, neurosensory recovery, and treatment of temporomandibular joint disorders. METHODS: This is a 2-year follow-up study with an experimental (Laser) group (n = 33) that received photobiomodulation, and a control (Sham) group (n = 9), placebo. All patients from the Laser group received laser applications (continuous wave of 0.353 W/cm2, 27 J in 270 sec per session) on days 1, 2, 3, 5, 10, 14, 21, and 28 after surgery. Neurosensory disturbance was evaluated with five tests: Visual Analog Scale (VAS) for pain and sensitivity, sensitivity threshold test, two-point discrimination, and thermal discrimination. All tests were performed before (24 h before surgery) and after surgery (24 h, 28 days, 60 days, 6 months, 1 year, 2 years, more than 2 years). Participants and evaluator were blinded to intervention. Variables were described with absolute frequencies, percentages, and medians. Ordinal and dichotomous variables were compared with Mann-Whitney's and Fisher's tests, respectively. RESULTS: Clinical improvement was observed during the follow-up period for the Laser group; general VAS for sensitivity was normal in 11 participants from the Laser group at 2 years postsurgery (40.74%), while no participants from the Sham group achieved this (p = 0.0341). Twenty-three participants recovered initial values for two-point discrimination (69.7%) after 2 years of follow-up (p = 0.0025) as well as sensitivity threshold test. General VAS for pain was normal in 31 patients from the Laser group after 2 years of follow-up (93.94%, p = 0.0254). CONCLUSIONS: Photobiomodulation was effective for neurosensory recovery on sample studied. PMID- 29022845 TI - The Unified Patent Court: where are we and what should you be doing? AB - The road to the Unified Patent Court, which will allow industry to enforce its patents in Europe in a single set of proceedings rather than in numerous national courts, is becoming increasingly rocky as the project approaches its goal. This article reviews the rocks encountered in the past year and looks forward to what industry now needs to be addressing as the summit approaches. PMID- 29022847 TI - The Prison of Shame: Finding a Passage Through Dreams. AB - In New York City, a man and his therapist talk about shame as a psychological, bodily, gendered, and social experience that pervades even the consulting room. They describe and analyze trauma and guilt against the background of a common Mediterranean culture they experienced while growing up, albeit from different gendered and class positions. The patient's modest presenting complaint of blushing opens into an exploration that results in an unexpectedly profound transformation. Ultimately, therapy helps him acknowledge and process his traumatic experience of circumcision and other traumas. It frees him from deep seated shame, puts him in touch with new desires and needs, and helps him develop a more authentic sense of self and more balanced experience of his masculinity. The focus of this paper is on the patient's dreams as they were narrated and reexperienced in therapy: as stories within the story of therapy. PMID- 29022848 TI - The Theory and Art of Child Psychotherapy: A Corrective Developmental Approach. AB - The history of child psychotherapy is sketched from the psychoanalytic pioneers Anna Freud and Melanie Klein to the popular "nondirective" approach of Virginia Axline. The author's approach to child psychotherapy, based on contemporary psychoanalytic theories, allows the therapist to play any parental role that helps to repair developmental deficiencies and conflicts. These include nurturing, supporting, mirroring, role modeling, challenging, and limit setting. Following Winnicott, psychotherapy is conceived as a play space in which therapist and child are both spontaneous. The value of interpretation and insight in child therapy is discussed. There follows a more detailed discussion of three major problem areas in child psychotherapy: handling anger and hostile aggression; handling issues related to sexuality; and handling narcissistic issues of inferiority and shame. PMID- 29022850 TI - The Devolution of Melancholia Into Psychosis: The Case of a Child Whose Mother Was Unable to Grieve. AB - The author explores the intersubjective aspect of the devolution of melancholia into psychosis, particularly as it involves the unconscious intersubjective role of the mother. The author considers the possibility that maternal inability to mourn contributes significantly to the foreclosure of the child's "tertiary processes" (the processes involved in the child's development of a differentiated autonomous self and symbolization). In the clinical case presented in detail in this paper, the child's undifferentiated experience with his mother (who was unable to grieve) left no room for the father as the necessary third element in the child's maturational processes. PMID- 29022851 TI - Recurrent cisplatin hypersensitivity reaction after first exposure: A case report. AB - Purpose Hypersensitivity reactions to platinum-based chemotherapies are well documented and are often a limiting factor in treating a variety of cancers. Allergy skin testing has been used to determine if repeat exposure is safe. We report a case of a false negative skin allergy test in an atypical presentation of cisplatin hypersensitivity reaction. Case report A 64-year-old male diagnosed with stage IVa squamous cell carcinoma of the hypopharynx who developed a delayed reaction of face swelling and dysphagia following exposure to a single dose of cisplatin. Skin allergy testing performed and was negative. On second dosing of cisplatin, the patient developed an immediate hypersensitivity reaction. Cisplatin was discontinued, and the patient was transitioned to cetuximab. The rest of chemoradiation therapy was completed without further incident. Discussion This case demonstrates the limited efficacy of skin allergy testing for cisplatin. Furthermore, it is an atypical presentation of cisplatin-related hypersensitivity as it occurred following the patient's first dose despite no prior exposure to platinum-based chemotherapy. Conclusion Skin allergy testing has limited sensitivity for platinum-based chemotherapy and caution should be exercised in weighing risk and benefits of re-exposure. Although rare, cisplatin hypersensitivity can present after first exposure. PMID- 29022852 TI - Association Between Financial Incentives for Regional Care Coordination and Health Care Resource Utilization Among Older Patients after Femoral Neck Fracture Surgery: A Retrospective Cohort Study Using a Claims Database. AB - The incidence rates of hip fracture have been increasing in Japan. Length of stay among hip fracture patients in Japan is much longer than other developed countries, and the Japanese government introduced financial incentives for regionally coordinated femoral neck fracture care to reduce health care resource utilization. The objective of this study was to evaluate whether the financial incentives reduce health care resource utilization among patients 75 years or older with femoral neck fracture in Japan. Claims data from the Fukuoka Prefecture Regional Association for Late-Stage Healthcare for Older People were analyzed for the period from April 2010 to March 2016. The authors identified 4641 eligible subjects after femoral neck fracture surgery, and categorized them into groups based on care pathways: coordinated care, integrated care, and other. Length of stay by care phase and total charges were used as measures of health care resource utilization. The models showed that coordinated and integrated care were significantly associated with shorter length of stay during perioperative care: coordinated care, multiplicative effect, 0.90 (P < 0.001); integrated care, 0.77 (P < 0.001). However, only integrated care was associated with shorter rehabilitation and overall length of stay: 0.66 (P < 0.001) in rehabilitation; 0.70 (P < 0.001) in overall duration. Integrated care also was associated with lower total charges: 0.70 (P < 0.001). Current financial incentives for regionally coordinated femoral neck fracture care do not affect health care resource utilization. Further health care reforms should be implemented to promote effective regional care coordination in Japan. PMID- 29022853 TI - Destination memory in social interaction: better memory for older than for younger destinations in normal aging? AB - Destination memory, a memory component allowing the attribution of information to its appropriate receiver (e.g., to whom did I lend my pen?), is compromised in normal aging. The present paper investigated whether older adults might show better memory for older destinations than for younger destinations. This hypothesis is based on empirical research showing better memory for older faces than for younger faces in older adults. Forty-one older adults and 44 younger adults were asked to tell proverbs to older and younger destinations (i.e., coloured faces). On a later recognition test, participants had to decide whether they had previously told some proverb to an older/younger destination or not. Prior to this task, participants reported their frequency of contact with other age groups. The results showed lower destination memory in older adults than in younger adults. Interestingly, older adults displayed better memory for older than for younger destinations. The opposite pattern was seen in younger adults. The low memory for younger destinations, as observed in older adults, was significantly correlated with limited exposure to younger individuals. These findings suggest that for older adults, the social experience can play a crucial role in the destination memory, at least as far as exposure to other-age groups is concerned. PMID- 29022854 TI - Single-center mid-term experience with chimney-graft technique for the preservation of flow to the supra-aortic branches. AB - Objectives To investigate the feasibility and the mid-term outcomes of the chimney-graft technique for the revascularization of supra-aortic branches in patients with thoracic aortic pathologies involving the aortic arch. Methods A retrospective analysis of a prospectively maintained database between January 2010 and July 2016 was performed. Primary endpoints were 30-day and overall mortality. Secondary endpoints were technical success, target vessel patency, stroke/transitory ischemic attack and type I/III endoleak rate. Results A total of 30 patients (80% male, median age 70.0 years) were treated using the chimney graft technique for the supra-aortic branches. The indication was a degenerative aneurysm in nine patients (32%) and a type B Stanford aortic dissection and a penetrating aortic ulcer in the descending aorta in seven patients (23%), respectively. In six patients (20.0%), the indication was an type Ia endoleak after previous endovascular thoracic repair, whereas a pseudoaneurysm after previous open repair of the descending aorta was the indication in one patient (3%). Twenty-three patients (77%) were treated electively, five (17%) emergently and two (7%) urgently because of free rupture. Technical success was achieved in 90% of patients. The 30-day/in-hospital mortality was 17% (5/30). A retrograde dissection was presented in five patients. Four patients experienced a cerebrovascular event. Eight patients had type Ia endoleak and 10 had type II. During the median follow-up of 16 months (range: 0-56), four further patients died: one in respiratory insufficiency, one due to a ruptured abdominal aortic aneurysm, one in meningitis and the last one for unknown reason. The chimney graft patency was 100%. According to the Kaplan-Meier curve, the estimated survival at one year was 66 +/- 9%. Conclusions The chimney-graft technique, despite a technically demanding strategy, is a useful tool as bailout procedure in our armamentarium for high-risk patients, unsuitable for open or hybrid repair. PMID- 29022855 TI - Association of left subclavian artery coverage without revascularization and spinal cord ischemia in patients undergoing thoracic endovascular aortic repair: A Vascular Quality Initiative(r) analysis. AB - Objectives Investigate the impact of left subclavian artery coverage without revascularization on spinal cord ischemia development in patients undergoing thoracic endovascular aortic repair. Methods The Vascular Quality Initiative thoracic endovascular aortic repair module (April 2011-July 2014) was analyzed. Patients undergoing left subclavian artery coverage were divided into two groups according to revascularization status. The association between left subclavian artery revascularization with the primary outcome of spinal cord ischemia and the secondary outcome of stroke was assessed with multivariable analysis adjusting for between-group baseline differences. Results The left subclavian artery was covered in 508 (24.6%) of the 2063 thoracic endovascular aortic repairs performed. Among patients with left subclavian artery coverage, 58.9% underwent revascularization. Spinal cord ischemia incidence was 12.1% in the group without revascularization compared to 8.5% in the group undergoing left subclavian artery revascularization (odds ratio (95%CI): 1.48(0.82-2.68), P = 0.189). Multivariable analysis adjustment identified an independent association between left subclavian artery coverage without revascularization and the incidence of spinal cord ischemia (adjusted odds ratio (95%CI): 2.29(1.03-5.14), P = 0.043). Although the incidence of stroke was also higher for the group with a covered and nonrevascularized left subclavian artery (12.1% versus 8.5%), this difference was not statistically significant after multivariable analysis (adjusted odds ratio (95%CI): 1.55(0.74-3.26), P = 0.244). Conclusion For patients undergoing left subclavian artery coverage during thoracic endovascular aortic repair, the addition of a revascularization procedure was associated with a significantly lower incidence of spinal cord ischemia. PMID- 29022857 TI - Back to School: 2017. PMID- 29022856 TI - Hybrid technique for the management of thoracoabdominal aortic thrombosis and symptomatic Trans-Atlantic Inter-Society Consensus "C" aorto-iliac disease. AB - Objective Thrombotic disease of the thoracic and abdominal aorta co-existing with aorto-iliac disease is a rare clinical association, which poses a great therapeutic challenge and adds to the complexity of the open surgical repair. Method We describe a case of 53-year-old woman with symptomatic thrombus in the thoracic and abdominal aorta down to the aortic bifurcation, which was successfully treated by Thoracic EndoVascular Aortic Repair via the left subclavian artery, open thrombectomy and aorto-iliac bypass. Result Completion angiogram performed through the axillary cannula showed good flow in the aorta, visceral vessels and iliac arteries. Conclusion This hybrid technical approach was a safe and effective strategy to tackle diffuse aortic thrombus with minimal morbidity and visceral embolization. Simultaneous aorto bi iliac bypass with thoracic endovascular aortic repair is a viable approach that can be undertaken with lesser morbidity and mortality risk as compared to complex and highly stressful total open surgical repair. PMID- 29022858 TI - Formulation and characterization of alprazolam-loaded nanoliposomes: screening of process variables and optimizing characteristics using RSM. AB - This research study aimed to develop a novel sustained release formulation of alprazolam that can also be used for transdermal delivery. This was carried out, for the first time, through encapsulation of alprazolam in nanoliposomes using ethanol injection. In order to obtain the best formulation, four process variables, including the solvent/nonsolvent volume ratio, phospholipid concentration, alprazolam concentration, and cholesterol content were considered as key factors. Response surface methodology (RSM) and a central composite design (CCD) model were used to investigate the effect of these factors on vesicle size (VS) and encapsulation efficiency (EE) as the major properties of nanoliposomes. Experimental data were statistically analyzed, and two significant quadratic models were developed to test the VS and EE responses. The findings indicate that alprazolam and phospholipid concentrations have a significant effect on the mean VS. However, EE was significantly affected by both the alprazolam and phospholipid concentrations and the cholesterol content. The optimized formulation for preparation of alprazolam-loaded nanoliposomes with appropriate VS and EE was suggested. Small unilamellar vesicles (SUVs), ranging in size from 50 to 100 nm were clearly observed in the transmission electron microscopy (TEM) images, which is appropriate for transdermal delivery of alprazolam. The study of the prepared nanoliposomes over 28 days at 4 degrees C confirmed the stability of the formulations containing cholesterol. The results of an in vitro release study of alprazolam-loaded nanoliposomes in phosphate buffered saline (PBS), pH 7.4 for 24 h at 37 degrees C using dialysis, indicated the sustained release of alprazolam due to encapsulation. PMID- 29022859 TI - A Community-Based Study of Staphylococcus aureus Nasal Colonization and Molecular Characterization Among Men Who Have Sex with Men. AB - PURPOSE: The aims of this cross-sectional study were to determine the prevalence of Staphylococcus aureus nasal colonization, evaluate community-related behavioral risk factors, and utilize staphylococcal protein A (spa) typing for epidemiological surveillance among community-based men who have sex with men from the National HIV Behavioral Surveillance System in Houston, Texas. METHODS: Descriptive methods and logistic analyses were used to determine associations with nasal colonization. RESULTS: The prevalence of S. aureus colonization was 29.7%; of these, 3.0% were colonized with methicillin-resistant S. aureus. Logistic analyses revealed that anal intercourse practices were associated with colonization (P < 0.05). A diverse population of 38 spa types was identified. CONCLUSION: Our findings suggest that an association among preferential sex practices, condom use, and S. aureus colonization exists and should be investigated further. PMID- 29022861 TI - Molecular characterization, prevalence and clinical relevance of Phodopus sungorus papillomavirus type 1 (PsuPV1) naturally infecting Siberian hamsters (Phodopus sungorus). AB - Phodopus sungorus papillomavirus type 1 (PsuPV1), naturally infecting Siberian hamsters (Phodopus sungorus) and clustering in the genus Pipapillomavirus (Pi PV), is only the second PV type isolated from the subfamily of hamsters. In silico analysis of three independent complete viral genomes obtained from cervical adenocarcinoma, oral squamous cell carcinoma and normal oral mucosa revealed that PsuPV1 encodes characteristic viral proteins (E1, E2, E4, E6, E7, L1 and L2) with conserved functional domains and a highly conserved non-coding region. The overall high prevalence (102/114; 89.5 %) of PsuPV1 infection in normal oral and anogenital mucosa suggests that asymptomatic infection with PsuPV1 is very frequent in healthy Siberian hamsters from an early age onward, and that the virus is often transmitted between both anatomical sites. Using type specific real-time PCR and chromogenic in situ hybridization, the presence of PsuPV1 was additionally detected in several investigated tumours (cervical adenocarcinoma, cervical adenomyoma, vaginal carcinoma in situ, ovarian granulosa cell tumour, mammary ductal carcinoma, oral fibrosarcoma, hibernoma and squamous cell papilloma) and normal tissues of adult animals. In the tissue sample of the oral squamous cell carcinoma individual, punctuated PsuPV1-specific in situ hybridization spots were detected within the nuclei of infected animal cells, suggesting viral integration into the host genome and a potential etiological association of PsuPV1 with sporadic cases of this neoplasm. PMID- 29022863 TI - Next-generation sequencing revealed divergence in deletions of the preS region in the HBV genome between different HBV-related liver diseases. AB - In order to investigate if deletion patterns of the preS region can predict liver disease advancement, the preS region of the hepatitis B virus (HBV) genome in 45 chronic hepatitis B (CHB) and 94 HBV-related hepatocellular carcinoma (HCC) patients was sequenced by next-generation sequencing (NGS) and the percentages of nucleotide deletion in the preS region were analysed. Hierarchical clustering and heatmaps based on deletion percentages of preS revealed different deletion patterns between CHB and HCC patients. Intergenotype comparison also indicated divergence in preS deletions between HBV genotype B and C. No significant difference was found in preS deletion patterns between sera and matched adjacent non-tumour tissues. Based on hierarchical clustering, HCC patients were classed into two groups with different preS deletion patterns and different clinical features. Finally, the support vector machine (SVM) model was trained on preS nucleotide deletion percentages and used to predict HCC versus CHB patients. The prediction performance was assessed with fivefold cross-validation and independent cohort validation. The median area under the curve (AUC) was 0.729 after repeating SVM 500 times with fivefold cross-validations. After parameter optimization, the SVM model was used to predict an independent cohort with 51 CHB patients and 72 HCC patients and the AUC was 0.727. In conclusion, the use of the NGS method revealed a prominent divergence in preS deletion patterns between disease groups and virus genotypes, but not between different tissue types. Quantitative NGS data combined with a machine learning method could be a powerful approach for prediction of the status of different diseases. PMID- 29022864 TI - Reverse genetic system, genetically stable reporter viruses and packaged subgenomic replicon based on a Brazilian Zika virus isolate. AB - Zika virus (ZIKV, genus Flavivirus) has emerged as a major mosquito-transmitted human pathogen, with recent outbreaks associated with an increased incidence of neurological complications, particularly microcephaly and the Guillain-Barre syndrome. Because the virus has only very recently emerged as an important pathogen, research is being hampered by a lack of reliable molecular tools. Here we report an infectious cDNA (icDNA) clone for ZIKV isolate BeH819015 from Brazil, which was selected as representative of South American ZIKV isolated at early stages of the outbreak. icDNA clones were assembled from synthetic DNA fragments corresponding to the consensus sequence of the BeH819015 isolate. Virus rescued from the icDNA clone had properties identical to a natural ZIKV isolate from South America. Variants of the clone-derived virus, expressing nanoluciferase, enhanced green fluorescent or mCherry marker proteins in both mammalian and insect cells and being genetically stable for multiple in vitro passages, were obtained. A ZIKV subgenomic replicon, lacking a prM- and E glycoprotein encoding region and expressing a Gaussia luciferase marker, was constructed and shown to replicate both in mammalian and insect cells. In the presence of the Semliki Forest virus replicon, expressing ZIKV structural proteins, the ZIKV replicon was packaged into virus-replicon particles. Efficient reverse genetic systems, genetically stable marker viruses and packaged replicons offer significant improvements for biological studies of ZIKV infection and disease, as well as for the development of antiviral approaches. PMID- 29022862 TI - Future research to underpin successful peste des petits ruminants virus (PPRV) eradication. AB - Peste des petits ruminants virus (PPRV) is a significant pathogen of small ruminants and is prevalent in much of Africa, the Near and Middle East and Asia. Despite the availability of an efficacious and cheap live-attenuated vaccine, the virus has continued to spread, with its range stretching from Morocco in the west to China and Mongolia in the east. Some of the world's poorest communities rely on small ruminant farming for subsistence and the continued endemicity of PPRV is a constant threat to their livelihoods. Moreover, PPRV's effects on the world's population are felt broadly across many economic, agricultural and social situations. This far-reaching impact has prompted the Food and Agriculture Organization of the United Nations (FAO) and the World Organisation for Animal Health (OIE) to develop a global strategy for the eradication of this virus and its disease. PPRV is a morbillivirus and, given the experience of these organizations in eradicating the related rinderpest virus, the eradication of PPRV should be feasible. However, there are many critical areas where basic and applied virological research concerning PPRV is lacking. The purpose of this review is to highlight areas where new research could be performed in order to guide and facilitate the eradication programme. These areas include studies on disease transmission and epidemiology, the existence of wildlife reservoirs and the development of next-generation vaccines and diagnostics. With the support of the international virology community, the successful eradication of PPRV can be achieved. PMID- 29022865 TI - Toscana virus cap-snatching and initiation of transcription. AB - Toscana virus (TOSV) is an arthropod-borne phlebovirus within the family Phenuiviridae in the order Bunyavirales. It seems to be an important agent of human meningoencephalitis in the warm season in the Mediterranean area. Because the polymerase of Bunyavirales lacks a capping activity, it cleaves short-capped RNA leaders derived from the host cell, and uses them to initiate viral mRNA synthesis. To determine the size and nucleotide composition of the host-derived RNA leaders, and to elucidate the first steps of TOSV transcription initiation, we performed a high-throughput sequencing of the 5' end of TOSV mRNAs in infected cells at different times post-infection. Our results indicated that the viral polymerase cleaved the host-capped RNA leaders within a window of 11-16 nucleotides. A single population of cellular mRNAs could be cleaved at different sites to prime the synthesis of several viral mRNA species. The majority of the mRNA resulted from direct priming, but we observed mRNAs resulting from several rounds of prime-and-realign events. Our data suggest that the different rounds of the prime-and-realign mechanism result from the blocking of the template strand in a static position in the active site, leading to the slippage of the nascent strand by two nucleotides when the growing duplex is sorted out from the active site. To minimize this rate-limiting step, TOSV polymerase cleaves preferentially capped RNA leaders after GC, so as to greatly reduce the number of cycles of priming and realignment, and facilitate the separation of the growing duplex. PMID- 29022866 TI - ICTV Virus Taxonomy Profile: Hepeviridae. AB - The family Hepeviridae includes enterically transmitted small non-enveloped positive-sense RNA viruses. It includes the genera Piscihepevirus, whose members infect fish, and Orthohepevirus, whose members infect mammals and birds. Members of the genus Orthohepevirus include hepatitis E virus, which is responsible for self-limiting acute hepatitis in humans and several mammalian species; the infection may become chronic in immunocompromised individuals. Extrahepatic manifestations of Guillain-Barre syndrome, neuralgic amyotrophy, glomerulonephritis and pancreatitis have been described in humans. Avian hepatitis E virus causes hepatitis-splenomegaly syndrome in chickens. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the taxonomy of the Hepeviridae, which is available at www.ictv.global/report/hepeviridae. PMID- 29022867 TI - Response to photo-oxidative stress of Pseudomonas aeruginosa PAO1 mutants impaired in different functions. AB - Clinicians often have to deal with infections that are difficult to control because they are caused by superbugs resistant to many antibiotics. Alternatives to antibiotic treatment include antimicrobial photodynamic therapy (aPDT). The photodynamic process causes bacterial death, inducing oxidative stress through the photoactivation of photosensitizer molecules in the presence of oxygen. No PDT-resistant bacteria have been selected to date, thus the response to photo oxidative stress in non-phototrophic bacteria needs further investigation. The opportunistic pathogen Pseudomonas aeruginosa, in particular, has been shown to be more tolerant to PDT than other micro-organisms. In order to find any genetic determinants involved in PDT-tolerance, a panel of transposon mutants of P. aeruginosa PAO1 involved in the quorum sensing signalling system and membrane cytoplasmic transport were photoinactivated as part of this study. Two pseudomonas quinolone signalling (PQS) knock-out mutants, pqsH- and pqsC-, were as PDT-sensitive as the PAO1 wild-type strains. Two PQS hyperproducer variants, pqsA- and rsaL-, were shown to be more tolerant to photo-oxidative stress than the wild-type strain. In the pqsA- mutant, the hyperpigmentation due to the presence of phenazines could protect cells against PDT stress, while in rsaL- no pigmentation was detectable. Furthermore, a mutant impaired in an ATP-binding cassette transport involved in maintaining the asymmetry of the outer membrane was significantly more tolerant to photo-oxidative stress than the wild-type strain. These observations support the involvement of quorum sensing and the importance of the bacterial cell envelope when dealing with photo-oxidative stress induced by photodynamic treatment. PMID- 29022868 TI - The nitrogen-regulated response regulator NrrA is a conserved regulator of glycogen catabolism in beta-cyanobacteria. AB - Cyanobacteria acclimatize to nitrogen deprivation by changing cellular metabolism. The nitrogen-regulated response regulator A (NrrA) is involved in regulation of carbon metabolism in response to nitrogen deprivation. However, it has not been elucidated whether these regulatory functions of NrrA are particular to a few model strains or are general among diverse cyanobacteria. In this study, we showed that regulation and functions of NrrA were highly conserved among beta cyanobacteria, which included physiologically and ecologically diverse strains. All beta-cyanobacteria had the nrrA gene, while it was absent in alpha cyanobacteria. The canonical NtcA-dependent promoter sequence was found upstream of the nrrA genes in most beta-cyanobacteria, and its expression was indeed induced by nitrogen deprivation. Biochemical and physiological analyses of NrrA from phylogenetically distinct cyanobacteria indicated that regulation of NrrA activity and NrrA functions, namely activation of glycogen catabolism, were also common to beta-cyanobacteria. These results support the conclusion that NrrA plays an important role in acclimatization to nitrogen deprivation, and that activation of glycogen catabolism is a primitive response to nitrogen deprivation in beta-cyanobacteria. PMID- 29022869 TI - Dynamic regulatory interaction between cytomegalovirus major tegument protein pp65 and protein kinase pUL97 in intracellular compartments, dense bodies and virions. AB - Human cytomegalovirus (HCMV) is a ubiquitous pathogen of considerable clinical importance. Understanding the processes that are important for viral replication is essential for the development of therapeutic strategies against HCMV infection. The HCMV-encoded protein kinase pUL97 is an important multifunctional regulator of viral replication. Several viral and cellular proteins are phosphorylated by pUL97. The phosphoprotein pp65 is one important substrate of pUL97. It is the most abundant tegument protein of HCMV virions, mediating the upload of other virion constituents and contributing to particle integrity. Further to that, it interferes with host innate immune defences, thereby enabling efficient viral replication. By applying different approaches, we characterized the pp65-pUL97 interaction in various compartments. Specifically, the pUL97 interaction domain of pp65 was defined (282-415). A putative cyclin bridge that enhances pUL97-pp65 interaction was identified. The impact of pUL97 mutation on virion and dense body morphogenesis was addressed using pUL97 mutant viruses. Alterations in the proteome of viral particles were seen, especially with mutant viruses expressing cytoplasmic variants of pUL97. On the basis of these data we postulate a so far poorly recognized functional relationship between pp65 and pUL97, and present a refined model of pp65-pUL97 interaction. PMID- 29022871 TI - A postmortem analysis of NMDA ionotropic and group 1 metabotropic glutamate receptors in the nucleus accumbens in schizophrenia. AB - BACKGROUND: The nucleus accumbens (NAcc) has been implicated in the pathology and treatment of schizophrenia. Recent postmortem evidence suggests a hyperglutamatergic state in the NAcc. With the present study we aimed to explore possible glutamatergic alterations in the NAcc of a large schizophrenia cohort. METHODS: We performed immunoblots on postmortem NAcc samples from 30 individuals who had schizophrenia and 30 matched controls. We examined the protein expression of primary glutamatergic receptors, including the N-methyl-D-aspartate (NMDA) receptor (NR1, NR2A and NR2B subunits) and the group 1 metabotropic glutamate receptor (mGluR1 and mGluR5; dimeric and monomeric forms). In addition, we measured the group 1 mGluR endogenous regulators, neurochondrin and Homer1b/c, which have recently been implicated in the pathophysiology of schizophrenia. RESULTS: Protein levels of glutamatergic receptors and endogenous regulators were not significantly different between the controls and individuals who had schizophrenia. Furthermore, mGluR5, but not mGluR1, showed a positive association with NMDA receptor subunits, suggesting differential interactions between these receptors in this brain region. LIMITATIONS: Investigation of these proteins in antipsychotic-naive individuals, in addition to the subregions of the NAcc and subcellular fractions, will strengthen future studies. CONCLUSION: The present study does not provide evidence for glutamatergic abnormalities within the NAcc of individuals with schizophrenia. Taken together with the results of previous studies, these findings suggest NMDA receptors and group 1 mGluRs are altered in a brain region-dependent manner in individuals with schizophrenia. The differential associations between mGluR1, mGluR5 and NMDA receptors observed in this study warrant further research into the interactions of these proteins and the implications for the therapeutic and adverse effect profile of glutamatergic based novel therapeutics. PMID- 29022870 TI - Molecular characterization of Porcine sapelovirus in Hunan, China. AB - Porcine sapeloviruses (PSVs) are widely distributed in pig populations; however, little information on their evolutionary history and the mechanisms driving their divergence is available. Therefore, in the present study, 241 fecal samples and 91 intestinal contents collected from pigs at 26 farms in Hunan, China, were tested for the presence of PSVs. The overall PSV positivity rate was 46.39 %, with a particularly high infection rate detected in nursery and fattening pigs. A total of 29 PSV strains (PSV-HuNs) were isolated, with these showing high genetic diversity based on phylogenetic and pairwise distance analyses of the capsid protein gene sequences. Incongruence between phylognetic trees of the capsid protein and 3CD regions indicated frequent recombination within the PSV-HuNs, and a putative recombinant hotspot near the 3' end of the P1 region was identified. Our results suggested that recombination played an important role in driving PSV genetic diversity and evolution. PMID- 29022873 TI - Adolescent THC exposure in female rats leads to cognitive deficits through a mechanism involving chromatin modifications in the prefrontal cortex. AB - BACKGROUND: Increasing cannabis consumption among adolescents, studies that link its early use with mental illnesses, and the political debate on cannabis legalization together call for an urgent need to study molecular underpinnings of adolescent brain vulnerability. The emerging role of epigenetic mechanisms in psychiatric diseases led us to hypothesize that epigenetic alterations could play a role in causes and subsequent development of the depressive/psychotic-like phenotype induced by adolescent, but not adult, Delta9-tetrahydrocannabinol (THC) exposure in female rats. METHODS: We performed a time-course analysis of histone modifications, chromatin remodelling enzymes and gene expression in the prefrontal cortex of female rats after adolescent and adult THC exposure. We also administered a specific epigenetic drug (chaetocin) with THC to investigate its impact on THC-induced behavioural alterations. RESULTS: Adolescent THC exposure induced alterations of selective histone modifications (mainly H3K9me3), impacting the expression of genes closely associated with synaptic plasticity. Changes in both histone modifications and gene expression were more widespread and intense after adolescent treatment, suggesting specific adolescent susceptibility. Adolescent THC exposure significantly increased Suv39H1 levels, which could account for the enhanced H3K9me3. Pharmacological blockade of H3K9me3 during adolescent THC treatment prevented THC-induced cognitive deficits, suggesting the relevant role played by H3K9me3 in THC-induced effects. LIMITATIONS: Only female rats were investigated, and the expression studies were limited to a specific subset of genes. CONCLUSION: Through a mechanism involving SUV39H1, THC modifies histone modifications and, thereby, expression of plasticity genes. This pathway appears to be relevant for the development of cognitive deficits. PMID- 29022872 TI - Arterial stiffness is associated with depression in middle-aged men - the Maastricht Study. AB - BACKGROUND: Arterial stiffening may underlie the association between depression and cardiovascular disease (CVD), but reported data are inconsistent. We investigated the associations between aortic stiffness and major depressive disorder (MDD) and depressive symptoms, and whether these differed by sex and age. METHODS: We measured carotid to femoral pulse wave velocity (cfPWV) using applanation tonometry, and we assessed depression using the Mini-International Neuropsychiatric Interview (MINI) and the Patient Health Questionnaire-9 (PHQ-9) in a cohort of participants from The Maastricht Study. Logistic and negative binominal models were adjusted for age, type 2 diabetes mellitus (T2DM), mean arterial pressure (MAP) and CVD risk factors. RESULTS: We included 2757 participants in our analyses (48.8% men, mean age 59.8 +/- 8.1 yr, 27% T2DM). We found that cfPWV was associated with MDD in men (fully adjusted odds ratio [OR] 2.36, 95% confidence interval [CI] 1.45-3.84), but not in women (OR 1.57, 95% CI 0.93-2.66), aged 60 years or younger. The ORs were not significant in individuals older than 60 years (men: OR 1.03, 95% CI 0.63-1.68; women: OR 0.64, 95% CI 0.32 1.31). Similarly, cfPWV was associated with a higher PHQ-9 score in men (rate ratio 1.28, 95% CI 1.09-1.52), but not in women (rate ratio 1.11, 95% CI 0.99 1.23), aged 60 years or younger. Associations were not significant in individuals older than 60 years (men: rate ratio 0.96, 95% CI 0.84-1.08; women: rate ratio 1.00, 95% CI 0.90-1.12). LIMITATIONS: We cannot rule out reversed causation in this cross-sectional study. CONCLUSION: Greater aortic stiffness is associated with MDD and depressive symptoms among middle-aged men and to a lesser extent in women, whereas this association was not observed in old age. PMID- 29022874 TI - Uncoupling of dynamin polymerization and GTPase activity revealed by the conformation-specific nanobody dynab. AB - Dynamin is a large GTPase that forms a helical collar at the neck of endocytic pits, and catalyzes membrane fission (Schmid and Frolov, 2011; Ferguson and De Camilli, 2012). Dynamin fission reaction is strictly dependent on GTP hydrolysis, but how fission is mediated is still debated (Antonny et al., 2016): GTP energy could be spent in membrane constriction required for fission, or in disassembly of the dynamin polymer to trigger fission. To follow dynamin GTP hydrolysis at endocytic pits, we generated a conformation-specific nanobody called dynab, that binds preferentially to the GTP hydrolytic state of dynamin-1. Dynab allowed us to follow the GTPase activity of dynamin-1 in real-time. We show that in fibroblasts, dynamin GTP hydrolysis occurs as stochastic bursts, which are randomly distributed relatively to the peak of dynamin assembly. Thus, dynamin disassembly is not coupled to GTPase activity, supporting that the GTP energy is primarily spent in constriction. PMID- 29022876 TI - Local processing in neurites of VGluT3-expressing amacrine cells differentially organizes visual information. AB - Neurons receive synaptic inputs on extensive neurite arbors. How information is organized across arbors and how local processing in neurites contributes to circuit function is mostly unknown. Here, we used two-photon Ca2+ imaging to study visual processing in VGluT3-expressing amacrine cells (VG3-ACs) in the mouse retina. Contrast preferences (ON vs. OFF) varied across VG3-AC arbors depending on the laminar position of neurites, with ON responses preferring larger stimuli than OFF responses. Although arbors of neighboring cells overlap extensively, imaging population activity revealed continuous topographic maps of visual space in the VG3-AC plexus. All VG3-AC neurites responded strongly to object motion, but remained silent during global image motion. Thus, VG3-AC arbors limit vertical and lateral integration of contrast and location information, respectively. We propose that this local processing enables the dense VG3-AC plexus to contribute precise object motion signals to diverse targets without distorting target-specific contrast preferences and spatial receptive fields. PMID- 29022875 TI - Spatio-temporal control of mutualism in legumes helps spread symbiotic nitrogen fixation. AB - Mutualism is of fundamental importance in ecosystems. Which factors help to keep the relationship mutually beneficial and evolutionarily successful is a central question. We addressed this issue for one of the most significant mutualistic interactions on Earth, which associates plants of the leguminosae family and hundreds of nitrogen (N2)-fixing bacterial species. Here we analyze the spatio temporal dynamics of fixers and non-fixers along the symbiotic process in the Cupriavidus taiwanensis-Mimosa pudica system. N2-fixing symbionts progressively outcompete isogenic non-fixers within root nodules, where N2-fixation occurs, even when they share the same nodule. Numerical simulations, supported by experimental validation, predict that rare fixers will invade a population dominated by non-fixing bacteria during serial nodulation cycles with a probability that is function of initial inoculum, plant population size and nodulation cycle length. Our findings provide insights into the selective forces and ecological factors that may have driven the spread of the N2-fixation mutualistic trait. PMID- 29022877 TI - Striatal adenosine A2A receptor neurons control active-period sleep via parvalbumin neurons in external globus pallidus. AB - Dysfunction of the striatum is frequently associated with sleep disturbances. However, its role in sleep-wake regulation has been paid little attention even though the striatum densely expresses adenosine A2A receptors (A2ARs), which are essential for adenosine-induced sleep. Here we showed that chemogenetic activation of A2AR neurons in specific subregions of the striatum induced a remarkable increase in non-rapid eye movement (NREM) sleep. Anatomical mapping and immunoelectron microscopy revealed that striatal A2AR neurons innervated the external globus pallidus (GPe) in a topographically organized manner and preferentially formed inhibitory synapses with GPe parvalbumin (PV) neurons. Moreover, lesions of GPe PV neurons abolished the sleep-promoting effect of striatal A2AR neurons. In addition, chemogenetic inhibition of striatal A2AR neurons led to a significant decrease of NREM sleep at active period, but not inactive period of mice. These findings reveal a prominent contribution of striatal A2AR neuron/GPe PV neuron circuit in sleep control. PMID- 29022878 TI - Stochastic variation in the initial phase of bacterial infection predicts the probability of survival in D. melanogaster. AB - A central problem in infection biology is understanding why two individuals exposed to identical infections have different outcomes. We have developed an experimental model where genetically identical, co-housed Drosophila given identical systemic infections experience different outcomes, with some individuals succumbing to acute infection while others control the pathogen as an asymptomatic persistent infection. We found that differences in bacterial burden at the time of death did not explain the two outcomes of infection. Inter individual variation in survival stems from variation in within-host bacterial growth, which is determined by the immune response. We developed a model that captures bacterial growth dynamics and identifies key factors that predict the infection outcome: the rate of bacterial proliferation and the time required for the host to establish an effective immunological control. Our results provide a framework for studying the individual host-pathogen parameters governing the progression of infection and lead ultimately to life or death. PMID- 29022881 TI - Primary HIV infection in patients with acute hepatitis B: a report of two cases. AB - We describe two patients admitted to our institution with a diagnosis of sexually acquired acute hepatitis B who also had underlying hyper acute HIV infection. Both individuals reported high rates of condomless sex. Antiviral therapy active against HBV and HIV was started within days after diagnosis. Treatment was well tolerated and led to a rapid control of both infections and hepatitis B surface antibody seroconversion. The efficacy and safety of contemporary antiretroviral drug combinations suggest that treatment of acute HIV infection is feasible in patients with acute hepatitis B. PMID- 29022882 TI - Friction effect of stator in a multi-walled CNT-based rotation transmission system. AB - The rotation transmission system (RTS) made from co-axial multi-walled nanotubes (MWNTs) has the function of regulating the input rotation from a nanomotor. The mechanism for the regulation is that the friction among the tubes during rotation governs the rotation of the rotors in the nanosystem. By integrating a rotary nanomotor and a nanobearing into an MWNT-based RTS, it is discovered that the stator (outer tube) provides relatively greater friction on the rotors by penetrating the motor tube, which has a higher stable rotational frequency. And the output rotation of the rotors in the system depends significantly on the temperature of the system, as the rotor tubes are slightly longer than the motor tube. Briefly, at low temperatures, say 8 K, the rotors rotate synchronously with the motor. However, at high temperatures, the rotors rotate slower than the motor with a bigger difference between their rotational frequencies. Hence, the output rotational frequencies can be adjusted by changing the temperature as well as the input rotational frequency. PMID- 29022879 TI - Sparse genetic tracing reveals regionally specific functional organization of mammalian nociceptors. AB - The human distal limbs have a high spatial acuity for noxious stimuli but a low density of pain-sensing neurites. To elucidate mechanisms underlying regional differences in processing nociception, we sparsely traced non-peptidergic nociceptors across the body using a newly generated MrgprdCreERT2 mouse line. We found that mouse plantar paw skin is also innervated by a low density of Mrgprd+ nociceptors, while individual arbors in different locations are comparable in size. Surprisingly, the central arbors of plantar paw and trunk innervating nociceptors have distinct morphologies in the spinal cord. This regional difference is well correlated with a heightened signal transmission for plantar paw circuits, as revealed by both spinal cord slice recordings and behavior assays. Taken together, our results elucidate a novel somatotopic functional organization of the mammalian pain system and suggest that regional central arbor structure could facilitate the "enlarged representation" of plantar paw regions in the CNS. PMID- 29022883 TI - Statistical analysis of the reduction process of graphene oxide probed by Raman spectroscopy mapping. AB - We propose a method for monitoring the large-scale homogeneity of the reduction process of graphene oxide. For this purpose, a Raman mapping technique is employed to probe the evolution of the phonon properties of two different graphene oxide (GO) thin films upon controllable thermal reduction. The reduction of GO is reflected by the upshift of the statistical distribution of the relative intensity ratio of the G and D peaks (I D/I G) of the Raman spectra and is consistent with the ratio obtained for chemically reduced GO. In addition, the shifts of the position distributions of the main Raman modes ([Formula: see text], [Formula: see text]) and their cross-correlation with the I D/I G ratio provides evidence of a change of the doping level, demonstrating the influence of reduction processes on GO films. PMID- 29022884 TI - Reply to 'Comment on Photoplethysmography sampling frequency: pilot assessment of how low can we go to analyze pulse rate variability with reliability?' AB - In his Comment, Hejjel argued that some contents previously published by us were inappropriate for the statistical analysis of pulse rate variability due to high inter-individual dispersion. He also claimed that data collection over 5 min for short-term HRV analysis and data collection for an abnormal range of people were required. In order to give our perspective on these issues, we will discuss and clarify some of the existing literature and our own work on this subject, underlining the difference between electrocardiogram and photoplethysmogram. PMID- 29022880 TI - Genetically tunable frustration controls allostery in an intrinsically disordered transcription factor. AB - Intrinsically disordered proteins (IDPs) present a functional paradox because they lack stable tertiary structure, but nonetheless play a central role in signaling, utilizing a process known as allostery. Historically, allostery in structured proteins has been interpreted in terms of propagated structural changes that are induced by effector binding. Thus, it is not clear how IDPs, lacking such well-defined structures, can allosterically affect function. Here, we show a mechanism by which an IDP can allosterically control function by simultaneously tuning transcriptional activation and repression, using a novel strategy that relies on the principle of 'energetic frustration'. We demonstrate that human glucocorticoid receptor tunes this signaling in vivo by producing translational isoforms differing only in the length of the disordered region, which modulates the degree of frustration. We expect this frustration-based model of allostery will prove to be generally important in explaining signaling in other IDPs. PMID- 29022885 TI - Comment on 'Photoplethysmography sampling frequency: pilot assessment of how low can we go to analyze pulse rate variability with reliability?' AB - Accurate pulse rate detection is essential for reliable pulse rate variability analysis. On the other hand, minimizing the sampling frequency is essential to reduce the amount of data and computational needs, and consequently the power consumption of mobile/wearable devices, extending their operating hours. Determining the variability of physiological parameters needs a new paradigm since there is a limited possibility of calculating an average eliminating random error of measurement. Finding the optimal sampling rate depends on the actual investigation, the expected variability and variability-changes of the study population in order to get valid HRV parameters. PMID- 29022886 TI - Computational methods for 2D materials: discovery, property characterization, and application design. AB - The discovery of two-dimensional (2D) materials comes at a time when computational methods are mature and can predict novel 2D materials, characterize their properties, and guide the design of 2D materials for applications. This article reviews the recent progress in computational approaches for 2D materials research. We discuss the computational techniques and provide an overview of the ongoing research in the field. We begin with an overview of known 2D materials, common computational methods, and available cyber infrastructures. We then move onto the discovery of novel 2D materials, discussing the stability criteria for 2D materials, computational methods for structure prediction, and interactions of monolayers with electrochemical and gaseous environments. Next, we describe the computational characterization of the 2D materials' electronic, optical, magnetic, and superconducting properties and the response of the properties under applied mechanical strain and electrical fields. From there, we move on to discuss the structure and properties of defects in 2D materials, and describe methods for 2D materials device simulations. We conclude by providing an outlook on the needs and challenges for future developments in the field of computational research for 2D materials. PMID- 29022887 TI - Delocalized versus localized excitations in the photoisomerization of azobenzene functionalized alkanethiolate SAMs. AB - Self-assembled monolayers of azobenzene-functionalized alkanethiolates form molecular ensembles with preferential orientation and significant excitonic coupling among the azobenzene chromophores. We have studied their optical switching with differential reflectance and two-photon-photoemission spectroscopy tuning the excitation wavelength through the excitonically broadened S2 absorption band. While the effective isomerization cross-section increases towards shorter wavelengths, the fraction of cis molecules in the photostationary state decreases. We attribute this observation to the absorption of the cis isomer in the SAM. The photoisomerization in the SAM thereby follows the behavior of non-interacting chromophores in solution, despite the formation of H aggregates. Our study thus reveals that photoswitching occurs via localized excitations while strongly excitonically coupled, delocalized states do not contribute significantly. PMID- 29022888 TI - Is there a link between mitochondrial DNA and blood pressure? PMID- 29022889 TI - ARMC5 is not implicated in familial hyperaldosteronism type II (FH-II). PMID- 29022890 TI - Elevated microRNA-34a contributes to trophoblast cell apoptosis in preeclampsia by targeting BCL-2. AB - Preeclampsia (PE) is one of the most common pregnancy-specific pathologic complications, and is characterised by onset of hypertension and proteinuria. Placental trophoblast cell apoptosis is generally accepted as a major cause of PE. However, the details of the mechanism underlying the condition remain unclear. Here, we aimed to investigate a possible association between microRNA (miR)-34a and human trophoblast cell apoptosis during PE. We evaluated miR-34a expression in placentas from patients with PE compared with those from healthy pregnant individuals. Furthermore, we measured apoptosis rate after miR-34a mimic and/or inhibitor transfection in vitro, and identified B-cell CLL/lymphoma 2 (BCL 2) as a target of miR-34a. We found that miR-34a levels were significantly higher in placental tissues from patients with PE than in normal placentas. Upregulation of miR-34a induced trophoblast cell apoptosis in PE by inhibiting expression of BCL-2 protein. miR-34a inhibition reversed miR-34a-induced apoptosis in the HTR 8/SVneo human trophoblast cell line. Our findings indicate that miR-34a may be linked to the occurrence of PE via effects on BCL-2 in the human placenta, and may therefore provide a potential therapeutic target for PE. PMID- 29022891 TI - Escin induces caspase-dependent apoptosis and autophagy through the ROS/p38 MAPK signalling pathway in human osteosarcoma cells in vitro and in vivo. AB - Osteosarcoma is one of the most malignant neoplasms in adolescents, and it generally develops multidrug resistance. Escin, a natural mixture of triterpene saponins isolated from Aesculus hippocastanum (horse chestnut), has demonstrated potent anti-tumour potential in vitro and in vivo. In the present study, we found that escin inhibited osteosarcoma proliferation in a dose- and time-dependent manner. Additionally, escin-induced apoptosis was evidenced by the increased expression of caspase-related proteins and the formation of apoptotic bodies. Escin also induced autophagy, with elevated LC3, ATG5, ATG12 and Beclin expression as well as autophagosome formation. Inhibition of escin-induced autophagy promoted apoptosis. Moreover, p38 mitogen-activated protein kinases (MAPKs) and reactive oxygen species (ROS) were activated by escin. A p38 MAPK inhibitor partially attenuated the autophagy and apoptosis triggered by escin, but a ROS scavenger showed a greater inhibitory effect. Finally, the therapeutic efficacy of escin against osteosarcoma was demonstrated in an orthotopic model. Overall, escin counteracted osteosarcoma by inducing autophagy and apoptosis via the activation of the ROS/p38 MAPK signalling pathway; these findings provide evidence for escin as a novel and potent therapeutic for the treatment of osteosarcoma. PMID- 29022892 TI - The lncRNA HULC functions as an oncogene by targeting ATG7 and ITGB1 in epithelial ovarian carcinoma. AB - Highly upregulated in liver cancer (HULC) is a long noncoding RNA (lncRNA), which has recently been identified as a key regulator in the progression of hepatocellular carcinoma, gliomas and gastric cancer. However, its role in epithelial ovarian carcinoma (EOC) remains unknown. In this study, HULC expression was examined in EOC, borderline and benign ovarian tumors, and normal ovarian tissues by RT-PCR. Ovarian cancer cell phenotypes, as well as autophagy associated proteins were examined after HULC overexpression or downregulation by plasmid or small interfering RNA (siRNA) transfection, respectively. LncRNA protein interactions were examined by ribonucleoprotein immunoprecipitation (RIP) assays. We found that HULC expression levels were higher in EOC tissues than normal samples. HULC overexpression induced cell proliferation, migration, invasion, whereas reduced cell apoptosis in vitro and induced tumor growth in vivo. In contrast, downregulation of HULC by siRNA transfection reduced cell proliferation, migration and invasion, and induced cell apoptosis and autophagy. Our results showed that HULC overexpression reduced ATG7, LC3-II and LAMP1 expression, while inducing SQSTM1 (P62) and ITGB1 expression. HULC downregulation had the opposite effects. Furthermore, RIP indicated that ATG7 interacted with HULC; ATG7 downregulation also induced cell proliferation, reduced apoptosis and inhibited autophagy in vitro by reducing LC3-II and LAMP1 expression, while inducing SQSTM1 expression. Furthermore, ATG7 co-transfection with HULC reversed the oncogenic effects of HULC both in vitro and in vivo; however, downregulating ATG7 did not affect cell migration and invasive ability. We found that ITGB1 siRNA co-transfection with HULC reversed the function of HULC in inducing ovarian cancer cell migration and invasive ability. Taken together, our results show that HULC may promote ovarian carcinoma tumorigenesis by inhibiting ATG7 and inducing progression by regulating ITGB1. PMID- 29022893 TI - MYCN contributes to the malignant characteristics of erythroleukemia through EZH2 mediated epigenetic repression of p21. AB - MYC proto-oncogene family including c-myc and n-myc (MYCN) are critical for normal cell development and tumorigenesis. Overexpression of c-myc causes acute erythroleukemia in vivo. However, the role of MYCN in acute erythroleukemia remains poorly understood. In this study, we found that the patients with erythroleukemia showed higher expression of MYCN than normal controls. In vitro experiments, knockdown of MYCN resulted in decreased cell proliferation, elevated autonomously cell apoptosis and increased P21-mediated cell senescence. On the contrary, overexpression of MYCN obviously promoted cell proliferation, and induced erythroid differentiation block and apoptosis resistance to cytotoxic agent. Further gene microarray and functional analysis revealed that EZH2 is a target of MYCN. Knockdown of MYCN inhibited the expression of EZH2, and then activated p21 expression through removal of H3K27me3 at the p21 promoter. Overexpression of ezh2 could antagonize the p21 activation caused by MYCN knockdown. In addition, Aurora inhibitor MLN8237 inhibited the proliferation of erythroleukemia cells through repression of MYCN/EZH2 axis, whereas it minimally affected the normal hematopoietic cells. In conclusion, MYCN contributes to the malignant characteristics of erythroleukemia through EZH2-meidated epigenetic repression of p21. MYCN may serve as a therapy target for the patients with acute erythroleukemia. PMID- 29022894 TI - Adiponectin controls the apoptosis and the expression of tight junction proteins in brain endothelial cells through AdipoR1 under beta amyloid toxicity. AB - Alzheimer's disease (AD) is the most common neurodegenerative disease, characterized by excessive beta amyloid (Abeta) deposition in brain, leading to blood-brain barrier (BBB) disruption. The mechanisms of BBB disruption in AD are still unclear, despite considerable research. The adipokine adiponectin is known to regulate various metabolic functions and reduce inflammation. Though adiponectin receptors have been reported in the brain, its role in the central nervous system has not been fully characterized. In the present study, we investigate whether adiponectin contributes to the tight junction integrity and cell death of brain endothelial cells under Abeta-induced toxicity conditions. We measured the expression of adiponectin receptors (AdipoR1 and AdipoR2) and the alteration of tight junction proteins in in vivo 5xFAD mouse brain. Moreover, we examined the production of reactive oxygen species (ROS) and the loss of tight junction proteins such as Claudin 5, ZO-1, and inflammatory signaling in in vitro brain endothelial cells (bEnd.3 cells) under Abeta toxicity. Our results showed that Acrp30 (a globular form of adiponectin) reduces the expression of proinflammatory cytokines and the expression of RAGE as Abeta transporters into brain. Moreover, we found that Acrp 30 attenuated the apoptosis and the tight junction disruption through AdipoR1-mediated NF-kappaB pathway in Abeta-exposed bEnd.3 cells. Thus, we suggest that adiponectin is an attractive therapeutic target for treating BBB breakdown in AD brain. PMID- 29022895 TI - Impairment of PTX3 expression in osteoblasts: a key element for osteoporosis. AB - Pentraxin 3 (PTX3) is a multifunctional glycoprotein regulating inflammatory response, cell proliferation and migration and deposition and remodelling of the extracellular matrix by a variety of cells. In this study, we investigated the possible role of PTX3 in bone homeostasis. To this end, we compared the expression and function of PTX3 in human osteoblasts of osteoporotic, osteoarthritic patients and young subjects not affected by bone diseases. Immunohistochemical analysis performed on bone head biopsies showed a close association between bone health and the number of osteoblasts expressing PTX3. Noteworthy, the proportion of PTX3-positive osteoblasts resulted to be significantly lower in osteoporotic patients compared with both young patients and osteoarthritic patients of the same age. Ex vivo culture of osteoblasts isolated from the three groups of patients confirmed in vivo observation. Specifically, we observed rare runt-related transcription factor 2 (RUNX2) immunopositive osteoblasts expressing PTX3 in cell cultures derived from osteoporotic patients and western blotting analysis showed 80% reduction of PTX3 in the corresponding culture extracts compared with young and osteoarthritic patients. The treatment of human osteoblast primary cultures derived from young patients with anti-PTX3 antibody dramatically affected osteoblast behaviour. Indeed, they lost the morphological and molecular features typical of mature osteoblasts, acquiring fibroblast-like shape and highly decreasing nuclear factor kappa-B ligand (RANKL) and RUNX2 expression. Also, the inhibition of PTX3 negatively affected osteoblast proliferation and their ability to form cell clusters and microhydroxyapatite crystals. Altogether, these results suggest a central role of PTX3 in bone homeostasis showing its involvement in osteoblast proliferation, differentiation and function. PMID- 29022896 TI - MicroRNA-378 protects against intestinal ischemia/reperfusion injury via a mechanism involving the inhibition of intestinal mucosal cell apoptosis. AB - Intestinal ischemia/reperfusion (I/R) injury remains a major clinical event and contributes to high morbidity and mortality rates, but the underlying mechanisms remain elusive. Recent studies have demonstrated that microRNAs (miRNAs) have important roles in organ I/R injury, but the changes and potential roles of miRNAs in intestinal I/R-induced intestinal injury are unclear. This study was designed to analyze the miRNA expression profiles in intestinal mucosa after I/R injury and to explore the role of target miRNA during this process. Using miRNA microarray analysis, we found changes of 19 miRNAs from the expression profile of miRNAs in a mouse model of intestinal I/R and further verified them by RT-qPCR. Here, we report that miR-378 is one of the markedly decreased miRNAs and found the putative target mRNA that is linked to cell death after applying the TargetScan, miRanda, CLIP-Seq and miRDB prediction algorithms. Our results show that the overexpression of miR-378 significantly ameliorated intestinal tissue damage in wild-type and transgenic mice and oxygen glucose deprivation/reperfusion-challenged IEC-6 cell injury. Moreover, miR-378 overexpression reduced intestinal epithelial cell apoptosis in both in vivo and in vitro ischemic models and attenuated cleaved caspase-3 expression. Collectively, our results revealed that the suppression of caspase-3 activation by miRNA-378 overexpression may be involved in the protective effects of intestinal ischemic damage. MiRNA-378 may serve as a key regulator and therapeutic target in intestinal I/R injury. PMID- 29022897 TI - Cooperation of Rel family members in regulating Abeta1-40-mediated pro inflammatory cytokine secretion by retinal pigment epithelial cells. AB - Amyloid-beta (Abeta) is a hallmark component of age-related macular degeneration (AMD), which induces secretion of pro-inflammatory cytokines from retinal pigment epithelium (RPE). Previous studies have shown that p50/RelA (p65), a member of NF kappaB family, is an essential pro-inflammatory transcription factor responding to Abeta1-40 stimulation, but few focused on the other two Rel transcription factor members - RelB and c-Rel - and their role in Abeta1-40-mediated inflammation. It was reported that RelA, RelB and c-Rel are also implicated in various NF-kappaB-mediated inflammatory diseases. Therefore, we infer that Abeta1 40-mediated inflammation targets not only the classical inflammation regulator, RelA, but also RelB and c-Rel. In this study, we demonstrate that intravitreally injected Abeta1-40 mice develop AMD-like pathologic changes, coupled with Rel protein (RelA, RelB and c-Rel) synthesis and nuclear translocation. To focus on the interaction mechanism of Rel proteins, we found that RelB and c-Rel formed a heterodimer with RelA in mice model. We also found that c-Rel silencing decreased the levels of Abeta1-40-dependent RelA expression, indicating that RelB and c-Rel may interact with RelA as coactivator and c-Rel is required to activate the expression of RelA. Moreover, Rel protein silencing decreased the expression of distinct pro-inflammatory cytokines. Together, we demonstrate that besides RelA, RelB and c-Rel can also be activated by Abeta1-40, all of which mediate pro inflammatory cytokine transcription and RPE damage. Our findings imply that RPE mediated inflammation under the stimulation of Abeta1-40 is multi-targeted and RelA, RelB and c-Rel proteins may be the new targets of anti-inflammatory agents. PMID- 29022898 TI - Superoxide drives progression of Parkin/PINK1-dependent mitophagy following translocation of Parkin to mitochondria. AB - Reactive oxygen species (ROS) and mitophagy are profoundly implicated in the pathogenesis of neurodegenerative diseases, such as Parkinson's disease (PD). Several studies have suggested that ROS are not involved in mitochondrial translocation of Parkin which primes mitochondria for autophagic elimination. However, whether ROS play a role in the execution of mitophagy is unknown. In the present study, we show that carbonyl cyanide m-chlorophenylhydrazone (CCCP) treatment induced both mitochondrial depolarization and generation of ROS that were needed for the mitophagy process. Cells failed to proceed to complete mitophagy if CCCP treatment was discontinued even after recruitment of Parkin and autophagy machinery to mitochondria. Notably, treatment of pro-oxidant was able to replace CCCP treatment to take mitophagy forward, while it alone was insufficient to induce translocation of Parkin to mitochondria or autophagic clearance of mitochondria. In addition, an SOD mimetic that attenuated the superoxide level suppressed mitophagy, while an SOD inhibitor accumulated cellular superoxide and promoted mitophagy. Furthermore, blockage of the p38 signaling pathway inhibited mitophagy induced by ROS, suggesting that it may contribute to the activation of ROS-mediated mitophagy. Together, our study sheds light on the link between ROS and mitophagy at a molecular level, and suggests the therapeutic potential of regulating mitophagy through the superoxide-p38 mitophagy axis. PMID- 29022899 TI - Transplanted human p75-positive stem Leydig cells replace disrupted Leydig cells for testosterone production. AB - Previous studies have demonstrated that rodent stem Leydig cell (SLC) transplantation can partially restore testosterone production in Leydig cell (LC) disrupted or senescent animal models, which provides a promising approach for the treatment of hypogonadism. Here, we isolated human SLCs prospectively and explored the potential therapeutic benefits of human SLC transplantation for hypogonadism treatment. In adult human testes, p75 neurotrophin receptor positive (p75+) cells expressed the known SLC marker nestin, but not the LC lineage marker hydroxysteroid dehydrogenase-3beta (HSD3beta). The p75+ cells which were sorted by flow cytometry from human adult testes could expand in vitro and exhibited clonogenic self-renewal capacity. The p75+ cells had multi-lineage differentiation potential into multiple mesodermal cell lineages and testosterone producing LCs in vitro. After transplantation into the testes of ethane dimethane sulfonate (EDS)-treated LC-disrupted rat models, the p75+ cells differentiated into LCs in vivo and secreted testosterone in a physiological pattern. Moreover, p75+ cell transplantation accelerated the recovery of serum testosterone levels, spermatogenesis and reproductive organ weights. Taken together, we reported a method for the identification and isolation of human SLCs on the basis of p75 expression, and demonstrated that transplanted human p75+ SLCs could replace disrupted LCs for testosterone production. These findings provide the groundwork for further clinical application of human SLCs for hypogonadism. PMID- 29022900 TI - Increased 15-lipoxygenase-1 expression in chondrocytes contributes to the pathogenesis of osteoarthritis. AB - 15-Lipoxygenase-1 (15-LO-1) is involved in many pathological processes. The purpose of this study was to determine the potential role of 15-LO-1 in osteoarthritis (OA). The levels of 15-LO-1 expression were measured by western blotting and quantitative real-time PCR in articular cartilage from the OA rat models and OA patients. To further investigate the effects of 15-LO-1 on chondrocyte functions, such as extracellular matrix (ECM) secretion, the release of matrix-degrading enzymes, the production of reactive oxygen species (ROS), cell proliferation and apoptosis, we decreased or increased 15-LO-1 expression in chondrocytes by means of transfecting with siRNA targeting 15-LO-1 and plasmid encoding 15-LO-1, respectively. The results showed that 15-LO-1 expression was obviously increased in articular cartilage from OA rats and OA patients. It was also found that many factor-related OA, such as mechanical loading, ROS, SNP and inflammatory factor, significantly promoted 15-LO-1 expression and activity in chondrocytes. Silencing 15-LO-1 was able to markedly alleviate mechanical loading induced cartilage ECM secretion, cartilage-degrading enzyme secretion and ROS production. Overexpression of 15-LO-1 could inhibit chondrocyte proliferation and induce chondrocyte apoptosis. In addition, reduction of 15-LO-1 in vivo significantly alleviated OA. Taken together, these results indicate that 15-LO-1 has an important role in the disease progression of OA. Thus 15-LO-1 may be a good target for developing drugs in the treatment of OA. PMID- 29022901 TI - BCR-ABL1-induced downregulation of WASP in chronic myeloid leukemia involves epigenetic modification and contributes to malignancy. AB - Chronic myeloid leukemia (CML) is a myeloproliferative disease caused by the BCR ABL1 tyrosine kinase (TK). The development of TK inhibitors (TKIs) revolutionized the treatment of CML patients. However, TKIs are not effective to those at advanced phases when amplified BCR-ABL1 levels and increased genomic instability lead to secondary oncogenic modifications. Wiskott-Aldrich syndrome protein (WASP) is an important regulator of signaling transduction in hematopoietic cells and was shown to be an endogenous inhibitor of the c-ABL TK. Here, we show that the expression of WASP decreases with the progression of CML, inversely correlates with the expression of BCR-ABL1 and is particularly low in blast crisis. Enforced expression of BCR-ABL1 negatively regulates the expression of WASP. Decreased expression of WASP is partially due to DNA methylation of the proximal WASP promoter. Importantly, lower levels of WASP in CML advanced phase patients correlate with poorer overall survival (OS) and is associated with TKI response. Interestingly, enforced expression of WASP in BCR-ABL1-positive K562 cells increases the susceptibility to apoptosis induced by TRAIL or chemotherapeutic drugs and negatively modulates BCR-ABL1-induced tumorigenesis in vitro and in vivo. Taken together, our data reveal a novel molecular mechanism that operates in BCR-ABL1-induced tumorigenesis that can be used to develop new strategies to help TKI-resistant, CML patients in blast crisis (BC). PMID- 29022902 TI - Differential regulation of spermatogenic process by Lkb1 isoforms in mouse testis. AB - Liver serine/threonine kinase B1 (LKB1) is a tumor suppressor associated with the pathogenesis of Peutz-Jeghers syndrome. Affected males are at increased risk of developing Sertoli cell tumors and display defective spermatogenesis. Male mice lacking the short isoform (Lkb1S) of Lkb1 were sterile and exhibited abnormal spermiogenesis. In addition to the short isoform, the long isoform of Lkb1 (Lkb1L) is also expressed in testis; however, the requirement of the long isoform for fertility and the functional difference between the isoforms remain unknown. Herein, different from the spermiation failure reported in Lkb1S knockout mice, conditional deletion (cKO) of both isoforms of Lkb1 in germ cells resulted in male sterility stemming from defects in acrosome formation, as well as nuclear elongation and condensation during spermatid differentiation. Additionally, cKO mice showed a progressive germ cell loss that was never reported in mice with Lkb1S deletion. Further experiments revealed that the defect resulted from the failure of spermatogonial stem/progenitor cells (SPCs) maintenance. Although increased mTORC1 activity in postnatal cKO testes was consistent with a tendency toward germline stem cell differentiation, in vivo inhibition of the pathway by rapamycin treatment failed to rescue the phenotype. Concurrently, we detected a significant reduction of mitochondrial activity in Lkb1deficient SPCs. The results suggest that the regulation of LKB1 on SPCs' maintenance is associated with mitochondrial functions but not through the mTOR signaling pathway. In summary, our study supports different roles of Lkb1 isoforms in spermatogenesis with Lkb1L directing SPCs maintenance, and Lkb1L and Lkb1S coordinately regulating spermatid differentiation. PMID- 29022905 TI - c-Abl-mediated Drp1 phosphorylation promotes oxidative stress-induced mitochondrial fragmentation and neuronal cell death. AB - Oxidative stress-induced mitochondrial dysfunction and neuronal cell death have important roles in the development of neurodegenerative diseases. Dynamin related protein 1 (Drp1) is a critical factor in regulating mitochondrial dynamics. A variety of posttranslational modifications of Drp1 have been reported, including phosphorylation, ubiquitination, sumoylation and S-nitrosylation. In this study, we found that c-Abl phosphorylated Drp1 at tyrosine 266, 368 and 449 in vitro and in vivo, which augmented the GTPase activity of Drp1 and promoted Drp1-mediated mitochondrial fragmentation. Consistently, c-Abl-mediated phosphorylation is important for GTPase activity of Drp1 and mitochondrial fragmentation. Furthermore, we found that Drp1 phosphorylation mediated by c-Abl is required for oxidative stress-induced cell death in primary cortical neurons. Taken together, our findings reveal that c-Abl-Drp1 signaling pathway regulates oxidative stress induced mitochondrial fragmentation and cell death, which might be a potential target for the treatment of neurodegenerative diseases. PMID- 29022904 TI - Zika virus infection dysregulates human neural stem cell growth and inhibits differentiation into neuroprogenitor cells. AB - The current outbreak of Zika virus-associated diseases in South America and its threat to spread to other parts of the world has emerged as a global health emergency. A strong link between Zika virus and microcephaly exists, and the potential mechanisms associated with microcephaly are under intense investigation. In this study, we evaluated the effect of Zika virus infection of Asian and African lineages (PRVABC59 and MR766) in human neural stem cells (hNSCs). These two Zika virus strains displayed distinct infection pattern and growth rates in hNSCs. Zika virus MR766 strain increased serine 139 phosphorylation of histone H2AX (gammaH2AX), a known early cellular response proteins to DNA damage. On the other hand, PRVABC59 strain upregulated serine 15 phosphorylation of p53, p21 and PUMA expression. MR766-infected cells displayed poly (ADP-ribose) polymerase (PARP) and caspase-3 cleavage. Interestingly, infection of hNSCs by both strains of Zika virus for 24 h, followed by incubation in astrocyte differentiation medium, induced rounding and cell death. However, astrocytes generated from hNSCs by incubation in differentiation medium when infected with Zika virus displayed minimal cytopathic effect at an early time point. Infected hNSCs incubated in astrocyte differentiating medium displayed PARP cleavage within 24-36 h. Together, these results showed that two distinct strains of Zika virus potentiate hNSC growth inhibition by different mechanisms, but both viruses strongly induce death in early differentiating neuroprogenitor cells even at a very low multiplicity of infection. Our observations demonstrate further mechanistic insights for impaired neuronal homeostasis during active Zika virus infection. PMID- 29022903 TI - Alternative mechanisms of miR-34a regulation in cancer. AB - MicroRNA miR-34a is recognized as a master regulator of tumor suppression. The strategy of miR-34a replacement has been investigated in clinical trials as the first attempt of miRNA application in cancer treatment. However, emerging outcomes promote the re-evaluation of existing knowledge and urge the need for better understanding the complex biological role of miR-34a. The targets of miR 34a encompass numerous regulators of cancer cell proliferation, survival and resistance to therapy. MiR-34a expression is transcriptionally controlled by p53, a crucial tumor suppressor pathway, often disrupted in cancer. Moreover, miR-34a abundance is fine-tuned by context-dependent feedback loops. The function and effects of exogenously delivered or re-expressed miR-34a on the background of defective p53 therefore remain prominent issues in miR-34a based therapy. In this work, we review p53-independent mechanisms regulating the expression of miR-34a. Aside from molecules directly interacting with MIR34A promoter, processes affecting epigenetic regulation and miRNA maturation are discussed. Multiple mechanisms operate in the context of cancer-associated phenomena, such as aberrant oncogene signaling, EMT or inflammation. Since p53-dependent tumor suppressive mechanisms are disturbed in a substantial proportion of malignancies, we summarize the effects of miR-34a modulation in cell and animal models in the clinically relevant context of disrupted or insufficient p53 function. PMID- 29022906 TI - Increasing AR by HIF-2alpha inhibitor (PT-2385) overcomes the side-effects of sorafenib by suppressing hepatocellular carcinoma invasion via alteration of pSTAT3, pAKT and pERK signals. AB - Although sorafenib is currently used as a standard treatment for advanced hepatocellular carcinoma, low response rate, transient and limited efficacy, primary and acquired resistance and negative side-effects gain increasing attentions, suggesting the need for better efficacious combination therapy. Here, we demonstrated that the sorafenib-induced or hypoxia-induced hypoxia inducible factor (HIF)-2alpha could bind to an hypoxia responsive element within 500 bp region of androgen receptor (AR) promoter and thus transcriptionally suppress AR. Importantly, In vitro and In vivo studies suggested a specific and potent HIF 2alpha inhibitor, PT-2385, could significantly enhance sorafenib efficacy by suppressing HIF-2alpha, increasing AR and suppressing downstream pSTAT3/pAKT/pERK pathways. Clinical samples further confirmed the role of HIF-2alpha and AR. It is promising that PT-2385 could alleviate the undesirable side-effects of sorafenib treatment by sorafenib-PT-2385 combination therapy, which may shed light for late stage HCC patients. PMID- 29022907 TI - p38alpha MAPK antagonizing JNK to control the hepatic fat accumulation in pediatric patients onset intestinal failure. AB - The p38alpha mitogen-activated protein kinase (MAPK) has been related to gluconeogenesis and lipid metabolism. However, the roles and related mechanisms of p38alpha MAPK in intestinal failure (IF)-associated liver steatosis remained poor understood. Here, our experimental evidence suggested that p38alpha MAPK significantly suppressed the fat accumulation in livers of IF patients mainly through two mechanisms. On the one hand, p38alpha MAPK increased hepatic bile acid (BA) synthesis by upregulating the expression of the rate-limiting enzyme cholesterol 7-alpha-hydroxylase (CYP7A1) and peroxisome proliferator-activated receptor gamma coactivator-1alpha (PGC-1alpha), which in turn activated the transcription of the CYP7A1. On the other hand, p38alpha MAPK promoted fatty acid (FA) beta-oxidation via upregulating peroxisome proliferator-activated receptor alpha (PPARalpha) and its transcriptional target genes carnitine palmitoyltransferase 1A (CPT1A) and peroxisomal acyl-coenzyme aoxidase 1 (ACOX1). Dual luciferase assays indicated that p38alpha MAPK increased the transcription of PPARalpha, PGC-1alpha and CYP7A1 by upregulating their promoters' activities. In addition, in vitro and in vivo assays indicated p38alpha MAPK negatively regulates the hepatic steatosis by controlling JNK activation. In conculsion, our findings demonstrate that hepatic p38alpha MAPK functions as a negative regulator of liver steatosis in maintaining BA synthesis and FAO by antagonizing the c-Jun N-terminal kinase (JNK). PMID- 29022908 TI - miR-143 and miR-145 inhibit gastric cancer cell migration and metastasis by suppressing MYO6. AB - Metastasis is a major clinical obstacle responsible for the high mortality and poor prognosis of gastric cancer (GC). MicroRNAs (miRNAs) are critical mediators of metastasis that act by modulating their target genes. In this study, we found that miR-143 and miR-145 act via a common target gene, MYO6, to regulate the epithelial-mesenchymal transition (EMT) and inhibit metastasis. We determined that miR-143 and miR-145 were downregulated in GC, and the ectopic expression of miR-143 and/or miR-145 inhibited GC cell migration and metastasis. Furthermore, MYO6 was identified as a direct common target of miR-143 and miR-145 and was elevated in GC. Silencing of MYO6 resulted in a metastasis-suppressive activity similar to that of miR-143 and miR-145, while restoring MYO6 attenuated the anti metastatic or anti-EMT effects caused by miR-143 and miR-145. Clinically, an inverse correlation was observed between miR-143/145 levels and MYO6 levels in GC tissues, and either miR-143/145 downregulation or MYO6 upregulation was associated with more malignant phenotypes in patients with GC. In conclusion, miR 143 and miR-145 suppress GC cell migration and metastasis by inhibiting MYO6 expression and the EMT, which provides a novel mechanism and promising therapeutic target for the treatment of GC metastasis. PMID- 29022909 TI - miR-216a inhibits osteosarcoma cell proliferation, invasion and metastasis by targeting CDK14. AB - Osteosarcoma (OS) has emerged as the most common primary musculoskeletal malignant tumour affecting children and young adults. Cyclin-dependent kinases (CDKs) are closely associated with gene regulation in tumour biology. Accumulating evidence indicates that the aberrant function of CDK14 is involved in a broad spectrum of diseases and is associated with clinical outcomes. MicroRNAs (miRNAs) are crucial epigenetic regulators in the development of OS. However, the essential role of CDK14 and the molecular mechanisms by which miRNAs regulate CDK14 in the oncogenesis and progression of OS have not been fully elucidated. Here we found that CDK14 expression was closely associated with poor prognosis and overall survival of OS patients. Using dual-luciferase reporter assays, we also found that miR-216a inhibits CDK14 expression by binding to the 3'-untranslated region of CDK14. Overexpression of miR-216a significantly suppressed cell proliferation, migration and invasion in vivo and in vitro by inhibiting CDK14 production. Overexpression of CDK14 in the miR-216a-transfected OS cells effectively rescued the suppression of cell proliferation, migration and invasion caused by miR-216a. In addition, Kaplan-Meier analysis indicated that miR-216a expression predicted favourable clinical outcomes for OS patients. Moreover, miR-216a expression was downregulated in OS patients and was negatively associated with CDK14 expression. Overall, these data highlight the role of the miR-216a/CDK14 axis as a novel pleiotropic modulator and demonstrate the associated molecular mechanisms, thus suggesting the intriguing possibility that miR-216a activation and CDK14 inhibition may be novel and attractive therapeutic strategies for treating OS patients. PMID- 29022910 TI - Long non-coding RNA Myd88 promotes growth and metastasis in hepatocellular carcinoma via regulating Myd88 expression through H3K27 modification. AB - Enhanced Myd88 expression has been found in various parenchymal tumors especially in hepatocellular carcinoma with little mechanism of its upregulation known. A lot of long non-coding RNAs are reported to regulate the protein-coding genes which have location association through various mechanisms. In our study we confirmed a new long non-coding RNA Myd88 aberrant upregulated in HCC located upstream of Myd88 and verified a positive regulation relationship between them indicating that Lnc-Myd88 might participate in the enhanced expression of Myd88 in HCC. The gain- and loss-of-function analysis revealed that Lnc-Myd88 could promote the proliferation and metastasis of HCC both in vitro and in vivo. In addition, ChIP assays demonstrated that Lnc-Myd88 might increase Myd88 expression through enhancing H3K27Ac in the promoter of Myd88 gene, thus resulting in the activation of both NF-kappaB and PI3K/AKT signal pathways. In conclusion, we proposed that Lnc-Myd88 might serve as a novel diagnosis and therapeutic target for HCC. PMID- 29022911 TI - The level of caveolin-1 expression determines response to TGF-beta as a tumour suppressor in hepatocellular carcinoma cells. AB - Hepatocellular carcinoma (HCC) is a heterogeneous tumour associated with poor prognostic outcome. Caveolin-1 (CAV1), a membrane protein involved in the formation of caveolae, is frequently overexpressed in HCC. Transforming growth factor-beta (TGF-beta) is a pleiotropic cytokine having a dual role in hepatocarcinogenesis: inducer of apoptosis at early phases, but pro-tumourigenic once cells acquire mechanisms to overcome its suppressor effects. Apoptosis induced by TGF-beta is mediated by upregulation of the NADPH oxidase NOX4, but counteracted by transactivation of the epidermal growth factor receptor (EGFR) pathway. Previous data suggested that CAV1 is required for the anti-apoptotic signals triggered by TGF-beta in hepatocytes. Whether this mechanism is relevant in hepatocarcinogenesis has not been explored yet. Here we analysed the TGF-beta response in HCC cell lines that express different levels of CAV1. Accordingly, stable CAV1 knockdown or overexpressing cell lines were generated. We demonstrate that CAV1 is protecting HCC cells from TGF-beta-induced apoptosis, which attenuates its suppressive effect on clonogenic growth and increases its effects on cell migration. Downregulation of CAV1 in HLE cells promotes TGF-beta-mediated induction of the pro-apoptotic BMF, which correlates with upregulation of NOX4, whereas CAV1 overexpression in Huh7 cells shows the opposite effect. CAV1 silenced HLE cells show attenuation in TGF-beta-induced EGFR transactivation and activation of the PI3K/AKT pathway. On the contrary, Huh7 cells, which do not respond to TGF-beta activating the EGFR pathway, acquire the capacity to do so when CAV1 is overexpressed. Analyses in samples from HCC patients revealed that tumour tissues presented higher expression levels of CAV1 compared with surrounding non-tumoural areas. Furthermore, a significant positive correlation among the expression of CAV1 and TGFB1 was observed. We conclude that CAV1 has an essential role in switching the response to TGF-beta from cytostatic to tumourigenic, which could have clinical meaning in patient stratification. PMID- 29022912 TI - Tenomodulin is essential for prevention of adipocyte accumulation and fibrovascular scar formation during early tendon healing. AB - Tenomodulin (Tnmd) is the best-known mature marker for tendon and ligament lineage cells. It is important for tendon maturation, running performance and has key implications for the resident tendon stem/progenitor cells (TSPCs). However, its exact functions during the tendon repair process still remain elusive. Here, we established an Achilles tendon injury model in a Tnmd knockout (Tnmd-/-) mouse line. Detailed analyses showed not only a very different scar organization with a clearly reduced cell proliferation and expression of certain tendon-related genes, but also increased cell apoptosis, adipocyte and blood vessel accumulation in the early phase of tendon healing compared with their wild-type (WT) littermates. In addition, Tnmd-/- tendon scar tissue contained augmented matrix deposition of biglycan, cartilage oligomeric matrix protein (Comp) and fibronectin, altered macrophage profile and reduced numbers of CD146-positive cells. In vitro analysis revealed that Tnmd-/- TSPCs exhibited significantly reduced migration and proliferation potential compared with that of WT TSPCs. Furthermore, Tnmd-/- TSPCs had accelerated adipogenic differentiation accompanied with significantly increased peroxisome proliferator-activated receptor gamma (Ppargamma) and lipoprotein lipase (Lpl) mRNA levels. Thus, our results demonstrate that Tnmd is required for prevention of adipocyte accumulation and fibrovascular scar formation during early tendon healing. PMID- 29022914 TI - Emergence of aspirin as a promising chemopreventive and chemotherapeutic agent for liver cancer. PMID- 29022913 TI - MBD2 upregulates miR-301a-5p to induce kidney cell apoptosis during vancomycin induced AKI. AB - Despite DNA methylation occurred in acute kidney injury (AKI), how it influenced progression of AKI remains unclear. Methyl-CpG-binding domain protein 2 (MBD2), a protein readers of methylation, was used to analyze the impact of DNA methylation on vancomycin (VAN)-induced AKI. Here, in cultured human kidney tubular epithelial cells (HK-2), we show that knockdown of MBD2 by siRNA attenuated VAN induced apoptosis, caspase activity, and the expression of BAX and cleaved caspase 3. Interestingly, knockdown of MBD2 by siRNA was associated with the suppression of miR-301a-5p. Mechanistic studies confirmed MBD2 binds to these methylated CpG elements of miR-301a-5p promoter, and then activates miR-301a-5p promoter by suppressing methylation. Furthermore, anti-miR-301a-5p significantly blocked VAN-induced apoptosis and caspase activity in HK-2 cells, which was accompanied by downregulation of p53, and upregulation of MITF, HDGF and MDM-4 together. The latter genes were further identified as target genes of miR-301a 5p, and silencing of MDM-4 promoted p53 accumulation. In vivo, mice with MBD2 knockout (MBD2-KO) were counteracted to VAN-induced AKI, indicated by the analysis of renal function, histology, apoptosis and inflammation. MBD2-KO also significantly suppressed the expression of miR-301a-5p, p53, BAX and cleaved caspase 3, and restored the expression of MDM-4, MITF and HDGF. Finally, in vivo inhibition of miR-301a-5p also ameliorated VAN-induced AKI. Together, these results show the novel MBD2/miR-301a-5p/MITF, HDGF and MDM-4/p53 pathway in VAN induced AKI. PMID- 29022915 TI - Wild-type and mutant p53 differentially modulate miR-124/iASPP feedback following pohotodynamic therapy in human colon cancer cell line. AB - Colorectal cancer (CRC) is a most common digestive system malignant tumor. p53 mutation has essential role in cancers and is frequently observed in CRC and presents a huge challenge. p53 mutation has been reported to attenuate the inhibitory effect of photofrin-based photodynamic therapy (PDT). p53 mutation induced gain of function brings up the dysfunction of carcinogenic factors, including miRNAs. Our research found that PDT suppressed CRC cell viability, reduced the tumor size and prolonged the survival time, all of which could be attenuated by p53 mutation or deletion. After p53 mutation or deletion, several miRNA expression levels were downregulated, among which miR-124 was the most strongly downregulated, whereas iASPP expression was upregulated. p53 binds to the promoter of miR-124 to promote its expression and then inhibited iASPP expression, so as to amplify the inhibitory effect of PDT on wild-type p53 cells. In p53-mutant or -deleted cells, this binding no longer worked to promote miR-124 expression, and iASPP expression increased, finally resulted in promoted CRC cell viability upon PDT. The interactive modulation among miR and iASPP in p53-mutant or -deleted cells may serve as a crucial pathway, which mediates therapy resistance when p53 is mutated or deleted, in the process of PDT treatment of CRC. PMID- 29022916 TI - Molecular motion regulates the activity of the Mitochondrial Serine Protease HtrA2. AB - HtrA2 (high-temperature requirement 2) is a human mitochondrial protease that has a role in apoptosis and Parkinson's disease. The structure of HtrA2 with an intact catalytic triad was determined, revealing a conformational change in the active site loops, involving mainly the regulatory LD loop, which resulted in burial of the catalytic serine relative to the previously reported structure of the proteolytically inactive mutant. Mutations in the loops surrounding the active site that significantly restricted their mobility, reduced proteolytic activity both in vitro and in cells, suggesting that regulation of HtrA2 activity cannot be explained by a simple transition to an activated conformational state with enhanced active site accessibility. Manipulation of solvent viscosity highlighted an unusual bi-phasic behavior of the enzymatic activity, which together with MD calculations supports the importance of motion in the regulation of the activity of HtrA2. HtrA2 is an unusually thermostable enzyme (TM=97.3 degrees C), a trait often associated with structural rigidity, not dynamic motion. We suggest that this thermostability functions to provide a stable scaffold for the observed loop motions, allowing them a relatively free conformational search within a rather restricted volume. PMID- 29022917 TI - Trehalose protects against cadmium-induced cytotoxicity in primary rat proximal tubular cells via inhibiting apoptosis and restoring autophagic flux. AB - Autophagy has an important renoprotective function and we recently found that autophagy inhibition is involved in cadmium (Cd)-induced nephrotoxicity. Here, we aimed to investigate the protective effect of trehalose (Tre), a novel autophagy activator, against Cd-induced cytotoxicity in primary rat proximal tubular (rPT) cells. First, data showed that Tre treatment significantly decreased Cd-induced apoptotic cell death of rPT cells via inhibiting caspase-dependent apoptotic pathway, evidenced by morphological analysis, flow cytometric and immunoblot assays. Also, administration with Tre protected rPT cells against Cd-induced lipid peroxidation. Inhibition of autophagic flux in Cd-exposed rPT cells was markedly restored by Tre administration, demonstrated by immunoblot analysis of autophagy marker proteins and GFP and RFP tandemly tagged LC3 method. Resultantly, Cd-induced autophagosome accumulation was obviously alleviated by Tre treatment. Meanwhile, blockage of autophagosome-lysosome fusion by Cd exposure was noticeably restored by Tre, which promoted the autophagic degradation in Cd-exposed rPT cells. Moreover, Tre treatment markedly recovered Cd-induced lysosomal alkalinization and impairment of lysosomal degradation capacity in rPT cells, demonstrating that Tre has the ability to restore Cd impaired lysosomal function. Collectively, these findings demonstrate that Tre treatment alleviates Cd-induced cytotoxicity in rPT cells by inhibiting apoptosis and restoring autophagic flux. PMID- 29022918 TI - Ligand-dependent EphA7 signaling inhibits prostate tumor growth and progression. AB - The downregulation of receptor tyrosine kinase EphA7 is frequent in epithelial cancers and linked to tumor progression. However, the detailed mechanism of EphA7 mediated prostate tumor progression remains elusive. To test the role of EphA7 receptor in prostate cancer (PCa) progression directly, we generated EphA7 receptor variants that were either lacking the cytoplasmic domain or carrying a point mutation that inhibits its phosphorylation by site-directed mutagenesis. Overexpression of wild-type (WT) EphA7 in PCa cells resulted in decreased tumor volume and increased tumor apoptosis in primary tumors. In addition, ectopic expression of WT EphA7 both can delay PCa cell proliferation and could inhibit PCa cell migration and invasion. This protein can also induce PCa cell apoptosis that correlated with increasing the protein expression levels of Bax, elevating the caspase-3 activities, reducing the protein expression levels of Bcl-2 and facilitating the dephosphorylation of Akt, which is further increased by the stimulation of ephrinA5-Fc. However, expression of these EphA7 mutants in PCa cells has no effect in vivo and in vitro. The expression of EphA7 and ephrinA5 was significantly decreased in PCa specimens compared with BPH tissues or paired normal tissues. Moreover, the phosphorylation of EphA7 was positively related with ephrinA5 expression in human prostate tissues. In sum, receptor phosphorylation of EphA7, at least in part, suppress PCa tumor malignancy through targeting PI3K/Akt signaling pathways. PMID- 29022920 TI - The lncRNA TUG1 modulates proliferation in trophoblast cells via epigenetic suppression of RND3. AB - Due to limited treatment options, pre-eclampsia (PE) is associated with fetal perinatal and maternal morbidity and mortality. During the causes of PE, failure of uterine spiral artery remodeling which might be related to functioning abnormally of trophoblast cells, result in the occurrence and progression of PE. Recently, abnormal expression of long non-coding RNAs (lncRNAs), as imperative regulators involved in human diseases progression (included PE), which has been indicated by increasing evidence. In this research, we found that TUG1, a lncRNA, was markedly reduced in placental samples from patients with PE. Loss-function assays indicated that knockdown TUG1 significantly affected cell proliferation, apoptosis, migration and network formation in vitro. RNA-seq revealed that TUG1 could affect abundant genes, and then explore the function and regulatory mechanism of TUG1 in trophoblast cells. Furthermore, RNA immunoprecipitation and chromatin immunoprecipitation assays validated that TUG1 can epigenetically inhibit the level of RND3 through binding to EZH2, thus promoting PE development. Therefore, via illuminating the TUG1 mechanisms underlying PE development and progression, our findings might furnish a prospective therapeutic strategy for PE intervention. PMID- 29022919 TI - DCZ3301, a novel cytotoxic agent, inhibits proliferation in diffuse large B-cell lymphoma via the STAT3 pathway. AB - Diffuse large B-cell lymphoma (DLBCL) is the most common type of lymphoma in adults, characterized by a rapidly increasing painless mass. A novel compound, DCZ3301, was synthesized that exerted direct cytotoxicity against DLBCL cell lines. The effects of DCZ3301 on DLBCL cells in vitro and in vivo and the associated mechanisms were investigated. DCZ3301 inhibited the viability of DLBCL cell lines, even in the presence of protumorigenesis cytokines. Additionally, the compound induced apoptosis and cell cycle arrest at the G2/M phase by reducing mitochondrial membrane potential. DCZ3301 exerted an antitumor effect through modulation of Akt, extracellular signal-regulated kinases 1/2 (ERK1/2) and janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) signaling pathways. Furthermore, DCZ3301 downregulates STAT3 phosphorylation by inhibiting Lck/Yes-related novel protein tyrosine kinase (Lyn) activation in DLBCL. A synergistic cytotoxic effect on DLBCL cells was observed upon combination of DCZ3301 with panobinostat. In vivo, intraperitoneal injection of xenograft mice with DCZ3301 resulted in reduced tumor volume. Our preliminary results collectively support the utility of the small-molecule inhibitor DCZ3301 as an effective novel therapeutic option for DLBCL that requires further clinical evaluation. PMID- 29022922 TI - RANKL-mediated harmonious dialogue between fetus and mother guarantees smooth gestation by inducing decidual M2 macrophage polarization. AB - Decidual macrophages (dMphi) contribute to maternal-fetal tolerance. However, the mechanism of dMphi differentiation during pregnancy is still largely unknown. Here, we report that receptor activator for nuclear factor-kappa B ligand (RANKL), secreted by human embryonic trophoblasts and maternal decidual stromal cells (DSCs), polarizes dMphi toward a M2 phenotype. This polarization is mediated through activation of Akt/signal transducer and activator of transcription 6 (STAT6) signaling, which is associated with the upregulation of histone H3 lysine-27 demethylase Jmjd3 and IRF4 in dMphi. Such differentiated dMphi can induce a Th2 bias that promotes maternal-fetal tolerance. Impaired expression of RANKL leads to dysfunction of dMphi in vivo and increased rates of fetal loss in mice. Transfer of RANK+Mphi reverses mouse fetal loss induced by Mphi depletion. Compared with normal pregnancy, there are abnormally low levels of RANKL/RANK in villi and decidua from miscarriage patients. These results suggest that RANKL is a pivotal regulator of maternal-fetal tolerance by licensing dMphi to ensure a successful pregnancy outcome. This observation provides a scientific basis on which a potential therapeutic strategy can be targeted to prevent pregnancy loss. PMID- 29022924 TI - Listeriosis in pregnancy: under-diagnosis despite over-treatment. AB - OBJECTIVE: To compare the symptomatology of pregnant women with suspected listeriosis to culture confirmed listeriosis. STUDY DESIGN: All cases of suspected and culture confirmed pregnancy-associated listeriosis from a single center were retrospectively reviewed assessing demographics, clinical, laboratory and pathological findings, and maternal, fetal and neonatal outcomes. RESULTS: Listeriosis was identified in seven patients, none of whom belonged to the 117 women with suspected listeriosis. Women with confirmed infection were more likely to exhibit fever (P=0.01), flu-like symptoms (P=0.006), threatened preterm labor (P=0.05) and inflammatory markers (P=0.02), but less likely to exhibit gastrointestinal complaints (P=0.004) in comparison with suspected non-confirmed cases. Confirmed cases resulted in preterm delivery (n=5) and stillbirth (n=2). Neonatal complications included meningitis, respiratory disease and sepsis. Maternal outcomes were favorable. CONCLUSION: Although 'febrile gastroenteritis' is a poor predictor of listeriosis in pregnancy, fever, premature contractions and inflammatory markers are important risk indices prompting workup and adequate empiric treatment. PMID- 29022921 TI - Current progress in the derivation and therapeutic application of neural stem cells. AB - Neural stem cells (NSCs) have a unique role in neural regeneration. Cell therapy based on NSC transplantation is a promising tool for the treatment of nervous system diseases. However, there are still many issues and controversies associated with the derivation and therapeutic application of these cells. In this review, we summarize the different sources of NSCs and their derivation methods, including direct isolation from primary tissues, differentiation from pluripotent stem cells and transdifferentiation from somatic cells. We also review the current progress in NSC implantation for the treatment of various neural defects and injuries in animal models and clinical trials. Finally, we discuss potential optimization strategies for NSC derivation and propose urgent challenges to the clinical translation of NSC-based therapies in the near future. PMID- 29022923 TI - Gadd45a opens up the promoter regions of miR-295 facilitating pluripotency induction. AB - MicroRNAs (miRNAs) play crucial roles in the establishment of pluripotent state by controlling pluripotent network. However, the molecular mechanisms controlling miRNAs during somatic cell reprogramming remain obscure. In this study, we show Gadd45a (growth arrest and DNA-damage-inducible protein 45a) enhances reprogramming by activating miR-295. Furthermore, we show that Gadd45a binds the promoter regions of miR-295. Nuclease accessibility assay indicates that Gadd45a opens the promoter regions of miR-295. Levels of H3K9Ac and H3K27Ac on the promoter regions of miR-295 were also increased. In conclusion, our results indicate that Gadd45a relaxes the promoter regions of miR-295 and promotes the expression of miR-295 during reprogramming, implying a concise mechanism of Gadd45a and miR-290 cluster cooperation in cell-fate determination. PMID- 29022926 TI - Erratum: Transmembrane TNF-alpha Density, But Not Soluble TNF-alpha Level, is Associated with Primary Response to Infliximab in Inflammatory Bowel Disease. AB - This corrects the article DOI: 10.1038/ctg.2017.44. PMID- 29022925 TI - Anti-cytomegalovirus immunoglobulin M titer for congenital infection in first trimester pregnancy with primary infection: a multicenter prospective cohort study. AB - OBJECTIVE: We evaluated cytomegalovirus (CMV) immunoglobulin M (IgM) titer in pregnant women with primary infection as a predictive factor for congenital infection. STUDY DESIGN: Maternal CMV antibody screening during the first trimester was conducted prospectively at 16 centers in Japan between September 2013 and 2015. Women with confirmed maternal primary infection underwent testing for fetal congenital infection, and we investigated the positive predictive value of CMV IgM titer levels for congenital infection in women with a low IgG avidity. RESULTS: We identified 6 (8.6%) cases of congenital infection among 70 pregnant women with positive/borderline IgG, positive IgM and IgG avidity index ?35.0% and 11 (39.3%) among 28 women with IgG and/or IgM seroconversion. IgM titer level ?6.00 index showed the highest positive predictive value (17.1%). CONCLUSION: High titer of CMV IgM during the first trimester in pregnant women with primary infection is a risk factor for congenital infection. PMID- 29022927 TI - How the United States plans to trap its biggest stash of nuclear-weapons waste in glass. PMID- 29022928 TI - Climate meetings pose serious test in the Trump era. PMID- 29022929 TI - Navajo Nation reconsiders ban on genetic research. PMID- 29022930 TI - The ambitious effort to document California's changing deserts. PMID- 29022932 TI - A more personal view of human-gene regulation. PMID- 29022931 TI - The future of DNA sequencing. PMID- 29022933 TI - The rise and fall and rise again of 23andMe. PMID- 29022935 TI - ResearchGate lawsuit, walrus spat and a Second World War shipwreck. PMID- 29022934 TI - Marine snow falls heaviest at the Equator. PMID- 29022936 TI - Scientists plead with Brazilian government to restore funding. PMID- 29022938 TI - Build on the outer space treaty. PMID- 29022937 TI - Cryo-electron microscopy wins chemistry Nobel. PMID- 29022939 TI - Developing nations need more than just money. PMID- 29022940 TI - Gene-expression study raises thorny ethical issues. PMID- 29022941 TI - Genome-wide mapping of DNase I hypersensitive sites in rare cell populations using single-cell DNase sequencing. AB - Increased chromatin accessibility is a feature of cell-type-specific cis regulatory elements; therefore, mapping of DNase I hypersensitive sites (DHSs) enables the detection of active regulatory elements of transcription, including promoters, enhancers, insulators and locus-control regions. Single-cell DNase sequencing (scDNase-seq) is a method of detecting genome-wide DHSs when starting with either single cells or <1,000 cells from primary cell sources. This technique enables genome-wide mapping of hypersensitive sites in a wide range of cell populations that cannot be analyzed using conventional DNase I sequencing because of the requirement for millions of starting cells. Fresh cells, formaldehyde-cross-linked cells or cells recovered from formalin-fixed paraffin embedded (FFPE) tissue slides are suitable for scDNase-seq assays. To generate scDNase-seq libraries, cells are lysed and then digested with DNase I. Circular carrier plasmid DNA is included during subsequent DNA purification and library preparation steps to prevent loss of the small quantity of DHS DNA. Libraries are generated for high-throughput sequencing on the Illumina platform using standard methods. Preparation of scDNase-seq libraries requires only 2 d. The materials and molecular biology techniques described in this protocol should be accessible to any general molecular biology laboratory. Processing of high-throughput sequencing data requires basic bioinformatics skills and uses publicly available bioinformatics software. PMID- 29022942 TI - Facile synthesis of gold nanomaterials with unusual crystal structures. AB - Gold (Au) nanomaterials have attracted wide research attention, owing to their high chemical stability, promising catalytic properties, excellent biocompatibility, unique electronic structure and outstanding localized surface plasmon resonance (LSPR) absorption properties; all of which are closely related to their size and shape. Recently, crystal-phase-controlled synthesis of noble metal nanomaterials has emerged as a promising strategy to tune their physicochemical properties. This protocol describes the detailed experimental procedures for the crystal-phase-controlled syntheses of Au nanomaterials with unusual crystal structures under mild conditions. Briefly, pure hexagonal close packed (hcp) Au square sheets (AuSSs) with a thickness of ~2.4 nm are synthesized using a graphene-oxide-assisted method in which HAuCl4 is reduced by oleylamine in a mixture of hexane and ethanol. By using pure hexane as the solvent, well dispersed ultrathin hcp/face-centered cubic (fcc) Au nanowires with a diameter of ~1.6 nm on graphene oxide can be obtained. Meanwhile, hcp/fcc Au square-like plates with a side length of 200-400 nm are prepared via the secondary growth of Au on the hcp AuSSs. Remarkably, hexagonal (4H) Au nanoribbons with a thickness of 2.0-6.0 nm can be synthesized with a one-pot colloidal method in which HAuCl4 is reduced by oleylamine in a mixed solvent of hexane and 1,2-dichloropropane. It takes 17-37 h for the synthesis of these Au nanomaterials with unusual crystal structures. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) are used to characterize the resultant Au nanomaterials, which could have many promising applications, such as biosensing, near-IR photothermal therapy, catalysis and surface-enhanced Raman scattering (SERS). PMID- 29022948 TI - Retinoblastoma: An overview of modern management. AB - Retinoblastoma (RB) is an embryonic tumor originating from the retinal cells. RB is the most common intraocular cancer of childhood and accounts for 4% of all pediatric malignancies. PMID- 29022944 TI - Erratum: Strains, functions and dynamics in the expanded Human Microbiome Project. AB - This corrects the article DOI: 10.1038/nature23889. PMID- 29022943 TI - Simultaneous measurement of sleep and feeding in individual Drosophila. AB - Drosophila is widely used for the dissection of genetic and neuronal mechanisms of behavior. Recently, flies have emerged as a model for investigating the regulation of feeding and sleep. Although typically studied in isolation, increasing evidence points to a fundamental connection between these behaviors. Thus, a system for measuring sleep and feeding simultaneously in a single integrated system is important for interpreting behavioral shifts of either state. Here, we describe the construction and use of the Activity Recording Capillary Feeder or CAFE (ARC), a machine-vision (automated image tracking)-based system for the integrated measurement of sleep and feeding in individual Drosophila. Flies feed on liquid food from a microcapillary, and consumption is measured by tracking the liquid meniscus over time. Sleep measurements are obtained from positional tracking of individual animals, and arousal threshold can be determined by vibrational stimulus response. Using this system, a single computer and experimenter can track diverse behaviors from up to 60 individual flies in a single integrated system. The ARC is efficiently assembled with minimal training, and each experiment can be run for up to ~7 d, with a total setup and breakdown time of ~2 h. PMID- 29022949 TI - SHAPU: Forty years on Mystery Persists. AB - In 1975, our team encountered several cases of severe inflammatory eye disease presenting as a white pupil in a red eye with rapid loss of vision. The eyes became soft within a few days with shallow anterior chamber which we called "Malignant Hypotension" in view of the latter's sinister significance. Unilaterally, little or no pain, predominantly affecting children and difficulty in dilating the pupil and keeping it dilated were some of the other important features. Posterior segment was not visible due to massive exudation in vitreous. Microbiological investigations of aqueous humor did not retrieve any bacterial or fungal organisms. All eyes became pthisical in few weeks despite treatment with topical and subconjunctival antibiotics and steroids. Similar cases appeared again after two years in 1977 with identical presentation and outcome. Both out breaks began during September and lasted until about January- the next year. PMID- 29022950 TI - Diabetes Mellitus and the risk of Primary open angle glaucoma. AB - BACKGROUND: Diabetes mellitus (DM) is one of the risk factors for Primary open angle glaucoma (POAG). Inclusion of DM as a risk factor for POAG is controversial. The objectives of the study were to investigate whether Type II (T2) DM is a risk factor for POAG and to determine central corneal thickness (CCT) in the subjects with T2DM and to examine the relationship between T2DM and intraocular pressure (IOP). MATERIALS AND METHODS: A comparative cross sectional study was conducted including 189 subjects of age > 40 years. In Group I, 113 patients diagnosed with T2DM and Group II, age and sex matched 76 subjects with POAG without DM was included. Detailed ocular examination, IOP, CCT and funduscopy evaluation was done. RESULTS: Most of the patients were more than 60 years of age with mean age 58 +/- 11 years. Male: female ratio was 1:1. POAG was seen in 27.4% of patients with T2DM. Mean IOP in T2DM was 14.67+/- 2.63mmHg and in non diabetic, 17.25+/-4.47 mmHg (p less than0.00). In group I, mean CCT was 538.83+/- 22.7MUm and in group II, 531.26 +/- 20.9MUm (p-0.126). There was no association between CCT and glaucoma (p=0.072, 95% CI: -0.76 -17.46). The study could not elicit an association of T2DM with glaucoma. Duration of T2DM did not affect an association between T2DM and glaucoma (p-0.757). Random blood sugar (p less than0.001) and oral hypoglycemic drugs (p=0.030) showed an association with glaucoma. CONCLUSION: The study failed to show an association between T2DM and primary open angle glaucoma and CCT though an association seen with IOP. A larger prospective comparative study may be help in understanding this association. PMID- 29022951 TI - Safety of Fixed drug Combination in Post -Operative Cataract Patients, at Tertiary Care Centre - In South India. AB - INTRODUCTION: Cataract is any opacification in lens or its capsule, which accounts for about 50% of treatable blindness worldwide. The prevalence of cataract in India is about 62.6%. The incidence of post operative endophthalmitis ranges from 0.05% - 0.14% and so the use of post-operative antibiotics and steroids is necessary to control infection and prevent inflammation. Fixed drug combinations not only cut the cost but also the dosage and improve the compliance of patients in the immediate post operative period. In this regard, the present study was conducted with the aim of studying the efficacy of using fixed drug combination (Difluprednate and Moxifloxacin) in reducing ocular inflammation and pain in post-operative patients undergoing cataract surgery. METHODOLOGY: Study design: Prospective interventional study, in which 749 eyes underwent SICS with IOL. All of them were treated with Difluprednate and Moxifloxacin, combination eye drops postoperatively 4 times a day, and reviewed on day 1, 5 and once in two weeks up to 6 weeks. RESULTS: Out of 749 eyes, 730 were normal, 10 eyes had minimal raise in IOP in the range of 21 mmHg-31mmHg (considering 21mmHg as baseline) which decreased without any intervention within 3 weeks and only 9 eyes had raise in IOP of more than 31mmHg, which did not decrease in spite of discontinuing the drops and needed anti-glaucoma treatment. CONCLUSION: Our study clearly shows that fixed drug combination of antibiotic and steroid does not cause raised IOP in about 97% of cases of SICS in the post-operative period and also improves the compliance of the patients. PMID- 29022952 TI - Ocular morbidity among porters at high altitudes. AB - INTRODUCTION: High altitude, often characterized by settings over 2400m, can be detrimental to the human body and pose a significant risk to ocular health. Reports concerning various ocular morbidities occurring as a consequence of high altitude are limited in the current literature. OBJECTIVES: This study was aimed at evaluating the ocular health of porters working at high altitudesof Himalayas in Nepal. MATERIALS AND METHODS: A mobile eye clinic was set up in Ghat and patient data were collected from its out- patient unit by a team of seven optometrists which was run for five days. Ghat is a small village in north eastern Nepal, located at 2860 m altitude. Travellers walking through the trekking route were invited to get their eyes checked at the clinic. Comprehensive ocular examinations were performed, including visual acuities, objective and subjective refraction, anterior and posterior segment evaluations, and intraocular pressure measurements; blood pressure and blood glucose levels were also measured as required. Ocular therapeutics, prescription glasses, sunglasses and ocular health referrals were provided free of cost as necessary. A total of 1890 people visited the eye clinic, among which 57.4% (n=1084) were porters. CONCLUSIONS: Almost half of the porters had an ocular morbidity. Correctable refractive error was most prevalent, with other ocular health-related complications, including dry eye disease, infectious disorders, glaucoma and cataract. Proper provision of regular and effective eye care services should be made more available for those residing at these high altitudes in Nepal. PMID- 29022953 TI - Pattern of Corneal Diseases in Paediatric Age Group at a Tertiary Eye Care Center in Nepal. AB - OBJECTIVE: It is to study the pattern of corneal diseases (including injuries) in paediatric population in a tertiary eye care center. MATERIALS AND METHODS: A descriptive, cross sectional study was carried out in a tertiary eye care center which included 176 cases. RESULTS: Out of 176 cases studied, 6 cases (3.4%) presented with congenital causes, 4 cases (2.27%) were of dystrophy and ectasia, 63 cases (35.79%) had infective origin, 17 cases (9.65%) had inflammatory cause, 9 cases (5.11%) had systemic association and 77 cases (43.75%) had traumatic causes. CONCLUSION: Trauma was noted to be the most important cause for corneal diseases in paediatric population followed by infective conditions. Viral keratitis was found to be the most common type of corneal infection in the paediatric age group. PMID- 29022954 TI - Agreement on diabetic retinopathy grading in fundus photographs by allied ophthalmic personnel as compared to ophthalmologist at a community setting in Nepal. AB - INTRODUCTION: Diabetic retinopathy (DR) is the emerging cause of blindness in the developing world. Timely detection of DR could save vision from its avoidable blinding condition. OBJECTIVE: To assess the accuracy of DR grading in fundus photographs by the allied ophthalmic personnel (AOP) as compared to ophthalmologist at a community setting in Nepal. MATERIALS AND METHODS: Fundus photographs of known diabetes subjects attending for DR screening were graded by two groups of AOP and ophthalmologist. Agreement for DR grading by the AOP versus ophthalmologist was assessed using kappa coefficient (k). RESULTS: Fundus photographs of 864 eyes of 435 subjects with diabetes were evaluated in the study. The agreement was substantial for detection of normal versus abnormal retina by both the AOP 1 and AOP 2. For normal versus abnormal macula, the agreement was substantial for AOP 1 and moderate for AOP 2. The agreement for grading macular exudates, retinal hemorrhage, venous beading ranged from moderate to substantial for both the AOPs. There was overall substantial agreement for diagnosing cases with or without DR and CSME by both the AOP 1 and AOP 2. The agreement ranged from fair to moderate for diagnosing other stages of NPDR by both the AOPs. CONCLUSION: Allied ophthalmic personnel with training could be a first level DR screener and referral of vision threatening DR. Three out of five diabetics could be managed at community level and thus reduce work load of ophthalmologist. This DR screening modality can be useful in other resource limited countries. PMID- 29022955 TI - Demographic pattern and clinical characteristics of optic neuritis in a tertiary eye care centre. AB - PURPOSE: To study the demographic pattern and clinical characteristics of optic neuritis cases in a tertiary eye care centre in Nepal. DESIGN: Descriptive, cross sectional study. METHODOLOGY: Complete ocular examination was done in all the newly diagnosed cases of optic neuritis presenting from January 1st 2012 to June 30th 2013. Demographic pattern, clinical features, visual acuity, colour vision, contrast sensitivity and visual field defects were studied. RESULTS: Sixty seven eyes of 50 patients (28 females and 22 males) with optic neuritis were included in the study. The mean age was 34.32 years +/- 13.72 years. The male: female ratio was 1:1.27. All the cases presented with complaint of blurring of vision. Painful ocular movement was noted in 58%. On ophthalmoscopic examination around 2/3rd of eyes suffered from papillitis (72%) and 1/3rd from retrobulbar optic neuritis (27%). Only one case of neuroretinitis (1%) was seen in the study. The colour vision pattern was variable. Contrast sensitivity was reduced in 94%. Centrocaecal scotoma was seen in 10.5%. CONCLUSION: Females were predominantly affected. Unilateral involvement was the most common presenting as papillitis. PMID- 29022956 TI - Ultrasound evaluation of normal orbital preseptal thickness. AB - INTRODUCTION: Orbital preseptal thickness is an important parameter not only in diagnosis of orbital cellulitis but also in recent classification and management of dark eye circle (DEC). OBJECTIVE: The aim of this study was to evaluate normal preseptal thickness and collect baseline data in normal skin in a given population with no orbital pathology. MATERIALS & METHOD: Ultrasound was performed on 42 patients (23 females and 19 males) with clinically normal eyes and orbits for evaluation of normal orbital preseptal thickness. The age ranged between 15 to 35 years with a mean age of 24.9 years. RESULTS: Our study concluded that normal preseptal thickness ranged from 2.1 mm to 5.5 mm. Mean preseptal thickness for both sides was 3.9 mm. CONCLUSION: Ultrasound can be used as quick, reliable and cost-effective modality for evaluation of orbital preseptal thickness. PMID- 29022957 TI - Clinical Patterns and risk factors for rhegmatogenous retinal detachment at a tertiary eye care centre of northern India. AB - PURPOSE: To identify patterns and risk factors for rhegmatogenous retinal detachment (RD) in northern India. METHODS: This was a retrospective study conducted at a tertiary care centre in northern India. 378 consecutive records of patient, operated between January 2011 to June 2012 were included for analysis. Clinical history, signs and risk factors of RD were evaluated. Comparison was done with available literature from other developing nations. RESULTS: Mean age of the patients was 40.12 + 20.43 years (Range 12-85 years); 81% were male and half of the patients presented after 1 month of visual symptoms. Retinal breaks were discovered commonly in the temporal region, while no break was found in10% of the patients. PVR more than grade C was seen in a third of the patients. Prior surgery for cataract was found to be the most common identifiable risk factor for RD (40%). Bilateral RD was seen in 13% of the patients. CONCLUSION: Pseudophakia is the commonest risk factor for RD. If no retinal break is discovered pre operatively, the surgeon should seek a retinal break temporally during surgery. Bilateral RD is a serious concern for rural northern India, probably linked to delayed presentation. PMID- 29022958 TI - Unilateral lattice corneal dystrophy in a young female: A unique case report. AB - BACKGROUND: Unilateral lattice corneal dystrophy is a rare entity. OBJECTIVE: To highlight the evidence of unilateral lattice corneal dystrophy in a young female. CASE: A young 28 years old female presented to the outpatient department of Ophthalmology with slowly progressive diminution of vision in left eye for one month. On ophthalmological examination best corrected visual acuity (BCVA) was 20/20 and 20/40 with refractive error of plano and -0.75D Cyl @30 for right and left eye respectively. Ocular examination of right eye was unremarkable. On slit lamp examination, left eye showed multiple radial lattice lines in branching spider like pattern in the temporal cornea with pupillary margin involvement. The lattice pattern was confined to anterior to midstroma of the cornea with intact epithelium and unremarkable endothelium. The lesions did not involve the limbus. These lattice lines were prominent on retroillumination. In temporal quadrant near pupillary margin a small radial nebulomacular corneal opacity was seen without any corneal vascularisation or edema. The anterior chamber was deep and quiet. Corneal sensations were markedly reduced. Intraocular pressure was 10 and 12mmHg for right and left eye respectively with noncontact tonometry. Fundus examination was unremarkable. Family history and systemic history was negative. Optical coherence tomography(OCT) showed hyperreflective material in midstoma confirmed the diagnosis of unilateral lattice corneal dystrophy(LCD) with an apparently healthy fellow eye. PMID- 29022959 TI - Alveolar soft part sarcoma of the orbit, a case report of a rare tumor. AB - BACKGROUND: Alveolar Soft Part Sarcoma is a rare malignant tumor of uncertain histogenesis, representing 0.5-1% of all soft tissue tumors. It occurs predominantly in head and neck regions, especially the orbit and the tongue, in infants, causing no specific symptoms for an extended period of time. CASE: A four year old girl was brought to consultation because of persistent swelling of her left upper and lower eyelid for the past six months. A 4 mm proptosis was noted on her left eye with significant upwards displacement of the globe. A firm, not pulsating and non tender mass was palpated, and motility examination revealed deficient abduction and infraduction. Visual acuity was 20/40 and 1/200 in the right and left eye, respectively. The computed tomography revealed an extraconal mass on the inferotemporal aspect of the left orbit, with no bony erosion or globe invasion. An excisional biopsy was made, finding a tumor with nests of clusters of large polygonal cells, separated by fibrous septa and a sinusoidal vascular channel. An Alveolar Soft Part Sarcoma was diagnosed. Our patient had a favorable post-operative follow up, and oncologic evaluations have not shown metastasis or local recurrences. Observations and Conclusions: Alveolar Soft Part Sarcoma is a rare malignant tumor of indolent course, but with propensity to distant metastases, making early diagnose and long term follow up necessary. PMID- 29022960 TI - Idiopathic Intracranial Hypertension in a pubertal paediatric Indian patient. AB - BACKGROUND: Idiopathic Intracranial Hypertension (IIH) is characterised by raised intracranial pressure (ICP) with normal cerebrospinal fluid (CSF) composition and absence of hydrocephalus or space occupying lesions. IIH is a rare disease in children. It can lead to visual impairment but prompt diagnosis and treatment in most of the cases will prevent potentially permanent visual loss. OBJECTIVE: To report a rare case of Idiopathic Intracranial Hypertension in a pubertal child, clinical features, and findings of Magnetic Resonance Imaging (MRI) and visual field of this case. CASE: An adolescent girl aged 14 years presented with headache and transient visual obscuration for two weeks. On examination, findings (fundus, visual field and MRI) were suggestive of Idiopathic intracranial hypertension. She did not have any classical predisposing risk factors. She recovered very well with acetazolamide and short term steroid therapy with no sequelae and clinical recurrence over a follow up of 12 months. CONCLUSION: This is a rare case of IIH in a child, which was confirmed on the MRI and visual field testing. PMID- 29022961 TI - Orbital Teratoma: A rare congenital tumour. AB - BACKGROUND: Orbital teratomas are congenital, unilateral germ cell tumors, which are present at birth with moderate to massive proptosis. The rare tumour has to be managed individually and is at times difficult. CASE: A female child in her 2nd day of life was brought to our department with complains of forward bulging of the left eye which was noticed since the time of her birth. OBSERVATION: Examination and investigations revealed a mass with scattered foci of calcification. The mass was causing expansion of left orbit with thinning and scalloping of bony boundaries of left orbit with no intracranial component. The scan suggests the diagnosis of orbital teratoma which was further confirmed by histopathological examination. CONCLUSION: The rare tumour presents a challenge in management. The aim of management depends upon the extent of tumour, preservation of vision whenever possible, promotion of normal orbital growth and cosmesis. PMID- 29022962 TI - Retinal necrosis as the initial presentation of primary intraocular lymphoma. AB - A 72 years old female presented with bilateral painless progressive loss of vision over one year. She was diagnosed as non-resolving bilateral panuveitis. Her visual acuity in right eye was hand movement close to face and left eye was perception of light with inaccurate projection of rays. Bilateral anterior chamber had 1+ cells and flares. Vitreous cells had 1+ cells and haze in right eye but the left eye had 3+ vitreous cells and haze. Right eye fundus had multiple, discrete sub retinal yellowish deposits with subretinal haemorrhage and macular edema with perivascular infiltrates. In left eye, disc was just visible. The patient underwent diagnostic vitrectomy in left eye and undiluted vitreous sample on cytology showed reactive large lymphoid cells with necrotic background pattern suggestive of intraocular lymphoma. Patient underwent external beam radiotherapy and chemotherapy. PMID- 29022963 TI - Tuberculous Osteomyelitis of Orbit- A Case Report. AB - BACKGROUND: Orbital tuberculosis is a rare manifestation of extrapulmonary tuberculosis. We report an interesting case of osteomyelitis of orbital bone in an Indian child. CASE REPORT: A 9- year old girl presented with a gradually increasing painless swelling of left upper lid and blepharoptosis along with swelling of left side of forehead for last two months. The swelling was soft, fluctuating and non-tender. Diagnostic tap revealed thick pus which prompted us to do an incisional drainage of the abscess. The pus was sterile on microbiological examination. A diagnosis of osteomyelitis of orbit along with cold abscess of infratemporal fossa was made on the basis of clinical examination, positive Mantoux (MX) test, high erythrocyte sedimentation rate (ESR) and bony erosion of frontal and zygomatic bones in contrast enhanced computerized tomography (CECT). Patient showed marked improvement with antitubercular drug (ATD) but a sinus developed at the incision site. Six months later patient presented with occasional serous discharge from the sinus.The patient underwent excision of the sinus along with curettage and debridement of the left frontal bone and the tissue was sent for histopathological and microbiological examination. ATD was continued for 15 months. Her post-treatment three year follow up was without any recurrence. CONCLUSION: High index of suspicion should be kept for early diagnosis and timely treatment of the orbital tuberculosis. We want to report the case because of its rarity and clinical interest. PMID- 29022964 TI - Nocardia Arthritidis Keratitis: Case Report and Review of the Literature. AB - INTRODUCTION: Keratitis due to Nocardia infection is not commonly encountered in clinical practice and may therefore be mistaken for fungal or viral keratitis leading to delayed treatment and increased risk of permanent visual impairment. CASE: An otherwise healthy 27 years old Caucasian Active Duty military member presented to the clinic with three days of light sensitivity and irritation of his right eye. He carried a history of PRK in both eyes six years prior and admitted to recent contact lens overuse. With empiric treatment for typical bacterial keratitis including corticosteroids, his condition worsened on close follow-up. While awaiting cultures, a shift to fortified topical antibiotics tobramycin, moxifloxacin and ciprofloxacin showed improvement with closure of the epithelial defect. Ulcerative relapse occurred with withdrawal of therapy. Culture proven Nocardia arthritidis prompted successful treatment with topical antibiotic amikacin. On follow-up at three months, the patient was doing well with a small peripheral anterior stromal scar without permanent visual sequelae. Visual acuity returned to baseline of 20/20 in the affected eye. CONCLUSION: Keratitis caused by Nocardia species, including arthritidis, responds well to amikacin. Late diagnosis and early treatment withdrawal may lead to a prolonged recovery. Current literature indicates that corticosteroids may be harmful in the treatment of Nocardia keratitis. Increased awareness of Nocardia as an ocular pathogen has the potential to reduce unnecessary morbidity related to delayed diagnosis, inadequate therapy and inappropriate use of corticosteroids. PMID- 29022965 TI - A rare presentation of exudative macroaneurysms in unilateral Eales' disease. AB - BACKGROUND: A case of exudative macroaneurysms in unilateral Eales' disease is reported. 'Eales disease' is an idiopathic bilateral occlusive periphlebitis with neovascularisation and mostly presents with vitreous hemorrhage. CASE: A 30 year old male presented with diminution of vision in left eye (6/36) for 1 month. Slit Lamp examination of both eyes revealed normal anterior segment. Fundus examination of left eye with + 90 D lens revealed reddish lesions at the macula with surrounding circinate exudation. On peripheral examination hemorrhages were seen along with vasculitis in the superotemporal quadrant.The right eye fundus was normal.All laboratory investigations were found within normal limits. CONCLUSION: Eales' disease is mostly a bilateral condition but this case is rare as there is uniocular involvement with exudative macroaneurysms.Laser therapy was instituted which was effective in management of this condition with restoration of normal visual acuity.There was no relapse on follow up for 2 years. PMID- 29022966 TI - Thermo-responsive self-immolative nanoassemblies: direct and indirect triggering. AB - A thermo-responsive end-cap based on a retro-Diels-Alder and subsequent furan elimination reaction was developed. It was used to cap poly(ethyl glyoxylate), allowing end-to-end depolymerization upon thermal triggering. Using block copolymers, thermo-responsive micelles and vesicles were prepared and shown to disassemble upon heating. Thermal degradation could also be triggered indirectly by magnetic field hyperthermia after incorporation of iron oxide nanoparticles into the assemblies. PMID- 29022967 TI - Aza-capped cyclodextrins for intra-cavity metal complexation. AB - Aza-capped, methylated cyclodextrins (CDs) were obtained in high yields by reacting the soft nitrogen nucleophile 2-nitrobenzenesulfonamide with either A,B dimesylated CDs in basic media or their diol analogues under Mitsunobu reaction conditions followed by deprotection with thiophenol. A methyl pyridine substituent was grafted on the N atom of these secondary amines. When built on an alpha-CD scaffold, the resulting tertiary amine no longer undergoes nitrogen inversion at room temperature and behaves as a confining ligand, opening the way to intra-cavity metal complexation and promoting the formation of supramolecular helices. PMID- 29022968 TI - The structure of coronene cluster ions inferred from H2 uptake in the gas phase. AB - Mass spectra of helium nanodroplets doped with H2 and coronene feature anomalies in the ion abundance that reveal anomalies in the energetics of adsorption sites. The coronene monomer ion strongly adsorbs up to n = 38 H2 molecules indicating a commensurate solvation shell that preserves the D6h symmetry of the substrate. No such feature is seen in the abundance of the coronene dimer through tetramer complexed with H2; this observation rules out a vertical columnar structure. Instead we see evidence for a columnar structure in which adjacent coronenes are displaced in parallel, forming terraces that offer additional strong adsorption sites. The experimental value for the number of adsorption sites per terrace, approximately six, barely depends on the number of coronene molecules. The displacement estimated from this number exceeds the value reported in several theoretical studies of the bare, neutral coronene dimer. PMID- 29022969 TI - Syntheses, structures and properties of metal phosphates Pb2Mg(PO4)2, Pb4Zn8(PO4)8 and alpha-BaZn2(PO4)2. AB - Pb2Mg(PO4)2, Pb4Zn8(PO4)8 and alpha-BaZn2(PO4)2 have been synthesized by the standard solid-state reaction and their structures were determined by single crystal X-ray diffraction for the first time. Pb2Mg(PO4)2, Pb4Zn8(PO4)8 and alpha BaZn2(PO4)2 crystallize in the monoclinic crystal system, P21/c, C2/c and the trigonal crystal system, P3[combining macron]m1, respectively. The structure of Pb2Mg(PO4)2 possesses a three-dimensional framework consisting of MgO6 octahedra and PO4 tetrahedra and the Pb2+ cations reside in the [Mg6P6O12] tunnels. Pb4Zn8(PO4)8 and alpha-BaZn2(PO4)2 are two-dimensional layered structures with [Zn4P4O16]infinity layers for Pb4Zn8(PO4)8 and [Zn3P3O12]infinity honeycomb double layers for alpha-BaZn2(PO4)2. And in the structure of Pb4Zn8(PO4)8, there are four different Zn-P-O layers, which is reported for the first time in zinc phosphates. In addition, thermal property analysis, and UV-Vis-NIR diffuse reflectance and infrared spectroscopy were also performed. First-principles theoretical studies were also conducted to aid the understanding of their band structures and densities of states. PMID- 29022970 TI - MSAll strategy for comprehensive quantitative analysis of PEGylated-doxorubicin, PEG and doxorubicin by LC-high resolution q-q-TOF mass spectrometry coupled with all window acquisition of all fragment ion spectra. AB - The covalent attachment of polyethylene glycol (PEG) to therapeutic compounds (known as PEGylation) is one of the most promising techniques to improve the biological efficacy of small molecular weight drugs. After administration, PEGylated prodrugs can be metabolized into pharmacologically active compounds so that PEGylated drug, free drug and released PEG are present simultaneously in the body. Understanding the pharmacokinetic behavior of these three compounds is needed to guide the development of pegylated theranostic agents. However, PEGs are polydisperse molecules with a wide range of molecular weights, so that the simultaneous quantitation of PEGs and PEGylated molecules in biological matrices is very challenging. This article reports the application of a data-independent acquisition method (MSAll) based on liquid chromatography electrospray ionization quadrupole time-of-flight mass spectrometry (LC-q-q-TOF-MS) in the positive ion mode to the simultaneous determination of methoxyPEG2000-doxorubicin (mPEG2K-Dox) and its breakdown products in rat blood. Using the MSAll technique, precursor ions of all molecules are generated in q1, fragmented to product ions in q2 (collision cell), and subjected to TOF separation before precursor and product ions are recorded using low and high collision energies (CE) respectively in different experiments for a single sample injection. In this study, dissociation in q2 generated a series of high resolution PEG-related product ions at m/z 89.0611, 133.0869, 177.1102, 221.1366, 265.1622, 309.1878, and 353.2108 corresponding to fragments containing various numbers of ethylene oxide subunits, Dox-related product ions at m/z 321.0838 and 361.0785, and an mPEG2K-Dox specific product ion at m/z 365.0735. Detection of mPEGs and mPEG2K-Dox was based on high resolution extracted ions of mPEG and the specific compound. The method was successfully applied to a pharmacokinetic study of doxorubicin, mPEG2K (methylated polyethylene glycol 2K), and mPEG2K-doxorubicin in rats after a single intravenous injection of mPEG2K-doxorubicin. To the best of our knowledge, this is the first assay that simultaneously determines mPEG, Dox, and mPEG2K-Dox in a biological matrix. We believe the MSAll technique as applied in this study can be potentially extended to the determination of other PEGylated small molecules or polymeric compounds. PMID- 29022971 TI - Elastic moduli of biological fibers in a coarse-grained model: crystalline cellulose and beta-amyloids. AB - We study the mechanical response of cellulose and beta-amyloid microfibrils to three types of deformation: tensile, indentational, and shear. The cellulose microfibrils correspond to the allomorphs Ialpha or Ibeta whereas the beta amyloid microfibrils correspond to the polymorphs of either two- or three-fold symmetry. This response can be characterized by three elastic moduli, namely, YL, YT, and S. We use a structure-based coarse-grained model to analyze the deformations in a unified manner. We find that each of the moduli is almost the same for the two allomorphs of cellulose but YL is about 20 times larger than YT (140 GPa vs. 7 GPa), indicating the existence of significant anisotropy. For cellulose we note that the anisotropy results from the involvement of covalent bonds in stretching. For beta-amyloid, the sense of anisotropy is opposite to that of cellulose. In the three-fold symmetry case, YL is about half of YT (3 vs. 7) whereas for two-fold symmetry the anisotropy is much larger (1.6 vs. 21 GPa). The S modulus is derived to be 1.2 GPa for three-fold symmetry and one half of it for the other symmetry and 3.0 GPa for cellulose. The values of the moduli reflect deformations in the hydrogen-bond network. Unlike in our theoretical approach, no experiment can measure all three elastic moduli with the same apparatus. However, our theoretical results are consistent with various measured values: typical YL for cellulose Ibeta ranges from 133 to 155 GPa, YT from 2 to 25 GPa, and S from 1.8 to 3.8 GPa. For beta-amyloid, the experimental values of S and YT are about 0.3 GPa and 3.3 GPa respectively, while the value of YL has not been reported. PMID- 29022972 TI - Heterogeneous mesoporous manganese/cobalt oxide catalysts for selective oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran. AB - We report a heterogeneous catalytic protocol for the oxidation of 5 hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) using a mesoporous manganese doped cobalt oxide material. The absence of precious metals and additives, use of air as the sole oxidant, and easy isolation of products, along with proper catalyst reusability, make our catalytic protocol attractive for the selective oxidation of HMF to DFF. PMID- 29022974 TI - The mechanism of cesium ions immobilization in the nanometer channel of calcium silicate hydrate: a molecular dynamics study. AB - The cement-based matrices are preferred candidates in disposing nuclear waste due to the immobilization role of the calcium-silicate-hydrate (C-S-H) gel. To better understand the immobilization mechanism of cementitious materials, molecular dynamics was utilized to investigate the intensity distribution, local structure and dynamics properties of Cs+ ions in the vicinity of the calcium silicate surface. The strong inner-sphere adsorbed cesium ions were restricted by coordinated oxygen atoms in bridging and pair silicate tetrahedron and water molecules were fixed in the silicate channel by H-bonds network. On the other hand, the adsorption of chloride ion, repulsed by the negatively charged silicate surface, is mainly attributed to the formation of the cation-anion ionic pair near the interface. As compared with those of the solvated ions in the solution, the relaxation time of water in the hydration shell of adsorbed Cs+ is significantly increased and the diffusion coefficient of adsorbed Cs+ is dramatically reduced. Furthermore, based on the intensity profile and resident time analysis, the adsorption capacities of monovalent cations on the C-S-H surface increase with decrease in the ionic radius, following the sequence of Na+ ? K+ > Cs+. This study provides a molecular-level understanding of the immobilization mechanism of different ions in the C-S-H gel pores. PMID- 29022977 TI - Effect of lithium-trapping on nitrogen-doped graphene as an anchoring material for lithium-sulfur batteries: a density functional theory study. AB - N-Doped graphene (NG) has been widely used as a cathode material for lithium sulfur (Li-S) batteries due to its strong interaction with lithium polysulfide (LiPS) species. However, strong interaction between the NG substrate and the LiPS molecules induces undesirable molecular structure decomposition of LiPS. Due to the strong interaction between Li and NG, Li-trapping occurs during battery operation. Therefore, in this study, Li-trapped NG (LiNG) is introduced as a possible structure of NG, and the structural stability of LiNG under applied electric potential is examined. The effect of Li-trapping on the properties of NG as an anchoring material for Li-S batteries is investigated using density functional theory calculations. Li-trapping relieves the strong interaction between NG and LiPS, thereby avoiding decomposition of the LiPS molecule. Although the interaction between the LiPS molecule and the substrate is weakened, additionally formed interaction after Li-trapping, which is between Li in the substrate and S in the molecule, enables LiNG to suppress the shuttle effect. LiNG shows advanced anchoring behavior that suppresses the shuttle effect without any molecular decomposition of LiPS. This finding provides a further understanding of the effect of Li-trapping on the anchoring properties of NG for Li-S batteries. PMID- 29022979 TI - The antibacterial and antibiofilm efficacies of a liposomal peptide originating from rice bran protein against Listeria monocytogenes. AB - With the aim of exploring a natural antilisterial peptide from food-derived origin, an antibacterial peptide named as Alpep7 was purified from the bromelain hydrolysate of rice bran protein (RBP) in this study. The resulting amino acid consequence was identified as KVDHFPL (Lys-Val-Asp-His-Phe-Pro-Leu) by ultraperformance liquid chromatography tandem matrix-assisted laser desorption/ionisation quadrupole time-of-flight mass spectrometry (MALDI Q-TOF MS). In addition, to assess the probability of the targeted delivery of liposome encapsulation of the peptide to Listeria biofilm, Alpep7-loaded liposomes were further prepared from a mixture of dipalmitoylphosphatidylcholine, stearylamine and cholesterol in a molar ratio of 10 : 3 : 2 and characterised by the analysis of particle size, zeta potential, microtopography and storage stability. The results showed that the liposomes exhibited a well-defined spherical shape, with an average diameter below 200 nm. The liposomes maintained favourable stability after storage at 4 degrees C for 4 weeks. Comparisons between the activities of free and liposomal Alpep7 via microbroth dilution, regrowth analysis and confocal scanning laser microscopy suggested that liposomal delivery was more effective during the initial exposure of the liposomes to the biofilms. The thermodynamic analysis indicated that the adsorption of liposomal Alpep7 to the listerial biofilm was a spontaneous, exothermic process. The results may provide a natural means for the treatment of listerial contamination and guide the potential application of liposomes for the targeted delivery of antimicrobials to pathogenic biofilms in the food industry. PMID- 29022980 TI - The effect of compressed CO2 on the self-assembly of surfactants for facile preparation of ordered mesoporous carbon materials. AB - The effect of compressed CO2 on the properties of ordered mesoporous carbon (OMC) was investigated based on the self-assembly of surfactants in aqueous solution under mild conditions, and the acidic or basic conditions commonly used in traditional methods were substituted by compressed CO2. Compressed CO2 acts as both a physiochemical additive and a reagent to produce an acid catalyst in the synthesis. This new one-pot assembly approach can efficiently adjust the porous characteristics of OMC by employing different amounts of compressed CO2, and the self-assembly mechanism is proposed. The spherical micelles formed by triblock copolymer Pluronic F127 serve as a structure-directing agent for the controllable synthesis of nanomaterials. Resorcinol/phloroglucinol and formaldehyde are used as carbon-yielding components. It was found that CO2 can penetrate into the hydrocarbon-chain region of the F127 micelles, leading to template swelling and influencing the properties of OMC. The surfactant and precursors attracted by H bonding interactions self-assemble and produce OMC after polymerization and carbonization. The resulting OMC as a supercapacitor electrode material exhibits outstanding specific capacitances, and the electrochemical performances change as the structural properties are varied. PMID- 29022978 TI - Freeze-dried strawberry and blueberry attenuates diet-induced obesity and insulin resistance in rats by inhibiting adipogenesis and lipogenesis. AB - Obesity and type 2-diabetes are becoming a worldwide health problem, reiterating the importance of alternative therapies to tackle their progression. Here, we hypothesized that supplementation of diet with 6% w/w of a freeze-dried strawberry-blueberry (5 : 1) powder (FDSB) could exert beneficial metabolic effects on Wistar rats. FDSB-supplemented animals experienced significantly reduced body weight gain, food efficiency and visceral adiposity accumulation in two independent experiments. FDSB supplementation also contributed to lower area under the curve after an intraperitoneal GTT and reduced serum insulin levels and an insulin resistance index (IR-HOMA) in HFS diet-fed animals, together with reduced plasma MCP-1 inflammation marker concentrations. Gene expression analysis in retroperitoneal adipocytes from experiment 1 and 3T3-L1 cells showed that FDSB inhibited adipogenesis and lipogenesis through down-regulation of Pparg, Cebpa, Lep, Fasn, Scd-1 and Lpl gene expression. Untargeted metabolomics identified the cis isomer of resveratrol-3-glucoside-sulphate as a metabolite differentially increased in FDSB-treated serum samples, which corresponds to a strawberry metabolite that could be considered a serum biomarker of FDSB-intake. Our results suggest that FDSB powder might be useful for treatment/prevention of obesity related diseases. PMID- 29022982 TI - Repelling and ordering: the influence of poly(ethylene glycol) on protein adsorption. AB - Development of new materials for drug delivery and biosensing requires the fine tuning of interfacial properties. We report here the influence of the poly(ethylene glycol) (PEG) grafting density in model phospholipid monolayers on the adsorption behavior of bovine serum albumin and human fibrinogen, not only with respect to the amount of adsorbed protein, but also its orientational ordering on the surface. As expected, with increasing interfacial PEG density, the amount of adsorbed protein decreases up to the point where complete protein repellency is reached. However, at intermediate concentrations, the net orientation of adsorbed fibrinogen is highest. The different proteins respond differently to PEG, not only in the amount of protein adsorbed, but also in the manner that proteins adsorb. The results show that for specific cases, tuning the interfacial PEG concentration allows to guide the protein adsorption configuration, a feature sought after in materials for both biosensing and biomedical applications. PMID- 29022985 TI - Correction: A bioenergetic mechanism for amoeboid-like cell motility profiles tested in a microfluidic electrotaxis assay. AB - Correction for 'A bioenergetic mechanism for amoeboid-like cell motility profiles tested in a microfluidic electrotaxis assay' by Hagit Peretz-Soroka et al., Integr. Biol., 2017, DOI: . PMID- 29022983 TI - A tuneable microfluidic system for long duration chemotaxis experiments in a 3D collagen matrix. AB - In many cell types, migration can be oriented towards a chemical stimulus. In mammals, for example, embryonic cells migrate to follow developmental cues, immune cells migrate toward sites of inflammation, and cancer cells migrate away from the primary tumour and toward blood vessels during metastasis. Understanding how cells migrate in 3D environments in response to chemical cues is thus crucial to understanding directed migration in normal and disease states. To date, chemotaxis in mammalian cells has been primarily studied using 2D migration models. However, it is becoming increasingly clear that the mechanisms by which cells migrate in 2D and 3D environments dramatically differ, and cells in their native environments are confronted with a complex chemical milieu. To address these issues, we developed a microfluidic device to monitor the behaviour of cells embedded in a 3D collagen matrix in the presence of complex concentration fields of chemoattractants. This tuneable microsystem enables the generation of (1) homogeneous, stationary gradients set by a purely diffusive mechanism, or (2) spatially evolving, stationary gradients, set by a convection-diffusion mechanism. The device allows for stable gradients over several days and is large enough to study the behaviour of large cell aggregates. We observe that primary mature dendritic cells respond uniformly to homogeneous diffusion gradients, while cell behaviour is highly position-dependent in spatially variable convection-diffusion gradients. In addition, we demonstrate a directed response of cancer cells migrating away from tumour-like aggregates in the presence of soluble chemokine gradients. Together, this microfluidic device is a powerful system to observe the response of different cells and aggregates to tuneable chemical gradients. PMID- 29022987 TI - Double-mesoporous core-shell nanosystems based on platinum nanoparticles functionalized with lanthanide complexes for in vivo magnetic resonance imaging and photothermal therapy. AB - A double-mesoporous nanosystem was synthesized for treating as well as imaging cancer cells by using a simple and mild method. The mesoporous platinum (Pt) nanoparticles acting as a core show excellent photothermal effect under illumination with an 808 nm near infrared (NIR) laser. The mesoporous silica linked with a lanthanide (Gd) complex acting as a shell displays potential applications as a contrast agent for magnetic resonance imaging (MRI). The final mPt@mSiO2-GdDTPA nanosystems exhibit good biocompatibility in vitro and in vivo, when investigated by methyl thiazolyl tetrazolium assay and histological and serum biochemistry analysis. The investigation of the photothermal effect shows that the mPt@mSiO2-GdDTPA nanosystems exhibit an excellent photothermal therapy effect on HeLa cells and tumor-bearing mice. As theranostic agents, the nanosystems display a higher r1 value than the medical contrast agent magnevist and were successfully applied to in vivo MRI of Kunming mice. Therefore, the first systematic study on the photothermal effect of nanosystems based on mesoporous Pt nanoparticles does encourage the potential applications of metal nanoparticles and hybrid nanocomposites for cancer bioimaging and therapy. PMID- 29022988 TI - A microporous MOF with open metal sites and Lewis basic sites for selective CO2 capture. AB - A robust indium-organic framework (InOF-15) with open metal sites and Lewis basic sites has been successfully synthesized using a quinoline-based dicarboxylic acid. Moreover, it exhibits high IAST selective CO2 sorption from CO2/CH4 and CO2/N2 mixtures at 273 K, which has been attributed to the coexistence of OMSs and LBSs with strong synergistic effects. PMID- 29022989 TI - Prophylactic intravenous calcium therapy for exchange blood transfusion in the newborn. AB - BACKGROUND: Exchange blood transfusion (EBT) is a form of whole blood transfusion in which the total blood volume is replaced within a few hours. In perinatal and neonatal medicine, EBT is most often used in the management of severe anaemia or severe hyperbilirubinaemia in the first week of life. Hypocalcaemia, one of the common morbidities associated with EBT, is thought to arise from the chelating effects of the citrate commonly used as an anticoagulant in the donor's blood. This disorder manifests with muscular and nervous irritability and cardiac arrhythmias. OBJECTIVES: To determine whether the use of prophylactic calcium reduces the risk of hypocalcaemia-related morbidities and death among newborn infants receiving EBT. SEARCH METHODS: We used the standard search strategy of the Cochrane Neonatal Review group to search the Cochrane Central Register of Controlled Trials (CENTRAL 2016, Issue 5), MEDLINE via PubMed (1966 to 29 June 2016), Embase (1980 to 29 June 2016), and CINAHL (1982 to 29 June 2016). We also searched clinical trials databases, conference proceedings, and the reference lists of retrieved articles for randomised controlled trials and quasi-randomised trials. SELECTION CRITERIA: All randomised and quasi-randomised trials of prophylactic intravenous calcium in EBT for newborns. DATA COLLECTION AND ANALYSIS: Two review authors independently assessed and extracted data on methods, participants, interventions, and outcomes (mean total and ionised serum calcium before and after EBT and the presence of adverse events such as hypoglycaemia, apnoea, cardiac arrest, and death immediately after EBT). We reported results as means difference (MD) with 95% confidence intervals (CI) for continuous outcomes and risk ratio (RR) and risk differences (RD) and 95% CIs for dichotomous outcomes. We assessed quality using the Cochrane 'Risk of bias' assessment tool and the GRADE system. MAIN RESULTS: We found only one quasi randomised trial with 30 participants that met our inclusion criteria. In the small trial, total and ionised serum calcium levels were measured immediately before and immediately after EBT. All the participants were included in the final analysis and all the important outcomes were reported. Primary outcomesThere was one death in each group (RR 1.00, 95% CI 0.07 to 14.55; RD 0.00, 95% CI -0.18 to 0.18; participants = 30; studies = 1). The study did not report the presence of cardiac arrhythmias within one week of EBT and the number of infants with serum calcium levels (total less than 8 mg/dL (2 mmol/L) or ionised less than 4.4 mg/dL (1.1 mmol/L)).Pair-wise comparison of EBT with intravenous 10% calcium gluconate versus EBT without intravenous calcium (change from baseline) showed mean total serum calcium was raised in the intervention group compared to the control group (MD -0.46, 95% CI -0.81 to -0.11; participants = 30; studies = 1). Very low quality evidence also indicated an increase in the levels of mean ionised serum calcium in the intervention group compared to the control group (MD -0.22, 95% CI -0.33 to -0.11; participants = 30; studies = 1). Secondary outcomesAdverse reactions to intravenous calcium therapy included cardiac arrest in one neonate in the intervention arm (RR 3.00, 95% CI 0.13 to 68.26; RD 0.07, 95% CI -0.10 to 0.23; participants = 30; studies = 1). There was apnoea and hypoglycaemia (RR 1.00, 95% CI 0.07 to 14.55; RD 0.00, 95% CI -0.18 to 0.18; participants = 30; studies = 1) in the two neonates who died. Data were not available for other major secondary outcomes such as the number of infants with reduced serum magnesium, reduced parathormone, increased calcitonin, presence of seizures, carpopedal spasm, jitteriness and prolonged QTc interval on electrocardiography within one week of EBT. AUTHORS' CONCLUSIONS: Very low-quality data from one quasi-randomised controlled trial suggested that the mean serum total and ionised calcium increased in the study group but decreased in the control group immediately after EBT. However, the mean values of total and ionised calcium in both arms of studies remained within international reference ranges. Unfortunately, data were not available to assess the trend of total and ionised serum calcium to the end of the first week after EBT. Therefore, due to the very low quality of evidence available, it is difficult to support or reject the continual use of prophylactic intravenous calcium in newborn infants receiving EBT. Researchers are encouraged to conduct more robustly designed trials with larger numbers of participants, and particularly, addressing the pattern of differences based on gestational age of participants, type of anticoagulant used, and the volume of blood used. PMID- 29022990 TI - Postpartum Fecal and Flatal Incontinence: Silence, Stigma, and Psychological Interventions. PMID- 29022991 TI - Characterization of Cladosporium Species by Internal Transcribed Spacer-PCR and Microsatellites-PCR. AB - BACKGROUND: This investigation compared genetic similarities and diversities within and among Cladosporium species populations using the two PCR-based markers; Internal Transcribed Spacer (ITS)-PCR and microsatellite-PCR. METHODOLOGY: Nuclear ribosomal DNA internal transcribed spacers have been used to analyze intraspecific and interspecific relationships in various fungi. In the present study, the internal transcribed spacer (ITS)-PCR and microsatellite-PCR were used to identify the genetic diversities in Cladosporium species. RESULTS: The Internal Transcribed Spacer (ITS) was amplified using polymerase chain reaction combining primers ITS4 and ITS5. The PCR products were digested with three restriction enzymes and separated by agarose gel electrophoresis. Restriction patterns generated by CfoI and Msp I and RsaI were unique for most species assayed. The ITS-PCR fingerprinting methods led to a clear differentiation of the isolates at the species level. Fingerprinting profiles generated readily discriminated between each of the 6 species. Cluster analysis further supported this observation and clusters corresponding to each species were readily identified in the dendrograms. Seven microsatellite primers out of eight primers were unable to generate visible DNA fingerprints. CONCLUSION: Amplification experiments demonstrated that microsatellite primer, T3B and (GTG) 5 are technically simple tools for assaying genetic variability in Cladosporium spp. PMID- 29022992 TI - Growth and Nutrient Status of Kayu Kuku [ Pericopsis mooniana (Thw.) Thw] with Mycorrhiza in Soil Media of Nickel Post Mining Site. AB - BACKGROUND: Arbuscular Mycorrhizal Fungi are categorized as phytoremediant and increase the tolerance of plants under condition of heavy metal pollution. Effectiveness of AMF is determined very much by species of AMF, plant species and environmental condition. Therefore, testing the effect of local AMF on growth and absorption of nutrients and metal by Pericopsis mooniana planting stocks in growing media which are heavily polluted by heavy metal, need to be conducted. METHODOLOGY: There were testing of 6 inoculums of local AMF which were isolated from rhizosphere of P. mooniana, namely AMF from district of Kolaka (Lamedai Nature Reserve, Tanggetada Natural Forest, Bali Jaya Village Plantation Forest and PT. Vale Indonesia Tbk) and from Kendari town (Campus environment of Halu Oleo University and Office of Southeast Sulawesi Governor). Besides the 6 local AMF, there were treatment without AMF (control) and treatment with mycofer as comparison. RESULTS: Results showed that local AMF were effective in increasing growth and biomass of plants; absorption of C, N, P and K in three parts of the plants; Ca in stems and leaves and of Mg in leaf tissues; increasing formation of plant's root nodules and were able to reduce Ni content in tissues of kayu kuku planting stocks. Effects of local AMF from Lamedai nature reserve and AMF from PT. Vale Indonesia were greater as compared with those of mycofer IPB. Content of Ni in kayu kuku plant tissue was found more in roots as shown by the value of TF<1. CONCLUSION: Based on this study, kayu kuku is categorized as excluder species (TF<1) and moderate species toward Ni (>50 mg Ni/kg of plant dry weight) and possessed very high dependence on AMF (MIE >75%). Local AMF are potential to be developed as biological fertilizer to improve planting stocks for rehabilitation of degraded land. PMID- 29022993 TI - Evaluation of the Antiplasmodial Activity and Lethality of the Leaf Extract of Cassia alata L. (Fabaceae). AB - OBJECTIVE: Cassia alata L. (Fabaceae), one of the three plants contained in Saye, a polyherbal antimalarial remedy was assessed for its antimalarial potential and safety in mice. METHODOLOGY: Organic extracts were prepared from the leaves and tested on the D 10 chloroquine-sensitive strain of Plasmodium falciparum using the parasite lactate dehydrogenase assay. The 4 days suppressive test using Plasmodium berghei in mice was used to evaluate the in vivo antiplasmodial activity of the extracts. Animals were treated by oral route, once a day with 50, 100, 250 and 400 mg kg -1 b.wt., of the extracts. The acute toxicity of the extracts was assessed in mice according to Thompson and Weil method. The lethal effects of the extracts on animal's body weight, tissues, biochemical and haematological parameters were determined at 823.5, 1235.5, 1853 and 2779.5 mg kg -1 b.wt., respectively. RESULTS: The dichloromethane/methane (1:1, v/v) extract of Cassia alata was the most active against Plasmodium falciparum. The mean percent suppression of parasitemia in mice was equal to 22.5, 41.8 and 45.2% at 50, 250 and 400 mg kg -1 b.wt., respectively. No death and no clinically significant changes were recorded in mice. The maximum non-lethal dose was more than 16875 mg kg -1 in animals. No significant changes were observed in body weight, tissues morphology, biochemical and hematological parameters at doses above or equal to 2779.5 mg kg -1 b.wt. CONCLUSION: The dichloromethane/methanol leaf extract of Cassia alata had a good to moderate in vitro and in vivo antiplasmodial activity and was found to have low toxicity at high doses in tested animals. PMID- 29022994 TI - Evaluation of Hematological and Biochemical Activity of Ethanolic Extract of Zygophyllum simplex Linn. in Wistar Rats. AB - BACKGROUND AND OBJECTIVE: Zygophyllum simplex is commonly used in Saudi Arabia for the treatment of horny patches of skin and as an anthelmintic, analgesic and anti-inflammatory. The experiment was to aimed at to evaluate the constituents of Zygophyllum simplex extract and their effect on blood biochemical parameters in Wistar male rats. METHODOLOGY: The plant extract was orally administered to the rats (n = 10) at two doses of 250 and 500 mg kg -1 b.wt., for 30 days. Its effects on glucose, total cholesterol, triglycerides, aspartate aminotransferase (AST), alanine aminotransferase (ALT), serum creatinine kinase (CK), total protein, total bilirubin and blood urea were investigated. RESULTS: The results showed a significant decrease in total serum cholesterol, blood glucose and CK levels. However, levels of AST, ALT, triglycerides, total bilirubin, total protein and blood urea were unaltered. CONCLUSION: In coclusion, the ethanolic extract of Z. simplex may act as hypoglycemic and hypolipidimic in rats. PMID- 29022995 TI - Measurement of Interleukin-6 in Cerebrospinal Fluid for the Diagnosis of Bacterial Meningitis. AB - OBJECTIVE: It is assessed whether the measurement of interleukin-6 in the cerebrospinal fluid can serve as a biomarker for the diagnosis of bacterial meningitis. METHODOLOGY: Cerebrospinal fluid was obtained from 152 patients aged 0-15 years suspected of having meningitis. These patients were classified into the following groups: Bacterial meningitis (n = 85), aseptic meningitis (n = 35) and non-meningitis/control (n = 32) based on leukocyte count and bacterial identification by culture and molecular biology. Interleukin-6 concentrations in cerebrospinal fluid were measured by enzyme-linked immunosorbent assay. RESULTS: This study found a significant difference of the mean cerebrospinal fluid interleukin-6 level (p<=0.01) between patients with bacterial meningitis (3,538.69+/-2,560.78 pg mL -1) and patients with aseptic meningitis (332.51+/ 470.69 pg mL -1) or those of the control group (205.83+/-79.39 pg mL -1). There was also a significant difference of the mean cerebrospinal fluid interleukin-6 level between patients with aseptic meningitis and those of the control group. Interleukin-6 had the highest area under the ROC curve: 0.94 (95% confidence interval: 0.901-0.979) compared to that of cerebrospinal fluid glucose and total protein. At a cut-off value of 1,065.96 pg mL -1, interleukin-6 had a sensitivity of 76.2% and specificity of 100%. CONCLUSION: Interleukin-6 is a potential biomarker for the differential diagnosis of meningitis. PMID- 29022996 TI - Molecular Epidemiology of Rotavirus in Children under Five in Africa (2006-2016): A Systematic Review. AB - Group A human rotaviruses (RVA) are the most common causes of severe viral gastroenteritis in infants and young children worldwide. The available vaccines, while effective in Europe and North America have shown a reduced efficacy in Africa. One issue raised is the genetic variability of RVA. The objective of this study was to perform a literature review of molecular epidemiology to determine the prevalence of RVA genotypes circulating in Africa so as to establish a mapping of reliable data on these various genotypes. The search for articles was done from the National Institutes of Health (PUBMED) using three set of keywords. Articles were selected with inclusion criteria such as the date of publication, the age of the children, the sample size and the diagnostic techniques (standardized laboratory techniques). The data were imported into STATA SE version 11 software. Specific prevalence was estimated with Confidence Intervals (CI) of 95%. A total of 326 published studies were initially retrieved, out of which 27 studies were finally selected for the systematic review. The selected studies cover 20 African countries. The most encountered genotypes in Africa during this period were G1 (32.72%), followed by G2 (17.17%), G3 (9.88%), G9 (8.61%) and G12 (7.56%) among the G-types. The most common P-types were P[8] (48.71%) followed by P[6] (22.60%) and P[4] (11.58%) and the G1P[8] combination (22.64%) was the most encountered followed by G2P[4] (8.29%), G9P[8] (6.95%) and G2P[6] (5.00%). North Africa presented the highest prevalence of the P[8] genotype (65.70%). This review provides a comprehensive view of the current circulating rotavirus strains in Africa, which can be important in light of the new rotavirus vaccinations. Indeed, in Africa, the pursuit of national and continental studies for epidemiological surveillance of circulating rotavirus strains is vital for the promotion of future successful vaccines. PMID- 29022997 TI - Phytochemical Analysis, Identification and Quantification of Antibacterial Active Compounds in Betel Leaves, Piper betle Methanolic Extract. AB - BACKGROUND AND OBJECTIVE: The problems of bacterial diseases in aquaculture are primarily controlled by antibiotics. Medicinal plants and herbs which are seemed to be candidates of replacements for conventional antibiotics have therefore gained increasing interest. Current study was performed to investigate the presence of phytochemical constituents, antibacterial activities and composition of antibacterial active compounds in methanolic extract of local herb, Piper betle . METHODOLOGY: Qualitative phytochemical analysis was firstly carried out to determine the possible active compounds in P. betle leaves methanolic extract. The antibacterial activities of major compounds from this extract against nine fish pathogenic bacteria were then assessed using TLC-bioautography agar overlay assay and their quantity were determined simultaneously by HPLC method. RESULTS: The use of methanol has proved to be successful in extracting numerous bioactive compounds including antibacterial compounds. The TLC-bioautography assay revealed the inhibitory action of two compounds which were identified as hydroxychavicol and eugenol. The $-caryophyllene however was totally inactive against all the tested bacterial species. In this study, the concentration of hydroxychavicol in extract was found to be 374.72+/-2.79 mg g-1, while eugenol was 49.67+/-0.16 mg g 1. CONCLUSION: Based on these findings, it could be concluded that hydroxychavicol and eugenol were the responsible compounds for the promising antibacterial activity of P. betle leaves methanolic extract. This inhibitory action has significantly correlated with the amount of the compounds in extract. Due to its potential, the extract of P. betle leaves or it compounds can be alternative source of potent natural antibacterial agents for aquaculture disease management. PMID- 29022998 TI - Synthesis, Characterization and Antimicrobial Activities of Copper Derivatives of NHC-II Complexes. AB - BACKGROUND: Caffeine, 1, 3, 7-trimethylxanthine is one of the xanthine derivatives that are for the most part utilized as a part of solutions as diuretics. The Cu (II) complexes have been synthesized from the N-heterocyclic carbene ligands. MATERIALS AND METHODS: The Cu (II) NHC complexes were characterized using analytical and spectral techniques. Antibacterial and antifungal activities of the Cu (II) NHC complexes were determined using the reported techniques. The SOD activity was assayed using nitrobluetetrazolium as O2 scavenger. RESULTS: The X-band ESR spectra of the copper complexes in DMSO solution at 300 and 77 K were recorded and their salient features are reported. The in vitro biological screening effects of the investigated compounds were tested against the bacterial species, Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Proteus vulgaris and Pseudomonas aeruginosa and fungal species, Aspergillus niger, Rhizopus stolonifer, Aspergillus flavus, Rhizoctonia bataicola and Candida albicans by serial dilution method. CONCLUSION: The Cu (II) complexes exhibit square planar geometry. A comparative study of inhibition values of the individual metals and their complexes indicate that the complexes exhibit higher antimicrobial activity than the individual metals. Superoxide dismutase and reducing power activities of the copper complexes have also been studied. Depending on the molecular structure, the Cu (II) NHC complex possess promising SOD mimetic activities. Further we are trying to explore more biological properties of Cu (II) NHC complexes in vitro and in vivo. PMID- 29022999 TI - Effects of Selenium Application on Plant Growth and Some Quality Parameters in Peanut (Arachis hypogaea). AB - BACKGROUND AND OBJECTIVE: Selenium (Se) is an essential plant micronutrient and has been repetedly shown to enhance crop growth and crop tolerance to abiotic stresses when applied in trace amounts. However, physiological responses of different plants vary significantly to the Se fertilizer application. The aim of this study was to investigate the effect of Se application on yield and quality parameters of peanut under field conditions. MATERIALS AND METHODS: A pot experiment was conducted where Se fertilizer was applied (i) To soil at 5 different doses, (ii) As folier fertilizer or (iii) Via seed soaking at 4 different doses. Two years field experiments were conducted under East Mediterranean conditions of Turkey. RESULTS: The yields were significantly increased by all types of Se applications. The highest yield (6130 kg ha-1) was obtained from foliar applications made 40 days after flowering. Increasing doses of Se increased 100 grain weight but oil, protein and nitrogen content of grains were not affected. CONCLUSION: Two years experiment clearly showed that external Se supply to peanut (all methods tested) increased yield formation in East Mediterranean conditions of Turkey. Here, particularly foliar application (3% sodium selenite) of Se 40 after flowering seems to be most effective way for its application. PMID- 29023000 TI - Application of Response Surface Methodology for Optimization of Extracellular Glucoamylase Production by Candida guilliermondii. AB - OBJECTIVE: Glucoamylase is among the most important enzymes in biotechnology. The present study aims to determine better conditions for growth and glucoamylase production by Candida guilliermondii and to reduce the overall cost of the medium using Box-Behnken design with one central point and response surface methodology. METHODOLOGY: Box-Behnken factorial design based on three levels was carried out to obtain optimal medium combination of five independent variables such as initial pH, soluble starch, CH4N2O, yeast extract and MgSO4. Forty one randomized mediums were incubated in flask on a rotary shaker at 105 rpm for 72 h at 30 degrees C. RESULTS: The production of biomass was found to be pH and starch dependent, maximum production when the starch concentration was 8 g L-1 and the initial pH was 6, while maximum glucoamylase production was found at 6.5 of initial pH, 4 g L-1 yeast extract and 6 g L-1 starch, whereas yeast extract and urea were highly significant, but interacted negatively. Box-Behnken factorial design used for the analysis of treatment combinations gave a second-order polynomial regression model with R2 = 0.976 for Biomass and R2 = 0.981 for glucoamylase. CONCLUSION: The final biomass and glucoamylase activity obtained was very close to the calculated parameters according to the p-values (p<0.001), the predicted optimal parameters were confirmed and provides a basis for further studies in baking additives and in the valuation of starch waste products. PMID- 29023001 TI - Evaluation of a New and Rapid Serologic Test for Detecting Brucellosis: Brucella Coombs Gel Test. AB - BACKGROUND: Many serological tests have been used for the diagnosis of human brucellosis. A new serological method is identified as Brucella Coombs gel test based on the principle of centrifugation gel system similar to the gel system used in blood group determination. In this system, if Brucella antibodies were present in the serum, antigen and antibody would remain as a pink complex on the gel. Otherwise, the pink Brucella antigens would precipitate at the bottom of the gel card system. OBJECTIVE: In this study, we aimed to compare the Brucella Coombs gel test, a new, rapid screen and titration method for detection of non agglutinating IgG with the Brucella Coombs test. MATERIALS AND METHODS: For this study, a total of 88 serum samples were obtained from 45 healthy persons and 43 individuals who had clinical signs and symptoms of brucellosis. For each specimen, Rose Bengal test, standard agglutination test, Coombs test and Brucella Coombs gel test were carried out. RESULTS: Sensitivity and specificity of Brucella Coombs gel test were found as 100.0 and 82.2%, respectively. CONCLUSION: Brucella Coombs gel test can be used as a screening test with high sensitivity. By the help of pink Brucella antigen precipitation, the tests' evaluation is simple and objective. In addition, determination of Brucella antibody by rapid titration offers another important advantage. PMID- 29023002 TI - Dynamics of Huanglongbing-associated Bacterium Candidatus Liberibacter asiaticus in Citrus aurantifolia Swingle (Mexican Lime). AB - BACKGROUND: The bacterial disease citrus huanglongbing (HLB), associated with "Candidatus Liberibacter asiaticus" (C.Las) has severely impacted the citrus industry, causing a significant reduction in production and fruit quality. In the present study, it was monitored the C.Las population dynamics in symptomatic, HLB positive Mexican lime trees (Citrus aurantifolia Swingle) in a tropical, citrus producing area of Mexico. The objective of this study was to identify the dynamics of the population of huanglongbing-associated bacterium Candidatus Liberibacter asiaticus and its insect vector in Citrus aurantifolia Swingle (Mexican lime). MATERIALS AND METHODS: Leaf samples were collected every 2 months over a period of 26 months for quantification of bacterial titers and young and mature leaves were collected in each season to determine preferential sites of bacterial accumulation. The proportion of living and dead bacterial cells could be determined through the use of quantitative real-time PCR in the presence of ethidium monoazide (EMA-qPCR). RESULTS: It was observed a lower bacterial titer at high temperatures in the infected trees relative to titers in mild weather, despite a higher accumulation of the insect vector Diaphorina citri in these conditions. This study also revealed seasonal fluctuations in the titers of bacteria in mature leaves when compared to young leaves. No statistically significant correlation between any meteorological variable, C.Las concentration and D. citri population could be drawn. CONCLUSION: Although, HLB management strategies have focused on vector control, host tree phenology may be important. The evaluation of citrus phenology, C.Las concentration, ACP population and environmental conditions provides insights into the cyclical, seasonal variations of both the HLB pathogen and its vector. These findings should help in the design of integrative HLB control strategies that take into account the accumulation of the pathogen and the presence of its vector. PMID- 29023003 TI - Antioxidant and Biological Activities of Proteinaceous Extract from Algerian Glycine max Plant. AB - OBJECTIVE: Glycine max is commonly used in Algeria for treatment of anemia deficiency and osteoporosis, it ranks first in terms of vegetal proteins. The experiment was aimed at characterizing the proteinaceous Glycine max extract and evaluating its antioxidant, biological and hematological potential. METHODOLOGY: Extraction of proteinaceous materials from Glycine max plant was undertaken using water and n-hexane as extracting media. The isolation of proteins from the crude materials was done, providing the use of ammonium sulfate. The Glycine max proteins were characterized by UV-visible and FT-IR spectroscopy and analyzed by SEM micrograph and x-ray diffraction (XRD). Rheological parameters G' and G'' were assessed. The isolated proteins were tested for their antioxidant, antimicrobial and hemagglutination activities. RESULTS: There was a gelling effect of the protein extract which can be used as an alternative in principally made vaccines with its microbiological and antifungal activities. CONCLUSION: The proteinaceous extract from Algerian Glycine max would have a potential use in biomedical application. PMID- 29023004 TI - Selection of Drought Tolerant Maize Hybrids Using Path Coefficient Analysis and Selection Index. AB - BACKGROUND: In drought-prone environments, direct selection for yield is not adequate because of the variable environment and genotype x environment interaction. Therefore, the use of secondary traits in addition to yield has been suggested. The relative usefulness of secondary traits as indirect selection criteria for maize grain yield is determined by the magnitudes of their genetic variance, heritability and genetic correlation with the grain yield. MATERIALS AND METHODS: Forty eight testcross hybrids derived from lines with different genetic background and geographical origins plus 7 checks were evaluated in both well-watered and water-stressed conditions over two years for grain yield and secondary traits to determine the most appropriate secondary traits and select drought tolerant hybrids. RESULTS: Study found that broad-sense heritability of grain yield and Ear Per Plant (EPP) increased under drought stress. Ear aspect (EASP) and ear height (EHT) had larger correlation coefficients and direct effect on grain yield but in opposite direction, negative and positive respectively. Traits like, EPP, Tassel Size (TS) and Plant Recovery (PR) contributed to increase yield via EASP by a large negative indirect effect. Under drought stress, EHT had positive and high direct effect and negative indirect effect via plant height on grain yield indicating that the ratio between ear and plant heights (R-EPH) was associated to grain yield. CONCLUSION: Path coefficient analysis showed that traits EPP, TS, PR, EASP, R-EPH were important secondary traits in the present experiment. These traits were used in a selection index to classify hybrids according to their performance under drought. The selection procedure included also a Relative Decrease in Yield (RDY) index. Some secondary traits reported as significant selection criteria for selection under drought stress were not finally established in the present study. This is because the relationship between grain and secondary traits can be affected by various factors including germplasm, environment and applied statistical analysis. Therefore, different traits and selection procedure should be applied in the selection process of drought tolerant genotypes for diverse genetic materials and growing conditions. PMID- 29023005 TI - Study on Carapace Width Growth Band Counts Relationship of Orange Mud Crab, Scylla olivacea (Herbst, 1796) from Terengganu Coastal Waters, Malaysia. AB - BACKGROUND: Orange mud crab Scylla olivacea is one of the most important fisheries resources. A new development in ageing technique of crustaceans has been introduced. The detection of growth band deposited in hard structure of gastric mill in the cardiac stomach are found retained after moulting process can be used as age indicator and growth estimation. OBJECTIVE: This study was carried out to determine the comparison between carapace width and growth band count of S. olivacea in Malaysia. MATERIALS AND METHODS: Samples were collected from Setiu Wetlands, Terengganu, Malaysia from February until August, 2016. Samples were categorized based on their morphological measurements. The mesocardiac and zygocardiac ossicles in the gastric mill of S. olivacea was dissected out and preserved in solutions and underwent a cross sectioning process. A total of 76 of wild S. olivacea ranging from 6.56 to 12.84 cm in carapace width were analysed. The growth band counts were examined for each individual and ranging from 1 to 3 band counts. RESULTS: A positive linear relation was observed between CW and GBC with r2 = 0.5178, p<0.01. Overall, there was a strong, positive correlation between CW and GBC. Increase in CW were correlated with increases in GBC respectively for this species. CONCLUSION: Therefore, the carapace width, growth band counts and body weight can be used to improve data on growth, recruitment, maturation and mortality. Thus, this study would able to improve new ageing technique and contribute greatly to improve the conservation and management of S. olivacea in Setiu Wetlands, Terengganu, Malaysia. PMID- 29023006 TI - Expression Profile of Stress-responsive Arabidopsis thaliana miRNAs and their Target Genes in Response to Inoculation with Pectobacterium carotovorum subsp. carotovorum. AB - BACKGROUND: Pectobacterium carotovorum subsp. carotovorum (Pcc) is a soft rot bacterium which upon entry into the plant macerates plant tissues by producing plant cell wall degrading enzymes. It has a wide host range which includes carrot, potato, tomato, leafy greens, squash and other cucurbits, onion, green peppers and cassava. During plant-microbe interactions, one of the ways of plant response to pathogen infection is through the small RNA silencing mechanism. Under pathogen attack the plant utilizes microRNAs to regulate gene expression by means of mediating gene silencing at transcriptional and post-transcriptional level. This study aims to assess for the first time, the expression profile of some stress-responsive miRNA and differential expression pattern of their target genes in Arabidopsis thaliana inoculated with Pcc. MATERIALS AND METHODS: Leaves of five weeks old Arabidopsis thaliana plants were infected with Pcc and the quantitative real time-PCR, was used to investigate after 0, 24, 48 and 72 h post infection, the expression profiling of the stress-responsive miRNAs which include: miR156, miR159, miR169, miR393, miR396 miR398, miR399 and miR408 along with their target genes which include: Squamosa promoter-binding-like protein, myb domain protein 101, nuclear factor Y subunit A8, concanavalin A-like lectin protein kinase, growth regulating factor 4, copper superoxide dismutase, ubiquitin-protein ligase and plantacyanin respectively. RESULTS: The findings showed that the overexpression of 6 miRNAs at 24, 48 and 72 h after infection resulted in the repression of their target genes and the expression of 2 miRNAs didn't affect their target genes. CONCLUSION: These results provide the first indication of the miRNAs role in response to the infection of Pcc in A. thaliana and open new vistas for a better understanding of miRNA regulation of plant response to Pcc. PMID- 29023007 TI - Optimization of Culture Medium for the Growth of Candida sp. and Blastobotrys sp. as Starter Culture in Fermentation of Cocoa Beans (Theobroma cacao) Using Response Surface Methodology (RSM). AB - BACKGROUND AND OBJECTIVE: Inoculation of starter culture in cocoa bean fermentation produces consistent, predictable and high quality of fermented cocoa beans. It is important to produce healthy inoculum in cocoa bean fermentation for better fermented products. Inoculum could minimize the length of the lag phase in fermentation. The purpose of this study was to optimize the component of culture medium for the maximum cultivation of Candida sp. and Blastobotrys sp. MATERIALS AND METHODS: Molasses and yeast extract were chosen as medium composition and Response Surface Methodology (RSM) was then employed to optimize the molasses and yeast extract. RESULTS: Maximum growth of Candida sp. (7.63 log CFU mL-1) and Blastobotrys sp. (8.30 log CFU mL-1) were obtained from the fermentation. Optimum culture media for the growth of Candida sp., consist of 10% (w/v) molasses and 2% (w/v) yeast extract, while for Blastobotrys sp., were 1.94% (w/v) molasses and 2% (w/v) yeast extract. CONCLUSION: This study shows that culture medium consists of molasses and yeast extract were able to produce maximum growth of Candida sp. and Blastobotrys sp., as a starter culture for cocoa bean fermentation. PMID- 29023008 TI - Aphid Species Affect Foraging Behavior of Coccinella septempunctata (Coccinellidae: Coleoptera). AB - BACKGROUND: Flowers are admirable in scenic good looks and artistic beautification. These are also playing necessary roles in therapeutic preparations. Aphid is an important sucking pest of various flowers in ornamental territories and it is generally controlled by predators, so it was necessary to evaluate which aphid species affect the predator more or less. MATERIALS AND METHODS: Biocontrol agent Coccinella septempunctata was used against cosmos aphid (Aphis spiraecola, rose aphid (Macrosiphum rosea), gul e ashrafi aphid (Aphis fabae), kaner aphid (Aphis nerii), chandni aphid (Sitobion avenae), dahlia aphid (Myzus persicae) and annual chrysanthemum aphid (Macrosiphoniella sanborni). RESULTS: The grub of C. septempunctata consumed 283.8+/-9.04 M. rosea, 487.7+/ 12.6 M. sanborni, 432.75+/-16.02 A. spiraecola, 478.2+/-8.07 A. fabae, 552.3+/ 9.04 M. persicae, 142+/-1.32 A. nerii and 498.5+/-13.09 S. avenae in its whole larval life. The M. persicae and M. rosea consuming grubs showed 100% adult emergence while, M. sanborni, A. spiraecola, A. fabae and S. avenae showed 96.58, 89.02, 94.78 and 75.45% adult emergence, respectively. CONCLUSION: The C. septempunctata has significant predatory potential against A. spiraecola, M. rosea, A. fabae, S. avenae, M. persicae and M. sanborni except A. nerii. Thus, further studies are needed to find out alternate predator to control A. nerii on ornamentals. PMID- 29023009 TI - Myogenic Satellite Cells: Biological Milieu and Possible Clinical Applications. AB - Adult skeletal muscle is a post-mitotic terminally differentiated tissue that possesses an immense potential for regeneration after injury. This regeneration can be achieved by adult stem cells named satellite cells that inhabit the muscular tissue. These cells were first identified in 1961 and were described as being wedged between the plasma membrane of the muscle fiber and the surrounding basement membrane. Since their discovery, many researchers investigated their embryological origin and the exact role they play in muscle regeneration and repair. Under normal conditions, satellite cells are retained in a quiescent state and when required, these cells are activated to proliferate and differentiate to repair pre-existing muscle fibers or to a lesser extent fuse with each other to form new myofibers. During skeletal muscle regeneration, satellite cell actions are regulated through a cascade of complex signaling pathways that are influenced by multiple extrinsic factors within the satellite cell micro-environment. Here, the basic concepts were studied about satellite cells, their development, function, distribution and the different cellular and molecular mechanisms that regulate these cells. The recent findings about some of their clinical applications and potential therapeutic use were also discussed. PMID- 29023010 TI - Bio-controlling Effect of Leaf Extract of Tagetes patula L. (Marigold) on Growth Parameters and Diseases of Tomato. AB - BACKGROUND: The genus Tagetes (Asteraceae) is native to Americas but some of its members (in particular T. erecta and T. patula) commonly known as marigolds were naturalized in the old world (India, North Africa and Europe) as early as in 16th century. The flowers of French marigold (Tagetes patula L.) are widely used in folk medicine, in particular for treating inflammation-related disorders. MATERIALS AND METHODS: This study investigated the potential use of marigold (Tagetes patula L.) flower aqueous flower extract by spaying method on tomato plants on a weekly basis and the data of growth, yield and disease of tomato pants were observed from 10th day onwards under field condition. RESULTS: The marigold flower extract showed significant increase in shoot height, number of branches, number of leaves, number of buds, number of flowers and number of fruits of tomato plant, while significant reduction in various diseases of tomato plants over control at probability level ***p<0.001. The percentage of reduction of disease was calculated after the spray of marigold flower aqueous extract on plants. The marigold flower extract was found effectively in controlling canker (62.82%), early blight (61.53%), wilt (18.42%), fruit spot (27.41%), blossom end rot (50.43%) and sun scald (26.44%) in comparison to controls under field condition. CONCLUSION: The findings are in line with the bio-controlling properties of marigold preparations as bio-pesticide confirmed in growth and yield of tomato plants. Thus, marigold can contribute in reducing use of chemical pesticides and act as a good alternative to synthetic pesticides. PMID- 29023011 TI - Effect of AgNO3 and BAP on Root as a Novel Explant in Date Palm (Phoenix dactylifera cv. Medjool) Somatic Embryogenesis. AB - BACKGROUND AND OBJECTIVE: Somatic embryogenesis techniques are used for cloning a wide range of varieties of date palms around the world. The aim of the present study was to develop an efficient method with the lowest cost and the greatest potential to obtain in vitro plantlets of date palm cv. Medjool. Also, produce embryogenic callus and somatic embryos without using 2,4-dichlorophenoxyacetic acid (2,4-D). METHODOLOGY: In this study, produced plantlets through somatic embryogenesis were used in vitro roots as explant cultured on Murashige and Skoog (MS) media containing three level of Silver Nitrate (AgNO3) (0, 3 and 6 mg L-1) plus two level of 6-benzylaminopurine (BAP) (0 and 2 mg L-1) plus 0.1 mg L-1 1 naphthylacetic acid (NAA) for callus induction. After 12 weeks of culture, callus induction and after 16 weeks, production of embryogenic callus and embryos were occurred from root explants. RESULTS: According to the results, medium containing 2 mg L-1 BAP and 3 mg L-1 silver nitrate+0.1 mg L-1 NAA showed the highest amount of embryogenic callus fresh weight (1.38 g). This treatment also cause the highest number and length of embryos by production of 90.04 embryogenic callus with length of 11.18 mm. On the other hand, shoots were appeared from germinated embryos and white roots began to appear within 8 weeks. Medium contains 3 mg L-1 BAP and 0.1 mg L-1 NAA with average of 12.27 cm shoot length and 15.48 cm root length was the best. Control treatment had the lowest average shoot (3.71 cm) and root (5.03 cm) length. CONCLUSION: This study showed that certain concentration of silver nitrate and BAP has stimulating effect on growth of produced embryonic callus from root segments of Medjool cultivar of date palm. PMID- 29023012 TI - Levels of Blood Glucose and Insulin Expression of Beta-cells in Streptozotocin induced Diabetic Rats Treated with Ethanolic Extract of Artocarpus altilis Leaves and GABA. AB - BACKGROUND AND OBJECTIVE: Information about the Artocarpus altilis leaf as an antidiabetic associated with the active compounds Gamma Amino Butyric Acid (GABA) is still limited. This study was conducted to determine the effects of ethanolic extract of A. altilis leaves decoction and GABA on blood glucose levels and insulin expression of beta-cells in streptozotocin-induced diabetic rats. MATERIAL AND METHODS: This study was done by using completely randomized design and male Sprague Dewley rats. The rats were devided into normal control group and diabetic rats groups. Levels of bood glucose were measured using strip rapid test. The insulin expression in beta-cells was assessed using immunohistochemistry. Quantitative data were analyzed using ANOVA at 5% confidence level. RESULTS: The result indicated that 50 mg k-1 b.wt., GABA, 400 and 800 mg k-1 b.wt., ethanolic extract of A. altilis leaves decreased the level of blood glucose and increased the insulin expression in pancreas beta-cells. CONCLUSION: The GABA and ethanolic extract of A. altilis leaves with a minimum dose of 400 mg k-1 b.wt., can be used as an antidiabetic. Pancreas is the target organ was affected by GABA and A. altilis leaves as antidiabetic agents. Results of this study may support the development of research on the potency of GABA in natural materials as antidiabetic particularly type 1 diabetes. PMID- 29023013 TI - Anti-proliferation and Apoptosis Induction of Aqueous Leaf Extract of Carica papaya L. on Human Breast Cancer Cells MCF-7. AB - BACKGROUND AND OBJECTIVE: Breast cancer is the most frequently diagnosed cancer in women. Chemotherapy is the main method of breast cancer treatment but there are side effects. Carica papaya leaves is vegetable foods consumed by most people of Indonesia have potential as anticancer. The aim of this study was to investigate anti-proliferative and apoptotic induced effect of aqueous papaya leaves extracts on human breast cancer cell lines MCF-7. MATERIALS AND METHODS: Inhibitory on cell proliferation was measured by MTT assay while apoptosis induction was measured using Annexin V. RESULTS: The results showed that papaya leaf can inhibit the proliferation of human breast cancer cells MCF-7 with IC50 in 1319.25 MUg mL-1. The IC50 values of papaya leaf extract was higher than the IC50 value quercetin and doxorubicin. Papaya leaf extract can also induce apoptosis of breast cancer cells MCF-7 about 22.54% for concentration 659.63 MUg mL-1 and about 20.73% for concentration 329.81 MUg mL-1. The percentage of cell apoptosis of papaya leaf extract lower than doxorubicin but higher than quercetin. CONCLUSION: This study indicated that papaya leaf extract have potential as anticancer through mechanism anti-proliferation and apoptosis induction. PMID- 29023014 TI - Influence of Grand Multiparity on the Levels of Insulin, Glucose and HOMA-IR in Comparison with Nulliparity and Primiparity. AB - OBJECTIVE: It is to compare the levels of fasting glucose and insulin as well as insulin resistance in grand multiparas with primiparity and nulliparity. METHODOLOGY: Fasting blood samples were collected from 100 non-pregnant ladies as control group, 100 primiparity pregnant women and 100 grand multiparity pregnant women. Glucose (FBS) and insulin (FSI) concentrations were measured by Hitachi 912 full automated Chemistry Analyzer (Roche Diagnostics, Germany) as manufacturer procedure. Insulin resistance was calculated following the formula: FBG (mg dL-1)*FSI (MUU mL-1)/405. RESULTS: This study found a significant reduction in glucose level in primiparity when compared to control group but it was increased significantly in multiparity comparing to primiparity and control. Insulin level showed significant high concentrations in pregnant women and increased significantly in grand multiparas comparing to primiparas and controls. As a result of that, HOMA-IR was increased significantly by increasing of parity. Also, there was a significant increase in fasting insulin and a decrease in insulin sensitivity with parity with association to age and obesity. CONCLUSION: Grand multiparity is associated with an increased risk of subsequent clinical insulin resistance (HOMA-IR). PMID- 29023016 TI - Indigenous Halomonas spp., the Potential Nitrifying Bacteria for Saline Ammonium Waste Water Treatment. AB - BACKGROUND AND OBJECTIVE: Toxic nitrogen compounds are one cause decreasing of shrimp production and water pollution. Indigenous Halomonas spp., isolated from Pacific white shrimp farm are benefitted for saline ammonium waste water treatment. This study aimed to isolate the heterotrophic-halophilic Halomonas spp. and investigate their ammonium removal efficiency. MATERIALS AND METHODS: Halomonas spp., were isolated by culturing of samples collected from shrimp farm into modified Pep-Beef-AOM medium. Ammonium converting ability was tested and monitored by nitrite reagent. Ammonium removal efficiency was measured by the standard colorimetric method. Identification and classification of Halomonas spp., were studied by morphological, physiological and biochemical characteristics as well as molecular information. RESULTS: There were 5 strains of heterotrophic-halophilic nitrifying bacteria including SKNB2, SKNB4, SKNB17, SKNB20 and SKNB22 were isolated. The identification result based on 16S rRNA sequence analysis indicated that all 5 strains were Halomonas spp., with sequence similarity values of 91-99 %. Ammonium removal efficiency of all strains showed a range of 23-71%. The production of nitrite was low detected of 0.01-0.15 mg-N L 1, while the amount of nitrate was almost undetectable. CONCLUSION: This might suggest that the indigenous Halomonas spp., as nitrifying bacteria involved biological nitrification process for decreasing and transforming of ammonia. Due to being heterotrophic, halophilic and ammonium removing bacteria, these Halomonas spp., could be developed for use in treatment of saline ammonium waste water. PMID- 29023015 TI - Evaluation of Growth Performances of Some Locally Farmed Maize (Zea mays L.) in Cross River State, Nigeria under Different Concentrations of Silicon. AB - OBJECTIVE: Growth performances of four maize varieties (91 SUWANI, TZL COMP 4, DT STR Y SYN 2 and IWO SYN C2) were investigated at four levels of silicon concentration (0, 2500, 5000 and 7500 mg, with 0 mg as control). METHODOLOGY: Viable seeds were planted in polythene bags (64 bags) containing soil in a randomized complete block design (a 4*4 factorial experiment) with four replications. Plant height, stem girth, leaf area and leaf number were evaluated at 4, 6, 8 and 10 weeks after planting. RESULTS: There was significant difference (p<=0.05) for all growth parameters and across varieties. Highest mean plant height (144.58 cm) and mean number of leaves (12.23) were recorded at 5000 mg silicon concentration in all varieties, while stem girth and stem biomass were highest in TZL COMP4 (3.42 cm, 38.44 dry weight g-1). CONCLUSION: Based on these results, 5000 mg silicon concentration is recommended as nutrient supplement to enhance maize production. PMID- 29023017 TI - Effect of Temporal Pattern of Radiation in Intensity Modulated Radiotherapy on Cell Cycle Progression and Apoptosis of ACHN Renal Cell Carcinoma Cell Line. AB - BACKGROUND AND OBJECTIVE: The existence of a hypersensitive radiation response to doses below 1 Gy is well established for many normal and tumor cell lines. The aim of this study was to ascertain the impact of temporal pattern modeling IMRT on survival, cell cycle and apoptosis of human RCC cell line ACHN, so as to provide radiobiological basis for optimizing IMRT plans for this disease. MATERIALS AND METHODS: The ACHN renal cell carcinoma cell line was used in this study. Impact of the triangle, V, small-large or large-small temporal patterns in the presence and absence of threshold dose of hyper-radiosensitivity at the beginning of patterns were studied using soft agarclonogenic assays. Cell cycle and apoptosis analysis were performed after irradiation with the temporal patterns. RESULTS: For triangle and small-large dose sequences, survival fraction was significantly reduced after irradiation with or without threshold dose of hyper-radiosensitivity at the beginning of the patterns. In all of the dose patterns, cell cycle distributions and the percentage of apoptotic cells at 24 h after irradiation with or without priming dose of hyper-radiosensitivity showed no significant difference. However, apoptotic cells were increased when beams with the smallest dose applied at the beginning of dose pattern like triangle and small-large dose sequence. CONCLUSION: These data show that the biologic effects of single fraction may differ in clinical settings depending on the size and sequence of the partial fractions. Doses at the beginning but not at the end of sequences may change cytotoxicity effects of radiation. PMID- 29023018 TI - Akt Signal Transduction Pathways and Nuclear Factor-kappa B (NF-kappaB) Transcription as a Molecular Target of Oral Tongue Squamous Cell Carcinoma (SP C1) Using Papua's Anthill Plant ( Myrmecodia pendans ). AB - BACKGROUND AND OBJECTIVE: Squamous cell carcinoma is a malignant tumor derived from epithelial tissue with cell structure group, capable to infiltrate through the bloodstream and lymphatic tissue, spreading throughout the body. This study aim to complete theoretical foundation of flavonoid compound from anthill plant (Myrmecodia pendans) which contribute in growing cell line oral tongue squamous cell carcinoma through proliferation inhibition, inhibition mechanism transduction Akt signal and NF-kappaB in tongue cancer cell Supri's-clone (SP C1). Application benefit to explore potential fractionation anthill plant use herbal ingredients for chemo protective therapy. MATERIALS AND METHODS: This whole study conducted with experiment laboratorium method utilized tongue cancer human cell SP-C1. This study consist 2 steps, first to determinate, extraction and fractionation anthill plant and carry out tonicity test to get flavonoid fraction from anthill plant which has anticancer potential against tongue cancer cell SP-C1. The second stage held with invasion inhibition test, proliferation and inhibition test against protein Akt expression and NF-kappaB in tongue cancer cell SP-C1. The barriers to proliferation through the test of MTT [3-(4,5 dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay, barriers to invasion through Boyden chamber assay and the membrane polycarbonate, ELISA analysis and Western blotting analysis on the obstacle Akt signal transduction pathways and transcription factor of nuclear factor-kappa B (NF-kappaB). Data analysis conducted with 2 way ANOVA followed with LSD post hoc test with significance is set on 95%. Pearson correlation conduct to find strong relationship intervariable. RESULTS: This study showed that the average cell growth inhibition SP-C1 based on the time and concentration using the MTT [3-(4,5 dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay. The resistance of cancer cell in vitro SP-C1. On ELISA testing and Western blotting analysis, inhibiton of protein expression of Akt signal transduction and transcription factor of nuclear factor-kappa B (NF-kappaB) showed increased protein expression was significantly obstacles and prove that the ethyl acetate fraction flavonoid inhibits translocation and activation of transcription pathway NF-kappaB and growth factors that induces the phosphorylation of Akt signal transduction pathway. CONCLUSION: Ethyl acetate fraction flavonoid anthill has antitumor activity in multiple molecular targets transduction pathway including Akt and nuclear factor-kappa B (NF-kappaB) squamous cell carcinoma of the tongue. PMID- 29023019 TI - Stress Levels, Mortality, Intestinal Morphometry and Histomorphology of Chabro Broiler Birds Subjected to Varying Degrees of Post Hatch Delay in Feeding. AB - BACKGROUND AND OBJECTIVE: Kashmir is a part of Jammu and Kashmir State of India where a large chunk of day old chicks are procured from outside the state and these chicks are transported across a distance of hundreds of kilometers over a period of several days. The long distance transport without any access to feed not only subjects the birds to early life stress but also affects their gut morphological development. Therefore, a study was conducted to evaluate the effect of delayed feeding on stress levels, mortality, intestinal morphometry and histomorphology of chabro broiler chicken. MATERIALS AND METHODS: A total of 400 day old chabro chicks were randomly divided into 5 groups, each group comprising of four replicates of 20 birds. Chicks allotted to group-1 (G 1) were offered feed at hatchery itself whereas feeding in groups G 2, G 3, G 4 and G 5 were initiated at the farm after the delay of 12, 24, 48 and 72 h, respectively. RESULTS: The results revealed that the heterophil count showed a steady increase from G 1-G 5 and significantly (p<0.05) higher count was found in G 3, G 4 and G 5 compared to G 1. However, the lymphocyte count showed a steady decrease as delay in feeding increased. H:L ratio followed a regular increase from G 1-G 5 and was significantly (p<0.05) higher in G 3, G 4 and G 5 compared to G 1. An overall mortality of 13% was recorded during the trial and all of it occurred during first 2 weeks. The highest overall mortality of 22.50+/-3.23% was recorded in group G 5 followed by 17.50+/-6.61% in G 4. The villus height of duodenum and jejunum was significantly (p<0.05) higher in G 2, G 3, G 4 and G 5 as compared to G 1. Crypt depth and muscular is thickness of duodenum was significantly (p>0.05) lower in G 4 and G 5 compared to G 1. CONCLUSION: The duration of post hatch feeding delay gradually increased the stress level and mortality of birds and also decreased the length of different segments of small intestine in birds. No adverse effect on histomorphology was observed at the end of trial. Feeding at hatchery itself or feeding during transportation of birds would be a viable strategy to overcome the negative effects of delayed feeding in chicken. PMID- 29023020 TI - Effect of Genetic Polymorphisms in GH/Hpa II and MSTN / Dra I Loci on Body Weight in Friesian Bull Calves. AB - OBJECTIVE: The GH and MSTN gene polymorphisms and their association with body weight were declared in a population of 100 Friesian bull calves. MATERIALS AND METHODS: For DNA extraction, collection of blood samples was carried out from the studied animals. The PCR for GH and MSTN genes yielded fragments of 329 and 1346 bp, respectively. RESULTS: The PCR-HpaII digestion of 329 bp of GH gene revealed three genotypes: AA genotype possess undigested fragment (329 bp), AB genotype has three fragments (329, 224 and 105 bp) and BB genotype has two fragments (224 and 105 bp). The GH genotypes incidence and alleles frequency were calculated. For the 100 Friesian bull calves, genotypic frequencies for the AA, AB and BB genotypes were 0.1, 0.78 and 0.12, respectively and the allele frequencies for A and B allele frequencies were 0.49 and 0.51. Statistical analysis revealed that there was a significant effect of GH genotypes on body weight. The AB genotype possessed higher body weight than the other 2 genotypes. Regarding MSTN gene, PCR DraI digestion of 1346 bp fragment was monomorphic; where it yielded four fragments (505, 427, 321 and 93 bp) in all animals under study. CONCLUSION: The outcome of this study is that it highlights the effectiveness of GH/HpaII locus as candidate marker for body weight in cattle rather than MSTN/DraI. PMID- 29023021 TI - Effect of Allogeneic Bone Marrow-mesenchymal Stem Cells (BM-MSCs) to Accelerate Burn Healing of Rat on the Expression of Collagen Type I and Integrin alpha2beta1. AB - BACKGROUND AND OBJECTIVE: Burn is a public health problem, it causes physical disability even death. Treatment of burn wound has been conducted in various ways, but the satisfactory healing has not been provided. Bone marrow-derived mesenchymal stem cells (BM-MSCs) treatment is one of attempt to burn recovery, accelerate wound healing and angiogenesis. This study aimed to investigate the effect of allogeneic BM-MSC treatment on the expression of collagen type I and integrin alpha2beta1 in burn skin tissue of rat observed on day 14. MATERIALS AND METHODS: Twelve Wistar rats divided into two groups, control group (injected with phospate buffer solution) and treatment group (injected with BM-MSC). Rat was anaesthetized with xylazine and ketamine (ratio 1:1), fur of rat's back was shaved and full thickness burn was made by boiling plate in hot water for 30 min and patched on the back for 20 min. The burns were covered by tegaderm film and elastomult haft. Antalgin as an analgetic was injected to rats during observation process. Burns of rat was observed on day 14. In this study one-way analysis of variance test and Tukey as a further test were analyzed. RESULTS: The results showed that the healing time of allogeneic BM-MSC treatment on burn skin tissue rats was faster, the thickness of collagen type I in burn skin tissue of rats was thicker (0.977 MUm) than controls (0.475 MUm) and statistically demonstrated significant differences (p = 0.000). The average percentage of integrin alpha2beta1 expression was higher (2.94%) than control group (2.34%), but the differences were not statistically significant (p = 0.176). CONCLUSION: The study concluded that BM-MSC treatment was able to accelerate the healing process of burns by increasing the thickness of the collagen and the percentage of integrin alpha2beta1, thus accelerated the cell migration involved during wound healing. PMID- 29023022 TI - A Trial Diagnosis of Ascites Syndrome in Broiler Chickens. AB - BACKGROUND: Ascites syndrome is currently a serious disease issue for the global chicken industry. Ascites syndrome is a metabolic disorder frequently found in fast growing broilers including abdominal distention and standing fluid collection in chicken abdomen. It is one of the most common nutrition metabolic disorders. MATERIALS AND METHODS: In this study, the clinical diagnosis technology of broiler ascites symptoms mainly included the trial inquiry of feeders and administrators, local observation, detection of farm gas and faeces and pathological autopsy. RESULTS: The study investigated the case of broiler ascites syndrome of local commercial broiler chickens at the age of 4-5 weeks to reduce outburst of ascites syndrome in broiler chickens. Through the trial clinical diagnosis of broiler ascites symptoms and pathological autopsy and observation, it came to the definite diagnosis of broiler ascites. Subsequent investigation found that the rearing houses were closed and sealed with poor ventilation and a high breeding density and much ammonia gas. CONCLUSION: Under the comprehensive management and drug treatments, there were 800 chickens found ill and later came back to normal from illness after the treatments, except for the death of 38 sick chickens. The appetite and drink of broiler chicken came to normal gradually. PMID- 29023023 TI - Isolation, Purification and Characterization of Antimicrobial Agent Antagonistic to Escherichia coli ATCC 10536 Produced by Bacillus pumilus SAFR-032 Isolated from the Soil of Unaizah, Al Qassim Province of Saudi Arabia. AB - BACKGROUND: Escherichia coli is one of the most common pathogenic bacteria, which cause urinary tract infections in infants as well as in adult human beings. Due to the emergence of antibiotic resistance in E. coli, there is a great demand of new antimicrobial agent for the treatment of infections caused by such E. coli. This study aims to isolate, identify and characterize the native soil-bacterial strains predominate in the soil of Unaizah city, which produce antimicrobial agent antagonistic to E. coli ATCC 10536, followed by isolation, purification and characterization of antimicrobial agent. MATERIALS AND METHODS: Pour plate, spread plate and 16S rRNA sequence analysis methods were followed for the isolation and identification of soil bacteria. Ammonium sulphate and dialysis (MWCO-8 KD) methods were followed for the isolation and partial purification of antimicrobial agent from the cell free broths. The characterization of antimicrobial agent was carried out by determining the minimum inhibitory concentration and effects of temperature and pH on the antimicrobial stability. RESULTS: Out of the twenty five soil samples, only one soil-bacterial strain was found to produce antimicrobial agent antagonistic to E. coli ATCC 10536. The isolated soil bacterium was identified as Bacillus pumilus SAFR-032. The soil isolate was characterized and results suggest that 30 degrees C temperature and pH 7.0 were the optimum growth parameters and soybean casein digest broth was the best fermentation medium, whereas the highest production of antimicrobial agent was at 35 degrees C temperature, pH 7.0, shaking at 150-220 rpm and at 60th h of incubation. The maximum yield of antimicrobial agent was obtained at 60% of (NH 4) 2SO 4. The results of characterization of antimicrobial agent suggest that the maximum and minimum antimicrobial activities were at pH 3.0 and 8.0, respectively, whereas antimicrobial activity was unaffected by temperature. The antimicrobial agent was highly stable at varying range of temperature 50-120 degrees C. Minimum inhibitory concentration of antimicrobial agent was found to be 64 MUg mL -1. CONCLUSION: In conclusion, this study might be a great endeavor for the healthcare industry in order to treatment of different infections caused by E. coli and that warrants further investigations to fully standardized and establish the antimicrobial profile of effect(s) of this isolate. PMID- 29023024 TI - Diversity of Butterflies (Lepidoptera) in Manembo-Nembo Wildlife Reserve, North Sulawesi, Indonesia. AB - BACKGROUND AND OBJECTIVE: The degradation of a habitat will affect the population of butterflies living in it. This study aims to analyse the diversity of butterflies in the area of Manembo-Nembo Wildlife Reserve, North Sulawesi. MATERIALS AND METHODS: Employing purposive sampling, the study was conducted for five months. The collection of butterflies was done by using the sweeping technique, following the transect line applied randomly along 1000 m to three types of habitat (the primary forest, riverside in the forest and agricultural land). The species diversity was determined by using diversity index (Shannon Wiener). RESULTS: The study identified 4 families, 44 species and 748 individual butterflies. Nymphalidae was a family predominantly found (71.12%), while the species mostly found was Ideopsis juventa tontoliensis (10.16%). Abundance (76.50), richness (20.25), diversity (2.66) and species evenness (0.88) were mostly found in riverside habitats in the forest, while the lowest was found in the primary forest. The similarities of butterfly communities in the different types of habitats indicate that the highest similarity index of butterfly communities is in the habitats of the primary forest and riverside in the forest wi a value of 80%. CONCLUSION: The highest diversity of butterflies in all types of habitats found in riverside. MAIN CONCLUSION: The high diversity of butterflies in the river is strongly influenced by the presence of vegetation as food and host plants of butterflies and this habitat should be conserved for the survival of the butterfly in a wildlife reserve Manembo-Nembo, North Sulawesi. It is expected that the results of this study could become important data of the diversity of butterflies and effects of changes of habitats on the diversity of butterflies in Manembo-Nembo Wildlife Reserve, North Sulawesi. PMID- 29023025 TI - Hypoglycemic and Hypolipidemic Effects of Seed Extract from Antidesma bunius (L.) Spreng in Streptozotocin-induced Diabetic Rats. AB - BACKGROUND: Antidesma bunius (L.) Spreng has been reported to possess various beneficial medicinal properties. Scientific information about this plant is limited. This study was therefore, designed to determine hypoglycaemic and hypolipidemic effects of ethanol seed extract from A. bunius (ABSE). Antioxidant activity and also acute toxicity were conducted. METHODOLOGY: The hypoglycaemic and hypolipidemic effects were studied by oral giving ABSE at a dose of 250 mg kg -1 to streptozotocin-induced diabetic rats daily for 6 weeks. Antioxidant activity was studied using DPPH assay. The ABSE at the doses of 500, 1000, 1500 and 2000 mg kg -1 were employed in the acute toxicity study. RESULTS: The results revealed that ABSE significantly (p<0.05) reduced the blood glucose level and recovered the pathology of hematological values, but significantly (p<0.05) increased the body weight and slightly increased serum insulin of the diabetic rats. However, ABSE recovered pathology of hematological values, but affected renal and hepatic functions in the treated rats by producing an alteration of creatinine, albumin, total protein, BUN and ALP. Interestingly, ABSE increased WBC and HDL, but reduced CHOL, LDL and TG both in normal and diabetic ABSE treated rats. The ABSE possessed relatively low antioxidant activity with IC50 of 2174+/-14.24 mg mL -1 compared to vitamin C (1.48+/-0.07 MUg mL -1). Fortunately, ABSE did not produce any symptoms of acute toxicity and mortality in the rats. CONCLUSION: The ethanol seed extract from A. bunius possesses hypoglycemic and hypolipidemic effects. The ABSE also recovered the pathology of the hematology but may cause renal dysfunction in the diabetic rats. The hypoglycemic and hypolipidemic effects are likely due to its antioxidant and insulin secretion activities. PMID- 29023026 TI - Effect of Water Salinity on the External Morphology of Ovarian Maturation Stages of Orange Mud Crab, Scylla olivacea (Herbst, 1796) in Captivity. AB - BACKGROUND AND OBJECTIVE: Mud crab from the genus Scylla are considered as one of the most demanded seafood items nowadays as their flesh has high quality, tasty and higher growth rate thus support and boosted expansion in aquaculture sector especially in Malaysia. Present study was designed to focus on the effect of water salinity on the ovarian maturation of orange mud crab, Scylla olivacea based on morphological characteristics. METHODOLOGY: Samples were collected from Setiu wetlands, Terengganu, Malaysia from July-September, 2015. Ovarian maturation of S. olivacea was classified into four stages based on previous study which were: Immature (Stage 1), early mature (Stage 2), late mature (Stage 3) and fully mature (Stage 4). RESULTS: Morphologically as the ovary develop the colouration start to change from translucent or whitish in colour and sometimes creamy to pale yellow, follow by light orange and lastly reddish orange. Stage 1 ovary was translucent and whitish in colour, stage 2 ovary was pale yellow in colour, stage 3 was light orange and stage 4 ovary was reddish orange in colour. Gonad Somatic Index (GSI) of S. olivacea remained low at stage 1 and 2 and began to increase started at stage 3. This present study involved three different salinities treatments, which treatment 1 (10 ppt), treatment 2 (20 ppt) and treatment 3 (30 ppt). Treatment 2 produce the highest number of stage 4 ovarian maturation based on colouration and the highest GSI recorded, follow by treatment 1 and lastly treatment 3. CONCLUSION: This present study proved that salinity does affected the ovarian maturation of S. olivacea in captivity and provides important information regarding the effect of water salinity on ovarian maturation for further studies on reproductive biology of this species. PMID- 29023027 TI - Influence of L-carnitine on the Expression Level of Adipose Tissue miRNAs Related to Weight Changes in Obese Rats. AB - BACKGROUND AND OBJECTIVE: Molecular mechanisms of most anti-obesity drugs are remained to be clear. MicroRNAs that are noncoding RNA molecules supposed to regulate biological processes concomitant to obesity and have attracted a lot of attention to themselves. The miR-27a and miR-143 expression levels in obese and non-obese rats during weight changes and L-carnitine (LC) effects on them was investigated in this study. MATERIALS AND METHODS: In the present study 12 male Wistar rats were randomly divided into normal fat diet and high fat diet groups to develop obesity. After 8 weeks rats were weighted and half of diet induced obese rats were randomly selected to receive 200 mg LC kg -1 b.wt. for 4 weeks. At the end epididymal fat was isolated to investigate expression level of microRNAs by real-time PCR. RESULTS: After 12 weeks, high fat diet in comparison with normal fat diet mediated significant decrease and increase in expression levels of miR-27a and miR-143 , respectively. These changes were modified in groups, which had received LC in a 4 weeks period. Furthermore, rats in this group gained less weight. CONCLUSION: Findings of this study suggest that the changes of microRNAs expression probably play a role in pathogenesis of obesity, might be modulated by means of dietary agents and supplements and modify weight gain trend. PMID- 29023028 TI - Methicillin-resistant Staphylococcus aureus Nasal Carriage Among Patients Admitted at Shaqra General Hospital in Saudi Arabia. AB - BACKGROUND AND OBJECTIVE: Methicillin-resistant Staphylococcus aureus (MRSA) have been causing increasing problems in hospitals and nursing homes worldwide. Limited number of studies in Saudi Arabia has attempted to investigate infection and risk factors associated with nosocomial acquired MRSA. The present study was undertaken to determine the occurrence, prevalence, antibiotic susceptibility pattern and genetic characteristics of MRSA among admitted cases at Shaqra General Hospital (Saudi Arabia). METHODOLOGY: This study was conducted from October, 2014 to March, 2015. Nasal swabs were taken from 220 patients (105 males and 115 females) admitted at Shaqra General Hospital. The isolates were identified as S. aureus based on morphology, Gram stain, catalase test, coagulase test and mannitol salt agar fermentation. Antibiotic susceptibility testing of MRSA was performed with standard disk diffusion method. All methicillin-resistant isolates were examined for the existence of the mecA gene by PCR technique. RESULTS: Of the 220 patients, 90 (40.91%) were found to be nasal carriers of S. aureus. Among these 90 S. aureus isolates, 48 (21.82%) were MRSA. A statistically significant difference was only found for antibiotics usage between those with and without MRSA colonization. Antibiotic susceptibility pattern of isolated MRSA showed high susceptibility to vancomycin, linezolid, rifampicin, teicoplanin, complete resistance to penicillin, ampicillin, oxacillin and cefoxitin and intermediate resistance to amikacin, ciprofloxacin, teicoplanin, tetracycline and vancomycin. CONCLUSION: A high prevalence of multidrug-resistant MRSA nasal carriage was found. The identification of MRSA carriers is a step towards establishing a control policy for MRSA and helps to identify measures needed to reduce colonization pressure. PMID- 29023029 TI - Lysine and Glutamic Acids as the End Products of Multi-response of Optimized Fermented Medium by Mucor mucedo KP736529. AB - BACKGROUND: Amino acids are important for living organisms, they acting as crucial for metabolic activities and energy generation, wherein the deficiency in these amino acids cause various physiological defects. OBJECTIVE: The aim of this study is to investigate the effect of some nutritional factors on the amino acids production by Mucor mucedo KP736529 during fermentation intervals. METHODOLOGY: Mucor mucedo KP736529 was selected according to proteolytic activity. Corn steep liquor and olive cake were used in the fermented medium during Placket-Burman and central composite design to maximize the production of lysine and glutamic acids. RESULTS: During the screening by Plackett-Burman design, olive cake and Corn Steep Liquor (CSL) had potential importance for the higher production of amino acids. The individual fractionation of total amino acids showed both lysine and glutamic as the major amino acids associated with the fermentation process. Moreover, the Central Composite Design (CCD) has been adopted to explain the interaction between olive cake and CSL on the production of lysine and glutamic acids. The model recorded significant F-value, with high values of R 2, adjusted R 2 and predicted R 2 for both lysine and glutamic, indicating the validity of the data. Solving equation for maximum production of lysine recorded theoretical levels of olive cake and CSL, being 2.58 and 1.83 g L -1, respectively, with predicting value of lysine at 1.470 MUg mL -1, whereas the predicting value of glutamic acid reached 0.805 mg mL -1 at levels of 2.49 and 1.93 g L -1 from olive cake and CSL, respectively. The desirability function (D) showed the actual responses being 1.473+/-0.009 and 0.801+/-0.004 MUg mL -1 for lysine and glutamic acids, respectively. CONCLUSION: The model showed adequate validity to be applied in a large-scale production of both lysine and glutamic acids. PMID- 29023030 TI - Biological Activity Alterations of Human Amniotic Membrane Pre and Post Irradiation Tissue Banking. AB - BACKGROUND AND OBJECTIVE: Innate immunity of Human Amniotic Membrane (HAM) and its highly active secretome that rich with various types of growth factors and anti-inflammatory substances proposed it as a promising material for many medical studies and applications. METHODOLOGY: This study evaluate the biological activity of cultivated HAM pre and post tissue banking process in which freeze dried HAM was sterilized by 25 KGray (kGy) dose of gamma radiation. The HAM's antimicrobial activity, viability, growth of isolated human amniotic epithelial cells (HAECs), hematopoietic stimulation of co-cultivated murine bone marrow cells (mammalian model), scaffold efficiency for fish brain building up (non mammalian model) and self re-epithelialization after trypsin denuding treatment were examined as supposed biological activity features. RESULTS: Native HAM revealed viability indications and was active to kill all tested microorganisms; 6 bacterial species (3 Gram-positive and 3 Gram-negative) and Candida albicans as a pathogenic fungus. Also, HAM activity promoted colony formation of murine hematopoietic cells, Tilapia nilotica brain fragment building-up and self re epithelialization after trypsin treatment. In contrary, radiation-based tissue banking of HAM caused HAM cellular death and consequently lacked almost all of examined biological activity features. CONCLUSION: Viable HAM was featured with biological activity than fixed HAM prepared by irradiation tissue banking. PMID- 29023031 TI - Growth Effect of Cinnamomum kanehirae Cuttings Associated with its Dark Septate Endophytes. AB - BACKGROUND AND OBJECTIVE: Stout camphor tree (Cinnamomum kanehirae Hay.) is an endemic specie in Taiwan and cutting is the major propagation of C. kanehirae for plantation. Mycorrhiza can accelerate the growth of the host plant, especially in root of the host plant. The objective of this study was to investigate the growth effect of the 2 dark septate endophytes isolated from C. kanehirae. MATERIALS AND METHODS: To measure the effects of stains CkDB2 and CkDB5 on growth performance of cuttings, the cuttings were carefully removed from their substrate after 9 months of incubation. Each treatment had three replicates. RESULTS: After 9 month incubation, the mycorrhizal synthesis experiment showed that the roots of synthesized cuttings produced microsclerotia, a characteristic of dark septate endophyte, but nothing was found in the control. All inoculated cuttings had higher values of net height growth, dry weight, leaf area and chlorophyll concentration than the control. CONCLUSION: This study demonstrated that the 2 endophytes, strains CkDB2 and CkDB5, capable of forming microsclerotia with C. kanehirae cuttings were dark septate endophytes. Based on the results, CkDB5 had a better growth response than CkDB2. Cuttings inoculated with CkDB5 showed a 200% increase in the root dry weight and therefore, CkDB5 could presumably be a prerequisite for the survival of C. kanehirae cutting plantation. PMID- 29023032 TI - Oncogenic Human Papillomavirus Infection and Genotype Characterization among Women in Orodara, Western Burkina Faso. AB - BACKGROUND AND OBJECTIVE: Cervical cancer usually occurs several years after persistent infection with oncogenic or high-risk human papillomavirus. The objective of this study was to determine carriage of 14 genotypes of high-risk human papillomavirus among women at Orodara and then characterize the genotypes found in these women. MATERIALS AND METHODS: From June to July 2015, 120 women from the general population were recruited in the health district of Orodara. They voluntarily agreed to participate in the study. Endocervical samples were taken from these women prior to screening for precancerous lesions by visual inspection with acetic acid and lugol's iodine. Identification of high-risk human papillomavirus genotype was done using real-time PCR. RESULTS: High-risk human papillomavirus prevalence was 38.3% and the most common genotypes were HPV 52 (25.4%), HPV 33 (20.6%) and HPV 59 (11.1%). The HPV 66 was also identified with a prevalence of 9.5%. CONCLUSION: The HPV 16 and HPV 18 which are frequently associated with cancer worldwide were not found among the most frequent oncogenic HPV in women in Orodara. PMID- 29023033 TI - Genomics: A Way Forward to Tackle Climatic Challenges. PMID- 29023034 TI - Phenotypic and Molecular Characterization of Multidrug Resistant Klebsiella pneumoniae Isolated from Different Clinical Sources in Al-Najaf Province-Iraq. AB - BACKGROUND AND OBJECTIVE: Burns infections and urinary tract infections are the most important prevalent diseases in Asian countries, such as Iraq. Klebsiella pneumoniae is one of the most important bacteria cause this type of infections especially in hospitals. Therefore, the aim of this study was to investigate the prevalence of multi-drug resistance K. pneumoniae and extended-spectrum beta lactamases producing K. pneumoniae isolates from inpatients with urinary tract infection and burns infections in Al-Kufa hospital in Al-Najaf province, Iraq. MATERIALS AND METHODS: A total of 285 clinical samples were collected from in patients infected with urinary tract infection (141 urine samples) and burns infections (144 burns swabs). Fourteen different antibiotics were used by disc diffusion method and 13 antimicrobials resistance genes were used by PCR technique. RESULTS: A total of 43 K. pneumoniae strains were isolated. The highest resistance rate was observed for amoxicillin 25 MUg and amoxicillin+clavulanic acid 20+10 MUg (97.67%) while the lowest resistance rate was observed for imipenem 10 MUg (9.30%). The most common resistance associated genes were blaSHV (86.04%) and at lower prevalence were IMP (9.30%). CONCLUSION: Klebsiella pneumoniae strains isolated from burns infections were more virulent than those isolated from urinary tract infections. PMID- 29023035 TI - Cloning and Expression Analysis of HbPR-1b and HbPR-3 in Hevea brasiliensis During Inoculation with Rigidoporus microporus. AB - BACKGROUND AND OBJECTIVE: Pathogenesis-related (PR) proteins are dramatically accumulated after pathogen infection. Innate defense response through increasing PR-proteins is important for rubber rootstock selection that is tolerant to the white root disease caused by Rigidoporus microporus. This study was aimed to investigate the expression levels of PR-1 and PR-3 genes in tolerant (PB5/51) and susceptible (BPM24 and RRIM600) rubber clones after R. microporus infection. MATERIALS AND METHODS: The mRNA of HbPR-1b and HbPR-3 was isolated and characterized from rubber leaves. Gene expression levels of HbPR-1b and HbPR-3 were compared among three rubber clones (PB5/51, BPM24 and RRIM600) after R. microporus infection at 0, 12, 24, 48, 72 and 96 h using quantitative real-time PCR. The relative transcript abundances between inoculated and control plants were compared using the means of gene expression between time points and by Tukey's HSD test. A probability value (p<0.05) was used to determine the significance of difference between time points. RESULTS: The open reading frame of HbPR-1b is 492 bp with deduced 163 amino acid residues and the phylogenetic analysis showed it shared significant evolutionary history and clustering into group I of PR-protein. Moreover, the partial HbPR-3 was isolated with 390 bp. Gene expression levels of HbPR-1b and HbPR-3 showed marked differences in both transcripts depending on the rubber clones. Two genes demonstrated up-regulation of both tolerance and susceptibility in response to attack by R. microporus. The highest expression levels were found in seedlings of PB5/51 after inoculation. In RRIM600, low expression levels of HbPR-1b and HbPR-3 were initially observed but gradually increased at 24 h post inoculation. The transcription profile of HbPR 1b was stable expression in BPM24. CONCLUSION: The results demonstrated that the level ofHbPR-1b and HbPR-3 transcription can distinguish between tolerant and susceptible clones. The candidate defense genes to the white root disease were observed in PB5/51 seedlings, particularly HbPR-1b. PMID- 29023036 TI - Callus Induction from Various Organs of Dragon Fruit, Apple and Tomato on some Mediums. AB - BACKGROUND AND OBJECTIVE: Dragon fruit (Hylocereus spp.), apple (Malus sylvestris Mill.) and tomato (Solanum lycopersicum L.) are high potential sources of antioxidant compounds such as phenolics. The compounds have the capability of protecting cells and tissues against free radicals. Secondary metabolite produced by callus cell culture from plant organs also acts as a source of antioxidants. This study aimed to determine the optimal ratio of sucrose and 2,4-D in Murashige and Skoog (MS) medium for callus induction from different plant organ explants. With all of characteristic, callus can be used further for the development of natural cell regeneration agent. METHODOLOGY: This study was conducted using analytical technique. Suitable explants were obtained. They were developed in various concentrations of combination between MS medium and 2,4-D. Callus growth, including their weight and surface was then measured and analyzed by using one way analysis of variance (ANOVA). RESULTS: Callus was able to grow from its explants in 5-7 days after induction process. They were clear in color and had friable texture. The highest value of fresh weight of dragon fruit callus was obtained through MS supplemented with 1 MUL L-1 2,4-D and 30 g sucrose. However, apple and tomato callus induction and growth maintenance reached optimal medium on MS supplemented with 30 g sucrose and 2 MUL L-1 2,4-D. CONCLUSION: Callus of apple, dragon fruit and tomato was maintained upon MS supplemented with 30-40 g sucrose and 1-2 MUL L-1 2,4-D for optimum induction and growth. The optimization of growth medium will give advantages for further development of natural cell regeneration agent. PMID- 29023037 TI - Influence of Light Intensity and Photoperiod on the Seed Germination of Four Rhododendron Species in Taiwan. AB - BACKGROUND AND OBJECTIVE: There are 15 native Rhododendron species in Taiwan, among which 11 species are endemic and compose 73% of these native species. Although researchers predominantly use cuttings to propagate Rhododendron shrubs, there are no studies on the seed germination of Rhododendron species. The objective of this study was to evaluate the seed germination of four Rhododendron species in Taiwan under different light intensities and photoperiods. MATERIALS AND METHODS: Two experiments on the seed germination percentage of R. breviperulatum, R. kanehirai, R. ovatum and R. simsii were conducted in this study. The first experiment was to identify the seed germination percentage of these four Rhododendron species using different light intensities (0, 700, 1400 and 3200 lux). The second experiment was to clarify the seed germination percentage of these four Rhododendron species using different photoperiods (0, 1, 4 and 16 h). All statistical analyses were performed using Statistical Package for the Social Science (SPSS12.0) for Windows software program. The data were analyzed using Tukey's multiple range test at the p<0.05 significance level. RESULTS: After 30 days, no seed germination occurred in darkness. The highest average seed germination percentages were all observed at 700 lux: R. breviperulatum (83.3%), R. kanehirai (68.9%), R. ovatum (85.6%) and R. simsii (92.2%). The highest average germination percentages of seeds were observed in R. breviperulatum at 16 h (83.3%), R. kanehirai at 1 h (60.0%), R. ovatum at 16 h (84.4%) and R. simsii at 16 h (85.6%). According to the results, these four Rhododendron species required light for germination. There were significant differences (p<0.05) in the seed germination of these four Rhododendron species for light intensity greater than 700 lux. Similar results were observed with photoperiods. CONCLUSION: The seed germination percentage of R. breviperulatum, R. ovatum and R. simsii increased with increasing photoperiod. PMID- 29023038 TI - Evaluation of Autothermal Thermophilic Aerobic Digester Performance for the Stabilization of Municipal Wastewater Sludge. AB - BACKGROUND AND OBJECTIVE: Sludge stabilization process in terms of operational, environmental and economic indexes is the most important stage of treatment and its disposal. This study was aimed to determine the performance of Autothermal Thermophilic Aerobic Digestion (ATAD) system as one of the low-cost and biocompatible methods of sludge treatment. MATERIALS AND METHODS: This study has been done using a laboratory scale Autothermal Thermophilic Aerobic Digestion (ATAD). The reactor was consisted of two polyethylene tanks with a final capacity of 100 L for each tank. Both tanks with all fittings were installed on a metal frame. The variables of study were temperature, dissolved oxygen, pH, volatile organic compounds, total solids, COD and the number of Ascaris eggs and fecal coliforms per gram of dry matter of the sludge. The temperature was measured hourly and the pH and dissolved oxygen were measured and controlled twice per day. One-way ANNOVA was applied to analyze reasults. RESULTS: According to the results, the temperature of sludge increased from 11.7-61.2 degrees C by biological reactions. Pathogen organisms were reduced from 80*106 to 503 in number during 72 h. After 6 days pathogen organisms and Ascaris eggs were removed completely. Volatile organic compounds and COD were reduced 42 and 38.3% respectively during the 6 days. CONCLUSION: It is concluded that the performance of ATAD in removing organic compounds from wastewater sludge were desirable. Resulted sludge from stabilization process were appropriate for use in agriculture as a soil supplement and met the indexes of class A sludge according to EPA's standards (CFR 40 Part 503). PMID- 29023039 TI - Molecular Epidemiology of High-Risk Human Papillomavirus in High-Grade Cervical Intraepithelial Neoplasia and in Cervical Cancer in Parakou, Republic of Benin. AB - Human papilloma virus (HPV) infection remains a worldwide concern, especially in Sub-Saharan Africa where cervical cancer is the leading cause of cancer death in women. The aim of the study was to determine the prevalence and genotypic distribution of High-Risk HPV (HR-HPV) involved in Cervical Intraepithelial Neoplasia (CIN) II and III and in cervical cancer in Parakou. Out of a total of 149 samples of cervical tissues archived, fixed and paraffin-embedded, 78 samples with histological diagnosis of CIN-II, CIN-III and cervical cancer went through deparaffinization with xylene, followed by an extraction of HPV DNA and the detection of HR-HPV by real-time multiplex PCR. The average age of the women was 40.05+/-13.99 years. The samples were positive to at least one HR-HPV genotype in 76.92% (50/65) of cases. The HR-HPV genotypes which are most common in the cervical cancer and in CIN-II and III were, respectively HPV-39 (38 and 37.50%), HPV-18 (35 and 31.30%), HPV-45 (35 and 31.30%), HPV-35 (9 and 25%) and HPV-52 (9 and 12.50%). The HPV-16 was absent. This study helped to detect (in samples archived, fixed and paraffin-embedded tissues) HR-HPV involved in high-grade precancerous lesions and in cervical cancer in Parakou, some of which are not covered by currently available vaccines. PMID- 29023040 TI - Effects of Feeding Rates on Growth Performance, Feed Utilization and Body Composition of Asian Red Tail Catfish (Hemibagrus wyckioides), Cultured in Northeast Thailand. AB - Two experiments were carried out at the Khon Kaen University, Nong Khai Campus, Thailand during November, 2011 to May, 2012 to search for the most appropriate rates of feeding rations for fingerling and juvenile Asian redtail catfish (Hemibagrus wyckioides). A Completely Randomized Design (CRD) with three replications was used for both experiments. Experiment 1 had four treatments, i.e., T1 (2%), T2 (3%), T3 (4%, control), and T4 (5%). The same experimental design was used for the experiment 2, where four treatments were used, i.e., T1 (1%), T2 (2%), T3 (3%, control) and T4 (4%). The percentages of the amounts of rations used for Experiments 1 and 2 were based on body-live weight per day. Fingerling and juvenile fish were used for the experiments 1 and 2, respectively. Each experiment was carried out for 10 weeks. The results showed that a rate of 5% body live weight per day for fingerling fish of T4 of experiment 1 is the most appropriate rate for the fingerling fish. An increase in ration rate highly increased final body live weight. For juvenile fish of the experiment 2, it was found that there were no significant differences in live weights amongst the treated fish yet weight gained and specific growth rates between T1 and the rest were highly significant, whereas the results of the juvenile fish of T2 up to T4 were similar hence, 2% body live weight per day of T2 is the most appropriate rate for juvenile fish. PMID- 29023041 TI - DNA Barcoding Uncover Cryptic Diversity in Goat Fishes (Family: Mullidae) Across the Egyptian Coastal Waters. AB - Despite ongoing efforts to protect species and ecosystems in the egyptian costs of the Red Sea and Mediterranean Sea, habitat degradation, overfishing and pollution have posed serious challenges to marine natural resources. In spite of the accumulated knowledge on the systematics of commercial fishes in Egypt recent results suggested that we are far from having a complete picture of egyptian fish diversity. The accurate identification of species is a very important component in many fields of biological research and conservation efforts. The high level of expertise and time consuming process needed means a loss in biodiversity. Successful species identification is now frequently based on a combination of approaches including morphometrics and the sequencing of the mitochondrial COI gene known as the DNA barcoding. This study employed COI sequencing alongside traditional taxonomic identification methods and uncovered cryptic diversity within the goat fish species of Family Mullidae, four species collected from both the Red Sea and the Mediterranean Sea. Upeneus pori, Upeneus vittatus, Mullus surmuletus and Mullus barbatus samples from the Red Sea and the Mediterranean were clustered separately in a NJ tree indicating the possibility of the presence of cryptic species complex. All species could be differentiated by their COI sequence. PMID- 29023042 TI - Alteration Expression of Bax, Bcl-2 and VDAC1 Genes in Oligozoospermic and Fertile Subjects. AB - One of factors causing oligozoospermic circumstances is excessive apoptosis during spermatogenesis. Spermatogenesis known involves Bcl-2 family proteins in cytoplasm and Voltage Dependent Anion Channel 1 (VDAC1) in outer mitochondrial membrane to facilitate releasing of apoptosis factor such as cytochrome-c from inter-membrane space into cytoplasm. The study was aimed to analyze the mRNA expression of pro-apoptotic Bax, anti-apoptotic Bcl-2 and VDAC1 genes derived from 45 oligozoospermic subjects and 20 fertile subjects as control. Analysis of transcript expression was performed by two-steps real-time (PCR) and calculating by standard curve method. Stages of works were followed: Analysis of sperm basal characterization, isolation of spermatozoa to separate it from cement and resulted pellets. Pellets were saturated with PBS to obtain mRNA and reversed into cDNA. The cDNA were sequenced to investigate SNP of Bax, Bcl-2 and VDAC1 genes. Results showed that comparison of log mRNA copy number of Bax, Bcl-2 and VDAC1 genes for oligospemic and fertile subjects varied. The Bax, Bcl-2 and VDAC1 were significantly different between oligozoospermic and normozoospermic subjects (p = 0.000, p = 0.041, p = 0.000, respectively). It was suggested that oligozoospermia may be occurred by inducing the increase of Bax pro-apoptotic and VDAC1 genes expression and decreasing of Bcl-2 expression to lead the excessive of apoptosis. PMID- 29023043 TI - Characterization of alpha-Amylase from Soursop (Annona muricata Linn.) Fruits Degraded by Rhizopus stolonifer. AB - Rhizopus stolonifer is a fungus and one of the most common species of the genus Rhizopus. The organism has been a very important microbe used in the field of industrial microbiology. It has been used in the production of many hydrolytic and extracellular enzymes among which is the alpha-amylase. This enzyme has found various uses in the industry. Fruit juices are important sources of nutrients and they contain several important therapeutic properties that may reduce the risk of various diseases. An investigation on alpha-amylase extracted from soursop fruits deteriorated by R. stolonifer and the effect of the enzyme on soursop juice clarification was carried out in this study. The results obtained shows that the soursop juice with low concentration of extracted enzyme and less incubation time was more viscous and cloudy compared with the juice with high concentrations of amylase and higher incubation time which was clearer and less viscous. The results of this research will be very useful in soursop juice producing companies. PMID- 29023044 TI - Competitive and Allelopathic Effects of Wild Rice Accessions (Oryza longistaminata) at Different Growth Stages. AB - The competitive and allelopathic effects of wild rice (Oryza longistaminata) accessions on barnyard grass at different growth stages determined by days after sowing (0, 30, 60 and 90 days) were studied in greenhouse pot experiments. Wild rice accession RL159 exhibited the greatest height and tillering. The weed suppression rates of wild rice accessions OL and F1 on barnyard grass were significantly higher than for other rice accessions, with the lowest being O. sativa cultivar RD23. The highest suppression rates of OL and F1 were 80.23 and 73.96% at barnyard grass growth stages of 90 days and 60 days. At a 90 growth stage, wild rice accessions RL159 and RL169 caused 61.33 and 54.51% inhibition in barnyard grass growth, respectively. Under the same conditions, the competitive inhibition rates of OL, F1, RL159, RL169 and RL219 against barnyard grass were markedly lower than their weed suppressive effects, but were relatively similar for RD23. The allelopathic inhibition of OL and F1 on barnyard grass was significantly higher than other rice accessions. The highest allelopathic rates of OL and F1 were 60.61 and 56.87% at the 0 day growth stage. It is concluded that wild rice accessions OL and F1 exhibited the highest allelopathic activity along with moderate competitive ability against barnyard grass; wild rice accession RL159 had the highest competitive ability and moderate allelopathic activity on barnyard grass. Thus, the three wild rice accessions OL, F1 and RL159 could be used as ideal breeding materials for cultivated rice improvement. PMID- 29023045 TI - Acute Toxicity of Cashew Nut Shell Extract (Anacardium occidentale L.) In Albino Rat (Rattus norvegicus Berkenhout 1769). AB - Cashew plant (Anacardium occidentale L.) is a crop producing cashew nut shell that contain phenolic compounds such as lacquer oil (cashew nut shell liquid) which can be used for many studies. This study was conducted to determine the potency of acute toxicity (LD50) of cashew nut shell extract on female albino Wistar rats using Weil method. Twenty rats used in this study. The rats was divided into five groups, each consist of four rats after acclimatization. Each group was given the extract of cashew nut shell orally (force-fed). The amount of cashew nut shell extract that were given to group I, II, III and IV were 2.5, 25, 250 and 2,500 mg kg-1 b.wt., respectively, while group V were given 0.5% sodium carboxyl methyl cellulose (CMCNa) solution. Clinical symptoms were observed 24 h after the administration of extract include behavioral changes i.e., licking, scratching, twitching, tremors, wrihing, reactivity to stimuli, cerebral and spinal reflexes, secretions, breath, skin, hair and death. Probit analysis using Weil method was used as an effective dose. The results showed that the potency for acute toxicity (LD50) of cashew nut shell extract was 2,018 mg kg-1 which classified as moderately toxic category. The administration of extract also causes behavioral changes in animal including passivity and mucus secretion. All doses of the extract did not affect the development body weight and the weight of organs (spleen, liver, heart, kidneys and lungs) in female rats. PMID- 29023046 TI - Assessment of Pesticide Residues in Human Blood and Effects of Occupational Exposure on Hematological and Hormonal Qualities. AB - Pesticides are the first choice by farmers for use against plant pathogens, nevertheless their adverse effects to the environment. Current study was designed to measure pesticides residues in blood of spray farmers and to assess their possible effects. Blood indices and thyroid and reproductive hormones were evaluated in blood of adult male volunteers (20-48 years old). Volunteers were divided to three groups; spray-workers (directly-exposed), farmers who live in the country area (indirectly-exposed) and city inhabitants (not exposed). Spray workers had significantly decreased platelet number (PLT, 33%), ratio of large platelet (P-LCR%, 42%), average platelet volume (MPV, 70%), relative width of the distribution of erythrocytes (PDW, 56%), relative content of monocytes, basophils and eosinophils (MXD, 100%) compared to control group. In addition, blood samples of the exposed group showed significantly decreased PLT (30%), P-LCR (40%), MPV (65%) and PDW (50%) compared to the farmers. Furthermore, levels of testosterone, triiodothyronine and thyroxine hormones of spray workers were significantly low compared with the country residents. Then results were further subjected to canonical discriminant analysis to visualize the interrelationships among variables. Results highlighted the critical need for enforced official interventions that reduce overexposure of spray workers throughout Egypt. PMID- 29023047 TI - Recombinant Engineering of L-Methioninase Using Two Different Promoter and Expression Systems and in vitro Analysis of Its Anticancer Efficacy on Different Human Cancer Cell Lines. AB - Recombinant methioninase (rMETase) is an enzyme that has antitumor activity. In this work, METase gene from Pseudomonas putida ATTCC 8209 was cloned to pT7-7 plasmid (yielded, PT7-METase-R7 clone) and expressed in E. coli strain BL21 (DE3). A protein band with a molecular massof 42 kDa was visualized by SDS-PAGE. The applied protocol yielded a total protein of 3.13 g with a recovery of 66.89% and a specific activity of 18.59 U mg-1 which considered as a low yield. However, when the METase gene was cloned to the vector (pTrc99A, clone: pTrc99A-MET-3) cells of E. coli JM109 yielded a total protein of 32.63 g with a recovery of 41.62% and a specific activity of 54.86 U mg-1 which revealed that the enhancement of METase gene expression by trc promoter was more than the T7 RNA polymerase promoter. The t1/2 of the rMETase was 2 h asanalyzed in mice by IV injection. Antitumor efficacy of rMETase was studied in five human cancer cell lines. At 1 U mL-1 the growth rate of treated colon cancer cell lines, Colo205 and SW620, with rMETase was 46 and 32% relative to control, respectively. With the ovarian cancer cell line (A2780) rMETase produced an inhibition effect of 54% at 1.5 U mL-1. In addition, the growth rate was reduced to 45 and 53% with the skin cancer cell line (A375) and the breast cancer cell line (MCF-7), respectively. These results indicate the feasibility of rMETase for use as a potent antitumor agent. PMID- 29023048 TI - Level of Heavy Metals in Two Highly Consumed Fish Species at District Lower Dir, Khyber Pakhtunkhwa, Pakistan. AB - The current study was designed to assess heavy metals' concentration in muscle tissues of two Chinese carps, common carp (Cyprinus carpio) and silver carp (Hypophthalmichthys molitrix), available to consumers in markets at district Lower Dir, Khyber Pakhtunkhwa, Pakistan. Fish specimens were collected from three main markets in the study area namely; Chakdara, Timergara and Khall. Heavy metals including; manganese (Mn), lead (Pb), iron (Fe), copper (Cu), zinc (Zn), cadmium (Cd) and cobalt (Co) were investigated using atomic absorption spectrophotometer. Cobalt was not detected in any of the fish specimens while the rest of the metals were lying within the permissible limits suggested by FAO/WHO and ITS for food/fish consumption. The results showed a statistically significant (p<0.05) difference between both species with respect to the concentration of the accumulated heavy metals. In common carp, the heavy metal accumulation was in order of Fe>Mn>Zn>Pb>Cu>Cd, while in silver carp the order was Fe>Mn>Zn>Pb>Cd>Cu. Higher concentration of Pb, Mn, Zn, Cu and Cd was recorded in muscle of common carp while the concentration of Fe was higher in silver carp, indicating higher potential of accumulation of heavy metals in common carp. Statistically significant (p<0.05) correlation was observed between Pb and Zn in common carp while between Cu and Cd in silver carp. The concentration of heavy metals was in the suggested permissible limits and poses no threat if consumed. In order to maintain the heavy metals level within permissible limits, proper care should be taken along with regular assessment. PMID- 29023049 TI - Study of Genetic Marker of Cuscuses (Marsupialia: Phalangeridae) from Maluku and Papua Based on Cytochrome b Gene Sequences. AB - Cuscuses is marsupials animal (Phalangeridae) which has limited spread in eastern Indonesia (Sulawesi, Maluku, Papua and Timor islands), Australia and Papua New Guinea. The ex-situ and in-situ conservation of cuscuses under captivating condition is an alternative solution to protect from extinction. This study aimed to determine nucleotide sequences and genetic marker on cyt b gene with sequencing method of each species on two provinces. Whole genome DNA was extracted from 22 samples of cuscuses obtained from different habitats, Maluku (13 individuals) and Papua (8 individuals) according to the protocol of Qiamp DNA Blood Mini Kit (Qiagen) and then it was used as template for amplification of cyt b gene by using PCR method. The PCR product were then purified using column chromatography and were used as template for sequencing reaction. Results sequencing of cyt b gene were analyzed using MEGA program versions 6.0. The PCR product gives results nucleotides of 982 bp according to database GeneBank and sequencing product gives results nucleotides of 771 bp. Nucleotides alignment of Phalanger members was found 24 nucleotides distinguishing and Spilocuscus members was found 11 nucleotides distinguishing, which can be used as genetic marker between Phalanger and Spilocuscus members from Papua and Maluku. PMID- 29023050 TI - Molecular Diagnosis of Clinical Isolates of Cutaneous Leishmaniasis Using ITS1 and KDNA Genes and Genetic Polymorphism of Leishmania in Kashan, Iran. AB - Cutaneous leishmaniasis is a common skin disease caused by leishmania parasite. An accurate diagnosis of parasites species is possible using molecular techniques. This study was carried out to compare internal transcribed spacer (ITS1) and kinetoplast deoxyribonucleic acid (KDNA) genes for identifying Leishmania species by Polymerase Chain Reaction (PCR), furthermore, genetic diversity of isolates was studied. This research examined 130 patients who were suspected of cutaneous leishmaniasis and referred to Kashan's health centers from 2011-2014. After DNA extraction from serosity, PCR were performed using ITS1 and KDNA primers. Cutaneous Leishmaniasis was diagnosed by the observation of 320 bp band in the ITS1-PCR. The PCR products were digested with restriction enzyme HaeIII and then leishmania species were identified by patterns of enzymatic digestion. The diagnostic criteria of Cutaneous Leishmaniasis (CL) in KDNA-PCR were based on the observation of 760 and 650 bp for Leishmaniasis tropica and Leishmaniasis major, respectively. Twelve isolates of leishmania were sequenced and the phylogenetic tree was traced using the results of sequencing by Mega 4 software. Out of 130 suspected patients to CL, 70 (53.8%) and 98 (75.4%) isolates were positive by Restriction Fragment Length Polymorphism (RFLP) of ITS1 and KDNA, respectively. Using ITS1 PCR, 60 samples (85.7%) and 10 samples (14.3%) were identified as L. tropica and L. major, respectively, ITS1-PCR had 25.3% false negative, compare to microscopy. While, microscopy had false negative in 13 cases compare to KDNA-PCR. Due to the lower sensitivity of the PCR-RFLP of ITS1, KDNA-PCR is recommended for diagnosis of CL. The L. tropica and L. major are the causative agents of CL. PMID- 29023051 TI - Nutritional Properties Assessment of Endogenous and Improved Varieties of Maize (Zea mays L.) Grown in Southern Benin. AB - BACKGROUND AND OBJECTIVE: A wide range of maize varieties is used in Benin but information on the nutritional characteristics of these varieties are not well known. This study aims to assess the nutritional composition of maize varieties in use in the southern region of Benin with the purpose of providing consumers accurate information for better choice. MATERIALS AND METHODS: Moisture, ash, protein, fiber and fat contents were determined according to Association of Official Analytical Chemists and American Association of Cereal Chemists methods. Sugar and organic acids were assessed using High Performance Liquid Chromatography methods and amino acids profile was established according to Rosen method using glutamic acid. RESULTS: The maize varieties were classified into 5 clusters according to their macro nutrients composition and 4 clusters based on their sugar and organic acids contents. Varieties of group 5 were very rich in protein (14.34 g/100 g), while the highest fat content (7.22 g/100 g) was observed for group 2 varieties. The highest carbohydrate contents obtained were 80.64 g/100 g, 80.11 g/100 g and 79.15 g/100 g for groups 1, 4 and 5 varieties respectively. Moreover the dendrogram gave four homogeneous clusters according to sugars and organic acids composition. Varieties of groups 2, 3 and 4 had almost the same fructose contents ranging between 0.04 and 0.06%; varieties of group 1 contained the highest contents of raffinose, sucrose and glucose; those of group 2 were very rich in propionate and fructose. CONCLUSION: It is concluded that some of maize varieties investigated contained high level of protein. Furthermore glutamic acid was the predominant amino acid while the least amino acid was methionine. Those varieties, owing to their protein and amino acids contents could have many benefits by providing vital constituents to the body. PMID- 29023052 TI - Effect of Salicylic Acid on the Growth and Chemical Responses of Pectobacterium carotovorum subsp. carotovorum. AB - BACKGROUND AND OBJECTIVE: Salicylic acid is a signal molecule which activates plant defense against plant pathogens such as the soft rot enterobacterium Pectobacterium carotovorum subsp. carotovorum. The objectives of study were to determine bactericidal effects of salicylic acid on the growth of P. carotovorum subsp. carotovorum and secondly, assess chemical responses of P. carotovorum subsp. carotovorum to salicylic acid. MATERIALS AND METHODS: Pectobacterium carotovorum subsp. carotovorum was grown in lysogeny broth amended with salicylic acid at concentrations of 0, 100, 200, 400, 800 and 1200 mg L-1. The P. carotovorum subsp. carotovorum cultures were incubated at 25 degrees C and sampled at two time points, 0 h (sampled before incubation) and 24 h. Bacterial counts were done at the onset of the incubation (0 h) and after the 24 h incubation. The set which was incubated for 24 h was split into two, one subset was centrifuged and the other was not. From the centrifuged subset the supernatant was recovered and was, together with all the other samples (0 and 24 h not centrifuged), analyzed with1H nuclear magnetic resonance and gas chromatography. RESULTS: Bacterial counts done before and after incubation showed that the lower concentrations of salicylic acid, 0, 100, 200 and 400 mg L-1, supported the growth of P. carotovorum subsp. carotovorum whereas the higher concentrations of 800 and 1200 mg L-1 inhibited the growth of the bacterium completely. Nuclear magnetic resonance results showed either slight or no differences in the metabolite profiles and gas chromatography showed different responses without a clearly defined pattern among the experimental treatments. However, methanethiol was detected by both nuclear magnetic resonance and gas chromatography in all the treatments and was probably formed as a result of the breakdown of lysogeny broth. CONCLUSION: From the results obtained it was concluded that salicylic acid promotes the growth of P. carotovorum subsp. carotovorum at lower concentrations of 0-400 mg L-1 but higher concentrations of salicylic acid of 800 and 1200 mg L-1 inhibit bacterial growth. All the tested salicylic acid concentrations (0-1200 mg L-1) cause only slight chemical shifts in the bacterial culture. Methanethiol was detected in all treatments and it is probably formed from the breakdown of lysogeny broth. PMID- 29023053 TI - Effect of Antioxidants on Testicular iNOS and eNOS after High-Fat Diet in Rat. AB - BACKGROUND AND OBJECTIVE: Spermatogenesis is a process by which germ cells produce spermatozoa and can be disturbed at every level. Nitric Oxide Synthases (NOS), implicate in interactions with Oxidative Stress (OS) which is one of the main factors in the etiology of male infertility. The High Fat Diet (HFD) is a major factor of obesity which in turn is important for enhancing OS. Antioxidants and garlic could attenuate or reverse effects of HFD. The aim of the study was to investigate the effects of dietary antioxidants and garlic on testicular inducible NOS (iNOS) and endothelial NOS (eNOS) in Wistar albino rats fed on HFD. MATERIALS AND METHODS: Groups (each n = 8) were: SD (100% access to standard diet), F-HFD, (100% access to HFD) and R-HFD (70% access to HFD), F-HFD +antioxidants, F-HFD+garlic and R-HFD+antioxidants. The HFD consisted of a 60% fatty diet in 3 forms: Without antioxidants, with antioxidants and with garlic. The testicular iNOS and eNOS were studied by immunohistochemical (IHC) method. Also used ANOVA, repeated measures ANOVA, t-tests and Tukey's test (where necessary) to analyze the data (p<0.05). RESULTS: The iNOS increased in the F-HFD and R-HFD+antioxidants groups. The eNOS increased in R-HFD,F-HFD and F-HFD+garlic groups. The H-E evaluation in R-HFD group showed a decrease in spermatogenesis score count and seminiferous tubules diameters (MUm) in comparison with the SD and F-HFD groups. R-HFD+antioxidants group had lower score than F HFD+antioxidants and F-HFD+garlic groups. CONCLUSION: Restricted fat diet consumption causes increase in weight and impairs spermatogenesis. Results of this study reveal that adding the antioxidants can't improve histological changes of testis. The iNOS expression in seminiferous tubules in restricted fat diet along with antioxidants, suggest a potential role of iNOS in spermatogenesis and male infertility. PMID- 29023054 TI - Genetic Characterization, Antimicrobial Resistance Patterns and Virulence Determinants of Staphylococcus aureus Isolated form Bovine Mastitis. AB - BACKGROUND AND OBJECTIVE: Staphylococcus aureus is commonly associated with mastitis in dairy herds with potential public health implications. This study was conducted to investigate the existence of S. aureus in mastitic milk and to determine the antimicrobial resistance profiles of the isolated strains as well as the resistance and virulence associated genes. MATERIALS AND METHODS: Two hundred quarter milk samples were collected from 3 dairy farms at Dakahliya (n = 2) and Damietta (n = 1) Governorates, Egypt from September to December 2016. Conventional culturing and Polymerase Chain Reaction (PCR) assays targeting nuc (thermonuclease) and coa (coagulase) genes were performed. Isolates were tested for its susceptibility against 14 antimicrobial agents using disk diffusion method. All the isolates were screened for the presence of beta-lactamases (blaZ, mecA) and virulence associated (pvl and tst) genes by PCR. RESULTS: The S. aureus was detected in 42% (84/200) of the total examined milk samples. Regarding the antibiogram results, S. aureus revealed a high resistance against ampicillin (95.2%) and penicillin (83.3%) and a lower resistance was observed against gentamicin (23.8%), amikacin (16.7%) and ciprofloxacin (14.3%). Multidrug resistances were detected in 83.3% of the isolated S. aureus. Of the 70 penicillin-resistant S. aureus isolates, blaZ gene was identified in 67 (95.7%) isolates. Fifty percent of S. aureus isolates harbored the specific amplicon of mecA gene. Markedly, all mecA positive strains displayed multidrug resistance and were also positive for blaZ gene. The virulence determinants pvl and tst were detected in 7.1 and 11.9% of the isolated S. aureus, respectively. CONCLUSION: Presence of multidrug resistant and toxin producing S. aureus in dairy farms pose a major risk to public health. Therefore, this study highlighted the importance of developing an efficient control program to inhibit the transmission of S. aureus, particularly multidrug resistant strains to humans. PMID- 29023055 TI - Isolation of Potential Bacteria as Inoculum for Biofloc Formation in Pacific Whiteleg Shrimp, Litopenaeus vannamei Culture Ponds. AB - BACKGROUND AND OBJECTIVE: A new green technology to reduce environmental damages while optimizing production of Pacific Whiteleg shrimp, Litopenaeus vannamei was developed known as "Biofloc technology". Microbial communities in biofloc aggregates are responsible in eliminating water exchange and producing microbial proteins that can be used as supplemented feed for L. vannamei. This study aimed to isolate and identify potential bioflocculant-producing bacteria to be used as inoculum for rapid formation of biofloc. MATERIALS AND METHODS: For the purpose of this study, bacterial communities during 0, 30 and 70 days of culture (DOC) of L. vannamei grow-out ponds were isolated and identified through phenotypic and 16S rDNA sequences analysis. Phylogenetic relationships between isolated bacteria were then evaluated through phylogenetic tree analysis. One-way analysis of variance (ANOVA) was used to compare the differences of microbial communities at each DOC. RESULTS: Out of 125 bacterial isolates, nine species of bacteria from biofloc were identified successfully. Those bacteria species were identified as Halomonas venusta, H. aquamarina, Vibrio parahaemolyticus, Bacillus infantis, B. cereus, B. safensis, Providencia vermicola, Nitratireductor aquimarinus and Pseudoalteromonas sp., respectively. Through phylogenetic analysis, these isolates belong to Proteobacteria and Firmicutes families under the genera of Halomonas sp., Vibrio sp., Bacillus sp., Providencia sp., Nitratireductor sp. and Pseudoalteromonas sp. CONCLUSION: In this study, bioflocculant-producing bacteria were successfully identified which are perfect candidates in forming biofloc to reduce water pollution towards a sustainable aquaculture industry. Presence of Halomonas sp. and Bacillus sp. in all stages of biofloc formation reinforces the need for new development regarding the ability of these species to be used as inoculum in forming biofloc rapidly. PMID- 29023056 TI - Ameliorative Effect of Arctium lappa Against Cadmium Genotoxicity and Histopathology in Kidney of Wistar Rat. AB - BACKGROUND AND OBJECTIVE: Cadmium (Cd) is a non-essential metal whose dispersion in the environment has increased recently, Cd may enhance cell oxidative stress that leads to DNA damage and apoptotic cell death. The study aimed to evaluate the antioxidative capability of Burdock root 'Arctium lappa' on cadmium-induced oxidative stress and histopathology of the kidney of Wistar rats. METHODOLOGY: Cadmium was applied in a form of cadmium chloride to three groups (15 mg Cd kg-1) for five weeks with two groups pre-treated with 'Arctium lappa' administration, 100 and 200 mg kg-1 b.wt. Data were analyzed using one way analysis of variance (ANOVA) followed by Least Significant Difference (LSD) test to determine the difference among means using the JMP version 12. RESULTS: Results revealed that cadmium induced a significant disorganization (p<0.05) of renal structure with collapsed tubular lamina and 76 MUm tail length of the cells was observed, while histological sections of kidney pre-treated with 100 mg Arctium lappa kg-1 b.wt., showed a slightly less hypercellularity of glomerulus and reduction in the cell tail (59 MUm). Furthermore, histological sections of kidney of rats pre-treated with 200 mg Arctium lappa kg-1 b.wt., showed high improvement of renal tubules and glomerulus with a prominent urinary space beside tail length of cells was recorded as 39 MUm which was lower in comparison to other groups. CONCLUSION: Moreover, cadmium induced cellular destruction of the kidney was resumed with the pre-treatment of the secondary metabolites as an antioxidant compounds that produced from plant extracts. Arctium lappa leaf extract was efficient at both applied doses while 200 mg Arctium lappa kg-1 b.wt., had the most ameliorative effect. PMID- 29023057 TI - Dynamic of Bacterial Diversity in Ileum Digesta Under Water Supplements of Antibiotics and Probiotics. AB - BACKGROUND AND OBJECTIVE: Intestinal bacteria plays an important role in the physiological and immunological status of birds. The present study investigated the diversity of intestinal bacterial of broilers that were fed corn-soy diet and supplements of antibiotics and probiotics. MATERIALS AND METHODS: The supplemented treatments were water, water with antibiotics, water with probiotic and water with antibiotics and probiotic. Eight randomly sampled broilers were slaughtered and their ileum digesta taken. The total of 32 samples was then subjected for DNA extraction. Subsequently, bacterial tag-encoded 16 FLX ampliconpyro sequencing (bTEFAP) procedures were performed. RESULTS: Nearly all treatments samples contained Lactobacillus, with the majority related to water with probiotic treatment. In contrast, different pathogenic bacteria along with Lactobacillus observed for other three treatments. CONCLUSION: The probiotics supplements made a shift towards useful bacterial species; Lactobacillus salivarius and Lactobacillus aviarius. This study promoted for replacing the probiotics as a prophylaxis in gastrointestinal infection and diseases instead of antibiotics. PMID- 29023058 TI - Morphometric Characteristics of Asian Catfish, Hemibagrus wyckii (Bleeker, 1858) (Bagridae), from the Riau Province of Indonesia. AB - BACKGROUND AND OBJECTIVE: Asian Catfish (Hemibagrus wyckii) is an important fish having both food and a high price in the market. These species are categorized as a carnivorous freshwater finfish native in Indonesia and is vulnerable to endangered status. This study was carried out to identify the morphometric characteristics of Hemibagrus wyckii (H. wyckii) from the Koto Panjang Reservoir, Kampar Kanan and Kampar Kiri rivers. MATERIALS AND METHODS: Twenty-five fish were collected from each sampling site. The morphometric characteristics were analyzed using the truss morphometric method. Twenty-nine characteristics were measured to obtain the morphometric characteristics of this species. Morphometric data of H. wyckii were analyzed using one-way ANOVA (SPSS version 17.0). Principal component analysis (PCA) was used to evaluate the relationship between different factors and morphometric characteristics. The distribution across different habitats was measured by component canonical analysis (CCA) and genetic distance was analyzed by hierarchical cluster. RESULTS: The average standard lengths of H. wyckii from the Koto Panjang Reservoir, Kampar Kanan and Kampar Kiri rivers (Mean+/-SD) were 428+/-15.78, 432.52+/-66.11 and 425.86+/-50.41 mm, respectively. Twenty-nine morphometric characteristics were measured. There was a 68.96% difference obtained in samples collected at the Koto Panjang Reservoir and Kampar Kanan river. There was a 95.55% difference obtained in the Koto Panjang Reservoir, Kampar Kiri river and a 100% difference obtained in the Kampar Kanan and Kampar Kiri rivers. The main differences in morphometric characteristics included inter orbital distance, length of adipose-fin base, predorsal length, length of front dorsal fin-front pelvic and depth of caudal peduncle. The Mahalanobis distance between fish from the Koto Panjang Reservoir and Kampar Kanan river demonstrated that both types originated from a single population. CONCLUSION: It was concluded that more favorable morphometric characteristics of H. wyckii were found in the Kampar Kanan river compared to those from the Koto Panjang Reservoir and Kampar Kiri river. PMID- 29023059 TI - Hematological and Mineral Profiles of Reproductive Failure of Exotic Breed Cattle in Payakumbuh, West Sumatra, Indonesia. AB - BACKGROUND AND OBJECTIVE: Female exotic breed cattle raised by traditional small farms are susceptible to reproductive disturbances that result in failure or delay to produce calves. The present research investigated the hematologic profiles of exotic breed cattle having reproductive troubles versus heifers and pregnant cows raised by small farms. MATERIALS AND METHODS: A survey was conducted to identify the reproduction performance of 160 female Simmental cows raised at 15 smallholders in Payakumbuh, West Sumatra, Indonesia. Samples of blood were collected from 15 female Simmentals comprised of three different reproductive statues (heifers, pregnant and reproductive failure, n = 5 animals each). Blood plasma was then separated and analyzed for hematological parameters [hemoglobin (Hb), hematocrit, red and white blood cell, mean corpuscular Hb concentration], total protein and mineral content (Ca, P, Mg, Fe, Mn, Cu and Zn). Samples of fodder feed were collected from 15 farms for determination of dominant species and mineral composition. Data were statistically analyzed in a completely randomized 3*5 design for blood parameters and 4*3 design for forage minerals. RESULTS: About one-third of female cows found to have reproductive problems. Anestrus was found to be the most important causal factor for reproductive failure, followed by postpartum infertility (poor fertilization). The reproductive failure group had significantly lower (p<0.05) Hb levels, hematocrit, red and white blood cell and protein but higher mean corpuscular Hb concentration. Considering the critical levels in the blood and feed, the animals were deficient in protein, Ca, P, Mn and Cu. CONCLUSION: Anestrus and repeated insemination were found to be the major causes of reproductive disorders in exotic breed cattle under small farm conditions that results in delay or failure to produce calves. Reproductive disturbances in Simmental cows were most likely associated with nutrient deficiencies. PMID- 29023060 TI - Polymorphism of Glutamate-Cysteine Ligase Subunit Catalytic (GCLC) Gene in Pulmonary Tuberculosis Patients. AB - BACKGROUND AND OBJECTIVE: The biomarker of oxidative stress in pulmonary tuberculosis patients has not been found. Oxidative stress occurs due to the low level of antioxidants. Single nucleotide polymorphism of glutamate-cysteine ligase subunit catalytic (GCLC) gene namely -129C/T GCLC has been reported to have an association with a risk factor of oxidative stress' susceptibility. The Objective of this study was to determine the GCLC polymorphism in pulmonary tuberculosis (TB) patient. MATERIALS AND METHODS: Blood samples of 225 pulmonary TB patients were taken from the central public health in Semarang city. The genetic test was carried out using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The isolation of DNA from 225 blood samples was performed using DNA extraction kit (Promega DNA purification kit) following the manufacturing procedure. The amplification of GCLC fragment was performed by a master mix from Thermo Scientific. Data was analyzed descriptively. Statistical analysis was performed by Chi-square test. RESULTS: The results showed the existence of polymorphism-129C/T in the 5'-flanking region of GCLC genes. The frequency of C/C and C/T genotype were 63.6 and 36.4%, respectively. The C/T gene in the GCLC -129C region is a T gene promoter. There was a significant different between C/C and C/T frequencies with the value of significance of p = 0.000 (p<0.05). CONCLUSION: Therefore it was concluded that the frequency of C/T polymorphism genotype of GCLC gene in patients with pulmonary tuberculosis is 36.4%. PMID- 29023061 TI - Protective Role of Achillea biebersteinii Pretreatment on Dimethoate Induced Oxidative Stress in Guinea Pigs Liver. AB - OBJECTIVE: The present study investigated the influence of Achillea biebersteinii (Ab), a medicinal herb used widely in Yemeni's folk medicine as analgesic, antipyretic, against diarrhea and flatulence and for liver diseases, on the liver antioxidant potential of guinea pigs acutely intoxicated with dimethoate pesticide (DM). MATERIALS AND METHODS: Animals were administered with Ab aqueous extract (50 and 100 mg kg-1 b.wt., orally) or silymarin (100 mg kg-1 b.wt., orally) for 2 weeks followed by single acute DM administration (80 mg kg-1 b.wt., 1/4 of the LD50 orally). Data were analyzed by one-way ANOVA using SPSS. RESULTS: The results showed that the treatment with Ab extract significantly lowered the DM induced serum levels of hepatic marker enzymes (AST, ALT and ALP). Liver histopathology also showed that Ab extract reduced the incidence of lesions including the swelling of cells, lymphocytes infiltration, nucleus fragmentation and condensation and necrosis induced by DM treatment in guinea pigs. CONCLUSION: The results of this study suggest that Ab aqueous extract could protect the liver against DM-induced oxidative damage. PMID- 29023062 TI - Biodegradation of Quinalphos by a Soil Bacterium-Bacillus subtilis. AB - BACKGROUND AND OBJECTIVE: A widely used pesticide quinalphos (O, O-diethyl O quinoxalin-2-yl phosphorothioate) may be an undesirable and persistent pollutant to non-target environments like rivers and other ecosystems. The objective of this study was to isolate a potential degradant bacterium of quinalphos from polluted soils and test its fitness under various culture conditions. MATERIALS AND METHODS: A soil bacterium strain, capable of utilizing quinalphos as its sole source of carbon and energy was isolated from soil by enrichment method on a minimal salts medium (MSM). On the basis of morphological, biochemical and 16S rRNA gene sequence analysis the bacterium is a species of the genus Bacillus and it was closely related to Bacillus subtilis. Quinalphos degrading capabilities of this bacterium were assessed under different culture conditions. Quinalphos degradation data were analysed byusing a two-way ANOVA analysis with the Statistica v.10. RESULTS: Bacillus subtilis grew on quinalphos with a generation time of 32.34 min or 0.54 h in the logarithmic phase. Maximum degradation of quinalphos was observed with an inoculum of 1.0 optical density, around pH-7.5 and at an optimum temperature of 35-37 degrees C. Among the additional carbon and nitrogen sources, carbon source-glucose and nitrogen source-yeast extract marginally improved the rate of degradation of quinalphos. Gas chromatography mass spectrometry (GC-MS) analysis of the culture of B. subtilis grown on quinalphos indicated the formation of one main metabolite-quinoxaline. CONCLUSION: The B. subtilis strain discovered in this study has a unique combination of abilities to degrade quinalphos and it is therefore suitable candidate bioremediator of quinalphos polluted environments. PMID- 29023063 TI - Effectiveness of Metarhizium anisopliae and Entomopathogenic Nematodes to Control Oryctes rhinoceros Larvae in the Rainy Season. AB - BACKGROUND AND OBJECTIVE: Metarhizium anisopliae (MET) and entomopathogenic nematodes (EPN) are microorganisms that attack the larvae of Oryctes rhinoceros. The effects of MET, EPN and the combination of both on the O. rhinoceros larvae were studied during the rainy season in Jepara Indonesia. This study aimed to determine the effectiveness of Metarhizium anisopliae and entomopathogenic nematodes to control Oryctes rhinoceros larvae in the rainy season. MATERIALS AND METHODS: There were four level doses of MET, four level doses of EPN and four mixture of MET and EPN. The experiment used 72 containers that were placed in the garden with coconut palm shade. Five kilograms of organic soil that was mixed with biological control agents (MET, EPN and MET+EPN) and ten O. rhinoceros larvae 3rd instar were put in each other container. The data were analyzed by descriptive analysis. RESULTS: Every larvae mortality was observed once a week and observations are for 8 weeks. The result showed that the larval mortality due to MET treatment occurred on 2nd-7th week. Meanwhile, the larval mortality due to EPN treatment took place on 2nd-8th weeks and the larval mortality due to MET+EPN treatment occurred on 1st-5th weeks. CONCLUSION: The combination of MET and EPN was simultaneously effective to control O. rhinoceros larvae than separate use of MET or EPN. Result of this study showed that using two agents of biocontrol was more effective, so that it can be beneficial for controlling O. rhinoceros larvae in the field. PMID- 29023064 TI - Impact of Zeatin and Thidiazuron on Phenols and Flavonoids Accumulation in Callus Cultures of Gardenia (Gardenia jasminoides). AB - BACKGROUND AND OBJECTIVE: Gardenia (Gardenia jasminoides) has many pharmacological actions such as anti-inflammatory, antioxidant and fibrolytic activities and cytotoxic effects, etc. This study was conducted to recognize the effect of zeatin and thidiazuron (TDZ) on callus proliferation, total phenolic content, total flavonoids and DPPH scavenging activity of gardenia callus cultures. MATERIALS AND METHODS: Calli were cultured on Murashige and Skoog (MS) medium supplement with different concentrations (2, 4 or 6 mg L-1) of zeatin or TDZ individually as well as combination of 2 mg L-1 zeatin+4 mg L-1 TDZ. Cultures contained 4 mg L-1 TDZ gave the highest callus fresh weight followed by those contained 2 mg L-1 zeatin then that cultured on 4 mg L-1 zeatin. Data reported as Mean+/-Standard Deviation (SD). Data were subjected to one-way analysis of variance (p< 0.05). Results were processed by Excel (2010) and SPSS Version 17.0. RESULTS: It was found that callus growing on medium supplemented with 4 mg L-1 zeatin gave the maximum value (14.93%) of yield extract. Callus cultured on 4 mg L-1 zeatin recorded the maximum total phenol (268.33 mg GAE/100 g FW of callus) and total flavonoids (2703.33 MUg QE/100 g FW of callus) accumulation. The antioxidant activity of each extract was determined through DPPH radical scavenging activity. Callus cultured on 4 mg L-1 TDZ showed the highest antioxidant activity then those cultured on 4 mg L-1 zeatin. The HPLC analysis for phenolic acids showed that chlorogenic acid, rosmarinic acid and cinnamic reached their highest contents with callus cultured on 4 mg L-1 TDZ (123.24, 322.14 and 278.22 MUg g-1, respectively). Regarding flavonoids and using HPLC analysis, rutin, apigenin-7-glucoside and kaempferol were detected. Callus cultured with 4 mg L-1 TDZ gave the highest rutin and kaempferol contents (287.76 and 10.38 MUg g-1, respectively). However, apigenin-7-glucoside was detected with high content (129.86 MUg g-1) in callus culture with 4 mg L-1 Zeatin. CONCLUSION: The HPLC analysis recommended that TDZ is more effective in accumulation of individual phenolic and flavonoid than Zeatin. The present study provided a useful system for further study on in vitro culture of G. jasminoides as alternative and new source for important secondary products. PMID- 29023065 TI - Enzyme Digestive Activities During Ontogeny in Marosatherina ladigesi Larvae. AB - BACKGROUND AND OBJECTIVE: Marosatherina ladigesi, including native fish in South Sulawesi Indonesia, are vulnerable and must be preserved. The objective of the study was to examine known food consumption, survival, growth and the activities of digestive enzymes of M. ladigesi larvae. MATERIAL AND METHODS: The larvae were obtained from natural spawning and the mixed live feed: Infusoria sp., Daphnia sp. and Artemia salina were given twice a day. Feed intake, growth, survival, activities of protease, lipase and amylase enzymes were observed in ages 3, 5, 10, 15, 20, 25, 30, 35 Days after Hatching (DAH). Data were analyzed by following a complete randomized trial design. RESULTS: Activities of protease, amylase and lipase enzymes have been detected since 3 DAH. The protease enzyme activity was obtained at 0.438 U mL min-1 at 35 DAH, while amylase and lipase activities fluctuated. Activities of amylase and lipase reached 0105 and 0.093 U mL-1 min-1 at 15 DAH, respectively. The activity of the enzyme increased at the same age of 10-15 DAH larvae entering a phase of flexion. CONCLUSION: It was concluded that the use of mixed live feed Infusoria sp., Daphnia sp. and A. salina contribute to enzyme protease, lipase and amylase activities during the ontogeny stages of M. ladigesi. The highest activity of protease suggests that the fish have carnivorous feeding habits. The results of this study can be used to improve the maintenance technique of M. ladigesi larvae in order to accelerate growth and improve survival as an effort to increase the production of M. ladigesi. PMID- 29023066 TI - alpha-globin Alteration in alpha-thalassemia Disorder: Prediction and Interaction Defect. AB - BACKGROUND AND OBJECTIVE: The alpha-thalassemia is an inherited blood disorder affecting quality and quantity of hemoglobin. It caused mostly by deletion of one or two alpha-globin genes and characterized by deficient production of alpha globin chain in hemoglobin leading from mild anemia to lethal. The alpha-globin gene with partial deletion could reduce chain production or produce abnormal chain. Its effect depends on mechanism of chain production affected. This study aimed to analyze the effect of partial deletion in alpha-globin gene influencing the mechanisms to produce functional alpha-globin chain in alpha-thalassemia cases. MATERIALS AND METHOD: The three mutant genes from genebank were selected and processed. The analysis performed in deleted sequences determination, mRNA sequences, protein structures and protein chains interaction to form hemoglobin by SWISS MODEL, CHIMERA and SABLE Polyview 2D. RESULTS: The result showed 76 amino acids deleted in one mutant alpha-globin gene (V00516.1). The mutation gave effect in every mechanism of the alpha-globin chain conformation and production. It affected protein conformation by losing over half the helical chains. It reduced the function completely, in which, disturb hemoglobin A (HbA) production with emergence of beta-sheets conformation. CONCLUSION: The analysis concluded that the protein produced by the alpha-globin gene with partial deletion lost its function and unable to form hemoglobin. PMID- 29023067 TI - Studies on Staphylococcus aureus Isolated from Pimples. AB - BACKGROUND AND OBJECTIVE: Pimples (acne) are small skin lesions or inflammations of the skin. The most common factor causing acne is the hormonal changes that occur during adolescent and teenage years. Antibiotics are becoming less effective in the treatment of pimples due to increasing concerns of antibiotic resistance. This study was therefore carried out to characterize the isolates from the pimples of Covenant University Students and to determine their antibiotics sensitivity pattern. MATERIALS AND METHODS: A total of 20 swab samples were obtained from male and female students with obvious signs of pimples in Covenant University, Ota, Ogun State, Nigeria. The samples obtained were cultured on Mannitol Salt Agar and incubated at 37 degrees C. Pure isolates obtained were subjected to Gram staining and other biochemical tests for identification. The isolates were further subjected to antibiotics sensitivity tests using antibiotic dics. RESULTS: Macroscopic examination indicated that the organisms were convex, smooth and shiny. Microscopic examination revealed that the isolates were positive after employing the Gram Staining technique and they appeared as grape-like clusters. Biochemical tests revealed that the isolates were Coagulase positive, Catalase positive, Urease positive, Citrate positive, Methyl-Red positive, Voges-Proskauer negative and negative upon starch hydrolysis. The sugar fermentation tests revealed that the isolates fermented Glucose, Maltose, Galactose, Sucrose and Lactose, respectively. The antibiotic susceptibility test showed that isolates were resistant to Cotrimazole, Cloxacillin, Erythromycin, Gentamycin, Augmentin, Streptomycin, Tetracycline and Chloramphenicol. CONCLUSION: The results therefore indicated that the isolates were Staphylococcus aureus and other staphylococci species. Indiscriminate use of antibiotics should be avoided to prevent the development of resistant strains of the Staphylococci genera and other pathogenic organisms. PMID- 29023068 TI - Zeatin and Thidiazuron Induced Embryogenic Calli From In Vitro Leaf and Stem of Jojoba (Simmondsia chinensis). AB - BACKGROUND AND OBJECTIVE: Jojoba is a promising industrial plant, which recommended with pharmaceutical benefits. The present study was conducted to stimulate embryogenic calli formation from jojoba using zeatin and thidiazuron (TDZ), as well as determination of the antioxidant activity of proliferated calli. MATERIALS AND METHODS: For callus induction, leaf and stem explants derived from in vitro grown shootlets, were cultured on Murashige and Skoog (MS) medium with different combinations of 0.5 mg L-1 benzyl adenine (BA) or kinetin with 2,4-Dichlorophenoxyacetic acid (2,4-D), Naphthalene acetic acid (NAA) and picloram at 0.5 or 1mg L-1. To stimulate embryogenic calli, friable callus were transferred to woody plant medium (WPM) supplemented with different concentrations of zeatin or TDZ. Antioxidant activity of different treatments was determined using hexane or petroleum ether extraction. Data was analyzed as mean+/-standard deviation (SD). RESULTS: The MS medium supplemented with 0.5 mg L 1 BA+0.5 or 1 mg L-1 picloram was the best treatment to obtain friable calli from both explants types. WPM medium supplemented with 2 mg L-1 zeatin gave the highest percentage of embryogenic calli derived from leaf explants. While the highest percentage of embryogenic calli derived from stem explants was registered using 1 or 4 mg L-1 TDZ containing medium. Embryogenic calli originated from leaves explants on 1.5 mg L-1 zeatin showed promising activity of antioxidant with hexane extraction. However, embryogenic calli originated from stem explants on 1 mg L-1 TDZ showed the highest antioxidant activity with petroleum ether extraction. CONCLUSION: TDZ has promising effect on embryogenic callus induction from stem explants. While, zeatin has promising effect on embryogenic callus induction from leaf explants. PMID- 29023069 TI - Histological Characteristics on the Testes of Mud Spiny Lobster, Panulirus polyphagus (Herbst, 1793). AB - BACKGROUND AND OBJECTIVE: Mud spiny lobsters, Panulirus polyphagus (P. polyphagus) are one of the most important fisheries resources now-a-days due to quality that it's possessed. However, there is still lack of in-depth study about this species mainly on males testicular characteristics and sexual maturity size. Therefore, the present study was carried out to investigate the histological characteristics on the testes and sexual maturity sizes of mud spiny lobster, Panulirus polyphagus. MATERIALS AND METHODS: The testes were dissected out and fixed in 10% buffered formalin solution for 11 h, dehydrated in 70% alcohol and lastly placed in tissue processor for 18+/-1 h at 60 degrees C. The tissues blocks were cut at the thickness of 4 MUm on a rotary microtome. Stained tissues were taken under Advance Microscope (Nikon Eclipse 80i Nomarski DIC). Collected data were analyzed using Microsoft Excel 2013. Data were presented as mean+/ standard deviation. Statistical analyses were done using one-way ANOVA using SPSS (Version 22). RESULTS: These lobules of mature P. polyphagus were formed via different germinative lineage cells such as spermatogonia, spermatocytes, spermatids and spermatozoa. The histological characteristics of testes showed that the process of spermatogenesis went through the stages of four testes maturation which were spermatogonia I and II, spermatocytes I and II, spermatids and spermatozoa stages within different body weight of P. polyphagus. It was found that there were significant difference between body weight and carapace length to the testicular maturation stages (one-way ANOVA and p = 0.000). CONCLUSION: The results of this experiment indicated that males P. polyphagus have four stages of testes maturation and can be considered to have fully mature testes that ready for fertilization at 452 g body weight (BW) and 107 mm carapace length (CL) or more. PMID- 29023070 TI - Effect of some Evaporation Matters on Storability of Sunflower ( Helianthus annuus L.) Seed. AB - BACKGROUND AND OBJECTIVE: This study focuses on finding compounds that are safe to humans and environment, such as propionic and acetic acids that may provide an alternative control of seed-borne pathogens and decrease seed deterioration during storage. The objectives of this study were to reduce sunflower seed deterioration and improve the viability of sunflower seed using environmentally safe organic acids. MATERIALS AND METHODS: Propionic and acetic acids were applied on sunflower seed at different concentrations under laboratory conditions during different storage periods. After 6 months storage period, the viability of sunflower seed as well as morphological and physiological characteristics of seedlings were evaluated under greenhouse conditions. Laboratory experiment was conducted in a factorial completely randomized design and randomized complete block design for greenhouse experiment. RESULTS: Propionic and acetic acids at different concentrations showed inhibitory effects on the presence of different fungal genera in all storage periods. Propionic acid was most effective followed by acetic acid. Increasing storage periods from 0-6 months significantly decreased germination percentage, germination energy, seedling characters, survived healthy seedlings and seed oil and protein percentages but dead and rotted seeds, as well as rotted seedlings were increased. Treating sunflower seeds with propionic acid (100%) improved germination criteria, seedling characters and seed chemical characters as well as survival seedlings and minimized the dead seeds, rotted seeds and rotted seedlings as compared with the control under all storage periods. Under greenhouse conditions, the maximum growth parameter and physiological characters (chlorophylls a, b, carotenoids and total phenols) were recorded from seed treated with 100% propionic acid after 6 months of storage. CONCLUSION: It may be concluded that propionic and acetic acids vapors can have considerable fungicidal activity against sunflower pathogens and improve seed viability. Therefore, it is recommended using 100% propionic acid to reduce deterioration and seed-borne pathogens of sunflower under storage conditions. PMID- 29023071 TI - Enhancement of a Novel Isolate of Serratia plymuthica as Potential Candidate for an Antianthracnose. AB - BACKGROUND AND OBJECTIVE: A new rhizobacteria isolate of Serratia plymuthica (strain UBCR_12) exhibited a promising potential as a biocontrol agent for anthracnose causing agent Colletotrichum gloeosporioides. The aim of this study was to characterize its antagonistic activity and explore the factors contributing to a higher inhibition activity. MATERIALS AND METHODS: The antifungal effect of UBCR_12 against C. gloeosporioides was assayed under various pH values and nutritional sources. Culture supernatant obtained from UBCR_12 and C. gloeosporioides co-culture was also tested for its inhibitory activity. In addition, the antagonistic range of this isolate was examined against Sclerotium rolfsii and Fusarium oxysporum. Statistical analysis was done using one way analysis of variance and further processed using Fisher's Least Significant Difference (LSD) test with a p<0.05. RESULTS: The UBCR_12 induced inhibition was shown to be stable over time at pH 7, while peptone addition led to a faster induction (2 days after treatment) and glucose treatment to a higher activity. Of all these modifications, preliminary co-culture experiments with fungal cells resulted in the best antagonistic activity of UBCR_12 culture supernatant of about 30.66%. This isolate also showed a wide range of antagonistic activity due to its high suppression against S. rolfsii and F. oxysporum from soybean. CONCLUSION: Both environmental and biotic manipulations contributed an elevated inhibition rate of UBCR_12 against C. gloeosporioides. A proportional combination of the factors stimulating antagonistic activity of this strain is recommended to be utilized for the development of this strain as an antianthracnose. The enhanced antifungal effects of UBCR_12 resulted under each type of modification were varied indicating the difference of cell responses. It suggests that certain antifungal mechanism could be generated by modifying the environmental factor required for its induction. In addition, the application of cell-free culture supernatant provides an alternative solution in the utilization of biocontrol agents. For large scale application, it could minimize the risk of population outbreaks and harmful effects due to the living cells application. PMID- 29023072 TI - Toxicity of Cypermethrin and Chlorpyrifos Against German Cockroach [ Blattella germanica (Blattaria: Blattellidae)] Strains from Hamadan, Iran. AB - BACKGROUND: German cockroach has relatively short life cycle and reproduce rapidly. It is the most common medically and public health pest. As a result, it is essential to combat this pest. Cypermethrin and chlorpyrifos are used by private companies in Hamadan to control Blattella germanica. It seems necessary to determine its susceptibility levels to these insecticides. OBJECTIVE: The aim of this study was to determine the susceptibility levels of B. germanica strains to cypermethrin and chlorpyrifos in Hamadan. MATERIALS AND METHODS: In this study, the German cockroach strains were collected from two hospitals (Fatemiyeh and Atiyeh) in Hamadan and transfered to the insectarium. The cockroach strains were reared under the same laboratory condition. Then their sensitivity levels were considered to 1, 2, 4, 8 and 16 mg m -2 for cypermethrin and 0.82, 1.65, 3.31, 6.63, 9.945 and 13.26 mg m -2 for chlorpyrifos using surface contact method. RESULTS: Results based on insecticide treated doses, B. germanica strains showed different percent mortality to the insecticides ranged from 13.3-100. The LD 50 and LD 90 and regression lines of the treated insecticides against German cockroach strains indicate that Fatemiyeh Hospital strain is more susceptible to the treated insecticides than Atiyeh Hospital strain. The LD 50 and LD 90 of chlorpyrifos are also lower than cypermethrin, indicated that chlorpyrifos is more effective than cypermethrin against German cockroach. As the slopes of the regression lines are observed mild in this study indicate that the population of the cockroach strains is very heterogeneous. It can be a symbol of insecticides resistance to cypermethrin and chlorpyrifos. CONCLUSION: As chlorpyrifos and cypermethrin insecticides are also used for residual spraying by private companies and the doses which provide more than 90% mortality are below the WHO recommended insecticide doses. Therefore, chlorpyrifos and cypermethrin insecticides can be used for B. germanica control in Hamadan within regular monitoring and preventive measures of resistance. PMID- 29023073 TI - Reproductive Biology of Sardinella sp. (Sardinella aurita and Sardinella maderensis) in the South of Morocco. AB - BACKGROUND AND OBJECTIVE: Sardinella sp. has gained much attention lately because of its biomass increase, which might be the result of climatic changes occurring across the Atlantic sea. Little information is known about reproduction of these species particularly in the Moroccan Atlantic area. The objective of the this study was to explore some aspects of the reproductive biology of Sardinella in the South of Atlantic Moroccan coast. MATERIALS AND METHODS: Monthly samples were collected during the period between February, 2015 and January, 2016 in the area between Cape Boujdor and Cape Blanc. The data collected concerned the measure of the total length, the weight, the gonad weight as well as the sex and maturity stages. The chi2 test was used to compare the differences between both sexes and the ANOVA test was adopted to analyze the data variation. RESULTS: Sardinella sp. is a gonochoristic fish. The overall female to male ratio was not statistically different for both species (chi2 = 0.68 for Sardinella aurita and chi2 = 1.04 for Sardinella maderensis), although it varied seasonally and according to the length of the fish. The monthly changes in the gonadosomatic index and the macroscopic characteristics of gonads showed that round Sardinella in the South of Morocco spawns between February and July and between November and December with a spawning peak on April. For the flat Sardinella, it spawns between February and March and in July with a spawning peak on July. Females round Sardinella reach first sexual maturity at a smaller size than males (26.17 and 26.78 cm, respectively). Concerning the flat Sardinella, it was the opposite. Males reaching sexual maturity are smaller than females (20.75 and 21.76 cm, respectively). CONCLUSION: It is concluded that the size at first maturity revealed that mature females in the South of Moroccan Atlantic Ocean were smaller than males for the round Sardinella and the opposite was observed for the flat Sardinella. The spawning of S. aurita presented a pick in April and for S. maderensis in July. As a shared stock these findings will be used for stock assessment in the North West Africa area. PMID- 29023074 TI - Bacterial Quality of Urinary Tract Infections in Diabetic and Non Diabetics of the Population of Ma'an Province, Jordan. AB - BACKGROUND AND OBJECTIVE: The patients with Diabetes Mellitus (DM) have malfunction in bladder which prompt urine accumulation in its pool which serves a decent situation to the microbes to be develop and cause Urinary Tract Infection (UTI). The UTI is the most infectious disease that affects both males and females. This study was designed to detect the bacterial species responsible for UTI in both diabetic and non-diabetic patients in Ma'an province, Jordan. MATERIALS AND METHODS: One hundred sixteen urine samples were investigated to determine UTI-causing bacteria. These samples distributed unequally between diabetic male (12) and diabetic female (25) and also non-diabetic male (13) and non-diabetic female (66). RESULTS: It was observed that E. coli is responsible for large proportion (44.8%) of UTI in both diabetic (15.5%) and non-diabetic (29.3%) patients. This study showed inequality in the bacterial species that were isolated from both diabetic and non-diabetic samples. However, five bacterial species including E. aerogenes, E. cloacae, C. freundii, A. baumannii and B. subtilis did not exist in all diabetic samples. Treatment of UTI in both diabetic and non-diabetic patients with chloramphenicol (30 MUg), ciprofloxacin (5 MUg) and vancomycin (30 MUg) resulted in more favorability than other antibiotics. At the same time cephalothin (30 MUg) was not recommended. CONCLUSION: Escherichia coli was the prevailing bacterial infections among those which were isolated from patients with UTI. Certain forms of bacterial infections inclined to be extra common in diabetic patients than others and other infections may be more severe in people with diabetics than in non diabetics. PMID- 29023075 TI - Evaluation of MiR-21 and MiR-10b Expression of Human Breast Cancer in West Sumatera. AB - BACKGROUND: Abnormal expression of several microRNAs (miRNAs) has been demonstrated in many types of cancer tumor tissue. The miR-10b and miR-21 are an oncogenic miRNAs which play role in proliferation and invasion of Breast Cancer (BC) tumorigenesis. The aim of this study was to evaluate the miR-21 and miR-10b expression in BC in West Sumatran women, Indonesia. MATERIALS AND METHODS: A total of 40 samples, consisting of 30 samples of breast cancer tissues (BC) and 10 samples of fibroadenoma tissues (FATs) as control and non-cancerous were analyzed. The miR-21 and miR-10b expression of each sample were investigated by using realtime PCR, followed by universal Reverse Transcription (RT) then real time PCR amplification with specific primers. Hsa-miR-16-5p LNA PCR primer was used as an endogenous control. RESULTS: The results showed that the expression level of miR-21 was more than 4 times higher in BC than in FATs. The expression level of miR-10b was lower in BC than FATs, by a factor of 3.34 fold. Both these differences were statistically different (p = 0.001). CONCLUSION: In this study it was concluded that for this sample of West Sumatran Women miR-21 expression in BC was higher than in FATs, whereas miR-10b was lower in BC than in FATs. PMID- 29023076 TI - Flavonoid Production, Growth and Differentiation of Stelechocarpus burahol (Bl.) Hook. F. and Th. Cell Suspension Culture. AB - BACKGROUND AND OBJECTIVE: Stelechocarpus burahol is a plant containing flavonoid compounds that have the potential for use as an antihyperuricemic for gout medication. This study was performed to assess flavonoid production, growth and cell differentiation of S. burahol in cell suspension culture. METHODOLOGY: Mesocarp was planted in Murashige and Skoog (MS) medium supplemented with 7.5 mg L-1 picloram for the induction of callus. Non-embryonic callus obtained was used in the formation of cell suspension cultures. Growth of cells was determined by fresh and dry weights. During the culturing, the fresh weight, dry weight and flavonoid content were determined as a result of culture status. RESULTS: The growth of the S. burahol cell suspension was slow, the stationary phase occurred at 30 days. The production of flavonoids was not in line with the growth of cells and the maximum production occurred on the 15th day of the log phase. The globular-shaped cells dominated the cell suspension culture at all ages. Fluorescein diacetate (FDA) staining of cells derived from cell cultures aged for 36 days showed that some cells were still viable. CONCLUSION: The results show that flavonoid production, growth and cell differentiation of a S. burahol cell suspension culture differed according to the culture age. PMID- 29023077 TI - Spermatogenic and Phylo-molecular Characterizations of Isolated Fasciola Spp. From Cattle, North West Iran. AB - BACKGROUND AND OBJECTIVE: Fascioliasis is economically important to the livestock industry that caused with Fasciola hepatica and Fasciola gigantica. The objective of this study was to identify these two species F. hepatica and F. gigantica by using nuclear and mitochondrial markers (ITS1, ND1 and CO1) and have been employed to analyze intraspecific phylogenetic relations of Fasciola spp. MATERIALS AND METHODS: Approximately 150 Fasciola specimens were collected, then stained with haematoxylin-carmine dye and observed under an optical microscope to examine for the existence of sperm. The ITS1 marker was used to identify different Fasciola and phylogenetic analysis based on ND1 and CO1 sequence data were conducted by maximum likelihood algorithm. RESULTS: Fasciola samples were separated into 2 groups. Almost all specimens had many sperms in the seminal vesicle (spermic fluke) and one fluke did not contain any sperm in the seminal vesicle. The aspermic sample had F. gigantica RFLP pattern with ITS1 gene. Phylogenetic analysis based on NDI and COI sequence data were conducted by maximum likelihood showed a similar topology of the trees obtained particularly for F. hepatica and F. gigantica. CONCLUSION: This study demonstrated that aspermic Fasciola found in this region of Iran has same genetic structures through the spermic F. gigantica populations in accordance to phylogenetic tree. PMID- 29023079 TI - Risk of acute STEMI significantly increased in younger smokers. PMID- 29023078 TI - Polymorphism of Insulin-like Growth Factor 1 Gene (IGF1/TasI, IGF1/SnaBI, IGF1/RsaI) and the Association with Daily Gain of Pesisir Cattle Local Breed from West Sumatera, Indonesia. AB - BACKGROUND AND OBJECTIVE: The insulin-like growth factor 1 gene (IGF1) is a candidate gene for marker-assisted selection strategies. Two single nucleotide polymorphism of IGF1 gene namely IGF1/SnaBI and IGF1/TasI has been reported to be associated with production traits in several cattle breeds. One single nucleotide polymorphism in exon 4 namely IGF1/Rsa1 has a significant influence (p<0.01) on birth weight, weaning weight and average daily gain of Bali cattle. The objective of this study was to determine the IGF1/SnaBI, IGF1/TasI and IGF1/RsaI polymorphisms and their associations with average daily gain in Pesisir cattle local breed from west Sumatera Indonesia. METHODOLOGY: The isolation of DNA from 183 blood sample was performed using DNA extraction kit (Promega DNA purification kit) following the manufacture procedure. The amplification of IGF1 fragment was done by master mix from Thermo Scientific. RESULTS: In the case of the IGF1/SnaBI polymorphism, three genotypes were observed, frequencies were 0.011, 0.011 and 0.978 for AA, AB and BB, respectively. This gives frequencies of 0.064 and 0.9836 for A and B alleles. For IGF1-TasI locus showed that AA genotype occurred with a frequency of 0.978, AC with 0.011 and CC with 0.011 with frequency for allele A and C were 0.9836 and 0.0164, respectively. In the case IGF1/RsaI polymorphism produces only TT and CT genotype with frequency 0.027 and 0.973 respectively and frequency of T and C allele were 0.5137 and 0.4863, respectively. CONCLUSION: Among these 3 polymorphism only IGF1/RsaI was associated with average daily gain, Thus this polymorphism could be a potential for improving body weight in Pesisir cattle. Association study for IGF1/SnaBI and IGF1/TasI were strongly limited by low frequency of one allele. PMID- 29023080 TI - Depression is linked to dementia in older adults. AB - Depression and dementia are both common conditions in older people, and they frequently occur together. Late life depression affects about 3.0-4.5% of adults aged 65 and older. Depression occurs in up to 20% of patients with Alzheimer's disease and up to 45% of patients with vascular dementia. Rather than a risk factor, depression with onset in later life is more likely to be either prodromal to dementia or a condition that unmasks pre-existing cognitive impairment by compromising cognitive reserve. Depression can be a psychological response to receiving a diagnosis of dementia. The distinction between depression and early dementia may be particularly difficult. Detailed histories obtained from patients and their relatives as well as longitudinal follow-up are important. Cognitive testing can be very helpful. It is preferable to use a neuropsychological test that is sensitive to subtle cognitive changes and assesses all cognitive domains, such as the Montreal Cognitive Assessment. Older people with depression are at raised risk of dementia and this risk is increased if they have had symptoms for a long time, if their symptoms are severe, where there are multiple (vascular) comorbidities, and where there are structural brain changes including hippocampal atrophy and white matter abnormalities. PMID- 29023081 TI - Frailty predicts adverse outcomes in older people with diabetes. AB - The greatest proportional increase in the number of people with diabetes by age group is predicted to occur in those aged 60 to 79. In older people living with diabetes, geriatric syndromes, which indicate frailty, are emerging as a third category of complications in addition to the traditional microvascular and macrovascular sequelae. Frailty is defined by the presence of three or more phenotypes (weight loss, weakness, decreased physical activity, exhaustion and slow gait speed). The presence of one or two phenotypes describes a pre-frail state, and the absence of phenotypes describes a non-frail person. Sarcopenia, or loss of muscle mass, is the muscular manifestation of frailty phenotype and is defined as a generalised loss of skeletal muscle mass and strength that leads to low physical performance. Persistent hyperglycaemia has been shown to be associated with poor muscle quality, performance and strength independent of age, race, sex, weight, height and physical activity. The coexistence of dementia and diabetes also increases the risk of frailty. There is evidence that midlife behaviours such as smoking, alcohol consumption, poor diet and low levels of physical activity are associated with frailty and dementia in later life. Frailty is a dynamic condition which can worsen or improve over time. Patients may progress from a non-frail to pre-frail or frail state. With timely intervention, there is a greater chance for an individual to recover from pre-frail to non frail than to deteriorate into frailty. The progression of frailty is likely to be multifactorial, therefore multimodal intervention, including maintenance of adequate nutrition, physical exercise, and glycaemic control, may help to delay or prevent the development of frailty and to improve outcomes. PMID- 29023087 TI - Simulations of a Graphene Nanoflake as a Nanovector To Improve ZnPc Phototherapy Toxicity: From Vacuum to Cell Membrane. AB - We propose a new approach to improving photodynamic therapy (PDT) by transporting zinc phthalocyanine (ZnPc) in biological systems via a graphene nanoflake, to increase its targeting. Indeed, by means of time-dependent density functional theory simulations, we show that the ZnPc molecule in interaction with a graphene nanoflake preserves its optical properties not only in a vacuum but also in water. Moreover, molecular dynamic simulations demonstrate that the graphene nanoflake/ZnPc association, as a carrier, permits one to stabilize the ZnPc/graphene nanoflake system on the cellular membrane, which was not possible when using ZnPc alone. We finally conclude that the graphene nanoflake is a good candidate to transport and stabilize the ZnPc molecule near the cell membrane for a longer time than the isolated ZnPc molecule. In this way, the choice of the graphene nanoflake as a nanovector paves the way to ZnPc PDT improvement. PMID- 29023082 TI - Be vigilant for skin manifestations of inherited cancer syndromes. AB - More than 200 hereditary cancer susceptibility syndromes have been described, and it is thought that they account for 5-10% of all cancers. Many have dermatological manifestations (usually lesions, occasionally rashes) which frequently precede other systemic pathology. Dermatological signs are usually non specific and often trivial in appearance, making their significance easy to overlook and a clinical diagnosis challenging. Histological examination is often required to differentiate lesions. They are usually benign and pathologically unrelated to the primary tumours, with the exception of the atypical moles of the dysplastic naevus syndrome, and may present simply as a cosmetic problem for the patient. However, a number of cancer syndromes exhibit an increased risk of developing malignant skin lesions. For instance, Gorlin syndrome (nevoid basal cell carcinoma syndrome) which typically results in the development of multiple basal cell carcinomas, within the first few decades of life. The majority of cancer syndromes with skin signs are inherited in an autosomal dominant pattern demonstrating complete penetrance before the age of 70. Once a cancer syndrome has been diagnosed, the cornerstone of management is frequent surveillance for the early detection and treatment of malignancy. Genetic testing and counselling should be offered to family members. PMID- 29023088 TI - Strong Photoluminescence Enhancement in All-Dielectric Fano Metasurface with High Quality Factor. AB - All-dielectric metamaterials offer great flexibility for controlling light-matter interaction, owing to their strong electric and magnetic resonances with negligible loss at wavelengths above the material bandgap. Here, we propose an all-dielectric asymmetric metasurface structure exhibiting high quality factor and prominent Fano line shape. Over three-orders photoluminescence enhancement is demonstrated in the fabricated all-dielectric metasurface with record-high quality factor of 1011. We find this strong emission enhancement is attributed to the coherent Fano resonances, which originate from the destructive interferences of antisymmetric displacement currents in the asymmetric all-dielectric metasurface. Our observations show a promising approach to realize light emitters based on all-dielectric metasurfaces. PMID- 29023090 TI - Comment on "Resource Footprints are Good Proxies of Environmental Damage". PMID- 29023089 TI - Gelatin-Polyaniline Composite Nanofibers Enhanced Excitation-Contraction Coupling System Maturation in Myotubes. AB - In this study, composite gelatin-polyaniline (PANI) nanofibers doped with camphorsulfonic acid (CSA) were fabricated by electrospinning and used as substrates to culture C2C12 myoblast cells. We observed enhanced myotube formation on composite gelatin-PANI nanofibers compared to gelatin nanofibers, concomitantly with enhanced myotube maturation. Thus, in myotubes, intracellular organization, colocalization of the dihydropyridine receptor (DHPR) and ryanodine receptor (RyR), expression of genes correlated to the excitation-contraction (E C) coupling apparatus, calcium transients, and myotube contractibility were increased. Such composite material scaffolds combining topographical and electrically conductive cues may be useful to direct skeletal muscle cell organization and to improve cellular maturation, functionality, and tissue formation. PMID- 29023091 TI - Correction to "Detection of Orexin A Neuropeptide in Biological Fluids Using a Zinc Oxide Field Effect Transistor". PMID- 29023092 TI - Effect of the Flexible Regions of the Oncoprotein Mouse Double Minute X on Inhibitor Binding Affinity. AB - The oncoprotein MdmX (mouse double minute X) is highly homologous to Mdm2 (mouse double minute 2) in terms of their amino acid sequences and three-dimensional conformations, but Mdm2 inhibitors exhibit very weak affinity for MdmX, providing an excellent model for exploring how protein conformation distinguishes and alters inhibitor binding. The intrinsic conformation flexibility of proteins plays pivotal roles in determining and predicting the binding properties and the design of inhibitors. Although the molecular dynamics simulation approach enables us to understand protein-ligand interactions, the mechanism underlying how a flexible binding pocket adapts an inhibitor has been less explored experimentally. In this work, we have investigated how the intrinsic flexible regions of the N-terminal domain of MdmX (N-MdmX) affect the affinity of the Mdm2 inhibitor nutlin-3a using protein engineering. Guided by heteronuclear nuclear Overhauser effect measurements, we identified the flexible regions that affect inhibitor binding affinity around the ligand-binding pocket on N-MdmX. A disulfide engineering mutant, N-MdmXC25-C110/C76-C88, which incorporated two staples to rigidify the ligand-binding pocket, allowed an affinity for nutlin-3a higher than that of wild-type N-MdmX (Kd ~ 0.48 vs Kd ~ 20.3 MUM). Therefore, this mutant provides not only an effective protein model for screening and designing of MdmX inhibitors but also a valuable clue for enhancing the intermolecular interactions of the pharmacophores of a ligand with pronounced flexible regions. In addition, our results revealed an allosteric ligand-binding mechanism of N-MdmX in which the ligand initially interacts with a compact core, followed by augmenting intermolecular interactions with intrinsic flexible regions. This strategy should also be applicable to many other protein targets to accelerate drug discovery. PMID- 29023094 TI - High-Speed Atomic Force Microscopy Visualization of the Dynamics of the Multienzyme Fatty Acid Synthase. AB - Multienzymes, such as the protein metazoan fatty acid synthase (FAS), are giant and highly dynamic molecular machines for critical biosynthetic processes. The molecular architecture of FAS was elucidated by static high-resolution crystallographic analysis, while electron microscopy revealed large-scale conformational variability in FAS with some correlation to functional states in catalysis. However, little is known about time scales of conformational dynamics, the trajectory of motions in individual FAS molecules, and the extent of coupling between catalysis and structural changes. Here, we present an experimental single molecule approach to film immobilized or selectively tethered FAS in solution at different viewing angles and high spatiotemporal resolution using high-speed atomic force microscopy. Mobility of individual regions of the multienzyme is recognized in video sequences, and correlation of shape features implies a convergence of temporal resolution and velocity of FAS dynamics. Conformational variety can be identified and grouped by reference-free 2D class averaging, enabling the tracking of conformational transitions in movies. The approach presented here is suited for comprehensive studies of the dynamics of FAS and other multienzymes in aqueous solution at the single-molecule level. PMID- 29023095 TI - Capacitive Sensing of Glucose in Electrolytes Using Graphene Quantum Capacitance Varactors. AB - A novel graphene-based variable capacitor (varactor) that senses glucose based on the quantum capacitance effect was successfully developed. The sensor utilizes a metal-oxide-graphene varactor device structure that is inherently compatible with passive wireless sensing, a key advantage for in vivo glucose sensing. The graphene varactors were functionalized with pyrene-1-boronic acid (PBA) by self assembly driven by pi-pi interactions. Successful surface functionalization was confirmed by both Raman spectroscopy and capacitance-voltage characterization of the devices. Through glucose binding to the PBA, the glucose concentration in the buffer solutions modulates the level of electrostatic doping of the graphene surface to different degrees, which leads to capacitance changes and Dirac voltage shifts. These responses to the glucose concentration were shown to be reproducible and reversible over multiple measurement cycles, suggesting promise for eventual use in wireless glucose monitoring. PMID- 29023093 TI - A Fluorescent Probe with Improved Water Solubility Permits the Analysis of Protein S-Depalmitoylation Activity in Live Cells. AB - S-Palmitoylation is an abundant lipid post-translational modification that is dynamically installed on and removed from target proteins to regulate their activity and cellular localization. A dearth of tools for studying the activities and regulation of protein S-depalmitoylases, thioesterase "erasers" of protein cysteine S-palmitoylation, has contributed to an incomplete understanding of the role of dynamic S-palmitoylation in regulating proteome lipidation. Recently, we developed "depalmitoylation probes" (DPPs), small molecule probes that become fluorescent upon S-depalmitoylase enzymatic activity. To be suitable for application in live cells, the first-generation DPPs relied on a shorter lipid substrate (C8 vs naturally occurring C16), which enhanced solubility and cell permeability. However, the use of an unnatural lipid substrate on the probes potentially limits the utility of the approach. Herein, we present a new member of the DPP family, DPP-5, which features an anionic carboxylate functional group that increases the probe water solubility. The enhanced water solubility of DPP-5 permits the use of a natural, palmitoylated substrate (C16), rather than a surrogate lipid. We show that DPP-5 is capable of monitoring endogenous S depalmitoylases in live mammalian cells and that it can reveal changes in S depalmitoylation levels due to lipid stress. DPP-5 should prove to be a useful new tool for probing the regulation of proteome lipidation through dynamic S depalmitoylation. PMID- 29023096 TI - Graphene Liquid Enclosure for Single-Molecule Analysis of Membrane Proteins in Whole Cells Using Electron Microscopy. AB - Membrane proteins govern many important functions in cells via dynamic oligomerization into active complexes. However, analytical methods to study their distribution and functional state in relation to the cellular structure are currently limited. Here, we introduce a technique for studying single-membrane proteins within their native context of the intact plasma membrane. SKBR3 breast cancer cells were grown on silicon microchips with thin silicon nitride windows. The cells were fixed, and the epidermal growth factor receptor ErbB2 was specifically labeled with quantum dot (QD) nanoparticles. For correlative fluorescence- and liquid-phase electron microscopy, we enclosed the liquid samples by chemical vapor deposited (CVD) graphene films. Depending on the local cell thickness, QD labels were imaged with a spatial resolution of 2 nm at a low electron dose. The distribution and stoichiometric assembly of ErbB2 receptors were determined at several different cellular locations, including tunneling nanotubes, where we found higher levels of homodimerization at the connecting sites. This experimental approach is applicable to a wide range of cell lines and membrane proteins and particularly suitable for studies involving both inter- and intracellular heterogeneity in protein distribution and expression. PMID- 29023097 TI - Isolation and Characterization of Few-Layer Manganese Thiophosphite. AB - This work reports an experimental study on an antiferromagnetic honeycomb lattice of MnPS3 that couples the valley degree of freedom to a macroscopic antiferromagnetic order. The crystal structure of MnPS3 is identified by high resolution scanning transmission electron microscopy. Layer-dependent angle resolved polarized Raman fingerprints of the MnPS3 crystal are obtained, and the Raman peak at 383 cm-1 exhibits 100% polarity. Temperature dependences of anisotropic magnetic susceptibility of the MnPS3 crystal are measured in a superconducting quantum interference device. Anisotropic behaviors of the magnetic moment are explored on the basis of the mean field approximation model. Ambipolar electronic conducting channels in MnPS3 are realized by the liquid gating technique. The conducting channel of MnPS3 offers a platform for exploring the spin/valleytronics and magnetic orders in 2D limitation. PMID- 29023098 TI - Multigenerational Effects of the Antibiotic Tetracycline on Transcriptional Responses of Daphnia magna and Its Relationship to Higher Levels of Biological Organizations. AB - Given the risk of environmental pollution by pharmaceutical compounds and the effects of these compounds on exposed ecosystems, ecologically relevant and realistic assessments are required. However, many studies have been mostly focused on individual responses in a single generation exposed to one-effect concentrations. Here, transcriptional responses of the crustacean Daphnia magna to the antibiotic tetracycline across multiple generations and effect concentrations were investigated. The results demonstrated that tetracycline induced different transcriptional responses of daphnids that were dependent on dose and generation. For example, reproduction-related expressed sequence tags (ESTs), including vitellogenin, were distinctly related to the dose-dependent tetracycline exposure, whereas multigenerational exposure induced significant change of molting-related ESTs such as cuticle protein. A total of 65 ESTs were shared in all contrasts, suggesting a conserved mechanism of tetracycline toxicity regardless of exposure concentration or time. Most of them were associated with general stress responses including translation, protein and carbohydrate metabolism, and oxidative phosphorylation. In addition, effects across the dose-response curve showed higher correlative connections among transcriptional, physiological, and individual responses than multigenerational effects. In the multigenerational exposure, the connectivity between adjacent generations decreased with increasing generation number. The results clearly highlight that exposure concentration and time trigger different mechanisms and functions, providing further evidence that multigenerational and dose-response effects cannot be neglected in environmental risk assessment. PMID- 29023099 TI - Fabrication of Novel Electrochemical Biosensor Based on Graphene Nanohybrid to Detect H2O2 Released from Living Cells with Ultrahigh Performance. AB - In this paper, a new class of metal-free nanocarbon catalyst-nitrogen (N) and sulfur (S) codoped graphene quantum dot/graphene (NS-GQD/G) hybrid nanosheets-was designed and synthesized for sensitive detection of hydrogen peroxide (H2O2). NS GQD/G was prepared through two steps. First, graphene quantum dots (GQDs) were self-assembled on graphene nanoplatelets via hydrothermal treatment to constitute hybrid nanosheets, followed by a thermal annealing procedure using the hybrid nanosheets and thiourea to form the NS-GQD/G hybrid nanosheets. This hybrid material possessed high specific surface area, numerous doping sites and edges, and high electrical conductivity, which leads to ultrahigh performance toward H2O2 electrocatalysis reduction. Under the optimal experimental conditions, the proposed H2O2 sensor displayed an extended linear response in the range from 0.4 MUM to 33 mM with a low detection limit of 26 nM (S/N = 3). In addition to desirable selectivity, ideal reproducibility, and long-time stability, this H2O2 sensor exhibited desirable performance in detecting H2O2 in the human serum samples and that released from Raw 264.7 cells. Therefore, the novel NS-GQD/G nanocomposite was a promising metal-free material in the fields of electrochemical sensing and bioanalysis. PMID- 29023100 TI - Surface-Enhanced Raman Scattering for Label-Free Living Single Cell Analysis. AB - Single cell analysis is an active research area with the hope that cellular process can be deciphered from a single living cell other than a cell population. Surface enhanced Raman scattering (SERS) has been increasingly investigated for single cell analysis with its ability to provide information about real-time dynamics of molecular processes taking place in living cells, especially upon external stimulation, in a contactless, noninvasive, and nondestructive way. In this perspective, the fundamental concepts of single cell-SERS analysis including origin of spectral bands and experimental parameters for spectral reproducibility are summarized along with the recent developments. PMID- 29023101 TI - Biosynthesis of Nucleoside Diphosphoramidates in Campylobacter jejuni. AB - Campylobacter jejuni is a pathogenic Gram-negative bacterium and a leading cause of food-borne gastroenteritis. C. jejuni produces a capsular polysaccharide (CPS) that contains a unique O-methyl phosphoramidate modification (MeOPN). Recently, the first step in the biosynthetic pathway for the assembly of the MeOPN modification to the CPS was elucidated. It was shown that the enzyme Cj1418 catalyzes the phosphorylation of the amide nitrogen of l-glutamine to form l glutamine phosphate. In this investigation, the metabolic fate of l-glutamine phosphate was determined. The enzyme Cj1416 catalyzes the displacement of pyrophosphate from MgCTP by l-glutamine phosphate to form CDP-l-glutamine. The enzyme Cj1417 subsequently catalyzes the hydrolysis of CDP-l-glutamine to generate cytidine diphosphoramidate and l-glutamate. The structures of the two novel intermediates, CDP-l-glutamine and cytidine diphosphoramidate, were confirmed by 31P nuclear magnetic resonance spectroscopy and mass spectrometry. It is proposed that the enzyme Cj1416 be named CTP:phosphoglutamine cytidylyltransferase and that the enzyme Cj1417 be named gamma-glutamyl-CDP amidate hydrolase. PMID- 29023102 TI - Ubiquitin-Proteasome System Regulation of an Evolutionarily Conserved RNA Polymerase II-Associated Factor 1 Involved in Pancreatic Oncogenesis. AB - The evolutionarily conserved RNA polymerase II-associated factor 1 (Paf1) from yeast to humans regulates transcription and associated processes, and thus, malfunctions and/or misregulations of Paf1 are associated with cellular pathologies. Indeed, Paf1 (also known as PD2 or pancreatic differentiation 2) is found to be upregulated in poorly differentiated cancer cells, and such upregulation is involved in cellular transformation or oncogenesis. However, the basis for Paf1 upregulation in these cells remains largely unknown. In light of this, we have tested here the idea that the ubiquitin-proteasome system (UPS) regulates the cellular abundance of Paf1. In this direction, we analyzed the role of UPS in regulation of Paf1's abundance in yeast. We find that Paf1 undergoes ubiquitylation and is degraded by the 26S proteasome in yeast, thus deciphering UPS regulation of an evolutionarily conserved factor, Paf1, involved in various cellular processes at the crossroads of the cancer networks. Likewise, Paf1 undergoes proteasomal degradation in well-differentiated, but not poorly differentiated, pancreatic cancer cells, hence pointing to the UPS in upregulation of Paf1 in poorly differentiated cancers. Collectively, our results reveal UPS regulation of Paf1 and suggest downregulation of UPS in elevating Paf1's abundance in poorly differentiated cancers. PMID- 29023103 TI - Synergistic Treatment of Mixed 1,4-Dioxane and Chlorinated Solvent Contaminations by Coupling Electrochemical Oxidation with Aerobic Biodegradation. AB - Biodegradation of the persistent groundwater contaminant 1,4-dioxane is often hindered by the absence of dissolved oxygen and the co-occurrence of inhibiting chlorinated solvents. Using flow-through electrolytic reactors equipped with Ti/IrO2-Ta2O5 mesh electrodes, we show that combining electrochemical oxidation with aerobic biodegradation produces an overadditive treatment effect for degrading 1,4-dioxane. In reactors bioaugmented by Pseudonocardia dioxanivorans CB1190 with 3.0 V applied, 1,4-dioxane was oxidized 2.5 times faster than in bioaugmented control reactors without an applied potential, and 12 times faster than by abiotic electrolysis only. Quantitative polymerase chain reaction analyses of CB1190 abundance, oxidation-reduction potential, and dissolved oxygen measurements indicated that microbial growth was promoted by anodic oxygen generating reactions. At a higher potential of 8.0 V, however, the cell abundance near the anode was diminished, likely due to unfavorable pH and/or redox conditions. When coupled to electrolysis, biodegradation of 1,4-dioxane was sustained even in the presence of the common co-contaminant trichloroethene in the influent. Our findings demonstrate that combining electrolytic treatment with aerobic biodegradation may be a promising synergistic approach for the treatment of mixed contaminants. PMID- 29023104 TI - Quantitative Evaluation of Cisplatin Uptake in Sensitive and Resistant Individual Cells by Single-Cell ICP-MS (SC-ICP-MS). AB - One of the main limitations to the Pt-therapy in cancer is the development of associated drug resistance that can be associated with a significant reduction of the intracellular platinum concentration. Thus, intracellular Pt concentration could be considered as a biomarker of cisplatin resistance. In this work, an alternative method to address intracellular Pt concentration in individual cells is explored to permit the evaluation of different cell models and alternative therapies in a relatively fast way. For this aim, total Pt analysis in single cells has been implemented using a total consumption nebulizer coupled to inductively coupled plasma mass spectrometric detection (ICP-MS). The efficiency of the proposed device has been evaluated in combination with flow cytometry and turned out to be around 25% (cells entering the ICP-MS from the cells in suspension). Quantitative uptake studies of a nontoxic Tb-containing compound by individual cells were conducted and the results compared to those obtained by bulk analysis of the same cells. Both sets of data were statistically comparable. Thus, final application of the developed methodology to the comparative uptake of Pt-species in cisplatin resistant and sensitive cell lines (A2780cis and A2780) was conducted. The results obtained revealed the potential of this analytical strategy to differentiate between different cell lines of different sensitivity to the drug which might be of high medical interest. PMID- 29023105 TI - Specific Detection of Carcinoembryonic Antigen Based on Fluorescence Quenching of Hollow Porous Gold Nanoshells with Roughened Surface. AB - The detection of tumor biomarkers in the early stage is highly desirable for the therapy of cancer. However, rapid, low-cost, sensitive, and selective detection of biomarkers remains a challenge owing to the sequence homology, short length, and low abundance. This Research Article describes the synthesis of a novel carcinoembryonic antigen (CEA) probe using hollow porous gold nanoparticles (HPGNPs) with roughened surface based on fluorescence quenching. For specific detection of CEA, the surface of HPGNP is modified by carboxyl modification, carboxyl activation, and antibody conjugation. Furthermore, to enhance the detection performance, we have systematically optimized the parameters, such as particle size, surfactants, surface roughness, surface hole size, and the molecule-particle distance (MPD). The results demonstrate that the fluorescence quenching efficiency would be enhanced with a larger particle size and surface hole size, roughened surface and a greater MPD. Also, with careful inspection of different surfactants of CTAB and PVP, we find that PVP has the optimal performance on fluorescence quenching. Under these optimized conditions, CEA could be detected with an ultralow detection limit of 1.5 pg/mL, and the probe shows a linear range from 2 to 100 pg/mL. The limit of detection is an order of intensity lower than related methods. Interference experiment results have shown that the influence of the interfering proteins could be neglected in the detection procedure. PMID- 29023106 TI - Noncoding RNA Surveillance: The Ends Justify the Means. AB - Numerous surveillance pathways sculpt eukaryotic transcriptomes by degrading unneeded, defective, and potentially harmful noncoding RNAs (ncRNAs). Because aberrant and excess ncRNAs are largely degraded by exoribonucleases, a key characteristic of these RNAs is an accessible, protein-free 5' or 3' end. Most exoribonucleases function with cofactors that recognize ncRNAs with accessible 5' or 3' ends and/or increase the availability of these ends. Noncoding RNA surveillance pathways were first described in budding yeast, and there are now high-resolution structures of many components of the yeast pathways and significant mechanistic understanding as to how they function. Studies in human cells are revealing the ways in which these pathways both resemble and differ from their yeast counterparts, and are also uncovering numerous pathways that lack equivalents in budding yeast. In this review, we describe both the well studied pathways uncovered in yeast and the new concepts that are emerging from studies in mammalian cells. We also discuss the ways in which surveillance pathways compete with chaperone proteins that transiently protect nascent ncRNA ends from exoribonucleases, with partner proteins that sequester these ends within RNPs, and with end modification pathways that protect the ends of some ncRNAs from nucleases. PMID- 29023107 TI - Luminescent Cu4I4-Cu3(Pyrazolate)3 Coordination Frameworks: Postsynthetic Ligand Substitution Leads to Network Displacement and Entanglement. AB - Six daughter complexes based on two-dimensional (2-D) luminescent Cu4I4-Cu3Pz3 (Pz = pyrazolate) coordination networks, which exhibit an uncommon Cu4I4L3L' (L = pyridine; L' = acetonitrile, pyridine, pyrazine, 1,4-diazabicyclo[2.2.2]octane, triphenylphosphine, none) local configuration, were prepared through a postsynthetic modification method starting from a parent complex (L' = NH3). This work has successfully implemented the single-site substitution of Cu4I4-based coordination frameworks, which have rarely been reported for isolated Cu4I4-type compounds, by taking advantage of the solvent-assisted ligand substitution strategy recently developed in metal-organic framework (MOF) chemistry. Such a procedure not only resulted in the variation of local geometry in the Cu4I4 units but also led to interlayer network displacement and entanglement. Particularly, an interesting topological transformation (from 2-D to 2-D -> 3-D interpenetration) occurred when linear bidentate linkers (e.g., pyrazine and 1,4 diazabicyclo[2.2.2]octane) are inserted between the 2-D layers. Moreover, the variation in the L' sites can effectively tune the emission colors, ranging from green to orange (lambdaemmax 540-605 nm at room temperature). The photoluminescence origins are tentatively assigned to be a mixture of 3MLCT and 3XLCT, different from that of the well-studied isolated Cu4I4-type complexes. PMID- 29023108 TI - Triaryl-Boron Functionalized Dinuclear Platinum Complexes Linked by Photoisomerizable Bpe Ligand: Luminescence and Isomerism. AB - We report herein a series of triarylboron-functionalized Pt(II) dinuclear complexes using a photoactive bis(4-pyridyl)ethylene (bpe) bridging unit. The new Pt(II) complexes display phosphorescence at both room temperature and 77 K. Depending on the conditions under which crystals of the complexes were grown, either the cis- or trans-isomers could be obtained. The trans and cis isomers were found to undergo light-induced isomerization in solution with the trans isomer being the dominant species. PMID- 29023109 TI - Direct Evidence for Neutral N-Pyrazolyl Radicals: Paddlewheel Dibismuthanes Bearing Pyrazolato Ligands with Very Short Bi-Bi Single Bonds. AB - Neutral N-pyrazolyl radicals [3,5-R2pz]* as reactive intermediates were generated by one-electron oxidization of the corresponding 3,5-disubstituted pyrazolato anions [3,5-R2pz]- (R = tBu, Ph) with BiCl3 and trapped by the use of 5,5 dimethyl-1-pyrroline-N-oxide as a spin trap, which was confirmed by electron paramagnetic resonance spectral analysis. With dimerization of the postulated pyrazolato low-valent BiII radical species, two novel paddlewheel pyrazolatodibismuthanes [L2(Bi-Bi)L2] [L = eta1,eta1-3,5-R2pz; R = tBu (5alpha, 5beta, and 5gamma), Ph (6)] were isolated and structurally characterized. PMID- 29023110 TI - Cleavage of Hg-C Bonds of Organomercurials Induced by ImOHSe via Two Distinct Pathways. AB - We show that the N-methylimidazole-based selone ImOHSe having an N-CH2CH2OH substituent has the remarkable ability to degrade methylmercury by two distinct pathways. Under basic conditions, ImOHSe converts MeHgCl into biologically inert HgSe nanoparticles and Me2Hg via the formation of an unstable intermediate (MeHg)2Se (pathway I). However, under neutral conditions, in the absence of any base, ImOHSe facilitates the cleavage of the Hg-C bond of MeHgCl at room temperature (23 degrees C), leading to the formation of a stable cleaved product, the tetracoordinated mononuclear mercury compound (ImOHSe)2HgCl2 and Me2Hg (pathway II). The initial rate of Hg-C bond cleavage of MeHgCl induced by ImOHSe is almost 2-fold higher than the initial rate observed by ImMeSe. Moreover, we show that ImYSe (Y = OH, Me) has an excellent ability to dealkylate Me2Hg at room temperature. Under acidic conditions, in the presence of excess ImYSe, the volatile and toxic Me2Hg further decomposes to the tetracoordinated mononuclear mercury compound [(ImYSe)4Hg]2+. In addition, the treatment of ImOHSe with MeHgCys or MeHgSG in phosphate buffer (pH 8.5) afforded water-soluble Hg(SeS) nanoparticles via unusual ligand exchange reactions, whereas its derivative ImOMeSe or ImMeSe, lacking the N-CH2CH2OH substituent, failed to produce Hg(SeS) nanoparticles under identical reaction conditions. PMID- 29023111 TI - Catalytic Asymmetric Synthesis of Quaternary Barbituric Acids. AB - The catalytic asymmetric alpha-functionalization of prochiral barbituric acids, a subtype of pseudosymmetric 1,3-diamides, to yield the corresponding 5,5 disubstituted (quaternary) derivatives remains essentially unsolved. In this study 2-alkylthio-4,6-dioxopirimidines are designed as key 1,3-diamide surrogates that perform exceedingly in amine-squaramide catalyzed C-C bond forming reactions with vinyl ketones or Morita-Baylis-Hillmann-type allyl bromides as electrophiles. Mild acid hydrolysis of adducts affords barbituric acid derivatives with an in-ring quaternary carbon in unprecedented enantioselectivity, offering valuable materials for biological evaluations. PMID- 29023113 TI - Kinetics and Mechanisms of Chemical and Biological Agents Release from Biopolymeric Microcapsules. AB - Kinetics and mechanisms of copper cations and Trichoderma viride spores release from uncoated and chitosan coated alginate microcapsules were investigated. The gelation of a fixed amount of sodium alginate at different concentrations of copper ion solutions resulted in distinct kinetics and release mechanisms. The increase in copper cation concentration promoted, but the presence of the chitosan layer on the microcapsule surface and the increase in microcapsule size reduced the rate of active agent release. Fitting to simple Korsmeyer-Peppas empirical model revealed that the underlying release mechanism (Fickian diffusion or a combination of the diffusion and erosion mechanisms) depends on the copper cation concentration and presence of T. viride spores. The investigation pointed out that the proper selection of formulation variables helps in designing microcapsules with the desirable release of copper ions and T. viride for plant protection and nutrition. PMID- 29023112 TI - Design of Leucine-Rich Repeat Kinase 2 (LRRK2) Inhibitors Using a Crystallographic Surrogate Derived from Checkpoint Kinase 1 (CHK1). AB - Mutations in leucine-rich repeat kinase 2 (LRRK2), such as G2019S, are associated with an increased risk of developing Parkinson's disease. Surrogates for the LRRK2 kinase domain based on checkpoint kinase 1 (CHK1) mutants were designed, expressed in insect cells infected with baculovirus, purified, and crystallized. X-ray structures of the surrogates complexed with known LRRK2 inhibitors rationalized compound potency and selectivity. The CHK1 10-point mutant was preferred, following assessment of surrogate binding affinity with LRRK2 inhibitors. Fragment hit-derived arylpyrrolo[2,3-b]pyridine LRRK2 inhibitors underwent structure-guided optimization using this crystallographic surrogate. LRRK2-pSer935 HEK293 IC50 data for 22 were consistent with binding to Ala2016 in LRRK2 (equivalent to Ala147 in CHK1 10-point mutant structure). Compound 22 was shown to be potent, moderately selective, orally available, and brain-penetrant in wild-type mice, and confirmation of target engagement was demonstrated, with LRRK2-pSer935 IC50 values for 22 in mouse brain and kidney being 1.3 and 5 nM, respectively. PMID- 29023114 TI - Exploration of Stable Strontium Phosphide-Based Electrides: Theoretical Structure Prediction and Experimental Validation. AB - Inspired by the successful synthesis of alkaline-earth-metals-based electrides [Ca24Al28O64]4+(e-)4 (C12A7:e-) and [Ca2N]+:e- and high-throughput database screening results, we explore the potential for new electrides to emerge in the Sr-P system through a research approach combining ab initio evolutionary structure searches and experimental validation. Through employing an extensive evolutionary structure search and first-principles calculations, we first predict the new structures of a series of strontium phosphides: Sr5P3, Sr8P5, Sr3P2 and Sr4P3. Of these structures, we identify Sr5P3 and Sr8P5 as being potential electrides with quasi-one-dimensional (1D) and zero-dimensional (0D) character, respectively. Following these theoretical results, we present the successful synthesis of the new compound Sr5P3 and the experimental confirmation of its structure. Although density functional calculations with the generalized gradient approximation predict Sr5P3 to be a metal, electrical conductivity measurement reveal semiconducting properties characterized by a distinct band gap, which indicates that the newly synthesized Sr5P3 is an ideal one-dimensional electride with the half-filled band by unpaired electrons. In addition to presenting the novel electride Sr5P3, we discuss the implications of its semiconducting nature for 1D electrides in general and propose a mechanism for the formation of electrides with an orbital level diagram based on first-principles calculations. PMID- 29023115 TI - Gallium Hydrides with a Radical-Anionic Ligand. AB - The reaction of Cl2GaH with a sodium salt of the dpp-Bian radical-anion (dpp Bian*-)Na (dpp-Bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) affords paramagnetic gallane (dpp-Bian*-)Ga(Cl)H (1). Oxidation of (dpp-Bian2-)Ga-Ga(dpp Bian2-) (2) with N2O results in the dimeric oxide (dpp-Bian*-)Ga(MU2-O)2Ga(dpp Bian*-) (3). A treatment of the oxide 3 with phenylsilane affords paramagnetic gallium hydrides (dpp-Bian*-)GaH2 (4) and (dpp-Bian*-)Ga{OSi(Ph)H2}H (5) depending on the reagent's stoichiometry. The reaction of digallane 2 with benzaldehyde produces pinacolate (dpp-Bian*-)Ga(O2C2H2Ph2) (6). In the presence of PhSiH3, the reaction between digallane 2 and benzaldehyde (2: PhSiH3: PhC(H)O = 1:4:4) affords compound 4. The newly prepared complexes 1, 3-6 consist of a spin-labeled diimine ligand-dpp-Bian radical-anion. The presence of the ligand localized unpaired electron allows the use of the ESR spectroscopy for characterization of the gallium hydrides reported. The molecular structures of compounds 1, 3-6 have been determined by the single-crystal X-ray analysis. PMID- 29023116 TI - Extended Concerted Rotation Technique Enhances the Sampling Efficiency of the Computational Peptide-Design Algorithm. AB - To enhance the sampling efficiency of our computational peptide-design algorithm in conformational space, the concerted rotation (CONROT) technique is extended to enable larger conformational perturbations of peptide chains. This allows us to make relatively large peptide conformation changes during the process of designing peptide sequences to bind with high affinity to a specific target. Searches conducted using the new algorithm identified six potential lambda N(2 22) peptide variants, called B1-B6, which bind to boxB RNA with high affinity. The results of explicit-solvent atomistic molecular dynamics simulations revealed that four of the evolved peptides, viz. B1, B2, B3, and B5, are excellent candidate binders to the target boxB RNA as they have lower binding free energies than the original lambda N(2-22) peptide. Three of the four peptides, B2, B3, and B5, result from searches that contain both sequence and conformation changes, indicating that adding backbone motif changes to the peptide-design algorithm improves its performance considerably. PMID- 29023117 TI - Molecular Engineering of Near Infrared Absorbing Thienopyrazine Double Donor Double Acceptor Organic Dyes for Dye-Sensitized Solar Cells. AB - The thienopyrazine (TPz) building block allows for NIR photon absorption in dye sensitized solar cells (DSCs) when used as a pi-bridge. We synthesized and characterized 7 organic sensitizers employing thienopyrazine (TPz) as a pi-bridge in a double donor, double acceptor organic dye design. Donor groups are varied based on electron donating strength and sterics at the donor-pi bridge bond with the acceptor groups varied as either carboxylic acids or benzoic acids on the pi bridge. This dye design was found to be remarkably tunable with solution absorption onsets ranging from 750 to near 1000 nm. Interestingly, the solution absorption measurements do not accurately approximate the dye absorption on TiO2 films with up to a 250 nm blue-shift of the dye absorption onset on TiO2. This shift in absorption and the effect on electron transfer properties is investigated via computational analysis, time-correlated single photon counting studies, and transient absorption spectroscopy. Structure-performance relationships were analyzed for the dyes in DSC devices with the highest performance observed at 17.6 mA/cm2 of photocurrent and 7.5% PCE for a cosensitized device with a panchromatic IPCE onset of 800 nm. PMID- 29023118 TI - Mixed-Penetrant Sorption in Ultrathin Films of Polymer of Intrinsic Microporosity PIM-1. AB - Mixed-penetrant sorption into ultrathin films of a superglassy polymer of intrinsic microporosity (PIM-1) was studied for the first time by using interference-enhanced in situ spectroscopic ellipsometry. PIM-1 swelling and the concurrent changes in its refractive index were determined in ultrathin (12-14 nm) films exposed to pure and mixed penetrants. The penetrants included water, n hexane, and ethanol and were chosen on the basis of their significantly different penetrant-penetrant and penetrant-polymer affinities. This allowed studying microporous polymer responses at diverse ternary compositions and revealed effects such as competition for the sorption sites (for water/n-hexane or ethanol/n-hexane) or enhancement in sorption of typically weakly sorbing water in the presence of more highly sorbing ethanol. The results reveal details of the mutual sorption effects which often complicate comprehension of glassy polymers' behavior in applications such as high-performance membranes, adsorbents, or catalysts. Mixed-penetrant effects are typically very challenging to study directly, and their understanding is necessary owing to a broadly recognized inadequacy of simple extrapolations from measurements in a pure component environment. PMID- 29023119 TI - How Does the Central Atom Substitution Impact the Properties of a Criegee Intermediate? Insights from Multireference Calculations. AB - Complete active space self-consistent field (CASSCF) and multireference configuration interaction (MRCI)-based multireference calculations have been performed to better understand the ground state properties and the photodissociation mechanism of SiH2OO, a silicon analogue of the parent Criegee intermediate, CH2OO. The CASSCF/aug-cc-pV(T+d)Z results suggest that the ground state of SiH2OO is severely multireference in nature. This explains why SiH2OO could not be characterized in recently reported coupled cluster calculations. An important implication of this multireference character is the dramatically enhanced reactivity of SiH2OO, i.e., the calculated barrier for the cyclization of SiH2OO is only 4.4 kcal/mol, which is nearly 10 kcal/mol lower than that reported for the CH2OO case. The MRCI/aug-cc-pV(T+d)Z results on the evolution of the low-lying singlet electronic states along the OO bond suggest that SiH2OO absorbs strongly in the near UV-vis region. These results improve our fundamental understanding of the thermal and photobehavior of XH2OO (X = C, Si, Ge, and Sn) that serve as precursors for dioxiranes, an important class of oxidants for the synthesis of value-added chemicals, and also find their applications in optodevices. PMID- 29023120 TI - DFT Study on the Formation Mechanism of Normal and Abnormal N-Heterocyclic Carbene-Carbon Dioxide Adducts from the Reaction of an Imidazolium-Based Ionic Liquid with CO2. AB - To illustrate the formation mechanism of normal and abnormal N-heterocyclic carbene-carbon dioxide adducts (NHC-CO2 and aNHC-CO2), we implement density functional theory calculations on the reactions of two imidazolium-based ionic liquids ([C2C1Im][OAc] and [C2C1Im][CH3SO3]) with CO2. The reaction of [C2C1Im][OAc] with CO2 is mimicked using the gas phase model, implicit solvent model, and combined explicit-implicit solvent model. In the gas phase, the calculated barriers at 125 degrees C and 10 MPa are 12.1 kcal/mol for the formation of NHC-CO2 and 22.5 kcal/mol for the formation of aNHC-CO2, and the difference is significant (10.4 kcal/mol). However, the difference becomes less important (1.5 kcal/mol) as the solvation effect is considered more realistically using the combined explicit-implicit solvent model, rationalizing the experimental observation of aNHC-CO2 adduct in the [C2C1Im][OAc]-CO2 system. The anion of the ionic liquid is shown to play a substantial role, which can adjust the reactivity of imidazolium cation toward CO2: upon replacement of the basic [OAc]- anion with a less basic [CH3SO3]- anion, the reaction becomes very difficult, as indicated by high free energy barriers involved (41.4 kcal/mol for the formation of NHC-CO2 and 39.2 kcal/mol for the formation of aNHC-CO2). This is in agreement with the fact that neither NHC-CO2 or aNHC-CO2 is formed in the [C2C1Im][CH3SO3]-CO2 system, emphasizing the important dependence of the reactivity on the basicity of the anion of imidazolium-based ionic liquids for the formation of NHC- and aNHC-CO2 adducts. PMID- 29023122 TI - Water Photo-oxidation Initiated by Surface-Bound Organic Chromophores. AB - Organic chromophores can be synthesized by established methods and offer an opportunity to expand overall solar spectrum utilization for dye-sensitized photoelectrosynthesis cells. However, there are complications in the use of organic chromophores arising from the instability of their oxidized forms, the inability of their oxidized forms to activate a water oxidation catalyst, or the absence of a sufficiently reducing excited state for electron injection into appropriate semiconductors. Three new triarylamine donor-acceptor organic dyes have been investigated here for visible-light-driven water oxidation. They offer highly oxidizing potentials (>1 V vs NHE in aqueous solution) that are sufficient to drive a water oxidation catalyst and excited-state potentials (~-1.2 V vs NHE) sufficient to inject into TiO2. The oxidized form of one of the chromophores is sufficiently stable to exhibit reversible electrochemistry in aqueous solution. The chromophores also have favorable photophysics. Visible-light-driven oxygen production by an organic chromophore for up to 1 h of operation has been demonstrated with reasonable faradaic efficiencies for measured O2 production. The properties of organic chromophores necessary for successfully driving water oxidation in a light-driven system are explored along with strategies for improving device performance. PMID- 29023121 TI - Discovery of 3,5-Diphenyl-4-methyl-1,3-oxazolidin-2-ones as Novel, Potent, and Orally Available Delta-5 Desaturase (D5D) Inhibitors. AB - The discovery and optimization of Delta-5 desaturase (D5D) inhibitors are described. Investigation of the 1,3-oxazolidin-2-one scaffold was inspired by a pharmacophore model constructed from the common features of several hit compounds, resulting in the identification of 3,5-diphenyl-1,3-oxazolidin-2-one 5h as a novel lead showing potent in vitro activity. Subsequent optimization focused on the modification of two metabolic sites, which provided (4S,5S)-5i, a derivative with improved metabolic stability. Moreover, adding a substituent into the upper phenyl moiety further enhanced the intrinsic activity, which led to the discovery of 5-[(4S,5S)-5-(4fluorophenyl)-4-methyl-2-oxo-1,3-oxazolidin-3 yl]benzene-1,3-dicarbonitrile (4S,5S)-5n, endowed with excellent D5D binding affinity, cellular activity, and high oral bioavailability in a mouse. It exhibited robust in vivo hepatic arachidonic acid/dihomo-gamma-linolenic acid ratio reduction (a target engagement marker) in an atherosclerosis mouse model. Finally, an asymmetric synthetic procedure for this compound was established. PMID- 29023123 TI - Comparison Study on Polysaccharide Fractions from Laminaria japonica: Structural Characterization and Bile Acid Binding Capacity. AB - Our previous study has suggested that the crude polysaccharide obtained from Laminaria japonica by acid assisted extraction (LP-A) have significant bile acid binding capacity, which probably ascribed to its specific structure characterization. The relationship between structure characterization and bile acid-binding capacity of the purified LP-A fractions are still unknown. This paper conducted a comparison study on the structure characterization and bile acid-binding capacity of three LP-A fractions (LP-A4, LP-A6, and LP-A8). The results indicated that LP-A4, LP-A6, and LP-A8, characterized as mannoglucan, fucomannoglucan, and fucogalactan, had significantly different structure characterization. Furthermore, the bile acid-binding capacity of LP-A8 was obviously higher than the other fractions, which may be attributed to its highly branched structure, abundant sulfate, fucose, and galactose in chemical composition and denser interconnected macromolecule network in molecular morphology. This study provides scientific evidence for the potential utilization of LP-A8 as an attractive functional food supplement candidate for the hyperlipidemia population. PMID- 29023125 TI - Autocatalytic Oxidation of Trithionate by Iodate in a Strongly Acidic Medium. AB - The trithionate-iodate reaction has been studied spectrophotometrically in an acidic medium at 25.0 +/- 0.1 degrees C in phosphoric acid/dihydrogen phosphate buffer, monitoring the absorbance at 468 nm at the isosbestic point of the iodine triiodide ion system and at I = 0.5 M ionic strength adjusted by sodium perchlorate. The main characteristics of the title system are very reminiscent of those found recently in the pentathionate-iodate and the pentathionate-periodate reactions, the systems paving the way for classifying clock reactions. Thorough analysis revealed that the direct trithionate-iodate reaction plays a subtle role only to produce a trace amount of iodide ion via a finite sequence of reactions, and once its concentration reaches a certain level, then the reaction is almost exclusively governed by the trithionate-iodine and iodide-iodate reactions. The title reaction, as expected, was experimentally proven to be autocatalytic with respect to iodide ion. A simple three-step Landolt-type kinetic model is proposed to describe adequately the most important kinetic features of the title system that can easily be extended to a feasible sequence of elementary and quasi elementary reactions. PMID- 29023124 TI - Synthesis and Antimicrobial Evaluation of Fire Ant Venom Alkaloid Based 2-Methyl 6-alkyl-Delta1,6-piperideines. AB - The first synthesis of 2-methyl-6-pentadecyl-Delta1,6-piperideine (1), a major alkaloid of the piperideine chemotype in fire ant venoms, and its analogues, 2 methyl-6-tetradecyl-Delta1,6-piperideine (2) and 2-methyl-6-hexadecyl-Delta1,6 piperideine (3), was achieved by a facile synthetic method starting with glutaric acid (4) and urea (5). Compound 1 showed in vitro antifungal activity against Cryptococcus neoformans and Candida albicans with IC50 values of 6.6 and 12.4 MUg/mL, respectively, and antibacterial activity against vancomycin-resistant Enterococcus faecium with an IC50 value of 19.4 MUg/mL, while compounds 2 and 3 were less active against these pathogens. All three compounds strongly inhibited the parasites Leishmania donovani promastigotes and Trypanosoma brucei with IC50 values in the range of 5.0-6.7 and 2.7-4.0 MUg/mL, respectively. PMID- 29023126 TI - Lyotropic Liquid-Crystalline Nanosystems as Drug Delivery Agents for 5 Fluorouracil: Structure and Cytotoxicity. AB - Lyotropic cubic liquid-crystalline systems have received increasing attention due to their unique microstructural and physicochemical properties as efficient nanocarriers for drug delivery. We report the preparation and characterization of bulk phases and cubosome dispersions of phytantriol loaded with the anticancer drug 5-fluorouracil, in neutral and anionic forms. In both cases, a Pn3m cubic phase was observed. The phytantriol phase behavior can be influenced by the addition of ionic agents, and, to this purpose, a positively charged lipid, such as N-[1-(2,3-dioleoyloxy)propyl]-N,N,N-trimethylammonium chloride salt (DOTAP), was included in the studied formulations. It was found to induce a variation of the spontaneous membrane curvature of the phytantriol lipid bilayer, generating a transition from the Pn3m to the Im3m cubic phase. When 5-fluorouracil, in its anionic form (5-FUs), was encapsulated in these latter systems, a further transition to the HII hexagonal phase was observed as a consequence of the formation of a complex phytantriol/DOTAP/5-FUs. The physicochemical characterization was performed with various complementary techniques including synchrotron small-angle X-ray scattering, dynamic light scattering, and attenuated total reflection Fourier transform infrared and UV resonance Raman spectroscopies. Encapsulation of 5-fluorouracil in the corresponding nanodispersions was evaluated, and their in vitro cytotoxicity was assessed in MDA-MB-231 cell line. Phytantriol cubosomes containing 5-fluorouracil showed a higher toxicity compared with the bare drug solution, and hence they represent potential nanocarriers in the delivery of 5-fluorouracil for cancer therapy. PMID- 29023127 TI - Surface-Mediated DNA Hybridization: Effects of DNA Conformation, Surface Chemistry, and Electrostatics. AB - Single-molecule Forster Resonance Energy Transfer (FRET) was used to study the dynamic association of mobile donor-labeled ssDNA oligonucleotides ("target") with covalently immobilized complementary acceptor-labeled ssDNA oligonucleotides ("probe"). While probe-target association events were resolved for all experiments, such FRET events were far more likely to occur in systems with complementarity and on hydrophobic, as compared to hydrophilic, surfaces. The distribution of donor-acceptor association-time intervals did not exhibit simple first-order kinetics, and when decomposed into a superposition of first-order processes, only a small fraction of events corresponded to a long-lived state that was presumed to represent true DNA hybridization, while the majority of association events were transient, representing nonspecific associations or partial hybridization. The structure of the DNA target and probe affected both the stability of the hybridized state, as well as the likelihood that an association between the two led to hybridization. In particular, the likelihood of hybridization decreased for longer target strands and for targets with stem loop secondary structure. The presence of oligonucleotide secondary structure reduced the stability of hybridization, while greater complementarity increased stability of the hybridized state. Interestingly, increased ionic strength (i.e., greater electrostatic screening) increased the probability of hybridization but did not influence the lifetime of the hybridized state. Combined, these observations provide a nuanced view of surface-mediated DNA hybridization, where various factors independently influence the probability and stability of hybridization. PMID- 29023128 TI - Mapping Solvation Environments in Porous Metal-Organic Frameworks with Infrared Chemical Imaging. AB - We report here the first mesoscale characterization of solvent environments in the metal-organic framework (MOF) Cu3(BTC)2 using infrared imaging. Two characteristic populations of the MOF structures corresponding to the carboxylate binding to the Cu(II) (metal) ions were observed, which reflect a regular solvated MOF structure with axial solvents in the binuclear copper paddlewheel and an unsolvated defect mode that lacks axial solvent coordination. Infrared imaging also shows strong correlation between solvent localization and the spatial distribution of the solvated population within the MOF. This is a vital result as any remnant solvent molecules adsorbed inside of MOFs can render them less effective. We propose fast IR imaging as a potential characterization technique that can measure adsorbate and defect distributions in MOFs. PMID- 29023129 TI - Robust and Selective Switching of an FeIII Spin-Crossover Compound on Cu2N/Cu(100) with Memristance Behavior. AB - The switching between two spin states makes spin-crossover molecules on surfaces very attractive for potential applications in molecular spintronics. Using scanning tunneling microscopy, the successful deposition of [Fe(pap)2]+ (pap = N 2-pyridylmethylidene-2-hydroxyphenylaminato) molecules on Cu2N/Cu(100) surface is evidenced. The deposited FeIII spin-crossover compound is controllably switched between three different states, each of them exhibiting a characteristic tunneling conductance. The conductance is therefore employed to readily read the state of the molecules. A comparison of the experimental data with the results of density functional theory calculations reveals that all Fe(pap)2 molecules are initially in their high-spin state. The two other states are compatible with the low-spin state of the molecule but differ with respect to their coupling to the substrate. As a proof of concept, the reversible and selective nature of the switching is used to build a two-molecule memory. PMID- 29023130 TI - Neutron Reflectometry Elucidates Protein Adsorption from Human Blood Serum onto PEG Brushes. AB - Poly(ethylene glycol) (PEG) brushes are reputed for their ability to prevent undesired protein adsorption to material surfaces exposed to biological fluids. Here, protein adsorption out of human blood serum onto PEG brushes anchored to solid-supported lipid monolayers was characterized by neutron reflectometry, yielding volume fraction profiles of lipid headgroups, PEG, and adsorbed proteins at subnanometer resolution. For both PEGylated and non-PEGylated lipid surfaces, serum proteins adsorb as a thin layer of approximately 10 A, overlapping with the headgroup region. This layer corresponds to primary adsorption at the grafting surface and resists rinsing. A second diffuse protein layer overlaps with the periphery of the PEG brush and is attributed to ternary adsorption due to protein PEG attraction. This second layer disappears upon rinsing, thus providing a first observation of the structural effect of rinsing on protein adsorption to PEG brushes. PMID- 29023131 TI - Direct Synthesis of Acyl Fluorides from Carboxylic Acids with the Bench-Stable Solid Reagent (Me4N)SCF3. AB - A convenient, highly efficient, and selective transformation of aliphatic and aromatic carboxylic acids to acyl fluorides is reported. In contrast to established approaches that require toxic or volatile additives and base and reaction control (i.e., cooling, slow addition), this protocol allows for a straightforward access to various R-COF entities upon direct reaction with the bench-stable, solid reagent (Me4N)SCF3 at room temperature. The method is base- and additive-free, compatible with late-stage synthetic applications, high functional group tolerance, and facile target compound purification via filtration. PMID- 29023132 TI - Zampanolide Binding to Tubulin Indicates Cross-Talk of Taxane Site with Colchicine and Nucleotide Sites. AB - The marine natural product zampanolide and analogues thereof constitute a new chemotype of taxoid site microtubule-stabilizing agents with a covalent mechanism of action. Zampanolide-ligated tubulin has the switch-activation loop (M-loop) in the assembly prone form and, thus, represents an assembly activated state of the protein. In this study, we have characterized the biochemical properties of the covalently modified, activated tubulin dimer, and we have determined the effect of zampanolide on tubulin association and the binding of tubulin ligands at other binding sites. Tubulin activation by zampanolide does not affect its longitudinal oligomerization but does alter its lateral association properties. The covalent binding of zampanolide to beta-tubulin affects both the colchicine site, causing a change of the quantum yield of the bound ligand, and the exchangeable nucleotide binding site, reducing the affinity for the nucleotide. While these global effects do not change the binding affinity of 2-methoxy-5-(2,3,4 trimethoxyphenyl)-2,4,6-cycloheptatrien-1-one (MTC) (a reversible binder of the colchicine site), the binding affinity of a fluorescent analogue of GTP (Mant GTP) at the nucleotide E-site is reduced from 12 +/- 2 * 105 M-1 in the case of unmodified tubulin to 1.4 +/- 0.3 * 105 M-1 in the case of the zampanolide tubulin adduct, indicating signal transmission between the taxane site and the colchicine and nucleotide sites of beta-tubulin. PMID- 29023133 TI - Women's Experiences of Food Insecurity and Coping Strategies in the Chittagong Hill Tracts, Bangladesh. AB - Despite advances in food production and distribution technologies, global food insecurity continues throughout parts of South Asia. Using ethnographic data collected from the Chittagong Hill Tracts (CHT) in Bangladesh, this article reports on gendered and ethnocultural variations in experiences of food insecurity. Three key findings are that (1) regardless of ethnicity, the majority of the households in this study suffered moderate food insecurity; (2) food insecurity was higher among female-headed households; and (3) women's means of coping strategies varied depending on household structure and ethnic identity. It is argued that indigenous women's coping strategies were protective in comparison with Bengali women's experiences. PMID- 29023134 TI - A systematic review of correlates of depression among older Chinese and Korean immigrants: what we know and do not know. AB - OBJECTIVES: Guided by the stress and coping theory, this study provides a systematic review of existing research on acculutration, family support, and social support related correlates of depression among older Chinese and Korean immigrants in the United States. METHOD: A comprehensive literature search was conducted in CINAHL Plus, Abstracts in Social Gerontology, AgeLine, Social Work Abstracts, PubMed, PsychINFO, and Social Science Citation Index databases to identify relevant articles that presented multivariate analysis results. RESULTS: A total of 55 articles were identified, with the vast majority focusing on older Korean immigrants. The overall evidence showed that length of residence was largely unrelated to depression, and poor Enligsh proficiency also had a weak correlation with depression. However, a low level of acculturation measured by multidimensional scales was consistently associated with more depressive symptoms. Overall, living arrangements and the size and frequency of contact of both kin and non-kin networks were weak correlates of depression. In contrast, negative family and social interactions seem to be more consequential for depression in the two groups than positive relations and support. CONCLUSION: The findings show that established acculturation instruments are useful tools to identify at-risk older Chinese and Korean immigrants. Future studies need to further examine which aspects of acculturation experience are more influential for immigrants' mental health. Although often conceptualized as important coping resources, family and social networks could present significant stressors for older immigrants. Future research and services could focus on these contexts to improve the mental health of these two rapidly increasing Asian populations. PMID- 29023135 TI - Dietary Patterns and Dietary Adequacy of Street Children in Dhaka, Bangladesh. AB - The negative impact of poverty on the biological well-being of children is well established. The purpose of the present study was to evaluate the impact of the stress of full-time street life on the dietary patterns and dietary adequacy of street children living in Dhaka, Bangladesh. This was accomplished by comparing the nutritional patterns of full-time street children with those of other poor children in Dhaka who also spend their days on the streets but who return to their families at night. There were few differences between groups, possibly due to street children being a select group. However, there were significant sex differences in both groups of children, with boys tending to have more diverse and more adequate diets than girls. The cause of this latter pattern could not be determined with the available data but may involve cultural values favoring males over females. PMID- 29023136 TI - Nutrition Education Intervention to Improve Nutrition-Related Knowledge, Attitudes, and Behaviors for Hispanic Children. AB - This study was performed to assess the effect of a nutrition education intervention on the nutrition-related knowledge, attitudes, and behaviors of Hispanic children, ages 6-10 years, in a local after-school program. The intervention included seven weekly lessons that lasted an average of 30 minutes each. Pre- and post-tests were used to evaluate the program. There was a statistically significant difference, p < .04, observed for the intervention group (n = 7) between the pre- and posttest scores for knowledge. In addition, the posttest scores for the intervention group were significantly higher, p < .04, than for the control group (n = 3). Changes in nutrition-related attitudes and behavior were not significant. The only measure that showed significant improvement was knowledge about the differences between healthy and unhealthy food choices after the intervention, which is crucial in the development of healthy behaviors. PMID- 29023138 TI - Measurement of expressive vocabulary in school-age children: Development and application of the Kilifi Naming Test (KNT). AB - The dearth of locally developed measures of language makes it difficult to detect language and communication problems among school-age children in sub-Saharan African settings. We sought to describe variability in vocabulary acquisition as an important element of global cognitive functioning. Our primary aims were to establish the psychometric properties of an expressive vocabulary measure, examine sources of variability, and investigate the measure's associations with non-verbal reasoning and educational achievement. The study included 308 boys and girls living in a predominantly rural district in Kenya. The developed measure, the Kilifi Naming Test (KNT), had excellent reliability and acceptable convergent validity. However, concurrent validity was not adequately demonstrated. In the final regression model, significant effects of schooling and area of residence were recorded. Contextual factors should be taken into account in the interpretation of test scores. There is need for future studies to explore the concurrent validity of the KNT further. PMID- 29023137 TI - Sexual vs. Nonsexual Currently Most Upsetting Trauma: A Fresh Look at Attenuation of Sexual Response, Alcohol Intoxication, and Post-Traumatic Stress. AB - This study examined the dependence of sexual response (vaginal pulse amplitude [VPA] and subjective sexual arousal) on alcohol intoxication (.10% breath alcohol concentration [BrAC] versus no alcohol) and the nature of a woman's currently most upsetting traumatic event (C-MUTE), whether it was sexual (e.g., rape) or nonsexual (e.g., combat). Self-reported sexual outcomes were also compared by C MUTE type. A total of 117 women completed background measures and either drank alcoholic or nonalcoholic beverages. They were shown erotic films and their VPA was assessed. A two (sexual versus nonsexual C-MUTE) by two (.10% BrAC versus no alcohol) analysis of variance (ANOVA) showed that, controlling for post-traumatic stress (PTS) symptoms, women with a sexual C-MUTE showed lower percent VPA change than women with a nonsexual C-MUTE. No significant effects were found for subjective sexual arousal. A multivariate analysis of variance (MANOVA) showed that women with a sexual C-MUTE reported more frequent anxiety and inhibition during partnered sex and more frequent lack of vaginal lubrication versus women with a nonsexual C-MUTE. There was no significant interaction between C-MUTE and alcohol intoxication. Whether a woman is currently upset by past sexual victimization may influence current sexual difficulties. Attenuated VPA may be attributable to the sexual nature of a C-MUTE as opposed to general trauma exposure. PMID- 29023139 TI - Sheltering Haitian Humanitarian Parolees in San Diego: A Local Health Department's Response to an International Crisis. AB - From the Field is a semi-regular column that explores what it means to be a local health professional on the front lines of an emergency. National Association of County and City Health Officials (NACCHO) members share their stories of preparing for and responding to disasters, epidemics, and other major health issues. Through exploring the analysis of the challenges faced and the solutions developed, readers can learn how these public health champions keep their communities safe even in extreme situations. Readers may submit topics of interest to the column's editor, Meghan McGinty, PhD, MPH, MBA, at mmcginty@naccho.org . PMID- 29023140 TI - Genetic Polymorphisms of Cytochrome P450 Enzymes and Transport Proteins in a Russian Population and Three Ethnic Groups of Dagestan. AB - AIM: The objective of this study was to investigate the prevalence of polymorphic markers of the CYP2C19, CYP2C9, CYP2D6, SLCO1B1, and ABCB1 genes among the three ethnic groups in Dagestan and compare it with the carrier frequency of these markers among the Russian population living in Moscow. METHODS: The study involved 186 healthy, unrelated, and chronic medication-free volunteers (53 males and 133 females) of the three ethnic groups in the Dagestan Republic: 46 Laks, 90 Avars, and 50 Dargins. Genotyping was performed using real-time polymerase chain reaction-based methods. The allelic prevalences of the three Dagestan peoples were compared with ethnic Russians from the Moscow region. RESULTS: Statistically significant differences for the following gene polymorphisms: CYP2C19*17, CYP2C9*3, ABCB1 (C3435T), SLCO1B1*5 were found between the Russian population and the three ethnic groups of the Dagestan republic. CONCLUSION: The data obtained from this study will help with prioritization genotyping in the region. PMID- 29023141 TI - Sexual Identity Disclosure and Awareness of HIV Prevention Methods Among Black Men Who Have Sex With Men. AB - Black men who have sex with men (BMSM) are disproportionately affected by the human immunodeficiency virus (HIV) epidemic, yet we know little about how HIV negative BMSM of different sexual orientations access HIV prevention strategies. Identity development, minority stress, and disclosure theories suggest that for people of different sexual orientations, disclosure of sexual identity may be related to health behaviors. We performed a latent class analysis on a sample of 650 BMSM (Mage = 33.78, SD = 11.44) from Atlanta, Georgia, to explore whether sexual orientation, disclosure of sexual identity, and relationship status were related to HIV prevention strategies, including awareness of PrEP (pre-exposure prophylaxis) and PEP (post-exposure prophylaxis) and frequency of HIV testing. We found three distinct BMSM classes referred to as (1) closeted bisexuals, (2) sexual identity managers, and (3) gay, out, and open; all classes primarily engaged in casual sex. Classes differed in their awareness and access to HIV prevention strategies. The closeted bisexual class was least aware of and least likely to access HIV prevention. Findings have important implications for future research, namely the consideration of sexual identity and disclosure among BMSM. With this knowledge, we may be able to engage BMSM in HIV/sexually transmitted infection (STI) prevention services. PMID- 29023142 TI - Diffusion-weighted imaging in ectopic pregnancy: ring of restriction sign. AB - OBJECTIVE: To demonstrate the diffusion-weighted imaging (DWI) findings of ectopic pregnancy (EP) and introduce the "ring of restriction" sign by discussing possible causes. METHODS: Between January 2014 and January 2017, patients with EP and examined by MRI on a 3T scanner were retrospectively evaluated. MRI and DWI findings were recorded. RESULTS: A total of 40 patients were diagnosed with EP at our university hospital, 8 of whom (20%) were evaluated by MRI and DWI. All of them were haemodynamically and clinically stable and could be imaged adequately. Locations were ovary (n = 3, 37.5%), tuba (n = 2, 25%), Caesarean section scar (n = 2, 25%) and parauterine (n = 1, 12.5%). In all eight EPs, the gestational sac diameter was compatible with 7-9 weeks. With DWI, the gestational sac was seen as a thick-walled cyst-like structure. The thick wall showed diffusion restrictions in all patients (ring of restriction sign). CONCLUSIONS: DWI through its cellular and molecular evidence may contribute diagnosis of EP. Advances in knowledge: Being aware of the EP wall shows diffusion restriction (ring of restriction) avoids interpretation errors especially in appropriate clinical setting with no need for contrast material. PMID- 29023143 TI - Changes of Emphysema Parameters over the Respiratory Cycle During Free Breathing: Preliminary Results Using Respiratory Gated 4D-CT. AB - The purpose of this research was to evaluate respiratory gated CT of the lung in patients with COPD for analysis of parenchymal characteristics who were potential candidates for volume reduction surgery. Eleven patients with clinically known emphysematous disease underwent a respiratory gated, free-breathing 64-multislice CT (Aquilion 64, Toshiba). Retrospective image reconstruction was performed similar to cardiac CT at every 10% of the respiratory loop, resulting in 10 complete volumetric datasets at 10 equidistant time points. All images were transferred onto a PC for calculation of the total lung volume, emphysema volume, emphysema index, and mean lung density. Complete datasets could be successfully reconstructed in all patients. The mean lung volume increased from 6.9 L to 7.5 L over the respiratory cycle. Emphysema volume increased from 1.6 L to 2.0 L and emphysema index from 22.6% to 26.5% from expiration to inspiration. In conclusion, respiratory gated chest 4D-CT allows for combined morphologic and functional image analysis, which can provide new insight into functional impairment and individual treatment planning. PMID- 29023144 TI - Birth Cohort Differences in Sexual Identity Development Milestones Among HIV Negative Gay and Bisexual Men in the United States. AB - The coming-out process for gay and bisexual men (GBM) involves crossing sexual identity development (SID) milestones: (1) self-awareness of sexual attraction to the same sex, (2) self-acceptance of an identity as gay or bisexual, (3) disclosure of this sexual identity to others, and (4) having sex with someone of the same sex. We examined trends in SID milestones by birth cohort in a 2015 U.S. national sample of GBM (n = 1,023). Birth cohort was independent of when men first felt sexually attracted to someone of the same sex (median age 11 to 12). However, with the exception of age of first same-sex attraction, older cohorts tended to pass other milestones at later ages than younger cohorts. Latent class analysis (LCA) of SID milestone patterns identified three subgroups. The majority (84%) began sexual identity development with same-sex attraction around the onset of puberty (i.e., around age 10) and progressed to self-identification, same-sex sexual activity, and coming out-in that order. The other two classes felt same sex attraction during teen years (ages 12.5 to 18.0) but achieved the remaining SID milestones later in life. For 13% of men, this was during early adulthood; for 3% of men, this was in middle adulthood. Findings highlight the need to monitor ongoing generational differences in passing SID milestones. PMID- 29023146 TI - Is there a role for combined use of gabapentin and pregabalin in pain control? Too good to be true? AB - Gabapentin (Neurontin 1 ) and pregabalin (Lyrica 2 ) are first- and second generation alpha2delta ligands, respectively, and are both approved for use as adjunctive therapy in pain control. Although they do not bind to gamma aminobutyric acid (GABA) receptors they have been successfully used to treat neuropathic pain conditions. Their mechanism of action is not yet fully understood, but research has demonstrated promising results. Despite their similarities, they have been used in combination in both clinical and research situations, and have been noted to have a synergistic effect in pain control without concern for clinically significant pharmacokinetic interactions. This combined approach can be made use of to reduce the dose of an individual agent, its side effects, and to enhance therapeutic response compared to a single agent. Pharmacokinetics, drug interactions, and adverse reaction to combinations have to be taken into consideration before combination therapy with gabapentin and pregabalin is proposed as first-line treatment in refractory pain situations and in patients with low levels of tolerance for an individual agent. PMID- 29023145 TI - Mechanical properties and drug release of venlafaxine HCl solid mini matrices prepared by hot-melt extrusion and hot or ambient compression. AB - : Objective/significance: To elucidate the role of plasticizers in different mini matrices and correlate mechanical properties with drug release. METHODS: Cylindrical pellets were prepared by hot-melt extrusion (HME) and mini tablets by hot (HC) and ambient compression (AC). Venlafaxine HCl was the model drug, Eudragit(r) RSPO the matrix former and citric acid or Lutrol(r) F127 the plasticizers. The matrices were characterized for morphology, crystallinity, and mechanical properties. The influence of plasticizer's type and content on the extrusion pressure (Pe) during HME and ejection during tableting was examined and the mechanical properties were correlated with drug release parameters. RESULTS: Resistance to extrusion and tablet ejection force were reduced by Lutrol(r) F127 which also produced softer and weaker pellets with faster release, but harder and stronger HC tablets with slower release. HME pellets showed greater tensile strength (T) and 100 times slower release than tablets. Pe correlated with T and resistance to deformation of the corresponding pellets (r2 = 0.963 and 0.945). For both HME and HC matrices the decrease of drug release with T followed a single straight line (r2 = 0.990) and for HME the diffusion coefficient (De) and retreat rate constant (kb) decreased linearly with T (r2 = 0.934 and 0.972). CONCLUSIONS: Lutrol(r) F127 and citric acid are efficient plasticizers and Lutrol(r) F127 is a thermal binder/lubricant in HC compression. The different bonding mechanisms of the matrices were reflected in the mechanical strength and drug release. Relationships established between T and drug release parameters for HME and HC matrices may be useful during formulation work. PMID- 29023147 TI - Nitrogen Oxides in Early Earth's Atmosphere as Electron Acceptors for Life's Emergence. AB - We quantify the amount of nitrogen oxides (NOx) produced through lightning and photochemical processes in the Hadean atmosphere to be available in the Hadean ocean for the emergence of life. Atmospherically generated nitrate (NO3-) and nitrite (NO2-) are the most attractive high-potential electron acceptors for pulling and enabling crucial redox reactions of autotrophic metabolic pathways at submarine alkaline hydrothermal vents. The Hadean atmosphere, dominated by CO2 and N2, will produce nitric oxide (NO) when shocked by lightning. Photochemical reactions involving NO and H2O vapor will then produce acids such as HNO, HNO2, HNO3, and HO2NO2 that rain into the ocean. There, they dissociate into or react to form nitrate and nitrite. We present new calculations based on a novel combination of early-Earth global climate model and photochemical modeling, and we predict the flux of NOx to the Hadean ocean. In our 0.1-, 1-, and 10-bar pCO2 models, we calculate the NOx delivery to be 2.4 * 105, 6.5 * 108, and 1.9 * 108 molecules cm-2 s-1. After only tens of thousands to tens of millions of years, these NOx fluxes are expected to produce sufficient (micromolar) ocean concentrations of high-potential electron acceptors for the emergence of life. Key Words: Nitrogen oxides-Nitrate-Nitrite-Photochemistry-Lightning-Emergence of life. Astrobiology 17, 975-983. PMID- 29023148 TI - Nonstandardized Terminology to Describe Focal Liver Lesions in Patients at Risk for Hepatocellular Carcinoma: Implications Regarding Clinical Communication. AB - OBJECTIVE: The purpose of this study is to determine the correlation between malignancy risk of focal liver observations in patients at risk for hepatocellular carcinoma (HCC) implied by phrases used in nonstructured radiology reports with the risk inferred by hepatologists. MATERIALS AND METHODS: We performed a retrospective review of nonstructured radiology reports issued before Liver Imaging and Reporting Data System (LI-RADS) adoption from four-phase liver CT examinations of patients at risk for HCC. The phrase used by the radiologist in the report impression to describe each focal liver observation was recorded. Five hepatologists independently inferred the LI-RADS category from each phrase. Two abdominal radiologists independently reviewed the images and, blinded to all other information, assigned a LI-RADS category to each observation. Discrepancies were resolved by consensus. RESULTS: One hundred five observations in 77 patients were reported by 23 radiologists using 29 phrases. The most common phrase, "consistent with HCC" (n = 20), was applied to radiologist-assigned LR-3 (n = 1), LR-4 (n = 5), LR-5 (n = 11), and LR-5V (n = 3) observations. Eleven phrases were used more than once. Sixteen phrases were associated with LR-4 or higher observations; among these, hepatologists misinterpreted 37% of LR-4 or lower observations as definitely HCC and 46% of LR-5 and LR-5V observations as not definitely HCC. Overall, there was modest correlation (r = 0.69) between radiologist-assigned and hepatologist-inferred categories. CONCLUSION: Nonstandardized terminology results in inaccurate communication of HCC risk. Structured reporting systems such as LI-RADS may improve communication by conveying unambiguous estimates of malignancy risk. PMID- 29023149 TI - Benign Posttraumatic Pseudopneumoperitoneum. AB - OBJECTIVE: The objective of our study was to retrospectively determine the anatomic distribution of chest wall ectopic gas resembling pneumoperitoneum (i.e., pseudopneumoperitoneum) and its relationship with trauma mechanisms and clinical outcomes using CT. MATERIALS AND METHODS: Investigators from two separate trauma referral centers screened 492 chest, abdomen, and pelvis CT examinations of patients who had sustained any form of trauma between 2010 and 2015. After excluding 186 patients with recognized causes of ectopic gas, 306 patients (211 men and 95 women; mean age, 44.5 years; range, 6-95 years) remained for analysis by two radiology residents in center 1 and a radiology resident in center 2. Positive cases were reviewed by all investigators, including an experienced fellowship-trained abdominal radiologist. The anatomic location of the pseudopneumoperitoneum, injury severity score, trauma velocity (high speed vs low or unknown speed), trauma mechanism, clinical findings on follow-up, and exploratory laparotomy data were collected for patients with pseudopneumoperitoneum. Two hundred consecutive nontrauma CT examinations from 2015 were selected as control cases by a resident in center 1. The t test and chi square test were used for determining associations. RESULTS: Pseudopneumoperitoneum was identified in 5.2% of patients, occurring bilaterally adjacent to the lower six costochondral junctions, and was significantly more common with high-velocity trauma than with low-velocity trauma (p = 0.010). None of the patients with pseudopneumoperitoneum had evidence of perforated hollow viscus at surgery (n = 2) or on clinical follow-up (n = 14). No patients had unnecessary surgery due to pseudopneumoperitoneum. CONCLUSION: Pseudopneumoperitoneum is a posttraumatic phenomenon centered near the lower six costochondral junctions. Recognizing these findings may help prevent unnecessary laparotomy in the trauma setting. PMID- 29023150 TI - Incisional Hernia Repair: What the Radiologist Needs to Know. AB - OBJECTIVE: Incisional hernias are becoming more prevalent with increases in the obesity of the population and the complexity of abdominal surgeries. Radiologists' understanding of these hernias is limited. This article examines abdominal wall anatomy, surgical techniques, the role of imaging (current and emerging), and complications from the surgical perspective, to enhance to the role of the radiologist. CONCLUSION: Knowledge of the relevant anatomy, surgical techniques, and postoperative complications in patients with incisional hernial repair can help the radiologist improve care. PMID- 29023152 TI - Primary Hepatic Neoplasms of Vascular Origin: Key Imaging Features and Differential Diagnoses With Radiology-Pathology Correlation. AB - OBJECTIVE: This article describes, illustrates, and correlates imaging and pathologic features of primary vascular mesenchymal neoplasms of the liver, which arise from the vascular endothelium and perivascular epithelioid cells. CONCLUSION: Familiarity with the spectrum of benign, malignant-potential and malignant vascular neoplasms, and nonneoplastic mimickers allows consideration in the differential diagnosis of enhancing hepatic masses. Understanding relevant pathologic features facilitates recognition of key imaging features, specifically dynamic contrast enhancement patterns on CT and MRI, which provide a useful classification system. PMID- 29023151 TI - Interpretive Differences Between Patients and Radiologists Regarding the Diagnostic Confidence Associated With Commonly Used Phrases in the Radiology Report. AB - OBJECTIVE: Despite patients' increasing interest in reading their own imaging results, little is known about how patients interpret the reporting terminology of radiologists. The purpose of this study was to survey patients and radiologists to improve understanding of how each group views commonly used phrases within the radiology report. SUBJECTS AND METHODS: Patients and radiologists were asked to assign a numerical likelihood of the presence of metastatic disease based on their understanding of radiology report phrasing. Commonly used qualifying phrases, such as "likely represents," "concerning for," and "cannot exclude" were evaluated to compare differences in interpretation between patients and radiologists. Potential responses for statistical likelihoods included 0-25%, 26-50%, 51-75%, 76-99%, and 100%. RESULTS: There was a significant difference between the two groups with respect to assigned statistical likelihoods for most phrases. Patients identified the phrase "probably meta-static disease" as conferring the highest likelihood of true malignancy, even though radiologists rated this phrase as conferring the sixth highest likelihood (p = 0.002). Radiologists consistently identified the phrase "diagnostic for metastatic disease" as conveying the highest likelihood of metastatic disease, whereas patients ranked this phrase as having the third highest numerical likelihood (p < 0.001). The phrase "cannot exclude cancer" was assigned the lowest numerical likelihood by both groups. CONCLUSION: Patients and radiologists have differing perceptions of the specific semantic meaning of the language in radiology reports. A variable interpretation of the radiologist's diagnostic confidence may lead to confusion and dissatisfaction with the report. Radiologists should consider that patients read their reports and should endeavor to use strategies to convey imaging results clearly and effectively. PMID- 29023153 TI - Predictability of 99mTc-Galactosyl Human Serum Albumin Scintigraphy for Posthepatectomy Liver Failure. AB - OBJECTIVE: Posthepatectomy liver failure (PHLF) is one of the most serious complications after hepatectomy. The objective of the present study is to assess the potential diagnostic ability of 99mTc-galactosyl human serum albumin (GSA) scintigraphy to predict PHLF as defined by the International Study Group of Liver Surgery (ISGLS). MATERIALS AND METHODS: Data from 100 patients who underwent 99mTc-GSA scintigraphy and subsequent hepatectomy were retrospectively analyzed. The blood clearance ratio (HH15), hepatic uptake ratio (LHL15), and maximal removal rate (Rmax) of 99mTc-GSA (GSA-Rmax) were calculated as scintigraphic parameters for the total liver. In addition to the ratio of preoperatively estimated remnant liver (ERL) counts to total liver counts (rERL-GSA), the ratio of actual remnant liver (ARL) counts to total liver counts (rARL-GSA), determined by applying a more accurate resection line with reference to both pre- and postoperative CT, was obtained from SPECT images. Functional remnant liver parameters of ERL-LHL15 (LHL15 of the estimated remnant liver), ERL-Rmax (maximal removal rate of estimated remnant liver counts), ARL-LHL15 (LHL15 of the actual remnant liver), and ARL-Rmax (maximal removal rate of actual remnant liver counts) were calculated using these values. ROC analysis was performed to evaluate the ability of these parameters to predict PHLF. Multivariate analysis was performed to identify independent predictors of PHLF. RESULTS: PHLF occurred in 33 patients. Each of the ARL parameters had a significantly higher diagnostic performance compared with the corresponding ERL parameter (AUC values: for rARL GSA vs rERL-GSA, 0.77 vs 0.62 [p = 0.0004]; for ARL-LHL15 vs ERL-LHL15, 0.79 vs 0.64 [p = 0.0005]; and for ARL-Rmax vs ERL-Rmax, 0.78 vs 0.66 [p = 0.0003]). According to multivariate analysis, each of three ARL parameters was identified as an independent predictor of PHLF (p < 0.0001 for all). CONCLUSION: Technetium 99m-labeled GSA scintigraphy is useful for predicting PHLF, particularly for applying an accurate resection line on GSA-SPECT images. PMID- 29023154 TI - Diagnostic Performance of DWI for Differentiating High- From Low-Grade Clear Cell Renal Cell Carcinoma: A Systematic Review and Meta-Analysis. AB - OBJECTIVE: The purpose of our study was to review the diagnostic performance of DWI for differentiating high- from low-grade clear cell renal cell carcinoma (RCC). MATERIALS AND METHODS: MEDLINE, EMBASE, and Cochrane library databases were searched up to March 15, 2017. We included diagnostic accuracy studies that used DWI for differentiating high- from low-grade clear cell RCC compared with histopathologic results of Fuhrman grade based on nephrectomy or biopsy specimens in original research articles. Two independent reviewers assessed methodologic quality using the Quality Assessment of Diagnostic Accuracy Studies 2 tool. Sensitivity and specificity of the included studies were pooled and graphically presented using a hierarchic summary ROC plot. For heterogeneity exploration, we assessed the presence of a threshold effect and performed meta-regression analyses. RESULTS: Eight retrospective studies (394 patients with 397 clear cell RCCs) were included. Pooled sensitivity was 0.78 (95% CI, 0.68-0.85) with a specificity of 0.86 (95% CI, 0.70-0.94). A considerable threshold effect was observed with a correlation coefficient of 0.811 (95% CI, 0.248-0.964) between the sensitivity and false-positive rate. At meta-regression analysis, apparent diffusion coefficient (* 10 mm2/s) cutoff value (< 1.57 vs >= 1.57; p = 0.03) and location of ROI (solid portion vs whole tumor; p = 0.04) were significant factors affecting heterogeneity. Other factors with regard to patients and tumors, study, and MRI characteristics were not significant (p = 0.17-0.91). CONCLUSION: DWI shows moderate diagnostic performance for differentiating high-from low-grade clear cell RCC. Substantial heterogeneity was observed because of a threshold effect. Further prospective studies may be needed; all included studies were retrospective. PMID- 29023155 TI - CSF Venous Fistulas in Spontaneous Intracranial Hypotension: Imaging Characteristics on Dynamic and CT Myelography. AB - OBJECTIVE: The objective of this study is to describe the anatomic and imaging features of CSF venous fistulas, which are a recently reported cause of spontaneous intracranial hypotension (SIH). MATERIALS AND METHODS: We retrospectively reviewed the records of patients with SIH caused by CSF venous fistulas who received treatment at our institution. The anatomic details of each fistula were recorded. Attenuation of the veins involved by the fistula was compared with that of adjacent control veins on CT myelography (CTM). Visibility of the CSF venous fistula on CTM and a modified conventional myelography technique we refer to as dynamic myelography was also compared. RESULTS: Twenty two cases of CSF venous fistula were identified. The fistulas were located between T4 and L1. Ninety percent occurred without a concurrent epidural CSF leak. In most cases (82%), the CSF venous fistula originated from a nerve root sleeve diverticulum. On CTM, the abnormal veins associated with the CSF venous fistula were seen in a paravertebral location in 45% of cases, centrally within the epidural venous plexus in 32%, and lateral to the spine in 23%. Differences in attenuation between the fistula veins and the control veins was highly statistically significant (p < 0.0001), with a threshold of 70 HU perfectly discriminating fistulas from normal veins in our series. When both CTM and dynamic myelography were performed, the fistula was identified on both modalities in 88% of cases. CONCLUSION: CSF venous fistulas are an important cause of SIH that can be detected on both CTM and dynamic myelograph y and may occur without an epidural CSF leak. Familiarity with the imaging characteristics of these lesions is critical to providing appropriate treatment to patients with SIH. PMID- 29023156 TI - Stem Cell Therapy for Articular Cartilage Repair: Review of the Entity of Cell Populations Used and the Result of the Clinical Application of Each Entity. AB - BACKGROUND: Following successful preclinical studies, stem cell therapy is emerging as a candidate for the treatment of articular cartilage lesions. Because stem cell therapy for cartilage repair in humans is at an early phase, confusion and errors are found in the literature regarding use of the term stem cell therapy in this field. PURPOSE: To provide an overview of the outcomes of cartilage repair, elucidating the various cell populations used, and thus reduce confusion with regard to using the term stem cell therapy. STUDY DESIGN: Systematic review. METHODS: The authors systematically reviewed any studies on clinical application of mesenchymal stem cells (MSCs) in human subjects. A comprehensive search was performed in MEDLINE, EMBASE, the Cochrane Library, CINAHL, Web of Science, and Scopus for human studies that evaluated articular cartilage repair with cell populations containing MSCs. These studies were classified as using bone marrow-derived MSCs, adipose tissue-derived MSCs, peripheral blood-derived MSCs, synovium-derived MSCs, and umbilical cord blood derived MSCs according to the entity of cell population used. RESULTS: Forty-six clinical studies were identified to focus on cartilage repair with MSCs: 20 studies with bone marrow-derived MSCs, 21 studies with adipose tissue-derived MSCs, 3 studies with peripheral blood-derived MSCs, 1 study with synovium-derived MSCs, and 1 study with umbilical cord blood-derived MSCs. All clinical studies reported that cartilage treated with MSCs showed favorable clinical outcomes in terms of clinical scores or cartilage repair evaluated by MRI. However, most studies were limited to case reports and case series. Among these 46 clinical studies, 18 studies erroneously referred to adipose tissue-derived stromal vascular fractions as "adipose-derived MSCs," 2 studies referred to peripheral blood-derived progenitor cells as "peripheral blood-derived MSCs," and 1 study referred to bone marrow aspirate concentrate as "bone marrow-derived MSCs." CONCLUSION: Limited evidence is available regarding clinical benefit of stem cell therapy for articular cartilage repair. Because the literature contains substantial errors in describing the therapeutic cells used, researchers need to be alert and observant of proper terms, especially regarding whether the cells used were stem cells or cell populations containing a small portion of stem cells, to prevent confusion in understanding the results of a given stem cell based therapy. PMID- 29023157 TI - Public Health and School Nurses' Perceptions of Barriers to HPV Vaccination in Missouri. AB - Human Papilloma Virus (HPV) is associated with various forms of cancer and is preventable with vaccination. Nurses are in a unique position to directly influence a person's decision to receive the HPV vaccine. A statewide sample of both school and public health nurses was used to assess knowledge and attitudes related to the HPV vaccine as well as nurse's behaviors and behavioral intentions toward educating parents and recommending the vaccine. Positive attitudes and adequate knowledge levels were found, however, the majority of school nurses did not provide information and resources to parents. Targeted health promotion programs for school nurses are recommended. PMID- 29023158 TI - Healthy Families: A Family-Based Community Intervention To Address Childhood Obesity. AB - The objective of this study was to determine the effectiveness of Healthy Families, a family-based community intervention, in improving the knowledge, self efficacy, and health behaviors of overweight/obese children and their families as well as to explore the lessons learned. Results showed families who completed the program had significant improvements for children and parents in areas such as nutrition knowledge and self-efficacy in making healthy eating choices as well as participating in physical activity. Additionally, families reported decreasing their intake of sugar-sweetened beverages. Participating families and community partners provided valuable lessons for other communities seeking to implement a similar program. PMID- 29023160 TI - Collaborating with Public Housing Residents and Staff to Improve Health: A Mixed Methods Analysis. AB - This study described the health behaviors and barriers and facilitators of those behaviors in elderly and/or disabled residents of public housing. A mixed-methods design was used. Residents (N = 88) completed a survey with validated measures of health behaviors. A sub-sample (N = 16) participated in three focus groups. Residents scored worse than population norms on the majority of behaviors measured. Qualitative results framed in an ecological model indicated the majority of facilitators and barriers to health behaviors were perceived as occurring at the intrapersonal and interpersonal levels. Interventions to promote health should consider the unique barriers and facilitators to health behaviors among residents. PMID- 29023161 TI - An Integrative Review of Factors Associated with Patient Attrition from Community Health Worker Programs that Support Diabetes Self-Care. AB - An integrative review was conducted using PubMed and CINAHL databases to answer: What is known about adult attrition from community health worker (CHW) programs on diabetes self-care? The 14 articles described patients of multiple races who were mainly of lower socioeconomic status. CHW interventions were given in individual meetings and/or group sessions. Incentives to reduce attrition came in different forms. Barriers involved transportation, family obligations, and scheduling conflicts. Attrition from these programs is a multifactorial problem. Alleviating transportation barrier appears to be protective. Program planners should consider these barriers when planning CHW programs. PMID- 29023162 TI - Bullying: Effects on School-Aged Children, Screening Tools, and Referral Sources. AB - Bullying is not a new concept or behavior, and is now gaining national attention as a growing public health concern. Bullying leads to short- and long-term physical and psychological damage to both the victims and the bullies. The serious implications of bullying drive a clinical mandate for teachers and school nurses to be educated and adequately trained to identify and address bullying within schools. This review of the literature describes screening tools that can be utilized to identify both victims and bullies. In addition, referral services utilizing collaborative intervention measures are discussed. This literature review will help school nurses and teachers to identify and expand their role in school-wide bullying prevention and intervention measures. PMID- 29023163 TI - Asthma exacerbations and socio-economic status in French adults with persistent asthma: A prospective cohort study. AB - INTRODUCTION: Adults disadvantaged by poor socio-economic status (SES) are more severely affected by asthma compared to those with better SES. We aimed to determine whether the frequency of asthma exacerbations (AEx), as well as aspects related to AEx management, differed based on SES in patients treated with daily treatments. METHODS: This study, part of the prospective observational cohort ASTRO-LAB, included French adult patients with persistent asthma. Patients were considered as low SES if they benefited from publicly funded special health insurance and/or were perceived as low SES by their general practitioner. AEx was defined as at least one of the following: asthma-related oral corticosteroid course, medical contact, hospitalization, and death. We examined associations between SES and AEx frequency, perceived triggering factors and type of medical contact after AEx. RESULTS: In our sample of 255 patients, 11.40% were considered as low SES. Patients with low SES did not report significantly more AEx than medium/high SES patients during one-year follow-up (0.79 versus 0.55, p = 0.38). The type of medical contact during AEx differed significantly between the two groups (p = 0.03): patients with medium/high SES consulted their general practitioner more frequently (OR = 2.23, 95% CI = 0.91-5.50, p = 0.08) and were less likely to visit an emergency department or be hospitalized (OR = 0.27, 95% CI = 0.09-0.84, p = 0.02). CONCLUSIONS: AEx frequency did not differ significantly between low and medium/high SES patients, but differences were found in the management of AEx. Studies are needed to better understand the relation between precariousness and management of asthma. PMID- 29023165 TI - Clinical Characteristics of Ocular Sarcoidosis: A Population-Based Study 1976 2013. AB - PURPOSE: To characterize the epidemiology and clinical characteristics of ocular involvement in patients with systemic sarcoidosis. METHODS: An inception cohort of patients with systemic sarcoidosis in 1976-2013 in Olmsted County, Minnesota, was identified based on comprehensive individual medical record review. Medical records of those patients were then reviewed for ocular involvement. RESULTS: A total of 345 incident cases of systemic sarcoidosis were identified. Ocular involvement occurred in 23 patients (7%). The most common ocular disease was uveitis (61%) followed by dry eye disease, conjunctival nodule, episcleritis, anterior scleritis, and conjunctivitis. Anterior uveitis was the most common type of uveitis (71%). The visual outcome of uveitis was favorable with only one patient lost three or more lines of VA during follow-up and had VA of less than 20/200 at last visit. CONCLUSION: Ocular involvement occurred in 7% of sarcoidosis patients. Uveitis was the most common type of ocular disease. PMID- 29023166 TI - Prehospital Stroke Assessment for Large Vessel Occlusions: A Systematic Review. AB - BACKGROUND AND OBJECTIVE: Stroke is the leading cause of disability in the United States and new evidence shows interventional procedures provide better outcomes for large vessel occlusions (LVO). We performed a systematic review of the literature on prehospital stroke scales used to identify LVOs comparing the scales with analysis of the sensitivity, specificity, and predictive values. The goal was to determine if emergency medical services (EMS) are able to accurately identify LVO in the field. METHODS: In this systematic review, multiple databases were searched for articles that addressed our goal. The identified studies were evaluated for their statistical performance of various stroke scales. In addition, we assessed biases that may explain the varying results reported. RESULTS: Eight studies encompassing 6787 patients were included in our systematic review. Of the 8 studies, 6 were retrospective studies, 1 was a prospective cohort, and 1 was a prospective observational study. Sensitivities of the studies ranged from 49% to 91% while specificity of the studies varied from 40% to 94%. CONCLUSION: At this time, further evaluations must be done in the prehospital setting to determine the ease of use and true sensitivity and specificity of these scales in identifying LVOs. PMID- 29023167 TI - State Regulation of Community Paramedicine Programs: A National Analysis. AB - BACKGROUND: Community Paramedicine (CP) is a rapidly evolving field within prehospital care where paramedics step outside of their traditional roles of treating acute conditions to provide elements of primary and preventive care. It is unclear if current state oversight regarding the scope of practice (SOP) for paramedics provides clear guidance on the novel functions provided and skills performed by CP programs. OBJECTIVE: To determine the process and authority, as currently defined by state laws and regulations in the United States, to expand paramedic SOP in order to perform CP roles and to assess state EMS agencies' interpretation of paramedic SOP as it applies to CP. METHODS: We conducted a systematic review of laws, regulations, and policies from the 50 U.S. states in effect between February and June 2016 that define or apply to paramedic SOP. We determined whether each state's SOP included 21 potential skills applicable to CP within the following categories: assessment, treatment & intervention, referrals, and prevention & public health. Laws were also queried for mechanisms for expanding SOP, alternate destinations, and community paramedicine for each state. Additionally, we surveyed representatives from U.S. State Emergency Medical Services (EMS) agencies and asked which of these skills were a part of their current SOP. All data was coded into ExcelTM and analyzed using descriptive statistics. RESULTS: All 50 U.S. states have laws relating to EMS. Forty-one states have a statewide SOP (82%), and 3 states have statewide protocols from which the SOP has been inferred for purposed of this study, but may not legally constitute SOP in this jurisdiction (6%). 20 states (40%) had a clearly defined mechanism for expanding SOP. Sixteen states (32%) had laws specific to CP. Seven states (14%) allowed for patients to be transported to alternate destinations. Of the 21 skills surveyed, on average there were 8.63 (6.41-10.85) fewer skills for paramedics found in state SOP laws and regulations than were reported as being a part of a state's paramedic SOP. All skills demonstrated variability between the legal review and survey results with 13.04-96.15% concordance. CONCLUSION: There is a lack of guidance and consistency regarding CP programs and scope of practice. Further studies are needed to understand best practices around regulation and oversight of CP. PMID- 29023168 TI - Development and characterization of cationic solid lipid nanoparticles for co delivery of pemetrexed and miR-21 antisense oligonucleotide to glioblastoma cells. AB - The practical use of solid lipid nanoparticles (SLNs) in research has been highlighted in the literature, but few reports have combined SLNs with miRNA based therapy and chemotherapy. We aimed to prepare cationic SLNs (cSLNs) to load anti-miR-21 oligonucleotide and pemetrexed for glioblastoma therapy in vitro. cSLNs were employed to encapsulate both pemetrexed and anti-miR-21 by a high pressure homogenization method, and then the properties of cSLNs were characterized. We studied cellular uptake and cytotoxicity properties of cSLNs in U87MG cells. cSLNs were 124.9 +/- 1.6 nm in size and 27.3 +/- 1.6 mV in zeta potential with spherical morphology in the TEM image. cSLNs uptake by U87MG cells was increased significantly higher and more effective than free pemetrexed. These findings suggest that cSLNs represent a potential new approach for carrying both pemetrexed and anti-miR-21 for glioblastoma therapy. PMID- 29023169 TI - Associations of Physical Activity and Sedentary Behaviour with Vision-Threatening Diabetic Retinopathy in Indonesian Population with Type 2 Diabetes Mellitus: Jogjakarta Eye Diabetic Study in the Community (JOGED.COM). AB - PURPOSE: To investigate the association of physical activity (PA) and sedentary behaviour with diabetic retinopathy (DR) in type 2 diabetes adults. METHODS: A community-based cross-sectional study of adults with type 2 diabetes. DR was assessed from disc- and macula-centred fundus photograph, and categorised into mild, moderate non-proliferative DR (NPDR), and Vision-Threatening DR (VTDR). Worse eye was used to determine the person's DR severity. PA was assessed using WHO Global Physical Activity Questionnaire (GPAQ). All of the PA components, including daily sitting time, walking distance, sleeping duration, and exercise were converted based on the physical activity ratio and then calculated to obtain the mean physical activity level (PAL). The mean PAL was then classified into sedentary, moderate, and vigorous lifestyle. RESULTS: There were 1116 participants, 43.1% with any DR and 26.3% VTDR. The prevalence of DR/VTDR in sedentary, moderate, and vigorous physical activity group was 41.9%/22.7%, 39.2%/23.9%, and 32.7%/20.4% respectively. A longer duration of daily sedentary lifestyle (>3 hours) was significantly associated with presence of DR (OR 1.66; 95% CI 1.17-2.35; p < 0.01) and VTDR (OR 1.74; 1.16-2.62; p < 0.01). These associations remained significant after adjusting for age, gender, duration of diabetes, systolic blood pressure and physical activity. There was no significant association between sleeping duration, walking distance, and vigorous activity and DR. CONCLUSIONS: In this study, prolonged daily sedentary activity was strongly associated with VTDR. This finding suggests that public health campaign for reducing daily sedentary activities in individuals with type 2 diabetes may offer benefit to reduce the burden of DR and VTDR. PMID- 29023170 TI - AMPA receptors and perampanel behind selected epilepsies: current evidence and future perspectives. AB - INTRODUCTION: The alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptors are the major mediators of glutamate-mediated excitatory neurotransmission, and are critical for synchronization and spread of epileptic activity. Areas covered: AMPA receptor antagonists have been also developed as antiepileptic drugs and perampanel (PER) is the first highly selective, non competitive AMPA-type glutamate receptor antagonist that is available on the market. It is approved as adjunctive therapy for the treatment of partial-onset seizures with or without secondary generalization, and for primary generalized tonic-clonic seizures in idiopathic generalized epilepsy, in patients aged >= 12 years. This article reviews the role of AMPA receptors in the neuronal hyperexcitability underlying epilepsy, the mechanism of action and clinical experience on the anti-seizure activity of PER. Moreover, the rationale for targeting AMPA receptor in specific epileptic disorders, including brain tumor related epilepsy, mesial temporal lobe epilepsy with/without hippocampal sclerosis, and status epilepticus is evaluated. Finally, the pharmacological rationale for the development of AMPA receptor antagonists in other neurological disorders beyond epilepsy is considered. Expert opinion: Further research aimed at better understanding the pharmacology and blocking mechanism of PER and other AMPA receptor antagonists will drive future development of therapeutic agents that target epilepsy and other neurological diseases. PMID- 29023171 TI - Anemia in children: prevalence, causes, diagnostic work-up, and long-term consequences. AB - INTRODUCTION: Anemia in children is a major public health problem throughout the world. It is often multifactorial, iron deficiency being the most frequent etiology. Consequences are diverse and largely under evaluated. Areas covered: This paper briefly reviews the main causes and focus on the potential consequences of acute and chronic anemia in children. Expert commentary: Anemia in children should never be trivialized. Even if iron deficiency is frequently involved, other potentially life-threatening causes are possible and should be looked for. The exact contribution of anemia to child mortality and morbidity is difficult to assess because of overlapping comorbidities. Chronic anemia may impair growth, cardiac function and cognitive development in infants but other consequences are rather poorly described and should be explored more thoroughly. PMID- 29023172 TI - Basic and Advanced EMS Providers Are Equally Effective in Naloxone Administration for Opioid Overdose in Northern New England. AB - OBJECTIVE: Overdose mortality from illicit and prescription opioids has reached epidemic proportions in the United States, especially in rural areas. Naloxone is a safe and effective agent that has been shown to successfully reverse the effects of opioid overdose in the prehospital setting. The National EMS Scope of Practice Model currently only recommends advanced life support (ALS) providers to administer naloxone; however, some individual states have expanded this scope of practice to include intranasal (IN) administration of naloxone by basic life support (BLS) providers, including the Northern New England states. This study compares the effectiveness and appropriateness of naloxone administration between BLS and ALS providers. METHODS: All Vermont, New Hampshire, and Maine EMS patient encounters between April 1, 2014 and December 31, 2016 where naloxone was administered were examined and 3,219 patients were identified. The proportion of successful reversals of opioid overdose, based on improvement in the Glasgow Coma Scale (GCS), respiratory rate (RR), and provider global assessment (GA) of response to medication was compared between BLS and ALS providers using a Chi Squared statistic, Fisher's exact or Wilcoxon rank-sum test. RESULTS: There was no significant difference in the percent improvement in GCS between BLS and ALS (64% and 64% P = 0.94). There was no significant difference in the percentage of improvement in RR between BLS and ALS (45% and 48% P = 0.43). There was a significant difference in the percentage of improvement of GA between BLS and ALS (80% and 67% P < 0.001). There was no significant difference in determining appropriate cases to administer naloxone where RR < 12 and GCS < 15 between BLS and ALS (42% and 43% P = 0.94). CONCLUSIONS: BLS providers were as effective as ALS providers in improving patient outcome measures after naloxone administration and in identifying patients for whom administration of naloxone is appropriate. These findings support expanding the National EMS Scope of Practice Model to include BLS administration of intranasal naloxone for suspected opioid overdoses. PMID- 29023173 TI - Health science center faculty attitudes towards interprofessional education and teamwork. AB - The attitudes of faculty towards interprofessional education (IPE) and teamwork impact the education of health professions education (HPE) students. This paper reports on a study evaluating attitudes from health professions educators towards IPE and teamwork at one academic health science center (HSC) where modest IPE initiatives have commenced. Drawing from the results of a previous investigation, this study was conducted to examine current attitudes of the faculty responsible for the training of future healthcare professionals. Survey data were collected to evaluate attitudes from HSC faculty, dentistry, nursing, medicine, pharmacy and public health. In general, positive HSC faculty attitudes towards interprofessional learning, education, and teamwork were significantly predicted by those affiliated with the component of nursing. Faculty development aimed at changing attitudes and increasing understanding of IPE and teamwork are critical. Results of this study serve as an underpinning to leverage strengths and evaluate weakness in initiating IPE. PMID- 29023174 TI - Subjective responses to sprint interval exercise in adults with and without Exercise-induced bronchoconstriction. AB - OBJECTIVE: Little is known of the subjective response to exercise that involves short "all out" bursts of effort, separated by recovery periods (sprint interval exercise (SPRINT)) among adults with exercise-induced bronchoconstriction (EIBC). The purpose of this study was to compare subjective responses to SPRINT and moderate intensity continuous exercise (MOD) among adults with EIBC, and to compare these responses between adults with EIBC and those without EIBC. METHODS: Eight adults (22.3 +/- 3.0 years) with EIBC, and eight adults (22.3 +/- 3.0 years) without EIBC completed a SPRINT (4 * 30 second sprints separated by 4.5 minutes of active recovery) and MOD (20 minutes at 65% peak power output) session in random order. Self-reported affect, perceived breathlessness, and perceived exertion were recorded throughout exercise using validated scales. Enjoyment was assessed following exercise. RESULTS: Differences between SPRINT and MOD were observed such that affect and perceived breathlessness were worse during the initial stages of SPRINT than MOD; however, differences disappeared by the end of exercise. Enjoyment was similar for SPRINT and MOD in the EIBC group (SPRINT: 72.9 +/- 20.0 vs. MOD: 79.5 +/- 20.5, p = 0.25), and between groups for SPRINT and MOD. CONCLUSIONS: Perceived breathlessness may impact affect during the early stages of exercise among those with EIBC. Post-exercise enjoyment appears to be similar between SPRINT and MOD. Future research is needed to better understand the relationship between ventilation patterns, exercise intensity, and enjoyment of exercise among those with EIBC. PMID- 29023175 TI - Complications and outcomes of grafting of posterior orbital fat into the lower lid-cheek junction during orbital decompression. AB - PURPOSE: To report the complications of grafting of excised posterior orbital fat into the lower lid-cheek junction at the time of orbital decompression surgery. METHODS: Retrospective review of consecutive patients undergoing orbital decompression combined with grafting of posterior orbital fat to the pre-malar and lateral canthal area (FG). A second group of consecutive patients undergoing orbital decompression but no orbital fat grafting (NoFG) were also studied as a form of comparative control. Standard patient data, including age, sex, visual acuity, degree of proptosis, operative details, diplopia or any other complications was collected. Independent assessment of pre- and post-operative photographs graded the lower lid-cheek junction. RESULTS: Thirty-four orbits of 29 patients, of which 21 orbits underwent orbital decompression with orbital fat grafting (FG). There were no intraoperative complications, postoperative infections, or visual loss. Complications relating to fat grafting included prolonged swelling in 3 (17%) patients at 3 months, in 1 case lasting 6 months, lower lid lumps in 3 (17%), and fat seepage in 1 (6%). The FG group achieved a greater improvement in the appearance of the lower-lid-cheek junction at 12 months in comparison to NoFG. Mean grade improvement 1.24 +/- 1.09 vs 0 +/- 0.82 (p = 0.025). Median follow-up was 20 months (range 6-30 months). CONCLUSION: Grafting of excised orbital fat during orbital decompression can improve the appearance of the lower lid-cheek junction in patients being treated for thyroid orbitopathy. However, 24% of patients will experience swelling and/or lumpiness requiring several months to settle or further fat excision. PMID- 29023176 TI - Induction of Vogt-Koyanagi-Harada Disease by Interferon-Alpha and Ribavirin Treatment in Patients with Hepatitis C: A Case Report and Review of the Literature. AB - PURPOSE: To describe a case of Vogt-Koyanagi-Harada disease (VKH) presenting in a hepatitis C patient after interferon-alpha (IFN-alpha) and ribavirin treatment. METHODS: A retrospective review of our patient and a review of the published literature. RESULTS: A 59 year-old man developed VKH after the four months of IFN alpha and ribavirin therapy for hepatitis C. The patient's VKH was controlled by systemic corticosteroids. The relationship between VKH and IFN-alpha is discussed based on the published literature. CONCLUSIONS: VKH is a rare autoimmune complication triggered by interferon-alpha therapy; the T-cell modulatory properties of IFN-alpha possibly contribute to this association. Early diagnosis of VKH and aggressive systemic corticosteroid intervention are essential for this type of IFN-alpha -related autoimmune complication. PMID- 29023177 TI - Is Remote Ischemic Conditioning of Benefit to Patients Undergoing Kidney Transplantation? AB - Renal ischemia-reperfusion injury (IRI), an inevitable event during kidney transplantation procedure, can result in delayed graft function or even primary nonfunction. In addition to strategies to limit IRI such as advancements in organ allocation systems and preservation of organs, and reduction in cold and warm ischemia time, remote ischemic conditioning (RIC) has attracted much attention in recent years. With promising findings and data suggesting a potential benefit of RIC in animal kidney transplantation models, a few clinical trials have investigated the use of RIC in human kidney transplantation. Unfortunately, the findings from these investigations have been inconclusive due to a number of factors such as diverse time points of RIC, limited sample size, and complexity of kidney transplant patients. This brief commentary aims to discuss the effects of RIC on clinical outcomes and proinflammatory cytokines in patients undergoing kidney transplantation. PMID- 29023178 TI - Effect of Calcium Derived from Lithothamnion sp. on Markers of Calcium Metabolism in Premenopausal Women. AB - A double-blind crossover pilot trial tested the hypothesis that botanically derived calcium could demonstrate greater influence over calcium metabolism markers compared with a nonplant-derived calcium carbonate supplement or placebo. Twelve fasting female subjects received a single oral dose of Aquamin FTM (derived from the marine algal Lithothamnion sp.), or calcium carbonate, or placebo. Blood and urine samples were collected at baseline and over 12 h to evaluate ionized and total calcium and parathyroid hormone (PTH). Subjects treated with Aquamin F demonstrated significantly greater urinary clearance of calcium after 12 h compared with placebo (P = .004). Following a meal at 90 min, subjects treated with Aquamin F demonstrated a more prolonged suppression of serum PTH concentration (significantly lower than placebo at 90, 120, and 240 min). Calcium carbonate provided an intermediate response; urinary clearance was not significantly different from placebo treatment and PTH was only significantly lower than placebo at 90 min. Aquamin F may demonstrate greater influence over these markers of calcium metabolism than calcium carbonate or placebo, as suggested by a greater calciuric response and a more prolonged suppression of serum PTH concentrations following a meal in premenopausal women. PMID- 29023179 TI - Effect of platelet-rich plasma on patients after blepharoplasty surgery. AB - AIM: To evaluate the effect of platelet-rich plasma (PRP) treatment on patients after blepharoplasty surgery. MATERIALS AND METHODS: After undergoing blepharoplasty, 20 patients were randomly divided into two groups (n = 10 each). One was treated with autologous PRP and the other was not given any post-surgery treatment (basal group). Autologous PRP application was performed intradermically 24 h, 1 month, and 2 months post-surgery, and the outcome of the applications was assessed 1, 2, and 3 months post-surgery. The postoperative wound was assessed on a patient and observer scar assessment scale (POSAS) by patients and by an unblinded clinical observer. Statistical comparison between the two groups was analyzed by using the Mann-Whitney unpaired, two-tailed test. Significant differences were considered with P <= 0.05. RESULTS: Patient-reported data indicate that compared to the basal group, the PRP group showed no significant differences regarding pain, itching, or color, but had better values for stiffness and thickness (months 1 and 2) as well as scar irregularity (month 1). Data reported by the clinical observer showed that in comparison with the basal group, the PRP group showed no differences in vascularization or pigmentation, but had lower (better) scores regarding thickness, relief, and pliability (at all assessment times). The total assessment values from patients and the observer were significantly better for the PRP than the basal group. CONCLUSION: Autologous PRP treatment enhanced some parameters associated with healing properties, suggesting a potential therapeutic value after blepharoplasty surgery. PMID- 29023181 TI - Review for Disease of the Year: Varicella Zoster Virus-Induced Anterior Uveitis. AB - Varicella zoster virus (VZV)-induced anterior uveitis (AU) may complicate the course of primary varicella infection typically seen in children. In adults, especially with advanced age, VZV AU is more commonly associated with herpes zoster ophthalmicus (HZO) with or without skin rash affecting the distribution of the ophthalmic nerve due to reactivation of the latent VZV in the trigeminal ganglion. While it is typically a mild self-limiting AU in primary infection, HZO AU is often accompanied by keratitis, may have a chronic recurrent course, and lead to sectoral iris atrophy, pupillary distortion, and ocular hypertension. Diagnosis is often clinical and proven by analysis of aqueous humor for viral genome or antiviral antibodies. Systemic antiviral agents and topical steroids are the mainstay of treatment. Visual prognosis is favorable with timely diagnosis and appropriate treatment. PMID- 29023180 TI - Trends in Early Prenatal Care Among Women with Pre-Existing Diabetes: Have Income Disparities Changed? AB - BACKGROUND: Women with pre-existing diabetes are at high maternal risk for comorbidities and death, particularly when early prenatal care is not received. Low income is a known barrier to early prenatal care. It is unknown whether recent policies to expand access to prenatal care have reduced income disparities. We hypothesized that income disparities would be minimized and that the odds of receipt of first trimester prenatal care among women with pre existing diabetes would become similar across income strata over time. MATERIAL AND METHODS: Using the Colorado birth certificate registry from 2007 to 2014, receipt of prenatal care was assessed retrospectively in 2,497 women with pre existing diabetes. Logistic regression was used to examine the association between high (>$50,000), medium ($25,000-50,000), and low (<$25,000) income strata and receipt of first trimester prenatal care by birth year, adjusted for demographics. RESULTS: High, medium, and low income represented 29.5%, 19.0%, and 51.5% of the cohort, respectively. Women with high income were more likely to receive first trimester care than women with low income from 2007 [adjusted odds ratio, 95% confidence interval: 2.16 (1.18, 3.96)] through 2013 [1.66 (1.01, 2.73)], but significant differences were no longer observed in 2014 [1.59 (0.89, 2.84)]. The likelihood of receiving first trimester prenatal care was not significantly different between medium- and low-income strata from 2007 [1.07 (0.66, 1.74)] through 2014 [0.77 (0.48, 1.23)]. CONCLUSIONS: From 2007 to 2013, women in Colorado with diabetes were more likely to receive early prenatal care if they were in the highest income stratum than in the lowest stratum. In 2014, receipt of first trimester care became equitable across all income strata. Future work should examine national patterns of income with receipt of prenatal care and outcomes among women with pre-existing diabetes. PMID- 29023182 TI - Potential clinical utility of multiple system atrophy biomarkers. AB - INTRODUCTION: Multiple system atrophy (MSA), an adult-onset, fatal disorder of uncertain etiology, characterized by parkinsonism, cerebellar, autonomic and motor dysfunctions, is an alpha-synucleinopathy with glioneuronal degeneration involving multiple parts of the nervous system. The clinical variants correlate with the morphological phenotypes of striatonigral degeneration (MSA-P), olivoponto-cerebellar atrophy (MSA-C), and mixed type MSA. Neuropathological hallmark is the deposition of aberrant alpha-synuclein in glia and neurons forming cytoplasmic inclusions that cause cell dysfunction/demise. Areas covered: While our knowledge of the pathogenesis of this proteinopathy is still incomplete, updated consensus criteria and combined biomarkers have increased diagnostic accuracy. Multimodal imaging of structural and functional brain changes gives insight into the pathophysiology and may evaluate disease progression. Currently, the most useful CSF biomarkers are a combination of light chain neurofilament (elevated in MSA), catecholaminergic metabolites, and proteins (alpha-synuclein, DJ-1, tau). Several blood substances (neurofilament light chain, microRNAs) are non-invasive biomarkers. Expert commentary: Recent studies suggest that the combination of neuroimaging and fluid biomarkers may be more successful than using single markers to increase the accuracy of the clinical (differential) diagnosis of MSA. Multidisciplinary research to develop more reliable markers for a more exact and early diagnosis and targets for effective treatment are urgently needed. PMID- 29023183 TI - Attachment and Effortful Control in Toddlerhood Predict Academic Achievement Over a Decade Later. AB - A child's attachment to his or her caregiver is central to the child's development. However, current understanding of subtle, indirect, and complex long term influences of attachment on various areas of functioning remains incomplete. Research has shown that (a) parent-child attachment influences the development of effortful control and that (b) effortful control influences academic success. The entire developmental cascade among these three constructs over many years, however, has rarely been examined. This article reports a multimethod, decade long study that examined the influence of mother-child attachment and effortful control in toddlerhood on school achievement in early adolescence. Both attachment security and effortful control uniquely predicted academic achievement a decade later. Effortful control mediated the association between early attachment and school achievement during adolescence. This work suggests that attachment security triggers an adaptive cascade by promoting effortful control, a vital set of skills necessary for future academic success. PMID- 29023185 TI - Effectiveness of Low-Intensity Laser Therapy on Tissue Repair Following Saphenectomy in Patients Who Underwent Coronary Artery Bypass Graft: A Randomized, Double-Blind Study. AB - OBJECTIVE: To verify the effectiveness of low-intensity laser therapy (LLLT) on tissue repair following saphenectomy during postoperative period in patients having undergone coronary artery bypass graft (CABG). MATERIALS AND METHODS: A randomized clinical trial, controlled and double-blind study was conducted with 40 volunteers, divided into 2 groups: a placebo group (PG, n = 20) and a laser group (LG, n = 20). The patients in the LG group were irradiated with laser during saphenectomy (InGaAlP, lambda 660 nm, energy density 6 J/cm2) daily from the first to the fourth postoperative day. The surgical incision was clinically evaluated and imaged at the beginning and at the end of the treatment. The areas of hematoma and hyperemia were evaluated using the software ImageJ 1.4(c), and border closure was evaluated by three researchers, who were blinded concerning the allocation of the participants. RESULTS: The LG group presented a reduction of the areas of hematoma and hyperemia (p = 0.0003) and better border closure (p = 0.009), when compared with the PG group. CONCLUSIONS: The proposed LLLT protocol improved the tissue repair following saphenectomy in CABG patients. PMID- 29023184 TI - Disease-associated protein seeding suggests a dissociation between misfolded protein accumulation and neurodegeneration in prion disease. AB - Chronic neurodegenerative diseases, such as prion diseases or Alzheimer's disease, are associated with progressive accumulation of host proteins which misfold and aggregate. Neurodegeneration is restricted to specific neuronal populations which show clear accumulation of misfolded proteins, whilst neighbouring neurons remain unaffected. Such data raise interesting questions about the vulnerability of specific neuronal populations to neurodegeneration and much research has concentrated only on the mechanisms of neurodegeneration in afflicted neuronal populations. An alternative, undervalued and almost completely unstudied question however is how and why neuronal populations are resilient to neurodegeneration. One potential answer is unaffected regions do not accumulate misfolded proteins, thus mechanisms of neurodegeneration do not become activated. In this perspectives, we discuss novel data from our laboratories which demonstrate that misfolded proteins do accumulate in regions of the brain which do not show evidence of neurodegeneration and further evidence that microglial responses may define the severity of neurodegeneration. PMID- 29023186 TI - Photodynamic Therapy Associated with a Blue Dye Papain-Based Gel and Evaluation of Its Degradation of Type I Collagen Fibers. AB - OBJECTIVE: The aim of this in vitro study was to evaluate the degradation of type I collagen fibers after treatment with a papain-based gel associated with a blue dye (PapaMBlueTM) for use in antimicrobial photodynamic therapy. MATERIALS AND METHODS: For such, 60 bioabsorbable membrane sponge discs were used. Group 1 was the negative control group. In groups 2, 3, and 4, the papain-based gel PapaMBlue gel was applied all over the samples for 4 min and irradiated using red laser (660 +/- 10 nm) with 15, 30, and 40 J/cm2, respectively. In group 5, the papain based gel was applied all over the samples for 4 min. In group 6, the photosensitizing dye was applied all over the samples for 4 min. The compositional analysis of the samples was performed using ATR-FTIR (attenuated total reflectance-Fourier transformed infrared spectroscopy). The data were statistically analyzed using ANOVA and Tukey's test (p < 0.05). RESULTS: Neither classic PapacarieTM nor the modified product with a photosensitizing agent (PapaMBlue) promoted collagen degradation. CONCLUSIONS: The irradiation of methylene blue added to papain gel with red light did not alter the chemical structure of type I collagen. PMID- 29023187 TI - Manual Operated Ultraviolet Surface Decontamination for Healthcare Environments. AB - OBJECTIVE: The aim of this study was to evaluate the effectiveness of a new handheld equipment based on a mercury low-pressure vapor lamp. The Surface UV(r) device was tested in Staphylococcus aureus, Streptococcus mutans, Streptococcus pneumoniae, two strains of Escherichia coli, Pseudomonas aeruginosa, Candida albicans, and other clinical microorganisms isolated from different surfaces of a public health hospital. BACKGROUND DATA: The incidence of hospital infections has increased in recent years. Despite the variety of available chemicals to reduce the microorganisms, the search for antimicrobial agents and the characterization of novel targets are a continued need. Also, the minimization of chemical procedures is a constant need, and the use of ultraviolet (UV) light as a germicidal device for microorganisms' inactivation has been an alternative and one possible approach for the reduction of contamination. MATERIALS AND METHODS: The in vitro decontamination was performed by application of Surface UV in different species of microorganisms (study 1). The surface decontamination was carried out by application of Surface UV on each surface of hospital environment (study 2). The device presents ultraviolet C (UV-C) light at 254 nm and produces an irradiance of 13 mW/cm2 at a distance of 1 cm of the surfaces. The light dose was 0.78 J/cm2 for 60 sec of application in both studies. RESULTS: The results for in vitro decontamination indicated a log10 reduction factor of 6.5 for S. aureus, 6.7 for S. mutans, 6.2 for S. pneumoniae, 5.4 for E. coli, 5.2 for E. coli (ATCC 8739), 5.4 for P. aeruginosa, and 6.7 for C. albicans. The hospital level of microorganisms decreases more by 75% after the procedure. CONCLUSIONS: The study highlights the development and successful application of a new portable device that can reduce the risk of contamination in health settings. Our results suggest that Surface UV is efficient and may be an alternative decontamination method. PMID- 29023188 TI - Preliminary Experience with Instillation of Triamcinolone Acetonide into the Urethra for Idiopathic Urethritis: A Prospective Pilot Study. AB - BACKGROUND: Idiopathic bulbar urethritis (IBU) is characterized by hematuria +/- dysuria without infection. Symptoms result from inflammation of the bulbar urethra, distal to external sphincter. IBU is difficult to manage and there is no recommended therapy. OBJECTIVE: To determine whether instillation of triamcinolone acetonide is a useful treatment of IBU and its associated complications. SETTING AND PARTICIPANTS: Data were prospectively collected, for 22 months, on 14 consecutive patients presenting with terminal hematuria or blood spotting +/- dysuria to a pediatric urology unit. Median age was 12 years (range: 10-15). Mean symptom duration was 13 months (range: 8-24). Normal baseline laboratory blood tests, urine cultures, and ultrasound assessments were seen in all; therefore, none were excluded on the basis of a known pathology. Follow-up telephone interviews, to assess symptom persistence and side effects, were performed at 6 weeks postintervention. The mean follow-up period was 15 months (range: 4-20). INTERVENTION: Visual confirmation of IBU was obtained cystoscopically and 40 mg of triamcinolone was instilled to the inflamed area under direct vision using an open-ended ureteral catheter. OUTCOME MEASUREMENTS: Symptoms resolution was the primary outcome. Repeat cystoscopic assessment +/- triamcinolone instillation was recorded, as was the occurrence of complications. RESULTS AND LIMITATIONS: Seven patients (50%) required at least one further treatment. Overall complete or partial resolution was reported in 12/14 patients (85.7%). No side effects were reported. CONCLUSIONS: This small prospective series demonstrates that intraurethral instillation of triamcinolone seems to be a promising treatment option to alleviate inflammatory symptoms in majority of cases of idiopathic urethritis. Patient Summary: Fourteen boys with inflammation of the urethra, with no identifiable cause, were treated by topically triamcinolone, directly to the inflamed area. We demonstrate an 85.7% complete/partial resolution of symptoms with no side effects seen. PMID- 29023191 TI - Use of Nasogastric Feeding Tubes for Children at Home: A Template for Caregiver Education. AB - There is a lack of knowledge on the part of caregivers who need to place nasogastric (NG) tubes in children for enteral nutrition therapy. This article provides the rationale, best practices, and a template for caregiver education. Canadian and Australian programs have excellent patient education materials. They have shared these step-by-step procedures for healthcare professionals to provide to caregivers to whom they are teaching placement and care of NG tubes. PMID- 29023190 TI - Effector Biology in Focus: A Primer for Computational Prediction and Functional Characterization. AB - Plant-pathogen interactions are controlled by a multilayered immune system, which is activated by pathogen recognition in the host. Pathogens secrete effector molecules to interfere with the immune recognition or signaling network and reprogram cell structure or metabolism. Understanding the effector repertoires of diverse pathogens will contribute to unraveling the molecular mechanism of virulence and developing sustainable disease-control strategies for crops and natural ecosystems. Effector functionality has been investigated extensively in only a small number of pathogen species. However, many more pathogen genomes are becoming available, and much can be learned from a broader view of effector biology in diverse pathosystems. The purpose of this review is to summarize methodology for computational prediction of protein effectors, functional characterization of effector proteins and their targets, and the use of effectors as probes to screen for new sources of host resistance. Although these techniques were generally developed in model pathosystems, many of the approaches are directly applicable for exploration and exploitation of effector biology in pathosystems that are less well studied. We hope to facilitate such exploration, which will broaden understanding of the mechanisms that underpin the biological diversity of plant-pathogen interactions, and maximize the impact of new approaches that leverage effector biology for disease control. PMID- 29023189 TI - Transfer RNA instability as a stress response in Escherichia coli: Rapid dynamics of the tRNA pool as a function of demand. AB - Production of the translation apparatus of E. coli is carefully matched to the demand for protein synthesis posed by a given growth condition. For example, the fraction of RNA polymerases that transcribe rRNA and tRNA drops from 80% during rapid growth to 24% within minutes of a sudden amino acid starvation. We recently reported in Nucleic Acids Research that the tRNA pool is more dynamically regulated than previously thought. In addition to the regulation at the level of synthesis, we found that tRNAs are subject to demand-based regulation at the level of their degradation. In this point-of-view article we address the question of why this phenomenon has not previously been described. We also present data that expands on the mechanism of tRNA degradation, and we discuss the possible implications of tRNA instability for the ability of E. coli to cope with stresses that affect the translation process. PMID- 29023192 TI - A Study on the Macroscopic Morphometry of the Lesion Area on Diabetic Ulcers in Humans Treated with Photodynamic Therapy Using Two Methods of Measurement. AB - BACKGROUND: Diabetes Mellitus is a chronic disease that can lead to lower-limb ulceration. The photodynamic therapy (PDT) is based on light interaction with a photosensitizer capable to promote bacterial death and acceleration of wound healing. OBJECTIVE: This study aims to accomplish a macroscopic morphometry evaluation on diabetic ulcer area in humans that were under PDT. MATERIALS AND METHODS: A clinical study was conducted by convenience sample, experimental, controlled, and blinded, composed of 12 patients of both sexes with diabetic ulcers in lower limbs that were divided into two groups, control (n = 6) and PDT (n = 6). They were all treated with collagenase/chloramphenicol during the experimental period, in which six of them had received PDT with Methylene Blue dye (0.01%) associated with laser therapy (660 nm, 30 mW, 8 sec, 6 J/cm2, beam area of 0.04 mm2), three times per week, totaling 10 sessions. Ulcer areas were analyzed by their nominal area and photographed for analysis through the ImageJ(r) software. Then, the Ulcer Healing Index and the wound area reduction were calculated for both groups. RESULTS: Data from the UHI and wound area reduction parameters show that there is a statistically significant difference (p < 0.05) between the control group and PDT group, with the PDT group showing a greater reduction of the diabetic ulcer area than the control group. In the ImageJ software area analysis, both patient groups presented significant differences (p < 0.05) between pre and post-treatment in relation to lesion reduction area, the PDT being better. CONCLUSIONS: Results show that PDT accelerates the closure of ulcer wounds and to evaluate the wound area, different measurement methods can be used to follow-up the tissue repair process. PMID- 29023193 TI - Distinct transcriptional and processing regulations control miR167a level in tomato during stress. AB - Besides their definite role in plant developmental processes miR167 also serve as mediator of stress response. Although differential expression of miR167 occurs during stresses, the regulatory-mechanism of biogenesis remained elusive. Therefore, using tomato as the model plant we have explored the mechanism of regulation of miR167a expression during stresses. Fungus or virus infections and exposure to cold stress raised the level of miR167a expression. Whereas, salt, drought and heat treatments resulted in the downregulation, indicating different stresses activated alternative mechanisms for miR167a regulation. Interestingly, the relative expression level of precursors in control versus temperature stressed plants differed from the pattern observed in the mature miR167a expression, suggesting that both transcriptional and processing regulation were important for biogenesis. The promoter-regulatory sequence of the major isoform MIR167a harbours several development and stress-related regulatory sites. Accordingly, promoter assays using transient transformation and transgenic tobacco plants proved stress-dependent regulation of the promoter. Further analyses corroborated the role of tomato DREB2A protein in the transcriptional regulation during temperature stress. Finally, in vitro assays established the importance of processing factors in cold-stress dependent efficient processing of MIR167a precursors. These data confirm distinct role of transcriptional and processing machinery in stress-influenced regulation of tomato miR167a biogenesis. PMID- 29023194 TI - Factors That Drive Youth Specialization. AB - BACKGROUND: Specialization in young athletes has been linked to overuse injuries, burnout, and decreased satisfaction. Despite continued opposition from the medical community, epidemiological studies suggest the frequency is increasing. HYPOTHESIS: Extrinsic pressures in addition to individual aspirations drive this national trend in sports specialization. STUDY DESIGN: Descriptive epidemiology study. LEVEL OF EVIDENCE: Level 3. METHODS: A novel instrument assessing the driving factors behind youth specialization was generated by an interdisciplinary team of medical professionals. Surveys were administered to patients and athletes in the department's sports medicine clinic. RESULTS: The survey was completed by 235 athletes between 7 and 18 years of age, with a mean age of 13.8 +/- 3.0 years. Athletes specialized at a mean age of 8.1 years, and 31% of athletes played a single sport while 58% played multiple sports but had a preferred sport. More than 70% of athletes had collegiate or professional ambitions, and 60% played their primary sport for 9 or more months per year, with players who had an injury history more likely to play year-round ( P < 0.01). Approximately one third of players reported being told by a coach not to participate in other sports, with specialized athletes reporting this significantly more often ( P = 0.04). Half of the athletes reported that sports interfered with their academic performance, with older players stating this more frequently ( P < 0.01). CONCLUSION: Young athletes are increasingly specializing in a single sport before starting high school. While intrinsic drive may identify healthy aspirations, extrinsic influences are prevalent in specialized athletes. CLINICAL RELEVANCE: Extrinsic factors contributing to youth specialization were identified and compounded the deleterious sequelae of youth athlete specialization. PMID- 29023195 TI - Depth of Intestinal Wall Infiltration and Clinical Presentation of Deep Infiltrating Endometriosis: Evaluation of 553 Consecutive Cases. AB - INTRODUCTION: Intestinal involvement in endometriosis was first described by Sampson in 1922. The reported incidence ranges between 3% and 37% in patients diagnosed with endometriosis. In literature, there are few studies that correlate the severity of endometriosis (in terms of intestinal infiltration) and its clinical presentation. The aim of this study was to review the correlation between the severity of symptoms, the depth of intestinal wall infiltration, and lymph node involvement in our tertiary referral center. MATERIALS AND METHODS: We retrospectively analyzed 553 patients who had undergone intestinal resection for deep infiltrating endometriosis at our institution (Sacro Cuore Negrar Hospital) between 2004 and 2009. Based on intestinal wall infiltration, we divided patients into three groups (Group A: intestinal infiltration that reaches the muscle layer, Group B: infiltration to the submucosa, and Group C: endometriosis reaches the mucosa). Symptoms, intestinal stenosis, and positive lymph nodes were compared in the three groups with the chi-square test. RESULTS: No statistical correlation was found between symptoms and the intestinal wall infiltrations. The three groups were also compared on the basis of positive visceral lymph nodes and we did find a statistical difference (P = .05) in the lymph node count in the two main groups. CONCLUSION: There seems to be no statistically significant difference in symptoms between patients with different degrees of infiltration. Although visceral lymph node involvement has been occasionally described in literature, we found that it is related to submucosal infiltration. PMID- 29023196 TI - Home Parenteral Nutrition: Vascular Access and Related Complications. AB - Patients with chronic intestinal failure are dependent on parenteral nutrition (PN) to maintain health and preserve life. Maintaining safe vascular access is vital to prevent life-threatening complications such as catheter-related bloodstream infection or central venous occlusion. Dedicated central venous catheters with rigorous catheter care aseptic protocols are vital in obtaining good long-term outcomes that allow continuation of PN over many years. Good catheter care requires an experienced multidisciplinary team using appropriate vascular devices, trained to identify and aggressively treat catheter-related bloodstream infections, catheter occlusions, and catheter-related thrombosis. Consideration must also be given to evolving strategies to prevent recurrent infections, including prophylactic central venous catheter locks. PMID- 29023198 TI - Exploration of trauma, dissociation, maladaptive schemas and auditory hallucinations in a French sample. AB - OBJECTIVES: The main goal of the present study was to explore the associations between several key variables that have been shown to partially mediate the link between specific trauma exposure and auditory hallucinations (AH), that is, maladaptive schemas and dissociation in the general population. METHODS: In total, 425 voluntary participants were recruited from the general population and completed online the Childhood Trauma Questionnaire, the Young schema questionnaire, the Dissociative Experiences Scale, and the Launay-Slade Hallucination Scale. Data were analysed using Partial Least Squares Structural Equation Modelling. RESULTS: Our model showed that: (1) sexual and emotional abuse impact on AH both through the effect of maladaptive schemas and dissociation; (2) physical abuse impact on AH only through the effect of dissociation. More specifically, we found that four maladaptive schemas impact on AH: Abandonment, Vulnerability, Self-sacrifice and Subjugation. CONCLUSIONS: Overall, our findings indicate that specific early maladaptive schemas may play a fundamental role in the association between exposure to trauma and auditory hallucination together with dissociation symptoms in the general population. Consequently, our study suggest considering maladaptive schemas as an important therapeutic target when working with individuals experiencing AH with or without a psychiatry disorder. PMID- 29023199 TI - Responses of low and high compression during recovery after repeated sprint training in well-trained handball players. AB - The aim of the study was to investigate the effects of wearing various levels of compression following repeated and exhausting sprint exercise on variables related to recovery. Twelve well-trained handball players performed three sessions of repeated and exhausting sprint exercise (30 * 30m). Directly after each session the participants wore tights extending from below the hip to the foot with either 0, 10, or 25 mm Hg of compression onto the thigh and calf muscles. 48 h after the training session all participants performed 5 * 30m sprints and counter movement jumps. Before, directly after, 24 h, and 48 h after the training session venous blood samples were drawn for the determination of creatine kinase (CK), urea, C-reactive protein (CRP). At the same time points, subjective ratings of the Acute Recovery and Stress Scale (ARSS) questionnaires were obtained. The results for plasma concentrations of CK and urea showed 'likely' to 'very, very likely' beneficial effects for compression garments exerting 10 mm Hg of compression (p = 0.06-1.0). With regard to sprint and jump performance no differences were evident between 0, 10, and 25 mm Hg (p = 0.07 1.0). In addition, subjective scores from the ARSS did not differ between conditions over time (p > 0.05). We conclude that the application of 10 mm Hg leg compression compared to 0 and 25 mm Hg of compression during 48 h of recovery from repeated and exhausting sprints lowered the plasma concentrations of CK and urea with no improvements in recovery for performance. PMID- 29023197 TI - Mutational landscape of RNA-binding proteins in human cancers. AB - RNA Binding Proteins (RBPs) are a class of post-transcriptional regulatory molecules which are increasingly documented to be dysfunctional in cancer genomes. However, our current understanding of these alterations is limited. Here, we delineate the mutational landscape of ~1300 RBPs in ~6000 cancer genomes. Our analysis revealed that RBPs have an average of ~3 mutations per Mb across 26 cancer types. We identified 281 RBPs to be enriched for mutations (GEMs) in at least one cancer type. GEM RBPs were found to undergo frequent frameshift and inframe deletions as well as missense, nonsense and silent mutations when compared to those that are not enriched for mutations. Functional analysis of these RBPs revealed the enrichment of pathways associated with apoptosis, splicing and translation. Using the OncodriveFM framework, we also identified more than 200 candidate driver RBPs that were found to accumulate functionally impactful mutations in at least one cancer. Expression levels of 15% of these driver RBPs exhibited significant difference, when transcriptome groups with and without deleterious mutations were compared. Functional interaction network of the driver RBPs revealed the enrichment of spliceosomal machinery, suggesting a plausible mechanism for tumorogenesis while network analysis of the protein interactions between RBPs unambiguously revealed the higher degree, betweenness and closeness centrality for driver RBPs compared to non-drivers. Analysis to reveal cancer-specific Ribonucleoprotein (RNP) mutational hotspots showed extensive rewiring even among common drivers between cancer types. Knockdown experiments on pan-cancer drivers such as SF3B1 and PRPF8 in breast cancer cell lines, revealed cancer subtype specific functions like selective stem cell features, indicating a plausible means for RBPs to mediate cancer-specific phenotypes. Hence, this study would form a foundation to uncover the contribution of the mutational spectrum of RBPs in dysregulating the post-transcriptional regulatory networks in different cancer types. PMID- 29023200 TI - Gender Stereotype Activation versus Lexical Semantic Activation: An ERP Study. AB - It is an open question whether social stereotype activation can be distinguished from nonsocial semantic activation. To address this question, gender stereotype activation (GSA) and lexical semantic activation (LSA) were directly compared. EEGs were recorded in 20 participants as they identified the congruence between prime-target word pairs under four different conditions (stereotype congruent, stereotype incongruent, semantic congruent, and semantic incongruent). We found that congruent targets elicited faster and more accurate responses and reduced N400 amplitudes irrespective of priming category types. The N400 congruency effect (i.e., the difference between incongruity and congruity) started earlier and had greater amplitude for GSA than for LSA. Moreover, gender category priming induced a smaller N400 and a larger P600 than lexical category priming. These findings suggest that the brain is not only sensitive to both stereotype and semantic violation in the post-perceptual processing stage but can also differentiate these two information processes. Further, the findings suggest superior processing (i.e., faster and deeper processing) when the words are associated with social category and convey stereotype knowledge. PMID- 29023201 TI - Zebrafish Ride the Danube's Wave for the 10th European Zebrafish Meeting. PMID- 29023202 TI - Transplantation of Zebrafish Cells by Conventional Pneumatic Microinjector. AB - Generating chimeric zebrafish by transplantation is extremely useful for live imaging in developmental, stem cell, and cancer biology, and to answer the questions of how cells acquire, keep, and/or change their fate. However, as it is technically challenging, the use of transplantation approach remains very limited by the zebrafish community. In this study, we show that this cell grafting operation can be easily achieved by using a conventional pneumatic microinjector normally used for microinjections. Compared with previously published protocols, which need additional transplantation apparatus, this alternative transplantation method works well, but needs a simpler experimental setup, and is more accessible to all investigators. PMID- 29023203 TI - Examining Differences in Audience Recall and Reaction Between Mediated Portrayals of Mental Illness as Trivializing Versus Stigmatizing. AB - Researchers have documented the ways in which media stigmatize mental illness. However, media also portray mental illness trivially when diseases are mocked, oversimplified, shown to be less severe than in actuality, or represented as beneficial to an individual. Trivialization of mental illnesses could potentially lead audiences to be less likely to seek help or less likely to support related policy efforts. Therefore, it is important to understand how audiences recall and react to stigmatizing and trivializing mental illness portrayals. An experiment (N = 175) asked participants to recall either a media portrayal where mental illness was stigmatized or a portrayal where it was trivialized. Results suggest that audiences recall certain components of stigmatization and trivialization better than others. And, recollections of trivialization were associated with different patterns of word use than stigmatization. A second experiment (N = 141) found similar patterns when showing participants specific examples of different mental illness portrayals and asking them to immediately recall the content. Overall, these results suggest that theory and conceptual models about the nature and effects of mental illness portrayals could be updated to include both stigmatization and trivialization. PMID- 29023204 TI - Bury Your Gays and Social Media Fan Response: Television, LGBTQ Representation, and Communitarian Ethics. AB - Although visibility has increased, there are still television tropes used that can have potentially harmful effects on LGBTQ persons seeking identification through television characters. This essay explores the representation of women loving women (WLW) on television and how fans respond via social media with regard to their identity and representation. Specifically, by examining the fan culture through a communitarian ethics lens (with an emphasis on duty and mutuality), fans are explored before and after a lesbian character's death and how their responses created a social movement regarding the current television environment's treatment of WLW characters. Media anthropology and virtual ethnographic observations on Twitter and Tumblr were used to answer how fans were responding to WLW representation via social media and how they engaged with communitarian ethics. Implications and criticisms are discussed. PMID- 29023205 TI - The ethno-racial segmentation jobs: The impacts of the occupational stereotypes on hiring decisions. AB - This paper considers both the division of the labor market and the occupational stereotyping as explanatory mechanisms of discrimination in hiring decisions. It hypothesized that recruiters would favor candidates applying for a position that is stereotypically identified with their ethnic category. We solicited 146 recruiters in order to evaluate the hireability of either a native-born or an immigrant candidate, either competent or not competent, for either a prestigious or a low-skill occupation, and to justify their decision in writing. As predicted, both the hireability ratings and the narrative comments produced by recruiters showed that native-born applicants were preferred for prestigious jobs while immigrants tended to be selected more often for low-skill positions.The discussion addresses various issues related to decision-making in recruitment settings. PMID- 29023206 TI - Out with .05, in with Replication and Measurement: Isolating and Working with the Particular Effect Sizes that are Troublesome for Inferential Statistics. AB - It is difficult to obtain adequate power to test a small effect size with a set criterion alpha of 0.05. Probably an inferential test will indicate non statistical significance and not be published. Rarely, statistical significance will be obtained, and an exaggerated effect size calculated and reported. Accepting all inferential probabilities and associated effect sizes could solve exaggeration problems. Graphs, generated through Monte Carlo methods, are presented to illustrate this. The first graph presents effect sizes (Cohen's d) as lines from 1 to 0 with probabilities on the Y axis and the number of measures on the X axis. This graph shows effect sizes of .5 or less should yield non significance with sample sizes below 120 measures. The other graphs show results with as many as 10 small sample size replications. There is a convergence of means with the effect size as sample size increases and measurement accuracy emerges. PMID- 29023207 TI - Sexual Orientation as a Peripheral Cue in Advertising: Effects of Models' Sexual Orientation, Argument Strength, and Involvement on Responses to Magazine Ads. AB - This study examines how sexual orientation of couples featured in magazine advertisements affects heterosexual viewers' responses using the elaboration likelihood model as a framework. A 3 * 2 * 2 * 3 experiment tested effects of sexual orientation, argument strength, involvement, and attitudes toward homosexuality on heterosexuals' attitudes toward the couple, advertisement, brand, and product, purchase intentions, and recall. Results indicate that consumers were accepting of ads with lesbian portrayals. Participants showed more negative attitudes toward gay male portrayals, but attitudes toward heterosexual and lesbian ads were similar. This effect was moderated by participants' attitudes toward homosexuals. Low-involvement consumers showed more negative attitudes toward homosexual portrayals than toward heterosexual portrayals, indicating that sexual orientation may have served as a peripheral cue negatively impacting attitudes toward the couple and ad under low elaboration. These effects were not observed for attitudes toward the brand and product, purchase intentions, or recall. PMID- 29023208 TI - Laboulbeniales parasitic on American small carrion beetles: new species of Corethromyces, Diphymyces, and Rodaucea. AB - Ten new species of Laboulbeniales parasitic on small carrion beetles (Coleoptera, Leiodidae, Cholevinae) from the American continent are described: Corethromyces bernardii on Dissochaetus spp. from Bolivia, Costa Rica, Ecuador, and the USA; Diphymyces anthracinus on Ptomaphagus brevior from the USA; D. blackwelliae on Ptomaphagus giaquintoi from Guatemala; D. costaricensis on Adelopsis sp. from Costa Rica; D. dichromus on Adelopsis marinae from Argentina; D. newtonii on Ptomaphagus fumosus from the USA; D. obesus on Ptomaphagus brevior from the USA; Diphymyces perreaui on Ptomaphagus nevadicus from the USA; D. polycarpus on Paulipalpina pillahuata from Peru; and Rodaucea hermanii on Adelopsis sp. from Costa Rica. The hosts for all 10 species have been retrieved from museum collections (1 was collected in the field as well). The following new combination is proposed: Rodaucea bruchii, bringing the number of species in the recently established genus Rodaucea to three. PMID- 29023209 TI - Age Differences In Emotion Recognition: Task Demands Or Perceptual Dedifferentiation? AB - : Background/Study Context: Older adults (OA) have consistently shown lower accuracy compared with younger adults (YA) when labeling facial expressions of emotion in multiple choice tasks. However, OA do not show lower accuracy when judging psychological attributes from faces in rating tasks. The authors investigated whether the cognitive demands of multiple choice tasks yields an underestimation of OA emotion recognition ability and whether lower scores by OA in emotion recognition tasks are an instance of age-related dedifferentiated face perception. METHODS: Younger and older adults judged the emotions of faces depicting various expressions using (a) a multiple choice task and (b) a rating task with separate scales for each expression. We computed both accuracy scores and an emotion differentiation index, adapted from previous work on neural activation to different stimulus categories. RESULTS: Lower OA performance in emotion recognition do not reflect the cognitive demands of a multiple choice task, since age differences also were shown when assessing emotion expressions on independent rating scales. An index calculating differentiation of the emotion expressions supported the hypothesis that age differences in emotion recognition accuracy may reflect age-related perceptual dedifferentiation. DISCUSSION: Results are consistent with other evidence for perceptual dedifferentiation in OA, including lower OA performance in face recognition tasks, rating faces more similarly to one another on trait dimensions, and less specificity in neural activation to faces. PMID- 29023210 TI - Free to be me: The relationship between the true self, rejection sensitivity, and use of online dating sites. AB - Prior research (Blackhart et al., 2014) found that rejection-sensitive individuals are more likely to use online dating sites. The purpose of the current research was to explain the relationship between rejection sensitivity and online dating site usage. Study 1 examined whether true self mediated the relation between rejection sensitivity and online dating. Study 2 sought to replicate the findings of Study 1 and to examine whether self-disclosure moderated the relationship between true self and online dating in the mediation model. Results replicated those found by Blackhart et al. and also found that true self mediated the relationship between rejection sensitivity and online dating site usage. These findings suggest that rejection-sensitive individuals feel they can more easily represent their "true" selves in online environments, such as online dating sites, which partially explains why they are more likely to engage in online dating. PMID- 29023211 TI - Factors influencing dietary fat intake among black emerging adults. AB - OBJECTIVE: To determine what factors influenced dietary fat intake (DFI) among black emerging adults. PARTICIPANTS: Sample included 251 black emerging adults, ages 18-25 years, living in the US. METHODS: This was a nonexperimental cross sectional study based on self-report data. RESULTS: The sample had high DFI. Factors related to DFI were gender (rpb = -.22, p < .001), perceived barriers for healthy eating (r = .32, p < .001), and perceived self-efficacy (r = -.33, p < .001). These variables were also significant predictors for DFI. Gender was significantly related to DFI (b = -5.894, p = .000). Religious commitment moderated the effect of stress on DFI. CONCLUSIONS: Gender, perceived barriers for healthy eating, and perceived self-efficacy were significant predictors for DFI. Religious commitment influenced the relationship of perceived stress and DFI. These findings may lead to interventions designed to reduce DFI and cardiovascular risks among black emerging adults. PMID- 29023212 TI - Pre-entry Characteristics, Perceived Social Support, Adjustment and Academic Achievement in First-Year Spanish University Students: A Path Model. AB - Transition to university is a multifactorial process to which scarce consideration has been given in Spain, despite this being one of the countries with the highest rates of academic failure and attrition within the European Union. The present study proposes an empirical model for predicting Spanish students' academic achievement at university by considering pre-entry characteristics, perceived social support and adaptation to university, in a sample of 300 traditional first-year university students. The findings of the path analysis showed that pre-university achievement and academic and personal emotional adjustment were direct predictors of academic achievement. Furthermore, gender, parents' education and family support were indirect predictors of academic achievement, mediated by pre-university grades and adjustment to university. The current findings supporting evidence that academic achievement in first-year Spanish students is the cumulative effect of pre-entry characteristics and process variables, key factors that should be taken into account in designing intervention strategies involving families and that establish stronger links between research findings and university policies. PMID- 29023214 TI - Reply to K. Lisy et al. PMID- 29023213 TI - Nivolumab Versus Docetaxel in Previously Treated Patients With Advanced Non-Small Cell Lung Cancer: Two-Year Outcomes From Two Randomized, Open-Label, Phase III Trials (CheckMate 017 and CheckMate 057). AB - Purpose Nivolumab, a programmed death-1 inhibitor, prolonged overall survival compared with docetaxel in two independent phase III studies in previously treated patients with advanced squamous (CheckMate 017; ClinicalTrials.gov identifier: NCT01642004) or nonsquamous (CheckMate 057; ClinicalTrials.gov identifier: NCT01673867) non-small-cell lung cancer (NSCLC). We report updated results, including a pooled analysis of the two studies. Methods Patients with stage IIIB/IV squamous (N = 272) or nonsquamous (N = 582) NSCLC and disease progression during or after prior platinum-based chemotherapy were randomly assigned 1:1 to nivolumab (3 mg/kg every 2 weeks) or docetaxel (75 mg/m2 every 3 weeks). Minimum follow-up for survival was 24.2 months. Results Two-year overall survival rates with nivolumab versus docetaxel were 23% (95% CI, 16% to 30%) versus 8% (95% CI, 4% to 13%) in squamous NSCLC and 29% (95% CI, 24% to 34%) versus 16% (95% CI, 12% to 20%) in nonsquamous NSCLC; relative reductions in the risk of death with nivolumab versus docetaxel remained similar to those reported in the primary analyses. Durable responses were observed with nivolumab; 10 (37%) of 27 confirmed responders with squamous NSCLC and 19 (34%) of 56 with nonsquamous NSCLC had ongoing responses after 2 years' minimum follow-up. No patient in either docetaxel group had an ongoing response. In the pooled analysis, the relative reduction in the risk of death with nivolumab versus docetaxel was 28% (hazard ratio, 0.72; 95% CI, 0.62 to 0.84), and rates of treatment-related adverse events were lower with nivolumab than with docetaxel (any grade, 68% v 88%; grade 3 to 4, 10% v 55%). Conclusion Nivolumab provides long-term clinical benefit and a favorable tolerability profile compared with docetaxel in previously treated patients with advanced NSCLC. PMID- 29023216 TI - Provider Roles in Survivorship Care: Moving Beyond Surveys of Patient Preference. PMID- 29023215 TI - Cost-Effectiveness Analysis of Monthly Zoledronic Acid, Zoledronic Acid Every 3 Months, and Monthly Denosumab in Women With Breast Cancer and Skeletal Metastases: CALGB 70604 (Alliance). AB - Purpose Skeletal-related events (SREs) such as pathologic fracture, spinal cord compression, or the necessity for radiation or surgery to bone metastasis cause considerable morbidity, decrements in quality of life, and costs to the health care system. The results of a recent large randomized trial (Cancer and Leukemia Group B/Alliance for Clinical Trials in Oncology [CALGB/Alliance 70604]) showed that zoledronic acid (ZA) every 3 months was noninferior to monthly ZA in reducing the risks of SREs. We sought to determine the cost-effectiveness (CE) of monthly ZA, ZA every 3 months, and monthly denosumab in women with breast cancer and skeletal metastases. Methods Using a Markov model, costs per SRE avoided were calculated for the three treatments. Sensitivity analyses were performed where denosumab SRE probabilities were assumed to be 50%, 75%, and 90% lower than the ZA SRE probabilities. Quality-adjusted life-years were also calculated. The analysis was from the US payer perspective. Results The mean costs of the denosumab treatment strategy are nine-fold higher than generic ZA every 3 months. Quality-adjusted life-years were virtually identical in all the three treatment arms; hence, the optimal treatment would be ZA every 3 months because it was the least costly treatment. The sensitivity analyses showed that relative to ZA every 3 months, the incremental costs per mean SRE avoided for denosumab ranged from $162,918 to $347,655. Conclusion ZA every 3 months was more CE in reducing the risks of SRE than monthly denosumab. This analysis was one of the first to incorporate the costs of generic ZA and one of the first independent CE analyses not sponsored by either Novartis or Amgen, the makers of ZA and denosumab, respectively. ZA every 3 months is the more CE option and more reasonable alternative to monthly denosumab. PMID- 29023217 TI - Visual impairment by multiple vascular embolization with hydroxyapatite particles. AB - We demonstrate a case of ocular impairment caused by a hydroxyapatite filler injection and review the prior literature on clinical presentations. A healthy woman, who received a hydroxyapatite filler injection into the glabella for nose augmentation suddenly had symptoms of nausea, diplopia, visual loss in the left eye, and impaired consciousness. Her left eye showed paresis of the inferior branch of the oculomotor nerve, conjunctival injection, cell infiltration in the anterior chamber, and multiple white spots in the nasal fundus. Purpura was detected in the area from the glabella to the left forehead. An orbital computed tomography (CT) scan demonstrated high-density deposits along vessels in the left medial orbit and forehead. Although her consciousness stabilized after a few days, the vision in her left eye deteriorated due to corneal edema and both hypopyon and hyphema in the anterior chamber, and the skin from the glabella to the left forehead developed necrosis. Multiple plaques were observed within the conjunctival and scleral vessels. After 2 months, diplopia and visual loss issues were mostly resolved. A histological examination of the conjunctiva specimen showed multiple foreign bodies plugged vessels that could be dissolved by decalcification. Recently, the number of complications by cosmetic filler injections has increased. The migrated hydroxyapatite particles in vessels cause multiple vascular emboli that can lead to various symptoms. PMID- 29023220 TI - Photobiomodulation for Achilles Tendinopathy. PMID- 29023219 TI - Predictors of Outcome in Patients with Pediatric Intracerebral Hemorrhage: Development and Validation of a Modified Score. AB - Purpose To propose and validate a modified pediatric intracerebral hemorrhage (PICH) (mPICH) score and to compare its association with functional outcome to that of the original PICH score. Materials and Methods Data from prospectively included patients were retrospectively analyzed. Consecutive patients with nontraumatic PICH who had undergone clinical follow-up were included. The study population was divided into a development cohort (2008-2012, n = 100) and a validation cohort (2013-2016, n = 43). An mPICH score was developed after variables associated with poor outcome were identified at multivariate analysis (King's Outcome Scale for Childhood Head Injury score < 5a) in the development cohort. The accuracy of the score for prediction of poor outcome was evaluated (sensitivity, specificity). Discrimination and calibration of associations between the mPICH score and poor outcome cohorts were assessed (C statistics, Hosmer-Lemeshow test). Results The mPICH score assessed as follows: brain herniation, four points; altered mental status, three points; hydrocephalus, two points; infratentorial PICH, two points; intraventricular hemorrhage, one point; PICH volume greater than 2% of total brain volume, one point. An mPICH score greater than 5 was associated with severe disability or worse, with sensitivity of 97% (95% confidence interval [CI]: 83%, 100%) and specificity of 61% (95% CI: 49%, 73%). The C statistic was 0.81 (95% CI: 0.73, 0.89). In the validation cohort, sensitivity and specificity were 95.2% (95% CI: 76%, 99%) and 77% (95% CI: 55%, 92%), respectively. There was no significant difference between the observed and predicted risks of poor outcome (P = .46). Conclusion An mPICH score was developed as a simple clinical and imaging grading scale for acute prognosis in patients with PICH. (c) RSNA, 2017. PMID- 29023218 TI - Out-of-Hospital Pediatric Patient Safety Events: Results of the CSI Chart Review. AB - OBJECTIVE: Studies of adult hospital patients have identified medical errors as a significant cause of morbidity and mortality. Little is known about the frequency and nature of pediatric patient safety events in the out-of-hospital setting. We sought to quantify pediatric patient safety events in EMS and identify patient, call, and care characteristics associated with potentially severe events. METHODS: As part of the Children's Safety Initiative -EMS, expert panels independently reviewed charts of pediatric critical ambulance transports in a metropolitan area over a three-year period. Regression models were used to identify factors associated with increased risk of potentially severe safety events. Patient safety events were categorized as: Unintended injury; Near miss; Suboptimal action; Error; or Management complication ("UNSEMs") and their severity and potential preventability were assessed. RESULTS: Overall, 265 of 378 (70.1%) unique charts contained at least one UNSEM, including 146 (32.8%) errors and 199 (44.7%) suboptimal actions. Sixty-one UNSEMs were categorized as potentially severe (23.3% of UNSEMs) and nearly half (45.3%) were rated entirely preventable. Two factors were associated with heightened risk for a severe UNSEM: (1) age 29 days to 11 months (OR 3.3, 95% CI 1.25-8.68); (2) cases requiring resuscitation (OR 3.1, 95% CI 1.16-8.28). Severe UNSEMs were disproportionately higher among cardiopulmonary arrests (8.5% of cases, 34.4% of severe UNSEMs). CONCLUSIONS: During high-risk out-of-hospital care of pediatric patients, safety events are common, potentially severe, and largely preventable. Infants and those requiring resuscitation are important areas of focus to reduce out-of-hospital pediatric patient safety events. PMID- 29023222 TI - Erratum. PMID- 29023221 TI - Evaluation of the Effect of Phototherapy in Patients with Mandibular Fracture on Mandibular Dynamics, Pain, Edema, and Bite Force: A Pilot Study. AB - OBJECTIVE: The aim of this study was to evaluate the effect of phototherapy on bite force, facial swelling, mandibular movements, and pain in patients having undergone surgical treatment for mandibular fractures. BACKGROUND: These are among the predominant types of facial fractures, and treatment involving surgical fixation with titanium plates is one of the most common procedures in oral maxillofacial surgery. Phototherapy has been used to accelerate the muscle healing process and significantly improves muscle regeneration by inducing the formation of new muscle fibers. METHODS: The patients were divided into two groups: Group 1-active phototherapy, and Group 2-sham phototherapy. Both groups underwent the surgical procedure by the same surgeon using the same surgical technique. Dosimetric parameters are wavelength, 660 nm; power, 108 mW; radiant energy, 21.6 J; fluency, 21.6 J/cm2; radiance, 38197 mW/cm2; exposure time, 200 sec per point, 10 points bilaterally. Photobiomodulation was performed in 15 sessions. RESULTS: The primary variable was bite force measured with a gnathodynamometer and the secondary variables were facial swelling, mandibular movements (measured with digital calipers), and pain. The Student's t-test was used to determine intergroup differences. CONCLUSIONS: The findings suggest improvements in the laser group in comparison with the sham group with regard to mandibular dynamics, a reduction in postoperative facial swelling, a reduction in pain, and an increase in bite force. PMID- 29023223 TI - Point Prevalence and Patterns of Mental Health Comorbidity Among People Accessing Australia's First Older Adult-Specific Alcohol and Other Drug Treatment Service. AB - OBJECTIVE: There are good data regarding the prevalence and patterns of dual diagnosis among the general population; however, data regarding the older adult cohort are limited. We aimed to extend the knowledge of the point prevalence and patterns of dual diagnosis among older adults and the impact of dual diagnosis on the utilization of alcohol and other drug treatment services. METHOD: A 12-month medical chart audit of clients discharged from an Australian older adult-specific alcohol and other drug treatment service was performed. Measures included the Alcohol Use Disorders Identification Test-Consumption, the Drug Use Disorders Identification Test-Consumption, the Kessler 10, and the Modified MINI Screen. Additional data collected included mental health diagnoses, number of session types, and treatment outcomes. RESULTS: There were 79 (n = 45, 57% male) medical charts audited, with a mean age of 65.9 years (SD = 5.8). There were 68 (89%) clients having at least one comorbid mental illness. Clients with a dual diagnosis were younger (p = .011) than those without. Some comorbid mental health conditions were associated with additional service utilization (p < .05). Clients with personality disorders required more telephone calls and outreach services (p < .05). The number of mental health diagnoses was associated with additional treatment sessions (p < .05). CONCLUSIONS: Further research with a larger sample size of older adults seeking age-specific alcohol and other drug treatment services is required. Older adult-specific alcohol and other drug treatment services need to allow for longer episodes of care for clients with certain dual diagnoses and a focus on reducing anxiety to increase treatment retention. PMID- 29023225 TI - "Transformation Tuesday": Temporal context and post valence influence the provision of social support on social media. AB - Social network sites (SNSs) such as Facebook have become integral in the development and maintenance of interpersonal relationships. Users of SNSs seek social support and validation, often using posts that illustrate how they have changed over time. The purpose of the present research is to examine how the valence and temporal context of an SNS post affect the likelihood of other users providing social support. Participants viewed hypothetical SNS posts and reported their intentions to provide social support to the users. Results revealed that participants were more likely to provide social support for posts that were positive and included temporal context (i.e., depicted improvement over time; Study 1). Furthermore, this research suggests that visual representations of change over time are needed to elicit social support (Study 2). Results are discussed in terms of their practical implications for SNS users and theoretical implications for the literature on social support and social media. PMID- 29023224 TI - Zebrafish: A Premier Vertebrate Model for Biomedical Research in Indian Scenario. AB - The zebrafish (Danio rerio) is a versatile model organism that has been used in biomedical research for several decades to study a wide range of biological phenomena. There are many technical advantages of using zebrafish over other vertebrate models. They are readily available, hardy, easy, and inexpensive to maintain in the laboratory, have a short life cycle, and have excellent fecundity. Due to its optical clarity and reproducible capabilities, it has become one of the predominant models of human genetic diseases. Zebrafish research has made rapid strides in the United States and Europe, but in India the field is at an early stage and many researchers still remain unaware of the full research potential of this tiny fish. The zebrafish model system was introduced into India in the early 2000s. Up to now, more than 200 scientific referred articles have been published by Indian researchers. This review gives an overview of the current state of knowledge for zebrafish research in India, with the aim of promoting wider utilization of zebrafish for high level biological studies. PMID- 29023226 TI - Contrasting Evolutionary Paths Among Indo-Pacific Pomacentrus Species Promoted by Extensive Pericentric Inversions and Genome Organization of Repetitive Sequences. AB - Pomacentrus (damselfishes) is one of the most characteristic groups of fishes in the Indo-Pacific coral reef. Its 77 described species exhibit a complex taxonomy with cryptic lineages across their extensive distribution. Periods of evolutionary divergences between them are very variable, and the cytogenetic events that followed their evolutionary diversification are largely unknown. In this respect, analyses of chromosomal divergence, within a phylogenetic perspective, are particularly informative regarding karyoevolutionary trends. As such, we conducted conventional cytogenetic and cytogenomic analyses in four Pomacentrus species (Pomacentrus similis, Pomacentrus auriventris, Pomacentrus moluccensis, and Pomacentrus cuneatus), through the mapping of repetitive DNA classes and transposable elements, including 18S rDNA, 5S rDNA, (CA)15, (GA)15, (CAA)10, Rex6, and U2 snDNA as markers. P. auriventris and P. similis, belonging to the Pomacentrus coelestis complex, have indistinguishable karyotypes (2n = 48; NF = 48), with a peculiar syntenic organization of ribosomal genes. On the other hand, P. moluccensis and P. cuneatus, belonging to another clade, exhibit very different karyotypes (2n = 48, NF = 86 and 92, respectively), with a large number of bi-armed chromosomes, where multiple pericentric inversions played a significant role in their karyotype organization. In this sense, different chromosomal pathways followed the phyletic diversification in the Pomacentrus genus, making possible the characterization of two well-contrasting species groups regarding their karyotype features. Despite this, pericentric inversions act as an effective postzygotic barrier in many organisms, which appear to be also the case for P. moluccensis and P. cuneatus; the extensive chromosomal similarities in the two species of P. coelestis complex suggest minor participation of chromosomal postzygotic barriers in the phyletic diversification of these species. PMID- 29023227 TI - Humoral immune responses to select marine bacteria in loggerhead, Caretta caretta, and Kemp's ridley, Lepidochelys kempii, sea turtles from the south eastern United States. AB - Serum from Kemp's ridley and loggerhead sea turtles was collected in summers of 2011, 2012, and 2013. Serum IgY recognition of lysate proteins from nine bacteria species and whole bacteria-specific IgY titers to these pathogens were quantified. Serum and purified IgY recognized proteins of all bacteria, with protein recognition in some species more pronounced than others. Circulating IgY titers against V. vulnificus, V. anguillarum, E. rhusiopathiae, and B. vesicularis changed over the years in Kemp's ridley turtles, while titers IgY against V. vulnificus, E. coli, V. parahaemolyticus, B. vesicularis, and M. marinum were different in loggerhead turtles. Serum lysozyme activity was constant for loggerhead turtles over the 3 years, while activity in Kemp's ridleys were lower in 2012 than 2013. Blood PCV, glucose levels, and serum protein levels were comparable to healthy turtles in previous studies, therefore, this study provides baseline information on antibody responses in healthy, wild turtles. Received 25 May 2017 accepted 09 Oct 2017 revised 15 Sep 2017. PMID- 29023228 TI - Preventing Chronic Disease: Progress and Achievement of 2017 Priorities. PMID- 29023229 TI - Shaping Future Generations of Public Health Researchers: Preventing Chronic Disease's Student Research Paper Contest. PMID- 29023231 TI - Marketing Strategies to Encourage Rural Residents of High-Obesity Counties to Buy Fruits and Vegetables in Grocery Stores. AB - INTRODUCTION: Obesity rates in Appalachia are among the highest in the United States, and knowledge of upstream approaches to decrease prevalence among this vulnerable population is limited. The primary aim of this study was to examine the association between healthy, diet-based, social marketing interventions in grocery stores and frequency of fruit and vegetable intake. METHODS: A social marketing campaign was conducted among 17 grocery stores (N = 240 participant surveys) over 4 months in 5 rural Kentucky counties. Interventions included providing food samples, recipe cards, and promotional discounts on fruits and vegetables and moving high-calorie foods to side aisles. RESULTS: Most survey participants reported that recipe cards influenced their desire to purchase ingredients as well as fruits and vegetables in general. Results indicated a significant association between the influence of recipe cards and frequency of fruit and vegetable consumption. CONCLUSION: Small-scale interventions in grocery stores influenced purchasing choices among Appalachian residents. Working with various store managers and food venues in rural high-obesity communities is a promising way to encourage purchasing of fruits and vegetables. PMID- 29023230 TI - A Diabetic Retinopathy Screening Tool for Low-Income Adults in Mexico. AB - INTRODUCTION: A national diabetic retinopathy screening program does not exist in Mexico as of 2017. Our objective was to develop a screening tool based on a predictive model for early detection of diabetic retinopathy in a low-income population. METHODS: We analyzed biochemical, clinical, anthropometric, and sociodemographic information from 1,000 adults with diabetes in low-income communities in Mexico (from 11,468 adults recruited in 2014-2016). A comprehensive ophthalmologic evaluation was performed. We developed the screening tool through the following stages: 1) development of a theoretical predictive model, 2) performance assessment and validation of the model using cross validation and the area under the receiver operating characteristic curve (AUC ROC), and 3) optimization of cut points for the classification of diabetic retinopathy. We identified points along the AUC ROC that minimized the misclassification cost function and considered various scenarios of misclassification costs and diabetic retinopathy prevalence. RESULTS: Time since diabetes diagnosis, high blood glucose levels, systolic hypertension, and physical inactivity were considered risk factors in our screening tool. The mean AUC ROC of our model was 0.780 (validation data set). The optimized cut point that best represented our study population (z = -0.640) had a sensitivity of 82.9% and a specificity of 61.9%. CONCLUSION: We developed a low-cost and easy-to apply screening tool to detect people at high risk of diabetic retinopathy in Mexico. Although classification performance of our tool was acceptable (AUC ROC > 0.75), error rates (precision) depend on false-negative and false-positive rates. Therefore, confirmatory assessment of all cases is mandatory. PMID- 29023232 TI - Early Onset Obesity and Risk of Metabolic Syndrome Among Chilean Adolescents. AB - INTRODUCTION: Obesity and metabolic syndrome (MetS) indicators have increased globally among the pediatric population. MetS indicators in the young elevate their risk of cardiovascular disease and metabolic disorders later in life. This study examined early onset obesity as a risk factor for MetS risk in adolescence. METHODS: A cohort of Chilean participants (N = 673) followed from infancy was assessed at age 5 years and in adolescence (mean age, 16.8 y). Adiposity was measured at both time points; blood pressure and fasting blood samples were assessed in adolescence only. Early onset obesity was defined as a World Health Organization z score of 2 standard deviations (SDs) or more for body mass index (BMI) at age 5 years. We used linear regression to examine the association between early onset obesity and adolescent MetS risk z score, adjusting for covariates. RESULTS: Eighteen percent of participants had early onset obesity, and 50% of these remained obese in adolescence. Mean MetS risk z score in adolescence was significantly higher among those with early onset obesity than among those without (1.0; SD, 0.8 vs 0.2; SD, 0.8 [P < .001]). In the multivariable model, early onset obesity independently contributed to a higher MetS risk score in adolescence (beta = 0.27, P < .001), controlling for obesity status at adolescence and sex, and explained 39% of the variance in MetS risk. CONCLUSION: Early onset obesity as young as age 5 years relates to higher MetS risk. PMID- 29023233 TI - Companeros: High School Students Mentor Middle School Students to Address Obesity Among Hispanic Adolescents. AB - INTRODUCTION: Promotoras, Hispanic community health workers, are frequently employed to promote health behavioral change with culturally bound Hispanic lifestyle behaviors. Peer health mentors have been used in schools to promote healthy nutrition and physical activity behaviors among students. This study investigates the efficacy of combining these 2 approaches by training high school health mentors, called companeros, to engage Hispanic middle school students in a school-based obesity intervention as a strategy to promote and sustain reductions in standardized body mass index (zBMI). METHODS: High school companeros were trained to participate in a 6-month obesity program alongside middle school students in Houston, Texas. Middle school students were randomized to participate in the program either with companeros (n = 94) or without companeros (n = 95). The intervention was conducted from 2013 through 2016 in 3 cohorts of students, 1 each school year. Students were followed for 12 months. The primary outcome was zBMI, which was analyzed at baseline, 6 months, and 12 months. RESULTS: Significant differences were found between conditions across time (F = 4.58, P = .01). After the 6-month intervention, students in the condition with companeros had a larger decrease in zBMI (F = 6.94, P = .01) than students in the condition without companeros. Furthermore, students who received the intervention with companeros showed greater sustained results at 12 months (F = 7.65, P = .01). CONCLUSION: Using high school companeros in an obesity intervention for Hispanic middle school students could be effective in promoting and maintaining reductions in zBMI. PMID- 29023234 TI - Using Geographical Convergence of Obesity, Cardiovascular Disease, and Type 2 Diabetes at the Neighborhood Level to Inform Policy and Practice. AB - INTRODUCTION: Chronic diseases are increasing across the world. Examination of local geographic variation in chronic disease patterns can enable policy makers to identify inequalities in health outcomes and tailor effective interventions to communities at higher risk. Our study aimed to determine the geographic variation of obesity, cardiovascular disease (CVD), and type 2 diabetes, using general practice clinical data. Further objectives included identifying regions of significantly high and low clusters of these conditions and assessing their association with sociodemographic characteristics. METHODS: A cross-sectional approach was used to determine the prevalence of obesity, CVD, and type 2 diabetes in western Adelaide, Australia. The Getis-Ord Gi* method was used to identify significant hot spots of the conditions. Additionally, we used the Pearson correlation test to determine the association between disease clusters and risk factors, including socioeconomic status (SES), smoking history, and alcohol consumption. RESULTS: The spatial distribution of obesity, CVD, and type 2 diabetes varied across communities. Hot spots of these conditions converged in 3 locations across western Adelaide. An inverse relationship was observed between area-level prevalence of CVD, obesity, and type 2 diabetes with SES. CONCLUSION: Identification of significant disease clusters can help policy makers to target prevention strategies at the right people, in the right location. The approach taken in our study can be applied to identify clusters of other chronic diseases across the world, wherever researchers have access to clinical data. PMID- 29023235 TI - A Generally Efficient Targeted Minimum Loss Based Estimator based on the Highly Adaptive Lasso. AB - Suppose we observe n $n$ independent and identically distributed observations of a finite dimensional bounded random variable. This article is concerned with the construction of an efficient targeted minimum loss-based estimator (TMLE) of a pathwise differentiable target parameter of the data distribution based on a realistic statistical model. The only smoothness condition we will enforce on the statistical model is that the nuisance parameters of the data distribution that are needed to evaluate the canonical gradient of the pathwise derivative of the target parameter are multivariate real valued cadlag functions (right-continuous and left-hand limits, (G. Neuhaus. On weak convergence of stochastic processes with multidimensional time parameter. Ann Stat 1971;42:1285-1295.) and have a finite supremum and (sectional) variation norm. Each nuisance parameter is defined as a minimizer of the expectation of a loss function over over all functions it its parameter space. For each nuisance parameter, we propose a new minimum loss based estimator that minimizes the loss-specific empirical risk over the functions in its parameter space under the additional constraint that the variation norm of the function is bounded by a set constant. The constant is selected with cross-validation. We show such an MLE can be represented as the minimizer of the empirical risk over linear combinations of indicator basis functions under the constraint that the sum of the absolute value of the coefficients is bounded by the constant: i.e., the variation norm corresponds with this L1 $L_1$-norm of the vector of coefficients. We will refer to this estimator as the highly adaptive Lasso (HAL)-estimator. We prove that for all models the HAL-estimator converges to the true nuisance parameter value at a rate that is faster than n-1/4 $n^{-1/4}$ w.r.t. square-root of the loss-based dissimilarity. We also show that if this HAL-estimator is included in the library of an ensemble super-learner, then the super-learner will at minimal achieve the rate of convergence of the HAL, but, by previous results, it will actually be asymptotically equivalent with the oracle (i.e., in some sense best) estimator in the library. Subsequently, we establish that a one-step TMLE using such a super learner as initial estimator for each of the nuisance parameters is asymptotically efficient at any data generating distribution in the model, under weak structural conditions on the target parameter mapping and model and a strong positivity assumption (e.g., the canonical gradient is uniformly bounded). We demonstrate our general theorem by constructing such a one-step TMLE of the average causal effect in a nonparametric model, and establishing that it is asymptotically efficient. PMID- 29023236 TI - End-to-end workflow for finite element analysis of tumor treating fields in glioblastomas. AB - Tumor Treating Fields (TTFields) therapy is an approved modality of treatment for glioblastoma. Patient anatomy-based finite element analysis (FEA) has the potential to reveal not only how these fields affect tumor control but also how to improve efficacy. While the automated tools for segmentation speed up the generation of FEA models, multi-step manual corrections are required, including removal of disconnected voxels, incorporation of unsegmented structures and the addition of 36 electrodes plus gel layers matching the TTFields transducers. Existing approaches are also not scalable for the high throughput analysis of large patient volumes. A semi-automated workflow was developed to prepare FEA models for TTFields mapping in the human brain. Magnetic resonance imaging (MRI) pre-processing, segmentation, electrode and gel placement, and post-processing were all automated. The material properties of each tissue were applied to their corresponding mask in silico using COMSOL Multiphysics (COMSOL, Burlington, MA, USA). The fidelity of the segmentations with and without post-processing was compared against the full semi-automated segmentation workflow approach using Dice coefficient analysis. The average relative differences for the electric fields generated by COMSOL were calculated in addition to observed differences in electric field-volume histograms. Furthermore, the mesh file formats in MPHTXT and NASTRAN were also compared using the differences in the electric field-volume histogram. The Dice coefficient was less for auto-segmentation without versus auto-segmentation with post-processing, indicating convergence on a manually corrected model. An existent but marginal relative difference of electric field maps from models with manual correction versus those without was identified, and a clear advantage of using the NASTRAN mesh file format was found. The software and workflow outlined in this article may be used to accelerate the investigation of TTFields in glioblastoma patients by facilitating the creation of FEA models derived from patient MRI datasets. PMID- 29023237 TI - Corneal Tissue From Dry Eye Donors Leads to Enhanced Graft Rejection. AB - PURPOSE: To assess the effect of dry eye disease (DED) in graft donors on dendritic cell (DC) maturation, host T-cell sensitization, and corneal allograft rejection. METHODS: Corneas of control (healthy donor) and DED mice (C57BL/6) were transplanted onto fully allogeneic naive BALB/c recipients (n = 10 mice/group). Long-term allograft survival was evaluated for 8 weeks. Corneas and draining lymph nodes (dLNs) were harvested at posttransplantation day 14 (n = 5 mice/group). The frequencies of MHCII CD11c DCs in the donor corneas and host dLNs and the frequencies of interferon (IFN)-gamma and IL-17 CD4 T cells and Foxp3 expression by Tregs in host dLNs were investigated using flow cytometry. The enzyme-linked immunospot assay was used to assess host T-cell allosensitization through direct and indirect pathways (n = 3/group). RESULTS: Recipients of DED donor corneas showed significantly reduced graft survival (10%) compared with control mice (50% survival, P = 0.022), and had significantly increased frequencies of mature DCs in the grafted cornea (DED donor 44.0% +/- 0.36% vs. healthy donor 35.4 +/- 0.5%; P < 0.0001) and host dLNs (DED donor 25.1% +/- 0.66% vs. healthy donor 13.7% +/- 1.6%; P = 0.005). Frequencies of IFN-gamma and IL-17 T cells were increased in the dLNs of recipients of DED corneas, whereas the expression (mean fluorescence intensity) of Foxp3 in Tregs was decreased significantly in these mice (DED donor 6004 +/- 193 vs. healthy donor 6806 +/- 81; P = 0.0002). Enzyme-linked immunospot analysis showed that the direct pathway of allosensitization was significantly amplified in recipients of grafts with DED (P = 0.0146). CONCLUSIONS: Our results indicate that DED in the donor is a significant risk factor for subsequent corneal allograft rejection. PMID- 29023238 TI - Severe Phenotype of Keratitis-Ichthyosis-Deafness Syndrome With Presumed Ocular Surface Squamous Neoplasia. AB - PURPOSE: The aim of this study was to describe a case of severe keratitis ichthyosis-deafness (KID) syndrome with ocular surface squamous neoplasia. METHODS: The affected patient underwent complete ocular and systemic examinations. The molecular studies included polymerase chain reaction amplification and automated DNA sequencing of the complete gap junction beta-2 (GJB2) gene coding sequence. RESULTS: A 30-year-old man presented with generalized erythro-hyperkeratosis and deafness and complaints of decreased visual acuity, tearing, and photophobia. Ophthalmic examination showed corneal erosion, vascularization, and a gray gelatinous lesion partially covering the right cornea, suggestive of squamous neoplasia. The clinical features were characteristic of KID syndrome. This diagnosis was confirmed with a DNA analysis showing the pathogenic variant p.D50N in the GJB2 gene. Presumed squamous neoplasia was treated with topical interferon alpha2b. CONCLUSIONS: KID syndrome is a very rare disease that has been reported with an incremental incidence of squamous cell carcinoma of the mucous membranes and skin (12%-15%). Here, we presented a case of severe systemic KID syndrome with ocular surface squamous neoplasia. PMID- 29023239 TI - Re: Generalizing Study Results: A Potential Outcomes Perspective. PMID- 29023240 TI - Correspondence Between Results and Aims of Funding Support in EPIDEMIOLOGY Articles. PMID- 29023241 TI - Estimating Causal Effects of Treatment in a Randomized Trial When Some Participants Only Partially Adhere. AB - The intention-to-treat analysis evaluates the causal effect of treatment assignment in a randomized controlled trial; however, participants do not always adhere to assigned treatment and the intention-to-treat effect may differ from the effect of treatment receipt. Although more recent adherence-based methods assess a well-defined causal effect of receiving treatment, adherence is assumed to be dichotomized as all or none. This approach can lack precision in the real world because adherence is a complex and heterogeneous phenomenon. In this article, we illustrate a simple method that provides estimates of bounds on the causal effect of full adherence to treatment in the presence of partial adherence. We first define three types of partial adherence (delayed, partial dose, posttreatment). We then use casual diagrams to show that categorizing partial adherence as nonadherence in a sensitivity analysis can lead to a violation of the exclusion restriction principle. Finally, we apply recently published sensitivity analyses related to principal stratification that allow for creating bound estimates around the causal effect of treatment in the presence of partial adherence. PMID- 29023242 TI - The Authors Respond. PMID- 29023244 TI - Integrating Training in Quality Improvement and Health Equity in Graduate Medical Education: Two Curricula for the Price of One. AB - A recent call to address health care disparities has come from the Accreditation Council for Graduate Medical Education's (ACGME's) Clinical Learning Environment Review (CLER) program. The CLER program aspires that faculty and residents will identify the disparities among the patient populations they serve and engage in quality improvement (QI) activities designed to address them. In this Perspective, the authors provide a framework for integrating QI and health equity principles in graduate medical education to meet these ACGME expectations. The authors illustrate their four-step framework by describing a faculty development workshop that provides strategies and tools for embedding equity into existing QI educational efforts and using QI methods to address equity challenges. Using examples, the authors outline how medical educators can begin to integrate QI and equity initiatives to address health care disparities and involve their residents/fellows in the process. In addition, the authors emphasize the importance of applying an equity lens to QI interventions and of recognizing that QI initiatives will have different impacts on outcomes depending on the patient population. The authors conclude by discussing the need for institutional leadership to build capacity and training to improve data collection and reporting of quality metrics by demographic variables; provide resources to disseminate lessons learned; support faculty development to teach and mentor trainees through equity-related QI work; and prioritize time in the curriculum for learners to participate in equity improvement activities. PMID- 29023245 TI - Education in Pediatrics Across the Continuum (EPAC): First Steps Toward Realizing the Dream of Competency-Based Education. AB - The Education in Pediatrics Across the Continuum (EPAC) Study Group is developing the first competency-based, time-variable progression from undergraduate medical education (UME) to graduate medical education (GME) in the history of medical education in the United States. EPAC, an innovation project sponsored by the Association of American Medical Colleges and supported by the Josiah Macy Jr. Foundation, was developed through a collaboration between five medical schools and multiple professional organizations with an interest in undergraduate and graduate medical education. The planning and implementation process demanded cooperatively addressing practical barriers such as education requirements for licensure and developing approaches to learner assessment that provided meaningful information about competency. Each participating school now has at least three cohorts of learners participating, and the program is transitioning its first cohort of students from UME to GME based on achievement of predetermined competencies that allow this transition. Members of the first cohort of learners in this program have begun their pediatric residency training at different times beginning in late 2016, confirming the feasibility of competency-based advancement from UME to GME in pediatrics. Although there is still much to learn about the outcomes of EPAC learners' professional development in residency training and beyond, EPAC has defined an operational approach to a different path through medical school and into residency training, based on the attainment of competence. PMID- 29023243 TI - Pediatric Auditory Brainstem Implantation: Surgical, Electrophysiologic, and Behavioral Outcomes. AB - OBJECTIVES: The objectives of this study were to demonstrate the safety of auditory brainstem implant (ABI) surgery and document the subsequent development of auditory and spoken language skills in children without neurofibromatosis type II (NFII). DESIGN: A prospective, single-subject observational study of ABI in children without NFII was undertaken at the University of North Carolina at Chapel Hill. Five children were enrolled under an investigational device exemption sponsored by the investigators. Over 3 years, patient demographics, medical/surgical findings, complications, device mapping, electrophysiologic measures, audiologic outcomes, and speech and language measures were collected. RESULTS: Five children without NFII have received ABIs to date without permanent medical sequelae, although 2 children required treatment after surgery for temporary complications. All children wear their device daily, and the benefits of sound awareness have developed slowly. Intra-and postoperative electrophysiologic measures augmented surgical placement and device programming. The slow development of audition skills precipitated limited changes in speech production but had little impact on growth in spoken language. CONCLUSIONS: ABI surgery is safe in young children without NFII. Benefits from device use develop slowly and include sound awareness and the use of pattern and timing aspects of sound. These skills may augment progress in speech production but progress in language development is dependent upon visual communication. Further monitoring of this cohort is needed to better delineate the benefits of this intervention in this patient population. PMID- 29023246 TI - Effect of various durations of smoking cessation on postoperative outcomes: A retrospective cohort analysis. AB - BACKGROUND: Preoperative smoking cessation is commonly advised in an effort to improve postoperative outcomes. However, it remains unclear for how long smoking cessation is necessary, and even whether a brief preoperative period of abstinence is helpful and well tolerated. OBJECTIVE: We evaluated associations between various periods of preoperative smoking cessation and major morbidity and death. DESIGN: Retrospective cohort analysis. SETTING: Adults who had noncardiac surgery at the Cleveland Clinic Main Campus between May 2007 and December 2013. PATIENTS: A total of 37 511 patients whose smoking history was identified from a preoperative Health Quest questionnaire. Of these patients, 26 269 (70%) were former smokers and 11 242 (30%) were current smokers. Of the current smokers, 9482 (84%) were propensity matched with 9482 former smokers (36%). We excluded patients with American Society of Anesthesiologists' physical status exceeding four, patients who did not have general anaesthesia, and patients with missing outcomes and/or covariables. When multiple procedures were performed within the study period, only the first operation for each patient was included in the analysis. MAIN OUTCOME MEASURES: The relationship between smoking cessation and in-hospital morbidity/mortality. RESULTS: The incidence of the primary composite of in-hospital morbidity/mortality was 6.9% (656/9482) for all former smokers; the incidence was 7.8% (152/1951) for patients who stopped smoking less than 1 year before surgery, 6.3% (118/1977) for 1 to 5 years, 7.2% (115/1596) for 5 to 10 years and 6.9% (271/3457) for more than 10 years. CONCLUSION: Smoking cessation was associated with reduced in-hospital morbidity and mortality which was independent of cessation interval. PMID- 29023247 TI - miR-449a: a potential therapeutic agent for cancer. AB - MicroRNAs (miRNAs) have been reported to be associated with cancer progression and carcinogenesis. They are small, highly conserved, noncoding RNA molecules consisting of 19-25 nucleotides. By binding to complementary binding sites within the 3'-untranslated region of target mRNAs, miRNAs inhibit the translation of mRNAs or promote their degradation. miRNAs play critical roles in cancer initiation and development by functioning either as oncogenes or as tumor suppressors. Similarly, several studies have shown that miRNAs are involved in regulating various biological processes, including apoptosis, proliferation, cellular differentiation, signal transduction, and carcinogenesis. Among miRNAs, one that may be of particular interest in cancer biology is miR-449a, which has been reported to inhibit tumor growth, invasion, and metastasis, and to promote apoptosis and differentiation through the transforming growth factor-beta activated kinase 1, NOTCH, nuclear factor-kappaB/P65/vascular endothelial growth factor, retinoblastoma-E2F, mitogen-activated protein kinase signaling pathways, WNT-beta-catenin signaling, tumor protein P53, and androgen receptor signaling pathways. The miR-449 cluster is located in the second intron of CDC20B on chromosome 5q11.2, a region that has been identified as a susceptibility locus in cancer, and the abnormal expression of miR-449a may be related to the occurrence and development of tumors. As one example, miR-449a has been reported to be involved in the development of carcinoma and may be a potential prognostic indicator. On the basis of the putative pathogenetic relationships between cancer and miR-449a, we consider that miR-449a has the potential to serve as a therapeutic agent for the treatment of some types of cancer. In this review, the role of miR-449a in tumorigenesis and its mechanism of action are explored. Furthermore, its potential as a therapeutic agent in cancer treatment is considered. PMID- 29023248 TI - Anticancer effect of acid ceramidase inhibitor ceranib-2 in human breast cancer cell lines MCF-7, MDA MB-231 by the activation of SAPK/JNK, p38 MAPK apoptotic pathways, inhibition of the Akt pathway, downregulation of ERalpha. AB - Acid ceramidase is the key enzyme of the ceramide metabolic pathway, which plays a vital role in regulating ceramide - sphingosine-1-phosphate rheostat. Ceramide acts as a proapoptotic molecule, but its metabolite sphingosine-1-phosphate, in contrast, signals for cell proliferation, cell survival, and angiogenesis. Acid ceramidase is highly upregulated in breast tumors and treatment with an acid ceramidase inhibitor, ceranib-2, significantly induced apoptosis in human breast cancer cell lines. However, the mechanisms underlying the induction of apoptosis remain ambiguous to date. Hence, in the present study, we have explored ceranib-2 mediated apoptotic signaling pathways in human breast cancer cell lines. MCF-7 and MDA MB-231 cells were treated with IC50 doses of ceranib-2 and tamoxifen. Nuclear changes showed the apoptotic effect of ceranib-2 in both the cell lines. Loss in the mitochondrial membrane potential was observed only in ceranib-2 treated MCF-7 cells. Ceranib-2 activated intrinsic and extrinsic apoptotic pathways in MCF-7 cells, but only the extrinsic apoptotic pathway was activated in MDA MB-231 cells. Further, ceranib-2 induced apoptosis by activating SAPK/JNK (stress-activated protein kinase/c-Jun N-terminal kinase), p38 MAPK (mitogen activated protein kinase) apoptotic pathways and by inhibiting the Akt (antiapoptotic) pathway in both the cell lines. Most importantly, ERalpha (estrogen receptor-alpha) expression was highly downregulated after ceranib-2 treatment and a docking study predicted the highest binding affinity of ceranib-2 than tamoxifen with ERalpha in MCF-7 cells. Hence, ceranib-2 may have potential as a chemotherapeutic drug of breast cancer. PMID- 29023249 TI - Priming With 1-Hz Repetitive Transcranial Magnetic Stimulation Over Contralesional Leg Motor Cortex Does Not Increase the Rate of Regaining Ambulation Within 3 Months of Stroke: A Randomized Controlled Trial. AB - BACKGROUND: The potential benefits of repetitive transcranial magnetic stimulation (rTMS), applied either alone or as a combination treatment, on recovery of lower limbs after stroke have been insufficiently studied. OBJECTIVE: The aim of the study was to evaluate the effect of priming with 1-Hz repetitive transcranial magnetic stimulation over contralesional leg motor area with a double-cone coil before physical therapy on regaining ambulation. METHODS: Thirty eight subacute stroke patients with significant leg disabilities were randomly assigned into the experimental group or control group to receive a 15-min real or sham 1-Hz repetitive transcranial magnetic stimulation, respectively, over the contralesional motor cortex representing the quadriceps muscle followed by 45-min physical therapy for 15 sessions for 3 wks. Functional measures, motor evoked potentials, and quality of life were assessed. RESULTS: There was no significant difference between experimental group and control group regarding the recovery in ambulation, balance, motor functions, and activity of daily living. No significant difference was found in other functional measures and the quality of life. Only the control group displayed significantly increased cortical excitability of the contralesional hemisphere after the intervention. CONCLUSIONS: The present study found that insufficient evidence that contralesional priming with 1-Hz repetitive transcranial magnetic stimulation improves ambulatory and other motor functions among patients with a severe leg dysfunction in subacute stroke. PMID- 29023250 TI - Biomechanical Determinants of Right Ventricular Failure in Pulmonary Hypertension. AB - Pulmonary hypertension (PH) is a disease characterized by progressive adverse remodeling of the distal pulmonary arteries, resulting in elevated pulmonary vascular resistance and load pressure on the right ventricle (RV), ultimately leading to RV failure. Invasive hemodynamic testing is the gold standard for diagnosing PH and guiding patient therapy. We hypothesized that lumped-parameter and biventricular finite-element (FE) modeling may lead to noninvasive predictions of both PH-related hemodynamic and biomechanical parameters that induce PH. We created patient-specific biventricular FE models that characterize the biomechanical response of the heart and coupled them with a lumped-parameter model that represents the systemic and pulmonic circulation. Simulations were calibrated by adjusting the pulmonary vascular resistance and myocardial contractility parameters through matching imaging data of ventricular chambers. Linear regression analysis demonstrated that the lumped-derived RV cardiac index (CI) was in good agreement with catheterization measurements collected from 10 patients with PH (R = 0.82; p < 0.001). Biventricular FE analysis revealed a paradoxical leftward shift of the interventricular septum, and this correlated with invasive measurements of pulmonary vascular resistances (R = 0.70; p = 0.048) as found by Pearson's coefficient. A significant difference was noted for RV myocardial fiber stress in healthy control patients (4.5 +/- 0.7 kPa) compared with that of patients with PH at either rest (30.1 +/- 12.1 kPa; p = 0.005) or simulated exercise conditions (69.6 +/- 24.8 kPa; p < 0.001), thus suggesting adverse RV remodeling. This approach may become a useful and versatile tool for noninvasively assessing RV impairment induced by PH and realistically predicting ventricular mechanics and interactions for an improved management of patients with PH. PMID- 29023251 TI - Programmatic Evaluation of an Algorithm for Intensified Tuberculosis Case Finding and Isoniazid Preventive Therapy for People Living With HIV in Thailand and Vietnam. AB - BACKGROUND: Tuberculosis (TB) screening affords clinicians the opportunity to diagnose or exclude TB disease and initiate isoniazid preventive therapy (IPT) for people living with HIV (PLHIV). METHODS: We implemented an algorithm to diagnose or rule out TB among PLHIV in 11 HIV clinics in Thailand and Vietnam. We assessed algorithm yield and uptake of IPT and factors associated with TB disease among PLHIV. RESULTS: A total of 1448 PLHIV not yet on antiretroviral therapy (ART) were enrolled and screened for TB. Overall, 634 (44%) screened positive and 119 (8%) were diagnosed with TB; of these, 40% (48/119) were diagnosed by a positive culture following a negative sputum smear microscopy. In total, 55% of those eligible (263/477) started on IPT and of those, 75% (196/263) completed therapy. The prevalence of TB disease we observed in this study was 8.2% (8218 per 100,000 persons): 46 and 25 times the prevalence of TB in the general population in Thailand and Vietnam, respectively. Several factors were independently associated with TB disease including being underweight [aOR (95% CI): 2.3 (1.2 to 2.6)] and using injection drugs [aOR (95% CI): 2.9 (1.3 to 6.3)]. CONCLUSIONS: The high yield of TB disease diagnosed among PLHIV screened with the algorithm, and higher burden among PLHIV who inject drugs, underscores the need for innovative, tailored approaches to TB screening and prevention. As countries adopt test-and-start for antiretroviral therapy, TB screening, sensitive TB diagnostics, and IPT should be included in differentiated-care models for HIV to improve diagnosis and prevention of TB among PLHIV. PMID- 29023253 TI - Looking Back and Looking Forward Through the Lens of the Nursing Professional Development: Scope and Standards of Practice, 3rd Edition. AB - This final column in the Nursing Professional Development (NPD) Scope and Standards department provides five exemplars of incorporation of the scope and standards into NPD practice and ends with a call to action for all NPD practitioners. PMID- 29023252 TI - Partner Notification for Youth Living With HIV in 14 Cities in the United States. AB - BACKGROUND: Identifying factors associated with partner notification among youth living with HIV is critical for effective HIV prevention and treatment strategies. METHODS: A total of 924 male and female behaviorally infected youth aged 13-24 across 14 U.S. cities completed an audio computer-assisted self interview including questions about demographics and experiences with patient- and provider-referral partner notification. RESULTS: The majority of participants self-identified as male (82.5%), Black/non-Hispanic (70.1%), and Hispanic/Latino (18.2%). Most males (93.4%) reported engaging in male-to-male sexual contact. Over three-quarters (77.6%) reported that all or some of their partners were contacted, while 22.4% indicated that none were contacted regarding potential HIV exposure. Most (52.4%) reported that only one person talked to them about notifying partners including the HIV tester (36.5%) followed by their health care provider/doctor (27.6%). Less than a fifth (18.3%) were themselves notified of their own exposure to HIV. Using multivariable logistic regression, 3 factors were associated with successful partner notification: (1) when more than one person talked to participants about partner notification (AOR = 1.87, 1.33-2.62); (2) if they themselves had been notified of their own HIV exposure (AOR = 1.83, 1.13-2.95); and (3) if their education included some college or technical school versus less than high school (AOR = 1.72, 1.04-2.85). CONCLUSIONS: Partner notification among youth living with HIV is unsuccessful at least 22.4% of the time, although minimal criteria for partner services are being met almost universally. Partner notification might benefit from enhanced guidelines that call for both HIV testers and HIV care providers to discuss this important strategy with HIV-positive youth. PMID- 29023254 TI - The Lived Experience of Gynecologic Cancer Survivors in Taiwan. AB - BACKGROUND: Although it is now possible to achieve permanent remission in a large percentage of gynecologic cancer (GC) cases, many GC patients in remission experience side effects or complications that influence their physical function and family relationships. Compared with other types of cancer patients, survivors of GC face greater challenges in terms of physical and psychological adaptations, and many of these do not receive sufficient assistance. An in-depth understanding of the lived experiences and demands of GC survivors is key to constructing comprehensive related healthcare services. PURPOSE: The aim of this study was to understand the lived experience of GC survivors in Taiwan to help their return to a healthy life. METHODS: This was a phenomenological study. Twenty-three survivors of GC participated in semistructured interviews that were held in a private environment. The transcripts were based on synchronous recordings from the interviews. Giorgi's phenomenology analysis was adopted for data analysis. RESULTS: Three themes with six subthemes were extracted from the data, including (a) the inner struggle of living with cancer and recurrence: repeatedly exploring the causes of cancer and treatment and facing a fear of cancer recurrence, (b) the interpretation and adjustment to cancer treatment: filled with fluctuating physical and mental distress and working to adopt a different perspective, and (c) the long passage of finding a desirable lifestyle: adjusting to long-term coexistence with side effects and realizing the strength of society, body, and mind. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: The journey of rehabilitation for GC survivors is very long. The participants in this study faced different respective challenges during the diagnosis, treatment, and adjustment phases. Conventional disease-oriented medical care cannot satisfy the requirements of cancer patients because of patient-decentralized services. Our results indicate that GC survivors face diverse problems, both physically and mentally. Healthcare professionals should work to facilitate the psychological adjustment of cancer survivors and provide timely professional advice in combination with social resources. These results may serve as a reference for cancer care professionals who are navigating healthcare services. PMID- 29023255 TI - Adolescent Perceptions of Peer Responses to Diabetes Self-Management: A Qualitative Study. AB - BACKGROUND: Type 1 diabetes (T1D) is more prevalent in adolescents than in adults, and the self-management of insulin-dependent diabetes is complex. T1D requires injections of insulin, self-management of blood testing, regular physical activity, and diet monitoring, which are challenging for growing and developing adolescents. Adolescents are often more concerned with how they are perceived by their peers than how they perceive themselves. Positive peer responses influence the self-care management of adolescents with T1D in school settings. By contrast, negative peer responses and avoidance behaviors threaten to negatively affect the health outcomes of adolescents with T1D. Evidence indicates that peer influence is crucial to the successful self-management of diabetes in adolescents. However, very few studies have investigated the effect of peer influence on adolescents with T1D. PURPOSE: This article describes how adolescents with T1D perceive the responses of their peers to their diabetes self management in school settings. METHODS: Ten 12- to 17-year-old adolescents with diabetes were recruited from a pediatric endocrinology clinic at a university hospital in Taiwan. Audio-recorded interview data were transcribed verbatim and reviewed for accuracy. A thematic analysis approach was used to analyze the narrative content of semistructured interviews with participants. The rigor of the data collection and analysis was emphasized. RESULTS: Analysis of peer responses to the diabetes care practices of the participants revealed six themes: knowledge seeking, curiosity, enthusiasm, empathy, fearfulness, and isolation and bullying. Subthemes were categorized to illustrate how adolescents with T1D balance the challenge of diabetes self-care regimens and normal peer interactions. They were coping with the requirements of their T1D regimen and hoping to determine the perceptions of their peers toward this regimen and themselves. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: Understanding the perception of peer identity for adolescents with T1D provides information for diabetes education and assists school nurses to facilitate successful T1D management in adolescents. PMID- 29023256 TI - The Boreds. PMID- 29023258 TI - Commentary to LTE Fetterolf and Koob. PMID- 29023257 TI - Impact of Abdominal Lipectomy on Post-Sleeve Gastrectomy Surgery Weight Loss. AB - BACKGROUND: Abdominal lipectomy after bariatric surgery is recommended because of residual excess skin resulting in difficulty with maintaining hygiene, recurrent infections, and functional impairment, interfering with daily activities. There is a dearth of literature examining weight loss outcomes in patients undergoing abdominal lipectomy post sleeve gastrectomy (SG). The purpose of this study was to examine whether post-SG patients who received abdominal lipectomy achieved greater percent excess weight loss (%EWL) than post-SG patients who did not receive abdominal lipectomy. METHODS: Retrospective study of patients who underwent minimally invasive SG at the University of Illinois Hospital and Health Sciences System from March 2008 to June 2015 was conducted. The cohort was divided into 2 groups: patients who underwent abdominal lipectomy after SG (PS SG) and patients who underwent SG alone (SG). Demographics, comorbidities, and %EWL were examined. RESULTS: Twenty-nine patients were included in the PS-SG group versus 287 patients in the SG group. Significant differences were found in %EWL at 24 (P < 0.0001), 36 (P < 0.005), and more than 36 months (P < 0.005) follow-up between groups, with a greater %EWL in patients in the PS-SG group versus the SG group. CONCLUSIONS: This preliminary study revealed that patients in the PS-SG group achieved greater %EWL than patients with SG alone. Although larger studies are needed, this study supports using abdominal lipectomy as an adjunctive procedure to assist with long-term weight loss as part of the overall treatment of bariatric surgery patients. PMID- 29023259 TI - Personal and Professional Characteristics of U.S. Dual-Boarded Critical Care Cardiologists in 2015. AB - OBJECTIVES: Evaluate the characteristics of U.S. physicians who are board certified in cardiology and critical care medicine ("dual-boarded cardiologists"). DESIGN: Retrospective cross-sectional study using a comprehensive database of licensed U.S. physicians linked to Medicare claims. SETTING: The United States. SUBJECTS: Dual-boarded cardiologists. MEASUREMENTS AND MAIN RESULTS: We used a comprehensive physician database to identify all physicians who were board certified in cardiology and critical care medicine before July 2015. We assessed physicians' characteristics and compared dual boarded cardiologists with and without active board certification in critical care medicine and estimated the maximum proportion of 2014 Medicare Cardiac ICU admissions treated by dual-boarded cardiologists. Among 473 dual-boarded cardiologists, 16 (3.4%) were women; 468 (99%) and 85 (18%) maintained active board certification in cardiology and critical care medicine, respectively. Overall, 98 dual-boarded cardiologists (21%) submitted 1,215 total claims for critical care services in 2014. Compared to dual-boarded cardiologists without active board certification in critical care medicine, those with active certification had more publications (median publications: 6.5 vs 3.0; p = 0.002), were more likely to be professors (22.3% vs 9.5%; p = 0.003), and were more likely to bill Medicare for critical care services (29% vs 17.8%; p = 0.002). We estimated that no more than 0.47% of all 2014 Medicare Cardiac ICU admissions were treated by a dual-boarded cardiologist. CONCLUSIONS: Dual-boarded cardiologists appear to deliver a small proportion of all Cardiac ICU services received by Medicare beneficiaries. Optimizing the modern Cardiac ICU workforce will require greater efforts to promote and support the training of dual-boarded cardiologists. PMID- 29023260 TI - Dysphagia in Mechanically Ventilated ICU Patients (DYnAMICS): A Prospective Observational Trial. AB - OBJECTIVES: Swallowing disorders may be associated with adverse clinical outcomes in patients following invasive mechanical ventilation. We investigated the incidence of dysphagia, its time course, and association with clinically relevant outcomes in extubated critically ill patients. DESIGN: Prospective observational trial with systematic dysphagia screening and follow-up until 90 days or death. SETTINGS: ICU of a tertiary care academic center. PATIENTS: One thousand three hundred four admissions of mixed adult ICU patients (median age, 66.0 yr [interquartile range, 54.0-74.0]; Acute Physiology and Chronic Health Evaluation II score, 19.0 [interquartile range, 14.0-24.0]) were screened for postextubation dysphagia. Primary ICU admissions (n = 933) were analyzed and followed up until 90 days or death. Patients from an independent academic center served as confirmatory cohort (n = 220). INTERVENTIONS: Bedside screening for dysphagia was performed within 3 hours after extubation by trained ICU nurses. Positive screening triggered confirmatory specialist bedside swallowing examinations and follow-up until hospital discharge. MEASUREMENTS AND MAIN RESULTS: Dysphagia screening was positive in 12.4% (n = 116/933) after extubation (18.3% of emergency and 4.9% of elective patients) and confirmed by specialists within 24 hours from positive screening in 87.3% (n = 96/110, n = 6 missing data). The dysphagia incidence at ICU discharge was 10.3% (n = 96/933) of which 60.4% (n = 58/96) remained positive until hospital discharge. Days on feeding tube, length of mechanical ventilation and ICU/hospital stay, and hospital mortality were higher in patients with dysphagia (all p < 0.001). The univariate hazard ratio for 90-day mortality for dysphagia was 3.74 (95% CI, 2.01-6.95; p < 0.001). After adjustment for disease severity and length of mechanical ventilation, dysphagia remained an independent predictor for 28-day and 90-day mortality (excess 90-d mortality 9.2%). CONCLUSIONS: Dysphagia after extubation was common in ICU patients, sustained until hospital discharge in the majority of affected patients, and was an independent predictor of death. Dysphagia after mechanical ventilation may be an overlooked problem. Studies on underlying causes and therapeutic interventions seem warranted. PMID- 29023262 TI - Psychometric Properties and Factor Structure of a Long and Shortened Version of the Cognitive and Behavioural Responses Questionnaire. AB - OBJECTIVE: Symptoms of chronic fatigue syndrome (CFS) can be perpetuated by cognitive and behavioral responses to the illness. We aimed to determine the factor structure, reliability, and validity of the 40-item Cognitive and Behavioural Responses Questionnaire (CBRQ) using data gathered from CFS patients. We also propose a short-version CBRQ for greater clinical utility. METHODS: The psychometric analysis was performed on data sets drawn from two sources: a clinical service for CFS patients (n = 576) and the PACE randomized controlled trial of CFS treatments (n = 640). An exploratory factor analysis was conducted on the clinical data set and a confirmatory factor analysis was performed on the randomized controlled trial data set. Using these results, a short version of the CBRQ was proposed. Reliability, metric invariance across age and sex, and construct validity were assessed. RESULTS: The exploratory factor analysis (relative chi = 2.52, root mean square error of approximation = 0.051, comparative fit index = 0.964, Taylor-Lewis Index = 0.942) and confirmatory factor analysis (relative chi = 4.029, root mean square error of approximation = 0.069, comparative fit index = 0.901, Taylor-Lewis Index = 0.892) revealed that eight-factor models fitted the data well. Satisfactory Cronbach's alpha values were obtained for the final subscales (>=0.76). The shortened CBRQ was obtained by removing items that cross-loaded onto other factors and/or were the lowest loading items in each factor. The shortened CBRQ contained 18 items that had high factor loadings, good face validity, and reliability (Cronbach's alpha = 0.67 0.88). CONCLUSIONS: The CBRQs, long and short versions, are reliable and valid scales for measuring cognitive and behavioral responses of patients with CFS. Further research is needed to examine the utility of the CBRQ in other long-term conditions. PMID- 29023261 TI - Prevention of Ventilator-Associated Pneumonia: The Multimodal Approach of the Spanish ICU "Pneumonia Zero" Program. AB - OBJECTIVES: The "Pneumonia Zero" project is a nationwide multimodal intervention based on the simultaneous implementation of a comprehensive evidence-based bundle measures to prevent ventilator-associated pneumonia in critically ill patients admitted to the ICU. DESIGN: Prospective, interventional, and multicenter study. SETTING: A total of 181 ICUs throughout Spain. PATIENTS: All patients admitted for more than 24 hours to the participating ICUs between April 1, 2011, and December 31, 2012. INTERVENTION: Ten ventilator-associated pneumonia prevention measures were implemented (seven were mandatory and three highly recommended). The database of the National ICU-Acquired Infections Surveillance Study (Estudio Nacional de Vigilancia de Infecciones Nosocomiales [ENVIN]) was used for data collection. Ventilator-associated pneumonia rate was expressed as incidence density per 1,000 ventilator days. Ventilator-associated pneumonia rates from the incorporation of the ICUs to the project, every 3 months, were compared with data of the ENVIN registry (April-June 2010) as the baseline period. Ventilator associated pneumonia rates were adjusted by characteristics of the hospital, including size, type (public or private), and teaching (postgraduate) or university-affiliated (undergraduate) status. MEASUREMENTS AND MAIN RESULTS: The 181 participating ICUs accounted for 75% of all ICUs in Spain. In a total of 171,237 ICU admissions, an artificial airway was present on 505,802 days (50.0% of days of stay in the ICU). A total of 3,474 ventilator-associated pneumonia episodes were diagnosed in 3,186 patients. The adjusted ventilator-associated pneumonia incidence density rate decreased from 9.83 (95% CI, 8.42-11.48) per 1,000 ventilator days in the baseline period to 4.34 (95% CI, 3.22-5.84) after 19 21 months of participation. CONCLUSIONS: Implementation of the bundle measures included in the "Pneumonia Zero" project resulted in a significant reduction of more than 50% of the incidence of ventilator-associated pneumonia in Spanish ICUs. This reduction was sustained 21 months after implementation. PMID- 29023263 TI - MULTIMODAL IMAGING ADDS NEW INSIGHTS INTO ACUTE SYPHILITIC POSTERIOR PLACOID CHORIORETINITIS. AB - PURPOSE: Acute syphilitic posterior placoid chorioretinitis (ASPPC) is an uncommon manifestation of ocular syphilis with distinct clinical features. We describe new multimodal imaging findings in a patient with ASPPC. METHODS: Observational case report with multimodal imaging. RESULTS: A 44-year-old woman presented with 5 days of decreased vision in her right eye. Visual acuity was counting fingers in her right eye and 20/20 in her left eye. Funduscopic examination of the right eye showed a yellow placoid macular lesion with extension beyond the equator, which was encircled by an annular ring of outer retinal whitening. Ultra-widefield fundus autofluorescence demonstrated hyperautofluorescence corresponding to the placoid lesion. Examination of the left eye appeared unremarkable, but ultra-widefield fundus autofluorescence showed an area of hyperautofluorescence located superonasal to the optic nerve. Optical coherence tomography of the right eye demonstrated subretinal fluid and overlying disruption of the ellipsoid zone. Fluorescein angiography demonstrated early hypofluorescent and hyperfluorescent spots and late staining within the placoid lesion. Optical coherence tomography angiography showed several areas of decreased flow signal within the placoid lesion at the level of the choriocapillaris. Laboratory testing revealed a rapid plasma reagin titer of 1:1,024. Two months after treatment with intravenous penicillin G, visual acuity had improved to 20/25 in her right eye, and optical coherence tomography showed partial restoration of the ellipsoid zone. The annular ring resolved with near normalization of fundus autofluorescence and optical coherence tomography angiography demonstrated resolution of flow. CONCLUSION: Multimodal imaging provides further insight into the pathogenesis of ASPPC. Ultra-widefield fundus autofluorescence may show evidence of ellipsoid zone disruption in areas that clinically appear normal. Flow voids within the choriocapillaris in ASPPC appear to resolve with appropriate treatment, a finding that suggests a transient disruption of choriocapillaris flow in ASPPC. PMID- 29023264 TI - Survival trends among patients with metastatic melanoma in the pretargeted and the post-targeted era: a US population-based study. AB - In 2011, ipilimumab was approved by the US Food and Drug Administration (FDA) for metastatic melanoma. Since its approval, numerous targeted therapies have been approved by the FDA. Population-based studies assessing the survival benefit from these agents are lacking. We therefore carried out this study to compare the 1 year, 2-year, and median overall survival (OS) among metastatic melanoma patients in pretargeted and post-targeted eras. This is a retrospective study that utilized the Surveillance, Epidemiology, and End Results (SEER-18) database, version 8.3.4 (22 March 2017). The patient groups were defined as the pretargeted era (2004-2010) and the post-targeted era (2011-2014) as ipilimumab was approved by the FDA in 2011. The database comprised of 5471 patients (3314 in the pretargeted era and 2157 in the post-targeted era). OS in the post-targeted era was found to be significantly better compared with the pretargeted era by Kaplan Meier curve (1-year OS: 38.9 vs. 36.8%, 2-year OS: 28.3 vs. 23.5%, and median survival: 8 vs. 7 months, P=0.001 by the log-rank test). The survival was significantly better in the post-targeted era compared with the pretargeted era on multivariate analysis using a Cox proportional hazard model after adjusting for age, sex, race, and metasectomy status (adjusted hazard ratio of 0.889, 95% CI: of 0.832-0.951, P=0.001). There is significant survival benefit in metastatic melanoma patients since the introduction of immune checkpoint-blocking agents. PMID- 29023265 TI - Radial head resection and hemi-interposition arthroplasty in patients with multiple hereditary exostoses: description of a new surgical technique. AB - Multiple hereditary exostoses (MHE) are a rare disorder characterized by the growth of bony protrusions. Elbow involvement is found in a considerable number of patients and varies from the presence of a simple osteochondroma to severe forearm deformities and radial head dislocation. Patients encounter a variety of symptoms, for example, pain, functional impairment, and cosmetic concerns. Several types of surgical procedures, therefore, can be offered, ranging from excision of symptomatic osteochondromas to challenging reconstructions. In this paper, we will discuss the essential basics of visualizing, planning, and treatment options of forearm deformities in MHE. In more detail, we will describe our current surgical technique as a salvage procedure for Masada type II forearm deformities in patients with MHE. PMID- 29023266 TI - Novel ZBTB24 Mutation Associated with Immunodeficiency, Centromere Instability, and Facial Anomalies Type-2 Syndrome Identified in a Patient with Very Early Onset Inflammatory Bowel Disease. AB - BACKGROUND: Very early onset inflammatory bowel disease, diagnosed in children <=5 years old, can be the initial presentation of some primary immunodeficiencies. METHODS: In this study, we describe a 17-month-old boy with recurrent infections, growth failure, facial anomalies, and inflammatory bowel disease. Immune evaluation, whole-exome sequencing, karyotyping, and methylation array were performed to evaluate the child's constellation of symptoms and examination findings. RESULTS: Whole-exome sequencing revealed that the child was homozygous for a novel variant in ZBTB24, the gene associated with immunodeficiency, centromere instability, and facial anomalies type-2 syndrome. CONCLUSION: This describes the first case of inflammatory bowel disease associated with immunodeficiency, centromere instability, and facial anomalies type-2 syndrome in a child with a novel disease-causing mutation in ZBTB24 found on whole-exome sequencing. PMID- 29023267 TI - Enhanced TH17 Responses in Patients with IL10 Receptor Deficiency and Infantile onset IBD. AB - BACKGROUND: IL10 receptor (IL10R) deficiency causes severe infantile-onset inflammatory bowel disease. Intact IL10R-dependent signals have been shown to be important for innate and adaptive immune cell functions in mice. We have previously reported a key role of IL10 in the generation and function of human anti-inflammatory macrophages. Independent of innate immune cell defects, the aim of the current study was to determine the role of IL10R signaling in regulating human CD4 T-cell function. METHODS: Peripheral blood mononuclear cells and intestinal biopsies cells were collected from IL10/IL10R-deficient patients and controls. Frequencies of CD4 T-cell subsets, naive T-cell proliferation, regulatory T cell (Treg)-mediated suppression, and Treg and TH17 generation were determined by flow cytometry. Transcriptional profiling was performed by NanoString and quantitative real-time polymerase chain reaction. RNA in situ hybridization was used to determine the quantities of various transcripts in intestinal mucosa. RESULTS: Analysis of 16 IL10- and IL10R-deficient patients demonstrated similar frequencies of peripheral blood and intestinal Tregs, compared with control subjects. In addition, in vitro Treg suppression of CD4 T cell proliferation and generation of Treg were not dependent on IL10R signaling. However, IL10R-deficient T naive cells exhibited higher proliferative capacity, a strong TH17 signature, and an increase in polarization toward TH17 cells, compared with controls. Moreover, the frequency of TH17 cells was increased in the colon and ileum of IL10R-deficient patients. Finally, we show that stimulation of IL10R-deficient Tregs in the presence of IL1beta leads to enhanced production of IL17A. CONCLUSIONS: IL10R signaling regulates TH17 polarization and T-cell proliferation in humans but is not required for the generation and in vitro suppression of Tregs. Therapies targeting the TH17 axis might be beneficial for IL10- and IL10R-deficient patients as a bridge to allogeneic hematopoietic stem cell transplantation. PMID- 29023268 TI - Surgical Simulation Training Reduces Intraoperative Cataract Surgery Complications Among Residents. AB - INTRODUCTION: This retrospective consecutive case series examined whether training on a surgical simulator reduces intraoperative complication rates among novice ophthalmology residents learning cataract surgery. METHODS: Beginning July 2014, training on the Eyesi simulator became mandatory for novice postgraduate year 3 ophthalmology residents before live cataract surgery at our institution. Complication rates of the 11 simulator-trained residents (study group) were compared with their immediate 11 simulator-naive predecessors (comparison group). Only straightforward cataract cases (according to standardized preoperative criteria) where postgraduate year 3 residents served as the primary surgeon were included. Complication data were obtained from Morbidity and Mortality records and compared using Fisher exact test. A survey was administered to the residents to gauge the perceived utility of simulation training. RESULTS: The simulator trained group (n = 501 cataract cases) and the simulator-naive comparison group (n = 454 cases) were analyzed. The complication rate in the simulator group was 2.4% compared with 5.1% in the comparison group (P = 0.037, Fisher exact test). Both the mean posterior capsule tear rate and vitreous prolapse rate in the simulator group were 2.2% compared with 4.8% in the comparison group (P = 0.032, Fisher exact test). The survey had a response rate of 100% (11/11), and 91% (10/11) of respondents felt that the training was "extremely worthwhile" and should be mandatory. CONCLUSIONS: The addition of surgical simulation training was associated with a significantly reduced rate of complications, including posterior capsule tears and vitreous prolapse, among novice postgraduate year 3 residents. There is a perceived utility among residents to incorporate virtual simulation into surgical training. PMID- 29023270 TI - Nursing Education and the 21st Century Library. PMID- 29023269 TI - ALL-PROBE VITRECTOMY DISSECTION TECHNIQUES FOR DIABETIC TRACTIONAL RETINAL DETACHMENTS: Lift and Shave. AB - PURPOSE: To describe the all-probe lift and shave technique to remove fibrovascular tissue and repair diabetic retinal detachments. Anatomical and visual acuity outcomes with this technique are presented. METHODS: In this single surgeon, retrospective review of a consecutive series of eyes with tractional retinal detachment associated with diabetic retinopathy repaired with probe-only dissection techniques. The technique of alternating aspiration with blunt dissection and shaving with the vitrectomy probe is described and shown in video. RESULTS: Forty-two eyes with tractional retinal detachment were successfully repaired and achieved anatomical attachment with the lift and shave technique. Twenty eyes were repaired with 27 g vitrectomy and 22 eyes with 25 g. Ninety percent of eyes improved two or more Snellen lines. Minimum follow-up was 6 months. Complications included iatrogenic breaks in one eye (5%), nonclearing vitreous hemorrhage in four eyes (9%), and reoperation in three eyes (7%) for epiretinal membranes. CONCLUSION: The all-probe lift and shave technique of fibrovascular dissection is a streamlined approach for the management of tractional retinal detachments. Advantages include the need for minimal ancillary instrumentation, increased efficiency, and reduced complications. PMID- 29023271 TI - Dual-Task Tandem Gait and Average Walking Speed in Healthy Collegiate Athletes. AB - OBJECTIVES: To (1) examine the association between a commonly used concussion test, tandem gait, in single/dual-task conditions with single-task and dual-task average walking speed, (2) characterize the prevalence of tandem gait false positives, and (3) develop a normative reference range of dual-task tandem gait times. DESIGN: Cross-sectional study. SETTING: Two NCAA collegiate athletic facilities. INDEPENDENT VARIABLES: Athletes completed the tandem gait test and a gait evaluation in single/dual-task conditions during a preseason examination. MAIN OUTCOME MEASURES: Associations between tandem gait times and average walking speeds were evaluated using multiple linear regression models. Various tandem gait test time pass/fail cutoffs were calculated to examine false-positive rates. RESULTS: Among the 171 participants (103 men, 19.8 +/- 1.2 years of age), dual task tandem gait completion times were independently associated with dual-task average walking speed [beta = -4.018; 95% confidence interval (CI), -7.153 to 0.883], but single-task associations were not found. Male gender was associated with faster tandem gait times in both single-task (beta = -0.880, 95% CI, -1.731 to -0.029) and dual-task conditions (beta = -2.225, 95% CI, -3.691 to -0.759). A pass/fail cutoff threshold of 14 seconds resulted in a 2% false-positive rate for single-task tandem gait, while it resulted in a 29% false-positive rate during dual-task tandem gait. CONCLUSIONS: Average walking speed and dual-task tandem gait represent objective measures that are useful in concussion management. While a single-task tandem gait cutoff of 14 seconds seems appropriate for males, adjustments may be necessary based on sex and alternate pass/fail criteria may be appropriate for dual-task tandem gait. PMID- 29023272 TI - Sensitivity of the Cogstate Test Battery for Detecting Prolonged Cognitive Alterations Stemming From Sport-Related Concussions. AB - OBJECTIVE: To determine if the Cogstate test battery contains the requisite sensitivity to detect prolonged cognitive alterations. METHODS: One hundred twenty collegiate athletes (71 with a history of concussion; 49 controls) completed the Cogstate test battery, to which we added a 2-back condition. In addition to the Cogstate clinical (transformed variables), we analyzed the raw data. RESULTS: The clinical variables failed to reveal any group differences. Further, although the raw data failed to reveal group differences for tasks measuring lower-level cognition, group differences were observed for accuracy on the 1- and 2-back tasks, which require multiple aspects of higher cognition. The overall classification accuracy was higher using the raw data than the clinical variables. The combined sensitivity of the 1- and 2-back task was moderate and specificity was high. CONCLUSIONS: These results suggest that using the raw scores over clinical variables increases the sensitivity of the test battery. Moreover, these results add another piece of evidence suggesting that concussive injuries are associated with subtle long-term alterations in aspects of higher cognition. Importantly, these deficits would have gone unobserved if we had relied solely on automated clinical variables. The current results further our scientific understanding of concussion and may be used to advance clinical practices. PMID- 29023273 TI - Return to Sports After Athletes Undergo Meniscal Surgery: A Systematic Review. AB - OBJECTIVE: The aim of this systematic review was to determine the time to and rate of the return to sports (RTS) after meniscal surgery and to compare these values among the different types of meniscal surgeries. STUDY DESIGN: Systematic review. METHODS: The MEDLINE, EMBASE, and Cochrane databases were searched. Studies that met the following criteria were included: (1) English article, (2) full-text available, (3) study on athletes, and (4) primary outcome is RTS after meniscal surgery, such as meniscectomy, meniscal repair, and meniscal allograft transplantation (MAT). RESULTS: Eleven articles were included in the final analysis. Most players returned to the preinjury activity level from 7 to 9 weeks after partial meniscectomy. After meniscal repair, 81% to 88.9% of athletes returned to sports. The time to RTS after isolated meniscal repair was on average 5.6 months, and the time to RTS was longer for athletes who required concurrent anterior cruciate ligament reconstruction (ACLR). After MAT, 67% to 85.7% of athletes returned to sports, and the time to RTS ranged from 7.6 to 16.5 months. CONCLUSIONS: The shortest time to RTS and the highest RTS rate were observed after partial meniscectomy. The time to RTS was shorter, and the RTS rate was higher after meniscal repair than after MAT. Concurrent procedures such as ACLR prolonged the time to RTS, but it had no effect on the RTS rate and the level of sports activity at the time of RTS. PMID- 29023274 TI - The Injury and Illness Profile of Male and Female Participants in a 94.7 km Cycle Race: A Cross-Sectional Study. AB - OBJECTIVE: To describe the incidence and patterns of injury and illness of male and female participants during a 94.7 km distance cycling event. DESIGN: Descriptive study. SETTING: Momentum 94.7 Cycle Challenge 2014. PARTICIPANTS: All 23 055 race starters (males = 17 520, females = 5236, not specified = 299). MAIN OUTCOME MEASURES: The incidence and type of all medical complaints and difference between sexes. RESULTS: Incidence (per 1000 race starters) of all medical complaints was 38.69 (males = 36.52, females = 38.39), adverse medical events 11.88 (males = 10.73, females = 16.42) and serious adverse events 1.3 (males = 0.86, females = 2.67). The incidence of nontraumatic medical complaints was 32.49 (males = 33.39, females = 31.32) and of traumatic injuries was 3.99 (males = 3.14, females = 7.07). Females compared to males had a higher risk of sustaining traumatic injuries (P < 0.001), central nervous system, (P = 0.0062) and eye complaints (P = 0.0107). Most complaints (80.6%) were reported for the musculoskeletal system. Males 10-15 years (P = 0.0013) and females 23-39 years (P = 0.0336), and older than 50 years (P = 0.0002) had a higher than expected risk for traumatic injuries. CONCLUSIONS: Medical complaints ratio reported was 1:26 (males = 1:28, females = 1:26) in all starters during the cycling event. Cyclists that did not finish the race (adverse events) were 1:84 (males = 1:93, females = 1:61). Serious adverse events that required hospitalization were 1:769 (males = 1:1163, females = 1:374). The majority of admissions were for traumatic injuries, followed by cardiovascular complaints. Results from this study indicated that a wide spectrum of medical complaints can be expected during such an event with a higher risk for females to sustain traumatic injuries and to encounter central nervous system and eye complaints. Information regarding the pattern and type of medical encounters can prove useful during planning and management of similar future events. PMID- 29023275 TI - Proximal Radial Head Fractures in Young Gymnasts: A Case Series of Newly Described Overuse Injuries. AB - We report a case series of unilateral Salter-Harris IV fractures of the proximal radial heads in young female gymnasts. To date, there are no previous reports of such injuries in gymnastics. In all 3 athletes, no significant injury preceded presentation or diagnosis. Radiographs and magnetic resonance imaging showed fractures and associated bone marrow edema of the proximal radial head, respectively. All but 1 was treated nonoperatively with success. Given the lack of acute trauma, lack of large effusion, and good range of motion at presentation, these injuries are believed to be chronic in nature and related to overuse. This case series highlights the need for routine surveillance and the limiting of upper extremity weight bearing when possible in gymnasts. PMID- 29023276 TI - Epidemiology of Competition Injuries in Elite European Judo Athletes: A Prospective Cohort Study. AB - OBJECTIVE: To determine the injury incidence rate (IIR) and injury pattern, and to identify risk factors for injury, among elite adult European judo athletes. DESIGN: Prospective cohort study. SETTING: The 2015 Under 23 European Judo Championships, Bratislava, Slovakia. PARTICIPANTS: All registered athletes (N = 295). INDEPENDENT VARIABLES: Sex, weight division, and fight outcome. MAIN OUTCOME MEASURES: Injury incidence rates were calculated per 1000 athlete exposures (IIRAE) and per 1000 minutes of exposure (IIRME) with 95% confidence intervals (CI). Subgroups were compared by calculating the injury incidence rate ratio (RR) with a 95% CI. RESULTS: The overall IIRAE and IIRME were 35.6 (95% CI, 22.8-53.0) and 10.9 (95% CI, 7.0-16.2), respectively. The most frequently injured anatomical region was the head/neck (41%), whereas the most common type of injury was contusion (33%). The risk of injury was almost 4 times greater for defeated athletes compared with winners [RRME 3.80 (95% CI, 1.47-9.82)]. Athletes in middleweight divisions had a greater risk of injury compared with their lightweight [RRME 3.58 (95% CI, 1.24-10.35)] and heavyweight [RRME 2.34 (95% CI, 0.93-5.89)] counterparts. The risk of injury for women was not significantly different from their male counterparts [RRME 1.33 (95% CI, 0.61-2.90)]. CONCLUSIONS: Weight division (middle) and fight outcome (losing) are significant risk factors for injury. The IIR in elite adult judo competition is lower than that in taekwondo and karate. Future research is encouraged to investigate the actual severity of judo injuries, and to investigate potentially modifiable risk factors to mitigate the risk of injury in judo. PMID- 29023277 TI - Diagnosis and Treatment of Slipping Rib Syndrome. AB - OBJECTIVE: (1) To investigate the clinical presentation, diagnosis, and treatment of slipping rib syndrome in athletes; (2) to investigate the hooking maneuver for diagnosis of slipping rib syndrome. DESIGN: Retrospective chart review of 362 athletes with rib pain. SETTING: Pediatric-based sports medicine clinic between January 1, 1999, and March 1, 2014. PATIENTS: Costochondritis, Tietze, fractures, rib tip syndrome, and unclear diagnoses were excluded. Athletes were included who had a palpable rib subluxation, mechanical rib symptom, positive hooking maneuver, or resolution of pain after the resection of a slipping rib segment. MAIN OUTCOME MEASURES: Slipping rib syndrome is associated with athletic performance. RESULTS: Fifty-four athletes were diagnosed with slipping rib syndrome, of which 38 (70%) were females. Mean age at presentation was 19.1 years (range 4-40 years). Mean number of previous specialist consultations per athlete was 2.3 and mean time from symptom onset to diagnosis was 15.4 months. The hooking maneuver was attempted 21 times (38.9%). Unilateral symptoms presented in 49 athletes (90.7%). The most symptomatic rib was the 10th, affecting 24 athletes (44.4%), eighth and ninth were affected in 17 athletes (31.5%) each. Most, 39 (72.2%), reported insidious onset of symptoms. Running, rowing, lacrosse, and field hockey were frequently associated activities. Twelve athletes had psychiatric diagnoses (22.2%), 10 (19.2%) were hypermobile. Sixty-six total imaging studies were performed. The most successful treatment options included: osteopathic manipulative treatment (71.4%), surgical resection (70%), and diclofenac gel (60%). CONCLUSIONS: Most athletes with slipping rib syndrome were active females with insidious onset of unilateral pain, a high prevalence of hypermobility and prolonged pain. The hooking maneuver was underused. PMID- 29023278 TI - Surgical Approach Impacts Posterior Femoral Cutaneous Nerve Outcomes After Proximal Hamstring Repair. AB - OBJECTIVE: The goal of this study was to characterize the risk of intraoperative injury to the posterior femoral cutaneous nerve and to evaluate potential risk factors for injury during surgical repair of proximal hamstring injuries. DESIGN: Retrospective cohort study. SETTING: Single tertiary referral center. PATIENTS: The cohort consisted of all patients presenting to a single institution with a proximal hamstring avulsion injury who were managed with surgical repair between January 1, 2000 and August 1, 2016. A total of 67 patients were included in the cohort. INDEPENDENT VARIABLES: Variables assessed for their association with postoperative numbness in the distribution of the posterior femoral cutaneous nerve included age, sex, body mass index, mechanism of injury, time to surgical repair, and incision used. MAIN OUTCOME MEASURES: The primary outcome of interest was neurologic symptoms referable to the posterior femoral cutaneous nerve. RESULTS: Postoperatively, 13 patients (19%) developed new numbness in the distribution of the posterior femoral cutaneous nerve. One patient reported neuropathic pain and paresthesias associated with the numbness. The use of a gluteal crease incision was the only predictive factor for postoperative numbness in the posterior femoral cutaneous nerve distribution (odds ratio 8.67; 95% confidence interval, 2.30-42.80; P = 0.001). CONCLUSIONS: The current study provides data that can be used in discussing the risks and benefits of surgical repair with patients and when weighing the pros and cons of using a gluteal crease versus longitudinal incision. PMID- 29023279 TI - Syncope Episodes and Blood Flow Restriction Training. AB - The combination of low-load resistance training [or more recently, neuromuscular electrical stimulation (NMES)] with a moderate local blood flow restriction (BFR) is becoming a widespread training and rehabilitation method. Scientific data indicate the overall safety of BFR, at least in healthy young people. However, it has been associated with side effects, usually minor, and further research is warranted regarding the safety and efficacy of this technique, especially in clinical populations. We found 3 syncope/presyncopal episodes among 21 healthy people (9 men), all occurring in men and during familiarization sessions (in which BFR was applied alone) but not thereafter (BFR sessions combined with NMES): 1 subject experienced a brief syncope and 2 other subjects exhibited presyncopal symptoms (sweating, lightheadedness, and pallor). Our cases are evidence that cardiovascular complications may emerge during BFR. Caution is thus needed in the application of BFR, and gentle familiarization with this training modality is also recommended. PMID- 29023280 TI - Corrective Exercises Improve Movement Efficiency and Sensorimotor Function but Not Fatigue Sensitivity in Chronic Ankle Instability Patients: A Randomized Controlled Trial. AB - OBJECTIVE: To investigate the effect of corrective exercises on functional movement patterns, sensorimotor function, self-reported function, and fatigue sensitivity in collegiate athletes with chronic ankle instability (CAI). DESIGN: A randomized controlled trial. SETTING: Laboratory of sports sciences. PARTICIPANTS: Forty male volunteers were randomly assigned to the experimental group (age 21.2 +/- 1.7 years, height 174.5 +/- 6.1 cm, and weight 69.6 +/- 6.9 kg) or the control group (age 20.9 +/- 1.8 years, height 178.2 +/- 6.6 cm, and weight 68.8 +/- 8.1 kg). INTERVENTION: Participants in the experimental group performed supervised corrective exercises 3 times per week for 8 weeks. Fatigue was induced with a progressive treadmill protocol before and after the 8-week intervention. MAIN OUTCOME MEASURES: Outcomes included movement efficiency during 3 squat tasks, static and dynamic postural control, strength of the ankle musculature, joint position sense, and self-reported function with the Foot and Ankle Ability Measure subscales. These outcomes were assessed before and immediately after fatiguing treadmill running both before and after 8-weeks of corrective exercises. RESULTS: Significant improvements in movement efficiency, sensorimotor function, and self-reported function were noted in the experimental group relative to the control group (P < 0.001), in a nonfatigued state. However, in a fatigued stated, the experimental intervention only improved static postural control (P = 0.016) relative to the control group. CONCLUSIONS: These findings demonstrate that 8-weeks of corrective exercises were effective at enhancing movement efficiency, sensorimotor function, and self-reported function in collegiate athletes with CAI. However, this intervention program has limited abilities at reducing the effects of fatigue. PMID- 29023281 TI - Proton Pump Inhibitor and H2 Blocker-Associated Acute Interstitial Nephritis in a Renal Allograft. PMID- 29023282 TI - Abatacept Monotherapy Versus Abatacept Plus Methotrexate for Treatment-Refractory Rheumatoid Arthritis. AB - BACKGROUND: Methotrexate combination therapy improves abatacept efficacy as a first-line biologic agent for the treatment of rheumatoid arthritis, but it is unclear when abatacept is used later on, particularly after non-TNF inhibitor (TNFi) failure. STUDY QUESTION: The objective of this study was to determine whether treatment response after non-TNFi inadequate response is different in patients with rheumatoid arthritis (RA) treated with abatacept in combination with or not with methotrexate. METHODS: Patients treated with abatacept monotherapy or in combination with methotrexate after non-TNFi failure were included. RESULTS: Data from 46 patients aged 56 years [49-61] with 12 years [8 16] of disease duration were examined. Rituximab was the treatment used in the previous line for 75.0% of the combination therapy group (15/20) and 34.6% (9/26) in the monotherapy group. At 12 months, 38.5% (10/26) of patients were in good-to moderate EULAR response in the monotherapy group compared with 25.0% (5/20) in the combination therapy group (P = 0.33). Treatment persistence at 12 months was 61.5% (16/26) in the monotherapy group and 35.0% (7/20) in the combination therapy group (P = 0.07). CONCLUSIONS: Adding methotrexate to abatacept did not improve treatment response in patients with RA after non-TNFi inadequate response. PMID- 29023283 TI - Big data gets even bigger. PMID- 29023284 TI - Harnessing the power of artificial intelligence. PMID- 29023285 TI - Predictors of Electroconvulsive Therapy Use in a Large Inpatient Psychiatry Population. AB - OBJECTIVE: There is limited research on reliable and clinically useful predictors of electroconvulsive therapy (ECT) use. We aimed to examine factors that predict ECT use in an inpatient psychiatric population. DESIGN: Retrospective analysis of provincial database for inpatient psychiatry. METHODS: This study is a retrospective analysis of a provincial database for inpatient psychiatry. The study includes all psychiatric inpatients 18 years or older in Ontario, Canada, assessed with the Resident Assessment Instrument for Mental Health (RAI-MH) within the first 3 days of admission between 2009 and 2014 (n = 153,023). The RAI MH is a validated assessment tool which includes a breadth of information on symptoms, self-harm, functioning, social support, comorbid medical diagnoses, and risk appraisal. Multivariable analyses were performed using SAS. RESULTS: One hundred forty-five thousand seven hundred (95.2%) of patients admitted had no history of ECT treatment and were not scheduled to receive ECT. A total of 7323 (or 4.8% of the patient population) had either a history of ECT use or were scheduled to receive ECT. Overall rate of ECT use was highest in patients with a provisional diagnosis of mood disorder (7.2%) compared with schizophrenia/other psychotic disorder (3.1%) or substance-related disorder (1.7%). Women were more likely to receive ECT compared with men (overall rates of ECT use 6.2% and 3.4%, respectively). Overall rate of ECT use increased significantly with increasing age. Number of prior hospitalizations was also a strong predictor of ECT use. Conversely, patients with elevated Risk of Harm to Others, schizophrenia, or a substance use disorder were all significantly less likely to receive ECT. All variables examined were statistically significant (P < 0.0001). Higher Severity of Self Harm Scores predicted past use, but not scheduled use of ECT. CONCLUSIONS: This is the largest study to date on predictors of ECT use. Utilization of RAI-MH is a novel and clinically useful method for evaluating predictors of ECT use. Predictors of ECT use within an inpatient population include: presence of a mood disorder, female sex, older age, low risk of harm to others, number of lifetime hospitalizations, lack of substance use disorder, and inability to care for self. PMID- 29023286 TI - STI Versus STD: Coda. PMID- 29023287 TI - Effects of illusory kinesthesia by tendon vibratory stimulation on the postoperative neural activities of distal radius fracture patients. AB - Activation of motor-related regions with illusory kinesthesia had been suspected to contribute toward pain alleviation. We used electroencephalography (EEG) to assess the sensorimotor cortex activation during illusory kinesthesia by vibratory tendon stimulation in patients who were in pain. We investigated the relationship between the sensorimotor cortex and postoperative pain to clarify the analgesia mechanism. Patients who had undergone distal radius fracture surgery were studied. A hand massager provided the vibration stimulus for the illusory kinesthesia on the extensor digitorum muscle at the nonaffected hand's wrist joint on 7 consecutive days starting 1 day after surgery. The main outcomes were pain intensity and EEG activity. EEG activity was recorded during illusory kinesthesia. We also analyzed the high alpha rhythm (10-12 Hz) event-related desynchronization/event-related synchronization. The pain intensity was reduced. Attenuation of the high alpha wave was observed in the bilateral sensorimotor cortex (C3ch, C4ch) areas during illusory kinesthesia. A significant negative correlation was also observed in the C3 and the C4 of event-related desynchronization/event-related synchronization% values and the variation of pain amelioration at rest. Activation of the sensorimotor cortex by illusory kinesthesia might have influenced parts of the descending pain-inhibitory system. The postoperative pain in the patients might have been alleviated by the descending pain-inhibitory system. PMID- 29023289 TI - Parental Perceptions Following Cleft Lip Repair in Their Children. AB - OBJECTIVE: Cleft lip (CL) repair at 3 months is chosen mostly out of convention and offers minimal functional benefit. Potentially, a better cosmetic outcome is possible by delaying repair. This study examines parental perceptions around repair at 3 months to determine if current guidelines are appropriate. DESIGN: Retrospective cross-sectional survey. SETTING: Tertiary-care institution. PARTICIPANTS: Parents of children with CL +/- P under age 6 years who underwent CL repair from 2004 to 2011 at our center were surveyed (n = 64). Response rate was 61% (n = 37). METHODS: Open-ended survey asked about various aspects of parental perceptions before and after repair. Qualitative data analysis is used to interpret survey responses. STATISTICS: Fisher exact test using contingency tables to identify statistically significant results. RESULTS: Nearly all (36/37) parents felt repair was important, citing reasons such as feeding, speech, and appearance. Most (28/37) felt surgery would fix the problem. A portion of parents (15/37) would delay repair if better aesthetics were possible later, but most would not (20/37). Most parents were satisfied with repair quality (33/37). On average, repair did not impact parent-child bonding, and eliminated negative interactions with strangers that parents found distressing. CONCLUSIONS: Arguably, positive parental perceptions of their child's condition reflect favorably on the child's well-being, and may outweigh any future aesthetic benefit. Therefore, current recommendations should be upheld. However, given that some parents would consider delaying repair, they could be offered this option. Future efforts should examine cultural factors, and aesthetic and developmental outcomes of repair at different ages to determine optimal repair timing. PMID- 29023288 TI - Gut microbiome and its role in cardiovascular diseases. AB - PURPOSE OF REVIEW: In recent years, an interest in intestinal microbiota-host interactions has increased due to many findings about the impact of gut bacteria on human health and disease. Dysbiosis, a change in the composition of the gut microbiota, has been associated with much pathology, including cardiovascular diseases (CVD). This article will review normal functions of the gut microbiome, its link to CVD, and potential therapeutic interventions. RECENT FINDINGS: The recently discovered contribution of gut microbiota-derived molecules in the development of heart disease and its risk factors has significantly increased attention towards the connection between our gut and heart. The gut microbiome is virtually an endocrine organ, arguably the largest, capable of contributing to and reacting to circulating signaling molecules within the host. Gut microbiota host interactions occur through many pathways, including trimethylamine-N-oxide and short-chain fatty acids. These molecules and others have been linked to much pathology including chronic kidney disease, atherosclerosis, and hypertension. SUMMARY: Although our understanding of gut microbiota-host interactions has increased recently; many questions remain about the mechanistic links between the gut microbiome and CVD. With further research, we may one day be able to add gut microbiota profiles as an assessable risk factor for CVD and target therapies towards the gut microbiota. PMID- 29023291 TI - Craniocervical Pseudomeningocele Following Cerebellar Meningioma Resection: Demonstration of Neck of Pseudomeningocele With Three-Dimensional Isotropic T2 Weighted SPACE Sequence at 3 Tesla (3T) Magnetic Resonance Imaging. AB - Postoperative pseudomeningocele is an uncommon complication of craniospinal surgery. Diagnosis is reached on a postoperative computed tomography and magnetic resonance (MR) imaging. Demonstration of the location and dimension of the dural defect before surgical therapy is a very important. T1- and T2-weighted MR images revealed a significant pseudomeningocele extending from left cervicooccipital region. Magnitude and phase-contrast-MR images showed a cerebrospinal fluid (CSF) flow into pseudomeningocele, but they no revealed dural defect. Three-dimensional isotropic T2-weighted SPACE sequence revealed a signal void indicating CSF flow into pseudomeningocele and location and exact size of dural tear. Three dimensional isotropic T2-weighted SPACE sequence is certainly the noninvasive and optimal method for demonstrating postoperative pseudomeningocele sacs. It demonstrates a pseudomeningocele regardless of an existing communication with the dural membrane. PMID- 29023290 TI - Fascial Graft Repair of Wide Bilateral Cleft Lip Deformity. AB - Wide bilateral cleft lip deformity reconstruction represents a special difficulty as it affects the lip, nose, and maxillary segments making single-stage reconstruction sometimes unobtainable. Many surgical and nonsurgical techniques have been prescribed to facilitate the definitive repair. Although some of these techniques proved to be useful, they have their inherent limitations and add another treatment step with all its possible complications and costs. The authors present a new method to address muscle layer repair in 1-stage procedure. It entails using fascial graft obtained from the temporalis muscle fascia or fascia lata, to reconstruct orbicularis oris lip muscle. Seven patients of wide bilateral cleft lip deformity (mean 17 mm) with a mean age of 4.4 months were subjected to single-stage lip reconstruction. After measuring the defect between both lateral muscle segments in front of the premaxilla intraoperatively ensuring that direct muscle repair could not be obtained, a fascial graft was harvested and sutured to both muscle edges. The authors found that, regardless the defect size or premaxilla protrusion, all wide clefts could be reconstructed satisfactorily in 1 stage procedure. No serious postoperative complications have been encountered in the lip or donor areas. Early follow-up reporting of the patients revealed stable repair. However more follow-up is still needed to assess late sequelae. In conclusion, fascial graft muscle repair of wide bilateral cleft lip deformity enables early 1-stage lip reconstruction without tension. The added donor morbidity is minimal and well tolerated. PMID- 29023292 TI - Silicone Facial Prosthesis: A Preliminary Report on Silicone Adhesion to Magnet. AB - Although a silicone facial prosthesis has many advantages, silicone's limited cementation with resin or metal has caused many maxillofacial reconstructive surgeons and prosthodontists concern regarding the use of silicone-based facial prostheses. This study demonstrates 1 representative silicone facial prosthesis patient with magnet cementation to silicone using plastic clay, which will be applied to various maxillofacial prosthesis strategies in the near future. PMID- 29023293 TI - Form, Function, and Esthetics in Prosthetically Rehabilitated Maxillary Defects. AB - PURPOSE: Patients with maxillofacial defects secondary to the removal of benign and malignant pathologies of midface have a profound impact on quality of life. The aim of this study was to collect and analyze the data pertaining to 4 designs of obturator by assessment of the patient with obturator functioning scale (OFS) MATERIALS AND METHODS:: This retrospective analysis included all the patients who underwent prosthetic rehabilitation of maxillary defects using 4 different types (conventional, cast partial, hollow bulb, and magnet retained) of obturators from 2009 to 2016 with minimum 1 year of follow up. Demographics, number, size, location, type of pathology, postmorbid dentition, and the treatment rendered were recorded. Obturator functioning scale was used to subjectively assess the patient satisfaction. RESULTS: The mean score on OFS was 5.67 (standard deviation: 1.8). There was a fair and statistical improvement in chewing/eating, speech clarity in public/on phone, swallowing of foods and liquids, pronunciation of words, and social interaction (P < 0.05). The outcome was best in magnet retained followed by cast partial group. The least outcome was in conventional obturator group. CONCLUSION: Obturators of different designs do play an important role in rehabilitation of maxillary defects with a satisfactory outcome. PMID- 29023295 TI - Craniofacial Surgery in Chile. PMID- 29023294 TI - Cleft Lip and Palate: Demographic Patterns and the Associated Communication Disorders. AB - PURPOSE: This study investigated demographical characteristics, health status, and associated communication disorders in patients with orofacial clefts (OFCs) in Northern Jordan. METHODS: A retrospective study of 226 cleft patients and their families was carried out between March 2012 and September 2016 at the Speech and Hearing Clinic and the Maxillofacial Center at King Abdullah University Hospital. Data were collected by interviewing patients and caregivers, having patients or caregiver to complete a questionnaire and reviewing the patient's medical records. The frequencies of OFC type, demographic, health status, and communication disorders variables were calculated. chi analysis was used to test for significance of associated demographic and communication disorders variables with OFC type. RESULTS: Results revealed higher percentage of males compared with female patients. The majority of OFC patients were born to families who lived in urban areas, obtained high school diploma or lower educational level, lived below poverty cutoff, and showed nonconsanguineous marriages. Most mothers took the prescribed pregnancy supplements. Only one-third of the families received health education and reported other incidences of OFCs. Twenty percent of the patients had other congenital anomalies, 80% experienced dysphagia prior to the cleft repair, dropped to 14% after the repair. Higher percentage of patients with isolated cleft palate and cleft lip and palate exhibited hearing loss, hypernasality, articulation and phonological disorders, and dysphagia compared with those with cleft lip only. None of the demographic variables was associated with OFC type. CONCLUSIONS: Data suggested that families who had children with OFCs displayed poor socioeconomic status and low educational level which may impede the delivery of health education by health practitioners. Increased risk of comorbid communication disorders and malformations in OFC patients must be emphasized and disseminated to health professionals involved in the management of patients with OFC. PMID- 29023296 TI - Variability in Minimally Invasive Surgery for Sagittal Craniosynostosis. AB - Minimally invasive approaches to the surgical correction of sagittal craniosynostosis are gaining favor as an alternative to open cranial vault remodeling. In this systematic review, the reviewers evaluate the variability in described surgical techniques for minimally invasive correction of sagittal craniosynostosis. Articles were selected based on predetermined inclusion and exclusion criteria from an online literature search through PubMed, EMBASE, and the Cochrane library. Extracted data included the incisions, method of dissection, osteotomies performed, and type of force therapy utilized.A total of 28 articles from 15 author groups were included in the final analysis. Of the 28 articles, 17 distinct techniques were identified. Significant variation existed in both the technique and the terminology used to describe it. Access to the cranium varied between a standard bicoronal incision (n = 2), a "lazy S" incision (n = 2), and multiple short incisions along the fused sagittal suture (n = 13). Additional variations were found in the size and design of the osteotomy, the usage (and duration, if applicable) of force therapy, and the age of the patient at the time of surgical intervention.This systematic review demonstrates that minimally invasive approaches to sagittal craniosynostosis vary widely in technique with respect to the incisions, osteotomies, and force therapy used. Additionally, the terminology employed in describing minimally invasive approaches is inconsistent across centers. This discrepancy between technique and terminology presents challenges for reporting and interpreting the increasing body of literature on this subject. We recommend standard terminology be used for future publications on minimally invasive techniques. PMID- 29023297 TI - Evaluation of Sinonasal Change After Lefort I Osteotomy Using Cone Beam Computed Tomography Images. AB - Orthognathic surgery including Le Fort I osteotomy involves changes in the nasal septum and maxillary sinus. This study assesses nasal septum changes after Le Fort I osteotomy using cone beam computed tomography images and evaluates mucosal changes in the maxillary sinus after the surgery.This was a retrospective study of 33 patients who underwent orthognathic surgery including Le Fort I osteotomy. To assess the maxillary sinus, changes in the mucosa of the maxillary sinus were analyzed by volume and geometry. We measured the air cavity per se and mucosal thickening of the maxillary sinus using SIMPLANT (Materialise, Belgium) software. And the geometry of the distribution of the mucosa was analyzed using cone beam computed tomography images.The septal angle was decreased after surgery, but not significantly (P > 0.05). The volume reduction of the air cavity per se and the volume increase associated with mucosal thickening were statistically significant (P < 0.05). Mucosal thickening was observed in the posterior-inferior direction.In this study, nasal septum deviation was not statistically significant after Le Fort I osteotomy. Decrease of the air cavity per se, decrease of the total volume of the maxillary sinus, and increase of mucosal thickening were prominent. Furthermore, the mucosal thickening that occurs after surgery appears to be mainly in the posterior lower part of the maxillary sinus. PMID- 29023298 TI - Appraisal of Function After Rehabilitation With Tongue Prosthesis. AB - STATEMENT OF THE PROBLEM: Prosthetic rehabilitation following total glossectomy is very complex procedure from clinical as well as laboratory point of view. The basic objective of prosthodontic rehabilitation is to deliver a comfortable as well as esthetically suitable prosthesis, which restores the impaired speech and deglutition function. PURPOSE: Prosthetic rehabilitation of patients after total glossectomy with tongue prosthesis to evaluate improvement in speech as well as swallowing function. MATERIALS AND METHODS: Tongue prostheses were fabricated with high-temperature vulcanizing silicone and heat-polymerizing acrylic to restore the functions affected after surgical resection of tongue. Patient's speech was evaluated with Dr Speech software version 4. The speech software was used to assess different speech parameters such as maximum phonation time, fundamental frequency, intensity, jitter, and shimmer. Deglutition assessment was done subjectively by using a standardized questionnaire designed by the speech pathologist. Speech was recorded for assessment before prosthetic rehabilitation and 2 weeks after delivery of the tongue prosthesis. RESULTS: After analysis of various speech parameters frequency range was improved with prosthesis (ie, 172.19 Hz) as compared to without prosthesis (ie, 111.47 Hz). Speech intelligibility was improved with tongue prosthesis. Deglutition assessment revealed that patient's deglutition abilities were improved. CONCLUSION: Tongue prosthesis helps to improve speech and articulation in patients with total glossectomy. Apart from that deglutition capability is also significantly improved. CLINICAL IMPLICATIONS: Total glossectomy affects speech, mastication, and swallowing to a greater proportion. It may also lead to psychological impairment of the patient. Tongue prosthesis efficiently improves speech and deglutition abilities of the patient leading to a better quality of life. PMID- 29023299 TI - Reconstruction of Liposarcoma Resection Defect With a Made-to-Measure Polyethylene Prosthesis Using Three-Dimensional Digital Technology. AB - BACKGROUND: Liposarcoma is considered one of the most frequently occurring tumors of the soft tissues, representing 17% to 30% of all mesenchymal cell tumors. It is less common in the head and neck representing <10% of tumors in this region. The reconstruction of defects derived from resection of these tumors presents a surgical challenge. New three-dimensional digital technologies allow more exact surgery, cause less morbidity, and achieve adequate aesthetic outcomes. OBJECTIVE: The aim of this article was to describe the complex reconstruction of a defect caused by the resection of a liposarcoma in the temporal region. METHODS: Three-dimensional technology allowed patient planning and a reconstruction that was as exact as possible. A made-to-measure polymethyl methacrylate prosthesis was used to correct the defect in the zygomatic arch. The temporal fossa was covered with a standard porous polyethylene prosthesis. CONCLUSIONS: Satisfactory esthetic and functional results were achieved using three-dimensional digital technology for treatment planning and to fabricate a made-to-measure polyethylene prosthesis and surgical guide. PMID- 29023300 TI - Thyroglossal Duct Cyst at the Base of Tongue: The Emerging Role of Transoral Endoscopic-Assisted Surgery. AB - Cystic lesions involving the tongue base are rare, generally presenting in pediatric patients, and they may encompass different pathologies such as ranula, lingual ectopic thyroid, thyroglossal duct cyst (TDC), dysontogenetic cysts, benign, and malignant tumors.This paper describes the case of a 19-year-old girl with phonation impairment and mild dysphagia due to limited tongue protrusion and movements. Radiologic examinations revealed a bulky cystic lesion at the base of tongue with displacement of extrinsic lingual muscles. A minimally invasive transoral removal of the mass was performed under the assistance of the endoscopic system. The histopathologic analysis confirmed the diagnosis of intralingual TDC. After 2 years of clinical and radiologic follow-up, no recurrence of disease was observed and the patient is completely asymptomatic.The present experience suggests that the endoscopic-assisted transoral removal of intralingual TDC can be proposed as a safe and effective procedure, alternative to traditional transcervical surgery as well as to transoral robotic surgery, leading to very appealing cosmetic results and encouraging functional outcomes in terms of phonation and swallowing. Preoperative radiologic examinations should be performed for an accurate diagnosis and appropriate selection of patients. PMID- 29023301 TI - Inflammatory Myofibroblastic Tumor: Rare Manifestation in Face. AB - Inflammatory myofibroblastic tumor, also known as inflammatory pseudotumor and plasma cell granuloma, is a tumor that occurs most often in the lungs, abdomen, skin, soft tissue, genital system, and mediastinal. Before surgery, the diagnosis is difficult to establish because of its diverse manifestations. In the head and neck, manifestation is rare and may occur in the upper respiratory tract, soft tissues, orbits, and skull base. This article aims to report a rare manifestation of the disease in the face, highlighting the importance of a correct diagnosis to determine the most appropriate form of treatment, in male patient, leucoderma, 22 years old, with complain of a painless unilateral growth in the left cheek, beginning 2 months before and with progressive growth. PMID- 29023302 TI - Complete Resolution of Lymphoid Interstitial Pneumonia in a Patient With Juvenile Myelomonocytic Leukemia Treated With Allogeneic Bone Marrow Transplant: Killing 2 Birds With 1 Stone. AB - Lymphoid interstitial pneumonia (LIP) is a rare disease characterized by benign reactive polyclonal proliferation of bronchus-associated lymphoid tissue after exposure to inhaled or circulating antigen(s), leading to a disease symptomatology similar to idiopathic interstitial pneumonia. Its association with diseases that are caused due to immune dysregulation (autoimmune diseases, congenital/acquired immunodeficiency, and allogeneic bone marrow transplant) and response to immunomodulatory/suppressive medications suggests an immunologic pathophysiology. Although LIP has been reported in association with lymphoproliferative diseases like Castleman disease, it has never been described in patients with leukemia. We report the first case of LIP in a patient with juvenile myelomonocytic leukemia (JMML) who was found to have a novel germline mutation of unknown significance in additional sex combs-like-1 (ASXL1) gene and a pathogenic somatic mutation of protein tyrosine phosphatase, nonreceptor type 11 (PTPN11) gene at diagnosis. The patient underwent a matched unrelated bone marrow transplant for JMML with complete resolution of JMML and LIP with no recurrence to date. We also emphasize the importance of considering LIP in differential diagnosis of pulmonary lesions seen in conjunction with hematologic malignancies and distinguishing it from malignant infiltration of the lung. PMID- 29023303 TI - Test-Retest Reliability of an Experienced Global Trigger Tool Review Team. AB - OBJECTIVES: During a comprehensive patient safety program at a 550-bed regional hospital in the Capital Region of Denmark, we observed an unexpected and unexplained doubling of the median patient harm rate from 56 to 109 harms per 1000 patient days measured by the Institute for Healthcare Improvement Global Trigger Tool (GTT). Meanwhile, other measures of patient safety, including hospital standardized mortality ratio, were stable or improving. Moreover, the review team was very experienced and stable during this period. Thus, we hypothesized that the increase in harm rate was not a true reflection of increased risk of patient harm but the result of the team getting better at identifying harms during GTT reviews. METHODS: We examined the ability of the GTT review team to reproduce the rate of harm of two separate periods in the same hospital: period 1 (January-June 2010) and period 2 (October 2011-March 2012). For each period, we examined two samples: the original sample that was drawn and used for the ongoing monitoring of harm at the hospital during the safety campaign and a second that we drew and analyzed for this study. RESULTS: We found increased harm rates both between review 1 and review 2 and between period 1 and period 2. The increase was solely in category E, minor temporary harm. CONCLUSIONS: The very experienced GTT team could not reproduce harm rates found in earlier reviews. We conclude that GTT in its present form is not a reliable measure of harm rate over time. PMID- 29023304 TI - Association of Insulin and Cholesterol Levels With Peripheral Nervous System Function in Overweight Adults: A 3-Year Follow-up. AB - PURPOSE: The purpose of this prospective 3-year follow-up was to investigate the association of glucose, insulin, and cholesterol levels with peripheral nervous system function in overweight and obese subjects. METHODS: Forty nondiabetic overweight and obese adults were enrolled, of whom 29 completed the follow-up. Peripheral nervous system function was measured and defined by conduction studies of the peroneal motor nerve and the radial, sural, and medial plantar sensory nerves. Serum insulin and glucose levels were determined with an oral glucose tolerance test, and cholesterol levels were measured. The measurements were performed at baseline and after 3 years. RESULTS: The change in serum insulin level at 120 minutes after an oral glucose tolerance test was positively associated with changes in peroneal nerve conduction velocities and F-wave mean, sural nerve conduction and medial plantar nerve conduction velocities. Action potential amplitudes decreased consistently and significantly in all sensory nerves. CONCLUSIONS: The change in serum insulin level at 120 minutes appears to be positively associated with changes in nerve conduction velocities more than 3 years but not with nerve action potential amplitudes. Significant decreases in the action potential amplitudes of all sensory nerves suggest that such changes might be the earliest detectable sign of damage to the peripheral nervous system in overweight and obese people without type 2 diabetes. PMID- 29023305 TI - Insights Into the Therapeutic Effect of Responsive Neurostimulation Assessed With Scalp EEG Recording: A Case Report. AB - The responsive neurostimulation system (RNS) is the first closed-loop neurostimulator approved as an adjunctive treatment for adults with medically refractory focal epilepsy from no more than two seizure foci. In addition to its therapeutic effect, it provides chronic intracranial EEG recordings, with limited storage capacity. Long-term monitoring with scalp EEG recordings can provide additional information regarding seizure patterns, the efficacy of RNS stimulation in aborting individual seizures, and the net effect of RNS on seizure control. We present a 34-year-old woman with medically intractable right temporoparietal lobe epilepsy who failed two resective epilepsy surgeries and MR guided laser interstitial thermal therapy (MRgLITT), after which RNS was implanted. Long-term scalp EEG performed 16 months after implantation showed continuous right hemisphere slowing and right temporal sharp waves. In addition, RNS stimulation produced bursts of high-voltage, broad-field, surface-negative activity, which allowed correlation of RNS stimulation with scalp EEG patterns. Twenty-seven seizures were captured. Responsive neurostimulation system stimulation did not abort any of the seizures recorded on the scalp EEG. However, the frequency of seizures doubled after RNS stimulation was discontinued and returned to baseline once it was turned back on. This observation supports the neuromodulation effect of RNS. PMID- 29023306 TI - Medical Error Avoidance in Intraoperative Neurophysiological Monitoring: The Communication Imperative. AB - Error avoidance in medicine follows similar rules that apply within the design and operation of other complex systems. The error-reduction concepts that best fit the conduct of testing during intraoperative neuromonitoring are forgiving design (reversibility of signal loss to avoid/prevent injury) and system redundancy (reduction of false reports by the multiplication of the error rate of tests independently assessing the same structure). However, error reduction in intraoperative neuromonitoring is complicated by the dichotomous roles (and biases) of the neurophysiologist (test recording and interpretation) and surgeon (intervention). This "interventional cascade" can be given as follows: test -> interpretation -> communication -> intervention -> outcome. Observational and controlled trials within operating rooms demonstrate that optimized communication, collaboration, and situational awareness result in fewer errors. Well-functioning operating room collaboration depends on familiarity and trust among colleagues. Checklists represent one method to initially enhance communication and avoid obvious errors. All intraoperative neuromonitoring supervisors should strive to use sufficient means to secure situational awareness and trusted communication/collaboration. Face-to-face audiovisual teleconnections may help repair deficiencies when a particular practice model disallows personal operating room availability. All supervising intraoperative neurophysiologists need to reject an insular or deferential or distant mindset. PMID- 29023308 TI - Considerations About "Carpal Tunnel Syndrome Grading Using High-Resolution Ultrasonography". PMID- 29023309 TI - Reply to Considerations About "Carpal Tunnel Syndrome Grading Using High Resolution Ultrasonography". PMID- 29023310 TI - Lid-Parallel Conjunctival Folds and Their Ability to Predict Dry Eye. AB - PURPOSE: The observation of lid-parallel conjunctival folds (LIPCOF) is reported to be useful in dry eye diagnoses. Around 70% of the European clinicians use this test in a dry eye clinic. This study investigated the sensitivity and specificity of LIPCOF to predict dry eye. METHODS: Ocular Surface Disease Index (OSDI) outcome, noninvasive break-up time (NIKBUT) using the Keratograph (Oculus, Wetzlar, Germany), and LIPCOF of 148 randomized selected patient reports (88 females; mean age=37.0+/-12.9 years) from 3 different sites were analyzed. Subjects were divided into dry eye and non-dry eye groups by OSDI only, named symptomatic dry eye (OSDI scores >=15) and by a composite score (OSDI scores >=15 and NIKBUTaverage of <=9 sec). RESULTS: Lid-parallel conjunctival folds (temporal, nasal, Sum [=temporal+nasal]) were significantly correlated to OSDI and to NIKBUTaverage (Spearman; r>-0.185, P<0.013). NIKBUTaverage (r=-0.322; P<0.001) was significantly correlated to OSDI scores. Based on the OSDI questionnaire, 37.2% of the subjects were symptomatic and 14.7% were positive for dry eye based on the composite score. Lid-parallel conjunctival folds were a significant discriminator between healthy and dry eye subjects (P<=0.001). The areas under the receiver operating characteristic curve for temporal LIPCOF, nasal LIPCOF, and LIPCOF Sum were 0.716, 0.737, and 0.771, respectively, for the symptomatic dry eye group and 0.771, 0.719, and 0.798, respectively, for the composite dry eye group. CONCLUSIONS: As LIPCOF demonstrated high predictive ability of dry eye; it appears to be a promising test in the diagnoses of dry eye. PMID- 29023307 TI - Interrater Agreement of EEG Interpretation After Pediatric Cardiac Arrest Using Standardized Critical Care EEG Terminology. AB - PURPOSE: We evaluated interrater agreement of EEG interpretation in a cohort of critically ill children resuscitated after cardiac arrest using standardized EEG terminology. METHODS: Four pediatric electroencephalographers scored 10-minute EEG segments from 72 consecutive children obtained 24 hours after return of circulation using the American Clinical Neurophysiology Society's (ACNS) Standardized Critical Care EEG terminology. The percent of perfect agreement and the kappa coefficient were calculated for each of the standardized EEG variables and a predetermined composite EEG background category. RESULTS: The overall background category (normal, slow-disorganized, discontinuous, or attenuated featureless) had almost perfect agreement (kappa 0.89).The ACNS Standardized Critical Care EEG variables had agreement that was (1) almost perfect for the seizures variable (kappa 0.93), (2) substantial for the continuity (kappa 0.79), voltage (kappa 0.70), and sleep transient (kappa 0.65) variables, (3) moderate for the rhythmic or periodic patterns (kappa 0.55) and interictal epileptiform discharge (kappa 0.60) variables, and (4) fair for the predominant frequency (kappa 0.23) and symmetry (kappa 0.31) variables. Condensing variable options led to improved agreement for the continuity and voltage variables. CONCLUSIONS: These data support the use of the standardized terminology and the composite overall background category as a basis for standardized EEG interpretation for subsequent studies assessing EEG background for neuroprognostication after pediatric cardiac arrest. PMID- 29023311 TI - Comparison of Extended Depth-of-Focus Prototype Contact Lenses With the 1-Day ACUVUE MOIST MULTIFOCAL After One Week of Wear. AB - OBJECTIVES: To compare visual performance of extended depth-of-focus (EDOF) prototypes with a new, center-near, commercial, multifocal contact lens. METHODS: Presbyopic participants (n=57) wore 1-Day ACUVUE MOIST MULTIFOCAL (1DAMM) and an EDOF prototype for one week in a double-masked, prospective, cross-over, randomized clinical trial. Manufacturers' guide was used to select the first pair of lens to be fit based on subjective distance refraction and near addition. After one week, high- and low-contrast visual acuities were measured at distance (6 m), intermediate (70 cm) and near (50 and 40 cm), and stereopsis at 40 cm. Subjective performance was assessed on a 1 to 10 numeric rating scale for vision clarity and lack of ghosting at distance, intermediate and near, vision stability, haloes at night time, overall vision satisfaction, and ocular comfort. Linear mixed models were used for analysis and the level of significance was set at 5%. RESULTS: 1DAMM was not significantly different from EDOF for high- or low contrast visual acuity at any distance, or for stereopsis. Subjectively, EDOF was significantly better than 1DAMM for vision clarity at intermediate (P=0.033) and near (P<0.001), overall lack of ghosting (P=0.012), vision stability (P=0.004), and overall vision satisfaction (P=0.005). For all other subjective variables, there were no differences between EDOF and 1DAMM (P>0.05). CONCLUSIONS: EDOF prototype lenses offer improvements over the newly marketed 1DAMM lenses for several subjective variables. PMID- 29023312 TI - Prediction of Descemet Membrane Perforation During Deep Anterior Lamellar Keratoplasty in Patients With Keratoconus With Stromal Scar. AB - OBJECTIVES: To report big-bubble deep anterior lamellar keratoplasty (DALK) in patients with keratoconus with corneal stromal scar, and to investigate factors that can influence intraoperative Descemet membrane (DM) perforation. METHODS: A retrospective study included patients with keratoconus with central stromal scar that underwent DALK using the big-bubble technique. Best spectacle-corrected visual acuity (BSCVA), keratometry, minimum corneal thickness (MCT), stromal scar depth, and endothelial cell density (ECD) were recorded. Receiver operating characteristic (ROC) curves were analyzed to predict an intraoperative perforation related to stromal scar. RESULTS: Thirty-eight eyes of 38 patients with keratoconus (mean age: 30.0+/-9.2 years) were included in this study. Thirty four eyes had successful DALK; in four eyes, the procedure was converted to penetrating keratoplasty because of DM macroperforations. Successful big-bubble formation was achieved in 24 of 38 (63.2%) eyes, whereas in 10 eyes, manual dissection was used to complete the DALK. Mean preoperative and postoperative second year BSCVA were 1.3 (+/-0.4) and 0.5 (+/-0.2) logarithm of the minimum angle of resolution (P<0.001), keratometry values were 65.5+/-7.4 and 42.8+/-7.8 diopters (P<0.001), and ECD were 2,740+/-359 and 2,279+/-452 cells/mm (P<0.001), respectively. Using ROC analysis, the area under curve value to predict DM perforation was found to be 0.792 (scar/MCT ratio, P=0.04) and the best cutoff point for scar depth/MCT ratio was 53%. CONCLUSION: Big-bubble DALK is effective in patients with keratoconus with stromal scars. Scar depth/MCT ratio seems to predict the DM perforation. PMID- 29023313 TI - Mini-Scleral Lenses for Correction of Refractive Errors After Radial Keratotomy. AB - OBJECTIVE: To evaluate the factors affecting clinical outcomes of correcting cumulative refractive errors or irregular astigmatism after radial keratotomy (RK) using mini-scleral lenses. METHODS: We retrospectively analyzed 36 eyes receiving mini-scleral lenses after RK from July 2011 to June 2016. Analyses included age, refractive errors, best spectacle-corrected visual acuity (BSCVA), best contact lens-corrected visual acuity (BCLCVA), topographic indices, RK treatment zone diameter (TZD), power difference (PrD) within the RK treatment zone, and decentration distance (DD) of the RK treatment zone center. An increase of three lines or more of Snellen visual acuity was considered a successful fitting. RESULTS: Of the eyes fitted with mini-scleral lenses, the BCLCVA (logarithm of the minimum angle of resolution [logMAR] 0.19+/-0.22) was significantly better than the BSCVA (logMAR 0.47+/-0.30). Twenty-three patients (64%) had a successful fitting. There was no statistically significant difference between successful and unsuccessful fittings with regard to age, prefitting refractive error, BSCVA, corneal astigmatism, simulated steep/flat K values, surface regularity index, TZD, or PrD. However, successful fittings had better centration of treatment zones with an average DD of 0.54+/-0.44 mm compared with a DD of 0.92+/-0.53 mm in the unsuccessfully fitted eyes. In addition, our case series showed that there was a negative impact on fitting outcomes in the presence of small central clear zones resulting from central incisions or scars. CONCLUSIONS: Although decentration of the RK treatment zone and small central clear zones were related to less optimal fitting results, mini-scleral lenses are a feasible option to correct cumulative refractive errors and irregular astigmatism in post-RK patients. PMID- 29023314 TI - Renal dysfunction and cirrhosis. AB - PURPOSE OF REVIEW: Hepatorenal syndrome (HRS) does not represent the predominant phenotype of acute kidney injury (AKI) in cirrhosis. Early recognition of HRS helps initiate appropriate therapy. The aims of this review are to present redefinition of AKI, to list new biomarkers, to report recent data on vasopressors in HRS and to propose criteria for simultaneous liver and kidney transplantation (SLKT). RECENT FINDINGS: Urine output, which was not part of the definition of AKI might be reconsidered as it has an independent prognostic value. Biomarkers (NGAL and IL-18) could help identify ATN. However, cut-off values have to be clarified. Vasopressors with albumin represent first option in HRS. Continuous infusion of terlipressin has a better safety profile than intravenous boluses. SLKT should be considered whenever native kidney recovery is unlikely [i.e. prolonged renal replacement therapy (RRT) and/or GFR less than 25 ml/min for 6 weeks prior to transplantation]. SUMMARY: New definitions and recent biomarkers may help differentiate HRS from ATN at an earlier stage. Urine output should be reconsidered in the definitions. Even in patients who are not candidates for transplantation, a short trial of RRT is justified whenever needed. SLKT should be considered whenever posttransplant renal recovery is unlikely. PMID- 29023315 TI - Biomarkers of drug-induced kidney injury. AB - PURPOSE OF REVIEW: Drug-induced kidney injury (DIKI) is an important and potentially modifiable cause of acute kidney injury (AKI). The reliance on traditional markers of kidney injury to diagnose DIKI impedes early detection. Biomarkers of DIKI that facilitate early diagnosis and the identification of high risk patients are essential to ameliorate the clinical burden of this complication. RECENT FINDINGS: Recent progress in this area supports the potential utility of several biomarkers for the diagnosis of DIKI, for the prediction of outcomes and also for monitoring responses to potential nephrotoxic or beneficial therapies. Data regarding the impact of clinically relevant factors, such as chronic kidney disease, on biomarker levels represents a further recent advancement. Emerging novel biomarkers include microRNAs, which are showing promise as markers of drug-induced tubular damage. They may also have a role in elucidating the molecular mechanisms of AKI. SUMMARY: There is compelling evidence to support the use of biomarkers for the early detection of DIKI. Ongoing research is required to delineate their role in prognostication and for the prediction of outcomes. The inclusion of biomarkers in more clinical studies of DIKI would be a welcome advance, which may accelerate their integration into clinical diagnostics. PMID- 29023316 TI - Septic shock resuscitation in the first hour. AB - PURPOSE OF REVIEW: We reviewed the recent advances in the initial approach to resuscitation of sepsis and septic shock patients. RECENT FINDINGS: Sepsis and septic shock are life-threatening emergencies. Two key interventions in the first hour include timely antibiotic therapy and resuscitation. Before any laboratory results, the need for resuscitation is considered if a patient with suspected infection has low blood pressure (BP) or impaired peripheral circulation found at clinical examination. Until now, this early resuscitation in sepsis and septic shock was supported by improvements in outcome seen with goal-directed therapy. However, three recent, goal-directed therapy trials failed to replicate the originally reported mortality reductions, prompting a debate on how this early resuscitation should be performed. As resuscitation is often focussed on macrociculatory goals such as optimizing central venous pressure, the discordance between microcirculatory and macrocirculatory optimization during resuscitation is a potential argument for the lack of outcome benefit in the newer trials. Vasoactive drug dose and large volume resuscitation-associated-positive fluid balance, are independently associated with worse clinical outcomes in critically ill sepsis and septic shock patients. As lower BP targets and restricted volume resuscitation are feasible and well tolerated, should we consider a lower BP target to reduce the adverse effects of catecholamine' and excess resuscitation fluids. Evidence guiding fluids, vasopressor, and inotrope selection remains limited. SUMMARY: Though the early resuscitation of sepsis and septic shock is key to improving outcomes, ideal resuscitation targets are elusive. Distinction should be drawn between microcirculatory and macrocirculatory changes, and corresponding targets. Common components of resuscitation bundles such as large volume resuscitation and high-dose vasopressors may not be universally beneficial. Microcirculatory targets, individualized resuscitation goals, and reassessment of completed trials using the updated septic shock criteria should be focus areas for future research. PMID- 29023317 TI - Effects of physical exercise in older adults with reduced physical capacity: meta analysis of resistance exercise and multimodal exercise. AB - Older adults with reduced physical capacity are at greater risk of progression to care dependency. Progressive resistance strength exercise and multimodal exercise have been studied to restore reduced physical capacity. To summarize the best evidence of the two exercise regimes, this meta-analysis study appraised randomized-controlled trials from published systematic reviews. Medline, Embase, and the Cochrane Database of Systematic Review and Cochrane Central Register of Controlled Clinical Trials were searched for relevant systematic reviews. Two reviewers independently screened the relevant systematic reviews to identify eligible trials, assessed trial methodological quality, and extracted data. RevMan 5.3 software was used to analyze data on muscle strength, physical functioning, activities of daily living, and falls. Twenty-three eligible trials were identified from 22 systematic reviews. The mean age of the trial participants was 75 years or older. Almost all multimodal exercise trials included muscle strengthening exercise and balance exercise. Progressive resistance exercise is effective in improving muscle strength of the lower extremity and static standing balance. Multimodal exercise is effective in improving muscle strength of the lower extremity, dynamic standing balance, gait speed, and chair stand. In addition, multimodal exercise is effective in reducing falls. Neither type of exercise was effective in improving activities of daily living. For older adults with reduced physical capacity, multimodal exercise appears to have a broad effect on improving muscle strength, balance, and physical functioning of the lower extremity, and reducing falls relative to progressive resistance exercise alone. PMID- 29023318 TI - Comparison of gut-directed hypnotherapy and unspecific hypnotherapy as self-help format in children and adolescents with functional abdominal pain or irritable bowel syndrome: a randomized pilot study. AB - OBJECTIVE: Psychosocial treatments for chronic abdominal pain in childhood or adolescence are effective, but time consuming and hardly available. In the present study, gut-directed hypnotherapy (GDHT) and unspecific hypnotherapy (UHT) were compared to evaluate the feasibility and efficacy of a hypnotherapeutic self help intervention. PARTICIPANTS AND METHODS: Children/adolescents between 6 and 17 years of age with chronic abdominal pain were randomized to GDHT or UHT. The treatment period was 12 weeks each. Measurements were performed before and after treatment. The primary outcome was a pain diary. Analysis was carried out as per protocol. RESULTS: Of 45 participants included, 13 were lost to follow-up. Thirty two participants (14 GHDT, 18 UHT) were analyzed. Dropouts had higher pain severity. Completers in both conditions showed good adherence and a similar decrease in days with pain and pain duration. Pain intensity decreased only in the UHT condition. Eleven participants (two GDHT, nine UHT) achieved clinical remission (>80% improvement) and 13 participants (seven GDHT, six UHT) improved significantly (30-80%). CONCLUSION: Results suggest a high efficacy of standardized home-based hypnotherapy for children/adolescents with abdominal pain. Children/adolescents with high pain severity are at risk of dropping out. The UHT condition showed slight evidence of superiority, but conditions were equivalent on most outcomes. Taken together, self-help approaches based on hypnotherapy could close a treatment gap and prevent chronification. PMID- 29023319 TI - Comparison of fenofibrate and pioglitazone effects on patients with nonalcoholic fatty liver disease. AB - INTRODUCTION: Nonalcoholic fatty liver disease (NAFLD) is known to be a health related problem; there is no proven treatment for NAFLD. However, a wide range of possible therapies have been proposed and studied. In the current study, we aimed to compare the therapeutic effects of fenofibrate and pioglitazone on NAFLD. PATIENTS AND METHODS: In this randomized clinical trial study (ethic number: ZUMS.REC.1393.133), patients with NAFLD and alanine aminotransferase in range of 1-1.5 folds of normal and BMI (25-35) were studied. Blood lipids and liver enzymes were measured. The patients were divided randomly into three groups (recipient of fenofibrate, pioglitazone, and exercise). After the patients completed the course of treatment, liver enzymes were measured. RESULTS: According to the results of this study, 90 patients with NAFLD were divided into three groups of 30 patients. All variables at the beginning of the study showed no significant difference among the three groups, but after the treatment period, the results showed that the levels of alanine aminotransferase, aspartate transaminase, systolic blood pressure, diastolic blood pressure, and BMI changed significantly: the levels decreased in all groups. CONCLUSION: This study showed beneficial effects of fenofibrate and pioglitazone in patients with fatty liver. Further studies with larger study populations on the effects of these drugs on fatty liver, lipid profile, blood glucose, and insulin are suggested. PMID- 29023320 TI - Favorable liver cancer mortality-to-incidence ratios of countries with high health expenditure. AB - OBJECTIVE: Health expenditure is a marker associated with an advanced healthcare system, which contributes toward the good prognosis of patients. Mortality-to incidence ratios (MIRs) are one of the predictors that reflect the prognosis of cancer patients. There remains some uncertainty on the correlation of MIRs of liver cancer with the health expenditure of countries. METHODS: We therefore analyzed the correlation of MIRs from the GLOBOCAN 2012 database with the WHO rankings and the total expenditures on health/gross domestic product from WHO by linear regression analyses. A total of 29 countries were selected in this study according to the data quality and the incidence number. RESULTS: The results showed high rates of incidence/mortality and MIRs in less developed regions (0.92 vs. 0.96 for more vs. less developed regions). Among the continents, Asia has the highest incidence/mortality in case number, crude rate, and age-standardized rate. In terms of the MIR, Northern America has the lowest MIR and Latin America and the Caribbean have the highest MIRs (0.82 and 1.04, respectively). Finally, favorable MIRs are associated significantly with good WHO ranking and high expenditures on gross domestic product (P=0.048 and 0.025, respectively). CONCLUSION: The MIR variation for liver cancer is thus found to be associated with the health expenditure and WHO ranking. PMID- 29023321 TI - Antipsychotic medication and oropharyngeal dysphagia: systematic review. AB - The association between antipsychotics (also known as neuroleptics) and oropharyngeal dysphagia (OD) has been suggested in several case reports. The purpose of this systematic review was to examine the effect of antipsychotic medication on OD. A systematic literature search was carried out according to PRISMA guidelines using the electronic databases Pubmed and Embase. In Pubmed, we used the MeSH terms 'antipsychotic agents' OR 'tranquilizing agents' combined with 'deglutition disorders' OR 'deglutition'. In Embase, we used the Emtree terms 'neuroleptic agents' combined with 'swallowing' OR 'dysphagia'. Two reviewers assessed the eligibility of each report independently. The level of evidence of the included studies was also assessed according to pre-established criteria. Case reports were excluded. We found 18 clinical studies of dysphagia related to antipsychotics: 12 were related both to typical and atypical antipsychotics, four to atypical antipsychotics and two to typical antipsychotics. According to the clinical studies included, prevalence of patients with swallowing problems taking antipsychotics ranged from 21.9 to 69.5% whereas prevalence of patients without swallowing problems taking antipsychotics ranged from 5 to 30.5%. The available evidence suggests considering an etiology of dysphagia in patients with swallowing problems who are taking antipsychotics, even if no other symptoms are present. Although few general conclusions can be drawn from current evidence, both typical and atypical antipsychotics can be associated with OD. PMID- 29023322 TI - Effects of Two Different Training Periodization Models on Physical and Physiological Aspects of Elite Female Team Handball Players. AB - Manchado, C, Cortell-Tormo, JM, and Tortosa-Martinez, J. Effects of two different training periodization models on physical and physiological aspects of elite female team handball players. J Strength Cond Res 32(1): 280-287, 2018-The aim of this study was to compare training-induced changes in selected physiological and physical team handball performance factors after 2 training periodization models: traditional periodization (TP) vs. block periodization (BP). Eleven female team handball players who played over 2 consecutive seasons for a Spanish first league team were assessed twice per season during a training cycle. On each occasion, participants completed anthropometric, maximal strength, and lower-body power assessments. In addition, incremental tests to determine maximum oxygen uptake (V[Combining Dot Above]O2max), sprint- and sport-specific throwing velocity tests were performed. Block periodization group experienced significantly greater improvements than TP on squat jump (5.97%; p < 0.001), countermovement jump (8.76%; p = 0.011), hand-grip strength (8.22%; p = 0.029), bench press 1 repetition maximum (1RM) (5.14%; p = 0.049), 10-m sprint (-6.19%; p < 0.001), and 20-m sprint (2.95%; p = 0.008). Greater changes in BP group (p <= 0.05) were also found for the throwing velocities in sport-specific tests compared with the TP group. No significant difference between the groups were detected for the half squat 1RM (p = 0.15) and the V[Combining Dot Above]O2max (p = 0.44). These findings suggest that BP may be more effective than TP for improving important physiological and physical team handball performance factors in high level female handball players. PMID- 29023323 TI - Optimizing inter-session reliability of heart rate variability - the effects of artefact correction and breathing type. AB - This study aimed to comprehensively investigate the reliability of multiple heart rate variability (HRV) parameters, and to explore the influence of artefact removal and breathing condition on HRV reliability. Resting HRV was collected using Polar Team monitors on forty-one participants (age: 19.9+/-1.2 years; 28 females, 13 males) during two separate days. Within each session, participants performed 10 minutes each of spontaneous and controlled breathing (randomized order). Kubios HRV analysis software was used to analyze 180s data epochs using "low" or "strong" artefact removal. Relative reliability was assessed using intraclass correlation coefficients (ICC2,1) and absolute reliability was quantified using mean-normalized standard error of measurement (SEM%). Time domain and nonlinear parameters produced poor to good inter-session agreement (ICC:0.34-0.68; SEM%: 11.0-39.0) with "low" artefact removal, regardless of breathing condition. Frequency domain parameters demonstrated fair inter-session agreement during controlled breathing (ICC:0.40-0.45; SEM%: 26.0-70.0), but poor agreement during spontaneous breathing (ICC:0.07-0.13; SEM%: 32.0-81.0). Minimal differences in ICCs were observed between "low" and "strong" artefact removal. Thus, this study provides three practical applications: 1) HRV monitoring is most reliable when using time domain and nonlinear parameters, regardless of breathing or filtering condition, but no single parameter is especially reliable. The large variation and poor inter-session reliability of frequency indices during spontaneous breathing are improved by controlling breathing rate; 2) "Low" artefact removal appears superior to more aggressive artefact removal; and 3) Inter-session differences in HRV measurements <30% may be indicative of normal daily variation rather than true physiologic changes. PMID- 29023324 TI - The physical response to a simulated period of soccer-specific fixture congestion. AB - The aim of this study was to assess the physiological, perceptual, and mechanical measures associated with the completion of a simulated period of short-term soccer-specific fixture congestion. Ten male semi-professional soccer players completed three trials of a treadmill-based match simulation, with 48 hours intervening each trial. A repeated measures general linear model identified significantly (P= 0.02) lower knee flexor peak torque (PT) recorded at 300 degs[BULLET OPERATOR]s in the second (141.27 +/- 28.51 Nm) and third trials (139.12 +/- 26.23 Nm) when compared to the first (154.17 +/- 35.25 Nm). Similarly, muscle soreness (MS) and PT data recorded at 60 degs[BULLET OPERATOR]s were significantly (P< 0.05) different in the third trial (MS= 42 +/- 25 a.u; PT60= 131.10 +/- 35.38 Nm) when compared to the first (MS= 29 +/- 29 a.u; PT60= 145.61 +/- 42.86 Nm). Significant (P= 0.003) differences were also observed for mean Bicep Femoris electromyography (EMGmean) between the third trial (T0-15= 126.36 +/- 15.57 uV; T75-90= 52.18 +/- 17.19 uV) and corresponding time points in the first trial (T0-15= 98.20 +/- 23.49 uV; T75-90= 99.97 +/- 39.81 uV). Cumulative increases in perceived exertion, heart rate, oxygen consumption, blood lactate concentrations, EMGmean, and PlayerLoad were recorded across each trial. MS and PT were also significantly different post-trial. There were however no significant main effects or interactions for the salivary Immunoglobulin A, and the medial-lateral PlayerLoad metrics. These data suggest a biomechanical and muscular emphasis with residual fatigue, with implications for injury risk and the development of recovery strategies. PMID- 29023325 TI - Performance and Health Related Characteristics of Male Athletes Using Marijuana. AB - The influence of chronic marijuana use on the performance and health of physically active individuals has yet to be fully elucidated. The purpose of this study was to explore pulmonary function, aerobic and anaerobic fitness, strength, serum testosterone, cortisol, C-reactive protein (CRP), Delta-9 tetrahydrocannibinol (THC), 11-nor-9-carboxy-Delta-9-tetrahydrocannibinol (THC COOH), and 11-hydroxy-Delta-9-tetrahydrocannibinol (THC-OH) concentrations in a physically active population either using or not using marijuana. Healthy, physically active males (N=24) were compared based on their marijuana use status: marijuana users (MU; n=12) and non-users (NU; n=12). Statistical analysis (p=0.05) revealed no difference between groups for age, body mass, body mass index, body fat, forced expiratory volume in 1-second percentage, VO2 max, anaerobic power output, strength measures, testosterone or cortisol concentrations. Although not statistically significant, MU showed a trend to fatigue to a greater percentage of absolute power output than NU from the beginning to end of the Wingate Anaerobic Power Assessment (p=0.08, ES=0.75). CRP in MU (1.76 +/- 2.81 mg/L) and NU (0.86 +/- 1.49 mg/L) was not significantly different (p=0.60), but placed MU at moderate risk and NU at low risk for cardiovascular disease. Anaerobic fatigue was the only performance variable to show a trend for difference between groups. These results suggest that marijuana use in physically active males may not have significant effects on performance; however, it may be linked to elevated concentrations of CRP which place users at a higher risk for cardiovascular disease. PMID- 29023326 TI - Combined effects of static stretching and electrical stimulation on joint range of motion and muscle strength. AB - The purpose of this study was to examine the effects of the combination of static stretching (SS) and electrical stimulation (ES) for 8 weeks on joint range of motion (ROM), muscle strength, and muscle architecture. Thirty-one subjects were divided into three groups: the SS combined with ES (SS+ES) group, SS group, or control group. The SS+ES group performed calf stretching simultaneously with ES to the gastrocnemius medialis, while the SS group performed calf stretching only. The training regimen consisted of four 30 sec sets of stretching, with 30 sec rest intervals, 3 days per week for 8 weeks. The control group did not perform any intervention exercise. Before and after training, measurements were taken to determine the ankle ROM, plantar flexion one repetition maximum strength, muscle thickness, pennation angle, and circumference of the lower leg. The results showed that 8 weeks of training led to significant improvements in the ankle ROM and muscle thickness in both the SS+ES and SS groups. There were significant increases in plantar flexion one repetition maximum strength and pennation angle in all three groups. For all parameters, there was no difference between the SS+ES and SS groups. These results clarify that 8 weeks of SS improves joint ROM and muscle thickness, and show that there is no additional benefit gained by combining ES with SS in this particular training regime. PMID- 29023327 TI - Sodium bicarbonate supplementation delays neuromuscular fatigue without changes in performance outcomes during a basketball match simulation protocol. AB - PURPOSE: To investigate the development of neuromuscular fatigue during a basketball game simulation and ascertain whether sodium bicarbonate (NaHCO3) supplementation attenuates any neuromuscular fatigue that persists. METHODS: Ten participants ingested 0.2 g.kg of NaHCO3 (or an equimolar placebo dosage of sodium chloride [NaCl]) 90 and 60 minutes prior to commencing a basketball game simulation (ALK-T vs PLA-T). Isometric maximal voluntary contractions of the knee extensors (MVIC) and potentiated high (100 Hz) and low (10 Hz) frequency doublet twitches were recorded before and after each match quarter for both trials. In addition, 15 m sprint times and layup completion (%) were recorded during each quarter. RESULTS: MVIC, 100 and 10 Hz twitch forces declined progressively in both trials (P<0.05) with a less pronounced decrease in MVIC during ALK-T (P<0.01). Both 100 and 10 Hz twitch forces were also significantly greater in ALK T (P<0.05). 15 m sprint time increased over the course of both trials (~2%, P<0.01); however, no significant condition or time effect was found for layup completion (P>0.05). CONCLUSION: A basketball simulation protocol induces a substantial amount of neuromuscular (reduction in knee extensor MVICs) and peripheral fatigue with a concomitant increase in 15 m sprint time over the protocol. NaHCO3 supplementation attenuated the rate of fatigue development by protecting contractile elements of the muscle fibres. PRACTICAL APPLICATIONS: This study provides coaches with information about the magnitude of fatigue induced by a simulated basketball game, and provides evidence of the efficacy of NaHCO3 in attenuating fatigue. PMID- 29023328 TI - Strength and Conditioning Habits of Competitive Distance Runners. AB - Blagrove, RC, Brown, N, Howatson, G, and Hayes, PR. Strength and conditioning habits of competitive distance runners. J Strength Cond Res XX(X): 000-000, 2017 Targeted strength and conditioning (S&C) programs can potentially improve performance and reduce injury risk factors in competitive runners. However, S&C practices of distance runners are unknown. This study aimed to explore S&C practices of competitive middle- and long-distance runners and examined whether reported frequency of injuries was influenced by training behaviors. One thousand eight hundred eighty-three distance runners (>=15 years old) completed an online survey. All runners who raced competitively were included in data analysis (n = 667). Distance runners mainly engaged with S&C activities to lower risk of injury (63.1%) and improve performance (53.8%). The most common activities used were stretching (86.2%) and core stability exercises (70.2%). Resistance training (RT) and plyometric training (PT) were used by 62.5 and 35.1% of runners, respectively. Junior (under-20) runners include PT, running drills, and circuit training more so than masters runners. Significantly more international standard runners engaged in RT, PT, and fundamental movement skills training compared with competitive club runners. Middle-distance (800-3,000 m) specialists were more likely to include RT, PT, running drills, circuit training, and barefoot exercises in their program than longer-distance runners. Injury frequency was associated with typical weekly running volume and run frequency. Strength and conditioning did not seem to confer a protection against the number of injuries the runners experienced. Practitioners working with distance runners should critically evaluate the current S&C practices of their athletes, to ensure that activities prescribed have a sound evidence-based rationale. PMID- 29023330 TI - Heart Rate Variability and Training Load Among National Collegiate Athletic Association Division 1 College Football Players Throughout Spring Camp. AB - Flatt, AA, Esco, MR, Allen, JR, Robinson, JB, Earley, RL, Fedewa, MV, Bragg, A, Keith, CM, and Wingo, JE. Heart rate variability and training load among National Collegiate Athletic Association Division 1 college football players throughout spring camp. J Strength Cond Res XX(X): 000-000, 2017-The purpose of this study was to determine whether recovery of cardiac-autonomic activity to baseline occurs between consecutive-day training sessions among positional groups of a collegiate football team during Spring camp. A secondary aim was to evaluate relationships between chronic (i.e., 4-week) heart rate variability (HRV) and training load parameters. Baseline HRV (lnRMSSD_BL) was compared with HRV after ~20 hours of recovery before next-day training (lnRMSSDpost20) among positional groups composed of SKILL (n = 11), MID-SKILL (n = 9), and LINEMEN (n = 5) with a linear mixed model and effect sizes (ES). Pearson and partial correlations were used to quantify relationships between chronic mean and coefficient of variation (CV) of lnRMSSD (lnRMSSD_chronic and lnRMSSDcv, respectively) with the mean and CV of PlayerLoad (PL_chronic and PL_cv, respectively). A position * time interaction was observed for lnRMSSD (p = 0.01). lnRMSSD_BL was higher than lnRMSSDpost20 for LINEMEN (p < 0.01; ES = large), whereas differences for SKILL and MID-SKILL were not statistically different (p > 0.05). Players with greater body mass experienced larger reductions in lnRMSSD (r = -0.62, p < 0.01). Longitudinally, lnRMSSDcv was significantly related to body mass (r = 0.48) and PL_chronic (r = -0.60). After adjusting for body mass, lnRMSSDcv and PL_chronic remained significantly related (r = -0.43). The ~20-hour recovery time between training sessions on consecutive days may not be adequate for restoration of cardiac-parasympathetic activity to baseline among LINEMEN. Players with a lower chronic training load throughout camp experienced greater fluctuation in lnRMSSD (i.e., lnRMSSDcv) and vice versa. Thus, a capacity for greater chronic workloads may be protective against perturbations in cardiac-autonomic homeostasis among American college football players. PMID- 29023329 TI - Living and Training at 825 m for 8 Weeks Supplemented With Intermittent Hypoxic Training at 3,000 m Improves Blood Parameters and Running Performance. AB - Wonnabussapawich, P, Hamlin, MJ, Lizamore, CA, Manimmanakorn, N, Leelayuwat, N, Tunkamnerdthai, O, Thuwakum, W, and Manimmanakorn, A. Living and training at 825 m for 8 weeks supplemented with intermittent hypoxic training at 3,000 m improves blood parameters and running performance. J Strength Cond Res 31(12): 3287-3294, 2017-We aimed to investigate the effect of an 8-week low-altitude training block supplemented with intermittent hypoxic training, on blood and performance parameters in soccer players. Forty university-level male soccer players were separated into altitude (n = 20, 825 m) or sea-level (n = 20, 125 m) groups. Before (1-2 days ago) and after (1 and 14 days later) training, players were asked to give a resting venous blood sample and complete a series of performance tests. Compared with sea level, the altitude group increased erythropoietin, red blood cell (RBC) count, and hematocrit 1 day after training (42.6 +/- 24.0%, 1.8 +/- 1.3%, 1.4 +/- 1.1%, mean +/- 95% confidence limits (CL), respectively). By 14 days after training, only RBC count and hemoglobin were substantially higher in the altitude compared with the sea-level group (3.2 +/- 1.8%, 2.9 +/- 2.1% respectively). Compared with sea level, the altitude group 1-2 days after training improved their 50-m (-2.9 +/- 1.4%) and 2,800-m (-2.9 +/- 4.4%) run times and demonstrated a higher maximal aerobic speed (4.7 +/- 7.4%). These performance changes remained at 14 days after training with the addition of a likely higher estimated V[Combining Dot Above]O2max in the altitude compared with the sea-level group (3.2 +/- 3.0%). Eight weeks of low-altitude training, supplemented with regular bouts of intermittent hypoxic training at higher altitude, produced beneficial performance improvements in team-sport athletes, which may increase the viability of such training to coaches and players that cannot access more traditional high altitude venues. PMID- 29023331 TI - Effects of Plyometric Training on Components of Physical Fitness in Prepuberal Male Soccer Athletes: The Role of Surface Instability. AB - Negra, Y, Chaabene, H, Sammoud, S, Bouguezzi, R, Mkaouer, B, Hachana, Y, and Granacher, U. Effects of plyometric training on components of physical fitness in prepuberal male soccer athletes: the role of surface instability. J Strength Cond Res 31(12): 3295-3304, 2017-Previous studies contrasted the effects of plyometric training (PT) conducted on stable vs. unstable surfaces on components of physical fitness in child and adolescent soccer players. Depending on the training modality (stable vs. unstable), specific performance improvements were found for jump (stable PT) and balance performances (unstable PT). In an attempt to combine the effects of both training modalities, this study examined the effects of PT on stable surfaces compared with combined PT on stable and unstable surfaces on components of physical fitness in prepuberal male soccer athletes. Thirty-three boys were randomly assigned to either a PT on stable surfaces (PTS; n = 17; age = 12.1 +/- 0.5 years; height = 151.6 +/- 5.7 cm; body mass = 39.2 +/- 6.5 kg; and maturity offset = -2.3 +/- 0.5 years) or a combined PT on stable and unstable surfaces (PTC; n = 16; age = 12.2 +/- 0.6 years; height = 154.6 +/- 8.1 cm; body mass = 38.7 +/- 5.0 kg; and maturity offset = -2.2 +/- 0.6 years). Both intervention groups conducted 4 soccer-specific training sessions per week combined with either 2 PTS or PTC sessions. Before and after 8 weeks of training, proxies of muscle power (e.g., countermovement jump [CMJ], standing long jump [SLJ]), muscle strength (e.g., reactive strength index [RSI]), speed (e.g., 20-m sprint test), agility (e.g., modified Illinois change of direction test [MICODT]), static balance (e.g., stable stork balance test [SSBT]), and dynamic balance (unstable stork balance test [USBT]) were tested. An analysis of covariance model was used to test between-group differences (PTS vs. PTC) at posttest using baseline outcomes as covariates. No significant between-group differences at posttest were observed for CMJ (p > 0.05, d = 0.41), SLJ (p > 0.05, d = 0.36), RSI (p > 0.05, d = 0.57), 20-m sprint test (p > 0.05, d = 0.06), MICODT (p > 0.05, d = 0.23), and SSBT (p > 0.05, d = 0.20). However, statistically significant between-group differences at posttest were noted for the USBT (p < 0.01, d = 1.49) in favor of the PTC group. For most physical fitness tests (except RSI), significant pre-to-post improvements were observed for both groups (p < 0.01, d = 0.55-3.96). Eight weeks of PTS or PTC resulted in similar performance improvements in components of physical fitness except for dynamic balance. From a performance-enhancing perspective, PTC is recommended for pediatric strength and conditioning coaches because it produced comparable training effects as PTS on proxies of muscle power, muscle strength, speed, agility, static balance, and additional effects on dynamic balance. PMID- 29023332 TI - Should T-Tube Drainage be Performed for Choledocholithiasis after Laparoscopic Common Bile Duct Exploration? A Systematic Review and Meta-Analysis of Randomized Controlled Trials. AB - BACKGROUND: Laparoscopic common bile duct exploration (LCBDE) has been verified to be a comparatively effective treatment approach for uncomplicated choledocholithiasis, and it has been previously proposed that the primary duct closure (PDC) technique, in which the bile duct can directly be sutured in only 1 step compared with the T-tube drainage (TTD), can be deemed a choice after LCBDE; however, the conventional TTD performance is controversial in the minimally invasive surgery era. On the basis of the above-mentioned point, this meta analysis was conducted to assess the different effects between TTD and PDC after LCBDE. MATERIALS AND METHODS: In PubMed, EMBASE, and the Cochrane Library, literature search was conducted to screen out randomized controlled trials (RCTs) to compare PDC with TTD. The analyzed outcome variables included overall morbidity, biliary-specific morbidity (retained stones, biliary leak, biliary peritonitis), other morbidities, operating time, postoperative hospital stay, reintervention (surgery, endoscopy/radiology), and median hospital expenses. RESULTS: In this meta-analysis, there are 4 RCTs qualifying for inclusion, including 396 patients in all (222 in PDC and 214 in TTD). With respect to postoperative overall morbidity (P<0.05), biliary peritonitis (P<0.05), surgery time (P<0.05), length of stay (P<0.05), and median hospital expenses (P<0.05), PDC presented remarkably better results than TTD (P<0.05). Statistically, no remarkable distinction was found between the 2 groups as to biliary-specific morbidity, retained stones, biliary leak, other morbidities, or reintervention (radiology/endoscopy, surgery). CONCLUSIONS: In this meta-analysis, there was no evidence provided for clinical benefits of using TTD after LCBDE. Therefore, TTD should not routinely be performed after LCBDE. However, multicenter, large sample size, RCTs should be conducted to clarify this issue. PMID- 29023333 TI - Clinical Indicators of Postoperative Bleeding in Bariatric Surgery. AB - The purpose of this study was to evaluate the relationship between patient, clinical and laboratory characteristics, and bleeding after bariatric surgery. A retrospective chart review was performed for all patients, who underwent a laparoscopic Roux-en-Y gastric bypass and laparoscopic sleeve gastrectomy at our institution between March 2012 and May 2014. In total, 788 patients were included in this study. Seventeen patients had postoperative bleeding. The demographics, comorbidities, and preoperative medications were similar between the groups. Mean postoperative hemoglobin in the bleeding group was significantly lower (94 vs. 126; P<0.001) with a larger decrease from the baseline value (-43 vs. -12; P<0.001). The mean heart rate (91 vs. 81; P<0.001) and its increase from baseline (12 vs. -0.01; P<0.001) were significantly different in the bleeding patients. Postoperative hemoglobin and heart rate were associated with bleeding but not systolic blood pressure or patient characteristics. Further research is needed to develop a robust predictive model. PMID- 29023335 TI - Radioprotective effect of lycopene on the gastrointestinal tract after high-dose radioiodine administration in rat models. AB - PURPOSE: The aim of this study was to evaluate the effect of lycopene against radioactive iodine (RAI)-related gastrointestinal tract acute damage in a rat model as a novel radioprotective agent. MATERIALS AND METHODS: Twenty Wistar albino rats were divided into two equal groups: group 1 was administered only RAI and group 2 was administered RAI and lycopene. All rats were killed 24 h after the last administration of the agents and the gastrointestinal tract organs were removed surgically for histopathological examination. RESULT: The presence of lamina propria edema in the duodenum (P=0.003) and ileum (P=0.02), ulcer in the duodenum (P=0.033), mucosal erosion in the stomach (P=0.001), mucosal degeneration in stomach (P=0.02) and colon (P=0.02), necrosis in all tissues (P value for stomach=0.005, duodenum=0.001, ileum=0.001, colon=0.001), inflammation in those tissues (P value for; stomach=0.003, duodenum=0.02, ileum=0.011, colon=0.033), and fibrosis in those tissues (P value for; stomach=0.02, duodenum=0.003, ileum=0.003, colon=0.001) were statistically less frequently observed in the lycopene group compared with the RAI group. CONCLUSION: As a first study assessing the protective effect of lycopene on gastrointestinal tract organs in a rat model after RAI, these preliminary basic research findings suggest that lycopene appears to exert radioprotective effects against RAI induced acute gastrointestinal tract damage. PMID- 29023334 TI - Application of Enhanced Recovery After Surgery in Single-incision Laparoscopic Distal Gastrectomy. AB - BACKGROUND: Recently, enhanced recovery after surgery (ERAS) was widely used in the perioperative management of gastric cancer. The study aimed to evaluate the safety and effectiveness of ERAS in single-incision laparoscopic distal gastrectomy (SIDG). MATERIALS AND METHODS: A total of 90 patients who received laparoscopic gastric cancer resection were divided into 3 groups: group A (n=30), underwent traditional multiport laparoscopic distal gastrectomy with conventional perioperative management; group B (n=30) underwent traditional multiport laparoscopic distal gastrectomy with ERAS concept; and group C (n=30), underwent SIDG with ERAS concept. Clinical data and gut function were assessed in 3 groups. RESULTS: There were no significant differences in terms of postoperative complication, number of resected lymph nodes and blood loss among 3 groups. However, operation time was longer (P=0.003) and treatment cost was higher (P<0.001) in group C than that in group A and B. Group C had faster recovery of bowel function (P<0.001), shorter postoperative hospital stay (P=0.002), and less postoperative complication (P=0.044) than those in group A. There were no significant differences in terms of recovery of bowel function and postoperative hospital stay between group C and B (all P>0.05). The white blood cell counts were lower than group A and B (all P<0.05) and C-reactive protein in group C were lower than group A (P<0.05) and B (P>0.05). CONCLUSIONS: The findings suggest that SIDG with ERAS may be a feasible and safe procedure for early gastric cancer because it provides a favorable cosmetic result while not compromising postoperative complications, number of resected lymph nodes, and blood loss. PMID- 29023336 TI - Correlation between functional imaging markers derived from diffusion-weighted MRI and 18F-FDG PET/CT in esophageal cancer. AB - OBJECTIVE: Both the apparent diffusion coefficient (ADC) acquired by diffusion weighted magnetic resonance imaging (DW-MRI) and the standardized uptake value (SUV), acquired by F-fluorodeoxyglucose positron emission tomography/computed tomography (F-FDG PET/CT), are well-established functional parameters in cancer imaging. Currently, it is unclear whether these two markers provide complementary prognostic and predictive information in esophageal cancer. The aim of this study was to evaluate the correlation between ADC and SUV in patients with esophageal cancer. MATERIALS AND METHODS: This prospective study included 76 patients with histologically proven esophageal cancer who underwent both DW-MRI and F-FDG PET/CT examinations before treatment. The minimum and mean ADC values (ADCmin and ADCmean) of the primary tumor were assessed on MRI. Similarly, the glucose metabolism was evaluated by the maximum and mean SUV (SUVmax and SUVmean) in the same lesions on F-FDG PET/CT images. Spearman's rank correlation coefficients were used to assess the correlation between tumor ADC and SUV values. RESULTS: The tumor ADC and SUV values as measures of cell density and glucose metabolism, respectively, showed negligible nonsignificant correlations (ADCmin vs. SUVmax: r=-0.087, P=0.457; ADCmin vs. SUVmean: r=-0.105, P=0.369; ADCmean vs. SUVmax: r= 0.099, P=0.349; ADCmean vs. SUVmean: r=-0.111, P=0.340). No differences in tumor ADC and SUV values were observed between the different histologic tumor types, stages, and differentiation grades. CONCLUSION: This study indicates that tumor cellularity derived from DW-MRI and tumor metabolism measured by F-FDG PET/CT are independent cellular phenomena in newly diagnosed esophageal cancer. Therefore, tumor ADC and SUV values may play complementary roles as imaging markers in the prediction of survival and evaluation of response to treatment in esophageal cancer. PMID- 29023337 TI - Recommendations for a Clinical Decision Support System for Work-Related Asthma in Primary Care Settings. AB - OBJECTIVE: The aim of this study was to describe a recommended clinical decision support (CDS) approach for work-related asthma for incorporation in electronic health records (EHRs) for primary care health care providers. METHODS: Subject matter experts convened by the American Thoracic Society reviewed available guidelines and published literature to develop specific recommendations. RESULTS: It is important to recognize possible work-related asthma among persons with new onset or worsening asthma. The work group recommends incorporating three simple questions about temporal relations between asthma symptoms and work in EHR systems and identified specific clinical conditions to trigger this intervention. Patients with positive responses to the three questions should have the asthma diagnosis documented and have further evaluation, education, and possible referral. CONCLUSION: An effective CDS system for improving recognition of work related asthma may help reduce morbidity and mortality of asthma in adults. PMID- 29023338 TI - Using Electronic Health Records and Clinical Decision Support to Provide Return to-Work Guidance for Primary Care Practitioners for Patients With Low Back Pain. AB - OBJECTIVE: The aim of this study was to describe the process by which a group of subject matter experts in the area of return to work developed a resource tool to provide clinical decision support (CDS) for primary care clinicians. METHODS: A common musculoskeletal disorder, low back pain (LBP), was selected, pertinent literature reviewed, and specific recommendations for action in the clinical setting developed. RESULTS: Primary care practitioners (PCPs) are routinely expected to create work activity prescriptions. The knowledge base for a CDS tool that could be embedded in electronic health records has been developed. CONCLUSION: Improved clinical support should help prevent and manage work limitations associated with LBP not caused by work. The proposed decision support should reduce administrative burden and stimulate PCPs to explore the role of occupation and its demands on patients. PMID- 29023339 TI - Managerial Quality and Risk of Depressive Disorders Among Danish Eldercare Workers: A Multilevel Cohort Study. AB - OBJECTIVE: To examine whether low managerial quality predicts risk of depressive disorders. METHODS: Using multilevel mixed-effects logistic regression analyses we examined the prospective association of individual-level and workplace-mean managerial quality with onset of depressive disorders among 5244 eldercare workers from 274 workplaces during 20 months follow-up. RESULTS: Low managerial quality predicted onset of depressive disorders in both the individual-level (odds ratio [OR] = 1.85, 95% confidence interval [CI] = 1.25 to 2.76) and the workplace-mean analysis (OR = 1.48, 95% CI = 1.06 to 2.07). Low individual-level managerial quality predicted onset of depressive disorders when workplace-mean managerial quality was high (OR = 3.10, 95% CI = 1.71 to 5.62) but not when it was low (OR = 1.07, 95% CI = 0.61 to 1.87). This interaction was statistically significant (P = 0.03). CONCLUSIONS: Both low individual-level and low workplace mean managerial quality predicted risk of depressive disorders. The association was strongest among individuals reporting low managerial quality at workplaces with high workplace-mean managerial quality. PMID- 29023341 TI - Development and Validation of the Work-Related Well-Being Index: Analysis of the Federal Employee Viewpoint Survey (FEVS). AB - OBJECTIVE: To describe development and validation of the Work-Related Well-Being (WRWB) Index. METHODS: Principal Components Analysis was performed using Federal Employee Viewpoint Survey (FEVS) data (N = 392,752) to extract variables representing worker well-being constructs. Confirmatory factor analysis was performed to verify factor structure. To validate the WRWB index, we used multiple regression analysis to examine relationships with burnout associated outcomes. RESULTS: PCA identified three positive psychology constructs: "Work Positivity", "Co-worker Relationships", and "Work Mastery". An 11 item index explaining 63.5% of variance was achieved. The structural equation model provided a very good fit to the data. Higher WRWB scores were positively associated with all 3 employee experience measures examined in regression models. CONCLUSIONS: The new WRWB index shows promise as a valid and widely accessible instrument to assess worker well-being. PMID- 29023342 TI - Flexible Work: The Impact of a New Policy on Employees' Sedentary Behavior and Physical Activity. AB - OBJECTIVE: The aim of the study was to assess change in physical activity (PA) and sedentary behavior (SB) in office-based employees after the implementation of a flexible work policy that allowed working at home. METHODS: A total of 24 employees (62% female; 40 +/- 10 years) completed an online questionnaire 4 weeks pre- and 6 weeks post-implementation of the policy. Changes in PA and SB were assessed using Wilcoxon signed rank test. RESULTS: There were no changes in PA after the introduction of the flexible work policy (Z = -0.29, P > 0.05). Sitting time increased on days the employees worked at home (Z = -2.02, P > 0.05) and on days they worked at the office (Z = -4.16, P > 0.001). CONCLUSIONS: A flexible work policy may have had a negative impact on sedentary behavior in this workplace. Future work is needed to explore the potential impact on workplace sitting time. PMID- 29023340 TI - Associations Between Disinfection By-Product Exposures and Craniofacial Birth Defects. AB - OBJECTIVE: The aim of this study was to examine associations between craniofacial birth defects (CFDs) and disinfection by-product (DBP) exposures, including the sum of four trihalomethanes (THM4) and five haloacetic acids (HAA5) (ie, DBP9). METHODS: We calculated first trimester adjusted odds ratios (aORs) for different DBPs in a matched case-control study of 366 CFD cases in Massachusetts towns with complete 1999 to 2004 THM and HAA data. RESULTS: We detected elevated aORs for cleft palate with DBP9 (highest quintile aOR = 3.52; 95% CI: 1.07, 11.60), HAA5, trichloroacetic acid (TCAA), and dichloroacetic acid. We detected elevated aORs for eye defects with TCAA and chloroform. CONCLUSION: This is the first epidemiological study of DBPs to examine eye and ear defects, as well as HAAs and CFDs. The associations for cleft palate and eye defects highlight the importance of examining specific defects and DBPs beyond THM4. PMID- 29023344 TI - Biometric Screening and Future Employer Medical Costs: Is It Worth It to Know? AB - OBJECTIVE: To study the relationship between a biometric wellness data and future/actual medical costs. METHODS: A relationship between total cholesterol to high density lipoprotein ratio, blood pressure, and blood glucose and medical costs, based on analysis of claims data, was explored in 1834 employees that had both wellness program biometric and claims data in 2016. RESULT: Increased total cholesterol to HDL ratio is strongly associated with increased average costs (P < 0.01). Similarly, an increased glucose level is strongly associated with increased average costs (P = 0.001). There was no evidence of a relationship between elevated blood pressure and higher costs. CONCLUSIONS: By investing in an employer-sponsored biometric screening of full cholesterol and glucose profiles, medium-sized employers can identify high-risk employees who are expected to incur significantly higher healthcare costs, as compared with low-risk level employees, and improve treatment outcomes. PMID- 29023343 TI - Pesticide Urinary Metabolites Among Latina Farmworkers and Nonfarmworkers in North Carolina. AB - OBJECTIVES: This paper compares detections and concentrations of pesticide urinary metabolites for Latina farmworkers and nonfarmworkers in North Carolina. METHODS: Thirty-one farmworkers and 55 nonfarmworkers provided urine samples in 2012 and 2013. Urine samples were analyzed for detections and concentrations of organophosphate insecticide, bis-dithiocarbamate fungicide, and pyrethroid insecticide urinary metabolites. RESULTS: Detections for several organophosphate and pyrethroid pesticide urinary metabolites were present for substantial proportions of the farmworkers and nonfarmworkers. Concentrations for several of these metabolites were high. Farmworkers and nonfarmworkers were similar in detections and concentrations for the pesticide urinary metabolites included in this analysis. CONCLUSIONS: Participant pesticide exposure increases health risks for them and their children. Research needs to document pesticide exposure, its health effects, and ways to reduce it. Current information justifies policy development to reduce pesticide exposure in all communities. PMID- 29023345 TI - Exploring Associations Between Postural Balance and Levels of Urinary Organophosphorus Pesticide Metabolites. AB - OBJECTIVE: Apply a data-driven approach to explore associations between postural balance and pesticide exposure among Latino farmworkers and non-farmworkers. METHODS: Lasso-regularized, generalized linear models were used to examine associations between postural control measures in four experimental conditions (2 visual * 2 cognitive difficulty) and dialkylphosphate (DAP) urinary metabolite levels. RESULTS: Obtained models generally performed poorly at explaining postural control measures. However, when both visual and cognitive conditions were altered-the most challenging balance condition-models for some postural balance measures contained several DAP metabolites and had relatively better fits. CONCLUSIONS: The current results were equivocal regarding associations between postural control measures and DAP metabolite concentrations. However, farmworker status appears to be an important variable in understanding this association. Future work should use a posturally- and cognitively-challenging test condition to reveal any potential associations. PMID- 29023347 TI - Teicoplanin-Should We Be Doing Routine Therapeutic Drug Monitoring in Children? PMID- 29023346 TI - Influenza Vaccination Rate and Reasons for Nonvaccination in Children With Cardiac Disease. AB - BACKGROUND: Influenza is a major cause of respiratory morbidity worldwide. It poses a risk of complications in children with cardiac disease. Influenza vaccine is considered the most effective and safe means of preventing the disease. The aims of this study were to determine the rate of influenza vaccination in children with cardiac disease and to identify the reasons for failure to vaccinate in this patient population. METHODS: The study group included 186 children and their parents who attended the cardiology institute of a tertiary pediatric medical center between September and October 2012. Parents were asked to complete a questionnaire covering demographics, clinical features, influenza vaccination, receipt of advice from medical professionals regarding vaccination and personal knowledge about and attitude toward the influenza vaccine. RESULTS: Median age of the children was 7.6 years. Thirty-six percent had been vaccinated in the previous influenza season. Vaccination was unrelated to the child's age or sex or the parents' education. Factors significantly affecting the decision of the parents to have their child vaccinated were their knowledge, beliefs and conceptions about the vaccine and their receipt of a recommendation to do so from the pediatrician or cardiologist (P < 0.001). CONCLUSIONS: The rate of vaccination against influenza is low in children with heart disease. Major factors encouraging vaccination are proper parental knowledge and the recommendation of the primary physician or cardiologist. Medical professionals caring for this patient population should be alerted to the need to routinely counsel parents on the importance of influenza vaccination. PMID- 29023348 TI - Denouement. PMID- 29023349 TI - Minimally Invasive Redo Mitral Valve Replacement Using a Robotic-Assisted Approach. AB - Minimally invasive, robotic-assisted cardiac surgery has been shown to decrease transfusion rates, decrease wound infection rates, shorten hospital length of stay, and allow for a faster return to full activity compared with traditional sternotomy approaches. However, its application has chiefly been limited to primary, isolated procedures such as primary mitral valve repair or replacement. We describe the first reported use of a robotic surgery platform to perform reoperative mitral valve replacement using a minimally invasive, totally endoscopic, port-access approach. PMID- 29023350 TI - An Artificial Cadaveric Leg Blood Flow System for Endoscopic Vein Harvesting Simulation. AB - Despite being the most common training model for endoscopic vein harvesting, cadaveric legs are limited by their absence of blood flow, resulting in a faded vascular appearance. Because the saphenous vein and the surrounding tissue seem less distinguishable, dissection of the saphenous vein and bipolar coagulation of its branches becomes increasingly inefficient and difficult. An inexpensive artificial blood flow system was developed to overcome this limitation. A cadaveric leg was thawed to a soft and yielding degree, and the saphenous vein was dissected medial and proximal to the medial malleolus. An artificial blood solution was prepared by dissolving 4% protein powder, red dye, and a contrast agent-for x-ray visualization-in saline. The solution was perfused through the saphenous vein and artery. The open ends of the vessels were temporarily clamped after the perfusion had been completed. Blood flow within the vessels was confirmed via angiography and endoscopic visualization of the leg's vessels. A bleeding effect was observed when the saphenous vein was perforated or when a vascular branch was transected. Conversely, a tight seal indicated successful bipolar coagulation of a branch, providing an objective, quantifiable assessment parameter. The artificial blood flow system helps overcome the limitations of the cadaveric leg, creating a more realistic and inexpensive model for endoscopic vein harvesting simulation training. PMID- 29023351 TI - Rapid Deployment Aortic Valves Deliver Superior Hemodynamic Performance In Vitro. AB - OBJECTIVE: Clinical studies have demonstrated excellent hemodynamic performance of rapid deployment aortic valves; however, few studies have directly compared the performance of these valves with conventional bioprosthetic valves. Thus, the hemodynamic function of the EDWARDS INTUITY valve (rapid deployment valve) was compared with the Edwards Magna Ease valve in vitro (Edwards Lifesciences Corp, Irvine, CA USA). METHODS: Elastomeric material was used to create an aortic root model that included a left ventricular outflow tract and aortic annulus. The model was based on reconstructions from 3-dimensional multislice computed tomography images in patients with aortic stenosis; the aortic root was scaled to a 21-mm effective annulus diameter. EDWARDS INTUITY valves (21-mm diameter) were deployed by stent frame expansion within the aortic root; Edwards Magna Ease valves (21-mm diameter) were sutured to the annulus. The left ventricular outflow tract area index (left ventricular outflow tract area/baseline area) and ellipticity or noncircularity as indexed by Dmax/Dmin were measured under a video microscope after valve placement. Hemodynamic data were collected under pulsatile flow with saline (70 beats per minute, 5 L/min, 100 mm Hg aortic pressure). RESULTS: Compared with the Edwards Magna Ease valve (n = 4), the EDWARDS INTUITY valve (n = 4) had a greater effective orifice area (1.56 +/- 0.01 vs 1.85 +/- 0.06 cm, P < 0.001) and a lower transvalvular pressure gradient (23.4 +/- 0.51 vs 16.8 +/- 1.3 mm Hg, P < 0.001). Multiple regression analysis showed that 93% of the variation in the effective orifice area and transvalvular pressure gradient was due to variation in the left ventricular outflow tract area index and ellipticity index. CONCLUSIONS: A clinically relevant aortic root model was developed to evaluate aortic valve performance. The superior performance of the EDWARDS INTUITY valve seemed to be related to both a greater inflow area and a more circular left ventricular outflow tract. PMID- 29023352 TI - Novel Sternal Protection Device for Cardiac Surgery Via Median Sternotomy Incision. AB - OBJECTIVE: Sternal bleeding during cardiac surgery is currently controlled using bone wax or other chemical substances that may result in adverse effects and affect wound healing and recovery. The purpose of this study was to identify a safe, cost-effective, and easy-to-use technique to reduce sternal bleeding and sternal trauma during cardiac surgery. METHODS: After sternotomy, a sternal protection device was placed over each hemisternal section before insertion of the retractor and remained in situ until the end of surgery. Sternal bleeding and ease of use were assessed and recorded during surgery. Sternal trauma was assessed and recorded within 5 minutes of removal of the device, and overall satisfaction (Global Impression) and any intraoperative adverse events or device malfunction were reported at surgery completion. Patients were followed up 24 hours and 4 weeks after surgery. RESULTS: Twelve patients completed the study. Adverse events reported were not considered related to the device. No sternal trauma was identified in any patient. In 9 of 11 patients, sternal bleeding was reduced after insertion of the device. The device was generally considered easy to use, although some difficulty was encountered when used with the Internal Mammary Artery retractor. CONCLUSIONS: Our data suggest that the device is safe and able to reduce sternal bleeding during surgery using sternal retractors. We recommend further studies in a larger population of patients with a control group to evaluate the device's ability to reduce the morbidity associated with sternal bleeding and sternal trauma. PMID- 29023354 TI - Effects of Hypercapnia on Acute Cellular Rejection after Lung Transplantation in Rats. AB - BACKGROUND: Hypercapnia alleviates pulmonary ischemia-reperfusion injury, regulates T lymphocytes, and inhibits immune reaction. This study aimed to evaluate the effect of hypercapnia on acute cellular rejection in a rat lung transplantation model. METHODS: Recipient rats in sham-operated (Wistar), isograft (Wistar to Wistar), and allograft (Sprague-Dawley to Wistar) groups were ventilated with 50% oxygen, whereas rats in the hypercapnia (Sprague-Dawley to Wistar) group were administered 50% oxygen and 8% carbon dioxide for 90 min during reperfusion (n = 8). Recipients were euthanized 7 days after transplantation. RESULTS: The hypercapnia group showed a higher oxygenation index (413 +/- 78 vs. 223 +/- 24), lower wet weight-to-dry weight ratio (4.23 +/- 0.54 vs. 7.04 +/- 0.80), lower rejection scores (2 +/- 1 vs. 4 +/- 1), and lower apoptosis index (31 +/- 6 vs. 57 +/- 4) as compared with the allograft group. The hypercapnia group showed lower CD8 (17 +/- 4 vs. 31 +/- 3) and CD68 (24 +/- 3 vs. 43 +/- 2), lower CD8 T cells (12 +/- 2 vs. 35 +/- 6), and higher CD4/CD8 ratio (2.2 +/- 0.6 vs. 1.1 +/- 0.4) compared to the allograft group. Tumor necrosis factor-alpha (208 +/- 40 vs. 292 +/- 49), interleukin-2 (30.6 +/- 6.7 vs. 52.7 +/ 8.3), and interferon-gamma (28.1 +/- 4.9 vs. 62.7 +/- 10.1) levels in the hypercapnia group were lower than those in allograft group. CD4, CD4 T cells, and interleukin-10 levels were similar between groups. CONCLUSIONS: Hypercapnia ameliorated acute cellular rejection in a rat lung transplantation model. PMID- 29023355 TI - Utility of Mobile Communication Devices as a Tool to Improve Adherence to Antiretroviral Treatment in HIV-infected Children and Young Adults in Argentina. AB - BACKGROUND: Optimal adherence is critical to achieve the benefits of antiretroviral treatment (ART). The aim of the study is to evaluate the use of mobile devices as a strategy to improve adherence to ART, measured by viral load (VL) in HIV+ patients less than 25 years of age. METHODS: A prospective study was conducted in a cohort of HIV+ patients less than 25 years of age. HIV+ patients, on ART, VL >1000 copies/mL, using mobile devices and suboptimal adherence were included. The intervention was based on a mobile generic contact twice a month using text message and Facebook during 32 weeks. Extended communications were generated by the patient. VL was performed before and after the intervention. RESULTS: Twenty-five patients were included. Three were excluded and 22 patients were enrolled. Mean age was 17.2 +/- 6.1 years (range: 6-25); 15 (68%) were female; mean baseline VL was 25,100 copies/mL (range: 1020-500,000 copies/mL), mean log was 4.3 (range: 3-5.7 log). Each participant received a total of 16 contacts; 84% (296) were answered by the patient and 54% (189) of the contacts generated extended communications. After the strategy implementation, 20/22 VL results were available: 13/20 (65%) were undetectable, 14/20 (70%) had VL < 1000 copies/mL and 6/20 (30%) VLs had no changes. CONCLUSIONS: The use of mobile devices and social networks is a valid tool to improve ART adherence in HIV+ pediatric and young adults, evaluated through VL. The strategy is feasible. The reminder messages trigger additional communications between patients and health provider and better engagement with HIV care. Longer follow-up time is needed. PMID- 29023356 TI - Point-of-care Testing in Pediatric Infectious Diseases. PMID- 29023353 TI - Staged Repair of a Ruptured Thoracic Aortic Aneurysm Having an Aorto-Parenchymal Fistula. AB - Ruptured thoracic aortic aneurysms, having aorto-bronchial or pulmonary parenchymal fistulations, are life-threatening conditions, and current surgical treatment results are not satisfactory. Herein, we describe a 69-year-old man with a ruptured thoracic aortic aneurysm and aorto-pulmonary parenchymal fistulation that was successfully treated using a staged repair. The first stage involved an emergency thoracic endovascular aortic repair for salvage and the second stage involved radical pulmonary parenchymal repair with removal of the stent graft and aortic reconstruction for long-term survival. PMID- 29023357 TI - Pharmacokinetics, Safety and Efficacy of Maraviroc in Treatment-experienced Pediatric Patients Infected With CCR5-Tropic HIV-1. AB - BACKGROUND: Maraviroc is a CC-chemokine receptor 5 antagonist approved to treat adults infected with CC-chemokine receptor 5-tropic (R5) HIV-1. Study A4001031 was conducted to evaluate the pharmacokinetics, safety and efficacy of maraviroc in combination with optimized background therapy in treatment-experienced pediatric patients infected with R5 HIV-1 and support registration of maraviroc for pediatric use. METHODS: This is an open-label, 2-stage, age-stratified, noncomparative multicenter study. One-hundred and three participants were enrolled into 4 age/formulation cohorts and dosed twice daily. Initial doses were determined by body surface area and optimized background therapy, based on drug interactions with maraviroc in adults. Dose adjustment and pharmacokinetic reevaluation occurred if the average concentrations (Cavg) at Week 2 were <100 ng/mL (Stage 1-dose finding). RESULTS: Data from the Week 48 analysis demonstrated that 49/50 Stage 1 participants rolling over into Stage 2 (safety and efficacy) achieved Cavg >=100 ng/mL. Doses were identified that achieved similar concentration ranges to those seen in adults. The majority (90/103) received optimized background therapy containing potent cytochrome P450 3A inhibitors. Maraviroc was well tolerated and the safety and efficacy were comparable to those of adults. All cohorts had a mean decrease from baseline in HIV-1 RNA of >1 log10. Increases from baseline in the median CD4+ cell count and percentage were seen for all age groups. CONCLUSIONS: The maraviroc dosing strategy resulted in participants achieving the target Cavg, with exposure ranges similar to those observed in adults on approved doses. The safety and efficacy of maraviroc in this pediatric population were comparable to those seen in adults. PMID- 29023358 TI - Wrist Acceleration Cut Points for Moderate-to-Vigorous Physical Activity in Youth. AB - PURPOSE: This study aimed to examine the validity of wrist acceleration cut points for classifying moderate (MPA), vigorous (VPA), and moderate-to-vigorous (MVPA) physical activity. METHODS: Fifty-seven children (5-12 yr) completed 15 semistructured activities. Three sets of wrist cut points (>192 mg, >250 mg, and >314 mg), previously developed using Euclidian norm minus one (ENMO192+), GENEActiv software (GENEA250+), and band-pass filter followed by Euclidian norm (BFEN314+), were evaluated against indirect calorimetry. Analyses included classification accuracy, equivalence testing, and Bland-Altman procedures. RESULTS: All cut points classified MPA, VPA, and MVPA with substantial accuracy (ENMO192+: kappa = 0.72 [95% confidence interval = 0.72-0.73], MVPA: area under the receiver operating characteristic curve (ROC-AUC) = 0.85 [0.85-0.86]; GENEA250+: kappa = 0.75 [0.74-0.76], MVPA: ROC-AUC = 0.85 [0.85-0.86]; BFEN314+: kappa = 0.73 [0.72-0.74], MVPA: ROC-AUC = 0.86 [0.86-0.87]). BFEN314+ misclassified 19.7% non-MVPA epochs as MPA, whereas ENMO192+ and GENEA250+ misclassified 32.6% and 26.5% of MPA epochs as non-MVPA, respectively. Group estimates of MPA time were equivalent (P < 0.01) to indirect calorimetry for the BFEN314+ MPA cut point (mean bias = -1.5%, limits of agreement [LoA] = -57.5% to 60.6%), whereas estimates of MVPA time were equivalent (P < 0.01) to indirect calorimetry for the ENMO192+ (mean bias = -1.1%, LoA = -53.7% to 55.9%) and GENEA250+ (mean bias = 2.2%, LoA = -56.5% to 52.2%) cut points. Individual variability (LoA) was large for MPA (min: BFEN314+, -60.6% to 57.5%; max: GENEA250+, -42.0% to 104.1%), VPA (min: BFEN314+, -238.9% to 54.6%; max: ENMO192+, -244.5% to 127.4%), and MVPA (min: ENMO192+, -53.7% to 55.0%; max: BFEN314+, -83.9% to 25.3%). CONCLUSION: Wrist acceleration cut points misclassified a considerable proportion of non-MVPA and MVPA. Group-level estimates of MVPA were acceptable; however, error for individual-level prediction was larger. PMID- 29023359 TI - Menstrual Disruption with Exercise Is Not Linked to an Energy Availability Threshold. AB - INTRODUCTION: Chronic reductions in energy availability (EA) suppress reproductive function. A particular calculation of EA quantifies the dietary energy remaining after exercise for all physiological functions. Reductions in luteinizing hormone pulse frequency have been demonstrated when EA using this calculation is <30 kcal.kg.fat-free mass (ffm).d. PURPOSE: We determined whether menstrual disturbances (MD) are induced when EA is <30 kcal.kg ffm.d. METHODS: Thirty-five sedentary, ovulatory women age 18 to 24 yr (weight, 59.0 +/- 0.8 kg; body mass index, 21.8 +/- 0.4 kg.m) completed a diet and exercise intervention over three menstrual cycles. Participants were randomized to groups that varied in the magnitude of negative energy balance created by the combination of exercise and energy restriction. Menstrual disturbances were determined using daily urinary estrone-1-glucuronide and pregnanediol glucuronide, midcycle luteinizing hormone, and menstrual calendars. In a secondary analysis, we calculated EA from energy balance data and tested the association of EA with MD. RESULTS: A generalized linear mixed-effects model showed that the likelihood of a MD decreased by 9% for each unit increase in EA (odds ratio, 0.91; 95% confidence interval, 0.84-0.98; P = 0.010). No specific value of EA emerged as a threshold below which MD were induced. When participants were partitioned into EA tertile groups (low EA, 23.4-34.1; n = 11; moderate EA, 34.9-40.7; n = 12, and high EA, 41.2-50.1; n = 12 [kcal.kg ffm.d]), estrone-1-glucuronide (P < 0.001), pregnanediol glucuronide (P < 0.001), and luteal phase length (P = 0.031) decreased significantly, independent of tertile. CONCLUSIONS: These findings do not support that a threshold of EA exists below which MD are induced but do suggest that MD increase linearly as EA decreases. Menstrual disturbances can likely be prevented by monitoring EA using a simplified assessment of metabolic status. PMID- 29023361 TI - Procalcitonin and MR-Proadrenomedullin Combination with SOFA and qSOFA Scores for Sepsis Diagnosis and Prognosis: A Diagnostic Algorithm. AB - PURPOSE: The third Consensus Definitions for Sepsis and Septic Shock (Sepsis-3) defined sepsis as an organ dysfunction consequent to infection. A Sequential Organ Failure Assessment (SOFA) score at least 2 identifies sepsis. In this study, procalcitonin (PCT) and midregional pro-adrenomedullin (MR-proADM) were evaluated along with SOFA and quick SOFA (qSOFA) scores in patients with sepsis or septic shock. METHODS: A total of 109 septic patients and 50 patients with noninfectious disease admitted at the Department of Internal Medicine and General Surgery of the University Hospital Campus Bio-Medico of Rome were enrolled. PCT and MR-proADM were measured with immunoluminometric assays (Brahms, Hennigsdorf, Germany). Data were analyzed with receiver-operating characteristic (ROC) curve analysis, likelihood ratios, and Mann-Whitney U test using MedCalc 11.6.1.0 package. RESULTS: At ROC curve analysis, PCT showed the highest area under the curve and positive likelihood ratio values of 27.42 in sepsis and 43.62 in septic shock. MR-proADM and SOFA score showed a comparable performance. In septic shock, lactate showed the most accurate diagnostic ability. In sepsis, the best combination was PCT with MR-proADM with a posttest probability of 0.988. Based upon these results, an algorithm for sepsis and septic shock diagnosis has been developed. MR-proADM, SOFA, and qSOFA scores significantly discriminated survivors from nonsurvivors. CONCLUSIONS: PCT and MR-proADM test combination represent a good tool in sepsis diagnosis and prognosis suggesting their inclusion in the diagnostic algorithm besides SOFA and qSOFA scores. Furthermore, MR-proADM as marker of organ dysfunction, with a turn around time of about 30 min, has the advantage to be more objective and rapid than SOFA score. PMID- 29023360 TI - Honokiol Increases CD4+ T Cell Activation and Decreases TNF but Fails to Improve Survival Following Sepsis. AB - Honokiol is a biphenolic isolate extracted from the bark of the magnolia tree that has been used in traditional Chinese and Japanese medicine, and has more recently been investigated for its anti-inflammatory and antibacterial properties. Honokiol has previously been demonstrated to improve survival in sepsis models that have rapid 100% lethality. The purpose of this study was to determine the impact of Honokiol on the host response in a model of sepsis that more closely approximates human disease. Male and female C57BL/6 mice underwent cecal ligation and puncture to induce polymicrobial intra-abdominal sepsis. Mice were then randomized to receive an injection of either Honokiol (120 mg/kg/day) or vehicle and were sacrificed after 24 h for functional studies or followed 7 days for survival. Honokiol treatment after sepsis increased the frequency of CD4 T cells and increased activation of CD4 T cells as measured by the activation marker CD69. Honokiol also increased splenic dendritic cells. Honokiol simultaneously decreased frequency and number of CD8 T cells. Honokiol decreased systemic tumor necrosis factor without impacting other systemic cytokines. Honokiol did not have a detectable effect on kidney function, lung physiology, liver function, or intestinal integrity. In contrast to prior studies of Honokiol in a lethal model of sepsis, Honokiol did not alter survival at 7 days (70% mortality for Honokiol vs. 60% mortality for vehicle). Honokiol is thus effective in modulating the host immune response and inflammation following a clinically relevant model of sepsis but is not sufficient to alter survival. PMID- 29023362 TI - Glycocalyx Shedding is Enhanced by Age and Correlates with Increased Fluid Requirement in Patients with Major Burns. AB - BACKGROUND: Massive fluid shift after severe burn injury leads to edema and intravascular fluid loss that may result in burn-induced compartment syndrome (BICS) when corrected by aggressive fluid resuscitation. Factors causing this fluid shift remain unclear. Because glycocalyx regulates endothelial permeability, we hypothesized that glycocalyx shedding would increase fluid requirements in burn patients. This prospective cohort study aimed to identify relationships between shedding of the glycocalyx and fluid requirements after burn injury. METHODS: Patients aged more than 18 years with burn injury over more than 20% total body surface area (TBSA) were enrolled. Patient background factors including age, sex, burn size, and inhalation injury were recorded at patient enrollment. Serum syndecan-1, known as a biomarker of glycocalyx shedding, was serially measured on admission, day 1, days 3 to 5, around 1 and 2 weeks, and 1 month after the injury to observe postburn injury kinetics of syndecan-1. As biomarkers of endothelial damage, soluble thrombomodulin, antithrombin III, and plasminogen activator inhibitor-1 were also measured. We determined the relationship between syndecan-1 and initial 24-h fluid requirements and between syndecan-1 and morbidity/mortality. RESULTS: We enrolled 39 patients (median age, 55 years; median burn size, 35%TBSA): 16 developed BICS, and 10 patients died. Syndecan-1 level on admission was significantly higher than that in healthy volunteers and remained so. Syndecan-1 level on admission was associated with patient age (rho = 0.50, P = 0.001) but not burn size (rho = 0.08, P = 0.63), and antithrombin III level on admission was negatively associated with burn size (rho = -0.48, P = 0.002). The syndecan-1 level on admission was significantly associated with fluid requirement (mL/kg) (rho = 0.38, P = 0.017). After adjustment for age, sex, %TBSA, and inhalation injury, syndecan-1 was an independent parameter for the increase in fluid requirement (P = 0.04) and development of BICS (P = 0.03) by multivariable regression analysis. These findings suggested that glycocalyx shedding increased in an age-dependent manner, whereas antithrombin III decreased according to burn size. CONCLUSIONS: Glycocalyx shedding occurs soon after burn injury in an age-dependent manner. To reduce fluid-related complications such as BICS, new strategies to protect glycocalyx in burn patients are needed. PMID- 29023363 TI - LPS-Induced Systemic Inflammation Does Not Alter Atherosclerotic Plaque Area or Inflammation in APOE3*LEIDEN Mice in the Early Phase Up to 15 Days. AB - BACKGROUND AND AIMS: Observational studies show a peak incidence in cardiovascular events during and early after clinical conditions associated with substantial systemic inflammation, such as pneumonia. The acuteness of this increased risk suggests rapid plaque destabilization and associated intraplaque inflammation. We evaluated whether lipopolysaccharides (LPS)-evoked acute systemic inflammation would induce such detrimental vascular changes in murine aortas with manifest atherosclerotic lesions. METHODS AND RESULTS: ApoE3*Leiden mice were fed a high cholesterol diet for 20 weeks to establish atherosclerosis. Thereafter, mice received a single intraperitoneal injection with LPS to induce systemic inflammation, or saline for control. Mice were sacrificed 2 or 15 days post-LPS injection (n = 17) or post-saline injection (n = 13). Serum amyloid A, a sensitive marker of systemic inflammation, increased 250-fold in LPS-treated mice. Aortic root plaques were assessed for total plaque area, plaque severity, and inflammatory cell content. No significant differences in total surface area of atherosclerotic plaque were found between control and LPS groups sacrificed after 2 days (resp. 0.409 +/- 0.228 * 10 MUm vs. 0.285 +/- 0.169 * 10 MUm) (P = 0.31), and 15 days (resp. 0.950 +/- 0.938 * 10 MUm vs. 0.612 +/- 0.413 * 10 MUm) (P = 0.80). Furthermore, plaque type and number of lesions were unaltered and intraplaque density of macrophages and lymphocytes were comparable in both the groups. CONCLUSIONS: Intraperitoneal LPS injection in ApoE3*Leiden mice triggers a profound systemic inflammatory response, but does not increase atherosclerotic plaque area or inflammatory cell density. This model of LPS-induced inflammation in atherosclerosis-prone mice argues against intraplaque alterations as an explanation for acute inflammation-induced cardiovascular event risk. PMID- 29023364 TI - Feature Weight Driven Interactive Mutual Information Modeling for Heterogeneous Bio-Signal Fusion to Estimate Mental Workload. AB - Many people suffer from high mental workload which may threaten human health and cause serious accidents. Mental workload estimation is especially important for particular people such as pilots, soldiers, crew and surgeons to guarantee the safety and security. Different physiological signals have been used to estimate mental workload based on the n-back task which is capable of inducing different mental workload levels. This paper explores a feature weight driven signal fusion method and proposes interactive mutual information modeling (IMIM) to increase the mental workload classification accuracy. We used EEG and ECG signals to validate the effectiveness of the proposed method for heterogeneous bio-signal fusion. The experiment of mental workload estimation consisted of signal recording, artifact removal, feature extraction, feature weight calculation, and classification. Ten subjects were invited to take part in easy, medium and hard tasks for the collection of EEG and ECG signals in different mental workload levels. Therefore, heterogeneous physiological signals of different mental workload states were available for classification. Experiments reveal that ECG can be utilized as a supplement of EEG to optimize the fusion model and improve mental workload estimation. Classification results show that the proposed bio signal fusion method IMIM can increase the classification accuracy in both feature level and classifier level fusion. This study indicates that multi-modal signal fusion is promising to identify the mental workload levels and the fusion strategy has potential application of mental workload estimation in cognitive activities during daily life. PMID- 29023365 TI - Soft Smart Garments for Lower Limb Joint Position Analysis. AB - Revealing human movement requires lightweight, flexible systems capable of detecting mechanical parameters (like strain and pressure) while being worn comfortably by the user, and not interfering with his/her activity. In this work we address such multifaceted challenge with the development of smart garments for lower limb motion detection, like a textile kneepad and anklet in which soft sensors and readout electronics are embedded for retrieving movement of the specific joint. Stretchable capacitive sensors with a three-electrode configuration are built combining conductive textiles and elastomeric layers, and distributed around knee and ankle. Results show an excellent behavior in the ~30% strain range, hence the correlation between sensors' responses and the optically tracked Euler angles is allowed for basic lower limb movements. Bending during knee flexion/extension is detected, and it is discriminated from any external contact by implementing in real time a low computational algorithm. The smart anklet is designed to address joint motion detection in and off the sagittal plane. Ankle dorsi/plantar flexion, adduction/abduction, and rotation are retrieved. Both knee and ankle smart garments show a high accuracy in movement detection, with a RMSE less than 4 degrees in the worst case. PMID- 29023366 TI - Personalized Nanomedicine: A Revolution at the Nanoscale. AB - Nanomedicine is an interdisciplinary research field that results from the application of nanotechnology to medicine and has the potential to significantly improve some current treatments. Specifically, in the field of personalized medicine, it is expected to have a great impact in the near future due to its multiple advantages, namely its versatility to adapt a drug to a cohort of patients. In the present review, the properties and requirements of pharmaceutical dosage forms at the nanoscale, so-called nanomedicines, are been highlighted. An overview of the main current nanomedicines in pre-clinical and clinical development is presented, detailing the challenges to the personalization of these therapies. Next, the process of development of novel nanomedicines is described, from their design in research labs to their arrival on the market, including considerations for the design of nanomedicines adapted to the requirements of the market to achieve safe, effective, and quality products. Finally, attention is given to the point of view of the pharmaceutical industry, including regulation issues applied to the specific case of personalized medicine. The authors expect this review to be a useful overview of the current state of the art of nanomedicine research and industrial production, and the future opportunities of personalized medicine in the upcoming years. The authors encourage the development and marketing of novel personalized nanomedicines. PMID- 29023367 TI - Effect of Cadmium and Copper Exposure on Growth, Secondary Metabolites and Antioxidant Activity in the Medicinal Plant Sambung Nyawa (Gynura procumbens (Lour.) Merr). AB - A randomized complete block (RCBD) study was designed to investigate the effects of cadmium (Cd) and copper (Cu) on the growth, bioaccumulation of the two heavy metals, metabolite content and antibacterial activities in Gyanura procumbens (Lour.) Merr. Nine treatments including (1) control (no Cd and Cu); (2) Cd 2 = cadmium 2 mg/L; (3) Cd 4 = cadmium 4 mg/L; (4) Cu 70 = copper 70 mg/L; (5) Cu 140 = copper 140 mg/L); (6) Cd 2 + Cu 70 = cadmium 2 mg/L + copper 70 mg/L); (7) Cd 2 + Cu 140 = cadmium 2 mg/L + copper 70 mg/L); (8) Cd 4 + Cu 70 = cadmium 4 mg/L+ copper 70 mg/L and (9) Cd 4 + Cu 140 = cadmium 4 mg/L + copper 140 mg/L) were evaluated in this experiment. It was found that the growth parameters (plant dry weight, total leaf area and basal diameter) were reduced with the exposure to increased concentrations of Cd and Cu and further decreased under interaction between Cd and Cu. Production of total phenolics, flavonoids and saponin was observed to be reduced under combined Cd and Cu treatment. The reduction in the production of plant secondary metabolites might be due to lower phenyl alanine lyase (PAL) activity under these conditions. Due to that, the 1,1-diphenyl-2 picrylhydrazyl (DPPH), ferric reducing antioxidant potential (FRAP) and antibacterial activities was also found to be reduced by the combined treatments. The current experiments show that the medicinal properties of G. procumbens are reduced by cadmium and copper contamination. The accumulation of heavy metal also was found to be higher than the safety level recommended by the WHO in the single and combined treatments of Cd and Cu. These results indicate that exposure of G. procumbens to Cd and Cu contaminated soil may potentially harm consumers due to bioaccumulation of metals and reduced efficacy of the herbal product. PMID- 29023369 TI - TiO2 Nanowire Networks Prepared by Titanium Corrosion and Their Application to Bendable Dye-Sensitized Solar Cells. AB - TiO2 nanowire networks were prepared, using the corrosion of Ti foils in alkaline (potassium hydroxide, KOH) solution at different temperatures, and then a further ion-exchange process. The prepared nanostructures were characterized by field emission scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. The wet corroded foils were utilized as the photoanodes of bendable dye-sensitized solar cells (DSSCs), which exhibited a power conversion efficiency of 1.11% under back illumination. PMID- 29023368 TI - The Evolutionary History and Spatiotemporal Dynamics of the NC Lineage of Citrus Tristeza Virus. AB - Citrus tristeza virus (CTV) is a major pathogen affecting citrus trees worldwide. However, few studies have focused on CTV's evolutionary history and geographic behavior. CTV is locally dispersed by an aphid vector and long distance dispersion due to transportation of contaminated material. With the aim to delve deeper into the CTV-NC (New Clade) genotype evolution, we estimated an evolution rate of 1.19 * 10-3 subs/site/year and the most common recent ancestor in 1977. Furthermore, the place of origin of the genotype was in the United States, and a great expansion of the population was observed in Uruguay. This expansion phase could be a consequence of the increment in the number of naive citrus trees in Uruguayan orchards encompassing citrus industry growth in the past years. PMID- 29023370 TI - Self-Evaluation of PANDA-FBG Based Sensing System for Dynamic Distributed Strain and Temperature Measurement. AB - A novel method is introduced in this work for effectively evaluating the performance of the PANDA type polarization-maintaining fiber Bragg grating (PANDA FBG) distributed dynamic strain and temperature sensing system. Conventionally, the errors during the measurement are unknown or evaluated by using other sensors such as strain gauge and thermocouples. This will make the sensing system complicated and decrease the efficiency since more than one kind of sensor is applied for the same measurand. In this study, we used the approximately constant ratio of primary errors in strain and temperature measurement and realized the self-evaluation of the sensing system, which can significantly enhance the applicability, as well as the reliability in strategy making. PMID- 29023372 TI - PARP Inhibition by Flavonoids Induced Selective Cell Killing to BRCA2-Deficient Cells. AB - High consumption of dietary flavonoids might contribute to a reduction of cancer risks. Quercetin and its glycosides have PARP inhibitory effects and can induce selective cytotoxicity in BRCA2-deficient cells by synthetic lethality. We hypothesized that common flavonoids in diet naringenin, hesperetin and their glycosides have a similar structure to quercetin, which might have comparable PARP inhibitory effects, and can induce selective cytotoxicity in BRCA2-deficient cells. We utilized Chinese hamster V79 wild type, V-C8 BRCA2-deficient and its gene-complemented cells. In vitro analysis revealed that both naringenin and hesperetin present a PARP inhibitory effect. This inhibitory effect is less specific than for quercetin. Hesperetin was more cytotoxic to V79 cells than quercetin and naringenin based on colony formation assay. Quercetin and naringenin killed V-C8 cells with lower concentrations, and presented selective cytotoxicity to BRCA2-deficient cells. However, the cytotoxicity of hesperetin was similar among all three cell lines. Glycosyl flavonoids, isoquercetin and rutin as well as naringin showed selective cytotoxicity to BRCA2-deficient cells; hesperidin did not. These results suggest that flavonoids with the PARP inhibitory effect can cause synthetic lethality to BRCA2-deficient cells when other pathways are not the primary cause of death. PMID- 29023373 TI - Evaluation of the Ability of Nanostructured PEI-Coated Iron Oxide Nanoparticles to Incorporate Cisplatin during Synthesis. AB - Nanoparticles (NPs) have a high potential for biological applications as they can be used as carriers for the controlled release of bioactive factors. Here we focused on poly(ethylenimine) (PEI)-coated iron oxide hybrid NPs obtained by hydrothermal synthesis in high pressure conditions and evaluated their behavior in culture medium in the presence or absence of cells, as well as their ability to incorporate antitumor drug cisplatin. Our results showed that the hydrothermal conditions used for Fe-PEI NPs synthesis allowed the incorporation of cisplatin, which even increased its anti-tumor effects. Furthermore, the commonly occurring phenomenon of NPs aggregation in culture medium was exploited for further entrapment of other active molecules, such as the fluorescent dye DiI and valinomycin. The molecules bound to NPs during synthesis or during aggregation process were delivered inside various cells after in vitro and in vivo direct contact between cells and NPs and their biological activity was preserved, thus supporting the therapeutic value of Fe-PEI NPs as drug delivery tools. PMID- 29023371 TI - Expression Profiles of Ligands for Activating Natural Killer Cell Receptors on HIV Infected and Uninfected CD4+ T Cells. AB - Natural Killer (NK) cell responses to HIV-infected CD4 T cells (iCD4) depend on the integration of signals received through inhibitory (iNKR) and activating NK receptors (aNKR). iCD4 activate NK cells to inhibit HIV replication. HIV infection-dependent changes in the human leukocyte antigen (HLA) ligands for iNKR on iCD4 are well documented. By contrast, less is known regarding the HIV infection related changes in ligands for aNKR on iCD4. We examined the aNKR ligand profiles HIV p24+ HIV iCD4s that maintained cell surface CD4 (iCD4+), did not maintain CD4 (iCD4-) and uninfected CD4 (unCD4) T cells for expression of unique long (UL)-16 binding proteins-1 (ULBP-1), ULBP-2/5/6, ULBP-3, major histocompatibility complex (MHC) class 1-related (MIC)-A, MIC-B, CD48, CD80, CD86, CD112, CD155, Intercellular adhesion molecule (ICAM)-1, ICAM-2, HLA-E, HLA F, HLA-A2, HLA-C, and the ligands to NKp30, NKp44, NKp46, and killer immunoglobulin-like receptor 3DS1 (KIR3DS1) by flow cytometry on CD4 T cells from 17 HIV-1 seronegative donors activated and infected with HIV. iCD4+ cells had higher expression of aNKR ligands than did unCD4. However, the expression of aNKR ligands on iCD4 where CD4 was downregulated (iCD4-) was similar to (ULBP-1, ULBP 2/5/6, ULBP-3, MIC-A, CD48, CD80, CD86 and CD155) or significantly lower than (MIC-B, CD112 and ICAM-2) what was observed on unCD4. Thus, HIV infection can be associated with increased expression of aNKR ligands or either baseline or lower than baseline levels of aNKR ligands, concomitantly with the HIV-mediated downregulation of cell surface CD4 on infected cells. PMID- 29023374 TI - Periodic TiO2 Nanostructures with Improved Aspect and Line/Space Ratio Realized by Colloidal Photolithography Technique. AB - This paper presents substantial improvements of the colloidal photolithography technique (also called microsphere lithography) with the goal of better controlling the geometry of the fabricated nano-scale structures-in this case, hexagonally arranged nanopillars-printed in a layer of directly photopatternable sol-gel TiO2. Firstly, to increase the achievable structure height the photosensitive layer underneath the microspheres is deposited on a reflective layer instead of the usual transparent substrate. Secondly, an increased width of the pillars is achieved by tilting the incident wave and using multiple exposures or substrate rotation, additionally allowing to better control the shape of the pillar's cross section. The theoretical analysis is carried out by rigorous modelling of the photonics nanojet underneath the microspheres and by optimizing the experimental conditions. Aspect ratios (structure height/lateral structure size) greater than 2 are predicted and demonstrated experimentally for structure dimensions in the sub micrometer range, as well as line/space ratios (lateral pillar size/distance between pillars) greater than 1. These nanostructures could lead for example to materials exhibiting efficient light trapping in the visible and near-infrared range, as well as improved hydrophobic or photocatalytic properties for numerous applications in environmental and photovoltaic systems. PMID- 29023375 TI - Workflow for Criticality Assessment Applied in Biopharmaceutical Process Validation Stage 1. AB - Identification of critical process parameters that impact product quality is a central task during regulatory requested process validation. Commonly, this is done via design of experiments and identification of parameters significantly impacting product quality (rejection of the null hypothesis that the effect equals 0). However, parameters which show a large uncertainty and might result in an undesirable product quality limit critical to the product, may be missed. This might occur during the evaluation of experiments since residual/un-modelled variance in the experiments is larger than expected a priori. Estimation of such a risk is the task of the presented novel retrospective power analysis permutation test. This is evaluated using a data set for two unit operations established during characterization of a biopharmaceutical process in industry. The results show that, for one unit operation, the observed variance in the experiments is much larger than expected a priori, resulting in low power levels for all non-significant parameters. Moreover, we present a workflow of how to mitigate the risk associated with overlooked parameter effects. This enables a statistically sound identification of critical process parameters. The developed workflow will substantially support industry in delivering constant product quality, reduce process variance and increase patient safety. PMID- 29023376 TI - Altered Protein Expression of Cardiac CYP2J and Hepatic CYP2C, CYP4A, and CYP4F in a Mouse Model of Type II Diabetes-A Link in the Onset and Development of Cardiovascular Disease? AB - Arachidonic acid can be metabolized by cytochrome P450 (CYP450) enzymes in a tissue- and cell-specific manner to generate vasoactive products such as epoxyeicosatrienoic acids (EETs-cardioprotective) and hydroxyeicosatetraenoic acids (HETEs-cardiotoxic). Type II diabetes is a well-recognized risk factor for developing cardiovascular disease. A mouse model of Type II diabetes (C57BLKS/J db/db) was used. After sacrifice, livers and hearts were collected, washed, and snap frozen. Total proteins were extracted. Western blots were performed to assess cardiac CYP2J and hepatic CYP2C, CYP4A, and CYP4F protein expression, respectively. Significant decreases in relative protein expression of cardiac CYP2J and hepatic CYP2C were observed in Type II diabetes animals compared to controls (CYP2J: 0.80 +/- 0.03 vs. 1.05 +/- 0.06, n = 20, p < 0.001); (CYP2C: 1.56 +/- 0.17 vs. 2.21 +/- 0.19, n = 19, p < 0.01). In contrast, significant increases in relative protein expression of both hepatic CYP4A and CYP4F were noted in Type II diabetes mice compared to controls (CYP4A: 1.06 +/- 0.09 vs. 0.18 +/- 0.01, n = 19, p < 0.001); (CYP4F: 2.53 +/- 0.22 vs. 1.10 +/- 0.07, n = 19, p < 0.001). These alterations induced by Type II diabetes in the endogenous pathway (CYP450) of arachidonic acid metabolism may increase the risk for cardiovascular disease by disrupting the fine equilibrium between cardioprotective (CYP2J/CYP2C-generated) and cardiotoxic (CYP4A/CYP4F-generated) metabolites of arachidonic acid. PMID- 29023377 TI - Response of Intestinal Bacterial Flora to the Long-term Feeding of Aflatoxin B1 (AFB1) in Mice. AB - In order to investigate the influence of aflatoxin B1 (AFB1) on intestinal bacterial flora, 24 Kunming mice (KM mice) were randomly placed into four groups, which were labeled as control, low-dose, medium-dose, and high-dose groups. They were fed intragastrically with 0.4 mL of 0 mg/L, 2.5 mg/L, 4 mg/L, or 10 mg/L of AFB1 solutions, twice a day for 2 months. The hypervariable region V3 + V4 on 16S rDNA of intestinal bacterial flora was sequenced by the use of a high-flux sequencing system on a Miseq Illumina platform; then, the obtained sequences were analyzed. The results showed that, when compared with the control group, both genera and phyla of intestinal bacteria in the three treatment groups decreased. About one third of the total genera and one half of the total phyla remained in the high-dose group. The dominant flora were Lactobacillus and Bacteroides in all groups. There were significant differences in the relative abundance of intestinal bacterial flora among groups. Most bacteria decreased as a whole from the control to the high-dose groups, but several beneficial and pathogenic bacterial species increased significantly with increasing dose of AFB1. Thus, the conclusion was that intragastric feeding with 2.5~10 mg/mL AFB1 for 2 months could decrease the majority of intestinal bacterial flora and induce the proliferation of some intestinal bacteria flora. PMID- 29023378 TI - The Effects of Data Collection Method and Monitoring of Workers' Behavior on the Generation of Demolition Waste. AB - The roles of both the data collection method (including proper classification) and the behavior of workers on the generation of demolition waste (DW) are important. By analyzing the effect of the data collection method used to estimate DW, and by investigating how workers' behavior can affect the total amount of DW generated during an actual demolition process, it was possible to identify strategies that could improve the prediction of DW. Therefore, this study surveyed demolition waste generation rates (DWGRs) for different types of building by conducting on-site surveys immediately before demolition in order to collect adequate and reliable data. In addition, the effects of DW management strategies and of monitoring the behavior of workers on the actual generation of DW were analyzed. The results showed that when monitoring was implemented, the estimates of DW obtained from the DWGRs that were surveyed immediately before demolition and the actual quantities of DW reported by the demolition contractors had an error rate of 0.63% when the results were compared. Therefore, this study has shown that the proper data collection method (i.e., data were collected immediately before demolition) applied in this paper and monitoring on the demolition site have a significant impact on waste generation. PMID- 29023379 TI - Effect of Early Pelvic Binder Use in the Emergency Management of Suspected Pelvic Trauma: A Retrospective Cohort Study. AB - BACKGROUND: We aimed to evaluate the effect of early pelvic binder use in the emergency management of suspected pelvic trauma, compared with the conventional stepwise approach. METHODS: We enrolled trauma patients with initial stabilization using a pelvic binder when suspecting pelvic injury. The inclusion criteria were traumatic injury requiring a trauma team and at least one of the following: a loss of consciousness or a Glasgow coma score (GCS) of <13; systolic blood pressure of <90 mmHg; falling from >=6 m; injury to multiple vital organs; and suspected pelvic injury. Various parameters, including gender, age, mechanism of injury, GCS, mortality, hospital stay, initial vital signs, revised trauma score, injury severity score, and outcome, were assessed and compared with historical controls. RESULTS: A total of 204 patients with high-energy multiple trauma from a single level I trauma center in North Taiwan were enrolled in the study from August 2013 to July 2014. The two group baseline patient characteristics were all collected and compared. The trauma patients with suspected pelvic fractures initially stabilized with a pelvic binder had shorter hospital and intensive care unit (ICU) stays. The study group achieved statistically significantly improved survival and lower mean blood transfusion volume and mortality rate, although they were more severe in the trauma score. CONCLUSIONS: We recommend prompt pelvic binder use for suspected pelvic injury before definitive imaging is available, as a cervical spine collar is used to protect the cervical spine from further injury prior to definitive identification and characterization of an injury. PMID- 29023381 TI - Design of a Low-Cost Air Levitation System for Teaching Control Engineering. AB - Air levitation is the process by which an object is lifted without mechanical support in a stable position, by providing an upward force that counteracts the gravitational force exerted on the object. This work presents a low-cost lab implementation of an air levitation system, based on open solutions. The rapid dynamics makes it especially suitable for a control remote lab. Due to the system's nature, the design can be optimized and, with some precision trade-off, kept affordable both in cost and construction effort. It was designed to be easily adopted to be used as both a remote lab and as a hands-on lab. PMID- 29023382 TI - Quantification of Representative Ciguatoxins in the Pacific Using Quantitative Nuclear Magnetic Resonance Spectroscopy. AB - The absolute quantification of five toxins involved in ciguatera fish poisoning (CFP) in the Pacific was carried out by quantitative 1H-NMR. The targeted toxins were ciguatoxin-1B (CTX1B), 52-epi-54-deoxyciguatoxin-1B (epideoxyCTX1B), ciguatoxin-3C (CTX3C), 51-hydroxyciguatoxin-3C (51OHCTX3C), and ciguatoxin-4A (CTX4A). We first calibrated the residual protons of pyridine-d5 using certified reference material, 1,4-BTMSB-d4, prepared the toxin solutions with the calibrated pyridin-d5, measured the 1H-NMR spectra, and quantified the toxin using the calibrated residual protons as the internal standard. The absolute quantification was carried out by comparing the signal intensities between the selected protons of the target toxin and the residual protons of the calibrated pyridine-d5. The proton signals residing on the ciguatoxins (CTXs) to be used for quantification were carefully selected for those that were well separated from adjacent signals including impurities and that exhibited an effective intensity. To quantify CTX1B and its congeners, the olefin protons in the side chain were judged appropriate for use. The quantification was achievable with nano-molar solutions. The probable errors for uncertainty, calculated on respective toxins, ranged between 3% and 16%. The contamination of the precious toxins with nonvolatile internal standards was thus avoided. After the evaporation of pyridine-d5, the calibrated CTXs were ready for use as the reference standard in the quantitative analysis of ciguatoxins by LC/MS. PMID- 29023383 TI - AAL Platform with a "De Facto" Standard Communication Interface (TICO): Training in Home Control in Special Education. AB - Framed within a long-term cooperation between university and special education teachers, training in alternative communication skills and home control was realized using the "TICO" interface, a communication panel editor extensively used in special education schools. From a technological view we follow AAL technology trends by integrating a successful interface in a heterogeneous services AAL platform, focusing on a functional view. Educationally, a very flexible interface in line with communication training allows dynamic adjustment of complexity, enhanced by an accessible mindset and virtual elements significance already in use, offers specific interaction feedback, adapts to the evolving needs and capacities and improves the personal autonomy and self confidence of children at school and home. TICO-home-control was installed during the last school year in the library of a special education school to study adaptations and training strategies to enhance the autonomy opportunities of its pupils. The methodology involved a case study and structured and semi-structured observations. Five children, considered unable to use commercial home control systems were trained obtaining good results in enabling them to use an open home control system. Moreover this AAL platform has proved efficient in training children in previous cognitive steps like virtual representation and cause-effect interaction. PMID- 29023380 TI - The Gut Microbiome Feelings of the Brain: A Perspective for Non-Microbiologists. AB - Objectives: To comprehensively review the scientific knowledge on the gut-brain axis. Methods: Various publications on the gut-brain axis, until 31 July 2017, were screened using the Medline, Google, and Cochrane Library databases. The search was performed using the following keywords: "gut-brain axis", "gut microbiota-brain axis", "nutrition microbiome/microbiota", "enteric nervous system", "enteric glial cells/network", "gut-brain pathways", "microbiome immune system", "microbiome neuroendocrine system" and "intestinal/gut/enteric neuropeptides". Relevant articles were selected and reviewed. Results: Tremendous progress has been made in exploring the interactions between nutrients, the microbiome, and the intestinal, epithelium-enteric nervous, endocrine and immune systems and the brain. The basis of the gut-brain axis comprises of an array of multichannel sensing and trafficking pathways that are suggested to convey the enteric signals to the brain. These are mediated by neuroanatomy (represented by the vagal and spinal afferent neurons), the neuroendocrine-hypothalamic-pituitary adrenal (HPA) axis (represented by the gut hormones), immune routes (represented by multiple cytokines), microbially-derived neurotransmitters, and finally the gate keepers of the intestinal and brain barriers. Their mutual and harmonious but intricate interaction is essential for human life and brain performance. However, a failure in the interaction leads to a number of inflammatory-, autoimmune-, neurodegenerative-, metabolic-, mood-, behavioral-, cognitive-, autism-spectrum-, stress- and pain-related disorders. The limited availability of information on the mechanisms, pathways and cause-and-effect relationships hinders us from translating and implementing the knowledge from the bench to the clinic. Implications: Further understanding of this intricate field might potentially shed light on novel preventive and therapeutic strategies to combat these disorders. Nutritional approaches, microbiome manipulations, enteric and brain barrier reinforcement and sensing and trafficking modulation might improve physical and mental health outcomes. PMID- 29023385 TI - Implementation of High Time Delay Accuracy of Ultrasonic Phased Array Based on Interpolation CIC Filter. AB - In order to improve the accuracy of ultrasonic phased array focusing time delay, analyzing the original interpolation Cascade-Integrator-Comb (CIC) filter, an 8* interpolation CIC filter parallel algorithm was proposed, so that interpolation and multichannel decomposition can simultaneously process. Moreover, we summarized the general formula of arbitrary multiple interpolation CIC filter parallel algorithm and established an ultrasonic phased array focusing time delay system based on 8* interpolation CIC filter parallel algorithm. Improving the algorithmic structure, 12.5% of addition and 29.2% of multiplication was reduced, meanwhile the speed of computation is still very fast. Considering the existing problems of the CIC filter, we compensated the CIC filter; the compensated CIC filter's pass band is flatter, the transition band becomes steep, and the stop band attenuation increases. Finally, we verified the feasibility of this algorithm on Field Programming Gate Array (FPGA). In the case of system clock is 125 MHz, after 8* interpolation filtering and decomposition, time delay accuracy of the defect echo becomes 1 ns. Simulation and experimental results both show that the algorithm we proposed has strong feasibility. Because of the fast calculation, small computational amount and high resolution, this algorithm is especially suitable for applications with high time delay accuracy and fast detection. PMID- 29023384 TI - Nano-Formulation of Ethambutol with Multifunctional Graphene Oxide and Magnetic Nanoparticles Retains Its Anti-Tubercular Activity with Prospects of Improving Chemotherapeutic Efficacy. AB - Tuberculosis (TB) is a dreadful bacterial disease, infecting millions of human and cattle every year worldwide. More than 50 years after its discovery, ethambutol continues to be an effective part of the World Health Organization's recommended frontline chemotherapy against TB. However, the lengthy treatment regimens consisting of a cocktail of antibiotics affect patient compliance. There is an urgent need to improve the current therapy so as to reduce treatment duration and dosing frequency. In this study, we have designed a novel anti-TB multifunctional formulation by fabricating graphene oxide with iron oxide magnetite nanoparticles serving as a nano-carrier on to which ethambutol was successfully loaded. The designed nanoformulation was characterised using various analytical techniques. The release of ethambutol from anti-TB multifunctional nanoparticles formulation was found to be sustained over a significantly longer period of time in phosphate buffer saline solution at two physiological pH (7.4 and 4.8). Furthermore, the nano-formulation showed potent anti-tubercular activity while remaining non-toxic to the eukaryotic cells tested. The results of this in vitro evaluation of the newly designed nano-formulation endorse its further development in vivo. PMID- 29023386 TI - The Immunogenicity of Branded and Biosimilar Infliximab in Rheumatoid Arthritis According to Th9-Related Responses. AB - : Our objective was to evaluate the immunogenicity of branded and biosimilar infliximab by detecting changes in T-helper-9 (Th9) percentages induced by an in vitro stimulation test. METHODS: Peripheral blood mononuclear cells collected from 55 consecutive rheumatoid arthritis (RA) outpatients (15 drug free, 20 successfully treated with branded infliximab, 20 branded infliximab inadequate responders) and 10 healthy controls were cultured, with or without 50 MUg/mL of infliximab originator (Remicade(r)) or 50 MUg/mL of infliximab biosimilar (Remsima(r)) for 18 h. Th9 lymphocytes were identified by means of flow cytometry as PU.1 and IRF4-expressing, IL-9-secreting CD4+ T cells. Furthermore, the markers CCR7 and CD45RA were used to distinguish naive from memory IL-9 producer cells. RESULTS: Under unstimulated conditions, the drug-free RA patients had the highest percentages of Th9 lymphocytes. Following stimulation with branded infliximab, the percentages of PU.1 and IRF4-expressing Th9 cells, CCR7+, CD45RA- (central memory) and CCR7-, CD45RA- (effector memory) cells significantly increased in the group of inadequate responders, but no significant variation was observed after exposure to the biosimilar of infliximab. CONCLUSIONS: Th9 cells seem to be involved in the immune response to the epitopes of branded, but not biosimilar, infliximab, and this may depend on the recall and stimulation of both central and effector memory cells. PMID- 29023387 TI - Combination of beta-glucan and Morus alba L. Leaf Extract Promotes Metabolic Benefits in Mice Fed a High-Fat Diet. AB - beta-glucan (BG) and mulberry have received increasing attention for their benefits as natural sources of metabolic health. In the current study, we investigated the synergetic beneficial effects of BG and mulberry leaf extract (MLE) in mice fed a high-fat diet (HFD). Male C57BL6 mice were fed a HFD for twelve weeks to induce significant obesity and insulin resistance. BG and MLE were administrated orally throughout the feeding period. The administration of BG resulted in a significant reduction in body weight gain, perirenal fat mass, fasting insulin, serum lipids, serum inflammation markers, and fatty liver, showing systemic health improvement. Likewise, the administration of MLE showed benefits similar to BG, with the exception of body weight gain. In addition to the systemic benefits, the combination of BG and MLE resulted in a synergetic improvement in insulin sensitivity. Meanwhile, only the combination of BG and MLE significantly enhanced liver GST (Glutathione S-Transferase) activity and CuZn SOD (Superoxide dismutase (Cu-Zn)) activity, resulting in a significant reduction in GSH/GSSG (Glutathione disulfide) and reactive oxygen species (ROS) levels in the liver. These results further confirm the beneficial effects of BG and MLE on metabolic disorders and show that the combination of BG and MLE has synergetic effects. PMID- 29023389 TI - Upcycling Waste Lard Oil into Vertical Graphene Sheets by Inductively Coupled Plasma Assisted Chemical Vapor Deposition. AB - Vertical graphene (VG) sheets were single-step synthesized via inductively coupled plasma (ICP)-enhanced chemical vapor deposition (PECVD) using waste lard oil as a sustainable and economical carbon source. Interweaved few-layer VG sheets, H2, and other hydrocarbon gases were obtained after the decomposition of waste lard oil. The influence of parameters such as temperature, gas proportion, ICP power was investigated to tune the nanostructures of obtained VG, which indicated that a proper temperature and H2 concentration was indispensable for the synthesis of VG sheets. Rich defects of VG were formed with a high I D / I G ratio (1.29), consistent with the dense edges structure observed in electron microscopy. Additionally, the morphologies, crystalline degree, and wettability of nanostructure carbon induced by PECVD and ICP separately were comparatively analyzed. The present work demonstrated the potential of our PECVD recipe to synthesize VG from abundant natural waste oil, which paved the way to upgrade the low-value hydrocarbons into advanced carbon material. PMID- 29023388 TI - The Association of Vitamin D Status with Disease Activity in a Cohort of Crohn's Disease Patients in Canada. AB - We determined the association between vitamin D status as 25hydroxyvitamin D [25(OH)D] and disease activity in a cohort of 201 Crohn's Disease (CD) patients in Saskatoon, Canada over three years. The association between high-sensitivity C reactive protein (hs-CRP) and 25(OH)D and several disease predictors were evaluated by the generalized estimating equation (GEE) over three time-point measurements. A GEE binary logistic regression test was used to evaluate the association between vitamin D status and the Harvey-Bradshaw Index (HBI). The deficient vitamin D group (<=29 nmol/L) had significantly higher mean hs-CRP levels compared with the three other categories of vitamin D status (p < 0.05). CRP was significantly lower in all of the other groups compared with the vitamin D-deficient group, which had Coef. = 12.8 units lower (95% CI -19.8, -5.8), Coef. 7.85 units (95% CI -14.9, -0.7), Coef. 9.87 units (95% CI -17.6, -2.0) for the vitamin D insufficient, adequate, and optimal groups, respectively. The vitamin D status was associated with the HBI active disease category. However, the difference in the odds ratio compared with the reference category of deficient vitamin D category was only significant in the insufficient category (odds ratio = 3.45, p = 0.03, 95% CI 1.0, 10.8). Vitamin D status was inversely associated with indicators of disease activity in Crohn's disease, particularly with the objective measures of inflammation. PMID- 29023391 TI - Experimental Analysis and Mathematical Modeling on Mg-Li Alloy Sheets with Three Crystal Structures during Cold Rolling and Heat Treatment. AB - The microstructural evolution, mechanical properties, and mathematical relationship of an alpha, alpha + beta, and beta phase Mg-Li alloy during the cold rolling and annealing process were investigated. The results showed that the increased Li element gradually transformed the Mg matrix structure from hcp to bcc. Simultaneously, the alloy plasticity was improved remarkably during cold rolling. In the annealing process, a sort of abnormal grain growth was found in Mg-11Li-3Al-2Zn-0.2Y, but was not detected in Mg-5Li-3Al-2Zn-0.2Y and Mg-8Li-3Al 2Zn-0.2Y. Moreover, the mechanical properties of alloy were evidently improved through a kind of solid solution in the beta matrix. To accurately quantify this strengthening effect, the method of mathematical modeling was used to determine the relationship between strength and multiple factors. PMID- 29023390 TI - Electrospun Zein/Gelatin Scaffold-Enhanced Cell Attachment and Growth of Human Periodontal Ligament Stem Cells. AB - Periodontitis is a widespread dental disease affecting 10 to 15% of worldwide adult population, yet the current treatments are far from satisfactory. The human periodontal ligament stem cell is a promising potential seed cell population type in cell-based therapy and tissue regeneration, which require appropriate scaffold to provide a mimic extracellular matrix. Zein, a native protein derived from corn, has an excellent biodegradability, and therefore becomes a hotspot on research and application in the field of biomaterials. However, the high hydrophobicity of zein is unfavorable for cell adhesion and thus greatly limits its use. In this study, we fabricate co-electrospun zein/gelatin fiber scaffolds in order to take full advantages of the two natural materials and electrospun fiber structure. Zein and gelatin in four groups of different mass ratios (100:00, 100:20, 100:34, 100:50), and dissolved the mixtures in 1,1,1,3,3,3 hexafluoro-2-propanol, then produced membranes by electrospinning. The results showed that the scaffolds were smooth and homogeneous, as shown in scanning electron micrographs. The diameter of hybrid fibers was increased from 69 +/- 22 nm to 950 +/- 356 nm, with the proportion of gelatin increase. The cell affinity of zein/gelatin nanofibers was evaluated by using human periodontal ligament stem cells. The data showed that hydrophilicity and cytocompatibility of zein nanofibers were improved by blended gelatin. Taken together, our results indicated that the zein/gelatin co-electrospun fibers had sufficient mechanical properties, satisfied cytocompatibility, and can be utilized as biological scaffolds in the field of tissue regeneration. PMID- 29023392 TI - Disposition, Metabolism and Histone Deacetylase and Acetyltransferase Inhibition Activity of Tetrahydrocurcumin and Other Curcuminoids. AB - Tetrahydrocurcumin (THC), curcumin and calebin-A are curcuminoids found in turmeric (Curcuma longa). Curcuminoids have been established to have a variety of pharmacological activities and are used as natural health supplements. The purpose of this study was to identify the metabolism, excretion, antioxidant, anti-inflammatory and anticancer properties of these curcuminoids and to determine disposition of THC in rats after oral administration. We developed a UHPLC-MS/MS assay for THC in rat serum and urine. THC shows multiple redistribution phases with corresponding increases in urinary excretion rate. In vitro antioxidant activity, histone deacetylase (HDAC) activity, histone acetyltransferase (HAT) activity and anti-inflammatory inhibitory activity were examined using commercial assay kits. Anticancer activity was determined in Sup T1 lymphoma cells. Our results indicate THC was poorly absorbed after oral administration and primarily excreted via non-renal routes. All curcuminoids exhibited multiple pharmacological effects in vitro, including potent antioxidant activity as well as inhibition of CYP2C9, CYP3A4 and lipoxygenase activity without affecting the release of TNF-alpha. Unlike curcumin and calebin-A, THC did not inhibit HDAC1 and PCAF and displayed a weaker growth inhibition activity against Sup-T1 cells. We show evidence for the first time that curcumin and calebin-A inhibit HAT and PCAF, possibly through a Michael-addition mechanism. PMID- 29023394 TI - Carbon-Based Oxamate Cobalt(III) Complexes as Bioenzyme Mimics for Contaminant Elimination in High Backgrounds of Complicated Constituents. AB - Complex wastewater with massive components is now a serious environmental issue facing humanity. Selective removal of low-concentration contaminants in mixed constituents holds great promise for increasing water supplies. Bioenzymes like horseradish peroxidase exhibit oxidizing power and selectivity. Here, we manufactured its mimic through immobilizing non-heme oxamate anionic cobalt(III) complex ([CoIII(opba)]-, opba = o-phenylenebis(oxamate)) onto pyridine (Py) modified multiwalled carbon nanotubes ([CoIII(opba)]--Py-MWCNTs, MWCNTs = multiwalled carbon nanotubes), where MWCNTs captured substrates and Py functioned as the fifth ligand. We chose typical azo dye (C.I. Acid Red 1) and antibiotic (ciprofloxacin) as model substrates. Without *OH, this catalyst could detoxify target micropollutants efficiently at pH from 8 to 11. It also remained efficient in repetitive tests, and the final products were non-poisonous OH-containing acids. Combined with radical scavenger tests and electron paramagnetic resonance result, we speculated that high-valent cobalt-oxo active species and oxygen atom transfer reaction dominated in the reaction pathway. According to density functional theory calculations, the electron spin density distribution order showed that electron-withdrawing ligand was beneficial for inward pulling the excess electron and lowering the corresponding energy levels, achieving an electrophilic-attack enhancement of the catalyst. With target removal property and recyclability, this catalyst is prospective in water detoxication. PMID- 29023393 TI - Flavanol-Rich Cocoa Powder Interacts with Lactobacillus rhamnossus LGG to Alter the Antibody Response to Infection with the Parasitic Nematode Ascaris suum. AB - Consumption of the probiotic bacteria LactobacillusrhamnosusLGG and flavanol-rich cocoa have purported immune modulating effects. This study compared the host response to infection with Ascaris suum in three-month-old pigs fed a standard growth diet supplemented with a vehicle control: LGG, cocoa powder (CP) or LGG + CP. Pigs were inoculated with infective A. suum eggs during Week 5 of dietary treatment and euthanized 17 days later. Lactobacillus abundance was increased in pigs fed LGG or LGG + CP. Specific anti-A. suum IgG2 antibodies were decreased (p < 0.05) in LGG + CP-fed pigs compared to pigs fed CP alone. Pigs fed LGG had significantly reduced expression (p < 0.05) of Eosinophil peroxidase (EPX), Interleukin 13 (IL-13), Eotaxin 3 (CCL26), Toll-like receptor 2 (TLR2), TLR4, and TLR9 and Interleukin-1Beta (IL1B) in the tracheal-bronchial lymph node (TBLN) independent of CP treatment. These results suggested that feeding LGG significantly reduced the localized prototypical Th2-related markers of infection with A. suum in the TBLN. Although feeding CP does not appear to affect the A. suum-induced Th2-associated cytokine response, feeding LGG + CP reduced anti-A. suum antibodies and delayed intestinal expulsion of parasitic larvae from the intestine. PMID- 29023395 TI - Validation of Molecular Dynamics Simulations for Prediction of Three-Dimensional Structures of Small Proteins. AB - Although various higher-order protein structure prediction methods have been developed, almost all of them were developed based on the three-dimensional (3D) structure information of known proteins. Here we predicted the short protein structures by molecular dynamics (MD) simulations in which only Newton's equations of motion were used and 3D structural information of known proteins was not required. To evaluate the ability of MD simulationto predict protein structures, we calculated seven short test protein (10-46 residues) in the denatured state and compared their predicted and experimental structures. The predicted structure for Trp-cage (20 residues) was close to the experimental structure by 200-ns MD simulation. For proteins shorter or longer than Trp-cage, root-mean square deviation values were larger than those for Trp-cage. However, secondary structures could be reproduced by MD simulations for proteins with 10 34 residues. Simulations by replica exchange MD were performed, but the results were similar to those from normal MD simulations. These results suggest that normal MD simulations can roughly predict short protein structures and 200-ns simulations are frequently sufficient for estimating the secondary structures of protein (approximately 20 residues). Structural prediction method using only fundamental physical laws are useful for investigating non-natural proteins, such as primitive proteins and artificial proteins for peptide-based drug delivery systems. PMID- 29023397 TI - An Anomalous Noise Events Detector for Dynamic Road Traffic Noise Mapping in Real Life Urban and Suburban Environments. AB - One of the main aspects affecting the quality of life of people living in urban and suburban areas is their continued exposure to high Road Traffic Noise (RTN) levels. Until now, noise measurements in cities have been performed by professionals, recording data in certain locations to build a noise map afterwards. However, the deployment of Wireless Acoustic Sensor Networks (WASN) has enabled automatic noise mapping in smart cities. In order to obtain a reliable picture of the RTN levels affecting citizens, Anomalous Noise Events (ANE) unrelated to road traffic should be removed from the noise map computation. To this aim, this paper introduces an Anomalous Noise Event Detector (ANED) designed to differentiate between RTN and ANE in real time within a predefined interval running on the distributed low-cost acoustic sensors of a WASN. The proposed ANED follows a two-class audio event detection and classification approach, instead of multi-class or one-class classification schemes, taking advantage of the collection of representative acoustic data in real-life environments. The experiments conducted within the DYNAMAP project, implemented on ARM-based acoustic sensors, show the feasibility of the proposal both in terms of computational cost and classification performance using standard Mel cepstral coefficients and Gaussian Mixture Models (GMM). The two-class GMM core classifier relatively improves the baseline universal GMM one-class classifier F1 measure by 18.7% and 31.8% for suburban and urban environments, respectively, within the 1-s integration interval. Nevertheless, according to the results, the classification performance of the current ANED implementation still has room for improvement. PMID- 29023396 TI - Diversity and Antimicrobial Potential of Predatory Bacteria from the Peruvian Coastline. AB - The microbiome of three different sites at the Peruvian Pacific coast was analyzed, revealing a lower bacterial biodiversity at Isla Foca than at Paracas and Manglares, with 89 bacterial genera identified, as compared to 195 and 173 genera, respectively. Only 47 of the bacterial genera identified were common to all three sites. In order to obtain promising strains for the putative production of novel antimicrobials, predatory bacteria were isolated from these sampling sites, using two different bait organisms. Even though the proportion of predatory bacteria was only around 0.5% in the here investigated environmental microbiomes, by this approach in total 138 bacterial strains were isolated as axenic culture. 25% of strains showed antibacterial activity, thereby nine revealed activity against clinically relevant methicillin resistant Staphylococcus aureus (MRSA) and three against enterohemorrhagic Escherichia coli (EHEC) strains. Phylogeny and physiological characteristics of the active strains were investigated. First insights into the chemical basis of the antibacterial activity indicated the biosynthetic production of the known compounds ariakemicin, kocurin, naphthyridinomycin, pumilacidins, resistomycin, and surfactin. However, most compounds remained elusive until now. Hence, the obtained results implicate that the microbiome present at the various habitats at the Peruvian coastline is a promising source for heterotrophic bacterial strains showing high potential for the biotechnological production of antibiotics. PMID- 29023398 TI - The Impact of Oxidative Stress on the Bone System in Response to the Space Special Environment. AB - The space special environment mainly includes microgravity, radiation, vacuum and extreme temperature, which seriously threatens an astronaut's health. Bone loss is one of the most significant alterations in mammalians after long-duration habitation in space. In this review, we summarize the crucial roles of major factors-namely radiation and microgravity-in space in oxidative stress generation in living organisms, and the inhibitory effect of oxidative stress on bone formation. We discussed the possible mechanisms of oxidative stress-induced skeletal involution, and listed some countermeasures that have therapeutic potentials for bone loss via oxidative stress antagonism. Future research for better understanding the oxidative stress caused by space environment and the development of countermeasures against oxidative damage accordingly may facilitate human beings to live more safely in space and explore deeper into the universe. PMID- 29023400 TI - Electrostatic Self-Assembled Chitosan-Pectin Nano- and Microparticles for Insulin Delivery. AB - A polyelectrolyte complex system of chitosan-pectin nano- and microparticles was developed to encapsulate the hormone insulin. The aim of this work was to obtain small particles for oral insulin delivery without chemical crosslinkers based on natural and biodegradable polysaccharides. The nano- and microparticles were developed using chitosans (with different degrees of acetylation: 15.0% and 28.8%) and pectin solutions at various charge ratios (n+/n- given by the chitosan/pectin mass ratio) and total charge. Nano- and microparticles were characterized regarding particle size, zeta potential, production yield, encapsulation efficiency, stability in different media, transmission electron microscopy and cytotoxicity assays using Caco-2 cells. The insulin release was evaluated in vitro in simulated gastric and intestinal media. Small-sized particles (~240-~1900 nm) with a maximum production yield of ~34.0% were obtained. The highest encapsulation efficiency (~62.0%) of the system was observed at a charge ratio (n+/n-) 5.00. The system was stable in various media, particularly in simulated gastric fluid (pH 1.2). Transmission electron microscopy (TEM) analysis showed spherical shape particles when insulin was added to the system. In simulated intestinal fluid (pH 6.8), controlled insulin release occurred over 2 h. In vitro tests indicated that the proposed system presents potential as a drug delivery for oral administration of bioactive peptides. PMID- 29023402 TI - Comparison of the Percentage of Voids in the Canal Filling of a Calcium Silicate Based Sealer and Gutta Percha Cones Using Two Obturation Techniques. AB - This study evaluated the root-filling quality of a calcium silicate-based sealer and gutta percha (GP) cones by measuring the percentage of voids. Twenty artificial molar teeth were divided into two groups: one obturated using the single-cone (SC) technique, and the other using the continuous wave (CW) technique. Obturation was performed with GP cones and Endoseal MTA (mineral trioxide aggregate, Maruchi, Wonju, Korea). Obturated teeth were scanned using microcomputed tomography, and the percentage of void volume was calculated in the apical and coronal areas. A linear mixed model was used to determine the differences between the two techniques (p < 0.05). The percentage of voids between the filling materials and root canal walls was not significantly different between the two obturation methods (p > 0.05), except for the CW group, which demonstrated a significantly higher void volume in the coronal area of the distal canal (p < 0.05). The percentage of voids inside the filling material was significantly higher in the CW groups for all of the comparisons (p < 0.05), except in the apical area of the distal canal (p > 0.05). The voids between the filling material and canal wall in the apical area were not significantly different between the two techniques. PMID- 29023401 TI - Effects of Sorghum Malting on Colour, Major Classes of Phenolics and Individual Anthocyanins. AB - Sorghum (Sorghum bicolor) grain contains many health-promoting phytochemicals, including a broad range of phenolic compounds. Malting of cereal grains is known to increase the bioavailability of macro- and micronutrients. However, the detailed effects of malting on sorghum grain anthocyanins, a major class of phenolics that influence the taste and colour of sorghum-based foods, requires further investigation. Eight commercial sorghum hybrids harvested from three regions in eastern Australia were malted and analysed for colour, tannin content, total phenolic content (TPC), flavan-4-ols, total flavonoids, total anthocyanins and 3-deoxyanthocyanins. Grains of all the sorghums were found to be tannin-free. Malting decreased the TPC of all samples. For TPC, the grand means among all the sorghum cultivars for raw and malted grain were 2.77 and 2.48 mg gallic acid equivalents (GAE)/g, respectively. For flavan-4-ols, the grand means for raw and malted sorghum grains were 2.98 and 2.23 abs/mL/g, respectively. Remarkably, total anthocyanin levels more than doubled upon malting whereas total flavonoid levels decreased by 12%. The average abundance of 3-deoxyanthocyanins in raw sorghum grains increased for about 8-fold upon malting. Our results will be valuable for sorghum breeders in the selection of lines for specific end uses and for food scientists developing sorghum-based products. PMID- 29023399 TI - Novel Anti-Tuberculosis Nanodelivery Formulation of Ethambutol with Graphene Oxide. AB - Tuberculosis (TB) is a bacterial disease responsible for millions of infections and preventable deaths each year. Its treatment is complicated by patients' noncompliance due to dosing frequency, lengthy treatment, and adverse side effects associated with current chemotherapy. However, no modifications to the half-a-century old standard chemotherapy have been made based on a nanoformulation strategy to improve pharmacokinetic efficacy. In this study, we have designed a new nanodelivery formulation, using graphene oxide as the nanocarrier, loaded with the anti-TB antibiotic, ethambutol. The designed formulation was characterized using a number of molecular analytical techniques. It was found that sustained release of the drug resulted in better bioavailability. In addition, the designed formulation demonstrated high biocompatibility with mouse fibroblast cells. The anti-TB activity of the nanodelivery formulation was determined using whole-cell resazurin microtiter plate assay, modified-spot culture growth inhibition assay, and biofilm inhibition assay. The nanodelivery formulation showed good anti-mycobacterial activity. The anti-mycobacterial activity of Ethambutol was unaffected by the drug loading and release process. The results of this study demonstrated the potential of this new nanodelivery formulation strategy to be considered for modifying existing chemotherapy to yield more efficacious antibiotic treatment against TB. PMID- 29023403 TI - Electrodermal Activity Sensor for Classification of Calm/Distress Condition. AB - This article introduces a new and unobtrusive wearable monitoring device based on electrodermal activity (EDA) to be used in health-related computing systems. This paper introduces the description of the wearable device capable of acquiring the EDA of a subject in order to detect his/her calm/distress condition from the acquired physiological signals. The lightweight wearable device is placed in the wrist of the subject to allow continuous physiological measurements. With the aim of validating the correct operation of the wearable EDA device, pictures from the International Affective Picture System are used in a control experiment involving fifty participants. The collected signals are processed, features are extracted and a statistical analysis is performed on the calm/distress condition classification. The results show that the wearable device solely based on EDA signal processing reports around 89% accuracy when distinguishing calm condition from distress condition. PMID- 29023404 TI - Novel Synthesis of Core-Shell Silica Nanoparticles for the Capture of Low Molecular Weight Proteins and Peptides. AB - Silica nanoparticles were functionalized with immobilized molecular bait, Cibacron Blue, and a porous polymeric bis-acrylamide shell. These nanoparticles represent a new alternative to capture low molecular weight (LMW) proteins/peptides, that might be potential biomarkers. Functionalized core-shell silica nanoparticles (FCSNP) presented a size distribution of 243.9 +/- 11.6 nm and an estimated surface charge of -38.1 +/- 0.9 mV. The successful attachment of compounds at every stage of synthesis was evidenced by ATR-FTIR. The capture of model peptides was determined by mass spectrometry, indicating that only the peptide with a long sequence of hydrophobic amino acids (alpha zein 34-mer) interacted with the molecular bait. FCSNP excluded the high molecular weight protein (HMW), BSA, and captured LMW proteins (myoglobin and aprotinin), as evidenced by SDS-PAGE. Functionalization of nanoparticles with Cibacron Blue was crucial to capture these molecules. FCSNP were stable after twelve months of storage and maintained a capacity of 3.1-3.4 ug/mg. PMID- 29023405 TI - The Aspergillus flavus Homeobox Gene, hbx1, is Required for Development and Aflatoxin Production. AB - Homeobox proteins, a class of well conserved transcription factors, regulate the expression of targeted genes, especially those involved in development. In filamentous fungi, homeobox genes are required for normal conidiogenesis and fruiting body formation. In the present study, we identified eight homeobox (hbx) genes in the aflatoxin-producing ascomycete, Aspergillus flavus, and determined their respective role in growth, conidiation and sclerotial production. Disruption of seven of the eight genes had little to no effect on fungal growth and development. However, disruption of the homeobox gene AFLA_069100, designated as hbx1, in two morphologically different A. flavus strains, CA14 and AF70, resulted in complete loss of production of conidia and sclerotia as well as aflatoxins B1 and B2, cyclopiazonic acid and aflatrem. Microscopic examination showed that the Deltahbx1 mutants did not produce conidiophores. The inability of Deltahbx1 mutants to produce conidia was related to downregulation of brlA (bristle) and abaA (abacus), regulatory genes for conidiophore development. These mutants also had significant downregulation of the aflatoxin pathway biosynthetic genes aflC, aflD, aflM and the cluster-specific regulatory gene, aflR. Our results demonstrate that hbx1 not only plays a significant role in controlling A. flavus development but is also critical for the production of secondary metabolites, such as aflatoxins. PMID- 29023406 TI - Facile and Green Synthesis of Saturated Cyclic Amines. AB - Single-nitrogen containing saturated cyclic amines are an important part of both natural and synthetic bioactive compounds. A number of methodologies have been developed for the synthesis of aziridines, azetidines, pyrrolidines, piperidines, azepanes and azocanes. This review highlights some facile and green synthetic routes for the synthesis of unsubstituted, multisubstituted and highly functionalized saturated cyclic amines including one-pot, microwave assisted, metal-free, solvent-free and in aqueous media. PMID- 29023407 TI - Halogenated 1-Hydroxynaphthalene-2-Carboxanilides Affecting Photosynthetic Electron Transport in Photosystem II. AB - Series of seventeen new multihalogenated 1-hydroxynaphthalene-2-carboxanilides was prepared and characterized. All the compounds were tested for their activity related to the inhibition of photosynthetic electron transport (PET) in spinach (Spinacia oleracea L.) chloroplasts. 1-Hydroxy-N-phenylnaphthalene-2-carboxamides substituted in the anilide part by 3,5-dichloro-, 4-bromo-3-chloro-, 2,5-dibromo- and 3,4,5-trichloro atoms were the most potent PET inhibitors (IC50 = 5.2, 6.7, 7.6 and 8.0 uM, respectively). The inhibitory activity of these compounds depends on the position and the type of halogen substituents, i.e., on lipophilicity and electronic properties of individual substituents of the anilide part of the molecule. Interactions of the studied compounds with chlorophyll a and aromatic amino acids present in pigment-protein complexes mainly in PS II were documented by fluorescence spectroscopy. The section between P680 and plastoquinone QB in the PET chain occurring on the acceptor side of PS II can be suggested as the site of action of the compounds. The structure-activity relationships are discussed. PMID- 29023408 TI - Rational Design of Nucleoside-Bile Acid Conjugates Incorporating a Triazole Moiety for Anticancer Evaluation and SAR Exploration. AB - Herein we report a study on the synthesis and biological evaluation of a library of nucleoside-bile acid conjugates prepared by combining 2'-deoxyadenosine, 2' deoxyguanosine, 2'-deoxyuridine as well as adenosine and guanosine derivatives with cheno-, urso-, nor-cheno-, nor-urso- and taurourso-desoxycholic acid derivatives by means of the click reaction. The new nucleoside-bile acid conjugates incorporating a triazole moiety were tested in vitro against leukemic K562 and HCT116 colon carcinoma, as well as on normal fibroblast cells. Six compounds displayed interesting anti-proliferative activity against the selected cancer lines and no cytotoxic effects against normal fibroblasts. A possible structure activity relationship was also investigated. PMID- 29023409 TI - A High Stability Time Difference Readout Technique of RTD-Fluxgate Sensors. AB - The performance of Residence Times Difference (RTD)-fluxgate sensors is closely related to the time difference readout technique. The noise of the induction signal affects the quality of the output signal of the following circuit and the time difference detection, so the stability of the sensor is limited. Based on the analysis of the uncertainty of the RTD-fluxgate using the Bidirectional Magnetic Saturation Time Difference (BMSTD) readout scheme, the relationship between the saturation state of the magnetic core and the target (DC) magnetic field is studied in this article. It is proposed that combining the excitation and induction signals can provide the Negative Magnetic Saturation Time (NMST), which is a detection quantity used to measure the target magnetic field. Also, a mathematical model of output response between NMST and the target magnetic field is established, which analyzes the output NMST and sensitivity of the RTD fluxgate sensor under different excitation conditions and is compared to the BMSTD readout scheme. The experiment results indicate that this technique can effectively reduce the noise influence. The fluctuation of time difference is less than +/-0.1 MUs in a target magnetic field range of +/-5 * 104 nT. The accuracy and stability of the sensor are improved, so the RTD-fluxgate using the readout technique of high stability time difference is suitable for detecting weak magnetic fields. PMID- 29023411 TI - Scientific Study of Gentiana kurroo Royle. AB - The present investigation was carried out to review and highlight the potential phytochemicals and medicinal phenomena of the critically endangered medicinal plant, Gentiana kurroo Royle of the western and north-western Himalayas. The medicinal plant is heavily exploited for root and rhizome. Due to its endemic nature and the high rate of exploitation from its natural habitat, this species had become critically endangered. The phytochemical screening of the plant revealed that the plant contains some vital phyto-constituents (iridoids, xanthones, C-glucoxanthone mangiferin, and C-glucoflavones) that have a medicinal value for various acute and chronic diseases. Several researchers have carried out experimental work to validate the folkloric use of the medicinal plant for different ailments like antibacterial, antioxidant, anti-arthritic, anti inflammatory, analgesic activities and anti-diabetic activity. However, it is yet to be confirmed the antifungal activity of the same plant. Because of endemic nature and high rate of exploitation there is need for alternative method called bio-prospecting of Endophytes from the plant, to carry out the production and characterization of bioactive metabolites for pharmacological uses and can become a conservative tool for the medicinal plant. PMID- 29023410 TI - Long Term Osmotic Mini Pump Treatment with Alpha-MSH Improves Myocardial Function in Zucker Diabetic Fatty Rats. AB - The present investigation evaluates the cardiovascular effects of the anorexigenic mediator alpha-melanocyte stimulating hormone (MSH), in a rat model of type 2 diabetes. Osmotic mini pumps delivering MSH or vehicle, for 6 weeks, were surgically implanted in Zucker Diabetic Fatty (ZDF) rats. Serum parameters, blood pressure, and weight gain were monitored along with oral glucose tolerance (OGTT). Echocardiography was conducted and, following sacrifice, the effects of treatment on ischemia/reperfusion cardiac injury were assessed using the isolated working heart method. Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity was measured to evaluate levels of oxidative stress, and force measurements were performed on isolated cardiomyocytes to determine calcium sensitivity, active tension and myofilament co-operation. Vascular status was also evaluated on isolated arterioles using a contractile force measurement setup. The echocardiographic parameters ejection fraction (EF), fractional shortening (FS), isovolumetric relaxation time (IVRT), mitral annular plane systolic excursion (MAPSE), and Tei-index were significantly better in the MSH treated group compared to ZDF controls. Isolated working heart aortic and coronary flow was increased in treated rats, and higher Hill coefficient indicated better myofilament co-operation in the MSH-treated group. We conclude that MSH improves global heart functions in ZDF rats, but these effects are not related to the vascular status. PMID- 29023412 TI - Post-Translational Modification of Human Histone by Wide Tolerance of Acetylation. AB - Histone acetylation adds an acetyl group on the lysine residue commonly found within the N-terminal tail protruding from the histone core of the nucleosome, and is important for chromosome structure and function in gene transcription and chromatin remodeling. Acetylation may also occur on other residues additional to lysine, but have not been thoroughly investigated at the proteomics level. Here we report a wide tolerance acetylation study mimicking the addition of 42 +/- 0.5 Da delta mass modification on undefined amino acid residues of histones by shotgun proteomics using liquid chromatography-tandem mass spectrometry. A multi blind spectral alignment algorithm with a wide peptide tolerance revealed frequent occurrence of 42 +/- 0.5 Da modifications at lysine (K), serine (S) and threonine (T) residues in human histones from kidney tissues. Precision delta mass analysis identified acetylation (42.011 +/- 0.004 Da) and trimethylation (42.047 +/- 0.002 Da) modifications within the delta mass range. A specific antibody was produced to validate the acetylated T22 of human histone H3 (H3T22ac) by immune assays. Thus, we demonstrated that the wide tolerance acetylation approach identified histone acetylation as well as modification variants commonly associated with acetylation at undefined residues additional to lysine. PMID- 29023413 TI - Diallylthiosulfinate (Allicin), a Volatile Antimicrobial from Garlic (Allium sativum), Kills Human Lung Pathogenic Bacteria, Including MDR Strains, as a Vapor. AB - Garlic (Allium sativum) has potent antimicrobial activity due to allicin (diallylthiosulfinate) synthesized by enzyme catalysis in damaged garlic tissues. Allicin gives crushed garlic its characteristic odor and its volatility makes it potentially useful for combating lung infections. Allicin was synthesized (>98% pure) by oxidation of diallyl disulfide by H2O2 using formic acid as a catalyst and the growth inhibitory effect of allicin vapor and allicin in solution to clinical isolates of lung pathogenic bacteria from the genera Pseudomonas, Streptococcus, and Staphylococcus, including multi-drug resistant (MDR) strains, was demonstrated. Minimal inhibitory (MIC) and minimal bactericidal concentrations (MBC) were determined and compared to clinical antibiotics using standard European Committee on Antimicrobial Susceptibility Testing (EUCAST) procedures. The cytotoxicity of allicin to human lung and colon epithelial and murine fibroblast cells was tested in vitro and shown to be ameliorated by glutathione (GSH). Similarly, the sensitivity of rat precision-cut lung slices (PCLS) to allicin was decreased by raising the [GSH] to the approximate blood plasma level of 1 mM. Because allicin inhibited bacterial growth as a vapor, it could be used to combat bacterial lung infections via direct inhalation. Since there are no volatile antibiotics available to treat pulmonary infections, allicin, particularly at sublethal doses in combination with oral antibiotics, could make a valuable addition to currently available treatments. PMID- 29023414 TI - 3,5,6,7,8,3',4'-Heptamethoxyflavone Ameliorates Depressive-Like Behavior and Hippocampal Neurochemical Changes in Chronic Unpredictable Mild Stressed Mice by Regulating the Brain-Derived Neurotrophic Factor: Requirement for ERK Activation. AB - We previously reported that the subcutaneous administration of 3,5,6,7,8,3',4' heptamethoxyflavone (HMF), a citrus polymethoxyflavone, attenuated depressive like behavior and increased the expression of brain-derived neurotrophic factor (BDNF) in the hippocampus of a corticosterone-induced depression-like mouse model. We herein demonstrated that (1) HMF was detectable in the brain 10 and 30 min after its oral administration, (2) orally administered HMF improved chronic unpredictable mild stress (CUMS)-induced pathological conditions, including body weight loss and depressive-like behavior, and CUMS-induced neurochemical changes, such as reduction in BDNF expression, decrease in neurogenesis, and decreased level of phosphorylated calcium-calmodulin-dependent protein kinase II in the hippocampus, and (3) these effects of HMF were inhibited by the pre administration of U0126, a mitogen-activated protein (MAP) kinase inhibitor. These results suggest that orally administered HMF is beneficial for the upregulation of BDNF in the hippocampus via the extracellular signal-regulated kinase1/2 (ERK1/2)/MAP system, which may account for its antidepression effects. PMID- 29023415 TI - Characterization, Function, and Transcriptional Profiling Analysis of 3-Hydroxy-3 methylglutaryl-CoA Synthase Gene (GbHMGS1) towards Stresses and Exogenous Hormone Treatments in Ginkgo biloba. AB - 3-Hydroxy-3-methylglutaryl-CoA synthase (HMGS) is one of the rate-limiting enzymes in the mevalonate pathway as it catalyzes the condensation of acetoacetyl CoA to form 3-hydroxy-3-methylglutaryl-CoA. In this study, A HMGS gene (designated as GbHMGS1) was cloned from Ginkgo biloba for the first time. GbHMGS1 contained a 1422-bp open-reading frame encoding 474 amino acids. Comparative and bioinformatics analysis revealed that GbHMGS1 was extensively homologous to HMGSs from other plant species. Phylogenetic analysis indicated that the GbHMGS1 belonged to the plant HMGS superfamily, sharing a common evolutionary ancestor with other HMGSs, and had a further relationship with other gymnosperm species. The yeast complement assay of GbHMGS1 in HMGS-deficient Saccharomyces cerevisiae strain YSC6274 demonstrated that GbHMGS1 gene encodes a functional HMGS enzyme. The recombinant protein of GbHMGS1 was successfully expressed in E. coli. The in vitro enzyme activity assay showed that the kcat and Km values of GbHMGS1 were 195.4 min-1 and 689 MUM, respectively. GbHMGS1 was constitutively expressed in all tested tissues, including the roots, stems, leaves, female flowers, male flowers and fruits. The transcript accumulation for GbHMGS1 was highest in the leaves. Expression profiling analyses revealed that GbHMGS1 expression was induced by abiotic stresses (ultraviolet B and cold) and hormone treatments (salicylic acid, methyl jasmonate, and ethephon) in G. biloba, indicating that GbHMGS1 gene was involved in the response to environmental stresses and plant hormones. PMID- 29023419 TI - Synthesis and Biological Activity of Novel (Z)- and (E)-Verbenone Oxime Esters. AB - Twenty-seven (Z)- and (E)-verbenone derivatives bearing an oxime ester moiety were designed and synthesized in search of novel bioactive molecules. Their structures were confirmed by UV-Vis, FTIR, NMR, ESI-MS, and elemental analysis. The antifungal and herbicidal activities of the target compounds were preliminarily evaluated. As a result, compound (E)-4n (R = beta-pyridyl) exhibited excellent antifungal activity with growth inhibition percentages of 92.2%, 80.0% and 76.3% against Alternaria solani, Physalospora piricola, and Cercospora arachidicola at 50 ug/mL, showing comparable or better antifungal activity than the commercial fungicide chlorothalonil with growth inhibition of 96.1%, 75.0% and 73.3%, respectively, and 1.7-5.5-fold more growth inhibition than its stereoisomer (Z)-4n (R = beta-pyridyl) with inhibition rates of 22.6%, 28.6% and 43.7%, respectively. In addition, seven compounds displayed significant growth inhibition activity of over 90% against the root of rape (Brassica campestris) at 100 ug/mL, exhibiting much better herbicidal activity than the commercial herbicide flumioxazin with a 63.0% growth inhibition. Among these seven compounds, compound (E)-4n (R = beta-pyridyl) inhibited growth by 92.1%, which was 1.7-fold more than its stereoisomer (Z)-4n (R = beta-pyridyl) which inhibited growth by 54.0%. PMID- 29023416 TI - Neuro-Coagulopathy: Blood Coagulation Factors in Central Nervous System Diseases. AB - Blood coagulation factors and other proteins, with modulatory effects or modulated by the coagulation cascade have been reported to affect the pathophysiology of the central nervous system (CNS). The protease-activated receptors (PARs) pathway can be considered the central hub of this regulatory network, mainly through thrombin or activated protein C (aPC). These proteins, in fact, showed peculiar properties, being able to interfere with synaptic homeostasis other than coagulation itself. These specific functions modulate neuronal networks, acting both on resident (neurons, astrocytes, and microglia) as well as circulating immune system cells and the extracellular matrix. The pleiotropy of these effects is produced through different receptors, expressed in various cell types, in a dose- and time-dependent pattern. We reviewed how these pathways may be involved in neurodegenerative diseases (amyotrophic lateral sclerosis, Alzheimer's and Parkinson's diseases), multiple sclerosis, ischemic stroke and post-ischemic epilepsy, CNS cancer, addiction, and mental health. These data open up a new path for the potential therapeutic use of the agonist/antagonist of these proteins in the management of several central nervous system diseases. PMID- 29023420 TI - Probiotics for the Prevention of Antibiotic-Associated Diarrhea in Outpatients-A Systematic Review and Meta-Analysis. AB - A common adverse effect of antibiotic use is diarrhea. Probiotics are living microorganisms, which, upon oral ingestion, may prevent antibiotic-associated diarrhea (AAD) by the normalization of an unbalanced gastrointestinal flora. The objective of this systematic review was to assess the benefits and harms of probiotics used for the prevention of AAD in an outpatient setting. A search of the PubMed database was conducted and yielded a total of 17 RCTs with 3631 participants to be included in the review. A meta-analysis was conducted for the primary outcome: the incidence of AAD. The pooled results found that AAD was present in 8.0% of the probiotic group compared to 17.7% in the control group (RR 0.49, 95% CI 0.36 to 0.66; I2 = 58%), and the species-specific results were similar regarding the probiotic strains L. rhamnosus GG and S. boulardii. However, the overall quality of the included studies was moderate. A meta analysis of the ten trials reporting adverse events demonstrated no statistically significant differences in the incidence of adverse events between the intervention and control group (RD 0.00, 95% CI -0.02 to 0.02, 2.363 participants). The results suggests that probiotic use may be beneficial in the prevention of AAD among outpatients. Furthermore, the use of probiotics appears safe. PMID- 29023418 TI - Association between Stress and the HPA Axis in the Atopic Dermatitis. AB - The hypothalamic-pituitary-adrenal (HPA) axis is one of the body's neuroendocrine networks that responds to psychological stress (PS). In the skin, there exists a peripheral HPA axis similar to the central axis. Glucocorticoids (GCs) are key effector molecules of the HPA axis and are essential for cutaneous homeostasis. Atopic dermatitis (AD) is a condition typically characterized by a chronic relapsing course that often results in PS. HPA dysfunction is present in AD patients by the decreased response of GCs elevation to stress as compared to those unaffected by AD. Nevertheless, in skin, acute PS activates several metabolic responses that are of immediate benefit to the host. During the acute phase of PS, increased endogenous GCs have been shown to provide benefit rather than by aggravating cutaneous inflammatory dermatoses. However, a chronic T helper cell type 2 (Th2) predominant cytokine profile acts as a negative feedback loop to blunt the HPA axis response in AD. In this article, we reviewed the role of CRF, pro-opiomelanocortin (POMC)-derived peptides, GCs of the HPA, and 11beta hydroxysteroid dehydrogenase 1 (11beta-HSD1) in AD, with a discussion of the pathogenetic mechanisms of inflammation and skin barrier functions, including antimicrobial defense, and their association with PS. PMID- 29023417 TI - Control of NK Cell Activation by Immune Checkpoint Molecules. AB - The development of cancer and chronic infections is facilitated by many subversion mechanisms, among which enhanced expression of immune checkpoints molecules, such as programmed death-1 (PD-1) and cytotoxic T lymphocyte associated antigen 4 (CTLA-4), on exhausted T cells. Recently, immune checkpoint inhibitors have shown remarkable efficiency in the treatment of a number of cancers. However, expression of immune checkpoints on natural killer (NK) cells and its functional consequences on NK cell effector functions are much less explored. In this review, we focus on the current knowledge on expression of various immune checkpoints in NK cells, how it can alter NK cell-mediated cytotoxicity and cytokine production. Dissecting the role of these inhibitory mechanisms in NK cells is critical for the full understanding of the mode of action of immunotherapies using checkpoint inhibitors in the treatment of cancers and chronic infections. PMID- 29023423 TI - New Strategy for the Immobilization of Lipases on Glyoxyl-Agarose Supports: Production of Robust Biocatalysts for Natural Oil Transformation. AB - Immobilization on Glyoxyl-agarose support (Gx) is one of the best strategies to stabilize enzymes. However, the strategy is difficult to apply at neutral pH when most enzymes are stable and, even when possible, produces labile derivatives. This work contributes to overcoming this hurdle through a strategy that combines solid-phase amination, presence of key additives, and derivative basification. To this end, aminated industrial lipases from Candida artarctica (CAL), Thermomyces lunuginosus (TLL), and the recombinant Geobacillus thermocatenulatus (BTL2) were immobilized on Gx for the first time at neutral pH using anthranilic acid (AA) or DTT as additives (immobilization yields >70%; recovered activities 37.5-76.7%). The spectroscopic evidence suggests nucleophilic catalysis and/or adsorption as the initial lipase immobilization events. Subsequent basification drastically increases the stability of BTL2-glyoxyl derivatives under harsh conditions (t1/2, from 2.1-54.5 h at 70 degrees C; from 10.2 h-140 h in 80% dioxane). The novel BTL2-derivatives were active and selective in fish oil hydrolysis (1.0-1.8 MUmol of polyunsaturated fatty acids (PUFAs) min-1.g-1) whereas the selected TLL derivative was as active and stable in biodiesel production (fatty ethyl esters, EE) as the commercial Novozyme(r)-435 after ten reaction cycles (~70% EE). Therefore, the potential of the proposed strategy in producing suitable biocatalysts for industrial processes was demonstrated. PMID- 29023421 TI - Helicobacter pylori Vacuolating Toxin and Gastric Cancer. AB - Helicobacter pylori VacA is a channel-forming toxin unrelated to other known bacterial toxins. Most H. pylori strains contain a vacA gene, but there is marked variation among strains in VacA toxin activity. This variation is attributable to strain-specific variations in VacA amino acid sequences, as well as variations in the levels of VacA transcription and secretion. In this review, we discuss epidemiologic studies showing an association between specific vacA allelic types and gastric cancer, as well as studies that have used animal models to investigate VacA activities relevant to gastric cancer. We also discuss the mechanisms by which VacA-induced cellular alterations may contribute to the pathogenesis of gastric cancer. PMID- 29023426 TI - Nanometric MIL-125-NH2 Metal-Organic Framework as a Potential Nerve Agent Antidote Carrier. AB - The three-dimensional (3D) microporous titanium aminoterephthalate MIL-125-NH2 (MIL: Material of Institut Lavoisier) was successfully isolated as monodispersed nanoparticles, which are compatible with intravenous administration, by using a simple, safe and low-cost synthetic approach (100 degrees C/32 h under atmospheric pressure) so that for the first time it could be considered for encapsulation and the release of drugs. The nerve agent antidote 2 [(hydroxyimino)methyl]-1-methyl-pyridinium chloride (2-PAM or pralidoxime) was effectively encapsulated into the pores of MIL-125-NH2 as a result of the interactions between 2-PAM and the pore walls being mediated by pi-stacking and hydrogen bonds, as deduced from infrared spectroscopy and Monte Carlo simulation studies. Finally, colloidal solutions of MIL-125-NH2 nanoparticles exhibited remarkable stability in different organic media, aqueous solutions at different pH and under relevant physiological conditions over time (24 h). 2-PAM was rapidly released from the pores of MIL-125-NH2 in vitro. PMID- 29023422 TI - Plant Ribosome-Inactivating Proteins: Progesses, Challenges and Biotechnological Applications (and a Few Digressions). AB - Plant ribosome-inactivating protein (RIP) toxins are EC3.2.2.22 N-glycosidases, found among most plant species encoded as small gene families, distributed in several tissues being endowed with defensive functions against fungal or viral infections. The two main plant RIP classes include type I (monomeric) and type II (dimeric) as the prototype ricin holotoxin from Ricinus communis that is composed of a catalytic active A chain linked via a disulphide bridge to a B-lectin domain that mediates efficient endocytosis in eukaryotic cells. Plant RIPs can recognize a universally conserved stem-loop, known as the alpha-sarcin/ ricin loop or SRL structure in 23S/25S/28S rRNA. By depurinating a single adenine (A4324 in 28S rat rRNA), they can irreversibly arrest protein translation and trigger cell death in the intoxicated mammalian cell. Besides their useful application as potential weapons against infected/tumor cells, ricin was also used in bio-terroristic attacks and, as such, constitutes a major concern. In this review, we aim to summarize past studies and more recent progresses made studying plant RIPs and discuss successful approaches that might help overcoming some of the bottlenecks encountered during the development of their biomedical applications. PMID- 29023425 TI - Screening a Natural Product-Based Library against Kinetoplastid Parasites. AB - Kinetoplastid parasites cause vector-borne parasitic diseases including leishmaniasis, human African trypanosomiasis (HAT) and Chagas disease. These Neglected Tropical Diseases (NTDs) impact on some of the world's lowest socioeconomic communities. Current treatments for these diseases cause severe toxicity and have limited efficacy, highlighting the need to identify new treatments. In this study, the Davis open access natural product-based library was screened against kinetoplastids (Leishmania donovani DD8, Trypanosoma brucei brucei and Trypanosoma cruzi) using phenotypic assays. The aim of this study was to identify hit compounds, with a focus on improved efficacy, selectivity and potential to target several kinetoplastid parasites. The IC50 values of the natural products were obtained for L. donovani DD8, T. b. brucei and T. cruzi in addition to cytotoxicity against the mammalian cell lines, HEK-293, 3T3 and THP-1 cell lines were determined to ascertain parasite selectivity. Thirty-one compounds were identified with IC50 values of <= 10 uM against the kinetoplastid parasites tested. Lissoclinotoxin E (1) was the only compound identified with activity across all three investigated parasites, exhibiting IC50 values < 5 uM. In this study, natural products with the potential to be new chemical starting points for drug discovery efforts for kinetoplastid diseases were identified. PMID- 29023428 TI - Effect of Nanoparticles on the Morphology, Thermal, and Electrical Properties of Low-Density Polyethylene after Thermal Aging. AB - This paper investigates the morphology, thermal, and electrical properties of LDPE (low-density polyethylene)-based nanocomposites after thermal aging. The FTIR (Fourier transform infrared spectroscopy) spectra results show that thermo oxidative reactions occur in neat LDPE and LDPE/SiO2 nanocomposites when the aging time is 35 days and in LDPE/MgO nanocomposites when the aging time is 77 days. Specifically, LDPE/MgO nanocomposites delay the appearance of thermo oxidative reactions, showing anti-thermal aging ability. Furthermore, nanocomposites present lower onset degradation temperature than neat LDPE, showing better thermal stabilization. With regard to the electrical properties, nanocomposites maintain the ability to suppress space charge accumulation after thermal aging. Additionally, in comparison with SiO2 nanocomposites and neat LDPE, the permittivity of LDPE/MgO nanocomposites changes slightly after thermal aging. It is concluded that LDPE/MgO nanocomposites have better insulation properties than neat LDPE after thermal aging, which may be caused by the interface introduced by the nanoparticles. PMID- 29023427 TI - Hierarchical AuNPs-Loaded Fe3O4/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities. AB - Gold nanoparticles (AuNPs) have attracted widespread attention for their excellent catalytic activity, as well as their unusual physical and chemical properties. The main challenges come from the agglomeration and time-consuming separation of gold nanoparticles, which have greatly baffled the development and application in liquid phase selective reduction. To solve these problems, we propose the preparation of polyvinyl alcohol(PVA)/poly(acrylic acid)(PAA)/Fe3O4 nanocomposites with loaded AuNPs. The obtained PVA/PAA/Fe3O4 composite membrane by electrospinning demonstrated high structural stability, a large specific surface area, and more active sites, which is conducive to promoting good dispersion of AuNPs on membrane surfaces. The subsequently prepared PVA/PAA/Fe3O4@AuNPs nanocomposites exhibited satisfactory nanostructures, robust thermal stability, and a favorable magnetic response for recycling. In addition, the PVA/PAA/Fe3O4@AuNPs nanocomposites showed a remarkable catalytic capacity in the catalytic reduction of p-nitrophenol and 2-nitroaniline solutions. In addition, the regeneration studies toward p-nitrophenol for different consecutive cycles demonstrate that the as-prepared PVA/PAA/Fe3O4@AuNPs nanocomposites have outstanding stability and recycling in catalytic reduction. PMID- 29023429 TI - MiR-150 Inhibits Cell Growth In Vitro and In Vivo by Restraining the RAB11A/WNT/beta-Catenin Pathway in Thyroid Cancer. AB - BACKGROUND Emerging evidence has shown that downregulation or upregulation of microRNAs (miRNAs) plays an important role in the development and progression of thyroid cancer (TC). However, the potential role of miR-150 and its biological function in TC remains largely unclear. MATERIAL AND METHODS Real-time polymerase chain reaction (RT-qPCR) was employed to detect the expression level of miR-150 and RAB11A in human TC tissue and human normal thyroid tissue. MTT assay, colony formation assay, flow cytometry cell cycle, and apoptosis assay were used to investigate the role of miR-150 and RAB11A on the malignant phenotypes in vitro. Nude mouse xenograft assay and western blot assay was used to verify the function of miR-150 in vivo. Western blot assay and immunofluorescence assay were used to detect the activation of WNT/beta-catenin pathway mediated by miR-150 and RAB11A. EGFP reporter assay, RT-qPCR assay, and western blot assay were used to validate the regulation relationship. RESULTS This study demonstrated that miR-150 expression in human TC tissues was markedly downregulated. Moreover, overexpression of miR-150 markedly inhibited cell proliferation via inducing the cell cycle arrest and promoting cell apoptosis by directly targeting RAB11A in vitro and suppressing tumor growth in vivo. However, overexpression of RAB11A promoted cell malignant phenotypes. In addition, miR-150 restrained the RAB11A mediated WNT/beta-catenin activation in TC cells. CONCLUSIONS miR-150 may function as a suppressor gene in TC cells by inhibiting the RAB11A/WNT/beta catenin pathway. PMID- 29023430 TI - Vaccination Coverage for Selected Vaccines, Exemption Rates, and Provisional Enrollment Among Children in Kindergarten - United States, 2016-17 School Year. AB - State and local school vaccination requirements help protect students and communities against vaccine-preventable diseases (1). CDC reports vaccination coverage and exemption data for children attending kindergarten (kindergartners) collected by federally funded immunization programs in the United States.* The typical age range for kindergartners is 4-6 years. Although vaccination requirements vary by state (the District of Columbia [DC] is counted as a state in this report.), the Advisory Committee on Immunization Practices recommends that children in this age range have received, among other vaccinations, 5 doses of diphtheria, tetanus, and acellular pertussis vaccine (DTaP), 2 doses of measles, mumps, and rubella vaccine (MMR), and 2 doses of varicella vaccine (2). This report summarizes 2016-17 school year MMR, DTaP, and varicella vaccination coverage reported by immunization programs in 49 states, exemptions in 50 states, and kindergartners provisionally enrolled or within a grace period in 27 states. Median vaccination coverage? was 94.5% for the state-required number of doses of DTaP; 94.0% for 2 doses of MMR; and 93.8% for 2 doses of varicella vaccine. The median percentage of kindergartners with an exemption from at least one vaccineS was 2.0%, similar to 2015-16 (1.9%). Median grace period and provisional enrollment was 2.0%. Vaccination coverage remains consistently high and exemptions low at state and national levels. Local-level vaccination coverage data provide opportunities for immunization programs to identify schools, districts, counties, or regions susceptible to vaccine-preventable diseases and for schools to address undervaccination through implementation of existing state and local vaccination policies (1) to protect communities through increased coverage. PMID- 29023432 TI - Erratum: Vol. 66, No. 35. PMID- 29023424 TI - Dietary Anthocyanins and Insulin Resistance: When Food Becomes a Medicine. AB - Insulin resistance is an abnormal physiological state that occurs when insulin from pancreatic beta-cells is unable to trigger a signal transduction pathway in target organs such as the liver, muscles and adipose tissues. The loss of insulin sensitivity is generally associated with persistent hyperglycemia (diabetes), hyperinsulinemia, fatty acids and/or lipid dysregulation which are often prevalent under obesity conditions. Hence, insulin sensitizers are one class of drugs currently employed to treat diabetes and associated metabolic disorders. A number of natural products that act through multiple mechanisms have also been identified to enhance insulin sensitivity in target organs. One group of such compounds that gained interest in recent years are the dietary anthocyanins. Data from their in vitro, in vivo and clinical studies are scrutinized in this communication to show their potential health benefit through ameliorating insulin resistance. Specific mechanism of action ranging from targeting specific signal transduction receptors/enzymes to the general antioxidant and anti-inflammatory mechanisms of insulin resistance are presented. PMID- 29023433 TI - QuickStats: Percentage* of All Visits by Patients Aged >=65 Years to Office-Based Physicians? Made by Patients with Hypertension,S by Sex and Metropolitan Statistical Area (MSA) - National Ambulatory Medical Care Survey, United States, 2012-2015. AB - During 2012-2015, patients aged >=65 years with hypertension documented in the medical record accounted for 54% of all office-based physician visits made by patients aged >=65 years, with a higher percentage of visits in non-MSAs (59%) than MSAs (53%). Among women, the percentage of visits was also higher in non MSAs than in MSAs (59% versus 53%). The difference among men was not statistically significant. PMID- 29023431 TI - HIV Care Outcomes Among Hispanics or Latinos with Diagnosed HIV Infection - United States, 2015. AB - Data from CDC's National HIV Surveillance System (NHSS)* are used to monitor progress toward achieving national goals set forth in the Division of HIV/AIDS Prevention's Strategic Plan (1) and other federal directives? for human immunodeficiency virus (HIV) testing, care, and treatment outcomes and HIV related disparities in the United States. Recent data indicate that Hispanics or LatinosS are disproportionately affected by HIV infection. Hispanics or Latinos living with diagnosed HIV infection have lower levels of care and viral suppression than do non-Hispanic whites but higher levels than those reported among blacks or African Americans (2). The annual rate of diagnosis of HIV infection among Hispanics or Latinos is three times that of non-Hispanic whites (3), and a recent study found increases in incidence of HIV infection among Hispanic or Latino men who have sex with men (4). Among persons with HIV infection diagnosed through 2013 who were alive at year-end 2014, 70.2% of Hispanics or Latinos received any HIV medical care compared with 76.1% of non Hispanic whites (2). CDC used NHSS data to describe HIV care outcomes among Hispanics or Latinos. Among male Hispanics or Latinos with HIV infection diagnosed in 2015, fewer males with infection attributed to heterosexual contact (34.6%) had their infection diagnosed at an early stage (stage 1 = 12.0%, stage 2 = 22.6%) than males with infection attributed to male-to-male sexual contact (60.9%: stage 1 = 25.2%, stage 2 = 35.7%). The percentage of Hispanics or Latinos linked to care after diagnosis of HIV infection increased with increasing age; females aged 45-54 years with infection attributed to injection drug use (IDU) accounted for the lowest percentage (61.4%) of persons linked to care. Among Hispanics or Latinos living with HIV infection, care and viral suppression were lower among selected age groups of Hispanic or Latino males with HIV infection attributed to IDU than among males with infection attributed to male-to-male sexual contact and male-to-male sexual contact and IDU. Intensified efforts to develop and implement effective interventions and public health strategies that increase engagement in care and viral suppression among Hispanics or Latinos (3,5), particularly those who inject drugs, are needed to achieve national HIV prevention goals. PMID- 29023434 TI - Announcement: Global Handwashing Day - October 15, 2017. PMID- 29023435 TI - Notes from the Field: Multiple Cases of Seoul Virus Infection in a Household with Infected Pet Rats - Tennessee, December 2016-April 2017. PMID- 29023436 TI - Responsible implementation of expanded carrier screening. AB - This corrects the article DOI: 10.1038/ejhg.2015.271. PMID- 29023437 TI - 22 Years of predictive testing for Huntington's disease: the experience of the UK Huntington's Prediction Consortium. AB - This corrects the article DOI: 10.1038/ejhg.2016.36. PMID- 29023438 TI - The TAD-pathway for GWAS signals. PMID- 29023439 TI - Reconstructing the population history of the largest tribe of India: the Dravidian speaking Gond. AB - This corrects the article DOI: 10.1038/ejhg.2016.198. PMID- 29023440 TI - Glaucoma spectrum and age-related prevalence of individuals with FOXC1 and PITX2 variants. AB - This corrects the article DOI: 10.1038/ejhg.2017.59. PMID- 29023441 TI - Women are underrepresented in computational biology: An analysis of the scholarly literature in biology, computer science and computational biology. AB - While women are generally underrepresented in STEM fields, there are noticeable differences between fields. For instance, the gender ratio in biology is more balanced than in computer science. We were interested in how this difference is reflected in the interdisciplinary field of computational/quantitative biology. To this end, we examined the proportion of female authors in publications from the PubMed and arXiv databases. There are fewer female authors on research papers in computational biology, as compared to biology in general. This is true across authorship position, year, and journal impact factor. A comparison with arXiv shows that quantitative biology papers have a higher ratio of female authors than computer science papers, placing computational biology in between its two parent fields in terms of gender representation. Both in biology and in computational biology, a female last author increases the probability of other authors on the paper being female, pointing to a potential role of female PIs in influencing the gender balance. PMID- 29023442 TI - Environmental perturbations lead to extensive directional shifts in RNA processing. AB - Environmental perturbations have large effects on both organismal and cellular traits, including gene expression, but the extent to which the environment affects RNA processing remains largely uncharacterized. Recent studies have identified a large number of genetic variants associated with variation in RNA processing that also have an important role in complex traits; yet we do not know in which contexts the different underlying isoforms are used. Here, we comprehensively characterized changes in RNA processing events across 89 environments in five human cell types and identified 15,300 event shifts (FDR = 15%) comprised of eight event types in over 4,000 genes. Many of these changes occur consistently in the same direction across conditions, indicative of global regulation by trans factors. Accordingly, we demonstrate that environmental modulation of splicing factor binding predicts shifts in intron retention, and that binding of transcription factors predicts shifts in alternative first exon (AFE) usage in response to specific treatments. We validated the mechanism hypothesized for AFE in two independent datasets. Using ATAC-seq, we found altered binding of 64 factors in response to selenium at sites of AFE shift, including ELF2 and other factors in the ETS family. We also performed AFE QTL mapping in 373 individuals and found an enrichment for SNPs predicted to disrupt binding of the ELF2 factor. Together, these results demonstrate that RNA processing is dramatically changed in response to environmental perturbations through specific mechanisms regulated by trans factors. PMID- 29023444 TI - Ten simple rules for writing a response to reviewers. PMID- 29023443 TI - Systematic, network-based characterization of therapeutic target inhibitors. AB - A large fraction of the proteins that are being identified as key tumor dependencies represent poor pharmacological targets or lack clinically-relevant small-molecule inhibitors. Availability of fully generalizable approaches for the systematic and efficient prioritization of tumor-context specific protein activity inhibitors would thus have significant translational value. Unfortunately, inhibitor effects on protein activity cannot be directly measured in systematic and proteome-wide fashion by conventional biochemical assays. We introduce OncoLead, a novel network based approach for the systematic prioritization of candidate inhibitors for arbitrary targets of therapeutic interest. In vitro and in vivo validation confirmed that OncoLead analysis can recapitulate known inhibitors as well as prioritize novel, context-specific inhibitors of difficult targets, such as MYC and STAT3. We used OncoLead to generate the first unbiased drug/regulator interaction map, representing compounds modulating the activity of cancer-relevant transcription factors, with potential in precision medicine. PMID- 29023447 TI - Network approaches and applications in biology. PMID- 29023445 TI - Identifying direct contacts between protein complex subunits from their conditional dependence in proteomics datasets. AB - Determining the three dimensional arrangement of proteins in a complex is highly beneficial for uncovering mechanistic function and interpreting genetic variation in coding genes comprising protein complexes. There are several methods for determining co-complex interactions between proteins, among them co-fractionation / mass spectrometry (CF-MS), but it remains difficult to identify directly contacting subunits within a multi-protein complex. Correlation analysis of CF-MS profiles shows promise in detecting protein complexes as a whole but is limited in its ability to infer direct physical contacts among proteins in sub-complexes. To identify direct protein-protein contacts within human protein complexes we learn a sparse conditional dependency graph from approximately 3,000 CF-MS experiments on human cell lines. We show substantial performance gains in estimating direct interactions compared to correlation analysis on a benchmark of large protein complexes with solved three-dimensional structures. We demonstrate the method's value in determining the three dimensional arrangement of proteins by making predictions for complexes without known structure (the exocyst and tRNA multi-synthetase complex) and by establishing evidence for the structural position of a recently discovered component of the core human EKC/KEOPS complex, GON7/C14ORF142, providing a more complete 3D model of the complex. Direct contact prediction provides easily calculable additional structural information for large scale protein complex mapping studies and should be broadly applicable across organisms as more CF-MS datasets become available. PMID- 29023446 TI - Towards elimination of visceral leishmaniasis in the Indian subcontinent Translating research to practice to public health. AB - BACKGROUND: The decade following the Regional Strategic Framework for Visceral Leishmaniasis (VL) elimination in 2005 has shown compelling progress in the reduction of VL burden in the Indian subcontinent. The Special Programme for Research and Training in Tropical Diseases (TDR), hosted by the World Health Organization (WHO) and other stakeholders, has coordinated and financed research for the development of new innovative tools and strategies to support the regional VL elimination initiative. This paper describes the process of the TDR's engagement and contribution to this initiative. METHODOLOGY/PRINCIPAL FINDINGS: Multiple databases were searched to identify 152 scientific papers and reports with WHO funding or authorship affiliation around the following 3 framework strategies: detection of new cases, morbidity reduction, and prevention of infection. TDR has played a critical role in the evaluation and subsequent use of the 39-aminoacid-recombinant kinesin antigen (rK39) rapid diagnostic test (RDT) as a confirmatory test for VL in the national program. TDR has supported the clinical research and development of miltefosine and single-dose liposomal amphotericin B as a first-line treatment against VL. TDR has engaged with in country researchers, national programme managers, and partners to generate evidence-based interventions for early detection and treatment of VL patients. TDR evaluated the quality, community acceptance, and cost effectiveness of indoor residual spraying, insecticide-treated bed nets, insecticide-impregnated durable wall linings, insecticidal paint, and environmental management as tools for integrated vector management in reducing sandfly density. CONCLUSIONS/SIGNIFICANCE: TDR's engagement with country policy makers, scientists, and clinicians in the development of effective diagnosis, treatment, case detection, and vector control represents an important example of TDR's stewardship toward the elimination of VL in the Indian subcontinent. PMID- 29023449 TI - Network propagation in the cytoscape cyberinfrastructure. AB - Network propagation is an important and widely used algorithm in systems biology, with applications in protein function prediction, disease gene prioritization, and patient stratification. However, up to this point it has required significant expertise to run. Here we extend the popular network analysis program Cytoscape to perform network propagation as an integrated function. Such integration greatly increases the access to network propagation by putting it in the hands of biologists and linking it to the many other types of network analysis and visualization available through Cytoscape. We demonstrate the power and utility of the algorithm by identifying mutations conferring resistance to Vemurafenib. PMID- 29023448 TI - Structural host-microbiota interaction networks. AB - Hundreds of different species colonize multicellular organisms making them "metaorganisms". A growing body of data supports the role of microbiota in health and in disease. Grasping the principles of host-microbiota interactions (HMIs) at the molecular level is important since it may provide insights into the mechanisms of infections. The crosstalk between the host and the microbiota may help resolve puzzling questions such as how a microorganism can contribute to both health and disease. Integrated superorganism networks that consider host and microbiota as a whole-may uncover their code, clarifying perhaps the most fundamental question: how they modulate immune surveillance. Within this framework, structural HMI networks can uniquely identify potential microbial effectors that target distinct host nodes or interfere with endogenous host interactions, as well as how mutations on either host or microbial proteins affect the interaction. Furthermore, structural HMIs can help identify master host cell regulator nodes and modules whose tweaking by the microbes promote aberrant activity. Collectively, these data can delineate pathogenic mechanisms and thereby help maximize beneficial therapeutics. To date, challenges in experimental techniques limit large-scale characterization of HMIs. Here we highlight an area in its infancy which we believe will increasingly engage the computational community: predicting interactions across kingdoms, and mapping these on the host cellular networks to figure out how commensal and pathogenic microbiota modulate the host signaling and broadly cross-species consequences. PMID- 29023450 TI - Incorporating networks in a probabilistic graphical model to find drivers for complex human diseases. AB - Discovering genetic mechanisms driving complex diseases is a hard problem. Existing methods often lack power to identify the set of responsible genes. Protein-protein interaction networks have been shown to boost power when detecting gene-disease associations. We introduce a Bayesian framework, Conflux, to find disease associated genes from exome sequencing data using networks as a prior. There are two main advantages to using networks within a probabilistic graphical model. First, networks are noisy and incomplete, a substantial impediment to gene discovery. Incorporating networks into the structure of a probabilistic models for gene inference has less impact on the solution than relying on the noisy network structure directly. Second, using a Bayesian framework we can keep track of the uncertainty of each gene being associated with the phenotype rather than returning a fixed list of genes. We first show that using networks clearly improves gene detection compared to individual gene testing. We then show consistently improved performance of Conflux compared to the state-of-the-art diffusion network-based method Hotnet2 and a variety of other network and variant aggregation methods, using randomly generated and literature-reported gene sets. We test Hotnet2 and Conflux on several network configurations to reveal biases and patterns of false positives and false negatives in each case. Our experiments show that our novel Bayesian framework Conflux incorporates many of the advantages of the current state-of-the-art methods, while offering more flexibility and improved power in many gene-disease association scenarios. PMID- 29023451 TI - Caring or daring? Exploring the impact of facial masculinity/femininity and gender category information on first impressions. AB - In two studies we disentangled and systematically investigated the impact of subtle facial cues to masculinity/femininity and gender category information on first impressions. Participants judged the same unambiguously male and female target persons-either with masculine or feminine facial features slightly enhanced-regarding stereotypically masculine (i.e., competence) and feminine (i.e., warmth) personality traits. Results of both studies showed a strong effect of facial masculinity/femininity: Masculine-looking persons were seen as colder and more competent than feminine-looking persons. This effect of facial masculinity/femininity was not only found for typical (i.e., masculine-looking men and feminine-looking women) and atypical (i.e., masculine-looking women and feminine-looking men) category members; it was even found to be more pronounced for atypical than for typical category members. This finding reveals that comparing atypical members to the group prototype results in pronounced effects of facial masculinity/femininity. These contrast effects for atypical members predominate assimilation effects for typical members. Intriguingly, very subtle facial cues to masculinity/femininity strongly guide first impressions and may have more impact than the gender category. PMID- 29023452 TI - Functional imaging of cognition in an old-old population: A case for portable functional near-infrared spectroscopy. AB - In this study, functional near-infrared spectroscopy (fNIRS) was used to record brain activation during cognitive testing in older individuals (88+/-6yo; N = 19) living in residential care communities. This population, which is often associated with loss of personal independence due to physical or cognitive decline associated with aging, is also often under-represented in neuroscience research because of a limited means to participate in studies which often take place in large urban or university centers. In this study, we demonstrate the feasibility and initial results using a portable 8-source by 4-detector fNIRS system to measure brain activity from participants within residential care community centers. Using fNIRS, brain signals were recorded during a series of computerized cognitive tests, including a Symbol Digit Coding test (SDC), Stroop Test (ST), and Shifting Attention Test (SAT). The SDC and SAT elicited greater activity in the left middle frontal region of interest. Three components of the ST produced increases in the right middle frontal and superior frontal, and left superior frontal regions. An association between advanced age and increased activation in the right middle frontal region was observed during the incongruent ST. Although none of the participants had clinical dementia based on the short portable mental status questionnaire, the group performance was slightly below age-normed values on these cognitive tests. These results demonstrate the capability for obtaining functional neuroimaging measures in residential settings, which ultimately may aid in prognosis and care related to dementia in older adults. PMID- 29023453 TI - Plant water potential improves prediction of empirical stomatal models. AB - Climate change is expected to lead to increases in drought frequency and severity, with deleterious effects on many ecosystems. Stomatal responses to changing environmental conditions form the backbone of all ecosystem models, but are based on empirical relationships and are not well-tested during drought conditions. Here, we use a dataset of 34 woody plant species spanning global forest biomes to examine the effect of leaf water potential on stomatal conductance and test the predictive accuracy of three major stomatal models and a recently proposed model. We find that current leaf-level empirical models have consistent biases of over-prediction of stomatal conductance during dry conditions, particularly at low soil water potentials. Furthermore, the recently proposed stomatal conductance model yields increases in predictive capability compared to current models, and with particular improvement during drought conditions. Our results reveal that including stomatal sensitivity to declining water potential and consequent impairment of plant water transport will improve predictions during drought conditions and show that many biomes contain a diversity of plant stomatal strategies that range from risky to conservative stomatal regulation during water stress. Such improvements in stomatal simulation are greatly needed to help unravel and predict the response of ecosystems to future climate extremes. PMID- 29023454 TI - Antifungal defense of probiotic Lactobacillus rhamnosus GG is mediated by blocking adhesion and nutrient depletion. AB - Candida albicans is an inhabitant of mucosal surfaces in healthy individuals but also the most common cause of fungal nosocomial blood stream infections, associated with high morbidity and mortality. As such life-threatening infections often disseminate from superficial mucosal infections we aimed to study the use of probiotic Lactobacillus rhamnosus GG (LGG) in prevention of mucosal C. albicans infections. Here, we demonstrate that LGG protects oral epithelial tissue from damage caused by C. albicans in our in vitro model of oral candidiasis. Furthermore, we provide insights into the mechanisms behind this protection and dissect direct and indirect effects of LGG on C. albicans pathogenicity. C. albicans viability was not affected by LGG. Instead, transcriptional profiling using RNA-Seq indicated dramatic metabolic reprogramming of C. albicans. Additionally, LGG had a significant impact on major virulence attributes, including adhesion, invasion, and hyphal extension, whose reduction, consequently, prevented epithelial damage. This was accompanied by glucose depletion and repression of ergosterol synthesis, caused by LGG, but also due to blocked adhesion sites. Therefore, LGG protects oral epithelia against C. albicans infection by preventing fungal adhesion, invasion and damage, driven, at least in parts, by metabolic reprogramming due to nutrient limitation caused by LGG. PMID- 29023455 TI - Association between anthropometric indicators of adiposity and hypertension in a Brazilian population: Baependi Heart Study. AB - BACKGROUND: Recently, some studies have evaluated the role of adiposity measures in the prediction of hypertension risk, but the results are conflicting. Thus, the aim of this study was to compare which of the four indicators of adiposity (waist circumference-WC, body mass index-BMI, body adiposity index-BAI, and visceral adiposity index-VAI) were better associated with hypertension in a Brazilian population. METHODS AND FINDINGS: For this study, were selected 1627 individuals (both genders, and aged over 18 years) resident in the municipality of Baependi, a city located in the Southeast of Brazil. WC, BMI, BAI and VAI were determined according to a standard protocol. Hypertension was defined as mean systolic blood pressure >= 140 mmHg and/or diastolic blood pressure >= 90 mmHg, and/or antihypertensive drug use. The indicators of adiposity WC, BMI, BAI, and VAI were higher in hypertensive when compared to non-hypertensive individuals. In addition, WC and BMI were most strongly associated with hypertension in men and women, respectively. The area under the curve (AUC) of WC was significantly higher than VAI in men. In women, both AUC of BMI and WC showed higher discriminatory power to predict hypertension than BAI and VAI. CONCLUSIONS: The indicators of adiposity WC and BMI were better associated with hypertension than BAI and VAI, in both genders, and it could be a useful tools for the screening of hypertensive patients. PMID- 29023456 TI - Gait parameters are differently affected by concurrent smartphone-based activities with scaled levels of cognitive effort. AB - The widespread and pervasive use of smartphones for sending messages, calling, and entertainment purposes, mainly among young adults, is often accompanied by the concurrent execution of other tasks. Recent studies have analyzed how texting, reading or calling while walking-in some specific conditions-might significantly influence gait parameters. The aim of this study is to examine the effect of different smartphone activities on walking, evaluating the variations of several gait parameters. 10 young healthy students (all smartphone proficient users) were instructed to text chat (with two different levels of cognitive load), call, surf on a social network or play with a math game while walking in a real-life outdoor setting. Each of these activities is characterized by a different cognitive load. Using an inertial measurement unit on the lower trunk, spatio-temporal gait parameters, together with regularity, symmetry and smoothness parameters, were extracted and grouped for comparison among normal walking and different dual task demands. An overall significant effect of task type on the aforementioned parameters group was observed. The alterations in gait parameters vary as a function of cognitive effort. In particular, stride frequency, step length and gait speed show a decrement, while step time increases as a function of cognitive effort. Smoothness, regularity and symmetry parameters are significantly altered for specific dual task conditions, mainly along the mediolateral direction. These results may lead to a better understanding of the possible risks related to walking and concurrent smartphone use. PMID- 29023457 TI - The DMT1 IVS4+44C>A polymorphism and the risk of iron deficiency anemia in children with celiac disease. AB - BACKGROUND: Iron deficiency anemia in celiac disease is related to impaired duodenal mucosal uptake, due to villous atrophy. Iron enters the enterocytes through an apical divalent metal transporter, DMT1. Different DMT1 transcripts have been identified, depending on the presence of an iron-responsive element that allows DMT1 up-regulation during iron starvation. An intronic DMT1 polymorphism, IVS4+44C>A, has been associated with metal toxicity, and the CC carriers show high iron levels. AIMS: This study investigates the association between DMT1 IVS4+44C>A and anemia in a cohort of 387 Italian celiac children, and the functional role of the polymorphism. METHODS AND RESULTS: By association analysis, we found that DMT1 IVS4+44-AA genotype confers a four-fold risk of developing anemia, despite of atrophy degree. By analysis of mRNA from gastroesophageal biopsies, we found that total DMT1 is significantly upregulated in presence of mild, but not severe, atrophy, independently from IVS4+44C>A variant, and in normal but not in atrophic CC-biopsies. Moreover, we found that A allele is associated to preferential expression of the DMT1 transcripts lacking the iron-responsive element, thus limiting the DMT1 overexpression that normally occurs to respond to iron starvation. DISCUSSION: Possibly, the IVS4+44-AA related dysregulation of the iron-induced changes in DMT1 expression is not able to impair iron absorption in physiological condition. However, if exacerbated by the concomitant massive loss of functional absorbing tissue paralleling worsened stages of villus atrophy, it might be ineffective in counteracting iron deficiency, despite of DMT1 overexpression. CONCLUSION: We suggest, for the first time, that celiac disease may unmask the contribution of the DMT1 IVS4+44C>A polymorphism to the risk of anemia. PMID- 29023458 TI - Emergence of encounter networks due to human mobility. AB - There is a burst of work on human mobility and encounter networks. However, the connection between these two important fields just begun recently. It is clear that both are closely related: Mobility generates encounters, and these encounters might give rise to contagion phenomena or even friendship. We model a set of random walkers that visit locations in space following a strategy akin to Levy flights. We measure the encounters in space and time and establish a link between walkers after they coincide several times. This generates a temporal network that is characterized by global quantities. We compare this dynamics with real data for two cities: New York City and Tokyo. We use data from the location based social network Foursquare and obtain the emergent temporal encounter network, for these two cities, that we compare with our model. We found long range (Levy-like) distributions for traveled distances and time intervals that characterize the emergent social network due to human mobility. Studying this connection is important for several fields like epidemics, social influence, voting, contagion models, behavioral adoption and diffusion of ideas. PMID- 29023459 TI - Chlorophyte aspartyl aminopeptidases: Ancient origins, expanded families, new locations, and secondary functions. AB - M18 aspartyl aminopeptidases (DAPs) are well characterized in microbes and animals with likely functions in peptide processing and vesicle trafficking. In contrast, there is a dearth of knowledge on plant aminopeptidases with a preference for proteins and peptides with N-terminal acidic residues. During evolution of the Plantae, there was an expansion and diversification of the M18 DAPs. After divergence of the ancestral green algae from red and glaucophyte algae, a duplication yielded the DAP1 and DAP2 lineages. Subsequently DAP1 genes were lost in chlorophyte algae. A duplication of DAP2-related genes occurred early in green plant evolution. DAP2 genes were retained in land plants and picoeukaryotic algae and lost in green algae. In contrast, DAP2-like genes persisted in picoeukaryotic and green algae, while this lineage was lost in land plants. Consistent with this evolutionary path, Arabidopsis thaliana has two DAP gene lineages (AtDAP1 and AtDAP2). Similar to animal and yeast DAPs, AtDAP1 is localized to the cytosol or vacuole; while AtDAP2 harbors an N-terminal transit peptide and is chloroplast localized. His6-DAP1 and His6-DAP2 expressed in Escherichia coli were enzymatically active and dodecameric with masses exceeding 600 kDa. His6-DAP1 and His6-DAP2 preferentially hydrolyzed Asp-p-nitroanilide and Glu-p-nitroanilide. AtDAPs are highly conserved metallopeptidases activated by MnCl2 and inhibited by ZnCl2 and divalent ion chelators. The protease inhibitor PMSF inhibited and DTT stimulated both His6-DAP1 and His6-DAP2 activities suggesting a role for thiols in the AtDAP catalytic mechanism. The enzymes had distinct pH and temperature optima, as well as distinct kinetic parameters. Both enzymes had high catalytic efficiencies (kcat/Km) exceeding 1.0 x 107 M-1 sec-1. Using established molecular chaperone assays, AtDAP1 and AtDAP2 prevented thermal denaturation. AtDAP1 also prevented protein aggregation and promoted protein refolding. Collectively, these data indicate that plant DAPs have a complex evolutionary history and have evolved new biochemical features that may enable their role in vivo. PMID- 29023460 TI - The association between photoreceptor layer thickness measured by optical coherence tomography and visual sensitivity in glaucomatous eyes. AB - PURPOSE: To assess the thickness of the photoreceptor layer in the macular region in glaucomatous eyes. METHOD: Humphrey 10-2 visual field (VF) testing was carried out and mean threshold (mTH) was calculated in 118 eyes from 118 patients with open angle glaucoma. Macular optical coherence tomography (OCT) measurements (RS 3000, Nidek Co.ltd., Aichi, Japan) were also carried out in all eyes. Thickness measurements were recorded in the outer segment and retinal pigment epithelium (OS+RPE), the nerve fiber layer (NFL), the ganglion cell layer and inner plexiform layer (GCL+IPL), the inner nuclear layer and outer plexiform layer (INL+OPL) and the outer nuclear layer and inner segment (ONL+IS). The relationship between mTH and the thickness of these five different layers was investigated. Additionally, the influence of OS+RPE on mTH was investigated using partial correlation eliminating the effect of other variables of NFL, GCL+IPL, INL+OPL, ONL+IS, age, gender and axial length. RESULTS: The thickness of the OS+RPE layer was significantly decreased with the decrease of mTH (coefficient = 0.63 p <0.001). Partial correlation analysis suggested OS+RPE thickness is significantly (coefficient = 0.31, p <0.001) related to mTH, independent from NFL, GCL+IPL, INL+OPL, ONL+IS, age, gender and axial length. CONCLUSIONS: The thickness of the RPE+OS layer appears to be related to visual sensitivity in glaucoma. PMID- 29023461 TI - The development of fears of compassion scale Japanese version. AB - OBJECTIVES: Cultivation of compassion is a useful way to treat mental problems, but some individuals show resistance. Fears of compassion can be an obstacle for clinicians when providing psychotherapy, and for clients when engaging in interpersonal relationships. Despite its importance, a Japanese version of fears of compassion scales (for others, from others, and for self) has not yet been developed. This study developed a Japanese version of the Fears of Compassion Scales and tested its reliability and validity. DESIGN: This study used a cross sectional design, and a self-report procedure for collecting data. METHODS: A total of 485 students (121 males and 364 females) answered self-report questionnaires, including the draft Fears of Compassion Scales-Japanese version. RESULTS: There were distinctive factor structures for fear of compassion from others, and for self. The fear of compassion from others scale consisted of concern about compassion from others and avoidance of compassion from others. All scales had good internal consistency, test-retest reliability, face validity, and construct validity. Discrimination and difficulty were also calculated. CONCLUSIONS: These results indicate that the Fears of Compassion Scales-Japanese version is a well-constructed and useful measure to assess fears of compassion and the existence of cultural differences in fears of compassion. PMID- 29023462 TI - The sound of trustworthiness: Acoustic-based modulation of perceived voice personality. AB - When we hear a new voice we automatically form a "first impression" of the voice owner's personality; a single word is sufficient to yield ratings highly consistent across listeners. Past studies have shown correlations between personality ratings and acoustical parameters of voice, suggesting a potential acoustical basis for voice personality impressions, but its nature and extent remain unclear. Here we used data-driven voice computational modelling to investigate the link between acoustics and perceived trustworthiness in the single word "hello". Two prototypical voice stimuli were generated based on the acoustical features of voices rated low or high in perceived trustworthiness, respectively, as well as a continuum of stimuli inter- and extrapolated between these two prototypes. Five hundred listeners provided trustworthiness ratings on the stimuli via an online interface. We observed an extremely tight relationship between trustworthiness ratings and position along the trustworthiness continuum (r = 0.99). Not only were trustworthiness ratings higher for the high- than the low-prototypes, but the difference could be modulated quasi-linearly by reducing or exaggerating the acoustical difference between the prototypes, resulting in a strong caricaturing effect. The f0 trajectory, or intonation, appeared a parameter of particular relevance: hellos rated high in trustworthiness were characterized by a high starting f0 then a marked decrease at mid-utterance to finish on a strong rise. These results demonstrate a strong acoustical basis for voice personality impressions, opening the door to multiple potential applications. PMID- 29023464 TI - Role of p16 testing in cervical cancer screening among HIV-infected women. AB - BACKGROUND: p16 immunohistochemistry is used to evaluate for HPV-associated cervical intraepithelial neoplasia. The diagnostic performance of p16 in HIV infection is unclear. METHODS: Between June-December 2009, HIV-infected women underwent Papanicolaou (Pap) smear, human papillomavirus (HPV) testing, visual inspection with acetic acid (VIA), and colposcopy-directed biopsy as the disease gold standard at a HIV clinic in Kenya. Pap smears were evaluated for p16 expression. Sensitivity, specificity, positive predictive value (PPV), and area under the receiver operating characteristic curve (AUC) of p16 to detect CIN2/3 on histology and the impact of immunosuppression and ART was assessed. RESULTS: Of 331 cervical samples with p16 expression, p16 sensitivity and specificity to detect CIN2/3 was 54.1% and 72.4% respectively, which was lower than Pap and HPV in sensitivity, but higher in specificity than Pap, HPV, and VIA. Combining tests and p16 reduced sensitivity and increased specificity of Pap from 90.5% to 48.7% and 51.4% to 81.7%; of VIA from 59.5% to 37.8% and 67.6% to 89.9%; and of HPV from 82.4% to 50.0% and 55.3% to 84.8%. Combination p16 increased the PPV of Pap from 34.9% to 43.4%; of HPV from 34.7% to 48.7%; and VIA from 34.9% to 51.9%. Adjunctive p16 did not change AUC (P>0.05). P16 performance was not altered by immunosuppression or ART use. Combining p16 with HPV and VIA reduced the variation in HPV and VIA performance associated with CD4 and ART. CONCLUSION: As an adjunctive test in HIV-infected women, p16 immunohistochemistry increased specificity and PPV of HPV and VIA for CIN2/3, and was not altered in performance by immunosuppression, ART, or age. PMID- 29023465 TI - In vitro effects of Apixaban on 5 different cancer cell lines. AB - BACKGROUND: Cancer is associated with hypercoagulability. However, several data suggest that anticoagulant drugs may have an effect on tumor development and progression mediated by both coagulation dependent processes and non-coagulation dependent processes. Therefore, we investigated the in vitro effects of Apixaban on cell proliferation, mortality, cell migration, gene expression and matrix metalloproteinase in 5 different cancer cell lines. METHODS: The following cancer cell lines, and 2 normal fibroblast cultures (lung and dermal fibroblasts), were studied: OVCAR3 (ovarian cancer), MDA MB 231 (breast cancer), CaCO-2 (colon cancer), LNCaP (prostate cancer) and U937 (histiocytic lymphoma). Proliferation and cell mortality were assessed in control cells and Apixaban treated cultures (dose from 0.1 to 5 MUg/ml, 0 to 96-h). Necrosis/Apoptosis (fluorescence microscopy), cell migration (24-h after scratch test), matrix metalloproteinase (MMP) activity and mRNA expression (RT PCR) of p16, p21, p53 and HAS were also assessed. RESULTS: High-dose (5 MUg/ml) Apixaban incubation was associated with a significantly reduced proliferation in 3 cancer cell lines (OVCAR3, CaCO-2 and LNCaP) and with increased cancer cell mortality in all, except LNCaP, cancer lines. Apoptosis seems to account for the increased mortality. The migration capacity seems to be impaired after high-dose Apixaban incubation in OVCAR3 and CaCO-2 cells. Data on mRNA expression suggest a consistent increase in tumor suppression gene p16 in all cell lines. CONCLUSIONS: Our data suggest that high dose Apixaban may be able to interfere with cancer cell in vitro, reducing proliferation and increasing cancer cell mortality through apoptosis in several cancer cell lines. PMID- 29023463 TI - Learning to tie the knot: The acquisition of functional object representations by physical and observational experience. AB - Here we examined neural substrates for physically and observationally learning to construct novel objects, and characterized brain regions associated with each kind of learning using fMRI. Each participant was assigned a training partner, and for five consecutive days practiced tying one group of knots ("tied" condition) or watched their partner tie different knots ("watched" condition) while a third set of knots remained untrained. Functional MRI was obtained prior to and immediately following the week of training while participants performed a visual knot-matching task. After training, a portion of left superior parietal lobule demonstrated a training by scan session interaction. This means this parietal region responded selectively to knots that participants had physically learned to tie in the post-training scan session but not the pre-training scan session. A conjunction analysis on the post-training scan data showed right intraparietal sulcus and right dorsal premotor cortex to respond when viewing images of knots from the tied and watched conditions compared to knots that were untrained during the post-training scan session. This suggests that these brain areas track both physical and observational learning. Together, the data provide preliminary evidence of engagement of brain regions associated with hand-object interactions when viewing objects associated with physical experience, and with observational experience without concurrent physical practice. PMID- 29023466 TI - Training discrimination diminishes maladaptive avoidance of innocuous stimuli in a fear conditioning paradigm. AB - Anxiety disorders are the most common mental disorder worldwide. Although anxiety disorders differ in the nature of feared objects or situations, they share a common mechanism by which fear generalizes to related but innocuous objects, eliciting avoidance of objects and situations that pose no objective risk. This overgeneralization appears to be a crucial mechanism in the persistence of anxiety psychopathology. In this study we test whether an intervention that promotes discrimination learning reduces generalization of fear, in particular, harm expectancy and avoidance compared to an irrelevant (control) training. Healthy participants (N = 80) were randomly allocated to a training condition. Using a fear conditioning paradigm, participants first learned visual danger and safety signals (set 1). Baseline level of stimulus generalization was tested with ambiguous stimuli on a spectrum between the danger and safety signals. There were no differences between the training groups. Participants then received the stimulus discrimination training or a control training. After training, participants learned a new set of danger and safety signals (set 2), and the level of harm expectancy generalization and behavioural avoidance of ambiguous stimuli was tested. Although the training groups did not differ in fear generalization on a cognitive level (harm expectancy), the results showed a different pattern of avoidance of ambiguous stimuli, with the discrimination training group showing less avoidance of stimuli that resembled the safety signals. These results support the potential of interventions that promote discrimination learning in the treatment of anxiety disorders. PMID- 29023467 TI - Dietary lactoferrin supplementation to gilts during gestation and lactation improves pig production and immunity. AB - Lactoferrin (LF), a sialylated iron-binding glycoprotein, performs multiple beneficial functions including modulating immunity and improves neurodevelopment, health and growth performance. Maternal LF intervention for gilts (first parity sows) on the performance of gilts and their offspring remains unknown. In the current study gilts were fed with a commercial pig feed supplemented with 1g LF /day (treatment group) or 1g milk casein/day (control group) from day 1 post mating throughout pregnancy and lactation for about 135 days. The milk production and body weight gain was monitored. The immunoglobulin concentrations in the serum of gilts and piglets were measured using ELISA. Our study showed that maternal LF supplementation to the gilt (1) significantly increased milk production at different time points (day 1, 3, 7 and 19) of lactation compared to the control (p<0.001); (2) significantly increased body weight gain of their piglets during the first 19 days of life compared to the control group (p<0.05); (3) tended to increase pregnancy rate, litter size and birth weight, number of piglets born alive, and decrease the number of dead and intrauterine growth restriction (IUGR) piglets; (4) significantly increased the concentration of serum IgA in gilt and serum sIgA in piglet (p<0.05). In summary, maternal Lf intervention in gilts can improve milk production, pig production and serum IgA and sIgA levels, and therefore plays a key role in shaping the performance of their progeny. PMID- 29023468 TI - The effect of allometric scaling in coral thermal microenvironments. AB - A long-standing interest in marine science is in the degree to which environmental conditions of flow and irradiance, combined with optical, thermal and morphological characteristics of individual coral colonies, affects their sensitivity of thermal microenvironments and susceptibility to stress-induced bleaching within and/or among colonies. The physiological processes in Scleractinian corals tend to scale allometrically as a result of physical and geometric constraints on body size and shape. There is a direct relationship between scaling to thermal stress, thus, the relationship between allometric scaling and rates of heating and cooling in coral microenvironments is a subject of great interest. The primary aim of this study was to develop an approximation that predicts coral thermal microenvironments as a function of colony morphology (shape and size), light or irradiance, and flow velocity or regime. To do so, we provided intuitive interpretation of their energy budgets for both massive and branching colonies, and then quantified the heat-size exponent (b*) and allometric constant (m) using logarithmic linear regression. The data demonstrated a positive relationship between thermal rates and changes in irradiance, A/V ratio, and flow, with an interaction where turbulent regime had less influence on overall stress which may serve to ameliorate the effects of temperature rise compared to the laminar regime. These findings indicated that smaller corals have disproportionately higher stress, however they can reach thermal equilibrium quicker. Moreover, excellent agreements between the predicted and simulated microscale temperature values with no significant bias were observed for both the massive and branching colonies, indicating that the numerical approximation should be within the accuracy with which they could be measured. This study may assist in estimating the coral microscale temperature under known conditions of water flow and irradiance, in particular when examining the intra- and inter-colony variability found during periods of bleaching conditions. PMID- 29023469 TI - The common oncogenomic program of NOTCH1 and NOTCH3 signaling in T-cell acute lymphoblastic leukemia. AB - Notch is a major oncogenic driver in T cell acute lymphoblastic leukemia (T-ALL), in part because it binds to an enhancer that increases expression of MYC. Here, we exploit the capacity of activated NOTCH1 and NOTCH3 to induce T-ALL, despite substantial divergence in their intracellular regions, as a means to elucidate a broad, common Notch-dependent oncogenomic program through systematic comparison of the transcriptomes and Notch-bound genomic regulatory elements of NOTCH1- and NOTCH3-dependent T-ALL cells. ChIP-seq studies show a high concordance of functional NOTCH1 and NOTCH3 genomic binding sites that are enriched in binding motifs for RBPJ, the transcription factor that recruits activated Notch to DNA. The interchangeability of NOTCH1 and NOTCH3 was confirmed by rescue of NOTCH1 dependent T-ALL cells with activated NOTCH3 and vice versa. Despite remarkable overall similarity, there are nuanced differences in chromatin landscapes near critical common Notch target genes, most notably at a Notch-dependent enhancer that regulates MYC, which correlates with responsiveness to Notch pathway inhibitors. Overall, a common oncogenomic program driven by binding of either Notch is sufficient to maintain T-ALL cell growth, whereas cell-context specific differences appear to influence the response of T-ALL cells to Notch inhibition. PMID- 29023470 TI - Vicus: Exploiting local structures to improve network-based analysis of biological data. AB - Biological networks entail important topological features and patterns critical to understanding interactions within complicated biological systems. Despite a great progress in understanding their structure, much more can be done to improve our inference and network analysis. Spectral methods play a key role in many network-based applications. Fundamental to spectral methods is the Laplacian, a matrix that captures the global structure of the network. Unfortunately, the Laplacian does not take into account intricacies of the network's local structure and is sensitive to noise in the network. These two properties are fundamental to biological networks and cannot be ignored. We propose an alternative matrix Vicus. The Vicus matrix captures the local neighborhood structure of the network and thus is more effective at modeling biological interactions. We demonstrate the advantages of Vicus in the context of spectral methods by extensive empirical benchmarking on tasks such as single cell dimensionality reduction, protein module discovery and ranking genes for cancer subtyping. Our experiments show that using Vicus, spectral methods result in more accurate and robust performance in all of these tasks. PMID- 29023471 TI - Combinatorial action of Grainyhead, Extradenticle and Notch in regulating Hox mediated apoptosis in Drosophila larval CNS. AB - Hox mediated neuroblast apoptosis is a prevalent way to pattern larval central nervous system (CNS) by different Hox genes, but the mechanism of this apoptosis is not understood. Our studies with Abdominal-A (Abd-A) mediated larval neuroblast (pNB) apoptosis suggests that AbdA, its cofactor Extradenticle (Exd), a helix-loop-helix transcription factor Grainyhead (Grh), and Notch signaling transcriptionally contribute to expression of RHG family of apoptotic genes. We find that Grh, AbdA, and Exd function together at multiple motifs on the apoptotic enhancer. In vivo mutagenesis of these motifs suggest that they are important for the maintenance of the activity of the enhancer rather than its initiation. We also find that Exd function is independent of its known partner homothorax in this apoptosis. We extend some of our findings to Deformed expressing region of sub-esophageal ganglia where pNBs undergo a similar Hox dependent apoptosis. We propose a mechanism where common players like Exd-Grh Notch work with different Hox genes through region specific enhancers to pattern respective segments of larval central nervous system. PMID- 29023472 TI - Geographic variations of the bird-borne structural risk of West Nile virus circulation in Europe. AB - The structural risk of West Nile Disease results from the usual functioning of the socio-ecological system, which may favour the introduction of the pathogen, its circulation and the occurrence of disease cases. Its geographic variations result from the local interactions between three components: (i) reservoir hosts, (ii) vectors, both characterized by their diversity, abundance and competence, (iii) and the socio-economic context that impacts the exposure of human to infectious bites. We developed a model of bird-borne structural risk of West Nile Virus (WNV) circulation in Europe, and analysed the association between the geographic variations of this risk and the occurrence of WND human cases between 2002 and 2014. A meta-analysis of WNV serosurveys conducted in wild bird populations was performed to elaborate a model of WNV seropositivity in European bird species, considered a proxy for bird exposure to WNV. Several eco ethological traits of bird species were linked to seropositivity and the statistical model adequately fitted species-specific seropositivity data (area under the ROC curve: 0.85). Combined with species distribution maps, this model allowed deriving geographic variations of the bird-borne structural risk of WNV circulation. The association between this risk, and the occurrence of WND human cases across the European Union was assessed. Geographic risk variations of bird borne structural risk allowed predicting WND case occurrence in administrative districts of the EU with a sensitivity of 86% (95% CI: 0.79-0.92), and a specificity of 68% (95% CI: 0.66-0.71). Disentangling structural and conjectural health risks is important for public health managers as risk mitigation procedures differ according to risk type. The results obtained show promise for the prevention of WND in Europe. Combined with analyses of vector-borne structural risk, they should allow designing efficient and targeted prevention measures. PMID- 29023473 TI - Comparison of bioavailability and antiplatelet action of ticagrelor in patients with ST-elevation myocardial infarction and non-ST-elevation myocardial infarction: A prospective, observational, single-centre study. AB - BACKGROUND: Data from available studies suggest that the presence of ST-elevation myocardial infarction (STEMI) may be associated with delayed and attenuated ticagrelor bioavailability and effect compared with non-ST-elevation myocardial infarction (NSTEMI). METHODS: In a single-center, prospective, observational trial 73 patients with myocardial infarction (STEMI n = 49, NSTEMI n = 24) underwent a pharmacokinetic and pharmacodynamic assessment after a 180 mg ticagrelor loading dose (LD). Ticagrelor and its active metabolite (AR-C124910XX) plasma concentrations were determined with liquid chromatography tandem mass spectrometry, and their antiplatelet effect was measured with the VASP assay and multiple electrode aggregometry. RESULTS: During the first six hours after ticagrelor LD, STEMI patients had 38% and 34% lower plasma concentration of ticagrelor and AR-C124910XX, respectively, than NSTEMI (ticagrelor AUC(0-6): 2491 [344-5587] vs. 3991 [1406-9284] ng*h/mL; p = 0.038; AR-C124910XX AUC(0-6): 473 [0 924] vs. 712 [346-1616] ng*h/mL; p = 0.027). STEMI patients also required more time to achieve maximal concentration of ticagrelor (tmax: 4.0 [3.0-12.0] vs. 2.5 [2.0-6.0] h; p = 0.012). Impaired bioavailability of ticagrelor and AR-C124910XX seen in STEMI subjects was associated with diminished platelet inhibition in this group, which was most pronounced during the initial hours of treatment. CONCLUSIONS: Plasma concentrations of ticagrelor and AR-C124910XX during the first hours after ticagrelor LD were one third lower in STEMI than in NSTEMI patients. This reduced and delayed ticagrelor bioavailability was associated with weaker antiplatelet effect in STEMI. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT02602444 (November 09, 2015). PMID- 29023474 TI - HIV-1 transmission networks in high risk fishing communities on the shores of Lake Victoria in Uganda: A phylogenetic and epidemiological approach. AB - BACKGROUND: Fishing communities around Lake Victoria in sub-Saharan Africa have been characterised as a population at high risk of HIV-infection. METHODS: Using data from a cohort of HIV-positive individuals aged 13-49 years, enrolled from 5 fishing communities on Lake Victoria between 2009-2011, we sought to identify factors contributing to the epidemic and to understand the underlying structure of HIV transmission networks. Clinical and socio-demographic data were combined with HIV-1 phylogenetic analyses. HIV-1 gag-p24 and env-gp-41 sub-genomic fragments were amplified and sequenced from 283 HIV-1-infected participants. Phylogenetic clusters with >=2 highly related sequences were defined as transmission clusters. Logistic regression models were used to determine factors associated with clustering. RESULTS: Altogether, 24% (n = 67/283) of HIV positive individuals with sequences fell within 34 phylogenetically distinct clusters in at least one gene region (either gag or env). Of these, 83% occurred either within households or within community; 8/34 (24%) occurred within household partnerships, and 20/34 (59%) within community. 7/12 couples (58%) within households clustered together. Individuals in clusters with potential recent transmission (11/34) were more likely to be younger 71% (15/21) versus 46% (21/46) in un-clustered individuals and had recently become resident in the community 67% (14/21) vs 48% (22/46). Four of 11 (36%) potential transmission clusters included incident-incident transmissions. Independently, clustering was less likely in HIV subtype D (adjusted Odds Ratio, aOR = 0.51 [95% CI 0.26-1.00]) than A and more likely in those living with an HIV-infected individual in the household (aOR = 6.30 [95% CI 3.40-11.68]). CONCLUSIONS: A large proportion of HIV sexual transmissions occur within house-holds and within communities even in this key mobile population. The findings suggest localized HIV transmissions and hence a potential benefit for the test and treat approach even at a community level, coupled with intensified HIV counselling to identify early infections. PMID- 29023475 TI - De novo transcriptome sequencing of Isaria cateniannulata and comparative analysis of gene expression in response to heat and cold stresses. AB - Isaria cateniannulata is a very important and virulent entomopathogenic fungus that infects many insect pest species. Although I. cateniannulata is commonly exposed to extreme environmental temperature conditions, little is known about its molecular response mechanism to temperature stress. Here, we sequenced and de novo assembled the transcriptome of I. cateniannulata in response to high and low temperature stresses using Illumina RNA-Seq technology. Our assembly encompassed 17,514 unigenes (mean length = 1,197 bp), in which 11,445 unigenes (65.34%) showed significant similarities to known sequences in NCBI non-redundant protein sequences (Nr) database. Using digital gene expression analysis, 4,483 differentially expressed genes (DEGs) were identified after heat treatment, including 2,905 up-regulated genes and 1,578 down-regulated genes. Under cold stress, 1,927 DEGs were identified, including 1,245 up-regulated genes and 682 down-regulated genes. The expression patterns of 18 randomly selected candidate DEGs resulting from quantitative real-time PCR (qRT-PCR) were consistent with their transcriptome analysis results. Although DEGs were involved in many pathways, we focused on the genes that were involved in endocytosis: In heat stress, the pathway of clathrin-dependent endocytosis (CDE) was active; however at low temperature stresses, the pathway of clathrin-independent endocytosis (CIE) was active. Besides, four categories of DEGs acting as temperature sensors were observed, including cell-wall-major-components-metabolism-related (CWMCMR) genes, heat shock protein (Hsp) genes, intracellular-compatible-solutes metabolism-related (ICSMR) genes and glutathione S-transferase (GST). These results enhance our understanding of the molecular mechanisms of I. cateniannulata in response to temperature stresses and provide a valuable resource for the future investigations. PMID- 29023476 TI - Genetic and ecological insights into glacial refugia of walnut (Juglans regia L.). AB - The distribution and survival of trees during the last glacial maximum (LGM) has been of interest to paleoecologists, biogeographers, and geneticists. Ecological niche models that associate species occurrence and abundance with climatic variables are widely used to gain ecological and evolutionary insights and to predict species distributions over space and time. The present study deals with the glacial history of walnut to address questions related to past distributions through genetic analysis and ecological modeling of the present, LGM and Last Interglacial (LIG) periods. A maximum entropy method was used to project the current walnut distribution model on to the LGM (21-18 kyr BP) and LIG (130-116 kyr BP) climatic conditions. Model tuning identified the walnut data set filtered at 10 km spatial resolution as the best for modeling the current distribution and to hindcast past (LGM and LIG) distributions of walnut. The current distribution model predicted southern Caucasus, parts of West and Central Asia extending into South Asia encompassing northern Afghanistan, Pakistan, northwestern Himalayan region, and southwestern Tibet, as the favorable climatic niche matching the modern distribution of walnut. The hindcast of distributions suggested the occurrence of walnut during LGM was somewhat limited to southern latitudes from southern Caucasus, Central and South Asian regions extending into southwestern Tibet, northeastern India, Himalayan region of Sikkim and Bhutan, and southeastern China. Both CCSM and MIROC projections overlapped, except that MIROC projected a significant presence of walnut in the Balkan Peninsula during the LGM. In contrast, genetic analysis of the current walnut distribution suggested a much narrower area in northern Pakistan and the surrounding areas of Afghanistan, northwestern India, and southern Tajikistan as a plausible hotspot of diversity where walnut may have survived glaciations. Overall, the findings suggest that walnut perhaps survived the last glaciations in several refugia across a wide geographic area between 30 degrees and 45 degrees North latitude. However, humans probably played a significant role in the recent history and modern distribution of walnut. PMID- 29023477 TI - Possible cases of leprosy from the Late Copper Age (3780-3650 cal BC) in Hungary. AB - At the Abony-Turjanyos dulo site, located in Central Hungary, a rescue excavation was carried out. More than 400 features were excavated and dated to the Protoboleraz horizon, at the beginning of the Late Copper Age in the Carpathian Basin, between 3780-3650 cal BC. Besides the domestic and economic units, there were two special areas, with nine-nine pits that differed from the other archaeological features of the site. In the northern pit group seven pits contained human remains belonging to 48 individuals. Some of them were buried carefully, while others were thrown into the pits. The aim of this study is to present the results of the paleopathological and molecular analysis of human remains from this Late Copper Age site. The ratio of neonates to adults was high, 33.3%. Examination of the skeletons revealed a large number of pathological cases, enabling reconstruction of the health profile of the buried individuals. Based on the appearance and frequency of healed ante- and peri mortem trauma, inter-personal (intra-group) violence was characteristic in the Abony Late Copper Age population. However other traces of paleopathology were observed on the bones that appear not to have been caused by warfare or inter-group violence. The remains of one individual demonstrated a rare set of bone lesions that indicate the possible presence of leprosy (Hansen's disease). The most characteristic lesions occurred on the bones of the face, including erosion of the nasal aperture, atrophy of the anterior nasal spine, inflammation of the nasal bone and porosity on both the maxilla and the bones of the lower legs. In a further four cases, leprosy infection is suspected but other infections cannot be excluded. The morphologically diagnosed possible leprosy case significantly modifies our knowledge about the timescale and geographic spread of this specific infectious disease. However, it is not possible to determine the potential connections between the cases of possible leprosy and the special burial circumstances. PMID- 29023478 TI - Regeneration of glycocalyx by heparan sulfate and sphingosine 1-phosphate restores inter-endothelial communication. AB - Vasculoprotective endothelium glycocalyx (GCX) shedding plays a critical role in vascular disease. Previous work demonstrated that GCX degradation disrupts endothelial cell (EC) gap junction connexin (Cx) proteins, likely blocking interendothelial molecular transport that maintains EC and vascular tissue homeostasis to resist disease. Here, we focused on GCX regeneration and tested the hypothesis that vasculoprotective EC function can be stimulated via replacement of GCX when it is shed. We used EC with [i] intact heparan sulfate (HS), the most abundant GCX component; [ii] degraded HS; or [iii] HS that was restored after enzyme degradation, by cellular self-recovery or artificially. Artificial HS restoration was achieved via treatment with exogenous HS, with or without the GCX regenerator and protector sphingosine 1- phosphate (S1P). In these cells we immunocytochemically examined expression of Cx isotype 43 (Cx43) at EC borders and characterized Cx-containing gap junction activity by measuring interendothelial spread of gap junction permeable Lucifer Yellow dye. With intact HS, 60% of EC borders expressed Cx43 and dye spread to 2.88 +/- 0.09 neighboring cells. HS degradation decreased Cx43 expression to 30% and reduced dye spread to 1.87+/- 0.06 cells. Cellular self-recovery of HS restored baseline levels of Cx43 and dye transfer. Artificial HS recovery with exogenous HS partially restored Cx43 expression to 46% and yielded dye spread to only 1.03 +/- 0.07 cells. Treatment with both HS and S1P, recovered HS and restored Cx43 to 56% with significant dye transfer to 3.96 +/- 0.23 cells. This is the first evidence of GCX regeneration in a manner that effectively restores vasculoprotective EC communication. PMID- 29023480 TI - Phenoseasonal subcanopy light dynamics and the effects of light on the physiological ecology of a common understory shrub, Lindera benzoin. AB - The purpose of this work was to quantify the variation of subcanopy spatiotemporal light dynamics over the course of a year and to link it to the physiological ecology of the understory shrub, Lindera benzoin L. Blume (northern spicebush). Covering all seven phenoseasons of a deciduous forest, this work utilized a line quantum sensor to measure the variation in subcanopy light levels under all sky conditions at different times of the day. A total of 4,592 individual subcanopy measurements of photosynthetic photon flux density (PPFD, MUmol m-2 s-1) were taken as 15-second spatially-integrated one-meter linear averages to better understand the dynamism of light exposure to L. benzoin. Both open (n = 2, one continuous and one instantaneous) and subcanopy location (n = 25) measurements of PPFD were taken on each sampling date in and near the forested plot (Maryland, USA). In addition, we explored the effect of four photointensity-photoperiod combinations on the growth of L. benzoin under controlled conditions to compare to field conditions. On average, understory PPFD was less than 2% of open PPFD during the leafed months and an average of 38.8% of open PPFD during leafless winter months, indicating that: (1) often overlooked woody surfaces intercept large amounts of light; and (2) spicebush within the plot receive limited light even in early spring before canopy leaf-out. Statistical results suggested phenoseason accounted for nearly three-quarters of the variation in incident radiation between the three plant canopy heights. Spicebush under controlled conditions exhibited the highest fitness levels at an intensity of 164.5 MUmol m-2 s-1 for 12-hour duration. Similarly, spicebush growth in the field occurred at subcanopy locations receiving higher incidence of PPFD (i.e., >128 MUmol m-2 s-1). Results suggest that the ecological niche for these plants is very specific in terms of light intensity. PMID- 29023479 TI - Evaluating the efficiency of CHEF and CMV promoter with IRES and Furin/2A linker sequences for monoclonal antibody expression in CHO cells. AB - In recent years, monoclonal antibodies (mAbs) have been developed as powerful therapeutic and diagnostic agents and Chinese hamster ovary (CHO) cells have emerged as the dominant host for the recombinant expression of these proteins. A critical step in recombinant expression is the utilization of strong promoters, such as the Chinese Hamster Elongation Factor-1alpha (CHEF-1) promoter. To compare the strengths of CHEF with cytomegalovirus (CMV) promoter for mAb expression in CHO cells, four bicistronic vectors bearing either internal ribosome entry site (IRES) or Furin/2A (F2A) sequences were designed. The efficiency of these promoters was evaluated by measuring level of expressed antibody in stable cell pools. Our results indicated that CHEF promoter-based expression of mAbs was 2.5 fold higher than CMV-based expression in F2A-mediated vectors. However, this difference was less significant in IRES-mediated mAb expressing cells. Studying the stability of the F2A expression system in the course of 18 weeks, we observed that the cells having CHEF promoter maintained their antibody expression at higher level than those transfected with CMV promoter. Further analyses showed that both IRES-mediated vectors, expressed mAbs with correct size, whereas in antibodies expressed via F2A system heterogeneity of light chains were detected due to incomplete furin cleavage. Our findings indicated that the CHEF promoter is a viable alternative to CMV promoter-based expression in F2A-mediated vectors by providing both higher expression and level of stability. PMID- 29023481 TI - Phytochemical residue profiles in rice grains fumigated with essential oils for the control of rice weevil. AB - In the present study, we investigated the fumigant potential of five edible essential oils (EOs) against Sitophilus oryzae and their phytochemical residues in treated grains. Among the tested EOs, peppermint oil proved significantly effective (P <= 0.05) on S.oryzae at 400 MUl/L air concentration, inducing 83 and 100% mortalities in with-food and without-food conditions respectively over 72 h exposure. In addition, it was also observed that the binary mixtures of peppermint + lemon oil (1:1 ratio) produced an equivalent effect to that of peppermint oil alone treatments. The phytochemical residue analysis by GC-MS revealed the presence of six compounds upon 72 h exposure to EOs. Further, the analysis of physico-chemical properties of the compounds indicated a positive correlation between polar surface area (PSA) and its residual nature. The residue levels of eugenol were significantly elevated corresponding to its high PSA value (29) in clove and cinnamon oils. On the other hand, the compounds with zero PSA value imparted very less or no (D-Limonene, caryophyllene, pinene and terpinolene) residues in treated grains. With respect to the most active peppermint oil, L-menthone, menthyl acetate and eucalyptol residues were at 67, 41 and 23% levels respectively. The outcome of the present study indicate the peppermint oil as a potent fumigant against S. oryzae, and although the residues of phytochemicals in treated grains is higher; they belong to the generally recognised as safe (GRAS) status leaving no harmful effect. PMID- 29023482 TI - The trade-off between morphology and control in the co-optimized design of robots. AB - Conventionally, robot morphologies are developed through simulations and calculations, and different control methods are applied afterwards. Assuming that simulations and predictions are simplified representations of our reality, how sure can roboticists be that the chosen morphology is the most adequate for the possible control choices in the real-world? Here we study the influence of the design parameters in the creation of a robot with a Bayesian morphology-control (MC) co-optimization process. A robot autonomously creates child robots from a set of possible design parameters and uses Bayesian Optimization (BO) to infer the best locomotion behavior from real world experiments. Then, we systematically change from an MC co-optimization to a control-only (C) optimization, which better represents the traditional way that robots are developed, to explore the trade-off between these two methods. We show that although C processes can greatly improve the behavior of poor morphologies, such agents are still outperformed by MC co-optimization results with as few as 25 iterations. Our findings, on one hand, suggest that BO should be used in the design process of robots for both morphological and control parameters to reach optimal performance, and on the other hand, point to the downfall of current design methods in face of new search techniques. PMID- 29023483 TI - A simpler and more cost-effective peptide biosynthetic method using the truncated GST as carrier for epitope mapping. AB - There is a need to develop better methods for epitope mapping and/or identification of antibody-recognizing motifs. Here, we describe improved biosynthetic peptide (BSP) method using a newly developed plasmid pXXGST-3 as vector, which has a viral E7 gene in the cloning sites of pXXGST-1. It is crucial to employ pXXGST-3 instead of pXXGST-1, since it makes use of the BSP method simpler and easier to perform, and more cost-effective for epitope mapping. These merits are embodied in two aspects: i) convenient recovery of double enzyme digested product due to the existence of 315 bp inserted between BamH I and Sal I sites, and thus greatly reducing the production of self-ligation clones, and ii) no longer requiring control protein when screening recombinant (r-) clones expressing 8/18mer peptides by running polyacrylamide gel electrophoresis. The protocol involves the following core steps: (i) design of plus and minus strands of DNA fragments encoding overlapping 8/18mer peptides; (ii) chemical synthesis of the designed DNA fragments; (iii) development of r-clones using pXXGST-3 vector expressing each 8/18mer peptide fused with truncated GST188 protein; (iv) screening r-clones by running the cell pellets from each induced clone on SDS PAGE gel followed by sequencing of inserted DNA fragments for each verified r clone; and (v) Western blotting with either monoclonal antibodies or polyclonal antibodies. This improved GST188-BSP method provides a powerful alternative tool for epitope mapping. PMID- 29023484 TI - Does density-dependent diversification mirror ecological competitive exclusion? AB - Density-dependence is a term used in ecology to describe processes such as birth and death rates that are regulated by the number of individuals in a population. Evolutionary biologists have borrowed the term to describe decreasing rates of species accumulation, suggesting that speciation and extinction rates depend on the total number of species in a clade. If this analogy with ecological density dependence holds, diversification of clades is restricted because species compete for limited resources. We hypothesize that such competition should not only affect numbers of species, but also prevent species from being phenotypically similar. Here, we present a method to detect whether competitive interactions between species have ordered phenotypic traits on a phylogeny, assuming that competition prevents related species from having identical trait values. We use the method to analyze clades of birds and mammals, with body size as the phenotypic trait. We find no sign that competition has prevented species from having the same body size. Thus, since body size is a key ecological trait and competition does not seem to be responsible for differences in body size between species, we conclude that the diversification slowdown that is prevalent in these clades is unlikely due to the ecological interference implied by the term density dependence. PMID- 29023485 TI - A degradation-based sorting method for lithium-ion battery reuse. AB - In a world where millions of people are dependent on batteries to provide them with convenient and portable energy, battery recycling is of the utmost importance. In this paper, we developed a new method to sort 18650 Lithium-ion batteries in large quantities and in real time for harvesting used cells with enough capacity for battery reuse. Internal resistance and capacity tests were conducted as a basis for comparison with a novel degradation-based method based on X-ray radiographic scanning and digital image contrast computation. The test results indicate that the sorting accuracy of the test cells is about 79% and the execution time of our algorithm is at a level of 200 milliseconds, making our method a potential real-time solution for reusing the remaining capacity in good used cells. PMID- 29023487 TI - Triggers of acute attacks of gout, does age of gout onset matter? A primary care based cross-sectional study. AB - OBJECTIVES: To determine the proportion of people with gout who self-report triggers of acute attacks; identify the commonly reported triggers, and examine the disease and demographic features associated with self-reporting any trigger(s) of acute attacks of gout. METHODS: Individuals with gout were asked to fill a questionnaire enquiring about triggers that precipitated their acute gout attacks. Binary logistic regression was used to compute odds ratio (OR) and 95% confidence intervals (CI) to examine the association between having >=1 self reported trigger of acute gout and disease and demographic risk factors and to adjust for covariates. All statistical analyses were performed using STATA. RESULTS: 550 participants returned completed questionnaires. 206 (37.5%) reported at least one trigger of acute attacks, and less than 5% reported >2 triggers. Only 28.73% participants reported that their most recent gout attack was triggered by dietary or lifestyle risk factors. The most frequently self-reported triggers were alcohol intake (14.18%), red-meat or sea-food consumption (6%), dehydration (4.91%), injury or excess activity (4.91%), and excessively warm or cold weather (4.36% and 5.45%). Patients who had onset of gout before the age of 50 years were significantly more likely to identify a trigger for precipitating their acute gout attacks (aOR (95%CI) 1.73 (1.12-2.68) after adjusting for covariates. CONCLUSION: Most people with gout do not identify any triggers for acute attacks, and identifiable triggers are more common in those with young onset gout. Less than 20% people self-reported acute gout attacks from conventionally accepted triggers of gout e.g. alcohol, red-meat intake, while c.5% reported novel triggers such as dehydration, injury or physical activity, and weather extremes. PMID- 29023488 TI - Transgenic expression of human cytokines in immunodeficient mice does not facilitate myeloid expansion of BCR-ABL1 transduced human cord blood cells. AB - Several attempts have been made to model chronic myeloid leukemia (CML) in a xenograft setting but expansion of human myeloid cells in immunodeficient mice has proven difficult to achieve. Lack of cross-reacting cytokines in the microenvironment of the mice has been proposed as a potential reason. In this study we have used NOD/SCID IL2-receptor gamma deficient mice expressing human SCF, IL-3 and GM-CSF (NSGS mice), that should be superior in supporting human, and particularly, myeloid cell engraftment, to expand BCR-ABL1 expressing human cells in order to model CML. NSGS mice transplanted with BCR-ABL1 expressing cells became anemic and had to be sacrificed due to illness, however, this was not accompanied by an expansion of human myeloid cells but rather we observed a massive expansion of human T-cells and macrophages/histiocytes. Importantly, control human cells without BCR-ABL1 expression elicited a similar reaction, although with a slight delay of disease induction, suggesting that while BCR-ABL1 contributes to the inflammatory reaction, the presence of normal human hematopoietic cells is detrimental for NSGS mice. PMID- 29023486 TI - The sea cucumber genome provides insights into morphological evolution and visceral regeneration. AB - Apart from sharing common ancestry with chordates, sea cucumbers exhibit a unique morphology and exceptional regenerative capacity. Here we present the complete genome sequence of an economically important sea cucumber, A. japonicus, generated using Illumina and PacBio platforms, to achieve an assembly of approximately 805 Mb (contig N50 of 190 Kb and scaffold N50 of 486 Kb), with 30,350 protein-coding genes and high continuity. We used this resource to explore key genetic mechanisms behind the unique biological characters of sea cucumbers. Phylogenetic and comparative genomic analyses revealed the presence of marker genes associated with notochord and gill slits, suggesting that these chordate features were present in ancestral echinoderms. The unique shape and weak mineralization of the sea cucumber adult body were also preliminarily explained by the contraction of biomineralization genes. Genome, transcriptome, and proteome analyses of organ regrowth after induced evisceration provided insight into the molecular underpinnings of visceral regeneration, including a specific tandem-duplicated prostatic secretory protein of 94 amino acids (PSP94)-like gene family and a significantly expanded fibrinogen-related protein (FREP) gene family. This high-quality genome resource will provide a useful framework for future research into biological processes and evolution in deuterostomes, including remarkable regenerative abilities that could have medical applications. Moreover, the multiomics data will be of prime value for commercial sea cucumber breeding programs. PMID- 29023489 TI - Spatiotemporal variations in gene expression, histology and biomechanics in an ovine model of tendinopathy. AB - Flexor tendinopathy is a common problem affecting humans and animals. Tendon healing is poorly understood and the outcomes of conservative and surgical management are often suboptimal. While often considered a localized injury, recent evidence indicates that in the short term, tendinopathic changes are distributed widely throughout the tendon, remote from the lesion itself. Whether these changes persist throughout healing is unknown. The aim of this study was to document gene expression, histopathological and biomechanical changes that occur throughout the superficial digital flexor tendon (SDFT) up to 16 weeks post injury, using an ovine surgical model of tendinopathy. Partial tendon transection was associated with decreased gene expression for aggrecan, decorin, fibromodulin, tissue inhibitors of metalloproteinases (TIMPS 1, 2 and 3), collagen I and collagen II. Gene expression for collagen III, lumican and matrix metalloproteinase 13 (MMP13) increased locally around the lesion site. Expression of collagen III and MMP13 decreased with time, but compared to controls, collagen III, MMP13 and lumican expression remained regionally high throughout the study. An increase in TIMP3 was observed over time. Histologically, operated tendons had higher pathology scores than controls, especially around the injured region. A chondroid phenotype was observed with increased cellular rounding and marked proteoglycan accumulation which only partially improved with time. Biomechanically, partial tendon transection resulted in a localized decrease in elastic modulus (in compression) but only at 8 weeks postoperatively. This study improves our understanding of tendon healing, demonstrating an early 'peak' in pathology characterized by altered gene expression and notable histopathological changes. Many of these pathological changes become more localized to the region of injury during healing. Collagen III and MMP13 expression levels remained high close to the lesion throughout the study and may reflect the production of tendon tissue with suboptimal biomechanical properties. Further studies evaluating the long-term response of tendon to injury (6-12 months) are warranted to provide additional information on tendon healing and provide further understanding of the mechanisms underlying the pathology observed in this study. PMID- 29023490 TI - Network modeling of kinase inhibitor polypharmacology reveals pathways targeted in chemical screens. AB - Small molecule screens are widely used to prioritize pharmaceutical development. However, determining the pathways targeted by these molecules is challenging, since the compounds are often promiscuous. We present a network strategy that takes into account the polypharmacology of small molecules in order to generate hypotheses for their broader mode of action. We report a screen for kinase inhibitors that increase the efficacy of gemcitabine, the first-line chemotherapy for pancreatic cancer. Eight kinase inhibitors emerge that are known to affect 201 kinases, of which only three kinases have been previously identified as modifiers of gemcitabine toxicity. In this work, we use the SAMNet algorithm to identify pathways linking these kinases and genetic modifiers of gemcitabine toxicity with transcriptional and epigenetic changes induced by gemcitabine that we measure using DNaseI-seq and RNA-seq. SAMNet uses a constrained optimization algorithm to connect genes from these complementary datasets through a small set of protein-protein and protein-DNA interactions. The resulting network recapitulates known pathways including DNA repair, cell proliferation and the epithelial-to-mesenchymal transition. We use the network to predict genes with important roles in the gemcitabine response, including six that have already been shown to modify gemcitabine efficacy in pancreatic cancer and ten novel candidates. Our work reveals the important role of polypharmacology in the activity of these chemosensitizing agents. PMID- 29023493 TI - New perspective on single-radiator multiple-port antennas for adaptive beamforming applications. AB - One of the most challenging problems in recent antenna engineering fields is to achieve highly reliable beamforming capabilities in an extremely restricted space of small handheld devices. In this paper, we introduce a new perspective on single-radiator multiple-port (SRMP) antenna to alter the traditional approach of multiple-antenna arrays for improving beamforming performances with reduced aperture sizes. The major contribution of this paper is to demonstrate the beamforming capability of the SRMP antenna for use as an extremely miniaturized front-end component in more sophisticated beamforming applications. To examine the beamforming capability, the radiation properties and the array factor of the SRMP antenna are theoretically formulated for electromagnetic characterization and are used as complex weights to form adaptive array patterns. Then, its fundamental performance limits are rigorously explored through enumerative studies by varying the dielectric constant of the substrate, and field tests are conducted using a beamforming hardware to confirm the feasibility. The results demonstrate that the new perspective of the SRMP antenna allows for improved beamforming performances with the ability of maintaining consistently smaller aperture sizes compared to the traditional multiple-antenna arrays. PMID- 29023492 TI - Filter quality of electret masks in filtering 14.6-594 nm aerosol particles: Effects of five decontamination methods. AB - This study investigates the effects of five decontamination methods on the filter quality (qf) of three commercially available electret masks-N95, Gauze and Spunlace nonwoven masks. Newly developed evaluation methods, the overall filter quality (qf,o) and the qf ratio were applied to evaluate the effectiveness of decontamination methods for respirators. A scanning mobility particle sizer is utilized to measure the concentration of polydispersed particles with diameter 14.6-594 nm. The penetration of particles and pressure drop (Deltap) through the mask are used to determine qf and qf,o. Experimental results reveal that the most penetrating particle size (MPS) for the pre-decontaminated N95, Gauze and Spunlace masks were 118 nm, 461 nm and 279 nm, respectively, and the respective penetration rates were 2.6%, 23.2% and 70.0%. The Deltap through the pretreated N95 masks was 9.2 mm H2O at the breathing flow rate of heavy-duty workers, exceeding the Deltap values obtained through Gauze and Spunlace masks. Decontamination increased the sizes of the most penetrating particles, changing the qf values of all of the masks: qf fell as particle size increased because the penetration increased. Bleach increased the Deltap of N95, but destroyed the Gauze mask. However, the use of an autoclave reduces the Deltap values of both the N95 and the Gauze mask. Neither the rice cooker nor ethanol altered the Deltap of the Gauze mask. Chemical decontamination methods reduced the qf,o values for the three electret masks. The value of qf,o for PM0.1 exceeded that for PM0.1-0.6, because particles smaller than 100 nm had lower penetration, resulting in a better qf for a given pressure drop. The values of qf,o, particularly for PM0.1, reveal that for the tested treatments and masks, physical decontamination methods are less destructive to the filter than chemical methods. Nevertheless, when purchasing new or reusing FFRs, penetration should be regarded as the priority. PMID- 29023491 TI - Efficacy of carbonic anhydrase inhibitors in management of cystoid macular edema in retinitis pigmentosa: A meta-analysis. AB - BACKGROUND: Carbonic anhydrase inhibitors (CAI) are often used in the treatment of cystoid macular edema (CME) in retinitis pigmentosa (RP) patients. The aim of this meta-analysis is to gain a better understanding of the overall efficacy of CAI treatment. METHODS: Databases including PubMed, EMBASE, and Cochrane Library were searched to identify relevant studies. Eligible studies were clinical trials of patients with RP assigned topical or oral CAIs such as dorzolamide and acetazolamide. Changes in central macular thickness (CMT) by OCT in MUm and best corrected visual acuity (BCVA) in log MAR equivalents were extracted and results compared between baseline and after treatment. RESULTS: 11 clinical reports were identified which included a total of 194 patients (358 eyes) available for analysis, with 59 patients (115 eyes) assigned oral CAI treatment and 135 patients (243 eyes) assigned topical CAI treatment. The combined results showed a significant reduction of macular edema, as calculated by baseline and final central macular thickness (CMT) based on OCT examination (46.02MUm, 95%CI: 60.96, -31.08, I2 = 65%). However, the effect on visual acuity was inconsistent across studies. CONCLUSION: Based on non randomized controlled clinical studies, RP patients with CME who were treated with CAIs had better anatomical outcomes, but the effect on visual acuity was contradictory across studies. Multicenter prospective randomized controlled trials would be ideal to definitively test its clinical efficacy in RP patients. PMID- 29023496 TI - Pacing the phasing of leg and arm movements in breaststroke swimming to minimize intra-cyclic velocity fluctuations. AB - In swimming propelling efficiency is partly determined by intra-cyclic velocity fluctuations. The higher these fluctuations are at a given average swimming velocity, the less efficient is the propulsion. This study explored whether the leg-arm coordination (i.e. phase relation phi) within the breaststroke cycle can be influenced with acoustic pacing, and whether the so induced changes are accompanied by changes in intra-cyclic velocity fluctuations. Twenty-six participants were asked to couple their propulsive leg and arm movements to a double-tone metronome beat and to keep their average swimming velocity constant over trials. The metronome imposed five different phase relations phii (90, 135, 180, 225 and 270 degrees ) of leg-arm coordination. Swimmers adjusted their technique under the influence of the metronome, but failed to comply to the velocity requirement for phi = 90 and 135 degrees . For imposed phi = 180, 225 and 270 degrees , the intra-cyclic velocity fluctuations increased with increasing phi, while average swimming velocity did not differ. This suggests that acoustic pacing may be used to adjust phi and thereby performance of breaststroke swimming given the dependence of propelling efficiency on phi. PMID- 29023494 TI - Pooled analysis of menstrual irregularities from three major clinical studies evaluating everolimus for the treatment of tuberous sclerosis complex. AB - OBJECTIVES: To determine the impact of everolimus on female fertility, including menstrual irregularities, secondary amenorrhea, and luteinizing and follicle stimulating hormone levels in female patients. DESIGN: A pooled analysis from 3 prospective studies consisting of a core phase (>=6 months) and a long-term follow-up open-label extension. SETTING: One phase 2 single-center and two phase 3 multicenter studies. PARTICIPANTS: Data were obtained from female participants, restricted to those between 10 and 55 years of age, during 1 of 3 of the described clinical trials of everolimus. Patients had received >= 1 dose of everolimus. MAIN OUTCOME MEASURES: Incidence of fertility events. RESULTS: A total of 43/112 patients (38.4%) experienced at least 1 menstrual irregularity. The most common events were amenorrhea (24.1%) and irregular menstruation (17.0%). Seven patients (6.3%) experienced grade 3/4 amenorrhea. When only the longest duration period of amenorrhea for each patient was considered, the median duration was 291 days. Fifteen patients attained menarche during the treatment period in any of the pooled studies. The mean age of menarche for this group was 12.4 years, similar to that of patients who were postmenarche at study entry (12.2 years). A total of 19/92 patients (20.7%) who were postmenarche at baseline or during the study experienced an irregular menstruation event. An increased luteinizing hormone level was reported as an adverse event in 3/112 patients (3%), and follicle-stimulating hormone levels were within normal limits for these patients. CONCLUSIONS: No new safety concerns emerged regarding endocrine function and menstruation in female patients with tuberous sclerosis complex associated subependymal giant cell astrocytoma or angiomyolipoma, who were receiving everolimus. TRIAL REGISTRATION: ClinicalTrials.gov NCT00411619, NCT00789828, NCT00790400. PMID- 29023495 TI - The hnRNP-like Nab3 termination factor can employ heterologous prion-like domains in place of its own essential low complexity domain. AB - Many RNA-binding proteins possess domains with a biased amino acid content. A common property of these low complexity domains (LCDs) is that they assemble into an ordered amyloid form, juxtaposing RNA recognition motifs in a subcellular compartment in which RNA metabolism is focused. Yeast Nab3 is one such protein that contains RNA-binding domains and a low complexity, glutamine/proline-rich, prion-like domain that can self-assemble. Nab3 also contains a region of structural homology to human hnRNP-C that resembles a leucine zipper which can oligomerize. Here we show that the LCD and the human hnRNP-C homology domains of Nab3 were experimentally separable, as cells were viable with either segment, but not when both were missing. In exploiting the lethality of deleting these regions of Nab3, we were able to test if heterologous prion-like domains known to assemble into amyloid, could substitute for the native sequence. Those from the hnRNP-like protein Hrp1, the canonical prion Sup35, or the epsin-related protein Ent2, could rescue viability and enable the new Nab3 chimeric protein to support transcription termination. Other low complexity domains from RNA-binding, termination-related proteins or a yeast prion, could not. As well, an unbiased genetic selection revealed a new protein sequence that could rescue the loss of Nab3's essential domain via multimerization. This new sequence and Sup35's prion domain could also rescue the lethal loss of Hrp1's prion-like domain when substituted for it. This suggests there are different cross-functional classes of amyloid-forming LCDs and that appending merely any assembly-competent LCD to Nab3 does not restore function or rescue viability. The analysis has revealed the functional complexity of LCDs and provides a means by which the differing classes of LCD can be dissected and understood. PMID- 29023498 TI - Incidence and risk factors of massive subretinal hemorrhage in retinal angiomatous proliferation. AB - OBJECTIVE: To evaluate the incidence and associated risk factors of massive subretinal hemorrhage (SRH) in patients with retinal angiomatous proliferation (RAP). METHODS: A total of 187 eyes of 135 treatment-naive patients diagnosed with RAP were evaluated retrospectively. Clinical records including the time between the initial visit, last anti-vascular endothelial growth factor (VEGF) treatment, last stable examination, and the date of massive SRH were reviewed. Imaging findings including indocyanine green angiography (ICGA) and optical coherence tomography (OCT) were analyzed. RESULTS: Massive SRH developed in 18 eyes (9.6%) a median of 20 months after the initial presentation. Kaplan-Meier survival analysis revealed that the incidence (2.8, 5.8, 13.1, and 21.0% after 1,2,5 and 10 years, respectively) continuously increased. Among 14 eyes with discernable vascular anastomosis on baseline ICGA, 13 (92.8%) showed retinal arteriole involvement. On spectral-domain OCT imaging of the last visit prior to the massive SRH, a layered lamellar tissue complex was noted under the retinal pigment epithelium in 9 of 13 eyes, which was significantly associated with massive SRH[hazard ratio(HR),5.883;P = .010]. The average time between the last stable examination/last injection and the massive SRH was 2 and 5 months, respectively. The patients were treated with anti-VEGF, gas and recombinant tissue plasminogen activator injection; however, all except one eye had visual acuity worse than 20/1000 at the final visit. CONCLUSIONS: Massive SRH can occur in RAP in the course of anti-VEGF treatment, resulting in severe vision loss. A proactive dosing regimen may be more appropriate for these RAP eyes. PMID- 29023499 TI - Understanding the perceived logic of care by vaccine-hesitant and vaccine refusing parents: A qualitative study in Australia. AB - In terms of public health, childhood vaccination programs have benefits that far outweigh risks. However, some parents decide not to vaccinate their children. This paper explores the ways in which such parents talked about the perceived risks and benefits incurred by vaccinating (or not vaccinating) their children. Between 2013-2016 we undertook 29 in-depth interviews with non-vaccinating and/or 'vaccine hesitant' parents in Australia. Interviews were conducted in an open and non-judgmental manner, akin to empathic neutrality. Interviews focused on parents talking about the factors that shaped their decisions not to (or partially) vaccinate their children. All interviews were transcribed and analysed using both inductive and deductive processes. The main themes focus on parental perceptions of: 1. their capacity to reason; 2. their rejection of Western medical epistemology; and 3. their participation in labour intensive parenting practices (which we term salutogenic parenting). Parents engaged in an ongoing search for information about how best to parent their children (capacity to reason), which for many led to questioning/distrust of traditional scientific knowledge (rejection of Western medical epistemology). Salutogenic parenting spontaneously arose in interviews, whereby parents practised health promoting activities which they saw as boosting the natural immunity of their children and protecting them from illness (reducing or negating the perceived need for vaccinations). Salutogenic parenting practices included breastfeeding, eating organic and/or home-grown food, cooking from scratch to reduce preservative consumption and reducing exposure to toxins. We interpret our data as a 'logic of care', which is seen by parents as internally consistent, logically inter-related and inter dependent. Whilst not necessarily sharing the parents' reasoning, we argue that an understanding of their attitudes towards health and well-being is imperative for any efforts to engage with their vaccine refusal at a policy level. PMID- 29023497 TI - Characterization of PAX9 variant P20L identified in a Japanese family with tooth agenesis. AB - Transcription factors PAX9 and MSX1 play crucial roles in the development of permanent teeth at the bud stage, and their loss-of-function variants have been associated with congenital tooth agenesis. We sequenced the coding regions of the PAX9 and MSX1 genes from nine patients with non-syndromic tooth agenesis, and identified a missense mutation, P20L, of PAX9 in a single familial case involving three patients in two generations. Identical mutation was previously reported by other authors, but has not been characterized in detail. The mutation was located in a highly conserved N-terminal subdomain of the paired domain and co-segregated as a heterozygote with tooth agenesis. The patients showed defects primarily in the first and second molars, which is typical for cases attributable to PAX9 mutation. Luciferase reporter assay using the 2.3-kb promoter region of BMP4 and electrophoretic mobility shift assay using the CD19-2(A-ins) sequence revealed that P20L substitution eliminated most of the transactivation activity and specific DNA binding activity of PAX9 under the experimental conditions we employed, while some residual activity of the mutant was evident in the former assay. The hypomorphic nature of the variant may explain the relatively mild phenotype in this case, as compared with other PAX9 pathogenic variants such as R26W. PMID- 29023500 TI - The ghosts of HeLa: How cell line misidentification contaminates the scientific literature. AB - While problems with cell line misidentification have been known for decades, an unknown number of published papers remains in circulation reporting on the wrong cells without warning or correction. Here we attempt to make a conservative estimate of this 'contaminated' literature. We found 32,755 articles reporting on research with misidentified cells, in turn cited by an estimated half a million other papers. The contamination of the literature is not decreasing over time and is anything but restricted to countries in the periphery of global science. The decades-old and often contentious attempts to stop misidentification of cell lines have proven to be insufficient. The contamination of the literature calls for a fair and reasonable notification system, warning users and readers to interpret these papers with appropriate care. PMID- 29023502 TI - Process oriented guided inquiry learning (POGIL(r)) marginally effects student achievement measures but substantially increases the odds of passing a course. AB - While the inquiry approach to science teaching has been widely recommended as an epistemic mechanism to promote deep content understanding, there is also increased expectation that process and other transferable skills should be integral part of science pedagogy. To test the hypothesis that coupling process skills to content teaching impacts academic success measures, we meta-analyzed twenty-one studies (n = 21) involving 7876 students that compared Process Oriented Guided Inquiry Learning (POGIL), a pedagogy that provides opportunities for improving process skills during content learning through guided-inquiry activities, to standard lecture conditions. Based on conventional measures of class performance, POGIL had a small effect on achievement outcomes (effect size = 0.29, [95% CI = 0.15-0.43]) but substantially improved the odds of passing a class (odds ratio = 2.02, [95% CI: 1.45-2.83]). That is, participants in the POGIL pedagogy had higher odds of passing a course and roughly performed 0.3 standard deviations higher on achievement measures than participants in standard lectures. In relative risk terms, POGIL reduced the risk of failing a course by 38%. These findings suggest providing opportunities to improve process skills during class instruction does not inhibit content learning but enhances conventional success measures. We compare these findings with those of recent large meta-analysis that examined the effects of global active learning methods on achievement outcomes and course failure rates in science, technology, engineering, and mathematics (STEM) fields. PMID- 29023501 TI - Cognitive processing of orientation discrimination in anisometropic amblyopia. AB - Cognition is very important in our daily life. However, amblyopia has abnormal visual cognition. Physiological changes of the brain during processes of cognition could be reflected with ERPs. So the purpose of this study was to investigate the speed and the capacity of resource allocation in visual cognitive processing in orientation discrimination task during monocular and binocular viewing conditions of amblyopia and normal control as well as the corresponding eyes of the two groups with ERPs. We also sought to investigate whether the speed and the capacity of resource allocation in visual cognitive processing vary with target stimuli at different spatial frequencies (3, 6 and 9 cpd) in amblyopia and normal control as well as between the corresponding eyes of the two groups. Fifteen mild to moderate anisometropic amblyopes and ten normal controls were recruited. Three-stimulus oddball paradigms of three different spatial frequency orientation discrimination tasks were used in monocular and binocular conditions in amblyopes and normal controls to elicit event-related potentials (ERPs). Accuracy (ACC), reaction time (RT), the latency of novelty P300 and P3b, and the amplitude of novelty P300 and P3b were measured. Results showed that RT was longer in the amblyopic eye than in both eyes of amblyopia and non-dominant eye in control. Novelty P300 amplitude was largest in the amblyopic eye, followed by the fellow eye, and smallest in both eyes of amblyopia. Novelty P300 amplitude was larger in the amblyopic eye than non-dominant eye and was larger in fellow eye than dominant eye. P3b latency was longer in the amblyopic eye than in the fellow eye, both eyes of amblyopia and non-dominant eye of control. P3b latency was not associated with RT in amblyopia. Neural responses of the amblyopic eye are abnormal at the middle and late stages of cognitive processing, indicating that the amblyopic eye needs to spend more time or integrate more resources to process the same visual task. Fellow eye and both eyes in amblyopia are slightly different from the dominant eye and both eyes in normal control at the middle and late stages of cognitive processing. Meanwhile, abnormal extents of amblyopic eye do not vary with three different spatial frequencies used in our study. PMID- 29023503 TI - Model uncertainties do not affect observed patterns of species richness in the Amazon. AB - BACKGROUND: Climate change is arguably a major threat to biodiversity conservation and there are several methods to assess its impacts on species potential distribution. Yet the extent to which different approaches on species distribution modeling affect species richness patterns at biogeographical scale is however unaddressed in literature. In this paper, we verified if the expected responses to climate change in biogeographical scale-patterns of species richness and species vulnerability to climate change-are affected by the inputs used to model and project species distribution. METHODS: We modeled the distribution of 288 vertebrate species (amphibians, birds and mammals), all endemic to the Amazon basin, using different combinations of the following inputs known to affect the outcome of species distribution models (SDMs): 1) biological data type, 2) modeling methods, 3) greenhouse gas emission scenarios and 4) climate forecasts. We calculated uncertainty with a hierarchical ANOVA in which those different inputs were considered factors. RESULTS: The greatest source of variation was the modeling method. Model performance interacted with data type and modeling method. Absolute values of variation on suitable climate area were not equal among predictions, but some biological patterns were still consistent. All models predicted losses on the area that is climatically suitable for species, especially for amphibians and primates. All models also indicated a current East western gradient on endemic species richness, from the Andes foot downstream the Amazon river. Again, all models predicted future movements of species upwards the Andes mountains and overall species richness losses. CONCLUSIONS: From a methodological perspective, our work highlights that SDMs are a useful tool for assessing impacts of climate change on biodiversity. Uncertainty exists but biological patterns are still evident at large spatial scales. As modeling methods are the greatest source of variation, choosing the appropriate statistics according to the study objective is also essential for estimating the impacts of climate change on species distribution. Yet from a conservation perspective, we show that Amazon endemic fauna is potentially vulnerable to climate change, due to expected reductions on suitable climate area. Climate-driven faunal movements are predicted towards the Andes mountains, which might work as climate refugia for migrating species. PMID- 29023504 TI - The potential of small-Unmanned Aircraft Systems for the rapid detection of threatened unimproved grassland communities using an Enhanced Normalized Difference Vegetation Index. AB - The loss of unimproved grassland has led to species decline in a wide range of taxonomic groups. Agricultural intensification has resulted in fragmented patches of remnant grassland habitat both across Europe and internationally. The monitoring of remnant patches of this habitat is critically important, however, traditional surveying of large, remote landscapes is a notoriously costly and difficult task. The emergence of small-Unmanned Aircraft Systems (sUAS) equipped with low-cost multi-spectral cameras offer an alternative to traditional grassland survey methods, and have the potential to progress and innovate the monitoring and future conservation of this habitat globally. The aim of this article is to investigate the potential of sUAS for rapid detection of threatened unimproved grassland and to test the use of an Enhanced Normalized Difference Vegetation Index (ENDVI). A sUAS aerial survey is undertaken at a site nationally recognised as an important location for fragmented unimproved mesotrophic grassland, within the south east of England, UK. A multispectral camera is used to capture imagery in the visible and near-infrared spectrums, and the ENDVI calculated and its discrimination performance compared to a range of more traditional vegetation indices. In order to validate the results of analysis, ground quadrat surveys were carried out to determine the grassland communities present. Quadrat surveys identified three community types within the site; unimproved grassland, improved grassland and rush pasture. All six vegetation indices tested were able to distinguish between the broad habitat types of grassland and rush pasture; whilst only three could differentiate vegetation at a community level. The Enhanced Normalized Difference Vegetation Index (ENDVI) was the most effective index when differentiating grasslands at the community level. The mechanisms behind the improved performance of the ENDVI are discussed and recommendations are made for areas of future research and study. PMID- 29023505 TI - End-member modeling of the grain-size record of Sikouzi fine sediments in Ningxia (China) and implications for temperature control of Neogene evolution of East Asian winter monsoon. AB - The Late Cenozoic East Asian winter monsoon (EAWM) enhancement has been attributed to several factors, such as uplift of the Tibetan Plateau, retreat of the Paratethys Sea, and global cooling related to polar ice volume increment. However, the fundamental forcing factors remain enigmatic due to the absence of long and continuous climate records and sensitive indicators. Here we reanalyzed the published grain-size record of Sikouzi fine sediments in the western Chinese Loess Plateau through end-member (EM) modeling. The results indicate that EM 2 with grain-size peaks between 10-100 MUm decreased in content from 20.1 to 17 Ma and stepwise increased from 17 to 0.07 Ma during the following six stages (17-15 Ma, 15-12 Ma, 12-8 Ma, 8-6 Ma, 6-4 Ma and 4-0 Ma). Such varying trends can be successively correlated in seven stages with the integrated benthic delta18O record, implying that global warming weakened the EAWM from 20.1 to 17 Ma and global cooling has stepwise strengthened the EAWM since 17 Ma. Therefore, we conclude that global temperature change played a major role on the evolution of EAWM during the Neogene period. By contrast, Late Cenozoic palaeogeographic reorganization caused by uplift of the Tibetan Plateau and retreat of the Paratethys Sea contributed less to the evolutionary evolution of EAWM. Spectral analysis of the EM 2 data first provided direct evidence of orbitally influenced deposition in the study area and thus the EAWM variations during the Neogene period. The 100-kyr period became weak since ~10 Ma, possibly due to the decrease in sensitivity of a more stable, continental-scale ice sheet in Antarctica to local insolation forcing, deserving further investigation. PMID- 29023506 TI - Exopolysaccharides regulate calcium flow in cariogenic biofilms. AB - Caries-associated biofilms induce loss of calcium from tooth surfaces in the presence of dietary carbohydrates. Exopolysaccharides (EPS) provide a matrix scaffold and an abundance of primary binding sites within biofilms. The role of EPS in binding calcium in cariogenic biofilms is only partially understood. Thus, the aim of the present study is to investigate the relationship between the calcium dissolution rates and calcium tolerance of caries-associated bacteria and yeast as well as to examine the properties of EPS to quantify its binding affinity for dissolved calcium. Calcium dissolution was measured by dissolution zones on Pikovskaya's agar. Calcium tolerance was assessed by isothermal microcalorimetry (IMC) by adding CaCl2 to the bacterial cultures. Acid-base titration and Fourier transform infrared (FTIR) spectroscopy were used to identify possible functional groups responsible for calcium binding, which was assessed by isothermal titration calorimetry (ITC). Lactobacillus spp. and mutans streptococci demonstrated calcium dissolution in the presence of different carbohydrates. All strains that demonstrated high dissolution rates also revealed higher rates of calcium tolerance by IMC. In addition, acidic functional groups were predominantly identified as possible binding sites for calcium ions by acid base titration and FTIR. Finally, ITC revealed EPS to have a higher binding affinity for calcium compared, for example, to lactic acid. In conclusion, this study illustrates the role of EPS in terms of the calcium tolerance of cariogenic microbiota by determining the ability of EPS to control free calcium concentrations within the biofilms as a self-regulating mode of action in the pathogenesis of dental caries. PMID- 29023507 TI - Massive immune response against IVIg interferes with response against other antigens in mice: A new mode of action? AB - Administration of high dose intravenous immunoglobulin (IVIg) is widely used in the clinic to treat autoimmune and severe inflammatory diseases. However, its mechanisms of action remain poorly understood. We assessed the impact of IVIg on immune cell populations using an in vivo ovalbumin (Ova)-immunization mouse model. High dose IVIg significantly reduced the Ova-specific antibody response. Intriguingly, the results obtained indicate an immediate and massive immune reaction against IVIg, as shown by the activation and expansion of B cells and CD4+ T cells in the spleen and draining lymph nodes and the production of IVIg specific antibodies. We propose that IVIg competes at the T-cell level with the response against Ova to explain the immunomodulatory properties of IVIg. Two monoclonal antibodies did not succeeded in reproducing the effects of IVIg. This suggests that in addition to the mouse response against human constant domains, the enormous sequence diversity of IVIg may significantly contribute to this massive immune response against IVIg. While correlation of these findings to IVIg treated patients remains to be explored, our data demonstrate for the first time that IVIg re-directs the immune response towards IVIg and away from a specific antigen response. PMID- 29023509 TI - Effects of forcefield and sampling method in all-atom simulations of inherently disordered proteins: Application to conformational preferences of human amylin. AB - Although several computational modelling studies have investigated the conformational behaviour of inherently disordered protein (IDP) amylin, discrepancies in identifying its preferred solution conformations still exist between various forcefields and sampling methods used. Human islet amyloid polypeptide has long been a subject of research, both experimentally and theoretically, as the aggregation of this protein is believed to be the lead cause of type-II diabetes. In this work, we present a systematic forcefield assessment using one of the most advanced non-biased sampling techniques, Replica Exchange with Solute Tempering (REST2), by comparing the secondary structure preferences of monomeric amylin in solution. This study also aims to determine the ability of common forcefields to sample a transition of the protein from a helical membrane bound conformation into the disordered solution state of amylin. Our results demonstrated that the CHARMM22* forcefield showed the best ability to sample multiple conformational states inherent for amylin. It is revealed that REST2 yielded results qualitatively consistent with experiments and in quantitative agreement with other sampling methods, however far more computationally efficiently and without any bias. Therefore, combining an unbiased sampling technique such as REST2 with a vigorous forcefield testing could be suggested as an important step in developing an efficient and robust strategy for simulating IDPs. PMID- 29023508 TI - Conflicting effects of atazanavir therapy on atherosclerotic risk factors in stable HIV patients: A randomized trial of regimen switch to atazanavir. AB - : Bilirubin acts as a potent endogenous antioxidant, with higher concentrations associated with lower rates of CVD; the antiretroviral drug atazanavir (ATV) increases bilirubin levels but may also increase von Willebrand factor levels. We tested the hypothesis that increasing endogenous bilirubin using ATV would improve cardiometabolic risk factors and vascular function in older patients with HIV. Ninety participants were enrolled in two study protocols. In protocol 1, we evaluated markers of inflammation, thrombosis, and conduit artery endothelial function in subjects on non-ATV containing regimens. Participants were randomly assigned to continue baseline treatment or switch to an ATV-based regimen. Measurements were made at baseline and 28 days. In the protocol 2, we enrolled 30 subjects who received atazanavir for more than one year and were compared to the aim 1 protocol subjects at baseline. 60 subjects were enrolled in the first protocol (mean age 53, +/- 6 years), with 31 randomized to ATV and 29 continuing baseline treatment. Atazanavir significantly increased serum total bilirubin levels (p<0.001) and acutely but not chronically plasma total antioxidant capacity (p<0.001). An increase in von Willebrand Factor (p<0.001) and reduction in hs-CRP (p = 0.034) were noted. No changes were seen in either flow-mediated endothelium-dependent or vasodilation. In cross-sectional analysis (second protocol), similar findings were seen in the baseline attributes of non atazanavir-based and long-term atazanavir users. Increasing serum bilirubin levels with atazanavir in subjects with HIV reduces hs-CRP, temporarily reduces oxidative stress, but increases von Willebrand Factor. Atazanavir does not improve endothelial function of conduit arteries. TRIAL REGISTRATION: ClinicalTrials.gov NCT03019783. PMID- 29023510 TI - Reaching the 'first 90': Gaps in coverage of HIV testing among people living with HIV in 16 African countries. AB - BACKGROUND: UNAIDS has recently proposed a set of three ambitious targets that, if achieved, are predicted to end the AIDS epidemic by 2030. The targets, known as 90-90-90, call for 90% of people living with HIV (PLHIV) to know their status, 90% of PLHIV to receive antiretroviral therapy, and 90% of those on antiretroviral therapy to achieve viral suppression by the year 2020. We examine the first of these targets, focusing on sub-Saharan Africa, the region of the world most affected by HIV, to measure the proportion of PLHIV estimated to know their HIV status, and to identify background and behavioral characteristics significantly associated with gaps in ever testing among PLHIV. METHODS AND FINDINGS: We analyze cross-sectional population-based data from the Demographic and Health Surveys (DHS) and AIDS Indicator Surveys (AIS) fielded since 2010 in 16 sub-Saharan African countries where voluntary serological testing was recently conducted: Burkina Faso, Cameroon, Chad, Cote d'Ivoire, Ethiopia, Gabon, Lesotho, Malawi, Namibia, Rwanda, Sierra Leone, Tanzania, Togo, Uganda, Zambia, and Zimbabwe. Survey response rates averaged 95.0% (range 89.3-99.5%), while consent to serotesting averaged 94.9% (range 88.7-99.6%). This study, which includes more than 14,000 respondents living with HIV, finds that 69% of PLHIV in the average study country have ever been tested for HIV (range 34-95%). Based on timing of the last test and on ART coverage, we estimate that 54% of PLHIV in the average country are aware of their status (range 26-84%). Adjusted logistic regression finds that men (median adjusted odds ratio [AOR] = 0.38), adults with less than primary education (median AOR = 0.31), and adolescents (median AOR = 0.32) are consistently less likely to have ever been tested for HIV than women, adults with secondary and above education, and adults age 30-39, respectively. In most countries unadjusted logistic regression also finds significant gaps in testing among the poorest groups and those reporting never having had sex. CONCLUSION: The fact that an average of 54% of PLHIV in these 16 countries are estimated to know their status reflects encouraging progress. However, not only is this average far short of the 90% target set by UNAIDS for 2020, but it also implies that in the average study country nearly one-half of PLHIV are unable to access lifesaving care and treatment because they are unaware that they are HIV positive. Several gaps in HIV testing coverage exist, particularly among adolescents, the least educated, and men. While the need to target demographic groups at greatest risk of HIV continues, additional interventions focused on reaching men and on reaching socially vulnerable populations such as adolescents, the poorest, and the least educated are essential. PMID- 29023511 TI - A new and improved algorithm for the quantification of chromatin condensation from microscopic data shows decreased chromatin condensation in regenerating axolotl limb cells. AB - The nuclear landscape plays an important role in the regulation of tissue and positional specific genes in embryonic and developing cells. Changes in this landscape can be dynamic, and are associated with the differentiation of cells during embryogenesis, and the de-differentiation of cells during induced pluripotent stem cell (iPSC) formation and in many cancers. However, tools to quantitatively characterize these changes are limited, especially in the in vivo context, where numerous tissue types are present and cells are arranged in multiple layers. Previous tools have been optimized for the monolayer nature of cultured cells. Therefore, we present a new algorithm to quantify the condensation of chromatin in two in vivo systems. We first developed this algorithm to quantify changes in chromatin compaction and validated it in differentiating spermatids in zebrafish testes. Our algorithm successfully detected the typical increase in chromatin compaction as these cells differentiate. We then employed the algorithm to quantify the changes that occur in amphibian limb cells as they participate in a regenerative response. We observed that the chromatin in the limb cells de-compacts as they contribute to the regenerating organ. We present this new tool as an open sourced software that can be readily accessed and optimized to quantify chromatin compaction in complex multi-layered samples. PMID- 29023513 TI - Fruits and vegetables consumption and depressive symptoms: A population-based study in Peru. AB - OBJECTIVES: Among different factors, diet patterns seem to be related to depression. The aim of this study was to evaluate the association between the consumption of fruits and/or vegetables and depressive symptoms. METHODOLOGY/PRINCIPAL FINDINGS: A secondary data analysis was conducted using information from a population-based survey from 25 regions from Peru. The outcome was the presence of depressive symptoms according to the Patient Health Questionnaire (cutoff >=15 to define major depressive syndrome); whereas the exposure was the self-reported consumption of fruits and/or vegetables (in tertiles and using WHO recommendation >=5 servings/day). The association of interest was evaluated using Poisson regression models controlling for the complex-sample survey design and potential confounders. Data from 25,901 participants were analyzed, mean age 44.2 (SD: 17.7) and 13,944 (54.0%) women. Only 910 (3.8%; 95%CI: 3.5%-4.2%) individuals reported consuming >=5 servings of fruits and/or vegetables/day; whereas 819 (2.8%; 95%CI: 2.5%-3.1%) had depressive symptoms. Those in the lowest tertile of fruits and/or vegetables consumption had greater prevalence of depressive symptoms (PR = 1.88; 95%CI: 1.39-2.55) than those in the highest tertile. This association was stronger with fruits (PR = 1.92; 95%CI: 1.46-2.53) than vegetables (PR = 1.42; 95%CI: 1.05-1.93) alone. CONCLUSIONS: An inverse relationship between consumption of fruits and/or vegetables and depressive symptoms is reported. Less than 5% of subjects reported consuming the amount of fruits and vegetables recommended by the WHO. There is a need to implement strategies to promote better diet patterns with potential impact on mental health. PMID- 29023514 TI - Prostate cancer screening: Knowledge, attitudes and practices in a sample of men in Italy. A survey. AB - BACKGROUND: The aim of this study was to evaluate the knowledge, attitudes and behaviors towards prostate cancer and its prevention. METHODS: A cross-sectional survey was conducted on a random sample of 625 fathers of students attending eight public schools. The self-administered questionnaire included questions on: socio-demographic characteristics, personal and familiar medical history of prostate cancer, knowledge about prostate cancer and the prostate-specific antigen (PSA) test, perception of risk towards prostate cancer, perception of the benefits of having a PSA-test, willingness to receive the PSA-test and sources of and needs of information regarding prostate cancer and the PSA-test. RESULTS: 72.7% of respondents had heard about the PSA-test and 51.1% of those had heard about it through their physicians. This knowledge was higher: in men with older age, in those that had a higher level of education, in those who had a relative with prostrate problems or prostate cancer and in those with prostate problems. Perceived personal risk of contracting prostate cancer was associated with a higher level of education, in those who had received information about prostate cancer from a physician and in those with prostate problems. Only 29.6% of men had undergone a PSA-test and 59.4% were willing to do so in the future. The significant predictors of the willingness to receive a PSA-test were the belief that the PSA-test was useful, the perception of not very good personal health status, and need of additional information about the PSA-test. CONCLUSION: Respondents have a moderate knowledge about prostate cancer and a good propensity to undergo the PSA-test. Therefore, it would be necessary to increase information on the risks of prostate cancer and the benefits of prostate cancer prevention. PMID- 29023512 TI - The ultrastructural characteristics of porcine hepatocytes donated after cardiac death and preserved with warm machine perfusion preservation. AB - The effects of warm machine perfusion preservation of liver grafts donated after cardiac death on the intracellular three-dimensional ultrastructure of the organelles in hepatocytes remain unclear. Here we analyzed comparatively the ultrastructure of the endomembrane systems in porcine hepatocytes under warm ischemia and successive hypothermic and midthermic machine perfusion preservation, a type of the warm machine perfusion. Porcine liver grafts which had a warm ischemia time of 60 minutes were perfused for 4 hours with modified University of Wisconsin gluconate solution. Group A grafts were preserved with hypothermic machine perfusion preservation at 8 degrees C constantly for 4 hours. Group B grafts were preserved with rewarming up to 22 degrees C by warm machine perfusion preservation for 4 hours. An analysis of hepatocytes after 60 minutes of warm ischemia by scanning electron microscope revealed the appearance of abnormal vacuoles and invagination of mitochondria. In the hepatocytes preserved by subsequent hypothermic machine perfusion preservation, strongly swollen mitochondria were observed. In contrast, the warm machine perfusion preservation could preserve the functional appearance of mitochondria in hepatocytes. Furthermore, abundant vacuoles and membranous structures sequestrating cellular organelles like autophagic vacuoles were frequently observed in hepatocytes after warm machine perfusion preservation. In conclusion, the ultrastructure of the endomembrane systems in the hepatocytes of liver grafts changed in accordance with the temperature conditions of machine perfusion preservation. In addition, temperature condition of the machine perfusion preservation may also affect the condition of the hepatic graft attributed to autophagy systems, and consequently alleviate the damage of the hepatocytes. PMID- 29023515 TI - A novel bacteriocin from Enterococcus faecalis 478 exhibits a potent activity against vancomycin-resistant enterococci. AB - The emergence of multidrug-resistant enterococci (MDRE) and particularly vancomycin-resistant enterococci (VRE) is considered a serious health problem worldwide, causing the need for new antimicrobials. The aim of this study was to discover and characterize bacteriocin against clinical isolates of MDRE and VRE. Over 10,000 bacterial isolates from water, environment and clinical samples were screened. E. faecalis strain 478 isolated from human feces produced the highest antibacterial activity against several MDRE and VRE strains. The optimum condition for bacteriocin production was cultivation in MRS broth at 37 degrees C, pH 5-6 for 16 hours. The bacteriocin-like substance produced from E. faecalis strain EF478 was stable at 60 degrees C for at least 1 hour and retained its antimicrobial activity after storage at -20 degrees C for 1 year, at 4 degrees C for 6 months, and at 25 degrees C for 2 months. A nano-HPLC electrospray ionization multi-stage tandem mass spectrometry (nLC-ESI-MS/MS) analysis showed that the amino acid sequences of the bacteriocin-like substance was similar to serine protease of E. faecalis, gi|488296663 (NCBI database), which has never been reported as a bacteriocin. This study reported a novel bacteriocin with high antibacterial activity against VRE and MDRE. PMID- 29023516 TI - Hypothalamic control systems show differential gene expression during spontaneous daily torpor and fasting-induced torpor in the Djungarian hamster (Phodopus sungorus). AB - Djungarian hamsters are able to use spontaneous daily torpor (SDT) during the winter season as well as fasting-induced torpor (FIT) at any time of the year to cope with energetically challenging environmental conditions. Torpor is a state of severely reduced metabolism with a pronounced decrease in body temperature, which enables animals to decrease their individual energy requirements. Despite sharing common characteristics, such as reduced body mass before first torpor expression and depressed metabolism and body temperature during the torpid state, FIT and SDT differ in several physiological properties including torpor bout duration, minimal body temperature, fuel utilization and circadian organization. It remains unclear, whether SDT and FIT reflect the same phenomenon or two different physiological states. The hypothalamus has been suggested to play a key role in regulating energy balance and torpor. To uncover differences in molecular control mechanisms of torpor expression, we set out to investigate hypothalamic gene expression profiles of genes related to orexigenic (Agrp/Npy), circadian clock (Bmal1/Per1) and thyroid hormone (Dio2/Mct8) systems of animals undergoing SDT and FIT during different torpor stages. Orexigenic genes were mainly regulated during FIT and remained largely unaffected by SDT. Expression patterns of clock genes showed disturbed circadian clock rhythmicity in animals undergoing FIT, but not in animals undergoing SDT. During both, SDT and FIT, decreased Dio2 expression was detected, indicating reduced hypothalamic T3 availability in both types of torpor. Taken together, our results provide evidence that SDT and FIT also differ in certain central control mechanisms and support the observation that animals undergoing SDT are in energetical balance, whereas animals undergoing FIT display a negative energy balance. This should be carefully taken into account when interpreting data in torpor research, especially from animal models of fasting-induced hypometabolism such as mice. PMID- 29023517 TI - Developmental delay in the Amazon: The social determinants and prevalence among rural communities in Peru. AB - The consequences of poor child development are becoming increasingly recognized. Programs are being put in place around the world to improve child development by providing healthy and stimulating environments for children. However, these programs often have limited reach and little is known about the prevalence of developmental delay in under-developed communities. The current study set-out to better understand the prevalence of developmental delay in rural communities in the Amazon region of Peru. Also, it explores social determinants that are associated with any delay. Cross-sectional study by evaluating developmental delay in children under 4 years utilizing Ages and Stages Questionnaire (ASQ-3). Additionally, conducting a social determinants questionnaire answered by caretakers to identify social drivers for developmental delay. The data was analyzed with multi-variant analysis to measure association. The prevalence of developmental delay in the Amazonian communities was 26.7% (19.3% in communication, 11.4% in gross motor skills, 8% in both) (N = 596). The multivariate logistic regression analysis revealed significant associations between developmental delay and; level of education (OR 0.64, p = 0.009), age of mother during child's birth (OR 0.96, p = 0.002), visits by community health agents (OR 0.73, p = 0.013), and river as primary water source (OR 2.39, p = 0.001). The social determinants questionnaire revealed that 39% of the mothers had their first child before the age of 17, nearly half stopped going to school before the age of 12 (52%), 29% gave birth at home, 13% breast fed for less than 7 months, and 50% of the children had diarrhea in the last month. There is still a great need to improve the conditions for child development in the Amazon region of Peru. One-fourth of the children suffer from developmental delay, which will likely impede their potentials for life unless something is done. The impact of education, age of mother at birth of the child, community health agents, and access to clean drinking water were important findings. Improvements can be made in these areas to create a large, cost-effective impact on the well-being of the communities. PMID- 29023519 TI - Essential Annotation Schema for Ecology (EASE)-A framework supporting the efficient data annotation and faceted navigation in ecology. AB - Ecology has become a data intensive science over the last decades which often relies on the reuse of data in cross-experimental analyses. However, finding data which qualifies for the reuse in a specific context can be challenging. It requires good quality metadata and annotations as well as efficient search strategies. To date, full text search (often on the metadata only) is the most widely used search strategy although it is known to be inaccurate. Faceted navigation is providing a filter mechanism which is based on fine granular metadata, categorizing search objects along numeric and categorical parameters relevant for their discovery. Selecting from these parameters during a full text search creates a system of filters which allows to refine and improve the results towards more relevance. We developed a framework for the efficient annotation and faceted navigation in ecology. It consists of an XML schema for storing the annotation of search objects and is accompanied by a vocabulary focused on ecology to support the annotation process. The framework consolidates ideas which originate from widely accepted metadata standards, textbooks, scientific literature, and vocabularies as well as from expert knowledge contributed by researchers from ecology and adjacent disciplines. PMID- 29023518 TI - Factors associated with the risk of gingival disease in patients with rheumatoid arthritis. AB - Gingival disase and rheumatoid arthritis (RA) are linked at both the epidemiologic and pathogenesis levels. In this study, we aimed to identify environmental factors associated with RA and gingival disease and to investigate factors that protect the gingival tissue in RA patients. This retrospective study analyzed 754 RA patients with gingival disease selected from the NHANES database who completed the mobile examination center interview/examination between 1999 and 2004. Data collected included demographics, lifestyle, dietary intake, and biomarkers. The study included 173 RA patients with gingival disease. Multivariate logistic regression analysis showed that the odds of gingival disease were significantly increased with male gender. However, the odds of gingival disease was significantly decreased with increased vitamin C intake (OR = 0.996, p = 0.041), and higher serum vitamin D levels (OR = 0.979, p = 0.011). Given the significant association between the prevalence of gingival disease and RA, identification of risk factors of gingival disease will be useful as a screening tool in national health surveys to improve the management of periodontal disease in patients with RA. PMID- 29023520 TI - DNA accumulation on ventilation system filters in university buildings in Singapore. AB - INTRODUCTION: Biological particles deposit on air handling system filters as they process air. This study reports and interprets abundance and diversity information regarding biomass accumulation on ordinarily used filters acquired from several locations in a university environment. METHODS: DNA-based analysis was applied both to quantify (via DNA fluorometry and qPCR) and to characterize (via high-throughput sequencing) the microbial material on filters, which mainly processed recirculated indoor air. Results were interpreted in relation to building occupancy and ventilation system operational parameters. RESULTS: Based on accumulated biomass, average DNA concentrations per AHU filter surface area across nine indoor locations after twelve weeks of filter use were in the respective ranges 1.1 to 41 ng per cm2 for total DNA, 0.02 to 3.3 ng per cm2 for bacterial DNA and 0.2 to 2.0 ng DNA per cm2 for fungal DNA. The most abundant genera detected on the AHU filter samples were Clostridium, Streptophyta, Bacillus, Acinetobacter and Ktedonobacter for bacteria and Aspergillus, Cladosporium, Nigrospora, Rigidoporus and Lentinus for fungi. Conditional indoor airborne DNA concentrations (median (range)) were estimated to be 13 (2.6-107) pg/m3 for total DNA, 0.4 (0.05-8.4) pg/m3 for bacterial DNA and 2.3 (1.0-5.1) pg/m3 for fungal DNA. CONCLUSION: Conditional airborne concentrations and the relative abundances of selected groups of genera correlate well with occupancy level. Bacterial DNA was found to be more responsive than fungal DNA to differences in occupancy level and indoor environmental conditions. PMID- 29023521 TI - Factors affecting eye drop instillation in glaucoma patients with visual field defect. AB - BACKGROUND: To investigate the success rate of eye drop instillation in glaucoma patients with visual field defect as well as non-glaucoma volunteers. Factors that may affect the success rate of eye drop instillation were also evaluated. DESIGN: A prospective, observational study. PARTICIPANTS: Seventy-eight glaucoma patients and 85 non-glaucoma volunteers were recruited in this study. METHODS: Open angle glaucoma patients with visual field defect as well as non-glaucoma volunteers were asked to video record their procedures of eye drop instillation using a 5-mL plastic bottle of artificial tear solution. Success of eye drop instillation was judged on video based on the first one drop of solution successfully applied on the cornea, by two investigators. MAIN OUTCOME MEASURES: Success rate of eye drop instillation in glaucoma patients and non-glaucoma volunteers. Factors related to success rate of eye drop instillation, such as visual field defect and clinical characteristics, were also analyzed using multivariable logistic regression. RESULTS: No significant deference in mean age was observed between two groups (glaucoma: 64.5 +/- 14.4 years, non-glaucoma: 60.9 +/- 14.1 years, P = 0.1156). Success rate of eye drop instillation was significantly lower (P = 0.0215) in glaucoma patients (30/78; 38.5%) than in non glaucoma volunteers (48/85; 56.5%). The most frequent reason of instillation failure in glaucoma patients was touching the bulbar conjunctiva, cornea, eyelid or eyelashes with the tip of the bottle (29.5%). Multivariable logistic regression analysis identified lower corrected visual acuity (VA) (<= 1.0; odds ratio [OR] = 0.20, 95% confidence interval [CI] 0.04-0.93, P = 0.0411), lower mean deviation (MD) (< -12 dB; OR = 0.20, 95% CI 0.05-0.86, P = 0.0307) and visual field defect (VFD) in the inferior hemifield (OR = 0.11, 95% CI 0.02-0.34, P < 0.001) to be significantly related to instillation failure in glaucoma patients. CONCLUSIONS: Success rate of eye drop instillation was significantly lower in glaucoma patients than in non-glaucoma volunteers. Corrected VA <= 1.0, MD < -12 dB and/or VFD in the inferior hemifield may be related to failure of eye drop instillation. PMID- 29023522 TI - Microencapsulation of Clostridium difficile specific bacteriophages using microfluidic glass capillary devices for colon delivery using pH triggered release. AB - The prevalence of pathogenic bacteria acquiring multidrug antibiotic resistance is a global health threat to mankind. This has motivated a renewed interest in developing alternatives to conventional antibiotics including bacteriophages (viruses) as therapeutic agents. The bacterium Clostridium difficile causes colon infection and is particularly difficult to treat with existing antibiotics; phage therapy may offer a viable alternative. The punitive environment within the gastrointestinal tract can inactivate orally delivered phages. C. difficile specific bacteriophage, myovirus CDKM9 was encapsulated in a pH responsive polymer (Eudragit(r) S100 with and without alginate) using a flow focussing glass microcapillary device. Highly monodispersed core-shell microparticles containing phages trapped within the particle core were produced by in situ polymer curing using 4-aminobenzoic acid dissolved in the oil phase. The size of the generated microparticles could be precisely controlled in the range 80 MUm to 160 MUm through design of the microfluidic device geometry and by varying flow rates of the dispersed and continuous phase. In contrast to free 'naked' phages, those encapsulated within the microparticles could withstand a 3 h exposure to simulated gastric fluid at pH 2 and then underwent a subsequent pH triggered burst release at pH 7. The significance of our research is in demonstrating that C. difficile specific phage can be formulated and encapsulated in highly uniform pH responsive microparticles using a microfluidic system. The microparticles were shown to afford significant protection to the encapsulated phage upon prolonged exposure to an acid solution mimicking the human stomach environment. Phage encapsulation and subsequent release kinetics revealed that the microparticles prepared using Eudragit(r) S100 formulations possess pH responsive characteristics with phage release triggered in an intestinal pH range suitable for therapeutic purposes. The results reported here provide proof-of-concept data supporting the suitability of our approach for colon targeted delivery of phages for therapeutic purposes. PMID- 29023524 TI - Polymorphism IL-1RN rs419598 reduces the susceptibility to generalized periodontitis in a population of European descent. AB - Interleukin (IL) 1-ra is a potent endogenous competitive inhibitor of IL-alpha and beta and has an anti-inflammatory role. Study objectives were: 1) to assess the associations of IL-1RN genetic single nucleotide polymorphism (SNP) (rs419598) with generalized chronic periodontitis (GCP), generalized aggressive periodontitis (GAgP), and absence of periodontitis and 2) to assess its association with the load of five periodontopathogenic bacteria and periodontal clinical variables. A cross-sectional analytic study was conducted in 123 patients with GCP, 60 patients with GAgP, and 20 controls. Reverse hybridization PCR was used for genotyping analysis to detect SNPs in IL-1A (rs1800587), IL-1B (rs1143634), and IL-1RN (rs419598) genes and for determination of the load of five periodontopathogenic bacteria. The severity and extension of periodontitis were assessed. Multinomial logistic regression and mediated regression analyses were performed. Considering results for GCP and GAgP patients together, the presence of polymorphism in IL-1A and/or IL-1B gene was associated with a higher likelihood of periodontitis, (OR = 8.11; 95%CI [1.85-35.48]), but this likelihood was reduced when IL-1RN polymorphism was also present, (OR = 5.91; 95%CI [1.08 32.27]). IL-1RN polymorphism was significantly associated with lower counts of red complex bacteria, specifically Porphyromona gingivalis, Tannerella forsythia, and Prevotella intermedia, which were associated with improved clinical outcomes. The polymorphic expression of IL-1RN (rs419598) gene may be associated with a reduced susceptibility to GAgP and GCP in populations of European descent. This effect may be mediated by a decreased load of Porphyromona gingivalis, Tannerella forsythia, and Prevotella intermedia. PMID- 29023523 TI - The role of glutamate in neuronal ion homeostasis: A case study of spreading depolarization. AB - Simultaneous changes in ion concentrations, glutamate, and cell volume together with exchange of matter between cell network and vasculature are ubiquitous in numerous brain pathologies. A complete understanding of pathological conditions as well as normal brain function, therefore, hinges on elucidating the molecular and cellular pathways involved in these mostly interdependent variations. In this paper, we develop the first computational framework that combines the Hodgkin Huxley type spiking dynamics, dynamic ion concentrations and glutamate homeostasis, neuronal and astroglial volume changes, and ion exchange with vasculature into a comprehensive model to elucidate the role of glutamate uptake in the dynamics of spreading depolarization (SD)-the electrophysiological event underlying numerous pathologies including migraine, ischemic stroke, aneurysmal subarachnoid hemorrhage, intracerebral hematoma, and trauma. We are particularly interested in investigating the role of glutamate in the duration and termination of SD caused by K+ perfusion and oxygen-glucose deprivation. Our results demonstrate that glutamate signaling plays a key role in the dynamics of SD, and that impaired glutamate uptake leads to recovery failure of neurons from SD. We confirm predictions from our model experimentally by showing that inhibiting astrocytic glutamate uptake using TFB-TBOA nearly quadruples the duration of SD in layers 2-3 of visual cortical slices from juvenile rats. The model equations are either derived purely from first physical principles of electroneutrality, osmosis, and conservation of particles or a combination of these principles and known physiological facts. Accordingly, we claim that our approach can be used as a future guide to investigate the role of glutamate, ion concentrations, and dynamics cell volume in other brain pathologies and normal brain function. PMID- 29023525 TI - Multisensory emotion perception in congenitally, early, and late deaf CI users. AB - Emotions are commonly recognized by combining auditory and visual signals (i.e., vocal and facial expressions). Yet it is unknown whether the ability to link emotional signals across modalities depends on early experience with audio-visual stimuli. In the present study, we investigated the role of auditory experience at different stages of development for auditory, visual, and multisensory emotion recognition abilities in three groups of adolescent and adult cochlear implant (CI) users. CI users had a different deafness onset and were compared to three groups of age- and gender-matched hearing control participants. We hypothesized that congenitally deaf (CD) but not early deaf (ED) and late deaf (LD) CI users would show reduced multisensory interactions and a higher visual dominance in emotion perception than their hearing controls. The CD (n = 7), ED (deafness onset: <3 years of age; n = 7), and LD (deafness onset: >3 years; n = 13) CI users and the control participants performed an emotion recognition task with auditory, visual, and audio-visual emotionally congruent and incongruent nonsense speech stimuli. In different blocks, participants judged either the vocal (Voice task) or the facial expressions (Face task). In the Voice task, all three CI groups performed overall less efficiently than their respective controls and experienced higher interference from incongruent facial information. Furthermore, the ED CI users benefitted more than their controls from congruent faces and the CD CI users showed an analogous trend. In the Face task, recognition efficiency of the CI users and controls did not differ. Our results suggest that CI users acquire multisensory interactions to some degree, even after congenital deafness. When judging affective prosody they appear impaired and more strongly biased by concurrent facial information than typically hearing individuals. We speculate that limitations inherent to the CI contribute to these group differences. PMID- 29023526 TI - Antithrombotic therapy strategies for atrial fibrillation patients undergoing percutaneous coronary intervention: A systematic review and network meta analysis. AB - OBJECTIVE: The aim of this systematic review and network meta-analysis was to evaluate the comparative efficacy and safety of antiplatelet agents, vitamin K antagonist (VKA) and non-VKA oral anticoagulants (NOACs) in patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI). METHODS: PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials were searched to identify clinical trials comparing antiplatelet drugs with VKA and NOACs or their combination in AF patients undergoing PCI with a mean/median follow-up of at least 12 months. A network meta-analysis was conducted to directly and indirectly compare the efficacy and safety of competitive antithrombotic regimens with a Bayesian random-effects model. Results were presented as relative risks (RRs) and 95% confidence intervals (CIs). RESULTS: A total of 15 studies enrolling 13,104 patients were included. Among 5 regimens, rivaroxaban 15 mg daily plus P2Y12 inhibitor treatment demonstrated significant superiority over dual- and triple-antiplatelet therapies (DAPT, TT) in reducing thromboembolic events (0.64 [0.38, 0.95] and 0.68 [0.43, 0.98], respectively) but showed the maximum possibility of major bleeding risk, while VKA plus single antiplatelet therapy (SAPT) seemed the safest. Significantly less risk of major bleeding was seen in DAPT group than that in TT group (0.63 [0.39, 0.99]). CONCLUSIONS: The present study suggests that combination of VKA and SAPT is the best choice for AF patients undergoing PCI considering both efficacy and safety. Rivaroxaban 2.5 mg twice daily plus DAPT treatment owns the highest probability to be the optimal alternative to VKA plus SAPT for these patients. PMID- 29023527 TI - Dose-escalated radiotherapy for unresectable or locally recurrent pancreatic cancer: Dose volume analysis, toxicity and outcome of 28 consecutive patients. AB - PURPOSE: The role of radiotherapy for unresectable pancreatic cancer is controversial. A benefit of additional radiotherapy is supported by some observations. A dose-effect relationship was recently found by dose escalation employing image guided and intensity modulated radiotherapy. METHODS: We retrospectively evaluated 28 consecutive patients, all with history of extensive prior therapies for unresectable locally advanced/ recurrent pancreatic cancer (LAPC/LRPC). Treatment was delivered by helical tomotherapy after daily position verification with computed tomography. Dose to the planned target volume (PTV) was 51 Gy, while the dose to the macroscopic tumor was escalated by a simultaneous integrated boost to a median cumulative dose of 66 Gy (60-66 Gy). Concomitant chemotherapy consisted mainly of capecitabine (n = 23). RESULTS: 10 of 28 patients presented acute toxicities > grade 2, one patient succumbed to gastrointestinal bleeding after treatment. No correlations of toxicities and dose volume histograms (DVH) of retrospectively delineated small bowel loops were observed, although average small bowel volume receiving >= 20 Gy was 374 ml. DVH analyses revealed a correlation of splenic parameters and acute toxicity: Vomiting, anorexia, dehydration, hematologic toxicity, fatigue, combined gastro intestinal toxicity wit R-values between 0.392 and 0.561 (all p-values > 0.05). Only one patient developed late toxicities > grade 2. With an average follow-up time in surviving patients of 14 months median overall survival time was 19 months and median time to local recurrence 13 months. In 8 patients with available imaging of local recurrence: 5 in field recurrences, 2 marginal recurrences and one lymph node recurrence outside the high dose radiation field were observed. In univariate analysis only DeltaCA-19-9 during radiotherapy was associated with local control (p = 0.029) and overall survival (p = 0.049). CONCLUSION: Dose escalated normo-fractionated radiotherapy for LAPC/LRPC seems feasible and suitable to prolong local control and in consequence long-term survival. However, in-field local progression is still frequently observed and possibilities to increase the local effectiveness should be evaluated. Exposure of the spleen was predictive for acute toxicity and should be further investigated. PMID- 29023529 TI - Radiographic measurement of the quadriceps angle in dogs. AB - The direction of the force of the quadriceps muscle group is expressed by the value of the quadriceps angle, between the long axis of the muscle rectus femoris and the patellar ligament. This value is often modified in dogs with patellar luxation, a common orthopaedic disease of the stifle joint in both small and large dogs. The aims of the present study were to give a reference value for the quadriceps angle in healthy small and medium-large breed dogs. The medical records of healthy dogs and their pelvic limb radiographs (2014-2016) were reviewed. The radiographs were then divided into two groups: Group A (small dogs <15 kg body weight) and Group B (medium-large dogs >15 kg). The quadriceps angle of each pelvic limb was assessed using a digital software program in order to compare values between the two groups. The radiographs of 160 dogs, 80 per group were studied along with the assessment of the 320 pelvic limbs. The median quadriceps angle values obtained were in contrast with the literature: in Group A, it was 18.3 degrees and, in Group B, it was 8.7 degrees ; moreover, the quadriceps angle value for Group A was statistically higher than for Group B (p<0.0001). No significant difference was present between males and females, or between right and left hindlimbs. In Group B, the Labrador Retriever breed influenced the quadriceps angle (p = 0.0005). The outcome of this survey provides an objective parameter, or additional information, to explain the different quadriceps mechanisms of small and medium-large dogs. In future studies the QA range values assessed in the two size groups may be useful in defining the magnitude of the malalignment of the extensor mechanism in both healthy dogs and ones with patellar luxation. PMID- 29023528 TI - Evaluation of gastrointestinal bacterial population for the production of holocellulose enzymes for biomass deconstruction. AB - The gastrointestinal (GI) habitat of ruminant and non-ruminant animals sustains a vast ensemble of microbes that are capable of utilizing lignocellulosic plant biomass. In this study, an indigenous swine (Zovawk) and a domesticated goat (Black Bengal) were investigated to isolate bacteria having plant biomass degrading enzymes. After screening and enzymatic quantification of eighty-one obtained bacterial isolates, Serratia rubidaea strain DBT4 and Aneurinibacillus aneurinilyticus strain DBT87 were revealed as the most potent strains, showing both cellulase and xylanase production. A biomass utilization study showed that submerged fermentation (SmF) of D2 (alkaline pretreated pulpy biomass) using strain DBT4 resulted in the most efficient biomass deconstruction with maximum xylanase (11.98 U/mL) and FPase (0.5 U/mL) activities (55 degrees C, pH 8). The present study demonstrated that bacterial strains residing in the gastrointestinal region of non-ruminant swine are a promising source for lignocellulose degrading microorganisms that could be used for biomass conversion. PMID- 29023531 TI - Correction: Drivers of abundance and spatial distribution of reef-associated sharks in an isolated atoll reef system. AB - [This corrects the article DOI: 10.1371/journal.pone.0177374.]. PMID- 29023530 TI - Allele-specific expression at the androgen receptor alpha gene in a hybrid unisexual fish, the Amazon molly (Poecilia formosa). AB - The all-female Amazon molly (Poecilia formosa) is the result of a hybridization of the Atlantic molly (P. mexicana) and the sailfin molly (P. latipinna) approximately 120,000 years ago. As a gynogenetic species, P. formosa needs to copulate with heterospecific males including males from one of its bisexual ancestral species. However, the sperm only triggers embryogenesis of the diploid eggs. The genetic information of the sperm donor typically will not contribute to the next generation of P. formosa. Hence, P. formosa possesses generally one allele from each of its ancestral species at any genetic locus. This raises the question whether both ancestral alleles are equally expressed in P. formosa. Allele-specific expression (ASE) has been previously assessed in various organisms, e.g., human and fish, and ASE was found to be important in the context of phenotypic variability and disease. In this study, we utilized Real-Time PCR techniques to estimate ASE of the androgen receptor alpha (aralpha) gene in several distinct tissues of Amazon mollies. We found an allelic bias favoring the maternal ancestor (P. mexicana) allele in ovarian tissue. This allelic bias was not observed in the gill or the brain tissue. Sequencing of the promoter regions of both alleles revealed an association between an Indel in a known CpG island and differential expression. Future studies may reveal whether our observed cis regulatory divergence is caused by an ovary-specific trans-regulatory element, preferentially activating the allele of the maternal ancestor. PMID- 29023532 TI - Risk factors for gallstones and kidney stones in a cohort of patients with inflammatory bowel diseases. AB - BACKGROUND: Gallstones and kidney stones are known complications of inflammatory bowel diseases (IBD). Risk factors have been insufficiently studied and explanatory studies date back up to 30 years. It remains unclear, whether improved treatment options also influenced risk factors for these complications. OBJECTIVES: Identifying risk factors for gallstones and kidney stones in IBD patients. METHODS: Using data from the Swiss Inflammatory Bowel Disease Cohort Study we assessed associations of diseases characteristics with gallstones and kidney stones in univariate and multivariate logistic regression analyses. RESULTS: Out of 2323 IBD patients, 104 (7.8%) Crohn's disease (CD) and 38 (3.8%) ulcerative colitis (UC) patients were diagnosed with gallstones. Significant risk factors for gallstones were diagnosis of CD, age at diagnosis, disease activity and duration, NSAID intake, extra-intestinal manifestations and intestinal surgery. Kidney stones were described in 61 (4.6%) CD and 30 (3.0%) UC patients. Male gender, disease activity, intestinal surgery, NSAID usage and reduced physical activity were significant risk factors. Hospitalization was associated with gallstones and kidney stones. The presence of gallstones increased the risk for kidney stones (OR 4.87, p<0.001). CONCLUSION: The diagnosis of CD, intestinal surgery, prolonged NSAID use, disease activity and duration and bowel stenosis were significantly associated with cholecystonephrolithiasis in IBD. PMID- 29023533 TI - Circadian rhythms in parasites. PMID- 29023534 TI - BeWith: A Between-Within method to discover relationships between cancer modules via integrated analysis of mutual exclusivity, co-occurrence and functional interactions. AB - The analysis of the mutational landscape of cancer, including mutual exclusivity and co-occurrence of mutations, has been instrumental in studying the disease. We hypothesized that exploring the interplay between co-occurrence, mutual exclusivity, and functional interactions between genes will further improve our understanding of the disease and help to uncover new relations between cancer driving genes and pathways. To this end, we designed a general framework, BeWith, for identifying modules with different combinations of mutation and interaction patterns. We focused on three different settings of the BeWith schema: (i) BeME WithFun, in which the relations between modules are enriched with mutual exclusivity, while genes within each module are functionally related; (ii) BeME WithCo, which combines mutual exclusivity between modules with co-occurrence within modules; and (iii) BeCo-WithMEFun, which ensures co-occurrence between modules, while the within module relations combine mutual exclusivity and functional interactions. We formulated the BeWith framework using Integer Linear Programming (ILP), enabling us to find optimally scoring sets of modules. Our results demonstrate the utility of BeWith in providing novel information about mutational patterns, driver genes, and pathways. In particular, BeME-WithFun helped identify functionally coherent modules that might be relevant for cancer progression. In addition to finding previously well-known drivers, the identified modules pointed to other novel findings such as the interaction between NCOR2 and NCOA3 in breast cancer. Additionally, an application of the BeME-WithCo setting revealed that gene groups differ with respect to their vulnerability to different mutagenic processes, and helped us to uncover pairs of genes with potentially synergistic effects, including a potential synergy between mutations in TP53 and the metastasis related DCC gene. Overall, BeWith not only helped us uncover relations between potential driver genes and pathways, but also provided additional insights on patterns of the mutational landscape, going beyond cancer driving mutations. Implementation is available at https://www.ncbi.nlm.nih.gov/CBBresearch/Przytycka/software/bewith.html. PMID- 29023535 TI - Effect of protein and carbohydrate solutions on running performance and cognitive function in female recreational runners. AB - This study compared the effects of a carbohydrate-electrolyte-protein solution (CEPS, 2% protein plus 4% carbohydrate), carbohydrate-electrolyte solution (CES, 6% carbohydrate), and noncaloric sweetened placebo (PLA) on both 21-km running performance and cognitive function. Eleven female recreational endurance runners performed a 21-km time-trial running on three occasions, separated by at least 28 days. In a randomized cross-over design, they ingested CEPS, CES, or PLA at a rate of 150 mL every 2.5 km with no time feedback. A cognitive function test was performed before and after the run. Participants ingested approximately 24 g/h carbohydrate plus 12 g/h protein in CEPS trial, and 36 g/h carbohydrate in CES trial during each 21-km trial. Time to complete the time-trial was slightly shorter (P < 0.05) during CES (129.6 +/- 8.8 min) than PLA (134.6 +/- 11.5 min), with no differences between CEPS and the other two trials. The CEPS trial showed higher composite of visual motor speed than the PLA trial (P < 0.05). In conclusion, CES feedings might improve 21-km time-trial performance in female recreational runners compared with a PLA. However, adding protein to the CES provided no additional time-trial performance benefit. CEPS feeding during prolonged exercise could benefit visual motor speed compared to PLA alone, but no differences in the performance of the other cognitive function tests were found. PMID- 29023537 TI - Development and validation of a nursing professionalism evaluation model in a career ladder system. AB - BACKGROUND: The clinical ladder system categorizes the degree of nursing professionalism and rewards and is an important human resource tool for managing nursing. AIM: We developed a model to evaluate nursing professionalism, which determines the clinical ladder system levels, and verified its validity. METHODS: Data were collected using a clinical competence tool developed in this study, and existing methods such as the nursing professionalism evaluation tool, peer reviews, and face-to-face interviews to evaluate promotions and verify the presented content in a medical institution. Reliability and convergent and discriminant validity of the clinical competence evaluation tool were verified using SmartPLS software. The validity of the model for evaluating overall nursing professionalism was also analyzed. RESULTS: Clinical competence was determined by five dimensions of nursing practice: scientific, technical, ethical, aesthetic, and existential. The structural model explained 66% of the variance. Clinical competence scales, peer reviews, and face-to-face interviews directly determined nursing professionalism levels. CONCLUSIONS: The evaluation system can be used for evaluating nurses' professionalism in actual medical institutions from a nursing practice perspective. IMPLICATIONS FOR NURSING MANAGEMENT: A conceptual framework for establishing a human resources management system for nurses and a tool for evaluating nursing professionalism at medical institutions is provided. PMID- 29023538 TI - Correction: Metabolomics analysis: Finding out metabolic building blocks. AB - [This corrects the article DOI: 10.1371/journal.pone.0177031.]. PMID- 29023536 TI - Change in inflammatory parameters in prefrail and frail persons obtaining physical training and nutritional support provided by lay volunteers: A randomized controlled trial. AB - The aim of the study was to compare the effects of home visits with physical training and nutritional support on inflammatory parameters to home visits with social support alone within a randomized controlled trial. Prefrail and frail persons received home visits from lay volunteers twice a week for 12 weeks. Participants in the physical training and nutritional intervention group (PTN, n = 35) conducted two sets of six strength exercises and received nutritional support. The social support group (SoSu, n = 23) received visits only. TNF-alpha, IL-6, CRP, and total leukocyte count were assessed at baseline and after 12 weeks. Changes over time within groups were analyzed with paired t-tests; differences between groups were analyzed with ANCOVA for repeated measurements. In the PTN group, IL-6 and CRP remained stable, whereas in the SoSu group, IL-6 increased significantly from a median value of 2.6 pg/l (min-max = 2.0-10.2) to 3.0 pg/l (min-max = 2.0-20.8), and CRP rose from 0.2 mg/dl (min-max = 0.1-0.9) to 0.3 mg/dl (min-max = 0.1-3.0) after 12 weeks. In CRP, a significant difference between groups was found. TNF-alpha and total leukocyte count did not change in either the PTN group or the SoSu group. Persons showing an increase in physical performance (OR 4.54; 95% CI = 1.33-15.45) were more likely to have constant or decreased IL-6 values than persons who showed no improvement. In conclusion, in non-robust older adults, a physical training and nutritional support program provided by lay volunteers can delay a further increase in some inflammatory parameters. PMID- 29023539 TI - Despite disorganized synapse structure, Th2 cells maintain directional delivery of CD40L to antigen-presenting B cells. AB - Upon recognition of peptide displayed on MHC molecules, Th1 and Th2 cells form distinct immunological synapse structures. Th1 cells have a bull's eye synapse structure with TCR/ MHC-peptide interactions occurring central to a ring of adhesion molecules, while Th2 cells have a multifocal synapse with small clusters of TCR/MHC interactions throughout the area of T cell/antigen-presenting cell interaction. In this study, we investigated whether this structural difference in the immunological synapse affects delivery of T cell help. The immunological synapse is thought to ensure antigen-specific delivery of cytolytic granules and killing of target cells by NK cells and cytolytic T cells. In helper T cells, it has been proposed that the immunological synapse may direct delivery of other effector molecules including cytokines. CD40 ligand (CD40L) is a membrane-bound cytokine essential for antigen-specific T cell help for B cells in the antibody response. We incubated Th1 and Th2 cells overnight with a mixture of antigen presenting and bystander B cells, and the delivery of CD40L to B cells and subsequent B cell responses were compared. Despite distinct immunological synapse structures, Th1 and Th2 cell do not differ in their ability to deliver CD40L and T cell help in an antigen-specific fashion, or in their susceptibility to inhibition of help by a blocking anti-CD40L antibody. PMID- 29023540 TI - Emotional and tangible social support in a German population-based sample: Development and validation of the Brief Social Support Scale (BS6). AB - Aim of the study was the development and validation of the psychometric properties of a six-item bi-factorial instrument for the assessment of social support (emotional and tangible support) with a population-based sample. A cross sectional data set of N = 15,010 participants enrolled in the Gutenberg Health Study (GHS) in 2007-2012 was divided in two sub-samples. The GHS is a population based, prospective, observational single-center cohort study in the Rhein-Main Region in western Mid-Germany. The first sub-sample was used for scale development by performing an exploratory factor analysis. In order to test construct validity, confirmatory factor analyses were run to compare the extracted bi-factorial model with the one-factor solution. Reliability of the scales was indicated by calculating internal consistency. External validity was tested by investigating demographic characteristics health behavior, and distress using analysis of variance, Spearman and Pearson correlation analysis, and logistic regression analysis. Based on an exploratory factor analysis, a set of six items was extracted representing two independent factors. The two-factor structure of the Brief Social Support Scale (BS6) was confirmed by the results of the confirmatory factor analyses. Fit indices of the bi-factorial model were good and better compared to the one-factor solution. External validity was demonstrated for the BS6. The BS6 is a reliable and valid short scale that can be applied in social surveys due to its brevity to assess emotional and practical dimensions of social support. PMID- 29023541 TI - Improved influenza viral vector based Brucella abortus vaccine induces robust B and T-cell responses and protection against Brucella melitensis infection in pregnant sheep and goats. AB - We previously developed a potent candidate vaccine against bovine brucellosis caused by Brucella abortus using the influenza viral vector expressing Brucella Omp16 and L7/L12 proteins (Flu-BA). Our success in the Flu-BA vaccine trial in cattle and results of a pilot study in non-pregnant small ruminants prompted us in the current study to test its efficacy against B. melitensis infection in pregnant sheep and goats. In this study, we improved the Flu-BA vaccine formulation and immunization method to achieve maximum efficacy and safety. The Flu-BA vaccine formulation had two additional proteins Omp19 and SOD, and administered thrice with 20% Montanide Gel01 adjuvant, simultaneously by both subcutaneous and conjunctival routes at 21 days intervals in pregnant sheep and goats. At 42 days post-vaccination (DPV) we detected antigen-specific IgG antibodies predominantly of IgG2a isotype but also IgG1, and also detected a strong lymphocyte recall response with IFN-gamma production. Importantly, our candidate vaccine prevented abortion in 66.7% and 77.8% of pregnant sheep and goats, respectively. Furthermore, complete protection (absence of live B. melitensis 16M) was observed in 55.6% and 66.7% of challenged sheep and goats, and 72.7% and 90.0% of their fetuses (lambs/yeanlings), respectively. The severity of B. melitensis 16M infection in vaccinated sheep and goats and their fetuses (index of infection and rates of Brucella colonization in tissues) was significantly lower than in control groups. None of the protection parameters after vaccination with Flu-BA vaccine were statistically inferior to protection seen with the commercial B. melitensis Rev.1 vaccine (protection against abortion and vaccination efficacy, alpha = 0.18-0.34, infection index, P = 0.37-0.77, Brucella colonization, P = 0.16 to P > 0.99). In conclusion, our improved Flu-BA vaccine formulation and delivery method were found safe and effective in protecting pregnant sheep and goats against adverse consequences of B. melitensis infection. PMID- 29023542 TI - Massachusetts Medicaid members that smoked in 2008: Characteristics associated with smoking status in 2014. AB - The smoking rate among non-elderly Medicaid enrollees is more than double the rate for those privately insured; smoking-related conditions account for 15% of Medicaid expenditures. Under state health reform, Massachusetts Medicaid (MassHealth) made tobacco cessation treatment available beginning in 2006. We used surveys conducted in 2008 and 2014 to examine changes in smoking abstinence rates among MassHealth members identified as smokers and to identify factors associated with being a former smoker. Members previously identified as smokers were surveyed by mail or phone; 2008 and 2014 samples included 3,116 and 2,971 members, respectively. Surveys collected demographic and health information, asked members whether they smoked cigarettes "every day, some days or not at all', and asked questions to assess smoking intensity among current smokers. The 2014 survey included an open ended-question asking members "what helped the most" in quitting or quit attempts. We observed a significant decrease in members reporting smoking "every/some days" of 15.5 percentage points (p < .0001) from 2008 to 2014, and a significant decrease in smokers reporting smoking "more than 10 cigarettes on days smoked" of 16.7 percentage points (p < .0001). Compared to smokers, former smokers more frequently reported health concerns, the influence of family members, and the use of e-cigarettes as helping the most in quitting. Expanded access to tobacco cessation treatment under the Affordable Care Act may have help to reduce the high smoking rates among Medicaid enrollees. Additionally, smokers' concerns about health and the influence of family and friends provide opportunities for targeted intervention and messaging about quitting. PMID- 29023543 TI - A mannitol/sorbitol receptor stimulates dietary intake in Tribolium castaneum. AB - In insects, perception of chemical stimuli is involved in the acceptance or rejection of food. Gustatory receptors (Grs) that regulate external signals in chemosensory organs have been found in many insects. Tribolium castaneum, a major pest of stored products, possesses over 200 Gr genes. An expanded repertoire of Gr genes appears to be required for diet recognition in species that are generalist feeders; however, it remains unclear whether T. castaneum recognizes a suite of chemicals common to many products or whether its feeding is activated by specific chemicals, and whether its Grs are involved in feeding behavior. It is difficult to determine the food preferences of T. castaneum based on dietary intake due to a lack of appropriate methodology. This study established a novel dietary intake estimation method using gypsum, designated the TribUTE (Tribolium Urges To Eat) assay. For this assay, T. castaneum adults were fed a gypsum block without added organic compounds. Sweet preference was determined by adding sweeteners and measuring the amount of gypsum in the excreta. Mannitol was the strongest activator of T. castaneum dietary intake. In a Xenopus oocyte expression, TcGr20 was found to be responsible for mannitol and sorbitol responses, but not for responses to other tested non-volatile compounds. The EC50 values of TcGr20 for mannitol and sorbitol were 72.6 mM and 90.6 mM, respectively, suggesting that TcGr20 is a feasible receptor for the recognition of mannitol at lower concentrations. We used RNAi and the TribUTE assay to examine whether TcGr20 expression was involved in mannitol recognition. The amounts of excreta in TcGr20 dsRNA-injected adults decreased significantly, despite the presence of mannitol, compared to control adults. Taken together, our results indicate that T. castaneum adults recognized mannitol/sorbitol using the TcGr20 receptor, thereby facilitating the dietary intake of these compounds. PMID- 29023544 TI - Radar based technology for non-contact monitoring of accumulation of blood in the head: A numerical study. AB - BACKGROUND: This theoretical study examines the use of radar to continuously monitor "accumulation of blood in the head" (ACBH) non-invasively and from a distance, after the location of a hematoma or hemorrhage in the brain was initially identified with conventional medical imaging. Current clinical practice is to monitor ABCH with multiple, subsequent, conventional medical imaging. The radar technology introduced in this study could provide a lower cost and safe alternative to multiple conventional medical imaging monitoring for ACBH. MATERIALS AND METHODS: The goal of this study is to evaluate the feasibility of using radar to monitor changes in blood volume in the brain through a numerical simulation of ACBH monitoring from remote, with a directional spiral slot antennae, in 3-D models of the brain. The focus of this study is on evaluating the effect of frequencies on the antennae reading. To that end we performed the calculations for frequencies of 100 MHz, 500 MHz and 1 GHz. RESULTS AND DISCUSSION: The analysis shows that the ACBH can be monitored with radar and the monitoring resolution improves with an increase in frequency, in the range studied. However, it also appears that when typical clinical dimensions of hematoma and hemorrhage are used, the variable ratio of blood volume radius and radar wavelength can bring the measurements into the Mie and Rayleigh regions of the radar cross section. In these regions there is an oscillatory change in signal with blood volume size. For some frequencies there is an increase in signal with an increase in volume while in others there is a decrease. CONCLUSIONS: While radar can be used to monitor ACBH non-invasively and from a distance, the observed Mie region dependent oscillatory relation between blood volume size and wavelength requires further investigation. Classifiers, multifrequency algorithms or ultra-wide band radar are possible solutions that should be explored in the future. PMID- 29023545 TI - Territorial choruses of giant otter groups (Pteronura brasiliensis) encode information on group identity. AB - Group living animals often engage in corporate territorial defence. Territorial group vocalizations can provide information about group identity, size and composition. Neighbouring groups may use this information to avoid unfavourable direct conflicts. Giant otters are highly social and territorial animals with an elaborate vocal repertoire. They produce long-range screams when they are alert or excited, i.e. in an alarm, isolation or begging context. Long-range screams are not only produced by one individual at a time ('single screams') but also by multiple group members simultaneously, resulting in a highly conspicuous 'group chorus'. Wild giant otters regularly produce group choruses during interactions with predators, when they detect intruders in their territory or before group reunions after separation. Since single screams and especially group choruses probably contribute to the groups' corporate territorial defence, we hypothesized that group identity is encoded in single screams and group choruses. We analysed vocalizations from five wild and three captive giant otter groups and found statistical evidence for a group signature in group choruses. Results for single screams were less conclusive, which might have been caused by the comparatively lower sample size. We suggest that giant otters may gain information on group identity by listening to group choruses. Group identity likely constitutes important social information for giant otters since territory boundaries of neighbouring groups can overlap and direct inter-group conflicts are severe. Therefore, group chorusing may contribute to the mutual avoidance of members from different groups. PMID- 29023547 TI - Correction: Can quartet analyses combining maximum likelihood estimation and Hennigian logic overcome long branch attraction in phylogenomic sequence data? AB - [This corrects the article DOI: 10.1371/journal.pone.0183393.]. PMID- 29023546 TI - Steroid hormones and psychological responses to soccer matches: Insights from a systematic review and meta-analysis. AB - The present systematic review and meta-analysis aimed to assess the perturbations in hormonal and psychological homeostasis in response to soccer match-play. These perturbations were explored according to match outcome (i.e., win versus loss), gender, type of contest (i.e., competitive versus non-competitive fixtures) and competitive level (i.e., novice versus high-level). The review was conducted according to the Population/Intervention or Exposure/Comparison/Outcome(s) (PICO) criteria and the Preferred Reporting Items for Systematic Reviews and Meta analyses (PRISMA) guidelines. Match outcome, type of contest and competitive levels were moderator variables in the examined steroid hormones responses to a soccer match-play. Different testosterone responses were seen between match winners (increase) and losers (decrease) when compared to pre-game or baseline values (p <0.05), whilst no changes could be detected for cortisol relative to match outcome in female soccer players. Males (Delta% = 6.26; ES = 0.28) demonstrated a marginally lower increase in testosterone levels when compared to females (Delta% = 49.16; ES = 1.00), though not statistically significant. Females (Delta% = 162.7; ES = 0.98) did not demonstrate elevated cortisol match response compared to males (Delta% = 34.60; ES = 1.20). Male novice soccer match play increased cortisol levels compared to high-level soccer match-play (Q = 18.08, p<0.001). Competitive soccer matches increased cortisol levels compared to non-competitive fixtures (i.e., collegiate tournament). Additionally, competitive levels moderate the relationship between a soccer match and testosterone levels (p <0.001), regardless of gender differences. From the presented systematic review and meta-analysis it appears (1) cortisol changes are associated with cognitive anxiety in starter female soccer players, while (2) testosterone changes are associated with changes in mood state in females and social connectedness in male soccer players. This apparent psycho-physiological relationship may proffer the opportunity for targeted intervention(s) by practitioners to favorably influence performance and/or recovery agendas. Further mechanistic and/or applied evidence is required in this regard in addition to further data sets from females. PMID- 29023548 TI - Comparison of six electromyography acquisition setups on hand movement classification tasks. AB - Hand prostheses controlled by surface electromyography are promising due to the non-invasive approach and the control capabilities offered by machine learning. Nevertheless, dexterous prostheses are still scarcely spread due to control difficulties, low robustness and often prohibitive costs. Several sEMG acquisition setups are now available, ranging in terms of costs between a few hundred and several thousand dollars. The objective of this paper is the relative comparison of six acquisition setups on an identical hand movement classification task, in order to help the researchers to choose the proper acquisition setup for their requirements. The acquisition setups are based on four different sEMG electrodes (including Otto Bock, Delsys Trigno, Cometa Wave + Dormo ECG and two Thalmic Myo armbands) and they were used to record more than 50 hand movements from intact subjects with a standardized acquisition protocol. The relative performance of the six sEMG acquisition setups is compared on 41 identical hand movements with a standardized feature extraction and data analysis pipeline aimed at performing hand movement classification. Comparable classification results are obtained with three acquisition setups including the Delsys Trigno, the Cometa Wave and the affordable setup composed of two Myo armbands. The results suggest that practical sEMG tests can be performed even when costs are relevant (e.g. in small laboratories, developing countries or use by children). All the presented datasets can be used for offline tests and their quality can easily be compared as the data sets are publicly available. PMID- 29023550 TI - Effects of acute alcohol ingestion on eye movements and cognition: A double blind, placebo-controlled study. AB - Alcohol is one of the most consumed psychoactive substances in the world, and the negative impact related to alcohol use has become a worldwide public health issue. Alcohol is able to affect diffusely several areas of the Central Nervous System, which could impair visual functions, including eye movements, and cognitive processes. The objective of the present study was to investigate the effects of moderate alcohol intake in eyes movements, as an indicator of cognitive processing underlying the visual search in a the Maze task. We investigated the concentration of 0.08% blood alcohol concentration (BAC), using an intra-subject, double-blind, and placebo-controlled experimental design with a sample size of 20 young adults (11 men and nine women). All volunteers participated in both conditions, i.e., alcohol (0.08%) and placebo (0.00%), in a counterbalanced order. We use the Tobii TX300 eye tracker to evaluate eye movements during completion of Visual Maze Test. The results showed significant differences in the following eye movement patterns: the first fixation latency, number and duration of fixations (mean and total), the number and duration of saccades (mean and total), and the total execution time in the test. In addition, we investigate the areas of interest (AOI), decision points in which the participant must decide which course to follow. We verified that the participants in the alcohol condition had a significantly greater number of fixations in both AOI, in comparison to the placebo condition. Overall, our findings confirm that moderate doses of alcohol can change the eye movements of young adults. These alterations may evidence the influence of alcohol in cognitive processes, such as flexibility, attention, and planning, which are required during resolution of Maze Task. PMID- 29023549 TI - Supraphysiologic control over HIV-1 replication mediated by CD8 T cells expressing a re-engineered CD4-based chimeric antigen receptor. AB - HIV is adept at avoiding naturally generated T cell responses; therefore, there is a need to develop HIV-specific T cells with greater potency for use in HIV cure strategies. Starting with a CD4-based chimeric antigen receptor (CAR) that was previously used without toxicity in clinical trials, we optimized the vector backbone, promoter, HIV targeting moiety, and transmembrane and signaling domains to determine which components augmented the ability of T cells to control HIV replication. This re-engineered CAR was at least 50-fold more potent in vitro at controlling HIV replication than the original CD4 CAR, or a TCR-based approach, and substantially better than broadly neutralizing antibody-based CARs. A humanized mouse model of HIV infection demonstrated that T cells expressing optimized CARs were superior at expanding in response to antigen, protecting CD4 T cells from infection, and reducing viral loads compared to T cells expressing the original, clinical trial CAR. Moreover, in a humanized mouse model of HIV treatment, CD4 CAR T cells containing the 4-1BB costimulatory domain controlled HIV spread after ART removal better than analogous CAR T cells containing the CD28 costimulatory domain. Together, these data indicate that potent HIV-specific T cells can be generated using improved CAR design and that CAR T cells could be important components of an HIV cure strategy. PMID- 29023552 TI - The impact of male burials on the construction of Corded Ware identity: Reconstructing networks of information in the 3rd millennium BC. AB - The emergence of Corded Ware Groups throughout Europe in the 3rd millennium BC is one of the most defining events in European history. From the Wolga to the Rhine communities start to speak Indo-European languages and bury their dead in an extremely similar fashion. Recent ancient DNA-analyses identify a massive migration from the Eurasian steppe as the prime cause for this event. However, there is a fundamental difference between expressing a Corded Ware identity-the sharing of world views and ideas-and having a specific DNA-profile. Therefore, we argue that investigating the exchange of cultural information on burial rites between these communities serves as a crucial complement to the exchange of biological information. By adopting a practice perspective to 1161 Corded Ware burials throughout north-western Europe, combined with similarity indexes and network representations, we demonstrate a high degree of information sharing on the burial ritual between different regions. Moreover, we show that male burials are much more international in character than female burials and as such can be considered as the vector along which cultural information and Corded Ware identity was transmitted. This finding highlights an underlying complex societal organization of Corded Ware burial rites in which gender roles had a significant impact on the composition and transmission of cultural information. Our findings corroborate recent studies that suggest the Corded Ware was a male focused society. PMID- 29023551 TI - A multilayered electrospun graft as vascular access for hemodialysis. AB - Despite medical achievements, the number of patients with end-stage kidney disease keeps steadily raising, thereby entailing a high number of surgical and interventional procedures to establish and maintain arteriovenous vascular access for hemodialysis. Due to vascular disease, aneurysms or infection, the preferred access-an autogenous arteriovenous fistula-is not always available and appropriate. Moreover, when replacing small diameter blood vessels, synthetic vascular grafts possess well-known disadvantages. A continuous multilayered gradient electrospinning was used to produce vascular grafts made of collagen type I nanofibers on luminal and adventitial graft side, and poly-E-caprolactone as medial layer. Therefore, a custom-made electrospinner with robust environmental control was developed. The morphology of electrospun grafts was characterized by scanning electron microscopy and measurement of mechanical properties. Human microvascular endothelial cells were cultured in the graft under static culture conditions and compared to cultures obtained from dynamic continuous flow bioreactors. Immunofluorescent analysis showed that endothelial cells form a continuous luminal layer and functional characteristics were confirmed by uptake of acetylated low-density-lipoprotein. Incorporation of vancomycin and gentamicin to the medial graft layer allowed antimicrobial inhibition without exhibiting an adverse impact on cell viability. Most striking a physiological hemocompatibility was achieved for the multilayered grafts. PMID- 29023553 TI - Unearthing the hidden world of roots: Root biomass and architecture differ among species within the same guild. AB - The potential benefits of planting trees have generated significant interest with respect to sequestering carbon and restoring other forest based ecosystem services. Reliable estimates of carbon stocks are pivotal for understanding the global carbon balance and for promoting initiatives to mitigate CO2 emissions through forest management. There are numerous studies employing allometric regression models that convert inventory into aboveground biomass (AGB) and carbon (C). Yet the majority of allometric regression models do not consider the root system nor do these equations provide detail on the architecture and shape of different species. The root system is a vital piece toward understanding the hidden form and function roots play in carbon accumulation, nutrient and plant water uptake, and groundwater infiltration. Work that estimates C in forests as well as models that are used to better understand the hydrologic function of trees need better characterization of tree roots. We harvested 40 trees of six different species, including their roots down to 2 mm in diameter and created species-specific and multi-species models to calculate aboveground (AGB), coarse root belowground biomass (BGB), and total biomass (TB). We also explore the relationship between crown structure and root structure. We found that BGB contributes ~27.6% of a tree's TB, lateral roots extend over 1.25 times the distance of crown extent, root allocation patterns varied among species, and that AGB is a strong predictor of TB. These findings highlight the potential importance of including the root system in C estimates and lend important insights into the function roots play in water cycling. PMID- 29023554 TI - Reproducibility of shear wave elastography (SWE) in patients with chronic liver disease. AB - The presence of significant fibrosis is an indicator for liver disease staging and prognosis. The aim of the study was to determine reproducibility of real-time shear wave elastography using a hepatic biopsy as the reference standard to identify patients with chronic liver disease. Forty patients with chronic liver disease and 12 normal subjects received shear wave elastography performed by skilled operators. Interoperator reproducibility was studied in 29 patients. Fibrosis was evaluated using the Metavir score. The median and range shear wave elastography values in chronic liver disease subjects were 6.15 kPa and 3.14-16.7 kPa and were 4.49 kPa and 2.92-7.32 kPa in normal subjects, respectively. With respect to fibrosis detected by liver biopsy, shear wave elastography did not change significantly between F0 and F1 (p = 0.334), F1 and F2 (p = 0.611), or F3 and F4 (0.327); a significant difference was observed between the F0-F2 and F3-F4 groups (p = 0.002). SWE also correlated with inflammatory activity (Rs = 0.443, p = 0.0023) and ALT levels (Rs = 0.287, p = 0.0804). Age, sex and body mass index did not affect shear wave elastography measurements. Using receiver operator characteristic curves, two threshold values for shear wave elastography were identified: 5.62 kPa for patients with fibrosis (>=F2; sensitivity 80%, specificity 69.4%, and accuracy 77%) and 7.04 kPa for patients with severe fibrosis (>=F3; sensitivity 88.9%, specificity 81%, and accuracy 89%). Overall interobserver agreement was excellent and was analysed using an interclass correlation coefficient (0.94; CI 0.87-0.97).This study shows that shear wave elastography executed by skilled operators can be performed on almost all chronic liver disease patients with high reproducibility. It is not influenced by age, sex or body mass index, identifies severely fibrotic patients and is also related to inflammatory activity. PMID- 29023555 TI - Assessing the individual risk of fecal poliovirus shedding among vaccinated and non-vaccinated subjects following national health weeks in Mexico. AB - BACKGROUND: Mexico introduced inactivated polio vaccine (IPV) into its routine immunization (RI) schedule in 2007 but continued to give trivalent oral polio vaccine (tOPV) twice a year during national health weeks (NHW) through 2015. OBJECTIVES: To evaluate individual variables associated with poliovirus (PV) shedding among children with IPV-induced immunity after vaccination with tOPV and their household contacts. MATERIALS AND METHODS: We recruited 72 children (both genders, <=30 months, vaccinated with at least two doses of IPV) and 144 household contacts (both genders, 2 per household, children and adults) between 08/2010 and 09/2010 in Orizaba, Veracruz. Three NHW took place (one before and two after enrollment). We collected fecal samples monthly for 12 months, and tested 2500 samples for polioviruses types 1, 2 and 3 with three serotype specific singleplex real-time RT-PCR (rRT-PCR) assays. In order to increase the specificity for OPV virus, all positive and 112 negative samples were also processed with a two-step, OPV serotype-specific multiplex rRT-PCR. ANALYSIS: We estimated adjusted hazard ratios (HR) and 95% CI using Cox proportional hazards regression for recurrent events models accounting for individual clustering to assess the association of individual variables with the shedding of any poliovirus for all participants and stratifying according to whether the participant had received tOPV in the month of sample collection. RESULTS: 216 participants were included. Of the 2500 collected samples, using the singleplex rRT-PCR assay, PV was detected in 5.7% (n = 142); PV1 in 1.2% (n = 29), PV2 in 4.1% (n = 103), and PV3 in 1.9% (n = 48). Of the 256 samples processed by multiplex rRT-PCR, PV was detected in 106 (PV1 in 16.41% (n = 42), PV2 in 21.09% (n = 54), and PV3 in 23.05% (n = 59). Both using singleplex and multiplex assays, shedding of OPV among non-vaccinated children and subjects older than 5 years of age living in the same household was associated with shedding of PV2 by a household contact. All models were adjusted by sex, age, IPV vaccination and OPV shedding by the same individual during the previous month of sample collection. CONCLUSION: Our results provide important evidence regarding the circulation of poliovirus in a mixed vaccination context (IPV+OPV) which mimics the "transitional phase" that occurs when countries use both vaccines simultaneously. Shedding of OPV2 by household contacts was most likely the source of infection of non-vaccinated children and subjects older than 5 years of age living in the same household. PMID- 29023556 TI - Lumbar spinal canal MRI diameter is smaller in herniated disc cauda equina syndrome patients. AB - INTRODUCTION: Correlation between magnetic resonance imaging (MRI) and clinical features in cauda equina syndrome (CES) is unknown; nor is known whether there are differences in MRI spinal canal size between lumbar herniated disc patients with CES versus lumbar herniated discs patients without CES, operated for sciatica. The aims of this study are 1) evaluating the association of MRI features with clinical presentation and outcome of CES and 2) comparing lumbar spinal canal diameters of lumbar herniated disc patients with CES versus lumbar herniated disc patients without CES, operated because of sciatica. METHODS: MRIs of CES patients were assessed for the following features: level of disc lesion, type (uni- or bilateral) and severity of caudal compression. Pre- and postoperative clinical features (micturition dysfunction, defecation dysfunction, altered sensation of the saddle area) were retrieved from the medical files. In addition, anteroposterior (AP) lumbar spinal canal diameters of CES patients were measured at MRI. AP diameters of lumbar herniated disc patients without CES, operated for sciatica, were measured for comparison. RESULTS: 48 CES patients were included. At MRI, bilateral compression was seen in 82%; complete caudal compression in 29%. MRI features were not associated with clinical presentation nor outcome. AP diameter was measured for 26 CES patients and for 31 lumbar herniated disc patients without CES, operated for sciatica. Comparison displayed a significant smaller AP diameter of the lumbar spinal canal in CES patients (largest p = 0.002). Compared to average diameters in literature, diameters of CES patients were significantly more often below average than that of the sciatica patients (largest p = 0.021). CONCLUSION: This is the first study demonstrating differences in lumbar spinal canal size between lumbar herniated disc patients with CES and lumbar herniated disc patients without CES, operated for sciatica. This finding might imply that lumbar herniated disc patients with a relative small lumbar spinal canal might need to be approached differently in managing complaints of herniated disc. Since the number of studied patients is relatively small, further research should be conducted before clinical consequences are considered. PMID- 29023558 TI - Correction: Glycoside Hydrolase MoGls2 Controls Asexual/Sexual Development, Cell Wall Integrity and Infectious Growth in the Rice Blast Fungus. AB - [This corrects the article DOI: 10.1371/journal.pone.0162243.]. PMID- 29023557 TI - STARD 2015 was reproducible in a large set of studies on glaucoma. AB - AIM: To investigate the reproducibility of the updated Standards for the Reporting of Diagnostic Accuracy Studies tool (STARD 2015) in a set of 106 studies included in a Cochrane diagnostic test accuracy (DTA) systematic review of imaging tests for diagnosing manifest glaucoma. METHODS: One senior rater with DTA methodological and clinical expertise used STARD 2015 on all studies, and each of three raters with different training profiles assessed about a third of the studies. RESULTS: Raw agreement was very good or almost perfect between the senior rater and an ophthalmology resident with DTA methods training, acceptable with a clinical rater with little DTA methods training, and only moderate with a pharmacology researcher with general, but not DTA, systematic review training and no clinical expertise. The relationship between adherence with STARD 2015 and methodological quality with QUADAS 2 was only partial and difficult to investigate, suggesting that raters used substantial context knowledge in risk of bias assessment. CONCLUSIONS: STARD 2015 proved to be reproducible in this specific research field, provided that both clinical and DTA methodological expertise are achieved through training of its users. PMID- 29023559 TI - The relationship between orexin levels and blood pressure changes in patients with narcolepsy. AB - STUDY OBJECTIVE: Narcolepsy type 1 (NT1) is caused by a deficiency or absence of the neurotransmitter orexin. NT1 is also associated with a reduced nocturnal "dipping" of blood pressure (BP). The study objective was to analyze whether nocturnal BP values differed in patients depleted of orexin, versus those in whom production was preserved. METHODS: We performed a retrospective analysis of the polysomnographic recordings, orexin levels, and BP values of patients with NT1. Data was collected from a total of 21 patients, divided into two groups as follows: those with a complete depletion of orexin (n = 11) (Group1), and those with a remaining, limited presence of orexin (n = 10) (Group 2). RESULTS: The groups did not differ in terms of the clinical features of NT1 or sleep characteristics, with an exception of increased number of cataplexy episodes and increased percentage of sleep stage 2 in the Group 1. Daytime and nocturnal BP did not differ between the groups. Most patients, regardless of group, had a non dipping blood pressure pattern, and no difference in dipping prevalence was observed between groups. The amplitude of the daytime to nighttime change in BP did not differ between the groups. CONCLUSIONS: Non-dipping BP patterns are frequent among patients with narcolepsy type 1, but we saw no evidence that they depended on whether orexin levels were above or below the assay detection threshold. Therefore, our results do not support the hypothesis that in patients with narcolepsy type 1 residual orexin levels play a role in the control of nocturnal BP dipping. PMID- 29023560 TI - Effects of fire frequency on litter decomposition as mediated by changes to litter chemistry and soil environmental conditions. AB - Litter quality and soil environmental conditions are well-studied drivers influencing decomposition rates, but the role played by disturbance legacy, such as fire history, in mediating these drivers is not well understood. Fire history may impact decomposition directly, through changes in soil conditions that impact microbial function, or indirectly, through shifts in plant community composition and litter chemistry. Here, we compared early-stage decomposition rates across longleaf pine forest blocks managed with varying fire frequencies (annual burns, triennial burns, fire-suppression). Using a reciprocal transplant design, we examined how litter chemistry and soil characteristics independently and jointly influenced litter decomposition. We found that both litter chemistry and soil environmental conditions influenced decomposition rates, but only the former was affected by historical fire frequency. Litter from annually burned sites had higher nitrogen content than litter from triennially burned and fire suppression sites, but this was correlated with only a modest increase in decomposition rates. Soil environmental conditions had a larger impact on decomposition than litter chemistry. Across the landscape, decomposition differed more along soil moisture gradients than across fire management regimes. These findings suggest that fire frequency has a limited effect on litter decomposition in this ecosystem, and encourage extending current decomposition frameworks into disturbed systems. However, litter from different species lost different masses due to fire, suggesting that fire may impact decomposition through the preferential combustion of some litter types. Overall, our findings also emphasize the important role of spatial variability in soil environmental conditions, which may be tied to fire frequency across large spatial scales, in driving decomposition rates in this system. PMID- 29023562 TI - Efficacy of chemical disinfectants for the containment of the salamander chytrid fungus Batrachochytrium salamandrivorans. AB - The recently emerged chytrid fungus Batrachochytrium salamandrivorans (Bsal) causes European salamander declines. Proper hygiene protocols including disinfection procedures are crucial to prevent disease transmission. Here, the efficacy of chemical disinfectants in killing Bsal was evaluated. At all tested conditions, Biocidal(r), Chloramine-T(r), Dettol medical(r), Disolol(r), ethanol, F10(r), Hibiscrub(r), potassium permanganate, Safe4(r), sodium hypochlorite, and Virkon S(r), were effective at killing Bsal. Concentrations of 5% sodium chloride or lower, 0.01% peracetic acid and 0.001-1% copper sulphate were inactive against Bsal. None of the conditions tested for hydrogen peroxide affected Bsal viability, while it did kill Batrachochytrium dendrobatidis (Bd). For Bsal, enzymatic breakdown of hydrogen peroxide by catalases and specific morphological features (clustering of sporangia, development of new sporangia within the original sporangium), were identified as fungal factors altering susceptibility to several of the disinfectants tested. Based on the in vitro results we recommend 1% Virkon S(r), 4% sodium hypochlorite and 70% ethanol for disinfecting equipment in the field, lab or captive setting, with a minimal contact time of 5 minutes for 1% Virkon S(r) and 1 minute for the latter disinfectants. These conditions not only efficiently target Bsal, but also Bd and Ranavirus. PMID- 29023561 TI - Expression patterns and promoter analyses of aluminum-responsive NAC genes suggest a possible growth regulation of rice mediated by aluminum, hormones and NAC transcription factors. AB - In acid soils, the solubilized form of aluminum, Al+3, decreases root growth and affects the development of most crops. However, like other toxic elements, Al can have hormetic effects on plant metabolism. Rice (Oryza sativa) is one of the most tolerant species to Al toxicity, and when this element is supplied at low doses, growth stimulation has been observed, which could be due to combined mechanisms that are partly triggered by NAC transcription factors. This protein family can regulate vital processes in plants, including growth, development, and response to environmental stimuli, whether biotic or abiotic. Under our experimental conditions, 200 MUM Al stimulated root growth and the formation of tillers; it also caused differential expression of a set of NAC genes. The promoter regions of the genes regulated by Al were analyzed and the cis-acting elements that are potentially involved in the responses to different stimuli, including environmental stress, were identified. Through the Genevestigator platform, data on the expression of NAC genes were obtained by experimental condition, tissue, and vegetative stage. This is the first study on NAC genes where in vivo and in silico data are complementarily analyzed, relating the hormetic effect of Al on plant growth and gene expression with a possible interaction in the response to phytohormones in rice. These findings could help to elucidate the possible convergence between the signaling pathways mediated by phytohormones and the role of the NAC transcription factors in the regulation of growth mediated by low Al doses. PMID- 29023563 TI - Influence of platinum harmonized textile on neuromuscular, systemic and subjective recovery. AB - The clothing manufacturer Venex Life-Science tracks the strategy to enhance recovery process through implementing platinum harmonized technology (PHT) into their Venex(r) Regeneration Wear. The proposed mechanisms of the regeneration wear are an increase of parasympathetic activity and an increase of the temperature due far-infrared radiation. The purpose of this study was to investigate potential effects of Venex regeneration wear on the recovery of neuromuscular, systemic and subjective parameters following exercise. In a randomized, single-blinded cross-over design, 13 strength-trained male participants performed two exercise sessions in one day. After the first exercise session and for 3 nights following the exercise day participants wore the Venex regeneration wear or a placebo product. Measures of isometric maximum voluntary contraction (MVC), voluntary activation (VA) and potentiated twitch torque (PTT) of the knee extensors, as well as maximum jump height during the Counter-Movement and Drop Jump, creatinkinase (CK) and subjective parameters (perceived pain, recovery condition and sleep quality) were obtained before and after each exercise session and 24, 48, and 72 hours after the first exercise session. MVC, PTT, CK and jump parameters changed over time during the exercise day as well as on the following days, however, there were no significant differences between treatments. Subjective parameters showed strong effect sizes (i. e. Cohen's d > 0.6) in favor for Venex but no significant differences between treatments. Based on these findings, it is concluded that wearing a platinum harmonized textile following exercise did not improve neuromuscular and systemic recovery in a trained male population to a statistical noticeable extent. However, the findings for the subjective parameters suggest some potential for enhanced recovery that requires further research. PMID- 29023564 TI - Large (>=3cm) thyroid nodules with benign cytology: Can Thyroid Imaging Reporting and Data System (TIRADS) help predict false-negative cytology? AB - BACKGROUND: There is controversy about the accuracy of the fine-needle aspiration (FNA) cytology results in large sized thyroid nodules. Our aim was to evaluate the false-negative rate of FNA for large thyroid nodules and the usefulness of the Thyroid Imaging Reporting and Data System (TIRADS) in predicting false negative cytology for large thyroid nodules with benign cytology. METHODS: 632 thyroid nodules larger than or equal to 3cm in size with subsequent benign cytology on US-guided FNA were included. US features of internal composition, echogenicity, margin, calcifications, and shape were evaluated, and nodules were classified according to TIRADS. TIRADS category 3 included nodules without any of the following suspicious features:solidity, hypoechogenicity or marked hypoechogenicity, microlobulated or irregular margins, microcalcifications, and taller-than-wide shape. Category 4a, 4b, 4c, and 5 were assigned to nodules showing one, two, three or four, or five suspicious US features, respectively. US features associated with malignancy for these lesions were analyzed and malignancy risk according to TIRADS was calculated. RESULTS: Of the 632 lesions, 23 lesions(3.6%) were malignant and 609(96.4%) were benign, suggesting a 3.6% false-negative rate for FNA cytology. Of the 23 malignant lesions, final pathology was mainly follicular carcinoma minimally invasive(65.2%, 15/23) and the follicular variant of papillary carcinoma(26.1%, 6/23). The malignancy risks of categories 3, 4a, 4b, and 4c nodules were 0.9%, 4.6%, 10.0%, and 11.8%, respectively. CONCLUSION: Large thyroid nodules with benign cytology had a relatively high false-negative risk of 3.6% and TIRADS was helpful in predicting false-negative cytology for these lesions. PMID- 29023565 TI - Urbanity as a determinant of exposure to grass pollen in Helsinki Metropolitan area, Finland. AB - Little is known about the levels of exposure to grass pollen in urban environments. We assessed the spatio-temporal variation of grass pollen concentrations and the role of urbanity as a determinant of grass pollen exposure in the Helsinki Metropolitan area. We monitored grass pollen concentrations in 2013 at 16 sites during the peak pollen season by using rotorod-type samplers at the breathing height. The sites were in the cities of Helsinki and Espoo, Finland, and formed city-specific lines that represented urban-rural gradient. The monitoring sites were both visually and based on land use data ranked as high to low (graded 1 to 8) pollen area. The lowest grass pollen concentrations were observed in the most urban sites compared to the least urban sites (mean 3.6 vs. 6.8 grains/m3 in Helsinki; P<0.0001, and 5.2 vs. 87.5 grains/m3 in Espoo; P<0.0001). Significant differences were observed between concentrations measured in morning periods compared to afternoon periods (4.9 vs. 5.4 in Helsinki, P = 0.0186, and 21.8 vs. 67.1 in Espoo, P = 0.0004). The mean pollen concentration increased with decreasing urbanity both in Helsinki (0.59 grains/m3 per urbanity rank, 95% CI 0.25-0.93) and Espoo (8.42, 6.23-10.61). Pollen concentrations were highest in the afternoons and they were related to the ambient temperature. Urbanity was a strong and significant determinant of pollen exposure in two Finnish cities. Pollen exposure can periodically reach such high levels even in the most urban environments that can cause allergic reactions among individuals with allergies. PMID- 29023566 TI - Cardiac leiomodin2 binds to the sides of actin filaments and regulates the ATPase activity of myosin. AB - Leiomodin proteins are vertebrate homologues of tropomodulin, having a role in the assembly and maintenance of muscle thin filaments. Leiomodin2 contains an N terminal tropomodulin homolog fragment including tropomyosin-, and actin-binding sites, and a C-terminal Wiskott-Aldrich syndrome homology 2 actin-binding domain. The cardiac leiomodin2 isoform associates to the pointed end of actin filaments, where it supports the lengthening of thin filaments and competes with tropomodulin. It was recently found that cardiac leiomodin2 can localise also along the length of sarcomeric actin filaments. While the activities of leiomodin2 related to pointed end binding are relatively well described, the potential side binding activity and its functional consequences are less well understood. To better understand the biological functions of leiomodin2, in the present work we analysed the structural features and the activities of Rattus norvegicus cardiac leiomodin2 in actin dynamics by spectroscopic and high-speed sedimentation approaches. By monitoring the fluorescence parameters of leiomodin2 tryptophan residues we found that it possesses flexible, intrinsically disordered regions. Leiomodin2 accelerates the polymerisation of actin in an ionic strength dependent manner, which relies on its N-terminal regions. Importantly, we demonstrate that leiomodin2 binds to the sides of actin filaments and induces structural alterations in actin filaments. Upon its interaction with the filaments leiomodin2 decreases the actin-activated Mg2+-ATPase activity of skeletal muscle myosin. These observations suggest that through its binding to side of actin filaments and its effect on myosin activity leiomodin2 has more functions in muscle cells than it was indicated in previous studies. PMID- 29023567 TI - Carbapenem-resistant Enterobacteriaceae colonization (CRE) and subsequent risk of infection and 90-day mortality in critically ill patients, an observational study. AB - BACKGROUND: Carbapenem-resistant Enterobacteriaceae (CRE) have emerged as an urgent public health threat. Intestinal colonization with CRE has been identified as a risk factor for the development of systemic CRE infection, but has not been compared to colonization with third and/or fourth generation cephalosporin resistant (Ceph-R) Enterobacteriaceae. Moreover, the risk conferred by colonization on adverse outcomes is less clear, particularly in critically ill patients admitted to the intensive care unit (ICU). METHODS: We carried out a cohort study of consecutive adult patients screened for rectal colonization with CRE or Ceph-R upon ICU entry between April and July 2013. We identified clinical variables and assessed the relationship between CRE or Ceph-R colonization and subsequent systemic CRE infection within 30 days (primary outcome) and all-cause mortality within 90 days (secondary outcome). RESULTS: Among 338 ICU patients, 94 (28%) were colonized with either Ceph-R or CRE. 26 patients developed CRE infection within 30 days of swab collection; 47% (N = 17/36) of CRE-colonized and 3% (N = 2/58) of Ceph-R colonized patients. 36% (N = 13/36) of CRE-colonized patients died within 90 days compared to 31% (N = 18/58) of Ceph-R-colonized and 15% (N = 37/244) of non-colonized patients. In a multivariable analysis, CRE colonization independently predicted development of a systemic CRE infection at 30 days (aOR 10.8, 95% CI2.8-41.9, p = 0.0006); Ceph-R colonization did not (aOR 0.5, 95% CI0.1-3.3, p = 0.5). CRE colonization was associated with increased 90 day mortality in a univariable analysis (p-value 0.001), in a multivariable model, previous hospitalization and medical ICU admission were independent predictors of 90-day mortality whereas CRE colonization approached significance (aOR 2.3, 95% CI1.0-5.3, p = 0.056). CONCLUSIONS: Our study highlights the increased risk of CRE infection and mortality in patients with CRE colonization at the time of ICU admission. Future studies are needed to assess how CRE colonization can guide empiric antibiotic choices and to develop novel decolonization strategies. PMID- 29023568 TI - Demonstrating the reliability of transdiagnostic mHealth Routine Outcome Monitoring in mental health services using experience sampling technology. AB - BACKGROUND: Routine Outcome Monitoring (ROM) should provide a dynamic, within treatment forward feedback loop to guide individual treatment decisions across diagnostic categories. It has been suggested that the Experience Sampling Method (ESM), capturing the film of daily life adaptive processes, offers a flexible, personalised and transdiagnostic feedback system for monitoring and adapting treatment strategies. This is the first study that uses an ESM application (the PsyMateTM) as a routine mobile-ROM (mROM) tool in an ambulatory mental health setting. OBJECTIVE: To demonstrate adequate psychometric properties of the PsyMateTM app assessing both symptom severity levels as well as daily life functioning. METHOD: In a transdiagnostic sample of 64 outpatients, an mROM protocol (ESM for 6 days, at 10 semi-random moments a day) and a standard ROM instrument (HADS) were administered at baseline and at three-month follow-up. We measured positive affect (PA), negative affect (NA), quality of sleep, positive social interaction, activity-related stress, tiredness, and feeling unwell. RESULTS: Subjects completed 53% of the measurements at baseline (N = 64) and 48% at follow-up (N = 29). Factor analysis and subsequent reliability analysis of PA and NA confirmed the two constructs. Significant and meaningful correlations were found between PA, NA and HADS scores (ranging from r = .4 to r = .7). Multilevel analyses yielded significant change scores for all measures. CONCLUSION: The ESM based, transdiagnostic mROM tool can be used reliably in clinical settings: it shows adequate psychometric properties, as well as concurrent validity and sensitivity to change over time with respect to relevant ROM constructs. Person tailored items can be added. In addition, mROM offers added value over standard symptom-based ROM, as it provides information on adaptive functioning in the daily environment of patients. PMID- 29023569 TI - Pancreatic and snake venom presynaptically active phospholipases A2 inhibit nicotinic acetylcholine receptors. AB - Phospholipases A2 (PLA2s) are enzymes found throughout the animal kingdom. They hydrolyze phospholipids in the sn-2 position producing lysophospholipids and unsaturated fatty acids, agents that can damage membranes. PLA2s from snake venoms have numerous toxic effects, not all of which can be explained by phospholipid hydrolysis, and each enzyme has a specific effect. We have earlier demonstrated the capability of several snake venom PLA2s with different enzymatic, cytotoxic, anticoagulant and antiproliferative properties, to decrease acetylcholine-induced currents in Lymnaea stagnalis neurons, and to compete with alpha-bungarotoxin for binding to nicotinic acetylcholine receptors (nAChRs) and acetylcholine binding protein. Since nAChRs are implicated in postsynaptic and presynaptic activities, in this work we probe those PLA2s known to have strong presynaptic effects, namely beta-bungarotoxin from Bungarus multicinctus and crotoxin from Crotalus durissus terrificus. We also wished to explore whether mammalian PLA2s interact with nAChRs, and have examined non-toxic PLA2 from porcine pancreas. It was found that porcine pancreatic PLA2 and presynaptic beta bungarotoxin blocked currents mediated by nAChRs in Lymnaea neurons with IC50s of 2.5 and 4.8 MUM, respectively. Crotoxin competed with radioactive alpha bungarotoxin for binding to Torpedo and human alpha7 nAChRs and to the acetylcholine binding protein. Pancreatic PLA2 interacted similarly with these targets; moreover, it inhibited radioactive alpha-bungarotoxin binding to the water-soluble extracellular domain of human alpha9 nAChR, and blocked acetylcholine induced currents in human alpha9alpha10 nAChRs heterologously expressed in Xenopus oocytes. These and our earlier results show that all snake PLA2s, including presynaptically active crotoxin and beta-bungarotoxin, as well as mammalian pancreatic PLA2, interact with nAChRs. The data obtained suggest that this interaction may be a general property of all PLA2s, which should be proved by further experiments. PMID- 29023570 TI - Species-specific roles of sulfolipid metabolism in acclimation of photosynthetic microbes to sulfur-starvation stress. AB - Photosynthetic organisms utilize sulfate for the synthesis of sulfur-compounds including proteins and a sulfolipid, sulfoquinovosyl diacylglycerol. Upon ambient deficiency in sulfate, cells of a green alga, Chlamydomonas reinhardtii, degrade the chloroplast membrane sulfolipid to ensure an intracellular-sulfur source for necessary protein synthesis. Here, the effects of sulfate-starvation on the sulfolipid stability were investigated in another green alga, Chlorella kessleri, and two cyanobacteria, Synechocystis sp. PCC 6803 and Synechococcus elongatus PCC 7942. The results showed that sulfolipid degradation was induced only in C. kessleri, raising the possibility that this degradation ability was obtained not by cyanobacteria, but by eukaryotic algae during the evolution of photosynthetic organisms. Meanwhile, Synechococcus disruptants concerning sqdB and sqdX genes, which are involved in successive reactions in the sulfolipid synthesis pathway, were respectively characterized in cellular response to sulfate-starvation. Phycobilisome degradation intrinsic to Synechococcus, but not to Synechocystis, and cell growth under sulfate-starved conditions were repressed in the sqdB and sqdX disruptants, respectively, relative to in the wild type. Their distinct phenotypes, despite the common loss of the sulfolipid, inferred specific roles of sqdB and sqdX. This study demonstrated that sulfolipid metabolism might have been developed to enable species- or cyanobacterial-strain dependent processes for acclimation to sulfate-starvation. PMID- 29023571 TI - PICKLE 2.0: A human protein-protein interaction meta-database employing data integration via genetic information ontology. AB - It has been acknowledged that source databases recording experimentally supported human protein-protein interactions (PPIs) exhibit limited overlap. Thus, the reconstruction of a comprehensive PPI network requires appropriate integration of multiple heterogeneous primary datasets, presenting the PPIs at various genetic reference levels. Existing PPI meta-databases perform integration via normalization; namely, PPIs are merged after converted to a certain target level. Hence, the node set of the integrated network depends each time on the number and type of the combined datasets. Moreover, the irreversible a priori normalization process hinders the identification of normalization artifacts in the integrated network, which originate from the nonlinearity characterizing the genetic information flow. PICKLE (Protein InteraCtion KnowLedgebasE) 2.0 implements a new architecture for this recently introduced human PPI meta-database. Its main novel feature over the existing meta-databases is its approach to primary PPI dataset integration via genetic information ontology. Building upon the PICKLE principles of using the reviewed human complete proteome (RHCP) of UniProtKB/Swiss-Prot as the reference protein interactor set, and filtering out protein interactions with low probability of being direct based on the available evidence, PICKLE 2.0 first assembles the RHCP genetic information ontology network by connecting the corresponding genes, nucleotide sequences (mRNAs) and proteins (UniProt entries) and then integrates PPI datasets by superimposing them on the ontology network without any a priori transformations. Importantly, this process allows the resulting heterogeneous integrated network to be reversibly normalized to any level of genetic reference without loss of the original information, the latter being used for identification of normalization biases, and enables the appraisal of potential false positive interactions through PPI source database cross checking. The PICKLE web-based interface (www.pickle.gr) allows for the simultaneous query of multiple entities and provides integrated human PPI networks at either the protein (UniProt) or the gene level, at three PPI filtering modes. PMID- 29023572 TI - Computer aided detection in prostate cancer diagnostics: A promising alternative to biopsy? A retrospective study from 104 lesions with histological ground truth. AB - BACKGROUND: Prostate cancer (PCa) diagnosis by means of multiparametric magnetic resonance imaging (mpMRI) is a current challenge for the development of computer aided detection (CAD) tools. An innovative CAD-software (Watson ElementaryTM) was proposed to achieve high sensitivity and specificity, as well as to allege a correlate to Gleason grade. AIM/OBJECTIVE: To assess the performance of Watson ElementaryTM in automated PCa diagnosis in our hospital's database of MRI-guided prostate biopsies. METHODS: The evaluation was retrospective for 104 lesions (47 PCa, 57 benign) from 79, 64.61+/-6.64 year old patients using 3T T2-weighted imaging, Apparent Diffusion Coefficient (ADC) maps and dynamic contrast enhancement series. Watson ElementaryTM utilizes signal intensity, diffusion properties and kinetic profile to compute a proportional Gleason grade predictor, termed Malignancy Attention Index (MAI). The analysis focused on (i) the CAD sensitivity and specificity to classify suspect lesions and (ii) the MAI correlation with the histopathological ground truth. RESULTS: The software revealed a sensitivity of 46.80% for PCa classification. The specificity for PCa was found to be 75.43% with a positive predictive value of 61.11%, a negative predictive value of 63.23% and a false discovery rate of 38.89%. CAD classified PCa and benign lesions with equal probability (P 0.06, chi2 test). Accordingly, receiver operating characteristic analysis suggests a poor predictive value for MAI with an area under curve of 0.65 (P 0.02), which is not superior to the performance of board certified observers. Moreover, MAI revealed no significant correlation with Gleason grade (P 0.60, Pearson's correlation). CONCLUSION: The tested CAD software for mpMRI analysis was a weak PCa biomarker in this dataset. Targeted prostate biopsy and histology remains the gold standard for prostate cancer diagnosis. PMID- 29023573 TI - Enhanced passive screening and diagnosis for gambiense human African trypanosomiasis in north-western Uganda - Moving towards elimination. AB - INTRODUCTION: The incidence of gambiense human African trypanosomiasis (gHAT) in Uganda has been declining, from 198 cases in 2008, to only 20 in 2012. Interruption of transmission of the disease by early diagnosis and treatment is core to the control and eventual elimination of gHAT. Until recently, the format of available screening tests had restricted screening and diagnosis to central health facilities (passive screening). We describe a novel strategy that is contributing to elimination of gHAT in Uganda through expansion of passive screening to the entire population at risk. METHODOLOGY / PRINCIPAL FINDINGS: In this strategy, patients who are clinically suspected of having gHAT at primary health facilities are screened using a rapid diagnostic test (RDT), followed by parasitological confirmation at strategically located microscopy centres. For patients who are positive with the RDT and negative by microscopy, blood samples undergo further testing using loop-mediated isothermal amplification (LAMP), a molecular test that detects parasite DNA. LAMP positive patients are considered strong suspects, and are re-evaluated by microscopy. Location and upgrading of facilities to perform microscopy and LAMP was informed by results of georeferencing and characterization of all public healthcare facilities in the 7 gHAT endemic districts in Uganda. Three facilities were upgraded to perform RDTs, microscopy and LAMP, 9 to perform RDTs and microscopy, and 200 to screen patients with RDTs. This reduced the distance that a sick person must travel to be screened for gHAT to a median distance of 2.5km compared to 23km previously. In this strategy, 9 gHAT cases were diagnosed in 2014, and 4 in 2015. CONCLUSIONS: This enhanced passive screening strategy for gHAT has enabled full coverage of the population at risk, and is being replicated in other gHAT endemic countries. The improvement in case detection is making elimination of the disease in Uganda an imminent possibility. PMID- 29023575 TI - Different transferability of incompatibility (Inc) P-7 plasmid pCAR1 and IncP-1 plasmid pBP136 in stirring liquid conditions. AB - Self-transmissible plasmids are classified into two types based on their sex pili: short and rigid pili, and long and flexible pili. The transferability of two plasmids with different types of sex pili, pBP136 and pCAR1, was compared in stirring liquid conditions with different cell density. The most probable number method to count transconjugants could detect differences in the transfer frequency with higher resolution in comparison with the conventional CFU counting method. Both plasmids showed higher transfer frequency in high stirring rates than static liquid conditions when the donor and recipient density was 106-107 CFU mL-1. The probability of donor-initiated plasmid transfer was investigated by a single-cell-level analysis using a cell sorter. The probability was >36-fold higher for pBP136 than for pCAR1; thus, the simulated transfer frequency of pBP136 was much higher than that of pCAR1 in stirring liquid conditions. Nevertheless, the transfer frequency of pCAR1 was as high as that of pBP136 when the donor and recipient cell density was 106 CFU mL-1. This fact indicates that the lower probability of the donor pCAR1 to initiate transfer could be overcome by its high tolerance to the shearing force between donor and recipient cells under higher stirring liquid conditions. Our findings can explain the different survival strategies of these two types of plasmids based on their preferences of transfer conditions. PMID- 29023574 TI - Human cellular and humoral immune responses to Phlebotomus papatasi salivary gland antigens in endemic areas differing in prevalence of Leishmania major infection. AB - BACKGROUND: Sand fly saliva compounds are able to elicit specific immune responses that have a significant role in Leishmania parasite establishment and disease outcome. Characterizing anti-saliva immune responses in individuals living in well defined leishmaniasis endemic areas would provide valuable insights regarding their effect on parasite transmission and establishment in humans. METHODOLOGY/PRINCIPAL FINDINGS: We explored the cellular and humoral immune responses to Phlebotomus (P.) papatasi salivary gland extracts (SGE) in individuals living in cutaneous leishmaniasis (CL) old or emerging foci (OF, EF). OF was characterized by a higher infection prevalence as assessed by higher proportions of leishmanin skin test (LST) positive individuals compared to EF. Subjects were further subdivided into healed, asymptomatic or naive groups. We showed anti-SGE proliferation in less than 30% of the individuals, regardless of the immune status, in both foci. IFN-gamma production was higher in OF and only observed in immune individuals from OF and naive subjects from EF. Although IL-10 was not detected, addition of anti-human IL-10 antibodies revealed an increase in proliferation and IFN-gamma production only in individuals from OF. The percentage of seropositive individuals was similar in immune and naives groups but was significantly higher in OF. No correlation was observed between anti saliva immune responses and LST response. High anti-SGE-IgG responses were associated with an increased risk of developing ZCL. No differences were observed for anti-SGE humoral or cellular responses among naive individuals who converted or not their LST response or developed or not ZCL after the transmission season. CONCLUSIONS/SIGNIFICANCE: These data suggest that individuals living in an old focus characterized by a frequent exposure to sand fly bites and a high prevalence of infection, develop higher anti-saliva IgG responses and IFN-gamma levels and a skew towards a Th2-type cellular response, probably in favor of parasite establishment, compared to those living in an emerging focus. PMID- 29023577 TI - Sevoflurane protects rat brain endothelial barrier structure and function after hypoxia-reoxygenation injury. AB - BACKGROUND: After cerebral injury blood-brain barrier disruption significantly impairs brain homeostasis. Volatile anesthetics have been shown to be protective in ischemia-reperfusion injury scenarios. Their impact on brain endothelial cells after hypoxia-reoxygenation (H/R) has not yet been studied in detail. METHODS: Rat brain endothelial cells (RBE4) were exposed to severe hypoxia and reoxygenated in air in the presence or absence of sevoflurane. Changes in dextran permeability and architecture of the cellular junctional proteins ZO-1 and beta catenin were measured. To determine necrosis and apoptosis rate DNA content, LDH release and caspase activity were quantified. The role of vascular endothelial growth factor (VEGF) as an inflammatory mediator increasing vascular permeability was assessed. At the same time, it was evaluated if sevoflurane effects are mediated through VEGF. Results were analyzed by unpaired t-tests or one way analysis of variance followed by Bonferroni's correction. RESULTS: H/R led to a 172% increase in permeability (p<0.001), cell swelling and qualitatively but not quantitatively modified expression of ZO-1, beta-catenin and F-actin. In the presence of sevoflurane during reoxygenation, barrier function improved by 96% (p = 0.042) in parallel to a decrease of the cell size and less re-arranged junction proteins and F-actin. Sevoflurane-induced improvement of the barrier function could not be explained on the level of necrosis or apoptosis as they remained unchanged independent of the presence or absence of the volatile anesthetic. Increased expression of VEGF after H/R was attenuated by sevoflurane by 34% (p = 0.004). Barrier protection provided by sevoflurane was similar to the application of a blocking VEGF-antibody. Furthermore, the protective effect of sevoflurane was abolished in the presence of recombinant VEGF. CONCLUSIONS: In H/R-induced rat brain endothelial cell injury sevoflurane maintains endothelial barrier function through downregulation of VEGF, which is a key player not only in mediating injury, but also with regard to the protective effect of sevoflurane. PMID- 29023576 TI - Overexpression of tissue-nonspecific alkaline phosphatase (TNAP) in endothelial cells accelerates coronary artery disease in a mouse model of familial hypercholesterolemia. AB - OBJECTIVE: Overexpression of tissue-nonspecific alkaline phosphatase (TNAP) in endothelium leads to arterial calcification in mice. The purpose of this study was to examine the effect of elevated endothelial TNAP on coronary atherosclerosis. In addition, we aimed to examine endogenous TNAP activity in human myocardium. APPROACH AND RESULTS: A vascular pattern of TNAP activity was observed in human non-failing, ischemic, and idiopathic dilated hearts (5 per group); no differences were noted between groups in this study. Endothelial overexpression of TNAP was achieved in mice harboring a homozygous recessive mutation in the low density lipoprotein receptor (whc allele) utilizing a Tie2 cre recombinase (WHC-eTNAP mice). WHC-eTNAP developed significant coronary artery calcification at baseline compared WHC controls (4312 vs 0MUm2 alizarin red area, p<0.001). Eight weeks after induction of atherosclerosis, lipid deposition in the coronary arteries of WHC-eTNAP was increased compared to WHC controls (121633 vs 9330MUm2 oil red O area, p<0.05). Coronary lesions in WHC-eTNAP mice exhibited intimal thickening, calcifications, foam cells, and necrotic cores. This was accompanied by the reduction in body weight and left ventricular ejection fraction (19.5 vs. 23.6g, p<0.01; 35% vs. 47%, p<0.05). In a placebo-controlled experiment under atherogenic conditions, pharmacological inhibition of TNAP in WHC-eTNAP mice by a specific inhibitor SBI-425 (30mg*kg-1*d-1, for 5 weeks) reduced coronary calcium (78838 vs.144622MUm2) and lipids (30754 vs. 77317MUm2); improved body weight (22.4 vs.18.8g) and ejection fraction (59 vs. 47%). The effects of SBI-425 were significant in the direct comparisons with placebo but disappeared after TNAP-negative placebo-treated group was included in the models as healthy controls. CONCLUSIONS: Endogenous TNAP activity is present in human cardiac tissues. TNAP overexpression in vascular endothelium in mice leads to an unusual course of coronary atherosclerosis, in which calcification precedes lipid deposition. The prevalence and significance of this mechanism in human atherosclerosis requires further investigations. PMID- 29023578 TI - Factors related to environmental barriers experienced by persons with and without disabilities in diverse African settings. AB - This paper explores differences in experienced environmental barriers between individuals with and without disabilities and the impact of additional factors on experienced environmental barriers. Data was collected in 2011-2012 by means of a two-stage cluster sampling and comprised 400-500 households in different sites in South Africa, Sudan Malawi and Namibia. Data were collected through self-report survey questionnaires. In addition to descriptive statistics and simple statistical tests a structural equation model was developed and tested. The combined file comprised 9,307 participants. The Craig Hospital Inventory of Environmental Factors was used to assess the level of environmental barriers. Transportation, the natural environment and access to health care services created the biggest barriers. An exploratory factor analysis yielded support for a one component solution for environmental barriers. A scale was constructed by adding the items together and dividing by number of items, yielding a range from one to five with five representing the highest level of environmental barriers and one the lowest. An overall mean value of 1.51 was found. Persons with disabilities scored 1.66 and persons without disabilities 1.36 (F = 466.89, p < .001). Bivariate regression analyses revealed environmental barriers to be higher among rural respondents, increasing with age and severity of disability, and lower for those with a higher level of education and with better physical and mental health. Gender had an impact only among persons without disabilities, where women report more barriers than men. Structural equation model analysis showed that socioeconomic status was significantly and negatively associated with environmental barriers. Activity limitation is significantly associated with environmental barriers when controlling for a number of other individual characteristics. Reducing barriers for the general population would go some way to reduce the impact of these for persons with activity limitations, but additional and specific adaptations will be required to ensure an inclusive society. PMID- 29023580 TI - Effects of fish movement assumptions on the design of a marine protected area to protect an overfished stock. AB - Marine Protected Areas (MPA) are important management tools shown to protect marine organisms, restore biomass, and increase fisheries yields. While MPAs have been successful in meeting these goals for many relatively sedentary species, highly mobile organisms may get few benefits from this type of spatial protection due to their frequent movement outside the protected area. The use of a large MPA can compensate for extensive movement, but testing this empirically is challenging, as it requires both large areas and sufficient time series to draw conclusions. To overcome this limitation, MPA models have been used to identify designs and predict potential outcomes, but these simulations are highly sensitive to the assumptions describing the organism's movements. Due to recent improvements in computational simulations, it is now possible to include very complex movement assumptions in MPA models (e.g. Individual Based Model). These have renewed interest in MPA simulations, which implicitly assume that increasing the detail in fish movement overcomes the sensitivity to the movement assumptions. Nevertheless, a systematic comparison of the designs and outcomes obtained under different movement assumptions has not been done. In this paper, we use an individual based model, interconnected to population and fishing fleet models, to explore the value of increasing the detail of the movement assumptions using four scenarios of increasing behavioral complexity: a) random, diffusive movement, b) aggregations, c) aggregations that respond to environmental forcing (e.g. sea surface temperature), and d) aggregations that respond to environmental forcing and are transported by currents. We then compare these models to determine how the assumptions affect MPA design, and therefore the effective protection of the stocks. Our results show that the optimal MPA size to maximize fisheries benefits increases as movement complexity increases from ~10% for the diffusive assumption to ~30% when full environment forcing was used. We also found that in cases of limited understanding of the movement dynamics of a species, simplified assumptions can be used to provide a guide for the minimum MPA size needed to effectively protect the stock. However, using oversimplified assumptions can produce suboptimal designs and lead to a density underestimation of ca. 30%; therefore, the main value of detailed movement dynamics is to provide more reliable MPA design and predicted outcomes. Large MPAs can be effective in recovering overfished stocks, protect pelagic fish and provide significant increases in fisheries yields. Our models provide a means to empirically test this spatial management tool, which theoretical evidence consistently suggests as an effective alternative to managing highly mobile pelagic stocks. PMID- 29023579 TI - Role of the N-terminus for the stability of an amyloid-beta fibril with three fold symmetry. AB - A key player in Alzheimer's disease is the peptide amyloid-beta (Abeta), whose aggregation into small soluble oligomers, protofilaments, and fibrils finally leads to plaque deposits in human brains. The aggregation behavior of Abeta is strongly modulated by the nature and composition of the peptide's environment and by its primary sequence properties. The N-terminal residues of Abeta play an important role, because they are known to change the peptide's aggregation propensity. Since these residues are for the first time completely resolved at the molecular level in a three-fold symmetric fibril structure derived from a patient, we chose that system as template for a systematic investigation of the influence of the N-terminus upon structural stability. Using atomistic molecular dynamics simulations, we examined several fibrillar systems comprising three, six, twelve and an infinite number of layers, both with and without the first eight residues. First, we found that three layers are not sufficient to stabilize the respective Abeta topology. Second, we observed a clear stabilizing effect of the N-terminal residues upon the overall fibril fold: truncated Abeta systems were less stable than their full-length counterparts. The N-terminal residues Arg5, Asp7, and Ser8 were found to form important interfilament contacts stabilizing the overall fibril structure of three-fold symmetry. Finally, similar structural rearrangements of the truncated Abeta species in different simulations prompted us to suggest a potential mechanism involved in the formation of amyloid fibrils with three-fold symmetry. PMID- 29023583 TI - Correction: Prognostic value of long non-coding RNA CCAT1 expression in patients with cancer: A meta-analysis. AB - [This corrects the article DOI: 10.1371/journal.pone.0179346.]. PMID- 29023581 TI - Activating and inhibitory receptors on natural killer cells in patients with systemic lupus erythematosis-regulation with interleukin-15. AB - Natural killer (NK) cells may play an important role in the pathogenesis of SLE. Interleukin(IL)-15, an NK-enhancing cytokine, is over-expressed in SLE patients. In the present study, we examined the effect of IL-15 on NK cytotoxicity of SLE patients, and the expression of various activating and inhibitory NK receptors on NK cells from SLE patients in relation to disease activity. We also sought to determine how IL-15 would affect the NK receptor expression on NK cells from SLE patients. PBMCs were collected from 88 SLE patients with inactive disease activity (SLEDAI score<6) and active disease activity (SLEDAI score>=6), 26 age matched healthy adults were used as controls. PBMC were incubated in the presence or absence of IL-15 (10ng/ml) for eighteen hours. CD3-CD56+ lymphoctes were gated using flow cytometry and further divided into CD56dim and CD56bright subsets according to the MFI of CD56. We observed that 1. Serum IL-15 was elevated in SLE patients, and higher in active disease than in inactive disease; 2. NK cytotoxicity of SLE patients was deficient compared to controls and showed an impaired response to IL-15 compared to controls; 3.CD69, CD94, NKG2A, NKp30, and CD158b on NK cells from SLE patients were higher than controls, and could be further enhanced by IL-15; 4. NKp46 expression from SLE patients was higher than controls, but down-regulated by IL-15; 5.Deficient NKG2D and NKAT-2 expression were found on NK cells from SLE patients, which were enhanced by IL-15; 6. A unique NKp46- subset and CD158b+ subsets were observed in NK cells from SLE patients but not controls. 7. Unlike controls, CD158k on NK cells from SLE patients failed to respond to IL-15. Taken together, we demonstrated the aberrant NCR and iNKR expression on NK cells and their distinct response to IL-15 in SLE patients. As IL-15 predominantly aggravates the aberrant NKR expression found in SLE, IL-15 antagonist may have therapeutic benefits in SLE patients. PMID- 29023582 TI - Presence of children in the home and intimate partner violence among women seeking elective pregnancy termination. AB - INTRODUCTION: Growing evidence identifies adverse health effects for children who witness intimate partner violence at home. Research has also identified that women seeking elective pregnancy termination are at high risk for partner violence. However, little is known about the risk for violence exposure among the children of women seeking elective pregnancy termination. METHODS: We conducted a cross-sectional study of 957 women seeking elective pregnancy termination at a large family planning clinic. All subjects completed a 10-minute, anonymous questionnaire administered by computer in a private room. Our main outcome was 12 month prevalence of physical and/or sexual violence by a current or former partner using the Abuse Assessment Screen instrument. The presence of children under the age of 18 living with the respondent was the main exposure variable. RESULTS: Women with children in the home had more than twice the odds of reporting physical and/or sexual IPV in the past year than women with no children, controlling for age (AOR: 2.23; 95% CI: 1.41-3.85). The increased odds of IPV among women with children as compared to women with no children was present across nearly all sociodemographic and lifestyle characteristics, and significantly higher for the youngest women (18-20 years). The highest odds for abuse occurred among women with children living at home, in a current relationship but not living with their current partner, and abused by a former partner (AOR = 10.9; 95% CI: 3.07-38.4). CONCLUSION: Nearly one of every 14 children identified in this study lived in a home with IPV. These findings support the development of IPV interventions that are family-centered, as well as the integration of trauma-informed care into healthcare settings. Healthcare visits for contraception and pregnancy termination may be ideal opportunities for implementation of screening and family violence interventions. PMID- 29023584 TI - Intravenous fluid prescribing errors in children: Mixed methods analysis of critical incidents. AB - INTRODUCTION: Recent National Institute for Health and Care Excellence (NICE) guidelines aim to improve intravenous (IV) fluid prescribing for children, but existing evidence about how and why fluid prescribing errors occur is limited. Studying this can lead to more effective implementation, through education and systems design. AIMS: Identify types of IV fluid prescribing errors reported in practiceAnalyse factors that contribute to errorsProvide guidance to educators and those responsible for designing systems. METHODS: Mixed methods observational study which analysed critical incident reports relating to IV fluid prescribing errors in children aged 0-16, occurring between 2011 and 2015 in UK secondary care. We quantified characteristics and types of errors, then qualitatively analysed narrative descriptions, identifying underlying contributing factors. RESULTS: In the 40 incidents analysed, principal types of errors were incorrect rate of fluids, inappropriate choice of solution, and incorrect completion of prescription charts. Prescribers had to negotiate complex patients, interactions with other practitioners and teams, and challenging work environments; errors resulted from these inter-related contributing factors. CONCLUSIONS: This study highlights the diverse range and complex nature of IV fluid prescribing errors reported in practice. While these findings have the inherent limitations of critical incident reports, they point to areas of potential improvement in education and systems design. Practising prescribing in context, inducting doctors within the many specialties who contribute to care of children, and educating them in joint working with nurses and pharmacists could help reduce errors. PMID- 29023585 TI - Correlations between local peripapillary choroidal thickness and axial length, optic disc tilt, and papillo-macular position in young healthy eyes. AB - Optical coherence tomography (OCT) has made it possible for clinicians to measure the peripapillary choroidal thickness (ppCT) noninvasively in various ocular diseases. However, the ocular factors associated with the ppCT have not been conclusively determined. The purpose of this study was to determine the relationship between the local ppCT and the axial length, optic disc tilt, and the angle of the papillo-macular position (PMP) in healthy eyes. This was a prospective, observational cross-sectional study of 119 right eyes of 119 healthy Japanese volunteers. The ppCT was manually measured at eight sectors around the optic disc using the B-scan images of the Topcon 3D OCT RNFL 3.4 mm circle scan. The trajectory of the retinal pigment epithelium in the B-scan image was fitted to a sine curve using ImageJ, and the amplitude of the sine curve was used to determine the degree of the optic disc tilt. The PMP angle was determined in the color fundus photographs. The relationships between the ppCT and the axial length, the optic disc tilt, and PMP angle were determined by Spearman and multiple correlation analyses. The mean age was 25.8 +/- 3.9 years and the mean axial length was 25.5 +/- 1.4 mm. The ppCT was significantly and negatively associated with the axial length (R = -0.43 to -0.24, P<0.01) and positively associated with the PMP angle (R = 0.28 to 0.37, P<0.01) in all eight circumpapillary sectors. The temporal and infratemporal ppCTs were significantly and negatively associated with the optic disc tilt (R = -0.31, -0.20, P<0.05). The results of multiple regression analyses were similar to that of Spearman correlation analysis. In conclusion, the axial length and PMP angle can affect the ppCT in all circumferential sectors, however the tilt of the optic disc is correlated with only some of the sectors. This should be remembered in interpreting the ppCT. PMID- 29023586 TI - Reduced resting state connectivity and gray matter volume correlate with cognitive impairment in minimal hepatic encephalopathy. AB - BACKGROUND AND AIMS: Minimal hepatic encephalopathy (MHE) is associated with cognitive alterations and changes in connectivity. We assessed the relationship of the abnormalities of resting-state functional connectivity (rs-FC) and gray matter (GM) volume with different cognitive alterations and biochemical parameters associated to MHE. METHODS: Thirty-nine cirrhotic patients (26 without and 13 with MHE) and 24 controls were widely cognitive assessed with a battery of psychometric tests. Atrophy was determined using Voxel-Based Morphometry and rs FC was assessed by independent component analysis. Receiver operating characteristic (ROC) curves was performed to assess the diagnostic utility of rs FC and GM reduction for the discrimination of patients with and without MHE. Blood ammonia, cGMP, and levels of pro-inflammatory interleukins were measured. RESULTS: MHE patients showed significant decrease of GM volume and lesser degree of rs-FC in different networks related to attention and executive functions as compared to controls and patients without MHE. There is a progressive reduction in rs-FC in the default mode network with the progression of cognitive impairment. MHE patients showed GM reduction in the right frontal lobe, right insula and right cerebellum compared to patients without MHE. Alterations in GM volume and rs-FC correlated with the scores of different cognitive tests. CONCLUSIONS: Decreased cognitive performance is associated by reduced rs-FC and GM atrophy in MHE patients. These changes could have predictive value for detecting MHE. PMID- 29023588 TI - Diet alters performance and transcription patterns in Oedaleus asiaticus (Orthoptera: Acrididae) grasshoppers. AB - We reared Oedaleus asiaticus grasshoppers under four different single-plant diets to examine the relationships among diet, performance, stress, and transcription patterns. Grasshoppers fed only Artemisia frigida (Asteraceae) were stressed, as indicated by their lower growth, size, development, and survival, in comparison to grasshoppers fed on any of three grasses, Cleistogenes squarrosa, Leymus chinensis, or Stipa krylovii (all Poaceae). We then used transcriptome analysis to examine how gene expression levels in O. asiaticus were altered by feeding on these diets. Nymphs fed A. frigida had the largest variation in gene expression profiles with a total of 299 genes significantly up- or down-regulated compared to those feeding on the three grasses: down-regulated genes included those involved in cuticle biosynthesis, DNA replication, biosynthesis and metabolism of nutrition. The up-regulated genes included stress-resistant and detoxifying enzymes. GO and KEGG enrichment analysis also showed that feeding on A. frigida could down-regulate biosynthesis and metabolism related pathways, and up-regulate stress-resistant and detoxification terms and pathways. Our results show that diet significantly altered gene-expression, and that unfavorable, stressful diets induce more transcriptional changes than favorable diets. Altered gene-expression represents phenotypic plasticity, and many such changes appear to be evolved, adaptive responses. The ease and regularity by which individuals shift phenotypes via altered transcription suggests that populations consist not of similar, fixed phenotypes, but of a collection of ever-changing, divergent phenotypes. PMID- 29023587 TI - Genetic variants and traits related to insulin-like growth factor-I and insulin resistance and their interaction with lifestyles on postmenopausal colorectal cancer risk. AB - Genetic variants and traits in metabolic signaling pathways may interact with lifestyle factors such as obesity, physical activity, and exogenous estrogen (E), influencing postmenopausal colorectal cancer (CRC) risk, but these interrelated pathways are not fully understood. In this case-cohort study, we examined 33 single-nucleotide polymorphisms (SNPs) in genes related to insulin-like growth factor-I (IGF-I)/ insulin resistance (IR) traits and signaling pathways, using data from 704 postmenopausal women in Women's Health Initiative Observation ancillary studies. Stratifying by the lifestyle modifiers, we assessed the effects of IGF-I/IR traits (fasting total and free IGF-I, IGF binding protein-3, insulin, glucose, and homeostatic model assessment-insulin resistance) on CRC risk as a mediator or influencing factor. Six SNPs in the INS, IGF-I, and IGFBP3 genes were associated with CRC risk, and those associations differed between non obese/active and obese/inactive women and between E nonusers and users. Roughly 30% of the cancer risk due to the SNP was mediated by IGF-I/IR traits. Likewise, carriers of 11 SNPs in the IRS1 and AKT1/2 genes (signaling pathway-related genetic variants) had different associations with CRC risk between strata, and the proportion of the SNP-cancer association explained by traits varied from 30% to 50%. Our findings suggest that IGF-I/IR genetic variants interact with obesity, physical activity, and exogenous E, altering postmenopausal CRC risk, through IGF-I/IR traits, but also through different pathways. Unraveling gene phenotype-lifestyle interactions will provide data on potential genetic targets in clinical trials for cancer prevention and intervention strategies to reduce CRC risk. PMID- 29023589 TI - Light transmission aggregometry using pre-coated microtiter plates and a Victor X5 plate reader. AB - BACKGROUND: Light transmission aggregometry (LTA) can be performed with microtiter plates (96-well LTA). When conducting LTA, an agonist is added to platelet-rich plasma and the sample is shaken for minutes after which absorbance readings are done. Platelet aggregation is detected as decrease in absorbance. However, the classical method is cumbersome and therefore microtiter plates can be used for concomitant testing of multiple samples. Furthermore, it would be convenient to prepare the plate in advance of platelet aggregation testing. Aim: The aim of the present study was to establish a simplified 96-well LTA protocol, where plates were pre-coated with agonists and stored at -80 C until use. RESULTS: We developed and validated a protocol for 96-well LTA using a Victor X5 plate reader and pre-coated microtiter plates. The minimum requirement of platelet-rich plasma was 45 MUL per sample and the sample platelet count should not be below 100 x109/L. Optimal absorbance reading was 595 nm wavelengths. Platelet aggregation results were higher at 37 degrees C than at room temperature. Platelet adherence to wells after stimulation was observed; it was not avoided by pre-coating of the wells with gelatin. A range of up to 7 concentrations for each agonist (collagen, arachidonic acid, adenosine diphosphate, thrombin receptor-activating peptide and protease-activated receptor 4) was tested concomitantly. A transient rise in platelet aggregation was observed after 2 minutes of shaking in some samples with low agonist concentration, and platelet aggregation was optimal after 10 minutes of shaking for samples with high agonist concentration. Plates could be stored at -80 degrees C for 15 days without significant change in the platelet aggregation results. CONCLUSION: The 96-well LTA is suitable for platelet aggregation testing and a range of agonist concentrations can be concomitantly tested. PMID- 29023591 TI - A combination of selected mapping and clipping to increase energy efficiency of OFDM systems. AB - We propose an energy efficient combination design for OFDM systems based on selected mapping (SLM) and clipping peak-to-average power ratio (PAPR) reduction techniques, and show the related energy efficiency (EE) performance analysis. The combination of two different PAPR reduction techniques can provide a significant benefit in increasing EE, because it can take advantages of both techniques. For the combination, we choose the clipping and SLM techniques, since the former technique is quite simple and effective, and the latter technique does not cause any signal distortion. We provide the structure and the systematic operating method, and show the various analyzes to derive the EE gain based on the combined technique. Our analysis show that the combined technique increases the EE by 69% compared to no PAPR reduction, and by 19.34% compared to only using SLM technique. PMID- 29023590 TI - De novo assembly and analysis of the transcriptome of Rumex patientia L. during cold stress. AB - BACKGROUND: Rumex patientia L. is consumed as a green vegetable in several parts of the world, and can withstand extremely low temperatures (-35 degrees C). However, little or no available genomic data for this species has been reported to date. Here, we used Illumina Hiseq technology for transcriptome assembly in R. patientia under normal and cold conditions to evaluate how it responds to cold stress. RESULTS: After an in-depth RNA-Seq analysis, 115,589 unigenes were produced from the assembled transcripts. Based on similarity search analysis with seven databases, we obtained and annotated 60,157 assembled unigenes to at least one database. In total, 1,179 unigenes that were identified as differentially expressed genes (DEGs), including up-regulated (925) and down-regulated ones (254), were successfully assigned GO annotations and classified into three major metabolic pathways. Ribosome, carbon metabolism, oxidative phosphorylation and biosynthesis of amino acids were the most highly enriched pathways according to KEGG analysis. Overall, 66 up-regulated genes were identified as putatively involved in the response to cold stress, including members of MYB, AP2/ERF, CBF, Znf, bZIP, NAC and COR families. CONCLUSION: To our knowledge, this investigation was the first to provide a cold-responsive (COR) transcriptome assembly in R. patientia. A large number of potential COR genes were identified, suggesting that this species is suitable for cultivation in northern China. In summary, these data provide valuable information for future research and genomic studies in R. patientia. PMID- 29023593 TI - Correction: Ambiguity in the processing of Mandarin Chinese relative clauses: One factor cannot explain it all. AB - [This corrects the article DOI: 10.1371/journal.pone.0178369.]. PMID- 29023592 TI - Polymer-based precipitation preserves biological activities of extracellular vesicles from an endometrial cell line. AB - Extracellular vesicles (EVs) are membrane-bound vesicles released by cells and act as media for transfer of proteins, small RNAs and mRNAs to distant sites. They can be isolated by different methods. However, the biological activities of the purified EVs have seldom been studied. In this study, we compared the use of ultracentrifugation (UC), ultra-filtration (UF), polymer-based precipitation (PBP), and PBP with size-based purification (PBP+SP) for isolation of EVs from human endometrial cells and mouse uterine luminal fluid (ULF). Electron microscopy revealed that the diameters of the isolated EVs were similar among the tested methods. UF recovered the highest number of EVs followed by PBP, while UC and PBP+SP were significantly less efficient (P<0.05). Based on the number of EVs to-protein ratios, PBP had the least protein contamination, significantly better than the other methods (P<0.05). All the isolated EVs expressed exosome-enriched proteins CD63, TSG101 and HSP70. Incubation of the trophoblast JEG-3 cells with an equal amount of the fluorescence-labelled EVs isolated by the studied methods showed that many of the PBP-EVs treated cells were fluorescence positive but only a few cells were labelled in the UC- and UF-EVs treated groups. Moreover, the PBP EVs could transfer significantly more miRNA to the recipient cells than the other 3 methods (P<0.05). The PBP method could isolate EVs from mouse ULF; the diameter of the isolated EVs was 62+/-19 nm and expressed CD63, TSG101 and HSP70 proteins. In conclusion, PBP could best preserve the activities of the isolated EVs among the 4 methods studied and was able to isolate EVs from a small volume of sample. The simple setup and low equipment demands makes PBP the most suitable method for rapid EV assessment and isolation of EVs in clinical and basic research settings. PMID- 29023594 TI - First trimester medication abortion practice in the United States and Canada. AB - We conducted a cross-sectional survey of abortion facilities from professional networks in the United States (US, n = 703) and Canada (n = 94) to estimate the prevalence of medication abortion practices in these settings and to look at regional differences. Administrators responded to questions on gestational limits, while up to five clinicians per facility reported on 2012 medication abortion practice. At the time of fielding, mifepristone was not approved in Canada. 383 (54.5%) US and 78 (83.0%) Canadian facilities participated. In the US, 95.3% offered first trimester medication abortion compared to 25.6% in Canada. While 100% of providers were physicians in Canada, just under half (49.4%) were advanced practice clinicians in the US, which was more common in Eastern and Western states. All Canadian providers used misoprostol; 85.3% with methotrexate. 91.4% of US providers used 200 mg of mifepristone and 800 mcg of misoprostol, with 96.7% reporting home misoprostol administration. More than three-quarters of providers in both countries required an in-person follow-up visit, generally with ultrasound. 87.7% of US providers routinely prescribed antibiotics compared to 26.2% in Canada. Nonsteroidal anti-inflammatory drugs were the most commonly reported analgesic, with regional variation in opioid narcotic prescription. In conclusion, medication abortion practice follows evidence-based guidelines in the US and Canada. Efforts to update practice based on the latest evidence for reducing in-person visits and increasing provision by advanced practice clinicians could strengthen these services and reduce barriers to access. Research is needed on optimal antibiotic and analgesic use. PMID- 29023596 TI - Correction: The carriage of interleukin-1B-31*C allele plus Staphylococcus aureus and Haemophilus influenzae increases the risk of recurrent tonsillitis in a Mexican population. AB - [This corrects the article DOI: 10.1371/journal.pone.0178115.]. PMID- 29023595 TI - Actinide bioimaging in tissues: Comparison of emulsion and solid track autoradiography techniques with the iQID camera. AB - This work presents a comparison of three autoradiography techniques for imaging biological samples contaminated with actinides: emulsion-based, plastic-based autoradiography and a quantitative digital technique, the iQID camera, based on the numerical analysis of light from a scintillator screen. In radiation toxicology it has been important to develop means of imaging actinide distribution in tissues as these radionuclides may be heterogeneously distributed within and between tissues after internal contamination. Actinide distribution determines which cells are exposed to alpha radiation and is thus potentially critical for assessing absorbed dose. The comparison was carried out by generating autoradiographs of the same biological samples contaminated with actinides with the three autoradiography techniques. These samples were cell preparations or tissue sections collected from animals contaminated with different physico-chemical forms of actinides. The autoradiograph characteristics and the performances of the techniques were evaluated and discussed mainly in terms of acquisition process, activity distribution patterns, spatial resolution and feasibility of activity quantification. The obtained autoradiographs presented similar actinide distribution at low magnification. Out of the three techniques, emulsion autoradiography is the only one to provide a highly-resolved image of the actinide distribution inherently superimposed on the biological sample. Emulsion autoradiography is hence best interpreted at higher magnifications. However, this technique is destructive for the biological sample. Both emulsion- and plastic-based autoradiography record alpha tracks and thus enabled the differentiation between ionized forms of actinides and oxide particles. This feature can help in the evaluation of decorporation therapy efficacy. The most recent technique, the iQID camera, presents several additional features: real-time imaging, separate imaging of alpha particles and gamma rays, and alpha activity quantification. The comparison of these three autoradiography techniques showed that they are complementary and the choice of the technique depends on the purpose of the imaging experiment. PMID- 29023597 TI - Discrete pre-processing step effects in registration-based pipelines, a preliminary volumetric study on T1-weighted images. AB - Pre-processing MRI scans prior to performing volumetric analyses is common practice in MRI studies. As pre-processing steps adjust the voxel intensities, the space in which the scan exists, and the amount of data in the scan, it is possible that the steps have an effect on the volumetric output. To date, studies have compared between and not within pipelines, and so the impact of each step is unknown. This study aims to quantify the effects of pre-processing steps on volumetric measures in T1-weighted scans within a single pipeline. It was our hypothesis that pre-processing steps would significantly impact ROI volume estimations. One hundred fifteen participants from the OASIS dataset were used, where each participant contributed three scans. All scans were then pre-processed using a step-wise pipeline. Bilateral hippocampus, putamen, and middle temporal gyrus volume estimations were assessed following each successive step, and all data were processed by the same pipeline 5 times. Repeated-measures analyses tested for a main effects of pipeline step, scan-rescan (for MRI scanner consistency) and repeated pipeline runs (for algorithmic consistency). A main effect of pipeline step was detected, and interestingly an interaction between pipeline step and ROI exists. No effect for either scan-rescan or repeated pipeline run was detected. We then supply a correction for noise in the data resulting from pre-processing. PMID- 29023598 TI - The Greenland shark Somniosus microcephalus-Hemoglobins and ligand-binding properties. AB - A large amount of data is currently available on the adaptive mechanisms of polar bony fish hemoglobins, but structural information on those of cartilaginous species is scarce. This study presents the first characterisation of the hemoglobin system of one of the longest-living vertebrate species (392 +/- 120 years), the Arctic shark Somniosus microcephalus. Three major hemoglobins are found in its red blood cells and are made of two copies of the same alpha globin combined with two copies of three very similar beta subunits. The three hemoglobins show very similar oxygenation and carbonylation properties, which are unaffected by urea, a very important compound in marine elasmobranch physiology. They display identical electronic absorption and resonance Raman spectra, indicating that their heme-pocket structures are identical or highly similar. The quaternary transition equilibrium between the relaxed (R) and the tense (T) states is more dependent on physiological allosteric effectors than in human hemoglobin, as also demonstrated in polar teleost hemoglobins. Similar to other cartilaginous fishes, we found no evidence for functional differentiation among the three isoforms. The very similar ligand-binding properties suggest that regulatory control of O2 transport may be at the cellular level and that it may involve changes in the cellular concentrations of allosteric effectors and/or variations of other systemic factors. The hemoglobins of this polar shark have evolved adaptive decreases in O2 affinity in comparison to temperate sharks. PMID- 29023599 TI - TCR-independent functions of Th17 cells mediated by the synergistic actions of cytokines of the IL-12 and IL-1 families. AB - The development of Th17 cells is accompanied by the acquisition of responsiveness to both IL-12 and IL-23, cytokines with established roles in the development and/or function of Th1 and Th17 cells, respectively. IL-12 signaling promotes antigen-dependent Th1 differentiation but, in combination with IL-18, allows the antigen-independent perpetuation of Th1 responses. On the other hand, while IL-23 is dispensable for initial commitment to the Th17 lineage, it promotes the pathogenic function of the Th17 cells. In this study, we have examined the overlap between Th1 and Th17 cells in their responsiveness to common pro inflammatory cytokines and how this affects the antigen-independent cytokine responses of Th17 cells. We found that in addition to the IL-1 receptor, developing Th17 cells also up-regulate the IL-18 receptor. Consequently, in the presence of IL-1beta or IL-18, and in the absence of TCR activation, Th17 cells produce Th17 lineage cytokines in a STAT3-dependent manner when stimulated with IL-23, and IFN(c) via a STAT4-dependent mechanism when stimulated with IL-12. Thus, building on previous findings of antigen-induced plasticity of Th17 cells, our results indicate that this potential of Th17 cells extends to their cytokine dependent antigen-independent responses. Collectively, our data suggest a model whereby signaling via either IL-1beta or IL-18 allows for bystander responses of Th17 cells to pathogens or pathogen products that differentially activate innate cell production of IL-12 or IL-23. PMID- 29023600 TI - Reduced accumulation of defective viral genomes contributes to severe outcome in influenza virus infected patients. AB - Influenza A virus (IAV) infection can be severe or even lethal in toddlers, the elderly and patients with certain medical conditions. Infection of apparently healthy individuals nonetheless accounts for many severe disease cases and deaths, suggesting that viruses with increased pathogenicity co-circulate with pandemic or epidemic viruses. Looking for potential virulence factors, we have identified a polymerase PA D529N mutation detected in a fatal IAV case, whose introduction into two different recombinant virus backbones, led to reduced defective viral genomes (DVGs) production. This mutation conferred low induction of antiviral response in infected cells and increased pathogenesis in mice. To analyze the association between low DVGs production and pathogenesis in humans, we performed a genomic analysis of viruses isolated from a cohort of previously healthy individuals who suffered highly severe IAV infection requiring admission to Intensive Care Unit and patients with fatal outcome who additionally showed underlying medical conditions. These viruses were compared with those isolated from a cohort of mild IAV patients. Viruses with fewer DVGs accumulation were observed in patients with highly severe/fatal outcome than in those with mild disease, suggesting that low DVGs abundance constitutes a new virulence pathogenic marker in humans. PMID- 29023603 TI - Correction: Does a presentation's medium affect its message? PowerPoint, Prezi, and oral presentations. AB - [This corrects the article DOI: 10.1371/journal.pone.0178774.]. PMID- 29023602 TI - Trace metal release after minimally-invasive repair of pectus excavatum. AB - BACKGROUND: Several studies have shown a high incidence of metal allergy after minimally-invasive repair of pectus excavatum (MIRPE). We postulated that MIRPE is associated with a significant release of trace metal ions, possibly causing the allergic symptoms. METHODS: We evaluated the concentration with chromium, cobalt and nickel in blood, urine and tissue in patients prior to MIRPE and in patients who underwent an explantation of the stainless-steel bar(s) after three years. RESULTS: Our study group consisted of 20 patients (mean age 19 years) who had bar explantation and our control group included 20 patients (mean age 16 years) prior to MIRPE. At the time of bar removal we detected significantly elevated concentrations of chromium and nickel in the tissue compared to patients prior to the procedure (p<0,001). We also found a significant increase in the levels of chromium in urine and nickel in blood in patients three years post MIRPE (p<0,001). Four patients temporarily developed symptoms of metal allergy, all had elevated metal values in blood and urine at explantation. CONCLUSIONS: Minimally-invasive repair of pectus excavatum can lead to a significant trace metal exposure. PMID- 29023604 TI - Correction: Targeted high throughput sequencing in hereditary ataxia and spastic paraplegia. AB - [This corrects the article DOI: 10.1371/journal.pone.0174667.]. PMID- 29023601 TI - Adenovirus vector-based multi-epitope vaccine provides partial protection against H5, H7, and H9 avian influenza viruses. AB - The emergence of H5, H7, and H9 avian influenza virus subtypes in humans reveals their pandemic potential. Although human-to-human transmission has been limited, the genetic reassortment of the avian and human/porcine influenza viruses or mutations in some of the genes resulting in virus replication in the upper respiratory tract of humans could generate novel pandemic influenza viruses. Current vaccines do not provide cross protection against antigenically distinct strains of the H5, H7, and H9 influenza viruses. Therefore, newer vaccine approaches are needed to overcome these potential threats. We developed an egg independent, adenovirus vector-based, multi-epitope (ME) vaccine approach using the relatively conserved immunogenic domains of the H5N1 influenza virus [M2 ectodomain (M2e), hemagglutinin (HA) fusion domain (HFD), T-cell epitope of nucleoprotein (TNP). and HA alpha-helix domain (HalphaD)]. Our ME vaccine induced humoral and cell-mediated immune responses and caused a significant reduction in the viral loads in the lungs of vaccinated mice that were challenged with antigenically distinct H5, H7, or H9 avian influenza viruses. These results suggest that our ME vaccine approach provided broad protection against the avian influenza viruses. Further improvement of this vaccine will lead to a pre pandemic vaccine that may lower morbidity, hinder transmission, and prevent mortality in a pandemic situation before a strain-matched vaccine becomes available. PMID- 29023606 TI - Efficacy of Er:YAG Laser in the Decontamination of Peri-implant Disease: A One Year Prospective Closed Cohort Study. AB - A significant number of articles have been published to describe a variety of techniques for the treatment of peri-implant disease, with varying success. Previous reports have presented limited data on the use of lasers for the decontamination of implant surfaces prior to defect augmentation using guided bone regeneration techniques. The current study is a prospective closed cohort study of 20 patients with a follow-up of 1 year. It was established to assess the efficacy of the Er:YAG water-cooled laser following initially promising reports suggesting the laser can decontaminate and sterilize the implant surface and allow for reosseointegration of the affected portion of the implant. PMID- 29023605 TI - Involvement of the Arg566 residue of Aeromonas sobria serine protease in substrate specificity. AB - Aeromonas sobria serine protease (ASP) is an extracellular serine protease secreted by the organism. Here, we identified the amino acid residue of ASP that contributes to substrate specificity by using both synthetic peptides and biological protein components. The results showed that the arginine residue at position 566 (Arg-566) of ASP, which is located in the extra occluding region of ASP close to an entrance of the catalytic cavity, is involved in the substrate specificity. A substitutional point mutation of the Arg-566 residue of ASP to Ala residue (ASP[R566A]) caused a decrease of the proteolytic efficiency for a certain substrate. In addition, ASP lost the ability to recognize the primary substrate by such a point mutation, and ASP[R566A] reacted to a wide range of synthetic substrates. It is likely that Arg-566 causes an interaction with the amino acid residue at position P3 of the substrate, which is the third amino acid residue upstream from the cleavage site. Another study using ORF2 protein, a chaperone protein of ASP, further suggested that Arg-566 could also play an important role in interaction with ORF2. We therefore conclude that the Arg-566 residue of ASP is likely responsible for the selection of substrates. PMID- 29023607 TI - Immediate Palatal Molar Implants: A Simple, Safe, Minimally Invasive Technique. AB - The purpose of this study was to determine whether a single immediate implant placed into the postextraction palatal socket of a maxillary molar would be as efficacious as a single implant placed centrally in a staged approach. A total of 61 immediate implants were placed in 52 patients and restored after 6 months. Periotest and Osstell were used to determine implant stability, and cone beam computed tomography was used for marginal bone level assessment. During the 2 year follow-up, implant survival was 100%. It was concluded that immediate palatal implants can safely restore extracted molars in the maxilla. PMID- 29023608 TI - A Retrospective Periodontal Assessment of 137 Teeth After Featheredge Preparation and Gingittage. AB - The aim of this study was to retrospectively evaluate the periodontal response of periodontally healthy teeth prosthetically restored using a featheredge finish line preparation combined with a light rotary curettage (gingittage). A total of 137 restored teeth were included in the study. Mean follow-up time was 18.2 months (range: 6 to 60 months). Bleeding on probing was noted in 18% of cases, while the Plaque Index was found to be 11%. The probing depth in 99.4% of cases was <= 3 mm. In only 7 cases (5.1%), a slight restoration margin exposure was recorded. Although randomized controlled studies with longer follow-up are advocated, the present investigation seems to suggest that this protocol is a viable procedure. PMID- 29023609 TI - Thickness of the Buccal Plate in Posterior Teeth: A Prospective Cone Beam Computed Tomography Study. AB - Buccal plate thickness is an important clinical parameter for postextraction implant treatment planning. The purpose of this study was to assess buccal plate thickness of the posterior maxilla and mandible using cone beam computed tomography (CBCT). A total of 265 patients and 934 teeth met the inclusion criteria for this study. CBCT volumes were taken and aligned for measurement at the ideal midsagittal cross-section. Buccal plate thickness was measured at 1, 3, and 5 mm apical to the alveolar crest. The frequency of thick (>= 1 mm), thin (< 1 mm), and radiographic absence of the buccal plate were determined. The frequency of thin buccal plate decreases from anterior to posterior, with first premolars and first molar mesial roots most affected. Radiographic absence of the buccal plate was more common in the mandible, at first premolars, and among women. Thin and absent buccal plate are not uncommon in the posterior jaws; consequently, ridge preservation may be indicated even at posterior teeth. PMID- 29023610 TI - The Management of Peri-implant Mucosa Deficiencies in Esthetic Sites: Case Report of a Combined Surgical-Prosthetic Approach. AB - In cases of single missing teeth, implant rehabilitation is generally the preferred treatment option. However, obtaining pleasing esthetic results in the anterior maxillary region and maintaining or rebuilding peri-implant papillae remain challenging tasks. The loss of papillae may cause not just functional but also phonetic and esthetic problems. There is scarce information on the reliability of surgical approaches concerning the peri-implant papilla. The purpose of this case report is to present a modified prosthetic-surgical technique to enhance the convex facial contour of the peri-implant mucosa and volume and height of papillary tissue in an esthetically highly demanding patient. PMID- 29023611 TI - Adjunctive Effect of Autologous Platelet-Rich Fibrin in the Treatment of Intrabony Defects in Localized Aggressive Periodontitis Patients: A Randomized Controlled Split-Mouth Clinical Trial. AB - The aim of this study was to investigate the clinical and radiologic efficacy of autologous platelet-rich fibrin (PRF) in the treatment of intrabony defects associated with localized aggressive periodontitis (LAP). A total of 30 sites, 2 sites per individual in 15 LAP patients, were treated with modified flap operation (MFO; Kirkland flap) alone or combined with autologous PRF. The study variables included plaque index, sulcus bleeding index, probing depth (PD), clinical attachment level (CAL), and gingival marginal level at baseline and 12 months postoperatively. The radiographic bone fill (RBF) on standardized radiographs was assessed after a year using image analysis software. The improvements in PD, CAL, and RBF in test sites compared to control sites were statistically significant (P < .05). Mean CAL gain and bone fill in the test sites were 4.0 +/- 0.63 mm and 3.09 mm, respectively. Almost 80% of the PRF treated sites showed >= 50% bone fill with minimal marginal tissue recession. Use of PRF significantly enhances the clinical and radiographic outcomes of open flap debridement in the treatment of periodontal intraosseous defects in patients affected by LAP. PMID- 29023612 TI - A Minimally Invasive Approach Using a 4-mm Implant Without Extraction of Impacted Maxillary Canine: Four-Year Postloading Results. AB - The aim of this case report was to suggest an alternative minimally invasive surgical approach to an impacted maxillary canine using a 4-mm-long implant for a fixed prosthetic rehabilitation, avoiding tooth extraction or surgically forced extrusion and exploiting the 6 mm of coronal bone availability. At 4 years postloading, the implant was healthy and well integrated with stable marginal bone levels. The 4-mm length of the implant reduced operative times, postsurgical morbidity, possible complications, and costs. Short implants might be an alternative to traditional, more invasive surgical procedures used in the rehabilitative treatment of impacted maxillary canines. PMID- 29023614 TI - Virtual Simulation of Periodontal Surgery Including Presurgical CAD/CAM Fabrication of Tooth-Colored Removable Splints on the Basis of CBCT Data: A Case Report. AB - Innovative digital diagnostic, design, and manufacturing technologies combined with high-performance polymers offer new possibilities to facilitate complex interdisciplinary treatment procedures. This article reports on the interaction of different digital technologies, from presurgical digital simulation of periodontal surgery to final prosthodontic rehabilitation, in a case of amelogenesis imperfecta in a 17-year-old girl. The aim was to digitally determine the treatment outcome by three-dimensional simulation of the soft tissue removal and to create computer-aided design/computer-assisted manufacture tooth-colored splints before the clinical treatment. The case report shows the synergy of the combination of multiple digital technologies for a predictable periodontal and prosthetic treatment outcome. PMID- 29023613 TI - Comparative Study of rhPDGF-BB Plus Equine-Derived Bone Matrix Versus rhPDGF-BB Plus beta-TCP in the Treatment of Periodontal Defects. AB - The purpose of this study was to evaluate the efficacy and safety of equine derived bone matrix as a carrier for recombinant human platelet-derived growth factor BB (rhPDGF-BB) versus beta-tricalcium phosphate (beta-TCP) for the treatment of intraosseous periodontal defects in adult patients. This study was performed on 32 adults with advanced periodontal disease. Eligible subjects were randomized in 1:1 ratio into a test (rhPDGF-BB-coated equine-derived bone matrix) or control group (rhPDGF-BB-coated beta-TCP). Probing pocket depth (PD), clinical attachment level (CAL), gingival recession (GR), and defect depth on radiographs were measured at 2 weeks before surgery, on the day of surgery (DOS), and 6 months postsurgery (6MPS). The clinical and radiographic data were analyzed over the test period. Statistically significant PD reductions and CAL gain between baseline and 6MPS and between ODS and 6MPS were seen in both groups (P < .01). No statistically significant differences in PD reduction were found between groups. However, the test group showed significant CAL gain between DOS and 6MPS. The radiographic bone level change was statistically significant compared to baseline (P < .01) in both groups. The results suggested that equine-derived bone matrix is a viable, effective, and safe carrier scaffold for rhPDGF in periodontal defects. PMID- 29023615 TI - The Lip-Tooth-Ridge Classification: A Guidepost for Edentulous Maxillary Arches. Diagnosis, Risk Assessment, and Implant Treatment Indications. AB - Prosthetic rehabilitation of the edentulous maxilla is known to be challenging and requires meticulous planning. The purpose of this article is to describe a novel classification system, the Lip-Tooth-Ridge (LTR), that offers a guidepost for treatment planning the edentulous maxilla for fixed or removable prostheses. This tool will help clinicians identify the final prosthetic design and will provide a case-specific risk assessment guide regarding two different areas. A high (HER) or low (LER) esthetic risk will be determined based on lip dynamics, as well as a high or low structural risk according to the prosthetic space availability. PMID- 29023616 TI - Clinical and Patient-Centered Outcomes Following Treatment of Multiple Gingival Recessions Using Acellular Dermal Matrix Allografts. AB - The aim of this case series was to evaluate clinical and patient-centered outcomes when treating multiple recessions (Miller Class I, II, and III) affecting five or more teeth in a single procedure using acellular dermal matrix in 18 eligible participants (mean of 7.4 +/- 1.7 recessions/patient). Low mean visual analog scale pain scores (0.7 +/- 0.8) and analgesic consumption (2.3 +/- 2.5 tablets) were reported from days 0 to 6 postoperatively. Mean baseline recession depth was 2.1 +/- 1 mm. At 1 year postsurgery, mean percent root coverage was 87.1% +/- 18.3%, and complete root coverage was achieved in 61.7% of recessions with statistically significant differences between smokers and nonsmokers. PMID- 29023617 TI - Socket Shield Technique for Implant Placement in the Esthetic Zone: A Case Report. AB - Improvements in implant design, placement protocols, and sequences for reconstruction in the anterior region have enabled clinicians to provide their patients with esthetically acceptable results. Yet from a clinical standpoint, the predictable preservation of the peri-implant soft tissue remains challenging and tissue grafting is often necessary to compensate for ridge contour changes in postextraction sites. In animal and clinical studies, the socket shield technique has shown its potential to prevent resorption of buccal tissues. This 24-month follow-up case report presents a 47-year-old patient with a failing maxillary incisor replaced with an immediately placed single implant in conjunction with the socket shield technique. PMID- 29023618 TI - Reconstruction of Atrophied Posterior Mandible with an Inlay Technique and Allograft Block: Technical Description and Histologic Case Reports. AB - This paper presents a technical description of the inlay technique performed with an allograft block in the reconstruction of a severely atrophic posterior mandible. It includes a histologic case series of five patients treated with the same grafting procedure and rehabilitated with dental implants 2 months after placement of the graft. The histologic analysis showed large amounts of newly formed bone in tight connection with the allograft and large marrow spaces with intense cellular activity and the presence of osteocytes. Allografts might serve as an alternative to autogenous and heterologous grafting in posterior mandible augmentation using the inlay technique. PMID- 29023619 TI - The Sinus Membrane-Maxillary Lateral Wall Complex: Histologic Description and Clinical Implications for Maxillary Sinus Floor Elevation. AB - Maxillary sinus floor elevation has been documented as a safe and predictable procedure for gaining vertical bone height in the atrophic posterior maxillae. Conversely, there is a lack of basic research on the characteristics of the union between the sinus membrane (SM) and the bone. Clinical implications of an impaired union in healthy or pathologic membranes remain unknown. The objective of this study was to present a comprehensive histologic and morphologic description of the sinus membrane-lateral bone wall complex. In 14 fresh cadaver heads, 28 lateral wall sinus augmentation procedures were performed to obtain SM samples. Samples were assessed using hematoxylin-eosin, Masson trichrome, and toluidine blue staining and immunofluorescence and immunohistochemistry procedures. Specimens were coded and studied by a trained examiner using an optical microscope at *4, *10, *40, and *100 objectives. Thickness and inflammation status were assessed in these samples. Overall SM thickness of the samples was 0.40 +/- 0.12 mm and was positively correlated to the inflammatory condition of the membranes. Such low values are the consequence of limited inflammation. Most of the fibers and cells in the deeper layers of the SM ran in a horizontal direction, oriented parallel to the underlying bone wall. In the immunohistochemistry study, 3 out of 7 samples showed a certain degree of nestin expression, suggesting osteogenic potential in spite of the elderly specimens. Large variations in thickness across the SM were found. These were noted to be partially correlated to the SM inflammatory status. The vast majority of the fibers were oriented parallel to the maxillary lateral wall, and only a few isolated areas showed a stronger perpendicular attachment. This might indicate the surpassing importance of the SM inflammatory status, operator skill, and other anatomical factors over the sinus membrane-maxillary lateral wall complex interface. Moreover, about half of the SM investigated were positive for nestin, indicating their osteogenic potential. PMID- 29023620 TI - Analysis of Morphologic Attributes in Dental Esthetics: A New Concept. AB - An interdisciplinary approach to esthetics requires a comprehensive treatment plan formulated through evaluation of several restorative and periodontal parameters that influence the esthetic zone. A total of 25 subjects (13 women and 12 men, with an age range of 18 to 23 years) participated in the study. Parameters such as gingival biotype on the labial aspect, crown width to crown length ratio, and interdental papilla proportion, with respect to the maxillary anterior teeth, were determined. An attempt was made to establish a correlation between these components, and a positive correlation was found. A careful preoperative diagnosis of these parameters is thus essential, especially in the esthetic zone. PMID- 29023621 TI - Bond Strength of Self-Adhering Materials: Effect of Dentin-Desensitizing Treatment with a CPP-ACP Paste. AB - This study investigated the effect of dentin-desensitizing treatment with a casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) paste on shear bond strength (SBS) of two types of self-adhering (SA) restorative materials: resin modified glass-ionomer (Fuji II LC, GC) and self-adhering flowable composite resin (Vertise Flow, Kerr). Flat and smear layer-free dentin surfaces from 48 extracted molars were prepared and divided into four groups (n = 12 per group) according to Fuji II LC or Vertise Flow and CPP-ACP pretreatment or not. After SBS testing, data were statistically analyzed. The adhesive interfaces were examined by scanning electron microscopy. SBS was significantly affected by CPP ACP treatment (P < .001) and SA material (P < .05). The interaction of the two factors was not significant. The results suggested that the CPP-ACP pretreatment of the exposed dentin could have a beneficial effect on bonding ability and interfacial integrity of both SA materials so that intimately adapted interfaces were observed in CPP-ACP groups. PMID- 29023622 TI - Osseous Healing Around Immediate Implants Placed Using Contour Augmentation: A Prospective Case Series. AB - The purpose of this study was to prospectively evaluate the dimensional bone changes around implants placed immediately with buccal contour augmentation. Patients with hopeless maxillary anterior teeth were treated with extraction, immediate implant placement, and simultaneous buccal contour augmentation. Hard tissue measurements were recorded at the time of implant placement and after 3 months of healing. All implants (N = 18) successfully osseointegrated with a mean buccal bone thickness of 2.94 +/- 0.21 mm (mean +/- SE) at the implant platform. This was significantly greater compared to previous data on immediate implants placed without contour augmentation (2.32 +/- 0.17 mm). Buccal contour augmentation in conjunction with immediate implant placement significantly increased peri-implant buccal bone thickness after 3 months of healing. PMID- 29023623 TI - Vertical Guided Bone Regeneration for a Single Missing Tooth Span with Titanium Reinforced d-PTFE Membranes: Clinical Considerations and Observations of 10 Consecutive Cases with up to 36 Months Follow-up. AB - Vertical guided bone regeneration (GBR) using titanium-reinforced polytetrafluoroethylene (PTFE) membranes is a well-established technique and is considered technique sensitive. When using PTFE membranes, complications usually arise in the crestal incision or next to the neighboring tooth of the treated span. Most studies available describe either distal free end or multiple missing teeth span situations. Treating a single missing tooth span combines the challenge of two neighboring teeth and a smaller flap, which is more difficult to adapt to the augmented environment. This article describes 10 single span cases treated with vertical GBR using high-density PTFE membranes, highlighting clinical guidelines for preoperative care, flap design, and suturing. PMID- 29023624 TI - Two-Year Clinical Evaluation of Pedicled Buccal Fat Pad Alone and with Emdogain for Root Coverage of Severe Gingival Recession Defects: A Case Series. AB - Gingival recession is defined as an apical displacement of the gingival margin beyond the cementoenamel junction leading to serious consequences, including exposure of the root surface, loss of periodontal attachment, root sensitivity to hot and cold air, and esthetic problems. The aim of this study was to evaluate the long-term effect of pedicled buccal fat pad (PBFP) alone and with Emdogain in covering severe gingival recession defects and restoring tooth function. A total of 10 severe buccal recession defects in maxillary first molars were selected to be treated with PBFP, with Emdogain (group I; n = 5) or alone (group II; n = 5). Probing depth, clinical attachment level, depth of the gingival recession, width of the keratinized gingiva, and tooth mobility were recorded and statistically analyzed at baseline and during follow-up recalls until 2 years postoperatively. At 2 years, the percentage of root coverage was 60.18% and 59.07% for group I and group II, respectively, with significant differences compared to baseline and all follow-up times for each group but with statistically significant differences between groups (P > .05). Emdogain with PBFP did not show significant improvement compared to PBFP alone in terms of root coverage percentage. PBFP alone may be the better treatment for severe gingival recession defects. PMID- 29023627 TI - Falls and disability among female cancer survivors. PMID- 29023625 TI - Readily Identifiable Risk Factors of Nursing Home Residents' Oral Hygiene: Dementia, Hospice, and Length of Stay. AB - BACKGROUND/OBJECTIVES: The poor oral hygiene of nursing home (NH) residents is a matter of increasing concern, especially because of its relationship with pneumonia and other health events. Because details and related risk factors in this area are scant and providers need to be able to easily identify those residents at most risk, this study comprehensively examined the plaque, gingival, and denture status of NH residents, as well as readily available correlates of those indicators of oral hygiene, including items from the Minimum Data Set (MDS). DESIGN: Oral hygiene assessment and chart abstract conducted on a cross section of NH residents. SETTING: NHs in North Carolina (N = 14). PARTICIPANTS: NH residents (N = 506). MEASUREMENTS: Descriptive data from the MDS and assessments using three standardized measures: the Plaque Index for Long-Term Care (PI-LTC), the Gingival Index for Long-Term Care (GI-LTC), and the Denture Plaque Index (DPI). RESULTS: Oral hygiene scores averaged 1.7 (of 3) for the PI LTC, 1.5 (of 4) for the GI-LTC, and 2.2 (of 4) for the DPI. Factors most strongly associated with poor oral hygiene scores included having dementia, being on hospice care, and longer stay. MDS ratings of gingivitis differed significantly from oral hygiene assessments. CONCLUSIONS: The findings identify resident subgroups at especially high risk of poor oral health who can be targeted in quality improvement efforts related to oral hygiene; they also indicate need to improve the accuracy of how MDS items are completed. PMID- 29023626 TI - Bayesian variable selection for multistate Markov models with interval-censored data in an ecological momentary assessment study of smoking cessation. AB - The application of sophisticated analytical methods to intensive longitudinal data, collected with ecological momentary assessments (EMA), has helped researchers better understand smoking behaviors after a quit attempt. Unfortunately, the wealth of information captured with EMAs is typically underutilized in practice. Thus, novel methods are needed to extract this information in exploratory research studies. One of the main objectives of intensive longitudinal data analysis is identifying relations between risk factors and outcomes of interest. Our goal is to develop and apply expectation maximization variable selection for Bayesian multistate Markov models with interval-censored data to generate new insights into the relation between potential risk factors and transitions between smoking states. Through simulation, we demonstrate the effectiveness of our method in identifying associated risk factors and its ability to outperform the LASSO in a special case. Additionally, we use the expectation conditional-maximization algorithm to simplify estimation, a deterministic annealing variant to reduce the algorithm's dependence on starting values, and Louis's method to estimate unknown parameter uncertainty. We then apply our method to intensive longitudinal data collected with EMA to identify risk factors associated with transitions between smoking states after a quit attempt in a cohort of socioeconomically disadvantaged smokers who were interested in quitting. PMID- 29023629 TI - Gastric decompression before laparoscopic entry via Palmer's point. PMID- 29023628 TI - Ethnic derivation of the Ainu inferred from ancient mitochondrial DNA data. AB - OBJECTIVES: The Ainu, the indigenous people living on the northernmost island of Japan, Hokkaido, have long been a focus of anthropological interest because of their cultural, linguistic, and physical identity. A major problem with genetic studies on the Ainu is that the previously published data stemmed almost exclusively from only 51 modern-day individuals living in Biratori Town, central Hokkaido. To clarify the actual genetic characteristics of the Ainu, individuals who are less influenced by mainland Japanese, who started large-scale immigration into Hokkaido about 150 years ago, should be examined. Moreover, the samples should be collected from all over Hokkaido. MATERIALS AND METHODS: Mitochondrial DNA haplogroups of 94 Ainu individuals from the Edo era were successfully determined by analyzing haplogroup-defining polymorphisms in the hypervariable and coding regions. Thereafter, their frequencies were compared to those of other populations. RESULTS: Our findings indicate that the Ainu still retain the matrilineage of the Hokkaido Jomon people. However, the Siberian influence on this population is far greater than previously recognized. Moreover, the influence of mainland Japanese is evident, especially in the southwestern part of Hokkaido that is adjacent to Honshu, the main island of Japan. DISCUSSION: Our results suggest that the Ainu were formed from the Hokkaido Jomon people, but subsequently underwent considerable admixture with adjacent populations. The present study strongly recommends revision of the widely accepted dual-structure model for the population history of the Japanese, in which the Ainu are assumed to be the direct descendants of the Jomon people. PMID- 29023630 TI - The HMGB1 is increased in CSF of patients with an Anti-NMDAR encephalitis. AB - BACKGROUND: Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is an autoimmune disorder of the central nervous system (CNS). Interleukin (IL)-6 and IL-17A may play important roles in the pathogenesis of this disease. High mobility group box protein 1 (HMGB1), a small but highly conserved ubiquitous protein, is recognized to be a potent innate inflammatory mediator that can activate the nuclear factor light chain enhancer of activated B cells and release cytokines such as IL-6 and IL-17A when released extracellularly. However, whether cerebrospinal fluid (CSF) HMGB1 levels are altered in anti-NMDAR encephalitis is still unclear. OBJECTIVE: The aim of this study was to determine whether a correlation exists between the CSF concentrations of HMGB1 and IL-6 and IL-17A in anti-NMDAR encephalitis patients. We also sought to assess whether HMGB1 influences the clinical outcomes in anti-NMDAR encephalitis patients. METHODS: Thirty-three patients with anti-NMDAR antibodies and 38 controls were recruited. CSF HMGB1 was measured using an enzyme-linked immunosorbent assay. The main clinical outcomes were evaluated using the modified Rankin scale (mRS). The data were extracted using microarray analysis software. RESULTS AND CONCLUSION: Our results showed significant increases in CSF HMGB1, IL-6, and IL-17A (P < .05) in anti-NMDAR encephalitis patients. But between 3 months' mRS scores in anti-NMDAR encephalitis patients and CSF data, there was no correlation. Our study suggests that HMGB1 CSF levels are increased in patients with anti-NMDAR encephalitis and reflect the underlying neuroinflammatory process. PMID- 29023631 TI - Population-based study of factors predicting treatment intention in patients with locally recurrent rectal cancer. AB - BACKGROUND: Local recurrence of rectal cancer (LRRC) is associated with poor survival unless curative treatment is performed. The aim of this study was to investigate predictive factors for treatment with curative intent in patients with LRRC. METHODS: Population-based data for patients treated for primary rectal cancer between 1995 and 2002, and with LRRC reported as first event were collected from the Swedish Colorectal Cancer Registry and medical records. The associations between patient-, primary tumour- and LRRC-related factors and intention of the treatment for LRRC were determined. The impact of the identified predictive factors on prognosis after treatment with curative intent was also assessed. RESULTS: A total of 426 patients were included in the study, of whom 149 (35.0 per cent) received treatment with curative intent. Factors significantly associated with treatment of the LRRC with palliative intent were primary surgery with abdominoperineal resection (odds ratio (OR) 5.16, 95 per cent c.i. 2.97 to 8.97), age at diagnosis of LRRC at least 80 years (OR 4.82, 2.37 to 9.80), symptoms at diagnosis (OR 2.79, 1.56 to 5.01) and non-central location of the LRRC (OR 1.79, 1.15 to 2.79). The overall 5-year survival rate was 8.9 per cent for all patients and 23.1 per cent among those treated with curative intent. In patients treated with curative intent, factors associated with increased risk of death were age 80 years or more (hazard ratio (HR) 2.44, 95 per cent c.i. 1.55 to 3.86), presence of symptoms (HR 1.92, 1.20 to 3.05), non central tumour location (HR 1.51, 1.01 to 2.26) and presence of hydronephrosis (HR 2.02, 1.18 to 3.44). CONCLUSION: Non-central location of the LRRC, presence of symptoms and age at least 80 years at diagnosis of the LRRC were associated with treatment with palliative intent. PMID- 29023632 TI - Heterogeneous reciprocal graphical models. AB - We develop novel hierarchical reciprocal graphical models to infer gene networks from heterogeneous data. In the case of data that can be naturally divided into known groups, we propose to connect graphs by introducing a hierarchical prior across group-specific graphs, including a correlation on edge strengths across graphs. Thresholding priors are applied to induce sparsity of the estimated networks. In the case of unknown groups, we cluster subjects into subpopulations and jointly estimate cluster-specific gene networks, again using similar hierarchical priors across clusters. We illustrate the proposed approach by simulation studies and three applications with multiplatform genomic data for multiple cancers. PMID- 29023633 TI - BDNF and BMI effects on brain structures of bipolar offspring: results from the global mood and brain science initiative. AB - OBJECTIVE: To compare brain-derived neurotrophic factor (BDNF) levels between offspring of individuals with bipolar disorders (BD) and healthy controls (HCs) and investigate the effects of BDNF levels and body mass index (BMI) on brain structures. METHOD: Sixty-seven bipolar offspring and 45 HCs were included (ages 8-28). Structural images were acquired using 3.0 Tesla magnetic resonance imaging. Serum BDNF levels were measured using enzyme-linked immunosorbent assay. Multivariate and univariate analyses of covariance were conducted. RESULTS: Significantly higher BDNF levels were observed among bipolar offspring, relative to HCs (P > 0.025). Offspring status moderated the association between BDNF and BMI (F1 =4.636, P = 0.034). After adjustment for relevant covariates, there was a trend for a significant interaction of group and BDNF on neuroimaging parameters (Wilks'lambda F56,94 =1.463, P = 0.052), with significant effects on cerebellar white matter and superior and middle frontal regions. Brain volume and BDNF were positively correlated among HCs and negatively correlated among bipolar offspring. Interactions between BDNF and BMI on brain volumes were non significant among HCs (Wilks'lambda F28,2 =2.229, P = 0.357), but significant among bipolar offspring (Wilks'lambda F28,12 =2.899, P = 0.028). CONCLUSION: Offspring status and BMI moderate the association between BDNF levels and brain structures among bipolar offspring, underscoring BDNF regulation and overweight/obesity as key moderators of BD pathogenesis. PMID- 29023634 TI - Improved knowledge of and difficulties in palliative care among physicians during 2008 and 2015 in Japan: Association with a nationwide palliative care education program. AB - BACKGROUND: Palliative care education for health care professionals is a key element in improving access to quality palliative care. The Palliative Care Emphasis Program on Symptom Management and Assessment for Continuous Medical Education (PEACE) was designed to provide educational opportunities for all physicians in Japan. As of 2015, 57,764 physicians had completed it. The objective of this study was to estimate the effects of the program. METHODS: This study was an analysis of 2 nationwide observational studies from 2008 and 2015. We conducted 2 questionnaire surveys for representative samples of physicians. The measurements used were the Palliative Care Knowledge Test (range, 0-100) and the Palliative Care Difficulties Scale (range, 1-4). Comparisons were made with the unpaired Student t test and with a multivariate linear regression model using 2 cohorts and a propensity score-matched sample. RESULTS: This study analyzed a total of 48,487 physicians in 2008 and a total of 2720 physicians in 2015. Between 2008 and 2015, physicians' knowledge and difficulties significantly improved on the Palliative Care Knowledge Test with total scores of 68 and 78, respectively (P < .001; effect size, 0.40) and on the Palliative Care Difficulties Scale with total scores of 2.65 and 2.49, respectively (P < .001; effect size, 0.29). Propensity-score matching resulted in 619 untrained physicians matched to 619 trained physicians, and physicians who trained with the PEACE program had a higher knowledge score (74 vs 86; P < .001; effect size, 0.64) and a lower difficulties score (2.6 vs 2.3; P < .001; effect size, 0.42). CONCLUSIONS: Physicians' knowledge of and difficulties with palliative care improved on a national level. The PEACE program may have contributed to these improvements. Cancer 2018;124:626-35. (c) 2017 American Cancer Society. PMID- 29023635 TI - Intermittent gait disturbance in idiopathic normal pressure hydrocephalus. AB - OBJECTIVES: We identified intermittent gait disturbance (IGD) observed in the mild stage of idiopathic normal pressure hydrocephalus (iNPH). The first purpose of this study was to clarify the temporal gait profile of IGD during long distance gait. The second purpose was to confirm the difference in treatment effect after cerebrospinal fluid (CSF) shunting in patients with and without IGD. MATERIALS AND METHODS: Fourteen consecutive iNPH patients with mild gait disturbance with a timed up-and-go (TUG) of <20 seconds were prospectively enrolled in the study. All patients were asked "Do you experience gait difficulty after over five minutes of walking?" Seven "yes" patients formed the IGD group, and seven "no" patients formed the persistent gait disturbance (PGD) group. One day before and 7 days after CSF shunting, gait function was evaluated by the 6 minute walk test (6MWT) and TUG. RESULTS: Preoperatively, all patients in the IGD group demonstrated features of IGD during the 6MWT, characterized by a progressive pattern of decreased gait speed and step length with increased cadence and absence of leg pain. Post-operatively, these features of IGD improved in all patients. In the PGD group, preoperative walking did not significantly worsen during the 6MWT and did not significantly change 7 days after treatment. Improvement of gait symptoms 1 week after CSF shunting could be detected with 6MWT instead of TUG. CONCLUSIONS: Intermittent gait disturbance is not a rare symptom in mild stage of iNPH and may serve as an important clinical diagnostic marker for identifying mild iNPH patients. PMID- 29023636 TI - Revised Functional Capacity Index as a predictor of outcome following injury. AB - BACKGROUND: Assessment of functional outcomes in survivors of severe injury is an identified priority for trauma systems. The predictive Functional Capacity Index (pFCI) within the 2008 Abbreviated Injury Scale dictionary (pFCI08) offers a widely available tool for predicting functional outcomes without requiring long term follow-up. This study aimed to assess the 12-month functional outcome predictions of pFCI08 in a major trauma population, and to test the assumptions made by its developers to ensure population homogeneity. METHODS: Patients with major trauma from Victoria, Australia, were followed up using routine telephone interviews. Assessment of survivors 12 months after injury included the Glasgow Outcome Scale - Extended (GOS-E). kappa scores were used to measure agreement between pFCI08 and assessed GOS-E scores. RESULTS: Of 20 098 patients with severe injury, 12 417 had both pFCI08 and GOS-E scoring available at 12 months. The quadratic weighted kappa score across this population was 0.170; this increased to 0.244 in the subgroup of 1939 patients who met all pFCI assumptions. However, expanding the age range used in this group did not significantly affect kappa scores until patients over the age of 70 years were included. DISCUSSION: The pFCI08 has only a slight agreement with outcomes following major trauma. However, the age limits in the pFCI development assumptions are unnecessarily restrictive. The pFCI08 may be able to contribute to future systems predicting functional outcomes following severe injury, but is likely to explain only a small proportion of the variability in patient outcomes. PMID- 29023637 TI - AnthropMMD: An R package with a graphical user interface for the mean measure of divergence. AB - The mean measure of divergence is a dissimilarity measure between groups of individuals described by dichotomous variables. It is well suited to datasets with many missing values, and it is generally used to compute distance matrices and represent phenograms. Although often used in biological anthropology and archaeozoology, this method suffers from a lack of implementation in common statistical software. A package for the R statistical software, AnthropMMD, is presented here. Offering a dynamic graphical user interface, it is the first one dedicated to Smith's mean measure of divergence. The package also provides facilities for graphical representations and the crucial step of trait selection, so that the entire analysis can be performed through the graphical user interface. Its use is demonstrated using an artificial dataset, and the impact of trait selection is discussed. Finally, AnthropMMD is compared to three other free tools available for calculating the mean measure of divergence, and is proven to be consistent with them. PMID- 29023638 TI - The optimal regimen of brentuximab vedotin for CD30+ cutaneous lymphoma: are we there yet? PMID- 29023639 TI - An anatomical and mechanical analysis of the douc monkey (genus Pygathrix), and its role in understanding the evolution of brachiation. AB - OBJECTIVES: Pygathrix is an understudied Asian colobine unusual among the Old World monkeys for its use of arm-swinging. Little data exists on the anatomy and mechanics of brachiation in this genus. Here, we consider this colobine to gain insight into the parallel evolution of suspensory behavior in primates. MATERIALS AND METHODS: This study compares axial and appendicular morphological variables of Pygathrix with other Asian colobines. Additionally, to assess the functional consequences of Pygathrix limb anatomy, kinematic and kinetic data during arm swinging are included to compare the douc monkey to other suspensory primates (Ateles and Hylobates). RESULTS: Compared to more pronograde species, Pygathrix and Nasalis share morphology consistent with suspensory locomotion such as its narrower scapulae and elongated clavicles. More distally, Pygathrix displays a gracile humerus, radius, and ulna, and shorter olecranon process. During suspensory locomotion, Pygathrix, Ateles, and Hylobates all display mechanical convergence in limb loading and movements of the shoulder and elbow, but Pygathrix uses pronated wrist postures that include substantial radial deviation during arm-swinging. DISCUSSION: The adoption of arm-swinging represents a major shift within at least three anthropoid clades and little data exist about its transition. Across species, few mechanical differences are observed during arm swinging. Apparently, there are limited functional solutions to the challenges associated with moving bimanually below branches, especially in more proximal forelimb regions. Morphological data support this idea that the Pygathrix distal forelimb differs from apes more than its proximal end. These results can inform other studies of ape evolution, the pronograde to orthograde transition, and the convergent ways in which suspensory locomotion evolved in primates. PMID- 29023640 TI - Further consideration of the curvature of the Neandertal Femur. AB - OBJECTIVES: Neandertal femora are particularly known for having a marked sagittal femoral curvature. This study examined femoral curvature in Neandertals in comparison to a modern human population from Belgium by the use of three dimensional (3D) quadric surfaces modeled from the bone surface. 3D models provide detailed information and enabled femoral curvature to be analyzed in conjunction with other morphological parameters. MATERIALS AND METHODS: 3D models were created from CT scans of 75 modern human femora and 7 Neandertal femora. Quadric surfaces (QS) were created from the triangulated surface vertices in all areas of interest (neck, head, diaphyseal shaft, condyles) extracted from previously placed anatomical landmarks. The diaphyseal shaft was divided into five QS shapes and curvature was measured by degrees of difference between QS shapes. Each bone was placed in a local coordinate system enabling each bone to be analyzed in the same way. RESULTS: The use of 3D quadric surface fitting allowed the distribution of curvature with similarly curved femora to be analyzed and the different patterns of curvature between the two groups to be determined. The Neandertals were shown to have a higher degree of femoral curvature and a more distal point of femoral curvature than the modern human population from Belgium. CONCLUSIONS: Morphological aspects of the Neandertal femur are different from this modern human population although mainly seem unrelated to femoral curvature. The relative lack of correlations with other femoral bony morphological factors suggests femoral curvature variations may be related to other aspects. PMID- 29023641 TI - Comparison of injection-site reactions between the etanercept biosimilar SB4 and the reference etanercept in patients with rheumatoid arthritis from a phase III study. PMID- 29023642 TI - Hospital admission and surgical approach to tubal ectopic pregnancy in Australia 2000 to 2014: A population-based study. AB - BACKGROUND: There are several accepted approaches to management of ectopic pregnancy, both surgical and non-surgical. When a surgical approach is used, there appears to be an equipoise between tubal preservation and removal. We sought to determine the patterns of surgical management of ectopic pregnancy in Australia since the year 2000. MATERIALS AND METHODS: Data regarding hospital admissions for ectopic pregnancy were extracted from the Australian Institute of Health and Welfare national procedural dataset for the years 2000-2013. Surgical procedures were classified as open or laparoscopic, and involving salpingotomy or salpingectomy (tubal removal). The results were stratified into age bands. RESULTS: Over the study period hospital admission rates for ectopic pregnancy rose in women under the age of 30, without an increase in surgical procedures, while the rate of surgical procedures fell in women in older age groups. Rates of management of ectopic pregnancy via laparotomy fell in all age groups, as did rates of tubal preservation. CONCLUSION: Since the year 2000 there have been changes in the management of ectopic pregnancy, with significant reductions in open surgery and tubal preservation. PMID- 29023643 TI - Improved survival of patients with melanoma brain metastases in the era of targeted BRAF and immune checkpoint therapies. AB - BACKGROUND: The development of brain metastases is common for systemic treatment failure in patients with melanoma and has been associated with a poor prognosis. Recent advances with BRAF and immune checkpoint therapies have led to improved patient survival. Herein, the authors evaluated the risk of de novo brain metastases and survival among patients with melanoma brain metastases (MBM) since the introduction of more effective therapies. METHODS: Patients with unresectable AJCC stage III/IV melanoma who received first-line systemic therapy at Moffitt Cancer Center between 2000 and 2012 were identified. Data were collected regarding patient characteristics, stage of disease, systemic therapies, MBM status/management, and overall survival (OS). The risk of de novo MBM was calculated using a generalized estimating equation model and survival comparisons were performed using Kaplan-Meier and Cox proportional analyses. RESULTS: A total of 610 patients were included, 243 of whom were diagnosed with MBM (40%). Patients with MBM were younger, with a lower frequency of regional metastasis. No significant differences were noted with regard to sex, BRAF status, or therapeutic class. The risk of de novo MBM was found to be similar among patients treated with chemotherapy, biochemotherapy, BRAF-targeted therapy, ipilimumab, and anti-programmed cell death protein 1/programmed death-ligand 1 regimens. The median OS of patients with MBM was significantly shorter when determined from the time of first regional/distant metastasis but not when determined from the time of first systemic therapy. The median OS from the time of MBM diagnosis was 7.5 months, 8.5 months, and 22.7 months, respectively, for patients diagnosed from 2000 to 2008, 2009 to 2010, and 2011 to the time of last follow-up (P = .002). CONCLUSIONS: Brain metastases remain a common source of systemic treatment failure. The OS for patients with MBM has improved significantly. Further research into MBM prevention is needed. Cancer 2018;124:297-305. (c) 2017 American Cancer Society. PMID- 29023645 TI - Higher cigarette pricing encourages older smokers to quit. PMID- 29023646 TI - Erythrokeratoderma: a manifestation associated with multiple types of ichthyoses with different gene defects. PMID- 29023644 TI - A two-stage model for wearable device data. AB - Recent advances of wearable computing technology have allowed continuous health monitoring in large observational studies and clinical trials. Examples of data collected by wearable devices include minute-by-minute physical activity proxies measured by accelerometers or heart rate. The analysis of data generated by wearable devices has so far been quite limited to crude summaries, for example, the mean activity count over the day. To better utilize the full data and account for the dynamics of activity level in the time domain, we introduce a two-stage regression model for the minute-by-minute physical activity proxy data. The model allows for both time-varying parameters and time-invariant parameters, which helps capture both the transition dynamics between active/inactive periods (Stage 1) and the activity intensity dynamics during active periods (Stage 2). The approach extends methods developed for zero-inflated Poisson data to account for the high-dimensionality and time-dependence of the high density data generated by wearable devices. Methods are motivated by and applied to the Baltimore Longitudinal Study of Aging. PMID- 29023647 TI - Breast cancer risk associated with atypical hyperplasia and lobular carcinoma in situ initially diagnosed on core-needle biopsy. AB - BACKGROUND: Breast cancer risk estimates for atypical lesions are based primarily on case-control studies of patients with open biopsies. The authors report the cumulative breast cancer incidence after a core biopsy diagnosis of atypical hyperplasia (ductal or lobular) or lobular carcinoma in situ. METHODS: A cohort study with central pathology review was conducted on 393 patients who had core biopsy diagnoses of atypical hyperplasia and lobular carcinoma in situ from 1995 through 2010. Follow-up was available for 255 of 264 patients (97%) at a median of 87 months (range, 3-236 months). RESULTS: There were 212 patients (54%) who were not upgraded on excision and had no personal history of breast cancer. Of these, 21 of 212 (9.9%) developed breast cancer, including 15 invasive carcinomas, 4 ductal carcinomas in situ, 1 pleomorphic lobular carcinoma in situ, and 1 unknown type. The prior core biopsy diagnoses were atypical ductal hyperplasia for 11 patients (52%) and atypical lobular hyperplasia/lobular carcinoma in situ in the remaining 10 patients (48%). The number of atypical foci in the core biopsy was not significantly associated with the subsequent development of breast cancer (P = .42). Of the 15 invasive carcinomas, 11 (73%) were ipsilateral, 11 (73%) were pathologic T1 tumors, 5 (33%) were pathologic N1 tumors, 13 (87%) were estrogen receptor-positive, and 1 (7%) was amplified for human epidermal growth factor receptor 2. CONCLUSIONS: In patients who had an initial diagnosis of atypical hyperplasia or lobular carcinoma in situ on core biopsy, the 7-year cumulative breast cancer incidence was 9.9%. Most tumors were ipsilateral, stage I, estrogen receptor-positive, invasive carcinomas. The current data support close clinical and radiologic follow-up for more than 5 years in this patient population. Cancer 2018;124:459-65. (c) 2017 American Cancer Society. PMID- 29023650 TI - The Hand Assessment of Infants: a new tool to understand early hand function in children at high risk of unilateral cerebral palsy. PMID- 29023651 TI - Relations between the American Medical Association, the American Therapeutic Society, and the American Society for Clinical Pharmacology and Therapeutics. PMID- 29023648 TI - Improvements in hospice utilization among patients with advanced-stage lung cancer in an integrated health care system. AB - BACKGROUND: Hospice, a patient-centered care system for those with limited life expectancy, is important for enhancing quality of life and is understudied in integrated health care systems. METHODS: This was a retrospective cohort study of 21,860 decedents with advanced-stage lung cancer diagnosed from January 2007 to June 2013 in the national US Veterans Affairs Health Care System. Trends over time, geographic regional variability, and patient and tumor characteristics associated with hospice use and the timing of enrollment were examined. Multivariable logistic regression and Cox proportional hazards modeling were used. RESULTS: From 2007 to 2013, 70.3% of decedents with advanced-stage lung cancer were enrolled in hospice. Among patients in hospice, 52.9% were enrolled in the last month of life, and 14.7% were enrolled in the last 3 days of life. Hospice enrollment increased (adjusted odds ratio [AOR], 1.07; P < .001), whereas the mean time from the cancer diagnosis to hospice enrollment decreased by 65 days (relative decrease, 32%; adjusted hazard ratio, 1.04; P < .001). Relative decreases in late hospice enrollment were observed in the last month (7%; AOR, 0.98; P = .04) and last 3 days of life (26%; AOR, 0.95; P < .001). The Southeast region of the United States had both the highest rate of hospice enrollment and the lowest rate of late enrollment. Patient sociodemographic and lung cancer characteristics were associated with hospice enrollment. CONCLUSIONS: Among patients with advanced-stage lung cancer in the Veterans Affairs Health Care System, overall and earlier hospice enrollment increased over time. Considerable regional variability in hospice enrollment and the persistence of late enrollment suggests opportunities for improvement in end-of-life care. Cancer 2018;124:426 33. (c) 2017 American Cancer Society. PMID- 29023649 TI - A Long-Term Effect of Perceptual Individuation Training on Reducing Implicit Racial Bias in Preschool Children. AB - This study tracked the long-term effect of perceptual individuation training on reducing 5-year-old Chinese children's (N = 95, Mage = 5.64 years) implicit pro Asian/anti-Black racial bias. Initial training to individuate other-race Black faces, followed by supplementary training occurring 1 week later, resulted in a long-term reduction of pro-Asian/anti-Black bias (70 days). In contrast, training Chinese children to recognize White or Asian faces had no effect on pro Asian/anti-Black bias. Theoretically, the finding that individuation training can have a long-term effect on reducing implicit racial bias in preschoolers suggests that a developmentally early causal linkage between perceptual and social processing of faces is not a transitory phenomenon. Practically, the data point to an effective intervention method for reducing implicit racism in young children. PMID- 29023652 TI - Preface. PMID- 29023653 TI - The American Society for Clinical Pharmacology and Therapeutics: Its role in board certification in clinical pharmacology. PMID- 29023654 TI - The American Society for Clinical Pharmacology and Therapeutics: Programs to support education in clinical pharmacology. PMID- 29023655 TI - Annual meetings of the American Therapeutic Society and the American Society for Clinical Pharmacology and Therapeutics. PMID- 29023656 TI - The history of CLINICAL PHARMACOLOGY & THERAPEUTICS. PMID- 29023657 TI - Future of the American Society for Clinical Pharmacology and Therapeutics. PMID- 29023658 TI - Officers and award recipients. PMID- 29023660 TI - Financial history: 1970 to 1988. PMID- 29023659 TI - The relationships of the American Society for Clinical Pharmacology and Therapeutics to government. PMID- 29023661 TI - The American Society for Clinical Pharmacology and Therapeutics and the pharmaceutical industry. PMID- 29023662 TI - Research and the American Society for Clinical Pharmacology and Therapeutics. PMID- 29023663 TI - The founding, growth, and development. PMID- 29023664 TI - Discrimination and Ethnic-Racial Identity: Understanding Direction of Effects Using Within- and Between-Person Analyses. AB - Ethnic-racial identity (ERI) development and ethnic-racial discrimination are two salient experiences among adolescents in the United States. Despite growing awareness of the costs and benefits of these experiences individually, we know little about how they may influence one another. The current study examined competing hypotheses relating discrimination and components of ERI (i.e., exploration, resolution, affirmation) among a sample of Mexican-origin adolescent mothers (N = 181; Mage at Wave 1 = 16.83, SD = 1.01) across six waves of data. Findings revealed that within-person changes in discrimination predicted subsequent ERI resolution and affirmation; however, ERI did not predict subsequent discrimination. Between-person effects of discrimination on affirmation were significant. Our findings underscore the importance of discrimination experiences in shaping Mexican-origin adolescent mothers' normative developmental competencies. PMID- 29023665 TI - Clinician's guide to genes associated with Rett-like phenotypes-Investigation of a Danish cohort and review of the literature. AB - The differential diagnostics in Rett syndrome has evolved with the development of next generation sequencing-based techniques and many patients have been diagnosed with other syndromes or variants in newly described genes where the associated phenotype(s) is yet to be fully explored. The term Rett-like refers to phenotypes with distinct overlapping features of Rett syndrome where the clinical criteria are not completely fulfilled. In this study we have combined a review of Rett like disorders with data from a Danish cohort of 35 patients with Rett-like phenotypes emphasizing the diagnostic overlap with Pitt-Hopkins syndrome, Cornelia de Lange syndrome with SMC1A variants, and epileptic encephalopathies, for example, due to STXBP1 variants. We also found a patient with a pathogenic variant in KCNB1, which has not been previously linked to a Rett-like phenotype. This study underlines the clinical and genetic heterogeneity of a Rett syndrome spectrum, and provides an overview of the Rett syndrome-related genes described to date, and hence serves as a guide for diagnosing patients with Rett-like phenotypes. PMID- 29023666 TI - Nutritional intervention and neurodevelopmental outcome in infants with suspected cerebral palsy: the Dolphin infant double-blind randomized controlled trial. AB - AIM: To investigate whether docosahexaenoic acid (DHA), choline, and uridine-5 monophosphate (UMP) supplementation improves neurodevelopmental outcome in infants with suspected cerebral palsy (CP) versus a comparison group of children. METHOD: Infants aged 1 to 18 months with suspected CP were recruited from UK child development centres. Participants received daily treatment or control supplementation for 2 years (double-blind randomized control design). Stratification was by age, sex, predominant pattern of motor involvement (four limbs or other), and visual impairment (or not). The primary outcome was the cognitive composite score of the Bayley Scales of Infant and Toddler Development, Third Edition (CCS-Bayley-III). Secondary outcomes included language composite and motor composite scores of the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III). RESULTS: Forty infants were recruited; 35 began supplementation, 29 completed 1 to 2 years' supplementation. The treatment group CCS-Bayley-III was non-significantly higher than the comparison group (mean 77.7 [SD 19.2] and 72.2 [SD 19.8] respectively, mean modelled difference 4.4 [-2.8, 11.6]). The treatment group language scores, but not motor scores, were non-significantly higher than for the comparison group. INTERPRETATION: Most families found supplementation feasible. No statistically significant differences in neurodevelopmental outcome between the treatment and comparison groups were identified. Further investigation of neurodevelopmental outcome after supplementation with DHA, choline, and UMP of infants with suspected CP is warranted. WHAT THIS PAPER ADDS: This was the first trial of phosphatidylcholine precursor supplementation in infants with suspected cerebral palsy (CP). Families of infants with suspected CP found 2-year nutritional supplementation feasible. There was no statistically significant neurodevelopmental advantage for the treatment group versus the comparison group. However, treatment group cognitive and language advantage were of clinically meaningful magnitude. PMID- 29023668 TI - Ethnic Harassment and Immigrant Youth's Engagement in Violent Behaviors: Understanding the Risk Factors. AB - The present study aimed to examine whether ethnic harassment was related to violent behaviors among immigrant youth over time and to identify the risk factors. The sample comprised immigrant adolescents living in Sweden (N = 365; Mage = 13.93, SD = 0.80). Results showed that the more youth were ethnically harassed, the more they engaged in violent acts over time. A separated identity significantly moderated the effect of ethnic harassment on youth's engagement in violent behaviors. Specifically, ethnic harassment positively predicted engagement in violent behaviors only at high levels of separated identity. Impulsivity and school ethnic composition did not act as moderators. The findings suggest that preventing violent behaviors among immigrant youth requires a focus on promoting positive interethnic relationships, and multicultural identity among immigrant youth. PMID- 29023669 TI - Fungi reduce preference and performance of insect herbivores on challenged plants. AB - Although insect herbivores and fungal pathogens frequently share the same individual host plant, we lack general insights in how fungal infection affects insect preference and performance. We addressed this question in a meta-analysis of 1,113 case studies gathered from 101 primary papers that compared preference or performance of insect herbivores on control vs. fungus challenged plants. Generally, insects preferred, and performed better on, not challenged plants, regardless of experimental conditions. Insect response to fungus infection significantly differed according to fungus lifestyle, insect feeding guild, and the spatial scale of the interaction (local/distant). Insect performance was reduced on plants challenged by biotrophic pathogens or endophytes but not by necrotrophic pathogens. For both chewing and piercing-sucking insects, performance was reduced on challenged plants when interactions occurred locally but not distantly. In plants challenged by biotrophic pathogens, both preference and performance of herbivores were negatively impacted, whereas infection by necrotrophic pathogens reduced herbivore preference more than performance and endophyte infection reduced only herbivore performance. Our study demonstrates that fungi could be important but hitherto overlooked drivers of plant-herbivore interactions, suggesting both direct and plant-mediated effects of fungi on insect's behavior and development. PMID- 29023667 TI - Postnatal reduction of tuberous sclerosis complex 1 expression in astrocytes and neurons causes seizures in an age-dependent manner. AB - OBJECTIVE: Epilepsy is one of the most prominent symptoms of tuberous sclerosis complex (TSC), a genetic disorder, and may be related to developmental defects resulting from impaired TSC1 or TSC2 gene function in astrocytes and neurons. Inactivation of the Tsc1 gene driven by a glial-fibrillary acidic protein (GFAP) promoter during embryonic brain development leads to widespread pathologic effects on astrocytes and neurons, culminating in severe, progressive epilepsy in mice (Tsc1GFAP-Cre mice). However, the developmental timing and cellular specificity relevant to epileptogenesis in this model has not been well defined. The present study evaluates the effect of postnatal Tsc1 gene inactivation on pathologic features of astrocytes and neurons and development of epilepsy. METHODS: An inducible Tsc1 knock-out mouse was created utilizing a tamoxifen driven GFAP-CreER line (Tsc1GFAP-CreER mice) with TSC1 reduction induced postnatally at 2 and 6 weeks of age, and compared to conventional Tsc1GFAP-Cre mice with prenatal TSC1 reduction. Western blotting, immunohistochemistry, histology, and video-electroencephalography (EEG) assessed mechanistic target of rapamycin (mTOR) pathway activation, astrogliosis, neuronal organization, and spontaneous seizures, respectively. RESULTS: Tsc1 gene inactivation at 2 weeks of age was sufficient to cause astrogliosis and mild epilepsy in Tsc1GFAP-CreER mice, but the phenotype was much less severe than that observed with prenatal Tsc1 gene inactivation in Tsc1GFAP-Cre mice. Both astrocytes and neurons were affected by prenatal and postnatal Tsc1 gene activation to a degree similar to the severity of epilepsy, suggesting that both cellular types may contribute to epileptogenesis. SIGNIFICANCE: These findings support a model in which the developmental timing of TSC1 loss dictates the severity of neuronal and glial abnormalities and resulting epilepsy. PMID- 29023670 TI - Bi-dimensional null model analysis of presence-absence binary matrices. AB - Comparing the structure of presence/absence (i.e., binary) matrices with those of randomized counterparts is a common practice in ecology. However, differences in the randomization procedures (null models) can affect the results of the comparisons, leading matrix structural patterns to appear either "random" or not. Subjectivity in the choice of one particular null model over another makes it often advisable to compare the results obtained using several different approaches. Yet, available algorithms to randomize binary matrices differ substantially in respect to the constraints they impose on the discrepancy between observed and randomized row and column marginal totals, which complicates the interpretation of contrasting patterns. This calls for new strategies both to explore intermediate scenarios of restrictiveness in-between extreme constraint assumptions, and to properly synthesize the resulting information. Here we introduce a new modeling framework based on a flexible matrix randomization algorithm (named the "Tuning Peg" algorithm) that addresses both issues. The algorithm consists of a modified swap procedure in which the discrepancy between the row and column marginal totals of the target matrix and those of its randomized counterpart can be "tuned" in a continuous way by two parameters (controlling, respectively, row and column discrepancy). We show how combining the Tuning Peg with a wise random walk procedure makes it possible to explore the complete null space embraced by existing algorithms. This exploration allows researchers to visualize matrix structural patterns in an innovative bi dimensional landscape of significance/effect size. We demonstrate the rational and potential of our approach with a set of simulated and real matrices, showing how the simultaneous investigation of a comprehensive and continuous portion of the null space can be extremely informative, and possibly key to resolving longstanding debates in the analysis of ecological matrices. PMID- 29023671 TI - Genetics in pulmonary arterial hypertension in a large homogeneous Japanese population. AB - Pulmonary arterial hypertension (PAH) is a rare but serious disease with a grave prognosis. Bone morphogenetic protein type 2 receptor (BMPR2) gene is a strong pathogenic factor for PAH. As a collaborative team from Kyorin University and Keio University in Japan, we have analyzed the BMPR2 gene in 356 probands and more than 50 family members, including secondary patients. Importantly, the study population is a racially, ethnically, and socially homogeneous population. In PAH patients, there is a high incidence of unique mutations in BMPR2, and several mutations are frequently observed in the Japanese population, suggesting that these common and recurring mutations may be highly pathogenic or have high penetrance, explaining why they are found frequently throughout the world. We have also mapped each breakpoint of exonic deletions/duplications and found that most break and rejoining points are in the Alu elements. Reviewing the distribution of the reported mutations on each exon of BMPR2 revealed that the number and frequency of mutations are imbalanced among exons. The penetrance of BMPR2 gene mutations was 3-fold higher in females than males. Full elucidation of BMPR2-mediated pathogenic mechanisms in PAH requires persistent efforts to achieve precision or individualized medicine as a therapeutic strategy for PAH. PMID- 29023672 TI - Expecting the Unexpected? Expectations for Future Success Among Adolescent First Time Offenders. AB - Adolescent first-time offenders demonstrate greater risk of continued offending, justice system contact, and high school dropout. The current study evaluates if optimistic expectations protect youth by reducing offending and improving school grades for 3 years following a first arrest (N = 1,165, Mage = 15.29). This article also considers whether improved behavior raises expectations about the future and uses autoregressive latent trajectory modeling with structured residuals to examine the within-person cross-lagged associations between expectations and behavior. The results indicated that positive expectations reduce offending and improve grades, which are in turn associated with higher expectations. Although raising expectations may improve outcomes following an arrest, ensuring adolescents have the tools to meet their goals may be an effective way to raise expectations. PMID- 29023673 TI - Eppur Si Muove: ferritin is essential in modulating inflammation. AB - Ferritin, which was only discovered in the last century, has stirred a formidable debate. Ferritin has long been appreciated as a non-specific acute-phase reactant. Several years ago, we hypothesized the contributory role of ferritin as a pathogenic molecule rather than being a product of inflammation. The latest emerging evidence provides support to this notion. Such revelation provides a step forward towards the understanding of disease conditions associated with hyperferritinaemia, and hence provide new targets for treatment modalities. PMID- 29023675 TI - European Marketing Authorizations Granted Based on a Single Pivotal Clinical Trial: The Rule or the Exception? AB - A minimum of two positive, adequate, and well-controlled clinical trials has historically been the gold standard for providing substantial evidence to support regulatory approval of a new medicine. Nevertheless, the present analysis of European Marketing Authorizations granted between 2012 and 2016 showed that 45% of new active substances were approved based on a single pivotal clinical trial. For therapeutic areas such as oncology and cardiovascular diseases, approvals based on a single pivotal trial are the rule rather than the exception, whereas new medicines within the nervous system area were generally supported by two or more pivotal trials. While overall similar trends have been observed in the US, the recent US Food and Drug Administration approvals of nervous system medicines based on a single pivotal trial suggest that a case-by-case scientific evaluation of the totality of evidence is increasingly applied to facilitate faster access of new medicines to patients suffering from serious diseases. PMID- 29023676 TI - Neurocognitive problems in children with congenital cytomegalovirus infection. PMID- 29023674 TI - Reverse Translational Research of ABCG2 (BCRP) in Human Disease and Drug Response. AB - Reverse translational research takes a bedside-to-bench approach, using sophisticated basic research to explain the biological mechanisms behind observed clinical data. For transporters, which play a role in human disease and drug response, this approach offers a distinct advantage over the typical translational research, which often falters due to inadequate in vitro and preclinical animal models. Research on ABCG2, which encodes the Breast Cancer Resistance Protein, has benefited immensely from a reverse translational approach due to its broad implications for disease susceptibility and both therapeutic and adverse drug response. In this review, we describe the success of reverse translational research for ABCG2 and opportunities for further studies. PMID- 29023677 TI - Climate drives phenological reassembly of a mountain wildflower meadow community. AB - Spatial community reassembly driven by changes in species abundances or habitat occupancy is a well-documented response to anthropogenic global change, but communities can also reassemble temporally if the environment drives differential shifts in the timing of life events across community members. Much like spatial community reassembly, temporal reassembly could be particularly important when critical species interactions are temporally concentrated (e.g., plant-pollinator dynamics during flowering). Previous studies have documented species-specific shifts in phenology driven by climate change, implying that temporal reassembly, a process we term "phenological reassembly," is likely. However, few studies have documented changes in the temporal co-occurrence of community members driven by environmental change, likely because few datasets of entire communities exist. We addressed this gap by quantifying the relationship between flowering phenology and climate for 48 co-occurring subalpine wildflower species at Mount Rainier (Washington, USA) in a large network of plots distributed across Mt. Rainier's steep environmental gradients; large spatio-temporal variability in climate over the 6 yr of our study (including the earliest and latest snowmelt year on record) provided robust estimates of climate-phenology relationships for individual species. We used these relationships to examine changes to community co-flowering composition driven by 'climate change analog' conditions experienced at our sites in 2015. We found that both the timing and duration of flowering of focal species was strongly sensitive to multiple climatic factors (snowmelt, temperature, and soil moisture). Some consistent responses emerged, including earlier snowmelt and warmer growing seasons driving flowering phenology earlier for all focal species. However, variation among species in their phenological sensitivities to these climate drivers was large enough that phenological reassembly occurred in the climate change analog conditions of 2015. An unexpected driver of phenological reassembly was fine-scale variation in the direction and magnitude of climatic change, causing phenological reassembly to be most apparent early and late in the season and in topographic locations where snow duration was shortest (i.e., at low elevations and on ridges in the landscape). Because phenological reassembly may have implications for many types of ecological interactions, failing to monitor community-level repercussions of species-specific phenological shifts could underestimate climate change impacts. PMID- 29023678 TI - Reverse Translation in PBPK and QSP: Going Backwards in Order to Go Forward With Confidence. AB - Significant events have taken place shaping the recent industrialization of physiologically based pharmacokinetic in vitro-in vivo extrapolation (PBPK-IVIVE) use in drug development. Due to our knowledge gaps about drug-independent systems parameters, there are limitations in the use of purely IVIVE-based (bottom-up) approaches. This has encouraged combining the classical data analysis (top-down) with PBPK-IVIVE-linked models in order to optimize model parameters by taking advantage of observed clinical data. This concept, when initiated after clinical observations, can be viewed as "reverse translation," since it refers back to available systems information preclinical data before trying to describe the observations. This review demonstrates the advantages of such strategies in filling knowledge gaps and discusses the perceived hurdles in widening applications. It is paramount that no clinical data are assessed on their own, but in conjunction with other studies for that drug in different populations and/or other similar drugs in the same population. PMID- 29023679 TI - Explaining ecosystem multifunction with evolutionary models. AB - Ecosystem function is the outcome of species interactions, traits, and niche overlap - all of which are influenced by evolution. However, it is not well understood how the tempo and mode of niche evolution can influence ecosystem function. In evolutionary models where either species differences accumulate through random drift in a single trait or species differences accumulate through divergent selection among close relatives, we should expect that ecosystem function is strongly related to diversity. However, when strong selection causes species to converge on specific niches or when novel traits that directly affect function evolve in some clades but not others, the relationship between diversity and ecosystem function might not be very strong. We test these ideas using a field experiment that established plant mixtures with differing phylogenetic diversities and we measured ten different community functions. We show that some functions were strongly predicted by species richness and mean pairwise phylogenetic distance (MPD, a measure of phylogenetic diversity), including biomass production and the reduction of herbivore and pathogen damage in polyculture, while other functions had weaker (litter production and structural complexity) or nonsignificant relationships (e.g., flower production and arthropod abundance) with MPD and richness. However, these divergent results can be explained by different models of niche evolution. These results show that diversity-ecosystem function relationships are the product of evolution, but that the nature of how evolution influences ecosystem function is complex. PMID- 29023680 TI - First direct evidence of involvement of a homozygous loss-of-function variant in the EPS15L1 gene underlying split-hand/split-foot malformation. AB - Split-hand/split-foot malformation (SHFM) is a severe form of congenital limb deformity characterized by the absence of 1 or more digits and/or variable degree of median clefts of hands and feet. The present study describes an investigation of a consanguineous family of Pakistani origin segregating SHFM in an autosomal recessive manner. Human genome scan using SNP markers followed by whole exome sequencing revealed a frameshift deletion (c.409delA, p.Ser137Alafs*19) in the EPS15L1 gene located on chromosome 19p13.11. This is the first biallelic variant identified in the EPS15L1 gene underlying SHFM. Our findings report the first direct involvement of EPS15L1 gene in the development of human limbs. PMID- 29023681 TI - N-terminal S-acylation facilitates tonoplast targeting of the calcium sensor CBL6. AB - Protein S-acylation is important for many biological processes. It confers proteins with the ability to attach to the plasma membrane and the membranes confining the ER and Golgi compartments. Yet, the contribution of S-acylation to regulating and targeting lysosomal/vacuolar proteins remains largely enigmatic. Here, we report that vacuolar targeting of the calcium sensor calcineurin B-like protein 6 (CBL6) from Arabidopsis thaliana is brought about by S-acylation of N terminal cysteine residues. Our results suggest distinctions in mechanisms and efficiency of targeting between CBL6 and the previously characterized vacuolar targeted CBL2 protein. Moreover, we define which CBL-interacting protein kinases (CIPKs) could interact with CBL6 and observe a remarkable temperature dependence of CBL6/CIPK complex formation. Collectively, these findings indicate a common S acyla tion-dependent vacuolar membrane targeting pathway for proteins. PMID- 29023683 TI - Reducing reactive aggression in schoolchildren through child, parent, and conjoint parent-child group interventions: An efficacy study of longitudinal outcomes. AB - This study was the first to evaluate the effectiveness of three different group interventions to reduce children's reactive aggression based on the social information processing (SIP) model. In the first stage of screening, 3,734 children of Grades 4-6 completed the Reactive-Proactive Aggression Questionnaire (RPQ) to assess their reactive and proactive aggression. Respondents with a total score of z >= 1 on the RPQ were shortlisted for the second stage of screening by qualitative interview. Interviews with 475 children were conducted to select those who showed reactive aggression featuring a hostile attributional bias. Finally, 126 children (97 males and 29 females) aged 8 to 14 (M = 9.71, SD = 1.23) were selected and randomly assigned to one of the three groups: a child group, a parent group, and a parent-child group. A significant Time * Intervention effect was found for general and reactive aggression. The parent child group and child group showed a significant drop in general aggression and reactive aggression from posttest to 6-month follow-up, after controlling for baseline scores, sex, and age. However, the parent group showed no treatment effect: reactive aggression scores were significantly higher than those in the child group at 6-month follow-up. This study has provided strong evidence that children with reactive aggression need direct and specific treatment to reconstruct the steps of the SIP involving the selection and interpretation of cues. The intervention could help to prevent severe violent crimes at the later stage of a reactive aggressor. PMID- 29023682 TI - Short-term cytokine stimulation reveals regulatory T cells with down-regulated Foxp3 expression in human peripheral blood. AB - The identification of regulatory T cells (Treg cells) in human peripheral blood is an important tool in diagnosis, research, and therapeutic intervention. As compared to lymphoid tissues, the frequencies of circulating Treg cells identified as CD4+ CD25+ Foxp3+ are, however, low. We here show that many of these cells remain undetected due to transient down regulation of Foxp3, which rapidly decays in the absence of cytokine-mediated STAT5 signals. Short-term incubation of PBMCs or isolated CD4+ T cells, but not of lymph node cells, with IL-2, -7, or -15 more than doubles the frequency of Foxp3+ CD25+ among CD4+ T cells detectable by flow cytometry. This increase is not due to cell division but to upregulation of both proteins. At the same time, the uncovered Treg cells up regulate CD25 and down-regulate CD127, making them accessible to viable cell sorting. "Latent" Treg cells have a demethylated FOXP3 TSDR sequence, are enriched in naive, non-cycling cells, and are functional. The confirmation of our findings in RA and SLE patients shows the feasibility of uncovering latent Treg cells for immune monitoring in clinical settings. Finally, our results suggest that unmasking of latent Treg cells contributes to the increase in circulating CD4+ CD25+ Foxp3+ cells reported in IL-2 treated patients. PMID- 29023684 TI - Spot On? PMID- 29023685 TI - Summary statement on screening for prostate cancer in Europe. AB - The European Randomised Study of Screening for Prostate Cancer (ERSPC) showed that Prostate-Specific Antigen (PSA) based screening results in a significant prostate cancer mortality reduction. Although there are concerns on overdiagnosis and overtreatment, it has been shown that the benefits can outweigh the harms if screening is stopped in older ages to prevent overdiagnosis. A limited screening program (for example screening at ages 55-59 years), including active surveillance for men with low-risk tumors, can even be cost-saving, compared with testing in an opportunistic setting in the wrong ages, as currently in Europe. Further improvements are expected in the use of active surveillance and in discrimination between indolent and significant disease due to new biomarkers and magnetic resonance imaging. However, these future developments are no reason to postpone feasibility studies of high-quality PSA screening and reduce opportunistic testing at old ages. PMID- 29023686 TI - Body fatness at an early age and risk of colorectal cancer. AB - While there is convincing evidence that excess body fatness in adulthood is positively associated with colorectal cancer risk, the association between body fatness at an early age (<=30 years) and the risk of colorectal cancer has been equivocal. The present meta-analysis was performed to clarify this association. PubMed and Web of Science databases were searched for relevant studies that investigated this association. The risk estimates from each study were transformed into a continuous variable for each 5 kg/m2 increase in body mass index (BMI). A random effects model was used to calculate the summary relative risks (RRs) with 95% confidence intervals (CIs). A total of 15 observational studies (13 cohort studies and two case-control studies) were included in this meta-analysis. Each 5 kg/m2 increase in BMI was significantly associated with a 13% (RR 1.13, 95% CI 1.08, 1.19), 17% (RR 1.17, 95% CI 1.09, 1.25) and 8% (RR 1.08, 95% CI 1.04, 1.11) higher risk of colorectal cancer overall, in men, and in women, respectively. Substantial heterogeneity was observed across studies. Based on the anatomic subsite, each 5 kg/m2 increase in BMI was significantly associated with a 14% (RR 1.14, 95% CI 1.07, 1.22) higher risk of colon cancer, whereas no association (RR 1.03, 95% CI 0.95, 1.13) was observed with rectal cancer. In summary, body fatness at an early age may affect colon cancer risk later in life. Prevention of overweight and obesity in young individuals should be emphasized to prevent early-onset colon cancer attributed to excess body fatness. PMID- 29023687 TI - A guide for effective anatomical vascularization studies: useful ex vivo methods for both CT and MRI imaging before dissection. AB - The objective of this study was to develop a simple and useful injection protocol for imaging cadaveric vascularization and dissection. Mixtures of contrast agent and cast product should provide adequate contrast for two types of ex vivo imaging (MRI and CT) and should harden to allow gross dissection of the injected structures. We tested the most popular contrast agents and cast products, and selected the optimal mixture composition based on their availability and ease of use. All mixtures were first tested in vitro to adjust dilution parameters of each contrast agent and to fine-tune MR imaging acquisition sequences. Mixtures were then injected in 24 pig livers and one human pancreas for MR and computed tomography (CT) imaging before anatomical dissection. Colorized latex, gadobutrol and barite mixture met the above objective. Mixtures composed of copper sulfate (CuSO4 ) gadoxetic acid (for MRI) and iodine (for CT) gave an inhomogeneous signal or extravasation of the contrast agent. Agar did not harden sufficiently for gross dissection but appears useful for CT and magnetic resonance imaging (MRI) studies without dissection. Silicone was very hard to inject but achieved the goals of the study. Resin is particularly difficult to use but could replace latex as an alternative for corrosion instead of dissection. This injection protocol allows CT and MRI images to be obtained of cadaveric vascularization and anatomical casts in the same anatomic specimen. Post-imaging processing software allow easy 3D reconstruction of complex anatomical structures using this technique. Applications are numerous, e.g. surgical training, teaching methods, postmortem anatomic studies, pathologic studies, and forensic diagnoses. PMID- 29023688 TI - Developing nursing research in the United Arab Emirates: a narrative review. AB - AIM: This article identified, critically analysed and synthesized the literature on international nursing and midwifery research capacity building and standards. BACKGROUND: The United Arab Emirates is heavily dependent up on expatriate nurses. Only 4% of nurses working within the country are Emirati. The nation is therefore committed to developing nurses and nursing as a profession. INTRODUCTION: The United Arab Emirates' Nursing and Midwifery Council was formed in 2009 and initially focused on regulation, education and specialization. This review was undertaken to inform the work of the Council's newly established Scientific Research Sub-Committee. METHODS: A rapid narrative review was conducted using the Cumulative Index of Nursing and Allied Health Literature database, key words, Boolean operators, parameters and a journal-specific search. An inclusion/exclusion criterion was identified. RESULTS: The search provided 332 articles with 45 included in the final review. The literature on nursing research 'standards' and 'capacity building' is diverse and inconsistent across continents and in approaches. DISCUSSION: Nursing research has evolved to varying degrees across the globe. Nevertheless, irrespective of the locale, there are similar problems encountered in growing research, for example nursing faculty shortage, lack of collaborative research, funding. There are also specific challenges in the Middle East and North Africa region. LIMITATIONS: The review was constrained by time and access. CONCLUSION AND IMPLICATIONS FOR NURSING POLICY: There are specific challenges for the United Arab Emirates. However, the country is well placed to learn from the experiences of colleagues elsewhere. Time and commitment is required to build the solid foundations necessary to ensure robust, sustained growth. Identifying research capacity as both a process and outcome at the outset may also assist. Further, it may be prudent to consider initiating a Gulf Coast Countries' collaborative approach to building research capacity to harness scare resources and create a larger critical mass. PMID- 29023689 TI - Difference of lower airway microbiome in bilateral protected specimen brush between lung cancer patients with unilateral lobar masses and control subjects. AB - The functional role of respiratory microbiota has attracted an accumulating attention recently. However, the role of respiratory microbiome in lung carcinogenesis is mostly unknown. Our study aimed to characterize and compare bilateral lower airway microbiome of lung cancer patients with unilateral lobar masses and control subjects. Protected bronchial specimen brushing samples were collected from 24 lung cancer patients with unilateral lobar masses (paired samples from cancerous site and the contralateral noncancerous site) and 18 healthy controls undergoing bronchoscopies and further analyzed by 16S rRNA amplicon sequencing. As results, significant decreases in microbial diversity were observed in patients with lung cancer in comparison to the controls, alpha diversity steadily declined from healthy site to noncancerous to cancerous site. Genus Streptococcus was significantly more abundant in cancer cases than the controls, while Staphylococcus was more abundant in the controls. The area under the curve of genus Streptococcus used to predict lung cancer was 0.693 (sensitivity = 87.5%, specificity = 55.6%). The abundance of genus Streptococcus and Neisseria displayed an increasing trend whereas Staphylococcus and Dialister gradually declined from healthy to noncancerous to cancerous site. Collectively, lung cancer-associated microbiota profile is distinct from that found in healthy controls, and the altered cancer-associated microbiota is not restricted to tumor tissue. The genus Streptococcus was abundant in lung cancer patients and exhibited moderate classification potential. The gradual microbiota profile shift from healthy site to noncancerous to paired cancerous site suggested a change of the microenvironment associated with the development of lung cancer. PMID- 29023690 TI - The bony horncore of the common eland (Taurotragus oryx): composition and mechanical properties of a spiral fighting structure. AB - Horns are permanent structures projecting from the head of bovids, consisting of a bony horncore covered with a layer of skin and then a sheath of keratinous material showing variability of growth intensity based on nutrition. From the point of view of the horn's mechanical properties, the keratin sheath has been widely studied, but only a few studies have considered the complete structure of the horn and fewer studies have focused on the bony horncore and its characteristics. The latter showed the important role of the bony core, when cranial appendages are subject to mechanical stress (as happens during fighting). The mechanical properties of bone material, along with its mineral profile, are also important, because they can show effects of different factors, such as nutrition and mineral deficiencies in diet. For this reason, eight horncores of captive common eland male were sampled at four positions along the vertical axis of the horn. The main aim was to study variation in mechanical properties and the mineral content along the vertical axis of the horncores. We further analysed whether the spiral bony ridge present on eland horncores differs in any of the studied properties from adjacent parts of the horncore. In other antelopes, spiral ridges on the horns have been proposed to increase grip during wrestling between males. Cross-sections of the horncores were performed at four positions along the longitudinal axis and, for each position, two bone bars were extracted to be tested in impact and bending. Moreover, in the first sampling position (the closest position to the base) two bars were extracted from the spiralled bony area. The resulting fragments were used to measure ash content, bone density and mineral content. Results showed that horn bone decreased along the vertical axis, in ash (-36%), density (-32%), and in impact work 'U' (marginally significant but large effect: -48%). The concentration of several minerals decreased significantly (Mg, Cr, Mn and Tl by -33%, -25%, -31%, -43%, respectively) between the basal and the uppermost sampling site. The bone tissue of the horncore spiral compared with non-spiral bone of the same position showed a lower ash content (53% vs. 57%), Mg and Mn; in addition to showing approximately half values in work to peak force 'W', bending strength 'BS' and 'U', but not in Young's modulus of elasticity 'E'. In conclusion, similarly to the results in a totally different fighting bony structure, the antlers, the horncore of eland shows advantageous parameters in bone tissue of the base in respect to the tip, with higher values for mechanical properties, density and mineral profile. Moreover, the spiral bone tissue showed lower material mechanical properties. Probably the spiral tissue of the horn may have a role in deflecting potential cross-sectional fractures during wrestling. In addition, it may serve to improve the grip during wrestling, and we propose that it may also prevent risk of rotation of sheath with respect to internal bone not only in this, but also in other straight bovid horns. PMID- 29023691 TI - Anatomy and development of the extrahepatic biliary system in mouse and rat: a perspective on the evolutionary loss of the gallbladder. AB - The gallbladder is the hepatobiliary organ for storing and secreting bile fluid, and is a synapomorphy of extant vertebrates. However, this organ has been frequently lost in several lineages of birds and mammals, including rodents. Although it is known as the traditional problem, the differences in development between animals with and without gallbladders are not well understood. To address this research gap, we compared the anatomy and development of the hepatobiliary systems in mice (gallbladder is present) and rats (gallbladder is absent). Anatomically, almost all parts of the hepatobiliary system of rats are topographically the same as those of mice, but rats have lost the gallbladder and cystic duct completely. During morphogenesis, the gallbladder-cystic duct domain (Gb-Cd domain) and its primordium, the biliary bud, do not develop in the rat. In the early stages, SOX17, a master regulator of gallbladder formation, is positive in the murine biliary bud epithelium, as seen in other vertebrates with a gallbladder, but there is no SOX17-positive domain in the rat hepatobiliary primordia. These findings suggest that the evolutionary loss of the Gb-Cd domain should be translated simply as the absence of a biliary bud at an early stage, which may correlate with alterations in regulatory genes, such as Sox17, in the rat. A SOX17-positive biliary bud is clearly definable as a developmental module that may be involved in the frequent loss of gallbladder in mammals. PMID- 29023693 TI - Host effects on microbiota community assembly. AB - To what extent host-associated microbiota assembly is driven by host selection or simply by happenstance remains an open question in microbiome research. Here, we take a first step towards elucidating the relative importance of host selection on the establishing gut microbial community in an ecologically relevant organism. We presented germ-free bumblebee, Bombus terrestris, workers from 10 colonies with a "global" microbial species pool comprised of an equal mixture of the gut microbiota of all colonies. By means of 16S amplicon sequencing, we found that overall microbiota community composition was generally shifted between pool exposed workers compared to workers that naturally acquired their gut microbiota, but that the specific composition of the established microbiota also depended on colony identity (e.g. genetic background). Because the microbiota is protective against parasite infection in this system, variation in the filtering of a beneficial microbial community can have important consequences for host resistance and eventual co-evolution with parasites. PMID- 29023692 TI - Lower socioeconomic status is independently associated with shorter survival in Hodgkin Lymphoma patients-An analysis from the Brazilian Hodgkin Lymphoma Registry. AB - Socioeconomic status (SES) is a well-known determinant of outcomes in cancer. The purpose of this study was to analyze the impact of the SES on the outcomes of Hodgkin lymphoma (HL) patients from the Brazilian Prospective HL Registry. SES stratification was done using an individual asset/education-based household index. A total of 624 classical HL patients with diagnosis from January/2009 to December/2014, and treated with ABVD (doxorubicin, bleomycin, vinblastine and dacarbazine), were analyzed. The median follow-up was 35.6 months, and 33% were classified as lower SES. The 3-year progression- free survival (PFS) in higher and lower SES were 78 and 64% (p < 0.0001), respectively. The 3-year overall survival (OS) in higher and lower SES were 94 and 82% (p < 0.0001), respectively. Lower SES patients were more likely to be >= 60 years (16 vs. 8%, p = 0.003), and to present higher risk International Prognostic score (IPS) (44 vs. 31%, p = 0.004) and advanced disease (71 vs. 58%, p = 0.003). After adjustments for potential confounders, lower SES remained independently associated with poorer survival (HR = 3.12 [1.86-5.22] for OS and HR = 1.66 [1.19-2.32] for PFS). The fatality ratio during treatment was 7.5 and 1.3% for lower and higher SES (p = 0.0001). Infections and treatment toxicity accounted for 81% of these deaths. SES is an independent factor associated with shorter survival in HL in Brazil. Potential underlying mechanisms associated with the impact of SES are delayed diagnosis and poorer education. Educational and socio-economic support interventions must be tested in this vulnerable population. PMID- 29023694 TI - Adaptive self-organization in the embryo: its importance to adult anatomy and to tissue engineering. AB - The anatomy of healthy humans shows much minor variation, and twin-studies reveal at least some of this variation cannot be explained genetically. A plausible explanation is that fine-scale anatomy is not specified directly in a genetic programme, but emerges from self-organizing behaviours of cells that, for example, place a new capillary where it happens to be needed to prevent local hypoxia. Self-organizing behaviour can be identified by manipulating growing tissues (e.g. putting them under a spatial constraint) and observing an adaptive change that conserves the character of the normal tissue while altering its precise anatomy. Self-organization can be practically useful in tissue engineering but it is limited; generally, it is good for producing realistic small-scale anatomy but large-scale features will be missing. This is because self-organizing organoids miss critical symmetry-breaking influences present in the embryo: simulating these artificially, for example, with local signal sources, makes anatomy realistic even at large scales. A growing understanding of the mechanisms of self-organization is now allowing synthetic biologists to take their first tentative steps towards constructing artificial multicellular systems that spontaneously organize themselves into patterns, which may soon be extended into three-dimensional shapes. PMID- 29023695 TI - The biorhythm of human skeletal growth. AB - Evidence of a periodic biorhythm is retained in tooth enamel in the form of Retzius lines. The periodicity of Retzius lines (RP) correlates with body mass and the scheduling of life history events when compared between some mammalian species. The correlation has led to the development of the inter-specific Havers Halberg oscillation (HHO) hypothesis, which holds great potential for studying aspects of a fossil species biology from teeth. Yet, our understanding of if, or how, the HHO relates to human skeletal growth is limited. The goal here is to explore associations between the biorhythm and two hard tissues that form at different times during human ontogeny, within the context of the HHO. First, we investigate the relationship of RP to permanent molar enamel thickness and the underlying daily rate that ameloblasts secrete enamel during childhood. Following this, we develop preliminary research conducted on small samples of adult human bone by testing associations between RP, adult femoral length (as a proxy for attained adult stature) and cortical osteocyte lacunae density (as a proxy for the rate of osteocyte proliferation). Results reveal RP is positively correlated with enamel thickness, negatively correlated with femoral length, but weakly associated with the rate of enamel secretion and osteocyte proliferation. These new data imply that a slower biorhythm predicts thicker enamel for children but shorter stature for adults. Our results develop the intra-specific HHO hypothesis suggesting that there is a common underlying systemic biorhythm that has a role in the final products of human enamel and bone growth. PMID- 29023696 TI - Tumor-infiltrating tryptase+ mast cells predict unfavorable clinical outcome in solid tumors. AB - The prognostic role of tumor-infiltrating tryptase+ mast cells in human solid tumors remains controversial. Herein, we conducted a meta-analysis including 28 published studies with 4224 patients identified from PubMed and EBSCO to assess the prognostic impact of tumor-infiltrating tryptase+ mast cells in human solid tumors. We found that tryptase+ mast cell infiltration significantly decreased overall survival (OS) and disease-free survival (DFS) in all types of solid tumors. In stratified analyses, tryptase+ mast cell infiltration was significantly associated with worse OS in non-small cell lung cancer, hepatocellular carcinoma and 5-year survival in colorectal cancer. And these cells were inversely associated with DFS in hepatocellular and colorectal cancer. In addition, high density of intratumoral tryptase+ mast cells significantly correlated with lymph node metastasis of solid tumor. In conclusion, Tryptase+ mast cell infiltration leads to an unfavorable clinical outcome in solid tumors, implicating that it is a valuable biomarker for prognostic prediction for human solid malignances and targeting it may have a potential for effective treatment. PMID- 29023697 TI - Neoadjuvant radiation therapy for the management of myoepithelial carcinoma of the upper extremity. AB - Myoepithelial tumors of the soft tissue are a rare tumor displaying myoepithelial elements and lacking obvious ductal differentiation. The rarity of these precludes any evidence-based consensus regarding optimal management. Nevertheless, the current approach to these lesions begins with amputation or complete excision. The efficacy of neoadjuvant or adjuvant radiation therapy or chemotherapy has not been established. Here, we present the first report to the authors' knowledge of neoadjuvant radiation therapy for the treatment of this rare soft tissue neoplasm and review the management and outcomes of published cases of myoepithelial carcinoma. A patient with a soft tissue myoepithelial carcinoma that declined both amputation and chemotherapy was treated with neoadjuvant radiation therapy and wide surgical excision followed by a brachytherapy boost to the resected tumor bed. Neoadjuvant radiation therapy resulted in an excellent response with extensive treatment-related changes consisting predominantly of fibrosis, hyalinization and hemorrhage and only 10% residual viable myoepithelial carcinoma present in the surgical specimen. PMID- 29023698 TI - Decomposition of socioeconomic inequalities in preterm deliveries in Tehran, Iran. AB - OBJECTIVE: To investigate associations between economic inequality in preterm delivery. METHODS: The present secondary analysis included cross-sectional data collected in interviews with patients following delivery at 103 hospitals in Tehran, Iran, between July 6 and 21, 2015. Principal component analysis was used to measure the socioeconomic status of participants and the concentration index was used to measure inequalities in preterm delivery among patients of different socioeconomic status. RESULTS: Data were included from 5170 patients. The concentration index for preterm delivery was 0.087 (95% confidence interval 0.036 0.134), indicating that preterm deliveries were concentrated among patients with higher socioeconomic status. Higher socioeconomic status (94%), younger maternal age (29%), younger paternal age (21%), and being a homemaker (17%) had the highest positive contributions to the measured inequalities in preterm deliveries; vaginal delivery (-58%) had the highest negative contribution. CONCLUSION: Preterm deliveries were distributed unequally among the study patients in Iran, and were concentrated among patients of higher socioeconomic status. Alongside future etiological studies, reproductive programs in Iran should focus on this population to redress the observed inequality. PMID- 29023700 TI - Teaching & Learning Tips 1: Teaching perspectives - an introduction. AB - Challenge: Clinical and research responsibilities often leave little or no time to plan thoughtful teaching encounters with trainees. This "Teaching & Learning Tips" series is designed to be an accessible guide for dermatologists who want to improve their teaching skills. It is comprised of 12 articles about how to enhance teaching in various settings informed by research about how people learn and expert-derived or data-driven best practices for teaching. The series begins with a review of principles to optimize learning in any setting, including cognitive load theory, active learning strategies, and the impact of motivation and emotion on learning. It transitions into a practical "how to" guide format for common teaching scenarios in dermatology, such as lecturing, case-based teaching, and teaching procedures, among others. Herein, we kickoff the series by unpacking assumptions about teaching and learning. What does it mean to teach and learn? PMID- 29023701 TI - Identification of novel homozygous SLURP1 mutation in a Javanese family with Mal de Meleda. AB - BACKGROUND: Mal de Meleda (OMIM# 248300; keratosis palmoplantaris transgrediens) is an autosomal recessive form of palmoplantar keratoderma, clinically characterized by sharp demarcated erythema and hyperkeratosis of the palms and soles that progress with age and extend to the dorsal aspects of the hands and feet. The mal de Meleda is caused by mutations in the SLURP1 gene that encodes secreted lymphocyte antigen 6/urokinase-type plasminogen receptor-related protein 1 (SLURP1). To date no reported cases from Indonesia. The aims of the study were to describe the typical features of mal de Meleda cases in a Javanese family in Indonesia and identify the mutation in the ARS B gene which encodes SLURP1. PATIENTS AND METHODS: In this study, three Javanese patients, siblings from nonconsanguineous nonaffected parents, presented with classical symptoms of mal de Meleda. Genetic analysis screening SLURP1 gene was conducted for the specimens from the patients and other family members. RESULTS: A novel homozygous three nucleotide deletion in exon 3, i.e. c.271-273TCTdel, was identified in the patients. Subcloning and sequencing revealed both parents (I.2 and I.3) and one of the father's siblings (I.1) carry heterozygous c.271-273TCTdel, while the other father's sibling (I.2), the mother's sister (I.4), and a healthy control matched the ethnicity of the family, showing normal sequence of the entire SLURP1. CONCLUSION: This is the first mal de Meleda case of Javanese ethnicity to be documented, and the unique mutation has not previously been reported. The finding supports the notion that despite the rarity, SLURP1 mutation causing mal de Meleda is ubiquitous. PMID- 29023699 TI - Using host species traits to understand the consequences of resource provisioning for host-parasite interactions. AB - Supplemental food provided to wildlife by human activities can be more abundant and predictable than natural resources, and subsequent changes in wildlife ecology can have profound impacts on host-parasite interactions. Identifying traits of species associated with increases or decreases in infection outcomes with resource provisioning could improve assessments of wildlife most prone to disease risks in changing environments. We conducted a phylogenetic meta-analysis of 342 host-parasite interactions across 56 wildlife species and three broad taxonomic groups of parasites to identify host-level traits that influence whether provisioning is associated with increases or decreases in infection. We predicted dietary generalists that capitalize on novel food would show greater infection in provisioned habitats owing to population growth and food-borne exposure to contaminants and parasite infectious stages. Similarly, species with fast life histories could experience stronger demographic and immunological benefits from provisioning that affect parasite transmission. We also predicted that wide-ranging and migratory behaviours could increase infection risks with provisioning if concentrated and non-seasonal foods promote dense aggregations that increase exposure to parasites. We found that provisioning increased infection with bacteria, viruses, fungi and protozoa (i.e. microparasites) most for wide-ranging, dietary generalist host species. Effect sizes for ectoparasites were also highest for host species with large home ranges but were instead lowest for dietary generalists. In contrast, the type of provisioning was a stronger correlate of infection outcomes for helminths than host species traits. Our analysis highlights host traits related to movement and feeding behaviour as important determinants of whether species experience greater infection with supplemental feeding. These results could help prioritize monitoring wildlife with particular trait profiles in anthropogenic habitats to reduce infectious disease risks in provisioned populations. PMID- 29023703 TI - Use of Multi-Intake Temporal Dominance of Sensations (TDS) to Evaluate the Influence of Wine on Cheese Perception. AB - : Even if wine and cheese have long been consumed together, there is little sensory evidence on how wine can influence the perception of cheese. In this work 4 cheeses were dynamically characterized in terms of dominant sensations without and with wine consumption in between intakes. The tasting protocol was based on multi-intake temporal dominance of sensations (TDS) coupled with hedonic rating. Frequent wine and cheese consumers (n = 31) evaluated 4 cheeses (Epoisses, Chaource, and 2 different Comte) over 3 consecutive bites. In the following sessions they performed the same task, but taking sips of wine (rose Riceys, white Burgundy, red Burgundy, and red Beaujolais) between bites. All cheese-wine combinations were tasted over 4 sessions. TDS data were analyzed in terms of attribute duration of dominance by ANOVA, MANOVA, and canonical variate analysis. Results showed that wine consumption had an impact (P < 0.1) on dominance duration of attributes of cheeses, particularly on salty and some aromatic notes. But, as opposed to a previous work done by the same team, wine had no impact on the preference of cheese; this stayed constant under all the evaluating conditions. PRACTICAL APPLICATION: This paper aims to validate an innovative protocol on dynamic sensory data acquisition in which consumers evaluate the impact of a beverage (wine) on a solid food (cheese). This protocol is complementary to a previous one presented in this journal, where the effect of cheese was tested on wine. Together they make up an interesting approach towards developing a new tool for the food sector to better understand the impact of one food product on another. This could lead to a better description of a whole meal, something which is still missing in sensory science. PMID- 29023704 TI - GABAA receptor subunits in the human amygdala and hippocampus: Immunohistochemical distribution of 7 subunits. AB - GABAergic neurotransmission in the amygdala contributes to the regulation of emotional processes in anxiety, stress, reward, mnestic functions, addiction, and epilepsy. Species-specific differences in the distribution and composition of GABAA receptors may account for distinct effects and side-effects of GABAergic agents. However, data on the distribution and composition of GABAA receptors in the human amygdala are lacking. Here, the expression of GABAA receptor subunits alpha1, alpha2, alpha3, alpha5, beta2, beta2/3, and gamma2 was studied in the human amygdala using immunohistochemistry. Hippocampi were evaluated as a reference structure. Neuronal counts and field fraction analyses were performed, and subcellular expression of GABAA receptor subunits was analyzed semiquantitatively. In the amygdala, field fraction analyses showed the highest alpha1 expression in the lateral nucleus (La), whereas alpha3 was prominent in intercalated nuclei (IC), and alpha5 and gamma2 in the cortical nuclei, and amygdalo-hippocampal/parahippocampal-amygdala transition areas. In the hippocampus, alpha1 and alpha3 were accentuated in the dentate gyrus, CA1 region, and subiculum, whereas alpha5 expression was rather uniform. In both regions, alpha2 was homogenously distributed, and the two beta subunits and gamma2 showed faint immunostaining. The intensity of subunit expression also varied in the neuropil, neuronal somata, and/or cellular processes in the subregions. GABAA receptors containing subunit alpha1, showing the strongest expression in the La, and alpha3, with the strongest expression in the IC and subiculum, could be targets for treating amygdala-related disorders. Differences in GABAA receptor subunit expression between the human and rodent amygdala should be taken into consideration when developing subunit-selective drugs. PMID- 29023705 TI - Larval fish collected from sound-scattering layers in an offshore tropical area. AB - The composition of the larval fish assemblage in the sound-scattering layer of the continental shelf waters off the coast of south-eastern Brazil (12 and 22 degrees S), a research project that is part of the Brazilian programme Avaliacao do Potencial Sustentavel de Recursos Vivos na Zona Economica Exclusiva (REVIZEE), is described. Samples were collected during daylight hours and at dusk at five oceanographic stations in the winter of 1999 using an Isaacs-Kidd Midwater Trawl (IKMT). The oceanographic stations were chosen based on the detection of plankton layers by acoustic observation. A total of 2192 larval fish were identified, comprising 52 families and 62 species. Maurolicus stehmanni (Sternoptychidae) was the most abundant species found within the study area, comprising 18.5% of all identified larvae, followed by Psilotris celsus (Gobiidae) at 10.9%. PMID- 29023708 TI - Go with the immunological flow - Guidelines for flow cytometry. PMID- 29023711 TI - Alteration of sphingolipid metabolism as a putative mechanism underlying LPS induced BBB disruption. AB - Septic encephalopathy with confusion and agitation occurs early during sepsis and contributes to the severity of the disease. A decrease in the sphingosine-1 phosphate (S1P) blood levels has been shown in patients and in animal models of sepsis. The lipid mediator S1P is known to be involved in endothelial barrier function in a context-dependent manner. We utilized lipopolysaccharide (LPS) injected mice as a model for septic encephalopathy and first performed tracer permeability assays to assess the blood-brain barrier (BBB) breakdown in vivo. At time points corresponding to the BBB breakdown post LPS injection, we aimed to characterize the regulation of the sphingolipid signaling pathway at the BBB during sepsis. We measured sphingolipid concentrations in blood, in mouse brain microvessels (MBMVs), and brain tissue. We also analyzed the expression of S1P receptors, transporters, and metabolizing enzymes in MBMVs and brain tissue. Primary mouse brain microvascular endothelial cells (MBMECs) were isolated to evaluate the effects of LPS on transendothelial electrical resistance (TEER) as a measure of permeability in vitro. We observed a relevant decrease in S1P levels after LPS injection in all three compartments (blood, MBMVs, brain tissue) that was accompanied by an increased expression of the S1P receptor type 1 and of sphingosine kinase 1 on one hand and of the S1P degrading enzymes lipid phosphate phosphatase 1 (LPP1) and S1P phosphatase 1 on the other hand, as well as a down regulation of sphingosine kinase 2. Application of LPS to a monolayer of primary MBMECs did not alter TEER, but serum from LPS-treated mice lead to a breakdown of the barrier compared to serum from vehicle-treated mice. We observed profound alterations of the sphingolipid metabolism at the BBB after LPS injection that point toward a therapeutic potential of drugs interfering with this pathway as novel approach for the detrimental overwhelming immune response in sepsis. Read the Editorial Highlight for this article on page 115. Cover Image for this Issue: doi. 10.1111/jnc.14161. PMID- 29023712 TI - The microstructure, local indium composition and photoluminescence in green emitting InGaN/GaN quantum wells. AB - In this work, we analyse the microstructure and local chemical composition of green-emitting Inx Ga1-x N/GaN quantum well (QW) heterostructures in correlation with their emission properties. Two samples of high structural quality grown by metalorganic vapour phase epitaxy (MOVPE) with a nominal composition of x = 0.15 and 0.18 indium are discussed. The local indium composition is quantitatively evaluated by comparing scanning transmission electron microscopy (STEM) images to simulations and the local indium concentration is extracted from intensity measurements. The calculations point out that the measured indium fluctuations may be correlated to the large width and intensity decrease of the PL emission peak. PMID- 29023713 TI - Integrating clients' religion/spirituality in clinical practice: A comparison among social workers, psychologists, counselors, marriage and family therapists, and nurses. AB - OBJECTIVE: This study was designed to describe and compare five helping professions' views and behaviors regarding the integration of clients' religion/spirituality (RS) in clinical practice. METHOD: A cross-sectional design was used to survey 3,500 licensed clinical psychologists, nurses, marriage and family therapists (LMFTs), clinical social workers, and professional counselors across Texas. A total of 550 responded to this online survey, which included the Religious/Spiritually Integrated Practice Assessment Scale and background questions. RESULTS: Attitudes concerning the integration of clients' RS did not differ by profession and were fairly positive. However, differences emerged regarding self-efficacy, perceived feasibility, and behaviors, with LMFTs reporting the highest scores for these subscales. CONCLUSION: This is the first comparison of these five professions' attitudes, behaviors, perceived feasibility, and self-efficacy regarding integrating clients' RS. These encouraging results not only indicate helping professionals' openness to integrating clients' RS, but also highlight key differences in training, self efficacy, views of feasibility, and implementation. PMID- 29023715 TI - A new parameter of growth inhibition for cell proliferation assays. AB - Cell proliferation assays are performed by four decades to test the anti proliferative activity of natural products and synthetic compounds in cell cultures. In cancer research, they are widely employed to evaluate drug efficacy in in vitro tumor models, such as established cell lines, primary cultures, and recently developed three-dimensional tumor organoids. In this manuscript, we demonstrated that current employed parameters used by researchers to quantify in vitro growth inhibition, IC50 and GI50 , lead to a misinterpretation of results based on the exponential, and not linear, proliferation of the cells in culture. Therefore, we introduce a new parameter for the analysis of growth inhibition in cell proliferation assays, termed relative population doubling capacity, that can be employed to properly quantify the anti-proliferative activity of tested compounds and to compare drug efficacy between distinct cell models. PMID- 29023714 TI - In Vitro Assessment of Bioactivities of Lactobacillus Strains as Potential Probiotics for Humans and Chickens. AB - : Twelve previously isolated Lactobacillus strains were investigated for their in vitro bioactivities, including bile salt hydrolase (BSH), cholesterol-reducing and antioxidant activities, cytotoxic effects against cancer cells, enzyme activity, and biogenic amine production. Among them, only 4 strains showed relatively high BSH activity, whereas the rest exhibited low BSH activity. All 12 strains showed cholesterol-reducing and antioxidant activities, especially in their intact cells, which in most of the cases, the isolated strains were stronger in these activities than the tested commercial reference strains. None of the tested strains produced harmful enzymes (beta-glucosidase and beta glucuronidase) or biogenic amines. Among the 12 strains, 3 strains were tested for their cytotoxic effects against 3 cancer cell lines, which exhibited strong cytotoxic effects, and they also showed selectivity in killing cancer cells when compared to normal cells. Hence, all 12 Lactobacillus strains could be considered good potential probiotic candidates because of their beneficial functional bioactivities. PRACTICAL APPLICATION: The Lactobacillus strains tested in this study could be considered good potential probiotic candidates for food/feed industry because of their beneficial functional bioactivities such as good cholesterol-reducing ability, high antioxidant activity, and good and selective cytotoxic effect against cancer cells. PMID- 29023716 TI - Production of Cornstarch Granules Enriched with Quercetin Liposomes by Aggregation of Particulate Binary Mixtures Using High Shear Process. AB - : Liposomes are colloidal structures capable of encapsulating, protecting, and releasing hydrophobic bioctives, as flavonoids. Quercetin is a flavonoid with high antioxidant activity that provides benefits to health. The wet-agglomeration processes in high-shear equipment are useful to produce granules from binary mixtures, obtaining a powder with homogeneous composition and without segregation or elutriation of fine particles. In this study, the binary mixtures containing microparticles of native cornstarch and nanoparticles of quercetin liposomes were aggregated in high-shear batches, using maltodextrin solution as binder agent. The cornstarch was enriched by agglomeration with 8%, 22%, and 30% (w/w) of quercetin-loaded lyophilized liposomes and the physical properties were evaluated. The moisture of all formulations showed similar values ranging from 4.42% to 4.57%. The values of hygroscopicity (g adsorbed water/100 g of dry matter) indicated the lyophilized liposomes were able to decrease the capacity of the agglomerated cornstarch to absorb water, decreasing the possibility of microbiological contamination. The addition of quercetin-loaded lyophilized liposomes improved the flowability and turned the powder (agglomerated cornstarch) less cohesive. The pasting properties of enriched agglomerated cornstarch decreased the pasting temperature about 10 degrees C, and the cornstarch agglomerated with 8% (w/w) of quercetin-loaded lyophilized liposomes showed no significance difference in the peak viscosity. Agglomeration of cornstarch with more than 8% (w/w) lyophilized liposomes decreased the tendency of starch to retrograde, which is very interesting for food products which requires low levels of retrogradation of granules for their stability. PRACTICAL APPLICATION: This study is an unprecedent association of 2 technologies, nanoencapsulation and wet agglomeration, here used together to enrich cornstarch with quercetin. The agglomeration process was used to obtain granules of cornstarch, an ingredient extremely used in the food industry, enriched with quercetin-loaded lyophilized liposomes. The goals were both the improvement of the nutritional quality and the increase of the added value of the cornstarch. PMID- 29023717 TI - Recovery from the anatomical effects of long-term monocular deprivation in cat lateral geniculate nucleus. AB - Monocular deprivation (MD) imposed early in postnatal life elicits profound structural and functional abnormalities throughout the primary visual pathway. The ability of MD to modify neurons within the visual system is restricted to a so-called critical period that, for cats, peaks at about one postnatal month and declines thereafter so that by about 3 months of age MD has little effect. Recovery from the consequences of MD likewise adheres to a critical period that ends by about 3 months of age, after which the effects of deprivation are thought to be permanent and without capacity for reversal. The attenuation of plasticity beyond early development is a formidable obstacle for conventional therapies to stimulate recovery from protracted visual deprivation. In the current study we examined the efficacy of dark exposure and retinal inactivation with tetrodotoxin to promote anatomical recovery in the dorsal lateral geniculate nuclues (dLGN) from long-term MD started at the peak of the critical period. Whereas 10 days of dark exposure or binocular retinal inactivation were not better at promoting recovery than conventional treatment with reverse occlusion, inactivation of only the non-deprived (fellow) eye for 10 days produced a complete restoration of neuron soma size, and also reversed the significant loss of neurofilament protein within originally deprived dLGN layers. These results reveal a capacity for neural plasticity and recovery that is larger than anything previously observed following protracted MD in cat, and they highlight a possibility for alternative therapies applied at ages thought to be recalcitrant to recovery. PMID- 29023718 TI - Backscattered electron imaging and electron backscattered diffraction in the study of bacterial attachment to titanium alloy structure. AB - The application of secondary electron (SE) imaging, backscattered electron imaging (BSE) and electron backscattered diffraction (EBSD) was investigated in this work to study the bacterial adhesion and proliferation on a commercially pure titanium (cp Ti) and a Ti6Al4V alloy (Ti 64) with respect to substrate microstructure and chemical composition. Adherence of Gram-positive Staphylococcus epidermidis 11047 and Streptococcus sanguinis GW2, and Gram negative Serratia sp. NCIMB 40259 and Escherichia coli 10418 was compared on cp Ti, Ti 64, pure aluminium (Al) and vanadium (V). The substrate microstructure and the bacterial distribution on these metals were characterised using SE, BSE and EBSD imaging. It was observed that titanium alloy-phase structure, grain boundaries and grain orientation did not influence bacterial adherence or proliferation at microscale. Adherence of all four strains was similar on cp Ti and Ti 64 surfaces whilst inhibited on pure Al. This work establishes a nondestructive and straight-forward statistical method to analyse the relationship between microbial distribution and metal alloy structure. PMID- 29023719 TI - Natural variability and effects of cleaning and storage procedures on vertebral chemistry of the blacktip shark Carcharhinus limbatus. AB - Key methodological assumptions regarding the degree of natural variability and influence of sample handling and storage of elasmobranch vertebral chemistry were assessed using laser-ablation inductively coupled plasma mass spectrometry. Vertebral chemistry of juvenile blacktip sharks Carcharhinus limbatus was examined to identify whether differences existed among different regions of the vertebral column, between thoracic vertebrae of individual fish or within individual vertebrae. Additionally, the effects of bleach exposure and storage in ethanol on vertebral chemistry were compared. No significant variation in vertebral chemistry was found among different regions of the vertebral column or between thoracic vertebrae, but significant differences among transect locations within individual vertebrae were observed. The variation at all three levels appears comparable with published data on sagittal otoliths of bilaterally symmetrical teleost fishes. The experimental assessment of potential treatment effects indicated vertebral chemistry was not significantly affected by bleach or exposure to ethanol. Taken together, these results support the idea that vertebrae taken from the same region of the vertebral column can be treated as equivalent and at least certain elements remain robust to exposure to bleach and ethanol. PMID- 29023720 TI - A field test of the use of pop-off data storage tags in freshwater fishes. AB - In the present study, pop-off data storage tags (pDST) without any transmitting capabilities were attached to 118 adult salmonids in a 19 000 km2 freshwater system (Lake Ontario). The 9.3 cm long cylindrical tags were externally attached to fishes using a backpack-style harness, set to record pressure (dBar ~ depth in m) and temperature every 70 s (and at some key times, every 5 s) and programmed to release from the harness and float to the surface after c. 1 year. Recapture of the bright-orange tags for data retrieval relied on members of the public finding tags on shore, or on anglers capturing fishes with tags attached and using the contact information displayed on each tag to mail tags to the research team in exchange for a monetary reward. Thirty-seven tags were found and returned from the 118 released (31%), while 26 of the 118 tags (22%) remained scheduled to pop-off in summer 2017. Of the 37 tags returned, 23 were from wild-caught fishes (out of 88 wild-caught and tagged fishes; 26%) and yielded useful data whereas 14 were from hatchery-reared fishes that were opportunistically tagged and appear to have been unable to acclimate to life in the wild and died days to weeks after release. The field study described here thus demonstrated that pDSTs can be a viable option for collecting large amounts of high-resolution depth and temperature data for salmonids in freshwater systems. Technical challenges, limitations and unknowns related to the use of pDSTs with freshwater fishes are discussed. In addition, pDSTs are compared with alternate electronic tagging technologies and assessed for their potential as a more widespread tool in research on freshwater fishes. PMID- 29023721 TI - Plant Phenolics Extraction from Flos Chrysanthemi: Response Surface Methodology Based Optimization and the Correlation Between Extracts and Free Radical Scavenging Activity. AB - : Huaiju is one of the most famous and widely used Flos Chrysanthemi (FC) for medicinal purposes in China. Although various investigations aimed at phenolics extraction from other FC have been reported, a thorough optimization of the phenolics extraction conditions from Huaiju has not been achieved. This work applied the widely used response surface methodology (RSM) to investigate the effects of 3 independent variables including ethanol concentration (%), extraction time (min), and solvent-to-material ratio (mL/g) on the ultrasound assisted extraction (UAE) of phenolics from FC. The data suggested the optimal UAE condition was an ethanol concentration of 75.3% and extraction time of 43.5 min, whereas the ratio of solvent to material has no significant effect. When the free radical scavenging ability was used as an indicator for a successful extraction, a similar optimal extraction was achieved with an ethanol concentration of 72.8%, extraction time of 44.3 min, and the ratio of solvent to material was 29.5 mL/g. Furthermore, a moderate correlation between the antioxidant activity of TP extract and the content of extracted phenolic compounds was observed. Moreover, a well consistent of the experimental values under optimal conditions with those predicted values suggests RSM successfully optimized the UAE conditions for phenolics extraction from FC. PRACTICAL APPLICATION: The work of the research investigated the plant phenolics in Flos Chrysanthemi and antioxidant capacities. These results of this study can support the development of antioxidant additive and relative food. PMID- 29023723 TI - Total Ion Spectra versus Segmented Total Ion Spectra as Preprocessing Tools for Gas Chromatography - Mass Spectrometry Data. AB - Alignment of fire debris data from GC-MS for chemometric analysis is challenged by highly variable, uncontrolled sample and matrix composition. The total ion spectrum (TIS) obviates the need for alignment but loses all separation information. We introduce the segmented total ion spectrum (STIS), which retains the advantages of TIS while retaining some retention information. We compare the performance of STIS with TIS for the classification of casework fire debris samples. TIS and STIS achieve good model prediction accuracies of 96% and 98%, respectively. Baseline removal improved model prediction accuracies for both TIS and STIS to 97% and 99%, respectively. The importance of maintaining some chromatographic information to aid in deciphering the underlying chemistry of the results and reasons for false positive/negative results was also examined. PMID- 29023722 TI - Prevalence and clonality of synchronous primary carcinomas in the bladder and prostate. AB - Incidental prostate adenocarcinoma (IPCa) has been frequently discovered during postoperative histopathological evaluation of radical cystoprostatectomy specimens in patients with bladder cancer (BCa). However, there is currently no conclusive study addressing the clinical significance of IPCa and the clonal relatedness of IPCa and BCa. Here, we performed a retrospective single-center review of 919 BCa cases and an additional meta-analysis including a total of 19 868 individuals who underwent radical cystectomy for bladder cancer. IPCa, mostly clinically insignificant, was detected in 67 of 919 BCa patients (7.3%) and was significantly associated with greater age. In the meta-analysis, a lower prevalence was observed in Asian than in non-Asian countries (19% versus 32%), presumably due to their different rates of prostate cancer occurrence. Whole exome sequencing on matched BCa and IPCa samples unambiguously revealed independent clonal origins of the synchronous tumors. BCa and IPCa lesions from each patient displayed distinctive genomic abnormalities and largely unrelated mutational signatures of single nucleotide variations, indicating disparate mutational processes underlying bladder and prostate oncogenesis. These findings provide important insights into the incidental nature of prostate adenocarcinoma in patients with bladder cancer, and suggest that the two concurrent diseases can be managed separately. Copyright (c) 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. PMID- 29023724 TI - Immunity meets metabolism and then they start talking. PMID- 29023729 TI - Rebuttal from Ashley L. Bennett and Ian Scott Ramsey. PMID- 29023728 TI - Application of 3D Mass Spectrometry Imaging to TKIs. AB - Mass spectrometry imaging (MSI) allows visualization of endogenous and exogenous compound in tissue sections based on its molecular mass. The 3D reconstruction by MSI provides a more informative description of the tumor drug distribution compared to the high-performance liquid chromatography method, highlighting the heterogeneity of intratumor drug concentration. This additional information can be important in understanding chemoresistance to target agents. Here, we present the 3D visualization of the tyrosine kinase inhibitor (TKI), imatinib, in a xenograft model of resistant malignant pleural mesothelioma. PMID- 29023730 TI - CrossTalk opposing view: proton transfer in Hv1 utilizes a water wire, and does not require transient protonation of a conserved aspartate in the S1 transmembrane helix. PMID- 29023707 TI - Guidelines for the use of flow cytometry and cell sorting in immunological studies. PMID- 29023732 TI - Murmur intensity in adult dogs with pulmonic and subaortic stenosis reflects disease severity. AB - OBJECTIVES: The aims of this study were to determine whether murmur intensity in adult dogs with pulmonic stenosis or subaortic stenosis reflects echocardiographic disease severity and to determine whether a six-level murmur grading scheme provides clinical advantages over a four-level scheme. MATERIALS AND METHODS: In this retrospective multi-investigator study on adult dogs with pulmonic stenosis or subaortic stenosis, murmur intensity was compared to echocardiographically determined pressure gradient across the affected valve. Disease severity, based on pressure gradients, was assessed between sequential murmur grades to identify redundancy in classification. A simplified four-level murmur intensity classification scheme ('soft', 'moderate', 'loud', 'palpable') was evaluated. RESULTS: In total, 284 dogs (153 with pulmonic stenosis, 131 with subaortic stenosis) were included; 55 dogs had soft, 59 had moderate, 72 had loud and 98 had palpable murmurs. 95 dogs had mild stenosis, 46 had moderate stenosis, and 143 had severe stenosis. No dogs with soft murmurs of either pulmonic or subaortic stenosis had transvalvular pressure gradients greater than 50 mmHg. Dogs with loud or palpable murmurs mostly, but not always, had severe stenosis. Stenosis severity increased with increasing murmur intensity. The traditional six level murmur grading scheme provided no additional clinical information than the four-level descriptive murmur grading scheme. CLINICAL SIGNIFICANCE: A simplified descriptive four-level murmur grading scheme differentiated stenosis severity without loss of clinical information, compared to the traditional six-level scheme. Soft murmurs in dogs with pulmonic or subaortic stenosis are strongly indicative of mild lesions. Loud or palpable murmurs are strongly suggestive of severe stenosis. PMID- 29023731 TI - Physiological tremor increases when skeletal muscle is shortened: implications for fusimotor control. AB - KEY POINTS: In tonic, isometric, plantarflexion contractions, physiological tremor increases as the ankle joint becomes plantarflexed. Modulation of physiological tremor as a function of muscle stretch differs from that of the stretch reflex amplitude. Amplitude of physiological tremor may be altered as a function of reflex pathway gains. Healthy humans likely increase their gamma static fusimotor drive when muscles shorten. Quantification of physiological tremor by manipulation of joint angle may be a useful experimental probe of afferent gains and/or the integrity of automatic fusimotor control. ABSTRACT: The involuntary force fluctuations associated with physiological (as distinct from pathological) tremor are an unavoidable component of human motor control. While the origins of physiological tremor are known to depend on muscle afferentation, it is possible that the mechanical properties of muscle-tendon systems also affect its generation, amplification and maintenance. In this paper, we investigated the dependence of physiological tremor on muscle length in healthy individuals. We measured physiological tremor during tonic, isometric plantarflexion torque at 30% of maximum at three ankle angles. The amplitude of physiological tremor increased as calf muscles shortened in contrast to the stretch reflex whose amplitude decreases as muscle shortens. We used a published closed-loop simulation model of afferented muscle to explore the mechanisms responsible for this behaviour. We demonstrate that changing muscle lengths does not suffice to explain our experimental findings. Rather, the model consistently required the modulation of gamma-static fusimotor drive to produce increases in physiological tremor with muscle shortening - while successfully replicating the concomitant reduction in stretch reflex amplitude. This need to control gamma static fusimotor drive explicitly as a function of muscle length has important implications. First, it permits the amplitudes of physiological tremor and stretch reflex to be decoupled. Second, it postulates neuromechanical interactions that require length-dependent gamma drive modulation to be independent from alpha drive to the parent muscle. Lastly, it suggests that physiological tremor can be used as a simple, non-invasive measure of the afferent mechanisms underlying healthy motor function, and their disruption in neurological conditions. PMID- 29023734 TI - The life story from age 26 to 32: Rank-order stability and mean-level change. AB - OBJECTIVE: In this longitudinal, mixed-methods project, the primary focus was to examine the rank-order stability and mean-level change in the life story during the period of emerging adulthood to young adulthood, while also investigating how the transition to parenthood may impact the life story. METHOD: Seventy-two participants described three key life story scenes at age 26 and again at 32 (28% attrition from age 26 to 32). The narratives were coded for a range of features, including motivational themes (agency, communion), affective themes (emotional tone), an integrative meaning theme (coherent positive resolution), and a structural property (narrative complexity). RESULTS: Overall, there was moderate temporal stability and mean-level increase in several features of narrative identity over this key period. Positive changes in communion levels and overall emotional tone of life story scenes were especially evident for new parents at age 32. CONCLUSIONS: These longitudinal results suggested that adopting new social roles, in this case becoming a parent, predicted how the life story was expressed, just as they seemed to influence other levels of personality, such as traits, following the social investment principle. PMID- 29023735 TI - Shortening of an existing generic online health-related quality of life instrument for dogs. AB - OBJECTIVE: Development, initial validation and reliability testing of a shortened version of a web-based questionnaire instrument to measure generic health-related quality of life in companion dogs, to facilitate smartphone and online use. MATERIALS AND METHODS: The original 46 items were reduced using expert judgment and factor analysis. Items were removed on the basis of item loadings and communalities on factors identified through factor analysis of responses from owners of healthy and unwell dogs, intrafactor item correlations, readability of items in the UK, USA and Australia and ability of individual items to discriminate between healthy and unwell dogs. Validity was assessed through factor analysis and a field trial using a "known groups" approach. Test-retest reliability was assessed using intraclass correlation coefficients. RESULTS: The new instrument comprises 22 items, each of which was rated by dog owners using a 7-point Likert scale. Factor analysis revealed a structure with four health related quality of life domains (energetic/enthusiastic, happy/content, active/comfortable, and calm/relaxed) accounting for 72% of the variability in the data compared with 64% for the original instrument. The field test involving 153 healthy and unwell dogs demonstrated good discriminative properties and high intraclass correlation coefficients. CLINICAL SIGNIFICANCE: The 22-item shortened form is superior to the original instrument and can be accessed via a mobile phone app. This is likely to increase the acceptability to dog owners as a routine wellness measure in health care packages and as a therapeutic monitoring tool. PMID- 29023733 TI - Tonic inhibition of brown adipose tissue sympathetic nerve activity via muscarinic acetylcholine receptors in the rostral raphe pallidus. AB - KEY POINTS: A tonically active, muscarinic cholinergic inhibition of rostral raphe pallidus (rRPa) neurons influences thermogenesis of brown adipose tissue (BAT) independent of ambient temperature conditions. The tonically active cholinergic input to rRPa originates caudal to the hypothalamus. Muscarinic acetylcholine receptor (mAChR) activation in rRPa contributes to the inhibition of BAT sympathetic nerve activity (SNA) evoked by activation of neurons in the rostral ventrolateral medulla (RVLM). The RVLM is not the sole source of the muscarinic cholinergic input to rRPa. Activation of GABA receptors in rRPa does not mediate the cholinergic inhibition of BAT SNA. ABSTRACT: We sought to determine if body temperature and energy expenditure are influenced by a cholinergic input to neurons in the rostral raphe pallidus (rRPa), the site of sympathetic premotor neurons controlling thermogenesis of brown adipose tissue (BAT). Nanoinjections of the muscarinic acetylcholine receptor (mAChR) agonist, oxotremorine, or the cholinesterase inhibitor, neostigmine (NEOS), in the rRPa of anaesthetized rats decreased cold-evoked BAT sympathetic nerve activity (SNA, nadirs: -72 and -95%), BAT temperature (Tbat, -0.5 and -0.6 degrees C), expired CO2 (Exp. CO2 , -0.3 and -0.5%) and heart rate (HR, -22 and -41 bpm). NEOS into rRPa reversed the increase in BAT SNA evoked by blockade of GABA receptors in rRPa. Nanoinjections of the mAChR antagonist, scopolamine (SCOP), in the rRPa of warm rats increased BAT SNA (peak: +1087%), Tbat (+1.8 degrees C), Exp. CO2 (+0.7%), core temperature (Tcore, +0.5 degrees C) and HR (+54 bpm). SCOP nanoinjections in rRPa produced similar activations of BAT during cold exposure, following a brain transection caudal to the hypothalamus, and during the blockade of glutamate receptors in rRPa. We conclude that a tonically active cholinergic input to the rRPa inhibits BAT SNA via activation of local mAChR. The inhibition of BAT SNA mediated by mAChR in rRPa does not depend on activation of GABA receptors in rRPa. The increase in BAT SNA following mAChR blockade in rRPa does not depend on the activity of neurons in the hypothalamus or on glutamate receptor activation in rRPa. PMID- 29023736 TI - An investigation of fetal behavioural states during maternal sleep in healthy late gestation pregnancy: an observational study. AB - KEY POINTS: Fetal behavioural state in healthy late gestation pregnancy is significantly affected by maternal position overnight. Maternal left lateral position is the one most frequently adopted at sleep onset. The maternal position at sleep onset is maintained the longest overnight. Fetal state 1F is more common in maternal supine positions overnight. Fetal state 4F is less common in maternal supine sleep positions. Fetal state and maternal sleep position are independently associated with fetal heart rate variability. Maternal sleep position significantly affects fetal heart rate and heart rate variability and affects circadian fetal heart rate patterns. ABSTRACT: Fetal behavioural states (FBS) are measures of fetal wellbeing. Maternal position affects FBS with supine position being associated with an increased likelihood of fetal quiescence consistent with the human fetus adapting to a lower oxygen consuming state. Several studies have now confirmed the association between sleep position and risk of late intrauterine death. We designed this study to observe the effects of maternal sleep positions overnight in healthy late gestation pregnancy. Twenty-nine healthy women had continuous fetal ECG recordings overnight. Two blinded observers assigned fetal states in 5 min blocks. Measures of fetal heart rate variability (FHRV) were calculated from ECG beat to beat data. Maternal position was determined from infrared video recording. Compared to state 2F (active sleep), 4F (active awake-high activity) occurred almost exclusively when the mother was in a left or right lateral position. State 1F (quiet sleep) was more common when the mother was supine [odds ratio (OR) 1.30, 95% confidence interval (CI) 1.11-1.52] and less common on the maternal right side with the left being the referent position (OR 0.81, 95% CI, 0.70-0.93). State 4F was more common between 21.00 and 01.00 h than between 01.00 and 07.00 h (OR 2.83, 95% CI 2.32 3.47). In each fetal state, maternal position had significant effects on fetal heart rate and measures of FHRV. In healthy late gestation pregnancy, maternal sleep position affects FBS and heart rate variability. These effects are probably fetal adaptations to positions which may produce a mild hypoxic stress. PMID- 29023739 TI - Serum cardiac troponin I concentrations in dogs with generalised seizures. AB - OBJECTIVES: To determine if serum cardiac troponin I concentrations - measured with both a first-generation assay and a high-sensitivity assay - were greater in dogs with generalised seizures than in controls and to identify clinical variables associated with cardiac troponin I concentration. MATERIALS AND METHODS: Prospective study of 30 dogs with recent generalised seizures and 30 healthy controls. Serum cardiac troponin I concentration was measured using two commercially available assays, and the correlation of clinical factors with concentration was examined. RESULTS: Serum concentrations of cardiac troponin I were higher in dogs that had recent seizures compared to controls when measured by both assays. The predictors most clearly associated with cardiac troponin I concentration were number of seizures and age. Both predictors were positively associated with increasing concentrations of troponin I. CLINICAL SIGNIFICANCE: Serum cardiac troponin I concentration was significantly elevated in dogs that had recent generalised seizures when compared to controls, and concentrations were higher in dogs that experienced more seizures. This association may indicate that generalised seizures are associated with damage to the myocardium. PMID- 29023737 TI - Oxidative phosphorylation: regulation and role in cellular and tissue metabolism. AB - Oxidative phosphorylation provides most of the ATP that higher animals and plants use to support life and is responsible for setting and maintaining metabolic homeostasis. The pathway incorporates three consecutive near equilibrium steps for moving reducing equivalents between the intramitochondrial [NAD+ ]/[NADH] pool to molecular oxygen, with irreversible reduction of oxygen to bound peroxide at cytochrome c oxidase determining the net flux. Net flux (oxygen consumption rate) is determined by demand for ATP, with feedback by the energy state ([ATP]/[ADP][Pi ]) regulating the pathway. This feedback affects the reversible steps equally and independently, resulting in the rate being coupled to ([ATP]/[ADP][Pi ])3 . With increasing energy state, oxygen consumption decreases rapidly until a threshold is reached, above which there is little further decrease. In most cells, [ATP] and [Pi ] are much higher than [ADP] and change in [ADP] is primarily responsible for the change in energy state. As a result, the rate of ATP synthesis, plotted against [ADP], remains low until [ADP] reaches about 30 MUm and then increases rapidly with further increase in [ADP]. The dependencies on energy state and [ADP] near the threshold can be fitted by the Hill equation with a Hill coefficients of about -2.6 and 4.2, respectively. The homeostatic set point for metabolism is determined by the threshold, which can be modulated by the PO2 and intramitochondrial [NAD+ ]/[NADH]. The ability of oxidative phosphorylation to precisely set and maintain metabolic homeostasis is consistent with it being permissive of, and essential to, development of higher plants and animals. PMID- 29023738 TI - KLF2 mediates enhanced chemoreflex sensitivity, disordered breathing and autonomic dysregulation in heart failure. AB - KEY POINTS: Enhanced carotid body chemoreflex activity contributes to development of disordered breathing patterns, autonomic dysregulation and increases in incidence of arrhythmia in animal models of reduced ejection fraction heart failure. Chronic reductions in carotid artery blood flow are associated with increased carotid body chemoreceptor activity. Kruppel-like Factor 2 (KLF2) is a shear stress-sensitive transcription factor that regulates the expression of enzymes which have previously been shown to play a role in increased chemoreflex sensitivity. We investigated the impact of restoring carotid body KLF2 expression on chemoreflex control of ventilation, sympathetic nerve activity, cardiac sympatho-vagal balance and arrhythmia incidence in an animal model of heart failure. The results indicate that restoring carotid body KLF2 in chronic heart failure reduces sympathetic nerve activity and arrhythmia incidence, and improves cardiac sympatho-vagal balance and breathing stability. Therapeutic approaches that increase KLF2 in the carotid bodies may be efficacious in the treatment of respiratory and autonomic dysfunction in heart failure. ABSTRACT: Oscillatory breathing and increased sympathetic nerve activity (SNA) are associated with increased arrhythmia incidence and contribute to mortality in chronic heart failure (CHF). Increased carotid body chemoreflex (CBC) sensitivity plays a role in this process and can be precipitated by chronic blood flow reduction. We hypothesized that downregulation of a shear stress-sensitive transcription factor, Kruppel-like Factor 2 (KLF2), mediates increased CBC sensitivity in CHF and contributes to associated autonomic, respiratory and cardiac sequelae. Ventilation (Ve), renal SNA (RSNA) and ECG were measured at rest and during CBC activation in sham and CHF rabbits. Oscillatory breathing was quantified as the apnoea-hypopnoea index (AHI) and respiratory rate variability index (RRVI). AHI (control 6 +/- 1/h, CHF 25 +/- 1/h), RRVI (control 9 +/- 3/h, CHF 29 +/- 3/h), RSNA (control 22 +/- 2% max, CHF 43 +/- 5% max) and arrhythmia incidence (control 50 +/- 10/h, CHF 300 +/- 100/h) were increased in CHF at rest ( PMID- 29023740 TI - Surveillance and monitoring of oral health in elderly people. AB - Continued ageing of the global population is expected to pose significant challenges to maintaining optimum lifelong health in individuals and populations. Oral health is an essential element of general health and quality of life throughout an individual's life course, yet it is often neglected in integrated approaches to general health promotion. Surveillance and monitoring systems are essential for developing oral health policy and strategy at both national and community levels. As major oral diseases, dental caries and periodontal diseases are core indicators for surveillance at every stage of life. In addition, oral mucosal lesions and masticatory function are essential indicators, especially in an ageing population. The assessment of risk factors such as tobacco use, alcohol consumption or dietary habits (e.g., sugar intake) is also important for oral disease prevention. Although surveillance is conducted through clinical examinations (normative assessments), this method is becoming more difficult to use because of high costs and human resource shortages, even in high-income countries. Alternative and less resource-demanding approaches, such as self reported protocols, are therefore needed at the global level. The World Health Organization's (WHO) oral health surveillance and monitoring activities have evolved into the Oral Health STEPwise approach, which includes questionnaire surveys (Step 1) and clinical examinations (Step 2). Collaboration between international organisations such as the World Dental Federation (FDI), WHO and the International Association for Dental Research (IADR) is now needed to coordinate global oral health surveillance and monitoring systems. PMID- 29023741 TI - Oral healthcare systems for an ageing population: concepts and challenges. AB - Oral healthcare systems (OHCS) are designed to maintain the health and function through Communication (Health promotion and education), Prevention, Assessment and Diagnosis, and Treatment. The complexity of these OHCS functions for the ageing are described utilizing the spectrum of dependency of the Seattle Care Pathway framework. Barriers and disparities which challenge the development of OHCS for the ageing can be universal but often vary between developed and developing countries. Recognizing that oral diseases are largely preventable, strategies to improve OHCS must be targeted locally, nationally, and internationally at oral health policy, education, research, and clinical care. PMID- 29023742 TI - Oral health for healthy longevity in an ageing society: maintaining momentum and moving forward. AB - The ageing of populations worldwide is rapidly accelerating. However, the global burden of oral disease remains a critical and often underestimated problem. As ageing progresses globally, oral health maintenance becomes a matter not only of public health, but also of human rights. Therefore, in low- and middle-income countries, policymakers are seeking to realize universal health coverage even as they struggle with severe resource limitations. To achieve and maintain global oral health, we propose an ongoing global monitoring cycle consisting of the following four steps: needs assessment, implementation of appropriate health care systems and provisions, reducing the global burden of oral disease, and working to achieve a healthy ageing society. Rather than a unidirectional information flow from high income to low- and middle-income countries, the proposed system would establish a multidirectional information-sharing cycle that would benefit all countries. To make this possible, however, we must develop a standardized set of core oral health indicators that all countries use, as well as a global repository for gathering, compiling, and sharing the data. This system would allow each country to move forward at its own pace and in locally-appropriate ways, making it more effective and efficient in the long run than the current pattern of setting unrealistic goals that all countries are expected to achieve by a certain point in time. PMID- 29023743 TI - Oral health for an ageing population: the importance of a natural dentition in older adults. AB - Despite progress in dentistry, tooth loss in old age is still a reality, even more so in long-term-care residents. However, recent trends indicate that natural teeth are lost later in life. Functional decline and age-related pathologies have to be considered in oral health care for this vulnerable population. Retaining and restoring teeth and oral function in elders is important. Tooth loss significantly impairs masticatory performance, which cannot be fully restored by prosthodontic means. Hence an unconscious change in food intake occurs, often involving malnutrition and withdrawal from common meals. Poor oral appearance and bad breath may further impede social activities. Although a chewing activity may be beneficial for cognitive function, natural teeth can present a considerable risk for fragile elders, in whom aspiration of biofilm can lead to pneumonia and death. The presence of natural teeth is also correlated with higher life expectancy, but socio-economic confounding factors have to be considered. When evaluating oral health in the elderly population, standards and priorities for reporting oral health outcome measures have to be defined. Anatomical indicators such as the number of natural teeth or the presence of prostheses might be one option for reporting. However, functional indicators such as masticatory performance and patient-centred outcome measures may be more relevant. In conclusion, there is an overwhelming body of evidence that maintaining a healthy natural dentition in old age is beneficial from a structural, functional and psycho-social point of view. PMID- 29023744 TI - The relationship of oral health with general health and NCDs: a brief review. AB - Oral health is closely related to systemic health. Periodontitis, a chronic inflammatory disease which is highly prevalent worldwide, interacts with a variety of noncommunicable diseases (NCDs). It is a risk factor in the complex pathogenesis of diabetes mellitus and cardiovascular disease and plays a role in the development of endocarditis and recurrent pneumonia in elderly people. However, the available data may be interpreted in different ways, and more and better-designed studies are still needed to answer relevant questions about the causal role of periodontitis in NCDs. What is clear is that periodontitis contributes to the systemic inflammatory burden. As periodontitis shares many common risk factors with NCDs, close collaboration between physicians and dentists is needed to increase the chance of early detection and improve the prevention and control of these conditions. PMID- 29023745 TI - Prevention of tooth loss and dental pain for reducing the global burden of oral diseases. AB - Population ageing is a global phenomenon and is predicted to become one of the most significant social transformations of the 21st century. The anticipated demographic shift provides governments the opportunity to proactively align policies with the estimated demands for housing, transportation, social protection, and health and well-being. Oral health is a fundamental component of health and physical and mental well-being, and is influenced by the individual's changing experience, perceptions, expectations and ability to adapt to circumstances. As such, prevention of oral disease and maintenance of oral health contributes to the systemic health, well-being, and quality of life of older adults. Dental caries, periodontal disease, and tooth loss in older adults are global health concerns because they are highly prevalent worldwide, socio economic inequalities contribute to these diseases, many of the risk factors are modifiable, and these diseases result in compromised oral health-related quality of life. Oral care must be tailored to the needs and level of dependency of older adults through the use of evidence-based approaches and inter-professional collaboration. The persistence of between countries and within countries oral health disparities indicate that population-based policies are also needed to address the underlying social, environmental, and economic causes of oral diseases. PMID- 29023746 TI - Corrigendum. PMID- 29023747 TI - Cross-sectional study of associations between prior spontaneous abortions and preterm delivery. AB - OBJECTIVE: To evaluate associations between a history of spontaneous abortion and preterm delivery during subsequent pregnancies. METHODS: The present secondary analysis included cross-sectional survey data related to all deliveries at 103 hospitals in Tehran, Iran, between July 6 and 21, 2015. Trained midwives interviewed patients within 24 hours of delivery. Adjusted odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to investigate associations between spontaneous abortion and preterm delivery. RESULTS: Data were included from 4991 deliveries. A history of spontaneous abortion (OR 1.50, 95% CI 1.21 1.87; P=0.001) and history of recurrent spontaneous abortion (OR 3.74, 95% CI 1.90-7.37; P=0.001) were associated with increased odds of preterm delivery in comparison with no such history. Similarly, one (OR 1.33, 95% CI 1.04-1.70; P=0.023), two (OR 1.78, 95% CI 1.15-2.74; P=0.009), or at least three prior spontaneous abortions (OR 4.10, 95% CI 2.08-8.08; P=0.001) were associated with increased odds of preterm delivery compared with none. Population attributable fractions of 9.49% (95% CI 3.36-15.12) and 2.00% (95% CI 0.57-3.56) were calculated for histories of spontaneous abortion and recurrent pregnancy loss, respectively. CONCLUSION: History of spontaneous abortion and history of recurrent pregnancy loss were associated with increased odds of preterm delivery. A greater number of spontaneous abortions corresponded to greater odds of preterm delivery. PMID- 29023748 TI - What cervical screening is appropriate for women who have been vaccinated against high risk HPV? A simulation study. AB - Women vaccinated against HPV16/18 are approaching the age for cervical screening; however, an updated screening algorithm has not been agreed. We use a microsimulation model calibrated to real published data to determine the appropriate screening intensity for vaccinated women. Natural histories in the absence of vaccination were simulated for 300,000 women using 10,000 sets of transition probabilities. Vaccination with (i) 100% efficacy against HPV16/18, (ii) 15% cross-protection, (iii) 22% cross-protection, (iv) waning vaccine efficacy and (v) 100% efficacy against HPV16/18/31/33/45/52/58 was added, as were a range of screening scenarios appropriate to the UK. To benchmark cost-benefits of screening for vaccinated women, we evaluated the proportion of cancers prevented per additional screen (incremental benefit) of current cytology and likely HPV screening scenarios in unvaccinated women. Slightly more cancers are prevented through vaccination with no screening (70.3%, 95% CR: 65.1-75.5) than realistic compliance to the current UK screening programme in the absence of vaccination (64.3%, 95% CR: 61.3-66.8). In unvaccinated women, when switching to HPV primary testing, there is no loss in effectiveness when doubling the screening interval. Benchmarking supports screening scenarios with incremental benefits of >=2.0%, and rejects scenarios with incremental benefits <=0.9%. In HPV16/18-vaccinated women, the incremental benefit of offering a third lifetime screen was at most 3.3% (95% CR: 2.2-4.5), with an incremental benefit of 1.3% ( 0.3-2.8) for a fourth screen. For HPV16/18/31/33/45/52/58-vaccinated women, two lifetime screens are supported. It is important to know women's vaccination status; in these simulations, HPV16/18-vaccinated women require three lifetime screens, HPV16/18/31/33/45/52/58-vaccinated women require two lifetime screens, yet unvaccinated women require seven lifetime screens. PMID- 29023749 TI - Preparative isolation and purification of capsaicin and dihydrocapsaicin from Capsici Fructus using supercritical fluid extraction combined with high speed countercurrent chromatography. AB - BACKGROUND: Supercritical fluid extraction with CO2 (SFE-CO2 ) was utilized for extraction of capsaicin (CA) and dihydrocapsaicin (DHCA) from Capsici Fructus, and then a two-step enrichment method for separating capsaicinoids from SFE-CO2 extracts was developed. The process involved extraction with aqueous methanol and crystallization by alkali extraction and acid precipitation. Finally, a consecutive high-speed countercurrent chromatography (HSCCC) separation method was successfully applied in the purification of CA and DHCA from capsaicinoid crystal. RESULTS: The extraction pressure, extraction temperature and volume of co-solvent were optimized at 33 MPa, 41 degrees C and 75 mL, respectively, using response surface methodology; the extraction rates of CA and DHCA were about 93.18% and 93.49%, respectively. 407.43 mg capsaicinoid crystal was isolated from the SFE-CO2 extracts obtained from 100 g capsicum powder by the two-step enrichment method. About 506 mg and 184 mg CA and DHCA with purities up to 98.31% and 96.68%, respectively, were obtained from 1 g capsaicinoid crystal in one HSCCC of three consecutive sample loadings without exchanging any solvent system. CONCLUSIONS: This method comprising SFE-CO2 , a two-step enrichment and HSCCC was efficient, powerful and practical for the large-scale preparation of CA and DHCA from Capsici Fructus with high purity and high yield. (c) 2017 Society of Chemical Industry. PMID- 29023750 TI - Trends in antigen-negative red blood cell distributions by racial or ethnic groups in the United States. AB - BACKGROUND: The overall number of red blood cell (RBC) units distributed to hospitals throughout the world and in the United States has decreased lately. This study was performed to determine if the number of antigen-negative RBC units distributed to hospitals has followed this trend. STUDY DESIGN AND METHODS: Stratified by ethnicity, data on total RBC distributions and antigen-negative RBC distributions from six large blood collectors in the United States were obtained from 2009 through 2016. An antigen-negative unit was defined as a unit with a specific RBC phenotype that had been specially ordered as such by a hospital. RESULTS: Overall, 10,103,703 RBC units were distributed by these six blood collectors; 650,516 (6.4%) were distributed as antigen-negative units. While the overall number of RBCs distributed decreased by 27.2% between 2009 and 2016, the number of antigen-negative RBC distributions increased by 39.5%. In each year, the majority of the distributed antigen-negative RBCs were donated by whites. However, antigen-negative RBC units from black or African American donors were distributed in a disproportionately high fraction compared to the overall number of RBCs distributed from these donors. Most of the one through four antigen negative RBCs were donated by whites. However, as antigen matching became more extensive, the proportion of units distributed from black or African American donors increased such that they were the predominant donors of five or more antigen-negative units. CONCLUSION: Blood collectors will need to be aware of the trend of increasing antigen-negative distributions despite decreased overall distributions. PMID- 29023751 TI - The use of factorial design to evaluate the oxidation of oils containing different types of omega-3 fatty acids. AB - BACKGROUND: Omega-3 fatty acids (n3 FA) promote beneficial effects on cardiovascular diseases, but they are highly susceptible to oxidation, which leads to the formation of potentially toxic secondary products. In this study, the antioxidant capacity of natural compounds (sinapic acid and rutin) was evaluated using an accelerated model to oxidize the oils. Five inducers (temperature, Fe2+ , 2,2'-azobis(2-amidinopropane) dihydrochloride, ascorbyl palmitate and the hydrophobic 2,2'-azobis-2,4-dimethylvaleronitrile (AMVN)) were combined in a factorial design to accelerate the oxidation of three oils (flaxseed, echium and fish) containing different sources of n3 FA. RESULTS: Lipid hydroperoxide (LOOH) and thiobarbituric acid reactive substance (TBARS) concentrations estimated using the regression models did not differ from the observed values. AMVN + Fe2+ increased TBARS in all samples. CONCLUSION: The values for the oxidative markers obtained 48 h after induction were similar to those obtained when the oils were heated at 60 degrees C for 15 days. Of a number of volatile compounds formed from the oxidation of different n3 FA sources, (E,E)-2,4-heptadienal, (E,E)-2,4-decadienal, decanal, undecanal and (E) 2-undecenal were identified in all samples and could be used as more specific oxidative markers. Using the accelerated model, rutin improved the oxidative stability of fish oil, probably due to the presence of a catechol group in its chemical structure. (c) 2017 Society of Chemical Industry. PMID- 29023752 TI - A novel R3 MYB transcriptional repressor associated with the loss of floral pigmentation in Iochroma. AB - Losses of floral pigmentation represent one of the most common evolutionary transitions in flower color, yet the genetic basis for these changes has been elucidated in only a handful of cases. Here we used crossing studies, bulk segregant RNA sequencing, phylogenetic analyses and functional tests to identify the gene(s) responsible for the transition to white flowers in Iochroma loxense. Crosses between I. loxense and its blue-flowered sister species, I. cyaneum, suggested that a single locus controls the flower color difference and that the white allele causes a nearly complete loss of pigmentation. Examining sequence variation across phenotypic pools from the crosses, we found that alleles at a novel R3 MYB transcription factor were tightly associated with flower color variation. This gene, which we term MYBL1, falls into a class of MYB transcriptional repressors and, accordingly, higher expression of this gene is associated with downregulation of multiple anthocyanin pigment pathway genes. We confirmed the repressive function of MYBL1 through stable transformation of Nicotiana. The mechanism underlying the evolution of white flowers in I. loxense differs from that uncovered in previous studies, pointing to multiple mechanisms for achieving fixed transitions in flower color intensity. PMID- 29023753 TI - Postharvest monitoring of organic potato (cv. Anuschka) during hot-air drying using visible-NIR hyperspectral imaging. AB - BACKGROUND: The potential of hyperspectral imaging (500-1010 nm) was evaluated for monitoring of the quality of potato slices (var. Anuschka) of 5, 7 and 9 mm thickness subjected to air drying at 50 degrees C. The study investigated three different feature selection methods for the prediction of dry basis moisture content and colour of potato slices using partial least squares regression (PLS). RESULTS: The feature selection strategies tested include interval PLS regression (iPLS), and differences and ratios between raw reflectance values for each possible pair of wavelengths (R[lambda1 ]-R[lambda2 ] and R[lambda1 ]:R[lambda2 ], respectively). Moreover, the combination of spectral and spatial domains was tested. Excellent results were obtained using the iPLS algorithm. However, features from both datasets of raw reflectance differences and ratios represent suitable alternatives for development of low-complex prediction models. Finally, the dry basis moisture content was high accurately predicted by combining spectral data (i.e. R[511 nm]-R[994 nm]) and spatial domain (i.e. relative area shrinkage of slice). CONCLUSIONS: Modelling the data acquired during drying through hyperspectral imaging can provide useful information concerning the chemical and physicochemical changes of the product. With all this information, the proposed approach lays the foundations for a more efficient smart dryer that can be designed and its process optimized for drying of potato slices. (c) 2017 Society of Chemical Industry. PMID- 29023754 TI - Local context influences memory for emotional stimuli but not electrophysiological markers of emotion-dependent attention. AB - Emotional enhancement of free recall can be context dependent. It is readily observed when emotional and neutral scenes are encoded and recalled together in a "mixed" list, but diminishes when these scenes are encoded separately in "pure" lists. We examined the hypothesis that this effect is due to differences in allocation of attention to neutral stimuli according to whether they are presented in mixed or pure lists, especially when encoding is intentional. Using picture stimuli that were controlled for semantic relatedness, our results contradicted this hypothesis. The amplitude of well-known electrophysiological markers of emotion-related attention-the early posterior negativity (EPN), the late positive potential (LPP), and the slow wave (SW)-was higher for emotional stimuli. Crucially, the emotional modulation of these ERPs was insensitive to list context, observed equally in pure and mixed lists. Although list context did not modulate neural markers of emotion-related attention, list context did modulate the effect of emotion on free recall. The apparent decoupling of the emotional effects on attention and memory, challenges existing hypotheses accounting for the emotional enhancement of memory. We close by discussing whether findings are more compatible with an alternative hypothesis, where the magnitude of emotional memory enhancement is, at least in part, a consequence of retrieval dynamics. PMID- 29023755 TI - A Heartfelt Thanks to the Editors and Contributors of Special Issue 93:3. PMID- 29023756 TI - Working memory and attention are still impaired after three years in patients with stress-related exhaustion. AB - Cognitive impairment is one of the most pronounced symptoms reported by patients with stress-related mental health problems. Impairments related to executive function and to some extent speed and attention are therefore common in patients with stress-related burnout/exhaustion. In this paper we present a follow-up of cognitive performance in patients with stress-related exhaustion several years after they initially sought medical care. Thirty patients and 27 healthy controls, mean age 49 years (SD 6.5) and 55 years (SD 6.7) respectively, were included, all of whom had undergone baseline measurements of neuropsychological functioning. The mean follow-up time was three years. Half of the patients still reported mental health problems at follow-up and over time no major changes in cognitive performance were noted. The patients still performed significantly poorer than controls with regard to cognitive functions, mainly related to speed, attention and memory function. Long-lasting impairment of cognitive functions related to speed, attention and memory function noted in patients with stress related exhaustion should be acknowledged and taken into consideration during treatment and when discussing a return to work. Follow-up periods longer than three years are needed to explore the persistence of the cognitive impairment. PMID- 29023757 TI - Acute autoimmune hemolytic anemia due to anti-Ena autoantibody successfully treated with rituximab. AB - BACKGROUND: Autoimmune hemolytic anemia (AIHA) due to anti-Ena has been previously reported in association with massive intravascular hemolysis, disseminated intravascular coagulation, and fatal outcomes. Here we report a case of successfully treated AIHA due to anti-Ena . CASE REPORT: A 69-year-old male with a past medical history of cirrhosis due to nonalcoholic steatohepatitis status post-orthotopic liver transplant presented with 1-month history of progressive anemia. At presentation, his hemoglobin (Hb) was 5.6 g/dL, hematocrit (Hct) 16%, reticulocytes 0.3%, direct bilirubin (bili) 4 g/dL, lactate dehydrogenase 533 units/L (reference, 125-220 units/L), and haptoglobin 254 mg/dL (reference, 40-273 mg/dL). Blood bank testing revealed an autoantibody present in his plasma and a direct antiglobulin test positive for immunoglobulin G (IgC) but negative for complement. He received 1 unit of an incompatible blood group O phenotypically matched red blood cell unit. RESULTS: Over the course of the next 5 days, the Hb and Hct decreased to 4.1 g/dL and 12%, respectively, direct bili increased to 12.3 mg/day, reticulocytes slightly increased to 0.9%, and haptoglobin decreased to less than 8 mg/dL. Marrow study showed a hypercellular marrow with erythroid hyperplasia. Additional workup performed at a reference laboratory identified an anti-Ena autoantibody. He received prednisone and weekly rituximab infusions and was monitored weekly. At the 2-month visit, Hb and Hct were 10 g/dL and 32%, respectively. CONCLUSION: Unlike two of the previously reported fatal cases of AIHA with anti-Ena specificity, this 69-year-old male treated with weekly rituximab infusion underwent clinical recovery and significant anemia improvement. PMID- 29023758 TI - Biological activities of Agave by-products and their possible applications in food and pharmaceuticals. AB - Agave leaves are considered a by-product of alcoholic beverage production (tequila, mezcal and bacanora) because they are discarded during the production process, despite accounting for approximately 50% of the total plant weight. These by-products constitute a potential source of Agave extracts rich in bioactive compounds, such as saponins, phenolic compounds and terpenes, and possess different biological effects, as demonstrated by in vitro and in vivo tests (e.g. antimicrobial, antifungal, antioxidant, anti-inflammatory, antihypertensive, immunomodulatory, antiparasitic and anticancer activity). Despite their positive results in biological assays, Agave extracts have not been widely evaluated in food systems and pharmaceutical areas, and these fields represent a potential route to improve the usage of Agave plants as food additives and agents for treating medical diseases. (c) 2017 Society of Chemical Industry. PMID- 29023760 TI - Listening to teachers: Views on delivery of a classroom based sensory intervention for students with autism. AB - BACKGROUND/AIM: Occupational therapists consider the impact of autism spectrum disorder on occupational performance at school. Occupational therapists work with teachers to support student participation. Atypical sensory processing is common in children with autism. Therefore, collaborating with teachers to enable students with autism to appropriately process sensory information within classrooms may be necessary. This qualitative pilot study aimed to capture teachers' perceptions of using a Sensory Activity Schedule, a sensory based intervention, in the classroom. METHODS: A qualitative descriptive approach was used to analyse semi-structured interview responses from 19 qualified teachers who taught children with autism from seven different autism specific special schools in NSW. Teachers were asked about their motivation to complete the intervention as well as helpful and difficult aspects of the intervention. FINDINGS: Three main categories and eight sub-categories were identified from the 19 respondents who reported that helping their students was an important motivation for using a Sensory Activity Schedule as well as the opportunity to evaluate whether sensory based intervention was beneficial. Teachers reported that learning new ideas, working with an occupational therapist and seeing an increase in concentration and a reduction in undesired behaviours were positive aspects of utilising the intervention. Timing, staffing and fidelity of the intervention were areas of concern. CONCLUSION: Collaboration with classroom teachers is an essential part of school-based occupational therapy. Insights from teachers who implemented a sensory based intervention in the classroom assist occupational therapists to better support students with autism spectrum disorder in schools. PMID- 29023759 TI - Cord blood-derived T cells allow the generation of a more naive tumor-reactive cytotoxic T-cell phenotype. AB - BACKGROUND: Transplantation of hematopoietic stem cells (HSCs) from peripheral blood (PB) or cord blood (CB) is well established. HSCs from CB are associated with a lower risk of graft-versus-host disease (GVHD), but antigen-independent expanded CB- and PB-derived T cells can induce GVHD in allo-HSC recipients. CB derived cells might be more suitable for adoptive immunotherapy as they have unique T-cell characteristics. Here, we describe functional differences between CB and PB T cells stimulated with different cytokine combinations involved in central T-cell activation. STUDY DESIGN AND METHODS: Isolated CD8+ T cells from CB and PB were stimulated antigen independently with anti-CD3/CD28 stimulator beads or in an antigen-dependent manner with artificial antigen-presenting cells loaded with the HLA-A*02:01-restricted peptide of tumor-associated melanoma antigen recognized by T cells 1 (MART1). CB and PB T cells cultured in the presence of interleukin (IL)-7, IL-15, IL-12, and IL-21 were characterized for T cell phenotype and specificity, that is, by CD107a, interferon-gamma, tumor necrosis factor-alpha, and IL-2 expression. RESULTS: After antigen-independent stimulation, activated CD8+ CB T cells exhibited stronger proliferation and function than those from PB. After antigenic stimulation, MART1-reactive CB T cells were naive (CD45RA+CCR7+), cytotoxic, and highly variable in expressing homing marker CD62L. Addition of IL-21 resulted in increased T-cell proliferation, whereas supplementation with IL-12 decreased IL-21-induced expansion, but increased the functionality and cytotoxicity of CB and PB T cells. CONCLUSION: MART1-reactive CB T cells with a more naive phenotype and improved properties for homing can be generated. The results contribute to better understanding the effects on GVHD and graft versus tumor. PMID- 29023761 TI - Natural vitamin B12 and fucose supplementation of green smoothies with edible algae and related quality changes during their shelf life. AB - BACKGROUND: Some algae are an excellent sources of vitamin B12, of special interest for vegetarian/vegan consumers, and of fucose to supplement fruit and vegetable beverages such as smoothies. Nevertheless, supplementation of smoothies with algae may lead to possible quality changes during smoothie shelf life that need to be studied. Therefore, the quality changes in fresh green smoothies supplemented (2.2%) with nine edible algae (sea lettuce, kombu, wakame, thongweed, dulse, Irish moss, nori, Spirulina and Chlorella) were studied throughout 24 days at 5 degrees C. RESULTS: The initial vitamin C content - 238.7-326.0 mg kg-1 fresh weight (FW) - of a 200 g portion of any of the smoothies ensured full coverage of its recommended daily intake, and still supplying 50-60% of the recommended intake after 7 days. Chlorella and Spirulina smoothies showed the highest vitamin B12 content (33.3 and 15.3 ug kg-1 FW, respectively), while brown algae showed fucose content of 141.1-571.3 mg kg-1 FW. These vitamin B12 and fucose contents were highly maintained during shelf life. CONCLUSION: The Spirulina supplementation of a 200 g smoothie portion ensured full coverage of the recommended vitamin B12 intake, with lower vitamin C degradation, during a shelf life of 17 days. Furthermore, thongweed and kombu are also considered as excellent fucose sources with similar shelf life. (c) 2017 Society of Chemical Industry. PMID- 29023762 TI - Tolerance of olive (Olea europaea) cv Frantoio to Verticillium dahliae relies on both basal and pathogen-induced differential transcriptomic responses. AB - Verticillium wilt of olive (VWO) is one of the most serious biotic constraints for this tree crop. Our knowledge of the genetics of the tolerance/resistance to this disease is very limited. Here we show that tolerance of the cv Frantoio relies on both basal and early pathogen-induced differential transcriptomic responses. A comparative transcriptomic analysis (RNA-seq) was conducted in root tissues of cvs Frantoio (VWO-tolerant) and Picual (VWO-susceptible). RNA samples originated from roots of inoculated olive plants during the early infection stages by Verticillium dahliae (highly virulent, defoliating pathotype). A huge number of differentially expressed genes (DEGs) were found between 'Frantoio' and 'Picual' (27 312 unigenes) in the absence of the pathogen. Upon infection with V. dahliae, 'Picual' and 'Frantoio' plants responded differently too. In the early infection stages, four clusters of DEGs could be identified according to their time-course expression patterns. Among others, a pathogenesis-related protein of the Bet v I family and a dirigent-like protein involved in lignification, and several BAK1, NHL1, reactive oxygen species stress response and BAM unigenes showed noticeable differences between cultivars. Tolerance of 'Frantoio' plants to VWO is a consequence of a complex and multifaceted process which involves many plant traits. PMID- 29023763 TI - CPS49-induced neurotoxicity does not cause limb patterning anomalies in developing chicken embryos. AB - Thalidomide notoriously caused severe birth defects, particularly to the limbs, in those exposed in utero following maternal use of the drug to treat morning sickness. How the drug caused these birth defects remains unclear. Many theories have been proposed including actions on the forming blood vessels. However, thalidomide survivors also have altered nerve patterns and the drug is known for its neurotoxic actions in adults following prolonged use. We have previously shown that CPS49, an anti-angiogenic analog of thalidomide, causes a range of limb malformations in a time-sensitive manner in chicken embryos. Here we investigated whether CPS49 also is neurotoxic and whether effects on nerve development impact upon limb development. We found that CPS49 is neurotoxic, just like thalidomide, and can cause some neuronal loss late developing chicken limbs, but only when the limb is already innervated. However, CPS49 exposure does not cause defects in limb size when added to late developing chicken limbs. In contrast, in early limb buds which are not innervated, CPS49 exposure affects limb area significantly. To investigate in more detail the role of neurotoxicity and its impact on chicken limb development we inhibited nerve innervation at a range of developmental timepoints through using beta-bungarotoxin. We found that neuronal inhibition or ablation before, during or after limb outgrowth and innervation does not result in obvious limb cartilage patterning or number changes. We conclude that while CPS49 is neurotoxic, given the late innervation of the developing limb, and that neuronal inhibition/ablation throughout limb development does not cause similar limb patterning anomalies to those seen in thalidomide survivors, nerve defects are not the primary underlying cause of the severe limb patterning defects induced by CPS49/thalidomide. PMID- 29023764 TI - Liver diseases in Adult Life after Childhood Cancer in Scandinavia (ALiCCS): A population-based cohort study of 32,839 one-year survivors. AB - Information on late onset liver complications after childhood cancer is scarce. To ensure an appropriate follow-up of childhood cancer survivors and reducing late liver complications, the need for comprehensive and accurate information is presented. We evaluate the risk of liver diseases in a large childhood cancer survivor cohort. We included all 1-year survivors of childhood cancer treated in the five Nordic countries. A Cox proportional hazards model was used to estimate hospitalisation rate (hazard) ratios (HRs) for each liver outcome according to type of cancer. We used the risk among survivors of central nervous system tumour as internal reference. With a median follow-up time of 10 years, 659 (2%) survivors had been hospitalised at least once for a liver disease. The risk for hospitalisation for any liver disease was high after hepatic tumour (HR = 6.9) and leukaemia (HR = 1.7). The Danish sub-cohort of leukaemia treated with haematopoietic stem cell transplantation had a substantially higher risk for hospitalisation for all liver diseases combined (HR = 3.8). Viral hepatitis accounted for 286 of 659 hospitalisations corresponding to 43% of all survivors hospitalised for liver disease. The 20-year cumulative risk of viral hepatitis was 1.8% for survivors diagnosed with cancer before 1990 but only 0.3% for those diagnosed after 1990. The risk of liver disease was low but significantly increased among survivors of hepatic tumours and leukaemia. Further studies with focus on the different treatment modalities are needed to further strengthen the prevention of treatment-induced late liver complications. PMID- 29023765 TI - Impact of clinicopathological characteristics on the efficacy of neoadjuvant therapy in patients with human epidermal growth factor receptor-2-positive breast cancer. AB - Neoadjuvant therapy has become increasingly common in human epidermal growth factor receptor-2 (HER2)-positive breast cancer. In this study, we examined the impact of different clinicopathological characteristics on pathological complete response (pCR) in patients treated with anti-HER2 agents. The PubMed and Embase databases were searched from inception through April 2017 to identify studies that met pre-specified criteria. The odds ratios (ORs) and 95% confidence intervals (CIs) were extracted directly or were calculated with other available information. Eleven randomized controlled trials (RCTs) that involved 3,269 HER2 positive women were included in this meta-analysis. Patients with hormone receptor (HR)-negative breast cancer benefited more from anti-HER2 therapy than did patients with HR-positive tumours (OR, 2.25; 95% CI, 1.93-2.62). Furthermore, this improvement in pCR was independent of anti-HER2 agents, phase, combined chemotherapy, neoadjuvant duration, year the trials started and region where the trials were conducted. Patients with small tumours achieved greater benefits than patients with large tumours (OR, 1.25; 95% CI, 1.00-1.55). Age did not predict an additional benefit from anti-HER2 neoadjuvant treatment (OR, 1.02; 95% CI, 0.73 1.45). The impact of nodal status on pCR was dependent on the anti-HER2 agents. In conclusion, for HER2-targeted neoadjuvant treatment in breast cancer, greater benefits were achieved in patients with small HR-negative tumours compared with patients with large HR-positive tumours. These results may improve drug development and treatment strategies, economic analyses and the design and interpretation of clinical trials. PMID- 29023767 TI - Do they stay or do they go? Acoustic monitoring of whale sharks at Ningaloo Marine Park, Western Australia. AB - Whale sharks Rhincodon typus were monitored via acoustic transmitters at the northern end of Western Australia's Ningaloo Marine Park to establish the extent to which the species inhabits the region beyond the whale-shark ecotourism industry season, which usually extends from March to August in each year. Despite the vast majority (c. 98%) of photographic submissions of R. typus from Ningaloo Reef being between March and August, acoustic detections from the tagged R. typus at Ningaloo were recorded in all months of the year, but do not preclude the occurrence of extended absences. It is concluded that as a species, R. typus occurs year round at Ningaloo, where it generally remains in close proximity to the reef edge, but that some individuals move outside of the detection range of the array for extended periods. PMID- 29023766 TI - Cannibalism in non-native brown trout Salmo trutta and rainbow trout Oncorhynchus mykiss stream-dwelling populations. AB - Introduced and allopatric populations of brown trout Salmo trutta and rainbow trout Oncorhynchus mykiss were sampled in Slovenia for stable isotope analysis to assess dietary niche shifts through ontogeny and estimate the propensity for cannibalism. Both S. trutta and O. mykiss are cannibals, with higher average relative contribution of conspecific assimilated energy for S. trutta (27.9%) compared with O. mykiss (7.7%). The smallest cannibal was 166 mm in the S. trutta population and 247 mm in the O. mykiss population. PMID- 29023768 TI - Changes in circulating inflammatory markers following febrile non-haemolytic transfusion reactions to leucoreduced red cells. AB - It would be desirable to be able to distinguish fever as a result of febrile non haemolytic transfusion reactions (FNHTR) from other febrile conditions. To further characterize the inflammatory feature of FNHTR, we measured a large panel of inflammatory markers in pre- and posttransfusion plasma samples from patients with and without FNHTR following the transfusion of leucoreduced red blood cells. As FNHTR patients only displayed a significant increase in IL-6, we conclude that changes in plasma cytokine levels during FNHTR are unlikely to be used diagnostically. An incidental finding of a distinct cytokine pattern in pretransfusion samples from FNHTR patients warrants further investigations, as it might be used to characterize the nature of FNHTR and to predict the risk of these adverse events. PMID- 29023769 TI - Alcohol consumption, variability in alcohol dehydrogenase genes and risk of renal cell carcinoma. AB - Alcohol consumption has been associated inversely with renal cell carcinoma (RCC) risk; however, no study has examined effect modification by germline variation in alcohol-metabolizing genes. We investigated whether the association between alcohol intake and RCC risk is modulated by germline variants in alcohol dehydrogenase genes in a large case-control study. Data from 652 RCC cases and 1,366 non-cancer controls were analyzed. Alcohol intake was assessed using a standardized risk factor questionnaire. Three previously genotyped polymorphisms in ADH6 and ADH7 with the TaqMan assay were examined. Odds ratios (ORs) and 95% confidence interval (CI) were calculated using logistic regression, adjusting for covariates. Compared to non-drinkers, ever consumption of alcohol was associated with lower RCC risk (OR = 0.52, 95% CI = 0.42-0.65). Analysis with cubic spline regression curve showed a "J-shaped" relationship between alcohol drinks/day and RCC risk, such that there was no added benefit against RCC for consumption of more than two drinks/day. We observed effect modification by variation in rs1154454 (ADH7) (pinteraction = 0.007); a per unit increase in alcohol drink/day was associated with 35% lower RCC risk among non-minor allele carriers, a 27% lower risk among those who carry one copy of the minor allele, but no association was observed among those with two copies of the minor allele. These findings indicate that alcohol consumption is associated with lower RCC risk. Consuming more than two drinks a day does not confer additional protection against RCC. The association between alcohol intake and RCC risk appears to be modulated by inter-individual germline variation in alcohol-metabolizing genes. PMID- 29023770 TI - C-C motif chemokine ligand 23 abolishes ER stress- and LPS-induced reduction in proliferation of bovine endometrial epithelial cells. AB - To reduce embryonic losses in domestic animals for economic production of livestock meat and milk, chemokines and their receptors are required for proper implantation and placentation during early pregnancy. In this study, we investigated the effects of C-C-motif chemokine ligand 23 (CCL23) on the proliferation of bovine endometrial (BEND) epithelial cells. CCL23 treatment improved BEND cell proliferation by enhancing PCNA and cyclin D1 expression via activation of the PI3K/AKT and MAPK signaling pathways. In addition, a combination of CCL23 and tunicamycin reversed the ER stress-induced reduction in cell proliferation and the decreased expression of UPR-mediated signaling proteins, including IRE1alpha, PERK, and ATF6alpha. Moreover, it regulated the lipopolysaccharide-induced inflammation in BEND cells by inhibiting the expression of pro-inflammatory cytokines (IL-6 and IL-8), and by restoring intracellular Ca2+ levels. These findings demonstrate that CCL23 improves endometrial development and uterine receptivity required for implantation and placentation during early pregnancy. PMID- 29023771 TI - Visibility of fiducial markers used for image-guided radiation therapy on optical coherence tomography for registration with CT: An esophageal phantom study. AB - PURPOSE: Optical coherence tomography (OCT) is of interest to visualize microscopic esophageal tumor extensions to improve tumor delineation for radiation therapy (RT) planning. Fiducial marker placement is a common method to ensure target localization during planning and treatment. Visualization of these fiducial markers on OCT permits integrating OCT and computed tomography (CT) images used for RT planning via image registration. We studied the visibility of 13 (eight types) commercially available solid and liquid fiducial markers in OCT images at different depths using dedicated esophageal phantoms and evaluated marker placement depth in clinical practice. MATERIALS AND METHODS: We designed and fabricated dedicated esophageal phantoms, in which three layers mimic the anatomical wall structures of a healthy human esophagus. We successfully implanted 13 commercially available fiducial markers that varied in diameter and material property at depths between 0.5 and 3.0 mm. The resulting esophageal phantoms were imaged with OCT, and marker visibility was assessed qualitatively and quantitatively using the contrast-to-background-noise ratio (CNR). The CNR was defined as the difference between the mean intensity of the fiducial markers and the mean intensity of the background divided by the standard deviation of the background intensity. To determine whether, in current clinical practice, the implanted fiducial markers are within the OCT visualization range (up to 3.0 mm depth), we retrospectively measured the distance of 19 fiducial markers to the esophageal lumen on CT scans of 16 esophageal cancer patients. RESULTS: In the esophageal phantoms, all the included fiducial markers were visible on OCT at all investigated depths. Solid fiducial markers were better visible on OCT than liquid fiducial markers with a 1.74-fold higher CNR. Although fiducial marker identification per type and size was slightly easier for superficially implanted fiducial markers, we observed no difference in the ability of OCT to visualize the markers over the investigated depth range. Retrospective distance measurements of 19 fiducial markers on the CT scan of esophageal cancer patients showed that 84% (distance from the closest border of the marker to the lumen) and 53% (distance from the center of the marker to the lumen) of the fiducial markers were located within the OCT visualization range of up to 3.0 mm. CONCLUSIONS: We studied the visibility of eight types of commercially available fiducial markers at different depths on OCT using dedicated esophageal phantoms. All tested fiducial markers were visible at depths <=3.0 mm and most, but not all, clinically implanted markers were at a depth accessible to OCT. Consequently, the use of fiducial markers as a reference for OCT to CT registration is feasible. PMID- 29023773 TI - Motive-goal congruence moderates the use of automatic self-regulation. AB - OBJECTIVE: We tested whether the fit between individuals' motives and goal properties predicts efficiency of implicit self-regulation. METHOD: Participants' (German university students; Mage = 22; 64% female) implicit motives measurement (Multi-Motive Grid) was followed by assessment of implicit self-regulation in differently framed tasks. In Study 1 (N = 45), positive implicit evaluations of stimuli relating to an achievement goal (studying) were used as an indicator of implicit self-regulation. Study 2 (N = 70) framed a laboratory task as either achievement or power related, thus experimentally controlling the goal's properties, and assessed implicit evaluations for task-related stimuli with an evaluative priming paradigm. Study 3 (N = 67) contrasted playing a game framed as agency related (achievement, power) with a control condition. Implicit evaluations of task-related stimuli were assessed as an indicator of self regulation with an approach/avoidance task. RESULTS: In Study 1, implicit positive evaluations of an achievement goal were positively related to participants' achievement motive. Because of similarities between achievement and power, implicit positive evaluations of task-related stimuli were positively related to the achievement motive in both conditions of Study 2. In Study 3, positive implicit evaluations of the task were positively related to the agency motives only in the agency condition. CONCLUSIONS: Congruence between individuals' implicit motives and goal properties boosts implicit self regulation, thus identifying a promising predictor for success and failure in self-regulation that potentially mediates effects of goal-motive fit on goal pursuit. PMID- 29023772 TI - Negative modulation of the GABAA rho1 receptor function by l-cysteine. AB - l-Cysteine is an endogenous sulfur-containing amino acid with multiple and varied roles in the central nervous system, including neuroprotection and the maintenance of the redox balance. However, it was also suggested as an excitotoxic agent implicated in the pathogenesis of neurological disorders such as Parkinson's and Alzheimer's disease. l-Cysteine can modulate the activity of ionic channels, including voltage-gated calcium channels and glutamatergic NMDA receptors, whereas its effects on GABAergic neurotransmission had not been studied before. In the present work, we analyzed the effects of l-cysteine on responses mediated by homomeric GABAA rho1 receptors, which are known for mediating tonic gamma-aminobutyric acid (GABA) responses in retinal neurons. GABAA rho1 receptors were expressed in Xenopus laevis oocytes and GABA-evoked chloride currents recorded by two-electrode voltage-clamp in the presence or absence of l-cysteine. l-Cysteine antagonized GABAA rho1 receptor-mediated responses; inhibition was dose-dependent, reversible, voltage independent, and susceptible to GABA concentration. Concentration-response curves for GABA were shifted to the right in the presence of l-cysteine without a substantial change in the maximal response. l-Cysteine inhibition was insensitive to chemical protection of the sulfhydryl groups of the rho1 subunits by the irreversible alkylating agent N-ethyl maleimide. Our results suggest that redox modulation is not involved during l-cysteine actions and that l-cysteine might be acting as a competitive antagonist of the GABAA rho1 receptors. PMID- 29023776 TI - Improving Therapeutics to Better Care for Older Adults and the Young: Report From the American College of Clinical Pharmacology Workshop. PMID- 29023775 TI - Prenatal sonographic monitoring of progressive cardiac damages caused by anti-Ro antibodies: A case report. AB - Maternal autoantibodies to Ro/SSA are often linked to congenital heart block and rarely associated with structural defects. We describe the case of a fetus with anti-Ro-mediated second-degree block at 19 weeks, which progressed to a complete block, fibroelastosis, atrioventricular valve insufficiency, and semilunar valve stenosis/insufficiency at 20, 22, 24, and 26 weeks, respectively, although the fetus received transplacental anti-arrhythmic drugs. The 2150-g fetus was vaginally delivered at 35 weeks. An external pacemaker was inserted immediately after birth and replaced with permanent pacemaker at the age of 3 months. The newborn has had a good outcome with well-controlled heart rate. PMID- 29023777 TI - Self- and informant perceptions of psychopathic traits in relation to the triarchic model. AB - OBJECTIVE: The validity of self-report psychopathy measures may be undermined by characteristics thought to be defining features of the construct, including poor self-awareness, pathological lying, and impression management. The current study examined agreement between self- and informant perceptions of psychopathic traits captured by the triarchic model (Patrick, Fowler, & Krueger, 2009) and the extent to which psychopathic traits are associated with socially desirable responding. METHOD: Participants were undergraduate roommate dyads (N = 174; Mage = 18.9 years; 64.4% female; 59.8% Caucasian) who completed self- and informant reports of boldness, meanness, and disinhibition. RESULTS: Self-reports of psychopathic traits reasonably aligned with the perceptions of informants (rs = .36-.60), and both predicted various types of antisocial behaviors, although some associations were only significant for monomethod correlations. Participants viewed by informants as more globally psychopathic did not engage in greater positive impression management. However, this response style significantly correlated with self- and informant-reported boldness, suppressing associations with antisocial behavior. CONCLUSIONS: These findings suggest that participants are willing and able to disclose psychopathic personality traits in research settings under conditions of confidentiality. Nonetheless, accounting for response style is potentially useful when using self-report measures to examine the nature and correlates of psychopathic traits. PMID- 29023774 TI - Transmission of a common intestinal neoplasm in zebrafish by cohabitation. AB - Intestinal neoplasms are common in zebrafish (Danio rerio) research facilities. These tumours are most often seen in older fish and are classified as small cell carcinomas or adenocarcinomas. Affected fish populations always contain subpopulations with preneoplastic lesions, characterized by epithelial hyperplasia or inflammation. Previous observations indicated that these tumours are unlikely caused by diet, water quality or genetic background, suggesting an infectious aetiology. We performed five transmission experiments by exposure of naive fish to affected donor fish by cohabitation or exposure to tank effluent water. Intestinal lesions were observed in recipient fish in all exposure groups, including transmissions from previous recipient fish, and moribund fish exhibited a higher prevalence of neoplasms. We found a single 16S rRNA sequence, most similar to Mycoplasma penetrans, to be highly enriched in the donors and exposed recipients compared to unexposed control fish. We further tracked the presence of the Mycoplasma sp. using a targeted PCR test on individual dissected intestines or faeces or tank faeces. Original donor and exposed fish populations were positive for Mycoplasma, while corresponding unexposed control fish were negative. This study indicates an infectious aetiology for these transmissible tumours of zebrafish and suggests a possible candidate agent of a Mycoplasma species. PMID- 29023778 TI - The importance of prenatal 3-dimensional sonography in a case of a segmental overgrowth syndrome with unclear chromosomal microarray results. AB - PIK3CA-related overgrowth spectrum, caused by mosaic mutations in the PIK3CA gene, is associated with regional or generalized asymmetric overgrowth of the body or a body part in addition to other clinical findings. Three-dimensional ultrasonography (3-D US) has the capability to display structural abnormalities in soft tissues or other organs, thereby facilitating identification of segmental overgrowth lesions. We present a case suspected of having a segmental overgrowth disorder based on 3-D US, whose chromosomal microarray result was abnormal, but apparently was not the cause of the majority of the fetus's clinical features. PMID- 29023779 TI - A new system for classifying tooth, root and canal anomalies. AB - Understanding the normal anatomical features as well as the more unusual developmental anomalies of teeth, roots and root canals is essential for successful root canal treatment. In addition to various types of root canal configuration and accessory canal morphology, a wide range of developmental tooth, root and canal anomalies exists, including C-shaped canals, dens invaginatus, taurodontism, root fusion, dilacerations and palato-gingival grooves. There is a direct association between developmental anomalies and pulp and periradicular diseases that usually require a multidisciplinary treatment approach to achieve a successful outcome. A number of classifications have categorized tooth, root and canal anomalies; however, several important details are often missed making the classifications less than ideal and potentially confusing. Recently, a new coding system for classifying root, root canal and accessory canal morphology has been introduced. The purpose of this article is to introduce a new system for classifying tooth, root and canal anomalies for use in research, clinical practice and training, which can serve as complementary codes to the recently described system for classifying root, as well as main and accessory canal morphology. PMID- 29023780 TI - Quantitative analysis of multiple elements in healthy and remodeled epithelium from human upper airway mucosa using nuclear microscopy. AB - Elements are vital in airway mucosal physiology and pathology, but their distribution and levels in the mucosa remain unclear. This study uses the state of-the-art nuclear microscopy facility to map and quantify multiple elements in the histology sections of nasal mucosa from patients with nasal polyps or inverted papilloma. Our results demonstrate that P and Ca are the most abundant elements in mucosa and their distinct difference between epithelial and subepithelial regions; more importantly, our results reveal decreased amounts of Cu and Zn in the remodeled epithelium as compared to the normal epithelium. These findings suggest that Cu and Zn may be beneficial targets to regulate aberrant epithelial remodeling in airway inflammation. PMID- 29023781 TI - Cleaning of used rotary nickel-titanium files in an ultrasonic bath by locally intensified acoustic cavitation. AB - AIM: To compare the pre-sterilization cleaning of rotary Ni-Ti files of different sizes previously used a. ex vivo and b. clinically by a washer-disinfector, a regular ultrasonic bath, and the same ultrasonic bath in combination with a recently developed cavitation intensifying method. METHODOLOGY: Two sets of two hundred rotary Ni-Ti files, one previously used ex vivo and another one used clinically, were collected from the undergraduate and postgraduate clinics of the Academic Centre for Dentistry Amsterdam (ACTA). The instruments were immersed in an enzymatic solution and subsequently cleaned either by a washer-disinfector, a regular ultrasonic bath combined with a glass beaker, the same bath combined with a beaker lined with two cavitation intensifying sheets or with two standard plastic sheets. The positive control consisted of used files that did not undergo any cleaning and the negative control included new unused files. The instruments were then stained to reveal remaining protein material and scored under a stereoscopic microscope. The results were analysed by nonparametric statistical tests (alpha = 0.05). RESULTS: No significant difference was found between the combination of the ultrasonic bath and the regular glass beaker and the same ultrasonic bath with the beaker lined with the cavitation intensifying sheets. The washer-disinfector left significantly more debris compared to the latter group when clinically used files were evaluated (P <= 0.001). The effect of instrument size on cleaning was not consistent. CONCLUSION: None of the tested methods was able to remove all residual protein material from the files; however, it could be noted that this study did not follow the reprocessing protocol provided by the manufacturer. PMID- 29023782 TI - Perceptions of animal-assisted interventions: The influence of attitudes toward companion animals. AB - OBJECTIVE: We tested whether people are prone toward positive perceptions of Animal-Assisted Interventions (AAIs). We additionally evaluated whether this effect is stronger for people who have positive attitudes toward companion animals. METHOD: We presented 210 participants with fictitious news reports, each describing a study of an AAI or a control intervention. Participants rated the news reports on their credibility, acceptability, and general appeal and completed a measure of attitudes toward companion animals. RESULTS: Individuals with positive attitudes toward companion animals evaluated AAIs as more credible, acceptable, and positive than did individuals with negative attitudes toward companion animals. There was no difference in how people with positive and negative attitudes toward companion animals evaluated control treatments. CONCLUSION: We found that individuals with positive attitudes toward companion animals perceived AAIs as more credible, acceptable, and positive, relative to individuals with more negative attitudes toward companion animals. PMID- 29023783 TI - Melatonin application in targeting oxidative-induced liver injuries: A review. AB - It is believed that oxidative stress is a key causing factor of liver damage induced by a variety of agents, and it is a major contributing factor in almost all conditions compromising liver function, including ischemia-reperfusion injury (IRI), nonalcoholic fatty liver disease (NAFLD), nonalcoholic steatohepatitis (NASH), liver fibrosis, liver cirrhosis, and hepatocellular carcinoma (HCC). Liver is the organ that high concentration of melatonin (N-acetyl-5 methoxytryptamine) accumulates, and it is the sole organ where circulating melatonin is metabolized. Melatonin is one of the best antioxidants that protects liver, and its metabolites also have antioxidative function. Melatonin exerts its antioxidative function directly through its radical scavenging ability and indirectly through stimulation of antioxidant enzymes. The antioxidative response from melatonin in liver affects from various factors, including its dosage, route, time and duration of administration, the type of oxidative-induced agent and species aging. This indoleamine is also an effective and promising antioxidative choice for targeting liver IRI, NAFLD, NASH, fibrosis, cirrhosis, and HCC. PMID- 29023785 TI - CNS synapses are stabilized trans-synaptically by laminins and laminin interacting proteins. AB - The retina expresses several laminins in the outer plexiform layer (OPL), where they may provide an extracellular scaffold for synapse stabilization. Mice with a targeted deletion of the laminin beta2 gene (Lamb2) exhibit retinal disruptions: photoreceptor synapses in the OPL are disorganized and the retinal physiological response is attenuated. We hypothesize that laminins are required for proper trans-synaptic alignment. To test this, we compared the distribution, expression, association and modification of several pre- and post-synaptic elements in wild type and Lamb2-null retinae. A potential laminin receptor, integrin alpha3, is at the presynaptic side of the wild-type OPL. Another potential laminin receptor, dystroglycan, is at the post-synaptic side of the wild-type OPL. Integrin alpha3 and dystroglycan can be co-immunoprecipitated with the laminin beta2 chain, demonstrating that they may bind laminins. In the absence of the laminin beta2 chain, the expression of many pre-synaptic components (bassoon, kinesin, among others) is relatively undisturbed although their spatial organization and anchoring to the membrane is disrupted. In contrast, in the Lamb2-null, beta dystroglycan (beta-DG) expression is altered, co-localization of beta-DG with dystrophin and the glutamate receptor mGluR6 is disrupted, and the post-synaptic bipolar cell components mGluR6 and GPR179 become dissociated, suggesting that laminins mediate scaffolding of post-synaptic components. In addition, although pikachurin remains associated with beta-DG, pikachurin is no longer closely associated with mGluR6 or alpha-DG in the Lamb2-null. These data suggest that laminins act as links among pre- and post-synaptic laminin receptors and alpha-DG and pikachurin in the synaptic space to maintain proper trans-synaptic alignment. PMID- 29023784 TI - Plasma membrane Ca2+ -ATPase 1 is required for maintaining atrial Ca2+ homeostasis and electrophysiological stability in the mouse. AB - KEY POINTS: The role of plasma membrane Ca2+ -ATPase 1 (PMCA1) in Ca2+ homeostasis and electrical stability in atrial tissue has been investigated at both organ and cellular levels in mice with cardiomyocyte-specific deletion of PMCA1 (PMCA1cko ) The PMCA1cko hearts became more susceptible to atrial arrhythmic stress conditions than PMCA1loxP/loxP hearts. PMCA1 deficiency alters cellular Ca2+ homeostasis under both baseline and stress conditions. PMCA1 is required for maintaining cellular Ca2+ homeostasis and electrical stability in murine atria under stress conditions. ABSTRACT: To determine the role of plasma membrane Ca2+ -ATPase 1 (PMCA1) in maintaining Ca2+ homeostasis and electrical stability in the atrium under physiological and stress conditions, mice with a cardiomyocyte-specific deletion of PMCA1 (PMCA1cko ) and their control littermates (PMCA1loxP/loxP ) were studied at the organ and cellular levels. At the organ level, the PMCA1cko hearts became more susceptible to atrial arrhythmias under rapid programmed electrical stimulation compared with the PMCA1loxP/loxP hearts, and such arrhythmic events became more severe under Ca2+ overload conditions. At the cellular level, the occurrence of irregular-type action potentials of PMCA1cko atrial myocytes increased significantly under Ca2+ overload conditions and/or at higher frequency of stimulation. The decay of Na+ /Ca2+ exchanger current that followed a stimulation protocol was significantly prolonged in PMCA1cko atrial myocytes under basal conditions, with Ca2+ overload leading to even greater prolongation. In conclusion, PMCA1 is required for maintaining Ca2+ homeostasis and electrical stability in the atrium. This is particularly critical during fast removal of Ca2+ from the cytosol, which is required under stress conditions. PMID- 29023786 TI - Response to flecainide test in Andersen-Tawil syndrome with incessant ventricular tachycardia. PMID- 29023787 TI - Percutaneous transapical approach and transcatheter closure for ventricular tachycardia ablation. AB - In patients with mechanical aortic and mitral valve prosthesis, left ventricular endocardial ablation via retrograde transaortic or antegrade transmitral approach carry high risk of catheter entrapment and death. In such cases, ablation can be performed via ventricular transseptal or transapical approach. Transapical approach, with the ease of catheter maneuverability and better endocardial contact, may be performed surgically or percutaneously. In this case report, we describe a patient with both aortic and mitral mechanical prosthesis who underwent ventricular tachycardia ablation via percutaneous transapical endocardial approach with the use of closure device. PMID- 29023788 TI - New initiative: Patient and clinical education (PACE) pages. PMID- 29023789 TI - Evaluation of the efficiency of three extraction conditions for the immunochemical detection of allergenic soy proteins in different food matrices. AB - BACKGROUND: Recent studies have shown the need to improve soy allergen extraction using different extraction conditions to ensure more accurate results in allergen detection. This study investigated some of these extraction conditions to confirm that these methods, especially ultrasound-assisted extraction (UAE) and the use of Laemmli buffer instead of the conventional extraction with phosphate-buffered saline (PBS), could be helpful in improving the extraction step in allergen detection. RESULTS: Higher total soluble protein was obtained in all samples extracted with Laemmli buffer alone and in combination with ultrasound. For immunochemical detection of soy proteins by enzyme-linked immunosorbent assay (ELISA), comparable detection was observed in extracts from all extraction conditions in all commercial samples with the exception of table cracker and veggie burger, where significantly higher detection was seen in extracts from Laemmli buffer only. For the dry mix and cookie samples, the degree of soy protein detection with ELISA varied among the different extraction conditions, but overall, extraction with only Laemmli buffer showed higher detection. CONCLUSION: Laemmli buffer with conventional extraction and UAE may be better alternatives or additional extraction methods in soy allergen detection. Different food matrices performed differently (whether it was for the recovery of total proteins or detection by ELISA) under different extraction conditions. (c) 2017 Society of Chemical Industry. PMID- 29023791 TI - Application of computed tomography and stereolithography to correct a complex angular and torsional limb deformity in a donkey. AB - OBJECTIVE: To report the evaluation, surgical planning, and outcome for correction of a complex limb deformity in the tibia of a donkey using computed tomographic (CT) imaging and a 3D bone model. STUDY DESIGN: Case report. ANIMALS: A 1.5-year-old, 110 kg donkey colt with an angular and torsional deformity of the right pelvic limb. METHODS: Findings on physical examimation included a severe, complex deformity of the right pelvic limb that substantially impeded ambulation. Both hind limbs were imaged via CT, and imaging software was used to characterize the bone deformity. A custom stereolithographic bone model was printed for preoperative planning and rehersal of the surgery. A closing wedge ostectomy with de-rotation of the tibia was stabilized with 2 precontoured 3.5-mm locking compression plates. Clinical follow-up was available for 3.5 years postoperatively. RESULTS: CT allowed characterization of the angular and torsional bone deformity of the right tibia. A custom bone model facilitated surgical planning and rehearsal of the procedure. Tibial corrective ostectomy was performed without complication. Postoperative management included physical rehabilitation to help restore muscular function and pelvic limb mechanics. Short term and long-term follow-up confirmed bone healing and excellent clinical function. CONCLUSION: CT imaging and stereolithography facilitated the evaluation and surgical planning of a complex limb deformity. This combination of techniques may improve the accuracy of the surgeons' evaluation of complex bone deformities in large animals, shorten operating times, and improve outcomes. PMID- 29023790 TI - Adult multipotent stromal cell cryopreservation: Pluses and pitfalls. AB - Study and clinical testing of adult multipotent stromal cells (MSCs) are central to progressive improvements in veterinary regenerative medicine. Inherent limitations to long-term culture preclude use for storage. Until cell line creation from primary isolates becomes routine, MSC stasis at cryogenic temperatures is required for this purpose. Many protocols and reagents, including cryoprotectants, used for veterinary MSCs are derived from those for human and rodent cells. Dissimilarities in cryopreservation strategies play a role in variable MSC behaviors. Familiarity with contemporary cryopreservation reagents and processes is essential to an appreciation of their impact on MSC survival and post-cryopreservation behavior. In addition to these points, this review includes a brief history and description of current veterinary stem cell regulation. PMID- 29023792 TI - Rebuttal from Thomas E. DeCoursey. PMID- 29023793 TI - CrossTalk proposal: Proton permeation through HV 1 requires transient protonation of a conserved aspartate in the S1 transmembrane helix. PMID- 29023794 TI - Attenuation of oxidative stress and artificial wound closure in C2C12 myoblasts induced by sequential extracts of Boerhavia diffusa. AB - OBJECTIVES: Whole plants of Boerhavia diffusa L. are widely used medicine in Ghana and other tropical countries, for the treatment of wounds and other ailments. The aim of the study was to determine the ability of sequential extracts of B. diffusa to influence oxidation and wound closure in myoblast cells in vitro. METHODS: Sequential extracts were prepared from the whole plant using four solvents of increasing polarity (hexane, ethyl acetate, methanol and water). Cytotoxicity was determined using the sulforhodamine B staining assay, phase contrast microscopy, plasDIC microscopy and live-dead staining. Extracts were tested for their ability to reduce 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH)-induced oxidation and mediate cell migration after artificial wound generation in C2C12 myoblast cells using the scratch wound assay. KEY FINDINGS: All extracts indicated negligible cytotoxicity (IC50 > 100 MUg/ml), and microscopic evaluation showed no difference from negative controls. AAPH induced a 2.87-fold increase in reactive oxygen species compared to the negative control. Pretreatment with 100 MUg/ml of the extracts reduced AAPH-induced oxidation to 1.70-fold of the untreated controls (P < 0.001). Wound closures in the methanol and water extract treatments were 18.08% and 20.76% higher than the negative control, respectively (P < 0.01). CONCLUSIONS: These findings indicate that the hexane, methanol and water extracts of B. diffusa whole plant promote artificial wound healing and protection against oxidation in vitro and therefore warrant further research into its mechanisms of wound healing. PMID- 29023795 TI - Real-Time ECG Simulation for Hybrid Mock Circulatory Loops. AB - Classically, mock circulatory loops only simulate mechanical properties of the circulation. To connect the hydraulic world with electrophysiology, we present a real-time electrical activity model of the heart and show how to integrate this model into a real-time mock loop simulation. The model incorporates a predefined conduction pathway and a simplified volume conductor to solve the bidomain equations and the forward problem of electrocardiography, resulting in a physiological simulation of the electrocardiogram (ECG) at arbitrary electrode positions. A complete physiological simulation of the heart's excitation would be too CPU intensive. Thus, in our model, complexity was reduced to allow real-time simulation of ECG-triggered medical systems in vitro; this decreases time and cost in the development process. Conversely, the presented model can still be adapted to various pathologies by locally changing the properties of the heart's conduction pathway. To simulate the ECG, the heart is divided into suitable areas, which are innervated by the hierarchically structured conduction system. To distinguish different cardiac regions, a segmentation of the heart was performed. In these regions, Prim's algorithm was applied to identify the directed minimal spanning trees for conduction orientation. Each node of the tree was assigned to a cardiac action potential generated by its hybrid automaton to represent the heart's conduction system by the spatial distribution of action potentials. To generate the ECG output, the bidomain equations were implemented and a simple model of the volume conductor of the body was used to solve the forward problem of electrocardiography. As a result, the model simulates potentials at arbitrary electrode positions in real-time. To verify the developed real-time ECG model, measurements were made within a hybrid mock circulatory loop, including a simple ECG-triggered ventricular assist device control. The model's potential value is to simulate physiological and pathological behavior for hardware-in-the-loop testing of medical devices in an ECG-triggered scenario. PMID- 29023796 TI - Hemodynamic parameters and baroreflex sensitivity during head-up tilt test in patients with neurally mediated syncope. AB - BACKGROUND: We aimed to investigate differences in hemodynamic parameters and the role of baroreflex sensitivity (BRS) in patients with a history of neurally mediated syncope (NMS) compared with a control group. METHODS: Hemodynamic parameters and BRS were continuously measured noninvasively using a Finometer at rest and during passive head-up tilt test (HUT) in patients with a history of NMS (n = 55) and a control group (n = 77). The tilting period was divided into pretest (resting supine position), initial (first 3 minutes of tilting), last (last 3 minutes of tilting), and recovery (3 minutes after tilting was complete) periods. RESULTS: Decrease in systolic blood pressure (- 14.7 +/- 15.7 mm Hg vs - 7.6 +/- 14.3 mm Hg, P < 0.01) was more prominent and increase in total systemic peripheral resistance was significantly smaller (67.6 +/- 418.7 dyn.s/cm5 vs 189.4 +/- 261.0 dyn.s/cm5 , P = 0.04) from the initial to the last period of HUT in the patient group compared with the control group. BRS was significantly higher during the pretest period (20.1 +/- 10.9 ms/mm Hg vs 13.0 +/- 8.1 ms/mm Hg, P < 0.01) in the patient group, while the decrease in BRS from the pretest to the initial period was greater (-8.5 +/- 6.0 ms/mm Hg vs - 3.2 +/- 4.1 ms/mm Hg, P = 0.01). CONCLUSIONS: Dysfunctional BRS in response to orthostatic stress might be involved in pathological autonomic cardiac modulation of NMS. PMID- 29023799 TI - miR-214 activates TP53 but suppresses the expression of RELA, CTNNB1, and STAT3 in human cervical and colorectal cancer cells. AB - High Mobility Group AT-hook 1 (HMGA1) was identified as a target of miR-214 in human cervical and colorectal cancers (CaCx and CRC) in a previous study. While the expression of miR-214 remains suppressed, HMGA1 behaves as a potent oncogene and plays crucial roles in several aberrant signalling pathways by interacting with intermediates like RELA, CTNNB1, STAT3, and TP53 in CaCx and CRC. Hypothetically, miR-214 should be able to regulate the stabilization of some of these intermediates through the regulation of HMGA1. This was assessed by ectopically expressing miR-214 or complementarily, by inhibiting the expression of HMGA1. In promoter luciferase assays, miR-214 inhibited NF-kappaB and Wnt activities but elevated TP53 activity in cancer cells. Further, miR-214 suppressed the expression of HMGA1, RELA, CTNNB1, and STAT3 while elevating TP53 levels, similar to when small interfering RNA (siRNA) against HMGA1 was used, as revealed by Western blotting. It is suggested that poor expression of miR-214, commonly reported in CaCx and CRC tissues, may not only result in the sustained expression of HMGA1 but also that of RELA, CTNNB1, and STAT3, and a congruent suppression of TP53 during cancer initiation/progression. These several states are, however, reversed when miR-214 is reintroduced and could explain the tumour suppressive functions observed in earlier studies. Further studies are, however, required to reveal how microRNA-mediated regulation of HMGA1 expression may affect individual signalling pathways in CaCx and CRC. Current results reveal that miR-214 is not only able to regulate the expression of its direct target, HMGA1, but also that of a few signalling intermediates like TP53, RELA, CTNNB1, and STAT3, with which HMGA1 interacts. These intermediates play crucial roles in signalling pathways commonly deregulated in human CaCx and CRC. Hence, it is proposed that miR-214 might act as a tumour suppressor by regulating several aberrant signalling pathways through HMGA1. This knowledge has the potential to help design novel therapeutic strategies in CaCx and CRC. PMID- 29023800 TI - To pace or not to pace: a pilot study of four- and five-gaited Icelandic horses homozygous for the DMRT3 'Gait Keeper' mutation. AB - The Icelandic horse is a breed known mainly for its ability to perform the ambling four-beat gait 'tolt' and the lateral two-beat gait pace. The natural ability of the breed to perform these alternative gaits is highly desired by breeders. Therefore, the discovery that a nonsense mutation (C>A) in the DMRT3 gene was the main genetic factor for horses' ability to perform gaits in addition to walk, trot and canter was of great interest. Although several studies have demonstrated that homozygosity for the DMRT3 mutation is important for the ability to pace, only about 70% of the homozygous mutant (AA) Icelandic horses are reported to pace. The aim of the study was to genetically compare four- and five-gaited (i.e. horses with and without the ability to pace) AA Icelandic horses by performing a genome-wide association (GWA) analysis. All horses (n = 55) were genotyped on the 670K Axiom Equine Genotyping Array, and a GWA analysis was performed using the genabel package in r. No SNP demonstrated genome-wide significance, implying that the ability to pace goes beyond the presence of a single gene variant. Despite its limitations, the current study provides additional information regarding the genetic complexity of pacing ability in horses. However, to fully understand the genetic differences between four- and five-gaited AA horses, additional studies with larger sample materials and consistent phenotyping are needed. PMID- 29023798 TI - Intrathecal antibody distribution in the rat brain: surface diffusion, perivascular transport and osmotic enhancement of delivery. AB - KEY POINTS: It is unclear precisely how macromolecules (e.g. endogenous proteins and exogenous immunotherapeutics) access brain tissue from the cerebrospinal fluid (CSF). We show that transport at the brain-CSF interface involves a balance between Fickian diffusion in the extracellular spaces at the brain surface and convective transport in perivascular spaces of cerebral blood vessels. Intrathecally-infused antibodies exhibited size-dependent access to the perivascular spaces and tunica media basement membranes of leptomeningeal arteries. Perivascular access and distribution of full-length IgG could be enhanced by intrathecal co-infusion of hyperosmolar mannitol. Pores or stomata present on CSF-facing leptomeningeal cells ensheathing blood vessels in the subarachnoid space may provide unique entry sites into the perivascular spaces from the CSF. These results illuminate new mechanisms likely to govern antibody trafficking at the brain-CSF interface with relevance for immune surveillance in the healthy brain and insights into the distribution of therapeutic antibodies. ABSTRACT: The precise mechanisms governing the central distribution of macromolecules from the cerebrospinal fluid (CSF) to the brain and spinal cord remain poorly understood, despite their importance for physiological processes such as antibody trafficking for central immune surveillance, as well as several ongoing intrathecal clinical trials. In the present study, we clarify how IgG and smaller single-domain antibodies (sdAb) distribute throughout the whole brain in a size-dependent manner after intrathecal infusion in rats using ex vivo fluorescence and in vivo three-dimensional magnetic resonance imaging. Antibody distribution was characterized by diffusion at the brain surface and widespread distribution to deep brain regions along the perivascular spaces of all vessel types, with sdAb accessing a four- to seven-fold greater brain area than IgG. Perivascular transport involved blood vessels of all caliber and putative smooth muscle and astroglial basement membrane compartments. Perivascular access to smooth muscle basement membrane compartments also exhibited size-dependence. Electron microscopy was used to show stomata on leptomeningeal coverings of blood vessels in the subarachnoid space as potential access points allowing substances in the CSF to enter the perivascular space. Osmolyte co-infusion significantly enhanced perivascular access of the larger antibody from the CSF, with intrathecal 0.75 m mannitol increasing the number of perivascular profiles per slice area accessed by IgG by ~50%. The results of the present study reveal potential distribution mechanisms for endogenous IgG, which is one of the most abundant proteins in the CSF, as well as provide new insights with respect to understanding and improving the drug delivery of macromolecules to the central nervous system via the intrathecal route. PMID- 29023801 TI - Influence of genotype and crop year in the chemometrics of almond and pistachio oils. AB - BACKGROUND: Almond and pistachio oils can be considered as interesting products to produce and commercialize owing to their health-promoting properties. However, these properties are not consistent because of the differences that appear in oils as a result of the genotype and the crop year. The analysis of these variations and their origin is decisive in ensuring the commercial future prospects of these nut oils. RESULTS: Although significant variability has been reported in almond and pistachio oils as a result of the crop year and the interaction between crop year and genotype, the genotype itself remains the main factor determining oil chemometrics. Oil fatty acid profile has been mainly determined by the genotype, with the exception of palmitic fatty acid in pistachio oil. However, the crop year affects the concentration of some minor components of crucial nutritional interest as total polyphenols and phytosterols. CONCLUSION: Regarding reported differences in oil, some almond and pistachio genotypes should be prioritized for oil extraction. Breeding programmes focused on the improvement of specific characteristics of almond and pistachio oils should focus on chemical parameters mainly determined by the genotype. (c) 2017 Society of Chemical Industry. PMID- 29023802 TI - A novel 12-bp indel polymorphism within the GDF9 gene is significantly associated with litter size and growth traits in goats. PMID- 29023804 TI - Apnea induction for invasive lung function testing in infant olive baboons: Comparison of intravenous propofol versus hyperventilation. AB - BACKGROUND: In various types of pulmonary research, pulmonary function testing (PFT) is performed to quantify the severity of lung disease. Induction of apnea and positive pressure ventilation are required for accurate PFT measurements in non-cooperative subjects. We compared two methods of apnea induction in infant olive baboons (Papio anubis). METHODS: Pulmonary function testing results were compared during apnea induced by hyperventilation (CO2 washout) vs. intravenous propofol (1 dose 10 mg/kg). PFT was evaluated using a hot-wire pneumotachometer incorporated within an Avea ventilator in nine 1-month-old baboons. RESULTS: Propofol induced apnea faster and more reliably. In both groups, PFT values passed the statistical equivalence test and were not significantly different (Student's t-test). There was a trend toward less data variability after propofol administration. CONCLUSIONS: Intravenous propofol was non-inferior to CO2 washout for apnea induction in infant olive baboons. Propofol induced apnea faster and more reliably and yielded less variable PFT results. PMID- 29023803 TI - HBeAg levels at week 24 predict response to 8 years of tenofovir in HBeAg positive chronic hepatitis B patients. AB - BACKGROUND: Hepatitis B e antigen (HBeAg) seroconversion is a treatment endpoint for HBeAg-positive CHB, and a necessary precursor to HBsAg loss. Biomarkers that predict serological outcomes would be useful. AIM: To evaluate the utility of measuring HBeAg levels for predicting HBeAg seroconversion and HBsAg loss under long-term tenofovir (TDF) therapy. METHODS: A total of 266 patients were enrolled into a phase III study of TDF vs adefovir (ADV) for 48 weeks in HBeAg-positive patients, followed by open-label TDF up to 384 weeks. Serum HBeAg levels were measured for subjects with samples available at both baseline and week 24 of treatment (n = 200). Analysis compared subjects who achieved HBeAg seroconversion by week 384 vs no HBeAg seroconversion. RESULTS: HBeAg seroconversion rate was 52% by week 384. Time to HBeAg seroconversion was 80 weeks (IQR: 36-162). HBeAg decline at week 24 was associated with HBeAg seroconversion (1.63 vs 0.90 log10 PEIU/mL, P = .002). The optimal threshold for identifying HBeAg seroconversion was HBeAg decline >=2.2 log10 PEIU/mL at week 24, with HBeAg seroconversion achieved by 76% of patients, compared to 44% if HBeAg decline <2.2 log10 (P < .0001). HBeAg decline >=2.2 log10 PEIU/mL at week 24 was associated with HBsAg loss in genotype A or D patients (38% vs 15%, P = .03). Precore/basal core promotor variants were associated with lower baseline HBeAg levels, but not HBeAg seroconversion. CONCLUSION: Decline in HBeAg levels by week 24 was associated with HBeAg seroconversion and HBsAg loss in HBeAg-positive chronic hepatitis B patients treated with long-term TDF. PMID- 29023806 TI - The percutaneous toxicokinetics of VX in a damaged skin porcine model and the evaluation of WoundStatTM as a topical decontaminant. AB - This study used a damaged skin, porcine model to evaluate the in vivo efficacy of WoundStatTM for the decontamination of superficial, nerve agent-contaminated wounds. Anaesthetized animals were randomly assigned to either control (n = 7), no decontamination (n = 12) or WoundStatTM (n = 12) treatment groups. Pigs were exposed to a 5* LD50 dose of neat, radiolabelled S-[2-(diisopropylamino)ethyl]-O ethyl methyl-phosphonothioate (VX; or equivalent volume of sterile saline for the control group) via an area of superficially damaged skin on the ear. WoundStatTM was applied at 30 seconds post-exposure to assigned animals. The VX contaminant (or saline) and decontaminant remained in place for the duration of the study (up to 6 hours). Physiological parameters and signs of intoxication were recorded during the exposure period. Skin and organ samples were taken post mortem for 14 C-VX distribution analyses. Blood samples were taken periodically for toxicokinetic and whole-blood acetylcholinesterase (AChE) activity analyses. VX exposure was accompanied by a rapid decrease in AChE activity in all animals, regardless of decontamination. However, decontamination significantly improved survival rate and time and reduced the severity of signs of intoxication. In addition, the distribution of 14 C-VX in key internal organs and post mortem blood samples was significantly lower in the WoundStatTM treatment group. This study demonstrates that WoundStatTM may be a suitable medical countermeasure for increasing both survival rate and time following VX exposure. The results also suggest that AChE activity is not a useful prognostic indicator. PMID- 29023805 TI - Intracranial source activity (eLORETA) related to scalp-level asymmetry scores and depression status. AB - Frontal EEG alpha asymmetry provides a promising index of depression risk, yet very little is known about the neural sources of alpha asymmetry. To identify these sources, this study examined alpha asymmetry using a distributed inverse solution: exact low resolution brain electromagnetic tomography (eLORETA). Findings implicated a generator in lateral midfrontal regions that contributed to both surface asymmetry and depression risk. Participants with any lifetime history of depressive episodes were characterized by less left than right activity in the precentral gyrus and midfrontal gyrus. Anhedonia accounted for a significant portion of the relationship between alpha asymmetry and lifetime major depressive disorder. Results are suggestive of convergence between motivational and capability models of asymmetry and replicate results from experimental studies in a large resting-state data set. The capability model of frontal alpha asymmetry is contextualized in terms of motor preparedness following emotional mobilization. PMID- 29023807 TI - Application of rape pod sealants to reduce adverse environmental impacts. AB - BACKGROUND: Rape (Brassica napus L.) is a major global oilseed crop characterized by its high potential as an alimentary oil and in biodiesel production. The two most popular pod sealants (PS) used to reduce rape pod shattering are products in the pinolene range (di-1-p-menthene) and latex polymer products. Reports on the effective preservation of seed yield by these products are fairly contradictory. With this in mind, an experimental PS (PS4) that contained the active agents acrylic and trisiloxane was developed. RESULTS: Comparative experimental trials of the developed PS4 and three other PS (PS1, PS2 and PS3) containing active agents that are generally used for sealant production were conducted. The studies showed that the static and dynamic surface tension of PS4 was the lowest at the same concentration (2.0 g kg-1 ), consequently demonstrating the lowest spray drift. The chemical substances from PS had not penetrated the rape seeds in any of the PSs. CONCLUSION: The results indicate that treatment with PS4 exerts a beneficial effect in reducing rape seed yield loss (68-104 kg ha-1 in 2014 and 194-305 kg ha-1 in 2015) compared to other investigated PS. (c) 2017 Society of Chemical Industry. PMID- 29023808 TI - Enhancement of the water solubility and antioxidant activity of hesperidin by chitooligosaccharide. AB - BACKGROUND: Hesperidin is a natural product and a strong antioxidant with potential applications in various food and pharmaceutical products. However, its poor water solubility greatly limits its applications. RESULTS: In this study, chitooligosaccharide (COS) was applied to prepare a stable complex with hesperidin (Hesp-COS) via the spray-drying method at 100 degrees C for 20 min. The resultant complex was characterized by Fourier transformation infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy and proton nuclear magnetic resonance spectroscopy. It was demonstrated that the aromatic rings of hesperidin interacted with COS through hydrogen bonding and formed Hesp COS complex. As a result, both the water solubility and antioxidant activity of Hesp-COS were higher than that of the free hesperidin. CONCLUSION: The preparation conditions of Hesp-COS in this study were efficient and produced an increment in both the water solubility and antioxidant activity of hesperidin. (c) 2017 Society of Chemical Industry. PMID- 29023809 TI - A nucleotide substitution in exon 8 of the glucosylceramidase beta gene is associated with Gaucher disease in sheep. PMID- 29023810 TI - Development of functional extruded snacks by utilizing paste shrimp (Acetes spp.): process optimization and quality evaluation. AB - BACKGROUND: Functional extruded snacks were prepared using paste shrimp powder (Acetes spp.), which is rich in protein. The process variables required for the preparation of extruded snacks was optimized using response surface methodology. Extrusion temperature (130-144 degrees C), level of Acetes powder (100-200 g kg 1 ) and feed moisture (140-200 g kg-1 ) were selected as design variables, and expansion ratio, porosity, hardness, crispness and thiobarbituric acid reactive substance value were taken as the response variables. RESULTS: Extrusion temperature significantly influenced all the response variables, while Acetes inclusion influenced all variables except porosity. Feed moisture content showed a significant quadratic effect on all responses and an interactive effect on expansion ratio and hardness. Shrimp powder incorporation increased the protein and mineral content of the final product. The extruded snack made with the combination of extrusion temperature 144.59 degrees C, feed moisture 178.5 g kg 1 and Acetes inclusion level 146.7 g kg-1 was found to be the best one based on sensory evaluation. CONCLUSION: The study suggests that use of Acetes species for the development of extruded snacks will serve as a means of utilization of Acetes as well as being a rich source of proteins for human consumption, which would otherwise remain unexploited as a by-catch. (c) 2017 Society of Chemical Industry. PMID- 29023811 TI - Placental growth factor inhibition targets pulmonary angiogenesis and represents a therapy for hepatopulmonary syndrome in mice. AB - : Hepatopulmonary syndrome (HPS) is a severe complication of cirrhosis with increased risk of mortality. Pulmonary microvascular alterations are key features of HPS; but underlying mechanisms are incompletely understood, and studies on HPS are limited to rats. Placental growth factor (PlGF), a proangiogenic molecule that is selectively involved in pathological angiogenesis, may play an important role in HPS development; however, its role has never been investigated. In this study, we validated an HPS model by common bile duct ligation (CBDL) in mice, investigated the kinetic changes in pulmonary angiogenesis and inflammation during HPS development, and provide evidence for a novel therapeutic strategy by targeting pathological angiogenesis. Mice with CBDL developed hypoxemia and intrapulmonary shunting on a background of liver fibrosis. Pulmonary alterations included increased levels of proangiogenic and inflammatory markers, which was confirmed in serum of human HPS patients. Increased PlGF production in HPS mice originated from alveolar type II cells and lung macrophages, as demonstrated by immunofluorescent staining. Dysfunctional vessel formation in CBDL mice was visualized by microscopy on vascular corrosion casts. Both prophylactic and therapeutic anti-PlGF (alphaPlGF) antibody treatment impeded HPS development, as demonstrated by significantly less intrapulmonary shunting and improved gas exchange. alphaPlGF treatment decreased endothelial cell dysfunction in vivo and in vitro and was accompanied by reduced pulmonary inflammation. Importantly, alphaPlGF therapy did not affect liver alterations, supporting alphaPlGF's ability to directly target the pulmonary compartment. CONCLUSION: CBDL in mice induces HPS, which is mediated by PlGF production; alphaPlGF treatment improves experimental HPS by counteracting pulmonary angiogenesis and might be an attractive therapeutic strategy for human HPS. (Hepatology 2017). PMID- 29023812 TI - Polycystic liver disease: Hepatic venous outflow obstruction lesions of the noncystic parenchyma have major consequences. AB - : In patients with polycystic liver disease (PLD), development of cysts induces hepatic venous outflow obstruction (HVOO) and parenchymal modifications, challenging the paradigm of a normal noncystic liver parenchyma. The aims were to reappraise the pathology of the noncystic parenchyma, by focusing on HVOO lesions; and to investigate the association with outflow obstruction at imaging and perioperative course after liver resection. This is a retrospective study conducted in one tertiary center between 1993 and 2014. PLD patients (n = 125) who underwent resection (n = 90) or transplantation (n = 35) were included. HVOO parenchymal lesions were assessed for all patients and a liver congestion score was built. Imaging was analysed for 45 patients with computed tomography scan, and perioperative course was assessed in resected patients. At pathology, 92% of patients had HVOO lesions, with sinusoidal dilatation being the most common feature. HVOO was more severe in patients who underwent transplantation compared to liver resection, as assessed by the congestion score. At imaging, all patients had HVOO with at least two hepatic veins involved. Mosaic enhancement pattern of the parenchyma was associated with the severity of hepatic vein obstruction (P = 0.045) and the compression of the inferior vena cava (P = 0.014). In case of liver resection, intraoperative course was characterized by hemorrhage, related to HVOO at imaging. Ascites (44%) and liver failure (9%) in the postoperative period were associated with blood losses and transfusions. CONCLUSION: Hepatic venous outflow obstruction, including development of venous collaterality and parenchymal changes, is frequent in PLD and has major consequences on intraoperative bleeding and postoperative ascites and liver failure. Hepatic venous outflow obstruction should be taken into account to choose the most appropriate surgical treatment. (Hepatology 2017). PMID- 29023814 TI - Oral bleeding associated with palatine erosion in the cat. PMID- 29023815 TI - Polysaccharides in Spirulina platensis Improve Antioxidant Capacity of Chinese Style Sausage. AB - : This study examined the effect of Spirulina platensis polysaccharides (SPP) at 0.1%, 0.25%, and 0.5% (wt/wt) of Chinese-style sausages on lipid peroxidation, microbiological and sensory properties during 24 d stored at 4 degrees C. During the storage, pH, lightness (L* ) values, DPPH radical scavenging activity and sensory scores decreased with time and TBARS, TVB-N, mesophilic, and psychrotrophic total viable counts increased. However, the magnitude of the changes was attenuated with the addition of SPP as compared to control. Samples containing SPP had significantly (P <= 0.05) higher DPPH radical scavenging activity and lower TBARS values compared with the control, and the antioxidant effect was dose-dependent. The addition of 0.5% SPP maintained stable redness (a* ) values of sausages, although there was no positive effect on the microbiological status. Moreover, the addition of SPP prevented the decrease of aroma, flavor and sensory acceptance of samples. The results suggested incorporation of SPP could decrease lipid peroxidation and improve sensory properties of Chinese-style sausage. PRACTICAL APPLICATION: There is a great need for adding natural antioxidants to healthier meat and meat products. Spirulina platensis polysaccharides (SPP) had strong antioxidant activity. The addition of SPP to Chinese-style pork sausage could inhibit lipid peroxidation, to extend the shelf life of meat products. SPP were very potential to be used to replace synthetic antioxidants in meat and meat products. PMID- 29023813 TI - Dual catenin loss in murine liver causes tight junctional deregulation and progressive intrahepatic cholestasis. AB - : beta-Catenin, the downstream effector of the Wnt signaling, plays important roles in hepatic development, regeneration, and tumorigenesis. However, its role at hepatocyte adherens junctions (AJ) is relatively poorly understood, chiefly due to spontaneous compensation by gamma-catenin. We simultaneously ablated beta- and gamma-catenin expression in mouse liver by interbreeding beta-catenin-gamma catenin double-floxed mice and Alb-Cre transgenic mice. Double knockout mice show failure to thrive, impaired hepatocyte differentiation, cholemia, ductular reaction, progressive cholestasis, inflammation, fibrosis, and tumorigenesis, which was associated with deregulation of tight junctions (TJ) and bile acid transporters, leading to early morbidity and mortality, a phenotype reminiscent of progressive familial intrahepatic cholestasis (PFIC). To address the mechanism, we specifically and temporally eliminated both catenins from hepatocytes using adeno-associated virus 8 carrying Cre-recombinase under the thyroid-binding globulin promoter (AAV8-TBG-Cre). This led to a time-dependent breach of the blood-biliary barrier associated with sequential disruption of AJ and TJ verified by ultrastructural imaging and intravital microscopy, which revealed unique paracellular leaks around individual hepatocytes, allowing mixing of blood and bile and leakage of blood from one sinusoid to another. Molecular analysis identified sequential losses of E-cadherin, occludin, claudin-3, and claudin-5 due to enhanced proteasomal degradation, and of claudin-2, a beta catenin transcriptional target, which was also validated in vitro. CONCLUSION: We report partially redundant function of catenins at AJ in regulating TJ and contributing to the blood-biliary barrier. Furthermore, concomitant hepatic loss of beta- and gamma-catenin disrupts structural and functional integrity of AJ and TJ via transcriptional and posttranslational mechanisms. Mice with dual catenin loss develop progressive intrahepatic cholestasis, providing a unique model to study diseases such as PFIC. (Hepatology 2018;67:2320-2337). PMID- 29023816 TI - Effects of dietary hop (Humulus lupulus L.) beta-acids on quality attributes, composition and oxidative stability of pork meat. AB - BACKGROUND: The effects of dietary levels of hop beta-acids on physical attributes, lipid oxidation and chemical composition of pork meat were evaluated. Thirty-two castrated male pigs obtained from a complete block design feeding experiment (6.23 +/- 0.42 kg initial body weight (BW) to 20.45 +/- 0.95 kg final BW) and fed diets supplemented with 0, 120, 240 or 360 mg kg-1 hop beta-acids during 35 days were slaughtered to sample longissimus dorsi muscle for meat analysis. RESULTS: No effects (P > 0.05) of dietary hop beta-acids were observed on meat physical attributes. Quadratic effects (P < 0.05) of hop beta-acids were observed on lipid and protein contents and on thiobarbituric acid-reactive substance (TBARS) values of meatballs, whose equations allowed the estimation of dietary hop beta-acid levels of 176, 169 and 181 mg kg-1 to provide up to 16.20% lipid reduction, 1.95% protein accretion and 23.31% TBARS reduction respectively. CONCLUSION: Dietary hop beta-acids fed to pigs might reduce lipid, increase protein and reduce lipid oxidation without affecting physical attributes of the pork meat. (c) 2017 Society of Chemical Industry. PMID- 29023817 TI - Changes in polyphenol profile of dried apricots containing SO2 at various concentrations during storage. AB - BACKGROUND: Changes in polyphenols have important effects on the quality (especially color) and health benefits of dried apricots. SO2 concentration, storage and the activities of polyphenol oxidase (PPO) and phenylalanine ammonia lyase (PAL) were factors which had significant effects on polyphenols. Polyphenol profile and activities of PPO and PAL in sulfured dried apricots (SDAs, 0, 451, 832, 2112 and 3241 mg SO2 kg-1 ) were monitored during storage at 4, 20 and 30 degrees C for 379 days for the first time. RESULTS: Even the lowest SO2 concentration (451 mg kg-1 ) was sufficient to inactivate PPO during the entire storage period. However, while SO2 led to the increase in PAL activity of the samples (r = 0.767) before storage, PAL activities of SDAs decreased during storage. After 90 days of storage, PAL activity was determined in only non sulfured dried apricots (NSDAs) and dried apricots containing 451 mg SO2 kg-1 . Although the major polyphenol in NSDAs was epicatechin (611.4 mg kg-1 ), that in SDAs was chlorogenic acid (455-1508 mg kg-1 ), followed by epicatechin (0-426.8 mg kg-1 ), rutin (148.9-477.3 mg kg-1 ), ferulic acid (23.3-55.3 mg kg-1 ) and gallic acid (2.4-43.6 mg kg-1 ). After storage at 30 degrees C for 379 days, the major polyphenol in SDAs was gallic acid (706-2324 mg kg-1 ). However, the major polyphenol in NSDAs did not change after storage. The highest total polyphenol content was detected in SDAs containing 2112 mg SO2 kg-1 and stored at 30 degrees C. CONCLUSION: To produce dried apricots having high polyphenol content, ~2000 mg SO2 kg-1 should be used. Low storage temperature (<30 degrees C) was not necessary for the protection of polyphenols. (c) 2017 Society of Chemical Industry. PMID- 29023818 TI - Commentary on Montag et al. (2017): The Importance of CBPR in FASD Prevention with American Indian Communities. PMID- 29023820 TI - Neuron-Specific Enolase: Is It Enough? PMID- 29023819 TI - Nonalcoholic fatty liver disease impairs expression of the type II inositol 1,4,5 trisphosphate receptor. AB - : Nonalcoholic fatty liver disease (NAFLD) is the most prevalent liver disease worldwide. It may result in several types of liver problems, including impaired liver regeneration (LR), but the mechanism for this is unknown. Because LR depends on calcium signaling, we examined the effects of NAFLD on expression of the type II inositol 1,4,5-trisphosphate receptor (ITPR2), the principle calcium release channel in hepatocytes. ITPR2 promoter activity was measured in Huh7 and HepG2 cells. ITPR2 and c-Jun protein levels were evaluated in Huh7 cells, in liver tissue from a rat model of NAFLD, and in liver biopsy specimens of patients with simple steatosis and nonalcoholic steatohepatitis (NASH). LR was assessed in wild-type and Itpr2 knockout (Itpr2-/- ) mice following 67% hepatectomy. Cell proliferation was examined in ITPR2-knockout HepG2 cells generated by the CRISPR/Cas9 system. c-Jun dose dependently decreased activity of the human ITPR2 promoter. c-Jun expression was increased and ITPR2 was decreased in fat-loaded Huh7 cells and in livers of rats fed a high-fat, high-fructose diet. Overexpression of c-Jun reduced protein and mRNA expression of ITPR2 in Huh7 cells, whereas knockdown of c-Jun prevented the decrease of ITPR2 in fat-loaded Huh7 cells. ITPR2 expression was decreased and c-Jun was increased in liver biopsies of patients with steatosis and NASH compared to controls. ITPR2-knockout cells exhibited less nuclear calcium signaling and cell proliferation than control cells. LR assessed by Ki-67 and proliferating cell nuclear antigen was markedly decreased in Itpr2-/- mice. CONCLUSION: Fatty liver induces a c-Jun mediated decrease in ITPR2 in hepatocytes. This may account for the impaired LR that occurs in NAFLD. (Hepatology 2017). PMID- 29023821 TI - Optimization of coronary sinus lead placement targeted to the longest right-to left delay in patients undergoing cardiac resynchronization therapy: The Optimal Pacing SITE 2 (OPSITE 2) acute study and protocol. AB - AIMS: Left ventricular (LV) lead positioning at the site of delayed electrical activation is associated with better response to cardiac resynchronization therapy (CRT). We hypothesized that a long electrical conduction delay between right ventricular (RV) and coronary sinus (CS) leads during RV pacing (RLD index) is correlated with a better clinical outcome METHODS AND RESULTS: RLD is measured intraprocedurally, during RV pacing, as the time interval between the intracardiac electrograms of RV and CS leads. Initially, we did a prove-of concept, feasibility, acute study in 97 patients who underwent CRT implantation. The CS lead position was assessed in the 40 degrees right anterior oblique and 40 degrees left anterior oblique views and assigned to one of 11 prespecified segments of a schematic eyeball depiction of the LV walls. Acute outcomes were QRS width during biventricular (BIV) pacing. The longest RLD were found in the basal and mid lateral segments; these accounted for 82% and 78%, respectively, of the total QRS width (%RLD). %RLD was inversely correlated with BIV-paced QRS (P = 0.0001). A similar slope was present either in the 78 patients with preserved atrioventricular (AV) conduction and in the 19 without AV conduction (- 0.34 vs - 0.27, P = 0.7). CONCLUSION: We showed that RLD can be used to guide lead placement at the time of CRT implantation and that it is correlated with BIV-QRS width, an indirect predictor of clinical outcome. Based on these findings we started the prospective, multicenter Optimal Pacing SITE 2 (OPSITE 2) trial with the objective to demonstrate a relationship between RLD and clinical outcomes assessed as death, hospitalization for heart failure, New York Heart Association class, and clinical composite score. The protocol is provided. PMID- 29023823 TI - Is attention enhanced following performance errors? Testing the adaptive control hypothesis. AB - The present study tested whether people adaptively sharpen attentional focus following performance mistakes, as predicted by current theories of cognitive control. Participants completed a reverse Stroop task in which target stimuli were preceded by an informative spatial cue. Cue validity and Stroop interference effects on performance were robust, but neither effect was altered by commission of an error on the prior trial, as predicted by the adaptive control model. Likewise, a prior error did not enhance cue-evoked spatial asymmetries in EEG, nor did it enhance validity effects on neural responses evoked by targets. Instead, errors were followed by poorer overall performance and generalized arousal, as measured by generally suppressed EEG alpha power in postresponse and cue-to-target intervals following errors compared to correct responses. Results support an alternative theory that post-error changes in neural activity and performance reflect arousal, orienting, or cognitive bottlenecking rather than adaptive control of attention. PMID- 29023822 TI - The context of coping: a qualitative exploration of underlying inequalities that influence health services support for people living with long-term conditions. AB - Coping with chronic illness encapsulates both practical and emotional aspects of living life in relation to one's long-term health condition(s). Dominant health psychology approaches for understanding coping, which underpin a more recent policy discourse on 'self-management', focus sharply on the person affected by illness and potentially mask the influence of overarching social structure. In this paper we draw on qualitative interviews with 48 people living with long-term conditions (LTCs), in order to highlight the role that structural configurations such as healthcare systems may play in either helping or hindering people's efforts to cope with chronic illness. We argue that coping is a social process in which health and related services, situated within their wider political-economic contexts, play an active role in shaping people's attempts to live well with LTCs. More specifically, health systems are sites of social and cultural capital exchange that can differentially mobilise coping resources through access, continuity of care, and coordination across services. Whilst it is essential to recognise the personal agency of people living with chronic illness, it is also vital to acknowledge the underlying inequalities that affect the ways in which services can support such resourcefulness. PMID- 29023825 TI - GenIce: Hydrogen-Disordered Ice Generator. AB - GenIce is an efficient and user-friendly tool to generate hydrogen-disordered ice structures. It makes ice and clathrate hydrate structures in various file formats. More than 100 kinds of structures are preset. Users can install their own crystal structures, guest molecules, and file formats as plugins. The algorithm certifies that the generated structures are completely randomized hydrogen-disordered networks obeying the ice rule with zero net polarization. (c) 2017 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc. PMID- 29023826 TI - Cystic fibrosis transmembrane conductance regulator: Actin(g) as a master regulator of cholangiocyte function. PMID- 29023824 TI - Cholangiocyte autophagy contributes to hepatic cystogenesis in polycystic liver disease and represents a potential therapeutic target. AB - : Polycystic liver disease (PLD) is a group of genetic disorders with limited treatment options and significant morbidity. Hepatic cysts arise from cholangiocytes exhibiting a hyperproliferative phenotype. Considering that hyperproliferation of many cell types is associated with alterations in autophagy, we hypothesized that autophagy is altered in PLD cholangiocytes, contributes to hepatic cystogenesis, and might represent a potential therapeutic target. We employed functional pathway cluster analysis and next-generation sequencing, transmission electron microscopy, immunofluorescence confocal microscopy, and western blotting to assess autophagy in human and rodent PLD cholangiocytes. A three-dimensional culture model was used to study the effects of molecular and pharmacologic inhibition of autophagy on hepatic cystogenesis in vitro, and the polycystic kidney disease-specific rat, an animal model of PLD, to study the effects of hydroxychloroquine, a drug that interferes with the autophagy pathway, on disease progression in vivo. Assessment of the transcriptome of PLD cholangiocytes followed by functional pathway cluster analysis revealed that the autophagy-lysosomal pathway is one of the most altered pathways in PLD. Direct evaluation of autophagy in PLD cholangiocytes both in vitro and in vivo showed increased number and size of autophagosomes, lysosomes, and autolysosomes; overexpression of autophagy-related proteins (Atg5, Beclin1, Atg7, and LC3); and enhanced autophagic flux associated with activation of the cAMP-protein kinase A-cAMP response element-binding protein signaling pathway. Molecular and pharmacologic intervention in autophagy with ATG7 small interfering RNA, bafilomycin A1 , and hydroxychloroquine reduced proliferation of PLD cholangiocytes in vitro and growth of hepatic cysts in three-dimensional cultures. Hydroxychloroquine also efficiently inhibited hepatic cystogenesis in the polycystic kidney disease-specific rat. CONCLUSION: Autophagy is increased in PLD cholangiocytes, contributes to hepatic cystogenesis, and represents a potential therapeutic target for disease treatment. (Hepatology 2018;67:1088 1108). PMID- 29023827 TI - TNFalpha and IL-17A are differentially expressed in psoriasis-like vs eczema-like drug reactions to TNFalpha antagonists. AB - BACKGROUND: Tumor necrosis factor alpha (TNFalpha) blocking drugs are in use for a wide range of autoimmune disorders. In up to 5% of patients, this class of drugs produces puzzling cutaneous side effects that are the subject of this investigation, namely psoriasiform and eczema-like skin inflammation. These side effects can occur after any time of treatment and regardless of the underlying disorders. The exact pathophysiology is as yet unknown. METHODS: A total of 33 patients (19 female, average age 52 years) who had a cutaneous reaction to infliximab, adalimumab or etanercept were included. The type of inflammatory reaction was determined, and the corresponding cytokine expression was evaluated by immunohistochemistry for TNFalpha, IL-1beta, IL-22, IL-6, IL-17A, IL33, IL-8 and IL-36alpha (semi-quantitative grading system from - to ++++). In addition, RNA expression levels of IL-17A and TNFalpha were confirmed by quantitative real time PCR. RESULTS: IL-17A (P < .039) and TNFalpha (P < .008) were expressed at significantly higher levels in psoriasis or pustular-like reactions (PPR) compared to eczematous-like reactions (ELR). There was no significant difference in the expression of IL-1beta, IL-22, IL-6, IL-33, IL-8 and IL-36alpha between PPR and ELR. CONCLUSION: TNFalpha and IL-17A are both cytokines known to be involved in psoriasis but less so in non-psoriasiform dermatitis or eczema. Therefore, their overexpression in PPR is plausible and suggests that the pathogenesis of PPR mirrors at least in part those of psoriasis. Further investigations will define the exact role of these cytokines in rare cutaneous side effects of anti-TNFalpha therapy. Our results suggest that IL-17A inhibition could be a therapeutic option in patients with anti-TNF induced psoriasis. PMID- 29023829 TI - Application of Quantitative Pharmacology Approaches in Bridging Pharmacokinetics and Pharmacodynamics of Domagrozumab From Adult Healthy Subjects to Pediatric Patients With Duchenne Muscular Disease. AB - Domagrozumab, a monoclonal antibody that binds to myostatin, is being developed for Duchenne muscular dystrophy (DMD) boys following a first-in-human study in healthy adults. Literature reporting pharmacokinetic parameters of monoclonal antibodies suggested that body-weight- and body-surface-area-adjusted clearance and volume of distribution estimates between adults and children are similar for subjects older than 6 years. Population modeling identified a Michaelis-Menten binding kinetics model to optimally characterize the target mediated drug disposition profile of domagrozumab and identified body mass index on the volume of distribution as the only significant covariate. Model parameters were predicted with high-precision pharmacokinetics (clearance 1.01 * 10-4 L/[h.kg]; central volume of distribution 457 * 10-4 L/kg; maximum elimination rate 17.5 * 10-4 nmol/[h.kg], Km 10.6 nmol/L) and pharmacodynamics (myostatin turnover rate 457 * 10-4 h-1 ; complex removal rate 90 * 10-4 h-1 ; half-saturation constant 4.32 nmol/L) and were used to predict target coverage for dosage selection in the DMD population. Additionally, allometric approaches (estimated scaling exponents (standard error) for clearance and volume were 0.81 [0.01] and 0.98 [0.02], respectively) in conjunction with a separate analysis to obtain the population mean weight and standard deviation suggested that if dosed per body weight, an only 11% difference in clearance is expected between the heaviest and lightest patient, thus preventing the need for dose adjustment. In summary, quantitative approaches were instrumental in bridging and derisking the fast-track development of domagrozumab in DMD. PMID- 29023828 TI - Impact of surveillance for hepatocellular carcinoma on survival in patients with compensated cirrhosis. AB - : Surveillance for hepatocellular carcinoma (HCC) has been recommended in patients with cirrhosis. In this study, we examined the extent to which the competing risk of hepatic decompensation influences the benefit of HCC surveillance by investigating the impact of availability of liver transplantation (LTx) and the rate of progression of hepatic decompensation on survival gain from HCC surveillance. A multistate Markov model was constructed simulating a cohort of 50-year-old patients with compensated cirrhosis. The primary outcome of interest was all-cause and HCC-specific mortality. The main input data included incidence of HCC, sensitivity of screening test, and mortality from hepatic decompensation. Treatment modalities modeled included LTx, resection, and radiofrequency ablation. In the base case scenario, LTx would be available to prevent death in a certain proportion of patients. In the absence of surveillance, 68.2% of the cohort members died within 15 years; of these decedents, 25.1% died from HCC and 43.6% died from hepatic decompensation. With surveillance, the median survival improved from 10.4 years to 11.2 years. The number of subjects under surveillance needed to reduce one all-cause and one HCC specific death over 15 years was 28 and 18, respectively. In sensitivity analyses, incidence of HCC and progression of cirrhosis had the strongest effect on the benefit of surveillance, whereas LTx availability had a negligible effect. CONCLUSION: HCC surveillance decreases all-cause and tumor-specific mortality in patients with compensated cirrhosis regardless of LTx availability. In addition, incidence of HCC and sensitivity of surveillance test also had a substantial impact on the benefits of surveillance. (Hepatology 2018;68:78-88). PMID- 29023831 TI - Photochemistry and Photophysics of the 3-Styrylidenebenz[e]indanes. AB - The photochemical and photophysical properties of the extended conformers of trans- and cis-1-(2-naphthyl)-2-phenylethenes (t- and c-NPEB ) are strikingly different than those of their rigid analogues, trans- and cis-3 styrylidenebenz[e]indane (t- and c-BPE). The fluorescence quantum yield and lifetime at 25 degrees C in methylcyclohexane drop from 0.76 and 22.2 ns in t NPEB to 0.0051 and 0.25 ns in t-BPE, and there are complementary changes in the photoisomerization quantum yields. In both cases, photoisomerization occurs in S2 , a stilbenic excited state. The differences in behavior are traced to the diminished S1 /S2 energy gap on the alkyl substitution afforded by the five membered ring in BPE. The effect of viscosity on the torsional relaxation of t BPE, evaluated in glycerol/methanol mixtures at 25 degrees C and in 95/5 and 99.9/0.1 glycerol/methanol (% v/v) as a function of T, is well accounted for by the medium-enhanced barrier model. Absorption and fluorescence spectra of t-BPE in pure glycerol reveal aggregate formation. Quenching of t-BPE fluorescence in methylcyclohexane by tri-n-butylamine (TBA) leads to exciplex fluorescence. Comparison with analogous results for t-NPEB suggests that charge transfer involves primarily the naphthalenic S1 state in t-NPEB and the stilbenic S2 state in t-BPE. PMID- 29023832 TI - Pupil dilation indicates the coding of past prediction errors: Evidence for attentional learning theory. AB - The attentional learning theory of Pearce and Hall () predicts more attention to uncertain cues that have caused a high prediction error in the past. We examined how the cue-elicited pupil dilation during associative learning was linked to such error-driven attentional processes. In three experiments, participants were trained to acquire associations between different cues and their appetitive (Experiment 1), motor (Experiment 2), or aversive (Experiment 3) outcomes. All experiments were designed to examine differences in the processing of continuously reinforced cues (consistently followed by the outcome) versus partially reinforced, uncertain cues (randomly followed by the outcome). We measured the pupil dilation elicited by the cues in anticipation of the outcome and analyzed how this conditioned pupil response changed over the course of learning. In all experiments, changes in pupil size complied with the same basic pattern: During early learning, consistently reinforced cues elicited greater pupil dilation than uncertain, randomly reinforced cues, but this effect gradually reversed to yield a greater pupil dilation for uncertain cues toward the end of learning. The pattern of data accords with the changes in prediction error and error-driven attention formalized by the Pearce-Hall theory. PMID- 29023830 TI - Drug management in acute kidney disease - Report of the Acute Disease Quality Initiative XVI meeting. AB - AIMS: To summarize and extend the main conclusions and recommendations relevant to drug management during acute kidney disease (AKD) as agreed at the 16th Acute Disease Quality Initiative (ADQI) consensus conference. METHODS: Using a modified Delphi method to achieve consensus, experts attending the 16th ADQI consensus conference reviewed and appraised the existing literature on drug management during AKD and identified recommendations for clinical practice and future research. The group focussed on drugs with one of the following characteristics: (i) predominant renal excretion; (ii) nephrotoxicity; (iii) potential to alter glomerular function; and (iv) presence of metabolites that are modified in AKD and may affect other organs. RESULTS: We recommend that medication reconciliation should occur at admission and discharge, at AKD diagnosis and change in AKD phase, and when the patient's condition changes. Strategies to avoid adverse drug reactions in AKD should seek to minimize adverse events from overdosing and nephrotoxicity and therapeutic failure from under-dosing or incorrect drug selection. Medication regimen assessment or introduction of medications during the AKD period should consider the nephrotoxic potential, altered renal and nonrenal elimination, the effects of toxic metabolites and drug interactions and altered pharmacodynamics in AKD. A dynamic monitoring plan including repeated serial assessment of clinical features, utilization of renal diagnostic tests and therapeutic drug monitoring should be used to guide medication regimen assessment. CONCLUSIONS: Drug management during different phases of AKD requires an individualized approach and frequent re-assessment. More research is needed to avoid drug associated harm and therapeutic failure. PMID- 29023833 TI - High School Students' Recommendations to Improve School Food Environments: Insights From a Critical Stakeholder Group. AB - BACKGROUND: The Healthy, Hunger-Free Kids Act of 2010 (HHFKA) directed the US Department of Agriculture (USDA) to revise school meal standards. Students are most affected by efforts to improve the school food environment; yet, few studies directly include students. This study examined high school students' experiences of school meal reform to gain insight into implementation recommendations. METHODS: We conducted 5 focus groups with high school students (N = 15) from high schools across 9 states. We also conducted follow-up interviews to further explore personal experiences. Focus groups and interview transcripts were coded and organized in Atlas.ti v7 by analysts, following principles of constant comparative analysis. RESULTS: Students reported overall positive perceptions of the revised school meal standards and supported continued efforts to improve the food environment. Recommendations to improve the food environment included engaging students, focusing on the quality and palatability of meal items, moving toward scratch-cooking, and addressing cafeteria infrastructure. CONCLUSIONS: Students' recommendations point to opportunities where school districts, as well as local, state, and federal organizations can work to improve the school food environment. Their insights are directly relevant to USDA's recently released Local School Wellness Policy final rule, of which school meal standards are one provision. PMID- 29023834 TI - Mixed-Methods Evaluation of a Healthy Exercise, Eating, and Lifestyle Program for Primary Schools. AB - BACKGROUND: Reversing decline in physical fitness and increase in excess body weight in school children are considered major public health challenges. We evaluated a proposed model to integrate a screening and healthy exercise, eating, and lifestyle program (HEELP) into primary schools in Canberra, Australia. Objectives were: (1) to establish body status and physical competencies of 5- to 10-year-old children; (2) to evaluate the service's impact on body status and physical fitness; and (3) to gauge parent/guardian and school perspectives on the service. METHODS: A mixed-methods approach was used over 4 school years, 2010 2013. Primary evaluation used direct quantitative measurement. Confirmatory qualitative methods were implemented in the last 2 years. RESULTS: The service was delivered on 71 occasions involving 25 schools; 7750 children were screened and 709 completed all aspects of the HEELP evaluation. Over 60% of children screened had 2 or more measures that would benefit from remedial intervention. CONCLUSIONS: All body status and physical fitness measures showed small beneficial changes on a population basis immediately after the HEELP. Further benefit did not accrue at 6 months after the program. Semistructured interviews with schools and parent/guardian surveys confirmed some beneficial effects observed by direct quantitative measurement. PMID- 29023835 TI - School-Based Health Centers and Adolescent Substance Use: Moderating Effects of Race/Ethnicity and Socioeconomic Status. AB - BACKGROUND: School-based health centers (SBHCs) have been associated with many positive health and academic outcomes. The current study extends previous research and examines possible differences in the association between SBHC exposure and adolescent alcohol, tobacco, and other drug use by race/ethnicity, sex, and socioeconomic status (SES). METHODS: California Healthy Kids Survey data from 504 traditional high schools in California were linked with publicly available data on SBHCs and school demographics. Multilevel logistic regression analyses were conducted controlling for school and individual characteristics. RESULTS: Significant interactions suggest that SBHC exposure was inversely associated with past 30-day alcohol use, binge drinking, and cigarette and e cigarette use among African American youth and negatively associated with cigarette and marijuana use among Asian youth, relative to whites. There was also a significant interaction between SBHC exposure and parent education for past 30 day alcohol use and binge drinking. No significant sex interactions were observed. CONCLUSIONS: SBHC exposure appears to be inversely related to substance use among youth in some ethnic minority groups and youth of lower SES. This may have implications regarding SBHC placement and investment. Additional research is necessary to understand the mechanisms through which SBHCs may influence adolescent substance use and other health behaviors. PMID- 29023836 TI - Impact of NFL PLAY 60 Programming on Elementary School Children's Body Mass Index and Aerobic Capacity: The NFL PLAY 60 FitnessGram Partnership Project. AB - BACKGROUND: We examined the impact of the Fuel Up to Play 60 (FUTP60) program on children's body mass index (BMI) and aerobic capacity (AC). METHODS: Participation in the FUTP60 and both BMI and AC profiles were collected through the NFL PLAY 60 FitnessGram Partnership Project involving over 100 schools from 22 US states. We specifically examined the distributions of BMI and AC among participating versus nonparticipating schools in the 2012-2013 school year. Hierarchical linear models tested the impact of participation and availability of additional funding for program implementation on the proportions of youth meeting FitnessGram health-related fitness standards (ie, Needs Improvement-Health Risk [NIHR] and Healthy Fitness Zone [HFZ] categories). RESULTS: After 1 year implementing the program, participating schools had lower proportions of boys ( 4.1 +/- 2.0%, p = .04) and girls (-4.5 +/- 2.0%, p = .03) in the NIHR for BMI, and lower proportion of girls (-9.7 +/- 4.0%, p = .02) in the NIHR for AC. There were no differences in the distributions for the HFZ and the availability of additional funding did not alter the relationships (p > .05). CONCLUSIONS: This study provides preliminary evidence that participation in the FUTP60 is associated with improved profiles of health-related fitness. PMID- 29023837 TI - Integrating Health Education in Academic Lessons: Is This the Future of Health Education in Schools? PMID- 29023838 TI - Association Between Experiencing Relational Bullying and Adolescent Health Related Quality of Life. AB - BACKGROUND: Bullying is a public health concern for the school-aged population, however, the health outcomes associated with the subtype of relational bullying are less understood. The purpose of this study was to examine the association between relational bullying and health-related quality of life (HRQL) among young people. METHODS: This study utilized data from 5335 students aged 11-15 years, collected as part of the 2014 Health Behavior in School-aged Children (HBSC) study conducted in England. Data were collected through self-completed surveys. Multilevel analysis modeled the relationship between relational bullying and HRQL. Demographic variables (sex, age, ethnicity, socioeconomic status) and other forms of bullying were controlled for. RESULTS: Experiencing relational bullying had a significant negative association with HRQL whilst controlling for other forms of bullying. Weekly relational bullying resulted in an estimated 5.352 (95% confidence interval (CI), -4.178, -6.526) decrease in KIDSCREEN-10 score compared with those not experiencing relational bullying. CONCLUSION: Experiencing relational bullying is associated with poorer HRQL. The findings question the perception of relational bullying as being a predominantly female problem. Girls were more likely to report experiencing relational bullying, but the negative association with HRQL was equal for boys and girls. PMID- 29023839 TI - Effectiveness of a Brief Home Parenting Intervention for Reducing Early Sexual Risks Among Latino Adolescents: Salud y Exito. AB - BACKGROUND: Teen pregnancy rates and related risks remain elevated among Latino teens. We tested the impact on youth sexual behaviors of a brief, culturally targeted, bilingual media intervention designed for parents of young adolescents. METHODS: Salud y exito (Health & Success) uses dramatic audio stories to model positive parenting practices. After completing classroom surveys, 27 urban schools in the Northeast and Southwest serving low-income Latino communities were randomized so that all families of seventh grade students were sent either: (1) booklets on healthy eating and exercise; (2) Salud-50, where families either received booklets or the intervention, or (3) Salud-100, where all families received the intervention. Postintervention follow-up surveys were conducted at 3 and 12-months. Multilevel analyses tested intervention effects, controlling for sociodemographics. RESULTS: Compared with controls, at 12-months postintervention (8th grade spring), youth in Salud-100 report lower sexual risks (touching, AOR 1.46, CI 1.19-0.84, p < .001; lifetime sex (AOR 0.74, CI 0.61-0.90, p < .01); and sex intentions (AOR 0.78, CI 0.63-0.96, p < .05). Consistent with a dose response, Salud-50 results are between those from Salud-100 and control schools. CONCLUSIONS: Salud y exito is an effective parenting intervention that can augment school-based health and sexuality education and help Latino parents support their children during early adolescence. PMID- 29023840 TI - Associations Between Peer Harassment and School Risk and Protection Profiles. AB - BACKGROUND: Peer harassment can have serious implications for students' success and well-being, and prevention programs need to consider the school context. This study aimed to: (1) identify groups of similar schools based on their risk and protective factors and demographic characteristics and (2) examine associations between school profiles and students' bullying involvement. METHODS: Data came from 505 schools and 122,106 students who completed the 2013 Minnesota Student Survey. School-level risk and protective factors and demographic characteristics were included in a latent profile analysis (LPA) to identify profiles of schools. Multilevel logistic regression was used to assess associations between school profiles and peer harassment. RESULTS: Six qualitatively different school profiles were identified. Unadjusted models showed that schools with higher levels of risk had greater odds of peer harassment. However, after controlling for student-level risk and protection, regardless of school-level risk, students in metro-area schools with a more diverse student body reported lower odds of bullying involvement. CONCLUSIONS: These findings highlight the importance of the social environment into peer harassment. In addition to addressing student-level risk and protection, larger community factors and norms also need to be taken into account for developing, selecting, and implementing the most effective approaches to bullying prevention. PMID- 29023842 TI - Dropped-head syndrome in a patient under treatment with the MEK inhibitor trametinib for NRAS-mutated metastatic melanoma. PMID- 29023843 TI - Parameterization of the GPR119 Receptor Agonist AR231453. AB - The GPR119 receptor is a class A G protein-coupled receptor expressed mainly in pancreatic beta cells. Since GPR119 receptor activation ameliorates Type 2 Diabetes through an increase in glucose-dependent insulin release, the development of new GPR119 receptor agonists would be worthwhile. A better understanding of the way agonists interact with the receptor would help to design better ligands for the receptor. It also would help to better understand the agonist mechanism of action. An understanding of how agonists interact with the receptor can be acquired using molecular dynamics simulations, which cannot be performed without having force field parameters for the ligand molecule. This study presents the development of CHARMM force field parameters for AR231453, the prototypical first potent and orally available GPR119 agonist, using the Force Field Tool Kit. The parameters are validated through Normal Mode Analysis calculations and molecular dynamics simulations in combination with infrared spectroscopy. (c) 2017 Wiley Periodicals, Inc. PMID- 29023841 TI - A Mixed-Methods Comparison of Classroom Context During Food, Health & Choices, a Childhood Obesity Prevention Intervention. AB - BACKGROUND: Schools are frequent settings for childhood obesity prevention; however, intervention results are mixed. Classroom context may hold important clues to improving these interventions. METHODS: We used mixed methods to examine classroom context during a curriculum intervention taught by trained instructors in fifth grade classrooms. We identified classrooms with high and low buy-in using cluster analysis and compared intervention delivery and reception, student energy balance-related behavior, and student perceptions about supports and barriers to energy balance. RESULTS: Delivery and reception did not differ between the groups. Between-group differences in unhealthy behaviors were smaller at posttest, due to improvement in low buy-in classes. Although student perceptions of supports and barriers to energy balance were similar across groups, students in high buy-in classes indicated food preferences as a support while students in low buy-in classes indicated food preferences as a barrier. Neighborhood environment emerged as a universal barrier. CONCLUSIONS: Trained instructors may improve intervention delivery and reception regardless of classroom context. Social norms could explain high levels of unhealthy behavior in low buy-in classes at baseline; improvement at posttest suggests that the curriculum may have motivated change. All children need more strategies and supportive policies to overcome a challenging food environment. PMID- 29023844 TI - Information on Gas-Phase Diatomic Molecules from Magnetically Induced Current Densities. AB - Magnetically induced current densities are different for different types of chemical bonds, and may help highlight some of their characteristics and stress their main differences. The present work considers magnetically induced current densities in the bonds of diatomic molecules bonded by covalent bonds as well as the gas phase molecules of 1:1 ionic compounds, comparing the current strength values and visualizing current density maps. The results show clear-cut differences for the different types of bonds (non-polar covalent, polar covalent, and ionic), and can also be related to the extent of the covalent or ionic character of a bond. For ionic compounds, the results also show relevant differences depending on the charges of the ions and on their electron configuration (including significant effects from the presence of d electrons in the outer shell of the ions). The article presents and analyses the results in detail. It is concluded that the magnetically induced current densities contribute to the description and interpretation of chemical bonding in diatomic molecules. (c) 2017 Wiley Periodicals, Inc. PMID- 29023846 TI - Locomotor and skeletal muscle abnormalities in trembler J neuropathic mice. AB - INTRODUCTION: Patients with hereditary peripheral neuropathies exhibit characteristic deformities of the hands and feet and have difficulty ambulating. To examine to what extent neuropathic animals recapitulate these deficits, we studied trembler J (TrJ) mice, which model early-onset demyelinating neuropathy. METHODS: A cohort of 4-month-old female wild type and neuropathic mice were evaluated for locomotor measurements, neuromuscular function, and skeletal muscle proteolysis and morphometry. RESULTS: Utilizing the DigiGait imaging system, we identified pronounced alterations in forepaw and hindpaw angles and a decrease in hindpaw area on the treadmill in neuropathic rodents. Torque production by the tibialis anterior (TA) muscle was significantly weakened and was paralleled by a decrease in myofiber cross-sectional area and an increase in muscle tissue proteolysis. DISCUSSION: Our findings in TrJ mice reflect the phenotypic presentation of the human neuropathy in which patients exhibit weakness of the TA muscle resulting in foot drop and locomotor abnormalities. Muscle Nerve 57: 664 671, 2018. PMID- 29023845 TI - Aqueous Extract of Gynura Bicolor Attenuated Hepatic Steatosis, Glycative, Oxidative, and Inflammatory Injury Induced by Chronic Ethanol Consumption in Mice. AB - Gynura bicolor leaf aqueous extract (GAE) is rich in phytochemicals including phenolic acids, flavonoids, carotenoids, and anthocyanins. Effects of GAE upon hepatic injury in mice with chronic ethanol intake were examined. Lieber-DeCarli liquid diet with ethanol was used to induce hepatic lipid accumulation, oxidative, glycative, and inflammatory injury. GAE at 0.25% or 0.5% was added in feeds, and supplied to mice consumed Lieber-DeCarli liquid diet with ethanol for 6 wk. Blood and liver were collected for analyses. Results showed that ethanol increased plasma and hepatic triglyceride and cholesterol content, and affected plasma levels of insulin, adiponectin, leptin, and ghrelin. GAE at both doses decreased lipid accumulation, and at high dose improved hormones abnormality. Histological data revealed that GAE supplement mitigated hepatic lipid deposit. Ethanol increased plasma Nepsilon -(carboxyethymethyl)-lysine and pentosidine levels. GAE at high doses lowered those glycative factors. Ethanol depleted glutathione content, increased CYP2E1 activity and reactive oxygen species production, and reduced the activity of glutathione peroxide, glutathione reductase and catalase in liver. GAE supplement at both doses reversed these alterations and attenuated hepatic oxidative stress. GAE supplement also at both doses decreased hepatic inflammatory cytokines release in ethanol treated mice. These findings support that leaves of G. bicolor is a functional food with liver protective activities against ethanol. PMID- 29023847 TI - Buffalo SREBP1: molecular cloning, expression and association analysis with milk production traits. PMID- 29023848 TI - Folliculocystic and collagen hamartoma of tuberous sclerosis: A new case in a female patient and review of literature. AB - Folliculocystic and collagen hamartoma (FCCH) of tuberous sclerosis is a rare entity described in 2012 by Torrelo et al. with only 8 cases described, predominantly in males. It presents since birth or early infancy and in the majority of cases is associated with tuberous sclerosis. The hamartoma presents as an exophytic plaque and has distinctive histopathological features including hair follicles, intact or ruptured epidermal cysts, and an increased number of collagen fibers extending to the subcutaneous tissue. Herein we present an additional case of this rare entity in an 18-year-old female who met clinical criteria for tuberous sclerosis. The patient had an exophytic mass in the left temporal area for many years and wanted surgical excision due to its cosmetic appearance. Histopathology of the surgical specimen showed a hamartomatous lesion with multiple large intact epidermal cysts, hairs and increased thickened collagen. The patient has followed up for 1 year after the excision, with no recurrence. Additionally, we provide a literature review of known cases of FCCH as well as its clinical and histopathological differential diagnosis. PMID- 29023849 TI - Effects of Early Cues on the Processing of Chinese Relative Clauses: Evidence for Experience-Based Theories. AB - We used Chinese prenominal relative clauses (RCs) to test the predictions of two competing accounts of sentence comprehension difficulty: the experience-based account of Levy () and the Dependency Locality Theory (DLT; Gibson, ). Given that in Chinese RCs, a classifier and/or a passive marker BEI can be added to the sentence-initial position, we manipulated the presence/absence of classifiers and the presence/absence of BEI, such that BEI sentences were passivized subject extracted RCs, and no-BEI sentences were standard object-extracted RCs. We conducted two self-paced reading experiments, using the same critical stimuli but somewhat different filler items. Reading time patterns from both experiments showed facilitative effects of BEI within and beyond RC regions, and delayed facilitative effects of classifiers, suggesting that cues that occur before a clear signal of an upcoming RC can help Chinese comprehenders to anticipate RC structures. The data patterns are not predicted by the DLT, but they are consistent with the predictions of experience-based theories. PMID- 29023852 TI - The changing epidemiology of acute flaccid paralysis warrants a paradigm shift in surveillance. PMID- 29023853 TI - Antibiotics, gut microbiome and obesity. AB - Antibiotics have been hailed by many as "miracle drugs" that have been effectively treating infectious diseases for over a century, leading to a marked reduction in morbidity and mortality. However, with the increasing use of antibiotics, we are now faced not only with the increasing threat of antibiotic resistance, but also with a rising concern about potential long-term effects of antibiotics on human health, including the development of obesity. The obesity pandemic continues to increase, a problem that affects both adults and children alike. Disruptions to the gut microbiome have been linked to a multitude of adverse conditions, including obesity, type 2 diabetes, inflammatory bowel diseases, anxiety, autism, allergies, and autoimmune diseases. This review focuses on the association between antibiotics and obesity, and the role of the gut microbiome. There is strong evidence supporting the role of antibiotics in the development of obesity in well-controlled animal models. However, evidence for this link in humans is still inconclusive, and we need further well-designed clinical trials to clarify this association. PMID- 29023854 TI - Still darkness on the edge of Brugada syndrome. PMID- 29023855 TI - Hepatitis C virus infection in Jeddah city, Saudi Arabia: Seroprevalence and knowledge. AB - The infection rate of the hepatitis C virus (HCV) in Saudi Arabia is among the lowest in the world. However, it is likely that poor knowledge and awareness of HCV infection could minimize the effectiveness of prevention and control programs in the kingdom. Thus, the study objective was to estimate the prevalence of HCV infection, and to assess current knowledge about it, in the targeted population. Data on 5482 Saudi people attending primary healthcare centers in Jeddah City in 2014/2015 were analyzed in this cross-sectional study. Questions that covered the natural history, risk behavior, and prevention, and treatment of HCV were collected using a predesigned questionnaire. HCV seroprevalence was assessed using an enzyme-linked immunosorbent assay. HCV prevalence of 0.38% (95% confidence interval: 0.22-0.54) was found. The level of knowledge of the natural history, risk behavior, and prevention and treatment of HCV was poor among the participants. The lowest level of knowledge for all participants pertained to its prevention and treatment. The prevalence of HCV was low in Saudi Arabia (0.38%). However, adequate knowledge of HCV was lacking. Thus, the need to increase knowledge and awareness of HCV in the Saudi population is warranted. PMID- 29023856 TI - To do or not to do? plasma exchange and timing of steroid administration in progressive multifocal leukoencephalopathy. AB - OBJECTIVE: To retrospectively analyze the effect of plasma exchange (PLEX; yes = PLEX+ , no = PLEX- ) and steroids administration timing (prophylactically [proST] or therapeutically [therST]) on the longitudinal clinical course of patients with natalizumab-related progressive multifocal leukoencephalopathy (PML) and full blown immune reconstitution inflammatory syndrome (PML-IRIS). METHODS: Clinical and radiological data of 42 Italian patients with PML were analyzed. Patient's data are available until 12 months after PML diagnosis. PLEX and steroids treatment as time-dependent covariates were entered in: (1) a Cox model to investigate their impact on full-blown PML-IRIS latency; (2) an analysis of variance ANOVA to investigate their impact on IRIS duration; and (3) a linear mixed model to assess their impact on the longitudinal clinical course (measured by means of Expanded Disability Status Scale [EDSS]). RESULTS: Treatment with PLEX was not associated to PML-IRIS latency (hazard ratio [HR] = 1.05; p = 0.92), but once IRIS emerged, its duration was significantly longer in patients who underwent PLEX (101 vs 54 days in PLEX+ and PLEX- patients; p = 0.028). Receiving proST versus therST was not associated to IRIS latency (HR = 0.67; p = 0.39) or duration (p = 0.95). Patients who underwent proST had a significantly higher EDSS increase during PML (0.09 EDSS points per month; p = 0.04) as compared to those who had therST. INTERPRETATION: This study highlights that: (1) caution on the use of PLEX should be considered as the current data do not support a beneficial effect of PLEX and (2) caution on the early use of steroids is suggested because their prophylactic use to prevent full-blown PML-IRIS seems to negatively impact on the longitudinal disability course. Ann Neurol 2017;82:697-705. PMID- 29023858 TI - Interleukin-1 gene cluster Haplotype analysis in the chronic outcome prediction of the Hepatitis B virus infection. AB - Hepatitis B virus (HBV) infection is well known as an important cause of the chronic liver disease. The screening of the genotype of certain cytokines might be helpful to predict the clinical outcome of an HBV infection. The present study investigates the relationship between the polymorphism and haplotypes of the Interleukin-1 (IL-1) gene family, including IL-1-alpha (IL-1A), IL-1-beta (IL 1B,) and IL-1 receptor antagonist (IL-1RN), with chronic HBV infection. A total of 297 chronic HBV and 333 matched on sex and age control individuals were genotyped using the standard sequence-specific-polymerase chain reaction primer (SSP-PCR) method. Four different haplotype analysis software packages were applied for data interpretation. The results showed excess genotype A1/A1 and A2/A2 at IL-1RN (40.2%, 39.9%), C/T at IL-1A-889 (55.6%), and C/C at IL-1B-511 (41.1%) in controls while A1/A1 at IL-1RN (59.3%), T/T at IL-1B-31 (46.5%), C/T at IL-1B + 3953 (65%), in chronic HBV infection cases. A total of 148 haplotypes were observed overall (96 in the case group and 89 in the control group). The haplotype combination of genotype A1/A1 at IL1-RN along with a C/T for all three IL-1B polymorphic positions and either C/T or T/T at the IL-1A-899 position may increase the probability of the chronic outcome for the HBV infection. PMID- 29023857 TI - Preceding haemorrhagic shock as a detrimental risk factor for respiratory distress after excessive allogeneic blood transfusion. AB - BACKGROUND AND OBJECTIVES: Whether transfusion-associated circulatory overload arises as a simple result of over-transfusion or requires another trigger remains unclear. Here, we examined whether respiratory distress could be reproduced by massive transfusion alone in an animal model. MATERIALS AND METHODS: A total of 20 anaesthetized swine were equipped with monitors. Allogeneic blood was obtained from 10 donor swine. A 4-stage loading protocol with each stage equivalent to 25% of the blood volume (BV) in the recipient swine was then used to infuse crystalloid (CR), hydroxyethyl starch (HES) or allogeneic blood (TR) (n = 5 each). The five remaining animals were subjected to a haemorrhagic shock (HS) prior to an allogeneic blood transfusion (TRS). RESULTS: The PaO2 /FiO2 (P/F) ratio did not decrease to the level of respiratory distress in either the CR group or the HES group after loading with a volume corresponding to 100% of the recipient BV. However, the TRS and TR groups exhibited significant reductions in the P/F ratio after fluid overloading (227 +/- 29 and 267 +/- 133, respectively). Blood transfusion after HS expanded the blood volume, but over-transfusion alone did not. HS was accompanied by an increase in the white blood cell count. CONCLUSION: The lung and the heart can tolerate volume overloads with HES, CR and even transfused blood. However, a preceding HS may induce an inflammatory response, making the lung vulnerable to subsequent blood overloads. In this study, a preceding haemorrhagic shock mediated respiratory distress following massive transfusion in a swine model. (247 words). PMID- 29023859 TI - Effects of extremely low frequency magnetic field on the development of tolerance to the analgesic effect of morphine in rats. AB - This study examined the effects of low frequency magnetic field (MF) on tolerance to analgesic effect of morphine in rats. Rats were made tolerant to morphine by injecting morphine (10 mg/kg, s) once daily for 8 consecutive days. Rats were simultaneously exposed to an MF (50 Hz at 1, 50, and 100 MUT for 30 min) before, immediately, or 30 min after injection of morphine, and also exposed to a 0.5, 6, 12, and 30 Hz at 100 MUT for 30 min before injection of morphine. The percentage of maximum possible effect of morphine (% MPE) was measured on the 1st, 4th, and 8th days by hot plate test. We observed that MF radiation (50 Hz at 1 uT and 30 Hz at 100 uT) immediately before and MF radiation (50 Hz at 100 uT) after morphine injection prevented the development of morphine tolerance compared to control. Also, we found that exposure to MF (50 Hz at 1, 50, and 100 uT) 30 min after injection of morphine failed to maintain the analgesic effect of morphine. Our results showed that exposure to low frequency electromagnetic field (30 and 50 Hz) immediately before or after the injection of morphine may be a potential method for treating the development of morphine tolerance in rats. Bioelectromagnetics. 38:618-625, 2017. (c) 2017 Wiley Periodicals, Inc. PMID- 29023860 TI - Disentangling Effects of Input Frequency and Morphophonological Complexity on Children's Acquisition of Verb Inflection: An Elicited Production Study of Japanese. AB - This study aims to disentangle the often-confounded effects of input frequency and morphophonological complexity in the acquisition of inflection, by focusing on simple and complex verb forms in Japanese. Study 1 tested 28 children aged 3;3 4;3 on stative (complex) and simple past forms, and Study 2 tested 30 children aged 3;5-5;3 on completive (complex) and simple past forms, with both studies using a production priming paradigm. Mixed effects models for children's responses were built to test the prediction that children's verb use is explained by the relative bias in input frequency between the two inflectional forms. Although Study 1 did not show a significant effect of input bias (apparently due to problems with item selection), Study 2, which corrected for this problem, yielded the predicted relationship. These findings suggest that input frequency effects, at the level of different inflectional forms of the same verb stem, hold even after controlling for morphophonological complexity. PMID- 29023861 TI - Analgesic, Antiinflammatory, and Antipyretic Effects of S(+)-Ketoprofen In Vivo. AB - Many studies indicate that the S-enantiomers of arylpropionic (APA) nonsteroidal antiinflammatory drugs (NSAIDs) are the pharmacologically active enantiomers. S(+)-ketoprofen (dexketoprofen) stereoselectively inhibits cyclooxygenase (COX) in vitro but very little is known about the differential activity of ketoprofen enantiomers in vivo. We examined the analgesic, antiinflammatory, and antipyretic activities of S(+)-ketoprofen in rats and mice. First, we measured the antinociceptive action of S(+)-ketoprofen in abdominal pain models. After intravenous administration, 0.5 mg/kg S(+)-ketoprofen inhibited 92.1 +/- 2.2% of writhing in mice. Stereoselectivity in the activity was detected; intravenous administration of the R(-)-enantiomer resulted in no statistically significant activity in a dose range of 0.15-1 mg/kg. Similar results were obtained after oral administration in mice. In the rat, S(+)-ketoprofen was a more potent analgesic than diclofenac by both intravenous and oral administration. There was no significant difference between the analgesic effect of S(+)-ketoprofen treatment and the twofold dose of the racemic form in both the mouse and rat models. Second, we measured the antiinflammatory activity of S(+)-ketoprofen using a carrageenan-induced paw edema model in the rat. Intravenous administration of 5 mg/kg of S(+)-ketoprofen almost completely inhibited edema formation. After oral administration, S(+)-ketoprofen is both more potent and effective than diclofenac. Third, we measured antipyretic activity. S(+) ketoprofen showed a marked antipyretic action (ED50 = 1.6 mg/kg) and was the most potent of the NSAIDs tested. S(+)-ketoprofen is a potent antiinflammatory, analgesic, and antipyretic agent in vivo, consistent with its potent anti-COX activity. PMID- 29023862 TI - Clinical Comparison of Dexketoprofen Trometamol, Ketoprofen, and Placebo in Dental Pain. AB - The efficacy and tolerability of single doses of dexketoprofen trometamol12.5 mg, 25 mg, and 50 mg and ketoprofen 50 mg were compared in this double-blind, randomized, placebo-controlled study of 210 patients with moderate to severe pain after removal of one mandibular impacted third molar tooth. Pain intensity and pain relief were monitored for 6 h after administration of medication using visual analogue and verbal rating scales. All four active treatments were significantly more effective than placebo (P < 0.001). Dexketoprofen 25 mg and 50 mg produced an analgesic effect within 30 min of administration and their effect persisted for 6 h. Ketoprofen 50 mg produced a level of analgesia similar to those of the higher doses of dexketoprofen trometamol, but it had a slower onset. The 12.5-mg dose of dexketoprofen trometamol was significantly superior to placebo but produced a lower level and shorter duration of analgesia compared to the other active treatments. There were no significant differences between 25 and 50 mg of dexketoprofen trometamol in any measure of analgesic efficacy. No serious adverse events were observed and there were no significant differences in the incidence of adverse events among treatment groups. These results demonstrate that dexketoprofen trometamol 25 mg is at least as effective as the racemic ketoprofen 50 mg in the treatment of postsurgical dental pain. The more rapid onset of action compared to ketoprofen suggests that dexketoprofen trometamol is more appropriate for treatment of acute pain. PMID- 29023863 TI - The Effect of Food and an Antacid on the Bioavailability of Dexketoprofen Trometamol. AB - This randomized three-way, crossover pharmacokinetic study was performed to determine whether food or an antacid alters the bioavailability of dexketoprofen trometamol. A total of 24 healthy volunteers received three single 25 mg doses of dexketoprofen trometamol administered either in fasting condition, after an antacid (Maalox(r) ), or after a high-fat breakfast. Each volunteer received the three treatments in a randomized order, with a 7-day washout period between treatments. Blood samples were taken at regular intervals up to 24 h after dose. Plasma dexketoprofen concentrations were determined by HPLC and the main outcome measures were area under curve of concentration vs. time (AUC0-infinity ), maximal plasma concentration (Cmax .), and time to reach maximal concentration (tmax ). Administration of an antacid 10 min before dexketoprofen trometamol had no clinically relevant effect on any of the pharmacokinetic parameters. Food did not alter the extent of absorption of dexketoprofen trometamol, but tmax was significantly increased and Cmax significantly decreased compared with the fasting state. In conclusion, we can state that neither antacid nor food has a significant effect on the overall bioavailability of dexketoprofen trometamol. PMID- 29023864 TI - Comparison of Dexketoprofen Trometamol and Ketoprofen in the Treatment of Osteoarthritis of the Knee. AB - Dexketoprofen, the active enantiomer of the racemic compound ketoprofen, is a new nonsteroidal antiinflammatory drug (NSAID) of the arylpropionate family. The efficacy and safety of dexketoprofen trometamol were compared with the equivalent enantiomeric dose of ketoprofen in a multicenter, randomized, double-blind 3-week trial of adult outpatients with pain due to osteoarthritis of the knee. After a washout period of 7-15 days, patients were randomly assigned to receive either dexketoprofen trometamol 25 mg tid (N = 89) or ketoprofen 50 mg tid (N = 94). Of the 183 patients enrolled, two were lost to follow-up. At the end of treatment (3 weeks), the main efficacy outcome measures were significantly better in the dexketoprofen trometamol group than in the ketoprofen group. In addition, overall physician assessment indicated that 75% of the dexketoprofen group had improved compared with 50% of the ketoprofen patients. There were fewer adverse events in the dexketoprofen treatment group, but the difference did not reach statistical significance. These results demonstrate that dexketoprofen trometamol 25 mg tid is more effective than ketoprofen 50 mg tid in short-term symptomatic treatment of knee osteoarthritis and suggest that the tolerability of dexketoprofen trometamol is more favorable than ketoprofen. Therefore, the substitution of dexketoprofen for racemic ketoprofen may be advantageous in clinical practice. PMID- 29023865 TI - Intestinal Ulcerogenic Effect of S(+)-Ketoprofen in the Rat. AB - Nonsteroidal antiinflammatory drugs (NSAIDs) inhibit prostaglandin synthesis in the gastrointestinal mucosa, which can lead not only to stomach ulcers but also ulcers in the small and large intestines. Ulcers of the small intestine are less common than those of the stomach, but intestinal lesions are more life threatening. Although the R(-)-enantiomers of the arylpropionic acid (APA) class of NSAIDs are assumed to lack the toxic effects of cyclooxygenase inhibition, they may contribute to the ulcerogenicity of racemates. We have examined the intestinal ulcerogenic effects of single oral doses of S(+)-ketoprofen compared with racemic ketoprofen in the small intestine and cecum of rats. The toxicity in the small intestine was measured as the weight ratio between portions of intestine showing lesions and the total weight of the tissue. Toxicity in the cecum was evaluated by measuring the size of the ulcers. S(+)-ketoprofen had no significant ulcerogenic effect at 10 or 20 mg/kg. However, racemic ketoprofen was clearly ulcerogenic in the small intestine and cecum at the 40 mg dose. R(-) ketoprofen at 20 mg/kg does not show any effect in the cecum and only limited ulcerogenesis in the small intestine: The latter effect may be the result of racemic inversion. Therefore, the ulcerogenic action of racemic ketoprofen can be interpreted as a synergism between S(+)- and R(-)-ketoprofen. The mechanism of this synergism is not well understood but may be a general feature of APA NSAIDs. PMID- 29023866 TI - Antinociceptive Effects of S(+)-Ketoprofen and Other Analgesic Drugs in a Rat Model of Pain Induced Uric Acid. AB - We investigated the antinociceptive properties of dexketoprofen trometamol (S(+) ketoprofen tromethamine salt; SKP), a new analgesic, antiinflammatory drug, using the pain-induced functional impairment model in the rat (PIFIR), an animal model of arthritic pain. SKP was compared with racemic ketoprofen tromethamine salt (rac-KP), R(-)-ketoprofen tromethamine salt (RKP), ketorolac (KET), and morphine (MOR). We also assessed the effects of flurbiprofen (rac-FB) and its enantiomers (SFB and RFB) in the same model. Groups of six rats received either vehicle or analgesic drug and antinociception was evaluated by evaluating the dose-response curves over time. SKP was an effective antinociceptive drug in this model and was almost equally potent by either oral or intracerebroventricular administration. The oral potency of SKP was similar to that of oral KET and greater than that of oral MOR. No significant differences were observed between racemic ketoprofen and its enantiomers when administered orally. In the rat, significant bioinversion of RKP to SKP occurs when RKP is given orally. After oral administration of RKP, SKP was detectable in 30 min and surpassed the concentration of RKP after 3 h. Nevertheless, when the compounds were given intracerebroventricularly, some stereoselectivity in favor of SKP was observed. Stereoselectivity was observed with flurbiprofen, an analogue of ketoprofen that does not undergo significant metabolic inversion. Whereas SFB was an effective antinociceptive, RFB had no antinociceptive effect at the doses tested when given either orally or intracerebroventricularly. PMID- 29023868 TI - Dexketoprofen Trometamol. PMID- 29023867 TI - Bioavailability of S(+)-Ketoprofen After Oral Administration of Different Mixtures of Ketoprofen Enantiomers to Dogs. AB - Recent reports have disagreed on whether the bioavailability of S(+)-ketoprofen is affected by the presence of R(-)-ketoprofen. To examine this directly, we designed a randomized crossover study in beagle dogs. [14 C]- S(+)-ketoprofen trometamol and R(-)-ketoprofen trometamol were administered in the following percentage ratios: A, 99:1; B, 95:5; C, 90:10; D, 70:30; E, 50:50. Treatments were administered as a single oral dose of 1 mg/kg trometamol salt. Each of eight dogs received all five combinations in random order with a 1-week washout period between doses. Blood samples were taken before drug administration and at regular intervals for 240 min after dosing. A progressive increase in the plasma concentration of [14 C]-S(+)-ketoprofen was observed on going from treatment E (lowest dose of S-enantiomer) to treatments containing the highest doses of (14 C]-S(+)-ketoprofen. When the pharmacokinetic calculations were normalized to the dose of (14 C]-S(+)-ketoprofen, we found no statistically significant differences among the normalized AUC and Cmax values of the five treatments. Therefore, S(+) ketoprofen absorption was linear and was not influenced by the presence of R(-) ketoprofen. Furthermore, there were no significant differences in tmax values among treatments, indicating that the rate of S(+)-ketoprofen absorption was also unaffected by the presence of R(-)-ketoprofen. PMID- 29023869 TI - Pharmacokinetics of Dexketoprofen Trometamol in Healthy Volunteers After Single and Repeated Oral Doses. AB - The pharmacokinetics of dexketoprofen trometamol were evaluated in two studies using healthy volunteers. In the first study, the relative bioavailability of a single oral capsule of dexketoprofen free acid 25 mg or dexketoprofen trometamol 25 mg (given as 37 mg of the trometamol salt) was compared to ketoprofen 50 mg in 18 healthy volunteers. In the second study, the pharmacokinetics and tolerability of oral dexketoprofen trometamol in tablet form were evaluated after either a single 25 mg dose (24 volunteers) or a repeated dose of 25 mg twice daily for 7 days (12 volunteers). The absorption of dexketoprofen from dexketoprofen trometamol capsules was bioequivalent to that of ketoprofen. On the other hand, the extent of absorption of dexketoprofen free acid was significantly lower than that for ketoprofen. Dexketoprofen trometamol showed the most rapid absorption rate, with highest Cmax and shortest tmax values, whereas dexketoprofen free acid had the slowest absorption rate, and ketoprofen had an intermediate absorption rate. After repeated-dose administration of dexketoprofen trometamol, the pharmacokinetic parameters were similar to those obtained after single doses, indicating that no drug accumulation occurred. Dexketoprofen trometamol was well tolerated, with no clinically relevant adverse events reported. PMID- 29023870 TI - Clinical Comparison of Dexketoprofen Trometamol and Dipyrone in Postoperative Dental Pain. AB - A total of 125 outpatients with moderate to severe pain after surgical removal of one impacted third molar were randomly assigned to receive dexketoprofen trometamol 12.5 or 25 mg or dipyrone 575 mg. For first-dose assessments, patients rated their pain intensity and its relief at regular intervals. From 60 min post dose to the end of the 6-h observation period, both doses of dexketoprofen trometamol had higher pain relief scores than dipyrone: Between 3 and 6 h the differences were statistically significant. In addition, peak measures (PIDmax and PARmax ) were statistically superior after both doses of dexketoprofen trometamol compared to dipyrone. The overall efficacy assessed at the end of the first-dose phase was rated as good or excellent by 90%, 83.3%, and 70% of patients receiving dexketoprofen trometamol 25 mg, dexketoprofen trometamol 12.5 mg, and dipyrone, respectively. The number of patients who required remedication during the 6-h period was significantly lower in both dexketoprofen groups. Repeated-dose data were also obtained. No significant differences were found in the efficacy after repeated doses, the number of doses taken, or the mean time elapsed between doses. The overall efficacy at the end of the repeated-dose phase was rated as good or excellent by 84.2%, 66.7%, and 70% of patients receiving dexketoprofen trometamol 25 mg, dexketoprofen trometamol 12.5 mg, and dipyrone, respectively. The frequency of adverse events was similar for all treatments and no serious adverse events were reported during the study. PMID- 29023871 TI - Comparison of the Efficacy and Tolerability of Dexketoprofen and Ketoprofen in the Treatment of Primary Dysmenorrhea. AB - Dexketoprofen, the pure S(+)-enantiomer of ketoprofen, is a promising new analgesic, but few clinical trials have yet examined its efficacy and tolerability. In this study, patients with a history of primary dysmenorrhea were treated with dexketoprofen doses of 12.5 and 25 mg, ketoprofen 50 mg, and placebo using a randomized, four-way crossover design. Efficacy analyses showed that dexketoprofen 12.5 and 25 mg and racemic ketoprofen 50 mg significantly reduced pain intensity compared with placebo from 1 h after dose to 4-6 h after dose. Interestingly, dexketoprofen at 12.5 mg was significantly superior to placebo at 30 min after dose. Mean pain relief scores also demonstrated that both doses of dexketoprofen and racemic ketoprofen were significantly superior to placebo at 1 6 h after the first dose. No indices of analgesic efficacy showed any significant differences between the two doses of dexketoprofen or between dexketoprofen and ketoprofen. After repeated dose administration, similar results were obtained. There were no significant effects of any treatment on activities of daily living, menstrual flow, or associated symptoms. Dexketoprofen was effective, well tolerated, and had no difference in the incidence of adverse events compared to ketoprofen or placebo. PMID- 29023873 TI - Juvenile elastoma without germline mutations in LEMD3 gene: A case of Buschke Ollendorff syndrome? AB - We report the case of a 6-year-old Caucasian girl with clinical and histopathologic features of Buschke-Ollendorff syndrome. Histologic examination of skin lesions showed thick, curly, elastic fibers in the derma. Bone lesions compatible with Buschke-Ollendorff syndrome were found in the girl's mother. Mutations in LEMD3 are pathogenic for Buschke-Ollendorff syndrome. Analysis of all exons and exon-intron junctions of LEMD3 did not reveal any germline mutations. PMID- 29023872 TI - Cell death markers in patients with cirrhosis and acute decompensation. AB - : The aims of this study were to determine the role of cell death in patients with cirrhosis and acute decompensation (AD) and acute on chronic liver failure (ACLF) using plasma-based biomarkers. The patients studied were part of the CANONIC (CLIF Acute-on-Chronic Liver Failure in Cirrhosis) study (N = 337; AD, 258; ACLF, 79); additional cohorts included healthy volunteers, stable patients with cirrhosis, and a group of 16 AD patients for histological studies. Caspase cleaved keratin 18 (cK18) and keratin 18 (K18), which reflect apoptotic and total cell death, respectively, and cK18:K18 ratio (apoptotic index) were measured in plasma by enzyme-linked immunosorbent assay. The concentrations of cK18 and K18 increased and the cK18:K18 ratio decreased with increasing severity of AD and ACLF (P < 0.001, respectively). Alcohol etiology, no previous decompensation, and alcohol abuse were associated with increased cell death markers whereas underlying infection was not. Close correlation was observed between the cell death markers and, markers of systemic inflammation, hepatic failure, alanine aminotransferase, and bilirubin, but not with markers of extrahepatic organ injury. Terminal deoxynucleotidyl transferase dUTP nick-end labeling staining confirmed evidence of greater hepatic cell death in patients with ACLF as opposed to AD. Inclusion of cK18 and K18 improved the performance of the CLIF-C AD score in prediction of progression from AD to ACLF (P < 0.05). CONCLUSION: Cell death, likely hepatic, is an important feature of AD and ACLF and its magnitude correlates with clinical severity. Nonapoptotic forms of cell death predominate with increasing severity of AD and ACLF. The data suggests that ACLF is a heterogeneous entity and shows that the importance of cell death in its pathophysiology is dependent on predisposing factors, precipitating illness, response to injury, and type of organ failure. (Hepatology 2018;67:989-1002). PMID- 29023874 TI - Multidisciplinary studies of wildlife trade in primates: Challenges and priorities. AB - Wildlife trade is increasingly recognized as an unsustainable threat to primate populations and informing its management is a growing focus and application of primatological research. However, management policies based on ecological research alone cannot address complex socioeconomic or cultural contexts as drivers of wildlife trade. Multidisciplinary research is required to understand trade complexity and identify sustainable management strategies. Here, we define multidisciplinary research as research that combines more than one academic discipline, and highlight how the articles in this issue combine methods and approaches to fill key gaps and offer a more comprehensive understanding of underlying drivers of wildlife trade including consumer demand, enforcement patterns, source population status, and accessibility of targeted species. These articles also focus on how these drivers interact at different scales, how trade patterns relate to ethics, and the potential effectiveness of different policy interventions in reducing wildlife trade. We propose priorities for future research on primate trade including expanding from multidisciplinary to interdisciplinary research questions and approaches co-created by research teams that integrate across different disciplines such as cultural anthropology, ecology, economics, and public policy. We also discuss challenges that limit the integration of information across disciplines to meet these priorities. PMID- 29023875 TI - Optimal endpoint for catheter ablation of longstanding persistent atrial fibrillation: A randomized clinical trial. AB - BACKGROUND: In longstanding persistent atrial fibrillation (LPeAF), the ideal endpoint of ablation remains to be determined. This study was to explore the value of pursuing AF termination or no with the same strategy during ablation on the long-term outcomes in patients with LPeAF. METHODS: Utilized "CCL" strategy is a fixed ablation approach consisting of circumferential pulmonary vein antrum isolation, ablation of complex fractionated atrial electrogram, and linear ablation between two anatomical structures (the mitral isthmus, left atrial roof). Note that 400 patients were randomized to group A (technical endpoint) and group B (pursuing AF termination). RESULTS: A group with technical endpoint had lower rate of acute AF termination (AF->sinus rhythm, 3.5% vs 18.1%; AF->atrial tachycardia, 23.7% vs 44.7%; P < 0.01) and shorter duration of ablation (164.9 +/ 20.8 vs 223.4 +/- 24.9, P < 0.01), radiofrequency delivery time (69.8 +/- 18.1 vs 102.2 +/- 26.3, P < 0.01), and x-ray exposure time (18.2 +/- 8.8 vs 27.9 +/- 12.4, P < 0.01) than those in B group (pursuing AF termination). During follow up, freedom from atrial arrhythmias did not differ between the two groups after a single ablation procedure (46.5% vs 54.3%, P=0.12) and the final ablation procedure (60.1% vs 65.8%, P = 0.24). CONCLUSION: In patients of LPeAF, pursuing AF termination during ablation was associated with similar long-term clinical outcome compared to that with technical endpoint. Ablation to termination is not the best strategy during ablation. PMID- 29023876 TI - MRI assessment of treatment delivery for interstitial photodynamic therapy of high-grade glioma in a preclinical model. AB - BACKGROUND: High-grade gliomas are primary brain tumors that have shown increasing incidence and unfavorable outcomes. Local control is crucial to the management of this pathology. Photodynamic therapy (PDT), based on the light induced activation of a photosensitizer (PS), achieves local treatment by inducing selective lesions in tumor tissue. OBJECTIVES: Previous studies have reported the outcomes of PDT for glioblastoma via immunohistological data. Our study aimed to evaluate MRI findings, including diffusion, and perfusion sequences, compared with immunohistological data from the same population to address the efficiency of light fractionation. MATERIALS AND METHODS: Twenty-six "nude" rats grafted with human U87 cells into the right putamen underwent PDT. After PS precursor (5-ALA) intake, an optical fiber was introduced into the tumor. The rats were randomized into the following groups: those without illumination and those that received two or five fractions of light. Treatment effects were assessed with early high-field MRI to measure the volume of necrosis and edema using diffusion and perfusion sequences; the MRI results were compared with immunohistology results, including necrosis and apoptosis markers. RESULTS: Elevated diffusion values were observed on MRI in the centers of the tumors of the treated animals, especially in the 5-fraction group (P < 0.01). Perfusion was decreased around the treatment site, especially in the 5-fraction group (P = 0.024). The MRI findings were consistent with previously published histological data. The median volume of necrosis was significantly different between the sham group and treated groups, 0 mm3 versus 2.67 mm3 , P < 0.001. The same trend was previously observed in histology data when grading the absence or presence of necrosis and when the presence of necrosis was significantly more predominant for the treated group than for the untreated group (P < 001). Additionally, cell death represented by apoptosis marker data (TUNEL method) was significantly higher in the 5-fraction group than in the 2-fraction group (P = 0.01). CONCLUSION: Diffusion and perfusion MRI revealed histological lesions. Interstitial PDT (iPDT) induced specific lesions in the tumor tissue, which were observed with MRI and confirmed by histopathological analysis. Thus, MRI may provide a non-invasive and reliable tool to assess treatment outcomes after PDT. Lasers Surg. Med. 50:460-468, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29023877 TI - Letter: older age and male gender increase the risk of hepatocellular carcinoma after hepatitis B surface antigen (HBsAg) seroclearance. PMID- 29023878 TI - Letter: low rates of HBV serology testing in patients with chronic hepatitis C receiving direct acting antivirals. PMID- 29023879 TI - Editorial: a novel approach to monitor mucosal healing in coeliac disease-as simple as shifting goalposts? PMID- 29023880 TI - Letter: low rates of HBV serology testing in patients with chronic hepatitis C receiving direct acting antivirals - Authors' reply. PMID- 29023881 TI - Review article: the role of the microcirculation in liver cirrhosis. AB - BACKGROUND: Intrahepatic microvascular derangements and microcirculatory dysfunction are key in the development of liver cirrhosis and its associated complications. While much has been documented relating to cirrhosis and the dysfunction of the microcirculation in the liver parenchyma, far less is known about the state of the extrahepatic microcirculation and the role this may have in the pathogenesis of multiple organ failure in end stage liver cirrhosis. AIM: To provide an update on the role of the microcirculation in the pathophysiology of cirrhosis and its associated complications and briefly discuss some of the imaging techniques which may be used to directly investigate the microcirculation. METHODS: A Medline literature search was conducted using the following search terms: 'cirrhosis', 'microcirculation', 'circulation', 'systemic', 'inflammation', 'peripheral', 'hepatorenal' and 'hepatopulmonary'. RESULTS: Significant heterogeneous microvascular alterations exist in patients with cirrhosis. Data suggest that the systemic inflammation, associated with advanced cirrhosis, induces microcirculatory dysregulation and contributes to haemodynamic derangement. The resultant vasoconstriction and hypoperfusion in the systemic extrahepatic microvasculature, is likely to be instrumental in the pathophysiology of organ failure in decompensated cirrhosis, however the mechanistic action of vasoactive agents used to correct the circulatory disturbance of advanced cirrhosis is poorly understood. CONCLUSIONS: Further research into the role of the microcirculation in patients with liver cirrhosis, will improve physicians understanding of the pathophysiology of cirrhosis, and may provide a platform for real time evaluation of an individual's microcirculatory response to vasoactive mediators, thus guiding their therapy. PMID- 29023882 TI - Editorial: a novel approach to monitor mucosal healing in coeliac disease-as simple as shifting goalposts? Authors' reply. PMID- 29023883 TI - Editorial: the role of statins in the treatment of alcohol-related cirrhosis - Authors' reply. PMID- 29023884 TI - Editorial: do thiopurines and biologics decrease the risk of colectomy? PMID- 29023885 TI - Letter: immunogenicity of infliximab originator vs. CT-P13 in IBD patients authors' reply. PMID- 29023886 TI - Editorial: optimising non-invasive screening for advanced liver fibrosis in NAFLD. PMID- 29023887 TI - Letter: the outcome of ulcerative colitis patients undergoing pouch surgery may be determined by pre-surgical factors. Authors' reply. PMID- 29023888 TI - Editorial: do thiopurines and biologics decrease the risk of colectomy? Authors' reply. PMID- 29023889 TI - Letter: immunogenicity of infliximab originator vs. CT-P13 in IBD patients. PMID- 29023890 TI - Letter: the outcome of ulcerative colitis patients undergoing pouch surgery may be determined by pre-surgical factors. PMID- 29023891 TI - Editorial: the role of statins in the treatment of alcohol-related cirrhosis. PMID- 29023892 TI - Labelling with positron emitters of pnicogens and chalcogens. AB - The increasing importance of the positron emission tomography (PET) in clinical diagnosis led to the development of a multitude of radiotracers labelled with positron-emitting radionuclides of groups 15 (pnicogens) and 16 (chalcogens) of the periodic table of elements. The positron emitters of the endogenous occurring elements nitrogen, phosphorus, oxygen, and sulphur are characterized by very short half-lives compared with the most commonly used PET radionuclides carbon-11 or fluorine-18. Therefore, the potential of their synthesis and possible applications in PET is challenging and limited. On the other hand, the nonstandard positron emitters arsenic-72, arsenic-74, and selenium-73 have half lives in the range of hours to days and, thus, are of interest for PET studies of processes with long biological half-lives, but novel methods have to be developed for their application, especially in the no-carrier-added state. This review summarizes recent research concerning the positron emitters of pnicogens and chalcogens for radiolabelling applications. PMID- 29023893 TI - Analysis of renal blood flow and renal volume in normal fetuses and in fetuses with a solitary functioning kidney. AB - OBJECTIVE: To evaluate renal blood flow and renal volume for the prediction of postnatal renal function in fetuses with solitary functioning kidney (SFK). METHODS: Seventy-four SFK fetuses (unilateral renal agenesis [12], multicystic dysplastic kidney [36], and severe renal dysplasia [26]) were compared with 58 healthy fetuses. Peak systolic velocity (PSV), pulsatility index (PI), and resistance index (RI) of the renal artery (RA) were measured; 2D and 3D (VOCAL) volumes were calculated. Renal length and glomerular filtration rate (GFR) were obtained in SFK children (2 years). RESULTS: Compared with the control group, the PSV RA was significantly lower in nonfunctioning kidneys and significantly higher in SFK. Volume measurements indicated a significantly larger volume of SFK compared with healthy kidneys. All but 4 children had GFR above 70 mL/min/1.73 m2 , and compensatory hypertrophy was present in 69% at 2 years. PSV RA and SFK volume correlated with postnatal renal hypertrophy. No correlation between prenatal and postnatal SFK volume and GFR at 2 years was demonstrated. CONCLUSION: Low PSV RA might have a predictive value for diagnosing a nonfunctioning kidney in fetuses with a SFK. We demonstrated a higher PSV RA and larger renal volume in the SFK compared with healthy kidneys. PMID- 29023894 TI - Perineal groove in female infants: A case series and literature review. AB - BACKGROUND: Perineal groove is a rare congenital malformation that is unknown to many clinicians and is often misdiagnosed. Although it may be self-resolving during childhood, this nonepithelized mucous membrane can pose the risk of local irritation and infection, particularly urinary tract infection. METHODS: A retrospective study of female infants diagnosed with a perineal groove was performed, demographic characteristics and clinical features were analyzed, and a photographic review was conducted. RESULTS: Five patients with perineal groove were observed in our clinic in 2015-16. The mean age was 14 months. None had symptoms, and no treatment was required. During follow-up of 1 year, all remained asymptomatic. CONCLUSIONS: Our retrospective review suggests that perineal groove may be an underdiagnosed condition. Most cases resolve spontaneously, but confusion in diagnosis may lead to misdiagnosis or misinterpretation of sexual abuse and unnecessary treatments. PMID- 29023895 TI - Extracellular vesicles as novel therapeutics in hepatic failure. PMID- 29023896 TI - Predicting changes in hemoglobin S after simple transfusion using complete blood counts. AB - BACKGROUND: Hemoglobin S percentages are used in the management of patients who have sickle cell disease. However, hemoglobin S measurements often are not routinely or rapidly performed. Rapid and accurate methods to estimate hemoglobin S levels after simple transfusion may improve the care of patients with sickle cell disease. STUDY DESIGN AND METHODS: A comprehensive review of the electronic medical record identified 24 stable patients with sickle cell disease who received simple red blood cell transfusions and had hemoglobin S measurements before and after the transfusion that were less than 72 hours apart. Examination of these patients identified 62 separate transfusions that met our criteria. Three simple equations that utilized complete blood count values and readily available information from the medical record were used to predict the post transfusion hemoglobin S level after transfusion (Equation 1: predicted post transfusion hemoglobin = pre-transfusion hemoglobin S * [pre-transfusion hemoglobin/post-transfusion hemoglobin]; Equation 2: predicted post-transfusion hemoglobin S = pre-transfusion hemoglobin S * [pre-transfusion hematocrit/post transfusion hematocrit]; and Equation 3: predicted post-transfusion hemoglobin S = pre-transfusion hemoglobin S * total pre-transfusion hemoglobin/[total pre transfusion hemoglobin + (red blood cell volume * 20)]). RESULTS: The predicted hemoglobin S values for all three equations showed a highly significant correlation with the measured post-hemoglobin S value. The coefficient of determination (R2 ) for Equations 1, 2, and 3 was 0.95, 0.92, and 0.97, respectively. Predicting the post-transfusion hemoglobin S value using estimates of the patient's total hemoglobin and the transfused hemoglobin (Equation 3) was the most precise. CONCLUSION: Reductions in hemoglobin S values in patients with sickle cell disease who receive simple red blood cell transfusions can be reliably predicted using complete blood cell measurements and simple arithmetic equations. PMID- 29023897 TI - ATF1 and RAS in exosomes are potential clinical diagnostic markers for cervical cancer. AB - Cervical cancer is one of the most common cancers among women worldwide. It is highly lethal yet can be treated when found in early stage. Thus, early detection is of significant important for early diagnosis of cervical cancer. Exosomes have been used as biomarkers in clinical diagnosis. It is unknown that whether blood exosomes associated with cervical cancer can be detected and if these exosomes can accurately represent the developmental stage of cervical cancer. Mouse models were made out of a relapsed cervical cancer patient's tumour sample for original and recurrent cervical cancer, and gene analysis in both tumours and exosomes in these mouse models were performed. We found that activating transcription factor 1 (ATF1) and RAS genes were significantly up-regulated in tumours of both primary and recurrent cervical cancer mouse model, and they can also be detected in the blood exosomes of the mouse model. Our results indicated that ATF1 and RAS could be potential candidate biomarkers for cervical cancer in early diagnosis. ATF1 and RAS genes were found significantly elevated in tumours of primary and recurrent cervical cancer mouse model, and they were also detected in the blood exosomes. Therefore, ATF1 and RAS could be used as a diagnostic marker for cervical cancer in the future. PMID- 29023898 TI - Impact of Ketamine Use on Adjunctive Analgesic and Sedative Medications in Critically Ill Trauma Patients. AB - BACKGROUND: Ketamine may be used to manage pain and agitation that is refractory to what are usually considered traditional agents such as fentanyl, propofol, benzodiazepines, and dexmedetomidine; however, literature describing the use of ketamine continuous infusions for this purpose in critically ill trauma patients is limited. OBJECTIVES: The primary objective of this study was to determine the impact of the initiation of a ketamine continuous infusion on sedative and analgesic use in critically ill trauma patients. Secondary objectives were to identify the patient population in which ketamine was initiated, assess the proportion of time patients were at their goal level of sedation, and determine the dosing patterns of adjunctive sedative agents. METHODS: This single-center retrospective chart review over a 19-month period included critically ill mechanically ventilated adult trauma patients in whom a ketamine continuous infusion was initiated for management of sedation and agitation. Patients who received ketamine for other indications or by the acute pain management service were not included in this evaluation. RESULTS: Thirty-six patients were included in the study. Patients in whom ketamine was initiated tended to be white men with blunt trauma. Overall, the initiation of ketamine was associated with a decrease in the amount of opioids and propofol used and an increase in the amount of ziprasidone and dexmedetomidine needed to achieve the goal Richmond Agitation Sedation Score. When compared with the time period before ketamine initiation, the proportion of time that patients achieved goal sedation was not significantly different after the addition of ketamine. CONCLUSIONS: Although the use of ketamine in critically ill mechanically ventilated adult trauma patients was associated with decreased opioid use, it was also associated with increased use of dexmedetomidine and ziprasidone to achieve and maintain sedation. Further examination of clinical outcomes associated with these differences in drug use in a larger population of trauma patients is warranted before routine use of ketamine for analgesia and sedation can be recommended. PMID- 29023899 TI - Visceral adiposity increases risk for hepatocellular carcinoma in male patients with cirrhosis and recurrence after liver transplant. AB - : Visceral adipose tissue (VAT) is a metabolically active organ, associated with higher risk of malignancies. We evaluated whether VAT is associated with the risk of hepatocellular carcinoma (HCC) in patients presenting with cirrhosis as well as HCC recurrence after liver transplantation (LT). Patients with cirrhosis (n = 678; 457 male) who were assessed for LT (289 with HCC) were evaluated for body composition analysis. Patients who underwent LT (n = 247, 168 male) were subsequently evaluated for body composition, and 96 of these patients (78 male) had HCC. VAT, subcutaneous adipose tissues, and total adipose tissues were quantified by computed tomography at the level of the third lumbar vertebra and reported as indexes (cross-sectional area normalized for height [square centimeters per square meter]). At the time of LT assessment, the VAT index (VATI) was higher in male patients with HCC compared to non-HCC patients (75 +/- 3 versus 60 +/- 3 cm2 /m2 , P = 0.001). The VATI, subcutaneous adipose tissue index, and total adipose tissue index were higher in male patients with HCC compared to non-HCC patients. By multivariate analysis, male patients with VATI >=65 cm2 /m2 had a higher risk of HCC (hazard ratio, 1.90; 95% confidence interval, 1.31-2.76; P = 0.001). In male patients with HCC who underwent LT, a VATI >=65 cm2 /m2 adjusted for Milan criteria was independently associated with higher risk of HCC recurrence (hazard ratio, 5.34; 95% confidence interval, 1.19 23.97; P = 0.03). CONCLUSION: High VATI is an independent risk factor for HCC in male patients with cirrhosis and for recurrence of HCC after LT. (Hepatology 2018;67:914-923). PMID- 29023900 TI - Durability and flexibility of chimpanzee grooming patterns during a period of dominance instability. AB - Growing evidence from studies on primates and other taxa has shown that the maintenance of long-term affiliative patterns influences fitness. Thus, understanding how individuals regulate social interactions in response to environmental and social factors contributes to our understanding of the evolutionary basis of sociality. We investigated the durability of affiliation patterns in chimpanzees across three 3-month periods of varying social uncertainty depending on the degree of stability in the male hierarchy, with a 2 year gap between each period. Periods were unstable (no clear alpha male), recently stable (new alpha male just established) and stable (alpha male in place for 2 years). We focused on three features of social exchange shared by human and non-human primates: consistency of exchanges across periods, durability of preferred partners, and degree of reciprocity in each period. We compared male-to male, female-to-female, male-to-female, and female-to-male grooming patterns. Overall, more grooming was exchanged in the stable period. Grooming patterns were not consistent across the three periods, but were only consistent between the recently stable and stable periods for female-to-female and male-to-female dyads. As predicted from the opportunistic nature of male relationships, male-to-male grooming was least likely to be correlated across all periods and males had relatively fewer durable (i.e., preferred partners in all periods) same-sex partners than females. Our predictions that grooming reciprocity would be less likely during the unstable period and in male-male dyads were only partially supported. We found grooming reciprocity in all periods for female-female dyads but only in the stable period for male-male and female-male dyads. Although long term affiliative patterns are well studied in primates, this is the first study to investigate the association between social uncertainty and durability of affiliative patterns. Our findings suggest social uncertainty influences social exchange and highlight the importance of considering group instability in studies of social relationships. PMID- 29023901 TI - Additive manufactured push-fit implant fixation with screw-strength pull out. AB - Additive manufacturing offers exciting new possibilities for improving long-term metallic implant fixation in bone through enabling open porous structures for bony ingrowth. The aim of this research was to investigate how the technology could also improve initial fixation, a precursor to successful long-term fixation. A new barbed fixation mechanism, relying on flexible struts was proposed and manufactured as a push-fit peg. The technology was optimized using a synthetic bone model and compared with conventional press-fit peg controls tested over a range of interference fits. Optimum designs, achieving maximum pull-out force, were subsequently tested in a cadaveric femoral condyle model. The barbed fixation surface provided more than double the pull-out force for less than a third of the insertion force compared to the best performing conventional press fit peg (p < 0.001). Indeed, it provided screw-strength pull out from a push-fit device (1,124 +/- 146 N). This step change in implant fixation potential offers new capabilities for low profile, minimally invasive implant design, while providing new options to simplify surgery, allowing for one-piece push-fit components with high levels of initial stability. (c) 2017 The Authors. Journal of Orthopaedic Research(r) Published by Wiley Periodicals, Inc. on behalf of the Orthopaedic Research Society. J Orthop Res 36:1508-1518, 2018. PMID- 29023904 TI - Terminating and episode of overt hepatic encephalopathy: L-ornithine-L-aspartate may have some role. PMID- 29023902 TI - An incidental finding of maternal multiple myeloma by non invasive prenatal testing. PMID- 29023903 TI - Asian Organization for Crohn's and Colitis and Asian Pacific Association of Gastroenterology consensus on tuberculosis infection in patients with inflammatory bowel disease receiving anti-tumor necrosis factor treatment. Part 1: Risk assessment. AB - Because anti-tumor necrosis factor (anti-TNF) therapy has become increasingly popular in many Asian countries, the risk of developing active tuberculosis (TB) among anti-TNF users may raise serious health problems in this region. Thus, the Asian Organization for Crohn's and Colitis and the Asian Pacific Association of Gastroenterology have developed a set of consensus statements about risk assessment, detection, and prevention of latent TB infection and management of active TB infection in patients with inflammatory bowel disease (IBD) receiving anti-TNF treatment. Twenty-three consensus statements were initially drafted and then discussed by the committee members. The quality of evidence and the strength of recommendations were assessed by using the Grading of Recommendations Assessment, Development, and Evaluation methodology. Web-based consensus voting was performed by 211 IBD specialists from nine Asian countries concerning each statement. A consensus statement was accepted if at least 75% of the participants agreed. Part 1 of the statements comprised two parts: (i) risk of TB infection during anti-TNF therapy and (ii) screening for TB infection prior to commencing anti-TNF therapy. These consensus statements will help clinicians optimize patient outcomes by reducing the morbidity and mortality related to TB infections in patients with IBD receiving anti-TNF treatment. PMID- 29023906 TI - Influence of Risk Perception on Attitudes and Norms Regarding Electronic Cigarettes. AB - The use of electronic cigarettes has grown substantially over the last few years. Currently, about 4% of adults use electronic cigarettes, about 16% of high school students report use in the past 30 days, as do approximately 11-25% of college students. A hallmark of the reduction in tobacco use has been the shift in social norms concerning smoking in public. Such norms may also drive views on acceptability of public electronic cigarette use. While normative factors have been given attention, little substantive application of the literature on risk perception has been brought to bear. The overall aim of this study was to place a cognitive-affective measure of risk perception within a model that also includes social cues for e-cigarettes, addictiveness beliefs, and tobacco use to predict perceived social acceptability for public use of e-cigarettes. To do so, a cross sectional study using an online survey was conducted among a sample of undergraduate students at a Western university (n = 395). A structural equation model showed that the acceptability of public e-cigarette use was influenced by social cues, beliefs about addiction, and cognitive risk perception, even after controlling for nicotine use. What is revealed is that cognitive assessment of e cigarette risk and perception of addictiveness had a suppressing effect on perceived acceptability of public vaping, while greater exposure to social cues exerted a countervailing effect. This is evidence of the role that risk perception and social norms may play in the increases in electronic cigarette use that have been observed. PMID- 29023905 TI - Cholangiopathy in critically ill patients surviving beyond the intensive care period: a multicentre survey in liver units. AB - BACKGROUND: The outcome of cholangiopathy developing in intensive care unit (ICU) is not known in patients surviving their ICU stay. AIM: To perform a survey in liver units, in order to clarify the course of cholangiopathy after surviving ICU stay. METHODS: The files of the liver units affiliated to the French network for vascular liver disease were screened for cases of ICU cholangiopathy developing in patients with normal liver function tests on ICU admission, and no prior history of liver disease. RESULTS: Between 2005 and 2015, 16 cases were retrieved. Extensive burns were the cause for admission to ICU in 11 patients. Serum alkaline phosphatase levels increased from day 11 (2-46) to a peak of 15 (4 32) * ULN on day 81 (12-511). Magnetic resonance cholangiography showed irregularities or frank stenosis of the intrahepatic ducts, and proximal extrahepatic ducts contrasting with a normal aspect of the distal common bile duct. Follow-up duration was 20.6 (4.7-71.8) months. Three patients were lost to follow-up; 2 patients died from liver failure and no patient was transplanted. One patient had worsening strictures of the intrahepatic bile ducts with jaundice. Nine patients had persistent but minor strictures of the intrahepatic bile ducts on MR cholangiography, and persistent cholestasis without jaundice. One patient had normal liver function tests. CONCLUSIONS: In patients surviving their ICU stay, ICU cholangiopathy is not uniformly fatal in the short term or clinically symptomatic in the medium term. Preservation of the distal common bile duct appears to be a finding differentiating ICU cholangiopathy from other diffuse cholangiopathies. PMID- 29023908 TI - Setting Priorities in Behavioral Interventions: An Application to Reducing Phishing Risk. AB - Phishing risk is a growing area of concern for corporations, governments, and individuals. Given the evidence that users vary widely in their vulnerability to phishing attacks, we demonstrate an approach for assessing the benefits and costs of interventions that target the most vulnerable users. Our approach uses Monte Carlo simulation to (1) identify which users were most vulnerable, in signal detection theory terms; (2) assess the proportion of system-level risk attributable to the most vulnerable users; (3) estimate the monetary benefit and cost of behavioral interventions targeting different vulnerability levels; and (4) evaluate the sensitivity of these results to whether the attacks involve random or spear phishing. Using parameter estimates from previous research, we find that the most vulnerable users were less cautious and less able to distinguish between phishing and legitimate emails (positive response bias and low sensitivity, in signal detection theory terms). They also accounted for a large share of phishing risk for both random and spear phishing attacks. Under these conditions, our analysis estimates much greater net benefit for behavioral interventions that target these vulnerable users. Within the range of the model's assumptions, there was generally net benefit even for the least vulnerable users. However, the differences in the return on investment for interventions with users with different degrees of vulnerability indicate the importance of measuring that performance, and letting it guide interventions. This study suggests that interventions to reduce response bias, rather than to increase sensitivity, have greater net benefit. PMID- 29023907 TI - Siblings' caring roles in families with a child with epilepsy. AB - Despite large amounts of care for chronic conditions being provided within the family, information regarding the extent to which siblings contribute to informal care practices in families where a child has a chronic condition is limited. This article draws on multiple perspective data from 24 families that had a child with epilepsy. In doing so, the article illustrates siblings' significant contribution to caring for their brother or sister and further develops the alert assistant concept. Two additional distinct caring roles that the siblings took on are also outlined - the substitute parent and parenting assistant roles. The relationship between siblings' socio-demographic characteristics and their caring responsibilities is also explored. The paper's findings are that siblings who were older, female and those in families with a higher child to parent ratio took on more caring responsibilities. Consequently, this article contributes to the currently limited literature on siblings who care for a chronically ill brother or sister by increasing understandings of different caring roles and experiences of chronic illness in families. PMID- 29023909 TI - Risks of Allergic Contact Dermatitis Elicited by Nickel, Chromium, and Organic Sensitizers: Quantitative Models Based on Clinical Patch Test Data. AB - Risks of allergic contact dermatitis (ACD) from consumer products intended for extended (nonpiercing) dermal contact are regulated by E.U. Directive EN 1811 that limits released Ni to a weekly equivalent dermal load of <=0.5 MUg/cm2 . Similar approaches for thousands of known organic sensitizers are hampered by inability to quantify respective ACD-elicitation risk levels. To help address this gap, normalized values of cumulative risk for eliciting a positive (">=+") clinical patch test response reported in 12 studies for a total of n = 625 Ni sensitized patients were modeled in relation to observed ACD-eliciting Ni loads, yielding an approximate lognormal (LN) distribution with a geometric mean and standard deviation of GMNi = 15 MUg/cm2 and GSDNi = 8.0, respectively. Such data for five sensitizers (including formaldehyde and 2-hydroxyethyl methacrylate) were also ~LN distributed, but with a common GSD value equal to GSDNi and with heterogeneous sensitizer-specific GM values each defining a respective ACD eliciting potency GMNi /GM relative to Ni. Such potencies were also estimated for nine (meth)acrylates by applying this general LN ACD-elicitation risk model to respective sets of fewer data. ACD-elicitation risk patterns observed for Cr(VI) (n = 417) and Cr(III) (n = 78) were fit to mixed-LN models in which ~30% and ~40% of the most sensitive responders, respectively, were estimated to exhibit a LN response also governed by GSDNi . The observed common LN-response shape parameter GSDNi may reflect a common underlying ACD mechanism and suggests a common interim approach to quantitative ACD-elicitation risk assessment based on available clinical data. PMID- 29023910 TI - Is mIndy a mediator of energy metabolism reprogramming in hepatocellular carcinoma induced by interleukin-6/signal transducer and activator of transcription 3 signaling? PMID- 29023911 TI - Genomic diversity and population structure of Mexican and Spanish bovine Lidia breed. AB - The Lidia bovine breed is distinguished for its low genetic exchangeability given its selection on aggressive behavior, its management uniqueness and its subdivided structure. In this study, we present a comprehensive genome-wide analysis of genetic diversity, population structure and admixture of 468 animals from Mexican and Spanish Lidia breed populations and 64 samples belonging to 10 Spanish native and American-creole breeds using 37 148 single nucleotide polymorphisms. We found similar average inbreeding values in the Lidia breed, with different distributions within groups; variability of inbreeding values among Spanish lineages was significant and no differences were found among the Mexican sub-populations. Together, the high FIS of the lineages and the behavior of the runs of homozygosity are consequences of the lineage's small effective population sizes, contributing to their inbreeding increase. Population admixture analysis discarded any influence on the genetic structure of the Lidia populations from the Spanish native and American-creole breeds. In addition, both Lidia populations depicted different genetic origins, with the exception of some Mexican individuals whose origins traced back to recent Spanish importations. PMID- 29023913 TI - Erratum. PMID- 29023912 TI - Basophils are recruited and localized at the site of tick bites in humans. PMID- 29023914 TI - Melanocytic naevi with perineurial differentiation: a distinctive variant of neurotised naevi and a diagnostic pitfall with desmoplastic melanoma. AB - AIMS: Spindle cell differentiation is not an uncommon finding in common acquired naevi, and may represent a form of neurotisation with Schwannian differentiation of melanocytes. Perineurial differentiation in this context appears to be very rare, and is only poorly documented in the literature. We therefore aimed to study this rare form of neurotisation in melanocytic naevi more comprehensively. METHODS AND RESULTS: We have identified six melanocytic tumours showing spindle cell morphology and perineurial differentiation from routine and referral material. Clinical data and follow-up were obtained, and the histological and immunohistochemical features were analysed. The tumours affected middle-aged adults (median, 48 years; range, 26-74 years), with a wide anatomical distribution and benign follow-up (median, 13 months; range, 6-48 months). All tumours were nodular and circumscribed but asymmetrical, with extension into the deep dermis and superficial subcutis. A characteristic finding was a biphasic growth pattern with a lentiginous compound naevus in the superficial aspect and abrupt transition to a prominent nodular spindle cell proliferation in the deeper reaches. Spindle cells were bland and uniform, and arranged singly and in short fascicles in a loose fibromyxoid stroma. In areas, a whorled arrangement of slender spindle cells with wavy nuclei was seen. Distinctive intratumoral hypocellular nodules and peripheral lymphoid aggregates were additional features. By immunohistochemistry, the spindle cells were mainly S100-positive melanocytes. In areas, S100-negative/epithelial membrane antigen-positive spindle cells showing coexpression of Glut-1 and claudin-1 were closely admixed. CONCLUSION: This perineurial differentiation probably represents a rare and unusual form of neurotisation. The tumours are benign but may be mistaken for desmoplastic melanoma. Awareness of and careful attention to the clinicopathological and immunohistochemical features allow reliable separation. PMID- 29023916 TI - Varicocele is associated with hypogonadism and impaired erectile function: A prospective comparative study. PMID- 29023918 TI - Scrutinizing the Genetic Underpinnings of Bone Strength. PMID- 29023915 TI - A randomized trial of obeticholic acid monotherapy in patients with primary biliary cholangitis. AB - : Obeticholic acid (OCA), a potent farnesoid X receptor agonist, was studied as monotherapy in an international, randomized, double-blind, placebo-controlled phase 2 study in patients with primary biliary cholangitis who were then followed for up to 6 years. The goals of the study were to assess the benefit of OCA in the absence of ursodeoxycholic acid, which is relevant for patients who are intolerant of ursodeoxycholic acid and at higher risk of disease progression. Patients were randomized and dosed with placebo (n = 23), OCA 10 mg (n = 20), or OCA 50 mg (n = 16) given as monotherapy once daily for 3 months (1 randomized patient withdrew prior to dosing). The primary endpoint was the percent change in alkaline phosphatase from baseline to the end of the double-blind phase of the study. Secondary and exploratory endpoints included change from baseline to month 3/early termination in markers of cholestasis, hepatocellular injury, and farnesoid X receptor activation. Efficacy and safety continue to be monitored through an ongoing 6-year open-label extension (N = 28). Alkaline phosphatase was reduced in both OCA groups (median% [Q1, Q3], OCA 10 mg -53.9% [-62.5, -29.3], OCA 50 mg -37.2% [-54.8, -24.6]) compared to placebo (-0.8% [-6.4, 8.7]; P < 0.0001) at the end of the study, with similar reductions observed through 6 years of open-label extension treatment. OCA improved many secondary and exploratory endpoints (including gamma-glutamyl transpeptidase, alanine aminotransferase, conjugated bilirubin, and immunoglobulin M). Pruritus was the most common adverse event; 15% (OCA 10 mg) and 38% (OCA 50 mg) discontinued due to pruritus. CONCLUSION: OCA monotherapy significantly improved alkaline phosphatase and other biochemical markers predictive of improved long-term clinical outcomes. Pruritus increased dose-dependently with OCA treatment. Biochemical improvements were observed through 6 years of open-label extension treatment. (Hepatology 2018;67:1890-1902). PMID- 29023919 TI - Causal narratives in public health: the difference between mechanisms of aetiology and mechanisms of prevention in non-communicable diseases. AB - Research in the health sciences has been highly successful in revealing the aetiologies of many morbidities, particularly those involving the microbiology of communicable disease. This success has helped form a narrative to be found in numerous public health documents, about interventions to reduce the burden of non communicable diseases (e.g., obesity or alcohol related pathologies). These focus on tackling the purported pathogenic factors causing the diseases as a means of prevention. In this paper, we argue that this approach has been sub-optimal. The mechanisms of aetiology and of prevention are sometimes significantly different and failure to make this distinction has hindered efforts at preventing non communicable diseases linked to diet, exercise and alcohol consumption. We propose a sociological approach as an alternative based on social practice theory. (A virtual abstract for this paper can be found at: https://www.youtube.com/channel/UC_979cmCmR9rLrKuD7z0ycA). PMID- 29023920 TI - The rise of the opioid epidemic and hepatitis C-positive organs: A new era in liver transplantation. AB - The use of hepatitis C virus (HCV)-positive organs in liver transplantation (LT) has increased in the era of direct-acting antiviral therapy. A rising demand for organs, the increased ability to effectively treat HCV infection in the transplant setting, and an unprecedented increase in HCV-positive donors have all contributed to this trend. A recent abrupt rise in opioid use in the United States has resulted in a surge of injection drug use, transmission of HCV, and opioid-related overdose deaths. Geographical areas most affected by the opioid epidemic have experienced a rapid increase in recovery and utilization of HCV positive donor organs, in which the proportion of deceased donor LTs in the United States from donors who are HCV positive has increased nearly 2-fold within the last 3 years. The prospect of expanding the organ donor pool with HCV positive donors and achieving acceptable posttransplant outcomes has generated much interest in the areas of liver, kidney, and thoracic transplantation, including the potential for transplanting organs from HCV positive donors into HCV-negative recipients. Developing strategies to ensure appropriate selection of potential recipients of HCV-positive organs, initiating timely antiviral therapy, and defining associated risks will be critical in achieving optimal posttransplant outcomes in this setting. (Hepatology 2018;67:1600-1608). PMID- 29023921 TI - Ecotoxicology: It's time for a hard re-look. PMID- 29023917 TI - Protein arginine methyl transferase 1- and Jumonji C domain-containing protein 6 dependent arginine methylation regulate hepatocyte nuclear factor 4 alpha expression and hepatocyte proliferation in mice. AB - : Alcohol is a well-established risk factor for hepatocellular carcinoma (HCC), but the mechanisms by which it promotes liver cancer are not well understood. Several studies have shown that cellular protein arginine methylation is inhibited by alcohol. Arginine methylation is controlled by the reciprocal activity of protein arginine methyltransferases, primarily protein arginine methyl transferase 1 (PRMT1), and a demethylase Jumonji C domain-containing protein 6 (JMJD6). The aim of this study was to explore the role of arginine methylation changes in alcohol pathogenesis. We found that PRMT1 activity is inhibited in livers of mice fed with alcohol compared to pair-fed mice. Using hepatocyte-specific PRMT1 knockout mice, we identified that loss of PRMT1 results in enhanced hepatocyte proliferation and a 33% increase in liver size. This increased hepatocyte proliferation was associated with reduced expression of hepatocyte nuclear factor 4 alpha (Hnf4alpha), an important regulator of liver tumorigenesis. We found that PRMT1 regulates Hnf4alpha expression directly through arginine methylation at the (Hnf4alpha) promoter. In the absence of PRMT1, JMJD6 can demethylate the Hnf4alpha promoter and suppress its expression. We were able to restore Hnf4alpha expression and abolish the increase in hepatocyte proliferation by knockdown of JMJD6 in PRMT1 knockout mice. Knockdown of JMJD6 in alcohol-fed mice similarly increased Hnf4alpha expression. We then examined whether loss of arginine methylation might play a role in alcohol associated liver cancers. We examined 25 human HCC specimens and found a strong correlation (R = 0.8; P < 0.01) between arginine methylation levels and Hnf4alpha expression in these specimens, suggesting that the above mechanism is relevant in patients. CONCLUSION: Taken together, these data suggest that PRMT1 inhibition, such as induced by alcohol, may result in epigenetic changes leading to loss of Hnf4alpha. This effect may contribute to alcohol's ability to promote liver tumors. (Hepatology 2018;67:1109-1126). PMID- 29023922 TI - The efficacy of new antiviral regimens for hepatitis C infection: Evidence from a systematic review. PMID- 29023923 TI - Treatment abandonment in children with cancer in Sub-Saharan Africa: Systematic literature review and meta-analysis. AB - AIMS: To establish and quantify the main reasons for treatment abandonment in children with cancer in Sub-Saharan Africa through a systematic review of the literature. BACKGROUND: Great advances have been made in the treatment of childhood cancer, however this requires that families are able to complete treatment. Failure to do this is referred to as treatment abandonment, which is recognized as a reason for treatment failure. DESIGN: Systematic review and meta analysis of data on the reasons for treatment abandonment in Sub-Saharan Africa. DATA SOURCES: Ovid MEDLINE 1946 to May Week 1 2017 and Embase 1974 to 2017 Week 19. Additional hand-searching was undertaken. REVIEW METHODS: Two reviewers independently screened papers and extracted the data. The R package meta was used to calculate the relative risk of treatment abandonment or the proportion of parents stating a reason. RESULTS: The relative risk of treatment abandonment was highest for not being in a research cohort; followed by mothers only having primary education, being HIV negative, parents not being employed, travel and no insurance. When parents who had abandoned treatment were asked, the most common reason was finance, followed by insurance, transport, lack of social support, their child appearing well, fear and waiting. CONCLUSIONS: More data are needed on the extent of treatment abandonment in different countries. Clinicians should encourage parents without insurance to enrol onto the relevant insurance programme straight after diagnosis, provide housing for patients and families close to the treatment centres and to develop treatment at more localized centres. PMID- 29023924 TI - A decreased peritumoral CD1a+ cell number predicts a worse prognosis in oral squamous cell carcinoma. AB - AIMS: Dendritic cells (DCs) are known to play a central role in the regulation of both innate and adaptive immunological responses, including antitumour immunity. The aim of this study was to evaluate the prognostic impact of intratumoral and peritumoral DCs in oral squamous cell carcinoma (OSCC) affecting the tongue and floor of the mouth. METHODS AND RESULTS: Immunohistochemistry for CD1a and CD83 was performed in 53 patients with OSCC in the tongue and floor of the mouth. The markers were evaluated by automated examination in intratumoral and peritumoral compartments, and the results were expressed as density of cells/mm2 . Correlations between these data and clinicopathological and survival outcomes were investigated. Depletion of peritumoral CD1a+ cells was associated with lymph node metastasis (P = 0.05), whereas depletion of peritumoral CD83+ cells was correlated with smoking history (P = 0.04), lymph node metastasis (P = 0.015), and extracapsular spread of lymph nodes (P = 0.018). Peritumoral CD1a+ was correlated with recurrence (P = 0.007) and overall survival (P = 0.03). The results of the survival analysis with the Cox proportional hazard model showed that depletion of peritumoral CD1a+ cells is an independent factor associated with overall survival and disease-free survival. CONCLUSION: Our results suggest that depletion of peritumoral CD1a+ cells is a strong independent prognostic factor, predicting a higher recurrence rates and worse survival outcomes. PMID- 29023925 TI - Radioembolization for hepatocellular carcinoma: The time has come. PMID- 29023926 TI - Hyperthyroidism in patients with ischaemic heart disease after iodine load induced by coronary angiography: Long-term follow-up and influence of baseline thyroid functional status. AB - OBJECTIVE: To study the effect of a iodine load on thyroid function of patients with ischaemic heart disease (IHD) and the long-term influence of unknown subclinical hyperthyroidism. CONTEXT: Subclinical hyperthyroidism is considered an independent risk factors for cardiovascular morbidity of patients with IHD. They routinely undergo coronary angiography with iodine contrast media (ICM) which may induce or even worsen hyperthyroidism. DESIGN: A cross-sectional study followed by a longitudinal study on patients with subclinical hyperthyroidism. PATIENTS: 810 consecutive IHD outpatients without known thyroid diseases or treatment with drugs influencing thyroid activity undergoing elective coronary angiography. MEASUREMENTS: We evaluated thyroid function either before and 1 month after ICM; patients with thyrotoxicosis at baseline or after ICM were then followed up for 1 year. RESULTS: 58 patients had hyperthyroidism at baseline (HB, 7.2%), independently associated to FT4 levels, thyroid nodules and family history of thyroid diseases. After ICM, the prevalence of hyperthyroidism was 81 (10%). Hyperthyroidism after ICM was positively predicted by baseline fT4 levels, thyroid nodules, age over 60, male gender, family history of thyroid diseases. Three months after ICM, 34 patients (4.2%) still showed hyperthyroidism (22 from HB, 13 treated with methimazole). One year after ICM, hyperthyroidism was still present in 20 patients (2.5%, all from HB, 13 treated). CONCLUSIONS: The prevalence of spontaneous subclinical hyperthyroidism in IHD is surprisingly elevated and is further increased by iodine load, particularly in patients with thyroid nodules and familial history of thyroid diseases, persisting in a not negligible number of them even after one year. PMID- 29023927 TI - Interference of hepatitis B virus dual infection in platelet count recovery in chronic hepatitis C patients with curative antiviral therapy. AB - BACKGROUND AND AIM: Hepatitis C virus infection is associated with thrombocytopenia. Thrombocytopenia recovers after viral eradication. The current study explored the rate and factors associated with platelet (PLT) recovery, which may represent the degree of liver fibrosis regression. METHODS: A total of 466 patients who achieved a sustained virological response were enrolled to compare the PLT change after a mean follow-up period of 85.5 months (range 12-163 months). RESULTS: Platelet counts increased significantly after achieving sustained virological response (from 166 +/- 55 * 103 to 201 +/- 61 * 103 u/L, P < 0.001). The median PLT count increment was 5.03 * 103 u/L per year. Logistic regression analysis revealed that factors associated with slow PLT count recovery were high pretreatment PLT counts (odds ratio [OR]/ 95% confidence intervals [CI]: 0.992/0.989-0.996, P < 0.001) and hepatitis B virus (HBV) co-infection (OR/CI: 0.416/0.220-0.785, P = 0.007). High PLT counts were the only factor associated with slow PLT recovery in patients with mild liver disease (F0-2) (OR/CI: 0.992/0.987-0.996, P < 0.001). On the other hand, HBV co-infection was the only factor associated with slow PLT recovery in patients with advanced fibrosis (OR/CI: 0.207/0.054-0.789, P = 0.02). Linear regression analysis of factors correlated to the delta PLT count change per year in patients with F0-2 included pretreatment white blood cell (beta: -0.001; CI: -0.002-0.000; P = 0.01) and pretreatment PLT counts (beta: -0.037; CI: -0.061 to -0.013; P = 0.003). HBsAg seropositivity was the only factor correlated to the delta PLT count change per year (beta: -10.193; CI: -16.752-3.635; P = 0.003) among patients with F3-4. CONCLUSIONS: Platelet counts recovered after hepatitis C virus eradication. HBV dual infection disrupted PLT count recovery, especially in CHC patients with advanced liver disease. PMID- 29023928 TI - Evaluation of medical and dental visits in New York City: Opportunities to identify persons with and at risk for diabetes mellitus in dental settings. AB - OBJECTIVE: The identification of persons with or at risk for chronic diseases is a new practice paradigm for oral healthcare. Diabetes mellitus (DM) is a chronic disease of particular importance to oral health providers. This study sought to understand healthcare utilization patterns that would support the introduction of this new practice paradigm. METHODS: The primary and oral healthcare utilization patterns of New York City (NYC) adults were assessed using data collected from the 2013 NYC Community Health Survey. We stratified healthcare utilization patterns by type of provider, insurance, DM diagnosis and DM modifiable risk factors. RESULTS: Of 6.4 million NYC adults, an estimated 676 000 (10.5%) reported a previous diagnosis of DM, and 3.9 million (69.5%) were identified with one or more modifiable risk factor for DM. Of these at risk individuals, 2.2 million (58.9%) received dental services in the past 12 months, and 545 000 (14.3%) did not see a primary care provider during the same period. Of the approximately 1.16 million adults without health insurance, an estimated 338 000 (26.2%) had a dental visit only. CONCLUSION: Healthcare utilization patterns in this urban setting suggest that oral healthcare providers can support the identification of patients with and at risk for DM who may otherwise not have the opportunity for screening. PMID- 29023930 TI - Evaluation and Treatment of Acute and Subacute Hearing Loss: A Review of Pharmacotherapy. AB - Among various forms of hearing loss, there are acute (within 72 hrs) or subacute (weeks to months) presentations that may be reversible with early pharmacological intervention. The workup of a patient presenting with hypoacusia includes the usual history and physical examination in conjunction with an audiometric assessment in order to categorize the hearing loss as conductive, sensorineural, or mixed. Sudden sensorineural hearing loss and autoimmune inner ear disease are acute and subacute forms of sensorineural hypoacusia most likely to be reversed with prompt pharmacological intervention. Systemic or local corticosteroid therapy has the most evidence of benefit in patients with sudden sensorineural hypoacusia and is the best available first line therapy noted in clinical practice guidelines. Alternative immunosuppressant therapies have not been well studied, and many have serious toxicities that further complicate the benefit risk assessment. There are no randomized comparisons of corticosteroid dosing regimens that evaluated clinically important outcomes, so expert opinion must serve as the basis for dosing recommendations. Clinicians need to involve patients with hypoacusia in the shared decision-making process, since partial or complete reversal of hearing loss can have substantial quality-of-life implications for affected patients. PMID- 29023929 TI - Friendship in War: Camaraderie and Prevention of Posttraumatic Stress Disorder Prevention. AB - Aspects of social support during combat deployment, such as unit cohesion, have been shown to affect later posttraumatic stress disorder (PTSD) development among veterans. We utilized a longitudinal database to assess how relationship quality with fellow soldiers in World War II (WWII) might be linked with postwar PTSD symptoms. Data were available on 101 men who experienced combat exposure in WWII, documented through postwar assessment. Upon study entry (1939 to 1942), data were collected on the quality of participants' early childhood relationships and their emotional adjustment during college. Data on WWII experiences were collected in 1946. Relationship quality with fellow soldiers in WWII was examined as a moderator of the link between combat exposure and postwar PTSD symptoms. Prewar emotional adjustment was examined as a mediator between quality of childhood relationships and subsequent quality of relationships quality with fellow soldiers during war. Better quality relationships with fellow soldiers attenuated (i.e., moderated) the link between combat exposure severity and PTSD symptom count, explaining a significant percent of the variance, R2 = .19, p < .001. There was also a significant indirect mediation effect of childhood relationship quality on relationships with soldiers through prewar emotional adjustment, ab = 0.02, 95% BCa CI [0.01, 0.05]. Results suggest that better peer relationship quality during deployment may reduce the likelihood of subsequent PTSD symptom development, and that the quality of early relationships may set the stage for better relationships during stressful contexts such as war. These findings have implications for PTSD risk factor screening prior to deployment, and underscore the importance of interpersonal support among soldiers during deployment. PMID- 29023931 TI - Evaluation of the right and left ventricles: An integrated approach measuring the area, length, and width of the chambers in normal fetuses. AB - INTRODUCTION: The purpose of this study was to simultaneously measure with speckle tracking software the end-diastolic ventricular area (A), basal transverse width (BW), mid-chamber transverse width (MW), and basal-apical length (BAL) in normal fetuses and those with pathology. METHODS: The 4-chamber view of the fetal heart was obtained in 200 control fetuses between 20 and 40 weeks of gestation and in 9 third-trimester fetuses with heart malformations. The mean and standard deviation for the A, BW, MW, and BAL were computed from the control fetuses and Z scores computed from the 9 fetuses with cardiac malformations. RESULTS: The A, BAL, BW, and MW were correlated with 7 somatic and age independent variables (R2 = .63-.85). The highest R2 values occurred for the head circumference, estimated fetal weight, and ultrasound mean gestational age (.82-.85). Z-score values and centiles from the 9 fetuses with cardiac malformations suggested that the A, BW, MW, and BAL were below or above the 5th and 95th centiles as expected for the corresponding ventricular pathology. CONCLUSIONS: This study reports an integrated approach to evaluate the end diastolic size of the right and left ventricular chambers and demonstrated clinical utility in fetuses with cardiac malformations. PMID- 29023932 TI - Xanthogranulomatous cholecystitis shows overlapping histological features with IgG4-related cholecystitis. AB - AIMS: Xanthogranulomatous cholecystitis (XGC), an unusual histological variant of chronic cholecystitis, is characterised by mixed foamy histiocytic and lymphoplasmocytic infiltration and fibrosis. Radiologically, the poorly defined nodular growth pattern often leads to the misinterpretation of XGC as gallbladder cancer. In this study, we aimed to identify the relationship of XGC with IgG4 related cholecystitis. METHODS AND RESULTS: We re-evaluated 57 surgically resected XGCs and 104 conventional chronic cholecystitis cases, according to the histological features observed in IgG4-related disease, including lymphoplasmocytic infiltration, storiform fibrosis, obliterative phlebitis, and IgG4-positive plasma cells. XGCs contained a significantly increased mean number of IgG4-positive plasma cells [34.8/high-power field (HPF)] as compared with conventional chronic cholecystitis (4.8/HPF; P < 0.001), and 16 XGCs (28%) harboured >50 IgG4-positive cells per HPF. Nine XGCs (16%), including one case with IgG4-related autoimmune pancreatitis, showed 'the histological features suggestive of IgG4-related disease', as described in the consensus statement regarding this condition. Extracholecystic inflammatory extension (seven cases, P = 0.009) and mass-forming lesions (eight cases, P < 0.001) were more frequently seen in XGC cases with histological features suggestive of IgG4-related disease than in cases without those microscopic changes. CONCLUSIONS: XGCs with IgG4 positive cell infiltration are considered to be mimickers, as xanthogranulomatous inflammation generally contradicts a diagnosis of IgG4-related disease and is weakly associated with other typical organ manifestations of IgG4-related disease. However, XGC may be a concurrent condition, particularly in patients with IgG4-related disease in other organs. PMID- 29023933 TI - MicroRNA 15a/16-1 suppresses aryl hydrocarbon receptor-dependent interleukin-22 secretion in CD4+ T cells and contributes to immune-mediated organ injury. AB - : Interleukin-22 (IL-22), as a link between leukocytic and nonleukocytic cells, has gained increasing attention for its pronounced tissue-protective properties. MicroRNAs, emerging as crucial immune modulators, have been reported to be involved in the production and action of various cytokines. However, the precise control of IL-22 by microRNAs and its subsequent actions remained to be elucidated. In this study, we found a negative correlation between the expression of microRNA 15a/16-1 (miR-15a/16-1) and IL-22 in the model of concanavalin A induced, immune-mediated liver injury. Knockout of miR-15a/16-1 ameliorated liver injury in an IL-22-dependent manner. Further results revealed that cluster of differentiation 4-positive (CD4+ ) T cells were the major source of IL-22 during liver injury and that the aryl hydrocarbon receptor was the direct target of miR 15a/16-1 in CD4+ T cells. In vivo and in vitro data showed that miR-15a/16-1 knockout CD4+ T cells produced more IL-22, while overexpression of miR-15a/16-1 down-regulated the IL-22 production by inhibiting the aryl hydrocarbon receptor. Moreover, transfer of miR-15a/16-1 knockout CD4+ T cells promoted tissue repair compared to wild-type CD4+ T cells by up-regulating IL-22. In addition, as a synergistic effect, IL-22 could down-regulate miR-15a/16-1 expression by activating phosphorylated signal transducer and activator of transcription 3-c myc signaling, and the decrease of miR-15a/16-1 in damaged hepatocytes contributed to IL-22-mediated tissue repair by reducing cell apoptosis and promoting cell proliferation. As further proof, we demonstrated the role of miR 15a/16-1 in controlling IL-22 production and IL-22-mediated reconstruction of the intestinal epithelial barrier in a dextran sodium sulfate-induced colitis model. CONCLUSION: Our results suggest that miR-15a/16-1 acts as a essential regulator of IL-22 and that the miR-15a/16-1-aryl hydrocarbon receptor-IL-22 regulatory axis plays a central role in tissue repair; modulation of miR-15a/16-1 might hold promise in developing new strategies to enhance IL-22-mediated tissue repair. (Hepatology 2018;67:1027-1040). PMID- 29023934 TI - Spontaneous Emergence of Legibility in Writing Systems: The Case of Orientation Anisotropy. AB - Cultural forms are constrained by cognitive biases, and writing is thought to have evolved to fit basic visual preferences, but little is known about the history and mechanisms of that evolution. Cognitive constraints have been documented for the topology of script features, but not for their orientation. Orientation anisotropy in human vision, as revealed by the oblique effect, suggests that cardinal (vertical and horizontal) orientations, being easier to process, should be overrepresented in letters. As this study of 116 scripts shows, the orientation of strokes inside written characters massively favors cardinal directions, and it is organized in such a way as to make letter recognition easier: Cardinal and oblique strokes tend not to mix, and mirror symmetry is anisotropic, favoring vertical over horizontal symmetry. Phylogenetic analyses and recently invented scripts show that cultural evolution over the last three millennia cannot be the sole cause of these effects. PMID- 29023936 TI - Understanding patterns of invasion: a novel approach to assessment of podoplanin expression in the prediction of lymph node metastasis in oral squamous cell carcinoma. AB - AIMS: Cellular motility is considered to be central to the process of metastasis, and podoplanin expression can be explored as a prospective link, owing to its ability to modulate the actin cytoskeleton. We aimed to evaluate the tumoral expression of D2-40 (monoclonal antibody against podoplanin) in pathologically neck-node-negative/positive cases (pN0/N+) to characterise the pattern of invasion, potentially explaining the role of various patterns of invasion in causing tumour metastasis. METHODS AND RESULTS: Paraffin-embedded tissue blocks of 60 oral squamous cell carcinoma cases of known nodal status were selected for immunohistochemical staining of tumour (invasive front) by D2-40 along with routine staining by haematoxylin and eosin. Various staining patterns were assessed and evaluated for D2-40 expression, and correlated with nodal status. Tumoral D2-40 expression correspondingly increased with nodal metastasis (P = 0.261). Furthermore, D2-40 staining was more efficient in detecting individual tumour cells, and also characterised the motility factor irrespective of the pattern of invasion (P = 0.001). The pattern of D2-40 staining did not show a significant association with tumour grade, indicating that motility is an overlooked, albeit important, component of the pattern of invasion in routine histological grading. CONCLUSIONS: D2-40 expression successfully identifies the motility profile of tumour, irrespective of the pattern of invasion. The presence of larger motile islands in the tumour cohort supports the concept of 'collective cell migration'. Podoplanin also aids evasion of immune responses by inducing platelet aggregation over tumour cells, thereby favouring distant metastasis. A multivariate model using immunohistochemical staining with D2-40 provides greater sensitivity for the prediction of lymph node metastasis. PMID- 29023937 TI - Can botulinum toxin cause chronic muscle weakness? PMID- 29023938 TI - A Pharmacist-Led Program to Evaluate and Reduce Polypharmacy and Potentially Inappropriate Prescribing in Older HIV-Positive Patients. AB - OBJECTIVE: The goal of this pharmacist-led study was to utilize two validated instruments, Beers Criteria and Screening Tool of Older Persons' Potentially Inappropriate Prescriptions (STOPP), to assess potentially inappropriate prescribing (PIP) in older patients infected with the human immunodeficiency virus (HIV) and evaluate pharmacist interventions. DESIGN: Prospective randomized interventional trial. SETTING: Large urban clinic providing interdisciplinary primary and HIV care for ~2700 HIV-positive publicly insured patients. DATA SOURCE: A computerized electronic record search was conducted for all patients who met the two search criteria: 50 years and older, and a primary care appointment within the last 12 months. PATIENTS: After identification of 857 patients meeting the search criteria, 324 patients were randomly selected and contacted, resulting in 248 patients assessed. MEASUREMENTS AND MAIN RESULTS: Patients had a mean age of 58 years, 71% male, 44% white, and a mean CD4 count of 536 cells/mm3 . Common comorbidities included hypertension (56%), depression (52%), asthma/chronic obstructive pulmonary disease (48%), dyslipidemia (39%), coronary artery disease (27%), and diabetes (22%). Patients sampled were prescribed a mean of 11.6 +/- 5.7 concomitant medications (excluding antiretrovirals) with 35% receiving at least 16 medications. PIP was identified in 54% and 63% of patients using the STOPP and Beers Criteria, respectively. Twenty-five contraindicated drug interactions were identified in 20 patients. After the pharmacist visit, at least 69% of patients had at least one medication discontinued with almost 10% having six or more medications discontinued. More than 40% of patients had at least one Beers or STOPP criteria that required immediate correction by the pharmacist. CONCLUSIONS: Results suggest that targeting individuals with 11 or more chronic medications would have the highest yield and greatest impact. Pharmacist-led review of medication prescribing using Beers and STOPP criteria revealed a large number of PIP, many amenable to immediate clinical pharmacist intervention. PMID- 29023935 TI - Exosome miR-335 as a novel therapeutic strategy in hepatocellular carcinoma. AB - Hepatocellular carcinoma (HCC) is a common and deadly cancer. Most cases of HCC arise in a cirrhotic/fibrotic liver, indicating that environment may play a paramount role in cancer genesis. Previous studies from our group and others have shown that, in desmoplastic cancers, there is a rich intercellular communication between activated, cancer-associated fibroblasts and cancer cells. Moreover, extracellular vesicles (EVs), or exosomes, have been identified as an important arm of this intercellular communication platform. Finally, these studies have shown that EVs can carry microRNA (miR) species in vivo and deliver them to desmoplastic cancers. The precise role played by activated liver fibroblasts/stellate cells in HCC development is insufficiently known. Based on previous studies, it appears plausible that activated fibroblasts produce signals carried by EVs that promote HCC genesis. In the current study, we first hypothesized and then demonstrated that stellate cell-derived EVs 1) can be loaded with an miR species of choice (miR-335-5p); 2) are taken up by HCC cells in vitro and more importantly in vivo; 3) can supply the miR-335-5p cargo to recipient HCC cells in vitro as well as in vivo; and 4) inhibit HCC cell proliferation and invasion in vitro as well as induce HCC tumor shrinkage in vivo. Finally, we identified messenger RNA targets for miR-335 that are down regulated after treatment with EV-miR-335-5p. This study informs potential therapeutic strategies in HCC, whereby stellate cell-derived EVs are loaded with therapeutic nucleic acids and delivered in vivo. (Hepatology 2018;67:940-954). PMID- 29023939 TI - Comparing a novel hand held device (Peritron+) to standard urodynamics in measuring intravesical pressure. AB - AIMS: Peritron+ is a new handheld device, which can be attached to a urethral catheter to measure intravesical pressures (Pves). The goal of this study was to assess if Pves recorded by standard urodynamics (UDs) are comparable to those recorded by the Peritron+. METHODS: Patients with voiding dysfunction and an indication for UD underwent measurement of Pves with nonvideo UD and Peritron+. Pves were recorded at volumes of 50, 100, and 200 mL for the supine and sitting positions. A failure of the Peritron+ was considered to be a discrepancy of Pves values >3 cmH2 O between Peritron+ and UD recordings. Two-way ANOVA was used to assess for statistical significance. P-values < 0.05 were considered significant. RESULTS: Ten female patients, mean age 51 years old, were enrolled in the study. The difference in Pves measurements between Peritron+ and UD were <=3 cmH2 O at all bladder volumes measured in a supine and sitting positions. There were no adverse events and there were no malfunctions of the Peritron+ device during the study. CONCLUSIONS: Peritron+ handheld device accurately assessed Pves at different intravesical volumes when compared to UD measurements. The Peritron+ is a simple and safe device, which can be used in the office by a clinician and at home by a patient to monitor Pves and help to select patients who may require standard UD re-evaluation. This will be a valuable tool in managing patients with neurogenic and nonneurogenic bladders who are at a risk of upper urinary tract deterioration. PMID- 29023940 TI - Milia: a useful clinical marker of CYLD mutation carrier status. PMID- 29023941 TI - Mechanical Ventilation for Duchenne Muscular Dystrophy: Sinner or Saint? PMID- 29023942 TI - A review of tensor-based methods and their application to hospital care data. AB - In many situations, a researcher is interested in the analysis of the scores of a set of observation units on a set of variables. However, in medicine, it is very frequent that the information is replicated at different occasions. The occasions can be time-varying or refer to different conditions. In such cases, the data can be stored in a 3-way array or tensor. The Candecomp/Parafac and Tucker3 methods represent the most common methods for analyzing 3-way tensors. In this work, a review of these methods is provided, and then this class of methods is applied to a 3-way data set concerning hospital care data for a hospital in Rome (Italy) during 15 years distinguished in 3 groups of consecutive years (1892-1896, 1940 1944, 1968-1972). The analysis reveals some peculiar aspects about the use of health services and its evolution along the time. PMID- 29023943 TI - Experimental Evidence From Newborn Chicks Enriches Our Knowledge on Human Spatial Numerical Associations. AB - Nunez and Fias raised concerns on whether our results demonstrate a linear number space mapping. Patro and Nuerk urge caution on the use of animal models to understand the origin (cultural vs. biological) of the orientation of spatial numerical association. Here, we discuss why both objections are unfounded. PMID- 29023944 TI - Reconsidering the H&E stain as the gold standard in assessing the depth of burn wounds. AB - While histological examination is considered by most as the gold standard for burn depth assessment, it has no practical use in the clinical setting. It has, however, been used in the research setting, as a mean for evaluating emerging techniques of depth measurement. Due to the limitations of the H&E stain, other stains have also been explored, such as lactate dehydrogenase (LDH), as presented in this issue, in "Improving the Histologic Characterization of Burn Depth." As the determination of burn depth is not a typical subject in dermatopathology, a summary of selected techniques and the possible role for the LDH stain in future research, is described herein. PMID- 29023945 TI - MicroRNA-29a inhibits proliferation and motility of schwannoma cells by targeting CDK6. AB - MicroRNA-29 (miR-29) family is involved in various types of cancer regulation. Although miR-29 family was shown to play an inhibitory role in tumorigenesis, the effect of miR-29a expression on schwannoma cells still remains unclear. In this study, we aimed to explore the role of miR-29 family in schwannoma. The expressions of miR-29a, miR-29b, and miR-29c were detected in the Schwann tissues and cell lines using qRT-PCR. The effect of miR-29a, miR-29b, and miR-29c on cell viability, migration, invasion, and apoptosis was tested. Then, the regulatory relationship between miR-29a and CKD6 was detected using qRT-PCR, Western blot, and luciferase assay. Finally, the phosphorylation levels of mainly factors in JNK and p38MAPK/ERK pathways were analyzed by Western blot. The expression of miR 29a, miR-29b, and miR-29c was downregulated in Schwann tissues and cell lines. Cell viability, migration, invasion were decreased, while apoptosis was increased when miR-29a, miR-29b, and miR-29c overexpression. We further found that miR-29a negatively regulated expression of CDK6. Then, knockdown of miR-29a promoted cell viability, migration, invasion, and inhibited apoptosis in schwannoma cells by upregulating CDK6 expression. In addition, the overexpression of miR-29a downregulated CDK6 expression by deactivation of JNK and p38MAPK/ERK pathways. Our data suggested that miR-29a could play an important role in inhibiting proliferation and motility of cancerous Schwann cells, and may suppress tumor growth through upregulation of CDK6. PMID- 29023946 TI - A novel recombinant anti-epidermal growth factor receptor peptide vaccine capable of active immunization and reduction of tumor volume in a mouse model. AB - Over-expression of epidermal growth factor receptor (EGFR) has been reported in a number of human malignancies. Strong expression of this receptor has been associated with poor survival in many such patients. Active immunizations that elicit antibodies of the desired type could be an appealing alternative to conventional passive immunization. In this regard, a novel recombinant peptide vaccine capable of prophylactic and therapeutic effects was constructed. A novel fusion recombinant peptide base vaccine consisting of L2 domain of murine extra cellular domain-EGFR and EGFR mimotope (EM-L2) was constructed and its prophylactic and therapeutic effects in a Lewis lung carcinoma mouse (C57/BL6) model evaluated. Constructed recombinant peptide vaccine is capable of reacting with anti-EGFR antibodies. Immunization of mice with EM-L2 peptide resulted in antibody production against EM-L2. The constructed recombinant peptide vaccine reduced tumor growth and increased the survival rate. Designing effective peptide vaccines could be an encouraging strategy in contemporary cancer immunotherapy. Investigating the efficacy of such cancer immunotherapy approaches may open exciting possibilities concerning hyperimmunization, leading to more promising effects on tumor regression and proliferation. PMID- 29023947 TI - Genetic characterization of an avian H4N6 influenza virus isolated from the Izumi plain, Japan. AB - An influenza A virus of H4N6 subtype was isolated from the Izumi plain, Japan, in 2013. Genetic analyses revealed that two viral genes (M and NS gene segments) of this isolate were genetically distinct from those of the H4N6 virus isolated from the same place in 2012. Furthermore, three viral genes (PB2, PB1 and M gene segments) of this isolate share high similarity with those of the North American isolates of 2014. These results suggest a high frequency of genetic reassortment of avian influenza viruses in Asian waterfowl and intercontinental movements of avian influenza viruses via migratory waterfowl. PMID- 29023949 TI - More about molluscum pendulum/acrochordons in tuberous sclerosis complex. PMID- 29023948 TI - Linear IgA bullous dermatosis associated with amyotrophic lateral sclerosis. PMID- 29023950 TI - Synthesis and evaluation of Tc-99m and fluorescence-labeled elastin-derived peptide, VAPG for multimodal tumor imaging in murine tumor model. AB - We developed a Tc-99m and fluorescence-labeled peptide, Tc-99m TAMRA-GHEG-ECG VAPG to target tumor cells and evaluated the diagnostic performance as a dual modality imaging agent for tumor in a murine model. TAMRA-GHEG-ECG-VAPG was synthesized by using Fmoc solid-phase peptide synthesis. Radiolabeling of TAMRA GHEG-ECG-VAPG with Tc-99m was done by using ligand exchange via tartrate. Binding affinity and in vitro cellular uptake studies were performed. Gamma camera imaging, biodistribution, and ex vivo imaging studies were performed in murine models with SW620 tumors. Tumor tissue slides were prepared and analyzed with immunohistochemistry by using confocal microscopy. After radiolabeling procedures with Tc-99m, Tc-99m TAMRA-GHEG-ECG-VAPG complexes were prepared in high yield (>96%). The Kd of Tc-99m TAMRA-GHEG-ECG-VAPG determined by saturation binding was 16.8 +/- 3.6 nM. Confocal microscopy images of SW620 cells incubated with TAMRA GHEG-ECG-VAPG showed strong fluorescence in the cytoplasm. Gamma camera imaging revealed substantial uptake of Tc-99m TAMRA-GHEG-ECG-VAPG in tumors. Tumor uptake was effectively blocked by the coinjection of an excess concentration of VAPG. Specific uptake of Tc-99m TAMRA-GHEG-ECG-VAPG was confirmed by biodistribution, ex vivo imaging, and immunohistochemistry stain studies. In vivo and in vitro studies revealed substantial uptake of Tc-99m TAMRA-GHEG-ECG-VAPG in tumor cells. Tc-99m TAMRA-GHEG-ECG-VAPG has potential as a dual-modality tumor imaging agent. PMID- 29023951 TI - Synthesis, 99m Tc-labeling, and preliminary biological evaluation of DTPA melphalan conjugates. AB - Melphalan (MFL) is a typical nitrogen mustard for the treatment of many types of cancer. For the purpose to develop novel 99m Tc-labeled tumor imaging agents with SPECT, MFL was directly labeled by 99m Tc using diethylene triamine pentacetate acid (DTPA) as bifunctional chelating agent. The novel ligands were successfully synthesized by conjugation of DTPA to MFL to get monosubstituted DTPA-MFL and bis substituted DTPA-2MFL. Radiolabeling was performed in high yield to get 99m Tc DTPA-MFL and 99m Tc-DTPA-2MFL, respectively, which were hydrophilic and stable at room temperature. The high initial tumor uptake with retention, good tumor/muscle ratios, and satisfactory scintigraphic images suggested the potential of 99m Tc DTPA-MFL and 99m Tc-DTPA-2MFL for tumor imaging. However, the slow normal tissue clearance would be a great obstacle. Further modification on the linker and/or 99m Tc-chelate to improve the tumor targeting efficacy and in vivo kinetic profiles is currently in progress. PMID- 29023953 TI - Comment On: Family Involvement in Managing Violence of Mental Health Patients. PMID- 29023952 TI - Pharmacokinetics and electrophysiological effects of sotalol hydrochloride in horses. AB - BACKGROUND: Arrhythmias in horses may require long-term anti-arrhythmic therapy. Unfortunately, oral anti-arrhythmic drugs for use in horses are currently scarce. In human patients and small animals, sotalol, a beta-blocker with class III anti arrhythmic properties, is often used for long-term treatment. OBJECTIVES: To determine the pharmacokinetics of sotalol at multiple oral dosages in unfasted horses, as well as the effects on electro- and echocardiographic measurements, right atrial and ventricular monophasic action potential (MAP) and effective refractory period (ERP). STUDY DESIGN: Placebo controlled, double-blinded experiment. MATERIALS AND METHODS: Six healthy, unfasted Warmblood horses were given either 0, 2, 3 or 4 mg/kg bodyweight (bwt) sotalol orally (PO) twice daily (bid) for 9 days in a randomised cross-over design. Echocardiography and surface electrocardiography were performed and plasma concentrations of sotalol and right atrial and right ventricular MAPs and ERPs were determined at steady-state conditions. Statistical analysis was performed using a repeated measures univariate analysis with post hoc Bonferroni corrections. RESULTS: Calculated mean steady-state plasma concentrations determined by nonlinear mixed-effect modelling were 287 (range 234-339), 409 (359-458) and 543 (439-646) ng/mL for 2, 3 and 4 mg/kg bwt sotalol PO bid respectively. Sotalol significantly increased the QT interval and ERPs, but, despite increasing plasma concentrations, higher dosages did not result in a progressive increase in QT interval or ERPs. Echocardiographic and other electrocardiographic measurements did not change significantly. MAP durations at 90% repolarisation were not significantly different during sotalol treatment. Besides transient local sweating, no side effects were noted. MAIN LIMITATIONS: Study size and ad libitum feeding of hay. CONCLUSIONS: Sotalol at a dose of 2, 3 and 4 mg/kg bwt PO bid increases the QT interval and ERP and might be a useful drug for long-term anti-arrhythmic therapy in horses. PMID- 29023954 TI - History of champions for changes in mental health and substance use parity. PMID- 29023955 TI - Are Insurance Companies Overstepping Boundaries and Ethics? PMID- 29023956 TI - Reply. PMID- 29023957 TI - The ethics of public policy RCTs: The principle of policy equipoise. AB - In this article, I ask whether a principle analogous to the principle of clinical equipoise should govern the design and conduct of RCTs evaluating the effectiveness of policy interventions. I answer this question affirmatively, and introduce and defend the principle of policy equipoise. According to this principle, all arms of a policy RCT must be, at minimum, in a state of equipoise with the best proven policy that is also morally and practically attainable and sustainable. For all arms of a policy RCT, policy experts must either (1) reasonably disagree about whether the trial arms are more effective than this policy, or (2) know that they are. PMID- 29023959 TI - Pembrolizumab for metastatic hepatocellular carcinoma following live donor liver transplantation: The silver bullet? PMID- 29023960 TI - "Meal realities" - An ethnographic exploration of hospital mealtime environment and practice. AB - AIM: To explore and understand patterns of mealtime culture, environment and social practice from the perspective of staff, volunteers and visitors on the hospital ward. BACKGROUND: Inadequate food intake is a common and complex problem in hospital and can lead to malnutrition. Mealtime interventions have been implemented to address this problem with limited success. A better understanding of mealtime environment and practice is needed to ascertain which interventions are more likely to be effective in addressing inadequate food intake in hospital. DESIGN: A qualitative, ethnographic approach was used to promote a comprehensive understanding of mealtime environment and practice. METHODS: Sixty-seven hours of fieldwork was conducted August-October 2015. More than 150 participants were observed and 61 unique participants were interviewed in 75 interviews. Data analysis followed an inductive, thematic approach, informed by systems and complexity theory. FINDINGS: Themes of "patient centredness" and "system" and their disharmonious interrelationship emerged. Staff, volunteers and visitors strive for patient centredness at mealtimes. The routine and structured nature of the meal and care systems was constantly in tension with providing patients the care they needed. CONCLUSION: The findings of this study expose the challenges associated with maintaining patient centredness at mealtimes in complex healthcare and foodservice systems. This facilitates a better understanding of why inadequate food intake is difficult to address in the hospital setting and highlights the need to support strategies that approach foodservice processes and nutritional care as complex and non-linear. PMID- 29023958 TI - Stroke-induced chronic systolic dysfunction driven by sympathetic overactivity. AB - OBJECTIVE: Cardiac diseases are established risk factors for ischemic stroke incidence and severity. Conversely, there is increasing evidence that brain ischemia can cause cardiac dysfunction. The mechanisms underlying this neurogenic heart disease are incompletely understood. Although it is established that ischemic stroke is associated with cardiac arrhythmias, myocardial damage, elevated cardiac enzymes, and plasma catecholamines in the acute phase, nothing is known about the delayed consequences of ischemic stroke on cardiovascular function. METHODS: To determine the long-term cardiac consequences of a focal cerebral ischemia, we subjected young and aged mice to a 30-minute transient middle cerebral artery occlusion and analyzed cardiac function by serial transthoracic echocardiography and hemodynamic measurements up to week 8 after surgery. Finally, animals were treated with metoprolol to evaluate a pharmacologic treatment option to prevent the development of heart failure. RESULTS: Focal cerebral ischemia induced a long-term cardiac dysfunction with a reduction in left ventricular ejection fraction and an increase in left ventricular volumes; this development was associated with higher peripheral sympathetic activity. Metoprolol treatment prevented the development of chronic cardiac dysfunction by decelerating extracellular cardiac remodeling and inhibiting sympathetic signaling relevant to chronic autonomic dysfunction. INTERPRETATION: Focal cerebral ischemia in mice leads to the development of chronic systolic dysfunction driven by increased sympathetic activity. If these results can be confirmed in a clinical setting, treating physicians should be attentive to clinical signs of heart failure in every patient after ischemic stroke. Therapeutically, the successful beta-blockade with metoprolol in mice could also have future clinical implications. Ann Neurol 2017;82:729-743. PMID- 29023962 TI - Microphthalmia with linear skin defects (MLS) syndrome: familial presentation. PMID- 29023961 TI - Clinical significance of small-bowel villous edema in patients with liver cirrhosis: A capsule endoscopy study. AB - BACKGROUND AND AIM: The relationship between the presence of villous edema (VE) in portal hypertensive enteropathy and clinical factors remains unclear. The aim of this study was to reveal the clinical factors related to VE in patients with liver cirrhosis (LC), and investigate the clinical significance of VE. METHODS: Between February 2009 and September 2016, 363 consecutive patients with LC underwent capsule endoscopy for diagnosing portal hypertensive enteropathy at Hiroshima University Hospital. We evaluated the relationship between the presence of VE and patients' clinical characteristics, findings of esophagogastroduodenoscopy and computed tomography, and survival time. RESULTS: Villous edema was observed in 131 patients (36%), and severe lesions were found in 71 (20%). The presence of VE was significantly greater in patients with Child Pugh classification B or C, esophageal varices, portal hypertensive gastropathy (PHG), ascites, portal vein thrombosis (PVT), and splenomegaly. In multivariate analysis, Child-Pugh class B or C, esophageal varices, PVT, and splenomegaly were significant predictive factors for the presence of VE. Severe VE was significantly greater in patients with Child-Pugh class B or C, serum albumin level <= 3.2 mg/dL, PHG, and PVT. In multivariate analysis, PHG, Child-Pugh class B or C, PVT, were significant predictive factors for severe VE. CONCLUSIONS: Clinical factors related to portal hypertension were significantly correlated with VE. In particular PVT was correlated with the appearance and exacerbation of VE. Periodic capsule endoscopy in LC patients may lead to early detection of portal hypertension and PVT. PMID- 29023964 TI - Linguistic and Perceptual Mapping in Spatial Representations: An Attentional Account. AB - Building on evidence for embodied representations, we investigated whether Spanish spatial terms map onto the NEAR/FAR perceptual division of space. Using a long horizontal display, we measured congruency effects during the processing of spatial terms presented in NEAR or FAR space. Across three experiments, we manipulated the task demands in order to investigate the role of endogenous attention in linguistic and perceptual space mapping. We predicted congruency effects only when spatial properties were relevant for the task (reaching estimation task, Experiment 1) but not when attention was allocated to other features (lexical decision, Experiment 2; and color, Experiment 3). Results showed faster responses for words presented in Near-space in all experiments. Consistent with our hypothesis, congruency effects were observed only when a reaching estimate was requested. Our results add important evidence for the role of top-down processing in congruency effects from embodied representations of spatial terms. PMID- 29023965 TI - A Framework for Understanding Uncertainty in Seismic Risk Assessment. AB - A better understanding of the uncertainty that exists in models used for seismic risk assessment is critical to improving risk-based decisions pertaining to earthquake safety. Current models estimating the probability of collapse of a building do not consider comprehensively the nature and impact of uncertainty. This article presents a model framework to enhance seismic risk assessment and thus gives decisionmakers a fuller understanding of the nature and limitations of the estimates. This can help ensure that risks are not over- or underestimated and the value of acquiring accurate data is appreciated fully. The methodology presented provides a novel treatment of uncertainties in input variables, their propagation through the model, and their effect on the results. The study presents ranges of possible annual collapse probabilities for different case studies on buildings in different parts of the world, exposed to different levels of seismicity, and with different vulnerabilities. A global sensitivity analysis was conducted to determine the significance of uncertain variables. Two key outcomes are (1) that the uncertainty in ground-motion conversion equations has the largest effect on the uncertainty in the calculation of annual collapse probability; and (2) the vulnerability of a building appears to have an effect on the range of annual collapse probabilities produced, i.e., the level of uncertainty in the estimate of annual collapse probability, with less vulnerable buildings having a smaller uncertainty. PMID- 29023963 TI - Prediction of phenotypic severity in mucopolysaccharidosis type IIIA. AB - OBJECTIVE: Mucopolysaccharidosis IIIA or Sanfilippo disease type A is a progressive neurodegenerative disorder presenting in early childhood, caused by an inherited deficiency of the lysosomal hydrolase sulfamidase. New missense mutations, for which genotype-phenotype correlations are currently unknown, are frequently reported, hampering early prediction of phenotypic severity and efficacy assessment of new disease-modifying treatments. We aimed to design a method to determine phenotypic severity early in the disease course. METHODS: Fifty-three patients were included for whom skin fibroblasts and data on disease course and mutation analysis were available. Patients were phenotypically characterized on clinical data as rapidly progressing or slowly progressing. Sulfamidase activity was measured in fibroblasts cultured at 37 degrees C and at 30 degrees C. RESULTS: Sulfamidase activity in fibroblasts from patients homozygous or compound heterozygous for a combination of known severe mutations remained below the limit of quantification under both culture conditions. In contrast, sulfamidase activity in fibroblasts from patients homozygous or compound heterozygous for a known mild mutation increased above the limit of quantification when cultured at 30 degrees C. With division on the basis of the patients' phenotype, fibroblasts from slowly progressing patients could be separated from rapidly progressing patients by increase in sulfamidase activity when cultured at 30 degrees C (p < 0.001, sensitivity = 96%, specificity = 93%). INTERPRETATION: Phenotypic severity strongly correlates with the potential to increase sulfamidase activity in fibroblasts cultured at 30 degrees C, allowing reliable distinction between patients with rapidly progressing or slowly progressing phenotypes. This method may provide an essential tool for assessment of treatment effects and for health care and life planning decisions. Ann Neurol 2017;82:686-696. PMID- 29023966 TI - Genotoxicity of airborne PM2.5 assessed by salmonella and comet assays in five cities of the Emilia-Romagna (Italy) mutagenicity monitoring network. AB - Airborne particulate matter (PM) has long been recognized as a potential health hazard and in 2013 was classified as carcinogenic to humans by the International Agency for Research on Cancer. In this study we evaluate and compare mutagenic and genotoxic potencies of PM2.5 collected in three seasons, from 2012 to 2015, in five Italian cities. Mutagenicity was evaluated through the Ames test on TA98 and TA100 strains and, for the measurement of PM clastogenicity, Comet assay was carried out on cultured human lung cells (A549). Organic matter, extracted from urban particulate matter, was also characterized for polycyclic aromatic hydrocarbons (PAHs) and their derivatives content. Samples collected in the colder seasons show the presence of both base pair substitution and frameshift mutagens, with enhanced mutagenic response in the absence of enzyme activation. The highest DNA damage detected with the Comet assay was induced by winter extracts, but different from Salmonella, the relative increase per cubic meter in comet tail for November samples was comparable to July ones. Comparing mutagenicity and genotoxicity with chemical concentrations we found that data from the Salmonella assay correlate with mass concentration and, to a lesser extent, with PAHs, but no association was found with their derivatives, whereas DNA damage correlate only with PAHs measured at one site. These findings demonstrate that to assess the mutagenicity and genotoxicity of complex mixtures it's necessary to use bioassays and that the chemical analysis of pollutants does not take into account the possible inhibitory or synergic effects of exposure. Environ. Mol. Mutagen. 58:719-729, 2017. (c) 2017 Wiley Periodicals, Inc. PMID- 29023967 TI - Copper toxicity and date palm (Phoenix dactylifera) seedling tolerance: Monitoring of related biomarkers. AB - Date palm (Phoenix dactylifera) seeds were exposed to different copper (Cu) solutions to examine plant stress responses. Low Cu concentrations (0.02 and 0.2 mM) caused an increase of seed germination, whereas higher Cu amounts (2 mM) significantly inhibited seed germination, delayed hypocotyl elongation, increased seedling mortality, and reduced the germination index by more than 90%. Metal related toxicity symptoms appeared after 15 d of 2 mM of Cu exposure. Biochemical activities such as amylase activity and redox balance elements were examined to study the relationship between external Cu amount and internal plant response. The present study showed that amylolytic activity was dose- and time-dependent. Likewise, H2 O2 production increased after exposure to Cu, which was correlated with thiobarbituric acid reactive substance (TBARS) accumulation. Furthermore at low Cu concentrations, superoxide dismutase (SOD) and catalase (CAT) activities increased, suggesting that date palm seed stimulated its metal homeostasis networks. However, the highest cupric ion amounts increased cell oxidant accumulation and reduced enzyme production. Gene expression level measures of P. dactylifera phytochelatin synthase (Pdpcs) and P. dactylifera metallothionein (Pdmt) encoding genes have been carried out to investigate the implication of PdPCS and PdMT proteins in Cu homeostasis and/or its sequestration. Phoenix dactylifera metallothionein induction reached a peak after 30 d of exposure to 0.2 mM of Cu. However, it was down-regulated in plants exposed to higher Cu concentrations. In the same conditions, Pdpcs was overexpressed during 1 mo of exposure before it decreased thereafter. These observations provide a new insight into date palm cell response to Cu, a metal that can be toxic but that is also an essential element. Environ Toxicol Chem 2018;37:797-806. (c) 2017 SETAC. PMID- 29023968 TI - Pregnant Metaphors and Surrogate Meanings: Bringing the Ethnography of Pregnancy and Surrogacy into Conversation in Israel and Beyond. AB - This article explores the way that surrogacy and normal pregnancy share cultural assumptions about pregnancy. Through a juxtaposition of our ethnographic studies of two groups of Jewish-Israeli women-women who have undergone "normal," low-risk pregnancies and women who have given birth as gestational surrogates-we argue that surrogacy and pregnancy emerge as potent metaphors for one another. Both pregnant women and surrogates divided their bodies into two separate realms: fetus and maternal pregnant body. Both trivialized the effect of gestational influence on fetal health, making the fetus seem detached from gestational capacities of the mother. We argue for closer scrutiny of the way local cultural priorities and experiences of pregnancy shape surrogacy and for bringing the scholarship on pregnancy and on surrogacy into deeper conversation. PMID- 29023969 TI - Calculating potential error in sodium MRI with respect to the analysis of small objects. AB - PURPOSE: To facilitate correct interpretation of sodium MRI measurements, calculation of error with respect to rapid signal decay is introduced and combined with that of spatially correlated noise to assess volume-of-interest (VOI) 23 Na signal measurement inaccuracies, particularly for small objects. METHODS: Noise and signal decay-related error calculations were verified using twisted projection imaging and a specially designed phantom with different sized spheres of constant elevated sodium concentration. As a demonstration, lesion signal measurement variation (5 multiple sclerosis participants) was compared with that predicted from calculation. RESULTS: Both theory and phantom experiment showed that VOI signal measurement in a large 10-mL, 314-voxel sphere was 20% less than expected on account of point-spread-function smearing when the VOI was drawn to include the full sphere. Volume-of-interest contraction reduced this error but increased noise-related error. Errors were even greater for smaller spheres (40-60% less than expected for a 0.35-mL, 11-voxel sphere). Image intensity VOI measurements varied and increased with multiple sclerosis lesion size in a manner similar to that predicted from theory. Correlation suggests large underestimation of 23 Na signal in small lesions. CONCLUSIONS: Acquisition specific measurement error calculation aids 23 Na MRI data analysis and highlights the limitations of current low-resolution methodologies. Magn Reson Med 79:2968-2977, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29023971 TI - A Fluid Liquid-Crystal Material with Highly Polar Order. AB - An anomalously large dielectric permittivity of ~104 is found in the mesophase temperature range (MP phase) wherein high fluidity is observed for a liquid crystal compound having a 1,3-dioxane unit in the mesogenic core (DIO). In this temperature range, no sharp X-ray diffraction peak is observed at both small and wide Bragg angles, similar to that for a nematic phase; however, an inhomogeneous sandy texture or broken Schlieren one is observed via polarizing optical microscopy, unlike that for a conventional nematic phase. DIO exhibits polarization switching with a large polarization value, i.e., P = 4.4 uC cm-2 , and a parallelogram-shaped polarization-electric field hysteresis loop in the MP phase. The inhomogeneously aligned DIO in the absence of an electric field adopts a uniform orientation along an applied electric field when field-induced polarization switching occurs. Furthermore, sufficiently larger second-harmonic generation is observed for DIO in the MP phase. Second-harmonic-generation interferometry clearly shows that the sense of polarization is inverted when the +/- sign of the applied electric field in MP is reversed. These results suggest that a unidirectional, ferroelectric-like parallel polar arrangement of the molecules is generated along the director in the MP phase. PMID- 29023972 TI - Covariate adjustment using propensity scores for dependent censoring problems in the accelerated failure time model. AB - In many medical studies, estimation of the association between treatment and outcome of interest is often of primary scientific interest. Standard methods for its evaluation in survival analysis typically require the assumption of independent censoring. This assumption might be invalid in many medical studies, where the presence of dependent censoring leads to difficulties in analyzing covariate effects on disease outcomes. This data structure is called "semicompeting risks data," for which many authors have proposed an artificial censoring technique. However, confounders with large variability may lead to excessive artificial censoring, which subsequently results in numerically unstable estimation. In this paper, we propose a strategy for weighted estimation of the associations in the accelerated failure time model. Weights are based on propensity score modeling of the treatment conditional on confounder variables. This novel application of propensity scores avoids excess artificial censoring caused by the confounders and simplifies computation. Monte Carlo simulation studies and application to AIDS and cancer research are used to illustrate the methodology. PMID- 29023970 TI - Phenotype validation in electronic health records based genetic association studies. AB - The linkage between electronic health records (EHRs) and genotype data makes it plausible to study the genetic susceptibility of a wide range of disease phenotypes. Despite that EHR-derived phenotype data are subjected to misclassification, it has been shown useful for discovering susceptible genes, particularly in the setting of phenome-wide association studies (PheWAS). It is essential to characterize discovered associations using gold standard phenotype data by chart review. In this work, we propose a genotype stratified case-control sampling strategy to select subjects for phenotype validation. We develop a closed-form maximum-likelihood estimator for the odds ratio parameters and a score statistic for testing genetic association using the combined validated and error-prone EHR-derived phenotype data, and assess the extent of power improvement provided by this approach. Compared with case-control sampling based only on EHR-derived phenotype data, our genotype stratified strategy maintains nominal type I error rates, and result in higher power for detecting associations. It also corrects the bias in the odds ratio parameter estimates, and reduces the corresponding variance especially when the minor allele frequency is small. PMID- 29023973 TI - High-resolution mass spectrometry of skin mucus for monitoring physiological impacts and contaminant biotransformation products in fathead minnows exposed to wastewater effluent. AB - High-resolution mass spectrometry is advantageous for monitoring physiological impacts and contaminant biotransformation products in fish exposed to complex wastewater effluent. We evaluated this technique using skin mucus from male and female fathead minnows (Pimephales promelas) exposed to control water or treated wastewater effluent at 5, 20, and 100% levels for 21 d, using an on-site, flow through system providing real-time exposure. Both sex-specific and non-sex specific responses were observed in the mucus metabolome, the latter suggesting the induction of general compensatory pathways for xenobiotic exposures. Altogether, 85 statistically significant treatment-dependent metabolite changes were observed out of the 310 total endogenous metabolites that were detected (156 of the 310 were annotated). Partial least squares-regression models revealed strong covariances between the mucus metabolomes and up-regulated hepatic messenger ribonucleic acid (mRNA) transcripts reported previously for these same fish. These regression models suggest that mucus metabolomic changes reflected, in part, processes by which the fish biotransformed xenobiotics in the effluent. In keeping with this observation, we detected a phase II transformation product of bisphenol A in the skin mucus of male fish. Collectively, these findings demonstrate the utility of mucus as a minimally invasive matrix for simultaneously assessing exposures and effects of environmentally relevant mixtures of contaminants. Environ Toxicol Chem 2018;37:788-796. Published 2017 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America. PMID- 29023974 TI - Diabetes-related major lower limb amputation incidence is strongly related to diabetic foot service provision and improves with enhancement of services: peer review of the South-West of England. AB - AIMS: To investigate the relationship between high diabetes-related lower limb amputation incidence and foot care services in the South-West region of England. METHODS: The introduction of 10 key elements of foot care service provision in one area of the South-West resulted in stabilization of foot ulcer incidence and sustained reduction in amputation incidence from 2007. Services introduced included administrative support, standardized general practice foot screening, improved community podiatry staffing, hospital multidisciplinary foot clinics, effective care pathways, availability of an orthotist and audit. Peer reviews of the region's diabetes foot care services were undertaken to assess delivery of these service provisions and compare this with major amputation incidence in other regions with data provided by Yorkshire and Humber Public Health Observatory Hospital Episode Statistics. Recommendations were made to improve service provision. In 2015 changes in service provision and amputation incidence were reviewed. RESULTS: Initial reviews in 2013 showed that the 3-year diabetes related major amputation incidence correlated inversely with adequate delivery of diabetes foot care services (P=0.0024, adjusted R2 =0.51). Repeat reviews in 2015 found that two or more foot care service improvements were reported by six diabetes foot care providers, with improvement in outcomes. The negative relationship between major amputation incidence and service provision remained strong both in the period 2012-2015 and in the year 2015 only (P <=0.0012, adjusted R2 =0.56, and P= 0.0005, R2 =0.62, respectively). CONCLUSIONS: Major diabetes-related lower limb amputation incidence is significantly inversely correlated with foot care services provision. Introduction of more effective service provision resulted in significant reductions in major amputation incidence within 2 years. Failure to improve unsatisfactory service provision resulted in continued high amputation incidence. PMID- 29023975 TI - Motion robust high resolution 3D free-breathing pulmonary MRI using dynamic 3D image self-navigator. AB - PURPOSE: To achieve motion robust high resolution 3D free-breathing pulmonary MRI utilizing a novel dynamic 3D image navigator derived directly from imaging data. METHODS: Five-minute free-breathing scans were acquired with a 3D ultrashort echo time (UTE) sequence with 1.25 mm isotropic resolution. From this data, dynamic 3D self-navigating images were reconstructed under locally low rank (LLR) constraints and used for motion compensation with one of two methods: a soft gating technique to penalize the respiratory motion induced data inconsistency, and a respiratory motion-resolved technique to provide images of all respiratory motion states. RESULTS: Respiratory motion estimation derived from the proposed dynamic 3D self-navigator of 7.5 mm isotropic reconstruction resolution and a temporal resolution of 300 ms was successful for estimating complex respiratory motion patterns. This estimation improved image quality compared to respiratory belt and DC-based navigators. Respiratory motion compensation with soft-gating and respiratory motion-resolved techniques provided good image quality from highly undersampled data in volunteers and clinical patients. CONCLUSION: An optimized 3D UTE sequence combined with the proposed reconstruction methods can provide high-resolution motion robust pulmonary MRI. Feasibility was shown in patients who had irregular breathing patterns in which our approach could depict clinically relevant pulmonary pathologies. Magn Reson Med 79:2954-2967, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29023976 TI - Peripheral nerve involvement in multiple sclerosis: Demonstration by magnetic resonance neurography. AB - OBJECTIVE: To detect and quantify peripheral nerve lesions in multiple sclerosis (MS) by magnetic resonance neurography (MRN). METHODS: Thirty-six patients diagnosed with MS based on the 2010 McDonald criteria (34 with the relapsing remitting form, 2 with clinically isolated syndrome) with and without disease modifying treatment were compared to 35 healthy age-/sex-matched volunteers. All patients underwent detailed neurological and electrophysiological examinations. Three Tesla MRN with large anatomical coverage of both legs and the lumbosacral plexus was performed by using 2-dimensional (2D) fat-saturated, T2-weighted (T2w) and dual echo turbo spin echo sequences as well as a 3D T2-weighted, fat saturated SPACE sequence. Besides qualitative visual nerve assessment, a T2w signal quantification was performed by calculation of proton spin density and T2 relaxation time. Nerve diameter was measured as a morphometric criterion. RESULTS: T2w hyperintense nerve lesions were detectable in all MS patients, with a mean lesion number at thigh level of 151.5 +/- 5.7 versus 19.1 +/- 2.4 in controls (p < 0.0001). Nerve proton spin density was higher in MS (tibial/peroneal: 371.8 +/- 7.7/368.9 +/- 8.2) versus controls (tibial/peroneal: 266.0 +/- 11.0/276.8 +/- 9.7, p < 0.0001). In contrast, T2 relaxation time was significantly higher in controls (tibial/peroneal: 82.0 +/- 2.1/78.3 +/- 1.7) versus MS (tibial/peroneal: 64.3 +/- 1.0/61.2 +/- 0.9, p < 0.0001). Proximal tibial and peroneal nerve caliber was higher in MS (tibial: 52.4 +/- 2.1mm2 , peroneal: 25.4 +/- 1.3mm2 ) versus controls (tibial: 45.2 +/- 1.4mm2 , p < 0.0015; peroneal: 21.3 +/- 0.7mm2 , p = 0.0049). INTERPRETATION: Peripheral nerve lesions could be visualized and quantified in MS in vivo by high-resolution MRN. Lesions are defined by an increase of proton spin density and a decrease of T2 relaxation time, indicating changes in the microstructural organization of the extracellular matrix in peripheral nerve tissue in MS. By showing involvement of the peripheral nervous system in MS, this proof-of-concept study may offer new insights into the pathophysiology and treatment of MS. Ann Neurol 2017;82:676 685. PMID- 29023977 TI - Program expansion of a day hospital dedicated to manage sickle cell pain. PMID- 29023978 TI - Weight gain after treatment of Graves' disease in children. AB - OBJECTIVE: The frequency of and risk factors for weight gain in children treated for Graves' disease have not been described. We evaluated change in BMI-Z score and predictors of weight gain in this population. DESIGN: Retrospective review of data from January 2000 to July 2011. PATIENTS: Two hundred and twenty two children and adolescents with Graves' disease (ages 2-18 years) evaluated following radioactive iodine administration (RAI); (n = 101), thyroidectomy (n = 9) and initiation of medical therapy (n = 112). MEASUREMENTS: Changes in body mass index Z score over 12 months (DeltaBMI-Z0-12 ). RESULTS: All treatment groups in each gender and race increased BMI-Z (median DeltaBMI-Z0-12 was positive). T3 levels following RAI (P = .04) and weight lost at the time of administration (P = .02) in the RAI group and free T4 levels in the medical therapy group (P = .03) were positively correlated with DeltaBMI-Z0-12 . Race was a significant predictor only in the medical therapy group (P = .01). Age negatively correlated with DeltaBMI-Z0-12 in both the RAI (P < .001) and medical therapy groups (P = .003). Gender, maximum TSH in the 12 months after RAI and initial dose of LT4 replacement did not correlate with DeltaBMI-Z0-12 . The prevalence of overweight and obesity in our cohort was similar to US children. CONCLUSIONS: Weight gain during treatment for Graves' disease is common in children, and many children become overweight or obese during treatment. Risk factors include greater degree of hyperthyroidism at presentation and time of RAI and younger age. Weight lost upon presentation may also predict greater weight gain. Control of subsequent hypothyroidism does not appear to affect weight gain. PMID- 29023979 TI - Sox8 and Sox10 jointly maintain myelin gene expression in oligodendrocytes. AB - In Schwann cells of the vertebrate peripheral nervous system, induction of myelination and myelin maintenance both depend on the HMG-domain-containing transcription factor Sox10. In oligodendrocytes of the central nervous system, Sox10 is also essential for the induction of myelination. Its role in late phases of myelination and myelin maintenance has not been studied so far. Here, we show that these processes are largely unaffected in mice that lack Sox10 in mature oligodendrocytes. As Sox10 is co-expressed with the related Sox8, we also analyzed oligodendrocytes and myelination in Sox8-deficient mice. Again, we could not detect any major abnormalities. Expression of many myelin genes was only modestly reduced in both mouse mutants. Dramatic reductions in expression levels and phenotypic disturbances became only apparent once Sox8 and Sox10 were both absent. This argues that Sox8 and Sox10 are jointly required for myelin maintenance and impact myelin gene expression. One direct target gene of both Sox proteins is the late myelin gene Mog. Our results point to at least partial functional redundancy between both related Sox proteins in mature oligodendrocytes and are the first report of a substantial function of Sox8 in the oligodendroglial lineage. PMID- 29023980 TI - Agminated segmental plaque-type blue nevus associated with hypertrichosis and soft tissue hypertrophy: Report of a case and review of the literature. AB - Blue nevi are common skin neoplasms that typically present as asymptomatic solitary papules, although they may rarely occur in an agminated configuration. We describe a case of agminated blue nevus in a segmental facial distribution associated with soft tissue hypertrophy and hypertrichosis in a 16-year-old boy and present a review of the literature. Although they are generally considered to be benign, concurrent soft tissue changes occurring within an agminated blue nevus should be investigated thoroughly to exclude alternate diagnoses. PMID- 29023981 TI - 4-bp insertion/deletion (rs3783553) polymorphism within the 3'UTR of IL1A contributes to the risk of prostate cancer in a sample of Iranian population. AB - Growing evidence demonstrated the presence of an association between IL1A rs3783553 polymorphism and the risk of various cancers. We aimed to evaluate whether the 4-bp insertion/deletion polymorphism (rs3783553) within the 3' untranslated region (3'UTRs) of IL1A was associated to the risk of prostate cancer (PCa) in a sample of Iranian population. A case-control study, including 150 prostate cancer patients and 155 healthy men, was done to examine the possible association between IL1A 4-bp ins/del polymorphism and PCa risk in a sample of southeast Iranian population. Mismatched polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) was designed for genotyping the studied variant. Our findings showed that 4-bp ins/del polymorphism significantly increased the risk of PCa in codominant, recessive and allelic inheritance model. We also evaluated the association between the IL1A 4-bp ins/del polymorphism and clinicopathological characteristics of the patients, and found a significant association between 4-bp ins/del variant and stage, perineural invasion and surgical margin of tumor samples. Bioinformatics analysis revealed that the ins/del variant affected the IL1A mRNA stability leading to a structural shift in IL1A mRNA and has-miR-125a-3p hybrid. In conclusion, our findings proposed an association between IL1A 4-bp ins/del polymorphism and PCa risk. Additional studies with enlarged sample size and diverse ethnicities are required to validate our finding. PMID- 29023982 TI - MEDI+0: Morphology enabled dipole inversion with automatic uniform cerebrospinal fluid zero reference for quantitative susceptibility mapping. AB - PURPOSE: To develop a quantitative susceptibility mapping (QSM) method with a consistent zero reference using minimal variation in cerebrospinal fluid (CSF) susceptibility. THEORY AND METHODS: The ventricular CSF was automatically segmented on the R2* map. An L2 -regularization was used to enforce CSF susceptibility homogeneity within the segmented region, with the averaged CSF susceptibility as the zero reference. This regularization for CSF homogeneity was added to the model used in a prior QSM method (morphology enabled dipole inversion [MEDI]). Therefore, the proposed method was referred to as MEDI+0 and compared with MEDI in a numerical simulation, in multiple sclerosis (MS) lesions, and in a reproducibility study in healthy subjects. RESULTS: In both the numerical simulations and in vivo experiments, MEDI+0 not only decreased the susceptibility variation within the ventricular CSF, but also suppressed the artifact near the lateral ventricles. In the simulation, MEDI+0 also provided more accurate quantification compared to MEDI in the globus pallidus, substantia nigra, corpus callosum, and internal capsule. MEDI+0 measurements of MS lesion susceptibility were in good agreement with those obtained by MEDI. Finally, both MEDI+0 and MEDI showed good and similar intrasubject reproducibility. CONCLUSION: QSM with a minimal variation in ventricular CSF is viable to provide a consistent zero reference while improving image quality. Magn Reson Med 79:2795-2803, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29023984 TI - Partial to complete abrogation of the subepithelial macrophage barrier against the gut microbiota in patients with ulcerative colitis and Crohn's colitis. AB - AIMS: The integrity of the band of indigenous macrophages in the subepithelial layer of the lamina propria (SLP) is crucial in preventing the commensal gut microbiota from attacking the host. The breakdown of the SLP macrophage barrier results in microbiota inflow and improper immune responses; this might lead to inflammatory bowel disease (IBD). During inflammation, the SLP macrophage barrier is reinforced by inflammation-elicited macrophages (IEMs), which are derived from blood-circulating monocytes. The aim was to explore the characteristics of the SLP macrophage band in a cohort of biopsies without inflammation, in patients with ulcerative colitis in remission (UCre), and in patients with right-sided Crohn's colitis (RCC). METHODS AND RESULTS: Endoscopic biopsies were taken from endoscopically normal descending colon in 247 patients; 80 with IBD (27 UCre and 53 RCC), and 167 without IBD [90 had colonic diarrhoea, 63 were enrolled in a colorectal cancer (CRC) surveillance programme, seven had microscopic colitis in remission, and seven had miscellaneous colonic ailments]. Sections showed no inflammatory changes; they were immunostained with CD68. Among patients with UCre and RCC, the SLP band of CD68+ macrophages was fragmented or minute in 59% (47/80) and negative in 9% (7/80). In contrast, only 31% (51/167) of the biopsies from control patients had a fragmented/minute SLP band of CD68+ macrophages, and none had a negative SLP band of CD68+ macrophages (IBD versus controls, P < 0.05). CONCLUSIONS: The finding that the SLP macrophage barrier was fragmented to totally abrogated in UCre and RCC patients suggests a longlasting defect in the SLP CD68+ macrophage barrier in these patients. The lack of ongoing inflammation in colonic biopsies should rule out the participation of bone marrow-derived IEMs in the abrogation of the SLP macrophage barrier reported here. PMID- 29023983 TI - Age, vascular health, and Alzheimer disease biomarkers in an elderly sample. AB - OBJECTIVE: To investigate the associations between age, vascular health, and Alzheimer disease (AD) imaging biomarkers in an elderly sample. METHODS: We identified 430 individuals along the cognitive continuum aged >60 years with amyloid positron emission tomography (PET), tau PET, and magnetic resonance imaging (MRI) scans from the population-based Mayo Clinic Study of Aging. A subset of 329 individuals had fluorodeoxyglucose (FDG) PET. We ascertained presently existing cardiovascular and metabolic conditions (CMC) from health care records and used the summation of presence/absence of hypertension, hyperlipidemia, cardiac arrhythmias, coronary artery disease, congestive heart failure, diabetes mellitus, and stroke as a surrogate for vascular health. We used global amyloid from Pittsburgh compound B PET, entorhinal cortex tau uptake (ERC-tau) from tau-PET, and neurodegeneration in AD signature regions from MRI and FDG-PET as surrogates for AD pathophysiology. We dichotomized participants into CMC = 0 (CMC- ) versus CMC > 0 (CMC+ ) and tested for age-adjusted group differences in AD biomarkers. Using structural equation models (SEMs), we assessed the impact of vascular health on AD biomarker cascade (amyloid leads to tau leads to neurodegeneration) after considering the direct and indirect age, sex, and apolipoprotein E effects. RESULTS: CMC+ participants had significantly greater neurodegeneration than CMC- participants but did not differ by amyloid or ERC-tau. The SEMs showed that (1) vascular health had a significant direct and indirect impact on neurodegeneration but not on amyloid; and (2) vascular health, specifically the presence of hyperlipidemia, had a significant direct impact on ERC-tau. INTERPRETATION: Vascular health had quantifiably greater impact on neurodegeneration in AD regions than on amyloid deposition. Longitudinal studies are warranted to clarify the relationship between tau deposition and vascular health. Ann Neurol 2017;82:706-718. PMID- 29023986 TI - Evaluation of short- and long-term efficacy of chemoradiotherapy for advanced cervical cancer using HSP70 protein combined with multimodal MRI. AB - This study aims to evaluate the efficacy of chemoradiotherapy for advanced cervical cancer using heat shock protein 70 (HSP70) combined with multimodal MRI. The protein expressions of HSP70 in biopsy specimens obtained from 101 patients with cervical cancer were detected by immunohistochemistry. Plain MRI scan, DWI, DCE-MR, and MRS were performed before and after a period of 6 months of chemoradiotherapy. All patients were assigned into the complete response (CR) and partial response (PR) groups. HSP70 protein expression, tumor diameter, and tumor volume were lower in the CR group than in the PR group. The rate of tumor shrinkage, relative positive enhancement integral (rPEI), relative maximum slope of decrease (rMSD), relative signal enhancement ratio at 60 s (rSER60 ) and maximum SER (rSERmax ), mean apparent diffusion coefficient (ADCmean ) and minimum ADC value (ADCmin ) values in the CR group were higher than those in the PR group. Tumor diameter and volume, rSER15 and rSER30 were reduced after chemoradiotherapy, while rMSD, rSERmax , time to peak (TTP), ADCmean and ADCmin were higher after the treatment. The receiver operating characteristic (ROC) curves indicated that HSP70 expression, tumor diameter, rPEI, ADCmean and Cho peak showed the better chemoradiotherapy efficacy. Our data demonstrates that HSP70 protein combined with multimodal MRI may accurately evaluate the chemoradiotherapy efficacy of patients with advanced cervical cancer. The recurrence of cervical cancer significantly decreased in patients with negative expression of HSP70 and HSP70 protein detection provides potential therapy for the prevention, diagnosis, and prognosis of cervical cancer. PMID- 29023985 TI - Interaction between calcitonin gene-related peptide-immunoreactive neurons and satellite cells via P2Y12 R in the trigeminal ganglion is involved in neuropathic tongue pain in rats. AB - The P2Y12 receptor expressed in satellite cells of the trigeminal ganglion is thought to contribute to neuropathic pain. The functional interaction between neurons and satellite cells via P2Y12 receptors and phosphorylated extracellular signal-regulated kinase 1/2 (pERK1/2) underlying neuropathic pain in the tongue was evaluated in this study. Expression of P2Y12 receptor was enhanced in pERK1/2 immunoreactive cells encircling trigeminal ganglion neurons after lingual nerve crush. The administration to lingual nerve crush rats of a selective P2Y12 receptor antagonist, MRS2395, attenuated tongue hypersensitivity to mechanical and heat stimulation and suppressed the increase in the relative numbers of calcitonin gene-related peptide (CGRP)-immunoreactive neurons and neurons encircled by pERK1/2-immunoreactive cells. Administration of the P2Y1,12,13 receptor agonist, 2-(methylthio)adenosine 5'-diphosphate trisodium salt hydrate (2-MeSADP), to naive rats induced neuropathic pain in the tongue, as in lingual nerve crush rats. Co-administration of 2-MeSADP + MRS2395 to naive rats did not result in hypersensitivity of the tongue. The relative number of CGRP immunoreactive neurons increased following this co-administration, but to a lesser degree than observed in 2-MeSADP-administrated naive rats, and the relative number of neurons encircled by pERK1/2-immunoreactive cells did not change. These results suggest that the interaction between activated satellite cells and CGRP-immunoreactive neurons via P2Y12 receptors contributes to neuropathic pain in the tongue associated with lingual nerve injury. PMID- 29023987 TI - Prevalence of delusions in drug-naive Alzheimer disease patients: A meta analysis. AB - INTRODUCTION: Neuropsychiatric symptoms (NPS) are common at all stages of Alzheimer disease (AD). Delusions in AD are associated with negative clinical consequences and may signal rapid disease progression. Hence, we sought to determine the prevalence of delusions in drug-naive (no cholinesterase inhibitor or neuroleptic medications) AD patients. METHODS: In this meta-analysis, a search of the EMBASE, MEDLINE, and PsycINFO databases was performed. We selected studies reporting delusion prevalence measured by the Neuropsychiatric Inventory (NPI) in drug-naive AD patients. An aggregate delusion event rate with 95% confidence interval (CI) was calculated. The I2 statistic was used to assess the magnitude of between-study heterogeneity. Single variable meta-regressions allowed examination of the effect of moderating factors and heterogeneity. Quantitative measures were used to appraise for publication bias. RESULTS: We identified 6 studies with 591 participants allowing calculation of the aggregate delusional prevalence rate. Irrespective of dementia severity, the aggregate event rate for delusions was 29.1% (95% CI: 20-41%; I2 = 84.59). No publication bias was observed. CONCLUSION: This meta-analysis calculates a 29.1% prevalence rate of delusions in AD patients. There is a trend towards increasing delusion prevalence in concordance with increasing severity of dementia. Given delusions are associated with poorer outcomes, the obtained prevalence should motivate clinicians to screen carefully for delusions. Current literature limitations warrant future studies, with sub-analyses on dementia severity, and other neurobiological factors known to influence the presence of delusions. PMID- 29023988 TI - Molecular dynamics simulation, binding free energy calculation and unbinding pathway analysis on selectivity difference between FKBP51 and FKBP52: Insight into the molecular mechanism of isoform selectivity. AB - As co-chaperones of the 90-kDa heat shock protein(HSP90), FK506 binding protein 51 (FKBP51) and FK506 binding protein 52 (FKBP52) modulate the maturation of steroid hormone receptor through their specific FK1 domains (FKBP12-like domain 1). The inhibitors targeting FK1 domains are potential therapies for endocrine related physiological disorders. However, the structural conservation of the FK1 domains between FKBP51 and FKBP52 make it difficult to obtain satisfactory selectivity in FK506-based drug design. Fortunately, a series of iFit ligands synthesized by Hausch et al exhibited excellent selectivity for FKBP51, providing new opportunity for design selective inhibitors. We performed molecular dynamics simulation, binding free energy calculation and unbinding pathway analysis to reveal selective mechanism for the inhibitor iFit4 binding with FKBP51 and FKBP52. The conformational stability evaluation of the "Phe67-in" and "Phe67-out" states implies that FKBP51 and FKBP52 have different preferences for "Phe67-in" and "Phe67-out" states, which we suggest as the determinant factor for the selectivity for FKBP51. The binding free energy calculations demonstrate that nonpolar interaction is favorable for the inhibitors binding, while the polar interaction and entropy contribution are adverse for the inhibitors binding. According to the results from binding free energy decomposition, the electrostatic difference of residue 85 causes the most significant thermodynamics effects on the binding of iFit4 to FKBP51 and FKBP52. Furthermore, the importance of substructure units on iFit4 were further evaluated by unbinding pathway analysis and residue-residue contact analysis between iFit4 and the proteins. The results will provide new clues for the design of selective inhibitors for FKBP51. PMID- 29023990 TI - Selection of composite binary endpoints in clinical trials. AB - The choice of a primary endpoint is an important issue when designing a clinical trial. It is common to use composite endpoints as a primary endpoint because it increases the number of observed events, captures more information and is expected to increase the power. However, combining events that have no similar clinical importance and have different treatment effects makes the interpretation of the results cumbersome and might reduce the power of the corresponding tests. Gomez and Lagakos proposed the ARE (asymptotic relative efficiency) method to choose between a composite or one of its components as primary endpoint comparing the efficacy of a treatment based on the times to each of these endpoints. The aim of this paper is to expand the ARE method to binary endpoints. We show that the ARE method depends on six parameters including the degree of association between components, event proportion, and effect of therapy given by the corresponding odds ratio of the single endpoints. A case study is presented to illustrate the methodology. We conclude with efficient guidelines for discerning which could be the best suited primary endpoint given anticipated parameters. PMID- 29023989 TI - Impact of contact lens material and design on the ocular surface. AB - BACKGROUND: To evaluate the impact on the ocular surface of a daily disposable hydrogel contact lens with high water content compared with two silicone hydrogel daily disposable lenses of lower water content. METHODS: The hydrogel lens assessed was made from nesofilcon A and the silicone hydrogel lenses were made of delefilcon A and stenfilcon A. Contact lens thickness was measured to assess material stability during daily wear, and ocular surface parameters such as tear film osmolarity, tear meniscus area and central corneal thickness were also assessed. Optical quality was analysed for all cases by means of wavefront aberrometry. RESULTS: The nesofilcon A was shown to be the thinnest lens (p < 0.001), while no differences in lens thickness were found between the two silicone hydrogel lenses (p = 0.495). No significant differences were found in tear film osmolarity, tear meniscus area, central corneal thickness or corneal aberrations, either as a function of the lens measured or time of use (p > 0.05). CONCLUSION: In spite of having the thinnest lens and the highest water content, the hydrogel does not significantly impact on tear film and corneal swelling after one day of use in first-time wearers. PMID- 29023991 TI - Correlation of head-up tilt table test time interval with future risk of recurrent syncope. AB - BACKGROUND: Head-up tilt table test (HUTT) is widely used for the investigation of syncope and presyncope. Time required for positive response has a probable relationship to the sensitivity of neural reflex mechanism underlying syncope. METHODS: We evaluated patients with history of syncope. Group A included patients with recurrent syncope defined as two or more episodes of syncope and group B included those with one episode of syncope. Time required for the test to become positive in both the groups was analyzed. Patients with positive HUTT were followed for 1 year. RESULTS: Of 80 patients, 68 eligible study patients were divided into group A (32.35%) and group B (67.65%). HUTT was positive in 41 patients (positivity rate = 60.29%). Positivity rate was 100% in group A and 41.3% in group B. Median time interval for positive response in groups A and B were 12.5 and 30.0 minutes, respectively. An inverse association was found between recurrent syncope and time interval for positive response (R = - 0.282, P = 0.002). Time interval of less than 19.5 minutes for positive response had 94.5% sensitivity and 97.89% specificity for recurrent syncope. On follow-up, positive association was found between time interval for positive response less than 19.5 minutes and future recurrence of syncope (odds ratio = 22.75, 95% confidence interval = 4.37-118.34, P = 0.000). CONCLUSION: HUTT time interval of less than 19.5 minutes for positive response predicted future recurrence of syncope. Hence, it may serve as an important predictor of future recurrence of syncope. PMID- 29023992 TI - Therapy related-chronic myelomonocytic leukemia (CMML): Molecular, cytogenetic, and clinical distinctions from de novo CMML. AB - Therapy related myeloid neoplasms (t-MN) including therapy related myelodysplastic syndromes (t-MDS) and acute myeloid leukemia (t-AML) are associated with aggressive disease biologies and poor outcomes. In this large (n = 497) and informative (inclusive of molecular and cytogenetic information) chronic myelomonocytic leukemia (CMML) patient cohort, we demonstrate key biological insights and an independent prognostic impact for t-CMML. T-CMML was diagnosed in 9% of patients and occurred approximately 7 years after exposure to prior chemotherapy and/or radiation therapy. In comparison to de novo CMML, t CMML patients had higher LDH levels, higher frequency of karyotypic abnormalities and had higher risk cytogenetic stratification. There were no differences in the distribution of gene mutations and unlike t-MDS/AML, balanced chromosomal translocations, abnormalities of chromosome 11q23 (1%) and Tp53 mutations (<2%) were uncommon. Molecularly integrated CMML prognostic models were not effective in risk stratifying t-CMML patients and responses to hypomethylating agents were dismal with no complete responses. Median overall (OS) and leukemia free survival (LFS) was shorter for t-CMML in comparison to d-CMML (Median OS 10.9 vs 26 months and median LFS 50 vs 127 months) and t-CMML independently and adversely impacted OS (P = .0001 HR 2.1 95% CI 1.4-3.0). This prognostic impact was retained in the context of the Mayo Molecular Model (P = .001, HR 2.4, 95% CI 1.5-3.7) and the GFM prognostic model (P < .0001, HR 2.15, 95% CI 1.5-3.7). In summary, we highlight the unique genetics and independent prognostic impact of t-CMML, warranting its inclusion as a separate entity in the classification schema for both CMML and t-MN. PMID- 29023993 TI - Pediatric keloids: A 6-year retrospective review. AB - BACKGROUND/OBJECTIVES: Keloids are reportedly rare at the extremes of life. We sought to describe the epidemiology of pediatric keloids seen at the plastic surgery outpatient department of the University College Hospital, Ibadan. METHODS: We retrospectively reviewed all children younger than 19 years who presented with nonburn keloids between 2008 and 2014. Data were obtained on age; duration, size, and location of the keloid; family history; mode of treatment; and outcome. Outcome variables were recurrence and wound complications. Data were analyzed using the Pearson chi-square test for discreet variables and the independent-sample t test for continuous variables. P < .05 was taken as statistically significant. RESULTS: Within the review period, 304 patients presented with keloids, of whom 40 (13.1%) were younger than 19 years. There was a female preponderance (n = 23, 57.5%). The mean age at onset of the keloid was 9.3 years (range 3 months-18 years). Thirty (75%) patients had keloids in the head and neck region. Keloids were sporadic in 31 (77.5%) patients. Nineteen (47.5%) patients had multimodal treatment for keloid. The recurrence rate was 20%. Recurrence was significantly associated with the size of the lesion (P = .003). CONCLUSION: Keloids during childhood are not rare. More attention should be paid to the management of keloids in this age group. PMID- 29023994 TI - Biosensors: Classifications, medical applications, and future prospective. AB - Biosensors are devices that combine a biological material with a suitable platform for detection of pathogenic organisms, carcinogenic, mutagenic, and/or toxic chemicals or for reporting a biological effect. In recent years, an enormous number of different types of biosensors have been constructed and developed for several medical applications. The reason for that was primarily due to the numerous advantages and applications that can be offered by biosensors. This review article has been started with demonstrating the power of biosensor technologies versus analytical and conventional techniques. Subsequently, more emphasis has been added on the classification and the role of biosensors in several medical applications such as detection and monitoring of carcinogenic and mutagenic chemicals, reporting of endocrine disrupting compounds, and detection of pathogenic organisms. The most common reporter genes used in biosensors engineering and construction have also been summarized. Prospective strategies and recommendations for the future construction of biosensors have been highlighted. PMID- 29023996 TI - Effect of sex difference in clinical presentation (stable coronary artery disease vs unstable angina pectoris or non-ST-elevation myocardial infarction vs ST elevation myocardial infarction) on 2-year outcomes in patients undergoing percutaneous coronary intervention. AB - OBJECTIVE: To determine whether there is a difference in 2-year prognosis among patients across the spectrum of coronary artery disease undergoing percutaneous coronary intervention (PCI). METHODS: We analyzed all consecutive patients undergoing PCI at a single center from 1/1-12/31/2013. Clinical presentations were compared between sexes according to baseline clinical, angiographic, and procedural characteristics and 2-year (mean 730 +/- 30-day) outcomes. RESULTS: We grouped 10 724 consecutive patients based on sex and clinical presentation. Among patients with ST-elevation myocardial infarction (STEMI), rates of all-cause death (6.7% vs 1.4%) and cardiac death (3.8% vs 1.1%) were significantly higher in women than in men (P < 0.05), but these rates did not differ between men and women with stable coronary artery disease (SCAD) and non-ST-elevation acute coronary syndrome ((NSTE-ACS). Incidence of major bleeding was greater than in men only in those women presenting with ACS. After multivariable adjustment, female sex was not an independent predictor of outcomes in STEMI (hazard ratio [HR] for all-cause death: 1.33, 95% confidence interval [CI]:0.52-3.38; P = 0.55; HR for cardiac death: 0.69, 95%CI: 0.23-2.09, P = 0.51], but was still an independent predictor of bleeding in STEMI (HR: 3.53, 95%CI: 1.26-9.91, P = 0.017). CONCLUSION: Among STEMI patients, women had worse 2-year mortality after PCI therapy, but female sex was not an independent predictor of mortality after adjustment for baseline characteristics. In STEMI patients, women were at higher bleeding risk than men after PCI, even after multivariable adjustment. PMID- 29023997 TI - Trans-acting oligodeoxythymidine phosphorothioate triester reagents for transient transfection optimized and facilitated by a high-throughput microbioreactor system. AB - A rapid and cost-effective transient transfection method for mammalian cells is essential for screening biopharmaceuticals in early stages of development. A library of 25 amphipathic trans-acting oligodeoxythymidine phosphorothioate triester (dTtaPS) transfection reagents, carrying positively charged and lipophilic groups, has been constructed for this purpose. High-throughput screening of the library, using an imaging cytometer and an automated microbioreactor system, has led to the identification of dTtaPS10+ as a potent transfection reagent. This reagent efficiently delivers a plasmid encoding enhanced green fluorescent protein in adherent HeLa cells while exhibiting low cytotoxicity. The microbioreactor system has been particularly useful for assessing the ability of dTtaPS10+ to deliver a plasmid encoding immunoglobulin IgG1 in a fed-batch serum-free suspension CHO cell culture; dTtaPS10+ -mediated transfection resulted in the production of IgG1 in yields comparable to or better than those obtained with commercial lipid-based transfection reagents under similar conditions. The ability of dTtaPS10+ to deliver plasmids is essentially unaffected by the presence of a silicone-based antifoaming reagent, which is commonly used in bioreactor cell cultures. The transfection efficiency of lyophilized dTtaPS10+ -plasmid complexes has been significantly restored upon aqueous reconstitution when compared to that achieved while using commercial transfection reagent complexes under similar conditions. The results of all experiments underscore the potential of dTtaPS10+ for transient transfection of plasmids into adherent cells and fed-batch serum-free suspension CHO cells and rapid screening of reagents in a microbioreactor system. PMID- 29023998 TI - Randomized controlled trial on the effectiveness of a multicomponent intervention on migraine: A study protocol. AB - AIM: To describe a randomized controlled trial protocol that evaluates the effectiveness of a multicomponent intervention in improving the outcomes (quality of life, disability, intensity, frequency and duration) of patients with migraine. BACKGROUND: Migraine affects various facets of Quality of Life and results in moderate to high levels of disability among migraineurs. Migraine pain can be intense and unremitting that can interfere with the daily routine and reduce the ability to think and function normally. Many people can lower their risk of a migraine by simply avoiding stress, getting enough sleep, eating regularly and by avoiding triggers. Hence, the present study aims at evaluating the effectiveness of a multicomponent intervention in managing migraine headaches. The multicomponent intervention includes behavioural lifestyle modification program and sessions of pranayama (a form of yogic breathing exercise). DESIGN: The study is a prospective, randomized, controlled, single blinded trial with parallel arms. METHODS: The study participants are randomized to intervention and control arms. The participants randomized to the intervention arm would receive the specific multicomponent intervention based on the protocol. The participants in the control arm would receive routine care. They are followed up for 24 weeks and the outcomes are assessed. DISCUSSION: Various studies report that non-pharmacological therapies and integrative therapies play a major role in the management of migraine headaches. The findings of the study are expected to open up new horizons in health care arena emphasizing the use of non pharmacological therapy for less focused areas of primary care health problems such as migraine. TRIAL REGISTRATION: The trial is registered with the Clinical Trials Registry India (CTRI). The CTRI India is one of the primary registries in the WHO registry network (Ctri.nic.in, ). CTRI reference ID: CTRI/2015/10/006282. PMID- 29023999 TI - Occupational exposure to diesel engine exhaust and serum cytokine levels. AB - The International Agency for Research on Cancer has classified diesel engine exhaust (DEE) as a human lung carcinogen. Given that inflammation is suspected to be an important underlying mechanism of lung carcinogenesis, we evaluated the relationship between DEE exposure and the inflammatory response using data from a cross-sectional molecular epidemiology study of 41 diesel engine testing workers and 46 unexposed controls. Repeated personal exposure measurements of PM2.5 and other DEE constituents were taken for the diesel engine testing workers before blood collection. Serum levels of six inflammatory biomarkers including interleukin (IL)-1, IL-6, IL-8, tumor necrosis factor (TNF)-alpha, macrophage inflammatory protein (MIP)-1beta, and monocyte chemotactic protein (MCP)-1 were analyzed in all subjects. Compared to unexposed controls, concentrations of MIP 1beta were significantly reduced by ~37% in DEE exposed workers (P < 0.001) and showed a strong decreasing trend with increasing PM2.5 concentrations in all subjects (Ptrend < 0.001) as well as in exposed subjects only (Ptrend = 0.001). Levels of IL-8 and MIP-1beta were significantly lower in workers in the highest exposure tertile of PM2.5 (>397 ug/m3 ) compared to unexposed controls. Further, significant inverse exposure-response relationships for IL-8 and MCP-1 were also found in relation to increasing PM2.5 levels among the DEE exposed workers. Given that IL-8, MIP-1beta, and MCP-1 are chemokines that play important roles in recruitment of immunocompetent cells for immune defense and tumor cell clearance, the observed lower levels of these markers with increasing PM2.5 exposure may provide insight into the mechanism by which DEE promotes lung cancer. Environ. Mol. Mutagen. 59:144-150, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024001 TI - Dynamin-related protein 1-mediated mitochondrial fission contributes to post traumatic cardiac dysfunction in rats and the protective effect of melatonin. AB - Mechanical trauma (MT) causes myocardial injury and cardiac dysfunction. However, the underlying mechanism remains largely unclear. This study investigated the role of mitochondrial dynamics in post-traumatic cardiac dysfunction and the protective effects of melatonin. Adult male Sprague Dawley rats were subjected to 5-minute rotations (200 revolutions at a rate of 40 rpm) to induce MT model. Melatonin was administrated intraperitoneally 5 minute after MT. Mitochondrial morphology, myocardial injury, and cardiac function were determined in vivo. There was smaller size of mitochondria and increased number of mitochondria per MUm2 in the hearts after MT when the secondary myocardial injury was induced. Melatonin treatment at the dose of 30 mg/kg reduced serine 616 phosphorylation of Drp1 and inhibited mitochondrial Drp1 translocation and mitochondrial fission in the hearts of rats subjected to MT, which contributed to the reduction of myocardial injury and the improvement of cardiac function. In vitro, H9c2 cells cultured in 20% traumatic plasma (TP) for 12 hour showed enhanced mitochondrial fission, mitochondrial membrane potential (?Psim) loss, mitochondrial cytochrome c release, and decreased mitochondrial complex I-IV activities. Pretreatment with melatonin (100 MUmol/L) efficiently inhibited TP-induced mitochondrial fission, ?Psim loss, cytochrome c release, and improved mitochondrial function. Melatonin's protective effects were attributed to its role in suppressing plasma TNF-alpha overproduction, which was responsible for Drp1-mediated mitochondrial fission. Taken together, our results demonstrate for the first time that abnormal mitochondrial dynamics is involved in post-traumatic cardiac dysfunction. Melatonin has significant pharmacological potential in protecting against MT induced cardiac dysfunction by preventing excessive mitochondrial fission. PMID- 29024000 TI - Myeloid Notch1 deficiency activates the RhoA/ROCK pathway and aggravates hepatocellular damage in mouse ischemic livers. AB - : Notch signaling plays an emerging role in the regulation of immune cell development and function during inflammatory response. Activation of the ras homolog gene family member A/Rho-associated protein kinase (ROCK) pathway promotes leukocyte accumulation in tissue injury. However, it remains unknown whether Notch signaling regulates ras homolog gene family member A/ROCK-mediated immune responses in liver ischemia and reperfusion (IR) injury. This study investigated intracellular signaling pathways regulated by Notch receptors in the IR-stressed liver and in vitro. In a mouse model of IR-induced liver inflammatory injury, we found that mice with myeloid-specific Notch1 knockout showed aggravated hepatocellular damage, with increased serum alanine aminotransferase levels, hepatocellular apoptosis, macrophage/neutrophil trafficking, and proinflammatory mediators compared to Notch1-proficient controls. Unlike in the controls, myeloid Notch1 ablation diminished hairy and enhancer of split-1 (Hes1) and augmented c-Jun N-terminal kinase (JNK)/stress-activated protein kinase associated protein 1 (JSAP1), JNK, ROCK1, and phosphatase and tensin homolog (PTEN) activation in ischemic livers. Disruption of JSAP1 in myeloid-specific Notch1 knockout livers improved hepatocellular function and reduced JNK, ROCK1, PTEN, and toll-like receptor 4 activation. Moreover, ROCK1 knockdown inhibited PTEN and promoted Akt, leading to depressed toll-like receptor 4. In parallel in vitro studies, transfection of lentivirus-expressing Notch1 intracellular domain promoted Hes1 and inhibited JSAP1 in lipopolysaccharide-stimulated bone marrow derived macrophages. Hes1 deletion enhanced JSAP1/JNK activation, whereas clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9-mediated JSAP1 knockout diminished ROCK1/PTEN and toll-like receptor 4 signaling. CONCLUSION: Myeloid Notch1 deficiency activates the ras homolog gene family member A/ROCK pathway and exacerbates hepatocellular injury by inhibiting transcriptional repressor Hes1 and inducing scaffold protein JSAP1 in IR triggered liver inflammation; our findings underscore the crucial role of the Notch-Hes1 axis as a novel regulator of innate immunity-mediated inflammation and imply the therapeutic potential for the management of organ IR injury in transplant recipients. (Hepatology 2018;67:1041-1055). PMID- 29024002 TI - Boundary-spanning actors in complex adaptive governance systems: The case of multisectoral nutrition. AB - A growing literature highlights complexity of policy implementation and governance in global health and argues that the processes and outcomes of policies could be improved by explicitly taking this complexity into account. Yet there is a paucity of studies exploring how this can be achieved in everyday practice. This study documents the strategies, tactics, and challenges of boundary-spanning actors working in 4 Sub-Saharan Africa countries who supported the implementation of multisectoral nutrition as part of the African Nutrition Security Partnership in Burkina Faso, Mali, Ethiopia, and Uganda. Three action researchers were posted to these countries during the final 2 years of the project to help the government and its partners implement multisectoral nutrition and document the lessons. Prospective data were collected through participant observation, end-line semistructured interviews, and document analysis. All 4 countries made significant progress despite a wide range of challenges at the individual, organizational, and system levels. The boundary-spanning actors and their collaborators deployed a wide range of strategies but faced significant challenges in playing these unconventional roles. The study concludes that, under the right conditions, intentional boundary spanning can be a feasible and acceptable practice within a multisectoral, complex adaptive system in low- and middle-income countries. PMID- 29024003 TI - Molecular characterization of the llama FGF5 gene and identification of putative loss of function mutations. AB - Llama, the most numerous domestic camelid in Argentina, has good fiber-production ability. Although a few genes related to other productive traits have been characterized, the molecular genetic basis of fiber growth control in camelids is still poorly understood. Fibroblast growth factor 5 (FGF5) is a secreted signaling protein that controls hair growth in humans and other mammals. Mutations in the FGF5 gene have been associated with long-hair phenotypes in several species. Here, we sequenced the llama FGF5 gene, which consists of three exons encoding 813 bp. cDNA analysis from hair follicles revealed the expression of two FGF5 alternative spliced transcripts, in one of which exon 2 is absent. DNA variation analysis showed four polymorphisms in the coding region: a synonymous SNP (c.210A>G), a single base deletion (c.348delA), a 12-bp insertion (c.351_352insCATATAACATAG) and a non-sense mutation (c.499C>T). The deletion was always found together with the insertion forming a haplotype and producing a putative truncated protein of 123 amino acids. The c.499C>T mutation also leads to a premature stop codon at position 168. In both cases, critical functional domains of FGF5, including one heparin binding site, are lost. All animals analyzed were homozygous for one of the deleterious mutations or compound heterozygous for both (i.e. c.348delA, c.351_352insCATATAACATAG/c.499T). Sequencing of guanaco samples showed that the FGF5 gene encodes a full-length 270 amino acid protein. These results suggest that FGF5 is likely functional in short haired wild species and non-functional in the domestic fiber-producing species, the llama. PMID- 29024004 TI - Shortening gestational age at term and organisation of birth care in the Czech Republic. AB - A trend of the shortening duration of pregnancies carried to term has been observed in several countries and represents a growing public health concern. This paper describes the trend in the Czech Republic and shows its relation to the changing demographic structure of mothers and the organisation of maternity care. Data from the birth register are used and supplemented with information about the capacity of maternity care (number of beds at maternity clinics, number of obstetricians and midwives). Logistic regression is used to estimate the odds of 37 to 39 vs 40+ completed weeks of gestation. The results show that the average gestational age at term decreased by 2.1 days between 2000 and 2013. The odds of 37 to 39 weeks of gestational duration increased, mainly due to the reduction in the number of beds at maternity clinics (adjusted odds ratio of 1.51). The effects of the number of health care staff members were weaker. The number of midwives positively influenced gestational duration, while the number of obstetricians had a negative effect. Maternal demographic structure cannot explain the trend. A likely explanation is the increased use of planned early term caesarean sections. PMID- 29024006 TI - Ciliary body melanoma manifesting as unilateral ocular hypertension and early cataract. PMID- 29024005 TI - Functional Limitations Among Responders to the World Trade Center Attacks 14 Years After the Disaster: Implications of Chronic Posttraumatic Stress Disorder. AB - Posttraumatic stress disorder (PTSD) is associated with self-reported difficulties navigating the social and physical world and may also be associated with risk of functional limitations. The Short Physical Performance Battery (SPPB), an objective functional assessment, was administered during monitoring exams between January and December 2015 to a consecutive sample of 1,268 rescue workers, volunteers, and other responders who had aided in response, recovery, and cleanup efforts at the World Trade Center (WTC) in New York after the September 11, 2011 attacks. Data were linked with diagnostic and longitudinal data from the WTC monitoring study. Multivariable analyses were used to examine predictors of functional limitations. Prevalence estimates weighted to the general responder population revealed a relatively high prevalence of functional limitations, SPPB <= 9; 16.0%, 95% CI [13.7, 18.4]. Current PTSD was associated with a twofold increased risk of functional limitations after controlling for predisposing factors, trauma severity, behavioral factors, and WTC-related medical conditions, adjusted risk ratio (aRR) = 2.11, 95% CI [1.48, 3.01]. Exposure to ergonomic risk factors at the WTC also increased the risk of functional impairments, aRR = 1.34 95% CI [1.05, 1.70]. Longitudinal results suggest that individuals with current functional limitations experienced high baseline PTSD severity, B = 2.94, SE = 1.33, and increasing PTSD symptom severity, B = 0.29, SE = 0.10, since September 11, 2001. This study identified a cross-sectional relationship between functional limitations and PTSD and a worsening of PTSD symptoms in persons who eventually demonstrated functional limitations. Results highlight the potential role of chronic PTSD in functional limitations. PMID- 29024007 TI - SNP mutations occurring in thyroid hormone receptor influenced individual susceptibility to triiodothyronine: Molecular dynamics and site-directed mutagenesis approaches. AB - The increasing evidences have suggested that expression of single nucleotide polymorphisms (SNP) coded thyroid hormone receptors (THR) generally are associated with individual susceptibility to chemicals. In the present research, multiple molecular dynamics simulations on four SNP mutants (G332R, T337Delta, G345R, and G347E) were performed to investigate the structural and dynamical altering, which could lead to a binding capability variation to triiodothyronine (T3). It proved the structures of two SNP mutants (G345R and T337Delta) occurring in the THR proteins had experienced conformational change to a great extend, which also led to a significant decreasing in binding ability with T3. In addition, two mutates (G345R and G347E) and wild type THR proteins were expressed and purified based on site-directed mutagenesis technology to test their binding abilities with T3 by fluorescence experiments. The fluorescence quenching efficiencies of two mutates displayed that the conjugation with T3 decreased with a significant rate in G345R system and a little rate in G347E system compared with its wild type. It was consistent with the molecular dynamic research that the SNP mutations did change structures of THR protein, and thereby decreased the binding behavior of T3 at different extent. The overall molecular-level look at the protein structure may provide the structural basis to explain how one amino acid change can create a ripple effect on the protein structures and eventually affect the binding affinity of the ligands, which maybe the first stage to understand how SNP mutation results in individual difference in susceptibility to variant chemicals. PMID- 29024008 TI - Immunization with alpha-synuclein/Grp94 reshapes peripheral immunity and suppresses microgliosis in a chronic Parkinsonism model. AB - Neuroinflammation mediated by chronically activated microglia, largely caused by abnormal accumulation of misfolded alpha-synuclein (alphaSyn) protein, is known to contribute to the pathophysiology of Parkinson's disease (PD). In this work, based on the immunomodulatory activities displayed by particular heat-shock proteins (HSPs), we tested a novel vaccination strategy that used a combination of alphaSyn and Grp94 (HSPC4 or Gp96) chaperone and a murine PD model. We used two different procedures, first, the adoptive transfer of splenocytes from alphaSyn/Grp94-immunized mice to recipient animals, and second, direct immunization with alphaSyn/Grp94, to study the effects in a chronic mouse MPTP model of parkinsonism. We found that both approaches promoted a distinct profile in the peripheral system-supported by humoral and cellular immunity-consisting of a Th1-shifted alphaSyn-specific response accompanied by an immune-regulatory/Th2 skewed general phenotype. Remarkably, this mixed profile sustained by alphaSyn/Grp94 immunization led to strong suppression of microglial activation in the substantia nigra and striatum, pointing to a newly described positive effect of anti-alphaSyn Th1-responses in the context of PD. This strategy is the first to target alphaSyn and report the suppression of PD-associated microgliosis. Overall, we show that the alphaSyn/Grp94 combination supports a distinct and long lasting immune profile in the peripheral system, which has an impact at the CNS level by suppressing chronic microglial activation in an MPTP model of PD. Furthermore, our study demonstrates that reshaping peripheral immunity by vaccination with appropriate misfolding protein/HSP combinations could be highly beneficial as a treatment for neurodegenerative misfolding diseases. PMID- 29024009 TI - Is kidney transplantation safe after careful selection of the recipients with a history of psychotic disorder? PMID- 29024011 TI - Gastrointestinal: Phlebosclerotic colitis: A rare but increasingly recognized cause of ischemic colitis with telltale imaging features. PMID- 29024010 TI - Imaging behind occluded areas with an iatrogenic perforated balloon: A safe, practical, and simple new method of visualizing the distal lumen in total occlusion. AB - OBJECTIVE: In the present study, we investigated the effectiveness and reliability of a new method that reveals whether guidewire advanced distal to the lesion is in the lumen in patients with acute (ATO) or chronic coronary total occlusion (CTO). METHODS: Forty-one patients with symptomatic ATO and 22 patients with CTO who were admitted into our catheterization laboratory between January 2016 and March 2017 were included. In patients in whom antegrade filling could not be demonstrated after passing 0.014" guidewire beyond the total lesion, a 1.25 * 15 mm balloon was punctured with a needle outside the operative field to visualize the total lesion. This perforated balloon was then used to deliver an opaque substance through this hole to visualize the distal part. RESULTS: The mean age of our 63 patients was 66 +/- 12 years. They had diabetes (57%), hypertension (100%), and a history of PCI (85%). The mean procedural time was 27 +/- 6.8 min, and the mean volume of contrast material used was 93.9 +/- 24 mL. This technique was 100% successful in accurately demonstrating the distal lumen and preventing complications. CONCLUSION: This new method we developed is much simpler and more useful than other methods for visualization of the true lumen because we can re-orient the balloon at the time of opaque injection and use 190 cm guidewire without additional costs. Additionally, one balloon is sufficient for the operation. PMID- 29024013 TI - Erratum. PMID- 29024012 TI - Gastrointestinal: Transurethral endoscopic retrograde pancreatography. PMID- 29024014 TI - Gastrointestinal: Cause or effect: A case of microcytic anemia. PMID- 29024015 TI - Hepatobiliary and Pancreatic: Fulminant liver failure from diffuse leukemoid hepatic infiltration of melanoma. PMID- 29024017 TI - Most common dermatology diagnoses to the emergency department in the paediatric population. PMID- 29024016 TI - Effects of fluoride on morphology, growth, development, and thyroid hormone of Chinese toad (Bufo gargarizans) embryos. AB - Excessive fluoride in natural water ecosystem has the potential to detrimentally affect amphibians, but little is known of such effects or underlying mechanisms in Bufo gargarizans embryos. In the present study, the effects of fluoride exposure on B. gargarizans embryos were investigated. First, fluoride teratogenic experiment showed that the 9 days EC50 of fluoride on B. gargarizans embryos was 177.62 mg/L. Then, we studied the sublethal effects of fluoride on B. gargarizans embryos at control, 0.7, 4.1, 19.6, 41.9, and 62.7 mg/L fluoride concentration. Malformation, growth, and development of embryos were monitored, and type 2 and 3 iodothyronine deiodinase (Dio2 and Dio3), thyroid hormone receptors (TRalpha and TRbeta) mRNA levels were measured. Our results showed the morphological malformations, such as tail curvature (lordosis), edema, cuticularized ciliated cells, and hyperplasia were occurred during fluoride exposure. Growth and development were all inhibited at 19.5, 41.9, and 62.7 mg/L fluoride-treated groups after 9 days' exposure. According to real-time PCR results, exposure to fluoride upregulated Dio3 and TRbeta mRNA expression and downregulated Dio2 and TRalpha mRNA level. All above indicated that excessive fluoride could induce morphology malformations, inhibit embryonic growth and development, and disrupt the normal function of maternal thyroid hormone in B. gargarizans embryos. Environ. Mol. Mutagen. 59:123-133, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024019 TI - Contributing to the growth of early career investigators. PMID- 29024018 TI - The Community Health Center Fund: What's At Risk? PMID- 29024020 TI - Hematological indices of injury to lightly oiled birds from the Deepwater Horizon oil spill. AB - Avian mortality events are common following large-scale oil spills. However, the sublethal effects of oil on birds exposed to light external oiling are not clearly understood. We found that American oystercatchers (area of potential impact n = 42, reference n = 21), black skimmers (area of potential impact n = 121, reference n = 88), brown pelicans (area of potential impact n = 91, reference n = 48), and great egrets (area of potential impact n = 57, reference n = 47) captured between 20 June 2010 and 23 February 2011 following the Deepwater Horizon oil spill experienced oxidative injury to erythrocytes, had decreased volume of circulating erythrocytes, and showed evidence of a regenerative hematological response in the form of increased reticulocytes compared with reference populations. Erythrocytic inclusions consistent with Heinz bodies were present almost exclusively in birds from sites impacted with oil, a finding pathognomonic for oxidative injury to erythrocytes. Average packed cell volumes were 4 to 19% lower and average reticulocyte counts were 27 to 40% higher in birds with visible external oil than birds from reference sites. These findings provide evidence that small amounts of external oil exposure are associated with hemolytic anemia. Furthermore, we found that some birds captured from the area impacted by the spill but with no visible oiling also had erythrocytic inclusion bodies, increased reticulocytes, and reduced packed cell volumes when compared with birds from reference sites. Thus, birds suffered hematologic injury despite no visible oil at the time of capture. Together, these findings suggest that adverse effects of oil spills on birds may be more widespread than estimates based on avian mortality or severe visible oiling. Environ Toxicol Chem 2018;37:451-461. (c) 2017 SETAC. PMID- 29024021 TI - Too many and too few: The paradoxical case of physicians in the Russian Federation. AB - There is a paradox characterising the Russian health workforce. By international standards, Russia has a very high number of physicians per capita but at the same time is confronted by chronic real shortages of qualified physicians. This paper explores the reasons for this paradox by examining the structural characteristics of health workforce development in the context of the Soviet legacy and the comparative performance of other European countries. The paper uses data on comparative health workforce dynamics to argue that Russia is a European laggard, before then evaluating recent and current policies within that context. The health workforce challenges facing all low- and middle-income countries are acute, and this paper confirms this IS the case for Russia-Europe's largest country. The paper argues that the physician shortage is driven by the model of health workforce development inherited from the Soviet period, with its emphasis on quantitative rather than structural indicators. We find that, in contrast to most European Union countries, Russia's stalled reform process leaves it facing a chronic shortage of appropriately trained physicians. We document the costs of failed and slow reforms during the last 2 decades, while cautiously welcoming some recent policy initiatives. PMID- 29024022 TI - Novel beta-catenin/farnesoid X receptor interaction regulates hepatic bile acid metabolism during cholestasis. PMID- 29024023 TI - Chronic active Epstein-Barr virus infection with cutaneous lymphoproliferation: haemophagocytosis in the skin and haemophagocytic syndrome. PMID- 29024025 TI - An exploratory, prospective, open-label trial of ingenol mebutate gel 0.05% for the treatment of external anogenital warts. AB - BACKGROUND: Anogenital warts (AGW) can cause physical discomfort and decreased quality of life. Recent case reports suggest that ingenol mebutate gel might be an effective treatment of AGW. OBJECTIVE: To explore primarily the safety, and secondarily the efficacy of ingenol mebutate gel 0.05% in patients with AGW. METHODS: This was an exploratory, open-label, 1-arm trial of ingenol mebutate gel 0.05% administered up to three times to patients with AGW. Safety was assessed by occurrence and severity of local skin reactions (LSRs) and treatment-related adverse events (AEs). Efficacy was assessed by complete clearance and reduction in AGW count 14 days after last treatment, and recurrence 12 weeks after clearance. RESULTS: Of 41 patients enrolled, 40 received treatment and 26 completed the trial. Patients had a median AGW count of 11.0 and AGW duration of 3.0 years at baseline. All patients experienced transient LSRs following treatment with a maximum composite LSR score of 7.5 (on a scale from 0 to 18). A total of 93% of patients reported treatment-related AEs, most frequently pain (85%) and procedural complications (35%) due to smearing of the gel. 78% of patients took mild analgesics for the pain, typically for 1-2 days following treatment. The majority of AEs were of moderate-to-severe intensity. Seventeen of 39 patients (43.6%) had complete clearance 14 days after last treatment, and AGW count was reduced by 90.9%. There was a tendency towards lower clearance rate in patients with longer duration of AGW. Eight of 14 patients (57.1%) had AGW recurrence 12 weeks after clearance. CONCLUSION: Ingenol mebutate gel was associated with a high number of AEs and withdrawals due to painful local and adjacent skin reactions. Furthermore, it showed promising efficacy in reducing AGW despite a difficult-to-treat population. Optimization of the formulation is warranted to improve the safety profile of the treatment. PMID- 29024024 TI - Altered Serum Thyrotropin Concentrations in Dogs with Primary Hypoadrenocorticism before and during Treatment. AB - BACKGROUND: Thyrotropin (TSH) can be increased in humans with primary hypoadrenocorticism (HA) before glucocorticoid treatment. Increase in TSH is a typical finding of primary hypothyroidism and both diseases can occur concurrently (Schmidt's syndrome); therefore, care must be taken in assessing thyroid function in untreated human patients with HA. OBJECTIVE: Evaluate whether alterations in cTSH can be observed in dogs with HA in absence of primary hypothyroidism. ANIMALS: Thirty dogs with newly diagnosed HA, and 30 dogs in which HA was suspected but excluded based on a normal ACTH stimulation test (controls) were prospectively enrolled. METHODS: cTSH and T4 concentrations were determined in all dogs and at selected time points during treatment (prednisolone, fludrocortisone, or DOCP) in dogs with HA. RESULTS: cTSH concentrations ranged from 0.01 to 2.6 ng/mL (median 0.29) and were increased in 11/30 dogs with HA; values in controls were all within the reference interval (range: 0.01-0.2 ng/dL; median 0.06). There was no difference in T4 between dogs with increased cTSH (T4 range 1.0-2.1; median 1.3 MUg/dL) compared to those with normal cTSH (T4 range 0.5-3.4, median 1.4 MUg/dL; P=0.69) and controls (T4 range 0.3-3.8, median 1.8 MUg/dL; P=0.35). After starting treatment, cTSH normalized after 2-4 weeks in 9 dogs and after 3 and 4 months in 2 without thyroxine supplementation. CONCLUSIONS AND CLINICAL RELEVANCE: Evaluation of thyroid function in untreated dogs with HA can lead to misdiagnosis of hypothyroidism; treatment with glucocorticoids for up to 4 months can be necessary to normalize cTSH. PMID- 29024027 TI - Rural Disparities in Alzheimer's Disease-Related Community Pharmacy Care in the United States. AB - PURPOSE: To examine the relationship between area population density and community pharmacy-based Alzheimer's Disease (AD)-related services: pharmacists' medication knowledge and counseling, immunizations, and in-stock cognitive enhancers in 3 predominantly rural regions of the United States. METHODS: A standardized interview was administered by telephone to a 100% sample of community pharmacies in 3 areas: Northern California/Southern Oregon (n = 206), North and South Dakota (n = 278), and West Virginia (n = 420). Key study outcomes included: pharmacists' medication knowledge, availability of immunization services, and cognitive enhancers in stock. Respondents were classified by population density (persons/mi2 ) by pharmacy location to evaluate the relationship between rurality and AD-related pharmacy services. Chi-squared and logistic regression analyses were performed using Stata 10.1. FINDINGS: Pharmacies in more rural areas (50.1-100.0, 25.1-50.0, and <=25.0 persons/mi2 ) were about 50% less likely to offer immunizations (95% CI: 0.32-0.91; 0.32-0.76; 0.28-0.80, respectively) compared to the least rural areas (>100.0 persons/mi2 ). Compared to the least rural areas, pharmacists in the most rural areas (<=25.0 persons/mi2 ) were less likely to name >=2 gastrointestinal adverse effects of donepezil (OR = 0.50, 95% CI: 0.31-0.82) or have memantine XR 28 mg (OR = 0.61, 95% CI: 0.41-0.89) and other surveyed medications (OR = 0.57, 95% CI: 0.39-0.82) in stock. CONCLUSIONS: We found disparities in AD-related services in community pharmacies located in more rural counties, wherein individuals with AD and their caregivers may face barriers to obtaining quality pharmaceutical care. There is a need to strengthen pharmacists' knowledge and improve pharmacy services to reduce disparities. PMID- 29024026 TI - Computational characterization of substrate and product specificities, and functionality of S-adenosylmethionine binding pocket in histone lysine methyltransferases from Arabidopsis, rice and maize. AB - Histone lysine methylation by histone lysine methyltransferases (HKMTs) has been implicated in regulation of gene expression. While significant progress has been made to understand the roles and mechanisms of animal HKMT functions, only a few plant HKMTs are functionally characterized. To unravel histone substrate specificity, degree of methylation and catalytic activity, we analyzed Arabidopsis Trithorax-like protein (ATX), Su(var)3-9 homologs protein (SUVH), Su(var)3-9 related protein (SUVR), ATXR5, ATXR6, and E(Z) HKMTs of Arabidopsis, maize and rice through sequence and structure comparison. We show that ATXs may exhibit methyltransferase specificity toward histone 3 lysine 4 (H3K4) and might catalyse the trimethylation. Our analyses also indicate that most SUVH proteins of Arabidopsis may bind histone H3 lysine 9 (H3K9). We also predict that SUVH7, SUVH8, SUVR1, SUVR3, ZmSET20 and ZmSET22 catalyse monomethylation or dimethylation of H3K9. Except for SDG728, which may trimethylate H3K9, all SUVH paralogs in rice may catalyse monomethylation or dimethylation. ZmSET11, ZmSET31, SDG713, SDG715, and SDG726 proteins are predicted to be catalytically inactive because of an incomplete S-adenosylmethionine (SAM) binding pocket and a post-SET domain. E(Z) homologs can trimethylate H3K27 substrate, which is similar to the Enhancer of Zeste homolog 2 of humans. Our comparative sequence analyses reveal that ATXR5 and ATXR6 lack motifs/domains required for protein-protein interaction and polycomb repressive complex 2 complex formation. We propose that subtle variations of key residues at substrate or SAM binding pocket, around the catalytic pocket, or presence of pre-SET and post-SET domains in HKMTs of the aforementioned plant species lead to variations in class-specific HKMT functions and further determine their substrate specificity, the degree of methylation and catalytic activity. PMID- 29024029 TI - Rosacea and subsequent diagnosis for Parkinson's disease: a large, urban, single center, US patient population retrospective study. PMID- 29024028 TI - Emotion Dysregulation and Social Support in PTSD and Depression: A Study of Trauma-Exposed Veterans. AB - Emotion dysregulation has been associated with impaired interpersonal functioning and increased risk of posttraumatic psychopathology. Given that social support is a robust predictor of psychiatric morbidity following trauma exposure, we examined whether emotion dysregulation was associated with posttraumatic psychopathology through its negative effect on social support. Using self-report data from 90 military veterans (89.9% men) enrolled in an outpatient psychotherapy program for posttraumatic stress disorder (PTSD), we found that social support partially mediated the effect of emotion dysregulation on PTSD (PM = .10) and depression symptoms (PM = .14). When source of support was considered, friend (PM = .08) and significant other support (PM = .06) were greater mediators of the effect of emotion dysregulation on depression symptoms than family support (PM = .01). There were no differential mediating effects for support providers on PTSD symptoms. Our findings indicate that social support is a statistically significant yet clinically limited mechanism through which emotion dysregulation is linked with psychiatric symptoms. Implications for these limitations and alternative potentially relevant interpersonal mechanisms are discussed. PMID- 29024031 TI - First-genetic analysis of atypical phenotype of pseudoxanthoma elasticum with ocular manifestations in the absence of characteristic skin lesions. PMID- 29024030 TI - Melatonin prevents endothelial cell pyroptosis via regulation of long noncoding RNA MEG3/miR-223/NLRP3 axis. AB - Atherosclerosis (AS) is an inflammatory disease linked to endothelial dysfunction. Melatonin is reported to possess substantial anti-inflammatory properties, which has proven to be effective in AS. Emerging literature suggests that pyroptosis plays a critical role during AS progression. However, whether pyroptosis contributes to endothelial dysfunction and the underlying molecular mechanisms remained unexploited. This study was designed to investigate the antipyroptotic effects of melatonin in atherosclerotic endothelium and to elucidate the potential mechanisms. In this study, high-fat diet (HFD)-treated ApoE-/- mice were used as an atherosclerotic animal model. We found intragastric administration of melatonin for 12 weeks markedly reduced the atherosclerotic plaque in aorta. Meanwhile, melatonin also attenuated the expression of pyroptosis-related genes, including NLRP3, ASC, cleaved caspase1, NF kappaB/GSDMD, GSDMD N-termini, IL-1beta, and IL-18 in aortic endothelium of melatonin-treated animals. Consistent antipyroptotic effects were also observed in ox-LDL-treated human aortic endothelial cells (HAECs). We found that lncRNA MEG3 enhanced pyroptosis in HAECs. Moreover, MEG3 acted as an endogenous sponge by sequence complementarity to suppress the function of miR-223 and to increase NLRP3 expression and enhance endothelial cell pyroptosis. Furthermore, knockdown of miR-223 blocked the antipyroptotic actions of melatonin in ox-LDL-treated HAECs. Together, our results suggest that melatonin prevents endothelial cell pyroptosis via MEG3/miR-223/NLRP3 axis in atherosclerosis, and therefore, melatonin replacement might be considered a new strategy for protecting endothelium against pyroptosis, thereby for the treatment of atherosclerosis associated with pyroptosis. PMID- 29024032 TI - Que faire? A Bioeconomy and Solar Energy Institute at Italy's Research Council in the Context of the Global Transition to the Solar Economy. AB - Driven by insight for which new research and education requires new institutional organisation, and drawing on two decades of research and educational efforts, we devise the profile and activities of a new bioeconomy and solar energy institute at Italy's Research Council. We further articulate the institute's activities suggesting avenues on how to deploy sound and giving more useful research, education and policy advice in these crucial fields for making tomorrow's common development sustainable. The outcomes of the study are of general interest, because the transition to a solar economy is of intrinsic global nature and the challenges involved are similar in many countries. PMID- 29024034 TI - Maternal control of embryogenesis by MPK6 and its upstream MKK4/MKK5 in Arabidopsis. AB - In flowering plants, developing embryos reside in maternal sporophytes. It is known that maternal generation influences the development of next-generation embryos; however, little is known about the signaling components in the process. Previously, we demonstrated that Arabidopsis mitogen-activated protein kinase 6 (MPK6) and MPK3 play critical roles in plant reproduction. In addition, we noticed that a large fraction of seeds from mpk6 single-mutant plants showed a wrinkled seed coat or a burst-out embryo phenotype. Here, we report that these seed phenotypes can be traced back to defective embryogenesis. The defective embryos have shorter suspensors and reduced growth along the longitudinal axis. Furthermore, the cotyledons fail to bend over to progress to the bent-cotyledon stage. As a result of the uneven circumference along the axis, the seed coat wrinkles to develop raisin-like morphology after dehydration. In more severe cases, the embryo can be pushed out from the micropylar end, resulting in the burst-out embryo seed phenotype. Genetic analyses demonstrated that the defective embryogenesis of the mpk6 mutant is a maternal effect. Heterozygous or homozygous mpk6 embryos have defects only in mpk6 homozygous maternal plants, but not in wild-type or heterozygous maternal plants. The loss of function of MKK4/MKK5 also results in the same phenotypes, suggesting that MKK4/MKK5 might act upstream of MPK6 in this pathway. The maternal-mediated embryo defects are associated with changes in auxin activity maxima and PIN localization. In summary, this research demonstrates that the Arabidopsis MKK4/MKK5-MPK6 cascade is an important player in the maternal control of embryogenesis. PMID- 29024033 TI - Impact of X-irradiation on microglia. AB - Irradiation is widely used to treat brain tumors, and also to create bone marrow (BM) chimeras. BM chimeras are widely used to dissect functions and origin of microglia and blood-derived mononuclear cells under homeostatic or pathological conditions. This is facilitated by the fact that microglia survive irradiation and are thus regarded radio-resistant. In this study, we tested whether microglia are indeed radio-resistant and looked for potential mechanisms that might explain this phenomenon. We analyzed the radio-resistance of microglia independently of their physiological brain environment compared to other mononuclear cells from spleen and brain after X-irradiation with 7 Gy or 30 Gy. Furthermore, we investigated long-term effects of X-irradiation on microglia using organotypic hippocampal slice cultures (OHSCs). We found a significant higher survival rate of isolated microglia 4 hr after X-irradiation with 30 Gy accompanied by a decreased proliferation rate. Investigations of apoptosis-related genes revealed no regulation of a specific antiapoptotic pathway but ataxia telangiectasia mutated (ATM), a DNA-repair-related gene, was significantly upregulated in isolated microglia 4 hr after 30 Gy. Irradiation of OHSCs with 7 and 30 Gy revealed a highly and significantly decreased cell number, morphological changes and an increase in migration velocity of microglia. Furthermore, cell loss, increased soma size and process length of microglia was also found in BM chimeras irradiated with 9.5 Gy 5 weeks after irradiation. Here, we present new evidence implying that microglia are not a homogeneous population of radio-resistant cells and report on long-term alterations of microglia that survived irradiation. PMID- 29024036 TI - How and why do countries differ in their governance and financing-related administrative expenditure in health care? An analysis of OECD countries by health care system typology. AB - INTRODUCTION: Administration is vital for health care. Its importance may increase as health care systems become more complex, but academic attention has remained minimal. We investigated trends in administrative expenditure across OECD countries, cross-country spending differences, spending differences between health care system typologies, and differences in the scale and scope of administrative functions across typologies. METHODS: We used OECD data, which include health system governance and financing-related administrative activities by regulators, governance bodies, and insurers (macrolevel), but exclude administrative expenditure by health care providers (mesolevel and microlevel). RESULTS: We find that governance and financing-related administrative spending at the macrolevel has remained stable over the last decade at slightly over 3% of total health spending. Cross-country differences range from 1.3% of health spending in Iceland to 8.3% in the United States. Voluntary private health insurance bears much higher administrative costs than compulsory schemes in all countries. Among compulsory schemes, multiple payers exhibit significantly higher administrative spending than single payers. Among single-payer schemes, those where entitlements are based on residency have significantly lower administrative spending than those with single social health insurance, albeit with a small difference. DISCUSSION: These differences can partially be explained because multi-payer and voluntary private health insurance schemes require additional administrative functions and enjoy less economies of scale. Studies in hospitals and primary care indicate similar differences in administrative costs across health system typologies at the mesolevel and microlevel of health care delivery, which warrants more research on total administrative costs at all the levels of health systems. PMID- 29024035 TI - The role of human papillomavirus in p16-positive oral cancers. AB - BACKGROUND: The aim of this study was to identify the presence and frequency of human papillomavirus (HPV) nucleic acid in p16-positive oral squamous cell carcinomas (OSCCs), to assess whether the virus was transcriptionally active and to assess the utility of p16 overexpression as a surrogate marker for HPV in OSCC. METHODS: Forty-six OSCC patients treated between 2007 and 2011 with available formalin-fixed paraffin-embedded (FFPE) specimens were included. Twenty three patients were positive for p16 by immunohistochemistry (IHC) and these were matched with 23 patients with p16-negative tumours. Laser capture microdissection of the FFPE OSCC tissues was undertaken to isolate invasive tumour tissue. DNA was extracted and tested for high-risk HPV types using a PCR-ELISA method based on the L1 SPF10 consensus primers, and a real-time PCR method targeting HPV-16 and HPV-18 E6 region. Genotyping of HPV-positive cases was performed using a reverse line blot hybridization assay (Inno-LiPA). RNAScope(r) (a chromogenic RNA in situ hybridization assay) was utilized to detect E6/E7 mRNA of known high-risk HPV types for detection of transcriptionally active virus. RESULTS: HPV DNA was found in 3 OSCC cases, all of which were p16 IHC-positive. Two cases were genotyped as HPV-16 and one as HPV-33. Only one of the HPV-16 cases was confirmed to harbour transcriptionally active virus via HPV RNA ISH. CONCLUSION: We have shown that the presence of transcriptionally active HPV rarely occurs in OSCC and that p16 is not an appropriate surrogate marker for HPV in OSCC cases. We propose that non-viral mechanisms are responsible for the majority of IHC p16 overexpression in OSCC. PMID- 29024037 TI - Reply. PMID- 29024038 TI - Baseline laboratory parameters predicting clinical outcome in melanoma patients treated with ipilimumab: a single-centre analysis. AB - BACKGROUND: Overall response rates (ORRs) for ipilimumab in advanced melanoma are only about 10%. Hence, it is important to explore biomarkers predicting ipilimumab responders. OBJECTIVE: We aimed to explore biomarkers to predict therapy outcome in melanoma patients who have undergone standard ipilimumab therapy in a real-world setting. METHODS: Databases of cutaneous melanoma patients (n = 52) who had received ipilimumab were reviewed and data collected on patient characteristics and diverse laboratory parameters. We performed univariate and multivariate statistics including logistic regression analysis and Cox proportional-hazards regression. RESULTS: Baseline leucocytes, lymphocytes, eosinophils, thrombocytes, neutrophil/lymphocyte ratio, thrombocytes/lymphocyte ratio, eosinophil/lymphocyte ratio and serum vitamin D levels were not significantly associated with ORR, progression-free survival (PFS) and melanoma specific survival (MSS). Multivariate analysis confirmed anti-PD-1 pretreatment as significant predictor for ORR following ipilimumab therapy. Low-LDH levels and more than two ipilimumab cycles turned out to be significant independent predictors for prolonged PFS. Low-S100B levels and anti-PD-1 treatment before or after ipilimumab were significant independent predictors for improved MSS. All aforementioned parameters and faecal calprotectin did not turn out to be predictors for ipilimumab-induced autoimmune-related adverse events and autoimmune colitis, respectively. CONCLUSIONS: Low serum LDH before ipilimumab treatment is an independent predictor for improved PFS. Furthermore, low serum S100B is an independent predictor for MSS. The number of ipilimumab cycles (>2) is significantly associated with prolonged PFS. Pretreatment calprotectin does not predict the occurrence of autoimmune colitis under ipilimumab therapy. PMID- 29024039 TI - The Electrical and Optical Properties of Organometal Halide Perovskites Relevant to Optoelectronic Performance. AB - Organometal halide perovskites are under intense study for use in optoelectronics. Methylammonium and formamidinium lead iodide show impressive performance as photovoltaic materials; a premise that has spurred investigations into light-emitting devices and photodetectors. Herein, the optical and electrical material properties of organometal halide perovskites are reviewed. An overview is given on how the material composition and morphology are tied to these properties, and how these properties ultimately affect device performance. Material attributes and techniques used to estimate them are analyzed for different perovskite materials, with a particular focus on the bandgap, mobility, diffusion length, carrier lifetime, and trap-state density. PMID- 29024040 TI - Metal-Halide Perovskite Transistors for Printed Electronics: Challenges and Opportunities. AB - Following the unprecedented rise in photovoltaic power conversion efficiencies during the past five years, metal-halide perovskites (MHPs) have emerged as a new and highly promising class of solar-energy materials. Their extraordinary electrical and optical properties combined with the abundance of the raw materials, the simplicity of synthetic routes, and processing versatility make MHPs ideal for cost-efficient, large-volume manufacturing of a plethora of optoelectronic devices that span far beyond photovoltaics. Herein looks beyond current applications in the field of energy, to the area of large-area electronics using MHPs as the semiconductor material. A comprehensive overview of the relevant fundamental material properties of MHPs, including crystal structure, electronic states, and charge transport, is provided first. Thereafter, recent demonstrations of MHP-based thin-film transistors and their application in logic circuits, as well as bi-functional devices such as light sensing and light-emitting transistors, are discussed. Finally, the challenges and opportunities in the area of MHPs-based electronics, with particular emphasis on manufacturing, stability, and health and environmental concerns, are highlighted. PMID- 29024041 TI - Strength training improves double-poling performance after prolonged submaximal exercise in cross-country skiers. AB - The purpose of this study was to investigate the effects of adding strength training with or without vibration to cross-country (XC) skiers' endurance training on double-poling (DP) performance, physiological, and kinematic adaptations. Twenty-one well-trained male XC-skiers combined endurance- and upper body strength training three times per week, either with (n = 11) or without (n = 10) superimposed vibrations for 8 weeks, whereas eight skiers performed endurance training only (CON). Testing included 1RM in upper-body exercises, work economy, neural activation, oxygen saturation in muscle, and DP kinematics during a prolonged submaximal DP roller ski test which was directly followed by a time to exhaustion (TTE) test. TTE was also performed in rested state, and the difference between the two TTE tests (TTEdiff ) determined the ability to maintain DP performance after prolonged exercise. Vibration induced no additional effect on strength or endurance gains. Therefore, the two strength training groups were pooled (STR, n = 21). 1RM in STR increased more than in CON (P < .05), and there were no differences in changes between STR and CON in any measurements during prolonged submaximal DP. STR improved TTE following prolonged DP (20 +/- 16%, P < .001) and revealed a moderate effect size compared to CON (ES = 0.80; P = .07). Furthermore, STR improved TTEdiff more than CON (P = .049). In conclusion, STR superiorly improved 1RM strength, DP performance following prolonged submaximal DP and TTEdiff , indicating a specific effect of improved strength on the ability to maintain performance after long-lasting exercise. PMID- 29024042 TI - Pro-inflammatory M1 macrophage enhances metastatic potential of ovarian cancer cells through NF-kappaB activation. AB - Obesity is a serious health problem and critically related to poor prognosis in cancer, presumably through induction of chronic inflammation. The major culprit for cancer progression in obesity is presumed to be macrophages. Accumulation of macrophages in adipose tissue due to obesity induced chronic inflammation has been observed. However, obesity-induced macrophage accumulation related to ovarian cancer progression remains unclear. So, the role of macrophage in cancer progression is needed to be further defined for therapeutic intervention. Here we determined the effect of macrophage type 1 (M1 macrophage) on ovarian cancer cells in relation to the metastasis. Ovarian cancer cell lines (PA-1, SKOV3) and monocyte-derived macrophages were used in this study. Treatment with M1 macrophage conditioned media on ovarian cancer cells increased the metastatic potential, such as migration and invasion capabilities. Interestingly, upon treatment with M1 macrophage conditioned media, nuclear translocation of NF kappaB, p60, and p50, from the cytosol was enhanced together with increased transcriptional activity of the NF-kappaB. Pre-treatment with TPCK (NF-kappaB inhibitor) and NF-kappaB siRNA on ovarian cancer cells suppressed M1 macrophage induced metastatic potential. Furthermore, Treatment of TNF-alpha on ovarian cancer cells showed NF-kappaB activation. Co-treatment with TNF-alpha inhibitor, etanercept, and M1 macrophage conditioned media on ovarian cancer cell lines reversed M1 macrophage conditioned media induced NF-kappaB activation. Taken together, TNF-alpha released from M1 macrophage increased metastatic potential in ovarian cancer cells through the activation of NF-kappaB signaling pathway. These results provide a new insight into the critical role of M1 macrophage in the tumor microenvironment in ovarian cancer. PMID- 29024044 TI - 4D Biofabrication Using Shape-Morphing Hydrogels. AB - Despite the tremendous potential of bioprinting techniques toward the fabrication of highly complex biological structures and the flourishing progress in 3D bioprinting, the most critical challenge of the current approaches is the printing of hollow tubular structures. In this work, an advanced 4D biofabrication approach, based on printing of shape-morphing biopolymer hydrogels, is developed for the fabrication of hollow self-folding tubes with unprecedented control over their diameters and architectures at high resolution. The versatility of the approach is demonstrated by employing two different biopolymers (alginate and hyaluronic acid) and mouse bone marrow stromal cells. Harnessing the printing and postprinting parameters allows attaining average internal tube diameters as low as 20 um, which is not yet achievable by other existing bioprinting/biofabrication approaches and is comparable to the diameters of the smallest blood vessels. The proposed 4D biofabrication process does not pose any negative effect on the viability of the printed cells, and the self folded hydrogel-based tubes support cell survival for at least 7 d without any decrease in cell viability. Consequently, the presented 4D biofabrication strategy allows the production of dynamically reconfigurable architectures with tunable functionality and responsiveness, governed by the selection of suitable materials and cells. PMID- 29024043 TI - Proteomic analysis of the venom of the predatory ant Pachycondyla striata (Hymenoptera: Formicidae). AB - The ants use their venom for predation, defense, and communication. The venom of these insects is rich in peptides and proteins, and compared with other animal venoms, ant venoms remain poorly explored. The objective of this study was to evaluate the protein content of the venom in the Ponerinae ant Pachycondyla striata. Venom samples were collected by manual gland reservoir dissection, and samples were submitted to two-dimensional gel electrophoresis and separation by ion-exchange and reverse-phase high-performance liquid chromatography followed by mass spectrometry using tanden matrix-assisted laser desorption/ionization with time-of-flight (MALDI-TOF/TOF) mass spectrometry and electrospray ionization quadrupole with time-of-flight (ESI-Q/TOF) mass spectrometry for obtaining amino acid sequence. Spectra obtained were searched against the NCBInr and SwissProt database. Additional analysis was performed using PEAKS Studio 7.0 (Sequencing de novo). The venom of P. striata has a complex mixture of proteins from which 43 were identified. Within the identified proteins are classical venom proteins (phospholipase A, hyaluronidase, and aminopeptidase N), allergenic proteins (different venom allergens), and bioactive peptides (U10-ctenitoxin Pn1a). Venom allergens are among the most expressed proteins, suggesting that P. striata venom has high allergenic potential. This study discusses the possible functions of the proteins identified in the venom of P. striata. PMID- 29024045 TI - Association Between Dietary Fiber Intake and Bone Loss in the Framingham Offspring Study. AB - Dietary fiber may increase calcium absorption, but its role in bone mineralization is unclear. Furthermore, the health effect of dietary fiber may be different between sexes. We examined the association between dietary fiber (total fiber and fiber from cereal, fruits, vegetables, nuts, and legumes) and bone loss at the femoral neck, trochanter, and lumbar spine (L2 to L4 ) in older men and women. In the Framingham Offspring Study, at baseline (1996-2001), diet was assessed using the Willett food-frequency questionnaire, and bone mineral density (BMD) was measured using dual-energy X-ray absorptiometry. Follow-up BMD was measured in 2001-2005 and 2005-2008 among 792 men (mean age 58.1 years; BMI 28.6 kg/m2 ) and 1065 women (mean age 57.3 years; BMI 27.2 kg/m2 ). We used sex specific generalized estimating equations in multivariable regressions to estimate the difference (beta) of annualized BMD change in percent (%DeltaBMD) at each skeletal site per 5 g/d increase in dietary fiber. We further estimated the adjusted mean for bone loss (annualized %DeltaBMD) among participants in each higher quartile (Q2, Q3, or Q4) compared with those in the lowest quartile (Q1) of fiber intake. Higher dietary total fiber (beta = 0.06, p = 0.003) and fruit fiber (beta = 0.10, p = 0.008) was protective against bone loss at the femoral neck in men but not in women. When examined in quartiles, men in Q2-Q4 of total fiber had significantly less bone loss at the femoral neck versus those in Q1 (all p < 0.04). For women, we did not observe associations with hip bone loss, although fiber from vegetables appeared to be protective against spine bone loss in women but not men. There were no associations with cereal fiber or nut and legume fiber and bone loss in men or women. Our findings suggest that higher dietary fiber may modestly reduce bone loss in men at the hip. (c) 2017 American Society for Bone and Mineral Research. PMID- 29024046 TI - Traumatic brain injury in the prodromal period of Parkinson's disease: A large epidemiological study using medicare data. AB - OBJECTIVE: Studies suggest a greater risk of Parkinson's disease (PD) after traumatic brain injury (TBI), but it is possible that the risk of TBI is greater in the prodromal period of PD. We aimed to examine the time-to-TBI in PD patients in their prodromal period compared to population-based controls. METHODS: We identified 89,790 incident PD cases and 118,095 comparable controls aged > 65 years in 2009 using Medicare claims data. Using data from the preceding 5 years, we compared time-to-TBI in PD patients in their prodromal period to controls. We estimated hazard ratios (HRs) and 95% confidence intervals (CIs) for TBI in a Cox regression, while adjusting for age, sex, race/ethnicity, modified Charlson comorbidity index, smoking, and alcohol use. RESULTS: Risk of TBI was greater in PD patients in their prodromal period across all age and sex groups, with HRs consistently increasing with proximity to PD diagnosis. HRs ranged from 1.64 (95% CI, 1.52, 1.77) 5 years preceding diagnosis to 3.93 (95% CI, 3.74, 4.13) in the year before. The interaction between PD, TBI, and time was primarily observed for TBI attributed to falls. Motor dysfunction and cognitive impairment, suggested by corresponding International Classification of Diseases, Ninth Revision codes, partially mediated the PD-TBI association. INTERPRETATION: There is a strong association between PD and a recent TBI in the prodromal period of PD. This association strengthens as PD diagnosis approaches and may be a result of undetected nonmotor and motor symptoms, but confirmation will be required. Ann Neurol 2017;82:744-754. PMID- 29024049 TI - A cross-sectional study of the perceptions about triggering factors in acne patients. PMID- 29024047 TI - A Gallium Hydride as an Oxidizing Agent: Direct Synthesis of IrV Complexes via Ga H Bond Activation. AB - Reactions of the beta-diketiminate-stabilized gallium dihydride (Nacnac)Dipp GaH2 with chelating IrI bis(phosphine) precursors under an H2 atmosphere are shown to provide a simple route to IrV complexes stabilized by strongly sigma-donating hydrides and the carbene-like (Nacnac)Dipp Ga donor. Characterization of these systems as seven-coordinate IrV tetrahydride species is supported by single crystal X-ray and neutron diffraction, and by T1 NMR measurements. By contrast related systems featuring more sterically demanding (non-chelating) ancillary ligands are better described in terms of a bis(hydride) dihydrogen [L3 Ir(H)2 (H2 )]+ formulation and a formal IrIII oxidation state. PMID- 29024048 TI - The impact of adult-to-adult living donor liver transplantation on transplant center outcomes reporting. AB - BACKGROUND: The Scientific Registry of Transplant Recipients (SRTR) has released a 5-tier performance ranking system based upon results of deceased-donor and living-donor liver transplantation. MATERIALS AND METHODS: An analysis of Spring 2017 SRTR Program Specific Reports for outcomes of adult living-donor and deceased-donor liver transplantation. RESULTS: Utilizing the current SRTR performance algorithm, living-donor liver transplant results may disproportionately affect transplant center performance ranking. CONCLUSION: Improvements in SRTR performance ranking including transparency in outcomes calculation, a calculating tool for transplant centers, and the potential reporting of living-donor outcomes as a separate report are necessary. PMID- 29024050 TI - Elastic Surface Model For Beta-Barrels: Geometric, Computational, And Statistical Analysis. AB - Over the past 2 decades, many different geometric models were created for beta barrels, including, but not limited to: cylinders, 1-sheeted hyperboloids, twisted hyperboloids, catenoids, and so forth. We are proponents of an elastic surface model for beta-barrels, which includes the minimal surface model as a particular case, but is a lot more comprehensive. Beta barrel models are obtained as numerical solutions of a boundary value problem, using the COMSOL Multiphysics Modeling Software. We have compared them against the best fitting statistical models, with positive results. The geometry of each individual beta barrel, as a rotational elastic surface, is determined by the ratio between the exterior diameter and the height. Through our COMSOL computational modeling, we created a rather large variety of generalized Willmore surfaces that may represent models for beta barrels. The catenoid is just a particular solution among all these shapes. PMID- 29024051 TI - Lifetime end-stage kidney disease risk estimation in living kidney donor candidates remains a challenge. PMID- 29024052 TI - Superlyophilic Interfaces and Their Applications. AB - Superlyophilic interfaces denote interfaces displaying strong affinity to diverse liquids, including superhydrophilic, superoleophilic, and superamphiphilic interfaces. When coming in contact with these interfaces, water or oil droplets tend to spread completely with contact angles close to 0 degrees , presenting versatile applications including self-cleaning, antifogging, controllable liquid transport, liquid separation, and so forth. Inspired by nature, scientists have developed various kinds of artificial superlyophilic (SLPL) interfaces in the past decades. In terms of dimensional characteristics, the artificial SLPL interfaces can be divided into four categories: i) 0D particles, whose dispersibility or catalytic performance can be notably enhanced by superlyophilicity; ii) 1D micro-/nanofibers or nanotubes/channels, which can efficiently transfer liquids with SLPL interfaces; iii) 2D flat SLPL interfaces, on which different functional molecules can be deposited uniformly, forming ultrathin and smooth films; and iv) 3D structures, which can be obtained by either constructing 0D, 1D, or 2D SLPL materials separately or directly fabricating random SLPL frameworks, and can always be used as functional coatings or bulk materials. Here, natural and artificial SLPL interfaces are briefly introduced, followed by a short discussion of the limit between lyophilicity and lyophobicity, and then a snapshot of methods to generate SLPL interfaces is given. Specific focus is placed on recent achievements of constructing SLPL interfaces from zero to three dimensions. Following that, broad applications of SLPL interfaces in commercial areas will be introduced. Finally, a short summary and outlook for future challenges in this field is presented. PMID- 29024053 TI - Direct effect of pholyphenol-rich plants, rooibos and ginkgo, on porcine ovarian cell functions. AB - The polyphenol-rich plants rooibos and ginkgo are widely used in folk medicine and in preparation of foods and drinks, but their effect on reproduction has not been properly studied yet. The aim of our in vitro experiments was to examine the possible direct effect of rooibos and ginkgo on the basic ovarian cell functions proliferation, apoptosis and release of hormones progesterone (P4) and leptin (L). Porcine ovarian granulosa cells were cultured in the presence of rooibos or ginkgo extract (0, 1, 10 and 100 MUg/ml of medium). The accumulation of markers of proliferation (PCNA and cyclin B1) and apoptosis (bax) and their mRNAs was analysed using immunocytochemistry and by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Release of P4 and L was evaluated by radioimmunoassay. It was observed that rooibos or ginkgo addition was able to inhibit proliferation (down-regulates PCNA, cyclin B1 and their mRNAs), to promote apoptosis (accumulation of bax) and to suppress both L and P4 release by ovarian cells. These data suggest a direct inhibitory (anti-proliferative, pro apoptotic and hormone-suppressing) effect of polyphenol-containing plants rooibos and ginkgo on ovarian functions. The potential anti-reproductive effect of these medical plants is to be taken into account by their consumption. PMID- 29024055 TI - Metal-Ligand Multiple Bonding in Thorium Phosphorus and Thorium Arsenic Complexes. AB - The complexes (C5 Me5 )2 Th(EHTipp)2 , (E=P or As; Tipp=2,4,6 triisopropylphenyl), provide a ligand framework that results in facile access to rare Th-E multiple bonds. The reaction of (C5 Me5 )2 Th(EHTipp)2 with KN(SiMe3 )2 , proceeds cleanly to the desired bridging phosphinidiide or arsinidiide complex, [{(C5 Me5 )2 Th(MU2 -ETipp)(MU2 -EHTipp)}K]2 under ambient conditions. In the absence of a chelating agent, the potassium cation of one monomeric unit interacts with the aryl ring of a second monomer to form a bridged dimer. In the presence of 2,2,2-cryptand, the terminal phosphinidene complex, [(C5 Me5 )2 Th=PTipp(PHTipp)][K(2,2,2-cryptand)] is isolated. Using X-ray crystallographic analysis, we have determined these complexes display the shortest Th-P and Th-As bond lengths reported. PMID- 29024054 TI - Multifunctional Nanohybrid Based on Porous Silicon Nanoparticles, Gold Nanoparticles, and Acetalated Dextran for Liver Regeneration and Acute Liver Failure Theranostics. AB - Herein, a novel nanohybrid based on porous silicon, gold nanoparticles (Au NPs), and acetalated dextran (DPSi/DAu@AcDEX) is reported to encapsulate and deliver one drug and increase the computer tomography (CT) signal for acute-liver-failure (ALF) theranostics. A microfluidic-assisted method is used to co-encapsulate different NPs in a single step. By alternating the surface properties of different NPs and by modulating the composition of the organic phase, both PSi and Au NPs are effectively encapsulated into the polymer matrix simultaneously, thus further achieving a multifunctional application. This system can be used to identify pathologically changes in the tissues and selectively deliver drugs to these sites. The loading of a therapeutic compound (XMU-MP-1) improves the drug solubility, precise, in situ drug delivery, and the drug-functioning time. In vivo results confirm a superior treatment effect and better compliance of this newly developed nanoformulation than free compound. This nanosystem plays a crucial role in targeting the lesion area, thus increasing the local drug concentration important for ALF reverse-effect. Moreover, the residence of Au NPs within the matrix further endows our system for CT-imaging. Altogether, these results support that this nanohybrid is a potential theranostic platform for ALF. PMID- 29024056 TI - Stereoselective Sulfinyl Aniline-Promoted Pd-Catalyzed C-H Arylation and Acetoxylation of Aliphatic Amides. AB - Stereoselective functionalization of aliphatic C-H bonds presents a great challenge. Following this target, we disclose herein an original strategy towards direct arylation of aliphatic chains at beta-methylene position based on a use of amide-sulfoxide bicoordinating directing group. Although moderate to high chiral induction (up to 9:1 d.r.) is achieved, diastereomerically pure compounds may be afforded by simple separation of diastereomeric products by silica gel chromatography. Accordingly, this reaction allows preparation of a large scope of high-value scaffolds in synthetically useful yields while recyclable character of our chiral auxiliary brings an additional benefit. A potential of this methodology to build up original molecules by sequential diarylation and expedient (two step) synthesis of a biologically active compound are further disclosed. Finally a first example of stereoselective direct acetoxylation of aliphatic chains is reported. PMID- 29024058 TI - Enantiopurity and absolute configuration determination of arene cis-dihydrodiol metabolites and derivatives using chiral boronic acids. AB - The relative merits of the methods employed to determine enantiomeric excess (ee) values and absolute configurations of chiral arene and alkene cis-1,2-diol metabolites, including boronate formation, using racemic or enantiopure (+) and ( )-2-(1-methoxyethyl)phenylboronic acid (MEPBA), are discussed. Further applications of: 1) MEPBA derived boronates of chiral mono- and poly-cyclic arene cis-dihydrodiol, cyclohex-2-en-1-one cis-diol, heteroarene cis/trans-2,3-diol, and catechol metabolites in estimating their ee values, and 2) new chiral phenylboronic acids, 2-[1-methoxy-2,2-dimethylpropyl]phenyl boronic acid (MDPBA) and 2-[1-methoxy-1-phenylmethyl]phenyl boronic acid (MPPBA) and their advantages over MEPBA, as reagents for stereochemical analysis of arene and alkene cis-diol metabolites, are presented. PMID- 29024057 TI - Increasing candidaemia incidence from 2004 to 2015 with a shift in epidemiology in patients preexposed to antifungals. AB - Candidaemia is an important health problem in immunocompromised patients with an epidemiology varying with region, period and patient population involved. The occurrence of candidaemia and the associated species distribution over a 12-year period at a large tertiary care centre in Belgium were analysed. The trend in incidence in the intensive care units (ICUs) and non-ICUs was investigated as well as the influence of antifungal exposure on the species distribution. From 2004 until 2015, 865 candidaemia episodes occurred in 826 patients at the University Hospitals Leuven. Candida albicans (59%) remained the most important cause of candidaemia, followed by C. glabrata (22.4%) and C. parapsilosis (8%). The mean incidence in the whole hospital was 1.48 per 10 000 patient days (PD). The incidence in ICUs increased reaching up to 10.7 per 10 000 PD whereas in the non-ICUs, the incidence decreased. Prior exposure to fluconazole and echinocandins was associated with candidaemia caused by less susceptible species. Candidaemia incidence increased in the whole hospital, driven by ICUs. Surveillance of candidaemia epidemiology on a local scale is of high value to guide empirical treatment strategies. PMID- 29024059 TI - Superaligned Carbon Nanotubes Guide Oriented Cell Growth and Promote Electrophysiological Homogeneity for Synthetic Cardiac Tissues. AB - Cardiac engineering of patches and tissues is a promising option to restore infarcted hearts, by seeding cardiac cells onto scaffolds and nurturing their growth in vitro. However, current patches fail to fully imitate the hierarchically aligned structure in the natural myocardium, the fast electrotonic propagation, and the subsequent synchronized contractions. Here, superaligned carbon-nanotube sheets (SA-CNTs) are explored to culture cardiomyocytes, mimicking the aligned structure and electrical-impulse transmission behavior of the natural myocardium. The SA-CNTs not only induce an elongated and aligned cell morphology of cultured cardiomyocytes, but also provide efficient extracellular signal-transmission pathways required for regular and synchronous cell contractions. Furthermore, the SA-CNTs can reduce the beat-to-beat and cell-to cell dispersion in repolarization of cultured cells, which is essential for a normal beating rhythm, and potentially reduce the occurrence of arrhythmias. Finally, SA-CNT-based flexible one-piece electrodes demonstrate a multipoint pacing function. These combined high properties make SA-CNTs promising in applications in cardiac resynchronization therapy in patients with heart failure and following myocardial infarctions. PMID- 29024061 TI - In vitro studies of the antimicrobial effect of non-thermal plasma-activated water as a novel mouthwash. AB - The aim of this study was to evaluate the antimicrobial effects of non-thermal plasma-activated water (PAW) as a novel mouthwash in vitro. Three representative oral pathogens - Streptococcus mutans, Actinomyces viscosus and Porphyromonas gingivalis - were treated with PAW. The inactivation effect was evaluated using the colony-forming unit (CFU) method, and the morphological and structural changes of a cell were observed by scanning electron microscopy and transmission electron microscopy (TEM). The physicochemical properties of PAW were analysed, and its influence on the leakage of intracellular proteins and DNA was evaluated. The results showed significant reduction of Streptococcus mutans within 60 s, of Actinomyces viscosus within 40 s, and of Porphyromonas gingivalis in less than 40 s. Scanning electron microscopy and TEM images showed that the normal cell morphology changed by varying degrees after treatment with PAW. Intracellular proteins (280 nm) and DNA (260 nm) leaked from all three species of bacteria after treatment with PAW. Reactive oxygen species (ROS), especially atomic oxygen (O), hydroxyl radical (OH), and hydrogen peroxide (H2 O2 ), were generated and led to strong oxidative stress and cell damage. These results suggest that PAW has potential use as a novel antimicrobial mouthwash. PMID- 29024062 TI - Why run the risk? Motivation for offences by patients with substance use and antisocial personality disorders which they rated as most risky to their own well being. AB - BACKGROUND: Understanding motives for offending is important for the development and delivery of effective interventions. AIMS: To explore associations between variables with motivational implications and the offence committed in the past year rated by people with antisocial personality disorder and substance use disorder as putting them and their status at most risk. METHODS: Participants were 127 outpatients from a sample recruited for a pragmatic randomised controlled trial of an intervention for adults attending substance abuse treatment clinics in 13 municipalities in Denmark. Motives for offending were assessed on one occasion, using the Offending Motivation Questionnaire, aggression was assessed using the Buss-Perry Aggression Questionnaire and substance-related problems, including mental state difficulties, were assessed using the Substance Use Risk Profile. RESULTS: Attributing offending to provocation, excitement or financial gain differed substantially by type of offence, whereas attribution of offending to compliance did not. Personality scale scores were associated with attributing offences to provocation, excitement or compliance but not with financial gain. CONCLUSIONS: Motives for offending among substance users with antisocial personality disorder must be understood both in light of the type of offence and personality traits. Offending behaviour prevention strategies that draw on these distinctions, run in parallel to treatment for substance use, could improve reduction in recidivism. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29024060 TI - Loss of Dnmt3b in Chondrocytes Leads to Delayed Endochondral Ossification and Fracture Repair. AB - Despite advanced understanding of signaling mediated by local and systemic factors, the role of epigenetic factors in the regulation of bone regeneration remains vague. The DNA methyltransferases (Dnmts) Dnmt3a and Dnmt3b have tissue specific expression patterns and create unique methylation signatures to regulate gene expression. Using a stabilized murine tibia fracture model we find that Dnmt3b is induced early in fracture healing, peaks at 10 days post fracture (dpf), and declines to nearly undetectable levels by 28 dpf. Dnmt3b expression was cell-specific and stage-specific. High levels were observed in chondrogenic lineage cells within the fracture callus. To determine the role of Dnmt3b in fracture healing, Agc1CreERT2 ;Dnmt3bf/f (Dnmt3bAgc1ER ) mice were generated to delete Dnmt3b in chondrogenic cells. Dnmt3bAgc1ER fracture displayed chondrogenesis and chondrocyte maturation defect, and a delay in the later events of angiogenesis, ossification, and bone remodeling. Biomechanical studies demonstrated markedly reduced strength in Dnmt3bAgc1ER fractures and confirmed the delay in repair. The angiogenic response was reduced in both vessel number and volume at 10 and 14 dpf in Dnmt3bAgc1ER mice. Immunohistochemistry showed decreased CD31 expression, consistent with the reduced angiogenesis. Finally, in vitro angiogenesis assays with human umbilical vein endothelial cells (HUVECs) revealed that loss of Dnmt3b in chondrocytes significantly reduced tube formation and endothelial migration. To identify specific angiogenic factors involved in the decreased callus vascularization, a protein array was performed using conditioned media isolated from control and Dnmt3b loss-of-function chondrocytes. Several angiogenic factors, including CXCL12 and osteopontin (OPN) were reduced in chondrocytes following loss of Dnmt3b. DNA methylation analysis further identified hypomethylation in Cxcl12 promoter region. Importantly, the defects in tube formation and cell migration could be rescued by administration of CXCL12 and/or OPN. Altogether, our findings establish that Dnmt3b positively regulates chondrocyte maturation process, and its genetic ablation leads to delayed angiogenesis and fracture repair. (c) 2017 American Society for Bone and Mineral Research. PMID- 29024063 TI - Influence of ration composition on nutritive and digestive variables in captive giraffes (Giraffa camelopardalis) indicating the appropriateness of feeding practice. AB - The nutrition of captive giraffe (Giraffa camelopardalis), a browsing ruminant, is challenging because browse availability is limited in zoos and rations need to be composed of compensatory feeds. In this study, ration composition for giraffes in 12 German zoos was documented and linked to animal variables that indicate suitability of nutrition. Rations differed in proportion of ration items and chemical composition resulting in various grades of accordance with feeding recommendations. An estimated daily metabolisable energy (ME) intake (MEI; mean +/- SD) of 0.61 MJ ME/kg0.75 body weight (BW; +/-0.1) was sufficient to cover estimated energy requirements. Daily dry matter (DM) intake (DMI) was 61 g DM/kg0.75 BW (+/-10) and correlated negatively to dietary ME content (p = .009; r = -.596). Apparently, feed intake was regulated by energetic satiety and not by physical properties of forage. A negative correlation between produce proportion and DMI (p = .002; r = -.676) led to the assumption of a low ruminal pH in giraffes fed high proportions of produce. Increasing dietary forage proportions led to an increasing duration of feed intake (p = .045; r = .477) and decreasing occurrence of oral stereotypies (p = .047; r = -.474). The weighted average faecal particle size was larger than reported for free-ranging giraffes, but no relation to ration characteristics among the facilities existed. The abrasiveness of rations was not excessive, as contents of silicate in faeces were similar to values from the wild. Body condition was generally acceptable, but there was no evident relation to ration characteristics. The capacity to self-regulate DM and ME intakes with lucerne hay may work at higher forage proportions than often assumed for captive giraffes. Rations with less energetic density can result in a greater DMI, including maximisation of forage intake and reduction of oral stereotypies. PMID- 29024064 TI - Physiological and health-related response of broiler chickens fed diets containing raw, full-fat soya bean meal supplemented with microbial protease. AB - A 2 * 3 factorial study (protease: 0 or 1,5000 PROT/kg and raw full-fat soya bean meal [RSBM] replacing the commercial SBM at 0, 45 and 75 g/kg of diet) was conducted to examine the performance of broilers. Phytase (2000 FYT/kg) was uniformly added to each diet, each also replicated six times, with eight birds per replicate. Birds were raised in climate-controlled rooms using sawdust as the bedding material and offered starter, grower and finisher diets. Feed intake (FI) and body weight gain (BWG) were reduced (p < .05) due to increasing levels of RSBM, but feed conversion ratio (FCR; 0-35 days) was unaffected. Over the first 24 days, neither RSBM nor protease supplementation affected (p > .05) mortality, footpad dermatitis or intestinal lesions in birds. At day 24, the weight, length, width and strength of tibia bone were reduced in chickens that received an elevated level of RSBM (75 g/kg of diet), but this was not significant at day 35. At day 24 (p < .05) and 35 (p < .01), Ca concentration in the litter was reduced when the RSBM level was increased in the diet, but P content was not affected. On days 24 (p < .05) and 35 (p < .01), the N content in litter was also increased with increase in dietary RSBM. Protease supplementation increased (p < .05) the uric acid concentration in the litter (at day 35), but the reverse was the case for ammonia concentration. Overall, the results of this study indicate that there are no major health-related risks, associated with the replacement of commercial SBM with RSBM (<=25%) in broiler diets. PMID- 29024065 TI - 2D Organic Materials for Optoelectronic Applications. AB - The remarkable merits of 2D materials with atomically thin structures and optoelectronic attributes have inspired great interest in integrating 2D materials into electronics and optoelectronics. Moreover, as an emerging field in the 2D-materials family, assembly of organic nanostructures into 2D forms offers the advantages of molecular diversity, intrinsic flexibility, ease of processing, light weight, and so on, providing an exciting prospect for optoelectronic applications. Herein, the applications of organic 2D materials for optoelectronic devices are a main focus. Material examples include 2D, organic, crystalline, small molecules, polymers, self-assembly monolayers, and covalent organic frameworks. The protocols for 2D-organic-crystal-fabrication and -patterning techniques are briefly discussed, then applications in optoelectronic devices are introduced in detail. Overall, an introduction to what is known and suggestions for the potential of many exciting developments are presented. PMID- 29024066 TI - A comparison of exogenous and endogenous CEST MRI methods for evaluating in vivo pH. AB - PURPOSE: Extracellular pH (pHe) is an important biomarker for cancer cell metabolism. Acido-chemical exchange saturation transfer (CEST) MRI uses the contrast agent iopamidol to create spatial maps of pHe. Measurements of amide proton transfer exchange rates (kex ) from endogenous CEST MRI were compared to pHe measurements by exogenous acido-CEST MRI to determine whether endogenous kex could be used as a proxy for pHe measurements. METHODS: Spatial maps of pHe and kex were obtained using exogenous acidoCEST MRI and an endogenous CEST MRI analyzed with the omega plot method, respectively, to evaluate mouse kidney, a flank tumor model, and a spontaneous lung tumor model. The pHe and kex results were evaluated using pixelwise comparisons. RESULTS: The kex values obtained from endogenous CEST measurements did not correlate with the pHe results from exogenous CEST measurements. The kex measurements were limited to fewer pixels and had a limited dynamic range relative to pHe measurements. CONCLUSION: Measurements of kex with endogenous CEST MRI cannot substitute for pHe measurements with acidoCEST MRI. Whereas endogenous CEST MRI may still have good utility for evaluating some specific pathologies, exogenous acido-CEST MRI is more appropriate when evaluating pathologies based on pHe values. Magn Reson Med 79:2766-2772, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29024068 TI - Autosomal recessive epidermolysis bullosa simplex due to KRT14 mutation: two large Palestinian families and literature review. PMID- 29024069 TI - Functional analysis of ESM1 by siRNA knockdown in primary and metastatic head and neck cancer cells. AB - BACKGROUND: Genetic factors play a large role in cancer, and thus, there is a great desire to understand the effects of different genes in cancer and to also develop gene therapy for better treatments. Therefore, the development of alternative diagnosis and therapy modalities is of utmost importance. The aim of our study was to illuminate the role of ESM1 (endothelial cell-specific molecule 1, also known as Endocan) in proliferation and migration of head and neck cancer, thus helping to pave the way for new treatment modalities and predictive biomarkers. METHODS: ESM1 expression was shown with immunofluorescence assay using confocal laser scanning microscope in primary and metastatic head and neck cancer cells. ESM1 expression was knocked down by RNA interference in head and neck cancer cells. Knockdown efficiency was evaluated by quantitative real-time RT-PCR and Western blot. Cell proliferation and migration assays were performed by xCELLigence real-time cell analysis system. RESULTS: Immunofluorescence assay showed nuclear localization and high expression of ESM1 in primary and metastatic head and neck cancer cells. ESM1 mRNA and protein levels were significantly decreased in ESM1-knockdown cells compared to control. ESM1-knockdown cells showed reduced proliferation and migration activity when compared to control cells. CONCLUSION: These findings suggest that ESM1 has roles on proliferation and migration of head and neck cancer cells. PMID- 29024067 TI - Evaluation of multiplex real-time PCR for identifying dermatophytes in clinical samples-A multicentre study. AB - The gold-standard method for dermatophyte identification involves direct microscopy and culture, which have inherent shortcomings. Only few molecular methods have been standardised for routine clinical work. This study aimed to develop and test a platform for identifying the most common dermatophytes in Israel using multiplex real-time polymerase chain reaction (RT-PCR). Specific primers were designed for the multiplex system (LightCycler 480) according to known cultures and validated by reference isolates. The dermatophyte detection rate was compared to smear and culture in 223 clinical samples obtained from a tertiary medical centre. Inconsistencies between methods were evaluated by sequencing. The RT-PCR was further evaluated in 200 community-based samples obtained from a health maintenance organisation and 103 military-personnel-based samples analysed at a central laboratory. In hospital-based clinical samples, complete concordance between methods was observed in 190 samples (85%; Kappa = 0.69). In most cases of non-concordance, sequencing was consistent with RT-PCR results. RT-PCR correctly identified all smear- and culture-positive cases in community and military-personnel samples. The results were available within 4 hours. The multiplex RT-PCR platform is a rapid and efficient method for identifying dermatophyte species in clinical samples and may serve as a first step in the diagnostic algorithm of superficial fungal infections. PMID- 29024070 TI - The tyranny of numbers, large and small. PMID- 29024071 TI - An unjustified benefit: immortal time bias in the analysis of time-dependent events. AB - Immortal time bias is a problem arising from methodologically wrong analyses of time-dependent events in survival analyses. We illustrate the problem by analysis of a kidney transplantation study. Following patients from transplantation to death, groups defined by the occurrence or nonoccurrence of graft failure during follow-up seemingly had equal overall mortality. Such naive analysis assumes that patients were assigned to the two groups at time of transplantation, which actually are a consequence of occurrence of a time-dependent event later during follow-up. We introduce landmark analysis as the method of choice to avoid immortal time bias. Landmark analysis splits the follow-up time at a common, prespecified time point, the so-called landmark. Groups are then defined by time dependent events having occurred before the landmark, and outcome events are only considered if occurring after the landmark. Landmark analysis can be easily implemented with common statistical software. In our kidney transplantation example, landmark analyses with landmarks set at 30 and 60 months clearly identified graft failure as a risk factor for overall mortality. We give further typical examples from transplantation research and discuss strengths and limitations of landmark analysis and other methods to address immortal time bias such as Cox regression with time-dependent covariables. PMID- 29024072 TI - Structurally Deformed MoS2 for Electrochemically Stable, Thermally Resistant, and Highly Efficient Hydrogen Evolution Reaction. AB - The emerging molybdenum disulfide (MoS2 ) offers intriguing possibilities for realizing a transformative new catalyst for driving the hydrogen evolution reaction (HER). However, the trade-off between catalytic activity and long-term stability represents a formidable challenge and has not been extensively addressed. This study reports that metastable and temperature-sensitive chemically exfoliated MoS2 (ce-MoS2 ) can be made into electrochemically stable (5000 cycles), and thermally robust (300 degrees C) while maintaining synthetic scalability and excellent catalytic activity through physical-transformation into 3D structurally deformed nanostructures. The dimensional transition enabled by a high throughput electrohydrodynamic process provides highly accessible, and electrochemically active surface area and facilitates efficient transport across various interfaces. Meanwhile, the hierarchically strained morphology is found to improve electronic coupling between active sites and current collecting substrates without the need for selective engineering the electronically heterogeneous interfaces. Specifically, the synergistic combination of high strain load stemmed from capillarity-induced-self-crumpling and sulfur (S) vacancies intrinsic to chemical exfoliation enables simultaneous modulation of active site density and intrinsic HER activity regardless of continuous operation or elevated temperature. These results provide new insights into how catalytic activity, electrochemical-, and thermal stability can be concurrently enhanced through the physical transformation that is reminiscent of nature, in which properties of biological materials emerge from evolved dimensional transitions. PMID- 29024073 TI - Developmental stage influences chromosome segregation patterns and arrangement in the extremely polyploid, giant bacterium Epulopiscium sp. type B. AB - Few studies have described chromosomal dynamics in bacterial cells with more than two complete chromosome copies or described changes with respect to development in polyploid cells. We examined the arrangement of chromosomal loci in the very large, highly polyploid, uncultivated intestinal symbiont Epulopiscium sp. type B using fluorescent in situ hybridization. We found that in new offspring, chromosome replication origins (oriCs) are arranged in a three-dimensional array throughout the cytoplasm. As development progresses, most oriCs become peripherally located. Siblings within a mother cell have similar numbers of oriCs. When chromosome orientation was assessed in situ by labeling two chromosomal regions, no specific pattern was detected. The Epulopiscium genome codes for many of the conserved positional guide proteins used for chromosome segregation in bacteria. Based on this study, we present a model that conserved chromosomal maintenance proteins, combined with entropic demixing, provide the forces necessary for distributing oriCs. Without the positional regulation afforded by radial confinement, chromosomes are more randomly oriented in Epulopiscium than in most small rod-shaped cells. Furthermore, we suggest that the random orientation of individual chromosomes in large polyploid cells would not hamper reproductive success as it would in smaller cells with more limited genomic resources. PMID- 29024074 TI - Comparison of subjective wellbeing in substance users and the parents or partners of substance users. AB - INTRODUCTION AND AIMS: There is growing interest in the impact of substance use on both the individual consumer's subjective wellbeing (SWB) and the reduced SWB of those closely connected to him or her. The study aimed to compare SWB among substance users ('consumers') and the parents or partners affected by another's substance use, and to evaluate the effect of counselling on changed SWB to 6 months. DESIGN AND METHODS: The study used longitudinal data from a not-for profit treatment service based in Perth, Australia. Subjective wellbeing was assessed with the Personal Wellbeing Index (PWI) at baseline and 6 months. Data were compared to national norms (mean 75.97) with one sample t tests. Change in PWI scores was assessed with generalised linear mixed models, controlling for age, gender, group (consumers versus parents or partners), psychological distress (Kessler-10) and social connectedness (Lubben). RESULTS: Of 220 participants, 136 (62%) were consumers and 84 (38%) were parents or partners. At 6 months 123 (56%) were re-interviewed. At baseline, both consumers (mean 53.7) and parents or partners (mean 66.1) had significantly lower PWI scores than national norms. At 6 months, only the substance users' PWI scores remained significantly lower (mean 67.8). Subjective wellbeing significantly increased with time (beta = 5.52; 95% confidence interval 3.15, 7.90), with no significant time by group interaction. DISCUSSION AND CONCLUSIONS: Both groups showed significant decrements in SWB compared with the general population but with improvements over the study period. However, the lack of a control group prevents definitive assertions on causality for improved SWB. PMID- 29024075 TI - Hollow Co3 O4 Nanosphere Embedded in Carbon Arrays for Stable and Flexible Solid State Zinc-Air Batteries. AB - Highly active and durable air cathodes to catalyze both the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are urgently required for rechargeable metal-air batteries. In this work, an efficient bifunctional oxygen catalyst comprising hollow Co3 O4 nanospheres embedded in nitrogen-doped carbon nanowall arrays on flexible carbon cloth (NC-Co3 O4 /CC) is reported. The hierarchical structure is facilely derived from a metal-organic framework precursor. A carbon onion coating constrains the Kirkendall effect to promote the conversion of the Co nanoparticles into irregular hollow oxide nanospheres with a fine scale nanograin structure, which enables promising catalytic properties toward both OER and ORR. The integrated NC-Co3 O4 /CC can be used as an additive free air cathode for flexible all-solid-state zinc-air batteries, which present high open circuit potential (1.44 V), high capacity (387.2 mAh g-1 , based on the total mass of Zn and catalysts), excellent cycling stability and mechanical flexibility, significantly outperforming Pt- and Ir-based zinc-air batteries. PMID- 29024076 TI - Imbedded Nanocrystals of CsPbBr3 in Cs4 PbBr6 : Kinetics, Enhanced Oscillator Strength, and Application in Light-Emitting Diodes. AB - Solution-grown films of CsPbBr3 nanocrystals imbedded in Cs4 PbBr6 are incorporated as the recombination layer in light-emitting diode (LED) structures. The kinetics at high carrier density of pure (extended) CsPbBr3 and the nanoinclusion composite are measured and analyzed, indicating second-order kinetics in extended and mainly first-order kinetics in the confined CsPbBr3 , respectively. Analysis of absorption strength of this all-perovskite, all inorganic imbedded nanocrystal composite relative to pure CsPbBr3 indicates enhanced oscillator strength consistent with earlier published attribution of the sub-nanosecond exciton radiative lifetime in nanoprecipitates of CsPbBr3 in melt grown CsBr host crystals and CsPbBr3 evaporated films. PMID- 29024077 TI - Tree-Inspired Design for High-Efficiency Water Extraction. AB - The solar steam process, akin to the natural water cycle, is considered to be an attractive approach to address water scarcity issues globally. However, water extraction from groundwater, for example, has not been demonstrated using these existing technologies. Additionally, there are major unaddressed challenges in extracting potable water from seawater including salt accumulation and long-term evaporation stability, which warrant further investigation. Herein, a high performance solar steam device composed entirely of natural wood is reported. The pristine, natural wood is cut along the transverse direction and the top surface is carbonized to create a unique bilayer structure. This tree-inspired design offers distinct advantages for water extraction, including rapid water transport and evaporation in the mesoporous wood, high light absorption (~99%) within the surface carbonized open wood channels, a low thermal conductivity to avoid thermal loss, and cost effectiveness. The device also exhibits long-term stability in seawater without salt accumulation as well as high performance for underground water extraction. The tree-inspired design offers an inexpensive and scalable solar energy harvesting and steam generation technology that can provide clean water globally, especially for rural or remote areas where water is not only scarce but also limited by water extraction materials and methods. PMID- 29024078 TI - Fruit intake reduces the onset of respiratory allergic symptoms in schoolchildren. AB - BACKGROUND: Previous studies have shown that dietary pattern is associated with allergy prevention. METHODS: We conducted a prospective cohort study on all primary schools in Omihachiman City, Shiga Prefecture, Japan. Questionnaires regarding allergic symptoms and diet were distributed to the parents of all 759 7 year-old schoolchildren for 4 consecutive years, from 2011 to 2014. Specific immunoglobulin E to inhalant allergens was measured at 10 years of age. Participants were then categorized as low, medium, or high intake during the study period for four food groups (fruits, vegetables, fish, and beans). Logistic regression analysis was performed to estimate odds ratios and 95% confidence intervals. RESULTS: A total of 520 children (68.5%) whose parents responded to the questionnaires all 4 years were included in the analysis. The prevalence of asthma, rhinitis, and any allergic symptoms at age 10 was significantly decreased with increases in fruit intake. In addition, the onset of any allergic symptoms during the study period was significantly decreased with increases in fruit intake (33.3%, 28.3%, and 14.3% in children with low, medium, and high fruit intake, respectively; P for trend =.01). The sensitization rate to ragweed at age 10 was significantly decreased with increases in fruit intake (P for trend =.046). No significant effect was observed for the other three food groups, except for the association between fish intake and new-onset asthma symptoms. CONCLUSIONS: These findings suggest that higher intake of fruit can help prevent respiratory allergic symptoms in schoolchildren. PMID- 29024079 TI - The preadolescent acne microbiome: A prospective, randomized, pilot study investigating characterization and effects of acne therapy. AB - BACKGROUND/OBJECTIVES: Acne, a common pediatric disease, tends to be more comedonal in preadolescents, whereas older individuals are more likely to have inflammatory lesions in addition to comedones. Thus the microbiome of preadolescents may be different. In this pilot study we aimed to characterize the preadolescent acne microbiome, compare the microbiome in preadolescents with and without acne, and investigate changes in the microbiome after topical treatment with benzoyl peroxide or a retinoid in a small cohort of preadolescents. METHODS: Participants were 7-10 years of age with (intervention group) or without (control group) acne and were recruited during routine outpatient dermatology visits. Baseline questionnaires, physical examination, and pore strip application were performed for all participants. Intervention group participants were randomized to receive topical therapy with benzoyl peroxide 5% gel or cream or tretinoin 0.025% cream. Participants with acne were followed up 8-10 weeks later and pore strip application was repeated. RESULTS: Preadolescents with acne were colonized with a greater diversity of cutaneous bacteria than controls and the most commonly identified bacterium was Streptococcus. The number of bacterial species and phylogenetic diversity decreased after treatment with benzoyl peroxide and tretinoin. CONCLUSION: The predominant bacteria in microbiome studies of adult acne is Propionibacterium, whereas in this pediatric population we saw a lot of Streptococcus bacteria. After treatment, the microbiomes of intervention group participants more closely resembled those of control group participants. PMID- 29024080 TI - Randomized comparison of balloon aortic valvuloplasty performed with or without rapid cardiac pacing: The pacing versus no pacing (PNP) study. AB - OBJECTIVES: To compare the effectiveness and safety of balloon aortic valvuloplasty (BAV) performed with or without rapid ventricular pacing (RP). BACKGROUND: BAV technique is poorly standardized. METHODS: One hundred consecutive patients were randomly assigned 1:1 between BAV performed with or without RP. Exclusion criteria were an immediate indication for surgical or transcatheter aortic valve replacement, presentation in cardiogenic shock or pulmonary edema refractory to medical stabilization. RESULTS: There were 51 patients in the BAV group performed with RP, 49 in the BAV group without RP (noRP). Procedural success (50% hemodynamic gradient reduction) was achieved in 37.3% and 55.1%, respectively (P = 0.16). Fewer people in the noRP group complained of poor tolerance to the procedure (16% vs 41%). The primary efficacy endpoint, a 50% reduction in the mean echocardiographic trans-aortic gradient, was met in 21/49 patients in the noRP group compared to 20/51 in the RP (42.9% vs 39.2%; P = 0.84). No significant difference between the groups was observed in the primary safety endpoint, a 30-day composite of death, myocardial infarction, stroke, acute aortic regurgitation, and BARC bleeding >=3 (8.2% noRP vs 13.7%; P = 0.53). The noRP group required fewer bailout temporary pacemakers (P = 0.048) and had a lower incidence of moderate/severe renal function worsening (4.1% vs 17.6%; P = 0.052). CONCLUSIONS: Rapid ventricular pacing did not influence BAV efficacy or safety and tolerance was slightly worse. PMID- 29024081 TI - The effect of Rosa (L. Rosa canina) on the incidence of urinary tract infection in the puerperium: A randomized placebo-controlled trial. AB - Urinary tract infection (UTI) is an infection that can occur in any area of the urinary tract which is characterized by a positive urine culture (U/C). The risk of UTI following cesarean section (CS) increases due to procedures such as catheterization. In vitro studies have demonstrated the effect of Rosa canina fruit in preventing Escherichia coli growth. This study was conducted to determine the effect of R. canina fruit in preventing the incidence of UTI in women following CS. This triple-blind randomized clinical trial was conducted in 2016 on 400 women following CS with negative U/C in Alzahra and Taleghani educational hospitals in the city of Tabriz-Iran. Participants were assigned into two groups of 200 women using block randomization. Each group received a twice daily dose of 500 mg capsules containing R. canina or placebo from the second day after CS for 20 days. Women were assessed by U/C on the 7th-10th and 20th days following CS. UTI was significantly lower in the intervention group compared with the control in the follow-ups conducted on the 7th-10th days (odds ratio = 0.22; confidence interval 95% [0.07, 0.67]; p = .006) and 20th day (odds ratio = 0.32; confidence interval 95% [0.14, 0.75]; p = .008). But the incidence of cystitis in the two groups was not statistically significant (p > .05). R. canina fruit capsules were able to reduce the incidence of UTI after CS. Thus, it is likely that administration of this medication can promote maternal health following CS. PMID- 29024082 TI - Paraneoplastic bullous pemphigoid associated with penile squamous cell carcinoma. PMID- 29024083 TI - Stimulated Transitions of Directed Nonequilibrium Self-Assemblies. AB - Near-equilibrium stimulus-responsive polymers have been used extensively to introduce morphological variations in dependence of adaptable conditions. Far less-well studied are triggered transformations at constant conditions. These require the involvement of metastable states, which are either able to approach the equilibrium state after deviation from metastability or can be frozen on returning from nonequilibrium to equilibrium. Such functional nonequilibrium macromolecular systems hold great promise for on-demand transformations, which result in substantial changes in their material properties, as seen for triggered gelations. Herein, a diblock copolymer system consisting of a hydrophilic block and a block that is responsive to both pressure and temperature, is introduced. This species demonstrates various micellar transformations upon leaving equilibrium/nonequilibrium states, which are triggered by a temperature deflection or a temporary application of hydrostatic pressure. PMID- 29024085 TI - Structure Determination, Conformational Flexibility, Internal Dynamics, and Chiral Analysis of Pulegone and Its Complex with Water. AB - In the current work we present a detailed analysis of the chiral molecule pulegone, which is a constituent of essential oils, using broadband rotational spectroscopy. Two conformers are observed under the cold conditions of a molecular jet. We report an accurate experimentally determined structure for the lowest energy conformer. For both conformers, a characteristic splitting pattern is observed in the spectrum, resulting from the internal rotation of the two non equivalent methyl groups situated in the isopropylidene side chain. The determined energy barriers are 1.961911(46) kJ mol-1 and 6.3617(12) kJ mol-1 for one conformer, and 1.96094(74) kJ mol-1 and 6.705(44) kJ mol-1 for the other one. Moreover, a cluster of the lowest energy conformer with one water molecule is reported. The water molecule locks one of the methyl groups by means of a hydrogen bond and some secondary interactions, so that we only observe internal rotation splittings from the other methyl group with an internal rotation barrier of 2.01013(38) kJ mol-1 . Additionally, the chirality-sensitive microwave three wave mixing technique is applied for the differentiation between the enantiomers, which can become of further use for the analysis of essential oils. PMID- 29024084 TI - Characterization of and lipopolysaccharide binding to the E. coli LptC protein dimer. AB - Lipopolysaccharide (LPS, endotoxin) is the major component of the outer leaflet of the outer membrane of Gram-negative bacteria such as Escherichia coli and Salmonella typhimurium. LPS is a large lipid containing several acyl chains as its hydrophobic base and numerous sugars as its hydrophilic core and O-antigen domains, and is an essential element of the organisms' natural defenses in adverse environmental conditions. LptC is one of seven members of the lipopolysaccharide transport (Lpt) protein family that functions to transport LPS from the inner membrane (IM) to the outer leaflet of the outer membrane of the bacterium. LptC is anchored to the IM and associated with the IM LptFGB2 complex. It is hypothesized that LPS binds to LptC at the IM, transfers to LptA to cross the periplasm, and is inserted by LptDE into the outer leaflet of the outer membrane. The studies described here comprehensively characterize and quantitate the binding of LPS to LptC. Site-directed spin labeling electron paramagnetic resonance spectroscopy was utilized to characterize the LptC dimer in solution and monitor spin label mobility changes at 10 sites across the protein upon addition of exogenous LPS. The results indicate that soluble LptC forms concentration-independent N-terminal dimers in solution, LptA binding does not change the conformation of the LptC dimer nor appreciably disrupt the LptC dimer in vitro, and LPS binding affects the entire LptC protein, with the center and C terminal regions showing a greater affinity for LPS than the N-terminal domain, which has similar dissociation constants to LptA. PMID- 29024086 TI - Combined endogenous MR biomarkers to predict basal tumor oxygenation and response to hyperoxic challenge. AB - Hypoxia is a common feature of solid tumors, which translates into increased angiogenesis, malignant phenotype cell selection, change in gene expression and greater resistance to radiotherapy and chemotherapy. Therefore, there is a need for markers of hypoxia to stratify patients, in order to personalize treatment to improve therapeutic outcome. However, no modality has yet been validated for the screening of hypoxia in routine clinical practice. Magnetic resonance imaging (MRI) R1 and R2 * relaxation parameters are sensitive to tissue oxygenation: R1 is sensitive to dissolved oxygen and R2 * is sensitive to intravascular deoxyhemoglobin content. Two rat tumor models with distinct levels of hypoxia, 9L glioma and rhabdomyosarcoma, were imaged for R1 and R2 * under air and carbogen (95% O2 and 5% CO2 ) breathing conditions. It was observed that the basal tumor oxygenation level had an impact on the amplitude of response to carbogen in the vascular compartment (R2 *), but not in the tissue compartment (R1 ). In addition, the change in tissue oxygenation estimated by DeltaR1 correlated with the change in vascular oxygenation estimated by DeltaR2 *, which is consistent with an increase in oxygen supply generating an elevated tumor pO2 . At the intra tumoral level, we identified four types of voxel to which a hypoxic feature was attributed (mild hypoxia, severe hypoxia, normoxia and vascular steal), depending on the carbogen-induced change in R1 and R2 * values for each voxel. The results showed that 9L-gliomas present more normoxic fractions, whereas rhabdomyosarcomas present more hypoxic fractions, which is in accordance with a previous study using 18 F-fluoroazomycin arabinoside (18 F-FAZA) and electron paramagnetic resonance (EPR) oximetry. The response of the combined endogenous MRI contrasts to carbogen challenge could be a useful tool to predict different tumor hypoxic fractions. PMID- 29024087 TI - Chemical Intercalation of Topological Insulator Grid Nanostructures for High Performance Transparent Electrodes. AB - 2D layered nanomaterials with strong covalent bonding within layers and weak van der Waals' interactions between layers have attracted tremendous interest in recent years. Layered Bi2 Se3 is a representative topological insulator material in this family, which holds promise for exploration of the fundamental physics and practical applications such as transparent electrode. Here, a simultaneous enhancement of optical transmittancy and electrical conductivity in Bi2 Se3 grid electrodes by copper-atom intercalation is presented. These Cu-intercalated 2D Bi2 Se3 electrodes exhibit high uniformity over large area and excellent stabilities to environmental perturbations, such as UV light, thermal fluctuation, and mechanical distortion. Remarkably, by intercalating a high density of copper atoms, the electrical and optical performance of Bi2 Se3 grid electrodes is greatly improved from 900 Omega sq-1 , 68% to 300 Omega sq-1 , 82% in the visible range; with better performance of 300 Omega sq-1 , 91% achieved in the near-infrared region. These unique properties of Cu-intercalated topological insulator grid nanostructures may boost their potential applications in high performance optoelectronics, especially for infrared optoelectronic devices. PMID- 29024088 TI - Parental-genome dosage effects on the transcriptome of F1 hybrid triploid embryos of Arabidopsis thaliana. AB - Genomic imprinting in the seed endosperm could be due to unequal parental-genome contribution effects in triploid endosperm tissue that trigger parent-of-origin specific activation and/or silencing of loci prone to genomic imprinting. To determine whether genomic imprinting is triggered by unequal parental-genome contribution effects, we generated a whole-genome transcriptome dataset of F1 hybrid triploid embryos (as mimics of F1 hybrid triploid endosperm). For the vast majority of genes, the parental contributions to their expression levels in the F1 triploid hybrid embryos follow a biallelic and linear expression pattern. While allele-specific expression (ASE) bias was detected, such effects were predominantly parent-of-origin independent. We demonstrate that genomic imprinting is largely absent from F1 triploid embryos, strongly suggesting that neither triploidy nor unequal parental-genome contribution are key triggers of genomic imprinting in plants. However, extensive parental-genome dosage effects on gene expression were observed between the reciprocal F1 hybrid embryos, particularly for genes involved in defence response and nutrient reservoir activity, potentially leading to the seed size differences between reciprocal triploids. We further determined that unequal parental-genome contribution in F1 triploids can lead to overexpression effects that are parent-of-origin dependent, and which are not observed in diploid or tetraploid embryos in which the parental genome dosage is balanced. Overall, our study demonstrates that neither triploidy nor unequal parental-genome contribution is sufficient to trigger imprinting in plant tissues, suggesting that genomic imprinting is an intrinsic and unique feature of the triploid seed endosperm. PMID- 29024089 TI - Macronutrient intake of dogs, self-selecting diets varying in composition offered ad libitum. AB - The diet of the domestic dog has changed significantly from that of its wolf ancestor, with to date only two studies having examined macronutrient self selection in dogs. Whilst the first focused solely on protein intake, determining an intake of 30% metabolisable energy (ME), the second investigated dietary protein, fat and carbohydrate (PFC), indicating an intake ratio of 30:63:7% by energy. This study's aim was to further elucidate macronutrient intake by providing greater macronutrient range, energy content, and to investigate over a longer duration than previous studies. Fifteen adult dogs were given access to three wet diets providing 500% of daily ME, twice daily over 10 days. The diets were nutritionally complete and formulated using the same four ingredients in different proportions to supply high levels of protein (58% ME), fat (86% ME) or carbohydrate (54% ME). Overall fat and carbohydrate consumption significantly declined from 6,382 to 917 kcals per day (p < 0.001) and 553 to 214 kcals day-1 (p < .01) respectively. Protein intake, however, remained constant over the study and ranged from 4,786 to 4,156 kcals day-1 . Such results impacted on percentage total energy intake, with fat decreasing from 68% to 52% (p < .001) and protein increasing from 29% to 44% (p < .01). Our findings suggest that dogs still possess a "feast or famine" mentality, wherein energy dense fat is prioritised over protein initially. With continued feeding over 10 days, a transition to a more balanced energy contribution from both macronutrients is evident. The study also shows that given the option, dogs do not select carbohydrate to be a significant portion of the diet. The health implications of such dietary selection are of interest. PMID- 29024090 TI - Reactivity of 3-Oxo-beta-lactams with Respect to Primary Amines-An Experimental and Computational Approach. AB - The reactivity of 3-oxo-beta-lactams with respect to primary amines was investigated in depth. Depending on the specific azetidin-2-one C4 substituent, this reaction was shown to selectively produce 3-imino-beta-lactams (through dehydration), alpha-aminoamides (through CO elimination), or ethanediamides (through an unprecedented C3-C4 ring opening). In addition to the experimental results, the mechanisms and factors governing these peculiar transformations were also examined and elucidated by means of DFT calculations. PMID- 29024091 TI - Protective effect of cinnamic acid in endotoxin-poisoned mice. AB - In this work, we aimed to evaluate the protective effect of cinnamic acid (CD) on lipopolysaccharide (LPS; Escherichia coli 055:B5)-induced endotoxin-poisoned mice and clarify the underlying mechanisms. The mice were administrated CD 5 d before 15 mg/kg LPS challenge. 12 hr later, thymus was separated for determination of thymus indexes. Lung and spleen tissues were collected for histologic examination and the wet/dry weight ratio of lung was calculated, and serum was acquired for tumor necrosis factor-alpha (TNF-alpha), interleukin (IL)-18, and IL-1beta measurement. Moreover, the expression of NOD-like receptor (NLR) family, pyrin domain-containing 3 (NLRP3) inflammasome was determined in lung. CD increased the thymus indexes and decreased lung wet/dry weight ratio. In addition, CD improved the lung and spleen histopathological changes induced by LPS and decreased the number of neutrophils in lung tissues. CD also inhibited the pro-inflammatory cytokines (TNF-alpha, IL-18, and IL-1beta) production in serum. Furthermore, CD suppressed the LPS-induced NLRP3, Caspase-1, and IL-1beta mRNA expression in lung, as well as the expression of NLRP3 and Caspase-1 (p20) protein. CD may have protective effects in endotoxin-poisoned mice via inhibiting the activation of NLRP3 inflammasome, and can be considered as a potential therapeutic candidate for diseases involved in endotoxin poisoning such as sepsis. PMID- 29024092 TI - Pharmaceutical opioid use and harm in Australia: The need for proactive and preventative responses. AB - There are parallels between the North American experience of escalating pharmaceutical opioid utilisation and harm and the trends being observed in Australia. In Australia, opioid utilisation has increased dramatically over the past two decades. There have been significant shifts away from the predominant prescribing of 'weak' and short-acting opioids, to 'strong' and long-acting opioids, for an increasing range of chronic pain indications. In concordance with escalating use, Australia is experiencing increases in opioid-related hospital admissions and overdose, as well as opioid dependence and treatment seeking. Despite increasing concern regarding pharmaceutical opioid use and harms in Australia, responses have been limited. There have been no recent changes in regulatory systems for prescription-only pharmaceutical opioids, opioid prescribing guidelines, limits on doctors' prescribing, monitoring of patient or doctor access to opioids, or in access to medicines via public subsidy. Potentially abuse-deterrent opioid formulations have entered the Australian market, with studies suggesting that these formulations are less likely to be tampered with by people who inject drugs; but to date, there have been limited impacts on opioid utilisation and harm. Additional strategies may include enhancing access to effective approaches to pain management and opioid dependence, and scaling-up naloxone provision. There is a unique opportunity for a proactive and preventative response to pharmaceutical opioids in Australia, to avoid experiencing the scale of problems seen elsewhere. PMID- 29024093 TI - Remarkably High Stability of Late Actinide Dioxide Cations: Extending Chemistry to Pentavalent Berkelium and Californium. AB - Actinyl chemistry is extended beyond Cm to BkO2+ and CfO2+ through transfer of an O atom from NO2 to BkO+ or CfO+ , establishing a surprisingly high lower limit of 73 kcal mol-1 for the dissociation energies, D[O-(BkO+ )] and D[O-(CfO+ )]. CCSD(T) computations are in accord with the observed reactions, and characterize the newly observed dioxide ions as linear pentavalent actinyls; these being the first Bk and Cf species with oxidation states above IV. Computations of actinide dioxide cations AnO2+ for An=Pa to Lr reveal an unexpected minimum for D[O-(CmO+ )]. For CmO2+ , and AnO2+ beyond EsO2+ , the most stable structure has side-on bonded eta2 -(O2 ), as AnIII peroxides for An=Cm and Lr, and as AnII superoxides for An=Fm, Md, and No. It is predicted that the most stable structure of EsO2+ is linear [O=EsV =O]+ , einsteinyl, and that FmO2+ and MdO2+ , like CmO2+ , also have actinyl(V) structures as local energy minima. The results expand actinide oxidation state chemistry, the realm of the distinctive actinyl moiety, and the non-periodic character towards the end of the periodic table. PMID- 29024095 TI - Trivalent Lewis Acidic Cations Govern the Electronic Properties and Stability of Heterobimetallic Complexes of Nickel. AB - Assembly of heterobimetallic complexes is synthetically challenging due to the propensity of ditopic ligands to bind metals unselectively. Here, we employ a novel divergent approach for selective preparation of a variety of bimetallic complexes within a ditopic macrocyclic ligand platform. In our approach, nickel is readily coordinated to a Schiff base cavity, and then a range of redox inactive cations (M=Na+ , Ca2+ , Nd3+ , and Y3+ ) are installed in a pendant crown-ether-like site. This modular strategy allows access to complexes with the highly Lewis acidic trivalent cations Nd3+ and Y3+ , a class of compounds that were previously inaccessible. Spectroscopic and electrochemical studies reveal wide variations in properties that are governed most strongly by the trivalent cations. Exposure to dimethylformamide drives loss of Nd3+ and Y3+ from the pendant crown-ether site, suggesting solvent effects must be carefully considered in future applications involving use of highly Lewis acidic metals. PMID- 29024096 TI - State-of-the-art immunogenicity evaluation in phase 3 confirmatory study (EGALITY) with etanercept biosimilar GP2015. PMID- 29024097 TI - Synthesis of 1,1'- and 2,2'-Bicarbazole Alkaloids by Iron(III)-Catalyzed Oxidative Coupling of 2- and 1-Hydroxycarbazoles. AB - We describe the synthesis of 1,1'- and 2,2'-bicarbazoles by oxidative homocoupling of 2- and 1-hydroxycarbazoles. The oxidative coupling using catalytic amounts of F16 PcFe can be applied to both groups of substrates. Although F16 PcFe generally provides the best yields for the synthesis of 1,1' bicarbazoles, di-tert-butyl peroxide affords better results for the 2,2' bicarbazoles. In our study, we have achieved the first syntheses of the biscarbalexines A-C, bisglybomine B, 2,2'-dihydroxy-7,7'-dimethoxy-3,3'-dimethyl 1,1'-bicarbazole, bispyrayafoline C, and bisisomahanine. The iron-catalyzed coupling of koenigine led to an improved synthesis of 8,8''-biskoenigine and afforded an unprecedented decacylic product. Oxidative coupling of 1 hydroxycarbazoles led to bisclausenol, and to the first total syntheses of bismurrayafoline B and D. PMID- 29024099 TI - Intrathyroidal carotid artery and nonrecurring right recurrent laryngeal nerve: A case report. AB - BACKGROUND: When performing thyroidectomy, knowledge of normal anatomy and variants is vital to avoid injuring nearby structures. Typically, the bilateral carotids course posterolateral to the thyroid gland. We describe a rare variant of an intrathyroidal carotid artery, not previously described in the literature. METHODS: A 23-year-old woman with a strong family history of thyroid cancer presented with a left thyroid nodule, and a fine-needle aspiration biopsy revealing papillary thyroid carcinoma. She underwent total thyroidectomy. RESULTS: Intraoperatively, the carotid was found coursing centrally through the right lobe parenchyma, associated with an ipsilateral nonrecurrent recurrent laryngeal nerve (NRLN) entering the cricothyroid joint superolaterally. CONCLUSION: This is, to our knowledge, the first report of such an anatomic variant in the medical literature. Aberrant carotid artery anatomy may potentially cause life-threatening surgical complications and should be considered preoperatively. Furthermore, recognition of concurrent recurrent laryngeal nerve (RLN) anomalies with vascular variations allows identification of nonrecurrent nerves. PMID- 29024098 TI - Hemin-Graphene Derivatives with Increased Peroxidase Activities Restrain Protein Tyrosine Nitration. AB - Protein tyrosine nitration is implicated in the occurrence and progression of pathological conditions involving free radical reactions. It is well recognized that hemin can catalyze protein tyrosine nitration in the presence of nitrite and hydrogen peroxide. Generally, the catalytic efficiency is positively correlated to its peroxidase activity. In this study, however, it is found that the efficiency of hemin in catalyzing protein tyrosine nitration is largely suppressed after functionalization with graphene derivatives, even though its peroxidase-like activity is more than quadrupled. Further studies show that the oxidation of tyrosine is still observed for these composites; dityrosine formation, however, is greatly inhibited. Furthermore, these composites also exhibit strong effects on the oxidation of nitrite into nitrate. Therefore, we propose a mechanism in which hemin-graphene derivatives facilitate the oxidation of tyrosine and nitrite to produce tyrosyl radicals and nitrogen dioxide radicals in the presence of hydrogen peroxide, but graphene interlayers serve as barriers that hinder radical-radical coupling reactions; consequently, protein tyrosine nitration is restrained. This property of hemin-graphene derivatives, by which they catalyze substrate oxidation but suppress radical-radical coupling reactions, shows their great potential in selective oxidation procedures for byproduct removal. PMID- 29024100 TI - An All-Integrated Anode via Interlinked Chemical Bonding between Double-Shelled Yolk-Structured Silicon and Binder for Lithium-Ion Batteries. AB - The concept of an all-integrated design with multifunctionalization is widely employed in optoelectronic devices, sensors, resonator systems, and microfluidic devices, resulting in benefits for many ongoing research projects. Here, maintaining structural/electrode stability against large volume change by means of an all-integrated design is realized for silicon anodes. An all-integrated silicon anode is achieved via multicomponent interlinking among carbon@void@silica@silicon (CVSS) nanospheres and cross-linked carboxymethyl cellulose and citric acid polymer binder (c-CMC-CA). Due to the additional protection from the silica layer, CVSS is superior to the carbon@void@silicon (CVS) electrode in terms of long-term cyclability. The as-prepared all-integrated CVSS electrode exhibits high mechanical strength, which can be ascribed to the high adhesivity and ductility of c-CMC-CA binder and the strong binding energy between CVSS and c-CMC-CA, as calculated based on density functional theory (DFT). This electrode exhibits a high reversible capacity of 1640 mA h g-1 after 100 cycles at a current density of 1 A g-1 , high rate performance, and long-term cycling stability with 84.6% capacity retention after 1000 cycles at 5 A g-1 . PMID- 29024101 TI - Photocatalyzing CO2 to CO for Enhanced Cancer Therapy. AB - Continuous exposure to carbon monoxide (CO) can sensitize cancer cells to chemotherapy while protect normal cells from apoptosis. The Janus face of CO thus provides an ideal strategy for cancer therapy. Here, a photocatalytic nanomaterial (HisAgCCN) is introduced to transform endogenous CO2 to CO for improving cancer therapy in vivo. The CO production rate of HisAgCCN reaches to 65 umol h-1 gmat-1 , which can significantly increase the cytotoxicity of anticancer drug (doxorubicin, DOX) by 70%. Interestingly, this study finds that HisAgCCN can enhance mitochondria biogenesis and aggravate oxidative stress in cancer cells, whereas protect normal cells from chemotherapy-induced apoptosis as well. Proteomics and metabolomics studies reveal that HisAgCCN can enhance mitochondria biogenesis and aggravate oxidative stress in cancer cells specifically. In vivo studies indicate that HisAgCCN/DOX combination therapy presents a synergetic tumor inhibition, which might provide a new direction for clinical cancer therapy. PMID- 29024102 TI - Asian Organization for Crohn's and Colitis and Asia Pacific Association of Gastroenterology consensus on tuberculosis infection in patients with inflammatory bowel disease receiving anti-tumor necrosis factor treatment. Part 2: Management. AB - Because anti-tumor necrosis factor (anti-TNF) therapy has become increasingly popular in many Asian countries, the risk of developing active tuberculosis (TB) among anti-TNF users may raise serious health problems in this region. Thus, the Asian Organization for Crohn's and Colitis and the Asia Pacific Association of Gastroenterology have developed a set of consensus statements about risk assessment, detection and prevention of latent TB infection, and management of active TB infection in patients with inflammatory bowel disease (IBD) receiving anti-TNF treatment. Twenty-three consensus statements were initially drafted and then discussed by the committee members. The quality of evidence and the strength of recommendations were assessed by using the Grading of Recommendations Assessment, Development, and Evaluation methodology. Web-based consensus voting was performed by 211 IBD specialists from nine Asian countries concerning each statement. A consensus statement was accepted if at least 75% of the participants agreed. Part 2 of the statements comprised three parts: (3) management of latent TB in preparation for anti-TNF therapy, (4) monitoring during anti-TNF therapy, and (5) management of an active TB infection after anti-TNF therapy. These consensus statements will help clinicians optimize patient outcomes by reducing the morbidity and mortality related to TB infections in patients with IBD receiving anti-TNF treatment. PMID- 29024104 TI - The healthy donor effect impacts self-reported physical and mental health - results from the Danish Blood Donor Study (DBDS). AB - AIMS: This study aimed at quantifying the healthy donor effect by comparing self perceived mental and physical health between blood donors and non-donors. BACKGROUND: In theory, the selection process known as the healthy donor effect should result in better self-perceived, health-related quality of life in donors than in non-donors. METHODS: The Short Form-12 data from the Danish Twin Registry (DTR) was compared with the data from the Danish Blood Donor Study (DBDS). Data on age, sex and smoking status were included in the analyses. The multivariable linear regression analysis was stratified by sex and age group intervals. Outcome variables were the mental component score (MCS) and the physical component score (PCS). RESULTS: A total of 28 982 and 36 913 participants from the DTR and the DBDS, respectively, were included in this study. Younger donors had higher MCS than non-donors, whereas MCS was only marginally high in older donors compared with non-donors. In contrast, PCS was almost similar for both young donors and non-donors. With the increase in age, non-donors had lower PCS than donors. CONCLUSIONS: Two selection patterns were revealed. Among young individuals, better self-perceived mental health was associated with a blood donor. With the increase in age, better self-perceived physical health was associated with blood donation. PMID- 29024105 TI - Highly Active and Readily Accessible Proline-Based Dizinc Catalyst for CO2 /Epoxide Copolymerization. AB - In the pursuit of CO2 -based materials, the development of efficient catalysts for the alternating copolymerization of CO2 and epoxides to give polycarbonates is receiving particular attention. Desirable attributes for such catalysts are high copolymerization activity at low CO2 pressure, as well as chemo- and stereocontrol over the formed polymer. Here, we report a novel chiral zinc catalyst that can be isolated in 97 % yield from commercial sources, and that produces polycarbonates selectively from neat cyclohexene oxide under 1 bar of CO2 pressure at temperatures above 50 degrees C. At 80 degrees C reaction temperature, TONs of 1684 and initial TOFs up to 149 h-1 were measured, producing an isotactic-enriched polycarbonate with a probability Pm of 65 % for the formation of a meso diad. Insight into the dinuclear nature of the active species and the copolymerization progress has been gained from structural and spectroscopic studies. PMID- 29024103 TI - Functional interleukin-6 receptor-alpha is located in tanycytes at the base of the third ventricle. AB - Interleukin (IL)-6- /- mice develop mature onset obesity, whereas i.c.v. injection of IL-6 decreases obesity in rodents. Moreover, levels of IL-6 in cerebrospinal fluid (CSF) were reported to be inversely correlated with obesity in humans. Tanycytes lining the base of the third ventricle (3V) in the hypothalamus have recently been reported to be of importance for metabolism. In the present study, we investigated whether tanycytes could respond to IL-6 in the CSF. With immunohistochemistry using a well characterised antibody directed against the ligand binding receptor for IL-6, IL-6 receptor alpha (IL-6Ralpha), it was found that tanycytes, identified by the two markers, vimentin and dopamine and cAMP-regulated phosphoprotein of 32 kDa, contained IL-6Ralpha. There were fewer IL-6Ralpha on another type of ventricle-lining cells, ependymal cells, as identified by the marker glucose transporter-1. To demonstrate that the immunoreactive IL-6Ralpha were responsive to IL-6, we injected IL-6 i.c.v. This treatment increased immunoreactive phosphorylated signal transducer and activator of transcription-3 (pSTAT3) in tanycytes after 5 minutes and in cells in the medial part of the arcuate nucleus after 5 and 15 minutes. Intracerebroventricular injection of leptin exerted similar effects. As expected, i.p. injection of leptin also induced pSTAT3 staining in the hypothalamus, whereas i.p. IL-6 injection had little effect on this parameter. Intracerebroventricular or i.p. injection of vehicle only had no effect on pSTAT3 immunoreactivity. In summary, there are functional IL-6Ralpha on tanycytes at the bottom of the 3V, in agreement with the possibility that ventricular administration of IL-6 decreases obesity in mice via an effect on this cell type. PMID- 29024106 TI - Nutritional evaluation of the legume Macrotyloma axillare using in vitro and in vivo bioassays in sheep. AB - This study consisted of two experiments with the following objectives: to evaluate the effects of tannins from the tropical legume macrotiloma (Macrotyloma axillare) on total gas and methane (CH4 ) production, as well as on ruminal fermentation parameters by performing an in vitro bioassay, with samples incubated with and without polyethylene glycol (PEG) in a semi-automatic system; and secondly in a 17 day in vivo experiment, to determine apparent total tract digestibility (ATTD) of dietary nutrients and ruminal fermentation parameters of 12 intact 8- to 9-month-old Santa Ines (averaging 24.95 +/- 1.8 kg body weight) ewes fed tropical grass hay supplemented with macrotiloma hay. The ewes were divided into two treatment groups depending on their diet: chopped aruana grass hay (Panicum maximum cv. Aruana) (control-CON); and aruana grass hay supplemented with chopped macrotiloma hay (macrotiloma-MAC). The animals were kept for 5 consecutive days in metabolic cages for the ATTD assay, and at the end of this period, samples of rumen fluid were collected from each ewe to determine ammoniacal nitrogen (NH3 -N) and short-chain fatty acid (SCFA) production, and protozoa count. For the in vitro assay, a decrease in total gas and CH4 production was observed for samples incubated without PEG (p < .05). No differences were observed for the other parameters evaluated (p > .05). In the in vivo experiment, increased intake and ATTD of crude protein were observed for the animals fed MAC when compared to CON (p < .05). For rumen fermentation parameters, increased NH3 -N, total SCFA and isobutyrate concentrations, as well as reduced protozoa count were observed for MAC when compared to CON (p < .05). The results observed here indicated the potential of macrotiloma for use as a ruminant feed, and antimethanogenic potential of this plant was noted. PMID- 29024107 TI - Multispeed genome diploidization and diversification after an ancient allopolyploidization. AB - Hybridization and genome doubling (allopolyploidy) have led to evolutionary novelties as well as to the origin of new clades and species. Despite the importance of allopolyploidization, the dynamics of postpolyploid diploidization (PPD) at the genome level has been only sparsely studied. The Microlepidieae (MICR) is a crucifer tribe of 17 genera and c. 56 species endemic to Australia and New Zealand. Our phylogenetic and cytogenomic analyses revealed that MICR originated via an intertribal hybridization between ancestors of Crucihimalayeae (n = 8; maternal genome) and Smelowskieae (n = 7; paternal genome), both native to the Northern Hemisphere. The reconstructed ancestral allopolyploid genome (n = 15) originated probably in northeastern Asia or western North America during the Late Miocene (c. 10.6-7 million years ago) and reached the Australian mainland via long-distance dispersal. In Australia, the allotetraploid genome diverged into at least three main subclades exhibiting different levels of PPD and diversity: 1.25-fold descending dysploidy (DD) of n = 15 -> n = 12 (autopolyploidy -> 24) in perennial Arabidella (3 species), 1.5-fold DD of n = 15 -> n = 10 in the perennial Pachycladon (11 spp.) and 2.1-3.75-fold DD of n = 15 > n = 7-4 in the largely annual crown-group genera (42 spp. in 15 genera). These results are among the first to demonstrate multispeed genome evolution in taxa descending from a common allopolyploid ancestor. It is suggested that clade specific PPD can operate at different rates and efficacies and can be tentatively linked to life histories and the extent of taxonomic diversity. PMID- 29024108 TI - Changes in hepatic glucose and lipid metabolism-related parameters in domestic pigeon (Columba livia) during incubation and chick rearing. AB - This study aimed to evaluate the hepatic glucose and lipid metabolism-related parameters of adult male and female White King pigeons (Columba livia) during incubation and chick rearing. At day 4 (I4), 10 (I10) and 17 (I17) of incubation and day 1 (R1), 7 (R7), 15 (R15) and 25 (R25) of chick rearing, livers were sampled from six pigeons for each sex. Glycogen and fat contents, activities of glycolytic enzymes (hexokinase, HK; 6-phosphofructokinase, 6-PFK), and genes expressions of key enzymes involved in glycolysis (pyruvate kinase, PK; glucokinase, GK), gluconeogenesis (phosphoenolpyruvate carboxykinase cytosolic, PCK1; fructose-1,6-bisphosphatase, FBP1; glucose-6-phosphatase, G6Pase), fatty acid synthesis (fatty acid synthase, FAS; acetyl-CoA carboxylase, ACC) and fatty acid beta-oxidation (carnitine palmitoyltransferase 1, CPT1; acyl-CoA 1, ACO) were measured. In male and female pigeon livers, glycogen content and HK activity dramatically increased after I17 and after R1, respectively; expressions of FBP1 and G6Pase genes were maximized at R15; activity of 6-PFK and expressions of PK and CPT1 genes were highest at R7; fat content and expressions of FAS and ACC genes steeply increased from I10 to R1. In females, hepatic expressions of GK and PCK1 genes were greatest at R7 and I17, respectively; however, in males, both of them were maximized at R15. Hepatic expression of ACO gene was significantly enhanced at R1 compared to I17 and R7 in males, whereas it was notably up regulated at I17 and R7 in females. Furthermore, expressions of PCK1, GK, FAS and ACC genes were in significant relation to fat content in the livers of female pigeons, while fat content in male pigeons was highly correlated with expression of PCK1, ACC, CPT1 and ACO genes. In conclusion, regulations of glucose and lipid metabolic processes were enhanced in parent pigeon livers from terminal phases of incubation to mid phase of chick rearing with sexual effects. PMID- 29024109 TI - Long-term use of proton pump inhibitors, dose-response relationship and associated risk of ischemic stroke and myocardial infarction. AB - BACKGROUND: Use of proton pump inhibitors (PPIs) has been associated with cardiovascular disease amongst patients not on antiplatelet therapy. The associations of PPI use, duration and dose, with risk of first-time ischemic stroke and myocardial infarction (MI) are poorly understood. METHODS: All Danish individuals with no prior history of MI or stroke, who had an elective upper gastrointestinal endoscopy performed between 1997 and 2012, were identified from nationwide registries. We used multiple Poisson regression to test associations with current PPI use and its dose and used multiple cause-specific Cox regression and g-formula methods to analyze long-term use. RESULTS: Amongst 214 998 individuals, during a median follow-up of 5.8 years, there were 7916 ischemic strokes and 5608 MIs. Current PPI exposure was associated with significantly higher rates of both ischemic stroke (Hazard ratio (HR) 1.13; 95% confidence interval (CI) 1.08-1.19) and MI (HR 1.31, CI 1.23-1.39) after adjusting for age, sex, comorbidities and concomitant medication. High-dose PPI was associated with increased rates of ischemic stroke (HR 1.31, CI 1.21-1.42) and MI (HR 1.43, CI 1.30-1.57). Histamine H2 receptor antagonists (H2RAs) use was not significantly associated with ischemic stroke (HR 1.02, CI 0.84-1.24) or MI (HR 1.15, CI 0.92 1.43). Long-term users of PPIs, compared with nonusers, had a 29% (CI 5%-59%) greater absolute risk of ischemic stroke and a 36% (CI 7%-73%) greater risk of MI within a 6-month period. CONCLUSION: Use of PPIs was associated with increased risks of first-time ischemic stroke and MI, particularly amongst long-term users and at high doses. PMID- 29024110 TI - Therapeutic-Gas-Responsive Hydrogel. AB - Nitric oxide (NO) is a crucial signaling molecule with various functions in physiological systems. Due to its potent biological effect, the preparation of responsive biomaterials upon NO having temporally transient properties is a challenging task. This study represents the first therapeutic-gas (i.e., NO) responsive hydrogel by incorporating a NO-cleavable crosslinker. The hydrogel is rapidly swollen in response to NO, and not to other gases. Furthermore, the NO responsive gel is converted to enzyme-responsive gels by cascade reactions from an enzyme to NO production for which the NO precursor is a substrate of the enzyme. The application of the hydrogel as a NO-responsive drug-delivery system is proved here by revealing effective protein drug release by NO infusion, and the hydrogel is also shown to be swollen by the NO secreted from the cultured cells. The NO-responsive hydrogel may prove useful in many applications, for example drug-delivery vehicles, inflammation modulators, and as a tissue scaffold. PMID- 29024111 TI - Comment on: "Human symptom responses to bioeffluents, short-chain carbonyl/acids and long-chain carbonyls in a simulated aircraft cabin environment" by Weisel et al., Indoor Air (2017). PMID- 29024112 TI - A modeling enterprise for chemistry of indoor environments (CIE). PMID- 29024113 TI - Stress-related cortisol responsivity modulates prospective memory. AB - It is known that there is inter-individual variation in behavioural and physiological stress reactions to the same stressor. The present study aimed to examine the impact of cortisol responsivity on performance in a complex real life like prospective memory (PM) paradigm by a re-analysis of data published previously, with a focus on the taxonomy of cognitive dimensions of PM. Twenty one male subjects were stressed with the Socially Evaluated Cold Pressor Test (SECPT) before the planning of intentions. Another group of 20 males underwent a control procedure. Salivary cortisol was measured to assess the intensity of the biological stress response. Additionally, participants rated the subjective experience of stress on a 5-point rating scale. Stressed participants were post hoc differentiated in high (n = 11) and low cortisol responders (n = 10). Cortisol niveau differed significantly between the two groups, whereas subjective stress ratings did not. PM performance of low cortisol responders was stable across time and the PM performance of controls declined. High cortisol responders showed a nominally weaker PM retrieval across the early trails and significantly improved only on the last trial. The data demonstrate for the first time that participants with a low cortisol responsivity may benefit from stress exposure before the planning phase of PM. PM performance of high cortisol responders shows a more inconsistent pattern, which may be interpreted in the sense of a recency effect in PM retrieval. Alternatively, high cortisol responses may have a deteriorating effect on PM retrieval, which disappeared on the last trials of the task as a result of the decrease of cortisol levels across time. Importantly, the data also demonstrate that the intensity of cortisol responses does not necessarily correspond to the intensity of the mental experience of stress. PMID- 29024114 TI - Iron deficiency among blood donors: experience from the Danish Blood Donor Study and from the Copenhagen ferritin monitoring scheme. AB - Blood components collected from blood donors are an invaluable part of modern-day medicine. A healthy blood donor population is therefore of paramount importance. The results from the Danish Blood Donor Study (DBDS) indicate that gender, number of previous donations, time since last donation and menopausal status are the strongest predictors of iron deficiency. Only little information on the health effects of iron deficiency in blood donors exits. Possibly, after a standard full blood donation, a temporarily reduced physical performance for women is observed. However, iron deficiency among blood donors is not reflected in a reduced self perceived mental and physical health. In general, the high proportion of iron deficient donors can be alleviated either by extending the inter-donation intervals or by guided iron supplementation. The experience from Copenhagen, the Capital Region of Denmark, is that routine ferritin measurements and iron supplementation are feasible and effective ways of reducing the proportion of donors with low haemoglobin levels. PMID- 29024115 TI - Copper Photosensitizers Containing P^N Ligands and Their Influence on Photoactivity and Stability. AB - Driven by the intention to improve classic heteroleptic copper photosensitizers two novel Cu(I) complexes applying a hetero-bidentate P^N ligand were prepared. A combined photophysical, electrochemical, and theoretical study gives insights into structure-activity relationships and revealed an increased absorptivity. Both complexes were tested for the light-driven production of H2 . PMID- 29024116 TI - Different mutational function of low- and high-linear energy transfer heavy-ion irradiation demonstrated by whole-genome resequencing of Arabidopsis mutants. AB - Heavy-ion irradiation is a powerful mutagen that possesses high linear energy transfer (LET). Several studies have indicated that the value of LET affects DNA lesion formation in several ways, including the efficiency and the density of double-stranded break induction along the particle path. We assumed that the mutation type can be altered by selecting an appropriate LET value. Here, we quantitatively demonstrate differences in the mutation type induced by irradiation with two representative ions, Ar ions (LET: 290 keV MUm-1 ) and C ions (LET: 30.0 keV MUm-1 ), by whole-genome resequencing of the Arabidopsis mutants produced by these irradiations. Ar ions caused chromosomal rearrangements or large deletions (>=100 bp) more frequently than C ions, with 10.2 and 2.3 per mutant genome under Ar- and C-ion irradiation, respectively. Conversely, C ions induced more single-base substitutions and small indels (<100 bp) than Ar ions, with 28.1 and 56.9 per mutant genome under Ar- and C-ion irradiation, respectively. Moreover, the rearrangements induced by Ar-ion irradiation were more complex than those induced by C-ion irradiation, and tended to accompany single base substitutions or small indels located close by. In conjunction with the detection of causative genes through high-throughput sequencing, selective irradiation by beams with different effects will be a powerful tool for forward genetics as well as studies on chromosomal rearrangements. PMID- 29024117 TI - Molecularly imprinted polymers synthesized via template immobilization on fumed silica nanoparticles for the enrichment of phosphopeptides. AB - Phosphorylation is a protein post-translational modification (PTM) that plays an important role in cell signaling, cell differentiation, and metabolism. The hyper phosphorylated forms of certain proteins have been appointed as biomarkers for neurodegenerative diseases, and phosphorylation-related mutations are important for detecting cancer pathways. Due to the low abundance of phosphorylated proteins in biological fluids, sample enrichment is beneficial prior to detection. Thus, a need to find new strategies for enriching phosphopeptides has emerged. Molecularly imprinted polymers (MIPs) are synthetic polymeric materials manufactured to exhibit affinity for a target molecule. In this study, MIPs have been synthesized using a new approach based on the use of fumed silica as sacrificial support acting as solid porogen with the template (phosphotyrosine) immobilized on its surface. Phosphotyrosine MIPs were tested against a mixture of peptides and phosphopeptides by performing micro-solid phase extraction using MIPs (MUMISPE) packed in a pipette tip. First, the capability of the materials to preferentially enrich phosphopeptides was evaluated. In a next step, the enrichment of phosphopeptides from a whole-cell lysate of human embryonic kidney (HEK) 293T cells was performed. The eluates were analyzed using MALDI-MS in the first case and with nano-HPLC-ESI-MS/MS in the second case. The results showed that the MIPs provided affinity for phosphopeptides, binding preferentially to multi-site phosphorylated peptides. The MIPs could enrich phosphopeptides in over 10-fold compared with the number of phosphopeptides found in a cell lysate without enrichment. PMID- 29024118 TI - Rice SUMO protease Overly Tolerant to Salt 1 targets the transcription factor, OsbZIP23 to promote drought tolerance in rice. AB - Conjugation of SUMO (Small Ubiquitin-like Modifier) protein to cellular targets is emerging as a very influential protein modification system. Once covalently bound, SUMO conjugation can change the stability or functionality of its cognate target proteins. SUMO protease can rapidly reverse SUMO conjugation making this modification system highly dynamic. A major factor in the variation of SUMO target function is the balance between the conjugated/de-conjugated forms. The mechanistic role of these regulatory SUMO proteases in mediating stress responses has not been defined in any crops. In this study, we reveal the role of the SUMO protease, OsOTS1 in mediating tolerance to drought in rice. OsOTS1 depleted transgenic plants accumulate more ABA and exhibit more productive agronomic traits during drought while OsOTS1 overexpressing lines are drought sensitive but ABA insensitive. Drought and ABA treatment stimulates the degradation of OsOTS1 protein indicating that SUMO conjugation is an important response to drought stress in rice achieved through down-regulation of OTS1/2 activity. We reveal that OsOTS1 SUMO protease directly targets the ABA and drought responsive transcription factor OsbZIP23 for de-SUMOylation affecting its stability. OsOTS RNAi lines show increased abundance of OsbZIP23 and increased drought responsive gene expression while OsOTS1 overexpressing lines show reduced levels of OsbZIP23 leading to suppressed drought responsive gene expression. Our data reveal a mechanism in which rice plants govern ABA-dependant drought responsive gene expression by controlling the stability of OsbZIP23 by SUMO conjugation through manipulating specific SUMO protease levels. PMID- 29024120 TI - Remodeling- and Modeling-Based Bone Formation With Teriparatide Versus Denosumab: A Longitudinal Analysis From Baseline to 3 Months in the AVA Study. AB - There has been renewed interest of late in the role of modeling-based formation (MBF) during osteoporosis therapy. Here we describe early effects of an established anabolic (teriparatide) versus antiresorptive (denosumab) agent on remodeling-based formation (RBF), MBF, and overflow MBF (oMBF) in human transiliac bone biopsies. Postmenopausal women with osteoporosis received subcutaneous teriparatide (n = 33, 20 MUg/d) or denosumab (n = 36, 60 mg once/6 months), open-label for 6 months at 7 US and Canadian sites. Subjects received double fluorochrome labeling at baseline and before biopsy at 3 months. Sites of bone formation were designated as MBF if the underlying cement line was smooth, RBF if scalloped, and oMBF if formed over smooth cement lines adjacent to scalloped reversal lines. At baseline, mean RBF/bone surface (BS), MBF/BS, and oMBF/BS were similar between the teriparatide and denosumab groups in each bone envelope assessed (cancellous, endocortical, periosteal). All types of formation significantly increased from baseline in the cancellous and endocortical envelopes (differences p < 0.001) with teriparatide (range of changes 2.9- to 21.9-fold), as did MBF in the periosteum (p < 0.001). In contrast, all types of formation were decreased or not significantly changed with denosumab, except MBF/BS in the cancellous envelope, which increased 2.5-fold (difference p = 0.048). These data highlight mechanistic differences between these agents: all 3 types of bone formation increased significantly with teriparatide, whereas formation was predominantly decreased or not significantly changed with denosumab, except for a slight increase in MBF/BS in the cancellous envelope. (c) 2017 American Society for Bone and Mineral Research. PMID- 29024121 TI - The need to exercise caution in accepting addiction as a reason for performing euthanasia. AB - The recent practice in Belgium and the Netherlands of accepting addiction as a reason for performing euthanasia raises important issues for the field of addiction and the practice of euthanasia. In this paper we outline some of these issues. We also argue that physicians making decisions about whether to accept requests for euthanasia from people with an allegedly untreatable addiction should consider two issues carefully. They should ensure that: (1) the person has the capacity to give free and informed consent to undergo euthanasia; and (2) their request is the outcome of a deliberative process in which all reasonable treatment options and harm reduction measures have been offered to and considered by the person. PMID- 29024119 TI - Automatic segmentation of puborectalis muscle on three-dimensional transperineal ultrasound. AB - OBJECTIVES: The introduction of three-dimensional (3D) analysis of the puborectalis muscle (PRM) for diagnostic purposes into daily practice is hindered by the need for appropriate training of observers. Automatic segmentation of the PRM on 3D transperineal ultrasound may aid its integration into clinical practice. The aims of this study were to present and assess a protocol for manual 3D segmentation of the PRM on 3D transperineal ultrasound, and to use this for training of automatic 3D segmentation method of the PRM. METHODS: The data used in this study were derived from 3D transperineal ultrasound sequences of the pelvic floor acquired at 12 weeks' gestation from nulliparous women with a singleton pregnancy. A manual 3D segmentation protocol was developed for the PRM based on a validated two-dimensional segmentation protocol. For automatic segmentation, active appearance models of the PRM were developed, trained using manual segmentation data from 50 women. The performances of both manual and automatic segmentation were analyzed by measuring the overlap and distance between the segmentations. Intraclass correlation coefficients (ICCs) and their 95% CIs were determined for mean echogenicity and volume of the puborectalis muscle, in order to assess inter- and intraobserver reliabilities of the manual method using data from 20 women, as well as to compare the manual and automatic methods. RESULTS: Interobserver reliabilities for mean echogenicity and volume were very good for manual segmentation (ICCs 0.987 and 0.910, respectively), as were intraobserver reliabilities (ICCs 0.991 and 0.877, respectively). ICCs for mean echogenicity and volume were very good and good, respectively, for the comparison of manual vs automatic segmentation (0.968 and 0.626, respectively). The overlap and distance results for manual segmentation were as expected, showing an average mismatch of only 2-3 pixels and reasonable overlap. Based on overlap and distance, five mismatches were detected for automatic segmentation, resulting in an automatic segmentation success rate of 90%. CONCLUSIONS: This study presents a reliable manual segmentation protocol and automatic 3D segmentation method for the PRM, which will facilitate future investigation of the PRM, allowing for the reliable measurement of potentially clinically valuable parameters such as mean echogenicity. (c) 2017 The Authors. Ultrasound in Obstetrics & Gynecology Published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology. PMID- 29024122 TI - Guided Molecular Assembly on a Locally Reactive 2D Material. AB - Atomically precise engineering of the position of molecular adsorbates on surfaces of 2D materials is key to their development in applications ranging from catalysis to single-molecule spintronics. Here, stable room-temperature templating of individual molecules with localized electronic states on the surface of a locally reactive 2D material, silicene grown on ZrB2 , is demonstrated. Using a combination of scanning tunneling microscopy and density functional theory, it is shown that the binding of iron phthalocyanine (FePc) molecules is mediated via the strong chemisorption of the central Fe atom to the sp3 -like dangling bond of Si atoms in the linear silicene domain boundaries. Since the planar Pc ligand couples to the Fe atom mostly through the in-plane d orbitals, localized electronic states resembling those of the free molecule can be resolved. Furthermore, rotation of the molecule is restrained because of charge rearrangement induced by the bonding. These results highlight how nanoscale changes can induce reactivity in 2D materials, which can provide unique surface interactions for enabling novel forms of guided molecular assembly. PMID- 29024123 TI - Morphological characterization of ckd in cats: Insights of fibrogenesis to be recognized. AB - Renal fibrosis is characterized by glomerulosclerosis and tubulointerstitial fibrosis and its pathogenesis is associated with the activity of mesenchymal cells (fibroblasts), being essentially characterized by a process of excessive accumulation resulting from the deposition of extracellular matrix components. The aim of this study was to characterize the morphological presentation of chronic and fibrotic lesions in the glomerular, tubular, interstitial, and vascular compartments in feline CKD, as well as the possible participation of myofibroblasts in renal fibrotic processes in this species. Cat kidneys were collected and processed according to the conventional techniques for light microscopy, circular polarization, immunohistochemistry, and electron microscopy. Fibrotic alterations were present in all compartments analyzed. The main findings in the glomerular compartment were different degrees of glomerular sclerosis, synechia formation, Bowman's capsule calcification, in addition to glomerular basement membrane thickening and pericapsular fibrosis. The tubulointerstitial compartment had intense tubular degeneration and the immunostaining in tubular cells for mesenchymal cell markers demonstrated the possibility of mesenchymal epithelial transition and consequent involvement of myofibroblasts in the development of interstitial tubule damage. Infiltration of inflammatory cells, added to vessel thickening and fibrosis, demonstrated the severity and role of inflammation in the development and perpetuation of damage. Thus, we may conclude that fibrotic lesions play a relevant role in feline CKD and the mechanism of perpetuation of these lesions need further elucidation regarding the origin and participation of myofibroblasts and consequent mesenchymal epithelial transition in this species. PMID- 29024124 TI - Examining a Dual-Process Model of Desensitization and Hypersensitization to Community Violence in African American Male Adolescents. AB - The purpose of the current study was to examine a dual-process model of reactivity to community violence exposure in African American male adolescents from urban communities. The model focused on desensitization and hypersensitization effects as well as desensitization and hypersensitization as predictors of aggressive behavior. Participants were 133 African American male high school students, mean age = 15.17 years, SD = 0.96. Participants completed measures of exposure to community violence, depressive symptoms, hyperarousal symptoms, aggressive beliefs, and aggressive behaviors at two time points. Community violence exposure predicted changes in aggression, beta = .25, p = .004, and physiological arousal, beta = .22, p = .010, over time, but not aggressive beliefs. The curvilinear association between community violence exposure and changes in depression over time was not significant, beta = .42, p = .083, but there was a significant linear association between the exposure to community violence (ECV) and changes in levels of depression over time, beta = .21, p = .014. Results indicated a significant mediation effect for hyperarousal on the association between community violence exposure and aggressive behavior, B = 0.20, 95% CI = [0.04, 0.54]. Results showed support for physiological hypersensitization, with hypersensitization increasing the risk for aggressive behavior. PMID- 29024125 TI - New Insights into the Operating Voltage of Aqueous Supercapacitors. AB - The main limitation of aqueous supercapacitors (SCs) lies in their narrow operating voltages, especially when compared with organic SCs. Fundamental understanding of factors relevant to the operating voltage helps providing guidance for the assembly of high-voltage aqueous SCs. In this regard, this concept analyzes the deciding factors for the operating voltage of aqueous SCs. Strategies applied to expand the operating voltage are summarized and discussed from the aspects of electrolyte, electrode, and asymmetric structure. Dynamic factors associated with water electrolysis and maximally using the available potential ranges of electrodes are particularly emphasized. Finally, other promising approaches that have not been explored and their challenges are also elaborated, hoping to provide more insights for the design of high-voltage aqueous SCs. PMID- 29024126 TI - Highly Crystalline C8-BTBT Thin-Film Transistors by Lateral Homo-Epitaxial Growth on Printed Templates. AB - Highly crystalline thin films of organic semiconductors offer great potential for fundamental material studies as well as for realizing high-performance, low-cost flexible electronics. The fabrication of these films directly on inert substrates is typically done by meniscus-guided coating techniques. The resulting layers show morphological defects that hinder charge transport and induce large device to-device variability. Here, a double-step method for organic semiconductor layers combining a solution-processed templating layer and a lateral homo epitaxial growth by a thermal evaporation step is reported. The epitaxial regrowth repairs most of the morphological defects inherent to meniscus-guided coatings. The resulting film is highly crystalline and features a mobility increased by a factor of three and a relative spread in device characteristics improved by almost half an order of magnitude. This method is easily adaptable to other coating techniques and offers a route toward the fabrication of high performance, large-area electronics based on highly crystalline thin films of organic semiconductors. PMID- 29024127 TI - Pacemapping guided by defibrillator electrograms for ventricular tachycardia ablation in a patient with ARVD/C. PMID- 29024128 TI - Foetal development of skeletal muscle in bovines as a function of maternal nutrition, foetal sex and gestational age. AB - To determine the effects of maternal nutrition on modifications of foetal development of the skeletal muscle and possible increase in the potential of skeletal muscle growth in cattle, gestating cows were either fed 190% NRC recommendations (overnourished; ON) or 100% NRC recommendation (control; CO). Interaction between maternal nutrition (MN) and the foetal sex (FS) was also investigated. Foetuses were necropsied at four different time points throughout gestation (139, 199, 241 and 268 days of gestation) to assess the mRNA expression of myogenic, adipogenic and fibrogenic markers in skeletal muscle. Phenotypic indicators of the development of skeletal muscle fibres, intramuscular lipogenesis and collagen development were also evaluated. Modifications in mRNA expression of skeletal muscle of foetuses were observed in function of MN and FS despite the lack of effect of MN and FS on foetal weight at necropsy. Maternal ON increased the mRNA expression of the myogenic marker Cadherin-associated protein, beta 1 (CTNNB1) and adipogenic markers Peroxissome proliferator-activated receptor gamma (PPARG) and Zinc finger protein 423 (ZNF423) at midgestation. However, no differences on foetal skeletal muscle development were observed between treatments at late gestation indicating that a compensatory development may have occurred on CO foetuses making the effect of MN on skeletal muscle development not significant at late gestation. Moreover, our data have shown an evidence of sexual dimorphism during foetal stage with a greater skeletal muscle development in male than in female foetuses. In conclusion, providing a higher nutritional level to pregnant cows changes the trajectory of the development of skeletal muscle during midgestation, but apparently does not change the potential of post-natal growth of muscle mass of the offspring, as no differences in skeletal muscle development were observed in late gestation. PMID- 29024129 TI - Efficacy of vitamins E and C for reversing the cytotoxic effects of nicotine and cotinine. AB - Nicotine has adverse cellular and molecular effects on oral mucosa, bone, and teeth. Vitamin E (alpha-tocopherol) and vitamin C (ascorbic acid) are biological antioxidants with positive effects on wound healing and bone formation. This in vitro study sought to assess the cytotoxic effects of different concentrations of nicotine and cotinine (a metabolite of nicotine) on MG-63 osteoblast-like cells and human gingival fibroblasts (HGFs) in the presence and absence of antioxidant vitamins E and C (separately and combined). Cell viability and proliferation were assessed using the methyl thiazol tetrazolium (MTT) assay. Cell migration was assessed using the scratch test, and expression of apoptosis-related genes was quantitatively analyzed using real-time PCR. Dose-dependent negative effects of nicotine on the morphology, viability, proliferation, and migration of MG-63 and HGF cells were statistically significantly greater than those of cotinine. Vitamin E (separately and combined with vitamin C) was statistically significantly more effective than vitamin C (at the concentration used in this study) at improving cell viability, proliferation, and migration, and at reducing apoptosis of cells exposed to nicotine or cotinine. Based on the positive results of this study, vitamin C and especially vitamin E (systemically and/or locally) may be useful in the repair and regeneration of oral hard and soft tissues in smokers. PMID- 29024130 TI - Continuity between DSM-5 Section II and Section III personality traits for obsessive-compulsive personality disorder. AB - OBJECTIVE: Obsessive-compulsive personality disorder (OCPD) is formally operationalized in Section II of the DSM-5 by a heterogeneous collection of 8 categorical criteria. Section III contains an alternative model operationalizing personality disorders via dimensional personality traits and associated impairment. The extent to which the personality traits used to define OCPD in Section III correspond with the Section II operationalization of the disorder is contested. The current study aims to contribute to the evidence base necessary to solidify the optimal trait profile for this disorder via a more fine-tuned examination of OCPD. METHOD: The research questions were examined using a clinical sample of 142 Danish adults who completed the Structured Clinical Interview for DSM-IV Axis II Disorders and the Personality Inventory for DSM-5 to index both the Sections II and III (personality traits) operationalizations of OCPD, respectively. RESULTS: Bivariate correlations supported Rigid Perfectionism and Perseveration as traits relevant to OCPD; however, hierarchical regression analyses indicated that of the 4 traits used in the Section III operationalization of OCPD, only Rigid Perfectionism uniquely predicted OCPD (p < .05). In addition to Rigid Perfectionism, the conceptually relevant traits of Submissiveness, Suspiciousness, and (low) Impulsivity were also found to uniquely predict OCPD and its specific symptoms in a regression model. CONCLUSIONS: These findings indicate that the traits proposed in Section III are only partially aligned with the traditional, Section II conceptualization of OCPD, and may be augmented by incorporating Submissiveness, Suspiciousness, and (low) Impulsivity. In light of the current findings and existing literature, a modified constellation of traits to operationalize OCPD is likely justified. PMID- 29024132 TI - Expression of isotocin is male-specifically up-regulated by gonadal androgen in the medaka brain. AB - Oxytocin, a mammalian neuropeptide primarily synthesised in the supraoptic and paraventricular nuclei of the hypothalamus, mediates a variety of physiological and behavioural processes, ranging from parturition and lactation to affiliation and prosociality. Multiple studies in rodents have shown that the expression of the oxytocin gene (Oxt) is stimulated by oestrogen, whereas androgen has no apparent effect. However, this finding is not consistent across all studies, and no study has examined sex steroid regulation of Oxt or its orthologues in other animals. In the present study, we show that, in the teleost fish, medaka (Oryzias latipes), the expression of the isotocin gene (it), the teleost orthologue of Oxt, in the parvocellular preoptic nuclei (homologous to the mammalian supraoptic nucleus) is male-specifically up-regulated by gonadal androgen, whereas it expression in the magnocellular/gigantocellular preoptic nuclei (homologous to the mammalian paraventricular nucleus) is independent of sex steroids in both sexes. None of the it-expressing neurones appear to co-express androgen receptors, suggesting that the effect of androgen on it expression is indirect. We found that the expression of a kisspeptin gene, kiss2, in the male brain is dependent on gonadal androgen, raising the possibility that the androgen dependent expression of it may be mediated by kiss2 neurones. Our data also show that the isotocin peptide synthesised in response to androgen is axonally transported to the posterior pituitary to act peripherally. Given that levels of it expression are higher in females than in males, androgen may serve to compensate for the female-biased it expression to ensure a role for isotocin that is equally important for both sexes. These results are unexpectedly quite different from those reported in rodents, indicating that the regulatory role of sex steroids in Oxt/it expression has diverged during evolution, possibly with accompanying changes in the role of oxytocin/isotocin. PMID- 29024131 TI - The effect of dietary supplementation with Aurantiochytrium limacinum on lactating dairy cows in terms of animal health, productivity and milk composition. AB - The aim of this study was to investigate the effect of dietary supplementation with the docosahexaenoic acid (DHA)-rich microalgae, Aurantiochytrium limacinum (AURA), on a variety of health and productivity parameters in lactating cows. Twenty-four cows were blocked by parity and number of days in milk and then randomly assigned to a control (CON; n = 12) group with no algal supplementation, or a treatment group (AURA; n = 12) provided with 100 g AURA cow-1 day-1 or 16 g DHA cow-1 day-1 . A variety of health and productivity measurements were taken, and results indicated that supplementation had no negative effects on animal health in terms of somatic cell count, haematological and biochemical blood parameters, while body condition was marginally improved by algal supplementation. No differences were found for the various production parameters measured; however, a tendency towards increased milk production was observed for the AURA group during the final stage of the study (+4.5 kg cow-1 day-1 , day 78 84). The fatty acid profile of milk was improved by supplementation, with significantly lower saturated fatty acids, significantly higher omega-3 fatty acids and an improved omega-3/omega-6 ratio observed when compared to the control group. The amount of DHA in the milk of cows provided 105 g AURA head-1 day-1 was 4.7 mg/100 g milk with a peak transfer efficiency from feed to milk at day 49 of 8.3%. These results indicate that supplementation with 105 g AURA head-1 day 1 resulted in the successful enrichment of milk with DHA without negatively impacting the health or productivity of the animals. PMID- 29024133 TI - Plasma natriuretic peptide levels in fetuses with congenital heart defect and/or arrhythmia. AB - OBJECTIVE: Diagnosing fetal heart failure remains challenging because it is difficult to know how well the fetal myocardium will perform as loading conditions change. In adult cardiology, natriuretic peptides (NPs) are established markers of heart failure. However, the number of studies investigating NP levels in fetuses is quite limited. The aim of this study was to evaluate the significance of plasma NP levels in the assessment of heart failure in fetuses with a congenital heart defect (CHD) and/or arrhythmia. METHODS: This was a prospective observational study conducted at a tertiary pediatric cardiac center. A total of 129 singletons with CHD and/or arrhythmia and 127 controls were analyzed between 2012 and 2015. Umbilical cord plasma atrial NP, brain NP and N-terminal pro-brain NP levels at birth were compared with ultrasonography findings indicating fetal heart failure, such as cardiovascular profile (CVP) score and morphological characteristics. RESULTS: Fetuses with CHD and/or arrhythmia had higher NP levels than did controls (P < 0.01). NP levels of fetuses with CHD and/or arrhythmia were correlated inversely with CVP score (P for trend < 0.01). No differences in NP levels were found in fetuses with CHD and/or arrhythmia and a CVP score of >= 8 in comparison to controls. Multivariate analysis showed that a CVP score of <= 5, tachy- or bradyarrhythmia at birth, preterm birth and umbilical artery pH < 7.15 were associated independently with high NP levels (P < 0.01). Among fetuses with a CVP score of <= 7, abnormal venous Doppler sonography findings were significantly more common and more severe in fetuses with tachy- or bradyarrhythmia than in those with CHD, and those with tachy- or bradyarrhythmia had higher NP levels than did those with CHD (P = 0.01). Fetuses with right-heart defect and moderate or severe tricuspid valve regurgitation had significantly higher NP levels than did fetuses with other types of CHD (P < 0.01). CONCLUSIONS: Plasma NP levels in fetuses with CHD and/or arrhythmia are correlated with the severity of fetal heart failure. Elevated NP levels are attributed mainly to an increase in central venous pressure secondary to arrhythmia or atrioventricular valve regurgitation due to CHD, rather than to the morphological abnormality itself. Copyright (c) 2017 ISUOG. Published by John Wiley & Sons Ltd. PMID- 29024134 TI - Telechelic Polybutadienes or Polyisoprenes Precursors for Recyclable Elastomeric Networks. AB - (Bis)furan-telechelic, low-molar-mass polybutadienes and polyisoprenes are synthesized by controlled degradation of high molar mass polymers and chain-end modifications yielding difunctional, trifunctional, or tetrafunctional polymers. Addition of a bismaleimide to the liquid-modified polymer leads to the formation of a thermoreversible elastomeric network based on the Diels-Alder chemistry for the trifunctional or tetrafunctional polymers, whereas only chain extension occurs for the bifunctional one. Dynamic mechanical analyses or tensile tests are performed on the networks and reveal a similar behavior for polyisoprene and polybutadiene with nevertheless quite different Young modulus or strain at break. The retro Diels-Alder reaction occurs upon heating, allowing the remolding of the used elastomer. The remolded network exhibits the same mechanical properties as the initial network, showing an efficient material recyclability. PMID- 29024136 TI - Streptavidin as a Scaffold for Light-Induced Long-Lived Charge Separation. AB - Long-lived photo-driven charge separation is demonstrated by assembling a triad on a protein scaffold. For this purpose, a biotinylated triarylamine was added to a RuII -streptavidin conjugate bearing a methyl viologen electron acceptor covalently linked to the N-terminus of streptavidin. To improve the rate and lifetime of the electron transfer, a negative patch consisting of up to three additional negatively charged amino acids was engineered through mutagenesis close to the biotin-binding pocket of streptavidin. Time-resolved laser spectroscopy revealed that the covalent attachment and the negative patch were beneficial for charge separation within the streptavidin hosted triad; the charge separated state was generated within the duration of the excitation laser pulse, and lifetimes up to 3120 ns could be achieved with the optimized supramolecular triad. PMID- 29024135 TI - Congenital Uterine Malformation by Experts (CUME): better criteria for distinguishing between normal/arcuate and septate uterus? AB - OBJECTIVES: To assess the level of agreement between experts in distinguishing between septate and normal/arcuate uterus using their subjective judgment when reviewing the coronal view of the uterus from three-dimensional ultrasound. Another aim was to determine the interobserver reliability and diagnostic test accuracy of three measurements suggested by recent guidelines, using as reference standard the decision made most often by experts (Congenital Uterine Malformation by Experts (CUME)). METHODS: Images of the coronal plane of the uterus from 100 women with suspected fundal internal indentation were anonymized and provided to 15 experts (five clinicians, five surgeons and five sonologists). They were instructed to indicate whether they believed the uterus to be normal/arcuate (defined as normal uterine morphology or not clinically relevant degree of distortion caused by internal indentation) or septate (clinically relevant degree of distortion caused by internal indentation). Two other observers independently measured indentation depth, indentation angle and indentation-to-wall-thickness (I:WT) ratio. The agreement between experts was assessed using kappa, the interobserver reliability was assessed using the concordance correlation coefficient (CCC), the diagnostic test accuracy was assessed using the area under the receiver-operating characteristics curve (AUC) and the best cut-off value was assessed using Youden's index, considering as the reference standard the choice made most often by the experts (CUME). RESULTS: There was good agreement between all experts (kappa, 0.62). There were 18 septate and 82 normal/arcuate uteri according to CUME; European Society of Human Reproduction and Embryology (ESHRE) European Society for Gynaecological Endoscopy (ESGE) criteria (I:WT ratio > 50%) defined 80 septate and 20 normal/arcuate uteri, while American Society for Reproductive Medicine (ASRM) criteria defined five septate (depth > 15 mm and angle < 90 degrees ), 82 normal/arcuate (depth < 10 mm and angle > 90 degrees ) and 13 uteri that could not be classified (referred to as the gray-zone). The agreement between ESHRE-ESGE and CUME was 38% (kappa, 0.1); the agreement between ASRM criteria and CUME for septate was 87% (kappa, 0.39), and considering both septate and gray-zone as septate, the agreement was 98% (kappa, 0.93). Among the three measurements, the interobserver reproducibility of indentation depth (CCC, 0.99; 95% CI, 0.98-0.99) was better than both indentation angle (CCC, 0.96; 95% CI, 0.94-0.97) and I:WT ratio (CCC, 0.92; 95% CI, 0.90-0.94). The diagnostic test accuracy of these three measurements using CUME as reference standard was very good, with AUC between 0.96 and 1.00. The best cut-off values for these measurements to define septate uterus were: indentation depth >= 10 mm, indentation angle < 140 degrees and I:WT ratio > 110% . CONCLUSIONS: The suggested ESHRE-ESGE cut-off value overestimates the prevalence of septate uterus while that of ASRM underestimates this prevalence, leaving in the gray-zone most of the uteri that experts considered as septate. We recommend considering indentation depth >= 10 mm as septate, since the measurement is simple and reliable and this criterion is in agreement with expert opinion. Copyright (c) 2017 ISUOG. Published by John Wiley & Sons Ltd. PMID- 29024137 TI - Do male athletes with already high initial haemoglobin mass benefit from 'live high-train low' altitude training? AB - NEW FINDINGS: What is the central question of this study? It has been assumed that athletes embarking on an 'live high-train low' (LHTL) camp with already high initial haemoglobin mass (Hbmass ) have a limited ability to increase their Hbmass further post-intervention. Therefore, the relationship between initial Hbmass and post-intervention increase was tested with duplicate Hbmass measures and comparable hypoxic doses in male athletes. What is the main finding and its importance? There were trivial to moderate inverse relationships between initial Hbmass and percentage Hbmass increase in endurance and team-sport athletes after the LHTL camp, indicating that even athletes with higher initial Hbmass can reasonably expect Hbmass gains post-LHTL. It has been proposed that athletes with high initial values of haemoglobin mass (Hbmass ) will have a smaller Hbmass increase in response to 'live high-train low' (LHTL) altitude training. To verify this assumption, the relationship between initial absolute and relative Hbmass values and their respective Hbmass increase following LHTL in male endurance and team-sport athletes was investigated. Overall, 58 male athletes (35 well-trained endurance athletes and 23 elite male field hockey players) undertook an LHTL training camp with similar hypoxic doses (200-230 h). The Hbmass was measured in duplicate pre- and post-LHTL by the carbon monoxide rebreathing method. Although there was no relationship (r = 0.02, P = 0.91) between initial absolute Hbmass (in grams) and the percentage increase in absolute Hbmass , a moderate relationship (r = -0.31, P = 0.02) between initial relative Hbmass (in grams per kilogram) and the percentage increase in relative Hbmass was detected. Mean absolute and relative Hbmass increased to a similar extent (P >= 0.81) in endurance (from 916 +/- 88 to 951 +/- 96 g, +3.8%, P < 0.001 and from 13.1 +/- 1.2 to 13.6 +/- 1.1 g kg-1 , +4.1%, P < 0.001, respectively) and team-sport athletes (from 920 +/- 120 to 957 +/- 127 g, +4.0%, P < 0.001 and from 11.9 +/- 0.9 to 12.3 +/- 0.9 g kg-1 , +4.0%, P < 0.001, respectively) after LHTL. The direct comparison study using individual data of male endurance and team-sport athletes and strict methodological control (duplicate Hbmass measures and matched hypoxic dose) indicated that even athletes with higher initial Hbmass can reasonably expect Hbmass gain post-LHTL. PMID- 29024138 TI - Safranal Inhibits HeLa Cell Viability by Perturbing the Reassembly Potential of Microtubules. AB - Saffron, a spice from Crocus sativus, has been known for its health benefits and medicinal properties. Safranal is a component of saffron and is known for its antioxidant and anticancer properties. In this study, we elucidated a possible tubulin-targeted antiproliferative mechanism of action of safranal. In vitro, the compound perturbed secondary structure of tubulin without altering net microtubule polymer mass. It inhibited HeLa cell viability in a concentration dependent manner, with minimal damage to cellular microtubules. However, it strongly inhibited recovery of microtubule network after cold-induced disassembly, indicating its ability to interfere with the nucleation potential of tubulin. Further, as the acetylation pattern of the safranal-treated microtubules revealed, unlike many tubulin-targeted agents, the compound did not appear to induce persistent stabilization of microtubules. Our data shows an unusual, tubulin-targeted antiproliferative mechanism of safranal. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29024139 TI - Chlorpyrifos interacts with other agricultural stressors to alter stream communities in laboratory microcosms. AB - Chlorpyrifos is one of the most widely used agricultural insecticides in the world, but to date there is limited empirical information about its potential to interact with other common agricultural stressors. We conducted a 15-d, community level, microcosm experiment evaluating individual and combined effects of chlorpyrifos, nutrient enrichment, and sedimentation on stream invertebrate communities (abundance, biomass, richness, size structure, composition) and ecosystem processes (primary productivity and leaf decomposition). We found that sedimentation was the most detrimental stressor, with significant negative impacts on most invertebrate community and ecosystem function variables. Even though chlorpyrifos did not cause significant invertebrate mortality in the microcosms, it still altered ecosystem function by lowering leaf decomposition rates, probably through sublethal inhibition of invertebrate shredders. Furthermore, we observed a significant reversal interaction between chlorpyrifos and sediment for small-sized invertebrates collected in gravel (abundance in sediment * insecticide microcosms was 2.4 times lower than predicted by additivity), as well as an antagonistic interaction with nutrients on invertebrate richness in the same microhabitat (richness in nutrient * insecticide microcosms was 1.6 times higher than predicted by additivity). Our results suggest that chlorpyrifos has the potential to alter freshwater ecosystem function and interact non-additively with other common agricultural stressors. These findings are in keeping with a growing body of research highlighting that multiple stressor interactions and ecosystem processes should be considered when evaluating the impacts of organic toxicants on freshwater ecosystems. PMID- 29024140 TI - Do genetic drift and accumulation of deleterious mutations preclude adaptation? Empirical investigation using RADseq in a northern lacustrine fish. AB - Understanding genomic signatures of divergent selection underlying long-term adaptation in populations located in heterogeneous environments is a key goal in evolutionary biology. In this study, we investigated neutral, adaptive and deleterious genetic variation using 7,192 SNPs in 31 Lake Trout (Salvelinus namaycush) populations (n = 673) from Quebec, Canada. Average genetic diversity was low, weakly shared among lakes, and positively correlated with lake size, indicating a major role for genetic drift subsequent to lake isolation. Putatively deleterious mutations were on average at lower frequencies than the other SNPs, and their abundance relative to the entire polymorphism in each population was positively correlated with inbreeding, suggesting that the effectiveness of purifying selection was negatively correlated with inbreeding, as predicted from theory. Despite evidence for pronounced genetic drift and inbreeding, several outlier loci were associated with temperature and found in or close to genes with biologically relevant functions notably related to heat stress and immune responses. Outcomes of gene-temperature associations were influenced by the inclusion of the most inbred populations, in which allele frequencies deviated the most from model predictions. This result illustrates challenge in identifying gene-environment associations in cases of high genetic drift and restricted gene flow and suggests limited adaptation in populations experiencing higher inbreeding. We discuss the relevance of these findings for the conservation and management, notably regarding stocking and genetic rescue, of Lake Trout populations and other species inhabiting highly fragmented habitats. PMID- 29024141 TI - Rational Design and Synthesis of Unsaturated Se-Containing Osmacycles with sigma Aromaticity. AB - Isolation of the simplest 4pi three-membered heterocycles (1H-azirine, oxirene, thiirene, and selenirene) remains a big challenge due to their pi-antiaromaticity and significant ring strain. Here we demonstrate that the incorporation of a transition-metal fragment could stabilize the antiaromatic selenirene and pentalene frameworks simultaneously by density functional theory (DFT) calculations. Experimental verification leads to the Se-containing metallapolycycles, osmapentaloselenirenes, with remarkable thermal stability. The osmaselenirene unit in the metallapolycycle is determined to be the first example of sigma-aromaticity dominating in an unsaturated Se-containing ring. Our results not only highlight a remarkable stabilization by the transition-metal but also widen the scope of sigma-aromaticity in unsaturated rings, which is traditionally reserved for the domain of pi-aromaticity. PMID- 29024142 TI - Did Late Pleistocene climate change result in parallel genetic structure and demographic bottlenecks in sympatric Central African crocodiles, Mecistops and Osteolaemus? AB - The mid-Holocene has had profound demographic impacts on wildlife on the African continent, although there is little known about the impacts on species from Central Africa. Understanding the impacts of climate change on codistributed species can enhance our understanding of ecosystem dynamics and for formulating restoration objectives. We took a multigenome comparative approach to examine the phylogeographic structure of two poorly known Central African crocodile species Mecistops sp. aff. cataphractus and Osteolaemus tetraspis. In addition, we conducted coalescent-based demographic reconstructions to test the hypothesis that population decline was driven by climate change since the Last Glacial Maximum, vs. more recent anthropogenic pressures. Using a hierarchical Bayesian model to reconstruct demographic history, we show that both species had dramatic declines (>97%) in effective population size in the 'period following the Last Glacial Maximum 1,500-18,000 YBP. Identification of genetic structuring showed both species have similar regional structure corresponding to major geological features (i.e., hydrologic basin) and that small observed differences between them are best explained by the differences in their ecology and the likely impact that climate change had on their habitat needs. Our results support our hypothesis that climatic effects, presumably on forest and wetland habitat, had a congruent negative impact on both species. PMID- 29024143 TI - Fabrication of a Simple Acrylic Template to Standardize Periapical Radiographs for Implants Retaining Mandibular Bar Overdentures. AB - A standardized periapical radiograph is still the most suitable technique for monitoring peri-implant osseous destruction during long-term treatment. This article describes a new method for custom fabrication of an acrylic template with standardized reproducible assessment of implants retaining mandibular bar overdentures, without removal of the bar and regardless of the implant system used. PMID- 29024146 TI - Closing in on premature closure bias. PMID- 29024147 TI - Working with students with disabilities: simulation-based faculty development. PMID- 29024149 TI - Moving into relational empathy to address health disparities. PMID- 29024150 TI - Medical education research should extend further into clinical practice. PMID- 29024151 TI - Generic skills training through interprofessional peer-assisted learning. PMID- 29024152 TI - Teaching about ethics with an interprofessional mock trial. PMID- 29024153 TI - Developing measures for assessment of patient-centred communication: a case of the tail wagging the dog? PMID- 29024154 TI - Time required for a standard sunscreen to become effective following application: a UV photography study. PMID- 29024155 TI - Nanoparticle Regrowth Enhances Photoacoustic Signals of Semiconducting Macromolecular Probe for In Vivo Imaging. AB - Smart molecular probes that emit deep-tissue penetrating photoacoustic (PA) signals responsive to the target of interest are imperative to understand disease pathology and develop innovative therapeutics. This study reports a self-assembly approach to develop semiconducting macromolecular activatable probe for in vivo imaging of reactive oxygen species (ROS). This probe comprises a near-infrared absorbing phthalocyanine core and four poly(ethylene glycol) (PEG) arms linked by ROS-responsive self-immolative segments. Such an amphiphilic macromolecular structure allows it to undergo an ROS-specific cleavage process to release hydrophilic PEG and enhance the hydrophobicity of the nanosystem. Consequently, the residual phthalocyanine component self-assembles and regrows into large nanoparticles, leading to ROS-enhanced PA signals. The small size of the intact macromolecular probe is beneficial to penetrate into the tumor tissue of living mice, while the ROS-activated regrowth of nanoparticles prolongs the retention along with enhanced PA signals, permitting imaging of ROS during chemotherapy. This study thus capitalizes on stimuli-controlled self-assembly of macromolecules in conjunction with enhanced heat transfer in large nanoparticles for the development of smart molecular probes for PA imaging. PMID- 29024156 TI - Relationships between the second to fourth digit ratio (2D:4D) and game-related statistics in semi-professional female basketball players. AB - OBJECTIVE: Digit ratio (2D:4D) is a negative correlate of sports performance, although this relationship may be weak in open-skill sports such as basketball. The primary aim was to quantify relationships between 2D:4D and game-related statistics in semi-professional female basketball players. The secondary aim was to quantify the differences in mean 2D:4Ds between players based on their position in the starting lineup. METHODS: Using a cross-sectional design, 64 female basketball players who competed in the South Australian Premier League were measured in-season for height, mass, and 2D:4D, with game-related statistics collected end-season. Partial correlations (adjusted for age and body mass index) were used to quantify relationships between right and left 2D:4Ds and game related statistics. Unpaired t-tests were used to quantify differences in mean 2D:4Ds between starting and reserve players. RESULTS: 2D:4D was a substantial negative correlate of blocks, rebounds, and field-goal percentage; meaning, females with lower 2D:4Ds were generally better defensively as they recorded more blocks and rebounds, and were more efficient scorers, irrespective of their age and body size. Mean 2D:4D differed by position in the starting lineup, as females with lower 2D:4Ds were more likely to be in the starting lineup. CONCLUSIONS: This study found evidence that 2D:4D was a correlate of performance in an open skill sport. Female players with lower digit ratios tended to perform better in several aspects of basketball, especially defensively, and were more likely to be starters, suggesting they are the best players on the team in their positions. These results probably reflect the organizational benefits of prenatal testosterone. PMID- 29024157 TI - Regulation of nonylphenol-induced reproductive toxicity in mouse spermatogonia cells by miR-361-3p. AB - Nonylphenol (NP) is an environmental chemical that affects apoptosis and male infertility. In our study, we found that a high concentration of NP could down regulate the expression of microRNA-361-3p (miR-361-3p) in the murine GC-1 spermatogonia cell line and in vivo in murine spermatogonia. Additionally, one direct target of this miR, the 3' untranslated region of Killin (Klln) mRNA, was identified. Klln encodes a transcription factor that directly regulates the expression of Tp73 (transcriptionally active p73), whose encoded protein can up regulate the expression of Puma (p53 upregulated modulator of apoptosis). Thus, our investigation revealed that the expression of Klln, Tp73, and Puma increased upon NP-dependent down-regulation of miR-361-3p, which eventually leads to apoptosis of spermatogonia. PMID- 29024158 TI - Income-rich and wealth-poor? The impact of measures of socio-economic status in the analysis of the distribution of long-term care use among older people. AB - This article aims to investigate the impact of using 2 measures of socio-economic status on the analysis of how informal care and home care use are distributed among older people living in the community. Using data from the Survey of Health, Ageing and Retirement in Europe for 14 European countries, we estimate differences in corrected concentration indices for use of informal care and home care, using equivalised household net income and equivalised net worth (as a proxy for wealth). We also calculate horizontal inequity indices using both measures of socio-economic status and accounting for differences in need. The findings show that using wealth as a ranking variable results, as a rule, in a less pro-poor inequality of use for both informal and home care. Once differences in need are controlled for (horizontal inequity), wealth still results in a less pro-poor distribution for informal care, in comparison with income, whereas the opposite is observed for home care. Possible explanations for these differences and research and policy implications are discussed. PMID- 29024159 TI - Chemical Patterning of High-Mobility Semiconducting 2D Bi2 O2 Se Crystals for Integrated Optoelectronic Devices. AB - Patterning of high-mobility 2D semiconducting materials with unique layered structures and superb electronic properties offers great potential for batch fabrication and integration of next-generation electronic and optoelectronic devices. Here, a facile approach is used to achieve accurate patterning of 2D high-mobility semiconducting Bi2 O2 Se crystals using dilute H2 O2 and protonic mixture acid as efficient etchants. The 2D Bi2 O2 Se crystal after chemical etching maintains a high Hall mobility of over 200 cm2 V-1 s-1 at room temperature. Centimeter-scale well-ordered arrays of 2D Bi2 O2 Se with tailorable configurations are readily obtained. Furthermore, integrated photodetectors based on 2D Bi2 O2 Se arrays are fabricated, exhibiting excellent air stability and high photoresponsivity of ~2000 A W-1 at 532 nm. These results are one step towards the practical application of ultrathin 2D integrated digital and optoelectronic circuits. PMID- 29024160 TI - Oxyresveratrol, a Stilbene Compound from Morus alba L. Twig Extract Active Against Trichophyton rubrum. AB - Morus alba L. (mulberry) twig is known to have an inhibitory effect on pathogens in traditional Chinese medicine. In the present study, the dermophytic fungus, Trichophyton rubrum, was used to evaluate the inhibitory effect of total M. alba twig extract and extracts obtained using solvents with different polarities by the method of 96-well MTT colorimetry. The main active substance was isolated and identified by tracking its activity. In addition, the inhibitory effects of active extracts and a single active substance were investigated in combination with miconazole nitrate. Our data indicated that ethyl acetate extracts of mulberry twig (TEE) exhibited a desired inhibitory activity on T. rubrum with the minimum inhibitory concentration (MIC) of 1.000 mg/mL. With activity tracking, the main substance showing antimicrobial activity was oxyresveratrol (OXY), which was isolated from TEE. Its MIC for inhibiting the growth of T. rubrum was 0.500 mg/mL. The combined use of miconazole nitrate and OXY showed a synergistic inhibitory effect, as shown by a significant decrease in the MIC of both components. Based on the OXY content in TEE, the contribution rate of OXY to the inhibitory effect of TEE on T. rubrum was 80.52%, so it was determined to be the main antimicrobial substance in M. alba twig. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29024161 TI - Site-directed fluorescence labeling of intrinsically disordered region of human transcription factor YY1: The inhibitory effect of zinc ions. AB - Site-specific labeling of proteins with fluorescent dyes allows the study of protein structure and function using a wide variety of fluorescent techniques. However, specific labeling is not trivial in the case of proteins containing multiple cysteine residues. An example of such a protein is transcription factor Yin Yang 1, which comprises eight cysteine residues in four C2H2 type zinc fingers in the C-terminal region. Kinetic measurements of the labeling process allowed us to develop preparative labeling of three cysteine residues differently introduced to the N-terminal, disordered fragment of the protein. The protocol developed in the present study allows to prepare the protein with high recovery yield and high selectivity of the labeling. This was confirmed using proteolytic digestion and spectroscopic approach. The labeling process was significantly affected by the presence of zinc ions and was dependent on the localization of the engineered cysteine residue. This is the first known example of the use of cysteine metal protection and labeling (CyMPL) technology for the labeling of protein regions with no stable secondary structures. PMID- 29024162 TI - Sexuality and individual support plans for people with intellectual disabilities. AB - BACKGROUND: Sexual rights and sexuality are important aspects of quality of life, also for people with intellectual disabilities (IDs). However, providing support in this area to people with ID poses some challenges. In this study, the content of individual support plan (ISP) documents was analysed to determine the extent to which sexuality and sexual rights are addressed in part of the ISP documents. METHOD: Content analysis was carried out on a sample of 187 ISP documents from seven different service provider organisations in the Netherlands. First, we conducted a lexical search using terms related to sexuality and sexual health. The retrieved segments were then analysed. RESULTS: A total of 159 ISP documents (85%) of 60 men and 99 women contained some reference to aspects of sexuality. However, these references were mostly descriptive and offered little guidance in terms of providing support. Moreover, these notations mostly described negative or problematic aspects of sexuality. References to sexual education, treatment, intervention programs or support strategies were rarely found in the ISP documents. CONCLUSIONS: Although sexuality is addressed in most ISP documents, there is little information available about the provision of professional support in this area that would give people the opportunity to exert sexual rights. As sexuality and exerting sexual rights are important for people with ID as well as for other people, it is recommended that issues surrounding proactive sex education, shared decision-making and the implementation of sexual healthcare plans are addressed in the ISP. PMID- 29024163 TI - Ultrasonographic measurement of caudal vena cava to aorta ratios for determination of volume depletion in normal beagle dogs. AB - A noninvasive method for quantifying hydration status would be helpful for clinical management and for research applications in dogs. This prospective, experimental, pilot study aimed to assess the feasibility of ultrasonographic measurement of the caudal vena cava to aorta ratio as a method for quantifying volume depletion in dogs. In 12 normal beagle dogs, furosemide was administered intravenously at a dose of 1 mg/kg, every 2 h, for 8 h, to induce consecutive volume depletion. Every 30 min after administration, ultrasonographic images of the caudal vena cava and aorta, and physical and biological parameters related to dehydration were acquired. On transverse and longitudinal planes of caudal vena cava and aorta images, the height and area of the caudal vena cava and aorta were measured to calculate the caudal vena cava/aorta ratios. All images were acquired by approaching from the right intercostal space with the dogs in left lateral recumbency. A negative correlation was present between the percentage of weight loss in dogs and all four investigated caudal vena cava/aorta ratios (transverse plane width of the caudal vena cava [TW]/aorta; transverse plane height of caudal vena cava [TH]/aorta; longitudinal plane area of the caudal vena cava [TA]/aorta; and longitudinal plane maximal height of the caudal vena cava [L]/aorta). Significant differences (P < 0.001) were seen between dogs with and without clinical signs of dehydration for all caudal vena cava/aorta ratios. Findings indicated that ultrasonographic caudal vena cava/aorta ratios are feasible methods for quantifying volume depletion and for use as an adjunct to standard subjective methods for estimating hydration status in dogs. PMID- 29024166 TI - Aza versus Oxophilicity of SmI2 : A Break of a Paradigm. AB - Ligands that coordinate to SmI2 through oxygen are prevalent in the literature and make up a significant portion of additives employed with the reagent to perform reactions of great synthetic importance. In the present work a series of spectroscopic, calorimetric and kinetic studies demonstrate that nitrogen-based analogues of many common additives have a significantly higher affinity for Sm than the oxygen-based counterparts. In addition, electrochemical experiments show that nitrogen-based ligands significantly enhance the reducing power of SmI2 . Overall, this work demonstrates that the use of nitrogen-based ligands provides a useful alternative approach to enhance the reactivity of reductants based on SmII . PMID- 29024165 TI - Clinical yield of magnetoencephalography distributed source imaging in epilepsy: A comparison with equivalent current dipole method. AB - OBJECTIVE: Source localization of interictal epileptic discharges (IEDs) is clinically useful in the presurgical workup of epilepsy patients. It is usually obtained by equivalent current dipole (ECD) which localizes a point source and is the only inverse solution approved by clinical guidelines. In contrast, magnetic source imaging using distributed methods (dMSI) provides maps of the location and the extent of the generators, but its yield has not been clinically validated. We systematically compared ECD versus dMSI performed using coherent Maximum Entropy on the Mean (cMEM), a method sensitive to the spatial extent of the generators. METHODS: 340 source localizations of IEDs derived from 49 focal epilepsy patients with foci well-defined through intracranial EEG, MRI lesions, and surgery were analyzed. The comparison was based on the assessment of the sublobar concordance with the focus and of the distance between the source and the focus. RESULTS: dMSI sublobar concordance was significantly higher than ECD (81% vs 69%, P < 0.001), especially for extratemporal lobe sources (dMSI = 84%; ECD = 67%, P < 0.001) and for seizure free patients (dMSI = 83%; ECD = 70%, P < 0.001). The median distance from the focus was 4.88 mm for ECD and 3.44 mm for dMSI (P < 0.001). ECD dipoles were often wrongly localized in deep brain regions. CONCLUSIONS: dMSI using cMEM exhibited better accuracy. dMSI also offered the advantage of recovering more realistic maps of the generator, which could be exploited for neuronavigation aimed at targeting invasive EEG and surgical resection. Therefore, dMSI may be preferred to ECD in clinical practice. Hum Brain Mapp 39:218-231, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024168 TI - Electronic-Reconstruction-Enhanced Tunneling Conductance at Terrace Edges of Ultrathin Oxide Films. AB - Quantum mechanical tunneling of electrons across ultrathin insulating oxide barriers has been studied extensively for decades due to its great potential in electronic-device applications. In the few-nanometers-thick epitaxial oxide films, atomic-scale structural imperfections, such as the ubiquitously existed one-unit-cell-high terrace edges, can dramatically affect the tunneling probability and device performance. However, the underlying physics has not been investigated adequately. Here, taking ultrathin BaTiO3 films as a model system, an intrinsic tunneling-conductance enhancement is reported near the terrace edges. Scanning-probe-microscopy results demonstrate the existence of highly conductive regions (tens of nanometers wide) near the terrace edges. First principles calculations suggest that the terrace-edge geometry can trigger an electronic reconstruction, which reduces the effective tunneling barrier width locally. Furthermore, such tunneling-conductance enhancement can be discovered in other transition metal oxides and controlled by surface-termination engineering. The controllable electronic reconstruction can facilitate the implementation of oxide electronic devices and discovery of exotic low-dimensional quantum phases. PMID- 29024167 TI - Imaging spinal cord atrophy in progressive myelopathies: HTLV-I-associated neurological disease (HAM/TSP) and multiple sclerosis (MS). AB - OBJECTIVE: Previous work measures spinal cord thinning in chronic progressive myelopathies, including human T-lymphotropic virus 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis (HAM/TSP) and multiple sclerosis (MS). Quantitative measurements of spinal cord atrophy are important in fully characterizing these and other spinal cord diseases. We aimed to investigate patterns of spinal cord atrophy and correlations with clinical markers. METHODS: Spinal cord cross-sectional area was measured in individuals (24 healthy controls [HCs], 17 asymptomatic carriers of HTLV-1 (AC), 47 HAM/TSP, 74 relapsing remitting MS [RRMS], 17 secondary progressive MS [SPMS], and 40 primary progressive MS [PPMS]) from C1 to T10. Clinical disability scores, viral markers, and immunological parameters were obtained for patients and correlated with representative spinal cord cross-sectional area regions at the C2 to C3, C4 to C5, and T4 to T9 levels. In 2 HAM/TSP patients, spinal cord cross-sectional area was measured over 3 years. RESULTS: All spinal cord regions are thinner in HAM/TSP (56 mm2 [standard deviation, 10], 59 [10], 23 [5]) than in HC (76 [7], 83 [8], 38 [4]) and AC (71 [7], 78 [9], 36 [7]). SPMS (62 [9], 66 [9], 32 [6]) and PPMS (65 [11], 68 [10], 35 [7]) have thinner cervical cords than HC and RRMS (73 [9], 77 [10], 37 [6]). Clinical disability scores (Expanded Disability Status Scale [p = 0.009] and Instituto de Pesquisas de Cananeia [p = 0.03]) and CD8+ T cell frequency (p = 0.04) correlate with T4 to T9 spinal cord cross-sectional area in HAM/TSP. Higher cerebrospinal fluid HTLV-1 proviral load (p = 0.01) was associated with thinner spinal cord cross-sectional area. Both HAM/TSP patients followed longitudinally showed thoracic thinning followed by cervical thinning. INTERPRETATION: Group average spinal cord cross-sectional area in HAM/TSP and progressive MS show spinal cord atrophy. We further hypothesize in HAM/TSP that is possible that neuroglial loss from a thoracic inflammatory process results in anterograde and retrograde degeneration of axons, leading to the temporal progression of thoracic to cervical atrophy described here. Ann Neurol 2017;82:719-728. PMID- 29024164 TI - Understanding the role of steroids in typical and atypical brain development: Advantages of using a "brain in a dish" approach. AB - Steroids have an important role in growth, development, sexual differentiation and reproduction. All four classes of steroids, androgens, oestrogens, progestogens and glucocorticoids, have varying effects on the brain. Androgens and oestrogens are involved in the sexual differentiation of the brain, and also influence cognition. Progestogens such as progesterone and its metabolites have been shown to be involved in neuroprotection, although their protective effects are timing-dependent. Glucocorticoids are linked with stress and memory performance, also in a dose- and time-dependent manner. Importantly, dysfunction in steroid function has been implicated in the pathogenesis of disease. Moreover, regulating steroid-signalling has been suggested as potential therapeutic avenue for the treatment of a number of neurodevelopmental, psychiatric and neurodegenerative disorders. Therefore, clarifying the role of steroids in typical and atypical brain function is essential for understanding typical brain functions, as well as determining their potential use for pharmacological intervention in the atypical brain. However, the majority of studies have thus far have been conducted using animal models, with limited work using native human tissue or cells. Here, we review the effect of steroids in the typical and atypical brain, focusing on the cellular, molecular functions of these molecules determined from animal models, and the therapeutic potential as highlighted by human studies. We further discuss the promise of human-induced pluripotent stem cells, including advantages of using three-dimensional neuronal cultures (organoids) in high-throughput screens, in accelerating our understanding of the role of steroids in the typical brain, and also with respect to their therapeutic value in the understanding and treatment of the atypical brain. PMID- 29024169 TI - How are multifactorial beliefs about the role of genetics and behavior in cancer causation associated with cancer risk cognitions and emotions in the US population? AB - OBJECTIVE: People who believe that cancer has both genetic and behavioral risk factors have more accurate mental models of cancer causation and may be more likely to engage in cancer screening behaviors than people who do not hold such multifactorial causal beliefs. This research explored possible health cognitions and emotions that might produce such differences. METHODS: Using nationally representative cross-sectional data from the US Health Information National Trends Survey (N = 2719), we examined whether endorsing a multifactorial model of cancer causation was associated with perceptions of risk and other cancer-related cognitions and affect. Data were analyzed using linear regression with jackknife variance estimation and procedures to account for the complex survey design and weightings. RESULTS: Bivariate and multivariable analyses indicated that people who endorsed multifactorial beliefs about cancer had higher absolute risk perceptions, lower pessimism about cancer prevention, and higher worry about harm from environmental toxins that could be ingested or that emanate from consumer products (Ps < .05). Bivariate analyses indicated that multifactorial beliefs were also associated with higher feelings of risk, but multivariable analyses suggested that this effect was accounted for by the negative affect associated with reporting a family history of cancer. Multifactorial beliefs were not associated with believing that everything causes cancer or that there are too many cancer recommendations to follow (Ps > .05). CONCLUSION: Holding multifactorial causal beliefs about cancer are associated with a constellation of risk perceptions, health cognitions, and affect that may motivate cancer prevention and detection behavior. PMID- 29024170 TI - Steroids, stress and the gut microbiome-brain axis. AB - It is becoming well established that the gut microbiome has a profound impact on human health and disease. In this review, we explore how steroids can influence the gut microbiota and, in turn, how the gut microbiota can influence hormone levels. Within the context of the gut microbiome-brain axis, we discuss how perturbations in the gut microbiota can alter the stress axis and behaviour. In addition, human studies on the possible role of gut microbiota in depression and anxiety are examined. Finally, we present some of the challenges and important questions that need to be addressed by future research in this exciting new area at the intersection of steroids, stress, gut-brain axis and human health. PMID- 29024171 TI - Demonstration of a long narrow critical isthmus of ischemic ventricular tachycardia by pace mapping. PMID- 29024172 TI - Benzyl Mono-P-Fluorophosphonate and Benzyl Penta-P-Fluorophosphate Anions Are Physiologically Stable Phosphotyrosine Mimetics and Inhibitors of Protein Tyrosine Phosphatases. AB - alpha,alpha-Difluoro-benzyl phosphonates are currently the most popular class of phosphotyrosine mimetics. Structurally derived from the natural substrate phosphotyrosine, they constitute classical bioisosteres and have enabled the development of potent inhibitors of protein tyrosine phosphatases (PTP) and phosphotyrosine recognition sites such as SH2 domains. Being dianions bearing two negative charges, phosphonates, however, do not permeate membranes and thus are often inactive in cells and have not been a successful starting point toward therapeutics, yet. In this work, benzyl phosphonates were modified by replacing phosphorus-bound oxygen atoms with phosphorus-bound fluorine atoms. Surprisingly, mono-P-fluorophosphonates were fully stable under physiological conditions, thus enabling the investigation of their mode of action toward PTP. Three alternative scenarios were tested and mono-P-fluorophosphonates were identified as stable reversible PTP1B inhibitors, despite of the loss of one negative charge and the replacement of one oxygen atom as an H-bond donor by fluorine. In extending this replacement strategy, alpha,alpha-difluorobenzyl penta-P-fluorophosphates were synthesized and found to be novel phosphotyrosine mimetics with improved affinity to the phosphotyrosine binding site of PTP1B. PMID- 29024174 TI - Li2 NH-LiBH4 : a Complex Hydride with Near Ambient Hydrogen Adsorption and Fast Lithium Ion Conduction. AB - Complex hydrides have played important roles in energy storage area. Here a complex hydride made of Li2 NH and LiBH4 was synthesized, which has a structure tentatively indexed using an orthorhombic cell with a space group of Pna21 and lattice parameters of a=10.121, b=6.997, and c=11.457 A. The Li2 NH-LiBH4 sample (in a molar ratio of 1:1) shows excellent hydrogenation kinetics, starting to absorb H2 at 310 K, which is more than 100 K lower than that of pristine Li2 NH. Furthermore, the Li+ ion conductivity of the Li2 NH-LiBH4 sample is about 1.0*10 5 S cm-1 at room temperature, and is higher than that of either Li2 NH or LiBH4 at 373 K. Those unique properties of the Li2 NH-LiBH4 complex render it a promising candidate for hydrogen storage and Li ion conduction. PMID- 29024173 TI - Root transcriptional dynamics induced by beneficial rhizobacteria and microbial immune elicitors reveal signatures of adaptation to mutualists. AB - Below ground, microbe-associated molecular patterns (MAMPs) of root-associated microbiota can trigger costly defenses at the expense of plant growth. However, beneficial rhizobacteria, such as Pseudomonas simiae WCS417, promote plant growth and induce systemic resistance without being warded off by local root immune responses. To investigate early root responses that facilitate WCS417 to exert its plant-beneficial functions, we performed time series RNA-Seq of Arabidopsis roots in response to live WCS417 and compared it with MAMPs flg22417 (from WCS417), flg22Pa (from pathogenic Pseudomonas aeruginosa) and fungal chitin. The MAMP transcriptional responses differed in timing, but displayed a large overlap in gene identity. MAMP-upregulated genes are enriched for genes with functions in immunity, while downregulated genes are enriched for genes related to growth and development. Although 74% of the transcriptional changes inflicted by live WCS417 overlapped with the flg22417 profile, WCS417 actively suppressed more than half of the MAMP-triggered transcriptional responses, possibly to allow the establishment of a mutually beneficial interaction with the host root. Interestingly, the sector of the flg22417 -repressed transcriptional network that is not affected by WCS417 has a strong auxin signature. Using auxin response mutant tir1afb2afb3, we demonstrate a dual role for auxin signaling in finely balancing growth-promoting and defense-eliciting activities of beneficial microbes in plant roots. PMID- 29024175 TI - Mapping the sequence of brain events in response to disgusting food. AB - Warning signals indicating that a food is potentially dangerous may evoke a response that is not limited to the feeling of disgust. We investigated the sequence of brain events in response to visual representations of disgusting food using a dynamic image analysis. Functional MRI was acquired in 30 healthy subjects while they were watching a movie showing disgusting food scenes interspersed with the scenes of appetizing food. Imaging analysis included the identification of the global brain response and the generation of frame-by-frame activation maps at the temporal resolution of 2 s. Robust activations were identified in brain structures conventionally associated with the experience of disgust, but our analysis also captured a variety of other brain elements showing distinct temporal evolutions. The earliest events included transient changes in the orbitofrontal cortex and visual areas, followed by a more durable engagement of the periaqueductal gray, a pivotal element in the mediation of responses to threat. A subsequent core phase was characterized by the activation of subcortical and cortical structures directly concerned not only with the emotional dimension of disgust (e.g., amygdala-hippocampus, insula), but also with the regulation of food intake (e.g., hypothalamus). In a later phase, neural excitement extended to broad cortical areas, the thalamus and cerebellum, and finally to the default mode network that signaled the progressive termination of the evoked response. The response to disgusting food representations is not limited to the emotional domain of disgust, and may sequentially involve a variety of broadly distributed brain networks. Hum Brain Mapp 39:369-380, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024176 TI - Family Instability and Exposure to Violence in the Early Life Course. AB - Family instability has been linked with a host of outcomes across the early life course. This study extends this literature by connecting instability with violence in the community by examining the associations among family structure, family structure change, and secondary exposure to violence during adolescence across diverse segments of the population. Using longitudinal data from the Project on Human Development in Chicago Neighborhoods study, we found that living with a single parent and experiencing family structure changes were associated with secondary exposure to violence. Multiple group models suggest that partner change translated into more exposure for boys than girls. Findings also suggest that family instability may lead to more secondary exposure to violence for African American youth. PMID- 29024178 TI - Familial clustering of oropharyngeal squamous cell carcinoma in the Utah population. AB - BACKGROUND: The main purpose of the current study was to define the familial aggregation of oropharyngeal squamous cell carcinoma (SCC) and risk to relatives of patients with oropharyngeal SCC. METHODS: We conducted a retrospective study utilizing linked population-based genealogy and state cancer registry databases between 1966 and 2012. Relative risks for oropharyngeal SCC and other malignancies among patients with oropharyngeal SCC and their relatives were estimated. RESULTS: Significant excess pairwise relatedness was observed for oropharyngeal SCC diagnosed before age 65 years. Significant excess risk for oropharyngeal SCC was observed for first-degree relatives of patients. Relatives of oropharyngeal SCC patients also demonstrated elevated rates of multiple other malignancies, including both lung and cervical cancers. CONCLUSION: Relatives of patients with oropharyngeal SCC display elevated risks of oropharyngeal, lung, and cervical cancers among others, suggesting a possible shared genetic etiology involving tobacco-related and human papillomavirus (HPV)-related malignancies. PMID- 29024177 TI - Differential regulation of two FLNA transcripts explains some of the phenotypic heterogeneity in the loss-of-function filaminopathies. AB - Loss-of-function mutations in the X-linked gene FLNA can lead to abnormal neuronal migration, vascular and cardiac defects, and congenital intestinal pseudo-obstruction (CIPO), the latter characterized by anomalous intestinal smooth muscle layering. Survival in male hemizygotes for such mutations is dependent on retention of residual FLNA function but it is unclear why a subgroup of males with mutations in the 5' end of the gene can present with CIPO alone. Here, we demonstrate evidence for the presence of two FLNA isoforms differing by 28 residues at the N-terminus initiated at ATG+1 and ATG+82 . A male with CIPO (c.18_19del) exclusively expressed FLNA ATG+82 , implicating the longer protein isoform (ATG+1 ) in smooth muscle development. In contrast, mutations leading to reduction of both isoforms are associated with compound phenotypes affecting the brain, heart, and intestine. RNA-seq data revealed three distinct transcription start sites, two of which produce a protein isoform utilizing ATG+1 while the third utilizes ATG+82 . Transcripts sponsoring translational initiation at ATG+1 predominate in intestinal smooth muscle, and are more abundant compared with the level measured in fibroblasts. Together these observations describe a new mechanism of tissue-specific regulation of FLNA that could reflect the differing mechanical requirements of these cell types during development. PMID- 29024179 TI - CaB2 S4 O16 : A Borosulfate Exhibiting a New Structure Type with Phyllosilicate Analogue Topology. AB - The reaction of Ca(CO3 ) with H3 BO3 in oleum (20 % SO3 ) yielded colorless single-crystals of CaB2 S4 O16 (monoclinic, P21 /c, a=5.5188(2), b=15.1288(6), c=13.2660(6) A, beta=92.88(1) degrees , V=1106.22(8) A3 ). X-ray single-crystal structure analysis revealed a phyllosilicate-analogue anionic sub-structure, forming 2D infinite anionic layers, which exhibit an unprecedented arrangement of condensed twelve-membered (zwolfer) and four-membered (vierer) rings of corner shared (SO4 ) and (BO4 ) tetrahedra. Charge compensation is achieved by Ca2+ cations, residing exclusively above the centers of the twelve-membered rings. DFT investigations on the solid-state structure corroborate the experimental findings and allow for a detailed valuation of charge distribution within the anionic network and an assignment of vibrational frequencies. PMID- 29024180 TI - Modeling plant composition as community continua in a forest landscape with LiDAR and hyperspectral remote sensing. AB - In light of the need to operationalize the mapping of forest composition at landscape scales, this study uses multi-scale nested vegetation sampling in conjunction with LiDAR-hyperspectral remotely sensed data from the G-LiHT airborne sensor to map vascular plant compositional turnover in a compositionally and structurally complex North Carolina Piedmont forest. Reflecting a shift in emphasis from remotely sensing individual crowns to detecting aggregate optical structural properties of forest stands, predictive maps reflect the composition of entire vascular plant communities, inclusive of those species smaller than the resolution of the remotely sensed imagery, intertwined with proximate taxa, or otherwise obscured from optical sensors by dense upper canopies. Stand-scale vascular plant composition is modeled as community continua: where discrete community-unit classes at different compositional resolutions provide interpretable context for continuous gradient maps that depict n-dimensional compositional complexity as a single, consistent RGB color combination. In total, derived remotely sensed predictors explain 71%, 54%, and 48% of the variation in the first three components of vascular plant composition, respectively. Among all remotely sensed environmental gradients, topography derived from LiDAR ground returns, forest structure estimated from LiDAR all returns, and morphological biochemical traits determined from hyperspectral imagery each significantly correspond to the three primary axes of floristic composition in the study site. Results confirm the complementarity of LiDAR and hyperspectral sensors for modeling the environmental gradients constraining landscape turnover in vascular plant composition and hold promise for predictive mapping applications spanning local land management to global ecosystem modeling. PMID- 29024181 TI - Does the Risk Outweigh the Benefits? Adolescent Responses to Completing Health Surveys. AB - The aim of this study is to describe the self-reported experiences of adolescents in population-based samples when completing health-related surveys on topics with varying potential for evoking distress. Survey data were collected in three school-based studies of bullying behaviors (N = 1,771, 12-14 years), alcohol use (N = 823, 12, 15, and 17 years), and electronic image sharing (N = 274, 13 years). Between 5% and 15% of respondents reported being upset at survey completion, but at most 1.4% were entirely negative in their evaluation. Age was not associated with being upset, but younger adolescents were more likely to see benefit in participation. Although concurrent mental health symptoms increased the risk of being upset, this was mostly mitigated by perceived benefits from participation. PMID- 29024182 TI - Large differences in proportions of harmful and benign amino acid substitutions between proteins and diseases. PMID- 29024183 TI - Seventh International AFMBioMed Conference on AFM in Life Sciences and Medicine, April 11 to 15, 2016, Porto, Portugal. PMID- 29024184 TI - The use of dipyrone (metamizol) as an analgesic in children: What is the evidence? A review. AB - Dipyrone has analgesic, spasmolytic, and antipyretic effects and is used to treat pain. Due to a possible risk of agranulocytosis with the use of dipyrone, it has been banned in a number of countries. The most commonly used data for the use of dipyrone are related to adults. Information relating to the use of dipyrone in children is scarce. Given the potential added value of dipyrone in the treatment of pain, a review of the literature was conducted to obtain more insight into the analgesic efficacy of dipyrone in children as well as the safety of dipyrone in terms of adverse events. A literature search was done for original articles (in English, German, or Spanish language) which met the following criteria: the use of dipyrone for pain and children up to the age of 17 years old. All titles and abstracts retrieved were reviewed, independently, by two of the authors, for their suitability for inclusion. The references of the selected articles were also checked for additional relevant papers. The publications were categorized into case reports, observational studies, or randomized controlled trials. To assess the methodological quality of the studies, the Jadad score was used. In the limited available data, the analgesic efficacy of intravenous dipyrone appears similar to that of intravenous paracetamol. Evidence is lacking to support the claim that dipyrone is equivalent or even superior to Non-Steroid Anti-Inflammatory-Drugs in pediatric pain. While the absolute risk of agranulocytosis with dipyrone in children, based on available literature, cannot be determined, case reports suggest that this risk is not negligible. PMID- 29024185 TI - Development of a tailored work-related support intervention for gastrointestinal cancer patients. AB - Aim is the development of a work-related support intervention, tailored to the severity of work-related problems of patients diagnosed with gastrointestinal (GI) cancer treated with curative intent. Two methods were used: (1) Work-related problems were identified from the literature and submitted to an expert panel during a modified Delphi study. Experts allocated work-related problems into degrees of severity: mild, severe or complex. In addition, experts indicated which health care professional should provide the tailored support: (2) These outcomes were combined with existing interventions to design the tailored intervention. Semi-structured interviews with experts were conducted to assess whether the intervention was comprehensive, and feasible for daily practice. A decision diagram measuring severity of work-related problems was developed based on the modified Delphi study with 44 experts, encompassing social, disease and occupational problems. Based on the degree of severity, support was provided by: an oncological nurse (mild), oncological occupational physician (severe) or multidisciplinary team (complex). The intervention encompassed three individual meetings in the clinical setting and was considered comprehensive and feasible by 12 experts. The intervention is innovative in combining oncological and occupational care in the clinic and being tailored to the needs of GI cancer patients with specific work-related problems. PMID- 29024186 TI - Fear of cancer recurrence in oral and oropharyngeal cancer patients: An investigation of the clinical encounter. AB - Fear of cancer recurrence (FCR) is common among individuals treated for cancer. Explorations of how this fear is expressed within an oncology setting and responded to are currently lacking. The aim was to investigate how head and neck cancer survivors in follow-up consultations express FCR, investigate how a healthcare professional addresses recurrence fears, and examine how survivors experience this interaction. We recorded the follow-up consultations of those participants who have reported FCR as a concern on the Patient Concerns Inventory. We also conducted a follow-up phone interview with the participants. We analysed the transcripts using thematic analysis. Five men and six women were recruited, aged 55-87 (mean age = 64). Follow-up consultation analyses revealed that the consultant used "normalising FCR," "reassurance," and "offer of referral to a counsellor." Interviews revealed themes around how they coped with FCR, relevance of personal history on FCR, and the impact of feeling gratitude towards the consultant on expression of FCR. Analyses indicate that patients may feel reluctant to raise their FCR with their clinician for fear of appearing "ungrateful" or of damaging a relationship that is held in high esteem. Findings indicate the initiation of FCR with patients can be beneficial for patient support. PMID- 29024187 TI - Diversity of oxytocin neurons: beyond magno- and parvocellular cell types? AB - The hypothalamic neuropeptide oxytocin (OT), which is evolutionarily conserved among different species throughout the animal kingdom, is a key modulator of a variety of socio-emotional behaviors such as fear, trust and empathy. OT cells in the mammalian hypothalamus have been traditionally divided into two distinct types - magnocellular (magnOT) and parvocellular (parvOT) or preautonomic neurons. This distinction is based on OT cell sizes and shapes, projections, electrophysiological activity and functions. Indeed, while neuroendocrine magnOT neurons are known to primarily project their axons to the posterior pituitary and to a number of forebrain regions, non-neuroendocrine parvOT neurons have been seen as the main source of OT innervation of the brainstem and spinal cord to control autonomic functions and pain perception. However, very recent findings demonstrated distinct genetic profiles in OT neurons, allowing discrimination of at least four types of cells expressing OT. Furthermore, unexpected axonal projections of parvOT neurons to the forebrain and magnOT neurons to the midbrain have been newly reported. In this review, we focus on the detailed analysis of methods of distinction between OT cell types, in- and output sites, morphology as well as on the direct connectivity between OT neurons and its physiological significance. At the end, we propose a hypothesis that the central OT system is composed of more than just two OT cell types, which should be further verified by the application of available genetic and anatomical techniques. This article is protected by copyright. All rights reserved. PMID- 29024188 TI - The impact of sleep deprivation on visual perspective taking. AB - Total sleep deprivation (TSD) is known to alter cognitive processes. Surprisingly little attention has been paid to its impact on social cognition. Here, we investigated whether TSD alters levels-1 and -2 visual perspective-taking abilities, i.e. the capacity to infer (a) what can be seen and (b) how it is seen from another person's visual perspective, respectively. Participants completed levels-1 and -2 visual perspective-taking tasks after a night of sleep and after a night of TSD. In these tasks, participants had to take their own (self trials) or someone else's (other trials) visual perspective in trials where both perspectives were either the same (consistent trials) or different (inconsistent trials). An instruction preceding each trial indicated the perspective to take (i.e. the relevant perspective). Results show that TSD globally deteriorates social performance. In the level-1 task, TSD affects the selection of relevant over irrelevant perspectives. In the level-2 task, the effect of TSD cannot be unequivocally explained. This implies that visual perspective taking should be viewed as partially state-dependent, rather than a wholly static trait-like characteristic. PMID- 29024189 TI - Intron length polymorphism of beta-tubulin genes of Aegilops biuncialis Vis. AB - Intron-specific DNA polymorphism is present among plant beta-tubulin gene family members and is considered to be one of the molecular markers based on the difference of tubulin introns length assayed both separately (TBP: 1st intron) or in combination (h-TBP: 1st and 2nd introns). These two approaches are possibly useful for wheat breeding programs, since TBP and h-TBP help to differentiate between the accessions of Aegilops biuncialis Vis., a wild relative of wheat. PCR derived polymorphic fragments were resolved by PAGE electrophoresis. The length of amplicons varied significantly (395-3900 bp for TBP and 466-3440 bp for h TBP), while the numbers of polymorphic bands were 21 for TBP and 23 for h-TBP, respectively. PIC mean value was circa 0.3. Dendrograms constructed on the basis of the Nei and Li coefficient with the high bootstrap support reveal a similar order of hierarchy for the samples analyzed using both methods. Thus, both techniques uncover DNA polymorphism level sufficiently high to distinguish different accessions of Ae. biuncialis Vis. PMID- 29024190 TI - Naphthyl Thio- and Carba-xylopyranosides for Exploration of the Active Site of beta-1,4-Galactosyltransferase 7 (beta4GalT7). AB - Xyloside analogues with substitution of the endocyclic oxygen atom by sulfur or carbon were investigated as substrates for beta-1,4-galactosyltransferase 7 (beta4GalT7), a key enzyme in the biosynthesis of glycosaminoglycan chains. The analogues with an endocyclic sulfur atom proved to be excellent substrates for beta4GalT7, and were galactosylated approximately fifteen times more efficiently than the corresponding xyloside. The 5a-carba-beta-xylopyranoside in the d configuration proved to be a good substrate for beta4GalT7, whereas the enantiomer in the l-configuration showed no activity. Further investigations by X ray crystallography, NMR spectroscopy, and molecular modeling provided a rationale for the pronounced activity of the sulfur analogues. Favorable pi-pi interactions between the 2-naphthyl moiety and a tyrosine side chain of the enzyme were observed for the thio analogues, which open up for the design of efficient GAG primers and inhibitors. PMID- 29024191 TI - Non-specific pleuritis in patients with active malignancy. AB - BACKGROUND AND OBJECTIVE: Pleuroscopy is the test of choice for patients with suspected malignant pleural effusion and negative cytology. Biopsies negative for malignancy are frequently attributed to non-specific pleuritis, which poses a dilemma in patients with a known active malignancy, raising concern for a false negative result. Our primary objective was to determine the outcomes of patients with active malignancy who had a non-malignant diagnosis on pleuroscopy. METHODS: Retrospective review of all pleuroscopy cases from January 2005 to January 2015 at our institution was conducted. Biopsies were categorized by histopathology as malignant, eosinophilic or non-specific pleuritis. Malignant histopathology was considered a true positive. Eosinophilic or non-specific pleuritis was categorized as malignant, if malignancy was later identified during follow-up, or chemotherapy induced, possible radiation induced, other paramalignant, other benign or idiopathic. RESULTS: Of the 199 pleuroscopy cases reviewed, 172 (86%) had a history of active malignancy. On histopathology, 73 (42%) had malignancy, 9 (5%) had eosinophilic pleuritis and 90 (52%) had non-specific pleuritis. Three patients with non-specific pleuritis were diagnosed with malignancy at follow-up. Pleuritis in 24 patients was chemotherapy induced, 27 were possibly radiation induced, 11 were other paramalignant and 3 were other benign. Idiopathic pleuritis was diagnosed in 31 patients. Patients were monitored for a mean of 23 +/- 11 months. CONCLUSION: The prevalence of malignant pleural disease was lower than expected for our patient population. Patients with no malignancy on histopathology were most likely to have non-specific pleuritis, a cause for which was identified in a majority of patients after clinical review. PMID- 29024192 TI - Association of schizotypy with striatocortical functional connectivity and its asymmetry in healthy adults. AB - Altered striatocortical functional connectivity has been suggested to be a trait marker of schizophrenia spectrum disorders, including schizotypal personality. In the present study, we examined the association between schizotypal personality traits and striatocortical functional connectivity in a sample of healthy adults. The German version of the Schizotypal Personality Questionnaire was obtained from N = 111 participants recruited from the general public. Resting-state functional magnetic resonance imaging scans were acquired at 3T. Six striatal seed regions in each hemisphere were defined and striatocortical resting-state functional connectivity (rsFC) as well as its lateralization indices was calculated. Regression analysis showed that schizotypy scores, especially from the positive dimension, were positively correlated with rsFC between ventral striatum and frontal cortex and negatively associated with rsFC between dorsal striatum and posterior cingulate. No significant associations were found between negative dimension schizotypy and striatocortical rsFC. We also found positive correlations between schizotypy total scores and lateralization index of right dorsal caudate and right rostral putamen. In conclusion, the present study extends previous evidence of altered striatocortical rsFC in the schizophrenia spectrum. The observed associations resemble in part the alterations observed in psychotic patients and their relatives, providing support for dimensionality from schizotypal personality to the clinical disorder. Hum Brain Mapp 39:288-299, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024193 TI - Interbrain phase synchronization during turn-taking verbal interaction-a hyperscanning study using simultaneous EEG/MEG. AB - Recently, neurophysiological findings about social interaction have been investigated widely, and hardware has been developed that can measure multiple subjects' brain activities simultaneously. These hyperscanning studies have enabled us to discover new and important evidences of interbrain interactions. Yet, very little is known about verbal interaction without any visual input. Therefore, we conducted a new hyperscanning study based on verbal, interbrain turn-taking interaction using simultaneous EEG/MEG, which measures rapidly changing brain activities. To establish turn-taking verbal interactions between a pair of subjects, we set up two EEG/MEG systems (19 and 146 channels of EEG and MEG, respectively) located ~100 miles apart. Subjects engaged in verbal communication via condenser microphones and magnetic-compatible earphones, and a network time protocol synchronized the two systems. Ten subjects participated in this experiment and performed verbal interaction and noninteraction tasks separately. We found significant oscillations in EEG alpha and MEG alpha/gamma bands in several brain regions for all subjects. Furthermore, we estimated phase synchronization between two brains using the weighted phase lag index and found statistically significant synchronization in EEG and MEG data. Our novel paradigm and neurophysiological findings may foster a basic understanding of the functional mechanisms involved in human social interactions. Hum Brain Mapp 39:171-188, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024194 TI - Disrupted cortico-limbic connectivity during reward processing in remitted bipolar I disorder. AB - OBJECTIVES: Bipolar disorder (BD) is associated with elevated reward sensitivity and persistent positive affect, yet the neural mechanisms underlying these patterns are not well understood. In the present study, we examined putative disruptions in communication within a well-known cortico-limbic reward circuit during reward processing as a potential contributing mechanism to these symptoms. METHODS: The present investigation employed a within- and between-subjects design utilizing a monetary and social incentive delay task among adults with bipolar disorder type I (BD; N = 24) and a healthy non-psychiatric control group (HC; N = 25) during functional magnetic resonance imaging (fMRI). Participants in the BD group were remitted at the time of testing. RESULTS: Functional connectivity analyses revealed increased connectivity between the ventral striatum (VS) seed region and orbitofrontal cortex (OFC) as well as the amygdala during processing of reward receipt in the BD group. After omission of expected rewards, the BD group showed decreased functional connectivity between the VS and a medial frontopolar cortex (mFPC) region associated with consideration of behavioral alternatives. Follow-up analyses within the BD group showed that increased VS-OFC connectivity after reward receipt, and decreased VS-mFPC connected after reward omission, were associated with higher levels of subthreshold mania symptoms. CONCLUSIONS: Results point toward potential mechanisms implicated in elevated reward sensitivity in BD. Enhanced VS-OFC connectivity after reward receipt may be involved in elevated valuation of rewards whereas blunted VS-mFPC connectivity after reward omission may reflect a failure to consider behavioral alternatives to reward pursuit. PMID- 29024196 TI - Pelvic floor muscle assessment on three- and four-dimensional transperineal ultrasound in women with ovarian endometriosis with or without retroperitoneal infiltration: a step towards complete functional assessment. AB - OBJECTIVES: Previous studies comparing women with deep infiltrating endometriosis (DIE) and healthy controls have underlined an association between pelvic floor muscle (PFM) hypertonic dysfunction and deep lesions. The aim of this study was to compare the morphometry of PFM in women affected by ovarian endometriosis with DIE vs those without DIE in order to assess the impact of retroperitoneal infiltration by the disease on PFM function. METHODS: This was a prospective study conducted between March 2015 and December 2016 on symptomatic women with a clinical and sonographic diagnosis of ovarian endometriosis with or without DIE, scheduled for laparoscopic surgery. We excluded patients with current or previous pregnancy, previous surgery for deep endometriosis, other causes of chronic pelvic pain or congenital or acquired abnormalities of pelvic floor anatomy. Three- and four-dimensional transperineal ultrasound was performed to evaluate PFM morphometry and assess levator hiatal area (LHA) and diameters at rest, during PFM contraction and during Valsalva maneuver. All volumes were analyzed offline by an investigator blinded to the clinical data. RESULTS: One hundred and fourteen patients with ovarian endometriosis were enrolled in the study, 75 with DIE and 39 without DIE. The diagnosis of endometriosis was confirmed by histological examination in all patients. Compared with women without DIE, women with DIE showed a smaller LHA at rest, during contraction and during Valsalva maneuver (P = 0.03, P = 0.03 and P = 0.02, respectively) and a smaller reduction in LHA during PFM contraction (P = 0.04). CONCLUSIONS: Women with ovarian endometriosis who were affected by DIE showed smaller hiatal dimensions than did women without DIE. Considering that PFM dysfunction in patients with DIE could cause pain symptoms and pelvic organ dysfunction, transperineal ultrasound could allow a more complete functional assessment and tailored therapy. Copyright (c) 2017 ISUOG. Published by John Wiley & Sons Ltd. PMID- 29024198 TI - Mucocele-like lesions diagnosed on breast core biopsy: Low risk of upgrade and subsequent carcinoma. AB - Mucocele-like lesions of the breast diagnosed on core biopsy are usually excised to exclude the possibility of partial sampling of an invasive mucinous carcinoma. The goal of this study was to correlate the pathologic and radiologic features of mucocele-like lesions to determine if excision is mandatory. Over a 16 year period we identified 32 patients with mucocele-like lesions diagnosed on 27 (84%) stereotactic and 5 (16%) ultrasound-guided core biopsies. The indications for core biopsy were: calcifications in 24 (75%), a mass in 7 (22%), and a mass with calcifications in 1 (3%). There were 22 (69%) mucocele-like lesions without atypia and 10 (31%) with atypical ductal hyperplasia or detached groups of atypical cells. Of the 22 mucocele-like lesions without atypia, 19 (86%) were excised: 15/19 (79%) were benign, 3/19 (16%) had atypical ductal hyperplasia and 1/19 (5%) had ductal carcinoma in situ. None of the patients with mucocele-like lesions without atypia were upgraded to invasive carcinoma. The single patient who was upgraded to low-grade ductal carcinoma in situ had a history of ductal carcinoma in situ in the same breast. Of the 10 patients with mucocele-like lesions with atypia, 9 (90%) were excised: 5/9 (56%) were benign, 1/9 (11%) had atypical ductal hyperplasia and 3/9 (33%) had invasive carcinoma. Of the patients with mucocele-like lesions with atypia who were upgraded to invasive carcinoma, one had a BIRADS 5 mass and discordant pathology and one had a history of Hodgkin lymphoma and mantle radiation. There were 24 patients with mucocele-like lesions with or without atypia who were not upgraded on excision, and none developed breast cancer after a median of 51 months (range 7-192). These findings indicate that mucocele-like lesions without atypia are unlikely to be upgraded on excision and are associated with a low risk for the subsequent development of carcinoma. PMID- 29024197 TI - Multifaceted brain networks reconfiguration in disorders of consciousness uncovered by co-activation patterns. AB - INTRODUCTION: Given that recent research has shown that functional connectivity is not a static phenomenon, we aim to investigate the dynamic properties of the default mode network's (DMN) connectivity in patients with disorders of consciousness. METHODS: Resting-state fMRI volumes of a convenience sample of 17 patients in unresponsive wakefulness syndrome (UWS) and controls were reduced to a spatiotemporal point process by selecting critical time points in the posterior cingulate cortex (PCC). Spatial clustering was performed on the extracted PCC time frames to obtain 8 different co-activation patterns (CAPs). We investigated spatial connectivity patterns positively and negatively correlated with PCC using both CAPs and standard stationary method. We calculated CAPs occurrences and the total number of frames. RESULTS: Compared to controls, patients showed (i) decreased within-network positive correlations and between-network negative correlations, (ii) emergence of "pathological" within-network negative correlations and between-network positive correlations (better defined with CAPs), and (iii) "pathological" increases in within-network positive correlations and between-network negative correlations (only detectable using CAPs). Patients showed decreased occurrence of DMN-like CAPs (1-2) compared to controls. No between-group differences were observed in the total number of frames CONCLUSION: CAPs reveal at a more fine-grained level the multifaceted spatial connectivity reconfiguration following the DMN disruption in UWS patients, which is more complex than previously thought and suggests alternative anatomical substrates for consciousness. BOLD fluctuations do not seem to differ between patients and controls, suggesting that BOLD response represents an intrinsic feature of the signal, and therefore that spatial configuration is more important for consciousness than BOLD activation itself. Hum Brain Mapp 39:89-103, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024195 TI - Identification of zinc finger protein of the cerebellum 5 as a survival factor of prostate and colorectal cancer cells. AB - Identification of specific drug targets is very important for cancer therapy. We recently identified zinc finger protein of the cerebellum 5 (ZIC5) as a factor that promotes melanoma aggressiveness by platelet-derived growth factor D (PDGFD) expression. However, its roles in other cancer types remain largely unknown. Here we determined the roles of ZIC5 in prostate cancer (PCa) and colorectal cancer (CRC) cells. Results showed that ZIC5 was highly expressed in CRC and dedifferentiated PCa tissues, whereas little expression was observed in relevant normal tissues. Knockdown of ZIC5 decreased proliferation of several PCa and CRC cell lines with induction of cell death. ZIC5 knockdown significantly suppressed PDGFD expression transcriptionally, and PDGFD suppression also decreased proliferation of PCa and CRC cell lines. In addition, suppression of ZIC5 or PDGFD expression decreased levels of phosphorylated focal adhesion kinase (FAK) and signal transducer and activator of transcription 3 (STAT3) which are associated with PCa and CRC aggressiveness. Furthermore, knockdown of ZIC5 or PDGFD enhanced death of PCa and CRC cells induced by the anti-cancer drugs docetaxel or oxaliplatin, respectively. These results suggest that ZIC5 and PDGFD promote survival of PCa and CRC cells by enhancing FAK and STAT3 activity, and that the roles of ZIC5 are consistent across several cancer types. PMID- 29024200 TI - Novel automated point collection software facilitates rapid, high-density electroanatomical mapping with multiple catheter types. AB - INTRODUCTION: Manual, point-by-point electroanatomical mapping requires the operator to directly evaluate each point during map construction. Consequently, point collection can be a slow process. An automated 3D mapping system was developed with the goal of improving key mapping metrics, including map completion time and point density. METHODS: Automated 3D mapping software that includes morphology and cycle length discrimination functions for surface and intracardiac electrograms was developed. In five swine, electroanatomical maps (EAMs) of all four cardiac chambers were generated in sinus rhythm. Four catheters were used: two different four-pole ablation catheters, a 20-pole circular catheter, and a 64-pole basket catheter. Automated and manual 3D mapping were compared for 12 different catheter-chamber combinations (paired sets of 10 maps for most combinations, for a total of 156 maps). RESULTS: Automated 3D mapping produced more than twofold increase in the number of points per map, as compared with manual 3D mapping (P <=0.007 for all catheter-chamber combinations tested). Automated 3D mapping also reduced map completion time by an average of 29% (P < 0.05 for all comparisons). The amount of manual editing of the maps acquired with automated 3D mapping was minimal. CONCLUSION: Automated 3D mapping with the open-platform mapping software described in this study is significantly faster than manual, point-by-point 3D mapping. This resulted in shorter mapping time and higher point density. The morphology discrimination functions effectively excluded ectopic beats during mapping in sinus rhythm and allowed for rapid mapping of intermittent ventricular ectopic beats. PMID- 29024199 TI - Critical care pharmacy workforce: UK deployment and characteristics in 2015. AB - OBJECTIVE: Clinical pharmacists reduce medication errors and optimize the use of medication in critically ill patients, although actual staffing level and deployment of UK pharmacists is unknown. The primary aim was to investigate the UK deployment of the clinical pharmacy workforce in critical care and compare this with published standards. METHODS: An electronic data entry tool was created and distributed for UK critical care pharmacy services to record their critical care workforce deployment data. KEY FINDINGS: Data were received for 279 critical care units in 171 organizations. Clinical pharmacist input was identified for 98.6% of critical care units. The median weekday pharmacist input to critical care was 0.045 whole time equivalents per Level 3 (ICU) bed with significant interregional variation. Weekend services were sparse. Pharmacists spent 24.5% of time on the multidisciplinary team ward round, 58.5% of time on independent patient review and 17% of time on other critical care professional support activities. There is significant variation in staffing levels when services are stratified by highest level of competence of critical care pharmacist within an organization (P = 0.03), with significant differences in time spent on the multi disciplinary ward round (P = 0.010) and on other critical care activities (P = 0.009), but not on independent patient review. CONCLUSIONS: Investment in pharmacy services is required to improve access to clinical pharmacy expertise at weekends, on MDT ward rounds and for other critical care activities. PMID- 29024201 TI - Enantioseparation of racecadotril using polysaccharide-type chiral stationary phases in polar organic mode. AB - Enantioseparation of the antidiarrheal drug, racecadotril, was investigated by liquid chromatography using polysaccharide-type chiral stationary phases in polar organic mode. The enantiodiscrimininating properties of 4 different chiral columns (Chiralpak AD, Chiralcel OD, Chiralpak AS, Chiralcel OJ) with 5 different solvents (methanol, ethanol, 1-propanol, 2-propanol, and acetonitrile) at 5 different temperatures (5-40 degrees C) were investigated. Apart from Chiralpak AS column the other 3 columns showed significant enantioseparation capabilities. Among the tested mobile phases, alcohol type solvents were superior over acetonitrile, and significant differences in enantioselective performance of the selector were observed depending on the type of alcohol employed. Van't Hoff analysis was used for calculation of thermodynamic parameters which revealed that enantioseparation is mainly enthalpy controlled; however, enthropic control was also observed. Enantiopure standard was used to determine the enantiomer elution order, revealing chiral selector-and mobile-phase dependent reversal of enantiomer elution order. Using the optimized method (Chiralcel OJ stationary phase, thermostated at 10 degrees C, 100% methanol, flow rate: 0.6 mL/min) baseline separation of racecadotril enantiomers (resolution = 3.00 +/- 0.02) was achieved, with the R-enantiomer eluting first. The method was validated according to the ICH guidelines, and its application was tested on capsule and granules containing the racemic mixture of the drug. PMID- 29024202 TI - Reluctance to fail nursing students in practice-implications for nurse managers. PMID- 29024203 TI - Megestrol acetate-caused adrenal insufficiency and delayed puberty in a male adolescent with spinal tumour. PMID- 29024205 TI - The Intact(r) breast lesion excision system as a therapeutic device for selected benign breast lesions. AB - The aim of this paper is to evaluate our Unit's initial experience using the Intact breast lesion excision system as a therapeutic excision option for benign or borderline breast lesions, which otherwise would entail open operative excision. The study includes the first 111 patients who underwent therapeutic excision with the intact radiofrequency system between December 2012 and May 2016 performed at the Meirav Center for Breast Health, at the Chaim Sheba Medical Center, Ramat Gan Israel. The indications for the procedure included those patients who have benign, or atypical high risk lesions following a previous core needle biospy (CNB) who would have normally undergone conventional excision biopsy. After reviewing each case separately, we found that the use of the BLES system as a treatment device permitted the avoidance of operations that would have been otherwise indicated, in 98 cases of the total 111 in the cohort (88.3%). Thirteen cases eventually had to undergo surgical excision. In eight cases pathology was upgraded from the initial CNB to invasive or noninvasive carcinoma. Although the INTACT sysytem is most commonly used as an alternative biopsy technique for its diagnostic capabilities, this study assessed its clinical role as a definitive therapeutic excisional modality in selected cases of benign breast disease. It proved valuable in the majority of cases with avoidance of surgery where it was traditionally indicated, (98/111, 88.3%) and as definitive fibroadenoma management in a further 28 patients. PMID- 29024206 TI - The prevalence problem in the era of human papillomavirus screening. PMID- 29024204 TI - Establishment of a dog primary prostate cancer organoid using the urine cancer stem cells. AB - Dog spontaneously develop prostate cancer (PC) like humans. Because most dogs with PC have a poor prognosis, they could be used as a translational model for advanced PC in humans. Stem cell-derived 3-D organoid culture could recapitulate organ structures and physiology. Using patient tissues, a human PC organoid culture system was established. Recent study has shown that urine cells also possess the characteristic of stem cells. However, urine cell-derived PC organoids have never been produced. Therefore, we generated PC organoids using the dog urine samples. Urine organoids were successfully generated from each dog with PC. Each organoid showed cystic structures and resembled the epithelial structures of original tissues. Expression of an epithelial cell marker, E cadherin, and a myofibloblast marker, alpha-SMA, was observed in the urine organoids. The organoids also expressed a basal cell marker, CK5, and a luminal cell marker, CK8. CD49f-sorted basal cell organoids rapidly grew compared with CD24-sorted luminal cell organoids. The population of CD44-positive cells was the highest in both organoids and the original urine cells. Tumors were successfully formed with the injection of the organoids into immunodeficient mice. Treatment with a microtubule inhibitor, docetaxel, but not a cyclooxygenase inhibitor, piroxicam, and an mTOR inhibitor, rapamycin, decreased the cell viability of organoids. Treatment with a Hedgehog signal inhibitor, GANT61, increased the radiosensitivity in the organoids. These findings revealed that PC organoids using urine might become a useful tool for investigating the mechanisms of the pathogenesis and treatment of PC in dogs. PMID- 29024207 TI - Maternal vaccination as a Salmonella Typhimurium reduction strategy on pig farms. AB - AIMS: The control of Salmonella in pig production is necessary for public and animal health, and vaccination was evaluated as a strategy to decrease pig prevalence. METHODS AND RESULTS: The study examined the efficacy of a live Salmonella Typhimurium vaccine, administered to sows on eight commercial farrow to-finish herds experiencing clinical salmonellosis or Salmonella carriage associated with S. Typhimurium or its monophasic variants. Results of longitudinal Salmonella sampling were compared against eight similarly selected and studied control farms. At the last visit (~14 months after the start of vaccination), when all finishing stock had been born to vaccinated sows, both faecal shedding and environmental prevalence of Salmonella substantially declined on the majority of vaccinated farms in comparison to the controls. A higher proportion of vaccine farms resolved clinical salmonellosis than controls. However, Salmonella counts in positive faeces samples were similar between nonvaccinated and vaccinated herds. CONCLUSIONS: The results suggest that maternal vaccination is a suitable option for a Salmonella Typhimurium reduction strategy in farrow-to-finish pig herds. SIGNIFICANCE AND IMPACT OF THE STUDY: Salmonella vaccines have the potential to reduce the prevalence of Salmonella in pigs and result in a reduction of human cases attributed to pork. PMID- 29024209 TI - Erratum. PMID- 29024208 TI - Does site of cord insertion increase risk of adverse outcome, twin-to-twin transfusion syndrome and discordant growth in monochorionic twin pregnancy? AB - OBJECTIVES: It is not currently well known to what extent the sites of cord insertion influence the risk of complicated outcome in monochorionic twin pregnancy. The objectives of this study were to examine whether the sites of cord insertion, as determined on prenatal ultrasound examination, affect the risks of adverse outcome, twin-to-twin transfusion syndrome (TTTS) and discordant growth, and whether discordance in insertion sites or velamentous insertion in one or both twins best predicts risk. METHODS: This was a retrospective cohort study of monochorionic diamniotic twin pregnancies followed from the first trimester. The cohort was divided into three groups of increasing discordance in cord insertion sites: concordant (normal-normal; marginal-marginal; velamentous-velamentous), intermediate (normal-marginal; marginal-velamentous) and discordant (normal velamentous). Adverse outcome was defined as fetal or neonatal loss or birth prior to 32 weeks. The associations of adverse outcome, TTTS and discordant growth were assessed using logistic regression analysis with the following predictors: the three groups of insertion sites and velamentous insertion in one or both twins. RESULTS: Included in the analysis were 518 pregnancies. On univariate analysis, both discordant and velamentous insertions in one twin increased the risk of adverse outcome, TTTS and discordant growth. Intermediate insertion only increased the risk of discordant growth. Velamentous insertion in both twins increased the risk of adverse outcome and TTTS, but not of discordant growth. Multivariate logistic regression analysis showed velamentous insertion in one or both twins to independently predict adverse outcome and TTTS. For discordant growth, both intermediate/discordant and velamentous cord insertion in one twin were independent predictors. CONCLUSIONS: Velamentous cord insertion in one or both twins increases the risk of adverse outcome and TTTS, irrespective of discordance in the insertion sites, whereas the risk of discordant growth is determined by both discordance in insertion sites and velamentous cord insertion in one twin. Copyright (c) 2017 ISUOG. Published by John Wiley & Sons Ltd. PMID- 29024210 TI - A case of anaplastic lymphoma kinase-positive renal cell carcinoma coincident with Hodgkin lymphoma. AB - We report a case of ALK-positive renal cell carcinoma coincident with Hodgkin lymphoma. The patient was a 19 year-old-girl without sickle cell trait. The right renal tumor was discovered concomitantly with Hodgkin lymphoma (HL). After chemotherapy for HL, right nephrectomy was performed. Microscopically, the tumor showed a solid and focally pseudo-papillary growth pattern studded with tubular structures. Most tumor cells were small bland eosinophilic cells, but rhabdoid cells, vacuolated cells, pleomorphic multinucleated giant cells were also admixed. The variety of growth patterns and cell features led us to speculate a possibility of ALK-positive renal cell carcinoma (ALK + RCC). ALK was immunohistochemically positive, and fluorescence in situ hybridization analysis detected a split signal of the ALK gene. We examined previously reported partner genes (STRN, TPM3, VCL and EML4) by RT-PCR, but fusion gene was not detected. RCC showing solid or cribriform growth patterns with vacuolated cells with intracytoplamic lumina, rhabdoid cells, and mucus production indicates the possibility of ALK + RCC. PMID- 29024211 TI - The impact of holiday clubs on household food insecurity-A pilot study. AB - This research investigates whether holiday clubs have the potential to reduce food insecurity among households in the United Kingdom. We survey parents (n = 38) of children attending seven different holiday clubs to estimate the percentage of children in those programmes who come from food insecure households. Results suggest that 42% (16 out of 38 respondents) of children come from households defined as "food insecure" and 24% (9 out of 38 respondents) come from households that are "food insecure with hunger." When secure and insecure households are compared, we discover that food insecure households benefit the most from holiday clubs, which suggests that they may play an important role in mitigating household food insecurity. PMID- 29024212 TI - Prevalence and predictive factors of left atrial tachycardia occurring after second-generation cryoballoon ablation of atrial fibrillation. AB - INTRODUCTION: Assess the prevalence and predictors of left atrial tachycardia (LAT) after cryoballoon ablation of pulmonary veins. METHODS AND RESULTS: Patients who underwent catheter ablation of pulmonary veins with a second generation cryoballoon for symptomatic paroxysmal (151 of 270, 56%) or persistent (119 of 270, 44%) atrial fibrillation were entered in a single-center prospective registry. Patients who experienced postcryoballoon LAT (pcryo-LAT) were selected on the basis of 12-lead ECG characteristics. Left atrial origin was confirmed during conventional EP study and electroanatomical activation mapping, and patients were treated by RF catheter ablation. Pcryo-LAT was observed in 15 (5.6%) of 270 patients and was attributed to a reentrant mechanism in 11 patients (73%). The other four cases of pcryo-LAT were due to focal atrial tachycardia associated with reconnection of one pulmonary vein. In comparison with patients who remained in sinus rhythm, LA area (HR = 1.09; CI 1.01, 1.2; P = 0.02), LVEF (HR = 0.94; CI 0.90, 0.97; P < 0.001), and LVEF <50% (HR = 8.5; CI 3.1, 23.6; P < 0.001) were predictors of pcryo-LAT. After multivariate Cox analysis, only left ventricular ejection fraction < 50% remained predictive of pcryo-LAT, (HR = 7.8, CI 2.3 26.7, P = 0.002). With a mean survival of 23 months, 73% of patients who experienced pcryo-LAT were in sinus rhythm versus 78% of patients without pcryo LAT (log rank P = 0.85). CONCLUSION: The prevalence of pcryo-LAT in patients with atrial fibrillation is low. Left ventricular ejection fraction < 50% is associated with an increased risk of pcryo-LAT. When treated by RF catheter ablation, the presence of pcryo-LAT is not a predictive factor of subsequent recurrence of atrial fibrillation during follow-up. PMID- 29024213 TI - The newborn rat gastric emptying rate is volume and not developmentally dependent. AB - BACKGROUND: Gastric residuals are a common finding in enterally fed preterm neonates and traditionally thought to reflect immaturity-related delayed gastric emptying. Adult human data suggest that the meal volume regulate the gastric emptying rate, but early in life, this has not been adequately evaluated. The goal of this study was to study the rat postnatal changes in gastric emptying rate and the strain-induced effect on muscle contraction. We hypothesized that the stomach content volume and not developmental factors determines the newborn gastric emptying rate, via the Rho-kinase 2 (ROCK-2) pathway. METHODS: Gastric volume and emptying rate measurements were obtained by ultrasound at different postprandial times and the wall strain-dependent changes in muscle contraction were evaluated ex vivo. KEY RESULTS: The newborn rat gastric emptying rate was unrelated to postnatal age, maximal 30 min postprandial, and directly proportional to content volume. In vitro measurements showed that the agonist induced gastric muscle contraction was directly proportional to the stomach wall strain. These changes were mediated via upregulation of ROCK-2 activity. CONCLUSIONS & INFERENCES: The newborn rat gastric emptying rate is not developmentally regulated, but dependent on the content volume via wall strain induced ROCK-2 activation. Further clinical studies addressing the content volume effect on the rate of gastric emptying are warranted, to enhance feeding tolerance in preterm neonates. PMID- 29024215 TI - Structural and functional features of lysine acetylation of plant and animal tubulins. AB - The study of the genome and the proteome of different species and representatives of distinct kingdoms, especially detection of proteome via wide-scaled analyses has various challenges and pitfalls. Attempts to combine all available information together and isolate some common features for determination of the pathway and their mechanism of action generally have a highly complicated nature. However, microtubule (MT) monomers are highly conserved protein structures, and microtubules are structurally conserved from Homo sapiens to Arabidopsis thaliana. The interaction of MT elements with microtubule-associated proteins and post-translational modifiers is fully dependent on protein interfaces, and almost all MT modifications are well described except acetylation. Crystallography and interactome data using different approaches were combined to identify conserved proteins important in acetylation of microtubules. Application of computational methods and comparative analysis of binding modes generated a robust predictive model of acetylation of the epsilon-amino group of Lys40 in alpha-tubulins. In turn, the model discarded some probable mechanisms of interaction between elements of interest. Reconstruction of unresolved protein structures was carried out with modeling by homology to the existing crystal structure (PDBID: 1Z2B) from B. taurus using Swiss-model server, followed by a molecular dynamics simulation. Docking of the human tubulin fragment with Lys40 into the active site of alpha-tubulin acetyltransferase, reproduces the binding mode of peptidomimetic from X-ray structure (PDBID: 4PK3). PMID- 29024214 TI - Regenerative medicine: Stroke survivor and carer views and motivations towards a proposed stem cell clinical trial using placebo neurosurgery. AB - BACKGROUND: Few studies explore stroke survivor views and motivations towards stem cell therapy (SCT). This qualitative study explores the views and motivations of both stroke survivors and their partners/carers towards a proposed 2-arm Phase III Randomised Controlled Trial (RCT) comparing intracerebral insertion of stem cells with placebo neurosurgery in stroke survivors with disability. OBJECTIVE: To explore views and motivations towards a proposed 2-arm stem cell trial and identify factors that may impede and enhance participation. DESIGN: This study adopts a naturalistic design to explore the complexity of this field, employing a participatory action-research approach comprising a specialized Conversation (World) Cafe form of focus group. Data were collected via 5 Conversation Cafes with stroke survivors (age 40-75) and partners/carers between June and October 2016. Of 66 participants, 53 (31 male, 22 female) were stroke survivors and 13 (6 female, 7 male) were partners/carers. Qualitative data were analysed using a thematic approach. DISCUSSION AND CONCLUSION: Stroke survivor views and motivations reflect anticipation of the personal and future benefits of regenerative medicine. Partners/carers sought to balance the value of stroke survivor hope with carrying the weight of hope as carer, a conflict burden adding to known caregiver burden. All participants expressed the need for during and post-trial psychological support. This study provides a rare opportunity to explore the prospective views and motivations of stroke survivors and their partners/carers towards a proposed Phase III 2-arm RCT. This adds weight to qualitative evidence exploring capacity, consent, decision making, perceptions of treatment risk and supports required for clinical trial participation. PMID- 29024216 TI - Acrochordons on the neck; a remarkable clinical feature of tuberous sclerosis showing different patterns. PMID- 29024217 TI - Target of rapamycin FATC domain as a general membrane anchor: The FKBP-12 like domain of FKBP38 as a case study. AB - Increased efforts have been undertaken to better understand the formation of signaling complexes at cellular membranes. Since the preparation of proteins containing a transmembrane domain or a prenylation motif is generally challenging an alternative membrane anchoring unit that is easy to attach, water-soluble and binds to different membrane mimetics would find broad application. The 33-residue long FATC domain of yeast TOR1 (y1fatc) fulfills these criteria and binds to neutral and negatively charged micelles, bicelles, and liposomes. As a case study, we fused it to the FKBP506-binding region of the protein FKBP38 (FKBP38 BD) and used 1 H-15 N NMR spectroscopy to characterize localization of the chimeric protein to micelles, bicelles, and liposomes. Based on these and published data for y1fatc, its use as a C-terminally attachable membrane anchor for other proteins is compatible with a wide range of buffer conditions (pH circa 6-8.5, NaCl 0 to >150 mM, presence of reducing agents, different salts such as MgCl2 and CaCl2 ). The high water-solubility of y1fatc enables its use for titration experiments against a membrane-localized interaction partner of the fused target protein. Results from studies with peptides corresponding to the C terminal 17-11 residues of the 33-residue long domain by 1D 1 H NMR and CD spectroscopy indicate that they still can interact with membrane mimetics. Thus, they may be used as membrane anchors if the full y1fatc sequence is disturbing or if a chemically synthesized y1fatc peptide shall be attached by native chemical ligation, for example, unlabeled peptide to 15 N-labeled target protein for NMR studies. PMID- 29024218 TI - Using probability of drug use as independent variable in a register-based pharmacoepidemiological cause-effect study-An application of the reverse waiting time distribution. AB - BACKGROUND: In register-based pharmacoepidemiological studies, each day of follow up is usually categorized either as exposed or unexposed. However, there is an underlying continuous probability of exposure, and by insisting on a dichotomy, researchers unwillingly force a nondifferential misclassification into their analyses. We have recently developed a model whereby probability of exposure can be modeled, and we tested this on an empirical case of nonsteroidal anti inflammatory drug (NSAID)-induced upper gastrointestinal bleeding (UGIB). METHODS: We used a case-controls data set, consisting of 3568 cases of severe UGIB and 35 552 matched controls. Exposure to NSAID was based on 3 different conventional dichotomous measures. In addition, we tested 3 probabilistic exposure measures, a simple univariate backward-recurrence model, a "full" multivariable model, and a "reduced" multivariable model. Odds ratios (ORs) and 95% confidence intervals for the association between NSAID use and UGIB were calculated by conditional logistic regression, while adjusting for preselected confounders. RESULTS: Compared to the conventional dichotomous exposure measures, the probabilistic exposure measures generated adjusted ORs in the upper range (4.37-4.75) while at the same time having the most narrow confidence intervals (ratio between upper and lower confidence limit, 1.46-1.50). Some ORs generated by conventional measures were higher than the probabilistic ORs, but only when the assumed period of intake was unrealistically short. CONCLUSION: The pattern of high ORs and narrow confidence intervals in probabilistic exposure measures is compatible with less nondifferential misclassification of exposure than in a dichotomous exposure model. Probabilistic exposure measures appear to be an attractive alternative to conventional exposure measures. PMID- 29024219 TI - The determinants of service complexity in children with intellectual disabilities. AB - BACKGROUND: To date, little is known about the predictors of healthcare service utilisation in children with intellectual disability (ID). The aim of this study was to identify the factors associated with service complexity in children with ID in Ontario, Canada. METHODS: The population of this cross-sectional study consisted of 330 children with ID ages 4 to 18 years who accessed mental health services from November of 2012 to June of 2016 in four agencies. All participants completed the interRAI Child and Youth Mental Health and Developmental Disability Assessment Instrument, which is a semi-structured clinician-rated assessment that covers a range of common issues in children with ID. The outcome of this study was a service complexity variable based on (1) mental health service utilisation including any services provided to the child and (2) the management involved in providing that care. Eight individual items were summed, resulting in a scale that ranged from 0 to 8. Scores were then dichotomised into two groups: a score of 0-2 identified children with a low service complexity and a score of 3 or higher identified children with a high service complexity. RESULTS: After adjustment for other covariates, gender was not associated with service complexity. Children aged 11-14 years and children with autism spectrum disorder used over twofold higher levels of service complexity than children aged equal to or less than 10 years or children with other causes of ID. Moreover, victims of bullying, high scores on the family functioning scale or learning or communication disorder were associated with greater service complexity. CONCLUSIONS: The findings of this study indicate that a variety of factors are related to service complexity ranged from children's nonclinical (age and experiences of bullying) to clinical (e.g. aggression, learning/communication problems and autism spectrum disorder) characteristics. PMID- 29024221 TI - Dendrites, deep learning, and sequences in the hippocampus. AB - The hippocampus places us both in time and space. It does so over remarkably large spans: milliseconds to years, and centimeters to kilometers. This works for sensory representations, for memory, and for behavioral context. How does it fit in such wide ranges of time and space scales, and keep order among the many dimensions of stimulus context? A key organizing principle for a wide sweep of scales and stimulus dimensions is that of order in time, or sequences. Sequences of neuronal activity are ubiquitous in sensory processing, in motor control, in planning actions, and in memory. Against this strong evidence for the phenomenon, there are currently more models than definite experiments about how the brain generates ordered activity. The flip side of sequence generation is discrimination. Discrimination of sequences has been extensively studied at the behavioral, systems, and modeling level, but again physiological mechanisms are fewer. It is against this backdrop that I discuss two recent developments in neural sequence computation, that at face value share little beyond the label "neural." These are dendritic sequence discrimination, and deep learning. One derives from channel physiology and molecular signaling, the other from applied neural network theory - apparently extreme ends of the spectrum of neural circuit detail. I suggest that each of these topics has deep lessons about the possible mechanisms, scales, and capabilities of hippocampal sequence computation. PMID- 29024220 TI - Differential expression of key subunits of SWI/SNF chromatin remodeling complexes in porcine embryos derived in vitro or in vivo. AB - In vitro embryo production is an established method for both humans and animals, but is fraught with inferior development and health issues in offspring born after in vitro fertilization procedures. Analysis of epigenetic changes caused by exposure to in vitro conditions should shed light on potential sources of these phenotypes. Using immunocytochemistry, we investigated the localization and relative abundance of components associated with the SWI/SNF (Switch/Sucrose non fermentable) chromatin-remodeling complex-including BAF155, BAF170, BAF180, BAF53A, BAF57, BAF60A, BAF45D, ARID1A, ARID1B, ARID2, SNF5, and BRD7-in oocytes and in in vitro-produced and in vivo-derived porcine embryos. Differences in the localization of BAF155, BAF170, BAF60A, and ARID1B among these sources indicate that improper timing of chromatin remodeling and cellular differentiation might occur in early preimplantation embryos produced and cultured in vitro. PMID- 29024222 TI - Recent Progress on the Confinement, Assembly, and Relaxation of Inorganic Functional Fillers in Polymer Matrix during Processing. AB - Functional polymer composites have gained extensive interest due to their wide range of applications. Various functionalities are mainly provided by functional fillers and their networks in polymer matrix. Therefore, morphology control on filler network has important influence on the final functionalities. The confinement, assembly, and relaxation of inorganic functional fillers in polymers are thought as the basic issues related to such control. Processing as the means to achieve the desired shape and properties for materials often involves strong temperature and shear field, among other factors-not to mention the complex interaction between polymer and filler. These processing fields and interactions during processing are reported to have profound influence on the confinement, assembly, and relaxation of inorganic fillers in polymer matrix. Therefore, various functionalities could be significantly affected by processing. This paper is a review of recent developments in this area. PMID- 29024223 TI - Hughes and Gleason's Virosaine A-Appreciating the Art in Synthesis. AB - The synthesis of the Securinega alkaloid virosaine A by Hughes and Gleason is a perfect example of the intersection of art and chemical synthesis. An ingenious cascade reaction builds most of the polycyclic architecture, but necessitates a challenging C-H functionalization, which is ultimately accomplished by an unusual directed lithiation reaction. PMID- 29024224 TI - Mass-Production of Mesoporous MnCo2 O4 Spinels with Manganese(IV)- and Cobalt(II) Rich Surfaces for Superior Bifunctional Oxygen Electrocatalysis. AB - A mesoporous MnCo2 O4 electrode material is made for bifunctional oxygen electrocatalysis. The MnCo2 O4 exhibits both Co3 O4 -like activity for oxygen evolution reaction (OER) and Mn2 O3 -like performance for oxygen reduction reaction (ORR). The potential difference between the ORR and OER of MnCo2 O4 is as low as 0.83 V. By XANES and XPS investigation, the notable activity results from the preferred MnIV - and CoII -rich surface. The electrode material can be obtained on large-scale with the precise chemical control of the components at relatively low temperature. The surface state engineering may open a new avenue to optimize the electrocatalysis performance of electrode materials. The prominent bifunctional activity shows that MnCo2 O4 could be used in metal-air batteries and/or other energy devices. PMID- 29024225 TI - Snail-mediated cancer stem cell-like phenotype in human CNE2 nasopharyngeal carcinoma cell. AB - BACKGROUND: Cancer stem cell (CSC)-like phenotype, which has been proven to play a critical role in invasion and metastasis of many kinds of cancers, has also been reported to be associated with epithelial-mesenchymal transition. Snail, a potent repressor of E-cadherin expression, was found to have a function to regulate the aforementioned processes. METHODS: In the current study, expression of putative CSCs biomarkers and the ratio of CSC-like CNE2 (cancer cell line) in total CNE2 were measured, and CSC-like characteristics were analyzed with tumor sphere self-renewal and colony-forming assays. Migration and invasion properties were determined by using transwell and wound healing assays. Xenograft tumor assays in vivo were done to evaluate the function of Snail and radiation in the tumor forming ability. RESULTS: In human nasopharyngeal carcinoma (NPC) cells, overexpression of Snail mediates a CSC-like phenotype, which enhances the initiation, invasion, and migration ability of cancer cells. CONCLUSION: Thus, Snail is a potential therapeutic target in NPC. PMID- 29024226 TI - Anger and depressive ruminations as predictors of dysregulated behaviours in borderline personality disorder. AB - BACKGROUND: Anger and depressive ruminations have recently received empirical attention as processes related to borderline personality disorder (BPD). The Emotional Cascade Model (Selby, Anestis, & Joiner, 2008) suggests that negative affect (such as anger and sadness) may trigger rumination, which in turn may increase the duration and extent of negative affect, leading to dysregulated behaviours aimed at reducing such intense and unpleasant emotions. AIM: The aim of this study is to explore the relationships between emotional dysregulation, anger and depressive ruminations, and their role in predicting dysregulated behaviours (such as aggression and self-harm) in a clinical sample of patients with BPD. METHODS: Ninety-one patients with a diagnosis of BPD were recruited from three outpatient community mental health centres and asked to complete a comprehensive assessment for personality disorder symptoms, emotion dysregulation, anger and depressive ruminations, aggression, and self-harm. RESULTS: Anger and depressive ruminations were found to be significantly associated to, respectively, self-harm and aggression, beyond the variance accounted by emotional dysregulation. CONCLUSIONS: Rumination may act as a mediator between emotional dysregulation and dysregulated behaviours in BPD. Future research should examine whether clinical techniques aimed at reducing rumination may be helpful in reducing dysregulated behaviours in patients with BPD. PMID- 29024227 TI - Impact of atrial fibrillation on rest and exercise haemodynamics in heart failure with mid-range and preserved ejection fraction. AB - AIMS: Heart failure with preserved (HFpEF) and mid-range ejection fraction (HFmrEF) are becoming the most prevalent forms of heart failure. Patients with HFpEF/HFmrEF in atrial fibrillation (AF) have poorer survival and quality of life, but the mechanism underpinning this is unknown. We sought to investigate the influence of AF on the haemodynamic profile of HFpEF/HFmrEF patients at rest and during exercise. METHODS AND RESULTS: We invasively measured central haemodynamics at rest and during symptom-limited supine bicycle exercise in HFpEF/HFmrEF patients, 35 in sinus rhythm and 20 in AF with matched left ventricular ejection fraction. At rest, AF patients had significantly increased pulmonary capillary wedge pressure, lower cardiac index and reduced left ventricular stroke work index, despite similar resting heart rate. Under resting conditions, calculated oxygen consumption and systemic arteriovenous oxygen gradient were not different between the two groups. During supine cycling at similar levels of workload, AF patients exhibited a reduced capacity to increase their oxygen consumption and this was accompanied by a persistently impaired cardiac index and left ventricular stroke work index. CONCLUSIONS: The adverse interaction of AF and HFpEF/HFmrEF may be accounted for by an adverse impact on left ventricular systolic function and peripheral oxygen kinetics. PMID- 29024228 TI - De novo hepatocellular carcinoma post-multivisceral transplantation in a child. AB - De novo hepatocellular carcinoma (HCC) post-transplantation in patients without viral hepatitis is extremely rare, with only three reported adult cases in the English literature. Here, we present a case of de novo HCC that developed in a 7 year-old female, who at 8 months of age received a liver, small bowel, spleen, and pancreas transplantation 6.5 years ago for gastroschisis and total parenteral nutrition (TPN)-related cirrhosis. The post-transplant course was complicated by Epstein-Barr virus (EBV) infection, post-transplant lymphoproliferative disease, and subsequent development of multifocal EBV-associated post-transplant smooth muscle tumors (EBV-PTSMT) in the small bowel 1 year and 10 months after transplantation, respectively. This was managed by reducing immunosuppression with rituximab and EBV-specific cytotoxic T-cell therapy. She was noted to have a new lesion in her transplanted liver graft 6.5 years post-transplantation that was diagnosed as HCC. The HCC was resected, and the patient remained clinically stable for 7 months. At that time, recurrence of the HCC was discovered on MRI. She passed away 6 months after. To the best of our knowledge, this is the first reported occurrence of de novo HCC post-transplantation in the pediatric population that is unrelated to viral hepatitis in either recipient or donor. PMID- 29024229 TI - Bioinspired Dynamic Wetting on Multiple Fibers. AB - Natural fibers have versatile strategies for interacting with water media and better adapting to the local environment, and these strategies offer inspiration for the development of artificial functional fibers with diverse applications. Wetting on fibers is a dynamic liquid-moving process on/in fibrous systems with various patterns, and the process is normally driven by the structural gradient, chemical gradient, elasticity of a single fiber, or the synergistic effect of these factors in multiple fibers in an integrated system in which the spatial geometry of the fibers is involved. Compared with the directional liquid movement on a single fiber, wetting on multiple fibers in both the micro- and macroscales is particularly fascinating, with various performances, including directional liquid transport, controllable liquid transfer, efficient liquid encapsulation, and capillary-induced fibrous coalescence. Based on these properties, fibrous materials offer an alternative open system for liquid manipulation that is applicable to various functional liquid materials. Here, recent achievements in bioinspired dynamic wetting on multiple fibers are highlighted, and perspectives on future directions are presented. PMID- 29024230 TI - gamma-Aminobutyric acid (GABA) oral rinse reduces capsaicin-induced burning mouth pain sensation: An experimental quantitative sensory testing study in healthy subjects. AB - BACKGROUND: In burning mouth patients, analgesia after oral administration of clonazepam may result from modulation of peripheral gamma-aminobutyric acid (GABA) receptors. METHODS: The effect of oral administration of test solutions (water, 0.5 mol/L or 0.05 mol/L GABA, 1% lidocaine) was investigated for the amelioration of pain and sensitivity induced by application of capsaicin (1%, 2 min) to the tongue of thirty healthy male and female subjects in this four session, randomized, placebo-controlled, double-blinded, cross-over study. Intra oral quantitative sensory testing was used to assess cold (CDT), warm (WDT) and mechanical (MDT) detection thresholds as well as mechanical (MPT) and heat (HPT) pain thresholds. Capsaicin-induced pain intensity was continuously rated on a 0 10 electronic visual analogue scale (VAS). The area under the VAS curve (VASAUC) after rinsing was calculated for each solution. RESULTS: Capsaicin application on the tongue evoked burning pain with a peak of 4.8/10, and significantly increased CDT and MDT while significantly decreasing WDT, HPT, and MPT. The VASAUC was significantly smaller after oral rinse with 0.05 mol/L GABA, 0.5 mol/L GABA, and 1% lidocaine than after oral rinse with water. Rinse with 0.5 mol/L or 0.05 mol/L GABA were similarly effective in decreasing VASAUC. Rinsing with either 1% lidocaine, 0.5 mol/L or 0.05 mol/L GABA also significantly attenuated the effects of capsaicin on WDT and HPT in a treatment independent manner. There were no sex related differences in these effects of GABA. CONCLUSIONS: Capsaicin-induced burning tongue pain and decreases in WDT and HPT can be ameliorated by rinsing the mouth with lidocaine and GABA solutions. SIGNIFICANCE: Rinsing the mouth with an oral GABA containing solution ameliorated burning pain and increased heat sensitivity produced by application of capsaicin to the tongue. This finding suggests that GABA can act as a local analgesic agent in the oral cavity. PMID- 29024231 TI - Chimeric thoracoacromial artery perforator flap for one-staged reconstruction of complex pharyngoesophageal defects: A single unit experience. AB - BACKGROUND: Circumferential hypopharyngeal defects with anterior neck skin loss often require double-stacked or chimeric flaps to achieve good surgical outcomes. The thoracoacromial artery perforator (TAAP) flap is a simple and reliable method for hypopharyngeal defect reconstruction. METHODS: From March 2012 to February 2015, 19 male patients with an average age of 62 years (range 42-81 years) underwent complex pharyngoesophageal defect reconstruction with chimeric TAAP flaps. RESULTS: All 19 male patients who underwent reconstruction with TAAP flaps achieved optimal functional outcomes. All donor sites were closed primarily. The average length of hospital stay was 12.5 days (range 10-19 days). All patients returned back to normal nutrition after 8 weeks postoperatively. The average follow-up period was 19.3 months (range 14-48 months). CONCLUSION: The chimeric TAAP flap is an innovative local alternative solution for reconstruction of complex circumferential hypopharyngeal defects when free tissue transfer is contraindicated or neck vessels are depleted. PMID- 29024232 TI - Social constraints and psychological well-being after prostate cancer: A follow up at 12 and 24 months after surgery. AB - OBJECTIVE: Studies indicate that social constraints (barriers to emotional expression) may be a risk factor for psychological morbidity. We aimed to investigate the association between prostate cancer-related social constraints and psychological well-being following prostate cancer surgery. METHODS: In a group of 3478 partnered patients, participating in the Laparoscopic Prostatectomy Robot Open trial, a prospective multicenter comparative study of robot-assisted laparoscopic and retropubic radical prostatectomy for prostate cancer, we used log-binomial regression analysis to investigate the links between prostate cancer related social constraints at 3 months after surgery and psychological well-being at 12 and 24 months. RESULTS: A total of 1086 and 1093 men reported low well being at 12 and 24 months, respectively. Prostate cancer-related social constraints by partner predicted low psychological well-being at 12 months (adjusted RR: 1.4; 95% CI, 1.1-1.9) and by others (adjusted RR: 1.9; 95% CI, 1.1 3.5). Intrusive thoughts mediated the association. CONCLUSIONS: Negative responses from the social environment, especially from partner to talking about the prostate cancer experience affected patients' psychological well-being 2 years after radical prostatectomy. Results emphasize the importance of helping patients mobilize psychosocial resources within their social network, especially among those with a lack of quality psychosocial support. PMID- 29024234 TI - Vicariously touching products through observing others' hand actions increases purchasing intention, and the effect of visual perspective in this process: An fMRI study. AB - The growth of online shopping increases consumers' dependence on vicarious sensory experiences, such as observing others touching products in commercials. However, empirical evidence on whether observing others' sensory experiences increases purchasing intention is still scarce. In the present study, participants observed others interacting with products in the first- or third person perspective in video clips, and their neural responses were measured with functional magnetic resonance imaging (fMRI). We investigated (1) whether and how vicariously touching certain products affected purchasing intention, and the neural correlates of this process; and (2) how visual perspective interacts with vicarious tactility. Vicarious tactile experiences were manipulated by hand actions touching or not touching the products, while the visual perspective was manipulated by showing the hand actions either in first- or third-person perspective. During the fMRI scanning, participants watched the video clips and rated their purchasing intention for each product. The results showed that, observing others touching (vs. not touching) the products increased purchasing intention, with vicarious neural responses found in mirror neuron systems (MNS) and lateral occipital complex (LOC). Moreover, the stronger neural activities in MNS was associated with higher purchasing intention. The effects of visual perspectives were found in left superior parietal lobule (SPL), while the interaction of tactility and visual perspective was shown in precuneus and precuneus-LOC connectivity. The present study provides the first evidence that vicariously touching a given product increased purchasing intention and the neural activities in bilateral MNS, LOC, left SPL and precuneus are involved in this process. Hum Brain Mapp 39:332-343, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024233 TI - Use of D-dimer measurement to guide anticoagulant treatment in recurrent pregnancy loss associated with antiphospholipid syndrome. AB - PROBLEM: To examine whether the level of plasma D-dimer can guide anticoagulant treatment in recurrent pregnancy loss (RPL) associated with antiphospholipid syndrome (APS). METHODS: A total of 1096 RPL women with APS between 2012 and 2015 in a single-center hospital were randomly divided into two groups (group A, 75 mg of low-dose aspirin [LDA] daily; group B, 75 mg of LDA plus 4100 U of low molecular weight heparin [LMWH] subcutaneously daily); 1015 of the total successfully completed the trial. Plasma D-dimer level and live birth rates were estimated. RESULTS: For APS women with an elevated D-dimer level at baseline, higher live birth rates were reached in LDA plus LMWH group compared to LDA alone group (92.71% vs 61.68%, P < .0001); however, no significant differences were found between the two groups of women with a normal D-dimer level (87.08% vs 83.76%, P = .48). Women with a normal D-dimer level at all blood draw points had the highest live birth rates (92.88%), as compared with those with persistently abnormal D-dimer at all blood draw points or increased D-dimer level after treatment (P < .001). CONCLUSION: The combination therapy with LDA and LMWH is not essential for all APS women, but has proven to be beneficial for women with an elevated D-dimer level. PMID- 29024236 TI - Mesenchymal Stromal Cell-Derived Extracellular Vesicles Provide Long-Term Survival After Total Body Irradiation Without Additional Hematopoietic Stem Cell Support. AB - The therapeutic effect of mesenchymal stromal cells (MSC) in tissue regeneration is based mainly on the secretion of bioactive molecules. Here, we report that the radioprotective effect of mouse bone marrow derived mesenchymal stromal cells (mMSC) can be attributed to extracellular vesicles (EV) released from mMSC. The transplantation of mMSC-derived EV into lethally irradiated mice resulted in long term survival but no improvement in short-term reconstitution of the recipients. Importantly, the radiation rescue was efficient without additional hematopoietic support. In vitro we show a protection by EV of irradiated hematopoietic stem cells but not progenitor cells using stroma-cell cultures and colony-forming assays. After systemic infusion into lethally irradiated recipients, labeled EV traveled freely through the body reaching the bone marrow within 2 hours. We further show that long-term repopulating Sca-1 positive and c-kit low-positive stem cells were directly targeted by EV leading to long-term survival. Collectively, our data suggest EV as an effective first-line treatment to combat radiation-induced hematopoietic failure which might also be helpful in alleviating myelosuppression due to chemotherapy and toxic drug reaction. We suggest the infusion of MSC-derived EV as efficient and immediate treatment option after irradiation injuries. Stem Cells 2017;35:2379-2389. PMID- 29024237 TI - Sterol content in the artificial diet of Mythimna separata affects the metabolomics of Arma chinensis (Fallou) as determined by proton nuclear magnetic resonance spectroscopy. AB - Insects cannot synthesize sterols and must obtain them from plants. Therefore, reducing plant sterol content or changing sterol type might be an effective pest control strategy. However, the impacts of these changes on pests' natural predators remain unknown. Here, we fed artificial diets with reduced sterol content to Mythimna separata (Walker) (Lepidoptera: Noctuidae) and investigated the effects on its natural predator, Arma chinensis (Fallou) (Hemiptera: Pentatomidae). Reduced sterol content in M. separata (MS1, MS2, and MS5) was achieved by feeding them artificial diets prepared from a feed base subjected to one, two, or five cycles of sterol extractions, respectively. The content of most substances increased in A. chinensis (AC) groups feeding on MS2 and MS5. The content of eight substances (alanine, betaine, dimethylamine, fumarate, glutamine, glycine, methylamine, and sarcosine) differed significantly between the control (AC0) and treated (AC1, AC2, and AC5) groups. Metabolic profiling revealed that only AC5 was significantly distinct from AC0; the major substances contributing to this difference were maltose, glucose, tyrosine, proline, O phosphocholine, glutamine, allantoin, lysine, valine, and glutamate. Furthermore, only two metabolic pathways, that is, nicotinate and nicotinamide metabolism and ubiquinone and other terpenoid-quinone biosynthesis, differed significantly between AC1 and AC5 and the control, albeit with an impact value of zero. Thus, the sterol content in the artificial diet fed to M. separata only minimally affected the metabolites and metabolic pathways of its predator A. chinensis, suggesting that A. chinensis has good metabolic self-regulation with high resistance to sterol content changes. PMID- 29024238 TI - Size- and Interface-Modulated Metal-Insulator Transition in Solution-Synthesized Nanoscale VO2 -TiO2 -VO2 Heterostructures. AB - The M1 form of vanadium dioxide, which exhibits a reversible insulator-metal transition above room temperature, has been incorporated into nanoscale heterostructures through solution-phase epitaxial growth on the tips of rutile TiO2 nanorods. Four distinct classes of VO2 -TiO2 -VO2 nanorod heterostructures are accessible by modulating the growth conditions. Each type of VO2 -TiO2 -VO2 nanostructure has a different insulator-metal transition temperature that depends on the VO2 domain sizes and the TiO2 -VO2 interfacial strain characteristics. PMID- 29024235 TI - Topography and timing of activity in right inferior frontal cortex and anterior insula for stopping movement. AB - Stopping incipient action activates both the right inferior frontal cortex (rIFC) and the anterior insula (rAI). Controversy has arisen as to whether these comprise a unitary cortical cluster-the rIFC/rAI-or whether rIFC is the primary stopping locus. To address this, we recorded directly from these structures while taking advantage of the high spatiotemporal resolution of closely spaced stereo electro-encephalographic (SEEG) electrodes. We studied 12 patients performing a stop-signal task. On each trial they initiated a motor response (Go) and tried to stop to an occasional stop signal. Both the rIFC and rAI exhibited an increase in broadband gamma activity (BGA) after the stop signal and within the time of stopping (stop signal reaction time, SSRT), regardless of the success of stopping. The proportion of electrodes with this response was significantly greater in the rIFC than the rAI. Also, the rIFC response preceded that in the rAI. Last, while the BGA increase in rIFC occurred mainly prior to SSRT, the rAI showed a sustained increase in the beta and low gamma bands after the SSRT. In summary, the rIFC was activated soon after the stop signal, prior to and more robustly than the rAI, which on the other hand, showed a more prolonged response after the onset of stopping. Our results are most compatible with the notion that the rIFC is involved in triggering outright stopping in concert with a wider network, while the rAI is likely engaged by other processes, such as arousal, saliency, or behavioral adjustments. Hum Brain Mapp 39:189-203, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024239 TI - Phosphorylation-Responsive Membrane Transport of Peptides. AB - Phosphorylation and dephosphorylation of peptides by kinases and phosphatases is essential for signal transduction in biological systems, and many diseases involve abnormal activities of these enzymes. Herein, we introduce amphiphilic calixarenes as key components for supramolecular, phosphorylation-responsive membrane transport systems. Dye-efflux experiments with liposomes demonstrated that calixarenes are highly active counterion activators for established cell penetrating peptides, with EC50 values in the low nanomolar range. We have now found that they can even activate membrane transport of short peptide substrates for kinases involved in signal transduction, whereas the respective phosphorylated products are much less efficiently transported. This allows regulation of membrane transport activity by protein kinase A (PKA) and protein kinase C (PKC), as well as monitoring of their activity in a label-free kinase assay. PMID- 29024240 TI - Total Synthesis of Lycoricidine and Narciclasine by Chemical Dearomatization of Bromobenzene. AB - The total synthesis of lycoricidine and narciclasine is enabled by an arenophile mediated dearomative dihydroxylation of bromobenzene. Subsequent transpositive Suzuki coupling and cycloreversion deliver a key biaryl dihydrodiol intermediate, which is rapidly converted into lycoricidine through site-selective syn-1,4 hydroxyamination and deprotection. The total synthesis of narciclasine is accomplished by the late-stage, amide-directed C-H hydroxylation of a lycoricidine intermediate. Moreover, the general applicability of this strategy to access dihydroxylated biphenyls is demonstrated with several examples. PMID- 29024241 TI - Sentinel node biopsy in ductal carcinoma in situ of the breast: Never justified? AB - Sentinel lymph node biopsy for ductal carcinoma in situ (DCIS) of the breast is not standard of care. However, nodal involvement for DCIS patients is reported. Aim of our study was to identify preoperative features predictive of nodal involvement in DCIS patients. We have retrospectively reviewed 175 patients with a preoperative diagnosis of DCIS following a vacuum-assisted breast biopsy, and undergoing surgery with sentinel node biopsy. Variables distribution was compared between patients upstaged to invasive cancer at final pathology and patients with a confirmed DCIS, and between positive vs negative sentinel node patients. Univariate and multivariate analyses were performed for risk of a positive node. Lymph node biopsy was positive in 13 (7.4%) patients, with 8 (61.5%) macrometastases and 5 (38.5%) micrometastases. In these patients, Breast Imaging Reporting and Data System (BI-RADS) index >4 (OR 4.69, 95% CI 1.282-17.224, P = .02), lesion extension >=20 mm (OR 4.25, 95% CI 1.255-14.447, P = .02), multifocal disease (OR 4.12, 95% CI 0.987-17.174, P = .05), comedo type (OR 3.54, 95% CI 1.044-11.969, P = .04), and upstaging (OR 4.56, 95% CI 1.080-19.249, P = .04) were all predictive of nodal involvement, although upstaging could not be predicted preoperatively. By multivariate analysis, the only independent factor predictive for positive sentinel node was multifocal disease (OR 5.14, 95% CI 1.015-26.066, P < .05). A preoperative diagnosis of DCIS, also including advanced biopsy systems such as vacuum-assisted breast biopsy, may be not always sufficient to exclude patients from sentinel node biopsy. DCIS patients with associated BI-RADS >4, lesion extension >=20 mm, comedo type, and above all multifocal disease should be considered for axillary evaluation. PMID- 29024242 TI - Lanthanide-Based T2ex and CEST Complexes Provide Insights into the Design of pH Sensitive MRI Agents. AB - The CEST and T1 /T2 relaxation properties of a series of Eu3+ and Dy3+ DOTA tetraamide complexes with four appended primary amine groups are measured as a function of pH. The CEST signals in the Eu3+ complexes show a strong CEST signal after the pH was reduced from 8 to 5. The opposite trend was observed for the Dy3+ complexes where the r2ex of bulk water protons increased dramatically from ca. 1.5 mm-1 s-1 to 13 mm-1 s-1 between pH 5 and 9 while r1 remained unchanged. A fit of the CEST data (Eu3+ complexes) to Bloch theory and the T2ex data (Dy3+ complexes) to Swift-Connick theory provided the proton-exchange rates as a function of pH. These data showed that the four amine groups contribute significantly to proton-catalyzed exchange of the Ln3+ -bound water protons even though their pKa 's are much higher than the observed CEST or T2ex effects. This demonstrated the utility of using appended acidic/basic groups to catalyze prototropic exchange for imaging tissue pH by MRI. PMID- 29024243 TI - Low clinical conversion rate in clinically isolated syndrome patients - diagnostic benefit of McDonald 2010 criteria? AB - BACKGROUND AND PURPOSE: New diagnostic criteria of multiple sclerosis (MS) increase the number of patients being diagnosed with MS whilst a substantial part might not convert to clinically definite MS (CDMS). The diagnostic accuracy of the McDonald 2005 and 2010 criteria for conversion to CDMS was evaluated in an unselected cohort of patients in whom an MS diagnostic work-up was decided. METHODS: Clinical, magnetic resonance imaging and cerebrospinal fluid data were analysed for all patients who presented with symptoms suspicious for MS at the university based MS outpatient clinic between 2006 and 2010 (n = 165). RESULTS: Follow-up was available for 131 patients. During the mean follow-up period of 2 years, 19% of patients developed CDMS whereas 64% of the patients fulfilling McDonald 2010 criteria did not convert to CDMS. CONCLUSION: The low clinical conversion rate indicates that the new diagnostic criteria may increase the incidence of MS cases with a less active disease course. PMID- 29024244 TI - Local Chemical Stimulation of Neurons with the Fluidic Force Microscope (FluidFM). AB - Physiological communication between neurons is dependent on the exchange of neurotransmitters at the synapses. Although this chemical signal transmission targets specific receptors and allows for subtle adaptation of the action potential, in vitro neuroscience typically relies on electrical currents and potentials to stimulate neurons. The electric stimulus is unspecific and the confinement of the stimuli within the media is technically difficult to control and introduces large artifacts in electric recordings of the activity. Here, we present a local chemical stimulation platform that resembles in vivo physiological conditions and can be used to target specific receptors of synapses. Neurotransmitters were dispensed using the force-controlled fluidic force microscope (FluidFM) nanopipette, which provides exact positioning and precise liquid delivery. We show that controlled release of the excitatory neurotransmitter glutamate induces spiking activity in primary rat hippocampal neurons, as measured by concurrent electrical and optical recordings using a microelectrode array and a calcium-sensitive dye, respectively. Furthermore, we characterized the glutamate dose response of neurons by applying stimulation pulses of glutamate with concentrations from 0 to 0.5 mm. This new stimulation approach, which combines FluidFM for gentle and precise positioning with a microelectrode array read-out, makes it possible to modulate the activity of individual neurons chemically and simultaneously record their induced activity across the entire neuronal network. The presented platform not only offers a more physiological alternative compared with electrical stimulation, but also provides the possibility to study the effects of the local application of neuromodulators and other drugs. PMID- 29024245 TI - hace1 Influences zebrafish cardiac development via ROS-dependent mechanisms. AB - BACKGROUND: In this study, we reveal a previously undescribed role of the HACE1 (HECT domain and Ankyrin repeat Containing E3 ubiquitin-protein ligase 1) tumor suppressor protein in normal vertebrate heart development using the zebrafish (Danio rerio) model. We examined the link between the cardiac phenotypes associated with hace1 loss of function to the expression of the Rho small family GTPase, rac1, which is a known target of HACE1 and promotes ROS production via its interaction with NADPH oxidase holoenzymes. RESULTS: We demonstrate that loss of hace1 in zebrafish via morpholino knockdown results in cardiac deformities, specifically a looping defect, where the heart is either tubular or "inverted". Whole-mount in situ hybridization of cardiac markers shows distinct abnormalities in ventricular morphology and atrioventricular valve formation in the hearts of these morphants, as well as increased expression of rac1. Importantly, this phenotype appears to be directly related to Nox enzyme-dependent ROS production, as both genetic inhibition by nox1 and nox2 morpholinos or pharmacologic rescue using ROS scavenging agents restores normal cardiac structure. CONCLUSIONS: Our study demonstrates that HACE1 is critical in the normal development and proper function of the vertebrate heart via a ROS-dependent mechanism. Developmental Dynamics 247:289-303, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024247 TI - CacyBP/SIP inhibits the migration and invasion behaviors of glioblastoma cells through activating Siah1 mediated ubiquitination and degradation of cytoplasmic p27. AB - Calcyclin-binding protein or Siah-1-interacting protein (CacyBP/SIP) has been reported to be up-regulated and plays an important role in promoting cell proliferation in human glioma. However, the effect of CacyBP/SIP on glioma cell motility is still unclear. Here, to our surprise, CacyBP/SIP was found to inhibit the migration and invasion of glioma cells U251 and U87. Silencing of CacyBP/SIP significantly promoted the migration and invasion behaviors of glioma cells. On the contrary, overexpression of CacyBP/SIP obviously suppressed them. Further investigation indicated that silencing of CacyBP/SIP significantly reduced the interaction between Siah1 and cytoplasmic p27, which in turn attenuated the ubiquitination and degradation of cytoplasmic p27. In contrast, overexpression of CacyBP/SIP promoted the interaction between Siah1 and cytoplasmic p27, which in turn increased the ubiquitination and degradation of cytoplasmic p27. Importantly, the degradation of p27 could be blocked by Siah1 knockdown. Finally, we found that CacyBP/SIP was reversely related to cytoplasmic p27 in human normal brain tissues and glioma tissues. Taken together, these results suggest that CacyBP/SIP plays an important role in inhibiting glioma cell migration and invasion through promoting the degradation of cytoplasmic p27. PMID- 29024246 TI - PixelDB: Protein-peptide complexes annotated with structural conservation of the peptide binding mode. AB - PixelDB, the Peptide Exosite Location Database, compiles 1966 non-redundant, high resolution structures of protein-peptide complexes filtered to minimize the impact of crystal packing on peptide conformation. The database is organized to facilitate study of structurally conserved versus non-conserved elements of protein-peptide engagement. PixelDB clusters complexes based on the structural similarity of the peptide-binding protein, and by comparing complexes within a cluster highlights examples of domains that engage peptides using more than one binding mode. PixelDB also identifies conserved peptide core structural motifs characteristic of each binding mode. Peptide regions that flank core motifs often make non-structurally conserved interactions with the protein surface in regions we call exosites. Many examples establish that exosite contacts can be important for enhancing protein binding and interaction specificity. PixelDB provides a resource for computational and structural biologists to study, model, and predict core-motif and exosite-contacting peptide interactions. PixelDB is available to the community without restriction in a convenient flat-file format with accompanying visualization tools. PMID- 29024248 TI - Precise Assembly of Particles for Zigzag or Linear Patterns. AB - Precise control of particles assembly has tremendous potential for fabricating intricate structures and functional materials. However, it is still a challenge to achieve one-dimensional assembly with precisely controlled morphology. An effective strategy is reported to precisely assemble particles into well-defined patterns by liquid confinement through controlling the viscosity of the assembly system. It is found that high viscosity of the system impedes particles rearrangement and facilitates the generation of zigzag or twined zigzag assembly structures, while low viscosity of the system allows particles to rearrange into linear or zipper structures driven by lowering the surface deformation of the liquid. As a result, precise control of different assembly patterns can be achieved through tuning the viscosity of solvent and size confinement ratios. This facile approach shows generality for particles assembly of different sizes and materials. PMID- 29024249 TI - Bone Strength in Girls and Boys After a Distal Radius Fracture: A 2-Year HR-pQCT Double Cohort Study. AB - We recently reported impaired bone strength in girls with low- to moderate-energy distal radius fractures (Fx) compared with girls with no history of forearm fractures (Non-Fx). We aimed to determine whether bone strength deficits observed at baseline were still present after 2 years. We assessed bone strength, microarchitecture, and bone mineral density (BMD) of the non-fractured (Fx) and non-dominant (Non-Fx) distal radius (7% site) at baseline, 12, and 24 months using high-resolution pQCT (Scanco Medical, Bruttisellen, Switzerland) in 104 girls (aged 11.0 +/- 1.7 years; 47 Fx, 57 Non-Fx) and 157 boys (aged 12.7 +/- 1.7 years; 86 Fx, 71 Non-Fx). Bone outcomes included total area (Tt.Ar) and bone mineral density (Tt.BMD), trabecular bone volume ratio (BV/TV), thickness (Tb.Th), separation (Tb.Sp), and number (Tb.N), and cortical BMD (Ct.BMD), thickness (Ct.Th), and porosity (Ct.Po). We used finite element analysis to estimate bone strength (failure load [F.Load]; ultimate stress [U.Stress]; load to-strength ratio). We used sex-specific mixed-effects models to compare bone outcomes between Fx and Non-Fx over 2 years. In girls, those with fractures had 18% to 24% lower U.Stress and 5% to 9% lower Tt.BMD than Non-Fx at all time points (p < 0.017). In secondary analysis by fracture degree, girls with low energy (LE) fractures had 19% to 21% lower F.Load, 25% to 47% lower U.Stress, 11% to 14% lower Tt.BMD, and 11% to 15% lower BV/TV than Non-Fx at all time points (p < 0.017). In contrast, boys' bone outcomes were similar between Fx and Non-Fx at all time points. In secondary analysis by fracture degree, boys with LE fractures had 10% lower Tt.BMD and 10% lower Ct.Th compared with Non-Fx at 12 months only. Deficits in distal radius bone strength and trabecular bone microarchitecture appear to track across 2 years after a forearm fracture in girls but not in boys. Longer follow-up is needed to determine whether deficits persist into adulthood in women and how they may influence future risk of fragility fracture. (c) 2017 American Society for Bone and Mineral Research. PMID- 29024250 TI - Non-invasive detection of bladder cancer via expression-targeted gene delivery. AB - BACKGROUND: Because of the time and expense associated with the procedures and possible distress to the patient, cystoscopy or other imaging techniques are typically not used for bladder cancer detection before symptoms become present. Alternatively, commercial assays for urinary tumor markers exist but are marred by low sensitivity and high cost. There is a need for a simple and sensitive means of tumor detection, such as via the analysis of urine. METHODS: Plasmids encoding the secretable reporter Gaussia Luciferase (G.LUC), under the control of cmv, cox2 or opn promoters, were delivered via polyethylenimine into bladder tumor cells in culture and into the bladders of mice. Expression profiles of the reporter were recorded, the optimal times for reporter detection were determined and the relationship of reporter expression with tumor size was calculated. RESULTS: In vitro results showed that both the cox2 and opn promoters can drive significant expression of G.LUC in bladder carcinoma cells in a targeted fashion. In vivo results demonstrated that the cox2 promoter caused expression of G.LUC at detectable levels in the urine, with local signal maxima occurring at 48 and 72 h post-transfection. G.LUC levels in the urine had a 24-h periodicity, with the periodicity partly being the result of an agent secreted by tumor cells that served to mask the luciferase signal. CONCLUSIONS: Having shown tumor specificity and having been calibrated with respect to circadian expression patterns, the detection system shows great promise for future investigation of tumor presence both in the urinary bladder and other models of cancer. PMID- 29024251 TI - Enzymatic Incorporation of Modified Purine Nucleotides in DNA. AB - A series of nucleotide analogues, with a hypoxanthine base moiety (8 aminohypoxanthine, 1-methyl-8-aminohypoxanthine, and 8-oxohypoxanthine), together with 5-methylisocytosine were tested as potential pairing partners of N8 glycosylated nucleotides with an 8-azaguanine or 8-aza-9-deazaguanine base moiety by using DNA polymerases (incorporation studies). The best results were obtained with the 5-methylisocytosine nucleotide followed by the 1-methyl-8 aminohypoxanthine nucleotide. The experiments demonstrated that small differences in the structure (8-azaguanine versus 8-aza-9-deazaguanine) might lead to significant differences in recognition efficiency and selectivity, base pairing by Hoogsteen recognition at the polymerase level is possible, 8-aza-9 deazaguanine represents a self-complementary base pair, and a correlation exists between in vitro incorporation studies and in vivo recognition by natural bases in Escherichia coli, but this recognition is not absolute (exceptions were observed). PMID- 29024252 TI - Revision gastric bypass after laparoscopic adjustable gastric band: a 10-year experience at a public teaching hospital. AB - BACKGROUND: In Australia, there is limited access to public revisional bariatric procedures. However, the need for such procedures is rising. We investigated the safety and efficacy of band-to-bypass procedures in our experience at a public teaching hospital over a period of 10 years. METHODS: Using a prospectively maintained bariatric surgical database, we analysed 91 consecutive planned band to-bypass procedures from 2007 to November 2016. All patients had prior laparoscopic adjustable gastric bands removed and formation of Roux-en-Y gastric bypass, in one or two stages. Primary outcomes were 30-day complication rate and excess weight loss from 12 months. The impact of fellows as primary operators on these outcomes was assessed. RESULTS: Eighty-two patients met the inclusion criteria. Seventy-one (84.5%) were females. Mean age was 48.8 years (SD: 8.85). Immediate post-operative complications included six (7.3%) patients with gastrojejunostomy leak, three of whom required conversion to laparotomy, with one mortality (1.22%). Fifty-two patients had follow-up of 1 year or more (median: 2.36, range: 1-9.24). Mean excess weight loss at the end of follow-up was 52.79% (SD: 46.46). Twenty-eight (34.14%) cases were performed primarily by a fellow under the guidance of an experienced bariatric surgeon, with equivalent results. CONCLUSION: Revisional band-to-bypass in the public setting is an effective but complex procedure associated with morbidity. Some risk may be ameliorated by development of selection criteria to exclude certain high-risk groups. We hope discussion amongst other bariatric groups will further refine this approach. PMID- 29024253 TI - Prerequisites of Isopeptide Bond Formation in Microcystin Biosynthesis. AB - The biosynthesis of the potent cyanobacterial hepatotoxin microcystin involves isopeptide bond formation through the carboxylic acid side chains of d-glutamate and beta-methyl d-aspartate. Analysis of the in vitro activation profiles of the two corresponding adenylation domains, McyE-A and McyB-A2 , either in a didomain or a tridomain context with the cognate thiolation domain and the upstream condensation domain revealed that substrate activation of both domains strictly depended on the presence of the condensation domains. We further identified two key amino acids in the binding pockets of both adenylation domains that could serve as a bioinformatic signature of isopeptide bond-forming modules incorporating d-glutamate or d-aspartate. Our findings further contribute to the understanding of the multifaceted role of condensation domains in nonribosomal peptide synthetase assembly lines. PMID- 29024254 TI - O2 Activation on Ceria Catalysts-The Importance of Substrate Crystallographic Orientation. AB - An atomic-level understanding of dioxygen activation on metal oxides remains one of the major challenges in heterogeneous catalysis. By performing a thorough surface-science study of all three low-index single-crystal surfaces of ceria, probably the most important redox catalysts, we provide a direct spectroscopic characterization of reactive dioxygen species at defect sites on the reduced ceria (110) and (100) surfaces. Surprisingly, neither of these superoxo and peroxo species was found on ceria (111), the thermodynamically most stable surface of this oxide. Applying density functional theory, we could relate these apparently inconsistent findings to a sub-surface diffusion of O vacancies on (111) substrates, but not on the less-closely packed surfaces. These observations resolve a long standing debate concerning the location of O vacancies on ceria surfaces and the activation of O2 on ceria powders. PMID- 29024255 TI - Deficiency of the melanin biosynthesis genes SCD1 and THR1 affects sclerotial development and vegetative growth, but not pathogenicity, in Sclerotinia sclerotiorum. AB - The fungus Sclerotinia sclerotiorum is a necrotrophic plant pathogen causing significant damage on a broad range of crops. This fungus produces sclerotia that serve as the long-term survival structures in the life cycle and the primary inoculum in the disease cycle. Melanin plays an important role in protecting mycelia and sclerotia from ultraviolet radiation and other adverse environmental conditions. In this study, two genes, SCD1 encoding a scytalone dehydratase and THR1 encoding a trihydroxynaphthalene reductase, were disrupted by target gene replacement, and their roles in mycelial growth, sclerotial development and fungal pathogenicity were investigated. Phylogenetic analyses indicated that the deduced amino acid sequences of SCD1 and THR1 were similar to the orthologues of Botrytis cinerea. Expression of SCD1 was at higher levels in sclerotia relative to mycelia. THR1 was expressed at similar levels in mycelia and sclerotia at early stages, but was up-regulated in sclerotia at the maturation stage. Disruption of SCD1 or THR1 did not change the pathogenicity of the fungus, but resulted in slower radial growth, less biomass, wider angled hyphal branches, impaired sclerotial development and decreased resistance to ultraviolet light. PMID- 29024257 TI - Active Cocatalysts for Photocatalytic Hydrogen Evolution Derived from Nickel or Cobalt Amine Complexes. AB - A cost-effective and robust strategy for the anchoring of molecular hydrogen evolution cocatalysts onto semiconductors has recently been reported. The composite materials were highly efficient and stable towards photocatalytic H2 evolution. This study provides guidance for the design and construction of highly active heterogeneous photocatalysts. PMID- 29024256 TI - Transgenerational plasticity and climate change experiments: Where do we go from here? AB - Phenotypic plasticity, both within and across generations, is an important mechanism that organisms use to cope with rapid climate change. While an increasing number of studies show that plasticity across generations (transgenerational plasticity or TGP) may occur, we have limited understanding of key aspects of TGP, such as the environmental conditions that may promote it, its relationship to within-generation plasticity (WGP) and its role in evolutionary potential. In this review, we consider how the detection of TGP in climate change experiments is affected by the predictability of environmental variation, as well as the timing and magnitude of environmental change cues applied. We also discuss the need to design experiments that are able to distinguish TGP from selection and TGP from WGP in multigenerational experiments. We conclude by suggesting future research directions that build on the knowledge to date and admit the limitations that exist, which will depend on the way environmental change is simulated and the type of experimental design used. Such an approach will open up this burgeoning area of research to a wider variety of organisms and allow better predictive capacity of the role of TGP in the response of organisms to future climate change. PMID- 29024258 TI - Non-Enzymatic Oxidation of a Pentagalloylglucose Analogue into Members of the Ellagitannin Family. AB - The occurrence of more than 1000 structurally diverse ellagitannins has been hypothesized to begin with the oxidation of penta-O-galloyl-beta-d-glucose (beta PGG) for the coupling of the galloyl groups. However, the non-enzymatic behavior of beta-PGG in the oxidation is unknown. Disclosed herein is which galloyl groups tended to couple and which axial chirality was predominant in the derived hexahydroxydiphenoyl groups when an analogue of beta-PGG was subjected to oxidation. The galloyl groups coupled in the following order: at the 4,6-, 1,6-, 1,2-, 2,3-, and 3,6-positions with respective S-, S-, R-, S-, and R-axial chirality. Among them, the most preferred 4,6-coupling reflected the what was observed for natural ellagitannins. A new finding was that the second best coupling occured at the 1,6-positions. With the detection of a 3,6-coupled product, this work demonstrated that even ellagitannin skeletons with an axial rich glucose core may be generated non-enzymatically. PMID- 29024259 TI - Selective Radical Fluorination of Tertiary Alkyl Halides at Room Temperature. AB - Direct fluorination of tertiary alkyl bromides and iodides with Selectfluor is described. The halogen-exchange fluorination proceeds efficiently in acetonitrile at room temperature under metal-free conditions and exhibits a wide range of functional group compatibility. Furthermore, the reactions are highly selective in that alkyl chlorides and primary and secondary alkyl bromides remain intact. A radical mechanism is proposed for this selective fluorination. PMID- 29024260 TI - Atrial fibrillation in heart failure with preserved ejection fraction: time to address the chicken and the egg. PMID- 29024261 TI - Pathologic significance of a novel oncoprotein in thyroid cancer progression. AB - BACKGROUND: The incidence of thyroid cancer is increasing worldwide, and there is an emerging need to develop accurate tools for diagnosis. Fine needle aspiration biopsy has greatly improved evaluation of thyroid nodules, but challenges with indeterminate lesions remain in up to 25% of biopsies. Novel tissue biomarkers may assist in improved nodule characterization. Microcalcifications occurring in thyroid cancers suggest proteins involved in bone formation may play a role in thyroid carcinogenesis. We evaluated the expression of the known osteogenic protein, Enigma, in thyroid cancer as a candidate oncoprotein and role in carcinogenesis based on association with other known oncoproteins such as bone morphogenetic protein-1 (BMP-1). METHODS: The expression of both Enigma and BMP-1 were evaluated by immunohistochemistry (IHC) in an equal number of benign (n = 120) and different histological subtypes of malignant (n = 120) human archival thyroid nodules with and without calcification. The colocalization of Enigma with BMP-1 was evaluated by confocal microscopy using the BZ analyzer. RESULTS: Enigma was strongly expressed in thyroid cancer tissue with a higher immunoreactive score in advanced thyroid cancer compared to less advanced and benign nodules. Enigma was localized either in cytoplasm or nucleus depending on the histological subtypes. Higher expression of Enigma was associated with the tumor size and lymph node involvement. There was clear and strong colocalization signal of Enigma and that of BMP-1. Expression of Enigma occurred without regard to calcification in cancer tissue. CONCLUSION: Enigma may serve as an oncoprotein marker, identifying benign from malignant thyroid tissue on FNA. Enigma may have a role in carcinogenesis of thyroid cancer independent of tissue calcification, possibly in relation to interaction with BMP-1. PMID- 29024262 TI - Ionic Self-Assembled Derivative of Tetraphenylethylene: Synthesis, Enhanced Solid State Emission, Liquid-Crystalline Structure, and Cu2+ Detection Ability. AB - A novel tetraphenylethylene complex composed of 4',4'',4''',4''''-(ethene-1,1,2,2 tetrayl)tetrabiphenyl-4-carboxylic acid (H4 ETTC) and dimethyldioctadecylammonium bromide (DOAB) with enhanced solid-state emission is designed and synthesized through an ionic self-assembly (ISA) strategy. The aggregation-induced emission property, phase behavior, and supramolecular structure of the complex are characterized by a combination of experimental measurements. The experimental results reveal that the ISA complex can self-assemble into an ordered helical supramolecular structure with enhanced luminescent properties, although the ETTC cores possess extensive conjugation and high rigidity. Due to the prolonged conjugation length, the fluorescence quantum yield of ETTC-DOAB is boosted to 66 %. Moreover, it is demonstrated that assemblies of the ISA complex are an effective sensor for Cu2+ . Owing to the disassembly modulation of ETTC-DOAB aggregations, the fluorescence emission of the assemblies can be selectively and sensitively quenched by Cu2+ , with a detection limit as low as 12.6 nm. The enhanced emission efficiency, in combination with the liquid crystallinity and superior sensing performance to Cu2+ , make the ETTC-DOAB complex a potential candidate for the fabrication of a luminescent device and chemosensor for Cu2+ detection. PMID- 29024263 TI - Field Distribution of Transcranial Static Magnetic Stimulation in Realistic Human Head Model. AB - OBJECTIVE: The objective of this work was to characterize the magnetic field (B field) that arises in a human brain model from the application of transcranial static magnetic field stimulation (tSMS). MATERIALS AND METHODS: The spatial distribution of the B-field magnitude and gradient of a cylindrical, 5.08 cm * 2.54 cm NdFeB magnet were simulated in air and in a human head model using the finite element method and calibrated with measurements in air. The B-field was simulated for magnet placements over prefrontal, motor, sensory, and visual cortex targets. The impact of magnetic susceptibility of head tissues on the B field was quantified. RESULTS: Peak B-field magnitude and gradient respectively ranged from 179-245 mT and from 13.3-19.0 T/m across the cortical targets. B field magnitude, focality, and gradient decreased with magnet-cortex distance. The variation in B-field strength and gradient across the anatomical targets largely arose from the magnet-cortex distance. Head magnetic susceptibilities had negligible impact on the B-field characteristics. The half-maximum focality of the tSMS B-field ranged from 7-12 cm3 . SIGNIFICANCE: This is the first presentation and characterization of the three-dimensional (3D) spatial distribution of the B-field generated in a human brain model by tSMS. These data can provide quantitative dosing guidance for tSMS applications across various cortical targets and subjects. The finding that the B-field gradient is high near the magnet edges should be considered in studies where neural tissue is placed close to the magnet. The observation that susceptibility has negligible effects confirms assumptions in the literature. PMID- 29024264 TI - Deutetrabenazine for tardive dyskinesia: A systematic review of the efficacy and safety profile for this newly approved novel medication-What is the number needed to treat, number needed to harm and likelihood to be helped or harmed? AB - OBJECTIVE: Deutetrabenazine is a deuterated formulation of tetrabenazine. The aim of this systematic review is to describe the efficacy, tolerability and safety of deutetrabenazine for the treatment of tardive dyskinesia (TD). DATA SOURCES: The pivotal registration trials were accessed by querying http://www.ncbi.nlm.nih.gov/pubmed/ and http://www.clinicaltrials.gov, for the search terms 'deutetrabenazine' OR 'SD-809', and by also querying the EMBASE (Elsevier) commercial database for clinical poster abstracts, and by asking the manufacturer for copies of posters presented at congresses. Product labelling provided additional information. STUDY SELECTION: All available clinical reports of studies were identified. DATA EXTRACTION: Descriptions of the principal results and calculation of number needed to treat (NNT) and number needed to harm (NNH) for relevant dichotomous outcomes were extracted from the available study reports and other sources of information. DATA SYNTHESIS: Deutetrabenazine, a reversible inhibitor of vesicular monoamine transporter type 2 (VMAT2), received approval for the treatment of TD in adults based on a clinical trial development programme that included two 12-week parallel group, randomised and placebo controlled studies. Deutetrabenazine dose is determined individually for each patient based on reduction of TD and tolerability. The recommended starting dose of deutetrabenazine for TD is 6 mg BID, administered with food, and can be increased at weekly intervals in increments of 6 mg/day to a maximum recommended daily dosage of 24 mg BID. The percentage of responders in the fixed-dose Phase III acute study, as defined by a rating of "much improved" or "very much improved" on the clinical global impression of change, was 46% for deutetrabenazine (pooled dose groups 12 and 18 mg BID) vs 26% for placebo, yielding a NNT of 5 (95% CI 3-19); the percentage of responders as defined by an improvement in Abnormal Involuntary Movement Scale (AIMS) severity score (sum of items 1-7) of 50% or more, was 34% for deutetrabenazine (pooled dose groups 12 and 18 mg BID) vs 12% for placebo, yielding a NNT of 5 (95% CI 3-11). Pooling the data across both short-term studies, NNT for AIMS response for the therapeutic doses of deutetrabenazine vs placebo was 7 (95% CI 4-18). Discontinuation because of an adverse event occurred among 3.6% of patients randomised to deutetrabenazine (any dose) vs 3.1% for placebo, yielding a NNH of 189 (not significant). The Likelihood to be Helped or Harmed comparing success (AIMS response) vs discontinuation because of an adverse event is 27. The most common adverse reactions (that occurred in >=4% of deutetrabenazine-treated patients with TD and greater than placebo) were nasopharyngitis and insomnia, with NNH values of 50 (not significant) and 34 (95% CI 18-725), respectively. CONCLUSIONS: Deutetrabenazine is the second FDA-approved agent specifically indicated for the treatment of TD. Head-to-head comparisons with other VMAT2 inhibitors among patients with TD in the "real world" are needed. PMID- 29024265 TI - Effectiveness of a handmade "New Carotid Catheter" in transradial carotid angiography: A comparison with conventional multipurpose catheters. AB - OBJECTIVE: The incidence and severity of carotid atherosclerosis increases in proportion with coronary artery disease and its severity. A special catheter specifically used for transradial carotid angiography has not yet been marketed. In this study, we investigate the feasibility and safety of our carotid catheter, which was made by reshaping currently available catheters. METHODS: Between 2010 and 2017, a total of 921 patients with indications for carotid angiography were identified after angiographic examinations and included in the study. Carotid angiography was performed in 403 patients (female, n = 161) using the 3.5 JL catheter, while in 518 (female, n = 207) patients, new catheters were employed. The new catheter was shaped like a hook in the laboratory with a heat gun. Demographic information and angiographic data from the patients in both groups were retrospectively analyzed. RESULTS: The baseline characteristics of both groups were comparable. When compared with the use of a 3.5 JL catheter, right transradial carotid angiographies performed with our new handmade catheter resulted in lesser amounts of opaque material used (55 mL vs 66 mL, P < 0.001) and shorter total fluoroscopy time, (3.60 +/- 1.85 min vs 3.14 +/- 1.55 min, P < 0.001). The handmade catheter also resulted in a higher success rate of selective visualization (97% vs 40%, P < 0.001). Rates of minor complication were comparable between the two catheters (6.5% vs 6.6% P = 234). Neither permanent damage nor morbidity or mortality was observed in either arm. DISCUSSION: Currently available catheters and methods are inadequate for routine transradial carotid angiography. For routine transradial carotid angiography, innovatively designed catheters are required. The catheter we developed for transradial carotid angiography was more successful than the conventional catheter in obtaining satisfactory images. High quality images can be obtained with the newly designed catheters. CONCLUSION: Transradial carotid angiography can be performed using our newly developed carotid catheter. The carotid arteries of patients with widespread coronary artery disease can be visualized, while asymptomatic patients carrying a high risk of stroke can be treated, preventing potential stroke occurrence. In a larger-scale comparative study, the favorable contributions of routine use of the new method and a decreased frequency of stroke may be demonstrated. PMID- 29024266 TI - Blockable Zn10 L15 Ion Channels through Subcomponent Self-Assembly. AB - Metal-organic anion channels based on Zn10 L15 pentagonal prisms have been prepared by subcomponent self-assembly. The insertion of these prisms into lipid membranes was investigated by ion-current and fluorescence measurements. The channels were found to mediate the transport of Cl- anions through planar lipid bilayers and into vesicles. Tosylate anions were observed to bind and plug the central channels of the prisms in the solid state and in solution. In membranes, dodecyl sulfate blocked chloride transport through the central channel. Our Zn10 L15 prism thus inserts into lipid bilayers to turn on anion transport, which can then be turned off through addition of the blocker dodecyl sulfate. PMID- 29024268 TI - Perception of Special Needs Dentistry education and practice amongst Australian dental auxiliary students. AB - INTRODUCTION: The role of dental auxiliaries in collaborative care of patients with special needs is compelling. This study was undertaken to investigate the perceptions of Special Needs Dentistry (SND) education and practice amongst students enrolled in Australian programmes in dental auxiliary, namely dental hygiene, dental therapy and oral health therapy (DH/DT/OHT). MATERIALS AND METHODS: All Australian institutions offering DH/DT/OHT programmes (n = 14) were invited to participate in a self-administered questionnaire survey, conducted online, involving students across all academic years. Twelve institutions agreed to participate, but only five institutions were included in the final analysis, with a student response rate of 31.1%. Answers to open-ended questions were coded and grouped for measurement of frequencies. Quantitative data were analysed via chi-squared and Fisher's exact tests (significance taken as P < .05). RESULTS: The majority of students could not define SND (87.0%) were not aware of the existence of this specialty (53.5%) and did not have clinical experience treating patients with special needs (68.9%). Nevertheless, they felt comfortable and positive about treating these patients independently. Most agreed that they should receive clinical and didactic education in SND, with many of them expressing interest in pursuing a specialty training in this field. CONCLUSION: DH/DT/OHT students' comfort levels, positive attitudes and supportiveness for SND suggested positive implications for these practitioners to partake in multidisciplinary management of patients with special needs, thus indicating the need for standardised training requirements and practice guidelines in this area of care. PMID- 29024267 TI - Novel T3SS effector EseK in Edwardsiella piscicida is chaperoned by EscH and EscS to express virulence. AB - Bacterium usually utilises type III secretion systems (T3SS) to deliver effectors directly into host cells with the aids of chaperones. Hence, it is very important to identify bacterial T3SS effectors and chaperones for better understanding of host-pathogen interactions. Edwardsiella piscicida is an invasive enteric bacterium, which infects a wide range of hosts from fish to human. Given E. piscicida encodes a functional T3SS to promote infection, very few T3SS effectors and chaperones have been identified in this bacterium so far. Here, we reported that EseK is a new T3SS effector protein translocated by E. piscicida. Bioinformatic analysis indicated that escH and escS encode two putative class I T3SS chaperones. Further investigation indicated that EscH and EscS can enhance the secretion and translocation of EseK. EscH directly binds EseK through undetermined binding domains, whereas EscS binds EseK via its N-terminal alpha helix. We also found that EseK has an N-terminal chaperone-binding domain, which binds EscH and EscS to form a ternary complex. Zebrafish infection experiments showed that EseK and its chaperones EscH and EscS are necessary for bacterial colonisation in zebrafish. This work identified a new T3SS effector, EseK, and its two T3SS chaperones, EscH and EscS, in E. piscicida, which enriches our knowledge of bacterial T3SS effector-chaperone interaction and contributes to our understanding of bacterial pathogenesis. PMID- 29024269 TI - Fluid Resuscitation in Patients With Severe Burns: A Meta-analysis of Randomized Controlled Trials. AB - OBJECTIVES: Fluid resuscitation is the mainstay treatment to reconstitute intravascular volume and maintain end-organ perfusion in patients with severe burns. The use of a hyperosmotic or isoosmotic solution in fluid resuscitation to manage myocardial depression and increased capillary permeability during burn shock has been debated. We conducted a systematic review and meta-analysis to compare the efficacies of hyperosmotic and isoosmotic solutions in restoring hemodynamic stability after burn injuries. METHODS: PubMed, Embase, Cochrane Library, Scopus, and ClinicalTrials.gov registry were searched. Randomized control trials evaluating the efficacy and safety of hyperosmotic and isoosmotic fluid resuscitation in patients with burn injuries were selected. Eligible trials were abstracted and assessed for the risk of bias by two reviewers and results of hemodynamic indicators in the included trials were analyzed. RESULTS: Ten trials including 502 participants were published between 1983 and 2013. Compared with isoosmotic group, the hyperosmotic group exhibited a significant decrease in the fluid load (vol/% total body surface area [TBSA]/weight) at 24 hours postinjury, with a mean difference of -0.54 (95% confidence interval = -0.92 to -0.17). No differences were observed in the urine output, creatinine level, and mortality at 24 hours postinjury between groups. CONCLUSIONS: Hyperosmotic fluid resuscitation appears to be an attractive choice for severe burns in terms of TBSA or burn depth. Further investigation is recommended before conclusive recommendation. PMID- 29024270 TI - Re: Transverse uterine fundal incision for placenta praevia with accreta, involving the entire anterior uterine wall: a case series. Spontaneous uterine rupture during the subsequent pregnancy after transverse uterine fundal incision for placenta praevia with accreta. PMID- 29024271 TI - Impact of the Long-Range Electronic Effect of a Fluorous Ponytail on Metal Coordination during Solvent Extraction. AB - With the need for a precise description of the long-range electronic effects of a perfloroalkyl chain (F-ponytail) grafted onto metal chelators, we studied in detail the effect of a spacer inserted between the polar complexing head and the F-ponytail, in relation to the metal coordination ability of the resulting molecules. The prepared molecules were then applied for the extraction of various metals from an aqueous phase into an organic phase, and the optimum spacer length could be estimated to be between three and four methylene units, according to the extraction conditions. The study also revealed the difficulty of modeling and anticipating the tiny energy differences involved in the extraction process and the importance in peculiar cases to go beyond only these studied inductive effects to understand better the factors that govern the stabilization of a metallic cation in a complex fluorous phase. PMID- 29024272 TI - Ligand- and Solvent-Controlled Regio- and Chemodivergent Carbonylative Reactions. AB - The development of highly selective procedures is one of the core goals in organic chemistry. Among the known organic transformations, carbonylation reactions present an ideal choice for the preparation of carbonyl-containing compounds. In this review, the recent achievements on the control of the selectivity for carbonylation reactions have been summarized. The effects of ligands, solvents, and bases on the selectivity are been discussed. PMID- 29024273 TI - The first brain: Species comparisons and evolutionary implications for the enteric and central nervous systems. AB - BACKGROUND: The enteric nervous system (ENS) and the central nervous system (CNS) of mammals both contain integrative neural circuitry and similarities between them have led to the ENS being described as the brain in the gut. PURPOSE: To explore relationships between the ENS and CNS across the animal kingdom. We found that an ENS occurs in all animals investigated, including hydra, echinoderms and hemichordates that do not have a CNS. The general form of the ENS, which consists of plexuses of neurons intrinsic to the gut wall and an innervation that controls muscle movements, is similar in species as varied and as far apart as hydra, sea cucumbers, annelid worms, octopus and humans. Moreover, neurochemical similarities across phyla imply a common origin of the ENS. Investigation of extant species suggests that the ENS developed in animals that preceded the division that led to cnidaria (exemplified by hydra) and bilateria, which includes the vertebrates. The CNS is deduced to be a bilaterian development, later than the divergence from cnidaria. Consistent with the ENS having developed independent of the CNS, reciprocal connections between ENS and CNS occur in mammals, and separate neurons of ENS and CNS origin converge on visceral organs and prevertebral ganglia. We conclude that an ENS arose before and independently of the CNS. Thus the ENS can be regarded as the first brain. PMID- 29024274 TI - Second-generation drug-eluting stents versus drug-coated balloons for the treatment of coronary in-stent restenosis: A systematic review and meta-analysis. AB - PURPOSE: The benefit of drug-eluting stents (DES) versus drug-coated balloons (DCB) in coronary artery in-stent restenosis (ISR) for the prevention of target lesion revascularization (TLR), stent thrombosis, and mortality remains uncertain. Our aim was to synthesize the available evidence from randomized clinical trials (RCTs) and observational studies that directly compare second generation drug-eluting stents (SG-DES) and DCB for the treatment of coronary ISR. METHODS: Medline, Embase, and Cochrane Central were searched for RCTs or observational studies, published up to March 15, 2017. A random effects model meta-analysis investigating clinical and angiographic outcomes was conducted for RCTs and observational studies that compared SG-DES versus DCB for the treatment of ISR. RESULTS: Ten studies and 2,173 patients were included in this meta analysis. The two treatment strategies were proven equal with regards to TLR, myocardial infarction, stent thrombosis, and cardiac mortality in both randomized and observational studies. No difference was found among RCTs for all-cause mortality, while in observational studies, patients who were treated with SG-DES had a lower mortality compared to DCB (OR: 0.47; 95% CI: 0.27-0.83). In the pooled analysis also (RCTs and observational studies), SG-DES were associated with lower all-cause mortality compared to DCB. Patients treated with SG-DES were also superior in terms of minimal lumen diameter (standardized mean difference: 0.39; 95% CI: 0.12-0.66). CONCLUSIONS: The two treatment strategies are equal for the treatment of ISR, while the difference in all-cause mortality might be potentially explained by baseline differences in the two groups among real-world studies. PMID- 29024275 TI - The Structure of Diphenyl Ether-Methanol in the Electronically Excited and Ionic Ground States: A Combined IR/UV Spectroscopic and Theoretical Study. AB - Diphenyl ether offers competing docking sites for methanol: the ether oxygen acts as a common hydrogen-bond acceptor and the pi system of each phenyl ring allows for OH-pi interactions driven by electrostatic, induction, and dispersion forces. Based on investigations in the electronic ground state (S0 ), we present a detailed study of the electronically excited state (S1 ) and the ionic ground state (D0 ), in which an impact on the structural preference is expected compared with the S0 state. Dispersion forces in the electronically excited state were analyzed by comparing the computed binding energies at the coupled-cluster singles (CCS) and approximate coupled-cluster-singles-doubles levels of theory (CC2 approximation). By applying UV/IR/UV spectroscopy, we found a more strongly bound OH-pi structure in the S1 state compared with the S0 state, in agreement with spin-component-scaled CC2 calculations. A structural rearrangement into a non-hydrogen-bonded structure takes places upon ionization in the D0 state, which was revealed by using IR photodissociation spectroscopy and confirmed by theory. PMID- 29024276 TI - Large plaque-type blue naevus with cellular nodules: a rare unrecognized melanocytic tumour. PMID- 29024277 TI - How intraspecific variation in seed-dispersing animals matters for plants. AB - Seed dispersal by animals is a complex phenomenon, characterized by multiple mechanisms and variable outcomes. Most researchers approach this complexity by analysing context-dependency in seed dispersal and investigating extrinsic factors that might influence interactions between plants and seed dispersers. Intrinsic traits of seed dispersers provide an alternative way of making sense of the enormous variation in seed fates. I review causes of intraspecific variability in frugivorous and granivorous animals, discuss their effects on seed dispersal, and outline likely consequences for plant populations and communities. Sources of individual variation in seed-dispersing animals include sexual dimorphism, changes associated with growth and ageing, individual specialization, and animal personalities. Sexual dimorphism of seed-dispersing animals influences seed fate through diverse mechanisms that range from effects caused by sex specific differences in body size, to influences of male versus female cognitive functions. These differences affect the type of seed treatment (e.g. dispersal versus predation), the number of dispersed seeds, distance of seed dispersal, and likelihood that seeds are left in favourable sites for seeds or seedlings. The best-documented consequences of individual differences associated with growth and ageing involve quantity of dispersed seeds and the quality of seed treatment in the mouth and gut. Individual specialization on different resources affects the number of dispersed plant species, and therefore the connectivity and architecture of seed-dispersal networks. Animal personalities might play an important role in shaping interactions between plants and dispersers of their seeds, yet their potential in this regard remains overlooked. In general, intraspecific variation in seed-dispersing animals often influences plants through effects of these individual differences on the movement ecology of the dispersers. Two conditions are necessary for individual variation to exert a strong influence on seed dispersal. First, the individual differences in traits should translate into differences in crucial characteristics of seed dispersal. Second, individual variation is more likely to be important when the proportions of particular types of individuals fluctuate strongly in a population or vary across space; when proportions are static, it is less likely that intraspecific differences will be responsible for changes in the dynamics and outcomes of plant animal interactions. In conclusion, focusing on variation among foraging animals rather than on species averages might bring new, mechanistic insights to the phenomenon of seed dispersal. While this shift in perspective is unlikely to replace the traditional approach (based on the assumption that all important variation occurs among species), it provides a complementary alternative to decipher the enormous variation observed in animal-mediated seed dispersal. PMID- 29024278 TI - Why do SGLT2 inhibitors reduce heart failure hospitalization? A differential volume regulation hypothesis. AB - The effect of a sodium glucose cotransporter 2 inhibitor (SGLT2i) in reducing heart failure hospitalization in the EMPA-REG OUTCOMES trial has raised the possibility of using these agents to treat established heart failure. We hypothesize that osmotic diuresis induced by SGLT2 inhibition, a distinctly different diuretic mechanism than that of other diuretic classes, results in greater electrolyte-free water clearance and, ultimately, in greater fluid clearance from the interstitial fluid (IF) space than from the circulation, potentially resulting in congestion relief with minimal impact on blood volume, arterial filling and organ perfusion. We utilize a mathematical model to illustrate that electrolyte-free water clearance results in a greater reduction in IF volume compared to blood volume, and that this difference may be mediated by peripheral sequestration of osmotically inactive sodium. By coupling the model with data on plasma and urinary sodium and water in healthy subjects who received either the SGLT2i dapagliflozin or loop diuretic bumetanide, we predict that dapagliflozin produces a 2-fold greater reduction in IF volume compared to blood volume, while the reduction in IF volume with bumetanide is only 78% of the reduction in blood volume. Heart failure is characterized by excess fluid accumulation, in both the vascular compartment and interstitial space, yet many heart failure patients have arterial underfilling because of low cardiac output, which may be aggravated by conventional diuretic treatment. Thus, we hypothesize that, by reducing IF volume to a greater extent than blood volume, SGLT2 inhibitors might provide better control of congestion without reducing arterial filling and perfusion. PMID- 29024279 TI - Computed tomographic-lymphography as a complementary technique for lymph node staging in dogs with malignant tumors of various sites. AB - Locoregional lymph nodes are routinely examined in order to define the spatial extent of neoplastic disease. As draining patterns of certain tumor types can be divergent from expected anatomical distribution, it is critical to sample the lymph nodes truly representing the draining area. The aim of this bicenter prospective pilot study was to describe the technique of computed tomographic (CT)-lymphography for primary draining lymph node mapping in tumor staging in dogs. Forty-five dogs with macro- or microscopic tumors in specified localizations were evaluated. Depending on body weight, 0.8-2 ml contrast agent (iohexol) was injected into four quadrants around the tumor, and CT-images were obtained at 1, 3, 6, 9, and 12 minutes post-injection. Attenuation of chosen regions of interest (Hounsfield units (HU)) and patterns of enhancement were assessed for 284 lymph nodes in the precontrast study with median HUs of 31.1 (Interquartile range (IQR) = 18.4) and for 275 in the intravenous postcontrast study with 104.3 HU (IQR = 31.2) (paired Wilcoxon test, P < 0.001). In the CT lymphography study, 45 primary draining lymph nodes with a significantly higher median HU value of 348.5 (IQR = 591.4) (one-sample t-test, P < 0.001) were identified. Primary draining lymph nodes were found to be clearly visible after 1 3 minutes after local injection, often concurrent with a good visibility of the lymphatic vessel system. The herein described technique of peritumorally injected CT-contrast agent followed by subsequent CT-lymphography for primary draining lymph node mapping works well in a majority of cases in all investigated sites and warrants further validation for different tumor entities. PMID- 29024280 TI - Laparoscopic pancreaticoduodenectomy in Brisbane, Australia: an initial experience. AB - BACKGROUND: The role of minimally invasive approach for pancreaticoduodenectomy has not yet been well defined in Australia. We present our early experience with laparoscopic pancreaticoduodenectomy (LPD) from Brisbane, Australia. METHODS: Retrospective review in a prospectively collected database of patients undergoing LPD between 2006 and 2016 was performed. Patients who underwent a hybrid LPD (HLPD) mobilization approach and resection followed by open reconstruction and totally LPD (TLPD) approach were included in this study. Operative characteristics, perioperative outcomes, pathological and survival data were collected. RESULTS: Twenty-seven patients underwent LPD including 17 HLPD (63%) and 10 TLPD (37%) patients. HLPD patients were mostly converted to open for planned reconstruction or vascular resection. With increasing experience, more TLPDs were performed, including laparoscopic anastomoses. Median operating time was 462 min (504 min for TLPD). Median length of hospital stay was 10 days. Histology showed 21 invasive malignancies, two neuroendocrine tumours, two intraductal papillary mucinous neoplasms and two benign lesions. Median nodal harvest was 22. Margin negative resection was achieved in 84% of patients. Twenty two percent of patients developed a Grade 3/4 complication, including 19% clinically significant pancreatic fistula. There was one perioperative mortality (4%) due to pancreatic fistula, post-operative haemorrhage and sepsis. CONCLUSIONS: LPD is a technically challenging operation with a steep learning curve. The early oncological outcomes appear satisfactory. It remains to be determined whether the minimally invasive approach to pancreaticoduodenectomy offers benefits to patients. PMID- 29024281 TI - Development of a Sensitive Microarray Platform for the Ranking of Galectin Inhibitors: Identification of a Selective Galectin-3 Inhibitor. AB - Glycan microarrays are useful tools for lectin glycan profiling. The use of a glycan microarray based on evanescent-field fluorescence detection was herein further extended to the screening of lectin inhibitors in competitive experiments. The efficacy of this approach was tested with 2/3'-mono- and 2,3' diaromatic type II lactosamine derivatives and galectins as targets and was validated by comparison with fluorescence anisotropy proposed as an orthogonal protein interaction measurement technique. We showed that subtle differences in the architecture of the inhibitor could be sensed that pointed out the preference of galectin-3 for 2'-arylamido derivatives over ureas, thioureas, and amines and that of galectin-7 for derivatives bearing an alpha substituent at the anomeric position of glucosamine. We eventually identified a diaromatic oxazoline as a highly specific inhibitor of galectin-3 versus galectin-1 and galectin-7. PMID- 29024282 TI - Anion Relay Chemistry: Development of an Effective Diastereoselective [3+2] Annulation Tactic Exploiting an Aldol/Brook Rearrangement/Cyclization Cascade. AB - An effective [3+2] annulation tactic for the construction of diverse bicyclic compounds possessing highly functionalized cyclopentane rings has been developed employing soft ketone enolates as the initial nucleophile for anion relay chemistry (ARC). The protocol entails a highly diastereoselective aldol/Brook rearrangement/cyclization cascade. PMID- 29024283 TI - Mechanisms of human cytomegalovirus infection with a focus on epidermal growth factor receptor interactions. AB - Human cytomegalovirus (HCMV) is a widespread opportunistic herpesvirus that causes severe diseases in immunocompromised individuals. It has a high prevalence worldwide that is linked with socioeconomic factors. Similar to other herpesviruses, HCMV has the ability to establish lifelong persistence and latent infection following primary exposure. HCMV infects a broad range of cell types. This broad tropism suggests that it may use multiple receptors for host cell entry. The identification of receptors used by HCMV is essential for understanding viral pathogenesis, because these receptors mediate the early events necessary for infection. Many cell surface components have been identified as virus receptors, such as epidermal growth factor receptor (EGFR), which is characterized by tyrosine kinase activity and plays a crucial role in the control of key cellular transduction pathways. EGFR is essential for HCMV binding, signaling, and host cell entry. This review focuses on HCMV infection via EGFR on different cell types and its implications for the cellular environment, viral persistence, and infection. PMID- 29024284 TI - How do people with long-term mental health problems negotiate relationships with network members at times of crisis? AB - BACKGROUND: Social network processes impact on the genesis and management of mental health problems. There is currently less understanding of the way people negotiate networked relationships in times of crisis compared to how they manage at other times. OBJECTIVE: This paper explores the patterns and nature of personal network involvement at times of crises and how these may differ from day to-day networks of recovery and maintenance. METHOD: Semi-structured interviews with 25 participants with a diagnosis of long-term mental health (MH) problems drawn from recovery settings in the south of England. Interviews centred on personal network mapping of members and resources providing support. The mapping interviews explored the work of network members and changes in times of crisis. Interviews were recorded, transcribed and analysed using a framework analysis. RESULTS: Three key themes were identified: the fluidity of network relationality between crisis and recovery; isolation as a means of crises management; leaning towards peer support. Personal network input retreated at times of crisis often as result of "ejection" from the network by participants who used self-isolation as a personal management strategy in an attempt to deal with crises. Peer support is considered useful during a crisis, whilst the role of services was viewed with some ambiguity. CONCLUSIONS: Social networks membership, and type and depth of involvement, is subject to change between times of crisis and everyday support. This has implications for managing mental health in terms of engaging with network support differently in times of crises versus recovery and everyday living. PMID- 29024285 TI - Effect of a high-cholesterol diet on lipoprotein metabolism and xanthoma formation in rabbits. AB - BACKGROUND: Xanthelasma is the most common type of cutaneous xanthoma and often occurs on the eyelids. Xanthoma has been reported to be highly correlated with abnormal lipoprotein metabolism. AIMS: In this study, we wanted to investigate the effects of a high-cholesterol diet on xanthoma formation and lipoprotein metabolism in rabbits. METHODS: In animals fed with high-cholesterol diet, deteced plasma lipid [ie, total cholesterol (TC), triglycerides (TG), and low density lipoprotein cholesterol (L-DLC)] levels and pathology of xanthoma. RESULTS: Plasma lipid levels were dramatically elevated within 8 weeks. In addition, high dietary cholesterol promoted xanthoma formation on the napex. Microscopic examination showed that foam cells laden with cholesterol deposits accumulated around the dermal capillaries and cutaneous appendages within the skin of the napex. CONCLUSION: These findings indicate a critical role for a high cholesterol diet in the dysregulation of lipoprotein metabolism and the development of xanthoma in rabbits. The results suggest that abnormal lipid metabolism may increase the occurrence of xanthoma. PMID- 29024286 TI - Modelling cumulative exposure for inference about drug effects in observational studies. AB - PURPOSE: To demonstrate a modelling approach that controls for time-invariant allocation bias in estimation of associations of outcome with drug exposure. METHODS: We show that in a model that includes terms for both ever-exposure versus never-exposure and cumulative exposure, the parameter for ever-exposure represents the effect of time-invariant allocation bias, and the parameter for cumulative exposure represents the effect of the drug after adjustment for this unmeasured confounding. This assumes no stepwise effect of the drug on the event rate, no reverse causation, and no unmeasured time-varying confounders. We demonstrated this by modelling the effect of statins on cardiovascular disease, for which the true effect has been well characterised in randomised trials, using time-updated Cox regression models in a national cohort of Type 2 diabetes patients. RESULTS: The crude hazard ratio associated with ever-use of statins was 1.13 in a standard cohort analysis comparing exposed with unexposed person-time intervals. When ever-never use and cumulative exposure are modelled jointly, the effect of statins can be estimated from the cumulative exposure parameter (hazard ratio 0.97 per year of exposure, 95% CI 0.97 to 0.98). The ever-exposed term (hazard ratio 1.20, 1.16 to 1.23) in this model can be interpreted as estimating the allocation bias. CONCLUSIONS: Where stepwise effects on the risk of adverse events are unlikely, as for instance for effects on risk of cancer, joint modelling of ever-never and cumulative exposure can be used to study the effects of multiple drugs and to distinguish causal effects from confounding by allocation. PMID- 29024287 TI - Inflammation and cardio-renal interactions in heart failure: a potential role for interleukin-6. PMID- 29024288 TI - High-resolution mapping of the pericentromeric region on wheat chromosome arm 5AS harbouring the Fusarium head blight resistance QTL Qfhs.ifa-5A. AB - The Qfhs.ifa-5A allele, contributing to enhanced Fusarium head blight resistance in wheat, resides in a low-recombinogenic region of chromosome 5A close to the centromere. A near-isogenic RIL population segregating for the Qfhs.ifa-5A resistance allele was developed and among 3650 lines as few as four recombined within the pericentromeric C-5AS1-0.40 bin, yielding only a single recombination point. Genetic mapping of the pericentromeric region using a recombination dependent approach was thus not successful. To facilitate fine-mapping the physically large Qfhs.ifa-5A interval, two gamma-irradiated deletion panels were generated: (i) seeds of line NIL3 carrying the Qfhs.ifa-5A resistance allele in an otherwise susceptible background were irradiated and plants thereof were selfed to obtain deletions in homozygous state and (ii) a radiation hybrid panel was produced using irradiated pollen of the wheat line Chinese Spring (CS) for pollinating the CS-nullisomic5Atetrasomic5B. In total, 5157 radiation selfing and 276 radiation hybrid plants were screened for deletions on 5AS and plants containing deletions were analysed using 102 5AS-specific markers. Combining genotypic information of both panels yielded an 817-fold map improvement (cR/cM) for the centromeric bin and was 389-fold increased across the Qfhs.ifa-5A interval compared to the genetic map, with an average map resolution of 0.77 Mb/cR. We successfully proved that the RH mapping technique can effectively resolve marker order in low-recombining regions, including pericentromeric intervals, and simultaneously allow developing an in vivo panel of sister lines differing for induced deletions across the Qfhs.ifa-5A interval that can be used for phenotyping. PMID- 29024289 TI - Diastereoselective C-H Bond Amination for Disubstituted Pyrrolidines. AB - We report herein the improved diastereoselective synthesis of 2,5-disubstituted pyrrolidines from aliphatic azides. Experimental and theoretical studies of the C H amination reaction mediated by the iron dipyrrinato complex (Ad L)FeCl(OEt2 ) provided a model for diastereoinduction and allowed for systematic variation of the catalyst to enhance selectivity. Among the iron alkoxide and aryloxide catalysts evaluated, the iron phenoxide complex exhibited superior performance towards the generation of syn 2,5-disubstituted pyrrolidines with high diastereoselectivity. PMID- 29024290 TI - Novel bisthioether derivatives containing a 1,3,4-oxadiazole moiety: design, synthesis, antibacterial and nematocidal activities. AB - BACKGROUND: The literature shows that bisthioether and 1,3,4-oxadiazole derivatives exhibit a wide variety of biological activities. In this study, a series of novel bisthioether derivatives containing a 1,3,4-oxadiazole moiety were synthesized and their antibacterial and nematocidal activities investigated. RESULTS: Among the title compounds evaluated, compound 4f demonstrated the best antibacterial activities against rice bacterial leaf blight, rice bacterial leaf streak and citrus canker caused by Xanthomonas oryzae pv. oryzae (Xoo), Xanthomonas oryzae pv. oryzicola (Xoc) and Xanthomonas axonopodis pv. citri (Xac), with EC50 values of 4.82, 11.15 and 16.57 ug mL-1 , respectively, which were even better than those of thiodiazole copper and bismerthiazol. Meanwhile, compound 4f had better in vitro nematocidal activity against Caenorhabditis elegans at 48 h, with an LC50 value of 2.89 ug mL-1 , which was superior to those of ethoprophos and fosthiazate. In addition, greenhouse trials indicated that compound 4f was effective in reducing rice bacterial leaf blight relative to thiodiazole copper and bismerthiazol. CONCLUSION: A series of novel bisthioether derivatives containing a 1,3,4-oxadiazole moiety were synthesized and bioassay results showed that compound 4f exhibited the best antibacterial and nematocidal activities. (c) 2017 Society of Chemical Industry. PMID- 29024292 TI - Hepatic cystic echinococcosis in Australia: an update on diagnosis and management. AB - BACKGROUND: Echinococcosis is an uncommonly encountered zoonotic disease caused by the taeniid Echinococcus. The only endemic species in Australia, Echinococcus granulosus, forms cysts in the liver in 70% of cases. The aim of this study was to review the literature to provide an evidence-based narrative update on the diagnosis and management of hepatic cystic echinococcosis in Australia. METHODS: We reviewed the literature, utilizing multiple research databases and citation tracking. Original research and review articles examining the diagnosis and management of hydatid disease in adults, published prior to 2016 and in the English language were included in our review. RESULTS: Ultrasound is the gold standard screening test, whilst computed tomography has a role in emergency presentations and screening for multi-organ involvement. Magnetic resonance imaging is the preferred second-line imaging and better demonstrates biliary involvement. Medical therapy or PAIR (percutaneous aspiration, irrigation with scolicide and re-aspiration) may be appropriate in selected cases; however, surgery remains the definitive treatment for active, large (>5 cm), symptomatic or complicated cysts. A variety of surgical techniques have been described, including conservative, radical and minimally invasive procedures. There is currently no consensus approach; surgical modality should be tailored to patient factors, relevant anatomy, local facilities and surgeons' expertise. CONCLUSION: Diagnosis and therapy in hepatic hydatid cysts have been significantly advanced by imaging, interventional radiology and surgical approaches in recent years. Surgery remains the mainstay of treatment for large, active, complicated or symptomatic hepatic hydatid cysts. PMID- 29024291 TI - Phosphorylation coexists with O-GlcNAcylation in a plant virus protein and influences viral infection. AB - Phosphorylation and O-GlcNAcylation are two widespread post-translational modifications (PTMs), often affecting the same eukaryotic target protein. Plum pox virus (PPV) is a member of the genus Potyvirus which infects a wide range of plant species. O-GlcNAcylation of the capsid protein (CP) of PPV has been studied extensively, and some evidence of CP phosphorylation has also been reported. Here, we use proteomics analyses to demonstrate that PPV CP is phosphorylated in vivo at the N-terminus and the beginning of the core region. In contrast with the 'yin-yang' mechanism that applies to some mammalian proteins, PPV CP phosphorylation affects residues different from those that are O-GlcNAcylated (serines Ser-25, Ser-81, Ser-101 and Ser-118). Our findings show that PPV CP can be concurrently phosphorylated and O-GlcNAcylated at nearby residues. However, an analysis using a differential proteomics strategy based on iTRAQ (isobaric tags for relative and absolute quantitation) showed a significant enhancement of phosphorylation at Ser-25 in virions recovered from O-GlcNAcylation-deficient plants, suggesting that crosstalk between O-GlcNAcylation and phosphorylation in PPV CP takes place. Although the preclusion of phosphorylation at the four identified phosphotarget sites only had a limited impact on viral infection, the mimicking of phosphorylation prevents PPV infection in Prunus persica and weakens infection in Nicotiana benthamiana and other herbaceous hosts, prompting the emergence of potentially compensatory second mutations. We postulate that the joint action of phosphorylation and O-GlcNAcylation in the N-proximal segment of CP allows a fine-tuning of protein stability, providing the amount of CP required in each step of viral infection. PMID- 29024295 TI - Spotlights on our sister journals: Angew. Chem. Int. Ed. 43/2017. PMID- 29024293 TI - 3D Porous Hydrogel/Conducting Polymer Heterogeneous Membranes with Electro-/pH Modulated Ionic Rectification. AB - Heterogeneous membranes composed of asymmetric structures or compositions have enormous potential in sensors, molecular sieves, and energy devices due to their unique ion transport properties such as ionic current rectification and ion selectivity. So far, heterogeneous membranes with 1D nanopores have been extensively studied. However, asymmetric structures with 3D micro-/nanoscale pore networks have never been investigated. Here, a simple and versatile approach to low-costly fabricate hydrogel/conducting polymer asymmetric heterogeneous membranes with electro-/pH-responsive 3D micro-/nanoscale ion channels is introduced. Due to the asymmetric heterojunctions between positively charged nanoporous polypyrrole (PPy) and negatively charged microscale porous hydrogel poly (acrylamide-co-acrylic acid) (P(AAm-co-AA)), the membrane can rectify ion transmembrane transport in response to both electro- and pH-stimuli. Numerical simulations based on coupled Poisson and Nernst-Plank equations are carried out to explain the ionic rectification mechanisms for the membranes. The membranes are not dependent on elaborately fabricated 1D ion channel substrates and hence can be facilely prepared in a low-cost and large-area way. The hybridization of hydrogel and conducting polymer offers a novel strategy for constructing low cost, large-area and multifunctional membranes, expanding the tunable ionic rectification properties into macroscopic membranes with micro-/nanoscale pores, which would stimulate practical applications of the membranes. PMID- 29024294 TI - Cognitive, motor, behavioural and academic performances of children born preterm: a meta-analysis and systematic review involving 64 061 children. AB - BACKGROUND: Preterm birth may leave the brain vulnerable to dysfunction. Knowledge of future neurodevelopmental delay in children born with various degrees of prematurity is needed to inform practice and policy. OBJECTIVE: To quantify the long-term cognitive, motor, behavioural and academic performance of children born with different degrees of prematurity compared with term-born children. SEARCH STRATEGY: PubMed and Embase were searched from January 1980 to December 2016 without language restrictions. SELECTION CRITERIA: Observational studies that reported neurodevelopmental outcomes from 2 years of age in children born preterm compared with a term-born cohort. DATA COLLECTION AND ANALYSIS: We pooled individual estimates of standardised mean differences (SMD) and odds ratios (OR) with 95% confidence intervals using a random effects model. MAIN RESULTS: We included 74 studies (64 061 children). Preterm children had lower cognitive scores for FSIQ (SMD: -0.70; 95% CI: -0.73 to -0.66), PIQ (SMD: -0.67; 95% CI: -0.73 to -0.60) and VIQ (SMD: -0.53; 95% CI: -0.60 to -0.47). Lower scores for preterm children in motor skills, behaviour, reading, mathematics and spelling were observed at primary school age, and this persisted to secondary school age, except for mathematics. Gestational age at birth accounted for 38-48% of the observed IQ variance. ADHD was diagnosed twice as often in preterm children (OR: 1.6; 95% CI: 1.3-1.8), with a differential effect observed according to the severity of prematurity (I2 = 49.4%, P = 0.03). CONCLUSIONS: Prematurity of any degree affects the cognitive performance of children born preterm. The poor neurodevelopment persists at various ages of follow up. Parents, educators, healthcare professionals and policy makers need to take into account the additional academic, emotional and behavioural needs of these children. TWEETABLE ABSTRACT: Adverse effect of preterm birth on a child's neurodevelopment persists up to adulthood. PMID- 29024296 TI - Evolving Accelerated Amidation by SpyTag/SpyCatcher to Analyze Membrane Dynamics. AB - SpyTag is a peptide that forms a spontaneous amide bond with its protein partner SpyCatcher. This protein superglue is a broadly useful tool for molecular assembly, locking together biological building blocks efficiently and irreversibly in diverse architectures. We initially developed SpyTag and SpyCatcher by rational design, through splitting a domain from a Gram-positive bacterial adhesin. In this work, we established a phage-display platform to select for specific amidation, leading to an order of magnitude acceleration for interaction of the SpyTag002 variant with the SpyCatcher002 variant. We show that the 002 pair bonds rapidly under a wide range of conditions and at either protein terminus. SpyCatcher002 was fused to an intimin derived from enterohemorrhagic Escherichia coli. SpyTag002 reaction enabled specific and covalent decoration of intimin for live cell fluorescent imaging of the dynamics of the bacterial outer membrane as cells divide. PMID- 29024298 TI - Detailed Evidence for an Unparalleled Interaction Mode between Calmodulin and Orai Proteins. AB - Calmodulin (CaM) binds most of its targets by wrapping around an amphipathic alpha-helix. The N-terminus of Orai proteins contains a conserved CaM-binding segment but the binding mechanism has been only partially characterized. Here, microscale thermophoresis (MST), surface plasmon resonance (SPR), and atomic force microscopy (AFM) were employed to study the binding equilibria, the kinetics, and the single-molecule interaction forces involved in the binding of CaM to the conserved helical segments of Orai1 and Orai3. The results consistently indicated stepwise binding of two separate target peptides to the two lobes of CaM. An unparalleled high affinity was found when two Orai peptides were dimerized or immobilized at high lateral density, thereby mimicking the close proximity of the N-termini in native Orai oligomers. The analogous experiments with smooth muscle myosin light chain kinase (smMLCK) showed only the expected 1:1 binding, confirming the validity of our methods. PMID- 29024297 TI - Reducing dose to the lungs through loosing target dose homogeneity requirement for radiotherapy of non small cell lung cancer. AB - It is important to minimize lung dose during intensity-modulated radiation therapy (IMRT) of nonsmall cell lung cancer (NSCLC). In this study, an approach was proposed to reduce lung dose by relaxing the constraint of target dose homogeneity during treatment planning of IMRT. Ten NSCLC patients with lung tumor on the right side were selected. The total dose for planning target volume (PTV) was 60 Gy (2 Gy/fraction). For each patient, two IMRT plans with six beams were created in Pinnacle treatment planning system. The dose homogeneity of target was controlled by constraints on the maximum and uniform doses of target volume. One IMRT plan was made with homogeneous target dose (the resulting target dose was within 95%-107% of the prescribed dose), while another IMRT plan was made with inhomogeneous target dose (the resulting target dose was more than 95% of the prescribed dose). During plan optimization, the dose of cord and heart in two types of IMRT plans were kept nearly the same. The doses of lungs, PTV and organs at risk (OARs) between two types of IMRT plans were compared and analyzed quantitatively. For all patients, the lung dose was decreased in the IMRT plans with inhomogeneous target dose. On average, the mean dose, V5, V20, and V30 of lung were reduced by 1.4 Gy, 4.8%, 3.7%, and 1.7%, respectively, and the dose to normal tissue was also reduced. These reductions in DVH values were all statistically significant (P < 0.05). There were no significant differences between the two IMRT plans on V25, V30, V40, V50 and mean dose for heart. The maximum doses of cords in two type IMRT plans were nearly the same. IMRT plans with inhomogeneous target dose could protect lungs better and may be considered as a choice for treating NSCLC. PMID- 29024299 TI - Reproducibility of R-fMRI metrics on the impact of different strategies for multiple comparison correction and sample sizes. AB - Concerns regarding reproducibility of resting-state functional magnetic resonance imaging (R-fMRI) findings have been raised. Little is known about how to operationally define R-fMRI reproducibility and to what extent it is affected by multiple comparison correction strategies and sample size. We comprehensively assessed two aspects of reproducibility, test-retest reliability and replicability, on widely used R-fMRI metrics in both between-subject contrasts of sex differences and within-subject comparisons of eyes-open and eyes-closed (EOEC) conditions. We noted permutation test with Threshold-Free Cluster Enhancement (TFCE), a strict multiple comparison correction strategy, reached the best balance between family-wise error rate (under 5%) and test-retest reliability/replicability (e.g., 0.68 for test-retest reliability and 0.25 for replicability of amplitude of low-frequency fluctuations (ALFF) for between subject sex differences, 0.49 for replicability of ALFF for within-subject EOEC differences). Although R-fMRI indices attained moderate reliabilities, they replicated poorly in distinct datasets (replicability < 0.3 for between-subject sex differences, < 0.5 for within-subject EOEC differences). By randomly drawing different sample sizes from a single site, we found reliability, sensitivity and positive predictive value (PPV) rose as sample size increased. Small sample sizes (e.g., < 80 [40 per group]) not only minimized power (sensitivity < 2%), but also decreased the likelihood that significant results reflect "true" effects (PPV < 0.26) in sex differences. Our findings have implications for how to select multiple comparison correction strategies and highlight the importance of sufficiently large sample sizes in R-fMRI studies to enhance reproducibility. Hum Brain Mapp 39:300-318, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024301 TI - Concise Review: Emerging Principles from the Clinical Application of Chimeric Antigen Receptor T Cell Therapies for B Cell Malignancies. AB - Gene-engineered T cell therapies are soon to be United States Food and Drug Administration (FDA) approved for at least two types of B cell malignancies in pediatric and adult patients, in the form of CD19 targeted chimeric antigen receptor T (CAR T) cell therapy. This represents a triumph of a true bench to bedside clinical translation of a therapy that was conceived of in the early 1990s. Clinical results have demonstrated efficacious responses in patients with the CD19 positive diseases B cell acute lymphoblastic leukemia and diffuse large B cell lymphoma. However, significant challenges have emerged, including worrisome immune-related toxicities, therapy resistance, and understanding how to administer CD19 CAR T cells in clinical practice. Although much remains to be learned, pioneering clinical trials have led to foundational insights about the clinical translation of this novel therapy. Here, we review the "lessons learned" from the pre-clinical and human experience with CAR T cell therapy. Stem Cells 2018;36:36-44. PMID- 29024303 TI - The influence of crown-to-implant ratio on marginal bone levels around splinted short dental implants: A radiological and clincial short term analysis. AB - BACKGROUND: The amount of marginal bone resorption around dental implants is considered to have a significant impact on implant stability as well as implant survival rates. PURPOSE: The aim of this prospective study was to investigate the influence of prosthetic as well as patient specific factors on marginal bone loss around short dental implants. MATERIALS AND METHODS: Seventy-six implants, which supported splinted crowns were included for investigation. All implants were from the same type and had an intraosseous length of 6.5 mm and a diameter of 4.0 mm. Twenty implants were additionally splinted onto longer ones. Measurements of marginal bone loss were performed at a mean of 12.38 months after prosthetic loading and the mean follow-up for clinical evaluation was 20.52 months. RESULTS: Overall two implant failures were recorded, revealing a survival rate of 97.3%. Marginal bone resorption around 72 short implants measured 0.71 mm (SD: 0.74 mm) and was found to have a strong correlation with calculated Crown-to-Implant ratio (r = .71; P < .001). Age, gender, insertion torque, implant surface area, location, position, bone quality, and insertion torque did not influence peri implant bone loss after one year of loading. CONCLUSION: Within the limitations of the study, it is suggested that Crown-to-Implant ratios should not exceed 1.7 to avoid increased early marginal bone loss. PMID- 29024304 TI - Efficacy of alprostadil in preventing contrast-induced nephropathy in patients undergoing percutaneous coronary intervention: A multicenter prospective randomized controlled trial. AB - BACKGROUND: The role of alprostadil on the prevention of contrast-induced nephropathy (CIN) still remains controversial. The purpose of this study was to examine the effects of short-term alprostadil on the incidence of CIN in patients undergoing elective percutaneous coronary intervention (PCI). METHODS: A total of 480 patients with coronary heart disease undergoing PCI were enrolled in our study and randomly assigned to two groups. The control group (n = 240) was given only hydration therapy and the alprostadil group (n = 240) received intravenous administration of 20 ug/day (diluted with 100 ml normal saline) from 0.5~1 hr before to 3 days after operation on the basis of hydration. The primary endpoint of the study was the incidence of CIN, which was defined as an increase in SCr concentration >= 44.2 umol/l or >=25% above baseline within 48 hr~72 hr after exposure of contrast media. RESULTS: The incidence of CIN was significantly lower in the alprostadil group than that in the control group (6.25% vs 11.67%, P = 0.038). Multivariate logistic regression analysis showed that alprostadil was the protective factor of CIN (OR = 0.699, 95% CI 0.542-0.902, P = 0.006). The benefits against CIN were consistent in prespecified high-risk patients with diabetes mellitus (P = 0.003). In addition, we also found that hs-CRP and blood homocysteine values after PCI were significantly lower in the alprostadil group than those in the control group. CONCLUSION: Prophylactic administration of alprostadil may prevent against CIN in coronary heart disease patients undergoing elective PCI, particularly in high-risk patients with diabetes mellitus. PMID- 29024302 TI - Reduced electroencephalogram responses to standard and target auditory stimuli in bipolar disorder and the impact of psychotic features: Analysis of event-related potentials, spectral power, and inter-trial coherence. AB - BACKGROUND: Bipolar disorder (BD) is associated with reductions in the P3b event related potential (ERP) response to target auditory stimuli, which suggests deficits in context updating. Previous studies have typically examined these responses in the temporal domain, which may not capture alterations in specific frequencies of phase-locked or induced electrophysiological activity. Therefore, the present study examined early and late ERPs in temporal and frequency domains in a bipolar sample with and without current psychotic features. METHODS: The electroencephalogram (EEG) was recorded during an auditory oddball task. Seventy five BD patients and 98 healthy controls (HCs) discriminated between standard and target tones. N1 ERPs to standards and P3b ERPs to targets were analyzed in the temporal domain. Event-related spectral perturbation (ERSP) and inter-trial coherence (ITC) were analyzed in the frequency domain. RESULTS: The early N1 response to standard tones was not significantly different between the total HC and BD samples irrespective of psychotic features. However, N1 amplitude was reduced in BD patients with psychotic features (BDP) compared to HCs and BD patients without psychotic features. P3b was reduced in BD patients versus HCs, with the BDP sample having the most reduced amplitude. In the time-frequency analysis, delta and theta ERSP and ITC were reduced across the time window for both standard and target stimuli in BD patients compared to HCs, but did not differ in the psychotic features analysis. CONCLUSIONS: The results provide neural evidence that BD is associated with disrupted sensory, attentional, and cognitive processing of auditory stimuli, which may be worsened with the presence of psychotic features. PMID- 29024305 TI - Catalytic Enantioselective Synthesis of Mariline A and Related Isoindolinones through a Biomimetic Approach. AB - The catalytic enantioselective synthesis of isoindolinones was achieved through the condensation of 2-acyl-benzaldehydes and anilines. In the presence of 1 mol % of a chiral phosphoric acid catalyst, reactions reach completion within 10 min and provide products with up to 98 % ee. Anilines with an ortho t-butyl group form atropisomeric products, thereby enabling the simultaneous generation of axial and point chirality from two achiral substrates. This method was applied to the first synthesis of mariline A. PMID- 29024300 TI - Accounting for the role of hematocrit in between-subject variations of MRI derived baseline cerebral hemodynamic parameters and functional BOLD responses. AB - Baseline hematocrit fraction (Hct) is a determinant for baseline cerebral blood flow (CBF) and between-subject variation of Hct thus causes variation in task based BOLD fMRI signal changes. We first verified in healthy volunteers (n = 12) that Hct values can be derived reliably from venous blood T1 values by comparison with the conventional lab test. Together with CBF measured using phase-contrast MRI, this noninvasive estimation of Hct, instead of using a population-averaged Hct value, enabled more individual determination of oxygen delivery (DO2 ), oxygen extraction fraction (OEF), and cerebral metabolic rate of oxygen (CMRO2 ). The inverse correlation of CBF and Hct explained about 80% of between-subject variation of CBF in this relatively uniform cohort of subjects, as expected based on the regulation of DO2 to maintain constant CMRO2 . Furthermore, we compared the relationships of visual task-evoked BOLD response with Hct and CBF. We showed that Hct and CBF contributed 22%-33% of variance in BOLD signal and removing the positive correlation with Hct and negative correlation with CBF allowed normalization of BOLD signal with 16%-22% lower variability. The results of this study suggest that adjustment for Hct effects is useful for studies of MRI perfusion and BOLD fMRI. Hum Brain Mapp 39:344-353, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024306 TI - Overview of glyphosate-resistant weeds worldwide. AB - Glyphosate is the most widely used and successful herbicide discovered to date, but its utility is now threatened by the occurrence of several glyphosate resistant weed species. Glyphosate resistance first appeared in Lolium rigidum in an apple orchard in Australia in 1996, ironically the year that the first glyphosate-resistant crop (soybean) was introduced in the USA. Thirty-eight weed species have now evolved resistance to glyphosate, distributed across 37 countries and in 34 different crops and six non-crop situations. Although glyphosate-resistant weeds have been identified in orchards, vineyards, plantations, cereals, fallow and non-crop situations, it is the glyphosate resistant weeds in glyphosate-resistant crop systems that dominate the area infested and growing economic impact. Glyphosate-resistant weeds present the greatest threat to sustained weed control in major agronomic crops because this herbicide is used to control weeds with resistance to herbicides with other sites of action, and no new herbicide sites of action have been introduced for over 30 years. Industry has responded by developing herbicide resistance traits in major crops that allow existing herbicides to be used in a new way. However, over reliance on these traits will result in multiple-resistance in weeds. Weed control in major crops is at a precarious point, where we must maintain the utility of the herbicides we have until we can transition to new weed management technologies. (c) 2017 Society of Chemical Industry. PMID- 29024307 TI - A Lewis Base Catalysis Approach for the Photoredox Activation of Boronic Acids and Esters. AB - We report herein the use of a dual catalytic system comprising a Lewis base catalyst such as quinuclidin-3-ol or 4-dimethylaminopyridine and a photoredox catalyst to generate carbon radicals from either boronic acids or esters. This system enabled a wide range of alkyl boronic esters and aryl or alkyl boronic acids to react with electron-deficient olefins via radical addition to efficiently form C-C coupled products in a redox-neutral fashion. The Lewis base catalyst was shown to form a redox-active complex with either the boronic esters or the trimeric form of the boronic acids (boroxines) in solution. PMID- 29024308 TI - Does remote monitoring change OSA management and CPAP adherence? AB - It is increasingly recognized that the high prevalence of obstructive sleep apnoea (OSA), and its associated cardio-metabolic morbidities make OSA a burden for society. Continuous positive airway pressure (CPAP), the gold standard treatment, needs to be used for more than 4 h/night to be effective, but suffers from relatively poor adherence. Furthermore, CPAP is likely to be more effective if combined with lifestyle changes. Thus, the remote telemonitoring (TM) of OSA patients in terms of CPAP use, signalling of device problems, following disease progression, detection of acute events and monitoring of daily physical activity is an attractive option. In the present review, we aim to summarize the recent scientific data on remote TM of OSA patients, and whether it meets expectations. We also look at how patient education and follow-up via telemedicine is used to improve adherence and we discuss the influence of the profile of the healthcare provider. Then, we consider how TM might be extended to encompass the patient's cardio-metabolic health in general. Lastly, we explore how TM and the deluge of data it potentially generates could be combined with electronic health records in providing personalized care and multi-disease management to OSA patients. PMID- 29024309 TI - Bio-prospecting endemic Mascarene Aloes for potential neuroprotectants. AB - The Mascarene Aloes are used in the traditional pharmacopoeia against various ailments including cutaneous diseases and as antispasmodics. Scientific evidence to support these claims is non-existent and mainly based on the scientific repute of A. vera. The antioxidant profile of methanolic leaf extracts of A. purpurea Lam., A. tormentorii (Marais) L. E. Newton & G. D. Rowley, A. lomatophylloides Balf. f., A. macra Haw. and A. vera (L.) Burm. f. was studied using the total antioxidant capacity, copper equivalent and superoxide dismutase assays. In vitro cytotoxicity was evaluated on CAD (Cath.-a-differentiated) neuronal cells by the methyl tetrazolium assay, and the neuroprotective profile was assessed using hydrogen peroxide-induced neurotoxicity with the CAD cells. The aloin and vitexin content were determined by high-performance liquid chromatography with diode array detection. A. purpurea had the highest aloin content (546.6 nmol/g), while A. tormentorii had the highest vitexin content (67.3 nmol/g). A. macra (concentration <0.1 mg/mL) elicited a 10% cytotoxicity effect on CAD cells while other Mascarene Aloes were not cytotoxic. This study validates the antioxidant and neuroprotective potential of Mascarene Aloes focusing on their aloin and vitexin content that are also present in other reputed medicinal Aloes. PMID- 29024311 TI - Collagen-inducing biologization of prosthetic material for hernia repair: Polypropylene meshes coated with polyP/collagen. AB - Prostethic mesh material such as nonabsorbable polypropylene used in open and laparoscopic hernia repair are characterized by controllable mechanical properties but may elicit undesirable physiological reactions due to the nonphysiological inert polymer material. We succeeded in developing a biocompatible coating for these meshes, based on a physiological inorganic polymer, polyphosphate (polyP) that is morphogenetically active and used as a metabolic energy source, and a collagen matrix. The polyP/collagen hydrogel material was prepared by a freeze-extraction method, with amorphous Ca-polyP microparticles. Electron microscopy (SEM and REM) studies revealed that the polyP/collagen coats are built up of ~50 nm-sized microparticles deposited onto the collagen matrix which forms a continuous layer around the polypropylene fibers that also spans the mesh pores. This bioresorbable inorganic/organic hybrid coat was found to be degraded during three days of incubation in medium/serum. The biomechanical properties of the coated meshes are comparable to those of the unmodified polypropylene meshes, with a higher toughness in longitudinal orientation and a more pronounced extensibility in the transverse orientation. The polyP/collagen coating improved cell attachment to the polypropylene meshes and strongly increase the growth of fibroblasts (MC3T3-E1 cells). Furthermore, those mats upregulate the expression of the gene encoding the stromal cell-derived factor-1alpha (SDF-1), a mesenchymal stem cells attracting chemokine in the fibroblasts. We conclude that coating of inert polymer meshes with a biocompatible, collagen-inducing polyP/collagen inorganic/organic hybrid layer may improve tissue integration of the meshes and the outcome of surgical hernia repair and may redudce the foreign body reaction in contaminated field. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2109-2121, 2018. PMID- 29024310 TI - Influence of metabolic syndrome and race on the relationship between intensive blood pressure control and cardiovascular outcomes in the SPRINT cohort. AB - AIMS: To determine whether baseline metabolic syndrome (MetS) modifies the effect of intensive blood pressure control on cardiovascular (CV) outcomes, and whether the effects varied by race/ethnicity. METHODS: We performed post hoc analyses among non-Hispanic black, non-hispanic white and Hispanic participants, with and without MetS, in the Systolic Blood Pressure Intervention Trial (SPRINT), who were randomized to a systolic blood pressure (SBP) target of <120 mm Hg (intensive group, N = 4544) or an SBP target of <140 mm Hg (standard group, N = 4553). The median follow-up was 3.26 years. The primary outcome was the composite of the first occurrence of myocardial infarction, stroke, heart failure, non myocardial infarction acute coronary syndrome or CV death. RESULTS: Overall, 3521/9097 participants (38.7%) met the criteria for MetS at baseline. Baseline characteristics were similar in the two SBP target groups within each MetS subgroup, except body mass index was slightly higher in the standard arm of the MetS subgroup (33.3 +/- 5.6 vs 33.0 +/- 5.3 kg/m2 ; P < .01), but were similar across treatment arms in the non-MetS subgroup. The hazard ratio for the primary outcome was similarly reduced in participants with or without baseline MetS: 0.75 (95% confidence interval [CI] 0.57, 0.96) and 0.71 (95% CI 0.57, 0.87), respectively (adjusted P value for treatment by subgroup interaction = .98). Similarly, there was no evidence of treatment * MetS subgroup interaction for all cause mortality (adjusted interaction P value = .98). The findings were also similar across race/ethnic subgroups. CONCLUSIONS: In this analysis the CV benefit of intensive SBP control did not differ among participants by baseline MetS status, regardless of race/ethnicity. PMID- 29024312 TI - Feeding forage mixtures of alfalfa hay and maize stover optimizes growth performance and carcass characteristics of lambs. AB - A feeding experiment was carried out to determine the effects of different proportions of alfalfa hay and maize stover on the growth performance and carcass characteristics of fattening lambs. Forty-two healthy 3.5-month-old male Small tail Han lambs of 23.89 +/- 0.38 kg body mass were assigned to seven groups, which were fed mixed diets composed of maize stover and alfalfa hay containing 0%, 30%, 40%, 50%, 60%, 70% or 100% maize stover on a dry matter (DM) basis. Each lamb received 1.5 kg DM of forage mixture three times daily and supplementary concentrate (0.5 kg corn per lamb per day) for 60 days. Compared with the control forage diet of maize stover only, forage intake rate and forage conversion rate on the 40% maize stover/60% alfalfa hay mixture were 30% and 5% higher, respectively. Body weight, dressing percentage and net income were 6.7 kg, 8% and 94.37 Yuan higher per lamb, respectively. Thus, feeding lambs with a forage mixture of maize stover and alfalfa hay in a ratio of 40:60 optimized the production performance, slaughter performance, and the income derived from lambs. PMID- 29024313 TI - Mesonephric remnant with seminal vesicle-like appearance in the cervix. PMID- 29024314 TI - Clinicomanometric factors associated with clinically relevant esophagogastric junction outflow obstruction from the Sandhill high-resolution manometry system. AB - BACKGROUND: Integrated relaxation pressure (IRP) is a key metric for diagnosing esophagogastric junction outflow obstruction (EGJOO). However, its normal value might be different according to the manufacturer of high-resolution manometry (HRM). This study aimed to investigate optimal value of IRP for diagnosing EGJOO in Sandhill HRM and to find clinicomanometric variables to segregate clinically relevant EGJOO. METHODS: We analyzed 262 consecutive subjects who underwent HRM between June 2011 and December 2016 showing elevated median IRP (> 15 mm Hg) but did not satisfy criteria for achalasia. Clinically relevant subjects were defined as follows: (i) subsequent HRM met achalasia criteria during follow-up (early achalasia); (ii) Eckardt score was decreased at least two points without exceeding a score of 3 after pneumatic dilatation (variant achalasia); and (iii) significant passage disturbance on esophagogram without structural abnormality (possible achalasia). KEY RESULTS: Seven subjects were clinically relevant, including two subjects with early achalasia, four subjects with variant achalasia, and one subject with possible achalasia. All clinically relevant subjects had IRP 20 mm Hg or above. Among subjects (n = 122) with IRP 20 mm Hg or more, clinically relevant group (n = 7) had significantly higher rate of dysphagia (100% vs 24.3%, P < .001) and compartmentalized pressurization (85.7% vs 21.7%, P = .001) compared to clinically non-relevant group (n = 115). CONCLUSIONS & INFERENCES: Our results suggest that IRP of 20 mm Hg or higher could segregate clinically relevant subjects showing EGJOO in Sandhill HRM. Additionally, if subjects have both dysphagia and compartmentalized pressurization, careful follow-up is essential. PMID- 29024315 TI - Copper-Catalyzed Synthesis of gamma-Amino Acids Featuring Quaternary Stereocenters. AB - The first general asymmetric synthesis of gamma,gamma-disubstituted gamma-amino acids by copper-catalyzed ring opening of nonstrained lactones with amines is reported. This approach features ample scope, operational simplicity, and wide functional-group diversity. The catalytic process allows access to a series of highly functionalized enantioenriched gamma-amino acids featuring quaternary stereocenters with excellent enantiomeric ratios of up to 98:2 and excellent yields of up to 98 %. PMID- 29024316 TI - Singlet Oxygen during Cycling of the Aprotic Sodium-O2 Battery. AB - Aprotic sodium-O2 batteries require the reversible formation/dissolution of sodium superoxide (NaO2 ) on cycling. Poor cycle life has been associated with parasitic chemistry caused by the reactivity of electrolyte and electrode with NaO2 , a strong nucleophile and base. Its reactivity can, however, not consistently explain the side reactions and irreversibility. Herein we show that singlet oxygen (1 O2 ) forms at all stages of cycling and that it is a main driver for parasitic chemistry. It was detected in- and ex-situ via a 1 O2 trap that selectively and rapidly forms a stable adduct with 1 O2 . The 1 O2 formation mechanism involves proton-mediated superoxide disproportionation on discharge, rest, and charge below ca. 3.3 V, and direct electrochemical 1 O2 evolution above ca. 3.3 V. Trace water, which is needed for high capacities also drives parasitic chemistry. Controlling the highly reactive singlet oxygen is thus crucial for achieving highly reversible cell operation. PMID- 29024317 TI - Camera traps and activity signs to estimate wild boar density and derive abundance indices. AB - BACKGROUND: Populations of wild boar and feral pigs are increasing worldwide, in parallel with their significant environmental and economic impact. Reliable methods of monitoring trends and estimating abundance are needed to measure the effects of interventions on population size. The main aims of this study, carried out in five English woodlands were: (i) to compare wild boar abundance indices obtained from camera trap surveys and from activity signs; and (ii) to assess the precision of density estimates in relation to different densities of camera traps. For each woodland, we calculated a passive activity index (PAI) based on camera trap surveys, rooting activity and wild boar trails on transects, and estimated absolute densities based on camera trap surveys. RESULTS: PAIs obtained using different methods showed similar patterns. We found significant between year differences in abundance of wild boar using PAIs based on camera trap surveys and on trails on transects, but not on signs of rooting on transects. The density of wild boar from camera trap surveys varied between 0.7 and 7 animals/km2 . Increasing the density of camera traps above nine per km2 did not increase the precision of the estimate of wild boar density. CONCLUSION: PAIs based on number of wild boar trails and on camera trap data appear to be more sensitive to changes in population size than PAIs based on signs of rooting. For wild boar densities similar to those recorded in this study, nine camera traps per km2 are sufficient to estimate the mean density of wild boar. (c) 2017 Crown copyright. Pest Management Science (c) 2017 Society of Chemical Industry. PMID- 29024318 TI - Antiphospholipid antibody-induced cellular responses depend on epitope specificity : implications for treatment of antiphospholipid syndrome. AB - : Essentials Antiphospholipid antibodies (aPL) are heterogeneous and induce different cellular responses. We analyzed signaling events induced by different monoclonal and patient aPL in monocytes. Two major signaling pathways involving either NADPH-oxidase or LRP8 were identified. Our data suggest that these two pathways mediate the majority of aPL effects on monocytes. SUMMARY: Background Antiphospholipid antibodies (aPLs) contribute to the pathogenesis of the antiphospholipid syndrome (APS) by induction of an inflammatory and procoagulant state in different cell types, and several signaling pathways have been described. Objectives To investigate whether signaling depends on the epitope specificity of aPLs. Methods Cellular effects of three human monoclonal aPLs with distinctly different epitope specificities were analyzed in vitro. Expression of tumor necrosis factor-alpha mRNA by mouse and human monocytes was the major readout. Analysis included cells from genetically modified mice, and the use of specific inhibitors in human monocytes. Data were validated with IgG isolated from 20 APS patients. Results Cofactor-independent anticardiolipin aPLs activated monocytes by induction of endosomal NADPH oxidase. Activation could be blocked by hydroxychloroquine (HCQ). Anti-beta2 -glycoprotein I aPL activated monocytes by interacting with LDL receptor-related protein 8 (LRP8). This could be blocked by rapamycin. Analysis of 20 APS patients' IgG showed that all IgG fractions activated the same two pathways as the monoclonal aPL, depending on their epitope patterns as determined by ELISA. Monocyte activation by APS IgG could be blocked completely by HCQ and/or rapamycin, suggesting that in most, if not all, APS patients there is no other relevant signaling pathway. Conclusions aPLs activate two major proinflammatory signal transduction pathways, depending on their epitope specificity. HCQ and rapamycin, either alone or in combination, completely suppress signaling by APS IgG. These observations may provide a rationale for specific treatment of APS patients according to their aPL profile. PMID- 29024319 TI - Prognostic significance of Glasgow prognostic score in patients with acute exacerbation of idiopathic pulmonary fibrosis. AB - BACKGROUND AND OBJECTIVE: The Glasgow prognostic score (GPS) reflects the host systemic inflammatory response and is a validated independent prognostic factor in lung cancer. We investigated GPS as a potential predictive factor of clinical outcomes in idiopathic pulmonary fibrosis (IPF) patients with acute exacerbation (AE). METHODS: This was a retrospective study performed between January 2006 and March 2016 in Bucheon St. Mary's Hospital, The Catholic University of Korea. Overall, 327 admitted IPF patients were registered in the study. Patients with definite pneumonia at the time of admission, those with left-sided heart failure, pulmonary embolism and an identifiable cause of acute lung injury, and those whose albumin or C-reactive protein levels were not measured were excluded. RESULTS: A total of 66 patients hospitalized with IPF-AE were finally included. Median survival was 20.7 days and 29 (43.9%) patients died during hospitalization. The median length of overall survival (OS) was 26.0, 20.0 and 15.0 days for GPS-0, GPS-1 and GPS-2, respectively. There were significant differences in OS between GPS-0 and GPS-2 (P = 0.002). In a multivariate analysis performed using a Cox regression model, eosinopenia (P = 0.007), lower partial pressure of oxygen/fraction of inspired oxygen ratio (P = 0.014), and higher GPS (P = 0.006) were independent predictors of mortality. CONCLUSION: GPS can be helpful in predicting mortality in IPF patients with AE. PMID- 29024320 TI - Band-Gap Engineering of Graphene Heterostructures by Substitutional Doping with B3 N3. AB - We investigated the energetics and electronic structure of B3 N3 -doped graphene employing density functional theory calculations with the generalized gradient approximation. Our calculations reveal that all of the B3 N3 -doped graphene structures are semiconducting, irrespective of the periodicity of the B3 N3 embedded into the graphene network. This is in contrast to graphene nanomeshes, which are either semiconductors or metals depending on the mesh arrangement. In B3 N3 -doped graphene, the effective masses for both electrons and holes are small. The band gap in the B3 N3 -doped graphene networks and the total energy of the B3 N3 -doped graphene are inversely proportional to the B3 N3 spacing. Furthermore, both properties depend on whether or not the graphene region possesses a Clar structure. In particular, the sheets with a Clar structure exhibit a wider band gap and a slightly lower total energy than those without a Clar structure. PMID- 29024324 TI - Clinical implications of gastrointestinal symptoms in systemic amyloidosis. AB - BACKGROUND: Gastrointestinal (GI) symptoms in systemic amyloidosis patients are poorly characterized. This purpose of this study is to define the epidemiology and clinical implications of such symptoms. METHODS: This was a retrospective cohort study of 583 amyloid patients seen at a tertiary referral center. Of 96 symptomatic patients, 82 received endoscopic biopsies, subsequently grouped into those with histologic evidence of GI amyloid (biopsy proven) vs without (biopsy absent). KEY RESULTS: 16.8% of patients had GI symptoms, and had more abnormal NT proBNP, cardiac ejection fraction, serum albumin, and alkaline phosphatase (P < .01). Of those who received endoscopy, the sites of highest diagnostic yield were stomach, duodenum and colon. The most common symptom was abdominal pain, nausea, or vomiting (50.0%). Of the symptomatic patients, only 37 (45%) had biopsy proven GI amyloid. Biopsy proven patients more often had cardiac involvement (P < .005), and more often received hematologic therapy or transplant (P = .01). Biopsy absent patients had more frequent neurologic involvement (P = .17). Biopsy status had no significant correlation with other indicators of amyloid burden, GI symptoms or management. CONCLUSIONS & INFERENCES: Nearly one in six amyloid patients have GI symptoms, and half do not have GI amyloid. The type of symptom does not predict endoscopic findings. Most biopsy absent patients are not managed as a functional disorder despite no alternative etiology. Gastroenterologists may have an increased role to play in the care of systemic amyloidosis beyond performing endoscopies, such as evaluating cardiac amyloid patients for concurrent GI amyloid. PMID- 29024323 TI - Excretion of Avenanthramides, Phenolic Acids and their Major Metabolites Following Intake of Oat Bran. AB - SCOPE: Wholegrain has been associated with reduced chronic disease mortality, with oat intake particularly notable for lowering blood cholesterol and glycemia. To better understand the complex nutrient profile of oats, we studied urinary excretion of phenolic acids and avenanthramides after ingestion of oat bran in humans. METHODS AND RESULTS: After a 2-d (poly)phenol-low diet, seven healthy men provided urine 12 h before and 48 h after consuming 60 g oat bran (7.8 MUmol avenanthramides, 139.2 MUmol phenolic acids) or a phenolic-low (traces of phenolics) control in a crossover design. Analysis by ultra-high performance liquid chromatography (UPLC)-MS/MS showed that oat bran intake resulted in an elevation in urinary excretion of 30 phenolics relative to the control, suggesting that they are oat bran-derived. Mean excretion levels were elevated between 0-2 and 4-8 h, following oat bran intake, and amounted to a total of 33.7 +/- 7.3 MUmol total excretion (mean recovery: 22.9 +/- 5.0%), relative to control. The predominant metabolites included: vanillic acid, 4- and 3 hydroxyhippuric acids, and sulfate-conjugates of benzoic and ferulic acids, which accounted collectively for two thirds of total excretion. CONCLUSION: Oat bran phenolics follow a relatively rapid urinary excretion, with 30 metabolites excreted within 8 h of intake. These levels of excretion suggest that bound phenolics are, in part, rapidly released by the microbiota. PMID- 29024321 TI - Post-Graphene 2D Chemistry: The Emerging Field of Molybdenum Disulfide and Black Phosphorus Functionalization. AB - The current state of the chemical functionalization of three types of single sheet 2D materials, namely, graphene, molybdenum disulfide (MoS2 ), and black phosphorus (BP) is summarized. Such 2D sheet polymers are currently an emerging field at the interface of synthetic chemistry, physics, and materials science. Both covalent and non-covalent functionalization of sheet architectures allows a systematic modification of their properties, that is, an improvement of solubility and processability, the prevention of re-aggregation, or band-gap tuning. Next to successful functionalization concepts, fundamental challenges are also addressed. These include the insolubility and polydispersity of most 2D sheet polymers, the development of suitable characterization tools, the identification of effective binding strategies, the chemical activation of the usually rather unreactive basal planes for covalent addend binding, and the regioselectivity of plane addition reactions. Although a number of these questions remain elusive in this Review, the first promising concepts to overcome such hurdles are presented. PMID- 29024325 TI - Dose-Response Effects of p-Synephrine on Fat Oxidation Rate During Exercise of Increasing Intensity. AB - The aim of this investigation was to determine the effects different doses of p synephrine on maximal fat oxidation during exercise. Seventeen healthy subjects volunteered to participate in a double-blind and randomised experimental design composed of four identical experimental trials. On four trials separated by 72 h, participants ingested a placebo or 1, 2 or 3 mg/kg of p-synephrine. After resting for 60 min to allow substance absorption, participants performed an exercise test of increasing intensity on a cycle ergometer while gas exchange was measured continuously. None of the doses of p-synephrine affected energy expenditure or heart rates during the test. The highest rate of fat oxidation with the placebo (0.35 +/- 0.05 g/min) was reached at 38.0 +/- 1.9% of VO2max . The ingestion of 1 mg/kg increased maximal fat oxidation to 0.47 +/- 0.11 g/min (p = 0.01) but did not change the intensity at which it was obtained (42.0 +/- 9.4% of VO2max ). The ingestion of 2 and 3 mg/kg of p-synephrine increased maximal fat oxidation to 0.55 +/- 0.14 g/min (p < 0.01), although only 3 mg/kg slightly changed the intensity at which it was obtained (43.0 +/- 9.5% of VO2max , p < 0.01). In conclusion, although all p-synephrine increased the maximal rate of fat oxidation during exercise, the highest effects were found with 2 and 3 mg/kg. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29024322 TI - Not in your usual Top 10: protists that infect plants and algae. AB - Fungi, nematodes and oomycetes belong to the most prominent eukaryotic plant pathogenic organisms. Unicellular organisms from other eukaryotic lineages, commonly addressed as protists, also infect plants. This review provides an introduction to plant pathogenic protists, including algae infecting oomycetes, and their current state of research. PMID- 29024326 TI - CODH-IV: A High-Efficiency CO-Scavenging CO Dehydrogenase with Resistance to O2. AB - CO dehydrogenases (CODHs) catalyse the reversible conversion between CO and CO2 . Genomic analysis indicated that the metabolic functions of CODHs vary. The genome of Carboxydothermus hydrogenoformans encodes five CODHs (CODH-I-V), of which CODH IV is found in a gene cluster near a peroxide-reducing enzyme. Our kinetic and crystallographic experiments reveal that CODH-IV differs from other CODHs in several characteristic properties: it has a very high affinity for CO, oxidizes CO at diffusion-limited rate over a wide range of temperatures, and is more tolerant to oxygen than CODH-II. Thus, our observations support the idea that CODH-IV is a CO scavenger in defence against oxidative stress and highlight that CODHs are more diverse in terms of reactivity than expected. PMID- 29024327 TI - Effect of a See and Treat clinic on skin cancer treatment time. AB - BACKGROUND: Many plastic surgery departments in Australasia have experienced increasing referrals for management of skin lesions. This has driven a demand for new strategies to decrease patient waiting time and administrative costs. The aim of this study was to determine if a purpose-built See and Treat skin cancer clinic could provide a faster skin cancer treatment pathway with comparable clinical outcomes and acceptability to patients. METHODS: This was a prospective observational study of patients treated through the See and Treat clinic with a retrospective control cohort. The prospective 'See and Treat' cohort included a consecutive series of 106 patients, while the retrospective cohort included a consecutive series of 200 patients. Patient demographics, time from referral to surgery and operative measures were analysed. One hundred patients in the prospective cohort completed an anonymous satisfaction survey regarding their treatment. RESULTS: The average time from referral to surgery was reduced from 121 days in the retrospective cohort to 60 days in the See and Treat cohort (P < 0.001). Rates of complete excision of malignant and premalignant lesions were not different between the two groups, being 93% (178/191) and 91% (76/84), respectively (P = 0.609). Ninety-five percent (95/100) of patients were satisfied with their See and Treat experience overall. CONCLUSION: We show that a considerable reduction in the time between referral and surgery can be achieved through a See and Treat clinic without compromise of the success of surgical treatment. Moreover, such a treatment pathway has been shown to be acceptable, and largely preferable, to patients. PMID- 29024328 TI - The development of morphological representations in young readers: a cross-modal priming study. AB - The way children organize words in their memory has intrigued many researchers in the past 20 years. Given the large number of morphologically complex words in many languages, the influence of morphemes on this organization is being increasingly examined. The aim of this study was to understand how morphemic information influences English-speaking children's word recognition. Children in grades 3 and 5 were asked to complete a lexical decision priming task. Prime target pairs varied in semantic similarity, with low (e.g., belly-bell), moderate (e.g., lately-late), and high similarity relations (e.g., boldly-bold). There were also word pairs similar in form only (e.g., spinach-spin) and in semantics only (e.g., garbage-trash). Primes were auditory and targets were presented visually. Analyses of children's lexical decision times revealed graded priming effects as a function of the convergence of form and meaning. These results indicate that developing readers do not necessarily need to lexicalize morphological units to facilitate word recognition. Their ability to process the morphological structure of words depends on their ability to develop connections between form and meaning. PMID- 29024329 TI - Direct Readout of Single Nucleobase Variations in an Oligonucleotide. AB - Direct, low-cost, label-free, and enzyme-free identification of single nucleobase is a great challenge for genomic studies. Here, this study reports that wild-type aerolysin can directly identify the difference of four types of single nucleobase (adenine, thymine, cytosine, and guanine) in a free DNA oligomer while avoiding the operations of additional DNA immobilization, adapter incorporation, and the use of the processing enzyme. The nanoconfined space of aerolysin enables DNA molecules to be limited in the narrow pore. Moreover, aerolysin exhibits an unexpected capability of detecting DNA oligomers at the femtomolar concentration. In the future, by virtue of the high sensitivity of aerolysin and its high capture ability for DNA oligomers, aerolysin will play an important role in the studies of single nucleobase variations and open up new avenues for a broad range of nucleic-acid-based sensing and disease diagnosis. PMID- 29024330 TI - C-H Functionalisation for Hydrogen Isotope Exchange. AB - The various applications of hydrogen isotopes (deuterium, D, and tritium, T) in the physical and life sciences demand a range of methods for their installation in an array of molecular architectures. In this Review, we describe recent advances in synthetic C-H functionalisation for hydrogen isotope exchange. PMID- 29024331 TI - Detection of latent infections caused by Colletotrichum sp. in olive fruit. AB - AIMS: To set up a practical method to detect latent infections of Colletotrichum sp., the causal agent of olive anthracnose, on olives before the onset of disease symptoms. METHODS AND RESULTS: Freezing, sodium hydroxide (NaOH), ethanol and ethylene treatments were evaluated to detect latent infections on inoculated and naturally infected olive fruit by Colletotrichum sp. as non-hazardous alternatives to paraquat. Treatments were conducted using fruit of cultivars Arbequina and Hojiblanca. The disease incidence and T50 were calculated. Dipping in NaOH 0.05% solution and the paraquat method were the most effective treatments on both inoculated and naturally infected fruit, although the value of T50 was lower for the NaOH method than for the paraquat method in one of the experiments. Subsequently, the dipping time in NaOH 0.05% was evaluated. Longer dipping times in NaOH 0.05% were better than shorter ones in cultivar Arbequina, with 72 h being the most effective in cultivar Hojiblanca. CONCLUSIONS: NaOH solution is a practical method to detect latent infections of Colletotrichum sp. on immature olive fruit. SIGNIFICANCE AND IMPACT OF THE STUDY: This study is relevant because we set up a viable, non-hazardous alternative to paraquat to detect latent infections of Colletotrichum sp. using NaOH. The use of NaOH is a simple and eco friendly tool that allows the determination of the level of latent infections by Colletotrichum in olives. Therefore, our method will be useful in decision-making processes for disease management before the appearance of the first visible symptoms. PMID- 29024332 TI - Effect of resistance training set volume on upper body muscle hypertrophy: are more sets really better than less? AB - BACKGROUND: Resistance training (RT) for upper body muscle hypertrophy (UBMH) typically entails high volumes of sets per muscle group per training session. The majority of RT regimens does not discriminate between upper and lower body muscle groups, while these groups may respond differently to RT set volumes in terms of maximum skeletal muscle mass gain. Recent studies have examined the effect of different set volumes on the extent of UBMH to formulate optimal RT regimens and to make RT programmes more time-efficient. OBJECTIVE: To analyse the effect of the number of RT sets on the extent of UBMH on the basis of recent literature. RESULTS AND CONCLUSION: The analysis suggests that, statistically, high set volumes (>=3) are not significantly better than low set volumes (<3) in regard to UBMH in untrained subjects. For trained subjects, the literature is lacking in well-designed studies comparing low and high training volumes, as well as analysing upper and lower body muscles separately. Therefore, it is not possible to conclude that high volume of sets offers better results than low volume of sets for UBMH, and vice versa. PMID- 29024333 TI - United we stand, divided we conquer: pilot study of multidisciplinary General Medicine Heart Failure Care Program. AB - BACKGROUND: Heart failure care and education require a multifaceted approach to ensure appropriate transition from inpatient to outpatient care. AIMS: To explore the feasibility of a multidisciplinary heart failure care model, General Medicine Heart Failure Care Program (GM-HFCP), within a General Medical Unit (GMU). METHODS: Prospective non-randomised before-and-after observational quality improvement intervention over a 6-month period was conducted. All consecutive patients admitted to GMU at Alfred Hospital, Melbourne with a diagnosis of acute decompensated heart failure were included. Main outcome measures included changes in rates of pharmacologic prescription, non-pharmacologic ward-based management, patient education and action plan provision after intervention. RESULTS: In total, 108 patients were included (median age 84 (inter-quartile range 80-89) years, 47(44%) females). Significant improvements were noted in non-pharmacologic management for patient education regarding fluid restriction (12-30%, P = 0.04), weight monitoring (10-28%, P = 0.03), heart failure action plan on discharge (4 28%, P = 0.002) and salt restriction (6-32%, P = 0.002). The rates of prescription of heart failure medications remained similar between the pre- and post-implementation periods, particularly in patients with reduced ejection fraction by 'appropriateness of prescription' criteria. There were no differences in inpatient mortality or 30-day readmission rates in both groups. CONCLUSIONS: This prospective observational study demonstrated that it is possible to share the roles of a heart failure nurse amongst members of the multidisciplinary team, with similar rates of delivery of pharmacologic and non-pharmacologic management aspects. However, further innovative improvements are needed to address certain aspects of heart failure care. PMID- 29024334 TI - Intermediate and nonclassical monocytes show heterogeneity in patients with different types of acute coronary syndrome. AB - This study was performed to gain further insight in the heterogeneity of monocytes in the different categories of acute coronary syndrome (ACS), especially between patients with unstable angina pectoris, ST-elevation myocardial infarction (STEMI), and non-ST-elevation myocardial infarction (NSTEMI). For this purpose, blood samples were collected in the acute phase from patients presenting with an ACS. These samples were examined with multiparameter flow cytometry to identify the different monocyte subsets and to analyze the expression of monocyte-associated molecules. Leukocytes, as well as an absolute number of monocytes, showed a clear and significant increase in patients with STEMI. This increase was seen in all subtypes of monocytes. The classical monocytes (CD14++CD16-) of patients with an NSTEMI had a significantly increased CD11b expression when compared to the control group, while these cells showed a decreased expression pattern in STEMI patients. This increased CD11b-expression was also seen in the intermediate monocytes of NSTEMI, while it was almost completely downregulated on the intermediate monocytes of STEMI. Finally, CX3CR1, which is almost exclusively expressed on intermediate and nonclassical monocytes, showed a significant decrease in expression in patients with STEMI. In conclusion, intermediate and nonclassical monocytes have a different immunophenotypic pattern in patients with STEMI versus NSTEMI. These differences reflect the pro-inflammatory state of the monocytes in NSTEMI and can be used as target molecules for novel therapeutic strategies to diminish the migration of proinflammatory monocytes into the myocardial tissue. (c) 2017 International Society for Advancement of Cytometry. PMID- 29024335 TI - Fifty shades of SUMO: its role in immunity and at the fulcrum of the growth defence balance. AB - The sessile nature of plants requires them to cope with an ever-changing environment. Effective adaptive responses require sophisticated cellular mechanisms at the post-transcriptional and post-translational levels. Post translational modification by small ubiquitin-like modifier (SUMO) proteins is emerging as a key player in these adaptive responses. SUMO conjugation can rapidly change the overall fate of target proteins by altering their stability or interaction with partner proteins or DNA. SUMOylation entails an enzyme cascade that leads to the activation, conjugation and ligation of SUMO to lysine residues of target proteins. In addition to their SUMO processing activities, SUMO proteases also possess de-conjugative activity capable of cleaving SUMO from target proteins, providing reversibility and buffering to the pathway. These proteases play critical roles in the maintenance of the SUMO machinery in equilibrium. We hypothesize that SUMO proteases provide the all-important substrate specificity within the SUMO system. Furthermore, we provide an overview of the role of SUMO in plant innate immunity. SUMOylation also overlaps with multiple growth-promoting and defence-related hormone signalling pathways, and hence is pivotal for the maintenance of the growth-defence balance. This review aims to highlight the intricate molecular mechanisms utilized by SUMO to regulate plant defence and to stabilize the growth-defence equilibrium. PMID- 29024337 TI - 'Two-floret spikelet' as a novel resource has the potential to increase rice yield. PMID- 29024336 TI - Interplay of pathogenic forms of human tau with different autophagic pathways. AB - Loss of neuronal proteostasis, a common feature of the aging brain, is accelerated in neurodegenerative disorders, including different types of tauopathies. Aberrant turnover of tau, a microtubule-stabilizing protein, contributes to its accumulation and subsequent toxicity in tauopathy patients' brains. A direct toxic effect of pathogenic forms of tau on the proteolytic systems that normally contribute to their turnover has been proposed. In this study, we analyzed the contribution of three different types of autophagy, macroautophagy, chaperone-mediated autophagy, and endosomal microautophagy to the degradation of tau protein variants and tau mutations associated with this age related disease. We have found that the pathogenic P301L mutation inhibits degradation of tau by any of the three autophagic pathways, whereas the risk associated tau mutation A152T reroutes tau for degradation through a different autophagy pathway. We also found defective autophagic degradation of tau when using mutations that mimic common posttranslational modifications in tau or known to promote its aggregation. Interestingly, although most mutations markedly reduced degradation of tau through autophagy, the step of this process preferentially affected varies depending on the type of tau mutation. Overall, our studies unveil a complex interplay between the multiple modifications of tau and selective forms of autophagy that may determine its physiological degradation and its faulty clearance in the disease context. PMID- 29024338 TI - Regulating DNA Self-assembly by DNA-Surface Interactions. AB - DNA self-assembly provides a powerful approach for preparation of nanostructures. It is often studied in bulk solution and involves only DNA-DNA interactions. When confined to surfaces, DNA-surface interactions become an additional, important factor to DNA self-assembly. However, the way in which DNA-surface interactions influence DNA self-assembly is not well studied. In this study, we showed that weak DNA-DNA interactions could be stabilized by DNA-surface interactions to allow large DNA nanostructures to form. In addition, the assembly can be conducted isothermally at room temperature in as little as 5 seconds. PMID- 29024339 TI - Fracturing a dysfunctional Edwards Perimount bioprosthetic valve to facilitate percutaneous valve-in-valve placement of SAPIEN 3 valve with modified delivery system. AB - Pulmonary valve replacement via surgical implantation of a bioprosthetic valve (BPV) is a well-established treatment for patients with dysfunctional RV outflow tracts. BPVs are prone to structural deterioration, and will eventually require replacement. Recently, percutaneous valve-in-valve (VIV) placement of transcatheter valves has established itself as a safe and effective alternative to surgical revision. Unfortunately, VIV therapy is inherently limited by the inner diameter of the BPV, which restricts the number of eligible patients. Other centers have reported on the feasibility of cracking certain BPVs with ultra high pressure balloons in bench testing. We now report cracking an Edwards Perimount BPV in the pulmonary position to facilitate VIV placement of an Edwards SAPIEN 3. The ability to crack the Perimount valve allowed placement of a larger valve than previously considered and minimized the final valve gradient. In an effort to avoid the morbidity and mortality of surgical pulmonary valve replacement, this new strategy will expand the number of patients eligible for percutaneous VIV therapy. PMID- 29024341 TI - Modulation of Human Subcutaneous Adipose Tissue MicroRNA Profile Associated with Changes in Adiposity-Related Parameters. AB - SCOPE: To analyze the effect of three calorie-restricted diets with different amount and quality of carbohydrates on subcutaneous adipose tissue (SAT) microRNA (miRNA) profile. METHODS AND RESULTS: 6-month parallel, randomized trial conducted on overweight and obese subjects randomized to: 1) low glycemic index diet (LGI), 2) high glycemic index diet (HGI), and 3) low-fat (LF). The genome wide SAT miRNA profile was assessed in eight randomly selected participants and the most relevant changing miRNAs (n = 13) were validated in 48 subjects. None of the miRNAs showed significant changes between the intervention groups. However, changes in some of them correlated with changes in biochemical and anthropometric variables. Stratifying our population according to tertiles of percentage change in body weight (BW), we observed a significant down-regulation of miR-210 in those subjects in Tertile 1 as compared to Tertile 3. When our population was stratified by tertiles of waist circumference, miR-132, miR-29a, miR-34a, and miR 378 were found to be significantly down-regulated, in T2 compared to T3. Furthermore, when stratified by tertiles of fat mass, we also observed the significant down-regulation of miR-132 in T1. CONCLUSION: The macronutrient composition of a calorie-restricted diet does not affect the expression of the miRNAs analyzed, while changes in adiposity play a primary regulatory role. PMID- 29024342 TI - Upconversion Nanocarriers Encapsulated with Photoactivatable Ru Complexes for Near-Infrared Light-Regulated Enzyme Activity. AB - Enzyme activity is important for metabolism, cell functions, and treating diseases. However, remote control of enzyme activity in deep tissue remains a challenge. This study demonstrates near-infrared (NIR) light-regulated enzyme activity in living cells based on upconverting nanoparticles (UCNPs) and a photoactivatable Ru complex. The Ru complex is a caged enzyme inhibitor that can be activated by blue light. To prepare a nanocarrier for NIR photoinhibition of enzyme activity, a UCNP and the caged enzyme inhibitors are encapsulated in a hollow mesoporous silica nanoparticle. In such a nanocarrier, the UCNP can harvest NIR light and convert it into blue light, which can activate the caged enzyme inhibitors. This photoactivation process is feasible in deep tissue because of the tissue penetration ability of NIR light. The nanocarrier is compatible to LNCaP, PC3, and SAOS-2 cells, which show high enzyme expression. NIR irradiation induces release of the inhibitors and inhibition of enzyme activity in living cells. NIR light provides high spatiotemporal resolution to regulate enzyme activity in deep tissue. PMID- 29024340 TI - Multiple marker abundance profiling: combining selected reaction monitoring and data-dependent acquisition for rapid estimation of organelle abundance in subcellular samples. AB - Measuring changes in protein or organelle abundance in the cell is an essential, but challenging aspect of cell biology. Frequently-used methods for determining organelle abundance typically rely on detection of a very few marker proteins, so are unsatisfactory. In silico estimates of protein abundances from publicly available protein spectra can provide useful standard abundance values but contain only data from tissue proteomes, and are not coupled to organelle localization data. A new protein abundance score, the normalized protein abundance scale (NPAS), expands on the number of scored proteins and the scoring accuracy of lower-abundance proteins in Arabidopsis. NPAS was combined with subcellular protein localization data, facilitating quantitative estimations of organelle abundance during routine experimental procedures. A suite of targeted proteomics markers for subcellular compartment markers was developed, enabling independent verification of in silico estimates for relative organelle abundance. Estimation of relative organelle abundance was found to be reproducible and consistent over a range of tissues and growth conditions. In silico abundance estimations and localization data have been combined into an online tool, multiple marker abundance profiling, available in the SUBA4 toolbox (http://suba.live). PMID- 29024344 TI - Authors' reply re: The impact of a novel transendometrial approach for caesarean myomectomy on obstetric outcomes of subsequent pregnancy: a longitudinal panel study. PMID- 29024343 TI - Dimensionality and internal structure of the Colombian version of the INICO-FEAPS quality of life scale. AB - BACKGROUND AND OBJECTIVE: Measuring quality of life (QoL) in people with intellectual disabilities (IDs) can help organisations and practitioners to implement evidence-based practices and develop person-centred planning and individualised supports. There is no reliable and valid instrument for assessing QoL in people with ID in Colombia. We investigated the internal structure of the Colombian version of the INICO-FEAPS scale and tested whether the scale identified the eight interrelated domains of the QoL conceptual framework originally described by. METHOD: Data were collected from 602 adults with moderate levels of ID and respective proxies, who completed the self-report and the report by other scales, respectively. Five measurement models were tested through confirmatory factor analysis. RESULTS: The eight correlated dimension model showed the best fit to the data. Reliability and convergent validity of the indicators were satisfactory in both versions of the scale (self-report and proxy report). CONCLUSIONS: This study contributes to research on QoL measurement by providing the first empirical evidence regarding the dimensionality, internal structure and psychometric properties of the Colombian version of the INICO-FEAPS scale. Moreover, the study presents the first adaptation of a specific QoL scale for people with ID in Colombia, which may in the future be useful for implementing evidence-based practices and developing person-centred support plans. PMID- 29024345 TI - Effect of Water Addition during Preparation on the Early-Time Photodynamics of CH3 NH3 PbI3 Perovskite Layers. AB - The effect of water addition during preparation of a CH3 NH3 PbI3 layer on the photodynamics is studied by femtosecond transient absorption. Both the regular perovskite and the aqueous analogue show charge thermalisation on a timescale of about 500 fs. This process is, however, less pronounced in the latter layer. The spectral feature associated with hot charges does not fully decay on this timescale, but also shows a long-lived (sub-ns) component. As water molecules may interfere with the hydrogen bonding between the CH3 NH3+ cations and the inorganic cage, this effect is possibly caused by immobilisation of cation motion, suggesting a key role of CH3 NH3+ dipole reorientation in charge thermalisation. This effect shows the possibility of controlling hot charge carrier cooling to overcome the Shockley-Queisser limit. PMID- 29024346 TI - Dementia assessment services: What are the perceptions of older people? AB - OBJECTIVE: To determine how older people with dementia and their family caregivers experience dementia assessment services and preferences for future configuration of diagnostic services. METHODS: Qualitative, semistructured in depth interviews were conducted with nine individuals with dementia. In seven instances, the caregiver also took part in the interview, and on two occasions, the interview was with the person with dementia only. RESULTS: An important contact during assessment of dementia was the general practitioner, in particular working in a way or timeframe which provides clarity and comfort to the person with dementia and their family members. A problematic factor in clear diagnosis was when probable dementia was suspected during hospitalisation for another complaint. Participants expressed a wide range of views in terms of preferred settings for diagnostic services. CONCLUSION: These findings highlight some key considerations, which should be included in future research leading to decisions about the design of dementia client services. PMID- 29024347 TI - Longterm outcome of rendezvous technique for hepaticojejunal anastomotic obstruction after pediatric living donor liver transplantation. PMID- 29024348 TI - Obesity as a risk factor for Alzheimer's disease: weighing the evidence. AB - Alzheimer's disease (AD) is the sixth leading cause of death in the USA today; therefore, it is imperative that public health initiatives and clinical strategies are developed to prevent and effectively treat AD. Despite the enormous impact that AD has on individuals, families, society, and the health care system, there are no biomarkers to clearly identify those at risk for AD, public health prevention strategies in place, or treatments to address the underlying pathology or stop the progression of AD. There is ample scientific as well as empirical evidence that obesity and its metabolic and vascular comorbidities are related to AD and likely in the causative pathway. Obesity prevention and treatment could prove to be an efficacious and safe approach to preventing AD, a serious and daunting epidemic disease. In this review, we present the current pathophysiological and clinical evidence linking obesity and obesity-related comorbidities (eg, insulin resistance, hyperglycaemia, and type 2 diabetes) with AD. Additionally, we discuss which population to target and when to consider treatment for AD. Finally, we summarize the current evidence regarding the efficacy of anti-obesity and anti-diabetic pharmacotherapeutic agents for the treatment of AD. PMID- 29024349 TI - Visible-Light-Driven Iron-Promoted Thiocarboxylation of Styrenes and Acrylates with CO2. AB - The first thiocarboxylation of styrenes and acrylates with CO2 was realized by using visible light as a driving force and catalytic iron salts as promoters. A variety of important beta-thioacids were obtained in high yields. This multicomponent reaction proceeds in an atom- and redox-economical manner with broad substrate scope under mild reaction conditions. Notably, high regio-, chemo , and diasteroselectivity are observed. Mechanistic studies indicate that a radical pathway can account for the unusual regioselectivity. PMID- 29024350 TI - Epidemiology, pathophysiology and clinical outcomes for heart failure patients with a mid-range ejection fraction. AB - AIMS: Heart failure (HF) patients with a mid-range ejection fraction (HFmrEF) are not well characterized. Accordingly, we examined the epidemiology, pathophysiology and clinical outcomes of HF patients with a left ventricular ejection fraction (LVEF) of 40-50%. METHODS AND RESULTS: We identified 168 patients with an LVEF between 40-50% at enrollment into a HF registry, and determined whether LVEF was improved, worsened, or the same compared to a prior LVEF. Three subgroups of HFmrEF patients were identified: HFmrEF improved (prior LVEF <40%); HFmrEF deteriorated (prior LVEF >50%); HFmrEF unchanged (prior LVEF 40-50%). The majority of patients (73%) were HFmrEF improved, 17% were HFmrEF deteriorated, and 10% were HFmrEF unchanged. The demographics of the HFmrEF cohort were heterogeneous, with more coronary artery disease in the HFmrEF improved group and more hypertension and diastolic dysfunction in the HFmrEF deteriorated group. HFmrEF improved patients had significantly (P<0.001) better clinical outcomes relative to matched patients with HF and reduced ejection fraction, and significantly (P<0.01) improved clinical outcomes relative to HFmrEF deteriorated patients, whereas clinical outcomes of the HFmrEF deteriorated subgroup of patients were not significantly different from matched HF patients with preserved ejection fraction. CONCLUSIONS: Patients with a mid range LVEF are heterogeneous. Obtaining historical information with regard to prior LVEF allows one to identify a distinct pathophysiological substrate and clinical course for HFmrEF patients. Viewed together, these results suggest that in the modern era of HF therapeutics, the use of LVEF to categorize the pathophysiology of HF may be misleading, and argue for establishing a new taxonomy for classifying HF patients. PMID- 29024351 TI - What Are Women Told When Requesting Family Planning Services at Clinics Associated with Catholic Hospitals? A Mystery Caller Study. AB - CONTEXT: Catholic Church directives restrict family planning service provision at Catholic health care institutions. It is unclear whether obstetrics and gynecology clinics that are owned by or have business affiliations with Catholic hospitals offer family planning appointments. METHODS: Mystery callers phoned 144 clinics nationwide that were found on Catholic hospital websites between December 2014 and February 2016, and requested appointments for birth control generally, copper IUD services specifically, tubal ligation and abortion. Chi-square and Fisher's exact tests assessed potential correlates of appointment availability, and multivariable logistic regressions were computed if bivariate testing suggested multiple correlates. RESULTS: Although 95% of clinics would schedule birth control appointments, smaller proportions would schedule appointments for copper IUDs (68%) or tubal ligation (58%); only 2% would schedule an abortion. Smaller proportions of Catholic-owned than of Catholic-affiliated clinics would schedule appointments for birth control (84% vs. 100%), copper IUDs (4% vs. 97%) and tubal ligation (29% vs. 72%); for birth control and copper IUD services, no other clinic characteristics were related to appointment availability. Multivariable analysis confirmed that tubal ligation appointments were less likely to be offered at Catholic-owned than at Catholic-affiliated clinics (odds ratio. 0.1); location and association with one of the top 10 Catholic health care systems also were significant. CONCLUSIONS: Adherence to church directives is inconsistent at Catholic-associated clinics. Women visiting such clinics who want highly effective methods may need to rely on less effective methods or delay method uptake while seeking services elsewhere. PMID- 29024352 TI - Characterization of the Conjugation Pattern in Large Polysaccharide-Protein Conjugates by NMR Spectroscopy. AB - Carbohydrate-based vaccines are among the safest and most effective vaccines and represent potent tools for prevention of life-threatening bacterial infectious diseases, like meningitis and pneumonia. The chemical conjugation of a weak antigen to protein as a source of T-cell epitopes generates a glycoconjugate vaccine that results more immunogenic. Several methods have been used so far to characterize the resulting polysaccharide-protein conjugates. However, a reduced number of methodologies has been proposed for measuring the degree of saccharide conjugation at the possible protein sites. Here we show that detailed information on large proteins conjugated with large polysaccharides can be achieved by a combination of solution and solid-state NMR spectroscopy. As a test case, a large protein assembly, l-asparaginase II, has been conjugated with Neisseria meningitidis serogroup C capsular polysaccharide and the pattern and degree of conjugation were determined. PMID- 29024353 TI - Exercise and physical activity for patients with end-stage liver disease: Improving functional status and sarcopenia while on the transplant waiting list. AB - Sarcopenia and physical deconditioning are frequent complications in patients with cirrhosis and end-stage liver disease (ESLD). They are the end result of impaired dietary intake, chronic inflammation, altered macronutrient and micronutrient metabolism, and low physical activity. Frailty is the end result of prolonged sarcopenia and physical deconditioning. It severely affects a patient's functional status and presents in approximately 1 in 5 patients on the liver transplantation waiting list. Sarcopenia, poor physical fitness/cardiopulmonary endurance (CPE), and frailty are all associated with increased mortality in ESLD. Clinical trials addressing the usefulness of exercise in patients with cirrhosis have shown that it improves the metabolic syndrome, sarcopenia, CPE, health related quality of life, and hepatic venous pressure gradient. Although evidence on the benefits of exercise on clinical outcomes derived from large clinical trials is still missing, based on existing literature from multiple medical subspecialties, we believe that an exercise program coupled to a tailored nutritional intervention benefits both cardiopulmonary and musculoskeletal functions, ultimately translating into improved functional status, sense of well being, and possibly less complications from portal hypertension. In conclusion, although supervised exercise training is the prevailing approach to manage ESLD patients, such intervention is not sustainable or feasible for most patients. Innovative home-based physical activity interventions may be able to effectively reach a larger number of patients. Liver Transplantation 24 122-139 2018 AASLD. PMID- 29024354 TI - Cyclodextrin-Based Formulations: A Non-Invasive Platform for Targeted Drug Delivery. AB - Cyclodextrins (CDs) are recognized as promising pharmaceutical excipients due to their unique ability to form water-soluble inclusion complexes with various poorly soluble compounds. The numerous investigations on CDs and their use in nanomedicine have received considerable attention in the last three decades, leading to the rapid development of new CD-containing formulations that significantly facilitate targeted drug delivery and controlled drug release, with consequent improvements in drug bioavailability. This MiniReview highlights the efficacy and recent uses of CDs for non-invasive drug delivery. Using ophthalmic and nasal drug delivery as examples, an overview of chemical properties, mechanisms of CDs on drug solubilization, stabilization and permeation, along with their toxicological profiles relevant to nasal and ocular administration, are provided and discussed. The recent development and application of CD-based nanocarrier systems for targeted drug delivery are summarized. PMID- 29024355 TI - Genetic testing of individuals with pre-senile cataract identifies patients with myotonic dystrophy type 2. PMID- 29024357 TI - Transcranial direct current stimulation in stroke rehabilitation: ready to move to randomized clinical trials and clinical practice? The issue of safety guidelines. PMID- 29024358 TI - Comment on 'Acute flaccid myelitis in childhood: a retrospective cohort study'. PMID- 29024359 TI - Paravalvular leak closure under intracardiac echocardiographic guidance. AB - OBJECTIVES: The objective of this study was to determine the safety and efficacy of intracardiac echocardiography (ICE) to guide percutaneous paravalvular leak (PVL) closure. BACKGROUND: PVL following surgical valve replacement occurs in 2% 15% of patients. Percutaneous treatment is an accepted management strategy in patients deemed to be too high risk for redo surgery. This is most commonly performed with transesophageal (TOE) guidance requiring general anesthesia that both potentially further increase the risk of intervention. ICE can be used to guide intervention, facilitating procedures to be performed under local anesthesia without esophageal intubation potentially making procedures shorter and safer and further enabling the treatment of patients that may have been turned down for intervention. METHODS: All patients that underwent ICE-guided percutaneous transcatheter PVL closure between 2006 and 2016 at the John Radcliffe Hospital, Oxford, United Kingdom were retrospectively analyzed. RESULTS: Twenty-one procedures were performed in 18 patients during the study period. Fourteen patients (77.8%) underwent successful ICE guided PVL closure. There were no ICE-related complications. Eleven patients (78.6%) reported symptomatic improvement of at least one New York Heart Association (NYHA) Class and the remaining 3 patients had no change. No patient demonstrated objective evidence of persistent hemolysis following successful closure. There was one death within 30 days of the procedure and 1 year survival was 71.4%. CONCLUSIONS: Percutaneous paravalvular leak closure guided by ICE without the requirement of general anesthesia is feasible, safe, and associated with acceptable procedural success rates. PMID- 29024360 TI - Synthesis of carbon-based quantum dots from starch extracts: Optical investigations. AB - Carbon-based quantum dots (C-QDs) were synthesized through microwave-assisted carbonization of an aqueous starch suspension mediated by sulphuric and phosphoric acids. The as-prepared C-QDs showed blue, green and yellow luminescence without the addition of any surface-passivating agent. The C-QDs were further analyzed by UV-vis spectroscopy to measure the optical response of the organic compound. The energy gaps revealed narrow sizing of C-QDs in the semiconductor range. The optical refractive index and dielectric constant were investigated. The C-QDs size distribution was characterized. The results suggested an easy route to the large scale production of C-QDs materials. PMID- 29024361 TI - Emotional processing in obesity: a systematic review and exploratory meta analysis. AB - The role of emotional functioning in the development and maintenance of obesity has been investigated, but the literature is poorly integrated. A systematic review and meta-analysis was performed to explore emotional processing impairments in obesity. PubMed, Web of Knowledge and PsycINFO databases were searched in March 2016, yielding 31 studies comparing emotional processing competencies in individuals with obesity, with or without binge eating disorder (BED), and control groups. Meta-analyses demonstrated that individuals with obesity had higher scores of alexithymia (d = 0.53), difficulty in identifying feelings (d = 0.34) and externally oriented thinking style (d = 0.31), when compared with control groups. On other competencies, patients with obesity, especially those with comorbid BED, reported lower levels of emotional awareness and difficulty in using emotion regulation strategies, namely, reduced cognitive reappraisal and acceptance, and greater suppression of expression. No evidence of impaired ability to recognize emotions in others or verbally express emotions was found. A general emotion-processing deficit in obesity was not supported. Instead, an emotional avoidance style may occur modulating later responses of emotion regulation. Additional research is needed to extend the comprehension of these conclusions and the role of BED in emotional functioning in obesity. PMID- 29024362 TI - The Impact of Entrepreneurial Leadership on Nurses' Innovation Behavior. AB - PURPOSE: The purpose of this study was to examine the influence of entrepreneurial leadership on nurses' innovation work behavior and its dimensions. DESIGN AND METHODS: This cross-sectional study employed the 10-item Innovation Work Behavior Questionnaire and the 8-item Entrepreneurial Leadership Questionnaire to explore the impact of entrepreneurial leadership on the innovation work behavior of 273 nurses from public and private hospitals in Iran. FINDINGS: Entrepreneurial leadership had a significant positive impact on nurses' innovation work behavior and most strongly improved idea exploration, followed by idea generation, idea implementation, and idea championing. CONCLUSIONS: Entrepreneurial leadership was effective in enhancing nurses' innovation work behavior. More attention needs to be focused on developing entrepreneurial leadership competencies and on developing nurse leaders. CLINICAL RELEVANCE: Healthcare policies and strategies are needed to facilitate the implementation of entrepreneurial leadership by providing healthcare leaders with the appropriate environment. PMID- 29024363 TI - Prevalence, predictors and correlates of insomnia in US army soldiers. AB - The objective of this study was to investigate the rates, predictors and correlates of insomnia in a national sample of US Army soldiers. Data were gathered from the cross-sectional survey responses of the All-Army Study, of the Army Study to Assess Risk and Resilience in Service members. Participants were a representative sample of 21 499 US Army soldiers who responded to the All-Army Study self-administered questionnaire between 2011 and 2013. Insomnia was defined by selected DSM-5 criteria using the Brief Insomnia Questionnaire. The results highlight significant functional difficulties associated with insomnia among US soldiers, as well as insights into predictors of insomnia specific to this population. Insomnia was present in 22.76% of the sample. Predictors of insomnia status in logistic regression included greater number of current mental health disorders, less perceived open lines of communication with leadership, less unit member support and less education. Insomnia had global, negative associations with health, social functioning, support, morale, work performance and Army career intentions. The results provide the strongest evidence to-date that insomnia is common in a military population, and is associated with a wide array of negative factors in the domains of health, military readiness and intentions to remain in military careers. PMID- 29024364 TI - Healthcare utilization after liver transplantation is highly variable among both centers and recipients. AB - The relationship between healthcare utilization before and after liver transplantation (LT), and its association with center characteristics, is incompletely understood. This was a retrospective cohort study of 34 402 adult LTs between 2002 and 2013 using Vizient inpatient claims data linked to the United Network for Organ Sharing (UNOS) database. Multivariable mixed-effects linear regression models evaluated the association between hospitalization 90 days pre-LT and the number of days alive and out of the hospital (DAOH) 1 year post-LT. Of those patients alive at LT discharge, 24.7% spent >=30 days hospitalized during the first year. Hospitalization in the 90 days pre-LT was inversely associated with DAOH (beta = -3.4 DAOH/week hospitalized pre-LT; P = .002). Centers with >30% of their liver transplant recipients hospitalized >=30 days in the first LT year were typically smaller volume and/or transplanting higher risk recipients (Model for End-Stage Liver Disease [MELD] score >=35, inpatient or ventilated pre-LT). In conclusion, pre-LT hospitalization predicts 1 year post-LT hospitalization independent of MELD score at the patient-level, whereas center-specific post-LT healthcare utilization is associated with certain center behaviors and selection practices. PMID- 29024366 TI - Tethyan changes shaped aquatic diversification. AB - The Tethys Ocean existed between the continents of Gondwana and Laurasia from the Triassic to the Pliocene. Analyses of multiple biogeographic and phylogenetic histories reveal that the subsequent breakup of the Tethys greatly influenced the distributions of many species. The ancestral Tethyan realm broke into five biogeographic provinces, including the present-day East Pacific, West Atlantic, East Atlantic, Mediterranean Sea, and Indo-West Pacific. Palaeogeographic maps illustrate the Mesozoic Atlantic opening, the Cenozoic closure of the Tethys, the Messinian Salinity Crisis, the mid-Miocene closure of the Central American Seaway, and Quaternary geological changes. Further, we consider Cenozoic sea level changes and the formation of freshwater habitats. These reconstructions allow assessment of patterns of aquatic diversification for marine and freshwater animals, and comparison of vicariance and dispersal processes. Estimated divergence times indicate that fragmentation of the Tethys was responsible for the vicariant speciation of aquatic animals because these dates are consistent with associated tectonic events. The opening of the Atlantic Ocean during the Cretaceous is responsible for the earliest isolation between the West and East Atlantic. The mid-Miocene closure of the Tethys, which blocked global equatorial currents, appears to have isolated the Atlantic/Mediterranean Sea and Indo-West Pacific. Finally, formation of the Isthmus of Panama isolated East Pacific and West Atlantic marine organisms. Dispersals related to the Messinian Salinity Crisis and Quaternary sea-level changes influenced population structuring. Tethyan changes affected marine habitats, created new freshwater habitats, inland caves and ancient lakes along the Alps and Himalayas, and influenced anchialine caves at the edge of the ancient sea. The extensive new habitats provided opportunities for colonisation and rapid diversification. Future work should focus on testing the biological impact of the series of Tethyan changes. PMID- 29024365 TI - Non-target site SDHI resistance is present as standing genetic variation in field populations of Zymoseptoria tritici. AB - BACKGROUND: A new generation of more active succinate dehydrogenase (Sdh) inhibitors (SDHIs) is currently widely used to control Septoria leaf blotch in northwest Europe. Detailed studies were conducted on Zymoseptoria tritici field isolates with reduced sensitivity to fluopyram and isofetamid; SDHIs which have only just or not been introduced for cereal disease control, respectively. RESULTS: Strong cross-resistance between fluopyram and isofetamid, but not with other SDHIs, was confirmed through sensitivity tests using laboratory mutants and field isolates with and without Sdh mutations. The sensitivity profiles of most field isolates resistant to fluopyram and isofetamid were very similar to a lab mutant carrying SdhC-A84V, but no alterations were found in SdhB, C and D. Inhibition of mitochondrial Sdh enzyme activity and control efficacy in planta for those isolates was severely impaired by fluopyram and isofetamid, but not by bixafen. Isolates with similar phenotypes were not only detected in northwest Europe but also in New Zealand before the widely use of SDHIs. CONCLUSION: This is the first report of SDHI-specific non-target site resistance in Z. tritici. Monitoring studies show that this resistance mechanism is present and can be selected from standing genetic variation in field populations. (c) 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. PMID- 29024367 TI - Commissioning guidance for weight assessment and management in adults and children with severe complex obesity. AB - The challenge of managing the epidemic of patients with severe and complex obesity disease in secondary care is largely unmet. In England, the National Institute of Health and Care Excellence and the National Health Service England have published guidance on the provision of specialist (non-surgical) weight management services. We have undertaken a systematic review of 'what evidence exists for what should happen in/commissioning of: primary or secondary care weight assessment and management clinics in patients needing specialist care for severe and complex obesity?' using an accredited methodology to produce a model for organization of multidisciplinary team clinics that could be developed in every healthcare system, as an update to a previous review. Additions to the previous guidance were multidisciplinary team pathways for children/adolescent patients and their transition to adult care, anaesthetic assessment and recommendations for ongoing shared care with general practitioners, as a chronic disease management pathway. PMID- 29024369 TI - Facile Supramolecular Processing of Carbon Nanotubes and Polymers for Electromechanical Sensors. AB - We herein report a facile, cost-competitive, and scalable method for producing viscoelastic conductors via one-pot melt-blending using polymers and supramolecular gels composed of carbon nanotubes (CNTs), diphenylamine (DP), and benzophenone (BP). When mixed, a non-volatile eutectic liquid (EL) produced by simply blending DP with BP (1:1 molar ratio) enabled not only the gelation of CNTs (EL-CNTs) but also the dissolution of a number of commodity polymers. To make use of these advantages, viscoelastic conductors were produced via one-pot melt-blending the EL and CNTs with a model thermoplastic elastomer, poly(styrene b-butadiene-b-styrene) (SBS, styrene 30 wt %). The resulting composites displayed an excellent electromechanical sensory along with re-mendable properties. This simple method using cost-competitive EL components is expected to provide an alternative to the use of expensive ionic liquids as well as to facilitate the fabrication of novel composites for various purposes. PMID- 29024368 TI - Measuring the effectiveness of management interventions at regional scales by integrating ecological monitoring and modelling. AB - BACKGROUND: Because of site-specific effects and outcomes, it is often difficult to know whether a management strategy for the control of pests has worked or not. Population dynamics of pests are typically spatially and temporally variable. Moreover, interventions at the scale of individual fields or farms are essentially unreplicated experiments; a decrease in a target population following management cannot safely be interpreted as success because, for example, it might simply be a poor year for that species. Here, we argue that if large-scale data are available, population models can be used to measure outcomes against the prevailing mean and variance. We apply this approach to the problem of rotational management of the weed Alopecurus myosuroides. RESULTS: We derived density structured population models for a set of fields that were not subject to rotational management (continuous winter wheat) and another group that were (rotated into spring barley to control A. myosuroides). We used these models to construct means and variances of the outcomes of management for given starting conditions, and to conduct transient growth analysis. We show that, overall, this management strategy is successful in reducing densities of weeds, albeit with considerable variance. However, we also show that one variant (rotation to spring barley along with variable sowing) shows little evidence for additional control. CONCLUSION: Our results suggest that rotational strategies can be effective in the control of this weed, but also that strategies require careful evaluation against a background of spatiotemporal variation. (c) 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. PMID- 29024370 TI - Classification of Heat-Related Illness Symptoms Among Florida Farmworkers. AB - BACKGROUND: Farmworkers working in hot and humid environments have an increased risk for heat-related illness (HRI) if their thermoregulatory capabilities are overwhelmed. The manifestation of heat-related symptoms can escalate into life threatening events. Increasing ambient air temperatures resulting from climate change will only exacerbate HRI in vulnerable populations. We characterize HRI symptoms experienced by farmworkers in three Florida communities. METHODS: A total of 198 farmworkers enrolled in 2015-2016 were asked to recall if they experienced seven HRI symptoms during the previous work week. Multivariable logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the association between selected sociodemographic characteristics and reporting three or more symptoms. Latent class analysis was used to identify classes of symptoms representing the HRI severity range. We examined sociodemographic characteristics of the farmworkers across the latent classes. RESULTS: The mean age (+/-SD) of farmworkers was 38.0 (+/-8) years; the majority were female (60%) and Hispanic (86%). Most frequently reported symptoms were heavy sweating (66%), headache (58%), dizziness (32%), and muscle cramps (30%). Females had three times the odds of experiencing three or more symptoms (OR = 2.86, 95% CI 1.18-6.89). Symptoms fell into three latent classes, which included mild (heavy sweating; class probability = 54%), moderate (heavy sweating, headache, nausea, and dizziness; class probability = 24%), and severe (heavy sweating, headache, nausea, dizziness, muscle cramps; class probability = 22%). CONCLUSIONS: Farmworkers reported a high burden of HRI symptoms that appear to cluster in physiologic patterns. Unrecognized accumulation of symptoms can escalate into life-threatening situations if untreated. Our research can inform interventions to promote early recognition of HRI, on-site care, and appropriate occupational health policy. Administrative or engineering workplace controls may also reduce the manifestation of HRI. CLINICAL RELEVANCE: This study advances the current knowledge of HRI symptoms in farmworkers and moves beyond reporting individual symptoms by utilizing latent class analysis to identify how symptoms tend to co-occur together in this population. It acknowledges multiple symptoms occurring as a result of occupational heat exposure and highlights the importance of symptom recognition. PMID- 29024372 TI - Feedback Kinetics in Mechanochemistry: The Importance of Cohesive States. AB - Although mechanochemical synthesis is becoming more widely applied and even commercialised, greater basic understanding is needed if the field is to progress on less of a trial-and-error basis. We report that a mechanochemical reaction in a ball mill exhibits unusual sigmoidal feedback kinetics that differ dramatically from the simple first-order kinetics for the same reaction in solution. An induction period is followed by a rapid increase in reaction rate before the rate decreases again as the reaction goes to completion. The origin of these unusual kinetics is found to be a feedback cycle involving both chemical and mechanical factors. During the reaction the physical form of the reaction mixture changes from a powder to a cohesive rubber-like state, and this results in the observed reaction rate increase. The study reveals that non-obvious and dynamic rheological changes in the reaction mixture must be appreciated to understand how mechanochemical reactions progress. PMID- 29024371 TI - Understanding parent-teacher agreement of the Strengths and Difficulties Questionnaire (SDQ): Comparison across seven European countries. AB - Assessments of child psychopathology are often derived from parental and teacher reports, yet there is substantial disagreement. This study utilized data from 7 European countries to examine parent-teacher agreement and possible explanatory factors for parent-teacher disagreement such as child and family characteristics, parenting dimensions, and maternal distress were explored. Parent-teacher agreement of the Strengths and Difficulties Questionnaire were assessed using a cross-sectional survey of 4,894 school aged children 6-11 from the School Children Mental Health Europe Project. Parent-teacher agreement was low to moderate (Pearson correlation ranging from .24 (Prosocial) to .48 (Hyperactivity) for the 5 subscales across 7 countries); kappa coefficient ranged from .01 (Turkey) to .44 (Italy) for internalizing problems and .19(Romania) to .44(Italy) for externalizing problems. Child's gender and age, mother's employment status, single parent home, number of children in household, and selected parenting dimension were found to be explanatory of informant disagreement. This study not only serves to advance our understanding of parent-teacher agreement of the Strengths and Difficulties Questionnaire in 7 European countries but provides a novel approach to examining the factors that contribute to informant disagreement. PMID- 29024373 TI - Pulmonary vascular disease due to left heart disease: how to achieve a more accurate approach beyond the haemodynamic phenotype: reply. PMID- 29024375 TI - Artificial urine and FBS supplemented media in cytocompatibility assays for PLGA PEG-based intravesical devices using the urothelium cell line UROtsa. AB - European and German directives for approval of new medical devices require tests for cytotoxicity in relevant media, since urine can influence cytotoxicity of biodegradable devices. The aim of this study was to determine the long-term cytotoxicity of PLGA-b-mPEG (PLGA-PEG) polymer carriers and artificial urine (AU) to human UROtsa cells. Benign urothelial UROtsa cells were incubated in fetal bovine serum-containing RPMI 1640 medium supplemented with a range of concentrations of AU for 24 h and 7 days. Cell viability was determined by the XTT assay and by live/dead staining. The cytotoxicity of medium containing degradation products from PLGA-PEG carriers was also tested on the UROtsa cells in AU-containing and control medium. PLGA-PEG carriers exhibited no cytotoxicity to UROtsa cells after 24 h of incubation. However, after 7 days, cytotoxicity was observed, but this was largely attributable to the effects of 30% AU on the cells. Compared to phosphate buffer saline (PBS) and normalized to RPMI 1640 medium, significant cytotoxicity was observed by 24 h in medium containing 50% AU and by 7 days in medium containing 30% AU. Live/Dead staining confirmed proliferation results and no pH-changes could be observed. Here we demonstrate for the first time the impact of AU on standard cytotoxicity tests related to biomaterials for urinary-tract applications. Our study showed cytotoxic effects of high concentrations of 50% AU by 24 h and by physiological concentrations of AU (i.e., 30%) by 7 days. We have also demonstrated that PLGA-PEG has no cytotoxic effects in the appropriate AU-containing test environment. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2140 2147, 2018. PMID- 29024376 TI - Evaluation of collagen foam, poly(l-lactic acid) nanofiber mesh, and decellularized matrices for corneal regeneration. AB - Corneal tissue engineering efforts to obtain corneal tissue matrices through various types of materials for the replacement of damaged tissues. In this study, three different corneal constructs were prepared and evaluated in terms of morphological, optical, and biological characteristics. Type-I collagen was used to obtain collagen foam scaffolds through dehydrothermal crosslinking, while poly(l-lactic acid) (PLLA) was used to produce both random and aligned oriented electrospun corneal constructs. Bovine corneas were decellularized as third matrix. Software analyses showed that average pore size of collagen scaffolds was 88.207 +/- 29.7 um, while the average fiber diameter of aligned and random PLLA scaffolds were 0.69 +/- 0.03 and 0.65 +/- 0.03 MUm, respectively. Degradation profiles revealed that collagen foam exhibits high degradation (20% mass loss) while electrospun PLLA scaffolds hold low degradation (9% mass loss) rates at day 28. Transmittance values of the obtained scaffolds were calculated as 92, 80, and 70% for collagen, PLLA, and decellularized cornea constructs, respectively. The evaluation of stromal keratocyte behavior on the constructs revealed that the cells exhibited their own morphology mostly on the aligned PLLA constructs, while they were mostly active on random PLLA electrospun corneal scaffolds. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2157 2168, 2018. PMID- 29024377 TI - Forcing Ladderenes into Plastic Semiconductors with Mechanochemistry. AB - May the force be with you: Xia, Burns, Martinez, and co-workers harnessed the ring strain of ladderenes to enable both their polymerization and mechanochemical unzipping to yield semiconducting polyacetylene-based block copolymers. These materials have promise as functional polymers for applications such as detection of physical stress. PMID- 29024374 TI - Human papillomavirus and posttransplantation cutaneous squamous cell carcinoma: A multicenter, prospective cohort study. AB - Organ transplant recipients (OTRs) have a 100-fold increased risk of cutaneous squamous cell carcinoma (cSCC). We prospectively evaluated the association between beta genus human papillomaviruses (betaPV) and keratinocyte carcinoma in OTRs. Two OTR cohorts without cSCC were assembled: cohort 1 was transplanted in 2003-2006 (n = 274) and cohort 2 was transplanted in 1986-2002 (n = 352). Participants were followed until death or cessation of follow-up in 2016. betaPV infection was assessed in eyebrow hair by using polymerase chain reaction-based methods. betaPV IgG seroresponses were determined with multiplex serology. A competing risk model with delayed entry was used to estimate cumulative incidence of histologically proven cSCC and the effect of betaPV by using a multivariable Cox regression model. Results are reported as adjusted hazard ratios (HRs). OTRs with 5 or more different betaPV types in eyebrow hair had 1.7 times the risk of cSCC vs OTRs with 0 to 4 different types (HR 1.7, 95% confidence interval 1.1 2.6). A similar risk was seen with high betaPV loads (HR 1.8, 95% confidence interval 1.2-2.8). No significant associations were seen between serum antibodies and cSCC or between betaPV and basal cell carcinoma. The diversity and load of betaPV types in eyebrow hair are associated with cSCC risk in OTRs, providing evidence that betaPV is associated with cSCC carcinogenesis and may present a target for future preventive strategies. PMID- 29024378 TI - The CYCLOCALYX study: Ovulatory cycle affects circulating compartments of the endothelial glycocalyx in blood. AB - PROBLEM: The endothelial glycocalyx (EGX) plays an important role in vascular integrity. Recently, increased levels of EGX components were detected in the circulating blood of healthy pregnant women and were related to the increased tendency to edema formation during gestation. However, the EGX has not yet been systematically studied in non-pregnant women during ovulatory cycles. METHOD OF STUDY: Serum levels of EGX components syndecan-1, heparan sulfate, and hyaluronan in healthy women (n = 16) at 3 phases of the ovulatory cycle (early follicular phase, at ovulation, and mid-luteal phase) were compared with a control group of healthy men (n = 10). Using immunofluorescence microscopy in cultured human umbilical vein endothelial cells, the effects of progesterone and estrogen on the EGX were measured. RESULTS: Syndecan-1 increased from 11.1 +/- 2.4 ng/mL at ovulation to 12.6 +/- 2.3 ng/mL in mid-luteal phase (P = .031) and of heparan sulfate from 663 +/- 35 ng/mL to 782 +/- 55 ng/mL (P = .011). In contrast to estrogen, there was a detrimental effect of progesterone on the EGX in HUVECs. CONCLUSION: The relationship between the natural menstrual cycle and the EGX as an indicator of vascular permeability may provide a new explanation for premenstrual edema in healthy women. This may be an attendant phenomenon of a regular physiological process, the hormonal downregulation of the vascular barrier during pregnancy. PMID- 29024379 TI - Can a renal nurse assess fluid status using ultrasound on the inferior vena cava? A cross-sectional interrater study. AB - INTRODUCTION: Ultrasound of the inferior vena cava (IVC-US) has been used to estimate intravascular volume status and fluid removal during a hemodialysis session. Usually, renal nurses rely on other, imprecise methods to determine ultrafiltration. To date, no study has examined whether renal nurses can reliably perform ultrasound for volume assessment and for potential prevention of intradialytic hypotension. This pilot study aimed to determine if a renal nurse could master the skill of performing and correctly interpreting Point of Care Ultrasound on patients receiving hemodialysis. METHODS: After receiving theoretical training and performing 100 training scans, a renal nurse performed 60 ultrasound scans on 10 patients. These were categorized by the nurse into hypovolemic, euvolemic, or hypervolemic through measurement of the maximal diameter and degree of collapse of the IVC. Scans were subsequently assessed for adequacy and quality by two sonologists, who were blinded to each other's and the nurse's results. FINDINGS: The interrater reliability of 60 scans was good, with intraclass correlation 0.79 (95% confidence interval (CI) =0.63-0.87) and with a good interrater agreement for the following estimation of intravascular volume (Cohen's weighted Kappa kappaw = 0.62), when comparing the nurse to an expert sonographer. DISCUSSION: A renal nurse can reliably perform ultrasound of the IVC in hemodialysis patients, obtaining high quality scans for volume assessment of hemodialysis patients. This novel approach could be more routinely applied by other renal nurses to obtain objective measures of patient volume status in the dialysis setting. PMID- 29024381 TI - An integrated community-based outpatient therapeutic feeding programme for severe acute malnutrition in rural Southern Ethiopia: Recovery, fatality, and nutritional status after discharge. AB - A scaled up and integrated outpatient therapeutic feeding programme (OTP) brings the treatment of severely malnourished children closer to the community. This study assessed recovery from severe acute malnutrition (SAM), fatality, and acute malnutrition up to 14 weeks after admission to a programme integrated in the primary health care system. In this cohort study, 1,048 children admitted to 94 OTPs in Southern Ethiopia were followed for 14 weeks. Independent anthropometric measurements and information on treatment outcome were collected at four home visits. Only 32.7% (248/759) of children with SAM on admission fulfilled the programme recovery criteria at the time of discharge (i.e., gained 15% in weight, or oedema, if present at admission, was resolved at discharge). Of all children admitted to the programme for whom nutritional assessment was done 14 weeks later, 34.6% (321/928) were severely malnourished, and 37.5% (348/928) were moderately malnourished; thus, 72.1% were acutely malnourished. Of the children, 27/982 (2.7%) had died by 14 weeks, of whom all but one had SAM on admission. Children with severe oedema on admission had the highest fatality rate (12.0%, 9/75). The median length of admission to the programme was 6.6 weeks (interquartile range: 5.3, 8.4 weeks). Despite children participating for the recommended duration of the programme, many children with SAM were discharged still acutely malnourished and without reaching programme criteria for recovery. For better outcome of OTP, constraints in service provision by the health system as well as challenges of service utilization by the beneficiaries should be identified and addressed. PMID- 29024382 TI - Comparison of outcomes with surgical cut-down versus percutaneous transfemoral transcatheter aortic valve replacement: TAVR transfemoral access comparisons between surgical cut-down and percutaneous approach. AB - OBJECTIVES: The objective is to compare the short-term (30 days) and late (12 months) vascular adverse events in patients undergoing transfemoral (TF) transcatheter aortic valve replacement (TAVR) by surgical cut-down (SC) vs. percutaneous (PC) approaches. BACKGROUND: Programs continue to utilize both approaches in TF-TAVR. There are limited data comparing outcomes by SC vs. PC approaches and long-term effects of endovascular intervention facilitated hemostasis on late vascular adverse events. METHODS: A total of 146 men and women aged 79.7 +/- 10.0 years with severe aortic stenosis deemed extreme or high risk for surgery underwent TAVR via TF access. 61 had SC and 85 had PC approaches. Valve Academic Research Consortium (VARC-2) outcomes were assessed at an average of 12.1 months after TAVR. RESULTS: Hospital length of stay (LOS) post-TAVR was shorter for the PC group compared to the SC group (5.1 +/- 3.9 vs. 8.2 +/- 6.6 days; P < 0.001). More patients were discharged directly to home in the PC than the SC group (85.9% vs. 68.9%, P < 0.05). At 30 days, there were 13/61 (21.3%) and 16/85 (18.8%; P < 0.05) of any vascular events, and 2/61 (3.3%) and 2/85 (2.4%; P = 0.73) major vascular events in the SC and PC groups, respectively. There was no difference in all-cause mortality between the SC (14/61; 23%) and PC groups [17/85 (20%); P = 0.34]. There was no difference in any [4/33 (12%) vs. 3/43 (7%); P = 0.84] or major vascular adverse events [1/33 (3%) vs. 1/43 (2%); P = 0.79] in subjects that underwent adjunctive endovascular intervention compared to those who did not, respectively. There were no statistically significant univariate or multivariate predictors of any vascular event at 12 months when comparing SC to PC groups. CONCLUSION: For TF TAVR, the PC approach, when compared to the SC approach, is associated with a shorter hospital LOS and higher rate of direct discharge to home with similar risk of vascular complications, late vascular adverse events, and all-cause mortality at 12 months. PMID- 29024383 TI - Down-regulation of LncRNA CCAT1 enhances radiosensitivity via regulating miR-148b in breast cancer. AB - LncRNA colon-cancer-associated transcript-1 (CCAT1) was proved to be a potential prognostic biomarker for breast cancer progression. However, the role of CCAT1 in regulating radiosensitivity of breast cancer and its underlying mechanism have not been investigated. The present study showed that CCAT1 was up-regulated and miR-148b was down-regulated in radioresistant breast cancer tissues compared with radiosensitive breast cancer tissues. Radiation treatment triggered a significant increase in CCAT1 and an obvious decrease in miR-148b. CCAT1 down-regulation reduced colony formation rates and caspase3 activity in breast cancer cells under irradiation. Moreover, CCAT1 could negatively regulate miR-148b expression. Furthermore, overexpression of miR-148b suppressed colony survival fraction and caspase3 expression under irradiation in breast cancer cells, which was exacerbated by CCAT1 knockdown. Taken together, this study demonstrated that CCAT1 down-regulation improved radiosensitivity of breast cancer cells via negatively regulating miR-148b expression, providing a crucial clue for lncRNA miRNA interaction in the mechanism of radiosensitivity of breast cancer. PMID- 29024380 TI - Cell-to-cell communication: microRNAs as hormones. AB - Mammalian cells can release different types of extracellular vesicles (EVs), including exosomes, microvesicles, and apoptotic bodies. Accumulating evidence suggests that EVs play a role in cell-to-cell communication within the tumor microenvironment. EVs' components, such as proteins, noncoding RNAs [microRNAs (miRNAs), and long noncoding RNAs (lncRNAs)], messenger RNAs (mRNAs), DNA, and lipids, can mediate paracrine signaling in the tumor microenvironment. Recently, miRNAs encapsulated in secreted EVs have been identified in the extracellular space. Mature miRNAs that participate in intercellular communication are released from most cells, often within EVs, and disseminate through the extracellular fluid to reach remote target cells, including tumor cells, whose phenotypes they can influence by regulating mRNA and protein expression either as tumor suppressors or as oncogenes, depending on their targets. In this review, we discuss the roles of miRNAs in intercellular communication, the biological function of extracellular miRNAs, and their potential applications for diagnosis and therapeutics. We will give examples of miRNAs that behave as hormones. PMID- 29024384 TI - A Hydrogen-Bonded Hexagonal Buckybowl Framework. AB - A hydrogen-bonded two-dimensionally networked buckybowl architecture is presented. Two types of hexagonal network (HexNet) structures (CPSM-1 and CPSM-2) have been achieved based on a sumanene derivative (CPSM) possessing 4,4' dicarboxy-o-terphenyl groups in the periphery. CPSM-1 has a waved HexNet structure with an alternate alignment of upward and downward bowls. CPSM-2 has a bilayered HexNet structure composed of hamburger-shaped dimers of the bowls. This demonstrates that non-planar pi-systems can be networked two-dimensionally by an appropriate supramolecular synthon to achieve structurally well-defined unique bumpy pi-sheets. Furthermore, we revealed that CPSM-2 undergoes anisotropic shrinking along the c axis by 11 % under high pressure conditions (970 MPa). The shrinkage is brought about by offset sliding between bumpy pi-surfaces of the bilayered HexNet sheets. PMID- 29024385 TI - Integrin beta-3 is required for the attachment, retention and therapeutic benefits of human cardiospheres in myocardial infarction. AB - Cardiovascular diseases remain the leading causes of death worldwide. Stem cell therapy offers a promising option to regenerate injured myocardium. Among the various types of stem cells, cardiosphere cells represent a mixture of intrinsic heart stem cells and supporting cells. The safety and efficacy of cardiosphere cells have been demonstrated in recent clinical trials. Cell-matrix interaction plays an important role in mediating the engraftment of injected stem cells. Here, we studied the role of integrin beta-3 in cardiosphere-mediated cell therapy in a mouse model of myocardial infarction. Our results indicated that inhibiting integrin beta-3 reduced attachment, retention and therapeutic benefits of human cardiospheres in mice with acute myocardial infarction. This suggests integrin beta-3 plays an important role in cardiosphere-mediated heart regeneration. PMID- 29024386 TI - Design of 3D Graphene-Oxide Spheres and Their Derived Hierarchical Porous Structures for High Performance Supercapacitors. AB - Graphene-oxide (GO) based porous structures are highly desirable for supercapacitors, as the charge storage and transfer can be enhanced by advancement in the synthesis. An effective route is presented of, first, synthesis of three-dimensional (3D) assembly of GO sheets in a spherical architecture (GOS) by flash-freezing of GO dispersion, and then development of hierarchical porous graphene (HPG) networks by facile thermal-shock reduction of GOS. This leads to a superior gravimetric specific capacitance of ~306 F g-1 at 1.0 A g-1 , with a capacitance retention of 93% after 10 000 cycles. The values represent a significant capacitance enhancement by 30-50% compared with the GO powder equivalent, and are among the highest reported for GO-based structures from different chemical reduction routes. Furthermore, a solid-state flexible supercapacitor is fabricated by constructing the HPG with polymer gel electrolyte, exhibiting an excellent areal specific capacitance of ~220 mF cm-2 at 1.0 mA cm-2 with exceptional cyclic stability. The work reveals a facile but efficient synthesis approach of GO-based materials to enhance the capacitive energy storage. PMID- 29024387 TI - Ethnic and population differences in the genetic predisposition to human obesity. AB - Obesity rates have escalated to the point of a global pandemic with varying prevalence across ethnic groups. These differences are partially explained by lifestyle factors in addition to genetic predisposition to obesity. This review provides a comprehensive examination of the ethnic differences in the genetic architecture of obesity. Using examples from evolution, heritability, admixture, monogenic and polygenic studies of obesity, we provide explanations for ethnic differences in the prevalence of obesity. The debate over definitions of race and ethnicity, the advantages and limitations of multi-ethnic studies and future directions of research are also discussed. Multi-ethnic studies have great potential to provide a better understanding of ethnic differences in the prevalence of obesity that may result in more targeted and personalized obesity treatments. PMID- 29024388 TI - Potential biomarkers in patients with systemic sclerosis. AB - AIM: Reduced capillary density is considered the hallmark of systemic sclerosis (SSc) leads to tissue hypoxia, a condition that usually induces angiogenesis. The objective of our study is to investigate mediators regulating angiogenesis in SSc and to correlate their levels with serological and clinical parameters. METHODS: vascular endothelial growth factor, fibroblast growth factor-2, endostatin, thrombospondin-1 and soluble vascular cell and intracellular adhesion molecules (sICAM-1 and sVCAM-1) were measured in sera of SSc and normal subjects by enzyme linked immunosorbent assay. RESULTS: Among the pro- and anti-angiogenic mediators, endostatin was significantly higher in SSc than in the control subjects. Out of the proteases involved in endostatin production, elastase but not cathepsin-L, was significantly increased in SSc patients. The soluble adhesion molecules sICAM-1 and sVCAM-1 were significantly increased and they occur in parallel. sICAM-1, but not sVCAM-1 positively correlates with the inflammatory markers C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). CONCLUSIONS: Endostatin, elastase and the soluble adhesion molecules (sICAM-1 and sVCAM-1) are potentially involved in the pathogenesis of SSc. Moreover, the significant correlation observed between sICAM-1 and CRP and ESR indicates that sICAM-1 might be a useful biomarker of the inflammatory state of the disease. PMID- 29024390 TI - Pollination in the Chilean Mediterranean-type ecosystem: a review of current advances and pending tasks. AB - We conducted a systematic review of the scientific literature published on plant pollinator interactions, from both the plant and pollinator perspective, in the Chilean Mediterranean-type ecosystem (MTE hereafter). Our search identified 69 published papers on 235 native plant species from 62 families. Less than 7.9% of the flowering species inhabiting the Chilean Mediterranean have been studied, and most studies were restricted to only one locality and one reproductive season. The geographic location of the studies differed from a random pattern, showing two well-defined areas where most studies were conducted. Likewise, most studies in the Andes Range were performed above 2000 m a.s.l. The number of species of flower visitor per plant species was low (4.25 +/- 0.22), which probably results from the historical and biogeographic isolation of Chile. This literature survey shows that studies relating floral traits with pollinator attraction and plant reproduction are the most frequent topics of research, reaching 37.6% of studies, followed by studies that examine pollination in relation to human impact (16.1%), micro- and macroevolution (14.0%), relationships between pollination and other ecological interactions (10.8%), community and network assessments (11.8%), and effects of abiotic variables on pollination interactions (9.7%). Our review highlights a lack of research on the effects of pollination for anthropogenic land use especially as agricultural practice is one of the most salient features of the Chilean MTE. Future directions to increase our understanding of the role of plant-pollinator relationships for biodiversity maintenance should include: to extend the taxonomic and geographic scope of research, to increase the number of spatial and temporal replicates, to increase the number of studies on pollination networks as they provide estimates of community complexity and putative stability, to develop studies that estimate the importance of pollination for plant demographic parameters and conservation, and to conduct studies that estimate the ecological service provided by Chilean native pollinators for crop yield and sustainable agriculture. PMID- 29024389 TI - In vivo properties of the disaggregase function of J-proteins and Hsc70 in Caenorhabditis elegans stress and aging. AB - Protein aggregation is enhanced upon exposure to various stress conditions and aging, which suggests that the quality control machinery regulating protein homeostasis could exhibit varied capacities in different stages of organismal lifespan. Recently, an efficient metazoan disaggregase activity was identified in vitro, which requires the Hsp70 chaperone and Hsp110 nucleotide exchange factor, together with single or cooperating J-protein co-chaperones of classes A and B. Here, we describe how the orthologous Hsp70s and J-protein of Caenorhabditis elegans work together to resolve protein aggregates both in vivo and in vitro to benefit organismal health. Using an RNAi knockdown approach, we show that class A and B J-proteins cooperate to form an interactive flexible network that relocalizes to protein aggregates upon heat shock and preferentially recruits constitutive Hsc70 to disaggregate heat-induced protein aggregates and polyQ aggregates that form in an age-dependent manner. Cooperation between class A and B J-proteins is also required for organismal health and promotes thermotolerance, maintenance of fecundity, and extended viability after heat stress. This disaggregase function of J-proteins and Hsc70 therefore constitutes a powerful regulatory network that is key to Hsc70-based protein quality control mechanisms in metazoa with a central role in the clearance of aggregates, stress recovery, and organismal fitness in aging. PMID- 29024392 TI - Is the kidney donor profile index (KDPI) universal or UNOS-specific? PMID- 29024393 TI - Directed Assembly of Gold Nanorods by Terminal-Base Pairing of Surface-Grafted DNA. AB - Directed assemblies of anisotropic metal nanoparticles exhibit attractive physical and chemical properties. However, an effective methodology to prepare differently directed assemblies from the same anisotropic nanoparticles is not yet available. Gold nanorods (AuNRs) region-selectively modified with different DNA strands can form side-by-side (SBS) and end-to-end (ETE) assemblies in a non crosslinking manner. When the complementary DNA is hybridized to the surface bound DNA, stacking interaction between the blunt ends takes place in the designated regions. Such AuNRs assemble into highly ordered structures, assisted by capillary forces emerging on the substrate surface. Moreover, insertion of a mercury(II)-mediated thymine-thymine base pair into the periphery of the DNA layer allows selective formation of the SBS or ETE assemblies from the strictly identical AuNRs with or without mercury(II). PMID- 29024391 TI - Orthogonal Expression of an Artificial Metalloenzyme for Abiotic Catalysis. AB - A cytochrome P450 was engineered to selectively incorporate Ir(Me) deuteroporphyrin IX (Ir(Me)-DPIX), in lieu of heme, in bacterial cells. Cofactor selectivity was altered by introducing mutations within the heme-binding pocket to discriminate the deuteroporphyrin macrocycle, in combination with mutations to the P450 axial cysteine to accommodate a pendant methyl group on the Ir(Me) center. This artificial metalloenzyme was investigated for activity in non-native metallocarbenoid-mediated olefin cyclopropanation reactions and showed enhanced activity for aliphatic and electron-deficient olefins when compared to the native heme enzyme. This work provides a general strategy to augment the chemical functionality of heme enzymes in cells with application towards abiotic catalysis. PMID- 29024394 TI - Encapsulating Co2 P@C Core-Shell Nanoparticles in a Porous Carbon Sandwich as Dual-Doped Electrocatalyst for Hydrogen Evolution. AB - A highly efficient and pH-universal hydrogen evolution reaction (HER) electrocatalyst with a sandwich-architecture constructed using zero-dimensional N and P-dual-doped core-shell Co2 P@C nanoparticles embedded into a 3 D porous carbon sandwich (Co2 P@N,P-C/CG) was synthesized through a facile two-step hydrothermal carbonization and pyrolysis method. The interfacial electron transfer rate and the number of active sites increased owing to the synergistic effect between the N,P-dual-doped Co2 P@C core-shell and sandwich-nanostructured substrates. The presence of a high surface area and large pore sizes improved the mass-transfer dynamics. This nanohybrid showed remarkable electrocatalytic activity toward the HER in a wide pH range with good stability. The computational study and experiments revealed that the carbon atoms close to the N and P dopants on the shell of Co2 P@N,P-C were effective active sites for HER catalysis and that both Co2 P and the N,P dopants gave rise to an optimized binding free energy of H on the active sites. PMID- 29024395 TI - Deep eutectic solvent based magnetic nanofluid in the development of stir bar sorptive dispersive microextraction: An efficient hyphenated sample preparation for ultra-trace nitroaromatic explosives extraction in wastewater. AB - A deep eutectic solvent based magnetic nanofluid was coupled with stir bar sorptive dispersive microextraction as a hyphenated sample preparation technique. The neodymium core magnetic stir bar was coated physically with nanofluid of magnetic carbon nanotube nanocomposites and deep eutectic solvents. The prepared nanofluid has magnetic and strong sorbing properties and is compatible with gas chromatography. In this nanofluid, the deep eutectic solvent acts simultaneously as both carrier and stabilizer for magnetic nanotubes. The predominant experimental variables affecting the extraction efficiency of nitroaromatic compounds were evaluated. Under the optimized conditions, the limit of detection and enrichment factor were in the range of 0.2-4.9 ng/L and 852-1480, respectively. The relative standard deviations were between 5.6 and 10.2% (n = 6). Method validation was performed by both spiking-recovery method and comparison of results with other methods. Finally, the proposed method was successfully applied for the extraction and pre-concentration of nitroaromatic explosives in water samples, followed by determination by gas chromatography with micro-electron capture detection. PMID- 29024396 TI - Health Impact of Climate Change in Older People: An Integrative Review and Implications for Nursing. AB - PURPOSE: Older people account for the highest proportion of mortality from extreme weather events associated with climate change. This article aims to describe the health impacts of climate change on older people. TYPE OF STUDY: An integrative review was conducted with 30 studies retrieved from PubMed, EBSCO, and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) on climate stressors, determinants of resilient capacity, risk factors, and health outcomes. FINDINGS: Heat, temperature variability, and air pollution increase mortality risk in older people, especially from cardiovascular and respiratory diseases. Floods are linked with increasing incidence of post-traumatic stress disorder, depression, and anxiety. Facing these adversities, older people exhibit both vulnerability and resilience. CONCLUSIONS: Research gaps exist in understanding the full spectrum of the resilience experience of older people, and appreciating areas wherein nursing can play a pivotal role. CLINICAL RELEVANCE: Recognizing the vulnerabilities of older people in the context of climate change is important. Identifying opportunities to promote resilience is an important focus for nurses to develop tailored and targeted nursing interventions. PMID- 29024397 TI - Li4 Ti5 O12 Anode: Structural Design from Material to Electrode and the Construction of Energy Storage Devices. AB - Spinel Li4 Ti5 O12 , known as a zero-strain material, is capable to be a competent anode material for promising applications in state-of-art electrochemical energy storage devices (EESDs). Compared with commercial graphite, spinel Li4 Ti5 O12 offers a high operating potential of ~1.55 V vs Li/Li+ , negligible volume expansion during Li+ intercalation process and excellent thermal stability, leading to high safety and favorable cyclability. Despite the merits of Li4 Ti5 O12 been presented, there still remains the issue of Li4 Ti5 O12 suffering from poor electronic conductivity, manifesting disadvantageous rate performance. Typically, a material modification process of Li4 Ti5 O12 will be proposed to overcome such an issue. However, the previous reports have made few investigations and achievements to analyze the subsequent processes after a material modification process. In this review, we attempt to put considerable interest in complete device design and assembly process with its material structure design (or modification process), electrode structure design and device construction design. Moreover, we have systematically concluded a series of representative design schemes, which can be divided into three major categories involving: (1) nanostructures design, conductive material coating process and doping process on material level; (2) self-supporting or flexible electrode structure design on electrode level; (3) rational assembling of lithium ion full cell or lithium ion capacitor on device level. We believe that these rational designs can give an advanced performance for Li4 Ti5 O12 -based energy storage device and deliver a deep inspiration. PMID- 29024398 TI - High-Throughput Feasible Screening Tool for Determining Enzyme Stabilities against Organic Solvents Directly from Crude Extracts. AB - Biotransformations in organic chemistry frequently suffer from limitations caused by low water-solubility of substrates and product inhibition. Both, usually are addressed by the addition of organic cosolvents, which often accompanies at the expense of enzyme stability. A common method for measuring enzyme stability is to determine the melting temperature (Tm ) of the enzyme. However, current methods are limited to the application of purified enzymes. Herein, for the first time, an easy and fast (<1 h) high-throughput feasible method to determine enzyme stabilities directly from crude extracts is reported. In pure buffer, the Tm value measured in the crude extract was identical to that obtained for the purified enzyme. Through the addition of different organic compounds, the Tm values in the crude extract differed by up to 2.4 degrees C from that of the purified enzymes due to the presence of the host-cell proteins. Thus, the measurement of enzyme stabilities in crude extracts appears to represent conditions in whole-cell catalysts even better. The applied nano differential scanning fluorimetry technology is further proven to be suitable for whole-cell catalysts with two overexpressed enzymes; thus representing a tool for the rapid screening of natural and mutant enzyme libraries in terms of process stability for challenging biotransformations. PMID- 29024399 TI - High magnesium prevents matrix vesicle-mediated mineralization in human bone marrow-derived mesenchymal stem cells via mitochondrial pathway and autophagy. AB - Magnesium, as a physiological calcium antagonist, plays a vital role in the bone metabolism and the balance between magnesium and calcium is crucial in bone physiology. We recently demonstrated that matrix mineralization in human bone marrow-derived mesenchymal stem cells (hBMSCs) can be suppressed by high Mg2+ . However, a complete understanding of the mechanisms involved still remains to be elucidated. As mitochondrial calcium phosphate granules depletion manifests concurrently with the appearance of matrix vesicles (MVs) and autophagy are associated with matrix mineralization, we studied the effect of high extracellular Mg2+ on these pathways. Our results first demonstrated that high Mg2+ has a significant inhibitory effect on the generalization of extracellular mineral aggregates and the expression of collagen 1 along which the mineral crystals grow. Transmission electron microscope results showed that less amount of MVs were observed inside hBMSCs treated with high Mg2+ and high Mg2+ inhibited the release of MVs. In addition, high Mg2+ significantly suppressed mitochondrial Ca2+ accumulation. Autophagy is promoted as a response to osteogenesis of hBMSCs. High Mg2+ inhibited the level of autophagy upon osteogenesis and autophagy inhibitor 3-MA significantly suppressed mineralization. Exogenous ATP can reverse the inhibitory effect of high Mg2+ by increasing the level of autophagy. Taken together, our results indicate that high Mg2+ may modulate MVs-mediated mineralization via suppressing mitochondrial Ca2+ intensity and regulates autophagy of hBMSCs upon osteogenesis, resulting in decreased extracellular mineralized matrix deposition. Our results contribute to the understanding of the role of magnesium homeostasis in osteoporosis and the design of magnesium alloys. PMID- 29024400 TI - Biocatalytic Routes to Enantiomerically Enriched Dibenz[c,e]azepines. AB - Biocatalytic retrosynthetic analysis of dibenz[c,e]azepines has highlighted the use of imine reductase (IRED) and omega-transaminase (omega-TA) biocatalysts to establish the key stereocentres of these molecules. Several enantiocomplementary IREDs were identified for the synthesis of (R)- and (S)-5-methyl-6,7-dihydro-5H dibenz[c,e]azepine with excellent enantioselectivity, by reduction of the parent imines. Crystallographic evidence suggests that IREDs may be able to bind one conformer of the imine substrate such that, upon reduction, the major product conformer is generated directly. omega-TA biocatalysts were also successfully employed for the production of enantiopure 1-(2-bromophenyl)ethan-1-amine, thus enabling an orthogonal route for the installation of chirality into dibenz[c,e]azepine framework. PMID- 29024401 TI - Constituents of the Argentine Liverwort Plagiochila diversifolia and Their Insecticidal Activities. AB - Three new compounds, a bicyclogermacrene (1) and two 2,3-secoaromadendrane esters (2 and 3), together with (13S)-13-hydroxylabda-8,14-diene (4), fusicogigantone B (5), 3alpha,14-diacetoxy-2-hydoxybicyclogermacrene (6), fusicogigantone A (7), neofuranoplagiochilal (8), plagiochiline B (9), furanoplagiochilal (10), trans nerolidol, spathulenol, alpha-tocopherol, and (+)-globulol were isolated from an Argentine collection of Plagiochila diversifolia. Their structures were elucidated by extensive mono and bidimensional NMR studies. Compounds 4, 5, and 6, incorporated to the larval diet at 100 MUg per g of diet, reduced the larval growth of Spodoptera frugiperda (Lepidoptera: Noctuidae) by 70 +/- 25, 57 +/- 23, and 33 +/- 16%, respectively. Compounds 4 and 5 produced 70% and 60% larval mortality at early instars. The latter also showed antifeedant properties in the Choice Test, with a feeding ratio of 0.54 +/- 0.16. PMID- 29024402 TI - Blueberry Metabolites Attenuate Lipotoxicity-Induced Endothelial Dysfunction. AB - SCOPE: Lipotoxicity-induced endothelial dysfunction is an important vascular complication associated with diabetes. Clinical studies support the vascular benefits of blueberry anthocyanins, but the underlying mechanism is unclear. The hypothesis that metabolites of blueberry anthocyanins attenuate lipotoxicity induced endothelial dysfunction was tested. METHODS AND RESULTS: Human aortic endothelial cells (HAECs) were treated for 6 h with either: (i) the parent anthocyanins (malvidin-3-glucoside and cyanidin-3-glucoside); or (ii) the blueberry metabolites (hydroxyhippuric acid, hippuric acid, benzoic acid-4 sulfate, isovanillic acid-3-sulfate, and vanillic acid-4-sulfate), at concentrations known to circulate in humans following blueberry consumption. For the last 5 h HAECs were treated with palmitate or vehicle. HAECs treated with palmitate displayed elevated reactive oxygen species generation, increased mRNA expression of NOX4, chemokines, adhesion molecules, and IkappaBalpha, exaggerated monocyte binding, and suppressed nitric oxide production. Of note, the damaging effects of palmitate were ameliorated in HAECs treated with blueberry metabolites but not parent anthocyanins. Further, important translational relevance of these results was provided by our observation that palmitate-induced endothelial dysfunction was lessened in arterial segments that incubated concurrently with blueberry metabolites. CONCLUSION: The presented findings indicate that the vascular benefits of blueberry anthocyanins are mediated by their metabolites. Blueberries might complement existing therapies to lessen vascular complications. PMID- 29024403 TI - Polymicrobial Bacteremia Involving Comamonas testosteroni in a Patient on Dialysis With Acute Appendicitis. PMID- 29024404 TI - Removal of Sacral Nerve Stimulation Devices for Magnetic Resonance Imaging: What Happens Next? AB - INTRODUCTION: Sacral neuromodulation (SNM) devices (Medtronic, Minneapolis, MN, USA) are not approved to undergo magnetic resonance imaging (MRI) of sites other than the head. When MRIs are required, devices are often removed prior to imaging. We reviewed the prevalence of device removal for MRI at a large academic institution and the subsequent clinical course of these patients. METHODS: A retrospective review of all SNM explants from 2009-2015 was performed. Cases explanted for MRI were analyzed to collect demographics, clinical characteristics, and postremoval management. Descriptive statistics were calculated. RESULTS: Ninety patients underwent SNM device removal, with 21 (23%) occurring for MRI. At explant, 20 patients (95%) were female and median age was 66 years. Suboptimal symptom control from SNM was noted in seven (33%) of these patients preoperatively. Of those explanted, six (29%) required MRI for neurologic and 10 (48%) for orthopedic concerns. The remaining MRI indications included abdominal masses (10%), genitourinary disease (5%), surveillance for prior malignancy (5%), and cardiac disease (5%). Only 16 (76%) patients explanted ultimately underwent MRI. MRI results impacted clinical management in 9/16 (56%) of the imaged patients. Only two (10%) of explanted patients underwent device replacement. CONCLUSIONS: In patients receiving SNM therapy, device removal for MRI is most commonly due to orthopedic and neurologic pathologies. About half of the MRIs performed impacted non-GU clinical management. It is of paramount importance to confirm the necessity of MRI before removing a functional SNM device. Since SNM replacement was rare in this cohort, research is needed on the safety of various MRI types with SNM devices in vivo. PMID- 29024405 TI - Current status of liver transplantation for cholangiocarcinoma. AB - Cholangiocarcinoma (CCA) is the second most common liver cancer, and it is associated with a poor prognosis. CCA can be divided into intrahepatic, hilar, and distal. Despite the subtype, the median survival is 12-24 months without treatment. Liver transplantation (LT) is recognized worldwide as a curative option for hepatocellular carcinoma. On the other hand, the initial results for LT for CCA were very poor mainly due to a lack of adequate patient selection. In the last 2 decades, improvements have been made in the management of unresectable hilar CCA, and the results of LT after neoadjuvant chemoradiation have been shown to be promising. This has prompted a consideration of hilar CCA as an indication for LT in some centers. Furthermore, some recent research has shown promising results after LT for patients with early stages of intrahepatic CCA. A better understanding of the best tools to prognosticate the outcomes of LT for CCA is still needed. Here, we aimed to review the role of LT for the treatment of patients with perihilar and intrahepatic CCA. Also, we will discuss the most recent advances in the field and the future direction of the management of this disease in an era of transplantation oncology. Liver Transplantation 24 294-303 2018 AASLD. PMID- 29024406 TI - Sodium Iodide (NaI)-Catalyzed Cross-Coupling for C-S Bond Formation via Oxidative Dehydrogenation: Cheap, Direct Access to Unsymmetrical Aryl Sulfides. AB - A simple and practical NaI-catalyzed direct C-H sulfenylation of arenes has been developed under air. In this reaction, aryl sulfides were obtained in moderate to excellent yields with high regioselectivity from readily available aromatic compounds and aryl/alkyl thiols, even on gram scale. To demonstrate the practicability of this reaction, two bioactive compound skeletons were synthesized in good yields. This method can also be used to late-stage modification of curcumin. PMID- 29024407 TI - Ghrelin deletion protects against age-associated hepatic steatosis by downregulating the C/EBPalpha-p300/DGAT1 pathway. AB - Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease worldwide. NAFLD usually begins as low-grade hepatic steatosis which further progresses in an age-dependent manner to nonalcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and hepatocellular carcinoma in some patients. Ghrelin is a hormone known to promote adiposity in rodents and humans, but its potential role in hepatic steatosis is unknown. We hypothesized that genetic ghrelin deletion will protect against the development of age-related hepatic steatosis. To examine this hypothesis, we utilized ghrelin knockout (KO) mice. Although no different in young animals (3 months old), we found that at 20 months of age, ghrelin KO mice have significantly reduced hepatic steatosis compared to aged-matched wild-type (WT) mice. Examination of molecular pathways by which deletion of ghrelin reduces steatosis showed that the increase in expression of diacylglycerol O acyltransferase-1 (DGAT1), one of the key enzymes of triglyceride (TG) synthesis, seen with age in WT mice, is not present in KO mice. This was due to the lack of activation of CCAAT/enhancer binding protein-alpha (C/EBPalpha) protein and subsequent reduction of C/EBPalpha-p300 complexes. These complexes were abundant in livers of old WT mice and were bound to and activated the DGAT1 promoter. However, the C/EBPalpha-p300 complexes were not detected on the DGAT1 promoter in livers of old KO mice resulting in lower levels of the enzyme. In conclusion, these studies demonstrate the mechanism by which ghrelin deletion prevents age associated hepatic steatosis and suggest that targeting this pathway may offer therapeutic benefit for NAFLD. PMID- 29024408 TI - Effects of glucagon-like peptide-1 receptor agonists on cardiovascular risk factors: A narrative review of head-to-head comparisons. AB - Cardiovascular (CV) disease is the leading cause of death and morbidity in patients with type 2 diabetes. Five CV risk factors (blood pressure, resting heart rate, body weight, cholesterol levels and blood glucose) are monitored routinely as safety and efficacy endpoints in randomized clinical trials for diabetes therapies. To determine if different glucagon-like peptide-1 receptor agonists (GLP-1RAs) had varying effects on these CV risk factors, we reviewed 16 head-to-head trials directly comparing GLP-1RAs that included at least one of the five factors. Few trials reported statistical differences between GLP-1RAs in terms of systolic blood pressure (SBP), body weight and total cholesterol. Liraglutide increased heart rate vs its comparators in three separate trials. All GLP-1RAs reduced glycated haemoglobin (HbA1c), but exenatide twice daily and lixisenatide had statistically smaller effects compared with other GLP-1RAs. These descriptive data indicate that individual GLP-1RAs affect CV risk factors differently, potentially because of their individual pharmacokinetics and/or size. Short-acting GLP-1RAs appeared to result in smaller changes in SBP and total cholesterol compared with continuous-acting treatments, while large GLP 1RAs had a reduced effect on body weight compared with small GLP-1RAs. For glycaemic control, short-acting GLP-1RAs had a greater impact on postprandial glucose levels vs continuous-acting GLP-1RAs, but for fasting plasma glucose levels and HbA1c, continuous-acting treatments had the greater effect. No differentiating trends were obvious in heart rate data. These diverse actions of GLP-1RAs on CV risk factors should aid individualized patient treatment. PMID- 29024410 TI - Eight weeks of omeprazole 20 mg significantly reduces both laryngopharyngeal reflux and comorbid chronic rhinosinusitis signs and symptoms: Randomised, double blind, placebo-controlled trial. AB - OBJECTIVES: Gastroesophageal reflux recommended treatment (dose and duration) with proton-pump inhibitor (PPI) compared to placebo significantly reduces the signs and symptoms of laryngopharyngeal reflux (LPR) and comorbid chronic rhinosinusitis (CRS). DESIGN: Double-blind randomised placebo-controlled trial. SETTING: Eight weeks of treatment with omeprazole 20 mg once daily (OD). PARTICIPANTS: Sixty patients (28 women, aged 19-87 years) with diagnosed LPR and comorbid CRS. MAIN OUTCOME MEASURES: Significant reduction in signs and symptoms (reflux symptom index (RSI) score as subjective, and reflux finding score (RFS) as objective measure) of LPR after 8 weeks of treatment with omeprazole 20 mg OD when compared to placebo. Secondary objectives were significant reduction in signs and symptoms of comorbid CRS after 8 weeks of treatment with omeprazole 20 mg OD when compared to placebo and the association of the severity of signs and symptoms of LPR with the ones of CRS. RESULTS: RSI and RFS decreased significantly more in the active treatment group after 8 weeks compared to placebo (P < .001 for both). CRS and endoscopy scoring decreased both significantly more in the active group after 8 weeks compared to placebo (P < .001 for both). CRS scoring significantly correlated with RSI (R = 0.312, P = .015) but not with RFS (R = 0.199, P = .127). CONCLUSIONS: The results of our trial suggest that omeprazole 20 mg OD for 8 weeks was effective in reducing signs and symptoms of both LPR and CRS, although in most patients still present at the end of the trial. PMID- 29024409 TI - The natural agent rhein induces beta-catenin degradation and tumour growth arrest. AB - The natural agent rhein is an ananthraquinone derivative of rhubarb, which has anticancer effects. To determine the mechanisms underlying the anticancer effects of rhein, we detected the effect of rhein on several oncoproteins. Here, we show that rhein induces beta-catenin degradation in both hepatoma cell HepG2 and cervical cancer cell Hela. Treatment of HepG2 and Hela cells with rhein shortens the half-life of beta-catenin. The proteasome inhibitor MG132 blunts the downregulation of beta-catenin by rhein. The induction of beta-catenin degradation by rhein is dependent on GSK3 but independent of Akt. Treatment of HepG2 and Hela cells with GSK3 inhibitor or GSK3beta knockdown abrogates the effect of rhein on beta-catenin. GSK3beta knockdown compromises the inhibition of HepG2 and Hela cell growth by rhein. Furthermore, rhein dose not downregulate beta-catenin mutant that is deficient of phosphorylation at multiple residues including Ser33, Ser37, Thr41 and Ser45. Moreover, rhein induces cell cycle arrest at S phase in both HepG2 and Hela cells. Intraperitoneal administration of rhein suppresses tumour cells proliferation and tumour growth in HepG2 xenografts model. Finally, the levels of beta-catenin are reduced in rhein-treated tumours. These data demonstrate that rhein can induce beta-catenin degradation and inhibit tumour growth. PMID- 29024411 TI - Double Catalytic Kinetic Resolution (DoCKR) of Acyclic anti-1,3-Diols: The Additive Horeau Amplification. AB - The concept of a synergistic double catalytic kinetic resolution (DoCKR) as described in this article was successfully applied to racemic acyclic anti-1,3 diols, a common motif in natural products. This process takes advantage of an additive Horeau amplification involving two successive enantioselective organocatalytic acylation reactions, and leads to diesters and recovered diols with high enantiopurities. It was first developed with C2 -symmetrical diols and then further extended to non-C2 -symmetrical anti diols to prepare useful chiral building blocks. The protocol is highly practical as it only requires 1 mol % of a commercially available organocatalyst and leads to easily separable products. This procedure was applied to the shortest reported total synthesis of (+) cryptocaryalactone, a natural product with anti-germinative activity. PMID- 29024412 TI - Risk of posttransplant hepatocellular carcinoma recurrence is greater in recipients with higher platelet counts in living donor liver transplantation. AB - Platelets interact with tumor cells and promote metastasis. The importance of platelets in posttransplant hepatocellular carcinoma (HCC) recurrence is unclear. Thus, we aimed to evaluate the association between preoperative platelet count (PLT) and HCC recurrence after living donor liver transplantation. Of 359 recipients of livers from living donors for HCC, 209 of 240 patients who had preoperative PLT <=75 * 109 /L were matched with 97 of 119 patients who had preoperative PLT >75 * 109 /L using propensity score matching, with an unfixed matching ratio based on factors such as tumor biology. The cutoff value of 75 * 109 /L was set based on optimum stratification analysis. Survival analysis was performed with death as a competing risk event. The primary outcome was overall HCC recurrence. The median follow-up time was 59 months. Before matching, recurrence probability at 1, 2, and 5 years after transplantation was 4.7%, 9.2%, and 11.3% for the low platelet group and 14.5%, 23.0%, and 30.5% for the high platelet group. Recurrence risk was significantly greater in the high platelet group in both univariate (hazard ratio [HR] = 3.09; 95% confidence interval [CI], 1.86-5.14; P < 0.001) and multivariate analyses (HR = 2.10; 95% CI, 1.23-3.60; P = 0.007). In the matched analysis, recurrence risk was also greater in the high platelet group in both univariate (HR = 2.33; 95% CI, 1.36-4.01; P = 0.002) and multivariate analyses (HR = 1.90; 95% CI, 1.02-3.54; P = 0.04). Preoperative PLT had no interaction with the Milan criteria, alpha-fetoprotein level, Edmonson grade, microvascular invasion, or intrahepatic metastasis. Incorporation of preoperative PLT into the Milan criteria significantly improved predictive power. Inflammation-based scores including neutrophil-to-lymphocyte ratio, platelet-to lymphocyte ratio, and the inflammation-based index did not show superiority to preoperative PLT in predicting HCC recurrence. In conclusion, preoperative PLT appears to be an important host factor affecting HCC recurrence after living donor liver transplantation. Liver Transplantation 24 44-55 2018 AASLD. PMID- 29024413 TI - Deep tissue loads in the seated buttocks on an off-loading wheelchair cushion versus air-cell-based and foam cushions: finite element studies. AB - For wheelchair users, a common injury is a sitting-acquired pressure ulcer (PU) which typically onsets near the interface between the ischial tuberosity (IT) and the overlying soft tissues. The risk of developing PUs can be reduced considerably if an adequate cushion is placed on the wheelchair in order to protect tissues from PUs by minimising interface mechanical loads between the body and cushion and also, exposure to internal soft tissue loads. In this work, we studied the biomechanical performances of an off-loading (OL) cushion with limited adjustability, in comparison to a standard foam cushion and a fully adjustable air-cell-based (ACB) cushion. These different cushion design approaches were methodologically and quantitatively analysed and compared here using a finite element (FE) modelling framework. We determined the internal mechanical deformations, strains and stresses in soft tissues of the seated buttocks during symmetric sitting, in a specific anatomy of a person with a spinal cord injury that was acquired during sitting in an open, magnetic resonance imaging configuration. Our results have shown that strains and stresses in muscle, fat and skin tissues are orders of magnitude lower for the ACB cushion with respect to the standard foam and OL cushions. The OL cushion design has taken the approach of protecting at-risk sites of the buttocks by transferring local internal tissue loads away from the ITs and towards the greater trochanters, at the price of increasing exposure to internal tissue loads at sites other than the ITs. The ACB cushion design, however, has taken a different approach, that is, immersion and envelopment of the entire buttocks structure, which is useful for minimising the exposure to internal tissue loads throughout the whole buttocks. Quantifying performances of wheelchair cushions using FE modelling provides insights into deep tissue loads, which is essential for informed decision-making in developing sitting solutions for individuals at risk, as well as for patient groups. PMID- 29024414 TI - Nucleosomes Exhibit Non-uniform Unwrapping Along Native Chromatin Fibers with Increasing Salt Concentration as Revealed by Direct Imaging in a Microfluidic Channel. AB - Identifying the distribution of the higher-order structure of chromatin - a complex of DNA and proteins - along genomic DNA can clarify the mechanisms underlying cell development and differentiation, including gene regulation. However, genome-wide analysis of this distribution at the single-cell level remains an outstanding challenge. Here, the authors report a new method for investigating changes in and the distribution of higher-order structures along native chromatin fibers - ranging over 100 um in length - relative to changes in salt concentration. To this end, the authors developed a microfluidic platform that enabled us to isolate chromatin fibers from single cells and tether them to microstructures in a microfluidic channel without fragmentation. The fibers were then exposed to varying concentrations of salt solution under microscopic observation. As a result, the fibers are non-uniformly elongated by up to 2-3 times along the fiber axis as salt concentration was increased from 0 to 3 M, suggesting that chromosome structural stability is non-uniformly distributed along chromatin fibers in their native form. Thus, our system enables direct microscopic analysis of individual chromatin fibers from single cells, which can provide insights into epigenetic mechanisms of cell development, cell differentiation, and carcinogenesis. PMID- 29024415 TI - EroS Enzyme from Aliivibrio fischeri Plays Cupid to Choanoflagellates. AB - Cupid's bow: A collaborative effort by the King and Clardy laboratories has serendipitously identified a bacterial chondroitinase that triggers the choanoflagellate S. rosetta to swarm and sexually reproduce. This unprecedented interaction between a bacterium and a choanoflagellate could give insights into a key evolutionary leap-sexual reproduction. PMID- 29024416 TI - Review article: A systematic review of emergency department incident classification frameworks. AB - As in any part of the hospital system, safety incidents can occur in the ED. These incidents arguably have a distinct character, as the ED involves unscheduled flows of urgent patients who require disparate services. To aid understanding of safety issues and support risk management of the ED, a comparison of published ED specific incident classification frameworks was performed. A review of emergency medicine, health management and general medical publications, using Ovid SP to interrogate Medline (1976-2016) was undertaken to identify any type of taxonomy or classification-like framework for ED related incidents. These frameworks were then analysed and compared. The review identified 17 publications containing an incident classification framework. Comparison of factors and themes making up the classification constituent elements revealed some commonality, but no overall consistency, nor evolution towards an ideal framework. Inconsistency arises from differences in the evidential basis and design methodology of classifications, with design itself being an inherently subjective process. It was not possible to identify an 'ideal' incident classification framework for ED risk management, and there is significant variation in the selection of categories used by frameworks. The variation in classification could risk an unbalanced emphasis in findings through application of a particular framework. Design of an ED specific, ideal incident classification framework should be informed by a much wider range of theories of how organisations and systems work, in addition to clinical and human factors. PMID- 29024417 TI - Human CD8+ EMRA T cells display a senescence-associated secretory phenotype regulated by p38 MAPK. AB - Cellular senescence is accompanied by a senescence-associated secretory phenotype (SASP). We show here that primary human senescent CD8+ T cells also display a SASP comprising chemokines, cytokines and extracellular matrix remodelling proteases that are unique to this subset and contribute to age-associated inflammation. We found the CD8+ CD45RA+ CD27- EMRA subset to be the most heterogeneous, with a population aligning with the naive T cells and another with a closer association to the effector memory subset. However, despite the differing processes that give rise to these senescent CD8+ T cells once generated, they both adopt a unique secretory profile with no commonality to any other subset, aligning more closely with senescence than quiescence. Furthermore, we also show that the SASP observed in senescent CD8+ T cells is governed by p38 MAPK signalling. PMID- 29024418 TI - Repair of a critical-size segmental rabbit femur defect using bioglass-beta-TCP monoblock, a vascularized periosteal flap and BMP-2. AB - Various synthetic bone substitutes are not suitable for reconstructing critical size bone defects. This study tested whether a bioglass-beta-tricalcium phosphate (beta-TCP) monoblock is effective for repairing critical-size segmental bone defects if combined with a vascularized periosteal flap and bone morphogenetic protein (BMP)-2. A femoral osteotomy with a gap size of 20 mm was created and stabilized using a plate in 40 rabbits.The defect was left untreated (group A) or repaired using a monoblock (group B), a monoblock with a vascularized periosteal flap (group C), or a monoblock with a vascularized periosteal flap and BMP-2 (group D). Bone regeneration, vascularization and monoblock degradation were analyzed after four and eight weeks using x-ray, hematoxylin-eosin, CD34 immunohistochemical and Masson's trichrome staining observation and histometric evaluation. The radiographic grading score showed a time-dependent increase from weeks 4 to 8. At 8-week postoperative, the total new regenerated bone in groups C and D was 20.0 +/- 0.3 and 55.5 +/- 8.0 mm2 , respectively, which was significantly greater than in group B. Conversely, group D showed less residual monoblock than did group C. An increase in microvessel density was also observed in groups C and D compared with group B at 4 and 8 weeks postoperative, respectively. This study suggests that bioglass-beta-TCP monoblock alone exhibits poor potential to repair a 20-mm femoral defect. However, supplementation with a vascularized periosteal flap and BMP-2 led to effective vascularization and reliable bone regeneration throughout the monoblock, with concordant material degradation in a timely manner. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2148-2156, 2018. PMID- 29024419 TI - A multicentre randomised controlled trial evaluating the efficacy of dehydrated human amnion/chorion membrane (EpiFix(r) ) allograft for the treatment of venous leg ulcers. AB - A randomised, controlled, multicentre clinical trial was conducted to evaluate the efficacy of dehydrated human amnion/chorion membrane (EpiFix) allograft as an adjunct to multilayer compression therapy for the treatment of non-healing full thickness venous leg ulcers. We randomly assigned 109 subjects to receive EpiFix and multilayer compression (n = 52) or dressings and multilayer compression therapy alone (n = 57). Patients were recruited from 15 centres around the USA and were followed up for 16 weeks. The primary end point of the study was defined as time to complete ulcer healing. Participants receiving weekly application of EpiFix and compression were significantly more likely to experience complete wound healing than those receiving standard wound care and compression (60% versus 35% at 12 weeks, P = 0.0128, and 71% versus 44% at 16 weeks, P = 0.0065). A Kaplan-Meier analysis was performed to compare the time-to-healing performance with or without EpiFix, showing a significantly improved time to healing using the allograft (log-rank P = 0.0110). Cox regression analysis showed that subjects treated with EpiFix had a significantly higher probability of complete healing within 12 weeks (HR: 2.26, 95% confidence interval 1.25-4.10, P = 0.01) versus without EpiFix. These results confirm the advantage of EpiFix allograft as an adjunct to multilayer compression therapy for the treatment of non-healing, full thickness venous leg ulcers. PMID- 29024420 TI - Skin flap vaginal augmentation helps prevent and cure post obstetric fistula repair urine leakage: a critical anatomical analysis. AB - : Our aim was to describe a new surgical method for prophylaxis/cure of post obstetric fistula repair leakage based on restoring vaginal elasticity with Singapore skin flap. The rationale for this operation was based on the integral theory: scarring removes elasticity required for independent function of oppositely acting urethral closure forces so they become 'tethered, forcibly opening the urethra when give the signal to close'. Skin graft restores elasticity and closure. Used prophylactically with Goh type 4 fistula (n = 45), 46% were dry against an expected 19%. In patients with successful fistula closure, still with severe leakage (n = 24), 71% were dry against an expected 26%. TWEETABLE ABSTRACT: Singapore skin flap restores elasticity and prevents and treats incontinence in patients with successful obstetric fistula repair. PMID- 29024421 TI - Generalized estimating equation model to compare drug effects on synovitis of the dominant wrist in severe rheumatoid arthritis between tocilizumab versus adalimumab versus abatacept using high-resolution ultrasound. AB - PURPOSE: The use of biological agents has revolutionized the treatment of rheumatoid arthritis (RA). However, details of serial synovial changes in imaging evaluation are unclear. Using power Doppler (PD) ultrasound, this study aimed to evaluate the comparative efficacy of biologicals for patients with refractory RA, with the hope that these findings could aid in clinical decision making. METHODS: Patients with RA who received abatacept, adalimumab or tocilizumab therapy were enrolled. All underwent gray scale synovial hypertrophy and PD assessments of the dominant wrist (dorsal aspect) at baseline and at 1, 3 and 6 months after therapy. A generalized estimating equation model was used to compare efficacy among the three drugs. RESULTS: Of the 103 patients enrolled, 32 received adalimumab, 38 abatacept and 33 tocilizumab. There were no significant differences in age or sex among the three groups. All had a treatment response according to gray scale (P = 0.000) and PD (P = 0.001) synovitis scores. The tocilizumab group had a significantly lower synovial hypertrophy score at 6 months (P = 0.006), and the adalimumab group also had a lower score although without statistical significance (P = 0.043). The adalimumab group had a lower PD score than the other two groups (P < 0.05). CONCLUSION: In a 6-month head-to-head comparison of patients with RA, tocilizumab and adalimumab had a greater effect on reducing synovial hypertrophy, while adalimumab had a greater effect in controlling inflammation in PD. PMID- 29024422 TI - Vascularization in Ornamented Osteoderms: Physiological Implications in Ectothermy and Amphibious Lifestyle in the Crocodylomorphs? AB - Vascularization in the core of crocodylian osteoderms, and in their superficial pits has been hypothesized to be a key feature involved in physiological thermoregulation and/or acidosis buffering during anoxia (apnea). However, up to now, there have been no quantitative data showing that the inner, or superficial, blood supply of the osteoderms is greater than that occurring in neighboring dermal tissues. We provide such data: our results clearly indicate that the vascular networks in both the osteoderms and the pits forming their superficial ornamentation are denser than in the overlying dermis. These results support previous physiological assumptions and indicate that vascularization in pseudosuchian (crocodylians and close relatives) ornamented osteoderms could be part of a broad eco-physiological adaptation towards ectothermy and aquatic ambush predation acquired by the crocodylomorphs during their post-Triassic evolution. Moreover, regressions demonstrate that the number of enclosed vessels is correlated with the sectional area of the cavities housing them (superficial pits and inner cavities). These regressions can be used to infer the degree of vascularization on dry and fossilized osteoderms and thus document the evolution of the putative function of the osteoderms in the Pseudosuchia. Anat Rec, 2017. (c) 2017 Wiley Periodicals, Inc. Anat Rec, 301:175-183, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024423 TI - Reply. PMID- 29024424 TI - Developing asymmetry in a screening mammogram: A cautionary tale of a missed cancer. AB - The developing asymmetry has a 12-15% risk of malignancy but poses challenges of detection and interpretation due to the lack of typical features of cancer and the frequent absence of an ultrasound correlate. Failure to biopsy these lesions may lead to delayed diagnosis of breast cancer. PMID- 29024425 TI - Multicentre evaluation of magnetic resonance imaging supported transperineal prostate biopsy in biopsy-naive men with suspicion of prostate cancer. AB - OBJECTIVES: To analyse the detection rates of primary magnetic resonance imaging (MRI)-fusion transperineal prostate biopsy using combined targeted and systematic core distribution in three tertiary referral centres. PATIENTS AND METHODS: In this multicentre, prospective outcome study, 807 consecutive biopsy-naive patients underwent MRI-guided transperineal prostate biopsy, as the first diagnostic intervention, between 10/2012 and 05/2016. MRI was reported following the Prostate Imaging-Reporting and Data System (PI-RADS) criteria. In all, 236 patients had 18-24 systematic transperineal biopsies only, and 571 patients underwent additional targeted biopsies either by MRI-fusion or cognitive targeting if PI-RADS >=3 lesions were present. Detection rates for any and Gleason score 7-10 cancer in targeted and overall biopsy were calculated and predictive values were calculated for different PI-RADS and PSA density (PSAD) groups. RESULTS: Cancer was detected in 68% of the patients (546/807) and Gleason score 7-10 cancer in 49% (392/807). The negative predictive value of 236 PI-RADS 1-2 MRI in combination with PSAD of <0.1 ng/mL/mL for Gleason score 7-10 was 0.91 (95% confidence interval +/- 0.07, 8% of study population). In 418 patients with PI-RADS 4-5 lesions using targeted plus systematic biopsies, the cancer detection rate of Gleason score 7-10 was significantly higher at 71% vs 59% and 61% with either approach alone (P < 0.001). For 153 PI-RADS 3 lesions, the detection rate was 31% with no significant difference to systematic biopsies with 27% (P > 0.05). Limitations include variability of multiparametric MRI (mpMRI) reading and Gleason grading. CONCLUSION: MRI-based transperineal biopsy performed at high volume tertiary care centres with a significant experience of prostate mpMRI and image-guided targeted biopsies yielded high detection rates of Gleason score 7-10 cancer. Prostate biopsies may not be needed for men with low PSAD and an unsuspicious MRI. In patients with high probability lesions, combined targeted and systematic biopsies are recommended. PMID- 29024426 TI - C-reactive protein gene polymorphisms (rs1205) in Asian Indian patients with Takayasu arteritis: Associations and phenotype correlations. AB - BACKGROUND/PURPOSE: Normal C-reactive protein (CRP) in active Takayasu arteritis (TA) is a dilemma. We attempted to validate our pilot study finding of rs1205 in CRP gene being protective against TA. METHODS: Genomic DNA of 104 patients and 185 sex-matched healthy controls were genotyped for rs1205 by Taqman assay. Clinical details, demography, angiographic and activity scores (Indian Takayasu arteritis score 2010) were recorded prospectively at baseline and during follow up visits for 12 months. Minor allele frequency (MAF) and genotype distribution between patients and controls as well as patient subgroups were compared using chi2 test with Bonferroni correction (pc ) and logistic regression was performed to determine independent associations. RESULTS: The majority of patients (n = 84) and controls (n = 166) were females. MAF of T allele of rs1205 was less frequent in patients (27%) as compared to controls (37.6%), P = 0.013, pc = 0.026 with an odds ratio of 0.632 irrespective of gender. Frequency of CC genotype was higher in cases (53.8%) than controls (37.3%), P = 0.006, pc = 0.018. A dominant model of genotype-phenotype association revealed CC to be associated with more frequent coronary arterial and ascending aorta involvement than the other genotypes clubbed together (P = 0.01 and P = 0.014, respectively). Blunted CRP response seems to be less frequent in patients with CC genotype (P = 0.064). CONCLUSION: T allele of rs1205 in CRP gene was less frequent in TA. CC genotype was associated with involvement of coronary arteries and ascending aorta. CC genotype was less commonly associated with blunted CRP response (CT + TT > CC). PMID- 29024427 TI - Combined liver-kidney perfusion enhances protective effects of normothermic perfusion on liver grafts from donation after cardiac death. AB - It has been shown that combined liver-kidney normothermic machine perfusion (NMP) is able to better maintain the circuit's biochemical milieu. Nevertheless, whether the combined perfusion is superior to liver perfusion alone in protecting livers from donation after circulatory death (DCD) is unclear. We aimed to test the hypothesis and explored the mechanisms. Livers from 15 DCD pig donors were subjected to either static cold storage (group A), liver-alone NMP (group B), or combined liver-kidney NMP (group C). Livers were preserved for 6 hours and reperfused ex vivo for 2 hours to simulate transplantation or were transplanted in situ. During perfusion, group C showed an improved acid-base and biochemical environment in the circuit over group B. After reperfusion, the architecture of the liver grafts was best preserved in group C, followed by group B, then group A, as shown by the histology and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling staining of both hepatocytes and biliary epithelium. Ki-67 staining showed substantial hepatocyte proliferation and biliary epithelial regeneration after perfusion in group B and group C. Group C produced more bile in the reperfusion phase than those in group A and group B, with more physiological bile composition and less severe biliary epithelium injury. Von Willebrand factor-positive endothelial cells and E-selectin expression decreased in both group B and group C. Combined liver-kidney NMP not only produced more adenosine triphosphate, protected the nitric oxide signaling pathway, but also diminished oxidative stress (high mobility group box-1 protein and 8-hydroxy-2-deoxy guanosine levels) and inflammatory cytokine (IL6 and IL8) release when compared with liver-alone NMP and CS. In addition, the 7-day survival rate of liver transplant recipients was higher in group C than that in groups A and B. In conclusion, combined liver-kidney NMP can better protect DCD livers from warm ischemia and reperfusion injury probably by maintaining the stability of the internal environment and by abolishing oxidative stress injury. Liver Transplantation 24 67-79 2018 AASLD. PMID- 29024428 TI - Heat Shock Protein 60 in Obesity: Effect of Bariatric Surgery and its Relation to Inflammation and Cardiovascular Risk. AB - OBJECTIVE: Heat shock protein 60 (Hsp60) is an adipokine, and its serum concentrations are higher in patients with obesity compared to lean patients. This study aimed to analyze the effect of bariatric surgery on circulating concentrations of Hsp60 in morbid obesity and their correlation with inflammation and metabolic and cardiovascular risk. METHODS: Fifty-three females with morbid obesity undergoing bariatric surgery were enrolled. Serum parameters and anthropometric measures were obtained at baseline and 3 to 12 months post surgery. RESULTS: During the 12-month observation period, Hsp60 decreased significantly from 31.6 +/- 4.7 ng/mL at baseline to 22.3 +/- 3.0 ng/mL (3 months), 26.5 +/- 5.5 (6 months), and 21.1 +/- 3.3 ng/mL (12 months). Preoperatively, Hsp60 concentrations correlated positively with total cholesterol, low-density lipoprotein cholesterol, and apolipoprotein B (ApoB) and negatively with adiponectin. At the end of the observation period, serum Hsp60 positively correlated with triglycerides, ApoB, HbA1c , and C-reactive protein (CRP). Patients in the highest quartile of serum Hsp60 were characterized by significantly elevated CRP and interleukin 6 independently of BMI, glycemia, and insulinemia. At baseline and 12 months after surgery, Hsp60 positively correlated with the ApoB/ApoA1 ratio and the cholesterol/high-density lipoprotein cholesterol ratio. CONCLUSIONS: Hsp60 concentrations are elevated in morbid obesity and decreased after surgery-induced weight loss. Their correlation with inflammatory markers and cardiovascular risk might link obesity and cardiovascular disease. PMID- 29024429 TI - Genetic barcoding of dark-spored myxomycetes (Amoebozoa)-Identification, evaluation and application of a sequence similarity threshold for species differentiation in NGS studies. AB - Unicellular, eukaryotic organisms (protists) play a key role in soil food webs as major predators of microorganisms. However, due to the polyphyletic nature of protists, no single universal barcode can be established for this group, and the structure of many protistean communities remains unresolved. Plasmodial slime moulds (Myxogastria or Myxomycetes) stand out among protists by their formation of fruit bodies, which allow for a morphological species concept. By Sanger sequencing of a large collection of morphospecies, this study presents the largest database to date of dark-spored myxomycetes and evaluate a partial 18S SSU gene marker for species annotation. We identify and discuss the use of an intraspecific sequence similarity threshold of 99.1% for species differentiation (OTU picking) in environmental PCR studies (ePCR) and estimate a hidden diversity of putative species, exceeding those of described morphospecies by 99%. When applying the identified threshold to an ePCR data set (including sequences from both NGS and cloning), we find 64 OTUs of which 21.9% had a direct match (>99.1% similarity) to the database and the remaining had on average 90.2 +/- 0.8% similarity to their best match, thus thought to represent undiscovered diversity of dark-spored myxomycetes. PMID- 29024430 TI - Impact of sequence processing and taxonomic classification approaches on eukaryotic community structure from environmental samples with emphasis on diatoms. AB - Next-generation sequencing is a common method for analysing microbial community diversity and composition. Configuring an appropriate sequence processing strategy within the variety of tools and methods is a nontrivial task and can considerably influence the resulting community characteristics. We analysed the V4 region of 18S rRNA gene sequences of marine samples by 454-pyrosequencing. Along this process, we generated several data sets with QIIME, mothur, and a custom-made pipeline based on DNAStar and the phylogenetic tree-based PhyloAssigner. For all processing strategies, default parameter settings and punctual variations were used. Our results revealed strong differences in total number of operational taxonomic units (OTUs), indicating that sequence preprocessing and clustering had a major impact on protist diversity estimates. However, diversity estimates of the abundant biosphere (abundance of >=1%) were reproducible for all conducted processing pipeline versions. A qualitative comparison of diatom genera emphasized strong differences between the pipelines in which phylogenetic placement of sequences came closest to light microscopy based diatom identification. We conclude that diversity studies using different sequence processing strategies are comparable if the focus is on higher taxonomic levels, and if abundance thresholds are used to filter out OTUs of the rare biosphere. PMID- 29024431 TI - The Cytoarchitecture of the Telencephalon of Betta Splendens Regan 1910 (Perciformes: Anabantoidei) with a Stereological Approach to the Supracommissural and Postcommissural Nuclei. AB - Teleostean fish brains are useful models to study cellular and functional specializations along the phylogenesis. The Betta splendens Regan 1910 (Siamese fighting fish; Perciformes:Anabantoidei) is known for its aggressive display, courtship behavior, nest building, and offspring care. Here, we present novel and detailed data about the cytoarchitecture of the olfactory bulb and the telencephalic hemispheres of this fish. The hematoxylin-eosin and Nissl techniques served to identify brain nuclei (n = 19 males and n = 21 females) and for the stereological evaluation of the numerical density of cells and the proportion of neurons and glial cells in the ventral telencephalon supracommissural (Vs) and postcommissural (Vp) nuclei of adult males and females. These nuclei are putative homologs of the sexually dimorphic medial amygdala in mammals. The olfactory bulb of Betta splendens consists of 5 concentrically arranged layers plus ganglion cells of the terminal nerves. The dorsal telencephalon consists of 16 different cell groups. The ventral telencephalon has 8 nuclei, plus the lateral septal organ and the nuclei of the preoptic area forming an anatomical continuum. The rostrocaudal extent of the Vs and Vp is not different between sexes. In both nuclei, the proportion of neurons to glial cells is approximately 2:1 and the density of neurons and glial cells is not different between sexes. These morphological findings can subserve future research on the brain function of the Betta splendens and the search for neural sex differences in other central areas of this same species, in other teleost species, or yet in other related vertebrate group. Anat Rec, 00:000-000, 2017. (c) 2017 Wiley Periodicals, Inc. Anat Rec, 301:88-110, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024432 TI - Littoral cell angioma of spleen. PMID- 29024433 TI - Cation-Induced Stabilization and Denaturation of DNA Origami Nanostructures in Urea and Guanidinium Chloride. AB - The stability of DNA origami nanostructures under various environmental conditions constitutes an important issue in numerous applications, including drug delivery, molecular sensing, and single-molecule biophysics. Here, the effect of Na+ and Mg2+ concentrations on DNA origami stability is investigated in the presence of urea and guanidinium chloride (GdmCl), two strong denaturants commonly employed in protein folding studies. While increasing concentrations of both cations stabilize the DNA origami nanostructures against urea denaturation, they are found to promote DNA origami denaturation by GdmCl. These inverse behaviors are rationalized by a salting-out of Gdm+ to the hydrophobic DNA base stack. The effect of cation-induced DNA origami denaturation by GdmCl deserves consideration in the design of single-molecule studies and may potentially be exploited in future applications such as selective denaturation for purification purposes. PMID- 29024434 TI - WHO guide on the economic evaluation of influenza vaccination. AB - Influenza is responsible for substantial morbidity and mortality across the globe, with a large share of the total disease burden occurring in low- and middle-income countries (LMICs). There have been relatively few economic evaluations assessing the value of seasonal influenza vaccination in LMICs. The purpose of this guide is to outline the key theoretical concepts and best practice in methodologies and to provide guidance on the economic evaluation of influenza vaccination in LMICs. It outlines many of the influenza vaccine specific challenges and should help to provide a framework for future evaluations in the area to build upon. PMID- 29024436 TI - Retracted: Effects of Whey Peptides on Cardiovascular Disease Risk Factors. AB - Previous studies have shown that peptides derived from milk proteins can improve blood pressure. Therefore, the authors tested the blood pressure-lowering effects of a hydrolyzed whey protein supplement rich in bioactive peptides. In a 6-week controlled study, 30 prehypertensive or stage 1 hypertensive subjects (blood pressure >=120/80 mm Hg and <=155/95 mm Hg) were randomized to receive 20 g/d of either a hydrolyzed whey protein (active treatment) or an unmodified whey protein (control treatment). Blood pressure, blood lipids, safety measures, side effects, and diet were evaluated throughout the trial. After completion of treatment, a 4 week follow-up was conducted. There was a mean reduction of 8.0+3.2 mm Hg in systolic blood pressure (P<.05) and of 5.5+/-2.1 mm Hg in diastolic blood pressure (P<.05) in the treatment group compared with the control group. Low density lipoprotein cholesterol and high-sensitivity C-reactive protein were significantly improved by treatment. Whey-derived peptides might be a viable treatment option for prehypertensive and/or stage 1 hypertensive populations. PMID- 29024435 TI - Efect of longitudinally oriented collagen conduit combined with nerve growth factor on nerve regeneration after dog sciatic nerve injury. AB - The research on artificial nerve conduits has become a focus of study in peripheral nerve reconstruction so as a possible replacement for the treatment of autologous nerve grafts in clinics. In this study, we used longitudinally oriented collagen conduit (LOCC) combined with nerve growth factor (NGF) to reconstruct long distance of sciatic nerve defects (35 mm) in adult dog model. The long term follow-up evaluation demonstrated that the LOCC/NGF conduit allowed functional and morphological nerve regeneration at the transection site of the injured sciatic nerve. Furthermore, the functional study confirmed that when NGF was loaded onto LOCC it promoted a better recovery of regenerated axons than LOCC alone. The gastrocnemius muscle mass in the LOCC/NGF group was significantly greater than in the LOCC alone group. The results indicated that when LOCC conduit combined with NGF it would provide a preferential environment for sciatic nerve regeneration. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2131-2139, 2018. PMID- 29024438 TI - American Society of Hypertension, Inc In Memorium: Dr Louis Tobian. PMID- 29024437 TI - Prehypertension-What Is It and Should It Be Treated? AB - In May 2006, a panel of experts was assembled during the meeting of the American Society of Hypertension, Inc to discuss the diagnosis and treatment of prehypertension. Is it a real entity? Does it pose a risk? Should it be treated entirely with lifestyle interventions or should some patients be placed on pharmacologic therapy? The panel was chaired by Dr Marvin Moser, Clinical Professor of Medicine at the Yale University School of Medicine, New Haven, CT, and Editor in Chief of The Journal of Clinical Hypertension. Panelists included Dr Thomas Giles, Professor of Medicine at Louisiana State University, New Orleans, LA; Dr Joseph Izzo, Jr, Professor of Medicine at SUNY Buffalo School of Medicine, Buffalo, NY; and Dr Henry Black, Roberts Professor of Preventive Medicine at the Rush University School of Medicine in Chicago, Chicago, IL. PMID- 29024439 TI - Analysis of Recent Papers in Hypertension Jan Basile, MD, Senior Editor. PMID- 29024440 TI - Endothelial Vascular Function in Hypertensive Patients After Renin-Angiotensin System Blockad. AB - It is unclear whether single and combined pharmacologic inhibition of the renin angiotensin-aldosterone system have similar effects on endothelial function and blood pressure (BP). The authors evaluated 63 hypertensive patients divided into 4 groups (hydrochlorothiazide 25 mg/d; irbesartan [IRBE] 150 mg/d; quinapril [QUIN] 20 mg/d; or IRBE 150 mg/d + QUIN 20 mg/d) and 25 healthy normotensive subjects (normal) followed for 12 weeks. Endothelium-dependent dysfunction measured as flow-mediated dilation at Weeks 0 and 12 were: normal, 11.5%+/-2.4% vs 13.5%+/-2.0%; hydrochlorothiazide, 7.3%+/-2.0% vs 12.8%+/-3.1%; QUIN, 7.2%+/ 2.8% vs 13.2%+/-2.1%; IRBE, 7.1%+/-2.8% vs 13.0%+/-2.9%; and IRBE + QUIN, 7.5%+/ 1.9% vs 12.8%+/-3.0%. Nitroglycerin-mediated responses were: normal, 26.0%+/-1.9% vs 24.0%+/-2.5%; hydrochlorothiazide, 17.0%+/-2.2% vs 18.3%+/-2.6%; QUIN, 17.8%+/ 3.2% vs 23.4%+/-3.0%; IRBE, 16.8%+/-3.6% vs 24.7%+/-2.0%; and IRBE + QUIN, 17.3%+/-3.0% vs 25.1%+/-2.5%. Antihypertensive therapy restored BP to normal and improved the endothelium-dependent and -independent dysfunction after renin angiotensin-aldosterone system blockade. In a further finding, the combined effect of angiotensin-converting enzyme inhibition and angiotensin II type 1 receptor blockade was not superior to the action of either of these treatments separately. PMID- 29024441 TI - Therapy: Counseling for Mental Health and Illness. PMID- 29024442 TI - Con: Treating hepatitis C virus With direct-acting antivirals: Fear not the perceived threat of hepatocellular carcinoma. PMID- 29024443 TI - Bioglass enhanced wound healing ability of urine-derived stem cells through promoting paracrine effects between stem cells and recipient cells. AB - In cell therapy, tissue regeneration ability of stem cells relies on the paracrine effects between stem cells and recipient cells. Our recent studies demonstrated that, in tissue engineering, bioactive silicates could stimulate paracrine effects between stem cells and recipient cells, which enhanced tissue generation. Therefore, we proposed that, in cell therapy, it may be an effective method to improve tissue regeneration ability of stem cells through activating the paracrine effects between stem cells and recipient cells with bioactive silicates. As urine-derived stem cells (USCs) have been injected for wound healing and bioglass (BG) have shown bioactivity for various types of stem cells, in this study, we activated USCs with effective BG ionic products. Then the conditioned medium of BG-activated USCs were used to culture endothelial cells and fibroblasts as well as co-cultures of endothelial cells and fibroblasts. Results showed that growth factor expression in BG-activated USCs was upregulated. In addition, paracrine effects between USCs and recipient cells in wound healing were stimulated, which resulted in enhanced capillary-like network formation of endothelial cells and matrix protein production as well as myofibroblast differentiation of fibroblasts. Finally, the BG-activated USCs were applied on full-thickness excisional wounds. Results confirmed that BG-activated USCs had better wound healing ability through improving angiogenesis and collagen deposition in wound sites as compared with USCs without any treatment. Taken together, BG can be used to promote wound healing ability of USCs by enhancing paracrine effects between USCs and recipient cells. PMID- 29024444 TI - Role of esophagogastroduodenoscopy in detecting distal duodenal lesions: A single center pilot study in Southern China. AB - OBJECTIVE: Esophagogastroduodenoscopy (EGD) is a standard instrument for detecting upper gastrointestinal lesions. However, the distal duodenum is often missed. This study aimed to clarify the diagnostic role of EGD in the distal duodenum. METHODS: This retrospective study enrolled patients with distal duodenal lesions who underwent EGD between January 2004 and July 2016 at our center. The rate of missed diagnosis using EGD examination was calculated. Logistic regression analysis was performed to identify the factors associated with the missed diagnoses. RESULTS: Sixty-three patients were included in the study. The overall diagnostic rate of distal duodenal lesions on EGD was 58.7%. After excluding the patients in whom the EGD did not reach the distal duodenum, this rate rose to 82.2%. In univariate analysis, intravenous sedation (26.8% vs 68.2%, odds ratio [OR] 0.171, P = 0.002), signs of lesions adjacent to the stomach (19.4% vs 62.5%, OR 0.099, P = 0.001), prior enteroscopy experience (15.0% vs 87.0%, OR 0.026, P < 0.001), and endoscopists with experiences of over 10 years (13.8% vs 64.7%, OR 0.087, P = 0.000) were associated with a decreased risk of missed diagnosis. In multivariate analysis, signs of lesions adjacent to the stomach (OR 0.167, P = 0.039) and prior enteroscopy experience (OR 0.035, P < 0.001) were significant independent protective factors. CONCLUSION: EGD may be important in diagnosing distal duodenal lesions. Patients with gastric retention, blood in the stomach or erosion in the proximal duodenum may benefit from the deep insertion of EGD. PMID- 29024445 TI - A rapid bio-optical sensor for diagnosing Q fever in clinical specimens. AB - Recent zoonotic outbreaks, such as Zika, Middle East respiratory syndrome and Ebola, have highlighted the need for rapid and accurate diagnostic assays that can be used to aid pathogen control. Q fever is a zoonotic disease caused by the transmission of Coxiella burnetii that can cause serious illness in humans through aerosols and is considered a potential bioterrorism agent. However, the existing assays are not suitable for the detection of this pathogen due to its low levels in real samples. We here describe a rapid bio-optical sensor for the accurate detection of Q fever and validate its clinical utility. By combining a bio-optical sensor, that transduces the presence of the target DNA based on binding-induced changes in the refractive index on the waveguide surface in a label-free and real-time manner, with isothermal DNA amplification, this new diagnostic tool offers a rapid (<20 min), 1-step DNA amplification/detection method. We confirmed the clinical sensitivity (>90%) of the bio-optical sensor by detecting C. burnetii in 11 formalin-fixed, paraffin-embedded liver biopsy samples from acute Q fever hepatitis patients and in 16 blood plasma samples from patients in which Q fever is the cause of fever of unknown origin. PMID- 29024446 TI - Baroreflex sensitivity: An algebraic dilemma. PMID- 29024447 TI - The influences of a novel anti-adhesion device, thermally cross-linked gelatin film on peritoneal dissemination of tumor cells: The in vitro and in vivo experiments using murine carcinomatous peritonitis models. AB - To create anti-adhesive materials to be more effective and safer, we developed a thermally cross-linked gelatin film that showed superior anti-adhesive effects with excellent peritoneal regeneration. However, it may act as a convenient scaffold for tumor cell growth, thereby accelerating peritoneal dissemination when used in surgery for abdominal tumors. In this study, we tried to clarify this issue using mouse carcinomatous peritonitis models. First, we examined the in vitro tumor cell growth of mouse B16 melanoma or Colon26 cells on the gelatin film or the conventional hyarulonate/carboxymethylcellulose film. Tumor cell growth on each film was significantly lower than that of the control (no film). Next, we conducted the following in vivo experiments: After the parietal peritoneum was partially removed and covered with each film or without any film, mice were inoculated intraperitoneally with B16 melanoma or Colon26/Nluc cells expressing NanoLuc luciferase gene. At 7 days after the operation, we measured the weight of B16 melanoma tumors or the NanoLuc activity of Colon26/Nluc cells using in vivo imaging at the injured sites. There were no significant differences in the weight of the tumors and the NanoLuc activity among the three groups. We also observed the survival time of mice receiving the same operation and treatments. There was no significant difference in the survival time among the three groups. These results suggest that the gelatin film will likely not accelerate peritoneal dissemination as a convenient scaffold for tumor cell growth when used in surgery for abdominal tumors. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2122-2130, 2018. PMID- 29024449 TI - Re: Clinical follow up of women after hypertensive disease in pregnancy and Moderately elevated blood pressure during pregnancy and odds of hypertension later in life: the POUCHmoms longitudinal study Potential mechanisms for pregnant and, nonpregnant hypertension. PMID- 29024448 TI - Isolated sphenoid sinus opacifications: a systematic review and meta-analysis. AB - BACKGROUND: Isolated sphenoid sinus opacifications (ISSOs) represent a relatively uncommon disease with the potential for serious complications. To better understand this disease, we performed a systematic review to further characterize the underlying pathologies, associated symptoms, and treatment outcomes of patients with ISSOs. METHODS: A systematic review of ISSO case series was performed utilizing the Medline, Embase, Web of Science, and Cochrane databases in accordance with guidelines established by PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Data of interest included disease pathology, associated symptoms, and treatment outcomes. RESULTS: Of the initial 1051 hits from the 4 databases, 17 articles, with a combined 1133 ISSO patients, were ultimately included in the review. On a weighted analysis, the underlying pathologies were classified as chronic rhinosinusitis without nasal polyps (CRSsNP) (28.3%), mucoceles (20.3%), fungal sinusitis (12.5%), malignant neoplasms (7.7%), intracranial lesions (7.0%), benign neoplasms (5.7%), chronic rhinosinusitis with nasal polyps (CRSwNP) (3.4%), and other lesions (4.7%). Cranial neuropathies were present in 16.3% (95% confidence interval [CI], 10.1 22.5%) of ISSO patients. A favorable surgical complication rate of 1.5% (95% CI, 0.1% to 3.2%) was found in patients undergoing surgery for an ISSO. CONCLUSION: ISSOs are caused by diverse pathologies. Given the considerable rates of neoplastic disease and cranial neuropathies, patients affected by an ISSO should be monitored closely and treated aggressively. Prompt surgical intervention, with either diagnostic or therapeutic intent, is often indicated. PMID- 29024450 TI - Optical clearing for multiscale biological tissues. AB - Three-dimensional reconstruction of tissue structures is essential for biomedical research. The development of light microscopes and various fluorescent labeling techniques provides powerful tools for this motivation. However, optical imaging depth suffers from strong light scattering due to inherent heterogeneity of biological tissues. Tissue optical clearing technology provides a distinct solution and permits us to image large volumes with high resolution. Until now, various clearing methods have been developed. In this study, from the perspective of the end users, we review in vitro tissue optical clearing techniques based on the sample features in terms of size and age, enumerate the methods suitable for immunostaining and lipophilic dyes and summarize the combinations with various imaging techniques. We hope this review will be helpful for researchers to choose the most suitable clearing method from a variety of protocols to meet their specific needs. PMID- 29024451 TI - Activation of Group II Metabotropic Glutamate Receptors Increases Proliferation but does not Influence Neuronal Differentiation of a Human Neural Stem Cell Line. AB - The multiple functions of glutamate include regulation of neural development and stem cells. While the importance of the ionotropic glutamate receptors is well established, less is known about the role of metabotropic glutamate receptors (mGluRs). In this study, we examined the effects of pharmacological activation and inhibition of mGluR2/3 on proliferation, differentiation and viability of a human neural stem cell line. Immunofluorescence staining revealed the presence of mGluR2/3 receptors on both proliferating and differentiating stem cells, including cells differentiated into beta-tubulin III-positive immature neurons and glial fibrillary acidic protein-positive astrocytes. Stimulation of mGluR2/3 receptors during cell propagation using the agonist (2S,2'R,3'R)-2-(2',3' dicarboxycyclopropyl) glycine (DCG-IV) increased total cell numbers significantly (60% compared to untreated controls). This effect could be inhibited by the specific antagonist (2S)-2-Amino-2-[(1S,2S)-2-carboxycycloprop-1-yl]-3-(xanth-9 yl) propanoic acid (LY341495). The antagonist alone had no effect. No significant decrease in cell death was found following mGluR2/3 stimulation, suggesting that the observed elevation in cell number was not related to cell viability. Subsequent differentiation of the cells resulted in a slight decrease in beta tubulin III-positive neurons (5.2-3.2% of total cells) for DCG-IV pre-treated cultures. Treatment with DCG-IV and LY342495 during cell differentiation alone had no such effect. Western blot analysis revealed that the active, dimeric form of mGluR2/3 was mainly present on the proliferating cells, which may explain our findings. This study emphasizes the importance of glutamate and mGluRs on regulation of human neural stem cells and suggests a significant role of mGluR2/3 during cell proliferation. PMID- 29024452 TI - Two-year clinical outcomes of patients treated with overlapping absorb scaffolds: An analysis of the ABSORB EXTEND single-arm study. AB - BACKGROUND: Preclinical data showed that overlapping (OVP) scaffolds might result in delayed healing and strut coverage compared to nonOVP scaffold segments. Furthermore, OVP in patients could result in increased periprocedure myocardial infarction (MI) rate secondary to side branch occlusion; however, little is known whether this may have an impact on long-term clinical outcomes. METHODS: ABSORB EXTEND is a prospective, single-arm, open-label clinical study in which 812 patients were enrolled at 56 sites. In this study, we compared the immediate and 2-year clinical outcomes of patients with OVP scaffolds (n = 115) to those of patients with nonOVP scaffolds (n = 697). The primary objective was the comparison of major adverse cardiac event (MACE) (cardiac death, MI and ischemic driven target lesion revascularization [TLR]) and scaffold thrombosis (ST) rates up to 2 years. RESULTS: Baseline clinical and angiographic characteristics were comparable between cohorts except for longer lesions in the OVP patients as expected (16.7 +/- 7.3 vs. 11.6 +/- 4.4 mm, P < 0.0001), higher lesion complexity (B2) and numerically smaller vessel size. In-hospital, there was a marked increase in MACE in the OVP cohort (7.0 vs. 0.9%, P = 0.002), exclusively driven by a higher rate of periprocedure MI (7.0 vs. 0.9%, P = 0.002). Long-term MACE did not significantly differ between groups (10.4% in the OVP cohort vs. 6.6% in the no-OVP group, P = 0.1) with comparable rates of cardiac death (0.9 vs. 1.2%, P = 1.0) and ischemia-driven TLR (1.7 vs. 2.5%, P = 1.0). Cumulative incidence of MI was higher in the OVP cohort (7.8 vs. 3.0%, P = 0.02). Of note, the rate of MI between hospital discharge and 2-year follow-up was lower in the OVP cohort (0.8 vs. 2.1%, P = 0.04). Cumulative incidence of definite/probable ST was relatively low and comparable between groups (1.8 vs. 1.5%, P = 0.7). CONCLUSIONS: In this low-to-moderate complex population treated with the ABSORB scaffold the OVP group showed a higher incidence of periprocedure MI with no immediate or long-term increase in cardiac death, TLR or ST. PMID- 29024453 TI - The histopathologic reliability of tissue taken from cadavers within the gross anatomy laboratory. AB - The purpose of this study was to examine the histopathologic reliability of embalmed cadaveric tissue taken from the gross anatomy laboratory. Tissue samples from hearts, livers, lungs, and kidneys were collected after the medical students' dissection course was completed. All of the cadavers were embalmed in a formalin-based fixative solution. The tissue was processed, embedded in paraffin, sectioned at six micrometers, and stained with H&E. The microscope slides were evaluated by a board certified pathologist to determine whether the cellular components of the tissues were preserved at a high enough quality to allow for histopathologic diagnosis. There was a statistically significant relationship between ratings and organ groups. Across all organs, there was a smaller proportion of "poor" ratings. The lung group had the highest percentage of "poor" ratings (23.1%). The heart group had the least "poor" ratings (0.0%). The largest percentage of "satisfactory" ratings were in the lung group (52.8%), and the heart group contained the highest percentage of "good" ratings (58.5%) The lung group had the lowest percentage of "good" ratings (24.2%). These results indicate that heart tissue is more reliable than lung, kidney, or liver tissue when utilizing tissue from the gross anatomy laboratory for research and/or educational purposes. This information advises educators and researchers about the quality and histopathologic reliability of tissue samples obtained from the gross anatomy laboratory. Anat Sci Educ 11: 207-214. (c) 2017 American Association of Anatomists. PMID- 29024455 TI - The Science of Salt: A regularly updated systematic review of the implementation of salt reduction interventions (September 2016-February 2017). AB - This periodic review aims to identify, summarize, and appraise studies relating to the implementation of salt reduction strategies that were published between September 2016 and February 2017. A total of 41 studies were included as relevant to the design, assessment, and implementation of salt reduction strategies, and a detailed appraisal was conducted on the seven studies that evaluated the impact of salt reduction strategies. Of these, three were national studies or included large populations and four were conducted in communities with small participant sample sizes. Each study used a different strategy for reducing salt intake varying from category-specific sodium targets for packaged food to use of a low sodium salt substitute to behavior change interventions. Four studies found statistically significant decreases in dietary salt intake and one study showed statistically significant decreases in mean sodium density of packaged food products. Four of the seven studies used either spot or 24-hour urine samples to measure dietary salt intake and five were conducted in East or Southeast Asia-two of which were in low- and middle-income countries. Study quality varied among the seven studies and all except one had one or more risks related to bias. PMID- 29024456 TI - Disseminated histoplasmosis in an immuno-competent young male: Role of bone marrow examination in rapid diagnosis. AB - Fungal infections are usually seen in elderly or immuno-compromised individuals particularly with human immunodeficiency virus infection. In immuno-competent individuals, they seldom present with overt clinical symptoms. In such cases diagnosis is made by combination of tests along with direct microscopic visualization of the organism. We present a case of immuno-competent individual who presented with unexplained fever and found to have Histoplasma capsulatum infection on bone marrow examination. PMID- 29024454 TI - Disclosure of Personalized Rheumatoid Arthritis Risk Using Genetics, Biomarkers, and Lifestyle Factors to Motivate Health Behavior Improvements: A Randomized Controlled Trial. AB - OBJECTIVE: To determine the effect of disclosure of rheumatoid arthritis (RA) risk personalized with genetics, biomarkers, and lifestyle factors on health behavior intentions. METHODS: We performed a randomized controlled trial among first-degree relatives without RA. Subjects assigned to the Personalized Risk Estimator for Rheumatoid Arthritis (PRE-RA) group received the web-based PRE-RA tool for RA risk factor education and disclosure of personalized RA risk estimates, including genotype/autoantibody results and behaviors (n = 158). Subjects assigned to the comparison arm received standard RA education (n = 80). The primary outcome was readiness for change based on the trans-theoretical model, using validated contemplation ladder scales. Increased motivation to improve RA risk-related behaviors (smoking, diet, exercise, or dental hygiene) was defined as an increase in any ladder score compared to baseline, assessed immediately, 6 weeks, and 6 months post-intervention. Subjects reported behavior change at each visit. We performed intent-to-treat analyses using generalized estimating equations for the binary outcome. RESULTS: Subjects randomized to PRE RA were more likely to increase ladder scores over post-intervention assessments (relative risk 1.23, 95% confidence interval [95% CI] 1.01, 1.51) than those randomized to nonpersonalized education. At 6 months, 63.9% of PRE-RA subjects and 50.0% of comparison subjects increased motivation to improve behaviors (age adjusted difference 15.8%; 95% CI 2.8%, 28.8%). Compared to nonpersonalized education, more PRE-RA subjects increased fish intake (45.0% versus 22.1%; P = 0.005), brushed more frequently (40.7% versus 22.9%; P = 0.01), flossed more frequently (55.7% versus 34.8%; P = 0.004), and quit smoking (62.5% versus 0.0% among 11 smokers; P = 0.18). CONCLUSION: Disclosure of RA risk personalized with genotype/biomarker results and behaviors increased motivation to improve RA risk related behaviors. Personalized medicine approaches may motivate health behavior improvements for those at risk for RA and provide rationale for larger studies evaluating effects of behavior changes on clinical outcomes, such as RA-related autoantibody production or RA development. PMID- 29024457 TI - Design of Poly-l-Glutamate-Based Complexes for pDNA Delivery. PMID- 29024458 TI - From Polymers to Functional Biomaterials. PMID- 29024459 TI - Phosphate-Responsive Biomimetic Nanofluidic Diodes Regulated by Polyamine Phosphate Interactions: Insights into Their Functional Behavior from Theory and Experiment. AB - There is currently high interest in developing nanofluidic devices whose iontronic output is defined by biological interactions. The fabrication of a phosphate responsive nanofluidic diode by using the biological relevant amine phosphate interactions is shown. The fabrication procedure includes the modification of a track-etched asymmetric (conical) nanochannel with polyallylamine (PAH) by electrostatic self-assembly. PAH is the arcaetypical model of polyamine and it is further used to address the nanochannels with phosphate responsivity. In order to explore the influence that phosphate in solution has in the conductance of the modified nanochannels, current-voltage measurements using different concentrations of phosphates are performed. Furthermore, to have a complete physicochemical understanding of the system, experimental data is analyzed using a continuous model based on Poison-Nernst Planck equations and compared with results obtained from stochastic Monte Carlo simulations. PMID- 29024460 TI - Reducing Readmissions: Nurse-Driven Interventions in the Transition of Care From the Hospital. AB - BACKGROUND: Transitions of care (TOC) from hospitals is a continuing focus for quality improvement to reduce readmissions. Sufficient resources to offer interventions remain an issue for hospitals, leading to efforts to target high risk patients and identify effective interventions. OBJECTIVES: Describe and measure effects, hospital-wide and among high-risk patients, of a multifaceted TOC program on 30-day readmissions in a 441-bed acute care community hospital. METHODS: Pre-post TOC intervention examining 30-day readmission rates during planning, implementation, and intervention years compared to baseline. Patient characteristics and services received by patients targeted for TOC individualized interventions during hospitalization and after discharge were retrieved from medical records and compared over 4 years during which the intervention was planned and implemented. RESULTS: Summary hospital-wide readmission rates reduced from 11.8% during planning (2011), 12.0% during implementation (2012), to 11.4% during intervention (2013) compared to 13.7% at prestudy baseline (2010; p < .001). TOC program patients were mostly identified by clinician referral (66.7%) rather than computer-generated risk at admission (32.3%), and nearly one-third (30.6%) were readmitted within 30 days of release. LINKING EVIDENCE TO ACTION: Reductions in readmissions were achieved using a multifaceted approach with efforts at admission, predischarge, and postdischarge in a community hospital. Having clinical staff involved in TOC program is important in both patient identification and interventions to reduce readmissions. PMID- 29024462 TI - Attitudes to personality disorder of staff working in high-security and medium security hospitals. AB - The discourse surrounding personality disorder is largely negative, and the diagnosis is considered to be associated with a degree of stigma. This study aimed to investigate staff attitudes towards personality disorder in high security and medium-security forensic-psychiatric hospitals in the UK. The Attitude to Personality Disorder Questionnaire was completed by 132 participants who were all current employees with clinical roles. Staff attitudes to personality disorder in the current study were significantly less positive than in comparable studies in similar settings. Having completed staff training surrounding personality disorder and being from a non-nursing professional background were the best predictors of positive attitudes to personality disorder. The findings of this study offer support to the pursuit of improving access to training in personality disorder for those working with this clinical presentation. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29024461 TI - Reproducible diagnosis of chronic lymphocytic leukemia by flow cytometry: An European Research Initiative on CLL (ERIC) & European Society for Clinical Cell Analysis (ESCCA) Harmonisation project. AB - The diagnostic criteria for CLL rely on morphology and immunophenotype. Current approaches have limitations affecting reproducibility and there is no consensus on the role of new markers. The aim of this project was to identify reproducible criteria and consensus on markers recommended for the diagnosis of CLL. ERIC/ESCCA members classified 14 of 35 potential markers as "required" or "recommended" for CLL diagnosis, consensus being defined as >75% and >50% agreement, respectively. An approach to validate "required" markers using normal peripheral blood was developed. Responses were received from 150 participants with a diagnostic workload >20 CLL cases per week in 23/150 (15%), 5-20 in 82/150 (55%), and <5 cases per week in 45/150 (30%). The consensus for "required" diagnostic markers included: CD19, CD5, CD20, CD23, Kappa, and Lambda. "Recommended" markers potentially useful for differential diagnosis were: CD43, CD79b, CD81, CD200, CD10, and ROR1. Reproducible criteria for component reagents were assessed retrospectively in 14,643 cases from 13 different centers and showed >97% concordance with current approaches. A pilot study to validate staining quality was completed in 11 centers. Markers considered as "required" for the diagnosis of CLL by the participants in this study (CD19, CD5, CD20, CD23, Kappa, and Lambda) are consistent with current diagnostic criteria and practice. Importantly, a reproducible approach to validate and apply these markers in individual laboratories has been identified. Finally, a consensus "recommended" panel of markers to refine diagnosis in borderline cases (CD43, CD79b, CD81, CD200, CD10, and ROR1) has been defined and will be prospectively evaluated. (c) 2017 International Clinical Cytometry Society. PMID- 29024463 TI - IChem: A Versatile Toolkit for Detecting, Comparing, and Predicting Protein Ligand Interactions. AB - Structure-based ligand design requires an exact description of the topology of molecular entities under scrutiny. IChem is a software package that reflects the many contributions of our research group in this area over the last decade. It facilitates and automates many tasks (e.g., ligand/cofactor atom typing, identification of key water molecules) usually left to the modeler's choice. It therefore permits the detection of molecular interactions between two molecules in a very precise and flexible manner. Moreover, IChem enables the conversion of intricate three-dimensional (3D) molecular objects into simple representations (fingerprints, graphs) that facilitate knowledge acquisition at very high throughput. The toolkit is an ideal companion for setting up and performing many structure-based design computations. PMID- 29024464 TI - Influence of lipophilicity in O-acyl and O-alkyl derivatives of juglone and lawsone: a structure-activity relationship study in the search for natural herbicide models. AB - BACKGROUND: Naphthoquinones are known for their broad range of biological activities. Given the increasing demands of consumers in relation to food quality and growing concerns about the impact of synthetic herbicides, it is necessary to search for new agrochemicals. Natural products and allelopathy provide new alternatives for the development of pesticides with lower toxicity and greater environmental compatibility. RESULTS: A structure-activity relationship to evaluate the effect of bioavailability was performed. A total of 44 O-acyl and O alkyl derivatives of juglone and lawsone with different linear chain lengths were prepared. These compounds were tested on etiolated wheat coleoptiles, standard target species (STS) and four weeds, Echinochloa crus-galli L., Lolium rigidum Gaud., Lolium perenne L. and Avena fatua L. The results showed a strong influence of lipophilicity and, in most cases, the data fitted a logP-dependent quadratic mathematical model. CONCLUSION: The effects produced were mostly stunting and necrosis caused by growth inhibition. The potential structure and activity behaviour is described. (c) 2017 Society of Chemical Industry. PMID- 29024465 TI - Active Sites Intercalated Ultrathin Carbon Sheath on Nanowire Arrays as Integrated Core-Shell Architecture: Highly Efficient and Durable Electrocatalysts for Overall Water Splitting. AB - The development of active bifunctional electrocatalysts with low cost and earth abundance toward oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) remains a great challenge for overall water splitting. Herein, metallic Ni4 Mo nanoalloys are firstly implanted on the surface of NiMoOx nanowires array (NiMo/NiMoOx ) as metal/metal oxides hybrid. Inspired by the superiority of carbon conductivity, an ultrathin nitrogen-doped carbon sheath intercalated NiMo/NiMoOx (NC/NiMo/NiMoOx ) nanowires as integrated core-shell architecture are constructed. The integrated NC/NiMo/NiMoOx array exhibits an overpotential of 29 mV at 10 mA cm-2 and a low Tafel slope of 46 mV dec-1 for HER due to the abundant active sites, fast electron transport, low charge-transfer resistance, unique architectural structure and synergistic effect of carbon sheath, nanoalloys, and oxides. Moreover, as OER catalysts, the NC/NiMo/NiMoOx hybrids require an overpotential of 284 mV at 10 mA cm-2 . More importantly, the NC/NiMo/NiMoOx array as a highly active and stable electrocatalyst approaches ~10 mA cm-2 at a voltage of 1.57 V, opening an avenue to the rational design and fabrication of the promising electrode materials with architecture structures toward the electrochemical energy storage and conversion. PMID- 29024469 TI - Noninvasive follicular thyroid neoplasm with papillary-like nuclear features in the pediatric age group. AB - BACKGROUND: The most common malignant thyroid neoplasm in children is papillary thyroid carcinoma (PTC). In 2015, the Endocrine Pathology Society introduced the terminology "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) to replace the noninvasive follicular variant of PTC. The objective of the current study was to evaluate previously diagnosed PTC in the pediatric population, reappraise it for NIFTP, and discuss the impact of NIFTP on the risk of malignancy (ROM) for each The Bethesda System for Reporting Thyroid Cytopathology category in the pediatric population. METHODS: The electronic databases of both study institutions were searched for all thyroidectomy specimens in patients aged <19 years from June 1, 2001 through June 1, 2016. The patient's age, sex, diagnosis, previous fine-needle aspiration cytology diagnosis, and follow-up were tabulated. Slides for available cases were reviewed and cases qualifying as NIFTP were separated. RESULTS: The cohort included 101 resected nodules; cytological diagnoses were available for 95 cases. These cases included diagnoses of nondiagnostic (5 cases; 5.2%), benign (21 cases; 22.1%), atypia/follicular lesion of undetermined significance (9 cases; 9.5%), follicular neoplasm/suspicious for follicular neoplasm (FN/SFN) (25 cases; 26.3%), suspicious for malignancy (7 cases; 7.4%), and malignant (28 cases; 29.5%). On the histological follow-up, 50 cases (49.5%) were benign, 49 cases (48.5%) were malignant, and 2 cases (1.9%) were NIFTP. These NIFTP cases originally were diagnosed as FNs on fine-needle aspiration cytology. The average ROM for FNs with and without NIFTPs was 28% and 25%, respectively CONCLUSIONS: According to our rate of 1.9% for NIFTPs on reappraisal for resected nodules, this entity is likely to be less frequent in the pediatric population due to the higher prevalence of PTCs and/or more aggressive variants. NIFTPs do not appear to affect the ROM for The Bethesda System for Reporting Thyroid Cytopathology categories in the pediatric population. However, large-scale studies are necessary to determine whether NIFTPs could affect the pediatric population. Cancer Cytopathol 2018;126:27-35. (c) 2017 American Cancer Society. PMID- 29024470 TI - Predictive Validity of Radiographic Trabecular Bone Texture in Knee Osteoarthritis: The Osteoarthritis Research Society International/Foundation for the National Institutes of Health Osteoarthritis Biomarkers Consortium. AB - OBJECTIVE: To evaluate radiographic subchondral trabecular bone texture (TBT) as a predictor of clinically relevant osteoarthritis (OA) progression (combination of symptom and structural worsening). METHODS: The Foundation for the National Institutes of Health (FNIH) OA Biomarkers Consortium undertook a study of progressive knee OA cases (n = 194 knees with both radiographic and pain progression over 24-48 months) and comparators (n = 406 OA knees not meeting the case definition). TBT parameters were extracted from a medial subchondral tibial region of interest by fractal signature analysis of radiographs using validated semiautomated software. Baseline TBT and time-integrated values over 12 and 24 months were evaluated for association with case status and separately with radiographic and pain progression status, adjusted for age, sex, body mass index, race, baseline Kellgren/Lawrence grade, baseline joint space width, Western Ontario and McMaster Universities Osteoarthritis Index pain score, and pain medication use. C statistics were generated from receiver operating characteristic curves. RESULTS: Relative to comparators, cases were characterized by thinner vertical and thicker horizontal trabeculae. The summed composite of 3 TBT parameters at baseline and over 12 and 24 months best predicted case status (odds ratios 1.24-1.43). The C statistic for predicting case status using the TBT composite score (0.633-0.649) was improved modestly but statistically significantly over the use of covariates alone (0.608). One TBT parameter, reflecting thickened horizontal trabeculae in cases, at baseline and over 12 and 24 months, predicted risk of any progression (radiographic and/or pain progression). CONCLUSION: Although associations are modest, TBT could be an attractive means of enriching OA trials for progressors since it can be generated from screening knee radiographs already standard in knee OA clinical trials. PMID- 29024473 TI - Building Sustainable Careers in Nursing Science: Scientific Innovations and Transdisciplinary Collaborations. PMID- 29024471 TI - PD-L1 expression in non-small cell lung carcinoma: Comparison among cytology, small biopsy, and surgical resection specimens. AB - BACKGROUND: One immunotherapeutic agent for patients with advanced non-small cell lung carcinoma, pembrolizumab, has a companion immunohistochemistry (IHC)-based assay that predicts response by quantifying programmed death-ligand 1 (PD-L1) expression. The current study assessed the feasibility of quantifying PD-L1 expression using cytologic non-small cell lung carcinoma specimens and compared the results with those from small biopsy and surgical resection specimens. METHODS: PD-L1 expression was quantified using the IHC-based 22C3 pharmDx assay, with "positivity" defined as staining in >=50% viable tumor cells; >= 100 tumor cells were required for test adequacy. For cytology specimens, IHC was performed on cell block sections. RESULTS: A total of 214 specimens were collected from 188 patients, 206 of which (96%) were found to be adequately cellular, including 36 of 40 cytology (90%) and 69 of 72 small biopsy (96%) specimens. There was no significant difference noted with regard to the feasibility of PD-L1 IHC on small biopsy specimens compared with surgical resection specimens (P = .99), or between the percentage of PD-L1-positive cytology and histology (including surgical resection and histologic small biopsy) specimens (P = .083). PD-L1 expression was found to be concordant among samples from 21 of 23 patients from whom > 1 specimen was collected (91%). There also was no significant difference observed with regard to rates of PD-L1 positivity when comparing age, sex, diagnosis, and specimen site. CONCLUSIONS: Quantification of PD-L1 expression is feasible on cytology specimens, and the results are comparable to those obtained from surgical resection and small biopsy specimens, including in matched specimens and using a single predictive IHC marker. Future studies will be necessary to determine the comparative value of other antibodies and their ability to predict response to immunotherapy. Cancer Cytopathol 2017;125:896-907. (c) 2017 American Cancer Society. PMID- 29024472 TI - Hearing crosstalk: the molecular conversation orchestrating inner ear dorsoventral patterning. AB - The inner ear is a structurally and functionally complex organ that functions in balance and hearing. It originates during neurulation as a localized thickened region of rostral ectoderm termed the otic placode, which lies adjacent to the developing caudal hindbrain. Shortly after the otic placode forms, it invaginates to delineate the otic cup, which quickly pinches off of the surface ectoderm to form a hollow spherical vesicle called the otocyst; the latter gives rise dorsally to inner ear vestibular components and ventrally to its auditory component. Morphogenesis of the otocyst is regulated by secreted proteins, such as WNTs, BMPs, and SHH, which determine its dorsoventral polarity to define vestibular and cochlear structures and sensory and nonsensory cell fates. In this review, we focus on the crosstalk that occurs among three families of secreted molecules to progressively polarize and pattern the developing otocyst. WIREs Dev Biol 2018, 7:e302. doi: 10.1002/wdev.302 This article is categorized under: Establishment of Spatial and Temporal Patterns > Gradients Signaling Pathways > Cell Fate Signaling Vertebrate Organogenesis > From a Tubular Primordium: Non Branched. PMID- 29024474 TI - Heart failure following blood cancer therapy in pediatric and adult populations. AB - AIM: The link between chemotherapy treatment and cardiotoxicity is well established, particularly for adults with blood cancers. However, it is less clear for children. This analysis aimed to compare the trajectory and mortality of children and adults who received chemotherapy for blood cancers and were subsequently hospitalized for heart failure. METHODS: Linked data from the Queensland Cancer Registry, Death Registry and Hospital Administration records for initial chemotherapy and later heart failure were reviewed (1996-2009). Of all identified blood cancer patients (N = 23 434), 8339 received chemotherapy, including 817 children (aged <=18 years at time of cancer diagnosis) and 7522 adults. Time-varying Cox proportional hazards regression models were used to compare the characteristics and survival between the two groups. RESULTS: Of those who were subsequently hospitalized for heart failure, 70% of children and 46% of adults had the index admission within 12 months of their cancer diagnosis. Of these, 53% of the pediatric heart failure population and 71% of the adult heart failure population died within the study period. Following adjustment for age, sex and chemotherapy admissions, children with heart failure had an increased mortality risk compared to their non-heart failure counterparts, a difference which was much greater than that between the adult groups. CONCLUSION: The impact of heart failure on children previously treated for blood cancer is more severe than for adults, with earlier morbidity and greater mortality. Improved strategies are needed for the prevention and management of cardiotoxicity in this population. PMID- 29024476 TI - Prevalence and outcomes of cystic lesions of the transplant pancreas: The University of Wisconsin Experience. AB - Literature on the behavior of cystic lesions in pancreas transplants is scarce, and hence a better understanding is warranted. Data on recipients and their respective donors that underwent simultaneous kidney and pancreas, pancreas transplant alone, and pancreas after kidney between 1994 and 2015 were reviewed (n = 1185). Cystic lesions of the transplant pancreas developed in 22 patients (1.8%): 12 pseudocysts, 2 cysts/remnants, 4 intraductal papillary mucinous neoplasms (IPMN), 2 adenocarcinomas, 1 low-grade intraepithelial pancreatic neoplasia, and 1 case of polycystic kidney disease. The median size was 3.6 cm (1.6-5.5 cm), and occurred at a median time of 65.5 months (2-183 months) posttransplant. The median age of the graft at time of diagnosis was 42 years (25.7-54.5), with 17 of 22 grafts (77%) functioning at time of diagnosis. Triggers for investigation were elevations in pancreatic enzymes, re-admissions for abdominal pain, and incidentalomas. High-resolution imaging and diagnostic biopsy/aspiration with ancillary tests were the main diagnostic tests. Most pseudocysts were managed by percutaneous drainage, and although no firm inference can be made from such a small series, we have observed that the behavior and management of IPMN and adenocarcinoma in the pancreas graft appears congruent to that of the native pancreas. PMID- 29024477 TI - T-Nb2 O5 /C Nanofibers Prepared through Electrospinning with Prolonged Cycle Durability for High-Rate Sodium-Ion Batteries Induced by Pseudocapacitance. AB - Homogeneous ultrasmall T-Nb2 O5 nanocrystallites encapsulated in 1D carbon nanofibers (T-Nb2 O5 /CNFs) are prepared through electrospinning followed by subsequent pyrolysis treatment. In a Na half-cell configuration, the obtained T Nb2 O5 /CNFs with the merits of unique microstructures and inherent pseudocapacitance, deliver a stable capacity of 150 mAh g-1 at 1 A g-1 over 5000 cycles. Even at an ultrahigh charge-discharge rate of 8 A g-1 , a high reversible capacity of 97 mAh g-1 is still achieved. By means of kinetic analysis, it is demonstrated that the larger ratio of surface Faradaic reactions of Nb2 O5 at high rates is the major factor to achieve excellent rate performance. The prolonged cycle durability and excellent rate performance endows T-Nb2 O5 /CNFs with potentials as anode materials for sodium-ion batteries. PMID- 29024475 TI - Bioengineered lungs generated from human iPSCs-derived epithelial cells on native extracellular matrix. AB - The development of an alternative source for donor lungs would change the paradigm of lung transplantation. Recent studies have demonstrated the potential feasibility of using decellularized lungs as scaffolds for lung tissue regeneration and subsequent implantation. However, finding a reliable cell source and the ability to scale up for recellularization of the lung scaffold still remain significant challenges. To explore the possibility of regeneration of human lung tissue from stem cells in vitro, populations of lung progenitor cells were generated from human iPSCs. To explore the feasibility of producing engineered lungs from stem cells, we repopulated decellularized human lung and rat lungs with iPSC-derived epithelial progenitor cells. The iPSCs-derived epithelial progenitor cells lined the decellularized human lung and expressed most of the epithelial markers when were cultured in a lung bioreactor system. In decellularized rat lungs, these human-derived cells attach and proliferate in a manner similar to what was observed in the decellularized human lung. Our results suggest that repopulation of lung matrix with iPSC-derived lung epithelial cells may be a viable strategy for human lung regeneration and represents an important early step toward translation of this technology. PMID- 29024478 TI - High Relaxivity Gadolinium-Polydopamine Nanoparticles. AB - This study reports the preparation of a series of gadolinium-polydopamine nanoparticles (GdPD-NPs) with tunable metal loadings. GdPD-NPs are analyzed by nuclear magnetic relaxation dispersion and with a 7-tesla (T) magnetic resonance imaging (MRI) scanner. A relaxivity of 75 and 10.3 mM-1 s-1 at 1.4 and 7 T is observed, respectively. Furthermore, superconducting quantum interference device magnetometry is used to study intraparticle magnetic interactions and determine the GdPD-NPs consist of isolated metal ions even at maximum metal loadings. From these data, it is concluded that the observed high relaxivities arise from a high hydration state of the Gd(III) at the particle surface, fast rate of water exchange, and negligible antiferromagnetic coupling between Gd(III) centers throughout the particles. This study highlights design parameters and a robust synthetic approach that aid in the development of this scaffold for T1 -weighted, high relaxivity MRI contrast agents. PMID- 29024479 TI - Partite hallux sesamoid bones: Relationship with sesamoid bones at other metatarsophalangeal joints. AB - Partite hallux sesamoids are clinically meaningful but their association with other sesamoids is not clear. The objective was to relate the prevalence of the partite hallux sesamoid bones to sesamoid bones at other metatarsophalangeal (MTP) joints. We conducted a retrospective review of plain radiographs of 7946 adult feet between November 2005 and September 2012 to identify partite hallux sesamoids and sesamoids at other MTP joints. Coexistence patterns of the partition and extra sesamoids were studied. Presence or absence of sesamoids at other MTP joints as well as sex and laterality were compared between the feet with and without partite hallux sesamoids using Pearson Chi-square test. Association between age and partition was evaluated using Spearman's correlation coefficient. Overall partite prevalence rate is 6.82%, and coexistence with extra MTP sesamoids was 0.42%. One pattern was partition in hallux sesamoid only, and 4 patterns were coexistence with extra sesamoids. The prevalence rates of partite hallux sesamoids were 7.17% (508/7081) and 3.93% (34/865) in feet without and with extra sesamoids, respectively. The relative risk of 1.889 (95% CI, 1.325 2.693) of partite hallux sesamoids was noted in feet without than with extra sesamoids (Chi2 = 12.759, P < 0.001). A negative correlation between age and distribution of partition was identified (r = -0.061, P < 0.001). Partition of hallux sesamoid bones is a developmental variation, it can coexist with sesamoids at other MTP joints following a certain pattern; and its prevalence rate is almost twice higher in feet without than with extra MTP sesamoids. Anat Rec, 2017. (c) 2017 Wiley Periodicals, Inc. Anat Rec, 301:34-38, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024480 TI - Osmotic gradient ektacytometry: A valuable screening test for hereditary spherocytosis and other red blood cell membrane disorders. AB - INTRODUCTION: New generation osmotic gradient ektacytometry has become a powerful procedure for measuring red blood cell deformability and therefore for the diagnosis of red blood cell membrane disorders. In this study, we aim to provide further support to the usefulness of osmotic gradient ektacytometry for the differential diagnosis of hereditary spherocytosis by measuring the optimal cutoff values of the parameters provided by this technique. METHODS: A total of 65 cases of hereditary spherocytosis, 7 hereditary elliptocytosis, 3 hereditary xerocytosis, and 171 normal controls were analyzed with osmotic gradient ektacytometry in addition to the routine red blood cell laboratory techniques. The most robust osmoscan parameters for hereditary spherocytosis diagnosis were determined using receiver operating characteristic curve analysis. RESULTS: The best diagnostic criteria for hereditary spherocytosis were the combination of decreased minimal elongation index up to 3% and increased minimal osmolality point up to 5.2% when compared to the mean of controls. Using this established criterion, osmotic gradient ektacytometry reported a sensitivity of 93.85% and a specificity of 98.38% for the diagnosis of hereditary spherocytosis. CONCLUSION: Osmotic gradient ektacytometry is an effective diagnostic test for hereditary spherocytosis and enables its differential diagnosis with other red blood cell membrane diseases based on specific pathology profiles. PMID- 29024483 TI - Neuromodulation: The "Not-so-Hidden" Cure for the Opioid Crisis. PMID- 29024481 TI - Late leakage after anterior resection: a defunctioning stoma alters the clinical course of anastomotic leakage. AB - AIM: Anastomotic leakage (AL) is common after anterior resection (AR). Long term clinical outcomes of AL including late presenting leakage (LL) are not well studied. This study was undertaken to assess clinical features of LL with respect to incidence, association with predisposing factors and need for re-intervention. METHODS: The Swedish Colorectal Cancer Registry (SCRCR) was explored for AL cases after AR for rectal cancer in patients operated in the south of Sweden from 1 January 2001 to 31 December 2011. Demographic data, surgical technical details, number of postoperative days (POD) until diagnosis of AL, presenting symptoms, methods of diagnosis and treatment were retrieved from medical records. LL was defined according to different cut-offs as leakages occurring after hospital discharge (LLAHD), after 30 POD (LL >= POD 30) and after 90 POD (LL >= POD 90). RESULTS: In total, 1442 patients were operated on with AR of whom 144 cases of AL (10%) were identified. Median time from operation to follow-up was 87 months (range 21-162). LLAHD, LL >= POD 30 and LL >= POD 90 were present in 51%, 24% and 9% respectively. All categories of LL were associated with a defunctioning stoma. Relaparotomy was significantly less often employed in LLAHD, but not in other categories of LL. CONCLUSION: LL constitutes a substantial portion of all AL after AR for rectal cancer. The large proportion of LLAHD calls for awareness in the outpatient setting. PMID- 29024484 TI - Through the Looking Glass: Specialty Influence on SCS Outcomes. PMID- 29024485 TI - Placenta-Derived Adherent Stromal Cells Improve Diabetes Mellitus-Associated Left Ventricular Diastolic Performance. AB - Left ventricular (LV) diastolic dysfunction is among others attributed to cardiomyocyte stiffness. Mesenchymal stromal cells (MSC) have cardiac-protective properties. We explored whether intravenous (i.v.) application of PLacenta eXpanded (PLX) MSC-like cells (PLX) improves LV diastolic relaxation in streptozotocin (STZ)-induced diabetic mice and investigated underlying mechanisms. Diabetes mellitus was induced by STZ application (50 mg/kg body weight) during five subsequent days. One week after the first STZ injection, PLX or saline were i.v. applied. Two weeks later, mice were hemodynamically characterized and sacrificed. At this early stage of diabetic cardiomyopathy with low-grade inflammation and no cardiac fibrosis, PLX reduced LV vascular cell adhesion molecule-1, transforming growth factor-beta1, and interferon-gamma mRNA expression, induced the percentage of circulating regulatory T cells, and decreased the splenic pro-fibrotic potential in STZ mice. STZ + PLX mice exhibited higher LV vascular endothelial growth factor mRNA expression and arteriole density versus STZ mice. In vitro, hyperglycemic PLX conditioned medium restored the hyperglycemia-impaired tube formation and adhesion capacity of human umbelical vein endothelial cells (HUVEC) via increasing nitric oxide (NO) bioavailability. PLX further induced the diabetes-downregulated activity of the NO downstream protein kinase G, as well as of protein kinase A, in STZ mice, which was associated with a raise in phosphorylation of the titin isoforms N2BA and N2B. Concomitantly, the passive force was lower in single isolated cardiomyocytes from STZ + PLX versus from STZ mice, which led to an improvement of LV diastolic relaxation. We conclude that i.v. PLX injection improves diabetes mellitus-associated diastolic performance via decreasing cardiomyocyte stiffness. Stem Cells Translational Medicine 2017;6:2135-2145. PMID- 29024486 TI - Development of locus specific sub-clone separation by fluorescence in situ hybridization in suspension in chronic lymphocytic leukemia. AB - Intra-tumor genetic heterogeneity is a hallmark of cancer. The ability to monitor and analyze these sub-clonal cell populations can be considered key to successful treatment, particularly in the modern era of targeted therapies. Although advances in sequencing technologies have significantly improved our ability to analyze the mutational landscape of tumors, this utility is reduced when considering small, but clinically significant sub-clones, that is, those representing <10% of the tumor burden. We have developed a high-throughput method that utilizes a 17-probe labeled bacterial artificial chromosome contig to quantify sub-clonal populations of cells based on deletion of a single locus. Chronic lymphocytic leukemia (CLL) cells harboring deletion of the short arm of chromosome 17 (del17p), an important prognostic marker for CLL were used to demonstrate the technique. Sub-clones of del17p cells were quantified and isolated from heterogeneous CLL populations using fluorescence in situ hybridization in suspension (FISH-IS) and the locus specific probe set. Using the combination of FISH-IS with the locus-specific probe set enables automated analysis of tens of thousands of cells, accurately quantifying and isolating cells carrying a del17p. Based on the fluorescence intensity of 17p probes, 17p (TP53) deleted cells were identified and sorted using flow cytometric techniques, and enrichment was demonstrated using single nucleotide polymorphism analysis. The ability to separate sub-clones of cells based on genetic heterogeneity, independent of the clone size, highlights the potential application of this method not only in the diagnostic and prognostic setting, but also as an unbiased approach to enable further detailed genetic analysis of the sub-clone with deep sequencing approaches. (c) 2017 International Society for Advancement of Cytometry. PMID- 29024488 TI - Maternal Use of Weight Loss Products and the Risk of Neural Tube Defects in Offspring: A Systematic Literature Review. AB - BACKGROUND: Several studies have assessed potential associations between use of weight loss products in the periconceptional period and neural tube defects (NTDs). However, the individual studies are inconclusive and there has not been a systematic review of this literature. METHODS: We conducted a systematic search, using Ovid MEDLINE and PubMed, to identify studies that evaluated the association between products used for weight loss and the risk of NTDs. Because many studies of birth defects only evaluate a composite birth defect outcome, we evaluated studies that defined the outcome as "any major birth defect" or as NTDs. We abstracted data on study design, exposure definition, outcome definition, covariates and effect size estimates from each article that met our inclusion criteria. For studies that evaluated a composite birth defect outcome, we also abstracted the number of NTD cases included in the composite outcome. We used a modified version of the Newcastle-Ottawa Scale to assess the quality of each article. RESULTS: We screened 865 citations and identified nine articles that met our inclusion criteria. The majority of studies reported positive associations between maternal use of weight loss products and birth defects (overall and NTDs). However, there were few significant associations and there was considerable heterogeneity in the specific exposures assessed across the nine studies. CONCLUSION: Our systematic review of weight loss products and NTDs indicates that the literature on this topic is sparse. Because several studies reported modest, positive associations between risk and use of weight loss products, additional studies are warranted. Birth Defects Research 110:48-55, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024487 TI - Controlling the Release of Small, Bioactive Proteins via Dual Mechanisms with Therapeutic Potential. AB - Injectable delivery systems that respond to biologically relevant stimuli present an attractive strategy for tailorable drug release. Here, the design and synthesis of unique polymers are reported for the creation of hydrogels that are formed in situ and degrade in response to clinically relevant endogenous and exogenous stimuli, specifically reducing microenvironments and externally applied light. Hydrogels are formed with polyethylene glycol and heparin-based polymers using a Michael-type addition reaction. The resulting hydrogels are investigated for the local controlled release of low molecular weight proteins (e.g., growth factors and cytokines), which are of interest for regulating various cellular functions and fates in vivo yet remain difficult to deliver. Incorporation of reduction-sensitive linkages and light-degradable linkages affords significant changes in the release profiles of fibroblast growth factor-2 (FGF-2) in the presence of the reducing agent glutathione or light, respectively. The bioactivity of the released FGF-2 is comparable to pristine FGF-2, indicating the ability of these hydrogels to retain the bioactivity of cargo molecules during encapsulation and release. Further, in vivo studies demonstrate degradation mediated release of FGF-2. Overall, our studies demonstrate the potential of these unique stimuli-responsive chemistries for controlling the local release of low molecular weight proteins in response to clinically relevant stimuli. PMID- 29024489 TI - A novel combination regimen with intense focused ultrasound and pressure- and dose-controlled transcutaneous pneumatic injection of hypertonic glucose solution for lifting and tightening of the aging face. AB - BACKGROUND: Intense focused ultrasound (IFUS) has demonstrated moderate efficacy for facial laxity of the aging face. Pressure- and dose-controlled transcutaneous pneumatic injections of hypertonic glucose solution (TPIG) are a minimally invasive way to deliver solution into the skin for therapeutic purposes. Recently, its application around temporal areas is known to exert early-onset lifting effects with facial contour rejuvenation. AIMS: We sought to evaluate the safety and efficacy of this novel combination regimen with IFUS and TPIG for lifting and tightening of aging face. PATIENTS AND METHODS: Twenty-two Korean subjects with mild-to-moderate facial skin laxity were evaluated after receiving a sequential single session of IFUS and TPIG treatments. Dermatologists' objective assessments for general appearance, and mid- and low faces based on photographic images were performed at 1- and 12-week post-treatment follow-ups. Patients' subjective assessments were also conducted. Skin biopsies were taken at baseline and the last visit. RESULTS: Among 22 subjects, twenty (91%) demonstrated improvement after 12-week follow-up. We also observed similarly improved state just after 1 week of treatments (82%: 18/22). Specifically, improvement of the mid-face was evident from the first week, while the progress of the low face improvement was observed at the twelve week. Subjective assessments paralleled these findings. No seriously adverse effect was observed during procedures. Histologic evaluation showed greater dermal collagen fibers throughout the dermis after treatments. CONCLUSION: Combination treatment with IFUS and TPIG has beneficial effects for skin lifting and tightening with early onset time. PMID- 29024490 TI - Categorization of Abuse Potential-Related Adverse Events. AB - All drugs with central nervous system activity must undergo an assessment of their abuse potential, and these data must be included in a New Drug Application. Part of this assessment is an analysis of treatment-emergent adverse events that occur during clinical development. Using an iterative consensus strategy, we evaluated and grouped an available list of 213 flag terms for abuse potential from the Food and Drug Administration, into categories and assessed the relevance of the terms to primary abuse behavior. Consequences of abuse (28%) were most common, followed by diagnoses (19%), altered thoughts (18%), cognitive effects (10%), stimulation/anxiety (9%), central nervous system depression (9%), and mood elevation (1%). The vast majority of abuse potential-related terms reflects treatment-emergent adverse events, not behaviorally motivating features to abuse a drug. Almost 30% of terms are related to altered perception or altered cognition. These are serious consequences in the context of abusable psychoactive drugs. Only 20% of terms were rated as definitely or probably reflecting intrinsic behavioral reinforcing potential, and 30% were assessed as having weak predictive utility. Sponsors need to have an explicit strategy for collecting, interpreting, and analyzing abuse-related adverse event information completely and accurately. PMID- 29024491 TI - Surgical morbidity and mortality in patients after microvascular reconstruction for head and neck cancer. AB - OBJECTIVES: The aim was to evaluate the importance of clinical factors in the prediction of postoperative complications in patients with microvascular reconstruction for head and neck squamous cell cancer (HNSCC). DESIGN: A retrospective review of case notes was performed. SETTING: Patients treated at a single institute. PARTICIPANTS: This study included 259 patients with HNSCC treated with radical surgery and microvascular reconstruction between 1993 and 2014. MAIN OUTCOME MEASURES: We allocated the patients to three groups using a preoperative comorbidity score based on risk factors: group A (>=3 risk factors, n = 16), group B (2 risk factors, n = 49) and group C (0 or 1 risk factor, n = 194). RESULTS: Surgical mortality in this cohort was 1.9% (5 of 259 patients). The preoperative comorbidity score was associated with surgical mortality (P < .001). Pharyngocutaneous fistula (P = .001) and flap compromise (P = .023) were more frequent as preoperative comorbidity score increased. Preoperative comorbidity score (P < .001), advanced age (P = .007), advanced pathologic T stage (P = .028), advanced pathologic N stage (P = .005), preoperative (chemo) radiotherapy (P < .001), history of cardiovascular disease (P = .015) and pulmonary disease (P = .007), and diabetes (P < .001) had significant adverse effects on 5 year disease-specific survival (DSS) in a univariate analysis. The 5 DSS rates of groups A, B and C were 30%, 37% and 70%, respectively. Multivariate analysis showed that preoperative comorbidity score was significantly correlated with 5 year DSS (hazard ratio [HR], 3.56; 95% confidence interval [CI], 1.81 6.99; P < .001 for group A and HR, 1.91; 95% CI, 1.15-3.18; P = .013 for group B compared with group C). CONCLUSION: Patients with a high preoperative comorbidity score have an increased risk of surgical mortality and morbidity after microvascular reconstruction for HNSCC. PMID- 29024492 TI - Experimental infection of clade 1.1.2 (H5N1), clade 2.3.2.1c (H5N1) and clade 2.3.4.4 (H5N6) highly pathogenic avian influenza viruses in dogs. AB - Since the emergence of highly pathogenic avian influenza (HPAI) H5N1 in Asia, the haemagglutinin (HA) gene of this virus lineage has continued to evolve in avian populations, and H5N1 lineage viruses now circulate concurrently worldwide. Dogs may act as an intermediate host, increasing the potential for zoonotic transmission of influenza viruses. Virus transmission and pathologic changes in HPAI clade 1.1.2 (H5N1)-, 2.3.2.1c (H5N1)- and 2.3.4.4 (H5N6)-infected dogs were investigated. Mild respiratory signs and antibody response were shown in dogs intranasally infected with the viruses. Lung histopathology showed lesions that were associated with moderate interstitial pneumonia in the infected dogs. In this study, HPAI H5N6 virus replication in dogs was demonstrated for the first time. Dogs have been suspected as a "mixing vessel" for reassortments between avian and human influenza viruses to occur. The replication of these three subtypes of the H5 lineage of HPAI viruses in dogs suggests that dogs could serve as intermediate hosts for avian-human influenza virus reassortment if they are also co-infected with human influenza viruses. PMID- 29024494 TI - Extensive hyperpigmentation of the face in a Filipina. PMID- 29024493 TI - Pharmacokinetics and Pharmacodynamics of Meloxicam in East Asian Populations: The Role of Ethnicity on Drug Response. AB - We aimed to reanalyze the differences in the pharmacokinetics (PKs) of meloxicam in East Asian populations based on a population approach using previously published data and to investigate the factors found in population PK analysis that affect the pharmacodynamics (PDs) of meloxicam. Population PK analysis was performed in 119 healthy male subjects (30 Japanese, 30 Chinese, 29 Korean, and 30 white) under strictly controlled trial conditions with regulated meals and a single lot of the drug. We found that CYP2C9 genotype and lean body mass were statistically significant predictors of clearance and volume of distribution, respectively. A statistical significant difference in the PK parameters between ethnic groups could not be identified. Simulations using PK/PD models showed that CYP2C9 genotype is the factor that affects the PDs of meloxicam. The genetic polymorphisms highlighted in this study would be beneficial for conducting clinical trials in East Asians with similar genetic backgrounds. PMID- 29024495 TI - Differences in the neovascular potential of thymus versus subcutaneous adipose derived stem cells from patients with myocardial ischaemia. AB - Adipose tissue-derived multipotent mesenchymal cells (ASCs) participate in the information of blood vessels under hypoxic conditions. It is probable that the susceptibility of ASCs to the influence of age and ageing-associated pathologies compromises their therapeutic effectiveness depending on the adipose tissue depot. Our aim was to examine the neovascular potential under hypoxic conditions of ASCs-derived from thymic (thymASCs) and subcutaneous (subASCs) adipose tissue from 39 subjects with and without type 2 diabetes mellitus (T2DM) and of different ages who were undergoing coronary bypass surgery. We confirmed a significant decrease in the percentage of CD34+ CD31- CD45- subASCs in the cell yield of subASCs and in the survival of cultured endothelial cells in the medium conditioned by the hypox-subASCs with increasing patient age, which was not observed in thymASCs. Whereas the length of the tubules generated by hypox subASCs tended to correlate negatively with patient age, tubule formation capacity of the hypoxic thymASCs increased significantly. Compared with subASCs, thymASCs from subjects over age 65 and without T2DM showed higher cell yield, tubule formation capacity, vascular endothelial growth factor secretion levels, and ability to promote endothelial cell survival in their conditioned medium. Deterioration in subASCs neovascular potential relative to thymASCs derived from these subjects was accompanied by higher expression levels of NOX4 mRNA and fibrotic proteins. Our results indicate that thymASCs from patients over age 65 and without T2DM have a higher angiogenic potential than those from the other patient groups, suggesting they may be a good candidate for angiogenic therapy in subjects undergoing coronary bypass surgery. PMID- 29024496 TI - Higher Levels of Cystatin C in HIV/AIDS Patients with Metabolic Syndrome. AB - Data about Cystatin-C levels in HIV-infected patients with metabolic syndrome (MetS) are still limited. Therefore, the aim of this study was to evaluate the possible correlations of serum levels of Cystatin-C in HIV/AIDS patients treated with combined antiretroviral therapy (cART) with or without MetS. This cross sectional study included 89 HIV/AIDS Caucasian patients receiving cART at the HIV/AIDS Centre Belgrade, Serbia, divided into two groups according to the presence of MetS. Cystatin-C and other biochemical parameters were measured using Cytokine-Array-I, Metabolic-Array-I and Metabolic-Array-II, at the Department of Clinical Biochemistry, Royal Free Hospital and University College London, UK. A linear regression model was performed to evaluate which clinical and laboratory variables had an independent effect on Cystatin-C levels in HIV/AIDS patients. There were 33 (37%) patients with MetS and 56 (63%) without MetS. Patients with and without MetS were homogenous for age, duration of cART, number of cART combinations and CD4+ T cell count. Statistically increased Cystatin-C levels were observed in HIV/AIDS patients with MetS (p = 0.017), when compared to patients without MetS. Data showed a positive correlation of Cystatin-C and C reactive protein (r = 0.349, p = 0.001). Using linear regression modelling, significant correlations were obtained between Cystatin-C and MetS in univariate analysis (p < 0.001). Cystatin-C levels were significantly higher in HIV/AIDS patients with MetS versus without MetS. Early assessment of MetS using Cystatin-C as a marker may ultimately help increase the lifespan of HIV/AIDS patients, as these patients appear to be at high risk of cardiovascular diseases. PMID- 29024497 TI - A mission-oriented approach to cancer in Europe: a joint mission/vision 2030. AB - By combining innovative prevention and treatment strategies in a sustainable state-of-the-art virtual European cancer centre/infrastructure, it will be possible by 2030 to achieve a long-term survival of 3 out of 4 cancer patients in countries with well-developed healthcare systems. Furthermore, the proposed concerted actions will pave the way to handling the economic and social inequalities in countries with less developed systems. These efforts will also ensure that in the long-run, science-driven and social innovations reach patients across the healthcare systems in Europe. PMID- 29024498 TI - Feasibility and efficiency of concurrent chemoradiotherapy with capecitabine and cisplatin versus radiotherapy alone for elderly patients with locally advanced esophageal squamous cell carcinoma: Experience of two centers. AB - BACKGROUND: The purpose of this retrospective study was to evaluate the feasibility and efficacy of definitive concurrent chemoradiotherapy (CCRT) with capecitabine and cisplatin for elderly patients with locally advanced esophageal squamous cell carcinoma. METHODS: A total of 90 patients were included from two different centers. Forty-nine patients were treated with CCRT consisting of capecitabine (850 mg/m2 , oral, twice a day for 1-14 days) and cisplatin (20 mg/m2 ) weekly during radiotherapy (RT). The remaining 41 patients were treated with RT alone. The overall response, overall survival, progression-free survival, and toxicity rates were recorded. RESULTS: Compared to the RT group (51.2%; P = 0.029), the overall response rate in the CCRT group (73.5%) was obviously higher. A complete response was achieved in 34.7% and 14.6% of patients in the CCRT and RT groups, respectively (P = 0.030). Median progression-free and median overall survival rates were significantly higher in the CCRT group (24.7 and 30.6 months; P < 0.05) compared to the RT group (16.6 and 18.7 months). Acute toxic effects were more severe in the CCRT group, but no significant difference in grade 3 or 4 acute toxicities was observed between the groups. CONCLUSION: Both CCRT with capecitabine and cisplatin and RT alone are feasible to treat elderly patients and yield a good performance status with locally advanced esophageal squamous cell carcinoma. CCRT improved the tumor response without increasing the side effects compared to RT alone. CCRT is recommended for patients over 65 with good performance status. PMID- 29024499 TI - Male partner involvement on initiation and sustainment of exclusive breastfeeding among HIV-infected post-partum women: Study protocol for a randomized controlled trial. AB - Exclusive Breastfeeding (EBF) among human immunodeficiency virus (HIV)-infected mothers is known to be associated with a sustained and significant reduction in HIV transmission and has the potential to reduce infant and under-five mortality. Research shows that EBF is not common in many HIV-endemic, resource-limited settings despite recommendations by the World Health Organization. Although evidence abounds that male partner involvement increases HIV testing and uptake and retention of prevention of mother-to-child transmission interventions, few studies have evaluated the impact of male partners' involvement and decision making on initiation, maintenance, and sustainment of EBF. We propose a comparative effectiveness trial of Men's Club as intervention group compared to the control group on initiation and sustainment of EBF. Men's Club will provide male partners of HIV-infected pregnant women one 5-hr interactive educational intervention to increase knowledge on EBF and explore barriers and facilitators of EBF and support. Additionally, participating male partners in the Men's Club as intervention group will receive weekly text message reminders during the first 6-week post-natal period to improve initiation and sustainment of EBF. Participants in the Men's Club as control group will receive only educational pamphlets. Primary outcomes are the differences in the rates of initiation and sustainment of EBF at 6 months between the two groups. Secondary outcomes are differences in male partner knowledge of infant feeding options and the intent to support EBF in the two groups. Understanding the role and impact of male partners on the EBF decision-making process will inform the development of effective and sustainable evidence-based interventions to support the initiation and sustainment of EBF. PMID- 29024500 TI - Tumor suppressive roles of eugenol in human lung cancer cells. AB - BACKGROUND: Eugenol, a natural compound available in Syzigium aromaticum (cloves), is exploited for various medicinal applications. Eugenol induces apoptosis and functions as an anti-cancer drug in several types of tumors. We investigated the tumor suppressive role and potential mechanisms of eugenol in human lung cancer cells. METHODS: Human embryonic lung fibroblast MRC-5 and lung cancer adenocarcinoma A549 cells were incubated with or without various concentrations of eugenol for 24 hours. Cell counting kit 8 and crystal violet staining assays were performed to detect cell viability. The cell migration and invasion abilities were also determined by wound healing and transwell assays. Finally, Western blotting assay was performed to examine the changes in lung cancer cell viability and invasion of downstream targets after treatment with eugenol. RESULTS: Eugenol could inhibit cell viability in lung cancer cells. Furthermore, eugenol obviously impaired cell migration and invasion. Finally, the expression levels of phosphate-Akt and MMP-2 in lung cancer cells were reduced after treatment with eugenol. CONCLUSION: Our results demonstrated the tumor suppressive roles of eugenol on lung cancer cell proliferation, migration, and invasion partially through the PI3K/Akt pathway and MMP activity in vitro. These results suggest eugenol as a potential chemotherapeutic agent against human lung cancer. PMID- 29024502 TI - Rhodium(III)-Catalyzed Directed C-H Amidation of N-Nitrosoanilines and Subsequent Formation of 1,2-Disubstituted Benzimidazoles. AB - An efficient rhodium-catalyzed direct C-H amidation of N-nitrosoanilines with 1,4,2-dioxazol-5-ones as amidating agents has been developed. This method featured mild reaction conditions, a wide substrate scope and satisfactory yields. Besides, the amidated products could be readily converted to pharmaceutically valuable 1,2-disubstituted benzimidazoles via an HCl-mediated deprotection/cyclization process in one pot. PMID- 29024501 TI - Hemodialysis Decreases the Concentration of Accumulated Plant Phenols in the Plasma of Patients on Maintenance Dialysis: Influence of Residual Renal Function. AB - Plant phenols may accumulate in end-stage kidney disease. The effect of hemodialysis on their plasma concentration remains poorly determined. Contingent on concentration, health-promoting or noxious effects occur; therefore, we assessed plasma concentration in hemodialyzed patients. In total, 21 maintenance hemodialyzed patients with diuresis < 500 mL per day (with oliguria), nine hemodialyzed patients with diuresis >= 500 mL per day (without oliguria) and 31 healthy volunteers were included. Nine phenolic acids were identified with high performance liquid chromatography and total polyphenol concentration was determined with the Folin-Ciocalteu method in pre- or post-hemodialysis plasma and pre- or intra-hemodialysis dialysate. The concentration of total polyphenols was 27% higher in pre-hemodialysis plasma than in that of controls (0.95 +/- 0.18 mmol/L [P < 0.0001]). The concentration of total polyphenols was higher in patients with oliguria (1.01 +/- 0.17) than in those without (0.84 +/- 0.13 mmol/L), despite the former having more intense hemodialysis (Kt/V 1.29 +/- 0.31 and 0.77 +/- 0.25, respectively). Pre-hemodialysis phenolic acid concentration in patients undergoing dialysis exceeded reference values by 3 to 34 times (3 hydroxyphenylacetic acid and vanillic acid, respectively), from 0.69 (dihydrocaffeic acid) to 169.3 MUmol/L (hippuric acid). The concentration of six phenolic acids (3-hydroxyhippuric, caffeic, dihydrocaffeic, hippuric, homovanillic, and vanillic acid) was 1.1 (homovanillic) to 11.3 (3 hydroxyhippuric) times higher in patients with oliguria than in those without. 4 hydroxyhippuric acid occurred more in the plasma of patients with oliguria than in those without oliguria. A single hemodialysis session decreased total polyphenol concentration by 16% and phenolic acids from 30% (caffeic) to 58% (vanillic and 3-hydroxyphenylacetic acid) and these compounds appeared in the dialysate. The percentage decrease (Delta%) of creatinine concentration correlated with the Delta% of total polyphenols and five phenolic acids (3 hydroxyphenylacetic, dihydrocaffeic, hippuric, homovanillic, and vanillic acid). Urea Delta% and Kt/V correlated only with the Delta% of homovanilic acid. The results demonstrate that phenols accumulate variably in hemodialyzed patients and are differently eliminated during hemodialysis. Residual renal function ensures a lower concentration of plasma phenols. PMID- 29024503 TI - Discovery of HLA-C*14:87, a novel HLA-C*14 variant, in a Taiwanese individual. AB - One nucleotide substitution at residue 526 of the HLA-C*14:15 results in a novel allele, HLA-C*14:87. PMID- 29024504 TI - High validity of cardiomyopathy diagnoses in western Sweden (1989-2009). AB - AIM: Hospital discharges with a diagnosis of cardiomyopathy have more than doubled in Sweden since 1987. We validated the cardiomyopathy diagnoses over this time period to investigate that the increase was real and not a result of improved recognition of the diagnosis and better diagnostic methods. METHODS AND RESULTS: Every fifth year from 1989 to 2009, records for all patients with a cardiomyopathy diagnosis were identified by searching the local registers in three hospitals in Vastra Gotaland, Sweden. The diagnoses were validated according to criteria defined by the European Society of Cardiology from 2008. The population comprised 611 cases with cardiomyopathy diagnoses [mean age 58.9 (SD 15.5) years, 68.2% male], divided into three major groups: dilated, hypertrophic, and other cardiomyopathies. Hypertrophic cardiomyopathy and hypertrophic obstructive cardiomyopathy were analysed as a group. Cardiomyopathies for which there were few cases, such as restrictive, arrhythmogenic right ventricular, left ventricular non-compaction, takotsubo, and peripartum cardiomyopathies, were analysed together and defined as 'other cardiomyopathies'. Relevant co-morbidities were registered. The use of echocardiography was 99.7%, of which 94.6% was complete echocardiography reports. The accuracy rates of the diagnoses dilated cardiomyopathy, hypertrophic cardiomyopathy, and other cardiomyopathies were 85.5%, 87.5%, and 100%, respectively, with no differences between the three hospitals or years studied; nor did the prevalence of co-morbidities differ. CONCLUSIONS: The accuracy rate of the cardiomyopathy diagnoses from in-hospital records from >600 patients in western Sweden during a 20 year period was 86.6%, with no significant trend over time, strengthening epidemiological findings that this is likely due to an actual increase in cardiomyopathy diagnoses rather than changes in coding practices. The use of echocardiography was high, and there was no significant difference in co morbidities during the study period. The accuracy rate of the cardiomyopathy diagnoses during the 20 year period was high. The use of diagnostic tools did not increase under the study period, and once cardiomyopathy diagnoses were suspected, echocardiography was performed in almost all cases. In this study, the occurrence of cardiomyopathy was increasing over time without significant increase of co-morbidity, supporting that an actual increase of cardiomyopathy has occurred. PMID- 29024505 TI - Photoelectrochemical Complexes of Fucoxanthin-Chlorophyll Protein for Bio Photovoltaic Conversion with a High Open-Circuit Photovoltage. AB - Open-circuit photovoltage (Voc ) is among the critical parameters for achieving an efficient light-to-charge conversion in existing solar photovoltaic devices. Natural photosynthesis exploits light-harvesting chlorophyll (Chl) protein complexes to transfer sunlight energy efficiently. We describe the exploitation of photosynthetic fucoxanthin-chlorophyll protein (FCP) complexes for realizing photoelectrochemical cells with a high Voc . An antenna-dependent photocurrent response and a Voc up to 0.72 V are observed and demonstrated in the bio photovoltaic devices fabricated with photosynthetic FCP complexes and TiO2 nanostructures. Such high Voc is determined by fucoxanthin in FCP complexes, and is rarely found in photoelectrochemical cells with other natural light-harvesting antenna. We think that the FCP-based bio-photovoltaic conversion will provide an opportunity to fabricate environmental benign photoelectrochemical cells with high Voc , and also help improve the understanding of the essential physics behind the light-to-charge conversion in photosynthetic complexes. PMID- 29024506 TI - A Near-Infrared Responsive Drug Sequential Release System for Better Eradicating Amyloid Aggregates. AB - Polyphenol compounds, such as curcumin, rutin, rifampicin, can inhibit Abeta aggregation and decrease reactive oxygen species (ROS), and have received much attention in recent years for Alzheimer's disease (AD) treatment. However, the excess metal ions in amyloid plaque can chelate to polyphenol compounds. It significantly declines the efficacy of polyphenol compounds when used in the clinic. In this report, a near-infrared (NIR)-caged upconversion responsive system UCNP@SiO2 @Cur/CQ is designed and synthesized to control drug sequential release by regulating NIR laser. When the system is irradiated at low intensity of the NIR laser, the caged metal chelator, clioquinol (CQ), is first released for removing free metal ions, which affects the efficacy of curcumin. Subsequently, the strongly caged curcumin is released with increasing the intensity of NIR light. In this way, the treatment efficacy of curcumin is improved. This NIR-caged drug release system can not only remove Cu2+ but also clean superfluous ROS. Therefore, developing controllable sequential drug releasing may provide clinical benefits of combination treatment of AD. To the best of our knowledge, this work reports for the first time that a sequentially controlled system can overcome the interference of metal ions on polyphenol compounds for AD treatment. PMID- 29024507 TI - Dietary patterns and semen quality: a systematic review and meta-analysis of observational studies. AB - A number of studies have examined the association between dietary patterns and semen quality, but the findings have been inconclusive. Herein, we conducted a systematic review and meta-analysis of observational studies to assess the association between dietary patterns and semen quality. PubMed, Cochrane library, Science direct, Scopus, Google Scholar, and ISI web of science databases were searched up to August 2016 for observational studies assessing the association between common dietary patterns and sperm quality markers. Data were pooled by the generic inverse variance method with random effects and expressed as mean differences with 95% confidence intervals (CIs). Heterogeneity was assessed (Cochrane Q-statistic) and quantified (I2 -statistic). The Newcastle-Ottawa Scale assessed study quality. Six eligible studies, involving 8207 participants, were included in our systematic review and meta-analysis. The pooled mean difference of sperm concentration for the healthy dietary pattern versus unhealthy dietary pattern intake was mean difference: 0.66; 95% CI, 0.305-1.016; p < 0.001. In comparison with those who had the highest adherence to healthy dietary pattern, individuals in the lowest adherence had significantly lower level of sperm concentration. However, no significant association was seen between eating patterns and other semen quality. Healthy dietary pattern seems to be associated with elevated sperm concentration level. Further longitudinal studies are needed to clarify this relationship. PMID- 29024508 TI - Importance of an Orchestrate Participation of each Individual Residue Present at a Catalytic Site. AB - GTP hydrolysis is indispensable to keep a living cell healthy. Nature has evolved so many enzymes to enhance the slow GTP hydrolysis. Rab GTPases are evolved to regulate vesicle trafficking. GTPase activating proteins (GAPs) accelerates their intrinsic slow GTP hydrolysis in order to maintain the sustainability between cellular events. Any malfunction/interference in this hydrolysis disrupts normal cellular events and causes severe diseases. In this study, GTP hydrolysis mechanism of Rab33B catalyzed by TBC-domain GAP protein Gyp1p has been decoded using extensive ab initio QM/MM metadynamics simulations. An organized coupled movement of individual residues present at the catalytic site is found to be the key factor for this reaction. An unorganized coupled movement leads the hydrolysis through very high energy pathways. This also reveals that the chemical transformations occurring at a catalytic site are residue specific. PMID- 29024509 TI - Adding a new separation dimension to MS and LC-MS: What is the utility of ion mobility spectrometry? AB - Ion mobility spectrometry is an analytical technique known for more than 100 years, which entails separating ions in the gas phase based on their size, shape, and charge. While ion mobility spectrometry alone can be useful for some applications (mostly security analysis for detecting certain classes of narcotics and explosives), it becomes even more powerful in combination with mass spectrometry and high-performance liquid chromatography. Indeed, the limited resolving power of ion mobility spectrometry alone can be tackled when combining this analytical strategy with mass spectrometry or liquid chromatography with mass spectrometry. Over the last few years, the hyphenation of ion mobility spectrometry to mass spectrometry or liquid chromatography with mass spectrometry has attracted more and more interest, with significant progresses in both technical advances and pioneering applications. This review describes the theoretical background, available technologies, and future capabilities of these techniques. It also highlights a wide range of applications, from small molecules (natural products, metabolites, glycans, lipids) to large biomolecules (proteins, protein complexes, biopharmaceuticals, oligonucleotides). PMID- 29024510 TI - Discovery of a Potentially New Subfamily of ELFV Dehydrogenases Effective for l Arginine Deamination by Enzyme Mining. AB - Discovery of enzymes with new functions is very important for de novo pathway design in synthetic biology. Amino acid dehydrogenases catalyze the oxidative deamination of an amino acid to its keto acid, which are widely used for the production of various valuable chemicals. To discover amino acid dehydrogenases with new functions, the authors reevaluate the sequence variability and substrate diversity of ELFV dehydrogenases superfamily in this study. With insights gained from structural and sequential studies, the authors develop an in silico strategy and discover a new category of proteins which are originally annotated as glutamate dehydrogenase but show altered conservation pattern of specificity determined motifs and completely different substrate spectrum. These proteins cannot catalyze the deamination of glutamate and other canonical amino acids except the positively charged amino acid l-arginine, representing a potentially new subfamily of ELFV dehydrogenases. The strategy utilized in this study can also be applied for discovering other useful enzymes. PMID- 29024511 TI - The Relationship Between Linear Osteological and Radiographic Measurements of the Human Calcaneus and Talus. AB - Plain radiographs of the foot are a common form of examination in individuals when medical evaluation is indicated. Their availability makes them useful for studying human variation where large sample sizes are crucial. Calcaneal and talar morphology are critical in the understanding of human foot form and function, but few studies have examined the accuracy of linear measurements of these bones taken from radiographs. If linear measurements are to be used in quantitative analysis, their accuracy must first be demonstrated. For this study, 54 human feet from amputated limbs were imaged in standard radiographic views and skeletonized. Selected linear measurements were made on each skeletonized talus and calcaneus. Corresponding landmarks were identified on the radiographic images and the distances between these points determined. Using the measurements taken from the physical bone, the accuracy of the radiographic measurements was evaluated employing paired Student's t-tests and correlation analysis. Most measurements were not significantly different (P >= 0.05). Overall, the sagittal plane measurements were correlated (r2 > 0.61-0.88, all P < 0.001) with the radiographic measurements; transverse plane measurements less so (r2 = 0.20-0.63, P < 0.001). These results demonstrate that measurements from radiographic images provide useful information concerning both the calcaneus and talus, indicating that radiographs of living individuals can be evaluated quantitatively and compared to osteology collections of modern humans. This information can be applied to the understanding of functional anatomy of the modern human foot, interpreting the hominin fossil pedal record, and establishing identification in forensic analysis. Anat Rec, 2017. (c) 2017 Wiley Periodicals, Inc. Anat Rec, 301:21-33, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024512 TI - The clinical performance of computer-assisted liquid-based cytology, primary hrHPV screening, and cotesting at a Turkish Tertiary Care Hospital. AB - BACKGROUND: We aimed to compare the performance of computer-assisted liquid-based cytology, primary high-risk human papillomavirus (hrHPV) screening, and cytology hrHPV cotesting with regards to the detection rate of cervical cancer precursor lesions. METHODS: A total of 22,653 computer-assisted liquid-based cytology specimens interpreted between 2013 and 2015 were included in the study. We compared the false-negative rates and sensitivities for computer-assisted liquid based cytology, primary hrHPV screening and cytology-hrHPV cotesting among women with normal and abnormal cytologies. Among 1,748 women who had undergone cotesting, 249 underwent follow-up biopsies. RESULTS: For detecting biopsy confirmed high-grade lesions, the sensitivities of using hrHPV, Pap tests, and cytology-hrHPV cotesting were 90.67%, 88%, and 98.67%, respectively, while the false-negative rates for hrHPV and Pap tests were 9.3% and 12%, respectively. The false negative rate for cotesting was only 1.3%. CONCLUSION: Based on the significantly high sensitivity and lower false-negative rates achieved, we conclude that the combination of cytologic screening with hrHPV testing is the best preferred strategy for detection of cervical precursor lesions in our country's conditions. PMID- 29024513 TI - Fine needle aspiration of meningioma: Cytologic features on ThinPrep. PMID- 29024514 TI - Therapeutic potential of hAECs for early Achilles tendon defect repair through regeneration. AB - Cell-based therapy holds great promise for tendon disorders, a widespread debilitating musculoskeletal condition. Even if the cell line remains to be defined, preliminary evidences have proven that amniotic-derived cells possess in vitro and in vivo a great tenogenic potential. This study investigated the efficacy of transplanted human amniotic epithelial cells (hAECs) by testing their early regenerative properties and mechanisms involved on a validated ovine Achilles tendon partial defect performed on 29 animals. The injured tendons treated with hAECs recovered rapidly, in 28 days, structural and biomechanical properties undertaking a programmed tissue regeneration, differently from the spontaneous healing tissues. hAECs remained viable within the host tendons establishing with the endogenous progenitor cells an active dialogue. Through the secretion of modulatory factors, hAECs inhibited the inflammatory cells infiltration, activated the M2 macrophage subpopulation early recruitment, and accelerated blood vessel as well as extracellular matrix remodelling. In parallel, some in situ differentiated hAECs displayed a tenocytelike phenotype. Both paracrine and direct hAECs stimulatory effects were confirmed analysing their genome profile before and after transplantation. The 49 human up-regulated transcripts recorded in transplanted hAECs belonged to tendon lineage differentiation (epithelial-mesenchymal transition, connective specific matrix components, and skeleton or muscle system development-related transcripts), as well as the in situ activation of paracrine signalling involved in inflammatory and immunomodulatory response. Altogether, these evidences support the hypothesis that hAECs are a practicable and efficient strategy for the acute treatment of tendinopathy, reinforcing the idea of a concrete use of amniotic epithelial cells towards the clinical practice. PMID- 29024515 TI - Health Behavior Change in Older Adults: Testing the Health Action Process Approach at the Inter- and Intraindividual Level. AB - BACKGROUND: Health behavior change theories usually claim to be universally and individually applicable. Most research has tested behavior change theories at the interindividual level and within young-to-middle-aged populations. However, associations at the interindividual level can differ substantially from associations at the intraindividual level. This study examines the applicability of the Health Action Process Approach (HAPA) at the inter- and the intraindividual level among older adults. METHODS: Two intensive longitudinal studies examined the HAPA model covering two different health behaviors and two different time spans: Study 1 (physical activity, N = 52 * 6 monthly observations) and Study 2 (medication adherence, N = 64 * 30 daily observations). The HAPA constructs (risk awareness, outcome expectancy, self-efficacy, intention, action planning, action control), and self-reported behaviors were assessed. RESULTS: Overall, at the interindividual level, results of both studies largely confirmed the associations specified by the HAPA. At the intraindividual level, results were less in line with the HAPA. Only action control emerged as consistent predictor of behavior. CONCLUSIONS: This study emphasises the importance of examining health behavior change theories at both, the inter- and the intraindividual level. PMID- 29024516 TI - Pro: Direct-acting antivirals are associated with occurrence and recurrence of hepatocellular carcinoma. PMID- 29024517 TI - Germ Cell Migration, Proliferation and Differentiation during Gonadal Morphogenesis in All-Female Japanese Flounder (Paralichthys Olivaceus). AB - In this study, all genetic female (XX) broods of Japanese flounder were produced artificially by mating the females with sex-reversed males. The proliferation and migration of primordial germ cells (PGCs), formation of ovary and oogenesis were described in detail. After hatching, around 20 individual PGCs migrated from the lateral to the dorsal of trunk region. At 15 days posthatching (dph), a part of PGCs were covered by a single layer somatic cells and formed the genital ridge. By 22 dph, the elongated gonadal primordia appeared under the ventral kidney, where the PGCs were totally enclosed by somatic cells. During the process of migration, PGCs were presumed to be mitotically inactive. From 63 to 73 dph, somatic cells rearrangement resulted in the formation of a narrow crevice, which became deeper and formed ovarian lumen. However, at 52 dph, dramatic mitotic proliferation of germ cell occurred and germline nest formed before the appearance of ovarian lumen. The onset of intensive germ cell proliferation and appearance of cell nests could be accepted as a criterion of initial ovarian differentiation. Then germ cells and somatic epithelial cells were gradually delimited by basement membrane and formed the germinal epithelium. In this period, results from in situ hybridization revealed that the early forkhead box L2 (pofoxl2) was expressed in somatic cells and oocytes in primary growth, which indicated the prefollicle cells formed. Then oogonia or oocytes, follicle cells, basement membrane, and theca cells composed a follicle complex. Finally, oocytes underwent meiosis and developed into to mature eggs. Anat Rec, 301:727-741, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024518 TI - CD5+ B lymphoproliferative disorder with subsequent development of plasma cell leukaemia: Diagnostic and aetiologic reasoning. AB - BACKGROUND: Plasma cell myeloma (PCM) has been sporadically reported to occur simultaneously or subsequently to mature B lymphoproliferative disorders (LPDs), predominantly chronic lymphocytic leukaemia (CLL). METHODS: We describe the clinical and laboratory findings of a 69-year-old male patient who developed plasma cell leukaemia (PCL) 8 years after an initial diagnosis of a low stage CD5+ B LPD and 3 years after treatment for LPD. RESULTS: The transition from a clinically indolent B LPD to an aggressive PCM was documented by bone marrow (BM) biopsy, while flow cytometric (FC) immunophenotyping conferred additional information by disclosing the co-existence of both disorders in BM and the presence of abnormal monotypic PCs in peripheral blood above PCL levels. Phenotypic findings suggested a discrete clonal origin of the two disorders. CONCLUSIONS: This report of PCL development in a patient with residual CD5+ B LPD, emphasizes the need for comprehensive diagnostic evaluation of such cases and scrutiny of their aetiological relationship, including FC immunophenotyping due to its high analytical sensitivity and multiparametric capacity compared to morphology or immunohistochemistry alone. (c) 2017 International Clinical Cytometry Society. PMID- 29024519 TI - Optimization of the use of a pharmaceutical grade xeno-free medium for in vitro expansion of human mesenchymal stem/stromal cells. AB - Human bone marrow-derived mesenchymal stem/stromal cells (hMSCs) are considered promising therapeutic agents in the field of cell therapy and regenerative medicine, mainly due to their relative facility to be isolated, multi differentiation potential, and immunomodulatory role. However, their application in clinics requires a crucial step of in vitro expansion. Most of the protocols for hMSCs in vitro culture use foetal bovine serum as medium supplement that, being from animal origin, presents several safety concerns and may initiate xenogeneic immune responses after cells transplantation. This work reports the optimization of a pharmaceutical-grade xeno-free strategy for hMSCs in vitro expansion based on the supplementation of basal medium with a pharmaceutical grade human plasma-derived supplement for cell culture (SCC) and 2 human growth factors (bFGF and TGFbeta1), plus a coating of human plasma fibronectin (Fn). After 4 weeks in culture, this strategy improves hMSCs expansion yield about 4.3 fold in comparison with foetal bovine serum supplementation and 4.5-fold compared with a commercially available xeno-free medium. hMSCs expanded in SCC-based formulation maintained their phenotype and differentiation capacity into osteogenic, adipogenic, and chondrogenic lineages, without alterations in cell karyotype. Overall, the SCC-based medium appears to be an excellent alternative for the xeno-free expansion of hMSCs as therapeutic agents for clinical applications. PMID- 29024520 TI - Allergen immunotherapy: exploring areas for further inquiry. AB - BACKGROUND: Allergy-related illness impacts millions of individuals worldwide. Our objectives were to characterize current trends of clinical trials research relating to allergen immunotherapy and to describe the landscape of allergen immunotherapy in National Institutes of Health (NIH)-supported research inquiry. METHODS: On ClinicalTrials.gov, the following terms were searched: allergen immunotherapy OR allergy immunotherapy. Variables, including completion status, dates, design, study population, funder, location, and allergen were recorded. The NIH Research Portfolio Online Reporting Tools (RePORTER) system was also used to gather relevant variables. RESULTS: A total of 372 clinical trials met inclusion criteria. The proportion of industry-funded clinical trials has declined over 15 years. There has been a slow decline in pollen allergy immunotherapy research, with an increase in both food and animal allergy immunotherapy research. Otolaryngologists comprised only 6.4% of clinical trials principal investigators (PIs). There was a total adjusted NIH funding of $74,986,125 for the 118 total funding years. CONCLUSION: Despite an immense interest in allergen immunotherapy, this analysis demonstrates that otolaryngologists represented a small proportion of PIs leading associated clinical trials and basic science inquiry. The proportion of trials with industry sponsorship has declined considerably in recent decades. These trends could help direct future resource allocation for allergen immunotherapy. PMID- 29024521 TI - Role of Peroxisome Proliferator-Activated Receptor (PPARgamma) in Metabolic Disorders in SGA with Catch-Up Growth. AB - OBJECTIVE: Abnormal fat metabolism is a major disorder in adults who were small for gestational age (SGA). Peroxisome prolferator-activated receptor (PPARgamma) participates in adipocyte differentiation and the regulation of lipid metabolism. This study explored the role of PPARgamma in the regulation of fat catch-up growth (CUG) and the lipid metabolism of SGA individuals. METHODS: The CUG-SGA rats were treated with pioglitazone. The weight of the visceral adipose tissue, serum lipid levels, and PPARgamma expression in the visceral adipose tissue were detected at 4, 8, and 12 weeks of age. RESULTS: The PPARgamma expression in the visceral adipose tissue in the CUG-SGA group was lower than that in the appropriate for gestational age (AGA) group at 4, 8, and 12 weeks (P < 0.05). The serum triglycerides in the CUG-SGA group were elevated compared with that in the AGA group at 4 and 12 weeks (P = 0.005; P = 0.037); however, they were significantly decreased after 8 weeks of pioglitazone intervention (P = 0.001). CONCLUSIONS: PPARgamma expression in the visceral adipose tissue was lower in SGA rats and may be related to the regulation of adipocyte differentiation. The early increased PPARgamma expression by pioglitazone might reduce serum triglycerides and decrease the CUG of the visceral adipose tissue in SGA. PMID- 29024523 TI - The Royal Australian and New Zealand College of Radiologists (RANZCR), 68th Annual Scientific Meeting, 19-22 October 2017, Perth, Australia. PMID- 29024522 TI - In vitro safety evaluation of human nasal epithelial cell monolayers exposed to carrageenan sinus wash. AB - BACKGROUND: Carrageenans have shown to reduce the viral load in nasal secretions and lower the incidence of secondary infections in children with common cold. Despite the widespread use of carrageenans in topical applications, the effect of carrageenans on the sinonasal epithelial barrier has not been elucidated. We investigate the effect of different carrageenans on the sinonasal epithelial barrier and inflammatory response in vitro. METHODS: Iota and Kappa carrageenan delivered in saline irrigation solutions applied to air-liquid interface (ALI) cultures of primary human nasal epithelial cells from chronic rhinosinusitis patients and controls. Epithelial barrier structure was assessed by measuring the transepithelial electrical resistance (TEER) and immunolocalization of F actin. Ciliary beat frequency (CBF), toxicity, and inflammatory response was studied. RESULTS: Kappa or Iota carrageenan in the different solutions was not toxic, did not have detrimental effects on epithelial barrier structure and CBF. Rather, application of Kappa carrageenan significantly increased TEER and suppressed interleukin 6 (IL-6) secretion in ALI cultures from CRS patients. CONCLUSION: Kappa or Iota carrageenan solution was safe and did not negatively affect epithelial barrier function. Kappa carrageenan increased TEER and decreased IL-6 production in CRS patients, indicating positive effects on epithelial barrier function in vitro. PMID- 29024525 TI - A novel HLA-B allele, HLA-B*35:348, was identified by sequencing-based typing. AB - HLA-B*35:348 has 1 nucleotide substitution, c.817G > C (GTG->CTG at codon 248) compared with B*35:01:01:01. PMID- 29024526 TI - Construction of Discrete Pentanuclear Platinum(II) Stacks with Extended Metal Metal Interactions by Using Phosphorescent Platinum(II) Tweezers. AB - Discrete pentanuclear PtII stacks were prepared by the host-guest adduct formation between multinuclear tweezer-type PtII complexes. The formation of the PtII stacks in solution was accompanied by color changes and the turning on of near-infrared emission resulting from Pt???Pt and pi-pi interactions. The X-ray crystal structure revealed the formation of a discrete 1:1 adduct, in which a linear stack of five PtII centers with extended Pt???Pt interactions was observed. Additional binding affinity and stability have been achieved through a multinuclear host-guest system. The binding behaviors can be fine-tuned by varying the spacer between the two PtII moieties in the guests. This work provides important insights for the construction of discrete higher-order supramolecular metal-ligand aggregates using a tweezer-directed approach. PMID- 29024527 TI - Sequence-Mandated, Distinct Assembly of Giant Molecules. AB - Although controlling the primary structure of synthetic polymers is itself a great challenge, the potential of sequence control for tailoring hierarchical structures remains to be exploited, especially in the creation of new and unconventional phases. A series of model amphiphilic chain-like giant molecules was designed and synthesized by interconnecting both hydrophobic and hydrophilic molecular nanoparticles in precisely defined sequence and composition to investigate their sequence-dependent phase structures. Not only compositional variation changed the self-assembled supramolecular phases, but also specific sequences induce unconventional phase formation, including Frank-Kasper phases. The formation mechanism was attributed to the conformational change driven by the collective hydrogen bonding and the sequence-mandated topology of the molecules. These results show that sequence control in synthetic polymers can have a dramatic impact on polymer properties and self-assembly. PMID- 29024528 TI - Photobiomodulation alters matrix protein activity in stressed fibroblast cells in vitro. AB - A balance is maintained between matrix synthesis and degradation, and a prolonged increase in matrix metalloproteinases (MMPs) affects healing. Photobiomodulation (PBM) speeds up healing and alters wound environment. The study aimed to determine changes in protein and gene expression of collagen type 1 (Col-I), MMP 3 and -9 and TIMP-1 in fibroblasts irradiated at 660 or 830 nm. Commercially purchased human skin fibroblast cells were modeled into five groups namely, normal, normal wounded, diabetic wounded, hypoxic wounded and diabetic hypoxic wounded. Control cells were sham irradiated. Laser irradiation was conducted at 660 or 830 nm (108/or 94 mW, 9.1 cm2 , 420/or 483 s) with 5 J/cm2 . Forty-eight hours post-irradiation, protein expression of TIMP-1, MMP-3, -9 and Col-I was determined by flow cytometry and immunofluorescence, and gene expression by real time RT-PCR. There was an increase in TIMP-1 and Col-I, and a decrease in MMP-3 and -9, as well as an alteration in mRNA expression of MMP3, MMP9, TIMP1 and COL1A1 in irradiated cells. Due to the responsiveness of the diabetic hypoxic wounded model, the findings propose this model as appropriate for wound healing studies and suggest that PBM promotes the remodeling phase of wound healing by decreasing matrix degradation and upregulating synthesis. PMID- 29024529 TI - Catalytic, Conductive Bipolar Membrane Interfaces through Layer-by-Layer Deposition for the Design of Membrane-Integrated Artificial Photosynthesis Systems. AB - In the presence of an electric field, bipolar membranes (BPMs) are capable of initiating water disassociation (WD) within the interfacial region, which can make water splitting for renewable energy in the presence of a pH gradient possible. In addition to WD catalytic efficiency, there is also the need for electronic conductivity in this region for membrane-integrated artificial photosynthesis (AP) systems. Graphene oxide (GO) was shown to catalyze WD and to be controllably reduced, which resulted in electronic conductivity. Layer-by layer (LbL) film deposition was employed to improve GO film uniformity in the interfacial region to enhance WD catalysis and, through the addition of a conducting polymer in the process, add electronic conductivity in a hybrid film. Three different deposition methods were tested to optimize conducting polymer synthesis with the oxidant in a metastable solution and to yield the best film properties. It was found that an approach that included substrate dipping in a solution containing the expected final monomer/oxidant ratio provided the most predictable film growth and smoothest films (by UV/Vis spectroscopy and atomic force microscopy/scanning electron microscopy, respectively), whereas dipping in excess oxidant or co-spraying the oxidant and monomer produced heterogeneous films. Optimized films were found to be electronically conductive and produced a membrane ohmic drop that was acceptable for AP applications. Films were integrated into the interfacial region of BPMs and revealed superior WD efficiency (>=1.4 V at 10 mA cm-2 ) for thinner films (<10 bilayers~100 nm) than for either the pure GO catalyst or conducting polymer individually, which indicated that there was a synergistic effect between these materials in the structure configured by the LbL method. PMID- 29024531 TI - Identification of a novel allele, HLA-A*02:189, in a Chinese Han individual. AB - HLA-A*02:189 differs from HLA-A*02:01:01:01 by a single substitution in exon 3 (846 G > T). PMID- 29024530 TI - FNA smears of pancreatic ductal adenocarcinoma are superior to formalin-fixed paraffin-embedded tissue as a source of DNA: Comparison of targeted KRAS amplification and genotyping in matched preresection and postresection samples. AB - BACKGROUND: The current study was conducted to compare DNA yield, including normalization to nuclear area, DNA amplification functionality, and detection of KRAS mutations between matched fine-needle aspiration (FNA) specimens and pancreatic resections diagnostic of pancreatic ductal adenocarcinoma. METHODS: A retrospective sample of 30 matched single FNA smears and macrodissected formalin fixed, paraffin-embedded (FFPE) curls (2 5-MUm curls) were compared by measuring the following: nuclear area (via digital image analysis), DNA yield (via NanoDrop spectrophotometry and Quantus fluorometry), and polymerase chain reaction threshold cycles for KRAS amplifications. Variants in KRAS codons 12/13 and 61 were detected by fluorescent melt curve analyses, followed by Sanger DNA sequencing. RESULTS: Despite a similar nuclear area, FNA smears yielded greater DNA per nuclear area via 2 DNA quantification methods. KRAS codon 12 mutations were detected in 23 of 30 FNA specimens (77%) compared with 17 of 30 matched FFPE specimens (57%), for a concordance rate of 74%. No KRAS codon 13 or 61 mutations were detected. CONCLUSIONS: FNA specimens are a more optimal source of DNA, and represent an important resource in the preresection and postresection molecular analysis of pancreatic ductal adenocarcinoma. Cancer Cytopathol 2017;125:838-47. (c) 2017 American Cancer Society. PMID- 29024532 TI - Group IVA Element (Si, Ge, Sn)-Based Alloying/Dealloying Anodes as Negative Electrodes for Full-Cell Lithium-Ion Batteries. AB - To satisfy the increasing energy demands of portable electronics, electric vehicles, and miniaturized energy storage devices, improvements to lithium-ion batteries (LIBs) are required to provide higher energy/power densities and longer cycle lives. Group IVA element (Si, Ge, Sn)-based alloying/dealloying anodes are promising candidates for use as electrodes in next-generation LIBs owing to their extremely high gravimetric and volumetric capacities, low working voltages, and natural abundances. However, due to the violent volume changes that occur during lithium-ion insertion/extraction and the formation of an unstable solid electrolyte interface, the use of Group IVA element-based anodes in commercial LIBs is still a great challenge. Evaluating the electrochemical performance of an anode in a full-cell configuration is a key step in investigating the possible application of the active material in LIBs. In this regard, the recent progress and important approaches to overcoming and alleviating the drawbacks of Group IVA element-based anode materials are reviewed, such as the severe volume variations during cycling and the relatively brittle electrode/electrolyte interface in full cell LIBs. Finally, perspectives and future challenges in achieving the practical application of Group IVA element-based anodes in high-energy and high-power density LIB systems are proposed. PMID- 29024533 TI - Global longitudinal strain corrected by RR interval is a superior predictor of all-cause mortality in patients with systolic heart failure and atrial fibrillation. AB - AIMS: Quantification of systolic function in patients with atrial fibrillation (AF) is challenging. A novel approach, based on RR interval correction, to counteract the varying heart cycle lengths in AF has recently been proposed. Whether this method is superior in patients with systolic heart failure (HFrEF) with AF remains unknown. This study investigates the prognostic value of RR interval-corrected peak global longitudinal strain {GLSc = GLS/[RR^(1/2)]} in relation to all-cause mortality in HFrEF patients displaying AF during echocardiographic examination. METHODS AND RESULTS: Echocardiograms from 151 patients with HFrEF and AF during examination were analysed offline. Peak global longitudinal strain (GLS) was averaged from 18 myocardial segments obtained from three apical views. GLS was indexed with the square root of the RR interval {GLSc = GLS/[RR^(1/2)]}. Endpoint was all-cause mortality. During a median follow-up of 2.7 years, 40 patients (26.5%) died. Neither uncorrected GLS (P = 0.056) nor left ventricular ejection fraction (P = 0.053) was significantly associated with all cause mortality. After RR^(1/2) indexation, GLSc became a significant predictor of all-cause mortality (hazard ratio 1.16, 95% confidence interval 1.02-1.22, P = 0.014, per %/s^(1/2) decrease). GLSc remained an independent predictor of mortality after multivariable adjustment (age, sex, mean heart rate, mean arterial blood pressure, left atrial volume index, and E/e') (hazard ratio 1.17, 95% confidence interval 1.05-1.31, P = 0.005 per %/s^(1/2) decrease). CONCLUSIONS: Decreasing {GLSc = GLS/[RR^(1/2)]}, but not uncorrected GLS nor left ventricular ejection fraction, was significantly associated with increased risk of all-cause mortality in HFrEF patients with AF and remained an independent predictor after multivariable adjustment. PMID- 29024534 TI - Rationalizing Promiscuity Cliffs. AB - Compound promiscuity can be viewed in different ways. We distinguish "bad" promiscuity resulting from chemical liabilities, nonspecific binding, or assay artifacts, from "good" promiscuity representing true multitarget activities. Investigating multitarget activities of small molecules is scientifically stimulating and therapeutically relevant. To better understand the molecular basis of multitarget activities, structure-promiscuity relationships (SPRs) are explored. For this purpose, "promiscuity cliffs" (PCs) have been introduced, which can be rationalized as an extension of the activity cliff (AC) concept. A PC is defined as a pair of structural analogues that are active against different numbers of targets (given a difference threshold). As discussed herein PCs frequently capture surprising SPRs and encode many experimentally testable hypotheses. PMID- 29024535 TI - Cyto-histological correlation of Xp11.2 translocation/TFE3 gene fusion associated renal cell carcinoma: Report of a case with review of literature. AB - The MiT family translocation renal cell carcinomas (RCCs) are relatively rare in comparison to the conventional RCC. The cytologic features overlap with conventional clear cell RCC and papillary RCCs, thereby making the diagnosis extremely challenging. Here, we describe a case of TFE3 translocation associated RCC in a 58-year-old patient, with emphasis on cytomorphologic features and clues toward this diagnostic entity. Correlating the cytohistologic findings and review of touch imprints revealed that presence of hyaline nodules resembling leisegang rings and psammoma bodies in cytologic smears from kidney tumors serve as an important clue in raising a suspicion for the diagnosis of MiT family translocation RCCs. PMID- 29024536 TI - Etanercept-Induced Lymphocytic Infiltration of Jessner-Kanof. PMID- 29024538 TI - Retinal pulse wave velocity measurement using spectral-domain optical coherence tomography. AB - The human eyes provide a natural window for noninvasive measurement of the pulse wave velocity (PWV) of small arteries. By measuring the retinal PWV, the stiffness of small arteries can be assessed, which may better detect early vascular diseases. Therefore, retinal PWV measurement has attracted increasing attention. In this study, a jump-scanning method was proposed for noninvasive measurement of retinal PWV using spectral-domain optical coherence tomography (SD OCT). The jump-scanning method uses the phase-resolved Doppler OCT to obtain the pulse shapes. To realize PWV measurement, the jump-scanning method extracts the transit time of the pulse wave from an original OCT scanning site to another through a transient jump. The measured retinal arterial PWV of a young human subject with normal blood pressure was in the order of 20 to 30 mm/s, which was consistent with previous studies. As a comparison, PWV of 50 mm/s was measured for a young human subject with prehypertension, which was in accordance with the finding of strong association between retinal PWV and blood pressure. In summary, it is believed the proposed jump-scanning method could benefit the research and diagnosis of vascular diseases through the window of human eyes. PMID- 29024539 TI - Unprecedented Sensitivity in a Probe for Monitoring Cathepsin B: Chemiluminescence Microscopy Cell-Imaging of a Natively Expressed Enzyme. AB - Until recently, chemiluminescence cell images could only be obtained using luciferase-activated probes. Moreover, chemiluminescence microscopy cell-imaging has not been demonstrated for natively expressed enzymes like cathepsin B. Herein, we describe the design, synthesis, and evaluation of the first chemiluminescence probe for the detection and imaging of cathepsin B. The probe activation mechanism relies on the release of a dioxetane intermediate, which undergoes chemiexcitation to emit green light with high efficiency under physiological conditions. Using the probe, we obtained clear images of cancerous leukemia and colon cells. This is the first demonstration of chemiluminescence cell images obtained by a probe for a natively expressed endogenous enzyme. We anticipate that the concept presented in this study will be broadly used to develop analogous probes for other important proteases relevant to biomolecular processes. PMID- 29024537 TI - Association between weight gain during adjuvant chemotherapy for early-stage breast cancer and survival outcomes. AB - Obese and overweight women have an increased risk of breast cancer and worse outcomes at the time of diagnosis. Women tend to gain weight after breast cancer diagnosis and during chemotherapy for early-stage disease, which may in turn increase risk for worse outcomes. We examined if weight gained during adjuvant chemotherapy was associated with worse survival outcomes. We queried our database for data on patients who received adjuvant third-generation chemotherapy for early-stage breast cancer. Univariate and multivariate analyses by Cox regression were performed for survival outcomes across three categories according to BMI variation from start to end of chemotherapy: >0.5 kg/m2 loss or gain and stable BMI (+/-0.5 kg/m2 ). We included 1998 patients in this study. Women over 50 years old and postmenopausal were more likely to lose weight during adjuvant chemotherapy, whereas women under 30 years old gained more weight (P < 0.001). At 1 year postchemotherapy, patients tended to return to their original weight (rho = -0.3, P < 0.001). On multivariate analysis, BMI increase of >0.5 kg/m2 compared to maintaining BMI was marginally associated with increased locoregional recurrence risk (HR: 2.53; 95% CI, 1.18-5.45; P = 0.017), adjusting for grade, stage, and radiation delivery. Weight variation during adjuvant chemotherapy for early-stage breast cancer may occur as both weight gain and weight loss in a balanced manner. Furthermore, this variation seems to be transient in nature and does not appear to significantly influence recurrence rates and overall survival. PMID- 29024541 TI - Development and Assessment of Fully Automated and Globally Transitive Geometric Morphometric Methods, With Application to a Biological Comparative Dataset With High Interspecific Variation. AB - Automated geometric morphometric methods are promising tools for shape analysis in comparative biology, improving researchers' abilities to quantify variation extensively (by permitting more specimens to be analyzed) and intensively (by characterizing shapes with greater fidelity). Although use of these methods has increased, published automated methods have some notable limitations: pairwise correspondences are frequently inaccurate and pairwise mappings are not globally consistent (i.e., they lack transitivity across the full sample). Here, we reassess the accuracy of published automated methods-cPDist (Boyer et al. Proc Nat Acad Sci 108 () 18221-18226) and auto3Dgm (Boyer et al.: Anat Rec 298 () 249 276)-and evaluate several modifications to these methods. We show that a substantial percentage of alignments and pairwise maps between specimens of dissimilar geometries were inaccurate in the study of Boyer et al. (Proc Nat Acad Sci 108 () 18221-18226), despite a taxonomically partitioned variance structure of continuous Procrustes distances. We show these inaccuracies are remedied using a globally informed methodology within a collection of shapes, rather than relying on pairwise comparisons (c.f. Boyer et al.: Anat Rec 298 () 249-276). Unfortunately, while global information generally enhances maps between dissimilar objects, it can degrade the quality of correspondences between similar objects due to the accumulation of numerical error. We explore a number of approaches to mitigate this degradation, quantify their performance, and compare the generated pairwise maps (and the shape space characterized by these maps) to a "ground truth" obtained from landmarks manually collected by geometric morphometricians. Novel methods both improve the quality of the pairwise correspondences relative to cPDist and achieve a taxonomic distinctiveness comparable to auto3Dgm. Anat Rec, 301:636-658, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024540 TI - Infections, resistance patterns and antibiotic use in patients at a regional cancer centre. AB - BACKGROUND: Infections and antibiotic resistance patterns in patients attending regional Australian cancer centres are poorly described. AIMS: To document patient characteristics, infection types, patterns of antibiotic resistance and outcomes in all patients with cancer requiring inpatient management for suspected infection at a regional Australian cancer centre. METHODS: We studied patients >=18 years of age who were admitted under the oncology unit at Albury Wodonga Health during a 12-month period and who had a microbiological test performed for suspected infection during their admission. Data were extracted retrospectively from electronic records and analysed through descriptive statistics. RESULTS: We identified 275 episodes of suspected infection occurring in 208 patients (M/F: 61%/39%). Median age was 68 years, solid tumour 76%, haematological malignancy 24%. A positive culture was obtained in 28% of cases: Gram-positive 48.5% and Gram-negative 51.5%. Drug resistant Pseudomonas aeruginosa was seen in 38% (5/13) of pseudomonas isolates, three times the rate seen in general hospital admissions. Extended spectrum beta lactamase was seen in 22% of Gram-negative isolates. Empiric IV antibiotic choice was guideline concordant in 61% of neutropenic fever (NF) (NF) presentations. Only 17% of NF presentations received antibiotics within the recommended hour of emergency department triage. The inpatient mortality rate was 3%. Fifty-seven percent of NF presentations satisfied Multinational Association of Supportive Care in Cancer risk index criteria for outpatient management. CONCLUSIONS: This is the first study of this type in patients with cancer at an Australian regional cancer centre. The study highlighted key areas for improvement in antibiotic prescription and control of antibiotic resistance at our institution. PMID- 29024542 TI - The Relative Bioavailability, Food Effect, and Drug Interaction With Omeprazole of Momelotinib Tablet Formulation in Healthy Subjects. AB - Momelotinib is a potent and selective small-molecule inhibitor of JAK1/2 that is under investigation for the treatment of myeloproliferative neoplasms. In a phase 1/2 study in myelofibrosis patients, once-daily dosing of a 300-mg momelotinib capsule was selected for further development based on a favorable benefit:risk profile. A tablet formulation was recently developed for further clinical evaluation. In this study, the relative bioavailability of the tablet formulation versus the initial capsule formulation and the effect of food and omeprazole on the pharmacokinetics of a single-dose momelotinib tablet were evaluated in healthy subjects. The momelotinib tablet, 200 mg, provided plasma exposure equivalent to the 300-mg capsule. Plasma exposure of momelotinib increased less than dose-proportionally from 100 to 800 mg. Food intake modestly increased Cmax (38% and 28% increase for low- and high-fat meals, respectively) and AUCinf (16% and 28% increase for low- and high-fat meals, respectively) for the momelotinib tablet. Omeprazole reduced the exposure of the momelotinib tablet by 36% for Cmax and 33% for AUCinf . Neither the food effect nor the omeprazole effect on momelotinib exposure was considered clinically meaningful because of the safety and efficacy profile of momelotinib. PMID- 29024543 TI - Squash cytology findings of subependymomas: A report of three cases and differential diagnosis. AB - Subependymomas are slowly growing glial tumors, corresponding to WHO grade I. Few descriptions of the cytologic features of this neoplasm are available. This study describes the cytologic features of three subependymomas, as well as their differential diagnosis based on cytology. Three men, aged 52, 56, and 63 years, presented with headache. Magnetic resonance imaging revealed a nodular intraventricular mass in all three patients. Intraoperative squash cytology specimens from the three intraventricular tumors showed nodular clusters with microcystic changes. Nuclei were round to oval in shape, but showed no evidence of severe nuclear atypia or mitoses. Histological examination showed features of subependymoma. Squash cytology findings, including nodular clusters, mild cellular atypia, microcystic changes, and mucoid material, are useful in the rapid intraoperative diagnosis of subependymoma. PMID- 29024544 TI - Squamous cell carcinoma in serous effusions: Avoiding pitfalls in this rare encounter. AB - BACKGROUND: With advent of personalized medicine, precise classification of malignant tumors becomes essential. Squamous cell carcinoma (SCC) is rarely found in serous effusions and has morphologic and immunohistochemical (IHC) overlap with other neoplasms. METHODS: 17-year review identified 49 fluids from 26 patients where SCC was recognized. RESULTS: SCC was more frequent in pleural fluid (84%) and rare in other effusions. Lung SCC was common (65%), followed by head and neck (16%), with other origins less represented. 19 samples were diagnosed positive for SCC, 12 were reported as non-small cell carcinoma and 13 were atypical/suspicious. Two were false negative (on hypocellular smears) and one was false positive (smear with small orangeophilic squamous-like cells). Two fluids were diagnosed as adenocarcinoma on smears and SCC on cellblocks after IHC. A chi-square test showed the correct diagnosis more often on cellblocks than smears (P-value = .0005) and all false positive, negative or misclassifications were done on cytology smears. Ber EP4 and MOC 31 immunostains were positive in most cases when performed, and the most specific immunostains for SCC were p63 and p40. Negative mucin stains were helpful. Cytology smears are imperfect tools in evaluation of body fluids and SCC can be misclassified as adenocarcinoma on smears alone. Orangeophilic cytoplasm can lead to false positive results. The most useful stains for identification were p40, p63, and mucicarmine. CONCLUSION: The combination of clinical history with cellblock preparation and appropriate IHCs is the best method to ensure a correct diagnosis. PMID- 29024545 TI - Role of substrate biomechanics in controlling (stem) cell fate: Implications in regenerative medicine. AB - Tissue-specific stem cells reside in a specialized environment known as niche. The niche plays a central role in the regulation of cell behaviour and, through the concerted action of soluble molecules, supportive somatic cells, and extracellular matrix components, directs stem cells to proliferate, differentiate, or remain quiescent. Great efforts have been done to decompose and separately analyse the contribution of these cues in the in vivo environment. Specifically, the mechanical properties of the extracellular matrix influence many aspects of cell behaviour, including self-renewal and differentiation. Deciphering the role of biomechanics could thereby provide important insights to control the stem cells responses in a more effective way with the aim to promote their therapeutic potential. In this review, we provide a wide overview of the effect that the microenvironment stiffness exerts on the control of cell behaviour with a particular focus on the induction of stem cells differentiation. We also describe the process of mechanotransduction and the molecular effectors involved. Finally, we critically discuss the potential involvement of tissue biomechanics in the design of novel tissue engineering strategies. PMID- 29024546 TI - Editorial: Bone Reading to Predict the Future. PMID- 29024547 TI - Equine Endometrial Explants Undergo Significant Degenerative Changes in Culture. AB - This study evaluated equine endometrial explants following 12, 24, and 48 hr in culture. Measurement of an indicator of cell death in explant supernatant, light microscopy, and gene expression of biomarkers of endometrial function and cellular stress were used to compare the effect of six different media on explant viability and morphology. Viability of explants was assessed indirectly through measuring LDH activity in the culture supernatant. Regardless of culture medium composition, a significant increase in LDH activity was observed within 12 hr of culture, indicating occurrence of cell damage. Morphological analysis through light microscopy revealed degenerative changes occurring within 12 hr and, after 48 hr, there is nearly complete loss of luminal and superficial glandular epithelium and diffuse detachment of deep glandular epithelium. Transcript abundance of prostaglandin-endoperoxide synthase 2 (PTGS2), estrogen receptor 1 (ESR1), and vascular endothelial growth factor (VEGF) was assessed as biomarkers of endometrial function. A marked increase in PTGS2 and VEGF expression occurred; ESR1 displayed more or less steady expression levels. Above-described changes were seen irrespective of cell culture medium used. The marked increase in expression in PTGS2 expression presents a limitation to using endometrial explants in the current culture system to study aspects of endometrial function such as the inflammatory response to insemination. Anat Rec, 2017. (c) 2017 Wiley Periodicals, Inc. Anat Rec, 301:148-153, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024548 TI - Electrochemical Behavior of Pyridinium and N-Methyl Pyridinium Cations in Aqueous Electrolytes for CO2 Reduction. AB - The electrochemical reduction of aqueous pyridinium and N-methyl pyridinium ions is investigated in the absence and presence of CO2 and electrolysis reaction products on glassy carbon, Au, and Pt electrodes are studied. Unlike pyridinium, N-methyl pyridinium is not electroactive at the Pt electrode. The electrochemical reduction of the two pyridine derivatives was found to be irreversible on glassy carbon. These results confirmed the essential role of the N-H bond of the pyridinium cation. In contrast, the electrochemical response of N-methyl pyridinium ion at the glassy carbon electrode suggests that a specific interaction occurs between the glassy carbon surface and the aromatic ring of the pyridinium derivative. For all electrodes, an enhancement of current was observed in the presence of CO2 . However, NMR spectroscopy of the solutions following electrolysis showed no formation of methanol or other possible byproducts of the reduction of CO2 in the presence of either pyridinium derivative ion. PMID- 29024549 TI - Weight gain during incarceration: systematic review and meta-analysis. AB - BACKGROUND: Existing evidence suggests that the prevalence of overweight and obesity among prisoners in different settings is high. Evaluating weight change during incarceration would allow for the investigation of whether the prison environment indeed contributes to unfavourable weight changes. OBJECTIVES: This study aimed to do a systematic review and a meta-analysis of existing evidence regarding weight change during incarceration. METHODS AND RESULTS: We conducted a systematic literature search by using five different online databases and included grey literature. A total of 16 studies, all conducted in developed countries, were identified. Weight change was computed in 11 of these studies and was self-reported in five studies. Only two studies included youth. In all but 1 of the 11 studies using actual assessment of weight change, there was an increase in body weight or body mass index on average or weight gain occurred among a significant proportion of participants. A meta-analysis of eight of these studies showed an average weight gain of 0.43 (95% CI 0.14, 0.72) lb/week. In all studies including perceived weight change, a high proportion (43% to 73%) of participants reported weight gain during incarceration. CONCLUSION: Health promotion activities within prisons should incorporate initiatives aimed at combating unhealthy weight developments. PMID- 29024550 TI - Biology of obesity and weight regain: Implications for clinical practice. AB - BACKGROUND AND PURPOSE: Weight loss is recommended as first-line therapy for many chronic illnesses, including obesity. Most patients who do successfully lose weight are unable to maintain their reduced weight. Recent research findings are reviewed and synthesized to explain the biology of obesity, adaptation to weight loss, and weight regain. FINDINGS: Weight regain is a common consequence of successful weight loss. Current obesity management strategies fail to take into consideration the underlying genetic and environmental causes of obesity. Available treatment modalities create a negative energy balance that stimulates integrated, persistent neurologic, endocrine, muscle, and adipose tissue adaptation to restore body weight and fat mass, independent of lifestyle changes. IMPLICATIONS FOR PRACTICE: Understanding the pathophysiology of obesity and weight loss alters nurse practitioners' responsibilities in caring for patients with obesity. They are responsible for expanding assessment and intervention strategies and offering people with obesity realistic expectations for weight loss and regain. They are obligated to explain weight regain when it occurs to minimize patient frustration. Nurse practitioners have the opportunity to adopt new approaches to patient advocacy, especially in the areas of public policy to improve diagnostic tools and adjunctive therapy for people with obesity. PMID- 29024551 TI - Weighing in on obesity management. PMID- 29024552 TI - Current pharmacotherapies for obesity: A practical perspective. AB - BACKGROUND AND PURPOSE: To review the currently available pharmacotherapies for obesity management with a particular focus on the United States. METHODS: Narrative review based on literature searches and the latest prescribing information (up to July 2017). CONCLUSIONS: Obesity pharmacotherapies may assist those individuals who have obesity, or overweight with comorbidities, who have failed to maintain weight loss with lifestyle modifications alone (caloric restriction and increased physical activity). Currently approved options in the United States include phentermine for short-term use and five obesity pharmacotherapies that can be used long-term (orlistat, lorcaserin, phentermine topiramate, naltrexone-bupropion, and liraglutide 3.0 mg). If the use of an obesity pharmacotherapy is indicated, treatment should be selected to provide the most appropriate option for each individual and their circumstances. Variables such as contraindications, individual comorbidities, patient choice, patient readiness to incorporate additional behavioral changes (e.g., alcohol prohibition), and cost should guide choices. IMPLICATIONS FOR PRACTICE: Each of the obesity pharmacotherapies has advantages and disadvantages that can help guide treatment choice. Those receiving treatment may also have individual preferences based on factors such as administration route, frequency of dosing, and/or safety profile. In addition, some options may be particularly appropriate for patients with common obesity-related complications such as depression or diabetes. PMID- 29024554 TI - Unmet needs in obesity management: From guidelines to clinic. AB - Despite the rather slow acceptance of obesity as a disease state, several obesity staging systems and weight-management guidelines have been developed and are in use, along with an ever-growing number of treatment options. Many primary care clinicians, including nurse practitioners (NPs), are at the forefront of clinical efforts to assist individuals with obesity, but face challenges due to lack of alignment and consensus among the various staging systems and guidelines. This is further complicated by shortfalls in clinical training related to obesity management and increasing complexities in reimbursement for obesity-related services. Unmet needs in the management of obesity thus stretch from guidelines to clinic. This article examines the principal barriers to effective management of individuals with obesity and considers how concerns might be overcome, with particular emphasis on the role of the NP. PMID- 29024555 TI - Concise Review: Tissue Engineering of Urinary Bladder; We Still Have a Long Way to Go? AB - Regenerative medicine is a new branch of medicine based on tissue engineering technology. This rapidly developing field of science offers revolutionary treatment strategy aimed at urinary bladder regeneration. Despite many promising announcements of experimental urinary bladder reconstruction, there has been a lack in commercialization of therapies based on current investigations. This is due to numerous obstacles that are slowly being identified and precisely overcome. The goal of this review is to present the current status of research on urinary bladder regeneration and highlight further challenges that need to be gradually addressed. We put an emphasis on expectations of urologists that are awaiting tissue engineering based solutions in clinical practice. This review also presents a detailed characteristic of obstacles on the road to successful urinary bladder regeneration from urological clinician perspective. A defined interdisciplinary approach might help to accelerate planning transitional research tissue engineering focused on urinary tracts. Stem Cells Translational Medicine 2017;6:2033-2043. PMID- 29024553 TI - Obesity: Risk factors, complications, and strategies for sustainable long-term weight management. AB - BACKGROUND AND PURPOSE: The aims of this article are to review the effects of obesity on health and well-being and the evidence indicating they can be ameliorated by weight loss, and consider weight-management strategies that may help patients achieve and maintain weight loss. METHODS: Narrative review based on literature searches of PubMed up to May 2016 with no date limits imposed. Search included terms such as "obesity," "overweight," "weight loss," "comorbidity," "diabetes," cardiovascular," "cancer," "depression," "management," and "intervention." CONCLUSIONS: Over one third of U.S. adults have obesity. Obesity is associated with a range of comorbidities, including diabetes, cardiovascular disease, obstructive sleep apnea, and cancer; however, modest weight loss in the 5%-10% range, and above, can significantly improve health related outcomes. Many individuals struggle to maintain weight loss, although strategies such as realistic goal-setting and increased consultation frequency can greatly improve the success of weight-management programs. Nurse practitioners have key roles in establishing weight-loss targets, providing motivation and support, and implementing weight-loss programs. IMPLICATIONS FOR PRACTICE: With their in-depth understanding of the research in the field of obesity and weight management, nurse practitioners are well placed to effect meaningful changes in weight-management strategies deployed in clinical practice. PMID- 29024556 TI - Synthesis of Metal Nanoparticles in Metal-Phenolic Networks: Catalytic and Antimicrobial Applications of Coated Textiles. AB - The synthesis of metal nanoparticle (NP)-coated textiles (nanotextiles) is achieved by a dipping process in water without toxic chemicals or complicated synthetic procedures. By taking advantage of the unique nature of tannic acid, metal-phenolic network-coated textiles serve as reducing and stabilizing sites for the generation of metal nanoparticles of controllable size. The textiles can be decorated with various metal nanoparticles, including palladium, silver, or gold, and exhibit properties derived from the presence of the metal nanoparticles, for example, catalytic activity in water (>96% over five cycles using palladium nanoparticles) and antibacterial activity against Gram-negative bacteria (inhibition of Escherichia coli using silver nanoparticles) that outperforms a commercial bandage. The reported strategy offers opportunities for the development of hybrid nanomaterials that may have application in fields outside of catalysis and antimicrobials, such as sensing and smart clothing. PMID- 29024557 TI - Body composition measurement in young children using quantitative magnetic resonance: a comparison with air displacement plethysmography. AB - BACKGROUND: Quantitative magnetic resonance (QMR) has been increasingly used to measure human body composition, but its use and validation in children is limited. OBJECTIVE: We compared body composition measurement by QMR and air displacement plethysmography (ADP) in preschool children from Singapore's multi ethnic Asian population (n = 152; mean +/- SD age: 5.0 +/- 0.1 years). METHODS: Agreements between QMR-based and ADP-based fat mass and fat mass index (FMI) were assessed using intraclass correlation coefficient (ICC), reduced major axis regression and Bland-Altman plot analyses. Analyses were stratified for the child's sex. RESULTS: Substantial agreement was observed between QMR-based and ADP-based fat mass (ICC: 0.85) and FMI (ICC: 0.82). Reduced major axis regression analysis suggested that QMR measurements were generally lower than ADP measurements. Bland-Altman analysis similarly revealed that QMR-based fat mass were (mean difference [95% limits of agreement]) -0.5 (-2.1 to +1.1) kg lower than ADP-based fat mass and QMR-based FMI were -0.4 (-1.8 to +0.9) kg/m2 lower than ADP-based FMI. Stratification by offspring sex revealed better agreement of QMR and ADP measurements in girls than in boys. CONCLUSIONS: QMR-based fat mass and FMI showed substantial agreement with, but was generally lower than, ADP based measures in young Asian children. PMID- 29024559 TI - Comparative efficacy of five long-term weight loss drugs: quantitative information for medication guidelines. AB - Quantitative information is scarce in current obesity medication guidelines, and they do not clearly reflect the differences in the efficacy characteristics among various drugs. This study quantitatively assessed the efficacy characteristics of five FDA-approved long-term weight loss drugs. Potentially eligible studies were obtained from public databases. Using the differences in the weight change from baseline between the drug group and the corresponding placebo group as the major indicator of efficacy, a time-effect model was established, and crucial pharmacodynamic parameters, such as the maximal efficacy, drug onset time and rate of body weight regain after the maximal efficacy point, were used to reflect the differences in efficacy among the five drugs. Finally, 50 reports (involving 43,443 participants) were included. After deducting the placebo effects, the maximal efficacies (95% CI) of orlistat (120 mg), lorcaserin, naltrexone bupropion, phentermine-topiramate (PT, 7.5/46 mg) and liraglutide were -2.94 ( 5.82, -1.27), -3.06 (-4.39, -1.71), -6.15 (-9.78, -3.25), -7.45 (-9.76, -3.88) and -5.50 (-10.62, -2.97) kg at weeks 60, 54, 67, 59 and 65 respectively, and their rates of body weight regain were 0.51, 0.48, 0.91, 1.27and 0.43 kg per year respectively. The 1-year dropout rates of orlistat, lorcaserin, naltrexone bupropion, PT and liraglutide were 29.0, 40.9, 49.1, 34.9 and 24.3% respectively. In addition, a significant dose-effect correlation was observed for orlistat and PT. This study provides valid quantitative information for medication guidelines. PMID- 29024558 TI - Overweight, obesity and adiposity in survivors of childhood brain tumours: a systematic review and meta-analysis. AB - Survivors of childhood brain tumours (SCBT) have increased cardiometabolic risks, but the determinants of these risks are unclear. This systematic review aims to compare the prevalence of overweight and obesity as well as adiposity measures between SCBT and non-cancer controls. The PubMed, EMBASE, MEDLINE, CINAHL and the Cochrane Library databases were searched. The primary outcomes were the prevalence of overweight and obesity based on body mass index. The secondary outcomes were adiposity measures including percent fat mass, waist-to-hip and waist-to-height ratios. Forty-one studies were included in the meta-analysis. The prevalence of overweight and obesity combined was similar between overall SCBT, SCBT excluding craniopharyngioma and non-cancer controls (42.6%, 95% CI 30.1-55.1 vs. 31.7%, 95% CI 20.4-43.0 vs. 40.4%, 95% CI 34.0-46.8). We also found that SCBT have higher percent fat mass (mean difference 4.1%, 95% CI 2.0-6.1), waist-to-hip ratio (mean difference 0.07, 95% CI 0.02-0.13) and waist-to-height ratio (mean difference 0.06, 95% CI 0.01-0.10) than non-cancer controls. We conclude that SCBT have similar overweight and obesity distribution but higher adiposity than non-cancer controls. More studies were needed to explore the determinants of adiposity and its contribution to cardiometabolic outcomes in SCBT. PMID- 29024560 TI - Enhanced Stem Cell Differentiation and Immunopurification of Genome Engineered Human Retinal Ganglion Cells. AB - Human pluripotent stem cells have the potential to promote biological studies and accelerate drug discovery efforts by making possible direct experimentation on a variety of human cell types of interest. However, stem cell cultures are generally heterogeneous and efficient differentiation and purification protocols are often lacking. Here, we describe the generation of clustered regularly interspaced short palindromic repeats(CRISPR)-Cas9 engineered reporter knock-in embryonic stem cell lines in which tdTomato and a unique cell-surface protein, THY1.2, are expressed under the control of the retinal ganglion cell (RGC) enriched gene BRN3B. Using these reporter cell lines, we greatly improved adherent stem cell differentiation to the RGC lineage by optimizing a novel combination of small molecules and established an anti-THY1.2-based protocol that allows for large-scale RGC immunopurification. RNA-sequencing confirmed the similarity of the stem cell-derived RGCs to their endogenous human counterparts. Additionally, we developed an in vitro axonal injury model suitable for studying signaling pathways and mechanisms of human RGC cell death and for high-throughput screening for neuroprotective compounds. Using this system in combination with RNAi-based knockdown, we show that knockdown of dual leucine kinase (DLK) promotes survival of human RGCs, expanding to the human system prior reports that DLK inhibition is neuroprotective for murine RGCs. These improvements will facilitate the development and use of large-scale experimental paradigms that require numbers of pure RGCs that were not previously obtainable. Stem Cells Translational Medicine 2017;6:1972-1986. PMID- 29024561 TI - Determination of hydroxy metabolites of cocaine in hair samples for proof of consumption. AB - Although hair is widely used to identify drug use, there is a risk of false positives due to environmental contamination. This especially applies to cocaine (COC). Several strategies such as detection of norcocaine (NCOC) or cocaethylene, metabolite concentration ratios or intricate washing procedures have been proposed to differentiate actual use from contamination. The aim of the present study was to identify hydroxy metabolites of COC in hair specimens, thus enabling unambiguous prove of ingestion. A suspect screening of 41 COC-positive samples for these compounds was performed by liquid chromatography-quadrupole time of flight-mass spectrometry (LC-QTOF-MS). Once identified, mass transitions for o-, p- and m-isomers of hydroxy COC as well as p- and m-isomers of hydroxy benzoylecgonine (BE) and hydroxy NCOC were introduced into a routine procedure for testing drugs of abuse in hair by liquid chromatography-tandem mass spectrometry (LC-MS/MS) which was applied to 576 hair samples. Hydroxy metabolites were present in 92.2% of COC-positive hair samples; their detection rate exceeded that of cocaethylene and NCOC. Moreover, p-OH-BE, m-OH-BE as well as p-OH-NCOC and m-OH-NCOC have been identified for the first time in COC positive hair specimens. Hydroxy cocainics could be detected in samples having a negative conclusion on drug use applying hitherto established criteria. We suggest a more conclusive interpretation outcome including detection of hydroxy metabolites into the evaluation of COC-positive hair samples. PMID- 29024562 TI - Health maintenance practices and healthcare experiences among international university students. AB - BACKGROUND AND PURPOSE: While over a million international students attend U.S. universities, there is little information to guide providers on their care. Differences in language and health beliefs can lead to misunderstandings and poor outcomes. The purpose of this study was to describe the health practices and healthcare experiences of international students before and after they move to the United States to carve out specific quality improvement activities at a student health center. METHODS: International students volunteered to attend focus groups. Data were analyzed using text coding software (Dedoose) to identify salient themes that reflected participants' experiences. CONCLUSIONS: Participants (N = 19) identified four areas of health maintenance: exercise, nutrition, yearly checkups, and self-care for minor ailments. While participants described health care in their home countries as accessible and affordable, they described health care in the United States as less accessible, more expensive, and laden with communication mishaps. IMPLICATIONS FOR PRACTICE: A broader educational message to international students, that is, how to maintain healthy habits in the United States and how to access/navigate U.S. health care, coupled with staff training on effective health communication and the use of interpreter services would enhance the health and healthcare experience of this vital population. PMID- 29024563 TI - Ligand Substituents Govern the Efficiency and Mechanistic Path of Hydrogen Production with [Cp*Rh] Catalysts. AB - We demonstrate that [Cp*Rh] complexes bearing substituted 2,2'-bipyridyl ligands are effective hydrogen evolution catalysts (Cp*=eta5 pentamethylcyclopentadienyl). Disubstitution (at the 4 and 4' positions) of the bipyridyl ligand (namely -tBu, -H, and -CF3 ) modulates the catalytic overpotential, in part due to involvement of the reduced ligand character in formally rhodium(I) intermediates. These reduced species are synthesized and isolated here; protonation results in formation of complexes bearing the unusual eta4 -pentamethylcyclopentadiene ligand, and the properties of these protonated intermediates further govern the catalytic performance. Electrochemical studies suggest that multiple mechanistic pathways are accessible, and that the operative pathway depends on the applied potential and solution conditions. Taken together, these results suggest synergy in metal-ligand cooperation that modulates the mechanisms of fuel-forming catalysis with organometallic compounds bearing multiple non-innocent ligands. PMID- 29024564 TI - Videourodynamic factors predictive of successful onabotulinumtoxinA urethral sphincter injection for neurogenic or non-neurogenic detrusor underactivity. AB - OBJECTIVE: The aim of the present study was to analyze treatment outcomes and identify videourodynamic factors predictive of successful urethral onabotulinumtoxinA treatment of neurogenic and non-neurogenic detrusor underactivity (DU). METHODS: Patients with DU refractory to medical treatment were treated with injections totaling 100 U onabotulinumtoxinA into the urethral sphincter. Treatment outcomes were assessed 1 month after treatment using the Global Response Assessment. The videourodynamic parameters evaluated included bladder neck status during voiding, bladder sensation, detrusor pressure, maximum flow rate, and post-void residual volume. Treatment outcome was analyzed by patient and baseline videourodynamic characteristics. RESULTS: In all, 60 patients (27 with non-neurogenic and 33 with neurogenic DU) were included in the study and received urethral sphincter injections of 100 U onabotulinumtoxinA in total. Good outcomes were reported in 36 (60%) patients (20 [74.1%] with non neurogenic and 16 [48.5%] with neurogenic DU). Treatment outcome was significantly better in patients with non-neurogenic than neurogenic DU (P = .039). However, good treatment outcome was not related to age, gender, or any videourodynamic variables, except for an open bladder neck during voiding vs non opening bladder neck (94.3% vs. 12.0%; P < .0001). The duration of the therapeutic effect was similar between patients with non-neurogenic and neurogenic DU (mean [+/- SD] 7.37 +/- 3.69 vs. 7.69 +/- 3.18 months, respectively; P = .788). In all, 12 patients reported de novo urinary incontinence after urethral onabotulinumtoxinA injection, 4 of whom developed stress urinary incontinence and 8 who had exacerbated urgency urinary incontinence. CONCLUSION: Urethral sphincter injection of onabotulinumtoxinA is effective in 60% of patients with DU. Careful videourodynamic interpretation of bladder neck opening enables urologists to select appropriate candidates for onabotulinumtoxinA treatment. PMID- 29024565 TI - How to measure blood pressure in primary care offices to assure accuracy while maintaining efficiency. PMID- 29024566 TI - Carbon Textile Decorated with Pseudocapacitive VC/Vx Oy for High-Performance Flexible Supercapacitors. AB - It is demonstrated that, via V2 O5 coating by low temperature atomic layer deposition and subsequent pyrolysis, ubiquitous cotton textile can readily turn into high-surface-area carbon textile fully decorated with pseudocapacitive Vx Oy /VC widely usable as electrodes of high-performance supercapacitor. It is found that carbothermic reduction of V2 O5 (C + V2 O5 -> C' + VC + CO/CO2 (g)) leads to chemical/mechanical activation of carbon textile, thereby producing high-surface area conductive carbon textile. In addition, sequential phase transformation and carbide formation (V2 O5 -> Vx Oy -> VC) occurred by carbothermic reduction trigger decoration of the carbon textile with redox-active Vx Oy /VC. Thanks to the synergistic effect of electrical double layer and pseudocapacitance, the supercapacitors made of the hybrid carbon textile exhibit far better energy density (over 30-fold increase) with excellent cycling stability than the carbon textile simply undergone pyrolysis. The method can open up a promising and facile way to synthesize hybrid electrode materials for electrochemical energy storages possessing advantages of both electrical double layer and pseudocapacitive material. PMID- 29024568 TI - Word maturity indices with latent semantic analysis: why, when, and where is Procrustes rotation applied? AB - The aim of this paper is to describe and explain one useful computational methodology to model the semantic development of word representation: Word maturity. In particular, the methodology is based on the longitudinal word monitoring created by Kirylev and Landauer using latent semantic analysis for the representation of lexical units. The paper is divided into two parts. First, the steps required to model the development of the meaning of words are explained in detail. We describe the technical and theoretical aspects of each step. Second, we provide a simple example of application of this methodology with some simple tools that can be used by applied researchers. This paper can serve as a user friendly guide for researchers interested in modeling changes in the semantic representations of words. Some current aspects of the technique and future directions are also discussed. WIREs Cogn Sci 2018, 9:e1457. doi: 10.1002/wcs.1457 This article is categorized under: Computer Science > Natural Language Processing Linguistics > Language Acquisition Psychology > Development and Aging. PMID- 29024567 TI - Loading-Induced Reduction in Sclerostin as a Mechanism of Subchondral Bone Plate Sclerosis in Mouse Knee Joints During Late-Stage Osteoarthritis. AB - OBJECTIVE: To establish an unbiased, 3-dimensional (3-D) approach that quantifies subchondral bone plate (SBP) changes in mouse joints, and to investigate the mechanism that mediates SBP sclerosis at a late stage of osteoarthritis (OA). METHODS: A new micro-computed tomography (micro-CT) protocol was developed to characterize the entire thickness of the SBP in the distal femur of a normal mouse knee. Four mouse models of severe joint OA were generated: cartilage specific Egfr-knockout (Egfr-CKO) mice at 2 months after surgical destabilization of the medial meniscus (DMM), Egfr-CKO mice with aging-related spontaneous OA, wild-type (WT) mice at 10 months after DMM, and WT mice at 14 weeks after DMM plus hemisectomy of the meniscus (DMMH) surgery. As an additional model, mice with knockout of the sclerostin gene (Sost-KO) were subjected to DMMH surgery. Knee joints were examined by micro-CT, histology, and immunohistochemical analyses. RESULTS: Examination of the mouse distal femur by 3-D micro-CT revealed a positive correlation between SBP thickness and the loading status in normal knees. In all 4 mouse models of late-stage OA, SBP sclerosis was restricted to the areas under severely eroded articular cartilage. This was accompanied by elevated bone formation at the bone marrow side of the SBP and a drastic reduction in the levels of sclerostin in osteocytes within the SBP. Unlike in WT mice, no further increase in the thickness of the SBP was observed in response to DMMH in Sost-KO mice. CONCLUSION: Since focal stress on the SBP underlying sites of cartilage damage increases during late stages of OA, these findings establish mechanical loading-induced attenuation of sclerostin expression and elevation of bone formation along the SBP surface as the major mechanisms characterizing subchondral bone phenotypes associated with severe late-stage OA in mice. PMID- 29024569 TI - Proline-Rich Chaperones Are Compared Computationally and Experimentally for Their Abilities to Facilitate Recombinant Butyrylcholinesterase Tetramerization in CHO Cells. AB - Human butyrylcholinesterase (BChE), predominantly tetramers with a residence time of days, offers the potential to scavenge organophosphorus pesticides and chemical warfare agents. Efficient assembly of human BChE into tetramers requires an association with proline-rich peptide chaperones. In this study, the incorporation of different proline-rich peptide chaperones into BChE is investigated computationally and experimentally. First, the authors applied molecular dynamic (MD) simulations to interpret the interactions between proline rich chaperones with human BChE tetramer domains. The P24 chaperone which contains 24 prolines, promoted the association of BChE tetramer with a 74% simulated helicity of BChE subunits, whereas the control without chaperone and BChE with an 8-proline chaperone (P8) complex exhibited 55.8 and 60.6% predicted helicity, respectively. The interaction of proline-rich chaperones with BChE subunits (B-P) provides a conduit to facilitate the interactions between BChE subunits (B-B) of the complex, which is mainly attributed to hydrophobic interactions and hydrogen-bond binding. Experimental assessment of these two proline-rich chaperones plus a 14-proline chaperone (P14) was performed and confirmed that P24 has superior capability to facilitate recombinant BChE (rBChE) tetramerization with >60% rBChE tetramer in P24-transfected rBChE cells, whereas P14- and P8-transfected rBChE cells had 44 and 33% rBChE tetramer, respectively. The rBChE control had 14% tetramer. Finally, we developed a stable rBChE tetramer expression system in CHO cells by enriching P24 expression in rBChE expressing cells. Overall, our simulations provided a design concept for identifying proline rich peptides that promote the rBChE tetramerization in CHO cells. PMID- 29024571 TI - Diffuse idiopathic skeletal hyperostosis (DISH): Increased prevalence in Pacific Islanders. AB - INTRODUCTION: Diffuse idiopathic skeletal hyperostosis (DISH) is a musculoskeletal disorder in which ligaments and entheses slowly become ossified, leading to decreased mobility and pain. The prevalence is variably reported as between 3% and 25% of the population over 50. In Australasia, the prevalence and severity of DISH has long been thought by radiologists to be high in certain populations, particularly among Pacific Islanders. The purpose of this study is to investigate the prevalence and severity of DISH in a Pacific Islander community. METHODS: Chest radiographs in 459 individuals were retrospectively reviewed to assess for the presence of features consistent with DISH, as per the Resnick Criteria. Each radiograph was also assessed for the number of vertebral bodies involved. The clinical records of these patients were accessed to obtain the patient's ethnicity. RESULTS: The prevalence of DISH in our group overall was 138/459 (30%) with a prevalence of 42/96 (44%) in the Pacific Islanders. The difference compared to the Europeans in the group is highly significant (P < 0.0001). CONCLUSIONS: This study verifies the high prevalence of DISH in Pacific Islanders. PMID- 29024572 TI - Radiological manifestations of immune-related adverse effects observed in patients with melanoma undergoing immunotherapy. AB - Immunotherapy drugs work by stimulating the patient's own immune system to recognize and destroy cancer cells. This subclass of drugs is increasingly administered to patients with advanced melanoma. They are also commonly incorporated into other cancer therapies such as non-small cell lung cancer, renal cancer, head and neck cancers and Hodgkin lymphoma. The most commonly administered immunotherapeutic agents in the treatment of melanoma include programmed cell death protein 1 (PD-1) inhibitors, cytotoxic T-lymphocyte antigen 4 (CTLA-4) inhibitors and a subclass of cytokines. During treatment with these antibodies, a unique set of adverse effects may occur which are often called immune-related adverse events (irAEs). It is vital for radiologists to be aware of and document these side effects during routine staging or body imaging during therapy. Some of these include pneumonitis, colitis, hypophysitis, lymphadenopathy or sarcoid-like syndrome and myositis. IrAEs such as sarcoid-like lymphadenopathy can mimic progression of disease. Serious side effects are seen in less than 10% of patients, and typically emerge between 6 and 12 weeks after commencing treatment. The clinical manifestations of these side effects typically vary from mild to severe and so do the radiological findings. Patients with mild side effects are often treated successfully with systemic corticosteroids, while severe cases require cessation of immunotherapy. We provide a pictorial article on the common irAEs and the associated radiological manifestations. PMID- 29024570 TI - Deuterium-reinforced polyunsaturated fatty acids improve cognition in a mouse model of sporadic Alzheimer's disease. AB - Oxidative damage resulting from increased lipid peroxidation (LPO) is considered an important factor in the development of late onset/age-related Alzheimer's disease (AD). Deuterium-reinforced polyunsaturated fatty acids (D-PUFAs) are more resistant to the reactive oxygen species-initiated chain reaction of LPO than regular hydrogenated (H-) PUFAs. We investigated the effect of D-PUFA treatment on LPO and cognitive performance in aldehyde dehydrogenase 2 (Aldh2) null mice, an established model of oxidative stress-related cognitive impairment that exhibits AD-like pathologies. Mice were fed a Western-type diet containing either D- or H-PUFAs for 18 weeks. D-PUFA treatment markedly decreased cortex and hippocampus F2 -isoprostanes by approximately 55% and prostaglandin F2alpha by 20 25% as compared to H-PUFA treatment. D-PUFAs consistently improved performance in cognitive/memory tests, essentially resetting performance of the D-PUFA-fed Aldh2 /- mice to that of wild-type mice fed a typical laboratory diet. D-PUFAs therefore represent a promising new strategy to broadly reduce rates of LPO, and combat cognitive decline in AD. PMID- 29024574 TI - Effects of plasma jet, dielectric barrier discharge, photodynamic therapy and sodium hypochlorite on infected curved root canals. AB - The aim of this investigation was to evaluate the effects of 2 different cold atmospheric plasma (CAP) sources, photodynamic therapy and sodium hypochlorite (NaOCl), on infected root canals. Therefore, 50 standardized curved human root canals were infected with Enterococcus faecalis and assigned to 5 groups-negative control (NC), plasma jet (CAP I), dielectric barrier discharge (CAP II), photodynamic therapy (PDT) and NaOCl + passive ultrasonic irrigation-for 30 s. Colony forming units (CFUs) were determined. NaOCl was significantly more effective at reducing CFUs than all test groups (P < .0001 [Mann-Whitney U test]) in both parts of the root canal. CFUs in PDT were significantly lower than those in CAP II (P = .015), and those in CAP I were lower than those in CAP II (P = .05). Among all other groups and in the apical parts, no significant differences were found (P > .05). PMID- 29024573 TI - Targeting MTA1/HIF-1alpha signaling by pterostilbene in combination with histone deacetylase inhibitor attenuates prostate cancer progression. AB - The metastasis-associated protein 1(MTA1)/histone deacetylase (HDAC) unit is a cancer progression-related epigenetic regulator, which is overexpressed in hormone-refractory and metastatic prostate cancer (PCa). In our previous studies, we found a significantly increased MTA1 expression in a prostate-specific Pten null mouse model. We also demonstrated that stilbenes, namely resveratrol and pterostilbene (Pter), affect MTA1/HDAC signaling, including deacetylation of tumor suppressors p53 and PTEN. In this study, we examined whether inhibition of MTA1/HDAC using combination of Pter and a clinically approved HDAC inhibitor, SAHA (suberoylanilide hydroxamic acid, vorinostat), which also downregulates MTA1, could block prostate tumor progression in vivo. We generated and utilized a luciferase reporter in a prostate-specific Pten-null mouse model (Pb-Cre+ ; Ptenf/f ; Rosa26Luc/+ ) to evaluate the anticancer efficacy of Pter/SAHA combinatorial approach. Our data showed that Pter sensitized tumor cells to SAHA treatment resulting in inhibiting tumor growth and additional decline of tumor progression. These effects were dependent on the reduction of MTA1-associated proangiogenic factors HIF-1alpha, VEGF, and IL-1beta leading to decreased angiogenesis. In addition, treatment of PCa cell lines in vitro with combined Pter and low dose SAHA resulted in more potent inhibition of MTA1/HIF-1alpha than by high dose SAHA alone. Our study provides preclinical evidence that Pter/SAHA combination treatment inhibits MTA1/HIF-1alpha tumor-promoting signaling in PCa. The beneficial outcome of combinatorial strategy using a natural agent and an approved drug for higher efficacy and less toxicity supports further development of MTA1-targeted therapies in PCa. PMID- 29024576 TI - Insight into plant cell wall chemistry and structure by combination of multiphoton microscopy with Raman imaging. AB - Spontaneous Raman scattering microspectroscopy, second harmonic generation (SHG) and 2-photon excited fluorescence (2PF) were used in combination to characterize the morphology together with the chemical composition of the cell wall in native plant tissues. As the data obtained with unstained sections of Sorghum bicolor root and leaf tissues illustrate, nonresonant as well as pre-resonant Raman microscopy in combination with hyperspectral analysis reveals details about the distribution and composition of the major cell wall constituents. Multivariate analysis of the Raman data allows separation of different tissue regions, specifically the endodermis, xylem and lumen. The orientation of cellulose microfibrils is obtained from polarization-resolved SHG signals. Furthermore, 2 photon autofluorescence images can be used to image lignification. The combined compositional, morphological and orientational information in the proposed coupling of SHG, Raman imaging and 2PF presents an extension of existing vibrational microspectroscopic imaging and multiphoton microscopic approaches not only for plant tissues. PMID- 29024577 TI - Interpersonal barriers to recovery from borderline personality disorder: A qualitative analysis of patient perspectives. AB - Social-environmental factors have been found to be an integral part in the recovery process for individuals with psychiatric disabilities. There are few studies that have obtained patient perspectives of how their social and treatment environments help facilitate or impede the recovery process. The following study examined the self-reported interpersonal barriers to recovery among a sample of individuals (N = 31) with borderline personality disorder who were receiving dialectical behaviour therapy. The goal of study was to identify self-reported problematic behaviour that interferes with recovery goals and identify types of family, friend and/or provider behaviours that increased the likelihood of patients engaging in these problematic behaviours. A content analysis yielded three themes of problematic behaviour, and how these behaviours were reinforced by others, including (1) avoidance behaviours, (2) encouragement of negative coping and (3) communication of low behavioural expectations. Implications for the impact of these patterns of reinforcement within behavioural health settings are discussed. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29024575 TI - Review: Genetics and the Classification of Arthritis in Adults and Children. AB - Current classification of primary inflammatory arthritis begins from the assumption that adults and children are different. No form of juvenile idiopathic arthritis bears the same name as an adult arthritis, a nomenclature gap with implications for both clinical care and research. Recent genetic data have raised questions regarding this adult/pediatric divide, revealing instead broad patterns that span the age spectrum. Combining these genetic patterns with demographic and clinical data, we propose that inflammatory arthritis can be segregated into 4 main clusters, largely irrespective of pediatric or adult onset: seropositive, seronegative (likely including a distinct group that usually begins in early childhood), spondyloarthritis, and systemic. Each of these broad clusters is internally heterogeneous, highlighting the need for further study to resolve etiologically discrete entities. Eliminating divisions based on arbitrary age cutoffs will enhance opportunities for collaboration between adult and pediatric rheumatologists, thereby helping to promote the understanding and treatment of arthritis. PMID- 29024579 TI - Impact of the Norepinephrine Prodrug Droxidopa on the QTc Interval in Healthy Individuals. AB - A double-blind, 4-period crossover study (NCT01327066) was conducted to assess the effect of the novel norepinephrine prodrug droxidopa on the QT interval in in healthy subjects. Subjects were randomized to receive a single dose of droxidopa 600 mg (maximal dose) and 2000 mg (supratherapeutic dose) compared with the positive control, moxifloxacin 400 mg, and placebo, each separated by a 3-day washout period. Patients were monitored by continuous Holter monitoring, and electrocardiograms (ECGs) were extracted 0.5-23 hours after dosing. Blood samples for pharmacokinetic analysis were collected before dosing and after ECG data collection. The primary end point was the time-matched placebo-adjusted change from baseline in the individually corrected QT (QTcI). The time-averaged QTcI mean placebo-corrected changes from baseline for droxidopa 600 and 2000 mg were 0.1 milliseconds (90%CI, -0.9 to 1.0 milliseconds) and 0.3 milliseconds (90%CI, 0.6 to 1.3 milliseconds), respectively, and 9 milliseconds (90%CI, 8.4-10.3 milliseconds) for moxifloxacin. This study found no effect of either dose of droxidopa on cardiac repolarization using QTcI. Analysis of the pharmacokinetic/pharmacodynamic relationship and cardiac repolarization showed no association with droxidopa exposure. There were no clinically relevant effects of droxidopa on heart rate, atrioventricular conduction, or cardiac depolarization identified. No morphologic ECG changes were observed. PMID- 29024578 TI - Morpho-Functional Features of the Gonads of Danio rerio: the Role of Brain Derived Neurotrophic Factor. AB - Zebrafish, a suitable and widely used teleost fish model in basic biomedical research, displays morphophysiological features of adult gonads that share some commonalities with those of mammalian species. In mammals, gametogenesis is regulated, among several factors, by brain-derived neurotrophic factor (BDNF). This neurotrophin has a well-established role in the developing and adult nervous system, as well as gonads development and functions in vertebrate species. We hypothesize that BDNF has a role also in the gonadal functions of zebrafish. At this purpose, we investigated BDNF and its receptors p75 and TrkB in the ovary and testis of adult zebrafish, kept under laboratory conditions. Our results display (1) the expression of BDNF mRNA and pro-BDNF protein outside of the nervous system, specifically in the ovary and testis; (2) the presence of pro BDNF in primary oocytes and follicular layer, and p75 in follicular cells; (3) the localization of pro-BDNF in type B spermatogonia, and Sertoli cells in testis. Altogether, these data lead us to consider that BDNF is involved in the gonadal function of adult zebrafish, and mainly in the adult ovary. Anat Rec, 2017. (c) 2017 Wiley Periodicals, Inc. Anat Rec, 301:140-147, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29024580 TI - Fos Promotes Early Stage Teno-Lineage Differentiation of Tendon Stem/Progenitor Cells in Tendon. AB - Stem cells have been widely used in tendon tissue engineering. The lack of refined and controlled differentiation strategy hampers the tendon repair and regeneration. This study aimed to find new effective differentiation factors for stepwise tenogenic differentiation. By microarray screening, the transcript factor Fos was found to be expressed in significantly higher amounts in postnatal Achilles tendon tissue derived from 1 day as compared with 7-days-old rats. It was further confirmed that expression of Fos decreased with time in postnatal rat Achilles tendon, which was accompanied with the decreased expression of multiply tendon markers. The expression of Fos also declined during regular in vitro cell culture, which corresponded to the loss of tendon phenotype. In a cell-sheet and a three-dimensional cell culture model, the expression of Fos was upregulated as compared with in regular cell culture, together with the recovery of tendon phenotype. In addition, significant higher expression of tendon markers was found in Fos-overexpressed tendon stem/progenitor cells (TSPCs), and Fos knock-down gave opposite results. In situ rat tendon repair experiments found more normal tendon-like tissue formed and higher tendon markers expression at 4 weeks postimplantation of Fos-overexpressed TSPCs derived nonscaffold engineering tendon (cell-sheet), as compared with the control group. This study identifies Fos as a new marker and functional driver in the early stage teno-lineage differentiation of tendon, which paves the way for effective stepwise tendon differentiation and future tendon regeneration. Stem Cells Translational Medicine 2017;6:2009-2019. PMID- 29024581 TI - Radially Phase Segregated PtCu@PtCuNi Dendrite@Frame Nanocatalyst for the Oxygen Reduction Reaction. AB - Pt-based alloy nanoframes have shown great potential as electrocatalysts toward the oxygen reduction reaction (ORR) in fuel cells. However, the intrinsically infirm nanoframes could be severely deformed during extended electro-cyclings, which eventually leads to the loss of the initial catalytic activity. Therefore, the structurally robust nanoframe is a worthy synthetic target. Furthermore, ternary alloy phase electrocatalysts offer more opportunities in optimizing the stability and activity than binary alloy ones. Herein, we report a robust PtCuNi ternary nanoframe, structurally fortified with an inner-lying PtCu dendrite, which shows a highly active and stable catalytic performance toward ORR. Remarkably, the PtCu@PtCuNi catalyst exhibited 11 and 16 times higher mass and specific activities than those of commercial Pt/C. PMID- 29024582 TI - Photocontrol of the Hv1 Proton Channel. AB - The voltage-gated proton channel Hv1 is expressed in various human cell types, including macrophages, epithelial cells, and sperm. Hv1 opening leads to proton efflux that alkalizes the cytosol. Here, we describe light-activated Hv1 inhibitors (photoswitches) that allow controlling its activity with high spatiotemporal precision. The photoswitches comprise a light-sensitive azobenzene moiety and 2-guanidinobenzimidazole (2GBI), a known Hv1 inhibitor. In the dark, photoGBI inhibits heterologously expressed Hv1 channels. Blue light, which isomerizes the azobenzene group from trans to cis conformation, releases inhibition. We demonstrate photocontrol of native proton currents in human macrophages and sperm using photoGBI, underlining their use as valuable optochemical tools to study the function of Hv1 channels. PMID- 29024583 TI - Endowing Hydrochromism to Fluorans via Bioinspired Alteration of Molecular Structures and Microenvironments and Expanding Their Potential for Rewritable Paper. AB - Interest and effort toward new materials for rewritable paper have increased dramatically because of the exciting advantages for sustainable development and better nature life cycle. Inspired by how nature works within living systems, herein, we have used fluorans, as a concept verification, to endow original acidochromic, basochromic or photochromic molecules with broader properties, such as switchable with solvent, water, heat, electricity, stress, other force, etc., via simplified methods (i.e., via variation of submolecular structure or microenvironments). The hydrochromic visual change and reversible behavior of selected molecules have been explored, and the primary mechanism at the atomic or subatomic level has been hypothesized. In addition, several newly demonstrated hydrochromic fluorans have been utilized for water-jet rewritable paper (WJRP), which exhibit great photostability, high hydrochromic contrast, and fast responsive rate and which can be reused at least 30 times without significant variation. The water-jet prints have good resolution and various colors and can keep legibility after a few months or years. This improved performance is a major step toward practical applications of WJRP. PMID- 29024584 TI - Computational Prediction of Rate Constants for Reactions Involved in Al Clustering. AB - Aluminum (Al) clustering processes via three types of association reactions are herein studied using classical molecular dynamics trajectory calculations. The simulations were carried out under realistic experimental conditions. The dependence of rate constants on temperature and cluster size was obtained. The association reactions have a very small activation barrier, and the activation energy increases with increasing temperature. Our prediction of reaction rate constants can be of interest for the study of Al nanoparticle growth using kinetic models. PMID- 29024585 TI - N,S,P Co-Doped Carbon Nanodot Fabricated from Waste Microorganism and Its Application for Label-Free Recognition of Manganese(VII) and l-Ascorbic Acid and AND Logic Gate Operation. AB - A novel fluorescent probe based on N,S,P codoped carbon nanodots (N,S,P-CNDSac) is very simple and quickly fabricated by a one-step hydrothermal pyrolysis of Saccharomyces cerevisiae and utilized for label-free and "on-off-on" sequential detection of manganese(VII) and l-ascorbic acid (l-AA). The fluorescence of N,S,P CNDSac can be effectively quenched by Mn(VII) based on an inner filter effect (IFE) and recovered upon the addition of l-AA due to the easy conversion of Mn(VII) to reduced states (i.e., Mn(IV), Mn(II), and Mn(0)) by l-AA. This probe exhibited favorable selectivity and sensitivity toward Mn(VII) and l-AA with detection limits of 50 nmol/L and 1.2 MUmol/L, respectively. Simultaneously, an "AND" logic gate based on the as-fabricated N,S,P-CNDSac has been constructed. Also, the as-proposed fluorescent probe was extended to detect Mn(VII) and l-AA in biosystems. Furthermore, the as-constructed fluorescent probe system was successfully applied to the analyses of Mn(VII) in tap water, Fenhe River water, and medicinal herb samples with satisfactory results. The proposed method is simple and easily accessible, demonstrating the great potential of N,S,P-CNDSac in biosensing, disease diagnosis, cellular labeling, and environmental monitoring. PMID- 29024586 TI - How Many Conformations Need To Be Sampled To Obtain Converged QM/MM Energies? The Curse of Exponential Averaging. AB - Combined quantum mechanical and molecular mechanical (QM/MM) calculations is a popular approach to study enzymatic reactions. They are often based on a set of minimized structures obtained on snapshots from a molecular dynamics simulation to include some dynamics of the enzyme. It has been much discussed how the individual energies should be combined to obtain a final estimate of the energy, but the current consensus seems to be to use an exponential average. Then, the question is how many snapshots are needed to reach a reliable estimate of the energy. In this paper, I show that the question can be easily be answered if it is assumed that the energies follow a Gaussian distribution. Then, the outcome can be simulated based on a single parameter, sigma, the standard deviation of the QM/MM energies from the various snapshots, and the number of required snapshots can be estimated once the desired accuracy and confidence of the result has been specified. Results for various parameters are presented, and it is shown that many more snapshots are required than is normally assumed. The number can be reduced by employing a cumulant approximation to second order. It is shown that most convergence criteria work poorly, owing to the very bad conditioning of the exponential average when sigma is large (more than ~7 kJ/mol), because the energies that contribute most to the exponential average have a very low probability. On the other hand, sigma serves as an excellent convergence criterion. PMID- 29024587 TI - Discovery of a Distinct Chemical and Mechanistic Class of Allosteric HIV-1 Integrase Inhibitors with Antiretroviral Activity. AB - Allosteric integrase inhibitors (ALLINIs) bind to the lens epithelial-derived growth factor (LEDGF) pocket on HIV-1 integrase (IN) and possess potent antiviral effects. Rather than blocking proviral integration, ALLINIs trigger IN conformational changes that have catastrophic effects on viral maturation, rendering the virions assembled in the presence of ALLINIs noninfectious. A high throughput screen for compounds that disrupt the IN.LEDGF interaction was executed, and extensive triage led to the identification of a t-butylsulfonamide series, as exemplified by 1. The chemical, biochemical, and virological characterization of this series revealed that 1 and its analogs produce an ALLINI like phenotype through engagement of IN sites distinct from the LEDGF pocket. Key to demonstrating target engagement and differentiating this new series from the existing ALLINIs was the development of a fluorescence polarization probe of IN (FLIPPIN) based on the t-butylsulfonamide series. These findings further solidify the late antiviral mechanism of ALLINIs and point toward opportunities to develop structurally and mechanistically novel antiretroviral agents with unique resistance patterns. PMID- 29024588 TI - Uptake, Accumulation, and in Planta Distribution of Coexisting Cerium Oxide Nanoparticles and Cadmium in Glycine max (L.) Merr. . AB - Agricultural soils are likely to be polluted by both conventional and emerging contaminants at the same time. Understanding the interactions of coexisting engineered nanoparticles (ENPs) and trace elements (a common source of abiotic stress) is critical to gaining insights into the accumulation of these two groups of chemicals by plants. The objectives of this study were to determine the uptake and accumulation of coexisting ENPs and trace elements by soybeans and to gain insights into the physiological mechanisms resulting in different plant accumulation of these materials. The combinations of three cadmium levels (0 [control] and 0.25 and 1 milligrams per kilogram of dry soil) and two CeO2 NPs concentrations (0 [control] and 500 milligrams per kilogram of dry soil) were investigated. Measurements of the plant biomass and physiological parameters indicated that CeO2 NPs led to higher variable fluorescence to maximum fluorescence ratio, suggesting that CeO2 NPs enhanced the plant light energy use efficiency by photosystem II. In addition, the presence of CeO2 NPs did not affect Cd accumulation in soybean, but Cd significantly increased the accumulation of Ce in plant tissues, especially in roots and older leaves. The altered Ce in planta distribution was partially associated with the formation of root apoplastic barriers in the co-presence of Cd and CeO2 NPs. PMID- 29024589 TI - Knocking Out OsPT4 Gene Decreases Arsenate Uptake by Rice Plants and Inorganic Arsenic Accumulation in Rice Grains. AB - Arsenic (As) accumulation in rice grains poses health risk to humans. Plants including rice take up arsenate (AsV) by phosphate transporters. In this study, rice phosphate transporter OsPT4 (OsPht1;4) was investigated based on two independent T-DNA insertion mutants of OsPT4 (M1 and M2), which displayed stronger AsV resistance than wild types WT1 and WT2. When cultivated in medium (+P or -P) with AsV, ospt4 mutants accumulated 16-32% lower As in plants, suggesting that OsPT4 mediates AsV uptake. Analysis of the xylem sap showed that AsV concentrations in ospt4 mutants was 20-40% lower than WT controls under -P condition, indicating OsPT4 may also mediate AsV translocation. Moreover, kinetics analysis showed that ospt4 mutants had lower AsV uptake rates than the WT controls, further proving that OsPT4 functions as an AsV transporter in rice. When grown in flooded soils with As, AsV concentrations in rice grains of ospt4 mutants decreased by 50-55%. More importantly, knocking out OsPT4 in M1 and M2 reduced inorganic As accumulation in rice grains by 20-44%, significant for controlling As exposure risk from rice. Taken together, our findings revealed a critical role of OsPT4 in AsV uptake and translocation in rice. Knocking out OsPT4 effectively decreased inorganic As accumulation in rice grains, shedding light on engineering low-As rice to enhance food safety. PMID- 29024592 TI - Hard Single-Molecule Magnet Behavior by a Linear Trinuclear Lanthanide [1]Metallocenophane Complex. AB - A synthetic protocol was developed that involves the transmetalation of a mono dysprosium-[1]ferrocenophane complex with DyX3 (X = Cl- or I-) to afford [Dy3Fc6Li2(THF)2]-, featuring a rare linear arrangement of magnetically anisotropic Dy3+ ions. The close spatial inter-lanthanide proximity, in combination with MU2-bridging sp2-hybridized CCp groups, enforces significant magnetic coupling and results in hard single-molecule magnet (SMM) behavior, with an effective barrier to magnetization reversal of up to 268 cm-1. Our results highlight the versatility of lanthanide metallocenophane architectures toward the development of novel multinuclear SMM frameworks. PMID- 29024590 TI - Efficient Synthesis of 1,9-Substituted Benzo[h][1,6]naphthyridin-2(1H)-ones and Evaluation of their Plasmodium falciparum Gametocytocidal Activities. AB - A novel three-component, two-step, one-pot nucleophilic aromatic substitution (SNAr)-intramolecular cyclization-Suzuki coupling reaction was developed for the synthesis of benzo[h][1,6]naphthyridin-2(1H)-ones (Torins). On the basis of the new efficiently convergent synthetic route, a library of Torin analogs was synthesized. The antimalarial activities of these compounds were evaluated against asexual parasites using a growth inhibition assay and gametocytes using a viability assay. PMID- 29024593 TI - Strongly Correlated Rafts in Both Leaves of an Asymmetric Bilayer. AB - I consider a model of a bilayer characterized by two order parameters, one in each leaf. That of the inner leaf represents the difference in mole fractions of lipids with large spontaneous curvature, phosphatidylethanolamine (PE), and those with small spontaneous curvatures, phosphatidylcholine (PC) and phosphatidylserine (PS). Similarly, the order parameter in the outer leaf represents the difference in mole fractions of lipids with small spontaneous curvature, PC, and large curvature, sphingomyelin (SM). Each order parameter is coupled to the variations in the height of the membrane that is assumed to be of constant thickness. The couplings are of different strength. I show that, with reasonable parameters, a microemulsion is formed in each leaf, and that the two microemulsions are strongly coupled. Their characteristic size of domains is found to be on the order of 75 nm. In this picture, rafts consist of regions of SM in the outer leaf and PC and PS in the inner leaf, floating in a sea of PC in the outer leaf and PE in the inner leaf. I argue that microemulsions have been observed, but not identified as such, in model systems. PMID- 29024591 TI - Small-Molecule Inhibitors of the CD40-CD40L Costimulatory Protein-Protein Interaction. AB - Costimulatory interactions are required for T cell activation and development of an effective immune response; hence, they are valuable therapeutic targets for immunomodulation. However, they, as all other protein-protein interactions, are difficult to target by small molecules. Here, we report the identification of novel small-molecule inhibitors of the CD40-CD40L interaction designed starting from the chemical space of organic dyes. For the most promising compounds such as DRI-C21045, activity (IC50) in the low micromolar range has been confirmed in cell assays including inhibition of CD40L-induced activation in NF-kappaB sensor cells, THP-1 myeloid cells, and primary human B cells as well as in murine allogeneic skin transplant and alloantigen-induced T cell expansion in draining lymph node experiments. Specificity versus other TNF-superfamily interactions (TNF-R1-TNF-alpha) and lack of cytotoxicity have also been confirmed at these concentrations. These novel compounds provide proof-of-principle evidence for the possibility of small-molecule inhibition of costimulatory protein-protein interactions, establish the structural requirements needed for efficient CD40 CD40L inhibition, and serve to guide the search for such immune therapeutics. PMID- 29024594 TI - Stability of Schottky and Ohmic Au Nanocatalysts to ZnO Nanowires. AB - Manufacturable nanodevices must now be the predominant goal of nanotechnological research to ensure the enhanced properties of nanomaterials can be fully exploited and fulfill the promise that fundamental science has exposed. Here, we test the electrical stability of Au nanocatalyst-ZnO nanowire contacts to determine the limits of the electrical transport properties and the metal semiconductor interfaces. While the transport properties of as-grown Au nanocatalyst contacts to ZnO nanowires have been well-defined, the stability of the interfaces over lengthy time periods and the electrical limits of the ohmic or Schottky function have not been studied. In this work, we use a recently developed iterative analytical process that directly correlates multiprobe transport measurements with subsequent aberration-corrected scanning transmission electron microscopy to study the electrical, structural, and chemical properties when the nanowires are pushed to their electrical limits and show structural changes occur at the metal-nanowire interface or at the nanowire midshaft. The ohmic contacts exhibit enhanced quantum-mechanical edge-tunneling transport behavior because of additional native semiconductor material at the contact edge due to a strong metal-support interaction. The low-resistance nature of the ohmic contacts leads to catastrophic breakdown at the middle of the nanowire span where the maximum heating effect occurs. Schottky-type Au-nanowire contacts are observed when the nanowires are in the as-grown pristine state and display entirely different breakdown characteristics. The higher-resistance rectifying I V behavior degrades as the current is increased which leads to a permanent weakening of the rectifying effect and atomic-scale structural changes at the edge of the Au interface where the tunneling current is concentrated. Furthermore, to study modified nanowires such as might be used in devices the nanoscale tunneling path at the interface edge of the ohmic nanowire contacts is removed with a simple etch treatment and the nanowires show similar I-V characteristics during breakdown as the Schottky pristine contacts. Breakdown is shown to occur either at the nanowire midshaft or at the Au contact depending on the initial conductivity of the Au contact interface. These results demonstrate the Au-nanowire structures are capable of withstanding long periods of electrical stress and are stable at high current densities ensuring they are ideal components for nanowire-device designs while providing the flexibility of choosing the electrical transport properties which other Au-nanowire systems cannot presently deliver. PMID- 29024595 TI - Organelle-Specific Triggered Release of Immunostimulatory Oligonucleotides from Intrinsically Coordinated DNA-Metal-Organic Frameworks with Soluble Exoskeleton. AB - DNA has proven of high utility to modulate the surface functionality of metal organic frameworks (MOFs) for various biomedical applications. Nevertheless, current methods for preparing DNA-MOF nanoparticles rely on either inefficient covalent conjugation or specific modification of oligonucleotides. In this work, we report that unmodified oligonucleotides can be loaded on MOFs with high density (~2500 strands/particle) via intrinsic, multivalent coordination between DNA backbone phosphate and unsaturated zirconium sites on MOFs. More significantly, surface-bound DNA can be efficiently released in either bulk solution or specific organelles in live cells when free phosphate ions are present. As a proof-of-concept for using this novel type of DNA-MOFs in immunotherapy, we prepared a construct of immunostimulatory DNA-MOFs (isMOFs) by intrinsically coordinating cytosine-phosphate-guanosine (CpG) oligonucleotides on biocompatible zirconium MOF nanoparticles, which was further armed by a protection shell of calcium phosphate (CaP) exoskeleton. We demonstrated that isMOFs exhibited high cellular uptake, organelle specificity, and spatiotemporal control of Toll-like receptors (TLR)-triggered immune responses. When isMOF reached endolysosomes via microtubule-mediated trafficking, the CaP exoskeleton dissolved in the acidic environment and in situ generated free phosphate ions. As a result, CpG was released from isMOFs and stimulated potent immunostimulation in living macrophage cells. Compared with naked CpG-MOF, isMOFs exhibited 83-fold up regulation in stimulated secretion of cytokines. We thus expect this isMOF design with soluble CaP exoskeleton and an embedded sequential "protect-release" program provides a highly generic approach for intracellular delivery of therapeutic nucleic acids. PMID- 29024596 TI - Wavelength Dependence of Light-Induced Cycloadditions. AB - The wavelength-dependent conversion of two rapid photoinduced ligation reactions, i.e., the light activation of o-methylbenzaldehydes, leading to the formation of reactive o-quinodimethanes (photoenols), and the photolysis of 2,5 diphenyltetrazoles, affording highly reactive nitrile imines, is probed via a monochromatic wavelength scan at constant photon count. The transient species are trapped by cycloaddition with N-ethylmaleimide, and the reactions are traced by high resolution mass spectrometry and nuclear magnetic resonance spectroscopy. The resulting action plots are assessed in the context of Beer-Lambert's law and provide combined with time-dependent density functional theory and multireference calculations an in-depth understanding of the underpinning mechanistic processes, including conical intersections. The pi -> pi* transition of the carbonyl group of the o-methylbenzaldehyde correlates with a highly efficient conversion to the cycloadduct, showing no significant wavelength dependence, while conversion following the n -> pi* transition proceeds markedly less efficient at longer wavelengths. The influence of absorbance and reactivity has critical consequences for an effective reaction design: At high concentrations of o-methylbenzaldehydes (c = 8 mmol L-1), photoligations with N-ethylmaleimide (possible for lambda <= 390 nm) are ideally performed at 330 nm, whereas at high light penetration regimes at lower concentrations (c = 0.3 mmol L-1), 315 nm irradiation leads to the highest conversion. Activation and trapping of 2,5-diphenyltetrazoles (possible for lambda <= 322 nm) proceeds best at a wavelength shorter than 295 nm, irrespective of concentration. PMID- 29024597 TI - Significant Chondrocyte Viability Is Present in Acetabular Chondral Flaps Associated With Femoroacetabular Impingement. AB - BACKGROUND: Patients presenting with cam deformity of the femoral head and neck sustain repeated trauma to the articular cartilage of the superior acetabulum, with chondral delamination injuries found during hip arthroscopy. Two previous studies reveal conflicting chondrocyte viability data in these traumatic cartilage injuries. The full-thickness nature of flaps may suggest that chondrocytes residing in the cartilage flap matrix in the joint environment would remain viable despite shear trauma. Hypothesis/Purpose: The purpose of this study is to determine the in vivo tissue viability of acetabular chondral flaps in patients with femoroacetabular impingement (FAI) when samples are analyzed immediately after biopsy. We hypothesize that the majority of the tissue in acetabular chondral flaps is viable in the joint microenvironment. STUDY DESIGN: Descriptive laboratory study. METHODS: Partially detached cartilage flaps from 10 patients undergoing arthroscopic hip surgery for FAI were biopsied in a minimally traumatic manner before chondroplasty and microfracture. Samples were placed in cold Hank's Balanced Salt Solution without phenol red solution and immediately transported on ice to our laboratory. The edge of the samples was trimmed and further cut into 3 separate, 1-mm-thick sections. Sections were stained using a live/dead staining kit. Images were obtained with confocal microscopy, and the percentage of live cells was quantified. RESULTS: Patients averaged 36 +/- 11 years (range, 18-48 years), and 2 patients were female. The mean body mass index was 28.9 +/- 5.6 kg/m2. The total proportion of live cells from all sections analyzed was 85.8%. The proportion of live cells per patient was 87% +/- 10%. CONCLUSION: We determined that acetabular chondral flaps are approximately 87% live cells when analyzed immediately after biopsy, with 6 of 10 patients having greater than 90% live cells. These data point to the importance of laboratory techniques in making viability judgments in biologic systems. CLINICAL RELEVANCE: Full-thickness cartilage loss is a difficult problem for all active people but particularly in the young population in whom joint preservation is key. We describe the viability of chondrocytes present in full-thickness acetabular-based chondral flaps encountered during hip arthroscopy. Identification of greater than 85% chondrocyte viability supports a foundation for evaluation and creation of novel clinical innovations for repair and replacement techniques using the flap as donor tissue, as alternatives to chondroplasty and microfracture. PMID- 29024599 TI - The effects of combined probiotic ingestion and circuit training on muscular strength and power and cytokine responses in young males. AB - To our knowledge, the efficacy of combined probiotic supplementation with circuit training has not been evaluated. Thus, we investigated the effects of probiotic supplementation combined with circuit training on isokinetic muscular strength and power and cytokine responses in young males. Forty-eight healthy sedentary young males were recruited and randomised into 4 separate groups: sedentary placebo control, probiotics (P), circuit training with placebo (CT), and circuit training with probiotics (CTP). Participants in the CT and CTP groups performed circuit training 3 times/week with 2 circuits of exercises from weeks 1-8 followed by 3 circuits of exercises from weeks 9-12. Participants in the P and CTP groups consumed multi-strain probiotics containing 3 * 1010 colony-forming units of Lactobacillus acidophilus, L. lactis, L. casei, Bifidobacterium longum, B. bifidum and B. infantis twice daily for 12 weeks. Measurements of body height and weight, blood pressure, resting heart rate, blood samples, and isokinetic muscular strength and power were carried out at pre- and post-tests. Isokinetic knee strength and power in CT and CTP groups were significantly higher (P < 0.05) at post-test. In addition, interleukin (IL)-10 concentration was significantly increased (P < 0.0001) at post-test in P and CT but a trend toward significant increase in CTP (P = 0.09). Nevertheless, there was no significant difference in IL-6. This study suggests that 12 weeks of circuit training alone and the combination of circuit training and probiotic consumption improved muscular performance while circuit training alone and probiotics alone increased IL-10 concentration. PMID- 29024598 TI - Effects of long-term exposures to low iron and branched-chain amino acid containing diets on aging skeletal muscle of Fisher 344 * Brown Norway rats. AB - Aging skeletal muscle displays an altered iron status that may promote oxidative stress and sarcopenia. A diet containing low iron (LI) could reduce muscle iron status and attenuate age-related muscle atrophy. Supplemental branched-chain amino acids (BCAA) may also alleviate sarcopenia by promoting muscle protein synthesis and iron status improvement. This study examined individual and combined effects of LI and BCAA diets on anabolic signaling and iron status in skeletal muscle of aging rats. Twenty-nine-month-old male Fisher 344 * Brown Norway rats consumed the following control-base diets: control + regular iron (35 mg iron/kg) (CR; n = 11); control + LI (~6 mg iron/kg) (CL; n = 11); 2*BCAA + regular iron (BR; n = 10); and 2*BCAA + LI (BL; n = 12) for 12 weeks. Although LI and/or 2*BCAA did not affect plantaris muscle mass, 2*BCAA groups showed lower muscle iron content than did CR and CL groups (P < 0.05). p70 ribosomal protein S6 kinase phosphorylation was greater in 2*BCAA and LI animals compared with CR animals (P < 0.05). Interactions between IRON and BCAA were observed for proteins indicative of mitochondrial biogenesis (peroxisome proliferator-activated receptor gamma coactivator 1 alpha) and oxidative capacity (cytochrome c oxidase subunit 2 and citrate synthase) (P < 0.05) wherein the combined diet (BL) negated potential benefits of individual diets. Antioxidant capacity, superoxide dismutase activity, and oxidative injury (3-nitrotyrosine, protein carbonyls, and 4-hydroxynonenal) were similar between groups. In conclusion, 12 weeks of LI and 2*BCAA diets showed significant impacts on increasing anabolic signaling as well as ameliorating iron status; however, these interventions did not affect muscle mass. PMID- 29024600 TI - Liver X receptor alpha is targeted by microRNA-1 to inhibit cardiomyocyte apoptosis through a ROS-mediated mitochondrial pathway. AB - Diabetic cardiomyopathy (DCM) is defined as ventricular dysfunction occurring independently of a recognized cause such as hypertension or coronary artery disease. Liver X receptor alpha (LXRalpha), a subtype of ligand-activated transcription factors LXRs, has been considered as a potential pharmacological target in the pathogenesis of cardiovascular and metabolic diseases. However, the potential mechanism of how LXRalpha is regulated in cardiomyocytes is still unclear. This study investigated the effect of activating LXRalpha with GW3965 on cardiomyocyte apoptosis and its upstream regulator in glucose-induced H9C2 cells. Our data indicated that GW3965 up-regulated the expression of LXRalpha, inhibited cardiomyocyte apoptosis, and altered the apoptosis-related proteins in glucose induced H9C2 cells. In addition, GW3965 restored the mitochondrial membrane potential level and decreased the ROS production induced by glucose. Moreover, LXRalpha was confirmed as a direct target of microRNA-1 (miR-1) that was involved in cardiomyocyte apoptosis of DCM, and overexpression of miR-1 abrogated the inhibiting effect of GW3965 on glucose-induced apoptosis in H9C2 cells. This study highlights an important role of LXRalpha in the development of DCM and brings new insights into the complex mechanisms involved in the pathogenesis of DCM. PMID- 29024601 TI - A Biomechanical Analysis of the Association Between Forearm Mechanics and the Elbow Varus Moment in Collegiate Baseball Pitchers. AB - BACKGROUND: The incidence of upper extremity injury in baseball pitchers has increased over the past decade. This has resulted in a large body of research mainly focused on the kinematic and kinetic patterns of the elbow and shoulder to elucidate the cause of these injuries, with little attention on studying the associations of forearm rotation and upper arm joint moments. HYPOTHESIS: There will be significant differences in forearm kinematics and kinetics when comparing the fastball pitch with the curveball pitch. There will be a positive association between forearm kinetics, specifically supination and pronation moments, and the elbow varus moment. STUDY DESIGN: Descriptive laboratory study. METHODS: A total of 78 pitchers were recruited for this study, and they underwent a pitching analysis using motion analysis techniques. A random-intercept, mixed-effects regression model was used to determine differences in forearm kinematics and kinetics when pitching a fastball compared with a curveball, as well as to determine if associations existed between forearm supination and pronation moments and the elbow varus moment. RESULTS: There were a number of significant differences in forearm position when pitching a fastball compared with a curveball, with the curveball producing a more supinated forearm position. Significant associations were found between increasing forearm supination moments and an increase in elbow varus moment for both the fastball and the curveball ( P = .002 and P < .001, respectively). For every 1-N.m increase in the supination moment, there was a 1-N.m and 1.1-N.m increase in the elbow varus moment for the fastball and curveball, respectively. CONCLUSION: The results demonstrated that the forearm position was not associated with the elbow varus moment. However, the supination moment was associated with the elbow varus moment. CLINICAL RELEVANCE: On the basis of these findings, pitching coaches and trainers can understand the implications of proper lower arm pitching mechanics in the later portion of the pitch cycle as a potential risk of injury and, therefore, can develop coaching strategies to reduce incorrect positioning, especially when players are pitching the curveball. PMID- 29024602 TI - Knockdown of CEMIP suppresses proliferation and induces apoptosis in colorectal cancer cells: downregulation of GRP78 and attenuation of unfolded protein response. AB - It has been suggested that cell migration inducing hyaluronan binding protein (CEMIP) contributes to the carcinogenesis of colorectal cancer (CRC). Cancer cells can adapt to endoplasmic reticulum (ER) stress by initiating an unfolded protein response (UPR). This study aimed to investigate whether CEMIP affects the UPR of CRC cells, with a focus on 78 kDa glucose-regulated protein (GRP78, a major ER chaperone). We found that knockdown of CEMIP inhibited cell proliferation and induced a G1 arrest in SW480 CRC cells. The levels of cyclin D1 and cyclin E1 and phospho-retinoblastoma, which are known to promote the cell cycle progression from G0 or G1 into S phase, were decreased in CEMIP-silenced cells. CEMIP shRNA induced apoptosis and inhibited GRP78 expression in SW480 and Colo205 cells. The basal UPR of cancer cells was attenuated by CEMIP shRNA, as evidenced by the decreased expression of UPR sensors, protein kinase R-like endoplasmic reticulum kinase (PERK), inositol requiring enzyme 1 (IRE1), and activating transcription factor 6 (ATF6). Furthermore, CEMIP silencing sensitized CRC cells to thapsigargin-induced apoptosis. Our study demonstrates that the in vitro anti-proliferative and pro-apoptotic effects in CRC cells that were induced by silencing CEMIP may be associated with GRP78 repression and UPR attenuation. PMID- 29024603 TI - Exercise tolerance during muscle contractions below and above the critical torque in different muscle groups. AB - The objective of this study was to test the hypotheses that end-test torque (ET) (expressed as % maximal voluntary contraction; MVC) is higher for plantar flexors (PF) than knee extensors (KE) muscles, whereas impulse above ET (IET) is higher for KE than PF. Thus, we expected that exercise tolerance would be longer for KE than PF only during the exercise performed above ET. After the determination of MVC, 40 men performed two 5-min all-out tests to determine ET and IET. Eleven participants performed a further 4 intermittent isometric tests, to exhaustion, at ET + 5% and ET - 5%, and 1 test for KE at the exercise intensity (%MVC) corresponding to ET + 5% of PF. The IET (7243.2 +/- 1942.9 vs. 3357.4 +/- 1132.3 N.m.s) and ET (84.4 +/- 24.8 vs. 73.9 +/- 19.5 N.m) were significantly lower in PF compared with KE. The exercise tolerance was significantly longer for PF (300.7 +/- 156.7 s) than KE (156.7 +/- 104.3 s) at similar %MVC (~60%), and significantly shorter for PF (300.7 +/- 156.7 s) than KE (697.0 +/- 243.7 s) at ET + 5% condition. However, no significant difference was observed for ET - 5% condition (KE = 1030.2 +/- 495.4 s vs. PF = 1028.3 +/- 514.4 s). Thus, the limit of tolerance during submaximal isometric contractions is influenced by absolute MVC only during exercise performed above ET, which seems to be explained by differences on both ET (expressed as %MVC) and IET values. PMID- 29024605 TI - Hip and Ankle Kinematics in Noncontact Anterior Cruciate Ligament Injury Situations: Video Analysis Using Model-Based Image Matching. AB - BACKGROUND: Detailed kinematic descriptions of real anterior cruciate ligament (ACL) injury situations are limited to the knee only. PURPOSE: To describe hip and ankle kinematics as well as foot position relative to the center of mass (COM) in ACL injury situations through use of a model-based image-matching (MBIM) technique. The distance between the projection of the COM on the ground and the base of support (BOS) (COM_BOS) normalized to the femur length was also evaluated. STUDY DESIGN: Descriptive laboratory study. METHODS: Ten ACL injury video sequences from women's handball and basketball were analyzed. Hip and ankle joint kinematic values were obtained by use of MBIM. RESULTS: The mean hip flexion angle was 51 degrees (95% CI, 41 degrees to 63 degrees ) at initial contact and remained constant over the next 40 milliseconds. The hip was internally rotated 29 degrees (95% CI, 18 degrees to 39 degrees ) at initial contact and remained unchanged for the next 40 milliseconds. All of the injured patients landed with a heel strike with a mean dorsiflexion angle of 2 degrees (95% CI, -9 degrees to 14 degrees ), before reaching a flatfooted position 20 milliseconds later. The foot position was anterior and lateral to the COM in all cases. However, none of the results showed larger COM_BOS than 1.2, which has been suggested as a criterion for ACL injury risk. CONCLUSIONS: Hip kinematic values were consistent among the 10 ACL injury situations analyzed; the hip joint remained unchanged in a flexed and internally rotated position in the phase leading up to injury, suggesting that limited energy absorption took place at the hip. In all cases, the foot contacted the ground with the heel strike. However, relatively small COM_BOS distances were found, indicating that the anterior and lateral foot placement in ACL injury situations was not different from what can be expected in noninjury game situations. PMID- 29024606 TI - Role of the TSLP-DC-OX40L pathway in asthma pathogenesis and airway inflammation in mice. AB - This study aimed to explore the effect of the TSLP-DC-OX40L pathway in asthma pathogenesis and airway inflammation in mice. For this, 65 male BALF/c mice were distributed among the control, asthma, immunoglobulin G (IgG) + asthma (IgG, 500 MUg/500 MUL, intratracheal injection of 50 MUL each time), LY294002 (OX40L inhibitor) + asthma (intratracheal injection of 2 mg/kg LY294002), and anti-TSLP + asthma (intratracheal injection of 500 MUg/500 MUL TSLP antibody, 50 MUL each time) groups. ELISA was applied to measure the serum levels of immunoglobulin E (IgE), ovalbumin (OVA)-sIgE, interleukin-4 (IL-4), IL-5, IL-13, and interferon gamma (IFN-gamma); flow cytometry was employed to detect Treg cells and dendritic cell (DC) and lymphopoiesis. RT-qPCR and Western blot assays were used to measure the levels of TSLP, OX40L, T-bet, GATA-3, NF-kappaB, p38, and ERK. Treatment with LY294002 and anti-TSLP resulted in increases in the numbers of total cells, eosinophils, neutrophils, and lymphocytes in the bronchoalveolar lavage fluid; total serum levels of IgE, OVA-sIgE, IL-4, IL-5, and IL-13; levels of DC cells; lymphopoiesis; and levels of TSLP, OX40L, GATA-3, NF-kappaB, p38, and ERK, whereas there were decreases in the levels of IFN-gamma and CD4+CD25+Treg cells; CD4+Foxp3+Treg cells; and T-bet. The TSLP-DC-OX40L pathway may contribute to asthma pathogenesis and airway inflammation by modulating the levels of CD4+CD25+Treg cells and inflammatory cytokines. PMID- 29024604 TI - The avian embryo as a model for fetal alcohol spectrum disorder. AB - Prenatal alcohol exposure (PAE) remains a leading preventable cause of structural birth defects and permanent neurodevelopmental disability. The chicken (Gallus gallus domesticus) is a powerful embryological research model, and was possibly the first in which the teratogenicity of alcohol was demonstrated. Pharmacologically relevant exposure to alcohol in the range of 20-70 mmol/L (20 80 mg/egg) disrupt the growth of chicken embryos, morphogenesis, and behavior, and the resulting phenotypes strongly parallel those of mammalian models. The avian embryo's direct accessibility has enabled novel insights into the teratogenic mechanisms of alcohol. These include the contribution of IGF1 signaling to growth suppression, the altered flow dynamics that reshape valvuloseptal morphogenesis and mediate its cardiac teratogenicity, and the suppression of Wnt and Shh signals thereby disrupting the migration, expansion, and survival of the neural crest, and underlie its characteristic craniofacial deficits. The genetic diversity within commercial avian strains has enabled the identification of unique loci, such as ribosome biogenesis, that modify vulnerability to alcohol. This venerable research model is equally relevant for the future, as the application of technological advances including CRISPR, optogenetics, and biophotonics to the embryo's ready accessibility creates a unique model in which investigators can manipulate and monitor the embryo in real time to investigate the effect of alcohol on cell fate. PMID- 29024607 TI - Development of an Automatic Puncturing and Sampling System for a Self-Monitoring Blood Glucose Device. AB - BACKGROUND: Performing self-monitoring of blood glucose (SMBG) is a clinical challenge for elderly people with low dexterity. An all-in-one-type SMBG device that can simply and easily puncture and monitor would be useful for them. We developed an automatic skin-puncturing and blood-sampling (APS) system for introducing of an all-in-one-type SMBG device. The aims of this study were to determine if the developed APS system, which has automatic puncturing, squeezing, and application functions, could provide sufficient blood sample volumes for SMBG and to determine the factors associated with failure in the use of the system by adult volunteers. METHODS: We investigated the success rate of obtaining a 0.8 MUL sample volume using the APS system and determined the factors associated with failure in 140 adult volunteers. The participant characteristics, induration of puncturing sites, and states of finger grip conditions were evaluated as factors of a puncturing failure. The participant characteristics, skin hydration, states of finger grip, skin elasticity of the finger pad, and blood flow were evaluated as factors of a squeezing failure. RESULTS: The success rate was 61.9%. Puncturing failure was 21.6%, and squeezing failure was 16.5%. Automatic puncturing factors associated with failure were male sex, larger finger diameter, and thicker finger pad. The only squeezing failure factor was lower peripheral skin temperature. CONCLUSIONS: Improvement of the finger station groove shape to prevent ischemia and the squeezing angle would be useful developments of the all in-one-type SMBG device for elderly people with decreased dexterity. PMID- 29024608 TI - Erastin-Like Anti-Warburg Agents Prevent Mitochondrial Depolarization Induced by Free Tubulin and Decrease Lactate Formation in Cancer Cells. AB - In Warburg metabolism, suppression of mitochondrial metabolism contributes to a low cytosolic ATP/ADP ratio favoring enhanced aerobic glycolysis. Flux of metabolites across the mitochondrial outer membrane occurs through voltage dependent anion channels (VDAC). In cancer cells, free dimeric tubulin induces VDAC closure and dynamically regulates mitochondrial membrane potential (DeltaPsi). Erastin, a small molecule that binds to VDAC, antagonizes the inhibitory effect of tubulin on VDAC and hyperpolarizes mitochondria in intact cells. Here, our aim was to identify novel compounds from the ChemBridge DIVERSet library that block the inhibitory effect of tubulin on DeltaPsi using cell-based screening. HCC4006 cells were treated with nocodazole (NCZ) to increase free tubulin and decrease DeltaPsi in the presence or absence of library compounds. Tetramethylrhodamine methylester (TMRM) fluorescence was assessed by high-content imaging to determine changes in DeltaPsi. Compounds were considered positive if DeltaPsi increased in the presence of NCZ. Using confocal microscopy, we identified and validated six lead molecules that antagonized the depolarizing effect of NCZ. Lead compounds and erastin did not promote microtubule stabilization, so changes in DeltaPsi were independent of tubulin dynamics. The most potent lead compound also decreased lactate formation. These novel small molecules represent a potential new class of anti-Warburg drugs. PMID- 29024609 TI - The Goldwater Rule: Perspectives From, and Implications for, Psychological Science. AB - When, if ever, should psychological scientists be permitted to offer professional opinions concerning the mental health of public figures they have never directly examined? This contentious question, which attracted widespread public attention during the 1964 U.S. presidential election involving Barry Goldwater, received renewed scrutiny during and after the 2016 U.S. presidential campaign, when many mental health professionals raised pointed questions concerning the psychiatric status of Donald Trump. Although the Goldwater Rule prohibits psychiatrists from offering diagnostic opinions on individuals they have never examined, no comparable rule exists for psychologists. We contend that, owing largely to the Goldwater Rule's origins in psychiatry, a substantial body of psychological research on assessment and clinical judgment, including work on the questionable validity of unstructured interviews, the psychology of cognitive biases, and the validity of informant reports and of L (lifetime) data, has been overlooked in discussions of its merits. We conclude that although the Goldwater Rule may have been defensible several decades ago, it is outdated and premised on dubious scientific assumptions. We further contend that there are select cases in which psychological scientists with suitable expertise may harbor a "duty to inform," allowing them to offer informed opinions concerning public figures' mental health with appropriate caveats. PMID- 29024610 TI - TOUGH: The Measure of Merit in Psychological Science. AB - Scientific careers depend largely on the evaluation of one's merit. Yet scientists agree that the measurement of merit is quite a complex endeavor. Some indicators exist, such as Hirsch's well-known h index, but none can fully capture the complexity of the notion of merit. We propose that the h factor should be complemented with additional useful measurements: the t, o, u, and g indexes. PMID- 29024611 TI - End-of-Life Care Conversations in Resident Care Conferences in Nursing Home Settings. PMID- 29024612 TI - Asynchronous Telepsychiatry: A Component of Stepped Integrated Care. AB - OBJECTIVE: Integrated behavioral healthcare models typically involve a range of consultation options for mental healthcare. Asynchronous telepsychiatry (ATP) consults may be an additional potential choice, so we are conducting a 5-year clinical trial comparing ATP with synchronous telepsychiatry (STP) consultations. METHODS: Patients referred by primary care providers are randomly assigned to one of the two treatment groups, ATP or STP. Clinical outcome, satisfaction, and economic data are being collected from patients for 2 years at 6-month intervals. RESULTS: Baseline characteristics for the first 158 patients and case examples of ATP are presented. CONCLUSION: Implementing ATP in existing integrated behavioral healthcare models could make mental healthcare more efficient. PMID- 29024613 TI - Remote Monitoring of Automated Peritoneal Dialysis Patients: Assessing Clinical and Economic Value. AB - BACKGROUND: For chronic kidney disease patients who progress to end-stage renal disease, survival is dependent on renal replacement therapy in the form of kidney transplantation or chronic dialysis. Peritoneal dialysis (PD), which can be performed at home, is both more convenient and less costly than hemodialysis that requires three 4-h visits per week to the dialysis facility and complicated equipment. Remote therapy management (RTM), technologies that collect medical information and transmit it to healthcare providers for patient management, has the potential to improve the outcomes of patients receiving automated peritoneal dialysis (APD) at home. OBJECTIVE: Estimate through a simulation study the potential impact of RTM on APD patients use of healthcare resources and costs in the United States, Germany, and Italy. METHODS: Twelve APD patient profiles were developed to reflect potential clinical scenarios of APD therapy. Two versions of each profile were created to simulate healthcare resource use, one assuming use of RTM and one with no RTM. Eleven APD teams (one nephrologist, one nurse) estimated resources that would be used. RESULTS: Results from U.S., German, and Italian clinicians found that RTM could avoid use of 59, 49, and 16 resources over the 12 profiles, respectively. Estimated reduced utilization across the three countries ranged from one to two hospitalizations, one to four home visits, two to five emergency room visits, and four to eight unplanned clinic visits. Total savings across all scenarios were $23,364 in the United States, $11,477 in Germany, and $7,088 in Italy. CONCLUSION: In a simulated environment, early intervention enabled by RTM reduced healthcare resource utilization and associated costs. PMID- 29024614 TI - Staphylococcus aureus Infections in German Patients with Type 2 Diabetes Mellitus after Orthopedic Surgery: Incidence, Risk Factors, and Clinical and Health Economic Outcomes. AB - BACKGROUND: This study assessed Staphylococcus aureus infection risk in patients with type 2 diabetes mellitus (T2DM) undergoing an orthopedic knee, hip, or spine surgery. PATIENTS AND METHODS: All patients with a diagnosis of T2DM in the period from 2010 to 2012 were identified from a German claims database. First inpatient knee, hip, or spine surgery was used as index date. Cumulative incidence of S. aureus infections was calculated for several time intervals. Risk factors were identified based on a multi-variable Cox regression analysis. A case control analysis was conducted to assess mortality, healthcare resource utilization, and healthcare costs of S. aureus. RESULTS: In total, 9,401 patients with T2DM underwent a knee, hip, or spine surgery. Mean age was 72.58 years, 63.32% were female, and 1.08% experienced an S. aureus infection in the 365-day follow-up period. The difference in all-cause direct treatment costs per patient year between infected and non-infected patients was 24,437.50$. Mortality rates were 25.52% (S. aureus group) versus 5.22% (non-S. aureus group), based on a 365 day follow-up. CONCLUSIONS: Staphylococcus aureus is associated with a substantial healthcare burden and high mortality. Effective infection control measures should be considered to reduce post-surgical S. aureus infection risk in patients with T2DM. PMID- 29024615 TI - Molecular confirmation of Hepatozoon canis in Mauritius. AB - In this study, Hepatozoon species was molecularly identified and characterized for the first time on the Indian Ocean island of Mauritius. Partial sequences of the 18S rRNA gene of the Hepatozoon isolates were analysed from three naturally infected dogs. The sequences of H. canis were similar to the 18S rRNA partial sequences (JX112783, AB365071 99%) from dog blood samples from West Indies and Nigeria. Our sequences were deposited in the GenBank database. PMID- 29024616 TI - Investigation of infectious reproductive pathogens of large ruminants: Are neosporosis, brucellosis, leptospirosis and BVDV of relevance in Lao PDR? AB - N. caninum, bovine viral diarrhoea virus, Brucella abortus and Leptospira interrogans serovar Hardjo are globally significant reproductive pathogens that cause abortion and reproductive loss in large ruminants. Prevalence information is lacking in Lao People's Democratic Republic (Laos) despite the poor reproductive performance of cattle and buffalo. Serological examination of frozen cattle (n=90) and buffalo (n=61) sera by commercially available enzyme-linked immunosorbent assays provided the first reported screening of some of these pathogens in Laos. Seroprevalence differed amongst these large ruminant species, with N. caninum, BVDV and L. interrogans serovar Hardjo antibodies found in 68.9% (95% CI+/-11.6), 4.9% (95% CI+/-5.4) and 3.3% (95% CI+/-4.5) of buffalo sera, respectively, and in 7.8% (95% CI+/-5.5), 10.0% (95% CI+/-6.2) and 22.2% (95% CI+/-8.6) of cattle sera, respectively. Buffalo sera had a significantly higher seroprevalence of N. caninum compared to cattle (p<0.001) and cattle sera had a significantly higher seroprevalence of L. interrogans serovar Hardjo compared to buffalo (p=0.003). Variability was also observed across provinces for N. caninum in buffalo (p=0.007) and for L. interrogans serovar Hardjo in cattle (p=0.071), suggesting provincial risk factors conducive to pathogen transmission. BVDV and N. caninum seropositivity were negatively associated in buffalo (p=0.018) and cattle (p=0.003). In buffalo, L. interrogans serovar Hardjo and BVDV seropositivity were associated (p=0.035, p=0.039). The identification of antibodies against three major abortifacient pathogens in Laos prompts further research to determine if infection is associated with low reproductive efficiency and the risk factors for infection. This is needed for the development of evidence based prevention strategies for improved large ruminant reproductive management among smallholders in Laos. PMID- 29024617 TI - STM2360 encodes a d-ornithine/d-lysine decarboxylase in Salmonella enterica serovar typhimurium. AB - STM2360 is a gene located in a small operon of undetermined function in Salmonella enterica serovar Typhimurium LT2. The amino acid sequence of STM2360 shows significant similarity (~30% identity) to diaminopimelate decarboxylase (DapDC), a Fold III pyridoxal-5'-phosphate (PLP) dependent enzyme involved in l lysine biosynthesis. We have found that the protein coded by STM2360 has a previously undocumented catalytic activity, d-ornithine/d-lysine decarboxylase (DOKDC). The reaction products, cadaverine and putrescine, respectively, were identified by NMR and mass spectrometry. The substrate specificity of DOKDC is d Lysine > d-Ornithine. This is the first pyridoxal-5'-phosphate dependent decarboxylase identified to act on d-amino acids. STM2358, located in the same operon, has ornithine racemase activity. This suggests that the physiological substrate of the decarboxylase and the operon is ornithine. Homologs of STM2360 with high sequence identity (>80%) are found in other common enterobacteria, including species of Klebsiella, Citrobacter, Vibrio and Hafnia, as well as Clostridium in the Firmicutes, and Pseudomonas. PMID- 29024618 TI - Association of serum asymmetric dimethylarginine, homocysteine, and l-arginine concentrations during early pregnancy with hypertensive disorders of pregnancy. AB - BACKGROUND: Our previous study suggested that a lower l-arginine level (<70MUM) at early gestation is associated with pregnancy-induced hypertension. The maternal asymmetric dimethylarginine (ADMA) and homocysteine (Hcy) concentrations also have been reported to be increased in hypertensive disorders of pregnancy (HDP). These molecules have a key role in metabolism of nitric oxide. The aim of this study is to determine the most useful predictor of HDP at early gestation. METHODS: The concentrations of ADMA and Hcy at each of three periods in normal pregnancy were determined, and the values compared between the normal pregnancy and HDP groups. Moreover, the possible risk factors for the development of HDP also were evaluated using a multivariate logistic regression model and propensity score (PS). RESULTS: The maternal ADMA concentration was significantly elevated with advance of gestational age, while Hcy concentration was decreased from early to mid-gestation and increased from mid- to late-gestation in normal pregnancy. The maternal Hcy concentration at early gestation was significantly higher in the HDP group compared to that in the normal group. A higher maternal Hcy level (>7.2MUM) in early pregnancy was independently associated with the development of HDP (PS-adjusted odds ratio=4.47, 95% confidence interval=1.51-12.82), as well as pre-pregnancy overweight [body mass index (BMI)>25kg/m2], primipara status, and a lower maternal l-arginine level (<70MUM). CONCLUSIONS: The risk factors, such as overweight (BMI>25kg/m2) before pregnancy, primipara status, higher Hcy (>7.2MUM), and lower l-arginine (<70MUM) concentration in early pregnancy, for development of HDP were detected. PMID- 29024619 TI - Korean pediatric reference intervals for FT4, TSH, and TPO Ab and the prevalence of thyroid dysfunction: A population-based study. AB - BACKGROUND: The appropriate age-related reference intervals for thyroid stimulating hormone (TSH) and free thyroxine (FT4) are important in interpreting the results of thyroid function tests in children and adolescents. However, these reference intervals are scanty. This study aimed to establish the reference intervals for FT4, TSH, and thyroid peroxidase antibody (TPO Ab), and identify the epidemiological prevalence of thyroid dysfunction in a Korean pediatric population. METHODS: The data from a sample of 2042 children and adolescents aged 10-18years who underwent a nationwide Korean representative sampling and cross sectional survey with blood collection for a thyroid function test using an electrochemiluminescence immunoassay were evaluated. RESULTS: Based on the National Academy of Clinical Biochemistry (NACB) criteria, the median and range (2.5th - 97.5th percentile) for FT4 and TSH in total were 16.47pmol/L (12.61 21.49pmol/L) and 2.48mIU/L (0.63-7.03mIU/L), respectively. Positive TPO Ab (3.1%) by NACB was >19.16kIU/L (boys) and >29.30kIU/L (girls) for adolescents aged 10 18years. FT4 and TSH were associated with increasing and decreasing age, respectively. Boys' FT4 and girls' TPO Ab levels were greater than for the other sex, respectively. Using the new reference interval, overt hypothyroidism, subclinical hypothyroidism, subclinical hyperthyroidism, and overt hyperthyroidism were found in 0.5%, 2.1%, 1.3%, and 1.2%, respectively, of Korean children and adolescents. CONCLUSIONS: This study provides evidence-based age- and sex-specific reference intervals for thyroid hormones and autoantibodies, and identifies the current prevalence of thyroid dysfunction in a Korean pediatric group. PMID- 29024620 TI - Zinc oxide nanoparticles inhibit dimethylnitrosamine induced liver injury in rat. AB - Dimethylnitrosamine (DMN) is a potent hepatotoxic, carcinogenic and mutagenic compound. It induces massive liver cell necrosis and death in experimental animals. Several drugs have been tested in the past for their protective behavior against DMN toxicity. However, it is for the first time that therapeutic intervention of ZnONPs (zinc oxide nanoparticles) has been studied against its toxicity. Present results show that a post treatment of ZnONPs (50 mg/kg) to DMN (2 MUl/100 g body weight) treated rats reduces lipid peroxidation, oxidative stress and fibrosis in the liver. It diminishes serum ALT (alanine transaminases), AST (aspartate transaminases) and LDH (lactate dehydrogenase) showing improvement in liver function. Reduced values of proinflammatory cytokines viz. TNF-alpha and IL-12 also support its protective effects. Histopathological observations also indicate improvement in liver cell morphology. It is postulated that ZnONPs offer protection through selective toxicity to proliferating tissue including adenomatous islands formed in the liver. Zinc metallothionein (Zn-MT) induced by ZnONPs may also contribute in the amelioration of DMN induced toxic effects. Diminution of oxidative stress by ZnONPs remains to be the key mechanism involved in its protective effects. However, toxicity of ZnONPs in the liver needs to be monitored simultaneously. PMID- 29024621 TI - Is Atypical Swallowing Associated With Relapse in Orthognathic Patients? A Retrospective Study of 256 Patients. AB - PURPOSE: To determine the association of atypical swallowing (AS) with relapse in patients undergoing combined orthodontic and orthognathic treatment. MATERIALS AND METHODS: In this retrospective cohort study, the clinical data of all patients who underwent combined surgical and orthodontic treatment from 1998 through 2015 at the University Hospital of Geneva (Geneva, Switzerland) were reviewed. The primary outcome variables were 1) AS and 2) post-treatment relapse. Other variables included, age, gender, dentofacial deformity (facial asymmetry, mandibular deficiency, mandibular excess, maxillary retrusion, open bite), surgical procedure performed (bilateral sagittal split osteotomy [BSSO] with or without Le Fort I osteotomy), and dental interocclusal relations according to Angle. RESULTS: Of the 256 patients investigated, 23 (9%) showed relapse at 1 year after treatment. Multivariate analysis showed that AS status (before treatment, odds ratio [OR] = 9.44, P = .005; after treatment, OR = 56.17, P < .001; before and after treatment, OR = 20.49, P < .001) was significantly associated with relapse. The presence of a pretreatment open bite also was associated with an increased risk of relapse (OR = 0.04, P < .001) regardless of AS status. CONCLUSION: The present study showed that in orthognathic patients 1) AS was associated with relapse regardless of dentofacial deformity or surgical procedure performed and 2) AS can appear after treatment in patients who were initially free of it. PMID- 29024622 TI - Smoking-Cessation Efforts by US Adult Smokers with Medical Comorbidities. AB - BACKGROUND: Continued cigarette smoking by individuals with chronic medical diseases can adversely affect their symptoms, disease progression, and mortality. We assessed the association between medical comorbidities and smoking-cessation efforts among US adult smokers. METHODS: We analyzed cross-sectional data from 12,494 past-year cigarette smokers aged >=18 years from Wave 1 (2013-2014) of the nationally representative Population Assessment of Tobacco and Health study. We assessed the association between self-reported medical comorbidities and past year quit attempts, use of evidence-based smoking-cessation treatment or electronic cigarettes, and successful smoking cessation using logistic regression, adjusting for sociodemographics, insurance status, geographic region, and having a past-year doctor visit. RESULTS: In the study sample, 39% were aged 18 to 34 years, 45% were female, 70% were non-Hispanic white, and 48% reported >=1 comorbidity. Smokers with any comorbidity, compared with those without comorbidities, had higher odds of trying to quit (adjusted odds ratio, 1.19; 95% confidence interval, 1.08-1.30), but no higher likelihood of quitting success. Having more medical comorbidities was associated with increased odds of trying to quit. Smokers with a comorbidity used evidence-based treatment more often than smokers without comorbidities (43% vs 26%); use of e-cigarettes to quit was similar between smokers with and without comorbidities (27% vs 28%). CONCLUSIONS: Adult smokers with chronic medical diseases try to quit and use evidence-based tobacco-cessation treatment more often than smokers without comorbidities, but they are no more likely to quit, suggesting that their quit attempts are less likely to succeed. Smokers with medical comorbidities may require more intensive, prolonged, and repeated treatment to stop smoking. PMID- 29024623 TI - Acute Colitis in a Patient with Streptococcus pyogenes Bacteremia. PMID- 29024624 TI - Prognostic Impact of Mild Hypokalemia in Terms of Death and Stroke in the General Population-A Prospective Population Study. AB - BACKGROUND: Potassium supplementation reduces the risk of cardiovascular mortality and stroke in population studies; however, the prognostic impact of mild hypokalemia in the general population has not been thoroughly investigated. We aimed to investigate associations between mild hypokalemia and endpoints in the general population. METHODS: Participants (aged 48-76 years) from the general population study "Copenhagen City Heart Study" (n = 5916) were studied. Participants were divided into groups according to baseline values of plasma potassium (potassium): hypokalemia (<3.7 mmol/L, n = 758), normokalemia (3.7-4.5 mmol/L, n = 4973), and high potassium (>4.5 mmol/L, n = 185). Hypokalemia was further divided as potassium <3.4 mmol/L and 3.4-3.6 mmol/L. The primary endpoints were all-cause mortality and nonfatal validated ischemic stroke. The secondary endpoint was acute myocardial infarction (AMI). We adjusted for conventional risk factors, diuretics, and atrial fibrillation at baseline. RESULTS: Mean potassium in the hypokalemic group was 3.5 mmol/L (range, 2.6-3.6 mmol/L) and was associated (P < 0.05) with increased systolic blood pressure, higher CHA2DS2-VASc score, and increased use of diuretics as compared with normokalemia. Baseline atrial fibrillation was equally frequent across groups. Median follow-up-time was 11.9 years (Q1-Q3: 11.4-12.5 years). Hypokalemia was borderline associated with increased stroke risk in a multivariable Cox model (including adjustment for competing risk) as compared with normokalemia (hazard ratio [HR] 1.40; 95% confidence interval [CI], 1.00-1.98). The subgroup with potassium <3.4 mmol/L had higher stroke risk (HR 2.10; 95% CI, 1.19-3.73) and mortality risk (HR 1.32; 95% CI, 1.01-1.74) as compared with normokalemia. Hypokalemia was not associated with AMI, and no increased risk of mortality was seen with concomitant AMI and hypokalemia. No associations were seen with high potassium. CONCLUSION: In a general population mild hypokalemia is associated with increased stroke risk and, to a lesser degree, increased mortality risk. PMID- 29024625 TI - Effect of Health Plan Financial Incentive Offering on Employees with Prediabetes. AB - BACKGROUND: Prediabetes may be improved or reversed with lifestyle interventions. A worksite wellness program offering financial incentives for participation may be effective in improving the health of employees with prediabetes. We studied the effect of employee health plan financial incentives on health outcomes for employees with prediabetes. METHODS: We conducted a retrospective cohort study using electronic medical record data from January 2008 to December 2012. Our study participants were employees with prediabetes and propensity-matched non employees with prediabetes and commercial health insurance, all receiving care within one health system. Exposures included fixed annual financial incentives for program participation and later a premium discount divided between program participation and achievement of goals. We used longitudinal linear mixed models to assess yearly changes in glycosylated hemoglobin (HbA1c), weight, and low density lipoprotein cholesterol in employees versus non-employees. We also compared outcomes of employees by ever- versus never- program participant status. RESULTS: Our study population included 1005 employees and 1005 matched non employees. The yearly reduction in HbA1c for employees versus matched non employees did not differ in 2008-2010 but was greater in 2010-2012, when incentives were tied to program participation as well as achievement of goals ( 0.10% vs -0.08 %, respectively; P for difference in change [DIC] = .01 from 2010 to 2012). Analyses from both periods showed that employees lost more weight per year than matched non-employees (-1.85 vs -0.21 lb [1 lb=0.45 kg] from 2008 to 2010; P for DIC < .001 and -2.35 vs -0.65 lb from 2010 to 2012; P for DIC < .001). Employees who participated in disease management lost more weight than those who did not (-2.14 vs 0.79 lb yearly before 2010 and -2.82 vs -0.91 after January 1, 2010, P for DIC < .01 and < .001, respectively). CONCLUSION: A worksite wellness program offering health plan financial incentives for participation and outcomes was associated with improvements in weight and HbA1c. PMID- 29024626 TI - Patient with Gluten Encephalopathy Presenting with Neuropsychiatric Symptoms. PMID- 29024627 TI - Myostatin inhibits eEF2K-eEF2 by regulating AMPK to suppress protein synthesis. AB - Growth of skeletal muscle is dependent on the protein synthesis, and the rate of protein synthesis is mainly regulated in the stage of translation initiation and elongation. Myostatin, a member of the transforming growth factor-beta (TGF-beta) superfamily, is a negative regulator of protein synthesis. C2C12 myotubes was incubated with 0, 0.01, 0.1, 1, 2, 3 MUg/mL myostatin recombinant protein, and then we detected the rates of protein synthesis by the method of SUnSET. We found that high concentrations of myostatin (2 and 3 MUg/mL) inhibited protein synthesis by blocking mTOR and eEF2K-eEF2 pathway, while low concentration of myostatin (0.01, 0.1 and 1 MUg/mL) regulated eEF2K-eEF2 pathway activity to block protein synthesis without affected mTOR pathway, and myostatin inhibited eEF2K eEF2 pathway through regulating AMPK pathway to suppress protein synthesis. It provided a new mechanism for myostatin regulating protein synthesis and treating muscle atrophy. PMID- 29024628 TI - Biologico-clinical significance of DNMT3A variants expression in acute myeloid leukemia. AB - DNA methyltransferase 3A (DNMT3A) catalyzes de novo DNA methylation and plays important roles in the pathogenesis of acute myeloid leukemia. However, the expression status of DNMT3A variants in acute myeloid leukemia remains obscure. This study aimed to assess the expression levels of alternative splicing of DNMT3A variants and explore their roles in acute myeloid leukemia (AML). DNMT3A variants gene expression were assessed, measuring their effects on cell proliferation. In addition, the expression of DNMT3A variants were evaluated in acute myeloid leukemia patients. Four DNMT3A variants were identified, with DNMT3A1 and DNMT3A2V found to be dominant in acute myeloid leukemia cell lines. Moreover, DNMT3A2V overexpression delayed cell proliferation; while, DNMT3A2V R882H mutation promoted cell proliferation. Further, DNMT3A1 and DNMT3A2V were detected in newly diagnosed acute myeloid leukemia (AML) patients and controls with non-malignant hematological disease, with DNMT3A2V significantly up regulated in AML patients. The main transcript switched from DNMT3A1 to DNMT3A2V in some patients, especially the low risk group based on the NCCN 2016 guidelines. These findings suggest that DNMT3A1 and DNMT3A2V are the main variants in acute myeloid leukemia with different clinical association, and might play important roles in the pathophysiology of acute myeloid leukemia. PMID- 29024629 TI - The role of WT1 isoforms in vasculogenic mimicry and metastatic potential of human triple negative breast cancer cells. AB - Triple negative breast cancer (TNBC) is highly aggressive and has a few therapeutic treatments, so new targeted therapy and biomarkers are required to provide alternative choices for treating TNBC patients. Recent studies showed that vasculogenic mimicry (VM), the formation of blood channels by aggressive cancer cells that mimic endothelial cells, is a factor contributing to poor prognosis in TNBC. Wilms' tumor 1 (WT1) gene has been found to be highly expressed in TNBC, and has 4 major distinct isoforms; isoform A (-17AA/-KTS; -/ ), isoform B (+17AA/-KTS; +/-), isoform C (-17AA/+KTS; -/+) and isoform D (+17AA/+KTS; +/+). The involvement of each WT1 isoform in TNBC progression remains largely unclear. In this study, WT1 isoform-overexpressing cell sublines were established from a TNBC cell line, MDA-MB-231, by stable transfection, and the aggressive behavior of the cell sublines were evaluated. Only the WT1 isoform B- and isoform C-overexpressing cell sublines showed the significant increase in VM forming capability compared to the parental cell line and other isoform cell sublines. qRT-PCR was used to explore the change in expression level of two VM related genes, EphA2 and VE-cadherin. All WT1 isoform cell sublines showed up regulation of EphA2 but the levels detected in the isoform B- and isoform C-cell sublines were higher than those observed in other cell sublines. In contrast, significant up-regulation of VE-cadherin was found only in isoform A- and isoform D-cell sublines. Isoform B- and isoform C-cell sublines showed higher rates of cell migration compared to those of other cell sublines, as determined by both wound healing and Transwell assays. Gelatin zymography revealed increased MMP-9 enzyme production in isoform D-cell subline compared to the parental cell line, but this change was not observed in other cell sublines. Western blot analysis showed significantly increased expression of beta-catenin in isoform B- and isoform C-cell sublines, compared to parental cell line and other isoform cell sublines. In conclusion, our findings demonstrate that WT1 isoforms play different roles in modulating the VM-forming capacity and metastatic potential of TNBC cells. PMID- 29024630 TI - Improved chemoradiation treatment using trifluridine in human colorectal cancer cells in vitro. AB - We aimed to assess the combined effect of trifluridine (FTD) and ionizing radiation (IR) on colorectal cancer cells in vitro. Colorectal cancer cells, HT 29, HCT-15, and HCT 116, showing low, medium, and high sensitivity to IR, respectively, were treated with the combinations of FTD and IR, and evaluated by the clonogenic survival assay. The radiation dose modification factors (DMFs) were calculated as the ratio of radiation doses producing equivalent surviving fractions following the FTD/IR treatment, or IR alone. DMFs of 4 MUM FTD followed by 8 Gy of IR were 2.7, 1.5, and 1.2 for HT-29, HCT-15, and HCT 116, respectively, whereas those of 8 Gy of IR followed by FTD were 1.6, 1.4, and 1.0 for these cells, respectively. Intracellular DNA double-strand break levels after IR and FTD were significantly higher than those observed following the IR treatment alone, regardless of whether the IR was applied before or after FTD. RAD51 expression levels were shown to be increased in FTD and IR treated cells. Apoptotic proteins, such as cleaved PARP and cleaved caspase-3, were detected in cells treated with the combination of FTD and IR, while their expression was not significantly induced after IR or FTD treatment alone. These findings suggest that FTD enhances the efficacy of IR and provide a rationale for designing novel combination chemoradiotherapy regimens containing FTD for patients with rectal cancer that are insensitive to the radiation treatment. PMID- 29024631 TI - Luteoloside induces G0/G1 arrest and pro-death autophagy through the ROS-mediated AKT/mTOR/p70S6K signalling pathway in human non-small cell lung cancer cell lines. AB - Autophagy has attracted a great deal of interest in tumour therapy research in recent years. However, the anticancer effect of luteoloside, a naturally occurring flavonoid isolated from the medicinal plant Gentiana macrophylla, on autophagy remains poorly understood in human lung cells. In the present study, we have investigated the anticancer effects of luteoloside on non-small cell lung cancer (NSCLC) cells and demonstrated that luteoloside effectively inhibited cancer cell proliferation, inducing G0/G1 phase arrest associated with reduced expression of CyclinE, CyclinD1 and CDK4; we further found that treatment with luteoloside did not strongly result in apoptotic cell death in NSCLC (A549 and H292) cells. Interestingly, luteoloside induced autophagy in lung cancer cells, which was correlated with the formation of autophagic vacuoles, breakdown of p62, and the overexpression of Beclin-1 and LC3-II, but not in a human bronchial epithelial cell line (BEAS-2B). Notably, pretreatment of cancer cells with 3-MA, an autophagy inhibitor, protected against autophagy and promoted cell viability but not apoptosis. To further clarify whether luteoloside-induced autophagy depended on the PI3K/AKT/mTOR/p70S6K signalling pathway, a major autophagy suppressive cascade, cells were treated with a combination of AKT inhibitor (LY294002) and mTOR inhibitor (Rap). These results demonstrated that luteoloside induced autophagy in lung cancer cell lines by inhibiting the pathway at p-Akt (Ser473), p-mTOR and p-p70S6K (Thr389). Moreover, we observed that luteoloside induced cell autophagy was correlated with production of reactive oxygen species (ROS). NAC-mediated protection against ROS clearly implicated ROS in the activation of autophagy and cell death. In addition, the results showed that ROS served as an upstream effector of the PI3K/AKT/mTOR/p70S6K pathway. Taken together, the present study provides new insights into the molecular mechanisms underlying luteoloside-mediated cell death in NSCLC cells and supports luteoloside as a potential anti-cancer agent for targeting NSCLC through the induction of autophagy, inhibition of proliferation and PI3K/AKT/mTOR/p70S6K signalling. PMID- 29024632 TI - Quantitative proteome analysis of bovine mammary gland reveals protein dynamic changes involved in peak and late lactation stages. AB - Mammary gland is an important organ for milk synthesis and secretion. It undergoes dramatic physiological changes to adapt the shift from peak to late lactation stage. Protein plays a final very vital role in many life functions, and the protein changes during different lactation stages potentially reflect the biology of lactation and the functions of mammary gland in cows. In current study, we adopted tandem mass tags label-based quantitative analysis technique and to investigate proteome changes occurring in bovine mammary gland from peak to late lactation stages. A total of 3753 proteins from mammary tissues taken at two lactation points from four individual cows by biopsy were quantified, out of which 179 proteins were expressed differentially between two stages. We observed five new DEPs (AACS, DHCR7, GSTM3, SFRP1 and SFRP4) and nine functional well studies known proteins (PLIN2, LPIN1, PLIN3, GSN, CD74, MMP2, SOD1, SOD3 and GPX3) related to milk performance and mammary morphology. Bioinformatics analyses of the DEPs showed a majority of the up-regulated proteins during late lactation stage were related to apoptosis and immune process, while the downregulated proteins were mainly involved in localization, lipid metabolic and transport process. This suggests that the mammary gland can adapt to different molecular functions according to the biological need of the animal. From the integrated analysis of the differentially expressed proteins with known quantitative trait loci and genome-wide association study data, we identified 95 proteins may potentially affect milking performance. We expect findings in this study could be a valuable resource for future studies investigating the bovine proteome and functional studies. PMID- 29024633 TI - The Healthy and Diseased Microenvironments Regulate Oligodendrocyte Properties: Implications for Regenerative Medicine. AB - White matter disorders are characterized by deficient myelin or myelin loss, lead to a range of neurologic dysfunctions, and can result in early death. Oligodendrocytes, which are responsible for white matter formation, are the first targets for treatment. However, many studies indicate that failure of white matter repair goes beyond the intrinsic incapacity of oligodendrocytes to (re)generate myelin and that failed interactions with neighboring cells or factors in the diseased microenvironment can underlie white matter defects. Moreover, most of the white matter disorders show specific white matter pathology caused by different disease mechanisms. Herein, we review the factors within the cellular and the extracellular microenvironment regulating oligodendrocyte properties and discuss stem cell tools to identify microenvironmental factors of importance to the development of improved regenerative medicine for patients with white matter disorders. PMID- 29024635 TI - Keeping Time in a Relay Race for Fat. AB - Gut microbes impact host metabolism via a multitude of mechanisms, including through host circadian rhythm regulation. How microbes influence host circadian networks remains unclear. Recently, Wang et al. (2017) showed that crosstalk between specific microbial components and innate immune cells tunes epithelial circadian oscillations via Nfil3, modulating lipid uptake and metabolism. PMID- 29024636 TI - IFN-Lambda: The Key to Norovirus's Secret Hideaway. AB - The cellular tropism of noroviruses in immune-competent hosts remains enigmatic. In recent studies in Cell Host & Microbe and Immunity, Lee et al. (2017) and Tomov et al. (2017) determine that norovirus innate immune evasion enables infection of intestinal epithelial cells, escape from adaptive immunity, virus persistence, and shedding. PMID- 29024637 TI - Pla2g1b Places Worms in Peril. AB - The determinants of helminth resistance are not well understood. In this issue of Cell Host & Microbe, Entwistle et al. (2017) provide intriguing evidence that a phospholipase A2 (Pla2gb1) produced by epithelial cells can impair larval development in helminths, providing a novel mechanism contributing to intestinal nematode resistance. PMID- 29024634 TI - Space Invaders: Brain Tumor Exploitation of the Stem Cell Niche. AB - Increasing evidence indicates that the adult neurogenic niche of the ventricular subventricular zone (V-SVZ), beyond serving as a potential site of origin, affects the outcome of malignant brain cancers. Glioma contact with this niche predicts worse prognosis, suggesting a supportive role for the V-SVZ environment in tumor initiation or progression. In this review, we describe unique components of the V-SVZ that may permit or promote tumor growth within the region. Cell-cell interactions, soluble factors, and extracellular matrix composition are discussed, and the role of the niche in future therapies is explored. The purpose of this review is to highlight niche intrinsic factors that may promote or support malignant cell growth and maintenance, and point out how we might leverage these features to improve patient outcome. PMID- 29024638 TI - Shigella Stays on the Move. AB - Guanylate-binding proteins (GBPs) confer protection against intracellular pathogens. In this issue of Cell Host & Microbe, Wandel et al. (2017) report that cytosolic Shigella becomes trapped within a GBP coat that prevents bacterial cell to-cell spread. However, this defense mechanism is counteracted by the bacterial E3 ubiquitin ligase IpaH9.8. PMID- 29024639 TI - Helicobacter pylori Makes a Molecular Incision to Gain Epithelial Entry. AB - Helicobacter pylori type IV secretion system injects the oncoprotein CagA into epithelial cells to drive carcinogenesis. In this issue of Cell Host & Microbe, Tegtmeyer et al. (2017) show that a secreted bacterial protease disrupts apical junctional complexes, paving the way for H. pylori to access the basolateral compartment and trigger pathogenesis. PMID- 29024640 TI - Sociovirology: Conflict, Cooperation, and Communication among Viruses. AB - Viruses are involved in various interactions both within and between infected cells. Social evolution theory offers a conceptual framework for how virus-virus interactions, ranging from conflict to cooperation, have evolved. A critical examination of these interactions could expand our understanding of viruses and be exploited for epidemiological and medical interventions. PMID- 29024641 TI - Diverse Viruses Require the Calcium Transporter SPCA1 for Maturation and Spread. AB - Respiratory and arthropod-borne viral infections are a global threat due to the lack of effective antivirals and vaccines. A potential strategy is to target host proteins required for viruses but non-essential for the host. To identify such proteins, we performed a genome-wide knockout screen in human haploid cells and identified the calcium pump SPCA1. SPCA1 is required by viruses from the Paramyxoviridae, Flaviviridae, and Togaviridae families, including measles, dengue, West Nile, Zika, and chikungunya viruses. Calcium transport activity is required for SPCA1 to promote virus spread. SPCA1 regulates proteases within the trans-Golgi network that require calcium for their activity and are critical for virus glycoprotein maturation. Consistent with these findings, viral glycoproteins fail to mature in SPCA1-deficient cells preventing viral spread, which is evident even in cells with partial loss of SPCA1. Thus, SPCA1 is an attractive antiviral host target for a broad spectrum of established and emerging viral infections. PMID- 29024644 TI - M. tuberculosis-Induced Necrosis of Infected Neutrophils Promotes Bacterial Growth Following Phagocytosis by Macrophages. AB - Neutrophils represent the main infected cell population in the lungs of active tuberculosis patients. Efficient removal of infected and dying neutrophils is required to protect the surrounding tissue from bioactive neutrophil molecules and subsequent pathological sequelae. While the removal of apoptotic M. tuberculosis (Mtb)-infected cells, or efferocytosis, is considered beneficial for host defense, little is known about Mtb-infected necrotic neutrophils. We found that Mtb induces necrosis of human neutrophils in an ESX-1-dependent manner, and neutrophil-produced reactive oxygen species (ROS) drive this necrosis. Neutrophil necrosis was required for Mtb growth after uptake of infected neutrophils by human macrophages. Pharmacological inhibition of ROS production could prevent necrosis and restore the capability of macrophages to control Mtb growth, thereby identifying a potential host-directed therapy target. Taken together, necrosis represents the starting point for a vicious cycle including the uptake of infected necrotic cells by other phagocytes, Mtb growth therein, and sustained infection. PMID- 29024642 TI - Epithelial-Cell-Derived Phospholipase A2 Group 1B Is an Endogenous Anthelmintic. AB - Immunity to intestinal helminth infections has been well studied, but the mechanism of helminth killing prior to expulsion remains unclear. Here we identify epithelial-cell-derived phospholipase A2 group 1B (PLA2g1B) as a host derived endogenous anthelmintic. PLA2g1B is elevated in resistant mice and is responsible for killing tissue-embedded larvae. Despite comparable activities of other essential type-2-dependent immune mechanisms, Pla2g1b-/- mice failed to expel the intestinal helminths Heligmosomoides polygyrus or Nippostrongylus brasiliensis. Expression of Pla2g1b by epithelial cells was dependent upon intestinal microbiota, adaptive immunity, and common-gamma chain-dependent signaling. Notably, Pla2g1b was downregulated in susceptible mice and inhibited by IL-4R-signaling in vitro, uncoupling parasite killing from expulsion mechanisms. Resistance was restored in Pla2g1b-/- mice by treating infective H. polygyrus L3 larvae with PLA2g1B, which reduced larval phospholipid abundance. These findings uncover epithelial-cell-derived Pla2g1b as an essential mediator of helminth killing, highlighting a previously overlooked mechanism of anti helminth immunity. PMID- 29024645 TI - Helicobacter pylori Employs a Unique Basolateral Type IV Secretion Mechanism for CagA Delivery. AB - The Helicobacter pylori (Hp) type IV secretion system (T4SS) forms needle-like pili, whose binding to the integrin-beta1 receptor results in injection of the CagA oncoprotein. However, the apical surface of epithelial cells is exposed to Hp, whereas integrins are basolateral receptors. Hence, the mechanism of CagA delivery into polarized gastric epithelial cells remains enigmatic. Here, we demonstrate that T4SS pilus formation during infection of polarized cells occurs predominantly at basolateral membranes, and not at apical sites. Hp accomplishes this by secreting another bacterial protein, the serine protease HtrA, which opens cell-to-cell junctions through cleaving epithelial junctional proteins including occludin, claudin-8, and E-cadherin. Using a genetic system expressing a peptide inhibitor, we demonstrate that HtrA activity is necessary for paracellular transmigration of Hp across polarized cell monolayers to reach basolateral membranes and inject CagA. The contribution of this unique signaling cascade to Hp pathogenesis is discussed. PMID- 29024643 TI - GBPs Inhibit Motility of Shigella flexneri but Are Targeted for Degradation by the Bacterial Ubiquitin Ligase IpaH9.8. AB - Interferon exposure boosts cell-autonomous immunity for more efficient pathogen control. But how interferon-enhanced immunity protects the cytosol against bacteria and how professionally cytosol-dwelling bacteria avoid clearance are insufficiently understood. Here we demonstrate that the interferon-induced GTPase family of guanylate-binding proteins (GBPs) coats Shigella flexneri in a hierarchical manner reliant on GBP1. GBPs inhibit actin-dependent motility and cell-to-cell spread of bacteria but are antagonized by IpaH9.8, a bacterial ubiquitin ligase secreted into the host cytosol. IpaH9.8 ubiquitylates GBP1, GBP2, and GBP4 to cause the proteasome-dependent destruction of existing GBP coats. This ubiquitin coating of Shigella favors the pathogen as it liberates bacteria from GBP encapsulation to resume actin-mediated motility and cell-to cell spread. We conclude that an important function of GBP recruitment to S. flexneri is to prevent the spread of infection to neighboring cells while IpaH9.8 helps bacterial propagation by counteracting GBP-dependent cell-autonomous immunity. PMID- 29024647 TI - Exciting Times Ahead. PMID- 29024648 TI - Mapping Brain Activity onto Molecularly Defined Cells. AB - The brain processes information and generates behavior by employing a wide array of different cell types. In this issue of Neuron, Wu et al. (2017) report a novel method that enables the efficient identification of molecularly defined cells that participate in a specific brain function. PMID- 29024649 TI - Obsessing about Uncertainty? AB - A striking observation in obsessive-compulsive disorder is that patients know that their obsessions and compulsions are excessive, but their symptoms nevertheless persist. Drawing on computational models from basic neuroscience, Vaghi and colleagues (2017) suggest a quantitative account of this clinical finding. PMID- 29024650 TI - A Corticostriatal Balancing Act Supports Skill Learning. AB - In this issue of Neuron, Kupferschmidt et al. (2017) reveal the shifting dynamics of functionally defined corticostriatal pathways during skill learning in mice using fiber photometry. They show different time courses in plasticity of associative and sensorimotor circuits across learning that involve changes at both the synaptic and cortical level. PMID- 29024651 TI - Implicit and Explicit Learning Mechanisms Meet in Monkey Prefrontal Cortex. AB - In this issue, Loonis et al. (2017) provide the first description of unique synchrony patterns differentiating implicit and explicit forms of learning in monkey prefrontal networks. Their results have broad implications for how prefrontal networks integrate the two learning mechanisms to control behavior. PMID- 29024646 TI - The Epstein-Barr Virus Regulome in Lymphoblastoid Cells. AB - Epstein-Barr virus (EBV) transforms B cells to continuously proliferating lymphoblastoid cell lines (LCLs), which represent an experimental model for EBV associated cancers. EBV nuclear antigens (EBNAs) and LMP1 are EBV transcriptional regulators that are essential for LCL establishment, proliferation, and survival. Starting with the 3D genome organization map of LCL, we constructed a comprehensive EBV regulome encompassing 1,992 viral/cellular genes and enhancers. Approximately 30% of genes essential for LCL growth were linked to EBV enhancers. Deleting EBNA2 sites significantly reduced their target gene expression. Additional EBV super-enhancer (ESE) targets included MCL1, IRF4, and EBF. MYC ESE looping to the transcriptional stat site of MYC was dependent on EBNAs. Deleting MYC ESEs greatly reduced MYC expression and LCL growth. EBNA3A/3C altered CDKN2A/B spatial organization to suppress senescence. EZH2 inhibition decreased the looping at the CDKN2A/B loci and reduced LCL growth. This study provides a comprehensive view of the spatial organization of chromatin during EBV-driven cellular transformation. PMID- 29024652 TI - Nuclear Pore Protein Meets Transcription Factor in Neural Fate. AB - How nuclear architecture contributes to transcriptional regulation in neural progenitor cells (NeuPCs) is poorly understood. A study by Toda et al. (2017) now shows that the nuclear pore protein Nup153 associates with the Sox2 transcription factor in the regulation of NeuPC maintenance and neural fate. PMID- 29024653 TI - Hazards to Early Development: The Biological Embedding of Early Life Adversity. AB - The number of children under 18 years of age has increased worldwide over the past decade. This growth spurt is due, in part, to remarkable progress in child survival. Alas, surviving early hazards, like prematurity or infectious disease, does not guarantee that children's development will not be compromised by other hazards as they grow older. Throughout the world, children continue to be confronted with a large number of biological and psychosocial challenges that greatly limit their developmental potential. The focus of this article is how such adverse experiences impact the developing brain. PMID- 29024656 TI - Diagnosing the Neural Circuitry of Reading. AB - We summarize the current state of knowledge of the brain's reading circuits, and then we describe opportunities to use quantitative and reproducible methods for diagnosing these circuits. Neural circuit diagnostics-by which we mean identifying the locations and responses in an individual that differ significantly from measurements in good readers-can help parents and educators select the best remediation strategy. A sustained effort to develop and share diagnostic methods can support the societal goal of improving literacy. PMID- 29024657 TI - Detecting Activated Cell Populations Using Single-Cell RNA-Seq. AB - Single-cell RNA sequencing offers a promising opportunity for probing cell types mediating specific behavioral functions and the underlying molecular programs. However, this has been hampered by a long-standing issue in transcriptional profiling of dissociated cells, specifically the transcriptional perturbations that are artificially induced during conventional whole-cell dissociation procedures. Here, we develop Act-seq, which minimizes artificially induced transcriptional perturbations and allows for faithful detection of both baseline transcriptional profiles and acute transcriptional changes elicited by behavior/experience-driven activity. Using Act-seq, we provide the first detailed molecular taxonomy of distinct cell types in the amygdala. We further show that Act-seq robustly detects seizure-induced acute gene expression changes in multiple cell types, revealing cell-type-specific activation profiles. Furthermore, we find that acute stress preferentially activates neuronal subpopulations that express the neuropeptide gene Cck. Act-seq opens the way for linking physiological stimuli with acute transcriptional dynamics in specific cell types in diverse complex tissues. PMID- 29024655 TI - Lost in Transportation: Nucleocytoplasmic Transport Defects in ALS and Other Neurodegenerative Diseases. AB - Amyotrophic lateral sclerosis (ALS) is a progressive, fatal neurodegenerative disease characterized by degeneration of upper and lower motor neurons in the brain and spinal cord. The hallmark pathological feature in most cases of ALS is nuclear depletion and cytoplasmic accumulation of the protein TDP-43 in degenerating neurons. Consistent with this pattern of intracellular protein redistribution, impaired nucleocytoplasmic trafficking has emerged as a mechanism contributing to ALS pathology. Dysfunction in nucleocytoplasmic transport is also an emerging theme in physiological aging and other related neurodegenerative diseases, such as Huntington's and Alzheimer's diseases. Here we review transport through the nuclear pore complex, pointing out vulnerabilities that may underlie ALS and potentially contribute to this and other age-related neurodegenerative diseases. PMID- 29024654 TI - Striatal Local Circuitry: A New Framework for Lateral Inhibition. AB - This Perspective will examine the organization of intrastriatal circuitry, review recent findings in this area, and discuss how the pattern of connectivity between striatal neurons might give rise to the behaviorally observed synergism between the direct/indirect pathway neurons. The emphasis of this Perspective is on the underappreciated role of lateral inhibition between striatal projection cells in controlling neuronal firing and shaping the output of this circuit. We review some classic studies in combination with more recent anatomical and functional findings to lay out a framework for an updated model of the intrastriatal lateral inhibition, where we explore its contribution to the formation of functional units of processing and the integration and filtering of inputs to generate motor patterns and learned behaviors. PMID- 29024658 TI - Functional Convergence at the Retinogeniculate Synapse. AB - Precise connectivity between retinal ganglion cells (RGCs) and thalamocortical (TC) relay neurons is thought to be essential for the transmission of visual information. Consistent with this view, electrophysiological measurements have previously estimated that 1-3 RGCs converge onto a mouse geniculate TC neuron. Recent advances in connectomics and rabies tracing have yielded much higher estimates of retinogeniculate convergence, although not all identified contacts may be functional. Here we use optogenetics and a computational simulation to determine the number of functionally relevant retinogeniculate inputs onto TC neurons in mice. We find an average of ten RGCs converging onto a mature TC neuron, in contrast to >30 inputs before developmental refinement. However, only 30% of retinogeniculate inputs exceed the threshold for dominating postsynaptic activity. These results signify a greater role for the thalamus in visual processing and provide a functional perspective of anatomical connectivity data. PMID- 29024659 TI - Posterior Cingulate Neurons Dynamically Signal Decisions to Disengage during Foraging. AB - Foraging for resources is a fundamental behavior balancing systematic search and strategic disengagement. The foraging behavior of primates is especially complex and requires long-term memory, value comparison, strategic planning, and decision making. Here we provide evidence from two different foraging tasks that neurons in primate posterior cingulate cortex (PCC) signal decision salience during foraging to motivate disengagement from the current strategy. In our foraging tasks, salience refers to the difference between decision thresholds and the net harvested reward. Salience signals were stronger in poor foraging contexts than rich ones, suggesting low harvest rates recruit mechanisms in PCC that regulate strategic disengagement and exploration during foraging. PMID- 29024660 TI - Amyloid Beta Peptides Block New Synapse Assembly by Nogo Receptor-Mediated Inhibition of T-Type Calcium Channels. AB - Compelling evidence links amyloid beta (Abeta) peptide accumulation in the brains of Alzheimer's disease (AD) patients with the emergence of learning and memory deficits, yet a clear understanding of the events that drive this synaptic pathology are lacking. We present evidence that neurons exposed to Abeta are unable to form new synapses, resulting in learning deficits in vivo. We demonstrate the Nogo receptor family (NgR1-3) acts as Abeta receptors mediating an inhibition of synapse assembly, plasticity, and learning. Live imaging studies reveal Abeta activates NgRs on the dendritic shaft of neurons, triggering an inhibition of calcium signaling. We define T-type calcium channels as a target of Abeta-NgR signaling, mediating Abeta's inhibitory effects on calcium, synapse assembly, plasticity, and learning. These studies highlight deficits in new synapse assembly as a potential initiator of cognitive pathology in AD, and pinpoint calcium dysregulation mediated by NgRs and T-type channels as key components. VIDEO ABSTRACT. PMID- 29024661 TI - Paclitaxel Reduces Axonal Bclw to Initiate IP3R1-Dependent Axon Degeneration. AB - Chemotherapy-induced peripheral neuropathy (CIPN) is a debilitating side effect of many cancer treatments. The hallmark of CIPN is degeneration of long axons required for transmission of sensory information; axonal degeneration causes impaired tactile sensation and persistent pain. Currently the molecular mechanisms of CIPN are not understood, and there are no available treatments. Here we show that the chemotherapeutic agent paclitaxel triggers CIPN by altering IP3 receptor phosphorylation and intracellular calcium flux, and activating calcium-dependent calpain proteases. Concomitantly paclitaxel impairs axonal trafficking of RNA-granules and reduces synthesis of Bclw (bcl2l2), a Bcl2 family member that binds IP3R1 and restrains axon degeneration. Surprisingly, Bclw or a stapled peptide corresponding to the Bclw BH4 domain interact with axonal IP3R1 and prevent paclitaxel-induced degeneration, while Bcl2 and BclxL cannot do so. Together these data identify a Bclw-IP3R1-dependent cascade that causes axon degeneration and suggest that Bclw-mimetics could provide effective therapy to prevent CIPN. PMID- 29024663 TI - Role of the Astroglial Glutamate Exchanger xCT in Ventral Hippocampus in Resilience to Stress. AB - We demonstrate that stress differentially regulates glutamate homeostasis in the dorsal and ventral hippocampus and identify a role for the astroglial xCT in ventral dentate gyrus (vDG) in stress and antidepressant responses. We provide an RNA-seq roadmap for the stress-sensitive vDG. The transcription factor REST binds to xCT promoter in co-occupancy with the epigenetic marker H3K27ac to regulate expression of xCT, which is also reduced in a genetic mouse model of inherent susceptibility to depressive-like behavior. Pharmacologically, modulating histone acetylation with acetyl-L-carnitine (LAC) or acetyl-N-cysteine (NAC) rapidly increases xCT and activates a network with mGlu2 receptors to prime an enhanced glutamate homeostasis that promotes both pro-resilient and antidepressant-like responses. Pharmacological xCT blockage counteracts NAC prophylactic effects. GFAP+-Cre-dependent overexpression of xCT in vDG mimics pharmacological actions in promoting resilience. This work establishes a mechanism by which vDG protection leads to stress resilience and antidepressant responses via epigenetic programming of an xCT-mGlu2 network. PMID- 29024662 TI - Loss of CLOCK Results in Dysfunction of Brain Circuits Underlying Focal Epilepsy. AB - Because molecular mechanisms underlying refractory focal epilepsy are poorly defined, we performed transcriptome analysis on human epileptogenic tissue. Compared with controls, expression of Circadian Locomotor Output Cycles Kaput (CLOCK) is decreased in epileptogenic tissue. To define the function of CLOCK, we generated and tested the Emx-Cre; Clockflox/flox and PV-Cre; Clockflox/flox mouse lines with targeted deletions of the Clock gene in excitatory and parvalbumin (PV)-expressing inhibitory neurons, respectively. The Emx-Cre; Clockflox/flox mouse line alone has decreased seizure thresholds, but no laminar or dendritic defects in the cortex. However, excitatory neurons from the Emx-Cre; Clockflox/flox mouse have spontaneous epileptiform discharges. Both neurons from Emx-Cre; Clockflox/flox mouse and human epileptogenic tissue exhibit decreased spontaneous inhibitory postsynaptic currents. Finally, video-EEG of Emx-Cre; Clockflox/flox mice reveals epileptiform discharges during sleep and also seizures arising from sleep. Altogether, these data show that disruption of CLOCK alters cortical circuits and may lead to generation of focal epilepsy. PMID- 29024664 TI - The Anterior Insular Cortex->Central Amygdala Glutamatergic Pathway Is Critical to Relapse after Contingency Management. AB - Despite decades of research on neurobiological mechanisms of psychostimulant addiction, the only effective treatment for many addicts is contingency management, a behavioral treatment that uses alternative non-drug reward to maintain abstinence. However, when contingency management is discontinued, most addicts relapse to drug use. The brain mechanisms underlying relapse after cessation of contingency management are largely unknown, and, until recently, an animal model of this human condition did not exist. Here we used a novel rat model, in which the availability of a mutually exclusive palatable food maintains prolonged voluntary abstinence from intravenous methamphetamine self administration, to demonstrate that the activation of monosynaptic glutamatergic projections from anterior insular cortex to central amygdala is critical to relapse after the cessation of contingency management. We identified the anterior insular cortex-to-central amygdala projection as a new addiction- and motivation related projection and a potential target for relapse prevention. PMID- 29024665 TI - Astrocyte-Secreted Glypican 4 Regulates Release of Neuronal Pentraxin 1 from Axons to Induce Functional Synapse Formation. AB - The generation of precise synaptic connections between developing neurons is critical to the formation of functional neural circuits. Astrocyte-secreted glypican 4 induces formation of active excitatory synapses by recruiting AMPA glutamate receptors to the postsynaptic cell surface. We now identify the molecular mechanism of how glypican 4 exerts its effect. Glypican 4 induces release of the AMPA receptor clustering factor neuronal pentraxin 1 from presynaptic terminals by signaling through presynaptic protein tyrosine phosphatase receptor delta. Pentraxin then accumulates AMPA receptors on the postsynaptic terminal forming functional synapses. Our findings reveal a signaling pathway that regulates synaptic activity during central nervous system development and demonstrates a role for astrocytes as organizers of active synaptic connections by coordinating both pre and post synaptic neurons. As mutations in glypicans are associated with neurological disorders, such as autism and schizophrenia, this signaling cascade offers new avenues to modulate synaptic function in disease. PMID- 29024666 TI - Dynamics of Gut-Brain Communication Underlying Hunger. AB - Communication between the gut and brain is critical for homeostasis, but how this communication is represented in the dynamics of feeding circuits is unknown. Here we describe nutritional regulation of key neurons that control hunger in vivo. We show that intragastric nutrient infusion rapidly and durably inhibits hunger promoting AgRP neurons in awake, behaving mice. This inhibition is proportional to the number of calories infused but surprisingly independent of macronutrient identity or nutritional state. We show that three gastrointestinal signals serotonin, CCK, and PYY-are necessary or sufficient for these effects. In contrast, the hormone leptin has no acute effect on dynamics of these circuits or their sensory regulation but instead induces a slow modulation that develops over hours and is required for inhibition of feeding. These findings reveal how layers of visceral signals operating on distinct timescales converge on hypothalamic feeding circuits to generate a central representation of energy balance. PMID- 29024667 TI - Parallel, but Dissociable, Processing in Discrete Corticostriatal Inputs Encodes Skill Learning. AB - Changes in cortical and striatal function underlie the transition from novel actions to refined motor skills. How discrete, anatomically defined corticostriatal projections function in vivo to encode skill learning remains unclear. Using novel fiber photometry approaches to assess real-time activity of associative inputs from medial prefrontal cortex to dorsomedial striatum and sensorimotor inputs from motor cortex to dorsolateral striatum, we show that associative and sensorimotor inputs co-engage early in action learning and disengage in a dissociable manner as actions are refined. Disengagement of associative, but not sensorimotor, inputs predicts individual differences in subsequent skill learning. Divergent somatic and presynaptic engagement in both projections during early action learning suggests potential learning-related in vivo modulation of presynaptic corticostriatal function. These findings reveal parallel processing within associative and sensorimotor circuits that challenges and refines existing views of corticostriatal function and expose neuronal projection- and compartment-specific activity dynamics that encode and predict action learning. PMID- 29024668 TI - Increased Prevalence of Calcium Transients across the Dendritic Arbor during Place Field Formation. AB - Hippocampal place cell ensembles form a cognitive map of space during exposure to novel environments. However, surprisingly little evidence exists to support the idea that synaptic plasticity in place cells is involved in forming new place fields. Here we used high-resolution functional imaging to determine the signaling patterns in CA1 soma, dendrites, and axons associated with place field formation when mice are exposed to novel virtual environments. We found that putative local dendritic spikes often occur prior to somatic place field firing. Subsequently, the first occurrence of somatic place field firing was associated with widespread regenerative dendritic events, which decreased in prevalence with increased novel environment experience. This transient increase in regenerative events was likely facilitated by a reduction in dendritic inhibition. Since regenerative dendritic events can provide the depolarization necessary for Hebbian potentiation, these results suggest that activity-dependent synaptic plasticity underlies the formation of many CA1 place fields. PMID- 29024671 TI - Baeyer-Villiger reaction of steroid sapogenins by CF3COOH-H2O2. A short cut to pregnan-3beta,16beta,20-triol 3-monoacetates. AB - Treatment of steroid sapogenins with H2O2 in CF3COOH for 15min followed by reflux in CH3OH/H2O afforded good yields of pregnan-3beta,16beta,20-triol 3 monoacetates. When the hydrolysis step was carried out with KOH in refluxing methanol excellent yields pregnantriols were obtained. The resulting compounds were characterized by their melting points and NMR spectral data. An X-ray diffraction analysis of compound 3a confirmed the proposed structure and provided detailed information about the bond lengths, bond angles and conformation. PMID- 29024669 TI - Pyramidal Cell-Interneuron Circuit Architecture and Dynamics in Hippocampal Networks. AB - Excitatory control of inhibitory neurons is poorly understood due to the difficulty of studying synaptic connectivity in vivo. We inferred such connectivity through analysis of spike timing and validated this inference using juxtacellular and optogenetic control of presynaptic spikes in behaving mice. We observed that neighboring CA1 neurons had stronger connections and that superficial pyramidal cells projected more to deep interneurons. Connection probability and strength were skewed, with a minority of highly connected hubs. Divergent presynaptic connections led to synchrony between interneurons. Synchrony of convergent presynaptic inputs boosted postsynaptic drive. Presynaptic firing frequency was read out by postsynaptic neurons through short term depression and facilitation, with individual pyramidal cells and interneurons displaying a diversity of spike transmission filters. Additionally, spike transmission was strongly modulated by prior spike timing of the postsynaptic cell. These results bridge anatomical structure with physiological function. PMID- 29024673 TI - Not the usual suspect. AB - An 82-year-old woman presented with right-sided proptosis, chemosis, and a supraorbital bruit. A dural carotid-cavernous fistula was suspected, but catheter angiography revealed an intraorbital inferior ophthalmic vein arteriovenous fistula supplied by the right ophthalmic artery and infraorbital branch of the internal maxillary artery. A primary orbital arteriovenous fistula can mimic the clinical and radiographic features of the more common carotid-cavernous fistula. PMID- 29024674 TI - Optic nerve head problem. AB - A 68-year-old woman with a recent history of blurring in the left eye had undergone mastectomy for breast cancer 20 years ago. A series of bone metastases started 5 years after her diagnosis. Examination of the optic nerve head of the left eye revealed an isolated peripapillary mass. Indocyanine green angiography displayed vessels within the mass, and fluorescein angiography demonstrated hyperfluorescence of the mass from vascular leakage plus lobular spots of blocked fluorescence. B-scan ultrasound revealed a hyperechoic-elevated nodular mass on the optic disc. Spectral-domain optical coherence tomography displayed a mass of spherules. Magnetic resonance imaging of the brain demonstrated metastatic tumors. She was diagnosed with an optic disk metastasis from her breast carcinoma. PMID- 29024670 TI - A Meta-Analysis Suggests Different Neural Correlates for Implicit and Explicit Learning. AB - A meta-analysis of non-human primates performing three different tasks (Object Match, Category-Match, and Category-Saccade associations) revealed signatures of explicit and implicit learning. Performance improved equally following correct and error trials in the Match (explicit) tasks, but it improved more after correct trials in the Saccade (implicit) task, a signature of explicit versus implicit learning. Likewise, error-related negativity, a marker for error processing, was greater in the Match (explicit) tasks. All tasks showed an increase in alpha/beta (10-30 Hz) synchrony after correct choices. However, only the implicit task showed an increase in theta (3-7 Hz) synchrony after correct choices that decreased with learning. In contrast, in the explicit tasks, alpha/beta synchrony increased with learning and decreased thereafter. Our results suggest that explicit versus implicit learning engages different neural mechanisms that rely on different patterns of oscillatory synchrony. PMID- 29024672 TI - Conventional and real time RT-PCR assays for the detection and differentiation of variant rabbit hemorrhagic disease virus (RHDVb) and its recombinants. AB - Since its emergence, variant RHDV (RHDVb/RHDV2) has spread throughout the Iberian Peninsula aided by the apparent lack of cross protection provided by classic (genogroup 1; G1) strain derived vaccines. In addition to RHDVb, full-length genome sequencing of RHDV strains has recently revealed the circulation of recombinant viruses on the Iberian Peninsula. These recombinant viruses contain the RHDVb structural protein encoding sequences and the non-structural coding regions of either pathogenic RHDV-G1 strains or non-pathogenic (np) rabbit caliciviruses. The aim of the work was twofold: firstly to validate a diagnostic real time RT-PCR developed in 2012 for the detection of RHDVb strains and secondly, to design a conventional RT-PCR for the differentiation of RHDVb strains from RHDVb recombinants by subsequent sequencing of the amplicon. PMID- 29024675 TI - Tempo(ral) was the heart of the matter. AB - A 71-year-old woman was admitted with fever, headache, and weight loss associated with elevated inflammatory markers. She developed acute bilateral ophthalmoplegia and asymmetrical ptosis, rapidly followed by anterior ischemic optic neuropathy. Although the first temporal artery biopsy was negative, contralateral temporal artery biopsy revealed features consistent with giant cell arteritis. Even while under steroid therapy, she died a few days later from myocardial infarction. Acute bilateral complete ophthalmoplegia is a rare presentation of a limited number of possible diseases. Among these, giant cell arteritis should be suspected in the appropriate clinical scenario. PMID- 29024676 TI - Perinatal fluoxetine prevents the effect of pre-gestational maternal stress on 5 HT in the PFC, but maternal stress has enduring effects on mPFC synaptic structure in offspring. AB - Maternal affective disorders are frequently treated with selective serotonin reuptake inhibitor medications (SSRIs); with up to 10% of women being prescribed these medications during pregnancy. Infant development depends on the early serotonergic environment, which is altered by perinatal SSRIs, raising concern about how these medications affect neural outcomes. While clinical and preclinical research suggests an impact of SSRIs on the developing brain, more research is needed to determine the effects on neuroplasticity, the serotonergic system, and the hypothalamic-pituitary-adrenal axis in neural regions mediating behavior. The current work investigated the effects of the SSRI, fluoxetine, on the serotonergic system in the prefrontal cortex (PFC) during pre-adolescence, and changes to synaptic markers and glucocorticoid receptor density in the cingulate cortex (medial PFC) of pre-adolescent and adult Sprague-Dawley male and female rats. To model aspects of Perinatal Depression and maternal anxiety, pre gestational maternal stress was used resulting in male and female offspring from 4 groups: 1) control, 2) perinatal fluoxetine exposed, 3) pre-gestational maternal stress exposed, and 4) pre-gestational maternal stress + fluoxetine. Perinatal fluoxetine prevented the effects of maternal stress on 5-HT levels and 5-HT turnover ratio in the PFC of pre-adolescent offspring, particularly in females. However, pre-gestational stress reduced synaptophysin and PSD-95 densities in the cingulate cortex, effects that were more pronounced in males. Interestingly, perinatal fluoxetine exposure reduced GR density in adult males in this same brain area. Together, results show differential effects of perinatal SSRIs and pre-gestational maternal stress on neurodevelopment in the PFC of males and females. PMID- 29024677 TI - Eating behavior traits associated with demographic variables and implications for obesity outcomes in early childhood. AB - Despite ongoing investigation of children's eating behaviors to better understand the etiology of childhood obesity, few studies have aimed to determine differences in eating behavior based on psycho-social variables reflective of 'stressful' life circumstance. Cross-sectional data collected from parents of 977 Australian children (2.0-5.0 years) in an online survey was used to determine associations between parent-reported Children's Eating Behavior Questionnaire [CEBQ] sub-scales, child BMI z-scores and psycho-social variables. When examined individually, all CEBQ sub-scales, except Slowness in Eating, were associated with BMI z-score (Food Responsiveness B = 0.226, p = 0.003, Enjoyment of Food B = 0.169, p = 0.035, Food Fussiness B = -0.139, p = 0.024, Satiety Responsiveness B = -0.318, p = 0.001). On examining CEBQ sub-scales along with psycho-social demographic variables, only Food Responsiveness and Satiety Responsiveness were retained, along with being a boy, child age, and parent BMI. Food Responsiveness was positively associated with parental stress and child age and negatively with parent BMI, while Enjoyment of Food was positively associated with child sleep duration, single parent status, and negatively with breastfeeding less than 6 months and parental depression. Satiety Responsiveness was positively associated with parent BMI and child age, and negatively with child sleep duration, while Food Fussiness was positively associated with child age and breastfeeding less than 6 months, and negatively with sleep duration, parental depression and single parent status. Attention to eating behaviors and associated psycho-social variables may provide opportunity for targeted obesity prevention initiatives. PMID- 29024678 TI - Suppression of nucleocytoplasmic p27Kip1 export attenuates CDK4-mediated neuronal death induced by status epilepticus. AB - Aberrant cell cycle re-entry promotes neuronal death in various neurological diseases. Thus, cyclin-dependent kinases (CDKs) seem to be one of potential therapeutic targets to prevent neuronal loss. In the present study, we investigated the involvements of CDK4, CDK5 and p27Kip1 (an endogenous CDK inhibitor) in status epilepticus (SE)-induced neuronal death. Following SE, CDK4 expression was increased in CA1 neurons, while CDK5 was decreased. Most of TUNEL positive neurons showed CDK4 expression, but less CDK5 expression. Flavopiridol (a CDK4 inhibitor) attenuated TUNEL signal and CDK4 expression in CA1 neurons following SE. CDK5 inhibitors did not affect these phenomena. Both flavopiridol and leptomycin B (an inhibitor of chromosome region maintenance 1) mitigated SE induced neuronal death by inhibiting nucleocytoplasmic p27Kip1 translocation. These findings suggest that SE may lead to nucleocytoplasmic p27Kip1 export that initiates CDK4, not CDK5, induction, which an abortive and fatal cell cycle re entry progress in CA1 neurons. PMID- 29024680 TI - Uridine attenuates morphine-induced conditioned place preference and regulates glutamate/GABA levels in mPFC of mice. AB - Several lines of evidence suggest that uridine, as a neuromodulator, plays an important role in drug addiction. We previously found that uridine circumvents morphine-induced behavioral sensitization by decreasing the extracellular dopamine levels in the dorsal striatum. In the present study, the effects of uridine on morphine-induced conditioned place preference (CPP) and the possible roles of glutamate and GABA in the stress-induced reinstatement of CPP were investigated. First, the effects of uridine (1, 10 and 100mg/kg, i.p.) on the four defined phases - acquisition, expression, extinction and reinstatement (drug priming and restraint stress) - of morphine-induced CPP were studied. The results showed that pretreatment with uridine significantly blocked the acquisition and expression phases of CPP. Additionally, uridine also facilitated CPP extinction and inhibited stress-induced CPP reinstatement, although it failed to affect drug induced CPP reinstatement. Since glutamatergic and GABAergic systems are both involved in CPP reinstatement, the extracellular levels of glutamate and GABA in the mPFC during the stress-induced CPP reinstatement were determined using in vivo microdialysis. The results showed that uridine attenuated the stress-induced glutamate increase in the mPFC without influencing the basal glutamate levels, and increased the levels of extracellular GABA in the mPFC both under normal physiological conditions and after the stress stimulus. Thus, our results indicate that uridine depresses the stress-induced reinstatement of CPP, simultaneously regulating glutamatergic and GABAergic neurotransmission in the mPFC. The present work provides further understanding of the role of uridine in morphine-induced neurobehavioral changes. PMID- 29024681 TI - Potentiation of morphine-induced antinociception and locomotion by citalopram is accompanied by anxiolytic-like effects. AB - Morphine and related opioids are the mainstay of analgesic treatment, especially in patients suffering chronic pain. Besides their antinociceptive effects they may also exhibit anxiolytic-like properties that could contribute to pain relief. The pharmacological manipulation of the serotonergic system may not only modulate pain transmission and processing but also other behavioral effects of opioids. The present study aimed to analyze the effect of the concurrent treatment with citalopram, a selective serotonin reuptake inhibitor, on the antinociceptive, locomotor and anxiety-related effects induced by acute and subchronic administration of morphine in mice. Citalopram (15mg/kg) enhanced the acute antinociceptive effects of morphine when concurrently administered as evidenced by a two-fold increase in the ED50 for the antinociceptive effect of morphine in the hot-plate test. Chronic studies also revealed that concurrent citalopram treatment (15mg/kg) delayed the development of tolerance to the thermal antinociceptive effects of morphine. Additionally, morphine-induced hyperlocomotion was potentiated by citalopram as assessed in the open-field test and in the spontaneous activity recording in the home cage, a behavioral outcome to which tolerance or desensitization was not developed. Interestingly, chronic administration of both drugs promoted an anxiolytic effect as evidenced by the increased central activity in the open field test. Future investigations on this pharmacological interaction, such as the possible translational research in clinics, might have consequences in future strategies for the therapeutic management of pain. PMID- 29024679 TI - Short-range connections in the developmental connectome during typical and atypical brain maturation. AB - The human brain is remarkably complex with connectivity constituting its basic organizing principle. Although long-range connectivity has been focused on in most research, short-range connectivity is characterized by unique and spatiotemporally heterogeneous dynamics from infancy to adulthood. Alterations in the maturational dynamics of short-range connectivity has been associated with neuropsychiatric disorders, such as autism and schizophrenia. Recent advances in neuroimaging techniques, especially diffusion magnetic resonance imaging (dMRI), resting-state functional MRI (rs-fMRI), electroencephalography (EEG) and magnetoencephalography (MEG), have made quantification of short-range connectivity possible in pediatric populations. This review summarizes findings on the development of short-range functional and structural connections at the macroscale. These findings suggest an inverted U-shaped pattern of maturation from primary to higher-order brain regions, and possible "hyper-" and "hypo-" short-range connections in autism and schizophrenia, respectively. The precisely balanced short- and long-range connections contribute to the integration and segregation of the connectome during development. The mechanistic relationship among short-range connectivity maturation, the developmental connectome and emerging brain functions needs further investigation, including the refinement of methodological approaches. PMID- 29024683 TI - The thermoduric effects of site-directed mutagenesis of proline and lysine on dextransucrase from Leuconostoc mesenteroides 0326. AB - Dextransucrase (DSR, EC2.4.5.1) from Leuconostoc mesenteroides 0326 which catalyzes sucrose to produce dextran, are popularly used in food and medicine industries. However, its poor kinetic stability especially at higher temperatures is a limiting factor for developing industrial applications. The aim of this study is to improve the enzyme activity and thermal stability of dextransucrase by single, double and triple mutations of proline and lysine. In this work, Pro 473, Pro-678, and Pro-856 were selected as engineering targets and individually replaced with serine. Lys-378, Lys-725, and Lys-955 were replaced with threonine, respectively. Mutant P473S/P856S (MW: 170kDa) was selected as the highest enzymatic activity mutant from fourteen mutants. Specifically, the mutant P473S/P856S showed a significant increase in thermal inactivation with a 7.4-fold increase in half-life at 35 degrees C and a 2-fold increase in catalytic efficiency compared with the wild-type. The results of structural simulation are demonstrated that the new intramolecular hydrogen bonds in mutated enzymes increased structural stability, thereby increasing the thermal stability. The thermal stable mutants have an enormous application potential in food and pharmaceutical industry. PMID- 29024682 TI - History of concussion impacts electrophysiological correlates of working memory. AB - Sports-related concussions occur in approximately 21% of college athletes with implications for long-term cognitive impairments in working memory. Working memory involves the capacity to maintain short-term information and integrate with higher-order cognitive processing for planning and behavior execution, critical skills for optimal cognitive and athletic performance. This study quantified working memory impairments in 36 American football college athletes (18-23years old) using event-related potentials (ERPs). Despite performing similarly in a standard 2-back working memory task, athletes with history of concussion exhibited larger P1 and P3 amplitudes compared to Controls. Concussion History group latencies were slower for the P1 and faster for the N2. Source estimation analyses indicated that previously concussed athletes engaged different brain regions compared to athletes with no concussion history. These findings suggest that ERPs may be a sensitive and objective measure to detect long-term cognitive consequences of concussion. PMID- 29024684 TI - Duplex/quadruplex oligonucleotides: Role of the duplex domain in the stabilization of a new generation of highly effective anti-thrombin aptamers. AB - Recently, mixed duplex/quadruplex oligonucleotides have attracted great interest for use as biomedical aptamers. In the case of anti-thrombin aptamers, the addition of duplex-forming sequences to a G-quadruplex module identical or very similar to the best-known G-quadruplex of the Thrombin Binding Aptamer (HD1) results in new or improved biological properties, such as higher activity or different recognition properties with respect to HD1. Remarkably, this bimodular fold was hypothesized, based on its sequence, for the only anti-thrombin aptamer in advanced clinical trial, NU172. Whereas cation modulation of G-quadruplex conformation and stability is well characterized, only few data from similar analysis on duplex/quadruplex oligonucleotides exist. Here we have performed a characterization of structure and stability of four different duplex/quadruplex anti-thrombin aptamers, including NU172, in the presence of different cations and in physiological-mimicking conditions in comparison to HD1, by means of spectroscopic techniques (UV and circular dichroism) and differential scanning calorimetry. Our data show a strong reciprocal influence of each domain on the stability of the other and in particular suggest a stabilizing effect of the duplex region in the presence of solutions mimicking the physiological conditions, strengthening the idea that bimodular aptamers present better therapeutic potentialities than those containing a single G-quadruplex domain. PMID- 29024685 TI - Cardiac pathologic findings in 3 unusual cases of sudden cardiac death related to anorexiant drugs. AB - Amphetamine congeners can be prescribed as anorexiant drugs despite their potential adverse effects, including cardiac toxicity. However, the morphologic features of cardiac damage related to protracted use of these compounds are unknown. We provide a detailed description of cardiac autopsy findings in 3 cases of sudden death associated with protracted use of high doses of phendimetrazine and/or phenylpropanolamine or bupropion prescribed as anorexiants, in association with other compounds. The main cardiac findings were similar in all 3 cases: (1) mild-moderate hypertrophy of the left ventricle and/or the septum; (2) myocardial nonischemic scarring (midmural and/or subepicardial) appearing as discrete foci or with a bandlike morphology; (3) mild-moderate intramural small vessel disease in the absence of significant epicardial coronary artery stenosis; and (4) acute/recent inflammatory lesions consistent with toxic myocarditis. In summary, the detailed pathology examination of the heart in these 3 cases revealed myocardial lesions identical to those reported in catecholamine myocardial damage in all their various stages of evolution. In the presence of a clinical history of long-term intake of anorexiants of this category, it is most important at autopsy to recognize and correctly interpret the acute and chronic myocardial lesions of the type herein described because they represent an anatomical substrate for arrhythmic death. PMID- 29024686 TI - Increased age-adjusted hazard of death associated with a common single nucleotide polymorphism of the human RAD52 gene in a cardiovascular cohort. AB - Aging may be characterized as the progressive increase of the risk of death caused by a decrease of almost all bodily functions. While a great number of model organism studies have established the role of DNA double strand breaks (DSBs) as one of the main causes of aging, few studies have examined whether common polymorphisms in human DSB repair genes influence aging and mortality. More importantly, to the best of our knowledge, no longitudinal study has thus far examined the link between polymorphisms in DSB repair and the risk of death. This longitudinal study thus analyses whether four common polymorphisms (rs2155209, rs7963551, rs17105278, rs2735383) in four selected DSB repair genes (MRE11A, RAD52, RAD51B, NBS1) influence the hazard of age-adjusted death in a cohort of patients with typical symptoms of ischemic heart disease. The results have shown that rs7963551 G/T heterozygotes exhibit a significantly increased hazard of death when compared with the combined GG and TT homozygotes (HR=1.42, 95% CI: 1.06-1.91, p=0.018). This study indicates that the SNP affecting efficiency of DSB repair may influence aging in humans. PMID- 29024688 TI - Vitiligo Skin: Exploring the Dermal Compartment. AB - There is an increasing interest in the apparently normal skin in vitiligo. Altered expression of the adhesion molecule E-cadherin and persistent deregulated intracellular redox status that promotes the acquisition of a stress-induced senescent phenotype in melanocytes of normally pigmented skin from patients with vitiligo have been described. Growing evidence has shown that such cellular and functional alterations are not necessarily restricted to melanocytes but may be extended to other cutaneous cell populations in both lesional and nonlesional areas. However, whether dermal fibroblasts exhibit related alterations that may contribute to the defects associated with melanocytes in vitiligo is not known. Here we reveal within the dermal compartment cells a myofibroblast phenotype and a predisposition to premature senescence, indicating the existence of altered cross-talk between dermal and epidermal components that may affect melanocyte functionality even in the apparently normal skin of patients with vitiligo. PMID- 29024687 TI - A novel mycovirus associated to Alternaria alternata comprises a distinct lineage in Partitiviridae. AB - In the present work, we report a novel mycovirus that infects Alternaria alternata. The mycovirus has isometric particles of approximately 30nm and the genome consists of two molecules of dsRNA, dsRNA1 with 1833bp, encoding a putative RNA-dependent RNA polymerase (RdRp) and dsRNA2, with 1680bp in length, encoding the putative capsid protein (CP). RdRp analysis revealed low amino acid identity with RdRps with species in the genus Gammapartitivirus, and the alignment of the RdRp revealed all the six conserved motifs present in members of Partitiviridae. The putative coat protein (CP) analysis revealed similarity with the putative CP of Botryosphaeria dothidea partitivirus 1 (BdPV1), a divergent partitivirus. We propose that Alternaria alternata partitivirus 1 (AtPV1) is a novel species and comprises a distinct lineage related to genus Gammapartitivirus in the family Partitiviridae, apparently on the threshold of radiation of a new genus, together with BdPV1. Vertical transmission tests showed that AtPV1 was transmitted to 100% conidial progeny and standard curing was unable to eliminate it from the host, characterizing it as a persistent virus. The absence of a virus free isogenic lineage prevented us from accessing the details of the interaction between AtPV1 and A. alternata. Therefore, it remains unclear whether the morphological plasticity observed or the inability of the A. alternata isolate AVi1 to cause disease in plants is associated with AtPV1 infection. PMID- 29024689 TI - Xeroderma Pigmentosum Diagnosis Using a Flow Cytometry-Based Nucleotide Excision Repair Assay. PMID- 29024690 TI - Sodium channel current loss of function in induced pluripotent stem cell-derived cardiomyocytes from a Brugada syndrome patient. AB - Brugada syndrome predisposes to sudden death due to disruption of normal cardiac ion channel function, yet our understanding of the underlying cellular mechanisms is incomplete. Commonly used heterologous expression models lack many characteristics of native cardiomyocytes and, in particular, the individual genetic background of a patient. Patient-specific induced pluripotent stem (iPS) cell-derived cardiomyocytes (iPS-CM) may uncover cellular phenotypical characteristics not observed in heterologous models. Our objective was to determine the properties of the sodium current in iPS-CM with a mutation in SCN5A associated with Brugada syndrome. Dermal fibroblasts from a Brugada syndrome patient with a mutation in SCN5A (c.1100G>A, leading to Nav1.5_p.R367H) were reprogrammed to iPS cells. Clones were characterized and differentiated to form beating clusters and sheets. Patient and control iPS-CM were structurally indistinguishable. Sodium current properties of patient and control iPS-CM were compared. These results were contrasted with those obtained in tsA201 cells heterologously expressing sodium channels with the same mutation. Patient-derived iPS-CM showed a 33.1-45.5% reduction in INa density, a shift in both activation and inactivation voltage-dependence curves, and faster recovery from inactivation. Co-expression of wild-type and mutant channels in tsA201 cells did not compromise channel trafficking to the membrane, but resulted in a reduction of 49.8% in sodium current density without affecting any other parameters. Cardiomyocytes derived from iPS cells from a Brugada syndrome patient with a mutation in SCN5A recapitulate the loss of function of sodium channel current associated with this syndrome; including pro-arrhythmic changes in channel function not detected using conventional heterologous expression systems. PMID- 29024691 TI - Mechanisms involved in the increased sensitivity of the rabbit basilar artery to atrial natriuretic peptide in diabetes. AB - Atrial natriuretic peptide (ANP) is a vasodilator with significant regional differences and controversial effects in the cerebral circulation, a vascular bed particularly prone to diabetes-induced complications. The present study has investigated how alloxan-induced diabetes modifies the mechanisms involved in the response of the rabbit basilar artery to ANP. ANP (10-12-10-7M) relaxed precontracted basilar arteries, with higher potency in diabetic than in control rabbits. In arteries from both groups of animals, endothelium removal reduced ANP induced relaxations. Inhibition of NO-synthesis attenuated ANP-induced relaxation but this attenuation was lower in diabetic than in control rabbits. In control rabbits, indomethacin displaced to the left the concentration-response curve to ANP, without significantly modifying the Emax value. In diabetic rabbits, indomethacin significantly enhanced arterial relaxations to ANP. In KCl depolarised arteries, relaxation to ANP was almost abolished both in control and in diabetic rabbits. Iberiotoxin inhibited relaxations to ANP in both groups of rabbits. Glibenclamide and 4-aminopyridine inhibited the ANP-induced relaxations more in diabetic than in control rabbits. Basilar arteries from diabetic rabbits showed decreased natriuretic peptide receptor C expression and no changes in natriuretic peptide receptor A, large conductance calcium-activated K+ channels (BKCa), ATP-sensitive K+ channels (KATP) and voltage-sensitive K+ channels (KV) expression. These results suggest that diabetes enhances the sensitivity of the rabbit basilar artery to ANP by mechanisms that at least include reduced expression of natriuretic peptide receptor C, and enhanced activity of KATP and KV channels. Furthermore, diabetes reduces endothelial NO and prostacyclin which mediate arterial relaxation to ANP. PMID- 29024693 TI - Multilocus sequence analysis of Echinococcus granulosus strains isolated from humans and animals in Iran. AB - Echinococcus granulosus is now considered a complex consisting of at least four species and ten genotypes. Different molecular targets have been described for molecular characterization of E. granulosus; however, in almost all studies only one or two of the targets have been used, and only limited data is available on the utilization of multiple loci. Therefore, we investigated the genetic diversity among 64 strains isolated from 138 cyst specimens of human and animal isolates, using a set of nuclear and mitochondrial genes; i.e., cytochrome c oxidase subunit 1 (cox1), NADH dehydrogenase subunit 1 (nad1), ATPase subunit 6 (atp6), 12S rRNA (12S), and Actin II (act II). In comparison to the use of molecular reference targets (nad1 + cox1), using singular target (act II or 12S or atp6) yielded lower discriminatory power. Act II and 12S genes could accurately discriminate the G6 genotype, but they were not able to differentiate between G1 and G3 genotypes. As the G1 and G3 genotypes belong to the E. granulosus sensu stricto, low intra-species variation was observed for act II and 12S. The atp6 gene could identify the G3 genotype but could not differentiate G6 and G1 genotypes. Using concatenated sequence of five genes (cox1 + nad1 + atp6 + 12S + act II), genotypes were identified accurately, and markedly higher resolution was obtained in comparison with the use of reference markers (nad1 + cox1) only. Application of multilocus sequence analysis (MLSA) to large-scale studies could provide valuable epidemiological data to make efficient control and management measures for cystic echinococcosis. PMID- 29024692 TI - The role of hepatocyte growth factor in corneal wound healing. AB - Hepatocyte growth factor (HGF) is a glycoprotein produced by mesenchymal cells and operates as a key molecule for tissue generation and renewal. During corneal injury, HGF is primarily secreted by stromal fibroblasts and promotes epithelial wound healing in a paracrine manner. While this mesenchymal-epithelial interaction is well characterized in various organs and the cornea, the role of HGF in corneal stromal and endothelial wound healing is understudied. In addition, HGF has been shown to play an anti-fibrotic role by inhibiting myofibroblast generation and subsequent production of a disorganized extracellular matrix and tissue fibrosis. Therefore, HGF represents a potential therapeutic tool in numerous organs in which myofibroblasts are responsible for tissue scarring. Corneal fibrosis can be a devastating sequela of injury and can result in corneal opacification and retrocorneal membrane formation leading to severe vision loss. In this article, we concisely review the available literature regarding the role of HGF in corneal wound healing. We highlight the influence of HGF on cellular behaviors in each corneal layer. Additionally, we suggest the possibility that HGF may represent a therapeutic tool for interrupting dysregulated corneal repair processes to improve patient outcomes. PMID- 29024694 TI - Cathepsin D non-proteolytically induces proliferation and migration in human omental microvascular endothelial cells via activation of the ERK1/2 and PI3K/AKT pathways. AB - Epithelial ovarian cancer (EOC) frequently metastasises to the omentum, a process that requires pro-angiogenic activation of human omental microvascular endothelial cells (HOMECs) by tumour-secreted factors. We have previously shown that ovarian cancer cells secrete a range of factors that induce pro-angiogenic responses e.g. migration, in HOMECs including the lysosomal protease cathepsin D (CathD). However, the cellular mechanism by which CathD induces these cellular responses is not understood. The aim of this study was to further examine the pro angiogenic effects of CathD in HOMECs i.e. proliferation and migration, to investigate whether these effects are dependent on CathD catalytic activity and to delineate the intracellular signalling kinases activated by CathD. We report, for the first time, that CathD significantly increases HOMEC proliferation and migration via a non-proteolytic mechanism resulting in activation of ERK1/2 and AKT. These data suggest that EOC cancer secreted CathD acts as an extracellular ligand and may play an important pro-angiogenic, and thus pro-metastatic, role by activating the omental microvasculature during EOC metastasis to the omentum. PMID- 29024696 TI - Wandering thoughts about consciousness, the brain, and the commentary system of Larry Weiskrantz. AB - Larry Weiskrantz has always pursued a keen interest in consciousness in humans and other animals by performing clever experiments and proposing clever ideas. In this rather idiosyncratic essay I selectively review some old and new evidence on real and apparent losses of consciousness in humans, new means that allow the human brain to expose its conscious awareness directly, and experiments on animals that may bridge their consciousness with that of humans. PMID- 29024697 TI - Reply to: "Direct antiviral agents and risk of HCC: Waiting for Godot". PMID- 29024698 TI - Pediatric CLIF-SOFA score is the best predictor of 28-day mortality in children with decompensated chronic liver disease. AB - BACKGROUND & AIMS: Early identification of children with decompensated chronic liver disease (DCLD) at risk of short-term mortality helps improve outcome. We aimed to evaluate the predictors of outcome and role of Child-Pugh, pediatric end stage liver disease (PELD) and pediatric chronic liver failure sequential organ failure assessment (pCLIF-SOFA) score for prognosticating 28-day mortality in children with DCLD. METHODS: DCLD children were prospectively evaluated with a clinico-laboratory proforma and followed for 28 days to determine outcome. Child Pugh, PELD and pCLIF-SOFA were calculated at admission. Univariate and multivariate analysis was performed to identify the best predictors of outcome. RESULTS: A total of 110 children (74 boys, 96 [4-204] months) were enrolled and 37 (33.6%) died at 28 days. Significant risk factors for mortality were a higher international normalized ratio (hazard ratio [HR] 1.17; 95% CI 1.04-1.31; p <0.001) and bilirubin (HR 1.04; 95% CI 1.01-1.08; p <0.001), lower albumin (HR 0.46; 95% CI 0.27-0.77; p = 0.03) and sodium (HR 0.93; 95% CI 0.89-0.98; p = 0.01), absence of treatable etiology (HR 2.00; 95% CI 1.40-2.87; p = 0.001) and presence of organ failure (HR 3.22; 95% CI 1.98-10.58; p <0.001). Organ failure and serum sodium were independent predictors of poor outcome on multivariate analysis. pCLIF-SOFA (16 [9-22] vs. 9 [5-15]), Child-Pugh (11 [9-15] vs. 10 [8 14]) and PELD (22.2 [7.5-45.3] vs. 15.3 [4.5-23.9]) scores were significantly higher in non-survivors. The area under the curve was 0.977 for pCLIF-SOFA, 0.815 for Child-Pugh score, and 0.741 for PELD score. A pCLIF-SOFA score of >=11 identified 28-day mortality with a sensitivity and specificity of 94.9% and 91.5%, respectively. CONCLUSION: Thirty-four percent of children with DCLD have a poor short-term outcome. Organ failure and low serum sodium are independent predictors of outcome. pCLIF-SOFA performs better than Child-Pugh and PELD in prognostication of 28-day mortality. Our study supports the use of scores based on organ failure in prognosticating children with DCLD. LAY SUMMARY: The ability to predict the course of a disease is an important part of the assessment, enabling timely interventions that improve outcomes. We evaluated the outcome (death vs. survival) and compared three different scoring systems for their ability to predict mortality within 28 days in children with decompensated chronic liver disease (DCLD). One-third of children with DCLD died within 28 days and the pediatric chronic liver failure sequential organ failure assessment score, which considers the main organ systems of the body (lungs, liver, brain, kidney, blood and cardiac) fared better for identification of children with a poor outcome than the Child-Pugh and pediatric end-stage liver disease score which comprise of only liver-related parameters. Our study supports the use of scores based on organ failure in prognosticating children with DCLD. PMID- 29024699 TI - Direct antiviral agents and risk of HCC: Waiting for Godot. PMID- 29024695 TI - COPs and POPs Patrol Inflammasome Activation. AB - Sensing and responding to pathogens and tissue damage is a core mechanism of innate immune host defense, and inflammasomes represent a central cytosolic pattern recognition receptor pathway leading to the generation of the pro inflammatory cytokines interleukin-1beta and interleukin-18 and pyroptotic cell death that causes the subsequent release of danger signals to propagate and perpetuate inflammatory responses. While inflammasome activation is essential for host defense, deregulated inflammasome responses and excessive release of inflammatory cytokines and danger signals are linked to an increasing spectrum of inflammatory diseases. In this review, we will discuss recent developments in elucidating the role of PYRIN domain-only proteins (POPs) and the related CARD only proteins (COPs) in regulating inflammasome responses and their impact on inflammatory disease. PMID- 29024700 TI - High YBX1 expression indicates poor prognosis and promotes cell migration and invasion in nasopharyngeal carcinoma. AB - Y-box binding protein-1 (YBX1) is a multifunctional protein and often acts as an indicator of poor prognosis in cancers. Increasing evidence has shown that the levels of YBX1 protein were closely associated with multidrug resistance, relapse, metastasis and poor prognosis in cancers. However, its role in nasopharyngeal carcinoma (NPC) metastasis remains unknown. In our study, we discovered that the expression of YBX1 was increased in nasopharyngeal carcinoma tissues. YBX1 protein levels positively correlated with T stage and metastasis of NPC patients. Moreover, expression of YBX1 was negatively correlated with membrane E-cadherin levels and positively correlated with Vimentin expression. In vitro, the expression of YBX1 was closely related to the invasive and migratory ability of nasopharyngeal carcinoma cells. Knockdown of YBX1 inhibited migration and invasion in 5-8F cells, and over-expression of YBX1 promoted CNE1 cells migration and invasion. Transforming growth factor-beta1 (TGF-beta1) treatment led to epithelial-to-mesenchymal transition (EMT) in CNE1 cells accompanied by elevated YBX1 expression. On the contrary, knockdown of YBX1 partially inhibited the TGF-beta1-induced CNE1 cell migration, together with changes of EMT associated markers. Our study revealed that TGF-beta1/YBX1 signaling might be one of novel mechanisms mediating EMT in NPC, providing a new target for the treatment of nasopharyngeal carcinoma. PMID- 29024701 TI - Dehydroascorbic Acid and pGPMA Dual Modified pH-Sensitive Polymeric Micelles for Target Treatment of Liver Cancer. AB - In clinical therapy, the poor prognosis of hepatocellular carcinoma (HCC) is mainly attributed to the failure of chemotherapeutical agents to accumulate in tumor as well as lack of potency of tumor penetration. In this work, we developed actively tumor-targeting micelles with pH-sensitive linker as a novel nanocarrier for HCC therapy. These micelles comprised biodegradable poly(ethylene glycol) poly(aspartate) polymers, in which paclitaxel can be covalently conjugated to pAsp via an acid-labile acetal bond to form pH-responsive structures. In vitro drug release studies showed that these structures were stable in physiological condition, whereas collapsed once internalized into cells due to the mildly acidic environment in endo/lysosomes, resulting in facilitated intracellular paclitaxel release. In addition, dehydroascorbic acid and guanidinopropyl methacrylamide polymers were decorated on the surface of micelles to achieve specific tumor accumulation and tumor penetration. Cellular uptake and in vivo imaging studies proved that these micelles had remarkable targeting property toward hepatocarcinoma cells and tumor. Enhanced anti-HCC efficacy of the micelles was also confirmed both in vitro and in vivo. Therefore, this micellar system may be a potential platform of chemotherapeutics delivery for HCC therapy. PMID- 29024702 TI - Polycystic ovarian syndrome (PCOS): Long-term metabolic consequences. AB - Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women during their reproductive ages, associated with a plethora of cardiometabolic consequences, with obesity, insulin resistance and hyperandrogenemia playing a major role in the degree of such manifestations. These consequences include increased risk of glucose intolerance and diabetes mellitus (both type 2 and gestational), atherogenic dyslipidemia, systemic inflammation, non-alcoholic fatty liver disease, hypertension and coagulation disorders. Whether this cluster of metabolic abnormalities is also translated in increased cardiovascular disease (CVD) morbidity and mortality in later life, remains to be established. Data so far based on markers of subclinical atherosclerosis as well as retrospective and prospective cohort studies indicate a possible increased CVD risk, mainly for coronary heart disease. Future studies are needed to further elucidate this issue. PMID- 29024703 TI - Massive esophageal hemorrhage. PMID- 29024704 TI - EUS-guided pancreatic pseudoaneurysm therapy: better to be lucky than good. PMID- 29024705 TI - Management of a circumferential duodenal polyp. PMID- 29024706 TI - Identification of circular RNAs in human aortic valves. AB - With the wide application of RNA-Seq technology, thousands of circular RNAs (circRNAs) have been identified in different type of tissues and cells in many organisms, but little is known on the human aortic valve expressed circRNAs. In this study, we identified all circRNAs in two calcified human aortic valves, and characterized the features of all circRNAs. A total of 5476 circRNAs were identified in human aortic valves, including 1412 (25.79%) aortic valve specific circRNAs. Next, we showed that most aortic valve specific circRNAs were derived from the exonic regions of their host genes, and majority of the host genes contained less than three circRNAs. To predict the potential function of aortic valve specific circRNAs, we performed the GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) enrichment analysis for the host genes, and identified both microRNA (miRNA) and RNA binding protein (RBP) binding sites inside aortic valve specific circRNAs. Results showed that these host genes were involved in some aortic valve related function pathways, such as ECM-receptor interaction pathway, ErbB signaling pathway, and vascular smooth muscle contraction pathway. We also found that most aortic valve specific circRNAs harbored abundant miRNA response elements (MREs), and some aortic valve specific circRNAs could bind to RBP of interest. Functional analysis suggested that these aortic valve specific circRNAs could act as post-transcriptional regulators. PMID- 29024707 TI - Gene expression profiling of brain metastatic cell from triple negative breast cancer: Understanding the molecular events. AB - Brain metastatic triple negative breast cancer (BM-TNBC) is afflicted with unfavorable prognosis. However, the molecular events underlying BM-TNBC remain largely unknown. In the present study, we conducted gene expression microarray analysis using the triple negative breast cancer cell line MDA-MB-231 and its brain metastatic derivative (MDA-MB-231Brm). Results of microarray analysis showed that a total of 4296 genes were differentially expressed, of which 2433 genes were up-regulated and 1863 genes were down-regulated. Gene Ontology (GO), KEGG pathway and protein-protein interaction (PPI) analyses indicated differentially expressed genes functionally categorized as genes of signal transduction, multicellular organismal development, ion transport, nervous system development, plasma membrane, extracellular region, calcium ion binding, GTP binding neuroactive ligand-receptor interaction. The validity of the microarray results was verified by quantitative real-time PCR analysis of twelve representative genes. The present findings revealed molecular basis and events associated with brain metastasis in TNBC, which will potentially contribute to the understanding of underlying mechanism and develop therapeutic targets. PMID- 29024708 TI - Nationwide Quality of Hospice Care: Findings From the Centers for Medicare & Medicaid Services Hospice Quality Reporting Program. AB - CONTEXT: With increasing use of the Medicare hospice benefit, policymakers recognize the need for quality measurement to assure that terminally ill patients receive high-quality care and have the information they need when selecting a hospice. Toward these goals, Centers for Medicare & Medicaid Services has been collecting standardized patient-level quality data via the Hospice Item Set (HIS) since July 1, 2014. OBJECTIVE: This article presents a first look at the national hospice HIS quality data. METHODS: We calculated seven quality measures using the HIS data. These measures are endorsed by the National Quality Forum and focus on important care processes hospice providers are required to perform at admission, including discussion of patient preferences regarding life-sustaining treatments, care for spiritual and existential concerns, and symptom management (pain, opioid induced constipation, and dyspnea). RESULTS: Our sample included 1,218,786 hospice patients discharged from 3922 hospices from October 1, 2014 to September 30, 2015. More than 90% of patients received screenings and assessments captured by six of the seven quality measures. The only exception was pain assessment, for which the national mean score was 78.2%. A small number of hospices (156, 4.0%) had perfect scores for all seven quality measures. CONCLUSIONS: Most hospices conduct critical assessments and discuss treatment preferences with patients at admission, although few hospices have perfect scores. PMID- 29024709 TI - Caffeine administration alters the behaviour and development of Galleria mellonella larvae. AB - The effect of feeding caffeine on the behaviour and neural proteome of Galleria mellonella larvae was assessed. Caffeine was administered to larvae by force feeding and the metabolites theobromine and theophylline were subsequently detected by RP-HPLC analysis. Administration of caffeine to larvae resulted in reduced movement and a reduction in the formation of pupae. The production of the muscle relaxant theophylline may contribute to the reduction in larval movement. Analysis of the changes in proteome of the brain and surrounding tissues of caffeine fed larvae revealed an increase in the abundance of immune related proteins such as immune-related Hdd1 (6.28 fold increase) and hemolin (1.68 fold increase), ATPase associated proteins such as H+ transporting ATP synthase O subunit isoform 1 (1.87 fold increase) and H+ transporting ATP synthase delta subunit (1.53 fold increase) and proteins indicative of brain trauma such as troponin T transcript variant B, partial (1.55 fold increase). Proteins involved in development and protein degradation such as SUMO-activating enzyme subunit 1 (3.08 fold decrease) and chitin deacetylase, partial (3.67 fold decrease) were decreased in abundance. The results presented here indicate that caffeine is metabolised in a similar way in G. mellonella larvae to that in mammals and results in a variety of behavioural and developmental alterations. Utilisation of insects for studying the effects of caffeine and other neuroactive compounds may offer new insights into their mode of action and reduce the need to use mammals for this type of analysis. PMID- 29024710 TI - Determination of complex subclonal structures of hematological malignancies by multiplexed genotyping of blood progenitor colonies. AB - Current next-generation sequencing (NGS) technologies allow unprecedented insights into the mutational profiles of tumors. Recent studies in myeloproliferative neoplasms have further demonstrated that, not only the mutational profile, but also the order in which these mutations are acquired is relevant for our understanding of the disease. Our ability to assign mutation order from NGS data alone is, however, limited. Here, we present a strategy of highly multiplexed genotyping of burst forming unit-erythroid colonies based on NGS results to assess subclonal tumor structure. This allowed for the generation of complex clonal hierarchies and determination of order of mutation acquisition far more accurately than was possible from NGS data alone. PMID- 29024711 TI - Fluoride potentiates tubulointerstitial nephropathy caused by unilateral ureteral obstruction. AB - The contamination of ground water by fluoride has been reported worldwide. Most fluoride (approximately 70%) is filtered by the kidneys; humans or experimental animals with renal damage therefore may be more affected by fluoride exposure than those with normal kidney function. Tubulointerstitial fibrosis, which involves macrophage-promoted extracellular matrix production and myofibroblast migration, can be induced in rats by unilateral ureteral obstruction (UUO). We examined the effects of fluoride exposure on tubulointerstitial fibrosis in the obstructed kidney of UUO rats. The left ureters of 6-week-old male rats were ligated using silk sutures. Fluoride was then administered for 2 weeks at doses of 0, 75, and 150ppm in the drinking water. Real-time polymerase chain reaction was performed to analyze transforming growth factor beta 1 (TGF-beta1) transcription; histological and immunohistochemical staining were used to identify positive areas within the renal cortex and staining-positive cells by image analysis. Significant increases were observed in the obstructed kidneys of UUO rats exposed to 150ppm fluoride (compared to 0ppm) for areas or number of cells that stained with Masson trichrome or with antibodies against collagen type I, alpha-smooth muscle actin (alpha-SMA, a myofibroblast marker), ED1, ED2, and ED3 (macrophage markers), and TGF-beta1. Taken together, these observations suggested that fluoride exacerbates tuburointerstitial nephropathy resulting from UUO, and that this effect occurs via activation of the M2 macrophage-TGF-beta1 fibroblast/myofibroblast-collagen synthesis pathway. PMID- 29024712 TI - Brief activation of GABAergic interneurons initiates the transition to ictal events through post-inhibitory rebound excitation. AB - Activation of gamma-aminobutyric acid (GABAA) receptors have been associated with the onset of epileptiform events. To investigate if a causal relationship exists between GABAA receptor activation and ictal event onset, we activated inhibitory GABAergic networks in the superficial layer (2/3) of the somatosensory cortex during hyperexcitable conditions using optogenetic techniques in mice expressing channelrhodopsin-2 in all GABAergic interneurons. We found that a brief 30ms light pulse reliably triggered either an interictal-like event (IIE) or ictal like ("ictal") event in the in vitro cortical 4-Aminopyridine (4-AP) slice model. The link between light pulse and epileptiform event onset was lost following blockade of GABAA receptors with bicuculline methiodide. Additionally, recording the chronological sequence of events following a light pulse in a variety of configurations (whole-cell, gramicidin-perforated patch, and multi-electrode array) demonstrated an initial hyperpolarization followed by post-inhibitory rebound spiking and a subsequent slow depolarization at the transition to epileptiform activity. Furthermore, the light-triggered ictal events were independent of the duration or intensity of the initiating light pulse, suggesting an underlying regenerative mechanism. Moreover, we demonstrated that brief GABAA receptor activation can initiate ictal events in the in vivo 4-AP mouse model, in another common in vitro model of epileptiform activity, and in neocortical tissue resected from epilepsy patients. Our findings reveal that the synchronous activation of GABAergic interneurons is a robust trigger for ictal event onset in hyperexcitable cortical networks. PMID- 29024713 TI - A lack of GluN2A-containing NMDA receptors confers a vulnerability to redox dysregulation: Consequences on parvalbumin interneurons, and their perineuronal nets. AB - The GluN2A subunit of NMDA receptors (NMDARs) plays a critical role during postnatal brain development as its expression increases while Glun2B expression decreases. Mutations and polymorphisms in GRIN2A gene, coding for GluN2A, are linked to developmental brain disorders such as mental retardation, epilepsy, schizophrenia. Published data suggest that GluN2A is involved in maturation and phenotypic maintenance of parvalbumin interneurons (PVIs), and these interneurons suffer from a deficient glutamatergic neurotransmission via GluN2A-containing NMDARs in schizophrenia. In the present study, we find that although PVIs and their associated perineuronal nets (PNNs) appear normal in anterior cingulate cortex of late adolescent/young adult GRIN2A KO mice, a lack of GluN2A delays PNN maturation. GRIN2A KO mice display a susceptibility to redox dysregulation as sub threshold oxidative stress and subtle alterations in antioxidant systems are observed in their prefrontal cortex. Consequently, an oxidative insult applied during early postnatal development increases oxidative stress, decreases the number of parvalbumin-immunoreactive cells, and weakens the PNNs in KO but not WT mice. These effects are long-lasting, but preventable by the antioxidant, N acetylcysteine. The persisting oxidative stress, deficit in PVIs and PNNs, and reduced local high-frequency neuronal synchrony in anterior cingulate of late adolescent/young adult KO mice, which have been challenged by an early-life oxidative insult, is accompanied with microglia activation. Altogether, these indicate that a lack of GluN2A-containing NMDARs alters the fine control of redox status, leading to a delayed maturation of PNNs, and conferring vulnerability for long-term oxidative stress, microglial activation, and PVI network dysfunction. PMID- 29024714 TI - Antibacterial effect and bond strength of a modified dental adhesive containing the peptide nisin. AB - This study attempted to incorporate the antibacterial peptide nisin into an etch and-rinse dental adhesive to evaluate the antibacterial activity of the modified adhesive against Streptococcus mutans and the bond strength. Single Bond 2 was used as a negative control, and nisin was incorporated at 1%, 3%, and 5% (w/v). The antibacterial activity against S. mutans was evaluated using the film contact test, the agar diffusion test, XTT assays and confocal laser scanning microscopy (CLSM). The microtensile bond strength (MUTBS) of the modified dental adhesive was also evaluated. The cured nisin-incorporated dental adhesive exhibited a significant inhibitory effect on the growth of S. mutans (P<0.05), and the inhibitory effect was strengthened as the nisin concentration increased (P<0.05). However, no significant differences in the agar diffusion test were found for the cured nisin-incorporated adhesives compared with the control group. Based on XTT results and CLSM images, the cured nisin-incorporated adhesive interfered with the adherence of S. mutans and the integrity of its biofilms (P<0.05). Compared with the control group, the 1% nisin group did not exhibit a significant difference in MUTBS (P>0.05), whereas the 3% and 5% nisin groups displayed decreased bond strength (P<0.05). PMID- 29024715 TI - Proposal of a flow scheme for the chemical-form-based quantitative analysis of chlorine compounds in pulp for sanitary products and verification of safety. AB - To determine the amounts and chemical forms of chlorine compounds in elemental chlorine-free (ECF) bleached pulp for sanitary products, a chemical-form-based quantitative analysis flow scheme was created. The scheme involves quantitative determination of compounds eluted in elution tests assuming dermal exposure. The results indicated that most of the chlorine compounds in pulp used for sanitary products were insoluble organically bound chlorine and water-soluble chlorides consisting of chloride ions. The total amount of chlorine obtained by analysis of the total chlorine in the pulp products was close to the sum of the amounts of water-soluble chlorides, residual chlorine, chloroacetic acids, and insoluble organically bound chlorine. Therefore, the balance of chlorine measured by the flow scheme was acceptable. Little residual chlorine was detected in the pulp products, suggesting that the chlorine dioxide used for bleaching was almost completely converted into inactive inorganic chlorides and organic chlorine compounds and that these substances do not affect the health risk posed by pulp products. A risk assessment of the detected chloroacetic acid and dichloroacetic acid revealed that there is no concern about the health risk posed by use of these products. PMID- 29024716 TI - Accelerated humoral renal allograft rejection due to HLA-C14 mediated allosensitization to HLA-Bw6. AB - OBJECTIVES: To investigate immunological mechanisms underlying accelerated antibody-mediated rejection (AMR) of a living-related renal allograft in a patient with no detectable antibodies to donor human leukocyte antigens (HLA) in pre-transplant sera. METHODS: Pre- and post-transplant HLA antibody specificities were determined by single-antigen bead assay, and crossmatching was performed by flow cytometry- and complement-dependent cytotoxicity-based methods. Intermediate and high-resolution HLA typing were performed by molecular methods. RESULTS: Pre transplant patient serum reacted weakly against Bw6-positive beads; cytotoxicity and flow crossmatches were negative. The patient was mismatched for the donor antigens B62 and C10 (Bw6-positive). Following transplantation, strong antibody responses against B62, C10, and all Bw6-positive beads were detected. This reactivity was initially masked by complement interference, but became apparent at 1:20 dilution. High-resolution typing suggested that the anti-C16 antibody reactivity detected was an allele-specific response to donor C*16:01 (Bw6 positive) but not recipient C*16:02 (Bw6-negative). Alloimmunization likely occurred during pregnancy, during which HLA-C14 (Bw6-positive) was the only mismatched paternal HLA Class I allele. CONCLUSIONS: Sensitization to HLA-Bw6 via exposure to paternal HLA-C14 during pregnancy likely predisposed this patient to AMR. The case demonstrates the immunogenicity of HLA-C14-associated Bw6 epitopes in vivo and the clinical significance of low-level antibodies to HLA-Bw6. PMID- 29024717 TI - Supplementation of American ginseng berry extract mitigated cisplatin-evoked nephrotoxicity by suppressing ROS-mediated activation of MAPK and NF-kappaB signaling pathways. AB - Nephrotoxicity induced by cisplatin in 30% of all cisplatin treated patients seriously limits its clinical implication as a widely used anticancer agent, and may even cause patients to alter or give up cisplatin therapy. The purpose of this study is to test a protective effect of American ginseng berry extract (AGBE) on cisplatin-induced nephrotoxicity in mice. In this study, the histopathological changes and elevated levels of serum creatinine (CRE) and urea nitrogen (BUN) caused by cisplatin were significantly diminished by AGBE treatment. Oxidative stress caused by cisplatin, evidenced by increases in kidney tissues malondialdehyde (MDA) content, cytochrome P450 E1 (CYP2E1), renal 4 hydroxynonenal (4-HNE) levels and decreases of glutathione (GSH) and superoxide dismutase (SOD) contents, was significantly ameliorated by AGBE pretreatment. The expression levels of tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) were inhibited by AGBE treatment, suggesting a suppression of inflammatory response. Additionally, AGBE clearly inhibited cisplatin-induced activations of nuclear factor-kappa B (NF-kappaB) and mitogen activated protein kinase (MAPK) signal pathways. Supplementation of cisplatin-intoxicated mice with AGBE also significantly reduced apoptotic protein levels of Bax, cleaved caspase-3, cytochrome c and increased anti-apoptotic protein Bcl-2. These findings highlight nephroprotective effect of AGBE against cisplatin-evoked nephrotoxicity through ROS-mediated MAPK and NF-kappaB signaling pathways. PMID- 29024718 TI - A Randomized Controlled Trial of Continuous Subpleural Bupivacaine After Thoracoscopic Surgery. AB - We sought to evaluate the merit of routine placement of a subpleural tunneled pain catheter delivering local anesthetic as measured by narcotic medication usage and subjective pain score analysis. Eighty-six patients were randomized into the subpleural catheter or intraoperative incision site injection groups in a 1:1 fashion, and underwent thoracoscopic surgery using 2 incisions. All patients had standardized anesthetic delivery and postoperative pain control. Patients' use of pain medication and pain scores was tracked for 7 days postoperatively. There was no significant difference in the 2 groups' usage of narcotics (P = 0.23), acetaminophen (P = 0.23), or nonsteroidal antiinflammatory drugs (P = 0.57) over time from linear mixed model analysis. The subpleural catheter group had significantly higher nonsteroidal antiinflammatory drug self reported usage on postoperative day 4 (P = 0.04), postoperative day 5 (P = 0.05), postoperative day 6 (P = 0.01), and postoperative day 7 (P <0.01). There were no significant differences in average daily pain scores (all P >= 0.06). Length of hospital stay and results from 30-day postoperative surveys were not significantly different between the subpleural catheter and the intraoperative incision site injection groups. Our results did not show any objective differences between the subpleural catheter and the intraoperative incision site injection groups to justify routine use of tunneled subpleural catheters. The main limitation of this study is missing self-reported data. The differences noted in daily nonsteroidal antiinflammatory drug use in the pain catheter arm may actually suggest slightly worse pain control in those patients, although the clinical significance seems to be minimal. PMID- 29024719 TI - Calcification or Not. This Is the Question. A 1-Year Study of Bovine Pericardial Vascular Patches (CardioCel) in Minipigs. AB - A main problem with bioprosthesis used for surgical correction of congenital cardiac malformation is its tendency to shrink and to calcify. Recently, a new material, that is, decellularized bovine pericardium (CardioCel), was introduced in clinics. It was proposed that this new patch material should not calcify and should be particularly suitable for the correction of vascular defects in inborn cardiac diseases. The aim of our chronic minipig study was to evaluate the performance of CardioCel patches implanted in aortic and pulmonary artery position, respectively. Ten minipigs aged 3 months were operated on. A CardioCel patch was implanted in the aorta ascendens and arteria pulmonalis, respectively. Seven minipigs completed the 12 months' follow-up. Angiography of both vessels, measurement of pressure gradients, and histologic evaluation of the implanted patches were carried out. Angiography of both great vessels revealed a good clinical outcome without stenosis. However, histologic examination of the patches showed calcification and neo-formation of hyaline cartilage in both vessel types. Staining of collagen and elastic fibers as well as alpha-smooth muscle actin demonstrated that the patches did not remodel into an anatomic vascular structure during the 1 year of implantation. In our chronic piglet model, CardioCel patches, when implanted in the ascending aorta and the pulmonary artery, led to calcification and neo-formation of hyaline cartilage in both vessel types 1 year after implantation. The present study indicates that the ideal patch biomaterial for repair of inborn cardiac diseases is still a goal not achieved yet. PMID- 29024721 TI - Systems approaches for identifying disease genes and drug targets. PMID- 29024720 TI - Disruptions to the cerebellar GABAergic system in juvenile guinea pigs following preterm birth. AB - BACKGROUND: Children that are born preterm are at an increased risk of developing cognitive problems and behavioural disorders, such as attention deficit hyperactivity disorder (ADHD). There is increasing interest in the role of the cerebellum in these processes and the potential involvement of GABAergic pathways in neurodevelopmental disorders. We propose that preterm birth, and the associated loss of the trophic intrauterine environment, alters the development of the cerebellum, contributing to ongoing neurobehavioral disorders. METHODS: Guinea pigs were delivered preterm (GA62) or spontaneously at term (GA69), and tissues collected at corrected postnatal day (PND) 28. Neurodevelopmental and GABAergic markers myelin basic protein (MBP), neuronal nuclei (NeuN), calbindin (Purkinje cells), and GAD67 (GABA synthesis enzyme) were analysed in cerebellar lobules IX and X by immunohistochemistry. Protein expression of GAD67 and GAT1 (GABA transporter enzyme) were quantified by western blot, whilst neurosteroid sensitive GABAA receptor subunits were measured by RT-PCR. RESULTS: MBP immunostaining was increased in lobule IX of preterm males, and reduced in lobule X of preterm females when compared to their term counterparts. GAD67 staining was decreased in lobule IX and X of the preterm males, but only in lobule X of the preterm females compared to term cohorts for each sex. Internal granule cell layer width of lobule X was decreased in preterm cohorts of both sexes compared to terms. There were no differences between gestational age groups for NeuN staining, GAD67 and GAT1 protein expression as measured by western blotting, or GABAA receptor subunits as measured by RT-PCR between preterm and term for either sex. CONCLUSIONS: The present findings suggest that components of the cerebellar GABAergic system of the ex-preterm cerebellum are disrupted. The higher expression of myelin in the preterm males may be due to a deficit in axonal pruning, whereas females have a deficit in myelination at 28 corrected days of age. Together these ongoing alterations may contribute to the neurodevelopmental and behavioural disorders observed in those born preterm. PMID- 29024722 TI - Cellular immune activation in Sardinian middle-aged, older adults and centenarians. AB - In addition to viral infections, malignant disorders, autoimmune diseases, and allograft rejection episodes, neopterin increases in older people where it is found to be predictive of overall mortality. Thus, the serum concentrations of this biomarker of systemic immune and inflammation activation, were measured in a small cohort of Sardinian middle-aged, older adults and centenarians. There was a significant positive correlation between neopterin concentrations and age with the subjects in the 95-year-old group with the highest values. Notably, the group of centenarians had neopterin values comparable to those of 80- and 90-year-old groups, and significantly lower than that of 95-year-old group. This suggests a decreased monocyte/macrophage-mediated immune activation and an apparently preserved immune status in centenarians. PMID- 29024723 TI - Homocysteine concentrations in the cognitive progression of Alzheimer's disease. AB - OBJECTIVES: Hyperhomocysteinemia in Alzheimer's disease (AD) is widely reported and appears to worsen as the disease progresses. While active dietary intervention with vitamins B12 and folate decreases homocysteine blood levels, with promising clinical outcomes in Mild Cognitive Impairment (MCI), this so far has not been replicated in established AD populations. The aim of the study is to explore the relationship between hyperhomocystenemia and relevant vitamins as the disease progresses. METHODS: In this longitudinal cohort study, 38 participants with mild to moderate AD were followed for an average period of 13months. Plasma folate, vitamin B12 and homocysteine concentrations were measured at baseline and at follow-up. Dietary intake of B vitamins was also measured. Spearman's correlations were conducted by homocysteine and B vitamin status. RESULTS: As expected, cognitive status significantly declined over the follow-up period and this was paralleled by a significant increase in homocysteine concentrations (p=0.006). However, during this follow-up period there was no significant decline in neither dietary intake, nor the corresponding blood concentrations of vitamin B12/folate, with both remaining within normal values. Changes in blood concentrations of B vitamins were not associated with changes in homocysteine levels (p>0.05). CONCLUSION: In this study, the increase in homocysteine observed in AD patients as the disease progresses cannot be solely explained by dietary and blood levels of folate and vitamin B12. Other dietary and non-dietary factors may contribute to hyperhomocysteinemia and its toxic effect in AD, which needs to be explored to optimise timely intervention strategies. PMID- 29024724 TI - PAXgene fixation enables comprehensive metabolomic and proteomic analyses of tissue specimens by MALDI MSI. AB - An alcohol-based non-crosslinking tissue fixative, PAXgene Tissue System, has been proposed as alternative fixation method to formalin, providing superior and morphological preservation. To date, metabolites have not been assessed in PAXgene-fixed tissues. The study focuses on a comparison between PAXgene and standard formalin fixation for metabolomic analysis by MALDI mass spectrometry imaging. Therefore, fifty-six samples from seven mice organs were fixed with PAXgene (PFPE) or formalin (FFPE), embedded in paraffin, and processed to a tissue microarray. PAXgene was able to spatially preserve metabolites in organs achieving an overlap of common metabolites ranging from 34 to 78% with FFPE. Highly similar signal intensities and visualization of molecules demonstrated negligible differences for metabolite imaging on PFPE compared to FFPE tissues. In addition, we performed proteomic analysis of intact proteins and peptides derived from enzymatic digestion. An overlap of 33 to 58% was found between FFPE and PFPE tissue samples in peptide analysis with a higher number of PFPE-specific peaks. Analysis of intact proteins achieved an overlap in the range of 0 to 28% owing to the poor detectability of cross-linked proteins in formalin-fixed tissues. Furthermore, metabolite and peptide profiles obtained from PFPE tissues were able to correctly classify organs independent of the fixation method, whereas a distinction of organs by protein profiles was only achieved by PAXgene fixation. Finally, we applied MALDI MSI to human biopsies by sequentially analyzing metabolites and peptides within the same tissue section. Concerning prospective studies, PAXgene can be used as an alternative fixative for multi omic tissue analysis. PMID- 29024725 TI - Glucagon, a key factor in the pathophysiology of type 2 diabetes. AB - Excessive circulating glucagon levels have been reported in all forms of diabetes, clinical or experimental. The hyperglucagonemia of diabetes results from an excessive secretion of the hormone secondary from a deficit in insulin secretion and/or a dysfunction of various cells within the islets of Langerhans (somatostatin) leading to the notion of "paracrinopathy". Hyperglucagonemia contributes to the fasting and postprandial hyperglycemia in diabetic patients through an increased hepatic glucose production (mainly gluconeogenesis). The aim of the present review is to summarize the clinical and experimental arguments suggesting that glucagon is essential for the development of glucose dysregulation in diabetes. PMID- 29024726 TI - The antiepileptic drug levetiracetam promotes neuroblast differentiation and expression of superoxide dismutase in the mouse hippocampal dentate gyrus via PI3K/Akt signalling. AB - Levetiracetam (LEV), a second-generation antiepileptic drug, is commonly prescribed to treat certain types of seizures. Few studies have investigated the effects of LEV on hippocampal neurogenesis and its related mechanisms. In the present study, we investigated the effects of LEV on cell proliferation and neuronal differentiation in the mouse hippocampal dentate gyrus (DG). We here demonstrate a dose-dependent increase in Ki-67-immunoreactive cells in the subgranular zone of the DG in LEV-treated mice, and doublecortin-immunoreactive cells were also significantly increased in the hippocampal DG of mice treated with LEV. The above results indicate that LEV could improve cell proliferation and neuroblast differentiation in the hippocampus. In addition, we also found that LEV treatment improved superoxide dismutase (SOD)2, catalase and Gpx-1 levels and increased phosphatidylinositol 3-kinase (PI3K) and phosphorylated Akt protein levels in the hippocampus. Further investigation of the molecular mechanisms underlying these effects revealed that PC12 cell was blocked by a pharmacological inhibitor of PI3K (LY294002), and that LEV treatment rapidly activated PI3K/Akt and SOD2, catalase and Gpx-1. In brief, our results indicate that LEV enhanced cell proliferation and neuroblast differentiation by increasing the expression of antioxidants and PI3K and the level of phosphorylated Akt in the mouse hippocampus. PMID- 29024727 TI - Interspecific comparison of mushroom body synaptic complexes of dimorphic workers in the ant genus Pheidole. AB - Social insects may have morphologically and behaviorally specialized workers that vary in requirements for sensory information processing, making them excellent systems to examine the relationship between brain structure and behavior. The density and size of synaptic complexes (microglomeruli, MG) in the mushroom bodies (MB) have served as proxies for processing ability and synaptic plasticity, and have been shown to vary among insect species that differ in behavioral complexity. To understand the relationship between behavioral specialization and synaptic structure, we examined age-related changes in MG density and size between minor worker and soldier subcastes in two species of Pheidole ants, P. dentata and P. morrisi, that differ in behavior. We hypothesized that task-diverse minor workers would have more densely packed MG than soldiers, and that species-specific differences in soldier repertories would be reflected in MG structure. We also examined MG variation in young and mature minor workers and soldiers, predicting that as workers age and develop behaviorally, MG would decrease in density in both subcastes due to synaptic pruning. Results support the hypothesis that MG density in the lip (olfactory) and collar (visual) regions of the MBs decrease with age in association with increases in bouton size in the lip. However, minors had significantly lower densities of MG in the lip than soldiers, suggesting MG may not show structural variation according to subcaste-related differences in cognitive demands in either species. PMID- 29024728 TI - Tablet coating by injection molding technology - Optimization of coating formulation attributes and coating process parameters. AB - We developed and evaluated a solvent-free injection molding (IM) coating technology that could be suitable for continuous manufacturing via incorporation with IM tableting. Coating formulations (coating polymers and plasticizers) were prepared using hot-melt extrusion and screened via stress-strain analysis employing a universal testing machine. Selected coating formulations were studied for their melt flow characteristics. Tablets were coated using a vertical injection molding unit. Process parameters like softening temperature, injection pressure, and cooling temperature played a very important role in IM coating processing. IM coating employing polyethylene oxide (PEO) based formulations required sufficient room humidity (>30% RH) to avoid immediate cracks, whereas other formulations were insensitive to the room humidity. Tested formulations based on Eudrajit E PO and Kollicoat IR had unsuitable mechanical properties. Three coating formulations based on hydroxypropyl pea starch, PEO 1,000,000 and Opadry had favorable mechanical (<700MPa Young's modulus, >35% elongation, >95*104J/m3 toughness) and melt flow (>0.4g/min) characteristics, that rendered acceptable IM coats. These three formulations increased the dissolution time by 10, 15 and 35min, respectively (75% drug release), compared to the uncoated tablets (15min). Coated tablets stored in several environmental conditions remained stable to cracking for the evaluated 8-week time period. PMID- 29024729 TI - Integrating genome-wide association study and expression quantitative trait locus study identifies multiple genes and gene sets associated with schizophrenia. AB - Schizophrenia is a serious mental disease with high heritability. To better understand the genetic basis of schizophrenia, we conducted a large scale integrative analysis of genome-wide association study (GWAS) and expression quantitative trait loci (eQTLs) data. GWAS summary data was derived from a published GWAS of schizophrenia, containing 9394 schizophrenia patients and 12,462 healthy controls. The eQTLs dataset was obtained from an eQTLs meta analysis of 5311 subjects, containing 923,021 cis-eQTLs for 14,329 genes and 4732 trans-eQTLs for 2612 genes. Genome-wide single gene expression association analysis was conducted by SMR software. The SMR analysis results were further subjected to gene set enrichment analysis (GSEA) to identify schizophrenia associated gene sets. SMR detected 49 genes significantly associated with schizophrenia. The top five significant genes were CRELD2 (p value=1.65*10-11), DIP2B (p value=3.94*10-11), ZDHHC18 (p value=1.52*10-10) and ZDHHC5 (p value=7.45*10-10), C11ORF75 (p value=3.70*10-9). GSEA identified 80 gene sets with p values <0.01. The top five significant gene sets were COWLING_MYCN_TARGETS (p value <0.001) and CHR16P11 (p value <0.001), ACTACCT_MIR196A_MIR196B (p value=0.002), CELLULAR_COMPONENT_DISASSEMBLY (p value=0.002) and GRAESSMANN_RESPONSE_TO_MC_AND_DOXORUBICIN_DN (p value=0.002). Our results provide useful information for revealing the genetic basis of schizophrenia. PMID- 29024731 TI - The "Y" technique: An attempt to standardize nail dressing. PMID- 29024730 TI - Effects of therapeutic hypothermia on the gut microbiota and metabolome of infants suffering hypoxic-ischemic encephalopathy at birth. AB - Neonatal hypoxic ischemic encephalopathy (HIE) in the perinatal period can lead to significant neurological deficits in later life. Total body cooling (TBC) is a neuroprotective strategy used in the treatment of HIE and has been shown to reduce seizures and improve neurodevelopmental outcomes in treated infants. Little is known, however, about the effects of HIE/TBC on the developing gut microbiota composition and subsequent metabolic profile. Ten term infants with HIE who received TBC at 33.5 degrees C for 72h were recruited. A control group consisted of nine healthy full term infants. Faecal samples were collected from both groups at 2 years of age and stored at -20 degrees C. 16S rRNA amplicon Illumina sequencing was carried out to determine gut microbiota composition and 1H NMR analysis was performed to determine the metabolic profile of faecal water. The gut microbiota composition of the HIE/TBC infants were found to have significantly lower proportions of Bacteroides compared to the non-cooled healthy control group. Alpha diversity measures detected significantly lower diversity in microbial richness in the HIE/TBC infant group compared to the control infants (Shannon index, <0.05). High inter-individual variation was found in gut microbiota composition and metabolic profile of both groups. Initial principal coordinate analysis and hierarchal clustering of compounds on MetaboAnalyst 3.0 indicated no clear separation in the metabolic profile of these two infant groups. These results suggest that there is no significant impact on the gut microbial development of HIE/TBC infants compared to healthy infants at 2years of life. To our knowledge this is the first study to report the gut microbiota composition and metabolic profile of infants who have experienced HIE/TBC at birth. PMID- 29024732 TI - Trends in US dermatology residency and fellowship programs and positions, 2006 to 2016. PMID- 29024733 TI - The tenting technique: A novel filler technique in the danger zones. PMID- 29024735 TI - Quantitative Analysis of Technological Innovation in Urology. AB - OBJECTIVE: To assess major areas of technological innovation in urology in the last 20 years using patent and publication data. METHODS: Patent and MEDLINE databases were searched between 1980 and 2012 electronically using the terms urology OR urological OR urologist AND "surgeon" OR "surgical" OR "surgery". The patent codes obtained were grouped in technology clusters, further analyzed with individual searches, and growth curves were plotted. Growth rates and patterns were analyzed, and patents were correlated with publications as a measure of scientific support and of clinical adoption. RESULTS: The initial search revealed 417 patents and 20,314 publications. The top 5 technology clusters in descending order were surgical instruments including urinary catheters, minimally invasive surgery (MIS), lasers, robotic surgery, and image guidance. MIS and robotic surgery were the most emergent clusters in the last 5 years. Publication and patent growth rates were closely correlated (Pearson coefficient 0.78, P <.01), but publication growth rate remained constantly higher than patent growth, suggesting validated scientific support for urologic innovation and adoption into clinical practice. CONCLUSION: Patent metrics identify emergent technological innovations and such trends are valuable to understand progress in the field of urology. New surgical technologies like robotic surgery and MIS showed exponential growth in the last decade with good scientific vigilance. PMID- 29024734 TI - Clinical and dermoscopic characterization of pediatric and adolescent melanomas: Multicenter study of 52 cases. AB - BACKGROUND: Knowledge regarding the morphologic spectrum of pediatric melanoma (PM) is sparse, and this may in part contribute to delay in detection and thicker tumors. OBJECTIVE: To analyze the clinicodermoscopic characteristics of PM. METHODS: Retrospective study of 52 melanomas diagnosed in patients before the age of 20 years. RESULTS: On the basis of its clinical, dermoscopic, and histopathologic characteristics, PM can be classified as spitzoid or nonspitzoid. The nonspitzoid melanomas (n = 37 [72.3%]) presented in patients with a mean age of 16.3 years (range, 8-20) and were associated with a high-risk phenotype and a pre-existing nevus (62.2%). The spitzoid melanomas (n = 15 [27.7%]) were diagnosed in patients at a mean age of 12.5 years (range, 2-19) and were mostly de novo lesions (73.3%) located on the limbs (73.3%). Whereas less than 25% of PMs fulfilled the modified clinical ABCD criteria (amelanotic, bleeding bump, color uniformity, de novo at any diameter), 40% of spitzoid melanomas did. Dermoscopic melanoma criteria were found in all cases. Nonspitzoid melanomas tended to be multicomponent (58.3%) or have nevus-like (25%) dermoscopic patterns. Spitzoid melanomas revealed atypical vascular patterns with shiny white lines (46.2%) or an atypical pigmented spitzoid pattern (30.8%). There was good correlation between spitzoid subtype histopathologically and dermoscopically (kappa = 0.66). LIMITATIONS: A retrospective study without re-review of pathologic findings. CONCLUSION: Dermoscopy in addition to conventional and modified clinical ABCD criteria helps in detecting PM. Dermoscopy assists in differentiating spitzoid from nonspitzoid melanomas. PMID- 29024736 TI - A Survey Regarding Preference in the Management of Bilateral Stone Disease and a Comparison of Clavien Complication Rates in Bilateral vs Unilateral Percutaneous Nephrolithotomy. AB - OBJECTIVE: To discuss complications of simultaneous bilateral percutaneous nephrolithotomy (SB-PCNL) when compared with unilateral percutaneous nephrolithotomy and survey surgeon preference in bilateral stone disease management. PATIENTS AND METHODS: A database of all participating percutaneous nephrolithotomy (PCNL) patients who underwent treatment at Indiana University Health Methodist Hospital within a 10-year period from 2006 to 2015 by a single surgeon (JL) was utilized. Perioperative data, as well as complications, defined according to the Clavien grading system, were recorded. A survey of members of the Endourological Society was performed regarding surgical management in the setting of bilateral stone disease. RESULTS: A total of 563 patients were identified over the study period with 129 undergoing SB-PCNL. Overall, SB-PCNL patients had a longer procedure (176.9 vs 115.6 minutes, P <.0001), were more likely to undergo a secondary procedure (73% vs 44, P <.001), and had a longer hospital stay (3.2 vs 2.3 days, P <.001). Notably, there were no differences in the number or the severity of complications between the 2 groups. A total of 153 endourologists completed the survey. Of these endourologists, 58 (38%) performed bilateral PCNL under anesthesia. The top reasons for electing not to perform bilateral PCNLs included the duration of bilateral procedures (53%), bilateral renal injury (48%), and rare performance of bilateral surgery (35%). CONCLUSION: Although the procedure length was longer in the SB-PCNL group, there were similar rates of complications and severity between unilateral PCNL and SB-PCNL. A majority of endourologists surveyed do not perform bilateral PCNL but would perform bilateral ureteroscopy with the duration of the procedure and concern for bilateral renal injury representing the most common reasons. PMID- 29024737 TI - Pseudomyxoma Peritonei Arising From Urachal Mucinous Adenocarcinoma. AB - Pseudomyxoma peritonei is a rare clinical condition that can arise from various primary tumors with different biological behaviors. An intraperitoneal spread of mucus is the characteristic of the disease. Here, we provide images from a rare entity, a pseudomyxoma peritonei arising from urachal mucinous adenocarcinoma. If clinical suspicion is high, the preoperative imaging could be almost pathognomonic of the disease. PMID- 29024738 TI - New Hybrid Mini-laparoendoscopic Single-site Partial Nephrectomy With Early Unclamped Technique for Renal Tumors With Intermediate PADUA Score (IDEAL Phase 2a). AB - OBJECTIVE: To evaluate a new hybrid technique, which we defined as mini laparoendoscopic single-site partial nephrectomy (MILESS-PN), for renal masses presenting an intermediate PADUA score. MATERIALS AND METHODS: Forty consecutive cases of MILESS-PN performed between April 2013 and November 2015 were included in this study. Mini-laparoendoscopic single-site surgery consisted of the simultaneous use of two 3-mm pararectal trocars and an umbilical SILS trocar; the sequence of steps of MILESS-PN was comparable with standard laparoscopic partial nephrectomy. Demographic data and the main perioperative and oncological outcome parameters were gathered and analyzed. RESULTS: The median operative time was 134.6 (interquartile range [IQR] 110-180) minutes with a median warm ischemia time of 12.1 (IQR 9.5-15.5) minutes. Postoperatively, 4 early complications were recorded and the median hospital stay was 4.2 (IQR 3.5-6.0) days. The median renal tumor size was 3.6 (IQR 2.4-5.3) cm with a median PADUA score of 8.3 (IQR 8 9). The definitive pathologic results revealed a renal cell carcinoma in 32 cases (80%), an angiomyolipoma in 3 cases (7.5%), and an oncocytoma in 5 cases (12.5%). All tumors were removed with negative surgical margins, and at the median follow up of 34.5 (IQR 24-48) months, all patients were alive without evidence of tumor recurrence or port-site metastasis. A statistically significant decrease in the estimated glomerular filtration rate (eGFR) was observed postoperatively (postoperative vs preoperative median eGFR: 87.6 [IQR 70.4-101.8] and 104.7 [IQR 82.7-123.3], P <.0001) and at 6 months (6 months vs preoperative eGFR 93.6 [IQR 79.1-110.2] and 104.7 [IQR 82.7-123.3], P <.0001). CONCLUSION: MILESS-PN for renal tumors with an intermediate PADUA score in well-selected patients is not associated with increased risks for the patients, presenting excellent oncological and functional results at the midterm follow-up. Mini laparoendoscopic single-site surgery could represent a valid alternative to laparoendoscopic single-site surgery or minilaparoscopy because of its higher surgical reproducibility. PMID- 29024739 TI - Direct antiviral agents (DAAs) - A new age in the treatment of hepatitis C virus infection. AB - Hepatitis C virus (HCV) is a global health problem, because infection frequently leads to chronic hepatitis C eventually progressing to liver cirrhosis and liver cancer. Improved insights into the HCV replication cycle and the role of HCV non structural proteins have recently enabled to identify drugs directly acting on specific HCV target structures. Agents from three drug classes have been developed and approved by the health authorities. Combinations of two or more drugs from different classes achieve high (>90%) HCV clearance rates and are well tolerated. This interferon-free DAA (direct antiviral agent) therapy has revolutionized antiviral therapy in hepatitis C so that successful hepatitis C treatment can be offered to virtually all patients irrespective of their co morbidity. This review provides an overview over currently approved regimens and outlines their use in clinical practice. In addition potential short-comings of the current therapeutic options such as drug-drug interactions and selection of viral resistance are addressed. DAA combination therapy has the potential to obtain global control over hepatitis C. However, easy access to DAAs, availability of reliable HCV diagnostics, and affordable costs remain still important goals, which must be reached to globally eliminate hepatitis C. PMID- 29024740 TI - Antimicrobial peptides, nanotechnology, and natural metabolites as novel approaches for cancer treatment. AB - Despite the advances in tumor identification and treatment, cancer remains the primary driver of death around the world. Also, regular treatments for the disease are incapable of targeting particular cancer types at different stages since they are not specifically focused on harmful cells since they influence both solid and tumor cells, causing side effects and undesirable symptoms. Therefore, novel strategies should be developed to treat this disease. Several efforts have been made in this direction to find more effective alternatives to cancer treatment, such as the use of antimicrobial peptides (AMPs) with antitumoral activity, nanocarriers and natural compounds from a variety of sources. AMPs are more specific to their targets because of electrostatic interaction between AMPs and the cancer cells' plasma membrane. Nanocarriers may be used for the delivery of non-soluble drugs, which are poorly stable or require a controlled release. In addition, natural compounds have been a rich source of anti-cancer agents for decades. In this review, these three approaches will be discussed, showing recent advances and advantages of using these strategies to treat cancer as well as the combination of these approaches increasing anticancer activity. PMID- 29024741 TI - In vivo potency revisited - Keep the target in sight. AB - Potency is a central parameter in pharmacological and biochemical sciences, as well as in drug discovery and development endeavors. It is however typically defined in terms only of ligand to target binding affinity also in in vivo experimentation, thus in a manner analogous to in in vitro studies. As in vivo potency is in fact a conglomerate of events involving ligand, target, and target ligand complex processes, overlooking some of the fundamental differences between in vivo and in vitro may result in serious mispredictions of in vivo efficacious dose and exposure. The analysis presented in this paper compares potency measures derived from three model situations. Model A represents the closed in vitro system, defining target binding of a ligand when total target and ligand concentrations remain static and constant. Model B describes an open in vivo system with ligand input and clearance (Cl(L)), adding in parallel to the turnover (ksyn, kdeg) of the target. Model C further adds to the open in vivo system in Model B also the elimination of the target-ligand complex (ke(RL)) via a first-order process. We formulate corresponding equations of the equilibrium (steady-state) relationships between target and ligand, and complex and ligand for each of the three model systems and graphically illustrate the resulting simulations. These equilibrium relationships demonstrate the relative impact of target and target-ligand complex turnover, and are easier to interpret than the more commonly used ligand-, target- and complex concentration-time courses. A new potency expression, labeled L50, is then derived. L50 is the ligand concentration at half-maximal target and complex concentrations and is an amalgamation of target turnover, target-ligand binding and complex elimination parameters estimated from concentration-time data. L50 is then compared to the dissociation constant Kd (target-ligand binding affinity), the conventional Black & Leff potency estimate EC50, and the derived Michaelis-Menten parameter Km (target ligand binding and complex removal) across a set of literature data. It is evident from a comparison between parameters derived from in vitro vs. in vivo experiments that L50 can be either numerically greater or smaller than the Kd (or Km) parameter, primarily depending on the ratio of kdeg-to-ke(RL). Contrasting the limit values of target R and target-ligand complex RL for ligand concentrations approaching infinity demonstrates that the outcome of the three models differs to a great extent. Based on the analysis we propose that a better understanding of in vivo pharmacological potency requires simultaneous assessment of the impact of its underlying determinants in the open system setting. We propose that L50 will be a useful parameter guiding predictions of the effective concentration range, for translational purposes, and assessment of in vivo target occupancy/suppression by ligand, since it also encompasses target turnover - in turn also subject to influence by pathophysiology and drug treatment. Different compounds may have similar binding affinity for a target in vitro (same Kd), but vastly different potencies in vivo. L50 points to what parameters need to be taken into account, and particularly that closed-system (in vitro) parameters should not be first choice when ranking compounds in vivo (open system). PMID- 29024742 TI - CYP-mediated drug metabolism in the brain impacts drug response. AB - The functional role of cytochrome P450 (CYP) enzymes in the brain is an exciting and evolving field of research. CYPs are present and active in the brain, with heterogeneous patterns of expression, activity, and sensitivity to modulation across cell types, regions, and species. Despite total brain CYP expression being a fraction of hepatic CYP expression, the expanding literature of in vitro and in vivo experiments has provided evidence that brain CYPs can impact acute and chronic drug response, susceptibility to damage by neurotoxins, and are associated with altered personality, behaviour, and risk of neurological disease. They may also play a role in endogenous neurotransmitter and neurosteroid homeostasis. This review goes through the characterization of brain CYPs across species, the patterns of susceptibility of brain CYPs to exogenous induction, and recent preclinical evidence of the potential role of brain CYPs in vivo (e.g. CYP2D), along with the development of experiment paradigms that allow modulation of brain CYP activity without affecting CYP activity in the liver. Understanding brain CYP function, and changes therein, may provide unique strategies for the development of CNS-acting therapeutics metabolized locally in the brain, as well as therapeutics to target brain CYPs directly. PMID- 29024743 TI - Stenting as a bridge to resection versus emergency surgery for left-sided colorectal cancer with malignant obstruction: A systematic review and meta analysis. AB - PURPOSE: This study aims to discuss the safety and feasibility of a combined treatment consisting of stent insertion and elective surgery for left-sided colorectal cancer with malignant obstruction. METHODS: Randomized clinical trials (RCTs) that discussed the safety and feasibility of stenting as a bridge to surgery in malignant colorectal cancer were identified in a search of medical databases, including PubMed, Embase, Cochrane Library, and SCIENCE. Each paper's quality was assessed using the Jadad scale. A meta-analysis was conducted using RevMan 5.3, and statistical heterogeneity between RCTs was defined as I2>50%. RESULTS: Nine RCTs included 594 patients were selected and analyzed. Of the included patients, 281 underwent stent insertion followed by elective surgery (SG group), and 313 underwent emergency surgery (EG group). The meta-analysis revealed that the patients in the SG group had a higher one-stage anastomosis rate. Patients in the SG had lower mortality rates and minor complications. There was no significant difference in anastomotic leakage between the two groups. The funnel plot showed that there was no publication bias in these outcomes. CONCLUSION: Stenting as a bridge to surgery was safe and feasible in left-sided colorectal cancer with malignant obstruction. Compared with the patients in the EG group, the SG patients had an improved primary anastomosis rate and experienced no increase in the risk of other complications. PMID- 29024744 TI - A 2.833-kb Insertion in BnFLC.A2 and Its Homeologous Exchange with BnFLC.C2 during Breeding Selection Generated Early-Flowering Rapeseed. PMID- 29024745 TI - Correlation between extension-block K-wire insertion angle and postoperative extension loss in mallet finger fracture. AB - INTRODUCTION: Extension-block pinning represents a simple and reliable surgical technique. Although this procedure is commonly performed successfully, some patients develop postoperative extension loss. To date, the relationship between extension-block Kirschner wire (K-wire) insertion angle and postoperative extension loss in mallet finger fracture remains unclear. HYPOTHESIS: We aimed to clarify this relationship and further evaluate how various operative and non operative factors affect postoperative extension loss after extension-block pinning for mallet finger fracture. MATERIALS AND METHOD: A retrospective study was conducted to investigate a relationship between extension block K-wire insertion angle and postoperative extension loss. The inclusion criteria were: (1) a dorsal intra-articular fracture fragment involving 30% of the base of the distal phalanx with or without volar subluxation of the distal phalanx; and (2) <3 weeks delay from the injury without treatment. Extension-block K-wire insertion angle and fixation angle of the distal interphalangeal (DIP) joint were assessed using lateral radiograph at immediate postoperative time. Postoperative extension loss was assessed by using lateral radiograph at latest follow-up. Extension-block K-wire insertion angle was defined as the acute angle between extension block K-wire and longitudinal axis of middle phalangeal head. DIP joint fixation angle was defined as the acute angle between the distal phalanx and middle phalanx longitudinal axes. RESULTS: Seventy-five patients were included. The correlation analysis revealed that extension-block K-wire insertion angle had a negative correlation with postoperative extension loss, whereas fracture size and time to operation had a positive correlation (correlation coefficient for extension block K-wire angle: -0.66, facture size: +0.67, time to operation: +0.60). When stratifying patients in terms of negative and positive fixation angle of the DIP joint, the independent t-test showed that mean postoperative extension loss is -3.67 degrees and +4.54 degrees (DIP joint fixation angles of <0 degrees and >=0 degrees , respectively, P=0.024). When stratifying patients in terms of extension-block K-wire insertion angle (30 degrees , 30 degrees -40 degrees , >40 degrees ), ANOVA showed significantly less postoperative extension loss for higher insertion angles (>40 degrees ) than for medium insertion angles (30 degrees -40 degrees ). Mean postoperative extension loss difference between higher insertion angle (>40 degrees ) and medium insertion angle (30 degrees -40 degrees ) was 11 degrees (P=0.002). DISCUSSION: Using an insertion angle of the extension-block K-wire of 40 degrees -45 degrees and a slightly hyperextended position of the DIP joint may help reducing postoperative extension loss. LEVEL OF EVIDENCE: Therapeutic level III. PMID- 29024746 TI - Dynamics of DNA unwinding by helicases with frequent backward steps. AB - XPD (Xeroderma pigmentosum complementation group D) is a prototypical 5' - 3' translocating DNA helicase that exhibits frequent backward steps during DNA unwinding. Here, we propose a model of DNA unwinding by XPD. With the model we explain why XPD exhibits frequent backsteps while other helicases show rare backsteps. We explain quantitatively the single-molecule data on probability of 1-bp step and mean dwell time of one step versus ATP concentration for XPD at fixed large external force applied to the ends of the DNA hairpin to unzip the hairpin. We study DNA unwinding velocity, probability of -1-bp step and mean dwell time of one step for XPD versus external force at various ATP concentrations. We compare DNA unwinding dynamics of the 5' - 3' helicase XPD with that of 3' - 5' helicase RecQ. Our results show that the DNA unwinding velocity of XPD is sensitively dependent on the external force, which is contrast to RecQ that shows insensitive dependence of DNA unwinding velocity on the external force, explaining the experimental data showing that RecQ is an "optimally active" helicase while XPD is a "partially active" helicase. The DNA unwinding dynamics of different helicases under the external force is also studied. PMID- 29024747 TI - Diletter circular codes over finite alphabets. AB - The graph approach of circular codes recently developed (Fimmel et al., 2016) allows here a detailed study of diletter circular codes over finite alphabets. A new class of circular codes is identified, strong comma-free codes. New theorems are proved with the diletter circular codes of maximal length in relation to (i) a characterisation of their graphs as acyclic tournaments; (ii) their explicit description; and (iii) the non-existence of other maximal diletter circular codes. The maximal lengths of paths in the graphs of the comma-free and strong comma-free codes are determined. Furthermore, for the first time, diletter circular codes are enumerated over finite alphabets. Biological consequences of dinucleotide circular codes are analysed with respect to their embedding in the trinucleotide circular code X identified in genes and to the periodicity modulo 2 observed in introns. An evolutionary hypothesis of circular codes is also proposed according to their combinatorial properties. PMID- 29024748 TI - Effect of circulating tumor cell aggregate configuration on hemodynamic transport and wall contact. AB - Selectin-mediated adhesion of circulating tumor cells (CTCs) to the endothelium is a critical step in cancer metastasis, a major factor contributing to the mortality of cancer. The formation of tethers between tumor cells and endothelial selectins initiates cell rolling, which can lead to firm adhesion, extravasation and the formation of secondary metastases. Tumor cells travel through the bloodstream as single cells, or as aggregates known as circulating tumor microemboli (CTM). CTM have increased survivability and metastatic potential relative to CTCs, and the presence of CTM is associated with worse patient prognosis. The motion of cells and cellular aggregates in flow is a function of their size and shape, and these differences influence the frequency and strength of their contact with the endothelium. In this study, a computational model consisting of the hydrodynamic component of the Multiparticle Adhesive Dynamics simulation analyzed the effects of model aggregate conformation and orientation on adhesive binding potential. Model aggregates of the Colo205 colorectal cancer cell line were created, consisting of two, three, and four cells in simple geometrical conformations. Contact time, contact area, and time integral of contact area were measured as a function of fluid shear rate, initial centroid height, and initial orientation for model aggregates that experienced hydrodynamic collisions with the plane wall. It was found that larger CTM conformations with intermediate nonsphericities had the highest adhesion potential. The results of this study shed light on the correlation between environmental conditions and extravasation efficiency, which could inform the development of new anti-metastatic drugs. PMID- 29024749 TI - A computational approach to extinction events in chemical reaction networks with discrete state spaces. AB - Recent work of Johnston et al. has produced sufficient conditions on the structure of a chemical reaction network which guarantee that the corresponding discrete state space system exhibits an extinction event. The conditions consist of a series of systems of equalities and inequalities on the edges of a modified reaction network called a domination-expanded reaction network. In this paper, we present a computational implementation of these conditions written in Python and apply the program on examples drawn from the biochemical literature. We also run the program on 458 models from the European Bioinformatics Institute's BioModels Database and report our results. PMID- 29024750 TI - Mandibular lymphoma. AB - INTRODUCTION: B-cell lymphoblastic lymphoma (B-LBL) rarely occurs in the oral cavity (3.5% of all intra-oral malignant tumors). Few cases of B-LBL mandibular bone involvement have been reported. OBSERVATION: We report the case of a 30-year old female patient presenting with a single swelling of the left mandibular region, having grown for several weeks. Maxillo-facial CT and MRI showed inflammation of soft tissues and muscles without initial signs of osteitis, thus noncontributive to the diagnosis. A biopsy allowed diagnosing an intra-oral bone lymphoblastic lymphoma. The patient was referred to the hematooncology unit for treatment. DISCUSSION: Jaw localization of non Hodgkin's lymphoma is rare. Clinical symptomatology and radiological signs are poorly contributive. The diagnosis relies on a histopathological analysis. PMID- 29024751 TI - Phylogenomics reveals habitat-associated body shape divergence in Oryzias woworae species group (Teleostei: Adrianichthyidae). AB - The Oryzias woworae species group, composed of O. asinua, O. wolasi, and O. woworae, is widely distributed in southeastern Sulawesi, an island in the Indo Australian Archipelago. Deep-elongated body shape divergence is evident among these three species to the extent that it is used as a species-diagnostic character. These fishes inhabit a variety of habitats, ranging from upper streams to ponds, suggesting that the body shape divergence among the three species may reflect adaptation to local environments. First, our geometric morphometrics among eight local populations of this species group revealed that the three species cannot be separated by body shape and that riverine populations had more elongated bodies and longer caudal parts than lacustrine populations. Second, their phylogenetic relationships did not support the presence of three species; phylogenies using mitochondrial DNA and genomic data obtained from RNA-Seq revealed that the eight populations could not be sorted into three different clades representing three described species. Third, phylogenetic corrections of body shape variations and ancestral state reconstruction of body shapes demonstrated that body shape divergence between riverine and lacustrine populations persisted even if the phylogenies were considered and that body shape evolved rapidly irrespective of phylogeny. Sexual dimorphism in body shape was also evident, but the degree of dimorphism did not significantly differ between riverine and lacustrine populations after phylogenetic corrections, suggesting that sexual selection may not substantially contribute to geographical variations in body shape. Overall, these results indicate that the deep-elongated body shape divergence of the O. woworae species group evolved locally in response to habitat environments, such as water currents, and that a thorough taxonomic reexamination of the O. woworae species group may be necessary. PMID- 29024752 TI - Overtraining modifies spatial memory susceptibility to corticosterone administration. AB - Even though the effects of overtraining and glucocorticoids on different phases of spatial memory are known, the interaction between these factors on the retrieval and extinction of spatial memory has not yet been described. Adult male Wistar rats received eight training trials per day in the Barnes maze for either one or two days. Twenty-four hours after the last training trial they were randomly assigned for receiving an intraperitoneal vehicle or corticosterone injection (0.125 or 0.5 mg/kg) and ten minutes later they were given a memory test, followed by seven extinction trials. Extinction retention was evaluated twenty-four hours after extinction. The second training session did not provoke significant changes regarding escape latency nor weighted errors, thereby showing that overtraining had been obtained. The overtrained animals performed better than the trained ones during the retrieval test. Corticosterone administration did not affect the overtrained animals' performance; by contrast, only the lower dose impaired trained animals' retrieval. Overtrained subjects acquired extinction more rapidly than those which received just one session, but corticosterone did not significantly modify extinction. However, whilst the spatial task remained extinguished in trained animals during the extinction retrieval test, spontaneous recovery occurred in overtrained animals. Such training intensity effects on extinction retrieval were reverted by corticosterone. Overall, these results suggested that overtraining modified the susceptibility of spatial memory's trace to the effects of corticosterone on retrieval and extinction. PMID- 29024753 TI - Spread of multidrug-resistant high-risk Klebsiella pneumoniae clones in a tertiary hospital from southern Brazil. AB - Klebsiella pneumoniae is among the most important pathogens found in hospitals. The emergence of multiple antibiotic resistant K. pneumoniae associated with its virulence factors is a worldwide concern and its early identification is crucial, especially for controlling the spread of emerging clones. This article reports a high prevalence of multiresistant K. pneumoniae in a university hospital in southern Brazil, harboring several virulence and beta-lactamase encoding genes, including pandrug-resistant high-risk international clones belonging to the clonal group 258 (ST11, ST15, ST101, ST258, ST340 and ST874). PMID- 29024754 TI - Comparison of genetic characteristics of canine papillomaviruses in Turkey. AB - Papillomavirus (PV) infections often cause benign and malignant skin neoplasia in dogs. To date, twenty types of canine papillomaviruses (CPVs) have been described worldwide. A detailed molecular characterization of CPVs in Turkey is lacking. In the present study, oral and mucosal lesions from 13 dogs with suspected CPV infection from the Mediterranean and central Anatolian regions of Turkey were analyzed. The partial gene sequences of the L1, E6, and E7 regions were compared with those of CPV types in the GenBank database. The results showed that CPV-1 infection was the dominant type of canine papillomatosis in Turkey. In addition, there was no statistically significant association between the frequency of the disease and the age or gender of the dog (p>0.05). However, all the dogs were pedigree breeds, suggesting that the disease may be more prevalent among pure bred dogs than mixed breeds. PMID- 29024755 TI - Performance of Pediatric Rehabilitation Medicine Candidates on the Subspecialty Board Certification Examination from 2003 to 2015. AB - BACKGROUND: Pediatric rehabilitation medicine (PRM) physicians enter the field via several pathways. It is unknown whether different training pathways impact performance on the American Board of Physical Medicine and Rehabilitation (ABPMR) PRM Examination and Maintenance of Certification (MOC) Examination. OBJECTIVES: To describe the examination performance of candidates on the ABPMR PRM Examination according to their type of training (physiatrists with a clinical PRM focus, accredited or unaccredited fellowship training, separate pediatric and physical medicine and rehabilitation residencies, or combined pediatrics/physical medicine and rehabilitation residencies) and to compare candidates' performance on the PRM Examination with their initial ABPMR certification and MOC Examinations. DESIGN: A retrospective cohort study. SETTING: American Board of Physical Medicine and Rehabilitation office. PARTICIPANTS: A total of 250 candidates taking the PRM subspecialty certification examination from 2003 to 2015. METHODS: Scaled scores on the PRM Examination were compared to the examinees' initial certification scores as well as their admissibility criteria. Pass rates and scaled scores also were compared for those taking their initial PRM certification versus MOC. MAIN OUTCOME MEASUREMENTS: Board pass rates and mean scaled scores for initial PRM Examination and MOC. RESULTS: The 250 physiatrists who took the subspecialty PRM Examination had an overall first-time pass rate of 89%. There was no significant difference between first-time PRM pass rates or mean scaled scores for individuals who completed an Accreditation Council for Graduate Medical Education-accredited fellowship versus those who did not. First time PRM pass rates were greatest among those who were also certified by the American Board of Pediatrics (100%). Performance on Parts I and II of the initial ABPMR Certification Examination significantly predicted PRM Examination scores. There was no difference in mean scaled scores for initial PRM certification versus taking the PRM Examination for MOC. CONCLUSIONS: Several pathways to admissibility to the PRM Examination afforded similar opportunity for diplomates to gain the knowledge necessary to pass the PRM Examination. Once certified, physicians taking the PRM Examination for MOC have a high success rate of passing again in years 7-10 of their certification cycle. LEVEL OF EVIDENCE: III. PMID- 29024756 TI - Treatment Strategies and Prognostic Factors of Limited-Stage Primary Small Cell Carcinoma of the Esophagus. AB - INTRODUCTION: Primary small cell carcinoma of the esophagus (PSCCE) is characterized by high malignancy, early metastasis, and poor prognosis. This retrospective study aimed to review the clinical characteristics of patients with limited-stage PSCCE and determine the relevant prognostic factors and optimal treatment strategies. METHODS: We retrospectively evaluated 152 consecutive patients with limited-stage PSCCE between January 2007 and December 2015. Prognostic factors were analyzed using univariate analysis and a Cox regression model. Subgroup analysis was applied to evaluate the effect of treatment strategy on survival. RESULTS: Univariate and multivariate analyses showed that treatment modality (p = 0.034) and N stage (p = 0.002) were independent prognostic factors. Patients with stage I or IIA PSCCE who underwent an operation alone exhibited better survival than those who did not undergo an operation (median survival time 29 versus 17.4 months [p = 0.031]), and postoperative adjuvant therapy did not increase overall survival or disease-free survival (p > 0.05). The overall survival rate of patients with stage III PSCCE who underwent neoadjuvant chemotherapy (nCT) was significantly better than that of patients who underwent an operation alone or did not undergo an operation (p = 0.021 and p = 0.026, respectively); additionally, nCT could increase disease-free survival (p = 0.031). CONCLUSIONS: Treatment modalities and N stage are independent prognostic factors. Radical esophagectomy should be considered as the primary treatment for stage I or IIA PSCCE, and nCT followed by esophagectomy could be an effective treatment option for stage III PSCCE. Multicenter randomized studies are required to confirm the role of nCT in the management of limited-stage PSCCE. PMID- 29024757 TI - A meta-analysis on the correlation between admission hyperglycemia and myocardial infarct size on CMRI. AB - AIMS: The aim was to compare the size of the myocardial infarct detected on cardiovascular magnetic resonance imaging (CMR) between patients with and without admission hyperglycemia after acute myocardial infarction (AMI). METHODS: Studies were identified by searching on MEDLINE, EMBASE, and CINAHL databases. A systematic review was conducted by two independent reviewers. Microvascular obstruction (MVO) and late gadolinium enhancement (LGE) were pooled from available studies to calculate the standardized mean difference (SMD) in post-MI infarct size between patients with and without hyperglycemia at admission. RESULTS: The systematic review yielded 5 studies with MCR data for patients with and without admission hyperglycemia. The total number of patients included in this study was 911. A statistically significant difference was detected in MVO between patients with and without admission hyperglycemia (SMD = 0.79, 95% CI: 0.11, 1.47, P < 0.00001). The difference in LGE between patients with and without admission hyperglycemia was also significant (SMD = 0.57, 95% CI: -0.04, 1.18, P < 0.00001). CONCLUSION: The main finding of our analyses is that the size of myocardial infarct detected on CMR is positively correlated to admission hyperglycemia in patients with AMI. The clinical importance of this study lies in the accurate assessment of prognostic value of admission glucose, which would help clinicians in risk stratification and treatment decision-making. PMID- 29024759 TI - Specificity of plant membrane trafficking - ARFs, regulators and coat proteins. AB - Approximately one-third of all eukaryotic proteins are delivered to their destination by trafficking within the endomembrane system. Such cargo proteins are incorporated into forming membrane vesicles on donor compartments and delivered to acceptor compartments by vesicle fusion. How cargo proteins are sorted into forming vesicles is still largely unknown. Here we review the roles of small GTPases of the ARF/SAR1 family, their regulators designated ARF guanine nucleotide exchange factors (ARF-GEFs) and ARF GTPase-activating proteins (ARF GAPs) as well as coat protein complexes during membrane vesicle formation. Although conserved across eukaryotes, these four functional groups of proteins display plant-specific modifications in composition, structure and function. PMID- 29024758 TI - PCR-ribotype distribution of Clostridium difficile in Irish pigs. AB - Clostridium difficile is an important enteric pathogen in humans causing infections in the healthcare environment and the community. Carriage of C. difficile and C. difficile-related enterocolitis has been reported in piglets worldwide. The aim of this study was to investigate the rates of C. difficile isolation from pigs in Ireland. Faecal samples from piglet litters and sows were collected from six farms in 2015. The sows were non-diarrhoeal at the time of sampling. The diarrhoeal status of the piglets was unknown. C. difficile was isolated from 34/44 (77%) of piglet litter samples and from 33/156 (21%) of sow samples. The isolation rate in sows varied from 3 to 39% and in piglet litters from 72 to 86% depending on farm location. Toxin A and toxin B were present in 99% (66/67) of isolates; and binary toxin in 85% (57/67). Only PCR-ribotypes 078 (88%) and 193 (12%) were identified in piglets. Seven PCR-ribotypes were detected in sow C. difficile isolates: PCR-ribotypes 078 (67%), 050 (12%), 014/020 (6%), 015 (6%), 029 (3%), 035 (3%) and 193 (3%). This study shows that toxigenic C. difficile strains such as PCR-ribotype 078 can be commonly isolated from pigs at different geographical locations in Ireland. Since PCR-ribotype 078 is frequently found in humans in Ireland, this highlights the potential for interspecies transmission. PMID- 29024760 TI - RNA processing in the male germline: Mechanisms and implications for fertility. AB - Mammalian spermatogenesis is a tightly coordinated process that gives rise to mature spermatozoa capable of fertilising an ovum during sexual reproduction. A population of stem and progenitor cells known as undifferentiated spermatogonia enables continual spermatogenesis throughout life. A complex transcriptional network that balances self-renewal of spermatogonia with their timely differentiation in order to maintain constant fertility regulates this process. Importantly, post-transcriptional regulation of gene expression plays a critical role in spermatogenesis, necessitated by the profound genetic and morphological changes that occur during meiosis and sperm maturation. Pre-mRNA splicing, mRNA export, maintenance of transcript stability and translation are key RNA processing steps that are regulated in the male germline to maintain coordinated gene expression. In this review, we examine these processes in the context of mammalian spermatogenesis and provide an overview of key mediators at each step. PMID- 29024761 TI - Pattern of Closure of Skull Base Synchondroses in Crouzon Syndrome. AB - BACKGROUND: The age of closure of skull base synchondroses has never been analyzed in a homogenous population of children with Crouzon syndrome. METHODS: A retrospective case-control study was performed on 30 Crouzon children (17 male, 13 female) aged 1 month to 12.48 years with Fibroblast Growth Factor Receptor type 2 mutation. Eleven synchondroses were analyzed on millimetric computed tomodensitometric slices before surgery. Syndromic patients were compared with a series of 235 healthy children previously published. RESULTS: Synchondrosis closure follows a global pattern that occurs earlier in Crouzon syndrome than in controls (P <= 0.002). Synchondrosis fusion starts at 10 months of age with posterior intraoccipital synchondroses and lambdoid sutures, followed by occipitomastoid synchondroses between 1.85 (right) and 2.27 years (left) and anterior intraoccipital synchondroses at approximately 2.80 years. Time to complete fusion varies considerably according to the synchondroses. Spheno occipital and petro-occipital synchondroses fuse last, at approximately 3 years old. CONCLUSIONS: In children with Crouzon syndrome, synchondrosis closure occurs prematurely, with a time course specific to each synchondrosis. PMID- 29024762 TI - A paired comparison study on refractive changes after strabismus surgery. AB - PURPOSE: To quantify refractive changes following horizontal lateral rectus recession and medial rectus resection surgery and to investigate the causes of these changes. METHODS: The medical records of patients who underwent unilateral horizontal lateral rectus recession and medial rectus resection for exotropia by a single surgeon over a period of 14 years were reviewed retrospectively. Using vector analysis, refractive changes in operated eyes (cases) were compared to changes in the sound eyes (controls). The main outcome measures were differences in mean change of refractive parameters and the proportion of clinically significant changes. RESULTS: A total of 31 subjects (median age, 13.6 years; interquartile range, 8.8-19.8 years) were included. A significantly higher magnitude of refractive changes was observed in the operated eyes (P = 0.001). In addition, the proportion of cases with clinically significant change in sphere or cylinder was significantly higher in the operated eyes compared to the sound eyes (48% vs 10% [OR = 2.31, P = 0.002] and 32% vs 10% [OR = 5.0, P = 0.039], resp.). CONCLUSIONS: Horizontal strabismus surgery is associated with refractive changes that might be of clinical significance. Pediatric ophthalmologists should consider re-refraction 1 month postoperatively. PMID- 29024764 TI - "It's Pretty Hard to Tell Your Mom and Dad That You're on a Method": Exploring How an App Could Promote Adolescents' Communication with Partners and Parent(s) to Increase Self-Efficacy in Long-Acting Reversible Contraception Use. AB - STUDY OBJECTIVE: Youth-friendly information and support are integral components to promote adolescents' successful use of long-acting reversible contraception (LARC), and smartphone apps offer a promising medium. To inform content development for an app guided by the Health Belief Model, we conducted interviews with adolescent LARC users to assess self-efficacy and experiences with LARC, their communication with partners and parent(s) about LARC, and how apps could support this communication. DESIGN, SETTING, AND PARTICIPANTS: We conducted semistructured, in-depth interviews with 30 female adolescent LARC users enrolled in urban school-based health centers. INTERVENTIONS AND MAIN OUTCOME MEASURES: Descriptive analyses were used to assess demographic characteristics, experience and comfort communicating with current and future partners and parent(s) about LARC, self-efficacy around LARC, and how app elements could support LARC use. RESULTS: Participants (mean age, 16 years; range, 14-19 years) were predominately Hispanic (77%; n = 23) and black (20%; n = 6). Almost all (97%; n = 29) had told their current partner about their LARC, but of these, only 15 (50%) would feel comfortable talking with a new sexual partner. Most participants (73%; n = 22) had not told their parent(s) about getting a LARC, but many reported they were likely to share app information with their parent(s). Of the few participants who did tell their parent(s), 38% (n = 3) reported that it was difficult to do so. Adolescents described ways in which app use could help initiate conversations with new partners and parent(s). CONCLUSION: These findings suggest the potential of a theory-based smartphone app to meet adolescent LARC users' information and support needs. The app should include information on strategies for communicating with future partners and parent(s). PMID- 29024763 TI - Slow reading in children with anisometropic amblyopia is associated with fixation instability and increased saccades. AB - BACKGROUND: Previous studies show slow reading in strabismic amblyopia. We recently identified amblyopia, not strabismus, as the key factor in slow reading in children. No studies have focused on reading in amblyopic children without strabismus. We examined reading in anisometropic children and evaluated whether slow reading was associated with ocular motor dysfunction in children with amblyopia. METHODS: Anisometropic children (7-12 years) with or without amblyopia were compared to age-similar normal controls. Children silently read a grade appropriate paragraph during binocular viewing. Reading rate (words/min), number of forward and regressive saccades (per 100 words) and fixation duration were recorded with the ReadAlyzer. Binocular fixation instability was also evaluated (EyeLink 1000). RESULTS: Amblyopic anisometropic children read more slowly (n = 25; mean with standard deviation, 149 +/- 42 words/min) than nonamblyopic anisometropic children (n = 15; 196 +/- 80 words/min; P = 0.024) and controls (n = 25; 191 +/- 65 words/min; P = 0.020). Nonamblyopic anisometropic children read at a comparable rate to controls (P = 0.81). Slow reading in amblyopic anisometropic children was correlated with increased forward saccades (r = -0.84, P < 0.001), increased regressive saccades (r = -0.85, P < 0.001), and fellow eye instability during binocular viewing (r = -0.52, P = 0.019). CONCLUSIONS: Slow reading in school-age children with anisometropic amblyopia is related to increased frequency of saccades and fixation instability of the fellow eye. Further research should consider the effects of slower reading on academic performance. PMID- 29024765 TI - Identification of 2'-deoxy-2'-fluorocytidine as a potent inhibitor of Crimean Congo hemorrhagic fever virus replication using a recombinant fluorescent reporter virus. AB - Crimean-Congo hemorrhagic fever virus (CCHFV), a tick-borne orthonairovirus, causes a severe hemorrhagic disease in humans (Crimean-Congo hemorrhagic fever, CCHF). Currently, no vaccines are approved to prevent CCHF; treatment is limited to supportive care and the use of ribavirin, the therapeutic benefits of which remain unclear. CCHF is part of WHO's priority list of infectious diseases warranting further research and development. To aid in the identification of new antiviral compounds, we generated a recombinant CCHFV expressing a reporter protein, allowing us to quantify virus inhibition by measuring the reduction in fluorescence in infected cells treated with candidate compounds. The screening assay was readily adaptable to high-throughput screening (HTS) of compounds using Huh7 cells, with a signal-to-noise ratio of 50:1, and Z'-factors > 0.6 in both 96 and 384-well formats. A screen of candidate nucleoside analog compounds identified 2'-deoxy-2'-fluorocytidine (EC50 = 61 +/- 18 nM) as having 200 * the potency of ribavirin (EC50 = 12.5 +/- 2.6 MUM), as well as 17 * the potency of T 705 (favipiravir), another compound with reported anti-CCHFV activity (EC50 = 1.03 +/- 0.16 MUM). Furthermore, we also determined that 2'-deoxy-2' fluorocytidine acts synergistically with T-705 to inhibit CCHFV replication without causing cytotoxicity. The incorporation of this reporter virus into the high-throughput screening assay described here will allow more rapid identification of effective therapeutic options to combat this emerging human pathogen. PMID- 29024767 TI - Modulation of proteolytic polyprotein processing by coxsackievirus mutants resistant to inhibitors targeting phosphatidylinositol-4-kinase IIIbeta or oxysterol binding protein. AB - Enteroviruses (e.g. poliovirus, coxsackievirus, and rhinovirus) require several host factors for genome replication. Among these host factors are phosphatidylinositol-4-kinase IIIbeta (PI4KB) and oxysterol binding protein (OSBP). Enterovirus mutants resistant to inhibitors of PI4KB and OSBP were previously isolated, which demonstrated a role of single substitutions in the non structural 3A protein in conferring resistance. Besides the 3A substitutions (i.e., 3A-I54F and 3A-H57Y) in coxsackievirus B3 (CVB3), substitution N2D in 2C was identified in each of the PI4KB-inhibitor resistant CVB3 pools, but its possible benefit has not been investigated yet. In this study, we set out to investigate the possible role of 2C-N2D in the resistance to PI4KB and OSBP inhibition. We show that 2C-N2D by itself did not confer any resistance to inhibitors of PI4KB and OSBP. However, the double mutant (i.e., 2C-N2D/3A-H57Y) showed better replication than the 3A-H57Y single mutant in the presence of inhibitors. Growing evidence suggests that alterations in lipid homeostasis affect the proteolytic processing of the poliovirus polyprotein. Therefore, we studied the effect of PI4KB or OSBP inhibition on proteolytic processing of the CVB3 polyprotein during infection as well as in a replication-independent system. We show that both PI4KB and OSBP inhibitors specifically affected the cleavage at the 3A-3B junction, and that mutation 3A-H57Y recovered impaired proteolytic processing at this junction. Although 2C-N2D enhanced replication of the 3A-H57Y single mutant, we did not detect additional effects of this substitution on polyprotein processing, which leaves the mechanism of how 2C-N2D contributes to the resistance to be revealed. PMID- 29024766 TI - Protective effect of an alpha 7 nicotinic acetylcholine receptor agonist against enterovirus 71 infection in neuronal cells. AB - Enterovirus 71, as one of the dominant pathogens associated with severe hand, foot, and mouth disease, has been well reported to trigger severe neurological symptoms among young children over the last decade, particularly among children in the Asia-Pacific region. To date, no effective antiviral agent has been developed for the treatment of severe enterovirus 71 infection. PNU-282987, a selective alpha 7 nicotinic acetylcholine receptor (alpha7nAChR) agonist, has been reported to have a neuroprotective effect by participating in inflammatory regulation in previous studies. Therefore, in the present study, we aimed to assess the cell-protective effect of PNU-282987 against enterovirus 71 infection in neuronal cells, and to discuss potential mechanisms underlying this cell protective effect in order to elucidate the potential impact of such agonists in the treatment of neurotropic viral infection. We observed that treatment with PNU 282987 improved cell viability and inhibited viral replication in enterovirus 71 infected SH-SY5Y cells. Further investigation revealed that inhibition of enterovirus 71 production by PNU-282987 is likely associated with events of RNA replication, and that increased levels of INF mRNA and its downstream antiviral proteins stimulated by the JAK-STAT2 pathway may contribute to the antiviral effect of PNU-282987. Moreover, our findings suggest that both the antiviral and anti-inflammatory effects of PNU-282987 may contribute to the neural protective effect of the drug in enterovirus 71-infected cells. Taken together, the results suggest that selective alpha7nAChR agonists may represent viable candidates for future therapeutic treatment of severe enterovirus 71 infection, and for other cases of neurotropic viral infection. PMID- 29024768 TI - WITHDRAWN: Brucellosis as Unusual Cause for RUQ Pain with Elevated Liver Chemistry in the United States. 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- 29024769 TI - Identification of a single p19 gene and three p40 paralogues in grass carp (Ctenopharyngodon idellus): Their potential for the formation of interleukin 23 and inducible expression in vitro and in vivo. AB - Interleukin (IL-) 23, a member of IL-12 family, is a composite cytokine with the subunits of p19 and p40. Although IL-12 and IL-23 share the p40 subunit, they play vastly different roles in immune regulation. In teleost, much emphasis has been placed on the identification of IL-12, but evidence for the existence of IL 23 is still lacking. In the present study, a p19 gene and three p40 paralogues were isolated and identified from grass carp, suggesting multiple assembly of IL 23 molecules in fish species. To address this issue, the existence of different p19/p40 heterodimers were examined by Co-Immunoprecipitation (Co-IP) assay, showing that only co-expression of p19 and each p40 subunit could produce the soluble proteins corresponding to three IL-23 isoforms. Additionally, bacterial infection could up-regulate the mRNA expression of p19, p40a and p40b but not p40c in head kidney, indicating distinct expression patterns of three p40 paralogues. Moreover, in vitro experiments demonstrated that both B-cell stimulator, LPS and T-cell mitogen, PHA markedly increased the mRNA levels of p19 and three p40 paralogues in grass carp periphery blood lymphocytes (PBLs). The simultaneous up-regulation of mRNA expression of p19 and p40 paralogues in response to immune stimuli supports the idea that p19 may form heterodimeric molecules with three p40 subunits in grass carp under immune activation. These findings for the first time highlight the potential of p19 and p40 for dimerization in fish, particularly the existence of three IL-23 isoforms as soluble heterodimeric cytokines in grass carp, thereby providing the basis for further investigating the function of IL-23 in fish immunity. PMID- 29024770 TI - Biochemical, biological and molecular characterization of an L-Amino acid oxidase (LAAO) purified from Bothrops pictus Peruvian snake venom. AB - An L-amino acid oxidase from Peruvian Bothrops pictus (Bpic-LAAO) snake venom was purified using a combination of size-exclusion and ion-exchange chromatography. Bpic-LAAO is a homodimeric glycosylated flavoprotein with molecular mass of ~65 kDa under reducing conditions and ~132 kDa in its native form as analyzed by SDS PAGE and gel filtration chromatography, respectively. N-terminal amino acid sequencing showed highly conserved residues in a glutamine-rich motif related to binding substrate. The enzyme exhibited optimal activity towards L-Leu at pH 8.5, and like other reported SV-LAAOs, it is stable until 55 degrees C. Kinetic studies showed that the cations Ca2+, Mg2+ and Mn2+ did not alter Bpic-LAAO activity; however, Zn2+ is an inhibitor. Some reagents such as beta mercaptoethanol, glutathione and iodoacetate had inhibitory effect on Bpic-LAAO activity, but PMSF, EDTA and glutamic acid did not affect its activity. Regarding the biological activities of Bpic-LAAO, this enzyme induced edema in mice (MED = 7.8 MUg), and inhibited human platelet aggregation induced by ADP in a dose dependent manner and showed antibacterial activity on Gram (+) and Gram (-) bacteria. Bpic-LAAO cDNA of 1494 bp codified a mature protein with 487 amino acid residues comprising a signal peptide of 11 amino acids. Finally, the phylogenetic tree obtained with other sequences of LAAOs, evidenced its similarity to other homologous enzymes, showing two well-established monophyletic groups in Viperidae and Elapidae families. Bpic-LAAO is evolutively close related to LAAOs from B. jararacussu, B. moojeni and B. atrox, and together with the LAAO from B. pauloensis, form a well-defined cluster of the Bothrops genus. PMID- 29024771 TI - Development of dot-ELISA for the detection of venoms of major Indian venomous snakes. AB - India remained an epicenter for the snakebite-related mortality and morbidities due to widespread agricultural activities across the country and a considerable number of snakebites offended by Indian cobra (Naja naja), common krait (Bungarus caeruleus), Russell's viper (Daboia russelii), and saw-scaled viper (Echis carinatus). Presently, there is no selective test available for the detection of snake envenomation in India before the administration of snake antivenin. Therefore, the present study aimed to develop rapid, sensitive assay for the management of snakebite, which can detect venom, responsible snake species and serve as a tool for the reasonable administration of snake antivenin, which have scarcity across the world. The selective envenomation detection assay needs venom specific antibodies (VSAbs) for that monovalent antisera was prepared by hyperimmunization of rabbits with specific venom. However, obtained antibodies exhibit maximum activity towards homologous venom as well as quantifiable degree of cross-reactivity with heterologous venoms. Use of these antibodies for development of selective envenomation detection assay may create ambiguity in results, therefore needs to isolate VSAbs from monovalent antisera. The cross reacting antibodies were specifically removed by immunoaffinity chromatography to obtain VSAbs. For the development of venom detection ELISA test (VDET), two different species of antibodies were used that offers enhanced sensitivity along with selective identification of the venoms of the responsible snakes. In conclusion, the developed VDET is rapid, specific, yet sensitive to detect venoms of offending snake species, and its venom concentration down to 1.0 ng/ml. However, the device observed with lowest venom concentration detection ability in the range <1.0 ng/ml from experimentally envenomated samples. The implementation of VDET will help in avoiding unnecessary usage and adverse reactions of snake antivenin. The test has all the merits to become a choice of method in envenomation diagnosis from medically important snakes of India. PMID- 29024772 TI - Microcystin-LR leads to oxidative damage and alterations in antioxidant defense system in liver and gills of Brycon amazonicus (SPIX & AGASSIZ, 1829). AB - Microcystin's (MCs) are toxins produced by several groups of cyanobacteria, in water bodies throughout the world, in a process which is being intensified by human action. Among the variants of MCs, MC-LR stands out for its distribution and toxicity. MCs are potent inhibitors of protein phosphatases 1 and 2 A, which causes disruption of the cytoskeleton and consequent cell death. They can also alter the antioxidant system and induce oxidative stress in various organs of many species. There is, however, a lack of information about the effects of MCs on the antioxidant system and oxidative damage in Brazilian fishes. This study evaluated the effect of microcystin-LR on the antioxidant system in liver and gills of the Brazilian fish Brycon amazonicus, after 48 h of i.p injection of 100 MUg MC-LR.kg-1 body mass. The liver exhibited increases in the activity of GST (74%) and GPx (217%), and a 47% decrease in SOD activity, with no changes in CAT values. In the gills of fish exposed to MC-LR, CAT and GPx activities did not show significant changes, while SOD and GST activity decreased by 66% and 37%, respectively. The GSH content did not change significantly in the liver, however, a decrease of 43% was observed in the gills. Oxidative damage measured by protein oxidation (PC) and lipoperoxidation (LPO) showed significant effects in both tissues. In hepatic tissue, there was no change in PC levels but LPO increased by 116%. Conversely, in the gills LPO levels did not change but PC increased by 317%. In conclusion, these data show that MC-LR induces oxidative damage in both tissues but in different ways, with being liver most sensitive to LPO and gills to PC. This also suggests that the gills are most sensitive to oxidative stress than liver, due to the inhibition of its antioxidant responses following MC-LR exposure. PMID- 29024773 TI - An improved technique for the assessment of venom-induced haemorrhage in a murine model. AB - Haemorrhage is a common clinical manifestation in envenomings caused by bites from snakes of the family Viperidae. Therefore, knowing the haemorrhagic potential of venoms and the capacity of antivenoms to neutralise this effect are of paramount relevance in toxinology. The most widely used method for quantifying haemorrhage involves the intradermal injection of venom (or a mixture of venom/antivenom) in mice, and the assessment of the resulting haemorrhagic area in the inner side of the skin. Although this method allows a straightforward assessment of the haemorrhagic activity of a venom, it does not account for haemorrhagic lesions having a similar area but differing in the depth and intensity of haemorrhage. We have developed an approach that allows the assessment of both area and intensity of a venom-induced haemorrhagic lesion using computational tools and propose a unit to represent the combination of these two factors as a measure of haemorrhage intensity, namely haemorrhagic unit (HaU). A strong correlation was observed between haemoglobin extracted from a haemorrhagic lesion and the associated HaUs. The method was used to determine the haemorrhagic activity of the venoms of Bothrops asper, Echis ocellatus and Crotalus basiliscus and the haemorrhage neutralising capabilities of the three associated antivenoms. Overall, the ease of use, as well as the time involved in this new method, makes its implementation very feasible in the determination of haemorrhagic activity of venoms and its neutralisation by antivenoms in the murine model. PMID- 29024775 TI - Deciphering the complete deletion of the mgrB locus in an unusual colistin resistant Klebsiella pneumoniae isolate colonising the gut of a traveller returning from India. PMID- 29024774 TI - Evaluation of antibacterial potential of mangrove sediment-derived actinomycetes. AB - Actinomycetes are well-known as the source of bioactive metabolites. In this work, 16 out of 118 (13.6%) isolates of mangrove sediment-derived actinomycetes showed potential antibacterial activity against at least one bacterial strain. Five extracts from isolates AMA11, AMA12 and AMA21 exhibited a broad spectrum antibacterial activity against Staphylococcus aureus ATCC25923, Staphylococcus epidermidis ATCC35984, methicillin-resistant S. aureus (MRSA) SK1, Acinetobacter baumannii NPRC004 and Escherichia coli ATCC25922. Ethyl acetate extract from the cells of AMA11 (AMA11CE) showed high activity against S. aureus and MRSA with the lowest minimum inhibitory concentration (MIC) of 0.5 MUg ml-1. At concentration of four times its MIC, AMA11CE destroyed MRSA cells as analysed by the scanning electron microscopy. In addition, AMA11CE, ethyl acetate extract from the culture broth of AMA12 (AMA12BE), AMA12CE and AMA21CE reduced violacein production in Chromobacterium violaceum. Furthermore, at concentrations lower than 10 MUg ml-1, all five extracts inhibited biofilm formation by S. epidermidis ATCC35984. The chemical analysis of the most active fraction from AMA11CE by GC-MS revealed the presence of 3-nitro-1,2-benzenedicarboxylic acid, hexadecanoic acid, quinoxaline 2-carboxamide and pentadecanoic acid. The 16S rDNA sequencing analysis revealed that these three potential isolates belonged to the genus Streptomyces. The results revealed that the actinomycetes from mangrove environment would be a good source of bioactive metabolites against pathogenic bacteria. PMID- 29024777 TI - Validation redefined. PMID- 29024776 TI - Update on tumor-infiltrating lymphocytes (TILs) in breast cancer, including recommendations to assess TILs in residual disease after neoadjuvant therapy and in carcinoma in situ: A report of the International Immuno-Oncology Biomarker Working Group on Breast Cancer. AB - Morphological evaluation of tumor-infiltrating lymphocytes (TILs) in breast cancer is gaining momentum as evidence strengthens the clinical relevance of this immunological biomarker. TILs in the post-neoadjuvant residual disease setting are acquiring increasing importance as a stratifying marker in clinical trials, considering the raising interest on immunotherapeutic strategies after neoadjuvant chemotherapy. TILs in ductal carcinoma in situ, with or without invasive carcinoma, represent an emerging area of clinical breast cancer research. The aim of this report is to update pathologists, clinicians and researchers on TIL assessment in both the post-neoadjuvant residual disease and the ductal carcinoma in situ settings. The International Immuno-Oncology Working Group proposes a method for assessing TILs in these settings, based on the previously published International Guidelines on TIL Assessment in Breast Cancer. In this regard, these recommendations represent a consensus guidance for pathologists, aimed to achieve the highest possible consistency among future studies. PMID- 29024778 TI - Direct comparison between in vivo and in vitro microsized particle phagocytosis assays in Drosophila melanogaster. AB - The effects of micro and nanoparticles on the innate immune system have been widely investigated and a general lack of agreement between in vivo and in vitro assays has been observed. In order to determine the origin of these discrepancies, there is a need for comparing the results of in vivo and in vitro phagocytosis assays obtained using the same particles and same immune cells. Here, we establish an in vivo polystyrene microsized particle phagocytosis assay in Drosophila melanogaster and compare it with an in vitro assay consisting of exposing the same immune cells in culture to the same particles. The distribution of number of phagocytized beads per cell was shifted to lower numbers of beads per cell in the case of the in vitro assay compared to the in vivo assay, which we suggest is partly due to a reduced amount of membrane available in cultured cells. PMID- 29024779 TI - Kinetic characterization of bile salt transport by human NTCP (SLC10A1). AB - The transport of bile acids facilitated by NTCP is an important factor in establishing bile flow. In this study, we examine the kinetics associated with human NTCP-dependent transport of two quantitatively important bile acids comprising the human bile acid pool, chenodeoxycholic acid and glycine chenodeoxycholate, and secondary bile salt, 3-sulfo-glycolithocholate of potential toxicological significance. The study employed human NTCP overexpressing Chinese Hamster Ovary cells and results compared with taurocholate, a prototypical bile salt commonly used in transporter studies. GCDC and 3S-GLC but not CDCA were transported by NTCP. The efficient uptake of GCDC, TCA and 3S-GLC by NTCP enabled the determination of kinetics. GCDC displayed a lower KM (0.569+/-0.318MUM) than TCA (6.44+/-3.83MUM) and 3S-GLC (3.78+/ 1.17MUM). The apparent CLint value for GCDC was 20-fold greater (153+/-53MUl/mg protein/min) than the apparent CLint for TCA (6.92+/-4.72MUl/mg protein/min) and apparent CLint for 3S-GLC (8.05+/-1.33MUl/mg protein/min). These kinetic results provide important complementary data on the substrate selectivity and specificity of NTCP to transport bile acids. NTCP transports GCDC with greater efficiency than TCA and has the same efficacy for 3S-GLC and TCA. PMID- 29024780 TI - Toxicogenomics of the flame retardant tris (2-butoxyethyl) phosphate in HepG2 cells using RNA-seq. AB - Tris (2-butoxyethyl) phosphate (TBOEP) is a compound produced at high volume that is used as both a flame retardant and a plasticizer. It is persistent and bioaccumulative, yet little is known of its toxicological modes of action. Such insight may aid risk assessment in a weight-of-evidence approach supplementing current testing strategies. We used an RNA sequencing approach as an unbiased and sensitive tool to explore potential negative health effects of sub-cytotoxic concentrations of TBOEP on the transcriptome of the human liver hepatocellular carcinoma cell line, HepG2, with the lowest concentration used potentially holding relevance to human physiological levels. Over-representation and gene set enrichment analysis corresponded well and revealed that TBOEP treatments resulted in an upregulation of genes involved in protein and energy metabolism, along with DNA replication. Such increases in cell and macromolecule metabolism could explain the increase in mitochondrial activity at lower TBOEP concentrations. In addition, TBOEP affected a wide variety of biological processes, the most notable one being the general stress response, wound healing. Finally, TBOEP showed effects on steroid hormone biosynthesis and activation, regulation, and potentiation of immune responses, in agreement with other studies. As such, this study is the first study investigating genome-wide changes in gene transcription in response to TBOEP in human cells. PMID- 29024781 TI - The role of androgen receptors in atherosclerosis. AB - Male disadvantage in cardiovascular health is well recognised. However, the influence of androgens on atherosclerosis, one of the major causes of many life threatening cardiovascular events, is not well understood. With the dramatic increase in clinical prescription of testosterone in the past decade, concerns about the cardiovascular side-effects of androgen supplementation or androgen deprivation therapy are increasing. Potential atheroprotective effects of testosterone could be secondary to (aromatase-mediated) conversion into oestradiol or, alternatively, to direct activation of androgen receptors (AR). Recent development of animal models with cell-specific AR knockout has indicated a complex role for androgen action in atherosclerosis. Most studies suggest androgens are atheroprotective but the precise role of AR remains unclear. Increased use of AR knockout models should clarify the role of AR in atherogenesis and, thus, lead to exploitation of this pathway as a therapeutic target. PMID- 29024782 TI - Dysregulation of Delta4-3-oxosteroid 5beta-reductase in diabetic patients: Implications and mechanisms. AB - Aldo-keto reductase family 1 member D1 (AKR1D1) is a Delta4-3-oxosteroid 5beta reductase required for bile acid synthesis and steroid hormone metabolism. Both bile acids and steroid hormones, especially glucocorticoids, play important roles in regulating body metabolism and energy expenditure. Currently, our understanding on AKR1D1 regulation and its roles in metabolic diseases is limited. We found that AKR1D1 expression was markedly repressed in diabetic patients. Consistent with repressed AKR1D1 expression, hepatic bile acids were significantly reduced in diabetic patients. Mechanistic studies showed that activation of peroxisome proliferator-activated receptor-alpha (PPARalpha) transcriptionally down-regulated AKR1D1 expression in vitro in HepG2 cells and in vivo in mice. Consistently, PPARalpha signaling was enhanced in diabetic patients. In summary, dysregulation of AKR1D1 disrupted bile acid and steroid hormone homeostasis, which may contribute to the pathogenesis of diabetes. Restoring bile acid and steroid hormone homeostasis by modulating AKR1D1 expression may represent a new approach to develop therapies for diabetes. PMID- 29024783 TI - Oxygen uptake kinetics following six weeks of interval and continuous endurance exercise training - An explorative pilot study. AB - PURPOSE: The aim of the study was to compare the responses of pulmonary (VO2pulm) and muscle (VO2musc) oxygen uptake kinetics before (PRE) and after (POST) six weeks of endurance exercise training. METHODS: Nine untrained individuals performed pseudo-random binary sequences work rate changes between 30W and 80W at PRE and POST training intervention. Heart rate (HR) and VO2pulm were measured beat-to-beat and breath-by-breath, respectively. VO2musc was estimated applying the approach of Hoffmann et al. (Eur J Appl Physiol 113: 1745-1754, 2013). RESULTS: Maximal oxygen uptake showed significant increases from PRE (3.2+/ 0.3Lmin-1) to POST (3.7+/-0.2Lmin-1; p<0.05). For HR, VO2pulm and VO2musc kinetics no significant changes from PRE to POST training intervention were observed (p>0.05). CONCLUSIONS: Discrepancies in the adaptations of the involved exercise induced physiological systems seem to be responsible for the observed significant alterations in maximal VO2 after six weeks of the training intervention in contrast to no changes in the kinetics responses. PMID- 29024784 TI - Causal Role of Noradrenaline in the Timing of Internally Generated Saccades in Monkeys. AB - We recently found that when monkeys performed an oculomotor version of the time production task, the trial-by-trial latency of self-timed saccades was negatively correlated with pupil diameter just before the delay period (Suzuki et al., 2016). Since pupil diameter has been shown to correlate with neuronal activity in the locus coeruleus, the level of noradrenaline (NA) in the brain might regulate the subjective passage of time. To examine this, we orally administered a selective noradrenaline reuptake inhibitor (reboxetine, 0.4-0.8 mg) when animals made a self-initiated memory-guided saccade >1 s following the appearance of a brief visual cue. We found that reboxetine delayed self-timed saccades, while the latency of visually triggered saccades remained unchanged. Because the changes in proportions and latencies of early impulsive saccades were comparable between conditions with and without drug administration, alteration of self-timing might not result from reduced impulsivity. We also assessed other behavioral parameters (saccade accuracy, velocity, and latency variance), but failed to find any drug effect except for the accuracy of visually triggered saccades in the high-dose condition, indicating that reboxetine specifically altered self-timing under our experimental conditions. Our results suggest that NA-related internal states may causally regulate temporal information processing in the brain. PMID- 29024785 TI - Slow Intrathecal Injection of rAAVrh10 Enhances its Transduction of Spinal Cord and Therapeutic Efficacy in a Mutant SOD1 Model of ALS. AB - Mutant SOD1 causes amyotrophic lateral sclerosis (ALS) by a dominant gain of toxicity. Previous studies have demonstrated therapeutic potential of mutant SOD1 RNAi delivered by intrathecal (IT) injection of recombinant adeno-associated virus (rAAV). However, optimization of delivery is needed to overcome the high degree of variation in the transduction efficiency and therapeutic efficacy. Here, on the basis of our previously defined, efficient IT injection method, we investigated the influence of injection speed on transduction efficiency in the central nervous system (CNS). We demonstrate that slow IT injection results in higher transduction of spinal cord and dorsal root ganglia (DRG) while fast IT injection leads to higher transduction of brain and peripheral organs. To test how these effects influence the outcome of RNAi therapy, we used slow and fast IT injection to deliver rAAVrh10-GFP-amiR-SOD1, a rAAV vector that expresses GFP and an artificial miRNA targeting SOD1, in SOD1-G93A mice. Both slow and fast IT injection produced therapeutic efficacy but the slow injection trended slightly toward a better outcome than the fast injection. These results demonstrate that IT injection speed influences the predominance of gene delivery at different CNS sites and should be taken into consideration in future therapeutic trials involving IT injection. PMID- 29024787 TI - Ketogenic Metabolism Inhibits Histone Deacetylase (HDAC) and Reduces Oxidative Stress After Spinal Cord Injury in Rats. AB - The aim of this study is to investigate the effect of ketogenic metabolism, induced by different diet interventions, on histone acetylation and its potential antioxidant capacity to injured spinal cord tissue in rats. 72 male Sprague Dawley rats were randomly divided into 4 groups, fed with ketogenic diet (KD), every other day fasting (EODF), every other day ketogenic diet (EODKD) and standard diet (SD) respectively for 2 weeks. beta-Hydroxybutyrate (betaOHB) concentration was measured both in serum and cerebrospinal fluid (CSF). C5 spinal cord tissue was harvested before, at 3 h and 24 h after injury for analysis of HDAC activity, histone acetylation and oxidative makers. All three dietary interventions resulted in a significant increase of betaOHB level in both serum and CSF, and inhibited HDAC activity by 31-43% in spinal cord. Moreover, the expressions of acetylated histone AcH3K9 and AcH3K14 were significantly increased. Anti-oxidative stress genes Foxo3a and Mt2 and related proteins, such as mitochondrial superoxide dismutase (SOD), FOXO3a, catalase were increased in dietary intervention groups. After SCI, high ketogenic metabolism demonstrated significant reduction of the expression of lipid peroxidation factors malondialdehyde (MDA), and this might contribute to the reported neuroprotection of the spinal cord from oxidative damage possibly mediated by increasing SOD. The result of this study suggested that by inhibiting HDAC activity and modifying related gene transcription, ketogenic metabolism, induced by KD, EODF or EODKD, might reduce oxidative damage in the spinal cord tissue after acute injury. PMID- 29024786 TI - Neurobiological Correlates of Pain Avoidance-Like Behavior in Morphine-Dependent and Non-Dependent Rats. AB - Repeated use of opioids can lead to the development of analgesic tolerance and dependence. Additionally, chronic opioid exposure can cause a paradoxical emergence of heightened pain sensitivity to noxious stimuli, termed hyperalgesia, which may drive continued or escalated use of opioids to manage worsening pain symptoms. Opioid-induced hyperalgesia has traditionally been measured in rodents via reflex-based assays, including the von Frey method. To better model the cognitive/motivational dimension of pain in a state of opioid dependence and withdrawal, we employed a recently developed non-reflex-based method for measuring pain avoidance-like behavior in animals (mechanical conflict avoidance test). Adult male Wistar rats were administered an escalating dose regimen of morphine (opioid-dependent group) or repeated saline (control group). Morphine dependent rats exhibited significantly greater avoidance of noxious stimuli during withdrawal. We next investigated individual relationships between pain avoidance-like behavior and alterations in protein phosphorylation in central motivation-related brain areas. We discovered that pain avoidance-like behavior was significantly correlated with alterations in phosphorylation status of protein kinases (ERK, CaMKII), transcription factors (CREB), presynaptic markers of neurotransmitter release (Synapsin), and the rate-limiting enzyme for dopamine synthesis (TH) across specific brain regions. Our findings suggest that alterations in phosphorylation events in specific brain centers may support cognitive/motivational responses to avoid pain. PMID- 29024788 TI - Thermostability of the coating, antigen and immunostimulator in an adjuvanted oral capsule vaccine formulation. AB - Oral vaccines present an attractive alternative to injectable vaccines for enteric diseases due to ease of delivery and the induction of intestinal immunity at the site of infection. However, susceptibility to gastrointestinal proteolysis, limited transepithelial uptake and a lack of clinically acceptable adjuvants present significant challenges. A further challenge to mass vaccination in developing countries is the very expensive requirement to maintain the cold chain. We recently described the effectiveness of a Single Multiple Pill(r) (SmPill(r)) adjuvanted capsule approach to enhance the effectiveness of a candidate enterotoxigenic Escherichia coli (ETEC) oral vaccine. Here it was demonstrated that this delivery system maintains the antigenicity of ETEC colonisation factor antigen I (CFA/I) and the immunostimulatory activity of the orally active alpha-Galactosylceramide (alpha-GalCer) adjuvant after storage of SmPill(r) minispheres under room temperature and extreme storage conditions for several months. In addition, the internal structure of the cores of SmPill(r) minispheres and antigen release features at intestinal pH were found to be preserved under all these conditions. However, changes in the surface morphology of SmPill(r) minispheres leading to the antigen release at gastric pH were observed after a few weeks of storage under extreme conditions. Those modifications were prevented by the introduction of an Opadry(r) White film coating layer between the core of SmPill(r) minispheres and the enteric coating. Under these conditions, protection against antigen release at gastric pH was maintained even under high temperature and humidity conditions. These results support the potential of the SmPill(r) minisphere approach to maintain the stability of an adjuvanted whole cell killed oral vaccine formulation. PMID- 29024789 TI - In vitro pharmacological characterization of the bispyridinium non-oxime compound MB327 and its 2- and 3-regioisomers. AB - The primary toxic mechanism of organophosphorus compounds, i.e. nerve agents or pesticides, is based on the irreversible inhibition of acetylcholinesterase. In consequence of the impaired hydrolysis, the neurotransmitter acetylcholine accumulates in cholinergic synapses and disturbs functional activity of nicotinic and muscarinic acetylcholine receptors by overstimulation and subsequent desensitization. The resulting cholinergic syndrome will become acute life threatening, if not treated adequately. The current standard treatment, consisting of administration of a competitive mAChR antagonist (e.g. atropine) and an oxime (e.g. obidoxime, pralidoxime), is not sufficient in the case of soman or tabun intoxications. Consequently, alternative therapeutic options are necessary. An innovative approach comprises the use of compounds selectively targeting nAChRs, especially positive allosteric modulators, which increase the population of the conducting receptor state. MB327 (1,1'-(propane-1,3-diyl)bis(4 tert-butylpyridinium) di(iodide)) is able to restore soman-blocked muscle-force in preparations of various species including human and was recently identified as "resensitizer". In contrast to the well-studied MB327, the pharmacological efficacy of the 2- and 3-tert-butylpyridinium propane regioisomers is unknown. As a first step, MB327 and its 3-regioisomer (PTM0001) and 2-regioisomer (PTM0002) were pharmacologically characterized using [3H]epibatidine binding assays, functional studies by solid supported membranes based electrophysiology, and in vitro muscle-force investigations of soman-poisoned rat hemidiaphragm preparations by indirect field stimulation technique. The results obtained from targets of different complexity (receptor, muscle tissue) showed that the pharmacological profiles of the 2- and 3-regioisomers were relatively similar to those of MB327. Furthermore, high concentrations showed inhibitory effects, which might critically influence the application as an antidote. Thus, more effective drugs have to be developed. Nevertheless, the combination of the methods presented is an effective tool for clarifying structure-activity relationships. PMID- 29024790 TI - DNA methylation and potential multigenerational epigenetic effects linked to uranium chronic low-dose exposure in gonads of males and females rats. AB - INTRODUCTION: An increased health problem in industrialised countries is the contemporary concern of public and scientific community as well. This has been attributed in part to accumulated environmental pollutants especially radioactive substances and the use of nuclear power plants worldwide. However, the outcome of chronic exposure to low doses of a radionuclide such as uranium remains unknown. Recently, a paradigm shift in the perception of risk of radiotoxicology has emerged through investigating the possibility of transmission of biological effects over generations, in particular by epigenetic pathways. These processes are known for their crucial roles associated with the development of several diseases. OBJECTIVE: The current work investigates the epigenetic effect of chronic exposure to low doses of uranium and its inheritance across generations. Materials and Methods To test this proposition, a rodent multigenerational model, males and females, were exposed to a non-toxic concentration of uranium (40mgL-1 drinking water) for nine months. The uranium effects on were evaluated over three generations (F0, F1 and F2) by analysing the DNA methylation profile and DNMT genes expression in ovaries and testes tissues. RESULTS: Here we report a significant hypermethylation of testes DNA (p <0.005) whereas ovaries showed hypomethylated DNA (p <0.005). Interestingly, this DNA methylation profile was significantly maintained across generations F0, F1 and F2. Furthermore, qPCR results of both tissues imply a significant change in the expression of DNA methyltransferase genes (DNMT 1 and DNMT3a/b) as well. CONCLUSION: Altogether, our work demonstrates for the first time a sex-dependance and inheritance of epigenetic marks, DNA methylation, as a biological response to the exposure to low doses of uranium. However, it is not clear which type of reproductive cell type is more responsive in this context. PMID- 29024791 TI - Imaging microstructure in the living human brain: A viewpoint. AB - This special issue summarizes an impressive body of work concerned with in vivo imaging of brain microstructure. Collectively, papers included here demonstrate the power of multi-modal magnetic resonance imaging (MRI) for mapping various structural properties of brain tissue. In this introduction, I provide a user's perspective vis-a-vis motivations for these efforts, review briefly the cellular composition of grey and white matter in the human brain, and provide a few examples of how we can bridge the gap between ex vivo and in vivo datasets to facilitate interpretation of studies measuring brain macro- and microstructure. PMID- 29024792 TI - Effective connectivity inferred from fMRI transition dynamics during movie viewing points to a balanced reconfiguration of cortical interactions. AB - Our behavior entails a flexible and context-sensitive interplay between brain areas to integrate information according to goal-directed requirements. However, the neural mechanisms governing the entrainment of functionally specialized brain areas remain poorly understood. In particular, the question arises whether observed changes in the regional activity for different cognitive conditions are explained by modifications of the inputs to the brain or its connectivity? We observe that transitions of fMRI activity between areas convey information about the tasks performed by 19 subjects, watching a movie versus a black screen (rest). We use a model-based framework that explains this spatiotemporal functional connectivity pattern by the local variability for 66 cortical regions and the network effective connectivity between them. We find that, among the estimated model parameters, movie viewing affects to a larger extent the local activity, which we interpret as extrinsic changes related to the increased stimulus load. However, detailed changes in the effective connectivity preserve a balance in the propagating activity and select specific pathways such that high level brain regions integrate visual and auditory information, in particular boosting the communication between the two brain hemispheres. These findings speak to a dynamic coordination underlying the functional integration in the brain. PMID- 29024794 TI - Brain computer interface with the P300 speller: Usability for disabled people with amyotrophic lateral sclerosis. AB - OBJECTIVES: Amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disease, restricts patients' communication capacity a few years after onset. A proof-of-concept of brain-computer interface (BCI) has shown promise in ALS and "locked-in" patients, mostly in pre-clinical studies or with only a few patients, but performance was estimated not high enough to support adoption by people with physical limitation of speech. Here, we evaluated a visual BCI device in a clinical study to determine whether disabled people with multiple deficiencies related to ALS would be able to use BCI to communicate in a daily environment. METHODS: After clinical evaluation of physical, cognitive and language capacities, 20 patients with ALS were included. The P300 speller BCI system consisted of electroencephalography acquisition connected to real-time processing software and separate keyboard-display control software. It was equipped with original features such as optimal stopping of flashes and word prediction. The study consisted of two 3-block sessions (copy spelling, free spelling and free use) with the system in several modes of operation to evaluate its usability in terms of effectiveness, efficiency and satisfaction. RESULTS: The system was effective in that all participants successfully achieved all spelling tasks and was efficient in that 65% of participants selected more than 95% of the correct symbols. The mean number of correct symbols selected per minute ranged from 3.6 (without word prediction) to 5.04 (with word prediction). Participants expressed satisfaction: the mean score was 8.7 on a 10-point visual analog scale assessing comfort, ease of use and utility. Patients quickly learned how to operate the system, which did not require much learning effort. CONCLUSION: With its word prediction and optimal stopping of flashes, which improves information transfer rate, the BCI system may be competitive with alternative communication systems such as eye-trackers. Remaining requirements to improve the device for suitable ergonomic use are in progress. PMID- 29024795 TI - Are valved holding chambers (VHCs) interchangeable? An in vitro evaluation of VHC equivalence. AB - INTRODUCTION: The European Medicines Agency (EMA) requires that a specific valved holding chamber (VHC) is designated for use with a given pressurised metered dose inhaler (pMDI). No other regulatory authorities impose similar requirements, implying that VHCs are interchangeable. This in vitro study, employing EMA assessment criteria, assessed the equivalence of four anti-static VHCs (aVHCs) versus the non-conducting VHC most widely referenced in pMDI monographs, the AeroChamber PlusTM (AC+) VHC. MATERIAL & METHODS: The "reference" AC + VHC was prepared by soaking in detergent solution. The four test aVHCs (AeroChamber PlusTM Flow-VuTM [AC + FV]; Compact Space Chamber Plus [CSC+]; InspiraChamber [IC]; OptiChamber DiamondTM [OCD]) were tested "out-of-packet". Twenty devices of each type were evaluated. A salbutamol pMDI was actuated into each VHC with a 2-s delay between actuation and Andersen Cascade Impactor (ACI) sampling. Drug deposition in four ACI particle size groups was assessed: Group 1, >5.8-10 MUm; Group 2, >3.3-5.8 MUm; Group 3, >1.1-3.3 MUm; Group 4, <=1.1 MUm. Equivalence versus the reference VHC was demonstrated where the 90% confidence interval for the test/reference mass ratio was within 85-118%. RESULTS: The mass retained within the VHC was similar for the AC + VHC and AC + FV aVHC, but was approximately twice as great for the other aVHCs. Salbutamol deposition in all ACI groups with the AC + FV aVHC was equivalent to the reference AC + VHC. By contrast, deposition in ACI groups 1 to 3 with the CSC+, IC and OCD aVHCs was inequivalent to (approximately half that of) the reference VHC. Inter-device variability for each VHC type was greatest for the IC and least for the AC + VHC and AC + FV aVHC. CONCLUSIONS: The performance of VHCs that superficially resemble one another may differ markedly. Thus, as implied by EMA guidelines, VHCs should not automatically be considered to be interchangeable. PMID- 29024793 TI - Sensorimotor impairment of speech auditory feedback processing in aphasia. AB - We investigated the brain network involved in speech sensorimotor processing by studying patients with post-stroke aphasia using an altered auditory feedback (AAF) paradigm. We combined lesion-symptom-mapping analysis and behavioral testing to examine the pervasiveness of speech sensorimotor deficits and their relationship with cortical damage. Sixteen participants with aphasia and sixteen neurologically intact individuals completed a speech task under AAF. The task involved producing speech vowel sounds under the real-time pitch-shifted auditory feedback alteration. This task provided an objective measure for each individual's ability to compensate for mismatch (error) in speech auditory feedback. Results indicated that compensatory speech responses to AAF were significantly diminished in participants with aphasia compared with control. We observed that within the aphasic group, subjects with lower scores on the speech repetition task exhibited greater degree of diminished responses. Lesion-symptom mapping analysis revealed that the onset phase (50-150 ms) of diminished AAF responses were predicted by damage to auditory cortical regions within the superior and middle temporal gyrus, whereas the rising phase (150-250 ms) and the peak (250-350 ms) of diminished AAF responses were predicted with damage to the inferior frontal gyrus and supramarginal gyrus areas, respectively. These findings suggest that damage to the auditory, motor, and auditory-motor integration networks are associated with impaired sensorimotor function for speech error processing. We suggest that a sensorimotor integration network, as revealed by brain regions related to temporal specific components of AAF responses, is related to speech processing and specific aspects of speech impairment, notably repetition deficits, in individuals with aphasia. PMID- 29024796 TI - Comparative analysis of clinics, pathologies and immune responses in BALB/c and C57BL/6 mice infected with Streptobacillus moniliformis. AB - Streptobacillus (S.) moniliformis is a rat-associated zoonotic pathogen that occasionally causes disease in other species. We investigated the working hypothesis that intranasal infection might lead to different immune responses in C57BL/6 and BALB/c mice associated with distinct pathologies. This study confirmed with 75% mortality the known high susceptibility of C57BL/6 mice to Streptobacillus moniliformis infection in comparison to BALB/c mice which did not develop signs of disease. Main pathologies in C57BL/6 mice were purulent to necrotizing lymphadenitis and pneumonia. Significant seroconversion was recorded in surviving mice of both strains. Differentiation of IgG-subclasses revealed mean ratios of IgG2b to IgG1 below 0.5 in sera of all mice prior to infection and of BALB/c mice post infection. In contrast, C57BL/6 mice had a mean IgG2b/IgG1 ratio of 2.5 post infection indicating a Th1 immune response in C57BL/6 versus a Th2 response in BALB/c mice. Evaluation of different sentinel systems revealed that cultural and serological investigations of these animals might not be sufficient to detect infection. In summary, an intranasal S. moniliformis infection model in C57BL/6 mice leading to purulent to necrotizing inflammations in the lung, the lymph nodes and other organs associated with a Th1 immune response is described. PMID- 29024798 TI - Hysteroscopic Management of Asherman's Syndrome. AB - In developed countries Asherman's syndrome is almost always the result of a prior intrauterine operative trauma. This is often asymptomatic but may result in hypo- or amenorrhea and can contribute to infertility and pregnancy complications. We review their etiology, clinical implications, and systems proposed to classify their extent. The numerous methods reported for performing lysis of intrauterine adhesions are summarized along with clinical results. Current strategies to prevent recurrence of intrauterine adhesions have not been conclusively shown to be clinically effective, but the potential for endometrial regeneration using stem cells is an exciting modality under investigation. PMID- 29024799 TI - Treatment for Uterine Isthmocele, A Pouchlike Defect at the Site of a Cesarean Section Scar. AB - An isthmocele appears as a fluid pouchlike defect in the anterior uterine wall at the site of a prior cesarean section and ranges in prevalence from 19% to 84%, a direct relation to the increase in cesarean sections performed worldwide. Many definitions have been suggested for the dehiscence resulting from cesarean sections, and we propose standardization with a single term for all cases isthmocele. Patients are not always symptomatic, but symptoms typically include intermittent abnormal bleeding, pain, and infertility. Pregnancy complications that result from an isthmocele include ectopic pregnancy, low implantation, and uterine rupture. Magnetic resonance imaging and transvaginal ultrasound are the gold standard imaging techniques for diagnosis. Surgical treatment of an isthmocele is still a controversial issue but should be offered to symptomatic women or the asymptomatic patient who desires future pregnancy. When surgery is the treatment choice, laparoscopy guided by hysteroscopy, hysteroscopy alone, or vaginal repair are the best options depending on the isthmocele's characteristics and surgeon expertise. PMID- 29024797 TI - NLRX1 modulates differentially NLRP3 inflammasome activation and NF-kappaB signaling during Fusobacterium nucleatum infection. AB - NOD-like receptors (NLRs) play a large role in regulation of host innate immunity, yet their role in periodontitis remains to be defined. NLRX1, a member of the NLR family that localizes to mitochondria, enhances mitochondrial ROS (mROS) generation. mROS can activate the NLRP3 inflammasome, yet the role of NLRX1 in NLRP3 inflammasome activation has not been examined. In this study, we revealed the mechanism by which NLRX1 positively regulates ATP-induced NLRP3 inflammasome activation through mROS in gingival epithelial cells (GECs). We found that depletion of NLRX1 by shRNA attenuated ATP-induced mROS generation and redistribution of the NLRP3 inflammasome adaptor protein, ASC. Furthermore, depletion of NLRX1 inhibited Fusobacterium nucleatum infection-activated caspase 1, suggesting that it also inhibits the NLRP3 inflammasome. Conversely, NLRX1 also acted as a negative regulator of NF-kappaB signaling and IL-8 expression. Thus, NLRX1 stimulates detection of the pathogen F. nucleatum via the inflammasome, while dampening cytokine production. We expect that commensals should not activate the inflammasome, and NLRX1 should decrease their ability to stimulate expression of pro-inflammatory cytokines such as IL-8. Therefore, NLRX1 may act as a potential switch with regards to anti-microbial responses in healthy or diseased states in the oral cavity. PMID- 29024800 TI - Transvaginal Resection of an Infected Sacrocolpopexy Mesh by Single-Port Trocar. AB - STUDY OBJECTIVE: Laparoscopy using a single port improves morbidity while keeping the same level of requirement. This technique has been evaluated in gynecology for salpingectomy, ovarian surgery, and hysterectomy. Here, the authors illustrate a new use of a single port using the transvaginal approach. DESIGN: Case report (Canadian Task Force classification III). SETTING: Tertiary referral center in Strasbourg, France. PATIENT: Woman age 59 years. INTERVENTION: Single port platform used in the transvaginal approach for resection of sacrocolpopexy mesh. The local institutional review board approved the video. MEASUREMENTS AND MAIN RESULTS: A 59-year-old woman suffering from insulin-dependent diabetes and a tobacco user had 2 laparoscopic sacrocolpopexies for recurrent rectocele, the first in 2007 and the second in 2012. The sequences were marked by mesh erosion and granuloma in the vagina, requiring its surgical excision in 2016. The patient was then symptomatic, with an increasingly foul-smelling vaginal discharge with recurrent mesh erosion. Magnetic resonance imaging showed an abscess formation along the length of the mesh to the promontory. The patient then underwent surgery, realized under probabilistic antibiotic therapy, consisting of complete excision of the sacrocolpopexy mesh by the transvaginal approach. After putting the single-port trocar (GelPoint; Applied Medical, Rancho Santa Margarita, CA) into the vagina and obtaining distension with the insufflator (AirSeal; Conmed, Utica, NY), classic laparoscopic instruments were introduced by the single-port trocar. The mesh was entirely resected in the retroperitoneal space. Mesh was again used because the exposed space is almost always surrounded by loose granulation tissue that facilitates dissection and also prevents injury to adjacent structures such as bladder, rectum, and peritoneum. Moreover, the opening of adjacent structures will manifest gas leaks and, consequently, loss of the pneumovagina. At the end of procedure, the vagina is not closed to permit optimal drainage with a multitubular drain in the dissection space. The surgery lasted 60 minutes. The mesh excision was completed with relative ease, and there was no blood loss. Bacteriologic examination revealed the presence of Streptococcus anginosus, Klebsiella pneumoniae, and Bacteroides fragili. The operating suites were simple with great cicatrization after 6 weeks. The principal difficulties of this surgery were obtaining a good seal by the creation of cutaneous sutures. Finally, there are less conflicts between the instruments inside the single-port trocar used in transvaginally because of a more limited dissection space. Indeed, the rate of mesh erosion reached 2.4% and, in case of infection, justifies this excision. CONCLUSION: The transvaginal use of a single port trocar represents a good alternative, allowing easy resection of the sacrocolpopexy mesh while remaining in the retroperitoneal space. PMID- 29024802 TI - Synovial and systemic pharmacokinetics (PK) of triamcinolone acetonide (TA) following intra-articular (IA) injection of an extended-release microsphere-based formulation (FX006) or standard crystalline suspension in patients with knee osteoarthritis (OA). AB - OBJECTIVE: Intra-articular (IA) corticosteroids relieve osteoarthritis (OA) pain, but rapid absorption into systemic circulation may limit efficacy and produce untoward effects. We compared the pharmacokinetics (PK) of IA triamcinolone acetonide (TA) delivered as an extended-release, microsphere-based formulation (FX006) vs a crystalline suspension (TAcs) in knee OA patients. METHOD: This Phase 2 open-label study sequentially enrolled 81 patients who received a single IA injection of FX006 (5 mL, 32 mg delivered dose, N = 63) or TAcs (1 mL, 40 mg, N = 18). Synovial fluid (SF) aspiration was attempted in each patient at baseline and one post-IA-injection visit (FX006: Week 1, Week 6, Week 12, Week 16 or Week 20; TAcs: Week 6). Blood was collected at baseline and multiple post-injection times. TA concentrations (validated LC-MS/MS, geometric means (GMs)), PK (non compartmental analysis models), and adverse events (AEs) were assessed. RESULTS: SF TA concentrations following FX006 were quantifiable through Week 12 (pg/mL: 231,328.9 at Week 1; 3590.0 at Week 6; 290.6 at Week 12); post-TAcs, only two of eight patients had quantifiable SF TA at Week 6 (7.7 pg/mL). Following FX006, plasma TA gradually increased to peak (836.4 pg/mL) over 24 h and slowly declined to <110 pg/mL over Weeks 12-20; following TAcs, plasma TA peaked at 4 h (9628.8 pg/mL), decreased to 4991.1 pg/mL at 24 h, and was 149.4 pg/mL at Week 6, the last post-treatment time point assessed. AEs were similar between groups. CONCLUSION: In knee OA patients, microsphere-based TA delivery via a single IA injection prolonged SF joint residency, diminished peak plasma levels, and thus reduced systemic TA exposure relative to TAcs. PMID- 29024801 TI - Population-based prevalence of multiple radiographically-defined hip morphologies: the Johnston County Osteoarthritis Project. AB - OBJECTIVE: To provide the first prevalence estimates of different radiographic hip morphologies relevant to dysplasia and femoroacetabular impingement in a well characterized USA population-based cohort. METHODS: Cross-sectional data were from the baseline examination (1991-1997) of a large population-based prospective longitudinal cohort study (The Johnston County Osteoarthritis Project). HipMorf software (Oxford, UK) was used to assess hip morphology on anteroposterior (AP) pelvis radiographs. Weighted, sex-stratified prevalence estimates and 95% confidence intervals for four key hip morphologies (AP alpha angle, triangular index sign, lateral center edge angle (LCEA), and protrusio acetabula) were derived and further stratified by age, race and body mass index (BMI). RESULTS: A total of 5192 hips from 2596 individuals were included (31% African American, 43% male, mean age 63 years, mean BMI 29 kg/m2). Cam morphology was seen in more than 25% of men and 10% of women. Mild dysplasia was present in about 1/3 of men and women, while pincer morphology was identified in 7% of men and 10% of women. Femoral side (cam) morphologies were more common and more frequently bilateral among men, while pincer morphologies were more common in women; mixed morphologies were infrequent. African-Americans were more likely to have protrusio acetabula than whites. CONCLUSION: We report the first population-based prevalence estimates of radiographic hip morphologies relevant to femoroacetabular impingement (FAI) and dysplasia in the USA. These morphologies are very common, with 1/4 men and 1/10 women having cam morphology, 1/3 of all adults having mild dysplasia, and 1/15 men and 1/10 women having pincer morphology in at least one hip. PMID- 29024803 TI - Graft-Derived Reconstitution of Mucosal-Associated Invariant T Cells after Allogeneic Hematopoietic Cell Transplantation. AB - Mucosal-associated invariant T (MAIT) cells express a semi-invariant Valpha7.2+ T cell receptor (TCR) that recognizes ligands from distinct bacterial and fungal species. In neonates, MAIT cells proliferate coincident with gastrointestinal (GI) bacterial colonization. In contrast, under noninflammatory conditions adult MAIT cells remain quiescent because of acquired regulation of TCR signaling. Effects of inflammation and the altered GI microbiota after allogeneic hematopoietic cell transplantation (HCT) on MAIT cell reconstitution have not been described. We conducted an observational study of MAIT cell reconstitution in myeloablative (n = 41) and nonmyeloablative (n = 66) allogeneic HCT recipients and found that despite a rapid and early increase to a plateau at day 30 after HCT, MAIT cell numbers failed to normalize for at least 1 year. Cord blood transplant recipients and those who received post-HCT cyclophosphamide for graft versus host disease (GVHD) prophylaxis had profoundly impaired MAIT cell reconstitution. Sharing of TCRbeta gene sequences between MAIT cells isolated from HCT grafts and blood of recipients after HCT showed early MAIT cell reconstitution was due at least in part to proliferation of MAIT cells transferred in the HCT graft. Inflammatory cytokines were required for TCR dependent MAIT cell proliferation, suggesting that bacterial Valpha7.2+ TCR ligands might promote MAIT cell reconstitution after HCT. Robust MAIT cell reconstitution was associated with an increased GI abundance of Blautia spp. MAIT cells suppressed proliferation of conventional T cells consistent with a possible regulatory role. Our data identify modifiable factors impacting MAIT cell reconstitution that could influence the risk of GVHD after HCT. PMID- 29024804 TI - Impact of HLA Disparity in Haploidentical Bone Marrow Transplantation Followed by High-Dose Cyclophosphamide. AB - We studied the impact of HLA mismatching on the outcome of 318 consecutive patients who received an unmanipulated haploidentical bone marrow transplant, followed by post-transplant cyclophosphamide (PTCy). The number of HLA-mismatched antigens was tested for its impact on overall survival (OS) and nonrelapse mortality (NRM), whereas HLA mismatches in the graft-versus-host (GVH) direction were tested for prediction of graft-versus-host disease (GVHD and relapse. Finally, we studied whether graft rejection correlated with the number of HLA mismatched antigens in host-versus-graft (HVG) direction. Two hundred thirty-one donor-recipient pairs (72%) had 4/8 mismatches at the -A, -B, -C, -DRB1 HLA loci. HLA mismatches did not predict the 2-year OS (hazard ratio, .83; P = .58) and NRM (subhazard ratio, 1.08; P = .93). The cumulative incidence of acute GVHD (P = .13), 1-year chronic GVHD (P = .84), and relapse rate (P = .26) did not correlate with univectorial GVH mismatches. Similarly, no correlation was observed between the amount of HLA mismatch in the HVG direction and graft rejection. In multivariate analysis advanced disease at transplant was the strongest predictor of survival, NRM, relapse, and graft rejection. In conclusion, the degree of HLA mismatching should not be used as a criterion to select family haploidentical donors when using bone marrow as stem cell source and PTCy for GVHD prophylaxis. PMID- 29024805 TI - Demonstrating significant benefit of orphan medicines: analysis of 15 years of experience in Europe. AB - In the European Union demonstration of 'significant benefit' is mandatory if satisfactory methods exist for a disease targeted by a new orphan medicinal product. Significant benefit is required at the time of orphan designation, when it can be supported by preclinical studies, and at the time of marketing authorization, when clinical data are needed. For the first time, our work has identified, defined and organized the scientific grounds on which significant benefit is granted in the European Union, based on a review of the orphan medicinal products authorized in the years 2000-2015, and on the working experience of the Committee of Orphan Medicinal Products. The resulting conceptual framework is a tool for medicine developers to reflect on potential areas of advantage of their candidate products, and for a broad range of stakeholders to stimulate the discussion on the added value of orphan medicines across the whole development lifecycle. PMID- 29024806 TI - Dimerization and oxidation of tryptophan in UV-A photolysis sensitized by kynurenic acid. AB - Photoinduced generation of radicals in the eye lens may play an important role in the modification of proteins leading to their coloration, aggregation, and insolubilization. The radicals can be formed via the reactions of photoexcited endogenous chromophores of the human lens with lens proteins, in particular with tryptophan residues. In the present work we studied the reactions induced by UV-A (315-400nm) light between kynurenic acid (KNA), an effective photosensitizer present in the human lens, and N-acetyl-L-tryptophan (NTrpH) under aerobic and anaerobic conditions. Our results show that the reaction mechanism strongly depends on the presence of oxygen in solution. Under aerobic conditions, the generation of singlet oxygen is the major channel of the effective NTrpH oxidation. In argon-bubbled solutions, the quenching of triplet KNA by NTrpH results in the formation of KNA*- and NTrp* radicals. Under laser pulse irradiation, when the radical concentration is high, the main pathway of the radical decay is the back electron transfer with the restoration of initial reagents. Other reactions include (i) the radical combination yielding NTrp dimers and (ii) the oxygen atom transfer from KNA*- to NTrp* with the formation of oxidized NTrp species and deoxygenated KNA products. In continuous-wave photolysis, even trace amounts of molecular oxygen are sufficient to oxidize the majority of KNA*- radicals with the rate constant of (2.0 +/- 0.2) * 109M-1s-1, leading to the restoration of KNA and the formation of superoxide radical O2*-. The latter reacts with NTrp* via either the radical combination to form oxidized NTrp (minor pathway), or the electron transfer to restore NTrpH in the ground state (major pathway). As the result, the quantum yields of the starting compound decomposition under continuous-wave anaerobic photolysis are rather low: 1.6% for NTrpH and 0.02% for KNA. The photolysis of KNA with alpha-crystallin yields the same deoxygenated KNA products as the photolysis of KNA with NTrpH, indicating the similarity of the photolysis mechanisms. Thus, inside the eye lens KNA can sensitize both protein photooxidation and protein covalent cross-linking with the minor self-degradation. This may play an important role in the lens protein modifications during the normal aging and cataract development. PMID- 29024807 TI - Reactive oxygen species enhance mitochondrial function, insulin sensitivity and glucose uptake in skeletal muscle of senescence accelerated prone mice SAMP8. AB - Whereas reactive oxygen species (ROS) can have opposite impacts on insulin signaling, they have mainly been associated with mitochondrial dysfunction in skeletal muscle. We analyzed the relationship between these three features in skeletal muscle of senescence accelerated mice (SAM) prone (P8), which are characterized by enhanced oxidative stress compared to SAM resistant (R1). Oxidative stress, ROS production, antioxidant system, mitochondrial content and functioning, as well as in vitro and in vivo insulin signaling were investigated in gastrocnemius and quadriceps muscles. In SAMP8 compared to SAMR1, muscle content in carbonylated proteins was two-fold (p < 0.01) and ROS production by xanthine oxidase 70% (p < 0.05) higher. Furthermore, insulin-induced Akt phosphorylation measured in vivo and ex vivo as well as muscle glucose uptake measured ex vivo were significantly higher (p < 0.05). Mitochondrial respiration evidenced uncoupling and higher respiration rates with substrates of complexes II and IV, in agreement with higher maximal activity of complexes II and IV (+ 18% and 62%, respectively, p < 0.05). By contrast, maximal activity of complex I was 22% lower (p < 0.05). All strain differences were corrected after 6 months of N acetylcysteine (NAC) treatment, thus supporting the involvement of high ROS production in these differences. In conclusion in muscle of SAMP8 compared to SAMR1, high ROS production is associated to higher insulin sensitivity and glucose uptake but to lower mitochondrial complex I activity. These conflicting adaptations, with regards to the resulting imbalance between NADH production and use, were associated with intrinsic adjustments in the mitochondrial respiration chain (mitochondrial uncoupling, enhanced complexes II and IV activity). We propose that these bioenergetics adaptations may help at preserving muscle metabolic flexibility of SAMP8. PMID- 29024808 TI - Critical care nurses' experiences of withdrawal of treatment: A systematic review of qualitative evidence. AB - BACKGROUND: Death and dying is a reality of the clinical context of the intensive care unit. Death often follows a decision to withdraw life-sustaining treatments. Critical care nurses, are the primary care providers to patients and families at the end-of-life in the intensive care unit. OBJECTIVE: To synthesize qualitative evidence on the experiences of critical care nurses who have cared for patients and families throughout the process of withdrawal of life-sustaining treatment. METHODS: This was a systematic review and qualitative evidence synthesis modeled on the Joanna Briggs Methodology. Pre-defined keywords were searched for in Medline, CINAHL, PsycInfo, and Web of Science to locate studies published in the English, French, and Greek languages in any year. Two reviewers independently screened articles for congruence with eligibility criteria, engaged in data extraction, and assessed quality of the included studies. Meta-aggregation was performed to synthesize the findings. A protocol was developed by two members of the review team prior to initiation of the study. RESULTS: Thirteen studies were included in the review, 12 qualitative and one mixed-methods. Four key themes were identified from the original research: Navigating Complexity and Conflict; Focusing on the Patient; Working with Families; and Dealing with Emotions Related to Treatment Withdrawal. Critical care nurses provide care to patients and families during the process of withdrawal of life-sustaining treatment which is described as complex and challenging. Despite the inherent challenges, nurses strive towards doing their utmost for patients and families. PMID- 29024809 TI - Towards a more complex perspective on workplace violence: More to come? Commentary on Zhang et al., 2017 "Workplace violence against nurses: A cross sectional study". PMID- 29024810 TI - MAGEA6 promotes human glioma cell survival via targeting AMPKalpha1. AB - Melanoma antigen A6 (MAGEA6)/TRIM28 complex is a cancer-specific ubiquitin ligase, which degradates tumor suppressor protein AMP-activated protein kinase (AMPK). We show that MAGEA6 is uniquely expressed in human glioma tissues and cells, which is correlated with AMPKalpha1 downregulation. It is yet absent in normal brain tissues and human astrocytes/neuronal cells. MAGEA6 knockdown by targeted-shRNA in glioma cells restored AMPKalpha1 expression, causing mTORC1 in activation and cell death/apoptosis. Reversely, AMPKalpha1 knockdown or mutation ameliorated glioma cell death by MAGEA6 shRNA. In vivo, Glioma xenograft tumor growth in mice was largely inhibited following expressing MAGEA6 shRNA. AMPKalpha1 upregulation and mTORC1 inhibition were observed in MAGEA6 shRNA bearing xenograft tissues. Collectively, MAGEA6 promotes glioma cell survival possibly via targeting AMPKalpha1. PMID- 29024811 TI - CNOT2 promotes proliferation and angiogenesis via VEGF signaling in MDA-MB-231 breast cancer cells. AB - Here the underlying role of CNOT2, a subunit of CCR4-NOT complex, was elucidated in cancer progression. CNOT2 was overexpressed in HIT-T15, ASPC-1, BXPC-3, PC-3, LNCaP, MCF-7 and MDA-MB-231 cell lines, which was confirmed by Tissue array in various human tumor tissues. Also, CNOT2 depletion suppressed proliferation and colony formation of MDA-MB-231 cells. Of note, microarray revealed decreased expression of CNOT2, VEGF-A, HIF2 alpha (<0.5 fold) and increased expression of UMOD1, LOC727847, MMP4, hCG and other genes (>2.0 fold) in CNOT2 depleted MDA-MB 231 cells compared to untreated control. Consistently, downregulation of VEGF, CNOT2 and HIF2 alpha was verified in CNOT2 depleted MDA-MB-231 cells by RT-qPCR. Additionally, CNOT2 depletion inhibited VEGF induced tube formation in HUVECs and reduced neovascularization in CAM assay. Furthermore, the growth of CNOT2 depleted MDA-MB-231 cells was significantly reduced in Balb/c nude mice along with decreased expression of VEGF and PCNA by immunohistochemistry compared to untreated control group. Overall, our findings provide evidences that CNOT2 promotes proliferation and angiogenesis via VEGF signaling in MDA-MB-231 breast cancer cells as a potent molecular target for breast cancer treatment. PMID- 29024812 TI - Inhibition of pyruvate carboxylase by 1alpha,25-dihydroxyvitamin D promotes oxidative stress in early breast cancer progression. AB - Maintaining reductive-oxidative (redox) balance is an essential feature in breast cancer cell survival, with cellular metabolism playing an integral role in maintaining redox balance through its supply of reduced NADPH. In the present studies, the effect of 1,25-dihydroxyvitamin D (1,25(OH)2D) on redox balance was investigated in early stages of breast cancer. Treatment with 1,25(OH)2D promoted oxidative stress in MCF10A-ras and MCF10A-ErbB2 breast epithelial cells, as measured by the decreased ratios of NADPH/NADP+ and reduced to oxidized glutathione (GSH/GSSG). The mRNA and protein expression of the enzyme pyruvate carboxylase (PC) was downregulated with 1,25(OH)2D treatment, suggesting a potential mechanism. Genetic depletion of PC in MCF10A-ras cells resulted in a decreased ratio of NADPH/NADP+ and GSH/GSSG, with 1,25(OH)2D treatment having no further effect. Mutation analysis confirmed the presence and functionality of a vitamin D response element in the PC gene promoter region. Collectively, these results provide evidence that 1,25(OH)2D promotes oxidative stress in early breast cancer progression through transcriptional downregulation of PC. PMID- 29024813 TI - A prodrug of green tea polyphenol (-)-epigallocatechin-3-gallate (Pro-EGCG) serves as a novel angiogenesis inhibitor in endometrial cancer. AB - Anti-angiogenesis effect of a prodrug of green tea polyphenol (-) epigallocatechin-3-gallate (Pro-EGCG) in malignant tumors is not well studied. Here, we investigated how the treatment with Pro-EGCG inhibited tumor angiogenesis in endometrial cancer. Tumor xenografts of human endometrial cancer were established and subjected to microarray analysis after Pro-EGCG treatment. First, we showed Pro-EGCG inhibited tumor angiogenesis in xenograft models through down-regulation of vascular endothelial growth factor A (VEGFA) and hypoxia inducible factor 1 alpha (HIF1alpha) in tumor cells and chemokine (C-X-C motif) ligand 12 (CXCL12) in host stroma by immunohistochemical staining. Next, we investigated how HIF1alpha/VEGFA was down-regulated and how the reduction of CXCL12 inhibited tumor angiogenesis. We found that VEGFA secretion from endometrial cancer cells was decreased by Pro-EGCG treatment through inhibiting PI3K/AKT/mTOR/HIF1alpha pathway. Furthermore, the down-regulation of CXCL12 in stromal cells by Pro-EGCG treatment restricted migration and differentiation of macrophages thereby inhibited infiltration of VEGFA-expressing tumor-associated macrophages (TAMs). Taken together, we demonstrated that treatment with Pro-EGCG not only decreases cancer cell-secreted VEGFA but also inhibits TAM-secreted VEGFA in endometrial cancer. These findings demonstrate that Pro-EGCG is a novel angiogenesis inhibitor for endometrial cancer. PMID- 29024814 TI - Anti-tumor effects of NVP-BKM120 alone or in combination with MEK162 in biliary tract cancer. AB - There are currently no clinically validated therapeutic targets for biliary tract cancer (BTC). Despite promising results in other cancers, compounds targeting the phosphatidylinositol 3-kinase (PI3K)/AKT pathway, alone or in combination with Ras/Raf/MEK pathway inhibitors, have not been evaluated in BTC. Here, we examined the effects of a pan-PI3K inhibitor (BKM120) with or without a MEK inhibitor (MEK162), on eight human BTC cell lines carrying mutations in K-Ras and/or the PI3K catalytic subunit, PI3KCA. BKM120 inhibited the colony-forming ability and migration of BTC cells carrying wild-type (WT) PI3KCA and either mutant (MT) or WT K-Ras, but not of cells carrying mutations in both genes. In K-Ras-WT cells, BKM120 decreased the phosphorylation of Akt, its downstream effector kinase p70S6K, and the translational repressor 4E-BP1. Interestingly, BKM120 did not induce cell cycle arrest or suppress PI3K signaling via restoration of p-4E-BP1 in cells with PIK3CA and K-Ras double mutations. Notably, the resistance of dual K-Ras/PI3KCA-mutant cells to BKM120 was overcome by treatment with a combination of BKM120 and MEK162. Our findings thus support the clinical development of BKM120 monotherapy or BKM120/MEK162 combination therapy for the treatment of BTC. PMID- 29024815 TI - Identification of a novel autophagic inhibitor cepharanthine to enhance the anti cancer property of dacomitinib in non-small cell lung cancer. AB - Inhibition of autophagy is a promising strategy for non-small cell lung cancer (NSCLC) treatment, which is in the clinical trials. However, only chloroquine is used in clinic as an autophagic inhibitor and the inhibitory effect of chloroquine on autophagy is finite. Therefore, the development of an alternative autophagic inhibitor for NSCLC therapy becomes necessary. In the present study, cepharanthine (CEP), an alkaloid extracted from Stephania cepharantha Hayata, was identified as a novel autophagic inhibitor in NSCLC cells. The potential mechanism of the CEP-inhibited autophagy was by blockage of autophagosome lysosome fusion and inhibition of lysosomal cathepsin B and cathepsin D maturation. Furthermore, we found for the first time that dacomitinib (DAC), a second-generation epidermal growth factor receptor inhibitor that in the phase III clinical trials for NSCLC treatment, induced a protective autophagy to decrease its anti-cancer effect. Combined treatment with CEP increased the anti proliferative and apoptotic effects of DAC in vitro and enhanced the anti-cancer effect of DAC in NCI-H1975 xenograft mice. Collectively, CEP might be further developed as an autophagic inhibitor, and combined treatment of CEP and DAC could offer an effective strategy for NSCLC treatment. PMID- 29024816 TI - Radiation, radionuclides and bacteria: An in-perspective review. AB - There has been a significant surge in consumption of radionuclides for various academic and commercial purposes. Correspondingly, there has been a considerable amount of generation of radioactive waste. Bacteria and archaea, being earliest inhabitants on earth serve as model microorganisms on earth. These microbes have consistently proven their mettle by surviving extreme environments, even extreme ionizing radiations. Their ability to accept and undergo stable genetic mutations have led to development of recombinant mutants that are been exploited for remediation of various pollutants such as; heavy metals, hydrocarbons and even radioactive waste (radwaste). Thus, microbes have repeatedly presented themselves to be prime candidates suitable for remediation of radwaste. It is interesting to study the behind-the-scenes interactions these microbes possess when observed in presence of radionuclides. The emphasis is on the indigenous bacteria isolated from radionuclide containing environments as well as the five fundamental interaction mechanisms that have been studied extensively, namely; bioaccumulation, biotransformation, biosorption, biosolubilisation and bioprecipitation. Application of microbes exhibiting such mechanisms in remediation of radioactive waste depends largely on the individual capability of the species. Challenges pertaining to its potential bioremediation activity is also been briefly discussed. This review provides an insight into the various mechanisms bacteria uses to tolerate, survive and carry out processes that could potentially lead the eco-friendly approach for removal of radionuclides. PMID- 29024817 TI - Oceanic dispersion of Fukushima-derived Cs-137 simulated by multiple oceanic general circulation models. AB - To understand the concentration and amount of Fukushima-derived Cs-137 in the ocean, this study simulated the oceanic dispersion of Cs-137 by atmospheric and oceanic dispersion simulations. The oceanic dispersion simulations were carried out with an oceanic dispersion model and multiple oceanic general circulation models. The Cs-137 concentrations were sensitive to ocean currents in the coastal, offshore, and open oceans. The mean Cs-137 concentrations of the multiple models relatively well agreed with the observed concentrations in the coastal and offshore oceans during the first few months after the Fukushima disaster, and in the open ocean during the first year after the disaster. The Cs 137 amounts were quantified in the coastal, offshore, and open oceans during the first year after the disaster. It was suggested that Cs-137 actively dispersed from the coastal and offshore oceans to the open ocean, and from the surface layer to the deeper layers in the North Pacific. PMID- 29024818 TI - Differential cortical contribution of syntax and semantics: An fMRI study on two word phrasal processing. AB - Linguistic expressions consist of sequences of words combined together to form phrases and sentences. The neurocognitive process handling word combination is drawing increasing attention among the neuroscientific community, given that the underlying syntactic and semantic mechanisms of such basic combinations-although essential to the generation of more complex structures-still need to be consistently determined. The current experiment was conducted to disentangle the neural networks supporting syntactic and semantic processing at the level of two word combinations. We manipulated the combinatorial load by using words of different grammatical classes within the phrase, such that determiner-noun combinations (this ship) were used to boost neural activity in syntax-related areas, while adjective-noun combinations (blue ship) were conversely used to measure neural response in semantic-related combinations. By means of functional magnetic resonance imaging (fMRI), we found that syntax-related processing mainly activates the most ventral part of the inferior frontal gyrus (IFG), along the frontal operculum (FOP) and anterior insula (aINS). Fine-grained analysis in BA44 confirmed that the most inferior-ventral portion is highly sensitive to syntactic computations driven by function words. Semantic-related processing on the contrary, rather engages the anterior dorsal part of the left IFG and the left angular gyrus (AG) that is two regions which appear to perform different functions within the semantic network. Our findings suggest that syntactic and semantic contribution to phrasal formation can be already differentiated at a very basic level, with each of these two processes comprising non-overlapping areas on the cerebral cortex. Specifically, they confirm the role of the ventral IFG for the construction of syntactically legal linguistic constructions, and the prominence of the more anterior IFG and the AG for conceptual semantics. PMID- 29024819 TI - A modular metabolic engineering approach for the production of 1,2-propanediol from glycerol by Saccharomyces cerevisiae. AB - Compared to sugars, a major advantage of using glycerol as a feedstock for industrial bioprocesses is the fact that this molecule is more reduced than sugars. A compound whose biotechnological production might greatly profit from the substrate's higher reducing power is 1,2-propanediol (1,2-PDO). Here we present a novel metabolic engineering approach to produce 1,2-PDO from glycerol in S. cerevisiae. Apart from implementing the heterologous methylglyoxal (MG) pathway for 1,2-PDO formation from dihydroxyacetone phosphate (DHAP) and expressing a heterologous glycerol facilitator, the employed genetic modifications included the replacement of the native FAD-dependent glycerol catabolic pathway by the 'DHA pathway' for delivery of cytosolic NADH and the reduction of triosephosphate isomerase (TPI) activity for increased precursor (DHAP) supply. The choice of the medium had a crucial impact on both the strength of the metabolic switch towards fermentation in general (as indicated by the production of ethanol and 1,2-PDO) and on the ratio at which these two fermentation products were formed. For example, virtually no 1,2-PDO but only ethanol was formed in synthetic glycerol medium with urea as the nitrogen source. When nutrient-limited complex YG medium was used, significant amounts of 1,2-PDO were formed and it became obvious that the concerted supply of NADH and DHAP are essential for boosting 1,2-PDO production. Additionally, optimizing the flux into the MG pathway improved 1,2-PDO formation at the expense of ethanol. Cultivation of the best-performing strain in YG medium and a controlled bioreactor set-up resulted in a maximum titer of > 4gL-1 1,2-PDO which, to the best of our knowledge, has been the highest titer of 1,2-PDO obtained in yeast so far. Surprisingly, significant 1,2-PDO production was also obtained in synthetic glycerol medium after changing the nitrogen source towards ammonium sulfate and adding a buffer. PMID- 29024820 TI - Coating of silicone with mannoside-PAMAM dendrimers to enhance formation of non pathogenic Escherichia coli biofilms against colonization of uropathogens. AB - : Bacterial interference using non-pathogenic Escherichia coli 83972 is a novel strategy for preventing catheter-associated urinary tract infection (CAUTI). Crucial to the success of this strategy is to establish a high coverage and stable biofilm of the non-pathogenic bacteria on the catheter surface. However, this non-pathogenic strain is sluggish to form biofilms on silicone as the most widely used material for urinary catheters. We have addressed this issue by modifying the silicone catheter surfaces with mannosides that promote the biofilm formation, but the stability of the non-pathogenic biofilms challenged by uropathogens over long-term remains a concern. Herein, we report our study on the stability of the non-pathogenic biofilms grown on propynylphenyl mannoside modified silicone. The result shows that 94% non-pathogenic bacteria were retained on the modified silicone under >0.5 Pa shear stress. After being challenged by three multidrug-resistant uropathogenic isolates in artificial urine for 11 days, large amounts (>4 * 106 CFU cm-2) of the non-pathogenic bacteria remained on the surfaces. These non-pathogenic biofilms reduced the colonization of the uropathogens by >3.2-log. STATEMENT OF SIGNIFICANCE: In bacterial interference, the non-pathogenic Escherichia coli strains are sluggish to form biofilms on the catheter surfaces, due to rapid removal by urine flow. We have demonstrated a solution to this bottleneck by pre-functionalization of mannosides on the silicone surfaces to promote E. coli biofilm formation. A pre conjugated high affinity propynylphenyl mannoside ligand tethered to the nanometric amino-terminated poly(amido amine) (PAMAM) dendrimer is used for binding to a major E. coli adhesin FimH. It greatly improves the efficiency for the catheter modification, the non-pathogenic biofilm coverage, as well as the (long-term) stability for prevention of uropathogen infections. PMID- 29024821 TI - Improving the efficiency of psychological treatment using outcome feedback technology. AB - AIMS: This study evaluated the impact of applying computerized outcome feedback (OF) technology in a stepped care psychological service offering low and high intensity therapies for depression and anxiety. METHODS: A group of therapists were trained to use OF based on routine outcome monitoring using depression (PHQ 9) and anxiety (GAD-7) measures. Therapists regularly reviewed expected treatment response graphs with patients and discussed cases that were "not on track" in clinical supervision. Clinical outcomes data were collected for all patients treated by this group (N = 594), six months before (controls = 349) and six months after the OF training (OF cases = 245). Symptom reductions in PHQ-9 and GAD-7 were compared between controls and OF cases using longitudinal multilevel modelling. Treatment duration and costs were compared using MANOVA. Qualitative interviews with therapists (N = 15) and patients (N = 6) were interpreted using thematic analysis. RESULTS: OF technology was generally acceptable and feasible to integrate in routine practice. No significant between-group differences were found in post-treatment PHQ-9 or GAD-7 measures. However, OF cases had significantly lower average duration and cost of treatment compared to controls. CONCLUSIONS: After adopting OF into their practice, this group of therapists attained similar clinical outcomes but within a shorter space of time and at a reduced average cost per treatment episode. We conclude that OF can improve the efficiency of stepped care. PMID- 29024822 TI - Pubertally Initiated High-Fat Diet Promotes Mammary Tumorigenesis in Obesity Prone FVB Mice Similarly to Obesity-Resistant BALB/c Mice. AB - Premenopausal breast cancer is associated with increased animal fat consumption among normal-weight but not overweight women. Our previous findings in obesity resistant BALB/c mice showed that a diet high in saturated animal fat (HFD) promotes mammary tumorigenesis in both DMBA carcinogenesis and Trp53-null transplant models. Having made these observations in BALB/c mice, which have very modest HFD weight gain, we determined the effects of HFD in FVB mice, which gain significant weight on HFD. Three-week-old FVB mice fed a low-fat diet or HFD were subjected to 7,12-dimethylbenz[a]anthracene-induced carcinogenesis. Like BALB/c mice, HFD promoted mammary tumorigenesis. Development of tumors largely occurred prior to mice becoming obese, indicating the role of animal-derived HFD rather than resulting obesity in tumor promotion. Also similar to BALB/c mice, early occurring adenosquamous mammary tumors were abundant among HFD-fed FVB mice. Tumors from HFD mice also had increased intra-tumor M2 macrophages. Prior to tumor development, HFD accelerated normal mammary gland development and increased mammary M2 macrophages, similarly to BALB/c mice. The promotional effects of puberty-initiated HFD on carcinogen-induced mammary cancer are thus largely weight gain-independent. Like BALB/c mice, HFD promoted adenosquamous tumors, suggesting a role for early age HFD in promoting this subtype of triple negative mammary cancer. M2 macrophage recruitment was common to both mouse strains. We speculate that a similar effect of HFD on immune function may contribute to epidemiological findings of increased breast cancer risk in young, premenopausal, normal-weight women who consume a diet high in saturated animal fat. PMID- 29024823 TI - Genetic Variations of GWAS-Identified Genes and Neuroblastoma Susceptibility: a Replication Study in Southern Chinese Children. AB - Neuroblastoma is one of the most commonly diagnosed solid cancers for children, and genetic factors may play a critical role in neuroblastoma development. Previous genome-wide association studies (GWASs) have identified nine genes associated with neuroblastoma susceptibility in Caucasians. To determine whether genetic variations in these genes are also associated with neuroblastoma susceptibility in Southern Chinese children, we genotyped 25 polymorphisms within these genes by the TaqMan method in 256 cases and 531 controls. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to evaluate the strength of the associations. We performed a meta-analysis to further evaluate the associations. Furthermore, we calculated the area under the receiver-operating characteristic curves (AUC) to assess which gene/genes may better predict neuroblastoma risk. We confirmed that CASC15 rs6939340 A>G, rs4712653 T>C, rs9295536 C>A, LIN28B rs221634 A>T, and LMO1 rs110419 A>G were associated with significantly altered neuroblastoma susceptibility. We also confirmed that rs6939340 A>G (G versus A: OR=1.30, 95% CI=1.13-1.50) and rs110419 G>A (A versus G: OR=1.37, 95% CI=1.19 1.58) were associated with increased neuroblastoma risk for all subjects. We also found that the combination of polymorphisms in CASC15, LIN28B, and LMO1 may be used to predict neuroblastoma risk (AUC=0.63, 95% CI=0.59-0.67). Overall, we verified five GWAS-identified polymorphisms that were associated with neuroblastoma susceptibility alteration for Southern Chinese population; however, these results need further validation in studies with larger sample sizes. PMID- 29024824 TI - Body mass index and fitness in high-functioning children and adolescents with cerebral palsy: What happened over a decade? AB - BACKGROUND: In recent decades, improving fitness has become an important goal in rehabilitation medicine in children and adolescents with cerebral palsy (CP). AIMS: To compare body mass index (BMI), performance-related fitness, and cardiorespiratory fitness of children with CP measured in 2014 with a comparable sample from 2004. METHODS AND PROCEDURES: In total, 25 high-functioning children with CP (i.e., GMFCS I-II) measured in 2004 (13 boys; mean age 13.2 (2.6) years) were matched to 25 children measured in 2014. Outcomes included body mass and BMI, muscle power sprint test (MPST), 10*5m sprint test, and a shuttle run test (SRT). Data of 15 participants from 2004 (10 boys; mean age 12.6 (2.5) years) were matched and analysed for VO2peak. OUTCOMES AND RESULTS: Body mass and BMI were higher (both: p<0.05) in the 2014 cohort compared to the 2004 cohort. Further, performance-related fitness was better for the 2014 cohort on the MPST (p=0.004), the 10*5m sprint test (p=0.001), and the SRT (p<0.001). However, there were no differences for VO2peak. CONCLUSIONS AND IMPLICATIONS: In high funcitoning children with CP, there are positive ecological time trends in performance-related fitness, but not in VO2peak between 2004 and 2014. The substantial higher body mass and BMI is alarming and requires further investigation. PMID- 29024826 TI - Letter regarding the article "Extending the phenotype of recurrent rearrangements of 16p11.2: Deletions in mentally retarded patients without autism and in normal individuals ()" and the diagnosis of coexisting Mowat-Wilson syndrome in a patient with 16p11.2 deletion. PMID- 29024825 TI - A grounded visualization approach to explore sociospatial and temporal complexities of older adults' mobility. AB - In the past decade, there has been an increasing interest in older adults' mobility. Most often, mobility is measured quantitatively as physical movement (e.g. physical activity) or travel behavior (e.g. trips, modes, and distances). There is a need to integrate both quantitative and qualitative data over time to visualize both context and content in a spatial and temporal dimension and discover patterns and explanations for their underlying processes. We aim to address this gap by demonstrating how a grounded visualization approach can be used to explore sociospatial and temporal complexities of older adults' mobility. We present two cases of active community (urban) dwelling older adults with low incomes (age > 65) who live in Metro Vancouver, Canada, over a period of 4 years. Geographical Position Systems (GPS) (QStarz Datalogger BT-Q1000x) data is used to capture the destinations participants travel to and the routes they take to get there. Survey data provides socio-demographic characteristics and neighborhood environments. Interview data capture perceptions, attitudes, and motivations of destinations and route choices over time. Integration of the methods identified the following themes: spatial perceptions of neighborhood, consistency in travel patterns, changes in physical health, familiarity with place and access over time. Our grounded visualization approach demonstrates how georeferenced qualitative data can be combined with quantitative spatial data to provide a deeper understanding of the complexity of older adults' mobility experiences over time. Findings illustrate that time is a necessary component of older adults' engagement with place; familiarity influences spatial perceptions of local and distant 'neighbourhoods'; and older adults prioritize destinations that allow them to engage in multiple activities. By integrating methods we are able to gain a better understanding of challenges faced by older adults at multiple systems levels, and uncover resources and assets available to remediate them. PMID- 29024827 TI - Left ventricular non-compaction with Ebstein anomaly attributed to a TPM1 mutation. AB - Left ventricular non-compaction (cardiomyopathy) (LVN(C)) is a rare hereditary cardiac condition, resulting from abnormal embryonic myocardial development. While it mostly occurs as an isolated condition, association with other cardiovascular manifestations such as Ebstein anomaly (EA) has been reported. This congenital heart defect is characterized by downward displacement of the tricuspid valve and leads to diminished ventricular size and function. In an autosomal dominant LVN(C) family consisting of five affected individuals, of which two also presented with EA and three with mitral valve insufficiency, we pursued the genetic disease cause using whole exome sequencing (WES). WES revealed a missense variant (p.Leu113Val) in TPM1 segregating with the LVN(C) phenotype. TPM1 encodes alpha-tropomyosin, which is involved in myocardial contraction, as well as in stabilization of non-muscle cytoskeletal actin filaments. So far, LVN(C)-EA has predominantly been linked to pathogenic variants in MYH7. However, one sporadic LVN(C)-EA case with a de novo TPM1 variant has recently been described. We here report the first LVN(C)-EA family segregating a pathogenic TPM1 variant, further establishing the association between EA predisposition and TPM1-related LVN(C). Consequently, we recommend genetic testing for both MYH7 and TPM1 in patients or families in which LVN(C)/non compaction and EA coincide. PMID- 29024828 TI - A classical Ehlers-Danlos syndrome family with incomplete presentation diagnosed by molecular testing. AB - The 2017 EDS revised nosology indicates that minimal criteria suggestive for classical Ehlers-Danlos syndrome (cEDS) are skin hyperextensibility plus atrophic scarring together with either generalized joint hypermobility (gJHM) and/or at least three minor criteria that include cutaneous features and gJHM complications. Confirmatory molecular testing is obligatory to reach a final diagnosis. Although the large majority of the patients presents with these clinical features, some do not and might remain undiagnosed or misdiagnosed. Here we describe a family with 2 affected members, a 23-year-old proposita and her 51 year-old mother, who presented subtle cutaneous signs, including a variable degree of skin hyperextensibility without extensive widened atrophic scars that apparently better fitted with the overlapping hypermobile EDS. The proposita also presented gastrointestinal symptoms secondary to aberrant mast cells mediators release, making the clinical picture even more puzzling. Both patients were diagnosed by molecular testing that revealed a COL5A1 splice mutation. This report highlights the relevance of molecular analysis in patients presenting rather mild signs of EDS, especially in familial cases, and the importance of clinical expertise to make such a diagnosis. PMID- 29024829 TI - Distal renal tubular acidosis in a Libyan patient: Evidence for digenic inheritance. AB - AIM OF THE STUDY: Recent advances in understanding the underlying molecular mechanism for distal renal tubular acidosis (dRTA), led to an increased attention towards the primary and the familial forms of the disease. Mutations in ATP6V1B1 and ATP6V0A4 are usually responsible for the recessive form of the disease. Mutations in gene AE1 encoding the Cl-/HCO3- exchanger, usually present as dominant dRTA, but a recessive pattern has been recently described. Our objective is to identify the mutational spectrum responsible of dRTA in a consanguineous Libyan family. MATERIALS AND METHODS: Both ATP6V0A4 and ATP6V1B1 genes were preferentially screened in our patient. Additional whole exome sequencing (WES) in the same patient, offered a wider view on potential chromosomal rearrangements as well as the mutational spectrum of other genes involved in this disease. RESULTS: The patient is a heterozygote for two different mutations, one in each of the genes ATP6V0A4 and ATP6V1B1, while no deleterious variation was detected in the remaining genes responsible for the recessive form of dRTA. Homozygosity mapping and WES confirmed our findings and supported the hypothesis of a digenic inheritance model existing as an explanation for dRTA. CONCLUSIONS: To our knowledge, this is the first report describing a Libyan patient with dRTA who suffered from early-onset sensorineural hearing loss, with a digenic mode of inheritance, supported by the identification of two novel mutations. This study increases the understanding of how dRTA is genetically transmitted, while offers a good outline towards the molecular diagnostics and genetic counseling for dRTA in Lybians. PMID- 29024830 TI - New ocular finding in Baraitser-Winter syndrome (BWS). AB - Baraitser-Winter syndrome was first described as a syndrome of iris coloboma, ptosis, hypertelorism, and mental retardation (Baraitser and Winter 1988; Baraitser, 2016). The phenotypic spectrum has since broadened to include other facial dysmorphic features, deafness, microcephaly, lissencephaly, and CNS findings (Baraitser and Winter 1988; Ganesh et al., 2005; Henedy et al., 2010; Verloes et al., 2015). The syndrome is due to pathogenic variants on either ACTB or ACTG1 genes (Di Donato et al., 2014; Riviere et al., 2012). There is still discussion which gene variant produces a more severe phenotype (Di Donato et al., 2016; Di Donato et al., 2014; Verloes et al., 2015). We report a 3-year-old girl with short stature, mild global developmental delay, minor brain anomalies and few dysmorphic features including unusual stroma of the irises and unreported corectopia. Exome sequencing reported a de novo likely pathogenic variant on the ACTB gene. The present report adds a new ocular finding to the phenotypic spectrum. PMID- 29024831 TI - Multiple SLC26A2 mutations occurring in a three-generational family. AB - Multiple epiphyseal dysplasias (MED) are a group of heterogeneous skeletal dysplasias, which share a common phenotype: short stature, skeletal deformities, joint pain and early onset osteoarthritis. Mutations in COMP account for approximately half of autosomal dominant MED cases whilst SLC26A2 mutations account for ~25% of the recessive cases in the Caucasian population. We present here an interesting family, which was thought to initially have an autosomal dominant skeletal dysplasia. Using a targeted sequencing skeletal dysplasia panel, the proband was found to be a compound heterozygote for two mutations in SLC26A2, one novel mutation, p.Ser522Phe and the other, the common mutation, p.Arg279Trp. In addition to the classical characteristics of MED, she presented with an atypical feature, bilateral synostoses between the 2nd and 3rd metatarsals. The parents were confirmed to be heterozygous for the two mutations but interestingly, the maternal grandfather, who had MED, was found to be homozygous for the common SLC26A2 mutation. PMID- 29024832 TI - Somatic second hit mutation of RASA1 in vascular endothelial cells in capillary malformation-arteriovenous malformation. AB - Capillary malformation-arteriovenous malformation (CM-AVM) is an autosomal dominant vascular disorder that is associated with inherited inactivating mutations of the RASA1 gene in the majority of cases. Characteristically, patients exhibit one or more focal cutaneous CM that may occur alone or together with AVM, arteriovenous fistulas or lymphatic vessel abnormalities. The focal nature and varying presentation of lesions has led to the hypothesis that somatic "second hit" inactivating mutations of RASA1 are necessary for disease development. In this study, we examined CM from four different CM-AVM patients for the presence of somatically acquired RASA1 mutations. All four patients were shown to possess inactivating heterozygous germline RASA1 mutations. In one of the patients, a somatic inactivating RASA1 mutation (c.1534C > T, p.Arg512*) was additionally identified in CM lesion tissue. The somatic RASA1 mutation was detected within endothelial cells specifically and was in trans with the germline RASA1 mutation. Together with the germline RASA1 mutation (c.2125C > T, p.Arg709*) in the same patient, the endothelial cell somatic RASA1 mutation likely contributed to lesion development. These studies provide the first clear evidence of the second hit model of CM-AVM pathogenesis. PMID- 29024833 TI - Health of VLBW infants in Germany at five years of age: What do parents describe? AB - BACKGROUND: There are only few data on medical problems and utilization of health services of former very low birth weight (VLBW) children at preschool age. STUDY DESIGN: At five years of age parents of a cohort of VLBW children (N=862) received questionnaires, a medical interview and examination. The results were compared to the KIGGS cohort (Deutscher-Kinder-und Jugendgesundheitssurvey, N=777). RESULTS: Parents of the VLBW and KIGGS cohort reported a very good or good health in 95% in their children. When compared to the KIGGS cohort, families in the VLBW cohort had a lower social economic status. The VLBW cohort suffered more frequently from disabilities (9.6% vs. 1.4%), from chronic bronchitis (45% vs. 17%) and from recurrent pain (headaches (20% vs. 7%), ear (16% vs. 6%), throat (23% vs. 8%), tooth (10% vs. 3%)). The VLBW cohort received more specialized care (ophthalmologist, ENT, orthopaedics, paediatric neurologist). CONCLUSION: Families of VLBW children report a good health status in their children, but they utilized more specialized care. Higher rates of pain are reported in the VLBW cohort. Chronic bronchitis and various upper respiratory infections cause an increased morbidity in former VLBW children. Follow up programs are needed to develop optimal treatment and prevention strategies for these problems. PMID- 29024834 TI - Intermittent bilateral anterior sub-costal quadratus lumborum block for effective analgesia in lower abdominal surgery. PMID- 29024835 TI - Managed access technology to combat contraband cell phones in prison: Findings from a process evaluation. AB - Cell phones in correctional facilities have emerged as one of the most pervasive forms of modern contraband. This issue has been identified as a top priority for many correctional administrators in the United States. Managed access, a technology that utilizes cellular signals to capture transmissions from contraband phones, has received notable attention as a promising tool to combat this problem. However, this technology has received little evaluative attention. The present study offers a foundational process evaluation and draws upon output measures and stakeholder interviews to identify salient operational challenges and subsequent lessons learned about implementing and maintaining a managed access system. Findings suggest that while managed access captures large volumes of contraband cellular transmissions, the technology requires significant implementation planning, personnel support, and complex partnerships with commercial cellular carriers. Lessons learned provide guidance for practitioners to navigate these challenges and for scholars to improve future evaluations of managed access. PMID- 29024836 TI - Performance of a simple robust empiric timing protocol for CT pulmonary angiography. AB - OBJECTIVE: We instituted a new, simple CT pulmonary angiography (CTPA) contrast material timing protocol using a standard empiric delay to replace our previous timing bolus method. This study tests the hypothesis that the empiric protocol more consistently produces diagnostic quality images of both the pulmonary arteries and the aorta with lower radiation exposure. MATERIALS AND METHODS: We performed a retrospective review of consecutive CTPAs for 2months both before and after the protocol change. Pulmonary artery and aortic enhancement, patient characteristics, radiation exposure and results of CTPA were analyzed. RESULTS: There were 182 patients in the timing bolus group and 164 in the empiric timing group. Both groups had a female majority (59%) and a similar mean age (58 and 57years, respectively). Enhancement was significantly higher both for the pulmonary artery (median 400HU versus 359HU, P<0.001) and aorta (median 381HU versus 218HU, P<0.01) in the empiric timing group versus the timing bolus group, respectively. Radiation exposure was lower (5.3mSv versus 6.0mSv, P=0.05) in the empiric timing group, despite a higher body-mass-index (31 versus 29kg/m2, P<0.01). Pulmonary embolism positivity rate was non-significantly higher in the timing bolus vs the empiric timing group (19% and 13%, P=0.1). CONCLUSION: A simple empiric timing protocol for CTPA has robust performance compared to a timing bolus protocol. Empiric timing preserves the required high diagnostic quality for evaluation of the pulmonary arteries with the added benefits of aortic enhancement and lower radiation exposure. PMID- 29024837 TI - Translating the role of osteogenic-angiogenic coupling in bone formation: Highly efficient chitosan-pDNA activated scaffolds can accelerate bone regeneration in critical-sized bone defects. AB - The clinical translation of bioactive scaffolds for the treatment of large segmental bone defects has remained a challenge due to safety and efficacy concerns as well as prohibitive costs. The design of an implantable, biocompatible and resorbable device, which can fill the defect space, allow for cell infiltration, differentiation and neovascularisation, while also recapitulating the natural repair process and inducing cells to lay down new bone tissue, would alleviate the problems with existing treatments. We have developed a gene-activated scaffold platform using a bone-mimicking collagen hydroxyapatite scaffold loaded with chitosan nanoparticles carrying genes encoding osteogenic (BMP-2) and angiogenic (VEGF) proteins. With a single treatment, protein expression by mesenchymal stem cells (MSCs) seeded onto the scaffold is sustained for up to 28 days and is functional in inducing MSC osteogenesis. The in vivo safety and efficacy of this gene-activated scaffold platform was demonstrated resulting in the successful transfection of host cells, abrogating the requirement for multiple procedures to isolate cells or ex vivo cell culture. Furthermore, the level of bone formation at the exceptionally early time-point of 28 days was comparable to that achieved following recombinant BMP-2 protein delivery after 8 weeks in vivo, without the adverse side effects and at a fraction of the cost. This naturally derived cell-free gene-activated scaffold thus represents a new 'off-the-shelf' product capable of accelerating bone repair in critical-sized bone defects. PMID- 29024838 TI - Organ-on-chip models of cancer metastasis for future personalized medicine: From chip to the patient. AB - Most cancer patients do not die from the primary tumor but from its metastasis. Current in vitro and in vivo cancer models are incapable of satisfactorily predicting the outcome of various clinical treatments on patients. This is seen as a serious limitation and efforts are underway to develop a new generation of highly predictive cancer models with advanced capabilities. In this regard, organ on-chip models of cancer metastasis emerge as powerful predictors of disease progression. They offer physiological-like conditions where the (hypothesized) mechanistic determinants of the disease can be assessed with ease. Combined with high-throughput characteristics, the employment of organ-on-chip technology would allow pharmaceutical companies and clinicians to test new therapeutic compounds and therapies. This will permit the screening of a large battery of new drugs in a fast and economic manner, to accelerate the diagnosis of the disease in the near future, and to test personalized treatments using cells from patients. In this review, we describe the latest advances in the field of organ-on-chip models of cancer metastasis and their integration with advanced imaging, screening and biosensing technologies for future precision medicine applications. We focus on their clinical applicability and market opportunities to drive us forward to the next generation of tumor models for improved cancer patient theranostics. PMID- 29024839 TI - Hepatic artery aneurysm causing gastrointestinal haemorrhage - Case report and literature review. AB - INTRODUCTION: True hepatic artery aneurysms (HAAs) are rare, and when complicated by gastrointestinal haemorrhage, it becomes an even rarer disease entity. The mortality is high and imaging may fail to provide the diagnosis. We present a case of a true hepatic artery aneurysm complicated by a fistula to the duodenum which was first recognised during surgery. PRESENTATION OF CASE: A 77-year-old man presented with upper gastrointestinal haemorrhage. Upper endoscopy revealed an ulceration in the duodenal bulb, which was refractory to endoscopic treatment. Computed tomography and angiography did not reveal the source of haemorrhage and as such, the diagnosis was delayed, until laparotomy was performed. Resection of the HAA and graft placement resulted in complete haemostasis. DISCUSSION: True hepatic aneurysms communicating with the gastrointestinal tract have only been presented in case reports and short case series. Arteriosclerosis is a relatively common risk factor, but the underlying pathology is unknown. Meanwhile, gastrointestinal haemorrhage is a symptom of other, more common diseases in the gastrointestinal tract, and these factors, complicate the diagnostic workup. CONCLUSION: In the case of treatment refractory duodenal haemorrhage, a visceral aneurysm should be considered. Even though angiography is performed, a HAA may remain undetected due to bleeding cessation. Improved computed tomography modalities could aid in the detection of gastrointestinal haemorrhage from HAAs, and ensure timely treatment by endovascular methods or surgery if the diagnosis is kept in mind in the initial evaluation. PMID- 29024840 TI - A case report of endometriosis presenting as an acute small bowel obstruction. AB - INTRODUCTION: Endometriosis is a common and benign condition that causes significant morbidity to women of childbearing age. It uncommonly affects the gastrointestinal tract and rarely manifests as an acute small bowel obstruction. PRESENTATION OF CASE: A 46-year old female presented to the emergency department with signs and symptoms consistent with an acute small bowel obstruction. She had a paucity of background surgical history, having only had a laparoscopic cholecystectomy. Her CT demonstrated small bowel obstruction with a transition point in the distal ileum. Given the site of obstruction was remote from previous surgery, a high index of suspicion was maintained and early laparoscopy performed the same day. Operative findings were consistent with an endometrial stricture of the distal ileum and a formal resection was performed. DISCUSSION: Endometriosis that affects the gastrointestinal tract often presents with non-specific symptoms. This is a rare case of an acute small bowel obstruction as the index symptom of endometriosis in a peri-menopausal patient. This is the first case in the literature to describe same day laparoscopy and small bowel resection of such a case and a prolonged preoperative period and misdiagnoses previously described were avoided due to clinical suspicion. CONCLUSION: Endometriosis as a differential should be considered with a high index of suspicion in pre menopausal women, particularly in patients with negligible previous surgical history. There should be a low threshold for early laparoscopy and resection of affected bowel in these patients. PMID- 29024841 TI - Complicated acute appendicitis presenting as an abscess in the abdominal wall in an elderly patient: A case report. AB - INTRODUCTION: Appendicitis is a common cause of acute abdomen; however, the classic clinical signs are not often present, and it has unusual presentations. Thus, its diagnosis can be challenging. PRESENTATION OF CASE: We describe the case of an elderly man who presented with right abdominal wall abscess with spontaneous drainage in the emergency department. Since we suspected a subjacent abdominal pathology, we performed surgery, and intraoperatively, we observed that the Appendix tip had invaded the abdominal wall. DISCUSSION: This patient had a challenging diagnostic process and surgical visualization of the appendicular tip invading the abdominal wall was an important characteristic in proving the cause of the abdominal wall abscess. CONCLUSION: The onset of an abdominal wall abscess without a known cause needs to be thoroughly investigated, with consideration of a subjacent abdominal cause and appendicitis necessitatis. PMID- 29024842 TI - Peritoneal carcinomatosis-like implants of extramedullary hematopoiesis. An insolite occurrence during splenectomy for myelofibrosis. AB - INTRODUCTION: Primary myelofibrosis (MF) is a myeloproliferative neoplasm that results in debilitating constitutional symptoms, splenomegaly, and cytopenias. In patients with symptomatic splenomegaly, splenectomy remains a viable treatment option for MF patients with medically refractory symptomatic splenomegaly that precludes the use of ruxolitinib. CASE PRESENTATION: We present the clinical case of a patient who was admitted to our Department to perform a splenectomy in MF as a therapeutic step prior to an allogeneic stem cell transplantation (ASCT). A laparotomic splenectomy and excision of whitish wide-spread peritoneal and omental nodulations was performed. There were no operative complications and the surgery was completed with minimal blood loss. The histopathological exam revealed an extramedullary hematopoiesis in both spleen and peritoneal nodules. CONCLUSION: In primary myelofibrosis it must always be kept in mind the possible presence of peritoneal implants of extramedullary hematopoiesis and ascites of reactive genesis. We report a rare case of peritoneal carcinomatosis-like implants of extramedullary hematopoiesis found at splenectomy for MF. PMID- 29024843 TI - Multisensory integration and ADHD-like traits: Evidence for an abnormal temporal integration window in ADHD. AB - Abnormalities in multimodal processing have been found in many developmental disorders such as autism and dyslexia. However, surprisingly little empirical work has been conducted to test the integrity of multisensory integration in Attention Deficit Hyperactivity Disorder (ADHD). The main aim of the present study was to examine links between symptoms of ADHD (as measured using a self report scale in a healthy adult population) and the temporal aspects of multisensory processing. More specifically, a Simultaneity Judgement (SJ) and a Temporal Order Judgement (TOJ) task were used in participants with low and high levels of ADHD-like traits to measure the temporal integration window and Just Noticeable Difference (JND) (respectively) between the timing of an auditory beep and a visual pattern presented over a broad range of stimulus onset asynchronies. The Point of Subjective Similarity (PSS) was also measured in both cases. In the SJ task, participants with high levels of ADHD-like traits considered significantly fewer stimuli to be simultaneous than participants with high levels of ADHD-like traits, and the former were found to have significantly smaller temporal windows of integration (although no difference was found in the PSS in the SJ or TOJ tasks, or the JND in the latter). This is the first study to identify an abnormal temporal integration window in individuals with ADHD-like traits. Perceived temporal misalignment of two or more modalities can lead to distractibility (e.g., when the stimulus components from different modalities occur separated by too large of a temporal gap). Hence, an abnormality in the perception of simultaneity could lead to the increased distractibility seen in ADHD. PMID- 29024845 TI - Intracerebral stimulation of left and right ventral temporal cortex during object naming. AB - While object naming is traditionally considered asa left hemisphere function, neuroimaging studies have reported activations related to naming in the ventral temporal cortex (VTC) bilaterally. Our aim was to use intracerebral electrical stimulation to specifically compare left and right VTC in naming. In twenty-three epileptic patients tested for visual object naming during stimulation, the proportion of naming impairments was significantly higher in the left than in the right VTC (31.3% vs 13.6%). The highest proportions of positive naming sites were found in the left fusiform gyrus and occipito-temporal sulcus (47.5% and 31.8%). For 17 positive left naming sites, an additional semantic picture matching was carried out, always successfully performed. Our results showed the enhanced role of the left compared to the right VTC in naming and suggest that it may be involved in lexical retrieval rather than in semantic processing. PMID- 29024844 TI - Structural characterisation of the capsular polysaccharide expressed by Burkholderia thailandensis strain E555:: wbiI (pKnock-KmR) and assessment of the significance of the 2-O-acetyl group in immune protection. AB - Burkholderia pseudomallei and its close relative B. mallei are human pathogens that are classified as Tier 1 bio-threat agents. Both organisms have previously been shown to constitutively produce a capsular polysaccharide (CPS) that is both a virulence determinant and protective antigen. Extraction and purification of CPS for use as a potential vaccine candidate requires containment level 3 laboratories which is expensive and time-consuming. B. thailandensis strain E555 is closely related to B. pseudomallei and B. mallei, but is non-pathogenic to humans and based on immunological cross-reactivity has previously been shown to express a B. pseudomallei-like CPS. In this study, capsular polysaccharide isolated from an O-antigen deficient strain of B. thailandensis E555 was identified by 1H and 13C NMR spectroscopy as -3-)-2-O-acetyl-6-deoxy-beta-d-manno heptopyranose-(-1, and identical to that produced by B. pseudomallei. This was further substantiated by anti-CPS monoclonal antibody binding. In connection with the production of CPS fragments for use in glycoconjugate vaccines, we set out to assess the importance or otherwise of the CPS 2-OAc groups in immune protection. To this end conjugates of the native and de-O-acetylated CPS with the Hc fragment of tetanus toxin (TetHc) were used as vaccines in a mouse model of melioidosis. The level of protection provided by deacetylated CPS was significantly lower than that from native, acetylated CPS. In addition, sera from mice vaccinated with the deacetylated CPS conjugate did not recognise native CPS. This suggests that CPS extracted from B. thailandensis can be used as antigen and that the acetyl group is essential for protection. PMID- 29024846 TI - Attentional control and executive functioning in school-aged children: Linking self-regulation and parenting strategies. AB - Good parenting strategies can shape children's neurocognitive development, yet little is known about the nature of this relation in school-aged children and whether this association shifts with age. We aimed to investigate the relation between parenting strategies observed during a home visit and children's performance-based attentional control and executive functioning (N=98, aged 4 8years). Linear and curvilinear regression analyses showed that children of parents who were more supportive, were less intrusive, and asked more open-ended questions displayed better inhibitory control. In addition, children of parents who asked relatively more open-ended than closed-ended questions showed better performance on inhibition, working memory, and cognitive flexibility tasks. Curvilinear relations indicated the presence of an optimal amount of closed-ended and elaborative questions by parents-that is, not too few and not too many-which is linked to increased performance on attentional and inhibitory control in children. Higher parental intrusiveness and more frequent elaborative questioning were associated with decreased inhibitory control in younger children, whereas no such negative associations were present in older children. These results suggest that susceptibility to certain parenting strategies may shift with age. Our findings underscore the importance of adaptive parenting strategies to both the age and needs of school-aged children, which may positively affect their self regulation skills. PMID- 29024847 TI - How children remember the Strange Situation: The role of attachment. AB - This study tested predictions from Bowlby's attachment theory about children's memory and suggestibility. Young children (3-5years old, N=88; 76% Caucasians) and their parents took part in the Strange Situation Procedure, a moderately distressing event and "gold standard" for assessing children's attachment quality. The children were then interviewed about what occurred during the event. Children's age and attachment security scores positively predicted correct information in free recall and accuracy in answering specific questions. For children with higher (vs. lower) attachment security scores, greater distress observed during the Strange Situation Procedure predicted increased resistance to misleading suggestions. In addition, for children who displayed relatively low distress during the Strange Situation Procedure, significant age differences in memory and suggestibility emerged as expected. However, for children who displayed greater distress during the Strange Situation Procedure, younger and older children's memory performances were equivalent. Findings suggest that attachment theory provides an important framework for understanding facets of memory development with respect to attachment-related information and that distress may alter assumed age patterns in memory development. PMID- 29024848 TI - Incorporation of surface plasmon resonance with novel valinomycin doped chitosan graphene oxide thin film for sensing potassium ion. AB - In this study, the combination of novel valinomycin doped chitosan-graphene oxide (C-GO-V) thin film and surface plasmon resonance (SPR) system for potassium ion (K+) detection has been developed. The novel C-GO-V thin film was deposited on the gold surface using spin coating technique. The system was used to monitor SPR signal for K+ in solution with and without C-GO-V thin film. The K+ can be detected by measuring the SPR signal when C-GO-V thin film is exposed to K+ in solution. The sensor produces a linear response for K+ ion up to 100ppm with sensitivity and detection limit of 0.00948 degrees ppm-1 and 0.001ppm, respectively. These results indicate that the C-GO-V film is high potential as a sensor element for K+ that has been proved by the SPR measurement. PMID- 29024849 TI - Hydrogen sulfide alleviates the cold stress through MPK4 in Arabidopsis thaliana. AB - Hydrogen sulfide (H2S) is a gaseous signaling molecule that mediates physiological processes in animals and plants. In this study, we investigated the relationship of H2S and mitogen activated protein kinase (MAPK) under cold stress in Arabidopsis. H2S up-regulated MAPK expression levels and was involved in the cold stress-related upregulation of MAPK genes expression. We then chose MPK4 whose expression level was influenced the most by H2S as a target and found that H2S's ability to alleviate cold stress required MPK4. Both H2S and MPK4 regulated the expression levels of the cold response genes inducer of CBF expression 1 (ICE1), C-repeat-binding factors (CBF3), cold responsive 15A (COR15A) and cold responsive 15B (COR15B). H2S inhibited the opening of stomata under cold stress, which required the participation of MPK4. In conclusion, MPK4 is a downstream component of H2S-related cold-stress resistance, and H2S and MPK4 both regulated the cold response genes and stomatal movement to response the cold stress. PMID- 29024850 TI - Combined effects of fungal inoculants and the cytokinin-like growth regulator thidiazuron on growth, phytohormone contents and endophytic root fungi in Miscanthus * giganteus. AB - Aim of this study was to investigate main effects and interactions between symbiotic fungi and the cytokinin-like growth regulator thidiazuron (TDZ) in Miscanthus * giganteus. The arbuscular mycorrhiza fungus Rhizophagus intraradices (AMF) and the endophyte Piriformospora indica (PI) were chosen as model symbionts. The fungal inoculants and TDZ had no significant effect on plant growth but modulated phytohormone levels in the leaves. TDZ induced accumulation of salicylic acid in controls, but not in plants inoculated with fungi. Leaf concentrations of abscisic acid (ABA) derivatives, auxin (indole-3-acetic acid) precursors and catabolites and numerous cytokinins were increased by R. intraradices but lowered by P. indica. TDZ raised concentrations of ABA compounds, the non-indole auxin phenylacetic acid, jasmonate and some cytokinins, but decreased cis-zeatin and N6-(Delta2-isopentenyl)adenine levels. Inoculation with AMF reduced abundance of endogenous clampless endophytes. TDZ application strongly reduced formation of arbuscular mycorrhiza and increased occurrence of clamped mycelia (i.e. basidiomycetous endophytes). Our study provides a thorough outline of the phytohormone homeostasis under the combined influence of beneficial inoculants and a growth regulator, highlighting the necessity to study their interaction in the whole plant-microbial context. PMID- 29024851 TI - Infectivity of Sf-rhabdovirus variants in insect and mammalian cell lines. AB - Sf-rhabdovirus was only recently identified as an adventitious agent of Spodoptera frugiperda (Sf) cell lines used as hosts for baculovirus vectors. As such, we still know little about its genetic variation, infectivity, and the potential impact of variation on the Sf-rhabdovirus-host interaction. Here, we characterized Sf-rhabdoviruses from two widely used Sf cell lines to confirm and extend information on Sf-rhabdovirus variation. We then used our novel Sf rhabdovirus-negative (Sf-RVN) Sf cell line to assess the infectivity of variants with and without a 320bp X/L deletion and found both established productive persistent infections in Sf-RVN cells. We also assessed their infectivity using heterologous insect and mammalian cell lines and found neither established productive persistent infections in these cells. These results are the first to directly demonstrate Sf-rhabdoviruses are infectious for Sf cells, irrespective of the X/L deletion. They also confirm and extend previous results indicating Sf rhabdoviruses have a narrow host range. PMID- 29024852 TI - The cation-selective exhaustive injection and sweeping capillary electrophoresis method for the analysis of chlorpheniramine enantiomers in rat plasma. AB - Chlorpheniramine is a potent antihistaminic administered as a racemic mixture, while its clinical activity is mainly associated with the S-enantiomer. In this study, a sensitive and rapid on-line preconcentration capillary electrophoresis (CE) method, cation-selective exhaustive injection (CSEI) and sweeping method was established and validated for the analysis of two chlorpheniramine enantiomers. Parameters influencing separation and enhancement efficiency were investigated, including cyclodextrin (CD) types and concentration, background electrolyte pH, type and content of organic modifier, injection time of water plug, injection time and voltage of sample. A zone of 30mM Tris buffer at pH 3.5 without chiral selector was injected into the capillary followed by a 3s water plug, allowing for the analytes to be electrokinetically injected at a voltage of 10kV for 80s. A 30mM Tris buffer at pH 3.5 consisting of 20mM sulfated-beta-cyclodextrin (S beta-CD) and 5% methanol was found to be highly efficient for the separation of the two enantiomers. The present method manifested that high sensitivity (0.025MUg/mL for the thethe lower limit of quantification), satisfactory accuracy (89.2%-95.0%) and precision (relative standard deviation within 8.4%) were achieved as well as favourable stability. The extraction recoveries of two enantiomers were both above 72.5%. Finally, the developed method was successfully applied to pharmacokinetic study of the two enantiomers in rat plasma after oral administration of racemic chlorpheniramine. PMID- 29024854 TI - The effect of associative strength on semantic priming in schizophrenia. AB - The present research was designed to investigate the pattern of semantic priming in schizophrenia as a function of strength of association (or semantic distance between concepts in the semantic network). Thirty schizophrenia patients, without formal thought disorder, and twenty-nine healthy controls participated in a lexical decision task in which prime-target associative strength (strong, weak and not related) and stimulus-onset asynchrony (SOA: 250ms and 750ms) were manipulated. Patients and controls showed the same associative strength effect on RTs. In the short SOA condition priming effects were obtained for both strong and weak prime-target associative conditions. However in the long SOA priming was only significant for strongly associated pairs. This pattern of priming effects was similar in both groups, with higher priming on the short SOA and strong association conditions. Altogether results suggest that automatic semantic spreading activation is unimpaired in schizophrenia patients without formal thought disorder. These results are in line with the general evidence of impaired implicit priming observed only in patients with formal thought disorder. At the same time patients use context as controls to facilitate word processing. Finally, these findings evidence that, prime-target associative strength could moderate results in studies of semantic memory deficits in schizophrenia. PMID- 29024853 TI - Overexpression of constitutively active MAP3K7 in ameloblasts causes enamel defects of mouse teeth. AB - OBJECTIVE: Compelling evidence suggests that mitogen-activated protein kinases (Mapks) play an important role in amelogenesis. However, the role of transforming growth factor (TGF)-beta-activating kinase 1 (Tak1, Map3k7), which is a known upstream kinase of Mapks, during amelogenesis remains to be determined. The aim of this study was to investigate the possible involvement of Map3k7 in amelogenesis. DESIGN: We generated transgenic mice that produced constitutively active human MAP3K7 (caMAP3K7) under the control of amelogenin (Amelx) gene promoter. Radiography and micro-computed tomography (MUCT) analysis was used to detect the radio-opacity and density of the teeth. The enamel microstructure was observed with a scanning electron microscope. Histological analysis was used to observe the adhesion between ameloblasts and residual organic matrix of the enamel. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to analyze the expression of enamel matrix protein. RESULTS: The enamel of mandibular molars in caMAP3K7-overexpressing mice displayed pigmentation and a highly irregular structure compared with the wild type littermates. Teeth of transgenic animals underwent rapid attrition due to the brittleness of the enamel layer. The microstructure of enamel, normally a highly ordered arrangement of hydroxyapatite crystals, was completely disorganized. The gross histological appearances of ameloblasts and supporting cellular structures, as well as the expression of the enamel protein amelotin (Amtn) were altered by the overexpression of caMAP3K7. CONCLUSIONS: Our data demonstrated that protein expression, processing and secretion occurred abnormally in transgenic mice overexpressing caMAP3K7. The overexpression of caMAP3K7 had a profound effect on enamel structure by disrupting the orderly growth of enamel prisms. PMID- 29024855 TI - The relationship between schizotypal facets and conspiracist beliefs via cognitive processes. AB - This study sought to replicate previous work showing relationships between components of schizotypy and conspiracist beliefs, and extend it by examining the mediating role of cognitive processes. An international online sample of 411 women and men (mean age = 35.41 years) completed measures of the schizotypal facets of Odd Beliefs or Magical Thinking and Ideas of Reference, conspiracist beliefs, and cognitive processes related to need for cognition, analytic thinking, and cognitive insight. Path analysis confirmed the associations between both schizotypal facets and conspiracist beliefs in the present sample. Confirmatory evidence was found for the association between analytic thinking and conspiracist beliefs, and results also suggested an association between cognitive insight and conspiracist beliefs. Cognitive insight also mediated the link between Odd Beliefs or Magical Thinking and Ideas of Reference with conspiracist beliefs. However, analytic thinking provided a mediating link to conspiracy ideation for Odd Beliefs or Magical Thinking and not Ideas of Reference. Finally, there was an association between Odd Beliefs or Magical Thinking and need for cognition, but this path did not extend to conspiracist beliefs. These results suggest possible mediating roles for analytic thinking and self-certainty between schizotypy and conspiracist beliefs. PMID- 29024856 TI - Social cognition and African American men: The roles of perceived discrimination and experimenter race on task performance. AB - The Social Cognition Psychometric Evaluation (SCOPE) study consists of a battery of eight tasks selected to measure social-cognitive deficits in individuals with schizophrenia. The battery is currently in a multisite validation process. While the SCOPE study collects basic demographic data, more nuanced race-related factors might artificially inflate cross-cultural differences in social cognition. As an initial step, we investigated whether race, independent of mental illness status, affects performance on the SCOPE battery. Thus, we examined the effects of perceived discrimination and experimenter race on the performance of 51 non-clinical African American men on the SCOPE battery. Results revealed that these factors impacted social cognitive task performance. Specifically, participants performed better on a skills-based task factor in the presence of Black experimenters, and frequency of perceived racism predicted increased perception of hostility in negative interpersonal situations with accidental causes. Thus, race-related factors are important to identify and explore in the measurement of social cognition in African Americans. PMID- 29024857 TI - Controlled trial evaluation of exposure duration to negative air ions for the treatment of seasonal affective disorder. AB - This study evaluated the effectiveness of 30 or 60min of daily exposure to high density or to zero-density (placebo condition) negative air ions over 18 days on the symptoms of seasonal affective disorder (SAD) in 40 participants under controlled laboratory conditions. Exposure to high-density negative air ions was superior to zero-density negative air ions in alleviating depression and the atypical symptoms of SAD. Also, more subjects in the high-density negative air ions groups met two different clinical response criteria than did those in the zero-density groups. Within the high density treatment group, both the short and long daily exposure reduced SAD symptoms. Exposure to negative air ions produced no negative side effects, and no ozone was produced by the ion generators. In both the high-density negative air ions and zero-density negative air ions groups, a significant placebo effect was found for most clinical measures. Finally, for the high-density negative air ion groups, subjects with a morningness chronotype responded better to treatment with high-density negative air ions than did those with an eveningness chronotype. PMID- 29024858 TI - Motion modes of two self-propelled camphor boats on the surface of a surfactant containing solution. AB - HYPOTHESIS: The existence of a surface tension difference and a surface flow around self-propelled objects, such as camphor boats, has been confirmed by many studies. However, the interactions in the collective motion of several camphor boats have not been explicitly discussed. Here, a model system of two camphor boats was investigated for the first time from the viewpoint of surface tension and surface flow. EXPERIMENTS: The behavior of one fixed boat and one movable boat on a sodium dodecylsulfate aqueous solution in an oval track has been studied as a model system of two-body interactions. The surface tension around the movable boat was measured using the non-invasive, double-beam quasi-elastic laser scattering method. The Marangoni surface flow was quantitatively estimated using a mock boat in order to evaluate the net repulsive interaction between the two boats. FINDINGS: We succeeded in controlling the motion of the two camphor boats by varying the boat characteristics and the surfactant concentration. The balance/unbalance between the surface tension distribution and the surface flow around the boats was found to drive two different behavior modes: stationary and oscillatory. These results allow us to gain further insight into the dynamics of the interactions in the collective behavior of autonomous inanimate objects. PMID- 29024859 TI - Effect of calcination temperature of a copper ferrite synthesized by a sol-gel method on its structural characteristics and performance as Fenton catalyst to remove gallic acid from water. AB - A copper ferrite synthesized by a sol-gel combustion method was calcined at different temperatures up to 800 degrees C, determining changes in its structural characteristics and magnetic measurements and studying its catalytic performance in gallic acid removal by Fenton reaction. The main objective was to study the effect of the calcination temperature of copper ferrite on its crystalline phase formation and transformation, activity and metal ion leaching. The cubic-to tetragonal transformation of the spinel occurred via its reaction with the CuO phase, displacing Fe3+ ions in B (octahedral) sites out of the spinel structure by the following reaction: 2Fe3+B+3CuO->Fe2O3+3Cu2+B. The catalysts showed superparamagnetic or substantial superparamagnetic behaviour. At higher calcination temperatures, catalyst activity was lower, and Cu ion leaching was markedly decreased. There was no Fe ion leaching with any catalyst. The as prepared catalyst showed better catalytic performance than a commercial copper ferrite. Leached Cu ions acted as homogeneous catalysts, and their contribution to the overall removal mechanism was examined. Cu2O present in the as-prepared catalysts made only a small contribution to their activity. Finally, the reutilization of various catalysts was studied by performing different catalytic cycles. PMID- 29024860 TI - Facile synthesis N-doped hollow carbon spheres from spherical solid silica. AB - Nitrogen-doped core/shell carbon nanospheres (NHCS are prepared and their capability as an anode material in lithium-ion batteries is investigated. The synthesis methodology is based on a fast template route. The resulting molecular nanostructures are characterized by X-ray diffraction, transmission electron microscopy, thermal analysis, and nitrogen adsorption/desorption measurement as well as by cyclic voltammetry and galvanostatic cycling. The core/shell structure provides a rapid lithium transport pathway and boasts a highly reversible capacity. For undoped HCS the BET specific surface area is 623m2/g which increases up to 1000m2/g upon N-doping. While there is no significant effect of N doping on the electrochemical performance at small scan rates, the doped NHCS shows better specific capacities than the pristine HCS at elevated rates. For instance, the discharge capacities in the 40th cycle, obtained at 1000mA/g, amount to 170mAh/g and 138mAh/g for NHCS and HCS, respectively. PMID- 29024861 TI - Tunable photoluminescence of MoS2 quantum dots passivated by different functional groups. AB - Recently, transitional metal dichalcogenides quantum dots have attracted much interest as a potential candidate for the application of fluorescent materials. However, little work has been done on tuning their band gap by varying functional groups. Here, we report a band-gap tunability of 1eV in the MoS2 quantum dots (QDs) modified by different functional groups. In our results, it has also been confirmed that a tunable band gap in the MoS2 QDs can be achieved by monotonically varying the concentration of a functional group. A mechanism has also been proposed to explain the enhanced photoluminescence behaviors in the functionalized MoS2 QDs. Our work provides a general guideline to develop other semiconducting QDs to be future impressive fluorescent materials. PMID- 29024862 TI - 4-phenylbutyrate and valproate treatment attenuates the progression of atherosclerosis and stabilizes existing plaques. AB - BACKGROUND AND AIMS: Recent evidence suggests that endoplasmic reticulum (ER) stress signaling through glycogen synthase kinase (GSK)-3alpha/beta is involved in the activation of pro-atherosclerotic processes. In this study, we examined the effects of small molecules that interfere with ER stress-GSK3alpha/beta signaling on the progression and regression of atherosclerosis in a mouse model. METHODS: To examine atherosclerotic progression, low-density lipoprotein receptor deficient (Ldlr-/-) mice were placed on a high-fat diet (HFD) and treated with the chemical chaperone, 4-phenylbutyrate (4PBA, 3.8 g/L drinking water), or the GSK3alpha/beta inhibitor, valproate (VPA, 625 mg VPA/kg diet), for 10 weeks. To examine potential effects on atherosclerotic regression, 4 week old Ldlr-/- mice were placed on a HFD for 16 weeks. Subsets of mice were harvested at this time or switched to a chow (low fat) diet, or a chow diet with 4PBA or VPA treatment for 4 weeks. RESULTS: In the progression model, the 4PBA- and VPA-treated mice had significantly reduced lesion and necrotic core size. Treatments had no effect on metabolic parameters, including plasma and hepatic lipid levels, or plaque composition. In the regression model, mice with 4PBA or VPA treatment showed no alterations in lesion size, but the lesions had significantly smaller necrotic cores, increased vascular smooth muscle cell content, and increased collagen content. These features are consistent with more stable plaques. CONCLUSIONS: The pharmacological attenuation of ER stress or inhibition of GSK3alpha/beta impedes the development of atherosclerosis in Ldlr-/- mice and appears to promote the stabilization of existing lesions. PMID- 29024863 TI - Environmental tobacco smoke and peripheral arterial disease: A review. AB - BACKGROUND AND AIMS: Despite worldwide reductions in active smoking, non-smokers continue to be exposed to environmental tobacco smoke, especially at home or workplace. There is a well-recognised association between active smoking and peripheral arterial disease, however, a relationship to environmental tobacco smoke exposure is less substantiated. The aims of this paper are to review the literature regarding the association between environmental tobacco smoke and peripheral arterial disease and identify the public health implications of the findings. METHODS: Selected electronic databases (Medline, EMBASE, CINAHL, PsychINFO and Scopus) were searched for studies published up to August 2017. Key words and inclusion/exclusion criteria applied. A manual search of reference lists of studies selected for review was also performed. RESULTS: Of the initial 150 studies identified, 12 met inclusion criteria for review. Three studies showed a positive association between environmental tobacco smoke exposure and definitive diagnosis of peripheral arterial disease, 6 studies demonstrated a positive association with features of vascular injury, and 3 studies found no significant positive or negative association. CONCLUSIONS: An association between exposure to environmental tobacco smoke and development of peripheral arterial disease or clinically significant arterial injury in non-smokers is supported by moderate quality evidence in the literature. Larger, longitudinal observational studies addressing current limitations, including sources of bias, inconsistency and imprecision, are needed to provide more robust and consistent evidence. Regardless, evidence of potential detrimental impacts supports ongoing restrictions on freedom to smoke in public areas, including the workplace, and has implications for those exposed in the home environment. PMID- 29024864 TI - Association between serum uric acid level and renal arteriolar hyalinization in individuals without chronic kidney disease. AB - BACKGROUND AND AIMS: Recent studies have reported an association between serum uric acid (SUA) and renal arteriolar changes in patients with chronic kidney disease (CKD). However, the association in individuals without CKD remains unclear. In this study, we investigated the relationship between SUA and renal arteriolar lesions in individuals without CKD from our living kidney donor cohort. METHODS: Between January 2006 and May 2016, 393 living kidney donors underwent "time-zero" biopsy at Kyushu University Hospital. Patients were divided into sex-specific quartiles of SUA before donation: Q1, Q2, Q3, and Q4 (male: <5.2,5.2-5.8,5.9-6.4, and >=6.5 mg/dL, female: <3.8,3.8-4.3,4.4-5.0, and >=5.1 mg/dL). Renal arteriolar hyalinization and wall thickening were assessed using a semiquantitative grading system. Predictive performance was compared between models with and without SUA by calculating the net reclassification improvement (NRI). RESULTS: In total, 158 (40.2%) patients had arteriolar hyalinization, and 148 (37.6%) had wall thickening. High SUA was significantly associated with arteriolar hyalinization in multivariable logistic analysis (odds ratio [OR] per 1-mg/dL increase in SUA, 1.24; 95% confidence interval [CI], 1.00-1.53; p = 0.048. OR for Q4 vs. Q2, 2.22; 95% CI, 1.17-4.21; p = 0.01). We found no association between SUA and wall thickening. When SUA was incorporated into a predictive model with conventional atherosclerotic factors, the NRI was 0.21 (p = 0.04). CONCLUSIONS: High SUA was an independent risk factor for arteriolar hyalinization in individuals without CKD. SUA provided additional predictive value beyond conventional atherosclerotic factors in predicting arteriolar hyalinization. PMID- 29024867 TI - Management of generalized seizures after face allotransplantation: The first clinical report. PMID- 29024865 TI - Impaired kidney function is associated with intraplaque hemorrhage in patients undergoing carotid endarterectomy. AB - BACKGROUND AND AIMS: Previously, we showed that patients undergoing carotid endarterectomy have an increased risk for major atherosclerotic events in the presence of moderate or poor kidney function. Acceleration of vascular inflammatory responses is considered to be causally involved in progression of atherogenesis and poor outcome in chronic kidney disease patients. The association between kidney function and plaque composition has not been thoroughly investigated yet. The aim of this study was to investigate the association between kidney function and atherosclerotic plaque composition in patients undergoing carotid endarterectomy. METHODS: Atherosclerotic plaques, harvested from 1796 patients who underwent carotid endarterectomy, were immunohistochemically stained for macrophages, smooth muscle cells, calcifications, collagen, microvessels, lipid core size and intraplaque hemorrhage. Cytokines were measured in plaque and plasma and associated with kidney function. Quantitative proteomics were performed on 40 carotid plaques and associated with kidney function. RESULTS: Decreased kidney function was associated with increased odds ratio of intraplaque hemorrhage, OR 1.15 (95% CI; 1.02-1.29 (p = 0.024)) and increased odds ratio of fibrous-atheromatous plaques (plaques with lipid core presenting more than 10% of total plaque surface) OR 1.21 (95% CI; 1.07-1.38 (p = 0.003)) per decrease of 20 points in eGFR. Proteomics revealed that decreased kidney function was associated with upregulation of the classical pathway of the complement system and the intrinsic pathway of the coagulation system. CONCLUSIONS: Decreased kidney function was associated with plaque hemorrhage but not with inflammatory plaque characteristics. Our data suggests that other pathways than the inflammation pathway are involved in plaque vulnerability and poor outcome in patients with decreased kidney function. PMID- 29024866 TI - Diclofenac but not celecoxib improves endothelial function in rheumatoid arthritis: A study in adjuvant-induced arthritis. AB - BACKGROUND AND AIMS: We aimed at investigating the effect of celecoxib (COX-2 selective inhibitor) and diclofenac (non-selective COX inhibitor) on endothelial function, and at identifying the underlying mechanisms in adjuvant-induced arthritis (AIA). METHODS: At the first signs of AIA, diclofenac (5 mg/kg twice a day, i.p), celecoxib (3 mg/kg/day, i.p) or saline (Vehicle) was administered for 3 weeks. Endothelial function was studied in aortic rings relaxed with acetylcholine (Ach) with or without inhibitors of NOS, arginase, EDHF and superoxide anions (O2- degrees ) production. Aortic expression of eNOS, Ser1177 phospho-eNOS, COX-2, arginase-2, p22phox and p47phox was evaluated by Western blotting analysis. Arthritis scores, blood pressure, glycaemia and serum ADMA levels were measured. RESULTS: Diclofenac and celecoxib significantly reduced arthritis score to the same extent (p<0.05). As compared to vehicle-treated AIA, celecoxib did not change whereas diclofenac improved endothelial function (p<0.05) through increased EDHF production, decreased arginase activity and expression, decreased superoxide anions production and expression of p22phox and p47phox. Diclofenac but not celecoxib significantly enhanced blood pressure and serum ADMA levels. Glycaemia was unchanged by both treatments. CONCLUSIONS: Our study reveals that the effect of NSAIDs on endothelial function cannot be extrapolated from their impact on arthritis severity and suggest that changes in blood pressure and plasma ADMA levels may not be useful to predict CV risk of NSAIDs in RA. PMID- 29024868 TI - Introduction of non-invasive prenatal testing as a first-tier aneuploidy screening test: A survey among Dutch midwives about their role as counsellors. AB - In 2014, non-invasive prenatal testing (NIPT) for trisomies 21, 18 and 13 was added to the Dutch prenatal screening program as part of the TRIDENT study. Most (85%) pregnant Dutch women are counselled for prenatal aneuploidy screening by primary care midwives. This will remain when NIPT is implemented as a first-tier screening test. We therefore investigated midwife counsellors': 1) Knowledge about NIPT; 2) Attitudes towards NIPT as first-tier screening test; and 3) Experiences with informing clients about NIPT. Between April-June 2015, an online questionnaire to assess knowledge about NIPT, attitudes towards NIPT, and experiences with NIPT was completed by 436 Dutch primary care midwives. We found that 59% midwives answered >=7 of 8 knowledge questions correctly. Continuing professional education attendance and more positive attitudes towards prenatal screening for Down syndrome were positively associated with the total knowledge score (beta = 0.261; p = 0.007 and beta = 0.204; p = 0.015, respectively). The majority (67%) were in favor of replacing First trimester Combined Test with NIPT, although 41% preferred to maintain a nuchal translucency measurement alongside NIPT. We conclude that midwives demonstrated solid knowledge about NIPT that may still be improved in some areas. Dutch midwives overwhelmingly support the integration of NIPT as a first-tier screening test. PMID- 29024869 TI - Mapping midwifery and obstetric units in England. AB - OBJECTIVE: to describe the configuration of midwifery units, both alongside&free standing, and obstetric units in England. DESIGN: national survey amongst Heads of Midwifery in English Maternity Services SETTING: National Health Service (NHS) in England PARTICIPANTS: English Maternity Services Measurements descriptive statistics of Alongside Midwifery Units and Free-standing Midwifery Units and Obstetric Units and their annual births/year in English Maternity Services FINDINGS: alongside midwifery units have nearly doubled since 2010 (n = 53-97); free-standing midwifery units have increased slightly (n = 58-61). There has been a significant reduction in maternity services without either an alongside or free standing midwifery unit (75-32). The percentage of all births in midwifery units has trebled, now representing 14% of all births in England. This masks significant differences in percentage of all births in midwifery units between different maternity services with a spread of 4% to 31%. KEY CONCLUSIONS: In some areas of England, women have no access to a local midwifery unit, despite the National Institute for Health&Clinical Excellence (NICE) recommending them as an important place of birth option for low risk women. The numbers of midwifery units have increased significantly in England since 2010 but this growth is almost exclusively in alongside midwifery units. The percentage of women giving birth in midwifery units varies significantly between maternity services suggesting that many midwifery units are underutilised. IMPLICATIONS FOR PRACTICE: Both the availability and utilisation of midwifery units in England could be improved. PMID- 29024870 TI - Comparable effectiveness and immunomodulatory actions of oxaliplatin and cisplatin in electrochemotherapy of murine melanoma. AB - Interest in platinum-based chemotherapeutics such as oxaliplatin (OXA) and cisplatin (CDDP) has been reinvigorated by their newly described impacts on tumor specific immune responses. In addition to CDDP, OXA is frequently used to treat cancers. Based on the characteristics of OXA, which are similar to those of CDDP, and the presumably more pronounced immunomodulatory effect of OXA, OXA is a candidate for electrochemotherapy (ECT). We compared the effectiveness of intratumoral ECT with OXA to that of ECT with CDDP in murine B16F10 melanoma to determine the equieffective dose. Special attention was given to the elicitation of immunogenic cell death and local immune response. Based on the in vitro and in vivo results pertaining to effectiveness and drug uptake in cells and tumors, ECT with OXA is as effective as ECT with CDDP when the OXA dose is increased 1.6 fold. Exposure of melanoma cells to ECT induces immunogenic cell death when either OXA or CDDP is used, which correlates with a comparable increase in lymphocyte infiltration into tumors after ECT with either OXA or CDDP. Based on these results, OXA is a valid platinum-based drug for use with ECT, and the effectiveness of ECT with OXA is comparable to that of the well-established ECT with CDDP. Furthermore, both drugs display equal and specific immune responses following ECT. PMID- 29024872 TI - A (salicylaldiminato)Pt(II) complex with dimethylpropylene linkage: Synthesis, structural characterization and antineoplastic activity. AB - A novel (salicylaldiminato)Pt(II) complex with two different molecular structures, one solventless ((salicylaldiminato)Pt(II)) 1 and another one solvated ((salicylaldiminato)Pt(II). C2H5OH), 1.C2H5OH, has been obtained by the reaction of a salen ligand with [PtCl2(DMSO)2] in ethanol at room temperature. The asymmetric unit of solventless 1 contains 9 such complex molecules whereas 1.C2H5OH contains 2 complex molecules and one ethanol molecule. To get insights into the structure and bonding, DFT and TDFT calculation have been carried out. The electronic transition band at 408.0nm (calc. 424.3nm) is assigned to HOMO >LUMO (96%) excitation. The calculated NMR chemical shifts are interrelated with the experimental results, and a very slight effect of solvent was noticed on NMR chemical shifts. A MTT assay and the real-time cell monitoring xCELLigence system revealed that the 1 has significant potential to suppress cell viability and cell proliferation in human HT-29 and SW620 colorectal cancer cell lines. PMID- 29024871 TI - Brain energetics during the sleep-wake cycle. AB - Brain activity during wakefulness is associated with high metabolic rates that are believed to support information processing and memory encoding. In spite of loss of consciousness, sleep still carries a substantial energy cost. Experimental evidence supports a cerebral metabolic shift taking place during sleep that suppresses aerobic glycolysis, a hallmark of environment-oriented waking behavior and synaptic plasticity. Recent studies reveal that glial astrocytes respond to the reduction of wake-promoting neuromodulators by regulating volume, composition and glymphatic drainage of interstitial fluid. These events are accompanied by changes in neuronal discharge patterns, astrocyte neuron interactions, synaptic transactions and underlying metabolic features. Internally-generated neuronal activity and network homeostasis are proposed to account for the high sleep-related energy demand. PMID- 29024873 TI - Photodynamic therapy for Schistosoma mansoni: Promising outcomes. AB - The purpose of this study was to assess, for the very first time, the effects of photodynamic therapy (PDT) on Schistosoma mansoni in vitro by measuring reactive oxygen species (ROS) generation throughout the treatment, as well as the behavior of the parasites (mating, motility and contraction/shortening), and damage to their tegument and excretory systems. The parasites were divided into 4 groups: control, photosensitizer, laser and PDT. Light irradiation was delivered with an InGaAlP low-level laser device operating at 660nm, with 40mW and 100J/cm2. For PDT, different toluidine blue dye (TBO) concentrations and times of exposure were utilized. Interestingly, TBO-mediated PDT was able to kill S. mansoni (P<0.001) due to the significant amount of ROS released that inflicted damages in the tegument and excretory system, as well as contraction and cessation of motility. In addition, males of S. mansoni were shown to be more sensitive to PDT if compared to their corresponding females when the optimal TBO concentration of 31.2MUL was considered (P=0.0126). PDT presents two major advantages: not inducing microbial resistance and also lacking adverse effects. Therefore, PDT may become a promising therapeutic alternative for schistosomiasis in the near future, especially for cases of allergy and resistance to praziquantel. PMID- 29024874 TI - Electrical impedance myography changes after incomplete cervical spinal cord injury: An examination of hand muscles. AB - OBJECTIVE: This study was to apply the newly developed electrical impedance myography (EIM) technique to examine hand muscles in patients with an incomplete cervical spinal cord injury (SCI). METHODS: EIM was performed on the thenar, hypothenar, and first dorsal interosseous (FDI) muscles of SCI (n=16) and age matched healthy control (n=18) subjects. By sending low intensity and high frequency current through the skin and measuring the consequent voltage, EIM estimates the major impedance parameters, which include resistance (R), reactance (X) and phase angle (theta). RESULTS: The SCI group had lower reactance and phase angle (p<0.0001) as compared to the control group in all three muscles, and lower resistance in the thenar muscle (p<0.05). The SCI group also demonstrated a smaller anisotropy in resistance (p<0.0001) and larger anisotropy in phase angle (p<0.05) compared to those from healthy controls. CONCLUSION: The reduced reactance and phase angle of paralyzed muscles could be due tochanges of membrane integrity and fat infiltration, whereas the change in the anisotropy may reflect the rearrangement of muscle fiber geometry. SIGNIFICANCE: The EIM provides a quick and convenient tool for examination of muscle alterations after SCI. PMID- 29024876 TI - Design of a dielectric resonator receive array at 7 Tesla using detunable ceramic resonators. AB - Ceramic-based dielectric resonators can be used for high frequency magnetic resonance imaging and microscopy. When used as elements in a transmit array, the intrinsically low inter-element coupling allows flexibility in designing different geometric arrangements for different regions-of-interest. However, without being able to detune such resonators, they cannot be used as elements in a receive-only array. Here, we propose and implement a method, based on mode disruption, for detuning ceramic-based dielectric resonators to enable them to be used as receive-only elements. PMID- 29024875 TI - Social networking online to recover from opioid use disorder: A study of community interactions. AB - BACKGROUND: Social media has increasingly become a venue for health discourse and support, particularly for vulnerable individuals. This study examines user generated content of an online Reddit community targeting individuals recovering from opiate addiction. METHODS: 100 Reddit posts and their comments were collected from the online community on August 19, 2016. Posts were qualitatively coded for opioid use disorder (OUD) criteria as outlined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), as well as other common themes. Comments were coded for expression of distinct therapeutic factors (i.e., instillation of hope, universality, imparting information, and altruism). All posts and comments were coded for addiction phase of the author (i.e., using, withdrawing, recovering). RESULTS: 73 unique usernames authored the 100 posts. Among the 73 usernames, 33% (24/73) described enough symptoms in their posts to meet DSM-V criteria for OUD (16/73 or 22% mild severity, 7/73 or 10% moderate severity, and 1/73 or 1% high severity. Among the 100 posts, advice was requested in 43% (43/100) of the posts and support was sought in 24% (24/100) of the posts. There were 511 comments made on the 100 posts, nearly all of which contained at least one distinct therapeutic factor (486/511, 95%) with altruism being the most common (341/511, 67%). CONCLUSIONS: This research provides validity to the supportive content generated on an online recovery-oriented community, while also revealing discussions of self-reported struggles with OUD among group members. Future research should explore the feasibility of incorporating social media based peer support into traditional addiction treatments. PMID- 29024877 TI - Zernike phase contrast in high-energy x-ray transmission microscopy based on refractive optics. AB - The current work represents the first implementation of Zernike phase contrast for compound refractive lens based x-ray microscopy, and also the first successful Zernike phase contrast experiment at photon energies above 12 keV. Phase contrast was achieved by fitting a compound refractive lens with a circular phase plate. The resolution is demonstrated to be sub-micron, and can be improved using already existing technology. The possibility of combining the technique with polychromatic radiation is considered, and a preliminary test experiment was performed with positive results. PMID- 29024878 TI - Impact of outlier status on critical care patient outcomes: Does boarding medical intensive care unit patients make a difference? AB - PURPOSE: To evaluate the impact of outlier status, or the practice of boarding ICU patients in distant critical care units, on clinical and utilization outcomes. MATERIALS AND METHODS: Retrospective observational study of all consecutive admissions to the MICU service between April 1, 2014-January 3, 2016, at an urban university hospital. RESULTS: Of 1931 patients, 117 were outliers (6.1%) for the entire duration of their ICU stay. In adjusted analyses, there was no association between outlier status and hospital (OR 1.21, 95% CI 0.72-2.05, p=0.47) or ICU mortality (OR 1.20, 95% CI 0.64-2.25, p=0.57). Outliers had shorter hospital and ICU lengths of stay (LOS) in addition to fewer ventilator days. Crossover patients who had variable outlier exposure also had no increase in hospital (OR 1.61; 95% CI 0.80-3.23; p=0.18) or ICU mortality (OR 1.05; 95% CI 0.43-2.54; p=0.92) after risk-adjustment. CONCLUSIONS: Boarding of MICU patients in distant units during times of bed nonavailability does not negatively influence patient mortality or LOS. Increased hospital and ventilator utilization observed among non-outliers in the home unit may be attributable, at least in part, to differences in patient characteristics. Prospective investigation into the practice of ICU boarding will provide further confirmation of its safety. PMID- 29024879 TI - Single intervention for a reduction in portable chest radiography (pCXR) in cardiovascular and surgical/trauma ICUs and associated outcomes. AB - PURPOSE: Studies suggest that "on-demand" radiography is equivalent to daily routine with regard to adverse events. In these studies, provider behavior is controlled. Pragmatic implementation has not been studied. MATERIALS AND METHODS: This was a quasi-experimental, pre-post intervention study. Medical directors of two intervention ICUs requested pCXRs be ordered on an on-demand basis at one time point, without controlling or monitoring behavior or providing follow-up. RESULTS: A total of 11,994 patient days over 18months were included. Combined characteristics: Age: 56.7, 66% male, 96% survival, APACHE II 14 (IQR: 11-19), mechanical ventilation (MV) (occurrences)/patient admission: mean 0.7 (SD: 0.6; range: 0-5), duration (hours) of MV: 21.7 (IQR: 9.8-81.4) and ICU LOS (days): 2.8 (IQR: 1.8-5.6). Average pCXR rate/patient/day before was 0.93 (95% CI: 0.89 0.96), and 0.73 (95% CI: 0.69-0.77) after. Controlling for severity, daily pCXR rate decreased by 21.7% (p<0.001), then increased by about 3%/month (p=0.044). There was no change in APACHE II, mortality, and occurrences or duration of MV, unplanned re-intubations, ICU LOS. CONCLUSIONS: In critically ill adults, pCXR reduction can be achieved in cardiothoracic and trauma/surgical patients with a pragmatic intervention, without adversely affecting patient care, outside a controlled study. PMID- 29024880 TI - Experience with and amount of postpartum maternity care: Comparing women who rated the care they received from the maternity care assistant as 'good' or 'less than good care'. AB - OBJECTIVE: The postpartum period is an important time in the lives of new mothers, their children and their families. The aim of postpartum care is 'to detect health problems of mother and/or baby at an early stage, to encourage breastfeeding and to give families a good start' (Wiegers, 2006). The Netherlands maternity care system aims to enable every new family to receive postpartum care in their home by a maternity care assistant (MCA). In order to better understand this approach, in this study we focus on women who experienced the postpartum care by the MCA as 'less than good' care. Our research questions are; among postpartum women in the Netherlands, what is the uptake of MCA care and what factors are significantly associated with women's rating of care provided by the MCA. Design and setting This study uses data from the 'DELIVER study', a dynamic cohort study, which was set up to investigate the organization, accessibility and quality of primary midwifery care in the Netherlands. Participants In the DELIVER population 95.6% of the women indicated that they had received postpartum maternity care by an MCA in their home. We included the responses of 3170 women. MEASUREMENTS AND FINDINGS: To assess the factors that were significantly associated with reporting 'less than good (postpartum) care' by the MCA, a full cases backward logistic regression model was built using the multilevel approach in Generalized Linear Mixed Models. FINDINGS: The mean rating of the postpartum care by the MCA was 8.8 (on a scale from 1-10), and 444 women (14%) rated the postpartum maternity care by the MCA as 'less than good care'. In the full cases multivariable analysis model, odds of reporting 'less than good care' by the MCA were significantly higher for women who were younger (women 25-35 years had an OR 1.32, CI 0.96-1.81 and women 35 years), multiparous (OR 1.27, CI 1.01-1.60) and had a higher level of education (women with a middle level had an OR 1.84,CI 1.22 2.79, and women with a high level of education had an OR 2.11, CI 1.40-3.18 compared to women with a low level of education). Odds of reporting 'less than good care' were higher for women who, received the minimum amount of hours (OR 1.86, CI 1.45-2.38), in their opinion received not enough or too many hours maternity care assistance (OR 1.47, CI 1.01-2.15 and OR 5.15, CI 3.25-8.15, respectively), received care from two or more different MCAs (2 MCAs OR 1.61 CI 1.24-2.08, >=3 MCAs OR 3.01, CI 1.98-4.56 compared to 1 MCA) and rated the care of the midwife as less than good care (OR 4.03, CI 3.10-5.25) . The odds of reporting 'less than good care' were lower for women whose reason for choosing maternity care assistance was to get information and advice (OR 0.52, CI 0.41 0.65). KEY CONCLUSIONS: We conclude that (the postpartum) MCA care is well utilised, and highly rated by most women. IMPLICATIONS FOR PRACTICE: The approach to care in the Netherlands addresses the needs as outlined by NICE and WHO. Although no data exists around the impact of use on maternal infant outcomes, this approach might be useful in other jurisdictions. MCA care might be improved if the hours of MCA care were tailored, and care by multiple MCAs minimised. PMID- 29024881 TI - A pilot randomised controlled trial exploring the effects of antenatal reflexology on labour outcomes. AB - OBJECTIVE: to investigate the effects of antenatal reflexology on labour outcomes. DESIGN: secondary analysis of a pilot three-armed randomised controlled trial conducted between July 2012 and September 2013. SETTING: a large UK inner city hospital maternity department. PARTICIPANTS: ninety primiparous women with a singleton pregnancy experiencing low back and / or pelvic girdle pain. INTERVENTIONS: six weekly 30-minute reflexology treatments compared to sham (footbath) treatments or usual antenatal care only. MEASUREMENTS: labour outcome data including labour onset, duration of the second stage of labour, epidural and Entonox usage, and mode of delivery. Participant feedback was collected prior to each treatment. FINDINGS: labour outcomes were collected for 61 women (95.3%) who completed the study. The second stage of labour duration data, available for 42 women (62.5%) who had vaginal births, showed a mean reduction of 44minutes in the reflexology group (73.56minutes; SD= 53.78) compared to the usual care (117.92minutes; SD=56.15) (p<0.05) and footbath groups (117.4minutes; SD=68.54) (p=0.08). No adverse effects were reported. KEY CONCLUSIONS: in this trial antenatal reflexology reduced labour duration for primiparous women who had experienced low back and/ or pelvic girdle pain during their pregnancy, compared with usual care and footbaths. IMPLICATIONS FOR PRACTICE: reflexology is suitable for use during pregnancy, is safe and enjoyable and may reduce labour duration. Midwives may wish to recommend reflexology to promote normal childbirth and facilitate women centred care. TRIAL REGISTRATION: this trial was listed with the International Standard Randomised Controlled Trial Number Register (ISRCTN26607527). PMID- 29024882 TI - Quantitative mapping of elements in basil leaves (Ocimum basilicum) based on cesium concentration and growth period using laser ablation ICP-MS. AB - Quantitative elemental mapping of metallic pollutants in sweet basil was studied by laser ablation (LA)-ICP-MS. For this, the sweet basil was cultivated in Hoagland nutrient solution spiked with 100 and 1000 ng mL-1 of Cs for 10-60 days. Then, the Cs distribution in collected leaves was determined by LA-ICP-MS using lab-synthesized standard pellets based on NIST 1573a tomato leaves. For comparison, S, Ca, and K were also simultaneously determined in this measurement with a13C+ signal from the leaves as an internal standard. The obtained calibration curves showed linear coefficient of determination (R2) of 0.991 for K and 0.999 for Cs. The concentration of Cs measured in the basil leaves increased with growth period and pollutant concentration, and accumulation followed the order of leaf margin, petiole, midrib, and veins. Although no visible symptom was detected, significant suppression of the growth rate was observed due to the presence of high-concentration Cs. The experimental model demonstrated herein showed potential for studying the influence of radioactive pollutants on plants and other organisms in the food chain. PMID- 29024883 TI - Emerging organic pollutants in the vadose zone of a soil aquifer treatment system: Pore water extraction using positive displacement. AB - Trace organic compounds in effluents, water streams and aquifers are amply reported. However, the mobile pool of Emerging Organic Contaminants (EOCs) in the deep parts of the vadose zone is hard to estimate, due to difficulties in extraction of sufficient quantity of pore water. Here, we present a new methodology for depth profiling of EOCs in pore water by Positive Displacement Extraction (PDE): Pore water extraction from unsaturated soil samples is carried out by withdrawal of soil cores by direct-push drilling and infiltrating the core by organics free water. We show that EOC concentrations in the water eluted in the plateau region of the inverse breakthrough curve is equal to their pore water concentrations. The method was previously validated for DOC extraction, and here the scope of the methodology is extended to pore water extraction for organic pollutants analysis. Method characteristics and validation were carried out with atrazine, simazine, carbamazepine, venlafaxine, O-desmethylvenlafaxine and caffeine in the concentration range of several ng to several MUg/liter. Validation was carried out by laboratory experiments on three different soils (sandy, sandy-clayey and clayey). Field studies in the vadose zone of a SAT system provided 27 m deep EOC profiles with less than 1.5 m spatial resolution. During the percolation treatment, carbamazepine remained persistent, while the other studied EOCs were attenuated to the extent of 50-99%.The highest degradation rate of all studied EOCs was in the aerobic zone. EOC levels based on PDE and extraction by centrifugation were compared, showing a positive bias for centrifugation. PMID- 29024884 TI - Adsorption-desorption and hysteresis phenomenon of tebuconazole in Colombian agricultural soils: Experimental assays and mathematical approaches. AB - The adsorption-desorption, hysteresis phenomenon, and leachability of tebuconazole were studied for Inceptisol and Histosol soils at the surface (0-10 cm) and in the subsurface (40-50 cm) of an agricultural region from Colombia by the batch-equilibrium method and mathematical approaches. The experimental Kfa and Kd (L kg-1) values (7.9-289.2) decreased with depth for the two Inceptisols and increased with depth for the Histosol due to the organic carbon content, aryl and carbonyl carbon types. Single-point and desorption isotherms depended on adsorption reversibility and suggested that tebuconazole showed hysteresis; which can be adequately evaluated with the single-point desorption isotherm and the linear model using the hysteresis index HI. The most suitable mathematical approach to estimate the adsorption isotherms of tebuconazole at the surface and in the subsurface was that considering the combination of the n-octanol-water partition coefficient, pesticide solubility, and the mass-balance concept. Tebuconazole had similar moderate mobility potential as compared with the values of other studies conducted in temperate amended and unamended soils, but the risk of the fungicide to pollute groundwater sources increased when the pesticide reached subsurface soil layers, particularly in the Inceptisols. PMID- 29024885 TI - Degradation of Reactive Black 5 by electrochemical oxidation. AB - Degradation of commercial grade Reactive Black 5 (RB5) azo dye by chemical and electrochemical treatment was examined using a dimensionally stable anode and stainless steel cathodes as electrode materials, with NaCl as supporting electrolyte. The electrochemical treatment was compared to the chemical treatment with hypochlorite generated by electrolysis. The compounds present in the commercial grade RB5 azo dye and the products of its electrochemical degradation were separated using ion-pairing high performance liquid chromatography on reversed phase. The separated species were detected by diode array detector and electrospray ionization mass spectrometry. A suitable ion-pairing reversed phase HPLC-MS method with electrospray ionization for the separation and identification of the components was developed. The accurate mass of the parent and fragment ions were used in the determination of the empirical formulas of the components using the first-order mass spectra. Structural formulas of degradation products were proposed using these information and principles of organic chemistry and electrochemistry. PMID- 29024886 TI - A case study to identify priority cytostatic contaminants in hospital effluents. AB - This study analyses the presence of 17 cytostatic agents from seven different groups, based on their different mechanisms of action, in the effluent from a medium-sized hospital located in eastern Spain. Analysis of the compounds found in the effluents studied involved solidphase extraction (SPE) coupled on-line to a high performance liquid chromatograph tandem mass spectrometer (HPLC-MS/MS). The environmental risk of the compounds studied was then assessed by calculating the hazard quotient (HQ), combining the measured environmental concentrations (MECs) with dose-response data based on the predicted no effect concentrations (PNECs). In addition, the environmental hazard associated was evaluated in accordance with their intrinsic characteristics by calculating the PBT (Persistence Bioaccumulation Toxicity) index. The results of this study showed the presence of seven of the 17 compounds analysed in a range of between 25 and 4761 ng/L. The highest concentrations corresponded to ifosfamide (58-4761 ng/L), methotrexate (394-4756 ng/L) and cyclophosphamide (46-3000 ng/L). Assessment of the environmental hazard showed that the three hormonal agents (tamoxifen and its metabolites endoxifen and hydroxytamoxifen) exhibited a maximum PBT value of 9 due to their inherent harm to the environment resulting from their characteristics of persistence, bioaccumulation and toxicity. A combined evaluation of the risk and environmental hazard showed that three of the 17 compounds studied, namely, ifosfamide, imatinib and irinotecan, all of which exhibited HQ values higher than 10 and PBT indices of 6, indicative of a particularly high potential to harm the environment, deserve special attention. PMID- 29024887 TI - Simultaneous removal of NO and SO2 using vacuum ultraviolet light (VUV)/heat/peroxymonosulfate (PMS). AB - Simultaneous removal process of SO2 and NO from flue gas using vacuum ultraviolet light (VUV)/heat/peroxymonosulfate (PMS) in a VUV spraying reactor was proposed. The key influencing factors, active species, reaction products and mechanism of SO2 and NO simultaneous removal were investigated. The results show that vacuum ultraviolet light (185 nm) achieves the highest NO removal efficiency and yield of and under the same test conditions. NO removal is enhanced at higher PMS concentration, light intensity and oxygen concentration, and is inhibited at higher NO concentration, SO2 concentration and solution pH. Solution temperature has a double impact on NO removal. CO2 concentration has no obvious effect on NO removal. and produced from VUV-activation of PMS play a leading role in NO removal. O3 and .O produced from VUV-activation of O2 also play an important role in NO removal. SO2 achieves complete removal under all experimental conditions due to its very high solubility in water and good reactivity. The highest simultaneous removal efficiency of SO2 and NO reaches 100% and 91.3%, respectively. PMID- 29024888 TI - Synthetic plant glycans. AB - For more than a century the primary carbon source for the production of fuels, chemicals and many materials has been fossil resources. Recently, plant polysaccharides from non-food biomass have emerged as a promising renewable alternative that may displace a significant fraction of petroleum-derived products. As a food source, plant polysaccharides can provide beneficial effects on the human immune system in the form of dietary fiber. Despite the strong impact of plant glycans on society and human health, their chemical synthesis remains largely unexplored compared to the synthesis of mammalian and bacterial glycans. Synthetic glycans such as described in this review provide an important toolbox for studying the role of carbohydrates in plant biology and their interaction with human health. PMID- 29024889 TI - Unitary and dual models of phenomenal consciousness. AB - There is almost unanimous consensus among the theorists of consciousness that the phenomenal character of a mental state cannot exist without consciousness. We argue for a reappraisal of this consensus. We distinguish two models of phenomenal consciousness: unitary and dual. Unitary model takes the production of a phenomenal quality and it's becoming conscious to be one and the same thing. The dual model, which we advocate in this paper, distinguishes the process in which the phenomenal quality is formed from the process that makes this quality conscious. We put forward a conceptual, methodological, neuropsychological and neural argument for the dual model. These arguments are independent but provide mutual support to each other. Together, they strongly support the dual model of phenomenal consciousness and the concomitant idea of unconscious mental qualities. The dual view is thus, we submit, a hypothesis worthy of further probing and development. PMID- 29024890 TI - A systematic review of economic evaluation in pancreatic ductal adenocarcinoma. AB - OBJECTIVES: The economic evaluation (EE) of healthcare interventions has become a necessity. However, high quality needs to be ensured in order to achieve validated results and help making informed decisions. Thus, the objective of the present study was to systematically identify and review published pancreatic ductal adenocarcinoma-related EEs and to assess their quality. METHODS: Systematic literature research was conducted in PubMed and Cochrane to identify published EEs between 2000 and 2015. The quality of each selected EE was assessed by two independent reviewers, using the Drummond's checklist. RESULTS: Our systematic review was based on 32 EEs and showed a wide variety of methodological approaches, including different perspectives, time horizon, and cost effectiveness analyses. Nearly two-thirds of EEs are full EEs (n = 21), and about one-third of EEs had a Drummond score >=7, synonymous with 'high quality'. Close to 50% of full EEs had a Drummond score >=7, whereas all of partial EEs had a Drummond score <7 (n = 11). CONCLUSIONS: Over the past 15 years, a lot of interest has been evinced over the EE of pancreatic ductal adenocarcinoma (PDAC) and its direct impact on therapeutic advances in PDAC. To provide a framework for health care decision-making, to facilitate transferability and to lend credibility to health EEs, their quality must be improved. For the last 4 years, a tendency towards a quality improvement of these studies has been observed, probably coupled with a context of rational decision-making in health care, a better and wider spread of recommendations and thus, medical practitioners' full endorsement. PMID- 29024891 TI - Mentalizing and interpersonal problems in borderline personality disorder: The mediating role of identity diffusion. AB - Individuals with borderline personality disorder (BPD) are characterized by problems in interpersonal functioning and their long-term social integration often remains problematic. Extant theories have linked identity diffusion to many of the interpersonal problems characteristic of BPD patients. Recent theoretical accounts have suggested that identity diffusion results from problems with mentalizing or reflective functioning, that is, the capacity to understand oneself and others in terms of intentional mental states. In this study we tested these assumptions, i.e., whether identity diffusion plays a mediating role in the relationship between mentalizing difficulties and interpersonal problems, in a sample of 167 BPD patients. Highly significant correlations were found between mentalizing impairments, identity diffusion and interpersonal problems. Mediation analyses showed that identity diffusion fully mediated the relationship between mentalizing difficulties and interpersonal problems. This study provides preliminary evidence that impairments in mentalizing are related to identity diffusion, which in turn is related to interpersonal problems in BPD. Further longitudinal research is needed to further substantiate these conclusions. PMID- 29024892 TI - Life review therapy enhances mental time travel in patients with schizophrenia. AB - Mental Time Travel (MTT) is the ability of individuals to project themselves to the past or to the future. Studies have shown that schizophrenia (SZ) patients are impaired in MTT. The present study aimed to examine whether MTT in patients with SZ can be improved through Life Review Therapy. Fifty patients with SZ were randomly assigned to the training (SZ-training) or control (SZ-control) group. Whereas the SZ-training group received four-week Life Review Therapy in addition to conventional treatment, the SZ-control group only received conventional treatment. MTT, emotional status, life satisfaction and cognitive functions were assessed before and after the training. We also recruited 25 matched healthy controls to complete all the assessments at baseline. After training, the SZ training group showed higher specificity and more field perspective than the SZ control group. No significant difference was found between the SZ-training group post-training assessment and the healthy controls. The SZ-training group also showed significant improvements in emotional expression, semantic memory and verbal fluency, but the SZ-control group did not show such improvements. These results indicated that Life Review Therapy is effective in improving MTT of SZ patients. PMID- 29024893 TI - Plasma ratio of clozapine to N-desmethylclozapine can predict cognitive performance in treatment-resistant psychotic patients. AB - Cognitive symptoms play a central role in schizophrenia and are strongly associated with social functioning. Treatment with clozapine presents controversial results regarding its effects on cognition. The opposite effects of clozapine and n-desmethylclozapine (NDMC) on cholinergic system have been suggested to underlie these inconclusive findings. The aim of this study is to determine whether clozapine/NDMC ratio can predict cognitive performance in patients with treatment-resistant psychosis. Nineteen clinically stable patients with schizophrenia or schizoaffective disorder treated with clozapine monotherapy completed demographic and clinical interviews. For the purpose of the study, patients were assessed with a neuropsychological battery and on the same day a blood sampling was obtained from each patient to measure plasma levels of clozapine and NDMC. Our results showed that clozapine/NDMC ratio, but not clozapine or NDMC plasma levels separately, was a predictive factor of cognitive performance, specifically of executive functioning. Our results showed that lower clozapine/NDMC ratios are associated with better executive functioning in clinically stable patients. These findings could be interpreted by the different pharmacodynamic properties on cholinergic, dopaminergic and serotonergic systems of NDMC compared to clozapine. PMID- 29024894 TI - High strength yttria-reinforced HA scaffolds fabricated via honeycomb ceramic extrusion. AB - The present study investigated the effects of hydroxyapatite (HA) reinforced with yttria on porous scaffolds fabricated via honeycomb ceramic extrusion. Yttria was selected as it has been demonstrated to toughen other ceramics. Moreover, yttria has been surmised to suppress dehydroxylation in HA, a characteristic that prefigures decomposition thereof during sintering into mechanically weaker phases. However, the compressive strength of yttria-reinforced hydroxyapatite (Y HA) porous scaffolds has hitherto not been reported. Y-HA was synthesised by calcining a commercially available HA with 10wt% yttria at 1000 degrees C. Y-HA was then fabricated into porous scaffolds using an in-house honeycomb extruder, and subsequently sintered at 1200 and 1250 degrees C. The results were compared to the uncalcined as-received commercial powder (AR-HA) and calcined pure HA powder at 1000 degrees C (C-HA). It was discovered that calcination alone caused marked improvements to the stoichiometry, thermal stability, porosity and compressive strength of scaffolds. The improvements were ascribed to the calcined powders with less susceptibility to both agglomeration and enhanced densification. Still, differences were observed between C-HA and Y-HA at 1250 degrees C. The compressive strength increased from 105.9 to 127.3MPa, a larger microporosity was descried and the HA matrix in Y-HA was more stoichiometric. The latter was confirmed by XRD and EDS analyses. Therefore, it was concluded that the reinforcing of hydroxyapatite with yttria improved the compressive strength and suppressed dehydroxylation of porous HA scaffolds. In addition, the compressive strength achieved demonstrated great potential for load-bearing application. PMID- 29024895 TI - Over length quantification of the multiaxial mechanical properties of the ascending, descending and abdominal aorta using Digital Image Correlation. AB - In this paper, we hypothesize that the biaxial mechanical properties of the aorta may be dependent on arterial location. To demonstrate any possible position related difference, our study analyzed and compared the biaxial mechanical properties of the ascending thoracic aorta, descending thoracic aorta and infrarenal abdominal aorta stemming from the same porcine subjects, and reported values of constitutive parameters for well-known strain energy functions, showing how these mechanical properties are affected by location along the aorta. When comparing ascending thoracic aorta, descending thoracic aorta and infrarenal abdominal aorta, abdominal tissues were found to be stiffer and highly anisotropic. We found that the aorta changed from a more isotropic to a more anisotropic tissue and became progressively less compliant and stiffer with the distance to the heart. We observed substantial differences in the anisotropy parameter between aortic samples where abdominal samples were more anisotropic and nonlinear than the thoracic samples. The phenomenological model was not able to capture the passive biaxial properties of each specific porcine aorta over a wide range of biaxial deformations, showing the best prediction root mean square error epsilon=0.2621 for ascending thoracic samples and, especially, the worst for the infrarenal abdominal samples epsilon=0.3780. The micro-structured model with Bingham orientation density function was able to better predict biaxial deformations (epsilon=0.1372 for ascending thoracic aorta samples). The root mean square error of the micro-structural model and the micro-structured model with von Mises orientation density function were similar for all positions. PMID- 29024897 TI - A framework for engaging stakeholders on the management of alien species. AB - Alien species can have major ecological and socioeconomic impacts in their novel ranges and so effective management actions are needed. However, management can be contentious and create conflicts, especially when stakeholders who benefit from alien species are different from those who incur costs. Such conflicts of interests mean that management strategies can often not be implemented. There is, therefore, increasing interest in engaging stakeholders affected by alien species or by their management. Through a facilitated workshop and consultation process including academics and managers working on a variety of organisms and in different areas (urban and rural) and ecosystems (terrestrial and aquatic), we developed a framework for engaging stakeholders in the management of alien species. The proposed framework for stakeholder engagement consists of 12 steps: (1) identify stakeholders; (2) select key stakeholders for engagement; (3) explore key stakeholders' perceptions and develop initial aims for management; (4) engage key stakeholders in the development of a draft management strategy; (5) re-explore key stakeholders' perceptions and revise the aims of the strategy; (6) co-design general aims, management objectives and time frames with key stakeholders; (7) co-design a management strategy; (8) facilitate stakeholders' ownership of the strategy and adapt as required; and (9) implement the strategy and monitor management actions to evaluate the need for additional or future actions. In case additional management is needed after these actions take place, some extra steps should be taken: (10) identify any new stakeholders, benefits, and costs; (11) monitor engagement; and (12) revise management strategy. Overall, we believe that our framework provides an effective approach to minimize the impact of conflicts created by alien species management. PMID- 29024896 TI - Identification of a soluble guanylate cyclase in RBCs: preserved activity in patients with coronary artery disease. AB - Endothelial dysfunction is associated with decreased NO bioavailability and impaired activation of the NO receptor soluble guanylate cyclase (sGC) in the vasculature and in platelets. Red blood cells (RBCs) are known to produce NO under hypoxic and normoxic conditions; however evidence of expression and/or activity of sGC and downstream signaling pathway including phopshodiesterase (PDE)-5 and protein kinase G (PKG) in RBCs is still controversial. In the present study, we aimed to investigate whether RBCs carry a functional sGC signaling pathway and to address whether this pathway is compromised in coronary artery disease (CAD). Using two independent chromatographic procedures, we here demonstrate that human and murine RBCs carry a catalytically active alpha1beta1 sGC (isoform 1), which converts 32P-GTP into 32P-cGMP, as well as PDE5 and PKG. Specific sGC stimulation by NO+BAY 41-2272 increases intracellular cGMP-levels up to 1000-fold with concomitant activation of the canonical PKG/VASP-signaling pathway. This response to NO is blunted in alpha1-sGC knockout (KO) RBCs, but fully preserved in alpha2-sGC KO. In patients with stable CAD and endothelial dysfunction red cell eNOS expression is decreased as compared to aged-matched controls; by contrast, red cell sGC expression/activity and responsiveness to NO are fully preserved, although sGC oxidation is increased in both groups. Collectively, our data demonstrate that an intact sGC/PDE5/PKG-dependent signaling pathway exists in RBCs, which remains fully responsive to NO and sGC stimulators/activators in patients with endothelial dysfunction. Targeting this pathway may be helpful in diseases with NO deficiency in the microcirculation like sickle cell anemia, pulmonary hypertension, and heart failure. PMID- 29024898 TI - Maternal and embryonic exposure to the water soluble fraction of crude oil or lead induces behavioral abnormalities in zebrafish (Danio rerio), and the mechanisms involved. AB - The water-soluble fraction (WSF) of crude oil plays an important role in the toxicity of crude oil in aquatic environments. Heavy metals, such as lead (Pb) are also important environmental contaminants, which can reach aquatic systems via the effluents of industrial, urban and mining sources. In the present study, we investigated whether maternal and embryonic exposure to the WSF (5, 50 MUg/L) or Pb (10, 100 MUg/L) could induce behavioral abnormalities in zebrafish. Our results showed that maternal and embryonic exposure to the WSF (5, 50 MUg/L) and Pb (10, 100 MUg/L) induced swimming activity alterations in larval and juvenile zebrafish. In 15 days post-fertilization (dpf) larval zebrafish, the distance moved was significantly increased in the groups treated with the WSF (5, 50 MUg/L), but the angular velocity and turn angle were decreased after treatment with the WSF (5, 50 MUg/L) or Pb (10, 100 MUg/L). In 30 dpf juvenile zebrafish, the distance moved was markedly decreased in both groups treated with the WSF (5, 50 MUg/L) and the Pb (10 MUg/L) group, but the percentage of zebrafish moving up and the inter-fish distance of two juvenile fish were increased after treatment with the WSF (5, 50 MUg/L) or Pb (10, 100 MUg/L). Maternal and embryonic exposure to the WSF (5, 50 MUg/L) or Pb (10, 100 MUg/L) likely impaired the brain neurons growth and induced behavioral abnormalities in the larval and juvenile zebrafish. Furthermore, the expressions of some key genes, which were associated with calcium channels, behavioral development or the metabolism of environmental contaminants, were changed. PMID- 29024899 TI - Mangiferin ameliorates fatty liver via modulation of autophagy and inflammation in high-fat-diet induced mice. AB - Non-alcoholic fatty liver disease (NAFLD) is the most common liver disease globally. The progression of NAFLD is complex and associated with inflammation, oxidative stress, autophagy, endoplasmic reticulum stress, and insulin resistance. Mangiferin, a natural C-glucosyl xanthone, has been reported to show multiple biological activities. The aim of this study was to investigate the therapeutic effect of mangiferin on NAFLD and the underlying molecular mechanism. We established a mouse model of NAFLD using a high-fat diet (HFD), and injected the mice with different doses of mangiferin (15, 30, and 60mg/kg, intraperitoneal) for 12 weeks. Liver tissue was assessed to evaluate changes in inflammatory responses, autophagy, and glycolipid metabolism. We found that mangiferin decreased body weight, as well as the levels of triglycerides and total cholesterol in plasma and the liver. It also increased glucose tolerance in HFD-fed mice. In addition, mangiferin decreased inflammatory responses by inhibiting the activities of nuclear factor kappa B and c-Jun N-terminal kinase, regulated autophagy via the AMP-activated protein kinase/mechanistic target of rapamycin signaling pathway, and improved glycolipid metabolism via modulation of the insulin receptor substrate/phosphoinositide 3-kinase/protein kinase B signaling pathway. This study demonstrated that mangiferin significantly ameliorates NAFLD development in HFD-fed mice by inhibiting inflammatory responses, activating autophagy, and improving glycolipid metabolism. PMID- 29024900 TI - The associations between problematic Facebook use, psychological distress and well-being among adolescents and young adults: A systematic review and meta analysis. AB - BACKGROUND: A growing body of research has analyzed the potential risks of problematic Facebook use for mental health and well-being. The current meta analysis is the first to examine the associations between problematic Facebook use, psychological distress (i.e., depression, anxiety, etc.) and well-being (life satisfaction, positive mental health) among adolescents and young adults. METHOD: A comprehensive search strategy identified relevant studies in PsychInfo, Pubmed, Scopus, ResearchGate, and Google Scholar. RESULTS: The final sample included 23 independent samples with a total of 13,929 participants (60.7% females; Mage= 21.93, range: 16.5-32.4). Results of random effects meta-analysis confirmed a positive correlation between problematic Facebook use and psychological distress (r = .34, 95% CI [.28, .39]). Moderation analysis revealed that effect sizes were larger in older samples. Moreover, a negative correlation between problematic Facebook use and well-being was observed (r = -.22, 95% CI [ .28, -.15]). LIMITATIONS: All available studies used a cross-sectional design thus hampering the possibility to establish the direction of the association between problematic Facebook use and psychological distress and well-being. CONCLUSIONS: Results are discussed within the extant literature on problematic Facebook use and future research directions are proposed. This research may also inform clinical and prevention interventions on problematic Facebook use. PMID- 29024901 TI - Impact of initial medication non-adherence to SSRIs on medical visits and sick leaves. AB - BACKGROUND: Initial medication non-adherence (IMNA) to antidepressants, which are commonly used to treat depression in primary care (PC), is around 6-12%. Although it is well known that post-initial non-adherence to antidepressants increases the cost of depression, the impact of IMNA on cost is unknown. The aim of this study is to assess the impact of IMNA to Selective Serotonin Reuptake Inhibitors (SSRI) on medical visits and sick leave in patients with depression treated in PC in Catalonia (Spain). METHODS: This was a four-year retrospective register-based study (2011-2014). All PC patients of working age who received a new SSRI prescription and had a diagnosis of depression were included (N = 79,642). Treatment initiation, number of visits and days on sick leave were gathered from the database. We assessed the impact of IMNA on costs with ordered logistic regressions. RESULTS: The 3-year incidence of IMNA was 15%. Initially non adherent patients made a lesser number of GP visits (OR = 0.82; 95% CI = 0.79 0.84) but had more days on sick leave (OR = 1.25; 95% CI = 1.20-1.31). There were no differences in the number of specialist visits (OR = 1.04; 95% CI = 0.99 1.08). LIMITATIONS: Differences between adherent and non-adherent patients could be explained by non-observed variables. GP recognition and documentation of depression might be inaccurate. Costs of unpaid work and use of hospital services were not considered. CONCLUSIONS: Although IMNA decreases the use of medical PC services, it increases the number of days on sick leave. This could also indicate worse health status. These consequences are currently overlooked when considering post-initial medication non-adherence. PMID- 29024902 TI - Psychological and behavioral characteristics of suicide attempts and non-suicidal self-injury in Chinese adolescents. AB - BACKGROUND: Suicide attempts (SA) and non-suicidal self-injury (NSSI) are prevalent in adolescents and important risk factors of suicide death. Both SA and NSSI are associated with multiple psychosocial, behavioral, biological and genetic factors. This study examined similarities and differences in psychological vulnerability and internalizing and externalizing problems between adolescents with SA and NSSI. METHODS: Participants consisted of 11,831 students and had a mean age of 14.97 (SD = 1.46) years. Students completed a structured questionnaire to report their demographic information, psychological characteristics, internalizing and externalizing problems, SA and NSSI. Based on the history of NSSI and SA in the last year, the sample was divided into four groups: non-self-harm (NSH), NSSI only, SA only, and NSSI+SA. Multivariate analyses of covariance and post-hoc pairwise comparisons were performed for multiple comparisons. RESULTS: Compared with NSH group, adolescents with either NSSI or SA scored significantly higher on trait anger, impulsiveness, hopelessness, internalizing and externalizing problems. NSSI+SA group and SA only group scored significantly higher than NSSI only group but both did not score significantly different on most psychological and behavioral variables. LIMITATIONS: Limitations include reliance on self-reported measures and cross sectional survey. CONCLUSIONS: Psychological and behavioral profiles between adolescents with SA and NSSI are similar but are more severe in suicide attempters. The findings highlight the necessity of assessing psychological and behavioral problems for prevention and early intervention of adolescent self harm. PMID- 29024903 TI - Bacteria, mould and yeast spore inactivation studies by scanning electron microscope observations. AB - Spores are the most resistant form of microbial cells, thus difficult to inactivate. The pathogenic or food spoilage effects of certain spore-forming microorganisms have been the primary basis of sterilization and pasteurization processes. Thermal sterilization is the most common method to inactivate spores present on medical equipment and foods. High pressure processing (HPP) is an emerging and commercial non-thermal food pasteurization technique. Although previous studies demonstrated the effectiveness of thermal and non-thermal spore inactivation, the in-depth mechanisms of spore inactivation are as yet unclear. Live and dead forms of two food spoilage bacteria, a mould and a yeast were examined using scanning electron microscopy before and after the inactivation treatment. Alicyclobacillus acidoterrestris and Geobacillus stearothermophilus bacteria are indicators of acidic foods pasteurization and sterilization processes, respectively. Neosartorya fischeri is a phyto-pathogenic mould attacking fruits. Saccharomyces cerevisiae is a yeast with various applications for winemaking, brewing, baking and the production of biofuel from crops (e.g. sugar cane). Spores of the four microbial species were thermally inactivated. Spores of S. cerevisiae were observed in the ascus and free form after thermal and HPP treatments. Different forms of damage and cell destruction were observed for each microbial spore. Thermal treatment inactivated bacterial spores of A. acidoterrestris and G. stearothermophilus by attacking the inner core of the spore. The heat first altered the membrane permeability allowing the release of intracellular components. Subsequently, hydration of spores, physicochemical modifications of proteins, flattening and formation of indentations occurred, with subsequent spore death. Regarding N. fischeri, thermal inactivation caused cell destruction and leakage of intracellular components. Both thermal and HPP treatments of S. cerevisiae free spores attacked the inner membrane, altering its permeability, and allowing in final stages the transfer of intracellular components to the outside. The spore destruction caused by thermal treatment was more severe than HPP, as HPP had less effect on the spore core. All injured spores have undergone irreversible volume and shape changes. While some of the leakage of spore contents is visible around the deformed but fully shaped spore, other spores exhibited large indentations and were completely deformed, apparently without any contents inside. This current study contributed to the understanding of spore inactivation by thermal and non-thermal processes. PMID- 29024904 TI - Salmonella survival during thermal dehydration of fresh garlic and storage of dehydrated garlic products. AB - Salmonella survival was characterized and modeled during thermal dehydration of fresh garlic and storage of dehydrated garlic products. In our experiments that simulated commercial dehydration processing at 80+/-5 degrees C, moderate level of Salmonella contamination (4-5logCFU/g) on fresh garlic was reduced below the enumeration limit (1.7logCFU/g) after 4.5h of dehydration and not detectable by culture enrichment after 7h. With high level of contamination (7-8logCFU/g), the Salmonella population persisted at 3.6logCFU/g after 8h of processing. By increasing the dehydration temperature to 90+/-5 degrees C, the moderate and high levels of initial Salmonella load on fresh garlic dropped below the enumeration limit after 1.5 and 3.75h of processing and became undetectable by culture enrichment after 2.5 and 6h, respectively. During the storage of dried garlic products, Salmonella was not able to grow under all tested combinations of temperature (25 and 35 degrees C) and water activity (0.56-0.98) levels, suggesting active inhibition. Storage temperature played a primary role in determining Salmonella survival on dehydrated garlic flakes. Under a typical storage condition at 25 degrees C and ambient relative humidity, Salmonella could persist over months with the population gradually declining (4.3 log reduction over 88days). Granular size of dehydrated garlic had an impact on Salmonella survival, with better survival of the pathogen observed in bigger granules. At the early stage of dehydrated garlic storage (until 7days), rising water activity appeared to initially promote but then inhibited Salmonella survival, resulting in a water activity threshold at 0.73 where Salmonella displayed strongest persistence. However, this phenomenon was less apparent during extended storage (after 14days). PMID- 29024905 TI - Hantavirus maintenance and transmission in reservoir host populations. AB - Hantaviruses are primarily hosted by mammalian species of the orders Rodentia, Eulipotyphla and Chiroptera. Spillover to humans is common, and understanding hantavirus maintenance and transmission in reservoir host populations is important for efforts to curtail human disease. Recent field research challenges traditional phases of virus shedding kinetics derived from laboratory rodent infection experiments. Organ infection sites in non-rodent hosts suggest similar transmission routes to rodents, but require direct assessment. Further advances have also been made in understanding virus persistence (and fadeouts) in fluctuating host populations, as well as occupational, recreational and environmental risk factors associated with spillover to humans. However, despite relevance for both intra-species and inter-species transmission, our understanding of the longevity of hantaviruses in natural environments remains limited. PMID- 29024906 TI - Walkability, complete streets, and gender: Who benefits most? AB - Does street walkability and a new complete street renovation relate to street use and gender composition? We audited two mixed-walkability complete streets ("complete less-urban" and "complete-urban"), one low-walkable street, and one high-walkable street at pre-renovation and twice post-renovation. Complete street users increased, especially for the complete-less urban street. Typically, the high-walkable street attracted the most and the low-walkable street attracted the fewest total people, males, and females; complete streets were in between. On blocks with people, females were only 29% of users; females were much less common on low- walkable streets. Street improvements might enhance gender equity. PMID- 29024907 TI - Relationship between the neighbourhood built environment and early child development. AB - The relationship between features of the neighbourhood built environment and early child development was investigated using area-level data from the Australian Early Development Census. Overall 9.0% of children were developmentally vulnerable on the Physical Health and Well-being domain, 8.1% on the Social Competence domain and 8.1% on the Emotional Maturity domain. After adjustment for socio-demographic factors, Local Communities with the highest quintile of home yard space had significantly lower odds of developmental vulnerability on the Emotional Maturity domain. Residing in a Local Community with fewer main roads was associated with a decrease in the proportion of children developmentally vulnerable on the Social Competence domain. Overall, sociodemographic factors were more important than aspects of the neighbourhood physical environment for explaining variation between Local Communities in the developmental vulnerability of children. PMID- 29024908 TI - Tackling the mortality from long-term exposure to outdoor air pollution in megacities: Lessons from the Greater Cairo case study. AB - OBJECTIVE: The poor outdoor air quality in megacities of the developing world and its impact on health is a matter of concern for both the local populations and the decision-makers. The objective of this work is to quantify the mortality attributable to long-term exposure to PM2.5, NO2, and O3 in Greater Cairo (Egypt). METHODS: We analyze the temporal and spatial variability of the three pollutants concentrations measured at 18 stations of the area. Then, we apply the method recommended by the WHO to estimate the excess mortality. In this assessment, three different shapes (log-linear, linear, and log-log) of the concentration-response functions (CRF) are used. RESULTS: With PM2.5 concentrations varying from 50 to more than 100ug/m3 in the different sectors of the megacity, the spatial variability of this pollutant is found to be one important cause of uncertainty on the excess mortality associated with it. Also important is the choice of the CRF. With the average (75ug/m3) PM2.5 concentration and the most favorable log-log shape of the CRF, 11% (CI, 9-14%) of the non-accidental mortality in the population older than 30 years can still be attributed to PM2.5, which corresponds to 12520 (CI, 10240-15930) yearly premature deaths. Should the Egyptian legal 70ug/m3 PM10 limit (corresponding to approximately 37.5ug/m3 for PM2.5) be met, this number would be reduced to 7970, meaning that 4550 premature deaths could be avoided each year. Except around some industrial or traffic hot spots, NO2 concentration is found to be below the 40ug/m3 air quality guideline of the WHO. However, the average concentration (34ug/m3) of this gas exceeds the stricter 10ug/m3 recommendation of the HRAPIE project and it is thus estimated that from 7850 to 10470 yearly deaths can be attributed to NO2. Finally, with the ozone concentration measured at one station only, it is found that, depending on the choice of the CRF, between 2.4% and 8.8% of the mortality due to respiratory diseases can be attributed to this gas. CONCLUSION: In Greater Cairo, PM2.5 and NO2 constitute major health risks. The best estimate is that in the population older than 30 years, 11% and 8% of the non-accidental mortality can be attributed to these two pollutants, respectively. PMID- 29024909 TI - Impact of phosphate limitation on PHA production in a feast-famine process. AB - Double-limitation systems have shown to induce polyhydroxyalkanoates (PHA) production in chemostat studies limited in e.g. carbon and phosphate. In this work the impact of double substrate limitation on the enrichment of a PHA producing community was studied in a sequencing batch process. Enrichments at different C/P concentration ratios in the influent were established and the effect on the PHA production capacity and the enrichment community structure was investigated. Experimental results demonstrated that when a double substrate limitation is imposed at a C/P ratio in the influent in a range of 150 (C mol/mol), the P-content of the biomass and the specific substrate uptake rates decreased. Nonetheless, the PHA storage capacity remained high (with a maximum of 84 wt%). At a C/P ratio of 300, competition in the microbial community is based on phosphate uptake, and the PHA production capacity is lost. Biomass specific substrate uptake rates are a linear function of the cellular P-content, offering advantages for scaling-up the PHA production process due to lower oxygen requirements. PMID- 29024910 TI - Leishmanicidal and cytotoxic activity of hederagenin-bistriazolyl derivatives. AB - Aiming to obtain new potent leishmanicidal and cytotoxic compounds from natural sources, the triterpene hederagenin was converted into several new 1,2,3 triazolyl derivatives tethered at C-23 and C-28. For this work hederagenin was isolated from fruits of Sapindus saponaria and reacted with propargyl bromide to afford as a major product bis-propargylic derivative 1 in 74%. Submitting this compound to Huisgen 1,3-dipolar cycloaddition reactions with several azides afforded the derivatives 2-19 with yields in the range of 40-87%. All compounds have been screened for in vitro cytotoxic activity in a panel of five human cancer cell lines by a SRB assay. The bioassays showed that compound 19 was the most cytotoxic against all human cancer cell lines with EC50 = 7.4-12.1 MUM. Moreover, leishmanicidal activity was evaluated through the in vitro effect in the growth of Leishmania infantum, and derivatives 1, 2, 5 and 17 were highly effective preventing proliferation of intracellular amastigote forms of L. infantum (IC50 = 28.8, 25.9, 5.6 and 7.4 MUM, respectively). All these compounds showed a higher selectivity index and low toxicity against two strains of kidney BGM and liver HepG2 cells. Compound 5 has higher selectivity (1780 times) in comparison with the commercial antimony drug and is around 8 times more selective than the most active compound previously reported hederagenin derivative. Such high activity associated with low toxicities make the new bis-traiazolyl derivatives promising candidates for the treatment of leishmaniasis. In addition, hederagenin and some derivatives (2, 5 and 17) showed interaction in the binding site of the enzyme CYP51Li. PMID- 29024911 TI - Simultaneous quantitative analysis of uremic toxins by LC-MS/MS with a reversed phase/cation-exchange/anion-exchange tri-modal mixed-mode column. AB - Column choice is crucial to the development of liquid chromatography/tandem mass spectrometry (LC-MS/MS) methods because analyte selectivity is dependent on the nature of the stationary phase. Recently, mixed-mode chromatography, which employs a combination of two or more stationary phases and solvent systems, has emerged as an alternative to multiple, complementary, single-column systems. This report describes the development and validation of a novel analytical method based on LC-MS/MS employing a reversed-phase/cation-exchange/anion-exchange tri modal column (Scherzo SS-C18; Imtakt) for the simultaneous quantification of various uremic toxins (UTx), including creatinine, 1-methyladenosine, trimethylamine-N-oxide, indoxyl sulfate, p-cresyl sulfate, phenyl sulfate and 4 ethylphenyl sulfate. Stable isotope-labeled compounds were prepared as internal standards (ISs) for each analyte. Mobile phase optimization and appropriate gradient conditions resulted in satisfactory retention and peak resolution that could not have been attained with a single stationary phase LC system. The essential validation parameters, including intra- and inter-assay precision and accuracy, were adequate. The validated method was applied to measure serum levels of the aforementioned compounds in 19 patients with chronic kidney disease. This is the first report detailing the simultaneous quantification of these analytes using stable isotopes as ISs. Our results suggest that Scherzo SS-C18 columns will be considered breakthrough tools in the development of analytical methods for compounds that are difficult to quantify simultaneously in traditional LC systems. PMID- 29024912 TI - How important is aspirin adherence when evaluating effectiveness of low-dose aspirin? AB - Low-dose aspirin (LDA) is advocated for women at high-risk of pre-eclampsia, providing a modest, 10%, reduction in risk. Cardiology meta-analyses demonstrate 18% reduction in serious vascular events with LDA. Non-responsiveness to aspirin (sometimes termed aspirin resistance) and variable clinical effectiveness are often attributed to suboptimal adherence. The aim of this review was to identify the scope of adherence assessments in RCTs evaluating aspirin effectiveness in cardiology and obstetrics and discuss the quality of information provided by current methods. We searched MEDLINE, EMBASE and the Cochrane Library, limited to humans and English language, for RCTs evaluating aspirin in cardiology; 14/03/13 13/03/16 and pregnancy 1957-13/03/16. Search terms; 'aspirin', 'acetylsalicylic acid' appearing adjacent to 'myocardial infarction' or 'pregnancy', 'pregnant', 'obstetric' were used. 38% (25/68) of obstetric and 32% (20/62) of cardiology RCTs assessed aspirin adherence and 24% (6/25) and 29% (6/21) of obstetric and cardiology RCTs, respectively, defined acceptable adherence. Semi-quantitative methods (pill counts, medication weighing) prevailed in obstetric RCTs (93%), qualitative methods (interviews, questionnaires) were more frequent in obstetrics (67%). Two obstetric RCTs quantified serum thromboxane B2 and salicylic acid, but no quantitative methods were used in cardiology Aspirin has proven efficacy, but suboptimal adherence is widespread and difficult to accurately quantify. Little is currently known about aspirin adherence in pregnancy. RCTs evaluating aspirin effectiveness show over-reliance on qualitative adherence assessments vulnerable to inherent inaccuracies. Reliable adherence data is important to assess and optimise the clinical effectiveness of LDA. We propose that adherence should be formally assessed in future trials and that development of quantitative assessments may prove valuable for trial protocols. PMID- 29024913 TI - Retrospective study on de novo postoperative urinary incontinence after pelvic organ prolapse surgery. AB - OBJECTIVE: Reported incidences of de novo urinary incontinence (UI) following pelvic organ prolapse (POP) surgery in preoperatively continent women vary between 2% and 43%. The aim of this study was to investigate the incidence and the types of de novo UI and differences between operations in different compartments. STUDY DESIGN: Retrospective study of 678 women with POP surgery using native tissue repair during a 3-year period. Patients completed three modified prolapse questions from the International Consultation on Incontinence Vaginal Symptoms (ICIQ-VS) and the International Consultation on Incontinence Questionnaire- Urinary Incontinence Short Form (ICIQ-UI SF) before undergoing surgery and 3 months postoperatively. Patients who were totally dry and scored 0 on ICIQ-UI SF before surgery were included in the study (N=299). The patients developing new onset UI on ICIQ-UI SF postoperatively were interviewed by telephone after median 30 months. RESULTS: A total of 33 patients (11%) developed subjective de novo UI at 3 months follow-up. The majority of patients (N=16) reported stress UI. The risk of developing de novo UI increased with parity (p=0.03). We found no difference between operations in different compartments. At long-term follow-up 12 patients became continent without incontinence surgery or medical treatment leaving only 21 patients (7%) incontinent. CONCLUSION: The risk of developing de novo UI after prolapse surgery with native tissue repair is low and improves over time. Parity is significantly associated with the risk of developing de novo UI. There is no difference in the incidence of de novo incontinence between operations in different compartments. PMID- 29024914 TI - 'Exploring' the regulation of Streptomyces growth and development. AB - The Streptomyces life cycle encompasses three well-established developmental stages: vegetative hyphae, aerial hyphae and spores. Many regulators governing the transitions between these life cycle stages have been identified, and recent work is shedding light on their specific functions. A new discovery has shown Streptomyces can deviate from this classic life cycle through a process termed 'exploration', where cells rapidly traverse solid surfaces. Exploration does not require any of the traditional developmental regulators, and therefore provides an exciting new context in which to uncover novel developmental pathways. Here, we summarize our understanding of how Streptomyces exploration is controlled, and we speculate on how insight into classical regulation and stress response systems can inform future research into the regulation of exploratory growth. PMID- 29024915 TI - Information density converges in dialogue: Towards an information-theoretic model. AB - The principle of entropy rate constancy (ERC) states that language users distribute information such that words tend to be equally predictable given previous contexts. We examine the applicability of this principle to spoken dialogue, as previous findings primarily rest on written text. The study takes into account the joint-activity nature of dialogue and the topic shift mechanisms that are different from monologue. It examines how the information contributions from the two dialogue partners interactively evolve as the discourse develops. The increase of local sentence-level information density (predicted by ERC) is shown to apply to dialogue overall. However, when the different roles of interlocutors in introducing new topics are identified, their contribution in information content displays a new converging pattern. We draw explanations to this pattern from multiple perspectives: Casting dialogue as an information exchange system would mean that the pattern is the result of two interlocutors maintaining their own context rather than sharing one. Second, we present some empirical evidence that a model of Interactive Alignment may include information density to explain the effect. Third, we argue that building common ground is a process analogous to information convergence. Thus, we put forward an information theoretic view of dialogue, under which some existing theories of human dialogue may eventually be unified. PMID- 29024916 TI - Can monolinguals be like bilinguals? Evidence from dialect switching. AB - Bilinguals rely on cognitive control mechanisms like selective activation and inhibition of lexical entries to prevent intrusions from the non-target language. We present cross-linguistic evidence that these mechanisms also operate in bidialectals. Thirty-two native German speakers who sometimes use the Ocher Platt dialect, and thirty-two native English speakers who sometimes use the Dundonian Scots dialect completed a dialect-switching task. Naming latencies were higher for switch than for non-switch trials, and lower for cognate compared to non cognate nouns. Switch costs were symmetrical, regardless of whether participants actively used the dialect or not. In contrast, sixteen monodialectal English speakers, who performed the dialect-switching task after being trained on the Dundonian words, showed asymmetrical switch costs with longer latencies when switching back into Standard English. These results are reminiscent of findings for balanced vs. unbalanced bilinguals, and suggest that monolingual dialect speakers can recruit control mechanisms in similar ways as bilinguals. PMID- 29024917 TI - Thermo-responsive mesoporous silica/lipid bilayer hybrid nanoparticles for doxorubicin on-demand delivery and reduced premature release. AB - Hybrid nanocarriers based on mesoporous silica nanoparticles (MSNs) and supported lipid bilayer (SLB) have been studied as drug delivery system. It still remains challenges to develop these nanocarriers (SLB-MSNs) with on-demand drug release profile for chemotherapy. Here, we reported the biocompatible SLB-MSNs with high drug loading, which could release doxorubicin (DOX) in response to hyperthermia and reduce premature release. After synthesis of MSNs via a sol-gel procedure, the thermo-responsive SLB was deposited on the MSNs by sonication to completely seal the mesopores. The obtained SLB-MSNs consisted of 50 nm-sized MSN cores and 6.3 nm-thick SLB shells. Due to the big surface and pore volume of MSNs, the high drug loading content (7.30+/-0.02%) and encapsulation efficiency (91.16+/-0.28%) were achieved. The SLB blocking the mesopores reduced 50% of premature release and achieved on-demand release in a thermo-responsive manner. Moreover, SLB-MSNs showed good hemocompatibility at any tested concentration (25-700MUg/mL), while bare MSNs caused 100% of hemolysis at concentration larger than 325MUg/mL. In addition, in vitro U251 cell uptake experiment demonstrated that compared with uncapped MSNs, SLB-MSNs could prevent untargeted cellular uptake of DOX owing to reduced premature release and steric hindrance of PEG, which would be beneficial to minimize toxicity for healthy tissues. These results indicated that SLB-MSNs with thermo-responsive release capacity possessed great potential in future synergistic thermo-chemotherapy. PMID- 29024918 TI - Design of parenteral MNP-loaded PLGA nanoparticles by a low-energy emulsification approach as theragnostic platforms for intravenous or intratumoral administration. AB - Encapsulation of magnetic nanoparticles (MNP) into PLGA nanoparticles has been achieved by nano-emulsion templating using for the first time both, a low-energy emulsification method as well as biocompatible components accepted for pharmaceuticals intended for human use. The incorporation of MNP by nano-emulsion templating method proposed in this work has been investigated in two different systems applying mild process conditions and is shown to be simple and versatile, providing stable MNP-loaded PLGA nanoparticles with tunable size and MNP concentration. MNP-loaded PLGA nanoparticles showed sizes below 200nm by DLS and 50nm by TEM, and mean MNP loading per PLGA nanoparticle of 1 to 4, depending on the nanoparticle dispersion composition. Physical-chemical features suggest that the MNP-loaded PLGA nanoparticles obtained are good candidates for intravenous or intratumoral administration. PMID- 29024919 TI - Graphene oxide@gold nanorods for chemo-photothermal treatment and controlled release of doxorubicin in mice Tumor. AB - Graphene oxide (GO) is a close derivative of graphene has unlocked many pivotal steps in drug delivery due to their inherent biocompatibility, excellent drug loading capacity, and shows antibacterial, antifungal properties etc. We used a novel plant material called Gum arabic (GA) to increase the solubility of GO as well as to chemically reduce it in the solution. GA functionalized GO (fGO) exhibited increased absorption in near infra-red region (NIR) which was exploited in photothermal therapy for cancer. In order to understand the shape and size effect of GO which may affect their rheological properties, we have conjugated them with gold nanorods (GNRs) using in situ synthesis of GO@GNRs via seed mediated method. To the above conjugate, Doxorubicin (DOX) was attached at ambient temperature (28+/-2 degrees C). The release kinetics of DOX with the effect of NIR exposure was also carefully studied via in vitro photothermal killing of A549 cell lines. The enhancement in NIR induced drug release and photothermal property was observed which indicates that the fGO@GNRs-DOX method is an ideal choice for chemotherapy and photothermal therapy simultaneously. PMID- 29024920 TI - Chitosan/hydroxyapatite (HA)/hydroxypropylmethyl cellulose (HPMC) spongy scaffolds-synthesis and evaluation as potential alveolar bone substitutes. AB - Alveolar bone loss is associated with infections and its augmentation is a pre requisite for the success of dental implants. In present study, we aim to develop and evaluate novel freeze dried doxycycline loaded chitosan (CS)/hydroxyapatite (HA) spongy scaffolds where hydroxypropylmethyl cellulose (HPMC) was added as a crosslinker. Scaffolds displayed compressive strength of 14MPa/cm3 and 0.34 as elastic response. The interconnected pore diameter was 41-273MUm, favorably provided the template supporting cells and transport. An overall 10% degradation was seen after 14day's studies at pH 7.4 in PBS. Doxycycline hyclate, a frequently used drug to counter oral infections, demonstrated an initial burst release (6-8h), followed by a sustain release profile for the remaining 64h. CS/HA/HPMC scaffolds were nontoxic and promoted pre-osteoblast cell viability as seen with live/dead calcein staining after 24h where scaffolds with 10% and 25% HPMC by weight of scaffold had more viable cells. Scaffolds with 10%, 20% and 25% HPMC by weight of scaffold showed efficient cellular adhesion as seen in scanning electron microscopy images (day 8) indicating that pre-osteoblast cells were able to adhere well on the surface and into the porous structure via cytoplasmic extensions. Hoechst 33258 nuclear staining at day 2 and 8 indicated cell proliferation which was further supported byMTT assay at day 2, 4 and 8. Although all scaffolds supported pre-osteoblast cell viability, alkaline phosphatase (ALP) staining demonstrated that upon induction, differentiation was pronounced in case of scaffolds with 10% HMPC scaffolds. Conclusively, these materials having all the required mechanical and biological properties are potential candidates for alveolar bone regeneration. PMID- 29024921 TI - Highly sensitive and selective sensor for sunset yellow based on molecularly imprinted polydopamine-coated multi-walled carbon nanotubes. AB - Polydopamine (PDA) can be formed by monomeric self-polymerization in water. This convenient behavior was exploited to prepare a molecularly imprinted polymer (MIP) layer on the surface of multi-walled carbon nanotubes (MWCNTs) with sunset yellow (SY) as a template molecule. The prepared nanocomposites were characterized, and their electrochemical behavior towards SY was investigated. Under the optimized conditions, a glassy carbon electrode modified with the imprinted nanocomposite showed a highly selective and ultrasensitive electrochemical response to SY compared with the performance of control electrodes and previously reported electrochemical sensors for SY. The improved behavior of the developed sensor can be attributed to its superficial highly matched imprinted cavities on the excellent electrocatalytic matrix of MWCNTs and the electronic barrier of the non-imprinted PDA to outside molecules. The fabricated sensor expressed a linear relationship to SY concentrations from 2.2nM to 4.64MUM with a detection limit of 1.4nM (S/N = 3). The sensor also exhibited excellent selectivity for SY over its structural analogs, good stability, and adequate reproducibility. The prepared sensor was successfully used to detect SY in real spiked samples. This methodology has potential application value and may be readily adapted to design other PDA-based MIP sensors. PMID- 29024922 TI - Isolation and whole genome analysis of endospore-forming bacteria from heroin. AB - Infections caused by endospore-forming bacteria have been associated with severe illness and death among persons who inject drugs. Analysis of the bacteria residing in heroin has thus been biased towards species that affect human health. Similarly, exploration of the bacterial diversity of seized street market heroin correlated with the skin microflora of recreational heroin users insofar as different Staphylococus spp. or typical environmental endospore formers including Bacillus cereus and other Bacilli outside the B. cereus sensu lato group as well as diverse Clostridia were identified. In this work 82 samples of non-street market ("wholesale") heroin originating from the German Federal Criminal Police Office's heroin analysis program seized during the period between 2009 and 2014 were analyzed for contaminating bacteria. Without contact with the end user and with only little contaminations introduced by final processing, adulteration and cutting this heroin likely harbors original microbiota from the drug's original source or trafficking route. We found this drug to be only sparsely populated with retrievable heterotrophic, aerobic bacteria. In total, 68 isolates were retrieved from 49 out of 82 samples analyzed (60% culture positive). All isolates were endospore-forming, Gram-positive Bacilli. Completely absent were non endospore-formers or Gram-negatives. The three most predominant species were Bacillus clausii, Bacillus (para)licheniformis, and Terribacillus saccharophilus. Whole genome sequencing of these 68 isolates was performed using Illumina technology. Sequence data sets were assembled and annotated using an automated bioinformatics pipeline. Average nucleotide identity (ANI) values were calculated for all draft genomes and all close to identical genomes (ANI>99.5%) were compared to the forensic data of the seized drug, showing positive correlations that strongly warrant further research on this subject. PMID- 29024924 TI - Assessing heteroplasmic variant drift in the mtDNA control region of human hairs using an MPS approach. AB - Resolution of mitochondrial (mt) DNA heteroplasmy is possible when applying a massively parallel sequencing (MPS) approach. However, interpretation criteria for matching heteroplasmic sequences will need to be established that address a number of important topics, including the drift of variants in sample types such as human hair shafts. Prior to MPS analysis, we compared three different DNA extraction methods for hair using a custom mtDNA quantitative PCR (mtqPCR) assay, and found that a method involving bead capture significantly outperformed methods currently in place in forensic laboratories. The findings were similar for both fine (head) and coarse (pubic) hairs. Using the favored DNA extraction approach, hair shaft extracts were subjected to MPS analysis to assess heteroplasmic drift and the potential impact of the observations on interpretation of mtDNA MPS data. Hairs from different regions of the head were evaluated in individuals with varying percentages of heteroplasmy (low-level, high-level, and no detectable heteroplasmy), as measured in buccal and blood cells. The range of variant ratios was broad and was not significantly different between individuals in the low and high-level groups. While the range was also broad for the group of individuals with no heteroplasmy, the vast majority of hairs from these donors still exhibited a lack of heteroplasmy. A model was developed to predict the amount of heteroplasmy expected in hair samples when knowledge of the percentage of heteroplasmy in buccal cells is available. While significant, the model was best applied when levels of heteroplasmy in buccal cells was high. No correlation was observed between rates of heteroplasmy in blood cells and the predicted amount of heteroplasmy in hairs. Of particular interest, unexpected sites of mixed mtDNA sequence that could be interpreted as heteroplasmy were observed for 13% of the 75 hairs tested. These sites can be explained as heteroplasmy not observed in buccal or blood cells, or sites of DNA damage, with inherent heteroplasmy a likely cause, possibly due to de novo mutation events. Overall, when applying an MPS approach to hair analysis, heteroplasmic variant ratios may be quite different than those observed in blood cells, may be correlated to rates in buccal cells, and may include unexpected mixed sites. The results of this study directly impact MPS analysis of minor sequence variants from hair samples, and are particularly relevant to clinical and forensic investigations. PMID- 29024926 TI - Metsovo Lung: A Story of Episteme, Techne, and Phronesis. PMID- 29024923 TI - A GHEP-ISFG collaborative study on the genetic variation of 38 autosomal indels for human identification in different continental populations. AB - A collaborative effort was carried out by the Spanish and Portuguese Speaking Working Group of the International Society for Forensic Genetics (GHEP-ISFG) to promote knowledge exchange between associate laboratories interested in the implementation of indel-based methodologies and build allele frequency databases of 38 indels for forensic applications. These databases include populations from different countries that are relevant for identification and kinship investigations undertaken by the participating laboratories. Before compiling population data, participants were asked to type the 38 indels in blind samples from annual GHEP-ISFG proficiency tests, using an amplification protocol previously described. Only laboratories that reported correct results contributed with population data to this study. A total of 5839 samples were genotyped from 45 different populations from Africa, America, East Asia, Europe and Middle East. Population differentiation analysis showed significant differences between most populations studied from Africa and America, as well as between two Asian populations from China and East Timor. Low FST values were detected among most European populations. Overall diversities and parameters of forensic efficiency were high in populations from all continents. PMID- 29024925 TI - Defining functioning levels in patients with schizophrenia: A combination of a novel clustering method and brain SPECT analysis. AB - This study aims to define functioning levels of patients with schizophrenia by using a method of interpretable clustering based on a specific functioning scale, the Functional Remission Of General Schizophrenia (FROGS) scale, and to test their validity regarding clinical and neuroimaging characterization. In this observational study, patients with schizophrenia have been classified using a hierarchical top-down method called clustering using unsupervised binary trees (CUBT). Socio-demographic, clinical, and neuroimaging SPECT perfusion data were compared between the different clusters to ensure their clinical relevance. A total of 242 patients were analyzed. A four-group functioning level structure has been identified: 54 are classified as "minimal", 81 as "low", 64 as "moderate", and 43 as "high". The clustering shows satisfactory statistical properties, including reproducibility and discriminancy. The 4 clusters consistently differentiate patients. "High" functioning level patients reported significantly the lowest scores on the PANSS and the CDSS, and the highest scores on the GAF, the MARS and S-QoL 18. Functioning levels were significantly associated with cerebral perfusion of two relevant areas: the left inferior parietal cortex and the anterior cingulate. Our study provides relevant functioning levels in schizophrenia, and may enhance the use of functioning scale. PMID- 29024927 TI - Identifying a Potential Summary Measure for Overall Caries Level in Children Examined with the International Caries Detection and Assessment System. AB - OBJECTIVE: To identify a potential summative summary measure that reflects a patient's overall caries level in children examined with the International Caries Detection and Assessment System (ICDAS). SUBJECTS AND METHODS: Participants were 1- to 15-year-old children from Kuwait, Brazil, and Spain. Children's teeth were examined using the ICDAS. Multiple measures of central tendency and dentition specific indices were considered as potential summative measures. The relationship between the summative measures and number of caries lesions was evaluated considering degrees of caries severity using Spearman's correlation analysis. The results were generated using the Kuwaiti sample and were cross validated using the Brazilian and Spanish samples. RESULTS: A total of 2,808 children participated in the present study. Total ICDAS score and mean ICDAS score showed a strong correlation with the number of caries lesions at different caries severity levels in primary, mixed, and permanent dentitions. The total ICDAS score of 51 buccal (B), 61B, 54 occlusal (O), 55O, 64O, 65O, 74O, 75O, 84O, and 85O surfaces in primary dentition and the total ICDAS score of 14O, 16 lingual (L), 16O, 24O, 26L, 26O, 36B, 36O, 37O, 46O, 46B, and 47O surfaces in permanent dentition or mixed dentition (if present) showed strong correlations with the number of caries lesions at different caries severity levels. CONCLUSIONS: Total ICDAS and mean ICDAS scores were the best summary measures of overall caries level at different dental stages. Total ICDAS scores of selectively examined 10 surfaces in primary dentition and 12 surfaces in permanent dentition can give an excellent summary measure for a patient's overall caries level with high diagnostic accuracy. PMID- 29024928 TI - Zinc Inhibits Collagenolysis by Cathepsin K and Matrix Metalloproteinases in Demineralized Dentin Matrix. AB - The enzymatic degradation of dentin organic matrix occurs via both the action of matrix metalloproteinases (MMPs) and cysteine cathepsins (CCs). Zinc can prevent collagen hydrolysis by MMPs. However, its effect on the activity of dentin-bound CCs is not known. The aim of this study was to investigate the effect of zinc on matrix-bound cathepsin K and MMP activity in dentin. Completely demineralized dentin beams were divided into test groups (n = 9) and incubated at 37 degrees C in an incubation media (1 mL) containing ZnCl2 of 0.02 (physiological level, control), 0.2, 0.5, 1, 5, 10, 20, 30, or 40 mM. The dry mass changes of the beams were determined, and incubation media were analyzed for cathepsin K- and MMP specific collagen degradation end products - CTX (C-terminal cross-linked telopeptide of type I collagen) and ICTP (cross-linked carboxy-terminal telopeptide of type I collagen) - at 1, 3, and 7 days of incubation. The mass loss of the beams decreased when the zinc level in the incubation media was >=5 mM (p < 0.05). The release of liberated collagen degradation telopeptides decreased in accordance with the decrease in the mass loss rates of the beams. Cathepsin K-induced dentin collagen degradation can be strongly inhibited by zinc. Zinc levels of >=5 mM can be considered as a reliable threshold for the stabilization of dentin matrices. PMID- 29024929 TI - Inhibition of MicroRNA-21-5p Promotes the Radiation Sensitivity of Non-Small Cell Lung Cancer Through HMSH2. AB - BACKGROUND: This study aimed to explore the effects of microRNA-21-5p (miR-21-5p) on the radiation sensitivity of non-small cell lung cancer (NSCLC) and the involvement of human MutS homolog 2 (hMSH2) One hundred fourteen NSCLC patients at stage II or III who received surgery and postoperative radiotherapy were enrolled in this study. METHODS: The patients were assigned into radiation sensitive and -insensitive groups. NSCLC A549 cells were transfected to generate control, Negative control (NC), miR-21-5p inhibitor, miR-21-5p mimic, small interfering hMSH2 (sihMSH2), miR-21-5p inhibitor + sihMSH2 and hMSH2 overexpression groups. Immunohistochemistry was performed to detect the hMSH2 expression in transfected and irradiated cells. Quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting were performed to evaluate A549 miR 21-5p and hMSH2 expression in transfected and irradiated cells. A colony formation assay was adopted for cell survival analysis. The relationship between miR-21-5p and hMSH2 was verified by a luciferase reporter assay. Cell viability was measured by the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, and apoptosis was assessed by flow cytometry. NSCLC nude mouse models were established, and tumor volumes and tumor weights were recorded. RESULTS: The radiation-sensitive group of patients exhibited lower miR-21-5p but higher hMSH2 expression than the insensitive group. For irradiated A549 cells, lower cell survival, higher apoptosis, increased miR-21-5p expression and decreased hMSH2 expression were observed at 6 and 8 Gy than at 0, 2 and 4 Gy; compared to 6 Gy, cell survival and hMSH2 expression were decreased and apoptosis and miR-21-5p expression were increased at 8 Gy. Additionally, miR-21-5p was found to target hMSH2. Compared with the control group, the cell survival rate was lower and the apoptosis rate higher in the miR-21-5p inhibitor group, whereas the opposite was observed for the miR-21-5p mimic and sihMSH2 groups. For the mouse model, decreased tumor volume and tumor weight and higher hMSH2 expression were found in the miR-21-5p inhibitor, radiation, hMSH2 overexpression, miR-21-5p inhibitor + radiation and hMSH2 overexpression + radiation groups compared with the control group. In addition, tumor volume and tumor weight were decreased and hMSH2 expression increased in the miR-21-5p inhibitor + radiation and hMSH2 overexpression + radiation groups compared with the radiation alone group. CONCLUSION: These findings indicate that inhibition of miR-21 can promote the radiation sensitivity of NSCLC by targeting hMSH2. PMID- 29024932 TI - IUNS. 21st International Congress of Nutrition. Buenos Aires, Argentina, October 15-20, 2017: Abstracts. PMID- 29024930 TI - Effect of Concurrent Src Kinase Inhibition with Short-Duration Hypothermia on Ca2+/Calmodulin Kinase IV Activity and Neuropathology after Hypoxia-Ischemia in the Newborn Swine Brain. AB - BACKGROUND: Hypoxia-ischemia (HI) results in increased activation of Ca2+/calmodulin kinase IV (CaM kinase IV) mediated by Src kinase. Therapeutic hypothermia ameliorates neuronal injury in the newborn. HYPOTHESIS: Inhibition of Src kinase concurrently with hypothermia further attenuates the hypoxia-induced increased activation of CaM kinase IV compared with hypothermia alone. DESIGN/METHODS: Ventilated piglets were exposed to HI, received saline or a selective Src kinase inhibitor (PP2), and were cooled to 33 degrees C. Neuropathology, adenosine triphosphate (ATP) and phosphocreatine (PCr) concentrations, and CaM kinase IV activity were determined. RESULTS: The neuropathology mean score (mean +/- SD) was 0.4 +/- 0.43 in normoxia-normothermia (p < 0.05 vs. hypoxia-normothermia), 3.5 +/- 0.89 in hypoxia-normothermia (p < 0.05 vs. normoxia-normothermia), 0.7 +/- 0.73 in hypoxia-hypothermia (p < 0.05 vs. normoxia-normothermia), and 0.5 +/- 0.70 in normoxia-hypothermia (p < 0.05 vs. hypoxia-normothermia). The CaM kinase IV activity in cerebral tissue (pmol Pi/mg protein/min; mean +/- SD) was 2,002 +/- 729 in normoxia-normothermia, 1,704 +/- 18 in normoxia-hypothermia, 6,017 +/- 2,510 in hypoxia-normothermia, 4,104 +/ 542 in hypoxia-hypothermia (p < 0.05 vs. normoxia-hypothermia), and 2,165 +/- 415 in hypoxia-hypothermia with PP2 (p < 0.05 vs. hypoxia-hypothermia). The hypoxic groups with and without hypothermia or Src kinase inhibitor were comparable in the levels of ATP and PCr, indicating that they were similar in their degree of energy failure prior to treatments. Hypothermia or Src kinase inhibitor (PP2) did not restore the ATP and PCr levels. CONCLUSIONS: Hypothermia and Src kinase inhibition attenuated apoptotic cell death and improved neuropathology after hypoxia. The combination of short-duration hypothermia with Src kinase inhibition following hypoxia further attenuates the increased activation of CaM kinase IV compared to hypothermia alone in the newborn swine brain. PMID- 29024931 TI - Brain Metastases from Biliary Tract Cancer: A Monocentric Retrospective Analysis of 450 Patients. AB - OBJECTIVE: Brain metastases (BMs) from biliary tract cancer (BTC) are extremely rare. The aim of our study was to report the incidence of BMs in patients with BTC. METHODS: We retrospectively analyzed a series of 450 patients with BTC. Presence of brain lesions was investigated only when symptoms were evident. Cumulative incidence, median overall survival (OS) from detection of BMs, median OS from cancer diagnosis, and median time from cancer diagnosis to detection of BMs were evaluated. RESULTS: In our series, 6 patients developed BMs with an incidence of about 1.4%. Median OS from detection of BMs and from cancer diagnosis was, respectively, 3.7 (0.9-17.8) and 23 (9.9-57.6) months. Median time between cancer diagnosis and detection of BMs was 13.6 (7.3-52.8) months. Moreover, we observed a significant association between BMs and bone metastases (particularly vertebral lesions). DISCUSSION: Despite the retrospective design, this is the first study evaluating the incidence of BMs among patients with BTC in Western countries. BMs from BTC remain atypical, although their incidence is probably a little higher than previously assumed. Patients with BMs had poor prognosis. Unpredictably, bone involvement occurred in 5 out of 6 patients. PMID- 29024933 TI - Erratum. PMID- 29024934 TI - The Relationship between Vitamin D and Type 2 Diabetes Is Intriguing: Glimpses from the Spect-China Study. AB - OBJECTIVE: Vitamin D is a multifunctional vitamin for our body. Type 2 diabetes mellitus (T2DM) is a common metabolic disease. Whether T2DM affects the serum 25(OH)D level has not been reported. The objective of this study was to reveal the extent to which vitamin D is present in the population in East China and to explore the relationship between serum 25(OH)D and T2DM. METHODS: The cohort was selected based on a large investigation named Survey on Prevalence in East China including 12,702 participants aged 21-92 years old. All the participants completed the questionnaire and went through a physical examination. Fasting blood samples were collected to test serum 25(OH)D and other metabolism-related indicators. AVONA was used to test the significance of differences among groups. Multinomial logistic regression was used to assess the association of T2DM with serum 25(OH)D level. RESULTS: The overall percentage of vitamin D deficiency was 80.55% (male 74.1%, female 85.0%). Men with lower serum 25(OH)D level had high value in homeostasis model assessment of insulin resistance and HbA1c. The serum 25(OH)D level of those who were diagnosed with T2DM was higher than that in non diabetics. The serum 25(OH)D level of pre-diabetes was the highest. T2DM patients trended to have higher serum 25(OH)D levels. CONCLUSION: Vitamin D deficiency is common among the people in East-China. T2DM patients had higher levels of serum 25(OH)D. The relationship between vitamin D and T2DM is intriguing. It seemed that vitamin D was either irrelevant directly to T2DM or resisted in T2DM patients. PMID- 29024935 TI - Venous Thromboembolism and the Risk of Death and Graft Loss in Kidney Transplant Recipients. AB - BACKGROUND: The implications of venous thromboembolism (VTE) for morbidity and mortality in kidney transplant recipients are not well described. METHODS: We conducted a retrospective study using linked healthcare databases in Ontario, Canada to determine the risk and complications of VTE in kidney transplant recipients from 2003 to 2013. We compared the incidence rate of VTE in recipients (n = 4,343) and a matched (1:4) sample of the general population (n = 17,372). For recipients with evidence of a VTE posttransplant, we compared adverse clinical outcomes (death, graft loss) to matched (1:2) recipients without evidence of a VTE posttransplant. RESULTS: During a median follow-up of 5.2 years, 388 (8.9%) recipients developed a VTE compared to 254 (1.5%) in the matched general population (16.3 vs. 2.4 events per 1,000 person-years; hazard ratio [HR] 7.1, 95% CI 6.0-8.4; p < 0.0001). Recipients who experienced a posttransplant VTE had a higher risk of death (28.5 vs. 11.2%; HR 4.1, 95% CI 2.9 5.8; p < 0.0001) and death-censored graft loss (13.1 vs. 7.5%; HR 2.3, 95% CI 1.4 3.6; p = 0.0006) compared to matched recipients who did not experience a posttransplant VTE. CONCLUSIONS: Kidney transplant recipients have a sevenfold higher risk of VTE compared to the general population with VTE conferring an increased risk of death and graft loss. PMID- 29024936 TI - Glucose insult elicits hyperactivation of cancer stem cells through miR-424-cdc42 prdm14 signalling axis. AB - BACKGROUND: Meta-analysis shows that women with diabetes have a 20% increased risk of breast cancer and also an increased risk for distant metastasis and mortality. The molecular mechanisms for distant metastasis and mortality in breast cancer patients with diabetes are not very well understood. METHODS: We compared the effect of physiological (5 mM) and diabetic (10 mM) levels of glucose on malignant breast epithelial cell invasion and stemness capabilities. We performed microRNA array to determine the dysregulated microRNAs in hyperglycaemic conditions and performed functional and molecular analysis of the gene targets. RESULTS: Hyperglycaemia leads to hyperactivation of cancer stem cell pool and enhances invasive ability of breast cancer cells. MiR-424 seems to be a key regulator of cancer cell stemness and invasion. Knockdown of miR-424 in cancer cells under euglycaemic conditions leads to enhanced invasion and stem cell activity, whereas ectopic expression of miR-424 in cancer cells under hyperglycaemic conditions results in suppressed invasion and stem cell activity. Cdc42, a target of miR-424, influences cancer stem cell activity by positively regulating prdm14 through activation of pak1 (p-21-activated kinase 1) and stat5. CONCLUSIONS: Our findings establish miR-424->?cdc42->?prdm14 axis as a key molecular signalling cascade that might influence breast cancer progression in diabetic patients through hyperactivation of cancer stem cells. PMID- 29024937 TI - Protein biomarkers predictive for response to anti-EGFR treatment in RAS wild type metastatic colorectal carcinoma. AB - BACKGROUND: Metastatic colorectal cancer (mCRC) patients with mutant KRAS or NRAS are ineligible for anti-epidermal growth factor receptor (anti-EGFR) therapy, as RAS mutations activate downstream pathways independently of EGFR and induce primary resistance. However, even among RAS wild-type (WT) patients, only a fraction responds to anti-EGFR therapy, suggesting that other mechanisms of resistance exist. We hypothesise that different (epi)genetic alterations can lead to primary anti-EGFR resistance and that the crucial end point is the activation of protein signalling pathways. METHODS: We analysed the expression and activation of proteins involved in cell signalling, using reverse phase protein arrays, on a multicentre French cohort of RAS WT mCRC treated with anti-EGFR treatment. RESULTS: We identify activated EGFR and HER3 as protein biomarkers predictive for better overall survival. Active EGFR signalling and downstream PI3K, but not MAPK, pathway activation are associated with response to anti-EGFR treatment. Left-sided mCRC displays active ErbB2/3 and Wnt pathways and a better response to anti-EGFR therapy compared to right-sided mCRC. CONCLUSIONS: We identify active EGFR and PI3K signalling as a key factor for response to anti EGFR treatment in mCRC and highlight the importance of developing these biomarkers in clinical practice for the selection of RAS WT mCRC patients that would benefit from anti-EGFR treatment. PMID- 29024939 TI - Ailanthone inhibits non-small cell lung cancer cell growth through repressing DNA replication via downregulating RPA1. AB - BACKGROUND: The identification of bioactive compounds from Chinese medicine plays a crucial role in the development of novel reagents against non-small lung cancer (NSCLC). METHODS: High throughput screening assay and analyses of cell growth, cell cycle, apoptosis, cDNA microarray, BrdU incorporation and gene expression were performed. RESULTS: Ailanthone (Aila) suppressed NSCLC cell growth and colony formation in vitro and inhibited NSCLC tumour growth in subcutaneously xenografted and orthotopic lung tumour models, leading to prolonged survival of tumour-bearing mice. Moreover, Aila induced cell cycle arrest in a dose independent manner but did not induce apoptosis in all NSCLC cells. Furthermore, 1222 genes were differentially expressed upon Aila administration, which were involved in 21 signal pathways, such as DNA replication. In addition, Aila dose dependently decreased BrdU incorporation and downregulated the expression of replication protein A1 (RPA1). CONCLUSIONS: Aila inhibited the growth of NSCLC cells through the repression of DNA replication via downregulating RPA1, rather than through cell cycle arrest and apoptosis. Our findings suggested that Aila could be used as a promising therapeutic candidate for NSCLC patients. PMID- 29024938 TI - Expression and role of TYRO3 and AXL as potential therapeutical targets in leiomyosarcoma. AB - BACKGROUND: Leiomyosarcoma (LMS) are 15% of adult sarcomas and remain seldom curable in metastatic phase. The TAM receptors and their ligands are overexpressed or activated in multiple malignancies, including LMS. METHODS: The TAM receptor and ligand expression was evaluated in LMS cell lines and 358 sarcoma samples by either gene expression or immunohistochemistry. TYRO3 and AXL were knocked down. Crizotinib and foretinib were investigated in vitro. RESULTS: High expression of TYRO3 and AXL was detected in LMS cell lines. TYRO3 or AXL gene knockdown reduced cell proliferation/colony formation. Crizotinib and foretinib decreased TYRO3 and AXL phosphorylation, apoptosis, G2/arrest and reduced colony formation. Immunohistochemistry performed in 107 sarcomas showed higher expression of TYRO3 and GAS6 in LMS vs other sarcomas and nuclear TYRO3 only in LMS. Microarray gene expression performed in 251 sarcomas revealed significantly higher expression of TYRO3 and GAS6 in LMS than other sarcomas. Leiomyosarcoma patients with high expression of GAS6 or PROS1 present a significantly worse PFS. CONCLUSIONS: Leiomyosarcoma patients, especially those whom develop metastasis, express higher levels of TYRO3 and GAS6. Crizotinib and foretinib showed effective antitumour activity in LMS through TYRO3 and AXL deactivation indicating that clinical trials using TYRO3 and AXL inhibitors are warranted in advanced LMS. PMID- 29024940 TI - ANO9/TMEM16J promotes tumourigenesis via EGFR and is a novel therapeutic target for pancreatic cancer. AB - BACKGROUND: Anoctamin (ANO)/transmembrane member 16 (TMEM16) proteins mediate diverse physiological and pathophysiological functions including cancer cell proliferation. The present study aimed to identify the role of ANOs in pancreatic cancer. METHODS: In an initial screen of ANOs, ANO9/TMEM16J was overexpressed in pancreatic cancer cells, and its role in the pathogenesis of pancreatic cancer was evaluated using an integrated in vitro and in vivo approach. To determine clinical relevance of the experimental findings, the prognostic value of ANO9 was evaluated in patients with pancreatic cancer. RESULTS: The ANO9 mRNA and protein levels were increased in pancreatic cancer-derived cells. Exogenous expression of ANO9 in PANC-1 cells significantly increased cell proliferation in cell cultures and in mice. In contrast, knockdown of ANO9 in AsPC-1, BxPC-3, and Capan-2 cells strongly inhibited cell proliferation. Mechanistic analysis suggested that physical association of ANO9 with epidermal growth factor receptor (EGFR) underlies ANO9-induced cell proliferation. Knockdown of ANO9 augmented the effects of the EGFR inhibitor and the cytotoxic agent on pancreatic cancer cell proliferation. In addition, high ANO9 expression is a poor prognostic factor in patients with pancreatic cancer. CONCLUSIONS: The ANO9/TMEM16J appears to be a clinically useful prognostic marker for pancreatic cancer and a potential therapeutic target. PMID- 29024941 TI - In-depth proteomic analysis of tissue interstitial fluid for hepatocellular carcinoma serum biomarker discovery. AB - BACKGROUND: Hepatocellular carcinoma (HCC) is a primary malignancy of the liver. New serum biomarkers for HCC screening are needed, especially for alpha fetoprotein (AFP) negative patients. As a proximal fluid between body fluids and intracellular fluid, tissue interstitial fluid (TIF) is a suitable source for serum biomarker discovery. METHODS: Sixteen paired TIF samples from HCC tumour and adjacent non-tumour tissues were analysed by isobaric tags for relative and absolute quantitation (iTRAQ) method. Two proteins were selected for ELISA validation in serum samples. RESULTS: Totally, 3629 proteins were identified and 3357 proteins were quantified in TIF samples. Among them, 232 proteins were significantly upregulated in HCC-TIF and 257 proteins down-regulated. Two overexpressed extracellular matrix proteins, SPARC and thrombospondin-2 (THBS2) were selected for further validation. ELISA result showed that the serum levels of SPARC and THBS2 in HCC patients were both significantly higher than those in healthy controls. The combination of serum SPARC and THBS2 could distinguish HCC (AUC=0.97, sensitivity=86%, specificity=100%) or AFP-negative HCC (AUC=0.95, sensitivity=91%, specificity=93%) from healthy controls. And the combination of serum SPARC and THBS2 could also distinguish HCC patients from benign liver disease patients (AUC=0.93, sensitivity=80%, specificity=94%). In addition, serum THBS2 was found to be a novel independent indicator for poor prognosis of HCC. CONCLUSIONS: Novel HCC candidate serum markers were found through in-depth proteomic analysis of TIF, which demonstrated the successful utility of TIF in cancer serum biomarker discovery. PMID- 29024948 TI - HDSS Profile: The South East Asia Community Observatory Health and Demographic Surveillance System (SEACO HDSS). PMID- 29024942 TI - Loss of Myosin Vb in colorectal cancer is a strong prognostic factor for disease recurrence. AB - BACKGROUND: Selecting the most beneficial treatment regimens for colorectal cancer (CRC) patients remains challenging due to a lack of prognostic markers. Members of the Myosin family, proteins recognised to have a major role in trafficking and polarisation of cells, have recently been reported to be closely associated with several types of cancer and might thus serve as potential prognostic markers in the context of CRC. METHODS: We used a previously established meta-analysis of publicly available gene expression data to analyse the expression of different members of the Myosin V family, namely MYO5A, 5B, and 5C, in CRC. Using laser-microdissected material as well as tissue microarrays from paired human CRC samples, we validated both RNA and protein expression of Myosin Vb (MYO5B) and its known adapter proteins (RAB8A and RAB25) in an independent patient cohort. Finally, we assessed the prognostic value of both MYO5B and its adapter-coupled combinatorial gene expression signatures. RESULTS: The meta-analysis as well as an independent patient cohort study revealed a methylation-independent loss of MYO5B expression in CRC that matched disease progression. Although MYO5B mutations were identified in a small number of patients, these cannot be solely responsible for the common downregulation observed in CRC patients. Significantly, CRC patients with low MYO5B expression displayed shorter overall, disease-, and metastasis-free survival, a trend that was further reinforced when RAB8A expression was also taken into account. CONCLUSIONS: Our data identify MYO5B as a powerful prognostic biomarker in CRC, especially in early stages (stages I and II), which might help stratifying patients with stage II for adjuvant chemotherapy. PMID- 29024947 TI - Human trophoblast-derived hydrogen sulfide stimulates placental artery endothelial cell angiogenesis. AB - Endogenous hydrogen sulfide (H2S), mainly synthesized by cystathionine beta synthase (CBS) and cystathionine gamma-lyase (CTH), has been implicated in regulating placental angiogenesis; however, the underlying mechanisms are unknown. This study was to test a hypothesis that trophoblasts synthesize H2S to promote placental angiogenesis. Human choriocarcinoma-derived BeWo cells expressed both CBS and CTH proteins, while the first trimester villous trophoblast-originated HTR-8/SVneo cells expressed CTH protein only. The H2S producing ability of BeWo cells was significantly inhibited by either inhibitors of CBS (carboxymethyl hydroxylamine hemihydrochloride, CHH) or CTH (beta-cyano-L alanine, BCA) and that in HTR-8/SVneo cells was inhibited by CHH only. H2S donors stimulated cell proliferation, migration, and tube formation in ovine placental artery endothelial cells (oFPAECs) as effectively as vascular endothelial growth factor. Co-culture with BeWo and HTR-8/SVneo cells stimulated oFPAEC migration, which was inhibited by CHH or BCA in BeWo but CHH only in HTR-8/SVneo cells. Primary human villous trophoblasts (HVT) were more potent than trophoblast cell lines in stimulating oFPAEC migration that was inhibited by CHH and CHH/BCA combination in accordance with its H2S synthesizing activity linked to CBS and CTH expression patterns. H2S donors activated endothelial nitric oxide synthase (NOS3), v-AKT murine thymoma viral oncogene homolog 1 (AKT1), and extracellular signal-activated kinase 1/2 (mitogen-activated protein kinase 3/1, MAPK3/1) in oFPAECs. H2S donor-induced NOS3 activation was blocked by AKT1 but not MAPK3/1 inhibition. In keeping with our previous studies showing a crucial role of AKT1, MAPK3/1, and NOS3/NO in placental angiogenesis, these data show that trophoblast derived endogenous H2S stimulates placental angiogenesis, involving activation of AKT1, NOS3/NO, and MAPK3/1. PMID- 29024949 TI - Nutritional optimization during neoadjuvant therapy prior to surgical resection of esophageal cancer-a narrative review. AB - This narrative review aims to evaluate the evidence for the different nutritional approaches employed during neoadjuvant therapy in patients with locoregional esophageal cancer. Patients with esophageal cancer are often malnourished and difficult to optimize nutritionally. While evidence suggests that neoadjuvant therapy can offer a survival advantage, associated toxicity can exacerbate poor nutritional status. There is currently no accepted standard of care regarding optimal nutritional approach. A systematic literature search was undertaken. Studies describing the utilization of an additional nutritional intervention in patients with esophageal cancer receiving neoadjuvant therapy prior to esophagectomy were included. Primary outcome measure was 30-day postoperative mortality after esophagectomy. Secondary outcome measures were loss of weight during neoadjuvant therapy, completion rate of intended neoadjuvant therapy, complications from nutritional intervention, 30-day postoperative morbidity after esophagectomy and quality of life during neoadjuvant treatment. Given the heterogeneity of retrieved articles results was presented as a narrative review. Twenty-five studies were included of which 16 evaluated esophageal stenting, four feeding jejunostomy, three gastrostomy, one nasogastric feeding, and one comparative study of esophageal stenting to feeding jejunostomy. 30-day postoperative mortality was only reported in two of the 26 included studies limiting comparison between nutritional strategies. All studies of esophageal stents reported improvements in dysphagia with reported weight change ranging from -5.4 to +6 kg and one study reported 30-day postoperative mortality after esophagectomy (10%). In patients undergoing esophageal stenting for their neoadjuvant treatment overall migration rate was 29.9%. Studies of laparoscopically inserted jejunostomy were all retrospective reviews that demonstrated an increase in weight ranging from 0.4 to 11.8 kg and similarly no study reported 30-day postoperative mortality. Only one comparative study was included that compared esophageal stents to jejunostomy. This study reported no significant difference between the two groups in respect to complication rates (stents 22% vs. jejunostomy 4%, P = 0.11) or increase in weight (stents 4.4 kg vs. jejunostomy 4.2 kg, P = 0.59). Quality of life was also poorly reported. This review demonstrates the uncertainty on the optimal nutritional approach for patients with resectable esophageal cancer undergoing neoadjuvant treatment prior to esophagectomy. A prospective, multicenter, observational cohort study is needed to determine current practice and inform a prospective clinical trial. PMID- 29024950 TI - Serious danger signals: Response to: The effect of neonatal vitamin A supplementation on morbidity and mortality at 12 months: a randomized trial. PMID- 29024952 TI - A novel reporter mouse to monitor in vivo retrotransposition in the germline. PMID- 29024951 TI - Bans of WHO Class I Pesticides in Bangladesh-suicide prevention without hampering agricultural output. AB - Background: Pesticide self-poisoning is a major problem in Bangladesh. Over the past 20-years, the Bangladesh government has introduced pesticide legislation and banned highly hazardous pesticides (HHPs) from agricultural use. We aimed to assess the impacts of pesticide bans on suicide and on agricultural production. Methods: We obtained data on unnatural deaths from the Statistics Division of Bangladesh Police, and used negative binomial regression to quantify changes in pesticide suicides and unnatural deaths following removal of WHO Class I toxicity HHPs from agriculture in 2000. We assessed contemporaneous trends in other risk factors, pesticide usage and agricultural production in Bangladesh from 1996 to 2014. Results: Mortality in hospital from pesticide poisoning fell after the 2000 ban: 15.1% vs 9.5%, relative reduction 37.1% [95% confidence interval (CI) 35.4 to 38.8%]. The pesticide poisoning suicide rate fell from 6.3/100 000 in 1996 to 2.2/100 000 in 2014, a 65.1% (52.0 to 76.7%) decline. There was a modest simultaneous increase in hanging suicides [20.0% (8.4 to 36.9%) increase] but the overall incidence of unnatural deaths fell from 14.0/100 000 to 10.5/100 000 [25.0% (18.1 to 33.0%) decline]. There were 35 071 (95% CI 25 959 to 45 666) fewer pesticide suicides in 2001 to 2014 compared with the number predicted based on trends between 1996 to 2000. This reduction in rate of pesticide suicides occurred despite increased pesticide use and no change in admissions for pesticide poisoning, with no apparent influence on agricultural output. Conclusions: Strengthening pesticide regulation and banning WHO Class I toxicity HHPs in Bangladesh were associated with major reductions in deaths and hospital mortality, without any apparent effect on agricultural output. Our data indicate that removing HHPs from agriculture can rapidly reduce suicides without imposing substantial agricultural costs. PMID- 29024953 TI - RE: Anal cancer: different epidemiological and clinical definitions. PMID- 29024954 TI - Physical activity: A primary health quality determinant among community-dwelling geriatric women in Taiwan. AB - Objective: To investigate the associations between frailty, physical activity and depression in community-dwelling geriatric women. Design: A cross-sectional research design. Setting: Community geriatric women in Illan County, Taiwan. Study participants: Of note 216 participants, 65 years and older with full mobility, independent and able to communicate in Mandarin or Taiwanese Hokkien. Main Outcome Measures: An average weekly physical activity score International Physical Activity Questionnaire-Short Form (IPAQ-SF) and Taiwan Geriatric Depression Scale. Classification and regression tree (CART) analysis was used to perform decision analysis. Results: The average IPAQ-SF score for the 216 participants was 9109.52. When an IPAQ-SF score of 4452 or below was obtained by participants, 38% of them encountered depression-like syndromes, regardless of their frailty status. Diabetes, high risk of metabolic syndrome and lower education were the risk factors found to cause depression among participants with low physical activity levels. Conclusions: As women have a longer life expectancy and experience twice the rates of depression of men particularly after menopause, healthcare providers should emphasize exercise and lifestyle changes in order to improve the quality of health in geriatric women. PMID- 29024956 TI - Lessons learned from piloting mHealth informatics practice curriculum into a medical elective. AB - Introduction: This case study reports the development and delivery of an mHealth elective piloted for first-year undergraduate medical students at Monash University (Australia) and the lessons learned by designers. Results: The students were not as adept at using mHealth devices as the literature had predicted. Expert speakers using mHealth for practice perceptibly engaged students. Force-field analysis was a useful basis for devising end-user evaluative research tools for practice. Combining small- and large-group discussions with eLearning discussions promoted student engagement with new concepts and associated jargon. Assessment by mHealth informatics champions supported the students' independent learning. Lessons learned: Promotion of mHealth curriculum must be transparent and clear. Our elective delivery was hampered by a lack of suitable mobile device ownership and limited availability of useful, free apps. Technological jargon required clarification. Educators require particular mHealth informatics and educational expertise to support mHealth pedagogies. This learning helps to prepare medical curriculum designers for addressing evolving mHealth practice horizons. PMID- 29024957 TI - Cohort Profile: The Hong Kong Osteoporosis Study and the follow-up study. PMID- 29024955 TI - Offspring risk of obesity in childhood, adolescence and adulthood in relation to gestational diabetes mellitus: a sex-specific association. AB - Background: Animal data suggest sexually dimorphic programming of obesity in response to altered intrauterine environment, but the longitudinal impact of gestational diabetes mellitus (GDM) on sex-specific risk of offspring obesity in humans is unclear. Methods: We conducted a prospective analysis of 15 009 US individuals (7946 female and 7063 male) from the Growing-Up Today Study, who were followed from 1996 (ages 9-14 years) through 2010. Height and weight from validated questionnaires were used to derive body mass index (BMI) at different ages. Obesity during childhood (< 18 years) and adulthood (>= 18 years) were defined using the International Obesity Task Force and the World Health Organization criteria. GDM exposure was identified through self-reported questionnaires from mothers. Relative risks were estimated using multivariable log-binomial regression models with generalized estimating equations accounting for clustering within the same family. Results: Male offspring born from pregnancies complicated by GDM had higher BMI compared with non-GDM offspring and had increased risk of obesity; the adjusted relative risk [RR, 95% confidence interval (CI)] was 1.47 (1.11-1.95) for all age groups, 1.59 (1.05-2.41) for late childhood, 1.48 (1.06-2.06) for adolescence and 1.39 (1.00-1.94) for early adulthood. No significant association between obesity and maternal GDM was observed among female participants (RR = 0.97, 95% CI: 0.71-1.33). Conclusions: The association of GDM with offspring obesity from late childhood through early adulthood may differ by sex; a significant association was observed among male but not female offspring. PMID- 29024958 TI - A computable pathology report for precision medicine: extending an observables ontology unifying SNOMED CT and LOINC. AB - Background: The College of American Pathologists (CAP) introduced the first cancer synoptic reporting protocols in 1998. However, the objective of a fully computable and machine-readable cancer synoptic report remains elusive due to insufficient definitional content in Systematized Nomenclature of Medicine - Clinical Terms (SNOMED CT) and Logical Observation Identifiers Names and Codes (LOINC). To address this terminology gap, investigators at the University of Nebraska Medical Center (UNMC) are developing, authoring, and testing a SNOMED CT observable ontology to represent the data elements identified by the synoptic worksheets of CAP. Methods: Investigators along with collaborators from the US National Library of Medicine, CAP, the International Health Terminology Standards Development Organization, and the UK Health and Social Care Information Centre analyzed and assessed required data elements for colorectal cancer and invasive breast cancer synoptic reporting. SNOMED CT concept expressions were developed at UNMC in the Nebraska Lexicon(c) SNOMED CT namespace. LOINC codes for each SNOMED CT expression were issued by the Regenstrief Institute. SNOMED CT concepts represented observation answer value sets. Results: UNMC investigators created a total of 194 SNOMED CT observable entity concept definitions to represent required data elements for CAP colorectal and breast cancer synoptic worksheets, including biomarkers. Concepts were bound to colorectal and invasive breast cancer reports in the UNMC pathology system and successfully used to populate a UNMC biobank. Discussion: The absence of a robust observables ontology represents a barrier to data capture and reuse in clinical areas founded upon observational information. Terminology developed in this project establishes the model to characterize pathology data for information exchange, public health, and research analytics. PMID- 29024959 TI - Limb Laterality Recognition Score: A Reliable Clinical Measure Related to Phantom Limb Pain. AB - Objective: To explore the usefulness of the limb laterality recognition score as a clinical measure of phantom limb pain, regarding test-retest reliability and association of limb laterality recognition scores with phantom limb pain measures. Design: Retrospective cohort. Setting: Community support group. Subjects: Eleven adults who averaged 4.8 years since lower limb amputation due to vascular pathologies (N = 9), trauma (N = 1), and cancer (N = 1). Methods: Subjects self-reported amputated limb pain using the sensation subsection of the Prosthetic Evaluation Questionnaire and back and sound limb pain. Using numbered iPads that corresponded to the self-reports, subjects played the Recognise Foot game to assess limb laterality recognition ability. Subjects identified the laterality of 20 foot images, within two seconds each. The software collected accuracy and speed scores in basic, vanilla, and context conditions for two rounds in random order. Basic showed feet against black backgrounds, vanilla showed feet with various monochromatic backgrounds, and context showed feet in clothed or environmental contexts. So that greater accuracy in less time meant a better score, accuracy scores were divided by completion speed. Intraclass correlation coefficient (ICC)3,1 assessed test-retest reliability. Correlations between accuracy/speed and phantom limb pain measures were assessed with Spearman's rho (categorical) and Pearson coefficients (continuous). Results: Accuracy/speed test-retest reliability was strong (ICC = 0.72) and inversely associated with phantom limb pain frequency (context rho = 0.72). Conclusions: Limb laterality recognition accuracy/speed in the context condition had good test retest reliability and correlated strongly with phantom limb pain frequency. Accuracy/speed limb laterality recognition ability relates to phantom limb pain and may be a valid clinical or research measure. PMID- 29024960 TI - How to identify potentially preventable readmissions by classifying them using a national administrative database. AB - Importance: Hospital readmissions are being used increasingly as an indicator of quality of care. However, it remains difficult to identify potentially preventable readmissions. Objectives: To evaluate the identification of potentially preventable hospital readmissions by using a classification of readmissions based on administrative data. Design and setting: We classified a random sample of 455 readmissions to a Dutch university hospital in 2014 using administrative data. We compared these results to a classification based on reviewing the medical records of these readmissions to evaluate the accuracy of classification by administrative data. Main outcome measures: Frequencies of categories of readmissions based on reviewing records versus those based on administrative data. Cohen's kappa for the agreement between both methods. The sensitivity and specificity of the identification of potentially preventable readmissions with classification by administrative data. Results: Reviewing the medical records of acute readmissions resulted in 28.5% of the records being classified as potentially preventable. With administrative data this was 44.1%. There was slight agreement between both methods: k 0.08 (95% CI: 0.02-0.15, P < 0.05). The sensitivity of the classification of potentially preventable readmissions by administrative data was 63.1% and the specificity was 63.5%. Conclusions: This explorative study demonstrated differences between categorizing readmissions based on reviewing records compared to using administrative data. Therefore, this tool can only be used in practice with great caution. It is not suitable for penalizing hospitals based on their number of potentially preventable readmissions. However, hospitals might use this classification as a screening tool to identify potentially preventable readmissions more efficiently. PMID- 29024961 TI - Epidural Fat and Its Association with Pain, Physical Function, and Disability Among Older Adults with Low Back Pain and Controls. AB - Objective: To examine epidural fat and its relationship to pain, physical function, and disability among older adults with chronic low back pain, chronic low back pain plus leg pain, and controls. Design: Cross-sectional, comparative study. Setting: Standardized examinations were conducted in a research laboratory, and magnetic resonance images were obtained. Subjects: A total of 93 adults age 60 to 85 years (24 with chronic back pain, 25 with chronic back pain plus leg pain, and 44 controls). Methods: Reliability for assessment of epidural fat diameter, averaged across spinal levels, was established (intraclass correlation coefficient = 0.95). Linear regression was used to explore how epidural fat diameter related to self-reported (Short Form-36 Health Survey: physical component summary score) and performance-based (stair climb performance) measures of physical function among adults with chronic back pain with and without leg pain, as compared with controls, while controlling for age, sex, and body mass index. Associations between epidural fat and pain intensity and low back pain-related disability were also explored (P <= 0.050). Results: Epidural fat helped explain self-reported function (P < 0.001); adults with axial low back pain (LBP) may have a relationship between epidural fat and self-report function that is different from controls (P = 0.015). Relationships between epidural fat and stair performance were significantly different from controls for those with LBP (P = 0.000) but not for those with LBP plus leg pain (P = 0.366). Relationships between epidural fat and pain intensity and/or disability were not found. Conclusions: Increased epidural fat may help explain better function among older adults with chronic axial back pain, but not among those who also report leg pain. PMID- 29024962 TI - Age-Related Changes in Headache Days across the Cognitive Spectrum. AB - Introduction: Prior studies demonstrating age-related declines in headache prevalence have not accounted for the potentially confounding effects of cognitive impairment. Our primary goal was to assess the relationship between aging and self-reported monthly headache days across the cognitive spectrum. Methods: A detailed headache questionnaire was included prospectively as part of an annual mailing to participants in the Sanders-Brown Center on Aging longitudinal cohort. Results: The overall survey response rate was 58.6%, yielding a cohort of 332 cognitively normal, 71 mild cognitive impairment (median Mini-Mental Status Examination [MMSE] score = 27, interquartile range [IQR] = 25 28), and 51 demented (median MMSE score = 24, IQR = 19-26) individuals. Current headaches were reported by 22.8%, 25%, and 27.1%, respectively, across normal, mild cognitive impairment, and dementia subgroups. A negative correlation was observed between age and average headache days in cognitively normal (rho = 0.163, 95% confidence interval [CI] = -0.246 to -0.022, P = 0.004), mild cognitive impairment (rho = -0.255, 95% CI = -0.274 to 0.229, P = 0.0475), and dementia groups (rho = -0.295, 95% CI = -0.457 to 0.159, P = 0.068). Ordinary least-squares regression with backward selection identified age alone, but not gender or MMSE, as predicting headache days in the overall cohort. Conclusions: Aging is associated with a decline in headache days in the absence of any confounding cognitive pathology and is weakly predictive of headache days across the cognitive spectrum. Whether this represents a reporting bias due to dementia or has neurobiological significance warrants further investigation. PMID- 29024963 TI - Blue sclera secondary to severe iron deficiency anemia. PMID- 29024965 TI - Use of POCUS Ultrasound in sepsis, bedside diagnosis of necrotizing fasciitis. PMID- 29024964 TI - A single unit transfusion policy reduces red cell transfusions in general medical in-patients. AB - Background: The NICE guidelines for blood transfusion and the patient blood management recommendations state that a single unit of red cells should be the standard dose for patients with stable anaemia who are not bleeding. Studies have shown that changing clinical transfusion practice can be difficult and that many clinicians' order two units of blood as standard for patients needing a transfusion. Aim: A collaborative project between NHS Blood and Transplant and Kings College Hospital started in September 2014 to evaluate the impact of a single unit policy on blood usage. Design Methods: Training and education was undertaken for clinical staff on eight general medical wards and all staff working in the blood transfusion laboratory. We collected transfusion data for 12 months, (6 months before and after implementation). Results: There was a decrease of 50% red cell unit usage between the two periods, equating to a unit cost saving of L28 670. The number of single unit transfusions, increased from 30 to 53% whilst the number of two units decreased from 65 to 43% (P < 0.001). Discussion/Conclusion: This project has shown that transfusion practice can be changed and savings in blood usage can be achieved through the successful implementation of the single unit transfusions policy. Key to the implementation was engagement from key medical staff within the medical department in which the policy was implemented and support from the hospital transfusion team. Continued attention and training shall be needed to support these, and implement other, patient blood management recommendations. PMID- 29024967 TI - Atypical macrophages in disseminated Mycobacterium intracellulare infection. PMID- 29024966 TI - Premature coronary artery disease and early stage chronic kidney disease. AB - A 30 year old asymptomatic male with stage 3 chronic kidney disease (CKD) secondary to Focal Segmental Glomerulosclerosis was found to have features of CKD associated cardiomyopathy including left ventricular hypertrophy (LVH) and focal sub-endocardial scarring on cardiac magnetic resonance imaging. There was also a significantly raised CT coronary calcium score and evidence of non-flow limiting coronary artery disease (CAD) on a CT coronary angiogram. Early stage CKD is a major risk factor for cardiovascular risk causing myocardial hypertrophy and fibrosis and coronary artery atheroma. Cardiovascular risk begins to increase from an eGFR of around 75ml/min/1.73m2. The pathophysiology of cardiovascular disease in CKD is under investigation but to date, treatment options are limited. Blood pressure control and statins have the strongest supportive evidence. PMID- 29024968 TI - Iron suppresses ovarian granulosa cell proliferation and arrests cell cycle through regulating p38 mitogen-activated protein kinase/p53/p21 pathway. AB - Iron is an essential nutrient that may exert toxic effects when it accumulates in tissues. Little is known regarding its effects on gonadal function. Both Fe2+ and Fe3+ could be released from iron deposition. We employed mouse nonluteinized granulosa cell for in vitro studies and human ovarian tissues for Prussian blue and immunohistochemical staining to identify the iron deposition and effect in vivo. After treatment with FeSO4-7H2O or FeCl3 in granulosa cell cultured with follicle-stimulating hormone (FSH) for 48 h, we found that Fe2+ significantly suppressed FSH-induced granulosa cell proliferation and arrested the cell cycle at the G2/M phase by cell proliferation assay and flow cytometry. Fe2+ significantly increased intracellular reactive oxygen species (ROS) and ferritin levels of mouse granulosa cells. The increases in p21 and p53 messenger RNA and protein expression facilitated by Fe2+ treatment in mouse granulosa cells were significantly suppressed by separate treatments with p53 small interfering RNA and p38 mitogen-activated protein kinase (MAPK) inhibitors. An ROS inhibitor downregulated Fe2+-induced increases in p38MAPK expression in mouse granulosa cells. Quantitative analysis of immunohistochemical staining revealed that human ovarian tissue sections with positive Prussian blue staining had lower levels of proliferating cell nuclear antigen expression, but higher levels of p21, p53, and CDC25C expression than those with negative Prussian blue staining. Conclusively, Fe2+ could directly arrest the cell cycle and inhibit granulosa cell proliferation by regulating the ROS-mediated p38MAPK/p53/p21 pathway. Therefore, iron can directly affect female gonadal function. PMID- 29024970 TI - Microfluidics-based digital quantitative PCR for single-cell small RNA quantification. AB - Quantitative analyses of small RNAs at the single-cell level have been challenging because of limited sensitivity and specificity of conventional real time quantitative PCR methods. A digital quantitative PCR (dqPCR) method for miRNA quantification has been developed, but it requires the use of proprietary stem-loop primers and only applies to miRNA quantification. Here, we report a microfluidics-based dqPCR (mdqPCR) method, which takes advantage of the Fluidigm BioMark HD system for both template partition and the subsequent high-throughput dqPCR. Our mdqPCR method demonstrated excellent sensitivity and reproducibility suitable for quantitative analyses of not only miRNAs but also all other small RNA species at the single-cell level. Using this method, we discovered that each sperm has a unique miRNA profile. PMID- 29024969 TI - Preconception urinary phthalate concentrations and sperm DNA methylation profiles among men undergoing IVF treatment: a cross-sectional study. AB - STUDY QUESTION: Are preconception phthalate and phthalate replacements associated with sperm differentially methylated regions (DMRs) among men undergoing IVF? SUMMARY ANSWER: Ten phthalate metabolites were associated with 131 sperm DMRs that were enriched in genes related to growth and development, cell movement and cytoskeleton structure. WHAT IS KNOWN ALREADY: Several phthalate compounds and their metabolites are known endocrine disrupting compounds and are pervasive environmental contaminants. Rodent studies report that prenatal phthalate exposures induce sperm DMRs, but the influence of preconception phthalate exposure on sperm DNA methylation in humans is unknown. STUDY DESIGN, SIZE, DURATION: An exploratory cross-sectional study with 48 male participants from the Sperm Environmental Epigenetics and Development Study (SEEDS). PARTICIPANTS/MATERIALS, SETTING, METHODS: The first 48 couples provided a spot urine sample on the same day as semen sample procurement. Sperm DNA methylation was assessed with the HumanMethylation 450 K array. Seventeen urinary phthalate and 1,2-Cyclohexane dicarboxylic acid diisononyl ester (DINCH) metabolite concentrations were measured from spot urine samples. The A-clust algorithm was employed to identify co-regulated regions. DMRs associated with urinary metabolite concentrations were identified via linear models, corrected for false discovery rate (FDR). MAIN RESULTS AND ROLE OF CHANCE: Adjusting for age, BMI, and current smoking, 131 DMRs were associated with at least one urinary metabolite. Most sperm DMRs were associated with anti-androgenic metabolites, including mono(2-ethylhexyl) phthalate (MEHP, n = 83), mono(2-ethyl-5-oxohexyl) phthalate (MEOHP, n = 16), mono-n-butyl phthalate (MBP, n = 22) and cyclohexane 1,2-dicarboxylic acid-monocarboxy isooctyl (MCOCH, n = 7). The DMRs were enriched in lincRNAs as well as in regions near coding regions. Functional analyses of DMRs revealed enrichment of genes related to growth and development as well as cellular function and maintenance. Finally, 13% of sperm DMRs were inversely associated with high quality blastocyst-stage embryos after IVF. LIMITATIONS, REASONS FOR CAUTION: Our modest sample size only included 48 males and additional larger studies are necessary to confirm our observed results. Non-differential misclassification of exposure is also a concern given the single spot urine collection. WIDER IMPLICATIONS OF THE FINDINGS: To our knowledge, this is the first study to report that preconception urinary phthalate metabolite concentrations are associated with sperm DNA methylation in humans. These results suggest that paternal adult environmental conditions may influence epigenetic reprogramming during spermatogenesis, and in turn, influence early-life development. STUDY FUNDING/COMPETING INTEREST(S): This work was supported by grant K22-ES023085 from the National Institute of Environmental Health Sciences. The authors declare no competing interests. PMID- 29024971 TI - Early predictors of Guillain-Barre syndrome in the life course of women. AB - Background: We sought to determine if immune disorders early in life were associated with the later risk of Guillain-Barre syndrome, a neurological disorder thought to be infection-related. Methods: We conducted a longitudinal cohort study with 16 108 819 person-years of follow-up for a population of 1 108 541 parous women in Quebec, Canada (1989-2014). The outcome was Guillain-Barre syndrome. We identified women with potential risk factors for future Guillain Barre syndrome, including immune-mediated and rheumatological diseases, cancer, transfusion, surgical procedures and pregnancy-specific disorders. We estimated hazard ratios (HR) and 95% confidence intervals (CI) for the association of risk factors with later onset of Guillain-Barre syndrome, adjusted for personal characteristics of women. Results: The overall incidence of Guillain-Barre syndrome was 1.42 per 100 000 person-years. Incidence was higher for women with immune-mediated (8.79 per 100 000 person-years) and rheumatological disorders (9.84 per 100 000 person-years), transfusion (4.41 per 100 000 person-years), and preeclampsia (2.62 per 100 000 person-years). Immune-mediated disorders were associated with six times the risk of Guillain-Barre syndrome (HR 6.57, 95% CI 3.58 to 12.04), rheumatological disorders with seven times the risk (HR 7.23, 95% CI 3.21 to 16.28), transfusion three times the risk (HR 3.58, 95% CI 1.83 to 6.98) and preeclampsia two times the risk (HR 2.01, 95% CI 1.29 to 3.12). Women with other potential risk factors did not have an increased risk of Guillain Barre syndrome. Conclusions: Immune-related conditions that occur early in life are associated with an increased risk of Guillain-Barre syndrome. The pathophysiology of Guillain-Barre syndrome may extend beyond infectious triggers. PMID- 29024972 TI - Effect of metabolic status on conceptus-maternal interactions on day 19 in dairy cattle: II. Effects on the endometrial transcriptome. AB - The aim of this study was to test the hypothesis that the metabolic stresses associated with lactation alter the ability of the endometrium to respond appropriately to the conceptus by examining endometrial gene expression on day 19 of pregnancy. Immediately after calving, primiparous Holstein cows with similar production and fertility estimated breeding values were randomly divided into two groups and either dried off (i.e. never milked) immediately or milked twice daily. Approximately 65-75 days postpartum, grade 1 blastocysts recovered from superovulated Holstein heifer donors (n = 5) were transferred (1 per recipient) into lactating (n = 11) and nonlactating (n = 11) recipients. Control nulliparous Holstein heifers (n = 6) were artificially inseminated. RNA-sequencing was performed on intercaruncular endometrial samples recovered at slaughter from confirmed pregnant animals on day 19 (n = 5 lactating and nonlactating cows; n = 4 heifers). Differentially expressed genes (DEGs) were identified between both postpartum groups compared to heifers and between lactating and nonlactating cows. Functional annotation of DEGs between cows and heifers revealed over representation of categories, including endosome, cytoplasmic vesicle, endocytosis, regulation of exocytosis, and cytokine receptor activity. Functional categories including transcription factor binding sites, cell motility, and cell migration were enriched for DEGs between endometria from lactating and nonlactating cows. In conclusion, while the evidence for a major effect of lactation on the endometrial transcriptome is relatively weak, these data suggest that the metabolic status of the animal (heifer vs cow) modulates the response of the endometrium to the developing conceptus. PMID- 29024973 TI - Re-employment, job quality, health and allostatic load biomarkers: prospective evidence from the UK Household Longitudinal Study. AB - Background: There is little evidence on whether becoming re-employed in poor quality work is better for health and well-being than remaining unemployed. We examined associations of job transition with health and chronic stress-related biomarkers among a population-representative cohort of unemployed British adults. Methods: A prospective cohort of 1116 eligible participants aged 35 to 75 years, who were unemployed at wave 1 (2009/10) of the UK Household Longitudinal Study, were followed up at waves 2 (2010/11) and 3 (2011/12) for allostatic load biomarkers and self-reported health. Negative binomial and multiple regression models estimated the association between job adversity and these outcomes. Results: Compared with adults who remained unemployed, formerly unemployed adults who transitioned into poor quality jobs had higher levels of overall allostatic load (0.51, 0.32-0.71), log HbA1c (0.06, <0.001-0.12), log triglycerides (0.39, 0.22-0.56), log C-reactive protein (0.45, 0.16-0.75), log fibrinogen (0.09, 0.01 0.17) and total cholesterol to high-density lipoprotein (HDL) ratio (1.38, 0.88 1.88). Moreover, physically healthier respondents at wave 1 were more likely to transition into good quality and poor quality jobs after 1 year than those who remained unemployed. Conclusions: Formerly unemployed adults who transitioned into poor quality work had greater adverse levels of biomarkers compared with their peers who remained unemployed. The selection of healthier unemployed adults into these poor quality or stressful jobs was unlikely to explain their elevated levels of chronic stress-related biomarkers. Job quality cannot be disregarded from the employment success of the unemployed, and may have important implications for their health and well-being. PMID- 29024976 TI - A conceptual framework for evaluating data suitability for observational studies. AB - Objective: To contribute a conceptual framework for evaluating data suitability to satisfy the research needs of observational studies. Materials and Methods: Suitability considerations were derived from a systematic literature review on researchers' common data needs in observational studies and a scoping review on frequent clinical database design considerations, and were harmonized to construct a suitability conceptual framework using a bottom-up approach. The relationships among the suitability categories are explored from the perspective of 4 facets of data: intrinsic, contextual, representational, and accessible. A web-based national survey of domain experts was conducted to validate the framework. Results: Data suitability for observational studies hinges on the following key categories: Explicitness of Policy and Data Governance, Relevance, Availability of Descriptive Metadata and Provenance Documentation, Usability, and Quality. We describe 16 measures and 33 sub-measures. The survey uncovered the relevance of all categories, with a 5-point Likert importance score of 3.9 +/- 1.0 for Explicitness of Policy and Data Governance, 4.1 +/- 1.0 for Relevance, 3.9 +/- 0.9 for Availability of Descriptive Metadata and Provenance Documentation, 4.2 +/- 1.0 for Usability, and 4.0 +/- 0.9 for Quality. Conclusions: The suitability framework evaluates a clinical data source's fitness for research use. Its construction reflects both researchers' points of view and data custodians' design features. The feedback from domain experts rated Usability, Relevance, and Quality categories as the most important considerations. PMID- 29024975 TI - Comparing methods to address bias in observational data: statin use and cardiovascular events in a US cohort. AB - Background: The theoretical conditions under which causal estimates can be derived from observational data are challenging to achieve in the real world. Applied examples can help elucidate the practical limitations of methods to estimate randomized-controlled trial effects from observational data. Methods: We used six methods with varying design and analytic features to compare the 5-year risk of incident myocardial infarction among statin users and non-users, and used non-cardiovascular mortality as a negative control outcome. Design features included restriction to a statin-eligible population and new users only; analytic features included multivariable adjustment and propensity score matching. Results: We used data from 5294 participants in the Cardiovascular Health Study from 1989 to 2004. For non-cardiovascular mortality, most methods produced protective estimates with confidence intervals that crossed the null. The hazard ratio (HR) was 0.92, 95% confidence interval: 0.58, 1.46 using propensity score matching among eligible new users. For myocardial infarction, all estimates were strongly protective; the propensity score-matched analysis among eligible new users resulted in a HR of 0.55 (0.29, 1.05)-a much stronger association than observed in randomized controlled trials. Conclusions: In designs that compare active treatment with non-treated participants to evaluate effectiveness, methods to address bias in observational data may be limited in real-world settings by residual bias. PMID- 29024977 TI - Safer paediatric surgical teams: A 5-year evaluation of crew resource management implementation and outcomes. AB - Objective: Evaluate longitudinal changes in technical and non-technical skills (teamwork, situation monitoring, communication and leadership), safety culture, and clinical outcomes before and after implementation of a crew resource management (CRM) safety program. Design: A multi-level prospective single case study in accordance with the SQUIRE-guidelines for reporting quality improvement efforts. Setting: Large university paediatric surgical service. Participant(s): All 153 managers and staff. Interventions: Training of staff in CRM, systematic risk assessments, and the redesign of work practices captured and reinforced through the development, implementation and refinement of SOPs. Main Outcome Measure(s): Data were collected related to: 1) Relevance of CRM training (survey), 2) Safety culture (survey), 3) Team behaviours in clinical practice (non-participatory observations with MedPACT protocol) and 4) Effects on perioperative care for laparoscopic appendectomies-a representative and frequently performed surgical procedure (electronic medical records and administrative data for length of stay, unplanned readmissions and returns to the Operating Room). Results: Non-technical skills, the use of safety tools, as well as adherence to guidelines for appendectomies all improved significantly over time. Significant safety culture improvements were found in teamwork across and within units, supervisors' expectations and actions, non-punitive response to adverse events, and perceptions of overall patient safety. Unplanned readmissions following appendectomy declined significantly. Conclusions: Implementation of a comprehensive CRM program including associated safety tools created sustained adherence to new work practices and improved non-technical and technical skills, surgical outcomes and safety culture. PMID- 29024974 TI - Functional Recovery in Major Depressive Disorder: Providing Early Optimal Treatment for the Individual Patient. AB - Major depressive disorder is an often chronic and recurring illness. Left untreated, major depressive disorder may result in progressive alterations in brain morphometry and circuit function. Recent findings, however, suggest that pharmacotherapy may halt and possibly reverse those effects. These findings, together with evidence that a delay in treatment is associated with poorer clinical outcomes, underscore the urgency of rapidly treating depression to full recovery. Early optimized treatment, using measurement-based care and customizing treatment to the individual patient, may afford the best possible outcomes for each patient. The aim of this article is to present recommendations for using a patient-centered approach to rapidly provide optimal pharmacological treatment to patients with major depressive disorder. Offering major depressive disorder treatment determined by individual patient characteristics (e.g., predominant symptoms, medical history, comorbidities), patient preferences and expectations, and, critically, their own definition of wellness provides the best opportunity for full functional recovery. PMID- 29024979 TI - Are Opioids Really Safe in Patients with Congestive Heart Failure? PMID- 29024978 TI - Incidence rate estimation, periodic testing and the limitations of the mid-point imputation approach. AB - Background: It is common to use the mid-point between the latest-negative and earliest-positive test dates as the date of the infection event. However, the accuracy of the mid-point method has yet to be systematically quantified for incidence studies once participants start to miss their scheduled test dates. Methods: We used a simulation-based approach to generate an infectious disease epidemic for an incidence cohort with a high (80-100%), moderate (60-79.9%), low (40-59.9%) and poor (30-39.9%) testing rate. Next, we imputed a mid-point and random-point value between the participant's latest-negative and earliest positive test dates. We then compared the incidence rate derived from these imputed values with the true incidence rate generated from the simulation model. Results: The mid-point incidence rate estimates erroneously declined towards the end of the observation period once the testing rate dropped below 80%. This decline was in error of approximately 9%, 27% and 41% for a moderate, low and poor testing rate, respectively. The random-point method did not introduce any systematic bias in the incidence rate estimate, even for testing rates as low as 30%. Conclusions: The mid-point assumption of the infection date is unjustified and should not be used to calculate the incidence rate once participants start to miss the scheduled test dates. Under these conditions, we show an artefactual decline in the incidence rate towards the end of the observation period. Alternatively, the single random-point method is straightforward to implement and produces estimates very close to the true incidence rate. PMID- 29024980 TI - Comorbid Pain Syndromes in HIV-Associated Peripheral Neuropathy. AB - Objective: Peripheral neuropathy (PN) is a common complication of HIV. There is increasing awareness that some forms of PN, particularly small-fiber neuropathies, can be associated with chronic widespread pain syndromes. Given the high prevalence of both PN and chronic pain in HIV, we sought to determine whether patients with a diagnosis of HIV-PN were more likely to experience other chronic pain syndromes. Methods: Data were obtained from the Clinical Data Warehouse maintained by our institution. All HIV-infected patients receiving standard of care antiretroviral therapy in our institution's primary care HIV clinic (N = 638) were included. Diagnoses of HIV-PN and other chronic pain disorders were established based on clinician-assigned ICD-9/10 codes. Results: Sixty-eight patients (11%) had a diagnosis of HIV-PN. Patients with HIV-PN were more than twice as likely to have other chronic pain disorders (66% vs 32%, chi2 = 30.3, P < 0.001). Patients with HIV-PN were also older and more likely to have substance use and psychiatric disorders; however, the association of HIV-PN with other chronic pain disorders persisted after adjusting for relevant confounders (chi2(5) = 81.38, P < 0.001). Conclusions: Patients with HIV-PN commonly experience other chronic pain disorders. Clinicians managing HIV-PN should seek a broad understanding of patients' pain experience as this may alter management strategies. Researchers studying HIV-PN should consider how the presence of other pain disorders might affect outcomes. PMID- 29024981 TI - Diabetes in pregnancy: worse medical outcomes in type 1 diabetes but worse psychological outcomes in gestational diabetes. AB - Background: Women with diabetes experience an increased risk of adverse pregnancy outcomes. Aim: We aim to describe and quantify the psychological impact of the diagnosis of diabetes in pregnant women with type 1 diabetes and gestational diabetes mellitus (GDM) compared to each other and to their counterparts without diabetes. Design: This is a survey-based study with prospective collection of pregnancy outcome data. Methods: A total of 218 pregnant women (50% with diabetes) were administered questionnaires relating to psychological health. Maternal and neonatal characteristics and pregnancy outcomes were collected. Associations between key psychometric and health outcome variables were examined. Results: At least 25% of women in all three pregnancy groups had scores indicating affective distress in at least one domain. Compared to those with type 1 diabetes, women with GDM evidenced a greater number of uplifts in pregnancy (U = 94, P = 0.041), but also higher levels of overall anxiety (U = 92, P = 0.03) and stress (U = 82, P < 0.01). Women with GDM also had significantly elevated overall depression scores, compared with the control group (U = 34, P = 0.02). Both groups of women with diabetes had clinically elevated levels of diabetes related distress. There were no associations between maternal psychological variables and pregnancy outcomes. Conclusions: This work highlights a potential role for targeted psychological interventions to address and relieve symptoms of anxiety and depression among pregnant women with diabetes. PMID- 29024983 TI - 24/7 Consultant working in the NHS: 12 years experience in intensive care. PMID- 29024982 TI - Re-examining the link between prenatal maternal anxiety and child emotional difficulties, using a sibling design. AB - Background: Prenatal exposure to maternal anxiety has been associated with child emotional difficulties in a number of epidemiological studies. One key concern, however, is that this link is vulnerable to confounding by pleiotropic genes or environmental family factors. Methods: Data on 82 383 mothers and children from the population-based Mother and Child Cohort Study and data on 21 980 siblings were used in this study. Mothers filled out questionnaires for each unique pregnancy, for infant difficulties at 6 months and for emotional difficulties at 36 months. The link between prenatal maternal anxiety and child difficulties were examined using logistic regression analyses and multiple linear regression analyses for the full study sample and the sibling sample. Results: In the conventional full-cohort analyses, prenatal exposure to maternal anxiety was associated with child difficulties at both 6 months [odds ratio (OR) = 2.1 (1.94 2.27)] and 36 months [OR = 2.72 (2.47-2.99)]. The findings were essentially the same whether we examined difficulties at 6 months or at 36 months. However, these associations were no longer present once we controlled for potential social and genetic confounders in the sibling comparison analyses, either at 6 months [OR = 1.32 (0.91-1.90)] or at 36 months [OR = 1.28 (0.63-2.60)]. Findings from multiple regression analyses with continuous measures were essentially the same. Conclusions: Our finding lends little support for there being an independent prenatal effect on child emotional difficulties; rather, our findings suggest that the link between prenatal maternal anxiety and child difficulties could be confounded by pleiotropic genes or environmental family factors. PMID- 29024984 TI - Prevention of and dealing with poor performance: an interview study about how professional associations aim to support healthcare professionals. AB - Objective: To explore how professional associations of nine healthcare professions aim to support professionals to prevent and deal with poor performance. Design: Qualitative interview study. Setting: The Netherlands. Participants: Representatives of professional associations for dentists, general practitioners, medical specialists, midwives, nurses, pharmacists, physiotherapists, psychologists and psychotherapists. Interventions: During nine face-to-face semi-structured interviews we asked how associations aim to support professionals in prevention of and dealing with poor performance. Following the first interview, we monitored new initiatives in support over a 2.5-year period, after which we conducted a second interview. Interviews were analysed using thematic analysis. Main outcome measures: Available policy and support regarding poor performance. Results: Three themes emerged from our data (i.e. elaborating on professional performance, performance insight and dealing with poor performance) for which we identified a total of 10 categories of support. Support concerned professional codes, guidelines and codes of conduct, quality registers, individual performance assessment, peer consultation, practice evaluation, helpdesk and expert counselling, a protocol for dealing with poor performance, a place for support and to report poor performance, and internal disciplinary procedures. Conclusions: This study provides an overview of support given to nine healthcare professions by their associations regarding poor performance, and identifies gaps that associations could follow up on, such as clarifying what to do when confronted with a poorly performing colleague, supporting professionals that poorly perform, and developing methods for individual performance assessment to gain performance insight. A next step would be to evaluate the use and effect of different types of support. PMID- 29024985 TI - Transient global amnesia: clinical and imaging features. PMID- 29024987 TI - Development and Validation of an Eight-Item Brief Form of the SOAPP-R (SOAPP-8). AB - Objective: Although the Screener and Opioid Assessment for Patients with Pain Revised (SOAPP-R) has become a widely used screener for aberrant opioid-related behavior in adults, the length of the instrument may limit its utility. The purpose of the current study was to develop a short form of the SOAPP-R by retaining as few items as possible while maximizing predictive accuracy. Methods: Participants (N = 555), recruited from pain clinics, completed the 24-item SOAPP R and participated in a five-month follow-up visit to evaluate aberrant drug related behaviors. Opioid aberrant-related behavior was determined through self report, physician report, and urine toxicology screen. The optimal subset of SOAPP-R items to predict aberrant opioid-related behavior was identified empirically by employing the LASSO selection method and the leave-one-out cross validation (LOOCV) method offered in the GLMSELECT procedure in SAS 9.4 in conjunction with content expertise. Results: Eight items were identified before the selection method stopped. The receiver operating characteristic curve generated from the predicted probabilities from the model produced an area under the curve (AUC) value greater than the AUC value produced by the 24-item SOAPP-R total score and yielded a sensitivity of 0.74 and a specificity of 0.66. Conclusions: These results provide strong preliminary support for the SOAPP-8 as a brief screening tool of aberrant opioid-related behavior in chronic pain patients. PMID- 29024986 TI - Stromal fibroblasts from perimenopausal endometrium exhibit a different transcriptome than those from the premenopausal endometrium. AB - Human endometrium undergoes extensive regeneration on a cyclic basis in premenopausal women and likely occurs through the contribution of stem/progenitor cells. Menopause results in the permanent cessation of menstrual cycles and is preceded by perimenopause, a period of several years in which endocrine and biological changes occur and is a period of risk for endometrial proliferative disorders. The objectives of this study were to identify endometrial mesenchymal stem cells (eMSC) and endometrial stromal fibroblasts (eSF) in endometrium of perimenopausal women and perform expression profile analysis of perimenopausal eMSC and eSF to gain insight into the biology of stem/progenitor and lineage cell populations during the transition to menopause. Endometrial tissue was collected from perimenopausal and premenopausal women (n = 9 each). Microarray analysis was performed on fluorescence-activated cell sorting-isolated eSF and eMSC, and data were validated by quantitative real-time PCR. Principal component analysis showed that cells clustered into three distinct groups in 3-dimensional space: perimenopausal eMSC and premenopausal eMSC clustered together, while perimenopausal eSF and premenopausal eSF formed two discrete clusters separate from eMSC. Hierarchical clustering revealed a branching pattern consistent with principle clustering analysis results, indicating that eMSC from premenopausal and perimenopausal women exhibit similar transcriptomic signatures. Pathway analysis revealed dysregulation of cytoskeleton, proliferation, and survival pathways in perimenopausal vs. premenopausal eSF. These data demonstrate that cell populations have altered gene expression in perimenopausal vs. premenopausal endometrium, and that perimenopausal eSF had altered pathway activation when compared to premenopausal eSF. This study provides insight into aging endometrium with relevance to function in reproductively older women. PMID- 29024989 TI - Suggested Reporting Guidelines to Improve Health-Related Social Work Research. PMID- 29024988 TI - Low-dose metronomic delivery of cyclophosphamide is less detrimental to granulosa cell viability, ovarian function, and fertility than maximum tolerated dose delivery in the mouse. AB - Chemotherapy can cause early menopause or infertility in women and have a profound negative impact on the quality of life of young female cancer survivors. Various factors are known to influence the risk of chemotherapy-induced ovarian failure, including the drug dose and treatment duration; however, the scheduling of dose administration has not yet been evaluated as an independent risk factor. We hypothesized that low-dose metronomic (LDM) chemotherapy scheduling would be less detrimental to ovarian function than the traditional maximum tolerated dose (MTD) strategy. In vitro, MTD cyclophosphamide exposure resulted in decreased proliferation and increased granulosa cell apoptosis, while cells treated with LDM cyclophosphamide were not different from untreated controls. Treatments of MTD cyclophosphamide induced high levels of follicle atresia and enhanced follicle recruitment in mice. In contrast, LDM delivery of an equivalent dose of cyclophosphamide reduced growing follicle numbers, but was not associated with higher levels of follicle atresia or recruitment. MTD cyclophosphamide induced significant vascular disruption and DNA damage in vivo, while LDM chemotherapy with equal cumulative amounts of cyclophosphamide was not different from controls. MTD chemotherapy also had a negative effect on mouse-fertility outcomes. Our findings suggest that LDM scheduling could potentially minimize the long-term effects of cyclophosphamide on female fertility by preventing follicle depletion from enhanced activation. PMID- 29024990 TI - Myocarditis and purpura fulminans in meningococcaemia. PMID- 29024991 TI - Association between pre-pregnancy overweight and obesity and children's neurocognitive development: a systematic review and meta-analysis of observational studies. PMID- 29024992 TI - Formation and function of sperm tail structures in association with sperm motility defects. AB - Male infertility is an increasing problem partly due to inherited genetic variations. Mutations in genes involved in formation of the sperm tail cause motility defects and thus male infertility. Therefore, it is crucial to understand the protein networks required for sperm differentiation. Sperm motility is produced through activation of the sperm flagellum, which core structure, the axoneme, resembles motile cilia. In addition to this, cytoskeletal axonemal structure sperm tail motility requires various accessory structures. These structures are important for the integrity of the long tail, sperm capacitation, and generation of energy during sperm passage to fertilize the oocyte. This review discusses the current knowledge of mechanisms required for formation of the sperm tail structures and their effect on fertility. The recent research based on animal models and genetic variants in relation to sperm tail formation and function provides insights into the events leading to fertile sperm production. Here we compile a view of proteins involved in sperm tail development and summarize the current knowledge of factors contributing to reduced sperm motility, asthenozoospermia, underline the mechanisms which require further research, and discuss related clinical aspects on human male infertility. PMID- 29024993 TI - Ultrasonographic findings as diagnostic and follow-up tool in cranial giant cell arteritis. PMID- 29024994 TI - Pancreatic cancer incidence rises also in Italy. PMID- 29024995 TI - The equity impact of community women's groups to reduce neonatal mortality: a meta-analysis of four cluster randomized trials. AB - Background: Socioeconomic inequalities in neonatal mortality are substantial in many developing countries. Little is known about how to address this problem. Trials in Asia and Africa have shown strong impacts on neonatal mortality of a participatory learning and action intervention with women's groups. Whether this intervention also reduces mortality inequalities remains unknown. We describe the equity impact of this women's groups intervention on the neonatal mortality rate (NMR) across socioeconomic strata. Methods: We conducted a meta-analysis of all four participatory women's group interventions that were shown to be highly effective in cluster randomized trials in India, Nepal, Bangladesh and Malawi. We estimated intervention effects on NMR and health behaviours for lower and higher socioeconomic strata using random effects logistic regression analysis. Differences in effect between strata were tested. Results: Analysis of 69120 live births and 2505 neonatal deaths shows that the intervention strongly reduced the NMR in lower (50-63% reduction depending on the measure of socioeconomic position used) and higher (35-44%) socioeconomic strata. The intervention did not show evidence of 'elite-capture': among the most marginalized populations, the NMR in intervention areas was 63% lower [95% confidence interval (CI) 48-74%] than in control areas, compared with 35% (95% CI: 15-50%) lower among the less marginalized in the last trial year ( P -value for difference between most/less marginalized: 0.009). The intervention strongly improved home care practices, with no systematic socioeconomic differences in effect. Conclusions: Participatory women's groups with high population coverage benefit the survival chances of newborns from all socioeconomic strata, and perhaps especially those born into the most deprived households. PMID- 29024996 TI - Encephalitis after influenza and vaccination: a nationwide population-based registry study from Norway. AB - Background: Influenza is known to be associated with various neurological complications, including encephalitis. We conducted a registry-based study to assess the risk of encephalitis after influenza and A(H1N1)pdm09 vaccine. Methods: Data from Norwegian national health registries during 2008-14 were linked using the unique personal identifiers given to all Norwegian residents (N = 5 210 519). Cox proportional-hazard models with time-varying variables were fitted to estimate hazard ratios (HRs) of encephalitis after influenza and A(H1N1)pdm09 vaccine, using the risk windows 0-7, 0-14, 0-30, 0-60, 0-90 and 0 180 days. Results: In Norway, 684 172 individuals received an influenza diagnosis and 2793 patients were hospitalized with encephalitis during 2008-14. The risk of encephalitis increased after influenza: HR, 7-day risk window: 47.8 (95% confidence interval (CI): 35.8-63.8), and the HR decreased for longer risk windows; HR, 180-day risk window: 3.8 (95% CI: 3.1-4.7). HR of encephalitis after influenza during the 2009 main pandemic wave using a 7-day risk window was 30.0 (95% CI: 10.8-83.2). We found no differences in the risk of encephalitis after the seasonal influenza compared with influenza during the 2009 main pandemic wave; HR, 7-day risk window: 1.3 (95% CI: 0.4-4.3). A(H1N1)pdm09 vaccine was not associated with the risk of encephalitis: HR, 14-day risk window: 0.6 (95% CI: 0.2-2.1). Conclusions: There was an increased risk of encephalitis following influenza but not after A(H1N1)pdm09 vaccine. The risk of encephalitis was highest in the first few weeks after influenza. PMID- 29024997 TI - Evaluation of the effects of the French pay-for-performance program-IFAQ pilot study. AB - Objective: Most studies showed no or little effect of pay-for-performance (P4P) programs on different outcomes. In France, the P4P program IFAQ was generalized to all acute care hospitals in 2016. A pilot study was launched in 2012 to design, implement and assess this program. This article aims to assess the immediate impact of the 2012-14 pilot study. Design and setting: From nine process quality indicators (QIs), an aggregated score was constructed as the weighted average, taking into account both achievement and improvement. Among 426 eligible volunteer hospitals, 222 were selected to participate. Eligibility depended on documentation of QIs and results of hospital accreditation. Hospitals with scores above the median received a financial reward based on their ranking and budget. Several characteristics known to have an influence on P4P results (patient age, socioeconomic status, hospital activity, casemix and location) were used to adjust the models. Intervention: To assess the effect of the program, comparison between the 185 eligible selected hospitals and the 192 eligible not selected volunteers were done using the difference-in-differences method. Results: Whereas all hospitals improved from 2012 to 2014, the difference-in differences effect was positive but not significant both in the crude (2.89, P = 0.29) and adjusted models (4.07, P = 0.12). Conclusion: These results could be explained by several reasons: low level of financial incentives, unattainable goals, too short study period. However, the lack of impact for the first year should not undermine the implementation of other P4P programs. Indeed, the pilot study helped to improve the final model used for generalization. PMID- 29024998 TI - Response to: 'Serious danger signals', response to: 'The effect of neonatal vitamin A supplementation on morbidity and mortality at 12 months: a randomized trial'. PMID- 29024999 TI - The Great Recession and inequalities in access to health care: a study of unemployment and unmet medical need in Europe in the economic crisis. AB - Background: Unmet medical need (UMN) had been declining steadily across Europe until the 2008 Recession, a period characterized by rising unemployment. We examined whether becoming unemployed increased the risk of UMN during the Great Recession and whether the extent of out-of-pocket payments (OOP) for health care and income replacement for the unemployed (IRU) moderated this relationship. Methods: We used the European Survey on Income and Living Conditions (EU-SILC) to construct a pseudo-panel (n = 135 529) across 25 countries to estimate the relationship between unemployment and UMN. We estimated linear probability models, using a baseline of employed people with no UMN, to test whether this relationship is mediated by financial hardship and moderated by levels of OOP and IRU. Results: Job loss increased the risk of UMN [beta = 0.027, 95% confidence interval (CI) 0.022-0.033] and financial hardship exacerbated this effect. Fewer people experiencing job loss lost access to health care in countries where OOPs were low or in countries where IRU is high. The results are robust to different model specifications. Conclusions: Unemployment does not necessarily compromise access to health care. Rather, access is jeopardized by diminishing financial resources that accompany job loss. Lower OOPs or higher IRU protect against loss of access, but they cannot guarantee it. Policy solutions should secure financial protection for the unemployed so that resources do not have to be diverted from health. PMID- 29025000 TI - The Relationship of Auriculotemporal Neuralgia and Epicrania Fugax. PMID- 29025001 TI - Using patient-reported outcome measurement to improve patient care. AB - Patients at the center of care is often the stated focus of clinicians and healthcare services. The quality and safety movement has shown that effective organization of care is needed, in addition to professional skills. This movement has provided professionals and others with methods to improve both organization and practice for patients. These methods include measurement to give those carrying out improvement feedback about the effects of their changes. New types of measures that enable patients to report treatment outcomes can now be use in quality improvement and quality reporting to bring a renewed focus on making care more patient-centered. Although used for some time in research, these measures are relatively new tools for quality improvement and not all research measures are suitable for everyday feedback or improvement projects. The purpose of the paper is to provide an introduction to the use and value of patient-reported outcome measures in quality improvement and to give practical guidance and resources for using PROMs for quality improvement. It draws on the authors' experiences using patient reported outcomes measures for quality research and improvement and their workshop at the 2016 Tokyo ISQUA conference, as well as on reviews and guidance documents about the use of PROMs. It does not provide a comprehensive and systematic review of research, but an overview and introduction to PROMs for quality improvement. PMID- 29025002 TI - Assessing the quality of administrative data for research: a framework from the Manitoba Centre for Health Policy. AB - The growth of administrative data repositories worldwide has spurred the development and application of data quality frameworks to ensure that research analyses based on these data can be used to draw meaningful conclusions. However, the research literature on administrative data quality is sparse, and there is little consensus regarding which dimensions of data quality should be measured. Here we present the core dimensions of the data quality framework developed at the Manitoba Centre for Health Policy, a world leader in the use of administrative data for research purposes, and provide examples and context for the application of these dimensions to conducting data quality evaluations. In sharing this framework, our ultimate aim is to promote best practices in rigorous data quality assessment among users of administrative data for research. PMID- 29025003 TI - Internal carotid artery dissection and Villeret's syndrome. PMID- 29025006 TI - Increased risk of subdural hematoma in patients with liver cirrhosis. AB - Background: Subdural hematoma (SDH) is associated with a high mortality rate. The risk of SDH in cirrhotic patients has not been well studied. Aim: The aim of the study was to examine the risk of SDH in cirrhotic patients. Design: A retrospective study from a universal insurance claims database of Taiwan. Methods: A cohort of 9455 liver cirrhotic patients from 2000 to 2011 and an age and sex-matched control cohort of 35992 subjects without cirrhosis were identified. The severity of liver cirrhosis was classified into uncomplicated and complicated according to presence of complications or not. The incidence and hazard ratio of SDH were measured by the end of 2011. Results: The mean follow-up years were 4.34+/-3.45 years in the cirrhosis cohort and 6.36+/-3.28 years in the non-cirrhosis cohort. The incidence of SDH was 2.73-fold higher in the cirrhosis cohort than in the control cohort (29.3 vs. 10.9 per 10000 person-years), with an adjusted hazard ratio of 2.73 (95% CI = 2.19-3.42), 2.42 (95% CI = 1.89-3.08), and 5.07 (95% CI = 3.38-7.60) in the all liver cirrhosis, the uncomplicated liver cirrhosis, and the complicated liver cirrhosis patients compared to the control cohort. The adjusted hazard ratios were 2.65 (95% CI 2.06-3.41) for traumatic SDH and 3.09 (95% CI 1.91- 5.02) for non-traumatic SDH in liver cirrhosis patients, compared to the controls. Conclusions: This study demonstrates that patients with cirrhosis are at higher risk of both traumatic and non-traumatic SDH than individuals without cirrhosis. The risk increases further in patients with complicated liver cirrhosis. PMID- 29025005 TI - Correlation of Pain Reduction with fMRI BOLD Response in Osteoarthritis Patients Treated with Paracetamol: Randomized, Double-Blind, Crossover Clinical Efficacy Study. AB - Objective: To assess the relationship between the analgesic efficacy of extended release paracetamol (ER-APAP) and brain blood oxygen level-dependent (BOLD) signal activation in response to painful stimulation measured by functional magnetic resonance imaging (fMRI) in patients with osteoarthritis of the knee. Methods: This placebo-controlled, double-blind, crossover, randomized trial (N = 25) comprised three treatment periods in which patients received four doses of an eight-hour ER-APAP caplet (2 x 665 mg), four doses of matched placebo, and no treatment. Pain intensity of the knee was measured before and after painful stimulation at the knee with osteoarthritis and before and after fMRI. Results: ER-APAP significantly reduced prestimulation osteoarthritis knee joint pain compared with baseline (P < 0.003) and placebo (P < 0.004). ER-APAP and placebo significantly reduced knee joint pain after stimulation (P = 0.014 and P = 0.032, respectively); however, pain reduction with ER-APAP was 35% greater than placebo. ER-APAP was associated with significant reductions in BOLD signal activation after stimulation compared with control in the sensory cortex (P = 0.002) and supramarginal gyrus (P = 0.003). Reduction in BOLD signal activation after stimulation for placebo was significantly greater than control in the subgenual prefrontal cortex (P < 0.001), frontal cortex (P < 0.001), insula (P < 0.003), and sensory cortex (P < 0.001). Conclusions: ER-APAP had a significantly greater effect than placebo and no treatment in reducing knee pain, which was associated with reduced BOLD signal activations in pain pathways, including the sensory cortex and supramarginal gyrus. BOLD observations after placebo treatment may shed light on the role of the brain regions potentially involved in placebo response in clinical trials investigating pain therapies. PMID- 29025007 TI - Erratum. PMID- 29025008 TI - Cardiopulmonary interactions with beta-blockers and inhaled therapy in COPD. AB - Background: Beta-blockers remain underused in patients with chronic obstructive pulmonary disease (COPD) and cardiovascular disease. Aim: We compared how different inhaled therapies affect tolerability of bisoprolol and carvedilol in moderate to severe COPD. Design: A randomized, open label, cross-over study. Methods: We compared the cardiopulmonary interactions of bisoprolol 5 mg qd or carvedilol 12.5 mg bid for 6 weeks in conjunction with: (i) triple: inhaled corticosteroid/long acting beta-agonist/long acting muscarinic antagonist (ICS + LABA + LAMA), (ii) dual: ICS + LABA and (iii) ICS alone. Results: Eighteen patients completed, all ex-smokers, mean age 65 years, forced expiratory volume in 1 s (FEV1) 52% predicted. Bisoprolol and carvedilol produced comparable significant reduction in resting and exercise heart rate. FEV1, forced vital capacity and lung compliance (AX) were significantly lower with carvedilol vs. bisoprolol while taking concomitant ICS/LABA ( P < 0.05) but not ICS/LABA/LAMA. Conclusions: In summary, bisoprolol was better tolerated than carvedilol on pulmonary function at doses which produced equivalent cardiac beta-1 blockade. Worsening of pulmonary function with carvedilol was mitigated by concomitant inhaled LAMA (tiotropium) with LABA (formoterol), but not LABA alone. Registered at clinicaltrials.gov: NCT01656005. PMID- 29025004 TI - Dietary patterns and risk of pancreatic cancer: a systematic review. AB - Context: Pancreatic cancer has the highest case fatality rate of all major cancers. Objective: A systematic review using PRISMA guidelines was conducted to summarize the associations between dietary patterns and risk of pancreatic cancer. Data Sources: PubMed and Web of Science databases were searched for case control and cohort studies published up to June 15, 2016. Study Selection: Eligible studies included a dietary pattern as exposure and pancreatic cancer incidence or mortality as outcome and reported odds ratios, hazard ratios, or relative risks, along with corresponding 95%CIs. Data Extraction: Important characteristics of each study, along with the dietary assessment instrument, the component foods or nutrients included in each dietary pattern or the scoring algorithm of a priori dietary patterns, were presented. For each dietary pattern identified, the estimate of association and the 95%CI comparing the highest versus the lowest category from the model with the most covariate adjustment were reported. Results: A total of 16 studies were identified. Among the 8 studies that examined data-driven dietary patterns, significant positive associations were found between pancreatic cancer risk and the Animal Products, Starch Rich, and Western dietary patterns, with effect estimates ranging from 1.69 to 2.40. Significant inverse relationships were found between risk of pancreatic cancer and dietary patterns designated as Fruits and Vegetables, Vitamins and Fiber, and Prudent, with effect estimates ranging from 0.51 to 0.55. Eight studies of a priori dietary patterns consistently suggested that improved dietary quality was associated with reduced risk of pancreatic cancer. Conclusions: Better diet quality is associated with reduced risk of pancreatic cancer. The associations between dietary patterns and pancreatic cancer were stronger in case-control studies than in cohort studies and were stronger among men than among women. PMID- 29025009 TI - Crohn's disease: Bamboo joint-like appearance. PMID- 29025010 TI - Sperm function, protein phosphorylation, and metabolism differ in mice lacking successive sperm-specific glycolytic enzymes. AB - Glyceraldehyde 3-phosphate dehydrogenase-S (GAPDHS) and phosphoglycerate kinase 2 (PGK2), two isozymes restricted to the male germline, catalyze successive steps in the glycolytic pathway in mammalian sperm. Although gene targeting of each isozyme demonstrated that glycolysis is required for normal sperm motility and male fertility, the phenotype of mice lacking GAPDHS is more severe than that of mice lacking PGK2. This study examined sperm function, signaling pathways, and metabolism to investigate factors that contribute to the phenotypic differences between these knockout models. Sperm from the two knockouts exhibited comparable deficits in zona binding, in vitro fertilization with or without zona drilling, and capacitation-dependent tyrosine phosphorylation. In contrast, signaling and metabolic differences were apparent prior to capacitation. Phosphorylation of sperm protein phosphatase 1, which has been associated with the acquisition of motile capacity during epididymal maturation, was deficient only in GAPDHS-null sperm. Carnitine, choline, phosphocholine, and taurine were elevated in sperm from both knockouts immediately after collection from the epididymis. However, only carnitine levels in PGK2-null sperm were significantly different from wild type sperm, while all four metabolites were significantly higher in GAPDHS-null sperm. We confirmed that glycolysis is required for robust hyperactivation, but found that the motility of PGK2-null sperm improved to levels comparable to wild type sperm with pyruvate as the sole metabolic substrate. This nonglycolysable substrate did not improve progressive motility in GAPDHS-null sperm. These results identify multiple signaling and metabolic defects that are likely contributors to male infertility and the absence of progressive sperm motility seen in mice lacking GAPDHS. PMID- 29025011 TI - Significance of epidermal growth factor receptor signaling for acquisition of meiotic and developmental competence in mammalian oocytes. AB - The surge in luteinizing hormone (LH) in preovulatory ovarian follicles triggers the resumption of oocyte meiosis accompanied by expansion of surrounding cumulus cells and ovulation of cumulus-oocyte complexes (COCs) into the oviduct. Over the last 15 years, substantial progress has been made in elucidating the key pathways by which the LH signal spreads within the preovulatory follicle and in identifying the molecules responsible for maintaining oocyte arrest and meiosis resumption. It is now clear that the adenylcyclase-mediated rise in intracellular cyclic adenosine monophosphate leads to activation of the epidermal growth factor receptor (EGFR) network in granulosa and cumulus cells. This signaling network can control the transcription of key genes required for cell metabolism, cumulus expansion, and oocyte meiosis resumption. In addition, EGFR signaling is involved in the regulation of gap junctional communication within follicular somatic cells, and in this way it can control the diffusion of meiosis-arresting molecules as well as energy substrates into the oocyte. Thus, the proper functioning of the follicular EGFR network is a vital precondition for the production of matured and developmentally competent oocytes. However, most current in vitro maturation systems are based on a culture of COCs isolated from growing follicles, in which function of the EGFR network may be insufficient for promoting oocyte meiotic and developmental competence. This review focuses on research identifying the importance of the EGFR signaling in somatic follicular cells for oocyte meiotic and developmental competence, and on special approaches to the culture of COCs isolated from growing follicles to promote oocyte quality. PMID- 29025012 TI - Enhancing Ear and Hearing Health Access for Children With Technology and Connectivity. AB - Purpose: Technology and connectivity advances are demonstrating increasing potential to improve access of service delivery to persons with hearing loss. This article demonstrates use cases from community-based hearing screening and automated diagnosis of ear disease. Method: This brief report reviews recent evidence for school- and home-based hearing testing in underserved communities using smartphone technologies paired with calibrated headphones. Another area of potential impact facilitated by technology and connectivity is the use of feature extraction algorithms to facilitate automated diagnosis of most common ear conditions from video-otoscopic images. Results: Smartphone hearing screening using calibrated headphones demonstrated equivalent sensitivity and specificity for school-based hearing screening. Automating test sequences with a forced choice response paradigm allowed persons with minimal training to offer screening in underserved communities. The automated image analysis and diagnosis system for ear disease demonstrated an overall accuracy of 80.6%, which is up to par and exceeds accuracy rates previously reported for general practitioners and pediatricians. Conclusion: The emergence of these tools that capitalize on technology and connectivity advances enables affordable and accessible models of service delivery for community-based ear and hearing care. PMID- 29025013 TI - Commentary: Unusual pancreatic cancer incidence and mortality patterns. PMID- 29025014 TI - Reactive oxygen species and protein modifications in spermatozoa. AB - Cellular response to reactive oxygen species (ROS) includes both reversible redox signaling and irreversible nonenzymatic reactions which depend on the nature and concentration of the ROS involved. Changes in thiol/disulfide pairs affect protein conformation, enzymatic activity, ligand binding, and protein-protein interactions. During spermatogenesis and epididymal maturation, there are ROS dependent modifications of the sperm chromatin and flagellar proteins.The spermatozoon is regulated by redox mechanisms to acquire fertilizing ability. For this purpose, controlled amounts of ROS are necessary to assure sperm activation (motility and capacitation). Modifications of the thiol groups redox status of sperm proteins are needed for spermatozoon to achieve fertilizing ability. However, when ROS are produced at high concentrations, the established oxidative stress promotes pathological changes affecting sperm function and leading to infertility. Sperm proteins are sensitive to high levels of ROS and suffer modifications that impact on motility, capacitation, and the ability of the spermatozoon to recognize and bind to the zona pellucida and damage of sperm DNA. Thiol oxidation, tyrosine nitration, and S-glutathionylation are highlighted in this review as significant redox-dependent protein modifications associated with impairment of sperm function and alteration of paternal genome leading to infertility. Peroxiredoxins, the primary antioxidant protection in spermatozoa, are affected by most of the protein modifications described in this review. They play a significant role in both physiological and pathological processes in mammalian spermatozoa. PMID- 29025015 TI - Lifetime Abuse and Quality of Life among Older People. AB - Few studies have evaluated the impact of lifetime abuse on quality of life (QoL) among older adults. By using a multinational study authors aimed to assess the subjective perception of QoL among people who have reported abuse during the course of their lifetime. The respondents (N = 4,467; 2,559 women) were between the ages of 60 and 84 years and living in seven European countries (Germany, Greece, Italy, Lithuania, Portugal, Spain, and Sweden). Lifetime abuse was assessed by using a structured questionnaire that allowed to assess lifetime experiences of abuse. QoL was assessed with the World Health Organization Quality of Life-Old module. After adjustment for potential confounders, authors found that to have had any abusive experience decreased the score of sensory abilities. Psychological abuse was associated with lower autonomy and past, present, and future activities. Physical abuse with injuries significantly decreased social participation. Intimacy was also negatively associated with psychological abuse, physical abuse with injury, and sexual abuse. The results of this study provide evidence that older people exposed to abuse during their lifetime have a significant reduction in QoL, with several QoL domains being negatively affected. PMID- 29025016 TI - Cohort Profile: NICHD Fetal Growth Studies-Singletons and Twins. PMID- 29025017 TI - Cohort Profile: The Lymphoma Specialized Program of Research Excellence (SPORE) Molecular Epidemiology Resource (MER) Cohort Study. PMID- 29025018 TI - The association between waterpipe smoking and gastroesophageal reflux disease. AB - Background: Unlike cigarettes, there is little information about the association between other tobacco products and the risk of gastroesophageal reflux disease (GERD) and esophageal adenocarcinoma. Methods: We used the baseline data from the Pars Cohort Study conducted in southern Iran. In 2012, 9264 local residents between 40 and 75 years old were enrolled, with detailed information about lifestyle, including duration and frequency of tobacco use. GERD was defined based on questions assessing heartburn and regurgitation in the past 12 months, frequency and severity. Associations were calculated by logistic regression models adjusted for age, sex, education, cigarettes and body mass index. Results: In the study, 25.4% of the participants had severe GERD (interfering with participants' routines), 25.1% had frequent GERD (at least once a week) and 11.2% had both severe and frequent GERD, all more common among women (p < 0.001); 45.6% of women and 28.3% of men smoked waterpipes. Among people not using medications against reflux symptoms, there was an association between waterpipe smoking and severe [odds ratio (OR) = 1.18; 95% confidence interval (CI):1.04-1.35], frequent (OR = 1.16; 95% CI: 1.02-1.32) and severe and frequent reflux (OR = 1.30; 95% CI: 1.08-1.56). The associations increased with the duration of use, intensity and cumulative waterpipe-years, reaching an OR of 1.44 (95% CI: 1.12-1.86) for severe and frequent reflux in those who had smoked more than 48 waterpipe-years. There was effect modification by sex, and all the associations were only seen among women. Conclusion: The increasing trend in the association between cumulative waterpipe use and reflux disease among women is particularly important given the growing waterpipe tobacco epidemic in many populations. PMID- 29025019 TI - Differing molecular response of young and advanced maternal age human oocytes to IVM. AB - STUDY QUESTION: What effect does maternal age have on the human oocyte's molecular response to in vitro oocyte maturation? SUMMARY ANSWER: Although polyadenylated transcript abundance is similar between young and advanced maternal age (AMA) germinal vesicle (GV) oocytes, metaphase II (MII) oocytes exhibit a divergent transcriptome resulting from a differential response to in vitro oocyte maturation. WHAT IS KNOWN ALREADY: Microarray studies considering maternal age or maturation stage have shown that either of these factors will affect oocyte polyadenylated transcript abundance in human oocytes. However, studies considering both human oocyte age and multiple stages simultaneously are limited to a single study that examined transcript levels for two genes by qPCR. Thus, polyadenylated RNA sequencing (RNA-Seq) could provide novel insight into age-associated aberrations in gene expression in GV and MII oocytes. STUDY DESIGN, SIZE, DURATION: The effect of maternal age (longitudinal analysis) on polyadenylated transcript abundance at different stages was analyzed by examining single GV and single in vitro matured MII oocytes derived from five young (YNG; < 30 years; average age 26.8; range 20-29) and five advanced maternal age (AMA; >=40 years; average age 41.6 years; range 40-43 years) patients. Thus, a total of 10 YNG (5 GV and 5 MII) and 10 AMA (5 GV and 5 MII) oocytes were individually processed for RNA-Seq analysis. PARTICIPANTS/MATERIALS, SETTINGS, METHODS: Patients undergoing infertility treatment at the Colorado Center for Reproductive Medicine (Lone Tree, CO, USA) underwent ovarian stimulation with FSH and received hCG for final follicular maturation prior to ultrasound guided oocyte retrieval. Unused GV oocytes obtained at retrieval were donated for transcriptome analysis. Single oocytes were stored (at -80 degrees C in PicoPure RNA Extraction Buffer; Thermo Fisher Scientific, USA) immediately upon verification of immaturity or after undergoing in vitro oocyte maturation (24 h incubation), representing GV and MII samples, respectively. After isolating RNA and generating single oocyte RNA-Seq libraries (SMARTer Ultra Low Input RNA HV kit; Clontech, USA), Illumina sequencing (100 bp paired-end reads on HiSeq 2500) and bioinformatics analysis (CLC Genomics Workbench, DESeq2, weighted gene correlation network analysis (WGCNA), Ingenuity Pathway Analysis) were performed. MAIN RESULTS AND THE ROLE OF CHANCE: A total of 12 770 genes were determined to be expressed in human oocytes (reads per kilobase per million mapped reads (RPKM) > 0.4 in at least three of five replicates for a minimum of one sample type). Differential gene expression analysis between YNG and AMA oocytes (within stage) identified 1 and 255 genes that significantly differed (adjusted P < 0.1 and log2 fold change >1) in polyadenylated transcript abundance for GV and MII oocytes, respectively. These genes included CDK1, NLRP5 and PRDX1, which have been reported to affect oocyte developmental potential. Despite the similarity in transcript abundance between GV oocytes irrespective of age, divergent expression patterns emerged during oocyte maturation. These age-specific differentially expressed genes were enriched (FDR < 0.05) for functions and pathways associated with mitochondria, cell cycle and cytoskeleton. Gene modules generated by WGCNA (based on gene expression) and patient traits related to oocyte quality (e.g. age and blastocyst development) were correlated (P < 0.05) and enriched (FDR < 0.05) for functions and pathways associated with oocyte maturation. LARGE SCALE DATA: Raw data from this study can be accessed through GSE95477. LIMITATIONS, REASONS FOR CAUTION: The human oocytes used in the current study were obtained from patients with varying causes of infertility (e.g. decreased oocyte quality and oocyte quality independent factors), possibly affecting oocyte gene expression. Oocytes in this study were retrieved at the GV stage following hCG administration and the MII oocytes were derived by IVM of patient oocytes. Although the approach has the benefit of identifying intrinsic differences between samples, it may not be completely representative of in vivo matured oocytes. WIDER IMPLICATIONS OF THE FINDINGS: Transcriptome profiles of YNG and AMA oocytes, particularly at the MII stage, suggest that aberrant transcript abundance may contribute to the age associated decline in fertility. STUDY FUNDING/COMPETING INTEREST(S): J.M.R. was supported by an Austin Eugene Lyons Fellowship awarded by the University of California, Davis. The Eunice Kennedy Shriver National Institute of Child Health and Human Development of the National Institutes of Health (awarded to P.J.R.; R01HD070044) and the Fertility Laboratories of Colorado partly supported the research presented in this manuscript. PMID- 29025020 TI - Doctors' views of patient expectations of medical care in Zhejiang Province, China. AB - Objective: Physicians' prescribing patterns may be influenced by how they perceive their patients' expectations of medical care. This study explored doctors' perceptions of patient expectations of medical care. Design: Qualitative interviews and a cross-sectional survey (September 2014-September 2015). Setting: Primary- and tertiary-care facilities in Zhejiang province, China. Participants: Primary care practitioners (PCPs) and hospital specialists. Main outcomes: Perceived patients' expectations. Results: Seven focus groups and 21 individuals were interviewed. Questionnaires were completed by 460 PCPs and 651 specialists (response rate: 78%). About 36.8% of doctors reported generating profit for the facility at which they practiced as a foremost consideration. Participants perceived patients as holding high expectations of clinical performance and use of medical products. Respondents perceived that their patients expected either drug prescriptions (48.2%) or intravenous (IV) therapy (45.2%). Perceived patient expectations of an arrangement of tests and consultation fee refunds if no prescriptions were made were reported by 29.7 and 22.7%, respectively. Doctors reported feeling undervalued and disrespected when patients requested consultation fee refunds. Compared to those who did not report a need for profit making, doctors who did were significantly more likely to perceive that their patients expected medication-based treatments (AOR = 1.62, P < 0.001), IV therapy (AOR = 1.32, P = 0.037), the arrangement of tests (AOR = 2.06, P < 0.001), and consultation fee refunds when no prescriptions were made (AOR = 1.92, P < 0.001). Conclusions: Most doctors believed that patients had high expectations. Workplace profit-orientation demonstrated a strong association with doctors' perceptions. PMID- 29025021 TI - Misconceptions on the use of MR-Egger regression and the evaluation of the InSIDE assumption. PMID- 29025022 TI - Actin brings chromosomes up to speed during oocyte maturation. PMID- 29025023 TI - "Why Do I Feel This Pain?" B-Mode and Power Doppler Ultrasound Found the Answer: A Neurovascular Conflict. PMID- 29025024 TI - Implementing prescription drug monitoring and other clinical decision support for opioid risk mitigation in a military health care setting: a qualitative feasibility study. AB - Objective: Chronic noncancer pain is a highly prevalent condition among service members returning from deployment overseas. The US Army has a higher rate of opioid misuse than the civilian population. Although most states and many health care systems have implemented prescription drug monitoring programs (PDMPs) or other clinician decision support (CDS) to aid providers in delivering guideline recommended opioid therapy, similar tools are lacking in military health settings. Materials and Methods: We conducted a pre-implementation feasibility and needs assessment guided by the Promoting Action Research in Health Services framework. Twenty-six semistructured interviews were conducted with providers from a large military health system (MHS) to assess baseline knowledge and practices in opioid risk mitigation and providers' preferences and needs for a military-based PDMP or other CDS. Results: Military health care providers reported complex decision-making around opioid prescribing and monitoring, varied knowledge and use of existing clinical informatics, and concerns about the feasibility of implementing a military-based PDMP in their context. However, providers indicated a need for training and CDS to support opioid risk mitigation for their patients. Discussion: This article describes providers' knowledge and behaviors around opioid risk mitigation in the MHS, and views on the potential usefulness of a military-based PDMP or other CDS. This pre-implementation study provides a model for using qualitative methods to assess feasibility and inform planning and development of CDS in complex health care settings. Conclusion: Military providers were skeptical regarding the feasibility of MHS-based PDMP implementation, but provided important recommendations for CDS to support safe and appropriate opioid prescribing in military health care. PMID- 29025025 TI - The importance of historical residential address information in longitudinal studies using administrative health data. AB - Background: When information on changes in address or migration of people to or from a study jurisdiction is unavailable in longitudinal studies, issues relating to loss-to-follow-up and misclassification bias may result. This study investigated how estimations of associations between general practitioner (GP) contact and hospital use were affected by incomplete address and migration data. Methods: This was a retrospective population-based cohort study of Western Australians from 1990 to 2004. Linked administrative data including mortality records, hospital admissions, primary care and Electoral Roll records were used. Regularity of GP contact, based on the variance of the number of days between GP visits, was calculated for each person-year. Outcomes were the number and costs (A$2014) of diabetes-related hospital admissions in the following year. Models were estimated separately for cohorts where (i) postcode was ascertained at study commencement and held constant, and (ii) postcode and residency within Western Australia were updated with each change of address recorded on the Electoral Roll over the study period. Results: Updating address data reduced total person-years by 11% and changed the distribution of covariates. Estimations of associations between patterns of GP contact and number of hospitalizations changed; the incidence rate ratios measuring the relationship with the most regular GP contact (baseline of those with <2 GP visits) changed from 0.81 [95% confidence interval (CI) 0.66-1.00] to 0.42 (95% CI 0.33-0.53) after updating postcode information. Impacts on cost models were smaller, though still statistically significant. Conclusions: Longitudinal studies using administrative data may report biased results if they ignore address changes and migration. Researchers should attempt to link to these data wherever possible, or choose study designs which these issues are less likely to affect. Custodians should be aware that such data can be vital to high quality research. PMID- 29025026 TI - Response to 'Vitamin B12 deficiency may coexist with endocrine causes of hyperpigmentation'. PMID- 29025027 TI - Maternal melatonin or agomelatine therapy prevents programmed hypertension in male offspring of mother exposed to continuous light. AB - Hypertension can originate from early-life insults, whereas maternal melatonin therapy can be protective in a variety of models of programmed hypertension. We hypothesize that melatonin or melatonin receptor agonist agomelatine can prevent programmed hypertension in adult offspring induced by maternal exposure to continuous light. Female Sprague-Dawley pregnant rats randomly divided into four groups: controls, rats exposed to continuous light, exposed to continuous light plus treated with agomelatine (50 mg/day i.p.), and exposed to continuous light plus treated with 0.01% melatonin in drinking water throughout pregnancy and lactation period. Male offspring (n = 10/group) from three litters were examined at 12 weeks of age. Maternal continuous light exposure-induced hypertension in male offspring, which was prevented by melatonin or agomelatine therapy. Continuous light exposure did not affect melatonin pathway in adult offspring kidney. Genes that belong to the renin-angiotensin system (RAS), sodium transporters, AMP-activated protein kinase pathway, and circadian rhythm were potentially involved in the maternal exposure to continuous light-induced programmed hypertension. Maternal agomelatine therapy decreased Ace expression but increased Agtr2 and Mas1. Maternal melatonin therapy prevented the increases of Slc9a3, Slc12a3, and Atp1a1 expression induced by maternal continuous light exposure. In conclusion, maternal melatonin or agomelatine therapy prevents programmed hypertension induced by maternal exposure to continuous light. Agomelatine and melatonin reprogram the RAS and sodium transporters differentially, to prevent negative programming of continuous light. Our data highlight candidate genes and pathways in renal programming as targets for therapeutic approaches to prevent programmed hypertension caused by early-life disturbance of the circadian rhythm. PMID- 29025029 TI - CT coronary imaging-a fast evolving world. AB - Computed tomography (CT) has become an important modality in the evaluation of coronary artery disease (CAD). The tremendous technological advances in CT in the last two decades has made it possible to obtain high quality images of coronary arteries with high spatial and temporal resolutions. Multiple trials have confirmed the accuracy of CT compared to invasive catheter angiography. CT is also able to evaluate beyond the lumen in characterizing and quantifying atherosclerotic plaques, including evaluation of high risk features. Although CTA has low specificity in identification of lesion-specific ischemia, functional techniques are now possible such as CT myocardial perfusion and CT-fractional flow reserve (FFR) which evaluate the hemodynamic significance of stenosis and help with revascularization strategies. Multi-energy CT provides additional information beyond what is possible with a conventional CT and is useful in variety of clinical applications, including myocardial perfusion imaging, lesion characterization and low contrast studies. Large trials have confirmed the ability of CT to predict major adverse cardiovascular events and recent trials have even demonstrated improved clinical outcomes by using CT for the evaluation of CAD. CT is also useful in structural heart disease and 3 D printing is now increasingly used for surgical/interventional planning. Machine learning is evolving rapidly and is likely to impact diagnosis and management. PMID- 29025030 TI - Third-Degree Skin Burn from Conventional Radiofrequency Ablation of the Inferiomedial Genicular Nerve. PMID- 29025031 TI - Anal cancer: different epidemiological and clinical definitions. PMID- 29025034 TI - An environmental scan of shared access to patient portals. AB - We sought to understand the comprehensiveness of consumer-oriented information describing the availability of shared access to adult patient portals from publicly reported information on institutional websites of 20 large and geographically diverse health systems. All 20 health systems reported that they offer patients the ability to share access to their patient portal account with a family member or friend; however, the comprehensiveness of information regarding registration procedures, features, and terminology varied widely. Half of the systems (n = 10) reported having shared access available on their patient portal registration webpage. Few systems (n = 2) reported affording patients the ability to differentiate specific role-based privileges. No systems reported uptake of shared access among adult patients, which was variably described as "proxy," "caregiver," "parental," or "delegate" access. Findings suggest that engaging families through health information technology will require greater efforts to promote awareness and differentiate privileges that respect patients' choice and control in information-sharing preferences. PMID- 29025035 TI - Regression of the male reproductive tract in the female embryo is regulated by the orphan nuclear receptor COUP-TFII. PMID- 29025033 TI - Heavier smoking increases coffee consumption: findings from a Mendelian randomization analysis. AB - Background: There is evidence for a positive relationship between cigarette and coffee consumption in smokers. Cigarette smoke increases metabolism of caffeine, so this may represent a causal effect of smoking on caffeine intake. Methods: We performed Mendelian randomization analyses in the UK Biobank (N = 114 029), the Norwegian HUNT study (N = 56 664) and the Copenhagen General Population Study (CGPS) (N = 78 650). We used the rs16969968 genetic variant as a proxy for smoking heaviness in all studies and rs4410790 and rs2472297 as proxies for coffee consumption in UK Biobank and CGPS. Analyses were conducted using linear regression and meta-analysed across studies. Results: Each additional cigarette per day consumed by current smokers was associated with higher coffee consumption (0.10 cups per day, 95% CI: 0.03, 0.17). There was weak evidence for an increase in tea consumption per additional cigarette smoked per day (0.04 cups per day, 95% CI: -0.002, 0.07). There was strong evidence that each additional copy of the minor allele of rs16969968 (which increases daily cigarette consumption) in current smokers was associated with higher coffee consumption (0.16 cups per day, 95% CI: 0.11, 0.20), but only weak evidence for an association with tea consumption (0.04 cups per day, 95% CI: -0.01, 0.09). There was no clear evidence that rs16969968 was associated with coffee or tea consumption in never or former smokers or that the coffee-related variants were associated with cigarette consumption. Conclusions: Higher cigarette consumption causally increases coffee intake. This is consistent with faster metabolism of caffeine by smokers, but could also reflect a behavioural effect of smoking on coffee drinking. PMID- 29025036 TI - Pseudomembranous colitis. PMID- 29025037 TI - Association between workarounds and medication administration errors in bar-code assisted medication administration in hospitals. AB - Objective: To study the association of workarounds with medication administration errors using barcode-assisted medication administration (BCMA), and to determine the frequency and types of workarounds and medication administration errors. Materials and Methods: A prospective observational study in Dutch hospitals using BCMA to administer medication. Direct observation was used to collect data. Primary outcome measure was the proportion of medication administrations with one or more medication administration errors. Secondary outcome was the frequency and types of workarounds and medication administration errors. Univariate and multivariate multilevel logistic regression analysis were used to assess the association between workarounds and medication administration errors. Descriptive statistics were used for the secondary outcomes. Results: We included 5793 medication administrations for 1230 inpatients. Workarounds were associated with medication administration errors (adjusted odds ratio 3.06 [95% CI: 2.49-3.78]). Most commonly, procedural workarounds were observed, such as not scanning at all (36%), not scanning patients because they did not wear a wristband (28%), incorrect medication scanning, multiple medication scanning, and ignoring alert signals (11%). Common types of medication administration errors were omissions (78%), administration of non-ordered drugs (8.0%), and wrong doses given (6.0%). Discussion: Workarounds are associated with medication administration errors in hospitals using BCMA. These data suggest that BCMA needs more post-implementation evaluation if it is to achieve the intended benefits for medication safety. Conclusion: In hospitals using barcode-assisted medication administration, workarounds occurred in 66% of medication administrations and were associated with large numbers of medication administration errors. PMID- 29025032 TI - Physical activity, mediating factors and risk of colon cancer: insights into adiposity and circulating biomarkers from the EPIC cohort. AB - Background: There is convincing evidence that high physical activity lowers the risk of colon cancer; however, the underlying biological mechanisms remain largely unknown. We aimed to determine the extent to which body fatness and biomarkers of various biologically plausible pathways account for the association between physical activity and colon cancer. Methods: We conducted a nested case control study in a cohort of 519 978 men and women aged 25 to 70 years followed from 1992 to 2003. A total of 713 incident colon cancer cases were matched, using risk-set sampling, to 713 controls on age, sex, study centre, fasting status and hormonal therapy use. The amount of total physical activity during the past year was expressed in metabolic equivalent of task [MET]-h/week. Anthropometric measurements and blood samples were collected at study baseline. Results: High physical activity was associated with a lower risk of colon cancer: relative risk >=91 MET-h/week vs <91 MET-h/week = 0.75 [95% confidence interval (CI): 0.57 to 0.96]. In mediation analyses, this association was accounted for by waist circumference: proportion explained effect (PEE) = 17%; CI: 4% to 52%; and the biomarkers soluble leptin receptor (sOB-R): PEE = 15%; 95% CI: 1% to 50% and 5 hydroxyvitamin D (25[OH]D): PEE = 30%; 95% CI: 12% to 88%. In combination, these factors explained 45% (95% CI: 20% to 125%) of the association. Beyond waist circumference, sOB-R and 25[OH]D additionally explained 10% (95% CI: 1%; 56%) and 23% (95% CI: 6%; 111%) of the association, respectively. Conclusions: Promoting physical activity, particularly outdoors, and maintaining metabolic health and adequate vitamin D levels could represent a promising strategy for colon cancer prevention. PMID- 29025028 TI - Cohort Profile: Pregnancy And Childhood Epigenetics (PACE) Consortium. PMID- 29025040 TI - A note on the use of Egger regression in Mendelian randomization studies. PMID- 29025041 TI - Trigger Points, Pressure Pain Hyperalgesia, and Mechanosensitivity of Neural Tissue in Women with Chronic Pelvic Pain. AB - Objectives: This study aims to evaluate the presence of myofascial trigger points (TrPs), widespread pressure pain sensitivity, and mechanosensitivity of neural tissue in women with chronic pelvic pain. Design: Case-control study. Setting: Faculty of Health Sciences. Subjects: Forty women with chronic pelvic pain between age 18 and 60 years and 40 matched healthy controls were included in the study. Methods: TrPs were bilaterally explored in gluteus maximus, gluteus medius, gluteus minimus, quadratus lumborum, and adductor magnus muscles. The referred pain reproduced lumbopelvic symptoms. Pressure pain thresholds (PPTs) were also bilaterally assessed over the Pfannenstiel incision point on the abdominal, C5-C6 zygapophyseal joint, second metacarpal, and tibialis anterior muscle. Mechanosensitivity of neural tissue was assessed with the neurodynamics tests of slump and the straight-leg raising. Results: Significant between-group differences were found in TrP presence in patients with chronic pelvic pain (P < 0.001) compared with those included in the control group. Widespread pressure pain hyperalgesia was also found, with PPTs significantly reduced in the points assessed. Neurodynamics show a significantly decreased value in women with CPP. Conclusions: Patients with chronic pelvic pain presented a high percentage of TrPs that reproduce their symptoms. Patients also showed a widespread pressure pain hyperalgesia and more mechanosensitive neural tissue due to a decrease on the range of motion related to neurodynamics. PMID- 29025039 TI - Rehabilitative post-acute care for stroke patients delivered by per-diem payment system in different hospitalization paths: A Taiwan pilot study. AB - Objective: To explore how post-acute care (PAC) for stroke patients delivered by per-diem payment system in varying hospitalization paths affects medical care utilization and functional status. Design, setting and patients: A longitudinal prospective cohort study of 181 acute stroke patients in a southern Taiwan hospital and patients were separated into two groups: patients transferred from regional hospitals (group 1) and patients referred from medical centers (group 2). Intervention: The intervention was a hospital based, function oriented, 3- to 12-weeks rehabilitative PAC intervention for patients with cerebrovascular diseases. Measurements: Barthal Index, Functional Oral Intake Scale, Instrumental Activities of Daily Living Scale, EuroQoL Quality of Life Scale, and Berg Balance Scale. Results: The average duration between day of stroke onset and day of admission to PAC ward was significantly (P < 0.001) shorter in group 1 (9.88 days) compared to group 2 (17.11 days). The average duration of PAC was also significantly (P < 0.01) shorter in group 1 (25.51 days) compared to group 2 (34.11 days). Finally, the average cost of PAC under per-diem payment was significantly lower (P < 0.01) in group 1 (US$2637) compared to group 2 (US$3450). Functional status significantly (P < 0.05) improved in patients who had received rehabilitative PAC. However, functional status did not significantly differ between the two groups. Conclusions: The most effective way to reduce the costs of PAC for stroke patients is to minimize the duration of their hospital stay before transfer to rehabilitative PAC. Because it substantially reduces medical costs, rehabilitative PAC should be considered standard care for stroke patients. PMID- 29025038 TI - Selective progesterone receptor modulators for fertility preservation in women with symptomatic uterine fibroids. AB - Uterine fibroids (UFs, AKA leiomyoma) are the most important benign neoplastic threat to women's health, with costs up to hundreds of billions of health care dollars worldwide. Uterine fibroids caused morbidities exert a tremendous health toll, impacting the quality of life of women of all ethnicities, especially women of color. Clinical presentations include heavy vaginal bleeding, pelvic pain, bulk symptoms, subfertility, and obstetric complications. Current management strategies heavily lean toward surgical procedures; nonetheless, the choice of treatment is generally subject to patient's age and her desire to preserve future fertility. Women with UF who desire to maintain future fertility potential face a dilemma because of the limited treatment choices that are currently available to help them achieve that goal. Recently, ulipristal acetate the first of the promising family of oral selective progesterone receptor modulators has been approved for UF treatment in Europe, Canada, and several other countries and is under review for possible approval in the USA. In this review article, we discuss recent advances in the management options against UF with a bend toward oral effective long-term treatment alternatives who are particularly suited for those seeking to preserve their future fertility potential. We also explore the transformative concept of primary and secondary UF prevention using these new anti-UF agents. We envision a remarkable shift in the management of UF in future years from surgical/invasive treatment to orally administrated options; clearly, this potential shift will require additional intense clinical research. PMID- 29025043 TI - Cohort Profile: The HIV Atlanta Veterans Affairs Cohort Study (HAVACS). PMID- 29025042 TI - Stage-specific follicular extracellular vesicle uptake and regulation of bovine granulosa cell proliferation. AB - Follicular fluid within ovarian antral follicles contains numerous factors, which influence the development of a healthy oocyte including nucleic acids, steroids, proteins, and extracellular vesicles (EVs). Current evidence indicates that follicular EVs promote changes in cellular gene expression and support cumulus oocyte complex expansion in vitro. In this study, we found EVs from different sized follicles differentially stimulate granulosa cell proliferation and this could be explained by both the differential contents associated, on or within the vesicles and by the preferential uptake of EVs dependent on follicle size from which they were isolated. Antibody array and inhibitor studies indicated that the Src, PI3K/Akt, and MAPK signaling pathways mediate the stimulatory effects of EVs on granulosa cell proliferation. This study demonstrates for the first time that EVs isolated from follicular fluid are capable of stimulating granulosa cell proliferation and that this stimulatory response is associated with the size of antral follicle from which the EVs originated. The study further also provides the first evidence that vesicles released by small antral follicles are preferentially taken up when compared to those isolated from large follicles, suggesting that vesicular surface proteins change during follicular maturation. PMID- 29025044 TI - International Consensus on Diagnostic Criteria and Clinical Considerations of Myofascial Trigger Points: A Delphi Study. AB - Objective: There is no consensus on the essential diagnostic criteria for diagnosing a trigger point (TrP). In fact, a variety of diagnostic criteria are currently being used. Our aim was to conduct a Delphi panel to achieve an international consensus on the cluster of criteria needed for the TrP diagnosis to reach a consensus on the definition of active and latent TrPs and to clarify different clinical considerations about TrPs. Methods: Following international guidelines, an international three-round Delphi survey was conducted. Questions were created based on a systematic literature search of the diagnostic criteria for TrPs. Results: Sixty experts from 12 countries completed all rounds of the survey. A cluster of three diagnostic criteria was proposed as essential for the TrP diagnosis: a taut band, a hypersensitive spot, and referred pain. Eighty percent of the experts agreed that the referred pain elicited by a TrP can include different sensory sensations and not just pain, that is, pain spreading to a distant area, deep pain, dull ache, tingling, or burning pain. Eighty-four percent of the international experts consistently answered that the main clinical differences between active and latent TrPs are the reproduction of any of the symptoms experienced by a patient and the recognition of pain. No specific location of the pain referral area and TrP location should be expected. Conclusions: This Delphi panel has produced an expert-based standardized definition of a TrP with a discussion of the clinical components, including the definition of referred pain and the difference between active and latent TrPs, thereby providing a foundation for future research in MPS. PMID- 29025045 TI - Clinical features and outcomes in secondary adult hemophagocytic lymphohistiocytosis. AB - Background: Hemophagocytic lymphohistiocytosis (HLH) is a rare clinical syndrome characterized by an infrequent but immune-mediated life-threatening disease, with confusing clinical manifestations, rapidly deteriorating health, high morbidity and mortality and challenging diagnosis. Aim: The purpose of this study was to improve the recognition and understanding of HLH. Design: Retrospective observational cross-sectional study. Methods: Data were collected for all cases of adult patients diagnosed with HLH in a large cohort managed at a single medical center from January 2011 to December 2015. Results: The median age was 52 years (range 18-90 years) and 123 (60.0%) were male. Over 95% patients manifested fever, hyperferritinemia and elevated lactate dehydrogenase. Underlying triggers of HLH were as follows: 119 (58.0%) malignancies, 83 (40.5%) infections, 14 (6.8%) unknown triggers and 14 (6.8%) autoimmune disorders. The median overall survival was 55 days. And elderly patients (age >=60 years) had a markedly worse survival compared with young patients (age <60 years) (median overall survival 24 days vs. 159 days, respectively; P <0.001). In a multivariable analysis, platelet <40 * 109/l (HR = 2.534; 95% CI 1.152-5.573; P = 0.021), PT prolonged >3 s (HR = 1.909; 95% CI 1.127-3.234; P = 0.016) and malignancy (HR = 1.614; 95% CI 1.008 2.582; P = 0.046) were correlated with poor survival. Conclusion: HLH adult patients had very complex clinical manifestations as well as underlying diseases. Patients with PLT <40 *109/l, PT prolonged >3 s and malignancy had inferior survival. It is of great importance to improve our understanding of this syndrome. PMID- 29025046 TI - Decreased insulin secretion in pregnant rats fed a low protein diet. AB - Low protein (LP) diet during pregnancy leads to reduced plasma insulin levels in rodents, but the underlying mechanisms remain unclear. Glucose is the primary insulin secretagogue, and enhanced glucose-stimulated insulin secretion (GSIS) in beta cells contributes to compensation for insulin resistance and maintenance of glucose homeostasis during pregnancy. In this study, we hypothesized that plasma insulin levels in pregnant rats fed LP diet are reduced due to disrupted GSIS of pancreatic islets. We first confirmed reduced plasma insulin levels, then investigated in vivo insulin secretion by glucose tolerance test and ex vivo GSIS of pancreatic islets in the presence of glucose at different doses, and KCl, glibenclamide, and L-arginine. Main findings include (1) plasma insulin levels were unaltered on day 10, but significantly reduced on days 14-22 of pregnancy in rats fed LP diet compared to those of control (CT) rats; (2) insulin sensitivity was unchanged, but glucose intolerance was more severe in pregnant rats fed LP diet; (3) GSIS in pancreatic islets was lower in LP rats compared to CT rats in the presence of glucose, KCl, and glibenclamide, and the response to L-arginine was abolished in LP rats; and (4) the total insulin content in pancreatic islets and expression of Ins2 were reduced in LP rats, but expression of Gcg was unaltered. These studies demonstrate that decreased GSIS in beta cells of LP rats contributes to reduced plasma insulin levels, which may lead to placental and fetal growth restriction and programs hypertension and other metabolic diseases in offspring. PMID- 29025047 TI - The representativeness of eligible patients in type 2 diabetes trials: a case study using GIST 2.0. AB - Objective: The population representativeness of a clinical study is influenced by how real-world patients qualify for the study. We analyze the representativeness of eligible patients for multiple type 2 diabetes trials and the relationship between representativeness and other trial characteristics. Methods: Sixty-nine study traits available in the electronic health record data for 2034 patients with type 2 diabetes were used to profile the target patients for type 2 diabetes trials. A set of 1691 type 2 diabetes trials was identified from ClinicalTrials.gov, and their population representativeness was calculated using the published Generalizability Index of Study Traits 2.0 metric. The relationships between population representativeness and number of traits and between trial duration and trial metadata were statistically analyzed. A focused analysis with only phase 2 and 3 interventional trials was also conducted. Results: A total of 869 of 1691 trials (51.4%) and 412 of 776 phase 2 and 3 interventional trials (53.1%) had a population representativeness of <5%. The overall representativeness was significantly correlated with the representativeness of the Hba1c criterion. The greater the number of criteria or the shorter the trial, the less the representativeness. Among the trial metadata, phase, recruitment status, and start year were found to have a statistically significant effect on population representativeness. For phase 2 and 3 interventional trials, only start year was significantly associated with representativeness. Conclusions: Our study quantified the representativeness of multiple type 2 diabetes trials. The common low representativeness of type 2 diabetes trials could be attributed to specific study design requirements of trials or safety concerns. Rather than criticizing the low representativeness, we contribute a method for increasing the transparency of the representativeness of clinical trials. PMID- 29025048 TI - Meta-analysis of occupational exposures in the rubber manufacturing industry and risk of cancer. AB - Background: Occupational exposures in the rubber manufacturing industry showed an increased risk of cancer and have been classified as a group 1 carcinogen, largely from studies on workers employed before 1950s. Cancer sites considered as causally associated are bladder, lung and stomach, and leukaemia. Recent studies did not report an increased risk of cancer. Methods: A meta-analysis was conducted on observational studies published until April 2016 on occupational exposures in the rubber manufacturing industry and risk of cancer. Case-control and cohort studies were included. Random effect models were used. Heterogeneity and publication bias were evaluated. Stratified analyses were conducted on study characteristics. Results: The literature search identified 46 cohorts and 59 case control studies. An increased risk was found for bladder cancer [standardised incidence ratio (SRR) = 1.36; 95% confidence interval (CI) 1.18, 1.57], leukaemia (SRR = 1.29; 95% CI 1.11, 1.52), lymphatic and haematopoietic system (SRR = 1.16; 95% CI 1.02, 1.31) and larynx cancer (SRR = 1.46; 95% CI 1.10, 1.94). For lung cancer, a borderline statistically significant increased risk was identified (SRR = 1.08; 95% CI 0.99, 1.17). No association was found for stomach cancer (SRR = 1.06; 95% CI 0.95, 1.17). In stratified analyses, risks of cancer were not increased for workers employed after 1960 for bladder cancer (SRR = 1.06; 95% CI 0.66, 1.71), lung cancer (SRR = 0.94; 95% CI 0.68, 1.29) or leukaemia (SRR = 0.92; 95% CI 0.62, 1.36). Conclusions: Risk of bladder cancer, lung cancer, leukaemia and larynx cancer were increased among workers in rubber industry. Evidence of elevated risks was no longer seen for bladder cancer, lung cancer or leukemia among workers first employed after 1960. PMID- 29025050 TI - An outbreak of community-acquired pseudomonas aeruginosa pneumonia in a setting of high water stress. PMID- 29025049 TI - Senior services in US hospitals and readmission risk in the Medicare population. AB - Background: There is a little understanding of the association between hospital organizational characteristics and hospital readmissions. We previously developed a Senior Care Services Scale (SCSS) that describes hospital availability of services relevant to the care of older adults. Objective: Determine whether hospitals' SCSS scores were associated with risk of readmission among Medicare beneficiaries. Design: Retrospective cohort analysis. Setting and Participants: Medicare beneficiaries >=65 years of age (n = 3 553 367), admitted to 5568 US acute-care hospitals in 2006, discharged alive. Medicare data were linked to the American Hospital Association database of hospital characteristics. Measurements: All-cause non-elective hospital readmission, or death without readmission, within 30 days of hospital discharge. Results: We examined the association between high and low scores of each of two hospital SCSS service groups: inpatient specialty care (IP) and post-acute (PA) community care. There was no association between high IP scores and readmission (RR 1.00, 95% CI 0.98-1.02). Older adults admitted to hospitals with high PA scores had lower risk of experiencing hospital readmission when compared to older adults admitted to hospitals with low PA scores (RR 0.97, 95% CI 0.95-0.98). High PA scores were associated with increased mortality (RR 1.09, 95% CI 1.06-1.13). In sensitivity analyses exploring relationships at 90 days, both the IP and PA subcomponents were associated with older adults' reduced risk of hospital readmission (IP: RR 0.97, 95% CI 0.95 0.99; PA: RR 0.97, 95% CI 0.95-0.99). Conclusion: Senior services at the hospital level represents a modifiable risk factor with important impact. Employing organization-level characteristics in readmission risk prediction tools should be expanded. PMID- 29025051 TI - Integrating Behavioral Health Risk Assessment into Centralized Intake for Maternal and Child Health Services. AB - Effectively promoting women's health during and around the time of pregnancy requires early, nonstigmatizing identification and assessment of behavioral health risks (such as depression, substance use, smoking, and interpersonal violence) combined with timely linkage to community support and specialized interventions. This article describes an integrated approach to behavioral health risk screening woven into a point of first contact with the health care delivery system: centralized intake for maternal and child health home visiting programs. Behavioral Health Integrated Centralized Intake is a social work-informed, community-designed approach to screening, brief intervention, and service linkage targeting communities at high risk for fetal and infant mortality. Women enrolled in this study were receptive to holistic risk screening as well as guided referral for both home visiting support and specialized mental health interventions. Results from this multi-community study form the foundation for strengths-based, social work-informed enhancements to community health promotion programs. PMID- 29025052 TI - Ultrasound double contour sign and gout. PMID- 29025053 TI - Commentary: Does early cannabis initiation reduce educational attainment? New contributions and unanswered questions. PMID- 29025054 TI - Presence of polycystic ovary syndrome is associated with longer anogenital distance in adult Mediterranean women. AB - STUDY QUESTION: Is polycystic ovary syndrome (PCOS) associated with anogenital distance (AGD), a biomarker of fetal androgen exposure, in adult Mediterranean women? SUMMARY ANSWER: Longer AGD is associated with PCOS in adult Mediterranean women. WHAT IS KNOWN ALREADY: AGD is a biomarker of prenatal androgen milieu. Human observational studies have reported that associations between AGD and reproductive parameters in both sexes. Exposure of the female fetus to intrauterine androgens may be a risk factor for PCOS in adulthood. STUDY DESIGN, SIZE, DURATION: This was a case-control study of 126 women with PCOS and 159 controls between September 2014 and May 2016. PARTICIPANTS/MATERIALS, SETTING, METHODS: Cases were attending the gynecology unit of the 'Virgen de la Arrixaca' University Clinical Hospital (Murcia, Spain), and were diagnosed following the Rotterdam criteria. Phenotypic subtypes of PCOS were also assessed. Both prevalent and incident (newly diagnosed) cases were included. Controls were women without PCOS attending the gynecological outpatient clinic for routine gynecological exams. All women completed health questionnaires, and underwent physical and gynecological examinations, including transvaginal ultrasound and blood draw. We obtained measures from the anterior clitoral surface to the upper verge of the anus (AGDAC), and from the posterior fourchette to the upper verge of the anus (AGDAF). Gynecologists performing the AGD measures were blind to the status of the patients. We used unconditional multiple logistic regression to evaluate the association between AGD measurements and PCOS while accounting for relevant covariates and confounders, such as BMI, age and episiotomy. MAIN RESULTS AND THE ROLE OF CHANCE: Cases showed significantly longer AGDAF and AGDAC compared to controls in bivariate analyses (P-values < 0.05). In the final adjusted models, AGDAC, but not AGDAF, was associated with the presence of PCOS (P-values = 0.002-0.008). Women with AGDAC in the upper compared to the lowest tertile were 2.9-times (95% CI 1.4-5.9; P-trend = 0.008) more likely to have PCOS. AGDAC measures were also significantly associated with all of the different phenotypic subtypes of PCOS (ORs = 3.1-5.1; P-values < 0.05). LIMITATIONS REASONS FOR CAUTION: We took into account known and suspected covariates and confounders, but the possibility of chance findings or residual confounding should be noted. As with all observational studies, causal inference is limited, and study selection and information bias should not be ruled out. WIDER IMPLICATIONS OF THE FINDINGS: Our results support the hypothesis that PCOS has an intrauterine origin, and that the hormonal environment in which the fetus develops may be highly relevant. STUDY FUNDING/COMPETING INTEREST: This work was supported by the Ministry of Economy and Competitiveness, Instituto de Salud Carlos III (ISCIII) (AES, Accion Estrategica en Salud), grant No. PI13/01237, and The Seneca Foundation, Murcia Regional Agency of Science and Technology, grant No. 19443/PI/14. There are no competing interests. TRIAL REGISTRATION NUMBER: Not applicable. PMID- 29025056 TI - ADF: Abuse-Deterrent Formulation or Another Disillusioned Formulation? PMID- 29025055 TI - Frozen embryo transfer: a review on the optimal endometrial preparation and timing. AB - STUDY QUESTION: What is the optimal endometrial preparation protocol for a frozen embryo transfer (FET)? SUMMARY ANSWER: Although the optimal endometrial preparation protocol for FET needs further research and is yet to be determined, we propose a standardized timing strategy based on the current available evidence which could assist in the harmonization and comparability of clinic practice and future trials. WHAT IS KNOWN ALREADY: Amid a continuous increase in the number of FET cycles, determining the optimal endometrial preparation protocol has become paramount to maximize ART success. In current daily practice, different FET preparation methods and timing strategies are used. STUDY DESIGN, SIZE, DURATION: This is a review of the current literature on FET preparation methods, with special attention to the timing of the embryo transfer. PARTICIPANTS/MATERIALS, SETTING, METHODS: Literature on the topic was retrieved in PubMed and references from relevant articles were investigated until June 2017. MAIN RESULTS AND THE ROLE OF CHANCE: The number of high quality randomized controlled trials (RCTs) is scarce and, hence, the evidence for the best protocol for FET is poor. Future research should compare both the pregnancy and neonatal outcomes between HRT and true natural cycle (NC) FET. In terms of embryo transfer timing, we propose to start progesterone intake on the theoretical day of oocyte retrieval in HRT and to perform blastocyst transfer at hCG + 7 or LH + 6 in modified or true NC, respectively. LIMITATIONS REASONS FOR CAUTION: As only a few high quality RCTs on the optimal preparation for FET are available in the existing literature, no definitive conclusion for benefit of one protocol over the other can be drawn so far. WIDER IMPLICATIONS OF THE FINDINGS: Caution when using HRT for FET is warranted since the rate of early pregnancy loss is alarmingly high in some reports. STUDY FUNDING/COMPETING INTEREST(S): S.M. is funded by the Research Fund of Flanders (FWO). H.T. and C.B. report grants from Merck, Goodlife, Besins and Abbott during the conduct of the study. TRIAL REGISTRATION NUMBER: Not applicable. PMID- 29025057 TI - NQO2 inhibition relieves reactive oxygen species effects on mouse oocyte meiotic maturation and embryo development. AB - NRH: quinone oxidoreductase 2 (NQO2) is a cytosolic and ubiquitously expressed flavoprotein that catalyzes the two-electron reduction of quinone to hydroquinones. Herein, we assessed the protein expression, subcellular localization, and possible functions of NQO2 in mouse oocyte meiotic maturation and embryo development. Western blot analysis detected high and stable protein expression of NQO2 in mouse oocytes during meiotic progression. Immunofluorescence illustrated NQO2 distribution on nuclear membrane, chromosomes, and meiotic spindles. Microtubule poisons treatment (nocodazole and taxol) showed that filamentous assembly of NQO2 and its co-localization with microtubules require microtubule integrity and normal dynamics. Increased levels of NQO2, reactive oxygen species (ROS), malondialdehyde (MDA), and autophagy protein Beclin1 expression were detected in oocytes cultured with ROS stimulator vitamin K3 (VK3), combined with decreased antioxidant glutathione (GSH). These oocytes were arrested at metaphase I with abnormal spindle structure and chromosome configuration. However, this impact was counteracted by melatonin or NQO2 inhibitor S29434, and the spindle configuration and first polar body extrusion were restored. Similarly, morpholino oligo-induced NQO2 knockdown suppressed ROS, MDA, and Beclin1, instead increased GSH in oocytes under VK3. Supplementary S29434 or melatonin limited changes in NQO2, ROS, MDA, Beclin1, and GSH during in vitro aging of ovulated oocytes, thereby maintaining spindle structure, as well as ordered chromosome separation and embryo development potential after parthenogenetic activation with SrCl2. Taken together, NQO2 is involved in ROS generation and subsequent cytotoxicity in oocytes, and its inhibition can restore oocyte maturation and embryo development, suggesting NQO2 as a pharmacological target for infertility cure. PMID- 29025059 TI - Mindfulness for Chronic Low Back Pain: A Qualitative Analysis. AB - Objective: Mindfulness is a nonpharmacologic mind-body therapy that has been shown to be effective in older adults with chronic low back pain (cLBP). There are few first-person accounts in the literature that describe the older adult experience and perspective while learning mindfulness and meditation to treat pain. The objective of this study was to investigate dominant themes present in the experiences of older adults applying mindfulness and meditation to cope with cLBP. Design: Qualitative analysis of four focus groups. Subject: Twenty-five adults age 65 years or older who had completed an eight-week mindfulness program. Methods: The focus groups met for a comprehensive discussion session about their experience with mindfulness and meditation. The audio for each session was recorded, and the discussions were transcribed. Codebook development, qualitative coding, and thematic analysis were performed. The coders each coded all four transcripts, following which they met to adjudicate all coding differences until they were in complete agreement on coding. Results: Several key themes were brought up by older adults utilizing mindfulness as a means of coping with pain, which included overcoming fear of pain ("Before [learning mindfulness], I used to dread pain"), pain awareness ("You're focusing more on being aware than the pain; now that's what helps me"), and pain significance ("It becomes insignificant"). Conclusions: The themes identify several ways mindfulness impacts older adults with cLBP, including decreased negative emotions related to chronic pain such as fear of pain, a different perspective or change in awareness about pain, and reducing the significance of pain. PMID- 29025061 TI - Nodular gastritis. PMID- 29025058 TI - Cohort Profile: Genetics of Diabetes Audit and Research in Tayside Scotland (GoDARTS). PMID- 29025062 TI - Deletion of Spata2 by CRISPR/Cas9n causes increased inhibin alpha expression and attenuated fertility in male mice. AB - As somatic cells in the testis seminiferous tubule, Sertoli cells provide the medium for spermatogenesis. One of the important functions of Sertoli cells is synthesizing and secreting cell factors to affect the production of sperm; however, much of those molecular regulation mechanisms remain unknown. Here, we confirm the localization of protein SPATA2 (spermatogenesis-associated protein 2), which had previously been shown to be highly expressed in Sertoli cells of the adult mouse testis. To further conduct a functional study, we generated SPATA2 global knockout mice via use of the CRISPR/Cas9n gene editing technology. The 120-day-old knockout mice testes showed almost a 40% decrease in size and weight and variations in the histomorphology of the seminiferous epithelium, with a 40% decrease in sperm count. Further examination revealed that the proliferation of germ cells in the seminiferous tubules was attenuated by 28%. In addition, we found that SPATA2 deletion led to an approximately 70% increase in the inhibin alpha-subunit mRNA and protein level in the testes compared to that of wild-type mice. Our data revealed the impact of SPATA2 on male fertility and suggested that SPATA2 ensures the normal secretory function of Sertoli cells. PMID- 29025063 TI - Intelligence and all-cause mortality in the 6-Day Sample of the Scottish Mental Survey 1947 and their siblings: testing the contribution of family background. AB - Background: Higher early-life intelligence is associated with a reduced risk of mortality in adulthood, though this association is apparently hardly attenuated when accounting for early-life socio-economic status (SES). However, the use of proxy measures of SES means that residual confounding may underestimate this attenuation. In the present study, the potential confounding effect of early-life SES was instead accounted for by examining the intelligence-mortality association within families. Methods: The association between early-life intelligence and mortality in adulthood was assessed in 727 members of the 6-Day Sample of the Scottish Mental Survey 1947 and, for the first time, 1580 of their younger siblings. These individuals were born between 1936 and 1958, and were followed up into later life, with deaths recorded up to 2015. Cox regression was used to estimate the relative risk of mortality associated with higher IQ scores after adjusting for shared family factors. Results: A standard-deviation advantage in IQ score was associated with a significantly reduced mortality risk [hazard ratio = 0.76, p < 0.001, 95% confidence interval (CI) (0.68-0.84)]. This reduction in hazard was only slightly attenuated by adjusting for sex and shared family factors [hazard ratio = 0.79, p = 0.002, 95% CI (0.68-0.92)]. Conclusions: Although somewhat conservative, adjusting for all variance shared by a family avoids any potential residual confounding of the intelligence-mortality association arising from the use of proxy measures of early-life SES. The present study demonstrates that the longevity associated with higher early-life intelligence cannot be explained by early-life SES or within-family factors. PMID- 29025060 TI - Adrenomedullin improves fertility and promotes pinopodes and cell junctions in the peri-implantation endometrium. AB - Implantation is a complex event demanding contributions from both embryo and endometrium. Despite advances in assisted reproduction, endometrial receptivity defects persist as a barrier to successful implantation in women with infertility. We previously demonstrated that maternal haploinsufficiency for the endocrine peptide adrenomedullin (AM) in mice confers a subfertility phenotype characterized by defective uterine receptivity and sparse epithelial pinopode coverage. The strong link between AM and implantation suggested the compelling hypothesis that administration of AM prior to implantation may improve fertility, protect against pregnancy complications, and ultimately lead to better maternal and fetal outcomes. Here, we demonstrate that intrauterine delivery of AM prior to blastocyst transfer improves the embryo implantation rate and spacing within the uterus. We then use genetic decrease-of-function and pharmacologic gain-of function mouse models to identify potential mechanisms by which AM confers enhanced implantation success. In epithelium, we find that AM accelerates the kinetics of pinopode formation and water transport and that, in stroma, AM promotes connexin 43 expression, gap junction communication, and barrier integrity of the primary decidual zone. Ultimately, our findings advance our understanding of the contributions of AM to uterine receptivity and suggest potential broad use for AM as therapy to encourage healthy embryo implantation, for example, in combination with in vitro fertilization. PMID- 29025065 TI - 'Sleeping under the starry sky'-cysticercal encephalitis. PMID- 29025064 TI - Impact of adding hand-washing and water disinfection promotion to oral cholera vaccination on diarrhoea-associated hospitalization in Dhaka, Bangladesh: evidence from a cluster randomized control trial. AB - Background: Information on the impact of hygiene interventions on severe outcomes is limited. As a pre-specified secondary outcome of a cluster-randomized controlled trial among >400 000 low-income residents in Dhaka, Bangladesh, we examined the impact of cholera vaccination plus a behaviour change intervention on diarrhoea-associated hospitalization. Methods: Ninety neighbourhood clusters were randomly allocated into three areas: cholera-vaccine-only; vaccine-plus behaviour-change (promotion of hand-washing with soap plus drinking water chlorination); and control. Study follow-up continued for 2 years after intervention began. We calculated cluster-adjusted diarrhoea-associated hospitalization rates using data we collected from nearby hospitals, and 6 monthly census data of all trial households. Results: A total of 429 995 people contributed 500 700 person-years of data (average follow-up 1.13 years). Vaccine coverage was 58% at the start of analysis but continued to drop due to population migration. In the vaccine-plus-behaviour-change area, water plus soap was present at 45% of hand-washing stations; 4% of households had detectable chlorine in stored drinking water. Hospitalization rates were similar across the study areas [events/1000 person-years, 95% confidence interval (CI), cholera-vaccine-only: 9.4 (95% CI: 8.3-10.6); vaccine-plus-behaviour-change: 9.6 (95% CI: 8.3-11.1); control: 9.7 (95% CI: 8.3-11.6)]. Cholera cases accounted for 7% of total number of diarrhoea-associated hospitalizations. Conclusions: Neither cholera vaccination alone nor cholera vaccination combined with behaviour-change intervention efforts measurably reduced diarrhoea-associated hospitalization in this highly mobile population, during a time when cholera accounted for a small fraction of diarrhoea episodes. Affordable community-level interventions that prevent infection from multiple pathogens by reliably separating faeces from the environment, food and water, with minimal behavioural demands on impoverished communities, remain an important area for research. PMID- 29025066 TI - Supply and demand: application of Lean Six Sigma methods to improve drug round efficiency and release nursing time. AB - Objective: To improve efficiency, reduce interruptions and reduce the time taken to complete oral drug rounds. Design: Lean Six Sigma methods were applied to improve drug round efficiency using a pre- and post-intervention design. Setting: A 20-bed orthopaedic ward in a large teaching hospital in Ireland. Participants: Pharmacy, nursing and quality improvement staff. Intervention(s): A multifaceted intervention was designed which included changes in processes related to drug trolley organization and drug supply planning. A communications campaign aimed at reducing interruptions during nurse-led during rounds was also developed and implemented. Main outcome measure(s): Average number of interruptions, average drug round time and variation in time taken to complete drug round. Results: At baseline, the oral drug round took an average of 125 min. Following application of Lean Six Sigma methods, the average drug round time decreased by 51 min. The average number of interruptions per drug round reduced from an average of 12 at baseline to 11 following intervention, with a 75% reduction in drug supply interruptions. Conclusions: Lean Six Sigma methodology was successfully employed to reduce interruptions and to reduce time taken to complete the oral drug round. PMID- 29025067 TI - Commentary: Pancreatic cancer: is the worst to come? PMID- 29025068 TI - Dry ice (solid carbon dioxide) exposure with disastrous consequences. PMID- 29025070 TI - Interdisciplinary Family Conferences to Improve Patient Experience in the Neonatal Intensive Care Unit. AB - Parents play a significant role in the development of their neonate. They can affect the length of stay in a neonatal intensive care unit (NICU) and are seen as an integral part of the team. Parents are often put in positions where difficult decision making is required of them in the care of their critically ill child. Studies suggest that one way to improve the family's experience and to encourage their involvement is by establishing a formal and focused family conference. Therefore, the NICU social workers and the interdisciplinary team collaborated to formulate strategies to improve communication that would enhance current practice. As a new initiative, the team decided that holding an interdisciplinary family conference (IFC) within the first two weeks of a baby's NICU admission is critical for parental involvement of infants less than 32 weeks gestation and those with congenital birth anomalies. The team determined that the primary outcome measure would be family satisfaction scores from hospital surveys. Since the implementation of IFCs, satisfaction scores showed steady improvement. This quality improvement project demonstrated that IFCs are an integral part of the family-centered care approach in the NICU. IFCs foster partnerships with families to ensure their involvement in all aspects of patient care and improve their experience in the NICU. PMID- 29025071 TI - The expression characteristics of FAM71D and its association with sperm motility. AB - STUDY QUESTION: What are the features of FAM71D (Family with sequence similarity 71, member D) expression and is there an association between FAM71D expression and sperm motility? SUMMARY ANSWER: FAM71D, a novel protein exclusively expressed in the testis, is located in sperm flagella and is functionally involved in sperm motility. WHAT IS KNOWN ALREADY: Some testis-specific proteins have been reported as potential diagnostic biomarkers to evaluate the spermatogenesis process and sperm quality. We have identified a novel testis-specific protein, FAM71D, through microarray data analysis, yet little is known about its expression and function. STUDY DESIGN, SIZE, DURATION: FAM71D mRNA and protein expression was quantified during mouse testis development. Its localization in germ cells was detected by dual-labeled immunostaining in testis sections and sperm smears. The clinical significance was assessed by comparing FAM71D expression in spermatozoa from normozoospermic controls and asthenozoospermic patients. PARTICIPANTS/MATERIALS, SETTING, METHODS: Testes were dissected from C57BL/6 J male mice at postnatal ages of 1, 2, 3, 4, 6, 8 weeks and 6 months, and sperm was collected from cauda epididymides of adult mice by the swim-up method. Human spermatozoa were isolated from 100 human semen samples by density gradient Percoll centrifugation. RT-qPCR and western blot were performed to semi-quantify the expression of FAM71D in mouse testis, and in the ejaculated spermatozoa of normozoospermic controls and asthenozoospermic patients. Immunofluorescence staining was used to detect the localization of FAM71D. Co-immunoprecipitation assay was performed to evaluate the interaction between FAM71D and calmodulin. An antibody blocking assay was employed to assess the role of FAM71D in sperm motility. MAIN RESULTS AND THE ROLE OF CHANCE: Our results showed that FAM71D was exclusively expressed in the testis in an age-dependent manner. FAM71D expression exhibited dynamic change in the cytoplasm of spermatids during spermiogenesis and was finally retained in sperm flagella. FAM71D could interact with calmodulin. Use of anti-FAM71D antibody on sperm significantly decreased sperm motility. Expression level of FAM71D was markedly reduced in the ejaculated spermataozoa of asthenozoospermic patients (P < 0.05), and this was correlated with sperm progressive motility (r = 0.7435, P < 0.0001). LARGE SCALE DATA: N/A. LIMITATIONS, REASONS FOR CAUTION: The sample size was limited and it is necessary to verify the correlation of FAM71D expression with sperm motility in larger cohorts. Furthermore, our results were descriptive and follow-up studies would be needed to elucidate the detailed role of FAM71D in sperm motility. WIDER IMPLICATIONS OF THE FINDINGS: This is the first systematic study to document the expression of endogenous FAM71D and a function for FAM71D in sperm motility. It provides new insights into our understanding of sperm motility regulation and causes of male infertility. STUDY FUNDING/COMPETING INTERESTS: This study was funded by the National Natural Science Foundation of China, Guangdong Natural Science Foundation and the Shenzhen Project of Science and Technology. The authors have no competing interests. PMID- 29025069 TI - WNK lysine deficient protein kinase 1 regulates human endometrial stromal cell decidualization, proliferation, and migration in part through mitogen-activated protein kinase 7. AB - The differentiation of endometrial stromal cells into decidual cells, termed decidualization, is an integral step in the establishment of pregnancy. The mitogen-activated protein kinase homolog, WNK lysine deficient protein kinase 1 (WNK1), is activated downstream of epidermal growth factor receptor during decidualization. Primary human endometrial stromal cells (HESCs) were subjected to small interfering RNA knockdown of WNK1 followed by in vitro decidualization. This abrogated expression of the decidual marker genes, insulin like growth factor binding protein 1 (IGFBP1) and prolactin (PRL), and prevented adoption of decidual cell morphology. Analysis of the WNK1-dependent transcriptome by RNA-Seq demonstrated that WNK1 regulates the expression of 1858 genes during decidualization. Gene ontology and upstream regulator pathway analysis showed that WNK1 regulates cell migration, differentiation, and proliferation. WNK1 was required for many of the gene expression changes that drive decidualization, including the induction of the inflammatory cytokines, C-C motif chemokine ligand 8 (CCL8), interleukin 1 beta (IL1B), and interleukin 15 (IL15), and the repression of transforming growth factor-beta (TGF-beta) pathway genes, including early growth response 2 (EGR2), SMAD family member 3 (SMAD3), integrin subunit alpha 2 (ITGA2), integrin subunit alpha 4 (ITGA4), and integrin subunit beta 3 (ITGB3). In addition to abrogating decidualization, WNK1 knockdown decreased the migration and proliferation of HESCs. Furthermore, mitogen-activated protein kinase 7 (MAPK7), a known downstream target of WNK1, was activated during decidualization in a WNK1-dependent manner. Small interfering RNA knockdown of MAPK7 demonstrated that MAPK7 regulates a subset of WNK1-regulated genes and controls the migration and proliferation of HESCs. These results indicate that WNK1 and MAPK7 promote migration and proliferation during decidualization and regulate the expression of inflammatory cytokines and TGF-beta pathway genes in HESCs. PMID- 29025073 TI - Cohort Profile: The FinnBrain Birth Cohort Study (FinnBrain). PMID- 29025072 TI - Declining exposures to lead and cadmium contribute to explaining the reduction of cardiovascular mortality in the US population, 1988-2004. AB - Background: Lead and cadmium exposures have markedly declined in the USA following the implementation of large-scale public health policies and could have contributed to the unexplained decline in cardiovascular mortality in US adults. We evaluated the potential contribution of lead and cadmium exposure reductions to explain decreasing cardiovascular mortality trends occurring in the USA from 1988-94 to 1999-2004. Methods: Prospective study in 15 421 adults >=40 years old who had participated in the National Health and Nutrition Examination Survey 1988 94 or 1999-2004. We estimated the amount of change in cardiovascular mortality over time that can be independently attributed to the intermediate pathway of changes in blood lead and urine cadmium concentrations. Results: There was a 42.0% decrease in blood lead and a 31.0% decrease in urine cadmium concentrations. The cardiovascular mortality rate ratio [95% confidence intervals (CIs)] associated with a doubling of metal levels was 1.19 (1.07, 1.31) for blood lead and 1.20 (1.09, 1.32) for urine cadmium. The absolute reduction in cardiovascular deaths comparing 1999-2004 to 1988-94 was 230.7 deaths/100 000 person-years, in models adjusted for traditional cardiovascular risk factors. Among these avoided deaths, 52.0 (95% CI 8.4, 96.7) and 19.4 (4.3, 36.4) deaths/100 000 person-years were attributable to changes in lead and cadmium, respectively. Conclusions: Environmental declines in lead and cadmium exposures were associated with reductions in cardiovascular mortality in US adults. Given the fact that lead and cadmium remain associated with cardiovascular disease at relatively low levels of exposure, prevention strategies that further minimize exposure to lead and cadmium may be needed. PMID- 29025074 TI - The impact of centralization of services on treatment delay in ovarian cancer: A study on process quality. AB - Objective: Emphasis on improving healthcare quality has led to centralization of services for patients suspected of ovarian cancer. As centralization of services may induce treatment delays, we aimed to assess compliance with health system interval guidelines in patients suspected of ovarian cancer. Design: Evaluation of health system intervals, comparison between direct and indirect referrals and between 2013 and 2014. Setting: A managed clinical network (MCN) comprising 11 hospitals in the Netherlands. Participants: Patients that were treated for ovarian cancer within the University Medical Center Groningen in 2013 and 2014. Intervention: Introduction of an MCN to centralize services for patients suspected of ovarian cancer. Main Outcome Measure: Compliance with national guidelines regarding health system intervals. Results: Between 2013 and 2014 a clinically relevant improvement in compliance with guidelines was demonstrated. Within this period, median treatment intervals decreased from 34 to 29 days, and the percentage of patients in which treatment interval guidelines were met increased from 63.5 to 72.2%. New regulations and increased awareness of health system intervals inspired changes in local practice leading to improved compliance with guidelines. Compliance was highest in patients that were directly referred to our academic hospital. Conclusion: Evaluation of health system intervals in patients suspected of ovarian cancer was feasible and may be applicable to other MCNs. Though compliance with guidelines improved within the study period, there is potential for improvement. To facilitate real-time evaluation of compliance with national guidelines establishing uniformity of electronic patient files in the MCN is deemed essential. PMID- 29025075 TI - Possible Association between Serum Matrix Metalloproteinase-9 (MMP-9) Levels and Relapse in Depressed Patients following Electroconvulsive Therapy (ECT). AB - Background: Matrix metalloproteinases are involved in neuroinflammatory processes, which could underlie depression. Serum levels of MMP-9 and MMP-2 in depressed patients are significantly altered following electroconvulsive therapy, but an association between altered matrix metalloproteinases after successful ECT and possible relapse has yet to be investigated. Methods: Serum was obtained twice, before and immediately after a course of electroconvulsive therapy, from 38 depressed patients. Serum was also collected, once, from two groups of age- and gender-matched healthy controls, 40 volunteers in each group. Possible associations between levels of matrix metalloproteinases and relapse during a 1 year follow-up period were analyzed. Results: Excluding patients who did not respond to electroconvulsive therapy and patients lost to follow-up, data from 28 patients were evaluated. Eighteen of the patients (64.3%) relapsed within 1 year. In the group that did not relapse, serum levels of MMP-9 were significantly decreased after a course of electroconvulsive therapy, but not in the group that relapsed. No association between MMP-2 and relapse was observed. Conclusion: The degree of change in serum MMP-9 change could be associated with relapse following electroconvulsive therapy in depressed patients. PMID- 29025077 TI - Impact of Fasting on Complete Blood Count Assayed in Capillary Blood Samples. AB - Background: To determine the effect of food intake on complete blood count (CBC) results. Method: We analyzed the CBC in whole capillary blood specimens collected from 33 adult volunteers into microtubes between 8:00 AM and 11:00 AM. Blood specimens were drawn from patients who had been fasting 12 hours and then 1 and 2 hours after consumption of a light meal containing carbohydrates, protein, and lipids. All measurements were performed using the hematologic analyzer Sysmex XN 1000. Results: The red blood cell count, hemoglobin concentration, hematocrit level, and platelet count decreased 2 hours after meal consumption (P = .007, P = .008, P = .003, and P = .03, respectively). The lymphocyte number decreased after the first and second hour following meal consumption (P = .004 and P = .001); the number of neutrophils had increased 1 and 2 hours after food intake (P = .003 and P = .006, respectively). Conclusions: Food consumption impacts CBC results. To ensure the consistency, quality, and repeatability of CBC analysis, blood should be drawn from fasting patients. PMID- 29025076 TI - Impact of smoking, alcohol consumption, and NSAID use on risk for and phenotypes of eosinophilic esophagitis. AB - There are few data exploring modifiable risk factors for eosinophilic esophagitis (EoE). We aimed to determine if smoking, alcohol consumption, and nonsteroidal anti-inflammatory drug (NSAID) use were risk factors for EoE, and to assess their impact on EoE phenotypes and treatment outcomes. We performed a case-control study analyzing data collected from a prospective cohort of adults undergoing upper endoscopy for symptoms of esophageal dysfunction. Incident EoE cases were diagnosed via consensus guidelines. Exposure data were collected via standardized patient questionnaire. Follow-up assessments for cases were made after treatment, with histologic response defined as <15 eosinophils per high-power field (eos/hpf). Exposures were compared between EoE cases and controls, among EoE cases with and without fibrostenosis, and among EoE responders and nonresponders. A total of 115 cases and 225 controls were analyzed. Cases were less likely to have ever smoked cigarettes (23% vs. 47%, P < 0.001) or currently use NSAIDs (17% vs. 40%, P < 0.001) compared to controls. These relations persisted after multivariate analysis. Although alcohol use was more common among cases (75% vs. 51%, P < 0.001), the effect was abrogated after multivariate analysis. Smoking, alcohol, and NSAID use were not associated with the fibrostenotic phenotype. There was a trend toward improved histologic response among EoE patients concomitantly using NSAIDs (87% vs. 63%, P = 0.08; aOR 6.97 (95% CI: 0.81-60.3). In conclusion, NSAID and smoking were inversely associated with EoE compared to endoscopy-based controls. Alcohol use was more prevalent in the EoE cases, although not an independent risk factor. Concomitant NSAID use may improve treatment response and is worthy of future study. PMID- 29025078 TI - A cloud on the horizon-a survey into the use of electronic vaping devices for recreational drug and new psychoactive substance (NPS) administration. AB - Background: There is limited published scientific data on vaping recreational drugs other than cannabis. A recent review suggested that 15% of people vaping cannabis have also vaped a synthetic cannabinoid receptor agonist (SCRA) and identified over 300 Internet reports of e-liquid manufacture of recreational drugs and/or new psychoactive substances (NPS). Aim: To determine the prevalence of use of electronic vaping devices for recreational drug and NPS delivery in the UK. Design: A voluntary online survey using a convenience sample of UK adult participants (aged 16 years old and over) identified by a market research company. Methods: Data was collected regarding demographics, smoking history, electronic vaping device history and recreational drug/NPS use and route of administration. Results: There were 2501 respondents. The mean (+/-SD) age was 46.2 +/- 16.8 years old. The commonest lifetime recreational drug used was Cannabis (818, 32.7%). The majority of respondents had smoked (1545, 61.8%) with 731 (29.2%) being current smokers. The most commonly used SCRA product was 'Spice Gold' (173, 6.9%) and SCRA compound was ADB-CHMICA (48, 1.9%). 861 (34.4%) had used an electronic vaping device; 340 (13.6%) having used them for recreational drug administration; 236 (9.4%) reporting current use. The commonest lifetime recreational drug to be vaped was cannabis (155, 65.7%), with electronic cigarettes (230, 48.2%) being the commonest reported route of SCRA compound administration. Conclusion: 9.4% of respondents currently use electronic vaping devices for recreational drug administration with 6.2% reporting lifetime cannabis vaping use. Further larger scale studies are required to help inform the appropriate treatment and primary prevention strategies. PMID- 29025079 TI - Transcriptome profiling of individual rhesus macaque oocytes and preimplantation embryos. AB - Early mammalian embryonic transcriptomes are dynamic throughout the process of preimplantation development. Cataloging of primate transcriptomics during early development has been accomplished in humans, but global characterization of transcripts is lacking in the rhesus macaque: a key model for human reproductive processes. We report here the systematic classification of individual macaque transcriptomes using RNA-Seq technology from the germinal vesicle stage oocyte through the blastocyst stage embryo. Major differences in gene expression were found between sequential stages, with the 4- to 8-cell stages showing the highest level of differential gene expression. Analysis of putative transcription factor binding sites also revealed a striking increase in key regulatory factors in 8 cell embryos, indicating a strong likelihood of embryonic genome activation occurring at this stage. Furthermore, clustering analyses of gene co-expression throughout this period resulted in distinct groups of transcripts significantly associated to the different embryo stages assayed. The sequence data provided here along with characterizations of major regulatory transcript groups present a comprehensive atlas of polyadenylated transcripts that serves as a useful resource for comparative studies of preimplantation development in humans and other species. PMID- 29025081 TI - The long-term effects of early oral feeding following minimal invasive esophagectomy. AB - A nil-by-mouth regime with enteral nutrition via an artificial route is frequently applied following esophagectomy. However, early initiation of oral feeding could potentially improve recovery and has shown to be beneficial in many types of abdominal surgery. Although short-term nutritional safety of oral intake after an esophagectomy has been documented, long-term effects of this feeding regimen are unknown. In this cohort study, data from patients undergoing minimal invasive Ivor-Lewis esophagectomy between 04-2012 and 09-2015 in three centers in Netherlands were collected. Patients in the oral feeding group were retrieved from a previous prospective study and compared with a cohort of patients with early enteral jejunostomy feeding but delayed oral intake. Body mass index (BMI) measurements, complications, and nutritional re-interventions (re- or start of artificial feeding, start of total parenteral nutrition) were gathered over the course of one year after surgery. One year after surgery the median BMI was 22.8 kg/m2 and weight loss was 7.0 kg (9.5%) in 114 patients. Patients in the early oral feeding group lost more weight during the first postoperative month (P = 0.004). However, in the months thereafter this difference was not observed anymore. In the early oral feeding group, 28 patients (56%) required a nutritional re-intervention, compared to 46 patients (72%) in the delayed oral feeding group (P = 0.078). During admission, more re-interventions were performed in the delayed oral feeding group (17 vs. 46 patients P < 0.001). Esophagectomy reduces BMI in the first year after surgery regardless of the feeding regimen. Direct start of oral intake following esophagectomy has no impact on early nutritional re-interventions and long-term weight loss. PMID- 29025082 TI - Intestinal absorption of vitamin D: a systematic review. AB - Context: Vitamin D is frequently prescribed as a supplement, yet its absorption remains poorly understood. Objective: This systematic review was performed to evaluate data on mechanisms involved in the intestinal absorption of vitamin D. Data Sources: PubMed, Embase, and Cochrane Library databases were searched. Study Selection: The following studies were included: experimental laboratory studies of vitamin D absorption through the enterocyte brush-border membrane; absorption tests that used radiolabeled vitamin D; and clinical trials in adults that investigated a single dose of cholecalciferol or ergocalciferol and reported at least 2 measurements of serum cholecalciferol, ergocalciferol, or 25 hydroxyvitamin D. Data Extraction: From 2069 articles identified, 46 met the inclusion criteria. Results: Different methods were employed to evaluate vitamin D absorption. Recent research suggests that vitamin D absorption is not an exclusive simple diffusion process. Vitamin D was better absorbed when it was consumed with fat-containing meals, but absorption also occurred without fat or oily vehicles. Factors that modified cholesterol absorption also altered vitamin D absorption. Conclusion: Vitamin D is probably absorbed through passive diffusion and a mechanism involving membrane carriers, especially cholesterol transporters, although data remain scarce. Some data suggest that fat, when consumed concomitantly with vitamin D, improves vitamin D absorption. PMID- 29025080 TI - Exposure to perchlorate, nitrate and thiocyanate, and prevalence of diabetes mellitus. AB - Background: It is known that perchlorate, nitrate and thiocyanate have the property of inhibiting sodium iodide symporter. Animal studies have suggested that these compounds, especially perchlorate, might also interfere with insulin secretion. However, the association between their exposure and diabetes risk is largely unknown in humans. Methods: Among 11 443 participants (mean age 42.3 years) from the National Health and Nutritional Examination Survey 2001-14, urinary perchlorate, nitrate and thiocyanate were measured by using ion chromatography coupled with electrospray tandem mass spectrometry. Diabetes was defined as self-reported doctor diagnosis, use of oral hypoglycaemic medication or insulin, fasting plasma glucose >= 126 mg/dl or glycated haemoglobin A1c (HbA1c) >= 6.5%. Results: The median (interquartile range) levels of urinary perchlorate, nitrate and thiocyanate were 3.32 (1.84, 5.70) MUg/l, 46.4 (27.9, 72.0) mg/l and 1.23 (0.59, 2.78) mg/l, respectively. Higher levels of urinary perchlorate were associated with elevated levels of fasting glucose, HbA1c, insulin and homeostatic model assessment of insulin resistance (all Ptrend < 0.001). After multivariate adjustment including urinary creatinine, smoking status and body mass index (BMI), higher urinary perchlorate, but not nitrate or thiocyanate, was associated with an increased prevalence of diabetes mellitus. Comparing extreme quintiles, the odds ratio (95% confidence interval) of diabetes was 1.53 (1.21, 1.93; Ptrend < 0.001) for perchlorate, 1.01 (0.77, 1.32; Ptrend = 0.44) for nitrate and 0.98 (0.73, 1.31; Ptrend = 0.64) for thiocyanate. When urinary perchlorate, nitrate and thiocyanate were further mutually adjusted, the results did not materially change. Similar results were observed when analyses were stratified by smoking status, as well as by age, gender, kidney function and BMI. Conclusions: Higher urinary perchlorate levels are associated with an increased prevalence of diabetes mellitus, independent of traditional risk factors. Future prospective studies are needed to confirm these findings. PMID- 29025083 TI - The duration of protection of school-aged BCG vaccination in England: a population-based case-control study. AB - Background: Evidence of protection from childhood Bacillus Calmette-Guerin (BCG) against tuberculosis (TB) in adulthood, when most transmission occurs, is important for TB control and resource allocation. Methods: We conducted a population-based case-control study of protection by BCG given to children aged 12-13 years against tuberculosis occurring 10-29 years later. We recruited UK born White subjects with tuberculosis and randomly sampled White community controls. Hazard ratios and 95% confidence intervals (CIs) were estimated using case-cohort Cox regression, adjusting for potential confounding factors, including socio-economic status, smoking, drug use, prison and homelessness. Vaccine effectiveness (VE = 1 - hazard ratio) was assessed at successive intervals more than 10 years following vaccination. Results: We obtained 677 cases and 1170 controls after a 65% response rate in both groups. Confounding by deprivation, education and lifestyle factors was slight 10-20 years after vaccination, and more evident after 20 years. VE 10-15 years after vaccination was 51% (95% CI 21, 69%) and 57% (CI 33, 72%) at 15-20 years. Subsequently, BCG protection appeared to wane; 20-25 years VE = 25% (CI -14%, 51%) and 25-29 years VE = 1% (CI -84%, 47%). Based on multiple imputation of missing data (in 17% subjects), VE estimated in the same intervals after vaccination were similar [56% (CI 33, 72%), 57% (CI 36, 71%), 25% (-10, 48%), 21% (-39, 55%)]. Conclusions: School-aged BCG vaccination offered moderate protection against tuberculosis for at least 20 years, which is longer than previously thought. This has implications for assessing the cost-effectiveness of BCG vaccination and when evaluating new TB vaccines. PMID- 29025084 TI - Association between adult height, myocardial infarction, heart failure, stroke and death: a Korean nationwide population-based study. AB - Background: The association between adult height and cardiovascular (CV) events and mortality has been suggested, albeit inconsistently. We sought to discover the comprehensive relationship between height, CV-related morbidity and all-cause death according to age. Methods: We investigated the association between adult height and myocardial infarction (MI), heart failure (HF), stroke incidence and mortality in 16 528 128 Korean patients who underwent regular health check-ups (2005-08). Height was stratified by decile according to age (20-39 years, 40-59 years and >=60 years) and gender. Results: During a 9-year follow-up period, 590 346 participants died and 232 093 were admitted to hospital for MI, 201 411 for HF and 267 566 for stroke. An inverse relationship between height and MI, HF, stroke and all-cause death was observed in the overall cohort analysis. The association was unchanged after adjusting for CV risk and behavioural and adulthood socioeconomic factors. Both male and female sex showed an inverse relationship with height in adulthood, CV events and mortality. Adult height showed an inverse association in all CV events and mortality, especially in the older groups (>=40 years). In a subgroup analysis of body mass index, there was an inverse relationship between height, CV events and mortality in each group. Conclusions: Shorter height in adulthood was strongly related to an increased risk of MI, HF, stroke and all-cause death. A suitable environment and appropriate nutrition early in life could influence adult height and eventually reduce the risk of CV events and mortality. PMID- 29025085 TI - Effects of Buprenorphine on Responses to Emotional Stimuli in Individuals with a Range of Mood Symptomatology. AB - Background: The opioid drug buprenorphine has been shown to modify responses to emotional stimuli and may have antidepressant properties. In preclinical studies, it shows antidepressant-like and anxiolytic-like effects, and a handful of clinical studies suggest it may reduce symptoms of depression in patients. We have shown that low doses of buprenorphine reduce responses to negative emotional stimuli in healthy adults. Here we extended these findings to individuals with symptoms of depression and anxiety. Methods: We examined the effects of buprenorphine on attention to emotional facial expressions and ratings of and psychophysiological responses to emotional images in adults with a range of mood symptomatology. Volunteers (n=38) were recruited with low, mild, moderate, and severe scores on the Depression-Anxiety-Stress Scale. They attended 2 laboratory sessions during which they received either placebo or 0.2 mg sublingual buprenorphine in randomized order under double-blind conditions. During peak drug effect, participants completed a visual attention task assessing responses to emotional faces and a picture-rating task assessing responses to emotional images with and without social content. Results: Buprenorphine reduced attention to fearful facial expressions as it did in our previous study, and the emotion specific effect was especially pronounced in individuals with high Depression Anxiety-Stress Scale scores. The drug also increased ratings of positivity of images with social content, but this effect was less strong in individuals with higher Depression-Anxiety-Stress Scale scores. Conclusions: These results suggest low doses of buprenorphine may reduce some dimensions of responses to negative emotional stimuli in individuals high on depression or anxiety, while leaving other dimensions unaffected. PMID- 29025086 TI - A critical appraisal of guidelines for electronic communication between patients and clinicians: the need to modernize current recommendations. AB - Background: Patient-provider electronic communication has proliferated in recent years, yet there is a dearth of published research either leading to, or including, recommendations that improve clinical care and prevent unintended negative consequences. We critically appraise published guidelines and suggest an agenda for future work in this area. Objective: To understand how existing guidelines align with current practice, evidence, and technology. Methods: We performed a narrative review of provider-targeted guidelines for electronic communication between patients and providers, searching Ovid MEDLINE, Embase, and PubMed databases using relevant terms. We limited the search to articles published in English, and manually searched the citations of relevant articles. For each article, we identified and evaluated the suggested practices. Results: Across 11 identified guidelines, the primary focus was on technical and administrative concerns, rather than on relational communication. Some of the security practices recommended by the guidelines are no longer needed because of shifts in technology. It is unclear the extent to which the recommendations that are still relevant are being followed. Moreover, there is no guideline-cited evidence of the effectiveness of the practices that have been proposed. Conclusion: Our analysis revealed major weaknesses in current guidelines for electronic communication between patients and providers: the guidelines appear to be based on minimal evidence and offer little guidance on how best to use electronic tools to communicate effectively. Further work is needed to systematically evaluate and identify effective practices, create a framework to evaluate quality of communication, and assess the relationship between electronic communication and quality of care. PMID- 29025087 TI - Field Measurements of Inadvertent Ingestion Exposure to Metals. AB - The determinants of inadvertent occupational ingestion exposure are poorly understood, largely due to a lack of available exposure measurement data. In this study, perioral exposure wipes were used as a surrogate for inadvertent ingestion exposure to measure exposure to eight metals (chromium, nickel, aluminium, cobalt, lead, arsenic, manganese, and tin) among 38 workers at 5 work sites in the UK. This work was done alongside a previously reported observational study of hand/object-to-mouth contact frequency. Systematic wipes of the perioral area, and of both hands were taken with proprietary cellulose wipes pre-moistened with deionized water. Measurements were taken at the beginning, middle and end of the shift. Mixed-effect models of exposure measurements were built with area of skin sampled, time during shift, and job group entered as fixed effects and worker identification as a random effect. Linear regression modelling was used to study the effect of hand/object-to-mouth contact frequency on perioral exposure, adjusting for the measured exposure on the hand and observed respirator use. Hand and perioral exposure measurements were correlated with one another (r = 0.79) but mass per unit area exposure was significantly higher on the perioral area than on the hands for seven of the metals (at P < 0.05). There were no significant differences between measurements taken at the middle or the end of the shift for five of the metals suggesting that dermal loading may remain relatively constant for much of the workday. This applies to both hand and perioral measurements. In linear regression modelling there was no relationship between hand/object-to-mouth contact frequency and perioral exposure, but hand exposure was significantly positively related to perioral exposure and workers who used respirators had significantly higher perioral exposure than those who did not. The results suggest the levels of exposure on the hand and respirator use are important determinants of potential inadvertent ingestion exposure. The results did not demonstrate a relationship between perioral exposure and hand-to mouth contact frequency. Perioral wipe sampling may be a useful surrogate measure for exposure by the inadvertent ingestion route, but further research is required to confirm the link between perioral levels and actual exposure, measured using biological monitoring. PMID- 29025089 TI - Oral Ketamine for Acute Pain Management After Amputation Surgery. AB - Objective: Intravenous ketamine has been shown to provide postoperative analgesia in many clinical trials, in particular to reduce opioid consumption. The primary objective of this pilot study is to determine if multiple dosing over a three-day perioperative period with oral ketamine is a safe treatment method for acute pain after amputation surgery. Methods: Three consented subjects (age 57-60 years) undergoing elective amputation of the lower extremity were included in the study (Institutional Review Board and Food and Drug Administration Investigational New Drug approved). An analgesic dose of oral ketamine (1.0 mg/kg) was administered one hour before surgery. Eight hours after the preoperative dose, a second dose was given. On the first postoperative day, subjects received oral ketamine (1.0 mg/kg) three times per day; and on the second postoperative day, this dose was reduced to 0.5 mg/kg three times per day. The primary outcome measure was the incidence of adverse events. Results: No serious and unexpected adverse events occurred; therefore, no subject required a dose reduction. The numerical rating score for postoperative pain of the body part adjacent to the amputation site ranged from 0.5-4.0. Morphine milligram equivalent opioid doses were in the range of 0-17.5 mg on the first postop day and 1.0-4.0 mg on the second postop day. Conclusions: Our pilot study suggests that oral ketamine is safe to use at 1 mg/kg three times per day, as well as convenient for hospital floor and potential home use. Future studies will determine if the perioperative oral ketamine also reduces the incidence of chronic stump or phantom limb pain. PMID- 29025088 TI - Cohort Profile: The Siyakhula Cohort, rural South Africa. PMID- 29025090 TI - Effect of number of open charts on intercepted wrong-patient medication orders in an emergency department. AB - To reduce the risk of wrong-patient errors, safety experts recommend allowing only one patient chart to be open at a time. Due to the lack of empirical evidence, the number of allowable open charts is often based on anecdotal evidence or institutional preference, and hence varies across institutions. Using an interrupted time series analysis of intercepted wrong-patient medication orders in an emergency department during 2010-2016 (83.6 intercepted wrong patient events per 100 000 orders), we found no significant decrease in the number of intercepted wrong-patient medication orders during the transition from a maximum of 4 open charts to a maximum of 2 (b = -0.19, P = .33) and no significant increase during the transition from a maximum of 2 open charts to a maximum of 4 (b = 0.08, P = .67). These results have implications regarding decisions about allowable open charts in the emergency department in relation to the impact on workflow and efficiency. PMID- 29025091 TI - Commentary: A pancreatic cancer incidence and mortality gap? PMID- 29025092 TI - Heat stress induces autophagy in pig ovaries during follicular development. AB - Hyperthermia or heat stress (HS) occurs when heat dissipation mechanisms are overwhelmed by external and internal heat production. Hyperthermia negatively affects reproduction and potentially compromises oocyte integrity and reduces developmental competence of ensuing embryos. Autophagy is the process by which cells recycle energy through the reutilization of cellular components and is activated by a variety of stressors. Study objectives were to characterize autophagy-related proteins in the ovary following cyclical HS during the follicular phase. Twelve gilts were synchronized and subjected to cyclical HS (n = 6) or thermal neutral (n = 6) conditions for 5 days during the follicular phase. Ovarian protein abundance of Beclin 1 and microtubule associated protein light chain 3 beta II were each elevated as a result of HS (P = 0.001 and 0.003, respectively). The abundance of the autophagy related (ATG)12-ATG5 complex was decreased as a result of HS (P = 0.002). Regulation of autophagy and apoptosis occurs in tight coordination, and B-cell lymphoma (BCL)2 and BCL2L1 are involved in regulating both processes. BCL2L1 protein abundance, as detected via immunofluorescence, was increased in both the oocyte (~1.6-fold; P < 0.01) and granulosa cells of primary follicles (~1.4-fold P < 0.05) of HS ovaries. These results suggest that ovarian autophagy induction occurs in response to HS during the follicular phase, and that HS increases anti-apoptotic signaling in oocytes and early follicles. These data contribute to the biological understanding of how HS acts as an environmental stress to affect follicular development and negatively impact reproduction. PMID- 29025093 TI - Discharge communication practices and healthcare provider and patient preferences, satisfaction and comprehension: A systematic review. AB - Purpose: To systematically review the available evidence about hospital discharge communication practices and identify which practices were preferred by patients and healthcare providers, improved patient and provider satisfaction, and increased patients' understanding of their medical condition. Data sources: OVID Medline, Web of Science, ProQuest, PubMed and CINAHL plus. Study selection: Databases were searched for peer-reviewed, English-language papers, published to August 2016, of empirical research using quantitative or qualitative methods. Reference lists in the papers meeting inclusion criteria were searched to identify further papers. Data extraction: Of the 3489 articles identified, 30 met inclusion criteria and were reviewed. Results of data synthesis: Much research to date has focused on the use of printed material and person-based discharge communication methods including verbal instructions (either in person or via telephone calls). Several studies have examined the use of information technology (IT) such as computer-generated and video-based discharge communication practices. Utilizing technology to deliver discharge information is preferred by healthcare providers and patients, and improves patients' understanding of their medical condition and discharge instructions. Conclusion: Well-designed IT solutions may improve communication, coordination and retention of information, and lead to improved outcomes for patients, their families, caregivers and primary healthcare providers as well as expediting the task for hospital staff. PMID- 29025095 TI - The Mediterranean diet and risk of colorectal cancer in the UK Women's Cohort Study. AB - Background: Evidence from epidemiological studies investigating associations between adherence to the Mediterranean diet and colorectal cancer is inconsistent. The aim of this study is to assess in the UK Women's Cohort Study whether adherence to the Mediterranean dietary pattern is associated with reduced incidence of cancers of the colon and rectum. Method: A total of 35 372 women were followed for a median of 17.4 years. A 10-component score indicating adherence to the Mediterranean diet was generated for each cohort participant, using a 217-item food frequency questionnaire. The Mediterranean diet score ranged from 0 for minimal adherence to 10 for maximal adherence. Cox proportional hazards regression was used to provide adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for colon and rectal cancer risk. Results: A total of 465 incident colorectal cancer cases were documented. In the multivariable adjusted model, the test for trend was positive (HR = 0.88, 95% CI: 0.78 to 0.99; Ptrend = 0.03) for a 2-point increment in the Mediterranean diet score. For rectal cancer, a 2-point increment in the Mediterranean diet score resulted in an HR (95% CI) of 0.69 (0.56 to 0.86), whereas a 62% linear reduced risk (HR 0.38; 95% CI: 0.20 to 0.74; Ptrend < 0.001) was observed for women within the highest vs the lowest category of the MD score. Estimates for an association with colon cancer were weak (Ptrend = 0.41). Conclusions: Findings suggest that women adhering to a Mediterranean dietary pattern may have a lower risk of colorectal cancer, especially rectal cancer. PMID- 29025096 TI - Efficacy of Vibrating Gloves for Chronic Hand Pain due to Osteoarthritis. AB - Objective: This study investigated the efficacy of vibration technology for women with hand pain due to osteoarthritis (OA) to see if mild compression and small vibrating motors were beneficial with periodic use. Methods: Sixty-nine (N = 69) women with OA hand pain were randomized into two groups, one that used vibrating gloves once a day for 20 minutes (Experimental, N = 34) and one that was monitored for three months without gloves (Control, N = 35). All subjects completed baseline questionnaires, were administered mechanical quantitative sensory testing (QST), and uploaded a smartphone pain app for daily assessment. Patients were included if they had chronic pain for more than three months, reported a 4 or higher on a 0-10 pain intensity scale, and could speak and understand English. Results: In general, compared with the control subjects, those in the experimental condition demonstrated reduced pain intensity (P < 0.05) after using the vibrating gloves. No differences were found between groups on activity interference, mood, or sleep. No differences were also noted based on age, pain duration, hand dominance, weight, body mass index, or hours sleeping. Those with greater sensitivity on QST demonstrated more disability, emotional distress, and pain catastrophizing (P < 0.05) but no differences in pain relief from or satisfaction with the vibrating gloves. Discussion: Overall, the results demonstrated that the vibrating gloves were moderately helpful in reducing hand pain in women with OA (53.5%), and most expressed willingness to use the gloves (71.4%) and use the pain app (55.8%) in the future. Additional studies to determine the mechanism of action of the gloves in managing pain would be recommended. PMID- 29025094 TI - The descriptive epidemiology of the diurnal profile of bouts and breaks in sedentary time in older English adults. AB - Background: High sedentary time is associated with adverse metabolic health outcomes and mortality in older adults. It has been suggested that breaking up sedentary time may be beneficial for metabolic health; however, population prevalence data are lacking on the patterns of sedentary behaviour which would identify opportunities for intervention. Methods: We used data of adults aged >= 60 years (n = 3705) from the population-based EPIC-Norfolk cohort, to characterize the patterns of total sedentary time, breaks in sedentary time and sedentary bouts across the day and assess their associations with participant characteristics, using multi-level regression. Sedentary time was measured objectively by a hip-mounted accelerometer (ActigraphTM GT1M) worn for 7 days during waking time. Results: More than 50% of every waking hour was spent sedentary, increasing to a peak of 83% in the evening. On average fewer breaks were accrued in the evenings compared with earlier in the day. Marginally more sedentary time was accrued on weekend days compared with weekdays (difference 7.4 min, 95% confidence interval 5.0-9.7). Large proportions of this sedentary time appear to be accrued in short bouts (bouts of < 10 min for 32% of the time). Older age, being male, being retired, not being in paid employment and having a higher body mass index were associated with greater sedentary time and fewer breaks. Conclusion: Sedentary time is common throughout the day but peaks in the evenings with fewer breaks and longer bouts. We identified a number of characteristics associated with sedentary time and additionally inversely associated with sedentary breaks, which should inform the development and targeting of strategies to reduce sedentary time among older adults. PMID- 29025097 TI - Measuring the impact of differences in risk factor distributions on cross population differences in disease occurrence: a causal approach. AB - Background: In cross-population comparisons of disease occurrence (prevalence, incidence), a common public health question is the extent to which variations in the distribution of risk factors for the disease explain observed differences. Limited work has been done on formalizing this problem, which is conceptually tantamount to quantifying the degree of confounding for the 'population effect' induced by different factors. A common approach is to compare 'unadjusted' and 'adjusted' regression-based estimates of that parameter, but the interpretation of the resulting 'contribution' measures may be hindered by other confounding sources and non-collapsibility issues. Interactions also raise interpretational challenges. Methods: We formalized this problem using directed acyclic graphs and the potential outcomes framework, on the basis of which we defined a series of estimands that address specific questions and are identifiable under certain causal assumptions. We subsequently determined possible estimators. A study of regional differences in egg allergy prevalence in 1-year-olds was used for illustration. Results: The main estimands defined were: the change in the prevalence or incidence difference induced by compositional variations in measured risk factors, all at once and individually, relative to a reference population; and the proportion of the crude difference that remains unexplained by measured factors. Standardization (g-computation), inverse probability weighted (IPW) and doubly robust IPW estimators of these estimands were considered. Conclusions: This work provides a causal theoretical basis for studying disease occurrence differences between populations. The proposed measures can be used to answer the questions that arise in this context under a set of clearly stated assumptions. PMID- 29025098 TI - Corrigendum to: Meaningful use of health information technology and declines in in-hospital adverse drug events. PMID- 29025100 TI - An Examination of Pain's Relationship to Sleep Fragmentation and Disordered Breathing Across Common Sleep Disorders. AB - Objective: Short sleep duration and insomnia have been linked to higher pain and an increased risk of developing chronic pain, but relatively little research has examined the contribution of sleep disordered breathing (SDB) to pain. This study examined the unique contributions of SDB and insomnia to chronic pain. Subjects: Adult patients referred to an academic sleep center for overnight polysomnography were invited to participate. Methods: Participants (N = 105) completed questionnaires about their sleep and pain, including the Insomnia Severity Index, Medical College of Virginia Pain Questionnaire, and two weeks of sleep/pain diaries. Results: Most participants (80.00%) reported chronic pain, and the likelihood of having chronic pain did not differ by sleep disorder. However, there was a significant difference in pain intensity; individuals with comorbid obstructive sleep apnea (OSA)/insomnia reported an average pain intensity that was 20 points (out of 100) higher than individuals with insomnia or no diagnosis and 28 points higher than those with OSA, controlling for participant sex (Ps < 0.05). In a hierarchical regression, pain was unrelated to measures of sleep fragmentation (apnea-hypopnea index, spontaneous arousals, periodic leg movement arousals) and nocturnal hypoxemia (SaO2 nadir, time at or below 88% SaO2). Conclusions: Polysomnography measures of SDB severity and sleep fragmentation were unrelated to pain intensity. However, comorbid OSA/insomnia was associated with significantly higher pain (compared with either disorder in isolation), a finding that has implications for the treatment of chronic pain and possibly for understanding the mechanisms of chronic pain. PMID- 29025099 TI - Dutch surgeons' views on the volume-outcome mechanism in surgery: A qualitative interview study. AB - Objective: To contribute to a better understanding of volume-outcome relationships in surgery by exploring Dutch surgeons' views on the underlying mechanism. Design: A qualitative study based on face-to-face semi structured interviews and an inductive content analysis approach. Setting: Interviews were conducted in eight hospitals in the Netherlands (2 university, 4 teaching and 2 general). Participants: Twenty surgeons (gastrointestinal, vascular and trauma). Main outcome measure(s): Dutch surgeons' views on volume-outcome relationships in surgery and the underlying mechanism. Results: The majority of surgeons believed volume is related to outcomes after surgery. Interviewees highlighted the importance of both focus and skills when describing the underlying mechanism. Focus was visible on three levels: hospital, surgeon and team. Focus on a hospital level referred to investing in specific infrastructure and dedicated personnel. Surgeons described both the benefits and downsides of surgeons' increased focus to a certain surgical subspeciality. And their experiences on the importance of working with fixed, procedure-specific teams. The positive influence of caseload on technical and nontechnical skills was acknowledged, as well as the benefits of combining skills by operating together. Although a basic skill set should be maintained, this does not necessarily require high volume. Conclusions: Focus and skills are important explanatory factors in volume-outcome relationships according to Dutch surgeons. This suggests that both high- and low volume providers should enable specialized, fixed teams for complex surgeries and focus on maintenance of both their technical and nontechnical skills. By uncovering the underlying mechanism, imperfect quality indicators such as volume can be supplemented or replaced. PMID- 29025101 TI - New Chapter for Biology of Reproduction. PMID- 29025103 TI - Commentary: Intrauterine exposure to artificially sweetened beverages and offspring adiposity: is this the tip of the iceberg? PMID- 29025104 TI - Implementation of a Brief Abuse and Basic Needs Tool: Impact on Utilization of Social Services in Ambulatory Medical Clinics. AB - Domestic violence (DV) screening has become increasingly common in recent years; however, many organizations still do not practice universal screening, and there is considerable debate concerning the best screening tool for detecting DV. The current research suggests that a brief tool would be ideal and that existing brief tools are comparable to more extensive instruments. Per Joint Commission standards, the ambulatory clinics at West Virginia University Hospitals instituted the use of the Functional Health Screening (FHS), a three-item tool that screens for unexplained weight changes, DV, and basic needs deficits. This tool is administered at the beginning of every outpatient clinic visit. This study includes a retrospective chart review to investigate the detection rate of this tool for DV and basic needs deficits, the increased utilization of social services, and nursing attitudes concerning FHS. PMID- 29025102 TI - Effects of noncavity-distorting fibroids on endometrial gene expression and function. AB - Uterine fibroids are a common finding in infertility patients. Impaired implantation and decidualization have been proposed to contribute to compromised fertility. Data are limited on the endometrial transcriptome from subjects with uterine fibroids, as well as endometrial receptivity and decidualization potential of endometrial stromal fibroblasts (eSF) from women with fibroids. Our objective was to investigate the endometrial transcriptome of women with noncavity-distorting intramural fibroids and compare them to control subjects with no uterine pathology throughout the menstrual cycle. We also evaluated endometrial receptivity gene expression and basic endometrial functions such as decidualization, proliferation, and apoptosis in women with fibroid uterus. Results showed that large numbers of transcripts were significantly dysregulated throughout the menstrual cycle in fibroid subjects compared to controls. However, there were essentially no differences in the expression of receptivity markers at the tissue level, as well as decidualization markers in tissue and eSF in subjects with fibroids compared to controls. However, eSF from women with a fibroid uterus exhibited decreased proliferation potential and increased apoptosis upon decidualization. These data indicate preserved implantation and decidualization potential despite observed gene expression changes in endometrium from women with noncavity-distorting fibroids compared to controls. How this phenomenon and altered proliferation/apoptosis may contribute to impairment of endometrial function in subfertile patients warrants further investigation. PMID- 29025105 TI - Pemphigus vulgaris. PMID- 29025106 TI - Intense Focused Ultrasound Preferentially Stimulates Transected Nerves Within Residual Limbs: Pilot Study. AB - Objective: Identifying pain generators in tissue deep in the skin can require uncomfortable, complicated, and invasive tests. We describe pilot studies testing the hypothesis that ultrasound image-guided, intense focused ultrasound (ig-iFU) can noninvasively and differentially stimulate the end of transected nerves in the residual limbs of amputee patients. Design: We applied iFU to the transected nerve ending as individual pulses with a length of 0.1 seconds using a carrier frequency of 2.0 MHz. After targeting, we gradually increased the iFU intensity to reach consistent patient-reported stimulation of the transected nerve ending. We also stimulated the proximal nerve, tissue near the nerve ending, and the intact contralateral nerve. We described the resulting sensations and correlated the results of the study participant's pre-iFU study responses to phantom and residual limb pain questionnaires. Results: iFU spatial and temporal average intensity values between 16 W/cm2 and 433 W/cm2 that were applied to the transected nerve ending and proximal nerve elicited sensations, including phantom limb sensations, while the same intensity applied to control tissue centimeters away from the nerve ending, or to the intact nerve on the contralateral limb, did not. Two out of 11 study participants reported only mild and transient pain created by iFU stimulation. Successful iFU intensity values correlated with neither phantom nor residual limb pain scores. Conclusions: Transected nerves had greater sensitivity to iFU stimulation than ipsilateral and contralateral control tissue, including intact nerve. These results support the view that ig-iFU may one day help physicians identify deep, tender tissue in patients who report experiencing pain. PMID- 29025109 TI - Commentary: On R. A. Fisher's paper 'The causes of human variability', 1918. PMID- 29025107 TI - Vanishing twin syndrome among ART singletons and pregnancy outcomes. AB - STUDY QUESTION: Among babies born by ART, do singleton survivors of a vanishing twin have lower birth weight than other singletons? SUMMARY ANSWER: Vanishing twin syndrome (VTS) was associated with lower birth weight among ART singletons; a sibship analysis indicated that the association was not confounded by maternal characteristics that remain stable between deliveries. WHAT IS KNOWN ALREADY: Previous studies indicate that ART singletons with VTS have increased risk of adverse pregnancy outcomes, compared with other ART singletons. The potential contribution of unmeasured maternal background characteristics has been unclear. STUDY DESIGN, SIZE AND DURATION: This was a Norwegian population-based registry study, including 17 368 mothers with 20 410 ART singleton deliveries between January 1984 and December 2013. PARTICIPANTS/MATERIALS, SETTING, METHODS: The study population included 17 291 ART singletons without VTS, 638 ART singletons with VTS and 2418 ART singletons with uncertain vanishing twin status. We estimated differences in birth weight and gestational age comparing ART singletons with VTS first to all ART singletons without VTS, and subsequently to their ART siblings without VTS, using random- and fixed-effects linear regression, respectively. The corresponding comparisons for the associations with preterm birth and small for gestational age (SGA) were conducted using random-and fixed-effects logistic regression. The sibling analysis of preterm birth included 587 discordant siblings, while the sibling analysis of SGA included 674 discordant siblings. MAIN RESULTS AND THE ROLE OF CHANCE: ART singletons with VTS had lower birth weight when compared to all ART singletons without VTS, with an adjusted mean difference (95% CI) of -116 g (-165, -67). When we compared ART singletons with VTS to their ART singletons sibling without VTS, the adjusted mean difference was -112 g (-209, -15). ART singletons with VTS also had increased risk of being born SGA, with an adjusted odds ratio (OR) (95% CI) of 1.48 (1.07, 2.03) compared to all ART singletons without VTS, and 2.79 (1.12, 6.91) in the sibship analyses. ART singletons with VTS were also more likely to be born preterm, although this difference did not reach statistical significance. LIMITATIONS REASONS FOR CAUTION: We did not have information on maternal socio economic status, but this factor is accounted for in the sibship analyses. We also had no information on whether fresh or frozen embryos were replaced. WIDER IMPLICATIONS OF THE FINDINGS: The reduction in birth weight and increased risk of SGA in ART singletons with VTS may suggest the presence of harmful intrauterine factors with long-term health impact. While vanishing twins are not routinely observed in naturally conceived pregnancies, loss of a twin is potentially a risk factor for the surviving foetus in any pregnancy. This could be further explored in large samples of naturally conceived pregnancies with the necessary information. STUDY FUNDING/COMPETING INTEREST(S): The authors of this study are supported in part by the UK Medical Research Council, US National Institute of Environmental Health Sciences and the Norwegian Research Council. The authors have no conflicts of interest. TRIAL REGISTRATION NUMBER: N/A. PMID- 29025110 TI - Effect of Continuous Local Anesthetic in Post-Cardiac Surgery Patients: A Systematic Review. AB - Objective: The purpose of this review was to determine the effect of CLA infusion post cardiac surgery on pain, time to ambulation, severe adverse events, patient satisfaction, time to extubation, length of stay in the intensive care unit and in the hospital, total narcotic consumption, and pulmonary function. Design: Systematic review with meta-analysis (PROSPERO CRD42014010188). Methods: We searched the following electronic databases: the Cochrane Central Register of Controlled Trials (CENTRAL); MEDLINE; EMBASE; CINAHL; Allied and Complementary Medicine (AMED); and PsycINFO; as well as hand-searching cardiothoracic surgery and anesthetic journals and meeting abstracts. Results: Ten eligible trials with a total of 546 participants were identified. Meta-analyses showed that CLA infusion significantly reduced the total mean visual analog pain score at 72 hours (mean difference [MD] = -14.31 mm, 95% confidence interval [CI] = -25.59 to -3.03); time to ambulation (MD = -2.81 hours, 95% CI = -5.23 to -0.4); morphine requirement (MD = -10.19 mg, 95% CI = -11.80 to -8.58) but did not reduce time to ambulate to chair (MD = -1.65 hours, 95% CI = -4.04 to 0.74); time to extubation (MD = -0.18 hours, 95% CI = -1.24 to 0.89); length of ICU stay (MD = 0.9 hours, 95% CI = -2.96 to 4.75); and hospital length of stay (MD = -0.59 days, 95% CI = 1.24 to 0.07). There were insufficient data to perform a meta-analysis on severe adverse events, patient satisfaction, or pulmonary function. Conclusions: CLA infusion after cardiac surgery reduces pain score at 72 hours, shortens time to ambulation, and reduces morphine consumption at 48 hours. PMID- 29025111 TI - Protective effects of household-based TB interventions are robust to neighbourhood-level variation in exposure risk in Lima, Peru: a model-based analysis. AB - Background: Untargeted active screening and treatment programmes for tuberculosis (TB) have not been shown to be more effective than passive screening and isoniazid preventive therapy (IPT) for reducing TB incidence. In this manuscript, we compare the efficacy of targeting screening and IPT on high-risk household contacts of diagnosed TB cases, with less-targeted active screening approaches in Lima, Peru. Methods: We conducted a population-based prospective cohort study within households of TB cases in Lima. We identified all adults diagnosed with incident pulmonary TB from 2009 through 2012 at 106 participating public health centres (HC) within our catchment area of ~3.3 million inhabitants. We estimated combined effects of community and household exposure on the risk of latent TB infection (LTBI) and incident TB disease. We used simulation modelling to assess the efficacy of TB screening programmes for reducing the risk of incident TB in these contacts. Results: Individuals with household exposure to TB are more likely to present with LTBI and TB disease than those without this exposure, despite wide variation in community exposure. Simulations suggest that more cases are prevented by 1000 administrations of IPT to tuberculin skin test (TST) positive household contacts of identified TB cases (30, 95% CI = 16,47) than from blanket screening and treatment in the community (7, 95% CI = 2,17). Conclusions: Household exposure remains a major driver of incident TB risk among household contacts of identified TB cases. Targeting interventions on these individuals is likely to prevent more cases of TB than blanket screening of individuals in the community. PMID- 29025108 TI - HDL-cholesterol levels and risk of age-related macular degeneration: a multiethnic genetic study using Mendelian randomization. AB - Background: Dyslipidemia, particularly high-density lipoprotein cholesterol (HDL C), has recently been implicated in the pathogenesis of age-related macular degeneration (AMD), the leading cause of vision loss. However, epidemiological studies have yielded conflicting results. Methods: We investigated the causal role of plasma lipid levels in AMD in multiethnic populations comprising 16 144 advanced AMD cases and 17 832 controls of European descent, together with 2219 cases and 5275 controls of Asian descent, using Mendelian randomization in three models. Model 1 is a conventional meta-analysis which does not account for pleiotropy of instrumental variable (IV) effects. Model 2 is a univariate, inverse variance weighted regression analysis that accounts for potential unbalanced pleiotropy using MR-Egger method. Finally, Model 3 is a multivariate regression analysis that addresses pleiotropy by MR-Egger method and by adjusting for effects on other lipid traits. Results: A 1 standard deviation (SD) higher HDL-cholesterol level was associated with an odds ratio (OR) for AMD of 1.17 (95% confidence interval: 1.07-1.29) in Europeans (P = 6.88 * 10-4) and of 1.58 (1.24 2.00) in Asians (P = 2.92 * 10-4) in Model 3. The corresponding OR estimates were 1.30 (1.09-1.55) in Europeans (P = 3.18 * 10-3) and 1.42 (1.11-1.80) in Asians (P = 4.42 * 10-3) in Model 1, and 1.21 (1.11-1.31) in Europeans (P = 3.12 * 10-5) and 1.51 (1.20-1.91) in Asians (P = 7.61 * 10-4) in Model 2. Conversely, neither LDL-C (Europeans: OR = 0.96, P = 0.272; Asians: OR = 1.02, P = 0.874; Model 3) nor triglyceride levels (Europeans: OR = 0.91, P = 0.102; Asians: OR = 1.06, P = 0.613) were associated with AMD. We also assessed the association between lipid levels and polypoidal choroidal vasculopathy (PCV) in Asians, a subtype of AMD, and found a similar trend for association of PCV with HDL-C levels. Conclusions: Our study shows that high levels of plasma HDL-C are causally associated with an increased risk for advanced AMD in European and Asian populations, implying that strategies reducing HDL-C levels may be useful to prevent and treat AMD. PMID- 29025112 TI - Sodium Phosphate Enemas do not Worsen Renal Function amongst Hospitalized Patients with Mild to Moderate Renal Failure. A Matched, Case-control study. AB - Background: Sodium Phosphate enemas (SPEs) are widely used amongst hospitalized patients despite their potential to worsen renal failure. The extent to which this side effect is clinically relevant is questionable. Methods: We conducted a matched case-control, retrospective study in a cohort of hospitalized patients. Patients treated and untreated with SPEs were matched for age, gender, baseline creatinine, usage of certain medications and several background diagnoses. Three groups of matched patients (whole study cohort, patients with baseline creatinine > 1.5 mg/dL and those with baseline creatinine > 2 mg/dL) were compared with regards to their creatinine and blood electrolyte concentrations during 3 consecutive hospitalization days after SPE application. Results: 412 patients were included in this study of which 206 were treated by single SPEs. Exact matching was done for the whole study cohort, for 108 patients with baseline creatinine > 1.5 mg/dL and for 58 patients with baseline creatinine > 2 mg/dL. During 3 consecutive days after SPEs, the maximal blood concentrations of creatinine, phosphor and potassium did not differ significantly between treated patients and matched controls, in all 3 patients' groups. Conclusion: Application of sodium phosphate enemas do not seem to worsen mild to moderate renal failure, nor are associated with hyperphosphatemia or hyperkalemia in patients hospitalized in internal medicine departments. PMID- 29025113 TI - Innovative Technology Using Virtual Reality in the Treatment of Pain: Does It Reduce Pain via Distraction, or Is There More to It? AB - Objective: Virtual reality (VR) is an exciting new technology with almost endless possible uses in medicine. One area it has shown promise is pain management. This selective review focused on studies that gave evidence to the distraction or nondistraction mechanisms by which VR leads to the treatment of pain. Methods: The review looked at articles from 2000 to July 29, 2016, focusing on studies concerning mechanisms by which virtual reality can augment pain relief. The data was collected through a search of MEDLINE and Web of Science using the key words of "virtual reality" and "pain" or "distraction." Results: Six studies were identified: four small randomized controlled studies and two prospective/pilot studies. The search results provided evidence that distraction is a technique by which VR can have benefits in the treatment of pain. Both adult and pediatric populations were included in these studies. In addition to acute pain, several studies looked at chronic pain states such as headaches or fibromyalgia. These studies also combined VR with other treatment modalities such as biofeedback mechanisms and cognitive behavioral therapy. Conclusions: These results demonstrate that in addition to distraction, there are novel mechanisms for VR treatment in pain, such as producing neurophysiologic changes related to conditioning and exposure therapies. If these new mechanisms can lead to new treatment options for patients with chronic pain, VR may have the ability to help reduce opioid use and misuse among chronic pain patients. More studies are needed to reproduce results from prospective/pilot studies in large randomized control studies. PMID- 29025114 TI - Comprehensive process model of clinical information interaction in primary care: results of a "best-fit" framework synthesis. AB - Objective: To describe a new, comprehensive process model of clinical information interaction in primary care (Clinical Information Interaction Model, or CIIM) based on a systematic synthesis of published research. Materials and Methods: We used the "best fit" framework synthesis approach. Searches were performed in PubMed, Embase, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsycINFO, Library and Information Science Abstracts, Library, Information Science and Technology Abstracts, and Engineering Village. Two authors reviewed articles according to inclusion and exclusion criteria. Data abstraction and content analysis of 443 published papers were used to create a model in which every element was supported by empirical research. Results: The CIIM documents how primary care clinicians interact with information as they make point-of-care clinical decisions. The model highlights 3 major process components: (1) context, (2) activity (usual and contingent), and (3) influence. Usual activities include information processing, source-user interaction, information evaluation, selection of information, information use, clinical reasoning, and clinical decisions. Clinician characteristics, patient behaviors, and other professionals influence the process. Discussion: The CIIM depicts the complete process of information interaction, enabling a grasp of relationships previously difficult to discern. The CIIM suggests potentially helpful functionality for clinical decision support systems (CDSSs) to support primary care, including a greater focus on information processing and use. The CIIM also documents the role of influence in clinical information interaction; influencers may affect the success of CDSS implementations. Conclusion: The CIIM offers a new framework for achieving CDSS workflow integration and new directions for CDSS design that can support the work of diverse primary care clinicians. PMID- 29025115 TI - Granulomatosis with polyangiitis as the differential diagnosis. PMID- 29025116 TI - Applications of network analysis to routinely collected health care data: a systematic review. AB - Objective: To survey network analyses of datasets collected in the course of routine operations in health care settings and identify driving questions, methods, needs, and potential for future research. Materials and Methods: A search strategy was designed to find studies that applied network analysis to routinely collected health care datasets and was adapted to 3 bibliographic databases. The results were grouped according to a thematic analysis of their settings, objectives, data, and methods. Each group received a methodological synthesis. Results: The search found 189 distinct studies reported before August 2016. We manually partitioned the sample into 4 groups, which investigated institutional exchange, physician collaboration, clinical co-occurrence, and workplace interaction networks. Several robust and ongoing research programs were discerned within (and sometimes across) the groups. Little interaction was observed between these programs, despite conceptual and methodological similarities. Discussion: We use the literature sample to inform a discussion of good practice at this methodological interface, including the concordance of motivations, study design, data, and tools and the validation and standardization of techniques. We then highlight instances of positive feedback between methodological development and knowledge domains and assess the overall cohesion of the sample. PMID- 29025117 TI - Preliminary Investigation of Workplace-Provided Compressed Mindfulness-Based Stress Reduction with Pediatric Medical Social Workers. AB - Mindfulness practices, including mindfulness meditation, show promise for decreasing stress among health care providers. This exploratory study investigates the feasibility of a two-day compressed mindfulness-based stress reduction (cMBSR) course provided in the hospital workplace with pediatric health care social workers. The standard course of Jon Kabat-Zinn's MBSR requires a participant commitment to eight weeks of instruction consisting of one 2.5-hour per-week class, a single day retreat, and 45 minutes of practice for six of seven days each week. Commitments to family, work, caregiving, education, and so on, as well as limitations such as distance, may prevent health care providers from participating in a standard MBSR course. Using t tests, researchers measured the effect of cMBSR on (a) positive and negative experiences in pediatric social work, (b) perceived stress, (c) mindfulness, and (d) caring self-efficacy (as a component of patient- and family-centered care). Results included significant differences between the pre- and post-intervention outcome variables on the Professional Quality of Life Secondary Traumatic Stress subscale, the Mindful Attention and Awareness Scale, and the Caring Efficacy Scale. Findings found adequate evidence for the feasibility of cMBSR design and for a need of a more rigorous study of the effects of the cMBSR intervention. PMID- 29025118 TI - Cohort Profile: The Australian Longitudinal Study on Women's Health (ALSWH) 1989 95 cohort. PMID- 29025119 TI - Response to Unit conversions between LOINC codes. PMID- 29025120 TI - Cohort Profile: The Atlantic Partnership for Tomorrow's Health (Atlantic PATH) Study. PMID- 29025121 TI - Acute ocular ischemic syndrome. PMID- 29025123 TI - Comparative epidemiology of Clostridium difficile infection: England and the USA. AB - Objective: To examine whether there is an epidemiological difference between Clostridium difficile infection (CDI) inpatient populations in England and the United States. Design: A cross-sectional study. Setting: National administrative inpatient discharge data from England (Hospital Episode Statistics) and the USA (National Inpatient Sample) in 2012. Participants: De-identifiable non-obstetric inpatient discharges from the national datasets were used to estimate national CDI incidence in the United States and England using ICD9-CM(008.45) and ICD10(A04.7) respectively. Main outcome measures: The rate of CDI was calculated per 100 000 population using national population estimates. Rate per 100 000 inpatient discharges was also calculated separated by primary and secondary diagnosis of CDI. Age, sex and Elixhauser comorbidities profiles were examined. Results: The USA had a higher rate of CDI compared to England: 115.1/100 000 vs. 19.3/100 000 population (P < 0.001). CDI age profiles differed between the countries (P < 0.001): in England, patients >=75 years constitute a larger proportion of CDI cases, whilst those aged 25-70 constitute more cases in the US (P < 0.001). Overall adjusted odds of CDI in females compared to males was elevated in both England (odds ratios (OR) 1.26 95% CI [1.21,1.31] P < 0.001) and the USA (OR 1.20 95% CI [1.18,1.22] P < 0.001). The proportion of CDI patients with comorbidities was greater in the USA compared to England apart from dementia, which was greater in England (9.63% vs. 1.25%, P < 0.0001). Conclusions: The 2012 inpatient CDI rate within the USA was much higher than in England. Age and comorbidity profiles also differed between CDI patients in both countries. The reasons for this are likely multi-factorial but may reflect national infection control policy. PMID- 29025124 TI - Increasing incidence of chronic subdural haematoma in the elderly. PMID- 29025122 TI - Software Application Profile: Opal and Mica: open-source software solutions for epidemiological data management, harmonization and dissemination. AB - Motivation: Improving the dissemination of information on existing epidemiological studies and facilitating the interoperability of study databases are essential to maximizing the use of resources and accelerating improvements in health. To address this, Maelstrom Research proposes Opal and Mica, two inter operable open-source software packages providing out-of-the-box solutions for epidemiological data management, harmonization and dissemination. Implementation: Opal and Mica are two standalone but inter-operable web applications written in Java, JavaScript and PHP. They provide web services and modern user interfaces to access them. General features: Opal allows users to import, manage, annotate and harmonize study data. Mica is used to build searchable web portals disseminating study and variable metadata. When used conjointly, Mica users can securely query and retrieve summary statistics on geographically dispersed Opal servers in real time. Integration with the DataSHIELD approach allows conducting more complex federated analyses involving statistical models. Availability: Opal and Mica are open-source and freely available at [www.obiba.org] under a General Public License (GPL) version 3, and the metadata models and taxonomies that accompany them are available under a Creative Commons licence. PMID- 29025125 TI - How well do general practitioners manage laboratory test results for patients with diabetes mellitus and cardiovascular disease?: A systematic review. AB - Purpose: To evaluate how well general practitioners (GPs) manage and respond to laboratory results for patients with diabetes mellitus (DM) and cardiovascular disease (CVD). Data sources: MEDLINE, CINAHL, Embase, EBM reviews, ProQuest and Scopus. Study selection: Peer-reviewed journal articles published between 2000 and 2015 that assessed GPs' management of laboratory results for patients with DM or CVD. Data extraction: Study design and demographics, laboratory tests and key findings relating to GP management of laboratory results were extracted from studies. Results of data synthesis: Thirteen articles were included, comprising seven studies which utilized surveys, four observational studies, one cohort study and one randomized controlled trial. Findings indicate that GPs often overestimate the risk of complications associated with DM and CVD based on laboratory results and have unrealistically high expectations regarding the precision of laboratory tests. Considerable variation existed in the use of repeat testing for diagnostic confirmation and in GPs' identification of the difference between two consecutive results required to indicate a change in patient condition. GPs also often failed to initiate appropriate treatment for patients with DM and CVD based on laboratory results. Feedback to GPs about their test ordering patterns and educational messages on laboratory results improved clinical outcomes. Conclusion: Evidence about how well GPs manage results and its impact on patient outcomes remains weak and inconclusive. This review identified a number of areas where interventions could support GPs to improve the interpretation and management of laboratory test results, including feedback to GPs and educational messages on test result reports. PMID- 29025126 TI - Patients' emotions: reacting is not enough. PMID- 29025128 TI - Opioid Therapy for Chronic Pain: Overview of the 2017 US Department of Veterans Affairs and US Department of Defense Clinical Practice Guideline. AB - Description: The US Department of Veterans Affairs (VA) and US Department of Defense (DoD) revised the 2010 clinical practice guideline (CPG) for the management of opioid therapy for chronic pain, considering the specific needs of the VA and DoD and new evidence regarding prescribing opioid medication for non end-of-life-related chronic pain. This paper summarizes the major recommendations and compares them with the US Centers for Disease Control and Prevention (CDC) guideline for prescribing opioids. Patient Population: This Opioid Therapy CPG was developed for VA-DoD service members, veterans, and their families. Methods: The VA/DoD Evidence-Based Practice Work Group convened a VA/DoD guideline renewal development effort and conformed to the guidelines established by the VA/DoD Joint Executive Council (JEC) and VA/DoD Health Executive Council (HEC). The panel developed questions, searched and evaluated the literature, developed recommendations using GRADE methodology, and developed algorithms. Passage of the CARA Act by Congress compelled consideration and comparison with the CDC opioid therapy guideline mid-development. Results: There were 18 recommendations made. This article focuses on guideline development and key recommendations with CDC comparisons taken from four major areas, including: initiation and continuation of opioids;type, dose, follow-up, and taper of opioids;risk mitigation;acute pain. Conclusions: Guideline development and recommendations are presented. There was substantial overlap with the CDC opioid guideline. Additionally, there were items particularly relevant to the VA-DoD, including risk mitigation, suicide prevention, and preventing opioid use disorder in young patients. Our guideline highlights avoiding opioid therapy longer than 90 days as a critical juncture. PMID- 29025127 TI - Are participants concerned about privacy and security when using short message service to report product adherence in a rectal microbicide trial? AB - Objective: During a Phase 2 rectal microbicide trial, men who have sex with men and transgender women (n = 187) in 4 countries (Peru, South Africa, Thailand, United States) reported product use daily via short message service (SMS). To prevent disclosure of study participation, the SMS system program included privacy and security features. We evaluated participants' perceptions of privacy while using the system and acceptability of privacy/security features. Materials and Methods: To protect privacy, the SMS system: (1) confirmed participant availability before sending the study questions, (2) required a password, and (3) did not reveal product name or study participation. To ensure security, the system reminded participants to lock phone/delete messages. A computer-assisted self-interview (CASI), administered at the final visit, measured burden of privacy and security features and SMS privacy concerns. A subsample of 33 participants underwent an in-depth interview (IDI). Results: Based on CASI, 85% had no privacy concerns; only 5% were very concerned. Most were not bothered by the need for a password (73%) or instructions to delete messages (82%). Based on IDI, reasons for low privacy concerns included sending SMS in private or feeling that texting would not draw attention. A few IDI participants found the password unnecessary and more than half did not delete messages. Discussion: Most participants were not concerned that the SMS system would compromise their confidentiality. SMS privacy and security features were effective and not burdensome. Conclusion: Short ID-related passwords, ambiguous language, and reminders to implement privacy and security-enhancing behaviors are recommended for SMS systems. PMID- 29025129 TI - Perspective: Filling the Educational Void. PMID- 29025130 TI - Domain-specific physical activity and sedentary behaviour in relation to colon and rectal cancer risk: a systematic review and meta-analysis. AB - Background: Physical activity is associated with reduced risk of colorectal cancer, but most epidemiological studies have focused on occupational and recreational physical activity. The evidence for other domains of activity, and for sedentary behaviour, is limited. Methods: Medline, Embase and Web of Science were searched from inception to December 2015 for studies examining domain specific physical activity or sedentary behaviour and the risk of colon and/or rectal cancer. We extracted maximally adjusted relative risks (RRs) except when RRs not adjusted for body mass index, were also presented. We used random-effects meta-analysis to compute pooled RRs comparing the highest versus the lowest level of exposure. We used meta-regression to assess sources of heterogeneity in estimates. Results: We identified 17 cohort and 21 case-control studies, of which 17 had occupational data, 23 had recreational data, three each had data on transport and household physical activity domains, and 6 studies had data on occupational sedentary behaviour. The pooled relative risks (RRs) for colon cancer were 0.74 (95% confidence interval (CI): 0.67, 0.82) for occupational activity, 0.80 (95% CI: 0.71, 0.89) for recreational activity, 0.66 (95% CI: 0.45, 0.98) for transport-related physical activity, 0.85 (95% CI: 0.71, 1.02) for household physical activity, and 1.44 (95% CI: 1.28, 1.62) for occupational sedentary behaviour. For rectal cancer, the pooled RRs were 0.88 (95% CI: 0.79, 0.98) for occupational activity, 0.87 (95% CI: 0.75, 1.01) for recreational activity, 0.88 (95% CI: 0.70, 1.12) for transport-related physical activity, 1.01 (95% CI: 0.80, 1.27) for household physical activity, and 1.02 (95% CI: 0.82, 1.28) for occupational sedentary behaviour. Conclusions: In addition to increasing occupational and recreational physical activity, promoting physical activity during transport and reducing sedentary behaviour in the workplace may also be useful colorectal cancer prevention strategies. PMID- 29025131 TI - A guide to evaluating linkage quality for the analysis of linked data. AB - Linked datasets are an important resource for epidemiological and clinical studies, but linkage error can lead to biased results. For data security reasons, linkage of personal identifiers is often performed by a third party, making it difficult for researchers to assess the quality of the linked dataset in the context of specific research questions. This is compounded by a lack of guidance on how to determine the potential impact of linkage error. We describe how linkage quality can be evaluated and provide widely applicable guidance for both data providers and researchers. Using an illustrative example of a linked dataset of maternal and baby hospital records, we demonstrate three approaches for evaluating linkage quality: applying the linkage algorithm to a subset of gold standard data to quantify linkage error; comparing characteristics of linked and unlinked data to identify potential sources of bias; and evaluating the sensitivity of results to changes in the linkage procedure. These approaches can inform our understanding of the potential impact of linkage error and provide an opportunity to select the most appropriate linkage procedure for a specific analysis. Evaluating linkage quality in this way will improve the quality and transparency of epidemiological and clinical research using linked data. PMID- 29025133 TI - Offspring risk of obesity in childhood, adolescence and adulthood in relation to gestational diabetes mellitus: a sex-specific association. PMID- 29025132 TI - Most Relevant Neuropathic Pain Treatment and Chronic Low Back Pain Management Guidelines: A Change Pain Latin America Advisory Panel Consensus. AB - Objective: Chronic pain conditions profoundly affect the daily living of a significant number of people and are a major economic and social burden, particularly in developing countries. The Change Pain Latin America (CPLA) advisory panel aimed to identify the most appropriate guidelines for the treatment of neuropathic pain (NP) and chronic low back pain (CLBP) for use across Latin America. Methods: Published systematic reviews or practice guidelines were identified by a systematic search of PubMed, the Guidelines Clearinghouse, and Google. Articles were screened by an independent reviewer, and potential candidate guidelines were selected for more in-depth review. A shortlist of suitable guidelines was selected and critically evaluated by the CPLA advisory panel. Results: Searches identified 674 and 604 guideline articles for NP and CLBP, respectively. Of these, 14 guidelines were shortlisted for consensus consideration, with the following final selections made: "Recommendations for the pharmacological management of neuropathic pain from the Neuropathic Pain Special Interest Group in 2015-pharmacotherapy for neuropathic pain in adults: A systematic review and meta-analysis.""Diagnosis and treatment of low back pain: A joint clinical practice guideline from the American College of Physicians and the American Pain Society" (2007). Conclusions: The selected guidelines were endorsed by all members of the CPLA advisory board as the best fit for use across Latin America. In addition, regional considerations were discussed and recorded. We have included this expert local insight and advice to enhance the implementation of each guideline across all Latin American countries. PMID- 29025135 TI - Current Perspective on the Use of Opioids in Perioperative Medicine: An Evidence Based Literature Review, National Survey of 70,000 Physicians, and Multidisciplinary Clinical Appraisal. AB - Objective: Opioids represent an important analgesic option for physicians managing acute pain in surgical patients. Opioid management is not without its drawbacks, however, and current trends suggest that opioids might be overused in the United States. An expert panel was convened to conduct a clinical appraisal regarding the use of opioids in the perioperative setting. Methods: The clinical appraisal consisted of the review, presentation, and assessment of current published evidence as it relates to the statement "Opioids are not overused in the United States, even though opioid adjunct therapy achieves greater pain control with less risk." The authors' evaluation of this statement was also compared with the results of a national survey of surgeons and anesthesiologists in the United States. Results: We report the presented literature and proceedings of the panel discussion. The national survey revealed a wide range of opinions regarding opioid overuse in the United States. Current published evidence provides support for the efficacy of opioid therapy in surgical patients; however, it is not sufficient to conclude unequivocally that opioids are-or are not-overused in the management of acute surgical pain in the United States. Conclusions: Opioids remain a key component of multimodal perioperative analgesia, and strategic opioid use based on clinical considerations and patient specific needs represents an opportunity to support improved postoperative outcomes and satisfaction. Future studies should focus on identifying optimal procedure-specific and patient-centered approaches to multimodal perioperative analgesia. PMID- 29025136 TI - Predictors of Responsivity to Interdisciplinary Pain Management. AB - Objective: This study investigated for whom interdisciplinary pain management (IPM) is most effective. Identification of predictors of treatment responsivity would facilitate development of patient-treatment matching algorithms to optimize outcomes. Design: Repeated measures prospective study of consecutive admissions to a two-week IPM program. Setting: Brisbane Pain Rehabilitation Service in Brisbane, Australia. Subjects: A total of 163 adults referred for chronic pain management. Methods: Self-report questionnaires and measures of physical performance were obtained at program entry and completion. Group-level analyses were performed using standard parametric statistics. Individual-level change was assessed using recommended criteria. Multivariate analysis of variance and logistic regression were used to examine outcomes and predictors of response. Results: Significant improvements were observed across psychological, social, and physical outcome domains. Up to 50% of participants had clinically meaningful improvements, while less than 10% deteriorated. Higher baseline depression, anxiety, stress, and pain catastrophizing scores predicted better group-level outcomes (Ps < 0.05). Participants with higher baseline depression scores were most likely to show significant individual-level improvement on at least one outcome (Ps < 0.05). Participants with nociceptive pain were more than four times more likely than those with neuropathic pain to show clinically meaningful improvement on multiple outcomes, while those participants who were older were more likely to be multidomain responders. Conclusions: Physical, psychological, and social outcomes all improved in a significant proportion of participants following the IPM. High baseline depression was a clinically reliable predictor of individual-level improvement. Individuals with nociceptive pain and those who were older, respectively, showed the largest response across multiple outcomes and domains. PMID- 29025134 TI - Cannabis Dampens the Effects of Music in Brain Regions Sensitive to Reward and Emotion. AB - Background: Despite the current shift towards permissive cannabis policies, few studies have investigated the pleasurable effects users seek. Here, we investigate the effects of cannabis on listening to music, a rewarding activity that frequently occurs in the context of recreational cannabis use. We additionally tested how these effects are influenced by cannabidiol, which may offset cannabis-related harms. Methods: Across 3 sessions, 16 cannabis users inhaled cannabis with cannabidiol, cannabis without cannabidiol, and placebo. We compared their response to music relative to control excerpts of scrambled sound during functional Magnetic Resonance Imaging within regions identified in a meta analysis of music-evoked reward and emotion. All results were False Discovery Rate corrected (P<.05). Results: Compared with placebo, cannabis without cannabidiol dampened response to music in bilateral auditory cortex (right: P=.005, left: P=.008), right hippocampus/parahippocampal gyrus (P=.025), right amygdala (P=.025), and right ventral striatum (P=.033). Across all sessions, the effects of music in this ventral striatal region correlated with pleasure ratings (P=.002) and increased functional connectivity with auditory cortex (right: P< .001, left: P< .001), supporting its involvement in music reward. Functional connectivity between right ventral striatum and auditory cortex was increased by cannabidiol (right: P=.003, left: P=.030), and cannabis with cannabidiol did not differ from placebo on any functional Magnetic Resonance Imaging measures. Both types of cannabis increased ratings of wanting to listen to music (P<.002) and enhanced sound perception (P<.001). Conclusions: Cannabis dampens the effects of music in brain regions sensitive to reward and emotion. These effects were offset by a key cannabis constituent, cannabidol. PMID- 29025137 TI - Hypoparathyroidism, Deafness & Renal Dysplasia (HDR) Syndrome & GATA3. PMID- 29025138 TI - Relative Bioavailability, Intranasal Abuse Potential, and Safety of Benzhydrocodone/Acetaminophen Compared with Hydrocodone Bitartrate/Acetaminophen in Recreational Drug Abusers. AB - Objectives: Benzhydrocodone is a hydrocodone prodrug that has been combined with acetaminophen (APAP) in a novel immediate-release analgesic. This study evaluated the relative bioavailability, intranasal abuse potential, and safety of benzhydrocodone/APAP compared with commercially available hydrocodone bitartrate (HB)/APAP. Design: Single-center, randomized, double-blind, double-dummy, two part study comprising a Dose Selection (Part A) phase and a Main Study (Part B) phase. Setting: Clinical research site. Subjects: Healthy adult, nondependent, recreational opioid users with a history of intranasal abuse. Methods: Subjects (N = 42) in Part B received five in-clinic treatments consisting of intranasal and oral benzhydrocodone/APAP (13.34/650 mg), intranasal and oral hydrocodone/APAP (15/650 mg), and placebo, with four or more days of washout between treatments. Pharmacodynamic assessments included subjective effects of Drug Liking, Overall Drug Liking, and Take Drug Again (assessed on visual analog scale [VAS]), as well as nasal irritation. Pharmacokinetics and safety were also assessed. Results: Hydrocodone Cmax was 11% lower for intranasal benzhydrocodone/APAP vs intranasal HB/APAP (P = 0.0027). Early cumulative hydrocodone exposures for intranasal benzhydrocodone/APAP through 0.5, 1, and 2 hours were reduced by approximately 50%, 29%, and 15%, respectively (P <= 0.0024). Correspondingly, Drug Liking VAS values up to two hours postdose were significantly lower for intranasal benzhydrocodone/APAP vs intranasal HB/APAP (P <= 0.0079), although peak Drug Liking VAS (Emax) scores were not different (P = 0.2814). Adverse nasal effects were more frequent for intranasal benzhydrocodone/APAP vs intranasal HB/APAP. Conclusions: Reduced hydrocodone exposure and drug liking at early time intervals, coupled with adverse nasal effects, can be expected to provide a level of deterrence to the intranasal route of abuse for benzhydrocodone/APAP. PMID- 29025139 TI - Steeple sign and acute laryngotracheobronchitis. PMID- 29025140 TI - Policies and strategies to facilitate secondary use of research data in the health sciences. PMID- 29025141 TI - How is it best to deliver care in acute medical units? A systematic review. AB - The majority of medical patients presenting to hospital in the UK are cared for in acute medical units (AMUs). Such units are also increasingly present internationally. Care delivery varies across units: this review aims to examine the evidence for how best to deliver AMU care.Six electronic databases and grey literature were searched. Inclusion criteria comprised interventions applied to undifferentiated patients in AMU settings. All studies were quality assessed. A narrative approach was undertaken.Nine studies, all conducted in the UK or Ireland, evaluated 1.3 million episodes, 3617 patients and 49 staff. There was single study evidence for beneficial effects of: enhanced pharmacy care, a dedicated occupational therapy service, an all-inclusive consultant work pattern, a rapid-access medical clinic and formalized handovers. Two studies found increased consultant presence was associated with reduced mortality; one of these studies found an association with a reduction in 28-day readmissions; and the other found an association with an increased proportion of patients discharged on the day they were admitted. Three studies provide evidence of the beneficial effects of multiple interventions developed from local service reviews.Overall, the quality of the evidence was limited. This review has identified operationally relevant evidence that increased consultant presence is associated with improved outcomes of care; has highlighted the potential to improve outcomes locally through service reviews; and has demonstrated an important knowledge gap of how best to deliver AMU care. These findings have importance given the challenges acute services currently face. PMID- 29025142 TI - Community acquired acute kidney injury: findings from a large population cohort. AB - Background: The extent of patient contact with medical services prior to development of community acquired-acute kidney injury (CA-AKI)is unknown. Aim: We examined the relationship between incident CA-AKI alerts, previous contact with hospital or primary care and clinical outcomes. Design: A prospective national cohort study of all electronic AKIalerts representing adult CA-AKI. Methods: Data were collected for all cases of adult (>=18 years of age) CA-AKI in Wales between 1 November 2013 and 31 January 2017. Results: There were a total of 50 560 incident CA-AKI alerts. In 46.8% there was a measurement of renal function in the 30 days prior to the AKI alert. In this group, in 63.8% this was in a hospital setting, of which 37.6% were as an inpatient and 37.5% in Accident and Emergency. Progression of AKI to a higher AKI stage (13.1 vs. 9.8%, P < 0.001) (or for AKI 3 an increase of > 50% from the creatinine value generating the alert), the proportion of patients admitted to Intensive Care (5.5 vs. 4.9%, P = 0.001) and 90-day mortality (27.2 vs. 18.5%, P < 0.001) was significantly higher for patients with a recent test. 90-day mortality was highest for patients with a recent test taken in an inpatient setting prior to CA-AKI (30.9%). Conclusion: Almost half of all patients presenting with CA-AKI are already known to medical services, the majority of which have had recent measurement of renal function in a hospital setting, suggesting that AKI for at least some of these may potentially be predictable and/or avoidable. PMID- 29025143 TI - Cost-effectiveness of the pharmacist-assisted warfarin monitoring program at a Medical Center in Taiwan. AB - Objective: To investigate the cost-effectiveness of the first patient self-paying pharmacist-assisted warfarin monitoring (PAWM) program in Taiwan. Design: A Markov model with a 1-month cycle length and a 20-year time horizon was employed in this study. The model is composed of the following eight states: three no event states (i.e. 'subtherapeutic,' 'within therapeutic' and 'supratherapeutic' states), two serious adverse events (AEs) (i.e. bleeding and thromboembolism), two sequelae states and death. The likelihood of events, costs and utilities were derived from local databases and literature, if applicable. This study was conducted with a payer's perspective and all costs were discounted with a rate of 3%. Setting: A pharmacist-led clinic. Participants: A hypothetical cohort of 10 000 participants. Intervention(s): PAWM versus usual care. Main outcome measure(s): Average quality-adjusted life-years (QALYs) gained and cost increments per patient, and incremental cost-effectiveness ratios (ICERs). Results: The PAWM program resulted in an average of 0.13 QALYs gained and a cost increment of NT$53 850 (US$1683) per patient. As the ICER (NT$410 749 [US$12 836]) was less than the gross domestic product per capita (NT$631 142 [US$19 723]), the PAWM was considered to be very cost-effective. The sensitivity analyses suggested that our result was robust and that the PAWM program had an 86% probability of being very cost-effective. Conclusions: Even if the costs saved from avoiding AEs were thought to be minimal due to the low-medical expenditures in Taiwan, the PAWM program was demonstrated to be economical. According to our findings, the policymakers should consider reimbursing such a service. PMID- 29025144 TI - Synthea: An approach, method, and software mechanism for generating synthetic patients and the synthetic electronic health care record. AB - Objective: Our objective is to create a source of synthetic electronic health records that is readily available; suited to industrial, innovation, research, and educational uses; and free of legal, privacy, security, and intellectual property restrictions. Materials and Methods: We developed Synthea, an open source software package that simulates the lifespans of synthetic patients, modeling the 10 most frequent reasons for primary care encounters and the 10 chronic conditions with the highest morbidity in the United States. Results: Synthea adheres to a previously developed conceptual framework, scales via open source deployment on the Internet, and may be extended with additional disease and treatment modules developed by its user community. One million synthetic patient records are now freely available online, encoded in standard formats (eg, Health Level-7 [HL7] Fast Healthcare Interoperability Resources [FHIR] and Consolidated-Clinical Document Architecture), and accessible through an HL7 FHIR application program interface. Discussion: Health care lags other industries in information technology, data exchange, and interoperability. The lack of freely distributable health records has long hindered innovation in health care. Approaches and tools are available to inexpensively generate synthetic health records at scale without accidental disclosure risk, lowering current barriers to entry for promising early-stage developments. By engaging a growing community of users, the synthetic data generated will become increasingly comprehensive, detailed, and realistic over time. Conclusion: Synthetic patients can be simulated with models of disease progression and corresponding standards of care to produce risk-free realistic synthetic health care records at scale. PMID- 29025145 TI - Online physician ratings fail to predict actual performance on measures of quality, value, and peer review. AB - Objective: Patients use online consumer ratings to identify high-performing physicians, but it is unclear if ratings are valid measures of clinical performance. We sought to determine whether online ratings of specialist physicians from 5 platforms predict quality of care, value of care, and peer assessed physician performance. Materials and Methods: We conducted an observational study of 78 physicians representing 8 medical and surgical specialties. We assessed the association of consumer ratings with specialty specific performance scores (metrics including adherence to Choosing Wisely measures, 30-day readmissions, length of stay, and adjusted cost of care), primary care physician peer-review scores, and administrator peer-review scores. Results: Across ratings platforms, multivariable models showed no significant association between mean consumer ratings and specialty-specific performance scores (beta-coefficient range, -0.04, 0.04), primary care physician scores (beta coefficient range, -0.01, 0.3), and administrator scores (beta-coefficient range, -0.2, 0.1). There was no association between ratings and score subdomains addressing quality or value-based care. Among physicians in the lowest quartile of specialty-specific performance scores, only 5%-32% had consumer ratings in the lowest quartile across platforms. Ratings were consistent across platforms; a physician's score on one platform significantly predicted his/her score on another in 5 of 10 comparisons. Discussion: Online ratings of specialist physicians do not predict objective measures of quality of care or peer assessment of clinical performance. Scores are consistent across platforms, suggesting that they jointly measure a latent construct that is unrelated to performance. Conclusion: Online consumer ratings should not be used in isolation to select physicians, given their poor association with clinical performance. PMID- 29025146 TI - An imported case of leprosy in a trainee from Indonesia to Japan. PMID- 29025147 TI - Differential diagnosis between sarcoidosis and granulomatosis with polyangiitis in a patient with leptomeningeal, cavernous sinus and pituitary lesions. PMID- 29025148 TI - Type 2 split cord malformation: the 'Martian' sign. PMID- 29025149 TI - Segment convolutional neural networks (Seg-CNNs) for classifying relations in clinical notes. AB - We propose Segment Convolutional Neural Networks (Seg-CNNs) for classifying relations from clinical notes. Seg-CNNs use only word-embedding features without manual feature engineering. Unlike typical CNN models, relations between 2 concepts are identified by simultaneously learning separate representations for text segments in a sentence: preceding, concept1, middle, concept2, and succeeding. We evaluate Seg-CNN on the i2b2/VA relation classification challenge dataset. We show that Seg-CNN achieves a state-of-the-art micro-average F-measure of 0.742 for overall evaluation, 0.686 for classifying medical problem-treatment relations, 0.820 for medical problem-test relations, and 0.702 for medical problem-medical problem relations. We demonstrate the benefits of learning segment-level representations. We show that medical domain word embeddings help improve relation classification. Seg-CNNs can be trained quickly for the i2b2/VA dataset on a graphics processing unit (GPU) platform. These results support the use of CNNs computed over segments of text for classifying medical relations, as they show state-of-the-art performance while requiring no manual feature engineering. PMID- 29025151 TI - African Americans and Heart Disease. PMID- 29025150 TI - Collection and determinants of patient reported outcome measures in haemodialysis patients in Scotland. AB - Background/Introduction: Patient reported outcome measures (PROMs) can evaluate the quality of health in patients with established renal failure. There is limited experience of their use within national renal registries. Aim: To describe the Scottish Renal Registry's (SRR) experience of collecting PROMS in the haemodialysis population and correlate PROMS to demographic and clinical parameters. Design: Retrospective observational cross-sectional study. Methods: Haemodialysis patients in Scotland were invited to complete the KDQOLTM-36 questionnaire on the day of the annual SRR census in 2015 and 2016. Questionnaires were linked to census demographic and clinical variables. Results: In 2016, 738 questionnaires were linked to census data (39% of prevalent haemodialysis population). Response rates differed with age (>= 65 years 42%, < 65 years 36%) [chi2P = 0.006]; duration of renal replacement therapy (<1 year 46%, >=1 < 5 years 38%, >= 5 years 33%) [chi2P = 0.002] and social class (Scottish Index of Multiple Deprivation (SIMD) Class 1 32%, Class 2 41%, Class 3 40%, Class 4 48%, Class 5 40%) [chi2P < 0.001]. There were significant differences in PROMs with age, SIMD quintile and primary renal diagnosis. Achieving a urea reduction ratio of >65% and dialysing through arteriovenous access were associated with significantly higher PROMs. PROMs were not affected by haemoglobin or phosphate concentration. Discussion/Conclusions: Routine collection of PROMs is feasible and can identify potentially under-recognized and treatable determinants to quality of life. The association between attaining recommended standards of care and improved PROMs is striking. Individual and population-wide strategies are required to improve PROMs. PMID- 29025152 TI - Cervical Myelopathy Secondary to Metallic Irritation of the Dura Mater Following Insertion of a Spinal Cord Stimulator in a Patient with Ossification of Posterior Longitudinal Ligament. PMID- 29025153 TI - Atypical Tietze's Syndrome Misdiagnosed as Atypical Chest Pain: Letter to the Editor. PMID- 29025154 TI - Hematological alterations in protein malnutrition. AB - Protein malnutrition is one of the most serious nutritional problems worldwide, affecting 794 million people and costing up to $3.5 trillion annually in the global economy. Protein malnutrition primarily affects children, the elderly, and hospitalized patients. Different degrees of protein deficiency lead to a broad spectrum of signs and symptoms of protein malnutrition, especially in organs in which the hematopoietic system is characterized by a high rate of protein turnover and, consequently, a high rate of protein renewal and cellular proliferation. Here, the current scientific information about protein malnutrition and its effects on the hematopoietic process is reviewed. The production of hematopoietic cells is described, with special attention given to the hematopoietic microenvironment and the development of stem cells. Advances in the study of hematopoiesis in protein malnutrition are also summarized. Studies of protein malnutrition in vitro, in animal models, and in humans demonstrate several alterations that impair hematopoiesis, such as structural changes in the extracellular matrix, the hematopoietic stem cell niche, the spleen, the thymus, and bone marrow stromal cells; changes in mesenchymal and hematopoietic stem cells; increased autophagy; G0/G1 cell-cycle arrest of progenitor hematopoietic cells; and functional alterations in leukocytes. Structural and cellular changes of the hematopoietic microenvironment in protein malnutrition contribute to bone marrow atrophy and nonestablishment of hematopoietic stem cells, resulting in impaired homeostasis and an impaired immune response. PMID- 29025155 TI - CT appearance of gold thread facelift. PMID- 29025156 TI - Risk factors associated with mortality from vascular thromboembolic events in patients diagnosed with non-small cell lung cancer: A population-based analysis. AB - Background: Lung cancer patients are at increased risk for vascular events possibly due to cancer induced hypercoagulation. Aim: The purpose of this study was to evaluate risk factors associated with the mortality from vascular thromboembolic events in patients diagnosed with non-small cell lung cancer (NSCLC). Design: Retrospective population-based analysis. Methods: We used Surveillance, Epidemiology, and End Results Program for 2004 - 2013 and evaluated 199,337 patients with NSCLC. Univariate and multivariate subdistribution hazard regression models were used to identify potential risk factors for mortality from vascular thromboembolic events. Stratification analysis against clinical stage was performed to determine if the severity of the disease influenced the identified associations. Results: Multivariate Cox regression analysis demonstrated that increased risk of mortality due to vascular thromboembolic events was associated with age, black race, non-adenocarcinoma histology, surgical treatment alone (all, p < 0.001) and north central region of SEER registry (p = 0.003). Female gender (p < 0.001), Asian or Pacific Islander race (p = 0.001), multiple co-existing primary cancers and late cancer stages (both, p < 0.001) were associated with significantly lower risk of mortality due to vascular thromboembolic events. The significant predictors of mortality from the vascular thromboembolic event were dependent on the stages of the disease. Conclusions: Risk factors associated with mortality from the vascular thromboembolic events in NSCLC patients identified in this study can promote awareness and may help to identify groups of patients that can benefit from antithrombotic prophylaxis measures. PMID- 29025157 TI - Chronic Pain After Traumatic Brain Injury: Pathophysiology and Pain Mechanisms. AB - Background: Traumatic brain injury refers to a broad range of neurological, cognitive, and emotional factors that result from the application of an external force to the head. Individuals recovering from traumatic brain injury will frequently experience acute and chronic pain. Objective: The objective of this paper is to discuss the pathophysiological changes resulting from traumatic brain injury and how these may be involved in the development and persistence of pain after injury. Methods: We based our review on articles retrieved from the MEDLINE database of references and abstracts on life sciences and biomedical topics (1966 to present) using the search engine PubMed (United States National Library of Medicine). The published literature focused on traumatic brain injury and pain. Conclusions: This review presents evidence that pain is common after traumatic brain injury. However, while there are many potential mechanisms explaining this problem such as neuroinflammation, excitotoxicity, and axonal degeneration, we have no clear understanding of which of them contribute in individual patients. The authors highlight the priorities for research that will expand our knowledge and that may lead to the rational design of therapies that both reduce pain and provide optimal overall outcomes after traumatic brain injury. PMID- 29025158 TI - Cluster randomized trials with a small number of clusters: which analyses should be used? AB - Background: Cluster randomized trials (CRTs) are increasingly used to assess the effectiveness of health interventions. Three main analysis approaches are: cluster-level analyses, mixed-models and generalized estimating equations (GEEs). Mixed models and GEEs can lead to inflated type I error rates with a small number of clusters, and numerous small-sample corrections have been proposed to circumvent this problem. However, the impact of these methods on power is still unclear. Methods: We performed a simulation study to assess the performance of 12 analysis approaches for CRTs with a continuous outcome and 40 or fewer clusters. These included weighted and unweighted cluster-level analyses, mixed-effects models with different degree-of-freedom corrections, and GEEs with and without a small-sample correction. We assessed these approaches across different values of the intraclass correlation coefficient (ICC), numbers of clusters and variability in cluster sizes. Results: Unweighted and variance-weighted cluster-level analysis, mixed models with degree-of-freedom corrections, and GEE with a small sample correction all maintained the type I error rate at or below 5% across most scenarios, whereas uncorrected approaches lead to inflated type I error rates. However, these analyses had low power (below 50% in some scenarios) when fewer than 20 clusters were randomized, with none reaching the expected 80% power. Conclusions: Small-sample corrections or variance-weighted cluster-level analyses are recommended for the analysis of continuous outcomes in CRTs with a small number of clusters. The use of these corrections should be incorporated into the sample size calculation to prevent studies from being underpowered. PMID- 29025159 TI - IgG4-related disease and ANCA positivity: an overlap syndrome? PMID- 29025160 TI - A corollary to the prudent approach to anticoagulation. PMID- 29025161 TI - Generalized finger clubbing reveals the cause of secondary gout. PMID- 29025162 TI - Complications of obesity. AB - Global obesity rates have increased exponentially in recent decades. People are becoming obese younger, morbid obesity is increasing and the full health implications are only beginning to be seen. This article discusses the latest epidemiological data on obesity in adults and children, and systemically reviews the complications associated with the condition. PMID- 29025164 TI - Shiitake dermatitis. PMID- 29025163 TI - Alcohol consumption in 0.5 million people from 10 diverse regions of China: prevalence, patterns and socio-demographic and health-related correlates. PMID- 29025165 TI - Impact of an emergency department electronic sepsis surveillance system on patient mortality and length of stay. AB - Objective: The purpose of this study was to determine whether an electronic health record-based sepsis alert system could improve quality of care and clinical outcomes for patients with sepsis. Materials and Methods: We performed a patient-level interrupted time series study of emergency department patients with severe sepsis or septic shock between January 2013 and April 2015. The intervention, introduced in February 2014, was a system of interruptive sepsis alerts triggered by abnormal vital signs or laboratory results. Primary outcomes were length of stay (LOS) and in-hospital mortality; other outcomes included time to first lactate and blood cultures prior to antibiotics. We also assessed sensitivity, positive predictive value (PPV), and clinician response to the alerts. Results: Mean LOS for patients with sepsis decreased from 10.1 to 8.6 days (P < .001) following alert introduction. In adjusted time series analysis, the intervention was associated with a decreased LOS of 16% (95% CI, 5%-25%; P = .007, with significance of alpha = 0.006) and no change thereafter (0%; 95% CI, 2%, 2%). The sepsis alert system had no effect on mortality or other clinical or process measures. The intervention had a sensitivity of 80.4% and a PPV of 14.6%. Discussion: Alerting based on simple laboratory and vital sign criteria was insufficient to improve sepsis outcomes. Alert fatigue due to the low PPV is likely the primary contributor to these results. Conclusion: A more sophisticated algorithm for sepsis identification is needed to improve outcomes. PMID- 29025166 TI - Is Alzheimer's Disease Associated with Previous Opioid Use? AB - Objective: We investigated whether opioid use, duration of use, and cumulative dose are associated with an increased risk of Alzheimer's disease (AD). Methods: A Finnish nationwide nested case-control study, MEDALZ, included 70,718 individuals with AD and up to four age-, sex-, and region of residence-matched comparison individuals. The cohort included all Finnish persons with a clinically verified AD diagnosis during 2005 to 2011; the mean age was 80 years (SD = 7 years), and 65% were women. Register-based data on opioid purchases (excluding codeine) were modeled into drug use periods using the PRE2DUP method. Cumulative opioid doses were transformed to total standardized doses (TSDs). We utilized a three-year time window between exposure (opioid use) and outcome (AD) to avoid reverse causality. Analyses were adjusted for comorbid conditions and drug use. Results: Opioid use was not associated with an increased risk of AD (adjusted odds ratio [OR] = 1.00, 95% confidence interval [CI] = 0.98-1.03). Neither longer duration of use (cumulative use for >365 days: adjusted OR = 1.02, 95% CI = 0.96 1.08) nor high cumulative doses (>90 TSDs: adjusted OR = 1.02, 95% CI = 0.98 1.07) of opioids was associated with risk of AD. Conclusions: Although opioid use was not associated with an increased risk of AD, further studies should be performed to assess the safety of long-term opioid use in terms of other cognitive effects. PMID- 29025167 TI - Vitamin B 12 deficiency may coexist with endocrine causes of hyperpigmentation. PMID- 29025168 TI - [A Model Explaining Infantile Esotropia: Dissociated Strabismus as a Result of Sensory Interhemispheric Dissociation and Crossed Dominance in the Brainstem]. AB - Over 150 million years, modern reptiles, birds and mammals evolved. Predatory birds and mammals have eyes on the front of their heads. In these animals, binocular correspondence, voluntary eye movements, eye-hand coordination, partial decussation at the optic chiasm and cortical interhemispheric pathways could develop at the cost of a smaller visual field. The subsequent enlargement of the cerebral neocortex and the hemispheric pathways are of central importance in binocular vision, sensory fusion and infantile strabismus. To investigate visual interhemispheric fibers, tractography was used in subjects with infantile esotropia (IE), callosal agenesis and control subjects with normal binocularity. In human callosal agenesis, normal binocularity could be explained by a different interhemispheric connection. In subjects with infantile esotropia, the analyses starting from the primary visual area on one side appeared different from the analysis from the other side. The distribution areas are asymmetrical between sides. Binocularity and alignment not only rely on correspondence between crossed and uncrossed hemi-representations but, in addition the corpus callosum, the most important interhemispheric pathway in placental mammals, seems important in the development of human binocularity. When correspondence is possible between the hemi-representations of the crossed and the uncrossed pathway on both sides of the cortex, the uncrossed pathway finds its way via the corpus callosum toward the contralateral hemi-representation of the same eye. A vertical midline must come out of this process. Meanwhile, however, the other uncrossed pathway strives to find the vertical midline of the other eye. Likely, the corpus callosum is important during the tuning of the pathways involved in sensory fusion. The anterior commissure might be an alternative in callosal agenesis. A failure in the offset will result in strabismus and crossed dominance after V1. Consequently, the normal binocular development of the brainstem (i.e., the superior colliculus), will not take place and latent nystagmus, as well as dissociated divergence, may ensue. PMID- 29025169 TI - [Acute Bilateral Abducens Nerve Palsy in a 7-Year-Old Boy - Atypical Miller Fisher Syndrome]. PMID- 29025170 TI - [The Motor Development of Children with Infantile Esotropia]. AB - Background Until now, many studies have investigated the link between motor development and visual-spatial abilities in infancy and childhood. Most of these studies found evidence that there is such a link in typically developing children or children with locomotor delay. Only a few studies have tested the consequences of this link in children with abnormal visual development because of infantile esotropia. Moreover, little is known about the effects of late surgery on motor development. Patients and Methods We assessed the motor abilities of 3- to 7-year old children with severe deficits in stereopsis due to infantile esotropia (angle >= 12 degrees ) and typically developing children prior to and 12 to 16 months after surgery. We used the Movement Assessment Battery for Children (Movement ABC 2). Results Prior to and one year after surgery, the strabismic children showed significantly lower global motor scores than normal children. Moreover, in the strabismic children, we found significant differences relative to the healthy children in the subscales assessing manual dexterity and balance prior to and significant differences in the subscales assessing manual dexterity and ball skills after surgery. Overall, the strabismic group did not demonstrate improvements in motor development after surgery. However, the children with a positive Bagolini striated glass test following surgery performed better in the subscale assessing balance than children with a negative Bagolini striated glass test. Conclusions Motor skills were poorer in children with infantile esotropia, both prior to and following surgery. Moreover, the children with improved binocular vision after surgery demonstrated better balance skills. Possible explanations and practical implications are discussed. PMID- 29025171 TI - [The Impact of Macular Development on Full-field and Multifocal ERG in Extremely Preterm-born Children with and without Acute Retinopathy of Prematurity]. AB - Introduction Retinal development is a complex process that can continue into early childhood and beyond. Prematurity can affect the maturation of the central retina, characterised by a flatter foveal pit and overlying inner retinal layers (IRL), leading to a disturbed ratio of outer retinal layers to IRL ("macular developmental arrest": MDA) and functional impairment (Bowl et al. 2016 18). The purpose of this study was to correlate functional results by electrophysiology with the morphological appearance of the fovea in children with spontaneously regressed and without ROP and term-born age-matched controls. Methods We investigated n = 60 preterm-born children with spontaneously regressed (srROP, n = 15) and without ROP (noROP, n = 50) as part of an extensive prospective cohort study and compared them to n = 10 term-born age-matched controls (Term). Full field electroretinogram (ffERG) and multifocal ERG (mfERG) based on ISCEV standards were performed in every child for functional evaluation. Foveal morphology was evaluated with optical coherence tomography (SD-OCT, Spectralis, Heidelberg Engineering, Germany). Results Analysis of the scotopic ffERG showed significantly modified b-wave amplitudes in srROP and noROP, especially when MDA was found on SD-OCT. The mfERG exhibited a modified P1-component of the central hexagon and the second concentric ring in children with MDA. No other parameters were significantly changed. Conclusions Electrophysiological changes can be found in extremely preterm-born children, especially with OCT-confirmed foveal maturation impairment (MDA), namely in children with spontaneously regressed ROP as well as in children without ROP. The reduced b-wave in the scotopic ffERG and the reduced P1-component in the mfERG indicate involvement of bipolar cells in extremely prematurely born children with MDA. In particular, the correlation of MDA with ffERG could be a sign of more global retinal maturation disturbance accompanying MDA, and this is seen even without acute ROP. PMID- 29025172 TI - [Anti-Myelin Oligodendrocyte Glycoprotein Antibodies in Paediatric Patients with Optic Neuritis]. AB - Background Myelin oligodendrocyte glycoprotein (MOG) is located on the surface of oligodendrocytes and myelin in the central nervous system. MOG-IgG is associated with acute disseminated encephalomyelitis (ADEM), relapsing and bilateral optic neuritis (NNO), and transverse myelitis (TM) in both paediatric and adult patients. The combination of NNO and TM or other inflammatory brain lesions is a typical feature of neuromyelitis optica spectrum disorders (NMO-SD) which are associated with specific pathogenic autoantibodies against the water channel aquaporin-4 (AQP4-IgG). However, children with NMO-SD are often seronegative for AQP4-IgG but seropositive for MOG-IgG. Therefore, the course and therapy of MOG IgG positive NNO in children were of special interest. Patients The course of disease of two male patients with acute NNO is presented (bilateral NNO, age of onset 8 years each, AQP4-IgG negative, MOG-IgG positive). Several relapses of NNO occurred in patient 1 with persisting MOG-IgG in spite of immunsuppressive therapy. He suffered from increasing optic atrophy, considerable visual loss and transient brainstem affection. Patient 2 showed a monophasic course of disease with a rapid decline in MOG-IgG titre and only minor asymmetric optic atrophy. Conclusions MOG-IgG in children is associated with recurrent NNO and cerebral lesions characteristic of ADEM or NMO-SD. High titres of MOG-IgG are observed during the acute phase of clinical symptoms. Relapses of NNO lead to increasing loss of retinal nerve fibre layer. Diagnostic investigation includes the determination of AQP4-IgG and MOG-IgG as well as magnetic resonance imaging (MRI) of brain and spinal cord. The therapeutic consequence of this is consistent immunsuppressive treatment, starting with intravenous steroids and followed by second-line therapy with steroid sparing immunosuppressants, including mycophenolate or azathioprine, followed in refractory cases by rituximab. The therapeutic effect should be controlled by laboratory tests of MOG-IgG titre. PMID- 29025173 TI - [Impact of Near Addition on the Optical Quality of Diffractive Multifocal Intraocular Lenses - a Laboratory Study Using an Optical Bench]. AB - Purpose To analyse the optical quality of diffractive multifocal intraocular lenses (IOLs) with different near additions in a laboratory study. Methods We analysed the AcrySof(r) IQ ReSTOR(r) + 2.5 D SV25T0 (Alcon Laboratories inc., Fort Worth, USA), the AcrySof(r) IQ ReSTOR(r) + 3.0 D SN6AD1 (Alcon, USA) and the TECNIS(r) ZMA00 and ZMB00 (Abbott Medical Optics, USA) with a power of 21D for the distance, using the OptiSpheric(r) IOL PRO optical bench (TRIOPTICS, Wedel, Germany). The lenses have a similar optical design but different near additions: The ReSTOR + 2.5 D has a near addition of + 2.5 D, the ReSTOR + 3.0 D has a near addition of + 3.0 D and both TECNIS IOLs have a near addition of + 4.0 D. We evaluated the modulation transfer function area (MTFA) and the Strehl ratio. Additionally the optical qualities of the IOL were compared using USAF (United States Air Force)-Target pictures. Results The MTFA at the far focus (ReSTOR + 2.5 D/ReSTOR + 3.0 D/TECNIS) was 47.85/42.06/33.57. The MTFA was 11.05/9.54/8.60 for intermediate distances. MTFA at the near focus was 20.11/29.50/33.39. The Strehl ratio was 0.48/0.42/0.29 at the far focus, 0.11/0.10/0.09 at the intermediate focus and 0.20/0.30/0.34 at the near focus. The USAF Target pictures correlated with these measurements. Conclusion At the near focus, the TECNIS ZMA00 and ZMB00 performed the best, while the ReSTOR + 2.5 D performed the worst. At the intermediate distance, all IOLs achieved similar results. At the far focus, the ReSTOR + 2.5 D performed the best. Surgeons can choose the right IOL for the patients' individual needs, because a broad range of near additions in diffractive multifocal IOLs is available these days. PMID- 29025174 TI - [Change in Therapy of Neovascular Age-Related Macular Degeneration, Diabetic Maculopathy and Macular Edema after Retinal Vein Occlusion]. AB - Background Therapy of neovascular age-related macular degeneration, diabetic maculopathy and macular edema after retinal vein occlusion has changed fundamentally since the introduction of anti-VEGF therapy more than 10 years ago. With the technological progress in ocular coherence tomography (OCT) functional criteria have been replaced by more morphological criteria. Contract law and administrative problems have been improved but not solved totally. Patients/Materials and Methods In a retrospective study, 207 eyes of 157 patients who presented between January 2007 and October 2013 with neovascular age-related macular degeneration, diabetic maculopathy or macular edema after retinal vein occlusion were analyzed. Baseline visual acuity (VA) was 0.25 (median). Results After initial anti-VEGF upload, there was a significant increase in VA from 0.25 to 0.32 (p < 0.001). Patients with bad VA profited most (p = 0.004). Patients with more intravitreal injections had a larger increase in VA (p = 0.002). In the mainly VA-controlled group of the first years, VA decreased to 0.05 after one year and 3.49 intravitreal injections in the mean. In the OCT-controlled group of the later years, the initial increase in VA could be held after one year and 5.03 intravitreal anti-VEGF applications in the mean. There was a significant difference in the course of VA between the two groups (p = 0.001). Mean interval between indication and start of therapy was 25.34 days in the early years, and 5.40 days in the later years. Conclusion Mainly VA-based criteria in the anti VEGF therapy of the early years seem to be inferior to morphological criteria of the later years. Contract law and administrative problems have delayed the time between indication and start of therapy and, thereby, contributed to undersupply and worsening functional results. PMID- 29025175 TI - [Multifocal Electroretinography in Patients with Poppers Maculopathy]. AB - Background Maculopathy is a potential side effect of amyl nitrite or "poppers" abuse. It is characterized by a sudden, painless decrease in visual acuity. While the funduscopic changes are subtle, optical coherence tomography shows alterations of the outer retinal layers in the fovea. However, the extent of retinal dysfunction remains poorly understood. Materials/Methods We compared the multifocal electroretinogram of 6 patients with poppers maculopathy to that of a control group consisting of 6 healthy subjects. Response densities and implicit times of N1 and P1 were analyzed. Results Response densities and implicit times of both N1 and P1 were lower in the patients with poppers maculopathy than in the control group, particularly in ring 1 and rings 4 and 5. The only statistically significant finding, however, was a reduced N1 response density of one hexagon in the patient group. No significant differences were found considering the sum response or the averaged rings 1 to 5. Conclusion Compared to a healthy control group, the multifocal electroretinogram of patients with poppers maculopathy shows no relevant impairment. This contrasts the marked effect of the disease on visual acuity. In clinical practice, poppers maculopathy cannot be diagnosed by multifocal electroretinography. PMID- 29025176 TI - [Real-life Evidence on Treatment Outcomes of Neovascular Age-related Macular Degeneration in Germany]. AB - Treatment of neovascular age-related macular degeneration (AMD) with anti vascular endothelial growth factor agents has been improved since its introduction in Germany. Several observational studies have demonstrated an increased frequency of injections in parallel with improved visual outcomes during the first year of treatment over the last 7 years. These results are reflected in several case series. However, studies with a longer follow-up reported that visual function regressed to baseline vision following an initial improvement, e.g. during the first three years of treatment. A delay in treatment initiation has been reported mainly for rural areas and management models involving more than one ophthalmologist or institution. Encouragingly, recent data confirm a positive trend towards reducing treatment delay, increasing injection frequency and improving treatment outcomes. Still, further improvements are needed to attain optimal treatment outcomes achievable under routine clinical conditions in Germany. PMID- 29025177 TI - [The recommendations of the S2k guideline for the diagnosis, therapy and metaphylaxis of urolithiasis provide a safe course of action for ureterorenoscopic stone treatment - results of the BUSTER study]. AB - BACKGROUND: Given the high incidence, prevalence and rate of recurrence, urolithiasis stone treatment at a high stone-free rate should have a low complication rate. The German S2k guideline (GS2k-GL) for the diagnostic testing, therapy and metaphylaxis of urolithiasis provides recommendations for the first and second choice for stone treatment, depending on stone location and size. Ureterorenoscopy (URS) is the treatment of first choice for most stones. URS is only the second option for renal stones > 20 mm and proximal ureteric stones <= 10 mm. The objective was to examine the impact of using URS as the stone treatment of first or second choice on the endpoints stone-free rate and severity of complications. PATIENTS/METHODS: The multicentric prospective observational study "Evaluation of ureteroroscopic stone treatment - results with regard to complications, quality of life and the stone-free rate" (BUSTER) standardised recorded perioperative data from 307 patients who had undergone ureterorenoscopic stone treatment from January to April 2015 at 14 German urological clinics. Treatment decisions were not affected by the study protocol. RESULTS: In the univariate analysis, the stone-free rate for ureteric stones was significantly higher when URS was the treatment of first choice (OR 2.21, 95 % CI 1.11 - 4.40, p = 0.027). After adjustment for age, BMI, ASA score, preoperative ureteral stenting, stone location and size, presence of multiple stones, experience of the surgeon, acute or elective URS and operating time, the application of URS as treatment of first choice had no significant effect on the stone-free rate (OR 2.048, 95 % CI 0.890 - 4.710, p = 0.092). After adjustment for stone location and size as well as ureteral stenting following URS, the application of URS as treatment of first choice had no significant influence on the severity of complications (OR 1.019, 95 % CI 0.347 to 2.993; p = 0.973). CONCLUSION: On the basis of our data, URS proved to be a safe and effective stone treatment procedure regardless of the degree of guideline conformity. Although the stone free rate was higher with URS as treatment of first choice, the results of URS as treatment of second choice were not significantly worse. The recommendations of the GS2k-GL offer a safe guide for ureterorenoscopic stone treatment. The tendency for higher stone-free rates in URS as a treatment of first choice should be examined in further studies. PMID- 29025178 TI - [Reconstructive urethral surgery]. AB - Urethral strictures are independent of a patient's age and can happen in every life period. They are often iatrogenic, resulting from a transurethral surgical procedure or traumatic catheterisation. Endoscopic slotting is the surgery of choice; although this method is frequently associated with recurrence. Retrograde urethrography or cystourethrography continue to play a central role in diagnostic evaluation and treatment. There is no standardised procedure regarding the surgical technique, perioperative management, and postoperative follow-up. Evidence-based recommendations or guidelines do not exist. For a successful surgical treatment of the urethra it is important to have an excellent knowledge of the urethral and urogenital anatomy. The permanent removal of urethral strictures can only be achieved by open reconstructive surgery. Direct end-to-end urethroplasty is used, in general, for short bulbar urethral strictures, while urethroplasty with oral mucosa is used for longer bulbar and penile strictures. Urethral reconstruction using a patient-specific autologous cell transplant with MukoCell(r) is an alternative to the conventional transplantation with native oral mucosa. Urethral reconstruction should be performed in specialised centres with appropriate expertise. PMID- 29025179 TI - Hip Imaging. PMID- 29025180 TI - Intra-articular Lesions: Imaging and Surgical Correlation. PMID- 29025182 TI - Update on Femoroacetabular Impingement: What Is New, and How Should We Assess It? PMID- 29025181 TI - Hip Imaging: Normal Variants and Asymptomatic Findings. PMID- 29025183 TI - Postoperative Imaging after Impingement Surgery. PMID- 29025184 TI - Greater Trochanteric Pain Syndrome: Abductors, External Rotators. PMID- 29025185 TI - Current Concepts in Extra-articular Impingement of the Hip: Clinical Diagnosis, Imaging, and Treatment. PMID- 29025186 TI - Update on Pediatric Hip Imaging. PMID- 29025187 TI - Ultrasound of the Hip Joint, Soft Tissues, and Nerves. PMID- 29025188 TI - Inflammatory Conditions of the Hip. PMID- 29025189 TI - Leaps in Technology: Advanced MR Imaging after Total Hip Arthroplasty. PMID- 29025190 TI - Advanced MR Imaging after Total Hip Arthroplasty: The Clinical Impact. PMID- 29025191 TI - ESSR Consensus Document for Detection, Characterization, and Referral Pathway for Tumors and Tumorlike Lesions of Bone. PMID- 29025192 TI - Erratum: Advanced MRI Techniques for Muscle Imaging. PMID- 29025193 TI - Erratum: Emergency and Trauma of the Elbow. PMID- 29025195 TI - Chromosomal and subchromosomal anomalies associated to small for gestational age fetuses with no additional structural anomalies. AB - OBJECTIVES: To assess the chromosomal and subchromosomal anomalies in small for gestational age (SGA) fetuses with no additional structural anomalies and their clinical outcomes. METHODS: This study retrospectively reviewed the 128 SGA fetuses with no additional anomalies and underwent genetic testing with karyotyping and chromosomal microarray analysis (CMA). Stratified analysis was performed according to the existence of maternal risk factors for SGA (yes or no), gestational age at onset (before or after 32 weeks), presence of oligohydraminos (yes or no), and umbilical artery Doppler flow (normal or abnormal). RESULTS: Chromosomal anomalies were identified in 6 (4.7%) SGA fetuses and pathogenic subchromosomal anomalies in 4 (3.1%) by microarray analysis. Chromosomal and subchromosomal anomalies were more frequently observed in cases with oligohydraminos (P = .017) and with early-onset SGA (P = .042). No differences were observed in relation to the existence of maternal risk factors and abnormal umbilical artery Doppler flow. Overall survival rate was 75.0% with different rates in the early and the late onset group (P < .001). CONCLUSIONS: There is a 3.3% incremental yield of subchromosomal anomalies in CMA above karyotyping in SGA fetuses. Chromosomal microarray analysis is recommended in SGA fetuses with no additional structural anomalies, especially coexisting with oligohydraminos and being early onset. PMID- 29025194 TI - Procalcitonin to initiate or discontinue antibiotics in acute respiratory tract infections. AB - BACKGROUND: Acute respiratory infections (ARIs) comprise of a large and heterogeneous group of infections including bacterial, viral, and other aetiologies. In recent years, procalcitonin (PCT), a blood marker for bacterial infections, has emerged as a promising tool to improve decisions about antibiotic therapy (PCT-guided antibiotic therapy). Several randomised controlled trials (RCTs) have demonstrated the feasibility of using procalcitonin for starting and stopping antibiotics in different patient populations with ARIs and different settings ranging from primary care settings to emergency departments, hospital wards, and intensive care units. However, the effect of using procalcitonin on clinical outcomes is unclear. This is an update of a Cochrane review and individual participant data meta-analysis first published in 2012 designed to look at the safety of PCT-guided antibiotic stewardship. OBJECTIVES: The aim of this systematic review based on individual participant data was to assess the safety and efficacy of using procalcitonin for starting or stopping antibiotics over a large range of patients with varying severity of ARIs and from different clinical settings. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL), which contains the Cochrane Acute Respiratory Infections Group's Specialised Register, MEDLINE, and Embase, in February 2017, to identify suitable trials. We also searched ClinicalTrials.gov to identify ongoing trials in April 2017. SELECTION CRITERIA: We included RCTs of adult participants with ARIs who received an antibiotic treatment either based on a procalcitonin algorithm (PCT-guided antibiotic stewardship algorithm) or usual care. We excluded trials if they focused exclusively on children or used procalcitonin for a purpose other than to guide initiation and duration of antibiotic treatment. DATA COLLECTION AND ANALYSIS: Two teams of review authors independently evaluated the methodology and extracted data from primary studies. The primary endpoints were all-cause mortality and treatment failure at 30 days, for which definitions were harmonised among trials. Secondary endpoints were antibiotic use, antibiotic-related side effects, and length of hospital stay. We calculated odds ratios (ORs) and 95% confidence intervals (CIs) using multivariable hierarchical logistic regression adjusted for age, gender, and clinical diagnosis using a fixed-effect model. The different trials were added as random-effects into the model. We conducted sensitivity analyses stratified by clinical setting and type of ARI. We also performed an aggregate data meta analysis. MAIN RESULTS: From 32 eligible RCTs including 18 new trials for this 2017 update, we obtained individual participant data from 26 trials including 6708 participants, which we included in the main individual participant data meta analysis. We did not obtain individual participant data for four trials, and two trials did not include people with confirmed ARIs. According to GRADE, the quality of the evidence was high for the outcomes mortality and antibiotic exposure, and quality was moderate for the outcomes treatment failure and antibiotic-related side effects.Primary endpoints: there were 286 deaths in 3336 procalcitonin-guided participants (8.6%) compared to 336 in 3372 controls (10.0%), resulting in a significantly lower mortality associated with procalcitonin-guided therapy (adjusted OR 0.83, 95% CI 0.70 to 0.99, P = 0.037). We could not estimate mortality in primary care trials because only one death was reported in a control group participant. Treatment failure was not significantly lower in procalcitonin-guided participants (23.0% versus 24.9% in the control group, adjusted OR 0.90, 95% CI 0.80 to 1.01, P = 0.068). Results were similar among subgroups by clinical setting and type of respiratory infection, with no evidence for effect modification (P for interaction > 0.05). Secondary endpoints: procalcitonin guidance was associated with a 2.4-day reduction in antibiotic exposure (5.7 versus 8.1 days, 95% CI -2.71 to -2.15, P < 0.001) and lower risk of antibiotic-related side effects (16.3% versus 22.1%, adjusted OR 0.68, 95% CI 0.57 to 0.82, P < 0.001). Length of hospital stay and intensive care unit stay were similar in both groups. A sensitivity aggregate-data analysis based on all 32 eligible trials showed similar results. AUTHORS' CONCLUSIONS: This updated meta-analysis of individual participant data from 12 countries shows that the use of procalcitonin to guide initiation and duration of antibiotic treatment results in lower risks of mortality, lower antibiotic consumption, and lower risk for antibiotic-related side effects. Results were similar for different clinical settings and types of ARIs, thus supporting the use of procalcitonin in the context of antibiotic stewardship in people with ARIs. Future high-quality research is needed to confirm the results in immunosuppressed patients and patients with non-respiratory infections. PMID- 29025196 TI - Prenatal molecular diagnosis in RASA1-related disease. AB - RASA1-related disease is a rare autosomal dominant disease characterized by capillary malformations, arteriovenous malformations (AVMs), and/or arteriovenous fistulas (AFVs). Penetrance is nearly complete and vascular malformations may cause serious complications such as organ injury due to oxygenation disorder, brain abscess, hemorrhage, and stroke. Early diagnosis is useful in order to discuss optimal management, including AVMs/AVFs embolization or surgical procedures, and try to prevent some of the complications. In this context, molecular testing of RASA1 gene mutation in relatives may help to better manage the family. All arteriovenous malformations are however not accessible to such procedures. In addition, these therapeutic procedures may result in potential side effects and complications. A couple was referred to our genetics unit and asked us for prenatal genetic testing about a RASA1 mutation. Here, we discuss about arguments that led our team to accept prenatal testing. To the best of our knowledge, no molecular prenatal diagnosis was reported until now in RASA1 related diseases. This first report of prenatal diagnosis in RASA1-related diseases may also offer perspectives for a more general discussion in the field of inherited arteriovenous malformations. PMID- 29025197 TI - Adenosine versus intravenous calcium channel antagonists for supraventricular tachycardia. AB - BACKGROUND: People with supraventricular tachycardia (SVT) frequently are symptomatic and present to the emergency department for treatment. Although vagal manoeuvres may terminate SVT, they often fail, and subsequently adenosine or calcium channel antagonists (CCAs) are administered. Both are known to be effective, but both have a significant side effect profile. This is an update of a Cochrane review previously published in 2006. OBJECTIVES: To review all randomised controlled trials (RCTs) that compare effects of adenosine versus CCAs in terminating SVT. SEARCH METHODS: We identified studies by searching CENTRAL, MEDLINE, Embase, and two trial registers in July 2017. We checked bibliographies of identified studies and applied no language restrictions. SELECTION CRITERIA: We planned to include all RCTs that compare adenosine versus a CCA for patients of any age presenting with SVT. DATA COLLECTION AND ANALYSIS: We used standard methodological procedures as expected by Cochrane. Two review authors independently checked results of searches to identify relevant studies and resolved differences by discussion with a third review author. At least two review authors independently assessed each included study and extracted study data. We entered extracted data into Review Manager 5. Primary outcomes were rate of reversion to sinus rhythm and major adverse effects of adenosine and CCAs. Secondary outcomes were rate of recurrence, time to reversion, and minor adverse outcomes. We measured outcomes by calculating odds ratios (ORs) and assessed the quality of primary outcomes using the GRADE approach through the GRADEproGDT website. MAIN RESULTS: We identified two new studies for inclusion in the review update; the review now includes seven trials with 622 participants who presented to an emergency department with SVT. All included studies were RCTs, but only three described the randomisation process, and none had blinded participants, personnel, or outcome assessors to the intervention given. Moderate-quality evidence shows no differences in the number of people reverting to sinus rhythm who were treated with adenosine or CCA (89.7% vs 92.9%; OR 1.51, 95% confidence interval (CI) 0.85 to 2.68; participants = 622; studies = 7; I2 = 36%). Low quality evidence suggests no appreciable differences in major adverse event rates between CCAs and adenosine. Researchers reported only one case of hypotension in the CCA group and none in the adenosine group (0.66% vs 0%; OR 3.09, 95% CI 0.12 to 76.71; participants = 306; studies = 3; I2 = 0%). Included trials did not report length of stay in hospital nor patient satisfaction. AUTHORS' CONCLUSIONS: Moderate-quality evidence shows no differences in effects of adenosine and calcium channel antagonists for treatment of SVT on reverting to sinus rhythm, and low-quality evidence suggests no appreciable differences in the incidence of hypotension. A study comparing patient experiences and prospectively studied adverse events would provide evidence on which treatment is preferable for management of SVT. PMID- 29025198 TI - Foam dressings for treating pressure ulcers. AB - BACKGROUND: Pressure ulcers, also known as pressure injuries and bed sores, are localised areas of injury to the skin or underlying tissues, or both. Dressings made from a variety of materials, including foam, are used to treat pressure ulcers. An evidence-based overview of dressings for pressure ulcers is needed to enable informed decision-making on dressing use. This review is part of a suite of Cochrane Reviews investigating the use of dressings in the treatment of pressure ulcers. Each review will focus on a particular dressing type. OBJECTIVES: To assess the clinical and cost effectiveness of foam wound dressings for healing pressure ulcers in people with an existing pressure ulcer in any care setting. SEARCH METHODS: In February 2017 we searched: the Cochrane Wounds Specialised Register; the Cochrane Central Register of Controlled Trials (CENTRAL); Ovid MEDLINE (including In-Process & Other Non-Indexed Citations); Ovid Embase; EBSCO CINAHL Plus and the NHS Economic Evaluation Database (NHS EED). We also searched clinical trials registries for ongoing and unpublished studies, and scanned reference lists of relevant included studies as well as reviews, meta-analyses and health technology reports to identify additional studies. There were no restrictions with respect to language, date of publication or study setting. SELECTION CRITERIA: Published or unpublished randomised controlled trials (RCTs) and cluster-RCTs, that compared the clinical and cost effectiveness of foam wound dressings for healing pressure ulcers (Category/Stage II or above). DATA COLLECTION AND ANALYSIS: Two review authors independently performed study selection, risk of bias and data extraction. A third reviewer resolved discrepancies between the review authors. MAIN RESULTS: We included nine trials with a total of 483 participants, all of whom were adults (59 years or older) with an existing pressure ulcer Category/Stage II or above. All trials had two arms, which compared foam dressings with other dressings for treating pressure ulcers.The certainty of evidence ranged from low to very low due to various combinations of selection, performance, attrition, detection and reporting bias, and imprecision due to small sample sizes and wide confidence intervals. We had very little confidence in the estimate of effect of included studies. Where a foam dressing was compared with another foam dressing, we established that the true effect was likely to be substantially less than the study's estimated effect.We present data for four comparisons.One trial compared a silicone foam dressing with another (hydropolymer) foam dressing (38 participants), with an eight-week (short-term) follow-up. It was uncertain whether alternate types of foam dressing affected the incidence of healed pressure ulcers (RR 0.89, 95% CI 0.45 to 1.75) or adverse events (RR 0.37, 95% CI 0.04 to 3.25), as the certainty of evidence was very low, downgraded for serious limitations in study design and very serious imprecision.Four trials with a median sample size of 20 participants (230 participants), compared foam dressings with hydrocolloid dressings for eight weeks or less (short-term). It was uncertain whether foam dressings affected the probability of healing in comparison to hydrocolloid dressings over a short follow-up period in three trials (RR 0.85, 95% CI 0.54 to 1.34), very low-certainty evidence, downgraded for very serious study limitations and serious imprecision. It was uncertain if there was a difference in risk of adverse events between groups (RR 0.88, 95% CI 0.37 to 2.11), very low-certainty evidence, downgraded for serious study limitations and very serious imprecision. Reduction in ulcer size, patient satisfaction/acceptability, pain and cost effectiveness data were also reported but we assessed the evidence as being of very low certainty.One trial (34 participants), compared foam and hydrogel dressings over an eight-week (short term) follow-up. It was uncertain if the foam dressing affected the probability of healing (RR 1.00, 95% CI 0.78 to 1.28), time to complete healing (MD 5.67 days 95% CI -4.03 to 15.37), adverse events (RR 0.33, 95% CI 0.01 to 7.65) or reduction in ulcer size (MD 0.30 cm2 per day, 95% CI -0.15 to 0.75), as the certainty of the evidence was very low, downgraded for serious study limitations and very serious imprecision.The remaining three trials (181 participants) compared foam with basic wound contact dressings. Follow-up times ranged from short-term (8 weeks or less) to medium-term (8 to 24 weeks). It was uncertain whether foam dressings affected the probability of healing compared with basic wound contact dressings, in the short term (RR 1.33, 95% CI 0.62 to 2.88) or medium term (RR 1.17, 95% CI 0.79 to 1.72), or affected time to complete healing in the medium term (MD -35.80 days, 95% CI -56.77 to -14.83), or adverse events in the medium term (RR 0.58, 95% CI 0.33 to 1.05). This was due to the very low certainty evidence, downgraded for serious to very serious study limitations and imprecision. Reduction in ulcer size, patient satisfaction/acceptability, pain and cost effectiveness data were also reported but again, we assessed the evidence as being of very low certainty.None of the included trials reported quality of life or pressure ulcer recurrence. AUTHORS' CONCLUSIONS: It is uncertain whether foam dressings are more clinically effective, more acceptable to users, or more cost effective compared to alternative dressings in treating pressure ulcers. It was difficult to make accurate comparisons between foam dressings and other dressings due to the lack of data on reduction of wound size, complete wound healing, treatment costs, or insufficient time-frames. Quality of life and patient (or carer) acceptability/satisfaction associated with foam dressings were not systematically measured in any of the included studies. We assessed the certainty of the evidence in the included trials as low to very low. Clinicians need to carefully consider the lack of robust evidence in relation to the clinical and cost-effectiveness of foam dressings for treating pressure ulcers when making treatment decisions, particularly when considering the wound management properties that may be offered by each dressing type and the care context. PMID- 29025199 TI - Effects of growth hormone on glucose metabolism and insulin resistance in human. AB - Growth hormone (GH) is important for promotion of somatic growth and the regulation of substrate metabolism. Metabolic action of GH occurs in multiple tissues including the liver, muscle, fat and pancreas either directly or indirectly through insulin-like growth factor 1. The diabetogenic action of GH has been well-described in previous in vivo studies. In this paper, we review the metabolic effects of GH on peripheral tissues focusing on glucose metabolism and insulin resistance, and discuss results from human studies on the long-term effects of GH administration on insulin resistance and hyperglycemia. PMID- 29025200 TI - Novel genetic cause of idiopathic short stature. AB - Traditionally, the growth hormone - insulin-like growth factor I (GH - IGF-I) axis is the most important signaling pathway in linear growth, and defects in this axis present as growth hormone deficiencies or IGF-I deficiencies. However, subtle changes in serum levels of GH or IGF-I, caused by gene mutations involved in the GH - IGF-I axis, can present as idiopathic short stature (ISS). This paper briefly discusses GHR and IGFALS. In addition, recent studies have shown that many factors, including paracrine signals, extracellular matrix, and intracellular mechanisms of chondrocytes, regulate the growth plate independent of the GH - IGF-I system. Rapid development of diagnostic technologies has enabled discovery of many genetic causes of ISS. This paper discusses 5 genes, SHOX, NPR2, NPPC, FGFR3, and ACAN, that may lead to better understanding of ISS. PMID- 29025201 TI - The triglyceride-to-high density lipoprotein cholesterol ratio in overweight Korean children and adolescents. AB - PURPOSE: The triglyceride-to-high-density lipoprotein cholesterol (TG/HDL-C) ratio has recently been reported as a biomarker of cardiometabolic risk in obese children and adolescents. The purpose of this study is to describe the TG/HDL-C ratio and related factors in overweight and normal weight Korean children and to evaluate whether the high TG/HDL-C ratio is associated with insulin resistance in overweight children and adolescents. METHODS: Data from 255 overweight (aged 8.7+/-2.0 years) and 514 normal weight (aged 8.9+/-1.8 years) children and adolescents were evaluated. Glucose, insulin, total cholesterol (TC), HDL-C and TG levels were measured after overnight fasting, and the TG/HDL-C ratio, non-HDL C and the homeostasis model assessment of insulin resistance (HOMA-IR) were calculated. RESULTS: The TG/HDL-C ratio was higher in overweight group compared to normal weight group (P<0.001). Among overweight children and adolescents, alanine aminotransferase (P=0.018), non-HDL-C (P<0.001), and HOMA-IR (P=0.004) were different between the TG/HDL-C ratio tertile groups. The prevalence of elevated HOMA-IR was increased with increasing TG/HDL-C ratio tertiles (P for trend=0.003). On regression analysis adjusted for age and sex, the BMI (beta=0.402, P=0.001) and TG/HDL-C ratio (beta=0.251, P=0.014) were independently associated with HOMA-IR (adjusted R2=0.324). The TG/HDL-C ratio of 2.0 or more showed higher sensitivity (55.6%) and specificity (72.9%), when compared to TC (>=200 mg/dL), non-HDL-C (>=145 mg/dL), and LDL-C (>=130 mg/dL) for identifying overweight children with elevated HOMA-IR. CONCLUSIONS: The TG/HDL-C ratio is independently associated with insulin resistance in overweight children and adolescents, and it can be useful in identifying those at higher cardiometabolic risk. PMID- 29025202 TI - Clinical manifestations of Rathke's cleft cysts and their natural progression during 2 years in children and adolescents. AB - PURPOSE: Rathke's cleft cyst (RCC) is an asymptomatic benign lesion. With increased interest in pediatric endocrinology, the prevalence of RCCs in children is also increasing. However, the clinical relevance and proper management of RCC is not well defined in children. Therefore, we investigated the clinical manifestations and radiologic features of RCC in children and adolescents, as well as the natural progression of RCC. METHODS: We retrospectively reviewed the medical records of 91 children and adolescents with RCC diagnosed with magnetic resonance imaging (MRI) in Severance Children's Hospital from January 2006 to December 2015. The clinical, hormonal, and imaging findings were analyzed in patient groups classified according to age. The size of each cyst was assessed in sixty patients who underwent follow-up MRI during the 2 years. RESULTS: Female patients were predominant (64 vs. 27). The common clinical features at presentation were endocrine dysfunction (59.3%), headache (23.0%), and dizziness (4.4%). Symptoms related to endocrine disorders were more frequent in younger patients. In 7 patients managed surgically, the cysts were significantly larger and more frequently located in the suprasellar region. Of 60 nonsurgical patients with a follow-up MRI performed within 2 years after the diagnosis, the RCC size increased in about 26.7% (n=16). CONCLUSIONS: Although 94.4% of the patients with RCC had clinical symptoms, surgery was performed in only about 7.5% of patients. RCC is associated with pituitary insufficiency, thus, baseline and follow-up endocrine function tests are required. Additionally, regular MRI follow-up is required in long-term period to monitor change in size. PMID- 29025203 TI - Impact of targeted education on managing warning and error signals by children and adolescents with type 1 diabetes using the Accu-Chek Combo Insulin Pump System. AB - PURPOSE: Insulin pumps are widely used in diabetes. They are equipped with safety alarms to alert users. Pump manuals contain alarm codes and how to troubleshoot them. However, these manuals are lengthy and difficult to use, particularly in emergencies. We aim to assess the impact of targeted education on warnings and errors in improving competency to troubleshoot the alarms. METHODS: Twenty-one patients, with a median age of 13, were recruited over a 5-month period. Each patient had 2 study visits. The frequencies and types of alarms were recorded, and patients were given a summary sheet that outlined common alarms encountered and troubleshooting tips. In visit 2, the frequencies and types of alarms were compared to those of visit 1. The patients were asked to fill a questionnaire and to rate the education session given in visit 1, their level of competency in decrypting alarm codes, and their promptness in responding to alarms. RESULTS: Low cartridge (W1), low battery (W2), and bolus cancelled (W8) were the commonest warnings. The most noted errors were occlusion (E4), power interruption (E8), empty battery (E2), set not primed (E11), and cartridge empty (E1). The numbers of warning and error signals markedly decreased after targeted education (P<0.05). The ability in decrypting warning signals significantly improved (P=0.02), and the frequency of response to pump alarms significantly increased (P=0.001). CONCLUSIONS: Certain warnings and errors are more common than others in insulin pumps. Targeted education is useful in improving competency and response of patients in managing pump alarms. PMID- 29025204 TI - Insulin resistance and bone age advancement in girls with central precocious puberty. AB - PURPOSE: Precocious puberty has significantly increased recently. While obesity is associated with puberty timing, the relationship between obesity and central precocious puberty (CPP) remains controversial. The purpose of this study was to determine whether insulin resistance is associated with bone age (BA) advancement in girls with CPP. METHODS: We retrospectively analyzed the records of 804 girls referred for puberty evaluation. Anthropometric measurements, BA, sex hormone, sex hormone binding globulin (SHBG), and insulin levels, lipid profiles, and gonadotropin releasing hormone stimulation tests were assessed. Insulin resistance parameters were calculated using the homeostasis model assessment insulin resistance (HOMA-IR) and quantitative insulin sensitivity check index (QUICKI) models. RESULTS: BA, BA advancement, free estradiol index, insulin, and HOMA-IR increased significantly in girls with high body mass index (BMI) compared with that of girls with low BMI in cases of CPP. HOMA-IR was positively correlated with BA advancement and BMI but negatively correlated with SHBG. QUICKI was negatively correlated with BA advancement and BMI and positively correlated with SHBG. When HOMA-IR increased by 1, the odds for BA advancement increased 120% after adjusting for age and BMI (P=0.033). CONCLUSIONS: Insulin resistance could be associated with BA advancement in girls with CPP. PMID- 29025205 TI - Diurnal variation of gonadotropin levels in girls with early stages of puberty. AB - PURPOSE: Pubertal gonadotropin secretion shows circadian pattern and the luteinizing hormone (LH) levels tend to rise in later stages of puberty in girls. We studied the usefulness of basal LH in the evaluation of central precocious puberty with emphasis on the influence of sampling time. METHODS: Medical records of 334 girls that underwent gonadotropin-releasing hormone stimulation test (GnRHST) were reviewed. Auxological and laboratory data were compared between those with early morning (EM, before 10 AM) and late morning/afternoon (LM/A, after 10 AM) basal samples. RESULTS: Among those in sexual maturity rating (SMR) 2, EM samples showed higher basal LH (P=0.004) compare to LM/A samples, whereas those in SMR 3 showed no difference in LH levels between EM and LM/A samples. Among girls with pubertal response, EM group showed higher basal LH (P=0.031) and follicular stimulating hormone (P=0.008) than LM/A group. The EM basal LH was more closely related with the peak stimulated LH than the LM/A basal LH did (rs=0.871 vs. rs=0.524). The optimal basal LH cutoffs to predict a pubertal response to GnRHST were 0.11 IU/L with a sensitivity of 66.7% and a specificity of 78.7% in EM group, and 0.07 IU/L with a sensitivity of 60.0% and a specificity of 78.9% in LM/A group, respectively. CONCLUSIONS: In girls with early stages of puberty, EM basal LH is a more sensitive screening tool than the LM/A basal LH. Diurnal variation should be considered in evaluating children with precocious puberty. PMID- 29025206 TI - Nonalcoholic fatty liver disease in long-term survivors of childhood-onset craniopharyngioma. AB - PURPOSE: Hypothalamic obesity in childhood-onset (CO-) craniopharyngioma patients may predispose to nonalcoholic fatty liver disease (NAFLD). This study reviewed the characteristics of NAFLD associated with CO-craniopharyngioma. METHODS: This study retrospectively reviewed 75 patients who underwent surgery for craniopharyngioma while younger than 15 years of age between 2000 and 2016. RESULTS: Elevated aspartate aminotransferase (AST) or alanine aminotransferase (ALT) above 40 IU/L was observed in 51 of the 75 (68%) CO-craniopharyngioma patients. Imaging studies were performed in 32 patients with elevated liver enzymes. The estimated prevalence of NAFLD in CO-craniopharyngioma was 47%. NAFLD was detected in 22 patients (male 59%, 4.3+/-4.0 years after first surgery). The mean age at the time of the initial operation was 9.1+/-2.9 years. Six patients (27.3%) were diagnosed within 1 year. Among the 19 patients with initial height and weight data, the body mass index (BMI) z-score (BMI_Z) at the time of diagnosis with NAFLD was 1.37+/-1.01 (range, -0.75 to 3.18), with 4 patients (18.2%) being overweight and 9 (40.9%) being obese. BMI_Z increased above BMI_Z at the time of the operation in 13 patients (68.4%). The increment in BMI_Z was 1.13 (range, 0.10-2.84). Seventeen patients did not receive growth hormone. An insulin-like growth factor-I level <3rd percentile was observed in 19 patients. CONCLUSIONS: NAFLD is common in survivors of CO-craniopharyngioma and may develop earlier. If the ALT or AST is above 40 IU/L, a diagnostic work-up should be started. PMID- 29025207 TI - A rare case of multiple pituitary adenomas in an adolescent Cushing disease presenting as a vertebral compression fracture. AB - Cushing disease in children and adolescents, especially with multiple pituitary adenomas (MPAs), is very rare. We report 17-year-old boy with MPAs. He presented with a vertebral compression fracture, weight gain, short stature, headache, and hypertension. On magnetic resonance imaging (MRI), only a left pituitary microadenoma was found. After surgery, transient clinical improvement was observed but headache and hypertension were observed again after 3 months later. Follow-up MRI showed a newly developed right pituitary microadenoma 6 months after the surgery. The need for careful clinical and radiographic follow-up should be emphasized in the search for potential MPAs in patients with persistent Cushing disease. PMID- 29025208 TI - An atypical case of Noonan syndrome with KRAS mutation diagnosed by targeted exome sequencing. AB - Noonan syndrome (NS) is a genetic disorder caused by autosomal dominant inheritance and is characterized by a distinctive facial appearance, short stature, chest deformity, and congenital heart disease. In individuals with NS, germline mutations have been identified in several genes involved in the RAS/mitogen-activated protein kinase signal transduction pathway. Because of its clinical and genetic heterogeneity, the conventional diagnostic protocol with Sanger sequencing requires a multistep approach. Therefore, molecular genetic diagnosis using targeted exome sequencing (TES) is considered a less expensive and faster method, particularly for patients who do not fulfill the clinical diagnostic criteria of NS. In this case, the patient showed short stature, dysmorphic facial features suggestive of NS, feeding intolerance, cryptorchidism, and intellectual disability in early childhood. At the age of 16, the patient still showed extreme short stature with delayed puberty and characteristic facial features suggestive of NS. Although the patient had no cardiac problems or chest wall deformities, which are commonly present in NS and are major concerns for patients and clinicians, the patient showed several other characteristic clinical features of NS. Considering the possibility of a genetic disorder, including NS, a molecular genetic study with TES was performed. With TES analysis, we detected a pathogenic variant of c.458A > T in KRAS in this patient with atypical NS phenotype and provided appropriate clinical management and genetic counseling. The application of TES enables accurate molecular diagnosis of patients with nonspecific or atypical features in genetic diseases with several responsible genes, such as NS. PMID- 29025209 TI - Delayed diagnosis of pituitary stalk interruption syndrome with severe recurrent hyponatremia caused by adrenal insufficiency. AB - Pituitary stalk interruption syndrome (PSIS) involves the occurrence of a thin or absent pituitary stalk, hypoplasia of the adenohypophysis, and ectopic neurohypophysis. Diagnosis is confirmed using magnetic resonance imaging. Patients with PSIS have a variable degree of pituitary hormone deficiency and a wide spectrum of clinical manifestations. The clinical course of the disease in our patient is similar to that of a syndrome of inappropriate antidiuretic hormone secretion. This is thought to be caused by failure in the suppression of vasopressin secretion due to hypocortisolism. To the best of our knowledge, there is no case report of a patient with PSIS presenting with hyponatremia as the first symptom in Korean children. Herein, we report a patient with PSIS presenting severe recurrent hyponatremia as the first symptom, during adolescence and explain the pathophysiology of hyponatremia with secondary adrenal insufficiency. PMID- 29025210 TI - Up-to-date Doppler techniques for breast tumor vascularity: superb microvascular imaging and contrast-enhanced ultrasound. AB - Ultrasonographic Doppler techniques have improved greatly over the years, allowing more sophisticated evaluation of breast tumor vascularity. Superb microvascular imaging (SMI) and contrast-enhanced ultrasound (CEUS) with second generation contrast agents are two representative up-to-date techniques. SMI is a sensitive Doppler technique that adopts an intelligent filter system to separate low-flow signals from artifacts. With the development of second-generation contrast agents, CEUS has also emerged as a useful Doppler technique for evaluating tumor microcirculation. Both techniques can improve the diagnostic performance of gray-scale ultrasonography by providing vascular information useful not only for the morphologic assessment of microvessels, but also for the quantitative analysis of perfusion. In this review, we explain the imaging principles and previous research underlying these two vascular techniques, and describe our clinical experiences. PMID- 29025211 TI - Historical Overview of Stem Cell Biology and Fat Grafting. AB - The last two decades have seen significant advances within the field of adipose stromal cell transfers, with novel clinical applications being published every few months. This article gives a brief historical overview of the development of stem cell biology and fat grafting. PMID- 29025212 TI - Use of Freshly Isolated Human Adipose Stromal Cells for Clinical Applications. AB - The clinical use of adipose-derived cells is being explored very actively around the world for various human diseases. Adipose tissue is an abundant tissue source that can be easily harvested using liposuction. Human lipoaspirates contain a significant amount of mesenchymal stromal cells, as well as other progenitors and terminally differentiated cell types. This review covers the isolation of adipose stromal vascular fraction (SVF), the quality control and safety analysis of freshly isolated cell suspensions. The comparison between freshly isolated stromal cells and culture expanded cells from adipose tissue samples is also highlighted. This article provides a brief but comprehensive review about SVF isolation in the clinical setting, cell characterization, and biological potency of freshly obtained adipose stromal cells. PMID- 29025213 TI - The Future of Fat Grafting. AB - Fat grafting has emerged as an important tool in the armamentarium of plastic surgeons. Its applications in aesthetic and reconstructive surgery continue to expand. However, its limitations (such as inconsistent survival) remain problematic. Recent research efforts have focused on tacking these issues with the use of platelet rich plasma, hypoxic preconditioning, hyperbaric oxygen, and the tissue engineering of scaffolds. In the future, as these laboratory discoveries are translated to clinical application, the beneficial uses of fat grafting will continue to increase. PMID- 29025214 TI - Effect, Feasibility, and Clinical Relevance of Cell Enrichment in Large Volume Fat Grafting: A Systematic Review. AB - : Large volume fat grafting is limited by unpredictable volume loss; therefore, methods of improving graft retention have been developed. Fat graft enrichment with either stromal vascular fraction (SVF) cells or adipose tissue-derived stem/stromal cells (ASCs) has been investigated in several animal and human studies, and significantly improved graft retention has been reported. Improvement of graft retention and the feasibility of these techniques are equally important in evaluating the clinical relevance of cell enrichment. We conducted a systematic search of PubMed to identify studies on fat graft enrichment that used either SVF cells or ASCs, and only studies reporting volume assessment were included. A total of 38 articles (15 human and 23 animal) were included to investigate the effects of cell enrichment on graft retention as well as the feasibility and clinical relevance of cell-enriched fat grafting. Improvements in graft retention, the SVF to fat (SVF:fat) ratio, and the ASC concentration used for enrichment were emphasized. We proposed an increased retention rate greater than 1.5-fold relative to nonenriched grafts and a maximum SVF:fat ratio of 1:1 as the thresholds for clinical relevance and feasibility, respectively. Nine studies fulfilled these criteria, whereof 6 used ASCs for enrichment. We found no convincing evidence of a clinically relevant effect of SVF enrichment in humans. ASC enrichment has shown promising results in enhancing graft retention, but additional clinical trials are needed to substantiate this claim and also determine the optimal concentration of SVF cells/ASCs for enrichment. LEVEL OF EVIDENCE: 4. PMID- 29025215 TI - Regenerative Cells for the Management of Osteoarthritis and Joint Disorders: A Concise Literature Review. AB - As the global population ages, the prevalence of osteoarthritis (OA) and joint disorders represent a major cause of disability and a significant public health burden. As current approaches for the management of OA focus on slowing the progression of disease, without repairing the underlying damage, novel treatments are necessary to improve outcomes. Over the past decade, autologous cell-based therapies using regenerative cells from fat or bone marrow have become a major focus of research into new approaches for the treatment of osteoarthritis and joint disorders. This review is intended to summarize findings in existing literature and identify gaps in knowledge that should be addressed in order to advance the field. We acknowledge that some findings may appear inconsistent, but show that apparent inconsistency in the literature may be attributable to variation in source of cells, stage of disease, method of delivery, follow-up time, evaluation method, and a number of other idiosyncrasies of individual studies. Still, a number of themes emerge from the data and some broader conclusions may be drawn that can be used to guide future studies. Ultimately, we conclude that there is overwhelming evidence demonstrating the safety of the autologous cell-based therapies. Furthermore, the data support the claim that regenerative cells are capable of reversing progression of OA. Regenerative cells, and especially those from adipose tissue, represent a promising new approach for the treatment of OA. Future work should include appropriate controls, and focus on answering questions related to dose required, appropriate delivery vehicle, and the impact of multiple treatments. Additionally, future studies should look at short and long-term effects of the treatments, and use functional as well as radiologic methods to evaluate efficacy. PMID- 29025216 TI - Assisted Salvage of Ischemic Fasciocutaneous Flap Using Adipose-Derived Mesenchymal Stem Cells: In-Situ Revascularization. AB - : Adipose-derived mesenchymal stem cells (ASCs) have been shown to produce vascular endothelial growth factor (VEGF) and can increase perfusion in patients with critical limb ischemia. We will show that this concept can be applied to augment blood flow in zones of flap ischemia. We presented a case study of a 26 year-old man with a complex hand injury covered by a reverse radial perforator fasciocutaneous flap, which developed ischemic necrosis and was treated by debridement, transplantation of ASCs to enhance vascular support, and saline dressings. ASCs are found in the stromal vascular fraction (SVF), a heterogeneous collection of cells, including pericytes and endothelial cells, that is prepared from lipoaspirate using collagenase digestion followed by centrifugation. These were injected into the flap, the palmar tissues both subjacent and peripheral to the flap, and the skin-grafted donor site. The case was documented with photography, measurements at hand therapy, and follow-up angiography MRI. At 72 hours, new vessels appeared diffusely; at 1 week, the remaining tissues of flap were bleeding. The wound, 11 cm * 4 cm, contracted spontaneously and was healed at 21 days. The skin graft over the donor site demonstrated unusual suppleness and elasticity. 3D CT angiography disclosed a new layer of vascularity in the superficial tissues of the palm when compared with the normal side. The patient regained full composite flexion, pinch, opposition, and wrist extension. Application of ASCs into the supporting tissues surrounding the ischemic flap, and into the flap itself, constituted a form of in-situ revascularization (ISR) that was subjectively and objectively effective for this patient. LEVEL OF EVIDENCE: 5. PMID- 29025217 TI - Use of Lipotransfer in Scleroderma. AB - Lipotransfer for soft tissue filling is a well-established plastic and aesthetic surgical technique. Elective fat grafting is considered a safe and well-tolerated procedure. Coleman and others have reported that fat grafting may have tissue regenerative properties and not only serve as a soft tissue filler. There have been reports from our group and others that it may improve fibrosis secondary to many different pathological aetiologies including scleroderma, burn injury, lichen sclerosis, graft vs host disease, and radiation. The mechanism of action remains unclear but has been postulated that is adipose derived stem cells (ADSCs) related. Lipoaspirate has been characterised and shown to contain several cell populations including fibroblasts, endothelial cells, and ADSCs. The ADSCs have shown to secrete angiogenic, immunodulatory, and antiapoptotic factors as well as proliferate and differentiate into different cell types similarly to other stem cell sources. We have shown that ADSCs are functionally different in scleroderma patients but despite this lipotransfer produces a significant reversal in the effects of fibrosis in these patients. The advantage of lipoaspirate containing a valuable source of regenerative properties, ease of access, isolation, and processing may serve a significant future role in the treatment of fibrotic conditions. PMID- 29025218 TI - Regenerative Cells For Facial Surgery: Biofilling and Biocontouring. AB - Zuk et al in 2001 identified stem and regenerative cells within the stromal vascular fraction of fat. In preclinical studies, these cells appeared to stimulate angiogenesis and reduce inflammation, and soon thereafter, clinical use of stromal vascular fraction (SVF) evolved as researchers such as Rigotti, Coleman, Mojallal, our group, and others demonstrated that fat can be used for both therapeutic and aesthetic indications. The regenerative effects of fat and its contents on facial aesthetics have been shown at the histologic and cellular level. Regeneration of elastin and collagen fibers as well as improvement in capillary density and reduction of inflammation have been reported. We review our current approach to the use of regenerative cells and different types of fat grafts in facial surgery. The fat graft is classified, both from a regenerative point of view as well as a tissue product that can be modified into different tissue characteristics, depending on the area and condition treated. Clinical use of SVF enriched fat, millifat, microfat, and nanofat grafts as well as composite fat grafts are reviewed. Based on clinical experience and evidence to date, it appears that the regenerative effects seen with the use of SVF in aesthetic surgery are modest, but there appear to be definite histologic findings of regeneration. These improvements may not be clinically apparent to a patient when cell enriched fat grafts are compared to fat grafts alone. However, the subtle changes seen in histology may be cumulative over time. Three types of fat grafts are defined: millifat (parcel size 2.4<), microfat (1.2<), and nanofat (400-600 MUm). Each are characterized by their injectability ratings and emulsification parcel size as well as amount of sSVF cells. Newer concepts of periosteal fat grafting, buccal fat pad grafting, pyriform aperture fat grafting, intraorbital fat grafting, and nanofat grafting are discussed. Composite fat grafts are presented as a new concept as is biofilling and biocontouring. The use of regenerative cells in facial surgery is evolving rapidly. Our understanding of the anatomic changes that occur with aging has become more precise and our ability to target histologic changes seen with aging has become more effective. Deep fat compartment grafting, superficial fat grafting, nanofat, and SVF are becoming important components of contemporary facial rejuvenation. The use of regenerative approaches in facial rejuvenation is a logical step in changing the paradigm from surgical treatment of aging to a more proactive prevention and maintenance approach that keeps up with changes in the tissues as they age. PMID- 29025219 TI - Commentary on: New High Dose Pulsed Hyaluronidase Protocol for Hyaluronic Acid Filler Vascular Adverse Events. PMID- 29025220 TI - Commentary on: Implementation of an Integrated Biodimensional Method of Breast Augmentation with Anatomic, Highly Cohesive Silicone Gel Implants: Short-Term Results With the First 620 Consecutive Cases. PMID- 29025221 TI - Commentary on: Incidence and Preoperative Risk Factors For Major Complications in Aesthetic Rhinoplasty: Analysis of 4978 Patients. PMID- 29025222 TI - Commentary on: Report on Mortality from Gluteal Fat Grafting: Recommendations from the ASERF Task Force. PMID- 29025223 TI - Unusual Presentation of Tinea Corporis Associated With the Use of a Microneedling Device. PMID- 29025224 TI - Acceptable Risk: Who Decides? PMID- 29025225 TI - Lymphatic and Sensory Function of the Upper Limb After Brachioplasty in Post Bariatric Massive Weight Loss Patients. AB - Background: Varied deformities of the upper arm are common after massive weight loss. Brachioplasty techniques have been successively modified to improve aesthetic outcomes and avoid complications, especially lymphedema and sensory damage. Objectives: The authors evaluated lymphatic drainage and sensory function of the upper limbs after brachioplasty performed with a double-ellipse marking technique, a medial incision, superficial undermining, and posterior arm liposuction. Methods: This prospective study included 12 women who underwent brachioplasty after bariatric surgery and massive weight loss. Lymphatic drainage was evaluated by forearm volumetry and indocyanine green lymphography of the entire limb. Cutaneous sensitivity thresholds were determined with Semmes Weinstein monofilaments. Results: Patients received postoperative follow up for 12 months. Complications included a small dehiscence for 1 patient and hypertrophic scarring for 2 patients. Cutaneous sensitivity and forearm volumetry were unchanged after brachioplasty for all patients. Results of indocyanine green lymphography indicated that all patients had normal linear lymphatic patterns pre and postoperatively. Conclusions: Results of the study support the belief that this type of brachioplasty does not disrupt sensory or lymphatic function of the limb. Level of Evidence: 4. PMID- 29025226 TI - A Histopathologic Diagnosis of Vascular Occlusion After Injection of Hyaluronic Acid Filler: Findings of Intravascular Foreign Body and Skin Necrosis. AB - : Before injecting hyaluronic acid (HA) filler into high-risk zones of the face, considerable caution must be exercised, including careful selection of the most appropriate filler, volume, and injection technique. Rare but severe adverse events have occurred during and after injection of HA filler in or around the periorbital region, such as skin necrosis and blindness. In the present case, involving a 57-year-old woman, approximately 0.1 mL of HA was injected into each side of the glabella to minimize wrinkles. The filler was injected into the dermis, utilizing the linear threading method. Proper care and caution were exercised before and during the procedure. Two days later, purple discoloration and erythema were observed in the left glabellar zone and forehead. A biopsy specimen was obtained and, based on histopathologic examination, frontal skin necrosis secondary to vascular occlusion was diagnosed. The likely cause and mechanism of the embolism will be discussed. To the author's knowledge, histopathologic findings of an intravascular remnant after injection of HA appear to be rare. LEVEL OF EVIDENCE: 5. PMID- 29025227 TI - The Efficacy of Vibration Anesthesia on Reducing Pain Levels During Lip Augmentation: Worth the Buzz? AB - Background: Lip augmentation procedures have increased drastically in the last years as patients seek to enhance the shape and size of their lips with dermal fillers. One of the main concerns faced with these procedures is the pain inflicted through injections. On the other hand, many different techniques have been introduced for the reduction of pain while performing office-based minimal invasive procedures. Objectives: This study aims to determine the analgesic effect of vibration anesthesia during lip augmentation procedures and to evaluate its overall effect on the comfort of patients. Methods: A split-lip study was designed in a randomized fashion for 25 lip augmentation patients who received hyaluronic acid fillers with or without with a concurrent vibration stimulus on either half of their lips. Patients were asked to score the pain that they felt during lip injections on a scale from 0 to 10 (0 being no pain and 10 being the worst pain ever felt) for either lip half. The pain scores were then analyzed for significance. Results: The overall pain score on the vibration-assisted side was 3.82 +/- 1.73 while the pain score for the side with no vibration was 5.6 +/- 1.76 (P < 0.001). Twenty-three patients (92%) felt less pain with the addition of vibration while, interestingly, 2 patients (8%) stated that they felt an increase in pain levels on the vibration-treated side. Conclusions: Vibration devices can be a safe and effective tool for lowering pain levels in patients undergoing lip augmentation with hyaluronic acid fillers. Level of Evidence: 2. PMID- 29025228 TI - Commentary on: Patient-Reported Outcomes of Aesthetics and Satisfaction in Immediate Breast Reconstruction After Nipple-Sparing Mastectomy With Implants and Fat Grafting. PMID- 29025229 TI - Mechanical Supplementation With the Stromal Vascular Fraction Yields Improved Volume Retention in Facial Lipotransfer: A 1-Year Comparative Study. AB - Background: Unpredictable volume maintenance in the long term is a major limitation of autologous fat grafting. Objectives: The authors compared results of autologous lipotransfer to the face with or without enrichment of fat with the stromal vascular fraction (SVF). Methods: Thirty patients with asymmetric depletion of facial volume were included in a prospective study. Patients were randomly assigned to undergo a single session of autologous fat transfer with washed adipose tissue (control group) or with washed adipose tissue combined with the pellet of centrifuged lipoaspirate, which contained the SVF (enriched group). Patients were evaluated clinically and from photographs. A subset of 5 patients in each group underwent computed tomography (CT) preoperatively and 12-months postoperatively for quantitative assessment of graft retention. Washed and fractionated lipoaspirates were evaluated histochemically and with flow cytometry to determine relative abundances of viable cells. Results: No major complications occurred. CT findings 12 months postoperatively indicated that patients who received SVF-enriched fat had significantly better volume retention (9.6% volume loss vs 24% in the control group; P = 0.013). Independent surgeons more frequently rated long-term aesthetic outcomes as "excellent" for patients in the enriched group (82.5% vs 47.6% for control group). Laboratory results indicated that each pellet contained approximately 16,000 intact adipose-derived stem cells. Conclusions: Lipotransfer with SVF-enriched adipose tissue is safe and associated with improved volume retention, compared with transplantation of unenriched fat. The SVF can be dissociated from lipoaspirate by centrifugation to yield a large quantity of viable regenerative cells, without enzymatic digestion. Level of Evidence: 2. PMID- 29025230 TI - Commentary on: Mechanical Supplementation With the Stromal Vascular Fraction Yields Improved Volume Retention in Facial Lipotransfer: A 1-Year Comparative Study. PMID- 29025231 TI - Commentary on: The Efficacy of Vibration Anesthesia on Reducing Pain Levels During Lip Augmentation: Worth the Buzz? PMID- 29025233 TI - Corrigendum. PMID- 29025232 TI - Commentary on: Autologous Adipose-Derived Tissue Matrix Parts I and II. PMID- 29025234 TI - Clitoral Surgery After Female Genital Mutilation/Cutting. PMID- 29025235 TI - Comments on "Female Genital Mutilation Reconstruction: A Preliminary Report". PMID- 29025236 TI - Response to Letters Regarding "Female Genital Mutilation Reconstruction: A Preliminary Report". PMID- 29025237 TI - The Role of Injectables in Aesthetic Surgery: Financial Implications. AB - Background: The plastic surgeon competes with both core and noncore physicians and surgeons for traditional cosmetic procedures. In 2007, the American Society for Aesthetic Plastic Surgery (ASAPS) and the American Society of Plastic Surgeons (ASPS) joined efforts to form a Cosmetic Medicine Task Force to further analyze this trend. Objectives: Our objective is to document and quantify the patient capture and total collections generated in a single surgeon's practice exclusive from Botulinum Toxin A and filler injections over a 10-year period. We subsequently identified the effect and importance that fillers and Botulinum Toxin A have on an active cosmetic practice. Methods: A retrospective chart review of all male and female patients who received Botulinum Toxin A or soft tissue filler injections (noninvasive aesthetic treatment) in a single surgeons practice from January 2004 to December 2013 was undertaken. Only those patients new to the practice and who were exclusively seeking out Botulinum Toxin A or fillers were included in the study. Chart review then identified which of these selected patients ultimately underwent invasive aesthetic surgery during this 10 year period. Noninvasive and invasive aesthetic surgery total collections were calculated using billing records. Results: From January 2004 to December 2013, 375 patients entered the senior surgeon's practice specifically requesting and receiving noninvasive aesthetic treatments. Of these 375 patients, 59 patients (15.7%) subsequently underwent an aesthetic surgery procedure at an average of 19 months following initial noninvasive aesthetic treatment. Of these 375 patients, 369 were female and 6 were male. The most common initial invasive aesthetic procedure performed after injectable treatment included 22 facelifts (18.5%), 21 upper eyelid blepharoplasties (17.6%), and 15 endoscopic brow lifts (12.6%). Total collections from noninvasive aesthetic sessions and invasive surgery combined represented US$762,470 over this 10-year span. This represented US$524,771 and US$396,166 in total collections for injectables and surgery respectively. Conclusions: Noninvasive aesthetic surgery is a critical part of a plastic surgery practice. A measurable and significant number of patients who sought out a single plastic surgeon exclusively for noninvasive treatment ultimately underwent traditional invasive cosmetic surgical procedures. PMID- 29025238 TI - Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL): Why the Search for an Infectious Etiology May Be Irrelevant. PMID- 29025239 TI - Response to "Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL): Why the Search for an Infectious Etiology May Be Irrelevant". PMID- 29025240 TI - The Vast Majority of Aesthetic Surgery Patients are at Low Risk for Venous Thromboembolism and Do Not Require Chemical Prophylaxis. PMID- 29025241 TI - Commentary on: Safety of Cosmetic Surgery in Adolescent Patients. PMID- 29025242 TI - The diagnosis and management of congenital and adult-onset hyperinsulinism (nesidioblastosis) - literature review. AB - Congenital and adult-onset hyperinsulinism (CHI) must be taken under consideration in the differential diagnosis of hypoglycaemia symptoms with endogenous hyperinsulinism, especially in cases in which there was failure to find an insulinoma. Histological examination is necessary for a definitive diagnosis. CHI is a disorder with three histopathological variants: focal CHI, diffuse CHI, and atypical CHI. These variants are clinically indistinguishable. According to published statistics, 0.5 to 5% of nesidioblastosis cases occur in adults. Clinical manifestation ranges from mildly symptomatic up to life threatening hypoglycaemia. Early diagnosis and treatment are important in young and very young patients because early treatment accounts for favourable mental outcomes. PMID- 29025243 TI - Colon cancer with micropapillary carcinoma component: a clinopathologic study of 9 cases. AB - Recently, colon cancer with micropapillary pattern (MPP) has been identified. MPP is defined as tight tufts surrounded by cleft-like space and lacking true fibrovascular cores and showing reverse polarity. In this article, we studied nine cases of colon cancer with MPP. MPP usually accounted for a minor component in total tumour volume, which ranged from 3 to 40% with a mean percentage of 19.2%. Associated histological subtype showed moderately differentiated tubular adenocarcinoma in all cases. The reverse polarity of villin (9/9, diffuse) in MPP component was superior to that of CA125 (5/9, focal) or CD10 (5/9, diffuse 2/9, focal 3/9). In clinicopathological indicators such as sex, tumour location, tumour depth, lymphovascular invasion, lymph node metastasis, or pathological stage and clinical behaviour, there was statistically no difference between the MPP group and the non-MPP group of the colon. In conclusion, colon cancer with MPP is characterised by frequent association with moderately differentiated tubular adenocarcinoma as a minor component. Villin immunohistochemistry is useful in the detection of reverse polarity of MPP of colon cancer. PMID- 29025244 TI - A comparative study of expression of Fc receptors in relation to the autoantibody mediated immune response and neutrophil elastase expression in autoimmune blistering dermatoses. AB - Here we investigated the cutaneous CD32A and CD89 expression in relation to the neutrophil elastase (NE) expression and serum level of anti-desmoglein 1 and 3 (DSG1/DSG3) IgG in pemphigus, anti-BP180/BP230 IgG in bullous pemphigoid (BP), anti-gliadin nonapeptides (npG), tissue (tTG), and epidermal transglutaminases (eTG) IgA in dermatitis herpetiformis (DH). The examined material consisted of skin/mucosal tissues and sera. In total, 87 patients were studied. Immunohistochemistry on paraffin-embedded sections with quantitative digital morphometry was used to measure the intensity of CD32A/CD89/NE expressions. Levels of anti-DSG1/DSG3 IgG, anti-BP180/BP230 IgG, and anti-npG/tTG/eTG IgA were evaluated with ELISAs. CD32A was abundantly expressed in cutaneous lesions in pemphigus and BP. We found no statistically significant correlation between the CD32A/CD89 and NE expression intensities in pemphigus, BP, and DH. There was a significant correlation between CD89 expression and anti-npG IgA in DH. Our results revealed a lack of correlation between CD32A expressions and anti DSG1/DSG3 IgG levels in pemphigus, anti-BP180/BP230 IgG in BP as well as CD89 expression and anti-tTG/eTG IgA in DH. CD89 seems to be linked with gluten intolerance in DH rather than with proteolytic destruction of dermal-epidermal junction. CD32A appears to play an important role in mediating skin injury in pemphigus and BP, but probably independently from specific autoantibodies. PMID- 29025245 TI - Hepatic chemerin mRNA in morbidly obese patients with nonalcoholic fatty liver disease. AB - The aim of this study was to investigate hepatic chemerin mRNA, serum chemerin concentration, and immunohistochemical staining for chemerin and and chemokine receptor-like 1 (CMKLR1) in hepatic tissue in 56 morbidly obese women with nonalcoholic fatty liver disease (NAFLD) and to search for a relationship with metabolic and histopathological features. Chemerin mRNA was assessed by quantitative real-time PCR, chemerin, and CMKLR1 immunohistochemical expression with specific antibodies, while serum chemerin concentration was assessed with commercially available enzyme-linked immunosorbent assays. Serum chemerin concentration reached 874.1 +/-234.6 ng/ml. There was no difference in serum chemerin levels between patients with BMI < 40 kg/m2 and >= 40 kg/m2. Serum chemerin concentration tended to be higher in patients with hepatocyte ballooning, greater extent of steatosis, and definite nonalcoholic steatohepatitis (NASH). Liver chemerin mRNA was observed in all included patients and was markedly, but insignificantly, higher in those with BMI >= 40 kg/m2, hepatocyte ballooning, greater extent of steatosis, and definite NASH. Hepatic chemerin mRNA might be a predictor of hepatic steatosis, hepatocyte ballooning, and NAFLD activity score (NAS) but seemed not to be a primary driver regulating liver necroinflammatory activity and fibrosis. The lack of association between serum chemerin and hepatic chemerin mRNA may suggest that adipose tissue but not the liver is the main source of chemerin in morbidly obese women. PMID- 29025246 TI - Vaspin mRNA levels in the liver of morbidly obese women with nonalcoholic fatty liver disease. AB - The aim of this study was to evaluate hepatic vaspin mRNA in morbidly obese women with nonalcoholic fatty liver disease (NAFLD) and to look for its relationships with metabolic and histopathological features. The study included 56 severely obese women who underwent intraoperative wedge liver biopsy during bariatric surgery. Hepatic vaspin mRNA was assessed by quantitative real-time PCR. Vaspin mRNA found in all included patients was markedly higher in patients with body mass index (BMI) >= 40 kg/m2 (4.59 +/-3.09 vs. 0.44 +/-0.33; p = 0.05). An evident but statistically insignificant difference in vaspin mRNA levels was observed between patients with and without hepatocyte ballooning (4.77 +/-4.23 vs. 0.45 +/-0.29, respectively), with and without steatosis (4.80 +/-4.20 vs. 0.41 +/-0.29, respectively), without and with fibrosis (0.25 +/-0.80 vs. 6.23 +/ 7.2, respectively), and those without and with lobular inflammation (0.27 +/-1.0 vs. 5.55 +/-10.1, respectively). There was marked difference in vaspin mRNA between patients with simple steatosis/borderline nonalcoholic steatohepatitis (NASH) compared to those with definite NASH (0.24 +/-0.96 vs. 10.5 +/-10.4). Adiposity is an undoubted confounding factor influencing vaspin levels. Hepatic vaspin mRNA seems to be markedly elevated in morbidly obese patients with more advanced NAFLD and when hallmarks of NASH were observed. Pointing to non-linear mRNA levels within the NAFLD spectrum and an evident increase in patients with fibrosis and definite NASH, the detrimental action of vaspin cannot be excluded. PMID- 29025247 TI - Molecular and histological characteristics of early triploid and partial molar pregnancies. AB - Molar pregnancy has the highest incidence of all gestational trophoblastic diseases. This is a heterogeneous group of diseases, composed of precancerous lesions and gestational trophoblastic tumours. The hydatidiform mole is characterised by varying degrees of proliferation of syncytiotrophoblastic and cytotrophoblastic cells and stromal oedema. Based on established morphological and cytogenetic criteria, molar pregnancy is divided into partial and complete. The risk of persistent trophoblastic disease is higher in complete moles compared with partial moles. The aim of this study was to assess the importance of additional molecular methods as a conjunction to the standard histopathological analysis to accurately determine the type and origin of triploidy and to detect partial molar pregnancy. This study examined a total of 24 cases of triploidy. Apart from the detailed histomorphological analysis, a molecular analysis of the placental tissue and maternal DNA was also performed. Digynic triploidy was found in 15 cases, whereas diandric triploidy was found in nine of the cases. The results showed that due to the histomorphological overlap between partial molar pregnancy and hydropic abortions, concomitant histopathological analysis of the placental tissue and molecular analysis of the placental and maternal DNA can lead to correct diagnosis. PMID- 29025248 TI - Ultrastructural liver changes in the experimental thyrotoxicosis. AB - Aim of the study is to evaluate ultrastructural changes of rat liver in experimental thyrotoxicosis. For the study, 36 male rats have been utilized, weighing approximately 150-190 g, which were divided into three groups: the first, control group (12 animals) was composed of healthy rats that received intragastric sodium chloride 0.9% solution, the second group (12 animals) - animals with experimental thyrotoxicosis, which received intragastric solution of L-thyroxine at the rate of 200 MUg/kg for 2 weeks, and the third group (12 animals) - rats with experimental thyrotoxicosis, which received intragastric solution of L-thyroxine at the rate of 200 MUg/kg for 4 weeks. For electron microscopic studies small pieces of liver tissue were taken at the end of the 2nd and 4th weeks of the experiment. The material was studied and documented in electron micrographs by using a TEM-125K electron microscope. In experiment in white male rats the electron-microscopic state of the liver in thyrotoxicosis has been studied. It has been established that thyrotoxicosis is accompanied by the significant changes of the hepatocytes ultrastructure, blood and bile capillaries. Experimental thyrotoxicosis causes significant damage of the liver plasma membranes and intracellular structural components of hepatocytes and endothelial cells. In experimental thyrotoxicosis, on the background of microcirculatory disorders, significant damage of plasmatic and intracellular organoid membranes of hepatocytes in the liver develops, which has an adverse effect on the functionality of the organ. The found ultrastructural changes are aggravated depending on the duration of thyrotoxicosis. PMID- 29025249 TI - The utility of glomerular C4d immunostaining in renal biopsies in patients with immunoglobulin A nephropathy. A clinicopathological study. AB - The course of IgA nephropathy (IgAN) is highly variable and ranges from a totally benign condition to end-stage renal disease in approximately one third of cases. The identification of new prognostic markers could provide insights into the pathogenesis of IgAN and unveil new therapeutic avenues. Glomerular deposition of C4d is a marker of activation of the lectin pathway of complement. It is thought that activation of the lectin pathway in IgAN is associated with more severe renal damage, and more severe histological findings. In view of the above, the aim of the present study was to compare the clinical presentation, laboratory data, and histological lesions in the renal biopsy in IgAN patients with positive and negative staining for mesangial C4d depositions. Our study revealed that hypertension, severe proteinuria, a high level of serum creatinine, low eGFR at the time of presentation, as well as tubular atrophy/interstitial fibrosis > 50%, and endocapillary proliferation were significantly more frequent in the C4d (+) group than in the C4d (-) group. Based on our research, we can assume that mesangial immunoexpression of C4d seems to be a useful prognostic factor in IgAN. PMID- 29025250 TI - Ceramic-polylactide composite material used in a model of healing of osseous defects in rabbits. AB - The growing demand for various kinds of bone regeneration material has in turn increased the desire to find materials with optimal physical, chemical, and biological properties. The objective of the present study was to identify the proportions of ceramic and polylactide components in a bone substitute material prepared in collaboration with the Crystal Chemistry of Drugs Team of the Faculty of Chemistry at the Jagiellonian University, which would be optimal for bone regeneration processes. Another goal was to provide a histological analysis of the influence of a ceramic-polylactide composite on the healing of osseous defects in rabbits. The study was performed on laboratory animals (18 New Zealand White rabbits). The following study groups were formed: - group A (study group, 9 animals) - in this group we performed a histological analysis of healing with a ceramic-polylactide composite based on an 80/20 mix of hydroxyapatite and polylactide; - group B (study group, 9 animals) - in this group we performed a histological analysis of healing with a ceramic-polylactide composite with a reduced amount of hydroxyapatite compared to the previous group, i.e. in a ratio of 61/39; - group K (control, 18 animals) - the control group comprised self healing, standardised osseous defects prepared in the calvarial bone of the rabbits on the contralateral side. In the assessment of histological samples, we were also able to eliminate individual influences that might have led to differentiation in wound healing. The material used in the histological analysis took the form of rabbit bone tissue samples, containing both defects, with margins of around 0.5 cm, taken 1, 3, and 6 months after the experiment. The osseous defects from groups A and B filled with ceramic-polylactide material healed with less inflammatory infiltration than was the case with control group K. They were also characterised by faster regression, and no resorption or osteonecrosis, which allowed for better regeneration of the bone tissue. A statistical analysis of the study results revealed the increased resorptive activity of the composite in group B, which may have been due to its higher polylactide content. Simultaneously, we observed that healing of osseous defects filled with ceramic-polylactide composites in 80/20 and 61/39 ratios was comparable. PMID- 29025251 TI - Glial choristoma of the tongue. Clinicopathological analysis of a case and pathogenetic insights. AB - Glial choristoma of the tongue is a rare developmental anomaly usually occurring in the first two years of life. Although diverse theories have been suggested to explain its development, they do not seem to take into account the normal tongue development. We report here on a glial choristoma of the tongue in a two-month old male with the aim to describe the clinicopathological features of this lesion and to discuss the pathogenetic role of the cells that normally migrate from the cranial neural crests to generate the ectomesenchymal derivatives of the tongue and express neuroglial differentiation as normal developmental pathway. PMID- 29025252 TI - Solitary breast metastasis from oestrogen receptor-positive pulmonary adenocarcinoma: report of a case with a potential pitfall. AB - Solitary breast metastases are rare and mimic primary breast carcinoma. A 60-year old female with a history of pulmonary adenocarcinoma presented with a solitary left breast lump suspicious for malignancy on breast imaging. Core-needle biopsy disclosed an adenocarcinoma strongly and diffusely positive for oestrogen receptors. Further immunohistochemistry was consistent with the breast tumour being a solitary metastasis of her pulmonary cancer. Clinicians and pathologists should be aware of the fact that pulmonary adenocarcinomas may sometimes display strong rather than only focal positivity for oestrogen receptors by immunohistochemistry and may mimic breast cancer of no special type. PMID- 29025253 TI - Pathology of mitochondria in MELAS syndrome: an ultrastructural study. AB - Ultrastructural changes in skeletal muscle biopsy in a 24-year-old female patient with clinically suspected mitochondrial encephalomyopathy lactic acidosis and stroke-like episodes (MELAS) syndrome are presented. We observed proliferation and/or pleomorphism of mitochondria in skeletal muscle and smooth muscle cells of arterioles, as well as in pericytes of capillaries. Paracrystalline inclusions were found only in damaged mitochondria of skeletal muscle. Genetic testing revealed a point mutation in A3243G tRNALeu(UUR) typical for MELAS syndrome. We conclude that differentiated pathological changes of mitochondria in the studied types of cells may be associated with the different energy requirements of these cells. PMID- 29025254 TI - Chromoblastomycosis of the leg. AB - CASE REPORT: We herein report a case of chromoblastomycosis presenting as a verrucous lesion over the leg. A 56-year-old male patient was a known case of carcinoma larynx and was treated for the same. At presentation to our hospital, the patient, in addition to the recurrent local disease, was suspected to have second primary in the form of verrucous carcinoma of the leg. Histopathological examination of the skin biopsy revealed the presence of characteristic pigmented sclerotic bodies with pseudoepitheliomatous hyperplasia of the overlying epithelium. The case was reported as chromoblastomycosis and the patient responded well to anti-fungal chemotherapy in the form of itraconazole. PMID- 29025256 TI - Heterometal-Coordinated Monomeric Concanavalin A at pH 7.5 from Canavalia ensiformis. AB - The structure of concanavalin A (ConA) has been studied intensively owing to its specific interactions with carbohydrates and its heterometal (Ca2+ and Mn2+) coordination. Most structures from X-ray crystallography have shown ConA as a dimer or tetramer, because the complex formation requires specific crystallization conditions. Here, we reported the monomeric structure of ConA with a resolution of 1.6 A, which revealed that metal coordination could trigger sugar-binding ability. The calcium coordination residue, Asn14, changed the orientation of carbohydrate-binding residues and biophysical details, including structural information, providing valuable clues for the development and application of detection kits using ConA. PMID- 29025257 TI - Utility of the National Lung Screening Trial Criteria for Estimation of Lung Cancer in the Korean Population. AB - Purpose: Screening forlung cancerin high-risk patients using theNational Lung Screening Trial (NLST) criteria resulted in a decreased lung cancer-related mortality rate. However, whether these criteria are applicable to the Korean has not been investigated thus far. Therefore, we estimated the utility of the NLST criteria as a screening tool for lung cancer in the Korean population. Materials and Methods: The total number of newly diagnosed lung cancer cases in 2013 was obtained from the Korea National Statistical Office. The proportion of newly diagnosed lung cancer cases that met the NLST criteria was calculated via a retrospective cohort of a tertiary referral hospital. We estimated the nationwide proportion of patients who met the NLST criteria using the 5th Korea National Health and Nutrition Examination Survey conducted during 2010-2012 (KNHANES V). Results: Using KNHANES V data, we found that approximately 6.92% of the general population of Korea would meet the NLST criteria. In the tertiary referral hospital, 29.6% of the 2,689 newly diagnosed lung cancer patients met the NLST criteria. In 2013, the total number of newly diagnosed lung cancer cases in Korea was 23,177. The estimated nationwide proportions of lung cancer patients who met and did not meet the NLST criteria were 0.37% and 0.06%, respectively, yielding a ratio of 5.78. Conclusion: The NLST criteria demonstrated sound clinical utility for lung cancer screening of high-risk patients in Korea. PMID- 29025258 TI - MicroRNA-373 Inhibits Cell Proliferation and Invasion via Targeting BRF2 in Human Non-small Cell Lung Cancer A549 Cell Line. AB - Purpose: The purpose of this study was to investigate the biological role and mechanism of miR-373 targeting of TFIIB-related factor 2 (BRF2) in the regulation of non-small cell lung cancer (NSCLC) cells. Materials and Methods: miRNA microarray chip analysis of four paired NSCLC and adjacent non-tumor tissues was performed. Quantitative real-time polymerase chain reaction (qRT-PCR) andwestern blotting were used to detect the expression levels of miR-373 and BRF2 in NSCLC tissues and cell lines. The dual-luciferase reporter method was performed to determine if BRF2 is a target of miR-373. MTT, wound-healing, Transwell, and flow cytometric assays were conducted to examine the proliferation, migration, invasion, and cell cycle progression of NSCLC A549 cells, respectively; western blotting was used to detect the expression of epithelial-mesenchymal transition (EMT)-related proteins. Results: The miRNA microarray chip analysis demonstrated that miR-373 was down-regulated in NSCLC tissues, and this result was confirmed by qRT-PCR. Additionally, miR-373 was confirmed to target BRF2. Moreover, miR-373 expression was inversely correlated with BRF2 expression in NSCLC tissues and cell lines; both miR-373 down-regulation and BRF2 up-regulation were strongly associated with the clinicopathological features and prognosis of NSCLC patients. In vitro, overexpression of miR-373 markedly inhibited cell proliferation, migration, and invasion; up-regulated the expression of E-cadherin; and down regulated the expression of N-cadherin and Snail in A549 cell. Knockdown BRF2 by siRNA resulted in effects similar to those caused by overexpression of miR-373. Conclusion: MiR-373 is decreased in NSCLC, and overexpression of miR-373 can suppress cell EMT, and inhibit the proliferation, migration, and invasion of NSCLC A549 cells by targeting BRF2. PMID- 29025259 TI - Using the capture-recapture method to estimate the human immunodeficiency virus positive population. AB - OBJECTIVES: The capture-recapture method was applied to estimate the number of human immunodeficiency virus (HIV)-positive individuals not registered with any data sources. METHODS: This cross-sectional study was conducted in Lorestan Province, in the west of Iran, in 2016. Three incomplete sources of HIV-positive individuals, with partially overlapping data, were used, including: (a) transfusion center, (b) volunteer counseling and testing centers (VCTCs), and (c) prison. The 3-source capture-recapture method, using a log-linear model, was applied for data analysis. The Akaike information criterion and the Bayesian information criterion were used for model selection. RESULTS: Of the 2,456 HIV positive patients registered in these 3 data sources, 1,175 (47.8%) were identified in transfusion center, 867 (35.3%) in VCTCs, and 414 (16.8%) in prison. After the exclusion of duplicate entries, 2,281 HIV-positive patients remained. Based on the capture-recapture method, 14,868 (95% confidence interval, 9,923 to 23,427) HIV-positive individuals were not identified in any of the registries. Therefore, the real number of HIV-positive individuals was estimated to be 17,149, and the overall completeness of the 3 registries was estimated to be around 13.3%. CONCLUSIONS: Based on capture-recapture estimates, a huge number of HIV-positive individuals are not registered with any of the provincial data sources. This is an urgent message for policymakers who plan and provide health care services for HIV-positive patients. Although the capture-recapture method is a useful statistical approach for estimating unknown populations, due to the assumptions and limitations of the method, the population size may be overestimated as it seems possible in our results. PMID- 29025260 TI - Microbial Photoelectrotrophic Denitrification as a Sustainable and Efficient Way for Reducing Nitrate to Nitrogen. AB - Biological removal of nitrate, a highly concerning contaminant, is limited when the aqueous environment lacks bioavailable electron donors. In this study, we demonstrated, for the first time, that bacteria can directly use the electrons originated from the photoelectrochemical process to carry out the denitrification. In such photoelectrotrophic denitrification (PEDeN) systems (denitrification biocathode coupling with TiO2 photoanode), nitrogen removal was verified solely relying on the illumination dosing without consuming additional chemical reductant or electric power. Under the UV illumination (30 mW.cm-2, wavelength at 380 +/- 20 nm), nitrate reduction in PEDeN apparently followed the first-order kinetics with a constant of 0.13 +/- 0.023 h-1. Nitrate was found to be almost completely converted to nitrogen gas at the end of batch test. Compared to the electrotrophic denitrification systems driven by organics (OEDeN, biocathode/acetate consuming bioanode) or electricity (EEDeN, biocathode/abiotic anode), the denitrification rate in PEDeN equaled that in OEDeN with a COD/N ratio of 9.0 or that in EEDeN with an applied voltage at 2.0 V. This study provides a sustainable technical approach for eliminating nitrate from water. PEDeN as a novel microbial metabolism may shed further light onto the role of sunlight played in the nitrogen cycling in certain semiconductive and conductive minerals-enriched aqueous environment. PMID- 29025262 TI - Discovery of a Turn-On Fluorescent Probe for Myeloid Cell Leukemia-1 Protein. AB - The environment-sensitive probe 2 with turn-on switch for Mcl-1 protein was developed herein. After careful evaluation, this small molecule fluorescent probe revealed a selective binding affinity with Mcl-1 protein with a Ki value of 2.6 MUM and can be well applied to imaging Mcl-1 protein or detecting the cellular distribution of Mcl-1 protein inhibitors. Compared with other imaging approaches, such as the immunofluorescence and fluorescent protein-based techniques, this fluorescent method is rapid, convenient, and affordable, especially since a washing procedure is no longer needed. This environment-sensitive "off-on" design strategy may present a case in point for developing small-molecule fluorescent probe of Bcl-2 family proteins. PMID- 29025261 TI - Amperometric Gas Sensors as a Low Cost Emerging Technology Platform for Air Quality Monitoring Applications: A Review. AB - This review examines the use of amperometric electrochemical gas sensors for monitoring inorganic gases that affect urban air quality. First, we consider amperometric gas sensor technology including its development toward specifically designed air quality sensors. We then review recent academic and research organizations' studies where this technology has been trialed for air quality monitoring applications: early studies showed the potential of electrochemical gas sensors when colocated with reference Air Quality Monitoring (AQM) stations. Spatially dense networks with fast temporal resolution provide information not available from sparse AQMs with longer recording intervals. We review how this technology is being offered as commercial urban air quality networks and consider the remaining challenges. Sensors must be sensitive, selective, and stable; air quality monitors/nodes must be electronically and mechanically well designed. Data correction is required and models with differing levels of sophistication are being designed. Data analysis and validation is possibly the biggest remaining hurdle needed to deliver reliable concentration readings. Finally, this review also considers the roles of companies, urban infrastructure requirements, and public research in the development of this technology. PMID- 29025263 TI - Synthesis of Organophosphorus Compounds through Copper-Catalyzed Annulation Involving C-O and C-P Bond Formations. AB - A novel copper(II) trifluoromethanesulfonate-catalyzed, high-efficiency, and atom economical synthesis of valuable organophosphorus compounds via cascade annulation of propargylic alcohols with diphenylphosphine oxide is described. This protocol, which has a good functional-group compatibility and insensitivity to an ambient atmosphere, provides a simple and direct pathway to the products, organophosphorus compounds, in good yields under mild conditions. The method could be efficiently scaled up to gram scale, thus highlighting a potential application of this methodology. PMID- 29025264 TI - B-N-B Bond Embedded Phenalenyl and Its Anions. AB - Despite the great potential of heteroatom-containing polycyclic aromatic hydrocarbons in organic optoelectronics, there are very limited reports on heteroaromatics containing a B-N-B bond in the pi-scaffold. Herein, stable 1,9 dibora-9a-azaphenalenyl (DBAP) derivatives, named BNB-embedded phenalenyls, are presented. The DBAP skeleton contains a three-center two-pi-electron B-N-B moiety with 12 pi-electrons and can be regarded as the isoelectronic structure of the phenalenyl cation. Chemical reduction of the phenyl derivative of DBAP by potassium generated the dianion containing 14 delocalized pi-electrons, which can be regarded as the isoelectronic structure of the phenalenyl anion. The dianion is sandwiched and stabilized by two bulky [K([18]crown-6)]+ counterions according to its X-ray structure. However, its monoanion (an isoelectronic structure of the henalenyl radical) generated by mixing equal moles of neutral compound and dianion gave an unusual B-N-B-embedded benzo[cd]fluoranthene dianion, which again was confirmed by X-ray crystallographic analysis. The new dianion containing 20 pi-electrons is highly aromatic and is further stabilized by [K([18]crown-6)]+ counterions. An aromaticity driven rearrangement mechanism was proposed for this unusual transformation. Based on X-ray structures and theoretical calculations, the B-N-B moiety in the neutral and anionic DBAP participates in the pi-electron delocalization along the whole DBAP skeleton like their phenalenyl cation/radical/anion counterparts, but with more localized character. Therefore, our studies report the first synthesis and characterization of a B-N-B-embedded phenalenyl and its anionic species, which show unique electronic structure and unusual reactivity different from that of their all-carbon phenalenyl analogues. PMID- 29025265 TI - Extending Our Reach for Greater Impact. PMID- 29025266 TI - The ABCs of Immunotherapy for Adult Patients With B-Cell Acute Lymphoblastic Leukemia. AB - OBJECTIVE: To review the pharmacology, efficacy, and safety of Food and Drug Administration approved and promising immunotherapy agents used in the treatment of acute lymphoblastic leukemia (ALL). DATA SOURCES: A literature search was performed of PubMed and MEDLINE databases (1950 to July 2017) and of abstracts from the American Society of Hematology and the American Society of Clinical Oncology. Searches were performed utilizing the following key terms: rituximab, blinatumomab, inotuzumab, ofatumumab, obinutuzumab, Blincyto, Rituxan, Gazyva, Arzerra, CAR T-cell, and chimeric antigen receptor (CAR). STUDY SELECTION/DATA EXTRACTION: Studies of pharmacology, clinical efficacy, and safety of rituximab, ofatumumab, obinutuzumab, inotuzumab, blinatumomab, and CAR T-cells in the treatment of adult patients with ALL were identified. DATA SYNTHESIS: Conventional chemotherapy has been the mainstay in the treatment of ALL, producing cure rates of approximately 90% in pediatrics, but it remains suboptimal in adult patients. As such, more effective consolidative modalities and novel therapies for relapsed/refractory disease are needed for adult patients with ALL. In recent years, anti-CD20 antibodies, blinatumomab, inotuzumab, and CD19-targeted CAR T-cells have drastically changed the treatment landscape of B cell ALL. CONCLUSION: Outcomes of patients with relapsed disease are improving thanks to new therapies such as blinatumomab, inotuzumab, and CAR T-cells. Although the efficacy of these therapies is impressive, they are not without toxicity, both physical and financial. The optimal sequencing of these therapies still remains a question. PMID- 29025267 TI - Direct Oral Anticoagulants in Cardioversion: A Review of Current Evidence. AB - OBJECTIVE: Direct oral anticoagulants (DOACs) are recommended for the prevention of stroke or systemic embolism in nonvalvular atrial fibrillation. Dabigatran, rivaroxaban, apixaban, and edoxaban represent possible alternatives to warfarin in the setting of cardioversion. A literature review was conducted to evaluate the safety and efficacy of DOAC use pericardioversion. DATA SOURCES: A PubMed and MEDLINE search through August 2017 was conducted using the following search terms alone or in various combinations: dabigatran, rivaroxaban, apixaban, edoxaban, betrixaban, DOAC, NOAC, TSOAC, cardioversion. STUDY SELECTION AND DATA EXTRACTION: All English-language, human studies comparing the safety and efficacy of DOACs with that of other anticoagulants in the setting of cardioversion were eligible for inclusion. References from published articles were reviewed for additional relevant citations for study inclusion. Four retrospective and 2 prospective trials comparing DOACs with warfarin were identified. DATA SYNTHESIS: The majority of studies included patients undergoing electric cardioversion. Based on current evidence, the DOACs perform similarly to warfarin in the prevention of stroke and systemic embolism, and bleeding rates are comparable. CONCLUSIONS: DOACs may be an attractive alternative to warfarin because of fast onset of action, potentially reducing delay to cardioversion. More robust studies are needed in patients with renal dysfunction and patients undergoing pharmacological cardioversion. PMID- 29025268 TI - Understanding persuasive attributes of sports betting advertisements: A conjoint analysis of selected elements. AB - Background and aims Despite recent growth in sports betting advertising, minimal research has examined the influence of different advertising message attributes on betting attitudes and behaviors. This study aimed to identify which attributes of sports betting advertisements most engage attention, interest, desire and likelihood of betting among non-problem, low-risk, moderate-risk, and problem gamblers. Methods A novel approach utilizing an experimental design incorporating conjoint analysis examined the effects of: three message formats (commentary, on screen display, and studio crossover); four appeals (neutral, jovial, ease of placing the bet, and sense of urgency); three types of presenters (match presenter, sports betting operator, and attractive non-expert female presenter); and four bet types (traditional, exotic key event, risk-free, and micro-bet). A professional film company using paid actors produced 20 mock television advertisements simulating typical gambling messages based on the conjoint approach. These were embedded into an online survey of 611 Australian adults. Results The most attention-grabbing attributes were type of presenter and type of bet. The attractive non-expert female presenter gained more attention from all gambler groups than other presenters. The type of bet was most persuasive in converting attention into likely betting among all gambler groups, with the risk free bet being much more persuasive than other bet types. Problem gamblers were distinct by their greater attraction to in-play micro-bets. Discussion and conclusion Given the potential for incentivized bets offering financial inducements and for in-play micro-bets to undermine harm minimization and consumer protection, regulators and wagering operators should reconsider whether these bet types are consistent with their responsible gambling objectives. PMID- 29025269 TI - Toward a qualitative understanding of binge-watching behaviors: A focus group approach. AB - Background and aims Binge-watching (i.e., seeing multiple episodes of the same TV series in a row) now constitutes a widespread phenomenon. However, little is known about the psychological factors underlying this behavior, as reflected by the paucity of available studies, most merely focusing on its potential harmfulness by applying the classic criteria used for other addictive disorders without exploring the uniqueness of binge-watching. This study thus aimed to take the opposite approach as a first step toward a genuine understanding of binge watching behaviors through a qualitative analysis of the phenomenological characteristics of TV series watching. Methods A focus group of regular TV series viewers (N = 7) was established to explore a wide range of aspects related to TV series watching (e.g., motives, viewing practices, and related behaviors). Results A content analysis identified binge-watching features across three dimensions: TV series watching motivations, TV series watching engagement, and structural characteristics of TV shows. Most participants acknowledged that TV series watching can become addictive, but they all agreed having trouble recognizing themselves as truly being an "addict." Although obvious connections could be established with substance addiction criteria and symptoms, such parallelism appeared to be insufficient, as several distinctive facets emerged (e.g., positive view, transient overinvolvement, context dependency, and low everyday life impact). Discussion and conclusion The research should go beyond the classic biomedical and psychological models of addictive behaviors to account for binge-watching in order to explore its specificities and generate the first steps toward an adequate theoretical rationale for these emerging problematic behaviors. PMID- 29025271 TI - Psychotropic drugs and CYP2D6 in late-life psychiatric and neurological disorders. What do we know? AB - INTRODUCTION: Late-life psychiatric and neurological disorders (LLPND) are interesting models to understand the potential role of pharmacogenetics in drug management, since several pharmacological approaches for treating LLPND have proven to be ineffective or deleterious, thus resulting in therapeutic failures (TF) and adverse drug reactions (ADR). Common variants in the genes encoding the cytochrome P450 (CYP) enzyme system, the 'engine room' of drug metabolism, together with well-known age-related increased polypharmacy also contributed to the prevalence of TF and ADR observed in these patients, also rising number and time of hospital readmissions and rate of institutionalizations. Areas covered: The genetics of CYP and how it may be used for the management of the outcomes of the most frequent drugs (antidepressants, antipsychotics, anticholinesterase inhibitors, and anxiolytics) used in LLPND. Expert opinion: Tailored CYP-based pharmacological treatments of LLPND will reduce TFs and ADRs, improving patient's life, reducing number and dosage of administered drugs, and the number and duration of hospital readmissions, saving costs for clinical management of LLPND. Pharmacokinetic interactions are less predictable than pharmacodynamic ones and several requests are made to regulatory organisms for the pharmacological management of frail older patients affected by LLPND. PMID- 29025272 TI - Gankyrin: a novel promising therapeutic target for hepatocellular carcinoma. AB - Hepatocellular carcinoma (HCC) is known as fifth common malignancies and third common cause of cancer-related death worldwide. The identification of various mechanisms which are involved in hepatocarcinogenesis contributes in finding a variety of cellular and molecular targets for HCC diagnosis, prevention and therapy. Among various identified targets in HCC pathogenesis, Gankyrin is a crucial oncoprotein that is up-regulated in HCC and plays a pivotal role in the initiation and progression of the HCC. Oncogenic role of Gankyrin has been found to stem from inhibition of two ubiquitous tumour suppressor proteins, retinoblastoma protein (pRb) and P53, and also modulation of several vital cellular signalling pathways including Wnt/beta-Catenin, NF-kappaB, STAT3/Akt, IL 1beta/IRAK-1 and RhoA/ROCK. As a result, Gankyrin can be considered as a potential candidate for diagnosis and treatment of HCC. In this review, we summarized the physiological function and the significant role of Gankyrin as an important therapeutic target in HCC. PMID- 29025270 TI - Design of a randomized clinical trial of a colorectal cancer screening decision aid to promote appropriate screening in community-dwelling older adults. AB - BACKGROUND: Appropriate colorectal cancer screening in older adults should be aligned with the likelihood of net benefit. In general, patient decision aids improve knowledge and values clarity, but in older adults, they may also help patients identify their individual likelihood of benefit and foster individualized decision-making. We report on the design of a randomized clinical trial to understand the effects of a patient decision aid on appropriate colorectal cancer screening. This report includes a description of the baseline characteristics of participants. METHODS: English-speaking primary care patients aged 70-84 years who were not currently up to date with screening were recruited into a randomized clinical trial comparing a tailored colorectal cancer screening decision aid with an attention control. The intervention group received a decision aid that included a values clarification exercise and individualized decision-making worksheet, while the control group received an educational pamphlet on safe driving behaviors. The primary outcome was appropriate screening at 6 months based on chart review. We used a composite measure to define appropriate screening as screening for participants in good health, a discussion about screening for patients in intermediate health, and no screening for patients in poor health. Health state was objectively determined using patients' Charlson Comorbidity Index score and age. RESULTS: A total of 14 practices in central North Carolina participated as part of a practice-based research network. In total, 424 patients were recruited to participate and completed a baseline visit. Overall, 79% of participants were White and 58% female, with a mean age of 76.8 years. Patient characteristics between groups were similar by age, gender, race, education, insurance coverage, or work status. Overall, 70% had some college education or more, 57% were married, and virtually all had Medicare insurance (90%). The three primary medical conditions among the cohort were a history of diabetes, pneumonia, and cancer (28%, 26%, and 21%, respectively). CONCLUSION: We designed a randomized clinical trial to test a novel use of a patient decision aid to promote appropriate colorectal cancer screening and have recruited a diverse study population that seems similar between the intervention and control groups. The study should be able to determine the ability of a patient decision aid to increase individualized and appropriate colorectal cancer screening. PMID- 29025274 TI - Overall survival in patients with glioblastoma before and after bevacizumab approval. AB - OBJECTIVE: Glioblastoma (GBM) is an aggressive disease with limited therapeutic options. While bevacizumab was approved in 2009 for the treatment of patients with progressive GBM, its impact on overall survival (OS) remains unclear. Using US population-based cancer registry data (SEER), this study compared OS of patients diagnosed with GBM before and after bevacizumab approval. METHODS: Adult patients from SEER with a GBM diagnosis were divided into two cohorts: patients diagnosed in 2006-2008 (pre-bevacizumab cohort, n = 6,120) and patients diagnosed in 2010-2012 (post-bevacizumab cohort, n = 6,753). Patients were included irrespective of the treatments received. OS post-diagnosis was compared between the study cohorts utilizing Kaplan-Meier analyses and multivariate Cox proportional hazards regression. RESULTS: Among 12,873 patients with GBM, the median age was 62 years, 41% were women, 31% underwent gross total resection, and 75% received radiation therapy. Survival was stable within the 2006-2008 period (median survival = 9 months for each year), but increased after year 2009 (median survival = 10 and 11 months for years 2010/2011 and 2012, respectively). The adjusted hazard of death was significantly lower in the post-bevacizumab approval cohort (hazard ratio = 0.91, p < .01). CONCLUSIONS: The results of this large population-based study suggested an improvement in OS among patients with a GBM diagnosis in 2010-2012 compared to 2006-2008. While the cause of this improvement cannot be proven in a retrospective analysis, the timing of the survival increase coincides with the approval of bevacizumab for the treatment of patients with progressive GBM, indicating a possible benefit of bevacizumab in this population. PMID- 29025273 TI - Higher frequencies of circulating ICOS+, IL-21+ T follicular helper cells and plasma cells in patients with new-onset membranous nephropathy. AB - BACKGROUND: T follicular helper (TFH) cells and B cells are known to regulate humoral immune responses. This study is aimed at examining the putative contribution of different subsets of circulating of TFH cells and B cells to membranous nephropathy (MN). METHODS: A total of 45 MN patients and 19 healthy controls (HCs) were examined for the number of TFH cells and B cells by flow cytometry. The level of 24-h urinary protein and eGFR were calculated, and the level of serum cytokines was examined. The potential association among these measures was analyzed. RESULTS: Compared to the HCs, MN patients had significantly higher numbers of circulating CD4+CXCR5+, CD4+CXCR5+ICOS+, CD4+CXCR5+CD154+, CD4+CXCR5+IL-21+, and CD4+CXCR5+CD28+ TFH cells, as well as IgD+CD27-CD19+ and CD138+CD19+ B cells. However, the number of IgD+CD27+CD19+ B cells was significantly lower in MN patients than in the HC. The levels of serum IL-21, IL-2, IL-4, IL-10, IL-17A, and IFN-gamma were significantly higher in MN patients than in the HC. Furthermore, the numbers of CD4+CXCR5+, CD4+CXCR5+ICOS+, CD4+CXCR5+CD154+, CD4+CXCR5+IL-21+, CD4+CXCR5+CD28+ TFH cells, CD138+CD19+ B cells, and the level of sera IL-21 were negatively correlated with the values of eGFR, but positively correlated with the levels of 24-h urinary proteins. Following treatment, the numbers of CD4+CXCR5+, CD4+CXCR5+ICOS+, CD4+CXCR5+CD154+, CD4+CXCR5+IL-21+, CD4+CXCR5+CD28+ TFH cells, CD138+CD19+ B cells, and the levels of IL-21 were significantly reduced. In contrast, IL-4 and IL-10 levels were noticeably increased after treatment. CONCLUSIONS: Data suggest that activated TFH and plasma cells may contribute to the pathogenesis of MN. PMID- 29025276 TI - Once-Daily Versus Twice-Daily Enoxaparin for the Treatment of Acute Venous Thromboembolism in Cancer Patients. AB - BACKGROUND: No randomized controlled trials have investigated enoxaparin once versus twice daily for venous thromboembolism (VTE) treatment in cancer patients. OBJECTIVE: To compare the safety and efficacy of enoxaparin 1 mg/kg twice daily versus enoxaparin 1.5 mg/kg/day for the treatment of acute VTE in cancer patients. METHODS: This was a single-center, retrospective, observational cohort study. Adults with active cancer and an acute VTE were included. The primary outcome evaluated was the incidence of clinically relevant (major and nonmajor) bleeding (CRB) within 30 days of enoxaparin initiation. Secondary outcomes included the incidence of CRB, thrombosis, and death at 30, 90, and 180 days. The study protocol was approved by the institutional review board. RESULTS: A total of 123 patients met inclusion criteria; 85 patients (69%) were treated with once daily and 38 patients (31%) with twice-daily enoxaparin. CRB was numerically higher at 30 days in the twice-daily enoxaparin group compared with the once daily group (5.3% vs 2.4%, P = 0.587). There was a nonsignificant higher incidence of CRB in the once-daily enoxaparin group compared with the twice-daily group at 90 days (8.3% vs 8%, P = 1.0) and 180 days (12.5% vs 7.1%, P = 1.0). The composite outcome of CRB, thrombosis, and death was higher at all time points with enoxaparin once daily. CONCLUSIONS: Lack of statistical power in this study precludes definitive conclusions. Clinicians may consider twice-daily enoxaparin because of potentially fewer adverse events but may be limited by patient preference and/or financial constraints. PMID- 29025275 TI - Complementary and Alternative Medicine Use in Minority and Medically Underserved Oncology Patients: Assessment and Implications. AB - INTRODUCTION: Complementary and alternative medicine (CAM) use in minority and medically underserved oncology patients is not well documented. We assessed knowledge and utilization of CAM in a sample of these patients receiving treatment at an urban community hospital. METHODS: Patients with cancer were interviewed using an electronic application that depicted specific CAM therapies. Patients were questioned on their knowledge and utilization of therapies, deterrents to use, and interest in using these therapies if they were made available. RESULTS: Patients (n = 165) reported a high awareness and use of CAM therapies. CAM use was highest for prayer (85%), relaxation (54%), special diet (29%), meditation (19%), and massage (18%). Patients' interest in using CAM was high for nearly all therapies. Lack of adequate knowledge and cost of use were reported as deterrents to use. Female patients reported higher use of aromatherapy relative to males (37.1% vs 19.4%, P = .02); those with higher education reported greater use of relaxation (60.8% vs 28.6%, P = .02); non Hispanics reported higher use of relaxation relative to Hispanics (63.5% vs 44.2%, P = .03), and African American patients reported higher use of relaxation relative to White patients (69.2% vs 50%, P = .03). CONCLUSIONS: CAM use in minority and medically underserved cancer patients is common, but not professionally guided; thus, concerns remain regarding its safe use. Our data underscore the importance of patient-physician dialogue regarding CAM use in this patient population, and interest in access to the medically guided integration of evidence-based CAM therapies. PMID- 29025278 TI - Angiogenic Growth Factors for Coronary Artery Disease: Current Status and Prospects. AB - Although there have been advances in coronary artery bypass grafting and percutaneous coronary intervention, some patients who have ischemic coronary artery disease (CAD) are ineligible for revascularization due to suboptimal anatomy. Cardiac angiogenesis is not only a physiological response to ischemia or hypoxia but also a potential target of therapeutic strategies. Preclinical studies have shown a great enthusiasm on therapeutic angiogenesis for ischemic CAD. However, the latest trials provided the limited evidence on its efficacy. This article aims to discuss the physiological process of angiogenesis, the characteristic of angiogenic growth factors, delivery system, and clinical and preclinical studies, which can provide a novel insight into the therapeutic angiogenesis for CAD. PMID- 29025277 TI - Clinical Analysis of Recurrence Patterns in Patients With Nasopharyngeal Carcinoma Treated With Intensity-Modulated Radiotherapy. AB - OBJECTIVE: To evaluate the characteristics and risk factors for locoregional recurrence in patients with nasopharyngeal carcinoma (NPC) treated with intensity modulated radiotherapy (IMRT). METHODS: The clinical diagnosis and treatment data of 195 patients with NPC treated with IMRT from March 2005 to May 2010 (including 9, 24, 70, and 92 cases of stage I, II, III, and IV disease, respectively, according to the 7th edition American Joint Committee on Cancer staging criteria) were retrospectively analyzed. The Kaplan-Meier method was used for survival analysis, and logistic regression was used to conduct univariate and multivariate analyses. RESULTS: The 5-year recurrence rate was 10.8%, and the 5-year local and regional recurrence rates were 8.7% and 3.4%, respectively. Multivariate analysis showed that the short axis of the cervical lymph nodes (>=3 cm) was an influencing factor for regional lymph node recurrence after IMRT. CONCLUSION: In field and high-dose region failures were the main patterns associated with local regional recurrence, and nasopharyngeal recurrence was most commonly detected. Newly diagnosed patients with large cervical lymph nodes (short diameter >=3 cm) should be carefully followed up considering regional lymph node recurrence. PMID- 29025279 TI - Fixation Techniques in Lower Extremity Syndesmotic Injuries. PMID- 29025281 TI - Understanding Treatment Adherence With the Health Belief Model in Children With Cystic Fibrosis. AB - OBJECTIVE: Children's health beliefs are significantly related to their adherence; however, pediatric literature has rarely tested health-related theories as a whole. The goal of the present study was to evaluate the use of the health belief model (HBM) in understanding children's adherence, both globally and to individual treatment components. METHOD: Thirty-three patient-parent dyads completed questionnaires regarding health beliefs and adherence to medical regimens. RESULTS: Multiple linear regressions found a significant relationship among the HBM variables and reports of global adherence for children and parents. For children, the HBM variables were significantly related to adherence to aerosol medications, aerosol antibiotics, metered dose inhalers, and vitamins. For parents, the HBM variables were significantly related to children's adherence to airway clearance, oral antibiotics, and vitamins. Paired sample t tests found children and parents had significantly discrepant heath beliefs. CONCLUSION: These findings provide further support for the HBM in evaluating pediatric adherence, with evidence that barriers and cues to action may be targets for early intervention. Future research using this model to identify a comprehensive way to assess, understand, and elicit change in the adherence to medical regimens for youth with chronic illness would be beneficial. PMID- 29025280 TI - Effects of prenatal PPAR-gamma agonist rosiglitazone exposure on rat hippocampus development in a time-dependent manner: A stereological and histopathological study. AB - Rosiglitazone is in the thiazolidinedione class of drugs used in the treatment of type 2 diabetes mellitus. It works as an insulin sensitizer by binding to the peroxisome proliferator-activated receptor gamma. We investigated the effects of prenatally administered rosiglitazone on pyramidal cell numbers and morphologies in the hippocampus at postnatal period using histochemical and stereological techniques, congenital morphological properties and the number of offspring in rats. Eighteen female rats were grouped into control (C), low-dose rosiglitazone (LDR) and high-dose rosiglitazone (HDR). LDR pregnant rats received 2 mg/kg/day of rosiglitazone via oral gavage during the first 16 days of the pregnancy. HDR rats received 5 mg/kg/day. The infants were grouped into newborn (NB), 4 week (4 W) and 12 week (12 W). A side from histopathologic and congenital assessments, stereological analyses were performed using the optical fractionator method. Congenital anomaly was not detected in any of the rosiglitazone treatment groups, and their number of offspring was similar to that of the C group. Stereological counts revealed a significant reduction in the number of hippocampal pyramidal cells in the C and LDR groups but not in the HDR group until birth to 12th week. When NB groups were compared, the number of pyramidal cells in the HDRNB group was less than those in the LDRNB and CNB groups. HDR affected apoptosis or the proliferation and maturation of progenitor cells to the pyramidal neuron during neurodevelopment in the hippocampus, whereas LDR did not adversely affect neuronal development and did not cause congenital anomalies. PMID- 29025282 TI - Clinical Outcomes Following an Open Gastrocnemius Recession Combined With an Endoscopic Plantar Fasciotomy. AB - : At present, there is a paucity of literature describing the clinical outcomes following a combined gastrocnemius recession and endoscopic plantar fasciotomy. The purpose of the present report is to describe our preliminary findings following a combined gastrocnemius recession and endoscopic plantar fasciotomy for the treatment of plantar fasciitis and gastrocnemius equinus recalcitrant to conservative therapy. Twenty-five consecutive ankles in 23 patients (age 51.2 +/- 12.5 years, 4 men) met the inclusion and exclusion criteria. The average follow up was 3.7 months. Compared across time, there were statistically significant improvements in pain, t(24) = 7.878, P < .001; dorsiflexion, t(24) = -6.125, P < .001; and eversion, t(23) = -3.610, P = .001. Plantar flexion and inversion remained similar across time ( P = .722 and P = .268, respectively). No statistically significant correlations were found between age and any of the postoperative outcome variables ( P >= .056) or body mass index and any of the postoperative outcome variables ( P >= .140). The authors believe that an isolated plantar fasciotomy alleviates symptoms in the majority of patients. When gastrocnemius equinus is also present, however, the authors advocate performing an open gastrocnemius recession as well. If the gastrocnemius pathology is not addressed, symptoms are likely to persist. The findings of the present report confirm the effectiveness of a combined gastrocnemius recession and endoscopic plantar fasciotomy to improve pain and range of motion. LEVELS OF EVIDENCE: Case series, Level IV: Retrospective. PMID- 29025283 TI - Translation, reliability, and clinical utility of the Melbourne Assessment 2. AB - OBJECTIVE: The aims were to (i) provide a German translation of the Melbourne Assessment 2 (MA2), a quantitative test to measure unilateral upper limb function in children with neurological disabilities and (ii) to evaluate its reliability and aspects of clinical utility. METHODS: After its translation into German and approval of the back translation by the original authors, the MA2 was performed and videotaped twice with 30 children with neuromotor disorders. For each participant, two raters scored the video of the first test for inter-rater reliability. To determine test-retest reliability, one rater additionally scored the video of the second test while the other rater repeated the scoring of the first video to evaluate intra-rater reliability. Time needed for rater training, test administration, and scoring was recorded. RESULTS: The four subscale scores showed excellent intra-, inter-rater, and test-retest reliability with intraclass correlation coefficients of 0.90-1.00 (95%-confidence intervals 0.78-1.00). Score items revealed substantial to almost perfect intra-rater reliability (weighted kappa kw = 0.66-1.00) for the more affected side. Score item inter-rater and test retest reliability of the same extremity were, with one exception, moderate to almost perfect (kw = 0.42-0.97; kw = 0.40-0.89). Furthermore, the MA2 was feasible and acceptable for patients and clinicians. CONCLUSIONS: The MA2 showed excellent subscale and moderate to almost perfect score item reliability. Implications for Rehabilitation There is a lack of high-quality studies about psychometric properties of upper limb measurement tools in the neuropediatric population. The Melbourne Assessment 2 is a promising tool for reliable measurement of unilateral upper limb movement quality in the neuropediatric population. The Melbourne Assessment 2 is acceptable and practicable to therapists and patients for routine use in clinical care. PMID- 29025284 TI - Relationship of Aortic Wall Distensibility to Mitral and Aortic Valve Calcification: The Multi-Ethnic Study of Atherosclerosis. AB - Data are limited on whether valvular calcification is associated with aortic wall stiffness. We tested whether aortic valve calcification (AVC) and/or mitral valve calcification (MVC) is inversely associated with aortic distensibility (AD). Cross-sectional study conducted in a subset of the Multi-Ethnic Study of Atherosclerosis (MESA) included 3676 MESA participants aged 44 to 84 years with AD measured with magnetic resonance imaging and with AVC and MVC measured with noncontrast cardiac computed tomography scans. Both AVC and MVC were divided into 3 categories: zero, < median values (low), and >= median values (high) for patients with nonzero values. Overall, 88% (n = 3256) and 92% (n = 3365) of participants had zero AVC and MVC, while 6% (n = 211) and 4% (n = 156) had low, and 6% (n = 209) and 4% (n = 155) had high values of AVC and MVC, respectively. The AVC was independently associated with AD after adjusting for age, gender, and ethnicity ( P = .035). No association was noted between AVC groups and AD after adjustment for all covariates or MVC groups and AD in any model. PMID- 29025285 TI - Safety and efficacy of canagliflozin in elderly patients with type 2 diabetes mellitus: a 1-year post-marketing surveillance in Japan. AB - OBJECTIVE: To evaluate the safety and efficacy of canagliflozin in elderly patients with type 2 diabetes mellitus (T2DM) in clinical settings. METHODS: The authors conducted a 1-year post-marketing surveillance (PMS) of canagliflozin in almost all the elderly patients (>=65 years old) with T2DM who began taking canagliflozin during the first 3 months after its launch in Japan. The main outcomes included the incidences of adverse drug reactions (ADRs), serious ADRs, and the changes of laboratory tests as well as efficacy variables. RESULTS: An ADR was reported in 9.09% (125 of 1375 patients) in the safety analysis set. The main ADRs were dehydration, constipation, thirst, pollakiuria, dizziness, cystitis, eczema, pruritus, and rash. The incidence of serious ADRs was 1.02% (14 patients), which included urinary tract infection, dehydration, hypoglycemia, and cerebral infarction (two patients each). ADRs of special interest that had been reported in clinical trials of SGLT2 inhibitors, such as hypoglycemia, volume depletion-related events, genital/urinary tract infection, polyuria/pollakiuria, and ketone body increased were also observed in this PMS. The safety profiles were similar to the results of a previous clinical study of canagliflozin, and new safety concerns were not identified in this survey. The mean change in HbA1c was -0.77% after 12 months of treatment in the efficacy analysis set. CONCLUSION: In this PMS, the safety and efficacy profiles of canagliflozin in elderly patients with T2DM were obtained in the clinical settings in Japan and the drug was well tolerated and effective in improving glycemic control. PMID- 29025286 TI - [Thalidomide therapy in relapsed diffuse large B-cell lymphoma in elderly patients. Three cases]. AB - Diffuse large B-cell lymphoma (DLBCL), a high-grade lymphoproliferative disease, is the most common lymphoma in adults, representing 31% of non-Hodgkin lymphomas (NHL). In elderly patients treatment is problematic because of the high toxicity of standard chemotherapy protocols, especially in relapsed cases, where high-dose chemotherapy and haematopoietic stem cell transplantation would be the best choice. More and more data is becoming available on alternative treatment of refractory/relapsed NHL, including studies on the positive effect of thalidomide and second generation IMiDs in DLBCL, which are already part of the standard treatment protocol in myeloma multiplex and myelodysplasia. The broadening use of IMiDs is due to their anti-angiogenetic, immunmodulatory and anti-inflammatory properties. In addition, a component of the E3-ubiquitin ligase complex, named cereblon, has been described in 2010 as the molecular effector of the thalidomide signal transduction pathway. We initiated thalidomide treatment in three elderly patients with relapsed DLBCL. In two cases, patients had CNS involvement, in the third case the patient had primary mediastinal disease. Patients received 100 mg thalidomide in combination with corticosteroids. Two patients showed an excellent response reaching complete remission on imaging; these patients are progression free 12 and 20 months after the beginning of treatment. One patient with CNS involvement progressed and deceased despite therapy. According to the literature, IMiDs have significant activity in relapsed DLBCL. Our case-report presents promising results in an elderly patient population with aggressive relapsed NHL that usually has very poor outcome, as high-toxicity treatment cannot be given to these patients. Consequently, because of its efficiency, low-cost and low toxicity, it is recommended to consider thalidomide therapy in elderly patients with high-grade DLBCL. Orv Hetil. 2017; 158(41): 1642-1648. PMID- 29025287 TI - [Incidence and treatment of extranodal natural killer/T-cell lymphoma nasal type. Hungarian experiences]. AB - INTRODUCTION: Extranodal natural killer/T (NK/T) cell lymphoma, nasal type (ENKTL) represents a rare subtype of T-cell lymphomas with aggressive clinical behavior according to WHO 2016 classification. AIM: ENKTL has distinctive geographic distribution with higher incidence in Asia and Latin America (10% of all non-Hodgkin lymphoma cases), than in Europe and North America (<1%). ENKTL tipically origins from nasopharynx and upper aerodigestive tract. Anthracycline based chemotherapy regimens are largely ineffective in the treatment of ENKTL. METHOD: Our aims were to evaluate the incidence and treatment strategies of ENKTL patients in Hungarian Haematological Centres between 2003 and 2015. Altogether 20 patients with ENKTL were treated in the 4 haematological hospitals (male:female ratio 12:8, with median 49.5 years of age). RESULTS: Ten patients had localized (stage I-II) disease at the time of the diagnosis. Seventeen patients were treated with chemotherapy (11/CHOP, CHOP-like, 2/HyperCVAD, 1/ProMACECytaBom, 1/SMILE, 2/others), which was completed with involved-field radiation therapy (IFRT) (40-46 Gy) in 6 cases were used. After first-line therapy 9 patients achieved complete remission (CR), 3 patients had partial remission (PR), 3 patients had progressive disease (PD), and 2 patients had stable disease (SD). Median follow-up was 32 (3-113) months. Five patients received second-line therapy for progressive or recurrent disease [2/DHAP, 1/VIM, 1/HyperCVAD, 1/ProMACECytaBom]. None of the patients achieved CR after second-line therapy. Two patients have undergone autologous hematopoietic stem cell transplantation (HSCT) after the first CR. CONCLUSION: ENKTL treatment is more effective with nonanthracycline-containing regimens. L-asparaginase containing chemotherapy and concurrent or sequential chemo-radiotherapy improves survival and CR rates. Orv Hetil. 2017; 158(41): 1635-1641. PMID- 29025288 TI - [State of the art molecular diagnostics and therapy of chronic lymphocytic leukaemia in the era of new targeted therapies]. AB - Chronic lymphoid leukaemia (CLL) has a heterogeneous clinical course depending on many clinical and molecular prognostic markers, which play an important role in the selection of the best treatment option. So far, TP53 disruption is the key prognostic and predictive factor assisting treatment decisions, especially in the era of novel therapies. Asymptomatic patients in early stages of the disease will still benefit from watchful waiting. In the frontline setting, chemoimmunotherapy is still the standard care in the majority of standard risk CLL patients. New classes of drugs like kinase inhibitors and BCL-2 inhibitors (ibrutinib, idelalisib and venetoclax) are the treatment of choice in CLL patients with relapsed/refractory disease, with the exception of high risk disease, where the optimal treatment is frontline ibrutinib monotherapy. In the near future, integrating next generation sequencing into the routine diagnostics would help the development of individual CLL patient management and to choose an optimal treatment strategy. Orv Hetil. 2017; 158(41): 1620-1629. PMID- 29025290 TI - [Editor's commentary]. PMID- 29025289 TI - [The role of autologous hemopoietic stem cell transplantation in T-cell lymphoma. Hungarian data]. AB - T-cell lymphoma is a poor prognostic hematological malignancy. The generally used - not sufficiently effective - induction chemotherapy should be improved with consolidative autologous hemopoetic stem cell transplantation. The authors describe the role, place and effectiveness of transplantation in this disorder. One hundred thirty three autologous stem cell transplantations were performed in the last 22 years in Hungary. Detailed results are available from the last 6 years. In this period 43 transplantations were carried out in 4 Hungarian centers. Carmustine-etoposide-cytosine arabinoside-melphalan (BEAM) conditioning regimen was used in 95%. The transplantation was done mainly in complete remission (84%), 1 year after transplantation 65% of patients were still in complete remission. Eleven patients died, 82% of them have progressive disease. Brentuximab vedotin has already proved the effectiveness, several other chemoterapeutics, monoclonal antibodies, kinase inhibitors are under investigation. In certain cases allogeneic stem cell transplantation has real indication among therapeutic options. Orv Hetil. 2017; 158(41): 1615-1619. PMID- 29025291 TI - [Waldenstrom's macroglobulinemia and its individualized therapy options]. AB - Waldenstrom's macroglobulinaemia is a form of lymphoplasmocytic lymphoma that preferentially localizes to the bone marrow and causes a special syndrome characterized by monoclonal IgM hypersecretion. Recent results point to the fact that this disease has at least three different pathobiological forms with different clinical presentation. While mutations of MYD88 occur in 95-97% of the cases, there are CXCR4 mutations in 30-40%, ARID1A mutations in 17% and CD79B mutations in approximately 10% of afflicted individuals. CXCR pathway signaling is able to transcriptionally silence tumor suppressors induced by MYD88 activation. Patients with mutated MYD88 and CXCR4 present with higher tumor burden, slower developing and less deep response upon therapy with more frequent resistance. In this review, based on the most recent data, a treatment selection advice is provided for the therapy of symptomatic patients. Orv Hetil. 2017; 158(41): 1604-1614. PMID- 29025292 TI - [Brentuximab vedotin treatment in patients with relapsed or refractory Hodgkin lymphoma. A Hungarian retrospective study]. AB - INTRODUCTION: The treatment of relapsed or refractory Hodgkin lymphoma is still a major therapeutic challenge. The use of brentuximab vedotin, an anti-CD30 antibody-drug conjugate, represents a promising approach for these patients, however clinical outcomes have not yet been evaluated in Hungary. AIM: Our aim was to assess the efficacy, safety and outcome of brentuximab vedotin treatment in Hungarian Hodgkin lymphoma patients. METHOD: In this retrospective case note review we enrolled patients at 6 clinical sites countrywide who were diagnosed with Hodgkin lymphoma and received brentuximab vedotin between 1 January 2013 and 31 December 2016. RESULTS: A total of 86 patients were treated with brentuximab vedotin during the examined period. Before therapy initiation 66% of our patients had advanced-stage disease. Overall response rate to brentuximab vedotin, administered before autologous hematopoietic stem cell transplantation (n = 54) was 66.6%, complete remission rate was 42.6%. Thirty patients received brentuximab vedotin after AHSCT, 46.67% responded to treatment, 30% achieved complete remission. Thirty-six patients received the drug as a single-agent therapy, 50 patients were given brentuximab vedotin in combination, 39 of them with bendamustin. Toxicity was observed only in 13.95% of our patients, most common symptom was skin rash. Based on our analysis the estimated 5-year overall survival rate was 78.7%, the estimated progression free survival rate was 23.59 months (95% CI: 19.50-27.68). CONCLUSION: Brentuximab vedotin carries a substantial improvement in the treatment of relapsed or refractory Hodgkin lymphoma. Our results underline prior observations published in the literature. The use of brentuximab vedotin in combination can be beneficial, however further investigation is needed on the subject. Orv Hetil. 2017; 158(41): 1630-1634. PMID- 29025293 TI - Berberine Induces Apoptotic Cell Death via Activation of Caspase-3 and -8 in HL 60 Human Leukemia Cells: Nuclear Localization and Structure-Activity Relationships. AB - Berberine (BBR), an isoquinoline alkaloid, is a well-known bioactive compound contained in medicinal plants used in traditional and folk medicines. In this study, we investigated the subcellular localization and the apoptotic mechanisms of BBR were elucidated. First, we confirmed the incorporation of BBR into the cell visually. BBR showed antiproliferative activity and promptly localized to the nucleus from 5[Formula: see text]min to 15[Formula: see text]min after BBR treatment in HL-60 human promyelocytic leukemia cells. Next, we examined the antiproliferative activity of BBR (1) and its biosynthetically related compounds (2-7) in HL-60 cells. BBR exerted strongest antiproliferative activity among 1-7 and the results of structures and activity relation suggested that a methylenedioxyl group in ring A, an [Formula: see text]-alkyl group at C-9 position, and the frame of isoquinoline may be necessary for antiproliferative activity. Moreover, BBR showed the most potent antiproliferative activity in HL 60 cells among human cancer and normal cell lines tested. Next, we examined the effect of BBR on molecular events known as apoptosis induction. In HL-60 cells, BBR induced chromatin condensation and DNA fragmentation, and triggered the activation of PARP, caspase-3 and caspase-8 without the activation of caspase-9. BBR-induced DNA fragmentation was abolished by pretreatment with inhibitors against caspase-3 and caspase-8, but not against caspase-9. ERK and p38 were promptly phosphorylated after 15 min of BBR treatment, and this was correlated with time of localization to the nucleus of BBR. These results demonstrated that BBR translocated into nucleus immediately after treatments and induced apoptotic cell death by activation of caspase-3 and caspase-8. PMID- 29025294 TI - The role of the ipsilesional side in the rehabilitation of post-stroke subjects. AB - Most stroke lesions occur in the middle cerebral artery territory, presenting a high probability of damage of pathways with predominant ipsilesional disposition, mainly related to postural control. Despite the high probability of bilateral postural control dysfunction based on neuroanatomical fundaments, both research and clinical rehabilitation involving stroke subjects have been focused on contralesional side (also named affected side) impairments, while ipsilesional side (also named non-affected side) impairments have been attributed to an adaptive strategy. This paper aims to present a critical understanding about the state-of-the-art that sustains the hypothesis that stroke subjects with middle cerebral artery territory lesion at the subcortical level show an atypical behaviour in the ipsilateral side associated with the lesion itself and the possible implications. PMID- 29025295 TI - Ultrasonography-guided percutaneous microwave ablation for large hepatic cavernous haemangiomas. AB - PURPOSE: To evaluate the efficacy and safety of ultrasound-guided percutaneous microwave ablation (MWA) for large hepatic cavernous haemangiomas (HCHs) with ablation of the feeding artery and aspiration of blood from haemangioma simultaneously. MATERIALS AND METHODS: From January 2011 to December 2016, 40 patients (29 females, 11male; average age 43.25 +/- 7.65 years) with 42 giant hepatic haemangiomas (mean diameter 7.02 +/- 1.55 cm, range 4.1-10.8 cm) were treated with image-guided percutaneous MWA with ablation of the feeding artery and aspiration of blood from haemangioma simultaneously. After MWA, therapeutic efficacy was assessed by contrast-enhanced imaging during follow-up. Median follow-up time was 24 months (range 6-60 months). RESULTS: Technical effectiveness rate was 100% with a mean ablation time of 1175 +/- 516 (range 480 2340) seconds. The mean number of antenna insertions was 3.82 +/- 1.23 for each lesion. Clinical effectiveness rate was 95% (38/40). There was a significant decrease of the tumour volume within three days after ablation compared with before ablation (p < 0.001). The mean tumour volume shrinkage rate was 59.67 +/- 16.73% (range 28.20-89.72%) within three days after ablation. Minor complications mainly included fever, transient elevation of transaminase, pleura effusion, and haemoglobinuria. One patient developed a major complication with acute kidney injury (AKI) shortly after MWA, whose renal function gradually recovered after haemodialysis. No other severe complications occurred in perioperative and follow up periods. CONCLUSIONS: Ultrasound-guided percutaneous MWA for large HCHs with ablation of the feeding artery and aspiration of blood from haemangioma simultaneously is safe and effective. PMID- 29025296 TI - Comment on: Twelve tips for teaching brief motivational interviewing to medical students. PMID- 29025297 TI - Liver Transplantation in Patients With Cardiac Disease. AB - Liver transplantation (LT) is a unique surgical procedure that has major hemodynamic and cardiovascular implications. Recently, there has been significant interest focused on cardiovascular issues that affect LT patients in all phases of the perioperative period. The preoperative cardiac evaluation is a major step in the selection of LT candidates. LT candidates are aging in concordance with the general population; cardiovascular disease and their risk factors are highly associated with older age. Underlying cardiovascular disease has the potential to affect outcomes in LT patients and has a major impact on candidate selection. The prolonged hemodynamic and metabolic instability during LT may contribute to adverse outcomes, especially in patients with underlying cardiovascular disease. Cardiovascular events are not unusual during LT; transplant anesthesiologists must be prepared for these events. Advanced cardiovascular monitoring techniques and treatment modalities are now routinely used during LT. Postoperative cardiovascular complications are common in both the early and late posttransplant periods. The impact of cardiac complications on posttransplant mortality is well recognized. Emerging knowledge regarding cardiovascular disease in LT patients and its impact on posttransplant outcomes will have an important role in guiding the future perioperative management of LT patients. PMID- 29025298 TI - Twelve tips for using applied improvisation in medical education. AB - Future physicians will practice medicine in a more complex environment than ever, where skills of interpersonal communication, collaboration and adaptability to change are critical. Applied improvisation (or AI) is an instructional strategy which adapts the concepts of improvisational theater to teach these types of complex skills in other contexts. Unique to AI is its very active teaching approach, adapting theater games to help learners meet curricular objectives. In medical education, AI is particularly helpful when attempting to build students' comfort with and skills in complex, interpersonal behaviors such as effective listening, person-centeredness, teamwork and communication. This article draws on current evidence and the authors' experiences to present best practices for incorporating AI into teaching medicine. These practical tips help faculty new to AI get started by establishing goals, choosing appropriate games, understanding effective debriefing, considering evaluation strategies and managing resistance within the context of medical education. PMID- 29025299 TI - Simple Decision-Analytic Functions of the AUC for Ruling Out a Risk Prediction Model and an Added Predictor. AB - BACKGROUND: When using risk prediction models, an important consideration is weighing performance against the cost (monetary and harms) of ascertaining predictors. METHODS: The minimum test tradeoff (MTT) for ruling out a model is the minimum number of all-predictor ascertainments per correct prediction to yield a positive overall expected utility. The MTT for ruling out an added predictor is the minimum number of added-predictor ascertainments per correct prediction to yield a positive overall expected utility. RESULTS: An approximation to the MTT for ruling out a model is 1/[P (H(AUCmodel)], where H(AUC) = AUC - {1/2 (1-AUC)}1/2, AUC is the area under the receiver operating characteristic (ROC) curve, and P is the probability of the predicted event in the target population. An approximation to the MTT for ruling out an added predictor is 1 /[P {(H(AUCModel:2) - H(AUCModel:1 )], where Model 2 includes an added predictor relative to Model 1. LIMITATION: The latter approximation requires the Tangent Condition that the true positive rate at the point on the ROC curve with a slope of 1 is larger for Model 2 than Model 1. CONCLUSION: These approximations are suitable for back-of-the-envelope calculations. For example, in a study predicting the risk of invasive breast cancer, Model 2 adds to the predictors in Model 1 a set of 7 single nucleotide polymorphisms (SNPs). Based on the AUCs and the Tangent Condition, an MTT of 7200 was computed, which indicates that 7200 sets of SNPs are needed for every correct prediction of breast cancer to yield a positive overall expected utility. If ascertaining the SNPs costs $500, this MTT suggests that SNP ascertainment is not likely worthwhile for this risk prediction. PMID- 29025301 TI - Identifying and removing overlaps from adjacent components is important in investigations of C1 modulation by attention. AB - During recent years, perceptual/attentional load paradigms have been frequently used to investigate whether the initial visual cortical processing can be modified by spatial attention. For example, Rauss and colleagues reported significant modulations of the earliest component (i.e. the C1) of the visual evoked potential (VEP) as a function of attentional load. It may be questioned, however, whether these load effects represent modulations of the C1 or overlaps from other components. Here we summarize some methods to identify and remove the overlaps, which is important to clarify the question of whether the initial visual cortical processing could be modulated by attention. PMID- 29025300 TI - Levels and patterns of internal migration in Europe: A cohort perspective. AB - Europe displays important variations in the level of internal migration, with a clear spatial gradient of high mobility in northern and western Europe but lower mobility in the south and east. However, cross-national variation in levels of internal migration remains poorly understood, because it is analysed almost exclusively using cross-sectional data and period measures. This paper seeks to advance understanding of cross-national variation in migration levels in 14 European countries by drawing on a recently proposed suite of migration cohort measures, coupled with internationally comparable retrospective residential histories. It shows that differences in migration levels are mainly attributable to variation in the extent of repeat movement, which is underpinned by the differences in mean ages at first and last move that together delineate the average length of migration careers. Cohort analysis provides a robust foundation for exploring the demographic mechanisms underpinning variation in migration levels across countries and over time. PMID- 29025302 TI - Medical student healthcare consulting groups: A novel way to train the next generation of physician-executives. AB - Meeting the challenges of the evolving healthcare environment requires leadership of physicians well-trained in clinical medicine and healthcare management. However, many physicians lack training in business and leadership. While some residency programs have management tracks, training at the medical school level is currently lacking. We developed the Hopkins Health Management Advisory Group, an extracurricular program at Johns Hopkins University School of Medicine that exposes medical students to healthcare management and fosters development of leadership skills. Teams of students work directly with health system executives on 3-6 month-long projects using management consulting principles to address problems spanning health system domains, including strategy, operations, and quality improvement. Since the program's inception, 23 students have completed seven projects, with 13 additional students currently working on three more projects. Sponsors leading six out of seven completed projects have implemented recommendations. Qualitative survey respondents have found the program beneficial, with students frequently describing how the program has helped to develop professional skills and foster knowledge about healthcare management. These early assessments show positive impact for both students and the institution, and suggest that such programs can train students in management early and concurrently in their medication education by immersing them in team based health system projects. PMID- 29025303 TI - Serum surfactant protein D as a marker for bronchopulmonary dysplasia. AB - BACKGROUND: Lung epithelial cells express surfactant protein D (SP-D), a calcium dependent lectin that plays an important role in antibody-independent pulmonary host defense. Previous studies have shown that it is found in the peripheral circulation in patients with pulmonary disease, likely because of translocation into the blood when lung epithelial barriers are disrupted by inflammation or acute injury. In adults, serum SP-D levels are biomarkers for the progression and severity of chronic lung disease. In neonates, elevated SP-D levels in cord blood and on day 1 have been associated with prenatal risk factors and with an increased risk of respiratory distress syndrome and infections. It is not known whether serum SP-D during the first week of life is a marker for bronchopulmonary dysplasia (BPD), a form of chronic lung disease of prematurity that is associated with lung parenchymal maldevelopment and injury. OBJECTIVE: The goal of this study is to determine whether serum SP-D on days 3 and 7 of life are associated with the development of BPD in preterm infants. DESIGN/METHODS: Serum samples were obtained on postnatal days 3 and 7 from 106 preterm infants (500-2000 g birth weight, 23-32-week gestation). SP-D was quantified by Western blot. BPD was determined at 36 weeks PMA using NICHD criteria. RESULTS: The mean birth weight was 1145 +/- 347 g and gestational age 29.2 +/- 7.4 weeks. BPD was diagnosed in 7 and "BPD or death" in 16 infants. Days 3 and 7 values tracked significantly (r = 0.648), and did not correlate with birth weight or gestational age. Contrary to expectations, serum SP-D was not associated with BPD. Significant gender differences were noted, with SP-D dropping from day 3 to day 7 in males, while increasing in females (p < .05). CONCLUSION: Elevated serum SP-D does not appear to be a useful marker for BPD. Decreasing serum SP-D levels in males, as compared to females, during the first week of life are likely related to gender differences in lung maturation, consistent with the higher incidence of BPD in males. PMID- 29025319 TI - The effects of Salvia przewalskii total phenolic acid extract on immune complex glomerulonephritis. AB - CONTEXT: Salvia przewalskii Maxim. (Lamiaceae) is a Chinese herbal medicine that has long been used for the treatment of cardiovascular disease. OBJECTIVE: The study investigated the therapeutic efficacy of S. przewalskii total phenolic acid extract (SPE) on immune complex glomerulonephritis (ICG) in rats. MATERIALS AND METHODS: Sixty-two Wistar rats were randomized into six groups. ICG was induced in all groups except normal control group. SPE was administered intragastrically at 24 h intervals for 40 consecutive days. Urine protein (UP), total serum protein (TSP), serum albumin (SA), serum cholesterol (SC) and serum urea nitrogen (SUN) were measured one day before, on day 20 and 40 after SPE administration. On day 40 after SPE administration, the kidneys were removed and prepared into pathologic sections. In addition, kidney wet mass was measured for calculating the kidney wet mass coefficient (KWMC). RESULTS: UP excretion was reduced significantly on day 20 after SPE administration in all three SPE groups as compared with that in medium group, and this effect was observable continuously until 40 days after SPE administration. Compared with medium group, TSP and SA were increased in all three SPE groups after 40 days treatment, while SC and SUN were decreased. KWMC was decreased significantly in 100 mg/kg SPE group after 40 days treatment compared with that in medium group. Histopathologic analyses showed that renal inflammatory infiltration and kidney intumesce were alleviated in all three SPE groups. CONCLUSIONS: SPE may be a potential therapeutic drug for glomerulonephritis. PMID- 29025320 TI - Efficacy of itraconazole oral solution using an alternating-week pulse therapy regimen for treatment of cats with experimental Microsporum canis infection. AB - Objectives The objective of this study was to evaluate itraconazole 10 mg/ml oral solution for the treatment of Microsporum canis infection using an alternating week pulse therapy regimen in a controlled laboratory setting. Methods Eighty cats with experimentally induced infections were randomly assigned to treatment (itraconazole vs control [sterile water]), administered 5 mg/kg PO q24h for 1 week on alternate weeks for 5 weeks, followed by a 4 week follow-up period. Topical therapeutic treatment was not administered. Cats were individually housed in stainless steel cages that were cleaned and disinfected daily. Study measures included weekly fungal cultures, clinical lesion scores, Wood's lamp examination and periodic laboratory monitoring. Mycological cure was defined as two consecutive negative cultures. Results Itraconazole-treated cats had significantly greater ( P = 0.0003) mycological cure compared with untreated controls (24/40 [60%] vs 1/40 [2.5%], respectively) and all of these reached clinical cure and had negative final Wood's lamp examinations. Furthermore, 36/40 (90%) treated cats had at least one negative fungal culture by the end of the study vs only 3/40 (7.5%) control cats. For both treatment groups, prevalence of clinical cure peaked at the end of the study (week 9), with 39/40 (97.5%) itraconazole-treated cats and 6/40 (15%) control cats achieving clinical cure. Wood's lamp negative examination rates were significantly greater ( P <0.0001) for itraconazole-treated cats compared with controls (39/40 cats [97.5%] vs 6/40 [15%], respectively) and followed the same pattern of improvement as primary clinical lesions. Conclusions and relevance In this controlled study, orally administered itraconazole using a 5 mg/kg pulse-dose treatment regimen reduced the time to mycological cure and increased both mycological and clinical cure rates compared with untreated controls. PMID- 29025322 TI - Auditory and cognitive development in a partially deaf child with bilateral electro-acoustic stimulation: a case study. AB - OBJECTIVE: To study the long-term evolution of speech and intelligence in a child with partial deafness and normal hearing in the low frequencies after sequentially receiving cochlear implants in both ears. DESIGN: Retrospective chart review. STUDY SAMPLE: Male child aged 6 years was followed over a time period of four years. RESULTS: The paediatric patient had normal hearing up to 1 kHz and profound hearing loss at all higher frequencies symmetrical in both ears. Deprivation of high-frequency sounds resulted in retarded development of speech, language and cognitive skills. The choice for rehabilitation was cochlear implantation with the aim of preserving a considerable amount of low-frequency hearing. With natural hearing at low frequencies and electrical stimulation at high frequencies, the child was able to compensate most of his developmental deficits. Moreover, spatial hearing was almost normal. CONCLUSIONS: Electro natural stimulation without amplification of the low frequencies (electro-natural hearing) provides access to the whole audible frequency range for children, who suffer from partial deafness in the high frequencies and are normal hearing at low frequencies. Such provision allows for regular speech development and favours the development of spatial hearing. The case report also demonstrates a strong impact on intellectual performance. PMID- 29025321 TI - Rutin ameliorates oxidative stress and preserves hepatic and renal functions following exposure to cadmium and ethanol. AB - CONTEXT: Rutin (RUT) is an antioxidant flavonoid with well-known metal chelating potentials. OBJECTIVE: This study was designed to evaluate the protective effects of RUT against cadmium (Cd) + ethanol (EtOH)-induced hepatic and renal toxicity in rats. MATERIALS AND METHODS: Wistar rats were treated with Cd (50 mg/kg) alone or in combination with EtOH (5 mg/kg) and RUT (25, 50 and 100 mg/kg) for 15 days. After treatment, the liver, kidney and serum were removed for biochemical assays by spectrophotometric methods. RESULTS: Serum, hepatic and renal malondialdehyde (MDA) levels were highest in the Cd + EtOH group and lowest in Cd + EtOH animals co-treated with the highest dose of RUT (2.98 +/- 0.34, 10.08 +/- 2.32, 4.99 +/- 1.21 vs. 1.69 +/- 0.33, 6.13 +/- 0.28, 3.66 +/- 1.12 MUmol MDA/mg protein, respectively). The serum level of Cd was increased in the Cd + EtOH treated animals compared to Cd + EtOH animals co-treated with 100 mg/kg RUT (2.54 +/- 0.08 vs. 1.28 +/- 0.04 ppm). Furthermore, RUT at the highest dose protected against Cd + EtOH-induced elevation of bilirubin and uric acid levels as well as activities of lactate dehydrogenase and gamma-glutamyl transferase (62.86 +/- 2.74 vs. 122.52 +/- 6.35 umol/L; 1.77 +/- 0.35 vs. 3.23 +/- 0.55 mmol/L; 9.56 +/- 1.22 vs. 16.21 +/- 1.64 U/L; 288.92 +/- 40.12 vs. 159.8 +/- 18.01 U/L). The histo pathological changes in the liver and kidney were also reduced in the Cd + EtOH animals co-treated with RUT in a dose-dependent manner. DISCUSSION AND CONCLUSION: RUT protected against the combined effects of Cd + EtOH on hepatic and renal functions and improved the antioxidant defence system in the blood. PMID- 29025323 TI - Cardiovascular Autonomic Responses in the VCD Rat Model of Menopause: Effects of Short- and Long-Term Ovarian Failure. AB - After menopause, hypertension elevates the risk of cardiac diseases, one of the major causes of women's morbidity. The gradual depletion of ovarian follicles in rats, induced by 4-vinylcyclohexene diepoxide (VCD), is a model for studying the physiology of menopause. 4-Vinylcyclohexene diepoxide treatment leads to early ovarian failure (OF) and a hormonal profile comparable to menopause in humans. We have hypothesized that OF can compromise the balance between sympathetic and parasympathetic tones of the cardiovascular system, shifting toward dominance of the former. We aimed to study the autonomic modulation of heart and blood vessels and the cardiovascular reflexes in rats presenting short-term (80 days) or long term (180 days) OF induced by VCD. Twenty-eight-day-old Wistar rats were submitted to VCD treatment (160 mg/kg, intraperitoneally) or vehicle (control) for 15 consecutive days and experiments were conducted at 80 or 180 days after the onset of treatment. Long-term OF led to an increase in the sympathetic activity to blood vessels and an impairment in the baroreflex control of the heart, evoked by physiological changes in arterial pressure. Despite that, long term OF did not cause hypertension during the 180 days of exposure. Short-term OF did not cause any deleterious effect on the cardiovascular parameters analyzed. These data indicate that long-term OF does not disrupt the maintenance of arterial pressure homeostasis in rats but worsens the autonomic cardiovascular control. In turn, this can lead to cardiovascular complications, especially when associated with the aging process seen during human menopause. PMID- 29025324 TI - The effects of head-cooling on brain function during passive hyperthermia: an fMRI study. AB - PURPOSE: To investigate the effect of head-cooling on resting-state spontaneous brain activity during passive hyperthermia. METHODS: An environmental heat exposure was simulated on 16 healthy men under a normal control condition (NC) at 25 degrees C and two hot conditions at 50 degrees C with hyperthermia with head cooling condition (HHC) and without hyperthermia condition (HOT) keeping the head cool, respectively. Resting-state functional MRI (fMRI) data were acquired under each condition and the values of amplitude low frequency fluctuations (ALFF) and z functional connectivity (zFC) were computed to examine regional activity and functional integration, respectively. Pearson's correlation analysis between the ALFF value and subjective sensations scores were performed. RESULTS: Brain regions with significant ALFF differences among the three conditions were found primarily in the right medial prefrontal cortex/anterior cingulate cortex (MPFC/ACC), bilateral posterior cingulate cortex/precuneus (PCC/PCu), and right fusiform gyrus. Compared to the NC or HOT condition, the HHC condition exhibited significantly increased ALFF in the bilateral PCC/PCu and decreased ALFF in the right fusiform gyrus. However, ALFF of the right MPFC/ACC showed no significant difference between the NC and HHC conditions. Positive FC between the right MPFC/ACC and bilateral PCC/PCu was significantly increased in HHC condition with respect to HOT condition. Negative FC between the right fusiform gyrus and the right MPFC/ACC, bilateral PCC/PCu was observed with a decreasing trend from the HHC condition to the HOT condition. Moreover, head-cooling also improved thermal comfort during passive hyperthermia. CONCLUSIONS: Head-cooling could substantially reduce the negative effect of hyperthermia on human brain activity as well as thermal sensation. PMID- 29025326 TI - Onco-proteogenomics: Multi-omics level data integration for accurate phenotype prediction. AB - The overall goal of translational oncology is to identify molecular alterations indicative of cancer or of responsiveness to specific therapeutic regimens. While next-generation sequencing has played a pioneering role in this quest, the latest advances in proteomic technologies promise to provide a holistic approach to the further elucidation of tumor biology. Genetic information may be written in DNA and flow from DNA to RNA to protein, according to the central dogma of molecular biology, but the observed phenotype is dictated predominantly by the DNA protein coding region-derived proteotype. Proteomics holds the potential to bridge the gap between genotype and phenotype, because the powerful analytical tool of mass spectrometry has reached a point of maturity to serve this purpose effectively. This integration of "omics" data has given birth to the novel field of onco proteogenomics, which has much to offer to precision medicine and personalized patient management. Here, we review briefly how each "omics" technology has individually contributed to cancer research, discuss technological and computational advances that have contributed to the realization of onco proteogenomics, and summarize current and future translational applications. PMID- 29025325 TI - Versatility of targeted antibiotic-loaded gold nanoconstructs for the treatment of biofilm-associated bacterial infections. AB - BACKGROUND: We previously demonstrated that a photoactivatable therapeutic approach employing antibiotic-loaded, antibody-conjugated, polydopamine (PDA) coated gold nanocages (AuNCs) could be used for the synergistic killing of bacterial cells within a biofilm. The approach was validated with a focus on Staphylococcus aureus using an antibody specific for staphylococcal protein A (Spa) and an antibiotic (daptomycin) active against Gram-positive cocci including methicillin-resistant S. aureus (MRSA). However, an important aspect of this approach is its potential therapeutic versatility. METHODS: In this report, we evaluated this versatility by examining the efficacy of AuNC formulations generated with alternative antibodies and antibiotics targeting S. aureus and alternative combinations targeting the Gram-negative pathogen Pseudomonas aeruginosa. RESULTS: The results confirmed that daptomycin-loaded AuNCs conjugated to antibodies targeting two different S. aureus lipoproteins (SACOL0486 and SACOL0688) also effectively kill MRSA in the context of a biofilm. However, our results also demonstrate that antibiotic choice is critical. Specifically, ceftaroline and vancomycin-loaded AuNCs conjugated to anti-Spa antibodies were found to exhibit reduced efficacy relative to daptomycin-loaded AuNCs conjugated to the same antibody. In contrast, gentamicin-loaded AuNCs conjugated to an antibody targeting a conserved outer membrane protein were highly effective against P. aeruginosa biofilms. CONCLUSIONS: These results confirm the therapeutic versatility of our approach. However, to the extent that its synergistic efficacy is dependent on the ability to achieve both a lethal photothermal effect and the thermally controlled release of a sufficient amount of antibiotic, they also demonstrate the importance of carefully designing appropriate antibody and antibiotic combinations to achieve the desired therapeutic synergy. PMID- 29025327 TI - Post-herpetic neuralgia - a review of current management and future directions. AB - INTRODUCTION: Post-herpetic neuralgia (PHN) is common and treatment is often suboptimal with less than half of patients achieving adequate 50% pain relief. As an area of unmet clinical need and as an archetype of neuropathic pain, it deserves the attention of clinicians and researchers. Areas covered: This review summarises the epidemiology, pathophysiology, risk factors and clinical features of varicella infection. It describes the current and possible future management strategies for preventing varicella infection and reactivation and for treating PHN. Expert opinion: A highly successful Varicella Zoster (VZV) vaccine has not been universally adopted due to fears that it may increase Herpes Zoster (HZ) incidence - and thus PHN - in older, unvaccinated generations. This is a controversial theory but advances in the efficacy of vaccines against HZ may allay these fears and encourage more widespread adoption of the VZV vaccine. Treatment of PHN, as for any neuropathic pain, must be multidisciplinary and multimodal. Advances in sensory phenotyping technology and genomics may allow more individualised treatment. Traditional research methodologies are ill-suited to assess the kind of complex interventions that are necessary to achieve better clinical outcomes in this challenging field. PMID- 29025328 TI - Safety Assessment of Cross-Linked Alkyl Acrylates as Used in Cosmetics. AB - The Cosmetic Ingredient Review (CIR) Expert Panel assessed the safety of cross linked alkyl acrylates as used in cosmetics. The 23 cross-linked alkyl acrylates included in this safety assessment are reported to function as absorbents, film formers, emulsion stabilizers, viscosity increasing agents, suspending agents, binders, and/or skin-conditioning agents. The Panel reviewed available animal and clinical data, as well as information from previous CIR reports on monomer components. Because data were not available for the individual ingredients, and because residual monomer may be present, the Panel extrapolated from previous reports to support safety. The Panel concluded that cross-linked alkyl acrylates are safe in the present practices of use and concentration, provided that they are not polymerized in benzene. For those ingredients polymerized in benzene, the data available were insufficient to make a determination of safety. A risk assessment for the amount of benzene present would be needed. PMID- 29025329 TI - m-Phenylenediamine and m-Phenylenediamine Sulfate. PMID- 29025330 TI - 40th Anniversary Overview and Rereview Summaries From 2011 to 2015. PMID- 29025331 TI - Polyvinyl Alcohol. PMID- 29025332 TI - Quaternium-15. PMID- 29025333 TI - Iodopropynyl Butylcarbamate. PMID- 29025334 TI - Polyvinyl Acetate. PMID- 29025335 TI - HC Red No. 1. PMID- 29025337 TI - PVP (Polyvinylpyrrolidone). PMID- 29025336 TI - Methyldibromo Glutaronitrile. PMID- 29025338 TI - HC Orange No. 1. PMID- 29025339 TI - Bisabolol. PMID- 29025340 TI - HC Yellow No. 4. PMID- 29025342 TI - Dibutyl, Dimethyl, and Diethyl Phthalate and Butyl Benzyl Phthalate. PMID- 29025341 TI - 2-Amno-6-Chloro-4-Nitrophenol. PMID- 29025343 TI - Retinol and Retinyl Palmitate. PMID- 29025344 TI - Glutaral. PMID- 29025345 TI - The Cosmetic Ingredient Review Program-Expert Safety Assessments of Cosmetic Ingredients in an Open Forum. AB - The Cosmetic Ingredient Review (CIR) is a nonprofit program to assess the safety of ingredients in personal care products in an open, unbiased, and expert manner. Cosmetic Ingredient Review was established in 1976 by the Personal Care Products Council (PCPC), with the support of the US Food and Drug Administration (USFDA) and the Consumer Federation of America (CFA). Cosmetic Ingredient Review remains the only scientific program in the world committed to the systematic, independent review of cosmetic ingredient safety in a public forum. Cosmetic Ingredient Review operates in accordance with procedures modeled after the USFDA process for reviewing over-the-counter drugs. Nine voting panel members are distinguished, such as medical professionals, scientists, and professors. Three nonvoting liaisons are designated by the USFDA, CFA, and PCPC to represent government, consumer, and industry, respectively. The annual rate of completing safety assessments accelerated from about 100 to more than 400 ingredients by implementing grouping and read-across strategies and other approaches. As of March 2017, CIR had reviewed 4,740 individual cosmetic ingredients, including 4,611 determined to be safe as used or safe with qualifications, 12 determined to be unsafe, and 117 ingredients for which the information is insufficient to determine safety. Examples of especially challenging safety assessments and issues are presented here, including botanicals. Cosmetic Ingredient Review continues to strengthen its program with the ongoing cooperation of the USFDA, CFA, the cosmetics industry, and everyone else interested in contributing to the process. PMID- 29025346 TI - Alpha Hydroxy Acids. PMID- 29025347 TI - 4-Chlororesorcinol. PMID- 29025348 TI - Safety Assessment of Diethanolamine and Its Salts as Used in Cosmetics. AB - The Cosmetic Ingredient Review (CIR) Expert Panel assessed the safety of diethanolamine and its salts as used in cosmetics. Diethanolamine functions as a pH adjuster; the 16 salts included in this rereview reportedly function as surfactants, emulsifying agents, viscosity increasing agents, hair or skin conditioning agents, foam boosters, or antistatic agents. The Panel reviewed available animal and clinical data, as well as information from previous CIR reports. Since data were not available for each individual ingredient, and since the salts dissociate freely in water, the Panel extrapolated from previous reports to support safety. The Panel concluded that diethanolamine and its salts are safe for use when formulated to be nonirritating. These ingredients should not be used in cosmetic products in which N-nitroso compounds can be formed. PMID- 29025349 TI - Isostearamidopropyl Morpholine Lactate. PMID- 29025350 TI - The patient with a complex chronic respiratory disease: a specialist of his own life? AB - INTRODUCTION: The independent and central role of the patient with a complex chronic respiratory disease in targeted, personalized disease management strategies is becoming increasingly important. Patients are the ones living with the disease and are finally responsible for their lives underlining their role as essential members of the interdisciplinary treatment team. Areas covered: The present paper narratively reviews existing research and discusses the special, as well as specialized, role of the patient with a complex chronic respiratory disease in the healthcare system and highlights fundamental elements of the (future) relationship between patient and healthcare professionals. Expert commentary: Since the chronic respiratory disease at hand is part of the patient's entire life, we need holistic, personalized approaches optimizing patients' quality of life by not only treating the disease but considering the patients' whole environment and where healthcare professionals and patients are co-creating value care. PMID- 29025351 TI - Utilization of robotic-arm assisted total knee arthroplasty for soft tissue protection. AB - Despite the well-established success of total knee arthroplasty (TKA), iatrogenic ligamentous and soft tissue injuries are infrequent, but potential complications that can have devastating impact on clinical outcomes. These injuries are often related to technical errors and excessive soft tissue manipulation, particularly during bony resections. Recently, robotic-arm assisted TKA was introduced and demonstrated promising results with potential technical advantages over manual surgery in implant positioning and mechanical accuracy. Furthermore, soft tissue protection is an additional potential advantage offered by these systems that can reduce inadvertent human technical errors encountered during standard manual resections. Therefore, due to the relative paucity of literature, we attempted to answer the following questions: 1) does robotic-arm assisted TKA offer a technical advantage that allows enhanced soft tissue protection? 2) What is the available evidence about soft tissue protection? Recently introduced models of robotic-arm assisted TKA systems with advanced technology showed promising clinical outcomes and soft tissue protection in the short- and mid-term follow-up with results comparable or superior to manual TKA. In this review, we attempted to explore this dimension of robotics in TKA and investigate the soft tissue related complications currently reported in the literature. PMID- 29025353 TI - Mass spectrometry based proteomics analyses in kallikrein-related peptidase research: implications for cancer research and therapy. AB - INTRODUCTION: Kallikrein-related peptidases (KLKs) are a family of serine peptidases that are deregulated in numerous pathological conditions, with a multitude of KLK-mediated functional roles implicated in the progression of cancer. Advances in multidimensional mass spectrometry (MS)-based proteomics have facilitated the quantitative measurement of deregulated KLK expression in cancer, identifying certain KLKs, as well as their substrates, as potential cancer biomarkers. Areas covered: In this review, we discuss how these approaches have been utilized for KLK biomarker discovery and unbiased substrate determination in complex protein pools that mimic the in vivo extracellular microenvironment. Expert commentary: Although a limited number of studies have been performed, the quantity of information generated has greatly improved our understanding of the functional roles of KLKs in cancer progression. In addition, these data suggest additional means through which deregulated KLK expression may be targeted in cancer treatment, highlighting the potential therapeutic value of these state-of the-art MS-based studies. PMID- 29025352 TI - Risk of colorectal polyps and of malignancies in asymptomatic carriers of mutations in the main DNA mismatch repair genes. AB - OBJECTIVE: Mutation carriers (Mut+) in DNA mismatch repair genes are predisposed to cancer of various organs and to adenomatous polyps; however, they may remain asymptomatic and cancer or polyp-free for several years. We purposed to analyse the clinical follow-up of individuals carrying constitutional mutations in the MLH1, MSH2 or MSH6 genes who were unaffected by benign polyps or malignant tumours at diagnosis. MATERIAL AND METHODS: Mut + subjects (n.81) were members of Lynch syndromes in whom mutations were detected between 1993 and 2015; all were asymptomatic at diagnosis. They were informed of the cancer risk and surveillance was suggested. As controls, 113 nongene carriers (Mut-) in the same Lynch families were identified. RESULTS: About one-fourth of the mutation carriers developed polyps, mostly adenomas; polyps were less (12%, p < .05) in Mut - subjects, and hyperplastic lesions were the prevalent histology. More polyps were detected in MLH1 vs. MSH2 mutation carriers. In Mut+, 21 malignant tumours developed in 14 carriers vs. 4 tumours in 3 patients among Mut- (p < .001). Tumours were mostly of the Lynch spectrum; however, three glioblastomas were developed, together with neoplasms of various organs (duodenum, thyroid, skin, lung and cervix). Mean age of tumour occurrence was 43.0 years in Mut + vs. 53.0 among Mut-. CONCLUSIONS: Cancer developed more often in Mut+, with no consistent difference between MLH1 and MSH2 carriers. More polyps (mostly adenomas) were detected in MLH1 carriers. The majority (13 of 21) of malignant tumours occurred in organs for which there is no recommended surveillance, and were lethal in three patients. PMID- 29025354 TI - Cell-bound complement activation products as lupus biomarkers: diagnosis, monitoring and stratification. AB - INTRODUCTION: Cell-bound complement activation products (CB-CAPs) were first reported in 2004, since which time multiple laboratories have demonstrated their value as biomarkers for diagnosis, monitoring, and stratification of patients with systemic lupus erythematosus. Areas covered: This review summarizes the highlights of these 14 years of CB-CAPs discovery and validation, concluding with a view toward their future potential for precision medicine. Expert commentary: The practice of medicine is both art and science and each physician can be considered both artist and scientist with a variable blend of the two skill sets. There is arguably no disease that presents a greater challenge, nor a greater opportunity, for implementation of precision medicine, as does lupus. The physician who is presented with diagnosis and/or management of a patient suspected of having lupus will need to augment artistic skills with scientific guidance, and that science will be delivered in the form of biomarkers. Ultimately, we will likely have a 'lupus liquid biopsy' that will be 100% sensitive and 100% specific for a diagnosis of lupus. This will undoubtedly be a panel of biomarkers rather than an individual laboratory test. Such a liquid biopsy could transform lupus diagnosis to an entirely scientific process. PMID- 29025355 TI - A Content Analysis of Testosterone Websites: Sex, Muscle, and Male Age-Related Thematic Differences. AB - Male testosterone supplementation is a large and growing industry. How is testosterone marketed to male consumers online? The present exploratory study entailed a content coding analysis of the home pages of 49 websites focused on testosterone supplementation for men in the United States. Four hypotheses concerning anticipated age-related differences in content coding were also tested: more frequent longevity content toward older men, and more frequent social dominance/physical formidability, muscle, and sex content toward younger men. Codes were created based on inductive observations and drawing upon the medical, life history, and human behavioral endocrinology literatures. Approximately half ( n = 24) of websites were oriented toward younger men (estimated audience of men 40 years of age or younger) and half ( n = 25) toward older men (estimated audience over 40 years of age). Results indicated that the most frequent content codes concerned online sales (e.g., product and purchasing information). Apart from sales information, the most frequent codes concerned, in order, muscle, sex/sexual functioning, low T, energy, fat, strength, aging, and well-being, with all four hypotheses also supported. These findings are interpreted in the light of medical, evolutionary life history, and human behavioral endocrinology approaches. PMID- 29025357 TI - Fatherhood in Australian Aboriginal and Torres Strait Islander communities: An Examination of Barriers and Opportunities to Strengthen the Male Parenting Role. AB - Traditional Australian Aboriginal and Torres Strait Islander societies value men's role as parents; however, the importance of promoting fatherhood as a key social determinant of men's well-being has not been fully appreciated in Western medicine. To strengthen the Aboriginal and Torres Strait Islander male parenting role, it is vital to examine current barriers and opportunities. The first author (a male Aboriginal health project officer) conducted yarning sessions in three remote Australian communities, two being Aboriginal, the other having a high Aboriginal population. An expert sample of 25 Aboriginal and 6 non-Aboriginal stakeholders, including maternal and child health workers and men's group facilitators, considered barriers and opportunities to improve men's parenting knowledge and role, with an aim to inform services and practices intended to support men's parenting. A specific aim was to shape an existing men's group program known as Strong Fathers, Strong Families. A thematic analysis of data from the project identified barriers and opportunities to support men's role as parents. Challenges included the transition from traditional to contemporary parenting practices and low level of cultural and male gender sensitivity in maternal and child health services. Services need to better understand and focus on men's psychological empowerment and to address shame and lack of confidence around parenting. Poor literacy and numeracy are viewed as contributing to disempowerment. Communities need to champion Aboriginal and Torres Strait Islander male father role models. Biases and barriers should be addressed to improve service delivery and better enable men to become empowered and confident fathers. PMID- 29025358 TI - Men's Perceptions of Women's Participation in Development Initiatives in Rural Bangladesh. AB - Without taking masculine issues into account, women's participation in development initiatives does not always guarantee their empowerment, health, and welfare in a male-dominated society. This study aimed to explore men's perceptions of women's participation in development (WPD) in rural Bangladesh. In adopting a qualitative approach, the study examined 48 purposively selected married and unmarried men aged 20-76 years in three northwest villages. Data collection was accomplished through four focus group discussions (FGDs) with 43 men clustered into four groups and through individual interviews with five other men. A qualitative content analysis of the data revealed an overall theme of "feeling challenged by fears and hopes," indicating variations in men's views on women's participation in development initiatives as represented by three main categories: (a) fearing the loss of male authority, (b) recognizing women's roles in enhancing family welfare, and (c) valuing women's independence. In the context of dominant patriarchal traditions in Bangladesh, these findings provide new insight into dynamics and variations of men's views, suggesting a need to better engage men during different stages of women-focused development initiatives. PMID- 29025356 TI - Associations Between Sleep Deprivation and Salivary Testosterone Levels in Male University Students: A Prospective Cohort Study. AB - Sleep deprivation is a common health problem that is growing rapidly worldwide and it is associated with short- and long-term impacts on health. The aim of this study was to detect potential predictors of salivary testosterone (sT) association with sleep deprivation in Arab male university students. In this prospective cohort study, 77 university male students in the age range of 18 to 26 years were divided into two groups, sleep-deprived (SD) participants and non sleep-deprived (NSD) participants. Sleep deprivation was defined as sleeping less than 5 hr per night. Blood samples and sT were collected from fasting participants to measure serum levels of glucose, lipid profile, leptin, serotonin, sT, and body mass index (BMI) values. The multiple linear correlation model of high-density lipoprotein cholesterol (HDL-C), BMI, and serotonin was positively correlated with sT ( r = .977, p < .05) in the SD group. No correlations were identified with sT in the NSD group. In the SD study group, the multiple linear regression model of HDL-C, BMI, and serotonin was significantly influenced by sT ( R2 = .955, p < .05). These predictors together explained approximately 96% of the variance in sT levels in the SD study group. No predictive variables for sT were reported in the NSD group. Results indirectly confirmed the presence of a positive association between sT and sleep deprivation in young men. This association is mediated by three factors, HDL-C, BMI, and serum serotonin, which are collectively considered as part of a significant physiological adaptation to sleep deprivation in young men. PMID- 29025359 TI - BRCA1 or CDK12 loss sensitizes cells to CHK1 inhibitors. AB - A broad spectrum of tumors develop resistance to classic chemotherapy, necessitating the discovery of new therapies. One successful strategy exploits the synthetic lethality between poly(ADP-ribose) polymerase 1/2 proteins and DNA damage response genes, including BRCA1, a factor involved in homologous recombination-mediated DNA repair, and CDK12, a transcriptional kinase known to regulate the expression of DDR genes. CHK1 inhibitors have been shown to enhance the anti-cancer effect of DNA-damaging compounds. Since loss of BRCA1 increases replication stress and leads to DNA damage, we tested a hypothesis that CDK12- or BRCA1-depleted cells rely extensively on S-phase-related CHK1 functions for survival. The silencing of BRCA1 or CDK12 sensitized tumor cells to CHK1 inhibitors in vitro and in vivo. BRCA1 downregulation combined with CHK1 inhibition induced excessive amounts of DNA damage, resulting in an inability to complete the S-phase. Therefore, we suggest CHK1 inhibition as a strategy for targeting BRCA1- or CDK12-deficient tumors. PMID- 29025360 TI - Best practice of identification and proteomic analysis of extracellular vesicles in human health and disease. AB - INTRODUCTION: Extracellular vesicles are emerging sources of biomarkers for modern preventive and precision medicine. Extracellular vesicles in body fluids offer a unique opportunity for integrative biomarker approaches due to their complex biocargo that includes proteins, lipids, nucleic acids and metabolites. Mass spectrometry-based proteomics data suggest that a significant portion of human proteins are sorted into extracellular vesicles and amenable for biomarker discovery schemes. Areas covered: this review focuses on key aspects of isolation, quality control and subsequent analysis of blood plasma- and conditioned medium-derived extracellular vesicle proteins, and summarizes the current state-of-the-art in the field. Furthermore, it provides introduction and guidelines for mass spectrometry-based proteomic analysis of extracellular vesicles. Expert commentary: Comparison of newly developed isolation and purification techniques with classical ultracentrifugation-based approaches are highly recommended. It is also essential to use multiple analytical approaches to characterize the isolated extracellular vesicles prior to characterization of their biocargo. Rigor in data reproducibility, critical data analysis, awareness of potential pitfalls, standardization and benchmarking are required for extracellular vesicle research to fulfil the current expectation that these subcellular structures can become a valid source of next generation biomarkers. PMID- 29025361 TI - Membrane-bound pyrophosphatase of human gut microbe Clostridium methylpentosum confers improved salt tolerance in Escherichia coli, Saccharomyces cerevisiae and tobacco. AB - Membrane-bound pyrophosphatases (PPases) are involved in the adaption of organisms to stress conditions, which was substantiated by numerous plant transgenic studies with H+-PPase yet devoid of any correlated evidences for other two subfamilies, Na+-PPase and Na+,H+-PPase. Herein, we demonstrate the gene cloning and functional evaluation of the membrane-bound PPase (CmPP) of the human gut microbe Clostridium methylpentosum. The CmPP gene encodes a single polypeptide of 699 amino acids that was predicted as a multi-spanning membrane and K+-dependent Na+,H+-PPase. Heterologous expression of CmPP could significantly enhance the salt tolerance of both Escherichia coli and Saccharomyces cerevisiae, and this effect in yeast could be fortified by N terminal addition of a vacuole-targeting signal peptide from the H+-PPase of Trypanosoma cruzi. Furthermore, introduction of CmPP could remarkably improve the salt tolerance of tobacco, implying its potential use in constructing salt resistant transgenic crops. Consequently, the possible mechanisms of CmPP to underlie salt tolerance are discussed. PMID- 29025362 TI - The partition and transport behavior of cytotoxic ionic liquids (ILs) through the DPPC bilayer: Insights from molecular dynamics simulation. AB - A molecular dynamics (MD) simulation with atomistic details was performed to examine the partitioning and transport behavior of moderately cytotoxic ionic liquids (ILs), namely choline bis(2-ethylhexyl) phosphate (CBEH), choline bis(2,4,4-trimethylpentyl) phosphinate (CTMP) and choline O,O-diethyl dithiophosphate (CDEP) in a fully hydrated dipalmitoylphosphatidylcholine (DPPC) bilayer in the fluid phase at 323 K. The structure of ILs was so selected to understand if the role of dipole and dispersion forces in the ILs distribution in the membrane can be possible. Several analyses including mass density, electrostatic potential, order parameter, diffusion coefficients and hydrogen bond formation, was carried out to determine the precise location of the anionic species inside the membrane. Moreover, the potential of the mean force (PMF) method was used to calculate free energy profile for transferring anionic species from the DPPC membrane into the bulk water. While less cytotoxic DEP is located within the bulk water, more cytotoxic TMP and BEH ILs were found to remain in the membrane and the energy barrier for crossing through the bilayer center of BEH was higher. Various ILs have no significant effect on P-N vector. The thickness of lipid bilayer decreased in all systems comprising ILs, while area per lipid increased. PMID- 29025363 TI - Identification of core objectives for teaching sustainable healthcare education. AB - BACKGROUND: Physicians will be called upon to care for patients who bear the burden of disease from the impact of climate change and ecologically irresponsible practices which harm ecosystems and contribute to climate change. However, physicians must recognize the connection between the climate, ecosystems, sustainability, and health and their responsibility and capacity in changing the status quo. Sustainable healthcare education (SHE), defined as education about the impact of climate change and ecosystem alterations on health and the impact of the healthcare industry on the aforementioned, is vital to prevention of adverse health outcomes due to the changing climate and environment. OBJECTIVE: To systematically determine which and when a set of SHE objectives should be included in the medical education continuum. DESIGN: Fifty two SHE experts participated in a two-part modified-Delphi study. A survey was developed based on 21 SHE objectives. Respondents rated the importance of each objective and when each objective should be taught. Descriptive statistics and an item-level content validity index (CVI) were used to analyze data. RESULTS: Fifteen of the objectives achieved a content validity index of 78% or greater. The remaining objectives had content validity indices between 58% and 77%. The preclinical years of medical school were rated as the optimal time for introducing 13 and the clinical years for introducing six of the objectives. Respondents noted the definition of environmental sustainability should be learned prior to medical school and identifying ways to improve the environmental sustainability of health systems in post-graduate training. CONCLUSIONS: This study proposes SHE objectives for the continuum of medical education. These objectives ensure the identity of the physician includes the requisite awareness and competence to care for patients who experience the impact of climate and environment on health and advocate for sustainability of the health systems in which they work. ABBREVIATIONS: CVI: Content validity index; SHE: Sustainable healthcare education. PMID- 29025364 TI - Pharmacokinetic/pharmacodynamic parameters for treatment optimization of infection due to antibiotic resistant bacteria: a summary for practical purposes in children and adults. AB - In the last years, there has been a tremendous increase in the incidence of bacterial infections due to resistant strains, especially multi-drug resistant Gram-negative bacilli. In Europe, a north to south and a west to east gradient was noticed, with more than one third of the K. pneumonia isolates being resistant to carbapenems in few countries. New antibiotics are lacking and, as a consequence, pharmacokinetic/pharmacodynamic parameters, normalized to pathogen minimal inhibitory concentration, are used with increased frequency to treat infections due to difficult-to-treat pathogens. These parameters are available at least for the adult population, but sparse in many different publications. This review wants to provide a comprehensive and 'easy to read' text for everyday practice, briefly summarizing the presently available knowledge on pharmacokinetic/pharmacodynamic parameters (normalized for minimal inhibitory concentration values) of different class drugs, that can be applied for an effective antibacterial treatment infections due to antibiotic-resistant pathogens. PMID- 29025366 TI - Erratum. PMID- 29025365 TI - Patient reported outcomes of hand function three years after stroke. AB - OBJECTIVE: To comprehensively describe hand function and associated factors among stroke survivors by means of the Michigan Hand Outcomes Questionnaire (MHQ; 6 domains; score 0-100, worst-best). METHODS: In this cross-sectional study, stroke patients were invited to complete a set of questionnaires on hand function, socio demographic characteristics, mental functioning, daily activities, quality of life, and caregiver strain. Stroke characteristics were collected retrospectively from medical records. Multiple linear regression analysis adjusted for age, sex, and duration of follow-up was used to identify factors associated with MHQ score. RESULTS: 207 out of 576 eligible patients responded (36%); mean age 63.8 years (SD14.2), 125 males (60.4%). Mean time since stroke was 36.3 months (SD9.9). In 85% of the patients, the MHQ Total score was less than 100 points (median 79.9, IQR 63.0-95.8). The median scores of the domains were: overall hand function 75.0, daily activities 90.5, work 85.0, pain 100, appearance 93.8, and satisfaction with hand function 83.3. A lower MHQ Total score was significantly associated with a lower Barthel Index at hospital discharge, a lower level of education, a supratentorial stroke and with unfavorable outcomes regarding physical and mental functioning, quality of life, and caregiver strain. CONCLUSION: Patients can perceive limitations on several domains with respect to hand function 2-5 years after stroke. Problems related to the appearance of the hand and satisfaction with hand function can be relevant and should be considered accordingly. Persistent hand problems after stroke are related to a more severe, supratentorial stroke in lower educated patients. PMID- 29025367 TI - Narrow QRS tachycardia with AV response from 2:1 to 1:1. What is the mechanism? PMID- 29025368 TI - Thinking inside the frame: A framing analysis of the humanities in Danish print news media. AB - The humanities, the natural and social sciences all represent advanced and systematic knowledge production-and they all receive public funding for doing so. However, although the field of public understanding of science has been well established for decades, similar research attention has not been directed at the humanities. The purpose of this study is to argue the case for further research of public understanding of the humanities and to take a first step in that direction by presenting a study of the framing of the humanities in Danish print news media. Different framings of the humanities are analyzed. Despite the differences in the issue-specific frames, the generic framing of the humanities shared by most articles is as follows: 75% explicitly frame the humanities as deficit, while the remaining 25% are more neutral. Consequently, if newspapers constitute the only source of information concerning the humanities, newsreaders may not be much wiser in understanding what the humanities might be-but they will know that whatever the humanities is, it is broken and useless. PMID- 29025369 TI - Credibility, expertise and the challenges of science communication 2.0. PMID- 29025370 TI - Historical moments in public understanding of science: 1977, The Visible Scientists identifies a new scientist for the mass media age. PMID- 29025371 TI - Decentralized wastewater treatment using passively aerated biological filter. AB - This study aimed to evaluate the efficiency of a novel pilot-scale passively aerated biological filter (PABF) as a low energy consumption system for the treatment of municipal wastewater. It consists of four similar compartments, each containing 40% of a non-woven polyester fabric as a bio-bed. The PABF was fed with primary treated wastewater under a hydraulic retention time (HRT) of 3.5 hr and a hydraulic loading rate of 5.5 m2/m3/d. The effect of media depth, HRT, dissolved oxygen (DO) and surface area of the media on the removal efficiency of pollutants was investigated. Results indicated that increasing media depth along the axis of the reactor and consequently increasing the HRT and DO resulted in great removal of different pollutants. A significant increase in the DO levels in the final effluent up to 6.7 mg/l resulted in good nitrification processes. Statistical analysis using SPSS showed that the reactor performance has significant removal efficiency (p < .05) for all pollutants. Overall results indicated that PABF is a viable ecological engineering approach that can be optimized and applied to improve water quality with minimal consumption of energy and low sludge production compared with conventional activated sludge and trickling filter systems. PMID- 29025372 TI - Drugs in cardiac arrest: the rise and fall of antiarrhythmics. AB - Since the publication of 2000 guidelines for resuscitation, amiodarone is considered the antiarrhythmic drug of choice for refractory ventricular fibrillation/pulseless ventricular tachycardia. However, to date there is no proven benefit in terms of neurologically intact survival to hospital discharge. A comprehensive search of the recent literature on amiodarone, nifekalant and lidocaine in cardiac arrest was performed. Amiodarone and nifekalant are superior to lidocaine with regards to the return of spontaneous circulation and survival to hospital admission. Nifekalant shows a trend towards quicker termination of ventricular fibrillation compared to amiodarone. There is great uncertainty about the efficacy of antiarrhythmics in cardiac arrest. Failure to show improvements regarding meaningful survival questions their current use and suggests the need for re-evaluating their place in cardiopulmonary resuscitation. PMID- 29025373 TI - The prognostic value of high sensitive cardiac troponin I in patients receiving cardiac resynchronisation therapy. AB - BACKGROUND: Cardiac troponin I (cTnI) is a valuable prognostic biomarker in patients with chronic heart failure (CHF). However, the prognostic importance of cTnI in patients who received cardiac resynchronisation therapy (CRT) remains unknown. The aim of this prospective study was to determine the prognostic value of high-sensitive cTnI (hs-cTnI) in CHF patients receiving CRT. METHODS: We performed measurements of baseline hs-cTnI levels in CRT patients with ischaemic as well as nonischaemic aetiology of CHF, and we investigated their possible association with response to CRT and survival of patients. RESULTS: Ninety consecutive CRT patients (mean age 64 +/- 9 years, 71 men) were included. According to the best cut-off value of hs-cTnI level to predict CRT response and all cause mortality, patients were divided into group 1 (hs-cTnI level >=6.5 ng/l, n = 46) and group 2 (hs-cTnI level <6.5 ng/l, n = 44). During the follow-up period (1155 +/- 406 days), 47% of patients were CRT responders (30% in group 1 and 64% in group 2, p = .002) and 31% of patients died from any cause (48% in group 1 and 14% in group 2, p = .001). Regression analysis showed that hs-cTnI level <6.5 ng/l was an independent predictor of CRT response (OR 3.49, p = .019) and that hs-cTnI level >=6.5 ng/l was an independent predictor of all cause mortality (HR 3.01, p = .021). CONCLUSION: The hs-cTnI can be an useful biomarker with prognostic value in patients receiving CRT. PMID- 29025375 TI - Dopamine-induced SULT1A3/4 promotes EMT and cancer stemness in hepatocellular carcinoma. AB - Hepatocellular carcinoma has the second highest incidence rate among malignant cancers in China. Hepatocellular carcinoma development is complex because of the metabolism disequilibrium involving SULT1A3/4, a predominant sulfotransferase that metabolizes sulfonic xenobiotics and endogenous catecholamines. However, the correlation between SULT1A3/4 and hepatocellular carcinoma progression is unclear. By utilizing immunofluorescence and immunohistochemical analysis, we found that in nine hepatocellular carcinoma clinical specimens, SULT1A3/4 was abundantly expressed in tumor tissues compared to that in the adjacent tissues. Moreover, liver cancer cells (HepG2, MHCC97-L, and MHCC97-H) had higher basal expression of SULT1A3/4 than immortalized liver cells (L02 and Chang liver). Ultra-high-pressure liquid chromatography-tandem mass spectrometry assay results further revealed that the concentration of dopamine (a substrate of SULT1A3/4) was negatively correlated with SULT1A3/4 protein expression. As a transcriptional regulator of SULT1A3/4 in turn, dopamine was used to induce SULT1A3/4 in vitro. Interestingly, dopamine significantly induced SULT1A3/4 expression in liver cancer HepG2 cells, while decreased that in L02 cells. More importantly, the expression levels of epithelial-mesenchymal transition biomarkers (N-cadherin and vimentin) and cell stemness biomarkers (nanog, sox2, and oct3/4) considerably increased in HepG2 with dopamine-induced SULT1A3/4, whereas in L02, epithelial mesenchymal transition and cancer stem cell-associated proteins were contrarily decreased. Furthermore, invasion and migration assays further revealed that dopamine-induced SULT1A3/4 dramatically stimulated the metastatic capacity of HepG2 cells. Our results implied that SULT1A3/4 exhibited bidirectional effect on tumor and normal hepatocytes and may thus provide a novel strategy for hepatocellular carcinoma clinical targeting. In addition, SULT1A3/4 re-expression could serve as a biomarker for hepatocellular carcinoma prognosis. PMID- 29025374 TI - The prognostic significance of cancer-associated fibroblasts in pancreatic ductal adenocarcinoma. AB - Cancer-associated fibroblasts are abundant in the desmoplastic stroma of pancreatic ductal adenocarcinomas and are considered to play important roles in tumor progression. In this study, we investigated the expression status of secreted protein acidic and rich in cysteine, periostin, fibroblast-activated protein, and the newly developed proCOL11A1 antibody in the stroma of surgically resected pancreatic ductal adenocarcinomas and their prognostic implications. Tissue microarrays were constructed from 155 surgically resected pancreatic ductal adenocarcinomas and paired non-neoplastic pancreata and from another independent set of 48 normal/benign pancreata, and immunohistochemical stains were performed for proCOL11A1, fibroblast-activated protein, secreted protein acidic and rich in cysteine, and periostin. The immunohistochemical stain results were correlated with clinicopathological features and survival data. proCOL11A1, fibroblast-activated protein, secreted protein acidic and rich in cysteine, and periostin expression was significantly increased in the intratumoral stroma of pancreatic ductal adenocarcinomas compared to paired non-neoplastic pancreata (proCOL11A1: 145/155 (93.5%) vs 26/154 (16.9%); fibroblast-activated protein: 139/143 (97.2%) vs 82/132 (62.1%); secreted protein acidic and rich in cysteine: 113/150 (75.3%) vs 49/132 (37.1%); periostin: 135/151 (89.4%) vs 45/135 (33.3%); p < 0.001, all). While the four markers were expressed at lower levels in normal/benign pancreata, there were no significant differences in the expression frequencies among normal pancreas, acute pancreatitis, and chronic pancreatitis. Interestingly, on survival analysis, low intratumoral fibroblast-activated protein+ cancer-associated fibroblast counts (<100/high-power field) were associated with a significantly reduced overall survival compared to those with high fibroblast-activated protein+ cancer-associated fibroblast counts (p = 0.010; hazard ratio 5.2 (95% confidence interval 1.3-21.3)). Similar patterns were seen for proCOL11A and secreted protein acidic and rich in cysteine and overall and disease-free survival, although not statistically significant. In conclusion, we demonstrate that the presence of cancer-associated fibroblasts in the tumor stroma may not always be associated with a poor prognosis as suggested in many studies; on the contrary, it may even be associated with prolonged survival, supporting the recent experimental findings that tumor stroma may have a protective role rather than enhance aggressive behavior. PMID- 29025376 TI - Roles of microRNA let-7b in papillary thyroid carcinoma by regulating HMGA2. AB - The incidence of thyroid cancer has increased significantly in the last decade, and the most frequent type of this cancer is papillary thyroid carcinoma. MicroRNAs have been demonstrated to be abnormally expressed in tumors and associated with the development of the tumors. Our aim was to analyze the role and molecular mechanisms of tumor suppressor let-7b in the papillary thyroid carcinoma. Expression of let-7b and high-mobility group A2 in papillary thyroid carcinoma tissues and cell lines was assessed using quantitative reverse transcription polymerase chain reaction and western blot analysis. To explore the role of let-7b or high-mobility group A2 in the BCPAP and TPC-1 cells, 3-(4,5 dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and Transwell methods were used. Let-7b expression was significantly downregulated while expression of high mobility group A2 was upregulated dramatically in papillary thyroid carcinoma tissues and cells compared with that in normal thyroid tissues and cells. In addition, overexpression of let-7b or knockdown of high-mobility group A2 inhibited cell migration and invasion compared with that of control. Besides, high-mobility group A2 was negatively regulated by let-7b in BCPAP cells. Moreover, high-mobility group A2 reintroduction reversed the anti-proliferation, anti-migration, and anti-invasion roles of let-7b. Let-7b might function as a tumor suppressor in papillary thyroid carcinoma by suppressing the expression of high-mobility group A2, and therefore might provide a promising therapeutic target for patients with papillary thyroid carcinoma. PMID- 29025377 TI - 18F-FDG PET/CT in breast cancer: Evidence-based recommendations in initial staging. AB - Current guidelines do not systematically recommend 18F-FDG PET/CT for breast cancer staging; and the recommendations and level of evidence supporting its use in different groups of patients vary among guidelines. This review summarizes the evidence about the role of 18F-FDG PET/CT in breast cancer staging and the therapeutic and prognostic impact accumulated in the last decade. Other related aspects, such as the association of metabolic information with biology and prognosis are considered and evidence-based recommendations for the use of 18F FDG PET/CT in breast cancer staging are offered. We systematically searched MEDLINE for articles reporting studies with at least 30 patients related to clinical questions following the Problem/Population, Intervention, Comparison, and Outcome framework. We critically reviewed the selected articles and elaborated evidence tables structuring the summarized information into methodology, results, and limitations. The level of evidence and the grades of recommendation for the use of 18F-FDG PET/CT in different contexts are summarized. Level III evidence supports the use of 18F-FDG PET/CT for initial staging in patients with recently diagnosed breast cancer; the diagnostic and therapeutic impact of the 18F-FDG PET/CT findings is sufficient for a weak recommendation in this population. In patients with locally advanced breast cancer, level II evidence supports the use of 18F-FDG PET/CT for initial staging; the diagnostic and therapeutic impact of the 18F-FDG PET/CT findings is sufficient for a strong recommendation in this population. In patients with recently diagnosed breast cancer, the metabolic information from baseline 18F-FDG PET/CT is associated with tumor biology and has prognostic implications, supported by level II evidence. In conclusion, 18F-FDG PET/CT is not recommended for staging all patients with early breast cancer, although evidence of improved regional and systemic staging supports its use in locally advanced breast cancer. Baseline tumor glycolytic activity is associated with tumor biology and prognosis. PMID- 29025378 TI - Transfusion-Related Acute Lung Injury (TRALI) and Transfusion-Associated Circulatory Overload (TACO) in Liver Transplantation: A Case Report and Focused Review. AB - Liver transplantation (LT) is a complex procedure in a patient with multi-organ system dysfunction and coagulation defects. The surgical procedure involves dissection, major vessel manipulation, and pathophysiologic effects of graft storage and reperfusion. As a result, LT frequently involves significant hemorrhage. Subsequent massive transfusion carries high risk of transfusion associated complications. Transfusion-related acute lung injury (TRALI) and transfusion-associated circulatory overload (TACO) are the leading causes of transfusion associated mortality. In this case report and focused review, we present data that suggest that patients undergoing liver transplantation may be at higher risk for TRALI and TACO than the general population. Anesthesiologists can play a role in decreasing these risks by increasing recognition and reporting of TRALI and TACO, using point of care testing with thromboelastography to guide and decrease transfusion, and considering alternatives to traditional blood products like solvent/detergent plasma. PMID- 29025379 TI - Survival and Migration of Adipose-Derived Stem Cells Transplanted in the Injured Retina. AB - OBJECTIVES: Transplantation of stem cells is one of the approaches to treat retinal diseases. Our objective was to determine whether adipose-derived stem cell transplant can survive and migrate in the injured retina using a sodium iodate model for the pigmented retinal epithelium injury. MATERIALS AND METHODS: The adipose-derived stem cells were isolated from male albino Sprague-Dawley rats and labeled with DiI so as to track the transplants in the subretinal space. Retinal pigmented epithelium damage was induced by retro-orbital sinus sodium iodate injection (40 mg/kg) into albino Sprague-Dawley rats. Four weeks after transplantation, the eyeballs were fixed in 4% paraformaldehyde and cut with cryostat. The eyeballs were serially sectioned along the vertical meridian. Cryosections were from the full length of the retina and passing through the optic nerve head. The survival and migration of transplanted cells were assessed. RESULTS: Sodium iodate selectively destroyed the retinal pigmented epithelium layer. The transplanted cells incorporated into the retinal pigmented epithelium layer, perhaps differentiating into a retinal pigmented epithelium phenotype. The transplanted cells were located in the subretinal space; after 4 weeks, some were observed in the retinal pigmented epithelium layer. CONCLUSIONS: We found that adipose-derived stem cells survived for 4 weeks after transplantation and migrated into the retinal pigmented epithelium layer. PMID- 29025380 TI - Early Tracheostomy Reduces Time of Mechanical Ventilation in Respiratory High Risk Patients After Liver Transplant. AB - OBJECTIVES: Weaning from mechanical ventilation after liver transplant can be demanding. In selected cases, tracheostomy is helpful. The optimal timing for tracheostomy in ventilator-dependent liver transplant recipients is not well known. MATERIALS AND METHODS: We retrospectively analyzed data of 447 patients who had undergone liver transplant in our hospital. Thirty-nine patients who had high risk of prolonged mechanical ventilation according to the Respiratory Risk Score were identified from 95 patients who received tracheostomy after liver transplant. RESULTS: When compared with tracheostomy performed > 3 days after transplant, early tracheostomy (<= 3 days) had a higher likelihood of a brief duration of mechanical ventilation (62.5% vs 9.7%; P = .001). Accordingly, time spent in an intensive care unit was shorter with early tracheostomy. CONCLUSIONS: This study provides a retrospective analysis of a small study cohort; therefore, validation of our findings requires a prospective randomized multicenter study on early tracheostomy in respiratory high-risk liver transplant recipients. PMID- 29025381 TI - Adenovirus Infection as a Cause of Fever of Unknown Origin and Allograft Dysfunction in a Kidney Transplant Recipient. AB - With the recent introduction of more potent modern immunosuppressive regimens in solid-organ transplant, new types of viral infections such as adenovirus are emerging as a potential cause for graft dysfunction and loss. We report a case of 41-year-old male patient with end-stage renal disease from recurrent kidney stones who underwent kidney transplant from a deceased 12-year-old female donor. He developed adenoviral infection with acute cystitis, microscopic hematuria, and necrotizing interstitial nephritis associated with graft dysfunction within the first month of the postoperative period. Diagnosis was made by graft biopsy that showed more than 60% necrosis with tubulointerstitial hemorrhage, thrombotic microangiopathy, and histologic features suggestive of viral infection with negative Cytomegalovirus and polyomavirus stains in the graft and elevated adenovirus PCR in the blood. Simultaneously, the patient had very low absolute total lymphocyte count of 70 cells/MUL during which he received supratherapeutic tacrolimus at whole blood trough levels and mycophenolate mofetil. This prompted the tapering of immunosuppression and the discontinuation of all antimicrobial drugs. Within a 2-week period, the immune reconstitution was sufficient for the clearance of the infection and the subsequent gradual recovery of graft function. PMID- 29025382 TI - Biliary Complications in Recipients of Living-Donor Liver Transplant: A Single Center Review of 120 Patients. AB - OBJECTIVES: Biliary complications are common after living-donor liver transplant. This retrospective study reviewed our experience with biliary complications in recipients of living-donor liver transplant. MATERIALS AND METHODS: Over our 9 year study period, 120 patients underwent living-donor liver transplant. Patients were divided into 2 groups, with group A having biliary complications and group B without biliary complications. Both groups were compared, and different treatment modalities for biliary complications were evaluated. RESULTS: Group A included 45 patients (37.5%), whereas group B included 75 patients (62.5%). Biliary complications included bile leak in 17 patients (14.2%), biliary stricture in 11 patients (9.2%), combined biliary stricture with bile leak in 15 patients (12.5%), and sphincter of Oddi dysfunction and cholangitis in 1 patient each (0.8%). Cold ischemia time was significantly longer in group A (P = .002). External biliary drainage was less frequently used in group A (P = .031). Technical success rates of endoscopic biliary drainage and percutaneous transhepatic biliary drainage were 68.3% and 41.7%. Survival rate following relaparotomy for biliary complications was 62.5%. CONCLUSIONS: Graft ischemia is an important risk factor for biliary complications. Bile leaks can predispose to anastomotic strictures. The use of external biliary drainage seems to reduce the incidence of biliary complications. Endoscopic and percutaneous trans-hepatic approaches can successfully treat more than two-thirds of biliary complications. Relaparotomy can improve survival outcomes and is usually reserved for patients with intractable biliary complications. PMID- 29025384 TI - Renal Transplant Failure Due to Infiltrating Kaposi Sarcoma. AB - Kaposi sarcoma is one of the most common malignancies seen during the posttransplant period, and it usually manifests in its cutaneous form. Renal transplant involvement is rare, whereas renal transplant parenchymal involvement causing transplant dysfunction is exceptionally rare. We report a case of visceral Kaposi sarcoma that led to renal transplant failure due to neoplastic infiltration of the renal allograft. PMID- 29025383 TI - Repair of Bile Duct Injury With Autologous Vein Graft and Stent. AB - OBJECTIVES: We investigated the effects of autologous vein transplant on bile duct injury repair, through observation of the hepatic and biliary system tissue morphology changes and animal survival after bile duct injury repair. MATERIALS AND METHODS: Rabbits were equally divided into groups. Group A had cholecystectomy and common bile duct resection (length of 0.5 cm), transplant of an autologous vein (length of 0.5 cm), and stent implant. Group B had cholecystectomy and common bile duct resection (length of 1.0 cm), transplant of an autologous vein (length of 1.0 cm), and stent implant. The third group (group C) had cholecystectomy only. RESULTS: Two rabbits died in group A and group B; all experimental animals from group C survived. Regarding liver biochemical indexes at preoperative week 1, at postoperative month 1, and at postoperative month 3, we found no significant differences (paired t test, P > .05). Liver biochemical indexes between groups were also not significantly different (P > .05). At month 3, postoperative liver pathology of experimental animals showed no significant changes and no cholestasis; biliary epithelial cells were seen in the transplant vascular. CONCLUSIONS: We conclude that autologous vein graft can effectively repair bile duct injury for a short coloboma. PMID- 29025385 TI - The Impact of Preoperative Variables on Intraoperative Blood Loss and Transfusion Requirements During Orthotopic Liver Transplant. AB - OBJECTIVES: Liver transplant traditionally and potentially is associated with the risk of massive blood loss and transfusion, which can adversely affect transplant outcomes. Many variables influence the amount of bleeding, and these can be categorized as patient related, surgery related, and graft related. We aimed to assess the effects of these variables on the amount of bleeding and transfusion during liver transplant; predicting the risk of massive blood loss can help transplant teams to select and manage patients more effectively. MATERIALS AND METHODS: We retrospectively studied 754 patients who underwent liver transplant from 2013 to 2016 and analyzed more than 20 variables that could influence the volume of blood loss and packed cell transfusion. RESULTS: We found that at least 4 variables are strongly and independently correlated with blood loss volume: age, Model for End-Stage Liver Disease score, warm ischemia time, and total bilirubin. Furthermore, intraoperative blood loss had a weak but clinically important correlation with the underlying disease (ie, the cause of liver cirrhosis). Some variables, including international normalized ratio, platelet count, albumin, serum urea nitrogen, creatinine level, sodium level, and the amount of ascites, could be considered as 'dependent' and weak predictors of massive blood loss. Sex of patient, cold ischemia time, surgery technique, and history of previous abdominal surgery were not correlated with the amount of bleeding. CONCLUSIONS: With the use of the variables identified, we can properly select patients and surgical teams and promptly use modalities for decreasing and managing blood loss. PMID- 29025386 TI - Preoperative Cardiac Risk Assessment in Renal Transplant Recipients: A Single Center Experience. AB - OBJECTIVES: Cardiovascular disease is the major cause of morbidity and mortality in patients on renal replacement therapy and in kidney transplant recipients. There are no specific recommendations for preoperative cardiac risk assessment before renal transplant. The aim of our study was to analyze preoperative cardiac test frequencies, test results, patient characteristics, and relations between cardiac stress test results and severe coronary artery disease. MATERIALS AND METHODS: We retrospectively examined patients who underwent renal transplant between December 2011 and December 2016 in our hospital (Ankara, Turkey). Our study group included 216 patients. All patients had preoperative echocardiography. We recorded results of exercise stress tests, myocardial perfusion scintigraphy, and coronary angiography. For all patients, preoperative complete blood cell count, creatinine, high-density lipoprotein, triglycerides, low-density lipoprotein, and red cell distribution width values were obtained and recorded. RESULTS: We classified patient groups according to presence or absence of severe coronary artery disease. Fourteen of 66 patients had severe coronary artery disease. In univariate analyses, age, having a history of familial coronary artery disease, diabetes mellitus, presence of coronary artery disease, and triglyceride levels were risk factors for severe coronary artery disease. In multivariate analysis, diabetes mellitus, presence of coronary artery disease, and having a history of familial coronary artery disease were statistically significant. CONCLUSIONS: Renal transplant recipients are a special patient population, and there must be specific suggestions for this population. If patients present with more than 1 risk factor, a stress test should be performed to evaluate cardiovascular risk. In some patients, especially those whose risk factors include prior cardiovascular disease or diabetes mellitus, stress tests should be skipped and patients should directly undergo coronary angiography to look for severe coronary artery disease. PMID- 29025387 TI - In Vitro Study on Influences of UGT1A8 Gene Polymorphisms on Mycophenolate Mofetil Metabolism. AB - OBJECTIVES: Mycophenolate mofetil is a first-line drug after organ transplant, but there are differences in metabolism of mycophenolate mofetil among individuals. The UDP glucuronosyltransferase enzyme is the key metabolic enzyme for mycophenolate mofetil, and UGT1A8 gene polymorphisms may affect the elimination of mycophenolate mofetil in patients. Here, we conducted an in vitro study to explore the relation between UGT1A8 gene polymorphisms and mycophenolate mofetil metabolism. MATERIALS AND METHODS: Five mutant loci overexpression vectors (UGT1A8 128C>T, 157C>A, 431C>T, 518C>G, and 830G>A) were constructed by genetic recombination and site-directed mutagenesis. We used Lipo2000 (Invitrogen, Carlsbad, CA, USA) to transfect the vectors into HEK293 cells. Mycophenolic acid, the active ingredient of mycophenolate mofetil, was added to different groups of cells. We then used the liquid chromatography tandem-mass spectrometry technique to detect production of the metabolite 7-O-mycophenolic acid glucuronide and to evaluate activity of the UDP glucuronosyltransferase enzyme in cells with different overexpression vectors. RESULTS: Mutations of UGT1A8 157C>A and 518C>G vectors can lead to increased activity of UDP glucuronosyltransferase enzymes and increased production of the 7-O-mycophenolic acid glucuronide metabolite, which showed 116% (P < .001) and 107% (P = .0191) production changes of 157C>A and 518C>G mutations, respectively, relative to wild type UGT1A8. However, mutations of UGT1A8 431C>T and 830G>A loci resulted in decreased activity of UDP glucuronosyltransferase enzymes and decreased production of the metabolite, respectively showing 62.9% (P < .001) and 9.05% (P < .001) activity relative to wild-type UGT1A8. UGT1A8 128C>T had little effect on enzyme activity, with 96.8% activity relative to wild-type UGT1A8 (P = .0569). CONCLUSIONS: Our results showed that UGT1A8 gene polymorphisms can affect the activity of UDP glucuronosyltransferase enzyme, which may influence the elimination of mycophenolate mofetil in different patients. PMID- 29025388 TI - Editorial: Corticotropin Releasing Factor (CRF) and its Receptors: From Structure to Function in Health and Disease (Part I). PMID- 29025390 TI - Partitioning of functional gene expression data using principal points. AB - BACKGROUND: DNA microarrays offer motivation and hope for the simultaneous study of variations in multiple genes. Gene expression is a temporal process that allows variations in expression levels with a characterized gene function over a period of time. Temporal gene expression curves can be treated as functional data since they are considered as independent realizations of a stochastic process. This process requires appropriate models to identify patterns of gene functions. The partitioning of the functional data can find homogeneous subgroups of entities for the massive genes within the inherent biological networks. Therefor it can be a useful technique for the analysis of time-course gene expression data. We propose a new self-consistent partitioning method of functional coefficients for individual expression profiles based on the orthonormal basis system. RESULTS: A principal points based functional partitioning method is proposed for time-course gene expression data. The method explores the relationship between genes using Legendre coefficients as principal points to extract the features of gene functions. Our proposed method provides high connectivity in connectedness after clustering for simulated data and finds a significant subsets of genes with the increased connectivity. Our approach has comparative advantages that fewer coefficients are used from the functional data and self-consistency of principal points for partitioning. As real data applications, we are able to find partitioned genes through the gene expressions found in budding yeast data and Escherichia coli data. CONCLUSIONS: The proposed method benefitted from the use of principal points, dimension reduction, and choice of orthogonal basis system as well as provides appropriately connected genes in the resulting subsets. We illustrate our method by applying with each set of cell-cycle-regulated time-course yeast genes and E. coli genes. The proposed method is able to identify highly connected genes and to explore the complex dynamics of biological systems in functional genomics. PMID- 29025389 TI - Chromatin states responsible for the regulation of differentially expressed genes under 60Co~gamma ray radiation in rice. AB - BACKGROUND: The role of histone modifications in the DNA damage response has been extensively studied in non-plant systems, including mammals and yeast. However, there is a lack of detailed evidence showing how chromatin dynamics, either an individual mark or combined chromatin states, participate in regulating differentially expressed genes in the plant DNA damage response. RESULTS: In this study, we used RNA-seq and ChIP-seq to show that differentially expressed genes (DEGs), in response to ionizing radiation (IR), might be involved in different pathways responsible for the DNA damage response. Moreover, chromatin structures associated with promoters, exons and intergenic regions are significantly affected by IR. Most importantly, either an individual mark or a certain chromatin state was found to be highly correlated with the expression of up regulated genes. In contrast, only the chromatin states, as opposed to any individual marks tested, are related to the expression of the down-regulated genes. CONCLUSIONS: Our findings demonstrate that IR-related DEGs are modulated by distinct epigenetic mechanisms. Either chromatin states or distinct histone dynamics may act sequentially or in combination in regulating up-regulated genes, but the complex chromatin structure is mainly responsible for the expression of down-regulated genes. Thus, this study provides new insights into how up- and down-regulated genes are epigenetically regulated at the chromatin levels, thereby helping us to understand distinct epigenetic mechanisms that function in the plant DNA damage response. PMID- 29025391 TI - Identification of putative markers linked to grain plumpness in rice (Oryza sativa L.) via association mapping. AB - BACKGROUND: Poor grain plumpness (GP) is one of the main constraints to reaching the yield potential of hybrid rice. RESULTS: In this study, the GP of 177 rice varieties was investigated in three locations across 2 years. By combining the genotype data of 261 simple sequence repeat (SSR) markers, association mapping was conducted to identify the marker-GP association loci. Among 31 marker-GP association loci detected in two or more environments and determined using general linear model (GLM) analyses, seven association loci were also detected using mixed linear model (MLM) analyses. The seven common loci detected by the two analytical methods were located on chromosomes 2, 3 (2), 7, 8 and 12 (2) and explained 7.24~22.28% of the variance. Of these 7 association loci, five markers linked to GP were newly detected: RM5340 on Chr2, RM5480 and RM148 on Chr3, RM1235 on Chr8, and RM5479 on Chr12. CONCLUSIONS: Five marker-GP association loci were newly detected using both the GLM and MLM analytical methods. Elite allele RM505-170 bp had the highest average phenotypic effect on increasing the GP, and the typical carrier variety was 'Maozitou'. Based on the distribution of the elite alleles among the carrier varieties, the top 10 parental combinations for improving the GP in rice via cross-breeding were predicted. PMID- 29025392 TI - Co-founding ant queens prevent disease by performing prophylactic undertaking behaviour. AB - BACKGROUND: Social insects form densely crowded societies in environments with high pathogen loads, but have evolved collective defences that mitigate the impact of disease. However, colony-founding queens lack this protection and suffer high rates of mortality. The impact of pathogens may be exacerbated in species where queens found colonies together, as healthy individuals may contract pathogens from infectious co-founders. Therefore, we tested whether ant queens avoid founding colonies with pathogen-exposed conspecifics and how they might limit disease transmission from infectious individuals. RESULTS: Using Lasius niger queens and a naturally infecting fungal pathogen Metarhizium brunneum, we observed that queens were equally likely to found colonies with another pathogen exposed or sham-treated queen. However, when one queen died, the surviving individual performed biting, burial and removal of the corpse. These undertaking behaviours were performed prophylactically, i.e. targeted equally towards non infected and infected corpses, as well as carried out before infected corpses became infectious. Biting and burial reduced the risk of the queens contracting and dying from disease from an infectious corpse of a dead co-foundress. CONCLUSIONS: We show that co-founding ant queens express undertaking behaviours that, in mature colonies, are performed exclusively by workers. Such infection avoidance behaviours act before the queens can contract the disease and will therefore improve the overall chance of colony founding success in ant queens. PMID- 29025393 TI - Molecular basis of African yam domestication: analyses of selection point to root development, starch biosynthesis, and photosynthesis related genes. AB - BACKGROUND: After cereals, root and tuber crops are the main source of starch in the human diet. Starch biosynthesis was certainly a significant target for selection during the domestication of these crops. But domestication of these root and tubers crops is also associated with gigantism of storage organs and changes of habitat. RESULTS: We studied here, the molecular basis of domestication in African yam, Dioscorea rotundata. The genomic diversity in the cultivated species is roughly 30% less important than its wild relatives. Two percent of all the genes studied showed evidences of selection. Two genes associated with the earliest stages of starch biosynthesis and storage, the sucrose synthase 4 and the sucrose-phosphate synthase 1 showed evidence of selection. An adventitious root development gene, a SCARECROW-LIKE gene was also selected during yam domestication. Significant selection for genes associated with photosynthesis and phototropism were associated with wild to cultivated change of habitat. If the wild species grow as vines in the shade of their tree tutors, cultivated yam grows in full light in open fields. CONCLUSIONS: Major rewiring of aerial development and adaptation for efficient photosynthesis in full light characterized yam domestication. PMID- 29025394 TI - Prediction of Human Phenotype Ontology terms by means of hierarchical ensemble methods. AB - BACKGROUND: The prediction of human gene-abnormal phenotype associations is a fundamental step toward the discovery of novel genes associated with human disorders, especially when no genes are known to be associated with a specific disease. In this context the Human Phenotype Ontology (HPO) provides a standard categorization of the abnormalities associated with human diseases. While the problem of the prediction of gene-disease associations has been widely investigated, the related problem of gene-phenotypic feature (i.e., HPO term) associations has been largely overlooked, even if for most human genes no HPO term associations are known and despite the increasing application of the HPO to relevant medical problems. Moreover most of the methods proposed in literature are not able to capture the hierarchical relationships between HPO terms, thus resulting in inconsistent and relatively inaccurate predictions. RESULTS: We present two hierarchical ensemble methods that we formally prove to provide biologically consistent predictions according to the hierarchical structure of the HPO. The modular structure of the proposed methods, that consists in a "flat" learning first step and a hierarchical combination of the predictions in the second step, allows the predictions of virtually any flat learning method to be enhanced. The experimental results show that hierarchical ensemble methods are able to predict novel associations between genes and abnormal phenotypes with results that are competitive with state-of-the-art algorithms and with a significant reduction of the computational complexity. CONCLUSIONS: Hierarchical ensembles are efficient computational methods that guarantee biologically meaningful predictions that obey the true path rule, and can be used as a tool to improve and make consistent the HPO terms predictions starting from virtually any flat learning method. The implementation of the proposed methods is available as an R package from the CRAN repository. PMID- 29025396 TI - A description of the gross pathology of drowning and other causes of mortality in seabirds. AB - BACKGROUND: Mortality of seabirds due to anthropogenic causes, especially entrapment in fishing gear, is a matter of increasing international concern. This study aimed at characterising the gross pathology of seabirds that drowned in fishing nets and comparing it with that in other common causes of mortality. RESULTS: Post-mortem examinations were performed on 103 common guillemots, 32 razorbills, 37 shags and 5 great northern divers found stranded in Cornwall during 1981-2016. Pathology in birds that died in confirmed incidents of drowning in fishing nets (n = 95) was compared with that in cases of suspected drowning (n = 6), oil (n = 53) and polyisobutylene (PIB) (n = 3) pollution, adverse weather (n = 6) and stranding of unknown cause (14). The majority of drowned birds were in good nutritional state, freshly dead and approximately 50% had freshly ingested fish in their proximal gut. Principle lesions were: gross distention of the heart and major veins with dark blood, intensely congested, swollen and oedematous lungs which released white frothy fluid when excised, watery fluid in the air sacs that ranged from clear to deep red depending on state of carcase preservation. PIB-affected birds were in good nutritional state; their pathology was largely consistent with that in confirmed drowning cases; it is likely that drowning was the ultimate cause of death. Birds affected by oil, adverse weather or that stranded due to unknown cause were all in poor or emaciated condition, the mean body mass of the guillemots and razorbills being, respectively, 53 and 57% of those that drowned. They had little or no food in their alimentary tracts and many showed evidence of enteric inflammation, haemorrhage and ulceration. None had fluid in their air sacs and none showed significant cardio-respiratory system lesions. CONCLUSIONS: Drowned birds consistently showed a distinctive set of gross pathological lesions. When combined with contemporaneous observations, the pathology may be sufficient to permit a diagnosis of drowning, especially where a batch of freshly dead birds are examined. The observations in this study are likely to be of value when investigating stranding incidents, particularly where it is suspected that legislation aimed at protecting seabirds is not being complied with. PMID- 29025395 TI - Proposed risk factors for infection with multidrug-resistant pathogens in hemodialysis patients hospitalized with pneumonia. AB - BACKGROUND: In patients with hemodialysis-associated pneumonia (HDAP), information on both microbiologic features and antimicrobial strategies is limited. The aim of this study is to investigate predictive factors of infection with multidrug-resistant (MDR) pathogens in HDAP patients. METHODS: This was a multicenter, retrospective, and observational study. Enrolled patients were classified into MDR or non-MDR pathogens groups according to culture results. We examined risk factors of infection with MDR pathogens and created a decision support tool using these risk factors. RESULTS: MDR pathogens were identified in 24 (22.8%) out of a total of 105 HDAP patients. The most common MDR pathogens were methicillin-resistant Staphylococcus aureus (10 patients, 9.5%) and the isolation rate of Pseudomonas aeruginosa was 6.6%. Logistic regression showed two variables were associated with the isolation of MDR pathogens: recent hospitalization (adjusted odds ratio [OR]: 2.951, 95% confidence interval [CI]: 1.022-8.518) and PSI (Pneumonia Severity Index) score (adjusted OR: 1.023, 95% CI: 1.005-1.041). The optimal cut-off value for PSI score using a receiver operating characteristic curve analysis was 147. According to the presence of 0, 1, or 2 of the identified risk factors, the prevalence of MDR pathogens was 7.6, 28.2 and 64.2%, respectively (p < 0.001 for trend). The area under the curve of the prediction tool was 0.764 (95% CI: 0.652-0.875). CONCLUSIONS: We demonstrated that recent hospitalization and PSI > 147 are risk factors of infection with MDR pathogens in HDAP patients. This simple proposed tool would facilitate more accurate identification of MDR pathogens in these patients. PMID- 29025397 TI - A qualitative study of patient education needs for hip and knee replacement. AB - BACKGROUND: Quality health information is key to patient engagement, self management and an enhanced healthcare experience. There is strong evidence to support involving patients and their families in the development and evaluation of health-related educational material. These factors were the impetus for our high volume joint replacement centre to undertake a qualitative study to elicit patient experiences to inform the development of effective strategies and education along the care continuum for hip and knee replacement. METHODS: Purposively selected patients from postoperative follow-up clinics were recruited to participate in a focus group or telephone interview. We developed a semi structured interview guide that addressed four specific aspects of the patient's experience with educational material: pre-surgery, hospital stay, recovery period and future recommendations. The focus groups and interviews continued to the point of saturation and were audio-recorded and transcribed verbatim. Interview transcripts were coded and then inductively organized into larger categories using thematic analysis. RESULTS: Six focus groups and seven telephone interviews were conducted, totalling 32 participants. One of the key themes that emerged was a need for more education concerning pain management post-operatively; specifically, patients wanted more information on expected levels of pain, pain medication usage, management of side effects and guidelines for weaning off the medication. There was surprising variability in patients' descriptions of their pre-surgery, surgery and recovery experiences. These corresponded to an equally diverse range of preferences for educational content, delivery and timing. Many patients reported using the web while others preferred traditional formats for information delivery. There was some interest in receiving education using mobile technology. CONCLUSIONS: Our findings validate the importance of multi-modal patient education tailored to individual preferences and experiences, which may differ according to such characteristics as gender and age. The gap in pain management information is a critical finding for healthcare providers working with patients undergoing joint replacement. Developing pain management education in different formats that addresses frequently asked questions will enhance patient engagement and, their overall experience and recovery. PMID- 29025398 TI - Should community health workers offer support healthcare services to survivors of sexual violence? a systematic review. AB - BACKGROUND: Sexual violence is widespread, yet relatively few survivors receive healthcare or complete treatment. In low and middle-income countries, community health workers (CHWs) have the potential to provide support services to large numbers of survivors. The aim of this review was to document the role of CHWs in sexual violence services. We aimed to: 1) describe existing models of CHWs services including characteristics of CHWs, services delivered and populations served; 2) explore acceptability of CHWs' services to survivors and feasibility of delivering such services; and 3) document the benefits and challenges of CHW provided sexual violence services. METHODS: Quantitative and qualitative studies reporting on CHWs and other community-level paraprofessional volunteer services for sexual violence were eligible for inclusion. CHWs and sexual violence were defined according to WHO criteria. The review was conducted according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Quality of included studies was assessed using two quality assessment tools for quantitative, and, the methodology checklist by the National Institute for Health and Clinical Excellence for qualitative studies. Data were extracted and analysed separately for quantitative and qualitative studies and results integrated using a framework approach. RESULTS: Seven studies conducted in six countries (Democratic Republic of Congo, Rwanda, Burma, United States of America, Scotland, Israel) met the inclusion criteria. Different models of care had diverse CHWs roles including awareness creation, identifying, educating and building relationships with survivors, psychosocial support and follow up. Although sociocultural factors may influence CHWs' performance and willingness of survivors to use their services, studies often did not report on CHWs characteristics. Few studies assessed acceptability of CHWs' to survivors or feasibility of delivery of services. However, participants mentioned a range of benefits including decreased incidence of violence, CHWs being trusted, approachable, non-judgmental and compassionate. Challenges identified were high workload, confidentiality issues and community norms influencing performance. CONCLUSIONS: There is a dearth of research on CHWs services for sexual violence. Findings suggest that involving CHWs may be beneficial, but potential challenges and harms related to CHW-provided services exist. No different models of CHW provided care have been robustly evaluated for effects on patient outcomes. Further research to establish survivors' views on these services, and, their effectiveness is desperately needed. PMID- 29025400 TI - Increased amputation risk with canagliflozin treatment: behind the large cardiovascular benefit? AB - A growing body of evidence suggests that sodium-glucose cotransporter 2 (SGLT2) inhibitors appear to be a powerful option to improve the cardiovascular (CV) prognosis in high CV-risk patients with type 2 diabetes. Despite a significant reduction in major adverse CV events with SGLT2 inhibitor treatment, however, an unexpected increased risk of amputation was observed in the CANVAS program and the subsequent pharmacovigilance analysis. Although the underlying mechanisms are currently unknown, because amputation has a large negative impact on patient clinical course, clinicians want to know the exact reason for the increased amputation in the canagliflozin treatment. We herein discuss a need to elucidate the actual reasons with more appropriate statistical consideration, taking into account individual clinical course potentially involved in the diabetes-related amputation. Decreases in the hardendpoints by canagliflozin might result in an alternate increase in the other diabetes-related complications, including amputation. In addition, if amputation occurred after stopping canagliflozin, the incidence might be caused by worsened glycemic control and a decrease in hematocrit, accompanied by a subsequent worsening of diabetic foot disease. More detailed approach considering individual clinical course potentially involved in the amputation, would help to further unravel the cause for suspected risk of amputation with canagliflozin. PMID- 29025399 TI - Plasmodium falciparum EPCR-binding PfEMP1 expression increases with malaria disease severity and is elevated in retinopathy negative cerebral malaria. AB - BACKGROUND: Expression of group A and the A-like subset of group B Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) is associated with severe malaria (SM). The diversity of var sequences combined with the challenges of distinct classification of patient pathologies has made studying the role of distinct PfEMP1 variants on malaria disease severity challenging. The application of retinopathy in the recent years has provided a further method to clinically evaluate children with cerebral malaria (CM). The question of whether children with clinical CM but no retinopathy represent a completely different disease process or a subgroup within the spectrum of CM remains an important question in malaria. In the current study, we use newly designed primer sets with the best coverage to date in a large cohort of children with SM to determine the role of var genes in malaria disease severity and especially CM as discriminated by retinopathy. METHODS: We performed qRT-PCR targeting the different subsets of these var genes on samples from Ugandan children with CM (n = 98, of whom 50 had malarial retinopathy [RP] and 47 did not [RN]), severe malarial anemia (SMA, n = 47), and asymptomatic parasitemia (AP, n = 14). The primers used in this study were designed based on var sequences from 226 Illumina whole genome sequenced P. falciparum field isolates. RESULTS: Increasing severity of illness was associated with increasing levels of endothelial protein C receptor (EPCR)-binding PfEMP1. EPCR-binding PfEMP1 transcript levels were highest in children with combined CM and SMA and then decreased by level of disease severity: RP CM > RN CM > SMA > AP. CONCLUSIONS: The study findings indicate that PfEMP1 binding to EPCR is important in the pathogenesis of SM, including RN CM, and suggest that increased expression of EPCR-binding PfEMP1 is associated with progressively more severe disease. Agents that block EPCR-binding of PfEMP1 could provide novel interventions to prevent or decrease disease severity in malaria. PMID- 29025401 TI - Headache symptoms from migraine patients with and without aura through structure validated self-reports. AB - BACKGROUND: Headache symptoms self-reported by migraine patients are largely congruent with the clinician-used diagnostic criteria, but not always so. Patients' self-reports of headache symptoms might offer additional clues to characterize migraine with (MA) and without (MO) aura more precisely. METHODS: Firstly, we invited 324 participants with a life-long headache attack to answer an item-matrix measuring symptoms of primary headaches, then we performed both exploratory and confirmatory factor analyses to their answers and refined a headache symptom questionnaire. Secondly, we applied this questionnaire to 28 MA and 52 MO patients. RESULTS: In participants with a life-long headache, we refined a 27-item, structure-validated headache symptom questionnaire, with four factors (scales) namely the Somatic /Aura Symptoms, Gastrointestinal and Autonomic Symptoms, Tightness and Location Features, and Prodromal/Aggravating Symptoms. Further, we found that MA patients reported higher than did MO patients on the Somatic/Aura Symptoms and Tightness and Location Features scales. CONCLUSIONS: Compared to MO, MA was conferred with more prominent tightness and location features besides its higher somatic or aura symptoms. Patients' self reports of headache symptoms might offer more clues to distinguish two types of migraine besides their clinician-defined criteria. PMID- 29025402 TI - Rates of, and risk factors for, septic arthritis in patients with invasive pneumococcal disease: prospective cohort study. AB - BACKGROUND: There are many case reports of septic arthritis complicating invasive pneumococcal disease (IPD); however, no study has compared patients with IPD with septic arthritis to those who didn't develop septic arthritis Thus, we aimed to determine the rates of, and risk factors for, septic arthritis in patients with invasive pneumococcal disease (IPD). METHODS: Socio-demographic, clinical, and serological data were captured on all patients with IPD in Northern Alberta, Canada from 2000 to 2014. Septic arthritis was identified by attending physicians. Descriptive statistics and multivariate analyses were used to compare characteristics of those with septic arthritis and IPD to those who did not. RESULTS: Septic arthritis developed in 51 of 3251 (1.6%) of patients with IPD. Inability to walk independently, male sex, and underlying joint disease were risk factors for developing septic arthritis in patients with IPD. Capsular serotypes 22 and 12F were more common in patients with septic arthritis than those without. CONCLUSIONS: In patients with IPD, septic arthritis is uncommon. Certain risk factors such as walking with or without assistance and underlying joint disease make biological sense as damaged joints are more likely to be infected in the presence of bacteremia. TRIAL REGISTRATION: Not applicable. PMID- 29025403 TI - Tuberculosis among older adults in Zambia: burden and characteristics among a neglected group. AB - BACKGROUND: The 2010 Global Burden of Disease estimates show that 57% of all TB deaths globally occurred among adults older than 50 years of age. Few studies document the TB burden among older adults in Southern Africa. We focused on adults older than 55 years to assess the relative TB burden and associated demographic factors. METHODS: A cross sectional nationally representative TB prevalence survey conducted of Zambian residents aged 15 years and above from 66 clusters across all the 10 provinces of Zambia. Evaluation included testing for TB as well as an in-depth questionnaire. We compared survey data for those aged 55 and older to those aged 15-54 years. Survey results were also compared with 2013 routinely collected programmatic notification data to generate future hypotheses regarding active and passive case finding. RESULTS: Among older adults with TB, 30/ 54 (55.6%) were male, 3/27 (11.1%) were HIV infected and 35/54 (64.8%) lived in rural areas. TB prevalence was higher in those aged >=55 (0.7%) than in the 15-54 age group (0.5%). Males had higher rates of TB across both age groups with 0.7% (15-54) and 1.0% (>=55) compared with females 0.4% (15-54) and 0.6% (>=55). In rural areas, the prevalence of TB was significantly higher among older than younger adults (0.7% vs 0.3%), while the HIV infection rate was among TB patients was lower (11.1% vs 30.8%). The prevalence survey detected TB in 54/7484 (0.7%) of older adults compared to 3619/723,000 (0.5%) reported in 2013 programmatic data. CONCLUSION: High TB rates among older adults in TB endemic areas justify consideration of active TB case finding and prevention strategies. PMID- 29025404 TI - Working people with type 1 diabetes in the Finnish population. AB - BACKGROUND: The incidence of type 1 diabetes is increasing worldwide. Since so little is known about work life of individuals with type 1 diabetes, we examined incidence and prevalence trends of type 1 diabetes among working-aged Finns. We also investigated the employment rate and how workers with type 1 diabetes perceive their health and work ability, and their intended retirement age. METHODS: We analyzed changes in the incidence, prevalence, and employment rate using nationwide multi-register-based FinDM data, and estimated a Self-Rated Health, Work Ability Score, and inquired about retirement intentions of 767 working individuals with type 1 diabetes in a cross-sectional survey. All estimates were compared to the corresponding data of the Finnish general population. RESULTS: The average annual age-standardized incidence rate of type 1 diabetes among men aged 18-39 was 29 per 100,000/year; the incidence rate has increased by 33% from 1992 to 2007. Among women, the incidence remained at 16 per 100,000/year. Among working-aged (18-64) people, the age-standardized prevalence of type 1 diabetes increased by 39% among women and 33% among men. Two out of every three working aged individuals with type 1 diabetes were in the labor force; this is about 10% lower than in the Finnish population. The average age standardized employment rate among those individuals with type 1 diabetes belonging to the labor force was 82%, compared to 84% in the general population. Working individuals with type 1 diabetes rated their health and work ability as being slightly lower than the general working population, but nonetheless, there were no significant differences in retirement intentions. CONCLUSIONS: Between 1992 and 2007, the number of working-aged people and workers with type 1 diabetes increased by 35%. Most workers with type 1 diabetes manage as well at work as the general population. Special attention should be paid to workers with type 1 diabetes when they are diagnosed and/or report moderate or poor work ability. PMID- 29025405 TI - The anti-inflammatory function of HDL is impaired in type 2 diabetes: role of hyperglycemia, paraoxonase-1 and low grade inflammation. AB - BACKGROUND: Functional properties of high density lipoproteins (HDL) are increasingly recognized to play a physiological role in atheroprotection. Type 2 diabetes mellitus (T2DM) is characterized by low HDL cholesterol, but the effect of chronic hyperglycemia on the anti-inflammatory capacity of HDL, a metric of HDL function, is unclear. Therefore, the aim of the present study was to establish the impact of T2DM on the HDL anti-inflammatory capacity, taking paraoxonase-1 (PON-1) activity and low grade inflammation into account. METHODS: The HDL anti-inflammatory capacity, determined as the ability to suppress tumor necrosis factor-alpha (TNF-alpha) induced vascular cell adhesion molecule-1 (VCAM 1) mRNA expression in endothelial cells in vitro (higher values indicate lower anti-inflammatory capacity), PON-1 (arylesterase) activity, hs-C-reactive protein (hs-CRP), serum amyloid A (SAA) and TNF-alpha were compared in 40 subjects with T2DM (no insulin or statin treatment) and 36 non-diabetic subjects. RESULTS: T2DM was associated with impaired HDL anti-inflammatory capacity (3.18 vs 1.05 fold increase in VCAM-1 mRNA expression; P < 0.001), coinciding with decreased HDL cholesterol (P = 0.001), apolipoprotein A-I (P = 0.038) and PON-1 activity (P = 0.023), as well as increased hs-CRP (P = 0.043) and TNF-alpha (P = 0.005). In all subjects combined, age- and sex-adjusted multivariable linear regression analysis demonstrated that impaired HDL anti-inflammatory capacity was associated with hyperglycemia (beta = 0.499, P < 0.001), lower PON-1 activity (beta = - 0.192, P = 0.030) and higher hs-CRP (beta = 0.220, P = 0.016). CONCLUSIONS: The HDL anti inflammatory capacity is substantially impaired in T2DM, at least partly attributable to the degree of hyperglycemia, decreased PON-1 activity and enhanced low grade chronic inflammation. Decreased anti-inflammatory protection capacity of HDL conceivably contributes to the increased atherosclerosis risk associated with T2DM. PMID- 29025407 TI - Severe anemia due to pharyngeal leech infestation; a case report from Ethiopia. AB - BACKGROUND: Leeches are rare blood-sucking endoparasites. Swimming in streams and ponds as well as drinking contaminated water are the major ways to acquire leeches. CASE PRESENTATION: A 6 year old boy who came with a history of hematemesis, frequent spitting of blood stained saliva, fatigue and anorexia to a rural hospital in Ethiopia. This was a rare case of severe anemia caused by a single leech infestation of laryngopharynx that required blood transfusion. CONCLUSION: Leech infestation should be considered as a source of unexplained hematemesis, spitting of blood and severe anemia in rural areas. PMID- 29025406 TI - Impact of empagliflozin on subclinical left ventricular dysfunctions and on the mechanisms involved in myocardial disease progression in type 2 diabetes: rationale and design of the EMPA-HEART trial. AB - BACKGROUND: Asymptomatic left ventricular (LV) dysfunction is highly prevalent in type 2 diabetes patients. Unlike the other hypoglycemic drugs, SGLT2 inhibitors have shown potential benefits for reducing cardiovascular death and risk factors, aside from lowering plasma glucose levels. With this study we aim at determining whether the treatment with empagliflozin is associated with an improvement in LV functions in diabetic patients with asymptomatic LV dysfunction against Sitagliptin, which is presumably neutral on myocardial function. To determine changes in LV systolic and diastolic functions we will use speckle-tracking echocardiography, a novel sensitive, non-invasive, bedside method allowing the calculation of LV global longitudinal strain (GLS), an index of myocardial deformability, as well as 3D echocardiography, which allows a better evaluation of LV volumes and mass. METHODS: The EMPA-HEART trial will be a phase III, open label, active-controlled, parallel groups, single centre, exploratory study conducted in Pisa, Italy. A cohort of 75 diabetic patients with normal LV systolic (2D-Echo EF > 50%) and renal (eGFR sec MDRD > 60 ml/min/1.73 mq) functions and no evidence of valvular and/or ischemic heart disease will be randomized to either Empagliflozin 10 mg/die or Sitagliptin 100 mg/die. The primary outcome is to detect a change in GLS from baseline to 1 and 6 months after treatment initiation. The secondary outcomes include changes from baseline to 6 months in 3-D Echocardiography EF, left atrial volume and E/E', VO2max as measured at cardiopulmonary test, cardiac autonomic function tests (R-R interval during Valsalva manoeuvre, deep-breathing, lying-to-standing), and the determination of a set of plasma biomarkers aimed at studying volume, inflammation, oxidative stress, matrix remodelling, myocyte strain and injury. DISCUSSION: SGLT2 inhibitors might affect myocardial functions through mechanisms acting both directly and indirectly on the myocardium. The set of instrumental and biohumoral tests of our study might actually detect the presence and entity of empagliflozin beneficial effects on the myocardium and shed light on the mechanisms involved. Further, this study might eventually provide information to design a clinical strategy, based on echocardiography and/or biomarkers, to select the patients who might benefit more from this intervention. Trial registration EUDRACT Code 2016-0022250-10. PMID- 29025408 TI - Synteny analysis of genes and distribution of loci controlling oil content and fatty acid profile based on QTL alignment map in Brassica napus. AB - BACKGROUND: Deciphering the genetic architecture of a species is a good way to understand its evolutionary history, but also to tailor its profile for breeding elite cultivars with desirable traits. Aligning QTLs from diverse population in one map and utilizing it for comparison, but also as a basis for multiple analyses assure a stronger evidence to understand the genetic system related to a given phenotype. RESULTS: In this study, 439 genes involved in fatty acid (FA) and triacylglycerol (TAG) biosyntheses were identified in Brassica napus. B. napus genome showed mixed gene loss and insertion compared to B. rapa and B. oleracea, and C genome had more inserted genes. Identified QTLs for oil (OC-QTLs) and fatty acids (FA-QTLs) from nine reported populations were projected on the physical map of the reference genome "Darmor-bzh" to generate a map. Thus, 335 FA QTLs and OC-QTLs could be highlighted and 82 QTLs were overlapping. Chromosome C3 contained 22 overlapping QTLs with all trait studied except for C18:3. In total, 218 candidate genes which were potentially involved in FA and TAG were identified in 162 QTLs confidence intervals and some of them might affect many traits. Also, 76 among these candidate genes were found inside 57 overlapping QTLs, and candidate genes for oil content were in majority (61/76 genes). Then, sixteen genes were found in overlapping QTLs involving three populations, and the remaining 60 genes were found in overlapping QTLs of two populations. Interaction network and pathway analysis of these candidate genes indicated ten genes that might have strong influence over the other genes that control fatty acids and oil formation. CONCLUSION: The present results provided new information for genetic basis of FA and TAG formation in B. napus. A map including QTLs from numerous populations was built, which could serve as reference to study the genome profile of B. napus, and new potential genes emerged which might affect seed oil. New useful tracks were showed for the selection of population or/and selection of interesting genes for breeding improvement purpose. PMID- 29025409 TI - Genes for asparagine metabolism in Lotus japonicus: differential expression and interconnection with photorespiration. AB - BACKGROUND: Asparagine is a very important nitrogen transport and storage compound in plants due to its high nitrogen/carbon ratio and stability. Asparagine intracellular concentration depends on a balance between asparagine biosynthesis and degradation. The main enzymes involved in asparagine metabolism are asparagine synthetase (ASN), asparaginase (NSE) and serine-glyoxylate aminotransferase (SGAT). The study of the genes encoding for these enzymes in the model legume Lotus japonicus is of particular interest since it has been proposed that asparagine is the principal molecule used to transport reduced nitrogen within the plant in most temperate legumes. RESULTS: A differential expression of genes encoding for several enzymes involved in asparagine metabolism was detected in L. japonicus. ASN is encoded by three genes, LjASN1 was the most highly expressed in mature leaves while LjASN2 expression was negligible and LjASN3 showed a low expression in this organ, suggesting that LjASN1 is the main gene responsible for asparagine synthesis in mature leaves. In young leaves, LjASN3 was the only ASN gene expressed although at low levels, while all the three genes encoding for NSE were highly expressed, especially LjNSE1. In nodules, LjASN2 and LjNSE2 were the most highly expressed genes, suggesting an important role for these genes in this organ. Several lines of evidence support the connection between asparagine metabolic genes and photorespiration in L. japonicus: a) a mutant plant deficient in LjNSE1 showed a dramatic decrease in the expression of the two genes encoding for SGAT; b) expression of the genes involved in asparagine metabolism is altered in a photorespiratory mutant lacking plastidic glutamine synthetase; c) a clustering analysis indicated a similar pattern of expression among several genes involved in photorespiratory and asparagine metabolism, indicating a clear link between LjASN1 and LjSGAT genes and photorespiration. CONCLUSIONS: The results obtained in this paper indicate the existence of a differential expression of asparagine metabolic genes in L. japonicus and point out the crucial relevance of particular genes in different organs. Moreover, the data presented establish clear links between asparagine and photorespiratory metabolic genes in this plant. PMID- 29025410 TI - Association between traditional cardiovascular risk factors and mortality in the oldest old: untangling the role of frailty. AB - BACKGROUND: To date, there is no consensus regarding cardiovascular risk management in the very old. Studies have shown that the relationship between traditional cardiovascular risk factors and mortality is null or even inverted within this age group. This relationship could be modified by the presence of frailty. This study was performed to examine the effect of frailty on the association between cardiovascular risk factors and mortality in the oldest old. METHODS: The BELFRAIL study is a prospective, observational, population-based cohort study of 567 subjects aged 80 years and older. Data on cardiovascular risk factors were recorded. Frailty was assessed using three different models: the Groningen Frailty Indicator, Fried and Puts models. Participants were considered robust if they were 'not frail' according to all three models, and frail if they met the frailty criteria for one of the three models. The follow-up data on mortality and cause of death were registered. RESULTS: No cardiovascular risk factor was associated with mortality in subjects with and without cardiovascular disease. The presence of frailty was a strong risk factor for mortality [HR: 2.5, 95%CI: (1.9-3.2) for all-cause mortality; HR: 2.2, 95%CI: (1.4-3.4) for cardiovascular mortality]. In robust patients, a history of cardiovascular disease increased the risk for mortality [HR: 1.7, 95%CI: (1.1-2.5) for all-cause mortality; HR: 2.2, 95%CI: (1.2-3.9) for cardiovascular mortality]. In frail patients, there was no association between any of the traditional risk factors and mortality. CONCLUSIONS: Traditional cardiovascular risk factors were not associated with mortality in very old subjects. Frailty was shown to be a strong risk factor for mortality in this age group. However, frailty could not be used to identify additional subjects who might benefit more from cardiovascular risk management. PMID- 29025411 TI - Maize RNA PolIV affects the expression of genes with nearby TE insertions and has a genome-wide repressive impact on transcription. AB - BACKGROUND: RNA-directed DNA methylation (RdDM) is a plant-specific epigenetic process that relies on the RNA polymerase IV (Pol IV) for the production of 24 nucleotide small interfering RNAs (siRNA) that guide the cytosine methylation and silencing of genes and transposons. Zea mays RPD1/RMR6 gene encodes the largest subunit of Pol IV and is required for normal plant development, paramutation, transcriptional repression of certain transposable elements (TEs) and transcriptional regulation of specific alleles. RESULTS: In this study we applied a total RNA-Seq approach to compare the B73 and rpd1/rmr6 leaf transcriptomes. Although previous studies indicated that loss of siRNAs production in RdDM mutants provokes a strong loss of CHH DNA methylation but not massive gene or TEs transcriptional activation in both Arabidopsis and maize, our total RNA-Seq analysis of rpd1/rmr6 transcriptome reveals that loss of Pol IV activity causes a global increase in the transcribed fraction of the maize genome. Our results point to the genes with nearby TE insertions as being the most strongly affected by Pol IV-mediated gene silencing. TEs modulation of nearby gene expression is linked to alternative methylation profiles on gene flanking regions, and these profiles are strictly dependent on specific characteristics of the TE member inserted. Although Pol IV is essential for the biogenesis of siRNAs, the genes with associated siRNA loci are less affected by the pol IV mutation. CONCLUSIONS: This deep and integrated analysis of gene expression, TEs distribution, smallRNA targeting and DNA methylation levels, reveals that loss of Pol IV activity globally affects genome regulation, pointing at TEs as modulator of nearby gene expression and indicating the existence of multiple level epigenetic silencing mechanisms. Our results also suggest a predominant role of the Pol IV-mediated RdDM pathway in genome dominance regulation, and subgenome stability and evolution in maize. PMID- 29025413 TI - Carbohydrate-active enzymes in Trichoderma harzianum: a bioinformatic analysis bioprospecting for key enzymes for the biofuels industry. AB - BACKGROUND: Trichoderma harzianum is used in biotechnology applications due to its ability to produce powerful enzymes for the conversion of lignocellulosic substrates into soluble sugars. Active enzymes involved in carbohydrate metabolism are defined as carbohydrate-active enzymes (CAZymes), and the most abundant family in the CAZy database is the glycoside hydrolases. The enzymes of this family play a fundamental role in the decomposition of plant biomass. RESULTS: In this study, the CAZymes of T. harzianum were identified and classified using bioinformatic approaches after which the expression profiles of all annotated CAZymes were assessed via RNA-Seq, and a phylogenetic analysis was performed. A total of 430 CAZymes (3.7% of the total proteins for this organism) were annotated in T. harzianum, including 259 glycoside hydrolases (GHs), 101 glycosyl transferases (GTs), 6 polysaccharide lyases (PLs), 22 carbohydrate esterases (CEs), 42 auxiliary activities (AAs) and 46 carbohydrate-binding modules (CBMs). Among the identified T. harzianum CAZymes, 47% were predicted to harbor a signal peptide sequence and were therefore classified as secreted proteins. The GH families were the CAZyme class with the greatest number of expressed genes, including GH18 (23 genes), GH3 (17 genes), GH16 (16 genes), GH2 (13 genes) and GH5 (12 genes). A phylogenetic analysis of the proteins in the AA9/GH61, CE5 and GH55 families showed high functional variation among the proteins. CONCLUSIONS: Identifying the main proteins used by T. harzianum for biomass degradation can ensure new advances in the biofuel production field. Herein, we annotated and characterized the expression levels of all of the CAZymes from T. harzianum, which may contribute to future studies focusing on the functional and structural characterization of the identified proteins. PMID- 29025414 TI - HIV infected men who have sex with men in Israel: knowledge, attitudes and sexual behavior. AB - BACKGROUND: HIV-infected (HIVI) men who have sex with men (MSM) may transmit HIV to their sero-discordant sex partner/s. This study assesses the knowledge, attitudes and sex-practices of Israeli HIVI-MSM. METHODS: This cross-sectional study compared HIVI-MSM to self-reported HIV-uninfected (HIVU) MSM by using anonymous questionnaires that were distributed in AIDS-treatment centers and gay related internet-sites in 2015. Unprotected anal intercourse (UAI) in the last 6 months was the outcome variable. RESULTS: Of 300 HIVI-MSM and 1299 HIVU-MSM, UAI with sero-discordant/unknown-status partner/s was performed by 12.1% and 17.9%, respectively, p=0.02. UAI with sero-discordant/unknown-status among HIVI-MSM and HIVU-MSM was associated with the type of partnership: 37.7% vs. 52.4% for steady partner/s, 19.0% vs. 39.9% for sex-buddies and 23.5% vs. 24.0% for casual partner/s (p<0.001, p=0.01, p=0.6), respectively. On these occasions, HIVI-MSM were more likely to be receptive during UAI: 92.3%, 87.5% and 83.3% for steady partner/s, sex buddies and casual partner/s, respectively. In cases HIVI-MSM performed UAI, 31.3% expected their partner/s to share responsibility for condom use vs. 9.7% of HIVU-MSM. HIVI-MSM were involved in risky sexual-behaviors, such as substances-use, earlier sexual debut and sex for money. HIVI-MSM were more likely to disclose their HIV-status with their partner before sex and demonstrated better knowledge about HIV-transmission than HIVU-MSM. CONCLUSION: HIVI-MSM performed UAI with sero-discordant/unknown-status partner/s less frequently than HIVU-MSM. Their condom-use practices were associated with the type of partner, and were lower for casual vs. steady partners or sex-buddies. HIVI-MSM tended to use sero-adaptive strategies to reduce the potential risk of HIV-transmission to their sero-discordant/unknown-status partner/s. PMID- 29025412 TI - Dynamic transcriptome and DNA methylome analyses on longissimus dorsi to identify genes underlying intramuscular fat content in pigs. AB - BACKGROUND: The intramuscular fat content (IMF) refers to the amount of fat within muscles, including the sum of phospholipids mainly found in cell membranes, triglycerides and cholesterol, and is determined both by hyperplasia and hypertrophy of adipocyte during the development of pigs. The IMF content is an important economic trait that is genetically controlled by multiple genes. The Laiwu pig is an indigenous fatty pig breed distributed in North China, characterized by excessively higher level of IMF content (9%~12%), therefore, is suitable for the identification of genes controlling IMF variations. To identify genes underlying IMF deposition, we performed genome-wide transcriptome and methylome analyses on longissimus dorsi (LD) muscle in Laiwu pigs across four developmental stages. RESULTS: A total of 22,524 expressed genes were detected and 1158 differentially expressed genes (DEGs) were hierarchically clustered in the LD muscle over four developmental stages from 60 d to 400 d. These genes were significantly clustered into four temporal expression profiles, and genes participating in fat cell differentiation and lipid biosynthesis processes were identified. From 120 d to 240 d, the period with the maximum IMF deposition rate, the lipid biosynthesis related genes (FOSL1, FAM213B and G0S2), transcription factors (TFs) (EGR1, KLF5, SREBF2, TP53 and TWIST1) and enriched pathways (steroid biosynthesis and fatty acid biosynthesis) were revealed; and fat biosynthesis relevant genes showing differences in DNA methylation in gene body or intergenic region were detected, such as FASN, PVALB, ID2, SH3PXD2B and EGR1. CONCLUSIONS: This study provides a comprehensive landscape of transcriptome of the LD muscle in Laiwu pigs ranging from 60 to 400 days old, and methylome of the LD muscle in 120 d and 240 d Laiwu pigs. A set of candidate genes and TFs involved in fat biosynthesis process were identified, which were probably responsible for IMF deposition. The results from this study would provide a reference for the identification of genes controlling IMF variation, and for exploring molecular mechanisms underlying IMF deposition in pigs. PMID- 29025415 TI - Genetic evidence of multiple invasions and a small number of founders of Asian Palmyra palm (Borassus flabellifer) in Thailand. AB - BACKGROUND: Borassus flabellifer or Asian Palmyra palm is an important crop for local economies in the South and Southeast Asia for its fruit and palm sugar production. Archeological and historical evidence indicated the presence of this species in Southeast Asia dating back at least 1500 years. B. flabellifer is believed to be originated in Africa, spread to South Asia and introduced into Southeast Asia through commercial routes and dissemination of cultures, however, the nature of its invasion and settlement in Thailand is unclear. RESULTS: Here, we analyzed genetic data of 230 B. flabellifer accessions across Thailand using 17 EST-SSR and 12 gSSR polymorphic markers. Clustering analysis revealed that the population consisted of two genetic clusters (STRUCTURE K = 2). Cluster I is found mainly in southern Thailand, while Cluster II is found mainly in the northeastern. Those found in the central are of an extensive mix between the two. These two clusters are in moderate differentiation (F ST = 0.066 and N M = 3.532) and have low genetic diversity (HO = 0.371 and 0.416; AR = 2.99 and 3.19, for the cluster I and II respectively). The minimum numbers of founders for each genetic group varies from 3 to 4 individuals, based on simulation using different allele frequency assumptions. These numbers coincide with that B. flabellifer is dioecious, and a number of seeds had to be simultaneously introduced for obtaining both male and female founders. CONCLUSIONS: From these data and geographical and historical evidence, we hypothesize that there were at least two different invasive events of B. flabellifer in Thailand. B. flabellifer was likely brought through the Straits of Malacca to be propagated in the southern Thailand as one of the invasive events before spreading to the central Thailand. The second event likely occurred in Khmer Empire, currently Cambodia, before spreading to the northeastern Thailand. PMID- 29025416 TI - Impact of renal function on the underlying pathophysiology of coronary plaque composition in patients with type 2 diabetes mellitus. AB - BACKGROUND: Both the progression of diabetic kidney disease and increased glycemic variability play important roles in the pathogenesis of coronary plaque formation via inflammatory pathways in patients with type 2 diabetes mellitus (T2DM). Therefore we evaluated the role of renal function in the contributory effects of blood glucose fluctuations and blood levels of inflammatory cytokine concentrations on the tissue characteristics of coronary plaques in patients with T2DM. METHODS: We prospectively enrolled 71 T2DM patients (mean age: 68 +/- 9, male 79%) with 153 coronary artery lesions. Patients were divided into 2 groups according to their estimated glomerular filtration rate (eGFR) levels: Group 1 (>= 60 mL/min/1.73 m2, n = 40) and Group 2 (< 60 mL/min/1.73 m2, n = 31). All patients underwent continuous glucose monitoring (CGM) for 120 h and the mean amplitude of glycemic excursions (MAGE) was calculated. Serum tumor necrosis factor (TNF)-alpha was also measured. In addition, gray-scale coronary intravascular ultrasound (IVUS) and iMap-IVUS were performed in the coronary lesions with < 50% luminal reduction. RESULTS: In Group 1, MAGE correlated with percent lipidic volume (%LV) (r = 0.477, p = 0.002). In this group, stepwise multivariate linear regression analyses showed that only MAGE was independently associated with %LV (beta = 0.477, p = 0.002). In contrast, in Group 2, only serum TNF-alpha correlated with percent fibrotic volume (%FV) (r = - 0.471, p = 0.007), %LV (r = 0.496, p = 0.005) and percent necrotic volume (%NV) (r = 0.426, p = 0.017). In this group, stepwise multivariate linear regression analyses showed that only serum TNF-alpha was independently associated with each tissue characteristic (%FV beta = - 0.471 and p = 0.007, %LV beta = 0.496 and p = 0.005, %NV: beta = 0.426 and p = 0.017). CONCLUSIONS: In T2DM patients, the tissue characteristics of coronary plaques were associated with MAGE in patients with eGFR >= 60 mL/min/1.73 m2 and with serum TNF-alpha in those with eGFR < 60 mL/min/1.73 m2. PMID- 29025417 TI - Human rights and mental health in post-apartheid South Africa: lessons from health care professionals working with suicidal inmates in the prison system. AB - BACKGROUND: During the era of apartheid in South Africa, a number of mental health professionals were vocal about the need for socio-economic and political reform. They described the deleterious psychological and social impact of the oppressive and discriminatory Nationalist state policies. However, they remained optimistic that democracy would usher in positive changes. In this article, we consider how mental health professionals working in post-apartheid South Africa experience their work. METHODS: Our aim was to describe the experience of mental health professionals working in prisons who provide care to suicidal prisoners. Data were collected from in-depth semi-structured interviews and were analyzed using thematic content analysis. RESULTS: Findings draw attention to the challenges mental health professionals in post-apartheid South Africa face when attempting to provide psychological care in settings where resources are scarce and where the environment is anti-therapeutic. Findings highlight the significant gap between current policies, which protect prisoners' human rights, and every day practices within prisons. CONCLUSIONS: The findings imply that there is still an urgent need for activism in South Africa, particularly in the context of providing mental health care services in settings which are anti-therapeutic and inadequately resourced, such as prisons. PMID- 29025418 TI - Food purchase patterns: empirical identification and analysis of their association with diet quality, socio-economic factors, and attitudes. AB - BACKGROUND: Empirically derived food purchase patterns provide information about which combinations of foods were purchased from households. The objective of this study was to identify what kinds of patterns exist, which level of diet quality they represent and which factors are associated with the patterns. METHODS: The study made use of representative German consumption data in which approximately 12 million food purchases from 13,125 households are recorded. In accordance with healthy diet criteria the food purchases were assigned to 18 food groups of the German Food Pyramid. Based on these groups a factor analysis with a principal component technique was applied to identify food patterns. For these patterns nutrient and energy densities were examined. Using regression analysis, associations between pattern scores and socio-economic as well as attitude variables, reflecting personal statements about healthy eating, were analyzed. RESULTS: In total, three food purchase patterns could be identified: a natural, a processed and a traditional one. The first one was characterized by a higher purchasing of natural foods, the second by an increased purchasing of processed foods and the third by a meat-oriented diet. In each pattern there were specific diet quality criteria that could be improved whereas others were in line with actual dietary guidelines. In addition to socio-demographic factors, attitudes were significantly associated with the purchase patterns. CONCLUSIONS: The findings of this study are interesting from a public health perspective, as it can be assumed that measures focusing on specific aspects of diet quality are more promising than general ones. However, it is a major challenge to identify the population groups with their specific needs of improvement. As the patterns were associated with both socio-economic and attitude variables these grouping criteria could be used to define target groups. PMID- 29025419 TI - Strong associations between national prevalence of various STIs suggests sexual network connectivity is a common underpinning risk factor. AB - BACKGROUND: If national peak Human Immunodeficiency Virus (HIV) prevalence is positively associated with the prevalence of other sexually transmitted infections (STIs) from before or early on in the HIV epidemics this would suggest common underlying drivers. METHODS: Pearson's correlations were calculated between the prevalence of seven STIs at a country-level: chlamydia, gonorrhoea, trichomoniasis, syphilis, bacterial vaginosis, herpes simplex virus-2 (HSV-2) and HIV. RESULTS: The prevalence of all the STIs was highest in the sub-Saharan African region excluding chlamydia. The prevalence of all seven STIs were positively correlated excluding chlamydia. The correlations were strongest for HIV-HSV-2 (r = 0.85, P < 0.0001) and HSV-2-trichomoniasis (r = 0.82, P < 0.0001). CONCLUSION: Our results of a generally positive association between the prevalences of a range of STIs suggests that higher prevalences were driven by common underlying determinants. We review different types of evidence which suggest that differential sexual connectivity is a plausible common determinant. PMID- 29025421 TI - Correction to: Optimization and validation of sample preparation for metagenomic sequencing of viruses in clinical samples. PMID- 29025420 TI - Genetic variation and population structure of maize inbred lines adapted to the mid-altitude sub-humid maize agro-ecology of Ethiopia using single nucleotide polymorphic (SNP) markers. AB - BACKGROUND: Molecular characterization is important for efficient utilization of germplasm and development of improved varieties. In the present study, we investigated the genetic purity, relatedness and population structure of 265 maize inbred lines from the Ethiopian Institute of Agricultural Research (EIAR), the International Maize and Wheat Improvement Centre (CIMMYT) and the International Institute of Tropical Agriculture (IITA) using 220,878 single nucleotide polymorphic (SNP) markers obtained using genotyping by sequencing (GBS). RESULTS: Only 22% of the inbred lines were considered pure with <5% heterogeneity, while the remaining 78% of the inbred lines had a heterogeneity ranging from 5.1 to 31.5%. Pairwise genetic distances among the 265 inbred lines varied from 0.011 to 0.345, with 89% of the pairs falling between 0.301 and 0.345. Only <1% of the pairs had a genetic distance lower than 0.200, which included 14 pairs of sister lines that were nearly identical. Relative kinship analysis showed that the kinship coefficients for 59% of the pairs of lines was close to zero, which agrees with the genetic distance estimates. Principal coordinate analysis, discriminant analysis of principal components (DAPC) and the model-based population structure analysis consistently suggested the presence of three groups, which generally agreed with pedigree information (genetic background). Although not distinct enough, the SNP markers showed some level of separation between the two CIMMYT heterotic groups A and B established based on pedigree and combining ability information. CONCLUSIONS: The high level of heterogeneity detected in most of the inbred lines suggested the requirement for purification or further inbreeding except those deliberately maintained at early inbreeding level. The genetic distance and relative kinship analysis clearly indicated the uniqueness of most of the inbred lines in the maize germplasm available for breeders in the mid-altitude maize breeding program of Ethiopia. Results from the present study facilitate the maize breeding work in Ethiopia and germplasm exchange among breeding programs in Africa. We suggest the incorporation of high density molecular marker information in future heterotic group assignments. PMID- 29025422 TI - Readout-segmented multi-shot diffusion-weighted MRI of the knee joint in patients with juvenile idiopathic arthritis. AB - BACKGROUND: Diffusion-weighted MRI has been proposed as a new technique for imaging synovitis without intravenous contrast application. We investigated diagnostic utility of multi-shot readout-segmented diffusion-weighted MRI (multi shot DWI) for synovial imaging of the knee joint in patients with juvenile idiopathic arthritis (JIA). METHODS: Thirty-two consecutive patients with confirmed or suspected JIA (21 girls, median age 13 years) underwent routine 1.5 T MRI with contrast-enhanced T1w imaging (contrast-enhanced MRI) and with multi shot DWI (RESOLVE, b-values 0-50 and 800 s/mm2). Contrast-enhanced MRI, representing the diagnostic standard, and diffusion-weighted images at b = 800 s/mm2 were separately rated by three independent blinded readers at different levels of expertise for the presence and the degree of synovitis on a modified 5 item Likert scale along with the level of subjective diagnostic confidence. RESULTS: Fourteen (44%) patients had active synovitis and joint effusion, nine (28%) patients showed mild synovial enhancement not qualifying for arthritis and another nine (28%) patients had no synovial signal alterations on contrast enhanced imaging. Ratings by the 1st reader on contrast-enhanced MRI and on DWI showed substantial agreement (kappa = 0.74). Inter-observer-agreement was high for diagnosing, or ruling out, active arthritis of the knee joint on contrast enhanced MRI and on DWI, showing full agreement between 1st and 2nd reader and disagreement in one case (3%) between 1st and 3rd reader. In contrast, ratings in cases of absent vs. little synovial inflammation were markedly inconsistent on DWI. Diagnostic confidence was lower on DWI, compared to contrast-enhanced imaging. CONCLUSION: Multi-shot DWI of the knee joint is feasible in routine imaging and reliably diagnoses, or rules out, active arthritis of the knee joint in paediatric patients without the need of gadolinium-based i.v. contrast injection. Possibly due to "T2w shine-through" artifacts, DWI does not reliably differentiate non-inflamed joints from knee joints with mild synovial irritation. PMID- 29025424 TI - Understanding immune phenotypes in human gastric disease tissues by multiplexed immunohistochemistry. AB - BACKGROUND: Understanding immune phenotypes and human gastric disease in situ requires an approach that leverages multiplexed immunohistochemistry (mIHC) with multispectral imaging to facilitate precise image analyses. METHODS: We developed a novel 4-color mIHC assay based on tyramide signal amplification that allowed us to reliably interrogate immunologic checkpoints, including programmed death ligand 1 (PD-L1), cytotoxic T cells (CD8+T) and regulatory T cells (Foxp3), in formalin-fixed, paraffin-embedded tissues of various human gastric diseases. By observing cell phenotypes within the disease tissue microenvironment, we were able to determine specific co-localized staining combinations and various measures of cell density. RESULTS: We found that PD-L1 was expressed in gastric ulcer and in tumor cells (TCs), as well as in tumor-infiltrating immune cells (TIICs), but not in normal gastric mucosa or other gastric intraepithelial neoplastic tissues. Furthermore, we found no significant reduction in CD8+T cells, whereas the ratio of CD8+T:Foxp3 cells and CD8+T:PD-L1 cells was suppressed in tumor tissues and elevated in adjacent normal tissues. An unsupervised hierarchical analysis also identified correlations between CD8+T and Foxp3+ tumor-infiltrating lymphocyte (TIL) densities and average PD-L1 levels. Three main groups were identified based on the results of CD8+T:PD-L1 ratios in gastric tumor tissues. Furthermore, integrating CD8+T:Foxp3 ratios, which increased the complexity for immune phenotype status, revealed 6-7 clusters that enabled the separation of gastric cancer patients at the same clinical stage into different risk-group subsets. CONCLUSIONS: Characterizing immune phenotypes in human gastric disease tissues via multiplexed immunohistochemistry may help guide PD-L1 clinical therapy. Observing unique disease tissue microenvironments can improve our understanding of immune phenotypes and cell interactions within these microenvironments, providing the ability to predict safe responses to immunotherapies. PMID- 29025423 TI - Downregulation of NMI promotes tumor growth and predicts poor prognosis in human lung adenocarcinomas. AB - BACKGROUND: N-myc (and STAT) interactor (NMI) plays vital roles in tumor growth, progression, and metastasis. In this study, we identified NMI as a potential tumor suppressor in lung cancer and explored its molecular mechanism involved in lung cancer progression. METHODS: Human lung cancer cell lines and a mouse xenograft model was used to study the effect of NMI on tumor growth. The expression of NMI, COX-2 and relevant signaling proteins were examined by Western blot. Tissue microarray immunohistochemical analysis was performed to assess the correlation between NMI and COX-2 expression in lung cancer patients. RESULTS: NMI was highly expressed in normal lung cells and tissues, but lowly expressed in lung cancer cells and tissues. Overexpression of NMI induced apoptosis, suppressed lung cancer cell growth and migration, which were mediated by up regulation of the cleaved caspase-3/9 and down-regulation of phosphorylated PI3K/AKT, MMP2/MMP9, beta-cadherin, and COX-2/PGE2. In contrast, knockdown of NMI promoted lung cancer cell colony formation and migration, which were correlated with the increased expression of phosphorylated PI3K/AKT, MMP2/MMP9, beta cadherin and COX-2/PGE2. Further study showed that NMI suppressed COX-2 expression through inhibition of the p50/p65 NF-kappaB acetylation mediated by p300. The xenograft lung cancer mouse models also confirmed the NMI-mediated suppression of tumor growth by inhibiting COX-2 signaling. Moreover, tissue microarray immunohistochemical analysis of lung adenocarcinomas also demonstrated a negative correlation between NMI and COX-2 expression. Kaplan-Meier analysis indicated that the patients with high level of NMI had a significantly better prognosis. CONCLUSIONS: Our study showed that NMI suppressed tumor growth by inhibiting PI3K/AKT, MMP2/MMP9, COX-2/PGE2 signaling pathways and p300-mediated NF-kappaB acetylation, and predicted a favorable prognosis in human lung adenocarcinomas, suggesting that NMI was a potential tumor suppressor in lung cancer. PMID- 29025425 TI - Prognostic utility of differential tissue characterization of cardiac neoplasm and thrombus via late gadolinium enhancement cardiovascular magnetic resonance among patients with advanced systemic cancer. AB - BACKGROUND: Late gadolinium enhancement (LGE-) cardiovascular magnetic resonance (CMR) is well-validated for cardiac mass (CMASS) tissue characterization to differentiate neoplasm (CNEO) from thrombus (CTHR): Prognostic implications of CMASS subtypes among systemic cancer patients are unknown. METHODS: CMASS + patients and controls (CMASS -) matched for cancer diagnosis and stage underwent a standardized CMR protocol, including LGE-CMR (IR-GRE) for tissue characterization and balanced steady state free precession cine-CMR (SSFP) for cardiac structure/function. CMASS subtypes (CNEO, CTHR) were respectively defined by presence or absence of enhancement on LGE-CMR; lesions were quantified for tissue properties (contrast-to-noise ratio (CNR); signal-to-noise ratio (SNR) and size. Clinical follow-up was performed to evaluate prognosis in relation to CMASS etiology. RESULTS: The study population comprised 126 patients with systemic neoplasms referred for CMR, of whom 50% (n = 63) had CMASS + (CNEO = 32%, CTHR = 18%). Cancer etiology differed between CNEO (sarcoma = 20%, lung = 18%) and CTHR (lymphoma = 30%, GI = 26%); cardiac function (left ventricular ejection fraction: 63 +/- 9 vs. 62 +/- 10%; p = 0.51? right ventricular ejection fraction: 53 +/- 9 vs. 54 +/- 8%; p = 0.47) and geometric indices were similar (all p = NS). LGE-CMR tissue properties assessed by CNR (13.1 +/- 13.0 vs. 1.6 +/- 1.0; p < 0.001) and SNR (29.7 +/- 20.4 vs. 15.0 +/- 11.4, p = 0.003) were higher for CNEO, consistent with visually-assigned diagnostic categories. CTHR were more likely to localize to the right atrium (78% vs. 25%, p < 0.001); nearly all (17/18) were associated with central catheters. Lesion size (17.3 +/- 23.8 vs. 2.0 +/- 1.5 cm2; p < 0.001) was greater with CNEO vs. CTHR, as was systemic disease burden (cancer involved organs: 3.6 +/- 2.0 vs. 2.3 +/- 2.1; p = 0.02). Mortality during a median follow-up of 2.5 years was markedly higher among patients with CNEO compared to those with CTHR (HR = 3.13 [CI 1.54-6.39], p = 0.002); prognosis was similar when patients were stratified by lesion size assessed via area (HR = 0.99 per cm2 [CI 0.98-1.01], p = 0.40) or maximal diameter (HR = 0.98 per cm [CI 0.91 1.06], p = 0.61). CTHR conferred similar mortality risk compared to cancer matched controls without cardiac involvement (p = 0.64) whereas mortality associated with CNEO was slightly higher albeit non-significant (p = 0.12). CONCLUSIONS: Among a broad cancer cohort with cardiac masses, CNEO defined by LGE CMR tissue characterization conferred markedly poorer prognosis than CTHR, whereas anatomic assessment via cine-CMR did not stratify mortality risk. Both CNEO and CTHR are associated with similar prognosis compared to CMASS - controls matched for cancer type and disease extent. PMID- 29025427 TI - Adaptive hybrid robotic system for rehabilitation of reaching movement after a brain injury: a usability study. AB - BACKGROUND: Brain injury survivors often present upper-limb motor impairment affecting the execution of functional activities such as reaching. A currently active research line seeking to maximize upper-limb motor recovery after a brain injury, deals with the combined use of functional electrical stimulation (FES) and mechanical supporting devices, in what has been previously termed hybrid robotic systems. This study evaluates from the technical and clinical perspectives the usability of an integrated hybrid robotic system for the rehabilitation of upper-limb reaching movements after a brain lesion affecting the motor function. METHODS: The presented system is comprised of four main components. The hybrid assistance is given by a passive exoskeleton to support the arm weight against gravity and a functional electrical stimulation device to assist the execution of the reaching task. The feedback error learning (FEL) controller was implemented to adjust the intensity of the electrical stimuli delivered on target muscles according to the performance of the users. This control strategy is based on a proportional-integral-derivative feedback controller and an artificial neural network as the feedforward controller. Two experiments were carried out in this evaluation. First, the technical viability and the performance of the implemented FEL controller was evaluated in healthy subjects (N = 12). Second, a small cohort of patients with a brain injury (N = 4) participated in two experimental session to evaluate the system performance. Also, the overall satisfaction and emotional response of the users after they used the system was assessed. RESULTS: In the experiment with healthy subjects, a significant reduction of the tracking error was found during the execution of reaching movements. In the experiment with patients, a decreasing trend of the error trajectory was found together with an increasing trend in the task performance as the movement was repeated. Brain injury patients expressed a great acceptance in using the system as a rehabilitation tool. CONCLUSIONS: The study demonstrates the technical feasibility of using the hybrid robotic system for reaching rehabilitation. Patients' reports on the received intervention reveal a great satisfaction and acceptance of the hybrid robotic system. TRIAL REGISTRATION: Retrospective trial registration in ISRCTN Register with study ID ISRCTN12843006 . PMID- 29025428 TI - Compound heterozygosity for two GHR missense mutations in a patient affected by Laron Syndrome: a case report. AB - BACKGROUND: Mutations localized in the Growth Hormone Receptor (GHR) gene are often associated with the pathogenesis of Laron Syndrome, an autosomal recessive hereditary disorder characterized by severe growth retardation. Biochemically, patients present normal to high circulating GH levels, in presence of very low or undetectable IGF-I levels, which do not rise after rhGH treatment. CASE PRESENTATION: We describe the case of a 3.8 years old girl with symmetrical short stature (-3.76 SDS), low IGF-1 and IGFBP-3, in presence of normal GH levels. Parents were not relatives and there was no family history of short stature. During the second day of birth, she developed severe hypoglycaemia that required glucose infusion. She presented frontal bossing and depressed nasal bridge. IGF-1 generation test showed no response, suggesting a GH resistance evidence. In the hypothesis of Laron Syndrome, we decided to perform a molecular analysis of Growth Hormone Receptor (GHR) gene. This analysis demonstrated that the patient was compound heterozygote for two missense mutations. CONCLUSIONS: GHR gene mutations are a well demonstrated cause of GH insensitivity. In heterozygous patients, probably the normal stature may be achieved by a compensatory mechanism of GH secretion or signalling. On the contrary, in homozygous or compound heterozygous patients these compensatory mechanisms are inadequate, and short stature may be the consequence. PMID- 29025429 TI - Updated clinical guidelines experience major reporting limitations. AB - BACKGROUND: The Checklist for the Reporting of Updated Guidelines (CheckUp) was recently developed. However, so far, no systematic assessment of the reporting of updated clinical guidelines (CGs) exists. We aimed to examine (1) the completeness of reporting the updating process in CGs and (2) the inter-observer reliability of CheckUp. METHODS: We conducted a systematic assessment of the reporting of the updating process in a sample of updated CGs using CheckUp. We performed a systematic search to identify updated CGs published in 2015, developed by a professional society, reporting a systematic review of the evidence, and containing at least one recommendation. Three reviewers independently assessed the CGs with CheckUp (16 items). We calculated the median score per item, per domain, and overall, converting scores to a 10-point scale. Multiple linear regression analyses were used to identify differences according to country, type of organisation, scope, and health topic of updated CGs. We calculated the intraclass coefficient (ICC) and 95% confidence interval (95% CI) for domains and overall score. RESULTS: We included in total 60 updated CGs. The median domain score on a 10-point scale for presentation was 5.8 (range 1.7 to 10), for editorial independence 8.3 (range 3.3 to 10), and for methodology 5.7 (range 0 to 10). The median overall score on a 10-point scale was 6.3 (range 3.1 to 10). Presentation and justification items at recommendation level (respectively reported by 27 and 38% of the CGs) and the methods used for the external review and implementing changes in practice were particularly poorly reported (both reported by 38% of the CGs). CGs developed by a European or international institution obtained a statistically significant higher overall score compared to North American or Asian institutions (p = 0.014). Finally, the agreement among the reviewers on the overall score was excellent (ICC 0.88, 95% CI 0.75 to 0.95). CONCLUSIONS: The reporting of updated CGs varies considerably with significant room for improvement. We recommend using CheckUp to assess the updating process in updated CGs and as a blueprint to inform methods and reporting strategies in updating. PMID- 29025430 TI - Genetic architecture of lipid traits in the Hispanic community health study/study of Latinos. AB - BACKGROUND: Despite ethnic disparities in lipid profiles, there are few genome wide association studies investigating genetic variation of lipids in non European ancestry populations. In this study, we present findings from genetic association analyses for total cholesterol, low density lipoprotein cholesterol (LDL), high density lipoprotein cholesterol (HDL), and triglycerides in a large Hispanic/Latino cohort in the U.S., the Hispanic Community Health Study / Study of Latinos (HCHS/SOL). METHODS: We estimated a heritability of approximately 20% for each lipid trait, similar to previous estimates in Europeans. To search for novel lipid loci, we performed conditional association analysis in which the statistical model was adjusted for previously reported SNPs associated with any of the four lipid traits. SNPs that remained genome-wide significant (P < 5 * 10 8) after conditioning on known loci were evaluated for replication. RESULTS: We identified eight potentially novel lipid signals with minor allele frequencies <1%, none of which replicated. We tested previously reported SNP-trait associations for generalization to Hispanics/Latinos via a statistical framework. The generalization analysis revealed that approximately 50% of previously established lipid variants generalize to HCHS/SOL based on directional FDR r value < 0.05. Some failures to generalize were due to lack of power. CONCLUSIONS: These results demonstrate that many loci associated with lipid levels are shared across populations. PMID- 29025432 TI - Psychometric properties of the Diabetes Self-Management Questionnaire (DSMQ) in Urdu. AB - BACKGROUND: Numerous study tools on diabetes self-care have been introduced; however, most existing tools do not show expectable and meaningful correlations with patients' glycaemic control. The Diabetes Self-Management Questionnaire (DSMQ) was designed to appraise self-care activities which can predict glycaemic control outcomes. However, this tool has not been validated in Pakistan. Therefore, the aim of this study was to translate and examine the psychometric properties of the Urdu version of DSMQ among type 2 diabetes patients. METHOD: Standard forward-backward translation was used to translate the DSMQ into Urdu language. A convenience sample of 130 patients with type 2 diabetes was collected to assess the Urdu version's psychometric properties. Reliability was assessed by Cronbach's coefficient alpha and validity was assessed using confirmatory factor analysis and criterion-related correlations. RESULTS: High internal consistency was found for all DSMQ scales (Sum scale: alpha = 0.96, Glucose Management: 0.91; Dietary Control: 0.88; Physical Activity: 0.89; Health-Care Use: 0.73). The DSMQ subscales showed significant correlations with HbA1c (Glucose Management: -0.75; Dietary Control: -0.76; Physical Activity: -0.71; Health-Care Use: -0.64; Sum Scale: -0.78; all p < 0.001). However, when associations with HbA1c were assessed in one multiple linear regression model, only Glucose Management and Dietary Control were significantly associated with lower HbA1c values (Beta = -0.42, p = 0.004 and Beta = -0.30, p = 0.028, respectively), while Physical Activity and Health-Care Use were not (p > 0.05). Adequate fit to the data was achieved for single factor model after successively modelling all significant correlations between the items' error terms, with Chi2 = 106.6, df = 84, p = 0.049; TLI = 0.98, CFI = 0.99 and RMSEA = 0.05 (90% CI 0.01-0.07). Whereas a comparatively lower fit indices to data were observed in case of four factor model. CONCLUSION: The findings support the Urdu version of the DSMQ as a reliable and valid instrument for assessing self-care activities associated with glycaemic control in type 2 diabetes patients. PMID- 29025431 TI - Specific IgE and skin prick tests to diagnose allergy to fresh and baked cow's milk according to age: a systematic review. AB - BACKGROUND: The diagnosis of IgE-mediated cow's milk allergy is often based on anamnesis, and on specific IgE (sIgE) levels and/or Skin Prick Tests (SPT), which have both a good sensitivity but a low specificity, often causing positive results in non-allergic subjects. Thus, oral food challenge is still the gold standard test for diagnosis, though being expensive, time-consuming and possibly at risk for severe allergic reactions. AIM: The aim of the present study was to perform a systematic review of the studies that have so far analyzed the positive predictive values for sIgE and SPT in the diagnosis of allergy to fresh and baked cow's milk according to age, and to identify possible cut-offs that may be useful in clinical practice. METHODS: A comprehensive search on Medline via PubMed and Scopus was performed August 2017. Studies were included if they investigated possible sIgE and/or SPT cut-off values for cow's milk allergy diagnosis in pediatric patients. The quality of the studies was evaluated according to QUADAS 2 criteria. RESULTS: The search produced 471 results on Scopus, and 2233 on PubMed. Thirty-one papers were included in the review and grouped according to patients' age, allergen type and cooking degree of the milk used for the oral food challenge. In children < 2 years, CMA diagnosis seems to be highly likely when sIgE to CM extract are >= 5 KUA/L or when SPT with commercial extract are above 6 mm or Prick by Prick (PbP) with fresh cow's milk are above 8 mm. Any cut offs are proposed for single cow's milk proteins and for baked milk allergy in children younger than 2 years. In Children >= 2 years of age it is hard to define practical cut-offs for allergy to fresh and baked cow's milk. Cut-offs identified are heterogeneous. CONCLUSIONS: None of the cut-offs proposed in the literature can be used to definitely confirm cow's milk allergy diagnosis, either to fresh pasteurized or to baked milk. However, in children < 2 years, cut-offs for specific IgE or SPT seem to be more homogeneous and may be proposed. PMID- 29025433 TI - The role of the glycosyl moiety of myricetin derivatives in anti-HIV-1 activity in vitro. AB - BACKGROUND: Plant extracts are sources of valuable compounds with biological activity, especially for the anti-proliferative activity against pathogens or tumor cells. Myricetin is a flavonoid found in several plants that has been described as an inhibitor of Human immunodeficiency virus type 1 (HIV-1) through its action against the HIV reverse transcriptase, but myricetin derivatives have not been fully studied. The aim of this study was to evaluate the anti-HIV-1 activity of glycosylated metabolites obtained from Marcetia taxifolia and derived from myricetin: myricetin rhamnoside and myricetin 3-(6-rhamnosylgalactoside). METHODS: Compounds were obtained from organic extracts by maceration of aerial parts of M. taxifolia. All biological assays were performed in the MT4 cell line. Antiviral activity was measured as inhibition of p24 and reverse transcriptase with a fluorescent assay. RESULTS: Both flavonoids have antiviral activity in vitro, with an EC50 of 120 uM for myricetin 3-rhamnoside (MR) and 45 uM for myricetin 3-(6-rhamnosylgalactoside) (MRG), both significantly lower than the EC50 of myricetin (230 uM). Although both compounds inhibited the reverse transcriptase activity, with an IC50 of 10.6 uM for MR and 13.8 uM for MRG, myricetin was the most potent, with an IC50 of 7.6 uM, and an inhibition greater than 80%. Molecular docking approach showed correlation between the free energy of binding with the assays of enzyme inhibition. CONCLUSIONS: The results suggest that glycosylated moiety might enhance the anti-HIV-1 activity of myricetin, probably by favoring the internalization of the flavonoid into the cell. The inhibition of the HIV-1 reverse transcriptase is likely responsible for the antiviral activity. PMID- 29025434 TI - Minimum dietary diversity and associated factors among children aged 6-23 months in Addis Ababa, Ethiopia. AB - BACKGROUND: Dietary diversity has long been recognized as a key element of high quality diets. Minimum Dietary Diversity (MDD) is the consumption of four or more food groups from the seven food groups. Globally, only few children are receiving nutritionally adequate and diversified foods. More than two-thirds of malnutrition related child deaths are associated with inappropriate feeding practice during the first two years of life. In Ethiopia, only 7 % of children age 6-23 months had received the minimum acceptable diet. Therefore, the main aim of this study was to determine the level of minimum dietary diversity practice and identify the associated factors among children aged 6-23 months in Addis Ababa, Ethiopia. METHODS: A health facility based cross sectional study was undertaken in the three sub-cities of Addis Ababa from 26th February to 28th April, 2016. A multi-stage sampling technique was used to sample the 352 study participants or mothers who had children aged 6-23 months. Data were collected by using a structured and pretested questionnaire, cleaned and entered into Epi info 7 and analyzed using SPSS 24 software. Logistic regression was fitted and odds ratio with 95% confidence interval (CI) with p-value less than 0.05 was used to identify factors associated with minimum dietary diversity. RESULT: In this study, the overall children with minimum dietary diversity score were found to be 59.9%. Mother's educational attainment and a higher household monthly income were positively associated with the minimum dietary diversity practice. Similarly, mothers' knowledge on dietary diversity and child feeding was positively associated with minimum dietary diversity child feeding practice, with an adjusted odds ratio of 1.98 (95% CI: 1.11-3.53). CONCLUSION: In this study, the consumption of minimum dietary diversity was found to be high. In spite of this, more efforts need to be done to achieve the recommended minimum dietary diversity intake for all children aged between 6 and 23 months. PMID- 29025437 TI - Pieter van Musschenbroek on laws of nature. AB - In this article, we discuss the development of the concept of a 'law' (of nature) in the work of the Dutch natural philosopher and experimenter Petrus van Musschenbroek (1692-1761). Since Van Musschenbroek is commonly described as one of the first 'Newtonians' on the Continent in the secondary literature, we focus more specifically on its relation to Newton's views on this issue. Although he was certainly indebted to Newton for his thinking on laws (of nature), Van Musschenbroek's views can be seen to diverge from Newton's on crucial points. We show, moreover, how his thinking on laws of nature was shaped by both international and local factors. We start with a brief discussion of Newton's concept of 'laws of nature' in order to set the stage for Van Musschenbroek's. We then document the development of Van Musschenbroek's views on laws of nature in chronological order. We demonstrate how his thinking on laws of nature was tied to institutional, theological and scientific factors. We conclude by pointing to the broader significance of this case study for our understanding of the development of the concept 'law of nature' during the eighteenth century. PMID- 29025436 TI - Self-monitoring by Environmental Services May Not Accurately Measure Thoroughness of Hospital Room Cleaning. PMID- 29025438 TI - Pre-gestational excessive weight and duration of breast-feeding. AB - OBJECTIVE: To investigate whether pre-gestational obesity interferes with the duration of breast-feeding. DESIGN: A cross-sectional study was carried out with a population-based probabilistic sample. The dependent variables were exclusive breast-feeding (EBF) and breast-feeding (BF), as defined by the WHO. The classification of pre-gestational nutritional status was based on the pre gestational BMI category. SUBJECTS: A sample of 418 mother-infant pairs from the state of Alagoas, Brazil. RESULTS: The median duration of EBF was 1.9 months (60d), while that of BF was 8.2 months (250d). According to multiple linear regression analysis, the factors that negatively and independently affected the duration of EBF were pre-gestational BMI>=30.0 kg/m2 (-51.9d, 95 % CI -80.4, 23.4), maternal schooling<=9 years (-30.8d, 95 % CI -54.7, -6.9), no prior lactation experience (-29.0d, 95 % CI -45.6, -11.5) and infant pacifier use ( 41.4d; 95 % CI 54.5, -28.2). For BF, a higher weaning rate was observed during the first days after birth among children of pre-gestational obese mothers. CONCLUSIONS: The results suggest that higher pre-gestational BMI is associated with shorter duration of EBF and BF. Prenatal care provides a privileged opportunity to promote nutritional education, better nutritional status of pregnant woman, and greater success with EBF up to 6 months of age and with longer BF. PMID- 29025435 TI - Withania somnifera as a potential candidate to ameliorate high fat diet-induced anxiety and neuroinflammation. AB - BACKGROUND: The epidemic of obesity has reached alarming levels in both developing and developed nations. Excessive calorie intake and sedentary lifestyle due to technological advancements are the main causal factors for overweight and obesity among the human population. Obesity has been associated with a number of co-morbidities such as hypertension, type 2 diabetes mellitus, cardiovascular diseases, and neurodegeneration and dementia. The progression of neurological disorders in obese subjects has been mainly attributed to neuroinflammation. Withania somnifera has been used in numerous Ayurvedic formulations owing to its wide array of health-promoting properties. The current study was designed to test the hypothesis whether dry leaf powder of W. somnifera has anxiolytic and anti-neuroinflammatory potential in diet-induced obesity. METHODS: Young adult female rats were divided into four groups: low fat diet group (LFD) fed with regular chow feed, high fat diet group (HFD) fed with diet containing 30% fat by weight, low fat diet plus extract group (LFDE) fed with regular chow feed supplemented with dry leaf powder of W. somnifera 1 mg/g of body weight (ASH), and high fat diet plus extract group (HFDE) fed with diet containing 30% fat by weight and supplemented with ASH. All the animals were kept on respective feeding regimen for 12 weeks; following which, the animals were tested for their anxiety-like behavior using elevated plus maze test. The animals were sacrificed and used to study various inflammatory markers such as GFAP, Iba1, PPARgamma, iNOS, MCP-1, TNFalpha, IL-1beta, IL-6, and various markers of NF kappaB pathway by Western blotting and quantitative real-time PCR. Serum levels of leptin, insulin and pro-inflammatory cytokines were also assayed. RESULTS: ASH treated rats showed less anxiety levels as compared to HFD animals. At molecular level, ASH ameliorated the HFD-induced reactive gliosis and microgliosis and suppressed the expression of inflammatory markers such as PPARgamma, iNOS, MCP-1, TNFalpha, IL-1beta, and IL-6. Further, ASH ameliorated leptin and insulin resistance and prevented HFD-induced apoptosis. CONCLUSIONS: Dry leaf powder of W. somnifera may prove to be a potential therapeutic agent to attenuate neuroinflammation associated with obesity and may prevent its co-morbidities. PMID- 29025439 TI - End-of-life care and organ donation in South Africa - it's time for national policy to lead the way. PMID- 29025440 TI - Standardised training is the key to accuracy in triage. PMID- 29025441 TI - Need for advocacy for maternal immunisation. PMID- 29025426 TI - The complete European guidelines on phenylketonuria: diagnosis and treatment. AB - Phenylketonuria (PKU) is an autosomal recessive inborn error of phenylalanine metabolism caused by deficiency in the enzyme phenylalanine hydroxylase that converts phenylalanine into tyrosine. If left untreated, PKU results in increased phenylalanine concentrations in blood and brain, which cause severe intellectual disability, epilepsy and behavioural problems. PKU management differs widely across Europe and therefore these guidelines have been developed aiming to optimize and standardize PKU care. Professionals from 10 different European countries developed the guidelines according to the AGREE (Appraisal of Guidelines for Research and Evaluation) method. Literature search, critical appraisal and evidence grading were conducted according to the SIGN (Scottish Intercollegiate Guidelines Network) method. The Delphi-method was used when there was no or little evidence available. External consultants reviewed the guidelines. Using these methods 70 statements were formulated based on the highest quality evidence available. The level of evidence of most recommendations is C or D. Although study designs and patient numbers are sub-optimal, many statements are convincing, important and relevant. In addition, knowledge gaps are identified which require further research in order to direct better care for the future. PMID- 29025442 TI - The evolution of research participant protections in South Africa. AB - South Africa (SA) has played a leading role in health research internationally. Ethical guidelines for the protection of research participants have been published by the Medical Research Council (MRC) as early as 1979. Ironically, the guidelines gave substantial prominence to the oppressive laws of the time. In its 4th edition of the guidelines, the MRC placed emphasis on SA needs, and incorporated the principles of the Bill of Rights of the SA Constitution 1996 into its guidelines. The most significant milestone in the history of participant protections in SA was the inclusion of research and experimentation in the Bill of Rights of the Constitution and the statutory legislation of protections in the National Health Act No. 61 of 2003. PMID- 29025443 TI - Perceptions of nurses' roles in end-of-life care and organ donation - imposition or obligation? AB - South Africa has a rich organ-transplant history, and studies suggest that the SA public supports organ donation. In spite of this, persistently low donor numbers are a significant challenge. This may be due to a lack of contextually appropriate awareness and education, or to barriers to referring patients and families in clinical settings. It may also be due to ad hoc regulations that are not uniformly endorsed or implemented. In this article we present the findings of a study in Johannesburg that explored the attitudes and roles of nurses in end-of life care and organ donation. A total of 273 nurses participated. Most were female and <50 years old. The majority expressed positive attitudes towards both end-of-life care and organ donation, but there was ambiguity as to whether referring patients and families for these services was within nursing scope of practice. The vast majority of participants noted that they would refer patients themselves if there was a mandatory, nationally endorsed referral policy. These findings have implications for clinical practice and policy, and suggest that the formulation and implementation of robust national guidelines should be a priority. Because nurses would follow such guidelines, this might lead to an increase in donor rates and circumvent some uncertainty regarding referral. PMID- 29025444 TI - First report of clinical presentation of a bite by a running spider, Philodromus sp. (Araneae: Philodromidae), with recommendations for spider bite management. AB - This article describes the clinical progression of symptoms over a period of 5 days of a bite inflicted by a Philodromus sp. spider. Commonly known as 'running spiders', these are not considered to be harmful to humans. This report, however, is the first description of an actual bite by a member of this group of spiders showing cytotoxic envenomation. Management of the bites should be as recommended for other cytotoxic spider bites. PMID- 29025445 TI - Blistering rash in a young male child. AB - A 3-year-old child was brought to the casualty department at Leratong Hospital, Johannesburg, South Africa, with severe bullous eruptions on the distal portions of both the upper and lower limbs. He had visited three different general practitioners prior to presentation and had been given several drugs and ointments, including three different classes of antibiotics. During his admission, the diagnosis of linear IgA bullous dermatitis was made. Dapsone and prednisone were given and he recovered well. PMID- 29025446 TI - Inefficient procurement processes undermine access to medicines in the Western Cape Province of South Africa. AB - BACKGROUND: South Africa (SA) has experienced several stock-outs of life-saving medicines for the treatment of major chronic infectious and non-communicable diseases in the public sector. OBJECTIVE: To identify the causes of stock-outs and to illustrate how they undermine access to medicines (ATM) in the Western Cape Province, SA. METHODS: This qualitative study was conducted with a sample of over 70 key informants (frontline health workers, sub-structure and provincial health service managers). We employed the critical incident technique to identify significant occurrences in our context, the consequences of which impacted on access to medicines during a defined period. Stock-outs were identified as one such incident, and we explored when, where and why they occurred, in order to inform policy and practice. RESULTS: Medicines procurement is a centralised function in SA. Health service managers unanimously agreed that stock-outs resulted from the following inefficiencies at the central level: (i) delays in awarding of pharmaceutical tenders; (ii) absence of contracts for certain medicines appearing on provincial code lists; and (iii) suppliers' inability to satisfy contractual agreements. The recurrence of stock-outs had implications at multiple levels: (i) health facility operations; (ii) the Chronic Dispensing Unit (CDU), which prepacks medicines for over 300 000 public sector patients; and (iii) community-based medicines distribution systems, which deliver the CDU's prepacked medicines to non-health facilities nearer to patient homes. For instance, stock-outs resulted in omission of certain medicines from CDU parcels that were delivered to health facilities. This increased workload and caused frustration for frontline health workers who were expected to dispense omitted medicines manually. According to frontline health workers, this translated into longer waiting times for patients and associated dissatisfaction. In some instances, patients were asked to return for undispensed medication at a later date, which could potentially affect adherence to treatment and therapeutic outcomes. Stock-outs therefore undermined the intended benefits of ATM strategies. CONCLUSION: Addressing the procurement challenges, most notably timeous tender awards and supplier performance management, is critical for successful implementation of ATM strategies. PMID- 29025447 TI - Enough is not enough: Medical students' knowledge of early warning signs of childhood cancer. AB - BACKGROUND: The reported incidence of childhood cancer in upper-middle-income South Africa (SA) is much lower than in high-income countries, partly due to under-diagnosis and under-reporting. Documented survival rates are disturbingly low, prompting an analysis of potential factors that may be responsible. OBJECTIVES: To determine final-year medical students' level of knowledge of early warning signs of childhood cancer and whether a correlation existed between test scores and participants' age, gender and previous exposure to a person with cancer. METHODS: A two-part questionnaire based on the Saint Siluan mnemonic, testing both recall and recognition of early warning signs of childhood cancer, was administered. The Mann-Whitney-Wilcoxon test was used to assess differences in continuous and count variables between demographic data, experience and responses, and Fisher's exact test and Spearman's rank correlation coefficient were used to determine correlations between demographic data, previous contact with persons with cancer and test scores. A novel equality ratio was calculated to compare the recall and recognition sections and allowed analysis of recall v. recognition. RESULTS: The 84 participants recalled a median of six signs each (interquartile range 4 - 7) and correctly recognised a median of 70% in the recognition section, considered a pass mark. There was no correlation between participants' age, gender, previous contact with a person with cancer and recognition scores. Students with previous exposure to a person with cancer had higher scores in the recall section, but this did not achieve statistical significance. Students were able to recognise more signs of haematological malignancies than central nervous system (CNS) malignancies. CONCLUSION: The study demonstrated a marked inconsistency between recall and recognition of signs of childhood cancer, with signs of CNS malignancies being least recognised. However, the majority of students could recognise enough early warning signs to meet the university pass standard. Although this study demonstrated acceptable recognition of early warning signs of childhood cancer at one university, we suggest that long-term recall in medical practitioners is poor, as reflected in the low age-standardised ratios of childhood cancer in SA. We recommend increased ongoing exposure to paediatric oncology in medical school and improved awareness programmes to increase early referrals. PMID- 29025448 TI - National South African HIV prevalence estimates robust despite substantial test non-participation. AB - BACKGROUND: South African (SA) national HIV seroprevalence estimates are of crucial policy relevance in the country, and for the worldwide HIV response. However, the most recent nationally representative HIV test survey in 2012 had 22% test non-participation, leaving the potential for substantial bias in current seroprevalence estimates, even after controlling for selection on observed factors. OBJECTIVE: To re-estimate national HIV prevalence in SA, controlling for bias due to selection on both observed and unobserved factors in the 2012 SA National HIV Prevalence, Incidence and Behaviour Survey. METHODS: We jointly estimated regression models for consent to test and HIV status in a Heckman-type bivariate probit framework. As selection variable, we used assigned interviewer identity, a variable known to predict consent but highly unlikely to be associated with interviewees' HIV status. From these models, we estimated the HIV status of interviewed participants who did not test. RESULTS: Of 26 710 interviewed participants who were invited to test for HIV, 21.3% of females and 24.3% of males declined. Interviewer identity was strongly correlated with consent to test for HIV; declining a test was weakly associated with HIV serostatus. Our HIV prevalence estimates were not significantly different from those using standard methods to control for bias due to selection on observed factors: 15.1% (95% confidence interval (CI) 12.1 - 18.6) v. 14.5% (95% CI 12.8 - 16.3) for 15 - 49-year-old males; 23.3% (95% CI 21.7 - 25.8) v. 23.2% (95% CI 21.3 - 25.1) for 15 - 49-year-old females. CONCLUSION: The most recent SA HIV prevalence estimates are robust under the strongest available test for selection bias due to missing data. Our findings support the reliability of inferences drawn from such data. PMID- 29025449 TI - Incidence of chemotherapy-induced neutropenia in HIV-infected and uninfected patients with breast cancer receiving neoadjuvant chemotherapy. AB - BACKGROUND: Chemotherapy-induced neutropenia (CIN) can result in poor tolerance of chemotherapy, leading to dose reductions, delays in therapy schedules, morbidity and mortality. Actively identifying predisposing risk factors before treatment is of paramount importance. We hypothesised that chemotherapy is associated with a greater increase in CIN and its complications in HIV-infected patients than in those who are not infected. OBJECTIVE: To establish the incidence of CIN in HIV-infected and uninfected patients undergoing chemotherapy. METHODS: A retrospective chart review and analysis was conducted in the oncology departments at Inkosi Albert Luthuli Central Hospital and Addington Hospital, Durban, South Africa. The study population consisted of 65 previously untreated women of all ages with stage II - IV breast cancer and known HIV status treated with neoadjuvant chemotherapy from January 2012 to December 2015. RESULTS: HIV infected patients formed 32.3% of the group, and 95.2% of them were on antiretroviral therapy. The mean age (standard deviation (SD)) of the cohort was 48.5 (13.2) years (40.6 (9.6) years for the HIV-infected group v. 52.0 (13.1) years for the uninfected group; p<0.001). Ninety-five neutropenia episodes were observed (rate 0.85 per 1 year of follow-up time). Following multivariate adjustment, patients with HIV infection were almost two times more likely to develop CIN (hazard ratio (HR) 1.76, 95% confidence interval (CI) 1.06 - 2.92; p=0.029. A high baseline absolute neutrophil count (ANC) (HR 0.80, 95% CI 0.68 - 0.95; p=0.005) remained significantly associated with protection against CIN. CONCLUSIONS: HIV-infected patients were younger than those who were not infected, and presented at a more locally advanced stage of disease. HIV infection was an independent predictor for CIN. HIV-infected patients had an almost two-fold increased risk of developing CIN and developed neutropenia at a much faster rate. A high baseline white cell count and ANC were protective against CIN. PMID- 29025450 TI - An increase in rates of obstetric haemorrhage in a setting of high HIV seroprevalence. AB - BACKGROUND: Obstetric haemorrhage (OH) is the leading cause of maternal mortality worldwide, although, indirectly, HIV is also a leading cause of maternal mortality in some settings with a high HIV seroprevalence. OBJECTIVE: To determine the possible association between increasing rates of OH and HIV or its treatment. METHODS: We conducted a retrospective chart review of women with OH at King Edward VIII Hospital, Durban, South Africa, over a 3-year period (2009 - 2011), during which the drug regimen for the prevention of mother-to-child transmission was evolving from single-dose nevirapine to antenatal zidovudine combined with intrapartum nevirapine (also referred to as dual therapy), and finally to a combination or highly active antiretroviral therapy (cART or HAART). Cases of OH (including abruptio placentae, placenta praevia, unspecified antepartum haemorrhage (APH), and postpartum haemorrhage (PPH)) were identified from maternity delivery records, and the relevant data extracted. RESULTS: We analysed the records of 448 women diagnosed with OH. Even though the incidence of OH was low, the study found an increasing number of cases during the 3-year period. PPH - not APH - was associated with HIV seropositivity (odds ratio 1.84, 95% confi-dence interval 1.14 - 2.95). cART was not associated with an increased risk of haemorrhage. CONCLUSION: HIV was associated with a high risk of PPH, and its possible association with HIV treatment needs further research. PMID- 29025451 TI - Mid-upper arm circumference: A surrogate for body mass index in pregnant women. AB - BACKGROUND: Nutrition in pregnancy has implications for both mother and fetus, hence the importance of an accurate assessment at the booking visit during antenatal care. The body mass index (BMI, kg/m2) is currently the gold standard for measuring body fatness. However, pregnancy-associated weight gain and oedema, as well as late booking in our population setting, cause concern about the reliability of using the BMI to assess body fat or nutritional status in pregnancy. The mid-upper arm circumference (MUAC) has been used for many decades to assess malnutrition in children aged <5 years. Several studies have also shown a strong correlation between MUAC and BMI in both pregnant and non-pregnant adult populations. OBJECTIVE: To assess the correlation between the MUAC and BMI in pregnant women booking for antenatal care in the Metro West area of Cape Town, South Africa. METHODS: We conducted a cross-sectional study of women booking at four midwife obstetric units. Anthropometric measurements (height, weight and MUAC) were carried out on pregnant women at their first antenatal booking visit. RESULTS: The results showed a strong correlation between MUAC and BMI in pregnant women up to 30 weeks' gestation. The correlation was calculated at 0.92 for the entire group. The MUAC cut-offs for obesity (BMI >30) and malnutrition (BMI <18.5) were calculated as 30.57 cm and 22.8 cm, respectively. CONCLUSION: MUAC correlates strongly with BMI in pregnancy up to a gestation of 30 weeks in women attending Metro West maternity services. In low-resource settings, the simpler MUAC measurement could reliably be substituted for BMI to assess nutritional status. PMID- 29025452 TI - Management of failed spinal anaesthesia for caesarean section. AB - BACKGROUND: Failed spinal anaesthesia for caesarean section (CS) may be partial or complete and the subsequent discomfort is the most commonly cited cause of litigation in obstetric anaesthesia. OBJECTIVES: To determine if there is a standardised approach to: (i) testing the level of block of spinal anaesthesia; and (ii) the management of failed spinal anaesthesia for CS. METHODS: A structured questionnaire to ascertain the current practice of testing the level of block and management of three different scenarios of failed spinal anaesthesia was distributed to 51 government hospitals in KwaZulu-Natal, South Africa (SA). All obstetric anaes-thetic service providers, ranging from interns to specialist anaesthetists, were invited to complete the questionnaire. RESULTS: A total of 375 responses were received from 42 of the 51 hospitals surveyed. Specialist anaesthetists managed failure of spinal anaesthesia significantly differently than other anaesthetic service providers. Specialists were more likely to convert to a general anaesthetic (GA), while others were more likely to repeat spinal anaesthesia or administer intravenous ketamine, midazolam and opioids. Only 212 respondents (56%) tested the level of block and there was no difference between the groups with regard to the method of assessment of height (p=0.15). Non specialists, however, accepted a significantly lower level of block, using pinprick, than specialists (p=0.027), which could lead to a higher failure rate. More than one-third of non-specialists did not consider themselves competent to perform a GA and >90% of respondents agreed that a 'failed' spinal algorithm would be useful. CONCLUSION: There is a need for standardised assessment of the adequacy of spinal anaesthesia for CS in SA, as well as a failed spinal algorithm. PMID- 29025453 TI - Interprofessional communication in organ transplantation in Gauteng Province, South Africa. AB - BACKGROUND: Communication is essential to the transplant process, but it is challenging in South Africa (SA) because of the complexity of the country and the health system, the nature of transplantation as a technical procedure with inherent psychological considerations, and the large number of professionals involved. Transplant communication has not been explored in SA, and this study was the first to use health communication methods to generate empirical evidence relating to it. OBJECTIVE: To explore communication in transplant settings in Gauteng Province, SA. METHODS: Qualitative methods were used to collect data across six hospitals and transplant centres in Gauteng. State and private institutions were equally represented. Health professionals and transplant co ordinators participated. Thematic analysis of data was undertaken. RESULTS: Facilitators of interprofessional transplant communication included appreciation of its importance to good practice and cohesive individual transplant teams. Barriers to interprofessional communication were observed when individual teams had to come together in a multi-team, interdisciplinary environment, when interchange became aggressive, and when information was not passed on to other health professionals timeously. These barriers had implications for continuity of care and ethics, which could lead to moral distress. CONCLUSION: Transplantation in Gauteng is characterised by aspects of good teamwork, and the importance of effective communication is acknowledged. Transplantation also faces some challenges in terms of interprofessional communication. Recommendations for mitigating some of the gaps include integrating a health communication specialist into the transplant process, 'knotworking', the use of apology, and an advance warning text-message system for transplant professionals. PMID- 29025454 TI - An audit of traumatic brain injury (TBI) in a busy developing-world trauma service exposes a significant deficit in resources available to manage severe TBI. AB - BACKGROUND: Traumatic brain injury (TBI) affects large numbers of patients, both adults and children, and significant resources are needed to manage it. OBJECTIVE: To determine the burden of TBI and the adequacy of available resources to manage in the Pietermaritzburg Metropolitan Trauma Service (PMTS). METHODS: All patients with a TBI were identified from the hybrid electronic medical registry at Grey's and Edendale hospitals in Pietermaritzburg (PMB), KwaZulu Natal, South Africa. Patients were classified according to severity of head injury and age. We defined mild TBI as Glasgow coma scale (GCS) 13 - 15, moderate as GCS 9 - 12, and severe as GCS <=8, in accordance with international standards. We divided the cohort according to ages 0 - 5 years, 6 - 10 years, >10 - 17 years and adults (>17 years). RESULTS: From January 2012 to December 2014, 3 301 patients were treated for TBI in PMB. The mean age was 27.4 (standard deviation 14.4) years. There were 2 632 males and 564 females. There were 2 540 mild, 326 moderate, and 329 severe TBI admissions during the period under review. A total of 139 (4.2%) patients died. A total of 242 (7.3%) patients were admitted to the intensive care unit (ICU), of whom 137 (57.0%) had a GCS of <=9. Only 27.0% of patients with a GCS of <=9 were admitted to the ICU. CONCLUSION: There is a significant burden of TBI managed by the PMTS. Critical care resources available to manage patients with TBI are inadequate. PMID- 29025455 TI - The burden of gunshot injuries on orthopaedic healthcare resources in South Africa. AB - BACKGROUND: Injuries inflicted by gunshot wounds (GSWs) are an immense burden on the South African (SA) healthcare system. In 2005, Allard and Burch estimated SA state hospitals treated approximately 127 000 firearm victims annually and concluded that the cost of treating an abdominal GSW was approximately USD1 467 per patient. While the annual number of GSW injuries has decreased over the past decade, an estimated 54 870 firearm-related injuries occurred in SA in 2012. No study has estimated the burden of these GSWs from an orthopaedic perspective. OBJECTIVE: To estimate the burden and average cost of treating GSW victims requiring orthopaedic interventions in an SA tertiary level hospital. METHODS: This retrospective study surveyed more than 1 500 orthopaedic admissions over a 12-month period (2012) at Groote Schuur Hospital, Cape Town, SA. Chart review subsequently yielded data that allowed analysis of cost, theatre time, number and type of implants, duration of admission, diagnostic imaging studies performed, blood products used, laboratory studies ordered and medications administered. RESULTS: A total of 111 patients with an average age of 28 years (range 13 - 74) were identified. Each patient was hit by an average of 1.69 bullets (range 1 - 7). These patients sustained a total of 147 fractures, the majority in the lower extremities. Ninety-five patients received surgical treatment for a total of 135 procedures, with a cumulative surgical theatre time of >306 hours. Theatre costs, excluding implants, were in excess of USD94 490. Eighty of the patients received a total of 99 implants during surgery, which raised theatre costs an additional USD53 381 cumulatively, or USD667 per patient. Patients remained hospitalised for an average of 9.75 days, and total ward costs exceeded USD130 400. Individual patient costs averaged about USD2 940 (ZAR24 945) per patient. CONCLUSION: This study assessed the burden of orthopaedic firearm injuries in SA. It was estimated that on average, treating an orthopaedic GSW patient cost USD2 940, used just over 3 hours of theatre time per operation, and necessitated a hospital bed for an average period of 9.75 days. Improved understanding of the high incidence of orthopaedic GSWs treated in an SA tertiary care trauma centre and the costs incurred will help the state healthcare system better prioritise orthopaedic trauma funding and training opportunities, while also supporting cost-saving measures, including redirection of financial resources to primary prevention initiatives. PMID- 29025456 TI - A finger or not? Prostate examinations by non-urologists at a South African academic institution. AB - BACKGROUND: According to the South African (SA) National Cancer Registry 2009, prostate cancer is the most commonly diagnosed solid-organ cancer in SA men: the incidence increases at ~3% every year, with 1/26 men developing prostate cancer in their lifetime and five men dying every day. Screening for prostate cancer by performing a digital rectal examination (DRE) adds to the sensitivity and specificity of serum prostate-specific antigen (PSA) testing and is an important component of the assessment for the early detection of prostate cancer. OBJECTIVES: To ascertain whether doctors who are not in the field of urology perform DREs and PSA testing to screen for prostate cancer, where indicated, and to determine the reason, if any, why doctors do not perform prostate examinations. METHODS: Doctors (including specialists and primary care practitioners) who consulted adult male patients in the emergency departments and polyclinics of three academic hospitals were included in the sample and asked to complete an anonymous questionnaire. Doctors with specialist urological training were excluded from the sample. The questionnaire included the following aspects: gender, year of graduation and university, current position, knowledge of PSA screening and DRE, whether these were being performed, and reasons for non performance. RESULTS: The response rate was 303/350 participants. Fifty-nine percent of the respondents were female. The median duration of experience was 5 years. The mean (standard deviation) knowledge score with regard to screening was 56.1% (20). The PSA test alone was most frequently done (35%), followed by asking the patient about urinary tract symptoms (28%). In contrast, DRE of the prostate, alone or combined with a PSA test, was performed less frequently (13.2% and 10.6%, respectively). Some of the most common reasons for not performing a DRE included: 'It's more convenient to do a PSA test'; 'Urologists will examine the prostate anyway'; 'No privacy in the emergency department/admission ward'; 'Prostate exam is not relevant to my practice'; 'There is not enough time'; and 'The practitioner forgets'. Doctors with >7 years of working experience are the least likely to do a DRE. CONCLUSION: Performance rates of DRE and PSA testing by doctors who are not urologists are very low, which may have significant clinical implications. It is recommended that SA prostate cancer screening guidelines are necessary to change practice with regard to this condition. PMID- 29025458 TI - Editorial. PMID- 29025457 TI - Characteristics and correlates of alcohol consumption among adult chronic care patients in North West Province, South Africa. AB - BACKGROUND: Alcohol consumption patterns in South Africa (SA) tend to be characterised by risky patterns of drinking. Taken together with the large burden of disease associated with HIV and tuberculosis (TB), heavy alcohol consumption patterns with these chronic conditions has the potential to compromise the efficacy of treatment efforts among such patients. OBJECTIVE: To explore the characteristics, correlates and diagnoses of alcohol use disorders among chronic care patients in SA. METHOD: A cross-sectional survey was conducted in three public health clinic facilities in the North West Province of SA. A total of 1 322 patients were recruited from non-emergency waiting areas. RESULTS: Proportions of patients with abstinence, hazardous, harmful and dependent consumption were determined using logistic regression. Of the patients screened, nearly half (45%) drank alcohol and, of these, 10% were classified as hazardous drinkers, 1.7% as harmful drinkers, and 1.6% as dependent drinkers (overall 3% alcohol use disorder). Abstinence proportions were 60% and 38% among women and men, respectively. Alcohol Use Disorders Identification Test scores for men were 63% higher than for women. The lowest patient abstinence proportion (47%) and highest dependent drinking (10%) was for TB. The highest abstinence proportion was for diabetes (65%), and the highest hazardous and harmful drinking was among TB (14%) and HIV (7%) patients. CONCLUSIONS: The high levels of risky drinking among chronic care patients, particularly among patients receiving treatment for HIV and TB, are concerning. Instituting appropriate screening measures and referral to treatment would be an important first step in mitigating the effects of risky alcohol use among chronic care patients. PMID- 29025460 TI - Allergies in Asia-Pacific survey. PMID- 29025459 TI - Nasal allergies in the Middle Eastern population: Results from the "Allergies in Middle East Survey". AB - BACKGROUND: Chronic respiratory diseases such as asthma and allergic rhinitis (AR) are a major public health problem in developing countries including those in the Middle East. However, to date, there is a paucity of information related to physician-diagnosed AR in this region. The Allergies in Middle East Survey was undertaken to help clarify and broaden the understanding of physician-diagnosed AR across Egypt, Iran, Lebanon, Saudi Arabia, and the United Arab Emirates. The survey explores the frequency of physician-diagnosed AR, prevalence and types of associated symptoms, the impact on quality of life (QOL), current treatment practices, and therapy expectations. METHODS: In total, 7411 households in five countries (Egypt, Lebanon, Saudi Arabia, Iran and the United Arab Emirates) were screened to identify individuals that were >=4 years old with a physician diagnosis of AR and either symptoms and/or treatment in the past 12 months. A total of 501 respondents from the five countries completed the survey. Standardized questionnaires were used to make comparisons across the regions; however, the data collection procedures were tailored for each country. The sample was probability based to ensure valid statistical inference to the population. RESULTS: Ten percent of the Middle East population surveyed had a physician diagnosis of AR, with 65% of respondents stating that their allergies were intermittent in nature. An otolaryngologist or allergist diagnosed the majority of the individuals surveyed. Runny nose, nasal and throat itching, postnasal drip, and nasal congestion or stuffed up nose were the most common and bothersome symptoms of AR. The majority of survey participants (58% of the overall survey population) with AR reported that the condition had an impact on their daily private and professional life. Seventy-two percent of adults reported that their AR symptoms limited their work/school activities and 35% reported that their AR interfered with and caused them to miss work or school within the past 12 months. One factor, in addition to the outward AR symptoms, that could have contributed to these function impairments may have been sleep disturbances. Although a secondary symptom to AR, sleep disturbances (difficulty getting to sleep, waking up during the night or lack of a good night's sleep) were shown in this survey to be extremely troubling in ~15% of AR sufferers. In the past year >90% of patients reported taking a medication of any type for their AR, with nearly a 4:1 ratio of patients taking a prescription medication versus an over the-counter (OTC) medication in the past 4 weeks. Over 75% of survey respondents reported taking an intranasal corticosteroid (INCS) in the last 4 weeks and the satisfaction rate of INCS medications was similar to that reported for OTC medications. The most common reasons cited for dissatisfaction with INCS medications were inadequate effectiveness, bothersome side effects (e.g., unpleasant taste and retrograde drainage into the pharynx), decreased effectiveness with chronic use, and failure to provide 24-hour relief. CONCLUSION: These data show that AR is common in the Middle East region as elsewhere in the world. Many patients with AR in Middle East region suffer from their symptoms (e.g., runny nose, nasal itching, nasal congestion, postnasal drip, and other symptoms) on all or most days during the times of the year that their allergies are worst. These symptoms have been shown to reduce QOL and performance at work/school to a significant degree. Additionally, the survey data underscore a considerable treatment gap with current therapies for AR and that many AR patients still have not found adequate effectiveness with currently available medications. Thus, through identification of disease impact on the Middle East population and highlighting treatment gaps, clinicians in the Middle East may better understand and treat AR, leading to improvements in overall patient satisfaction and QOL. PMID- 29025461 TI - Nasal allergies in the Asian-Pacific population: Results from the Allergies in Asia-Pacific Survey. AB - BACKGROUND: The Allergies in Asia-Pacific Survey describes the symptoms, impact, and treatment of allergic rhinitis (AR) across Australia, China, Hong Kong, Malaysia, Singapore, Taiwan, Vietnam, and the Philippines. The Allergies in Asia Pacific Survey was undertaken to further clarify the prevalence of physician diagnosed nasal allergies (NAs), impact on quality-of-life (QOL), existing treatment paradigms and gaps, and NA medications currently used in treatment. METHODS: Thirty-three thousand three hundred seventy-eight households were screened for individuals, >=4 years old, with a physician diagnosis of AR or NA and either symptoms or treatment in the past 12 months. Standardized questionnaires were used to make comparisons across regions. A total of 1043 adults and 192 children were included in the survey. RESULTS: Nine percent of participants were diagnosed with AR with two of three responding that their NAs were seasonal in nature. Nasal congestion was the most common and bothersome symptom of AR. Most participants reported that AR impacted their QOL with nearly one-half citing impairments in school/work performance/productivity. Sleep disturbances, secondary to AR, were also shown to be appreciable. Two-thirds of patients took medication for their AR. Less than one-quarter of survey respondents reported taking an intranasal corticosteroid and the satisfaction rate was similar to that of over-the-counter medications. The most common reasons cited for dissatisfaction were related to inadequate efficacy and bothersome side effects. CONCLUSION: AR appears to be extremely common across Asia-Pacific nations. Many individuals with AR suffer from symptoms that reduce QOL and treatment gaps exist with current therapies. Through identification of disease impact and highlighting treatment gaps, clinicians may better understand and treat AR, leading to improvements in overall patient satisfaction and QOL. PMID- 29025462 TI - Mechanism of action of allergen immunotherapy. AB - BACKGROUND: Allergen immunotherapy (AIT) leads to the production of antiallergen immunoglobulin (IgG) or "blocking antibody" in the serum and an increase in antiallergen IgG and IgA in nasal secretions. There is also a decrease in the usual rise in antiallergen IgE that occurs after the pollen season. METHODS: In this paper, mechanisms of action of allergen immunotherapy is reviewed. RESULTS: Regulatory T (Treg) cells and their cytokines, primarily interleukin (IL) 10 and transforming growth factor beta, suppress T-helper type 2 immune responses and control allergic diseases in many ways. AIT induces a shift in the proportion of IL-4-secreting T-helper type 2 cells in favor of IL-10-secreting inducible Treg cells specific for the same allergenic epitope that increases in number and function. Different types of inducible Treg control several facets of allergic inflammation. There are two main types of immunotherapy: subcutaneous immunotherapy and sublingual immunotherapy. Subcutaneous immunotherapy is efficacious and is indicated for the reduction of seasonal symptoms. Sublingual immunotherapy involves the regular self-administration and retention of allergen extract under the tongue for 1-2 minutes before the extract is swallowed. The allergens cross the mucosa in 15-30 minutes and are then captured by tolerogenic dendritic cells and processed as small peptides. Next, via the lymphatic system, a systemic immune response is created to produce an early decrease in mast cell and basophil degranulation. CONCLUSION: AIT is indicated for the treatment of moderate-to-severe intermittent or persistent symptoms of allergic rhinitis. AIT can be administered to those >5 years of age and has been shown to be safe in children as young as 3 years of age. In this article, AIT and other types of immunotherapies were discussed as well as the indications for immunotherapy. PMID- 29025463 TI - Clinical efficacy of immunotherapy in allergic rhinitis. AB - BACKGROUND: Aeroallergen immunotherapy (AIT) should be considered for patients who exhibit symptoms of allergic rhinitis (AR), rhinoconjunctivitis, and/or asthma after natural exposure to allergens and who also demonstrate specific immunoglobulin E antibodies against relevant allergens. METHODS: In this paper, clinical efficacy of immunotherapy in allergic rhinitis is reviewed. RESULT: Subcutaneous allergen immunotherapy (SCIT) is effective for seasonal and perennial AR. Sustained effectiveness requires several years of treatment. SCIT may prevent the development of allergic asthma in children with AR. Sublingual allergen immunotherapy (SLIT) is currently considered an alternative treatment to the subcutaneous route. The use of SLIT has been included in international guidelines for the treatment of AR with or without conjunctivitis. CONCLUSION: Patients treated with SCIT are at risk of both local and systemic adverse reactions; however, in most cases, symptoms are readily reversible if they are recognized early and treated promptly. The safety profile of SLIT is good; therefore, SLIT can be self-administered by patients in their homes. In this article, we reviewed the efficacy and safety of allergen immunotherapy. PMID- 29025464 TI - Alternative products to treat allergic rhinitis and alternative routes for allergy immunotherapy. AB - BACKGROUND: Some alternative products instead of immunotherapy are used in patients with allergic rhinitis (AR). METHODS: In this paper, alternative products to treat allergic rhinitis and alternative routes for allergy immunotherapy are reviewed. RESULTS: Alternative products and methods used instead of immunotherapy are tea therapy, acupuncture, Nigella sativa, cinnamon bark, Spanish needle, acerola, capsaicin (Capsicum annum), allergen-absorbing ointment, and cellulose powder. N. sativa has been used in AR treatment due to its anti-inflammatory effects. N. sativa oil also inhibits the cyclooxygenase and 5-lipoxygenase pathways of arachidonic acid metabolism. The beneficial effects of N. sativa seed supplementation on the symptoms of AR may be due to its antihistaminic properties. To improve the efficacy of immunotherapy, some measures are taken regarding known immunotherapy applications and alternative routes of intralymphatic immunotherapy and epicutaneous immunotherapy are used. CONCLUSION: There are alternative routes and products to improve the efficacy of immunotherapy. PMID- 29025465 TI - The creation and verification of cranial models using three-dimensional rapid prototyping technology in field of transnasal sphenoid endoscopy. AB - BACKGROUND: Surgical navigation systems have been used increasingly in guiding complex ear, nose, and throat surgery. Although these are helpful, they are only beneficial intraoperatively; thus, the novice surgeon will not have the preoperative training or exposure that can be vital in complex procedures. In addition, there is a lack of reliable models to give surgeons hands-on training in performing such procedures. METHODS: A technique using an industrial rapid prototyping process by three-dimensional (3D) printing was developed, from which accurate spatial models of the nasal cavity, paranasal sinuses (sphenoid sinus in particular), and intrasellar/pituitary pathology were produced, according to the parameters of an individual patient. Image-guided surgical (IGS) techniques on two different platforms were used during endoscopic transsphenoidal surgery to test and validate the anatomical accuracy of the sinus models by comparing the models with radiological images of the patient on IGS. RESULTS: It was possible to register, validate, and navigate accurately on these models using commonly available navigation stations, matching accurately the anatomy of the model to the IGS images. CONCLUSION: These 3D models can be reliably used for teaching/training and preoperative planning purposes. PMID- 29025466 TI - Long-term Results of Bilateral Endoscopic Vidian Neurectomy in the Management of Moderate to Severe Persistent Allergic Rhinitis. PMID- 29025467 TI - Nasal eosinophilia and serum soluble intercellular adhesion molecule 1 in patients with allergic rhinitis treated with montelukast alone or in combination with desloratadine or levocetirizine. AB - BACKGROUND: Because intercellular adhesion molecule (ICAM) 1 and recruitment of eosinophils are crucial in supporting allergic inflammation, their down regulation may bring additional benefits in patients' recovery. We have assessed nasal eosinophilia and serum soluble ICAM-1 (sICAM-1) concentrations in relation to nasal symptoms in patients with persistent allergic rhinitis (AR) treated for 6 weeks with either desloratadine, levocetirizine, montelukast alone, or in combination. METHODS: In this single-center, randomized, double-blind, placebo controlled, crossover, two-arm study, 40 patients with persistent AR were randomized to receive either montelukast and/or levocetirizine or placebo (n = 20) or to receive treatment with montelukast and/or desloratadine or placebo (n = 20). Nasal eosinophilia and concentration of sICAM-1 in peripheral blood were assessed before and on the last day of each treatment period. RESULTS: All active treatments in both arms of the study resulted in the decrease of sICAM-1 and nasal eosinophilia, which correlated with the severity of nasal symptoms. In the montelukast/levocetirizine arm, montelukast decreased nasal eosinophilia more significantly than levocetirizine, whereas in reduction of sICAM-1 all active treatment options were equally effective. However, in the desloratadine/montelukast arm, the resulting improvement of combination therapy of sICAM-1 and the influx of eosinophils was not statistically significant. CONCLUSION: The improvement of nasal symptoms in patients with AR treated with antihistamines, with or without montelukast, may additionally result from the reduction of sICAM-1 and nasal eosinophilia. Because the combination therapy may bring inconclusive benefits in this area there is a strong need of further studies to find mechanisms that favor combination therapy. PMID- 29025468 TI - Comparison of Clinical Data, CT, and Bone Histopathology in Unilateral Chronic Maxillary Sinusitis. PMID- 29025469 TI - Abstracts presented at the North American Rhinology & Allergy Conference, January 31-February 3, 2013, Puerto Rico. PMID- 29025470 TI - Uncontrolled asthma: A real-life experience. PMID- 29025471 TI - Enhancing sublingual immunotherapy by systemic or local factors: A role for vitamin D and lingual tonsil? PMID- 29025472 TI - Computed nasal resistance compared with patient-reported symptoms in surgically treated nasal airway passages: A preliminary report. AB - BACKGROUND: Nasal airway obstruction (NAO) is a common health condition impacting mood, energy, recreation, sleep, and overall quality of life. Nasal surgery often addresses NAO but the results are sometimes unsatisfactory. Evaluating surgical treatment efficacy could be improved if objective tests were available that correlated with patient-reported measures of symptoms. The goal of this study was to develop methods for comparing nasal resistance computed by computational fluid dynamics (CFD) models with patient-reported symptoms of NAO using early data from a 4-year prospective study. METHODS: Computed tomography (CT) scans and patient reported scores from the Nasal Obstruction Symptom Evaluation (NOSE) scale and a visual analog scale (VAS) measuring unilateral airflow sensation were obtained pre- and postoperatively in two NAO patients showing no significant mucosal asymmetry who were successfully treated with functional nasal surgery, including septoplasty. Pre- and postsurgery CFD models were created from the CT scans. Numerical simulation of steady-state inspiratory airflow was used to calculate bilateral and unilateral CFD-derived nasal resistance (CFD-NR). RESULTS: In both subjects, NOSE and VAS scores improved after surgery, bilateral CFD-NR decreased, and unilateral CFD-NR decreased on the affected side. In addition, NOSE and VAS scores tracked with unilateral CFD-NR on the affected side. CONCLUSION: These preliminary results suggest a possible correlation between unilateral NR and patient-reported symptoms and imply that analysis of unilateral obstruction should focus on the affected side. A formal investigation of unilateral CFD-NR and patient-reported symptoms in a series of NAO patients is needed to determine if these variables are correlated. PMID- 29025473 TI - Dietary polyphenols affect MUC5AC expression and ciliary movement in respiratory cells and nasal mucosa. PMID- 29025474 TI - Reply. PMID- 29025475 TI - Pseudomeningoceles of the sphenoid sinus masquerading as sinus pathology. PMID- 29025476 TI - Intracranial mucocele formation in the context of longstanding chronic rhinosinusitis: A clinicopathologic series and literature review. AB - Chronic rhinosinusitis (CRS) can lead to serious long-term adverse sequelae, particularly if left untreated. The aim of this study was to describe a series of intracranial mucoceles (ICMs) that arose in the context of longstanding CRS combined with a review of the pertinent literature. A retrospective chart review was performed on all patients who developed ICMs in association with CRS between 2003 and 2012. The clinical presentation, radiographic features, surgical approach, intraoperative findings, and patient outcome were examined in the context of a literature review. Sixty-five cases of mucoceles were identified in patients with a history of CRS, of which seven (10.8%) were intracranial. Five patients were men and two were women with a mean age of 42.1 years. Headache, facial pressure, retro-orbital pain, and visual disturbances were the most common presenting symptoms. Five of the seven had previously undergone sinonasal surgery. Imaging studies showed ICMs involving the anterior cranial fossa, two of which were bilateral. Latency between onset of CRS and ICM detection ranged from 3 to 19 years (mean, 9.4 years). All patients underwent endoscopic transnasal drainage with three also requiring a concurrent, open neurosurgical procedure to access the intracranial component. There were no postoperative complications, and no recurrences were observed after a mean follow-up of 2.7 years. ICMs presenting as delayed complications of CRS are uncommon and constitute a surgical challenge. Open, external skull base approaches used in conjunction with transnasal endoscopic drainage procedures may be necessary to achieve successful management of this rare condition. PMID- 29025477 TI - TB stigma: clearing the fog. PMID- 29025478 TI - Ending TB-related stigma and discrimination. PMID- 29025479 TI - Measuring TB-related stigma. PMID- 29025480 TI - Correlates of observing and willingness to report stigma towards HIV clients by (TB) health workers in Africa. AB - SETTING: Health care facilities in Kenya, Tanzania and Namibia. OBJECTIVE: To study the factors associated with the observation of and willingness to report stigmatising behaviour towards persons living with the human immunodeficiency virus (HIV) among health care workers (HCWs). DESIGN: Mixed-effect logistic regression analyses of 9516 HCW interviews, including those of 4062 (43%) TB workers carried out as part of the Service Provision Assessments (SPAs) between 2006 and 2010. RESULT: Discrimination (i.e., enacted stigma) was observed by respectively 1042 (60%), 384 (40%) and 907 (69%) TB workers in Kenya, Namibia and Tanzania, similar to the trend observed among all HCWs. Observations of discrimination were clustered at facility level in Kenya, and mapping of facility level discrimination suggested geographic clustering. HCWs were more likely to observe discrimination in facilities without regular supportive supervision (adjusted OR [aOR] 2.33, 95%CI 1.09-4.96). No HCW characteristics were found to predict intention to report. Training in patients' rights and in confidentiality predisposed HCWs to recognise discrimination (aOR 2.51, 95%CI 1.19-5.28) and the willingness to report it (aOR 2.23, 95%CI 1.11-4.47). Exposure to training in TB infection control (IC) was associated with greater willingness to report discrimination (aOR 2.13, 95%CI 1.03-4.39). CONCLUSION: Supervision and exposure to training in patient's rights and confidentiality improved HCWs' understanding and advocacy of dignified and respectful TB-HIV care. All HCWs are equally likely to be allies, agents of change and amplifiers of an anti-stigma message, and broad engagement is required. Innovative approaches to reduce discrimination while ensuring proper IC-should be explored. PMID- 29025481 TI - Measuring HIV- and TB-related stigma among health care workers in South Africa: a validation and reliability study. AB - SETTING: Recent evidence indicates that human immunodeficiency virus (HIV) and tuberculosis (TB) related stigma act as a key barrier to the utilisation of associated occupational health services by South African health care workers (HCWs). It also highlights a dearth of appropriate tools to measure HIV and TB stigma among HCWs. OBJECTIVE: To test four scales measuring different aspects of stigma: respondent's external stigma (RES) and others' external stigma (OES) towards TB as well as HIV across different professional categories of HCWs. DESIGN: The current study employs data from a study on HIV and TB stigma among HCWs, a cluster randomised controlled trial for the collection of data among 882 HCWs in the Free State Province of South Africa. Confirmatory factor analyses and structural equation modelling were used to assess the validity and reliability of the scales. RESULTS: All four scales displayed adequate internal construct validity. Subsequent analysis demonstrated that all four scales were metric invariant, and that the OES scales were even scalar-invariant across patient and support staff groups. The scales displayed good reliability and external construct validity. CONCLUSION: Our results support the use of the scales developed to measure TB and HIV stigma among HCWs. Further research is, however, needed to fine tune the instruments and test them across different resource limited countries. PMID- 29025482 TI - TB and HIV stigma compounded by threatened masculinity: implications for TB health-care seeking in Malawi. AB - SETTING: Urban Blantyre, Malawi. OBJECTIVE: To understand why men with tuberculosis (TB) in the community remain undiagnosed. DESIGN: A multi-method qualitative study applying a modified grounded theory approach. Data were gathered from March 2011 to March 2012 from 134 men and women taking part in 1) focus group discussions with community members (n = 6) and health care workers (n = 2), and 2) in-depth interviews with TB patients (n = 20, females n = 14) and chronic coughers (n = 20, women n = 8). Data were analysed inductively to identify, refine and consolidate, and verify emerging concepts and themes. RESULTS: Two emerging themes highlighting compound stigma in this high human immunodeficiency virus (HIV) prevalence, low-income setting are presented. First, cough or any illness that portended a 'serious' condition were accompanied by portrayals of cough, TB and HIV as being interchangeable. Chronic coughers and TB patients described their illness in ways that foregrounded bodily decimation and rupture of social life and masculine identity. Second, 'resistance strategies' entailed resisting classification as (seriously) ill by evading or ambivalently approaching health care, or acknowledging the 'ill' status then actively pursuing health-appropriate behaviours, including changing lifestyle or adopting non normative gender roles. CONCLUSIONS: Managing patients requires 1) going beyond syndromic management based on vital signs and clinical indicators to recognising and intervening on health care-seeking related tensions to retain individuals in care, and 2) understanding and addressing TB stigma as it manifests and affects men and women differently in specific settings. PMID- 29025484 TI - 'It makes the patient's spirit weaker': tuberculosis stigma and gender interaction in Dar es Salaam, Tanzania. AB - SETTING: Dar es Salaam, Tanzania. OBJECTIVES: To describe tuberculosis (TB) related stigma and to understand how it interacts with gender to affect access to care. DESIGN: Eight focus group discussions were held among 48 TB patients and their household members, and a thematic content analysis was carried out. RESULTS: The main components of stigma were fear, self-isolation, ostracization, loss of status in the community, and discrimination by providers. Participants described the cultural context in which stigma operated as characterized by a general lack of health knowledge, cultural beliefs about TB, and engendered beliefs about disease in general. Both genders described some similar effects of stigma, including relationship difficulties and specifically challenges forming new relationships, but many effects of stigma were distinct by gender: women described challenges including assumptions about promiscuity and infidelity, as well as rejection by partners, while men described survival challenges. Stigma acted as a barrier to care through a cyclical pattern of stigma and fear, leading to health-seeking delays, with resulting continued transmission and poor health outcomes that further reinforced stigma. CONCLUSION: TB-related stigma is prevalent in this setting and operates differently for men and women. Interventions designed to increase case detection must address stigma and its interaction with gender. PMID- 29025483 TI - Depressive symptoms and hazardous/harmful alcohol use are prevalent and correlate with stigma among TB-HIV patients in Lesotho. AB - SETTING: Limited data exist on the prevalence and correlates, including stigma, of mental health conditions, including depressive symptoms and alcohol use, among patients co-infected with tuberculosis (TB) and the human immunodeficiency virus (HIV) in sub-Saharan Africa, despite their negative impact on health outcomes. OBJECTIVE: To assess the prevalence and correlates of depressive symptoms and hazardous/harmful alcohol use among TB-HIV patients in the Start TB patients on ART and Retain on Treatment (START) study. DESIGN: START, a mixed-methods cluster randomized trial, evaluated a combination intervention package vs. standard of care (SOC) to improve treatment outcomes in TB-HIV co-infected patients in Lesotho. Moderate/severe depressive symptoms and hazardous/harmful alcohol use were measured using baseline questionnaire data collected from April 2013 to March 2015. Demographic, psychosocial, and TB- and HIV-related knowledge and attitudes, including stigma, were assessed for association with both conditions using generalized linear mixed models. RESULTS: Among 371 participants, 29.8% reported moderate/severe depressive symptoms, and 24.7% reported hazardous/harmful alcohol use; 7% reported both. Depressive symptoms were significantly associated with less education, more difficulty understanding written medical information, non-disclosure of TB, greater TB stigma, and the SOC study arm. Hazardous/harmful alcohol use was significantly associated with male sex, as well as greater TB and external HIV stigma. CONCLUSION: Prevalence of depressive symptoms and hazardous/harmful alcohol use were high, suggesting a need for routine screening for, and treatment of, mental health disorders in TB HIV patients. PMID- 29025485 TI - Secondary analysis of tuberculosis stigma data from a cluster randomised trial in Zambia and South Africa (ZAMSTAR). AB - SETTING: Zambian and South African TB and HIV Reduction (ZAMSTAR) cluster randomised trial (CRT) communities, 2006-2009. OBJECTIVES: To develop TB stigma items, and evaluate changes in them in response to a household intervention aimed at reducing TB transmission and prevalence but not tailored to reduce stigma. DESIGN: TB stigma was measured at baseline and 18 months later among 1826 recently diagnosed TB patients and 1235 adult members of their households across 24 communities; 12 of 24 communities were randomised to receive the household intervention. We estimated the impact of the household intervention on TB stigma using standard CRT analytical methods. RESULTS: Among household members, prevalence of blame and belief in transmission myths fell in both study arms over time: adjusted prevalence ratios (aPRs) comparing the household intervention with the non-household intervention arm were respectively 0.61 (95%CI 0.26-1.44) and 0.77 (95%CI 0.48-1.25) at 18-month follow-up. Among TB patients, at baseline a low percentage experienced social exclusion and poor treatment by health staff and a relatively high percentage reported 'being made fun of', with little change over time. Disclosure of TB status increased over time in both study arms. Internalised stigma was less prevalent in the household arm at both baseline and follow-up, with an aPR of 0.85 (95%CI 0.41-1.76). Variability in stigma levels between countries and across communities was large. CONCLUSION: Robust TB stigma items were developed. TB stigma was not significantly reduced by the household intervention, although confidence intervals for estimated intervention effects were wide. We suggest that stigma-specific interventions are required to effectively address TB stigma. PMID- 29025486 TI - Using 15 DHS surveys to study epidemiological correlates of TB courtesy stigma and health-seeking behaviour. AB - SETTING: Tuberculosis (TB) stigma is thought to delay or prevent the decision to seek health care, but the strength of this association and the prevalence of anticipated TB stigma in the general population in most countries is unknown. OBJECTIVE: To examine epidemiological, cultural and sociodemographic factors associated with TB courtesy stigma in 15 surveys across 13 countries, and its link to health seeking for cough in children under five. DESIGN: A multilevel survey weighted logistic regression model was used to analyse how individual characteristics and social contexts affect the occurrence of TB courtesy stigma. The same modelling approach was used to analyse associations between TB courtesy stigma and individual-level predictors of health-seeking behaviour of mothers for children with cough. RESULTS: TB courtesy stigma varies greatly among countries. TB courtesy stigma was negatively correlated with knowledge of TB's curability (adjusted OR [aOR] 0.82; 95%CI 0.78-0.86) and human immunodeficiency virus (HIV) accepting attitudes (proxy for HIV stigma) (aOR 0.15, 95%CI 0.15-0.16). Mothers' health-seeking behaviour for children under five with cough was found to be positively correlated with HIV accepting attitudes (OR 1.16, 95%CI 1.08-1.25), but was marginally affected by TB courtesy stigma (OR 0.99, 95%CI 0.98-1.00). CONCLUSION: Improving the general awareness of the effectiveness of anti tuberculosis treatment will help to diminish TB courtesy stigma, and should be prioritised over expanding knowledge of mode of transmission. Efforts to reduce HIV and TB stigma may increase care seeking for childhood TB symptoms. PMID- 29025487 TI - Incorporating social justice and stigma in cost-effectiveness analysis: drug resistant tuberculosis treatment. AB - Novel therapies for multidrug-resistant tuberculosis (MDR-TB) are likely to be expensive. The cost of novel drugs (e.g., bedaquiline, delamanid) may be so prohibitively high that a traditional cost-effectiveness analysis (CEA) would rate regimens containing these drugs as not cost-effective. Traditional CEA may not appropriately account for considerations of social justice, and may put the most disadvantaged populations at greater risk. Using the example of novel drug regimens for MDR-TB, we propose a novel methodology, 'justice-enhanced CEA', and demonstrate how such an approach can simultaneously assess social justice impacts alongside traditional cost-effectiveness ratios. Justice-enhanced CEA, as we envision it, is performed in three steps: 1) systematic data collection about patients' lived experiences, 2) use of empirical findings to inform social justice assessments, and 3) incorporation of data-informed social justice assessments into a decision analytic framework that includes traditional CEA. These components are organized around a core framework of social justice developed by Bailey et al. to compare impacts on disadvantage not otherwise captured by CEA. Formal social justice assessments can produce three composite levels: 'expected not to worsen...', 'may worsen...', and 'expected to worsen clustering of disadvantage'. Levels of social justice impact would be assessed for each major type of outcome under each policy scenario compared. Social justice assessments are then overlaid side-by-side with cost-effectiveness assessments corresponding to each branch pathway on the decision tree. In conclusion, we present a 'justice-enhanced' framework that enables the incorporation of social justice concerns into traditional CEA for the evaluation of new regimens for MDR-TB. PMID- 29025488 TI - Stigma as a barrier to the use of occupational health units for tuberculosis services in South Africa. AB - SETTING: Tuberculosis (TB) is the leading cause of death in South Africa, and health care workers (HCWs) are disproportionally affected. The resulting absenteeism strains the already overburdened health system. Although hospital occupational health care units (OHUs) are cost-effective and of crucial importance in tackling the TB epidemic, the fear of being stigmatised by other colleagues might lead HCWs to avoid using OHUs. OBJECTIVE: To investigate whether the perception of TB stigma among colleagues has a negative effect on the willingness to use OHUs for TB services. DESIGN: In the Free State Province, South Africa, a representative sample of 804 HCWs from six hospitals were surveyed on workplace stigma as a predictor for the use of OHUs for TB services. Applying structural equation modelling, we also controlled for exogenous variables. RESULTS: There was a significant negative relationship between the perception of stigmatising attitudes and behaviours among co-workers and the use of OHUs for TB screening (beta -0.21, P = 0.000), treatment (beta -0.16, P = 0.001) and isoniazid preventive therapy (beta -0.17, P = 0.000). CONCLUSION: The negative effect of TB stigma on OHU use among HCWs can impact upon their health and increase hospital costs. This needs to be addressed by interventions combating TB stigma among HCWs in the workplace. PMID- 29025489 TI - Evidence-based interventions to reduce tuberculosis stigma: a systematic review. AB - SETTING: While substantial progress is being made in tuberculosis (TB) control, the success of public health efforts is hampered by pervasive stigma. OBJECTIVE: To perform a systematic literature review to assess the effectiveness of interventions aimed at reducing TB stigma in patients, health care workers, care givers and the general community. DESIGN: Studies were eligible for inclusion if they evaluated interventions aimed at reducing TB stigma and were published between 1950 and 2015. We searched eight databases (PubMed, Cochrane Library, Ovid, Embase, PsycInfo, Sociological Abstracts, Cumulative Index to Nursing and Allied Health Literature, World Health Organization Latin American and Caribbean Health Sciences Literature), and complemented the searches by using the snowball strategy and by reviewing relevant grey literature. RESULTS: Only seven studies were identified as providing quantitative (n = 4) or qualitative (n = 3) evidence of effectiveness in reducing TB stigma. Quality assessment of the studies was poor. Knowledge-shaping and attitude-changing interventions aimed at the public, patients and their families were effective in reducing anticipated stigma. Home visits and support groups were effective in reducing both anticipated and internalised stigma. CONCLUSION: There is a dearth of reliable information on the effectiveness of TB stigma-reduction interventions. Knowledge-shaping, attitude changing and patient-support interventions can be effective in reducing TB stigma, but more rigorous evaluations are needed. PMID- 29025491 TI - Review of postoperative care for Samter's triad patients undergoing endoscopic sinus surgery: A double-blinded, randomized controlled trial. PMID- 29025492 TI - Esthesioneuroblastoma: The Princess Margaret Hospital experience. PMID- 29025493 TI - Addendum. PMID- 29025490 TI - Defining the research agenda to measure and reduce tuberculosis stigmas. AB - Crucial to finding and treating the 4 million tuberculosis (TB) patients currently missed by national TB programmes, TB stigma is receiving well-deserved and long-delayed attention at the global level. However, the ability to measure and evaluate the success of TB stigma-reduction efforts is limited by the need for additional tools. At a 2016 TB stigma-measurement meeting held in The Hague, The Netherlands, stigma experts discussed and proposed a research agenda around four themes: 1) drivers: what are the main drivers and domains of TB stigma(s)?; 2) consequences: how consequential are TB stigmas and how are negative impacts most felt?; 3) burden: what is the global prevalence and distribution of TB stigma(s) and what explains any variation? 4): intervention: what can be done to reduce the extent and impact of TB stigma(s)? Each theme was further subdivided into research topics to be addressed to move the agenda forward. These include greater clarity on what causes TB stigmas to emerge and thrive, the difficulty of measuring the complexity of stigma, and the improbability of a universal stigma 'cure'. Nevertheless, these challenges should not hinder investments in the measurement and reduction of TB stigma. We believe it is time to focus on how, and not whether, the global community should measure and reduce TB stigma. PMID- 29025494 TI - Erratum: Sonography versus plain x rays in diagnosis of nasal fractures. PMID- 29025495 TI - Effectiveness of Social Media-based Interventions on Weight-related Behaviors and Body Weight Status: Review and Meta-analysis. AB - OBJECTIVES: We reviewed scientific literature regarding the effectiveness of social media-based interventions about weight-related behaviors and body weight status. METHODS: A keyword search were performed in May 2017 in the Clinical Trials.gov, Cochrane Library, PsycINFO, PubMed, and Web of Science databases. We conducted a meta-analysis to estimate the pooled effect size of social media based interventions on weight-related outcome measures. RESULTS: We identified 22 interventions from the keyword and reference search, including 12 randomized controlled trials, 6 pre-post studies and 3 cohort studies conducted in 9 countries during 2010-2016. The majority (N = 17) used Facebook, followed by Twitter (N = 4) and Instagram (N = 1). Intervention durations averaged 17.8 weeks with a mean sample size of 69. The meta-analysis showed that social media-based interventions were associated with a statistically significant, but clinically modest reduction of body weight by 1.01 kg, body mass index by 0.92 kg/m2, and waist circumstance by 2.65 cm, and an increase of daily number of steps taken by 1530. In the meta-regression there was no doseresponse effect with respect to intervention duration. CONCLUSIONS: The boom of social media provides an unprecedented opportunity to implement health promotion programs. Future interventions should make efforts to improve intervention scalability and effectiveness. PMID- 29025496 TI - The Perceived Impact of I am Moving, I am Learning on Physical Activity and Family Involvement: A Preliminary Investigation. AB - OBJECTIVES: The purpose of this study was to determine the perceived impact of I am Moving, I am Learning (IMIL) on physical activity (PA) levels, along with family and community involvement in a Head Start program in Illinois. METHODS: Employing qualitative methods, data were collected via a parent/caregiver survey and program staff focus groups in Rock Island, Illinois. RESULTS: IMIL was perceived to have made an impact in several areas including knowledge, health related behaviors, and supportive school and home environments. A positive impact also was reported regarding 6 types of family involvement (parenting, communicating, decision making, volunteering, community collaboration, and learning at home). CONCLUSIONS: Participants in the study reported that IMIL contributed to increased levels of PA and family/community involvement. The participants perceived that the use of IMIL helped parents/caregivers and their children become healthier, by improving the whole family's activity levels. Faculty and staff also reported that there were few barriers related to the implementation and sustainability of IMIL use in childcare settings. PMID- 29025497 TI - The Prevalence of Violent Behavior among Lebanese University Students: Association with Behavioral and Mental Health Factors. AB - OBJECTIVES: We estimated the prevalence of 2 key violent behaviors (weapons carrying and physical fighting), determined the health risk correlates of violent behavior, such as current tobacco smoking, alcohol binge drinking, and having multiple sexual partners, and investigated the potential mental health factors related to violent behavior among Lebanese university students. METHODS: Using a cross-sectional design, data were collected from 450 Lebanese university students based on proportionate cluster sampling. Various health and behavioral risk factors were considered for the analyses. RESULTS: The overall prevalence of weapon carrying and physical fighting was reported at 12.7% and 19.1%, respectively. Males reported more violent behavior than females; weapon carrying (20.7% vs 5.2%, p < .001), and physical fighting (31.8% vs 7.3%, p < .001). Students who engaged in violent behaviors were more likely to have risky health behaviors than those who were not involved in violent behaviors. Religiosity had a significant protective effect against engaging in physical fighting after adjusting for socio-demographic factors. CONCLUSIONS: This study bridges the gap in the literature about violent behavior among emerging adults in Lebanon. There is a need to monitor weapon carrying by university students especially in a volatile setting like Lebanon. PMID- 29025498 TI - Survey Development to Assess College Students' Perceptions of the Campus Environment. AB - OBJECTIVE: We developed and tested a College Environmental Perceptions Survey (CEPS) to assess college students' perceptions of the healthfulness of their campus. METHODS: CEPS was developed in 3 stages: questionnaire development, validity testing, and reliability testing. Questionnaire development was based on an extensive literature review and input from an expert panel to establish content validity. Face validity was established with the target population using cognitive interviews with 100 college students. Concurrent-criterion validity was established with in-depth interviews (N = 30) of college students compared to surveys completed by the same 30 students. Surveys completed by college students from 8 universities (N = 1147) were used to test internal structure (factor analysis) and internal consistency (Cronbach's alpha). RESULTS: After development and testing, 15 items remained from the original 48 items. A 5-factor solution emerged: physical activity (4 items, alpha = .635), water (3 items, alpha = .773), vending (2 items, alpha = .680), healthy food (2 items, alpha = .631), and policy (2 items, alpha = .573). The mean total score for all universities was 62.71 (+/-11.16) on a 100-point scale. CONCLUSION: CEPS appears to be a valid and reliable tool for assessing college students' perceptions of their health-related campus environment. PMID- 29025499 TI - Food Melt in Consumer Food Environments in Low-income Urban Neighborhoods. AB - OBJECTIVES: We systematically evaluated changes in availability, price, and quality of perishable food items from the beginning to the end of the month in lowincome, urban neighborhoods. METHODS: The sample included grocery stores or supermarkets in Cleveland, Ohio, within neighborhoods with >30% of population receiving food assistance. We collected data for 2 sequential months during the first and fourth weeks of each month. Two coders evaluated stores, collecting measures of availability, price, and quality for 50 items. We examined difference in number and proportion of items available at the beginning of the month (BOM) to items remaining available at the end of the month (EOM), as well as quality and price of those items. RESULTS: Across 48 stores, availability at EOM was lower than BOM; as store size increased, reduction in availability (ie, food melt) was significantly (p < .01) less pronounced. Overall, items became less expensive at the EOM whereas quality remained consistent; we noted no statistically significant differences by store type for price or quality. CONCLUSIONS: Food melt differentially affects individuals in neighborhoods without grocery stores. Findings reveal composition of food environments is dynamic rather than static, influencing food-purchasing choices among lowincome consumers. PMID- 29025500 TI - The Influence of Self-efficacy in Medical Drama Television Programming on Behaviors and Emotions that Promote Cervical Cancer Prevention. AB - OBJECTIVES: We explored the influences of medical drama viewing on health behaviors and emotions, and examined the role of self-efficacy in medical drama programming. METHODS: A single-factor, 2-condition experimental design that manipulated self-efficacy levels was adopted. A total of 131 female undergraduate students who were likely involved with the issues of HPV vaccination and cervical cancer participated in this experiment. RESULTS: In line with social cognitive theory, the results indicated that participants in the high self-efficacy condition showed greater behavioral intention to receive a Pap smear (F (1, 126) = 4.38, p < .05, partial eta2 = .03) and the HPV vaccine (F (1, 35) = 4.82, p < .05, partial eta2 = .12) and higher levels of hope (F (1, 126) = 12.22, p < .01, partial eta2 = .09) than participants in the low self-efficacy condition. In addition, hope mediated the relationship between self-efficacy condition and behavioral intention to receive a Pap smear (B = .16, SE = .08, 95% CI = [.04, .38]). CONCLUSIONS: Findings suggest that inclusion of self-efficacy information in entertainment programming may lead to beneficial health outcomes. Medical drama programming may act as an effective outlet to affect health behaviors and emotions of the larger public, ultimately enhancing public health. PMID- 29025501 TI - Promoting the Well-being of Urban Youth through Drama-based Peer Education. AB - OBJECTIVES: The aim of this study was to examine youths' perceptions of a drama based peer education approach to promote adolescent well-being. METHODS: High school students facilitated workshops on one of 7 topics (eg, dating violence) for 4733 urban elementary, middle, and high school students. Audience members' perceptions of workshop content and implementation were examined. RESULTS: Analyses suggest that the peer-led workshops addressed important problems for youth in the community, were an effective way to deliver information about the topics to children and teens, and helped audience members to learn more about the topics and how to make responsible decisions. The study also found that some program outcomes differed by sex and age. CONCLUSIONS: Findings suggest that school-based peer education that integrates drama arts is a promising approach for promoting wellness and reducing exposure to violence among urban youth. In addition, findings suggest that we can facilitate positive outcomes to the extent that we match program content to the developmental needs of children and adolescents. The implications of these findings are discussed in terms of advancing research on drama-based peer education interventions for urban youth. PMID- 29025502 TI - Who Enrolls in a Quit Smoking Program with Yoga Therapy? AB - OBJECTIVES: Yoga may improve stress, affect, and weight control, all of which are commonly cited barriers to quitting smoking. However, the importance of these concerns may vary by sex, race, ethnicity, and age. We examined smoking-relevant characteristics of individuals enrolling in an 8-week randomized controlled trial testing yoga as a complementary treatment to standard smoking cessation. METHODS: Of 958 callers, 227 were eligible and enrolled. RESULTS: The sample was 55% female, 86% non-Hispanic white, with a mean age of 46 years (SD = 12). Males smoked more cigarettes/ day than females and had lower motivation to quit smoking. Females were more likely to smoke for weight control, social and mood related reasons, and had higher expectations for the efficacy of yoga. Age was negatively associated with the presence of other smokers in the household, and smoking in response to negative moods, and was positively associated with smoking rate, and confidence in quitting. CONCLUSIONS: This study demonstrated that both males and females were interested in a program offering yoga as a complementary therapy for smoking cessation. However, there were both sex and age-related differences with respect to smoking-related variables that may suggest a need to adapt the intervention for sub-populations. PMID- 29025503 TI - E-cigarette Use and Cigarette Smoking Cessation among Texas College Students. AB - OBJECTIVES: We examined the relationships between e-cigarette use and subsequent cigarette smoking behaviors at 6- and 12-month follow-ups among young adults. METHODS: Participants were 18-29 year-old current and former cigarette smokers (N = 627) at 24 Texas colleges, participating in a 3-wave study. Multi-level, multivariable logistic regression models, accounting for school clustering, examined the impact of self-reported use of e-cigarettes on cigarette smoking status at 6- and 12-month follow-ups. Two mutually-exclusive groups of e cigarette users were examined: those that used for cigarette smoking cessation and those that used for reasons other than cessation. Baseline covariates included socio-demographics, past quit attempts, nicotine dependence, cigarettes per day, and other tobacco use. RESULTS: Use of e-cigarettes for cigarette smoking cessation was associated with increased odds of cigarette smoking cessation at 6- and 12-month follow-ups, while using e-cigarettes for other reasons was not, when adjusting for covariates. CONCLUSIONS: Use of e-cigarettes for cigarette smoking cessation may reduce cigarette smoking rates in young adult college students. Additional research is needed examining e-cigarettes as a complement to evidence-based cessation resources that are associated with cigarette smoking cessation among young adults. PMID- 29025504 TI - Distress Tolerance Links Sleep Problems with Stress and Health in Homeless. AB - OBJECTIVE: We examined associations between sleep problems, distress intolerance, and perceived stress and health in a convenience sample of homeless adults. METHODS: Participants (N = 513, 36% women, Mage = 44.5 +/-11.9) self-reported sleep adequacy, sleep duration, unintentional sleep during the daytime, distress tolerance, urban stress, and days of poor mental health and days of poor physical health over the last month. The indirect effects of sleep problems on stress and health through distress tolerance were examined using a non-parametric, bias corrected bootstrapping procedure. RESULTS: Sleep problems were prevalent (eg, 13.0 +/-11.4 days of inadequate sleep and 4.7 +/-7.9 days of unintentionally falling asleep during the preceding month). Distress intolerance partially accounted for the associations of inadequate sleep and unintentionally falling asleep, but not sleep duration, with urban stress and more days of poor mental and physical health. CONCLUSIONS: Many homeless individuals endure sleep problems. Given the connections between sleep and morbidity and mortality, results further support the need for more attention directed toward facilitating improvements in sleep quality to improve the quality of life of homeless adults, potentially including attention to improving distress tolerance skills. PMID- 29025505 TI - Household Food Security Discordance Among Latino Adolescents and Parents. AB - OBJECTIVES: We determined the degree of parent-adolescent concordance in reported household food security, and delineated variation in concordance as a function of selected household and parent-adolescent relationship characteristics. METHODS: Cross-tabulations and Cohen's Kappa determined concordance. Multinomial logistic regressions delineated variation in concordance as a function of selected household and parent-adolescent relationship characteristics for Latino parent and adolescent dyads (N = 70). RESULTS: Nearly half the households had concordant reports of household food security, but 34% were "discordant" such that parents reported food insecurity but adolescents did not, and 17% were "discordant" wherein adolescents reported food insecurity but parents did not. Elevated parent adolescent conflict was associated with greater odds of discordance wherein adolescent reported food insecurity but parent did not. Households with female adolescents and income >= $30,000/year were associated with lower odds of discordance wherein parent reported food insecurity but adolescent did not. CONCLUSIONS: Discordant reports of Latino household food security suggest the burden of unequal access to sufficient foods may be underestimated. Discordant reports may follow from cultural values that may encourage adolescents to keep hunger from their parents. PMID- 29025506 TI - Maintenance of Lifestyle Changes at 12-month Follow-up in a Nutrition and Physical Activity Trial for Cancer Survivors. AB - OBJECTIVES: In this paper, we report maintenance of behavior change in a nutrition and physical activity intervention for cancer survivors at 12-months follow-up. METHODS: The ENRICH (Exercise and Nutrition Routine Improving Cancer Health) program was an 8-week face-to-face program for cancer survivors and caregivers, focused on healthy eating, healthy weight, resistance training, and a walking program. Randomized controlled trial participants completed a survey and 7-days of pedometry at baseline, 8-weeks, and 20-weeks. Intervention participants completed 12-month measures. Maintenance was assessed by examining change between 20-weeks and 12-months for cancer survivors. RESULTS: Sixty cancer survivors in the intervention group completed baseline data collection, and 29 (48%) completed 12-month assessments. Initial improvements in step counts, weight, and body mass index were maintained from 20-weeks to 12-months. Vegetable consumption declined significantly (difference -30g/day; p = .04). Moderate-to-vigorous physical activity increased significantly (difference 55 minutes/week; p = .05). CONCLUSIONS: Physical activity and weight improvements were maintained over 12 months indicating the potential for a multiple health behavior intervention to help cancer survivors sustain improvements to lifestyle behaviors. Additional support is warranted to assist cancer survivors to make and maintain dietary changes. PMID- 29025507 TI - Development and Validation of the Outcome Expectations for Yoga Scale. AB - OBJECTIVE: Our objective was to develop an instrument that can measure outcome expectations of yoga and to evaluate the instrument for internal consistency and initial construct validity. METHODS: A 20-item scale was developed to assess physical, mental, and spiritual health benefits related to yoga practice among adults. The scale was tested in a baseline survey with adults participating in a clinical trial. Principal component analysis was used to investigate the internal structure of the measure. Outcome expectations for yoga were examined for demographic differences. RESULTS: The sample (N = 185) was 54% women, 89% white and had a mean age of 46 years. The final 20-item scale had high item loadings that ranged from .57 to .88 with a Cronbach's alpha value of .96. Significant differences were found in outcome expectation score by sex. CONCLUSION: This newly developed scale can be used to assess outcome expectations for yoga and tailor interventions to promote adherence to yoga practice. PMID- 29025510 TI - Editorial. PMID- 29025508 TI - Discrepancy in Motivation for Weight Loss and Exercise in Rural Patients. AB - OBJECTIVES: We explored the extent to which discrepancy between motivation for weight loss and exercise is related to obesity among rural patients with chronic disease, and identified the psychosocial correlates of this discrepancy. METHODS: 497 patients with diabetes and/or hypertension were recruited from a network of Federally Qualified Health Centers in the rural South and completed a battery of assessments. RESULTS: Most persons in the sample (83.1%) were overweight and 65.0% were obese. For motivation for change, 70.8% reported being in the Action stage or higher for weight loss, whereas only 24.9% reported being in the Action stage or higher for motivation for exercise. When controlling for age, education level, income, sex, and race/ethnicity, individuals who were motivated for weight loss but not exercise were twice as likely to be obese (p = .005). Race and sex were significantly associated with this discrepancy, with African-American patients 1.7 times as likely (p = .05) and women 2.3 times as likely to be discrepant (p = .001). CONCLUSIONS: Findings underscore the importance of focusing not simply on weight loss among rural patients with chronic disease, but rather to incorporate specific activities designed to build simultaneous motivation for engaging in exercise. PMID- 29025511 TI - Development and Validation of the Perception of Self-Monitoring of Blood Glucose Scale in Insulin-Treated Patients With Diabetes. AB - BACKGROUND AND PURPOSE: The Perception of Self-Monitoring of Blood Glucose (P SMBG) scale was developed and validated to assess perceptions of self-monitoring of blood glucose (SMBG) in insulin-treated patients with diabetes. METHOD: An initial 68-item version of the P-SMBG has been evaluated by a panel of professionals and patients. A sample of 375 patients tested the revised scale. RESULTS: Factor analysis suggested a 19-item scale and a 2-factor structure, separating negatively and positively worded items. Cronbach's alpha was .84 and .72, and the intraclass correlation coefficient was .66 and .57, respectively for both factors. Item-total correlations were in the range of .23-.66. Convergent/divergent validity was confirmed for the negatively worded items. CONCLUSIONS: The final P-SMBG scale (21 items) can be used to assess positive and negative perceptions of SMBG in insulin-treated patients with diabetes. PMID- 29025509 TI - Clinic Appointment Attendance in Adults with Serious Mental Illness and Diabetes. AB - OBJECTIVES: We assessed characteristics that may predict outpatient appointment attendance in outpatient medical clinics among patients comorbid for serious mental illness (SMI) and type 2 diabetes (DM). METHODS: Baseline covariate data from 200 individuals with SMI-DM enrolled in a randomized controlled trial (RCT) were used to examine characteristics associated with electronic health record identified clinic appointment attendance using a generalized estimating equations approach. The analyses evaluated the relationship between clinic attendance and potentially modifiable factors including disease knowledge, self-efficacy, social support, physical health, and mental health, as well as demographic information. RESULTS: Demographic and mental health characteristics were most associated with clinic attendance in adults with SMI-DM. Physical health was not associated with clinic attendance. CONCLUSIONS: Information on clinical and demographic characteristics and factors potentially modifiable by psychological interventions may be useful in improving adherence to treatment among SMI-DM patients. It is our hope that clinicians and researchers will use these results to help tailor adherence-facilitating interventions among people at particular risk for poor engagement in care. PMID- 29025512 TI - Impact of mitomycin C on the mRNA expression signatures of immunological biomarkers in eosinophilic nasal polyposis. AB - BACKGROUND: The topical application of mitomycin C has been evaluated as a complementary therapy for eosinophilic nasal polyposis (ENP). However, the mechanism underlying the additional benefits of mitomycin C for the control of eosinophilic inflammation and prevention of posttherapeutic relapse remains to be elucidated. In this work, the aim was to characterize the gene expression profile by quantitative real-time polymerase chain reaction (qPCR) of proinflammatory and regulatory biomarkers that are typically associated with ENP and to assess the impact of the topical application of mitomycin C on the nasal mucosal tissue immunologic milieu after ENP surgery. METHODS: We have selected 20 patients with ENP that were recommended to undergo surgical intervention. Normal mucosal tissue was obtained from healthy nasal mucosa from six patients with absence of eosinophilic infiltration. To test the effect of mitomycin C, one side of the maxillary sinus mucosa was selected for topical application of this drug and the other received no further treatment and acted as the control. The genes interleukin-4 (IL-4), IL-5, IL-10, IL-13, chemokine (C-C motif) ligand 5 (CCL5), CCL24, colony-stimulating factor 2 (CSF2), transforming growth factor beta 1 (TGFB1), tumor necrosis factor alpha (TNF-alpha), and beta actin (ACTB) were selected for gene expression analysis by qPCR. RESULTS: The data showed higher expression of proinflammatory biomarkers and lower levels of regulatory TGFB1 transcripts in ENP mucosal tissue. Surgery with topical application of mitomycin C induced a prominent transcriptional down-regulation of the immunologic biomarkers, CCL24, TNF-alpha, CSF2, and IL-5, in ENP mucosal tissue. Additionally, this treatment restored the levels of chemokines and cytokines to those observed in the nasal mucosal tissue of control subjects, except for TGFB1, which remained below the reference pattern. Moreover, CSF2 was identified as a putative biomarker with significant predictive value for complementary prophylactic purposes after surgery in ENP patients. CONCLUSION: After the characterization of the expression signatures of immunologic biomarkers in ENP, we observed that the topical use of mitomycin C is important for the reestablishment of the immunologic microenvironment of a normal expression profile of biomarkers involved in ENP mucosal tissue. PMID- 29025513 TI - A case-control study of the risk factors associated with sinonasal inverted papilloma. AB - BACKGROUND: The etiology of sinonasal inverted papilloma (IP) is unknown. This study was designed to evaluate the possible risk factors associated with IP Methods: This is a case-control epidemiology study in a tertiary referral center. Fifty patients with IP and 150 matched controls were interviewed using a questionnaire on suspected risk factors. Univariate analysis of the risk factors and calculation of the matched odds ratios, the corresponding 95% CIs, and p values was performed. Significant risk factors were further studied using conditional logistic regression analysis. RESULTS: Outdoor and industrial occupations were associated with IP. Tobacco smoking, drinking alcohol, history of allergic rhinitis, sinusitis, nasal polyp, non-sinonasal papilloma and non sinonasal malignancy were not significant factors. CONCLUSION: Outdoor and industrial occupations were associated with IP and may be potential risk factors. Future studies are warranted to further evaluate the individual type of occupation and chemical involved. PMID- 29025515 TI - Regional variations in chronic rhinosinusitis. PMID- 29025514 TI - Septal deviation and nasal resistance: An investigation using virtual surgery and computational fluid dynamics. AB - BACKGROUND: Septal deviation is an extremely common anatomic variation in healthy adults. However, there are no standard criteria to determine when a deviated septum is clinically relevant. Presently, selection of patients for septoplasty is based on mostly clinical examination, which is prone to observer bias and may lead to unsuccessful treatment. The objective of this article is twofold. First, we investigate whether the location of a septal deviation within the nasal passages affects nasal resistance. Second, we test whether computer simulations are consistent with rhinomanometry studies in predicting that anterior septal deviations increase nasal resistance more than posterior deviations. METHODS: A three-dimensional computational model of a healthy nose was created from computed tomography scans. Geometry-deforming software was used to produce models with septal deviations. Computational fluid dynamics techniques were used to simulate nasal airflow and compute nasal resistance. RESULTS: Our results revealed that the posterior nasal cavity can accommodate significant septal deviations without a substantial increase in airway resistance. In contrast, a deviation in the nasal valve region more than doubled nasal resistance. These findings are in good agreement with the rhinomanometry literature and with the observation that patients with anterior septal deviations benefit the most from septoplasty. CONCLUSION: In the model, anterior septal deviations increased nasal resistance more than posterior deviations. This suggests, in agreement with the literature, that other causes of nasal obstruction (dysfunction of the nasal valve, allergy, etc.) should be carefully considered in patients with posterior septal deviations because such deviations may not affect nasal resistance. This study illustrates how computational modeling and virtual manipulation of the nasal geometry are useful to investigate nasal physiology. PMID- 29025516 TI - Letter to the Editor. PMID- 29025518 TI - Editorial. PMID- 29025517 TI - Satisfaction with maxillary sinus surgery might be influenced by risk factors. AB - Chronic rhinosinusitis (CRS) is an inflammation of the nose and paranasal sinuses lasting for >=12 weeks. Endoscopic sinus surgery (ESS) is considered during difficult to treat CRS. The minimally invasive technique focuses on the transition areas rather than on the ostia. The aim of this study was to evaluate symptoms, the number of acute sinusitis episodes, and satisfaction after ESS with either preservation or enlargement of the maxillary sinus ostium. Thirty patients with moderate nonpolypous CRS were enrolled. Uncinectomy only and additional middle meatal antrostomy were randomized for each side of each patient and performed single blindly. The symptoms questionnaires were filled at four time intervals. Significant symptom reduction was achieved independently of operation technique. The number of acute sinusitis episodes indicating the exacerbation rate decreased significantly at 9 and, on average, 68 months postoperatively. However, the exacerbation rate began to increase after 9 months postoperatively. Three revisions were performed on the side with uncinectomy only and one on the side with additional antrostomy. Most patients reported good satisfaction with both procedures. There was a trend for patients with asthma and/or job exposure to report insignificantly more frequently no satisfaction with surgery, especially with the uncinectomy-only procedure. Both procedures seem to be efficient in providing symptom relief and satisfaction. More studies are needed to evaluate if patients with risk factors benefit more from an ostium-enlarging procedure. PMID- 29025519 TI - Use of the Rasch Model for Initial Testing of Fit Statistics and Rating Scale Diagnosis for a General Anesthesia Satisfaction Questionnaire. AB - BACKGROUND AND PURPOSE: The level of patient satisfaction is a result of a complex set of interactions between the patient and the health care provider. It is important to quantify satisfaction with care because it involves the patient in the care experience and decreases the potential gap between expected and actual care delivered. METHODS: We tested a preliminary 23-item instrument to measure patient satisfaction with general anesthesia care. The rating scale Rasch model was chosen as the framework. RESULTS: There were 10 items found to have sufficient evidence of stable fit statistics. Items included 2 questions related to information provided, 2 questions related to concern and kindness of the provider, and 1 question each for interpersonal skills of the provider, attention by the provider, feeling safe, well-being, privacy, and overall anesthesia satisfaction. CONCLUSION: Such actions as providing enough time to understand the anesthesia plan, answering questions related to the anesthetic, showing kindness and concern for the patient, displaying good interpersonal skills, providing adequate attention to the patient, providing a safe environment that maintains privacy and provides a sense of well-being are important actions that are well within the control of individual anesthesia providers and may lead to improved care from the perception of the patient. PMID- 29025521 TI - Restricting indications for sinonasal computed tomography in children with cystic fibrosis. PMID- 29025520 TI - Validation of the Brazilian Version of the Newcastle Satisfaction With Nursing Scales: A Partial Least Squares Path Modeling Approach. AB - BACKGROUND AND PURPOSE: Assessing patient satisfaction requires reliable and valid instruments. This study evaluated the reliability and validity of the Brazilian version of the Newcastle Satisfaction with Nursing Scales (B-NSNS). METHODS: This cross-sectional study enrolled 351 adult inpatients. Partial least squares path modeling (PLS-PM) approach was used to evaluate the reliability and validity of this instrument. RESULTS: After the adjustments of model, both constructs exhibited adequate convergent and discriminant validity, showing that experiences with nursing care have a significant effect on patient satisfaction (r = .70) and account for 49.1% of the variance in patient satisfaction with the nursing care (R2 = 0.49). CONCLUSIONS: The B-NSNS result in a valid and reliable measure for use in managing nursing care. PMID- 29025522 TI - Measuring Maternal Health Literacy in Adolescents Attending Antenatal Care in Uganda: Exploring the Dimensionality of the Health Literacy Concept Studying a Composite Scale. AB - BACKGROUND AND PURPOSE: The purpose of this article is to test the requirement of "local independence" in the newly developed "Maternal Health Literacy" (MaHeLi) composite scale measuring health literacy in pregnant adolescents attending antenatal care. METHODS: The 20-item scale was administered to 384 adolescents aged 15-19 years attending antenatal care in Uganda during the period July December 2013. Rasch analysis was conducted using RUMM2030. RESULTS: Differential item functioning was observed for 3 items. One item had disordered response categories. One subscale brought substantial multidimensionality into the MaHeLi scale. CONCLUSIONS: Results support the use of a 12-item version of the MaHeLi scale. The article shows how Rasch analyses help us to identify violations of local independence in scales. PMID- 29025523 TI - Construct Validity of the Brazilian Version of the Self-Efficacy for Appropriate Medication Adherence Scale. AB - BACKGROUND AND PURPOSE: This study aimed to evaluate the reliability and the construct validity of the Brazilian version of the Self-Efficacy for Appropriate Medication Adherence Scale (SEAMS). METHODS: One hundred forty-seven patients with coronary artery disease participated in the study. Reliability was estimated by composite reliability (CR). Convergent validity was estimated by the factor loading and average variance extracted (AVE). The discriminant validity was assessed by cross-factor loadings, comparing the square roots of AVEs by correlation coefficients between latent constructs and disattenuated correlation. RESULTS: The values of CR of .88 and .99 for Factors 1 and 2, respectively, indicate internal consistency reliability. Values of AVE = 0.52 for Factor 1 and 0.69 for Factor 2 to the convergent validity of the model. Cross-factor loadings were found >=.50 for all items of the scale in areas that were allocated in the original instrument, square roots of AVEs higher than the correlations between the constructs and desatenuada correlation (r = .83), suggesting discriminant validity fashion model. CONCLUSION: Confirmatory factor analysis partially yielded the construct validity of the Brazilian version of the SEAMS. PMID- 29025524 TI - [Neonatal Morbidity and Gestational Diabetes: Coincidence or Consequence of the 2011 Protocol]. AB - INTRODUCTION: Gestational diabetes is one of the diseases associated with pregnancy with higher rate of complications. Despite being a transitory condition, short and long term complications related to gestational diabetes have been described. There is scientific evidence to say that good metabolic control decreases perinatal complications. In 2011, new criteria was proposed for its diagnosis, which made possible its diagnosis during the 1st trimester of pregnancy. The aim of this study is to compare neonatal morbidity in two groups of women with gestational diabetes diagnosis before and after the latest Portuguese guidelines for diabetes and pregnancy were published (February 2011). MATERIAL AND METHODS: We included all newborns born in Maternidade Bissaya Barreto whose mother, followed at our maternity between 2008 and 2013, had unifetal pregnancy complicated by diabetes. We used a perinatal database and analysed the impact of the new guidelines in perinatal morbidity over two periods of three years. RESULTS: There were 774 women who met the inclusion criteria. We found that gestational diabetes was diagnosed earlier, insulin therapy was more frequent. Neonatal morbidity was increased, and there were more cases of neonatal hypoglycemia and congenital anomalies, and newborns became smaller for gestational age. DISCUSSION: The increase in neonatal morbidity was associated with early diagnosis and rigorous metabolic control. CONCLUSION: To analyse national data will be fundamental to understand this unexpected increase in morbidity. PMID- 29025525 TI - [Translation and Validation of the FOUR Scale for Children and its Use as Outcome Predictor: A Pilot Study]. AB - INTRODUCTION: The Full Outline of UnResponsiveness - FOUR scale has been previously validated to assess impaired consciousness in the adult population. The aim of this study is the translation into Portuguese and validation of the FOUR scale in the pediatric population. The study also compares the FOUR scale and Glasgow coma scale score ratings and the clinical outcome of patients hospitalized in Pediatric Intensive Care Units. MATERIAL AND METHODS: This study prospectively rated patients admitted to the Pediatric Intensive Care Units with impaired consciousness during one year. Both scales were applied daily to patients by three types of examiners: intensivists, residents and nurses, from the moment of admission until clinical discharge. Neurological sequelae was evaluated using the King's Outcome Scale for Childhood Head Injury - KOSCHI. RESULTS: Twenty seven patients between one and 17 years of age were included. Both scales are reliable and inter-rater reliability was greater for the FOUR score. Glasgow coma scale showed a minimum score in eight evaluations, whereas the FOUR scale obtained the minimum score in only two of these evaluations. In both scales there was a strong association between the admission score and the patient's outcome (area under curve FOUR = 0.939, versus Glasgow coma scale = 0.925). DISCUSSION: The FOUR scale provides more neurological information than Glasgow coma scale in patients with impaired consciousness and has prognostic interest. CONCLUSION: The FOUR scale can be applied in patients admitted with impaired consciousness in Pediatric Intensive Care Units. We think that a multicenter study would be very beneficial for confirming and generalizing these results. PMID- 29025526 TI - Hospital-Acquired Urinary Tract Infections: Results of a Cohort Study Performed in an Internal Medicine Department. AB - INTRODUCTION: Urinary tract infections are the most frequent healthcare associated infections, being related to both high costs and morbidity. Our intention was to carry out an epidemiological characterization of hospital acquired urinary tract infections that occurred in an internal medicine department of a Portuguese hospital. MATERIAL AND METHODS: Retrospective cohort study (historic cohort). Data were analysed from a systematic random sample of 388 patients, representative of the 3492 admissions occurred in 2014 in that department. RESULTS: One in four patients underwent the placement of a bladder catheter [24.7% (n = 96); 95% CI: 20% - 29%], 36.5% (95% CI: 33% - 48%) of which in the absence of clinical criteria for that procedure. The global cumulative incidence rate for nosocomial urinary tract infections was 4.6% (95% CI: 2.5% - 6.7%). Most hospital acquired urinary tract infections (61.1%) were related to bladder catheter use. We quantified 3.06 infections / 1000 patient-days and 14.5 infections / 1000 catheter-days. Catheter associated urinary tract infection occurred at an early stage of hospitalization. The vast majority of patients (66.7%) that developed a catheter associated urinary tract infection were subjected to bladder catheter placement at emergency department. Seventy one per cent of catheter associated urinary tract infection occurred in patients that were subjected to bladder catheter placement without criteria. DISCUSSION: These results point to an excessive and inadequate use of urinary catheters, highlighting the need for judicious use taking into account the formal clinical indications. The incidence of catheter associated urinary tract infection is similar to what we found in other studies. Nevertheless we found a very high incidence density per catheter-days that may foresee a problem probably related to the absence of early withdrawal of the device, and to both bladder catheter placement and maintenance practices. A significant part of catheter associated urinary tract infection occurred in patients that had the bladder catheter placed in the emergency department, before the admission to the internal medicine ward, which highlights the need to assess the urinary catheterization practices in those departments. CONCLUSION: The high rate of catheter associated urinary tract infection that occurred in the absence of bladder placement indication reinforces the need to implement prevention strategies that contemplate the reduction of its use. Emergency departments should be part of quality improvement projects in this area. Causes for the early onset of catheter associated urinary tract infection in this cohort should be investigated. PMID- 29025527 TI - [Being a Mother After 35 Years: Will it be Different?] AB - INTRODUCTION: Advanced maternal age is defined as maternity after 35 years old and is associated with more complications during pregnancy and neonatal period as well as decreased fertility. This study aims to examine the relationship between advanced maternal age and their maternal and fetal consequences, as well as maternal perception of the risk of pregnancy after 35 years old. MATERIAL AND METHODS: Observational, retrospective and comparative study, between two groups: advanced maternal age group (aged >= 35 years) and non-advanced maternal age group (age < 35 years), conducted between March and June 2015. Chi-square test and Fisher's exact test were used and considered significant if p < 0.05. RESULTS: Of the 736 women admitted to the hospital (32.2% with advanced maternal age), 306 were included in the study (153 in each group). In the non-advanced maternal age group there was a greater number of primiparous women (p < 0.01). In the advanced maternal age group, more previous miscarriages were observed (p < 0.001), as well as a higher use of assisted reproductive techniques (p < 0.01), preformed of amniocentesis (p < 0.001) and dystocia, including caesarean sections (p < 0.001). No association was found regarding the presence of maternal complications in pregnancy, birth defects, need for neonatal resuscitation or prematurity. As for the perception of risk in pregnancy, the non-advanced maternal age group considered it to be superior (p < 0.05). DISCUSSION: Most women of advanced maternal age have term deliveries without complications. Neonatal outcomes seem not to have been influenced by the advanced maternal age. CONCLUSION: The consequences of an advanced maternal age pregnancy in this sample did not have the same clinical expression as described in the literature. In the future, advanced maternal age will possibly be considered after age 40. PMID- 29025529 TI - [Volume or Value? The Role of the Radiologist in Managing Radiological Exams]. AB - INTRODUCTION: The purpose of this study was to understand the reasons and quantify the number of ultrasounds and computed tomographies that are potentially wasted in the hospital emergency in our institution, and the importance that the radiologist can have in the management and screening of these exams. MATERIAL AND METHODS: It was decided that urgent tests that were pending for more than seven days would be the object of analysis as to why they were not performed, consulting the electronic medical records. Six causes were used to cancel the requests: 'Changing the patient's status', 'Patient's withdrawal, refusal or abandonment', 'Patient's death'; 'No criteria or contraindicated', 'Lack of human resources' and 'Mistaken request'. RESULTS: In the year 2015 we obtained 1211 canceled exams, since they were pending more than a week ago. The first four causes totaled 602 exams (sum of 283, 94, 41 and 184). The last two, 609 (sum of 29 and 580). DISCUSSION: It was verified that the 602 exams corresponding to the sum of the first four causes reflected a potential waste in clinical tests since they were not determinant in the approach of the Emergency episode nor on the final destiny of the patient. Under the tip of the iceberg may exist further examinations and patients who have not escaped inadequate or unjustified examinations. CONCLUSION: The radiologist can better manage the required radiological examinations, effectively screening within a multidisciplinary team environment, promoting the development and supporting the respect of guidelines, and potentially reducing requests through opinions or second opinions. PMID- 29025528 TI - [Evaluation of the Function and Quality of Life after Total Hip Arthroplasty by Different Approaches]. AB - INTRODUCTION: To assess the function and quality of life in patients undergoing total hip arthroplasty distinguishing two surgical approaches (posterior / anterolateral) used by the Orthopedics department of Centro Hospitalar de Leiria. MATERIAL AND METHODS: Retrospective study of 94 patients subject to unilateral hip replacement surgery, using the 'Hip Osteoarthritis Outcome Score' (HOOS LK 2.0) questionnaire, the Trendelenburg test and evaluation of muscle strength of the hip abductor muscles with dynamometer. Patients were evaluated at six months, 12 months, 18 months and 24 months after surgery. RESULTS: The study revealed that 97.9% patients completed the rehabilitation program. The postoperative evolution (six to 24 months) does not appear to have any differences in results when comparing both approaches. At six months the patient operated by the anterolateral approach showed worse results when compared with the posterior approach, in particular in Hip Osteoarthritis Outcome Score pain, in Hip Osteoarthritis Outcome Score symptoms and Hip Osteoarthritis Outcome Score activities of daily living. After 24 months, no differences between the two surgical approaches were found. Of the 94 patients evaluated, the Trendelenburg test was positive in 31% of patients of which 81.9% corresponds to patients operated by the anterolateral approach. Muscle strength of the abductors of the operated hip was clearly lower in the anterolateral approach at six months, 12 months, and 24 months. DISCUSSION: This study showed that, in the first six months after total hip arthroplasty, the patients operated by the posterior approach were, according to the HOOS questionnaire, less symptomatic, and presented with better quality of life and less impact on activities of daily living and in sport and leisure when compared with the patients operated by the anterolateral approach. However, these differences were matched over the 24 months. Moreover, the results of muscle strength of the abductor muscles of the hip were clearly superior in patients operated by the posterior approach at six months, at 12 months and at 24 months compared to the patients operated by the anterolateral approach. CONCLUSION: After 24 months post total hip arthroplasty there are no differences between the two approaches with regard to function or quality of life. However, the patients operated by the anterolateral approach had greater muscle strength deficits and higher percentage of positive Trendelenburg test. PMID- 29025530 TI - Intensive Follow-Up After Curative Surgery for Colorectal Cancer. AB - INTRODUCTION: The purpose of postoperative surveillance programs after curative treatment for colorectal cancer is to detect asymptomatic recurrences with the premise that an important rate will be eligible for curative resection, improving overall survival. We have implemented a surveillance program for patients with colorectal cancer, stages II-III, with periodic clinical, carcinoembryonic antigen and cancer antigen-19-9 assessment, computed tomography and colonoscopy. The aim of this study was to assess the rate of curative treatment of recurrence, colorectal cancer mortality and clinical characteristics associated with non resectable recurrence. MATERIAL AND METHODS: Open cohort study, single center. All patients on the intensive surveillance program between March 2008 and January 2015 were included. STATISTICS: chi-square, Wilcoxon rank sum test, logistic regression, Kaplan-Meier log-rank test (SPSS20(r)). RESULTS: We had a total 404 patients evaluated; 59.6% male; mean age of 65 +/- 10 years; 50.7% rectal tumor; 56.2% stage III. The average time of follow-up was 37 months and the recurrence rate was 12.9% (n = 52), mostly detected in the first three years (88.4%). The pattern of recurrence was associated with the site of the primary tumor (p < 0.001). Twenty-one patients underwent curative resection. Factors associated with non-resectable recurrence were aged >= 70 years (p = 0.022), disease location in the colon (p = 0.033) and cancer antigen-19-9-9 elevation (p = 0.024). The overall rate of cancer-specific mortality was 2.2% (n = 9). DISCUSSION: The association between colon cancer and non-resectable recurrence is explained by the higher rate of disseminated disease in these patients. Cancer antigen-19-9 added no benefit to the surveillance program. CONCLUSION: This intensive real world postoperative surveillance program allowed performing curative surgery to 40.3% of patients with recurrence. PMID- 29025531 TI - [Endocrinology in Portugal - Census 2016. Board of the Portuguese College of Endocrinology and Nutrition of the Portuguese Medical Association]. AB - INTRODUCTION: On September 2016, the Board of the College of Endocrinology and Nutrition of the Portuguese Medical Association carried out a national survey, about all Endocrinology, Diabetes and Metabolism Departments of the public hospitals included in the Portuguese National Health Service and a simplified version of this survey was sent to all endocrinologists working in Portugal and registered with the Portuguese Medical Association. MATERIAL AND METHODS: Data related to organizational and human resources were collected, reporting the situation by the end of year 2015. The census registered 107 individuals and 27 Departments. RESULTS: The ratio of endocrinologists-population was 1.4, much lower than in the other European countries (varies between 2 to 4), resulting in alarming shortages of services in some areas of Portugal and in worse quality indicators. DISCUSSION: These data suggest that actions should be taken to increase the number of endocrinologists and departments in the country. CONCLUSION: In recent years, the number of residents has significantly increased, which will make it possible to correct this situation. PMID- 29025532 TI - Conflict of Interest Disclosure in a Top-Tier Portuguese Medical Journal. AB - INTRODUCTION: Scientific medical publications are considered to be a source of unbiased and independent information. Authors are required to disclose relationships with the pharmaceutical industry for transparency purposes. The aim of this work was to assess conflict of interest disclosure in a Portuguese top tier medical journal by comparing authors' self-reported conflicts of interest with payments listed in the official database of Portuguese Ministry of Health. MATERIAL AND METHODS: All articles published in the Portuguese Journal of Cardiology from December 2015 to May 2016 were reviewed. Articles based on clinical images, with authors affiliated to foreign institutions, editorials, letters to the editor, or submitted before January 1st 2015 were excluded. Authors were categorized on concordance between self-reported disclosures and payments listed in the database. Authors who authored multiple articles were counted as new authors, since each paper offered a new opportunity for financial disclosure. RESULTS: Of the 155 authors surveyed, 82 (53%) were in perfect concordance with the sunshine database, while 73 authors (47%) had one or more undisclosed payments. Undisclosed payments totaled over ? 210 000. Four (17%) articles mentioned a conflict of interest, 24 articles (96%) had at least one author with undisclosed payments. DISCUSSION: None of the payments listed in the database was acknowledged in self-reported conflicts of interest. This might indicate that authors do not consider their financial relationships with the industry to be relevant. CONCLUSION: The lack of concordance between self reported conflicts of interest and payments found in the database raises concerns about incomplete disclosure. PMID- 29025533 TI - Negative betahCG and Molar Pregnancy: The Hook Effect. AB - Molar pregnancy, included in gestational trophoblastic disease, is a benign pathology with ability to metastasize, usually occurring with excessively high betahCG levels. Clinical scenario is usually a woman in extremes of reproductive age presenting with amenorrhoea, pain and vaginal blood loss; signs derived from high betahCG levels may be present (hyperthyroidism, hyperemesis). Diagnosis is based on a positive pregnancy test - usually a qualitative urinary test. The limitation of this test results from its inability to become positive in presence of markedly high levels of betahCG, saturating the antigens used - known as the 'hook effect'. With the widespread use of gynaecological ultrasound cases of molar pregnancy have been diagnosed in timely fashion. We describe a case referred as a degenerating fibroid, with a negative urinary pregnancy test. Transvaginal ultrasound was highly suggestive of molar pregnancy, which was confirmed with a quantitative betahCG test, allowing for timely treatment. The importance of a high index of suspicion for this pathology is tremendous to avoid the devastating consequences of a delayed diagnosis. PMID- 29025534 TI - [Endovascular Treatment of a Gastroduodenal Artery Pseudoaneurysm Rupture after a Car Accident]. AB - The authors present a case of a 39-year-old man with alcoholic chronic pancreatitis that was admitted in the emergency department after a car accident, complaining of abdominal pain and looking pale. The patient was hemodinamically unstable, requiring blood transfusions. He underwent computed tomography angiogram of the abdomen and pelvis, showing a pseudoaneurysm of the gastroduodenal artery and a hemoperitoneum. He was referred to our interventional radiology unit and submitted to endovascular treatment, consisting of 'backdoor' and 'frontdoor' embolization of the gastroduodenal artery and pseudoaneurysm neck with coils, with total exclusion in control angiography. With this case description we intend to highlight the rarity of the pseudoaneurysm rupture of the gastroduodenal artery and to emphasize the importance of an interventional radiology response that had a fundamental role in the endovascular treatment, in an emergency context. PMID- 29025535 TI - Umbilical Cord Hemangioma with Pseudocyst: An Exceptional Finding. PMID- 29025536 TI - Foreign Bodies in Pediatrics: A Case to Say "Hello Kitty". PMID- 29025538 TI - Letter to the Editor: Maternally Inherited Diabetes and Deafness is Not Only Biorgan but Multiorgan. PMID- 29025537 TI - Letter to the Editor: Medication-Overuse Headache is Common in Portuguese Migraineurs. PMID- 29025540 TI - Anatomy and Physiology of the Pericardium. AB - The pericardium consists of a visceral mesothelial monolayer (epicardium) that reflects over the great vessels and joins an outer, relatively inelastic fibrous parietal layer of organized collagen and elastin fibers, between which is a potential space that normally contains up to 50 mL of plasma filtrate. Although not essential for life, the pericardium serves important albeit subtle functions in the euvolemic healthy individual that become increasingly important in hypervolemic states and conditions in which the heart enlarges acutely. The pericardial functions can be divided into the mechanical, reflex, membranous, metabolic, ligamentous. PMID- 29025539 TI - Pericardial Effusion and Compressive Disorders of the Heart: Influence of New Technology on Unraveling its Pathophysiology and Hemodynamics. AB - Constrictive pericarditis and cardiac tamponade cause severe diastolic dysfunction, but do not depress systolic function until the agonal state has been reached. Multimodality cardiovascular imaging has brought the nuances of pericardial disease to the domain of the practicing cardiologist. This introduction is a revised article originally written by the late Dr Shabetai for a pericardial diseases textbook which was not published. He was the editor of previous Pericardial Diseases issue for Cardiology Clinics in the 1980s, it is most appropriate to begin our issue with his insights. The remaining articles describe advances in diagnosis and management, focusing on clinically important aspects of pericardial diseases. PMID- 29025541 TI - Imaging of the Pericardium: A Multimodality Cardiovascular Imaging Update. AB - Pericardial diseases represent diverse conditions, ranging from painful inflammatory states, such as acute pericarditis, to life-threatening tamponade and chronic heart failure due to constrictive pericarditis. Multimodality cardiovascular imaging plays important roles in diagnosis and management of pericardial conditions. This review provides a clinical update on multimodality cardiovascular imaging of the pericardium, incorporating echocardiography, multidetector computed tomography, and cardiac magnetic resonance imaging, focusing on guiding clinicians about when each cardiac imaging modality should be used in each relevant pericardial condition. PMID- 29025542 TI - Acute and Recurrent Pericarditis. AB - Acute and recurrent pericarditis is the most common pericardial syndrome encountered in clinical practice either as an isolated process or as part of a systemic disease. The diagnosis is based on clinical evaluation, electrocardiogram, and echocardiography. The empiric therapy is based on nonsteroidal anti-inflammatory drugs plus colchicine as first choice, resorting to corticosteroids for specific indications (eg, systemic inflammatory disease on corticosteroids, pregnancy, renal failure, concomitant oral anticoagulants), for contraindications or failure of the first-line therapy. The most common complication is recurrence, occurring in up to 30% of cases after a first episode of pericarditis. PMID- 29025543 TI - Pericardial Effusion. AB - The normal pericardial sac contains up to 50 mL of fluid, which consists of a plasma ultrafiltrate. Anything greater constitutes a pathologic effusion. The curvilinear pressure-volume relationship of the pericardial sac dictates hemodynamic consequences of a pericardial effusion and is responsible for rapidly accumulating fluid that causes cardiac tamponade. A variety of diseases and complications cause pericardial effusion. The most common are idiopathic pericarditis, cancer, connective tissue disorders, and hemorrhage. Management of pericardial effusion is dictated by whether tamponade is present or threatened. If it is, urgent/emergent pericardiocentesis is indicated. If not, a systematic approach to diagnosis and management should be undertaken. PMID- 29025544 TI - Cardiac Tamponade. AB - Cardiac tamponade is caused by an abnormal increase in fluid accumulation in the pericardial sac, which, by raising intracardiac pressures, impedes normal cardiac filling and reduces cardiac output, sometimes dramatically so. This article outlines the pathophysiology, clinical features, and treatment of this important clinical condition highlighting the important role played by echocardiography in diagnosis and management. PMID- 29025545 TI - Constrictive Pericarditis. AB - Constrictive pericarditis is a potentially treatable cause of diastolic heart failure that arises because a diseased, inelastic pericardium restricts ventricular diastolic expansion. Affected patients present with heart failure with predominant right-sided symptoms and signs. The key to diagnosis is identification of the unique hemodynamic properties associated with constriction: dissociation of intrathoracic and intracardiac pressures and enhanced ventricular interaction. Comprehensive echocardiography with Doppler imaging is useful, but invasive hemodynamic assessment and cross-sectional imaging may be required for confirmation. Cardiac MRI provides an opportunity to evaluate for pericardial inflammation. Most cases of chronic constriction are progressive and life limiting, and require surgical pericardiectomy. PMID- 29025546 TI - Effusive-Constrictive Pericarditis. AB - Effusive-constrictive pericarditis (ECP) corresponds to the coexistence of a hemodynamically significant pericardial effusion and decreased pericardial compliance. The hallmark of ECP is the persistence of elevated right atrial pressure postpericardiocentesis. The prevalence of ECP seems higher in tuberculous pericarditis and lower in idiopathic cases. The diagnosis of ECP is traditionally based on invasive hemodynamics but the presence of echocardiographic features of constrictive pericarditis post-pericardiocentesisis can also identify ECP. Data on the prognosis and optimal treatment of ECP are still limited. Anti-inflammatory agents should be the first line of treatment. Pericardiectomy should be reserved for refractory cases. PMID- 29025547 TI - Contemporary Techniques of Pericardiectomy for Pericardial Disease. AB - Pericardiectomy is a potentially curative treatment for constrictive pericarditis. We use a median sternotomy and believe that adequate resection involves removal of the diaphragmatic pericardium and the anterior pericardium. Late outcomes depend on severity of right-sided heart failure preoperatively, the etiology of constrictive pericarditis, and adequate pericardial resection. Late results are excellent in patients with idiopathic disease or those with pericarditis secondary to prior cardiac operations. However, survival is reduced in those with radiation-induced constrictive pericarditis, primarily owing to additional secondary effects of radiation on cardiac valves, epicardial coronary arteries, and ventricular myocardium where fibrosis may cause associated restrictive cardiomyopathy. PMID- 29025548 TI - Percutaneous Therapy in Pericardial Diseases. AB - Interventional procedures for pericardial diseases include pericardiocentesis, drainage of pericardial effusion, intrapericardial therapy, and percutaneous balloon pericardiotomy or percutaneous pericardiostomy. Echocardiographic and fluoroscopic guidance have greatly increased safety and feasibility. Several devices for pericardiocentesis have been tested (PerDucer, PeriAttacher, visual puncture systems, Grasper, Scissors, and Reverse slitter), mainly to facilitate access to the pericardium in the absence of effusion for epicardial ablations or left atrial appendage ligation. In selected patients with pericardial effusions that cannot be managed medically or with prolonged drainage, various medications can be applied intrapericardially to prevent further recurrences or induce sclerosis of the pericardial space. PMID- 29025549 TI - Neoplastic Pericardial Disease. AB - Pericardial tumors are rare lesions that include a range of neoplastic conditions that may arise within the pericardium or metastasize to involve it secondarily. Understanding the spectrum of lesions that are included in the differential diagnosis of a pericardial mass-lesion is critical to making timely, accurate diagnoses and getting the appropriate therapy should one be necessary. This review summarizes the radiologic and pathologic findings of the most commonly encountered of these entities. PMID- 29025550 TI - Congenital Abnormalities of the Pericardium. AB - Congenital abnormalities of the pericardium are a rare group of disorders that include congenital absence of the pericardium, pericardial cysts, and diverticula. These congenital defects result from alterations in the embryologic formation and structure of the pericardium. Although many cases are incidentally found, they can present as symptomatic, life-threatening disease. Owing to their rarity, many cases are inappropriately diagnosed. Alterations in the embryologic formation and structure may result in the formation of these congenital abnormalities. We review the presentation, diagnosis, and management of congenital absence of the pericardium, pericardial cysts, and diverticula. A summary of multimodality imaging features is provided. PMID- 29025551 TI - Tuberculous and Infectious Pericarditis. AB - Viral pericarditis is the most common cause of acute pericarditis and it is typically responsive to aspirin or nonsteroidal anti-inflammatory drugs. Tuberculous pericarditis is common in immunocompromised patients or in immunocompetent patients in endemic areas. The diagnosis of tuberculous pericarditis usually requires a multidisciplinary approach, and presumptive treatment should be started for people with suspected infections living in endemic areas. Antituberculous treatment along with corticosteroid therapy can reduce complications from constrictive pericarditis. Purulent pericarditis is fatal if untreated. Bacterial and fungal cultures from pericardial fluid and blood are essential to determine the best treatment. PMID- 29025555 TI - Prognosis in Myocarditis: Better Late Than (N)ever! PMID- 29025553 TI - Prognostic Value of Cardiac Magnetic Resonance Tissue Characterization in Risk Stratifying Patients With Suspected Myocarditis. AB - BACKGROUND: Diagnosing myocarditis is challenged by nonspecific clinical signs and symptoms and low accuracy of endomyocardial biopsy. Cardiac magnetic resonance imaging (CMR) provides both cardiac anatomy and tissue characterization in this setting, but the prognostic value of this method as a primary assessment tool in patients with suspected myocarditis remains limited. OBJECTIVES: This study sought to determine cardiac event-free survival of a consecutive cohort with suspected myocarditis with regard to CMR findings. METHODS: Six hundred seventy patients with suspected myocarditis underwent CMR including late gadolinium enhancement (LGE) parameters between 2002 and 2015 and were included and followed. We performed multivariable model for major adverse cardiovascular events (MACE) and determined the continuous net reclassification improvement by LGE markers. RESULTS: At a median follow-up of 4.7 years (interquartile range [IQR]: 2.3 to 7.3 years), 98 patients experienced a MACE. Two hundred ninety-four (44%) patients showed LGE presence, which was associated with a more than doubling risk of MACE (hazard ratio [HR]: 2.22; 95% confidence interval [CI]: 1.47 to 3.35; p < 0.001). Annualized MACE rates were 4.8% and 2.1% corresponding to LGE presence and absence, respectively (p < 0.001). In the multivariable model, LGE presence maintained significant association with MACE (HR: 1.72; 95% CI: 1.08 to 2.76; p = 0.023). The computed continuous net reclassification improvement was 0.39 (95% CI: 0.10 to 0.67) when LGE presence was added to the multivariable model for MACE. Regarding location and pattern, septal and midwall LGE showed strongest associations with MACE (HR: 2.55; 95% CI: 1.77 to 3.83 and HR: 2.39; 95% CI: 1.54 to 3.69, respectively; both p < 0.001). A patchy distribution portended to a near 3-fold increased hazard to MACE (HR: 2.93; 95% CI: 1.79 to 4.80; p < 0.001). LGE extent (per 10% increase) corresponded to a 79% increase in risk of MACE (HR: 1.79; 95% CI: 1.25 to 2.57; p = 0.002). A normal CMR study corresponded to low annual MACE and death rates of 0.8% and 0.3%, respectively. CONCLUSIONS: CMR tissue characterization provides effective risk stratification in patients with suspected myocarditis. PMID- 29025554 TI - Cardiac MR With Late Gadolinium Enhancement in Acute Myocarditis With Preserved Systolic Function: ITAMY Study. AB - BACKGROUND: The prognostic role of cardiac magnetic resonance (CMR) and late gadolinium enhancement (LGE) has not been clarified in acute myocarditis (AM) with preserved left ventricular (LV) ejection fraction (EF). OBJECTIVES: This study sought to evaluate the role of CMR and LGE in the prognosis of AM with preserved LVEF. METHODS: This study analyzed data from ITAMY (ITalian multicenter study on Acute MYocarditis) and evaluated CMR results from 386 patients (299 male; mean age 35 +/- 15 years) with AM and preserved LVEF. Clinical follow-up was performed for a median of 1,572 days. A clinical combined endpoint of cardiac death, appropriate implantable cardioverter-defibrillator firing, resuscitated cardiac arrest, and hospitalization for heart failure was used. RESULTS: Among the 374 patients with suitable images, LGE involved the subepicardial layer inferior and lateral wall in 154 patients (41%; IL group), the midwall layer of the anteroseptal wall in 135 patients (36%; AS [anteroseptal] group), and other segments in 59 patients (16%; other-LGE group), and it was absent in 26 patients (no-LGE group). The AS group had a greater extent of LGE and a higher LV end diastolic volume index than other groups, but levels of inflammatory markers were lower than in the other groups. Kaplan-Meier curve analysis indicated that the AS group had a worse prognosis than the other groups (p < 0.0001). Finally, in multivariable analysis, AS LGE was the best independent CMR predictor of the combined endpoint (odds ratio: 2.73; 95% confidence interval: 1.2 to 5.9; p = 0.01). CONCLUSIONS: In patients with AM and preserved LVEF, LGE in the midwall layer of the AS myocardial segment is associated with a worse prognosis than other patterns of presentation. PMID- 29025557 TI - Brugada Syndrome: Lessons in Risk Tolerance, Communication, and Education? PMID- 29025556 TI - Patients With Brugada Syndrome and Implanted Cardioverter-Defibrillators: Long Term Follow-Up. AB - BACKGROUND: Implantable cardioverter-defibrillator (ICD) indications for primary prevention in Brugada syndrome (BrS) are still debated. OBJECTIVES: The authors investigated the long-term outcome after ICD implantation in a large cohort of BrS patients. METHODS: Of a total of 370 patients with BrS in follow-up (age 43 +/- 14 years; 74% male), 104 patients (28.1%) were treated with ICDs. The authors analyzed the long-term incidence of shocks and complications. RESULTS: An ICD was implanted for secondary prevention in 10 patients (9.6%) and for primary prevention in 94 patients (90.4%). After a follow-up of 9.3 +/- 5.1 years, 21 patients (20.2%) experienced a total of 81 appropriate shocks (incidence rate 2.2 per 100 person-years). The rate of appropriate shocks was higher in secondary prevention patients (p < 0.01). However, 4 of the 45 asymptomatic patients (8.9%) experienced appropriate ICD therapy, all with a spontaneous type 1 electrocardiogram and inducible ventricular arrhythmias. In the multivariable analysis, type 1 electrocardiogram with syncope (hazard ratio: 4.96; 95% confidence interval: 1.87 to 13.14; p < 0.01) and secondary prevention indication (hazard ratio: 6.85; 95% confidence interval: 2.29 to 20.50; p < 0.01) were significant predictors of appropriate therapy. Nine patients (8.7%) experienced 37 inappropriate shocks (incidence rate 0.9 per 100 person-years). Twenty-one patients (20.2%) had other ICD-related complications (incidence rate 1.4 per 100 person-years). Three patients (2.9%) died (1 electrical storm and 2 noncardiovascular deaths). CONCLUSIONS: ICD therapy is an effective therapy in high-risk patients with BrS. However, it is also associated with a significant risk of device-related complications. Special care during ICD implantation, adequate device programming, and regular follow-up may allow reducing the number of adverse events. PMID- 29025559 TI - The Role of Glycated Proteins on Cardiovascular Diabetic Complications: New Findings. PMID- 29025558 TI - Glycated Apolipoprotein A-IV Induces Atherogenesis in Patients With CAD in Type 2 Diabetes. AB - BACKGROUND: Nonenzymatic glycation of apolipoproteins plays a role in the pathogenesis of the vascular complications of diabetes. OBJECTIVES: This study investigated whether apolipoprotein (apo) A-IV was glycated in patients with type 2 diabetes mellitus (T2DM) and whether apoA-IV glycation was related to coronary artery disease (CAD). The study also determined the biological effects of glycated apoA-IV. METHODS: The authors consecutively enrolled 204 patients with T2DM without CAD (Group I), 515 patients with T2DM with CAD (Group II), and 176 healthy subjects (control group) in this study. ApoA-IV was precipitated from ultracentrifugally isolated high-density lipoprotein, and its glycation level was determined based on Western blotting densitometry (relative intensity of apoA-IV glycation). ApoA-IV NE-(carboxylmethyl) lysine (CML) modification sites were identified by mass spectrometry in 37 control subjects, 63 patients in Group I, and 138 patients in Group II. Saline or glycated apoA-IV (g-apoA-IV) generated by glyoxal culture was injected into apoE-/- mice to evaluate atherogenesis, and was also used for the cell experiments. RESULTS: The relative intensity and the abundance of apoA-IV glycation were associated with the presence and severity of CAD in patients with T2DM (all p < 0.05). The experiments showed that g-apoA-IV induced proinflammatory reactions in vitro and promoted atherogenesis in apoE-/- mice through the nuclear receptor NR4A3. G-apoA-IV with mutations (K-A) at high frequency glycation sites exhibited more weakened proinflammatory and atherogenic effects than did g-apoA-IV both in vitro and in vivo. CONCLUSIONS: ApoA-IV glycation is associated with CAD severity in patients with T2DM, and g-apoA-IV induces atherogenesis through NR4A3 in apoE-/- mice. PMID- 29025560 TI - Obesity and Atrial Fibrillation Prevalence, Pathogenesis, and Prognosis: Effects of Weight Loss and Exercise. AB - Both obesity and atrial fibrillation (AF) are increasing in epidemic proportions, and both increase the prevalence of cardiovascular disease events. Obesity has adverse effects on cardiovascular hemodynamics and cardiac structure and function, and increases the prevalence of AF, partly related to electroanatomic remodeling in obese patients. However, numerous studies, including in AF, have demonstrated an obesity paradox, where overweight and obese patients with these disorders have a better prognosis than do leaner patients with the same degree of severity of cardiovascular disease/AF. In this paper, the authors discuss special issues regarding AF in obesity, as well as the evidence that despite the presence of an obesity paradox, there are benefits of weight loss, physical activity/exercise training, and increases in cardiorespiratory fitness on the prognosis of obese patients with AF. PMID- 29025561 TI - Arterial Thrombus Stability: Does It Matter and Can We Detect It? AB - The spontaneous lysis of a coronary thrombus is a natural protective mechanism against lasting occlusion and downstream infarction. Thrombus stability is thus a direct determinant of clinical outcome. Compared with the extensive study of the crucial role of platelets, coagulation, and flow in arterial thrombosis, little attention has been paid to factors affecting thrombus stability, despite evidence linking impaired spontaneous fibrinolytic activity with acute coronary events. We summarize experimental evidence for the importance of thrombus stability and highlight the need for physiologically relevant tests to assess spontaneous disintegration/fibrinolysis of platelet-rich thrombi under arterial flow conditions, review techniques to assess thrombus stability in vitro, and describe novel imaging techniques to characterize thrombosis in vivo. Such techniques may allow tailoring of pharmacotherapy to potentiate thrombus instability, through fragmentation of platelet thrombi and/or enhanced endogenous fibrinolysis, to reduce infarct size. PMID- 29025562 TI - Low-Dose Ticagrelor Versus Clopidogrel in Patients With Prior Myocardial Infarction. PMID- 29025563 TI - Prediction of Mid-Term Outcomes in Adult Obstructive Hypertrophic Cardiomyopathy After Surgical Ventricular Septum Myectomy. PMID- 29025564 TI - Pre-Implant Outcome Predictors in Patients With Refractory Cardiogenic Shock Supported With VA-ECMO. PMID- 29025565 TI - The Benefit of Cardiac Resynchronization Therapy Is Not Hindered by the Number of Comorbidities. PMID- 29025566 TI - Reply: The Benefit of Cardiac Resynchronization Therapy Is Not Hindered by the Number of Comorbidities. PMID- 29025567 TI - Cardioprotective Properties of ANGPTL3 Deficiency. PMID- 29025568 TI - Reply: Loss-of-Function Mutations to Estimate Pharmacological ANGPTL3 Inhibition. PMID- 29025570 TI - Correction. PMID- 29025569 TI - Concerns on the Genetic or Therapeutic Antagonism of ANGPTL3. PMID- 29025571 TI - Correction. PMID- 29025572 TI - The Nitric Oxide Pathway-A Potential Target for Precision Medicine in Pulmonary Arterial Hypertension. PMID- 29025573 TI - The Nitric Oxide Pathway in Pulmonary Vascular Disease. AB - Nitric oxide is an endogenous pulmonary vasodilator that is synthesized from L arginine in pulmonary vascular endothelial cells by nitric oxide synthase and diffuses to adjacent vascular smooth muscle cells where it activates soluble guanylyl cyclase. This enzyme converts GTP to cGMP which activates cGMP dependent protein kinase leading to a series of events that decrease intracellular calcium and reduce vascular muscle tone. Nitric oxide is an important mediator of pulmonary vascular tone and vascular remodeling. A number of studies suggest that the bioavailability of nitric oxide is reduced in patients with pulmonary vascular disease and that augmentation of the nitric oxide/cGMP pathway may be an effective strategy for treatment. Several medications that target nitric oxide/cGMP signaling are now available for the treatment of pulmonary hypertension. This review explores the history of nitiric oxide research, describes the major NO synthetic and signaling pathways and discusses a variety of abnormalities in NO production and metabolism that may contribute to the pathophysiology of pulmonary vascular disease. A summary of the clinical use of presently available medications that target nitric oxide/cGMP signaling in the treatment of pulmonary hypertension is also presented. PMID- 29025574 TI - Genetics of NO Deficiency. AB - The nitric oxide-cyclic guanosine monophosphate (NO-cGMP) pathway plays a key role in regulating cardiovascular homeostasis, and genetic variants allocated to NO-cGMP pathway genes, leading to NO-cGMP deficiency, may influence the prevalence or course of cardiovascular disease. NO-cGMP deficiency can be caused by nitric oxide synthase substrate deficiency, substrate competition, defects, or uncoupling; endogenous inhibitors of nitric oxide synthase; decreased cGMP production; or increased cGMP degradation. This review presents evidence supporting the role of NO-cGMP deficiency in cardiovascular disease, including findings from genetic association studies for particular polymorphisms, haplotypes, and racial disparities. NO-cGMP pathway components including arginases, guanosine-5'-triphosphate cyclohydrolase 1, nitric oxide synthase, dimethylarginine dimethylaminohydrolases, soluble guanylyl cyclase, protein kinase G, phosphodiesterase 5, and natriuretic peptides will be discussed. PMID- 29025575 TI - Biomarkers in Pulmonary Vascular Disease: Gauging Response to Therapy. AB - Biomarkers are increasingly being investigated in the treatment of pulmonary vascular disease. In particular, the signaling pathways targeted by therapies for pulmonary arterial hypertension provide biomarkers that potentially can be used to guide therapy and to assess clinical response as an alternative to invasive procedures such as right-sided cardiac catheterization. Moreover, the growing use of combination therapy for both the initial and subsequent treatment of pulmonary arterial hypertension highlights the need for biomarkers in this treatment approach. Currently approved therapies for pulmonary arterial hypertension target 3 major signaling pathways: the nitric oxide-soluble guanylate cyclase-cyclic guanosine monophosphate pathway, the endothelin pathway, and the prostacyclin pathway. Although the main biomarker used in practice and evaluated in clinical trials is N-terminal pro-brain natriuretic peptide, other putative biomarkers include the endogenous nitric oxide (NO) synthase inhibitor asymmetric dimethylarginine, NO metabolites including S-nitrosothiols and nitrite, exhaled NO, endothelins, cyclic guanosine monophosphate, cyclic adenosine monophosphate, and atrial natriuretic peptide. This review describes accessible biomarkers, related to the actual molecules targeted by current therapies, for measuring and predicting response to the individual pulmonary arterial hypertension treatment classes as well as combination therapy. PMID- 29025577 TI - Right Ventricle Dysfunction in Cardiomyopathy: To Measure Is to Know. PMID- 29025576 TI - The Prevalence, Correlates, and Impact on Cardiac Mortality of Right Ventricular Dysfunction in Nonischemic Cardiomyopathy. AB - OBJECTIVES: This study sought to determine the prevalence, correlates, and impact on cardiac mortality of right ventricular (RV) dysfunction in nonischemic cardiomyopathy. BACKGROUND: Current heart failure guidelines place little emphasis on RV assessment due to limited available data on determinants of RV function, mechanisms leading to its failure, and relation to outcomes. METHODS: We prospectively studied 423 patients with cardiac magnetic resonance (CMR). The pre-specified study endpoint was cardiac mortality. In 100 patients, right heart catheterization was performed as clinically indicated. RESULTS: During a median follow-up time of 6.2 years (interquartile range: 2.9 to 7.6 years), 101 patients (24%) died of cardiac causes. CMR right ventricular ejection fraction (RVEF) was a strong independent predictor of cardiac mortality after adjustment for age, heart failure-functional class, blood pressure, heart rate, serum sodium, serum creatinine, myocardial scar, and left ventricular ejection fraction (LVEF). Patients with the lowest quintile of RVEF had a nearly 5-fold higher cardiac mortality risk than did patients with the highest quintile (hazard ratio: 4.68; 95% confidence interval [CI]: 2.43 to 9.02; p < 0.0001). RVEF was positively correlated with LVEF (r = 0.60; p < 0.0001), and inversely correlated with right atrial pressure (r = -0.32; p = 0.001), pulmonary artery pressure (r = -0.34; p = 0.0005), transpulmonary gradient (r = -0.28; p = 0.006) but not with pulmonary wedge pressure (r = -0.15; p = 0.13). In multivariable logistic regression analysis of CMR, clinical, and hemodynamic data the strongest predictors of right ventricular dysfunction were LVEF (odds ratio [OR]: 0.85; 95% CI: 0.78 to 0.92; p < 0.0001), transpulmonary gradient (OR: 1.20; 95% CI: 1.09 to 1.32; p = 0.0003), and systolic blood pressure (OR: 0.97; 95% CI: 0.94 to 0.99; p = 0.02). CONCLUSIONS: CMR assessment of RVEF provides important prognostic information independent of established risk factors and LVEF in heart failure patients with nonischemic cardiomyopathy. Right ventricular dysfunction is strongly associated with both indices of intrinsic myocardial contractility and increased afterload from pulmonary vascular dysfunction. PMID- 29025578 TI - Full Circle on Pulmonary Flow Dynamics in Pulmonary Arterial Hypertension. PMID- 29025579 TI - Abnormal Motion Patterns of the Interventricular Septum. PMID- 29025580 TI - The Right Ventricle: Unforgettable With Imaging. PMID- 29025581 TI - Clonal chromosomal aberrations in Philadelphia negative cells such as monosomy 7 and trisomy 8 may persist for years with no impact on the long term outcome in patients with chronic myeloid leukemia. AB - The appearance of clonal chromosomal aberrations in Philadelphia negative cells (CCA/Ph-) during the treatment of chronic myeloid leukemia (CML) was recently confirmed. Importance of these findings has not been clearly defined. We present data on the time of appearance, persistence, size of the CCA/Ph- clone in terms of drugs used and hematological, cytogenetic and molecular response rates. The focus was on the peripheral blood cytopenias and myelodysplastic changes in the bone marrow microscopic evaluation. In 5 out of 155 (3,2%) CML patients, the persistent presence (up to nine years) of CCA/Ph- was found (monosomy 7 and trisomy 8 in unrelated clones in two patients treated with tyrosine kinase inhibitors; trisomy 8 in two patients on imatinib; trisomy 21 in one patient on interferon alfa treatment). Aberrations were present in median 24% Ph- cells in 3 15 subsequent analyses at different cytogenetic and molecular response time points. No evident myelodysplastic changes nor transformation to MDS/AML occurred in patients with CCA/Ph-. All the patients achieved major molecular response (MMR). It seems that CCA/Ph- presence does not affect the long term outcome in patients with chronic myeloid leukemia. Further complex monitoring of the CML patients with CCA/Ph- is still needed. PMID- 29025582 TI - A novel TRIP11-FLT3 fusion in a patient with a myeloid/lymphoid neoplasm with eosinophilia. AB - FLT3 fusions are associated with myeloid and lymphoid neoplasms with eosinophilia. We describe a patient presenting with clinicopathologic features of both chronic eosinophilic leukemia, not otherwise specified (CEL, NOS) and systemic mastocytosis (SM). The bone marrow demonstrated a myeloproliferative neoplasm with eosinophilia and aggregates of atypical mast cells. Cytogenetic analysis revealed a t(13;14)(q12;q32), which was subsequently molecularly characterized as a novel TRIP11-FLT3 rearrangement. A KIT D816V mutation was also identified. The patient rapidly transformed to T-lymphoblastic leukemia/lymphoma and expired shortly after diagnosis. This is the fifth FLT3 fusion gene described in the literature; the presence of both myeloid and lymphoid neoplasms implicates involvement of an early hematopoietic progenitor by rearranged FLT3. We suggest that leukemias and lymphomas with FLT3 fusion genes exhibit similar clinicopathologic features to, and should be included in, the WHO category of "Myeloid and lymphoid neoplasms with eosinophilia and abnormalities of PDGFRA, PDGFRB, or FGFR1, or with PCM1-JAK2." PMID- 29025583 TI - A rare case of pediatric lipoma with t(9;12)(p22;q14) and evidence of HMGA2-NFIB gene fusion. AB - Lipoma is a benign tumor, typically of adulthood, with characteristic cytogenetic findings, including rearrangement of 12q13-15; these rearrangements often lead to the fusion of the HMGA2 gene at this locus to the transcriptional regulatory domain of its fusion partner, resulting in neomorphic activity that presumably facilitates the neoplastic process. Herein, we report a rare case of pediatric lipoma with t(9;12)(p22;q14) and evidence of HMGA2-NFIB gene fusion in a 9 year old boy. This case provides further evidence of the link between NFIB rearrangement and early-onset, deep-seated lipomatous tumors. PMID- 29025584 TI - Regulatory mechanisms of long noncoding RNAs on gene expression in cancers. AB - Long non-coding RNAs (lncRNAs) are a heterogeneous class of RNAs that are non protein coding transcripts longer than 200 nucleotides. In this review, we introduce the mechanisms by which lncRNAs regulate gene expression in four parts, epigenetic regulation (genetic imprinting and chromatin remodeling), transcriptional regulation (molecular decoy), post-transcriptional regulation (splicing and mRNA decay), and translational regulation. H19, Xist, and others are involved in genomic imprinting. HOTAIR and ANRIL function in chromatin remodeling. GAS5 is degraded through an RNA decay pathway. NEAT1 and MALAT1 function not only in the regulation of transcription but also in splicing. PMID- 29025586 TI - Prognostic classification of MDS is improved by the inclusion of FISH panel testing with conventional cytogenetics. AB - Cytogenetics is a critical independent prognostic factor in myelodysplastic syndromes (MDS). Conventional cytogenetics (CC) and Fluorescence in situ hybridization (FISH) Panel Testing are extensively used for the prognostic stratification of MDS, although the FISH test is not yet a bona fide component of the International Prognostic Scoring System (IPSS). The present study compares the utility of CC and FISH to detect chromosomal anomalies and in prognostic categorization. GTG-Banding and FISH Panel Testing specifically for -5/-5q, -7/ 7q, +8 and -20q was performed on whole blood or bone marrow samples from 136 patients with MDS. Chromosomal anomalies were found in 40 cases by CC, including three novel translocations. FISH identified at least one anomaly in 54/136 (39.7%) cases. More than one anomaly was found in 18/54 (33.3%) cases, therefore, overall FISH identified 75 anomalies of which 32 (42.6%) were undetected by CC. FISH provided additional information in cases with CC failure and in cases with a normal karyotype. Further, in ten cases with an abnormal karyotype, FISH could identify additional anomalies, increasing the number of abnormalities per patient. Although CC is the gold standard in the cytogenetic profiling of MDS, FISH has proven to be an asset in identifying additional abnormalities. The number of anomalies per patient can predict the prognosis in MDS and hence, FISH contributed towards prognostic re-categorization. The FISH Panel testing should be used as an adjunct to CC, irrespective of the adequacy of the number of metaphases in CC, as it improves the prognostic classification of MDS. PMID- 29025585 TI - Genetic Gastric Cancer Susceptibility in the International Clinical Cancer Genomics Community Research Network. AB - Few susceptibility genes for gastric cancer have been identified. We sought to identify germline susceptibility genes from participants with gastric cancer from an international hereditary cancer research network. Adults with gastric cancer of any histology, and with a germline DNA sample (n = 51), were retrospectively selected. For those without previously identified germline mutations (n = 43), sequencing was performed for 706 candidate genes. Twenty pathogenic or likely pathogenic variants were identified among 18 participants. Eight of the 18 participants had previous positive clinical testing, including six with CDH1 pathogenic or likely pathogenic variants, and two with pathogenic MSH2 and TP53 variants. Of the remaining 10, six were in BRCA1 DNA damage response pathway genes (ATM, ATR, BRCA2, BRIP1, FANCC, TP53), other variants were identified in CTNNA1, FLCN, SBDS, and GNAS. Participants identified with pathogenic or likely pathogenic variants were younger at gastric cancer diagnosis than those without, 39.1 versus 48.0 years, and over 50% had a close family member with gastric cancer (p-values < 0.0001). In conclusion, many participants were identified with mutations in clinically-actionable genes. Age of onset and family history of gastric cancer were mutation status predictors. Our findings support multigene panels in identifying gastric cancer predisposition. PMID- 29025587 TI - Addition of chromosomal microarray and next generation sequencing to FISH and classical cytogenetics enhances genomic profiling of myeloid malignancies. AB - Comprehensive genetic profiling is increasingly important for the clinical workup of hematologic tumors, as specific alterations are now linked to diagnostic characterization, prognostic stratification and therapy selection. To characterize relevant genetic and genomic alterations in myeloid malignancies maximally, we utilized a comprehensive strategy spanning fluorescence in situ hybridization (FISH), classical karyotyping, Chromosomal Microarray (CMA) for detection of copy number variants (CNVs) and Next generation Sequencing (NGS) analysis. In our cohort of 569 patients spanning the myeloid spectrum, NGS and CMA testing frequently identified mutations and copy number changes in the majority of genes with important clinical associations, such as TP53, TET2, RUNX1, SRSF2, APC and ATM. Most importantly, NGS and CMA uncovered medically actionable aberrations in 75.6% of cases normal by FISH/cytogenetics testing. NGS identified mutations in 65.5% of samples normal by CMA, cytogenetics and FISH, whereas CNVs were detected in 10.1% cases that were normal by all other methodologies. Finally, FISH or cytogenetics, or both, were abnormal in 14.1% of cases where NGS or CMA failed to detect any changes. Multiple mutations and CNVs were found to coexist, with potential implications for patient stratification. Thus, high throughput genomic tumor profiling through targeted DNA sequencing and CNV analysis complements conventional methods and leads to more frequent detection of actionable alterations. PMID- 29025588 TI - Trisomy 12 assessment by conventional fluorescence in-situ hybridization (FISH), FISH in suspension (FISH-IS) and laser scanning cytometry (LSC) in chronic lymphocytic leukemia. AB - Chronic lymphocytic leukemia (CLL) has an extremely heterogeneous clinical course, and prognostication is based on common genetic abnormalities which are detected by standard cytogenetic methods. However, current methods are restricted by the low number of cells able to be analyzed, resulting in the potential to miss clinically relevant sub-clonal populations of cells. A novel high throughput methodology called fluorescence in situ hybridization in suspension (FISH-IS) incorporates a flow cytometry-based imaging approach with automated analysis of thousands of cells. Here we have demonstrated that the FISH-IS technique is applicable to aneuploidy detection in CLL samples for a range of chromosomes using appropriate centromere probes. This method is able to accurately differentiate between monosomy, disomy and trisomy with a sensitivity of 1% in CLL. An analysis comparing conventional FISH, FISH-IS and laser scanning cytometry (LSC) is presented. PMID- 29025589 TI - Potential circulating miRNA signature for early detection of NSCLC. AB - Circulating microRNAs (c-miRNAs) are promising biomarkers for screening, early detection and prognosis of cancer. The purpose of this investigation was to identify a panel of c-miRNAs in plasma that could contribute to early detection of non-small cell lung cancer (NSCLC). We profiled the expression of 44 unique plasma miRNAs in training set of 34 NSCLC patients and 20 matched healthy individuals by miRCURY LNATM Universal RT microRNA PCR Panel and calculated dysregulation fold changes using the 2-DeltaDeltaCt equation. Selected plasma miRNAs were then validated by SYBR green q-RT PCR using an independent validation set of plasma samples from NSCLC patients (n: 72) and NC (n: 50). In the validation set, the receiver operating characteristic (ROC) curves were generated for four miRNAs. In the training set, 17 miRNAs were significantly up-regulated and nine were down-regulated in the plasma from NSCLC patients versus matched normal controls. Four miRNAs (miR-21, miR-328, miR-375 and miR-141) were selected for validating their diagnostic value in the testing set. ROC plot analysis showed that a high specificity (98%) and sensitivity (82.7%) in miR-141 in comparing early NSCLC patient and controls. So among these four plasma miRNAs only miR-141 could be promising biomarkers for early detection of NSCLC. In addition to, we found a significant positive correlation between stage and miR-21 expression level (95% CI: 0.687-0.863; p-value < 0.0001). Considering the accessibility and stability of circulating miRNAs, plasma miR-141 is a useful biomarker early detection of NSCLC as a supplement in future screening studies. PMID- 29025590 TI - Identification of pathogenic retrotransposon insertions in cancer predisposition genes. AB - Cancer risks have been previously reported for some retrotransposon element (RE) insertions; however, detection of these insertions is technically challenging and very few oncogenic RE insertions have been reported. Here we evaluate RE insertions identified during hereditary cancer genetic testing using a comprehensive testing strategy. Individuals who had single-syndrome or pan-cancer hereditary cancer genetic testing from February 2004 to March 2017 were included. RE insertions were identified using Sanger sequencing, Next Generation Sequencing, or multiplex quantitative PCR, and further characterized using targeted PCR and sequencing analysis. Personal cancer history, ancestry, and haplotype were evaluated. A total of 37 unique RE insertions were identified in 10 genes, affecting 211 individuals. BRCA2 accounted for 45.9% (17/37) of all unique RE insertions. Several RE insertions were detected with high frequency in populations of conserved ancestry wherein up to 100% of carriers shared a high degree of haplotype conservation, suggesting founder effects. Our comprehensive testing strategy resulted in a substantial increase in the number of reported oncogenic RE insertions, several of which may have possible founder effects. Collectively, these data show that the detection of RE insertions is an important component of hereditary cancer genetic testing and may be more prevalent than previously reported. PMID- 29025591 TI - Identification of a novel CSF3R-SPTAN1 fusion gene in an atypical chronic myeloid leukemia patient with t(1;9)(p34;q34) by RNA-Seq. AB - Membrane-proximal and truncated mutations of colony-stimulating factor 3 receptor (CSF3R) are frequently found in chronic neutrophilic leukemia (CNL) and atypical chronic myeloid leukemia (aCML). However, rearrangement involving CSF3R in hematological neoplasms has not been reported. Here, we report a case of a 21 year-old female diagnosed as aCML with t(1;9)(p34;q34) who presented a CSF3R rearrangement. First, RNA sequencing identified a novel fusion transcript involving exon 17 of CSF3R and exon 50 of non-erythrocytic-1-spectrin-alpha (SPTAN1). Subsequent reverse transcription-polymerase chain reaction (RT-PCR) and bidirectional Sanger sequencing confirmed the in-frame fusion. The breakpoint was located at the C-terminus of CSF3R, suggesting a pattern of truncation mutation of CSF3R. Unexpectedly, the patient failed to achieve a complete hematological response following the SRC kinase inhibitor dasatinib therapy, which has been reported to effectively inhibit truncated forms of CSF3R. The patient accepted allogeneic hematopoietic stem cell transplantation (HSCT) and currently remains in a good state. In conclusion, this report is the first to identify a fusion involving CSF3R and SPTAN1 in aCML with t(1;9)(p34;q34). PMID- 29025593 TI - Prognostic significance of recurrent additional chromosomal abnormalities in adult patients with Philadelphia chromosome-positive acute lymphoblastic leukemia. AB - In Philadelphia (Ph) chromosome-positive acute lymphoblastic leukemia (ALL), additional chromosomal abnormalities (ACAs) are frequently observed. We investigated the cytogenetic characteristics and prognostic significance of ACAs in Ph-positive ALL. We reviewed the clinical data and bone marrow cytogenetic findings of 122 adult Ph-positive ALL patients. The ACAs were examined for partial or whole chromosomal gains or losses, and structural aberrations. The overall survival (OS) and disease-free survival (DFS) of patients who received hematopoietic cell transplantation were compared between the isolated Ph group and ACA group. ACAs were present in 73.0% of all patients. The recurrent ACAs were extra Ph (24.7%), 9/9p loss (20.2%), and 7/7p loss (19.1%). Complex karyotype was found in 28.1% of patients in the ACA group. Younger patients (19 30 years) in the ACA group showed the highest frequency of extra Ph (54%) compared to other age groups. The OS in the ACA group was significantly shorter than in the isolated Ph group. The presence of an extra Ph chromosome or 9/9p loss was significantly associated with shorter OS and DFS, whereas 7/7p loss and complex karyotype were not associated with poorer prognosis. We suggest that subclassification of ACAs could be applied to prognostic investigation of Ph positive ALL. PMID- 29025592 TI - Significantly mutated genes and regulatory pathways in SCLC-a meta-analysis. AB - Small cell lung cancer (SCLC) accounts for approximately 15% of all lung cancers and demands effective targeted therapeutic strategies. In this meta-analysis study, we aim to identify significantly mutated genes and regulatory pathways to help us better understand the progression of SCLC and to identify potential biomarkers. Besides ranking genes based on their mutation frequencies, we sought to identify statistically significant mutations in SCLC with the MutSigCV software. Our analysis identified several genes with relatively low mutation frequency, including PTEN, as highly significant (p < 0.001), suggesting these genes may play an important role in the progression of SCLC. Our results also indicated mutations in genes involved in the axon guidance pathways likely play an important role in SCLC progression. In addition, we observed that the mutation rate was significantly higher in samples with RB1 gene mutated when compared to samples with wild type RB1, suggesting that RB1 status has significant impact on the mutation profile and disease progression in SCLC. PMID- 29025594 TI - Gene expression profiling, pathway analysis and subtype classification reveal molecular heterogeneity in hepatocellular carcinoma and suggest subtype specific therapeutic targets. AB - A very low 5-year survival rate among hepatocellular carcinoma (HCC) patients is mainly due to lack of early stage diagnosis, distant metastasis and high risk of postoperative recurrence. Hence ascertaining novel biomarkers for early diagnosis and patient specific therapeutics is crucial and urgent. Here, we have performed a comprehensive analysis of the expression data of 423 HCC patients (373 tumors and 50 controls) downloaded from The Cancer Genome Atlas (TCGA) followed by pathway enrichment by gene ontology annotations, subtype classification and overall survival analysis. The differential gene expression analysis using non parametric Wilcoxon test revealed a total of 479 up-regulated and 91 down regulated genes in HCC compared to controls. The list of top differentially expressed genes mainly consists of tumor/cancer associated genes, such as AFP, THBS4, LCN2, GPC3, NUF2, etc. The genes over-expressed in HCC were mainly associated with cell cycle pathways. In total, 59 kinases associated genes were found over-expressed in HCC, including TTK, MELK, BUB1, NEK2, BUB1B, AURKB, PLK1, CDK1, PKMYT1, PBK, etc. Overall four distinct HCC subtypes were predicted using consensus clustering method. Each subtype was unique in terms of gene expression, pathway enrichment and median survival. Conclusively, this study has exposed a number of interesting genes which can be exploited in future as potential markers of HCC, diagnostic as well as prognostic and subtype classification may guide for improved and specific therapy. PMID- 29025595 TI - First cloned human immortalized adipose derived mesenchymal stem-cell line with chimeric SS18-SSX1 gene (SS-iASC). AB - The SS18-SSX chimeric gene is unique to synovial sarcoma. Multiple model systems including mouse cell lines expressing SS18-SSX, and genetically engineered mouse models of synovial sarcoma have been developed to elucidate the role of the chimeric gene in synovial sarcomagenesis. Although several cell lines stably expressing human SS18-SSX exist, there is an ongoing need for cell culture models enabling researchers to investigate the molecular mechanism of SS18-SSX action in a relevant cellular context. Here we report the establishment of a novel SS18 SSX1-expressing cell line created from immortalized human adipose tissue-derived mesenchymal stem cells via lentiviral transduction of the chimeric gene. Our cell line, termed SS-iASC, has been characterized by karyotyping and cell line identification, and stable expression of SS18-SSX1 has been verified using real time PCR (RT-PCR), nested PCR, immunofluorescence, and immunoblotting. Focal cytokeratin positivity characteristic of synovial sarcoma but no beta-Catenin, Bcl-2 or cyclin D1 expression was observed in SS-iASC. The novel cell line expressing SS18-SSX1 on a human adipose-derived stromal cell background is expected to be helpful in addressing the question whether the chimeric gene alone is sufficient to trigger the formation of synovial sarcoma. PMID- 29025596 TI - RANK and EGFR in invasive breast carcinoma. AB - Breast cancer is the most common malignancy, affecting one in eight women in North America and Europe. The human epidermal growth factor receptor (EGFR) protein comprises a major determinant of normal development but also cancer. RANK receptor (Receptor Activator of Nuclear factor-kappaB) is a tumor necrosis superfamily member and a binding partner for RANKL, which was recently implicated in breast cancer initiation, progression and metastasis. Here we provide preliminary evidence of a possible interplay between RANK and EGFR signaling in breast cancer. TCGA (cancergenome.nih.gov) publicly available data for EGFR and TNFRSF11A (RANK) genes from breast cancer patients and breast cancer cell lines were retrieved and analyzed. RANK mRNA showed a statistically significant positive correlation (p <0.001) with the mRNA and protein expression of EGFR, but not with ERBB2/3/4. Further analyses of survival data of a group of breast cancer patients (n = 248) from TCGA, revealed an EGFRhi/RANKhi subpopulation that showed a statistically significant (p = 0.001) reduced overall survival when compared to EGFRlow/RANKlow group of patients. Finally, EGFR and RANK combinatorial in vitro analyses revealed a significant upregulation of AKT and ERK signaling after EGF stimulation in cell lines and also an increase of breast cancer cell invasiveness. PMID- 29025597 TI - Upregulation of vascular endothelial growth factor (VEGF), its role in progression and prognosis of non-small cell lung carcinoma. AB - Elevated VEGF mRNA (-DeltaCT) was significantly associated with adenocarcinoma histology (vs squamous) and advanced NSCLC clinical stages in a univariable analysis; however, this association did not remain significant in the multivariable analysis. Of interest, a Kaplan-Meier analysis showed that NSCLC patients with higher VEGF mRNA (-DeltaCT >=10) had a significantly poorer overall survival and shorter postoperative relapse time in adenocarcinoma and in stage III/IV than those with VEGF mRNA of -DeltaCT <10 (P < 0.001). The multivariable analysis confirmed that patients with higher VEGF mRNA levels, as well as with adenocarcinoma and advanced stages, were independent predictors of a poorer survival. However, only the histology of adenocarcinoma remained a significant prognostic factor of a shorter postoperative relapse in the multivariable model. Quantity of VEGF mRNA can be used as a prognosis factor to predict shorter overall survival in patients with NSCLC. PMID- 29025598 TI - Acute myeloid leukemia with t(14;21) involving RUNX1 and SYNE2: A novel favorable risk translocation? AB - In acute myeloid leukemia (AML), a translocation between chromosomes 8q22 and 21q22 leads to the RUNX1-RUNXT1 fusion gene which, in the absence of a concomitant KIT mutation, generally portends a more favorable prognosis. Translocations at 21q22, other than those involving 8q22, are uncommon, and the specific prognostic and therapeutic implications are accordingly limited by the small number of reported cases. In this report, we describe the case of a 67-year old gentleman who presented with AML harboring t(14;21)(q23;q22). Subsequent molecular analysis revealed mutations in RUNX1, ASXL1, and SF3B1, with translocation breakpoints identified within SYNE2 on chromosome 14 and RUNX1 on chromosome 21. The functional consequence of the DNA fusion between SYNE2 and RUNX1 is unclear. Nonetheless, despite several adverse risk factors associated with this patient's AML, he achieved a long-lasting remission with standard chemotherapy alone, potentially suggestive of a novel favorable-risk translocation in AML involving 21q22. PMID- 29025599 TI - Constitutional mosaicism of a de novo TP53 mutation in a patient with bilateral choroid plexus carcinoma. AB - Choroid plexus tumors (CPT) constitute 2%-5% of all pediatric brain tumors and include high grade choroid plexus carcinoma (CPC). About 40% of CPC patients harbor germline TP53 mutations, associated with diminished survival rates. However, the number of TP53 carriers might be underestimated due to suboptimal ability of Sanger sequencing to identify mosaicism. We describe an 18-month-old boy with ultra-rare, bilateral disseminated CPC and negative family history of cancer. Next generation sequencing (NGS) revealed constitutional mosaicism of de novo TP53 mutation, which was barely detectable by Sanger sequencing. This is the first description of a de novo TP53 mutation mosaicism in a patient with CPC. Up to now four cases of de novo TP53 mutations in CPC patients have been described but none of them were mosaic. Since TP53 mutation mosaicism may have an impact on management of patients and predisposition to other cancers, a reliable method of identification is important. Our results highlight the utility of high-throughput technologies in detection of potentially important genetic markers. PMID- 29025600 TI - A novel somatic JAK2 kinase-domain mutation in pediatric acute lymphoblastic leukemia with rapid on-treatment development of LOH. AB - We report a novel somatic mutation in the kinase domain of JAK2 (R938Q) in a high risk pediatric case of B-cell acute lymphoblastic leukemia (ALL). The patient developed on-therapy relapse at 12 months, and interestingly, the JAK2 locus acquired loss of heterozygosity during treatment resulting in 100% mutation load. Furthermore, we show that primary ALL mononuclear cells harboring the JAK2 R938Q mutation display reduced sensitivity to the JAK1/2 ATP-competitive inhibitor ruxolitinib in vitro, compared to ALL cells that carry a more common JAK2 pseudokinase domain mutation. Our findings are in line with previous reports that demonstrate that mutations within the kinase domain of JAK2 are associated with resistance to type I JAK inhibitors. Importantly, given the recent inclusion of ruxolitinib in trial protocols for children with JAK pathway alterations, we predict that inter-patient genetic variability may result in suboptimal responses to JAK inhibitor therapy in a subset of cases. The need for alternate targeted and/or combination therapies for patients who display inherent or developed resistance to JAK inhibitor therapy will be warranted, and we propose that kinase mutants less sensitive to type I JAK inhibitors may present a currently unexplored platform for investigation of improved therapies. PMID- 29025601 TI - A neoplasm with FIP1L1-PDGFRA fusion presenting as pediatric T-cell lymphoblastic leukemia/lymphoma without eosinophilia. AB - The 2016 World Health Organization (2016 WHO) classification of hematopoietic malignancies classifies neoplasms with a fusion between the FIP1L1 and PDGFRA genes in 4q12 into a group called "myeloid and lymphoid neoplasms with eosinophilia and abnormalities of PDGFRA, PDGFRB or FGFR1 or with PCM1-JAK2". Neoplasms characterized by this fusion are pluripotent stem cell disorders that can show both myeloid and lymphoid differentiation. They typically occur in adult patients and most are characterized by eosinophilia. We describe identification of a FIP1L1-PDGFRA fusion in a 13-year-old boy who presented with T-lymphoblastic leukemia/lymphoma without eosinophilia. Detection of FIP1L1-PDGFRA driven neoplasms at diagnosis is usually critical for proper treatment, since almost all reported cases responded to tyrosine kinase inhibitors. However, our patient's leukemia was refractory to standard chemotherapy, and did not show a meaningful response to tyrosine kinase inhibitor therapy. Testing for a FIP1L1-PDGFRA rearrangement is at present limited to patients with idiopathic hypereosinophilia, and we hypothesize that this abnormality may be under diagnosed in children with acute leukemias. PMID- 29025602 TI - Complex tibial plateau fractures: a retrospective study and proposal of treatment algorithm. AB - INTRODUCTION: Complex tibial plateau fractures are characterized by compression and sinking of one or both the articular surfaces. In this study, we evaluated clinical and radiological outcomes in patients with 41.C1,41.C2,41.C3 fractures according to AO classification. We also provide a specific therapeutic algorithm for each type of fracture. MATERIAL AND METHODS: The study was conducted in 43 patients who underwent surgical treatment for complex tibial plateau fractures and were followed for a minimum of 12 months. Outcome measures included: range of motion (ROM) recovery, Short Form 36 Health Survey (SF36), Knee injury and Osteoarthritis Outcome Score (KOOS), tibial plateau angle (TPA), and posterior angle (PA). RESULTS: Analyses were performed in 38 patients after excluding 5 cases because of missing imaging evaluations at follow-up. All patients showed good quality of life in all areas considered by SF36 and KOOS as well as satisfactory recovery of ROM. Average TPA and PA values were 87.9 degrees and 0.6 degrees , respectively. DISCUSSION: In complex tibial plateau fractures, surgical treatment is instrumental to obtain full restoration of the joint surface and fast functional recovery. Results are highly related to the type of treatment adopted for different kinds of fracture. In our case series, the best results were obtained when 41.C1 fractures were treated with a single plate. In 41.C2 fractures, clinical and imaging outcomes were independent of the number of plates used. In contrast, in 41.C3 fractures, optimal results were achieved with double plates. CONCLUSIONS: Based on our findings, as also supported by the literature, 41.C1 fractures should be treated with single plate, which reduces the surgical time, soft tissue damage and infection risk. On the other hand, 41.C3 fractures have best outcomes in stability, consolidation and recovery time when treated with double plate. PMID- 29025603 TI - Triangular block bridge method for surgical treatment of complex proximal humeral fractures: theoretical concept, surgical technique and clinical results. AB - INTRODUCTION: Criteria for classification, indication and choice of a surgical device to treat proximal humeral fractures are still controversial. We report an original technique based on a mechanical concept with a structural principle of a triangle as a rigid body applied to the humeral head fractures in association with other devices. This retrospective study aims to describe in detail the surgical technique and results at long time follow up. METHODS AND MATERIAL: We analysed two series of 101 patients with proximal humeral fractures (mean age, 52.9 y; range 19-78 y) treated between 2001 and 2012 reporting the clinical and radiological results. In the first series of 23 cases (mean age 51.4 y, range 35 74 y) we used as support a bone piece taken from allograft or autologous tricortical iliac crest and shaped as a triangular pyramid during the operation; while in the second series of 78 cases (mean age 53.6 years, range 29-78 years, SD 13.5 years) a triangular titanium cage was used in 69 patients while in 9 allograft or bone substitute was used as augmentation. An analytical retrospective study was done to understand the mechanical function of medial augmentation composed by a solid body in association with different types of synthesis to stabilize properly a proximal humeral fracture. RESULTS: We obtained excellent and good results in 83,2% of patients, fair in 12,8% and bad in 4% in terms of active anterior elevation, external and internal rotation, pain and strength according to Constant and DASH score. CONCLUSION: A medial solid body, especially in titanium material and shaped as trapezoidal/pyramidal form used to fill the secondary bone loss in complex instable proximal humeral fracture, allows an anatomic reduction and stable fixation in association with simple and more complex tools and it provides a better biomechanical environment for union and maintenance of alignment. PMID- 29025604 TI - Double plating for bicolumnar distal humerus fractures in the elderly. AB - Distal humerus fractures are uncommon injuries requiring specific clinical and radiographic analysis in order to plan the optimal therapeutic strategy. In particular, bicolumnar distal humerus fractures (Type A2, A3 and C) are complex fractures. In the last years, double plating fixation became the standard treatment: this procedure helped surgeons to obtain a stable and anatomical fixation and an early mobilization, which is the main outcome for obtaining valuable functional results. In this retrospective study, we evaluated the use of open bicolumnar 90-90 plating for fixation of acute fragility fractures of the distal humerus in elderly patients, using the olecranon osteotomy as surgical approach. PMID- 29025605 TI - Comparison between Carbon-Peek volar locking plates and titanium volar locking plates in the treatment of distal radius fractures. AB - INTRODUCTION: Unstable intra articular fractures of distal radius are frequently being managed with open reduction and internal fixation. Volar locking plate based on polyetheretherketon (PEEK) polymer has developed lately as an alternative to conventional metallic devices. The advantage of this kind of plates include the lack of metal allergies, radiolucency, low artefacts on MRI or imaging scans and the high resistance associated to loading forces. The aim of this study was to evaluate the clinical and radiological results using a new Carbon-PEEK volar locking plate compared with titanium volar locking plates for the treatment of distal radius fractures. METHODS AND MATERIAL: Thirty patients were included in this study. They all underwent traumatic intra-articular distal radius fractures and were surgically treated with volar locking plates. The patients were randomly divided in two groups: In Group A (15 patients) the fracture was stabilized with a CarboFix volar locking plate whereas in group B (15 patients) with an Acu-Lock Volar Distal Radius Plate. Range of motion (ROM), grip strength, Disabilities of the Arm, Shoulder and Hand (DASH) score and X-rays were evaluated. The mean follow up was 12 months. RESULTS: Analysis of Wrist ROM revealed that there was no statistical significant difference (p > 0.05) in regards to extension, flexion, ulnar deviation, radial deviation, supination and pronation comparing to the unaffected arm and between Group A and Group B. The mean score on the DASH was 15.3 in Group A and 13.2 in Group B (p > 0.05). Patients were able to return to their normal activities of daily living at an average of 4 weeks post-op in both Groups. Overall, the mean VAS score was 3.6 There were no statistically significant differences (p > 0.05) on X-Rays examination between two Groups in regards to alignment and fracture healing. CONCLUSIONS: Volar locking plates represent the most common procedure for the treatment of displaced distal radius fractures. In our series Carbon-peek volar locking plates seems to be analogue to titanium volar locking plates in terms of radiographic parameters and functional outcome. PMID- 29025606 TI - Does routine carpal tunnel release during fixation of distal radius fractures improve outcomes? AB - OBJECTIVE: This case-control study was designed to test the hypothesis whether carpal tunnel release (CTR) during fixation of distal radius 23-C2 AO fractures improves outcomes. METHODS: Thirty-five consecutive patients who sustained distal radius fractures of the dominant hand participated in this study. Patients were allocated into two groups: (a) The ORIF + CTR (16 patients (11 males and 5 females)); (b) the ORIF and NOT CTR 19 patients (12 males and 7 females). Patient assessment included visual analogic scale of pain (VAS), the subjective Mayo Wrist Score (MWS), electromyograms (EMG) at 3 month and 6 months from the day of injury and complications. All patients had the same physiotherapy treatment algorithm following surgery. Patient follow up took place at 1 month, 3, 6, and 12 months. RESULTS: A the T12 month follow up point the VAS average was 0.8 (range 0-3) in ORIF + CTR group compared to 1.2 (range 0-3) in the ORIF and NOT CTR. The MWS average was 98.7 (range 95-100) in ORIF + CTR group versus 97.6 (range 95-100) in ORIF no CTR group. There was no statistical significance (p > 0.5) between the two groups during the follow up period. Patients in the sixth month of ORIF + CTR had no suffering of the median nerve, while 31.58% of patients in ORIF and no CTR found to have carpal tunnel syndrome. CONCLUSIONS: Routine release of the transverse carpal ligament at the time of fracture fixation may reduce the incidence of postoperative median nerve dysfunction. PMID- 29025607 TI - PEEK radiolucent plate for distal radius fractures: multicentre clinical results at 12 months follow up. AB - INTRODUCTION: Open reduction and internal fixation (ORIF) with plate and screws represents the recommended treatment for unstable intra-articular distal radius fractures. Although significant progresses in surgical technique have been made, anatomical reconstruction of radio-carpal articular surface still represent a difficult task, especially in multifragmentary fractures. Available PEEK reinforced-carbon fiber composite radiolucent devices allow both an easier and more careful assessment of intra-operative reduction of the articular surface of distal radius and prompt correction of any residual step deformity. MATERIALS AND METHODS: We retrospectively reviewed clinical and radiological multicentre results of 71 consecutive AO B and C fracture pattern of distal radius treated using the same PEEK reinforced-carbon fiber composite radiolucent plate. RESULTS: Three patients lost at final follow up and 4 cases with incomplete radiological documentations were excluded from the study. 64 patients (38 females, 26 males) were available and formed the basis of this report. Fracture types included 9 patients with 23-B, 13 patients 23-B2,15 patients with 23-B3,10 patients with 23 C1, 7 patients with 23-C2 and 10 patients with 23-C3. Mean Modified Mayo wrist Score was on average 38.11 (SD 10.1; range 24-75, 95%CI 34.7-41.4), 67.22 (SD 9.6, range 50-90, 95%CI 64-70.4), 90.54 (SD 6.3, range 75-100, 95%CI 88.4-92.6) at one, two and twelve months of follow-up, respectively. A statistically significant difference was found between mean scores at different follow-up periods (p = 0.001). We noted 1 case of distal screw fixation aseptic loosening at 5 months post surgical intervention. CONCLUSIONS: PEEK reinforced-carbon fiber composite radiolucent plate represents a useful device for treatment of complex distal radius fractures in the adult population. It possesses unique biomechanical properties and allows for an easier anatomical reduction during surgical intervention. PMID- 29025608 TI - Proximal femoral fractures in elderly people: time to surgery. The experience of Milan's "ASST Pini/CTO". AB - Proximal femoral fractures in elderly patients represent a rapidly increasing socio-economic problem. The functional recovery and the mortality rate are influenced by a substantial quantity of variables, including the waiting time for surgical treatment ("time to surgery"). This study aims at investigating the average waiting time, and ascertaining the causes and effects, together with other non-modifiable variables, on the outcome for patients admitted to Milan's Istituto Ortopedico Gaetano Pini (Gaetano Pini Orthopaedic Institute) with a proximal femoral fracture. Data have been collected from 234 patients, between May and November 2015. Parameters recorded and analysed included fracture type, presence of comorbidities (Charlson Index (CCI)), the ASA (American Society of Anesthesiology) score, day of the week presenting to hospital, the type of treatment received, the functional recovery, and the patient's condition on discharge. In 46.4% of cases, the duration of preoperative stay prior to surgery was found to be in line with what is recommended in the literature (<48 h). In 20% of cases, the time to surgery was found to exceed 96 hours. The data collected that pertain to the distribution of the sample and the comorbidities were shown to be in line with the literature. A statistical significant difference was found between day of the week that the patient was admitted to hospital and the waiting time for surgery. PMID- 29025609 TI - Blood loss in trochanteric fractures: multivariate analysis comparing dynamic hip screw and Gamma nail. AB - INTRODUCTION: Anaemia in patients with trochanteric fracture is associated with increased morbidity and mortality and it is an independent risk factor for functional mobility of patients. Several authors have reported the blood loss following operative treatment comparing different fixation systems but few authors have evaluated many associated variables that could influence the perioperative blood loss. PURPOSE: To evaluate the blood loss in patients that had their trochanteric fracture stabilized with dynamic hip screw (DHS) or Gamma nail. Multivariate analysis of different variables that can influence blood loss was carried out (type of fracture, antiaggregant or anticoagulant therapy, time to surgery). The hypothesis was that there is no difference in terms of blood loss in patients with trochanteric fracture treated with DHS or Gamma nail considering all these variables. MATERIALS & METHODS: Perioperative blood loss was evaluated in 417 consecutive patients treated for trochanteric fracture with DHS or Gamma nail between January 2010 and March 2013. The perioperative blood loss was calculated using the Lisander formula modified by Foss-Kehlet based on pre- and post-operative haemoglobin values and transfusion rates. Univariate and multivariate analysis were performed integrating the following variables: type of fracture (A1 vs A2), antiaggregant/anticoagulant therapy vs no therapy, time to surgery (<24 vs >24 hours from trauma), type of implant (DHS vs Gamma nail). RESULTS: A significant blood loss (p <0.05) was observed between A1 and A2 fracture types (1247ml vs 1796.7ml), antiaggregant/anticoagulant therapy and no therapy (1592.7ml vs 1470.2ml), time-to-surgery <24 and >24 hours from trauma (1584.4ml vs 1323.9ml), DHS and Gamma nail (894.7ml vs 1720.6ml). At multivariate analysis, in the A1 fracture groups the DHS showed a significant lower blood loss compared to Gamma nail (p < 0.05). CONCLUSIONS: According to the perioperative blood loss, DHS should be used in A1 fractures while Gamma nail can be taking in account for the unstable A2 fractures. PMID- 29025610 TI - Is endoprosthesis safer than internal fixation for metastatic disease of the proximal femur? A systematic review. AB - INTRODUCTION: Metastases to the proximal femur are usually managed surgically by tumor resection and reconstruction with an endoprosthesis, or by fixation with osteosynthesis. Still controversy remains regarding the most appropriate surgical treatment. We posed the following questions: (1) Is the frequency of surgical revision greater in patients treated with internal fixation than endoprosthetic reconstruction, and (2) Do complications that do not require surgery occur more frequently in patients treated with internal fixation rather than in those with endoprosthetic reconstruction? MATERIALS AND METHODS: A systematic review was performed of those studies reporting on surgical revision and complication rates comparing the two surgical methods. Ten studies including 1107 patients met the inclusion criteria, three with high methodological quality, three intermediate, and four with lowquality, according to the STROBE guidelines. RESULTS: At present, prosthetic dislocation is the most common complication observed in patients managed by prosthesis replacement of the proximal femur, while loosening was the main cause of reoperation in the fixation group. Time to reintervention ranged from 3 to 11.6 months for the prosthetic replacement and from 7.8 to 22.3 months for the fixation group. Non surgical complications, (mainly dislocations and infections) were more commonly observed in patients operated on by prosthetic replacement. CONCLUSIONS: Implant related complications and surgery-related morbidity should be taken into account in the decision-making process for the surgical management of these patients. These data can improve the surgeon-patient communication and guide further studies on patients' survival and complications with respect to surgery. PMID- 29025611 TI - Carbon-fiber reinforced intramedullary nailing in musculoskeletal tumor surgery: a national multicentric experience of the Italian Orthopaedic Society (SIOT) Bone Metastasis Study Group. AB - INTRODUCTION: Carbon fiber reinforced (CFR) implants have been proposed for the treatment of fractures or impending fractures of the long bones in the oncology patient. Aim of this study is to present the largest cohort of oncology patients operated by CFR nailing by the Italian Orthopaedic Society (SIOT) Bone Metastasis Study Group. METHODS: 53 adult oncology patients were operated on with a CFR-PEEK nail. All the data from adjuvants therapies were collected. Bone callus formation, response to radiotherapy, relapse or progression of the osteolysis were recorded. Hardware survival and failure, breakage and need for implant revision were also analysed. RESULTS: Anatomical implantation of nails include humerus (n = 35), femur (n =11) and tibia (n = 7). The most frequent tumors affecting the bone were myeloma (n = 13), breast (n = 11), lung (n = 8), and renal cell cancer (n = 7). Acrylic cement reinforcement was used in 2 patients. One patient was subjected to electrochemotherapy after nail insertion. Intraoperative and early postoperative complications occurred in 13.2% and 7.54% of patients respectively. Eight patients had local progression and one developed a stress fracture proximally to the distal static screw. Radiographic union occurred in 14 patients; one screw loosening was recorded. DISCUSSION: There is currently a lack of solid evidence on the clinical use of CFR nails in oncologic patients. This is the first and largest study of CFR nailing, with the longest available follow up. CONCLUSIONS: Implant related complications and surgery related morbidity should be taken into account in the decision-making process for the surgical management of these patients. These data can improve the surgeon patient communication and guide further studies on patients' survival and complications with respect to surgery. PMID- 29025612 TI - Clavicle aseptic nonunion: is there a place for cortical allogenic strut graft? AB - We investigated functional and radiological outcome in 57 cases of midshaft clavicle nonunion treated with open reduction and internal fixation with plate and screws over a 13 year-period. Intercalary bone graft was used in 42 patients; opposite autologous strut graft was used in 31 cases to provide mechanical support to the host bone. Patients were analysed using chart and radiological review and assessed with DASH questionnaire obtained at the latest follow-up. 37 patients were male while 20 were females, with a mean age of 35 years (63-17). All cases were of nonunion, 35 atrophic and 22 hypertrophic. The dominant side was injured in 32 cases and the non dominant in 25 cases. Primarily, 43 cases were treated conservatively with a figure of eight bandage. Time between fracture and our operative treatment was on average 44 months (13-72 months). Only those patients who were symptomatic were included in this study. We used straight reconstruction LCP and low profile precontoured plates. By reviewing patients charts all the cases but one of nonunion progressed to osseous healing at a mean time of 14 weeks (range 12-16). The patient with non-union refused further surgery. 49 patients were available for a final follow up. DASH score was 16.7 at an average of 42 months. Open surgery and internal fixation, using plate and screws in a compression construct is the treatment of choice for symptomatic clavicular non-unions. Intercalary autologous or allograft bone graft should be used especially in patient with significant bone loss; autologous cortical strut graft provides optimum mechanical stability, thus assuring optimal screw purchase and allowing immediate limb movement. PMID- 29025613 TI - The treatment of long bones nonunions of upper limb with microsurgical cortico periosteal free flap. AB - BACKGROUND AND PURPOSE: Medial condyle corticoperiosteal flap is an emerging option for the treatment of upper limb non-infected nonunions. The hypothesis of our study is that corticoperiosteal flap could be an effective and safe procedure for the treatment of upper limb non-infected nonunions, evaluating radiographic and clinical outcome. METHODS: We enrolled 14 patients who underwent vascularized medial femoral condyle corticoperiosteal free flaps from January 2011 to December 2014. All patients were clinically evaluated (VAS, DASH) before surgery and at 6 and 12 months post surgery. The radiographic evaluation was performed every 30 days until the complete healing and at 12-month follow-up. We also recorded the range of motion pre and post surgery at the donor site. RESULTS: All nonunion sites healed primarily at an average time period of 5.2 months +/-1. Preoperative DASH score was 70 +/- 15.6; at 6 month follow-up was 21.51 +/- 10.63; at 12 month follow-up 18.0 +/- 9.9. Preoperative VAS was 7.05 +/- 2; at 6-month follow-up was 2.1 +/- 2; at 12-month follow-up was 1.8 +/- 1.16. Statistical analysis showed a significant difference (p <0.001) about the preoperative and the postoperative VAS and DASH evaluation both at 6 and 12-month follow-up, but we did not record any statistical difference between the 6-month and 12-month follow-up. At the donor site, the mean VAS score was 2 +/- 2.1 at seven days post operatively. All patients restore the full ROM at 7 days post surgery. CONCLUSIONS: Vascularized medial condyle corticoperiosteal free flap represents an effective and safe procedure for the treatment of upper limb nonunions. PMID- 29025614 TI - Outcome of distal tibia physeal fractures: a review of cases as related to risk factors. AB - INTRODUCTION: The physeal fractures represent the 20-30% of all fractures of the child. The distal tibial physis is the third most frequently injured. The most important complication is the premature physeal closure (PPC). Aim of this study is to evaluate risk factors that can influence the outcome like fracture pattern, fracture displacement, mechanism of injury and treatment method. MATERIAL AND METHODS: The records of 46 patients treated for distal tibia physeal fractures between 2003 and 2013 were reviewed. Initial injury radiographs were categorized according to Salter-Harris and Dias-Tachdjian classifications and the initial and post-treatment fracture displacementwas measured. Any complex fractures had preoperative CT for additional assessment. Three different types of treatment were compared: closed reduction and casting versus closed reduction and percutaneous pinning versus ORIF. RESULTS: Therewas significantly less residual displacement in patients who had ORIF versus those who had closed reduction and percutaneous Kirschner wires or plaster only. In fractures with an intact fibula, we found significantly less initial and residual displacement. The Dias-Tachdjian classification is significantly correlated with the displacement. Patients studied with CT show a less degree of post reduction displacement. At the final follow-up we found only one PPC as complication. CONCLUSION: The physeal fractures are very common in children and the main goal is to avoid any complications. It is clear that the development of complications after distal tibial fractures is due to multiple contributing factors like skeletal maturity, severity of injury, fracture type, degree of comminution and displacement aswell as adequacy of reduction. A premature physeal closure is the most common complication. The fibula fracture can play an important role in initial displacement. The presence of an intact fibula and a good anatomical reduction have a significant positive influence on fracture outcome. PMID- 29025615 TI - Treatment of an atrophic clavicle non-union with the chamber induction technique: a case report. AB - The gold standard technique for treating non-union of the clavicle is based on corticocancellous bone graft harvested from the iliac crest and fixation with a plate. In cases of large clavicular defects, this surgical procedure becomes ineffective and only a complex bone reconstruction can be considered. In the herein study we report on a clavicular non-union which was associated with a 4cm bone defect that was managed successfully with optimum fixation and the Chamber Induction Technique (C.I.T)-formation of the masquelet membrane- and subsequent biological augmentation with a composite bone graft. PMID- 29025616 TI - The peroneus brevis flap in the treatment of bone infections of the lower limb. AB - The Peroneus Brevis Flap is a described option for the soft tissue coverage and for small bone gap reconstruction in the lower third of the lower leg, where few other local flaps are available and reliable. We analysed retrospectively a case series of 11 consecutive patients whose age ranged from 31 to 87 years (mean 56), who underwent a reconstruction with a PB flap in the treatment of post-traumatic bone infections from October 2010 to February 2012. In our series, only one patient at a 3 year minimum follow-up showed recurrence of the bone infection and required further surgical treatment. Main complications were partial flap necrosis or overlying skin graft necrosis, but without the need of secondary surgery. In our experience, the PB flap is a reliable option for soft tissue coverage in the treatment of distal leg and ankle osteomyelitis. PMID- 29025617 TI - Disaster prevention should be equal. PMID- 29025618 TI - Preventing tuberculosis in people with HIV-no more excuses. PMID- 29025619 TI - Antenatal multiple micronutrient supplementation: benefits beyond iron-folic acid alone. PMID- 29025620 TI - Effect of male circumcision on risk of sexually transmitted infections and cervical cancer in women. PMID- 29025621 TI - Mitigating the financial effects of tuberculosis requires more than expansion of services. PMID- 29025622 TI - Lessons for the Sustainable Development Goals from Ethiopia's success: the case of under-5 mortality. PMID- 29025623 TI - A new public health order for Africa's health security. PMID- 29025624 TI - Tackling antimicrobial resistance in neonatal sepsis. PMID- 29025625 TI - Reframing non-communicable diseases. PMID- 29025626 TI - Reframing non-communicable diseases. PMID- 29025627 TI - Reframing non-communicable diseases - Authors' reply. PMID- 29025628 TI - Beyond divisive dichotomies in disease classification. PMID- 29025629 TI - Access, Watch, and Reserve antibiotics in India: challenges for WHO stewardship. PMID- 29025630 TI - Correction to Lancet Glob Health 2016; 5: e992-1003. PMID- 29025632 TI - Modifiers of the effect of maternal multiple micronutrient supplementation on stillbirth, birth outcomes, and infant mortality: a meta-analysis of individual patient data from 17 randomised trials in low-income and middle-income countries. AB - BACKGROUND: Micronutrient deficiencies are common among women in low-income and middle-income countries. Data from randomised trials suggest that maternal multiple micronutrient supplementation decreases the risk of low birthweight and potentially improves other infant health outcomes. However, heterogeneity across studies suggests influence from effect modifiers. We aimed to identify individual level modifiers of the effect of multiple micronutrient supplements on stillbirth, birth outcomes, and infant mortality in low-income and middle-income countries. METHODS: This two-stage meta-analysis of individual patient included data from 17 randomised controlled trials done in 14 low-income and middle-income countries, which compared multiple micronutrient supplements containing iron folic acid versus iron-folic acid alone in 112 953 pregnant women. We generated study-specific estimates and pooled subgroup estimates using fixed-effects models and assessed heterogeneity between subgroups with the chi2 test for heterogeneity. We did sensitivity analyses using random-effects models, stratifying by iron-folic acid dose, and exploring individual study effect. FINDINGS: Multiple micronutrient supplements containing iron-folic acid provided significantly greater reductions in neonatal mortality for female neonates compared with male neonates than did iron-folic acid supplementation alone (RR 0.85, 95% CI 0.75-0.96 vs 1.06, 0.95-1.17; p value for interaction 0.007). Multiple micronutrient supplements resulted in greater reductions in low birthweight (RR 0.81, 95% CI 0.74-0.89; p value for interaction 0.049), small-for gestational-age births (0.92, 0.87-0.97; p=0.03), and 6-month mortality (0.71, 0.60-0.86; p=0.04) in anaemic pregnant women (haemoglobin <110g/L) as compared with non-anaemic pregnant women. Multiple micronutrient supplements also had a greater effect on preterm births among underweight pregnant women (BMI <18.5 kg/m2; RR 0.84, 95% CI 0.78-0.91; p=0.01). Initiation of multiple micronutrient supplements before 20 weeks gestation provided greater reductions in preterm birth (RR 0.89, 95% CI 0.85-0.93; p=0.03). Generally, the survival and birth outcome effects of multiple micronutrient supplementation were greater with high adherence (>=95%) to supplementation. Multiple micronutrient supplements did not significantly increase the risk of stillbirth or neonatal, 6-month, or infant mortality, neither overall or in any of the 26 examined subgroups. INTERPRETATION: Antenatal multiple micronutrient supplements improved survival for female neonates and provided greater birth-outcome benefits for infants born to undernourished and anaemic pregnant women. Early initiation in pregnancy and high adherence to multiple micronutrient supplements also provided greater overall benefits. Studies should now aim to elucidate the mechanisms accounting for differences in the effect of antenatal multiple micronutrient supplements on infant health by maternal nutrition status and sex. FUNDING: None. PMID- 29025633 TI - Association between male circumcision and women's biomedical health outcomes: a systematic review. AB - BACKGROUND: Male circumcision reduces men's risk of acquiring HIV and some sexually transmitted infections from heterosexual exposure, and is essential for HIV prevention in sub-Saharan Africa. Studies have also investigated associations between male circumcision and risk of acquisition of HIV and sexually transmitted infections in women. We aimed to review all evidence on associations between male circumcision and women's health outcomes to benefit women's health programmes. METHODS: In this systematic review we searched for peer-reviewed and grey literature publications reporting associations between male circumcision and women's health outcomes up to April 11, 2016. All biomedical (not psychological or social) outcomes in all study types were included. Searches were not restricted by year of publication, or to sub-Saharan Africa. Publications without primary data and not in English were excluded. We extracted data and assessed evidence on each outcome as high, medium, or low consistency on the basis of agreement between publications; outcomes found in fewer than three publications were indeterminate consistency. FINDINGS: 60 publications were included in our assessment. High-consistency evidence was found for five outcomes, with male circumcision protecting against cervical cancer, cervical dysplasia, herpes simplex virus type 2, chlamydia, and syphilis. Medium-consistency evidence was found for male circumcision protecting against human papillomavirus and low-risk human papillomavirus. Although the evidence shows a protective association with HIV, it was categorised as low consistency, because one trial showed an increased risk to female partners of HIV-infected men resuming sex early after male circumcision. Seven outcomes including HIV had low-consistency evidence and six were indeterminate. INTERPRETATION: Scale-up of male circumcision in sub-Saharan Africa has public health implications for several outcomes in women. Evidence that female partners are at decreased risk of several diseases is highly consistent. Synergies between male circumcision and women's health programmes should be explored. FUNDING: US Centers for Disease Control and Prevention and Jhpiego. PMID- 29025634 TI - Catastrophic costs potentially averted by tuberculosis control in India and South Africa: a modelling study. AB - BACKGROUND: The economic burden on households affected by tuberculosis through costs to patients can be catastrophic. WHO's End TB Strategy recognises and aims to eliminate these potentially devastating economic effects. We assessed whether aggressive expansion of tuberculosis services might reduce catastrophic costs. METHODS: We estimated the reduction in tuberculosis-related catastrophic costs with an aggressive expansion of tuberculosis services in India and South Africa from 2016 to 2035, in line with the End TB Strategy. Using modelled incidence and mortality for tuberculosis and patient-incurred cost estimates, we investigated three intervention scenarios: improved treatment of drug-sensitive tuberculosis; improved treatment of multidrug-resistant tuberculosis; and expansion of access to tuberculosis care through intensified case finding (South Africa only). We defined tuberculosis-related catastrophic costs as the sum of direct medical, direct non-medical, and indirect costs to patients exceeding 20% of total annual household income. Intervention effects were quantified as changes in the number of households incurring catastrophic costs and were assessed by quintiles of household income. FINDINGS: In India and South Africa, improvements in treatment for drug-sensitive and multidrug-resistant tuberculosis could reduce the number of households incurring tuberculosis-related catastrophic costs by 6-19%. The benefits would be greatest for the poorest households. In South Africa, expanded access to care could decrease household tuberculosis-related catastrophic costs by 5-20%, but gains would be seen largely after 5-10 years. INTERPRETATION: Aggressive expansion of tuberculosis services in India and South Africa could lessen, although not eliminate, the catastrophic financial burden on affected households. FUNDING: Bill & Melinda Gates Foundation. PMID- 29025635 TI - How Ethiopia achieved Millennium Development Goal 4 through multisectoral interventions: a Countdown to 2015 case study. AB - BACKGROUND: 3 years before the 2015 deadline, Ethiopia achieved Millennium Development Goal 4. The under-5 mortality decreased 69%, from 205 deaths per 1000 livebirths in 1990 to 64 deaths per 1000 livebirths in 2013. To understand the underlying factors that contributed to the success in achieving MDG4, Ethiopia was selected as a Countdown to 2015 case study. METHODS: We used a set of complementary methods to analyse progress in child health in Ethiopia between 1990 and 2014. We used Demographic Health Surveys to analyse trends in coverage and equity of key reproductive, maternal health, and child health indicators. Standardised tools developed by the Countdown Health Systems and Policies working group were used to understand the timing and content of health and non-health policies. We assessed longitudinal trends in health-system investment through a financial analysis of National Health Accounts, and we used the Lives Saved Tool (LiST) to assess the contribution of interventions towards reducing under-5 mortality. FINDINGS: The annual rate of reduction in under-5 mortality increased from 3.3% in 1990-2005 to 7.8% in 2005-13. The prevalence of stunting decreased from 60% in 2000 to 40% in 2014. Overall levels of coverage of reproductive, maternal health, and child health indicators remained low, with disparities between the lowest and highest wealth quintiles despite improvement in coverage for essential health interventions. Coverage of child immunisation increased the most (21% of children in 2000 vs 80% of children in 2014), followed by coverage of satisfied demand for family planning by women of reproductive age (19% vs 63%). Provision of antenatal care increased from 10% of women in 2000 to 32% of women in 2014, but only 15% of women delivered with a skilled birth attendant by 2014. A large upturn occurred after 2005, bolstered by a rapid increase in health funding that facilitated the accelerated expansion of health infrastructure and workforce through an innovative community-based delivery system. The LiST model could explain almost 50% of the observed reduction in child mortality between 2000 and 2011; and changes in nutritional status were responsible for about 50% of the 469 000 lives saved between 2000 and 2011. These developments occurred within a multisectoral policy platform, integrating child survival and stunting goals within macro-level policies and programmes for reducing poverty and improving agricultural productivity, food security, water supply, and sanitation. INTERPRETATION: The reduction of under-5 mortality in Ethiopia was the result of combined activities in health, nutrition, and non-health sectors. However, Ethiopia still has high neonatal and maternal morbidity and mortality from preventable causes and an unfinished agenda in reducing inequalities, improving coverage of effective interventions, and strengthening multisectoral partnerships for further progress. FUNDING: Bill & Melinda Gates Foundation and Government of Canada. PMID- 29025636 TI - Folic acid grafted and tertiary amino based pH-responsive pentablock polymeric micelles for targeting anticancer drug delivery. AB - Increasing target to tumor sites and reducing accumulation at normal tissue sites of anticancer drugs are essential to improve the cancer chemotherapy efficiency. In this study, we have developed a novel pentablock polymeric poly(ethylene glycol)-b-(poly(2-(diethylamino) ethyl methacrylate)-b-poly (hydroxyethyl methacrylate)-g-folic acid)2 [PEG-b-(PDEAEMA-b-PHEMA-g-FA)2] micelles as anticancer drug nanocarrier. The carriers could target tumor cells rapidly, and response to the tumor sites pH to control drug release. The critical micelle concentration (CMC) of the intermediates copolymers was 4.37-7.08mg/L, which indicated that the self-assembled micelles had comparatively good internal circulation stability. The drug loaded micelles were prepared using dialysis method, resulting in an average particle size of below 120nm, and the drug loading content and entrapment efficiency were 21% and 48% respectively. The pH responsiveness and in vitro drug release of the micelles were studied, and the results showed a higher doxorubicin (DOX) cumulative amount at pH5.0 (~90%) compared to pH7.4 (~20%) owing to the protonation of the tertiary amino groups. In vitro cytotoxicity and endocytosis experiments showed that the tumor suppressing effect of drug-loaded micelles was close to those of free DOX. The loaded DOX could be delivered into the cancer cells in a short time, and about 80% of the tumor cells were killed after 48h incubation. The results indicate that the pentablock polymeric micelles have the potential to be applied for targeting anticancer drug delivery and control release. PMID- 29025637 TI - Electrospun biphasic tubular scaffold with enhanced mechanical properties for vascular tissue engineering. AB - Polymer scaffolds produced through an electrospinning process are frequently explored as tissue substitutes for regenerative medicine. Despite offering desirable surface area to volume ratios and tailorable pore sizes, their poor structural mechanical properties limit their applicability in load-bearing regions. In this study, we present a simple strategy to improve the mechanical properties of a vascular graft scaffold. We achieved the formation of biphasic tubular scaffolds by electrospinning polyurethane (PU) onto an airbrushed tube made of polycaprolactone (PCL). After preparation, the scaffold was subsequently thermally-crosslinked (60 degrees C) to strengthen the bonding between the two materials. The tensile strength and tensile elastic (Young's) modulus of the biphasic scaffolds were significantly enhanced from 4.5+/-1.72 and 45+/-15MPa (PU only) up to 67.5+/-2.4 and 1039+/-81.8MPa (PCL/PU; p<0.05). Additionally, suture retention force, burst pressure, and compliance were all improved. The cytotoxicity of the fabricated samples was investigated using an MTT assay after 7days of cell culture and found to be negligible (~100% viability). In conclusion, we have demonstrated the preparation and characterization of a stable and mechanically robust vascular graft scaffold using a novel combination of well established fabrication techniques. This study could also be extended to the fabrication of other biphasic scaffolds to better enhance the mechanical properties of the electrospun fibers mat without deteriorating its architecture structure. PMID- 29025631 TI - Effect of isoniazid preventive therapy on risk of death in west African, HIV infected adults with high CD4 cell counts: long-term follow-up of the Temprano ANRS 12136 trial. AB - BACKGROUND: Temprano ANRS 12136 was a factorial 2 * 2 trial that assessed the benefits of early antiretroviral therapy (ART; ie, in patients who had not reached the CD4 cell count threshold used to recommend starting ART, as per the WHO guidelines that were the standard during the study period) and 6-month isoniazid preventive therapy (IPT) in HIV-infected adults in Cote d'Ivoire. Early ART and IPT were shown to independently reduce the risk of severe morbidity at 30 months. Here, we present the efficacy of IPT in reducing mortality from the long term follow-up of Temprano. METHODS: For Temprano, participants were randomly assigned to four groups (deferred ART, deferred ART plus IPT, early ART, or early ART plus IPT). Participants who completed the trial follow-up were invited to participate in a post-trial phase. The primary post-trial phase endpoint was death, as analysed by the intention-to-treat principle. We used Cox proportional models to compare all-cause mortality between the IPT and no IPT strategies from inclusion in Temprano to the end of the follow-up period. FINDINGS: Between March 18, 2008, and Jan 5, 2015, 2056 patients (mean baseline CD4 count 477 cells per MUL) were followed up for 9404 patient-years (Temprano 4757; post-trial phase 4647). The median follow-up time was 4.9 years (IQR 3.3-5.8). 86 deaths were recorded (Temprano 47 deaths; post-trial phase 39 deaths), of which 34 were in patients randomly assigned IPT (6-year probability 4.1%, 95% CI 2.9-5.7) and 52 were in those randomly assigned no IPT (6.9%, 5.1-9.2). The hazard ratio of death in patients who had IPT compared with those who did not have IPT was 0.63 (95% CI, 0.41 to 0.97) after adjusting for the ART strategy (early vs deferred), and 0.61 (0.39-0.94) after adjustment for the ART strategy, baseline CD4 cell count, and other key characteristics. There was no evidence for statistical interaction between IPT and ART (pinteraction=0.77) or between IPT and time (pinteraction=0.94) on mortality. INTERPRETATION: In Cote d'Ivoire, where the incidence of tuberculosis was last reported as 159 per 100 000 people, 6 months of IPT has a durable protective effect in reducing mortality in HIV-infected people, even in people with high CD4 cell counts and who have started ART. FUNDING: National Research Agency on AIDS and Viral Hepatitis (ANRS). PMID- 29025638 TI - Identification of anti-cancer potential of doxazocin: Loading into chitosan based biodegradable hydrogels for on-site delivery to treat cervical cancer. AB - In this study, an effective, biocompatible and biodegradable co-polymer comprising of chitosan (CS) and polyvinyl alcohol (PVA) hydrogels, chemically crosslinked and impregnated with doxazocin, is reported. The chemical structural properties of the hydrogels were evaluated by Fourier Transform Infrared spectroscopy (FTIR) and physical properties were analysed by scanning electron microscopy (SEM). The swelling behaviour is an important parameter for drug release mechanism and was investigated to find out the solution absorption capacity of the synthesized hydrogels. MTT assay revealed that doxazocin loaded hydrogels significantly hindered the cell viability. Flow cytometry analysis was performed to analyse the effect of 8CLH and 4CLH on regulation of cell cycle. Moreover, in vivo anti-cancer potential of synthesized hydrogels was assessed by CAM Assay. Results displayed that 8CLH with 1mg/ml of doxazocin had prominently decreased the angiogenesis and significantly increased the number of cells in G1 phase of cell cycle. These results declared that 8CLH will be a good addition among hydrogels used for treatment of cancer by onsite delivery of drug. PMID- 29025639 TI - Effects of copper nanoparticles in porous TiO2 coatings on bacterial resistance and cytocompatibility of osteoblasts and endothelial cells. AB - Copper (Cu) has garnered increasing interest due to its excellent antimicrobial activity and important roles in human metabolism. Although the biological effects of Cu have been studied, the effects of Cu nanoparticles (NPs) on cell behavior are not well understood. In this study, porous TiO2 coatings doped with different amounts of Cu NPs (designated as 0 Cu, 0.3 Cu, and 3.0 Cu) are deposited on titanium by micro-arc oxidation (MAO). The Cu NPs coated samples exhibit excellent antibacterial activity against Staphylococcus aureus (S. aureus). In vitro cytocompatibility evaluation discloses that 0 Cu and 0.3 Cu have no toxicity to osteoblasts but 3.0 Cu shows cytotoxicity. 0.3 Cu promotes proliferation and adhesion of osteoblasts and enhances extracellular matrix mineralization (ECM), but has little effects on the alkaline phosphatase activity (ALP) and collagen secretion. Surprisingly, the Cu NPs coated samples show a different behavior with endothelial cells. Both 0.3 Cu and 3.0 Cu show no cytotoxicity on endothelial cells and promote cell proliferation. Production of nitric oxide (NO) and secretion of vascular endothelial growth factor (VEGF) by the endothelial cells are observed from the Cu NPs doped TiO2 coatings. PMID- 29025640 TI - Fabrication and preliminary study of a biomimetic tri-layer tubular graft based on fibers and fiber yarns for vascular tissue engineering. AB - Designing a biomimetic and functional tissue-engineered vascular graft has been urgently needed for repairing and regenerating defected vascular tissues. Utilizing a multi-layered vascular scaffold is commonly considered an effective way, because multi-layered scaffolds can easily simulate the structure and function of natural blood vessels. Herein, we developed a novel tri-layer tubular graft consisted of Poly(L-lactide-co-caprolactone)/collagen (PLCL/COL) fibers and Poly(lactide-co-glycolide)/silk fibroin (PLGA/SF) yarns via a three-step electrospinning method. The tri-layer vascular graft consisted of PLCL/COL aligned fibers in inner layer, PLGA/SF yarns in middle layer, and PLCL/COL random fibers in outer layer. Each layer possessed tensile mechanical strength and elongation, and the entire tubular structure provided tensile and compressive supports. Furthermore, the human umbilical vein endothelial cells (HUVECs) and smooth muscle cells (SMCs) proliferated well on the materials. Fluorescence staining images demonstrated that the axially aligned PLCL/COL fibers prearranged endothelium morphology in lumen and the circumferential oriented PLGA/SF yarns regulated SMCs organization along the single yarns. The outside PLCL/COL random fibers performed as the fixed layer to hold the entire tubular structure. The in vivo results showed that the tri-layer vascular graft supported cell infiltration, scaffold biodegradation and abundant collagen production after subcutaneous implantation for 10weeks, revealing the optimal biocompatibility and tissue regenerative capability of the tri-layer graft. Therefore, the specially designed tri-layer vascular graft will be beneficial to vascular reconstruction. PMID- 29025641 TI - Polyurethane foam/nano hydroxyapatite composite as a suitable scaffold for bone tissue regeneration. AB - In bone tissue regeneration, the use of biomineralized scaffolds to create the 3D porous structure needed for well-fitting with defect size and appropriate cell interactions, is a promising alternative to autologous and heterologous bone grafts. Biomineralized polyurethane (PU) foams are here investigated as scaffold for bone tissue regeneration. Biomineralization of the foams was carried out by activation of PU surface by a two steps procedure performed for different times (1 to 4 weeks). Scaffolds were investigated for morphological, chemico-physical and mechanical properties, as well as for in vitro interaction with rat Bone Marrow Mesenchymal Stem Cells (BMSCs). Untreated and biomineralized PU samples showed a homogenous morphology and regular pore size (average O=407MUm). Phase and structure of formed calcium phosphates (CaPs) layer onto the PU foam were analyzed by Fourier Transform Infrared spectroscopy and X-ray diffraction, proving the formation of bone-like nano hydroxyapatite. Biomineralization caused a significant increase of mechanical properties of treated foams compared to untreated ones. Biomineralization also affected the PU scaffold cytocompatibility providing a more appropriate surface for cell attachment and proliferation. Considering the obtained results, the proposed scaffold can be considered suitable for bone tissue regeneration. PMID- 29025642 TI - Engineered chimeric peptides with antimicrobial and titanium-binding functions to inhibit biofilm formation on Ti implants. AB - Titanium (Ti) implants have been commonly used in oral medicine. However, despite their widespread clinical application, these implants are susceptible to failure induced by microbial infection due to bacterial biofilm formation. Immobilization of chimeric peptides with antibacterial properties on the Ti surface may be a promising antimicrobial approach to inhibit biofilm formation. Here, chimeric peptides were designed by connecting three sequences (hBD-3-1/2/3) derived from human beta-defensin-3 (hBD-3) with Ti-binding peptide-l (TBP-l: RKLPDAGPMHTW) via a triple glycine (G) linker to modify Ti surfaces. Using X-ray photoelectron spectroscopy (XPS), the properties of individual domains of the chimeric peptides were evaluated for their binding activity toward the Ti surface. The antimicrobial and anti-biofilm efficacy of the peptides against initial settlers, Streptococcus oralis (S. oralis), Streptococcus gordonii (S. gordonii) and Streptococcus sanguinis (S. sanguinis), was evaluated with confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). Transmission electron microscopy (TEM) and real-time quantitative PCR (qRT-PCR) were used to study cell membrane changes and the underlying antimicrobial mechanism. Compared with the other two peptides, TBP-1-GGG-hBD3-3 presented stronger antibacterial activity and remained stable in saliva and serum. Therefore, it was chosen as the best candidate to modify Ti surfaces in this study. This peptide inhibited the growth of initial streptococci and biofilm formation on Ti surfaces with no cytotoxicity to MC3T3-E1 cells. Disruption of the integrity of bacterial membranes and decreased expression of adhesion protein genes from S. gordonii revealed aspects of the antibacterial mechanism of TBP-1-GGG-hBD3-3. We conclude that engineered chimeric peptides with antimicrobial activity provide a potential solution for inhibiting biofilm formation on Ti surfaces to reduce or prevent the occurrence of peri-implant diseases. PMID- 29025643 TI - Comb-shaped, temperature-tunable and water-soluble porphyrin-based thermoresponsive copolymer for enhanced photodynamic therapy. AB - A novel comb-shaped porphyrin end-functionalized poly(N-isopropylacrylamide)-b poly[oligo (ethylene glycol methyl ether methacrylate)] (Por-PNIPAM-b-POEGMA) was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. Due to the incorporation of hydrophilic POEGMA contents, the copolymer shows the lower critical solution temperatures (LCST) of 37-41.8 degrees C higher than PNIPAM. Moreover, this copolymer showed efficient singlet oxygen under light irradiation at 650nm, and the productivity of singlet oxygen was 0.59, which could be used for photodynamic therapy. In addition, the in vitro study indicated that this copolymer showed no significant dark cytotoxicity, while showed apparent photo-toxicity toward HeLa cancer cells under red light irradiation at 650nm. MTT results indicated that this copolymer with appropriate LCST could be accumulated on locally tumor tissues and killing of cancer cells (Hela), which may be a promising photosensitizer in photodynamic therapy for cancer treatment. PMID- 29025644 TI - Polylactic acid-based porous scaffolds doped with calcium silicate and dicalcium phosphate dihydrate designed for biomedical application. AB - Polylactic acid (PLA), dicalcium phosphate dihydrate (DCPD) and/or hydraulic calcium silicate (CaSi) have been used to prepare highly-porous scaffolds by thermally induced phase separation technique (TIPS). Three experimental mineral doped formulations were prepared (PLA-10CaSi, PLA-5CaSi-5DCPD, PLA-10CaSi 10DCPD). Pure PLA scaffolds constituted the control group. Scaffolds were tested for their chemical-physical and biological properties, namely calcium release, alkalinizing activity, surface microchemistry and micromorphology by ESEM, apatite-forming ability by EDX, micro-Raman and IR spectroscopy, thermal properties by differential scanning calorimetry, mechanical properties by quasi static parallel-plates compression testing, porosity by a standard water absorption method and direct-contact cytotoxicity. All mineral-doped scaffolds released biologically relevant ions (biointeractive). A B-type carbonated apatite layer (thickness decreasing along the series PLA-10CaSi-10DCPD>PLA-10CaSi>PLA 5CaSi-5DCPD>PLA) was detected on the surface of all the 28d-aged scaffolds. Surface pores of fresh scaffolds ranged from 10 to 20MUm in pure PLA to 10-100MUm in PLA-10CaSi. An increase in porosity was detected in 28d-aged pure PLA scaffolds (approx. 30% of material loss with decrease of the PLA chain length); differently, in mineral-doped scaffolds, the PLA degradation was balanced by deposition/nucleation of apatite. All scaffolds showed absence of toxicity, in particular PLA-10CaSi-10DCPD. The designed scaffolds are biointeractive (release biologically relevant ions), nucleate apatite, possess high surface and internal open porosity and can be colonized by cells, appearing interesting materials for bone regeneration. PMID- 29025645 TI - Enhancing the anti-gastric cancer activity of curcumin with biocompatible and pH sensitive PMMA-AA/ZnO nanoparticles. AB - Curcumin loaded ZnO nanoparticles were successfully synthesised and encapsulated with co-polymer PMMA-AA (Cur/PMMA-AA/ZnO NPs). The ZnO nanoparticles have been converted as good cargo materials to carry the well-known hydrophobic drug curcumin by surface functionalization. Physical characteristics of these novel nanomaterials have been studied with transmission electron microscopy (TEM) and powder X-ray diffraction (XRD) in conjunction with spectral techniques. A narrow particle size distribution with an average value of 42nm was found via TEM. Most importantly, the pH-responsive release of curcumin from the nano-vehicle ensures safer, more controlled delivery of the drug at physiological pH. The drug entrapment efficiency and loading was evaluated and the in vitro efficacy as anticancer drug delivery vehicle was analyzed. The potential toxicity of Cur/PMMA AA/ZnO NPs was studied by using AGS gastric cancer cell lines via MTT assay. These results revealed that the proposed nanomaterials induce a remarkable cell death in in-vitro models. The multifunctional properties of Cur/PMMA-AA/ZnO NPs may open up new avenues in cancer therapy through overcoming the limitations of conventional cancer therapy. PMID- 29025646 TI - Nanographene oxide as a switch for CW/pulsed NIR laser triggered drug release from liposomes. AB - The application of pulsed and continuous wave (CW) lasers in nanomedicine has increased significantly over the last decade. Near infrared (NIR) lasers can be used for the precise control of drug release at the target site in a non-invasive manner. In this study, we have prepared nanographene oxide (nGO, size ~40nm) integrated liposomes (size ~900nm). The nGOs were not simply adsorbed onto the liposome surface but was embedded inside the liposomes as characterized by cryo TEM, selected area electron diffraction (SAED), and fluorescence quenching studies. The embedded nGOs could act as a molecular switch for NIR light controlled drug release from the liposomes. Calcein was encapsulated into the liposome as a model drug to evaluate the efficiency of light controlled release. An on-demand pulsatile drug release was achieved by irradiation of CW/pulsed NIR lasers into the nGO-liposome suspension. Triggering with a pulsed laser resulted in larger release of calcein with a minimal temperature increase (~2 degrees C) of the liposome solution, compared to lower release rate and a significant temperature increase (~8 degrees C) by a CW laser with the same light energy, suggesting two separate mechanisms and different potential applications depending on the laser type. PMID- 29025647 TI - Glucose functionalized carbon quantum dot containing organic radical for optical/MR dual-modality bioimaging. AB - The organic paramagnetic compounds nitroxides have great potential as magnetic resonance imaging (MRI) contrast agents. Herein, we report the synthesis and characterization of glucose modified carbon quantum dot containing 2,2,6,6 tetramethyl-piperidinooxy (TEMPO) for targeted bimodal MR/optical imaging of tumor cells. CQD-TEMPO-Glu shows the greatest potentials for bioimaging applications in view of low cytotoxicity, good biocompatibility, green fluorescence emission and high T1 relaxivities. The in vitro MR and optical imaging results confirm enhanced cellular internalization of CQD-TEMPO-Glu in cancer cells through GLUT mediated endocytosis. These results confirm that CQD TEMPO-Glu is expected to be widely exploited as dual-modal contrast for cancer imaging. PMID- 29025648 TI - Visible light-assisted efficient degradation of dye pollutants with biomass supported TiO2 hybrids. AB - The objective of this work was to develop a novel organic-inorganic hybrid nanomaterial from agricultural biomass waste for environmental applications. The sugarcane bagasse (SB) supported TiO2 hybrids were firstly synthesized via a sol gel method. A series of characterizations were carried out to reveal the structures and components of obtained hybrids. Due to organic-inorganic hybrid (OIH) effect and element doping, the SB-TiO2 hybrid can expand its optical absorbance ranging from ultraviolet to visible light. The optimal hybrid catalyst prepared with SB doping amount of 2g in 100mL titanic gel and calcined at 200 degrees C was able to degradate 95.0% methyl orange (MO) in 5h under visible light. This study will pave a new and facile pathway for novel visible light driven photocatalysts based on TiO2 modified by agricultural biomass waste. PMID- 29025649 TI - Room temperature preparation of fluorescent starch nanoparticles from starch dopamine conjugates and their biological applications. AB - Fluorescent organic nanoparticles (FONs) have been regarded as the promising candidates for biomedical applications owing to their well adjustment of chemical structure and optical properties and good biological properties. However, the preparation of FONs from the natural derived polymers has been rarely reported thus far. In current work, we reported a novel strategy for preparation of FONs based on the self-polymerization of starch-dopamine conjugates and polyethyleneimine in rather mild experimental conditions, including air atmosphere, aqueous solution, absent catalysts and at room temperature. The morphology, chemical structure and optical properties of the resultant starch based FONs were investigated by different characterization techniques. Biological evaluation results demonstrated that these starch-based FONs possess good biocompatibility and fluorescent imaging performance. More importantly, the novel strategy might also be extended for the preparation of many other carbohydrate polymers based FONs with different structure and functions. Therefore, this work opens a new avenue for the preparation and biomedical applications of luminescent carbohydrate polymers. PMID- 29025650 TI - Ephemeral biogels to control anti-biofilm agent delivery: From conception to the construction of an active dressing. AB - Chronic wound colonization by bacterial biofilms is common and can cause various complications. An anti-biofilm strategy was developed around the co-entrapment of a commercially available antiseptic, PHMB (polyhexamethylene biguanide 4mgmL-1), with EDTA (Ethylen diamine tetra acetic acid, 20mM) in a gelatin gel. The two active compounds act synergistically against bacterial biofilms, but their efficiency is strongly reduced (16-fold) when entrapped inside the 5% gelatin gel, and they weaken the mechanical properties (50-fold) of the gel. Increasing the gelatin concentration to 7% allows for good mechanical properties but large diffusional constraints. An active ephemeral gel, a chemical gel with controlled hydrolysis, was conceived and developed. When the ephemeral gel was solubilized after 48h, PHMB delivery increased, leading to good anti-biofilm activity. The various gels were examined over 24 and 48h of contact with P. aeruginosa and S. aureus biofilms, two types of bacterial biofilms frequently encountered in chronic wounds. The ephemeral gel eradicated the dense biofilms (>6.107CFU.cm-2) produced by either single or mixed strains; a similar efficiency was measured for biofilms from strains of both laboratory and clinical origin. The formulation was then adapted to develop a dressing prototype that is active against biofilms and fulfils the requirements of an efficient wound care system. PMID- 29025651 TI - Hierarchically porous structure, mechanical strength and cell biological behaviors of calcium phosphate composite scaffolds prepared by combination of extrusion and porogen burnout technique and enhanced by gelatin. AB - In this study, hierarchically porous calcium phosphate scaffolds (HTCP) with unidirectional pores, transversely interconnected pores, and micropores were fabricated by the combination of extrusion and porogen burnout technique. Gelatin was incorporated into the HTCP scaffolds by vacuum-impregnation of gelatin solution and subsequent freeze-drying. The phase composition, microstructure, physical and cytobiological properties were analyzed. The results showed that the HTCP scaffolds were composed of beta-tricalcium phosphate with minor hydroxyapatite. The HTCP scaffolds had unidirectional pores (~400MUm), transversely interconnected pores (~130MUm) and micropores (~1MUm). The incorporation of gelatin significantly increased the compressive strength, toughness, and cell seeding of the HTCP scaffolds. The composite scaffolds showed excellent cytocompatibility. The hierarchically porous calcium phosphate composite scaffolds may have potential application prospects in bone tissue engineering. PMID- 29025652 TI - High-activity chitosan/nano hydroxyapatite/zoledronic acid scaffolds for simultaneous tumor inhibition, bone repair and infection eradication. AB - Implanted biomaterials combined tumor inhibition and bone repair property are urgently needed to address the huge bone destruction and the high local recurrence following primary surgery in bone tumor therapy. In this work, a high activity chitosan/nano hydroxyapatite (CS/nHA) scaffold containing zoledronic acid (CS/nHA/Zol) was prepared with a facile method. The prepared CS/nHA/Zol scaffolds exhibited excellent tumor inhibition property towards giant cell tumor of bone (GCT) in vitro through inducing cells apoptosis by up-regulating pro apoptosis genes expression and reducing the osteoclastic activity of tumor cells by down-regulating osteoclastic genes. Meanwhile, the prepared scaffolds possessed well biocompatibility and osteoinductivity as compared to pure CS/nHA scaffolds. Furthermore, the prepared scaffolds also presented outstanding antibacterial activity against clinical pathogenic S. aureus and E. coli. These overall findings successfully demonstrated the prepared CS/nHA/Zol scaffolds had a multifunction of tumor therapy, bone repair, and antibacterium, which provides a new approach possessed promising advantages in bone tumor therapy. PMID- 29025653 TI - Stepwise pH/reduction-responsive polymeric conjugates for enhanced drug delivery to tumor. AB - In this research, a charge-conversional polymer, poly-l-lysine-lipoic acid (PLL LA), was prepared by dimethylmaleic anhydride (DA) modification and applied as a carrier with enhanced cell internalization and intracellular pH- and reduction triggered doxorubicin (Dox) release. The surface charge of dimethylmaleic anhydride-poly-l-lysine-lipoic acid micelles (DA-PLL-LA) was negative at physiological pH and reversed to positive at the extracellular and intracellular pH of cancer cells. At tumor extracellular pH of 6.8, the conjugates underwent a rapid charge-reversible process with almost 80% DA cleavage within 2h, and then endocytosed into the endo/lysosomes more rapidly than at physiological pH of 7.4. The Dox/DA-PLL-LA micelles (Dox-micelles) demonstrated a sustained drug release in vitro under physiological condition, and rapid Dox release was triggered by both extracellular pH and high-concentration reducing glutathione. The Dox micelles also exhibited enhanced internalization at extracellular pH, rapid intracellular drug release, and improved cytotoxicity against A549 cells in vitro. Excellent tumor-penetrating efficacy was also found in A549 tumor spheroids and solid tumor slices. Moreover, the DA-PLL-LA micelles exhibited excellent tumor-targeting ability in tumor tissues and excellent antitumor efficacy and low systemic toxicity in breast tumor-bearing mice. Therefore, the DA-PLL-LA micelles demonstrated great potential for targeted and efficient drug delivery in cancer treatments. PMID- 29025655 TI - alpha-Cyclodextrin concentration-controlled thermo-sensitive supramolecular hydrogels. AB - Supramolecular hydrogels (SHGs) built from inclusion complex of macrocyclic compound alpha-cyclodextrin (alpha-CD) and poly(ethylene glycol) (PEG) have attracted much interest due to their excellent biocompatibility and great potential for biomedical applications. In this work, the hydrogen bond of nucleic acid was introduced into the above-mentioned SHG by syntheses of nucleobase guanine/cytosine (G/C)-terminated PEG (G-PEG-G/C-PEG-C). The base-pairing interaction between G and C as an additional network junction effectively enhanced storage moduli (G's) of the hydrogels. Moreover, the prepared hydrogels exhibited excellent cytocompatibility and property for controlled drug release, outlining the potential of thermo-sensitive construct for biomedical applications, such as local chemotherapy of cancers. PMID- 29025654 TI - 3D printing hydrogel with graphene oxide is functional in cartilage protection by influencing the signal pathway of Rank/Rankl/OPG. AB - 3Dprinting is defined as the use of printing technology to deposit living cells, and biomaterials on a given /a substrate. Graphene oxide nanoparticles (GO-np) have been used as a delivery vehicle for small molecule drugs in order to investigate the state of GO-np within 3D tissue constructs in terms of a composite 3D printing scaffold, which in turn is relevant to the protection of cartilage. We transplanted rats with hydrogel/GO-np and hydrogel, which in turn showed that hydrogel/GO-np protected the tissue of cartilage by the signal pathway of Rank/Rankl/OPG. Those findings indicated that GO-np may be potentially used to control the release of carrier materials and influence the signal pathway of Rank/Rankl/OPG. PMID- 29025657 TI - Novel fluoridated silk fibroin/ TiO2 nanocomposite scaffolds for bone tissue engineering. AB - It is known that Fluoride ions strongly affect bone mineralization and formation. In the present study, the engineered bone tissue scaffolds are fabricated using silk fibroin (SF) and flouridated TiO2 nanoparticles. TiO2 nanoparticles are modified by fluoride ions, and different levels (0, 5, 10, 15 and 20wt%) of the fluoridated TiO2 nanoparticles (TiO2-F) were subsequently added to the SF matrix through phase separation method to prepare silk fibroin/flouridated TiO2 nanocomposite scaffolds (SF/TiO2-F). Phase structure, functional groups, morphology and mechanical properties of the obtained scaffolds were evaluated by X-ray diffraction method (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and compressive testing, respectively. In vitro degradation studies of scaffolds were performed by incubating the samples in phosphate buffered saline (PBS) at 37 degrees C and pH7.4 for 30days. Additionally, the bioactivity of scaffolds was estimated in a simulated body fluid (SBF) buffered at 37 degrees C and pH7.4 for 28days. Moreover, MTT assay was used to confirm the biocompatibility of the scaffolds using human like SaOS-2 osteoblast cell line for 1, 3 and 5days. The obtained results indicated that the mechanical properties of scaffolds have been improved by increasing the TiO2-F amount up to 15wt%. However, a detrimental effect was observed by a further increase in the TiO2-F content. The bioactivity of SF/TiO2-F nanocomposite scaffolds was promoted by flouridation of TiO2. Furthermore, cell cytotoxicity results demonstrated that the SF/TiO2-F nanocomposite scaffolds are nontoxic to osteoblasts. The cell fixation results after 3days of incubation revealed that the cell attachment and spreading on SF/TiO2-F nanocomposite scaffolds are improved with respect to SF/TiO2 nanocomposite scaffolds control sample. PMID- 29025656 TI - Dual-delivery of VEGF and NGF by emulsion electrospun nanofibrous scaffold for peripheral nerve regeneration. AB - Controlled delivery of multiple therapeutic agents can be considered an effective approach in nerve injury due to its multifunction. In this study, recombinant human vascular endothelial growth factor (VEGF) and recombinant human nerve growth factor (NGF) were loaded on the surface and in the core of emulsion electrospun poly (l-lactic acid) (PLLA) nanofibrous scaffold, respectively. The in vitro studies showed that VEGF and NGF had a sequential release pattern in which most of the VEFG was released in the first few days but the NGF could be continuously released for >1month. The dual-delivery scaffold could enhance the neural differentiation of induced pluripotent stem cells-derived neural crest stem cells (iPSCs-NCSCs) in vitro. Furthermore, this scaffold was applied to a critical sized defect in rat sciatic nerve model. Footprint analysis, electrophysiological tests, and histological analysis revealed that a significant improvement of neovascularization as well as nerve healing after 3months post operation could be achieved by dual-delivery of VEGF and NGF. Taken together, the present study indicated that VEGF and NGF in emulsion electrospun nanofibrous scaffold had a synergistic effect on regeneration of vascularized nerve tissue. PMID- 29025658 TI - A novel local drug delivery system: Superhydrophobic titanium oxide nanotube arrays serve as the drug reservoir and ultrasonication functions as the drug release trigger. AB - A local drug delivery system consisting of superhydrophobic titanium oxide nanotube (S-TNTs) arrays and ultrasonic-controlled release trigger was developed in this work. Hydrophilic TNTs arrays are converted into superhydrophobic after being treated by 1H,1H,2H,2H- perfluorooctyl-triethoxysilane (POTS). S-TNTs arrays serving as a drug-carrying vehicle require no extra sealing treatment due to the excellent isolation effect from the trapped air layer on the surface. Different amounts of drugs could be loaded into S-TNTs arrays by control of the structure of arrays (including length and diameter of tubes) and the original amount of drug in the drug-loading solution. The relation between surface morphology of TNTs arrays and superhydrophobicity (isolation effect) was thoroughly investigated. To achieve a stimulus-responsive drug delivery system, ultrasonication was employed as an efficient drug release trigger. Trapped air layer could be selectively removed by ultrasonication, and therefore the loaded drug could be released in a multiple and controlled manner. Any drugs that can dissolve in nonpolar solutions are expected to be suitable for this local drug delivery system. PMID- 29025659 TI - Multi-responsive hydrogels with UCST- and LCST-induced shrinking and controlled release behaviors of rhodamine B. AB - By using a disulfide-functionalized crosslinker, a pH- and thermo-responsive 2 (dimethylamino) ethyl methacrylate (DMAEMA) monomer and a zwitterionic sulfobetaine methacrylate (SBMA) monomer were conjugated to fabricate a multi responsive P(DMAEMA-SS-SBMA) copolymeric hydrogel. Apparent UCST and LCST volume transitions were observed in the P(DMAEMA-SS-SBMA) hydrogels with equivalent weight fractions of monomers. Different pore size and response sensitivity of shrunken structures below UCST and above LCST were visualized by SEM images. The hydrogel exhibited a highly swollen state with a swelling ratio of 17.8 and a pore size of 106MUm at 45 degrees C, they deswelled unequally at 5 degrees C with a compact surface with pore size of 30MUm and a loose bulk with pore size of 83MUm, while they deswelled uniformly at 65 degrees C with dense shrunken structure with small pore size of 12MUm. The dual-thermoresponsive hydrogel was promising in controlled drug release. The initial drug release was predominantly controlled by diffusion, and the long-term release was influenced by the swelling ratio. Below UCST, the relatively hydrophilic shrunken structure and slow diffusion had a synergistic effect on the sustained release. Above LCST, the fast diffusion and the rapid "off" effect of hydrophobic skin layer resulted in a burst release. Additionally, pH-tunable swelling and redox-sensitive degradation were also observed. PMID- 29025660 TI - Electrospun carboxyl multi-walled carbon nanotubes grafted polyhydroxybutyrate composite nanofibers membrane scaffolds: Preparation, characterization and cytocompatibility. AB - Electrospun polyhydroxybutyrate (PHB)/carboxyl multi-walled carbon nanotubes grafted polyhydroxybutyrate (CMWCNT-g-PHB) composite nanofibers scaffolds were fabricated by electrospinning technology. The grafted product CMWCNT-g-PHB was prepared by condensation reactions between the carboxyl groups of CMWCNT and hydroxyl groups of PHB molecules and characterized by FTIR, XRD, XPS, TG and TEM measurements. The surface morphology, hydrophilicity and tensile mechanical properties of the electrospun PHB/CMWCNT-g-PHB composite nanofibers membrane scaffolds were investigated. The values of tensile strength, breaking elongation rate, initial modulus and fracture energy of the composite nanofibers scaffolds can reach to 4.64MPa, 255.59%, 88MPa and 109.73kJ/m2, respectively. The biodegradability and cytocompatibility of the electrospun composite nanofibers scaffolds were preliminarily evaluated. The as-prepared electrospun PHB/CMWCNT-g PHB composite nanofibers scaffolds with the characteristics of large specific area, high porosity, good biodegradability and cytocompatibility as well as sufficient mechanical properties should be more promising in the field of tissue engineering scaffolds and biological medicine. PMID- 29025661 TI - Low systemic toxicity nanocarriers fabricated from heparin-mPEG and PAMAM dendrimers for controlled drug release. AB - In this report, poly(amide amine) (PAMAM) dendrimer and Heparin-grafted monomethoxy polyethylene glycol (HEP-mPEG) were synthesized and characterized. In aqueous solution, the generation 4 PAMAM dendrimers (G4.0-PAMAM) existed as nanoparticles with particle size of 5.63nm. However, after electrostatic complexation with HEP-mPEG to form a core@shell structure G4.0-PAMAM@HEP-mPEG, the size of nanoparticles was significantly increased (73.82nm). The G4.0 PAMAM@HEP-mPEG nanoparticles showed their ability to effectively encapsulate doxorubicin (DOX) for prolonged and controlled release. The cytocompatibility of G4.0-PAMAM@HEP-mPEG nanocarriers was significantly increased compared with its parentally G4.0-PAMAM dendrimer in both mouse fibroblast NIH3T3 and the human tumor HeLa cell lines. DOX was effectively encapsulated into G4.0-PAMAM@HEP-mPEG nanoparticles to form DOX-loaded nanocarriers (DOX/G4.0-PAMAM@HEP-mPEG) with high loading efficiency (73.2%). The release of DOX from DOX/G4.0-PAMAM@HEP-mPEG nanocarriers was controlled and prolonged up to 96h compared with less than 24h from their parentally G4.0-PAMAM nanocarriers. Importantly, the released DOX retained its bioactivity by inhibiting the proliferation of monolayer-cultured cancer HeLa cells with the same degree of fresh DOX. This prepared G4.0-PAMAM@HEP mPEG nanocarrier can be a potential candidate for drug delivery systems with high loading capacity and low systemic toxicity in cancer therapy. PMID- 29025662 TI - Synthesis and characterization of a novel double cross-linked hydrogel based on Diels-Alder click reaction and coordination bonding. AB - Hydrogels, promising biological materials, need to have both strong mechanical properties and also inherent self-healing properties. In this work a double cross linked network (DN) hydrogel was designed and prepared by combining a Diels-Alder click reaction and coordination effects. This DN hydrogel had good thermodynamic properties, anti-EDTA performance and self-healing properties. In addition, the mechanical properties, swelling properties and surface morphology of DN hydrogels can be controlled by adjusting the ratio of Fe3+-catechol. The adjustment of pH value can change the color, crosslinking mode and mechanical properties of the DN hydrogel. This smart hydrogel created from DA click chemistry and coordination effects has significance for guiding the design of new hydrogels with good mechanical properties, self-healing properties and controlled cross-link density. PMID- 29025663 TI - Self-assembly of bacitracin-gold nanoparticles and their toxicity analysis. AB - As the widely use of gold nanoparticles (AuNPs) in drug delivery, the precise control on the size and morphology of the AuNPs is urgently required. In this scenario, traditional synthesis methods cannot meet current requirement because of their inherent defects. We have depicted here a novel method for fabricating monodispersed large size gold nanoparticles, based on the self-assembly of bacitracin. The AuNPs could be facilely, low-cost, and green synthesized with repeatability and controllability in this method. The Bac gold nanoparticles (Bac AuNPs), composed by bacitracin core and gold shell, exhibited a spherical morphology in TEM and a face-centered cubic crystal structure in X-Ray diffraction and selected area electron diffraction. The mean diameter of the Bac AuNPs was 89nm. The nanoparticles were mono-dispersed and the zeta potential of the nanoparticles was 4.1+/-0.64mV. Notably, in cell viability assay, the Bac AuNPs showed less toxicity to HepG2 cells and HEK293 cells compared to small size AuNPs. Collectively, the size, rheological characteristic and the biocompatibility supported the use of the gold nanoparticles as intracellular delivery vehicles for drug delivery, especially for tumor therapy. And this study could provide a maneuverable, controllable and green strategy for the synthesis of AuNPs, which would be applied in disease diagnosis and therapy with biosafety. PMID- 29025664 TI - Preparation and characterization of gellan gum/glucosamine/clioquinol film as oral cancer treatment patch. AB - To administer cancer drugs with improved convenience to patients and to enhance the bioavailability of cancer drugs for oral cancer therapy, this study prepared gellan gum/glucosamine/clioquinol (GG/GS/CQ) film as the oral cancer treatment patch. GG/GS/CQ film fabricated through the EDC-mediated coupling reactions (GG/GS/CQ/EDC film). The film of the physicochemical properties and drug release kinetics were studied. The effectiveness of GG/GS/CQ/EDC film as oral cancer treatment patch were evaluated with the animal model. The results confirmed that CQ can be incorporated via EDC-mediated covalent conjugation to gellan gum/glucosamine. Mechanical testing revealed that the maximum tensile strength and elongation percentage at break were 1.91kgf/mm2 and 5.01% for GG/GS/CQ/EDC film. After a drug release experiment lasting 45days, 86.8% of CQ was released from GG/GS/CQ/EDC film. The Huguchi model fit the GG/GS/CQ/EDC drug release data with high correlation coefficients (R2=0.9994, respectively). The effect of the CQ dose on oral cancer cells (OC-2) was tested, and the IC50 of CQ alone and CQ with 10MUM CuCl2 were 9.59 and 2.22MUM, respectively. The animal testing indicated that GG/GS/CQ/EDC film was decreased epidermal growth factor receptor (EGFR) expression and suppress tumor progression. These findings provide insights into a possible use for GG/GS/CQ/EDC film for oral ca in clinical practice. The GG/GS/CQ/EDC film is suitable as the dressing for use in the treatment of early stage cancer or as wound care after surgery in late-stage of oral cancer treatment. PMID- 29025665 TI - Cell attachment evaluation of the immobilized bioactive peptide on a nanographene oxide composite. AB - The immobilization of bioactive peptides as key molecules in numerous biological and physiological functions holds promise for designing advanced biomaterials. Graphene and its derivatives, having unique physicochemical properties, have brought considerable attention in the life sciences. In this regard, the chemical manipulation of the graphene surface with bioactive peptides opens a new horizon to design bioactive materials for a variety of future nanobiotechnologies. In this study, the first straightforward strategy for the covalent immobilization of the cell-adhesion peptide onto the graphene surface based on the Ugi four component assembly process (Ugi 4-CAP) will be presented. The modified adhesion motif peptide, as an amine component in the presence of formaldehyde, cyclohexylisocyanide and carboxylated-graphene (G-COOH), was adopted in a four component reaction to fabricate a peptide-graphene (Peptide-G) biomaterial in water as a green solvent at an ambient temperature. The amino functional groups corresponded to the modified adhesion motif peptide and were immobilized onto the graphene sheets, which were quantified by the Kaiser test. The sheets were characterized by further analyses with FT-IR, AFM, UV-vis, Raman and thermogravimetric analyses. The Peptide-G biomaterial showed excellent biocompatibility. In addition, the Peptide-G treated surface, due to the presence of RGD on the surface of the graphene, significantly accelerated the proliferation of human mesenchymal stem cells (hMSCs) at a better rate regarding the tissue plate. PMID- 29025666 TI - Comprehensive assessment of electrospun scaffolds hemocompatibility. AB - Biodegradable polyesters, namely polycaprolactone (PCL) and copolymer of polylactide and polycaprolactone (PLCL) were electrospun into various fibrous structures and their hemocompatibility was evaluated in vitro. Firstly, hemolytic effect was evaluated upon incubation with diluted whole blood. The results showed that the degree of hemolysis depended on chemical composition and fibrous morphology. Electrospun polycaprolactone induced slight degree of hemolysis depending on its molecular weight and fibrous morphology; copolymer PLCL did not cause detectable hemolysis. The influence of coagulation pathways was examined by measurement of coagulation times. It was showed that intrinsic coagulation pathway assessed by activated partial thromboplastin time (APTT) was moderately accelerated after incubation with PCL and prolonged after incubation with copolymer PLCL. Extrinsic activation of coagulation tested by prothrombin time (PT) was slightly accelerated after incubation with all tested electrospun samples. Thrombogenicity assessment of fibrous samples revealed high thrombogenic properties of fibrous materials that was comparable to high degree of collagen thrombogenicity. The level of platelet activation was dependent on chemical composition and surface morphology of tested materials. PMID- 29025667 TI - Adhesion forces of biofilms developed in vitro from clinical strains of skin wounds. AB - A biofilm is a very complex consortium formed by a mix of different microorganisms, which have become an important health problem, because its formation is a resistance mechanism used by bacteria against antibiotics or the immune system. In this work, we show differences between some physicochemical properties of biofilms in mono- and multi-species, formed by bacteria from clinical samples of infected chronic wounds. Of the most prevalent bacteria in wounds, two mono- and one multi-species biofilms were developed in vitro by Drip Flow Reactor: one biofilm was developed by S. aureus, other by P. aeruginosa, and a third one by the mix of both strains. With these biofilms, we determined microbial growth by plate counting, and their physicochemical characterization by Atomic Force Microscopy, Raman Micro-Spectroscopy and Scanning Electron Microscopy. We found that the viability of S. aureus was less than P. aeruginosa in multi-species biofilm. However, the adhesion force of S. aureus is much higher than that of P. aeruginosa, but it decreased while that of P. aeruginosa increased in the multi-species biofilm. In addition, we found free pyrimidines functional groups in the P. aeruginosa biofilm and its mix with S. aureus. Surprisingly, each bacterium alone formed single layer biofilms, while the mix bacteria formed a multilayer biofilm at the same observation time. Our results show the necessity to evaluate biofilms from clinically isolated strains and have a better understanding of the adhesion forces of bacteria in biofilm multispecies, which could be of prime importance in developing more effective treatments against biofilm formation. PMID- 29025668 TI - Sustained raloxifene release from hyaluronan-alendronate-functionalized titanium nanotube arrays capable of enhancing osseointegration in osteoporotic rabbits. AB - To enhance the localized bone remodeling at titanium-based implants under osteoporotic conditions, TiO2 nanotube arrays (TNT) were used as nanoreserviors for raloxifene (Ral) and then covered with the hybrid multilayered coating of chitosan and alendronate grafted hyaluronic acid (HA-Aln) via a spin-assisted layer-by-layer technique. The fabrication of this system (TNT/Ral/LBL-Aln) was characterized by field emission scanning electron microscopy (SEM), atomic force microscope (AFM) and X-ray photoelectron spectroscopy (XPS), respectively. The release test showed that the composited multilayers onto Ral-loaded TiO2 nanotube substrate (TNT/Ral) could prevent the burst release of Ral from TiO2 nanotube arrays and maintain stable Ral concentration at the implant site even after 192h. The TNT/Ral/LBL-Aln system demonstrated higher alkaline phosphatase (ALP) activity, mineralization capability in osteoblasts as well as lower tartrate resistant acid phosphatase (TRAP) activity in osteoclasts compared to both bare TiO2 nanotube and TNT/Ral substrate, respectively. Moreover, the in vivo tests of micro-CT, histological staining and push-out testing showed that TNT/Ral/LBL-Aln implant could efficiently enhance the formation of new bone around the implant and promote bone binding in osteoporotic rabbits. The study indicated the potential application of TNT/Ral/LBL-Aln system for bone remodeling under osteoporotic condition. PMID- 29025669 TI - Preparation and evaluation of squid ink polysaccharide-chitosan as a wound healing sponge. AB - A new type of wound healing agent was developed using two marine biomaterials (squid ink polysaccharide and chitosan) as carriers and calcium chloride as an initiator for coagulation. Based on central composite design-response surface methodology, comprehensive evaluation of appearance quality for composite sponges and water absorbency were used as evaluation indices to identify the optimized preparation conditions and further evaluate the performance of the squid ink polysaccharide-chitosan sponge (SIP-CS). The optimized formulation of SIP-CS was as follows: chitosan concentration, 2.29%; squid ink polysaccharide concentration, 0.55%; and calcium chloride concentration, 2.82%, at a volume ratio of 15:5:2. SIP-CS was conducive to sticking on the wound, characterized by the spongy property, strong absorptivity, and tackiness. Rabbit ear arterial, hepatic, and femoral artery hemorrhage experiments indicated that, compared with chitosan dressings and absorbable gelatin, the hemostatic times were shorter and the bleeding volume was smaller. Furthermore, SIP-CS absorbed a large amount of hemocytes, leading to rapid hemostasis. The healing areas and wound pathological sections in scalded New Zealand rabbits indicated that SIP-CS promoted wound healing more rapidly than chitosan and better than commercially available burn cream. Thus, SIP-CS is a good wound healing agent for rapid hemostasis, promoting burn/scalded skin healing, and protecting from wound infection. PMID- 29025670 TI - Bone regeneration: Biomaterials as local delivery systems with improved osteoinductive properties. AB - Bone is a mineralized conjunctive tissue, with a unique trauma healing capability. However, the replacement or regeneration of lost bone is not always successful and becomes more difficult the wider the bone defect. A significant growth in the demand for orthopedic and maxillofacial surgical procedures as a result of population aging and increase in chronic diseases as diabetes is a fact and successful approaches for bone regeneration are still needed. Until today, autogenous bone graft continues to be the best solution even with important limitations, as quantity and the requirement of a donator area. Alternatively, local delivery systems combining an osteoconductive biomaterial with osteoinductive compounds as hormones, growth factors or drugs is a popular approach aiming to replace the need for autogenous bone grafts. Nevertheless, in spite of the intense research in the area, presently there is no system that can mimic all the biological functions of the autogenous bone grafts. In this context, the present work provides an overview of the most recent advances in the field of synthetic bone grafts. The opportunities and limitations are detailed along with the remaining gaps in the research that are still preventing the successful translation of more products into the market able to be a valuable option in comparison to the autogenous bone grafts. PMID- 29025671 TI - In situ and ex situ modifications of bacterial cellulose for applications in tissue engineering. AB - Bacterial cellulose (BC) is secreted by a few strains of bacteria and consists of a cellulose nanofiber network with unique characteristics. Because of its excellent mechanical properties, outstanding biocompatibilities, and abilities to form porous structures, BC has been studied for a variety of applications in different fields, including the use as a biomaterial for scaffolds in tissue engineering. To extend its applications in tissue engineering, native BC is normally modified to enhance its properties. Generally, BC modifications can be made by either in situ modification during cell culture or ex situ modification of existing BC microfibers. In this review we will first provide a brief introduction of BC and its attributes; this will set the stage for in-depth and up-to-date discussions on modified BC. Finally, the review will focus on in situ and ex situ modifications of BC and its applications in tissue engineering, particularly in bone regeneration and wound dressing. PMID- 29025672 TI - Corrigendum to "Effect of low-intensity pulsed ultrasound on the biological behavior of osteoblasts on porous titanium alloy scaffolds: An in vitro and in vivo study" [Mater. Sci. Eng. C 80 (2017) 7-17]. PMID- 29025673 TI - Effects of cetyltrimethylammonium bromide on the morphology of green synthesized Fe3O4 nanoparticles used to remove phosphate. AB - In this paper, iron oxide nanoparticles (IONPs) are successfully synthesized using Eucalyptus leaf extract in the presence of cetyltrimethylammonium bromide (CTAB) to enhance the dispersion and reduce aggregation of IONPs. CTAB was used as a stabilizing and capping agent in biosynthesis of IONP was observed. The particle size decreased from 183.9+/-30.1nm to 89.8+/-17.1nm as the concentration of CTAB increased from 0 to 0.4mM CTAB, indicating that CTAB reduce the aggregation of IONPs and enhance the reactivity. In addition, the removal efficiency of phosphate declined from 95.13% to 89.58% when the CTAB concentration increased from 0.4 to 10mM, indicating that a CTAB impacted on micelles and lipophilic biomolecules in Eucalyptus leaf extract, and hence affected the formation of IONPs. Furthermore, SEM image showed that the smaller spherical with some irregularly shaped CTAB-IONPs having a diameter of 80-90nm in the presence of 0.4mM CTAB were observed. The date from EDS, FTIR and TGA suggested that the CTAB capped on the surface of CTAB-IONPs, while XRD showed that zero-valent iron and iron oxide were formed. Finally, the formation mechanism of IONPs was proposed. PMID- 29025674 TI - Green synthesis of ZnO and Cu-doped ZnO nanoparticles from leaf extracts of Abutilon indicum, Clerodendrum infortunatum, Clerodendrum inerme and investigation of their biological and photocatalytic activities. AB - In the present study, green synthesis and determination of the antioxidant, antibacterial, antifungal, anticancer and photocatalytic properties of the resultant Cu-doped zinc oxide nanoparticles (NAPs) were carried out. A superficial method (solution combustion method) was employed for the synthesis of un-doped ZnO NAPs from aqueous extract of Abutilon indicum, and synthesis of Cu doped ZnO NAPs from aqueous extracts of Clerodendrum infortunatum (M1 NAPs) and Clerodendrum inerme (M2 NAPs). The synthesized un-doped ZnO, M1 and M2 NAPs were characterized by different spectroscopic techniques like Ultraviolet-visible (UV Vis), Fourier Transform-Infrared (FT-IR), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and scanning electron microscopy (SEM). The antibacterial and antifungal activities of M1 and M2 NAPs were determined by agar diffusion method, while their antioxidant properties were assessed through DPPH radical scavenging and ferric thiocyanate (FTC) and assays. Under sunlight irradiation, photocatalytic disintegration potential of M1 and M2 NAPs were determined by the degradation of Acid Black 234 dye. Results from FT-IR, XRD, EDX and SEM confirmed successful synthesis, crystalline nature, and spheroid-to-rod like shapes of un-doped ZnO, M1 and M2 NAPs, with grain sizes of 16.72nm, 17.49nm and 20.73nm; and band gap energies of 3.37eV, 3.36eV and 3.31eV, respectively. The NAPs were good catalysts for effective degradation of Acid Black 234. They also exhibited remarkable antioxidant and anticancer activities. Significant antibacterial activity was shown by M2 NAPs against E. coli, S. aureus, Klebsiella and B. subtilis, with zones of inhibition (ZOIs) of 13+/-0.09, 14+/ 0.01, 18+/-0.07 and 20+/-0.10, respectively. Significant antifungal potential was also produced by M2 NAPs at 5mg with ZOIs of 17+/-0.07 and 24+/-0.08 against A. niger and T. harzianum, respectively. These results indicate that aqueous extracts of A. indicum, C. infortunatum and C. inerme are effective reducing agents for green synthesis of un-doped ZnO, and Cu-doped ZnO NAPs with significant antimicrobial, antioxidant, and antifungal potential. Thus they are good candidates for future therapeutic applications. PMID- 29025675 TI - Acetal-linked PEGylated paclitaxel prodrugs forming free-paclitaxel-loaded pH responsive micelles with high drug loading capacity and improved drug delivery. AB - Endosomal pH-responsive micellar nanoparticles were prepared by self-assembly of an amphiphilic poly(ethylene glycol)-acetal-paclitaxel (PEG-acetal-PTX) prodrug, and free PTX could be encapsulated in the hydrophobic core of the nanoparticles. These nanoparticles exhibited excellent storage stability for over 6months under normal conditions, but disassembled quickly in response to faintly acidic environment. Incorporating physical encapsulation and chemical conjugation, the PTX concentration in the nanoparticles solution could reach as high as 3665MUg/mL, accompanying with a high drug loading capacity of 60.3%. Additionally, benefitting from the difference in drug release mechanism and rate between encapsulated PTX and conjugated PTX, a programmed drug release behavior was observed, which may result in higher intracellular drug concentration and longer action time. CCK-8 assays showed that the nanoparticles demonstrated superior antitumor activity than free PTX against both HeLa and MDA-MB-231 cells. These prodrug-based nanomedicines have a great potential in developing translational PTX formulations for cancer therapy. PMID- 29025676 TI - A simple and efficient feeder-free culture system to up-scale iPSCs on polymeric material surface for use in 3D bioprinting. AB - The 3D bioprinting and cell/tissue printing techniques open new possibilities for future applications. To facilitate the 3D bioprinting process, a large amount of living cells are required. Induced pluripotent stem cells (iPSCs) represent a promising cell source for bioprinting. However, the maintenance and expansion of undifferentiated iPSCs are expensive and time consuming. Therefore, in this study a culture method to obtain a sufficient amount of healthy and undifferentiated iPSCs in a short-term period was established. The iPSCs could be passaged for twice on tissue culture polystyrene (TCPS) dish with the conditional medium and could adapt to the feeder-free environment. Feeder-free dishes were further prepared from chitosan, chitosan-hyaluronan, silk fibroin, and polyurethane (PU1 and PU2) two-dimensional substrates. The iPSCs cultured on the chitosan substrates showed a higher proliferation rate without losing the stemness feature. Among the different materials, PU2 could be prepared as a thermoresponsive hydrogel, which was a potential ink for 3D bioprinting. The iPSCs cultured on PU2 substrates well survived when further embedded in PU2 hydrogel. Moreover, PU2 hydrogel printed with iPSCs remained structural integrity. The use of PU2 hydrogel to embed iPSCs reduced the injury to iPSCs by shear stress. These results indicate that iPSCs could be expanded on chitosan or PU2 membranes without the feeder layer and then printed in PU2 hydrogel. The combination of these steps could offer a new possibility for future applications of iPSC-based 3D bioprinting in tissue engineering. PMID- 29025677 TI - Degradation of glutamate-based organogels for biodegradable implants: In vitro study and in vivo observation. AB - Degradation properties play a vital role in long-term in situ drug delivery systems. In vitro degradation behaviours of organogels were investigated via two approaches in this study: a weight loss method and a drug release method. Through the two methods, parameters that affect the degradation of organogels (such as gelator type, gelator concentration and oil type) were systematically tested under a lipase solution to better mimic in vivo circumstances. The gelator structure had the greatest influence on degradation behaviour. By regulating the parameters that influence degradation, the drug release method can properly predict in vivo degradation. Our investigation of organogel degradation provides a theoretical basis for in vivo organogel use as a biodegradable in situ implant for drug delivery. PMID- 29025678 TI - Effect of crystalline phase changes in titania (TiO2) nanotube coatings on platelet adhesion and activation. AB - OBJECTIVE: To explore the relationship between various crystalline phases of titania (TiO2) nanotube (TNT) coatings and platelet adhesion and activation. METHODS: TNT coatings were fabricated on pure titanium foils by anodization and then randomly divided into four groups. Three groups were annealed at 350 degrees C, 450 degrees C and 550 degrees C in order to obtain different crystalline phases. The remaining group was not annealed and served as the control group. X ray diffraction (XRD) was used to define the crystalline phases of different groups. Surface morphology, elemental composition, surface roughness, and contact angles were measured by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), laser scanning confocal microscopy (LSCM) and contact angle analysis, respectively. Platelets were cultured on the TNT coatings for 30min and 60min to assess the number, viability, distribution, and morphology of the adhered platelets. CD62P fluorescence expression and the amount of released platelet-derived growth factor (PDGF) were detected to evaluate platelet activation. RESULTS: The un-annealed TNT coatings were amorphous and part of TNT converted to anatase after the 350 degrees C annealing treatment. The quantity of anatase increased upon annealing at 450 degrees C and transformed to rutile at 550 degrees C. Nanotubes of all four groups maintained a well-ordered structure, but the wall thickness of the nanotubes increased from (11.874+/-1.660) nm for the un-annealed TNTs to (26.126+/-2.130) nm for the 550 degrees C annealed TNTs. The surface roughness of the 550 degrees C annealed TNT coatings was the lowest and the water contact angle was the largest at (28.117+/-1.182) degrees . The number and viability of adhered platelets after 30min and 60min were the highest on TNT coatings annealed at 450 degrees C. LSCM and SEM images revealed that the platelets that adhered on the 450 degrees C annealed TNT coatings aggregated, transformed, and spread most obviously. CD62P fluorescence expression results showed that the platelets on the 350 degrees C and 450 degrees C annealed TNT coating groups expressed the strongest fluorescence, followed by platelets on the 550 degrees C annealed group and the un-annealed group. The quantity of released PDGF was highest for the 450 degrees C annealed group at (4719+/-86) pg/mL, and lowest for the un-annealed group at (4241+/-74) pg/mL. CONCLUSION: Crystalline TNT coatings encourage improved platelet adhesion and activation over amprphous analogues. The TNT coatings annealed at 450 degrees C resulted in the most improved platelet behavior. The TNT crystalline phase was the predominant influencing factor in platelet adhesion and activation. PMID- 29025679 TI - Relation of Residual Mitral Regurgitation Despite Elevated Mitral Gradients to Risk of Heart Failure Hospitalization After MitraClip Repair. AB - Achieving minimal residual mitral regurgitation (MR) after percutaneous MitraClip repair is limited by iatrogenic mitral stenosis. It is unknown whether allowing moderately elevated postprocedural mean mitral gradients (MMGs) to achieve < moderate residual MR is preferable to moderate residual regurgitation. Patients with less-than-moderate residual MR but a MMG of >=5 mm Hg (Group 1) were compared with patients with moderate residual MR (Group 2). The primary end point was heart failure hospitalization. Secondary end points included mortality, subsequent mitral valve surgery, and MR at 1 year. Seventy-eight patients were included in the study. Group 1 included 48 patients (median MMG 6, interquartile range 5-6 mm Hg). Group 2 included 30 patients (median MMG 3.5, interquartile range 2-5 mm Hg). Age, baseline MR severity, and type of MR were not different between groups. Freedom from heart failure hospitalization at 1 year was 91.2 +/- 4.2% in Group 1 versus 70.8 +/- 8.7% in Group 2 (p = 0.021). Achieved differences in MR reduction between groups persisted at 1 year (p = 0.007). Survival was not different (p = 0.402), and subsequent mitral valve surgery occurred in 4 of 48 (8%) and in 4 of 30 patients (13%) in Group 1 and Group 2, respectively (p = 0.476). By multivariate Cox regression analysis, less-than-moderate residual MR, despite moderately elevated mitral gradients, was associated with a hazard ratio of 0.21 (95% confidence interval 0.04 to 0.96) for subsequent heart failure hospitalization (p = 0.044). In conclusion, patients with less-than-moderate residual MR despite a MMG of >=5 had a 79% reduction in hazard for subsequent heart failure hospitalization compared with patients with moderate residual MR. PMID- 29025680 TI - Disorganization of the Retinal Inner Layers as a Predictor of Visual Acuity in Eyes With Macular Edema Secondary to Vein Occlusion. PMID- 29025681 TI - Physician Assistants and Nurse Practitioners in Ophthalmology-Has the Time Come? PMID- 29025682 TI - Corrigendum to "High-temperature EBPR process: The performance, analysis of PAOs and GAOs and the fine-scale population study of Candidatus "Accumulibacter phosphatis"" [Water Res. 64 (2014) 102-112]. PMID- 29025683 TI - Corrigendum to "The implications of drought and water conservation on the reuse of municipal wastewater: Recognizing impacts and identifying mitigation possibilities" [Water Res. 124 (2017), 472-481]. PMID- 29025684 TI - Ninety-Day Readmission and Long-Term Mortality in Medicare Patients (>=65 Years) Treated With Ticagrelor Versus Prasugrel After Percutaneous Coronary Intervention (from the Blue Cross Blue Shield of Michigan Cardiovascular Consortium). AB - Ticagrelor and prasugrel were found to be superior to clopidogrel for the treatment of acute coronary syndrome (ACS) after percutaneous coronary intervention (PCI); however, the comparative effectiveness of these 2 drugs remains unknown. We compared postdischarge outcomes among older patients treated with ticagrelor versus prasugrel after PCI for ACS. We linked clinical data from PCIs performed in older patients (age >=65) for ACS at 47 Michigan hospitals to Medicare fee-for-service claims from January 1, 2013, to December 31, 2014, to ascertain rates of 90-day readmission and long-term mortality. We used propensity score matching to adjust for the nonrandom use of ticagrelor and prasugrel at discharge. Logistic regression and Cox proportional hazards models were used to compare rates of 90-day readmission and long-term mortality, respectively. Patients discharged on ticagrelor (n = 1,243) were more frequently older, female, had a history of cerebrovascular disease, and presented with ST- or non-ST elevation myocardial infarction compared with prasugrel (n = 1,014). After matching (n = 756 per group), there were no significant differences in the rates of 90-day readmission (16.7% ticagrelor vs 14.6% prasugrel; adjusted odds ratio 1.15, 95% confidence interval 0.86 to 1.55, p = 0.35) or 1-year mortality (5.4% ticagrelor vs 3.7% prasugrel; hazard ratio 1.3, 95% confidence interval 0.8 to 2.2, p = 0.31). In conclusion, we found no significant differences in the rates of 90-day readmission or long-term mortality between older patients treated with ticagrelor and patients treated with prasugrel after PCI for ACS. In the absence of randomized data to the contrary, these 2 treatments appear similarly effective. PMID- 29025686 TI - [Usefulness of spectral tissue Doppler (E/e' ratio) in the management of patients with atrial fibrillation]. AB - Atrial fibrillation is the most common cardiac rhythm disorder encountered in daily clinical practice. It carries high morbidity and mortality rates, mainly related to sudden death, heart failure and stroke. Validation of noninvasive markers in the diagnosis of heart failure with preserved ejection fraction and risk stratification is therefore attractive in this clinical setting. The spectral tissue Doppler-derived E/e' ratio is a simple and user-friendly index which has been validated in the assessment of left ventricular diastolic pressures, regardless of rhythm. A septal E/e' >11 is associated with invasive left ventricular diastolic pressures >15mmHg in patients with atrial fibrillation. Several studies have reported the clinical relevance of abnormal values of E/e' at rest and during exercise in the diagnosis and risk stratification of heart failure with preserved ejection fraction in patients with atrial fibrillation. There is now convincing evidence that increased E/e' is associated with adverse outcome in patients with atrial fibrillation and predicts the recurrence of arrhythmia after cardioversion or catheter ablation. In conclusion, we recommend the measurement of E/e' in each patient with atrial fibrillation referred for clinically indicated transthoracic Doppler echocardiography. PMID- 29025685 TI - Generalization of learned pain modulation depends on explicit learning. AB - The experience of pain is strongly influenced by contextual and socio-affective factors, including learning from previous experiences. Pain is typically perceived as more intense when preceded by a conditioned cue (CSHIGH) that has previously been associated with higher pain intensities, compared to cues associated with lower intensities (CSLOW). In three studies (total N=134), we tested whether this learned pain modulation generalizes to perceptually similar cues (Studies 1 and 2) and conceptually similar cues (Study 3). The results showed that participants report higher pain when heat stimulation was preceded by novel stimuli that were either perceptually (Studies 1 and 2) or conceptually (Study 3) similar to the previously conditioned CSHIGH. In all three studies, the strength of this generalization effect was strongly correlated with individual differences in explicitly learned expectations. Together, these findings suggest an important role of conscious expectations and higher-order conceptual inference during generalization of learned pain modulation. We discuss implications for the understanding of placebo and nocebo effects as well as for chronic pain and anxiety. PMID- 29025688 TI - Altered Medial Frontal Feedback Learning Signals in Anorexia Nervosa. AB - BACKGROUND: In their relentless pursuit of thinness, individuals with anorexia nervosa (AN) engage in maladaptive behaviors (restrictive food choices and overexercising) that may originate in altered decision making and learning. METHODS: In this functional magnetic resonance imaging study, we employed computational modeling to elucidate the neural correlates of feedback learning and value-based decision making in 36 female patients with AN and 36 age-matched healthy volunteers (12-24 years). Participants performed a decision task that required adaptation to changing reward contingencies. Data were analyzed within a hierarchical Gaussian filter model that captures interindividual variability in learning under uncertainty. RESULTS: Behaviorally, patients displayed an increased learning rate specifically after punishments. At the neural level, hemodynamic correlates for the learning rate, expected value, and prediction error did not differ between the groups. However, activity in the posterior medial frontal cortex was elevated in AN following punishment. CONCLUSIONS: Our findings suggest that the neural underpinning of feedback learning is selectively altered for punishment in AN. PMID- 29025687 TI - Serine Racemase and D-serine in the Amygdala Are Dynamically Involved in Fear Learning. AB - BACKGROUND: The amygdala is a central component of the neural circuitry that underlies fear learning. N-methyl-D-aspartate receptor-dependent plasticity in the amygdala is required for pavlovian fear conditioning and extinction. N-methyl D-aspartate receptor activation requires the binding of a coagonist, D-serine, which is synthesized from L-serine by the neuronal enzyme serine racemase (SR). However, little is known about SR and D-serine function in the amygdala. METHODS: We used immunohistochemical methods to characterize the cellular localization of SR and D-serine in the mouse and human amygdala. Using biochemical and molecular techniques, we determined whether trace fear conditioning and extinction engages the SR/D-serine system in the brain. D-serine was administered systemically to mice to evaluate its effect on fear extinction. Finally, we investigated whether the functional single nucleotide polymorphism rs4523957, which is an expression quantitative trait locus of the human serine racemase (SRR) gene, was associated with fear-related phenotypes in a highly traumatized human cohort. RESULTS: We demonstrate that approximately half of the neurons in the amygdala express SR, including both excitatory and inhibitory neurons. We find that the acquisition and extinction of fear memory engages the SR/D-serine system in the mouse amygdala and that D-serine administration facilitates fear extinction. We also demonstrate that the SRR single nucleotide polymorphism, rs4523957, is associated with posttraumatic stress disorder in humans, consistent with the facilitatory effect of D-serine on fear extinction. CONCLUSIONS: These new findings have important implications for understanding D-serine-mediated N-methyl-D-aspartate receptor plasticity in the amygdala and how this system could contribute to disorders with maladaptive fear circuitry. PMID- 29025689 TI - SOHO State of the Art Update and Next Questions: Biology and Treatment of Myelodysplastic Syndromes. AB - Myelodysplastic syndromes (MDS) are a heterogeneous group of myeloid neoplasms characterized by clonal hematopoiesis leading to bone marrow dysplasia and cytopenias. Recently, significant advancements have been made in understanding the pathogenic mechanisms of this disease. In particular, how a wide array of somatic mutations can induce a common clinical phenotype has been investigated. Specifically, activation of innate immune signaling (i.e. myeloid derived suppressor cells) and the NLRP3 inflammasome in hematopoietic stem/progenitor cells play a central role in the biology of MDS, leading to pyroptotic cell death and clonal expansion. Additionally, deciphering the molecular drivers of MDS using next-generation sequencing has rapidly expanded our understanding of MDS with profound implications for prognosis, treatment decisions, and future clinical investigations. Together, unraveling of the role of innate immunity/pyroptosis in the clinical phenotype of MDS patients and comprehensive molecular characterization has identified novel therapeutic strategies that offer significant promise. PMID- 29025690 TI - Discussion of: "Addressing the quality and cost of cholecystectomy at a safety net hospital". PMID- 29025692 TI - Prevalence of Actinic Keratosis in Different Regions of Spain: The EPIQA Study. PMID- 29025691 TI - Morphea and Extragenital Lichen Sclerosus et Atrophicus After Influenza Vaccination. PMID- 29025694 TI - Desire to Be Underweight: Exploratory Study on a Weight Loss App Community and User Perceptions of the Impact on Disordered Eating Behaviors. AB - BACKGROUND: Mobile health (mHealth) apps for weight loss (weight loss apps) can be useful diet and exercise tools for individuals in need of losing weight. Most studies view weight loss app users as these types of individuals, but not all users have the same needs. In fact, users with disordered eating behaviors who desire to be underweight are also utilizing weight loss apps; however, few studies give a sense of the prevalence of these users in weight loss app communities and their perceptions of weight loss apps in relation to disordered eating behaviors. OBJECTIVE: The aim of this study was to provide an analysis of users' body mass indices (BMIs) in a weight loss app community and examples of how users with underweight BMI goals perceive the impact of the app on disordered eating behaviors. METHODS: We focused on two aspects of a weight loss app (DropPounds): profile data and forum posts, and we moved from a broader picture of the community to a narrower focus on users' perceptions. We analyzed profile data to better understand the goal BMIs of all users, highlighting the prevalence of users with underweight BMI goals. Then we explored how users with a desire to be underweight discussed the weight loss app's impact on disordered eating behaviors. RESULTS: We found three main results: (1) no user (regardless of start BMI) starts with a weight gain goal, and most users want to lose weight; (2) 6.78% (1261/18,601) of the community want to be underweight, and most identify as female; (3) users with underweight BMI goals tend to view the app as positive, especially for reducing bingeing; however, some acknowledge its role in exacerbating disordered eating behaviors. CONCLUSIONS: These findings are important for our understanding of the different types of users who utilize weight loss apps, the perceptions of weight loss apps related to disordered eating, and how weight loss apps may impact users with a desire to be underweight. Whereas these users had underweight goals, they often view the app as helpful in reducing disordered eating behaviors, which led to additional questions. Therefore, future research is needed. PMID- 29025693 TI - Characterizing Active Ingredients of eHealth Interventions Targeting Persons With Poorly Controlled Type 2 Diabetes Mellitus Using the Behavior Change Techniques Taxonomy: Scoping Review. AB - BACKGROUND: The behavior change technique taxonomy v1 (BCTTv1; Michie and colleagues, 2013) is a comprehensive tool to characterize active ingredients of interventions and includes 93 labels that are hierarchically clustered into 16 hierarchical clusters. OBJECTIVE: The aim of this study was to identify the active ingredients in electronic health (eHealth) interventions targeting patients with poorly controlled type 2 diabetes mellitus (T2DM) and relevant outcomes. METHODS: We conducted a scoping review using the BCTTv1. Randomized controlled trials (RCTs), studies with or pre-post-test designs, and quasi experimental studies examining efficacy and effectiveness of eHealth interventions for disease management or the promotion of relevant health behaviors were identified by searching PubMed, Web of Science, and PsycINFO. Reviewers independently screened titles and abstracts for eligibility using predetermined eligibility criteria. Data were extracted following a data extraction sheet. The BCTTv1 was used to characterize active ingredients of the interventions reported in the included studies. RESULTS: Of the 1404 unique records screened, 32 studies fulfilled the inclusion criteria and reported results on the efficacy and or or effectiveness of interventions. Of the included 32 studies, 18 (56%) were Web-based interventions delivered via personal digital assistant (PDA), tablet, computer, and/or mobile phones; 7 (22%) were telehealth interventions delivered via landline; 6 (19%) made use of text messaging (short service message, SMS); and 1 employed videoconferencing (3%). Of the 16 hierarchical clusters of the BCTTv1, 11 were identified in interventions included in this review. Of the 93 individual behavior change techniques (BCTs), 31 were identified as active ingredients of the interventions. The most common BCTs identified were instruction on how to perform behavior, adding objects to the environment, information about health consequences, self-monitoring of the outcomes and/or and prefers to be explicit to avoid ambiguity. Response: Checked and avoided of a certain behavior Author: Please note that the journal discourages the use of parenthesis to denote either and/or and prefers to be explicit to avoid ambiguity. Response: Checked and avoided "and/or" and prefers to be explicit to avoid ambiguity. Response: Checked and avoided, and feedback on outcomes of behavior. CONCLUSIONS: Our results suggest that the majority of BCTs employed in interventions targeting persons with T2DM revolve around the promotion of self-regulatory behavior to manage the disease or to assist patients in performing health behaviors necessary to prevent further complications of the disease. Detailed reporting of the BCTs included in interventions targeting this population may facilitate the replication and further investigation of such interventions. PMID- 29025695 TI - Exploring the Potential of a Wearable Camera to Examine the Early Obesogenic Home Environment: Comparison of SenseCam Images to the Home Environment Interview. AB - BACKGROUND: The obesogenic home environment is usually examined via self-report, and objective measures are required. OBJECTIVE: This study explored whether the wearable camera SenseCam can be used to examine the early obesogenic home environment and whether it is useful for validation of self-report measures. METHODS: A total of 15 primary caregivers of young children (mean age of child 4 years) completed the Home Environment Interview (HEI). Around 12 days after the HEI, participants wore the SenseCam at home for 4 days. A semistructured interview assessed participants' experience of wearing the SenseCam. Intraclass correlation coefficients (ICCs), percent agreement, and kappa statistics were used as validity estimates for 54 home environment features. RESULTS: Wearing the SenseCam was generally acceptable to those who participated. The SenseCam captured all 54 HEI features but with varying detail; 36 features (67%) had satisfactory validity (ICC or kappa >=0.40; percent agreement >=80 where kappa could not be calculated). Validity was good or excellent (ICC or kappa >=0.60) for fresh fruit and vegetable availability, fresh vegetable variety, display of food and drink (except sweet snacks), family meals, child eating lunch or dinner while watching TV, garden and play equipment, the number of TVs and DVD players, and media equipment in the child's bedroom. Validity was poor (ICC or kappa <0.40) for tinned and frozen vegetable availability and variety, and sweet snack availability. CONCLUSIONS: The SenseCam has the potential to objectively examine and validate multiple aspects of the obesogenic home environment. Further research should aim to replicate the findings in a larger, representative sample. PMID- 29025696 TI - Usability Test of Exercise Games Designed for Rehabilitation of Elderly Patients After Hip Replacement Surgery: Pilot Study. AB - BACKGROUND: Patients who receive rehabilitation after hip replacement surgery are shown to have increased muscle strength and better functional performance. However, traditional physiotherapy is often tedious and leads to poor adherence. Exercise games, provide ways for increasing the engagement of elderly patients and increase the uptake of rehabilitation exercises. OBJECTIVE: The objective of this study was to evaluate Fietsgame (Dutch for cycling game), which translates existing rehabilitation exercises into fun exercise games. The system connects exercise games with a patient's personal record and a therapist interface by an Internet of Things server. Thus, both the patient and physiotherapist can monitor the patient's medical status. METHODS: This paper describes a pilot study that evaluates the usability of the Fietsgame. The study was conducted in a rehabilitation center with 9 participants, including 2 physiotherapists and 7 patients. The patients were asked to play 6 exercise games, each lasting about 5 min, under the guidance of a physiotherapist. The mean age of the patients was 74.57 years (standard deviation [SD] 8.28); all the patients were in the recovery process after hip surgery. Surveys were developed to quantitatively measure the usability factors, including presence, enjoyment, pain, exertion, and technology acceptance. Comments on advantages and suggested improvements of our game system provided by the physiotherapists and patients were summarized and their implications were discussed. RESULTS: The results showed that after successfully playing the games, 75% to 100% of the patients experienced high levels of enjoyment in all the games except the squats game. Patients reported the highest level of exertion in squats when compared with other exercise games. Lunges resulted in the highest dropout rate (43%) due to interference with the Kinect v2 from support chairs. All the patients (100%) found the game system useful and easy to use, felt that it would be a useful tool in their further rehabilitation, and expressed that they would like to use the game in the future. The therapists indicated that the exercise games highly meet the criteria of motor rehabilitation, and they intend to continue using the game as part of their rehabilitation treatment of patients. Comments from the patients and physiotherapists suggest that real-time corrective feedback when patients perform the exercises wrongly and a more personalized user interface with options for increasing or decreasing cognitive load are needed. CONCLUSIONS: The results suggest that Fietsgame can be used as an alternative tool to traditional motor rehabilitation for patients with hip surgery. Lunges and squats are found to be more beneficial for patients who have relatively better balance skills. A follow up randomized controlled study will be conducted to test the effectiveness of the Fietsgame to investigate how motivating it is over a longer period of time. PMID- 29025697 TI - Predicting Consumer Effort in Finding and Paying for Health Care: Expert Interviews and Claims Data Analysis. AB - BACKGROUND: For consumers to accept and use a health care information system, it must be easy to use, and the consumer must perceive it as being free from effort. Finding health care providers and paying for care are tasks that must be done to access treatment. These tasks require effort on the part of the consumer and can be frustrating when the goal of the consumer is primarily to receive treatments for better health. OBJECTIVE: The aim of this study was to determine the factors that result in consumer effort when finding accessible health care. Having an understanding of these factors will help define requirements when designing health information systems. METHODS: A panel of 12 subject matter experts was consulted and the data from 60 million medical claims were used to determine the factors contributing to effort. RESULTS: Approximately 60 million claims were processed by the health care insurance organization in a 12-month duration with the population defined. Over 292 million diagnoses from claims were used to validate the panel input. The results of the study showed that the number of people in the consumer's household, number of visits to providers outside the consumer's insurance network, number of adjusted and denied medical claims, and number of consumer inquiries are a proxy for the level of effort in finding and paying for care. The effort level, so measured and weighted per expert panel recommendations, differed by diagnosis. CONCLUSIONS: This study provides an understanding of how consumers must put forth effort when engaging with a health care system to access care. For higher satisfaction and acceptance results, health care payers ideally will design and develop systems that facilitate an understanding of how to avoid denied claims, educate on the payment of claims to avoid adjustments, and quickly find providers of affordable care. PMID- 29025700 TI - Synergistic divergence: case series and literature review. AB - BACKGROUND: To present the data of a series of patients with synergistic divergence, to propose a different modality of surgical correction and to perform a literature review of such a rare entity. METHODS: A retrospective study was performed on all patients who presented with unilateral or bilateral synergistic divergence to the Ophthalmology Department, Cairo University, during the period from January 2007 to July 2016. The demographic data, the results of sensorimotor examination, the surgical procedures performed and the ophthalmological as well as the systemic findings of all patients were collected and tabulated. PubMed was searched for patients with features of synergistic divergence. RESULTS: Thirteen patients with features of synergistic divergence were identified. The mean age of the patients was 8.9+/-10.1 years (range 1-40 years). Only one case was orthotropic in the primary position. Lateral rectus orbital wall fixation combined with 8-10 mm medial rectus resection was done in 10 patients. The mean follow-up was 6.6+/-7.7 months. Exotropia was significantly reduced in all patients. All patients had complete disappearance of synergistic divergence after surgery. A total of 78 patients with features of synergistic divergence were identified from PubMed. Surgery was done for 37 patients. Synergistic divergence disappeared in patients who had lateral rectus extirpation or orbital wall fixation. CONCLUSION: Synergistic divergence is a challenging rare condition. We propose that lateral rectus orbital wall fixation combined with medial rectus resection both improves the alignment in primary position and eliminates the synergistic divergence in such patients. PMID- 29025699 TI - Adoption, Acceptability, and Effectiveness of a Mobile Health App for Personalized Prostate Cancer Survivorship Care: Protocol for a Realist Case Study of the Ned App. AB - BACKGROUND: By 2030, prostate cancer will be the most commonly diagnosed cancer in North America. To mitigate this impending challenge, comprehensive support mechanisms for disease- and treatment-specific changes in health and well-being must be proactively designed and thoughtfully implemented for streamlined survivorship care. mHealth apps have been lauded as a promising complement to current outpatient treatment and monitoring strategies, but have not yet been widely used to support prostate cancer survivorship needs. A realist evaluation is needed to examine the impact of such apps on the prostate cancer survivorship experience. OBJECTIVE: We seek to gain an understanding of how an mHealth app for prostate cancer survivorship care called Ned (No Evident Disease) is adopted and accepted by patients, caregivers, and clinicians. We also aim to determine the effect of Ned on health-related quality of life, satisfaction with cancer care, unmet needs, self-efficacy, and prostate cancer-related levels of anxiety. METHODS: The Ned case study is a 12-month mixed-methods embedded single-case study with a nested within-group pre-post comparison of health outcomes. We will give 400 patients, 200 caregivers, and 10 clinicians access to Ned. Participants will be asked to complete study assessments at baseline, 2 months, 6 months, and 12 months. We will conduct 30 semistructured qualitative interviews with patients (n=20) and their caregivers (n=10) poststudy to gain insight into their experience with the app. RESULTS: We recruited our first survivor in October 2017 and anticipate completing this study by May 2019. CONCLUSIONS: This will, to our knowledge, be the first realist case study to evaluate an app for prostate cancer survivorship care. Prostate cancer survivors are set to increase in number and longevity, heightening the need for integrated survivorship solutions to provide them with optimal and durable outcomes. The knowledge gained from this study will comprehensively inform how and why Ned works, for whom, and in what circumstances. Understanding the impact of digital health interventions such as Ned on how survivors care for themselves is critical to realizing patient centered care. PMID- 29025698 TI - College Freshmen Students' Perspectives on Weight Gain Prevention in the Digital Age: Web-Based Survey. AB - BACKGROUND: College freshmen are highly vulnerable to experiencing weight gain, and this phenomenon is associated with an increased risk of chronic diseases and mortality in older adulthood. Technology offers an attractive and scalable way to deliver behavioral weight gain prevention interventions for this population. Weight gain prevention programs that harness the appeal and widespread reach of Web-based technologies (electronic health or eHealth) are increasingly being evaluated in college students. Yet, few of these interventions are informed by college students' perspectives on weight gain prevention and related lifestyle behaviors. OBJECTIVE: The objective of this study was to assess college freshmen students' concern about weight gain and associated topics, as well as their interest in and delivery medium preferences for eHealth programs focused on these topics. METHODS: Web-based surveys that addressed college freshmen students' (convenience sample of N=50) perspectives on weight gain prevention were administered at the beginning and end of the fall 2015 semester as part of a longitudinal investigation of health-related issues and experiences in first semester college freshmen. Data on weight gain prevention-related concerns and corresponding interest in eHealth programs targeting topics of potential concern, as well as preferred program delivery medium and current technology use were gathered and analyzed using descriptive statistics. RESULTS: A considerable proportion of the freshmen sample expressed concern about weight gain (74%, 37/50) and both traditional (healthy diet: 86%, 43/50; physical activity: 64%, 32/50) and less frequently addressed (stress: 82%, 41/50; sleep: 74%, 37/50; anxiety and depression: 60%, 30/50) associated topics within the context of behavioral weight gain prevention. The proportion of students who reported interest in eHealth promotion programs targeting these topics was also generally high (ranging from 52% [26/50] for stress management to 70% [35/50] for eating a healthy diet and staying physically active). Email was the most frequently used electronic platform, with 96% (48/50) of students reporting current use of it. Email was also the most frequently cited preferred eHealth delivery platform, with 86% (43/50) of students selecting it. Facebook was preferred by the second greatest proportion of students (40%, 20/50). CONCLUSIONS: Most college freshmen have concerns about an array of weight gain prevention topics and are generally open to the possibility of receiving eHealth interventions designed to address their concerns, preferably via email compared with popular social media platforms. These preliminary findings offer a foundation to build upon when it comes to future descriptive investigations focused on behavioral weight gain prevention among college freshmen in the digital age. PMID- 29025702 TI - Oral health of children in England: a call to action! PMID- 29025701 TI - Distribution of H3K27me3, H3K9me3, and H3K4me3 along autophagy-related genes highly expressed in starved zebrafish myotubes. AB - The zebrafish (Danio rerio) remains the teleost fish of choice for biological investigations due to the vast array of molecular tools and resources available. To better understand the epigenetic regulation of autophagy, we utilized a primary myotube culture system generated from isolated myogenic precursor cells (MPCs) from zebrafish grown under starvation conditions using a media devoid of serum and amino acids. Here, we report starvation-induced regulation of several autophagy-related genes (atg) expression and profile the distribution of H3K27me3, H3K9me3, and H3K4me3 marks along lc3b, atg4b and p62/sqstm1 loci. These data support epigenetic regulation of autophagy in response to starvation that suggests a level of regulation that can be sustained for chronic conditions via chromatin modification. PMID- 29025703 TI - Give GPs more time with patients, urges RCGP chair. PMID- 29025704 TI - Improving quality of life relies on valid outcome measures as well as drugs. PMID- 29025705 TI - Differentiation, Evaluation, and Application of Human Induced Pluripotent Stem Cell-Derived Endothelial Cells. AB - The emergence of induced pluripotent stem cell (iPSC) technology paves the way to generate large numbers of patient-specific endothelial cells (ECs) that can be potentially delivered for regenerative medicine in patients with cardiovascular disease. In the last decade, numerous protocols that differentiate EC from iPSC have been developed by many groups. In this review, we will discuss several common strategies that have been optimized for human iPSC-EC differentiation and subsequent studies that have evaluated the potential of human iPSC-EC as a cell therapy or as a tool in disease modeling. In addition, we will emphasize the importance of using in vivo vessel-forming ability and in vitro clonogenic colony forming potential as a gold standard with which to evaluate the quality of human iPSC-EC derived from various protocols. PMID- 29025706 TI - NO Augments Endothelial Reactivity by Reducing Myoendothelial Calcium Signal Spreading: A Novel Role for Cx37 (Connexin 37) and the Protein Tyrosine Phosphatase SHP-2. AB - OBJECTIVE: Because of its strategic position between endothelial and smooth muscle cells in microvessels, Cx37 (Connexin 37) plays an important role in myoendothelial gap junctional intercellular communication. We have shown before that NO inhibits gap junctional intercellular communication through gap junctions containing Cx37. However, the underlying mechanism is not yet identified. APPROACH AND RESULTS: Using channel-forming Cx37 mutants exhibiting partial deletions or amino acid exchanges in their C-terminal loops, we now show that the phosphorylation state of a tyrosine residue at position 332 (Y332) in the C terminus of Cx37 controls the gap junction-dependent spread of calcium signals. Mass spectra revealed that NO protects Cx37 from dephosphorylation at Y332 by inhibition of the protein tyrosine phosphatase SHP-2. Functionally, the inhibition of gap junctional intercellular communication by NO decreased the spread of the calcium signal (induced by mechanical stimulation of individual endothelial cells) from endothelial to smooth muscle cells in intact vessels, while, at the same time, augmenting the calcium signal spreading within the endothelium. Consequently, preincubation of small resistance arteries with exogenous NO enhanced the endothelium-dependent dilator response to acetylcholine in spite of a pharmacological blockade of NO-dependent cGMP formation by the soluable guanylyl cyclase inhibitor ODQ (1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1 one). CONCLUSIONS: Our results identify a novel mechanism by which NO can increase the efficacy of calcium, rising vasoactive agonists in the microvascular endothelium. PMID- 29025707 TI - Proatherogenic Flow Increases Endothelial Stiffness via Enhanced CD36-Mediated Uptake of Oxidized Low-Density Lipoproteins. AB - OBJECTIVE: Disturbed flow (DF) is well-known to induce endothelial dysfunction and synergistically with plasma dyslipidemia facilitate plaque formation. Little is known, however, about the synergistic impact of DF and dyslipidemia on endothelial biomechanics. Our goal was to determine the impact of DF on endothelial stiffness and evaluate the role of dyslipidemia/oxLDL (oxidized low density lipoprotein) in this process. APPROACH AND RESULTS: Endothelial elastic modulus of intact mouse aortas ex vivo and of human aortic endothelial cells exposed to laminar flow or DF was measured using atomic force microscopy. Endothelial monolayer of the aortic arch is found to be significantly stiffer than the descending aorta (4.2+1.1 versus 2.5+0.2 kPa for aortic arch versus descending aorta) in mice maintained on low-fat diet. This effect is significantly exacerbated by short-term high-fat diet (8.7+2.5 versus 4.5+1.2 kPa for aortic arch versus descending aorta). Exposure of human aortic endothelial cells to DF in vitro resulted in 50% increase in oxLDL uptake and significant endothelial stiffening in the presence but not in the absence of oxLDL. DF also increased the expression of oxLDL receptor CD36 (cluster of differentiation 36), whereas downregulation of CD36 abrogated DF-induced endothelial oxLDL uptake and stiffening. Furthermore, genetic deficiency of CD36 abrogated endothelial stiffening in the aortic arch in vivo in mice fed either low-fat diet or high-fat diet. We also show that the loss of endothelial stiffening in CD36 knockout aortas is not mediated by the loss of CD36 in circulating cells. CONCLUSIONS: DF facilitates endothelial CD36-dependent uptake of oxidized lipids resulting in local increase of endothelial stiffness in proatherogenic areas of the aorta. PMID- 29025709 TI - Reduction of In-Stent Restenosis by Cholesteryl Ester Transfer Protein Inhibition. AB - OBJECTIVE: Angioplasty and stent implantation, the most common treatment for atherosclerotic lesions, have a significant failure rate because of restenosis. This study asks whether increasing plasma high-density lipoprotein (HDL) levels by inhibiting cholesteryl ester transfer protein activity with the anacetrapib analog, des-fluoro-anacetrapib, prevents stent-induced neointimal hyperplasia. APPROACH AND RESULTS: New Zealand White rabbits received normal chow or chow supplemented with 0.14% (wt/wt) des-fluoro-anacetrapib for 6 weeks. Iliac artery endothelial denudation and bare metal steel stent deployment were performed after 2 weeks of des-fluoro-anacetrapib treatment. The animals were euthanized 4 weeks poststent deployment. Relative to control, dietary supplementation with des fluoro-anacetrapib reduced plasma cholesteryl ester transfer protein activity and increased plasma apolipoprotein A-I and HDL cholesterol levels by 53+/-6.3% and 120+/-19%, respectively. Non-HDL cholesterol levels were unaffected. Des-fluoro anacetrapib treatment reduced the intimal area of the stented arteries by 43+/ 5.6% (P<0.001), the media area was unchanged, and the arterial lumen area increased by 12+/-2.4% (P<0.05). Des-fluoro-anacetrapib treatment inhibited vascular smooth muscle cell proliferation by 41+/-4.5% (P<0.001). Incubation of isolated HDLs from des-fluoro-anacetrapib-treated animals with human aortic smooth muscle cells at apolipoprotein A-I concentrations comparable to their plasma levels inhibited cell proliferation and migration. These effects were dependent on scavenger receptor-B1, the adaptor protein PDZ domain-containing protein 1, and phosphatidylinositol-3-kinase/Akt activation. HDLs from des-fluoro anacetrapib-treated animals also inhibited proinflammatory cytokine-induced human aortic smooth muscle cell proliferation and stent-induced vascular inflammation. CONCLUSIONS: Inhibiting cholesteryl ester transfer protein activity in New Zealand White rabbits with iliac artery balloon injury and stent deployment increases HDL levels, inhibits vascular smooth muscle cell proliferation, and reduces neointimal hyperplasia in an scavenger receptor-B1, PDZ domain-containing protein 1- and phosphatidylinositol-3-kinase/Akt-dependent manner. PMID- 29025708 TI - Intermuscular Adipose Tissue and Subclinical Coronary Artery Calcification in Midlife: The CARDIA Study (Coronary Artery Risk Development in Young Adults). AB - OBJECTIVE: Excess deposition of fat within and around vital organs and nonadipose tissues is hypothesized to contribute to cardiovascular disease (CVD) risk. We evaluated the association of abdominal intermuscular adipose tissue (IMAT) volume with coronary artery calcification in the CARDIA study (Coronary Artery Risk Development in Young Adults) participants. APPROACH AND RESULTS: We measured IMAT in the abdominal muscles, visceral adipose tissue and pericardial adipose tissue, and coronary artery calcification using computed tomography in 3051 CARDIA participants (56% women) at the CARDIA year 25 examination (2010-2011). Mean IMAT volume and mean IMAT/total muscle volume (IMAT normalized for muscle size) were calculated in a 10-mm block of slices centered at L3-L4. Multivariable analyses included potential confounders and traditional cardiovascular disease risk factors. Compared with the lowest quartile, the upper quartile of abdominal IMAT volume was associated with higher coronary artery calcification prevalence (odds ratio [95% confidence interval], 1.6 [1.2-2.1]) after adjusting for cardiovascular disease risk factors. Results were similar for highest versus lowest quartile of IMAT normalized to total muscle volume (odds ratio [95% confidence interval], 1.5 [1.1-2.0]). Significant associations of higher IMAT and normalized IMAT with coronary artery calcification prevalence persisted when body mass index, visceral adipose tissue, or pericardial adipose tissue were added to the models. CONCLUSIONS: In a large, community-based, cross-sectional study, we found that higher abdominal skeletal muscle adipose tissue volume was associated with subclinical atherosclerosis independent of traditional cardiovascular disease risk factors and other adipose depots. PMID- 29025710 TI - Opposing Actions of AKT (Protein Kinase B) Isoforms in Vascular Smooth Muscle Injury and Therapeutic Response. AB - OBJECTIVE: Drug-eluting stent delivery of mTORC1 (mechanistic target of rapamycin complex 1) inhibitors is highly effective in preventing intimal hyperplasia after coronary revascularization, but adverse effects limit their use for systemic vascular disease. Understanding the mechanism of action may lead to new treatment strategies. We have shown that rapamycin promotes vascular smooth muscle cell differentiation in an AKT2-dependent manner in vitro. Here, we investigate the roles of AKT (protein kinase B) isoforms in intimal hyperplasia. APPROACH AND RESULTS: We found that germ-line-specific or smooth muscle-specific deletion of Akt2 resulted in more severe intimal hyperplasia compared with control mice after arterial denudation injury. Conversely, smooth muscle-specific Akt1 knockout prevented intimal hyperplasia, whereas germ-line Akt1 deletion caused severe thrombosis. Notably, rapamycin prevented intimal hyperplasia in wild-type mice but had no therapeutic benefit in Akt2 knockouts. We identified opposing roles for AKT1 and AKT2 isoforms in smooth muscle cell proliferation, migration, differentiation, and rapamycin response in vitro. Mechanistically, rapamycin induced MYOCD (myocardin) mRNA expression. This was mediated by AKT2 phosphorylation and nuclear exclusion of FOXO4 (forkhead box O4), inhibiting its binding to the MYOCD promoter. CONCLUSIONS: Our data reveal opposing roles for AKT isoforms in smooth muscle cell remodeling. AKT2 is required for rapamycin's therapeutic inhibition of intimal hyperplasia, likely mediated in part through AKT2-specific regulation of MYOCD via FOXO4. Because AKT2 signaling is impaired in diabetes mellitus, this work has important implications for rapamycin therapy, particularly in diabetic patients. PMID- 29025711 TI - Toll-like receptor 2 and 4 have opposing roles in the pathogenesis of cigarette smoke-induced chronic obstructive pulmonary disease. AB - Chronic obstructive pulmonary disease (COPD) is the third leading cause of morbidity and death and imposes major socioeconomic burdens globally. It is a progressive and disabling condition that severely impairs breathing and lung function. There is a lack of effective treatments for COPD, which is a direct consequence of the poor understanding of the underlying mechanisms involved in driving the pathogenesis of the disease. Toll-like receptor (TLR)2 and TLR4 are implicated in chronic respiratory diseases, including COPD, asthma and pulmonary fibrosis. However, their roles in the pathogenesis of COPD are controversial and conflicting evidence exists. In the current study, we investigated the role of TLR2 and TLR4 using a model of cigarette smoke (CS)-induced experimental COPD that recapitulates the hallmark features of human disease. TLR2, TLR4, and associated coreceptor mRNA expression was increased in the airways in both experimental and human COPD. Compared with wild-type (WT) mice, CS-induced pulmonary inflammation was unaltered in TLR2-deficient ( Tlr2-/-) and TLR4 deficient ( Tlr4-/-) mice. CS-induced airway fibrosis, characterized by increased collagen deposition around small airways, was not altered in Tlr2-/- mice but was attenuated in Tlr4-/- mice compared with CS-exposed WT controls. However, Tlr2-/- mice had increased CS-induced emphysema-like alveolar enlargement, apoptosis, and impaired lung function, while these features were reduced in Tlr4-/- mice compared with CS-exposed WT controls. Taken together, these data highlight the complex roles of TLRs in the pathogenesis of COPD and suggest that activation of TLR2 and/or inhibition of TLR4 may be novel therapeutic strategies for the treatment of COPD. PMID- 29025714 TI - Racial/ethnic disparities: need more work! PMID- 29025713 TI - Neutrophil elastase increases airway ceramide levels via upregulation of serine palmitoyltransferase. AB - Altered sphingolipid metabolism is associated with increased inflammation; however, the impact of inflammatory mediators, including neutrophil elastase (NE), on airway sphingolipid homeostasis remains unknown. Using a well characterized mouse model of NE oropharyngeal aspiration, we investigated a potential link between NE-induced airway inflammation and increased synthesis of various classes of sphingolipids, including ceramide species. Sphingolipids in bronchoalveolar lavage fluids (BAL) were identified and quantified using reverse phase high-performance liquid chromatography/electrospray ionization tandem mass spectrometry analysis. BAL total and differential cell counts, CXCL1/keratinocyte chemoattractant (KC) protein levels, and high-mobility group box 1 (HMGB1) protein levels were determined. NE exposure increased BAL long-chain ceramides, total cell and neutrophil counts, and upregulated KC and HMGB1. The mRNA and protein levels of serine palmitoyltransferase (SPT) long-chain subunits 1 and 2, the multimeric enzyme responsible for the first, rate-limiting step of de novo ceramide generation, were determined by qRT-PCR and Western analyses, respectively. NE increased lung SPT long-chain subunit 2 (SPTLC2) protein levels but not SPTLC1 and had no effect on mRNA for either subunit. To assess whether de novo ceramide synthesis was required for NE-induced inflammation, myriocin, a SPT inhibitor, or a vehicle control was administered intraperitoneally 2 h before NE administration. Myriocin decreased BAL d18:1/22:0 and d18:1/24:1 ceramide, KC, and HMGB1 induced by NE exposure. These results support a feed-forward cycle of NE-generated ceramide and ceramide-driven cytokine signaling that may be a potential target for intervention in lung disease typified by chronic neutrophilic inflammation. PMID- 29025715 TI - RUNX1 in T-ALL: tumor suppressive or oncogenic? PMID- 29025716 TI - Twins actin' differently. PMID- 29025717 TI - Impacting inhibitor development in hemophilia A. PMID- 29025718 TI - Vorinostat is victorious in GVHD prevention. PMID- 29025719 TI - AML with myelodysplasia-related changes masquerades as acute panmyelosis with myelofibrosis. PMID- 29025712 TI - Ion channels of the lung and their role in disease pathogenesis. AB - Maintenance of normal epithelial ion and water transport in the lungs includes providing a thin layer of surface liquid that coats the conducting airways. This airway surface liquid is critical for normal lung function in a number of ways but, perhaps most importantly, is required for normal mucociliary clearance and bacterial removal. Preservation of the appropriate level of hydration, pH, and viscosity for the airway surface liquid requires the proper regulation and function of a battery of different types of ion channels and transporters. Here we discuss how alterations in ion channel/transporter function often lead to lung pathologies. PMID- 29025720 TI - Health Care Economics: A Study Guide for Neuroradiology Fellows, Part 1. AB - Few resources are available in the medical literature for a comprehensive review of current health care economics as it relates to radiologists, specifically framed by topics defined by the Accreditation Council for Graduate Medical Education in the evaluation of neuroradiology fellows. Therefore, we present a comprehensive review article as a study guide for fellows to learn from and gain competence in the Accreditation Council for Graduate Medical Education neuroradiology milestones on health care economics. PMID- 29025721 TI - Predictive Models in Differentiating Vertebral Lesions Using Multiparametric MRI. AB - BACKGROUND AND PURPOSE: Conventional MR imaging has high sensitivity but limited specificity in differentiating various vertebral lesions. We aimed to assess the ability of multiparametric MR imaging in differentiating spinal vertebral lesions and to develop statistical models for predicting the probability of malignant vertebral lesions. MATERIALS AND METHODS: One hundred twenty-six consecutive patients underwent multiparametric MRI (conventional MR imaging, diffusion weighted MR imaging, and in-phase/opposed-phase imaging) for vertebral lesions. Vertebral lesions were divided into 3 subgroups: infectious, noninfectious benign, and malignant. The cutoffs for apparent diffusion coefficient (expressed as 10-3 mm2/s) and signal intensity ratio values were calculated, and 3 predictive models were established for differentiating these subgroups. RESULTS: Of the lesions of the 126 patients, 62 were infectious, 22 were noninfectious benign, and 42 were malignant. The mean ADC was 1.23 +/- 0.16 for infectious, 1.41 +/- 0.31 for noninfectious benign, and 1.01 +/- 0.22 mm2/s for malignant lesions. The mean signal intensity ratio was 0.80 +/- 0.13 for infectious, 0.75 +/- 0.19 for noninfectious benign, and 0.98 +/- 0.11 for the malignant group. The combination of ADC and signal intensity ratio showed strong discriminatory ability to differentiate lesion type. We found an area under the curve of 0.92 for the predictive model in differentiating infectious from malignant lesions and an area under the curve of 0.91 for the predictive model in differentiating noninfectious benign from malignant lesions. On the basis of the mean ADC and signal intensity ratio, we established automated statistical models that would be helpful in differentiating vertebral lesions. CONCLUSIONS: Our study shows that multiparametric MRI differentiates various vertebral lesions, and we established prediction models for the same. PMID- 29025722 TI - Blunt Cerebrovascular Injuries: Advances in Screening, Imaging, and Management Trends. AB - Blunt cerebrovascular injury is a relatively uncommon but sometimes life threatening injury, particularly in patients presenting with ischemic symptoms in that vascular territory. The decision to pursue vascular imaging (generally CT angiography) is based on clinical and imaging findings. Several grading scales or screening criteria have been developed to guide the decision to pursue vascular imaging, as well as to recommend different treatment options for various injuries. The data supporting many of these guidelines and options are limited however. The purpose of this article is to review and compare these scales and criteria and the data supporting clinical efficacy and to make recommendations for future research in this area. PMID- 29025723 TI - Setting the Stage for 2018: How the Changes in the American Joint Committee on Cancer/Union for International Cancer Control Cancer Staging Manual Eighth Edition Impact Radiologists. AB - The updated eighth edition of the Cancer Staging Manual of the American Joint Committee on Cancer will be implemented in January 2018. There are multiple changes to the head and neck section of the manual, which will be relevant to radiologists participating in multidisciplinary head and neck tumor boards and reading pretreatment head and neck cancer scans. Human papillomavirus related/p16(+) oropharyngeal squamous cell carcinoma will now be staged separately; this change reflects the markedly better prognosis of these tumors compared with non-human papillomavirus/p16(-) oropharyngeal squamous cell carcinoma. Nodal staging has dramatically changed so that there are different tables for human papillomavirus/p16(+) oropharyngeal squamous cell carcinoma, Epstein-Barr virus-related nasopharyngeal carcinoma, and all other head and neck squamous cell carcinomas. Extranodal extension of tumor is a new clinical feature for this third staging group. In the oral cavity, the pathologically determined depth of tumor invasion is a new staging criterion, while extrinsic tongue muscle invasion is no longer part of staging. This review serves to educate radiologists on the eighth edition changes and their rationale. PMID- 29025725 TI - CT Texture Analysis: Defining and Integrating New Biomarkers for Advanced Oncologic Imaging in Precision Medicine: A Comment on "CT Texture Analysis Potentially Predicts Local Failure in Head and Neck Squamous Cell Carcinoma Treated with Chemoradiotherapy". PMID- 29025724 TI - Correlation between Clinical Outcomes and Baseline CT and CT Angiographic Findings in the SWIFT PRIME Trial. AB - BACKGROUND AND PURPOSE: Patient selection for endovascular therapy remains a great challenge in clinic practice. We sought to determine the effect of baseline CT and angiography on outcomes in the Solitaire With the Intention for Thrombectomy as Primary Endovascular Treatment for Acute Ischemic Stroke (SWIFT PRIME) trial and to identify patients who would benefit from endovascular stroke therapy. MATERIALS AND METHODS: The primary end point was a 90-day modified Rankin Scale score of 0-2. Subgroup and classification and regression tree analysis was performed on baseline ASPECTS, site of occlusion, clot length, collateral status, and onset-to-treatment time. RESULTS: Smaller baseline infarct (n = 145) (ASPECTS 8-10) was associated with better outcomes in patients treated with thrombectomy versus IV tPA alone (66% versus 41%; rate ratio, 1.62) compared with patients with larger baseline infarcts (n = 44) (ASPECTS 6-7) (42% versus 21%; rate ratio, 1.98). The benefit of thrombectomy over IV tPA alone did not differ significantly by ASPECTS. Stratification by occlusion location also showed benefit with thrombectomy across all groups. Improved outcomes after thrombectomy occurred in patients with clot lengths of >=8 mm (71% versus 43%; rate ratio, 1.67). Outcomes stratified by collateral status had a benefit with thrombectomy across all groups: none-fair collaterals (33% versus 0%), good collaterals (58% versus 44%), and excellent collaterals (82% versus 28%). Using a 3-level classification and regression tree analysis, we observed optimal outcomes in patients with favorable baseline ASPECTS, complete/near-complete recanalization (TICI 2b/3), and early treatment (mean mRS, 1.35 versus 3.73), while univariate and multivariate logistic regression showed significantly better results in patients with higher ASPECTS. CONCLUSIONS: While benefit was seen with endovascular therapy across multiple subgroups, the greatest response was observed in patients with a small baseline core infarct, excellent collaterals, and early treatment. PMID- 29025726 TI - Gestational Age at Birth and Brain White Matter Development in Term-Born Infants and Children. AB - BACKGROUND AND PURPOSE: Studies on infants and children born preterm have shown that adequate gestational length is critical for brain white matter development. Less is known regarding how variations in gestational age at birth in term infants and children affect white matter development, which was evaluated in this study. MATERIALS AND METHODS: Using DTI tract-based spatial statistics methods, we evaluated white matter microstructures in 2 groups of term-born (>=37 weeks of gestation) healthy subjects: 2-week-old infants (n = 44) and 8-year-old children (n = 63). DTI parameters including fractional anisotropy, mean diffusivity, axial diffusivity, and radial diffusivity were calculated by voxelwise and ROI methods and were correlated with gestational age at birth, with potential confounding factors such as postnatal age and sex controlled. RESULTS: Fractional anisotropy values, which are markers for white matter microstructural integrity, positively correlated (P < .05, corrected) with gestational age at birth in most major white matter tracts/regions for the term infants. Mean diffusivity values, which are measures of water diffusivities in the brain, and axial and radial diffusivity values, which are markers for axonal growth and myelination, respectively, negatively correlated (P < .05, corrected) with gestational age at birth in all major white matter tracts/regions excluding the body and splenium of the corpus callosum for the term infants. No significant correlations with gestational age were observed for any tracts/regions for the term-born 8-year-old children. CONCLUSIONS: Our results indicate that longer gestation during the normal term period is associated with significantly greater infant white matter development (as reflected by higher fractional anisotropy and lower mean diffusivity, axial diffusivity, and radial diffusivity values); however, similar associations were not observable in later childhood. PMID- 29025727 TI - CT Texture Analysis Potentially Predicts Local Failure in Head and Neck Squamous Cell Carcinoma Treated with Chemoradiotherapy. AB - BACKGROUND AND PURPOSE: The accurate prediction of prognosis and failure is crucial for optimizing treatment strategies for patients with cancer. The purpose of this study was to assess the performance of pretreatment CT texture analysis for the prediction of treatment failure in primary head and neck squamous cell carcinoma treated with chemoradiotherapy. MATERIALS AND METHODS: This retrospective study included 62 patients diagnosed with primary head and neck squamous cell carcinoma who underwent contrast-enhanced CT examinations for staging, followed by chemoradiotherapy. CT texture features of the whole primary tumor were measured using an in-house developed Matlab-based texture analysis program. Histogram, gray-level co-occurrence matrix, gray-level run-length, gray level gradient matrix, and Laws features were used for texture feature extraction. Receiver operating characteristic analysis was used to identify the optimal threshold of any significant texture parameter. We used multivariate Cox proportional hazards models to examine the association between the CT texture parameter and local failure, adjusting for age, sex, smoking, primary tumor stage, primary tumor volume, and human papillomavirus status. RESULTS: Twenty-two patients (35.5%) developed local failure, and the remaining 40 (64.5%) showed local control. Multivariate analysis revealed that 3 histogram features (geometric mean [hazard ratio = 4.68, P = .026], harmonic mean [hazard ratio = 8.61, P = .004], and fourth moment [hazard ratio = 4.56, P = .048]) and 4 gray level run-length features (short-run emphasis [hazard ratio = 3.75, P = .044], gray-level nonuniformity [hazard ratio = 5.72, P = .004], run-length nonuniformity [hazard ratio = 4.15, P = .043], and short-run low gray-level emphasis [hazard ratio = 5.94, P = .035]) were significant predictors of outcome after adjusting for clinical variables. CONCLUSIONS: Independent primary tumor CT texture analysis parameters are associated with local failure in patients with head and neck squamous cell carcinoma treated with chemoradiotherapy. PMID- 29025728 TI - Necessary Catheter Diameters for Mechanical Thrombectomy with ADAPT. AB - BACKGROUND AND PURPOSE: Large-bore catheters allow mechanical thrombectomy in ischemic stroke by engaging and retrieving clots without additional devices (direct aspiration first-pass technique [ADAPT]). The purpose of this study was to establish a model for minimal catheter diameters needed for ADAPT. MATERIALS AND METHODS: We established a theoretic model for the calculation of minimal catheter diameters needed for ADAPT. We then verified its validity in 28 ADAPT maneuvers in a porcine in vivo model. To account for different mechanical thrombectomy techniques, we factored in ADAPT with/without a hypothetic 0.021 inch microcatheter or 0.014-inch microwire inside the lumen of the aspiration catheter and aspiration with a 60-mL syringe versus an aspiration pump. RESULTS: According to our calculations, catheters with an inner diameter of >0.040 inch and >0.064 inch, respectively, are needed to be effective in the middle cerebral artery (2.5-mm diameter) or in the internal carotid artery (4 mm) in an average patient. There was a significant correlation between predicted and actual thrombectomy results (P = .010). Our theoretic model had a positive and negative predictive value of 78% and 79%, respectively. Sensitivity and specificity were 88% and 64%, respectively. CONCLUSIONS: Our theoretic model allows estimating the minimal catheter diameters needed for successful mechanical thrombectomy with ADAPT, as demonstrated by the good agreement with our animal experiments. Our model will be helpful to interventionalists in avoiding selecting catheters that are likely too small to be effective. PMID- 29025729 TI - Live cell imaging of cytosolic NADH/NAD+ ratio in hepatocytes and liver slices. AB - Fatty liver disease (FLD), the most common chronic liver disease in the United States, may be caused by alcohol or the metabolic syndrome. Alcohol is oxidized in the cytosol of hepatocytes by alcohol dehydrogenase (ADH), which generates NADH and increases cytosolic NADH/NAD+ ratio. The increased ratio may be important for development of FLD, but our ability to examine this question is hindered by methodological limitations. To address this, we used the genetically encoded fluorescent sensor Peredox to obtain dynamic, real-time measurements of cytosolic NADH/NAD+ ratio in living hepatocytes. Peredox was expressed in dissociated rat hepatocytes and HepG2 cells by transfection, and in mouse liver slices by tail-vein injection of adeno-associated virus (AAV)-encoded sensor. Under control conditions, hepatocytes and liver slices exhibit a relatively low (oxidized) cytosolic NADH/NAD+ ratio as reported by Peredox. The ratio responds rapidly and reversibly to substrates of lactate dehydrogenase (LDH) and sorbitol dehydrogenase (SDH). Ethanol causes a robust dose-dependent increase in cytosolic NADH/NAD+ ratio, and this increase is mitigated by the presence of NAD+ generating substrates of LDH or SDH. In contrast to hepatocytes and slices, HepG2 cells exhibit a relatively high (reduced) ratio and show minimal responses to substrates of ADH and SDH. In slices, we show that comparable results are obtained with epifluorescence imaging and two-photon fluorescence lifetime imaging (2p-FLIM). Live cell imaging with Peredox is a promising new approach to investigate cytosolic NADH/NAD+ ratio in hepatocytes. Imaging in liver slices is particularly attractive because it allows preservation of liver microanatomy and metabolic zonation of hepatocytes. NEW & NOTEWORTHY We describe and validate a new approach for measuring free cytosolic NADH/NAD+ ratio in hepatocytes and liver slices: live cell imaging with the fluorescent biosensor Peredox. This approach yields dynamic, real-time measurements of the ratio in living, functioning liver cells, overcoming many limitations of previous methods for measuring this important redox parameter. The feasibility of using Peredox in liver slices is particularly attractive because slices allow preservation of hepatic microanatomy and metabolic zonation of hepatocytes. PMID- 29025730 TI - Apelin-13 inhibits gastric motility through vagal cholinergic pathway in rats. AB - The expression of apelin and its receptors (APJ) in central autonomic networks suggests that apelin may regulate gastrointestinal motor functions. In rodents, central administration of apelin-13 has been shown to inhibit gastric emptying; however, the mechanisms involved remain to be determined. Using male adult Sprague-Dawley rats, the aims of the present study were 1) to determine the expression of APJ receptor in the dorsal vagal complex (DVC), 2) to assess the effects of central application of apelin-13 into the DVC on gastric tone and motility, and 3) to investigate the neuronal pathways responsible for apelin induced alterations. APJ receptor immunoreactivity was detected in gastric projecting and choline acetyltransferase-positive neurons of the DVC. Microinjection of apelin-13 into the DVC significantly decreased gastric tone and motility in both corpus and antrum. The apelin-induced reduction in gastric tone and motility was prevented by surgical vagotomy or fourth ventricular application of the APJ receptor antagonist, [Ala13]apelin-13 (F13A). Systemic administration of the muscarinic receptor antagonist atropine, but not the nitric oxide synthase inhibitor nitro-l-arginine methyl ester (l-NAME), abolished the apelin-induced inhibitory responses. The present results indicate a central modulatory role of apelin in the vagal neurocircuitry that controls gastric motor functions via withdrawal of the tonically active cholinergic pathway. NEW & NOTEWORTHY This is the first study investigating the effects induced by brain stem application of apelin-13 while monitoring gastric tone and motility in rats. We have found that gastric-projecting neurons of the dorsal vagal complex express apelin receptors (APJ), which mediate the inhibitory actions of apelin-13. The inhibitory effects of apelin were abolished by systemic preadministration of atropine, but not nitro l-arginine methyl ester (l-NAME). Apelin seems to modulate gastric motility via withdrawal of the tonically active vagal cholinergic pathway. PMID- 29025732 TI - Rack1 maintains intestinal homeostasis by protecting the integrity of the epithelial barrier. AB - Previously, we generated mouse models of Rack1 deficiency to identify key functions for Rack1 in regulating growth of intestinal epithelia: suppressing crypt cell proliferation and regeneration, promoting differentiation and apoptosis, and repressing development of neoplasia. However, other than low body weight, we did not detect an overt phenotype in mice constitutively deleted of Rack1 in intestinal epithelia ( vil-Cre: Rack1fl/fl mice), presumably because Rack1 was deleted in <10% of the total surface area of the epithelia. To assess the effect of Rack1 loss throughout the entire intestinal epithelia, we generated another mouse model of Rack1 deficiency, vil-Cre-ERT2: Rack1fl/fl. Within 5-10 days of the initial tamoxifen treatment, the mice lost over 20% of their body weight, developed severe diarrhea that for some was bloody, became critically ill, and died, if not euthanized. Necropsies revealed mildly distended, fluid-, gas-, and sometimes blood-filled loops of small and large bowel, inguinal lymphadenopathy, and thrombocytosis. Rack1 was deleted in nearly 100% of the epithelia in both the small intestine and colon when assessed by immunofluorescent or immunoblot analyses. Rack1 expression in other tissues and organs was not different than in control mice, indicating tissue specificity of the recombination. Histopathology revealed a patchy, erosive, hemorrhagic, inflammatory enterocolitis with denuded, sloughed off surface epithelium, and crypt hyperplasia. These results suggest a protective function for Rack1 in maintaining the integrity of intestinal epithelia and for survival. NEW & NOTEWORTHY Our findings reveal a novel function for Rack1 in maintaining intestinal homeostasis by protecting the epithelial barrier. Rack1 loss results in a patchy, erosive, hemorrhagic, inflammatory enterocolitis, which resembles that of inflammatory bowel diseases (IBD) in humans. Understanding mechanisms that protect barrier function in normal intestine and how loss of that protection contributes to the pathogenesis of IBD could lead to improved therapies for these and other erosive diseases of the gastrointestinal tract. PMID- 29025731 TI - Macrophage depletion using clodronate liposomes decreases tumorigenesis and alters gut microbiota in the AOM/DSS mouse model of colon cancer. AB - We examined the role of macrophages in inflammation associated with colorectal cancer (CRC). Given the emerging evidence on immune-microbiota interactions in CRC, we also sought to examine the interaction between macrophages and gut microbiota. To induce CRC, male C57BL/6 mice ( n = 32) received a single injection of azoxymethane (AOM), followed by three cycles of dextran sodium sulfate (DSS)-supplemented water in weeks 1, 4, and 7. Prior to the final DSS cycle ( week 7) and twice weekly until euthanasia, mice ( n = 16/group) received either 200 MUl ip of clodronate-filled liposomes (CLD) or phosphate-buffered saline (PBS) encapsulated liposomes to deplete macrophages. Colon tissue was analyzed for polyp burden, macrophage markers, transcription factors, and inflammatory mediators. Stool samples were collected, and DNA was isolated and subsequently sequenced for 16S rRNA. Clodronate liposomes decreased tumor number by ~36% and specifically large (>=1 mm) tumors by ~36% ( P < 0.05). This was consistent with a decrease in gene expression of EMR1 in the colon tissue and polyp tissue as well as expression of select markers associated with M1 (IL-6) and M2 macrophages (IL-13, IL-10, TGFbeta, CCL17) in the colon tissue ( P < 0.05). Similarly, there was a decrease in STAT3 and p38 MAPK and ERK signaling in colon tissue. Clodronate liposomes increased the relative abundance of the Firmicutes phylum ( P < 0.05) and specifically Lactobacillaceae and Clostridiaceae families, which have been associated with reduced CRC risk. Overall, these data support the development of therapeutic strategies to target macrophages in CRC and provide support for further evaluation of immune microbiota interactions in CRC. NEW & NOTEWORTHY We found that macrophage depletion during late-stage tumorigenesis is effective at reducing tumor growth. This was associated with a decrease in macrophage markers and chemokines in the colon tissue and a decrease in transcription factors that are linked to colorectal cancer. The macrophage-depleted group was found to have an increased abundance of Firmicutes, a phylum with documented anti-tumorigenic effects. Overall, these data support the development of therapeutic strategies to target macrophages in colorectal cancer. PMID- 29025733 TI - Hydrogen sulfide: an agent of stability at the microbiome-mucosa interface. AB - A diverse range of effects of the intestinal microbiota on mucosal defense and injury has become increasingly clear over the past decade. Hydrogen sulfide (H2S) has emerged as an important mediator of many physiological functions, including gastrointestinal mucosal defense and repair. Hydrogen sulfide is produced by gastrointestinal tract tissues and by bacteria residing within the gut and can influence the function of a wide range of cells. The microbiota also appears to be an important target of hydrogen sulfide. H2S donors can modify the gut microbiota, and the gastrointestinal epithelium is a major site of oxidation of microbial-derived H2S. When administered together with nonsteroidal anti inflammatory drugs, H2S can prevent some of the dysbiosis those drugs induce, possibly contributing to the observed prevention of gastrointestinal damage. Exogenous H2S can also markedly reduce the severity of experimental colitis and plays important roles in modulating epithelial cell-mucus-bacterial interactions in the intestine, contributing to its ability to promote resolution of inflammation and repair of tissue injury. In this paper we review recent studies examining the roles of H2S in mucosal defense, the possibility that H2S can damage the gastrointestinal epithelium, and effects of H2S on the gut microbiota and on mucus and biofilm interactions in the context of intestinal inflammation. PMID- 29025735 TI - Which pain medications are effective for sciatica (radicular leg pain)? PMID- 29025736 TI - Five minutes with . . . Mel Calvert. PMID- 29025734 TI - Dietary copper-fructose interactions alter gut microbial activity in male rats. AB - Dietary copper-fructose interactions contribute to the development of nonalcoholic fatty liver disease (NAFLD). Gut microbiota play critical roles in the pathogenesis of NAFLD. The aim of this study was to determine the effect of different dietary doses of copper and their interactions with high fructose on gut microbiome. Male weanling Sprague-Dawley rats were fed diets with adequate copper (6 ppm CuA), marginal copper (1.5 ppm CuM) (low copper), or supplemented copper (20 ppm CuS) (high copper) for 4 wk. Deionized water or deionized water containing 30% fructose (wt/vol) was given ad libitum. Copper status, liver enzymes, gut barrier function, and gut microbiome were evaluated. Both low- and high-copper diets led to liver injury in high-fructose-fed rats, and this was associated with gut barrier dysfunction, as shown by the markedly decreased tight junction proteins and increased gut permeability. 16S rDNA sequencing analysis revealed distinct alterations of the gut microbiome associated with dietary low- and high-copper/high-fructose feeding. The common features of the alterations of the gut microbiome were the increased abundance of Firmicutes and the depletion of Akkermansia. However, they differed mainly within the phylum Firmicutes. Our data demonstrated that a complex interplay among host, microbes, and dietary copper-fructose interaction regulates gut microbial metabolic activity, which may contribute to the development of liver injury and hepatic steatosis. The distinct alterations of gut microbial activity, which were associated with the different dietary doses of copper and fructose, imply that separate mechanism(s) may be involved. NEW & NOTEWORTHY First, dietary low- and high-copper/high-fructose induced liver injury are associated with distinct alterations of gut microbiome. Second, dietary copper level plays a critical role in maintaining the gut barrier integrity, likely by acting on the intestinal tight junction proteins and the protective commensal bacteria Akkermansia. Third, the alterations of gut microbiome induced by dietary low and high copper with or without fructose differ mainly within the phylum Firmicutes. PMID- 29025737 TI - Use of hospital-related health care among Health Links enrollees in the Central Ontario health region: a propensity-matched difference-in-differences study. AB - BACKGROUND: Health Links are a new model of providing care coordination for high cost, high-needs patients in Ontario. We evaluated use of hospital-related health care services among Health Links patients in the Central Local Health Integration Network (LHIN) of Ontario in the year before versus after program enrolment and compared rates of use with those among similar patients with complex needs not enrolled in the program (comparator group). METHODS: We identified all patients who received a Health Links coordinated care plan before Jan. 1, 2015, using linked registry and health administrative data. We used propensity scores to match (1:1) enrollees (registry) with comparator patients (administrative data). Using a difference-in-differences approach with generalized estimating equations, we evaluated 5 measures of Health Link performance: rates of hospital admission, emergency department visits, days in acute care, 30-day readmissions and 7-day postdischarge primary care follow-up. RESULTS: Of the 344 enrollees in the registry, we matched 313 [91.0%] to comparator patients. All measured sociodemographic, comorbidity and health care use characteristics were balanced between the 2 groups (all standardized differences < 0.10). For enrollees, the rate of days in acute care per person-year increased by 35% (incidence rate ratio 1.35 [confidence interval 1.11-1.65]) after versus before the index date, but differences were nonsignificant for all other measures. Difference-in-differences analyses revealed greater reductions in hospital admissions, emergency department visits and acute care days after the index date in the comparator group than among enrollees. INTERPRETATION: Initial implementation of the Health Link program in the Central LHIN did not reduce selected indicators of Health Link performance among enrollees. As the Health Link program evolves and standardization is implemented, future research may reveal effects from the initiative in other outcomes or with longer follow-up. PMID- 29025739 TI - Government promises "ambitious" science deal with EU. PMID- 29025738 TI - Local, local, local: the regeneration project that puts the community in charge of its health. PMID- 29025741 TI - NHS aims to expand emergency department workforce to combat pressures. PMID- 29025740 TI - FCR achieves long-term durable remissions in patients with IGHV-mutated CLL. AB - In chronic lymphocytic leukemia (CLL) patients with mutated IGHV, 3 recent studies have demonstrated prolonged progression-free survival (PFS) after treatment with fludarabine-cyclophosphamide-rituximab (FCR) chemoimmunotherapy. We performed a systematic review to assess the benefit of FCR for patients with CLL and identified 5 randomized trials that met our inclusion criteria. FCR improved complete remission, PFS and overall survival vs the comparator; median PFS was not reached in the subgroup of CLL patients with mutated IGHV. PMID- 29025742 TI - GPs indemnity to be provided through state backed scheme, says Hunt. PMID- 29025743 TI - Acute constipation and vomiting with the "coffee bean" sign. PMID- 29025744 TI - Four study design principles for genetic investigations using next generation sequencing. PMID- 29025745 TI - Association of Persistent, Incident, and Remittent Proteinuria With Stroke Risk in Patients With Diabetes Mellitus or Prediabetes Mellitus. AB - BACKGROUND: Proteinuria often changes dynamically, showing either regression or progression. The impact of changes in proteinuria on future stroke risk remains largely unknown. We hypothesized that changes in proteinuria would be associated with stroke risk in patients with diabetes mellitus and prediabetes mellitus. METHODS AND RESULTS: The study population included 17 380 participants with diabetes mellitus or prediabetes mellitus enrolled in a prospective Chinese cohort. From the baseline and 2-year dipstick screening results, participants were classified as having no proteinuria or remittent, incident, or persistent proteinuria. Reduction in proteinuria was calculated as the baseline minus 2-year proteinuria. Stroke outcomes were assessed in subsequent follow-ups. Data were analyzed using Cox proportional-hazards models. During a median follow-up of 6.9 years, we identified 751 patients with stroke. Stroke risk was increased for participants with persistent (hazard ratio [HR], 1.64; 95% confidence interval [CI], 1.18-2.30), incident (HR, 1.52; 95% CI, 1.22-1.89), and remittent (HR, 1.42; 95% CI, 1.01-2.02) proteinuria compared with those with no proteinuria. Persistent proteinuria was associated with a higher risk of stroke for participants with prediabetes mellitus (HR, 2.58; 95% CI, 1.58-4.22) compared with those with diabetes mellitus (HR, 1.35; 95% CI, 0.86-2.12 [P for interaction=0.0083]). Proteinuria reduction contributed to a decrease in stroke incidence (HR, 0.88; 95% CI, 0.81-0.95). The results were confirmed by sensitivity analyses. CONCLUSIONS: Persistent, incident, and remittent proteinuria are independent indicators of stroke risk in both diabetic and prediabetic populations. PMID- 29025746 TI - Clinical Prediction Model for Time in Therapeutic Range While on Warfarin in Newly Diagnosed Atrial Fibrillation. AB - BACKGROUND: Though warfarin has historically been the primary oral anticoagulant for stroke prevention in newly diagnosed atrial fibrillation (AF), several new direct oral anticoagulants may be preferred when anticoagulation control with warfarin is expected to be poor. This study developed a prediction model for time in therapeutic range (TTR) among newly diagnosed AF patients on newly initiated warfarin as a tool to assist decision making between warfarin and direct oral anticoagulants. METHODS AND RESULTS: This electronic medical record-based, retrospective study included newly diagnosed, nonvalvular AF patients with no recent warfarin exposure receiving primary care services through a large healthcare system in rural Pennsylvania. TTR was estimated as the percentage of time international normalized ratio measurements were between 2.0 and 3.0 during the first year following warfarin initiation. Candidate predictors of TTR were chosen from data elements collected during usual clinical care. A TTR prediction model was developed and temporally validated and its predictive performance was compared with the SAMe-TT2R2 score (sex, age, medical history, treatment, tobacco, race) using R2 and c-statistics. A total of 7877 newly diagnosed AF patients met study inclusion criteria. Median (interquartile range) TTR within the first year of starting warfarin was 51% (32, 67). Of 85 candidate predictors evaluated, 15 were included in the final validated model with an R2 of 15.4%. The proposed model showed better predictive performance than the SAMe-TT2R2 score (R2=3.0%). CONCLUSIONS: The proposed prediction model may assist decision making on the proper mode of oral anticoagulant among newly diagnosed AF patients. However, predicting TTR on warfarin remains challenging. PMID- 29025747 TI - Uncoupling Protein 2 Inhibits Myointimal Hyperplasia in Preclinical Animal Models of Vascular Injury. AB - BACKGROUND: Intracoronary stent restenosis, characterized by excessive smooth muscle cell (SMC) proliferation and myointimal hyperplasia, remains a clinical challenge. Mitochondrial membrane potential has been linked to the proliferative rate of SMCs. This study aimed to screen a critical gene regulating mitochondrial potential and to confirm its effects on myointimal formation in preclinical animal models. METHODS AND RESULTS: We performed transcriptome screening for genes differentially expressed in ligated versus unligated mouse carotid arteries. We observed that uncoupling protein 2 gene (Ucp2) mRNA, encoding UCP2, was transiently upregulated during the first 3 days after ligation and then significantly downregulated from day 7 through day 21, during which time neointima formed remarkably. The UCP2 protein level also declined after day 7 of ligation. In ligated carotid arteries, Ucp2-/- mice, compared with wild-type littermates, exhibited accelerated myointimal formation, which was associated with increased superoxide production and can be attenuated by treatment with antioxidant 4-hydroxy-2,2,6,6-tetramethyl-piperidinoxyl (TEMPOL). Knockdown of UCP2 enhanced human aortic SMC migration and proliferation that can also be attenuated by TEMPOL, whereas UCP2 overexpression inhibited SMC migration and proliferation, along with decreased activity of nuclear factor-kappaB. Moreover, nuclear factor-kappaB inhibitor attenuated UCP2 knockdown-enhanced SMC proliferation. Adenovirus-mediated overexpression of UCP2 inhibited myointimal formation in balloon-injured carotid arteries of rats and rabbits and in-stent stenosis of porcine coronary arteries. Moreover, UCP2 overexpression also suppressed neointimal hyperplasia in cultured human saphenous vein ex vivo. CONCLUSIONS: UCP2 inhibits myointimal hyperplasia after vascular injury, probably through suppressing nuclear factor-kappaB-dependent SMC proliferation and migration, rendering UCP2 a potential therapeutic target against restenosis. PMID- 29025751 TI - Meet the First Authors. PMID- 29025748 TI - Compromised Cerebrovascular Regulation and Cerebral Oxygenation in Pulmonary Arterial Hypertension. AB - BACKGROUND: Functional cerebrovascular regulatory mechanisms are important for maintaining constant cerebral blood flow and oxygen supply in heathy individuals and are altered in heart failure. We aim to examine whether pulmonary arterial hypertension (PAH) is associated with abnormal cerebrovascular regulation and lower cerebral oxygenation and their physiological and clinical consequences. METHODS AND RESULTS: Resting mean flow velocity in the middle cerebral artery mean flow velocity in the middle cerebral artery (MCAvmean); transcranial Doppler), cerebral pressure-flow relationship (assessed at rest and during squat stand maneuvers; analyzed using transfer function analysis), cerebrovascular reactivity to CO2, and central chemoreflex were assessed in 11 patients with PAH and 11 matched healthy controls. Both groups also completed an incremental ramp exercise protocol until exhaustion, during which MCAvmean, mean arterial pressure, cardiac output (photoplethysmography), end-tidal partial pressure of CO2, and cerebral oxygenation (near-infrared spectroscopy) were measured. Patients were characterized by a significant decrease in resting MCAvmean (P<0.01) and higher transfer function gain at rest and during squat-stand maneuvers (both P<0.05). Cerebrovascular reactivity to CO2 was reduced (P=0.03), whereas central chemoreceptor sensitivity was increased in PAH (P<0.01), the latter correlating with increased resting ventilation (R2=0.47; P<0.05) and the exercise ventilation/CO2 production slope (VE/VCO2 slope; R2=0.62; P<0.05) during exercise for patients. Exercise-induced increases in MCAvmean were limited in PAH (P<0.05). Reduced MCAvmean contributed to impaired cerebral oxygen delivery and oxygenation (both P<0.05), the latter correlating with exercise capacity in patients with PAH (R2=0.52; P=0.01). CONCLUSIONS: These findings provide comprehensive evidence for physiologically and clinically relevant impairments in cerebral hemodynamic regulation and oxygenation in PAH. PMID- 29025749 TI - Late Onset Postcapillary Pulmonary Hypertension in Patients With Transposition of the Great Arteries and Mustard or Senning Baffles. AB - BACKGROUND: There is a paucity of data regarding late-onset pulmonary hypertension (PH) in patients with transposition of the great arteries and atrial switch surgery. METHODS AND RESULTS: A retrospective cohort study was conducted on 140 adults with transposition of the great arteries and atrial switch surgery, age 37.3+/-7.8, 37.1% female, in order to assess the prevalence and characteristics of late-onset PH and explore associated factors. Patients were followed for a median of 32.3 years after atrial switch surgery and 10.0 years after their first referral visit. PH was detected in 18 of 33 (54.5%) patients who had invasive hemodynamic studies. Average age at diagnosis of PH was 33.9+/ 8.1 years. PH was postcapillary in all, with a mean pulmonary artery pressure of 36+/-12 mm Hg and mean pulmonary capillary wedge pressure of 28+/-8 mm Hg. PH was diagnosed in 13 of 17 (76.5%) patients who had cardiac catheterization for heart failure or decreased exercise tolerance. In multivariable analyses, systemic hypertension (odds ratio 9.4, 95% confidence interval 2.2-39.4, P=0.002) and heart failure or New York Heart Association class III or IV symptoms (odds ratio 49.8, 95% confidence interval 8.6-289.0, P<0.001) were independently associated with PH. Patients with PH were more likely to develop cardiovascular comorbidities including atrial (P=0.001) and ventricular (P=0.008) arrhythmias, require hospitalizations for heart failure (P<0.001), and undergo tricuspid valve surgery (P<0.001). Mortality was significantly higher in patients with PH (hazard ratio 9.4, 95% confidence interval 2.1-43.0], P<0.001). CONCLUSIONS: Late-onset postcapillary PH is highly prevalent in adults with transposition of the great arteries and atrial switch surgery and is associated with an adverse prognosis. PMID- 29025750 TI - Fludrocortisone Is Associated With a Higher Risk of All-Cause Hospitalizations Compared With Midodrine in Patients With Orthostatic Hypotension. AB - BACKGROUND: Orthostatic hypotension causes ~80 000 hospitalizations per year in the United States. Treatments for orthostatic hypotension include fludrocortisone, a mineralocorticoid analog that promotes sodium reabsorption; and midodrine, an alpha-1 adrenergic agonist that is a direct vasoconstrictor. Although both medications are used to treat orthostatic hypotension, few studies have compared their relative safety. METHODS AND RESULTS: We compared incidence rates of hospitalizations for all causes, and for congestive heart failure between users of fludrocortisone and users of midodrine in a retrospective cohort study of Tennessee Medicaid adult enrollees (1995-2009). Adjusted incidence rate ratios were calculated using negative binomial regression models. Subgroup analyses based on history of congestive heart failure were conducted. We studied 1324 patients initiating fludrocortisone and 797 patients initiating midodrine. Compared with fludrocortisone users, midodrine users had higher prevalence of cardiovascular conditions. Incidence rates of all-cause hospitalizations for fludrocortisone and midodrine users were 1489 and 1330 per 1000 person-years, respectively (adjusted incidence-rate ratio 1.20, 95% confidence interval, 1.02 1.40). The respective rates of heart failure-related hospitalization were 76 and 84 per 1000 person-years (adjusted incidence-rate ratio: 1.33, 95% confidence interval, 0.79-2.56). Among patients with a history of congestive heart failure, the rates of all-cause hospitalization for fludrocortisone and midodrine were 2448 and 1820 per 1000 person-years (adjusted incidence-rate ratio: 1.42, 95% confidence interval, 1.07-1.90), and the respective rates of heart failure exacerbation-related hospitalizations were 297 and 263 per 1000 person-years (adjusted incidence-rate ratio: 1.48, 95% confidence interval, 0.69-3.16). CONCLUSIONS: Compared with users of midodrine, users of fludrocortisone had higher rates of all-cause hospitalizations, especially among patients with congestive heart failure. PMID- 29025752 TI - Liver Kinase B1 Links Macrophage Metabolism Sensing and Atherosclerosis. PMID- 29025753 TI - Novel Pathways for Regulation of Sinoatrial Node Plasticity and Heart Rate. PMID- 29025755 TI - Cardiovascular Risk Prediction: Widening the Net. PMID- 29025754 TI - Unfriendly Fire From Neutrophils Promiscuously Potentiates Cardiovascular Inflammation. PMID- 29025756 TI - Elena Matsa: Lighting Fires for Heart Disease. PMID- 29025757 TI - Current State of Basic and Translational Cardiovascular Research in Spain. PMID- 29025758 TI - General Overview of the 14th International Symposium on Stem Cell Therapy and Cardiovascular Innovations: Working Progress of a Global Initiative in 2017. PMID- 29025759 TI - Paracrine-Mediated Systemic Anti-Inflammatory Activity of Intravenously Administered Mesenchymal Stem Cells: A Transformative Strategy for Cardiac Stem Cell Therapeutics. PMID- 29025762 TI - Modifying Mendel Redux: Unbiased Approaches Can Find Modifiers. PMID- 29025760 TI - Prediction for Intravenous Immunoglobulin Resistance by Using Weighted Genetic Risk Score Identified From Genome-Wide Association Study in Kawasaki Disease. AB - BACKGROUND: Intravenous immunoglobulin (IVIG) is the treatment of choice in Kawasaki disease (KD). IVIG is used to prevent cardiovascular complications related to KD. However, a proportion of KD patients have persistent fever after IVIG treatment and are defined as IVIG resistant. METHODS AND RESULTS: To develop a risk scoring system based on genetic markers to predict IVIG responsiveness in KD patients, a total of 150 KD patients (126 IVIG responders and 24 IVIG nonresponders) were recruited for this study. A genome-wide association analysis was performed to compare the 2 groups and identified risk alleles for IVIG resistance. A weighted genetic risk score was calculated by the natural log of the odds ratio multiplied by the number of risk alleles. Eleven single-nucleotide polymorphisms were identified by genome-wide association study. The KD patients were categorized into 3 groups based on their calculated weighted genetic risk score. Results indicated a significant association between weighted genetic risk score (groups 3 and 4 versus group 1) and the response to IVIG (Fisher's exact P value 4.518*10-03 and 8.224*10-10, respectively). CONCLUSIONS: This is the first weighted genetic risk score study based on a genome-wide association study in KD. The predictive model integrated the additive effects of all 11 single-nucleotide polymorphisms to provide a prediction of the responsiveness to IVIG. PMID- 29025763 TI - One Size Does Not Fit All: Genetic Prediction of Kawasaki Disease Treatment Response in Diverse Populations. PMID- 29025764 TI - Higher Risk of Vascular Dementia in Myocardial Infarction Survivors. AB - BACKGROUND: Increased risk of dementia after myocardial infarction (MI) may be mediated by shared risk factors (eg, atherosclerosis) and post-MI stroke. We examined risk of dementia in 1-year survivors of MI. METHODS: Using Danish medical registries, we conducted a nationwide population-based cohort study of all patients with first-time MI and a sex-, birth year-, and calendar year matched general population comparison cohort without MI (1980-2012). Cox regression analysis was used to compute 1- to 35-year adjusted hazard ratios (aHRs) for dementia, controlled for matching factors and adjusted for comorbidities and socioeconomic status. RESULTS: We identified 314 911 patients with MI and 1 573 193 matched comparison cohort members randomly sampled from the general population (median age, 70 years; 63% male). After 35 years of follow-up, the cumulative incidence of all-cause dementia in the MI cohort was 9% (2.8% for Alzheimer disease, 1.6% for vascular dementia, and 4.5% for other dementias). Compared with the general population cohort, MI was not associated with all-cause dementia (aHR, 1.01; 95% confidence interval [CI], 0.98-1.03). Risk of Alzheimer disease (aHR, 0.92; 95% CI, 0.88-0.95) and other dementias (aHR, 0.98; 95% CI, 0.95-1.01) also approximated unity. However, MI was associated with higher risk of vascular dementia (aHR, 1.35; 95% CI, 1.28-1.43), which was substantially strengthened for patients experiencing stroke after MI (aHR, 4.48; 95% CI, 3.29 6.12). CONCLUSIONS: MI was associated with higher risk of vascular dementia throughout follow-up, and this association was stronger in patients with stroke. The risk of Alzheimer disease and other dementias was not higher in patients with MI. PMID- 29025765 TI - Long-Term Potassium Monitoring and Dynamics in Heart Failure and Risk of Mortality. AB - BACKGROUND: The prognostic value of long-term potassium monitoring and dynamics in heart failure has not been characterized completely. We sought to determine the association between serum potassium values collected at follow-up with all cause mortality in a prospective and consecutive cohort of patients discharged from a previous acute heart failure admission. METHODS: Serum potassium was measured at every physician-patient encounter, including hospital admissions and ambulatory settings. The multivariable-adjusted association of serum potassium with mortality was assessed by using comprehensive state-of-the-art regression methods that can accommodate time-dependent exposure modeling. RESULTS: The study sample included 2164 patients with a total of 16 116 potassium observations. Mean potassium at discharge was 4.3+/-0.48 mEq/L. Hypokalemia (<3.5 mEq/L), normokalemia (3.5-5.0 mEq/L), and hyperkalemia (>5 mEq/L) were observed at the index admission in 77 (3.6%), 1965 (90.8%), and 122 (5.6%) patients, respectively. At a median follow-up of 2.8 years (range, 0.03-12.8 years), 1090 patients died (50.4%). On a continuous scale, the multivariable-adjusted association of potassium values and mortality revealed a nonlinear association (U shaped) with higher risk at both ends of its distribution (omnibus P=0.001). Likewise, the adjusted hazard ratios for hypokalemia and hyperkalemia, normokalemia as reference, were 2.35 (95% confidence interval, 1.40-3.93; P=0.001) and 1.55 (95% confidence interval, 1.11-2.16; P=0.011), respectively (omnibus P=0.0003). Furthermore, dynamic changes in potassium were independently associated with substantial differences in mortality risk. Potassium normalization was independently associated with lower mortality risk (P=0.001). CONCLUSIONS: Either modeled continuously or categorically, serum potassium levels during long-term monitoring were independently associated with mortality in patients with heart failure. Likewise, persistence of abnormal potassium levels was linked to a higher risk of death in comparison with patients who maintained or returned to normal values. PMID- 29025761 TI - Genome-Wide Association Study to Find Modifiers for Tetralogy of Fallot in the 22q11.2 Deletion Syndrome Identifies Variants in the GPR98 Locus on 5q14.3. AB - BACKGROUND: The 22q11.2 deletion syndrome (22q11.2DS; DiGeorge syndrome/velocardiofacial syndrome) occurs in 1 of 4000 live births, and 60% to 70% of affected individuals have congenital heart disease, ranging from mild to severe. In our cohort of 1472 subjects with 22q11.2DS, a total of 62% (n=906) have congenital heart disease and 36% (n=326) of these have tetralogy of Fallot (TOF), comprising the largest subset of severe congenital heart disease in the cohort. METHODS AND RESULTS: To identify common genetic variants associated with TOF in individuals with 22q11.2DS, we performed a genome-wide association study using Affymetrix 6.0 array and imputed genotype data. In our cohort, TOF was significantly associated with a genotyped single-nucleotide polymorphism (rs12519770, P=2.98*10-8) in an intron of the adhesion GPR98 (G-protein-coupled receptor V1) gene on chromosome 5q14.3. There was also suggestive evidence of association between TOF and several additional single-nucleotide polymorphisms in this region. Some genome-wide significant loci in introns or noncoding regions could affect regulation of genes nearby or at a distance. On the basis of this possibility, we examined existing Hi-C chromatin conformation data to identify genes that might be under shared transcriptional regulation within the region on 5q14.3. There are 6 genes in a topologically associated domain of chromatin with GPR98, including MEF2C (Myocyte-specific enhancer factor 2C). MEF2C is the only gene that is known to affect heart development in mammals and might be of interest with respect to 22q11.2DS. CONCLUSIONS: In conclusion, common variants may contribute to TOF in 22q11.2DS and may function in cardiac outflow tract development. PMID- 29025769 TI - Low Adrenomedullin and Endothelin-1 Predict Cardioinhibitory Response During Vasovagal Reflex in Adults Over 40 Years of Age. PMID- 29025766 TI - CAR T Therapy Targeting ICAM-1 Eliminates Advanced Human Thyroid Tumors. AB - Purpose: Poorly differentiated thyroid cancer and anaplastic thyroid cancer (ATC) are rare yet lethal malignancies with limited treatment options. Many malignant tumors, including papillary thyroid cancer (PTC) and ATC, are associated with increased expression of ICAM-1, providing a rationale for utilizing ICAM-1 targeting agents for the treatment of aggressive cancer. We developed a third generation chimeric antigen receptor (CAR) targeting ICAM-1 to leverage adoptive T-cell therapy as a new treatment modality.Experimental Design: ICAM-1 CAR T cells were applied to multiple malignant and nonmalignant target cells to investigate specific target cell death and "off-tumor" toxicity in vitroIn vivo therapeutic efficacy of ICAM-1 CAR T cells was examined in ATC mouse models established from a cell line and patient-derived tumors that rapidly develop systemic metastases.Results: ICAM-1 CAR T cells demonstrated robust and specific killing of PTC and ATC cell lines in vitro Interestingly, although certain ATC cell lines showed heterogeneous levels of ICAM-1 expression, addition of cytotoxic CAR T cells induced increased ICAM-1 expression such that all cell lines became targetable. In mice with systemic ATC, a single administration of ICAM-1 CAR T cells mediated profound tumor killing that resulted in long-term remission and significantly improved survival. Patient-derived ATC cells overexpressed ICAM-1 and were largely eliminated by autologous ICAM-1 CAR T cells in vitro and in animal models.Conclusions: Our findings are the first demonstration of CAR T therapy against both a metastatic, thyroid cancer cell line and advanced ATC patient-derived tumors that exhibit dramatic therapeutic efficacy and survival benefit in animal studies. Clin Cancer Res; 23(24); 7569 83. (c)2017 AACR. PMID- 29025770 TI - Cl-/HCO3- Exchanger slc26a6: A pH Regulator Shapes the Cardiac Action Potential. PMID- 29025767 TI - Monocytes and Granulocytes Reduce CD38 Expression Levels on Myeloma Cells in Patients Treated with Daratumumab. AB - Purpose: Daratumumab treatment results in a marked reduction of CD38 expression on multiple myeloma cells. The aim of this study was to investigate the clinical implications and the underlying mechanisms of daratumumab-mediated CD38 reduction.Experimental Design: We evaluated the effect of daratumumab alone or in combination with lenalidomide-dexamethasone, on CD38 levels of multiple myeloma cells and nontumor immune cells in the GEN501 study (daratumumab monotherapy) and the GEN503 study (daratumumab combined with lenalidomide-dexamethasone). In vitro assays were also performed.Results: In both trials, daratumumab reduced CD38 expression on multiple myeloma cells within hours after starting the first infusion, regardless of depth and duration of the response. In addition, CD38 expression on nontumor immune cells, including natural killer cells, T cells, B cells, and monocytes, was also reduced irrespective of alterations in their absolute numbers during therapy. In-depth analyses revealed that CD38 levels of multiple myeloma cells were only reduced in the presence of complement or effector cells, suggesting that the rapid elimination of CD38high multiple myeloma cells can contribute to CD38 reduction. In addition, we discovered that daratumumab-CD38 complexes and accompanying cell membrane were actively transferred from multiple myeloma cells to monocytes and granulocytes. This process of trogocytosis was also associated with reduced surface levels of some other membrane proteins, including CD49d, CD56, and CD138.Conclusions: Daratumumab rapidly reduced CD38 expression levels, at least in part, through trogocytosis. Importantly, all these effects also occurred in patients with deep and durable responses, thus excluding CD38 reduction alone as a mechanism of daratumumab resistance.The trials were registered at www.clinicaltrials.gov as NCT00574288 (GEN501) and NCT1615029 (GEN503). Clin Cancer Res; 23(24); 7498-511. (c)2017 AACR. PMID- 29025768 TI - Action Potential Shortening and Impairment of Cardiac Function by Ablation of Slc26a6. AB - BACKGROUND: Intracellular pH (pHi) is critical to cardiac excitation and contraction; uncompensated changes in pHi impair cardiac function and trigger arrhythmia. Several ion transporters participate in cardiac pHi regulation. Our previous studies identified several isoforms of a solute carrier Slc26a6 to be highly expressed in cardiomyocytes. We show that Slc26a6 mediates electrogenic Cl /HCO3- exchange activities in cardiomyocytes, suggesting the potential role of Slc26a6 in regulation of not only pHi, but also cardiac excitability. METHODS AND RESULTS: To test the mechanistic role of Slc26a6 in the heart, we took advantage of Slc26a6 knockout (Slc26a6-/- ) mice using both in vivo and in vitro analyses. Consistent with our prediction of its electrogenic activities, ablation of Slc26a6 results in action potential shortening. There are reduced Ca2+ transient and sarcoplasmic reticulum Ca2+ load, together with decreased sarcomere shortening in Slc26a6-/- cardiomyocytes. These abnormalities translate into reduced fractional shortening and cardiac contractility at the in vivo level. Additionally, pHi is elevated in Slc26a6-/- cardiomyocytes with slower recovery kinetics from intracellular alkalization, consistent with the Cl-/HCO3- exchange activities of Slc26a6. Moreover, Slc26a6-/- mice show evidence of sinus bradycardia and fragmented QRS complex, supporting the critical role of Slc26a6 in cardiac conduction system. CONCLUSIONS: Our study provides mechanistic insights into Slc26a6, a unique cardiac electrogenic Cl-/HCO3- transporter in ventricular myocytes, linking the critical roles of Slc26a6 in regulation of pHi, excitability, and contractility. pHi is a critical regulator of other membrane and contractile proteins. Future studies are needed to investigate possible changes in these proteins in Slc26a6-/- mice. PMID- 29025771 TI - Endothelial Activation and Blood-Brain Barrier Disruption in Neurotoxicity after Adoptive Immunotherapy with CD19 CAR-T Cells. AB - Lymphodepletion chemotherapy followed by infusion of CD19-targeted chimeric antigen receptor-modified T (CAR-T) cells can be complicated by neurologic adverse events (AE) in patients with refractory B-cell malignancies. In 133 adults treated with CD19 CAR-T cells, we found that acute lymphoblastic leukemia, high CD19+ cells in bone marrow, high CAR-T cell dose, cytokine release syndrome, and preexisting neurologic comorbidities were associated with increased risk of neurologic AEs. Patients with severe neurotoxicity demonstrated evidence of endothelial activation, including disseminated intravascular coagulation, capillary leak, and increased blood-brain barrier (BBB) permeability. The permeable BBB failed to protect the cerebrospinal fluid from high concentrations of systemic cytokines, including IFNgamma, which induced brain vascular pericyte stress and their secretion of endothelium-activating cytokines. Endothelial activation and multifocal vascular disruption were found in the brain of a patient with fatal neurotoxicity. Biomarkers of endothelial activation were higher before treatment in patients who subsequently developed grade >=4 neurotoxicity.Significance: We provide a detailed clinical, radiologic, and pathologic characterization of neurotoxicity after CD19 CAR-T cells, and identify risk factors for neurotoxicity. We show endothelial dysfunction and increased BBB permeability in neurotoxicity and find that patients with evidence of endothelial activation before lymphodepletion may be at increased risk of neurotoxicity. Cancer Discov; 7(12); 1404-19. (c)2017 AACR.See related commentary by Mackall and Miklos, p. 1371This article is highlighted in the In This Issue feature, p. 1355. PMID- 29025773 TI - Erdheim-Chester disease: atypical presentation of a rare disease. AB - We report the clinical case of an adult patient referred to our hospital because of trismus due to a tumour in the right infratemporal and pterygomaxillary fossa. He referred hyporexia, weight loss and right trigeminal neuralgia. On physical examination, he had trismus and diplopia. On neuroimaging, the tumour invaded the central nervous system affecting the right temporal lobe and orbit, and the sellar region. Tumour biopsy revealed foamy histiocytes and isolated giant multinuclear cells immunoreactive to CD68 and negative to CD1a and S100. A diagnosis of Erdheim-Chester disease was made. Non-evidence of large bone involvement was found in neither plain radiographs nor Technetium 99 m bone scintigraphy. BRAFV600E mutation analysis was negative. Because of raised intracranial pressure, a debulking surgery of the intracranial histiocytic process was performed. The patient improved his symptoms and remains clinically stable after 12 months of treatment with pegylated interferon-alpha-2a 180 ug/weekly. PMID- 29025774 TI - Posterior fossa progressive multifocal leukoencephalopathy: first presentation of an unknown autoimmune disease. AB - We present a case of a 57-year-old man who presented with progressive cerebellar dysarthria and cerebellar ataxia. Additional investigations confirmed the diagnosis of progressive multifocal leukoencephalopathy (PML) in the posterior fossa. This is a demyelinating disease of the central nervous system, caused by an opportunistic infection with John Cunningham virus. PML has previously been considered a lethal condition, but because of careful monitoring of patients with HIV and of patients using immunosuppressive drugs it is discovered in earlier stages and prognosis can be improved. Our patient had no known immune compromising state, but further work-up revealed that the PML was most likely the first presentation of a previous untreated autoimmune disorder: sarcoidosis. PMID- 29025775 TI - A unique case of nephrogenic systemic fibrosis from gadolinium exposure in a patient with normal eGFR. AB - A 57-year-old woman presented with swelling and thickening of the skin of the lower extremities. Three months prior to presentation, patient had MRI with gadolinium as part of an evaluation for suspected pancreatic malignancy. Creatinine levels at the time of gadolinium exposure were 0.9-1.2 mg/dL, with a corresponding estimated glomerular filtration rate of 64 mL/min/1.73m2 by modification of diet in renal disease equation. Twenty-four-hour urine creatinine clearance was performed as an outpatient following development of symptoms. This revealed a creatinine clearance of 23 mL/min, suggestive of advanced chronic kidney disease despite an estimated glomerular filtration rate of 64 mL/min/1.73m2 Skin biopsy was positive for sclerosing dermopathy. These findings, in addition to the temporal association with gadolinium exposure, led to the diagnosis of nephrogenic systemic fibrosis. PMID- 29025772 TI - Impaired HLA Class I Antigen Processing and Presentation as a Mechanism of Acquired Resistance to Immune Checkpoint Inhibitors in Lung Cancer. AB - Mechanisms of acquired resistance to immune checkpoint inhibitors (ICI) are poorly understood. We leveraged a collection of 14 ICI-resistant lung cancer samples to investigate whether alterations in genes encoding HLA Class I antigen processing and presentation machinery (APM) components or interferon signaling play a role in acquired resistance to PD-1 or PD-L1 antagonistic antibodies. Recurrent mutations or copy-number changes were not detected in our cohort. In one case, we found acquired homozygous loss of B2M that caused lack of cell surface HLA Class I expression in the tumor and a matched patient-derived xenograft (PDX). Downregulation of B2M was also found in two additional PDXs established from ICI-resistant tumors. CRISPR-mediated knockout of B2m in an immunocompetent lung cancer mouse model conferred resistance to PD-1 blockade in vivo, proving its role in resistance to ICIs. These results indicate that HLA Class I APM disruption can mediate escape from ICIs in lung cancer.Significance: As programmed death 1 axis inhibitors are becoming more established in standard treatment algorithms for diverse malignancies, acquired resistance to these therapies is increasingly being encountered. Here, we found that defective antigen processing and presentation can serve as a mechanism of such resistance in lung cancer. Cancer Discov; 7(12); 1420-35. (c)2017 AACR.This article is highlighted in the In This Issue feature, p. 1355. PMID- 29025776 TI - Unusual case of prosthetic joint infection caused by Francisella Tularensis. AB - Tularaemia is a zoonotic infection caused by Francisella tularensis.Ulceroglandular, glandular, oculoglandular, pharyngeal, typhoidal and pneumonic types are the different types of the disease. Infection of prosthetic joints occurs at an exceedingly uncommon rate. We report a case of prosthetic joint infection involving the hip with F. tularensis, which to the best of our knowledge after a thorough literature review is the second of its kind. PMID- 29025777 TI - Oesophageal ischaemia: an uncommon cause of chest pain. AB - A 79-year-old woman with a history of ischaemic heart disease and atrial fibrillation presented to hospital with severe chest pain. Blood tests showed an elevated D-dimer and a rise in troponin I. ECG showed right bundle branch block pattern and T wave inversion in leads V1 to V3, although these changes were present in old ECGs. A chest X-ray was done which was normal. Due to the nature and severity of her pain a CT aortic angiogram was done. This did not show any evidence of aortic dissection or a pulmonary embolism. The patient then had several episodes of haematemesis. An urgent oesophagogastroduodenoscopy was done which showed a circumferential, well demarcated area of blackened oesophageal mucosa. The patient was diagnosed with ischaemic damage to her oesophagus. PMID- 29025778 TI - Allergic bronchopulmonary mycosis presenting as a new lung mass. PMID- 29025779 TI - Scorpion bite-induced ischaemic stroke. AB - We report a 54-year-old woman with scorpion bite. After 3 hours of admission, the patient developed sudden onset tachycardia with hypotension. Cardiac evaluation showed raised creatine kinase MB isoenzyme was elevated; ECG and two-dimensional echocardiography findings were suggestive of myocarditis. Subsequently, she developed transient ventricular tachycardia before developing abrupt onset, right hemiplegia, global aphasia and progressive worsening of sensorium 12 hours after the bite. MRI of brain revealed massive left middle cerebral artery (MCA) territory infarct. The magnetic resonance angiography showed non-visualisation of left internal carotid artery (ICA) and MCA. Coagulation parameters were normal. Sudden complete occlusion of left ICA was probably secondary to cardioembolic phenomenon leading to massive infarct. Despite aggressive medical and supportive measures, she clinically worsened rapidly to Glasgow Coma Scale of 3/15 over next 6 hours and succumbed to her illness the next day. PMID- 29025780 TI - Cryptococcus neoformans osteomyelitis and intramuscular abscess in a liver transplant patient. AB - Cryptococcus neoformans is an important pathogen that can cause severe illness and mortality in immunocompromised patients. We highlight here the case of a 53 year-old man presenting to hospital 4 years postliver transplant with fever, acute renal failure and a medial thigh lesion. Initially treated as bacterial sepsis, the patient failed to improve on broad-spectrum antibiotics. Further investigations revealed disseminated cryptococcemia complicated by patellar osteomyelitis and an intramuscular abscess. Unfortunately, although the patient initially showed signs of clinical improvement after starting standard antifungal agents, he deteriorated and died secondary to acute renal failure. Osteomyelitis is a rare manifestation of cryptococcal infection for which there is often a significant delay to diagnosis and treatment. This is the fourth reported case of cryptococcal osteomyelitis in a liver transplant patient and underlines the importance of considering fungal infections in the differential diagnosis of osseous lesions in solid organ transplant and other immunocompromised patients. PMID- 29025781 TI - Subclinical meningoventriculitis as a cause of obstructive hydrocephalus. AB - Communicating hydrocephalus may complicate infantile bacterial meningitis, typically presenting with systemic features of infection. We report a rare case of 'subclinical meningoventriculitis' causing obstructive hydrocephalus and its challenging management. A healthy 10-week-old immunocompetent male patient presented with failure to thrive and vomiting, secondary to presumed gastro oesophageal reflux. The child was neurologically alert, afebrile with normal inflammatory markers. Progressive macrocephaly prompted an MRI confirming triventricular hydrocephalus secondary to aqueductal stenosis. An endoscopic third ventriculostomy was performed however abandoned intraoperatively due to the unexpected finding of intraventricular purulent cerebrospinal fluid. A 6-week course of intravenous ceftriaxone was commenced for Escherichia coli meningoventriculitis. However, the child was readmitted 18 days postoperatively with acute hydrocephalus requiring a ventricular washout and staged ventriculoperitoneal shunt insertion at 4 weeks. Serial head circumference measurements are paramount in the assessment of a paediatric patient. In an immunocompetent child, a subclinical fibropurulent meningoventriculitis can result in several management challenges. PMID- 29025782 TI - Olfactory bulb agenesis with normal sexual hormones. AB - An 18-year-old Caucasian man presented with a lack of sense of surrounding smell. The problem was first noticed when a family member discussed the smell of the food, which he had no idea what it was. The patient had normal development and sexual function, no history of trauma, surgery, chemical exposure or infection. Physical examination revealed no significant abnormalities. Smell threshold test using phenyl-ethyl-alcohol revealed bilateral anosmia. MRI showed bilateral aplastic olfactory bulbs and tracts associated with absent cortical growth of the olfactory sulci and asymmetrical gyrus rectus. Circulating hormones including cortisol, growth hormone, insulin-like growth factor 1, adrenocorticotropic hormone, thyroid hormones, follicle-stimulating hormone, luteinizing hormone, prolactin and testosterone were within normal ranges. Doppler ultrasound showed normal testis with bilateral supratesticular varicoceles. Given the loss of warning smell sensation, counselling for daily living precautions especially those related to gas, fire and rotten food was given. PMID- 29025783 TI - Syncope from radiation-induced baroreceptor failure. AB - Orthostatic hypotension has a vast differential that has been previously described throughout the literature. However, baroreceptor failure as a sequela of head and neck radiation is not often recognised as an important cause of dramatic haemodynamic variability. As a result, individuals suffering from baroreceptor failure likely have been undertreated. Herein, we report a case of a patient with a history of radiation to the neck for squamous cell carcinoma of the tongue and resultant baroreceptor failure resulting in syncope. PMID- 29025784 TI - Hydatid cyst of the thigh: a challenging diagnosis. PMID- 29025785 TI - Live 'Baby dance' among the red blood cells. PMID- 29025786 TI - Disparity between Nephrologists' Opinions and Contemporary Practices for Community Follow-Up after AKI Hospitalization. AB - BACKGROUND AND OBJECTIVES: Recent guidelines suggest that patients should be evaluated after AKI for resolution versus progression of CKD. There is uncertainty as to the role of nephrologists in this process. The objective of this study was to compare the follow-up recommendations from nephrologists with contemporary processes of care for varying scenarios of patients hospitalized with AKI. DESIGN, SETTING PARTICIPANTS, & MEASUREMENTS: We surveyed Canadian nephrologists using a series of clinical vignettes of patients hospitalized with severe AKI and asked them to rank their likelihood of recommending follow-up for each patient after hospital discharge. We compared these responses with administrative health data on rates of community follow-up with nephrologists for patients hospitalized with AKI in Alberta, Canada between 2005 and 2014. RESULTS: One hundred forty-five nephrologists participated in the survey (46% of the physician membership of the Canadian Society of Nephrology). Nephrologists surveyed indicated that they would definitely or probably re-evaluate patients in 87% of the scenarios provided, with a higher likelihood of follow-up for patients with a history of preexisting CKD (89%), heart failure (92%), receipt of acute dialysis (91%), and less complete recovery of kidney function (98%). In contrast, only 24% of patients with similar characteristics were seen by a nephrologist in Alberta within 1 year after a hospitalization with AKI, with a trend toward lower rates of follow-up over more recent years of the study. Follow-up with a nephrologist was significantly less common among patients over the age of 80 years old (20%) and more common among patients with preexisting CKD (43%) or a nephrology consultation before or during AKI hospitalization (78% and 41%, respectively). CONCLUSIONS: There is a substantial disparity between the opinions of nephrologists and actual processes of care for nephrology evaluation of patients after hospitalization with severe AKI. PMID- 29025787 TI - A Markov Analysis of Screening for Late-Onset Cytomegalovirus Disease in Cytomegalovirus High-Risk Kidney Transplant Recipients. AB - BACKGROUND AND OBJECTIVES: Management strategies are unclear for late-onset cytomegalovirus infection occurring beyond 6 months of antiviral prophylaxis in cytomegalovirus high-risk (cytomegalovirus IgG positive to cytomegalovirus IgG negative) kidney transplant recipients. Hybrid strategies (prophylaxis followed by screening) have been investigated but with inconclusive results. There are clinical and potential cost benefits of preventing cytomegalovirus-related hospitalizations and associated increased risks of patient and graft failure. We used decision analysis to evaluate the utility of postprophylaxis screening for late-onset cytomegalovirus infection. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We used the Markov decision analysis model incorporating costs and utilities for various cytomegalovirus clinical states (asymptomatic cytomegalovirus, mild cytomegalovirus infection, and cytomegalovirus infection necessitating hospitalization) to estimate cost-effectiveness of postprophylaxis cytomegalovirus screening strategies. Five strategies were compared: no screening and screening at 1-, 2-, 3-, or 4-week intervals. Progression to severe cytomegalovirus infection was modeled on cytomegalovirus replication kinetics. Incremental cost-effectiveness ratios were calculated as a ratio of cost difference between two strategies to difference in quality-adjusted life-years starting with the low-cost strategy. One-way and probabilistic sensitivity analyses were performed to test model's robustness. RESULTS: There was an incremental gain in quality-adjusted life-years with increasing screening frequency. Incremental cost-effectiveness ratios were $783 per quality-adjusted life-year (every 4 weeks over no screening), $1861 per quality-adjusted life-year (every 3 weeks over every 4 weeks), $10,947 per quality-adjusted life-year (every 2 weeks over every 3 weeks), and $197,086 per quality-adjusted life-year (weekly over every 2 weeks). Findings were sensitive to screening cost, cost of hospitalization, postprophylaxis cytomegalovirus incidence, and graft loss after cytomegalovirus infection. No screening was favored when willingness to pay threshold was <$14,000 per quality-adjusted life-year, whereas screening weekly was favored when willingness to pay threshold was >$185,000 per quality-adjusted life-year. Screening every 2 weeks was the dominant strategy between willingness to pay range of $14,000-$185,000 per quality-adjusted life-year. CONCLUSIONS: In cytomegalovirus high-risk kidney transplant recipients, compared with no screening, screening for postprophylactic cytomegalovirus viremia is associated with gains in quality-adjusted life-years and seems to be cost effective. A strategy of screening every 2 weeks was the most cost-effective strategy across a wide range of willingness to pay thresholds. PMID- 29025791 TI - What if alcohol were harmful, even in moderation? PMID- 29025788 TI - Brief Mindfulness Meditation for Depression and Anxiety Symptoms in Patients Undergoing Hemodialysis: A Pilot Feasibility Study. AB - BACKGROUND AND OBJECTIVES: Up to 50% of patients undergoing hemodialysis suffer from symptoms of depression and/or anxiety. Access to traditional pharmacotherapies and psychotherapies for depression or anxiety in this patient population has been inadequate. The objective of this study was to investigate the feasibility and effectiveness of brief mindfulness meditation intervention for patients on hemodialysis with depression and anxiety symptoms. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: This study was a randomized, controlled, assessor-blinded trial conducted in an urban hemodialysis unit. Forty-one patients were randomly assigned to intervention (n=21) and treatment-as-usual (n=20) groups. The intervention group received an 8-week individual chairside meditation intervention lasting 10-15 minutes, three times a week during hemodialysis. Feasibility outcomes were primarily assessed: enrollment rates, intervention completion rates, and intervention tolerability. Symptoms of depression and anxiety were measured using the Patient Health Questionnaire (PHQ 9) and the General Anxiety Disorder-7 (GAD-7). RESULTS: Of those deemed eligible for the study, 67% enrolled (41 of 61). Of the participants randomized to the intervention group, 71% completed the study, with meditation being well tolerated (median rating of 8 of 10 in a Likert scale; interquartile range=10-5 of 10). Barriers to intervention delivery included frequent hemodialysis shift changes, interruptions by staff or alarms, space constraints, fluctuating participant medical status, and participant fatigue. Meditation was associated with subjective benefits but no statistically significant effect on depression scores (change in PHQ-9, -3.0+/-3.9 in the intervention group versus -2.0+/-4.7 in controls; P=0.45) or anxiety scores (change in GAD-7, -0.9+/-4.6 versus -0.8+/ 4.8; P=0.91). CONCLUSIONS: On the basis of the results of this study, mindfulness meditation appears to be feasible and well tolerated in patients on hemodialysis with anxiety and depression symptoms. The study did not reveal significant effects of the interventions on depression and anxiety scores. PODCAST: This article contains a podcast at https://www.asn online.org/media/podcast/CJASN/2017_10_12_CJASNPodcast_17_12_.mp3. PMID- 29025792 TI - ? PMID- 29025789 TI - FGF23 and Left Ventricular Hypertrophy in Children with CKD. AB - BACKGROUND AND OBJECTIVES: High plasma concentration of fibroblast growth factor 23 (FGF23) is a risk factor for left ventricular hypertrophy (LVH) in adults with CKD, and induces myocardial hypertrophy in experimental CKD. We hypothesized that high FGF23 levels associate with a higher prevalence of LVH in children with CKD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We performed echocardiograms and measured plasma C-terminal FGF23 concentrations in 587 children with mild-to moderate CKD enrolled in the Chronic Kidney Disease in Children (CKiD) study. We used linear and logistic regression to analyze the association of plasma FGF23 with left ventricular mass index (LVMI) and LVH (LVMI >=95th percentile), adjusted for demographics, body mass index, eGFR, and CKD-specific factors. We also examined the relationship between FGF23 and LVH by eGFR level. RESULTS: Median age was 12 years (interquartile range, 8-15) and eGFR was 50 ml/min per 1.73 m2 (interquartile range, 38-64). Overall prevalence of LVH was 11%. After adjustment for demographics and body mass index, the odds of having LVH was higher by 2.53 (95% confidence interval, 1.28 to 4.97; P<0.01) in participants with FGF23 concentrations >=170 RU/ml compared with those with FGF23<100 RU/ml, but this association was attenuated after full adjustment. Among participants with eGFR>=45 ml/min per 1.73 m2, the prevalence of LVH was 5.4%, 11.2%, and 15.3% for those with FGF23 <100 RU/ml, 100-169 RU/ml, and >=170 RU/ml, respectively (Ptrend=0.01). When eGFR was >=45 ml/min per 1.73 m2, higher FGF23 concentrations were independently associated with LVH (fully adjusted odds ratio, 3.08 in the highest versus lowest FGF23 category; 95% confidence interval, 1.02 to 9.24; P<0.05; fully adjusted odds ratio, 2.02 per doubling of FGF23; 95% confidence interval, 1.29 to 3.17; P<0.01). By contrast, in participants with eGFR<45 ml/min per 1.73 m2, FGF23 did not associate with LVH. CONCLUSIONS: Plasma FGF23 concentration >=170 RU/ml is an independent predictor of LVH in children with eGFR>=45 ml/min per 1.73 m2. PMID- 29025793 TI - Time for change: Benefits of a plant-based diet. PMID- 29025794 TI - ? PMID- 29025795 TI - Should peanut be allowed in schools? Yes. PMID- 29025796 TI - Should peanut be allowed in schools? No. PMID- 29025797 TI - Estimating prognosis is a poor use of physicians' time. PMID- 29025798 TI - Strategy to diminish nonresponse. PMID- 29025799 TI - Correction. PMID- 29025801 TI - Zinc supplementation for pediatric pneumonia. AB - Question Among young children suffering from pneumonia, zinc deficiency has been documented in many countries. Is supplementation with zinc effective in the treatment and prevention of childhood pneumonia? Answer Several studies reported that zinc supplementation for more than 3 months was effective for preventing pneumonia in children younger than 5 years of age; however, the evidence is not sufficient to confirm its prophylactic properties if it is given for shorter periods of time. Adjunctive zinc supplementation for treatment of pneumonia has failed to show a benefit. PMID- 29025802 TI - Benign pneumatosis intestinalis: Dilemma for primary care clinicians. PMID- 29025800 TI - Approach to recurrent fever in childhood. AB - OBJECTIVE: To provide an approach to recurrent fever in childhood, explain when infections, malignancies, and immunodeficiencies can be excluded, and describe the features of periodic fever and other autoinflammatory syndromes. SOURCES OF INFORMATION: PubMed was searched for relevant articles regarding the pathogenesis, clinical findings, diagnosis, prognosis, and treatment of periodic fever and autoinflammatory syndromes. MAIN MESSAGE: Fever is a common sign of illness in children and is most frequently due to infection. However, when acute and chronic infections have been excluded and when the fever pattern becomes recurrent or periodic, the expanding spectrum of autoinflammatory diseases, including periodic fever syndromes, should be considered. Familial Mediterranean fever is the most common inherited monogenic autoinflammatory syndrome, and early recognition and treatment can prevent its life-threatening complication, systemic amyloidosis. Periodic fever, aphthous stomatitis, pharyngitis, and adenitis syndrome is the most common periodic fever syndrome in childhood; however, its underlying genetic basis remains unknown. CONCLUSION: Periodic fever syndromes and other autoinflammatory diseases are increasingly recognized in children and adults, especially as causes of recurrent fevers. Individually they are rare, but a thorough history and physical examination can lead to their early recognition, diagnosis, and appropriate treatment. PMID- 29025803 TI - Human orf: Atypical rash in an urban medical practice. PMID- 29025804 TI - Complete blood count for screening? PMID- 29025805 TI - ? PMID- 29025806 TI - Radiation and medical procedures: How do we do no harm? PMID- 29025807 TI - Examination outcomes and work locations of international medical graduate family medicine residents in Canada. AB - OBJECTIVE: To describe the postgraduate medical education (PGME) examination outcomes and work locations of international medical graduates (IMGs); and to identify differences between Canadians studying abroad (CSAs) and non-CSAs. DESIGN: Cohort study using data from the National IMG Database and Scott's Medical Database. SETTING: Canada. PARTICIPANTS: All IMGs who had first entered a family medicine residency program between 2005 and 2009, with the exclusion of US graduates, visa trainees, and fellowship trainees. MAIN OUTCOME MEASURES: We examined 4 outcomes: passing the Medical Council of Canada Qualifying Examination Part 2 (MCCQE2), obtaining Certification in Family Medicine (CCFP), working in Canada within 2 years of completing PGME training, and working in Canada in 2015. RESULTS: Of the 876 residents in the study, 96.1% passed the MCCQE2, 78.1% obtained a specialty designation, 37.7% worked in Canada within 2 years after their PGME, and 91.2% worked in Canada in 2015. Older graduates were more likely (odds ratio [OR] = 3.45; 95% CI 1.52 to 7.69) than recent graduates were to pass the MCCQE2, and residents who participated in a skills assessment program before their PGME training were more likely (OR = 9.60; 95% CI 1.29 to 71.63) than those who had not were to pass the MCCQE2. Women were more likely (OR = 1.67; 95% CI 1.20 to 2.33) to obtain a specialty designation than men were. Recent graduates were more likely (OR = 1.36; 95% CI 1.03 to 1.79) than older graduates were to work in Canada following training. Residents who were eligible for a full licence were more likely (OR = 3.72; 95% CI 2.30 to 5.99) to work in Canada in 2015 than those who were not eligible for a full licence were. CONCLUSION: While most IMGs who entered the family medicine PGME program passed the MCCQE2, 1 in 5 did not obtain Certification. Most IMG residents remain in Canada. Canadians studying abroad and non-CSA IMGs share similar examination success rates and retention rates. PMID- 29025808 TI - Learning the truth first-hand about reconciliation: Community-based research and First Nations health in rural Manitoba. PMID- 29025810 TI - Leading from where you teach: Educational leader role within the Fundamental Teaching Activities Framework. PMID- 29025812 TI - ? PMID- 29025811 TI - Lifeblood of a discipline. PMID- 29025813 TI - ? PMID- 29025814 TI - Value and limits of experience. PMID- 29025815 TI - ? PMID- 29025816 TI - ? PMID- 29025817 TI - ? PMID- 29025818 TI - Mental health and addictions capacity building for community health centres in Ontario. AB - PROBLEM ADDRESSED: In recent years, there has been increased recognition in Canada of the need to strengthen mental health services in primary health care (PHC). Collaborative models, including partnerships between PHC and specialized mental health care providers, have emerged as effective ways for improving access to mental health care and strengthening clinical capacity. Primary health care physicians and other health professionals are well positioned to facilitate the early detection of mental disorders and provide appropriate treatment and follow up care, helping to tackle stigma toward mental health problems in the process. OBJECTIVE OF PROGRAM: This 4-year mental health and addiction capacity-building initiative for PHC addressed competency needs at the individual, interprofessional, and organizational levels. PROGRAM DESCRIPTION: The program included 5 key components: a needs assessment; interprofessional education; mentoring; development of organizational mental health and addiction action plans for each participating community health centre; and creation of an advanced resource manual to support holistic and culturally competent collaborative mental health care. A comprehensive evaluation framework using a mixed-methods approach was applied from the initiation of the program. A total of 184 health workers in 10 community health centres in Ontario participated in the program, including physicians, nurses, social workers, and administrative staff. CONCLUSION: Evaluation findings demonstrated high satisfaction with the training, improved competencies, and individual behavioural and organizational changes. By building capacity to integrate holistic and culturally appropriate care, this competency based program is a promising model with strong potential to be adapted and scaled up for PHC organizations nationally and internationally. PMID- 29025819 TI - Time in therapeutic range: Warfarin anticoagulation for atrial fibrillation in a community-based practice. AB - OBJECTIVE: To evaluate the effectiveness of an outpatient, nurse-administered warfarin anticoagulation protocol for the treatment of atrial fibrillation, and to identify clinical or biographical data that predict poor international normalized ratio control. DESIGN: Retrospective cohort study. SETTING: St Paul Family Health Network in Brantford, Ont. PARTICIPANTS: A total of 150 patients with nonvalvular atrial fibrillation. MAIN OUTCOME MEASURES: Time in therapeutic range (TTR) for each patient and for the clinic overall. The groups of patients above and below a target TTR of 60% were compared by stepwise binomial logistic regression. RESULTS: A time-weighted average TTR for the clinic was determined to be 58.76%, based on 183 452 patient-days taking warfarin. The regression analysis did not find a statistically significant association between TTR and any predictors. A trend indicating a 5-fold increase in the odds of inadequate anticoagulation was observed in current smokers (odds ratio of 4.71; 95% CI 0.97 to 22.93). CONCLUSION: Compared with data from prospective randomized trials and meta-analysis, the anticoagulation protocol employed at the St Paul Family Health Network produced an average TTR near the lower end of the target threshold. Current smokers might be at greater risk of being below this target. PMID- 29025821 TI - ? PMID- 29025822 TI - ? PMID- 29025820 TI - Well-being of family medicine graduates. AB - OBJECTIVE: To determine family medicine graduates' professional and personal well being, general health status, stress levels, coping strategies, and the degree to which they felt supported or isolated in professional life; and to compare findings by sex, practice location, and location of medical school (Canadian medical graduates [CMGs] vs international medical graduates [IMGs]). DESIGN: Retrospective, cross-sectional survey. SETTING: University of Alberta in Edmonton and the University of Calgary in Alberta. PARTICIPANTS: A total of 651 graduates who completed one of the family medicine residency programs during 2006 to 2011. MAIN OUTCOME MEASURES: Using a 5-point Likert scale, graduates rated their general health status, their personal and professional well-being, their level of stress, and the degree to which they felt supported or isolated in professional life. Respondents also identified important life events, their caregiving roles, and stress-coping strategies. RESULTS: Of 651 graduates, 307 (47.2%) responded to the survey. Personal and professional well-being and general health status were rated as very good or excellent by 72.0%, 76.6%, and 74.7% of graduates, respectively. Overall, 39.3% reported high or extremely high levels of stress, with CMGs exhibiting significantly higher stress levels than IMGs (P = .02). Stress scores were inversely related to personal and professional well-being and health status. In terms of coping strategies, a significantly greater proportion of female than male graduates reported talking to colleagues (76.5% vs 64.3%; P = .026) and seeking professional counseling (18.7% vs 6.1%; P = .002). Also, a significantly greater proportion of IMGs than CMGs (52.9% vs 32.5%; P = .003), as well as those in rural (35.8%) or urban (49.3%) practices than those in metropolitan locations (30.1%) (P = .03), turned to spiritual or religious practices for stress management. Of all respondents, 54.8% felt highly or extremely supported and 18.4% felt isolated in their professional lives. CONCLUSION: While family medicine graduates are primarily healthy and have a strong sense of personal and professional well-being, many experience high levels of stress. Coping strategies generally include social contact with family, friends, or colleagues and differ by sex, whether respondents are CMGs or IMGs, and practice location. Professional isolation appears to be prevalent in both rural and urban practice locations. Physician well-being programs should include a multifaceted approach to accommodate a range of physician preferences. PMID- 29025823 TI - STANDING Collaboration: a study protocol for developing clinical standards. AB - INTRODUCTION: Despite widespread availability of clinical practice guidelines (CPGs), considerable gaps continue between the care that is recommended ('appropriate care') and the care provided. Problems with current CPGs are commonly cited as barriers to providing 'appropriate care'.Our study aims to develop and test an alternative method to keep CPGs accessible and up to date. This method aims to mitigate existing problems by using a single process to develop clinical standards (embodied in clinical indicators) collaboratively with researchers, healthcare professionals, patients and consumers. A transparent and inclusive online curated (purpose-designed, custom-built, wiki-type) system will use an ongoing and iterative documentation process to facilitate synthesis of up to-date information and make available its provenance. All participants are required to declare conflicts of interest. This protocol describes three phases: engagement of relevant stakeholders; design of a process to develop clinical standards (embodied in indicators) for 'appropriate care' for common medical conditions; and evaluation of our processes, products and feasibility. METHODS AND ANALYSIS: A modified e-Delphi process will be used to gain consensus on 'appropriate care' for a range of common medical conditions. Clinical standards and indicators will be developed through searches of national and international guidelines, and formulated with explicit criteria for inclusion, exclusion, time frame and setting. Healthcare professionals and consumers will review the indicators via the wiki-based modified e-Delphi process. Reviewers will declare conflicts of interest which will be recorded and managed according to an established protocol. The provenance of all indicators and suggestions included or excluded will be logged from indicator inception to finalisation. A mixed methods formative evaluation of our research methodology will be undertaken. ETHICS AND DISSEMINATION: Human Research Ethics Committee approval has been received from the University of South Australia. We will submit the results of the study to relevant journals and offer national and international presentations. PMID- 29025826 TI - Patient characteristics of the Accident and Emergency Department of Kenyatta National Hospital, Nairobi, Kenya: a cross-sectional, prospective analysis. AB - BACKGROUND: Resource-limited settings are increasingly experiencing a 'triple burden' of disease, composed of trauma, non-communicable diseases (NCDs) and known communicable disease patterns. However, the epidemiology of acute and emergency care is not well characterised and this limits efforts to further develop emergency care capacity. OBJECTIVE: To define the burden of disease by describing the patient population presenting to the Accident and Emergency Department (A&E) at Kenyatta National Hospital (KNH) in Kenya. METHODS: We completed a prospective descriptive assessment of patients in KNH's A&E obtained via systematic sampling over 3 months. Research assistants collected data directly from patients and their charts. Chief complaint and diagnosis codes were grouped for analysis. Patient demographic characteristics were described using the mean and SD for age and n and percentages for categorical variables. International Classification of Disease 10 codes were categorised by 2013 Global Burden of Disease Study methods. RESULTS: Data were collected prospectively on 402 patients with an average age of 36 years (SD 19), and of whom, 50% were female. Patients were most likely to arrive by taxi or bus (39%), walking (28%) or ambulance (17%). Thirty-five per cent of patients were diagnosed with NCDs, 24% with injuries and 16% with communicable diseases, maternal and neonatal conditions. Overall, head injury was the single most common final diagnosis and occurred in 32 (8%) patients. The most common patient-reported mechanism for head injury was road traffic accident (39%). CONCLUSION: This study estimates the characteristics of the A&E population at a tertiary centre in Kenya and highlights the triple burden of disease. Our findings emphasise the need for further development of emergency care resources and training to better address patient needs in resource-limited settings, such as KNH. PMID- 29025827 TI - Influence of social deprivation on provision of bariatric surgery: 10-year comparative ecological study between two UK specialist centres. AB - OBJECTIVE: To investigate the effect of residential location and socioeconomic deprivation on the provision of bariatric surgery. DESIGN: Retrospective cross sectional ecological study. SETTING: Patients resident local to one of two specialist bariatric units, in different regions of the UK, who received obesity surgery between 2003 and 2013. METHODS: Demographic data were collected from prospectively collected databases. Index of Multiple Deprivation (IMD 2010) was used as a measure of socioeconomic status. Obesity prevalences were obtained from Public Health England (2006). Patients were split into three IMD tertiles (high, median, low) and also tertiles of time. A generalised linear model was generated for each time period to investigate the effect of socioeconomic deprivation on the relationship between bariatric case count and prevalence of obesity. We used these to estimate surgical intervention provided in each population in each period at differing levels of deprivation. RESULTS: Data were included from 1163 bariatric cases (centre 1-414, centre 2-749). Incidence rate ratios (IRRs) were calculated to measure the associations between predictor and response variables. Associations were highly non-linear and changed over the 10-year study period. In general, the relationship between surgical case volume and obesity prevalence has weakened over time, with high volumes becoming less associated with prevalence of obesity. DISCUSSION: As bariatric services have matured, the associations between demand and supply factors have changed. Socioeconomic deprivation is not apparently a barrier to service provision more recently, but the positive relationships between obesity and surgical volume we would expect to find are absent. This suggests that interventions are not being taken up in the areas of need. We recommend a more detailed national analysis of the relationship between supply side and demand side factors in the provision of bariatric surgery. PMID- 29025825 TI - Comparison of the cerebroprotective effect of inhalation anaesthesia and total intravenous anaesthesia in patients undergoing cardiac surgery with cardiopulmonary bypass: a systematic review and meta-analysis. AB - OBJECTIVE: Neurological dysfunction remains a devastating postoperative complication in patients undergoing cardiac surgery with cardiopulmonary bypass (CPB), and previous studies have shown that inhalation anaesthesia and total intravenous anaesthesia (TIVA) may produce different degrees of cerebral protection in these patients. Therefore, we conducted a systematic literature review and meta-analysis to compare the neuroprotective effects of inhalation anaesthesia and TIVA. DESIGN: Searching in PubMed, EMBASE, Science Direct/Elsevier, China National Knowledge Infrastructure and Cochrane Library up to August 2016, we selected related randomised controlled trials for this meta analysis. RESULTS: A total of 1485 studies were identified. After eliminating duplicate articles and screening titles and abstracts, 445 studies were potentially eligible. After applying exclusion criteria (full texts reported as abstracts, review article, no control case, lack of outcome data and so on), 13 studies were selected for review. Our results demonstrated that the primary outcome related to S100B level in the inhalation anaesthesia group was significantly lower than in the TIVA group after CPB and 24 hours postoperatively (weighted mean difference (WMD); 95% CI (CI): -0.41(-0.81 to -0.01), -0.32 (-0.59 to -0.05), respectively). Among secondary outcome variables, mini-mental state examination scores of the inhalation anaesthesia group were significantly higher than those of the TIVA group 24 hours after operation (WMD (95% CI): 1.87 (0.82 to 2.92)), but no significant difference was found in arteriovenous oxygen content difference, cerebral oxygen extraction ratio and jugular bulb venous oxygen saturation, which were assessed at cooling and rewarming during CPB. CONCLUSION: This study demonstrates that anaesthesia with volatile agents appears to provide better cerebral protection than TIVA for patients undergoing cardiac surgery with CPB, suggesting that inhalation anaesthesia may be more suitable for patients undergoing cardiac surgery. PMID- 29025824 TI - Development of an evidence-based complex intervention for community rehabilitation of patients with hip fracture using realist review, survey and focus groups. AB - OBJECTIVES: To develop an evidence and theory-based complex intervention for improving outcomes in elderly patients following hip fracture. DESIGN: Complex intervention development (Medical Research Council (MRC) framework phase I) using realist literature review, surveys and focus groups of patients and rehabilitation teams. SETTING: North Wales. PARTICIPANTS: Surveys of therapy managers (n=13), community and hospital-based physiotherapists (n=129) and occupational therapists (n=68) throughout the UK. Focus groups with patients (n=13), their carers (n=4) and members of the multidisciplinary rehabilitation teams in North Wales (n=13). RESULTS: The realist review provided understanding of how rehabilitation interventions work in the real-world context and three programme theories were developed: improving patient engagement by tailoring the intervention to individual needs; reducing fear of falling and improving self efficacy to exercise and perform activities of daily living; and coordination of rehabilitation delivery. The survey provided context about usual rehabilitation practice; focus groups provided data on the experience, acceptability and feasibility of rehabilitation interventions. An intervention to enhance usual rehabilitation was developed to target these theory areas comprising: a physical component consisting of six additional therapy sessions; and a psychological component consisting of a workbook to enhance self-efficacy and a patient-held goal-setting diary for self-monitoring. CONCLUSIONS: A realist approach may have advantages in the development of evidence-based interventions and can be used in conjunction with other established methods to contribute to the development of potentially more effective interventions. A rehabilitation intervention was developed which can be tested in a future randomised controlled trial (MRC framework phases II and III). TRIAL REGISTRATION NUMBER: ISRCTN22464643, Pre results. PMID- 29025828 TI - Diurnal cortisol and mental well-being in middle and older age: evidence from four cohort studies. AB - OBJECTIVES: We conducted an individual participant meta-analysis to test the hypothesis that cortisol patterns indicative of dysregulated hypothalamic pituitary-adrenal axis functioning would be prospectively associated with poorer well-being at follow-up. SETTING: Four large UK-based cohort studies. PARTICIPANTS: Those providing valid salivary or serum cortisol samples (n=7515 for morning cortisol; n=1612 for cortisol awakening response) at baseline (age 44 82) and well-being data on the Warwick Edinburgh Mental Wellbeing Scale at follow up (0-8 years) were included. RESULTS: Well-being was not associated with morning cortisol, diurnal slope or awakening response though a borderline association with evening cortisol was found. Adjusting for sex and follow-up time, each 1 SD increase in evening cortisol was associated with a -0.47 (95% CI -1.00 to 0.05) point lower well-being. This was attenuated by adjustment for body mass index, smoking and socioeconomic position. Between-study heterogeneity was low. CONCLUSIONS: This study does not support the hypothesis that diurnal cortisol is prospectively associated with well-being up to 8 years later. However, replication in prospective studies with cortisol samples over multiple days is required. PMID- 29025829 TI - Is an opportunistic primary care-based intervention for non-responders to bowel screening feasible and acceptable? A mixed-methods feasibility study in Scotland. AB - OBJECTIVES: We aimed to test whether a brief, opportunistic intervention in general practice was a feasible and acceptable way to engage with bowel screening non-responders. DESIGN: This was a feasibility study testing an intervention which comprised a brief conversation during routine consultation, provision of a patient leaflet and instructions to request a replacement faecal occult blood test kit. A mixed-methods approach to evaluation was adopted. Data were collected from proformas completed after each intervention, from the Bowel Screening Centre database and from questionnaires. Semi-structured interviews were carried out. We used descriptive statistics, content and framework analysis to determine intervention feasibility and acceptability. PARTICIPANTS: Bowel screening non responders (as defined by the Scottish Bowel Screening Centre) and primary care professionals working in five general practices in Lothian, Scotland. PRIMARY AND SECONDARY OUTCOME MEASURES: Several predefined feasibility parameters were assessed, including numbers of patients engaging in conversation, requesting a replacement kit and returning it, and willingness of primary care professionals to deliver the intervention. RESULTS: The intervention was offered to 258 patients in five general practices: 220 (87.0%) engaged with the intervention, 60 (23.3%) requested a new kit, 22 (8.5%) kits were completed and returned. Interviews and questionnaires suggest that the intervention was feasible, acceptable and consistent with an existing health prevention agenda. Reported challenges referred to work-related pressures, time constraints and practice priorities. CONCLUSIONS: This intervention was acceptable and resulted in a modest increase in non-responders participating in bowel screening, although outlined challenges may affect sustained implementation. The strategy is also aligned with the increasing role of primary care in promoting bowel screening. PMID- 29025830 TI - Randomised controlled pilot trial of an exercise plus behaviour change intervention in people with multiple sclerosis: the Step it Up study. AB - OBJECTIVE: To investigate feasibility of multiple sclerosis (MS) exercise guidelines for inactive people with MS (PwMS) and to examine preliminary efficacy for walking. To investigate effect of augmenting that intervention with education based on social cognitive theory (SCT). DESIGN: Pilot multicentre, double-blind, randomised, parallel, controlled trial. SETTING: Community-delivered programme. PARTICIPANTS: Sixty-five physically inactive PwMS walked independently, scored 0 3 on the Patient Determined Disease Steps Scale, had no MS relapse or change in MS medication in 12 weeks. INTERVENTIONS: 10-week exercise plus SCT education (SCT) compared with exercise plus attention control education (CON). OUTCOME MEASURES: Six-Minute Walk Test (6MWT), Timed Up and Go (TUG) test and Multiple Sclerosis Walking Scale-12 (MSWS-12). RESULTS: 174 expressed interest, 92 were eligible and 65 enrolled (SCT, n=32; CON, n=33). The intervention was feasible and delivered as intended. 68% of SCT group and 50% of control group met the exercise guidelines after intervention. Using linear mixed effects models, intention-to-treat basis, there was insufficient evidence for difference between the groups over the trial (6MWT, p=0.30; TUG, p=0.4; MSWS-12, p=0.8). Using secondary analysis of a cohort with data for>=3 assessments (SCT, n=21; CON, n=20), there was significant treatment effect favouring the intervention group (p=0.04) with mean effect for 6MWT 39.0 m (95% CI 2.26 to 75.73) at 12 weeks and 40.0 m (95% CI 2.3 to 77.8) at 36 weeks. Both groups improved significantly in 6MWT following 10-week intervention (SCT, mean ?=83.02, SD=60.1, p<=0.01; CON, mean ?=56.92, SD=73.5, p<=0.01), TUG (SCT, ?=-0.70, SD=1.25, p<=0.01; CON, ?= 0.54, SD=0.95, p<=0.01) and MSWS-12 (SCT, ?=-8.03, SD=16.18, p=0.02; CON, ?= 0.86, SD=18.74, p=0.81). CONCLUSIONS: A 10-week exercise programme based on the MS exercise guidelines for improving walking in previously inactive PwMS was feasible. There is marginal evidence of a treatment effect in favour of the exercise plus SCT intervention at 12 and 36 weeks. TRIAL REGISTRATION NUMBER: NCT02301442; Results. PMID- 29025831 TI - Spending on social and public health services and its association with homicide in the USA: an ecological study. AB - OBJECTIVE: To examine whether state-level spending on social and public health services is associated with lower rates of homicide in the USA. DESIGN: Ecological study. SETTING: USA. PARTICIPANTS: All states in the USA and the District of Columbia for which data were available (n=42). PRIMARY OUTCOME MEASURE: Homicide rates for each state were abstracted from the US Department of Justice Federal Bureau of Investigation's Uniform Crime Reporting. RESULTS: After adjusting for potential confounding variables, we found that every $10 000 increase in spending per person living in poverty was associated with 0.87 fewer homicides per 100 000 population or approximately a 16% decrease in the average homicide rate (estimate=-0.87, SE=0.15, p<0.001). Furthermore, there was no significant effect in the quartile of states with the highest percentages of individuals living in poverty but significant effects in the quartiles of states with lower percentages of individuals living in poverty. CONCLUSIONS: Based on our findings, spending on social and public health services is associated with significantly lower homicide rates at the state level. Although we cannot infer causality from this research, such spending may provide promising avenues for homicide reduction in the USA, particularly among states with lower levels of poverty. PMID- 29025832 TI - Feasibility and acceptability of training community health workers in ear and hearing care in Malawi: a cluster randomised controlled trial. AB - OBJECTIVE: To assess the feasibility and acceptability of training community health workers (CHWs) in ear and hearing care, and their ability to identify patients with ear and hearing disorders. DESIGN: Cluster randomised controlled trial (RCT). SETTING: Health centres in Thyolo district, Malawi. PARTICIPANTS: Ten health centres participated, 5 intervention (29 CHWs) and 5 control (28 CHWs). INTERVENTION: Intervention CHWs received 3 days of training in primary ear and hearing care, while among control CHWs, training was delayed for 6 months. Both groups were given a pretest that assessed knowledge about ear and hearing care, only the intervention group was given the posttest on the third day of training. The intervention group was given 1 month to identify patients with ear and hearing disorders in their communities, and these people were screened for hearing disorders by ear, nose and throat clinical specialists. OUTCOME MEASURES: Primary outcome measure was improvement in knowledge of ear and hearing care among CHWs after the training. Secondary outcome measures were number of patients with ear or hearing disorders identified by CHWs and number recorded at health centres during routine activities, and the perceived feasibility and acceptability of the intervention. RESULTS: The average overall correct answers increased from 55% to 68% (95% CI 65 to 71) in the intervention group (p<0.001). A total of 1739 patients with potential ear and hearing disorders were identified by CHWs and 860 patients attended the screening camps, of whom 400 had hearing loss (73 patients determined through bilateral fail on otoacoustic emissions, 327 patients through audiometry). Where cause could be determined, the most common cause of ear and hearing disorders was chronic suppurative otitis media followed by impacted wax. The intervention was perceived as feasible and acceptable to implement. CONCLUSIONS: Training was effective in improving the knowledge of CHW in ear and hearing care in Malawi and allowing them to identify patients with ear and hearing disorders. This intervention could be scaled up to other CHWs in low income and middle-income countries. TRIAL REGISTRATION NUMBER: Pan African Clinical Trial Registry (201705002285194); Results. PMID- 29025833 TI - Prevalence and incidence of hypertension in the global HIV-infected population: a systematic review and meta-analysis protocol. AB - INTRODUCTION: Hypertension, representing one of the most frequent cardiovascular risk factors, is thought to increase in individuals living with HIV as well as in general population, but summarised global data on the topic are scarce. We conduct this systematic review and meta-analysis to assess the prevalence/incidence of hypertension in the global HIV-infected population. METHODS AND ANALYSIS: This review will include observational studies conducted among HIV-infected people, which reported prevalence/incidence of hypertension or enough data for its appraisal. We will consider published and unpublished studies from 1 January 2007 to 31 May 2017. Relevant records will be searched using PubMed/Medline, Global Index Medicus, Web of Science and EMBASE. Reference lists of eligible papers and relevant review articles will be screened. Two investigators will independently screen, select studies and extract data, with discrepancies resolved by consensus or by arbitration of a third investigator. Methodological quality of the 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. To keep the effect of studies with extremely small or extremely large estimates on the overall estimate to a minimum, the variance of the study-specific prevalence/incidence will be stabilised with the Freeman-Tukey single arcsine transformation. The heterogeneity will be evaluated by the chi2 test on Cochrane's Q statistic. Results will be presented by geographic region, income and antiretroviral therapy status. ETHICS AND DISSEMINATION: 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 peer reviewed journals. TRIAL REGISTRATION NUMBER: CRD42016051684. PMID- 29025834 TI - Study protocol for a randomised controlled trial: harmonising optimal strategy for treatment of coronary artery stenosis - coronary intervention with next generation drug-eluting stent platforms and abbreviated dual antiplatelet therapy (HOST-IDEA) trial. AB - INTRODUCTION: We have recently seen the introduction of newer generation drug eluting stents with ultrathin struts that use advanced polymer technologies. However, the efficacy and safety of these newest stents have not yet been fully explored. In addition, there are still controversies over the optimal duration of dual antiplatelet therapy (DAPT) after stent implantation, particularly for ultrathin stents with the newest polymer technologies. METHODS AND ANALYSIS: The HOST-IDEA trial is a randomised, open-label, multicentre, non-inferiority trial and the first study to directly compare two of these ultrathin sirolimus-eluting stents: Orsiro stent with biodegradable polymer, and polymer-free Coroflex ISAR (CX-ISAR) stent. This study has a scheme of 2*2 factorial design according to the stent type and DAPT duration (3 vs 12 months). A total of 2152 patients will be randomised and stratified to demonstrate the non-inferiority of CX-ISAR to Orsiro, or of the abbreviated DAPT duration to the conventional 12 months (both in 1:1 ratio). For the comparison of stent type, the primary endpoint is target lesion failure (TLF), which is a composite of cardiac death, target vessel related myocardial infarction and clinically driven target lesion revascularisation. For the comparison of DAPT duration, the net adverse clinical event is the coprimary endpoint, which is defined as a composite of TLF, definite/probable stent thrombosis and major bleeding. ETHIC APPROVAL AND DISSEMINATION: All the institutions involved in this study are required to have ethical approval prior to patient enrolment. This multicentre study will recruit patients through competitive registration, but institutions that have not yet obtained ethical approvals have made it impossible to enrol patients in a centralised web database. The final results will be presented at relevant international conferences and will be materialised in the form of papers. TRIAL REGISTRATION NUMBER: NCT02601157; Pre-results. PMID- 29025835 TI - The CLIMB (Complex Lipids In Mothers and Babies) study: protocol for a multicentre, three-group, parallel randomised controlled trial to investigate the effect of supplementation of complex lipids in pregnancy, on maternal ganglioside status and subsequent cognitive outcomes in the offspring. AB - INTRODUCTION: Complex lipids are important constituents of the central nervous system. Studies have shown that supplementation with complex milk lipids (CML) in pregnancy may increase the level of fetal gangliosides (GA), with the potential to improve cognitive outcomes. METHODS AND ANALYSIS: We aim to recruit approximately 1500 pregnant women in the first trimester (11-14 weeks) and randomise them into one of the three treatment groups: standard maternal milk formulation, CML-enhanced maternal milk formulation or no maternal milk intervention with standard pregnancy advice (ie, the standard care). Maternal lifestyle and demographic data will be collected throughout the pregnancy, as well as biological samples (eg, blood, hair, urine, buccal smear, cord blood, cord and placenta samples). Data from standard obstetric care recorded in hospital maternity notes (eg, ultrasound reports, results of oral glucose tolerance test and pregnancy outcome data) will also be extracted. Postnatal follow-up will be at 6 weeks and 12 months of age, at which point infant cognitive development will be assessed (Bayley Scales of Infant Development I). ETHICS AND DISSEMINATION: This project was approved by the Ethics Committee of Chongqing Medical University. Dissemination of findings will take the form of publications in peer-reviewed journals and presentations at national and international conferences. TRIAL REGISTRATION NUMBER: ChiCTR-IOR-16007700; Pre results. PMID- 29025836 TI - Assessment of potential predictors of calretinin and mesothelin to improve the diagnostic performance to detect malignant mesothelioma: results from a population-based cohort study. AB - OBJECTIVES: Mesothelin and calretinin are blood-based markers for malignant mesothelioma. The objective of this study was to analyse the markers in plasma samples from cancer-free men and to identify factors influencing their concentrations to minimise false-positive test results when using these markers for the early detection of malignant mesothelioma. SETTING: The present analyses used data and archived blood samples of the population-based Heinz Nixdorf Recall Study among elderly people collected from 2011 to 2014. PARTICIPANTS: A total of 569 men (median age 70 years) without a malignant disease at the time of blood sampling were selected for these analyses. PRIMARY AND SECONDARY OUTCOME: Mesothelin and calretinin concentration in plasma samples. RESULTS: We observed 24 mesothelin concentrations >=1.5 nM (specificity 95.8%, 95% CI 93.8% to 97.2%) and 34 calretinin concentrations >=1.0 ng/mL (specificity 94.0%, 95% CI 91.7% to 95.7%). Only five men had both markers above these cut-offs. Renal dysfunction and hypertension were major predictors of elevated mesothelin in addition to age. Regarding calretinin, the effect of renal dysfunction was slightly weaker and hypertension was not associated with increased concentrations. However, a diagnosis of cancer after blood collection and bronchial asthma were associated with positive calretinin results. CONCLUSIONS: The combined determination of mesothelin and calretinin results in only few false-positive marker tests. Both markers are mainly influenced by renal dysfunction. The determination of cystatin C concentrations may be informative when interpreting the test results. PMID- 29025837 TI - Effects of Lactobacillus rhamnosus GG and Bifidobacterium lactis Bb12 on beta cell function in children with newly diagnosed type 1 diabetes: protocol of a randomised controlled trial. AB - INTRODUCTION: Recent evidence has demonstrated that, among other factors, dysbiosis (imbalances in the composition and function of the gut microbiota) may be relevant in the development of type 1 diabetes (T1D). Thus, gut microbiota may be a target for improving outcomes in subjects with T1D. The aim of the study is to examine the effects of Lactobacillus rhamnosus GG and Bifidobacterium lactis Bb12 on beta-cell function in children with newly diagnosed T1D. METHODS AND ANALYSIS: A total of 96 children aged 8 to 17 years with newly diagnosed T1D, confirmed by clinical history and the presence of at least one positive autoantibody, will be enrolled in a double-blind, randomised, placebo-controlled trial in which they will receive L. rhamnosus GG and B. lactis Bb12 at a dose of 109 colony-forming units or an identically appearing placebo, orally, once daily, for 6 months. The follow-up will be for 12 months. The primary outcome measures will be the area under the curve of the C-peptide level during 2-hour responses to a mixed meal. ETHICS AND DISSEMINATION: The Bioethics Committee approved the study protocol. The findings of this trial will be submitted to a peer-reviewed paediatric journal. Abstracts will be submitted to relevant national and international conferences. TRIAL REGISTRATION NUMBER: NCT03032354; Pre-results. PMID- 29025838 TI - Association between childhood allergic diseases, educational attainment and occupational status in later life: systematic review protocol. AB - INTRODUCTION: Childhood allergic diseases may prevent affected children from achieving their academic potential. Potential mechanisms include absence from school due to illness and medical appointments. Experience of symptoms in classes or leisure time, and stigma associated with visible signs and symptoms, including skin disease, requirements for medication during school time or the need for specific diets, may also contribute to reduced educational attainment. Studies have investigated the association between specific allergic diseases and educational attainment. The aim of this study is to systematically review the literature on allergic diseases, educational attainment and occupational status, and if possible, calculate meta-analytic summary estimates for the associations. METHODS: Systematic electronic searches in Medline, EMBASE, Cochrane, Cumulative Index to Nursing & Allied Health Literature (CINAHL), PsycINFO and education Resources Information Center (ERIC); hand search in reference lists of included papers and conference reports; search for unpublished studies in clinical trial registers and the New York Academy of Medicine Grey Literature Report; data extraction; and study quality assessment (Newcastle-Ottawa Scale) will be performed. ANALYSIS: Data will be summarised descriptively, and meta-analysis including meta-regression to explore sources of heterogeneities will be performed if possible. ETHICS AND DISSEMINATION: Dissemination in a peer-reviewed, open access, international scientific journal is planned. PROSPERO REGISTRATION NUMBER: CRD42017058036. PMID- 29025839 TI - Family attitudes, actions, decisions and experiences following implementation of deemed consent and the Human Transplantation (Wales) Act 2013: mixed-method study protocol. AB - INTRODUCTION: The Human Transplantation (Wales) Act 2013 (the Act) introduced a 'soft opt-out' system of organ donation on 1 December 2015. Citizens are encouraged to make their organ donation decision known during their lifetime. In order to work, the Act and media campaign need to create a context, whereby organ donation becomes the norm, and create a mechanism for people to behave as intended (formally register their decision; consider appointing a representative; convey their donation decision to their families and friends or do nothing-deemed consent). In addition, family members/appointed representatives need to be able to put their own views aside to support the decision of their loved one. The aim of this study is to evaluate initial implementation, outcomes and impact on families and appointed representatives who were approached about organ donation during the first 18 months. METHODS AND ANALYSIS: Prospective mixed-method coproductive study undertaken with National Health Service Blood and Transplant (NHSBT), and multiple patient/public representatives. The study is designed to collect information on all cases who meet specified criteria (>=18 years, deceased person voluntarily resident in Wales and died in Wales or England) whose family were approached between 1 December 2015 and 31 June 2017). Data for analysis include: NHSBT routinely collected anonymised audit data on all cases; Specialist Nurse in Organ Donation (SNOD) completed anonymised form for all cases documenting their perception of the families' understanding of the Act, media campaign and outcome of the donation approach; questionnaires and depth interviews with any family member or appointed representative (minimum 50 cases). Additional focus groups and interviews with SNODs. Anonymised donation outcomes and registration activity reports for Wales provide additional context. ETHICS AND DISSEMINATION: Approved by NHSBT Research, Innovation and Technology Advisory Group on 23 October 2015; Wales Research Ethics Committee 5 (IRAS190066; Rec Reference 15/WA/0414) on 25 November 2015 and NHSBT R&D Committee (NHSBT ID: AP 15-02) on 24 November 2015. REGISTRATION: The protocol is registered on the Health and Care Research Wales Clinical Research Portfolio. Study ID number 34396, www.ukctg.nihr.ac.uk. PMID- 29025840 TI - A county-level cross-sectional analysis of positive deviance to assess multiple population health outcomes in Indiana. AB - OBJECTIVE: To test a positive deviance method to identify counties that are performing better than statistical expectations on a set of population health indicators. DESIGN: Quantitative, cross-sectional county-level secondary analysis of risk variables and outcomes in Indiana. Data are analysed using multiple linear regression to identify counties performing better or worse than expected given traditional risk indicators, with a focus on 'positive deviants' or counties performing better than expected. PARTICIPANTS: Counties in Indiana (n=92) constitute the unit of analysis. MAIN OUTCOME MEASURES: Per cent adult obesity, per cent fair/poor health, low birth weight per cent, per cent with diabetes, years of potential life lost, colorectal cancer incidence rate and circulatory disease mortality rate. RESULTS: County performance that outperforms expectations is for the most part outcome specific. But there are a few counties that performed particularly well across most measures. CONCLUSIONS: The positive deviance approach provides a means for state and local public health departments to identify places that show better health outcomes despite demographic, social, economic or behavioural disadvantage. These places may serve as case studies or models for subsequent investigations to uncover best practices in the face of adversity and generalise effective approaches to other areas. PMID- 29025841 TI - Neighbourhood characteristics and mental disorders in three Chinese cities: multilevel models from the World Mental Health Surveys. AB - OBJECTIVES: The rapid growth of urban areas in China in the past few decades has introduced profound changes in family structure and income distribution that could plausibly affect mental health. Although multilevel studies of the influence of area-level socioeconomic factors on mental health have become more common in other parts of the world, a study of this sort has not been carried out in Chinese cities. Our objectives were to examine the associations of two key neighbourhood-level variables-median income and percentage of married individuals living in the neighbourhood-with mental disorders net of individual-level income and marital status in three Chinese cities. SETTING: Household interviews in Beijing, Shanghai and Shenzhen, PRC, as part of the cross-sectional World Mental Health Surveys. PARTICIPANTS: 4072 men and women aged 18-88 years. PRIMARY AND SECONDARY OUTCOME MEASURES: Lifetime and past-year internalising and externalising mental disorders. RESULTS: Each one-point increase in neighbourhood level percentage of married residents was associated with a 1% lower odds of lifetime (p=0.024) and 2% lower odds of past-year (p=0.008) individual-level externalising disorder, net of individual-level marital status. When split into tertiles, individuals living in neighbourhoods in the top tertile of percentage of married residents had 54% lower odds of a past-year externalising disorder (OR=0.46, 95% CI: 0.24 to 0.87) compared with those in the bottom tertile. Neighbourhood-level marital status was not statistically associated with either lifetime or past-year internalising disorders. Neighbourhood-level income was not statistically associated with odds of either internalising or externalising disorders. CONCLUSIONS: The proportion of married residents in respondents' neighbourhoods was significantly inversely associated with having externalising mental disorders in this sample of Chinese cities. Possible mechanisms for this finding are discussed and related to social causation, social selection and social control theories. Future work should examine these relationships longitudinally. PMID- 29025842 TI - Discrepancies between ClinicalTrials.gov recruitment status and actual trial status: a cross-sectional analysis. AB - OBJECTIVES: To determine the accuracy of the recruitment status listed on ClinicalTrials.gov as compared with the actual trial status. DESIGN: Cross sectional analysis. SETTING: Random sample of interventional phase 2-4 clinical trials registered between 2010 and 2012 on ClinicalTrials.gov. PRIMARY OUTCOME MEASURE: For each trial which was listed within ClinicalTrials.gov as ongoing, two investigators performed a comprehensive literature search for evidence that the trial had actually been completed. For each trial listed as completed or terminated early by ClinicalTrials.gov, we compared the date that the trial was actually concluded with the date the registry was updated to reflect the study's conclusion status. RESULTS: Among the 405 included trials, 92 had a registry status indicating that study activity was either ongoing or the recruitment status was unknown. Of these, published results were available for 34 (37%). Among the 313 concluded trials, the median delay between study completion and a registry update reflecting that the study had ended was 141 days (IQR 48-419), with delays of over 1 year present for 29%. In total, 125 trials (31%) either had a listed recruitment status which was incorrect or had a delay of more than 1 year between the time the study was concluded and the time the registry recruitment status was updated. CONCLUSIONS: At present, registry recruitment status information in ClinicalTrials.gov is often outdated or wrong. This inaccuracy has implications for the ability of researchers to identify completed trials and accurately characterise all available medical knowledge on a given subject. PMID- 29025843 TI - Preparing the prescription: a review of the aim and measurement of social referral programmes. AB - OBJECTIVE: Our aim is to review, and qualitatively evaluate, the aims and measures of social referral programmes. Our first objective is to identify the aims of social referral initiatives. Our second objective is to identify the measures used to evaluate whether the aims of social referral were met. DESIGN: Literature review. BACKGROUND: Social referral programmes, also called social prescribing and emergency case referral, link primary and secondary healthcare with community services, often under the guise of decreasing health system costs. METHOD: Following the PRISMA guidelines, we undertook a literature review to address that aim. We searched in five academic online databases and in one online non-academic search engine, including both academic and grey literature, for articles referring to 'social prescribing' or 'community referral'. RESULTS: We identified 41 relevant articles and reports. After extracting the aims, measures and type of study, we found that most social referral programmes aimed to address a wide variety of system and individual health problems. This included cost savings, resource reallocation and improved mental, physical and social well being. Across the 41 studies and reports, there were 154 different kinds of measures or methods of evaluation identified. Of these, the most commonly used individual measure was the Warwick-Edinburgh Mental Well-being Scale, used in nine studies and reports. CONCLUSIONS: These inconsistencies in aims and measures used pose serious problems when social prescribing and other referral programmes are often advertised as a solution to health services-budgeting constraints, as well as a range of chronic mental and physical health conditions. We recommend researchers and local community organisers alike to critically evaluate for whom, where and why their social referral programmes 'work'. PMID- 29025844 TI - Investigating Canadian parents' HPV vaccine knowledge, attitudes and behaviour: a study protocol for a longitudinal national online survey. AB - INTRODUCTION: Human papillomavirus (HPV), a sexually transmitted infection, can cause anogenital warts and a number of cancers. To prevent morbidity and mortality, three vaccines have been licensed and are recommended by Canada's National Advisory Committee on Immunisation (for girls since 2007 and boys since 2012). Nevertheless, HPV vaccine coverage in Canada remains suboptimal in many regions. This study will be the first to concurrently examine the correlates of HPV vaccine decision-making in parents of school-aged girls and boys and evaluate changes in parental knowledge, attitudes and behaviours over time. METHODS AND ANALYSIS: Using a national, online survey utilising theoretically driven constructs and validated measures, this study will identify HPV vaccine coverage rates and correlates of vaccine decision-making in Canada at two time points (August-September 2016 and June-July 2017). 4606 participants will be recruited to participate in an online survey through a market research and polling firm using email invitations. Data cleaning methods will identify inattentive or unmotivated participants. ETHICS AND DISSEMINATION: The study received research ethics board approval from the Research Review Office, Integrated Health and Social Services University Network for West-Central Montreal (CODIM-FLP-16-219). The study will adopt a multimodal approach to disseminate the study's findings to researchers, clinicians, cancer and immunisation organisations and the public in Canada and internationally. PMID- 29025845 TI - A multicentre randomised controlled trial assessing whether MRI-targeted biopsy is non-inferior to standard transrectal ultrasound guided biopsy for the diagnosis of clinically significant prostate cancer in men without prior biopsy: a study protocol. AB - INTRODUCTION: The classical pathway for the diagnosis of prostate cancer is transrectal ultrasound-guided (TRUS) biopsy of the prostate initiated on the basis of a raised prostate-specific antigen (PSA). An alternative pathway is to perform multi-parametricMRI (MPMRI) to localise cancer and to use this information to influence the decision for, and conduct of, a subsequent biopsy, known as an MPMRI-targeted biopsy. An MPMRI pathway has been shown to detect a similar or greater amount of clinically significant cancer as TRUS biopsy but has several advantages, including the potential to biopsy fewer men with fewer cores. METHODS: This is a pragmatic, international, multicentre, parallel group randomised study in which men are allocated in a 1:1 ratio to an MPMRI or TRUS biopsy pathway. This study will assess whether an MPMRI-targeted biopsy approach is non-inferior to a standard TRUS biopsy approach in the diagnosis of clinically significant cancer.Men in the MRI arm will undergo targeted biopsy of suspicious areas only and no biopsy will be carried out if the MRI is non-suspicious. Men in the TRUS biopsy will undergo a standard 10-12-core TRUS biopsy. The main inclusion criteria are a serum PSA <=20 ng/mL, a digital rectal examination finding of T2 or less and no prior prostate biopsy.The primary outcome is the proportion of men with clinically significant cancer detected. A sample size of at least 470 patients is required. Key secondary outcomes include the proportion of clinically insignificant cancer detected. ETHICS AND DISSEMINATION: Ethical approval was obtained from the National Research Ethics Committee East Midlands, Leicester (15/EM/0188). Results of this study will be disseminated through national and international papers. The participants and relevant patient support groups will be informed about the results of the study. REGISTRATION DETAILS: NCT02380027; Pre-results. PMID- 29025846 TI - Cohort profile for the MASTERMIND study: using the Clinical Practice Research Datalink (CPRD) to investigate stratification of response to treatment in patients with type 2 diabetes. AB - PURPOSE: This is a retrospective cohort study using observational data from anonymised primary care records. We identify and extract all patients with type 2 diabetes and associated clinical data from the Clinical Practice Research Datalink (CPRD) to inform models of disease progression and stratification of treatment. PARTICIPANTS: Data were extracted from CPRD on 8 August 2016. The initial data set contained all patients (n=313 485) in the database who had received a type 2 diabetes medication. Criteria were applied to identify and exclude those with type 1 diabetes, polycystic ovarian syndrome or other forms of diabetes (n=40 204), and for data quality control (n=12). We identified 251 338 patients for inclusion in future analyses of diabetes progression and treatment response. FINDINGS TO DATE: For 6-month response to treatment, measured by change in glycated haemoglobin (HbA1c), we have 91 765 patients with 119 785 treatment response episodes. The greatest impact on reduction of HbA1c occurs with first line and second-line treatments, metformin and sulfonylurea. Patients moving to third-line treatments tend to have greater weights and higher body mass index. We have investigated the impact of non-adherence to commonly used glucose-lowering medications on HbA1c. For baseline-adjusted HbA1c change over 1 year, non adherent patients had lower HbA1c reductions than adherent patients, with mean and 95% CI of -4.4 (-4.7 to -4.0) mmol/mol (-0.40 (-0.43 to -0.37) %). FUTURE PLANS: Findings from studies using these data will help inform future treatment plans and guidelines. Additional data are added with updates from CPRD. This will increase the numbers of patients on newer medications and add more data on those already receiving treatment. There are several ongoing studies investigating different hypotheses regarding differential response to treatment and progression of diabetes. For side effects, links to Hospital Episode Statistics data, where severe events such as hypoglycaemia will be recorded, will also be explored. PMID- 29025847 TI - Exploring the role of the nurse manager in supporting point-of-care nurses' adoption of electronic health records: protocol for a qualitative research study. AB - INTRODUCTION: An increasing number of electronic health record (EHR) systems have been implemented in clinical practice environments where nurses work. Findings from previous studies have found that a number of intended benefits of the technology have not yet been realised to date, partially due to poor system adoption among health professionals such as nurses. Previous studies have suggested that nurse managers can support the effective adoption and use of the technology by nurses. However, no known studies have identified what role nurse managers have in supporting technology adoption, nor the specific strategies that managers can employ to support their staff. Therefore, the purpose of this research is to better understand the role of the nurse manager in point-of-care nurses' use of EHRs, and to identify strategies that may be effective in supporting clinical adoption. METHODS AND ANALYSIS: This study will use a qualitative descriptive design. Interviews with both nurse managers and point-of care nursing staff will be conducted in a Canadian mental health and addiction healthcare organisation where an EHR has been implemented. A semistructured interview guide will be used, and interviews will be audio recorded. Transcripts will be analysed using a directed content analysis technique. Strategies to ensure the trustworthiness of the data analysis procedure and findings will be employed. ETHICS AND DISSEMINATION: Ethical approval for this study has been obtained. Dissemination strategies may include a paper submission to a peer reviewed journal, a conference submission and meetings to share findings with the study site leadership team. Findings from this research will be used to inform a future study which aims to assess levels of competencies and perform a psychometric analysis of the Nursing Informatics Competency Assessment for the Nurse Leader instrument in a Canadian context. PMID- 29025848 TI - Ectopic pregnancy: exploration of its global research architecture using density equalising mapping and socioeconomic benchmarks. AB - OBJECTIVE: About 2% of all pregnancies are complicated by the implantation of the zygote outside the uterine cavity and termed ectopic pregnancy. Whereas a multitude of guidelines exists and related research is constantly growing, no thorough assessment of the global research architecture has been performed yet. Hence, we aim to assess the associated scientific activities in relation to geographical and chronological developments, existing research networks and socioeconomic parameters. DESIGN: Retrospective, descriptive study. SETTING: On the basis of the NewQIS platform, scientometric methods were combined with novel visualising techniques such as density-equalising mapping to assess the scientific output on ectopic pregnancy. Using the Web of Science, we identified all related entries from 1900 to 2012. RESULTS: 8040 publications were analysed. The USA and the UK were dominating the field in regard to overall research activity (2612 and 723 publications), overall citation numbers and country specific H-Indices (US: 80, UK: 42). Comparison to economic power of the most productive countries demonstrated that Israel invested more resources in ectopic pregnancy-related research than other nations (853.41 ectopic pregnancy-specific publications per 1000 billlion US$ gross domestic product (GDP)), followed by the UK (269.97). Relation to the GDP per capita index revealed 49.3 ectopic pregnancy specific publications per US$1000 GDP per capita for the USA in contrast to 17.31 for the UK. Semiqualitative indices such as country-specific citation rates ranked Switzerland first (24.7 citations per ectopic pregnancy-specific publication), followed by the Scandinavian countries Finland and Sweden. Low income countries did not exhibit significant research activities. CONCLUSIONS: This is the first in-depth analysis of global ectopic pregnancy research since 1900. It offers unique insights into the global scientific landscape. Besides the USA and the UK, Scandinavian countries and Switzerland can also be regarded as leading nations with regard to their relative socioeconomic input. PMID- 29025852 TI - Correction: Attitudes and perceptions of GPs and community pharmacists towards their role in the prevention of bisphosphonate-related osteonecrosis of the jaw: a qualitative study in the North East of England. PMID- 29025849 TI - The association between adverse childhood experiences and traumatic brain injury/concussion in adulthood: A scoping review protocol. AB - INTRODUCTION: Exposure to adverse childhood experiences (ACEs) is a significant risk factor for physical and mental illnesses later in life. Concussion or traumatic brain injury is a challenging condition where preinjury factors may interact to affect recovery. The association between ACEs and traumatic brain injury/concussion is not well mapped in any previous reviews of the literature. Using a scoping review methodology, the research question that will be addressed is: what is known from the existing literature about the association between ACEs and traumatic brain injury/concussion in adults? METHODS AND ANALYSIS: The methodological frameworks outlined by Arksey and O'Malley and Levac et al will be used. All original studies in English published since 2007 investigating ACEs and traumatic brain injury/concussion outcomes will be included with no limitations on study type. Literature search strategies will be developed using medical subject headings and text words related to ACEs and traumatic brain injury/concussions. Multiple electronic databases will be searched. Two independent reviewers will screen titles and abstracts for full-text review and full texts for final inclusion. Two independent reviewers will extract data on study characteristics for ACE exposure and traumatic brain injury/concussion outcomes. Extracted data will be summarised quantitatively using numerical counts and qualitatively using thematic analysis. DISSEMINATION: This review will identify knowledge gaps on the associations between ACEs and traumatic brain injury/concussion and promote further research. Knowledge translation will occur throughout the review process with dissemination of project findings to stakeholders at the local, national and international levels. PMID- 29025853 TI - Concomitant administration of methotrexate does not improve efficacy of intra articular joint injections in patients with oligoarticular juvenile idiopathic arthritis. PMID- 29025851 TI - Investigating Bordetella pertussis colonisation and immunity: protocol for an inpatient controlled human infection model. AB - INTRODUCTION: We summarise an ethically approved protocol for the development of an experimental human challenge colonisation model. Globally Bordetella pertussis is one of the leading causes of vaccine-preventable death. Many countries have replaced whole cell vaccines with acellular vaccines over the last 20 years during which pertussis appears to be resurgent in a number of countries in the developed world that boast high immunisation coverage. The acellular vaccine provides relatively short-lived immunity and, in contrast to whole cell vaccines, may be less effective against colonisation and subsequent transmission. To improve vaccine strategies, a greater understanding of human B. pertussis colonisation is required. This article summarises a protocol and does not contain any results. METHODS AND ANALYSIS: A controlled human colonisation model will be developed over two phases. In phase A, a low dose of the inoculum will be given intranasally to healthy participants. This dose will be escalated or de-escalated until colonisation is achieved in approximately 70% (95% CI 47% to 93%) of the exposed volunteers without causing disease. The colonisation period, shedding and exploratory immunology will be assessed during a 17-day inpatient stay and follow up over 1 year. The dose of inoculum that achieves 70% colonisation will then be confirmed in phase B, comparing healthy participants exposed to B. pertussis with a control group receiving a sham inoculum. ETHICS AND DISSEMINATION: This study has been approved by the ethical committee reference: 17/SC/0006, 24 February 2017. Findings will be published in peer-reviewed open access journals as soon as possible. PMID- 29025850 TI - Protocol for a pilot, randomised, double-blinded, placebo-controlled trial of prophylactic use of tranexamic acid for preventing postpartum haemorrhage (TAPPH 1). AB - INTRODUCTION: Postpartum haemorrhage (PPH) is the leading cause of maternal morbidity and mortality worldwide. Despite the availability of multiple uterotonic agents, the incidence of PPH continues to rise. Tranexamic acid (TXA) has been shown to be a safe, effective and inexpensive therapeutic option for the treatment of PPH, however, its use prophylactically in mitigating the risk of PPH is unknown. This pragmatic randomised prospective trial assesses the feasibility and safety of administering TXA at the time of delivery for the prevention of PPH. METHODS AND ANALYSIS: A pilot pragmatic randomised double-blinded placebo controlled trial will be performed. 58 singleton parturients at term >32 weeks, undergoing either spontaneous vaginal delivery, or caesarean section will be randomised to receive 1 g of TXA or placebo (0.9% saline) intravenously. The primary outcome assessed will be the feasibility of administrating TXA, along with collecting data regarding safety of drug administration. The groups will also be analysed on efficacy of mitigating the onset of PPH and clinically relevant variables. Demographic, feasibility, safety and clinical endpoints will be summarised and the appropriate measures of central tendency and dispersion will be presented. ETHICS AND DISSEMINATION: This protocol was approved by the Sunnybrook Health Sciences Centre Research Ethics Board (number: 418-2016). The results will be disseminated in a peer-reviewed journal and at scientific meetings. TRIAL REGISTRATION NUMBER: NCT03069859; Pre-results. PMID- 29025854 TI - How to use... Hip examination and ultrasound in newborns. AB - Developmental dysplasia of the hip (DDH) ranges from a clinically detectable dislocation of the hip to radiologically diagnosed hip abnormalities. It is caused by both antenatal and postnatal factors. The Neonatal and Infant Physical Examination Screening Programme recommends that newborns should undergo a hip ultrasound (USS) when risk factor or clinical features suggestive of DDH are present. The aim of hip ultrasonography is to detect DDH early and prevent late complications through early treatment. Here, we discuss how to use hip examination and USS in newborns. PMID- 29025855 TI - Management of children and young people with an acute decrease in conscious level (RCPCH guideline update 2015). PMID- 29025856 TI - Paediatric intensive care nurses report higher empathy but also higher burnout than other health professionals. PMID- 29025857 TI - Endocrine side effects of cancer immunotherapy. AB - Immune checkpoint inhibitors have recently become a cornerstone for the treatment of different advanced cancers. These drugs, represented mainly by monoclonal antibodies anti-cytotoxic T-lymphocyte antigen 4 (CTLA-4), anti-programmed cell death protein-1 (PD-1) and anti-PD-1 ligand molecules (PD-L1 and L2), have the ability to reactivate the immune system against tumor cells, but can also trigger a myriad of autoimmune side effects, termed immune-related adverse events (irAEs). In particular, there are a number of endocrine-related irAEs. Current data from clinical trials show increased incidence of hypophysitis with CTLA4 inhibition and thyroid dysfunction with PD-(L)1 blockade. In addition, a few cases of type 1 diabetes mellitus and primary adrenal insufficiency have been reported. We discuss the incidence, clinical manifestations, diagnosis and management of immune-related endocrinopathies in this highly complex context of oncological patients in need of immunotherapies. PMID- 29025859 TI - Erratum. Direct Substrate Delivery Into Mitochondrial Fission-Deficient Pancreatic Islets Rescues Insulin Secretion. Diabetes 2017;66:1247-1257. PMID- 29025858 TI - Histone Modifications Regulate the Developmental Expression of Human Hepatic UDP Glucuronosyltransferase 1A1. AB - Human UDP-glucuronosyltransferase 1A1 (UGT1A1) is a unique enzyme involved in bilirubin conjugation. We previously characterized the hepatic expression of transcription factors affecting UGT1A1 expression during development. Accordingly, in this study, we characterized the ontogenetic expression of hepatic UGT1A1 from the perspective of epigenetic regulation. We observed significant histone-3-lysine-4 dimethylation (H3K4me2) enrichment in the adult liver and histone-3-lysine-27 trimethylation (H3K27me3) enrichment in the fetal liver, indicating that dynamic alterations of histone methylation were associated with ontogenetic UGT1A1 expression. We further showed that the transcription factor hepatocyte nuclear factor 1alpha (HNF1A) affects histone modifications around the UGT1A1 locus. In particular, we demonstrated that by recruiting HNF1A the cofactors mixed-lineage leukemia 1, the transcriptional coactivator p300, and nuclear receptor coactivator 6 aggregate at the UGT1A1 promoter, thereby regulating histone modifications and subsequent UGT1A1 expression. In this study, we proposed new ideas for the developmental regulation of metabolic enzymes via histone modifications, and our findings will potentially contribute to the development of age-specific therapies. PMID- 29025860 TI - Negative Regulation of TRPA1 by AMPK in Primary Sensory Neurons as a Potential Mechanism of Painful Diabetic Neuropathy. AB - AMPK is a widely expressed intracellular energy sensor that monitors and modulates energy expenditure. Transient receptor potential ankyrin 1 (TRPA1) channel is a widely recognized chemical and thermal sensor that plays vital roles in pain transduction. In this study, we discovered a functional link between AMPK and TRPA1 in dorsal root ganglion (DRG) neurons, in which AMPK activation rapidly resulted in downregulation of membrane-associated TRPA1 and its channel activity within minutes. Treatment with two AMPK activators, metformin or AICAR, inhibited TRPA1 activity in DRG neurons by decreasing the amount of membrane-associated TRPA1. Metformin induced a dose-dependent inhibition of TRPA1-mediated calcium influx. Conversely, in diabetic db/db mice, AMPK activity was impaired in DRG neurons, and this was associated with a concomitant increase in membrane associated TRPA1 and mechanical allodynia. Notably, these molecular and behavioral changes were normalized following treatment with AMPK activators. Moreover, high-glucose exposure decreased activated AMPK levels and increased agonist-evoked TRPA1 currents in cultured DRG neurons, and these effects were prevented by treatment with AMPK activators. Our results identify AMPK as a previously unknown regulator of TRPA1 channels. AMPK modulation of TRPA1 could thus serve as an underlying mechanism and potential therapeutic molecular target in painful diabetic neuropathy. PMID- 29025861 TI - Multiple indicators of ill health are evident in people with psychosis. PMID- 29025863 TI - Are rising admission thresholds good medicine? PMID- 29025862 TI - Developing digital interventions for people living with serious mental illness: perspectives from three mHealth studies. AB - The rapidly expanding field of mobile health (mHealth) seeks to harness increasingly affordable and ubiquitous mobile digital technologies including smartphones, tablets, apps and wearable devices to enhance clinical care. Accumulating evidence suggests that mHealth interventions are increasingly being adopted and valued by people living with serious mental illnesses such as schizophrenia and bipolar disorder, as a means of better understanding and managing their condition. We draw on experiences from three geographically and methodologically distinct mHealth studies to provide a pragmatic overview of the key challenges and considerations relating to the process of developing digital interventions for this population. PMID- 29025865 TI - Publisher's Note: Rho differentially regulates the Hippo pathway by modulating the interaction between Amot and Nf2 in the blastocyst. Development doi: 10.1242/dev.157917. PMID- 29025864 TI - Pre-emptive ice cube cryotherapy for reducing pain from local anaesthetic injections for simple lacerations: a randomised controlled trial. AB - OBJECTIVE: Subcutaneous local anaesthetic injection can be painful to patients in the ED. We evaluated the effect of cryotherapy by application of an ice cube to the injection site prior to injection in patients with simple lacerations. METHODS: We conducted a prospective, randomised, controlled trial in consented patients with simple lacerations needing primary repair at a single emergency centre from April to July 2016. We randomly assigned patients undergoing repair for simple lacerations to either the cryotherapy group or the control group (standard care; no cryotherapy or other pretreatment of the injection site). In cryotherapy group subjects, we applied an ice cube (size: 1.5*1.5*1.5 cm) placed inside a sterile glove on the wound at the anticipated subcutaneous lidocaine injection site for 2 min prior to injection. The primary outcome was a subjective numeric rating (0-10 scale) of the perceived pain from the subcutaneous local anaesthetic injections. Secondary outcomes were (a) perceived pain on a numeric scale for cryotherapy itself, that is, pain from contact of the ice cube/glove with the skin and (b) the rate of complications after primary laceration repair. RESULTS: Fifty patients were enrolled, consented and randomised, with 25 in the cryotherapy group and 25 in the control group. The numeric rating scale for subcutaneous anaesthetic injections was median, IQR, 95% CI 2.0 (1 to 3.5), 1.81 to 3.47, respectively, in the cryotherapy group and 5.0 (3 to 7), 3.91 to 6.05 in the control group (Mann-Whitney U=147.50, p=0.001). No wound complications occurred in either group. The numeric rating scale for cryotherapy itself was median, IQR, 95% CI: 2.0 (1 to 3.5), 1.90 to 3.70. CONCLUSION: Pre-emptive topical injection site cryotherapy lasting 2 min before subcutaneous local anaesthetic injections can significantly reduce perceived pain from subcutaneous local anaesthetic injections in patients presenting for simple laceration repair. TRIAL REGISTRATION NUMBER: KCT0001990. PMID- 29025866 TI - Declining levels of functionally specialized synaptic proteins in plasma neuronal exosomes with progression of Alzheimer's disease. AB - Interactions of the presynaptic proteins, neuronal pentraxin 2 (NPTX2) and neurexin 2alpha (NRXN2alpha), with their respective postsynaptic functional partners, GluA4-containing glutamate (AMPA4) receptor and neuroligin 1 (NLGN1), enhance excitatory synaptic activity in some areas of the hippocampus and cerebral cortex. As early damage of such excitatory circuits in the brain tissues of participants with Alzheimer's disease (AD) correlates with cognitive losses, plasma neuron-derived exosome (NDE) levels of these 2 pairs of specialized synaptic proteins were quantified to assess their biomarker characteristics. The NDE contents of all 4 proteins were decreased significantly in AD dementia ( n = 46), and diminished levels of AMPA4 and NLGN1 correlated with the extent of cognitive loss. In a preclinical period, 6-11 yr before the onset of dementia, the NDE levels of all but NPTX2 were significantly lower than those of matched controls, and levels of all proteins declined significantly with the development of dementia. Reductions in NDE levels of these specialized excitatory synaptic proteins may therefore be indicative of the extent of cognitive loss and may reflect progression of the severity of AD.-Goetzl, E. J., Abner, E. L., Jicha, G. A., Kapogiannis, D., Schwartz, J. B. Declining levels of functionally specialized synaptic proteins in plasma neuronal exosomes with progression of Alzheimer's disease. PMID- 29025867 TI - Threading the biophysics of mammalian Slo1 channels onto structures of an invertebrate Slo1 channel. AB - For those interested in the machinery of ion channel gating, the Ca2+ and voltage activated BK K+ channel provides a compelling topic for investigation, by virtue of its dual allosteric regulation by both voltage and intracellular Ca2+ and because its large-single channel conductance facilitates detailed kinetic analysis. Over the years, biophysical analyses have illuminated details of the allosteric regulation of BK channels and revealed insights into the mechanism of BK gating, e.g., inner cavity size and accessibility and voltage sensor-pore coupling. Now the publication of two structures of an Aplysia californica BK channel-one liganded and one metal free-promises to reinvigorate functional studies and interpretation of biophysical results. The new structures confirm some of the previous functional inferences but also suggest new perspectives regarding cooperativity between Ca2+-binding sites and the relationship between voltage- and Ca2+-dependent gating. Here we consider the extent to which the two structures explain previous functional data on pore-domain properties, voltage sensor motions, and divalent cation binding and activation of the channel. PMID- 29025868 TI - In situ visualization of glucocerebrosidase in human skin tissue: zymography versus activity-based probe labeling. AB - Epidermal beta-glucocerebrosidase (GBA1), an acid beta-glucosidase normally located in lysosomes, converts (glucosyl)ceramides into ceramides, which is crucial to generate an optimal barrier function of the outermost skin layer, the stratum corneum (SC). Here we report on two developed in situ methods to localize active GBA in human epidermis: i) an optimized zymography method that is less labor intensive and visualizes enzymatic activity with higher resolution than currently reported methods using either substrate 4-methylumbelliferyl-beta-D glucopyranoside or resorufin-beta-D-glucopyranoside; and ii) a novel technique to visualize active GBA1 molecules by their specific labeling with a fluorescent activity-based probe (ABP), MDW941. The latter method pro-ved to be more robust and sensitive, provided higher resolution microscopic images, and was less prone to sample preparation effects. Moreover, in contrast to the zymography substrates that react with various beta-glucosidases, MDW941 specifically labeled GBA1. We demonstrate that active GBA1 in the epidermis is primarily located in the extracellular lipid matrix at the interface of the viable epidermis and the lower layers of the SC. With ABP-labeling, we observed reduced GBA1 activity in 3D cultured skin models when supplemented with the reversible inhibitor, isofagomine, irrespective of GBA expression. This inhibition affected the SC ceramide composition: MS analysis revealed an inhibitor-dependent increase in the glucosylceramide:ceramide ratio. PMID- 29025869 TI - Regulation of TG accumulation and lipid droplet morphology by the novel TLDP1 in Aurantiochytrium limacinum F26-b. AB - Thraustochytrids are marine single-cell protists that produce large amounts of PUFAs, such as DHA. They accumulate PUFAs in lipid droplets (LDs), mainly as constituent(s) of triacylglycerol (TG). We identified a novel protein in the LD fraction of Aurantiochytrium limacinum F26-b using 2D-difference gel electrophoresis. The protein clustered with orthologs of thraustochytrids; however, the cluster was evolutionally different from known PAT family proteins or plant LD protein; thus, we named it thraustochytrid-specific LD protein 1 (TLDP1). TLDP1 surrounded LDs when expressed as a GFP-tagged form. Disruption of the tldp1 gene decreased the content of TG and number of LDs per cell; however, irregular and unusually large LDs were generated in tldp1-deficient mutants. Although the level of TG synthesis was unchanged by the disruption of tldp1, the level of TG degradation was higher in tldp1-deficient mutants than in the WT. These phenotypic abnormalities in tldp1-deficient mutants were restored by the expression of tldp1 These results indicate that TLDP1 is a thraustochytrid specific LD protein and regulates the TG accumulation and LD morphology in A. limacinum F26-b. PMID- 29025870 TI - Genetic landscape of interactive effects of HLA-DRB1 alleles on susceptibility to ACPA(+) rheumatoid arthritis and ACPA levels in Japanese population. AB - BACKGROUND: HLA-DRB1 is the strongest susceptibility gene to rheumatoid arthritis (RA). HLA-DRB1 alleles showed significant non-additive and interactive effects on susceptibility to RA in the European population, but these effects on RA susceptibility should vary between populations due to the difference in allelic distribution. Furthermore, non-additive or interactive effects on the phenotypes of RA are not fully known. We evaluated the non-additive and interactive effects of HLA-DRB1 alleles on RA susceptibility and anticitrullinated protein/peptide antibody (ACPA) levels in Japanese patients. METHODS: A total of 5581 ACPA(+) RA and 19 170 controls were genotyped or imputed for HLA-DRB1 alleles. Logistic regression analysis was performed for both allelic non-additive effects and interactive effects of allelic combinations. The significant levels were set by Bonferroni's correction. A total of 4371 ACPA(+) RA were analysed for ACPA levels. RESULTS: We obtained evidence of non-additive and interactive effects of HLA-DRB1 on ACPA(+) RA susceptibility (p=2.5*10-5 and 1.5*10-17, respectively). Multiple HLA-DRB1 alleles including HLA-DRB1*04:05, the most common susceptibility allele in the Japanese, showed significant non-additive effects (p<=0.0043). We identified multiple allelic combinations with significant interactive effects including a common combination with the European population as well as novel combinations. Additional variance of ACPA(+) RA susceptibility could be explained substantially by heterozygote dominance or interactive effects. We did not find evidence of non-additive and interactive effects on levels of ACPA. CONCLUSION: HLA allelic non-additive and interactive effects on ACPA(+) RA susceptibility were observed in the Japanese population. The allelic non-additive and interactive effects depend on allelic distribution in populations. PMID- 29025871 TI - Audiograms of three subterranean rodent species (genus Fukomys) determined by auditory brainstem responses reveal extremely poor high-frequency hearing. AB - Life underground has shaped the auditory sense of subterranean mammals, shifting their hearing range to low frequencies. Mole-rats of the genus Fukomys have, however, been suggested to hear at frequencies up to 18.5 kHz, unusually high for a subterranean rodent. We present audiograms of three mole-rat species, Fukomys anselli, Fukomys micklemi and the giant mole-rat Fukomys mechowii, based on evoked auditory brainstem potentials. All species showed low sensitivity and restricted hearing ranges at 60 dB SPL extending from 125 Hz to 4 kHz (5 octaves) with most-sensitive hearing between 0.8 kHz and 1.4 kHz. The high-frequency cut offs are the lowest found in mammals to date. In contrast to predictions from middle ear morphology, F. mechowii did not show higher sensitivity than F. anselli in the low-frequency range. These data suggest that the hearing range of Fukomys mole-rats is highly restricted to low frequencies and similar to that of other subterranean mammals. PMID- 29025872 TI - Sirtuins regulate proteomic responses near thermal tolerance limits in the blue mussels Mytilus galloprovincialis and Mytilus trossulus. AB - The blue mussels Mytilus galloprovincialis and M. trossulus are competing species with biogeographical ranges set in part by environmental exposure to heat and hyposalinity. The underlying cellular mechanisms influencing interspecific differences in stress tolerance are unknown, but are believed to be under regulation by sirtuins, nicotinamide adenine dinucleotide (NAD+)-dependent deacylases that play a critical role in the cellular stress response. A comparison of the proteomic responses of M. galloprovincialis and M. trossulus to an acute heat shock in the presence and absence of the sirtuin inhibitor suramin (SIRT1, 2 and 5) showed that sirtuins affected molecular chaperones, oxidative stress proteins, metabolic enzymes, cytoskeletal and signaling proteins more in the heat-sensitive M. trossulus than in the heat-tolerant M. galloprovincialis Interactions between sirtuin inhibition and changes in the abundance of proteins of beta-oxidation and oxidative stress in M. trossulus suggest a greater role of sirtuins in shifting metabolism to reduce the production of reactive oxygen species near thermal limits. Furthermore, RNA-binding proteins initiating and inhibiting translation were affected by suramin in M. galloprovincialis and M. trossulus, respectively. Western blot analysis showed that the levels of mitochondrial sirtuin 5 (SIRT5) were generally three times higher and increased with acute heat stress in response to sirtuin inhibition in M. trossulus but not in M. galloprovincialis, suggesting a possible feedback response in the former species and a greater reliance on SIRT5 for its stress response. Our findings suggest that SIRT5 plays an important role in setting interspecific differences in stress tolerance in Mytilus by affecting the stress proteome. PMID- 29025874 TI - Effect of Pokemon GO on incidence of fatal traffic injuries: a population-based quasi-experimental study using the national traffic collisions database in Japan. AB - Pokemon GO (Niantic Labs, released on 22 July 2016 in Japan) is an augmented reality game that gained huge popularity worldwide. Despite concern about Pokemon GO-related traffic collisions, the effect of playing Pokemon GO on the incidence of traffic injuries remains unknown. We performed a population-based quasi experimental study using national data from the Institute for Traffic Accident Research and Data Analysis, Japan. The outcome was incidence of traffic injuries. Of 127 082 000 people in Japan, 886 fatal traffic injuries were observed between 1 June and 31 August in 2016. Regression discontinuity analysis showed a non significant change in incidence of fatal traffic injuries after the Pokemon GO release (0.017 deaths per million, 95%CI -0.036 to 0.071). This finding was similar to that obtained from a difference-in-differences analysis. Effect of Pokemon GO on fatal traffic injuries may be negligible. PMID- 29025873 TI - Ectopic expression of Pax4 in pancreatic delta cells results in beta-like cell neogenesis. AB - The recent demonstration that pancreatic alpha cells can be continuously regenerated and converted into beta-like cells upon ectopic expression of Pax4 opened new avenues of research in the endocrine cell differentiation and diabetes fields. To determine whether such plasticity was also shared by delta cells, we generated and characterized transgenic animals that express Pax4 specifically in somatostatin-expressing cells. We demonstrate that the ectopic expression of Pax4 in delta cells is sufficient to induce their conversion into functional beta-like cells. Importantly, this conversion induces compensatory mechanisms involving the reactivation of endocrine developmental processes that result in dramatic beta like cell hyperplasia. Importantly, these beta-like cells are functional and can partly reverse the consequences of chemically induced diabetes. PMID- 29025875 TI - A small-molecule compound inhibits a collagen-specific molecular chaperone and could represent a potential remedy for fibrosis. AB - Fibrosis can disrupt tissue structure and integrity and impair organ function. Fibrosis is characterized by abnormal collagen accumulation in the extracellular matrix. Pharmacological inhibition of collagen secretion therefore represents a promising strategy for the management of fibrotic disorders, such as liver and lung fibrosis. Hsp47 is an endoplasmic reticulum (ER)-resident collagen-specific molecular chaperone essential for correct folding of procollagen in the ER. Genetic deletion of Hsp47 or inhibition of its interaction with procollagen interferes with procollagen triple helix production, which vastly reduces procollagen secretion from fibroblasts. Thus, Hsp47 could be a potential and promising target for the management of fibrosis. In this study, we screened small molecule compounds that inhibit the interaction of Hsp47 with collagen from chemical libraries using surface plasmon resonance (BIAcore), and we found a molecule AK778 and its cleavage product Col003 competitively inhibited the interaction and caused the inhibition of collagen secretion by destabilizing the collagen triple helix. Structural information obtained with NMR analysis revealed that Col003 competitively binds to the collagen-binding site on Hsp47. We propose that these structural insights could provide a basis for designing more effective therapeutic drugs for managing fibrosis. PMID- 29025877 TI - Low Incidence of End-Stage Renal Disease in Childhood-Onset Type 1 Diabetes Followed for Up to 42 Years. AB - OBJECTIVE: End-stage renal disease (ESRD) is one of the most severe complications in type 1 diabetes. We aimed to estimate the cumulative incidence of ESRD in individuals with childhood-onset type 1 diabetes followed for up to 42 years. RESEARCH DESIGN AND METHODS: Data were based on the nationwide, population-based Norwegian Childhood Diabetes Registry and included case patients with new-onset type 1 diabetes (age <15 years) who had received a diagnosis during the periods 1973-1982 and 1989-2012. Follow-up took place until the development of ESRD, death, emigration, or 30 November 2015. We estimated the cumulative incidence of ESRD by linking to the Norwegian Renal Registry. RESULTS: Among the 7,871 patients, representing 147,714 person-years of follow-up, ESRD developed in 103 individuals (1.3%). The mean time from the diagnosis of diabetes to the development of ESRD was 25.9 years (range 12.7-39.1). The cumulative incidence of ESRD was 0.7% (95% CI 0.4-1.0) at 20 years' diabetes duration, 2.9% (2.3-3.7) at 30 years' duration, and 5.3% (4.3-6.5) at 40 years' duration. The risk of the development of ESRD was lower in women than in men (hazard ratio [HR] 0.61; 95% CI 0.41-0.91) and higher in individuals in whom diabetes had been diagnosed at 10 14 years of age compared with those in whom it was diagnosed before 10 years of age (HR 1.29; 1.06-1.56). We did not identify any significant difference in the risk of the development of ESRD between those in whom diabetes was diagnosed in 1973-1982 and in 1989-2012 (HR 0.80; 0.45-1.45). CONCLUSIONS: We report a very low incidence of ESRD among patients with childhood-onset diabetes in Norway. The risk was lower in women compared with men and in individuals in whom diabetes was diagnosed at a younger age. PMID- 29025876 TI - Mevalonate 5-diphosphate mediates ATP binding to the mevalonate diphosphate decarboxylase from the bacterial pathogen Enterococcus faecalis. AB - The mevalonate pathway produces isopentenyl diphosphate (IPP), a building block for polyisoprenoid synthesis, and is a crucial pathway for growth of the human bacterial pathogen Enterococcus faecalis The final enzyme in this pathway, mevalonate diphosphate decarboxylase (MDD), acts on mevalonate diphosphate (MVAPP) to produce IPP while consuming ATP. This essential enzyme has been suggested as a therapeutic target for the treatment of drug-resistant bacterial infections. Here, we report functional and structural studies on the mevalonate diphosphate decarboxylase from E. faecalis (MDDEF). The MDDEF crystal structure in complex with ATP (MDDEF-ATP) revealed that the phosphate-binding loop (amino acids 97-105) is not involved in ATP binding and that the phosphate tail of ATP in this structure is in an outward-facing position pointing away from the active site. This suggested that binding of MDDEF to MVAPP is necessary to guide ATP into a catalytically favorable position. Enzymology experiments show that the MDDEF performs a sequential ordered bi-substrate reaction with MVAPP as the first substrate, consistent with the isothermal titration calorimetry (ITC) experiments. On the basis of ITC results, we propose that this initial prerequisite binding of MVAPP enhances ATP binding. In summary, our findings reveal a substrate-induced substrate-binding event that occurs during the MDDEF catalyzed reaction. The disengagement of the phosphate-binding loop concomitant with the alternative ATP-binding configuration may provide the structural basis for antimicrobial design against these pathogenic enterococci. PMID- 29025878 TI - Elevated Postoperative Endogenous GLP-1 Levels Mediate Effects of Roux-en-Y Gastric Bypass on Neural Responsivity to Food Cues. AB - OBJECTIVE: It has been suggested that weight reduction and improvements in satiety after Roux-en-Y gastric bypass (RYGB) are partly mediated via postoperative neuroendocrine changes. Glucagon-like peptide-1 (GLP-1) is a gut hormone secreted after food ingestion and is associated with appetite and weight reduction, mediated via effects on the central nervous system (CNS). Secretion of GLP-1 is greatly enhanced after RYGB. We hypothesized that postoperative elevated GLP-1 levels contribute to the improved satiety regulation after RYGB via effects on the CNS. RESEARCH DESIGN AND METHODS: Effects of the GLP-1 receptor antagonist exendin 9-39 (Ex9-39) and placebo were assessed in 10 women before and after RYGB. We used functional MRI to investigate CNS activation in response to visual food cues (pictures) and gustatory food cues (consumption of chocolate milk), comparing results with Ex9-39 versus placebo before and after RYGB. RESULTS: After RYGB, CNS activation was reduced in the rolandic operculum and caudate nucleus in response to viewing food pictures (P = 0.03) and in the insula in response to consumption of palatable food (P = 0.003). GLP-1 levels were significantly elevated postoperatively (P < 0.001). After RYGB, GLP-1 receptor blockade resulted in a larger increase in activation in the caudate nucleus in response to food pictures (P = 0.02) and in the insula in response to palatable food consumption (P = 0.002). CONCLUSIONS: We conclude that the effects of RYGB on CNS activation in response to visual and gustatory food cues may be mediated by central effects of GLP-1. Our findings provide further insights into the mechanisms underlying the weight-lowering effects of RYGB. PMID- 29025880 TI - Pharmacological treatment optimisation for stable COPD: an endless story? Proposals from the Societe de Pneumologie de Langue Francaise. PMID- 29025879 TI - TCF7L2 Genetic Variants Contribute to Phenotypic Heterogeneity of Type 1 Diabetes. AB - OBJECTIVE: The phenotypic diversity of type 1 diabetes suggests heterogeneous etiopathogenesis. We investigated the relationship of type 2 diabetes-associated transcription factor 7 like 2 (TCF7L2) single nucleotide polymorphisms (SNPs) with immunologic and metabolic characteristics at type 1 diabetes diagnosis. RESEARCH DESIGN AND METHODS: We studied TrialNet participants with newly diagnosed autoimmune type 1 diabetes with available TCF7L2 rs4506565 and rs7901695 SNP data (n = 810; median age 13.6 years; range 3.3-58.6). We modeled the influence of carrying a TCF7L2 variant (i.e., having 1 or 2 minor alleles) on the number of islet autoantibodies and oral glucose tolerance test (OGTT) stimulated C-peptide and glucose measures at diabetes diagnosis. All analyses were adjusted for known confounders. RESULTS: The rs4506565 variant was a significant independent factor of expressing a single autoantibody, instead of multiple autoantibodies, at diagnosis (odds ratio [OR] 1.66 [95% CI 1.07, 2.57], P = 0.024). Interaction analysis demonstrated that this association was only significant in participants >=12 years old (n = 504; OR 2.12 [1.29, 3.47], P = 0.003) but not younger ones (n = 306, P = 0.73). The rs4506565 variant was independently associated with higher C-peptide area under the curve (AUC) (P = 0.008) and lower mean glucose AUC (P = 0.0127). The results were similar for the rs7901695 SNP. CONCLUSIONS: In this cohort of individuals with new-onset type 1 diabetes, type 2 diabetes-linked TCF7L2 variants were associated with single autoantibody (among those >=12 years old), higher C-peptide AUC, and lower glucose AUC levels during an OGTT. Thus, carriers of the TCF7L2 variant had a milder immunologic and metabolic phenotype at type 1 diabetes diagnosis, which could be partly driven by type 2 diabetes-like pathogenic mechanisms. PMID- 29025881 TI - High-dose isoniazid in the shorter-course multidrug-resistant tuberculosis regimen in the Republic of Moldova. PMID- 29025882 TI - Mucolytics for COPD: negotiating a slippery slope towards proof of efficacy. PMID- 29025883 TI - A katG 315 mutation alone should not lead to exclusion of isoniazid in treatment of multidrug-resistant tuberculosis. PMID- 29025885 TI - "Long-term outcomes of bronchial thermoplasty in subjects with severe asthma: a comparison of 3-year follow-up results from two prospective multicentre studies." Geoffrey Chupp, Michel Laviolette, Lauren Cohn, Charlene McEvoy, Sandeep Bansal, Adrian Shifren, Sumita Khatri, G. Mark Grubb, Edmund McMullen, Racho Strauven and Joel N. Kline. Eur Respir J 2017; 50: 1700017. PMID- 29025884 TI - Lack of evidence of isoniazid efficacy for the treatment of MDR/XDR-TB in the presence of the katG 315T mutation. PMID- 29025886 TI - Th17 cytokines: novel potential therapeutic targets for COPD pathogenesis and exacerbations. AB - Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease of the airways caused mainly by cigarette smoke exposure. COPD progression is marked by exacerbations of the disease, often associated with infections. Recent data show the involvement in COPD pathophysiology of interleukin (IL)-17 and IL-22, two cytokines that are important in the control of lung inflammation and infection. During the initiation and progression of the disease, increased IL-17 secretion causes neutrophil recruitment, leading to chronic inflammation, airways obstruction and emphysema. In the established phase of COPD, a defective IL-22 response facilitates pathogen-associated infections and disease exacerbations. Altered production of these cytokines involves a complex network of immune cells and dysfunction of antigen-presenting cells. In this review, we describe current knowledge on the involvement of IL-17 and IL-22 in COPD pathophysiology at steady state and during exacerbations, and discuss implications for COPD management and future therapeutic approaches. PMID- 29025887 TI - BRAF and NRAS mutations in circulating Langerhans-like CD1a+ cells in a patient with pulmonary Langerhans' cell histiocytosis. PMID- 29025890 TI - Passive smoking in relation to lung cancer incidence and histologic types in Norwegian adults: the HUNT study. PMID- 29025889 TI - Characterisation of asthma subgroups associated with circulating YKL-40 levels. AB - The chitinase-like protein YKL-40 mediates airway inflammation and serum levels are associated with asthma severity. However, asthma phenotypes associated with YKL-40 levels have not been precisely defined.We conducted an unsupervised cluster analysis of asthma patients treated at the Yale Center for Asthma and Airways Disease (n=156) to identify subgroups according to YKL-40 level. The resulting YKL-40 clusters were cross-validated in cohorts from the Severe Asthma Research Programme (n=167) and the New York University/Bellevue Asthma Repository (n=341). A sputum transcriptome analysis revealed molecular pathways associated with YKL-40 subgroups.Four YKL-40 clusters (C1-C4) were identified. C3 and C4 had high serum YKL-40 levels compared with C1 and C2. C3 was associated with earlier onset and longer duration of disease, severe airflow obstruction, and near-fatal asthma exacerbations. C4 had the highest serum YKL-40 levels, adult onset and less airflow obstruction, but frequent exacerbations. An airway transcriptome analysis in C3 and C4 showed activation of non-type 2 inflammatory pathways.Elevated serum YKL-40 levels were associated with two distinct clinical asthma phenotypes: one with irreversible airway obstruction and another with severe exacerbations. The YKL-40 clusters are potentially useful for identification of individuals with severe or exacerbation-prone asthma. PMID- 29025888 TI - Effect of erdosteine on the rate and duration of COPD exacerbations: the RESTORE study. AB - Oxidative stress contributes to chronic obstructive pulmonary disease (COPD) exacerbations and antioxidants can decrease exacerbation rates, although we lack data about the effect of such drugs on exacerbation duration.The RESTORE (Reducing Exacerbations and Symptoms by Treatment with ORal Erdosteine in COPD) study was a prospective randomised, double-blind, placebo-controlled study, enrolling patients aged 40-80 years with Global Initiative for Chronic Obstructive Lung Disease stage II/III. Patients received erdosteine 300 mg twice daily or placebo added to usual COPD therapy for 12 months. The primary outcome was the number of acute exacerbations during the study.In the pre-specified intention-to-treat population of 445 patients (74% male; mean age 64.8 years, forced expiratory volume in 1 s 51.8% predicted) erdosteine reduced the exacerbation rate by 19.4% (0.91 versus 1.13 exacerbations.patient-1.year-1 for erdosteine and placebo, respectively; p=0.01), due to an effect on mild events; the reduction in the rate of mild exacerbations was 57.1% (0.23 versus 0.54 exacerbations.patient-1.year-1 for erdosteine and placebo, respectively; p=0.002). No significant difference was observed in the rate of moderate and severe exacerbations (0.68 versus 0.59 exacerbations.patient-1.year-1 for erdosteine and placebo, respectively; p=0.054) despite a trend in favour of the comparison group. Erdosteine decreased the exacerbation duration irrespective of event severity by 24.6% (9.55 versus 12.63 days for erdosteine and placebo, respectively; p=0.023). Erdosteine significantly improved subject and physician subjective severity scores (p=0.022 and p=0.048, respectively), and reduced the use of reliever medication (p<0.001), but did not affect the St George's Respiratory Questionnaire score or the time to first exacerbation.In patients with COPD, erdosteine can reduce both the rate and duration of exacerbations. The percentage of patients with adverse events was similar in both the placebo and erdosteine treatment groups. PMID- 29025892 TI - Evaluation of tuberculosis screening of immigrants in the Netherlands. PMID- 29025891 TI - Impact and associations of eosinophilic inflammation in COPD: analysis of the AERIS cohort. AB - Eosinophilic inflammation in chronic obstructive pulmonary disease (COPD) predicts response to treatment, especially corticosteroids. We studied the nature of eosinophilic inflammation in COPD prospectively to examine the stability of this phenotype and its dynamics across exacerbations, and its associations with clinical phenotype, exacerbations and infection.127 patients aged 40-85 years with moderate to very severe COPD underwent repeated blood and sputum sampling at stable visits and within 72 h of exacerbation for 1 year.Blood eosinophils >=2% was prevalent at baseline, and predicted both predominantly raised stable-state eosinophils across the year (area under the curve 0.841, 95% CI 0.755-0.928) and increased risk of eosinophilic inflammation at exacerbation (OR 9.16; p<0.001). Eosinophils >=2% at exacerbation and eosinophil predominance at stable visits were associated with a lower risk of bacterial presence at exacerbation (OR 0.49; p=0.049 and OR 0.25; p=0.065, respectively). Bacterial infection at exacerbation was highly seasonal (winter versus summer OR 4.74; p=0.011) in predominantly eosinophilic patients.Eosinophilic inflammation is a common and stable phenotype in COPD. Blood eosinophil counts in the stable state can predict the nature of inflammation at future exacerbations, which when combined with an understanding of seasonal variation provides the basis for the development of new treatment paradigms for this important condition. PMID- 29025893 TI - Disease-specific biases in alternative splicing and tissue-specific dysregulation revealed by multitissue profiling of lymphocyte gene expression in type 1 diabetes. AB - Genome-wide association studies (GWAS) have identified multiple, shared allelic associations with many autoimmune diseases. However, the pathogenic contributions of variants residing in risk loci remain unresolved. The location of the majority of shared disease-associated variants in noncoding regions suggests they contribute to risk of autoimmunity through effects on gene expression in the immune system. In the current study, we test this hypothesis by applying RNA sequencing to CD4+, CD8+, and CD19+ lymphocyte populations isolated from 81 subjects with type 1 diabetes (T1D). We characterize and compare the expression patterns across these cell types for three gene sets: all genes, the set of genes implicated in autoimmune disease risk by GWAS, and the subset of these genes specifically implicated in T1D. We performed RNA sequencing and aligned the reads to both the human reference genome and a catalog of all possible splicing events developed from the genome, thereby providing a comprehensive evaluation of the roles of gene expression and alternative splicing (AS) in autoimmunity. Autoimmune candidate genes displayed greater expression specificity in the three lymphocyte populations relative to other genes, with significantly increased levels of splicing events, particularly those predicted to have substantial effects on protein isoform structure and function (e.g., intron retention, exon skipping). The majority of single-nucleotide polymorphisms within T1D-associated loci were also associated with one or more cis-expression quantitative trait loci (cis-eQTLs) and/or splicing eQTLs. Our findings highlight a substantial, and previously underrecognized, role for AS in the pathogenesis of autoimmune disorders and particularly for T1D. PMID- 29025895 TI - Accounting for GC-content bias reduces systematic errors and batch effects in ChIP-seq data. AB - The main application of ChIP-seq technology is the detection of genomic regions that bind to a protein of interest. A large part of functional genomics' public catalogs is based on ChIP-seq data. These catalogs rely on peak calling algorithms that infer protein-binding sites by detecting genomic regions associated with more mapped reads (coverage) than expected by chance, as a result of the experimental protocol's lack of perfect specificity. We find that GC content bias accounts for substantial variability in the observed coverage for ChIP-seq experiments and that this variability leads to false-positive peak calls. More concerning is that the GC effect varies across experiments, with the effect strong enough to result in a substantial number of peaks called differently when different laboratories perform experiments on the same cell line. However, accounting for GC content bias in ChIP-seq is challenging because the binding sites of interest tend to be more common in high GC-content regions, which confounds real biological signals with unwanted variability. To account for this challenge, we introduce a statistical approach that accounts for GC effects on both nonspecific noise and signal induced by the binding site. The method can be used to account for this bias in binding quantification as well to improve existing peak calling algorithms. We use this approach to show a reduction in false-positive peaks as well as improved consistency across laboratories. PMID- 29025894 TI - Nascent RNA sequencing reveals a dynamic global transcriptional response at genes and enhancers to the natural medicinal compound celastrol. AB - Most studies of responses to transcriptional stimuli measure changes in cellular mRNA concentrations. By sequencing nascent RNA instead, it is possible to detect changes in transcription in minutes rather than hours and thereby distinguish primary from secondary responses to regulatory signals. Here, we describe the use of PRO-seq to characterize the immediate transcriptional response in human cells to celastrol, a compound derived from traditional Chinese medicine that has potent anti-inflammatory, tumor-inhibitory, and obesity-controlling effects. Celastrol is known to elicit a cellular stress response resembling the response to heat shock, but the transcriptional basis of this response remains unclear. Our analysis of PRO-seq data for K562 cells reveals dramatic transcriptional effects soon after celastrol treatment at a broad collection of both coding and noncoding transcription units. This transcriptional response occurred in two major waves, one within 10 min, and a second 40-60 min after treatment. Transcriptional activity was generally repressed by celastrol, but one distinct group of genes, enriched for roles in the heat shock response, displayed strong activation. Using a regression approach, we identified key transcription factors that appear to drive these transcriptional responses, including members of the E2F and RFX families. We also found sequence-based evidence that particular transcription factors drive the activation of enhancers. We observed increased polymerase pausing at both genes and enhancers, suggesting that pause release may be widely inhibited during the celastrol response. Our study demonstrates that a careful analysis of PRO-seq time-course data can disentangle key aspects of a complex transcriptional response, and it provides new insights into the activity of a powerful pharmacological agent. PMID- 29025896 TI - High-throughput single-molecule telomere characterization. AB - We have developed a novel method that enables global subtelomere and haplotype resolved analysis of telomere lengths at the single-molecule level. An in vitro CRISPR/Cas9 RNA-directed nickase system directs the specific labeling of human (TTAGGG)n DNA tracts in genomes that have also been barcoded using a separate nickase enzyme that recognizes a 7-bp motif genome-wide. High-throughput imaging and analysis of large DNA single molecules from genomes labeled in this fashion using a nanochannel array system permits mapping through subtelomere repeat element (SRE) regions to unique chromosomal DNA while simultaneously measuring the (TTAGGG)n tract length at the end of each large telomere-terminal DNA segment. The methodology also permits subtelomere and haplotype-resolved analyses of SRE organization and variation, providing a window into the population dynamics and potential functions of these complex and structurally variant telomere-adjacent DNA regions. At its current stage of development, the assay can be used to identify and characterize telomere length distributions of 30-35 discrete telomeres simultaneously and accurately. The assay's utility is demonstrated using early versus late passage and senescent human diploid fibroblasts, documenting the anticipated telomere attrition on a global telomere by-telomere basis as well as identifying subtelomere-specific biases for critically short telomeres. Similarly, we present the first global single telomere-resolved analyses of two cancer cell lines. PMID- 29025898 TI - Aging is associated with increased propensity for central apnea during NREM sleep. AB - The reason for increased sleep-disordered breathing with predominance of central apneas in the elderly is unknown. We hypothesized that the propensity to central apneas is increased in older adults, manifested by a reduced carbon-dioxide (CO2) reserve in older compared with young adults during non-rapid eye movement sleep. Ten elderly and 15 young healthy adults underwent multiple brief trials of nasal noninvasive positive pressure ventilation during stable NREM sleep. Cessation of mechanical ventilation (MV) resulted in hypocapnic central apnea or hypopnea. The CO2 reserve was defined as the difference in end-tidal CO2 ([Formula: see text]) between eupnea and the apneic threshold, where the apneic threshold was [Formula: see text] that demarcated the central apnea closest to the eupneic [Formula: see text]. For each MV trial, the hypocapnic ventilatory response (controller gain) was measured as the change in minute ventilation (Ve) during the MV trial for a corresponding change in [Formula: see text]. The eupneic [Formula: see text] was significantly lower in elderly vs. young adults. Compared with young adults, the elderly had a significantly reduced CO2 reserve (-2.6 +/- 0.4 vs. -4.1 +/- 0.4 mmHg, P = 0.01) and a higher controller gain (2.3 +/- 0.2 vs. 1.4 +/- 0.2 l.min 1.mmHg-1, P = 0.007), indicating increased chemoresponsiveness in the elderly. Thus elderly adults are more prone to hypocapnic central apneas owing to increased hypocapnic chemoresponsiveness during NREM sleep. NEW & NOTEWORTHY The study describes an original finding where healthy older adults compared with healthy young adults demonstrated increased breathing instability during non rapid eye movement sleep, as suggested by a smaller carbon dioxide reserve and a higher controller gain. The findings may explain the increased propensity for central apneas in elderly adults during sleep and potentially guide the development of pathophysiology-defined personalized therapies for sleep apnea in the elderly. PMID- 29025899 TI - A novel single-beat approach to assess right ventricular systolic function. AB - Clinical assessment of right ventricular (RV) contractility in diseases such as pulmonary arterial hypertension (PAH) has been hindered by the lack of a robust methodology. Here, a novel, clinically viable, single-beat method was developed to assess end-systolic elastance (Ees), a measure of right ventricular (RV) contractility. We hypothesized that this novel approach reduces uncertainty and interobserver variability in the estimation of the maximum isovolumic pressure (Piso), the key step in single-beat methods. The new method was designed to include a larger portion of the RV pressure data and minimize subjective adjustments by the operator. Data were obtained from right heart catheterization of PAH patients in a multicenter prospective study ( data set 1) and a single center retrospective study ( data set 2). To obtain Piso, three independent observers used an established single-beat method (based on the first derivative of the pressure waveform) and the novel method (based on the second derivative). Interobserver variability analysis included paired t-test, one-way ANOVA, interclass correlation (ICC) analysis, and a modified Bland-Altman analysis. The Piso values obtained from the two methods were linearly correlated for both data set 1 ( R2 = 0.74) and data set 2 ( R2 = 0.91). Compared with the established method, the novel method resulted in smaller interobserver variability ( P < 0.001), nonsignificant differences between observers, and a narrower confidence interval. By reducing uncertainty and interobserved variability, this novel approach may pave the way for more effective clinical management of PAH. NEW & NOTEWORTHY A novel methodology to assess right ventricular contractility from clinical data is demonstrated. This approach significantly reduces interobserver variability in the analysis of ventricular pressure data, as demonstrated in a relatively large population of subjects with pulmonary hypertension. This study may enable more accurate clinical monitoring of systolic function in subjects with pulmonary hypertension. PMID- 29025900 TI - Multiple coupled resonances in the human vascular tree: refining the Westerhof model of the arterial system. AB - The human arterial vascular tree can be described by multicompartment models using electrical components. First introduced in the 1960s by Noordergraaf and Westerhof, these hardware-based approaches required several simplifications. We were able to remove the restrictions using modern software simulation tools and improve overall model quality considerably. Whereas the original Westerhof model consisted of 121 Windkessel elements, the refined model has 711 elements and gives realistic pulse waveforms of the aorta and brachial and radial arteries with realistic blood pressures. Moreover, novel insights concerning the formation of the physiological aortic-to-radial transfer function were gained. Its being potentially due to the coupling of many small resonant elements gives new impetus to the discussion of arterial pressure wave reflection. The individualized transfer function derived from our improved model incorporates distinct patient characteristics and can potentially be used for estimation of central blood pressure values. NEW & NOTEWORTHY We were able to find an individualized transfer function giving realistic pulse waveforms and blood pressures using a multicompartment model of the arterial system. Based on the hardware-built Westerhof approach, several simplifications initially introduced in the 1960s could be reversed using software simulation. Overall model quality was improved considerably, and multiple coupled resonances were identified as potential explanation for the formation of the aortic-to-radial transfer function, giving new impetus to the discussion of arterial pressure wave reflection. PMID- 29025897 TI - A Drosophila model of insulin resistance associated with the human TRIB3 Q/R polymorphism. AB - Members of the Tribbles family of proteins are conserved pseudokinases with diverse roles in cell growth and proliferation. Both Drosophila Tribbles (Trbl) and vertebrate Trib3 proteins bind to the kinase Akt (Akt1) to block its phosphorylation activation and reduce downstream insulin-stimulated anabolism. A single nucleotide polymorphism (SNP) variant in human TRIB3, which results in a glutamine (Q) to arginine (R) missense mutation in a conserved motif at position 84, confers stronger Akt binding, resulting in reduced Akt phosphorylation, and is associated with a predisposition to Type 2 diabetes, cardiovascular disease, diabetic nephropathy, chronic kidney disease and leukemogenesis. Here, we used a Drosophila model to understand the importance of the conserved R residue in several Trbl functions. In the fly fat body, misexpression of a site-directed Q mutation at position R141 resulted in weakened binding to Drosophila Akt (dAkt), leading to increased levels of phospho-dAkt, increased cell and tissue size, and increases in the levels of stored glycogen and triglycerides. Consistent with the functional conservation of this arginine in modulating Akt activity, mouse Trib3 R84 misexpressed in the fly fat body blocked dAkt phosphorylation with a strength similar to wild-type Trbl. Limited mutational analysis shows that the R141 site dictates the strength of Akt binding but does not affect other Trbl-dependent developmental processes, suggesting a specificity that could serve as a drug target for metabolic diseases. PMID- 29025902 TI - Relative contributions of systemic hemodynamic variables to cerebral autoregulation during orthostatic stress. AB - Postural changes impair the ability of the cerebrovasculature to buffer against dynamic pressure fluctuations, but the mechanisms underlying this impairment have not been elucidated. We hypothesized that autoregulatory impairment may reflect the impact of static central volume shifts on hemodynamic factors other than arterial pressure (AP). In 14 young volunteers, we assessed the relation of fluctuations in cerebral blood flow (CBF) to those in AP, cardiac output, and CO2, during oscillatory lower body pressure (LBP) (+/-20 mmHg at 0.01 and 0.06 Hz) at three static levels (-20, 0, and +20 mmHg). Static and dynamic changes in AP, cardiac output, and CO2 explained over 70% of the variation in CBF fluctuations. However, their contributions were different across frequencies and levels: dynamic AP changes explained a substantial proportion of the variation in faster CBF fluctuations (partial R2 = 0.75, standardized beta = 0.83, P < 0.01), whereas those in CO2 explained the largest portion of the variation in slow fluctuations (partial R2 = 0.43, beta = 0.51, P < 0.01). There was, however, a major contribution of slow dynamic AP changes during negative (beta = 0.43) but not neutral (beta = 0.05) or positive (beta = -0.07) LBP. This highlights the differences in contributions of systemic variables to dynamic and static autoregulation and has important implications for understanding orthostatic intolerance. NEW & NOTEWORTHY While fluctuations in blood pressure drive faster fluctuations in cerebral blood flow, overall level of CO2 and the magnitude of its fluctuations, along with cardiac output, determine the magnitude of slow ones. The effect of slow blood pressure fluctuations on cerebrovascular responses becomes apparent only during pronounced central volume shifts (such as when standing). This underlines distinct but interacting contributions of static and dynamic changes in systemic hemodynamic variables to the cerebrovascular regulation. PMID- 29025903 TI - Translation in Progress: Hypoxia 2017. PMID- 29025901 TI - Effects of age and exercise training on coronary microvascular smooth muscle phenotype and function. AB - Coronary microvascular function and blood flow responses during acute exercise are impaired in the aged heart but can be restored by exercise training. Coronary microvascular resistance is directly dependent on vascular smooth muscle function in coronary resistance arterioles; therefore, we hypothesized that age impairs contractile function and alters the phenotype of vascular smooth muscle in coronary arterioles. We further hypothesized that exercise training restores contractile function and reverses age-induced phenotypic alterations of arteriolar smooth muscle. Young and old Fischer 344 rats underwent 10 wk of treadmill exercise training or remained sedentary. At the end of training or cage confinement, contractile responses, vascular smooth muscle proliferation, and expression of contractile proteins were assessed in isolated coronary arterioles. Both receptor- and non-receptor-mediated contractile function were impaired in coronary arterioles from aged rats. Vascular smooth muscle shifted from a differentiated, contractile phenotype to a secretory phenotype with associated proliferation of smooth muscle in the arteriolar wall. Expression of smooth muscle myosin heavy chain 1 (SM1) was decreased in arterioles from aged rats, whereas expression of phospho-histone H3 and of the synthetic protein ribosomal protein S6 (rpS6) were increased. Exercise training improved contractile responses, reduced smooth muscle proliferation and expression of rpS6, and increased expression of SM1 in arterioles from old rats. Thus age-induced contractile dysfunction of coronary arterioles and emergence of a secretory smooth muscle phenotype may contribute to impaired coronary blood flow responses, but arteriolar contractile responsiveness and a younger smooth muscle phenotype can be restored with late-life exercise training. NEW & NOTEWORTHY Aging impairs contractile function of coronary arterioles and induces a shift of the vascular smooth muscle toward a proliferative, noncontractile phenotype. Late-life exercise training reverses contractile dysfunction of coronary arterioles and restores a young phenotype to the vascular smooth muscle. PMID- 29025904 TI - Imaging in metabolic research: challenges and opportunities. PMID- 29025905 TI - Clinical severity in adult warm autoimmune hemolytic anemia and its relationship to antibody specificity. PMID- 29025906 TI - Comparative profiling of HLA-DR and HLA-DQ associated factor VIII peptides presented by monocyte-derived dendritic cells. AB - The development of anti-factor VIII antibodies is a major complication of the treatment of patients with hemophilia A. Generation of high affinity anti-factor VIII antibodies is dependent on help provided by CD4+ T cells that recognize factor VIII-derived peptides presented on class II major histocompatibility complex on the surface of antigen-presenting cells. In order to identify the immune-dominant epitopes that can be presented to CD4+ T cells, we previously developed a mass spectrometry-based method to identify factor VIII-derived peptides that are presented on human leukocyte antigen (HLA)-DR. In the present work, we compared the repertoire of FVIII-derived peptide presented on HLA-DR and HLA-DQ. Monocyte-derived dendritic cells from nine HLA-typed healthy donors were pulsed with recombinant factor VIII. HLA-DR and HLA-DQ molecules were purified using monoclonal antibodies. Our data show that HLA-DQ and HLA-DR present a similar repertoire of factor VIII-derived peptides. However, the number of peptides associated with HLA-DQ was lower than that with HLA-DR. We also identified a peptide, within the acidic a3 domains of factor VIII, which is presented with higher frequency on HLA-DQ. Interestingly, this peptide was found to have a higher predicted affinity for HLA-DQ than for HLA-DR. Taken together, our data suggest that HLA-DQ participates in the presentation of factor VIII peptides, thereby contributing to the development of inhibitory antibodies in a proportion of patients with severe hemophilia A. PMID- 29025908 TI - A germ-line deletion of APOBEC3B does not contribute to subtype-specific childhood acute lymphoblastic leukemia etiology. PMID- 29025909 TI - Histone deacetylase inhibitors downregulate CCR4 expression and decrease mogamulizumab efficacy in CCR4-positive mature T-cell lymphomas. AB - Histone deacetylase inhibitors are promising agents for various T-cell lymphomas, including cutaneous T-cell lymphoma, peripheral T-cell lymphoma, and adult T-cell lymphoma/leukemia. CCR4 is an important therapeutic target molecule because mogamulizumab, an anti-CCR4 antibody, has shown promising efficacy against various T-cell lymphomas. In this study, we examined the in vitro synergistic effects of mogamulizumab and histone deacetylase inhibitors against various T cell lymphomas. First, we examined the expression of CCR4 mRNA and surface CCR4 in various T-cell lymphoma cell lines and found that it was downregulated upon treatment with vorinostat, a pan-histone deacetylase inhibitor. Next, we used isoform-specific histone deacetylase inhibitors and short-interfering RNA to determine the histone deacetylase isoform involved in the regulation of CCR4, and demonstrated that romidepsin, a class I selective histone deacetylase inhibitor, reduced CCR4 most efficiently. Moreover, among class I histone deacetylases, histone deacetylase 2 knockdown led to a reduction of CCR4 in lymphoma cells, suggesting that CCR4 expression is mainly regulated by histone deacetylase 2. When we examined the CCR4 expression in skin samples from primary cutaneous T cell lymphoma, obtained from the same patients before and after vorinostat treatment, we found that CCR4 expression was greatly reduced after treatment. Finally, when we conducted an antibody-dependent cell-mediated cytotoxicity assay with mogamulizumab by using various lymphoma cells, we found that the efficacy of mogamulizumab was significantly reduced by pretreatment with vorinostat. Altogether, our results suggest that the primary use of histone deacetylase inhibitors before treatment with mogamulizumab might not be suitable to obtain synergistic effects. Moreover, these results have potential implications for optimal therapeutic sequences in various CCR4-positive T-cell lymphomas. PMID- 29025907 TI - Depletion of SIRT6 enzymatic activity increases acute myeloid leukemia cells' vulnerability to DNA-damaging agents. AB - Genomic instability plays a pathological role in various malignancies, including acute myeloid leukemia (AML), and thus represents a potential therapeutic target. Recent studies demonstrate that SIRT6, a NAD+-dependent nuclear deacetylase, functions as genome-guardian by preserving DNA integrity in different tumor cells. Here, we demonstrate that also CD34+ blasts from AML patients show ongoing DNA damage and SIRT6 overexpression. Indeed, we identified a poor-prognostic subset of patients, with widespread instability, which relies on SIRT6 to compensate for DNA-replication stress. As a result, SIRT6 depletion compromises the ability of leukemia cells to repair DNA double-strand breaks that, in turn, increases their sensitivity to daunorubicin and Ara-C, both in vitro and in vivo In contrast, low SIRT6 levels observed in normal CD34+ hematopoietic progenitors explain their weaker sensitivity to genotoxic stress. Intriguingly, we have identified DNA-PKcs and CtIP deacetylation as crucial for SIRT6-mediated DNA repair. Together, our data suggest that inactivation of SIRT6 in leukemia cells leads to disruption of DNA-repair mechanisms, genomic instability and aggressive AML. This synthetic lethal approach, enhancing DNA damage while concomitantly blocking repair responses, provides the rationale for the clinical evaluation of SIRT6 modulators in the treatment of leukemia. PMID- 29025911 TI - Treat or palliate: outcomes of very elderly myeloma patients. PMID- 29025910 TI - Protein arginine methyltransferase 6 controls erythroid gene expression and differentiation of human CD34+ progenitor cells. AB - Hematopoietic differentiation is driven by transcription factors, which orchestrate a finely tuned transcriptional network. At bipotential branching points lineage decisions are made, where key transcription factors initiate cell type-specific gene expression programs. These programs are stabilized by the epigenetic activity of recruited chromatin-modifying cofactors. An example is the association of the transcription factor RUNX1 with protein arginine methyltransferase 6 (PRMT6) at the megakaryocytic/erythroid bifurcation. However, little is known about the specific influence of PRMT6 on this important branching point. Here, we show that PRMT6 inhibits erythroid gene expression during megakaryopoiesis of primary human CD34+ progenitor cells. PRMT6 is recruited to erythroid genes, such as glycophorin A Consequently, a repressive histone modification pattern with high H3R2me2a and low H3K4me3 is established. Importantly, inhibition of PRMT6 by shRNA or small molecule inhibitors leads to upregulation of erythroid genes and promotes erythropoiesis. Our data reveal that PRMT6 plays a role in the control of erythroid/megakaryocytic differentiation and open up the possibility that manipulation of PRMT6 activity could facilitate enhanced erythropoiesis for therapeutic use. PMID- 29025912 TI - Variable outcome and methylation status according to CEBPA mutant type in double mutated acute myeloid leukemia patients and the possible implications for treatment. AB - Although CEBPA double-mutated (CEBPADM) acute myeloid leukemia is considered to be a favorable-risk disease, relapse remains a major cause of treatment failure. Most CEBPADM patients have a classic biallelic mutant combination with an N terminal mutation leading to production of p30 protein plus a C-terminal loss-of function in-frame indel mutation (CEBPAClassic-DM), but approximately one-third of cases have one or more non-classic mutations, with diverse combinations reported, and there is little information on the consequences of such mutants. We evaluated outcome in a cohort of 104 CEBPADM patients, 79 CEBPAClassic-DM and 25 with non-classic mutants, and found that the latter may have poorer survival (5 year overall survival 64% vs. 46%; P=0.05), particularly post relapse (41% vs. 0%; P=0.02). However, for this analysis, all non-classic cases were grouped together, irrespective of mutant combination. As CEBPADM cases have been reported to be hypermethylated, we used methylation profiling to assess whether this could segregate the different mutants. We developed a CEBPAClassic-DM methylation signature from a preliminary cohort of 10 CEBPADM (including 8 CEBPAClassic-DM) and 30 CEBPA wild-type (CEBPAWT) samples, and independently validated the signature in 17 CEBPAClassic-DM cases. Assessment of the signature in 16 CEBPADM cases with different non-classic mutant combinations showed that only 31% had a methylation profile equivalent to CEBPAClassic-DM whereas for 69% the profile was either intermediate between CEBPAClassic-DM and CEBPAWT or equivalent to CEBPAWT These results suggest that CEBPADM cases with non-classic mutants may be functionally different from those with CEBPAClassic-DM mutants, and should not automatically be included in the same prognostic group. (AML12 is registered under ISRCTN17833622 and AML15 under ISRCTN17161961). PMID- 29025914 TI - Dendritic Cytoskeletal Architecture Is Modulated by Combinatorial Transcriptional Regulation in Drosophila melanogaster. AB - Transcription factors (TFs) have emerged as essential cell autonomous mediators of subtype specific dendritogenesis; however, the downstream effectors of these TFs remain largely unknown, as are the cellular events that TFs control to direct morphological change. As dendritic morphology is largely dictated by the organization of the actin and microtubule (MT) cytoskeletons, elucidating TF mediated cytoskeletal regulatory programs is key to understanding molecular control of diverse dendritic morphologies. Previous studies in Drosophila melanogaster have demonstrated that the conserved TFs Cut and Knot exert combinatorial control over aspects of dendritic cytoskeleton development, promoting actin and MT-based arbor morphology, respectively. To investigate transcriptional targets of Cut and/or Knot regulation, we conducted systematic neurogenomic studies, coupled with in vivo genetic screens utilizing multi-fluor cytoskeletal and membrane marker reporters. These analyses identified a host of putative Cut and/or Knot effector molecules, and a subset of these putative TF targets converge on modulating dendritic cytoskeletal architecture, which are grouped into three major phenotypic categories, based upon neuromorphometric analyses: complexity enhancer, complexity shifter, and complexity suppressor. Complexity enhancer genes normally function to promote higher order dendritic growth and branching with variable effects on MT stabilization and F-actin organization, whereas complexity shifter and complexity suppressor genes normally function in regulating proximal-distal branching distribution or in restricting higher order branching complexity, respectively, with spatially restricted impacts on the dendritic cytoskeleton. Collectively, we implicate novel genes and cellular programs by which TFs distinctly and combinatorially govern dendritogenesis via cytoskeletal modulation. PMID- 29025915 TI - RL-SKAT: An Exact and Efficient Score Test for Heritability and Set Tests. AB - Testing for the existence of variance components in linear mixed models is a fundamental task in many applicative fields. In statistical genetics, the score test has recently become instrumental in the task of testing an association between a set of genetic markers and a phenotype. With few markers, this amounts to set-based variance component tests, which attempt to increase power in association studies by aggregating weak individual effects. When the entire genome is considered, it allows testing for the heritability of a phenotype, defined as the proportion of phenotypic variance explained by genetics. In the popular score-based Sequence Kernel Association Test (SKAT) method, the assumed distribution of the score test statistic is uncalibrated in small samples, with a correction being computationally expensive. This may cause severe inflation or deflation of P-values, even when the null hypothesis is true. Here, we characterize the conditions under which this discrepancy holds, and show it may occur also in large real datasets, such as a dataset from the Wellcome Trust Case Control Consortium 2 (n = 13,950) study, and, in particular, when the individuals in the sample are unrelated. In these cases, the SKAT approximation tends to be highly overconservative and therefore underpowered. To address this limitation, we suggest an efficient method to calculate exact P-values for the score test in the case of a single variance component and a continuous response vector, which can speed up the analysis by orders of magnitude. Our results enable fast and accurate application of the score test in heritability and in set-based association tests. Our method is available in http://github.com/cozygene/RL-SKAT. PMID- 29025913 TI - Analyses of the FranceCoag cohort support differences in immunogenicity among one plasma-derived and two recombinant factor VIII brands in boys with severe hemophilia A. AB - Around one third of boys with severe hemophilia A develop inhibitors (neutralizing antibodies) against their therapeutic factor VIII product. This adverse effect may result in more life-threatening bleeding, disability, impaired quality of life, and costly care. We compared the incidence of inhibitors in boys treated with the three factor VIII products most used in France: one plasma derived (Factane) and two recombinant products (Advate and Kogenate Bayer). A previously untreated cohort of patients was created in 1994 to investigate risk factors for inhibitor development. We selected boys with severe hemophilia A (factor VIII <1 IU/dL) first treated with one of the three factor VIII products studied. Details of product infusions, inhibitor assays and main fixed and time varying inhibitor risk factors were recorded for the first 75 exposure days. Three outcomes (all inhibitors, high-titer inhibitors and subsequently treated inhibitors) were analyzed by univariate and multivariate Cox models. We studied 395 boys first treated between 2001 and 2016 (131, 137, and 127 with Factane, Advate, and Kogenate Bayer, respectively). Clinically significant inhibitors were diagnosed in 121 patients (70 high-titer). The incidence of high-titer inhibitors was significantly associated with the factor VIII product received (P=0.005): the cumulative incidence at 75 exposure days was 12.7% (95% CI: 7.7-20.6) with Factane, 20.4% (95% CI: 14.0-29.1) with Advate, and 31.6% (95% CI: 23.5-41.7) with Kogenate Bayer. The low inhibitor incidence observed with Factane is concordant with recent findings from the SIPPET randomized trial. These consistent results from observational and experimental studies should lead to improved care for previously untreated patients and cost savings for healthcare systems worldwide. PMID- 29025918 TI - Contemporary endovascular and open aneurysm treatment in the era of flow diversion. AB - Clinical outcomes have improved considerably over the last decade for patients with ruptured and unruptured aneurysms. Modern endovascular techniques, such as flow diversion, are associated with high aneurysm occlusion rates and have become a popular treatment modality for many types of aneurysms. However, the safety and effectiveness of flow diversion has not yet been established in trials comparing it with traditional aneurysm treatments. Moreover, there are some types of aneurysms that may not be appropriate for endovascular coiling, such as wide necked aneurysms located at branch points of major vessels, large saccular aneurysms with multiple efferent arteries, dolichoectatic aneurysms, large aneurysms with mass effect, when there are technical complications with endovascular treatment, when patients cannot tolerate or have contraindications to antiplatelet therapy or in the setting of a subarachnoid haemorrhage. For these cases, open cerebrovascular surgery remains important. This review provides a discussion on the current trends and evidence for both flow diversion and open cerebrovascular surgery for complex aneurysms that may not be suitable for coiling. We emphasise a continued important role for surgical treatment in certain situations. PMID- 29025916 TI - A Predictive Model for Time-to-Flowering in the Common Bean Based on QTL and Environmental Variables. AB - The common bean is a tropical facultative short-day legume that is now grown in tropical and temperate zones. This observation underscores how domestication and modern breeding can change the adaptive phenology of a species. A key adaptive trait is the optimal timing of the transition from the vegetative to the reproductive stage. This trait is responsive to genetically controlled signal transduction pathways and local climatic cues. A comprehensive characterization of this trait can be started by assessing the quantitative contribution of the genetic and environmental factors, and their interactions. This study aimed to locate significant QTL (G) and environmental (E) factors controlling time-to flower in the common bean, and to identify and measure G * E interactions. Phenotypic data were collected from a biparental [Andean * Mesoamerican] recombinant inbred population (F11:14, 188 genotypes) grown at five environmentally distinct sites. QTL analysis using a dense linkage map revealed 12 QTL, five of which showed significant interactions with the environment. Dissection of G * E interactions using a linear mixed-effect model revealed that temperature, solar radiation, and photoperiod play major roles in controlling common bean flowering time directly, and indirectly by modifying the effect of certain QTL. The model predicts flowering time across five sites with an adjusted r-square of 0.89 and root-mean square error of 2.52 d. The model provides the means to disentangle the environmental dependencies of complex traits, and presents an opportunity to identify in silico QTL allele combinations that could yield desired phenotypes under different climatic conditions. PMID- 29025917 TI - SID-1 Domains Important for dsRNA Import in Caenorhabditis elegans. AB - In the nematode Caenorhabditis elegans, RNA interference (RNAi) triggered by double-stranded RNA (dsRNA) spreads systemically to cause gene silencing throughout the organism and its progeny. We confirm that Caenorhabditis nematode SID-1 orthologs have dsRNA transport activity and demonstrate that the SID-1 paralog CHUP-1 does not transport dsRNA. Sequence comparison of these similar proteins, in conjunction with analysis of loss-of-function missense alleles, identifies several conserved 2-7 amino acid microdomains within the extracellular domain (ECD) that are important for dsRNA transport. Among these missense alleles, we identify and characterize a sid-1 allele, qt95, which causes tissue specific silencing defects most easily explained as a systemic RNAi export defect. However, we conclude from genetic and biochemical analyses that sid 1(qt95) disrupts only import, and speculate that the apparent export defect is caused by the cumulative effect of sequentially impaired dsRNA import steps. Thus, consistent with previous studies, we fail to detect a requirement for sid-1 in dsRNA export, but demonstrate for the first time that SID-1 functions in the intestine to support environmental RNAi (eRNAi). PMID- 29025919 TI - Adult-onset biotinidase deficiency: two individuals with severe, but reversible optic neuropathy. PMID- 29025920 TI - Heartbeat: Glycaemic control and excess risk of major coronary events in type 1 diabetes. PMID- 29025921 TI - Phosphodiesterase-5 inhibitors as novel cardioprotective agents: have we reached threshold for large-scale clinical trials? PMID- 29025922 TI - The results of a pharmacoeconomic study: incremental cost-effectiveness ratio versus net monetary benefit. PMID- 29025925 TI - Strength of Temporal White Matter Pathways Predicts Semantic Learning. AB - Learning the associations between words and meanings is a fundamental human ability. Although the language network is cortically well defined, the role of the white matter pathways supporting novel word-to-meaning mappings remains unclear. Here, by using contextual and cross-situational word learning, we tested whether learning the meaning of a new word is related to the integrity of the language-related white matter pathways in 40 adults (18 women). The arcuate, uncinate, inferior-fronto-occipital and inferior-longitudinal fasciculi were virtually dissected using manual and automatic deterministic fiber tracking. Critically, the automatic method allowed assessing the white matter microstructure along the tract. Results demonstrate that the microstructural properties of the left inferior-longitudinal fasciculus predict contextual learning, whereas the left uncinate was associated with cross-situational learning. In addition, we identified regions of special importance within these pathways: the posterior middle temporal gyrus, thought to serve as a lexical interface and specifically related to contextual learning; the anterior temporal lobe, known to be an amodal hub for semantic processing and related to cross situational learning; and the white matter near the hippocampus, a structure fundamental for the initial stages of new-word learning and, remarkably, related to both types of word learning. No significant associations were found for the inferior-fronto-occipital fasciculus or the arcuate. While previous results suggest that learning new phonological word forms is mediated by the arcuate fasciculus, these findings show that the temporal pathways are the crucial neural substrate supporting one of the most striking human abilities: our capacity to identify correct associations between words and meanings under referential indeterminacy.SIGNIFICANCE STATEMENT The language-processing network is cortically (i.e., gray matter) well defined. However, the role of the white matter pathways that support novel word learning within this network remains unclear. In this work, we dissected language-related (arcuate, uncinate, inferior fronto-occipital, and inferior-longitudinal) fasciculi using manual and automatic tracking. We found the left inferior-longitudinal fasciculus to be predictive of word-learning success in two word-to-meaning tasks: contextual and cross situational learning paradigms. The left uncinate was predictive of cross situational word learning. No significant correlations were found for the arcuate or the inferior-fronto-occipital fasciculus. While previous results showed that learning new phonological word forms is supported by the arcuate fasciculus, these findings demonstrate that learning new word-to-meaning associations is mainly dependent on temporal white matter pathways. PMID- 29025923 TI - Plasticity of Signaling by Spinal Estrogen Receptor alpha, kappa-Opioid Receptor, and Metabotropic Glutamate Receptors over the Rat Reproductive Cycle Regulates Spinal Endomorphin 2 Antinociception: Relevance of Endogenous-Biased Agonism. AB - We previously showed that intrathecal application of endomorphin 2 [EM2; the highly specific endogenous MU-opioid receptor (MOR) ligand] induces antinociception that varies with stage of the rat estrous cycle: minimal during diestrus and prominent during proestrus. Earlier studies, however, did not identify proestrus-activated signaling strategies that enable spinal EM2 antinociception. We now report that in female rats, increased spinal dynorphin release and kappa-opioid receptor (KOR) signaling, as well as the emergence of glutamate-activated metabotropic glutamate receptor 1 (mGluR1) signaling, are critical to the transition from an EM2 nonresponsive state (during diestrus) to an analgesically responsive state (during proestrus). Differential signaling by mGluR1, depending on its activation by membrane estrogen receptor alpha (mERalpha; during diestrus) versus glutamate (during proestrus), concomitant with the ebb and flow of spinal dynorphin/KOR signaling, functions as a switch, preventing or promoting, respectively, spinal EM2 antinociception. Importantly, EM2 and glutamate-containing varicosities appose spinal neurons that express MOR along with mGluRs and mERalpha, suggesting that signaling mechanisms regulating analgesic effectiveness of intrathecally applied EM2 also pertain to endogenous EM2. Regulation of spinal EM2 antinociception by both the nature of the endogenous mGluR1 activator (i.e., endogenous biased agonism at mGluR1) and changes in spinal dynorphin/KOR signaling represent a novel mechanism for modulating analgesic responsiveness to endogenous EM2 (and perhaps other opioids). This points the way for developing noncanonical pharmacological approaches to pain management by harnessing endogenous opioids for pain relief.SIGNIFICANCE STATEMENT The current prescription opioid abuse epidemic underscores the urgency to develop alternative pharmacotherapies for managing pain. We find that the magnitude of spinal endomorphin 2 (EM2) antinociception not only varies with stage of reproductive cycle, but is also differentially regulated during diestrus and proestrus. This finding highlights the need for sex specific and cycle-specific approaches to pain management. Additionally, our finding that spinal EM2 antinociception in female rats is regulated by both the ebb and flow of spinal dynorphin/kappa-opioid receptor signaling over the estrous cycle, as well as the nature of the endogenous mGluR1 activator, could encourage noncanonical pharmacological approaches to pain management, such as harnessing endogenous opioids for pain relief. PMID- 29025924 TI - Dmrt5, a Novel Neurogenic Factor, Reciprocally Regulates Lhx2 to Control the Neuron-Glia Cell-Fate Switch in the Developing Hippocampus. AB - Regulation of the neuron-glia cell-fate switch is a critical step in the development of the CNS. Previously, we demonstrated that Lhx2 is a necessary and sufficient regulator of this process in the mouse hippocampal primordium, such that Lhx2 overexpression promotes neurogenesis and suppresses gliogenesis, whereas loss of Lhx2 has the opposite effect. We tested a series of transcription factors for their ability to mimic Lhx2 overexpression and suppress baseline gliogenesis, and also to compensate for loss of Lhx2 and suppress the resulting enhanced level of gliogenesis in the hippocampus. Here, we demonstrate a novel function of Dmrt5/Dmrta2 as a neurogenic factor in the developing hippocampus. We show that Dmrt5, as well as known neurogenic factors Neurog2 and Pax6, can each not only mimic Lhx2 overexpression, but also can compensate for loss of Lhx2 to different extents. We further uncover a reciprocal regulatory relationship between Dmrt5 and Lhx2, such that each can compensate for loss of the other. Dmrt5 and Lhx2 also have opposing regulatory control on Pax6 and Neurog2, indicating a complex bidirectionally regulated network that controls the neuron glia cell-fate switch.SIGNIFICANCE STATEMENT We identify Dmrt5 as a novel regulator of the neuron-glia cell-fate switch in the developing hippocampus. We demonstrate Dmrt5 to be neurogenic, and reciprocally regulated by Lhx2: loss of either factor promotes gliogenesis; overexpression of either factor suppresses gliogenesis and promotes neurogenesis; each can substitute for loss of the other. Furthermore, each factor has opposing effects on established neurogenic genes Neurog2 and Pax6 Dmrt5 is known to suppress their expression, and we show that Lhx2 is required to maintain it. Our study reveals a complex regulatory network with bidirectional control of a fundamental feature of CNS development, the control of the production of neurons versus astroglia in the developing hippocampus.Finally, we confirm that Lhx2 binds a highly conserved putative enhancer of Dmrt5, suggesting an evolutionarily conserved regulatory relationship between these factors. Our findings uncover a complex network that involves Lhx2, Dmrt5, Neurog2, and Pax6, and that ensures the appropriate amount and timing of neurogenesis and gliogenesis in the developing hippocampus. PMID- 29025927 TI - Genome Sequence of Fowl Aviadenovirus A Strain JM1/1, Which Caused Gizzard Erosions in Japan. AB - This study reports the complete genome sequence of fowl aviadenovirus A strain JM1/1, which caused gizzard erosions in broilers occurring in Japan. The JM1/1 genome is 43,809 bp in length and most closely related to the strain chicken embryo lethal orphan (CELO); moreover, multiple site insertions and deletions were found. PMID- 29025926 TI - Enhancing Spinal Plasticity Amplifies the Benefits of Rehabilitative Training and Improves Recovery from Stroke. AB - The limited recovery that occurs following stroke happens almost entirely in the first weeks postinjury. Moreover, the efficacy of rehabilitative training is limited beyond this narrow time frame. Sprouting of spared corticospinal tract axons in the contralesional spinal cord makes a significant contribution to sensorimotor recovery, but this structural plasticity is also limited to the first few weeks after stroke. Here, we tested the hypothesis that inducing plasticity in the spinal cord during chronic stroke could improve recovery from persistent sensorimotor impairment. We potentiated spinal plasticity during chronic stroke, weeks after the initial ischemic injury, in male Sprague-Dawley rats via intraspinal injections of chondroitinase ABC. Our data show that chondroitinase injections into the contralesional gray matter of the cervical spinal cord administered 28 d after stroke induced significant sprouting of corticospinal axons originating in the peri-infarct cortex. Chondroitinase ABC injection during chronic stroke without additional training resulted in moderate improvements of sensorimotor deficits. Importantly, this therapy dramatically potentiated the efficacy of rehabilitative training delivered during chronic stroke in a skilled forelimb reaching task. These novel data suggest that spinal therapy during chronic stroke can amplify the benefits of delayed rehabilitative training with the potential to reduce permanent disability in stroke survivors.SIGNIFICANCE STATEMENT The brain and spinal cord undergo adaptive rewiring ("plasticity") following stroke. This plasticity allows for partial functional recovery from stroke induced sensorimotor impairments. However, the plasticity that underlies recovery occurs predominantly in the first weeks following stroke, and most stroke survivors are left with permanent disability even after rehabilitation. Using animal models, our data show that removal of plasticity-inhibiting signals in the spinal cord (via intraspinal injections of the enzyme chondroitinase ABC) augments rewiring of circuits connecting the brain to the spinal cord, even weeks after stroke. Moreover, this plasticity can be harnessed by rehabilitative training to significantly promote sensorimotor recovery. Thus, intraspinal therapy may augment rehabilitative training and improve recovery even in individuals living with chronic disability due to stroke. PMID- 29025928 TI - Draft Genome Sequence of Lactobacillus plantarum Strain A6, a Strong Acid Producer Isolated from a Vietnamese Fermented Sausage (Nem Chua). AB - Lactobacillus plantarum strain A6, a strong acid producer, was isolated from a Vietnamese fermented sausage (nem chua). Here, we report the genome sequence of this strain (3,368,579 bp). PMID- 29025929 TI - Whole-Genome Sequence of Bifidobacterium longum Strain Indica, Isolated from the Gut of a Healthy Indian Adult. AB - Bifidobacterium longum, a Gram-positive rod-shaped anaerobic bacterium, inhabits the human gastrointestinal tract and contributes significantly to oligosaccharide production, amino acid metabolism, and protection against intestinal inflammation. Here, we report the whole-genome sequence of B. longum, which was isolated from the gastrointestinal tract of a healthy Indian adult. PMID- 29025930 TI - Draft Genome Sequence of a Picorna-Like Virus Associated with Gill Tissue in Clinically Normal Brook Trout, Salvelinus fontinalis. AB - Here, we report a draft genome sequence of a picorna-like virus associated with brook trout, Salvelinus fontinalis, gill tissue. The draft genome comprises 8,681 nucleotides, excluding the poly(A) tract, and contains two open reading frames. It is most similar to picorna-like viruses that infect invertebrates. PMID- 29025931 TI - Complete Genome Sequence of a Porcine Epidemic Diarrhea Virus Isolated in Belgorod, Russia, in 2008. AB - We identified porcine epidemic diarrhea virus (PEDV) in stool samples from sick piglets in the Belgorod region of Russia. The complete coding genome sequence of 28,295 nucleotides (nt) of PEDV was generated. Compared to a prototype PEDV strain (DR13), an extreme number of mismatches in the S gene were revealed. PMID- 29025932 TI - Chloroplast Genome Sequences of Seven Strains of the Bloom-Forming Raphidophyte Heterosigma akashiwo. AB - We report here the complete chloroplast genome sequences of seven strains of the bloom-forming raphidophyte Heterosigma akashiwo These ~160-kb sequences contain 124 protein-, 6 rRNA-, and 34 tRNA-coding sequences. Notable sequence variations were observed among these seven sequenced and two previously characterized strains. PMID- 29025933 TI - Complete Genome Sequences of Four Brucella Strains Isolated from China. AB - Brucella spp. are facultative intracellular pathogens that cause a contagious zoonotic disease. Twelve different species are currently identified. This study presents the complete genome sequences of four Brucella strains. These complete genomes were annotated and the contents compared to those of other strains isolated from China. PMID- 29025934 TI - Draft Genome Sequence of Salmonella enterica Serovar Senftenberg 070885 and Its Linalool-Adapted Mutant. AB - Here we report the genome sequences of both Salmonella Senftenberg 070885, a clinical isolate from the 2007 outbreak linked to basil, and its mutant linalool adapted S Senftenberg (LASS). These draft genomes of S Senftenberg may enable the identification of bacterial genes responsible for resistance to basil oil. PMID- 29025935 TI - Two Complete Sequences for Genomes of Human Respiratory Syncytial Virus Genotype ON1 Field Strains from Beijing, China. AB - Here, we report the complete sequences for genomes of two human respiratory syncytial virus field strains. It was determined by sequence alignment and phylogenetics that they belong to genotype ON1, characterized by a 72-nucleotide duplication in the C termini of the attachment protein G genes. PMID- 29025936 TI - Complete Genome Sequence of Super Biofilm-Elaborating Staphylococcus aureus Isolated in Japan. AB - Staphylococcus aureus JP080, previously named TF2758, is a clinical isolate from an atheroma and a super biofilm-elaborating strain whose biofilm elaboration is dependent solely on polysaccharide poly-N-acetylglucosamine/polysaccharide intercellular adhesin (PNAG/PIA). Here, we report the complete genome sequence of strain JP080, which consists of one chromosome and one circular plasmid. PMID- 29025938 TI - Draft Genome Sequence of Bacillus velezensis GF610, a Producer of Potent Anti Listeria Agents. AB - Bacillus velezensis GF610 was isolated from soil in Illinois, USA, and found to produce amyloliquecidin GF610, a potent two-component antimicrobial peptide. We report here the GF610 strain draft genome sequence, which contains 4.29 Mb and an overall GC content of 45.91%. PMID- 29025937 TI - Draft Genome Sequence of Romboutsia maritimum sp. nov. Strain CCRI-22766T, Isolated from Coastal Estuarine Mud. AB - The Romboutsia maritimum sp. nov. CCRI-22766T strain was isolated from coastal estuarine mud in New Zealand. The genome assembly comprised 2,854,352 bp, with 27.1% G+C content. This is the first documentation that reports the genome sequence of R. maritimum. PMID- 29025939 TI - Draft Genome Sequences of Two Novel Sub-Antarctic Williamsia Species. AB - Illumina MiSeq shotgun sequencing technology was used to sequence the genomes of two novel sub-Antarctic Williamsia species, designated strains 1135 and 1138. The estimated genome sizes for strains 1135 and 1138 are 5.99 Mb and 6.08 Mb, respectively. This genome sequence information will aid in understanding the lipid metabolic pathways of cold-tolerant Williamsia species. PMID- 29025940 TI - Detection and Whole-Genome Analysis of a Zoonotic G8P[14] Rotavirus Strain Isolated from a Child with Diarrhea. AB - The group A rotavirus strain SI-2987/09 was detected in a child with severe diarrhea. The whole-genome analysis revealed the G8-P[14]-I2-R2-C2-M2-A3-N2-T6-E2 H3 genome constellation, which reflects the zoonotic transmission of the strain most probably from the ungulate group. This was also confirmed by the high nucleotide identity to those animal rotavirus strains. PMID- 29025941 TI - Draft Genome Sequence of a Rare Pigmented Mycobacterium avium subsp. paratuberculosis Type C Strain. AB - Mycobacterium avium subsp. paratuberculosis is the causative agent of paratuberculosis. We report here the draft genome sequence of a rare pigmented M. avium subsp. paratuberculosis type C strain, comprising 58 contigs and having a genome size of 4,851,414 bp. The genome will assist in the execution of pigmentation and virulence studies on this mycobacterium. PMID- 29025942 TI - Complete Genome Sequence of Porphyrobacter sp. Strain CACIAM 03H1, a Proteobacterium Obtained from a Nonaxenic Culture of Microcystis aeruginosa. AB - Here, we present a complete genome sequence and annotation of Porphyrobacter sp. strain CACIAM 03H1, which was obtained from a nonaxenic culture of Microcystis aeruginosa, a cyanobacterium isolated from an Amazonian freshwater environment. PMID- 29025943 TI - Draft Genome Sequence of Bacillus aryabhattai Strain PHB10, a Poly(3 Hydroxybutyrate)-Accumulating Bacterium Isolated from Domestic Sewerage. AB - Bacillus aryabhattai PHB10 is a poly(3-hydroxybutyrate) (PHB)-accumulating bacterium isolated from domestic sewerage. Here, we report the 4.19-Mb draft genome sequence, with 4,050 protein-coding genes and a G+C content of 37.5%. This sequence will be helpful in the study of the high-level PHB accumulation mechanism of the strain. PMID- 29025944 TI - Draft Genome Sequences of Nine Livestock-Associated Methicillin-Resistant Staphylococcus aureus Sequence Type 5 Isolates from Humans with Long-Term Swine Contact. AB - Humans have been found to harbor livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) isolates. LA-MRSA isolates are considered adapted to colonizing livestock and less pathogenic in humans than their hospital- and community-acquired counterparts. Here, we present nine LA-MRSA sequence type 5 isolates from veterinarians with long-term swine contact. PMID- 29025945 TI - Draft Genome Sequences of Nine Livestock-Associated Methicillin-Resistant Staphylococcus aureus Sequence Type 5 Isolates Obtained from Humans after Short Term Swine Contact. AB - Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) sequence type 5 (ST5) has raised concerns surrounding the potential for these isolates to colonize or cause disease in humans with swine contact. Here, we report draft genome sequences for nine LA-MRSA ST5 isolates obtained from humans after short term swine contact. PMID- 29025946 TI - Complete Genome Sequence of Peste des Petits Ruminants Virus from Georgia, 2016. AB - We report here the complete genome sequence of a peste des petits ruminants virus (PPRV) from the first outbreak of the disease in Georgia in January 2016. Genome sequencing was performed using Illumina next-generation sequencing technology in conjunction with Sanger sequencing. This PPRV/Georgia/Tbilisi/2016 genome sequence clustered within lineage IV PPRV viruses. PMID- 29025948 TI - Genome Sequences of Coxsackievirus B5 Isolates from Two Children with Meningitis in Australia. AB - Two coxsackievirus B5 (CVB5) strains were isolated from two children with aseptic meningitis in Australia. Their genomes were sequenced and found to be divergent from the previously reported CVB5 genome sequences, with both having 84% and 97% identities to the closest strains at the nucleotide and amino acid levels, respectively. PMID- 29025947 TI - Draft Genome Sequence of Brevibacillus laterosporus OSY-I1, a Strain That Produces Brevibacillin, Which Combats Drug-Resistant Gram-Positive Bacteria. AB - Brevibacillus laterosporus OSY-I1 is a Gram-positive spore-forming bacterium isolated from soil. The bacterium produces brevibacillin, an antimicrobial lipopeptide effective against several drug-resistant Gram-positive bacteria. Here, we present the draft genome sequence of the strain OSY-I1 and the gene cluster responsible for the biosynthesis of brevibacillin. PMID- 29025949 TI - Genome Sequence of Saccharomyces cerevisiae Strain Kagoshima No. 2, Used for Brewing the Japanese Distilled Spirit Shochu. AB - Here, we report a draft genome sequence of Saccharomyces cerevisiae strain Kagoshima no. 2, which is used for brewing shochu, a traditional distilled spirit in Japan. The genome data will facilitate an understanding of the evolutional traits and genetic background related to the characteristic features of strain Kagoshima no. 2. PMID- 29025951 TI - Erratum for Orr et al., "Draft Genome Sequences of Two Unclassified Chitinophagaceae Bacteria, IBVUCB1 and IBVUCB2, Isolated from Environmental Samples". PMID- 29025950 TI - High-Quality Draft Genome Sequence of Burkholderia contaminans CH-1, a Gram Negative Bacterium That Metabolizes 2-Azahypoxanthine, a Plant Growth-Regulating Compound. AB - Burkholderia contaminans strain CH-1 converts 2-azahypoxnathine to 2-aza-8 oxohypoxanthine, plant growth-regulating compounds, by oxidation. We report here the high-quality draft genome sequence of B. contaminans CH-1. The genome contains 8,065 protein-coding sequences, including several genes possibly involved in metabolizing 2-azahypoxanthine. PMID- 29025952 TI - Permanent Draft Genome Sequences for Mesorhizobium sp. Strains LCM 4576, LCM 4577, and ORS3428, Salt-Tolerant, Nitrogen-Fixing Bacteria Isolated from Senegalese Soils. AB - The genus Mesorhizobium contains many species that are able to form nitrogen fixing nodules on plants of the legume family. Here, we report the draft genome sequences for three Mesorhizobium strains. The genome sizes of strains LCM 4576, LCM 4577, and ORS3428 were 7.24, 7.02, and 6.55 Mbp, respectively. PMID- 29025953 TI - Complete Genome Sequence of Lactobacillus plantarum Oregon-R-modENCODE Strain BDGP2 Isolated from Drosophila melanogaster Gut. AB - Lactobacillus plantarum Oregon-R-modENCODE strain BDGP2 was isolated from the gut of Drosophila melanogaster for functional host microbial interaction studies. The complete genome comprised a single circular genome of 3,407,160 bp, with a G+C content of 44%, and four plasmids. PMID- 29025954 TI - Three Draft Genome Sequences of Vibrio coralliilyticus Strains Isolated from Bivalve Hatcheries. AB - Reported here are the genome sequences of three Vibrio coralliilyticus isolates RE87, AIC-7, and 080116A. Each strain was isolated in association with oyster larvae in commercial aquaculture systems. These draft genomes will be useful for further studies in understanding the genomic features contributing to V. coralliilyticus pathogenicity. PMID- 29025955 TI - Genome Sequence of Pseudomonas putida Strain ASAD, an Acetylsalicylic Acid Degrading Bacterium. AB - Pseudomonas putida strain ASAD was isolated from compost because of its ability to utilize aspirin (acetylsalicylic acid) as a carbon and energy source. We report the draft genome sequence of strain ASAD, with an estimated length of 6.9 Mb. Study of this isolate will provide insight into the aspirin biodegradation pathway. PMID- 29025956 TI - Erratum for Orr et al., "Draft Genome Sequences of Two Unclassified Bacteria, Sphingomonas sp. Strains IBVSS1 and IBVSS2, Isolated from Environmental Samples". PMID- 29025957 TI - Admissions to Acute Care Within 30 and 90 Days of Discharge Home From a Pediatric Post-acute Care Hospital. AB - OBJECTIVES: Of all hospitalized children, those with medical complexity have the highest likelihood of hospital readmission. Post-acute hospital care could potentially help stabilize the health of these children. We examined the frequency of acute care hospital admissions after discharge home from a post acute care hospital (PACH). METHODS: A retrospective cohort analysis of 448 children with medical complexity discharged from a PACH from January 1, 2010, to December 31, 2015, with the main outcomes of acute care hospital readmissions 0 to 30 and 31 to 90 days after discharge home from a PACH. Demographic and clinical characteristics were compared between children with and without acute care readmission and between the 2 readmission groups. RESULTS: Ninety-nine children (22%) had a readmission to the acute care hospital. Of these readmissions, 61 (62%) occurred between 0 and 30 days and 38 (38%) between 31 and 90 days after PACH discharge. A higher percentage of children readmitted had high medical severity (>3 systems involved or ventilator dependent) compared with children not readmitted (68% vs 31%, P = .04). No differences were found between children who were readmitted and those who were not by sex, race, payer, length of stay, or age at PACH discharge. Additionally, no differences were found between children readmitted within 30 days and children readmitted 31 to 90 days after PACH discharge. CONCLUSIONS: The majority of children discharged home from a PACH do not require an acute care hospitalization within the first 3 months. Children with greater medical severity are readmitted more often than others. PMID- 29025959 TI - Challenges to improving occupational health in China. PMID- 29025958 TI - miR-34a Regulates Expression of the Stathmin-1 Oncoprotein and Prostate Cancer Progression. AB - In aggressive prostate cancers, the oncoprotein STMN1 (also known as stathmin 1 and oncoprotein 18) is often overexpressed. STMN1 is involved in various cellular processes, including cell proliferation, motility, and tumor metastasis. Here, it was found that the expression of STMN1 RNA and protein is elevated in metastatic prostate cancers. Knockdown of STMN1 resulted in reduced proliferation and invasion of cells and tumor growth and metastasis in vivo Furthermore, miR-34a downregulated STMN1 by directly binding to its 3'-UTR. Overexpression of miR-34a in prostate cancer cells reduced proliferation and colony formation, suggesting that it is a tumor suppressor. The transcriptional corepressor C-terminal binding protein 1 (CtBP1) negatively regulated expression of miR-34a. Furthermore, gene expression profiling of STMN1-modulated prostate cancer cells revealed molecular alterations, including elevated expression of growth differentiation factor 15 (GDF15), which is involved in cancer progression and potentially in STMN1 mediated oncogenesis. Thus, in prostate cancer, CtBP1-regulated miR-34a modulates STMN1 expression and is involved in cancer progression through the CtBP1?miR 34a?STMN1?GDF15 axis.Implications: The CtBP1?miR-34a?STMN1?GDF15 axis is a potential therapeutic target for treatment of aggressive prostate cancer. Mol Cancer Res; 16(7); 1125-37. (c)2017 AACR. PMID- 29025962 TI - Therapeutic hypothermia in acute traumatic spinal cord injury. AB - Therapeutic hypothermia is already widely acknowledged as an effective neuroprotective intervention, especially within the acute care setting in relation to conditions such as cardiac arrest and neonatal encephalopathy. Its multifactorial mechanisms of action, including lowering metabolic rate and reducing acute inflammatory cellular processes, ultimately provide protection for central nervous tissue from continuing injury following ischaemic or traumatic insult. Its clinical application within acute traumatic spinal cord injury would therefore seem very plausible, it having the potential to combat the pathophysiological secondary injury processes that can develop in the proceeding hours to days following the initial injury. As such it could offer invaluable assistance to lessen subsequent sensory, motor and autonomic dysfunction for an individual affected by this devastating condition. Yet research surrounding this intervention's applicability in this field is somewhat lacking, the majority being experimental. Despite a recent resurgence of interest, which in turn has produced encouraging results, there is a real possibility that this potentially transformational intervention for treating traumatic spinal cord injury could remain an experimental therapy and never reach clinical implementation. PMID- 29025960 TI - De Novo Assembly of a New Solanum pennellii Accession Using Nanopore Sequencing. AB - Updates in nanopore technology have made it possible to obtain gigabases of sequence data. Prior to this, nanopore sequencing technology was mainly used to analyze microbial samples. Here, we describe the generation of a comprehensive nanopore sequencing data set with a median read length of 11,979 bp for a self compatible accession of the wild tomato species Solanum pennellii We describe the assembly of its genome to a contig N50 of 2.5 MB. The assembly pipeline comprised initial read correction with Canu and assembly with SMARTdenovo. The resulting raw nanopore-based de novo genome is structurally highly similar to that of the reference S. pennellii LA716 accession but has a high error rate and was rich in homopolymer deletions. After polishing the assembly with Illumina reads, we obtained an error rate of <0.02% when assessed versus the same Illumina data. We obtained a gene completeness of 96.53%, slightly surpassing that of the reference S. pennellii Taken together, our data indicate that such long read sequencing data can be used to affordably sequence and assemble gigabase-sized plant genomes. PMID- 29025961 TI - Phosphate replacement in the critically ill: potential implications for military patients. AB - BACKGROUND: Severe hypophosphataemia in the intensive care unit (ICU) setting has been widely associated with adverse clinical outcomes across multiple organ systems, as well as increased mortality. However, the clinical significance of mild or moderate hypophosphataemia remains uncertain. This can lead to heterogeneous phosphate replacement protocols across different institutions. The aim of this study was to assess the significance of mild and moderate hypophosphataemia on clinical outcomes across several organ systems. METHOD: All patients over a 3-week period in our ICU were retrospectively analysed with admission serum phosphate compared with subsequent clinical outcomes after admission. Low serum phosphate (0.3-1.0 mmol/L), according to local protocol, was compared with normal serum phosphate (>1.0 mmol/L). RESULTS: Of the 72 patients admitted to intensive therapy unit during this period, 14/72 (19%) had phosphate levels deemed low (<1.0 mmol/L) and received phosphate supplementation. No significant difference was found between groups in terms of cardiac arrhythmias (p=0.55), capillary blood glucose (p=0.08) and serum lactate (p=0.32). Low phosphate (0.3-1.0 mmol/L) was not associated with increased likelihood of requiring ventilation. Platelet count was significantly lower in the low phosphate group (p=0.008). CONCLUSION: In our study, mild and moderate hypophosphataemia was not associated with adverse clinical outcome across most organ systems analysed. Given the current evidence and results of this study, we would suggest that there is a trend towards over-replacement of phosphate, representing a potential clinical safety issue as well as clear financial implications. PMID- 29025963 TI - Sacral dural arteriovenous fistulas: a diagnostic and therapeutic challenge - single-centre experience of 13 cases and review of the literature. AB - BACKGROUND: Sacral dural arteriovenous fistulas (DAVFs) are rare vascular abnormalities of the spine characterised by slowly progressive symptoms that can mimic different myelopathy disorders. OBJECT: To report our single Institution experience with sacral DAVFs. METHODS: We retrospectively reviewed the clinical records of patients admitted from 1 January 2006 to 31 December 2016 with a diagnosis of sacral DAVFs, treated by endovascular embolisation or surgical clipping. Clinical presentation, imaging characteristics, treatment results and follow-up were analysed. RESULTS: We identify 13 patients with sacral DAVFs supplied by lateral sacral arteries. Clinical presentation was characterised by different degrees of motor weakness and sphincter disturbances. In all patients, spinal MRI showed spinal cord hyperintensities with enhancement and prominent perimedullary vessels. Selective internal iliac angiography was mandatory to identify the exact location of the fistula. A complete embolisation was achieved in eight patients performing a single endovascular embolisation and in three patients performing a single surgical disconnection: two patients required combined procedures. Follow-up imaging showed a complete resolution of the spinal cord hyperintensities in 81% of patients and a reduction of the intramedullary enhancement in 91%. Gait improvement was observed in 73% of patients, while remaining stable in 27%. Sphincter disturbances improved in 36% of patients and remained stable in 64%. CONCLUSION: Awareness of sacral location of DAVFs is critical because standard spinal angiography will not identify sacral supplies, unless internal iliac arteries are properly examined. In our experience, the endovascular treatment show results comparable to surgery when the fistula point is correctly disconnected. PMID- 29025964 TI - False-Positive Newborn Screening for Cystic Fibrosis and Health Care Use. AB - OBJECTIVES: Evidence is mixed regarding the impact of false-positive (FP) newborn bloodspot screening (NBS) results on health care use. Using cystic fibrosis (CF) as an example, we determined the association of FP NBS results with health care use in infants and their mothers in Ontario, Canada. METHODS: We conducted a population-based cohort study of all infants with FP CF results (N = 1564) and screen-negative matched controls (N = 6256) born between April 2008 and November 2012 using linked health administrative data. Outcomes included maternal and infant physician and emergency visits and inpatient hospitalizations from the infant's third to 15th month of age. Negative binomial regression tested associations of NBS status with outcomes, adjusting for infant and maternal characteristics. RESULTS: A greater proportion of infants with FP results had >2 outpatient visits (16.2% vs 13.2%) and >2 hospital admissions (1.5% vs 0.7%) compared with controls; CF-related admissions and emergency department visits were not different from controls. Differences persisted after adjustment, with higher rates of outpatient visits (relative risk 1.39; 95% confidence interval 1.20-1.60) and hospital admissions (relative risk 1.67; 95% confidence interval 1.21-2.31) for FP infants. Stratified models indicated the effect of FP status was greater among those whose primary care provider was a pediatrician. No differences in health care use among mothers were detected. CONCLUSIONS: Higher use of outpatient services among FP infants may relate to a lengthy confirmatory testing process or follow-up carrier testing. However, increased rates of hospitalization might signal heightened perceptions of vulnerability among healthy infants. PMID- 29025966 TI - Notch Signaling: Linking Embryonic Lung Development and Asthmatic Airway Remodeling. AB - Lung development is mediated by assorted signaling proteins and orchestrated by complex mesenchymal-epithelial interactions. Notch signaling is an evolutionarily conserved cell-cell communication mechanism that exhibits a pivotal role in lung development. Notably, both aberrant expression and loss of regulation of Notch signaling are critically linked to the pathogenesis of various lung diseases, in particular, pulmonary fibrosis, lung cancer, pulmonary arterial hypertension, and asthmatic airway remodeling; implying that precise regulation of intensity and duration of Notch signaling is imperative for appropriate lung development. Moreover, evidence suggests that Notch signaling links embryonic lung development and asthmatic airway remodeling. Herein, we summarized all-recent advances associated with the mechanistic role of Notch signaling in lung development, consequences of aberrant expression or deletion of Notch signaling in linking early-impaired lung development and asthmatic airway remodeling, and all recently investigated potential therapeutic strategies to treat asthmatic airway remodeling. PMID- 29025965 TI - Inherited IL-12Rbeta1 Deficiency in a Child With BCG Adenitis and Oral Candidiasis: A Case Report. AB - Tuberculosis is a major worldwide problem, and protection from it is achieved mainly by live attenuated bacille Calmette-Guerin vaccine, which is capable of causing disease in immunocompromised host. Oral thrush is abnormal in healthy children, which suggests an underlying immunodeficiency. Mendelian susceptibility to mycobacterial disease is a rare primary immunodeficiency characterized by a selective predisposition to weakly virulent Mycobacteria and Salmonella and also predisposition to chronic mucocutaneous candidiasis. Interleukin 12 receptor beta1 (IL-12Rbeta1) deficiency is the most common disease of Mendelian susceptibility to mycobacterial disease, and to date only 50 IL-12Rbeta1 deficient patients with clinical signs of chronic mucocutaneous candidiasis have been reported. We report a 2.5-year-old daughter of consanguineous parents with both regional bacille Calmette-Guerin lymphadenitis and recurrent oral candidiasis carrying biallelic R175W mutation in the IL12RB1 gene, resulting in complete loss of expression of IL-12Rbeta1. To our knowledge, this is the first report of bacille Calmette-Guerin lymphadenitis with concurrent oral candidiasis displaying such a mutation. New mutations and wide clinical diversities are the indisputable fact of populations with a high rate of consanguineous marriages. PMID- 29025967 TI - Diminazene Is a Slow Pore Blocker of Acid-Sensing Ion Channel 1a (ASIC1a). AB - Acid-sensing ion channels (ASICs) are neuronal receptors for extracellular protons. They contribute to the excitatory postsynaptic current and to the detection of painful acidosis. Moreover, they are activated during peripheral inflammation and acidosis associated with various neuronal disorders, such as stroke and neuroinflammation, rendering them interesting drug targets. Diminazene aceturate is a small-molecule inhibitor of ASICs with a reported apparent affinity in the low micromolar range, making it an interesting lead compound. It was reported that diminazene accelerates desensitization of ASICs, which was, however, not explained mechanistically. Furthermore, a binding site in a groove of the extracellular domain was proposed but not experimentally verified. In this study, we revisited the mechanism of inhibition by diminazene and its binding site on ASIC1a, the ASIC subunit with the greatest importance in the central nervous system. We show that diminazene slowly blocks ASIC1a, leading to the apparent acceleration of desensitization and underestimating its potency; we show that diminazene indeed has a submicromolar potency at ASIC1a (IC50 0.3 MUM). Moreover, we show that the inhibition is voltage-dependent and competes with that by amiloride, a pore blocker of ASICs. Finally, we identify by molecular docking a binding site in the ion pore that we confirm by site-directed mutagenesis. In summary, our results show that diminazene blocks ASIC1a by a slow open-channel block and suggest that diminazene is an interesting lead compound for high affinity blockers of ASICs. PMID- 29025968 TI - Activation of AMPK/mTORC1-Mediated Autophagy by Metformin Reverses Clk1 Deficiency-Sensitized Dopaminergic Neuronal Death. AB - The autophagy-lysosome pathway (ALP) plays a critical role in the pathology of Parkinson's disease (PD). Clk1 (coq7) is a mitochondrial hydroxylase that is essential for coenzyme Q (ubiquinone) biosynthesis. We have reported previously that Clk1 regulates microglia activation via modulating microglia metabolic reprogramming, which contributes to dopaminergic neuronal survival. This study explores the direct effect of Clk1 on dopaminergic neuronal survival. We demonstrate that Clk1 deficiency inhibited dopaminergic neuronal autophagy in cultured MN9D dopaminergic neurons and in the substantia nigra pars compacta of Clk+/- mutant mice and consequently sensitized dopaminergic neuron damage and behavioral defects. These mechanistic studies indicate that Clk1 regulates the AMP-activated protein kinase (AMPK)/rapamycin complex 1 pathway, which in turn impairs the ALP and TFEB nuclear translocation. As a result, Clk1 deficiency promotes dopaminergic neuronal damage in vivo and in vitro, which ultimately contributes to sensitizing 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) induced dopaminergic neuronal death and behavioral impairments in Clk1-deficient mice. Moreover, we found that activation of autophagy by the AMPK activator metformin increases dopaminergic neuronal survival in vitro and in the MPTP induced PD model in Clk1 mutant mice. These results reveal that Clk1 plays a direct role in dopaminergic neuronal survival via regulating ALPs that may contribute to the pathologic development of PD. Modulation of Clk1 activity may represent a potential therapeutic target for PD. PMID- 29025971 TI - Role of connexin 43 in different forms of intercellular communication - gap junctions, extracellular vesicles and tunnelling nanotubes. AB - Communication is important to ensure the correct and efficient flow of information, which is required to sustain active social networks. A fine-tuned communication between cells is vital to maintain the homeostasis and function of multicellular or unicellular organisms in a community environment. Although there are different levels of complexity, intercellular communication, in prokaryotes to mammalians, can occur through secreted molecules (either soluble or encapsulated in vesicles), tubular structures connecting close cells or intercellular channels that link the cytoplasm of adjacent cells. In mammals, these different types of communication serve different purposes, may involve distinct factors and are mediated by extracellular vesicles, tunnelling nanotubes or gap junctions. Recent studies have shown that connexin 43 (Cx43, also known as GJA1), a transmembrane protein initially described as a gap junction protein, participates in all these forms of communication; this emphasizes the concept of adopting strategies to maximize the potential of available resources by reutilizing the same factor in different scenarios. In this Review, we provide an overview of the most recent advances regarding the role of Cx43 in intercellular communication mediated by extracellular vesicles, tunnelling nanotubes and gap junctions. PMID- 29025972 TI - 30 years on from the molecular cloning of interferon-tau. PMID- 29025969 TI - A versatile optical tool for studying synaptic GABAA receptor trafficking. AB - Live-cell imaging methods can provide critical real-time receptor trafficking measurements. Here, we describe an optical tool to study synaptic gamma aminobutyric acid (GABA) type A receptor (GABAAR) dynamics through adaptable fluorescent-tracking capabilities. A fluorogen-activating peptide (FAP) was genetically inserted into a GABAAR gamma2 subunit tagged with pH-sensitive green fluorescent protein (gamma2pHFAP). The FAP selectively binds and activates Malachite Green (MG) dyes that are otherwise non-fluorescent in solution. gamma2pHFAP GABAARs are expressed at the cell surface in transfected cortical neurons, form synaptic clusters and do not perturb neuronal development. Electrophysiological studies show gamma2pHFAP GABAARs respond to GABA and exhibit positive modulation upon stimulation with the benzodiazepine diazepam. Imaging studies using gamma2pHFAP-transfected neurons and MG dyes show time-dependent receptor accumulation into intracellular vesicles, revealing constitutive endosomal and lysosomal trafficking. Simultaneous analysis of synaptic, surface and lysosomal receptors using the gamma2pHFAP-MG dye approach reveals enhanced GABAAR turnover following a bicucculine-induced seizure paradigm, a finding not detected by standard surface receptor measurements. To our knowledge, this is the first application of the FAP-MG dye system in neurons, demonstrating the versatility to study nearly all phases of GABAAR trafficking. PMID- 29025970 TI - The Arf GEF GBF1 and Arf4 synergize with the sensory receptor cargo, rhodopsin, to regulate ciliary membrane trafficking. AB - The small GTPase Arf4 and the Arf GTPase-activating protein (GAP) ASAP1 cooperatively sequester sensory receptor cargo into transport carriers targeted to primary cilia, but the input that drives Arf4 activation in this process remains unknown. Here, we show, by using frog retinas and recombinant human proteins, that during the carrier biogenesis from the photoreceptor Golgi/trans Golgi network (TGN) a functional complex is formed between Arf4, the Arf guanine nucleotide exchange factor (GEF) GBF1 and the light-sensing receptor, rhodopsin. Rhodopsin and Arf4 bind the regulatory N-terminal dimerization and cyclophillin binding (DCB)-homology upstream of Sec7 (HUS) domain of GBF1. The complex is sensitive to Golgicide A (GCA), a selective inhibitor of GBF1 that accordingly blocks rhodopsin delivery to the cilia, without disrupting the photoreceptor Golgi. The emergence of newly synthesized rhodopsin in the endomembrane system is essential for GBF1-Arf4 complex formation in vivo Notably, GBF1 interacts with the Arf GAP ASAP1 in a GCA-resistant manner. Our findings indicate that converging signals on GBF1 from the influx of cargo into the Golgi/TGN and the feedback from Arf4, combined with input from ASAP1, control Arf4 activation during sensory membrane trafficking to primary cilia. PMID- 29025974 TI - Lipid-based DNA/siRNA transfection agents disrupt neuronal bioenergetics and mitophagy. AB - A multitude of natural and artificial compounds have been recognized to modulate autophagy, providing direct or, through associated pathways, indirect entry points to activation and inhibition. While these pharmacological tools are extremely useful in the study of autophagy, their abundance also suggests the potential presence of unidentified autophagic modulators that may interfere with experimental designs if applied unknowingly. Here, we report unanticipated effects on autophagy and bioenergetics in neuronal progenitor cells (NPCs) incubated with the widely used lipid-based transfection reagent lipofectamine (LF), which induced mitochondria depolarization followed by disruption of electron transport. When NPCs were exposed to LF for 5 h followed by 24, 48, and 72 h in LF-free media, an immediate increase in mitochondrial ROS production and nitrotyrosine formation was observed. These events were accompanied by disrupted mitophagy (accumulation of dysfunctional and damaged mitochondria, and of LC3II and p62), in an mTOR- and AMPK-independent manner, and despite the increased mitochondrial PINK1 (PTEN-inducible kinase 1) localization. Evidence supported a role for a p53-mediated abrogation of parkin translocation and/or abrogation of membrane fusion between autophagosome and lysosomes. While most of the outcomes were LF-specific, only two were shared by OptiMEM exposure (with no serum and reduced glucose levels) albeit at lower extents. Taken together, our findings show that the use of transfection reagents requires critical evaluation with respect to consequences for overall cellular health, particularly in experiments designed to address autophagy-inducing effects and/or energy stress. PMID- 29025973 TI - Dynamic multi-site phosphorylation by Fyn and Abl drives the interaction between CRKL and the novel scaffolding receptors DCBLD1 and DCBLD2. AB - Discoidin, CUB, and LCCL domain containing 2 (DCBLD2) is a neuropilin-like transmembrane scaffolding receptor with known and anticipated roles in vascular remodeling and neuronal positioning. DCBLD2 is also up-regulated in several cancers and can drive glioblastomas downstream of activated epidermal growth factor receptor. While a few studies have shown either a positive or negative role for DCBLD2 in regulating growth factor receptor signaling, little is known about the conserved signaling features of DCBLD family members that drive their molecular activities. We previously identified DCBLD2 tyrosine phosphorylation sites in intracellular YxxP motifs that are required for the phosphorylation dependent binding of the signaling adaptors CRK and CRKL (CT10 regulator of kinase and CRK-like). These intracellular YxxP motifs are highly conserved across vertebrates and between DCBLD family members. Here, we demonstrate that, as for DCBLD2, DCBLD1 YxxP motifs are required for CRKL-SH2 (Src homology 2) binding. We report that Src family kinases (SFKs) and Abl differentially promote the interaction between the CRKL-SH2 domain and DCBLD1 and DCBLD2, and while SFKs and Abl each promote DCBLD1 and DCBLD2 binding to the CRKL-SH2 domain, the effect of Abl is more pronounced for DCBLD1. Using high-performance liquid chromatography coupled with tandem mass spectrometry, we quantified phosphorylation at several YxxP sites in DCBLD1 and DCBLD2, mapping site-specific preferences for SFKs and Abl. Together, these data provide a platform to decipher the signaling mechanisms by which these novel receptors drive their biological activities. PMID- 29025975 TI - Recognition of hyperacetylated N-terminus of H2AZ by TbBDF2 from Trypanosoma brucei. AB - Histone modification plays an important role in various biological processes, including gene expression regulation. Bromodomain, as one of histone readers, recognizes specifically the epsilon-N-lysine acetylation (KAc) of histone. Although the bromodomains and histone acetylation sites of Trypanosoma brucei (T. brucei), a lethal parasite responsible for sleeping sickness in human and nagana in cattle, have been identified, how acetylated histones are recognized by bromodomains is still unknown. Here, the bromodomain factor 2 (TbBDF2) from T. brucei was identified to be located in the nucleolus and bind to the hyperacetylated N-terminus of H2AZ which dimerizes with H2BV. The bromodomain of TbBDF2 (TbBDF2-BD) displays a conserved fold that comprises a left-handed bundle of four alpha-helices (alphaZ, alphaA, alphaB, alphaC), linked by loop regions of variable length (ZA and BC loops), which form the KAc-binding pocket. NMR chemical shift perturbation further revealed that TbBDF2-BD binds to the hyperacetylated N-terminus of H2AZ through its KAc-binding pocket. By structure based virtual screening combining with the ITC experiment, a small molecule compound, GSK2801, was shown to have high affinity to TbBDF2-BD. GSK2801 and the hyperacetylated N-terminus of H2AZ have similar binding sites on TbBDF2-BD. In addition, GSK2801 competitively inhibits the hyperacetylated N-terminus of H2AZ binding to TbBDF2-BD. After treatment of GSK2801, cell growth was inhibited and localization of TbBDF2 was disrupted. Our results report a novel bromodomain histone recognition by TbBDF2-BD and imply that TbBDF2 may serve as a potential chemotherapeutic target for the treatment of trypanosomiasis. PMID- 29025977 TI - An Approach to Discovering Novel Muscarinic M1 Receptor Positive Allosteric Modulators with Potent Cognitive Improvement and Minimized Gastrointestinal Dysfunction. AB - Activation of muscarinic M1 receptor (M1R) is a promising approach for improving cognitive impairment in Alzheimer's disease. However, an M1R-selective positive allosteric modulator (PAM), benzyl quinolone carboxylic acid (BQCA), at 30 mg/kg, induced diarrhea in wild-type mice, but not in M1R knockout mice. Moreover, BQCA (0.1-1000 nM) augmented electric field stimulation (EFS)-induced ileum contraction in an in vitro Magnus assay. Thus, we decided to establish a drug screening strategy to discover novel M1 PAMs producing potent cognitive improvement with minimized gastrointestinal (GI) dysfunction. We assessed PAM parameters of various M1 PAMs with >=100-fold selectivity over other muscarinic receptor subtypes by using in vitro binding and functional analysis. Evaluation of these M1 PAMs in the Magnus assay revealed a significant correlation between percentage of ileum contractions at 1 MUM and their alpha-value, a PAM parameter associated with the binding cooperativity between acetylcholine and M1 PAM. M1 PAMs with lower alpha-value showed lower impact on EFS-induced ileum contraction. Next, we characterized in vivo profiles of two M1 PAMs: compound A (log alpha = 1.18) and compound B (log alpha = 3.30). Compound A, at 30 mg/kg, significantly improved scopolamine-induced cognitive deficits without prominent signs of diarrhea at up to 1000 mg/kg in mice. In contrast, compound B, at 10 mg/kg, showed both significant improvement of scopolamine-induced cognitive deficits and severe diarrhea. Thus, fine adjustment of the alpha-values could be a key to discovering M1 PAMs yielding potent cognitive improvement with a lower risk of GI effects. PMID- 29025976 TI - OleA Glu117 is key to condensation of two fatty-acyl coenzyme A substrates in long-chain olefin biosynthesis. AB - In the interest of decreasing dependence on fossil fuels, microbial hydrocarbon biosynthesis pathways are being studied for renewable, tailored production of specialty chemicals and biofuels. One candidate is long-chain olefin biosynthesis, a widespread bacterial pathway that produces waxy hydrocarbons. Found in three- and four-gene clusters, oleABCD encodes the enzymes necessary to produce cis-olefins that differ by alkyl chain length, degree of unsaturation, and alkyl chain branching. The first enzyme in the pathway, OleA, catalyzes the Claisen condensation of two fatty acyl-coenzyme A (CoA) molecules to form a beta keto acid. In this report, the mechanistic role of Xanthomonas campestris OleA Glu117 is investigated through mutant enzymes. Crystal structures were determined for each mutant as well as their complex with the inhibitor cerulenin. Complemented by substrate modeling, these structures suggest that Glu117 aids in substrate positioning for productive carbon-carbon bond formation. Analysis of acyl-CoA substrate hydrolysis shows diminished activity in all mutants. When the active site lacks an acidic residue in the 117 position, OleA cannot form condensed product, demonstrating that Glu117 has a critical role upstream of the essential condensation reaction. Profiling of pH dependence shows that the apparent pKa for Glu117 is affected by mutagenesis. Taken together, we propose that Glu117 is the general base needed to prime condensation via deprotonation of the second, non-covalently bound substrate during turnover. This is the first example of a member of the thiolase superfamily of condensing enzymes to contain an active site base originating from the second monomer of the dimer. PMID- 29025980 TI - Appropriate Use Criteria for 18F-FDG PET/CT in Restaging and Treatment Response Assessment of Malignant Disease. PMID- 29025978 TI - The Anti-Vascular Endothelial Growth Factor Receptor-1 Monoclonal Antibody D16F7 Inhibits Glioma Growth and Angiogenesis In Vivo. AB - The vascular endothelial growth factor (VEGF) receptor-1 (VEGFR-1) is a tyrosine kinase receptor that does not play a relevant role in physiologic angiogenesis in adults, whereas it is important in tumor angiogenesis. In high-grade glioma VEGFR 1 expression by tumor endothelium and neoplastic cells contributes to the aggressive phenotype. We recently generated an anti-VEGFR-1 monoclonal antibody (D16F7 mAb) characterized by a novel mechanism of action, since it hampers receptor activation without interfering with ligand binding. The mAb is able to inhibit chemotaxis and extracellular matrix invasion of glioma cells in vitro stimulated by VEGF-A and by the VEGFR-1-selective ligand placental growth factor (PlGF). In this study, we have investigated the influence of D16F7 on glioma growth and angiogenesis in vivo using C6 glioma cells transfected with the human VEGFR-1. D16F7 was able to inhibit receptor activation and migration and extracellular matrix invasion of C6 cells overexpressing the receptor in response to PlGF and VEGF-A. In nude mice, treatment with 10 and 20 mg/kg D16F7 as a single agent was well tolerated and significantly inhibited glioma growth (P < 0.001). Strikingly, in an intracranial orthotopic model, mice dosed with 20 mg/kg D16F7 demonstrated a 65% increase in median survival time compared with vehicle treated controls (P < 0.001) with a high percentage of long-term survivors (46%). These effects were associated with glioma cell apoptosis and decreased tumor associated vessel formation. Overall, these results highlight the therapeutic potential of D16F7 in glioma treatment, deserving further investigation after a humanization process as single agent or in combination therapies. PMID- 29025979 TI - Melatonin Receptor Agonist Piromelatine Ameliorates Impaired Glucose Metabolism in Chronically Stressed Rats Fed a High-Fat Diet. AB - Modern lifestyle factors (high-caloric food rich in fat) and daily chronic stress are important risk factors for metabolic disturbances. Increased hypothalamic pituitary-adrenal (HPA) axis activity and the subsequent excess production of glucocorticoids (GCs) in response to chronic stress (CS) leads to increases in metabolic complications, such as type 2 diabetes and insulin resistance (IR). Melatonin (MLT), which protects several regulatory components of the HPA axis from GC-induced deterioration, might improve glucose homeostasis. Piromelatine is a melatonin receptor-1/melatonin receptor-2 (MT1/MT2) agonist with high affinity for MLT receptors and a longer duration of action than MLT. The objective of the present study was to explore the potential effects of piromelatine on glucose and lipid metabolism and insulin sensitivity in rats with IR induced by a high-fat diet combined with CS (CF). The results showed that piromelatine prevented the suppression of body weight gain and energy intake induced by CF and normalized CF induced hyperglycemia and homeostasis model assessment-IR index, which suggests that piromelatine prevented whole-body IR. Piromelatine also prevented CF-induced dysregulation of genes involved in glucose and lipid metabolism, including proinflammatory cytokines, in adipose tissue. In addition, piromelatine also attenuated CF-induced excess free corticosterone release, increased glucocorticoid receptor expression, and decreased 11beta-hydroxysteroid dehydrogenase-1 expression, suggesting that piromelatine might ameliorate impaired glucose metabolism and prevent IR by normalizing HPA-axis functions. In conclusion, piromelatine might be a novel therapeutic agent for glucose intolerance and IR. PMID- 29025981 TI - How Should the FDA Review Diagnostic Radiopharmaceuticals? AB - The purpose of this article is to reconsider the manner in which the U.S. Food and Drug Administration (FDA) reviews diagnostic radiopharmaceuticals. Mass characteristics of several common nonradioactive drugs and several diagnostic radiopharmaceuticals are considered. A history of the regulation of radiopharmaceuticals is presented. The Society of Nuclear Medicine and Molecular Imaging and the American College of Nuclear Medicine should choose the membership of a radiopharmaceutical advisory committee, and the FDA should contract with them to do so. Members of the radiopharmaceutical advisory committee should decide on the data to be presented by the manufacturer or the compounder and review those data, and the FDA should honor their decision. In this way, requirements would be radiopharmaceutical-specific, and much information of questionable usefulness would be foregone. PMID- 29025982 TI - Appropriate Use Criteria for Somatostatin Receptor PET Imaging in Neuroendocrine Tumors. PMID- 29025983 TI - Predictive Value of 18F-FDG PET in Patients with Advanced Medullary Thyroid Carcinoma Treated with Vandetanib. AB - Therapeutic options in advanced medullary thyroid carcinoma (MTC) have markedly improved since the introduction of tyrosine kinase inhibitors (TKIs). We aimed to assess the role of metabolic imaging using 18F-FDG PET/CT shortly before and 3 mo after initiation of TKI treatment. Methods: Eighteen patients with advanced and progressive MTC scheduled for vandetanib treatment underwent baseline 18F-FDG PET/CT before and 3 mo after TKI treatment initiation. During follow-up, CT scans were obtained every 3 mo and analyzed according to RECIST. The predictive value for estimating progression-free survival (PFS) and overall survival (OS) was examined by investigating the 18F-FDG SUVmean/max of the metabolically most active lesion, as well as by analyzing clinical parameters (tumor marker doubling times [calcitonin, carcinoembryonic antigen], prior therapies, rearranged-during transfection mutational status, and disease type). Results: Within a median follow-up of 5.2 y, 9 patients experienced disease progression after a median interval of 2.1 y, whereas the remainder had ongoing disease control (5 with a partial response and 4 with stable disease). Eight of the 9 patients with progressive disease died from MTC after a median of 3.5 y after TKI initiation. A pretherapeutic SUVmean of more than 4.0 predicted a significantly shorter PFS (1.9 y vs. 5.2 y, P = 0.04). Furthermore, sustained high 18F-FDG uptake at 3 mo with a SUVmean of more than 2.8 tended to portend an unfavorable prognosis, with a PFS of 1.9 y (vs. 3.5 y, P = 0.3). Prolonged carcinoembryonic antigen doubling times were significantly correlated with longer PFS (r = 0.7) and OS (r = 0.76, P < 0.01). None of the other clinical parameters had prognostic significance. Conclusion: Pretherapeutic 18F-FDG PET/CT provides prognostic information in patients with advanced MTC scheduled for treatment with the TKI vandetanib. A low tumor metabolism with an SUVmean of less than 4.0 before treatment predicts a longer PFS. PMID- 29025984 TI - Synthesis and Biologic Evaluation of a Novel 18F-Labeled Adnectin as a PET Radioligand for Imaging PD-L1 Expression. AB - The programmed death protein (PD-1) and its ligand (PD-L1) play critical roles in a checkpoint pathway cancer cells exploit to evade the immune system. A same-day PET imaging agent for measuring PD-L1 status in primary and metastatic lesions could be important for optimizing drug therapy. Herein, we have evaluated the tumor targeting of an anti-PD-L1 adnectin after 18F-fluorine labeling. Methods: An anti-PD-L1 adnectin was labeled with 18F in 2 steps. This synthesis featured fluorination of a novel prosthetic group, followed by a copper-free click conjugation to a modified adnectin to generate 18F-BMS-986192. 18F-BMS-986192 was evaluated in tumors using in vitro autoradiography and PET with mice bearing bilateral PD-L1-negative (PD-L1(-)) and PD-L1-positive (PD-L1(+)) subcutaneous tumors. 18F-BMS-986192 was evaluated for distribution, binding, and radiation dosimetry in a healthy cynomolgus monkey. Results:18F-BMS-986192 bound to human and cynomolgus PD-L1 with a dissociation constant of less than 35 pM, as measured by surface plasmon resonance. This adnectin was labeled with 18F to yield a PET radioligand for assessing PD-L1 expression in vivo. 18F-BMS-986192 bound to tumor tissues as a function of PD-L1 expression determined by immunohistochemistry. Radioligand binding was blocked in a dose-dependent manner. In vivo PET imaging clearly visualized PD-L1 expression in mice implanted with PD-L1(+), L2987 xenograft tumors. Two hours after dosing, a 3.5-fold-higher uptake (2.41 +/- 0.29 vs. 0.82 +/- 0.11 percentage injected dose per gram, P < 0.0001) was observed in L2987 than in control HT-29 (PD-L1(-)) tumors. Coadministration of 3 mg/kg ADX_5322_A02 anti-PD-L1 adnectin reduced tumor uptake at 2 h after injection by approximately 70%, whereas HT-29 uptake remained unchanged, demonstrating PD-L1 specific binding. Biodistribution in a nonhuman primate showed binding in the PD L1-rich spleen, with rapid blood clearance through the kidneys and bladder. Binding in the PD-L1(+) spleen was reduced by coadministration of BMS-986192. Dosimetry estimates indicate that the kidney is the dose-limiting organ, with an estimated human absorbed dose of 2.20E-01 mSv/MBq. Conclusion:18F-BMS-986192 demonstrated the feasibility of noninvasively imaging the PD-L1 status of tumors by small-animal PET studies. Clinical studies with 18F-BMS-986192 are under way to measure PD-L1 expression in human tumors. PMID- 29025986 TI - 18F-FDG-Avid Thyroid Incidentalomas: The Importance of Contextual Interpretation. AB - 18F-FDG-avid thyroid incidentaloma (TI) is seen in approximately 2.5% of patients imaged for staging or response assessment of malignancy and represents thyroid cancer in approximately 35% of cases. Consequently, the 2015 American Thyroid Association guidelines strongly recommend investigation of all 18F-FDG-avid nodules 1 cm or larger with ultrasound and fine-needle aspiration cytology (FNA). This study aimed to assess the overall and thyroid cancer-specific survival in a large cohort of patients with 18F-FDG-avid TI with long-term follow-up to assess the validity of this approach. Methods: Retrospective review of 45,680 PET/CT scans performed at a comprehensive cancer center from January 2007 to January 2015 identified 2,588 18F-FDG PET/CT reports referring to the thyroid. After exclusion of nonavid thyroid nodules, diffuse 18F-FDG uptake, known thyroid cancer, abnormalities adjacent to the thyroid, and repeat studies, 500 patients (1.1%) with TI were identified, of whom 362 had confirmed death or more than 12 mo of clinical follow-up. Variables including age, sex, primary malignancy, overall survival, thyroid cancer-specific survival, FNA, and histopathology were collected until January 2016. Multivariate logistic regression and survival analysis were performed. Results: The 362 analyzed patients (65% female) had a median age of 65 y (range, 19-96 y) and follow-up of 24 mo (range, 1-103 mo). Lymphoid, lung, and colorectal malignancy were the most common staging indications. Median overall survival was 20 mo (interquartile range, 9.5-39 mo). Most of the 180 observed deaths were due to the primary malignancy under investigation (92.2%) or to causes not related to cancer (7.2%); one patient (0.6%) died from incidentally detected medullary thyroid cancer. 18F-FDG avidity in the index malignancy, an advanced stage for that malignancy, and a clinician decision not to investigate 18F-FDG-avid TI were all predictors of mortality, with hazard ratios of 8.5, 3.0, and 3.3, respectively, and 95% confidence intervals of 4.6-15.8, 2.3-3.9, and 2.0-5.0, respectively (P < 0.001). Of 131 patients suitable for cytologic or histopathologic evaluation, 47 (36%) had incidental thyroid cancer (24 papillary, 11 malignant FNA, 5 oncocytic/Hurthle cell, 2 medullary, 1 follicular, and 4 metastases from underlying malignancy). Conclusion: Overall survival with 18F-FDG-avid TI was poor because of the prognosis associated with underlying malignancy, which must be considered before investigation of 18F-FDG-avid TI and certainly before aggressive treatment. Active surveillance should be considered in this group of patients. PMID- 29025985 TI - Safety, Biodistribution, and Radiation Dosimetry of 68Ga-OPS202 in Patients with Gastroenteropancreatic Neuroendocrine Tumors: A Prospective Phase I Imaging Study. AB - Preclinical and preliminary clinical evidence indicates that radiolabeled somatostatin (sst) receptor antagonists perform better than agonists in detecting neuroendocrine tumors (NETs). We performed a prospective phase I/II study to evaluate the sst receptor antagonist 68Ga-OPS202 (68Ga-NODAGA-JR11; NODAGA = 1,4,7-triazacyclononane,1-glutaric acid-4,7-acetic acid and JR11 = Cpa-c(dCys Aph(Hor)-dAph(Cbm)-Lys-Thr-Cys)-dTyr-NH2)) for PET imaging. Here, we report the results of phase I of the study. Methods: Patients received 2 single 150-MBq intravenous injections of 68Ga-OPS202 3-4 wk apart (15 MUg of peptide at visit 1 and 50 MUg at visit 2). At visit 1, a dynamic PET/CT scan over the kidney was obtained during the first 30 min after injection, and static whole-body scans were obtained at 0.5, 1, 2, and 4 h after injection; at visit 2, a static whole body scan was obtained at 1 h. Blood samples and urine were collected at regular intervals to determine 68Ga-OPS202 pharmacokinetics. Safety, biodistribution, radiation dosimetry, and the most appropriate imaging time point for 68Ga-OPS202 were assessed. Results: Twelve patients with well-differentiated gastroenteropancreatic (GEP) NETs took part in the study. 68Ga-OPS202 cleared rapidly from the blood, with a mean residence time of 2.4 +/- 1.1 min/L. The organs with the highest mean dose coefficients were the urinary bladder wall, kidneys, and spleen. The calculated effective dose was 2.4E-02 +/- 0.2E-02 mSv/MBq, corresponding to 3.6 mSv, for a reference activity of 150 MBq. Based on total numbers of detected malignant lesions, the optimal time window for the scan was between 1 and 2 h. For malignant liver lesions, the time point at which most patients had the highest mean tumor contrast was 1 h. 68Ga-OPS202 was well tolerated; adverse events were grade 1 or 2, and there were no signals of concern from laboratory blood or urinalysis tests. Conclusion:68Ga-OPS202 showed favorable biodistribution and imaging properties, with optimal tumor contrast between 1 and 2 h after injection. Dosimetry analysis revealed that the dose delivered by 68Ga-OPS202 to organs is similar to that delivered by other 68Ga labeled sst analogs. Further evaluation of 68Ga-OPS202 for PET/CT imaging of NETs is therefore warranted. PMID- 29025988 TI - Advanced Methods for Radiolabeling Multimodality Nanomedicines for SPECT/MRI and PET/MRI. AB - The advent of hybrid cameras that combine MRI with either SPECT or PET has stimulated growing interest in developing multimodality imaging probes. Countless options are available for fusing magnetically active species with positron- or gamma-ray-emitting radionuclides. The initial problem is one of choice: which chemical systems are a suitable basis for developing hybrid imaging agents? Any attempt to answer this question must also address how the physical, chemical, and biologic properties of a unified imaging agent can be tailored to ensure that optimum specificity and contrast are achieved simultaneously for both imaging modalities. Nanoparticles have emerged as attractive platforms for building multimodality radiotracers for SPECT/MRI and PET/MRI. A wide variety of nanoparticle constructs have been utilized as radiotracers, but irrespective of the particle class, radiolabeling remains a key step. Classic methods for radiolabeling nanoparticles involve functionalization of the particle surface, core, or coating. These modifications typically rely on using traditional metal ion chelate or prosthetic group chemistries. Though seemingly innocuous, appending nanoparticles with these radiolabeling handles can have dramatic effects on important properties such as particle size, charge, and solubility. In turn, alterations in the chemical and physical properties of the nanoparticle often have a negative impact on their pharmacologic profile. A central challenge in radiolabeling nanoparticles is to identify alternative chemical methods that facilitate the introduction of a radioactive nuclide without detrimental effects on the pharmacokinetic and toxicologic properties of the construct. Efforts to solve this challenge have generated a range of innovative chelate-free radiolabeling methods that exploit intrinsic chemical features of nanoparticles. Here, the chemistry of 9 mechanistically distinct methods for radiolabeling nanoparticles is presented. This discourse illustrates the evolution of nanoparticle radiochemistry from classic approaches to modern chelate-free or intrinsic methods. PMID- 29025987 TI - Preclinical Development of CD38-Targeted [89Zr]Zr-DFO-Daratumumab for Imaging Multiple Myeloma. AB - Multiple myeloma (MM) is a plasma B-cell hematologic cancer that causes significant skeletal morbidity. Despite improvements in survival, heterogeneity in response remains a major challenge in MM. Cluster of differentiation 38 (CD38) is a type II transmembrane glycoprotein overexpressed in myeloma cells and is implicated in MM cell signaling. Daratumumab is a U.S. Food and Drug Administration-approved high-affinity monoclonal antibody targeting CD38 that is clinically benefiting refractory MM patients. Here, we evaluated [89Zr]Zr desferrioxamine (DFO)-daratumumab PET/CT imaging in MM tumor models. Methods: Daratumumab was conjugated to DFO-p-benzyl-isothiocyanate (DFO-Bz-NCS) for radiolabeling with 89Zr. Chelator conjugation was confirmed by electrospray ionization-mass spectrometry, and radiolabeling was monitored by instant thin layer chromatography. Daratumumab was conjugated to Cyanine5 (Cy5) dye for cell microscopy. In vitro and in vivo evaluation of [89Zr]Zr-DFO-daratumumab was performed using CD38+ human myeloma MM1.S-luciferase (MM1.S) cells. Cellular studies determined the affinity, immunoreactivity, and specificity of [89Zr]Zr DFO-daratumumab. A 5TGM1-luciferase (5TGM1)/KaLwRij MM mouse model served as control for imaging background noise. [89Zr]Zr-DFO-daratumumab PET/CT small animal imaging was performed in severe combined immunodeficient mice bearing solid and disseminated MM tumors. Tissue biodistribution (7 d after tracer administration, 1.11 MBq/animal, n = 4-6/group) was performed in wild-type and MM1.S tumor-bearing mice. Results: A specific activity of 55.5 MBq/nmol (0.37 MBq/MUg) was reproducibly obtained with [89Zr]Zr-daratumumab-DFO. Flow cytometry confirmed CD38 expression (>99%) on the surface of MM1.S cells. Confocal microscopy with daratumumab-Cy5 demonstrated specific cell binding. Dissociation constant, 3.3 nM (+/-0.58), and receptor density, 10.1 fmol/mg (+/-0.64), was obtained with a saturation binding assay. [89Zr]Zr-DFO-daratumumab/PET demonstrated specificity and sensitivity for detecting CD38+ myeloma tumors of variable sizes (8.5-128 mm3) with standardized uptake values ranging from 2.1 to 9.3. Discrete medullar lesions, confirmed by bioluminescence images, were efficiently imaged with [89Zr]Zr-DFO-daratumumab/PET. Biodistribution at 7 d after administration of [89Zr]Zr-DFO-daratumumab showed prominent tumor uptake (27.7 +/- 7.6 percentage injected dose per gram). In vivo blocking was achieved with a 200-fold excess of unlabeled daratumumab. Conclusion: [89Zr]Zr-DFO- and Cy5-daratumumab demonstrated superb binding to CD38+ human MM cells and significantly low binding to CD38low cells. Daratumumab bioconjugates are being evaluated for image-guided delivery of therapeutic radionuclides. PMID- 29025989 TI - Low-Level Endogenous PSMA Expression in Nonprostatic Tumor Xenografts Is Sufficient for In Vivo Tumor Targeting and Imaging. AB - Prostate-specific membrane antigen (PSMA) is highly expressed in prostate cancer and within the neovasculature of other solid tumors. The nonprostatic expression of PSMA has been reported exclusively within the neovasculature endothelial cells of nonprostatic cancers; however, there are few reports on PSMA expression in epithelial cells. Herein, we describe PSMA expression in nonprostatic epithelial cells and characterize the potential of PSMA-binding agents to noninvasively detect that expression. Methods: PSMA expression data were extracted from publicly available genomic databases. Genomic data were experimentally validated for PSMA expression-by quantitative reverse transcription polymerase chain reaction, flow cytometry, and Western blotting-in several nonprostatic cell lines and xenografts of melanoma and small cell lung cancer (SCLC) origin. The feasibility of PSMA detection in those tumor models was further established using PSMA-based nuclear and optical imaging agents and by biodistribution, blocking, and ex vivo molecular characterization studies. Results: We discovered that a small percentage of nonprostatic cancer cell lines and tumors express PSMA. Importantly, PSMA expression was sufficiently high to image established melanoma and SCLC xenografts using PSMA-based nuclear and optical imaging agents. Conclusion: These results indicate that PSMA expression in nonprostatic tumors may not be limited to the endothelium but may also include solid tumor tissue of nonprostatic cancers including melanoma and SCLC. Our observations indicate broader applicability of PSMA-targeted imaging and therapeutics. PMID- 29025990 TI - 177Lu-3BP-227 for Neurotensin Receptor 1-Targeted Therapy of Metastatic Pancreatic Adenocarcinoma: First Clinical Results. AB - Neurotensin receptor 1 (NTR1) is overexpressed in ductal pancreatic adenocarcinoma, which is still one of the deadliest cancers, with a very poor prognosis. Eligible patients were offered salvage radiopharmaceutical therapy with the novel NTR1 antagonist 177Lu-3BP-227. Methods: Six patients with confirmed ductal pancreatic adenocarcinoma who had exhausted all other treatment options received 177Lu-3BP-227 for evaluation of NTR1 expression in vivo. Three patients received treatment activities of 5.1-7.5 GBq. Results: Administration of 177Lu-3BP-227 was well tolerated by all patients. The kidneys were identified as the dose-limiting organ. The most severe adverse event was reversible grade 2 anemia. One patient achieved a partial response and experienced significant improvement of symptoms and quality of life. This patient survived 13 mo from diagnosis and 11 mo from the start of 177Lu-3BP-227 therapy. Conclusion: This initial report provides clinical evidence of the feasibility of treatment of ductal pancreatic adenocarcinoma using 177Lu-3BP-227. PMID- 29025992 TI - Nonreciprocal lasing in topological cavities of arbitrary geometries. AB - Resonant cavities are essential building blocks governing many wave-based phenomena, but their geometry and reciprocity fundamentally limit the integration of optical devices. We report, at telecommunication wavelengths, geometry independent and integrated nonreciprocal topological cavities that couple stimulated emission from one-way photonic edge states to a selected waveguide output with an isolation ratio in excess of 10 decibels. Nonreciprocity originates from unidirectional edge states at the boundary between photonic structures with distinct topological invariants. Our experimental demonstration of lasing from topological cavities provides the opportunity to develop complex topological circuitry of arbitrary geometries for the integrated and robust generation and transport of photons in classical and quantum regimes. PMID- 29025991 TI - Crystal structure of a TAPBPR-MHC I complex reveals the mechanism of peptide editing in antigen presentation. AB - Central to CD8+ T cell-mediated immunity is the recognition of peptide-major histocompatibility complex class I (p-MHC I) proteins displayed by antigen presenting cells. Chaperone-mediated loading of high-affinity peptides onto MHC I is a key step in the MHC I antigen presentation pathway. However, the structure of MHC I with a chaperone that facilitates peptide loading has not been determined. We report the crystal structure of MHC I in complex with the peptide editor TAPBPR (TAP-binding protein-related), a tapasin homolog. TAPBPR remodels the peptide-binding groove of MHC I, resulting in the release of low-affinity peptide. Changes include groove relaxation, modifications of key binding pockets, and domain adjustments. This structure captures a peptide-receptive state of MHC I and provides insights into the mechanism of peptide editing by TAPBPR and, by analogy, tapasin. PMID- 29025993 TI - A cryofuge for cold-collision experiments with slow polar molecules. AB - Ultracold molecules represent a fascinating research frontier in physics and chemistry, but it has proven challenging to prepare dense samples at low velocities. Here, we present a solution to this goal by means of a nonconventional approach dubbed cryofuge. It uses centrifugal force to bring cryogenically cooled molecules to kinetic energies below 1 K * kB in the laboratory frame, where kB is the Boltzmann constant, with corresponding fluxes exceeding 1010 per second at velocities below 20 meters per second. By attaining densities higher than 109 per cubic centimeter and interaction times longer than 25 milliseconds in samples of fluoromethane as well as deuterated ammonia, we observed cold dipolar collisions between molecules and determined their collision cross sections. PMID- 29025996 TI - Structure of the TAPBPR-MHC I complex defines the mechanism of peptide loading and editing. AB - Adaptive immunity is shaped by a selection of peptides presented on major histocompatibility complex class I (MHC I) molecules. The chaperones Tapasin (Tsn) and TAP-binding protein-related (TAPBPR) facilitate MHC I peptide loading and high-affinity epitope selection. Despite the pivotal role of Tsn and TAPBPR in controlling the hierarchical immune response, their catalytic mechanism remains unknown. Here, we present the x-ray structure of the TAPBPR-MHC I complex, which delineates the central step of catalysis. TAPBPR functions as peptide selector by remodeling the MHC I alpha2-1-helix region, stabilizing the empty binding groove, and inserting a loop into the groove that interferes with peptide binding. The complex explains how mutations in MHC I-specific chaperones cause defects in antigen processing and suggests a unifying mechanism of peptide proofreading. PMID- 29025997 TI - Distinguishing a Majorana zero mode using spin-resolved measurements. AB - One-dimensional topological superconductors host Majorana zero modes (MZMs), the nonlocal property of which could be exploited for quantum computing applications. We use spin-polarized scanning tunneling microscopy to show that MZMs realized in self-assembled Fe chains on the surface of Pb have a spin polarization that exceeds that stemming from the magnetism of these chains. This feature, captured by our model calculations, is a direct consequence of the nonlocality of the Hilbert space of MZMs emerging from a topological band structure. Our study establishes spin-polarization measurements as a diagnostic tool to distinguish topological MZMs from trivial in-gap states of a superconductor. PMID- 29025995 TI - Metabolic recycling of ammonia via glutamate dehydrogenase supports breast cancer biomass. AB - Ammonia is a ubiquitous by-product of cellular metabolism; however, the biological consequences of ammonia production are not fully understood, especially in cancer. We found that ammonia is not merely a toxic waste product but is recycled into central amino acid metabolism to maximize nitrogen utilization. In our experiments, human breast cancer cells primarily assimilated ammonia through reductive amination catalyzed by glutamate dehydrogenase (GDH); secondary reactions enabled other amino acids, such as proline and aspartate, to directly acquire this nitrogen. Metabolic recycling of ammonia accelerated proliferation of breast cancer. In mice, ammonia accumulated in the tumor microenvironment and was used directly to generate amino acids through GDH activity. These data show that ammonia is not only a secreted waste product but also a fundamental nitrogen source that can support tumor biomass. PMID- 29025998 TI - You "Like" Us! PMID- 29026000 TI - Package size matters: tobacco packaging, retail merchandising and its influence on trial and impulse sales. PMID- 29025999 TI - Marijuana as a 'concept' flavour for cigar products: availability and price near California schools. AB - OBJECTIVES: To assess the retail availability of cigar products that refer to marijuana and the largest package size of cigarillos available for <=$1. METHODS: Trained data collectors conducted marketing surveillance in a random sample of licensed tobacco retailers that sold little cigars/cigarillos (LCCs) (n=530) near a statewide sample of middle and high schools (n=132) in California. Multilevel models examined the presence of marijuana co-marketing and cigarillo pack size as a function of school/neighbourhood characteristics and adjusted for store type. RESULTS: Of stores that sold LCCs, approximately 62% contained at least one form of marijuana co-marketing: 53.2% sold cigar wraps marketed as blunt wraps, 27.2% sold cigarillos marketed as blunts and 26.0% sold at least one LCC with a marijuana-related 'concept' flavour. Controlling for store type, marijuana co marketing was more prevalent in school neighbourhoods with a higher proportion of young residents (ages 5-17 years) and with lower median household income. Nearly all stores that sold LCCs (87.9%) offered the products for <=$1. However, significantly larger packs at similarly low prices were available near schools in lower-income neighbourhoods and with a lower percentage of Hispanic students. CONCLUSIONS: Understanding how the tobacco industry manipulates cigar products and marketing to capitalise on the appeal of marijuana to youth and other priority populations is important to inform regulation, particularly for flavoured tobacco products. In addition, the retail availability of five and six packs of LCCs for <=$1 near California schools underscores policy recommendations to establish minimum prices for multipacks. PMID- 29026001 TI - Understanding a role for hypoxia in lesion formation and location in the deep and periventricular white matter in small vessel disease and multiple sclerosis. AB - The deep and periventricular white matter is preferentially affected in several neurological disorders, including cerebral small vessel disease (SVD) and multiple sclerosis (MS), suggesting that common pathogenic mechanisms may be involved in this injury. Here we consider the potential pathogenic role of tissue hypoxia in lesion development, arising partly from the vascular anatomy of the affected white matter. Specifically, these regions are supplied by a sparse vasculature fed by long, narrow end arteries/arterioles that are vulnerable to oxygen desaturation if perfusion is reduced (as in SVD, MS and diabetes) or if the surrounding tissue is hypoxic (as in MS, at least). The oxygen crisis is exacerbated by a local preponderance of veins, as these can become highly desaturated 'sinks' for oxygen that deplete it from surrounding tissues. Additional haemodynamic deficiencies, including sluggish flow and impaired vasomotor reactivity and vessel compliance, further exacerbate oxygen insufficiency. The cells most vulnerable to hypoxic damage, including oligodendrocytes, die first, resulting in demyelination. Indeed, in preclinical models, demyelination is prevented if adequate oxygenation is maintained by raising inspired oxygen concentrations. In agreement with this interpretation, there is a predilection of lesions for the anterior and occipital horns of the lateral ventricles, namely regions located at arterial watersheds, or border zones, known to be especially susceptible to hypoperfusion and hypoxia. Finally, mitochondrial dysfunction due to genetic causes, as occurs in leucodystrophies or due to free radical damage, as occurs in MS, will compound any energy insufficiency resulting from hypoxia. Viewing lesion formation from the standpoint of tissue oxygenation not only reveals that lesion distribution is partly predictable, but may also inform new therapeutic strategies. PMID- 29025994 TI - Loci associated with skin pigmentation identified in African populations. AB - Despite the wide range of skin pigmentation in humans, little is known about its genetic basis in global populations. Examining ethnically diverse African genomes, we identify variants in or near SLC24A5, MFSD12, DDB1, TMEM138, OCA2, and HERC2 that are significantly associated with skin pigmentation. Genetic evidence indicates that the light pigmentation variant at SLC24A5 was introduced into East Africa by gene flow from non-Africans. At all other loci, variants associated with dark pigmentation in Africans are identical by descent in South Asian and Australo-Melanesian populations. Functional analyses indicate that MFSD12 encodes a lysosomal protein that affects melanogenesis in zebrafish and mice, and that mutations in melanocyte-specific regulatory regions near DDB1/TMEM138 correlate with expression of ultraviolet response genes under selection in Eurasians. PMID- 29026002 TI - Risk of bias reporting in the recent animal focal cerebral ischaemia literature. AB - BACKGROUND: Findings from in vivo research may be less reliable where studies do not report measures to reduce risks of bias. The experimental stroke community has been at the forefront of implementing changes to improve reporting, but it is not known whether these efforts are associated with continuous improvements. Our aims here were firstly to validate an automated tool to assess risks of bias in published works, and secondly to assess the reporting of measures taken to reduce the risk of bias within recent literature for two experimental models of stroke. METHODS: We developed and used text analytic approaches to automatically ascertain reporting of measures to reduce risk of bias from full-text articles describing animal experiments inducing middle cerebral artery occlusion (MCAO) or modelling lacunar stroke. RESULTS: Compared with previous assessments, there were improvements in the reporting of measures taken to reduce risks of bias in the MCAO literature but not in the lacunar stroke literature. Accuracy of automated annotation of risk of bias in the MCAO literature was 86% (randomization), 94% (blinding) and 100% (sample size calculation); and in the lacunar stroke literature accuracy was 67% (randomization), 91% (blinding) and 96% (sample size calculation). DISCUSSION: There remains substantial opportunity for improvement in the reporting of animal research modelling stroke, particularly in the lacunar stroke literature. Further, automated tools perform sufficiently well to identify whether studies report blinded assessment of outcome, but improvements are required in the tools to ascertain whether randomization and a sample size calculation were reported. PMID- 29026003 TI - Neutralization of either IL-17A or IL-17F is sufficient to inhibit house dust mite induced allergic asthma in mice. AB - T helper (Th)17 immune response participates in allergic lung inflammation and asthma is reduced in the absence of interleukin (IL)-17 in mice. Since IL-17A and IL-17F are induced and bind the shared receptor IL-17RA, we asked whether both IL 17A and IL-17F contribute to house dust mite (HDM) induced asthma. We report that allergic lung inflammation is attenuated in absence of either IL-17A or IL-17F with reduced airway hyperreactivity, eosinophilic inflammation, goblet cell hyperplasia, cytokine and chemokine production as found in absence of IL-17RA. Furthermore, specific antibody neutralization of either IL-17A or IL-17F given during the sensitization phase attenuated allergic lung inflammation and airway hyperreactivity. In vitro activation by HDM of primary dendritic cells revealed a comparable induction of CXCL1 and IL-6 expression and the response to IL-17A and IL-17F relied on IL-17RA signaling via the adaptor protein act1 in fibroblasts. Therefore, HDM-induced allergic respiratory response depends on IL-17RA via act1 signaling and inactivation of either IL-17A or IL-17F is sufficient to attenuate allergic asthma in mice. PMID- 29026004 TI - Oxidative stress regulates cellular bioenergetics in esophageal squamous cell carcinoma cell. AB - The aim of the present study was to explore the effects of oxidative stress induced by CoCl2 and H2O2 on the regulation of bioenergetics of esophageal squamous cell carcinoma (ESCC) cell line TE-1 and analyze its underlying mechanism. Western blot results showed that CoCl2 and H2O2 treatment of TE-1 cells led to significant reduction in mitochondrial respiratory chain complex subunits expression and increasing intracellular reactive oxygen species (ROS) production. We further found that TE-1 cells treated with CoCl2, a hypoxia mimicking reagent, dramatically reduced the oxygen consumption rate (OCR) and increased the extracellular acidification rate (ECAR). However, H2O2 treatment decreased both the mitochondrial respiration and aerobic glycolysis significantly. Moreover, we found that H2O2 induces apoptosis in TE-1 cells through the activation of PARP, Caspase 3, and Caspase 9. Therefore, our findings indicate that CoCl2 and H2O2 could cause mitochondrial dysfunction by up regulation of ROS and regulating the cellular bioenergy metabolism, thus affecting the survival of tumor cells. PMID- 29026005 TI - Low expression of miR-30a-5p induced the proliferation and invasion of oral cancer via promoting the expression of FAP. AB - The study aimed at investigating the effects of miR-30a-5p on the biological functions of oral cancer cells and figuring out the potential mechanism. We first verified the low expression of miR-30a-5p and high expression of FAP (Homo sapiens fibroblast activation protein alpha) in oral cancerous tissues and their negative correlation. Then, the target relationship between miR-30a-5p and FAP was validated by dual luciferase reporter assay and biotin-coupled miRNA pulldown assay. After transfection in Tca-8113 cells and SCC-15 cells, MTT, colony formation, Transwell, and wound healing assays were performed to investigate how miR-30a-5p and FAP adjusted propagation, invasiveness, and migration, respectively. Mounting evidence supported that miR-30a-5p directly targetted FAP and suppressed its expression in oral cavity cancer cells (OSCCs). By suppressing FAP expression, miR-30a-5p significantly inhibited cell propagation, migration, and invasion. Therefore, miR-30a-5p might be a new therapeutic target for oral cancer treatment. PMID- 29026007 TI - Milk fat components with potential anticancer activity-a review. AB - During many years, the milk fat has been unfairly undervalued due to its association with higher levels of cardiovascular diseases, dyslipidaemia or obesity, among others. However, currently, this relationship is being re evaluated because some of the dairy lipid components have been attributed potential health benefits. Due to this, and based on the increasing incidence of cancer in our society, this review work aims to discuss the state of the art concerning scientific evidence of milk lipid components and reported anticancer properties. Results from the in vitro and in vivo experiments suggest that specific fatty acids (FA) (as butyric acid and conjugated linoleic acid (CLA), among others), phospholipids and sphingolipids from milk globule membrane are potential anticarcinogenic agents. However, their mechanism of action remains still unclear due to limited and inconsistent findings in human studies. PMID- 29026009 TI - Inactivated Lactobacillus promotes protection against myocardial ischemia reperfusion injury through NF-kappaB pathway. AB - Although restoration of blood flow to an ischemic organ is essential to prevent irreversible cellular injury, reperfusion may augment tissue injury in excess of that produced by ischemia alone. So this experiment was designed to study the protective effects and mechanism of inactivated Lactobacillus (Lac) on myocardial ischemia-reperfusion (I-R) injury (MIRI). MIRI rat models were established by ligation of left anterior descending coronary artery for ~30 min and then, reperfusion for 120 min and divided into control group, model group, and Lac (106, 107, and 108 cfu/kg) groups. At the end of the test, the creatine kinase (CK) activity, lactate dehydrogenase (LDH) activity, superoxide dismutase (SOD) activity and malondialdehyde (MDA) content were assayed by corresponding kits. The heart was obtained from rats and the myocardial infarction area was determined by TTC staining and myocardial endothelial cell apoptosis rate was determined by Tunel kit. Besides, A20, IkappaB, nuclear factor (NF)-kappaB, and nitric oxide (NO) synthase (NOS) were also assayed by Western blot. When compared with model group, Lac obviously reduces MIRI in the rat by reducing myocardial infarction area and the apoptosis rate of endothelial cells; reduce the serum CK, LDH, and MDA content; increase the serum SOD activity; and suppress NF-kappaB signaling and NOS expression in the myocardial tissues. Lac pretreatment can inhibit lipid peroxidation and effectively improve MIRI caused by oxygen free radical through inhibiting NF-kappaB signaling. PMID- 29026010 TI - Cover stories: Making the Orbiting Carbon Observatory-2 cover. PMID- 29026008 TI - Abdominal obesity and colorectal cancer risk: systematic review and meta-analysis of prospective studies. AB - The association between abdominal obesity (as measured by waist circumference (WC) and waist-to-hip ratio (WHR)) and colorectal cancer (CRC) has not been fully quantified, and the magnitude of CRC risk associated with abdominal obesity is still unclear. A meta-analysis of prospective studies was performed to elucidate the CRC risk associated with abdominal obesity. Pubmed and Embase were searched for studies assessing the association between abdominal obesity and CRC risk. Relative risks (RRs) with 95% confidence intervals (95% CIs) were pooled using random-effects model of meta-analysis. Nineteen prospective cohort studies from eighteen publications were included in this meta-analysis. A total of 12,837 CRC cases were identified among 1,343,560 participants. Greater WC and WHR were significantly associated with increased risk of total colorectal cancer (WC: RR 1.42, 95% CI 1.30, 1.55; WHR: RR 1.39, 95% CI 1.25, 1.53), colon cancer (WC: RR 1.53, 95% CI 1.36, 1.72; WHR: 1.39, 95% CI 1.18, 1.63), and rectal cancer (WC: RR 1.20, 95% CI 1.03, 1.39; WHR: RR 1.22, 95% CI 1.05, 1.42). Subgroup analyses further identified the robustness of the association above. No obvious risk of publication bias was observed. In summary, abdominal obesity may play an important role in the development of CRC. PMID- 29026006 TI - Potential contribution of alveolar epithelial type I cells to pulmonary fibrosis. AB - Pulmonary fibrosis (PF) is characterized by inflammation and fibrosis of the interstitium and destruction of alveolar histoarchitecture ultimately leading to a fatal impairment of lung function. Different concepts describe either a dominant role of inflammatory pathways or a disturbed remodeling of resident cells of the lung parenchyma during fibrogenesis. Further, a combination of both the mechanisms has been postulated. The present review emphasizes the particular involvement of alveolar epithelial type I cells in all these processes, their contribution to innate immune/inflammatory functions and maintenance of proper alveolar barrier functions. Amongst the different inflammatory and repair events the purinergic receptor P2X7, an ATP-gated cationic channel that regulates not only apoptosis, necrosis, autophagy, and NLPR3 inflammosome activation, but also the turnover of diverse tight junction (TJ) and water channel proteins, seems to be essential for the stability of alveolar barrier integrity and for the interaction with protective factors during lung injury. PMID- 29026011 TI - Contrasting carbon cycle responses of the tropical continents to the 2015-2016 El Nino. AB - The 2015-2016 El Nino led to historically high temperatures and low precipitation over the tropics, while the growth rate of atmospheric carbon dioxide (CO2) was the largest on record. Here we quantify the response of tropical net biosphere exchange, gross primary production, biomass burning, and respiration to these climate anomalies by assimilating column CO2, solar-induced chlorophyll fluorescence, and carbon monoxide observations from multiple satellites. Relative to the 2011 La Nina, the pantropical biosphere released 2.5 +/- 0.34 gigatons more carbon into the atmosphere in 2015, consisting of approximately even contributions from three tropical continents but dominated by diverse carbon exchange processes. The heterogeneity of the carbon-exchange processes indicated here challenges previous studies that suggested that a single dominant process determines carbon cycle interannual variability. PMID- 29026012 TI - The Orbiting Carbon Observatory-2 early science investigations of regional carbon dioxide fluxes. AB - NASA's Orbiting Carbon Observatory-2 (OCO-2) mission was motivated by the need to diagnose how the increasing concentration of atmospheric carbon dioxide (CO2) is altering the productivity of the biosphere and the uptake of CO2 by the oceans. Launched on 2 July 2014, OCO-2 provides retrievals of the column-averaged CO2 dry air mole fraction ([Formula: see text]) as well as the fluorescence from chlorophyll in terrestrial plants. The seasonal pattern of uptake by the terrestrial biosphere is recorded in fluorescence and the drawdown of [Formula: see text] during summer. Launched just before one of the most intense El Ninos of the past century, OCO-2 measurements of [Formula: see text] and fluorescence record the impact of the large change in ocean temperature and rainfall on uptake and release of CO2 by the oceans and biosphere. PMID- 29026013 TI - OCO-2 advances photosynthesis observation from space via solar-induced chlorophyll fluorescence. AB - Quantifying gross primary production (GPP) remains a major challenge in global carbon cycle research. Spaceborne monitoring of solar-induced chlorophyll fluorescence (SIF), an integrative photosynthetic signal of molecular origin, can assist in terrestrial GPP monitoring. However, the extent to which SIF tracks spatiotemporal variations in GPP remains unresolved. Orbiting Carbon Observatory 2 (OCO-2)'s SIF data acquisition and fine spatial resolution permit direct validation against ground and airborne observations. Empirical orthogonal function analysis shows consistent spatiotemporal correspondence between OCO-2 SIF and GPP globally. A linear SIF-GPP relationship is also obtained at eddy-flux sites covering diverse biomes, setting the stage for future investigations of the robustness of such a relationship across more biomes. Our findings support the central importance of high-quality satellite SIF for studying terrestrial carbon cycle dynamics. PMID- 29026014 TI - Influence of El Nino on atmospheric CO2 over the tropical Pacific Ocean: Findings from NASA's OCO-2 mission. AB - Spaceborne observations of carbon dioxide (CO2) from the Orbiting Carbon Observatory-2 are used to characterize the response of tropical atmospheric CO2 concentrations to the strong El Nino event of 2015-2016. Although correlations between the growth rate of atmospheric CO2 concentrations and the El Nino Southern Oscillation are well known, the magnitude of the correlation and the timing of the responses of oceanic and terrestrial carbon cycle remain poorly constrained in space and time. We used space-based CO2 observations to confirm that the tropical Pacific Ocean does play an early and important role in modulating the changes in atmospheric CO2 concentrations during El Nino events-a phenomenon inferred but not previously observed because of insufficient high density, broad-scale CO2 observations over the tropics. PMID- 29026015 TI - Spaceborne detection of localized carbon dioxide sources. AB - Spaceborne measurements by NASA's Orbiting Carbon Observatory-2 (OCO-2) at the kilometer scale reveal distinct structures of atmospheric carbon dioxide (CO2) caused by known anthropogenic and natural point sources. OCO-2 transects across the Los Angeles megacity (USA) show that anthropogenic CO2 enhancements peak over the urban core and decrease through suburban areas to rural background values more than ~100 kilometers away, varying seasonally from ~4.4 to 6.1 parts per million. A transect passing directly downwind of the persistent isolated natural CO2 plume from Yasur volcano (Vanuatu) shows a narrow filament of enhanced CO2 values (~3.4 parts per million), consistent with a CO2 point source emitting 41.6 kilotons per day. These examples highlight the potential of the OCO-2 sensor, with its unprecedented resolution and sensitivity, to detect localized natural and anthropogenic CO2 sources. PMID- 29026016 TI - Comment on "Selective anaerobic oxidation of methane enables direct synthesis of methanol". AB - Sushkevich et al (Reports, 5 May 2017, p. 523) report on the use of water to oxidize methane to methanol. This seems problematic because the reaction of CH4 and water to generate methanol and H2 is highly unfavorable at any temperature (DeltaG of reaction ~ +28 kcal/mol at 200 degrees C, equilibrium constant K ~ 10 13). Consequently, even if the reaction is separated into two steps, it seems inconceivable to carry out such a net reaction in a practical manner. PMID- 29026017 TI - Response to Comment on "Selective anaerobic oxidation of methane enables direct synthesis of methanol". AB - Periana argues that the stepwise reaction of methane with water is thermodynamically unfavorable and therefore impractical. We reply by presenting an in-depth thermodynamic analysis of each step in the process and show that the surface concentrations of the reactants and products as well as the stabilizing effect of additional water molecules, as discussed in the original paper, fully support the feasibility of the proposed reaction. PMID- 29026018 TI - Rebuilding Caribbean science. PMID- 29026020 TI - Drug-resistant malaria advances in Mekong. PMID- 29026021 TI - Cold, clear view of molecules nets chemistry prize. PMID- 29026022 TI - How Africans evolved a palette of skin tones. PMID- 29026023 TI - Evolution accelerated when life set foot on land. PMID- 29026025 TI - Most distant Milky Way outpost mapped. PMID- 29026024 TI - 'Science wars' veteran has a new mission. PMID- 29026027 TI - A cold case. PMID- 29026026 TI - Publishers take academic networking site to court. PMID- 29026028 TI - Addressing supply issues for natural products in the clinic. PMID- 29026029 TI - A direct look at halogen bonds. PMID- 29026030 TI - Helping robots blend into the background. PMID- 29026031 TI - Quantum emitters in two dimensions. PMID- 29026032 TI - Life, death, and antibodies. PMID- 29026033 TI - Atlas...t, patterns from every cell. PMID- 29026034 TI - Sir Patrick Bateson (1938-2017). PMID- 29026035 TI - Reproductive health in culture wars crossfire. PMID- 29026036 TI - Brazil's development turns river into sea. PMID- 29026037 TI - Brazil's scientists and churches share goals. PMID- 29026038 TI - Sand in demand: Trapped behind dams. PMID- 29026039 TI - Measuring Earth's carbon cycle. PMID- 29026040 TI - Stretchable surfaces with programmable 3D texture morphing for synthetic camouflaging skins. AB - Technologies that use stretchable materials are increasingly important, yet we are unable to control how they stretch with much more sophistication than inflating balloons. Nature, however, demonstrates remarkable control of stretchable surfaces; for example, cephalopods can project hierarchical structures from their skin in milliseconds for a wide range of textural camouflage. Inspired by cephalopod muscular morphology, we developed synthetic tissue groupings that allowed programmable transformation of two-dimensional (2D) stretchable surfaces into target 3D shapes. The synthetic tissue groupings consisted of elastomeric membranes embedded with inextensible textile mesh that inflated to within 10% of their target shapes by using a simple fabrication method and modeling approach. These stretchable surfaces transform from flat sheets to 3D textures that imitate natural stone and plant shapes and camouflage into their background environments. PMID- 29026041 TI - Anti-Markovnikov alkene oxidation by metal-oxo-mediated enzyme catalysis. AB - Catalytic anti-Markovnikov oxidation of alkene feedstocks could simplify synthetic routes to many important molecules and solve a long-standing challenge in chemistry. Here we report the engineering of a cytochrome P450 enzyme by directed evolution to catalyze metal-oxo-mediated anti-Markovnikov oxidation of styrenes with high efficiency. The enzyme uses dioxygen as the terminal oxidant and achieves selectivity for anti-Markovnikov oxidation over the kinetically favored alkene epoxidation by trapping high-energy intermediates and catalyzing an oxo transfer, including an enantioselective 1,2-hydride migration. The anti Markovnikov oxygenase can be combined with other catalysts in synthetic metabolic pathways to access a variety of challenging anti-Markovnikov functionalization reactions. PMID- 29026043 TI - Mapping spiral structure on the far side of the Milky Way. AB - Little is known about the portion of the Milky Way lying beyond the Galactic center at distances of more than 9 kiloparsec from the Sun. These regions are opaque at optical wavelengths because of absorption by interstellar dust, and distances are very large and hard to measure. We report a direct trigonometric parallax distance of [Formula: see text] kiloparsec obtained with the Very Long Baseline Array to a water maser source in a region of active star formation. These measurements allow us to shed light on Galactic spiral structure by locating the Scutum-Centaurus spiral arm as it passes through the far side of the Milky Way and to validate a kinematic method for determining distances in this region on the basis of transverse motions. PMID- 29026042 TI - Scalable synthesis of bryostatin 1 and analogs, adjuvant leads against latent HIV. AB - Bryostatin 1 is an exceedingly scarce marine-derived natural product that is in clinical development directed at HIV/AIDS eradication, cancer immunotherapy, and the treatment of Alzheimer's disease. Despite this unique portfolio of indications, its availability has been limited and variable, thus impeding research and clinical studies. Here, we report a total synthesis of bryostatin 1 that proceeds in 29 total steps (19 in the longest linear sequence, >80% average yield per step), collectively produces grams of material, and can be scaled to meet clinical needs (~20 grams per year). This practical solution to the bryostatin supply problem also opens broad, facile, and efficient access to derivatives and potentially superior analogs. PMID- 29026045 TI - I am a United Academic Worker. PMID- 29026046 TI - Doctor for Society: paying tribute to role models of humanitarianism and professionalism. PMID- 29026044 TI - Innovative scattering analysis shows that hydrophobic disordered proteins are expanded in water. AB - A substantial fraction of the proteome is intrinsically disordered, and even well folded proteins adopt non-native geometries during synthesis, folding, transport, and turnover. Characterization of intrinsically disordered proteins (IDPs) is challenging, in part because of a lack of accurate physical models and the difficulty of interpreting experimental results. We have developed a general method to extract the dimensions and solvent quality (self-interactions) of IDPs from a single small-angle x-ray scattering measurement. We applied this procedure to a variety of IDPs and found that even IDPs with low net charge and high hydrophobicity remain highly expanded in water, contrary to the general expectation that protein-like sequences collapse in water. Our results suggest that the unfolded state of most foldable sequences is expanded; we conjecture that this property was selected by evolution to minimize misfolding and aggregation. PMID- 29026047 TI - Response to the Food and Drug Administration warning on the use of anaesthetics in young children. PMID- 29026048 TI - Spinal cord stimulation for chronic non-cancer pain: a review of current evidence and practice. AB - Spinal cord stimulation provides analgesia through electrical stimulation of the dorsal column of the spinal cord via electrode leads placed into the epidural space. In traditional tonic stimulation, a painful sensation is replaced with paraesthesia. Spinal cord stimulation is effective in reducing neuropathic pain, enhancing function, and improving quality of life in different chronic pain conditions. Currently, there is most evidence to support its use for failed back surgery syndrome when multidisciplinary conventional management is unsuccessful. Temporary trial leads are inserted in carefully selected patients to test their responsiveness prior to permanent implantation. Newer neuromodulation modalities are now available. These include burst stimulation, high-frequency stimulation, and dorsal root ganglion stimulation. Results are encouraging to date, and they may provide superior analgesia and cover for deficiencies of traditional tonic stimulation. Although complications are not uncommon, they are rarely life threatening or permanently disabling. Nonetheless, device removal is occasionally needed. PMID- 29026049 TI - Diabetes in older people: position statement of The Hong Kong Geriatrics Society and the Hong Kong Society of Endocrinology, Metabolism and Reproduction. AB - Following a survey on the clinical practice of geriatricians in the management of older people with diabetes and a study of hypoglycaemia in diabetic patients, a round-table discussion with geriatricians and endocrinologists was held in January 2015. Consensus was reached for six domains specifically related to older diabetic people: (1) the considerations when setting an individualised diabetic management; (2) inclusion of geriatric syndrome screening in assessment; (3) glycaemic and blood pressure targets; (4) pharmacotherapy; (5) restrictive diabetic diet; and (6) management goals for nursing home residents. PMID- 29026050 TI - Immunoglobulin G4-related sclerosing disease involving the mandible. PMID- 29026051 TI - Immunoglobulin G4-related disease masquerading as tonsil carcinoma. PMID- 29026052 TI - Can Hong Kong take advantage of recent advances in allergy prevention? PMID- 29026053 TI - Obituary: Professor Sir David Todd. PMID- 29026054 TI - Functional status and early surgery in elderly patients with hip fracture. PMID- 29026055 TI - Childhood lead poisoning: an overview. AB - Childhood lead poisoning is a major public health concern in many countries. In 2015, the Hong Kong SAR Government and its citizens faced a major public health crisis due to the presence of lead in the drinking water of a number of public housing estates. Fortunately, no child was diagnosed with lead poisoning that required treatment with chelation. Lead is a ubiquitous, naturally occurring material that exists in air, dust, soil, and water. It is also widely present in industrial products including petrol, paints, ceramics, food cans, candies, cosmetics, traditional remedies, batteries, solder, stained glass, crystal vessels, ammunition, ceramic glazes, jewellry, and toys. It can also be found in human milk. There is no safe blood lead level and it may be impossible to completely eliminate lead from any city. Hence routine measurement of blood lead levels is not considered useful. Acute poisoning, especially with encephalopathy, deserves immediate medical treatment in hospital. Chelation therapy is recommended if blood lead level is 45 MUg/dL or higher. For blood levels between 20 and 45 MUg/dL, treatment is indicated if the child is symptomatic. For blood levels below 20 MUg/dL in otherwise asymptomatic children, the principle of treatment is to provide long-term neurodevelopmental follow-up and counselling. In all cases, immediate removal of the source of lead exposure is vital. Even low levels of lead exposure can significantly impair learning, educational attainment, and neurodevelopment. PMID- 29026056 TI - Patient opinion of lower urinary tract symptoms and their treatment: a cross sectional survey in Hong Kong public urology clinics. AB - INTRODUCTION: Lower urinary tract symptoms collectively represent a common condition among ageing men. There are, however, limited data on the frequency of individual symptoms in patients who seek specialist care. We conducted a multinational survey in South-East Asia to evaluate patients' self-reported prevalence, bother, treatment, and treatment satisfaction of four lower urinary tract symptoms namely, urgency, nocturia, slow stream, and post-micturition dribble. This report presents the analysis of the Hong Kong subpopulation. METHODS: This cross-sectional survey involved adult men aged over 18 years who attended a urology out-patient clinic because of lower urinary tract symptoms. A structured questionnaire, translated and validated in the local languages, was self-administered by patients. RESULTS: Of 1436 respondents surveyed in the region, 225 were from Hong Kong of whom most were aged 56 to 75 years, retired, and had no history of any previous prostate surgery. Overall, the self-reported prevalence of nocturia of at least one void per night was 93% (95% confidence interval, 90%-97%), slow stream 76% (71%-82%), post-micturition dribble 70% (64% 76%), and urgency 50% (43%-56%). Symptoms for which most respondents reported "some" or "a lot" of bother included: nocturia, defined as at least two voids per night (77%), and urgency and post-micturition dribble (73%). Only 39% to 54% of patients had previously received treatment but were not entirely satisfied with it. An understanding of their condition remained suboptimal. CONCLUSIONS: In Hong Kong, nocturia emerged as the most prevalent and one of the most bothersome symptoms among men who sought urologist care for lower urinary tract symptoms. Compared with the non-Hong Kong population, Hong Kong respondents tended to be highly symptomatic and bothered. They were, however, less likely to have received treatment and were generally less satisfied with previous treatment. PMID- 29026057 TI - Pathological outcome for Chinese patients with low-risk prostate cancer eligible for active surveillance and undergoing radical prostatectomy: comparison of six different active surveillance protocols. AB - INTRODUCTION: Active surveillance is one of the therapeutic options for the management of patients with low-risk prostate cancer. This study compared the performance of six different active surveillance protocols for prostate cancer in the Chinese population. METHODS: Patients who underwent radical prostatectomy for prostate cancer from January 1998 to December 2012 at a university teaching hospital in Hong Kong were reviewed. Six active surveillance protocols were applied to the cohort. Statistical analyses were performed to compare the probabilities of missing unfavourable pathological outcome. The sensitivity and specificity of each protocol in identifying low-risk disease were compared. RESULTS: During the study period, 287 patients were included in the cohort. Depending on different active surveillance protocols used, extracapsular extension, seminal vesicle invasion, pathological T3 disease, and upgrading of Gleason score were present on final pathology in 3.3%-17.1%, 0%-3.3%, 3.3%-19.1%, and 20.6%-34.5% of the patients, respectively. The University of Toronto protocol had a higher rate of extracapsular extension at 17.1% and pathological T3 disease at 19.1% on final pathology than the more stringent protocols from John Hopkins (3.3% extracapsular extension, P=0.05 and 3.3% pathological T3 disease, P=0.03) and Prostate Cancer Research International: Active Surveillance (PRIAS; 8.0% pathological T3 disease, P=0.04). The Royal Marsden protocol had a higher rate of upgrading of Gleason score at 34.5% compared with the more stringent protocol of PRIAS at 20.6% (P=0.04). The specificities in identifying localised disease and low-risk histology among different active surveillance protocols were 59%-98% and 58%-94%, respectively. The John Hopkins active surveillance protocol had the highest specificity in both selecting localised disease (98%) and low-risk histology (94%). CONCLUSIONS: Active surveillance protocols based on prostate specific antigen and Gleason score alone or including Gleason score of 3+4 may miss high-risk disease and should be used cautiously. The John Hopkins and PRIAS protocols are highly specific in identifying localised disease and low-risk histology. PMID- 29026058 TI - Clinical utility of late-night and post-overnight dexamethasone suppression salivary cortisone for the investigation of Cushing's syndrome. AB - INTRODUCTION: There is a pressing need to identify diagnostic testing for Cushing's syndrome that can be achieved with ease and at low cost. This study aimed to explore the usefulness of late-night and post-overnight 1-mg dexamethasone suppression salivary cortisone, as measured by liquid chromatography-tandem mass spectrometry, for investigation of hypercortisolism. METHODS: Salivary cortisone data of subjects were investigated according to a pre specified protocol. Subjects were classified as having 'hypercortisolism' or 'eucortisolism' on the basis of histological or biochemical criteria. Receiver operating characteristic curves were drawn to identify the cut-off values and study their performance characteristics. We measured 24-hour urinary free cortisol; late-night salivary cortisol and cortisone; and post-overnight 1-mg dexamethasone suppression serum cortisol, and salivary cortisol and cortisone. Saliva and urine samples were assayed by liquid chromatography-tandem mass spectrometry. RESULTS: In this study, 21 subjects were classified as having hypercortisolism and 78 as having eucortisolism. A late-night salivary cortisone cut-off of 13.50 nmol/L had a sensitivity of 94.7% and a specificity of 87.2%. After taking 1-mg dexamethasone the night before, a salivary cortisol cut-off of 0.85 nmol/L had a sensitivity of 76.2% and a specificity of 96.2%; a salivary cortisone cut-off of 7.45 nmol/L had a sensitivity of 85.7% and a specificity of 94.9%, while a salivary cortisone cut-off of 3.25 nmol/L had a sensitivity of 95.2% and a specificity of 79.5%. Many salivary cortisol samples were below the detection limit of liquid chromatography-tandem mass spectrometry. In comparison with salivary cortisol, salivary cortisone had a better correlation with total serum cortisol and better diagnostic performance following dexamethasone suppression. CONCLUSIONS: Both late-night and post-overnight dexamethasone suppression salivary cortisone levels are of diagnostic value in the investigation of hypercortisolism. PMID- 29026061 TI - Humidifier disinfectant-associated specific diseases should be called together as "humidifier disinfectant syndrome". AB - Humidifier disinfectant (HD) damage was terrible chemical damage caused by household goods that happened in only South Korea, but still very little is known in HD damage. Up to now, previous research tried to focus on interstitial fibrosis on terminal bronchioles and alveoli because it is a specific finding, compared with other diseases. To figure out whole effects from HDs, much epidemiologic and toxicologic research is underway. HDs were shown to give rise to typical toxicologic effects on various target organs, such as skin, conjunctiva, naval mucosa, bronchial mucosa, alveoli and so on, which shared common toxicological responses. On a specific target, specific toxicologic effects existed. Diverse diseases along exposure pathways can occur at the same time with a common toxicologic mechanism and cause of HDs, which can be called as HD syndrome. To gain stronger scientific evidence about it, further epidemiological and toxicological studies should be applied. PMID- 29026062 TI - Causal inference in environmental epidemiology. AB - Inferring causality is necessary to achieve the goal of epidemiology, which is to elucidate the cause of disease. Causal inference is conducted in three steps: evaluation of validity of the study, inference of general causality, and inference of individual causality. To evaluate validity of the study, we propose a checklist that focuses on biases and generalizability. For general causal inference, we recommend utilizing Hill's 9 viewpoints. Lastly, individual causality can be inferred based on the general causality and evidence of exposure. Additional considerations may be needed for social or legal purposes; however, these additional considerations should be based on the scientific truth elucidated by the causal inference described in the present article. PMID- 29026060 TI - Unmet needs in health training among nurses in rural Chinese township health centers: a cross-sectional hospital-based study. AB - PURPOSE: Maintaining a sufficient and competent rural nursing workforce is an important goal of the Chinese health delivery system. However, few studies have investigated the health training status or conducted a needs assessment of rural Chinese nurses during this time of great transformations in health policy. This study was conducted to explore the current health training status of nurses working in rural Chinese township health centers (THCs) and to ascertain their perceived needs. METHODS: A cross-sectional survey using a self-administered structured questionnaire was conducted among 240 THC nurses in Guangxi Zhuang Autonomous Region, China from March 2014 to August 2014. The survey questionnaire was adapted from the Second Chinese Survey of Demographic Data and Training Demand for Health Professionals in THCs developed by the Ministry of Education. RESULTS: The nurses in THCs were young, with a low educational level. Their perceived needs for health training included further clinical studies at city level hospitals to improve their skills and theoretical studies at medical universities in emergency medicine and general practice. Overall, 71.9% of the nurses with a secondary technical school background expected to pursue junior college studies, and 68.5% of the nurses with a junior college education expected to pursue a bachelor's degree. A decentralized program with theoretical studies at medical universities and practical studies at county hospitals was regarded as feasible by 66.9% of the respondents. CONCLUSION: Health-training programs for nurses in Chinese THCs must be improved in terms of coverage, delivery mode, and content. A decentralized degree-linked training program in which medical universities and city hospitals collaborate would be an appropriate mode of delivery. PMID- 29026063 TI - Morphological transformation induced by silver nanoparticles in a Balb/c 3T3 A31 1-1 mouse cell model to evaluate in vitro carcinogenic potential. AB - Carcinogenesis is a complex process involved in genotoxic and non-genotoxic pathways. The carcinogenic potential of silver nanoparticles (AgNPs) has been predicted by examining their genotoxic effects using several in vitro and in vivo models. However, there is no little information regarding the non-genotoxic effects of AgNPs related to carcinogenesis. The in vitro cell transformation assay (CTA) provides specific and sensitive evidence for predicting the tumorigenic potential of a chemical, which cannot be obtained by genotoxicity testing. Therefore, we carried out CTA in Balb/c 3T3 A31-1-1 cells to evaluate the carcinogenic potential of AgNPs. Colony-forming efficiency and crystal violet assays were carried out to determine the cytotoxicity of AgNPs. A cytokinesis block micronucleus (CBMN) assay and CTA were performed using Balb/c 3T3 A31-1-1 cells to predict the in vitro carcinogenic potential of AgNPs. In the CBMN assay, AgNPs (10.6 MUg/mL) induced a significant increase in micronucleus formation indicating a genotoxic effect. Thus, AgNPs could be an initiator of carcinogenesis. In the CTA, used to assess the carcinogenic potential of AgNPs, cells exposed to AgNPs for 72 hours showed significantly induced morphological neoplastic transformation at all tested doses (0.17, 0.66, 2.65, 5.30, and 10.60 MUg/mL), and the transformation frequency was significantly increased in a dose dependent manner. These results indicate that short-term exposure (72 hours) to AgNPs had in vitro carcinogenetic potency in Balb/c 3T3 A31-1-1 cells. PMID- 29026064 TI - The Effect of Recipient Body Mass Index and Its Extremes on Survival and Graft Vascular and Biliary Complications After Liver Transplantation: A Single Center Retrospective Study. AB - BACKGROUND This is the largest UK-based study on the effect of recipient body mass index (BMI) and its extremes (BMI <18.5 and BMI >=35 kg/m2) on liver transplant (LT) outcomes. Its purpose was to analyze the BMI effect on post-LT mortality, graft loss, primary non-function (PNF), and graft vascular and biliary complications. MATERIAL AND METHODS Data were retrieved from a single-center LT database of 2,115 consecutive patients receiving first LT during period February 2004 to September 2015. Survivals were compared across the BMI groups; the effects of recipient BMI on survival, PNF, and graft vascular and biliary complications were analyzed via regression. RESULTS Autoimmune disease and nonalcoholic steatohepatitis were prevalent among underweight and morbidly obese adults, respectively. Graft survival was similar across BMI classes at 30 days and in 1, 2, 5, and 10 years (p=0.75) and on obese versus non-obese (p=0.33). BMI <35 kg/m2 versus BMI >=35 kg/m2 mean graft survival was similar (p=0.84). BMI <18.5 kg/m2 recipients tended to have inferior mean graft and patient survivals; however, the difference was non-significant (p=0.09 and p=0.1 respectively). BMI <18.5 kg/m2 recipients were at higher risk of hepatic artery thrombosis (HR, 1.73, 95% CI 1.73-3, p<0.05). Adult underweight status was an independent HAT risk factor (HR 3, 95% CI 1-8.6, p=0.046). BMI class did not affect ischemic cholangiopathy risk (p=0.84). However, the overall biliary complication risk increased by 3% for every 1 kg/m2 BMI rise. CONCLUSIONS Post-LT survival is independent of recipient BMI. Underweight status is linked to higher HAT risk. Biliary complication risk increases with rising recipient BMI. After appropriate recipient selection, recipient BMI extremes are not a contraindication for LT. PMID- 29026065 TI - Urethral Diverticulum Presenting as a Large Vaginal Mass Complicating Pregnancy and Delivery. AB - BACKGROUND A case report of urethral diverticulum complicating pregnancy is presented. The diagnosis and management are challenging because of the rare nature of this condition, the varied presentations and differential diagnoses, and the possibility of misdiagnosis. CASE REPORT A 25-year-old primigravida with scheduled induction of labor at 39 weeks gestation due to gestational diabetes mellitus presented for a routine antenatal appointment at 38 weeks and four days. On digital cervical examination, she was found to have a large semi-solid anterior vaginal mass, shown by trans-vaginal ultrasound to have a nearly solid appearance of a 5*7 cm mass with septation. Maternal Fetal Medicine and Gynecologic Oncology consultations were obtained primary cesarean section with vaginal biopsy in the Operating Room were recommended. Following an uncomplicated cesarean delivery and with the patient still under spinal anesthesia, the anterior vaginal mass was examined and found to contain 200 ml of purulent material. Because a diagnosis of urethral diverticulum was made, a biopsy was not performed. The patient was placed on antibiotic prophylaxis for the remainder of her hospital course. Follow-up CT scan confirmed a large urethral diverticulum, and she was referred to the Fetal Pelvic Medicine and Reconstructive Surgery (FPMRS) and Urogynecology units for treatment. CONCLUSIONS Early identification of urethral diverticulum during the pregnancy may allow for treatment and a trial of labor with vaginal delivery. MRI is the recommended imaging modality in identifying urethral diverticulum. PMID- 29026066 TI - Aberrant Promoter Methylation of Protocadherin8 (PCDH8) in Serum is a Potential Prognostic Marker for Low Gleason Score Prostate Cancer. AB - BACKGROUND PCDH8 is a newly-discovered suppressor gene that is frequently inactivated by aberrant methylation in several human cancers, including prostate cancer. The identification of PCDH8 methylation can be used as a potential predictive biomarker. Prostate cancer patients with high Gleason score are considered as being at high risk for tumor recurrence and progression, and adjuvant therapy is often routinely performed in clinical practice. In the present study, we did not measure the methylation of PCDH8 in these patients. The main purpose of the present study was to evaluate the clinical significance of PCDH8 methylation in serum of prostate cancer patients with low Gleason score. MATERIAL AND METHODS PCDH8 methylation in serum samples of 117 patients and 47 controls was checked by methylation-specific PCR (MSP). Then, we correlated PCDH8 methylation status with the clinicopathological parameters of prostate cancer patients with low Gleason score and patient outcomes. RESULTS We found that PCDH8 was more frequently methylated in serum samples of patients with prostate cancer than in controls. PCDH8 methylation was correlated with advanced clinical stage (P=0.021), higher level of preoperative PSA (P=0.008), and positive lymph node metastasis (P=0.010). Moreover, patients with PCDH8 methylation had worse biochemical recurrence (BCR)-free survival (P<0.001) than patients without. Independent prognostic factors for worse BCR-free survival of prostate cancer patients with low Gleason score were: PCDH8 methylation in serum (Exp (B)=3.147, 95% CI: 1.152-7.961, P=0.007), clinical stage (Exp (B)=2.53, 95% CI: 1.032-4.763, P=0.025) and lymph node status (Exp (B)=1.476, 95% CI: 1.107-4.572, P=0.042). CONCLUSIONS Our study indicated that PCDH8 methylation in serum occurred frequently in prostate cancer patients and was correlated with risk factors for poor outcome. The methylation of PCDH8 in serum is a potential predictive marker for prostate cancer patients with low Gleason score after surgery. PMID- 29026067 TI - Designing solid-liquid interphases for sodium batteries. AB - Secondary batteries based on earth-abundant sodium metal anodes are desirable for both stationary and portable electrical energy storage. Room-temperature sodium metal batteries are impractical today because morphological instability during recharge drives rough, dendritic electrodeposition. Chemical instability of liquid electrolytes also leads to premature cell failure as a result of parasitic reactions with the anode. Here we use joint density-functional theoretical analysis to show that the surface diffusion barrier for sodium ion transport is a sensitive function of the chemistry of solid-electrolyte interphase. In particular, we find that a sodium bromide interphase presents an exceptionally low energy barrier to ion transport, comparable to that of metallic magnesium. We evaluate this prediction by means of electrochemical measurements and direct visualization studies. These experiments reveal an approximately three-fold reduction in activation energy for ion transport at a sodium bromide interphase. Direct visualization of sodium electrodeposition confirms large improvements in stability of sodium deposition at sodium bromide-rich interphases.The chemistry at the interface between electrolyte and electrode plays a critical role in determining battery performance. Here, the authors show that a NaBr enriched solid-electrolyte interphase can lower the surface diffusion barrier for sodium ions, enabling stable electrodeposition. PMID- 29026068 TI - Hollow MnO2 as a tumor-microenvironment-responsive biodegradable nano-platform for combination therapy favoring antitumor immune responses. AB - Herein, an intelligent biodegradable hollow manganese dioxide (H-MnO2) nano platform is developed for not only tumor microenvironment (TME)-specific imaging and on-demand drug release, but also modulation of hypoxic TME to enhance cancer therapy, resulting in comprehensive effects favoring anti-tumor immune responses. With hollow structures, H-MnO2 nanoshells post modification with polyethylene glycol (PEG) could be co-loaded with a photodynamic agent chlorine e6 (Ce6), and a chemotherapy drug doxorubicin (DOX). The obtained H-MnO2-PEG/C&D would be dissociated under reduced pH within TME to release loaded therapeutic molecules, and in the meantime induce decomposition of tumor endogenous H2O2 to relieve tumor hypoxia. As a result, a remarkable in vivo synergistic therapeutic effect is achieved through the combined chemo-photodynamic therapy, which simultaneously triggers a series of anti-tumor immune responses. Its further combination with checkpoint-blockade therapy would lead to inhibition of tumors at distant sites, promising for tumor metastasis treatment.MnO2 nanostructures are promising TME responsive theranostic agents in cancer. Here, the authors develop a nano platform based on hollow H-MnO2 nanoshells able to modulate the tissue microenvironment, release a drug and inhibit tumor growth alone or in combination with check-point blockade therapy. PMID- 29026070 TI - Single-molecule study of oxidative enzymatic deconstruction of cellulose. AB - LPMO (lytic polysaccharide monooxygenase) represents a unique paradigm of cellulosic biomass degradation by an oxidative mechanism. Understanding the role of LPMO in deconstructing crystalline cellulose is fundamental to the enzyme's biological function and will help to specify the use of LPMO in biorefinery applications. Here we show with real-time atomic force microscopy that C1 and C4 oxidizing types of LPMO from Neurospora crassa (NcLPMO9F, NcLPMO9C) bind to nanocrystalline cellulose with high preference for the very same substrate surfaces that are also used by a processive cellulase (Trichoderma reesei CBH I) to move along during hydrolytic cellulose degradation. The bound LPMOs, however, are immobile during their adsorbed residence time ( ~ 1.0 min for NcLPMO9F) on cellulose. Treatment with LPMO resulted in fibrillation of crystalline cellulose and strongly ( >= 2-fold) enhanced the cellulase adsorption. It also increased enzyme turnover on the cellulose surface, thus boosting the hydrolytic conversion.Understanding the role of enzymes in biomass depolymerization is essential for the development of more efficient biorefineries. Here, the authors show by atomic force microscopy the real-time mechanism of cellulose deconstruction by lytic polysaccharide monooxygenases. PMID- 29026069 TI - ID3 regulates the MDC1-mediated DNA damage response in order to maintain genome stability. AB - MDC1 plays a critical role in the DNA damage response (DDR) by interacting directly with several factors including gamma-H2AX. However, the mechanism by which MDC1 is recruited to damaged sites remains elusive. Here, we show that MDC1 interacts with a helix-loop-helix (HLH)-containing protein called inhibitor of DNA-binding 3 (ID3). In response to double-strand breaks (DSBs) in the genome, ATM phosphorylates ID3 at serine 65 within the HLH motif, and this modification allows a direct interaction with MDC1. Moreover, depletion of ID3 results in impaired formation of ionizing radiation (IR)-induced MDC1 foci, suppression of gamma-H2AX-bound MDC1, impaired DSB repair, cellular hypersensitivity to IR, and genomic instability. Disruption of the MDC1-ID3 interaction prevents accumulation of MDC1 at sites of DSBs and suppresses DSB repair. Thus, our study uncovers an ID3-dependent mechanism of recruitment of MDC1 to DNA damage sites and suggests that the ID3-MDC1 interaction is crucial for DDR.MDC1 is a key component of the DNA damage response and interacts with several factors such as gamma-H2AX. Here the authors show that MDC1 interacts with ID3, facilitating MDC1 recruitment to sites of damage and repair of breaks. PMID- 29026073 TI - Causes of model dry and warm bias over central U.S. and impact on climate projections. AB - Climate models show a conspicuous summer warm and dry bias over the central United States. Using results from 19 climate models in the Coupled Model Intercomparison Project Phase 5 (CMIP5), we report a persistent dependence of warm bias on dry bias with the precipitation deficit leading the warm bias over this region. The precipitation deficit is associated with the widespread failure of models in capturing strong rainfall events in summer over the central U.S. A robust linear relationship between the projected warming and the present-day warm bias enables us to empirically correct future temperature projections. By the end of the 21st century under the RCP8.5 scenario, the corrections substantially narrow the intermodel spread of the projections and reduce the projected temperature by 2.5 K, resulting mainly from the removal of the warm bias. Instead of a sharp decrease, after this correction the projected precipitation is nearly neutral for all scenarios.Climate models repeatedly show a warm and dry bias over the central United States, but the origin of this bias remains unclear. Here the authors associate this bias to precipitation deficits in models and after applying a correction, projected precipitation in this region shows no significant changes. PMID- 29026072 TI - Dynamic regulation of canonical TGFbeta signalling by endothelial transcription factor ERG protects from liver fibrogenesis. AB - The role of the endothelium in protecting from chronic liver disease and TGFbeta mediated fibrosis remains unclear. Here we describe how the endothelial transcription factor ETS-related gene (ERG) promotes liver homoeostasis by controlling canonical TGFbeta-SMAD signalling, driving the SMAD1 pathway while repressing SMAD3 activity. Molecular analysis shows that ERG binds to SMAD3, restricting its access to DNA. Ablation of ERG expression results in endothelial to-mesenchymal transition (EndMT) and spontaneous liver fibrogenesis in EC specific constitutive hemi-deficient (Erg cEC-Het ) and inducible homozygous deficient mice (Erg iEC-KO ), in a SMAD3-dependent manner. Acute administration of the TNF-alpha inhibitor etanercept inhibits carbon tetrachloride (CCL4) induced fibrogenesis in an ERG-dependent manner in mice. Decreased ERG expression also correlates with EndMT in tissues from patients with end-stage liver fibrosis. These studies identify a pathogenic mechanism where loss of ERG causes endothelial-dependent liver fibrogenesis via regulation of SMAD2/3. Moreover, ERG represents a promising candidate biomarker for assessing EndMT in liver disease.The transcription factor ERG is key to endothelial lineage specification and vascular homeostasis. Here the authors show that ERG balances TGFbeta signalling through the SMAD1 and SMAD3 pathways, protecting the endothelium from endothelial-to-mesenchymal transition and consequent liver fibrosis in mice via a SMAD3-dependent mechanism. PMID- 29026071 TI - Arginine methylation catalyzed by PRMT1 is required for B cell activation and differentiation. AB - Arginine methylation catalyzed by protein arginine methyltransferases (PRMT) is a common post-translational modification in mammalian cells, regulating many important functions including cell signalling, proliferation and differentiation. Here we show the role of PRMT1 in B-cell activation and differentiation. PRMT1 expression and activity in human and mouse peripheral B cells increases in response to in vitro or in vivo activation. Deletion of the Prmt1 gene in mature B cells establishes that although the frequency and phenotype of peripheral B cell subsets seem unaffected, immune responses to T-cell-dependent and independent antigens are substantially reduced. In vitro activation of Prmt1 deficient B cells with a variety of mitogens results in diminished proliferation, differentiation and survival, effects that are correlated with altered signal transduction from the B cell receptor. Thus PRMT1 activity in B cells is required for correct execution of multiple processes that in turn are necessary for humoral immunity.PRMT1 is an arginine methyltransferase involved in a variety of cell functions. Here the authors delete PRMT1 specifically in mature B cells to show the importance of arginine methylation for B cell proliferation, differentiation and survival, and thereby for humoral immunity. PMID- 29026074 TI - Structural insights into the competitive inhibition of the ATP-gated P2X receptor channel. AB - P2X receptors are non-selective cation channels gated by extracellular ATP, and the P2X7 receptor subtype plays a crucial role in the immune and nervous systems. Altered expression and dysfunctions of P2X7 receptors caused by genetic deletions, mutations, and polymorphic variations have been linked to various diseases, such as rheumatoid arthritis and hypertension. Despite the availability of crystal structures of P2X receptors, the mechanism of competitive antagonist action for P2X receptors remains controversial. Here, we determine the crystal structure of the chicken P2X7 receptor in complex with the competitive P2X antagonist, TNP-ATP. The structure reveals an expanded, incompletely activated conformation of the channel, and identified the unique recognition manner of TNP ATP, which is distinct from that observed in the previously determined human P2X3 receptor structure. A structure-based computational analysis furnishes mechanistic insights into the TNP-ATP-dependent inhibition. Our work provides structural insights into the functional mechanism of the P2X competitive antagonist.P2X receptors are nonselective cation channels that are gated by extracellular ATP. Here the authors present the crystal structure of chicken P2X7 with its bound competitive antagonist TNP-ATP and give mechanistic insights into TNP-ATP dependent inhibition through further computational analysis and electrophysiology measurements. PMID- 29026075 TI - Evidence of a chimpanzee-sized ancestor of humans but a gibbon-sized ancestor of apes. AB - Body mass directly affects how an animal relates to its environment and has a wide range of biological implications. However, little is known about the mass of the last common ancestor (LCA) of humans and chimpanzees, hominids (great apes and humans), or hominoids (all apes and humans), which is needed to evaluate numerous paleobiological hypotheses at and prior to the root of our lineage. Here we use phylogenetic comparative methods and data from primates including humans, fossil hominins, and a wide sample of fossil primates including Miocene apes from Africa, Europe, and Asia to test alternative hypotheses of body mass evolution. Our results suggest, contrary to previous suggestions, that the LCA of all hominoids lived in an environment that favored a gibbon-like size, but a series of selective regime shifts, possibly due to resource availability, led to a decrease and then increase in body mass in early hominins from a chimpanzee-sized LCA.The pattern of body size evolution in hominids can provide insight into historical human ecology. Here, Grabowski and Jungers use comparative phylogenetic analysis to reconstruct the likely size of the ancestor of humans and chimpanzees and the evolutionary history of selection on body size in primates. PMID- 29026076 TI - Sample composition alters associations between age and brain structure. AB - Despite calls to incorporate population science into neuroimaging research, most studies recruit small, non-representative samples. Here, we examine whether sample composition influences age-related variation in global measurements of gray matter volume, thickness, and surface area. We apply sample weights to structural brain imaging data from a community-based sample of children aged 3-18 (N = 1162) to create a "weighted sample" that approximates the distribution of socioeconomic status, race/ethnicity, and sex in the U.S. Census. We compare associations between age and brain structure in this weighted sample to estimates from the original sample with no sample weights applied (i.e., unweighted). Compared to the unweighted sample, we observe earlier maturation of cortical and sub-cortical structures, and patterns of brain maturation that better reflect known developmental trajectories in the weighted sample. Our empirical demonstration of bias introduced by non-representative sampling in this neuroimaging cohort suggests that sample composition may influence understanding of fundamental neural processes.The influence of sample composition on human neuroimaging results is unknown. Here, the authors weight a large, community based sample to better reflect the US population and describe how applying these sample weights changes conclusions about age-related variation in brain structure. PMID- 29026077 TI - Coulomb spin liquid in anion-disordered pyrochlore Tb2Hf2O7. AB - The charge ordered structure of ions and vacancies characterizing rare-earth pyrochlore oxides serves as a model for the study of geometrically frustrated magnetism. The organization of magnetic ions into networks of corner-sharing tetrahedra gives rise to highly correlated magnetic phases with strong fluctuations, including spin liquids and spin ices. It is an open question how these ground states governed by local rules are affected by disorder. Here we demonstrate in the pyrochlore Tb2Hf2O7, that the vicinity of the disordering transition towards a defective fluorite structure translates into a tunable density of anion Frenkel disorder while cations remain ordered. Quenched random crystal fields and disordered exchange interactions can therefore be introduced into otherwise perfect pyrochlore lattices of magnetic ions. We show that disorder can play a crucial role in preventing long-range magnetic order at low temperatures, and instead induces a strongly fluctuating Coulomb spin liquid with defect-induced frozen magnetic degrees of freedom.Experimental studies of frustrated spin systems such as pyrochlore magnetic oxides test our understanding of quantum many-body physics. Here the authors show experimentally that Tb2Hf2O7 may be a model material for investigating how structural disorder can stabilize a quantum spin liquid phase. PMID- 29026078 TI - Deciphering TAL effectors for 5-methylcytosine and 5-hydroxymethylcytosine recognition. AB - DNA recognition by transcription activator-like effector (TALE) proteins is mediated by tandem repeats that specify nucleotides through repeat-variable diresidues. These repeat-variable diresidues form direct and sequence-specific contacts to DNA bases; hence, TALE-DNA interaction is sensitive to DNA chemical modifications. Here we conduct a thorough investigation, covering all theoretical repeat-variable diresidue combinations, for their recognition capabilities for 5 methylcytosine and 5-hydroxymethylcytosine, two important epigenetic markers in higher eukaryotes. We identify both specific and degenerate repeat-variable diresidues for 5-methylcytosine and 5-hydroxymethylcytosine. Utilizing these novel repeat-variable diresidues, we achieve methylation-dependent gene activation and genome editing in vivo; we also report base-resolution detection of 5hmC in an in vitro assay. Our work deciphers repeat-variable diresidues for 5 methylcytosine and 5-hydroxymethylcytosine, and provides tools for TALE-dependent epigenome recognition.Transcription activator-like effector proteins recognise specific DNA sequences via tandem repeats. Here the authors demonstrate TALEs can recognise the methylated bases 5mC and 5hmC, enabling them to detect epigenetic modifications. PMID- 29026079 TI - A long-range cis-regulatory element for class I odorant receptor genes. AB - Individual olfactory sensory neurons express a single odorant receptor gene from either class I genes residing in a single cluster on a single chromosome or class II genes spread over multiple clusters on multiple chromosomes. Here, we identify an enhancer element for mouse class I genes, the J element, that is conserved through mammalian species from the platypus to humans. The J element regulates most class I genes expression by exerting an effect over ~ 3 megabases within the whole cluster. Deletion of the trans J element increases the expression frequencies of class I genes from the intact J allele, indicating that the allelic exclusion of class I genes depends on the activity of the J element. Our data reveal a long-range cis-regulatory element that governs the singular class I gene expression and has been phylogenetically preserved to retain a single cluster organization of class I genes in mammals."Each olfactory sensory neuron expresses a single odorant receptor gene from either class I or class II genes. Here, the authors identify an enhancer for mouse class I genes, that is highly conserved, and regulates most class I genes expression by acting over ~ 3 megabases within the whole cluster." PMID- 29026080 TI - All-optical regenerator of multi-channel signals. AB - One of the main reasons why nonlinear-optical signal processing (regeneration, logic, etc.) has not yet become a practical alternative to electronic processing is that the all-optical elements with nonlinear input-output relationship have remained inherently single-channel devices (just like their electronic counterparts) and, hence, cannot fully utilise the parallel processing potential of optical fibres and amplifiers. The nonlinear input-output transfer function requires strong optical nonlinearity, e.g. self-phase modulation, which, for fundamental reasons, is always accompanied by cross-phase modulation and four wave mixing. In processing multiple wavelength-division-multiplexing channels, large cross-phase modulation and four-wave mixing crosstalks among the channels destroy signal quality. Here we describe a solution to this problem: an optical signal processor employing a group-delay-managed nonlinear medium where strong self-phase modulation is achieved without such nonlinear crosstalk. We demonstrate, for the first time to our knowledge, simultaneous all-optical regeneration of up to 16 wavelength-division-multiplexing channels by one device. This multi-channel concept can be extended to other nonlinear-optical processing schemes.Nonlinear optical processing devices are not yet fully practical as they are single channel. Here the authors demonstrate all-optical regeneration of up to 16 channels by one device, employing a group-delay-managed nonlinear medium where strong self-phase modulation is achieved without nonlinear inter-channel crosstalk. PMID- 29026081 TI - Extracellular matrix stiffness and cell contractility control RNA localization to promote cell migration. AB - Numerous RNAs are enriched within cellular protrusions, but the underlying mechanisms are largely unknown. We had shown that the APC (adenomatous polyposis coli) protein controls localization of some RNAs at protrusions. Here, using protrusion-isolation schemes and RNA-Seq, we find that RNAs localized in protrusions of migrating fibroblasts can be distinguished in two groups, which are differentially enriched in distinct types of protrusions, and are additionally differentially dependent on APC. APC-dependent RNAs become enriched in high-contractility protrusions and, accordingly, their localization is promoted by increasing stiffness of the extracellular matrix. Dissecting the underlying mechanism, we show that actomyosin contractility activates a RhoA mDia1 signaling pathway that leads to formation of a detyrosinated-microtubule network, which in turn is required for localization of APC-dependent RNAs. Importantly, a competition-based approach to specifically mislocalize APC dependent RNAs suggests that localization of the APC-dependent RNA subgroup is functionally important for cell migration.Adenomatous polyposis coli (APC) regulates the localization of some mRNAs at cellular protrusions but the underlying mechanisms and functional roles are not known. Here the authors show that APC-dependent RNAs are enriched in contractile protrusions, via detyrosinated microtubules, and enhance cell migration. PMID- 29026083 TI - Chemical signal activation of an organocatalyst enables control over soft material formation. AB - Cells can react to their environment by changing the activity of enzymes in response to specific chemical signals. Artificial catalysts capable of being activated by chemical signals are rare, but of interest for creating autonomously responsive materials. We present an organocatalyst that is activated by a chemical signal, enabling temporal control over reaction rates and the formation of materials. Using self-immolative chemistry, we design a deactivated aniline organocatalyst that is activated by the chemical signal hydrogen peroxide and catalyses hydrazone formation. Upon activation of the catalyst, the rate of hydrazone formation increases 10-fold almost instantly. The responsive organocatalyst enables temporal control over the formation of gels featuring hydrazone bonds. The generic design should enable the use of a large range of triggers and organocatalysts, and appears a promising method for the introduction of signal response in materials, constituting a first step towards achieving communication between artificial chemical systems.Enzymes regulated by chemical signals are common in biology, but few such artificial catalysts exist. Here, the authors design an aniline catalyst that, when activated by a chemical trigger, catalyses formation of hydrazone-based gels, demonstrating signal response in a soft material. PMID- 29026082 TI - Targeted delivery of celastrol to mesangial cells is effective against mesangioproliferative glomerulonephritis. AB - Mesangial cells-mediated glomerulonephritis is a frequent cause of end-stage renal disease. Here, we show that celastrol is effective in treating both reversible and irreversible mesangioproliferative glomerulonephritis in rat models, but find that its off-target distributions cause severe systemic toxicity. We thus target celastrol to mesangial cells using albumin nanoparticles. Celastrol-albumin nanoparticles crosses fenestrated endothelium and accumulates in mesangial cells, alleviating proteinuria, inflammation, glomerular hypercellularity, and excessive extracellular matrix deposition in rat anti-Thy1.1 nephritis models. Celastrol-albumin nanoparticles presents lower drug accumulation than free celastrol in off-target organs and tissues, thereby minimizing celastrol-related systemic toxicity. Celastrol-albumin nanoparticles thus represents a promising treatment option for mesangioproliferative glomerulonephritis and similar glomerular diseases.Mesangial cell-mediated glomerulonephritis is a frequent cause of kidney disease. Here the authors show that celastrol loaded in albumin nanoparticles efficiently targets mesangial cells, and is effective in rat models. PMID- 29026084 TI - Binary temporal upconversion codes of Mn2+-activated nanoparticles for multilevel anti-counterfeiting. AB - Optical characteristics of luminescent materials, such as emission profile and lifetime, play an important role in their applications in optical data storage, document security, diagnostics, and therapeutics. Lanthanide-doped upconversion nanoparticles are particularly suitable for such applications due to their inherent optical properties, including large anti-Stokes shift, distinguishable spectroscopic fingerprint, and long luminescence lifetime. However, conventional upconversion nanoparticles have a limited capacity for information storage or complexity to prevent counterfeiting. Here, we demonstrate that integration of long-lived Mn2+ upconversion emission and relatively short-lived lanthanide upconversion emission in a particulate platform allows the generation of binary temporal codes for efficient data encoding. Precise control of the particle's structure allows the excitation feasible both under 980 and 808 nm irradiation. We find that the as-prepared Mn2+-doped nanoparticles are especially useful for multilevel anti-counterfeiting with high-throughput rate of authentication and without the need for complex time-gated decoding instrumentation.Luminescent materials that are capable of binary temporal coding are desirable for multilevel anti-counterfeiting. Here, the authors engineer nanoparticles that produce binary color codes on different timescales by combining the long-lived luminescence of Mn2+ with the relatively short-lived emission of lanthanides. PMID- 29026085 TI - EZH2 enables germinal centre formation through epigenetic silencing of CDKN1A and an Rb-E2F1 feedback loop. AB - The EZH2 histone methyltransferase is required for B cells to form germinal centers (GC). Here we show that EZH2 mediates GC formation through repression of cyclin-dependent kinase inhibitor CDKN1A (p21Cip1). Deletion of Cdkn1a rescues the GC reaction in Ezh2 -/- mice. Using a 3D B cell follicular organoid system that mimics the GC reaction, we show that depletion of EZH2 suppresses G1 to S phase transition of GC B cells in a Cdkn1a-dependent manner. GC B cells of Cdkn1a -/- Ezh2 -/- mice have high levels of phospho-Rb, indicating that loss of Cdkn1a enables progression of cell cycle. Moreover, the transcription factor E2F1 induces EZH2 during the GC reaction. E2f1 -/- mice manifest impaired GC responses, which is rescued by restoring EZH2 expression, thus defining a positive feedback loop in which EZH2 controls GC B cell proliferation by suppressing CDKN1A, enabling cell cycle progression with a concomitant phosphorylation of Rb and release of E2F1.The histone methyltransferase EZH2 silences genes by generating H3K27me3 marks. Here the authors use a 3D GC organoid and show EZH2 mediates germinal centre (GC) formation through epigenetic silencing of CDKN1A and release of cell cycle checkpoints. PMID- 29026086 TI - Picosecond orientational dynamics of water in living cells. AB - Cells are extremely crowded, and a central question in biology is how this affects the intracellular water. Here, we use ultrafast vibrational spectroscopy and dielectric-relaxation spectroscopy to observe the random orientational motion of water molecules inside living cells of three prototypical organisms: Escherichia coli, Saccharomyces cerevisiae (yeast), and spores of Bacillus subtilis. In all three organisms, most of the intracellular water exhibits the same random orientational motion as neat water (characteristic time constants ~9 and ~2 ps for the first-order and second-order orientational correlation functions), whereas a smaller fraction exhibits slower orientational dynamics. The fraction of slow intracellular water varies between organisms, ranging from ~20% in E. coli to ~45% in B. subtilis spores. Comparison with the water dynamics observed in solutions mimicking the chemical composition of (parts of) the cytosol shows that the slow water is bound mostly to proteins, and to a lesser extent to other biomolecules and ions.The cytoplasm's crowdedness leads one to expect that cell water is different from bulk water. By measuring the rotational motion of water molecules in living cells, Tros et al. find that apart from a small fraction of water solvating biomolecules, cell water has the same dynamics as bulk water. PMID- 29026087 TI - Ultra-strong nonlinear optical processes and trigonal warping in MoS2 layers. AB - Nonlinear optical processes, such as harmonic generation, are of great interest for various applications, e.g., microscopy, therapy, and frequency conversion. However, high-order harmonic conversion is typically much less efficient than low order, due to the weak intrinsic response of the higher-order nonlinear processes. Here we report ultra-strong optical nonlinearities in monolayer MoS2 (1L-MoS2): the third harmonic is 30 times stronger than the second, and the fourth is comparable to the second. The third harmonic generation efficiency for 1L-MoS2 is approximately three times higher than that for graphene, which was reported to have a large chi (3). We explain this by calculating the nonlinear response functions of 1L-MoS2 with a continuum-model Hamiltonian and quantum mechanical diagrammatic perturbation theory, highlighting the role of trigonal warping. A similar effect is expected in all other transition-metal dichalcogenides. Our results pave the way for efficient harmonic generation based on layered materials for applications such as microscopy and imaging.Harmonic generation is a nonlinear optical process occurring in a variety of materials; the higher orders generation is generally less efficient than lower orders. Here, the authors report that the third-harmonic is thirty times stronger than the second-harmonic in monolayer MoS2. PMID- 29026090 TI - Erratum: Observation of ultrahigh mobility surface states in a topological crystalline insulator by infrared spectroscopy. AB - A correction to this article has been published and is linked from the HTML version of this article. PMID- 29026088 TI - Characteristic rotational behaviors of rod-shaped cargo revealed by automated five-dimensional single particle tracking. AB - We report an automated single particle tracking technique for tracking the x, y, z coordinates, azimuthal and elevation angles of anisotropic plasmonic gold nanorod probes in live cells. These five spatial coordinates are collectively referred to as 5D. This method overcomes a long-standing challenge in distinguishing rotational motions from translational motions in the z-axis in differential interference contrast microscopy to result in full disclosure of nanoscale motions with high accuracy. Transferrin-coated endocytic gold nanorod cargoes initially undergo active rotational diffusion and display characteristic rotational motions on the membrane. Then as the cargoes being enclosed in clathrin-coated pits, they slow down the active rotation and experience a quiet period before they restore active rotational diffusion after fission and eventually being transported away from the original entry spots. Finally, the 3D trajectories and the accompanying rotational motions of the cargoes are resolved accurately to render the intracellular transport process in live cells.Distinguishing rotational motions from translational motions in the z-axis has been a long-standing challenge. Here the authors develop a five-dimensional single particle tracking method to detect rotational behaviors of nanocargos during clathrin-mediated endocytosis and intracellular transport. PMID- 29026092 TI - Response of microbial biomass and CO2-C loss to wetting patterns are temperature dependent in a semi-arid soil. AB - One of the greatest contemporary challenges in terrestrial ecology is to determine the impact of climate change on the world's ecosystems. Here we investigated how wetting patterns (frequency and intensity) and nutrient additions altered microbial biomass and CO2-C loss from a semi-arid soil. South western Australia is predicted to experience declining annual rainfall but increased frequency of summer rainfall events when soil is fallow. Agricultural soils (0-10 cm at 10 degrees C or 25 degrees C) received the same total amount of water (15 mL over 30 days) applied at different frequency; with either nil or added nitrogen and phosphorus. Smaller more frequent wetting applications resulted in less CO2-C loss (P < 0.001); with cumulative CO2-C loss 35% lower than a single wetting event. This coincided with increased microbial biomass C at 25 degrees C but a decline at 10 degrees C. Increasing nutrient availability decreased CO2-C loss only under a single larger wetting event. While bacterial and fungal abundance remained unchanged, archaeal abundance and laccase-like copper monooxidase gene abundance increased with more frequent wetting at 25 degrees C. Our findings suggest smaller more frequent summer rainfall may decrease CO2 emissions compared to infrequent larger events; and enhance microbial C use efficiency where sufficient background soil organic matter and nutrients are available. PMID- 29026091 TI - Observation of Contrary Thermo-responsive Trend for Single Crystal and Powder Samples in Mechano-, Thermo- and Solvato-responsive Luminescent Cubane [Ag4I4L4] Cluster. AB - A new silver(I) iodide cluster [Ag4I4(TMP)4] (TMP = tris(3-methylphenyl) phosphine) 1 shows triply stimuli-responsive luminescent chromism, namely, mechano-, thermo- and solvent-responsive chromism, which is isostructural to our previously reported [Cu4I4(TMP)4] 2 but shows quite different luminescence in response to the external stimuli. Especially, during the mechanical grinding, the relative intensities of HE and LE of 1 varied with a concomitant hypsochromic shift, and when the temperature was decreased from 300 to 5 K, unprecedented contrary thermo-responsive trend for single crystal and powered samples (blueshift of single crystals and redshift of powdered samples) was observed. These distinct characters of 1 should be due to the different molecular packing modes, metallic interactions and the unique character of Ag(I) ion. PMID- 29026093 TI - Crystal structure of the flexible tandem repeat domain of bacterial cellulose synthesis subunit C. AB - Bacterial cellulose (BC) is synthesized and exported through the cell membrane via a large protein complex (terminal complex) that consists of three or four subunits. BcsC is a little-studied subunit considered to export BC to the extracellular matrix. It is predicted to have two domains: a tetratrico peptide repeat (TPR) domain and a beta-barrelled outer membrane domain. Here we report the crystal structure of the N-terminal part of BcsC-TPR domain (Asp24-Arg272) derived from Enterobacter CJF-002. Unlike most TPR-containing proteins which have continuous TPR motifs, this structure has an extra alpha-helix between two clusters of TPR motifs. Five independent molecules in the crystal had three different conformations that varied at the hinge of the inserted alpha-helix. Such structural feature indicates that the inserted alpha-helix confers flexibility to the chain and changes the direction of the TPR super-helix, which was also suggested by structural analysis of BcsC-TPR (Asp24-Leu664) in solution by size exclusion chromatography-small-angle X-ray scattering. The flexibility at the alpha-helical hinge may play important role for exporting glucan chains. PMID- 29026094 TI - Electropermeabilization of Inner and Outer Cell Membranes with Microsecond Pulsed Electric Fields: Quantitative Study with Calcium Ions. AB - Microsecond pulsed electric fields (MUsPEF) permeabilize the plasma membrane (PM) and are widely used in research, medicine and biotechnology. For internal membranes permeabilization, nanosecond pulsed electric fields (nsPEF) are applied but this technology is complex to use. Here we report that the endoplasmic reticulum (ER) membrane can also be electropermeabilized by one 100 us pulse without affecting the cell viability. Indeed, using Ca2+ as a permeabilization marker, we observed cytosolic Ca2+ peaks in two different cell types after one 100 us pulse in a medium without Ca2+. Thapsigargin abolished these Ca2+ peaks demonstrating that the calcium is released from the ER. Moreover, IP3R and RyR inhibitors did not modify these peaks showing that they are due to the electropermeabilization of the ER membrane and not to ER Ca2+ channels activation. Finally, the comparison of the two cell types suggests that the PM and the ER permeabilization thresholds are affected by the sizes of the cell and the ER. In conclusion, this study demonstrates that usPEF, which are easier to control than nsPEF, can permeabilize internal membranes. Besides, MUsPEF interaction with either the PM or ER, can be an efficient tool to modulate the cytosolic calcium concentration and study Ca2+ roles in cell physiology. PMID- 29026095 TI - Alterations of regional homogeneity and functional connectivity in pituitary adenoma patients with visual impairment. AB - Evidences have showed that the deprivation of vision can considerably alter the resting-state activity both within and beyond the visual cortices. However, the functional changes of the brain cortices related to partially vision-deprivation are still largely unknown. Using resting-state functional MR imaging, we quantitatively evaluated the regional homogeneity(ReHo) and functional connectivity(FC) changes between 25 pituitary adenoma patients with visual impairment and 25 healthy controls(HCs). Compared with HCs, PAs exhibited significant increased ReHo in the left superior occipital gyrus, bilateral middle occipital gyrus and reduced ReHo in the left inferior frontal gyrus and right middle temporal gyrus. PAs also showed decreased FC between vision-related area and higher-order cognitive brain areas. Furthermore, we identified that in the PAs group the FC between the left V1 and left V3 increased while the FC between left V2v and left V5 significantly decreased, the FC between left V4 area and the V3, V2d area increased. In our study, we identified that the ReHo and FC were altered between the vision-related cortices and other higher-order cognitive cortices along with disorganized functional connectivity within the visual system in PAs with visual impairment. These findings may provide important insights to understand the plasticity of visual network. PMID- 29026096 TI - Plane of nutrition affects the phylogenetic diversity and relative abundance of transcriptionally active methanogens in the bovine rumen. AB - Methane generated during enteric fermentation in ruminant livestock species is a major contributor to global anthropogenic greenhouse gas emissions. A period of moderate feed restriction followed by ad libitum access to feed is widely applied in cattle management to exploit the animal's compensatory growth potential and reduce feed costs. In the present study, we utilised microbial RNA from rumen digesta samples to assess the phylogenetic diversity of transcriptionally active methanogens from feed-restricted and non-restricted animals. To determine the contribution of different rumen methanogens to methanogenesis during dietary restriction of cattle, we conducted high-throughput mcrA cDNA amplicon sequencing on an Illumina MiSeq and analysed both the abundance and phylogenetic origin of different mcrA cDNA sequences. When compared to their unrestricted contemporaries, in feed-restricted animals, the methanogenic activity, based on mcrA transcript abundance, of Methanobrevibacter gottschalkii clade increased while the methanogenic activity of the Methanobrevibacter ruminantium clade and members of the Methanomassiliicoccaceae family decreased. This study shows that the quantity of feed consumed can evoke large effects on the composition of methanogenically active species in the rumen of cattle. These data potentially have major implications for targeted CH4 mitigation approaches such as anti methanogen vaccines and/or tailored dietary management. PMID- 29026089 TI - A large scale hearing loss screen reveals an extensive unexplored genetic landscape for auditory dysfunction. AB - The developmental and physiological complexity of the auditory system is likely reflected in the underlying set of genes involved in auditory function. In humans, over 150 non-syndromic loci have been identified, and there are more than 400 human genetic syndromes with a hearing loss component. Over 100 non-syndromic hearing loss genes have been identified in mouse and human, but we remain ignorant of the full extent of the genetic landscape involved in auditory dysfunction. As part of the International Mouse Phenotyping Consortium, we undertook a hearing loss screen in a cohort of 3006 mouse knockout strains. In total, we identify 67 candidate hearing loss genes. We detect known hearing loss genes, but the vast majority, 52, of the candidate genes were novel. Our analysis reveals a large and unexplored genetic landscape involved with auditory function.The full extent of the genetic basis for hearing impairment is unknown. Here, as part of the International Mouse Phenotyping Consortium, the authors perform a hearing loss screen in 3006 mouse knockout strains and identify 52 new candidate genes for genetic hearing loss. PMID- 29026098 TI - HLA and Histo-Blood Group Antigen Expression in Human Pluripotent Stem Cells and their Derivatives. AB - One prerequisite for a successful clinical outcome of human pluripotent stem cell (hPSC) based therapies is immune compatibility between grafted cells/tissue and recipient. This study explores immune determinants of human embryonic stem cell lines (hESC) and induced human pluripotent stem cell (hiPSC) lines and hepatocyte and cardiomyocyte-like cells derived from these cells. HLA class I was expressed on all pluripotent hPSC lines which upon differentiation into hepatocyte-like cells was considerably reduced in contrast to cardiomyocyte-like cells which retained class I antigens. No HLA class II antigens were found in the pluripotent or differentiated cells. Histo-blood group carbohydrate antigens SSEA-3/SSEA 4/SSEA-5, Globo H, A, Lex/Ley and sialyl-lactotetra were expressed on all hPSC lines. Blood group AB(O)H antigen expression was in accordance with ABO genotype. Interestingly, only a subpopulation of A1O1 cells expressed A. During differentiation of hPSC, some histo-blood group antigens showed congruent alteration patterns while expression of other antigens differed between the cell lines. No systematic difference in the hPSC cell surface tissue antigen expression was detected. In conclusion, hPSC and their derivatives express cell surface antigens that may cause an immune rejection. Furthermore, tissue antigen expression must be established for each individual stem cell line prior to clinical application. PMID- 29026099 TI - Subcortical Facilitation of Behavioral Responses to Threat. AB - Behavioral responses to threat are critical to survival. Several cortical and subcortical brain regions respond selectively to threat. However, the relation of these neural responses and their underlying representations to behavior is unclear. We examined the contribution of lower-order subcortical representations to behavioral responses to threat in adult humans. In Experiments 1 and 2, participants viewed pairs of images presented to the same eye or to different eyes. We observed a monocular advantage, which indicates subcortical facilitation, for ancestral threats (snakes, spiders), but not for modern threats, positive images, or neutral images. In Experiment 3, we presented pairs of snakes or neutral images into the temporal or nasal hemifield. For snakes only, we observed a temporal hemifield advantage, which indicates facilitation by the retino-tectal subcortical pathway. These results advance the current understanding of processing of threat by adult humans by revealing the characteristics of behaviors driven by a lower-order neural mechanism that is specialized for the processing of ancestral threats. The results also contribute to ongoing debates concerning the biological generality of neural mechanisms for processing of complex, emotionally-relevant stimuli by providing evidence for conservation of lower-order neural mechanisms for processing of ancestral threats across both ontogeny and phylogeny. PMID- 29026097 TI - Chemosensing of honeybee parasite, Varroa destructor: Transcriptomic analysis. AB - Chemosensing is a primary sense in nature, however little is known about its mechanism in Chelicerata. As a model organism we used the mite Varroa destructor, a key parasite of honeybees. Here we describe a transcriptomic analysis of two physiological stages for the Varroa foreleg, the site of primary olfactory organ. The transcriptomic analysis revealed transcripts of chemosensory related genes belonging to several groups. These include Niemann-Pick disease protein, type C2 (NPC2), gustatory receptors (GRs), ionotropic receptors (IRs), sensory neuron membrane proteins (SNMPs) and odorant binding proteins (OBP). However, no insect odorant receptors (ORs) and odorant co-receptors (ORcos) were found. In addition, we identified a homolog of the most ancient IR co-receptor, IR25a, in Varroa as well as in other members of Acari. High expression of this transcript in the mite's forelegs, while not detectable in the other pairs of legs, suggests a function for this IR25a-like in Varroa chemosensing. PMID- 29026100 TI - A new semi-supervised learning model combined with Cox and SP-AFT models in cancer survival analysis. AB - Gene selection is an attractive and important task in cancer survival analysis. Most existing supervised learning methods can only use the labeled biological data, while the censored data (weakly labeled data) far more than the labeled data are ignored in model building. Trying to utilize such information in the censored data, a semi-supervised learning framework (Cox-AFT model) combined with Cox proportional hazard (Cox) and accelerated failure time (AFT) model was used in cancer research, which has better performance than the single Cox or AFT model. This method, however, is easily affected by noise. To alleviate this problem, in this paper we combine the Cox-AFT model with self-paced learning (SPL) method to more effectively employ the information in the censored data in a self-learning way. SPL is a kind of reliable and stable learning mechanism, which is recently proposed for simulating the human learning process to help the AFT model automatically identify and include samples of high confidence into training, minimizing interference from high noise. Utilizing the SPL method produces two direct advantages: (1) The utilization of censored data is further promoted; (2) the noise delivered to the model is greatly decreased. The experimental results demonstrate the effectiveness of the proposed model compared to the traditional Cox-AFT model. PMID- 29026102 TI - Fast identification of the conduction-type of nanomaterials by field emission technique. AB - There are more or less dopants or defects existing in nanomaterials, so they usually have different conduct-types even for the same substrate. Therefore, fast identification of the conduction-type of nanomaterials is very essential for their practical application in functional nanodevices. Here we use the field emission (FE) technique to research nanomaterials and establish a generalized Schottky-Nordheim (SN) model, in which an important parameter lambda (the image potential factor) is first introduced to describe the effective image potential. By regarding lambda as the criterion, their energy-band structure can be identified: (a) lambda = 1: metal; (b) 0.5 < lambda < 1: n-type semiconductor; (c) 0 < lambda < 0.5: p-type semiconductor. Moreover, this method can be utilized to qualitatively evaluate the doping-degree for a given semiconductor. We test numerically and experimentally a group of nanomaterial emitters and all results agree with our theoretical results very well, which suggests that our method based on FE measurements should be an ideal and powerful tool to fast ascertain the conduction-type of nanomaterials. PMID- 29026101 TI - Heterozygous RFX6 protein truncating variants are associated with MODY with reduced penetrance. AB - Finding new causes of monogenic diabetes helps understand glycaemic regulation in humans. To find novel genetic causes of maturity-onset diabetes of the young (MODY), we sequenced MODY cases with unknown aetiology and compared variant frequencies to large public databases. From 36 European patients, we identify two probands with novel RFX6 heterozygous nonsense variants. RFX6 protein truncating variants are enriched in the MODY discovery cohort compared to the European control population within ExAC (odds ratio = 131, P = 1 * 10-4). We find similar results in non-Finnish European (n = 348, odds ratio = 43, P = 5 * 10-5) and Finnish (n = 80, odds ratio = 22, P = 1 * 10-6) replication cohorts. RFX6 heterozygotes have reduced penetrance of diabetes compared to common HNF1A and HNF4A-MODY mutations (27, 70 and 55% at 25 years of age, respectively). The hyperglycaemia results from beta-cell dysfunction and is associated with lower fasting and stimulated gastric inhibitory polypeptide (GIP) levels. Our study demonstrates that heterozygous RFX6 protein truncating variants are associated with MODY with reduced penetrance.Maturity-onset diabetes of the young (MODY) is the most common subtype of familial diabetes. Here, Patel et al. use targeted DNA sequencing of MODY patients and large-scale publically available data to show that RFX6 heterozygous protein truncating variants cause reduced penetrance MODY. PMID- 29026103 TI - Erratum: Joining smallholder farmers' traditional knowledge with metric traits to select better varieties of Ethiopian wheat. 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- 29026104 TI - CETSA quantitatively verifies in vivo target engagement of novel RIPK1 inhibitors in various biospecimens. AB - The proof of target engagement (TE) is a key element for evaluating potential investment in drug development. The cellular thermal shift assay (CETSA) is expected to facilitate direct measurement of intracellular TE at all stages of drug development. However, there have been no reports of applying this technology to comprehensive animal and clinical studies. This report demonstrates that CETSA can not only quantitatively evaluate the drug-TE in mouse peripheral blood, but also confirm TE in animal tissues exemplified by using the receptor interacting protein 1 kinase (RIPK1) lead compound we have developed. Our established semi automated system allows evaluation of the structure-activity relationship using native RIPK1 in culture cell lines, and also enables estimation of drug occupancy ratio in mouse peripheral blood mononuclear cells. Moreover, optimized tissue homogenisation enables monitoring of the in vivo drug-TE in spleen and brain. Our results indicate that CETSA methodology will provide an efficient tool for preclinical and clinical drug development. PMID- 29026105 TI - MCPH1, mutated in primary microcephaly, is required for efficient chromosome alignment during mitosis. AB - MCPH1 gene, mutated in primary microcephaly, regulates cell progression into mitosis. While this role has been extensively investigated in the context of DNA damage, its function during unperturbed cell cycles has been given less attention. Here we have analyzed the dynamics of chromosome condensation and cell cycle progression in MCPH1 deficient cells under undamaging conditions. Our study demonstrates that chromosome condensation is uncoupled from cell cycle progression when MCPH1 function is lacking, resulting in cells that prematurely condense their chromosomes during mid G2-phase and delay decondensation at the completion of mitosis. However, mitosis onset occurs on schedule in MCPH1 deficient cells. We also revealed active Cdk1 to be mandatory for the premature onset of chromosome condensation during G2 and the maintenance of the condensed state thereafter. Interestingly, a novel cellular phenotype was observed while monitoring cell cycle progression in cells lacking MCPH1 function. Specifically, completion of chromosome alignment at the metaphase plate was significantly delayed. This deficiency reveals that MCPH1 is required for efficient chromosome biorientation during mitosis. PMID- 29026106 TI - Crumpling-based soft metamaterials: the effects of sheet pore size and porosity. AB - Crumpled-based materials are relatively easy to fabricate and show robust mechanical properties for practical applications, including meta-biomaterials design aimed for improved tissue regeneration. For such requests, however, the structure needs to be porous. We introduce a crumpled holey thin sheet as a robust bio-metamaterial and measure the mechanical response of a crumpled holey thin Mylar sheet as a function of the hole size and hole area fraction. We also study the formation of patterns of crease lines and ridges. The area fraction largely dominated the crumpling mechanism. We also show, the crumpling exponents slightly increases with increasing the hole area fraction and the total perimeter of the holes. Finally, hole edges were found to limit and guide the propagation of crease lines and ridges. PMID- 29026107 TI - Achilles tendon compositional and structural properties are altered after unloading by botox. AB - Tendon function and homeostasis rely on external loading. This study investigates the biological mechanisms behind tendon biomechanical function and how the mechanical performance is affected by reduced daily loading. The Achilles tendons of 16 weeks old female Sprague Dawley rats (n = 40) were unloaded for 5 weeks by inducing muscle paralysis with botulinum toxin injections in the right gastrocnemius and soleus muscles. The contralateral side was used as control. After harvest, the tendons underwent biomechanical testing to assess viscoelasticity (n = 30 rats) and small angle X-ray scattering to determine the structural properties of the collagen fibrils (n = 10 rats). Fourier transform infrared spectroscopy and histological staining (n = 10 rats) were performed to investigate the collagen and proteoglycan content. The results show that the stiffness increased in unloaded tendons, together with an increased collagen content. Creep and axial alignment of the collagen fibers were reduced. Stress relaxation increased whereas hysteresis was reduced in response to unloading with botox treatment. Our findings indicate that altered matrix deposition relies on mechanical loading to reorganize the newly formed tissue, without which the viscoelastic behavior is impaired. The results demonstrate that reduced daily loading deprives tendons of their viscoelastic properties, which could increase the risk of injury. PMID- 29026108 TI - RIFS: a randomly restarted incremental feature selection algorithm. AB - The advent of big data era has imposed both running time and learning efficiency challenges for the machine learning researchers. Biomedical OMIC research is one of these big data areas and has changed the biomedical research drastically. But the high cost of data production and difficulty in participant recruitment introduce the paradigm of "large p small n" into the biomedical research. Feature selection is usually employed to reduce the high number of biomedical features, so that a stable data-independent classification or regression model may be achieved. This study randomly changes the first element of the widely-used incremental feature selection (IFS) strategy and selects the best feature subset that may be ranked low by the statistical association evaluation algorithms, e.g. t-test. The hypothesis is that two low-ranked features may be orchestrated to achieve a good classification performance. The proposed Randomly re-started Incremental Feature Selection (RIFS) algorithm demonstrates both higher classification accuracy and smaller feature number than the existing algorithms. RIFS also outperforms the existing methylomic diagnosis model for the prostate malignancy with a larger accuracy and a lower number of transcriptomic features. PMID- 29026109 TI - Heterogeneous integration for on-chip quantum photonic circuits with single quantum dot devices. AB - Single-quantum emitters are an important resource for photonic quantum technologies, constituting building blocks for single-photon sources, stationary qubits, and deterministic quantum gates. Robust implementation of such functions is achieved through systems that provide both strong light-matter interactions and a low-loss interface between emitters and optical fields. Existing platforms providing such functionality at the single-node level present steep scalability challenges. Here, we develop a heterogeneous photonic integration platform that provides such capabilities in a scalable on-chip implementation, allowing direct integration of GaAs waveguides and cavities containing self-assembled InAs/GaAs quantum dots-a mature class of solid-state quantum emitter-with low-loss Si3N4 waveguides. We demonstrate a highly efficient optical interface between Si3N4 waveguides and single-quantum dots in GaAs geometries, with performance approaching that of devices optimized for each material individually. This includes quantum dot radiative rate enhancement in microcavities, and a path for reaching the non-perturbative strong-coupling regime.Effective use of single emitters in quantum photonics requires coherent emission, strong light-matter coupling, low losses and scalable fabrication. Here, Davanco et al. stride toward this goal by hybrid on-chip integration of Si3N4 waveguides and GaAs nanophotonic geometries with InAs quantum dots. PMID- 29026110 TI - A novel true random number generator based on a stochastic diffusive memristor. AB - The intrinsic variability of switching behavior in memristors has been a major obstacle to their adoption as the next generation of universal memory. On the other hand, this natural stochasticity can be valuable for hardware security applications. Here we propose and demonstrate a novel true random number generator utilizing the stochastic delay time of threshold switching in a Ag:SiO2 diffusive memristor, which exhibits evident advantages in scalability, circuit complexity, and power consumption. The random bits generated by the diffusive memristor true random number generator pass all 15 NIST randomness tests without any post-processing, a first for memristive-switching true random number generators. Based on nanoparticle dynamic simulation and analytical estimates, we attribute the stochasticity in delay time to the probabilistic process by which Ag particles detach from a Ag reservoir. This work paves the way for memristors in hardware security applications for the era of the Internet of Things.Memristors can switch between high and low electrical-resistance states, but the switching behaviour can be unpredictable. Here, the authors harness this unpredictability to develop a memristor-based true random number generator that uses the stochastic delay time of threshold switching. PMID- 29026111 TI - Distraction and Expressive Suppression Strategies in Regulation of High- and Low Intensity Negative Emotions. AB - The current study compared the effectiveness of distraction, an antecedent focused strategy that involves diverting an individual's attention away from affective terms, and expressive suppression, a response-focused strategy that involves inhibiting conscious emotion-expressive behavior during an emotionally aroused state, in the regulation of high- and low-intensity unpleasant stimuli, using event-related potentials (ERPs). Sixteen participants completed an emotion regulation experiment in which they passively viewed high- or low-intensity unpleasant images (view), solved a mathematical equation presented on high- or low-intensity negative images (distraction), or suppressed their emotional expression in response to high- or low-intensity unpleasant images (suppression). Their negative experiences after implementation of these strategies were rated by participants on a 1-9 scale. We mainly found that compared with expressive suppression, distraction yielded greater attenuation of the early phase of centro parietal LPP when the participants responded to high-intensity stimuli. In the low-intensity condition, distraction, but not expressive suppression, effectively decreased the early phase of LPP. The findings suggest that expressive suppression works as early as distraction in the high-intensity condition; more importantly, distraction is superior to expressive suppression in regulating negative emotion, which is influenced by emotional intensity. PMID- 29026112 TI - Engineering species-like barriers to sexual reproduction. AB - Controlling the exchange of genetic information between sexually reproducing populations has applications in agriculture, eradication of disease vectors, control of invasive species, and the safe study of emerging biotechnology applications. Here we introduce an approach to engineer a genetic barrier to sexual reproduction between otherwise compatible populations. Programmable transcription factors drive lethal gene expression in hybrid offspring following undesired mating events. As a proof of concept, we target the ACT1 promoter of the model organism Saccharomyces cerevisiae using a dCas9-based transcriptional activator. Lethal overexpression of actin results from mating this engineered strain with a strain containing the wild-type ACT1 promoter.Genetic isolation of a genetically modified organism represents a useful strategy for biocontainment. Here the authors use dCas9-VP64-driven gene expression to construct a 'species like' barrier to reproduction between two otherwise compatible populations. PMID- 29026113 TI - Highly efficient cellular cloning using Ferro-core Micropallet Arrays. AB - Advancing knowledge of biological mechanisms has come to depend upon genetic manipulation of cells and organisms, relying upon cellular cloning methods that remain unchanged for decades, are labor and time intensive, often taking many months to come to fruition. Thus, there is a pressing need for more efficient processes. We have adapted a newly developed micropallet array platform, termed the "ferro-core micropallet array", to dramatically improve and accelerate the process of isolating clonal populations of adherent cells from heterogeneous mixtures retaining the flexibility of employing a wide range of cytometric parameters for identifying colonies and cells of interest. Using transfected (retroviral oncogene or fluorescent reporter construct) rat 208 F cells, we demonstrated the capacity to isolate and expand pure populations of genetically manipulated cells via laser release and magnetic recovery of single micropallets carrying adherent microcolonies derived from single cells. This platform can be broadly applied to biological research, across the spectrum of molecular biology to cellular biology, involving fields such as cancer, developmental, and stem cell biology. The ferro-core micropallet array platform provides significant advantages over alternative sorting and cloning methods by eliminating the necessity for repetitive purification steps and increasing throughput by dramatically shortening the time to obtain clonally expanded cell colonies. PMID- 29026115 TI - Visual sensory stimulation interferes with people's ability to echolocate object size. AB - Echolocation is the ability to use sound-echoes to infer spatial information about the environment. People can echolocate for example by making mouth clicks. Previous research suggests that echolocation in blind people activates brain areas that process light in sighted people. Research has also shown that echolocation in blind people may replace vision for calibration of external space. In the current study we investigated if echolocation may also draw on 'visual' resources in the sighted brain. To this end, we paired a sensory interference paradigm with an echolocation task. We found that exposure to an uninformative visual stimulus (i.e. white light) while simultaneously echolocating significantly reduced participants' ability to accurately judge object size. In contrast, a tactile stimulus (i.e. vibration on the skin) did not lead to a significant change in performance (neither in sighted, nor blind echo expert participants). Furthermore, we found that the same visual stimulus did not affect performance in auditory control tasks that required detection of changes in sound intensity, sound frequency or sound location. The results suggest that processing of visual and echo-acoustic information draw on common neural resources. PMID- 29026114 TI - The driver landscape of sporadic chordoma. AB - Chordoma is a malignant, often incurable bone tumour showing notochordal differentiation. Here, we defined the somatic driver landscape of 104 cases of sporadic chordoma. We reveal somatic duplications of the notochordal transcription factor brachyury (T) in up to 27% of cases. These variants recapitulate the rearrangement architecture of the pathogenic germline duplications of T that underlie familial chordoma. In addition, we find potentially clinically actionable PI3K signalling mutations in 16% of cases. Intriguingly, one of the most frequently altered genes, mutated exclusively by inactivating mutation, was LYST (10%), which may represent a novel cancer gene in chordoma.Chordoma is a rare often incurable malignant bone tumour. Here, the authors investigate driver mutations of sporadic chordoma in 104 cases, revealing duplications in notochordal transcription factor brachyury (T), PI3K signalling mutations, and mutations in LYST, a potential novel cancer gene in chordoma. PMID- 29026116 TI - The Value of lncRNA NEAT1 as a Prognostic Factor for Survival of Cancer Outcome: A Meta-Analysis. AB - The present meta-analysis aimed to analyze available data to identify the prognostic role of NEAT1 in multiple carcinomas. A systematic search was performed by using several computerized databases from inception to June 7, 2017. The quantity of the publications was assessed according to MOOSE checklist. Pooled HRs with 95% CI was calculated to summarize the effect. A total of 12 studies with 3,262 cancer patients were pooled in the analysis to evaluate the prognostic value of NEAT1 in multiple tumors. High expression levels of NEAT1 were demonstrated to be associated with poor OS (HR = 1.71, 95%CI: 1.37-2.14, P < 0.001) and tumor progression (III/IV vs. I/II: HR 1.76, 95%CI: 1.40-2.21, P < 0.00001). Subgroup analysis showed that NEAT1 detection method (qRT-PCR) and sample size (more or less than 100) did not alter the predictive value of NEAT1 on OS in various cancers. According to the meta-regression results, the large heterogeneity of meta-analysis may be attributed to the differences of NEAT1 detection method. Furthermore, elevated NEAT1 expression significantly predicted lymph node metastasis (HR: 2.10, 95%CI: 1.32-3.33, P = 0.002) and distant metastasis (HR: 2.80, 95%CI: 1.60-4.91, P = 0.0003) respectively. The results indicate that NEAT1 expression level is a prognostic biomarker for OS and metastasis in general tumors. PMID- 29026117 TI - Involvement of the accumbal osteopontin-interacting transmembrane protein 168 in methamphetamine-induced place preference and hyperlocomotion in mice. AB - Chronic exposure to methamphetamine causes adaptive changes in brain, which underlie dependence symptoms. We have found that the transmembrane protein 168 (TMEM168) is overexpressed in the nucleus accumbens of mice upon repeated methamphetamine administration. Here, we firstly demonstrate the inhibitory effect of TMEM168 on methamphetamine-induced behavioral changes in mice, and attempt to elucidate the mechanism of this inhibition. We overexpressed TMEM168 in the nucleus accumbens of mice by using an adeno-associated virus vector (NAc TMEM mice). Methamphetamine-induced hyperlocomotion and conditioned place preference were attenuated in NAc-TMEM mice. Additionally, methamphetamine induced extracellular dopamine elevation was suppressed in the nucleus accumbens of NAc-TMEM mice. Next, we identified extracellular matrix protein osteopontin as an interacting partner of TMEM168, by conducting immunoprecipitation in cultured COS-7 cells. TMEM168 overexpression in COS-7 cells induced the enhancement of extracellular and intracellular osteopontin. Similarly, osteopontin enhancement was also observed in the nucleus accumbens of NAc-TMEM mice, in in vivo studies. Furthermore, the infusion of osteopontin proteins into the nucleus accumbens of mice was found to inhibit methamphetamine-induced hyperlocomotion and conditioned place preference. Our studies suggest that the TMEM168-regulated osteopontin system is a novel target pathway for the therapy of methamphetamine dependence, via regulating the dopaminergic function in the nucleus accumbens. PMID- 29026118 TI - Coherent coupling between Vanadyl Phthalocyanine spin ensemble and microwave photons: towards integration of molecular spin qubits into quantum circuits. AB - Electron spins are ideal two-level systems that may couple with microwave photons so that, under specific conditions, coherent spin-photon states can be realized. This represents a fundamental step for the transfer and the manipulation of quantum information. Along with spin impurities in solids, molecular spins in concentrated phases have recently shown coherent dynamics under microwave stimuli. Here we show that it is possible to obtain high cooperativity regime between a molecular Vanadyl Phthalocyanine (VOPc) spin ensemble and a high quality factor superconducting YBa2Cu3O7 (YBCO) coplanar resonator at 0.5 K. This demonstrates that molecular spin centers can be successfully integrated in hybrid quantum devices. PMID- 29026119 TI - Evaluating the importance of metamorphism in the foundering of continental crust. AB - The metamorphic conditions and mechanisms required to induce foundering in deep arc crust are assessed using an example of representative lower crust in SW New Zealand. Composite plutons of Cretaceous monzodiorite and gabbro were emplaced at ~1.2 and 1.8 GPa are parts of the Western Fiordland Orthogneiss (WFO); examples of the plutons are tectonically juxtaposed along a structure that excised ~25 km of crust. The 1.8 GPa Breaksea Orthogneiss includes suitably dense minor components (e.g. eclogite) capable of foundering at peak conditions. As the eclogite facies boundary has a positive dP/dT, cooling from supra-solidus conditions (T > 950 oC) at high-P should be accompanied by omphacite and garnet growth. However, a high monzodioritic proportion and inefficient metamorphism in the Breaksea Orthogneiss resulted in its positive buoyancy and preservation. Metamorphic inefficiency and compositional relationships in the 1.2 GPa Malaspina Pluton meant it was never likely to have developed densities sufficiently high to founder. These relationships suggest that the deep arc crust must have primarily involved significant igneous accumulation of garnet-clinopyroxene (in proportions >75%). Crustal dismemberment with or without the development of extensional shear zones is proposed to have induced foundering of excised cumulate material at P > 1.2 GPa. PMID- 29026120 TI - Co-inoculum of Beauveria brongniartii and B. bassiana shows in vitro different metabolic behaviour in comparison to single inoculums. AB - The use of entomopathogenic fungi for biocontrol of plant pests is recently receiving an increased interest due to the need of reducing the impact of agricultural practices on the environment. Biocontrol efficacy could be improved by co-inoculation of different microorganisms. However, interactions between the fungal species can trigger or depress the biocontrol activity. Co-inoculation of two entomopathogenic fungi (Beauveria bassiana and B. brongniartii) was performed in vitro to evaluate the effects of their joint behaviour on a range of different carbon sources in comparison to single inoculation. The two species showed a very different metabolic profile by Phenotype MicroArrayTM. B. bassiana showed a broader metabolism than B. brongniartii on a range of substrates. B. brongniartii showed a greater specificity in substrate utilization. Several carbon sources (L Asparagine, L-Aspartic Acid, L- Glutamic Acid, m- Erythritol, D-Melezitose, D Sorbitol) triggered the fungal metabolism in the co-inoculum. SSR markers and Real Time qPCR analysis showed that different substrates promoted either the growth of one or the other species, suggesting a form of interaction between the two fungi, related to their different ecological niches. The methodological approach that combines Phenotype MicroArrayTM and SSR genotyping appeared useful to assess the performance and potential competition of co-inoculated entomopathogenic fungi. PMID- 29026121 TI - White noise enhances new-word learning in healthy adults. AB - Research suggests that listening to white noise may improve some aspects of cognitive performance in individuals with lower attention. This study investigated the impact of white noise on new word learning in healthy young adults, and whether this effect was mediated by executive attention skills. Eighty participants completed a single training session to learn the names of twenty novel objects. The session comprised 5 learning phases, each followed by a recall test. A final recognition test was also administered. Half the participants listened to white noise during the learning phases, and half completed the learning in silence. The noise group demonstrated superior recall accuracy over time, which was not impacted by participant attentional capacity. Recognition accuracy was near ceiling for both groups. These findings suggest that white noise has the capacity to enhance lexical acquisition. PMID- 29026122 TI - Nanoparticulate vacuolar ATPase blocker exhibits potent host-targeted antiviral activity against feline coronavirus. AB - Feline infectious peritonitis (FIP), caused by a mutated feline coronavirus, is one of the most serious and fatal viral diseases in cats. The disease remains incurable, and there is no effective vaccine available. In light of the pathogenic mechanism of feline coronavirus that relies on endosomal acidification for cytoplasmic entry, a novel vacuolar ATPase blocker, diphyllin, and its nanoformulation are herein investigated for their antiviral activity against the type II feline infectious peritonitis virus (FIPV). Experimental results show that diphyllin dose-dependently inhibits endosomal acidification in fcwf-4 cells, alters the cellular susceptibility to FIPV, and inhibits the downstream virus replication. In addition, diphyllin delivered by polymeric nanoparticles consisting of poly(ethylene glycol)-block-poly(lactide-co-glycolide) (PEG-PLGA) further demonstrates an improved safety profile and enhanced inhibitory activity against FIPV. In an in vitro model of antibody-dependent enhancement of FIPV infection, diphyllin nanoparticles showed a prominent antiviral effect against the feline coronavirus. In addition, the diphyllin nanoparticles were well tolerated in mice following high-dose intravenous administration. This study highlights the therapeutic potential of diphyllin and its nanoformulation for the treatment of FIP. PMID- 29026124 TI - A Unified Framework for Modeling Continuum and Rarefied Gas Flows. AB - The momentum and heat transport in rarefied gas flows is known to deviate from the classical laws of Navier and Fourier in Navier-Stokes-Fourier (NSF) equations. A more sophisticated Nonlinear Coupled Constitutive Model (NCCM) has been derived from the Boltzmann equation to describe gaseous and thermal transport both in continuum and rarefied gas flows. We first develop a unified numerical framework for modeling continuum and rarefied flows based on the NCCM model both in two and three dimensions. Special treatment is given to the complex highly nonlinear transport equations for non-conserved variables that arise from the high degree of thermal nonequilibrium. For verification and validation, we apply the present scheme to a stiff problem of hypersonic gas flows around a 2D cylinder, a 3D sphere, and the Apollo configuration both in continuum and rarefied situations. The results show that the present unified framework yields solutions that are in better agreement with the benchmark and experimental data than are the NSF results in all studied cases of rarefied problems. Good agreement is observed between the present study and the NSF results for continuum cases. The results show that this study provides a unified framework for modeling continuum and rarefied gas flows. PMID- 29026123 TI - Music induced happy mood suppresses the neural responses to other's pain: Evidences from an ERP study. AB - In the current study, we explored the time course of processing other's pain under induced happy or sad moods. Event-related potentials (ERPs) were recorded when participants observing pictures showing others in painful or non-painful situations. Mood induction procedures were applied to the participants before the picture observation task. Happy and sad moods were induced by listening to about 10 minutes of music excerpts selected from the Chinese Affective Music System (CAMS). The ERP results revealed that the induced mood can influence the early automatic components N1, P2, and N2 but not the later top-down controlled components P3 and LPP. The difference of amplitudes elicited by painful and non painful stimuli was significantly different only in a sad mood but not in a happy mood, which indicates that comparing to a sad mood, the participants' ability to discriminate the painful stimuli from the non-painful stimuli was weakened in a happy mood. However, this reduction of sensitivity to other's pain in a happy mood does not necessarily reduce the tendency of prosocial behaviors. These findings offer psychophysiological evidences that people's moods can influence their empathic response towards other's pain. PMID- 29026126 TI - Bielectron vortices in two-dimensional Dirac semimetals. AB - Searching for new states of matter and unusual quasi-particles in emerging materials and especially low-dimensional systems is one of the major trends in contemporary condensed matter physics. Dirac materials, which host quasi particles which are described by ultrarelativistic Dirac-like equations, are of a significant current interest from both a fundamental and applied physics perspective. Here we show that a pair of two-dimensional massless Dirac-Weyl fermions can form a bound state independently of the sign of the inter-particle interaction potential, as long as this potential decays at large distances faster than Kepler's inverse distance law. This leads to the emergence of a new type of energetically favorable quasiparticle: bielectron vortices, which are double charged and reside at zero-energy. Their bosonic nature allows for condensation and may give rise to Majorana physics without invoking a superconductor. These novel quasi-particles arguably explain a range of poorly understood experiments in gated graphene structures at low doping.Two-dimensional Dirac semimetals are known to host fermionic excitations which can mimic physics usually found in ultrarelativistic quantum mechanics. Here, the authors unveil the existence of another type of quasiparticle, bielectron vortices, which are bosonic and may give rise to new types of condensates. PMID- 29026125 TI - Cell density-dependent differential proliferation of neural stem cells on omnidirectional nanopore-arrayed surface. AB - Recently, the importance of surface nanotopography in the determination of stem cell fate and behavior has been revealed. In the current study, we generated polystyrene cell-culture dishes with an omnidirectional nanopore arrayed surface (ONAS) (diameter: 200 nm, depth: 500 nm, center-to-center distance: 500 nm) and investigated the effects of nanotopography on rat neural stem cells (NSCs). NSCs cultured on ONAS proliferated better than those on the flat surface when cell density was low and showed less spontaneous differentiation during proliferation in the presence of mitogens. Interestingly, NSCs cultured on ONAS at clonal density demonstrated a propensity to generate neurospheres, whereas those on the flat surface migrated out, proliferated as individuals, and spread out to attach to the surface. However, the differential patterns of proliferation were cell density-dependent since the distinct phenomena were lost when cell density was increased. ONAS modulated cytoskeletal reorganization and inhibited formation of focal adhesion, which is generally observed in NSCs grown on flat surfaces. ONAS appeared to reinforce NSC-NSC interaction, restricted individual cell migration and prohibited NSC attachment to the nanopore surface. These data demonstrate that ONAS maintains NSCs as undifferentiated while retaining multipotency and is a better topography for culturing low density NSCs. PMID- 29026127 TI - Controlled delivery and minimally invasive imaging of stem cells in the lung. AB - Intratracheal delivery of stem cells into injured or diseased lungs can provide a variety of therapeutic and immunomodulatory effects for the treatment of acute lung injury and chronic lung disease. While the efficacy of this approach depends on delivering the proper cell dosage into the target region of the airway, tracking and analysis of the cells have been challenging, largely due to the limited understanding of cell transport and lack of suitable cell monitoring techniques. We report on the transport and deposition of intratracheally delivered stem cells as well as strategies to modulate the number of cells (e.g., dose), topographic distribution, and region-specific delivery in small (rodent) and large (porcine and human) lungs. We also developed minimally invasive imaging techniques for real-time monitoring of intratracheally delivered cells. We propose that this approach can facilitate the implementation of patient-specific cells and lead to enhanced clinical outcomes in the treatment of lung disease with cell-based therapies. PMID- 29026128 TI - Risk of malignancy in thyroid nodules: predictive value of puncture feeling of grittiness in the process of fine-needle aspiration. AB - Fine-needle aspiration cytology (FNAC) is widely used for diagnosing thyroid nodules. However, there has been no specific investigation about the puncture feeling of grittiness. The aim of the present study was to see if the puncture feeling of grittiness during fine-needle aspiration procedure, combined with standard FNAC, could improve the accuracy in diagnosing thyroid cancer. A total of one thousand five hundred and thirty-one thyroid FNAC specimens acquired between January 2013 and January 2017 were retrospectively retrieved. All cases underwent surgical intervention. The FNAC diagnoses and puncture feeling of grittiness were evaluated and compared with the results of final histopathological diagnoses. The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of diagnosis for thyroid nodules by FNAC alone, puncture feeling of grittiness alone, and the combination of FNAC plus grittiness were calculated respectively. The findings of our study suggest that puncture feeling of grittiness is a useful adjunct. Adding puncture feeling of grittiness to FNAC can significantly enhance the ability to differentiate malignant thyroid nodules from benign thyroid nodules. More importantly, we found that puncture feeling of grittiness is surprising trust-worthy in being near perfectly reproducible per individual radiologist, and among different operators. PMID- 29026129 TI - Hepatitis virus infection and age-related cataract. AB - This study was performed to investigate the relationships of hepatitis B (HBV) and hepatitis C virus (HCV) infection to age-related cataract, and to assess whether liver damage mediates the hepatitis-cataract association. This study analyzed data in the Korea National Health and Nutrition Examination Survey 2010 2012 on 10,037 participants aged >=40 years. We performed mediation analysis to address the contribution of serum markers of liver damage, high aspartate (AST, >49.9 IU/L) and alanine aminotransferase (ALT, >56.1 IU/L), to the relationships of HBV and HCV infection to cataract. Odds ratios (ORs) for nuclear and any cataract with HBV infection were 1.09 [95% confidence interval (95CI) = 1.02 1.16] and 1.07 (95CI = 1.00-1.14), respectively, compared to HBV uninfection; ORs with HCV infection were 1.35 (95CI = 1.18-1.55) and 1.40 (95CI = 1.12-1.76), respectively. High AST completely mediated the HBV infection-any cataract association. The significant relationships of HCV infection with nuclear and any cataract were formed only by their direct effects, not by mediation effects of high AST or ALT. HBV and HCV infection was significantly associated with nuclear and any cataract. High AST significantly mediates the effects of HBV infections on any cataract outcome, but the associations of HCV infection with nuclear and any cataract were not mediated by high AST or ALT. PMID- 29026130 TI - Effects of predator lipids on dinoflagellate defence mechanisms - increased bioluminescence capacity. AB - Short flashes of blue light (bioluminescence) from dinoflagellates can reduce copepod grazing of light-emitting cells. Other protective strategies against grazing are toxicity, reduced cell chain length and altered swimming patterns in different phytoplankton. Both toxicity and bioluminescence capacity in dinoflagellates decrease in copepod-free cultures, but toxin production can be restored in response to chemical alarm signals from copepods, copepodamides. Here we show that strains of the dinoflagellates Lingulodinium polyedra and Alexandrium tamarense, kept in culture for 14 and 9 years respectively, are capable of increasing their total bioluminescence capacity in response to copepodamides. The luminescence response to mechanical stimulation with air bubbles also increases significantly in L. polyedra after exposure to copepodamides. Effects on size, swimming speed and rate of change of direction in L. polyedra and A. tamarense were not detected, suggesting that post-encounter mechanisms such as bioluminescence and toxin production may constitute the dominating line of defence in these taxa. To our knowledge, this study provides the first evidence of changes in bioluminescence physiology as a response to chemical cues from natural enemies and emphasizes the importance of bioluminescence as an anti-grazing strategy. PMID- 29026131 TI - Mechanical stress induces elastic fibre disruption and cartilage matrix increase in ligamentum flavum. AB - Lumbar spinal stenosis (LSS) is one of the most frequent causes of low back pain and gait disturbance in the elderly. Ligamentum flavum (LF) hypertrophy is the main pathomechanism of LSS, but the reason for its occurrence is not clearly elucidated. In this study, we established a novel animal model of intervertebral mechanical stress concentration and investigated the biological property of the LF. The LF with mechanical stress concentration showed degeneration with elastic fibres disruption and cartilage matrix increase, which are similar to the findings in hypertrophied LF from patients with LSS. By contrast, decreased Col2a1 expression was found in the LF at fixed levels, in which mechanical stress was strongly reduced. These findings indicate that mechanical stress plays a crucial role in LF hypertrophy through cartilage matrix increase. The findings also suggest that fusion surgery, which eliminates intervertebral instability, may change the property of the LF and lead to the relief of patients' symptoms. PMID- 29026133 TI - Morphology and mechanics of fungal mycelium. AB - We study a unique biomaterial developed from fungal mycelium, the vegetative part and the root structure of fungi. Mycelium has a filamentous network structure with mechanics largely controlled by filament elasticity and branching, and network density. We report the morphological and mechanical characterization of mycelium through an integrated experimental and computational approach. The monotonic mechanical behavior of the mycelium is non-linear both in tension and compression. The material exhibits considerable strain hardening before rupture under tension, it mimics the open cell foam behavior under compression and exhibits hysteresis and the Mullins effect when subjected to cyclic loading. Based on our morphological characterization and experimental observations, we develop and validate a multiscale fiber network-based model for the mycelium which reproduces the tensile and compressive behavior of the material. PMID- 29026132 TI - Evidence of Early-Stage Selection on EPAS1 and GPR126 Genes in Andean High Altitude Populations. AB - The aim of this study is to identify genetic variants that harbour signatures of recent positive selection and may facilitate physiological adaptations to hypobaric hypoxia. To achieve this, we conducted whole genome sequencing and lung function tests in 19 Argentinean highlanders (>3500 m) comparing them to 16 Native American lowlanders. We developed a new statistical procedure using a combination of population branch statistics (PBS) and number of segregating sites by length (nSL) to detect beneficial alleles that arose since the settlement of the Andes and are currently present in 15-50% of the population. We identified two missense variants as significant targets of selection. One of these variants, located within the GPR126 gene, has been previously associated with the forced expiratory volume/forced vital capacity ratio. The other novel missense variant mapped to the EPAS1 gene encoding the hypoxia inducible factor 2alpha. EPAS1 is known to be the major selection candidate gene in Tibetans. The derived allele of GPR126 is associated with lung function in our sample of highlanders (p < 0.05). These variants may contribute to the physiological adaptations to hypobaric hypoxia, possibly by altering lung function. The new statistical approach might be a useful tool to detect selected variants in population studies. PMID- 29026134 TI - MCT1 and MCT4 Expression and Lactate Flux Activity Increase During White and Brown Adipogenesis and Impact Adipocyte Metabolism. AB - Adipose tissue takes up glucose and releases lactate, thereby contributing significantly to systemic glucose and lactate homeostasis. This implies the necessity of upregulation of net acid and lactate flux capacity during adipocyte differentiation and function. However, the regulation of lactate- and acid/base transporters in adipocytes is poorly understood. Here, we tested the hypothesis that adipocyte thermogenesis, browning and differentiation are associated with an upregulation of plasma membrane lactate and acid/base transport capacity that in turn is important for adipocyte metabolism. The mRNA and protein levels of the lactate-H+ transporter MCT1 and the Na+,HCO3- cotransporter NBCe1 were upregulated in mouse interscapular brown and inguinal white adipose tissue upon cold induction of thermogenesis and browning. MCT1, MCT4, and NBCe1 were furthermore strongly upregulated at the mRNA and protein level upon differentiation of cultured pre-adipocytes. Adipocyte differentiation was accompanied by increased plasma membrane lactate flux capacity, which was reduced by MCT inhibition and by MCT1 knockdown. Finally, in differentiated brown adipocytes, glycolysis (assessed as ECAR), and after noradrenergic stimulation also oxidative metabolism (OCR), was decreased by MCT inhibition. We suggest that upregulation of MCT1- and MCT4-mediated lactate flux capacity and NBCe1-mediated HCO3-/pH homeostasis are important for the physiological function of mature adipocytes. PMID- 29026135 TI - Interventions for treating displaced intracapsular femoral neck fractures in the elderly: a Bayesian network meta-analysis of randomized controlled trials. AB - Displaced intracapsular femoral neck (AO type 31 B2/3) fractures have various treatments, including internal fixation (IF), unipolar uncemented hemiarthroplasty (HA), bipolar uncemented HA, unipolar cemented HA, bipolar cemented HA, uncemented total hip replacement (THR), and cemented THR. Systematic literature retrieval was performed from the databases to compare them in a network meta-analysis. Forty studies (85 arms) containing 6141 patients were included. Overall, our network meta-analysis rank the orders of 7 procedures in reoperation, mortality, dislocation and infection, which indicates that IF may provide the highest reoperation incidence, unipolar cemented HA may provide the lowest reoperation incidence; uncemented THR contributes the highest dislocation incidence; and bipolar uncemented HA provides the lowest infection incidence. No differences in mortality were observed among the treatments. This conclusion is indirect; higher-quality direct comparisons are required. PMID- 29026136 TI - Effective purifying selection in ancient asexual oribatid mites. AB - Sex is beneficial in the long term because it can prevent mutational meltdown through increased effectiveness of selection. This idea is supported by empirical evidence of deleterious mutation accumulation in species with a recent transition to asexuality. Here, we study the effectiveness of purifying selection in oribatid mites which have lost sex millions of years ago and diversified into different families and species while reproducing asexually. We compare the accumulation of deleterious nonsynonymous and synonymous mutations between three asexual and three sexual lineages using transcriptome data. Contrasting studies of young asexual lineages, we find evidence for strong purifying selection that is more effective in asexual as compared to sexual oribatid mite lineages. Our results suggest that large populations likely sustain effective purifying selection and facilitate the escape of mutational meltdown in the absence of sex. Thus, sex per se is not a prerequisite for the long-term persistence of animal lineages.Asexual reproduction is thought to be an evolutionary dead end in eukaryotes because deleterious mutations will not be purged effectively. Here, Brandt and colleagues show that anciently asexual oribatid mites in fact have reduced accumulation of deleterious mutations compared to their sexual relatives. PMID- 29026138 TI - Reproduction of an azooxanthellate coral is unaffected by ocean acidification. AB - Anthropogenic carbon dioxide (CO2) emissions and consequent ocean acidification (OA) are projected to have extensive consequences on marine calcifying organisms, including corals. While the effects of OA on coral calcification are well documented, the response of reproduction is still poorly understood since no information are reported for temperate corals. Here we investigate for the first time the influence of OA on sexual reproduction of the temperate azooxanthellate solitary scleractinian Leptopsammia pruvoti transplanted along a natural pCO2 gradient at a Mediterranean CO2 vent. After 3 months, future projection of pH levels did not influence the germ cell production, gametogenesis and embryogenesis in this azooxanthellate coral. These findings suggest that reproductive potential may be quite tolerant to decreasing pH, with implications for ecosystem function and services in a changing ocean. PMID- 29026137 TI - Opiate use inhibits TLR9 signaling pathway in vivo: possible role in pathogenesis of HIV-1 infection. AB - The molecular mechanism of opiate use promoting HIV-1 infection is not fully understood. TLR9 is expressed in many immune cells, including monocytes, macrophages, which can recognize viruses and viral products and consequently induce the production of antiviral factors and initiate immune responses. Previous studies have shown that chronic viral infections can overcome and impair TLR9 pathway. We aimed to explore whether opiate use enhances HIV infection through inhibition of TLR9 pathway via a population-based study. A total of 200 subjects were enrolled and divided into four groups as follows: Opiate+ HIV+ (50), Opiate- HIV+ (50), Opiate+ HIV- (50), and healthy control (Opiate- HIV-, 50). All HIV-infected subjects did not receive antiretroviral therapy while they were enrolled in the study. The results showed that opiate use was associated with higher viral load and lower CD4+ T cell count. Opiate use alone led to lower expression of TLR9, IRF7, and IFN-alpha at the protein level in PBMCs. Combined with HIV-1 infection, opiate use resulted in lower expression of MyD88, ISG56, and MxA. In addition, morphine treatment promoted HIV-1 replication in macrophages via inhibition of TLR9 pathway. Our data reveal that opiate use plays a cofactor role in pathogenesis of HIV-1 infection through inhibition of TLR9 pathway. PMID- 29026140 TI - Embroidered Copper Microwire Current Collector for Improved Cycling Performance of Silicon Anodes in Lithium-Ion Batteries. AB - Si holds great promise as an alloying anode material for Li-ion batteries with improved energy density because of its high theoretical specific capacity and favorable operation voltage range. However, the large volume expansion of Si during electrochemical reaction with Li and the associated adverse effects strongly limit its prospect for application. Here, we report on the use of three dimensional instead of flat current collectors for high-capacity Si anodes in an attempt to mitigate the loss of electrical contact of active electrode regions as a result of structural disintegration with cycling. The current collectors were produced by technical embroidery and consist of interconnected Cu wires of diameter <150 um. In comparison to Si/Li cells using a conventional Cu foil current collector, the embroidered microwire network-based cells show much enhanced capacity and reversibility due to a higher degree of tolerance to cycling. PMID- 29026139 TI - Partial volume correction for PET quantification and its impact on brain network in Alzheimer's disease. AB - Amyloid positron emission tomography (PET) imaging is a valuable tool for research and diagnosis in Alzheimer's disease (AD). Partial volume effects caused by the limited spatial resolution of PET scanners degrades the quantitative accuracy of PET image. In this study, we have applied a method to evaluate the impact of a joint-entropy based partial volume correction (PVC) technique on brain networks learned from a clinical dataset of AV-45 PET image and compare network properties of both uncorrected and corrected image-based brain networks. We also analyzed the region-wise SUVRs of both uncorrected and corrected images. We further performed classification tests on different groups using the same set of algorithms with same parameter settings. PVC has sometimes been avoided due to increased noise sensitivity in image registration and segmentation, however, our results indicate that appropriate PVC may enhance the brain network structure analysis for AD progression and improve classification performance. PMID- 29026141 TI - Combined skin and muscle vaccination differentially impact the quality of effector T cell functions: the CUTHIVAC-001 randomized trial. AB - Targeting of different tissues via transcutaneous (TC), intradermal (ID) and intramuscular (IM) injection has the potential to tailor the immune response to DNA vaccination. In this Phase I randomised controlled clinical trial in HIV-1 negative volunteers we investigate whether the site and mode of DNA vaccination influences the quality of the cellular immune responses. We adopted a strategy of concurrent immunization combining IM injection with either ID or TC administration. As a third arm we assessed the response to IM injection administered with electroporation (EP). The DNA plasmid encoded a MultiHIV B clade fusion protein designed to induce cellular immunity. The vaccine and regimens were well tolerated. We observed differential shaping of vaccine induced virus-specific CD4 + and CD8 + cell-mediated immune responses. DNA given by IM + EP promoted strong IFN-gamma responses and potent viral inhibition. ID + IM without EP resulted in a similar pattern of response but of lower magnitude. By contrast TC + IM (without EP) shifted responses towards a more Th-17 dominated phenotype, associated with mucosal and epidermal protection. Whilst preliminary, these results offer new perspectives for differential shaping of desired cellular immunity required to fight the wide range of complex and diverse infectious diseases and cancers. PMID- 29026142 TI - Stochastic resonance at criticality in a network model of the human cortex. AB - Stochastic resonance is a phenomenon in which noise enhances the response of a system to an input signal. The brain is an example of a system that has to detect and transmit signals in a noisy environment, suggesting that it is a good candidate to take advantage of stochastic resonance. In this work, we aim to identify the optimal levels of noise that promote signal transmission through a simple network model of the human brain. Specifically, using a dynamic model implemented on an anatomical brain network (connectome), we investigate the similarity between an input signal and a signal that has traveled across the network while the system is subject to different noise levels. We find that non zero levels of noise enhance the similarity between the input signal and the signal that has traveled through the system. The optimal noise level is not unique; rather, there is a set of parameter values at which the information is transmitted with greater precision, this set corresponds to the parameter values that place the system in a critical regime. The multiplicity of critical points in our model allows it to adapt to different noise situations and remain at criticality. PMID- 29026143 TI - Translesion synthesis DNA polymerase eta exhibits a specific RNA extension activity and a transcription-associated function. AB - Polymerase eta (Poleta) is a low fidelity translesion synthesis DNA polymerase that rescues damage-stalled replication by inserting deoxy-ribonucleotides opposite DNA damage sites resulting in error-free or mutagenic damage bypass. In this study we identify a new specific RNA extension activity of Poleta of Saccharomyces cerevisiae. We show that Poleta is able to extend RNA primers in the presence of ribonucleotides (rNTPs), and that these reactions are an order of magnitude more efficient than the misinsertion of rNTPs into DNA. Moreover, during RNA extension Poleta performs error-free bypass of the 8-oxoguanine and thymine dimer DNA lesions, though with a 103 and 102-fold lower efficiency, respectively, than it synthesizes opposite undamaged nucleotides. Furthermore, in vivo experiments demonstrate that the transcription of several genes is affected by the lack of Poleta, and that Poleta is enriched over actively transcribed regions. Moreover, inactivation of its polymerase activity causes similar transcription inhibition as the absence of Poleta. In summary, these results suggest that the new RNA synthetic activity of Poleta can have in vivo relevance. PMID- 29026144 TI - Increased NK cell immunity in a transgenic mouse model of NKp46 overexpression. AB - Natural Killer (NK) cells employ activating receptors like the Natural Cytotoxicity Receptors (NCRs: NKp30, NKp44 and NKp46), of which only NKp46 has a mouse orthologue (Ncr1), to eliminate abnormal cells. NKp46/Ncr1 is considered a selective marker for NK cells, although it is also found on a subset of ILCs, where it appears to be without function. The influenza virus hemagglutinin (HA) was the first ligand identified for Ncr1/NKp46 followed by other viral, bacterial and even fungal ligands. NKp46/Ncr1 also recognizes unknown self and tumor ligands. Here we describe the generation of a transgenic mouse where the Ncr1 gene is expressed in the Rosa locus, preceded by a floxed stop sequence allowing Ncr1/NKp46 expression in various tissues upon crossing with Cre transgenic mouse lines. Surprisingly, while several crossings were attempted, Ncr1 overexpression was successful only where cre recombinase expression was dependent on the Ncr1 promoter. Ncr1 overexpression in NK cells increased NK cell immunity in two hallmark Ncr1 related pathologies, influenza virus infection and B16 melanoma. These data suggest that increasing NK cell cytotoxicity by enforced NKp46/Ncr1 expression serves as a potential therapeutic opportunity for the treatment of various pathologies, and in immunotherapy. PMID- 29026145 TI - Cibinetide dampens innate immune cell functions thus ameliorating the course of experimental colitis. AB - Two distinct forms of the erythropoietin receptor (EPOR) mediate the cellular responses to erythropoietin (EPO) in different tissues. EPOR homodimers signal to promote the maturation of erythroid progenitor cells. In other cell types, including immune cells, EPOR and the beta-common receptor (CD131) form heteromers (the innate repair receptor; IRR), and exert tissue protective effects. We used dextran sulphate sodium (DSS) to induce colitis in C57BL/6 N mice. Once colitis was established, mice were treated with solvent, EPO or the selective IRR agonist cibinetide. We found that both cibinetide and EPO ameliorated the clinical course of experimental colitis in mice, resulting in improved weight gain and survival. Correspondingly, DSS-exposed mice treated with cibinetide or EPO displayed preserved tissue integrity due to reduced infiltration of myeloid cells and diminished production of pro-inflammatory disease mediators including cytokines, chemokines and nitric oxide synthase-2. Experiments using LPS-activated primary macrophages revealed that the anti-inflammatory effects of cibinetide were dependent on CD131 and JAK2 functionality and were mediated via inhibition of NF kappaB subunit p65 activity. Cibinetide activation of the IRR exerts potent anti inflammatory effects, especially within the myeloid population, reduces disease activity and mortality in mice. Cibinetide thus holds promise as novel disease modifying therapeutic of inflammatory bowel disease. PMID- 29026146 TI - Multiple Approaches Detect the Presence of Fungi in Human Breastmilk Samples from Healthy Mothers. AB - Human breastmilk contains a variety of bacteria that are transmitted to the infant and have been suggested to contribute to gut microbiota development and immune maturation. However, the characterization of fungal organisms in milk from healthy mothers is currently unknown although their presence has been reported in the infant gut and also in milk from other mammals. Breastmilk samples from healthy lactating mothers (n = 65) within 1 month after birth were analyzed. Fungal presence was assessed by different techniques, including microscopy, growth and identification of cultured isolates, fungal load estimation by qPCR, and fungal composition using 28S rRNA gene high-throughput sequencing. In addition, milk macronutrients and human somatic cells were quantified by spectrophotometry and cytometry. qPCR data showed that 89% of samples had detectable levels of fungal DNA, at an estimated median load of 3,5 * 105 cells/ml, potentially including both viable and non-viable fungi. Using different culture media, 33 strains were isolated and identified, confirming the presence of viable fungal species. Pyrosequencing results showed that the most common genera were Malassezia (44%), followed by Candida (19%) and Saccharomyces (12%). Yeast cells were observed by fluorescence microscopy. Future work should study the origin of these fungi and their potential contribution to infant health. PMID- 29026147 TI - Vascular Endothelial Growth Factor in Cartilage Development and Osteoarthritis. AB - Genome wide studies indicate that vascular endothelial growth factor A (VEGF) is associated with osteoarthritis (OA), and increased VEGF expression correlates with increased disease severity. VEGF is also a chondrocyte survival factor during development and essential for bone formation, skeletal growth and postnatal homeostasis. This raises questions of how the important embryonic and postnatal functions of VEGF can be reconciled with an apparently destructive role in OA. Addressing these questions, we find that VEGF acts as a survival factor in growth plate chondrocytes during development but only up until a few weeks after birth in mice. It is also required for postnatal differentiation of articular chondrocytes and the timely ossification of bones in joint regions. In surgically induced knee OA in mice, a model of post-traumatic OA in humans, increased expression of VEGF is associated with catabolic processes in chondrocytes and synovial cells. Conditional knock-down of Vegf attenuates induced OA. Intra articular anti-VEGF antibodies suppress OA progression, reduce levels of phosphorylated VEGFR2 in articular chondrocytes and synovial cells and reduce levels of phosphorylated VEGFR1 in dorsal root ganglia. Finally, oral administration of the VEGFR2 kinase inhibitor Vandetanib attenuates OA progression. PMID- 29026149 TI - The folding, stability and function of lactose permease differ in their dependence on bilayer lipid composition. AB - Lipids play key roles in Biology. Mechanical properties of the lipid bilayer influence their neighbouring membrane proteins, however it is unknown whether different membrane protein properties have the same dependence on membrane mechanics, or whether mechanics are tuned to specific protein processes of the protein. We study the influence of lipid lateral pressure and electrostatic effects on the in vitro reconstitution, folding, stability and function of a representative of the ubiquitous major facilitator transporter superfamily, lactose permease. Increasing the outward chain lateral pressure in the bilayer, through addition of lamellar phosphatidylethanolamine lipids, lowers lactose permease folding and reconstitution yields but stabilises the folded state. The presence of phosphatidylethanolamine is however required for correct folding and function. An increase in headgroup negative charge through the addition of phosphatidylglycerol lipids favours protein reconstitution but is detrimental to topology and function. Overall the in vitro folding, reconstitution, topology, stability and function of lactose permease are found to have different dependences on bilayer composition. A regime of lipid composition is found where all properties are favoured, even if suboptimal. This lays ground rules for rational control of membrane proteins in nanotechnology and synthetic biology by manipulating global bilayer properties to tune membrane protein behaviour. PMID- 29026148 TI - Exclusive and Combined Use of Statins and Aspirin and the Risk of Pancreatic Cancer: a Case-Control Study. AB - Data on the association between aspirin and statin use and Pancreatic Ductal AdenoCarcinoma (PDAC) risk are conflicting. These drugs are often co-prescribed, but no studies evaluated the potential combined or confounding effect of the two at the same time. We aimed to investigate the association between aspirin and statin exclusive and combined use and PDAC occurrence. Data on environmental factors, family and medical history were screened in a case-control study. PDAC cases were matched to controls for age and gender. Power calculation performed ahead. Odds ratios (OR) and 95% confidence intervals(CI) were obtained from multivariable logistic regression analysis. In 408 PDAC patients and 816 matched controls, overall statin (OR 0.61; 95%CI,0.43-0.88), but not aspirin use was associated to reduced PDAC risk. Compared to non-users, exclusive statin (OR 0.51; 95%CI,0.32-0.80) and exclusive aspirin users (OR 0.64; 95%CI,0.40-1.01) had reduced PDAC risk. Concomitant statin and aspirin use did not further reduce the risk compared with statin use alone and no interaction was evident. Statin protective association was dose-dependent, and consistent in most subgroups, being stronger in smokers, elderly, obese and non-diabetic patients. The present study suggests that statin use is associated to reduced PDAC risk, supporting a chemopreventive action of statins on PDAC. PMID- 29026150 TI - Essential role of the Na+-Ca2+ exchanger (NCX) in glutamate-enhanced cell survival in cardiac cells exposed to hypoxia/reoxygenation. AB - Myocardial ischemia culminates in ATP production impairment, ionic derangement and cell death. The provision of metabolic substrates during reperfusion significantly increases heart tolerance to ischemia by improving mitochondrial performance. Under normoxia, glutamate contributes to myocardial energy balance as substrate for anaplerotic reactions, and we demonstrated that the Na+/Ca2+ exchanger1 (NCX1) provides functional support for both glutamate uptake and use for ATP synthesis. Here we investigated the role of NCX1 in the potential of glutamate to improve energy metabolism and survival of cardiac cells subjected to hypoxia/reoxygenation (H/R). Specifically, in H9c2-NCX1 myoblasts, ATP levels, mitochondrial activities and cell survival were significantly compromised after H/R challenge. Glutamate supplementation at the onset of the reoxygenation phase significantly promoted viability, improved mitochondrial functions and normalized the H/R-induced increase of NCX1 reverse-mode activity. The benefits of glutamate were strikingly lost in H9c2-WT (lacking NCX1 expression), or in H9c2-NCX1 and rat cardiomyocytes treated with either NCX or Excitatory Amino Acid Transporters (EAATs) blockers, suggesting that a functional interplay between these transporters is critically required for glutamate-induced protection. Collectively, these results revealed for the first time the key role of NCX1 for the beneficial effects of glutamate against H/R-induced cell injury. PMID- 29026151 TI - Synthesis and Absorption Properties of Hollow-spherical Dy2Cu2O5 via a Coordination Compound Method with [DyCu(3,4-pdc)2(OAc)(H2O)2]*10.5H2O Precursor. AB - Dy2Cu2O5 nanoparticles with perovskite structures were synthesized via a simple solution method (SSM) and a coordination compound method (CCM) using [DyCu(3,4 pdc)2(OAc)(H2O)2]*10.5H2O (pdc = 3,4-pyridinedicarboxylic acid) as precursor. The as-prepared samples were structurally characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), x-ray photoelectron spectroscopy (XPS) and standard Brunauer Emmett-Teller (BET) methods. Compared to the aggregated hexahedral particles prepared by SSM, the Dy2Cu2O5 of CCM showed hollow spherical morphology composed of nanoparticles with average diameters of 100-150 nm and a larger special surface area up to 36.5 m2/g. The maximum adsorption capacity (Q m ) of CCM for malachite green (MG) determined by the adsorption isotherms with different adsorbent dosages of 0.03-0.07 g, reached 5.54 g/g at room temperature. The thermodynamic parameters of adsorption process were estimated by the fittings of the isotherms at 298, 318, and 338 K, and the kinetic parameters were obtained from the time-dependent adsorption isotherms. The results revealed that the adsorption process followed a pseudo-second-order reaction. Finally, the adsorption mechanism was studied using a competitive ion (CI) experiments, and the highly efficient selective adsorption was achieved due to strong O-Cu and O Dy coordination bonds between Dy2Cu2O5 and MG. PMID- 29026152 TI - Genetic and Epigenetic Profiling Reveals EZH2-mediated Down Regulation of OCT-4 Involves NR2F2 during Cardiac Differentiation of Human Embryonic Stem Cells. AB - Human embryonic (hES) stem cells are widely used as an in vitro model to understand global genetic and epigenetic changes that occur during early embryonic development. In-house derived hES cells (KIND1) were subjected to directed differentiation into cardiovascular progenitors (D12) and beating cardiomyocytes (D20). Transcriptome profiling of undifferentiated (D0) and differentiated (D12 and 20) cells was undertaken by microarray analysis. ChIP and sequential ChIP were employed to study role of transcription factor NR2F2 during hES cells differentiation. Microarray profiling showed that an alteration of about 1400 and 1900 transcripts occurred on D12 and D20 respectively compared to D0 whereas only 19 genes were altered between D12 and D20. This was found associated with corresponding expression pattern of chromatin remodelers, histone modifiers, miRNAs and lncRNAs marking the formation of progenitors and cardiomyocytes on D12 and D20 respectively. ChIP sequencing and sequential ChIP revealed the binding of NR2F2 with polycomb group member EZH2 and pluripotent factor OCT4 indicating its crucial involvement in cardiac differentiation. The study provides a detailed insight into genetic and epigenetic changes associated with hES cells differentiation into cardiac cells and a role for NR2F2 is deciphered for the first time to down-regulate OCT-4 via EZH2 during cardiac differentiation. PMID- 29026153 TI - Climate change-induced increases in precipitation are reducing the potential for solar ultraviolet radiation to inactivate pathogens in surface waters. AB - Climate change is accelerating the release of dissolved organic matter (DOM) to inland and coastal waters through increases in precipitation, thawing of permafrost, and changes in vegetation. Our modeling approach suggests that the selective absorption of ultraviolet radiation (UV) by DOM decreases the valuable ecosystem service wherein sunlight inactivates waterborne pathogens. Here we highlight the sensitivity of waterborne pathogens of humans and wildlife to solar UV, and use the DNA action spectrum to model how differences in water transparency and incident sunlight alter the ability of UV to inactivate waterborne pathogens. A case study demonstrates how heavy precipitation events can reduce the solar inactivation potential in Lake Michigan, which provides drinking water to over 10 million people. These data suggest that widespread increases in DOM and consequent browning of surface waters reduce the potential for solar UV inactivation of pathogens, and increase exposure to infectious diseases in humans and wildlife. PMID- 29026154 TI - Associations of interactions between NLRP3 SNPs and HLA mismatch with acute and extensive chronic graft-versus-host diseases. AB - HLA matching is a well-known genetic requirement for successful bone marrow transplantation (BMT). However, the importance of non-HLA single-nucleotide polymorphisms (SNPs) remains poorly understood. The NLR family pyrin domain containing 3 (NLRP3) inflammasome, a key regulator of innate immunity, is associated with multiple diseases. We retrospectively genotyped SNPs of NLRP1-3 and caspase recruitment domain family member 8 (CARD8), which are implicated in the interleukin 1beta (IL-1beta) signaling, in 999 unrelated BMT donor-recipient pairs. We identified an association of the interaction between the recipient NLRP3 SNP CC genotype and total HLA mismatches with grade 2-4 acute graft-versus host disease (AGVHD), and an association of the interaction between the donor NLRP3 SNP T allele and HLA-C mismatch with extensive chronic GVHD (ECGVHD), in both adjusted and unadjusted regressions (P < 0.005). Importantly, the ECGVHD risk associated with HLA-C mismatch was not elevated when the donor NLRP3 genotype was CC. We also identified an association of the interaction between recipient NLRP3 SNP and donor cytomegalovirus seropositivity with overall survival in adjusted regressions (P < 0.005). These results suggest the importance of certain SNP-covariate interactions in unrelated BMT. The three identified interactions may be useful for donor selection or outcome prediction. PMID- 29026155 TI - Trk-fused gene (TFG) regulates pancreatic beta cell mass and insulin secretory activity. AB - The Trk-fused gene (TFG) is reportedly involved in the process of COPII-mediated vesicle transport and missense mutations in TFG cause several neurodegenerative diseases including hereditary motor and sensory neuropathy with proximal dominant involvement (HMSN-P). The high coincidence ratio between HMSN-P and diabetes mellitus suggests TFG to have an important role(s) in glucose homeostasis. To examine this possibility, beta-cell specific TFG knockout mice (betaTFG KO) were generated. Interestingly, betaTFG KO displayed marked glucose intolerance with reduced insulin secretion. Immunohistochemical analysis revealed smaller beta cell masses in betaTFG KO than in controls, likely attributable to diminished beta-cell proliferation. Consistently, beta-cell expansion in response to a high fat, high-sucrose (HFHS) diet was significantly impaired in betaTFG KO. Furthermore, glucose-induced insulin secretion was also markedly impaired in islets isolated from betaTFG KO. Electron microscopic observation revealed endoplasmic reticulum (ER) dilatation, suggestive of ER stress, and smaller insulin crystal diameters in beta-cells of betaTFG KO. Microarray gene expression analysis indicated downregulation of NF-E2 related factor 2 (Nrf2) and its downstream genes in TFG depleted islets. Collectively, TFG in pancreatic beta cells plays a vital role in maintaining both the mass and function of beta-cells, and its dysfunction increases the tendency to develop glucose intolerance. PMID- 29026156 TI - Metabolic Responses of Eisenia Fetida to Individual Pb and Cd Contamination in Two Types of Soils. AB - To characterize the potential toxicity of low Pb- and Cd-contaminated arable soils, earthworms were exposed to Pb contaminated ferrosol, cambosol or Cd contaminated ferrosol for two weeks. Polar metabolites of earthworms were detected by nuclear magnetic resonance. Data were then analyzed with principal component analysis followed by orthogonal signal correction-partial least squares discriminant analysis and univariate analysis to determine possible mechanisms for the changes in metabolites. The survival rates, metal concentrations and bioaccumulation factor (BAF) of the earthworms were also measured and calculated as auxiliary data. The results showed that the metabolite profiles were highly similar in Pb-contaminated ferrosol and cambosol (R2 = 0.76, p < 0.0001), which can be attributed to similar response mechanisms. However, there was a more intense response in ferrosol likely due to higher Pb concentrations in earthworms. Metabolic pathways and BAFs exhibited apparent distinctions between Pb- and Cd-contaminated ferrosol, likely because they bind to different bio ligands. The affected metabolic pathways were involved in alanine-aspartate glutamate, purine, glutathione, valine-leucine-isoleucine biosynthesis and degradation and nicotinate and nicotinamide metabolism. Regarding the bioavailability in earthworms, Pb availability was higher for ferrosol than for cambosol. We confirmed that the potential toxicity of low Pb/Cd-contaminated soils can be characterized using earthworm metabolomics. PMID- 29026157 TI - Bortezomib promotes KHSV and EBV lytic cycle by activating JNK and autophagy. AB - KSHV and EBV are gammaherpesviruses strictly linked to human cancers. Even if the majority of cancer cells harbor a latent infection, the few cells that undergo viral replication may contribute to the pathogenesis and maintenance of the virus associated malignancies. Cytotoxic drugs used for the therapies of cancers harboring virus-infection often have, as side effect, the activation of viral lytic cycle. Therefore it is important to investigate whether they affect viral reactivation and understand the underlying mechanisms involved. In this study, we found that proteasome inhibitor bortezomib, a cytotoxic drug that efficiently target gammaherpesvirus-associated B cell lymphomas, triggered KSHV or EBV viral lytic cycle by activating JNK, in the course of ER stress, and inducing autophagy. These results suggest that the manipulation of these pathways could limit viral spread and improve the outcome of bortezomib treatment in patients affected by gammaherpesvirus-associated lymphomas. PMID- 29026158 TI - Ginsenoside Rb1 prevents homocysteine-induced EPC dysfunction via VEGF/p38MAPK and SDF-1/CXCR4 activation. AB - Hyperhomocystinemia (HHcy) is known as an independent risk factor for cardiovascular disease. Our previous study showed that ginsenoside Rb1, the major active constituent of ginseng, prevents homocysteine (Hcy)-induced endothelial damage. However, the role of ginsenoside Rb1 in Hcy-induced dysfunction in endothelial progenitor cells (EPCs) remains unknown. In the study, we found that ginsenoside Rb1 reversed the Hcy-induced impairment of adhesive and migratory ability in EPCs which were significantly abolished by CXCR4 antagonist AMD3100 and VEGFR2 inhibitor SU5416. Ginsenoside Rb1 significantly reversed Hcy-induced SDF-1 reduction in the supernatant and in the serum. Ginsenoside Rb1 reversed downregulation of SDF-1 and VEGFR2 protein expression, inhibition of p38MAPK phosphorylation induced by Hcy. Re-endothelialization in balloon-injured carotid arteries significantly increased with EPCs transplant, and was even better with Rb1 treatment. This effect was significantly abolished by AMD3100. AMD3100 also decreased the number of CM-DiI labeled EPCs in injured arteries. Here we show for the first time that Rb1 prevents Hcy-induced EPC dysfunction via VEGF/p38MAPK and SDF-1/CXCR4 activation. These findings demonstrate a novel mechanism of the action of Rb1 that may have value in prevention of HHcy associated cardiovascular disease. PMID- 29026159 TI - Spectrum of spontaneous photon emission as a promising biophysical indicator for breast cancer research. AB - In this study, we investigated the spectral characteristics of Spontaneous Photon Emission (SPE) from the body surface of a human breast cancer-bearing nude mice model during the overall growth process of breast cancers. By comparing and analyzing the data, we found that there was a striking difference between tumor mice and healthy controls in the spectral distribution of SPE from the body surface of lesion site, even when the morphological changes at the lesion site were not obvious. The spectral distribution of SPE from the healthy site of the tumor mice also differed from that of the healthy controls as the breast cancer developed to a certain stage. In addition, the difference in spectrum was related with different growth states of tumors. Interestingly, there was a positive correlation between the spectral ratio (610-630/395-455 nm) and the logarithm of the tumor volume for both the lesion site (R2 = 0.947; p < 0.001) and the normal site (R2 = 0.892; p < 0.001) of the tumor mice. The results suggested that the spectrum of SPE was sensitive to changes in the tumor status. PMID- 29026160 TI - Small-angle neutron scattering modeling of spin disorder in nanoparticles. AB - Magnetic small-angle neutron scattering (SANS) is a powerful technique for investigating magnetic nanoparticle assemblies in nonmagnetic matrices. For such microstructures, the standard theory of magnetic SANS assumes uniformly magnetized nanoparticles (macrospin model). However, there exist many experimental and theoretical studies which suggest that this assumption is violated: deviations from ellipsoidal particle shape, crystalline defects, or the interplay between various magnetic interactions (exchange, magnetic anisotropy, magnetostatics, external field) may lead to nonuniform spin structures. Therefore, a theoretical framework of magnetic SANS of nanoparticles needs to be developed. Here, we report numerical micromagnetic simulations of the static spin structure and related unpolarized magnetic SANS of a single cobalt nanorod. While in the saturated state the magnetic SANS cross section is (as expected) determined by the particle form factor, significant deviations appear for nonsaturated states; specifically, at remanence, domain-wall and vortex states emerge which result in a magnetic SANS signal that is composed of all three magnetization Fourier components, giving rise to a complex angular anisotropy on a two-dimensional detector. The strength of the micromagnetic simulation methodology is the possibility to decompose the cross section into the individual Fourier components, which allows one to draw important conclusions regarding the fundamentals of magnetic SANS. PMID- 29026161 TI - In vivo noninvasive microscopy of human leucocytes. AB - Leucocytes play a key role in our immune system, protecting the body against infections using a wide range of biological mechanisms. Effective imaging and identification of leucocytes within the blood stream in patients is challenging, however, because of their low volume fraction in the blood, the high tissue scattering and the rapid blood flow. Spectrally encoded flow cytometry (SEFC) has recently been demonstrated effective for label-free high-resolution in vivo imaging of blood cells using an optical probe that does not require mechanical scanning. Here, we use SEFC to noninvasively image leucocytes at different imaging depths within small vessels in human volunteers, and identify visual differences in cell brightness and nuclei shapes, that would help distinguish between the two most abundant leucocyte types. The observed differences match the in vitro characteristics of isolated granulocytes and mononuclear cells. The results prove the potential of the system for conducting differential leucocyte count and as an effective research tool for studying the function and distribution of leucocytes in humans. PMID- 29026162 TI - Improving membrane protein expression and function using genomic edits. AB - Expression of membrane proteins often leads to growth inhibition and perturbs central metabolism and this burden varies with the protein being overexpressed. There are also known strain backgrounds that allow greater expression of membrane proteins but that differ in efficacy across proteins. We hypothesized that for any membrane protein, it may be possible to identify a modified strain background where its expression can be accommodated with less burden. To directly test this hypothesis, we used a bar-coded transposon insertion library in tandem with cell sorting to assess genome-wide impact of gene deletions on membrane protein expression. The expression of five membrane proteins (CyoB, CydB, MdlB, YidC, and LepI) and one soluble protein (GST), each fused to GFP, was examined. We identified Escherichia coli mutants that demonstrated increased membrane protein expression relative to that in wild type. For two of the proteins (CyoB and CydB), we conducted functional assays to confirm that the increase in protein expression also led to phenotypic improvement in function. This study represents a systematic approach to broadly identify genetic loci that can be used to improve membrane protein expression, and our method can be used to improve expression of any protein that poses a cellular burden. PMID- 29026164 TI - Production and evaluation of parathyroid hormone receptor1 ligands with intrinsic or assembled peroxidase domains. AB - Parathyroid hormone (PTH) can be C-terminally extended without significant affinity loss for the PTH1 receptor (PTHR1). We developed fusion protein ligands with enzymatic activity to probe PTHR1s at the cell surface. Two fusion proteins were generated by linking PTH to the N-terminus of either horseradish peroxidase (PTH-HRP) or the genetically modified soybean peroxidase APEX2 (PTH-APEX2). Alternatively, myc-tagged PTH (PTH-myc) was combined with antibodies, some of which HRP-conjugated, in the extracellular fluid. The three PTH-fusion proteins were produced as conditioned mediums (CM) by transfected producer HEK 293a cells. Binding of receptor-bound enzymatic ligands was revealed using widely available substrate/co-substrate systems. The stimulation of recipient HEK 293a expressing PTHR1s with the PTH-myc/antibodies combination or with PTH-APEX2 supported the histochemical or luminescent detection of recombinant PTHR1s (TrueBlueTM or luminol-based reagent). The PTH-HRP construction was the most sensitive and supported all tested peroxidase co-substrates (TrueBlueTM, tetramethylbenzidine (TMB), luminol, biotin-phenol with streptavidin-Qdots); the 3 latter schemes identified endogenous PTHR1 in the osteoblastic HOS cell line. The specificity of the fusion protein binding to PTHR1 was determined by its competition with an excess of PTH1-34. Bifunctional ligands possessing enzymatic activity detect intact receptors with various possible applications, including the screening of drugs that compete for receptor binding. PMID- 29026165 TI - Appropriate surgical modalities for stages T2a and T2b in the eighth TNM classification of lung cancer. AB - Patients with tumors of 3 to 5 cm were divided into stages T2a (3 to 4 cm) and T2b (4 to 5 cm) based on the 8th tumor-node-metastasis staging system for lung cancer. The objective of our study was to explore appropriate surgical modalities for the new stages, T2a and T2b. We selected 6,996 node-negative non-small-cell lung cancer patients with tumor sizes of 3 to 5 cm, diagnosed between 2009 and 2013, from the Surveillance, Epidemiology, and End Results (SEER) program. The Pearson [Formula: see text]. statistic test and Kaplan-Meier curve were used to analyze patient data. The prognosis of patients with stage T2a was significantly better than that of patients with stage T2b, both in overall survival (p = 0.018) and lung cancer specific survival (p = 0.001). For patients with stage T2a, lobectomy had a significantly better outcome. For patients with stage T2b, surgical modalities including pneumonectomy, segmental resection and lobectomy, had similar outcomes in terms of survival. Consequently, lobectomy was the most appropriate surgical treatment modality for new stage T2a patients, whereas, for new T2b patients, treatment outcome did not vary significantly with the choice of surgical modality. PMID- 29026163 TI - Revealing the Saline Adaptation Strategies of the Halophilic Bacterium Halomonas beimenensis through High-throughput Omics and Transposon Mutagenesis Approaches. AB - Studies on the halotolerance of bacteria are attractive to the fermentation industry. However, a lack of sufficient genomic information has precluded an investigation of the halotolerance of Halomonas beimenensis. Here, we describe the molecular mechanisms of saline adaptation in H. beimenensis based on high throughput omics and Tn5 transposon mutagenesis. The H. beimenensis genome is 4.05 Mbp and contains 3,807 genes, which were sequenced using short and long reads obtained via deep sequencing. Sixteen Tn5 mutants with a loss of halotolerance were identified. Orthologs of the mutated genes, such as nqrA, trkA, atpC, nadA, and gdhB, have significant biological functions in sodium efflux, potassium uptake, hydrogen ion transport for energy conversion, and compatible solute synthesis, which are known to control halotolerance. Other genes, such as spoT, prkA, mtnN, rsbV, lon, smpB, rfbC, rfbP, tatB, acrR1, and lacA, function in cellular signaling, quorum sensing, transcription/translation, and cell motility also shown critical functions for promoting a halotolerance. In addition, KCl application increased halotolerance and potassium-dependent cell motility in a high-salinity environment. Our results demonstrated that a combination of omics and mutagenesis could be used to facilitate the mechanistic exploitation of saline adaptation in H. beimenensis, which can be applied for biotechnological purposes. PMID- 29026166 TI - Virus and host-specific differences in oral human herpesvirus shedding kinetics among Ugandan women and children. AB - Human herpesviruses (HHV) establish lifelong latent infection and are transmitted primarily via shedding at mucosal surfaces. Each HHV causes a unique spectrum of disease depending on the infected individual's age and immunity. We collected weekly oral swabs from young children and mothers in 32 Ugandan households for a median of one year. We characterized kinetics of oral shedding during primary and chronic infection for each virus. Cytomegalovirus (CMV), Epstein-Barr virus (EBV), and HHV-6 were shed at high rates following primary infection. The rate of oral herpes simplex virus (HSV) shedding was lower overall, and children and mothers with chronic HSV infection had lower shedding rates than children with primary infection. CMV shedding rate and viral load were higher in children with primary infection compared to children with chronic infection, and even lower in mothers with chronic infection. HHV-6 shedding rate and viral load were similar between children with primary or chronic infection, but lower in mothers. EBV shedding rate and quantity decreased less dramatically in mothers versus children, with HIV-positive mothers shedding at a higher rate than HIV-negative mothers. Each HHV has a distinct pattern of oral shedding which depends partially on the age and immune status of the host. PMID- 29026167 TI - The proteasome inhibitor bortezomib attenuates renal fibrosis in mice via the suppression of TGF-beta1. AB - Kidney fibrosis and fibrogenesis significantly exacerbate chronic kidney disease (CKD) progression and are essential therapeutic targets. Bortezomib (BZM) is a proteasome inhibitor used for the treatment of multiple myeloma (MM). Several studies have demonstrated that BZM attenuates renal impairment in patients with MM, although this effect is generally considered to be the result of MM remission. Recently, several studies on BZM reported anti-fibrotic effects on liver and skin in experimental animal models. However, its effect on renal fibrosis has yet to be examined. Here, we investigated the anti-fibrotic effects of BZM in an experimental mouse model of fibrosis that uses aristolochic acid I (AA). Ten weeks of AA administration with BZM treatment twice a week significantly attenuated AA-induced renal dysfunction and albuminuria, reduced the expression of renal fibrosis-related proteins and kidney injury markers, such as alphaSMA, Kim1, and Ngal, and prevented renal fibrosis at the level of histopathology. Furthermore, pathological activation of TGFbeta1-Smad3 signaling and apoptosis, essential pathophysiological causes of AA-induced nephropathy (AAN), were ameliorated by BZM, suggesting this mechanism may be involved in improving fibrosis in AAN. In conclusion, BZM directly inhibits renal fibrosis in CKD via suppression of TGFbeta1-Smad3 signaling and is promising in terms of drug repositioning. PMID- 29026169 TI - Potential impacts of climate change on habitat suitability for the Queensland fruit fly. AB - Anthropogenic climate change is a major factor driving shifts in the distributions of pests and invasive species. The Queensland fruit fly, Bactrocera tryoni Froggatt (Qfly), is the most economically damaging insect pest of Australia's horticultural industry, and its management is a key priority for plant protection and biosecurity. Identifying the extent to which climate change may alter the distribution of suitable habitat for Qfly is important for the development and continuation of effective monitoring programs, phytosanitary measures, and management strategies. We used Maxent, a species distribution model, to map suitable habitat for Qfly under current climate, and six climate scenarios for 2030, 2050 and 2070. Our results highlight that south-western Australia, northern regions of the Northern Territory, eastern Queensland, and much of south-eastern Australia are currently suitable for Qfly. This includes southern Victoria and eastern Tasmania, which are currently free of breeding populations. There is substantial agreement across future climate scenarios that most areas currently suitable will remain so until at least 2070. Our projections provide an initial estimate of the potential exposure of Australia's horticultural industry to Qfly as climate changes, highlighting the need for long term vigilance across southern Australia to prevent further range expansion of this species. PMID- 29026168 TI - Gene losses and partial deletion of small single-copy regions of the chloroplast genomes of two hemiparasitic Taxillus species. AB - Numerous variations are known to occur in the chloroplast genomes of parasitic plants. We determined the complete chloroplast genome sequences of two hemiparasitic species, Taxillus chinensis and T. sutchuenensis, using Illumina and PacBio sequencing technologies. These species are the first members of the family Loranthaceae to be sequenced. The complete chloroplast genomes of T. chinensis and T. sutchuenensis comprise circular 121,363 and 122,562 bp-long molecules with quadripartite structures, respectively. Compared with the chloroplast genomes of Nicotiana tabacum and Osyris alba, all ndh genes as well as three ribosomal protein genes, seven tRNA genes, four ycf genes, and the infA gene of these two species have been lost. The results of the maximum likelihood and neighbor-joining phylogenetic trees strongly support the theory that Loranthaceae and Viscaceae are monophyletic clades. This research reveals the effect of a parasitic lifestyle on the chloroplast structure and genome content of T. chinensis and T. sutchuenensis, and enhances our understanding of the discrepancies in terms of assembly results between Illumina and PacBio. PMID- 29026170 TI - Randomized clinical trial: Effective gluten degradation by Aspergillus niger derived enzyme in a complex meal setting. AB - The Aspergillus niger-derived prolyl endoprotease (AN-PEP) has previously been shown to degrade gluten in healthy subjects when added to an intragastrically infused meal. The current study investigated the efficacy of AN-PEP in a physiological meal setting. In this randomized placebo-controlled crossover study, 18 gluten-sensitive subjects consumed a porridge containing 0.5 g gluten together with two tablets either containing a high or low dose of AN-PEP, or placebo. Gastric and duodenal content was sampled over 180 minutes, and areas under the curve of gluten concentrations were calculated. The primary outcome, i.e. success rate of high dose AN-PEP defined as at least 50% gluten degradation compared to placebo in the duodenum, was achieved in 10 of 13 comparisons. In the stomach, gluten levels were reduced from 176.9 (median, interquartile range 73.5 357.8) to 22.0 (10.6-50.8, p = 0.001) in the high dose and to 25.4 MUg * min/ml (16.4-43.7, p = 0.001) in the low dose. In the duodenum, gluten levels were reduced from 14.1 (8.3-124.7) in the placebo to 6.3 (3.5-19.8, p = 0.019) in the high dose and to 7.4 MUg * min/ml in the low dose (3.8-12.0, p = 0.015). Thus even in a physiological meal setting, AN-PEP significantly degraded most gluten in the stomach before it entered the duodenum. PMID- 29026171 TI - Characterization and genomic study of "phiKMV-Like" phage PAXYB1 infecting Pseudomonas aeruginosa. AB - Bacteriophage PAXYB1 was recently isolated from wastewater samples. This phage was chosen based on its lytic properties against clinical isolates of Pseudomonas aeruginosa (P. aeruginosa). In the present study, characterized PAXYB1, clarified its morphological and lytic properties, and analyzed its complete genome sequence. Based on the morphology of PAXYB1, it is a Podoviridae. The linear GC rich (62.29%) double-stranded DNA genome of PAXYB1 is 43,337 bp including direct terminal repeats (DTRs) of 468 bp. It contains 60 open reading frames (ORFs) that are all encoded within the same strand. We also showed that PAXYB1 is a virulent phage and a new member of the phiKMV-like phages genus. Twenty-eight out of sixty predicted gene products (gps) showed significant homology to proteins of known function, which were confirmed by analyzing the structural proteome. Altogether, our work identified a novel lytic bacteriophage that lyses P. aeruginosa PAO1 and efficiently infects and kills several clinical isolates of P. aeruginosa. This phage has potential for development as a biological disinfectant to control P. aeruginosa infections. PMID- 29026172 TI - Mitochondrial glycerol 3-phosphate facilitates bumblebee pre-flight thermogenesis. AB - Bumblebees (Bombus terrestris) fly at low ambient temperatures where other insects cannot, and to do so they must pre-warm their flight muscles. While some have proposed mechanisms, none fully explain how pre-flight thermogenesis occurs. Here, we present a novel hypothesis based on the less studied mitochondrial glycerol 3-phosphate dehydrogenase pathway (mGPDH). Using calorimetry, and high resolution respirometry coupled with fluorimetry, we report substrate oxidation by mGPDH in permeabilised flight muscles operates, in vitro, at a high flux, even in the absence of ADP. This may be facilitated by an endogenous, mGPDH-mediated uncoupling of mitochondria. This uncoupling increases ETS activity, which results in increased heat release. Furthermore, passive regulation of this mechanism is achieved via dampened temperature sensitivity of mGPDH relative to other respiratory pathways, and subsequent consumption of its substrate, glycerol 3 phosphate (G3P), at low temperatures. Mitochondrial GPDH may therefore facilitate pre-flight thermogenesis through poor mitochondrial coupling. We calculate this can occur at a sufficient rate to warm flight muscles until shivering commences, and until flight muscle function is adequate for bumblebees to fly in the cold. PMID- 29026174 TI - The chemical states and atomic structure evolution of ultralow-energy high-dose Boron implanted Si(110) via laser annealing. AB - Further scale down the dimension of silicon-based integrated circuit is a crucial trend in semiconductor fabrication. One of the most critical issues in the nano device fabrication is to confirm the atomic structure evolution of the ultrathin shallow junction. In this report, UV Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray absorption near edge structure (XANES) and reflective second harmonic generation (RSHG) are utilized to monitor the pulse laser induced atomic structure evolution of ultralow-energy high-dose Boron implanted Si(110) at room and cold substrate temperature. A peak feature around 480 cm-1 resolved in UV Raman spectra indicates the formation of Si-B bond after the laser irradiation. The red shift of binding energy of Si element (~99 eV) in XPS and the evolution of absorption peak (~196.2 eV) in XANES reveal that the changes in the chemical states of ultra shallow junction strongly correlate to the activation process of Boron implantation, which is confirmed by RSHG measurement. The substrate temperature effect in the recrystallization of Boron implanted region is also realized by cross-section high-resolution TEM (HRTEM). The phenomena of Si-B bond formation and ultra-shallow junction recrystallization can be traced and applied to improve the reliability of Si ultra shallow junction in the future. PMID- 29026173 TI - Three-Dimensional SERS Substrates Formed with Plasmonic Core-Satellite Nanostructures. AB - We demonstrate three-dimensional surface-enhanced Raman spectroscopy (SERS) substrates formed by accumulating plasmonic nanostructures that are synthesized using a DNA-assisted assembly method. We densely immobilize Au nanoparticles (AuNPs) on polymer beads to form core-satellite nanostructures for detecting molecules by SERS. The experimental parameters affecting the AuNP immobilization, including salt concentration and the number ratio of the AuNPs to the polymer beads, are tested to achieve a high density of the immobilized AuNPs. To create electromagnetic hot spots for sensitive SERS sensing, we add a Ag shell to the AuNPs to reduce the interparticle distance further, and we carefully adjust the thickness of the shell to optimize the SERS effects. In addition, to obtain sensitive and reproducible SERS results, instead of using the core-satellite nanostructures dispersed in solution directly, we prepare SERS substrates consisting of closely packed nanostructures by drying nanostructure-containing droplets on hydrophobic surfaces. The densely distributed small and well controlled nanogaps on the accumulated nanostructures function as three dimensional SERS hot spots. Our results show that the SERS spectra obtained using the substrates are much stronger and more reproducible than that obtained using the nanostructures dispersed in solution. Sensitive detection of melamine and sodium thiocyanate (NaSCN) are achieved using the SERS substrates. PMID- 29026175 TI - Efficient reduction of nitric oxide using zirconium phosphide powders synthesized by elemental combination method. AB - Zirconium phosphide (ZrP) powders were synthesized by elemental combination method via the direct reaction of zirconium powders with red phosphorus, and characterized by XRD, SEM, XPS, XRF, SAED and TEM measurements. The obtained ZrP powders were found to exhibit apparent activity in the ready eliminateion of nitric oxide (NO) via facile redox reactions, and the elimination dynamics was evaluated within the context of various important experimental parameters, such as reaction temperature and gas concentration. At a fixed amount of ZrP powders, an increasing amount of NO would be eliminated with increasing reaction temperature, and complete conversion of NO to N2 could be reached in the range of 700 to 800 degrees C. The addition of NH3 also facilitated NO elimination at a fixed reaction temperature. Furthermore, of the products of the elimination process, zirconia (ZrO2) powder is a kind of biocompatible material, red phosphorus can be used to produce safety matches, organophosphorous pesticide and phosphor bronze, and the produced N2 might be collected and used as a protective gas or be converted into liquid nitrogen for other purposes. PMID- 29026177 TI - Divergent drivers of the spatial and temporal variations of cropland carbon transfer in Liaoning province, China. AB - Spatial and temporal variations are important points of focus in ecological research. Analysing their differences improves our understanding on the variations of ecological phenomena. Using data from the Liaoning Statistical Yearbook, we investigated the spatial and temporal variations of cropland carbon transfer (CCT), an important ecological phenomenon in quantifying the regional carbon budget, in particular, the influencing factors and difference. The results showed that, from 1992 to 2014, the average CCT in Liaoning province was 18.56 TgC yr-1 and decreased from northwest to southeast. CCT spatial variation was primarily affected by the ratio of planting area to regional area (RPR) via its effect on the magnitude of carbon transfer (MCT), which depended mainly on fertilizer usage per area (FUA). From 1992 to 2014, CCT exhibited a significantly increasing trend with a rate of 0.48 TgC yr-1. The inter-annual variation of CCT was dominated by carbon transfer per planting area (CTP) through its effect on MCT, which significantly correlated with FUA but showed no significant correlation with climatic factors. Therefore, the factors affecting the spatial variation of CCT differed from those that affected its inter-annual variation, indicating that the spatial and temporal variations of ecological phenomena were affected by divergent factors. PMID- 29026178 TI - Erratum: One-month spaceflight compromises the bone microstructure, tissue-level mechanical properties, osteocyte survival and lacunae volume in mature mice skeletons. 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- 29026176 TI - Primary Astrocytic Tumours and Paired Recurrences have Similar Biological Features in IDH1, TP53 and TERTp Mutation and MGMT, ATRX Loss. AB - Astrocytic tumours are the most common type of primary malignant brain tumour. Most astrocytic tumours will recur at some point after surgery. Currently, the combination of radiotherapy and chemotherapy does not prevent the recurrence of astrocytic tumours. In this study, we investigated the consistency in isocitrate dehydrogenase 1 (IDH1), tumour protein p53 (TP53) and telomerase reverse transcriptase promoter (TERTp) mutations during astrocytic tumour recurrence. We also evaluated the protein loss of O-6-methylguanine-DNA methyltransferase (MGMT) and alpha-thalassemia/mental retardation, X-linked (ATRX) during disease recurrence. We then determined the prognostic significance of these findings in terms of progression-free survival (PFS) using Kaplan-Meier analysis and Cox regression models. Our results showed that in most cases, IDH1, TP53 and TERTp mutation status and MGMT and ATRX protein expression levels were stable during recurrence, which may indicate that these alterations occurred early in astrocytic tumour development. Furthermore, in IDH1 wild type group, the patients who were negative for MGMT and had a low Ki67 index showed a longer PFS. Therefore, we suggest that IDH1 mutation combined with MGMT expression level and Ki67 index might be an effective biomarker panel for evaluating the PFS of patients with astrocytic tumours. PMID- 29026179 TI - Effects of Prenatal Phthalate Exposure on Thyroid Hormone Concentrations Beginning at The Embryonic Stage. AB - Limited studies have consistently shown an association of phthalates exposure with thyroid hormones (THs) in pregnant women. However, it remains unknown on which specific phthalates can affect THs and whether any effects could differ by gestational age. In the present study, we investigated associations between serum concentrations of phthalate monoesters [monoethyl phthalate (MEP), mono-(n + iso) butyl phthalate (MBP) and mono(2-ethylhexyl) phthalate (MEHP)] and THs [thyroid stimulating hormone (TSH), total thyroxine (TT4) and free thyroxine (FT4)] in Chinese pregnant women. 1,397 women were recruited from the China-Anhui Birth Cohort. Maternal serum samples were collected and used to measure phthalate metabolites and THs. Covariate-adjusted linear regression analyses showed that natural log (Ln)-transferred concentrations of MBP and LnMEHP were negatively associated with TT4 (beta = -0.277 and -0.461, respectively; p < 0.001). Stratification analyses by gestational weeks showed significant associations of LnMBP and LnMEHP with TT4 in gestational weeks 5 to 8, 9 to 12, and 13 to 20. Our findings suggest an association of serum phthalates with lower TT4. The influence of MBP and MEHP on TT4 concentrations throughout the early pregnancy may begin from the embryonic stage (gestational weeks 5 to 8). PMID- 29026180 TI - Ultraintense UV emission from ZnO-sheathed ZnS nanorods. AB - Short-wavelength luminescence is essential for high-performance optoelectronic device applications. There have been efforts to obtain intense ultraviolet (UV) emission by encapsulating ZnO one-dimensional (1D) nanostructures with materials such as ZnS. However, the encapsulation of ZnS 1D nanostructures with ZnO has not been reported. In this paper, we report ultraintense UV emission from ZnS nanorods coated with ZnO, i.e., ZnS-core/ZnO-shell nanorods. UV emission from the ZnS-core/ZnO-shell nanorods was much more intense than that obtained from the extensively studied ZnO-core/ZnS-shell nanorods. The highest intensity of the near-band-edge emission from the ZnS-core/ZnO-shell nanorods was obtained with a ZnO shell layer thickness of 35 nm, which is ~16 times higher than that of pristine ZnS nanorods. Moreover, the deep level (DL) emission was suppressed completely. The substantial enhancement of the UV emission from the ZnS nanorods and the complete suppression of the DL emission by ZnO sheathing can be rationalized by combining the following four effects: the reinforcement of the UV emission by the overlap of the UV emissions from the ZnS core and ZnO shell, enhancement of the emission from the ZnO shell by the carrier transfer from the ZnS core to the ZnO shell, suppression of the capture of carriers by the surface states on the ZnS surface, and suppression of the visible emission and nonradiative recombination in ZnS. PMID- 29026182 TI - Effects of disorder induced by heavy-ion irradiation on (Ba1-x K x )Fe2As2 single crystals, within the three-band Eliashberg s+/- wave model. AB - One of the open issues concerning iron-based superconductors is whether the s+/- wave model is able to account for the overall effects of impurity scattering, including the low rate of decrease of the critical temperature with the impurity concentration. Here we investigate Ba1-x K x Fe2As2 crystals where disorder is introduced by Au-ion irradiation. Critical temperature, T c , and London penetration depth, lambda L , were measured by a microwave resonator technique, for different values of the irradiation fluence. We compared experimental data with calculations made on the basis of the three-band Eliashberg equations, suitably accounting for the impurity scattering. We show that this approach is able to explain in a consistent way the effects of disorder both on T c and on lambda L (T), within the s+/- wave model. In particular, a change of curvature in the low-temperature lambda L (T) curves for the most irradiated crystals is fairly well reproduced. PMID- 29026181 TI - Social support and mental health in late adolescence are correlated for genetic, as well as environmental, reasons. AB - Late adolescence is a crucial, but underexplored, developmental stage with respect to the aetiology of social support. These individuals are experiencing many major life changes and social support can help them adjust to the associated environmental stressors of this time. Using 1,215 18-year-old twin pairs from the Twins Early Development Study, we collected measures of two indices of support: support quality and support quantity, as well as wellbeing and depression. Both support indices were moderately heritable (55% and 49%, respectively), an interesting finding given the many environmental changes that late adolescents are encountering that could be environmentally altering their social network structures. Finding a genetic influence on support suggests the presence of gene environment correlation whereby individuals create and perceive their supportive environment based upon their genetic predispositions. Shared genetic influences mediated the moderate phenotypic correlation (mean r = 0.46) between support and mental health. Genetic correlations were higher between support quality and mental health (mean rA = 0.75), than between support quantity and mental health (mean rA = 0.54), reflecting the phenotypic pattern. This suggests that interventions should focus more on making late adolescents aware of the support quality around them than encouraging them to increase their social network size. PMID- 29026183 TI - Developmental Emergence of Sparse Coding: A Dynamic Systems Approach. AB - During neocortical development, network activity undergoes a dramatic transition from largely synchronized, so-called cluster activity, to a relatively sparse pattern around the time of eye-opening in rodents. Biophysical mechanisms underlying this sparsification phenomenon remain poorly understood. Here, we present a dynamic systems modeling study of a developing neural network that provides the first mechanistic insights into sparsification. We find that the rest state of immature networks is strongly affected by the dynamics of a transient, unstable state hidden in their firing activities, allowing these networks to either be silent or generate large cluster activity. We address how, and which, specific developmental changes in neuronal and synaptic parameters drive sparsification. We also reveal how these changes refine the information processing capabilities of an in vivo developing network, mainly by showing a developmental reduction in the instability of network's firing activity, an effective availability of inhibition-stabilized states, and an emergence of spontaneous attractors and state transition mechanisms. Furthermore, we demonstrate the key role of GABAergic transmission and depressing glutamatergic synapses in governing the spatiotemporal evolution of cluster activity. These results, by providing a strong link between experimental observations and model behavior, suggest how adult sparse coding networks may emerge developmentally. PMID- 29026184 TI - Research attitudes and perceived barriers to conducting research among ophthalmology trainees. PMID- 29026185 TI - Simple fixation and removal of dacryocystorhinostomy tube. PMID- 29026186 TI - About bariatric surgery and diabetic retinopathy; the debate continues. PMID- 29026188 TI - Practitioner evaluation of an online oral health and risk assessment tool for young patients. AB - Aim To test the validity and acceptability of an online oral health assessment and biofeedback tool for young patients (under 17) for use in general dental practice.Methods A convenience sample of thirteen practitioners were recruited to test the functionality of a novel version of the Denplan PreViser Patient Assessment tool (DEPPA) developed for young patients (YDEPPA). Dentists who had completed eight or more assessments during a one month window were sent a link to an online feedback survey, comprising eight statements about YDEPPA, with scoring options of 0-10, where a score of 10 indicated complete agreement with the relevant questions. Verbatim comments were encouraged. The clinical data submitted were held in a central database in an encrypted format so that only the user practice could identify individual patients.Results Twelve practitioners completed eight or more assessments and were included in the survey. A total of 175 patient assessments were received. Ten practitioners completed the on-line survey. The statement 'YDEPPA produces a valid measurement of each patient's oral health' received an average feedback score of 8.8. The statement 'The full YDEPPA report is a valuable communication aid' received a score of 9.6. Feedback was generally very positive with all scores >8.2. Constructive critical feedback was received for the caries risk aspect of the YDEPPA protocol, with suggestions made for improving objectivity of data inputs. Eighty-one percent of the verbatim comments received were positive.Conclusions Once the caries risk issues raised by pilot dentists have been addressed, YDEPPA appears suitable as a pragmatic analytical and biofeedback tool for use in general dental practice to assess the oral health of young patients, and to facilitate education and engagement of young patients and their parents/carers in positive health behaviours. PMID- 29026187 TI - Comment on: 'One-year real-world outcomes in patients receiving fixed-dosing aflibercept for neovascular age-related macular degeneration'. PMID- 29026189 TI - Sustainability and Transformation Partnerships: What are they and how do they affect dentistry? AB - Sustainability and Transformation Partnerships or 'STPs' have been formed from NHS and social care providers, commissioners, and local councils in 44 areas covering the whole of England to improve the care they provide. Proposals, known as 'Sustainability and Transformation Plans' have been developed that address the needs of the whole population of each area, rather than the needs of each individual organisation. STPs are fundamental to how care will be delivered and commissioned in the future and have recently been portrayed in the media as the vehicle for cuts to NHS services. Here we explore how accurate this is, how STPs vary in different areas, and the opportunities they present for dentistry to become more integrated with other NHS services. PMID- 29026190 TI - Growth hormone secretagogues hexarelin and JMV2894 protect skeletal muscle from mitochondrial damages in a rat model of cisplatin-induced cachexia. AB - Chemotherapy can cause cachexia, which consists of weight loss associated with muscle atrophy. The exact mechanisms underlying this skeletal muscle toxicity are largely unknown and co-therapies to attenuate chemotherapy-induced side effects are lacking. By using a rat model of cisplatin-induced cachexia, we here characterized the mitochondrial homeostasis in tibialis anterior cachectic muscle and evaluated the potential beneficial effects of the growth hormone secretagogues (GHS) hexarelin and JMV2894 in this setting. We found that cisplatin treatment caused a decrease in mitochondrial biogenesis (PGC-1alpha, NRF-1, TFAM, mtDNA, ND1), mitochondrial mass (Porin and Citrate synthase activity) and fusion index (MFN2, Drp1), together with changes in the expression of autophagy-related genes (AKT/FoxO pathway, Atg1, Beclin1, LC3AII, p62) and enhanced ROS production (PRX III, MnSOD). Importantly, JMV2894 and hexarelin are capable to antagonize this chemotherapy-induced mitochondrial dysfunction. Thus, our findings reveal a key-role played by mitochondria in the mechanism responsible for GHS beneficial effects in skeletal muscle, strongly indicating that targeting mitochondrial dysfunction might be a promising area of research in developing therapeutic strategies to prevent or limit muscle wasting in cachexia. PMID- 29026191 TI - Mechanisms involved in the triggering of neutrophil extracellular traps (NETs) by Candida glabrata during planktonic and biofilm growth. AB - Candida spp. adhere to medical devices, such as catheters, forming drug-tolerant biofilms that resist killing by the immune system. Little is known about how C. glabrata, an emerging pathogen, resists attack by phagocytes. Here we show that upon encounter with planktonic (non-biofilm) C. glabrata, human neutrophils initially phagocytose the yeast and subsequently release neutrophil extracellular traps (NETs), complexes of DNA, histones, and proteins capable of inhibiting fungal growth and dissemination. When exposed to C. glabrata biofilms, neutrophils also release NETs, but significantly fewer than in response to planktonic cells. Impaired killing of biofilm parallels the decrease in NET production. Compared to biofilm, neutrophils generate higher levels of reactive oxygen species (ROS) when presented with planktonic organisms, and pharmacologic inhibition of NADPH-oxidase partially impairs NET production. In contrast, inhibition of phagocytosis nearly completely blocks NET release to both biofilm and planktonic organisms. Imaging of the host response to C. glabrata in a rat vascular model of infection supports a role for NET release in vivo. Taken together, these findings show that C. glabrata triggers NET release. The diminished NET response to C. glabrata biofilms likely contributes to the resilience of these structured communities to host defenses. PMID- 29026192 TI - Enhancing the sialylation of recombinant EPO produced in CHO cells via the inhibition of glycosphingolipid biosynthesis. AB - Sialylation regulates the in vivo half-life of recombinant therapeutic glycoproteins, affecting their therapeutic efficacy. Levels of the precursor molecule cytidine monophospho-N-acetylneuraminic acid (CMP-Neu5Ac) are considered a limiting factor in the sialylation of glycoproteins. Here, we show that by reducing the amount of intracellular CMP-Neu5Ac consumed for glycosphingolipid (GSL) biosynthesis, we can increase the sialylation of recombinant human erythropoietin (rhEPO) produced in CHO cells. Initially, we found that treating CHO cells with a potent inhibitor of GSL biosynthesis increases the sialylation of the rhEPO they produce. Then, we established a stable CHO cell line that produces rhEPO in the context of repression of the key GSL biosynthetic enzyme UDP-glucose ceramide glucosyltransferase (UGCG). These UGCG-depleted cells show reduced levels of gangliosides and significantly elevated levels of rhEPO sialylation. Upon further analysis of the resulting N-glycosylation pattern, we discovered that the enhanced rhEPO sialylation could be attributed to a decrease in neutral and mono-sialylated N-glycans and an increase in di-sialylated N glycans. Our results suggest that the therapeutic efficacy of rhEPO produced in CHO cells can be improved by shunting intracellular CMP-Neu5Ac away from GSL biosynthesis and toward glycoprotein sialylation. PMID- 29026193 TI - Biomarker-indicated extent of oxidation of plant-derived organic carbon (OC) in relation to geomorphology in an arsenic contaminated Holocene aquifer, Cambodia. AB - The poisoning of rural populations in South and Southeast Asia due to high groundwater arsenic concentrations is one of the world's largest ongoing natural disasters. It is important to consider environmental processes related to the release of geogenic arsenic, including geomorphological and organic geochemical processes. Arsenic is released from sediments when iron-oxide minerals, onto which arsenic is adsorbed or incorporated, react with organic carbon (OC) and the OC is oxidised. In this study we build a new geomorphological framework for Kandal Province, a highly studied arsenic affected region of Cambodia, and tie this into wider regional environmental change throughout the Holocene. Analyses shows that the concentration of OC in the sediments is strongly inversely correlated to grainsize. Furthermore, the type of OC is also related to grain size with the clay containing mostly (immature) plant derived OC and sand containing mostly thermally mature derived OC. Finally, analyses indicate that within the plant derived OC relative oxidation is strongly grouped by stratigraphy with the older bound OC more oxidised than younger OC. PMID- 29026194 TI - The equivalent internal orientation and position noise for contour integration. AB - Contour integration is the joining-up of local responses to parts of a contour into a continuous percept. In typical studies observers detect contours formed of discrete wavelets, presented against a background of random wavelets. This measures performance for detecting contours in the limiting external noise that background provides. Our novel task measures contour integration without requiring any background noise. This allowed us to perform noise-masking experiments using orientation and position noise. From these we measure the equivalent internal noise for contour integration. We found an orientation noise of 6 degrees and position noise of 3 arcmin. Orientation noise was 2.6x higher in contour integration compared to an orientation discrimination control task. Comparing against a position discrimination task found position noise in contours to be 2.4x lower. This suggests contour integration involves intermediate processing that enhances the quality of element position representation at the expense of element orientation. Efficiency relative to the ideal observer was lower for the contour tasks (36% in orientation noise, 21% in position noise) compared to the controls (54% and 57%). PMID- 29026196 TI - Work and information from thermal states after subtraction of energy quanta. AB - Quantum oscillators prepared out of thermal equilibrium can be used to produce work and transmit information. By intensive cooling of a single oscillator, its thermal energy deterministically dissipates to a colder environment, and the oscillator substantially reduces its entropy. This out-of-equilibrium state allows us to obtain work and to carry information. Here, we propose and experimentally demonstrate an advanced approach, conditionally preparing more efficient out-of-equilibrium states only by a weak dissipation, an inefficient quantum measurement of the dissipated thermal energy, and subsequent triggering of that states. Although it conditionally subtracts the energy quanta from the oscillator, average energy grows, and second-order correlation function approaches unity as by coherent external driving. On the other hand, the Fano factor remains constant and the entropy of the subtracted state increases, which raise doubts about a possible application of this approach. To resolve it, we predict and experimentally verify that both available work and transmitted information can be conditionally higher in this case than by arbitrary cooling or adequate thermal heating up to the same average energy. It qualifies the conditional procedure as a useful source for experiments in quantum information and thermodynamics. PMID- 29026195 TI - Characterization of Fluorescein Arsenical Hairpin (FlAsH) as a Probe for Single Molecule Fluorescence Spectroscopy. AB - In recent years, new labelling strategies have been developed that involve the genetic insertion of small amino-acid sequences for specific attachment of small organic fluorophores. Here, we focus on the tetracysteine FCM motif (FLNCCPGCCMEP), which binds to fluorescein arsenical hairpin (FlAsH), and the ybbR motif (TVLDSLEFIASKLA) which binds fluorophores conjugated to Coenzyme A (CoA) via a phosphoryl transfer reaction. We designed a peptide containing both motifs for orthogonal labelling with FlAsH and Alexa647 (AF647). Molecular dynamics simulations showed that both motifs remain solvent-accessible for labelling reactions. Fluorescence spectra, correlation spectroscopy and anisotropy decay were used to characterize labelling and to obtain photophysical parameters of free and peptide-bound FlAsH. The data demonstrates that FlAsH is a viable probe for single-molecule studies. Single-molecule imaging confirmed dual labeling of the peptide with FlAsH and AF647. Multiparameter single-molecule Forster Resonance Energy Transfer (smFRET) measurements were performed on freely diffusing peptides in solution. The smFRET histogram showed different peaks corresponding to different backbone and dye orientations, in agreement with the molecular dynamics simulations. The tandem of fluorophores and the labelling strategy described here are a promising alternative to bulky fusion fluorescent proteins for smFRET and single-molecule tracking studies of membrane proteins. PMID- 29026197 TI - Differences in Tribological Behaviors upon Switching Fixed and Moving Materials of Tribo-pairs including Metal and Polymer. AB - The coefficient of friction (COF) between two materials is usually believed to be an intrinsic property of the materials themselves. In this study, metals of stainless steel (304) and brass (H62), and polymers of polypropylene (PP) and polytetrafluoroethylene (PTFE) were tested on a standard ball-on-three-plates test machine. Significantly different tribological behaviors were observed when fixed and moving materials of tribo-pairs (metal/polymer) were switched. As an example, under the same applied load and rotating speed, the COF (0.49) between a rotating PP ball and three fixed H62 plates was approximately 2.3 times higher than that between switched materials of tribo-pairs. Meanwhile, the COF between H62 and PTFE was relatively stable. The unexpected tribological behaviors were ascribed to the thermal and mechanical properties of tribo-pairs. Theoretical analysis revealed that the differences in the maximum local temperature between switching the fixed and moving materials of tribo-pairs were consistent with the differences in the tested COF. This result indicated the precise prediction of the COF of two materials is complexcity, and that thermal and mechanical properties should be properly considered in designing tribo-pairs, because these properties may significantly affect tribological performance. PMID- 29026198 TI - Ctbp2-mediated beta-catenin regulation is required for exit from pluripotency. AB - The canonical Wnt pathway is critical for embryonic stem cell (ESC) pluripotency and aberrant control of beta-catenin leads to failure of exit from pluripotency and lineage commitments. Hence, maintaining the appropriate level of beta-catenin is important for the decision to commit to the appropriate lineage. However, how beta-catenin links to core transcription factors in ESCs remains elusive. C terminal-binding protein (CtBP) in Drosophila is essential for Wnt-mediated target gene expression. In addition, Ctbp acts as an antagonist of beta catenin/TCF activation in mammals. Recently, Ctbp2, a core Oct4-binding protein in ESCs, has been reported to play a key role in ESC pluripotency. However, the significance of the connection between Ctbp2 and beta-catenin with regard to ESC pluripotency remains elusive. Here, we demonstrate that C-terminal-binding protein 2 (Ctbp2) associates with major components of the beta-catenin destruction complex and limits the accessibility of beta-catenin to core transcription factors in undifferentiated ESCs. Ctbp2 knockdown leads to stabilization of beta-catenin, which then interacts with core pluripotency maintaining factors that are occupied by Ctbp2, leading to incomplete exit from pluripotency. These findings suggest a suppressive function for Ctbp2 in reducing the protein level of beta-catenin, along with priming its position on core pluripotency genes to hinder beta-catenin deposition, which is central to commitment to the appropriate lineage. PMID- 29026199 TI - Probiotic supplementation in preterm infants does not affect the risk of retinopathy of prematurity: a meta-analysis of randomized controlled trials. AB - Retinopathy of prematurity (ROP) is a vascular disorder of the developing retina in preterm infants and is a leading cause of childhood blindness. Perinatal infection plays a pathogenic role in ROP. Probiotic supplementation reduces the risk of late onset sepsis (LOS) in preterm infants but it remains to be determined whether this reduction translates into a reduction of other complications. We conducted a systematic review and meta-analysis to evaluate the possible role of probiotics in altering the risk of ROP. Eleven randomized controlled trials (4250 infants; probiotics: 2121) were included in the meta analysis that showed a significantly decreased rate of LOS with a risk ratio (RR) of 0.807 and a 95% confidence interval (CI) of 0.705 to 0.924 (P = 0.010; fixed effects model) but could not demonstrate a significant effect of probiotics on any stage ROP (RR 1.053, 95% CI 0.903 to 1.228, P = 0.508, 4 studies), or severe ROP (RR 0.841, 95% CI 0.666 to 1.063, P = 0.148, 9 studies). Meta-regression did not show any significant association between the RR for LOS and the RR for severe ROP. In conclusion, our results suggest that infection prevention by probiotics does not affect the risk of developing ROP in preterm infants. PMID- 29026200 TI - Simultaneous quantification of nine aconitum alkaloids in Aconiti Lateralis Radix Praeparata and related products using UHPLC-QQQ-MS/MS. AB - Aconiti Lateralis Radix Praeparata (Fuzi) is obtained from processed daughter roots of Aconitum carmichaeli, a toxic plant with a high medical value well known in Chinese medicine. In addition to the known toxic alkaloids (aconitine, mesaconitine, and hypaconitine) and bioactive alkaloids (benzoylaconine, benzoylmesaconine, and benzoylhypaconine), three rarely found alkaloids have been previously reported in Fuzi, i.e., yunaconitine, 8-deacetyl-yunaconitine, and crassicauline A, and they were reported in recent years to cause potential risk to patients who took Fuzi or related products. To better control the quality of this herb and its related products and ensure safe use, developing a method to simultaneously determine these 9 alkaloids is important. In this research, sensitive and accurate ultra-high-performance liquid chromatography coupled with triple quadrupole mass spectrometry method was established and used to examine 51 Fuzi and 27 Fuzi-containing products. Unexpectedly, 8-deacetyl-yunaconitine was detected in 17 Fuzi samples (33.3%) and 3 Fuzi-containing products (11.1%); yunaconitine in 10 Fuzi samples (19.6%) and 10 Fuzi-containing products (37.0%); and crassicauline A in 3 Fuzi samples (5.8%). Industry and clinics should be aware of the unusually high detection rate of these three toxic alkaloids in the Fuzi herb and its related products and take the necessary precautions to protect patients from any potential risk. PMID- 29026202 TI - Loss of ABHD5 promotes the aggressiveness of prostate cancer cells. AB - The accumulation of neutral lipids in intracellular lipid droplets has been associated with the formation and progression of many cancers, including prostate cancer (PCa). Alpha-beta Hydrolase Domain Containing 5 (ABHD5) is a key regulator of intracellular neutral lipids that has been recently identified as a tumor suppressor in colorectal cancer, yet its potential role in PCa has not been investigated. Through mining publicly accessible PCa gene expression datasets, we found that ABHD5 gene expression is markedly decreased in metastatic castration resistant PCa (mCRPC) samples. We further demonstrated that RNAi-mediated ABHD5 silencing promotes, whereas ectopic ABHD5 overexpression inhibits, the invasion and proliferation of PCa cells. Mechanistically, we found that ABHD5 knockdown induces epithelial to mesenchymal transition, increasing aerobic glycolysis by upregulating the glycolytic enzymes hexokinase 2 and phosphofrucokinase, while decreasing mitochondrial respiration by downregulating respiratory chain complexes I and III. Interestingly, knockdown of ATGL, the best-known molecular target of ABHD5, impeded the proliferation and invasion, suggesting an ATGL independent role of ABHD5 in modulating PCa aggressiveness. Collectively, these results provide evidence that ABHD5 acts as a metabolic tumor suppressor in PCa that prevents EMT and the Warburg effect, and indicates that ABHD5 is a potential therapeutic target against mCRPC, the deadly aggressive PCa. PMID- 29026203 TI - Immunotherapy: When viruses attack. PMID- 29026201 TI - Dual contribution of TRPV4 antagonism in the regulatory effect of vasoinhibins on blood-retinal barrier permeability: diabetic milieu makes a difference. AB - Breakdown of the blood-retinal barrier (BRB), as occurs in diabetic retinopathy and other chronic retinal diseases, results in vasogenic edema and neural tissue damage, causing vision loss. Vasoinhibins are N-terminal fragments of prolactin that prevent BRB breakdown during diabetes. They modulate the expression of some transient receptor potential (TRP) family members, yet their role in regulating the TRP vanilloid subtype 4 (TRPV4) remains unknown. TRPV4 is a calcium-permeable channel involved in barrier permeability, which blockade has been shown to prevent and resolve pulmonary edema. We found TRPV4 expression in the endothelium and retinal pigment epithelium (RPE) components of the BRB, and that TRPV4 selective antagonists (RN-1734 and GSK2193874) resolve BRB breakdown in diabetic rats. Using human RPE (ARPE-19) cell monolayers and endothelial cell systems, we further observed that (i) GSK2193874 does not seem to contribute to the regulation of BRB and RPE permeability by vasoinhibins under diabetic or hyperglycemic-mimicking conditions, but that (ii) vasoinhibins can block TRPV4 to maintain BRB and endothelial permeability. Our results provide important insights into the pathogenesis of diabetic retinopathy that will further guide us toward rationally-guided new therapies: synergistic combination of selective TRPV4 blockers and vasoinhibins can be proposed to mitigate diabetes-evoked BRB breakdown. PMID- 29026205 TI - Non-small cell lung cancer: Where there's smoke... PMID- 29026206 TI - Genome-wide association studies of cancer: current insights and future perspectives. AB - Genome-wide association studies (GWAS) provide an agnostic approach for investigating the genetic basis of complex diseases. In oncology, GWAS of nearly all common malignancies have been performed, and over 450 genetic variants associated with increased risks have been identified. As well as revealing novel pathways important in carcinogenesis, these studies have shown that common genetic variation contributes substantially to the heritable risk of many common cancers. The clinical application of GWAS is starting to provide opportunities for drug discovery and repositioning as well as for cancer prevention. However, deciphering the functional and biological basis of associations is challenging and is in part a barrier to fully unlocking the potential of GWAS. PMID- 29026207 TI - Citrus peel essential oil nanoformulations to control the tomato borer, Tuta absoluta: chemical properties and biological activity. AB - The repeated use of conventional synthetic pesticides in crop protection leads to resistance development by pests along with a negative impact on the environment, particularly non-target arthropods. Plant-derived active compounds, such as essential oils (EOs), play a key role in sustainably controlling pests. The lethal and sublethal activity of citrus peel EOs as emulsions and included in polyethylene glycol (PEG) nanoparticles (EO-NPs) was determined against the invasive tomato pest Tuta absoluta. Their effects on the plants were also assessed. The results showed an overall good insecticidal activity of the compounds tested, with a higher mortality through contact on eggs and larvae by EO emulsions and through ingestion on larvae by EO-NPs. The nanoformulation also significantly reduced the visible toxic effects on the plants. The data collected suggest that these natural compounds, especially when nanoformulated, could be successfully used in integrated pest management programs for T. absoluta. PMID- 29026208 TI - Targetable fusions of the FRK tyrosine kinase in ALK-negative anaplastic large cell lymphoma. PMID- 29026204 TI - Engineering and physical sciences in oncology: challenges and opportunities. AB - The principles of engineering and physics have been applied to oncology for nearly 50 years. Engineers and physical scientists have made contributions to all aspects of cancer biology, from quantitative understanding of tumour growth and progression to improved detection and treatment of cancer. Many early efforts focused on experimental and computational modelling of drug distribution, cell cycle kinetics and tumour growth dynamics. In the past decade, we have witnessed exponential growth at the interface of engineering, physics and oncology that has been fuelled by advances in fields including materials science, microfabrication, nanomedicine, microfluidics, imaging, and catalysed by new programmes at the National Institutes of Health (NIH), including the National Institute of Biomedical Imaging and Bioengineering (NIBIB), Physical Sciences in Oncology, and the National Cancer Institute (NCI) Alliance for Nanotechnology. Here, we review the advances made at the interface of engineering and physical sciences and oncology in four important areas: the physical microenvironment of the tumour and technological advances in drug delivery; cellular and molecular imaging; and microfluidics and microfabrication. We discussthe research advances, opportunities and challenges for integrating engineering and physical sciences with oncology to develop new methods to study, detect and treat cancer, and we also describe the future outlook for these emerging areas. PMID- 29026210 TI - Bispecific antibody pipeline moves beyond oncology. AB - This corrects the article DOI: 10.1038/nrd.2017.187. PMID- 29026209 TI - WD40 repeat domain proteins: a novel target class? AB - Antagonism of protein-protein interactions (PPIs) with small molecules is becoming more feasible as a therapeutic approach. Successful PPI inhibitors tend to target proteins containing deep peptide-binding grooves or pockets rather than the more common large, flat protein interaction surfaces. Here, we review one of the most abundant PPI domains in the human proteome, the WD40 repeat (WDR) domain, which has a central peptide-binding pocket and is a member of the beta propeller domain-containing protein family. Recently, two WDR domain-containing proteins, WDR5 and EED, as well as other beta-propeller domains have been successfully targeted by potent, specific, cell-active, drug-like chemical probes. Could WDR domains be a novel target class for drug discovery? Although the research is at an early stage and therefore not clinically validated, cautious optimism is justified, as WDR domain-containing proteins are involved in multiple disease-associated pathways. The druggability and structural diversity of WDR domain binding pockets suggest that understanding how to target this prevalent domain class will open up areas of disease biology that have so far resisted drug discovery efforts. PMID- 29026212 TI - Infrared light field imaging system free of fixed-pattern noise. AB - Digital photonic sensors have greatly evolved to maximize sensitivity and spatial, spectral, and temporal imaging resolution. For low-energy photons, new designs have generated new types of noise that degrade the formed-image signal-to noise ratio to values lower than 1. Fixed-pattern noise (FPN), which is produced by the non-uniform focal-plane-array optoelectronics response, is an ill-posed problem in infrared and hyperspectral imaging science. Here, we experimentally show that the FPN behaves as an object at a depth of infinity when a light field is captured by an imaging system. The proposed method is based on the capture of the light field of a scene and digital refocusing to any nearby objects in the scene. Unlike standard techniques for FPN reduction, our method does not require knowledge of the physical parameters of the optoelectronic transducer, the motion scene, or the presence of off-line blackbody sources. The ability of the proposed method to reduce FPN is measured by evaluating the structural similarity (SSIM) index employing a blackbody-based FPN reduction technique as a reference. This new interpretation of the FPN opens avenues to create new cameras for low-energy photons with the ability to perform denoising by digital refocusing. PMID- 29026211 TI - Legacy data sharing to improve drug safety assessment: the eTOX project. AB - The sharing of legacy preclinical safety data among pharmaceutical companies and its integration with other information sources offers unprecedented opportunities to improve the early assessment of drug safety. Here, we discuss the experience of the eTOX project, which was established through the Innovative Medicines Initiative to explore this possibility. PMID- 29026213 TI - Genomic divergence within non-photosynthetic cyanobacterial endosymbionts in rhopalodiacean diatoms. AB - Organelle acquisitions via endosymbioses with prokaryotes were milestones in the evolution of eukaryotes. Still, quite a few uncertainties have remained for the evolution in the early stage of organellogenesis. In this respect, rhopalodiacean diatoms and their obligate cyanobacterial endosymbionts, called spheroid bodies, are emerging as new models for the study of organellogenesis. The genome for the spheroid body of Epithemia turgida, a rhopalodiacean diatom, has unveiled its unique metabolic nature lacking the photosynthetic ability. Nevertheless, the genome sequence of a spheroid body from a single lineage may not be sufficient to depict the evolution of these cyanobacterium-derived intracellular structures as a whole. Here, we report on the complete genome for the spheroid body of Rhopalodia gibberula, a lineage distinct from E. turgida, of which genome has been fully determined. Overall, features in genome structure and metabolic capacity, including a lack of photosynthetic ability, were highly conserved between the two spheroid bodies. However, our comparative genomic analyses revealed that the genome of the R. gibberula spheroid body exhibits a lower non synonymous substitution rate and a slower progression of pseudogenisation than those of E. turgida, suggesting that a certain degree of diversity exists amongst the genomes of obligate endosymbionts in unicellular eukaryotes. PMID- 29026215 TI - Journals should no longer accept 'obesity paradox' articles. PMID- 29026214 TI - Treatment with the TGF-b superfamily cytokine MIC-1/GDF15 reduces the adiposity and corrects the metabolic dysfunction of mice with diet-induced obesity. AB - OBJECTIVES: To test the potential efficacy of recombinant macrophage inhibitory cytokine-1 (MIC-1/GDF15) as an obesity therapeutic. METHODS: Male C57BL/6 J mice, either fed on normal chow or high-fat diet for 16 weeks to induce diet-induced obesity, were infused with either recombinant MIC-1/GDF15 or vehicle for 34 days by osmotic minipump. During the experimental period metabolic parameters were measured. Blood and tissue were collected for analysis of inflammatory markers. RESULTS: MIC-1/GDF15 decreased food intake and body weight of high-fat-fed and chow-fed mice compared with their vehicle-treated control mice. MIC-1/GDF15 reduced body weight, accompanied by greater reduction in fat mass in high-fat-fed mice compared to its effect on chow-fed mice. Further, whilst MIC-1/GDF15-treated chow-fed mice lost lean as well as fat mass, MIC-1/GDF15-treated high-fat-fed mice lost fat mass alone. This reduction in body weight and adiposity was due largely to reduced food intake, but MIC-1/GDF15-treated high-fat-fed mice also displayed increased energy expenditure that may be due to increased thermogenesis. MIC-1/GDF15-treated high-fat-fed mice also had higher circulating level of adiponectin and lower tissue expression, and circulating levels of leptin and inflammatory mediators associated with insulin resistance. Peripheral insulin and glucose intolerance were improved in both MIC-1/GDF15-treated high fat-fed and chow-fed mice compared to that of their vehicle-treated control mice. CONCLUSIONS: MIC-1/GDF15 is highly effective in reducing adiposity and correcting the metabolic dysfunction of mice with high-fat fed. These studies suggest that MIC-1/GDF15 may be a candidate anti-obesity therapeutic. PMID- 29026217 TI - CTRP4: a new member of the adipocytokine family. PMID- 29026216 TI - Associations of maternal and cord blood adipokines with offspring adiposity in Project Viva: is there an interaction with child age? AB - OBJECTIVES: Higher leptin and lower adiponectin correlate with adult and childhood adiposity, but it is unclear how exposure to these adipokines during gestation relates to offspring growth. We aimed to investigate the relationships of maternal and cord adipokines with offspring adiposity across childhood to early adolescence, as well as interactions with child age. METHODS: In mother child pairs in the Project Viva cohort, we measured adipokines in mothers at second trimester (n=1106) and in cord blood at birth (n=657). We measured offspring adiposity indices at early childhood (mean 3.3+/-s.d. 0.3 years), mid childhood (7.9+/-0.8 years) and early adolescence (13.2+/-0.9 years). We analyzed associations of maternal and cord adipokines with offspring longitudinal adiposity using a linear mixed model adjusting for pre-pregnancy body mass index (BMI), gestational weight gain (GWG), and other confounders. RESULTS: Mothers with higher BMI and GWG had higher leptin. Offspring born to mothers with the highest vs lowest quartile of leptin had lower BMI z-score (-0.49 units, 95% confidence interval (CI):-0.72,-0.26), waist circumference (-2.6 cm, 95% CI: 3.7,-1.5) and sum of subscapular and triceps skinfolds (-2.8 mm, 95% CI: -4.1, 1.4) in early life. An interaction term between maternal leptin and child age was positive, suggesting that the associations between maternal leptin and child adiposity were not constant over time. Offspring born to mothers with lowest vs highest quartile of maternal adiponectin had lower early life adiposity (BMI z score -0.27 units, 95% CI: -0.48,-0.05). Results were similar for cord leptin but not cord adiponectin. CONCLUSIONS: Our findings showed higher maternal and cord leptin, and lower maternal adiponectin are associated with lower offspring adiposity from childhood to early adolescence, independent of maternal BMI and GWG. However, the strength of these associations was not constant over time. PMID- 29026218 TI - IgD class switch recombination is not controlled through the immunoglobulin heavy chain 3' regulatory region super-enhancer. PMID- 29026219 TI - Regulation of B-1a cells: another novel function of the basic helix-loop-helix transcriptional regulator BHLHE41. PMID- 29026220 TI - Perspectives: 'Patients with 40-60/day habits are now few and far between'. PMID- 29026221 TI - Articaine: friend or foe? AB - Articaine and neurotoxicity - a review. PMID- 29026225 TI - Unsupported conclusions. PMID- 29026224 TI - Oral surgery II: Part 2. The maxillary sinus (antrum) and oral surgery. AB - The maxillary sinus is the largest of the four paranasal sinuses and, being anatomically adjacent to the dentate region of the maxilla, is commonly a source of problems - not simply in terms of conditions affecting the sinus but also in establishing an accurate diagnosis. As anyone who has suffered both sinusitis and a dental abscess in the posterior maxilla will tell you, the symptoms are almost indistinguishable. For this reason, a sound understanding of the maxillary sinus is an essential requisite for all dentists. PMID- 29026229 TI - Erratum: Quick release mechanism. AB - This corrects the article DOI: 10.1038/sj.bdj.2017.691. PMID- 29026228 TI - Focal infection revisited - the swinging of the pendulum. AB - A historical review, focusing not only on disease, but also on the relationship between the medical and dental professions. PMID- 29026230 TI - Dental radiography: Short roots. PMID- 29026231 TI - Oral surgery: The drug holiday. PMID- 29026232 TI - Changing the dental landscape. PMID- 29026233 TI - Trends in dental caries in children and adolescents according to poverty status in the United States from 1999 through 2004 and 2011 through 2014. AB - Study shows an improving trend in child dental health in the USA and indicates that targeted interventions may be successful. PMID- 29026234 TI - Compliance with the guide for commissioning oral surgery: an audit and discussion. AB - Introduction The Guide for commissioning oral surgery and oral medicine published by NHS England (2015) prescribes the level of complexity of oral surgery and oral medicine investigations and procedures to be carried out within NHS services. These are categorised as Level 1, Level 2, Level 3A and Level 3B. An audit was designed to ascertain the level of oral surgery procedures performed by clinicians of varying experience and qualification working in a large oral surgery department within a major teaching hospital.Materials and methods Two audit cycles were conducted on retrospective case notes and radiographic review of 100 patient records undergoing dental extractions within the Department of Oral Surgery at King's College Dental Hospital. The set gold standard was: '100% of Level 1 procedures should be performed by dental undergraduates or discharged back to the referring general dental practitioner'. Data were collected and analysed on a Microsoft Excel spreadsheet. The results of the first audit cycle were presented to all clinicians within the department in a formal meeting, recommendations were made and an action plan implemented prior to undertaking a second cycle.Results The first cycle revealed that 25% of Level 1 procedures met the set gold standard, with Level 2 practitioners performing the majority of Level 1 and Level 2 procedures. The second cycle showed a marked improvement, with 66% of Level 1 procedures meeting the set gold standard.Conclusion Our audit demonstrates that whilst we were able to achieve an improvement with the set gold standard, several barriers still remain to ensure that patients are treated by the appropriate level of clinician in a secondary care setting. We have used this audit as a foundation upon which to discuss the challenges faced in implementation of the commissioning framework within both primary and secondary dental care and strategies to overcome these challenges, which are likely to be encountered in any NHS care setting in which oral surgery procedures are performed. PMID- 29026235 TI - Health policy: Hospital cutbacks. PMID- 29026237 TI - Parental perception of oral health-related quality of life of Syrian refugee children. AB - A questionnaire- and interview-based study concerning access to dental care is limited in refugee camps. PMID- 29026240 TI - Alternative sugars: Honey. PMID- 29026244 TI - Oral health: Treating refugees. PMID- 29026248 TI - Spotting the signs. AB - The impact of bulimia nervosa on oral health: A review of the literature. PMID- 29026250 TI - Thousands of new oral health educators. AB - Oral health promotion in the community pharmacy: an evaluation of a pilot oral health promotion intervention. PMID- 29026253 TI - Paula Moynihan: 'We really need to look at a holistic, systemic approach'. PMID- 29026255 TI - Robert W McCarley-Pre-eminent Researcher, Mentor, and Friend. PMID- 29026256 TI - Jaak Panksepp: Pioneer of Affective Neuroscience. PMID- 29026257 TI - Fronto-Striatal Glutamate in Autism Spectrum Disorder and Obsessive Compulsive Disorder. AB - This corrects the article DOI: 10.1038/npp.2016.260. PMID- 29026258 TI - Comparison of High-Pressure Behavior of Physicochemical Properties of the Di- and Triacylglycerols Established by Ultrasonic Methods. AB - Two samples of triacylglycerols i.e., olive oil and triolein, and one sample of diacylglycerol were investigated. In the course of compression, the density of the samples was determined by measurements of the change of piston position in a pressure chamber and volume correction due to chamber expansion under pressure. The speed of sound was evaluated from the time of flight of an ultrasonic impulse between emitting and receiving transducers placed in the high pressure chamber. The adiabatic compressibility, the intermolecular free length, the molar volume, the van der Waals' constant b and the surface tension were evaluated from the density, the speed of sound and the average molecular mass. All tested liquids undergo a high-pressure phase transition. Discontinuities in the measured isotherms of the physicochemical parameters of the investigated oils indicate the presence of high-pressure phase transitions. Moreover the time dependent change of pressure at constant volume during the phase transition was measured. The fundamental difference in the molecular structure of these acylglycerols influences their behavior significantly under high pressure. PMID- 29026259 TI - Identification of a TBHQ-Interfering Peak in Crude Canola Oil Using AOCS Official Method Ce 6-86 and its Chromatographic Resolution. AB - AOCS Official Method Ce 6-86 "Antioxidants, Liquid Chromatographic Method" was originally developed to confirm the correct antioxidant was added at the specified concentration to refined oils. Today, this method is increasingly utilized to validate that antioxidants are absent from oil products. False positive results can have a significant impact on the ability to sell products in specific markets and can impart additional business expenditures for conclusive secondary analyses. In the current work, quantification of tert-butylhydroquinone (TBHQ) in crude canola/rapeseed oil using liquid chromatography (LC) with ultraviolet (UV) detection was compromised by an interfering peak. Analyses using liquid chromatography-mass spectrometry (GC-MS) and high-resolution accurate mass LC-MS identified the interferent as 2,6-dimethoxy-4-vinylphenol (canolol), an endogenous compound present in crude canola/rapeseed oil. Resolution of canolol and TBHQ using LC-UV can be achieved via minor modification of the chromatographic conditions. PMID- 29026260 TI - Leisure Noise and Hearing. PMID- 29026262 TI - Personal Listening Devices in Australia: Patterns of Use and Levels of Risk. AB - Personal listening devices (PLDs) have the potential to increase the risk of noise-induced hearing loss (NIHL) for users. The present study aimed to investigate the nature and extent of the risk posed, by describing the user profile of a PLD population, identifying listening habits of that population, and examining whether PLD risk status is associated with hearing damage. A sample of 4,185 Australian PLD users completed an online survey about listening behaviors and hearing health. Listeners were characterized as low, high, or very high-risk based on daily noise dose estimates calculated from self-reported listening volume and durations. Listening patterns and hearing difficulties were examined in relation to risk status. Results indicated differences in listening volumes and durations with respect to age, with higher listening volumes reported for environments with greater background noise. Fifteen percent of participants' usage was classified as posing a potential risk to hearing, with a significantly greater proportion of younger people in higher-risk categories. Forty-one percent of participants reported feeling they have a hearing loss, with ~20% reporting difficulties with speech in noise. For 18- to 35-year-olds, higher-risk status was associated with a greater proportion of self-reported hearing difficulties, including perceived poorer speech perception. These results have implications for hearing health promotion activities and suggest that messages should focus on either volume levels or durations depending on the particular activity in which the PLD is used. In addition, the results underline the importance of placing PLD exposure in the context of individuals' wider noise exposure. Although PLD use alone is not placing the majority of users at risk, it may be increasing the likelihood that individuals' cumulative noise exposure will exceed safe levels. PMID- 29026261 TI - Prevention of Noise-Induced Hearing Loss from Recreational Firearms. AB - In the United States and other parts of the world, recreational firearm shooting is a popular sport that puts the hearing of the shooter at risk. Peak sound pressure levels (SPLs) from firearms range from ~140 to 175 dB. The majority of recreational firearms (excluding small-caliber 0.17 and 0.22 rifles and air rifles) generate between 150 and 165 dB peak SPLs. High-intensity impulse sounds will permanently damage delicate cochlear structures, and thus individuals who shoot firearms are at a higher risk of bilateral, high-frequency, noise-induced hearing loss (NIHL) than peer groups who do not shoot. In this article, we describe several factors that influence the risk of NIHL including the use of a muzzle brake, the number of shots fired, the distance between shooters, the shooting environment, the choice of ammunition, the use of a suppressor, and hearing protection fit and use. Prevention strategies that address these factors and recommendations for specialized hearing protectors designed for shooting sports are offered. Partnerships are needed between the hearing health community, shooting sport groups, and wildlife conservation organizations to develop and disseminate accurate information and promote organizational resources that support hearing loss prevention efforts. PMID- 29026263 TI - Effects of Recreational Noise on Threshold and Suprathreshold Measures of Auditory Function. AB - Noise exposure that causes a temporary threshold shift but no permanent threshold shift can cause degeneration of synaptic ribbons and afferent nerve fibers, with a corresponding reduction in wave I amplitude of the auditory brainstem response (ABR) in animals. This form of underlying damage, hypothesized to also occur in humans, has been termed synaptopathy , and it has been hypothesized that there will be a hidden hearing loss consisting of functional deficits at suprathreshold stimulus levels. This study assessed whether recreational noise exposure history was associated with smaller ABR wave I amplitude and poorer performance on suprathreshold auditory test measures. Noise exposure histories were collected from 26 men and 34 women with hearing thresholds <= 25 dB hearing loss (HL; 250 Hz to 8 kHz), and a variety of functional suprathreshold hearing tests were performed. Wave I amplitudes of click-evoked ABR were obtained at 70, 80, 90, and 99 dB (nHL) and tone-burst evoked ABR were obtained at 90 dB nHL. Speech recognition performance was measured in quiet and in competing noise, using the Words in Noise test, and the NU-6 word list in broadband noise (BBN). In addition, temporal summation to tonal stimuli was assessed in quiet and in competing BBN. To control for the effects of subclinical conventional hearing loss, distortion product otoacoustic emission amplitude, an indirect measure of outer hair cell integrity, was measured. There was no statistically significant relationship between noise exposure history scores and ABR wave I amplitude in either men or women for any of the ABR conditions. ABR wave I amplitude and noise exposure history were not reliably correlated with suprathreshold functional hearing tests. Taken together, this study found no evidence of noise-induced decreases in ABR wave I amplitude or signal processing in noise in a cohort of subjects with a history of recreational noise exposure. PMID- 29026264 TI - More to Lose? Noise-Risk Perceptions of Young Adults with Hearing Impairment. AB - This study investigated the attitudes and behaviors of young adults with hearing impairment (HI), in relation to leisure noise. It was hypothesized that young people with HI would have more negative perceptions of noise exposure than their peers with nonimpaired (normal) hearing (NH) and would engage more frequently in self-protective behaviors. Questionnaires were administered as part of a larger study of young Australians with: (1) preadult onset HI and (2) NH. Data from adults (age range 18 to 24 years; n = 79 with HI, n = 131 with NH) were selected for the current analysis. Attitudes data for HI and NH groups were compared using chi-square tests, and the reported use of hearing aids and personal hearing protectors (PHPs) in leisure environments was quantified. Most participants with HI and NH regarded leisure noise as a health hazard but rated their own noise-injury risk as lower than that of their peer group. The use of PHPs was low overall, and many participants with HI reported using hearing aids (switched on) during noisy leisure activities. An equal and substantial proportion of participants with HI and NH reported dislike and avoidance of loud activities. Systematic noise management in leisure environments would address noise-injury risk and also enhance social participation. PMID- 29026265 TI - Attitudes, Risk Behavior, and Noise Exposure among Young Adults with Hearing Problems: Identifying a Typology. AB - This study explored attitudes toward leisure noise, use of hearing protection, and perceived susceptibility to leisure-noise damage in young adults with hearing problems. Twelve participants aged between 18 and 35 years took part in a semistructured interview. Data were analyzed using framework analysis. The results showed that a positive attitude to noise, a passion for loud music, a lack of knowledge of the consequences of noise damage, and perceived low risk of hearing problems were associated with people not using earplugs. The aesthetics, comfort, perceived effects on music quality and attitude of others were all barriers to earplug use. Of those who had used earplugs, previous hearing-related symptoms and concern about future hearing damage were the main motivators for use. Four types of people were identified to describe the variation in attitudes and behaviors: those who had no change in behavior or concern about damage; those who were concerned and used earplugs; those who were concerned and avoided loud venues; and those who were concerned about communication difficulties only. Considering the wide variability, it may be more effective to shift attention from trying to change individual attitudes and behaviors to considering systemic changes to protect hearing, through ensuring the music industry and relevant authorities take greater responsibility. PMID- 29026266 TI - Understanding Why People Enjoy Loud Sound. AB - Sounds at levels that can injure the ear are regarded as enjoyable by many people. In many societies, a common form of this behavior is listening to loud music, either via personal audio systems or at music venues. Drawing on theory from the literature around loud sound and emotional responses to music, and combining it with concepts of physiological sound adaptation and classical conditioning, we developed a model of the process that may underlie people's enjoyment of loud sound, particularly loud music in nightclubs. The Conditioning, Adaptation, and Acculturation to Loud Music (CAALM) model proposes that the benefits associated with loud sound, alongside other desirable aspects of nightclubs, provide the unconditioned stimuli. Over time regular clubbers become conditioned to enjoy loud sound in itself. Exposure to loud sound also causes adaptation within the auditory system, so there is both a desire for, and tolerance of, loud sound during leisure time. This sets up an expectation of loud music as a cultural norm, and staff of leisure venues, who are themselves part of that culture, set music levels to meet customer expectations; and a cycle is perpetuated. This theory may be a useful consideration for health promotion and hearing conservation interventions. PMID- 29026267 TI - Control of reaction-diffusion equations on time-evolving manifolds. AB - Among the main actors of organism development there are morphogens, which are signaling molecules diffusing in the developing organism and acting on cells to produce local responses. Growth is thus determined by the distribution of such signal. Meanwhile, the diffusion of the signal is itself affected by the changes in shape and size of the organism. In other words, there is a complete coupling between the diffusion of the signal and the change of the shapes. In this paper, we introduce a mathematical model to investigate such coupling. The shape is given by a manifold, that varies in time as the result of a deformation given by a transport equation. The signal is represented by a density, diffusing on the manifold via a diffusion equation. We show the non-commutativity of the transport and diffusion evolution by introducing a new concept of Lie bracket between the diffusion and the transport operator. We also provide numerical simulations showing this phenomenon. PMID- 29026268 TI - Characteristic clinical features of adipsic hypernatremia patients with subfornical organ-targeting antibody. AB - Adipsic hypernatremia is a rare disease presenting as persistent hypernatremia with disturbance of thirst regulation and hypothalamic dysfunction. As a result of congenital disease, tumors, or inflammation, most cases are accompanied by structural abnormalities in the hypothalamic-pituitary area. While cases with no hypothalamic-pituitary structural lesion have been reported, their etiology has not been elucidated. Recently, we reported three patients with adipsic hypernatremia whose serum-derived immunoglobulin (Ig) specifically reacted with mouse subfornical organ (SFO) tissue. As one of the circumventricular organs (CVOs) that form a sensory interface between the blood and brain, the SFO is a critical site for generating physiological responses to dehydration and hypernatremia. Intravenous injection of the patient's Ig fraction induced hypernatremia in mice, along with inflammation and apoptosis in the SFO. These results support a new autoimmunity-related mechanism for inducing adipsic hypernatremia without demonstrable hypothalamic-pituitary structural lesions. In this review, we aim to highlight the characteristic clinical features of these patients, in addition to etiological mechanisms related to SFO function. These findings may be useful for diagnosing adipsic hypernatremia caused by an autoimmune response to the SFO, and support development of new strategies for prevention and treatment. PMID- 29026270 TI - Longitudinal study on the effectiveness of vitamin D supplements in exclusively breast-fed infants. AB - Vitamin D deficiency is a common health problem in infancy. Breast-fed infants are at a higher risk of rickets than formula-fed infants. We observed fluctuations in vitamin D levels in infancy (phase I, 2009-2010) and considered the benefits of vitamin D supplementation specifically in exclusively breast-fed infants in Japan (phase II, 2015). Infants born at our hospital were enrolled in this study. In phase I, we measured 25-hydroxyvitamin D [25(OH)D] levels at 1- to 6-mo intervals from birth. In phase II, we measured 25(OH)D levels before and after supplementation. Vitamin D deficiency was defined as 25(OH)D levels of < 20 ng/mL. All 38 infants in phase I were deficient at birth, and none of the exclusively breast-fed infants achieved 25(OH)D sufficiency by 5 mo of age. Formula-fed infants achieved 25(OH)D sufficiency earlier. The majority of the 71 infants in phase II were deficient at birth. We recommended an oral vitamin D supplement at a daily dose of 4.0 ug for the 15 exclusively breast-fed infants, starting at 1 mo of age; 14 (93.3%) of them achieved 25(OH)D sufficiency by 5 months of age. Exclusively breast-fed infants are at a high risk of vitamin D deficiency; adequate supplementation is an effective preventative strategy. PMID- 29026269 TI - Clinical characteristics of septo-optic dysplasia accompanied by congenital central hypothyroidism in Japan. AB - Septo-optic dysplasia (SOD) is a congenital anomaly in which agenesis of the septum pellucidum and optic nerve hypoplasia are accompanied by hypopituitarism. Typically, the symptoms develop in 3 organs, the brain, eyes, and pituitary, and approximately one third of the patients present with all of the three cardinal features. The diagnostic criteria for SOD were established in Japan in 2015. The purpose of this study is to review clinical features regarding SOD patients with hypopituitarism in Japan. In this study, 21 patients with SOD were identified by a questionnaire survey for congenital central hypothyroidism. All 3 symptoms of SOD, agenesis of the septum pellucidum, optic nerve hypoplasia, and endocrine abnormalities, were noted in 8 of the 21 patients. Various combinations of pituitary hormone deficiencies were observed in patients with SOD, although SOD is a rare, heterogeneous, and phenotypically variable disorder, some patients develop hypoglycemia and convulsions after birth, and early intervention with hormone replacement is necessary in severe cases. In addition, 14 cases were complicated by both developmental delay and epilepsy, and 16 cases involved eye abnormalities. Therefore, in addition to an early endocrinological diagnosis and hormone replacement, consultation with both pediatric neurologists and pediatric ophthalmologists is necessary. PMID- 29026271 TI - Acanthosis nigricans in a Japanese boy with hypochondroplasia due to a K650T mutation in FGFR3. AB - Acanthosis nigricans (AN) is observed in some cases of skeletal dysplasia. However, AN has occasionally been reported in patients with hypochondroplasia (HCH), and a clinical diagnosis is sometimes difficult when its physical and radiological features are mild. Mutations in the gene encoding the fibroblast growth factor receptor 3 (FGFR3) have been identified as the cause of some types of skeletal dysplasia, which is diagnostically useful. Here, we report the case of a 3-yr-old Japanese boy who presented with AN. His height, weight, head circumference, and arm span were 91.7 cm (-1.95 SD), 16.3 kg, 54.0 cm (+2.6 SD), and 88.0 cm, respectively. In addition to the AN, he also exhibited a mild height deficit and macrocephaly, which prompted a search for FGFR3 mutations, although no skeletal disproportion, exaggerated lumbar lordosis, or facial dysmorphism was observed, and only slight radiological abnormalities were noted. A definitive diagnosis of HCH was made based on FGFR3 gene analysis, which detected a heterozygous K650T mutation. Insulin insensitivity was not found to have contributed to the development of AN. In individuals with AN, careful assessments for symptoms of HCH are important, regardless of the presence or absence of a short stature, and FGFR3 gene analysis is recommended in such cases. PMID- 29026273 TI - Detection of early stage medullary thyroid carcinoma by measuring serum calcitonin using an electro chemiluminescence immuno-assay: A case report of a young Japanese woman with a high-risk RET mutation. AB - Medullary thyroid carcinoma (MTC) in multiple endocrine neoplasia type 2 (MEN2) is an autosomal dominant disorder caused by the mutation of the RET proto oncogene, that shows nearly complete penetration. The American Thyroid Association guidelines recommend prophylactic thyroidectomy for patients with high-risk RET mutations. However, in Japan, ethical and medical issues may preclude prophylactic treatment in young patients. Hence, an early diagnosis of MTC is necessary to ensure a favorable outcome. Here, we report the case of a young Japanese girl with a high-risk RET mutation, diagnosed with very early stage MTC using serum calcitonin (Ctn) values measured using an electro chemiluminescence immuno-assay (ECLIA). The Japanese girl with a family history of MEN2 had been followed at our hospital since she was 5-mo-old. RET analysis revealed that she displayed a Cys634Gly mutation. The patient underwent annual neck ultrasonography and calcium infusion testing. When she was 8-yr-old, the Ctn level, measured using ECLIA, dramatically increased with calcium stimulation, from a baseline of 11.3 pg/mL to 333 pg/mL. She subsequently underwent total thyroidectomy and was diagnosed with stage I MTC. Detecting early stage MTC by monitoring serum Ctn measured by ECLIA, may represent a useful strategy for patients with high-risk RET mutations. PMID- 29026272 TI - Incidence of diabetes mellitus and neoplasia in Japanese short-statured children treated with growth hormone in the Genetics and Neuroendocrinology of Short Stature International Study (GeNeSIS). AB - The primary goal of the Genetics and Neuroendocrinology of Short Stature International Study (GeNeSIS) was to assess the safety and effectiveness of Humatrope(r), a GH preparation, in the treatment of pediatric patients with short stature. We report our findings in the GH-treated Japanese pediatric population focusing on the incidence of type 2 diabetes (T2D) and occurrence of neoplasms. A total of 2,345 Japanese patients were assessed for safety. During a mean observation period of 3.2 yr, T2D occurred in 3 patients (0.13%) and slowly progressive insulin-dependent diabetes mellitus (SPIDDM) related to underlying mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) in 1 patient (0.04%). Neoplasms were reported in 13 patients (0.56%), including 1 patient with brain tumor (germinoma) and 5 with craniopharyngiomas (4 recurrences); the remainder were benign, typically dermatological, neoplasms. The incidence of diabetes mellitus determined in the study did not differ from previous reports in GH-treated pediatric patients, and there was no apparent increase in the risk of new neoplastic lesions or malignant tumors. PMID- 29026274 TI - A case of an infant with congenital combined pituitary hormone deficiency and normalized liver histology of infantile cholestasis after hormone replacement therapy. AB - Congenital combined pituitary hormone deficiency (CPHD) may present with cholestasis in the neonate or during early infancy. However, its precise mechanism is unknown. A 3-mo-old boy presented with cryptorchidism and hypoplastic scrotum after birth. Neonatal jaundice was noted but temporarily improved with phototherapy. Jaundice recurred at 2 mo of age. Elevated direct bilirubin (D-Bil) and liver dysfunction were found but cholangiography showed no signs of biliary atresia (BA). Liver biopsy findings showed giant cell formation of hepatocytes with hypoplastic bile ducts. Subsequent magnetic resonance imaging (MRI) of the head revealed a hypoplastic pituitary gland with an ectopic posterior lobe, and the patient was diagnosed with congenital CPHD based on decreased secretion of cortisol and GH by the pituitary anterior lobe load test. D-Bil levels promptly improved after hydrocortisone (HDC) replacement. We subsequently began replacement with levothyroxine (L-T4) and GH, and liver histology showed normal interlobular bile ducts at 8 mo old. This is the first case report of proven histological improvement after hormone replacement therapy. This suggested that pituitary-mediated hormones, especially cortisol, might be involved in the development of the bile ducts. PMID- 29026275 TI - A case of 45,X/47,XXX mosaic Turner syndrome with limb length discrepancy. AB - Patients with Turner syndrome (TS) frequently show short stature and skeletal deformities, such as kyphosis and scoliosis. However, to the best of our knowledge, limb length discrepancy (LLD) has not yet been reported in patients with TS. The case of a 12-yr-old girl with 45,X/47,XXX mosaic TS showing LLD is herein presented. She was on GH therapy for short stature and was noted to have scoliosis in the standing position at a regular examination; however, the scoliosis became less evident in the supine position, which is indicative of LLD. The length of the left leg was 5.0 cm shorter than that of the right leg when measured. She was referred to orthopedics and underwent right distal femoral and right proximal tibial staple epiphysiodesis to shorten the abnormally long limb at 10 yr 6 mo of age. One year after the operation, the LLD decreased from 5.0 to 1.5 cm. During this period, GH was continued. LLD is a rare complication in TS, but when patients with TS show scoliosis in the standing position, re-evaluation for scoliosis in the supine position should be performed and the lengths of both legs should be measured. PMID- 29026276 TI - Five cases of childhood-onset Graves' disease treated with either surgery or radio-iodine therapy. AB - There are three major therapeutic options for the treatment of Graves' disease (GD): antithyroid drugs (ATDs), thyroidectomy, and radio-iodine (RAI) therapy. ATDs are the initial treatment option for children. However, some pediatric GD patients who are initially treated with ATDs require other type of treatments later on. We reviewed the medical records of childhood-onset GD cases retrospectively to report the clinical course of patients who received either surgery or RAI therapy subsequent to treatment with ATDs. Childhood-onset GD was successfully managed in five girls with non-ATD treatments at the age of 7-14 yr following an unfavorable outcome of initial ATD treatment. Four cases had surgery and one case was managed with RAI therapy. The reasons for switching to non-ATD treatment included poor compliance, failure to maintain remission, serious adverse events resulting from ATDs, and religious background. In conclusion, surgery and RAI therapy could be good alternative treatment options for children with GD. PMID- 29026277 TI - Novel splice site mutation in GATA3 in a patient with HDR syndrome. PMID- 29026278 TI - A Japanese boy with fructose-1,6-bisphosphatase deficiency who had a novel FBP1 mutation (p.Phe90Val). PMID- 29026279 TI - Inertial proximal alternating minimization for nonconvex and nonsmooth problems. AB - In this paper, we study the minimization problem of the type [Formula: see text], where f and g are both nonconvex nonsmooth functions, and R is a smooth function we can choose. We present a proximal alternating minimization algorithm with inertial effect. We obtain the convergence by constructing a key function H that guarantees a sufficient decrease property of the iterates. In fact, we prove that if H satisfies the Kurdyka-Lojasiewicz inequality, then every bounded sequence generated by the algorithm converges strongly to a critical point of L. PMID- 29026280 TI - M-test in linear models with negatively superadditive dependent errors. AB - This paper is concerned with the testing hypotheses of regression parameters in linear models in which errors are negatively superadditive dependent (NSD). A robust M-test base on M-criterion is proposed. The asymptotic distribution of the test statistic is obtained and the consistent estimates of the redundancy parameters involved in the asymptotic distribution are established. Finally, some Monte Carlo simulations are given to substantiate the stability of the parameter estimates and the power of the test, for various choices of M-methods, explanatory variables and different sample sizes. PMID- 29026281 TI - Quadratic convergence of monotone iterates for semilinear elliptic obstacle problems. AB - In this paper, we consider the numerical solution for the discretization of semilinear elliptic complementarity problems. A monotone algorithm is established based on the upper and lower solutions of the problem. It is proved that iterates, generated by the algorithm, are a pair of upper and lower solution iterates and converge monotonically from above and below, respectively, to the solution of the problem. Moreover, we investigate the convergence rate for the monotone algorithm and prove quadratic convergence of the algorithm. The monotone and quadratic convergence results are also extended to the discrete problems of the two-sided obstacle problems with a semilinear elliptic operator. We also present some simple numerical experiments. PMID- 29026282 TI - Hybrid Single-Port Cholecystectomy Vs Four-Port Cholecystectomy in Children. AB - BACKGROUND AND OBJECTIVES: Evidence is increasing that single-port or single incision laparoscopic cholecystectomy is a safe and feasible alternative for cholecystectomy in children. In this study, we sought to compare the single-port hybrid technique, which we originally reported in 2012, with the conventional 4 port approach, in regards of complications, outcome, operative time and cost. METHODS: A retrospective, single-center comparison of hybrid single-port versus conventional 4-port laparoscopic cholecystectomy was performed in 98 consecutive pediatric patients between January 2010 and October 2014. Patient characteristics, intra- and postoperative outcomes, operative costs, and total hospitalization costs were compared between the 2 approaches using univariate and multivariate analyses. RESULTS: The single-port technique was utilized in 56 (57%) pediatric patients who underwent laparoscopic cholecystectomy. The operative time for single-port procedures was shorter than that of the conventional technique (median, 85 minutes vs 114 minutes; P = .003). Patients with single-port procedures were less likely to have a cholangiogram compared to patients who underwent 4-port cholecystectomy. (9% vs 40%; P < .001). No statistically significant differences between the 2 cohorts were observed for intra- or postoperative outcomes. Although the 2 groups shared nearly the same median duration of hospitalization (22 hours vs 21 hours; P = .70), the single port group demonstrated a lower total cost of hospitalization (median cost, $7438 vs $8783; P = .030) and lower operative cost (median, $3918 vs $4647; P < .001). CONCLUSION: Hybrid single-port laparoscopic cholecystectomy in children with uncomplicated gallbladder disease is feasible and equally safe, with similar intra- and postoperative outcomes compared with the conventional 4-port approach. It can contribute to global cost reduction because of lower operative and total hospitalization costs. PMID- 29026283 TI - Outcomes study between femtosecond laser-assisted cataract surgery and conventional phacoemulsification surgery using an active fluidics system. AB - PURPOSE: The purpose of this study was to compare intraoperative parameters between femtosecond laser-assisted cataract surgery (FLACS) and conventional phacoemulsification using Centurion(r) Vision System with Active Fluidics. SETTING: This study was performed at Brasilia Ophthalmologic Hospital, Brasilia, Federal District, Brazil. PATIENTS AND METHODS: This was a prospective randomized comparative study. Patients with the diagnosis of cataract and surgical extraction programmed were divided into two groups: conventional phacoemulsification and FLACS. Intraoperative data were collected and submitted for statistical analysis. RESULTS: A total of 400 eyes were enrolled, 200 in each group. There were no surgical complications. Groups were statistically equivalent in age and nucleus density. Cumulative dissipated energy and torsional time were significantly reduced in the FLACS group. Conventional surgery had less fluid usage, total case time and aspiration (ASP) time. CONCLUSION: FLACS with Active Fluidics System can reduce the ultrasound energy use during cataract surgery, in spite of increasing case time, fluid usage and ASP time. PMID- 29026284 TI - Anti-vascular endothelial growth factor therapy for the treatment of myopic choroidal neovascularization. AB - Myopic choroidal neovascularization (CNV) is a sight-threatening condition which occurs in eyes with myopia, particularly in those with pathologic myopia. It is the most common cause of CNV among patients younger than 50 years. Hemorrhage and exudation from the CNV lesion may eventually result in scarring or chorioretinal atrophy. While myopic CNV was previously treated with focal laser photocoagulation or photodynamic therapy (PDT), the current treatment of choice is anti-vascular endothelial growth factor (VEGF) agents. Many studies have demonstrated the efficacy of intravitreal anti-VEGF agents in the treatment of myopic CNV. The RADIANCE study reported that intravitreal ranibizumab was superior to PDT in eyes with myopic CNV (at 3 months, both groups receiving intravitreal ranibizumab gained 10.5 and 10.6 letters vs 2.2 letters among patients receiving PDT). In addition, the study demonstrated similar visual outcomes in eyes treated on the basis of visual acuity stabilization or disease activity criteria. Other clinical studies have provided evidence for the efficacy of ranibizumab and aflibercept in the treatment of myopic CNV. This review addresses the epidemiology, pathophysiology, and imaging characteristics of myopic CNV, and discusses the evidence for the efficacy of anti-VEGF agents as compared to laser photocoagulation and PDT. PMID- 29026285 TI - Efficacy of 0.05% epinastine and 0.1% olopatadine for allergic conjunctivitis as seasonal and preseasonal treatment. AB - PURPOSE: To evaluate the efficacy and safety of 0.05% epinastine and 0.1% olopatadine eye drop preparations as seasonal and preseasonal treatments in patients with seasonal allergic conjunctivitis (SAC). SUBJECTS AND METHODS: This was a prospective, randomized, case-control study involving two institutions. The subjects were patients diagnosed with SAC at two institutions between February and March in 2014. To examine the clinical effects of seasonal treatment, 0.05% epinastine and 0.1% olopatadine were administered, and their effects were investigated every 2 weeks (Stage 1). To evaluate the clinical effects of preseasonal therapy, in January 2015, the same eye drop preparations as adopted in Stage 1 were administered to patients who had participated in Stage 1 and provided consent to participate in this study, and their effects were investigated every month (Stage 2). RESULTS: In Stage 1, the 0.05% epinastine group consisted of 43 patients, and the 0.1% olopatadine group consisted of 42 patients. There were significant improvements in the total symptom and objective finding scores at each time point after administration in comparison with those before its baseline, but there were no significant differences between the two groups. In Stage 2, the 0.05% epinastine group consisted of 15 patients, and the 0.1% olopatadine group consisted of 14 patients. The rate of change in the total symptom score in comparison with that at the baseline of preseasonal treatment was significantly higher in the 0.1% olopatadine group 1 month after the start of treatment, suggesting symptom deterioration (P=0.025). There was no significant difference in the rate of change in the total objective finding score between the two groups. CONCLUSION: Seasonal treatment with 0.05% epinastine or 0.1% olopatadine was equally effective for patients with allergic conjunctivitis. However, for preseasonal therapy, 0.05% epinastine was more effective than 0.1% olopatadine. PMID- 29026286 TI - Intraoperative optical coherence tomography and ab interno trabecular meshwork surgery with the Trabectome. AB - IMPORTANCE: This study is the first description of the use of the intraoperative optical coherence tomography (iOCT) for trabecular meshwork surgery with the Trabectome in a regular clinical setting. BACKGROUND: The aim of this study is to evaluate intraoperatively the immediate success of ab interno trabeculotomy with the Trabectome defined as a removal of the trabecular meshwork. DESIGN: This is a retrospective clinical study performed in the University Eye Hospital, Medical School Hannover. PARTICIPANTS: A total of nine consecutive Caucasian patients suffering from primary open angle glaucoma, pigment dispersion glaucoma, or pseudoexfoliation glaucoma took part in the study. METHODS: All patients underwent ab interno trabeculotomy surgery with the Trabectome using a commercially available iOCT to visualize the anterior chamber angle (ACA) before and after the procedure. The visualization was done using a modified Swan-Jacobs lens (all nine patients) or without lens (view from above, five patients). MAIN OUTCOME MEASURES: The main outcome of this study is the success of visualization of the ACA on iOCT, especially the postprocedural visualization of the wound gap after removal of the trabecular meshwork. RESULTS: Using the view from above, the ACA could be visualized before and after the procedure in only two of the five cases. Using the modified Swan-Jacobs lens, the ACA could be visualized before the procedure and the trabecular meshwork opening after the procedure in all nine patients. CONCLUSION: The iOCT can be used to objectify the immediate success of the surgical procedure, ie, the removal of the trabecular meshwork, of ab interno trabeculotomy with the Trabectome. The procedure itself cannot be captured sufficiently via iOCT. PMID- 29026287 TI - Ocular pharmacokinetics and tolerability of bimatoprost ophthalmic solutions administered once or twice daily in rabbits, and clinical dosing implications. AB - PURPOSE: Fixed-combination medications can benefit patients requiring multiple agents to lower their intraocular pressure (IOP), but combining agents with complementary mechanisms of action is challenging if their dosing frequency differs. This study compares in vivo pharmacokinetic and ocular tolerability of bimatoprost 0.01% ophthalmic solutions dosed once or twice daily. Reports of twice-daily dosing in glaucoma patients are also reviewed. METHODS: New Zealand White rabbits were administered bimatoprost 0.01% monotherapy or fixed combination bimatoprost 0.01%/brimonidine 0.1%, once or twice daily in both eyes for 4 days. Ocular tissues were harvested and analyzed by liquid chromatography tandem mass spectrometry. The pharmacokinetic parameters calculated included maximum observed concentration, time to maximum concentration, and area under the concentration-time curve. RESULTS: Due to extensive metabolism, bimatoprost concentration was below the quantitation limit by 1 hour post-dose in all samples. Bimatoprost acid exposure, however, could be measured up to 6-8 hours post-dose and was similar in the aqueous humor and iris-ciliary body (pharmacological site of action) of animals treated once or twice daily with either bimatoprost 0.01% or fixed-combination bimatoprost 0.01%/brimonidine 0.1%. Increasing dosage frequency in rabbits did not raise the incidence of drug related conjunctival hyperemia (most common adverse event associated with bimatoprost use in humans), suggesting comparable ocular tolerability of the once and twice-daily regimens for each formulation. CONCLUSION: Bimatoprost 0.01% administered once or twice daily as monotherapy and in fixed-combination with brimonidine 0.1% in rabbits show similar pharmacokinetic profiles of bimatoprost acid, especially in the iris-ciliary body. Key findings from previous clinical studies suggest that by varying the concentration of benzalkonium chloride (a preservative with corneal penetration-enhancing properties), formulations of bimatoprost 0.01% can be administered once or twice daily. These findings support development of bimatoprost 0.01%-based fixed-dose combination therapies administered twice daily for patients who require multiple adjunctive medications to control their IOP. PMID- 29026288 TI - Assessment of quality of life, satisfaction with anticoagulation therapy, and adherence to treatment in patients receiving long-course vitamin K antagonists or direct oral anticoagulants for venous thromboembolism. AB - INTRODUCTION: Direct oral anticoagulants (DOACs) have shown non-inferiority and ease of use compared to vitamin K antagonists (VKA) in the treatment of venous thromboembolism (VTE). No study so far has been directed toward real-life experience of outpatients receiving anticoagulants for VTE in France. METHODS: This is an observational descriptive real-life epidemiological study, using three validated questionnaires (Morisky Medication Adherence Scale-8, EQ-5D, and part 2 of the Perception of Anticoagulant Treatment Questionnaire), to assess adherence, quality of life, and satisfaction in 100 VTE outpatients receiving anticoagulation therapy by VKA (primary or switched from DOAC to VKA) or by DOAC (primary or switched from VKA to DOAC). RESULTS: Patients were very much satisfied with their treatment in both DOAC and VKA groups. Despite advantages of DOACs, therapeutic adherence was only moderate. The best adherence scores were observed in the primary VKA switched to DOAC for at least 3 months (S-DOAC) subgroup. Quality of life was better in the DOAC group mainly because of the absence of the requirement for blood testing. Most of the complaints concerned the pain/discomfort dimension in the VKA group and anxiety/depression dimension in the DOAC group. CONCLUSION: Patients were satisfied with their anticoagulant treatment, especially when they were involved in choosing the anticoagulant, and the treatment suited them. Quality of life of patients in the DOAC group was better than in the VKA group, but adherence remains to be improved. This study highlights the importance of the physician-patient relationship, pretreatment initiation, and follow-up of any anticoagulation therapy throughout. PMID- 29026289 TI - Can we predict postoperative complications in elderly Chinese patients with hip fractures using the surgical risk calculator? AB - PURPOSE: Hip fractures are associated with poor prognosis in elderly patients partly due to the high rate of postoperative complications. This study was aimed to investigate whether the surgical risk calculator is suitable for predicting postoperative complications in elderly Chinese patients with hip fractures. METHODS: The incidence of postoperative complications among 410 elderly patients with hip fractures was predicted by the surgical risk calculator and then compared with the actual value. The risk calculator model was evaluated using the following three metrics: Hosmer-Lemeshow test for the goodness-of-fit of the model, receiver operating characteristic curve (ROC) (also referred as C statistic) for the predictive specificity and sensitivity, and the Brier's score test for predictive accuracy. RESULTS: Preoperative risk factors including gender, age, preoperative functional status, American Society of Anesthesiologists grade, hypertension, dyspnea, dialysis, previous cardio vascular history, and cerebrovascular disease were positively correlated with the incidence of postoperative complications in elderly patients with hip fractures. The predicted complication incidence rate was well matched with the actual complication rate by Hosmer-Lemeshow test. The model had high sensitivity and specificity for predicting the mortality rate of these patients with a C statistic index of 0.931 (95% CI [0.883, 0.980]). The surgical calculator model had an accuracy of 90% for predicting the reoperation rate (Brier's score <0.01). CONCLUSIONS: The surgical risk calculator could be useful for predicting mortality and reoperation in elderly patients with hip fracture. Patients and surgeons may use this simple calculator to better manage the preoperative risks. PMID- 29026290 TI - Mindfulness training for psychological stress in family caregivers of persons with dementia: a systematic review and meta-analysis of randomized controlled trials. AB - Caring for a relative with dementia is extremely challenging; conventional interventions may not be highly effective or easily available on some occasions. This study aimed to explore the efficacy of mindfulness training in improving stress-related outcomes in family caregivers of people with dementia using a meta analytic review. We searched randomized controlled trials (RCT) through April 2017 from five electronic databases, and assessed the risk of bias using the Cochrane Collaboration tool. Seven RCTs were included in our review. Mindfulness interventions showed significant effects of improvement in depression (standardized mean difference: -0.58, [95% CI: -0.79 to -0.37]), perceived stress (-0.33, [-0.57 to -0.10]), and mental health-related quality of life (0.38 [0.14 to 0.63]) at 8 weeks post-treatment. Pooled evidence did not show a significant advantage of mindfulness training compared with control conditions in the alleviation of caregiver burden or anxiety. Future large-scale and rigorously designed trials are needed to confirm our findings. Clinicians may consider the mindfulness program as a promising alternative to conventional interventions. PMID- 29026291 TI - Psychometric properties of the Farsi version of Attitudes to Aging Questionnaire in Iranian older adults. AB - BACKGROUND: Attitudes to the aging process are affected by the individual's sociocultural background. The measurement of this important concept among older people in various societies requires the use of tools that are able to demonstrate both reliability and validity. OBJECTIVE: The objectives of this study were to translate and validate the Attitudes to Aging Questionnaire (AAQ) and investigate its psychometric features among Iranian older people. METHODS: In this methodological study, the Farsi version of the AAQ was validated among 400 Iranian older adults who were members of citizen clubs in an urban area of Iran. Content, face and construct (exploratory factor analysis) validities of the AAQ were assessed. In addition, its reliability was assessed in terms of internal consistency and stability. For discriminant validity, the discriminant power of the AAQ in terms of gender and education levels was evaluated. Criterion validity showed a significant correlation between the most subscales of the AAQ and the Short Form 36 (SF-36) and World Health Organization Quality of Life (WHOQOL) questionnaires. Descriptive and inferential statistics were used for data analysis. RESULTS: The exploratory factor analysis confirmed the construct validity of the AAQ. The result of the test-retest reliability with a 2-week interval was satisfactory and reported as r=0.90 (p<0.001). The Cronbach's alpha coefficient was reported as 0.75 for the whole instrument and 0.85-0.93 for its dimensions. There were associations between the AAQ subscales, SF-36 quality of life (r=0.56, p<0.001) and WHOQOL-BREF (r=0.78, p<0.001), indicating an appropriate convergent validity. The ability to discriminate between male and female participants and those with lower and higher education levels was demonstrated, thus lending support to claims for adequate known-group validity. CONCLUSION: The Farsi version of the AAQ showed favorable validity and reliability. Therefore, it can be used for assessing attitudes toward aging among older adults. PMID- 29026292 TI - The effects of holistic health group interventions on improving the cognitive ability of persons with mild cognitive impairment: a randomized controlled trial. AB - PURPOSE: Persons with mild cognitive impairment (PwMCI) are at a higher risk of developing dementia than those without cognitive impairment. This research study aims to evaluate the effectiveness of a holistic health group intervention, which is based on the holistic brain health approach as well as an Eastern approach to health care, on improving the cognitive ability of Chinese PwMCI. RESEARCH METHODS: In a randomized controlled trial (RCT), 38 Chinese PwMCI were randomly assigned to either a 10-session holistic health intervention group or the control group. The holistic health treatment group attempted to promote the acceptance of their illness, enhance memory and coping skills, develop a positive lifestyle, maintain positive emotions, and facilitate emotional support among participants. The 10-session holistic health group intervention was structured, with each session conducted once per week and ~90 minutes in length. Control group patients and their family caregivers received standardized basic educational materials that provided basic information on cognitive decline for them to read at home. The Montreal Cognitive Assessment (MoCA) test was used to assess the cognitive ability of PwMCI in the pre- and posttreatment periods by a research assistant who was blind to the group assignment of the participants. RESULTS: The paired samples t-test indicated that the treatment group (n=18) showed significant improvement in the MoCA score, whereas the control group (n=20) did not. Moreover, 2*2 (group * time) repeated-measures analysis of covariance (ANCOVA) demonstrated that the holistic health group treatment was significantly more effective than the control intervention in improving the MoCA score, with a moderate effect size, and improving the delayed recall (ie, short-term memory), with a strong effect size, after controlling for age, sex, education, and marital status. CONCLUSION: This present RCT provides evidence to support the feasibility and effectiveness of the holistic health group intervention in improving the cognitive and short-term memory abilities of PwMCI. PMID- 29026294 TI - Comparison of the peripheral blood eosinophil count using near-patient testing and standard automated laboratory measurement in healthy, asthmatic and COPD subjects. AB - Near-patient testing (NPT) allows clinical decisions to be made in a rapid and convenient manner and is often cost effective. In COPD the peripheral blood eosinophil count has been demonstrated to have utility in providing prognostic information and predicting response to treatment during an acute exacerbation. For this potential to be achieved having a reliable NPT of blood eosinophil count would be extremely useful. Therefore, we investigated the use of the HemoCue(r) WBC Diff System and evaluated its sensitivity and specificity in healthy, asthmatic and COPD subjects. This method requires a simple skin prick of blood and was compared to standard venepuncture laboratory analysis. The HemoCue(r) WBC Diff System measured the peripheral blood eosinophil count in healthy, asthma and COPD subjects with very close correlation to the eosinophil count as measured by standard venepuncture. The correlations were unaffected by disease status. This method for the measurement of the peripheral blood eosinophil count has the potential to provide rapid near-patient results and thus influence the speed of management decisions in the treatment of airway diseases. PMID- 29026293 TI - Assessing capacity to consent for research in cognitively impaired older patients. AB - BACKGROUND: The number of clinical trials including older patients, and particularly patients with cognitive impairment, is increasing. While statutory provisions exist to make sure that the capacity to consent is assessed systematically for each patient, many gray areas remain with regard to how this assessment is made or should be made in the routine practice of clinical research. OBJECTIVES: The aim of this review was to draw up an inventory of assessment tools evaluating older patients' capacity to consent specifically applicable to clinical research, which could be used in routine practice. METHODS: Two authors independently searched PubMed, Cochrane, and Google Scholar data-bases between November 2015 and January 2016. The search was actualized in April 2017. We used keywords (MeSH terms and text words) referring to informed consent, capacity to consent, consent for research, research ethics, cognitive impairment, vulnerable older patients, and assessment tools. Existing reviews were also considered. RESULTS: Among the numerous existing tools for assessing capacity to consent, 14 seemed potentially suited for clinical research and six were evaluated in older patients. The MacArthur Competence Assessment Tool for Clinical Research (MacCAT-CR) was the most frequently cited. CONCLUSION: The MacCAT-CR is currently the most used and the best validated questionnaire. However, it appears difficult to use and time-consuming. A more recent tool, the University of California Brief Assessment of Capacity to Consent (UBACC), seems interesting for routine practice because of its simplicity, relevance, and applicability in older patients. PMID- 29026295 TI - Systemic effects of chronic obstructive pulmonary disease in young-old adults' life-space mobility. AB - PURPOSE: The objective was to assess whether dyspnea, peripheral muscle strength and the level of physical activity are correlated with life-space mobility of older adults with COPD. PATIENTS AND METHODS: Sixty patients over 60 years of age (40 in the COPD group and 20 in the control group) were included. All patients were evaluated for lung function (spirometry), life-space mobility (University of Alabama at Birmingham Study of Aging Life-Space Assessment), dyspnea severity (Modified Dyspnea Index), peripheral muscle strength (handgrip dynamometer), level of physical activity and number of daily steps (accelerometry). Groups were compared using unpaired t-test. Pearson's correlation was used to test the association between variables. RESULTS: Life-space mobility (60.41+/-16.93 vs 71.07+/-16.28 points), dyspnea (8 [7-9] vs 11 [10-11] points), peripheral muscle strength (75.16+/-14.89 vs 75.50+/-15.13 mmHg), number of daily steps (4,865.4+/ 2,193.3 vs 6,146.8+/-2,376.4 steps), and time spent in moderate to vigorous activity (197.27+/-146.47 vs 280.05+/-168.95 minutes) were lower among COPD group compared to control group (p<0.05). The difference was associated with the lower mobility of COPD group in the neighborhood. CONCLUSION: Life-space mobility is decreased in young-old adults with COPD, especially at the neighborhood level. This impairment is associated to higher dyspnea, peripheral muscle weakness and the reduced level of physical activity. PMID- 29026296 TI - Trends in health care resource utilization and pharmacological management of COPD in Taiwan from 2004 to 2010. AB - RATIONALE: COPD has attracted widespread attention worldwide. The prevalence of COPD in Taiwan has been reported, but little is known about trends in health care resource utilization and pharmacologic management in COPD treatment. OBJECTIVE: The objective of this article was to study trends in health care resource utilization, pharmacologic management, and medical costs of COPD treatment in Taiwan. MATERIALS AND METHODS: Reimbursement claims in the Taiwan National Health Insurance System from 2004 to 2010 were collected. The disease burden of COPD, including health care resource utilization and medical costs, was evaluated. RESULTS: The pharmacy cost of COPD increased from 2004 to 2010 due to the increased utilization of long-acting muscarinic antagonist (LAMA) and fixed-dose combination of long-acting beta2-agonist and inhaled corticosteroid (LABA/ICS), whereas the cost of all other COPD-related medications decreased. The average outpatient department (OPD) cost per patient increased 29.3% from 1,070 USD in 2004 to 1,383 USD in 2010. The highest average total medical cost per patient was 3,434 USD in 2005, and it decreased 12.4% to 3,008 USD in 2010. There was no significant difference in the average number of OPD visits and emergency department visits per patient. The highest average number of hospital admissions was 0.81 in 2005, and it decreased to 0.65 in 2010. The average number of intensive care unit (ICU) admissions decreased from 0.52 in 2005 to 0.31 in 2010. CONCLUSION: From 2004 to 2010, the average total medical cost per patient of COPD was slightly decreased because of the decreased average number of hospital admissions and ICU admissions. The costs of both LAMA and LABA/ICS increased, while the cost for all other COPD-related medications decreased. These findings suggest that the increased utilization of LAMA and LABA/ICS may have contributed to the decreased average number of hospital admissions and ICU admissions in COPD patients from 2004 to 2010. PMID- 29026297 TI - In vitro study on anti-inflammatory effects of epigallocatechin-3-gallate-loaded nano- and microscale particles. AB - PURPOSE: This study aimed to develop an anti-inflammation system consisting of epigallo-catechin-3-gallate (EGCG) encapsulated in poly(lactide-co-glycolic acid) (PLGA) particles to promote wound healing. METHODS: Nano- and microscale PLGA particles were fabricated using a water/oil/water emulsion solvent evaporation method. The optimal particle size was determined based on drug delivery efficiency and biocompatibility. The particles were loaded with EGCG. The anti inflammatory effects of the particles were evaluated in an in vitro cell-based inflammation model. RESULTS: Nano- and microscale PLGA particles were produced. The microscale particles showed better biocompatibility than the nanoscale particles. In addition, the microscale particles released ~60% of the loaded drug, while the nanoscale particles released ~50%, within 48 hours. Thus, microscale particles were selected as the carriers. The optimal EGCG working concentration was determined based on the effects on cell viability and inflammation. A high EGCG dose (100 MUM) resulted in poor cell viability; therefore, a lower dose (<=50 MUM) was used. Moreover, 50 MUM EGCG had a greater anti-inflammatory effect than 10 MUM concentration on lipopolysaccharide-induced inflammation. Therefore, 50 MUM EGCG was selected as the working dose. EGCG loaded microparticles inhibited inflammation in human dermal fibroblasts. Interestingly, the inhibitory effects persisted after replacement of the drug loaded particle suspension solution with fresh medium. CONCLUSION: The EGCG loaded microscale particles are biocompatible and exert a sustained anti inflammatory effect. PMID- 29026298 TI - Therapeutic effects of lornoxicam-loaded nanomicellar formula in experimental models of rheumatoid arthritis. AB - BACKGROUND: Rheumatoid arthritis (RA) is a chronic inflammatory disease treated by nonsteroidal anti-inflammatory drugs (NSAIDs) including lornoxicam (LX). Nanocarriers have been used to increase the efficacy and reduce the side effects of various drugs. The objective of the present study was to compare the therapeutic efficacy of systemic administration of lornoxicam-loaded nanomicellar formula (LX-NM) with that of free LX. MATERIALS AND METHODS: The LX-loaded mixed polymeric nanomicellar formula was prepared by direct equilibrium technique. Two rat models were used in the study: carrageenan-induced acute edema and Freund's complete adjuvant (FCA)-induced chronic arthritis. RESULTS: The inhibitory effect of LX-NM on carrageenan-induced edema was higher than free LX for the same dose (1.3 mg/kg, i.p.). LX-NM (0.325 mg/kg, i.p.) produced effects comparable to that of diclofenac, which served as a standard. In the FCA model, daily treatment with LX-NM (0.325 mg/kg, i.p.) starting on day 14 significantly reduced the percentage of edema and increased weight growth. However, the same dose of LX failed to confer any significant change. Additionally, LX-NM significantly attenuated the rise of tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta, prostaglandin E2, nuclear factor-kappabeta, malondialdehyde and nitric oxide serum levels. In contrast, LX failed to show any significant reduction in elevated serum biomarkers except for TNF-alpha. CONCLUSION: LX-NM is an alternative delivery system that is simply prepared at low costs. It showed a superior therapeutic efficacy against RA compared to free LX. Thus, LX-NM can be considered as a promising candidate for treatment of RA and similar inflammatory disorders. PMID- 29026299 TI - Glycogen-gold nanohybrid escalates the potency of silymarin. AB - In this study, a glycogen-gold nanohybrid was fabricated to enhance the potency of a promising hepatoprotective agent silymarin (Sly) by improving its solubility and gut permeation. By utilizing a facile green chemistry approach, biogenic gold nanoparticles were synthesized from Annona reticulata leaf phytoconstituents in combination with Sly (SGNPs). Further, the SGNPs were aggregated in glycogen biopolymer to yield the therapeutic nanohybrids (GSGNPs). Transmission electron microscopy, UV-Vis spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy analysis confirmed the successful formation and conjugation of both SGNPs and GSGNPs. The fabricated nanohybrids showed significant protection against CCl4-induced hepatic injury in Wistar rats and maintained natural antioxidant (superoxide dismutase and catalase) levels. Animals treated with GSGNPs (10 mg/kg) and SGNPs (20 mg/kg) retained usual hepatic functions with routine levels of hepatobiliary enzymes (aspartate transferase, alanine transaminase, alkaline phosphatase, and lactate dehydrogenase) and inflammatory markers (interleukin-1beta and tumor necrosis factor-alpha) with minimal lipid peroxidation, whereas those treated with 100 mg/kg of Sly showed the similar effect. These results were also supported by histopathology of the livers where pronounced hepatoprotection with normal hepatic physiology and negligible inflammatory infiltrate were observed. Significant higher plasma Cmax supported the enhanced bioavailability of Sly upon GSGNPs treatment compared to SGNPs and free Sly. Graphite furnace atomic absorption spectrophotometry analysis also substantiated the efficient delivery of GSGNPs over SGNPs. The fabricated therapeutic nanohybrids were also found to be biocompatible toward human erythrocytes and L929 mouse fibroblast cells. Overall, due to increased solubility, bioavailability and profuse gut absorption; GSGNPs demonstrated tenfold enhanced potency compared to free Sly. PMID- 29026300 TI - Noncovalent interaction-assisted drug delivery system with highly efficient uptake and release of paclitaxel for anticancer therapy. AB - An effective drug delivery system requires efficient drug uptake and release inside cancer cells. Here, we report a novel drug delivery system, in which paclitaxel (PTX) interacts with a novel cell penetrating peptide (CPP) through noncovalent interaction designed based on molecular simulations. This CPP/PTX complex confers high efficiency in delivering PTX into cancer cells not by endocytosis but by an energy-independent pathway. Once inside cells, the noncovalent interaction between PTX and the CPP may allow fast release of PTX within cells due to the direct translocation of CPP/PTX. This drug delivery system exhibits strong capacity for inhibition of tumor growth and offers a new avenue for the development of advanced drug delivery systems for anticancer therapy. PMID- 29026301 TI - Rational design of novel, fluorescent, tagged glutamic acid dendrimers with different terminal groups and in silico analysis of their properties. AB - Dendrimers are hyperbranched polymers with a multifunctional architecture that can be tailored for the use in various biomedical applications. Peptide dendrimers are particularly relevant for drug delivery applications due to their versatility and safety profile. The overall lack of knowledge of their three dimensional structure, conformational behavior and structure-activity relationship has slowed down their development. Fluorophores are often conjugated to dendrimers to study their interaction with biomolecules and provide information about their mechanism of action at the molecular level. However, these probes can change dendrimer surface properties and have a direct impact on their interactions with biomolecules and with lipid membranes. In this study, we have used computer-aided molecular design and molecular dynamics simulations to identify optimal topology of a poly(l-glutamic acid) (PG) backbone dendrimer that allows incorporation of fluorophores in the core with minimal availability for undesired interactions. Extensive all-atom molecular dynamic simulations with the CHARMM force field were carried out for different generations of PG dendrimers with the core modified with a fluorophore (nitrobenzoxadiazole and Oregon Green 488) and various surface groups (glutamic acid, lysine and tryptophan). Analysis of structural and topological features of all designed dendrimers provided information about their size, shape, internal distribution and dynamic behavior. We have found that four generations of a PG dendrimer are needed to ensure minimal exposure of a core-conjugated fluorophore to external environment and absence of undesired interactions regardless of the surface terminal groups. Our findings suggest that NBD-PG-G4 can provide a suitable scaffold to be used for biophysical studies of surface-modified dendrimers to provide a deeper understanding of their intermolecular interactions, mechanisms of action and trafficking in a biological system. PMID- 29026302 TI - Ultrasmall AGuIX theranostic nanoparticles for vascular-targeted interstitial photodynamic therapy of glioblastoma. AB - Despite combined treatments, glioblastoma outcome remains poor with frequent local recurrences, indicating that a more efficient and local therapy is needed. In this way, vascular-targeted photodynamic therapy (VTP) could help tumor eradication by destroying its neovessels. In this study, we designed a polysiloxane-based nanoparticle (NP) combining a magnetic resonance imaging (MRI) contrast agent, a photosensitizer (PS) and a new ligand peptide motif (KDKPPR) targeting neuropilin-1 (NRP-1), a receptor overexpressed by angiogenic endothelial cells of the tumor vasculature. This structure achieves the detection of the tumor tissue and its proliferating part by MRI analysis, followed by its treatment by VTP. The photophysical properties of the PS and the peptide affinity for NRP-1 recombinant protein were preserved after the functionalization of NPs. Cellular uptake of NPs by human umbilical vein endothelial cells (HUVEC) was increased twice compared to NPs without the KDKPPR peptide moiety or conjugated with a scramble peptide. NPs induced no cytotoxicity without light exposure but conferred a photocytotoxic effect to cells after photodynamic therapy (PDT). The in vivo selectivity, evaluated using a skinfold chamber model in mice, confirms that the functionalized NPs with KDKPPR peptide moiety were localized in the tumor vessel wall. PMID- 29026303 TI - Delivery of antagomiR204-conjugated gold nanoparticles from PLGA sheets and its implication in promoting osseointegration of titanium implant in type 2 diabetes mellitus. AB - Impaired osseointegration of the implant remains the big hurdle for dental implant therapy in diabetic patients. In this study, the authors first identified that miR204 was strikingly highly expressed in the bone mesenchymal stem cells (BMSCs) of diabetic rats. Forced expression of miR204 repressed the osteogenic potential of BMSCs, while inhibition of miR204 significantly increased the osteogenic capacity. Moreover, the miR204 inhibitor was conjugated with gold nanoparticles (AuNP-antagomiR204) and dispersed them in the poly(lactic-co glycolic acid) (PLGA) solution. The AuNP-antagomiR204 containing PLGA solution was applied for coating the surface of titanium implant. Electron microscope revealed that an ultrathin sheet was formed on the surface of the implant, and the AuNPs were evenly dispersed in the coated PLGA sheet. Cellular experiments revealed that these encapsulated AuNP-antagomiR204 were able to be released from the PLGA sheet and uptaken by adherent BMSCs. In vivo animal study further confirmed that the AuNP-antagomiR204 released from PLGA sheet promoted osseointegration, as revealed by microcomputerized tomography (microCT) reconstruction and histological assay. Taken together, this study established that miR204 misexpression accounted for the deficient osseointegation in diabetes mellitus, while PLGA sheets aided the release of AuNP-antagomiR204, which would be a promising strategy for titanium implant surface functionalization toward better osseointegration. PMID- 29026304 TI - Prevention of doxorubicin-induced cardiomyopathy using targeted MaFGF mediated by nanoparticles combined with ultrasound-targeted MB destruction. AB - The present study seeks to observe the preventive effects of doxorubicin-induced cardiomyopathy (DOX-CM) in rats using targeted non-mitogenic acidic fibroblast growth factor (MaFGF) mediated by nanoparticles (NP) combined with ultrasound targeted MB destruction (UTMD). DOX-CM rats were induced by intraperitoneally injected doxorubicin. Six weeks after intervention, the indices from the transthoracic echocardiography and velocity vector imaging showed that the left ventricular function in the MaFGF-loaded NP (MaFGF-NP) + UTMD group was significantly improved compared with the DOX-CM group. The increased malondialdehyde and decreased superoxide dismutase were observed in the DOX-CM group, while a significant increase in superoxide dismutase and a decrease in malondialdehyde were detected in the groups treated with MaFGF-NP + UTMD. From the Masson staining, the MaFGF-NP + UTMD group showed a significant difference from the DOX-CM group. The cardiac collagen volume fraction and the ratio of the perivascular collagen area to the luminal area number of terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labelling positive cells in the MaFGF-NP + UTMD group decreased to 8.9%, 0.55 fold, compared with the DOX-CM group (26.5%, 1.7-fold). From terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labelling staining, the results showed the strongest inhibition of apoptosis progress in MaFGF-NP + UTMD group. The immunohistochemical staining of the TGF beta1 in MaFGF-NP + UTMD group reached 3.6%, which was much lower than that of the DOX-CM group (12.6%). These results confirmed that the abnormalities, including left ventricular dysfunction, myocardial fibrosis, cardiomyocytes apoptosis and oxidative stress, could be suppressed by twice weekly MaFGF treatments for 6 consecutive weeks (free MaFGF or MaFGF-NP+/UTMD), with the strongest improvements observed in the MaFGF-NP + UTMD group. Western blot analyses of the heart tissue further revealed the highest pAkt levels, highest anti-apoptosis protein (Bcl-2) levels and strongest reduction in proapoptosis protein (Bax) levels in the MaFGF-NP + UTMD group. This study confirmed the preventive effects of DOX-CM in the rats with MaFGF-NP and UTMD by retarding myocardial fibrosis, inhibiting oxidative stress, and decreasing cardiomyocyte apoptosis. PMID- 29026305 TI - Protective effects on myocardial infarction model: delivery of schisandrin B using matrix metalloproteinase-sensitive peptide-modified, PEGylated lipid nanoparticles. AB - PURPOSE: Schisandrin B (Sch B) is clinically applied for the treatment of hepatitis and ischemic disease. However, its clinical efficacy is limited due to the poor solubility and low bioavailability. This study aimed to develop matrix metalloproteinase (MMP)-sensitive peptide-modified, polyethylene glycol (PEG) modified (PEGylated) solid lipid nanoparticles (SLNs) for loading Sch B (MMP-Sch B SLNs), and to evaluate the therapeutic effect in the myocardial infarction model. METHODS: PEG lipid and MMP-targeting peptide conjugate were synthesized. MMP-Sch B SLNs were prepared by solvent displacement technique. The physicochemical properties and pharmacokinetics of SLNs were investigated. In vivo effects on infarct size was evaluated in rats. RESULTS: The successful synthesis of lipid-peptide conjugate was confirmed. MMP-Sch B SLNs had a particle size of 130 nm, a zeta potential of 18.3 mV, and a sustained-release behavior. Higher heart drug concentration and longer blood circulation times were achieved by Sch B loaded SLNs than the drug solution according to the pharmacokinetic and biodistribution results. The best therapeutic efficacy was exhibited by MMP-Sch B SLNs by reducing the infarction size to the greatest extent. CONCLUSION: The modified SLNs may be a good choice for delivery of Sch B for the treatment of myocardial infarction. PMID- 29026306 TI - Enhanced antifungal activity of voriconazole-loaded nanostructured lipid carriers against Candida albicans with a dimorphic switching model. AB - Candida commonly adheres to implanted medical devices and forms biofilms. Due to the minimal activity of current antifungals against biofilms, new drugs or drug delivery systems to treat these persistent infections are urgently needed. In the present investigation, voriconazole-loaded nanostructured lipid carriers (Vrc NLCs) were formulated for enhanced drug-delivery efficiency to C. albicans to increase the antifungal activity of Vrc and to improve the treatment of infectious Candida diseases. Vrc-NLCs were prepared by a hot-melt, high-pressure homogenization method, and size distribution, zeta-potential, morphology, drug encapsulation efficiency, drug loading, and physical stability were characterized. The antifungal activity of Vrc-NLCs in vitro was tested during planktonic and biofilm growth in C. albicans. The mean particle size of the Vrc NLCs was 45.62+/-0.53 nm, and they exhibited spheroid-like morphology, smooth surfaces, and zeta-potential of -0.69+/-0.03 mV. Encapsulation efficiency and drug loading of Vrc-NLCs were 75.37%+/-2.65% and 3.77%+/-0.13%, respectively. Physical stability results revealed that despite the low measured zeta-potential, the dispersion of the Vrc-NLCs was stable during their 3-week storage at 4 degrees C. The minimum inhibitory concentration of Vrc-NLCs was identical to that of Vrc. However, the inhibition rate of Vrc-NLCs at lower concentrations was significantly higher than that of Vrc during planktonic growth in C. albicans in yeast-extract peptone dextrose medium. Surprisingly, Vrc-NLCs treatment reduced cell density in biofilm growth in C. albicans and induced more switches form hyphal cells to yeast cells compared with Vrc treatment. In conclusion, Vrc-NLCs maintain antifungal activity of Vrc and increase antifungal drug-delivery efficiency to C. albicans. Therefore, Vrc-NLCs will greatly contribute to the treatment of infectious diseases caused by C. albicans. PMID- 29026307 TI - Porous Se@SiO2 nanospheres treated paraquat-induced acute lung injury by resisting oxidative stress. AB - Acute paraquat (PQ) poisoning is one of the most common forms of pesticide poisoning. Oxidative stress and inflammation are thought to be important mechanisms in PQ-induced acute lung injury (ALI). Selenium (Se) can scavenge intracellular free radicals directly or indirectly. In this study, we investigated whether porous Se@SiO2 nanospheres could alleviate oxidative stress and inflammation in PQ-induced ALI. Male Sprague Dawley rats and RLE-6TN cells were used in this study. Rats were categorized into 3 groups: control (n=6), PQ (n=18), and PQ + Se@SiO2 (n=18). The PQ and PQ + Se@SiO2 groups were randomly and evenly divided into 3 sub-groups according to different time points (24, 48 and 72 h) after PQ treatment. Porous Se@SiO2 nanospheres 1 mg/kg (in the PQ + Se@SiO2 group) were administered via intraperitoneal injection every 24 h. Expression levels of reduced glutathione, malondialdehyde, superoxide dismutase, reactive oxygen species (ROS), nuclear factor-kappaB (NF-kappaB), phosphorylated NF-kappaB (p-NF-kappaB), tumor necrosis factor-alpha and interleukin-1beta were detected, and a histological analysis of rat lung tissues was performed. The results showed that the levels of ROS, malondialdehyde, NF-kappaB, p-NF-kappaB, tumor necrosis factor-alpha and interleukin-1beta were markedly increased after PQ treatment. Glutathione and superoxide dismutase levels were reduced. However, treatment with porous Se@SiO2 nanospheres markedly alleviated PQ-induced oxidative stress and inflammation. Additionally, the results from histological examinations and wet-to dry weight ratios of rat lung tissues showed that lung damage was reduced after porous Se@SiO2 nanosphere treatment. These data indicate that porous Se@SiO2 nanospheres may reduce NF-kappaB, p-NF-kappaB and inflammatory cytokine levels by inhibiting ROS in PQ-induced ALI. This study demonstrates that porous Se@SiO2 nanospheres may be a therapeutic method for use in the future for PQ poisoning. PMID- 29026309 TI - Predicting treatment outcomes of major depressive disorder by early improvement in painful physical symptoms: a pooled analysis of double-blind, placebo controlled trials of duloxetine. AB - OBJECTIVE: We determined if early improvement in painful physical symptoms (PPS) can be a predictor of remission in the treatment of major depressive disorder (MDD). METHODS: We included randomized, double-blind, parallel-group clinical trials of duloxetine (40-60 mg/day) versus placebo for the acute treatment of MDD with associated PPS. Only those studies using the Montgomery-Asberg Depression Rating Scale (MADRS) and the Brief Pain Inventory - Short Form (BPI-SF) were included. Three studies met all criteria and included male or female outpatients aged >=18 years who met the diagnostic criteria for MDD, had a MADRS total score >=20, and had at least moderate pain (BPI-SF average pain score >=3). Positive predictive values (PPVs) and negative predictive values (NPVs) of early improvement in PPS for remission were analyzed. PPVs were the proportion of patients with remission (MADRS total score <=10) at week 8 out of patients who experienced early improvement in BPI-SF average pain score (>=30% decrease from baseline at week 1, 2, or 4). NPVs were the proportion of patients without remission (MADRS total score >10) at week 8 out of patients who did not experience early improvement in PPS. RESULTS: Data from 1,320 patients were analyzed (duloxetine N=641 and placebo N=679). The overall remission (MADRS total score <=10 at week 8) rate for the duloxetine group was significantly higher than the placebo group (38.5% vs 21.8%; P<0.0001). For both treatment groups, PPVs of early improvement in BPI-SF (30% improvement from baseline) were higher than the overall remission rate for all weeks examined (weeks 1, 2, and 4); in general, NPVs of early improvement in BPI-SF for nonremission were higher than the overall nonremission rate. CONCLUSION: Early improvement in PPS can be a useful clinical indicator of subsequent treatment outcome for MDD patients with associated PPS. PMID- 29026308 TI - Role of poly(epsilon-caprolactone) lipid-core nanocapsules on melanoma-neutrophil crosstalk. AB - Metastatic melanoma is an aggressive cancer with increasing incidence and limited therapies in advanced stages. Systemic neutrophilia or abundant neutrophils in the tumor contribute toward its worst prognosis, and the interplay of cancer and the immune system has been shown in tumor development and metastasis. We recently showed the in vivo efficacy of poly(epsilon-caprolactone) lipid-core nanocapsule (LNC) or LNC loaded with acetyleugenol (AcE-LNC) to treat B16F10-induced melanoma in mice. In this study, we investigated whether LNC or AcE-LNC toxicity could involve modifications on crosstalk of melanoma cells and neutrophils. Therefore, melanoma cells (B16F10) were pretreated with vehicle, LNC, AcE or AcE-LNC for 24 h, washed and, further, cocultured for 18 h with peritoneal neutrophils obtained from C57Bl/6 mice. Melanoma cells were able to internalize the LNC or AcE-LNC after 2 h of incubation. LNC or AcE-LNC pretreatments did not cause melanoma cells death, but led melanoma cells to be more susceptible to death in serum deprivation or hypoxia or in the presence of neutrophils. Interestingly, the production of reactive oxygen species (ROS), which causes cell death, was increased by neutrophils in the presence of LNC- and AcE-LNC-pretreated melanoma cells. LNC or AcE-LNC treatments reduced the concentration of transforming growth factor-beta (TGF-beta) in the supernatant of melanoma cells, a known factor secreted by cancer cells to induce pro-tumoral actions of neutrophils in the tumor microenvironment. In addition, we found reduced levels of pro-tumoral chemical mediators VEGF, arginase-1, interleukin-10 (IL-10) and matrix metalloproteinase-9 (MMP-9) in the supernatant of LNC or AcE-LNC-pretreated melanoma cells and cocultured with neutrophils. Overall, our data show that the uptake of LNC or AcE-LNC by melanoma cells affects intracellular mechanisms leading to more susceptibility to death and also signals higher neutrophil antitumoral activity. PMID- 29026310 TI - Laser interstitial thermal therapy for the treatment of epilepsy: evidence to date. AB - Medically intractable epilepsy is associated with increased morbidity and mortality. For those with focal epilepsy and correlated electrophysiological or radiographic features, open surgical resection can achieve high rates of seizure control, but can be associated with neurologic deficits and cognitive effects. Recent innovations have allowed for more minimally invasive methods of surgical seizure control such as magnetic resonance-guided laser interstitial therapy (MRgLITT). MRgLITT achieves the goal of ablating seizure foci while preserving neuropsycho-logical function and offering real-time feedback and monitoring of tissue ablation. This review summarizes the utilization of MRgLITT for mesial temporal lobe epilepsy and other seizure disorders. Overall, the efficacy of MRgLITT is comparable to that of open surgery and offers a less invasive approach in patients with significantly less morbidity. PMID- 29026311 TI - Artesunate prevents rats from the clozapine-induced hepatic steatosis and elevation in plasma triglycerides. AB - Clozapine is an atypical antipsychotic with therapeutic efficacy in treatment resistant schizophrenia patients and low incidence of extrapyramidal side effects. However, the use of clozapine has been limited by its adverse effects on metabolism. Artesunate is a semisynthetic derivative of artemisinin and was shown to decrease the plasma cholesterol and triglyceride in rabbits and rats in recent studies. The aim of this study was to examine possible effects of artesunate on the clozapine-induced metabolic alterations in rats given saline, clozapine, artesunate, or clozapine plus artesunate for 6 weeks. The clozapine group showed significantly high plasma levels of triglyceride, hepatic steatosis, and fibrosis along with high levels of C-reactive protein, alanine aminotransferase, and aspartate aminotransferase compared to the saline group. But the treatment had no effect on weight gain and caused no hyperglycemia, hyperinsulinemia, and behavioral changes in the rats. More significantly, these clozapine-induced changes were not seen in rats coadministered with clozapine plus artesunate. These results added evidence supporting psychiatrists to try add-on treatment of artesunate in schizophrenia patients to ameliorate clozapine-induced adverse metabolic effects. PMID- 29026312 TI - Robot-assisted versus conventional laparoscopic operation in anus-preserving rectal cancer: a meta-analysis. AB - OBJECTIVE: The aim of this meta-analysis is to provide recommendations for clinical practice and prevention of postoperative complications, such as circumferential resection margin (CRM) involvement, and compare the amount of intraoperative bleeding, safety, operative time, recovery, outcomes, and clinical significance of robot-assisted and conventional laparoscopic procedures in anus preserving rectal cancer. METHODS: A literature search (PubMed) was performed to identify biomedical research papers and abstracts of studies comparing robot assisted and conventional laparoscopic procedures. We attempted to obtain the full-text link for papers published between 2000 and 2016, and hand-searched references for relevant literature. RevMan 5.3 software was used for the meta analysis. RESULTS: Nine papers (949 patients) were eligible for inclusion; there were 473 patients (49.8%) in the robotic group and 476 patients (50.2%) in the laparoscopic group. According to the data provided in the literature, seven indicators were used to complete the evaluation. The results of the meta-analysis suggested that robot-assisted procedure was associated with lower intraoperative blood loss (mean difference [MD] -41.15; 95% confidence interval [CI] -77.51, 4.79; P=0.03), lower open conversion rate (risk difference [RD] -0.05; 95% CI 0.09, -0.01; P=0.02), lower hospital stay (MD -1.07; 95% CI -1.80, -0.33; P=0.005), lower overall complication rate (odds ratio 0.58; 95% CI 0.41, 0.83; P=0.003), and longer operative time (MD 33.73; 95% CI 8.48, 58.99; P=0.009) compared with conventional laparoscopy. There were no differences in the rate of CRM involvement (RD -0.02; 95% CI -0.05, 0.01; P=0.23) and days to return of bowel function (MD -0.03; 95% CI -0.40, 0.34; P=0.89). CONCLUSION: The Da Vinci robot was superior to laparoscopy with respect to blood loss, open conversion, hospital stay, and postoperative complications during anus-preserving rectal cancer procedures; however, conventional laparoscopy had an advantage regarding operative time. The remaining indicators (CRMs and recovery from intestinal peristalsis) did not differ. PMID- 29026313 TI - Pneumonitis and pneumonitis-related death in cancer patients treated with programmed cell death-1 inhibitors: a systematic review and meta-analysis. AB - PURPOSE: We conducted a meta-analysis of published clinical trials to determine the relationship between the risks of pneumonitis and pneumonitis-related death and programmed cell death-1 (PD-1) inhibitor treatment in patients with cancer. MATERIALS AND METHODS: We examined clinical trials from the Medline and Google Scholar databases. Data from original studies and review articles were also cross referenced and evaluated. Randomized Phase II and Phase III trials of pembrolizumab and nivolumab treatment in patients with cancer were eligible for the analysis. Information about the participants, all-grade and high-grade pneumonitis, and pneumonitis-related death was extracted from each study and analyzed. RESULTS: After the exclusion of ineligible studies, 12 clinical trials were included in the analysis. The odds ratio (OR) for all-grade pneumonitis after PD-1 inhibitor treatment was 4.59 (95% confidence interval [CI]: 2.51-8.37; P<0.00001), and the OR for high-grade pneumonitis after PD-1 inhibitor treatment was 3.83 (95% CI: 1.54-9.48; P=0.004). The OR for pneumonitis-related death after PD-1 inhibitor treatment was 2.47 (95% CI: 0.41-14.81; P=0.32). Moreover, the OR for all-grade pneumonitis after nivolumab/ipilimumab combination therapy versus nivolumab monotherapy was 3.54 (95% CI: 1.52-8.23; P=0.003), and that for high grade pneumonitis after nivolumab/ipilimumab combination therapy versus nivolumab monotherapy was 2.35 (95% CI: 0.45-12.13; P=0.31). Treated cancer appeared to have no effect on the risk of pneumonitis. CONCLUSION: Our data showed that PD-1 inhibitors were associated with increased risks of all-grade and high-grade pneumonitis compared with chemotherapy or placebo controls in patients with cancer. However, we noted no significant difference between patients treated with a PD-1 inhibitor and patients treated with control regimens with respect to the risk of pneumonitis-related death. PMID- 29026314 TI - Facial palsy: what can the multidisciplinary team do? AB - The functional and psychosocial impact of facial paralysis on the patient is significant. In response, a broad spectrum of treatment options exist and are provided by a multitude of health care practitioners. The cause and duration of the facial weakness can vary widely and the optimal care pathway varies. To optimize patient outcome, those involved in the care of patients with facial palsy should collaborate within comprehensive multidisciplinary teams (MDTs). At an international level, those involved in the care of patients with facial paralysis should aim to create standardized guidelines on which outcome domains matter most to patients to aid the identification of high quality care. This review summarizes the causes and treatment options for facial paralysis and discusses the subsequent importance of multidisciplinary care in the management of patients with this condition. Further discussion is given to the extended role of the MDT in determining what constitutes quality in facial palsy care to aid the creation of accepted care pathways and delineate best practice. PMID- 29026315 TI - A model to facilitate collaborative social support for pregnant students in secondary schools. AB - Pregnancy among secondary school students remains a public health problem and is associated with school dropout as well as poor maternal and child health outcomes. Schools in South Africa no longer expel pregnant students as was the case before 2000. Instead, the government encourages them to remain in class to complete their education, but pregnant students often face stigma, and some drop out of school as a result. To remain in class and access antenatal care, pregnant students require social support from teachers, parents and professional nurses. Unfortunately, teachers, parents and professional nurses support pregnant students on an ad hoc basis, and this calls for a model to facilitate collaborative social support. The purpose of this paper is to present and describe a model to facilitate collaborative social support for pregnant students attending secondary schools in South Africa, using the model description steps of Chinn and Kramer. The model is designed as a tool to enable pregnant students to remain in school, attend antenatal care and in the end, deliver healthy babies. The professional nurse, as a member and leader of the school health team which visits secondary schools to provide a package of school health services, is the agent or facilitator of the model. PMID- 29026316 TI - Clinical effects of autologous cytokine-induced killer cell-based immunotherapy in the treatment of endometrial cancer: a case report and literature review. AB - Endometrial cancer is the most prevalent gynecological malignancy in the USA, and its treatment involves surgery, chemotherapy, and radiotherapy. Cytokine-induced killer (CIK) cell-based treatments have shown antitumor activity against several solid tumors. However, to the best of our knowledge, there are no reports yet of CIK immunotherapy in the treatment of endometrial cancer, and consequently, little is known about its efficacy and safety. Here, we report a case of an endometrial cancer patient receiving a combination treatment with CIK cells immunotherapy and chemotherapy. Assessment for clinical features was carried out after every two cycles of CIK immunotherapy and chemotherapy. No severe toxicity was observed after infusion of CIK cells. After 4 cycles of treatment, the patient achieved complete response and showed elevated Karnofsky Performance Status scores with an overall survival time of 13.6 months. The combination therapy improved the quality of life and prolonged patient survival time, which suggested that CIK cell therapy might be a potentially beneficial option for endometrial cancer. PMID- 29026317 TI - High expression of Sam68 in sacral chordomas is associated with worse clinical outcomes. AB - Src-associated in mitosis of 68 kDa (Sam68), also known as KHDRBS1 (KH domain containing, RNA-binding, signal transduction-associated 1), is a member of the signal transduction and activation of RNA family. Previous studies have demonstrated that the aberrant expression of Sam68 is associated with the progression and prognosis of a variety of cancers, but little is known about its expression and role in chordomas, which are rare and aggressive bone neoplasms. In this study, we analyzed 40 tumor tissues and 20 distant normal tissues obtained from 40 patients with sacral chordoma using immunohistochemistry, and observed the expression of Sam68 was significantly upregulated in sacral chordomas compared with normal tissues (P=0.001). A positive correlation between the expression of Sam68 and the cell proliferation index Ki-67 was determined using Spearman's rank correlation test (gamma =0.599, P<0.001). In addition, high expression of Sam68 was significantly associated with surrounding muscle invasion (P<0.001). Moreover, Kaplan-Meier curves showed that patients with overexpressed Sam68 had shorter local recurrence-free survival time (P<0.001). Lastly, multivariate analysis indicated that Sam68 is an independent prognostic factor for the local recurrence-free survival of sacral chordomas (hazard ratio =5.929, 95% CI: 1.092-32.188, P=0.039). Our findings suggest the use of Sam68 as a predictor for the recurrence of sacral chordomas. PMID- 29026318 TI - RNAi-mediated knockdown of CAIX enhances the radiosensitivity of nasopharyngeal carcinoma cell line, CNE-2. AB - Although radiotherapy remains the most powerful as well as the primary treatment modality for nasopharyngeal carcinoma (NPC), approximately 20% of NPC patients still have local recurrence. Carbonic anhydrase IX (CAIX)-related signaling pathways that mediate radioresistance have been found in various kinds of cancer. However, the role of CAIX in NPC radioresistance is still unknown. In this study, we investigated the effect of CAIX silencing on sensitization to ionizing radiation in NPC by using Lipofectamine 2000, which delivers small interfering ribonucleic acid (siRNA) that targets CAIX. Results showed that Lipofectamine 2000 effectively delivered siRNA into the CNE-2 cells, which resulted in the decrease of CAIX expression and cell viability, decrease in cell proliferation and colony formation, and increase in the number of CNE-2 cells stuck in the G2/M phase of the cell cycle upon induction of ionizing radiation. Increased sensitivity of radiotherapy in CNE-2 cells under hypoxic conditions was correlated with the suppression of CAIX. Cells treated with irradiation in addition to CAIX-siRNA1 demonstrated reduced radiobiological parameters (survival fraction at 2 Gy [SF2]) compared with those treated with irradiation only, with a sensitization-enhancing ratio of 1.47. These findings suggest that CAIX can be a promising therapeutic target for the treatment of radioresistant human NPC. PMID- 29026319 TI - Current advances of long non-coding RNA highly upregulated in liver cancer in human tumors. AB - Long non-coding RNAs (lncRNAs) are a group of non-coding RNAs (ncRNAs) >200 nucleotides in length that govern diverse biological processes. Recent evidence suggests that lncRNAs are involved in cancer cell proliferation, apoptosis, invasion, migration, and metastasis. Dysregulation of lncRNAs has been observed in various tumors, and lncRNAs act as oncogenes or tumor suppressors in these malignancies. It has been revealed that lncRNA highly upregulated in liver cancer (HULC) is tightly correlated with a number of cancers such as hepatocellular carcinoma, gastric cancer, colorectal cancer, osteosarcoma, and diffuse large B cell lymphoma. Depletion of HULC suppressed cancer cell proliferation, migration, and invasion and induced apoptosis. Additionally, HULC may function as a diagnostic biomarker and prognostic indicator for some tumors. In this review, we summarize the current knowledge of the role of HULC in cancer progression and the clinical management of human cancers. PMID- 29026320 TI - Quercetin inhibits epithelial-mesenchymal transition, decreases invasiveness and metastasis, and reverses IL-6 induced epithelial-mesenchymal transition, expression of MMP by inhibiting STAT3 signaling in pancreatic cancer cells. AB - Quercetin, a flavone, is multifaceted, having anti-oxidative, anti-inflammatory, and anticancer properties. In the present study, we explored the effects of quercetin on the epithelial-mesenchymal transition (EMT) and invasion of pancreatic cancer cells and the underlying mechanisms. We noted that quercetin exerted pronounced inhibitory effects in PANC-1 and PATU-8988 cells. Moreover, quercetin inhibited EMT and decreased the secretion of matrix metalloproteinase (MMP). Meanwhile, we determined the activity of STAT3 after quercetin treatment. STAT3 phosphorylation decreased following treatment with quercetin. We also used activating agent of STAT3, IL-6, to induce an increase in cell malignancy and to observe the effects of treatment with quercetin. As expected, the EMT and MMP secretion increased with activation of the STAT3 signaling pathway, and quercetin reversed IL-6-induced EMT, invasion, and migration. Therefore, our results demonstrate that quercetin triggers inhibition of EMT, invasion, and metastasis by blocking the STAT3 signaling pathway, and thus, quercetin merits further investigation. PMID- 29026321 TI - Characteristics and mutation analysis of Ph-positive leukemia patients with T315I mutation receiving tyrosine kinase inhibitors. AB - BACKGROUND: TKIs are the first-line treatment for patients with Ph-positive (Ph+) leukemia. However, drug resistance is frequently observed, mainly due to mutations within the breakpoint cluster region-Abelson leukemia virus (BCR-ABL) kinase domain. The T315I substitution confers complete resistance to TKIs. The aim of this study was to analyze the clinical characteristics of 17 patients with T315I mutation after TKI treatment and provide a basis for prognosis. PATIENTS AND METHODS: The clinical data of 17 TKI-resistant Ph+ leukemia patients who were found to have a ABL kinase domain mutation from September 2008 to January 2017 were collected. Karyotypes and BCR-ABL fusion gene were analyzed by R-banding and fluorescence in situ hybridization, respectively. Total RNA was extracted by TRIzol reagent, and the ABL kinase domain mutation was detected by direct sequencing. RESULTS: A total of 17 patients reached effective remission including major molecular response and complete cytogenetic response. However, all the patients subsequently developed a T315I mutation after treatment with TKIs. The rate of the BCR-ABL fusion gene in most of the patients who developed the T315I mutation was significantly higher than that before the mutation. At initial diagnosis, patients average platelet count was 149.7*109/L, whereas the average platelet count was only 53.88*109/L after the T315I mutation (P<0.01). The results also showed that the survival time of patients with a high proportion of blast cells or a high number of white blood cells was obviously shortened. CONCLUSION: Patients platelet count decreased when detected with the T315I mutation compared with the initial diagnosis. Combined use of different TKIs and complex chromosomal karyotypes may promote the development of the T315I mutation. When the ratio of blast cells was >50% and the number of white blood cells was >20*109/L, poor survival prognosis was observed. PMID- 29026322 TI - Molecular classification of esophagogastric junction carcinoma correlated with prognosis. AB - A novel molecular classification of gastric cancer by the Asian Cancer Research Group (ACRG) is a potential advance in diagnosis and treatment, and it helps to determine prognosis. The use of immunohistochemistry (IHC) rather than gene expression analysis to determine tumor subtypes was evaluated with the aim of determining the feasibility of using the ACRG molecular classification. A total of 69 esophagogastric junction (EGJ) carcinomas were classified as microsatellite instable (MSI, 17.40%, 12 of 69), microsatellite stable with markers of epithelial-to-mesenchymal transition (MSS/EMT, 18.84%, 13 of 69), microsatellite stable with active tumor protein 53 (MSS/TP53+, 27.53%, 19 of 69), and microsatellite stable with inactive TP53 (MSS/TP53-, 36.23%, 25 of 69). The molecular classification did not significantly correlate with anyone of the clinicopathological characteristics of the EGJ carcinoma patients, including age, gender, depth of tumor invasion, the presence of lymph node metastasis, histologic grade, and p-TNM stage of the American Joint Committee on Cancer (P>0.05). Kaplan-Meier survival analysis and log rank tests showed that molecular classification, histologic grade, p-TNM stage, and postoperative adjuvant chemotherapy were significantly associated with overall survival (OS; P<0.05). MSI tumors had the best overall prognosis followed by MSS/TP53- and MSS/TP53+. MSS/EMT tumors had the worst overall prognosis. Multivariate analysis revealed that histologic grade (hazard ratio [HR] =2.216, 95% CI =1.202-4.086), p-TNM stage (HR =2.216, 95% CI =1.202-4.086), and molecular subtype (HR =2.216, 95% CI =1.202-4.086) were independently associated with OS. The preliminary results suggested that the ACRG molecular classification may be a valuable independent prognostic marker for EGJ carcinoma patients and could be performed by IHC analysis. PMID- 29026324 TI - Update of the budget impact analysis of the simplification to atazanavir + ritonavir + lamivudine dual therapy of HIV-positive patients receiving atazanavir based triple therapies in Italy starting from data of the Atlas-M trial. PMID- 29026323 TI - Diagnostic accuracy of Xpert MTB/RIF assay for musculoskeletal tuberculosis: a meta-analysis. AB - OBJECTIVES: Xpert MTB/RIF assay, a rapid and automated real-time nucleic acid amplification test, has been reported for the diagnosis of musculoskeletal tuberculosis (TB) in current years. This meta-analysis aims to determine the diagnostic accuracy of Xpert for the detection of musculoskeletal TB and rifampicin (RIF) resistance. METHODS: We searched PubMed, Embase, China National Knowledge Infrastructure, and Wanfang for original articles published up to 1st June 2017 to identify studies in which the Xpert assay was applied to diagnose musculoskeletal TB. Pooled estimates were calculated using a random-effects model or a fixed-effects model according to heterogeneity. Summary receiver operating characteristic curves and the area under the curve (AUC) were used to summarize overall diagnostic performance. Deeks' test was performed to evaluate potential publication bias. RESULTS: Twelve studies were identified with a pooled sensitivity and specificity of respectively 0.81 (95% confidence interval [CI] 0.78-0.83) and 0.83 (95% CI 0.80-0.86) of Xpert for the diagnosis of musculoskeletal TB. Xpert was highly sensitive (0.89, 95% CI 0.79-0.95) and highly specific (0.96, 95% CI 0.92-0.98) in detecting RIF resistance. AUC (over 0.9) suggested a relatively high level of overall diagnostic accuracy of Xpert for detecting musculoskeletal TB and RIF resistance. Prevalence and reference standard were indicated to be sources of heterogeneity between studies. No publication bias was found. CONCLUSION: This study provides available evidence of the rapid and effective role of Xpert in diagnosing musculoskeletal TB and detecting RIF resistance. PMID- 29026325 TI - Laparoscopic esophageal myotomy versus pneumatic dilation in the treatment of idiopathic achalasia: a meta-analysis of randomized controlled trials. AB - BACKGROUND: Achalasia is a primary esophageal motility disorder of unknown etiology associated with abnormalities in peristalsis and lower esophageal sphincter relaxation. The disease is incurable; however, definitive treatment procedures like pneumatic dilation (PD)/balloon dilation and laparoscopic esophageal myotomy (LEM) are performed to relieve dysphagia and related symptoms. Currently, there is paucity of data comparing the outcomes of these procedures. The aim of this meta-analysis is to compare the short- and long-term success rates of PD and LEM. METHODS: A thorough systematic search of PubMed, Scopus, clinicaltrials.gov, and Cochrane library was conducted for randomized controlled trials (RCTs) comparing the outcomes of PD versus LEM in the treatment of achalasia. The Mantel-Haenszel method and random effect model were used to analyze the data. RCTs with outcome data at 3-month, 1-year, and 5-year intervals were analyzed. RESULTS: A total of 437,378 and 254 patients at 3-month, 1-year, and 5-year intervals were analyzed for outcome data. At 3 months and 1 year, PD was not as effective as LEM (odds ratio [OR]: 0.50; confidence interval [CI] 0.31 0.82; P = 0.009 and OR: 0.47; CI 0.22-0.99; P = 0.21) but at 5 years, one procedure was non-inferior to the other (OR: 0.62; 0.33-1.19; P = 0.34). CONCLUSION: PD was as effective as LEM in relieving symptoms of achalasia in the long-term. PMID- 29026326 TI - Tacrolimus versus anti-tumor necrosis factor agents for steroid-refractory active ulcerative colitis based on the severity of endoscopic findings: a single-center, open-label cohort study. AB - BACKGROUND AND AIMS: At Saitama Medical Center, for remission induction in active ulcerative colitis (UC) patients with endoscopic evidence of severe disease, we tend to preferentially use tacrolimus (TAC) over anti-tumor necrosis factor (TNF) alpha agents. We conducted this study to evaluate the validity of our therapeutic strategies. PATIENTS AND METHODS: This retrospective study was conducted in 52 steroid-refractory active UC patients with a Clinical Activity Index (CAI) score of >=7 who were receiving remission induction therapy with TAC or anti-TNF-alpha agents. The patients were divided into a TAC treatment group (TAC group, n = 29) and an anti-TNF-alpha agent treatment group (anti-TNF group, n = 23). The CAI, Ulcerative Colitis Endoscopic Index of Severity (UCEIS) and incidence of events (relapse, hospitalization and surgery) were retrospectively analyzed. RESULTS: At treatment initiation, the CAI score was 12.6 in the TAC group and 11.5 in the anti-TNF group (P = 0.09), while the corresponding values of the UCEIS were 6.5 and 5.1, respectively (P = 0.0035). The clinical remission rate at 12 weeks was 55% (65% when only the subgroup that received rapid induction therapy was included in the analysis) in the TAC group and 57% in the anti-TNF group, with no significant difference. The cumulative event-free rates at 1, 6 and 12 months were 65.5%, 39.4%, and 39.4%, respectively, in the TAC group and 95.7%, 77.2% and 71.7%, respectively, in the anti-TNF group (P = 0.0037). CONCLUSION: Rapid induction therapy with TAC tended to be selected for active UC patients with endoscopic evidence of severe disease, and the present study supported the validity of this therapeutic approach. However, transition to the remission maintenance phase was more favorable in the anti-TNF group. PMID- 29026327 TI - Characterization and prevalence of spondyloarthritis and peripheral arthritis among patients with inflammatory bowel disease. AB - BACKGROUND: Joint complaints such as spondyloarthritis and peripheral arthritis are the most common extraintestinal manifestations in patients with inflammatory bowel disease (IBD); however, the evaluation of these symptoms are poorly described. OBJECTIVES: To examine the clinical characteristics and prevalence of ankylosing spondylitis (AS) and other joint complaints among patients with IBD. METHODS: In a local cohort of patients diagnosed with IBD between 1996 and 2009, we performed a retrospective study at the Veterans Affairs Hospital. Patients with IBD were identified by International Classification of Diseases, Ninth Revision codes and confirmed by chart review. The occurrence of AS, peripheral arthritis, and other peripheral and axial joint symptoms were identified. RESULTS: We identified 626 patients with IBD between ages 18 and 90 (90% males), of whom 57% had ulcerative colitis (UC), 74% were Caucasians, and the mean age at diagnosis was 54 (+/-16) years. Among the study population, 108 patients (17%) had at least one type of joint pain. Among these 17% with joint pain, 12% had AS, 43% had peripheral arthritis, 32% had chronic back pain without AS, and 13% had other types of joint pain. The overall prevalence of peripheral arthritis among patients with IBD was three times higher than that of AS (7% vs 2.1%, respectively, OR 3.5; 95% confidence interval [CI] 1.9-6.5; p=0.001). There was no difference in the prevalence of AS or peripheral arthritis between patients with Crohn's disease and UC. The initial diagnosis of AS occurred after the initial diagnosis of IBD in 80% of patients within a mean (SD) period of 5.6 (+/ 6) years. CONCLUSION: Spondyloarthritis among patients with IBD is usually diagnosed after the initial diagnosis of IBD. No difference in the prevalence of AS or peripheral arthritis was observed by IBD type, age, or race. Recognition and understanding of these results will have important implications for the management of IBD patients with spondyloarthritis. PMID- 29026328 TI - Phosphorylation of STAT proteins by recombinant human IL-6 in immortalized human chondrocyte cell lines, T/C28a2 and C28/I2. AB - Two immortalized human juvenile chondrocyte cell lines, T/C28a2 and C28/I2, were employed to determine the extent to which recombinant human (rh) IL-6, a known cytokine activator of the Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway in many cell types, caused STAT proteins to be phosphorylated. The results showed that STAT3 was constitutively phosphorylated in the absence of rhIL-6 in T/C28a2 chondrocytes. However, C28/I2 chondrocytes treated with rhIL-6 caused STAT1, STAT3, and STAT5 to be phosphorylated without altering total unphosphorylated STAT proteins. STAT3 phosphorylation in response to rhIL-6 in T/C28a and C28/I2 chondrocytes was efficiently blocked by the JAK3 selective inhibitor WHI-P131 (Janex-1) and by soluble IL-6 receptor-alpha (sIL 6R). However, the combination of rhIL-6 and ruxolitinib, a JAK1/JAK2-selective inhibitor, was a less effective inhibitor of STAT protein activation. These findings showed that rhIL-6 activated STAT proteins in the C28/I2 chondrocyte cell line. STAT protein phosphorylation could be blocked by a JAK3-selective inhibitor or by the combination of rhIL-6 and sIL-6R. PMID- 29026329 TI - Pharmacogenomic testing: aiding in the management of psychotropic therapy for adolescents with autism spectrum disorders. AB - Adolescents with autism have higher rates of anxiety than the general adolescent population. They often struggle to express psychological symptoms verbally where their symptoms may manifest as withdrawal and agitation. Adolescent patients with autism have higher rates of polypharmacy and high-risk psychiatric medication use (eg, atypical antipsychotics) than other patients with psychiatric illness. Primary care pediatricians are at the front lines of psychiatric management for patients with autism. Yet, they have inadequate access to pediatric psychiatry for complex medication management. Pharmacogenomic testing can provide personalized drug metabolism profiles for a majority of psychotropic medications. Primary care based pharmacogenomic testing for adolescents with autism on one or more psychiatric medications may help individualize and optimize complex medication regimens, while promoting drug safety. PMID- 29026330 TI - Parecoxib relieves pain and has an opioid-sparing effect following major gastrointestinal surgery. AB - PURPOSE: Parecoxib provides analgesia following a variety of surgeries, including minor gastrointestinal procedures. To our knowledge, there is no data on parecoxib following major gastrointestinal surgery. This study assessed the efficacy and opioid-sparing effects of parecoxib following major gastrointestinal surgeries. PATIENTS AND METHODS: Patients in this analysis were a subset from a large, randomized, double-blind, placebo-controlled trial of parecoxib following noncardiac surgeries and consisted of those undergoing a variety of major gastrointestinal surgeries via laparotomy. Pain, pain interference with function, supplemental opioid utilization, opioid-related symptoms, and Patient/Physician Global Evaluation of Study Medication were compared between placebo and parecoxib groups in the 2-3 days following surgery. RESULTS: Significantly (p<0.001) lower pain scores were observed in the parecoxib group (n=111), relative to placebo (n=126), on Day 2 (-33%) and Day 3 (-35%). Pain interference with function scores was also significantly (p<0.001) lower among patients receiving parecoxib compared with placebo on Day 2 (-29%) and Day 3 (-36%). At 24, 48, and 72 hours, the cumulative amount of supplemental morphine consumed was 45%, 41%, and 40% less in patients receiving parecoxib compared with placebo (all p<0.001). The risk of experiencing >=1 opioid-related symptoms was also significantly lower with parecoxib than with placebo on Day 2 (relative risk=0.75; p<0.001). Specifically, the risks of fatigue and drowsiness were significantly (both p<0.05) lower in patients receiving parecoxib compared to those receiving placebo. Patient and Physician Global Evaluation of Study Medication scores were significantly better in the parecoxib group than in the placebo group (p<0.001). CONCLUSION: This study is the first to demonstrate that multiple-dose parecoxib, initiated upon recovery from anesthesia, provides analgesia and opioid-sparing effects following a variety of major gastrointestinal surgeries employing laparotomy. PMID- 29026332 TI - Ultrasound-guided methotrexate injection for De Quervain disease of the wrist: what lies beyond the horizon? AB - De Quervain disease (DQVD) is one of the most common causes of lateral wrist pain and can lead to significant disability. The current case involves a right-handed, middle-aged, female patient with severe lateral wrist pain due to DQVD. Her pain was not responsive to oral non-steroidal anti-inflammatory drugs, rehabilitation, and repeated corticosteroid injections. Because she refused surgical intervention, we performed ultrasound-guided methotrexate injections (four times). After the injections, dramatic pain relief, functional improvement, and reduction of the thickness of the retinaculum and tendons in the first dorsal extensor compartment of the wrist were noted. This case report highlights the potential usefulness of ultrasound-guided methotrexate injection for recalcitrant DQVD of the wrist. PMID- 29026333 TI - Analgesic efficacy and safety of epidural oxycodone in patients undergoing total hip arthroplasty: a pilot study. AB - BACKGROUND AND OBJECTIVES: Oxycodone is poorly studied as an adjuvant to central blockades. The aim of this pilot study was to assess the efficacy and safety of oxycodone hydrochloride in epidural blockade among patients undergoing total hip arthroplasty (THA). PATIENTS AND METHODS: In 11 patients (American Society of Anesthesiologists physical status classification system II/III, age range: 59-82 years), THA was conducted with an epidural blockade using 15 mL 0.25% bupivacaine (37.5 mg) with 5 mg oxycodone hydrochloride and sedation with propofol infusion at a dose of 3-5 mg/kg/h. After the surgery, patients received ketoprofen at a dose of 100 mg twice daily. In the first 24 hours postoperative period, pain was assessed by numerical rating scale at rest and on movement; adverse effects (AEs) were recorded; and plasma concentrations of oxycodone, noroxycodone, and bupivacaine were measured. RESULTS: The administration of epidural oxycodone at a dose of 5 mg in patients undergoing THA provided analgesia for a mean time of 10.3+/-4.89 h. In one patient, mild pruritus was observed. Oxycodone did not evoke other AEs. Plasma concentrations of oxycodone while preserving analgesia were >2.9 ng/mL. Noroxycodone concentrations in plasma did not guarantee analgesic effect. CONCLUSION: The administration of epidural oxycodone at a dose of 5 mg prolongs the analgesia period to ~10 hours in patients after THA. Oxycodone may evoke pruritus. A 5 mg dose of oxycodone hydrochloride used in an epidural blockade seems to be a safe drug in patients after THA. PMID- 29026334 TI - An investigation into the effect of depth of anesthesia on postoperative pain in laparoscopic cholecystectomy surgery: a double-blind clinical trial. AB - BACKGROUNDS AND OBJECTIVE: Some studies have shown that deeper anesthesia is more effective on postoperative analgesia and reduces the need for sedative drugs. This study sought to investigate the effect of depth of anesthesia on postoperative pain in laparoscopic cholecystectomy. MATERIALS AND METHODS: In this double-blind clinical trial, 60 patients undergoing laparoscopic cholecystectomy were randomly divided into two groups: low bispectral index (L BIS=35-44) and high bispectral index (H-BIS=45-55). Anesthesia protocol was the same for both groups (propofol and remifentanil). The pain intensity (at rest and during cough) was evaluated based on the visual analog scale scores in recovery and at 8, 16 and 24 hours after surgery. RESULTS: The mean pain score was significantly lower in patients in the L-BIS group at all examined times at rest and during cough than that in the H-BIS group. The number of patients in need of additional sedative drug in the H-BIS group in recovery was significantly more than that in the L-BIS group (27 vs 18 patients, P=0.007). The incidence of nausea in the recovery room 8 hours after the surgery was significantly less in the L-BIS group than that in the H-BIS group, while at 16 and 24 hours, no case of nausea was reported in the two groups. CONCLUSION: Given the results of this study, it seems that general anesthesia with propofol and remifentanil with L-BIS causes less need for additional analgesic drug and less nausea and vomiting compared to anesthesia with H-BIS. PMID- 29026331 TI - Poorly controlled postoperative pain: prevalence, consequences, and prevention. AB - This review provides an overview of the clinical issue of poorly controlled postoperative pain and therapeutic approaches that may help to address this common unresolved health-care challenge. Postoperative pain is not adequately managed in greater than 80% of patients in the US, although rates vary depending on such factors as type of surgery performed, analgesic/anesthetic intervention used, and time elapsed after surgery. Poorly controlled acute postoperative pain is associated with increased morbidity, functional and quality-of-life impairment, delayed recovery time, prolonged duration of opioid use, and higher health-care costs. In addition, the presence and intensity of acute pain during or after surgery is predictive of the development of chronic pain. More effective analgesic/anesthetic measures in the perioperative period are needed to prevent the progression to persistent pain. Although clinical findings are inconsistent, some studies of local anesthetics and nonopioid analgesics have suggested potential benefits as preventive interventions. Conventional opioids remain the standard of care for the management of acute postoperative pain; however, the risk of opioid-related adverse events can limit optimal dosing for analgesia, leading to poorly controlled acute postoperative pain. Several new opioids have been developed that modulate MU-receptor activity by selectively engaging intracellular pathways associated with analgesia and not those associated with adverse events, creating a wider therapeutic window than unselective conventional opioids. In clinical studies, oliceridine (TRV130), a novel MU-receptor G-protein pathway-selective modulator, produced rapid postoperative analgesia with reduced prevalence of adverse events versus morphine. PMID- 29026335 TI - Challenging the standard of care in advanced melanoma: focus on pembrolizumab. AB - The last several years have seen a dramatic rise in the number of effective therapies that have been shown to improve survival outcomes for patients with advanced melanoma. Among these treatments are the immune checkpoint inhibitors, a new class of immunotherapy, that have demonstrated the ability to improve both response rates and survival outcomes. Pembrolizumab, an immune checkpoint inhibitor that blocks the negative regulatory PD-1 receptor on T-cell lymphocytes, has shown improved efficacy compared to standard therapies with an acceptable tolerability profile. Additionally, this agent is being evaluated in adjuvant and combination trial strategies that have great potential to further advance outcomes. This review focuses on the advances that pembrolizumab has made in melanoma and what studies are upcoming that could change the future of melanoma treatment yet again. PMID- 29026336 TI - Factors associated with continuing emergence of beta-thalassemia major despite prenatal testing: a cross-sectional survey. AB - PURPOSE: Health care initiatives focusing on prenatal testing and premarital genetic screening aiming to reduce the incidence of beta-thalassemia have emerged during the last decade. In Palestine, 4% of the population are known thalassemia carriers with new cases continuing to appear despite the availability of prenatal testing. This study aims to identify factors that influence the decision to retain or abort fetuses affected by beta-thalassemia in Palestine. METHODS: Convenience sampling was used to select 32 women (72 fetuses) who were at risk of having a baby with beta-thalassemia. A questionnaire on prenatal testing, test results, pregnancy outcomes, and factors influencing the decision to terminate the pregnancy were used for this cross-sectional study. The data were analyzed using SPSS version 17. RESULTS: Among the fetuses screened, 36 (50%) were thalassemia carriers and 20 (28%) had beta-thalassemia; 17 (85%) affected fetuses were aborted. Religious beliefs were the most cited reason for opposing abortion while prior experience with beta-thalassemia patients and awareness programs promoted abortions. Mothers who opted to retain an affected fetus had modest educational attainment. Higher educational level was significantly associated with the decision to abort an affected fetus (p<0.05). CONCLUSION: A religious consensus is needed on the abortion of fetuses affected by beta-thalassemia. Improving female education and increasing awareness on thalassemia could help reduce the incidence of beta-thalassemia in Palestine and around the world. PMID- 29026337 TI - Rate and factors affecting non-exclusive breastfeeding among Thai women under the breastfeeding promotion program. AB - OBJECTIVE: The objective of this study was to assess the rate of non-exclusive breastfeeding and associated factors among Thai women under the Breastfeeding Promotion Program. METHODS: This was a prospective descriptive study that involved term postpartum women who attended the Breastfeeding Clinic at Srinagarind Hospital in Thailand, from April to December 2016. Abstracted data included baseline characteristics, obstetric history, breastfeeding history, problems in breastfeeding at day 3 and 2 weeks, and feeding status at 12 weeks postpartum. Univariate and multivariate logistic regression methods were used to determine significant factors predicting non-exclusive breastfeeding. RESULTS: Of the 500 postpartum women enrolled in this study, follow-up data at 12 weeks postpartum were available for 368 women (73.6%). The rate of non-exclusive breastfeeding assessed at 12 weeks postpartum was 26.4% (95% CI 21.9%-31.2%). Nipple problems and pain during the first 3 days postpartum and milk storage problems at 2 weeks postpartum were the major reasons for non-exclusive breastfeeding (69.4% and 59.1%, respectively). The significant independent factors that predicted these included patients not having confidence in their ability to breastfeed exclusively or not having any intention to do so (OR 7.22; 95% CI 3.26-14.24), no rooming-in (OR 2.31; 95% CI 1.04-5.12), and low milk quantity at 2 weeks postpartum (OR 3.75; 95% CI 1.70-8.29). CONCLUSION: The rate of non-exclusive breastfeeding in this study was ~26%, and significant associated factors included having lack of confidence/intention, no rooming-in, and low milk quantity reported at 2 weeks postpartum. PMID- 29026338 TI - Utilization of healthcare services in postpartum women in the Philippines who delivered at home and the effects on their health: a cross-sectional analytical study. AB - BACKGROUND: A low ratio of utilization of healthcare services in postpartum women may contribute to maternal deaths during the postpartum period. The maternal mortality ratio is high in the Philippines. The aim of this study was to examine the current utilization of healthcare services and the effects on the health of women in the Philippines who delivered at home. METHODS: This was a cross sectional analytical study, based on a self-administrated questionnaire, conducted from March 2015 to February 2016 in Muntinlupa, Philippines. Sixty three postpartum women who delivered at home or at a facility were enrolled for this study. A questionnaire containing questions regarding characteristics, utilization of healthcare services, and abnormal symptoms during postpartum period was administered. To analyze the questionnaire data, the sample was divided into delivery at home and delivery at a facility. Chi-square test, Fisher's exact test, and Mann-Whitney U test were used. RESULTS: There were significant differences in the type of birth attendant, area of residence, monthly income, and maternal and child health book usage between women who delivered at home and those who delivered at a facility (P<0.01). There was significant difference in the utilization of antenatal checkup (P<0.01) during pregnancy, whilst there was no significant difference in utilization of healthcare services during the postpartum period. Women who delivered at home were more likely to experience feeling of irritated eyes and headaches, and continuous abdominal pain (P<0.05). CONCLUSION: Financial and environmental barriers might hinder the utilization of healthcare services by women who deliver at home in the Philippines. Low utilization of healthcare services in women who deliver at home might result in more frequent abnormal symptoms during postpartum. PMID- 29026339 TI - Possibility of using superoxide dismutase and glutathione peroxidase as endometriosis biomarkers. AB - OBJECTIVE: To study the possibility of using superoxide dismutase (SOD) and glutathione peroxidase (GPx) as combined preoperative biomarkers for endometriosis. PARTICIPANTS AND METHODS: Female patients aged between 18 and 45 years old who came to the Gynecology outpatient clinic, Thammasat University Hospital, during September 2013-2016 with the complaint of gynecologic symptoms suspected of endometriosis, and who were positively diagnosed with endometriosis, were included in this study. All patients underwent conservative laparoscopic ovarian cystectomy with histopathological report. The control group consisted of healthy females of reproductive age who came to the outpatient clinic. The plasma SOD and GPx were measured from blood samples with commercial kits. A receiver operating characteristic curve was generated for plasma activity of SOD, GPx, and combined tests. The cutoff values were selected at the most appropriate sensitivity and specificity. RESULT: All 36 cases were included in this study. Mean ages of patients in the patient and control groups were 33.1 and 28.6 years old, respectively. SOD and GPx activities of disease and control group were 6.15 and 8.11, 463.9 and 472.34 nmole/min/mL unit, respectively. The sensitivity and 1 specificity of the combined test were calculated at 0.78, with sensitivity, specificity, accuracy, positive predictive value, and negative predictive value being 68.75, 80.77, 76.50, 69.23, and 80.33, respectively. CONCLUSION: A combination testing of SOD and GPx can possibly be used as preoperative biomarker for endometriosis. PMID- 29026340 TI - Economic impact of the use of rifaximin 550 mg twice daily for the treatment of overt hepatic encephalopathy in Italy. AB - PURPOSE: Hepatic encephalopathy (HE) is associated with a reduced survival, an increased risk of hospitalization for recurrences, and a reduced health-related quality of life. The purpose of the present economic analysis was to evaluate the impact on the Italian National Health Service (INHS) expenditure of the treatment with rifaximin 550 mg twice daily (Tixteller(r)/Tixtar(r)) for the reduction of the recurrences of overt HE, with respect to the current treatment approach. PATIENTS AND METHODS: Costs associated with patients treated with rifaximin 550 mg twice daily were estimated considering the reduction in hospitalizations for HE recurrences revealed by registrative clinical trial (-50%) applied to the hospitalization rate (42.5%) emerging from an Italian observational real-world study; costs associated with patients not treated with rifaximin were estimated based on the hospitalization rate, resulting from the same Italian observational study. Sensitivity analyses considering possible different discount levels to INHS structures for rifaximin were performed. The INHS perspective for a period of 3 years was considered. RESULTS: The treatment with rifaximin 550 mg twice daily, although increasing drug costs, is associated with a reduction in hospitalizations for HE recurrences that leads to an overall reduction of total costs charged to INHS, which could be estimated, based on the forecasted uptake of the treatment, at about ?130,000 in the first year, reaching ~?260,000 in the third year. Considering a possible discount for rifaximin 550 mg to INHS structure of 20%, the total saving at the third year accounts for ~?3,000,000. Moreover, a relevant reduction in the number of hospitalizations and bed days is associated with rifaximin treatment. CONCLUSION: The treatment with rifaximin 550 mg twice daily, even if associated with an increase in drug expenditure, results in a reduction in total health care costs charged to INHS due to a reduction in hospitalizations for HE recurrences. PMID- 29026341 TI - Benefits of different postoperative treatments in patients undergoing knee arthroscopic debridement. AB - PURPOSE: To assess the effectiveness of viscosupplementation or platelet-rich plasma (PRP), compared to standard care, for pain relief after knee arthroscopic debridement in patients with meniscal pathology and osteoarthritis (OA), under normal clinical practice conditions. PATIENTS AND METHODS: We conducted a prospective, randomized, evaluator-blind, pilot study. After arthroscopy, patients were randomized to receive 1) five injections of HA1 (Suprahyal(r)/Adant(r)); 2) four injections of HA2 (Orthovisc(r)); 3) three injections of HA3 (Synvisc(r)); 4) a single injection of PRP (GPSTM II); or 5) standard care (control). Patients were followed up for 18 months. Clinical outcomes were evaluated using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) at 3, 6, 12, and 18 months. Minimally Clinical Important Improvement (MCII), as relative improvement >=20 for pain and function, was also calculated. RESULTS: Fifty patients were included. At early follow-up (3 months), total WOMAC scores improved in all groups compared to baseline with reductions of 44.79% (HA1), 24.02% (HA2), 40.38% (HA3), 39.77% (PRP), and 27.64% (control) (p=0.002 HA1 compared to HA2). At 18 months, the higher improvement in total WOMAC was in HA1 with a 65.20% reduction, followed by PRP (55.01%), HA3 (49.57%), and HA2 (29.82%), whereas the control group had a 14.55% increase over baseline (p=0.001 control compared to HA1 and HA3). The percentage of patients achieving the MCII for both pain and function at 18 months was 100% (HA1), 80% (HA3), 60% (HA2), and 60% (PRP), whereas, in the control group, all patients returned to pre arthroscopy levels. There were no adverse events attributable to surgery or to intraarticular administration. CONCLUSION: Viscosupplementation following arthroscopy is more effective than PRP in adequately selected patients with meniscal lesions occurring concomitantly with OA. Further controlled studies with a larger sample size and/or alternative regimens would be of interest for the scientific community. PMID- 29026342 TI - Flow visualization over a thick blunt trailing-edge airfoil with base cavity at low Reynolds numbers using PIV technique. AB - ABSTRACT: In this study, the effect of cutting the end of a thick airfoil and adding a cavity on its flow pattern is studied experimentally using PIV technique. First, by cutting 30% chord length of the Riso airfoil, a thick blunt trialing-edge airfoil is generated. The velocity field around the original airfoil and the new airfoil is measured by PIV technique and compared with each other. Then, adding two parallel plates to the end of the new airfoil forms the desired cavity. Continuous measurement of unsteady flow velocity over the Riso airfoil with thick blunt trailing edge and base cavity is the most important innovation of this research. The results show that cutting off the end of the airfoil decreases the wake region behind the airfoil, when separation occurs. Moreover, adding a cavity to the end of the thickened airfoil causes an increase in momentum and a further decrease in the wake behind the trailing edge that leads to a drag reduction in comparison with the thickened airfoil without cavity. Furthermore, using cavity decreases the Strouhal number and vortex shedding frequency. GRAPHICAL ABSTRACT: PMID- 29026343 TI - Photothermal stability of biologically and chemically synthesized gold nanoprisms. AB - We report here the influence of the irradiation with femtosecond laser pulses on the gold nanoprisms synthesized using biological and chemical methods. For the bio-mediated growth, we used plant extract as a source of reducing, structure directing, and stabilizing agents, while for the chemical method, we applied three-step protocol, involving chemicals commonly used in the synthesis of nanostructures. Exposition of the nanostructures to the laser beam causes morphological changes, which affect their extinction spectra. These modifications were followed using absorption spectroscopy and transmission electron microscopy. The observed effects depend on the applied laser power and excitation wavelength. Under resonance conditions, rounding of the tips of triangular nanoparticles and transformation towards more stable, spherical form were noticed. These changes were faster under higher laser power. Such shape modifications were weaker under off-resonance conditions. Moreover, chemically synthesized gold nanoprisms were less susceptible to the morphological changes than those obtained using plant extract; however, their colloidal stability was disrupted by long-time irradiation. Graphical abstract?. PMID- 29026344 TI - Convex congruences. AB - For an algebra [Formula: see text] belonging to a quasivariety [Formula: see text], the quotient [Formula: see text] need not belong to [Formula: see text] for every [Formula: see text]. The natural question arises for which [Formula: see text]. We consider algebras [Formula: see text] of type (2, 0) where a partial order relation is determined by the operations [Formula: see text] and 1. Within these, we characterize congruences on [Formula: see text] for which [Formula: see text] belongs to the same quasivariety as [Formula: see text]. In several particular cases, these congruences are determined by the property that every class is a convex subset of A. PMID- 29026347 TI - From the Editor's Desk: Well-Being in the Workplace. PMID- 29026345 TI - Tolerated drugs in subjects with severe cutaneous adverse reactions (SCARs) induced by anticonvulsants and review of the literature. AB - BACKGROUND: Anticonvulsant hypersensitivity syndrome represents a rare but potentially fatal kind of adverse drug reaction. This clinical picture often hampers the flexibility with which alternative anticonvulsants or even other classes of drugs are prescribed in these patients, negatively affecting the efficacy of treatment and the course of the disease. The aim of this study was to analyse a group of six patients with severe cutaneous drug reactions induced by anticonvulsants and to report which alternative antiepileptic drugs and which drugs of other classes were tolerated. CASE PRESENTATION: A total of six patients (2 males and 4 females, age 11-73 years) are described in this study. In all the patients the onset of the severe cutaneous drug reactions was 2-4 weeks after initiating the anticonvulsant therapy: 2 out of 6 patients presented with a drug reaction with eosinophilia and systemic symptoms under therapy with phenytoin; 2 out of 6 presented with Stevens-Johnson syndrome under therapy with lamotrigine; and 2 out of 6 presented with a toxic epidermal necrolysis, one of them under therapy with valproic acid, and the other one under therapy with lamotrigine. Alternative anticonvulsants tolerated after the reaction were: clonazepam, levetiracetam, diazepam, delorazepam and lormetazepam. CONCLUSIONS: In our cases we observed that non aromatic anticonvulsants and benzodiazepines were well tolerated as alternative treatments in six patients with reactions to aromatic anticonvulsivants and that the risk of hypersensitivity reactions to other drug classes was not increased as compared to general population. PMID- 29026348 TI - Letter to the Editor: Positron Emission Tomography-Positive Pleural-Based Nodule Following Talc Pleurodesis. PMID- 29026346 TI - Treatment with direct oral anticoagulants in patients with upper extremity deep vein thrombosis. AB - BACKGROUND: Upper extremity deep vein thrombosis (UEDVT) constitutes around 10% of all DVT, and can cause both pulmonary embolism (PE) and postthrombotic syndrome (PTS) in the arm. The incidence of secondary UEDVT is increasing due to widespread use of central venous catheters in patients with cancer and other chronic diseases. The safety and efficacy of using new direct acting oral anti coagulants (DOAC) in the treatment of UEDVT has not been systematically evaluated. Our aims were to evaulate efficacy, safety, and risk of recurrence of venous thromboembolism (VTE) during DOAC treatment in UEDVT patients. METHODS: Data from the Swedish national anticoagulation registry (AuriculA) was retrospectively evaluated for all 55 patients (27 men aged 23-86 years, and 28 women aged 18-75 years) treated with DOAC because of UEDVT between 2012 and 2015 in the southernmost hospital region of Sweden with 1.3 million inhabitants in 2016. Patients were followed for 6 months. RESULTS: During 6 months after institution of DOAC treatment there was one recurrence (2%) of DVT during treatment and two (4%) recurrences after cessation of treatment. No patient died, whereas one (2%) suffered a clinically relevant nonmajor bleeding. CONCLUSION: DOAC can be used in the treatment of UEDVT patients with acceptable efficacy and safety. PMID- 29026349 TI - Letter to the Editor: A Delayed Diagnosis of Iatrogenic Guidewire Retention After Central Line Placement. PMID- 29026350 TI - Letter to the Editor: Mobile Technology Can Improve Adherence and Lessen Tacrolimus Variability in Patients Receiving Kidney Transplants. PMID- 29026351 TI - Clinical Images: Four-Dimensional Computed Tomography-Future of Preoperative Parathyroid Adenoma Imaging. PMID- 29026352 TI - Bioethics in Practice: Dr Alton Ochsner's Ethics. PMID- 29026353 TI - Association of Body Mass Index and Postoperative Acute Kidney Injury in Patients Undergoing Laparoscopic Surgery. AB - BACKGROUND: Whether the deleterious effects of carbon dioxide pneumoperitoneum on the kidneys are exacerbated in the obese population remains unknown. We hypothesized that increased body mass index (BMI) is associated with an increased incidence of postoperative acute kidney injury (AKI) in patients undergoing noncardiac laparoscopic surgery. METHODS: Following institutional review board approval, we analyzed data on 8,543 adult patients with American Society of Anesthesiologists physical status scores of I-IV who had inpatient noncardiac laparoscopic surgery from 2005-2014. Because the exposure (current BMI) is a chronic condition, we a priori assumed that diabetes mellitus, hypertension, coronary artery disease, and chronic obstructive pulmonary disease might mediate the effect of obesity on outcome. Our primary analysis was a proportional odds logistic regression model with current BMI as a predictor and AKI as an ordinal outcome. RESULTS: After controlling for potential confounding variables, the odds of developing a more serious level of AKI was 7% (95% CI 0%, 15%) greater with a 5-unit increase in BMI (P=0.05). When the analysis was adjusted for the a priori mediators in an attempt to estimate the pure effect of BMI on AKI, the result was no longer significant (Wald test P=0.35), with the residual effect of BMI of 3% (95% CI -4%, 11%). CONCLUSION: We found a marginal association between BMI and an increased risk of developing AKI in adult patients after having noncardiac laparoscopic surgery. The BMI effect became insignificant when potential mediator variables were considered. The association of BMI and AKI after noncardiac laparoscopic surgery is likely mediated through components of the metabolic syndrome. PMID- 29026354 TI - Novel Regional Techniques for Total Knee Arthroplasty Promote Reduced Hospital Length of Stay: An Analysis of 106 Patients. AB - BACKGROUND: Novel regional techniques, including the adductor canal block (ACB) and the local anesthetic infiltration between the popliteal artery and capsule of the knee (IPACK) block, provide an alternative approach for controlling pain following total knee arthroplasty (TKA). This study compared 3 regional techniques (femoral nerve catheter [FNC] block alone, FNC block with IPACK, and ACB with IPACK) on pain scores, opioid consumption, performance during physical therapy, and hospital length of stay in patients undergoing TKA. METHODS: All patients had a continuous perineural infusion, either FNC block or ACB. Patients in the IPACK block groups also received a single injection 30-mL IPACK block of 0.25% ropivacaine. Pain scores and opioid consumption were recorded at postanesthesia care unit discharge and again at 8-hour intervals for 48 hours. Physical therapy performance was measured on postoperative days (POD) 1 and 2, and hospital length of stay was recorded. RESULTS: We found no significant differences in the 3 groups with regard to baseline patient demographics. Although we observed no differences in pain scores between the 3 groups, opioid consumption was significantly reduced in the FNC with IPACK group. Physical therapy performance was significantly better on POD 1 in the ACB with IPACK group compared to the other 2 groups. Hospital length of stay was significantly shorter in the ACB with IPACK group. CONCLUSION: This study demonstrated that an IPACK block reduced opioid consumption by providing effective supplemental analgesia following TKA compared to the FNC-only technique. ACB with IPACK provided equivalent analgesia and improved physical therapy performance, allowing earlier hospital discharge. PMID- 29026355 TI - Colistin and Polymyxin B Minimal Inhibitory Concentrations Determined by Etest Found Unreliable for Gram-Negative Bacilli. AB - BACKGROUND: A reliable method of polymyxin B and E (colistin) susceptibility testing remains elusive. These drugs diffuse poorly into agar, creating potentially inaccurate Etest and disk diffusion results, and testing by these methods is not recommended. Broth microdilution is the reference testing method, although it can be sometimes difficult to interpret. Currently, when a colistin susceptibility test is ordered for a patient in the Ochsner Health System, our diagnostic microbiology laboratory performs the Etest. As an in-house quality assessment project, we compared colistin and polymyxin B minimal inhibitory concentrations (MICs) determined by Etest with MICs determined by broth microdilution to evaluate whether colistin MICs are accurately being reported by Etest. METHODS: A total of 143 nonduplicate clinical isolates from Ochsner patients during 2015-2016 were tested: Acinetobacter baumannii (n=60), Pseudomonas aeruginosa (n=44), and Enterobacteriaceae (n=39) (13 Escherichia coli, 15 Klebsiella spp, and 11 Enterobacter spp). Colistin and polymyxin B MICs were determined by Etest and broth microdilution. RESULTS: Using broth microdilution, 16/143 (11%) isolates were nonsusceptible to colistin, and 12/143 (8%) were nonsusceptible to polymyxin B. With Etest, 4/143 (3%) isolates were nonsusceptible to colistin, and 7/143 (5%) were nonsusceptible to polymyxin B. Essential agreement of colistin and polymyxin B MICs between broth microdilution and Etest was 84/143 (59%) and 87/143 (61%), respectively. Categorical agreement for colistin and polymyxin B was 127/143 (89%) and 126/143 (88%), respectively. CONCLUSION: We found a high rate of discrepancy between colistin and polymyxin B Etest and broth microdilution MICs. Very major errors (colistin/polymyxin B susceptible by Etest, colistin/polymyxin B-resistant by broth microdilution) were detected in 10% of isolates tested with colistin and 8% of polymyxin B-tested isolates. The data from this study confirm that broth microdilution should be performed for susceptibility testing of polymyxins. PMID- 29026356 TI - Comparison of In-Hospital Maternal Mortality Between Hospital Systems in Queensland, Australia and Louisiana, United States. AB - BACKGROUND: It is well documented that the American maternal mortality ratio has increased during the years 2000-2015. The Australian maternal mortality ratio, in contrast, has decreased during the same time period, a trend common among most Western countries. METHODS: This study was a retrospective cohort study of cases of in-hospital maternal deaths in the Ochsner Health System (Louisiana, United States) and the Queensland Health System (Australia) from 1995 to 2013. The aim was to determine if American and Australian women have a similar rate of preventable maternal death and if the deaths were attributable to the same factors. A multidisciplinary team assessed medical records to determine preventability. RESULTS: Sixteen eligible medical records were identified in the Ochsner Health System and 15 in the Queensland Health System. In the American cohort, deaths in the private insurance group (n=5) were least likely to be preventable (P=0.003). Australian maternal deaths were less likely to occur among women with late or no prenatal care than American maternal deaths; the risk difference was 44.5% for all deaths (95% confidence interval [CI]=9.7%, 79.4%; P=0.03) and 50.0% for potentially preventable deaths (95% CI=9.3%, 90.6%; P=0.04). CONCLUSION: Women from Louisiana, United States and Queensland, Australia have similar rates of preventable maternal death. No statistically significant factors explained trends in Australian maternal death; American maternal mortality was significantly associated with point of entry into prenatal care, likely influenced by insurance status. Furthermore, the majority of deaths in this group were complicated by hospital systems-based factors. PMID- 29026357 TI - Use of Digital Pupillometry to Measure Sedative Response to Propofol. AB - BACKGROUND: Digital pupillometry (DP) accurately and precisely measures pupillary responses. Little is known about using DP to measure the sedative effect of isolated propofol administration. METHODS: We conducted a cross-sectional study of 19 adults undergoing moderate sedation with propofol during which we measured pupillary changes using DP. RESULTS: Maximum and minimum pupillary diameters decreased significantly with propofol (mean change from baseline to procedural termination -1.24 mm, standard error [SE] 0.25 and -0.79 mm, SE 0.13, respectively; P<=0.001 for both). Mean constriction velocity decreased by 0.84 mm/s between baseline and procedural termination (P=0.001). Pupillary latency increased significantly between baseline and induction (mean change 0.016 seconds, SE 0.007; P=0.04) but was not significantly different at other time points. CONCLUSION: We speculate that DP may be a useful tool to monitor propofol sedation. PMID- 29026359 TI - Innovation and Education Through Simulation at Ochsner. PMID- 29026358 TI - Medicine in Society Health Project: Five Students' Journey to a Resource-Limited Clinic in the Haitian Countryside. AB - BACKGROUND: Five medical students traveled with 4 doctors and a medical photographer to Mayaya, La Victoire, Haiti, as part of a Medicine in Society rotation to provide medical care to the indigenous population. METHODS: Preparation for the trip involved special study in identifying microbes and using blood analysis equipment; work in a clinic for underserved people in the New Orleans, LA, area; background reading; Haitian dialect classes; and development of ideas for streamlining clinic operations. RESULTS: During the week in country, the healthcare team saw 472 patients and made more than 1,100 diagnoses. A shortage in almost all needed medications was one of the biggest challenges. CONCLUSION: Each aspect of the pretrip training was useful but did not prepare the students for the conditions in the poorest country in the Western Hemisphere. Overall, the clinic functioned smoothly, and each student had an important role to play each day. Medicine in Society-Haiti gave the medical students a completely new perspective on medicine as they experienced firsthand the ethical dilemma of resource scarcity. PMID- 29026360 TI - Effects of Tobacco on Health and Disease: Three Decades of the Alton Ochsner Award. PMID- 29026362 TI - Inflammatory Myofibroblastic Tumor of the Breast Mimicking Malignancy in an Elderly Male. AB - BACKGROUND: Inflammatory myofibroblastic tumor (IMT) is a rare, distinctive lesion composed of a proliferation of myofibroblastic spindle cells accompanied by an inflammatory infiltrate. It was first described in the lung, but its occurrence at various extrapulmonary sites has also been reported. The literature mentions only a handful of cases of IMT in the breast and only 1 case in the male breast. We report the second case of IMT in the male breast. CASE REPORT: A 60 year-old male presented with a large, lobulated lump in the left breast that had progressively increased in size during the past year. The lump measured 15 * 10 cm. Ultrasonography revealed a solid mass lesion with regular borders in the subcutaneous plane of the left anterior chest wall. Fine-needle aspiration cytology showed a cellular mesenchymal tumor. Macroscopically, the nodule was firm, circumscribed, and yellow. On microscopic examination, the tumor was composed of bland spindle cells arranged in sheets and short fascicles along with a rich inflammatory infiltrate comprising predominantly plasma cells, admixed with lymphocytes, neutrophils, and eosinophils. On immunohistochemistry, the tumor cells were positive for vimentin, focally positive for smooth muscle antigen, and negative for anaplastic lymphoma kinase, CD34, S100, beta-catenin, and cytokeratin. Thus, a final diagnosis of IMT was rendered. CONCLUSION: IMT is a rare entity with intermediate clinical behavior. Knowledge of this entity and its recurrence and metastatic potential is of paramount significance to guide appropriate treatment and follow-up. PMID- 29026361 TI - Improving Patient Safety Communication in Residency Programs by Incorporating Patient Safety Discussions Into Rounds. AB - BACKGROUND: Engaging residents in patient safety and quality improvement initiatives is sometimes difficult. The primary goal of the current study was to develop a standardized learning experience designed to facilitate patient safety discussions during rounds. METHODS: Residents who were on inpatient rotations during a 2-month period in 2014 were exposed to patient safety discussions on rounds. Residents who were not on inpatient rotations served as a control group. Faculty received weekly text reminders with 3 questions designed to engage residents in patient safety discussions. Before and after the intervention, residents were asked to complete a modified Agency for Healthcare Research and Quality Hospital Survey on Patient Safety Culture. Faculty members were asked to complete a brief survey designed by the study investigators. RESULTS: Of the 160 residents who participated in the study, 49 responded to both the preintervention and postintervention surveys (31%). Residents who participated in patient safety discussions during rounds reported higher frequencies of safety events reported compared to the control group (P<0.05). Both groups of residents reported better communication (P<0.01) and an increased number of safety events reported (P<0.01) at the end of the intervention. Twenty-two faculty were surveyed, and 19 responded (86%). Most faculty felt incorporating patient safety discussions on rounds was constructive and that the residents were responsive. Few faculty members felt the patient safety discussions were burdensome. CONCLUSION: Using weekly text reminders with 3 prompts to incorporate patient safety discussions into rounds was well received by faculty and residents and had an impact on communication and error reporting. PMID- 29026363 TI - Highly Accelerated Onset of Hydroxychloroquine Macular Retinopathy. AB - BACKGROUND: Hydroxychloroquine (HCQ, Plaquenil) is often prescribed in lieu of other sulfate antimalarials to treat rheumatologic diseases because of its pharmacologic efficacy and few reported side effects. However, a known potential side effect of HCQ is retinal toxicity. CASE REPORT: A 61-year-old black female presented for screening of ophthalmic disease 2 months after initiation of HCQ for the treatment of polyarthralgia with a positive rheumatoid factor. At the time of the examination, she had taken a cumulative total of 19.8 g of HCQ and was found to have bilateral bull's-eye retinopathy. The patient had no known risk factors for HCQ toxicity. HCQ was discontinued, and the patient was prescribed ibuprofen for her polyarthralgia symptoms. The ophthalmic effects of HCQ toxicity were permanent. CONCLUSION: Known major risk factors for HCQ retinal toxicity include drug loads >300 mg/day (5 mg/kg/day), use for >5 years, a cumulative dose >1,000 g, underlying retinal disease or retinopathy, tamoxifen use, and renal disease. Despite not having any of these risk factors and having a reduced drug load during the treatment period, our patient developed the signs and symptoms of HCQ toxicity. This case suggests underlying mechanisms for HCQ toxicity other than those previously reported and a need for additional screening tests to prevent HCQ toxicity. PMID- 29026364 TI - Recurrent Pneumothoraces in a Patient With Pulmonary Benign Metastasizing Leiomyoma. AB - BACKGROUND: Pulmonary benign metastasizing leiomyoma (BML) is a rare disease with a malignant characteristic of spread from the uterus. Most cases are asymptomatic, and only 1% are associated with pneumothorax. CASE REPORT: We present the case of a 42-year-old female with recurrent pneumothoraces leading to an incidental finding of diffuse bilateral pulmonary nodules. The diagnosis of BML was based on the patient's history of uterine leiomyomata and confirmed by a biopsy showing benign smooth muscle staining for desmin and vimentin. CONCLUSION: BML should be considered in women with a history of leiomyomata who develop pneumothoraces resulting from peripheral pulmonary nodules. A standardized treatment regimen has yet to be established, and therapy plans require a multidisciplinary approach, involving gynecology, cardiothoracic surgery, and pulmonology. PMID- 29026365 TI - Incidental Finding of Bronchopulmonary Sequestration in a 64-Year-Old Female. AB - BACKGROUND: Bronchopulmonary sequestration is a congenital abnormality of the primitive foregut. In adults, the typical age at presentation is 20-25 years. CASE REPORT: A 64-year-old female was referred for evaluation of an 8 * 6-cm right lower lobe cystic lesion. Her medical history was significant for recurrent right lower lobe pneumonia requiring multiple hospitalizations. Her physical examination was significant for crackles at the right lung base. Computed tomography (CT) of the chest with contrast showed cystic changes with thickened septation of the medial segment of the right lower lobe lacking distinct visceral pleura and with arterial supply from the anomalous branch of the thoracic aorta arising near the celiac trunk. Pulmonary angiography confirmed the diagnosis of intralobar pulmonary sequestration. The patient underwent celiac endovascular coil embolization of the anomalous artery to lessen the risk of hemorrhage prior to video-assisted thoracoscopic surgery (VATS) resection of the right lower lobe. She recovered well and was discharged home 1 week after VATS lobectomy. Follow-up CT of the chest 2 months later showed normal postsurgical changes related to right lower lobe lobectomy. The patient remained asymptomatic and resumed her daily activities. CONCLUSION: Pulmonary sequestration can present with recurrent pneumonia in late adulthood. Physicians must review any previous imaging studies of the chest to identify the structural abnormality and be cognizant of differential diagnoses such as infected cystic bronchiectasis, bronchogenic cyst, congenital diaphragmatic hernia, or cystic adenomatoid malformation that can occur in conjunction with bronchopulmonary sequestration. Pulmonary angiogram is the gold standard to confirm the diagnosis of bronchopulmonary sequestration. Surgical resection is the standard of care. PMID- 29026366 TI - Trigeminal Trophic Syndrome Associated With the Use of Synthetic Marijuana. AB - BACKGROUND: Trigeminal trophic syndrome (TTS) is an uncommon disorder of the trigeminal nerve tract and trigeminal brainstem nucleus. The syndrome is characterized by a triad of unilateral crescentic ulcers with anesthesia and paresthesias of the involved trigeminal dermatomes. CASE REPORT: A 24-year-old right-handed black female presented to our emergency department with a 4-week history of rapidly progressive painless desquamation/denudation of skin over her right face and scalp. Four weeks prior, she had been admitted to another institution for seizures and was diagnosed with seizures provoked by synthetic marijuana use. She was afebrile during her initial presentation at our institution. Dermatologic examination revealed denudation of the epidermis and partial dermis over the right frontal, parietal, and temporal scalp with associated alopecia. CONCLUSION: To our knowledge, the association of disorders of the trigeminal nerve pathway, including TTS, with the use of synthetic marijuana has not been previously reported. The long-term neurologic effects of synthetic marijuana are difficult to predict, and the pathologic underpinnings of TTS are largely unknown. Further studies dedicated to exploring the underlying molecular and cellular mechanisms may translate into effective therapies and approaches to halt and reverse the process and prevent tissue destruction and cosmetic disfigurement. PMID- 29026367 TI - Mitochondrial Encephalomyopathy With Lactic Acidosis and Stroke-Like Episodes MELAS Syndrome. AB - BACKGROUND: Mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) syndrome is a rare inherited disorder that results in waxing and waning nervous system and muscle dysfunction. MELAS syndrome may overlap with other neurologic disorders but shows distinctive imaging features. CASE REPORT: We present the case of a 28-year-old female with atypical stroke-like symptoms, a strong family history of stroke-like symptoms, and a relapsing-remitting course for several years. We discuss the imaging features distinctive to the case, the mechanism of the disease, typical presentation, imaging diagnosis, and disease management. CONCLUSION: This case is a classic example of the relapse-remitting MELAS syndrome progression with episodic clinical flares and fluctuating patterns of stroke-like lesions on imaging. MELAS is an important diagnostic consideration when neuroimaging reveals a pattern of disappearing and relapsing cortical brain lesions that may occur in different areas of the brain and are not necessarily limited to discrete vascular territories. Future studies should investigate disease mechanisms at the cellular level and the value of advanced magnetic resonance imaging techniques for a targeted approach to therapy. PMID- 29026369 TI - Corrigendum: Ethnopharmacological Approaches for Therapy of Jaundice: Part II. Highly Used Plant Species from Acanthaceae, Euphorbiaceae, Asteraceae, Combretaceae, and Fabaceae Families. AB - [This corrects the article on p. 519 in vol. 8, PMID: 28848436.]. PMID- 29026368 TI - Serum protein pattern associated with organ damage and lupus nephritis in systemic lupus erythematosus revealed by PEA immunoassay. AB - BACKGROUND: Systemic lupus erythematosus (SLE) is a remarkably heterogeneous autoimmune disease. Despite tremendous efforts, our knowledge of serum protein patterns in severe SLE phenotypes is still limited. We investigated the serum protein pattern of SLE, with special emphasis on irreversible organ damage and active lupus nephritis (LN) as assessed by renal Systemic Lupus Erythematosus Disease Activity Index. METHODS: We used proximity extension immunoassay (PEA, Proseek Multiplex, Olink) to assess the serum levels of ninety-two inflammation related proteins in Czech patients with SLE (n = 75) and age-matched healthy control subjects (n = 23). Subgroup analysis was carried out on the basis of organ damage (with/without, 42/33) and biopsy-proven LN (with/without, 27/48; active LN, n = 13; inactive LN, n = 14). RESULTS: Of thirty deregulated proteins between SLE and the healthy controls (Pcorr < 0.05), the top upregulated proteins in SLE were sirtuin 2, interleukin 18 (IL18), and caspase 8 (Pcorr < 0.0006). Of these, sirtuin 2 and caspase 8 had not yet been reported with SLE. Elevated levels of IL8, CCL2/MCP1, CCL11, and MMP10 (Pcorr < 0.05) were detected in patients with organ damage for which the serum levels of CCL11 and MMP10 were particularly informative in organ damage prediction. Comparing patients based on LN, elevated levels of CSF1, sIL15RA, sCD40, sCX3CL1, caspase 8, sIL18R1, bNGF, and GDNF (Pcorr < 0.05) were detected in active LN. Except GDNF, all LN associated markers showed usefulness in prediction of active renal disease. CONCLUSIONS: This highly sensitive PEA analysis identified the serum pattern of SLE, organ damage, and active LN, with many novel candidate proteins detected. Their exact role and suitability as biomarkers in SLE deserve further investigation. PMID- 29026370 TI - Preliminary molecular characterization of a proinflammatory and nociceptive molecule from the Echinometra lucunter spines extracts. AB - BACKGROUND: Sea urchins are animals commonly found on the Brazilian shoreline, being Echinometra lucunter the most abundant species. Accidents caused by E. lucunter have been reported as one of the most frequent in Brazil, and are characterized by intense pain and inflammation, consequence of spine puncture in the skin. In order to characterize such toxic effects, we isolated one molecule that caused inflammatory and nociceptive effects. METHODS: E. lucunter specimens were collected without gender distinction. Spines were removed and molecules were extracted, fractionated by RP-HPLC and assayed for inflammatory and nociceptive activity, in a biological-driven fractionation way, until the obtainment of one active molecule and its subsequent analysis by mass spectrometry (MS and MS/MS). For inflammation, intravital microscopy was performed on the mouse cremaster muscle, in order to evaluate rolled, adherent and migrating leukocytes. Paw edema was also evaluated. For the nociceptive activity, the paw pressure test was performed in rats. RESULTS: One molecule could be isolated and related to the inflammatory and nociceptive activity. Regarding inflammation, increase in adherent and migrating cells was observed in the cremaster muscle after the administration of the molecule. Corroborating the inflammatory response, paw edema was also observed, although only in 20% of controls and 20 min after injection. Additionally, this molecule was able to decrease significantly the pain threshold, characterizing hyperalgesia. This molecule was analyzed by mass spectrometry, and according to the exact molecular mass, isotopic distribution and fragmentation profile, it was possible to propose the molecular formula C29H48N3O10. CONCLUSIONS: One isolated molecule from the spine extract of E. lucunter is able to elicit inflammation and hypernociception in animal models, which is in agreement with the effects observed in sea urchin accidents. PMID- 29026371 TI - Proportion and factors associated with low fifth minute Apgar score among singleton newborn babies in Gondar University referral hospital; North West Ethiopia. AB - BACK GROUND: New born babies with low Apgar scores are at an increased risk of perinatal morbidity and mortality. OBJECTIVE: To assess proportion and factors associated with low 5th minute Apgar Apgar score among singleton newborn babies in Gondar University referral hospital; North West Ethiopia. METHODS: A cross sectional study was conducted on singleton 261 live births from March - May, 2013. Data was collected from mother/newborn index using a structured and pre tested questionnaire. It was then cleaned, coded and entered using EPI INFO version 3.4.3, then analyzed with IBM SPSS statistics versions 20.0. Logistic regression was used to identify significant variables with low 5th minute Apgar score. RESULT: The proportion of low 5th minute Apgar score in this study was 13.8%. Factors that were significantly associated with low 5th minute Apgar score were: non-vertex fetal presentation, prolonged labor, presence of meconium stained liquor, induced/augmented labor and low birth weight. CONCLUSION: Mainly obstetric factors contribute to low Apgar score. Improving labor management through implementing regular use of partograph, 1:1 midwife-client ratio and advanced electronic fetal monitoring technology is recommended. PMID- 29026372 TI - Delivery practices, hygiene, birth attendance and neonatal infections in Karamoja, Uganda: a community-based study. AB - BACKGROUND: Drawing attention to home birth conditions and subsequent neonatal infections is a key starting point to reducing neonatal morbidity which are a main cause of mortality in sub-Saharan Africa. OBJECTIVES: To determine the proportion of respiratory, ophthalmic, and diarrhoeal infections in neonates; the proportion of mothers of neonates, following clean delivery practices; and to explore existing community practices during delivery and the neonatal period. METHODS: A descriptive, cross-sectional, exploratory study, including 10 questionnaires and five Key-Informant interviews, in rural Karamoja, Uganda. RESULTS: Post-delivery razor blade and string use was 90%, but clean delivery surface use only 30%, while 90% obtained bathing water for neonates from boreholes. No mothers washed hands after latrine-related activities compared with 83% for food-related activities. None delivered in health centres or with skilled birth attendants. Respiratory infections occurred in eight neonates, compared to two ophthalmic infections, and no diarrhoea. CONCLUSION: Use of clean delivery surfaces needs to be improved as well as washing after latrine-related activities. Diarrhoea was far less common than expected. Since rural Mother Infant pairs spend the majority of their post-delivery time around the homestead, hygiene impacts neonatal infections to a large degree, possibly even more so than delivery practices. PMID- 29026373 TI - How weight during pregnancy influences the association between pre-pregnancy body mass index and types of delivery and birth: a comparison of urban and rural areas. AB - BACKGROUND: Women in study areas suffered from the problems of caesarean delivery (CD), low birth weight (LBW), and macrosomia. OBJECTIVE: To investigate how gestational weight gain (GWG) influences the effect of the pre-pregnancy body mass index (BMI) on the risks of CD, LBW, and macrosomia in urban and rural areas in a city of Iran. METHODS: We used 767 and 612 eligible subjects from the public health care centers in urban and rural areas respectively. RESULTS: The risk of CD increased from 74% to 2.62-fold in urban and from 62% to 2.15-fold in rural areas, and the risk of macrosomia increased from 58% to 2.35-fold in urban and from 47% to 96% in rural areas, among obese women compared to normal weight women who gained above median GWG. The risk of LBW increased from 38% to 92% in urban and from 49% to 97% in rural areas among lean women compared to normal weight women who gained below median GWG. CONCLUSION: These findings strongly support the need to reform adequate pre-pregnancy weight and GWG against the risks of CD and macrosomia among overweight and obese women, and against the risk of LBW among lean women in both areas. PMID- 29026375 TI - Sexual risk behavior among HIV-positive persons in Jamaica. AB - BACKGROUND: HIV/AIDS remains a global public health challenge, especially in sub Saharan Africa and the Caribbean. Sexual risk behaviors among HIV-positive persons place their partners at risk for HIV transmission and other sexually transmitted infections. Stopping transmission acts among HIV-positive people is crucial in reversing HIV incidence. OBJECTIVE: This study aimed to assess the prevalence and predictors of sexual risk behaviors among HIV-positive individuals in clinical care in Northwestern Jamaica. METHODS: A cross-sectional survey of 118 (33 males and 85 females) HIV-positive individuals was used to assess demographic and health characteristics, HIV/AIDS knowledge, attitudes, and beliefs and sexual risk behaviors. RESULTS: About 12% of the study population stated that they had unprotected anal or vaginal sex without disclosing their HIV status. Participants who agreed that condoms reduce the risk of HIV transmission were 13.1 times more likely to use condoms during their last sexual encounters(95% CI: 2.1-79.0) than those who disagreed. About 75% of participants reported using a condom every time they had sexual intercourse in the past year, while 25% used condoms irregularly. Participants who had unprotected anal or vaginal sex without disclosing their status were less likely to have used condoms during the last sexual encounter (OR=0.1; 95% CI: 0.02-0.5). CONCLUSION: The prevalence of unsafe sex remains high among sexually active people living with HIV/AIDS in Jamaica. Study participants who engaged in unprotected sex without disclosing their HIV-positive status potentially place their partners at risk for HIV transmission and other sexually transmitted infections. The study findings highlight the need to promote safe sexual behaviors and a positive social environment for people living with HIV/AIDS in Jamaica. PMID- 29026376 TI - Diversities in timing of sexual debut among Nigerian youths aged 15-24 years: parametric and non-parametric survival analysis approach. AB - OBJECTIVE: This study examined gender, generational, cultural and social diversities in timing of sexual debut among Nigerian youths and determined factors influencing the timings. METHODS: We extracted data of respondents aged 15-24 years from 2012 Nigeria nationally representative data. The outcome of interest was time at sexual debut while predictors included residence, marital status, zones, education, religion, age at first marriage. Data was censored, cox proportional hazard and generalized gamma models were used to model age at sexual debut with p=0.05. RESULTS: The median survival time of sexual debut was 19 years, female youths were twice as likely to begin sexual activities than their male counterparts, HR=1.99, 1.87-2.11 while uneducated youths were more than twice likely to have earlier sexual debut than those with higher education, HR=2.19, 1.95-2.25. Likelihood of having had sexual debut was about 30% higher among those aged 20-24 years than those aged 15-19 years, HR=1.27, 1.19-1.36. CONCLUSION: Females from poor households mostly in rural areas with no education and who married early in life were more likely to have earlier sexual debut. Both teenagers and young adults are on different trajectories of sexual debut but both urgently need sexual and reproductive health education to delay sexual debut. PMID- 29026374 TI - Geophagy as risk behaviour for gastrointestinal nematode infections among pregnant women attending antenatal clinics in a humid tropical zone of Nigeria. AB - BACKGROUND: Geophagy is wide spread among pregnant women in Ebonyi State, Nigeria. OBJECTIVE: The aim of this study was to assess intestinal nematode infections among geophagous pregnant women in Southern Ebonyi State, Nigeria. METHODS: Pregnant women were aged 17-45 years at gestational ages of >= 14 to 24 weeks on hospital enrolment were sampled. Data on geophagy was collected using structured questionnaire. Gastrointestinal nematode status of the participants was determined by stool analyses. Soil types ingested were examined for intestinal nematode ova / larvae. RESULTS: The prevalence of geophagy (46.4%) was associated with socio-demographic characteristics. Ascaris lumbricoides and hookworm were associated with geophagy while Trichuris trichiura and Strongyloides stercoralis had no association. Prevalence of A. lumbricoides, T. trichiura and S. stercoralis differed significantly (p<0.05) between geophagous and non-geophagous women. The soil types consumed had eggs / larvae of A. lumbricoides and T. trichiura. Geophagy is a risk behaviour directly associated with A. lumbricoides, hookworm, T. trichiura, and to a lesser extent S. stercoralis infection among pregnant women. CONCLUSION: Sensitization and mass education of pregnant women on the dangers of geophagy is needed. Furthermore, deworming of pregnant women should be integrated into the healthcare delivery system of the State. PMID- 29026377 TI - Developmental screening: predictors of follow-up adherence in primary health care. AB - BACKGROUND: The importance of early identification for infants and young children with developmental delays is well established. Poor follow-up on referrals, however, undermines the effectiveness of early intervention programmes. OBJECTIVES: To identify factors, including text message reminders, that influence follow-up adherence for early intervention after developmental screening in primary health care. A secondary objective surveyed reasons for follow-up default. METHODS: The PEDS tools were used to screen 247 high-risk children. A risk assessment questionnaire was completed with caregivers whose children were referred for speech-language and/or occupational therapy (n=106, 43%). A quasi experimental correlational study was employed to identify risk factors for defaulting on appointments. A thematic analysis of telephonic interviews was also employed to determine reasons for follow-up defaults. RESULTS: Follow-up adherence was 17%. Participants who were never married, divorced or widowed were 2.88 times more likely to attend a follow-up appointment than those who were married or living together (95%, CI 0.97-8.63). Text message reminders did not improve follow-up. More than half (58%) of participants who defaulted on appontments could be reached for telephonic interviews. Interviews showed that 87% of participants were unconcerned about their child's development. Other reasons for defaulting were employment, logistical issues, other responsibilities and forgetfulness. CONCLUSION: Follow-up adherence for early intervention services following a positive primary health care screen was poor. Increased awareness and education regarding the importance of development for educational success is needed. PMID- 29026378 TI - Contextual determinants of adolescent mortality in South Africa. AB - OBJECTIVES: South Africa has a large adolescent population (approximately 20% of the total population). The survival and development of these individuals are a priority among parents and the government. In an effort to better understand the factors contributing to adolescent mortality in South Africa, this study examined the effect of household and community factors on adolescent death. METHODS: The study used data from Census 2001. Multilevel modelling was used to study the impact of community and household factors on adolescent mortality. A multivariate binary logistic 2-level model was developed. Odds ratios were produced and, statistically significant values (p<0.05) were discussed. There were 41,261 reported adolescent deaths from census data. RESULTS: This study found that having a few household assets, six or more people living in a residence, and high racial diversity is associated with increased odds of adolescent mortality in South Africa in 2001. CONCLUSIONS: Socio-economic status of the household and racial diversity within communities is likely to increase adolescent mortality in South Africa. However, there is need to examine the role of other community characteristics, such as number of schools, health facilities and employment opportunities in order to create a holistic profile of the contextual determinants of adolescent mortality in the country. PMID- 29026379 TI - Distribution of symptoms of post-stroke depression in relation to some characteristics of the vulnerable patients in socio-cultural context. AB - OBJECTIVE: To determine the distribution of symptoms of post-stroke depression (PSD) in relation to some predisposing factors in an African population. RELEVANCE: Environment is a key determinant of behavior, and varied socio cultural contexts must have implications for modifiable characteristics (age, duration of the stroke, marital status, type of employment, gender, the location of cerebral lesion and complications) of individuals vulnerable to PSD, which may be targeted to enhance recovery. METHOD: This was a cross-sectional observational study of 50 (22 females and 28 males) stroke survivors (mean age=54.76+/-8.79 years), at the physiotherapy department, the University of Nigeria teaching hospital, Enugu, selected using convenience sampling technique. Data were collected using Becks Depression Inventory and analyzed using Z-score, Chi-square test and univariate logistic regression, at p<0.05. RESULTS: PSD was more prevalent in females (45.45%); young(100%); middle-age(60%) adults(27-36/47-56 years respectively); living with spouse (45%); left cerebral lesions (40.74%); complications(45%); cold case >3 years(47.05%); self-employed and unemployed (66.67%), respectively. Age was significantly associated with depression (chi2 =4.92,df=1,p=0.03), and was related to the risk of PSD (3.7[1.1-12.0], p=0.03, phi +0.31, phi2=0.1). CONCLUSION: Age could be a risk factor for PSD, which was more prevalent in the elderly than young/middle-age adults, female gender, left cerebral lesion, complications, cold case; those living with a spouse, self employed and unemployed. PMID- 29026380 TI - Utilization of physiotherapy in the continuum of stroke care at a tertiary hospital in Ibadan, Nigeria. AB - OBJECTIVES: To investigate the pattern of referral for and utilisation of physiotherapy in the continuum of stroke care at a tertiary hospital in Ibadan, Nigeria. METHODS: Referral notes and medical records of patients admitted in the University College Hospital, Ibadan with a clinical diagnosis of stroke between January, 2009 and December, 2013 were retrospectively reviewed. Information on age, sex, type of stroke, length of hospital stay, referral for physiotherapy and utilisation of physiotherapy were retrieved. Data were summarised using descriptive statistics and analysed using Chi-square test. RESULTS: A total of 783 patients with stroke were admitted in the hospital during the period under study. The in-patient mortality rate was 37.2%. The mean Length of Hospital Stay (LoHS) was 16.17+/-12.34 days. Referral rate for physiotherapy was high (75.8%) and the mean time from admission to referral for physiotherapy was three days. Majority of patients referred utilised physiotherapy (63.4%) and mean number of physiotherapy sessions received during in-patient care was 8.69+/-6.45. There was a significant association between LoHS and utilisation of in-patientphysiotherapy (p=0.02). CONCLUSION: The referral rate of stroke patients for physiotherapy was relatively high. Utilisation of in-patient physiotherapy reduced length of hospital stay among patients with stroke. Utilisation of out-patient physiotherapy was low. Strategies to enhance out-patient utilisation should be explored. PMID- 29026381 TI - A cross-sectional analysis of the association between age and gender and prescribed minimum benefit chronic disease list conditions among South Africans with concomitant hypertension, diabetes and dyslipidaemia. AB - BACKGROUND: Prescribed Minimum Benefit Chronic Disease List (PMB CDL) conditions are a regulated list of conditions most common to South Africa. OBJECTIVES: To investigate the prevalence and association between PMB CDL conditions and age and gender among patients with concomitant hypertension, diabetes and dyslipidaemia. METHODS: The study population consisted of patients (n = 17 866) with a prescription containing at least one co-prescribed antilipemics, antihypertensive and antidiabetic (identified using the MIMS Desk Reference). ICD-10 codes on claims for PMB CDL conditions were counted. RESULTS: 39.5% of patients had a PMB CDL condition. Women had higher odds for hypothyroidism (OR 6.30, 95% CI; 5.52, 7.19, p < 0.001) and lower odds for coronary artery disease (CAD) (OR 0.63, 95% CI; 0.55, 0.72, p < 0.001) than men. In combination with hypothyroidism the odds for CAD were reversed and strongly increased; 3.54 (95% CI; 2.38, 5.25, p < 0.001). The odds for females having cardiac failure (CF) was insignificant and low (OR 0.87, 95% CI; 0.75, 1.01, p = 0.063); however combined with hypothyroidism, the odds increased to 5.35 (95% CI; 3.52, 8.13, p < 0.001). CONCLUSION: Hypothyroidism was an important discriminating factor for co morbidity in women with concomitant hypertension, diabetes and dyslipidaemia, in particular with cardiovascular disease. PMID- 29026382 TI - Role of plasma adiponectin /C-reactive protein ratio in obesity and type 2 diabetes among African Americans. AB - BACKGROUND: Obesity is a modifiable risk factor for hypertension and T2D. Objective(s): We examined relations between fasting plasma adiponectin (ADIP), C reactive protein (CRP) concentrations and markers of T2D in African Americans (AA). METHODS: Fasting plasma ADIP, CRP, Insulin (IN), HOMA-IR, lipid profiles, body fat percent (%BF), waist circumference (WC), body mass index (BMI) and blood pressure measures were determined in AA women (W: n=77) and men (M: n=34). Participants were classified into: 1) Normal fasting glucose (FG) and Normal %BF; 2) Normal FG and High %BF; and 3) High FG. RESULTS: Compared to men, women had significantly higher mean ADIP (W: 31.4+/-2.9 vs. M: 18.0+/-4.4 ng/L), CRP (W: 3.2+/-0.3 vs. M: 2.0+/-0.5 mg/L), %BF (W: 41.2+/-0.9 vs. M: 27.2+/-1.3), and BMI (W: 32.3+/-0.7 vs. M: 29.2+/-1.1 kg/m2). Women with normal FG and %BF had significantly higher ADIP (64.0+/-6.0) and lower CRP (1.3+/-0.6) concentrations than normal FG/ high %BF (ADIP: 37.0+/-5.0 and CRP: 3.1 +/-0.5) and high FG (ADIP: 15.1+/-4.1 and CRP: 4.0 +/- 0.5) groups. Women with high ADIP to CRP ratio had favorable metabolic and anthropometric profiles. CONCLUSION: Low ADIP and high CRP are associated with excessive %BF and FG in AA women. ADIP/CRP, may be useful for detecting metabolic dysregulation. PMID- 29026383 TI - Association between ALDH2 Glu504Lys polymorphism and colorectal cancer risk: a meta-analysis. AB - BACKGROUND: The findings from studies on the relationship between aldehyde dehydrogenases(ALDH) gene Glu504Lys polymorphism and colorectal cancer(CRC) were inconsistent. OBJECTIVES: The aim of this meta-analysis was to assess ALDH gene Glu504Lys polymorphism and CRC risk. METHODS: All of the relevant studies were identified from PubMed and Embase database. Statistical analyses were conducted with STATA 12.0 software. Odds ratio (OR) with 95% confidence interval (CI) values were applied to evaluate the strength of the association. Nine studies with 2779 cases and 4533 controls were included. RESULTS: No significant variation in CRC risk was detected in any of the genetic models overall. To explore the sources of heterogeneity,we performed further sub-group analyses by ethnicity and quality assessment of these studies. In the sub-group analysis by race, significant associations between ALDH gene Glu504Lys polymorphism and CRC risk were found in China(Glu/Lys vs Glu/Glu: OR = 0.70, 95%CI = 0.57-0.85; the dominant model: OR =0.69, 95%CI =0.48-0.98) and Japan(Lys/Lys vs Glu/Glu:OR =0.72, 95%CI =0.55-0.95). CONCLUSION: This meta-analysis suggests that the ALDH2 Glu504Lys polymorphism may be associated with susceptibility to CRC. Furthermore, large and well-designed studies are needed to confirm these conclusions. PMID- 29026384 TI - Clinical and cranial computed tomography scan findings in adults following road traffic accidents in Kampala, Uganda. AB - BACKGROUND: Globally, road traffic accidents are a major cause of death and disability. The developing countries bear a disproportionately large share of the RTAs which account for about 85% of the deaths. Most of these RTAs result in head injury, which globally, most scholars and medical practitioners consider a significant economic, social and medical problem. In Mulago National referral hospital, RTA is the leading cause of surgical admission. OBJECTIVE: To describe the cranial computed tomography (CT) scan findings in adults following RTA in Mulago hospital. METHODS: Using CT, detailed analysis of 178 adult patients with head injury following RTA was performed. Data was analyzed using SPSS version 16 and presented in tables and graphs. Data recorded included socio-demographic characteristics, clinical and CT variables. RESULTS: Seventy seven percent of the respondents were between 18-39 years. 52.6% of patients had open head injury. Headache was the most common clinical variable followed by dizziness and aphasia. The most common CT characteristic was extra cerebral haemorrhage followed by brain oedema and raised Intra-cranial pressure (ICP). Intra-cerebral haemorrhage was commonest in the frontal lobe followed by parietal lobe. CONCLUSION: Public health interventions like advocacy and education of the population on safe and responsible road usage should be emphasized to reduce on RTAs. PMID- 29026385 TI - A randomized controlled trial to assess the effect of a ketamine infusion on tourniquet hypertension during general anaesthesia in patients undergoing upper and lower limb surgery. AB - BACKGROUND: Tourniquet hypertension arising from tourniquet inflation remains a primary concern to the anaesthetist. One drug commonly used to manage tourniquet hypertension is ketamine. No studies have examined the effect of ketamine on tourniquet hypertension for a period of more than one hour or an infusion of the same. OBJECTIVE: To compare the effect of an intravenous infusion of ketamine versus placebo on tourniquet induced hypertension in patients undergoing upper and lower limb surgery under general anaesthesia. METHODS: Forty six adult patients scheduled for upper and lower limb surgery under general anaesthesia were randomized into two equal groups. The ketamine group received an intravenous bolus of 0.1mg/kg of ketamine followed by an infusion of 2ug/kg/min. The saline group received an intravenous bolus of physiological saline followed by an infusion of saline. All the patients were reviewed post-operatively. Data of the baseline characteristics, haemodynamic changes, post-tourniquet pain and side effects were collected. If post-tourniquet pain was present post-operatively, a visual analogue scale (VAS) was used to assess its severity. RESULTS: 46 patients successfully completed the trial. There were no significant differences between the groups for baseline patient demographics. The incidence of tourniquet hypertension was higher in the saline group (26.1%) compared with ketamine group (4.6%) with a 95% confidence interval. The difference was shown to be statistically significant ('P'<0.05). There was an increase in systolic blood pressure after 60 minutes of tourniquet inflation in the saline group but the difference was not statistically significant('P'>0.866). There were no significant differences between the groups as regards diastolic blood pressure and heart rate. VAS scores did not differ between the two groups. Statistically, there was no difference found between the two groups. Side effects were minimal in the ketamine group whilst in the saline group, nausea and vomiting were predominant but were also not statistically significant. CONCLUSION: Based on the results of this study, there was a difference in the proportion of tourniquet hypertension between the ketamine and saline groups for patients undergoing upper and lower limb orthopaedic surgery under general anaesthesia. PMID- 29026386 TI - Effect of posture on swallowing. AB - BACKGROUND: Swallowing is a systematic process. Any structural, physiological or neurological disturbance in this process may cause dysphagia. Although there are studies that report head/neck movements during mastication, there are fewer studies that show the effect of different head/neck postures on difficulty while swallowing. OBJECTIVES: To observe the effect of different body postures on the self-perceived difficulty while swallowing in normal healthy subjects. METHODS: Participants were asked to swallow 25 ml of water in one go while sitting upright, sitting with head/neck flexed, head/neck extended and lying supine. Following this, they had to rate their self-perceived difficulty while swallowing on a scale of 0-10, 0 being most easy and 10 being most difficult. RESULTS: 186 subjects with mean age 32.7 SD 9.04 participated in this study. It was found to be least difficult to swallow when subjects were asked to swallow in upright sitting position. Statistically significant differences were found between sitting upright, sitting with head/neck flexed, head/neck extended and lying supine. CONCLUSION: Postural modification may help in rehabilitation of patients with dysphagia by affecting bolus flow to improve speed and safety of swallowing by closure of airways to prevent aspiration. PMID- 29026387 TI - The effect of a preanaesthesia clinic consultation on adult patient anxiety at a tertiary hospital in Kenya: a cohort study. AB - BACKGROUND: Preoperative anxiety is a common perioperative complication seen in approximately 11-80% of adults undergoing surgery. One of the goals of the preanaesthesia clinic is to allay anxiety. A preanaesthesia clinic evaluation has been shown to reduce anxiety however current studies on anxiety and the preanaesthesia clinic have not quantified this reduction. OBJECTIVE: To determine the reduction in anxiety in patients evaluated in the clinic versus those evaluated in the ward. METHODS: Fifty one adult patients with 28 patients in anaesthesia clinic (AC) group and 23 in the ward (W) group were sequentially recruited from both the surgical, gynaecology and antenatal outpatient clinics and the wards. The patient's State Trait Anxiety Index (STAI) was taken once the patient was booked for theatre. The patients then had a preanaesthesia evaluation either in the preanaesthesia outpatient clinic (PAC) or in the wards. Another STAI score was taken in the preoperative area in theatre on the day of surgery. The difference in the change of STAI scores in both groups was then analysed. RESULTS: Fifty one adult patients were recruited with 28 in the AC group and 23 in the W group. The majority of patients were female (n=38). Statistically significant difference was seen in the reduction of the anxiety scores between the clinic group 2.143 (C.I=1.384-2.902) and ward group 0.74(C.I=0.17-1.31) with a p value=0.0051.There was also significant difference in reduction in anxiety scores within ward group in the patients with no prior anaesthetic experience having a greater reduction than those with prior anaesthetic experience. There were no other significant differences between the two groups. CONCLUSION: Patients evaluated in the anaesthesia clinic had a greater reduction in their anxiety but it was not as much as hypothesised which may be due to the multi factorial nature of preoperative anxiety. A larger multicenter study is recommended to increase generalizability to the population. PMID- 29026388 TI - Cytotoxicity testing of aqueous extract of bitter leaf (Vernonia amygdalina Del) and sniper 1000EC (2,3 dichlorovinyl dimethyl phosphate) using the Alium cepa test. AB - BACKGROUND: The unrefined nature of the herbal preparations from Vernonia amygdalina (VA) and toxicity potentials of Sniper may both have severe consequences on the biochemical and genetic systems. OBJECTIVES: To assess the microscopic and macroscopic effects of these substances. METHODS: VA leafs and Sniper were prepared and dissolved in distilled water to give different concentrations. Series of baseline tests were carried out to establish concentration range for root growth. Series of twelve onion bulbs of three per series was prepared, with a series of three onion bulbs serving as control. Chromosomal aberrations were statistically analysed using chi- squared test. Root bundle mean length was obtained after 96 hours and EC50 values at 95% confidence interval was determined from a plot of root length against sample concentrations using Microsoft Excel software. RESULTS: Total cytotoxic effect was induced by 2% sniper and 70% VA. EC50 for VA and sniper were 33.07 and 0.346 respectively. The two substances induced chromosomal aberrations and the effect was concentration dependent. CONCLUSION: There are risks of these widely used substances for therapeutic and environmental purposes. PMID- 29026389 TI - Oxidative stress and histopathological changes induced by methylthiophanate, a systemic fungicide, in blood, liver and kidney of adult rats. AB - BACKGROUND: Methyl-thiophanate (MT), a fungicide largely used in agriculture throughout the world including Tunisia, protects many vegetables, fruits and field crops against a wide spectrum of fungal diseases. Oxidative stress has been proposed as a possible mechanism involved in MT toxicity on non-target organism. METHODS: In the present study, the effect of MT injected intraperitoneally to adult rats at 300 or 500 mg/kg of body weight was studied on blood, liver and kidney. RESULTS: Our results showed 3 days after MT injection, a significant decrease in hemoglobin and hematocrit values. A disruption in total white blood cells and platelets also occurred. Accordingly, an increased in malondialdehyde, H2O2 and advanced oxidation protein levels in liver and kidney were noted with the two doses. A significant change in plasma biomarkers and organ enzymatic and non-enzymatic activities were observed after MT treatment. The modifications in biochemical parameters were substantiated by histopathological data. CONCLUSION: These data confirmed the pro-oxidant effects of this fungicide. Accordingly, care must be taken to avoid mammalian and human exposure to MT. PMID- 29026390 TI - Renal histoarchitectural changes in nevirapine therapy: possible role of kolaviron and vitamin C in an experimental animal model. AB - BACKGROUND: There is paucity of literature regarding the nephrotoxicity of antiretroviral drugs and its interaction with plant-based adjuvants. This study investigates the attenuating effect of kolaviron in nevirapine-therapy on the histological structure of the kidneys of adult male Sprague-Dawley rats. OBJECTIVE: To determine the attenuating influence of anti-oxidant status of kolaviron on the kidneys of experimental animals following nevirapine administration. METHODS: Forty eight pathogen-free adult male Sprague-Dawley rats were used for this study. The animals were divided into 8 groups (A-H) with 6 animals in each group. Group A was given normal saline as the control; group B was given nevirapine; group C was given kolaviron; group D was given vitamin C; group E was given nevirapine and kolaviron; group F was given nevirapine and vitamin C; Group G was given nevirapine and kolaviron (kolaviron withdrawn after day 28) and group H was given corn oil. The experiment lasted 56 days after which the animals were sacrificed, blood samples were collected through cardiac puncture for serum analysis and the kidneys were harvested and prepared for H& E histological examination. RESULTS: Nevirapine caused histoarchitectural damage in the glomerular apparatus with resultant increase in kidney/body weight ratio (p<0.001). Adjuvant treatment with kolaviron attenuated these nephrotoxic effects. Serum anti-oxidant enzyme (SOD and CAT) activities were significantly reduced in kolaviron and vitamin C treated animals, whereas in the nevirapine group these parameters were significantly elevated (P<0.05). However, co administration of nevirapine and vitamin C did not improve the histoarchitecture of the kidney. CONCLUSION: Adjuvant treatment with kolaviron (an anti-oxidant) for 56 days appears to attenuate the nephrotoxicity of nevirapine in this model. PMID- 29026391 TI - Prevalence of khat chewing and its effect on academic performance in Sidama zone, Southern Ethiopia. AB - BACKGROUND: Khat use is a well-established public health problem in Yemen, Arabian Peninsula, and Ethiopia. Along with its large scale production, the magnitude of khat use is increasing among students. OBJECTIVE: This study was intended to assess the prevalence, determinants, and effect of khat use on academic performance of high school students in Sidama Ethiopia. METHODOLOGY: A cross-sectional study was conducted from April to June 2015. We used a stratified sampling technique to draw a total of 1,577 students. The data was collected using self-administered questionnaires and analyzed using SPSS version 20. Descriptive statistics and logistic regression models were used to determine the prevalence, effects, and predictors of khat use. RESULT: The life time and current prevalence of khat use were 14.6% and 13%, respectively. Smoking cigarette (AOR=5.1, 95% C.I: 2.3-14.3), drinking alcohol (AOR=3.0, 95% C.I: 1.4 6.3), having a family growing khat (AOR=2.0, 95% C.I: 1.1-2.5), having friend chewing khat (AOR=3. 95% C.I: 2.0-4.6), were some of factors that increased the odds of students' khat use. Student's khat use increased the odds of student's poor academic performance (AOR=2.1, 95% C.I: 1.1-3.9). CONCLUSION: The prevalence of khat use in high khat producing districts of Sidama and its contribution to poor academic performance demand prompt intervention. PMID- 29026392 TI - Evaluation of the mobile phone electromagnetic radiation on serum iron parameters in rats. AB - BACKGROUND: Electromagnetic fields (EMF) created by mobile phones during communication have harmful effects on different organs. OBJECTIVES: It was aimed to investigate the effects of an EMF created by a mobile phone on serum iron level, ferritin, unsaturated iron binding capacity and total iron binding capacity within a rat experiment model. METHODS: A total of 32 male Wistar albino rats were randomly divided into the control, sham, mobile phone speech (2h/day) and stand by (12 h/day) groups. The speech and stand by groups were subjected to the EMF for a total of 10 weeks. RESULTS: No statistically significant difference was observed between the serum iron and ferritin values of the rats in the speech and stand by groups than the control and sham groups (p>0.05). The unsaturated iron binding capacity and total iron capacity values of the rats in the speech and stand by groups were significantly lower in comparison to the control group (p<0.01). CONCLUSION: It was found that exposure to EMF created by mobile phones affected unsaturated iron binding capacity and total iron binding capacity negatively. PMID- 29026393 TI - In vitro investigation of clofazimine analogues for antiplasmodial, cytotoxic and pro-oxidative activities. AB - BACKGROUND: Tetramethyl-piperidine-substituted, B4119 and B4158 have been shown to exhibit antiplasmodial activity. OBJECTIVES: The in vitro antiplasmodial, cytotoxic and oxidative activities of clofazimine and its analogues, all TMP (tetramethylpiperidyl)-substituted phenazines except B669, were evaluated in this study. METHODS: The antiplasmodial activity of the compounds against RB-1 and pfUP10 laboratory strains of Plasmodium falciparum was investigated by flow cytometry. The cytotoxic activity against HeLa cells and oxidative activity were studied employing colorimetric and cytochrome C reduction assays respectively. RESULTS: The riminophenazine agents exhibited antiplasmodial action of varying degrees: B669, B4100 and B4103 showed the best activity while B4121 and B4169 exhibited significant activity at 2ug/ml. Clofazimine had no antiplasmodial activity. The compounds B4100, B4103, B4121 and B4169 exhibited significant cytotoxic activity against HeLa cells at concentrations of 0.5ug/ml and above while B669 was active at 2ug/ml. Clofazimine and B669 tested at a concentration of 0.5ug/ml caused enhancement (p <= 0.05) of neutrophil superoxide production when compared to the FMLP control while all the other TMP-derivatives had no effect (p >= 0.05). CONCLUSION: Tetramethylpiperidyl-subsituted phenazines may potentially be useful antimalarial/antitumor agents with no pro-oxidative properties. In vivo studies on the agents relative to these properties are recommended. PMID- 29026394 TI - Quorum sensing inhibitory activity of sub-inhibitory concentrations of beta lactams. AB - INTRODUCTION: The virulence factors of Pseudomonas aeruginosa are under the control of quorum sensing (QS) signals. Hence, interference with QS prevents its pathogenesis. OBJECTIVE: The aim of the present research is to assess the influence of some beta-lactam antibiotics on cell communication and the release of different virulence factors. METHODS: The minimal inhibitory concentrations of ceftazidime, cefepime and imipenem were evaluated by microbroth dilution method. The effect of sub-inhibitory concentration of the tested antibiotics on QS signals was investigated using reporter strain assay. In addition, different virulence factors (elastase, protease, pyocyanin and hemolysin) were estimated in the presence of their sub-inhibitory concentrations. RESULTS: Low concentrations of ceftazidime, cefepime and imipenem caused significant elimination of the QS signals 3OH-C12-HSL and C4-HSL up to 1/20 MIC. Furthermore, low concentrations of the tested antimicrobials suppressed virulence factors elastase and hemolysin. Moreover, 1/20 of their MICs reduced elastase, protease, pyocyanin and hemolysin. CONCLUSION: Utilization of beta-lactam antibiotics at low concentrations could be an effective approach for prevention and treatment of P. aeruginosa infection. PMID- 29026395 TI - Tuberculosis among HIV-infected population: incidence and risk factors in rural Tanzania. AB - BACKGROUND: The incidence of tuberculosis among HIV-infected populations with high CD4 count in high burden countries has not been well studied. OBJECTIVE: To assess the TB incidence in HIV-infected adults and its associated risk factors. METHOD: A cohort study with retrospective review of medical records and prospective follow-up of HIV-infected adult participants attending CTC who were 18-55 years old, had CD4 count more than 250 cells/mm3 in the period of 2008-2010 and were not on ART at enrolment. Cox proportional hazard regression was used to explore the predictors of incident TB. RESULTS: Overall 777 (24%) of 3,279 CTC enrolled HIV-infected adults fulfilled the inclusion criteria of the study. The incidence of TB in the study population ranged from 0.8/100 per person years (PY) at risk (95% CI 0.5-1.3) in the main analysis to 1.7/100 PY at risk (95% CI 1.0 2.6) in sensitivity analyses. Only prior history of TB disease was found to have a significant association with an increased risk of TB, hazard ratio 5.7 (95% CI 2.0-16.4, p value 0.001). CONCLUSION: Tuberculosis incidence among HIV-infected adults with medium/high CD4 count in Bagamoyo is lower than in other high TB burden countries. Previously TB treated patients have a much higher risk of getting TB again than those who never had TB before. PMID- 29026396 TI - Willingness by people living with HIV/AIDS to utilize HIV services provided by Village Health team workers in Kalungu district, central Uganda. AB - BACKGROUND: Less than one quarter of people in need have access to HIV services in Uganda. This study assessed willingness of people living with HIV/AIDS (PLWHAs) to utilize HIV services provided by Village Health Teams (VHTs) in Kalungu district, central Uganda. METHODS: A cross-sectional study conducted in two health facilities providing anti-retroviral therapy enrolled 312 PLWHAs. Pre tested semi-structured questionnaires were administered to participants at household level. A forward fitting logistic regression model computed the predictors of willingness of PLWHAs to utilize services provided by VHTs. RESULTS: Overall, 49% were willing to utilize HIV services provided by VHTs increasing to 75.6% if the VHT member was HIV positive. PLWHAs who resided in urban areas were more likely to utilize HIV services provided by VHTs (AOR 0.24, 95%CI 0.06-0.87). Barriers to utilizing HIV services provided by VHTs were: income level > 40 USD (AOR 6.43 95%CI 1.19-34.68), being a business person (AOR 8.71 95%CI 1.23-61.72), peasant (AOR 7.95 95%CI 1.37-46.19), lack of encouragement from: peers (AOR 6.33 95%CI 1.43-28.09), spouses (AOR 4.93 95%CI 1.23-19.82) and community leader (AOR 9.67 95%CI 3.35-27.92). CONCLUSION: Social support could improve willingness by PLWHAs to utilize HIV services provided by VHTs for increased access to HIV services by PLWHA. PMID- 29026397 TI - Role of contact tracing in containing the 2014 Ebola outbreak: a review. AB - BACKGROUND: The 2014 outbreak of Ebola virus disease which emerged in the month of March in the year 2014 in Guinea has been declared as a public health emergency of international concern. OBJECTIVES: The objectives of the review article are to assess the role of contact tracing in the Ebola outbreak and to identify the challenges faced by the health workers while performing contact tracing. METHODS: An extensive search of all materials related to the Ebola outbreak and contact tracing was carried out in PubMed, Medline, World Health Organization website and Google Scholar search engines. Keywords used in the search included Ebola virus disease, West-Africa, contact tracing, World Health Organization. Overall 60 articles were selected and included in the discussion. RESULTS: Contact tracing is an important strategy in epidemiology and refers to the identification and diagnosis of those individuals who have come in contact with an infected person. It ultimately aims to reduce the time span required to detect and treat a case of an infectious disease and hence significantly minimize the risk of transmission to the subsequent susceptible individuals. In-fact, contact tracing continues to remain an important measure, as it aids the epidemiologist in containing the infection. CONCLUSION: The strategy of contact tracing has a great potential to significantly reduce the incidence of cases of Ebola virus disease. However, its success is eventually determined by the level of trust between the community and the public health system and the quality of the diagnostic & treatment services. PMID- 29026398 TI - Where there is no doctor: can volunteer community health workers in rural Uganda provide integrated community case management? AB - INTRODUCTION: Integrated community case management (iCCM) involves assessment and treatment of common childhood illnesses by community health workers (CHWs). Evaluation of a new Ugandan iCCM program is needed. OBJECTIVES: The objectives of this study were to assess if iCCM by lay volunteer CHWs is feasible and if iCCM would increase proportions of children treated for fever, pneumonia, and diarrhoea in rural Uganda. METHODS: This pre/post study used a quasi-experimental design and non-intervention comparison community. CHWs were selected, trained, and equipped to assess and treat children under five years with signs of the three illnesses. Evaluation included CHW-patient encounter record review plus analysis of pre/post household surveys. RESULTS: 196 iCCM-trained CHWs reported 6,276 sick child assessments (45% fever, 46% pneumonia, 9% diarrhoea). 93% of cases were managed according to algorithm recommendations. Absolute proportions of children receiving treatment significantly increased post-intervention: antimalarial for fever (+24% intervention versus +4% control) and oral rehydration salts/zinc for diarrhoea (+14% intervention versus +1% control). CONCLUSION: In our limited-resource, rural Ugandan setting, iCCM involving lay CHWs was feasible and significantly increased the proportion of young children treated for malaria and diarrhoea. PMID- 29026399 TI - Healthcare spending and health outcomes: evidence from selected East African countries. AB - BACKGROUND: Over the last decade, total healthcare expenditures, comprised of both public and private healthcare expenditures, have increased in most East African countries. At the same time, health outcomes such as infant mortality rates, life expectancy at birth and other health outcome indicators have improved. OBJECTIVES: This paper examines the association between healthcare expenditures and health outcomes for eight East African countries: Burundi, Eritrea, Ethiopia, Kenya, Rwanda, Sudan, Tanzania, and Uganda. In this study, health outcomes are defined as an improvement in adult life expectancy and a reduction in the number of neonatal, infant, and under-five deaths. METHODS: We implemented a panel data regression technique, analyzing both cross-sectional and time series information. This combined method has been used in healthcare studies by several authors. Data obtained from world development indicators for the years 2000-2014 was used for the panel study. RESULTS: First, we documented that there is a strong, positive association between total healthcare expenditures and total life expectancy. While we identified a positive relationship between healthcare expenditures and female and male life expectancy, we found that healthcare had a stronger effect on improving life expectancy in females than in males. Moreover, we found a negative relationship between healthcare expenditures and the number of neonatal, infant, and under-five deaths. CONCLUSION: The results of this study have important policy and management implications for the eight East African countries. From a policy perspective, it is necessary to understand if a greater allocation of resources to the healthcare sector is worthwhile and to determine whether to encourage private healthcare investment. From the management perspective, investing in more private institutions, such as hospitals and clinics, is essential for health outcomes in the average country. The results of this study can be used by the World Health Organization as well as other non governmental organizations that provide financial assistance to East African countries. PMID- 29026400 TI - Hydroxyurea therapy in adult Nigerian sickle cell disease: a monocentric survey on pattern of use, clinical effects and patient's compliance. AB - BACKGROUND: The clinical prospects of hydroxyurea therapy in the management of sickle cell disease (SCD) require evaluation in the Nigerian setting to develop indigenous guidelines. This survey examines the pattern of hydroxyurea therapy, its clinico-haematologic benefits and safety profile in Nigerian SCD subjects. METHODS: A cross sectional pilot survey was carried out among 60 adult SCD subjects over 3 months. Data on clinical phenotypes, relevant haematological parameters and details of hydroxyurea therapy were obtained using a structured questionnaire through an interview process and case file review. RESULTS: The median age was 30 years. Thirty-four (56.7%) of the subjects are aware of hydroxyurea therapy in SCD. Twenty-four (40%) SCD patients had previously used hydroxyurea. Only 4 subjects were fully compliant. Reasons for non-compliance included poor knowledge and lack of funds. In particular, hydroxyurea reduced leucocyte count and increased mean red cell volume (MCV) in compliant subjects. CONCLUSION: Hydroxyurea use is low among Nigerian SCD subjects despite its proven efficacy/clinical prospects in the developed nations. Large scale multicenter studies and clinical trials are needed to form a basis for developing standard local treatment protocol for its use. PMID- 29026401 TI - The sensitivity of Na+, K+ ATPase as an indicator of blood diseases. AB - BACKGROUND: Blood-related hereditary diseases are widespread in Eastern and SouthWestern regions of Saudi Arabia until recently. In this study, we used Na+, K+ATPase as an enzymatic indicator for the diagnosis of the diseases. MATERIALS AND METHODS: Individuals with different blood diseases (iron deficiency (n=13), anemia (n=14), thalassemia (n=16) and sickle cell anemia (n=12) were studied for Na+, K+-ATPase activity in the plasma membrane of red blood cell and compared with those of the healthy ones (n=20) of the same age and gender living in Jeddah, Saudi Arabia. RESULTS: There was a significant elevation in the specific activity of Na+, K+ATPase in individuals with anemia compared with those of control (0.0094 + 0.001 nmol / mg protein/min versus 0.0061 +/- 0.001). On the other hand, there was a significant reduction in enzyme activity in thalassemia (0.0028 +/- 0.002 nmol / mg protein/min) and sickle cell anemia cases (0.0042 +/ 0.001 nmol / mg protein/min) compared to the control group. The cut off value for Na+, K+ATPase activity is 0.005 umol Pi/min-showing 94% sensitivity and 93% specificity for the differentiation of blood abnormality. CONCLUSION: It can be recommended that the activity of Na+, K+-ATPase can be used for the diagnosis of individuals with blood diseases/disorders. PMID- 29026402 TI - Sonographic assessment of petroleum-induced hepatotoxicity in Nigerians: does biochemical assessment underestimate liver damage? AB - BACKGROUND: Exposure to petroleum products has been shown to have significant adverse effects on the liver which can manifest either as morphological or physiological changes. OBJECTIVES: The aim of the study was to assess the effects of chronic exposure to some petroleum products on the liver of exposed workers using sonography and to determine whether biochemical assessments underestimated hepatotoxicity. METHODS: Abdominal ultrasound was performed on 415 exposed workers in order to evaluate liver echogenicity and size. Also, biochemical assessment of the liver was done to evaluate its function. RESULTS: Statistically significant increase in the liver parenchymal echogenicity and the liver size was seen in the exposed workers compared with control (p <= 0.05). These increased as the exposure duration increased. It was also noted that out of 16.87% (N=70) exposed workers with abnormal liver echopattern, only 2.65% (N=11) had alanine aminotransferase above the reference range. CONCLUSION: The study revealed evidence of ultrasound detectable hepatotoxicity among the exposed subjects. Sonography appeared to detect petroleum products-induced hepatic toxicity more than biochemical assays suggesting that biochemical assessment may have underestimated toxicity. PMID- 29026403 TI - Practicalities of health survey fieldwork research in a resource limited setting: challenges and lessons learnt from Uganda. AB - BACKGROUND: Countless research has been undertaken in sub-Saharan African countries to provide evidence for health policy interventions. However, despite the bulk of health research, very few studies have documented the experiences and practicalities of conducting health survey fieldwork in such settings. METHODS: Results were obtained through synthesis of notes on fieldwork experiences documented during a household survey as part of a doctoral research project. Challenges faced and adaptive strategies developed to overcome or reduce the impact on the survey are highlighted. RESULTS: Key challenges included infrastructure and electrical power outages; sampling and access to clients; ethics approval and political stability; and safety and wellbeing of researchers. Adaptive strategies were developed to overcome the different challenges faced. CONCLUSION: The experiences highlighted and strategies developed to overcome fieldwork challenges give practical advice for future data collection research in similar sub-Saharan African settings. PMID- 29026404 TI - Investigation of the relationship between structural empowerment and organizational commitment of nurses in Zanjan hospitals. AB - BACKGROUND: The demanding nature of nursing work environments signals longstanding and growing concerns about nurses' health and job satisfaction and the provision of quality care. Specifically in health care settings, nurse leaders play an essential role in creating supportive work environments to avert these negative trends and increase nurse job satisfaction. OBJECTIVE: The purpose of this study was to examine the relationship between structural empowerment and organizational commitment of nurses. METHODS: 491 nurses working in Zanjan hospitals participated in this descriptive-correlational study in 2010. Tools for data collection were Meyer and Allen's organizational commitment questionnaire and "Conditions for Work Effectiveness Questionnaire-II" (CWEQ-II). Data was analyzed by SPSS16. The statistical tests such as variance analysis, t-test, pearson correlation coefficient and linear regression were used for data analysis. RESULTS: According to the findings, the perception of nurses working in hospitals on "Structural Empowerment" was moderate (15.98+/-3.29). Nurses believed "opportunity" as the most important element in structural empowerment with the score of 3.18 +/-0.79. Nurses working in non-academic hospitals and in non-teaching hospitals had higher organizational commitment than others. There was a significant relationship between structural empowerment and organizational commitment. CONCLUSION: Generally, structural empowerment (relatively strong) correlates with nurses' organizational commitment. We concluded that a high structural empowerment increases the organizational commitment of nurses. PMID- 29026405 TI - Lateral retroperitoneoscopic adrenalectomy for complicated adrenal tumor larger than 5 centimeters. AB - BACKGROUND: The role of lateral retroperitoneoscopic adrenalectomy (LRA) for complicated tumor with large diameter remains controversial, this study aimed to evaluate the effectiveness of this procedure on the management of tumor larger than 5cm in diameter. METHODS: A retrospective comparison was conducted of 67 patients with large complicated adrenal tumor (>5cm). 41 patients received LRA, and 26 received open adrenalectomy (OA) in our hospital between January 2011 and June 2015. Basic characteristics regarding mean age, gender, body mass index (BMI), tumor size, tumor side, previous abdominal surgery, resection method, pathology were preferentially analyzed. Operative indicators regarding operation time, estimated blood loss (EBL), conversion to ICU, complications, post operative hospitalization, duration of drain, time to first oral intake and ambulation were compared between groups. RESULTS: There were no significant differences between the two groups in the basic characteristics. The mean operation time for LRA was shorter than OA (98.7+/-32.3 min vs 152.7+/-72.3 min, P = 0.001). EBL was 31.9+/-20.0 ml for LRA and 590.0+/-1181.1 ml for OA (P = 0.03). There was no complication in LRA group and one patient in OA group had complications, but this difference was not significant (P = NS). The post operative hospitalization in LRA was 7.4+/-2.8 days, and shorter than 9.8+/-2.7 days in OA group (P = 0.00). The time to first oral intake and ambulation for LRA was shorter than OA (first oral intake, 1.9+/-0.8 days vs 3.1+/-1.3 days, P = 0.00; time to ambulation, 2.6+/-1.4 days vs 4.2+/-1.6 days, P = 0.00). While the difference between groups were not significant in terms of ICU conversion (3/41 vs 4/26, P = NS) and duration of drain (3.9+/-2.2 days vs 4.7+/-1.9 days, P = NS). CONCLUSION: Our study shows that LRA can be performed safely and effectively for complicated adrenal tumors larger than 5 cm in diameter, but it remains technically demanding. PMID- 29026407 TI - Congenital hypothyroidism: insights into pathogenesis and treatment. AB - Congenital hypothyroidism occurs in approximately 1 in 2000 newborns and can have devastating neurodevelopmental consequences if not detected and treated promptly. While newborn screening has virtually eradicated intellectual disability due to severe congenital hypothyroidism in the developed world, more stringent screening strategies have resulted in increased detection of mild congenital hypothyroidism. Recent studies provide conflicting evidence about the potential neurodevelopmental risks posed by mild congenital hypothyroidism, highlighting the need for additional research to further define what risks these patients face and whether they are likely to benefit from treatment. Moreover, while the apparent incidence of congenital hypothyroidism has increased in recent decades, the underlying cause remains obscure in most cases. However, ongoing research into genetic causes of congenital hypothyroidism continues to shed new light on the development and physiology of the hypothalamic-pituitary-thyroid axis. The identification of IGSF1 as a cause of central congenital hypothyroidism has uncovered potential new regulatory pathways in both pituitary thyrotropes and gonadotropes, while mounting evidence suggests that a significant proportion of primary congenital hypothyroidism may be caused by combinations of rare genetic variants in multiple genes involved in thyroid development and function. Much remains to be learned about the origins of this common disorder and about the optimal management of less severely-affected infants. PMID- 29026408 TI - Camel Milk Has Beneficial Effects on Diabetes Mellitus: A Systematic Review. AB - CONTEXT: Controlling diabetes, a worldwide metabolic disease, by effective alternative treatments is currently a topic of great interest. Camel milk is believed to be a suitable hypoglycemic agent in experimental animals and patients with diabetes. The current systematic review aimed at evaluating the effect of camel milk on diabetes. EVIDENCE ACQUISITION: A comprehensive search was dine in PubMed and Scopus for all clinical trials and animal studies documented up to 2015, which focused on the effect of camel milk on diabetes markers. Studies which assessed the effects of camel milk, with no dose limit, on glucose parameters and lipid profiles in animals or humans with diabetes, were included. The quality of the included clinical trials was evaluated by the Delphi score checklist. RESULTS: The initial search yielded 73 articles. After screening abstracts and full texts, 22 articles were included consisting of 11 animal studies and 11 clinical trials, 8 of which focused on type 1 diabetes and the other three on type 2diabetes. All animal studies except for 1 showed significant reductions in at least 1 of the diabetes parameters such as blood glucose, insulin resistance, glycated hemoglobin, and lipid profile. In most of the clinical trials, the recommended dose of camel milk was 500 mL/day, which led to improvement of diabetes markers even after 3 months in patients with diabetes. CONCLUSIONS: Most of the studies in the current systematic review demonstrated the favorable effects of camel milk on diabetes mellitus by reducing blood sugar, decreasing insulin resistance and improving lipid profiles. PMID- 29026410 TI - The effect of reflexotherapy and massage therapy on vital signs and stress before coronary angiography: An open-label clinical trial. AB - BACKGROUND: Complementary medicine interventions are now successfully used to reduce stress as well as to stabilize hemodynamic indices within different procedures. The present study aimed to examine the effect of massage therapy and reflexotherapy on reducing stress in patients before coronary angiography. METHODS: In this open-label clinical trial, 75 consecutive patients who were candidate for coronary angiography were randomly assigned to receive reflexotherapy (n = 25), or massage therapy (n = 25), or routine care (n = 25) before angiography. The Spielberger State-Trait Anxiety Inventory was used to determine the stress level of patients before and after interventions and vital signs were also measured. RESULTS: Improvement in diastolic blood pressure, heart rate, and respiratory rate was shown in the reflexotherapy group, and similar effects were observed following other interventions including massage therapy and routine resting program. In subjects who received reflexotherapy the level of stress decreased slightly compared with the other two groups. However, following interventions the level of stress in reflexotherapy group was shown to be lower than other study groups. CONCLUSION: Reflexotherapy before coronary angiography can help to stabilize vital sign as well as reduce the level of stress. The effect of massage therapy was limited to reducing stress. PMID- 29026411 TI - Healthy eating index and cardiovascular risk factors among Iranian elderly individuals. AB - BACKGROUND: Concurrent with increase in life expectancy, the prevalence of chronic diseases such as cardiovascular diseases (CVD) has also increased. Therefore, the aim of this study was to evaluate the association between healthy eating index (HEI) score and CVD risk factors among Iranian elderly. METHODS: This cross-sectional study was performed on a sample of elderly persons from Isfahan, Iran, in 2013. Totally, 107 retired subjects were entered in statistical analysis. A semi- quantitative food frequency questionnaire was used to assess the dietary intake of participants. Anthropometric measurements and blood pressure of participants were determined. Fasting blood samples were taken for biochemical assessments. RESULTS: The results of linear regression determined a significant inverse association between HEI score and homeostasis model assessment of insulin resistance [HOMA-IR, beta = -0.238 (-0.426, -0.048)], fasting blood glucose [beta = -0.194 (-0.383, -0.004)], and high-sensitivity C reactive protein [hs-CRP, beta = -0.196, (-0.386, -0.005)]. In addition, a significant positive association was observed between HEI score and high density lipoprotein cholesterol [HDL-C, beta = 0.196 (0.006, 0.385)] levels. However, after adjusting for confounding variables, these significant associations were disappeared except for hs-CRP [beta = -0.074 (-0.145, -0.003)]. CONCLUSION: Healthy eating index was associated with reduced risk of cardiovascular risk factors in old people. It seems that more adherence with healthy eating index could provide cardio-protective effects in elderly persons. PMID- 29026412 TI - The role of manual thrombectomy in cardiovascular outcome among patients with total cutoff vessel myocardial infarction undergoing primary percutaneous coronary intervention. AB - BACKGROUND: The applicability of manual aspiration thrombectomy in patients with ST-segment elevation myocardial infarction (STEMI) has been a challenging issue. This study aimed to compare the impact of additive manual thrombectomy on patients with myocardial infarction (MI) and total cutoff vessel with standard primary percutaneous coronary intervention (PPCI) with bailout thrombectomy. METHODS: In this case-control study, 181 patients with acute STEMI were enrolled who referred to Chamran Hospital (Isfahan, Iran) between August to December 2014. The culprit lesion was treated with routine PPCI with bailout thrombectomy (111 patients) and routine primary thrombectomy then percutaneous coronary intervention [(PCI), 70 patients] during hospitalization and one month after discharge. Patients in the case group received manual thrombectomy before PPCI and patients in the control group received standard PPCI with bailout thrombectomy. Patients were followed during the study procedure, post hospitalization and one month later for cardiovascular outcomes including death, recurrent MI, stroke, major bleeding, post PCI arrhythmia, no reflow, thrombolysis in myocardial infarction (TIMI)-flow and TIMI myocardial blush grade (TMBG), which were assessed and recorded. RESULTS: Myocardial perfusion and angiographic outcomes had no significant differences in the two groups (P = 0.730). There was also no significant difference in no reflow prevalence between the two groups (P > 0.990). There were no significant differences for primary outcomes such as death, stroke, major bleeding and arrhythmia between the two groups (P < 0.050). In particular, outcomes were the same for both groups during hospitalization period and one month after discharge. Mortality rate during hospitalization was 5.7% for the control group and 4.5% for the case group (P = 0.730). However, one-month mortality rate was quite similar in both groups. CONCLUSION: This study showed there is no significant difference in cardiovascular outcomes such as death, stroke, bleeding, arrhythmia, target vessel revascularization, and distal embolization during hospitalization and one month after discharge in patients with acute MI and total cutoff of the involved vessel, who underwent PPCI with and without primary Export(r) aspiration catheter direct thrombosuction. PMID- 29026409 TI - Hemostasis in Hypothyroidism and Autoimmune Thyroid Disorders. AB - CONTEXT: There are contradictory results on the effect of hypothyroidism on the changes in hemostasis. Inadequate population-based studies limited their clinical implications, mainly on the risk of venous thromboembolism (VTE). This paper reviews the studies on laboratory and population-based findings regarding hemostatic changes and risk of VTE in hypothyroidism and autoimmune thyroid disorders. EVIDENCE ACQUISITION: A comprehensive literature search was conducted employing MEDLINE database. The following words were used for the search: Hypothyroidism; thyroiditis, autoimmune; blood coagulation factors; blood coagulation tests; hemostasis, blood coagulation disorders; thyroid hormones; myxedema; venous thromboembolism; fibrinolysis, receptors thyroid hormone. The papers that were related to hypothyroidism and autoimmune thyroid disorder and hemostasis are used in this review. RESULTS: Overt hypothyroidism is more associated with a hypocoagulable state. Decreased platelet count, aggregation and agglutination, von Willebrand factor antigen and activity, several coagulation factors such as factor VIII, IX, XI, VII, and plasminogen activator-1 are detected in overt hypothyrodism. Increased fibrinogen has been detected in subclinical hypothyroidism and autoimmune thyroid disease rendering a tendency towards a hypercoagulability state. Increased factor VII and its activity, and plasminogen activator inhibitor-1 are among several findings contributing to a prothrombotic state in subclinical hypothyroidism. CONCLUSIONS: Overt hypothyroidism is associated with a hypocoagulable state and subclinical hypothyroidism and autoimmune thyroid disorders may induce a prothrombotic state. However, there are contradictory findings for the abovementioned thyroid disorders. Prospective studies on the risk of VTE in various levels of hypofunctioning of the thyroid and autoimmune thyroid disorders are warranted. PMID- 29026413 TI - Evaluation of pentraxin-3 level and its related factors in patients undergoing primary percutaneous coronary intervention. AB - BACKGROUND: Inflammation has an important role in the development and progression of atherosclerosis, and acute phase proteins such as pentraxin-3 (PTX3) can be deployed in determining the prognosis of coronary artery disease (CAD). So the purpose of this paper was to evaluate the PTX3 level and its related factors in patients undergoing primary percutaneous coronary intervention (PCI). METHODS: In this cross-sectional study, the PTX3 levels were determined for 100 patients with ST-elevation myocardial infarction referred to the Modarres Hospital, Tehran, Iran. Checklist included demographic data [age, gender, history of myocardial infarction (MI)] and characteristics of heart disease (type of MI, culprit, and pre-dilation). PTX3 was measured for all patients before PCI. RESULTS: In this study, the mean age of the participants was 58.7 (11.4). Global registry of acute coronary events (GRACE) score was higher in the group with abnormal PTX3 levels (P = 0.008). The number of the involved vessels (P = 0.005), MI type (P = 0.05), and the need for PCI all had a significant relation with abnormal PTX3 levels. The increased levels of PTX3 received higher Killip class, lower ejection fraction, and higher GRACE score. The group with abnormal PTX3 had a significant difference in platelet counts (P = 0.018) in comparison with the group with normal level of PTX3. CONCLUSION: Currently, the biomarkers are highly important in the field of cardiovascular diseases. The diagnostic and prognostic importance of PTX3 as a new marker has been underscored in recent studies. Differentiating between high-risk patients with acute cardiac infarction and low-risk ones through their clinical signs is difficult. PMID- 29026414 TI - Acute myocardial infarction in very young adults: A clinical presentation, risk factors, hospital outcome index, and their angiographic characteristics in North India-AMIYA Study. AB - BACKGROUND: India is currently in the fourth stage of epidemiological transitions where cardiovascular disease is the leading cause of mortality and morbidity. Purpose of the present study was to assess the risk factors, clinical presentation, angiographic profile including severity, and in-hospital outcome of very young adults (aged <= 30 years) with first acute myocardial infarction (AMI). METHODS: Total of 1,116 consecutive patients with ST-segment elevation acute myocardial infarction (STEMI) were studied between March 2013 and February 2015 at LPS Institute of Cardiology, Kanpur, Uttar Pradesh, India. RESULTS: Mean age of the patients was 26.3 years. Risk factors were smoking (78.5%), family history of premature coronary artery disease (CAD) (46.8%), obesity (39.1%), physical inactivity (38.7%) and stressful life events (29.6%). The most common symptom and presentation was chest pain and anterior wall myocardial infarction (AWMI) in 94.8% and 58.8%, respectively. About 80.6% of patients had obstructive CAD with single vessel disease (57.6%), double-vessel disease (12.9%) and left main involvement (3.2%). Left anterior descending (LAD) was commonest culprit artery (58.1%) followed by right coronary artery in 28.2%. In-hospital mortality was 2.8%. Percutaneous coronary intervention was performed in 71.6% of patients. Median number and length of stent were 1.18 and 28 +/- 16 mm, respectively. CONCLUSION: AMI in very young adult occurred most commonly in male. Smoking was the most common risk factor. AWMI owing to LAD artery involvement was the most common presentation. Mean time of presentation after symptom onset was 16.9 hours. In contrast to western population, it is characterised by earlier onset, delayed presentation, more severity, diffuse disease, and more morbidity but with favourable in-hospital mortality. PMID- 29026415 TI - Two cases of parachute tricuspid valve confirmed by three-dimensional echocardiography. AB - BACKGROUND: Parachute tricuspid valve is a rare congenital malformations explained in the literature. In most cases, this malformation coexists with other congenital defects. The importance of this condition depends on its functional consequences. CASE REPORT: First case was a 52-year-old female patient presented with palpitation. She had a history of paroxysmal supraventricular tachycardia. Transthoracic echocardiography revealed large secundum type atrial septal defect and all the tricuspid valve leaflets appeared to be connected to a single calcified papillary muscle in right ventricle suggestive of parachute tricuspid valve. Echocardiography showed severe right ventricle and right atrial enlargement, and moderate to severe tricuspid regurgitation without significant tricuspid stenosis. Another case was a 30-year-old female patient referred for echocardiography prior to her breast cancer chemotherapy. Transthoracic echocardiography revealed a right ventricle with an unusual fusion of papillary muscles resulting in a single calcified head for the attachment of all tricuspid leaflets. These findings were suggestive of a parachute-like tricuspid valve. Other data were mild to moderate tricuspid regurgitation without any stenosis, and normal right ventricle size and function. In both cases, parachute tricuspid valve was confirmed by three dimensional echocardiograph. CONCLUSION: In our first case, parachute tricuspid valve was associated with atrial septal defect, although in the second case, no associated anomaly was detected, a condition not previously reported in the literature. In both cases, parachute tricuspid valve was not associated with tricuspid stenosis. Based on other published cases, parachute involvement of the tricuspid valve is less often reported than cases involving the mitral valve. Additionally, the associated consequences in tricuspid valve position such as tricuspid stenosis seem to be less significant than cases involving mitral valve. It is recommended that in patients with tricuspid valve involvement, parachute anomaly should be considered as a possible rare cause. PMID- 29026416 TI - Right ventricular thrombosis as a manifestation of Behcet's syndrome. AB - BACKGROUND: Behcet's disease (BD) is a rare condition with a classic triad of oral and genital ulceration and eye disease. Cardiovascular complication is a rare finding in BD. CASE REPORT: In this report, we present a seventeen years old patient with a history of fever for 20 days, who developed a clot in right ventricle (RV). Cardiac magnetic resonance imaging (MRI) and echocardiography demonstrated a thrombosis in RV and a thoracic multi detector computed tomographic image showed pulmonary thromboembolism (PTE) in patient. The patient was administered with methylprednisolone, cyclophosphamide and anticoagulant. A regular follow-up was carried out. Two months later, the RV clot had disappeared on transthoracic echocardiography (TTE). CONCLUSION: In BD, early cardiac MRI and echocardiography should be performed for the detection of cardiac involvement, and medical treatment is the first choice of treatment. PMID- 29026417 TI - Some facts about the Metabolic Syndrome in Iran. PMID- 29026418 TI - Heterozygosity analysis of polycystic kidney disease 1 gene microsatellite markers for linkage analysis of autosomal dominant polycystic kidney disease type 1 in the Iranian population. AB - BACKGROUND: Autosomal dominant polycystic kidney disease (ADPKD) is the most common genetic cause of end-stage renal disease. Although imaging techniques are a means of accurate diagnosis when the cysts appear in the third or fourth decades of the patient's life, they are of little value for early diagnosis. Genetic tests are required for preimplantation genetic diagnosis, decision-making for kidney donation to an affected relative. Although mutation of the polycystic kidney disease (PKD1) gene is solely responsible for the most cases of ADPKD, direct genetic testing is limited by the large size of this gene and the presence of many mutations without hot spots. Therefore, indirect diagnosis with linkage analysis using informative microsatellite markers has been suggested. MATERIALS AND METHODS: In this study, we assessed the informativeness of the PKD1 gene markers D16S475, D16S291, and D16S3252 in Iranian population. Using specific primers, fluorescent polymerase chain reaction (PCR) was performed on genomic DNA extracted from fifty unrelated individuals. PCR products were analyzed by the ALFexpress DNA sequencer system, and the number and frequency of alleles were determined to calculate the heterozygosity (HET) and polymorphism information content (PIC) values. RESULTS: We found that the HET and PIC values for the D16S475 marker are 0.92 and 0.91, respectively. These two values are 0.82 and 0.80 for D16S291 and 0.50 and 0.47 for D16S3252, respectively. CONCLUSION: Based on this data, D16S475 and D16S291 are highly and D16S3252 is moderately informative for indirect genetic diagnosis of PKD1 mutations in this population. PMID- 29026419 TI - Effect of Vitamin D deficiency treatment on thyroid function and autoimmunity markers in Hashimoto's thyroiditis: A double-blind randomized placebo-controlled clinical trial. AB - BACKGROUND: The link between autoimmune thyroid diseases and Vitamin D deficiency has been reported. However, there are controversies in this regard. We conducted a double-blind randomized placebo-controlled clinical trial to investigate the effect of Vitamin D deficiency treatment on thyroid function and autoimmunity marker (thyroid peroxidase antibody [TPO-Ab]) in patients with Hashimoto's thyroiditis. MATERIALS AND METHODS: Fifty-six patients with Hashimoto's thyroiditis and Vitamin D deficiency (25-hydroxyvitamin D level <=20 ng/mL) were randomly allocated into two groups to receive Vitamin D (50000 IU/week, orally) or placebo for 12 weeks, as Vitamin D-treated (n = 30) and control (n = 26) groups, respectively. TPO-Ab, thyroid-stimulating hormone (TSH), parathormone, calcium, albumin, and creatinine concentrations were compared before and after trial between and within groups. The data were presented as mean (standard error [SE]) and analyzed by appropriate tests. RESULTS: Mean (SE) of Vitamin D was increased in Vitamin D-treated group (45.5 [1.8] ng/mL vs. 12.7 [0.7] ng/mL, P = 0.01). Mean (SE) of TPO-Ab did not significantly change in both groups (734 [102.93] IU/mL vs. 820.25 [98.92] IU/mL, P = 0.14 in Vitamin D-treated and 750.03 [108.7] [IU/mL] vs. 838.07 [99.4] [IU/mL] in placebo-treated group, P = 0.15). Mean (SE) of TSH was not changed in both groups after trial, P = 0.4 and P = 0.15 for Vitamin D-treated and control groups, respectively. No significant difference was observed between two study groups in none studied variables (P > 0.05). CONCLUSION: Vitamin D treatment in Vitamin D deficient patients with Hashimoto's thyroiditis could not have significant effect on thyroid function and autoimmunity. PMID- 29026421 TI - Comparison of patellar versus hamstring tendon autografts in arthroscopic anterior cruciate ligament reconstruction: A 6-month follow-up of a randomized clinical trial. AB - BACKGROUND: The purpose of this study was to compare the outcomes of anterior cruciate ligament (ACL) reconstruction using the patellar versus hamstring tendon (HT) autograft. MATERIALS AND METHODS: In this randomized clinical trial, fifty patients undergoing arthroscopic ACL reconstruction were randomized into two equal groups: Those treated with either autogenous patellar tendon grafts (PT group) or HT group grafts. All patients were reviewed immediately after surgery, at 6 and 12 weeks after surgery, and then at 6 months using the International Knee Documentation Committee evaluation form. Infection, severity of pain (visual analog scale), duration of rehabilitation, and clinical and magnetic resonance imaging (MRI) findings were assessed at the 6-month follow-up. Positive pivot shift and Lachman test were considered clinical signs and symptoms of treatment failure. In addition, the absence of the ACL or transverse ACL rather than the posterior oblique ligament is an MRI finding that indicates treatment failure. RESULTS: Comparing changes in pain and range of motion (ROM) in patients first and 6 months after therapy show that pain had been relief significantly (P < 0.001) and ROM dramatically changes (P < 0.001). The average rehabilitation period in the PT group was 13.2 +/- 2.08 weeks whereas in the HT group, it was 9.28 +/- 2.26 weeks. A significant difference was seen between the two groups in terms of the rehabilitation period (P < 0.001). No significant difference was found in the normal ROM between the groups (P = 0.32). When the pain severity was considered, a significant difference was found between the PT group and the HT group (P < 0.001). The HT group patients had less knee pain than did the PT group patients. No significant difference in infection rates was seen between two groups (P = 0.66). CONCLUSION: Considering the better outcomes of HT reconstructions for the two parameters of pain severity and rehabilitation period, we consider HTs to be the ideal graft choice for ACL reconstructions. PMID- 29026422 TI - Treatment for incarcerated indirect hernia with "Cross-Internal Ring" inguinal oblique incision in children. AB - BACKGROUND: This study aims to evaluate the utility of the "Cross-Internal Ring" inguinal oblique incision for the surgical treatment of incarcerated indirect hernia (IIH) complicated with severe abdominal distension. MATERIALS AND METHODS: Patients of IIH complicated with severe abdominal distension were reviewed retrospectively. All patients received operation through the "Cross-Internal Ring" inguinal oblique incision. RESULTS: There were totally 13 patients were included, male to female ratio was 9-4. The time for patients to resume oral feeding varying from 2 to 5 days after operation, no complications include delayed intestinal perforation, intra-abdominal abscess, and incision infection happened. Average postoperative hospital stay was 5.2 days. All cases were followed up for 6-18 months. No recurrence or iatrogenic cryptorchidism happened. CONCLUSION: "Cross-Internal Ring" inguinal oblique incision is a simple, safe, and reliable surgical method to treat pediatric IIH complicated with severe abdominal distension. PMID- 29026420 TI - Quality of life in inflammatory bowel disease patients: A cross-sectional study. AB - BACKGROUND: Inflammatory bowel disease (IBD) has a significant impact on health related quality of life (HRQOL). This study aims to investigate the variables which can be attributed to HRQOL in IBD patients. MATERIALS AND METHODS: Seventy one patients filled in IBD questionnaire (IBDQ-32), Pittsburgh sleep quality index questionnaire, and sociodemographic questionnaire. Disease activity was assessed by Crohn's disease activity index (CDAI) and ulcerative colitis activity index (UCAI). The correlations of sleep quality, sociodemographic variables, and disease characteristics with IBDQ were investigated. RESULTS: IBDQ-32 mean score was lower in patients who had hospitalization (P = 0.01), poor sleep quality (P < 0.001), anemia (P = 0.03), more severe disease (P = 0.01), and those who had not consumed folic acid (P = 0.01) relative to their counterparts. A multivariate regression analysis identified the predictors of decreased HRQOL as not consuming folic acid (P = 0.008), poor sleep quality (P = 0.014), and disease severity (P = 0.043). CONCLUSION: Impaired HRQOL was significantly associated with poor sleep quality, lack of folic acid consumption, and disease severity in IBD patients. Therefore, evaluation of folic acid level and efficacy of its supplementation in prospective studies is recommended. Treatment of sleep disturbance with pharmacological agents and nonpharmacological methods should be kept in mind as well. PMID- 29026423 TI - Comprehensive maternal characteristics associated with birth weight: Bayesian modeling in a prospective cohort study from Iran. AB - BACKGROUND: In this study, we aimed to determine comprehensive maternal characteristics associated with birth weight using Bayesian modeling. MATERIALS AND METHODS: A total of 526 participants were included in this prospective study. Nutritional status, supplement consumption during the pregnancy, demographic and socioeconomic characteristics, anthropometric measures, physical activity, and pregnancy outcomes were considered as effective variables on the birth weight. Bayesian approach of complex statistical models using Markov chain Monte Carlo approach was used for modeling the data considering the real distribution of the response variable. RESULTS: There was strong positive correlation between infant birth weight and the maternal intake of Vitamin C, folic acid, Vitamin B3, Vitamin A, selenium, calcium, iron, phosphorus, potassium, magnesium as micronutrients, and fiber and protein as macronutrients based on the 95% high posterior density regions for parameters in the Bayesian model. None of the maternal characteristics had statistical association with birth weight. CONCLUSION: Higher maternal macro- and micro-nutrient intake during pregnancy was associated with a lower risk of delivering low birth weight infants. These findings support recommendations to expand intake of nutrients during pregnancy to high level. PMID- 29026424 TI - Prevalence and antibiotic resistance pattern of bacteria isolated from urinary tract infections in Northern Iran. AB - BACKGROUND: This study aimed to investigate the bacteria associated with urinary tract infection (UTI) and antibiotic susceptibility pattern of the isolates during 2013-2015 in Northern Iran. MATERIALS AND METHODS: Overall 3798 patients with clinical symptoms of UTI were subjected as samples, and they were cultured and pure isolated bacteria were identified using biochemical tests and subjected to antibiogram assessment using disc diffusion method. RESULTS: Totally, 568 (14.96%) from 3798 patients had positive UTI. Four hundred and ninety-seven (87.5%) from 568 isolated bacteria were resistant to at least one antibiotic. Escherichia coli, Staphylococcus spp., and Pseudomonas spp. were the most prevalent bacteria. Isolated bacteria indicated the highest antibiotic resistance to methicillin (76.06%) and ampicillin (89.29%) and also revealed the most sensitivity to imipenem (99.1%) and amikacin (91.57%). Statistical analysis of the resistance pattern trend during 3 years indicated the insignificant increase (P > 0.05) in antibiotic resistance of the isolates. CONCLUSION: The results of this study revealed a great concern for emerging UTI-related multidrug-resistant strains of bacteria causing UTI in Iran. PMID- 29026425 TI - Effect of cytochrome P450 2C19*17 allelic variant on cardiovascular and cerebrovascular outcomes in clopidogrel-treated patients: A systematic review and meta-analysis. AB - BACKGROUND: We aimed to evaluate the associations of gain-of-function allele of CYP2C19*17 and risk of clinical events in clopidogrel-treated patients with cardiovascular and cerebrovascular diseases (CCVDs). MATERIALS AND METHODS: Literature search was conducted in PubMed, EMBASE, and Cochrane Library. Odds ratio (OR) combined with 95% confidence interval (CI) was the pooled statistics. Subgroup analysis was performed by disease type, bleeding events, and race. RESULTS: Thirteen eligible studies involving 14,239 patients with CYP2C19*17 carriers or noncarriers were included in the meta-analysis. CYP2C19*17 was significantly related to decreased risk of major adverse cardiovascular and cerebrovascular events (MACCEs) in patients with coronary artery disease (CAD) (OR = 0.76, 95% CI: 0.60-0.98, P = 0.03), however, irrelevant with stent thrombosis in neither CAD nor ischemic heart disease patients. CYP2C19*17 was also significantly linked to decreased risk of high platelet reactivity (HPR) in CCVD patients (OR = 0.61, 95% CI: 0.43-0.88, P = 0.008). Meanwhile, CYP2C19*17 was significantly associated with bleeding risk in CCVD patients (OR = 1.89, 95% CI: 1.09-3.25, P = 0.02) but not related to major bleeding risk (OR = 1.35, 95% CI: 0.87-2.08, P = 0.18). Several outcomes in Caucasian subgroup were reverse to the overall results, such as bleeding events and HPR, which lacked significance. CONCLUSION: CYP2C19*17 had a significant effect on the reduced risks of MACCE and HPR as well as increased bleeding risk, but not on the risks of stent thrombosis and major bleeding in clopidogrel-treated CCVD patients. Outcomes might be different in different races. PMID- 29026427 TI - Adoption of the Nutri-score system in France to reduce the incidence of noncommunicable diseases. PMID- 29026426 TI - Effects of nanozeolite/starch thermoplastic hydrogels on wound healing. AB - BACKGROUND: Wound healing is a complex biological process. Some injuries lead to chronic nonhealing ulcers, and healing process is a challenge to both the patient and the medical team. We still look forward an appropriate wound dressing. MATERIALS AND METHODS: In this study, starch-based nanocomposite hydrogel scaffolds reinforced by zeolite nanoparticles (nZ) were prepared for wound dressing. In addition, a herbal drug (chamomile extract) was added into the matrix to accelerate healing process. To estimate the cytocompatibility of hydrogel dressings, fibroblast mouse cells (L929) were cultured on scaffolds. Then, 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium-bromide assay test and interaction of cells and scaffolds were evaluated. For evaluating healing process, 48 male rats were randomly divided into four groups of four animals each (16 rats at each step). The ulcers of the first group were treated with the same size of pure hydrogels. The second group received a bandage with the same size of hydrogel/extract/4 wt% nZ (hydrogel NZE). The third group was treated with chamomile extract, and the fourth group was considered as control without taking any medicament. Finally, the dressings were applied on the chronic refractory ulcers of five patients. RESULTS: After successful surface morphology and cytocompatibility tests, the animal study was carried out. There was a significant difference between starch/extract/4 wt% nZ and other groups on wound size decrement after day 7 (P < 0.05). At the clinical pilot study step, the refractory ulcers of all five patients were healed without any hypersensitivity reaction. CONCLUSION: Starch-based hydrogel/zeolite dressings may be safe and effective for chronic refractory ulcers. PMID- 29026428 TI - Evaluation of the physiological activity of venom from the Eurasian water shrew Neomys fodiens. AB - BACKGROUND: Animal toxins can have medical and therapeutic applications. Principally, toxins produced by insects, arachnids, snakes and frogs have been characterized. Venomous mammals are rare, and their venoms have not been comprehensively investigated. Among shrews, only the venom of Blarina brevicauda has been analysed so far, and blarina toxin has been proven to be its main toxic component. It is assumed that Neomys fodiens employs its venom to hunt larger prey. However, the toxic profile, properties and mode of action of its venom are largely unknown. Therefore, we analysed the cardio-, myo- and neurotropic properties of N. fodiens venom and saliva of non-venomous Sorex araneus (control tests) in vitro in physiological bioassays carried out on two model organisms: beetles and frogs. For the first time, we fractionated N. fodiens venom and S. araneus saliva by performing chromatographic separation. Next, the properties of selected compounds were analysed in cardiotropic bioassays in the Tenebrio molitor heart. RESULTS: The venom of N. fodiens caused a high decrease in the conduction velocity of the frog sciatic nerve, as well as a significant decrease in the force of frog calf muscle contraction. We also recorded a significant decrease in the frog heart contractile activity. Most of the selected compounds from N. fodiens venom displayed a positive chronotropic effect on the beetle heart. However, one fraction caused a strong decrease in the T. molitor heart contractile activity coupled with a reversible cardiac arrest. We did not observe any responses of the insect heart and frog organs to the saliva of S. araneus. Preliminary mass spectrometry analysis revealed that calmodulin-like protein, thymosin beta-10, hyaluronidase, lysozyme C and phospholipase A2 are present in the venom of N. fodiens, whereas thymosin beta4, lysozyme C and beta-defensin are present in S. araneus saliva. CONCLUSION: Our results showed that N. fodiens venom has stronger paralytic properties and lower cardioinhibitory activity. Therefore, it is highly probable that N. fodiens might use its venom as a prey immobilizing agent. We also confirmed that S. araneus is not a venomous mammal because its saliva did not exhibit any toxic effects. PMID- 29026430 TI - Gestational, perinatal, and postnatal factors that interfere with practice of exclusive breastfeeding by six months after birth. AB - BACKGROUND: Despite evidences indicating the superiority of breastfeeding and recent advances in the indicators of breastfeeding in Brazil, exclusive breastfeeding (EBF) during the first six months after birth continues to be an infrequent practice in the country. The objective of the present study was to determine which gestational, perinatal, and postnatal factors of the mother-baby dyad might be associated with the cessation of EBF by six months after birth. METHODS: Data were collected at the rooming-in facility of the Reference Center of Women's Health of Ribeirao Preto-Mater (CRSM-Mater) during the postpartum period (24 to 72 h after birth) from December 2012 to April 2013 and by telephone contact between the researcher and participating mothers by six months after birth. Questionnaires were applied to collect data, such as the practice of EBF in the last 24 h in the sixth month after birth. The hierarchical theoretical model was proposed and data were analyzed statistically by log-binomial regression models using SAS 9.3. RESULTS: The study involved 283 mother-baby dyads in which the mother evaluated did not present pregnancy-puerperal complications that could impede breastfeeding and confirmed the interest in breastfeeding her child. After the telephone contact in the exact sixth month after the birth of each participating baby, 84.8% of the participating mothers reported that they were no longer exclusively breastfeeding their babies. After statistical analysis, we found that there was a significant association between cessation of EBF and maternal report of previous experience with EBF for one month (0.91, 95% CI 0.81, 0.99) and six months (0.81; 95% CI 0.68, 0.94). These practices were associated with the maintenance of EBF and, even after adjustment for maternal socio-demographic variables, this association was maintained (0.85; 95% CI 0.73, 0.99). Thus, there is a greater chance of practicing and maintaining EBF by six months after birth when mother had previous experience with it. CONCLUSION: The identification of the risk variables associated with cessation of EBF by six months postpartum, such as previous experience with exclusive breastfeeding, may contribute to the effectiveness of EBF intervention and support measures during the first six months after birth. PMID- 29026431 TI - Enablers and barriers to success among mothers planning to exclusively breastfeed for six months: a qualitative prospective cohort study in KwaZulu-Natal, South Africa. AB - BACKGROUND: Exclusive breastfeeding (EBF) for the first six months of life is the most important determinant of child health and development, and is the recommended feeding practice for all mothers. However, EBF rates remain low in South Africa. This study aimed to prospectively explore enablers or barriers to success among mothers who planned to exclusively breastfeed their infants for the first six months of life, in KwaZulu-Natal, South Africa. METHODS: A qualitative, longitudinal cohort design was adopted. Women were recruited during pregnancy from the catchment area of two hospitals (one urban and one rural) and purposively sampled to include working women, teenagers, and HIV positive pregnant women. This analysis relates to 22 women, from 30 women recruited, who planned antenatally to exclusively breastfeed for six months. These mothers were interviewed monthly for six months postpartum. Infant feeding practices were explored at each visit using in-depth interviews and 24 h feeding recall assessment. Framework analysis was conducted for qualitative data, and quantitative data analyzed using descriptive statistics. RESULTS: A total of 125 interviews were conducted between November 2015 and October 2016. Among 22 mothers who planned to exclusively breastfeed for six months, 17 reported adding other food or fluids before six months, and five reported exclusively breastfeeding successfully for the first six months. Key themes showed that all mothers relied strongly on health workers' infant feeding advice and support. All mothers experienced challenges regardless of whether they succeeded in EBF, including inappropriate advice from health workers, maternal-baby issues, pressure from family members and returning to school and work. However, those who were successful at EBF for six months reported that high breastfeeding self efficacy, HIV status and cultural meaning attached to breastfeeding were underlying factors for success. CONCLUSION: Health workers are key players in providing infant feeding information and support, yet some health workers give mothers infant feeding advice that is not supportive of EBF. Strategies to improve health workers' competency in infant feeding counselling are needed to better prepare pregnant women to overcome common breastfeeding challenges and build mothers' confidence and self-efficacy, thus increasing EBF rates. PMID- 29026429 TI - Markers of neuroprotection of combined EPA and DHA provided by fish oil are higher than those of EPA (Nannochloropsis) and DHA (Schizochytrium) from microalgae oils in Wistar rats. AB - BACKGROUND: To overcome the current overexploitation of fish rich in n-3 long chain polyunsaturated fatty acids (LCPUFA), microalgae have become a promising marine lipid source. The purpose of this study was to assess eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3), isolated or combined from distinct marine origins, on the promotion of neuroprotective effects. METHODS: The experiment lasted for 10 weeks and involved 32 Wistar rats, divided into 4 diets (n = 8): a diet rich in milk fat was taken as control (Milk Fat) and compared to n-3 LCPUFA enriched diets, either in EPA + DHA form through fish oil (Fish Oil), or EPA through Nannochloropsis oil (Nanno), or DHA through Schizochytrium oil (Schyzo), while maintaining Milk Fat incorporation. RESULTS: Plasma lipid profile and dopamine levels were more beneficial in Fish Oil diet. In addition, n-3 LCPUFA incorporation was found increased in liver and erythrocytes from Fish Oil fed rats, suggesting that fish oil is a better dietary source for fatty acids deposition in the organism than microalgae. The Forced Swimming Test revealed a positive behavioural action of EPA + DHA, in opposition to Milk Fat and Nanno diets, which had higher immobile times. mRNA levels of serotonin receptors, HT1A and HT2A along with CREB, the transmission factor for learning and memory, were higher in the hippocampus of rats fed n-3 LCPUFA diets comparative to Milk Fat. CONCLUSION: Taken together, the combination of EPA and DHA from fish oil can counteract the undesirable health effects of saturated fat based diets and benefit, in the long run, neurological function. PMID- 29026432 TI - Timely initiation of breastfeeding and its association with birth place in Ethiopia: a systematic review and meta-analysis. AB - BACKGROUND: Timely initiation of breastfeeding is defined as putting the newborn to the breast within 1 h of birth. In Ethiopia, different studies have been conducted to assess the prevalence of timely initiation of breastfeeding and associated factors. The findings of these studies were inconsistent and characterized by great variability. Therefore, the aim of this systematic review and meta-analysis was to estimate the pooled prevalence of timely initiation of breastfeeding and its association with birth place in Ethiopia using the available studies. METHODS: Databases, including PubMed, Google scholar, Science direct and Cochrane library were systematically searched. All original studies reporting the prevalence of timely initiation of breastfeeding in Ethiopia were considered. Two authors independently extracted all necessary data using a standardized data extraction format. STATA 11 statistical software was used to analyze the data. The Cochrane Q test statistics and I2 test were used to assess the heterogeneity between the studies. A random effect model was computed to estimate the pooled prevalence of timely initiation of breastfeeding. In addition, the associations between timely initiation of breastfeeding and place of birth were determined. RESULTS: Sixteen studies were finally included in the meta-analysis. The findings of this meta-analysis revealed that, the pooled prevalence of timely initiation of breastfeeding in Ethiopia was 61.4% (CI: 51.4, 71.5%). The study also indicated that rural mothers had lower rate of initiating breastfeeding within the first 1 h after delivery as compared to their urban counterparts. Additionally, mothers who gave birth at health institution were almost 2.11 times more likely to initiate breastfeeding within 1 h as compared to mothers who did not give birth at health institution. CONCLUSION: In this study, timely initiation of breastfeeding in Ethiopia was significantly low compared to the current global recommendation on breastfeeding. Women from rural area were less likely to initiate breastfeeding within 1 h as compared with women from urban areas. Mothers who give birth at health institution were more likely to initiate breastfeeding timely. PMID- 29026433 TI - An optimized method for high quality DNA extraction from microalga Prototheca wickerhamii for genome sequencing. AB - BACKGROUND: The complex cell wall structure of algae often precludes efficient extraction of their genetic material. The purpose of this study was to design a next-generation sequencing-suitable DNA isolation method for unicellular, achlorophyllous, yeast-like microalgae of the genus Prototheca, the only known plant pathogens of both humans and animals. The effectiveness of the newly proposed scheme was compared with five other, previously described methods, commonly used for DNA isolation from plants and/or yeasts, available either as laboratory-developed, in-house assays, based on liquid nitrogen grinding or different enzymatic digestion, or as commercially manufactured kits. RESULTS: All five, previously described, isolation assays yielded DNA concentrations lower than those obtained with the new method, averaging 16.15 +/- 25.39 vs 74.2 +/- 0.56 ng/uL, respectively. The new method was also superior in terms of DNA purity, as measured by A260/A280 (-0.41 +/- 4.26 vs 2.02 +/- 0.03), and A260/A230 (1.20 +/- 1.12 vs 1.97 +/- 0.07) ratios. Only the liquid nitrogen-based method yielded DNA of comparable quantity (60.96 +/- 0.16 ng/uL) and quality (A260/A280 = 2.08 +/- 0.02; A260/A230 = 2.23 +/- 0.26). Still, the new method showed higher integrity, which was best illustrated upon electrophoretic analysis. Genomic DNA of Prototheca wickerhamii POL-1 strain isolated with the protocol herein proposed was successfully sequenced on the Illumina MiSeq platform. CONCLUSIONS: A new method for DNA isolation from Prototheca algae is described. The method, whose protocol involves glass beads pulverization and cesium chloride (CsCl) density gradient centrifugation, was demonstrated superior over the other common assays in terms of DNA quantity and quality. The method is also the first to offer the possibility of preparation of DNA template suitable for whole genome sequencing of Prototheca spp. PMID- 29026434 TI - A plant-based chemical genomics screen for the identification of flowering inducers. AB - BACKGROUND: Floral timing is a carefully regulated process, in which the plant determines the optimal moment to switch from the vegetative to reproductive phase. While there are numerous genes known that control flowering time, little information is available on chemical compounds that are able to influence this process. We aimed to discover novel compounds that are able to induce flowering in the model plant Arabidopsis. For this purpose we developed a plant-based screening platform that can be used in a chemical genomics study. RESULTS: Here we describe the set-up of the screening platform and various issues and pitfalls that need to be addressed in order to perform a chemical genomics screening on Arabidopsis plantlets. We describe the choice for a molecular marker, in combination with a sensitive reporter that's active in plants and is sufficiently sensitive for detection. In this particular screen, the firefly Luciferase marker was used, fused to the regulatory sequences of the floral meristem identity gene APETALA1 (AP1), which is an early marker for flowering. Using this screening platform almost 9000 compounds were screened, in triplicate, in 96-well plates at a concentration of 25 uM. One of the identified potential flowering inducing compounds was studied in more detail and named Flowering1 (F1). F1 turned out to be an analogue of the plant hormone Salicylic acid (SA) and appeared to be more potent than SA in the induction of flowering. The effect could be confirmed by watering Arabidopsis plants with SA or F1, in which F1 gave a significant reduction in time to flowering in comparison to SA treatment or the control. CONCLUSIONS: In this study a chemical genomics screening platform was developed to discover compounds that can induce flowering in Arabidopsis. This platform was used successfully, to identify a compound that can speed-up flowering in Arabidopsis. PMID- 29026435 TI - HAlign-II: efficient ultra-large multiple sequence alignment and phylogenetic tree reconstruction with distributed and parallel computing. AB - BACKGROUND: Multiple sequence alignment (MSA) plays a key role in biological sequence analyses, especially in phylogenetic tree construction. Extreme increase in next-generation sequencing results in shortage of efficient ultra-large biological sequence alignment approaches for coping with different sequence types. METHODS: Distributed and parallel computing represents a crucial technique for accelerating ultra-large (e.g. files more than 1 GB) sequence analyses. Based on HAlign and Spark distributed computing system, we implement a highly cost efficient and time-efficient HAlign-II tool to address ultra-large multiple biological sequence alignment and phylogenetic tree construction. RESULTS: The experiments in the DNA and protein large scale data sets, which are more than 1GB files, showed that HAlign II could save time and space. It outperformed the current software tools. HAlign-II can efficiently carry out MSA and construct phylogenetic trees with ultra-large numbers of biological sequences. HAlign-II shows extremely high memory efficiency and scales well with increases in computing resource. CONCLUSIONS: THAlign-II provides a user-friendly web server based on our distributed computing infrastructure. HAlign-II with open-source codes and datasets was established at http://lab.malab.cn/soft/halign. PMID- 29026436 TI - Relationship between menstruation status and work conditions in Japan. AB - BACKGROUND: Menstrual problems can significantly impact daily and work life. In reaction to a shrinking population, the Japanese government is encouraging more women to participate in the labor force. Actual success in achieving this aim, however, is limited. Specifically, participation in the workforce by women during their reproductive years is impacted by their health, which involves not only work conditions, but also traditional family circumstances. Therefore, it is important to further assess and gather more information about the health status of women who work during their reproductive years in Japan. Specifically, women's health can be represented by menstruation status, which is a pivotal indicator. In this study, we assessed the association between short rest periods in work intervals and menstruation and other health status indicators among female workers in Japan. METHODS: Study participants were recruited from the alumnae of a university, which provided a uniform educational level. All 9864 female alumnae were asked to join the survey and 1630 (17%) accepted. The final sample of study participants (n = 505) were aged 23-43 years, had maintained the same job status for at least 1 year, and were not shift workers, had no maternal status, and did not lack any related information. The participants were divided into two groups according to interval time, with 11 h between end of work and resumption of daily work as a benchmark. This interval time was based on EU regulations and the goal set by the government of Japan. Health outcomes included: menstrual cycle, dysmenorrhoea symptoms, anxiety regarding health, and satisfaction in terms of health. Multiple logistic regression analyses were conducted to estimate the odds ratios (ORs) and 95% confidence intervals (CIs) for health indexes in association with interval time by adjusting for confounding variables that included both psychosocial and biological factors. RESULTS: We compared the health status of women in the workforce with and without a sufficient interval time of 11 h/day. Workers who had a short interval time had a significantly higher prevalence of anxiety about health and dissatisfaction with their health. For menstruation status, only abnormal menstruation cycles were observed more often among workers in the short interval group than those of the long interval group. However, this association disappeared when biological confounding factors were adjusted in a multivariable regression model. Dysmenorrhea symptoms did not show a statistically significant association with short interval time. CONCLUSIONS: This study found a significant association between a short interval time of less than 11 h/day and subjective health indicators and the menstrual health status of women in the workforce. Menstrual health was more affected by biological factors than social psychological factors. A long work time and short interval time could increase worker anxiety and dissatisfaction and may deteriorate the menstrual cycle. PMID- 29026437 TI - Impact of a new medical network system on the efficiency of treatment for eating disorders in Japan: a retrospective observational study. AB - BACKGROUND: In Japan, patients generally have free access to any hospital or clinic. This could lead to reduced efficiency in the treatment for eating disorders (EDs) because there are only a limited number of doctors who can treat ED patients. The objectives of this study were to examine the efficiency of a new trial system for consultation and appointments, a medical community network (MCN), in outpatient treatment for EDs. MCN schedules appointments for the first visit only by referral from another medical institution, not by patients themselves. METHODS: We analyzed the data of 342 outpatients (mean age = 28.9 +/- 9.9 years; 328 female and 14 male) who visited the ED clinic at the University of Tokyo Hospital for the first time between January 2009 and July 2012 to investigate possible differences in treatment efficacy between the new (MCN+) system and the conventional (MCN-) system, which accepts reservations directly from patients. RESULTS: The no-show rate for MCN+ patients (0.8%) was significantly lower than that for the MCN- group (17.8%) (p < 0.001). MCN+ patients had a significantly shorter waiting period (8.4 days) for the first visit compared to MCN- patients (35.5 days, p < 0.001). In addition, the MCN+ group had a much higher rate of successive visits to the clinic (p < 0.05). CONCLUSION: This new consultation system using a medical community network provided more efficient treatment for ED than did the appointment system in which the patients made their appointments by themselves. PMID- 29026438 TI - Mental health assessments in refugees and asylum seekers: evaluation of a tablet assisted screening software. AB - BACKGROUND: Mental health problems resulting from persecution and forced migration are very common among refugees and asylum seekers and evolve into a major public health challenge in hosting societies. Language barriers often prevent timely access to appropriate health care, leading to chronic trajectories and abortive social integration. Tools for multilingual screening and assessment could be of great benefit for this particularly vulnerable population as well as for policy makers. This study aimed at testing the reliability, feasibility and usability of the Multi-Adaptive Psychological Screening Software (MAPSS), a newly developed Audio Computer-Assisted Self-Interview Software (ACASI) for touchscreen devices, for screening purposes in a clinical setting. METHODS: In a randomized cross-over design including both MAPSS and paper-pencil clinician-administered interviews, 30 treatment-seeking refugees completed clinical measures and a feasibility questionnaire to rate the user interface of MAPSS. Five professionals performed given tasks in MAPSS and completed usability questionnaires for the administration interface. RESULTS: Results showed no differences between the two assessment modalities with regard to symptom scores. The findings suggest good feasibility and usability of MAPSS in traumatized refugees. The administration via MAPSS was significantly shorter than the paper-pencil interview. CONCLUSION: MAPSS may be a cost-effective, flexible and valid alternative to interpreter based psychometric screening and assessment. PMID- 29026439 TI - Priority setting for mental health research in Chile. AB - BACKGROUND: Scientific knowledge is a fundamental tool for making informed health policy decisions, but the link between health research and public policy decision making is often missing. This study aims to identify and prioritize a national set of research gaps in mental health. METHODS: A multi-approach method to identify gaps in knowledge was developed, including (1) document analysis and identification of possible research questions, (2) interviews to Ministry of Health key informants, (3) focus groups with different stakeholders, and (4) a web consultation addressed to academics. The identified gaps were translated to a standardized format of research questions. Criteria for prioritization were extracted from interviews and focus groups. Then, a team of various professionals applied them for scoring each question research. FINDINGS: Fifty-four people participated in the knowledge gaps identification process through an online consultation (n = 23) and focus groups (n = 18). Prioritization criteria identified were: extent of the knowledge gap, size of the objective population, potential benefit, vulnerability, urgency and applicability. 155 research questions were prioritized, of which 44% were related to evaluation of systems and/or health programs, and 26% to evaluation of interventions, including questions related to cost-effectiveness. 30% of the research questions came from the online consultation, and 36% from key informants. Users groups contributed with 10% of total research questions. CONCLUSION: A final priority setting for mental health research was reached, making available for authorities and research agencies a list of 155 research questions ordered by relevance. The experience documented here could serve to other countries interested in developing a similar process. PMID- 29026440 TI - Translating mental health diagnostic and symptom terminology to train health workers and engage patients in cross-cultural, non-English speaking populations. AB - Although there are guidelines for transcultural adaptation and validation of psychometric tools, similar resources do not exist for translation of diagnostic and symptom terminology used by health professionals to communicate with one another, their patients, and the public. The issue of translation is particularly salient when working with underserved, non-English speaking populations in high income countries and low- and middle-income countries. As clinicians, researchers, and educators working in cross-cultural settings, we present four recommendations to avoid common pitfalls in these settings. We demonstrate the need for: (1) harmonization of terminology among clinicians, educators of health professionals, and health policymakers; (2) distinction in terminology used among health professionals and that used for communication with patients, families, and the lay public; (3) linkage of symptom assessment with functional assessment; and (4) establishment of a culture of evaluating communication and terminology for continued improvement. PMID- 29026441 TI - Modeling the architecture of the regulatory system controlling methylenomycin production in Streptomyces coelicolor. AB - BACKGROUND: The antibiotic methylenomycin A is produced naturally by Streptomyces coelicolor A3(2), a model organism for streptomycetes. This compound is of particular interest to synthetic biologists because all of the associated biosynthetic, regulatory and resistance genes are located on a single cluster on the SCP1 plasmid, making the entire module easily transferable between different bacterial strains. Understanding further the regulation and biosynthesis of the methylenomycin producing gene cluster could assist in the identification of motifs that can be exploited in synthetic regulatory systems for the rational engineering of novel natural products and antibiotics. RESULTS: We identify and validate a plausible architecture for the regulatory system controlling methylenomycin production in S. coelicolor using mathematical modeling approaches. Model selection via an approximate Bayesian computation (ABC) approach identifies three candidate model architectures that are most likely to produce the available experimental data, from a set of 48 possible candidates. Subsequent global optimization of the parameters of these model architectures identifies a single model that most accurately reproduces the dynamical response of the system, as captured by time series data on methylenomycin production. Further analyses of variants of this model architecture that capture the effects of gene knockouts also reproduce qualitative experimental results observed in mutant S. coelicolor strains. CONCLUSIONS: The mechanistic mathematical model developed in this study recapitulates current biological knowledge of the regulation and biosynthesis of the methylenomycin producing gene cluster, and can be used in future studies to make testable predictions and formulate experiments to further improve our understanding of this complex regulatory system. PMID- 29026442 TI - Variation across a wheat genetic diversity panel for saccharification of hydrothermally pretreated straw. AB - BACKGROUND: Wheat straw forms an important, reliable source of lignocellulosic biomass for use in second-generation ethanol production. However, there is limited understanding of the variation in quality of straw from current breeding cultivars, and studies on such variation have generally employed suboptimal pretreatments. There is also a degree of confusion regarding phenotypic characteristics relevant to optimising the enzymatic saccharification of cellulose after suitable pretreatments for biorefining compared with those which determine good ruminant digestibility. The aim of this study has been to (a) evaluate and compare the levels of glucose enzymatically released from straw obtained from 89 cultivars of winter wheat after optimised hydrothermal pretreatments and (b) identify the underlying phenotypic characteristics relevant to enhanced glucose production with special reference to the ratios of constituent tissue types. RESULTS: Optimised pretreatment involved hydrothermal extraction at 210 degrees C for 10 min. Using excess cellulases, quantitative saccharification was achieved within 24 h. The amount of glucose released ranged from 192 to 275 mg/g. The extent of glucose release was correlated with (a) the level of internode tissue (R = 0.498; p = 6.84 * 10-7), (b) stem height (R = 0.491; p = 1.03 * 10-6), and (c) chemical characteristics particular to stem tissues including higher levels of cellulose (R = 0.552; p = 2.06 * 10-8) and higher levels of lignin R = 0.494; p = 8.67 * 10-7. CONCLUSIONS: In order to achieve maximum yields of cellulosic glucose for second-generation ethanol production, a predisposition for wheat to produce cellulose-enriched internode stem tissue, particularly of longer length, would be beneficial. This contrasts with the ideotype for ruminant nutrition, in which an increased proportion of leaf tissue is preferable. PMID- 29026443 TI - Neutrophil killing of Staphylococcus aureus in diabetes, obesity and metabolic syndrome: a prospective cellular surveillance study. AB - BACKGROUND: Obesity, metabolic syndrome (MetS), and diabetes are frequent in surgical populations and can enhance susceptibility to postoperative surgical site infections. Reduced neutrophil function has been linked with diabetes and risk of Staphylococcus aureus infection. Therefore, neutrophil function in diabetic and obese subjects (+/- MetS) was assessed in this prospective serological and cellular surveillance study to determine whether vaccines administered to protect against infections after surgery could be effective in these populations. METHODS: Neutrophil function (chemotaxis, phagocytosis, and opsonophagocytic killing of S. aureus) was assessed in subjects classified according to diabetes status, body mass index, and presence/absence of MetS. Neutrophils were characterized within functional subsets by flow cytometry. A serologic assay was used to measure baseline antibody presence to each antigen in SA4Ag: capsular polysaccharide (CP) type 5, CP8, recombinant mutant Clumping factor A (rmClfA), and recombinant Manganese transport protein C (rMntC). RESULTS: Neutrophil function was similar for comorbid and healthy cohorts, with no significant between-group differences in cell counts, migration, phagocytosis ability, neutrophil subset proportions, and S. aureus killing ability when neutrophils were isolated 3-6 months apart (Visit 1 [n = 90] and Visit 2 [n = 70]) and assessed. Median pre-existing antibody titers to CP5, CP8, and rmClfA were comparable for all cohorts (insufficient subjects with rMntC titers for determination). CONCLUSIONS: MetS, diabetes, and obesity do not impact in vitro neutrophil function with regard to S. aureus killing, suggesting that if an effective S. aureus vaccine is developed it may be effective in individuals with these comorbidities. PMID- 29026444 TI - Association of meal frequency with metabolic syndrome in Korean adults: from the Korea National Health and Nutrition Examination Survey (KNHANES). AB - BACKGROUND: Although previous studies have established a close relationship between caloric intake and metabolic syndrome, there is limited research exploring the impact of meal frequency adjusted by caloric intake on metabolic syndrome (MetS). OBJECTIVE: To evaluate the association of meal frequency and MetS after adjusting for confounding factors including caloric intake in Korean men and women. METHODS: We analyzed the national representative data of a total 12,389 adults (5171 men, 7218 women) from the Korean National Health and Nutrition Examination Survey (KNHANES) 2010-2012. Subjects were categorized as eating 3 meals/day (MF3) or 2 or fewer meals/day (MF <= 2). Daily caloric intake was calculated using CAN-Pro 4.0 (The Korean Nutrition Society, Seoul, Korea). RESULTS: The prevalence of components of MetS differed significantly according to meal frequency in both men and women. In an unadjusted analysis, the prevalence of MetS in women was significantly higher in the MF3 group than the MF <= 2 group (27.5% vs. 17.8%, P < 0.001), whereas the prevalence of MetS in men did not differ between the MF3 and MF <= 2 groups (24.6% vs. 22.7%, P = 0.281). However, after adjusting for age, caloric intake, smoking status, alcohol consumption, physical activity, income, and education level, men in the MF <= 2 group had an increased risk of metabolic syndrome compared to men in the MF3 group (OR = 1.37, 95%, CI = 1.12-1.67). On the other hand, meal frequency did not affect the risk of metabolic syndrome in women after adjusting for confounding factors including caloric intake (OR = 1.09, 95%, CI = 0.90-1.31). CONCLUSIONS: This study suggests that lower meal frequency adjusted for caloric intake, physical activity, age, smoking, alcohol, income, and education may be associated with increased risk of MetS in Korean men. PMID- 29026445 TI - Viral communities of the human gut: metagenomic analysis of composition and dynamics. AB - BACKGROUND: The numerically most abundant biological entities on Earth are viruses. Vast populations prey on the cellular microbiota in all habitats, including the human gut. MAIN BODY: Here we review approaches for studying the human virome, and some recent results on movement of viral sequences between bacterial cells and eukaryotic hosts. We first overview biochemical and bioinformatic methods, emphasizing that specific choices in the methods used can have strong effects on the results obtained. We then review studies characterizing the virome of the healthy human gut, which reveal that most of the viruses detected are typically uncharacterized phage - the viral dark matter - and that viruses that infect human cells are encountered only rarely. We then review movement of phage between bacterial cells during antibiotic treatment. Here a radical proposal for extensive movement of antibiotic genes on phage has been challenged by a careful reanalysis of the metagenomic annotation methods used. We then review two recent studies of movement of whole phage communities between human individuals during fecal microbial transplantation, which emphasize the possible role of lysogeny in dispersal. SHORT CONCLUSION: Methods for studying the human gut virome are improving, yielding interesting data on movement of phage genes between cells and mammalian host organisms. However, viral populations are vast, and studies of their composition and function are just beginning. PMID- 29026446 TI - DNA methylation links genetics, fetal environment, and an unhealthy lifestyle to the development of type 2 diabetes. AB - Type 2 diabetes is a complex trait with both environmental and hereditary factors contributing to the overall pathogenesis. One link between genes, environment, and disease is epigenetics influencing gene transcription and, consequently, organ function. Genome-wide studies have shown altered DNA methylation in tissues important for glucose homeostasis including pancreas, liver, skeletal muscle, and adipose tissue from subjects with type 2 diabetes compared with nondiabetic controls. Factors predisposing for type 2 diabetes including an adverse intrauterine environment, increasing age, overweight, physical inactivity, a family history of the disease, and an unhealthy diet have all shown to affect the DNA methylation pattern in target tissues for insulin resistance in humans. Epigenetics including DNA methylation may therefore improve our understanding of the type 2 diabetes pathogenesis, contribute to development of novel treatments, and be a useful tool to identify individuals at risk for developing the disease. PMID- 29026449 TI - Emotional impact on the results of BRCA1 and BRCA2 genetic test: an observational retrospective study. AB - BACKGROUND: BRCA1 and BRCA2 mutations are associated with a higher risk of breast and ovarian tumors. This study evaluated the emotional states of women 1 month after having received the results of the genetic test and assessed eventual associations with the type of outcome, personal/familiar disease history and major socio-demographic variables. METHODS: The study, an observational retrospective one, involved 91 women, evaluated 1 month after receiving their results. Patients were administered the Hospital Anxiety and Depression Scale, the Profile of Mood States and emotional Thermometers. RESULTS: Anxiety was significantly higher than depression (p < 0.001), and 21.3% and 21.3% of the sample were, respectively, possible and probable cases for anxiety, whereas 13.5% and 10.1% were possible and probable cases for depression. Within the six mood states, Confusion-Bewilderment (M = 48.5) was the lowest, whereas Fatigue-Inertia (M = 52.3) was the highest. Differences were recorded within the ten assessed emotions too. Being a proband/nonproband and being or not a cancer patient were associated with many tested variables. CONCLUSION: The psycho-emotional screening of women undertaking genetic counseling is relevant and should cover a large range of dimensions. PMID- 29026448 TI - Newborn genome-wide DNA methylation in association with pregnancy anxiety reveals a potential role for GABBR1. AB - BACKGROUND: There is increasing evidence for the role of prenatal stress in shaping offspring DNA methylation and disease susceptibility. In the current study, we aimed to identify genes and pathways associated with pregnancy anxiety using a genome-wide DNA methylation approach. METHODS: We selected 22 versus 23 newborns from our Prenatal Early Life Stress (PELS) cohort, exposed to the lowest or highest degree of maternal pregnancy anxiety, respectively. Cord blood genome wide DNA methylation was assayed using the HumanMethylation450 BeadChip (HM450, n = 45) and candidate gene methylation using EpiTYPER (n = 80). Cortisol levels were measured at 2, 4, and 12 months of age to test infant stress system (re)activity. RESULTS: Data showed ten differentially methylated regions (DMR) when comparing newborns exposed to low versus high pregnancy anxiety scores. We validated a top DMR in the GABA-B receptor subunit 1 gene (GABBR1) revealing the association with pregnancy anxiety particularly in male newborns (most significant CpG Pearson R = 0.517, p = 0.002; average methylation Pearson R = 0.332, p = 0.039). Cord blood GABBR1 methylation was associated with infant cortisol levels in response to a routine vaccination at 4 months old. CONCLUSIONS: In conclusion, our results show that pregnancy anxiety is associated with differential DNA methylation patterns in newborns and that our candidate gene GABBR1 is associated with infant hypothalamic-pituitary-adrenal axis response to a stressor. Our findings reveal a potential role for GABBR1 methylation in association with stress and provide grounds for further research. PMID- 29026451 TI - Genomic insights into the thiamin metabolism of Paenibacillus thiaminolyticus NRRL B-4156 and P. apiarius NRRL B-23460. AB - Paenibacillus thiaminolyticus is the model organism for studying thiaminase I, an enigmatic extracellular enzyme. Originally isolated from the feces of clinical patients suffering from thiamin deficiency, P. thiaminolyticus has been implicated in thiamin deficiencies in humans and other animals due to its ability to produce this thiamin-degrading enzyme. Its close relative, P. apiarius, also produces thiaminase I and was originally isolated from dead honeybee larvae, though it has not been reported to be a honeybee pathogen. We generated draft genomes of the type strains of both species, P. thiaminolyticus NRRL B-4156 and P. apiarius NRRL B-23460, to deeply explore potential routes of thiamin metabolism. We discovered that the thiaminase I gene is located in a highly conserved operon with thiamin biosynthesis and salvage genes, as well as genes involved in the biosynthesis of the antibiotic bacimethrin. Based on metabolic pathway predictions, P. apiarius NRRL B-23460 has the genomic capacity to synthesize thiamin de novo using a pathway that is rarely seen in bacteria, but P. thiaminolyticus NRRL B-4156 is a thiamin auxotroph. Both genomes encode importers for thiamin and the pyrimidine moiety of thiamin, as well as enzymes to synthesize thiamin from pyrimidine and thiazole. PMID- 29026450 TI - Incorporating Child Maltreatment Training into Medical School Curricula. AB - The Child Advocacy Studies Training (CAST) program has been implemented at the graduate and undergraduate levels, but has not been incorporated in medical school training. This study examines the efficacy of a modified version of the CAST program that is tailored to meet the educational needs of medical students. A total sample of 75 first year medical students (57 at 6 month follow-up) participated in the study and completed analogue vignettes depicting cases of maltreatment. It was hypothesized that, relative to the comparison group, students who completed CAST training would demonstrate better accuracy at identifying and reporting maltreatment. Results indicated that CAST students demonstrated improved accuracy at the conclusion of the CAST program and 6 months later. PMID- 29026452 TI - Leveraging public health's participation in a Health Information Exchange to improve communicable disease reporting. AB - BACKGROUND: Infectious diseases can appear and spread rapidly. Timely information about disease patterns and trends allows public health agencies to quickly investigate and efficiently contain those diseases. But disease case reporting to public health has traditionally been paper-based, resulting in somewhat slow, burdensome processes. Fortunately, the expanding use of electronic health records and health information exchanges has created opportunities for more rapid, complete, and easily managed case reporting and investigation. To assess how this new service might impact the efficiency and quality of a public health agency's case investigations, we compared the timeliness of usual case investigation to that of case investigations based on case report forms that were partially pre populated with electronic data. INTERVENTION: Between September 2013-March 2014, chlamydia disease report forms for certain clinics in Indianapolis were electronically pre-populated with clinical, lab and patient data available through the Indiana Health Information Exchange, then provided to the patienta?TMs doctor. Doctors could then sign the form and deliver it to public health for investigation and population-level disease tracking. Methods: We utilized a novel matched case analysis of timeliness changes in receipt and processing of communicable disease report forms. Each Chlamydia cases reported with the pre-populated form were matched to cases reported in usual ways. We assessed the time from receipt of the case at the public health agency: 1) inclusion of the case into the public health surveillance system and 2) to close to case. A hierarchical random effects model was used to compare mean difference in each outcome between the target cases and the matched cases, with random intercepts for case. RESULTS: Twenty-one Chlamydia cases were reported to the public health agency using the pre-populated form. Sixteen of these pre-populated form cases were matched to at least one other case, with a mean of 23 matches per case. The mean Reporting Lag for the pre-populated form cases was 2.5 days, which was 2.7 days shorter than the mean Reporting Lag for the matched controls (p = <0.001). The mean time to close a pre-populated form case was 4.7 days, which was 0.2 days shorter than time to close for the matched controls (p = 0.792). CONCLUSIONS: Use of pre-populated forms significantly decreased the time it took for the local public health agency to begin documenting and closing chlamydia case investigations. Thoughtful use of electronic health data for case reporting may decrease the per-case workload of public health agencies, and improve the timeliness of information about the pattern and spread of disease. PMID- 29026447 TI - Epigenome alterations in aortic valve stenosis and its related left ventricular hypertrophy. AB - Aortic valve stenosis is the most common cardiac valve disease, and with current trends in the population demographics, its prevalence is likely to rise, thus posing a major health and economic burden facing the worldwide societies. Over the past decade, it has become more than clear that our traditional genetic views do not sufficiently explain the well-known link between AS, proatherogenic risk factors, flow-induced mechanical forces, and disease-prone environmental influences. Recent breakthroughs in the field of epigenetics offer us a new perspective on gene regulation, which has broadened our perspective on etiology of aortic stenosis and other aortic valve diseases. Since all known epigenetic marks are potentially reversible this perspective is especially exciting given the potential for development of successful and non-invasive therapeutic intervention and reprogramming of cells at the epigenetic level even in the early stages of disease progression. This review will examine the known relationships between four major epigenetic mechanisms: DNA methylation, posttranslational histone modification, ATP-dependent chromatin remodeling, and non-coding regulatory RNAs, and initiation and progression of AS. Numerous profiling and functional studies indicate that they could contribute to endothelial dysfunctions, disease-prone activation of monocyte-macrophage and circulatory osteoprogenitor cells and activation and osteogenic transdifferentiation of aortic valve interstitial cells, thus leading to valvular inflammation, fibrosis, and calcification, and to pressure overload-induced maladaptive myocardial remodeling and left ventricular hypertrophy. This is especcialy the case for small non-coding microRNAs but was also, although in a smaller scale, convincingly demonstrated for other members of cellular epigenome landscape. Equally important, and clinically most relevant, the reported data indicate that epigenetic marks, particularly certain microRNA signatures, could represent useful non-invasive biomarkers that reflect the disease progression and patients prognosis for recovery after the valve replacement surgery. PMID- 29026453 TI - Modeling and Forecasting Influenza-like Illness (ILI) in Houston, Texas Using Three Surveillance Data Capture Mechanisms. AB - Objective The objective was to forecast and validate prediction estimates of influenza activity in Houston, TX using four years of historical influenza-like illness (ILI) from three surveillance data capture mechanisms. Background Using novel surveillance methods and historical data to estimate future trends of influenza-like illness can lead to early detection of influenza activity increases and decreases. Anticipating surges gives public health professionals more time to prepare and increase prevention efforts. Methods Data was obtained from three surveillance systems, Flu Near You, ILINet, and hospital emergency center (EC) visits, with diverse data capture mechanisms. Autoregressive integrated moving average (ARIMA) models were fitted to data from each source for week 27 of 2012 through week 26 of 2016 and used to forecast influenza-like activity for the subsequent 10 weeks. Estimates were then compared to actual ILI percentages for the same period. Results Forecasted estimates had wide confidence intervals that crossed zero. The forecasted trend direction differed by data source, resulting in lack of consensus about future influenza activity. ILINet forecasted estimates and actual percentages had the least differences. ILINet performed best when forecasting influenza activity in Houston, TX. Conclusion Though the three forecasted estimates did not agree on the trend directions, and thus, were considered imprecise predictors of long-term ILI activity based on existing data, pooling predictions and careful interpretations may be helpful for short term intervention efforts. Further work is needed to improve forecast accuracy considering the promise forecasting holds for seasonal influenza prevention and control, and pandemic preparedness. PMID- 29026455 TI - Interactive visualization of public health indicators to support policymaking: An exploratory study. AB - : The purpose of this study is to examine the use of interactive visualizations to represent data/information related to social determinants of health and public health indicators, and to investigate the benefits of such visualizations for health policymaking. METHODS: The study developed a prototype for an online interactive visualization tool that represents the social determinants of health. The study participants explored and used the tool. The tool was evaluated using the informal user experience evaluation method. This method involves the prospective users of a tool to use and play with it and their feedback to be collected through interviews. RESULTS: Using visualizations to represent and interact with health indicators has advantages over traditional representation techniques that do not allow users to interact with the information. Communicating healthcare indicators to policymakers is a complex task because of the complexity of the indicators, diversity of audiences, and different audience needs. This complexity can lead to information misinterpretation, which occurs when users of the health data ignore or do not know why, where, and how the data has been produced, or where and how it can be used. CONCLUSIONS: Public health policymaking is a complex process, and data is only one element among others needed in this complex process. Researchers and healthcare organizations should conduct a strategic evaluation to assess the usability of interactive visualizations and decision support tools before investing in these tools. Such evaluation should take into consideration the cost, ease of use, learnability, and efficiency of those tools, and the factors that influence policymaking. PMID- 29026454 TI - Opportunities and obstacles using a clinical decision support system for maternal care in Burkina Faso. AB - OBJECTIVE: Maternal and neonatal mortality is high in sub-Saharan Africa. To support Healthcare Workers (HCWs), a computerized decision support system (CDSS) was piloted at six rural maternal care units in Burkina Faso. During the two years of the study period, it was apparent from reports that the CDSS was not used regularly in clinical practice. This study aimed to explore the reasons why HCWs failed to use the CDSS. METHODS: A workshop, organized as group discussions and a plenary session, was performed with 13 participants to understand their experience with the CDSS and suggest improvements if pertinent. Workshop transcripts were analyzed thematically. Socio-demographic and usage patterns of the CDSS were examined by a questionnaire and analyzed descriptively. RESULTS: The participants reported that the contextual basic conditions for using the CDSS were not fulfilled. These included unreliable power supply, none user-friendly partograph, the CDSS was not integrated with workflow and staff lacked motivational incentives. Despite these limitations, the HCWs reported learning benefits from guidance and alerts in the CDSS. Using the CDSS enabled them to discover problems earlier as they learned to focus on symptoms to prevent harmful situations. CONCLUSION: The CDSS was not tailored to the needs and context of the users. The HCWs, defined their needs and suggested how the CDSS should be re designed. This suggests that the successful and regular usage of any CDSS in rural settings requires the involvement of users throughout the construction and pilot-testing phases and not only during the early prototype design period. PMID- 29026456 TI - Geographic Information Systems: Usability, Perception, and Preferences of Public Health Professionals. AB - BACKGROUND: Analyzing and visualizing health-related databases using Geographic Information Systems (GISs) becomes essential in controlling many public health problems. OBJECTIVES: To explore the perception and preferences of public health professionals (PHPs) about the usability of GISs in public health field. METHODS: For this scoping review, the investigators searched Medline Ovid, PubMed, IEEE, Scopus, and GeoBase databases. A total of 105 articles were identified. Nine articles met the inclusion criteria. RESULTS: Iterative evaluations, training, and involvement of GIS end users are productive in GIS usability. More methodologies are needed to support the validity of GIS usability studies. The exchange of GIS technology impacts public health policy and research positively. DISCUSSION: PHPs are aware of the use of GISs in the public health field, and the exchange of visualized health data in determining inequalities and inaccessibility issues. CONCLUSION: GISs are essential to control public health problems, if the related health datasets are analyzed carefully and if the mapping reports are extensively evaluated and interpreted. PMID- 29026457 TI - Applications of information and communications technologies to public health: A scoping review using the MeSH term: "public health informatics". AB - OBJECTIVE: To investigate the public health domains, key informatics concepts, and information and communications technologies (ICTs) applied in articles that are tagged with the MeSH term "public health informatics" and primarily focus on applying ICTs to public health. MATERIALS AND METHODS: The MeSH term "public health informatics" was searched on MEDLINE-PubMed. The results of the search were then screened in two steps in order to only include articles about applying ICTs to public health problems. First, articles were screened based on their titles and abstracts. Second, a full-text review was conducted to ensure the relevance of the included articles. All articles were charted based on public health domain, information technology, article type, and informatics concept. RESULTS: 515 articles were included. Communicable disease monitoring (N=235), public health policy and research (N=201), and public health awareness (N=85) constituted the majority of the articles. Inconsistent results were found regarding the validity of syndromic surveillance and the effectiveness of PHI integration within the healthcare systems. DISCUSSION: PHI articles with an ICT focus cover a wide range of themes. Collectively, the included articles emphasized the need for further research in interoperability, data quality, appropriate data sources, accessible health information, and communication. The limitations of the study include:1) only one database was searched; 2) by using MeSH tags as a selection criterion, PHI articles without the "public health informatics" MeSH term were excluded. CONCLUSION: Due to the multi-disciplinary nature of PHI, MeSH identifiers were not assigned consistently. Current MeSH tagged articles indicate that a comprehensive approach is required to integrate PHI into the healthcare system. PMID- 29026458 TI - Safe Opioid Prescription: A SMART on FHIR Approach to Clinical Decision Support. AB - : Background Prescription opioid pain medication overuse, misuse and abuse have been a significant contributing factor in the opioid epidemic. The rising death rates from opioid overdose have caused healthcare practitioners and researchers to work on optimizing pain therapy and limiting the prescriptions for pain medications. The state of New York has implemented a prescription drug monitoring program(PDMP), amended public health law to limit the prescription of opioids for acute pain and utilized the resources of the state and county health departments to help in curbing this epidemic. The recent publication of guidelines for prescription opioids from CDC [1] and ASIPP (American Society of Interventional pain practitioners) have independently reviewed literature and found good evidence of limiting opioid prescription for acute and chronic non cancer pain. [2] Method Over the last decade, advanced technology has increased the complexity of electronic health records systems leading to the development of Clinical Decision Support Systems (CDSS) to aid the work flow of healthcare providers. There are several systematic reviews on the effectiveness and utility of CDSSs. A common consensus is that commercially and locally developed CDSS are effective in improving patient measures while actual workload improvement and efficient cost cutting measure are not significantly improved by CDSS. Patient provider involvement in developing CDSS is a determinant of its success and utilization rates. [7] Therefore, a plug and play form of CDSS which can be implemented from an external platform through secure channels would be more effective. Design The Health Level Seven's (HL7) open licensed interoperability standard Fast Health Interoperability Resources (FHIR) has a platform, Substitutable Medical Applications and Reusable Technologies (SMART) for CDSS app development by a third party. [3] We adopted these open source standard to plan to develop an app for accessible and efficient implementation of the recently published guidelines for management of pain with prescription opioid medications. AIM: PMID- 29026459 TI - Correction. AB - [This corrects the article , PMID: 28210429.]. PMID- 29026460 TI - Stem cell therapy for nerve injury. AB - Peripheral nerve injury has remained a substantial clinical complication with no satisfactory treatment options. Despite the great development in the field of microsurgery, some severe types of neural injuries cannot be treated without causing tension to the injured nerve. Thus, current studies have focused on the new approaches for the treatment of peripheral nerve injuries. Stem cells with the ability to differentiate into a variety of cell types have brought a new perspective to this matter. In this review, we will discuss the use of three main sources of mesenchymal stem cells in the treatment of peripheral nerve injuries. PMID- 29026461 TI - Role of aryl hydrocarbon receptor in mesenchymal stromal cell activation: A minireview. AB - Mesenchymal stromal cells (MSCs) possess great therapeutic advantages due to their ability to produce a diverse array of trophic/growth factors related to cytoprotection and immunoregulation. MSC activation via specific receptors is a crucial event for these cells to exert their immunosuppressive response. The aryl hydrocarbon receptor (AhR) is a sensitive molecule for external signals and it is expressed in MSCs and, upon positive activation, may potentially regulate the MSC associated immunomodulatory function. Consequently, signalling pathways linked to AhR activation can elucidate some of the molecular cascades involved in MSC mediated immunosuppression. In this minireview, we have noted some important findings concerning MSC regulation via AhR, highlighting that its activation is associated with improvement in migration and immunoregulation, as well as an increase in pro-regenerative potential. Thus, AhR-mediated MSC activation can contribute to new perspectives on MSC-based therapies, particularly those directed at immune-associated disorders. PMID- 29026462 TI - Murine hepatocellular carcinoma derived stem cells reveal epithelial-to mesenchymal plasticity. AB - AIM: To establish a model to enrich and characterize stem-like cells from murine normal liver and hepatocellular carcinoma (HCC) cell lines and to further investigate stem-like cell association with epithelial-to-mesenchymal transition (EMT). METHODS: In this study, we utilized a stem cell conditioned serum-free medium to enrich stem-like cells from mouse HCC and normal liver cell lines, Hepa 1-6 and AML12, respectively. We isolated the 3-dimensional spheres and assessed their stemness characteristics by evaluating the RNA levels of stemness genes and a cell surface stem cell marker by quantitative reverse transcriptase-PCR (qRT PCR). Next, we examined the relationship between stem cells and EMT using qRT PCR. RESULTS: Three-dimensional spheres were enriched by culturing murine HCC and normal hepatocyte cell lines in stem cell conditioned serum-free medium supplemented with epidermal growth factor, basic fibroblast growth factor and heparin sulfate. The 3-dimensional spheres had enhanced stemness markers such as Klf4 and Bmi1 and hepatic cancer stem cell (CSC) marker Cd44 compared to parental cells grown as adherent cultures. We report that epithelial markers E-cadherin and ZO-1 were downregulated, while mesenchymal markers Vimentin and Fibronectin were upregulated in 3-dimensional spheres. The 3-dimensional spheres also exhibited changes in expression of Snai, Zeb and Twist family of EMT transcription factors. CONCLUSION: Our novel method successfully enriched stem like cells which possessed an EMT phenotype. The isolation and characterization of murine hepatic CSCs could establish a precise target for the development of more effective therapies for HCC. PMID- 29026463 TI - T-cell allorecognition of donor glutathione S-transferase T1 in plasma cell-rich rejection. AB - AIM: To investigate the role of glutathione S-transferase T1 donor-specific T lymphocytes in plasma cell-rich rejection of liver allografts. METHODS: The study group included 22 liver transplant patients. Among them, 18 patients were mismatched for the glutathione S-transferase T1 (GSTT1) alleles (don+/rec-), and 4 were matched (don+/rec+). Seven of the mismatched patients produced anti-GSTT1 antibodies and developed plasma cell-rich rejection (former de novo immune hepatitis). For the detection of specific T lymphocytes, peripheral blood mononuclear cells were collected and stored in liquid nitrogen. The memory T cell response was studied by adding to the cell cultures to a mix of 39 custom-made, 15-mer overlapping peptides, which covered the entire GSTT1 amino acid sequence. The specific cellular response to peptides was analyzed by flow cytometry using the markers CD8, CD4, IL-4 and IFNgamma. RESULTS: Activation of CD8+ T cells with different peptides was observed exclusively in the group of patients with plasma cell rich rejection (3 out of 7), with production of IL-4 and/or IFNgamma at a rate of 1%-4.92% depending on the peptides. The CD4+ response was most common and not exclusive for patients with the disease, where 5 out of 7 showed percentages of activated cells from 1.24% to 31.34%. Additionally, two patients without the disease but with the mismatch had cells that became stimulated with some peptides (1.45%-5.18%). Highly unexpected was the finding of a double positive CD4+CD8low T cell population that showed the highest degree of activation with some of the peptides in 7 patients with the mismatch, in 4 patients with plasma cell-rich rejection and in 3 patients without the disease. Unfortunately, CD4+CD8low cells represent 1% of the total number of lymphocytes, and stimulation could not be analyzed in 9 patients due to the low number of gated cells. Cells from the 4 patients included as controls did not show activation with any of the peptides. CONCLUSION: Patients with GSTT1 mismatch can develop a specific T-cell response, but the potential role of this response in the pathogenesis of plasma cell-rich rejection is unknown. PMID- 29026465 TI - Towards Effective Pain Management: Breaking the Barriers. PMID- 29026464 TI - Evaluation of Doppler-ultrasonography in the diagnosis of transjugular intrahepatic portosystemic shunt dysfunction: A prospective study. AB - AIM: To prospectively evaluate the performance of Doppler-ultrasonography (US) for the detection of transjugular intrahepatic portosystemic shunt (TIPS) dysfunction within a multicenter cohort of cirrhotic patients. METHODS: This study was conducted in 10 french teaching hospitals. After TIPS insertion, angiography and liver Doppler-US were carried out every six months to detect dysfunction (defined by a portosystemic gradient >= 12 mmHg and/or a stent stenosis >= 50%). The association between ultrasonographic signs and dysfunction was studied by logistic random-effects models, and the diagnostic performance of each Doppler criterion was estimated by the bootstrap method. This study was approved by the ethics committee of Tours. RESULTS: Two hundred and eighteen pairs of examinations performed on 87 cirrhotic patients were analyzed. Variables significantly associated with dysfunction were: The speed of flow in the portal vein (P = 0.008), the reversal of flow in the right (P = 0.038) and left (P = 0.049) portal branch, the loss of modulation of portal flow by the right atrium (P = 0.0005), ascites (P = 0.001) and the overall impression of the operator (P = 0.0001). The diagnostic performances of these variables were low; sensitivity was < 58% and negative predictive value was < 73%. Therefore, dysfunction cannot be ruled out from Doppler-US. CONCLUSION: The performance of Doppler-US for the detection of TIPS dysfunction is poor compared to angiography. New tools are needed to improve diagnosis of TIPS dysfunction. PMID- 29026466 TI - Influenza Research in the Eastern Mediterranean Region: A Review. AB - Given the importance of influenza infections in the Eastern Mediterranean Region (EMR), we conducted a comprehensive literature review to analyze the status of influenza research in the region from 2012. Influenza research has gained more momentum recently with the emergence of H5N1 and new virus strains. Research covering epidemiological, veterinary, and basic science aspects is growing. More sequences were being generated per year, not only for diagnostic purposes but also for research. We included gray literature publications in our search and found several graduate student dissertations from Egypt, which were published on an online portal. However, the search revealed some weaknesses, mostly in the areas of study design and the lack of surveillance studies. Another weakness was the fact that the publications originated from very few countries, mainly Egypt and Iran. Although improving, influenza research in the EMR remains weak. We recommend encouraging countries in the EMR to conduct more influenza research using stronger methodologies. PMID- 29026467 TI - Chromogranin A as a Biochemical Marker for Neuroendocrine Tumors: A Single Center Experience at Royal Hospital, Oman. AB - OBJECTIVES: To evaluate the significance of serum chromogranin A (CgA) status in patients with and without different neuroendocrine tumors (NETs) by conducting a retrospective assessment of the diagnostic utility and limitations of CgA as a biomarker for NETs in a tertiary care hospital in Oman. METHODS: We conducted a retrospective analysis of CgA requests referred to the Clinical Biochemistry Laboratory, Royal Hospital, Oman over a 24-month period (April 2012 to March 2014). During this time, 302 CgA tests for 270 patients (119 males and 151 females; age range 11-86 years and mean+/-standard deviation (SD) 44.0+/-18.0 years), were requested. Of these CgA tests, 245 tests were performed for 245 patients investigated for the diagnosis of NETs, and 57 CgA tests were performed for 25 patients with diagnosed NETs who were undergoing follow-up. Serum CgA levels were analyzed using the enzyme-linked immunosorbent assay based on a cut off value of 22 IU/L. RESULTS: Of the 302 CgA tests reviewed, 197 (65.2%) were within the quoted normal range; however, 105 (34.8%) had CgA > 22 IU/L. Of the 245 patients with first-line CgA, 38 patients (15.5%) had NET that included carcinoid, pheochromocytoma, pancreatic NET, adrenal adenoma, prostatic adenocarcinoma, gastrointestinal NET, medullary thyroid carcinoma, Schwannoma, lung small cell carcinoma, parathyroid adenoma, and pituitary macroadenoma. The mean+/-SD of CgA in these patients with NETs was 205.0+/-172.0 IU/L. Meanwhile, there were 45 (18.3%) patients with CgA > 22 IU/L (83.0+/-116.0 IU/L) who did not have NETs. The conditions/diseases included: essential hypertension, chronic kidney disease, heart failure, peptic ulcer, chronic diarrhea, use of proton pump inhibitors, and other chronic diseases (hypothyroidism, asthma, diabetes mellitus). Of the 25 patients with known NET who were followed-up, there were 57 CgA results (29 with CgA <= 22 IU/L and 28 with CgA > 22 IU/L). The overall clinical sensitivity of CgA in the diagnosis of NETs was 84.2%, overall specificity was 78.2%, positive predictive value was 41.5%, negative predictive value was 96.4%, and overall efficiency was 79.2%. In patients with individual NET, a good reflection in CgA was noticed in the follow-up period following surgery or therapy. CONCLUSIONS: Serum CgA is a sensitive and effective noninvasive laboratory test for the clinical detection and management of NETs. Awareness of the pitfalls of the tests in patients with non-NET conditions, particularly chronic diseases and use of certain drugs, is important to be considered during the interpretation of the CgA levels. PMID- 29026468 TI - Awareness and Knowledge of Ionizing Radiation Risks Between Prescribed and Self Presenting Patients for Common Diagnostic Radiological Procedures in Bahrain. AB - OBJECTIVES: Between 20 to 50% of medical imaging examinations are considered inappropriate, and unnecessary ionizing radiation exposures may lead to cancer. We hypothesized that Bahraini patients who self-present for ionizing radiation procedures are not aware of, and lack the requisite knowledge of, the inherent risks associated with their use than patients prescribed for diagnostic purposes. We attempted to examine and compare the awareness and knowledge of the associated risks of ionizing radiation in common diagnostic radiological procedures between prescribed and self-presenting patients in Bahrain. METHODS: A cross-sectional survey was carried out among 416 Bahraini patients attending the radiology department of the Salmaniya Medical Complex (SMC), a secondary health care center, who had been referred by primary care physicians or self-presented to the center. Data was collected via face-to-face interviews. RESULTS: Prescribed patients (n = 358) had a better awareness than self-presenting (n = 58) patients on all ionizing radiation awareness statements (i.e., risks, permissible levels, willingness to undergo the procedure, and preference for a clinical examination over a radiological procedure) (p < 0.050). Of the 10 knowledge statements, the prescribed patients agreed on four statements than the self-presenting patients: preventing or minimizing exposure improves health, people can prevent or minimize exposure, a lifelong health concern, and radiological procedures offer best diagnoses compared to medical tests or procedures (p < 0.050). CONCLUSIONS: Bahraini patients who reported to SMC lack awareness and knowledge on ionizing radiation. The proportion of appropriate responses to awareness and knowledge questions were paltry for self-presenting patients and deficient for the prescribed patients in the knowledge segment alone. PMID- 29026469 TI - The Effectiveness of Mindfulness-based Cognitive Therapy on Psychological Symptoms and Quality of Life in Systemic Lupus Erythematosus Patients: ?A Randomized Controlled Trial. AB - OBJECTIVES: This study was conducted to determine the efficacy of mindfulness based cognitive therapy (MBCT) on psychological symptoms and quality of life (QoL) in patients with systemic lupus erythematosus (SLE). METHODS: We conducted a randomized single-blind clinical trial in patients with SLE referred from the Imam Ali Clinic in Shahrekord, southwest Iran. The patients (46 in total in two groups of 23 each) were randomly assigned into the experimental and control groups. Both groups underwent routine medical care, and the experimental group underwent eight group sessions of MBCT in addition to routine care. The patient,s QoL was assessed using the General Health Questionnaire-28 and 36-Item Short Form Health Survey before, after, and six months after intervention (follow-up). RESULTS: A significant difference was seen in psychological symptoms and QoL between MBCT and control groups immediately after the intervention and at follow up (p <= 0.050). However, the difference was not significant for the physical components of QoL (p >= 0.050). CONCLUSIONS: MBCT contributed to decreased psychological symptoms and improved QoL in patients with SLE with a stable effect on psychological symptoms and psychological components of QoL, but an unstable effect on physical components. PMID- 29026470 TI - Major Determinants of Maternal Near-Miss and Mortality at the Maternity Teaching Hospital, Erbil city, Iraq. AB - OBJECTIVES: To find out the major determinants of maternal near-miss (NM)and maternal deaths (MDs) in Erbil city, Iraq, by comparative analysis of maternal NMs and MDs. METHODS: We conducted a hospital-based cross-sectional study in the Maternity Teaching Hospital in Erbil city from 1 June to 31 December 2013. All MDs and NMs that occurred in the hospital during the study period were included in the study. Systematic identification of all eligible women was done. This identification included a baseline assessment of the severe pregnancy-related complications using the World Health Organization NM criteria. RESULTS: Severe preeclampsia and postpartum hemorrhage (PPH) constituted the highest proportions of complications in women with potentially life-threatening conditions (PLTCs) (30.5% and 30.0%, respectively). The highest mortality indexes were those for ruptured uterus (16.7) and severe complications of placenta previa (14.2). Factors that were significantly associated with MD (compared to NM) were hepatic dysfunction (p = 0.046), multiple/unspecified disorders (p = 0.003), arrival as an emergency condition by ambulance (p = 0.015), and history of previous cesarean section (p = 0.013). CONCLUSIONS: Severe preeclampsia and PPH are the main complications that lead to PLTCs. Factors found to be associated with MDs are hepatic dysfunction, multiple/unspecified disorders, arrival as an emergency condition by ambulance, and history of a previous cesarean section. PMID- 29026471 TI - Pertussis and Pertussis like Illness: Pediatric Experience in Oman. AB - OBJECTIVES: A resurgence of pertussis or whooping cough has been observed worldwide despite broad vaccination coverage. Pertussis like illness (PLI) refers to a clinical syndrome compatible with pertussis infection but lacking laboratory confirmation or an epidemiological link to a confirmed case. Our study aimed to estimate the contribution of Bordetella pertussis infection and identifying predictors of its diagnosis in a cohort of children with PLI. METHODS: Demographic and clinical information were retrospectively collected from the medical records of children < 13 years old and hospitalized for PLI in two pediatric units in Oman from 1 January 2012 to 31 December 2013. The laboratory data of all cases were reviewed and confirmed cases of pertussis were identified, analyzed, and compared with non-confirmed cases. RESULTS: A total of 131 patients were enrolled in this study. The majority (95.4% [125/131]) were infants. Only 54.1% (71/131) of admitted children with PLI were tested for pertussis. The incidence of pertussis infection among the tested group was 16.9% (12/71) with a 95% confidence interval 8.2-25.6. Severe illness occurred in 56.4% (74/131) of patients, and six were confirmed to have pertussis. Pediatric intensive care unit admission was required for one confirmed case of pertussis and eight cases from the PLI group (three were negative for pertussis, and five were not tested). Receiver operator characteristic curve analysis revealed that a white blood cell count 3 23.5 * 109/L had 96.6% specificity and lymphocytes 3 17 * 109/L had 98.3% specificity. CONCLUSIONS: Taking into consideration that the number tested for pertussis was limited, the incidence of pertussis was 16.9% (12 out of 71 patients). Lymphocytosis can be used as a reliable predictor for the diagnosis of pertussis especially in the absence of specific confirmatory tests or until their results are available. PMID- 29026472 TI - Clinical Features and Antimicrobial Resistance of Bacterial Agents of Ventilator Associated Tracheobronchitis in Hamedan, Iran. AB - OBJECTIVES: Ventilator-associated tracheobronchitis (VAT) is a common cause of mortality and morbidity in patients admitted to intensive care units (ICUs). This study was conducted to evaluate the clinical course, etiology, and antimicrobial resistance of bacterial agents of VAT in ICUs in Hamedan, Iran. METHODS: During a 12-month period, all patients with VAT in a medical and a surgical ICU were included. The criteria for the diagnosis of VAT were fever, mucus production, a positive culture of tracheal secretions, and the absence of lung infiltration. Clinical course, including changes in temperature and tracheal secretions, and outcomes were followed. The endotracheal aspirates were cultured on blood agar and chocolate agar, and antimicrobial susceptibility testing of isolates were performed using the disk diffusion method. RESULTS: Of the 1 070 ICU patients, 69 (6.4%) were diagnosed with VAT. The mean interval between the patient's intubation and the onset of symptoms was 4.7+/-8.5 days. The mean duration of response to treatment was 4.9+/-4.7 days. A total of 23 patients (33.3%) progressed to ventilator-associated pneumonia (VAP), and 38 patients (55.0%) died. The most prevalent bacterial isolates included Acinetobacter baumannii (24.6%), Pseudomonas aeruginosa (20.2%), and Enterobacter (13.0%). P. aeruginosa and Enterobacter were the most prevalent bacteria in surgical ICU, and A. baumannii and K. pneumoniae were the most common in the medical ICU. All A. baumannii and Citrobacter species were multidrug-resistant (MDR). MDR pathogens were more prevalent in medical ICU compared to surgical ICU (p < 0.001). CONCLUSIONS: VAT increases the rates of progression to VAP, the need for tracheostomy, and the incidence of mortality in ICUs. Most bacterial agents of VAT are MDR. Preventive policies for VAP, including the use of ventilator care bundle, and appropriate empirical antibiotic therapy for VAT may reduce the incidence of VAP. PMID- 29026473 TI - Hepatitis C Genotypes in Libya: Correlation with Patients' Characteristics, Level of Viremia, and Degree of Liver Fibrosis. AB - OBJECTIVES: Our study sought to determine the distribution of hepatitis C virus (HCV)-genotypes among patients attending two tertiary care hospitals in Benghazi and Tripoli, Libya, and correlate this with patient's characteristics, viral load, and degree of fibrosis. METHODS: We conducted a retrospective study of 286 HCV-RNA positive Libyan patients referred from different health care facilities in east and west Libya for specific HCV treatment. HCV genotyping was carried out by gene amplification. Liver histology was graded by Metavir score according to the stage of fibrosis. RESULTS: HCV genotypes 1, 2, 3, and 4 were found in 24.1%, 10.8%, 3.4%, and 61.5% of the patients, respectively. Genotype 4 was detected more frequently in patients from east Libya (Benghazi) compared to west Libya (Tripoli) (75.9% vs. 41.6%, p = 0.245). Genotype 1 was more frequent in patients from west Libya compared to east Libya (34.1% vs. 16.8%, p = 0.657). There was a significant correlation between HCV genotype distribution and viral load. Patients with genotype 4 exhibited a higher degree of liver fibrosis (p < 0.001). CONCLUSIONS: HCV genotype 4 is the predominant genotype in Libya followed by genotype 1. However, as we go from the east to the west of the country, genotype 1 increases. Genotype 4 was associated with higher level of viremia and higher stage of liver fibrosis. It is important to note that both genotypes 1 and 4 are associated with a poor response to pegylated interferon and ribavirin combination therapy. The findings emphasize the need to develop improved strategies in Libya for the successful treatment of HCV infection with novel newly available antiviral drugs. PMID- 29026474 TI - Using Growth Mixture Modeling for Clustering Asian and North African Countries on the Road Injury Death Trend (1990-2010). AB - OBJECTIVES: The physical injuries and financial implications as a result of road accidents have serious economic, cultural, and social effects. We conducted this study to determine any changes in the trend of road-accident-related deaths in Asian and North African countries from 1990 to 2010. METHODS: The current study was carried out using data from the Global Burden of Disease database. First, the process was assessed using the growth curve divided into six regions. Moreover, the classification was done based on the death rate using growth mixed modeling. RESULTS: The road injury death trend for men had more variations than women. Classification of these countries based on mortality using the latent growth mixture model resulted in more homogeneous classes according to trend in road fatalities. Disregarding gender and sex, there were four optimal classes. The first three classes had a decreasing trend with the third class having the greatest decreasing trend. South Korea and Taiwan were in this group. Afghanistan, Indonesia, Thailand, Iran, the UAE, Saudi Arabia, and Oman lay in group 4 and had an increasing trend in road injury deaths. CONCLUSIONS: Successful interventions that developed countries have used to avoid casualties of road injuries could be used in developing countries. These include passing laws making the use of seatbelts and child seats compulsory and determining appropriate speed limits. PMID- 29026475 TI - Human Parvovirus B19 in Children with Sickle Cell Disease; Poking the Spleen. AB - Parvovirus is a known culprit of transient red cell aplasia (TRCA) in children with sickle cell disease (SCD). Few reports have previously described the association between the virus and acute splenic sequestration crisis (ASSC) in the same patient. Here, we are shedding light on such a potentially serious combination by reporting two cases of siblings with SCD complicated with concurrent ASSC and TRCA and presenting a review of the relevant literature. PMID- 29026476 TI - Tenofovir-induced Leukocytoclastic Vasculitis. AB - Tenofovir, a nucleotide analog, is one of the first-line medications recommended for the treatment of active chronic hepatitis B virus infection (CHB) and as a primary prophylaxis to prevent hepatitis B reactivation in cases of immunosuppression. We report the first case of tenofovir-induced leukocytoclastic vasculitis (LCV). A 43-year-old obese woman, who was known to have inactive CHB, was diagnosed with chronic immune thrombocytopenic purpura (ITP). She was treated with corticosteroid therapy and was put on tenofovir to prevent hepatitis B virus reactivation. A month later, she developed a skin rash, described as non blanchable well-defined erythematous to violaceous papules and targetoid patches in her lower extremities. A skin biopsy showed features of LCV. The rash resolved completely within few days after replacing tenofovir with entecavir. PMID- 29026477 TI - Giant Submandibular Calculus Eroding Oral Cavity Mucosa. AB - Sialolithiasis is the formation of calculi or sialoliths in the salivary gland. It is the most common benign condition of the salivary gland. Sialolithiasis can occur in all salivary glands. The submandibular gland is most commonly affected followed by the parotid gland. Calculi commonly measure less than 10 mm. Calculi of more than 15 mm are termed giant salivary gland calculi and are infrequently reported in the literature. Here, we report a case of unusually large submandibular gland calculus of 5 cm in greatest dimension which caused erosion of the oral cavity. PMID- 29026478 TI - Vaginal Reconstruction for Vaginal Obliteration Secondary to Stevens Johnson Syndrome: A Case Report and Review of Literature. AB - Stevens-Johnson syndrome (SJS) is a rare and acute life-threatening condition, which is almost always precipitated by drugs. Genital mucositis in female patients may also be an important cause of long-term morbidity secondary to mucosal scarring. We present the case of a 33-year-old nulligravid woman with distal vaginal synechiae necessitating a surgical approach, which occurred after an episode of SJS. Also, we aimed to review the literature to reveal cases which required surgical management for long-term genital sequelae as well as discuss preventive measures. PMID- 29026479 TI - It is Always Darkest Before Dawn. PMID- 29026480 TI - Dhat Syndrome Among the Islamic Populations of India and Pakistan. PMID- 29026481 TI - The Impact of Lifestyle, Diet, and Psychological Stress on Female Fertility. PMID- 29026482 TI - Continuity of Care. PMID- 29026483 TI - Hospital Charges and Continuity of Care for Outpatients with Hypertension in South Korea: A Nationwide Population-Based Cohort Study from 2002 to 2013. AB - BACKGROUND: Continuity of care (COC) has received attention over the past decade. COC has also become increasingly important for hospital managers and policy makers because of competitive health care market conditions. The purpose of this study was to assess the association between hospital charges and patients' continuity of care-assessed by three indices of continuity of care-among outpatients with hypertension in South Korea. METHODS: This study used the National Health Insurance Service-Cohort Sample Database from 2002 to 2013. A total of 247,125 participants were analyzed at baseline (2002); continuity of care was defined using the continuity of care index, the Herfindahl-Hirschman index (a new continuity of care index), and the "most frequent provider continuity" index. Primary analyses were based on the generalized estimating equation regression model, which accounts for correlation among individuals within each hospital. RESULTS: After adjustment for age, sex, residential region, patient clinical complexity level, diagnosed code, hospital type, organization type, number of beds, number of doctors, and year, there was a negative correlation between hospital charges and continuity of care index (beta=-0.163, P<0.0001), the Herfindahl-Hirschman index (beta=-0.105, P<0.0001), and the "most frequent provider continuity" index (beta=-0.131, P<0.0001). Subgroup analyses based on hospital type produced similar trends. CONCLUSION: For all indices studied, hospital charges declined gradually with increasing continuity of care. Our study suggests that long-term, trusting partnerships between patients and physicians reduce hospital costs. PMID- 29026484 TI - Serum Lipid Levels in Relation to Consumption of Yogurt: The 2012 Korea National Health and Nutrition Examination Survey. AB - BACKGROUND: The purpose of this study was to evaluate serum lipid levels in Korean adults after consumption of different types of yogurt. METHODS: Study subjects were 3,038 individuals (>=19 years of age) who participated in the 2012 Korean National Health and Nutrition Examination Survey. Yogurt intake was assessed with a food frequency questionnaire by using the 24-hour recall method. We conducted complex samples general linear analysis with adjustment for covariates. RESULTS: The serum triglyceride levels in the group consuming viscous yogurt were lower than those in the group consuming non-viscous yogurt. CONCLUSION: Consumption of viscous yogurt is associated with low serum triglyceride levels in Korean adults. PMID- 29026485 TI - Health Behavior and Factors Associated with Depression in North Korean Adolescent Defectors in South Korea: The Korea Youth Risk Behavior Web-Based Survey, 2011 2014. AB - BACKGROUND: The number of North Korean adolescent defectors entering South Korea has been increasing. The health behavior, including mental health-related behavior, and factors associated with depression in North Korean adolescent defectors residing in South Korea were investigated. METHODS: Data obtained from the Korea Youth Risk Behavior Web-Based Survey (2011-2014) dataset were utilized. In total, 206 North Korean adolescent defectors were selected, and for the control group, 618 matched South Korean adolescents were selected. Frequency analysis was used to determine the place of birth and nationality of the parents, chi-square tests were used to compare the general characteristics of the North and South Korean subjects, and multivariate logistic regressions were conducted to compare the health behavior of the two sets of subjects. To determine the factors associated with depression in the North Korean subjects, a logistic regression was performed. RESULTS: The North Korean adolescents reported higher current smoking (adjusted odds ratio [aOR], 2.54; 95% confidence interval [CI], 1.48 to 4.35), current drinking (aOR, 1.85; 95% CI, 1.15 to 2.99), and drug use rates (aOR, 10.99; 95% CI, 4.04 to 29.88) than did the South Korean adolescents. The factors associated with depression in the North Korean adolescents were current smoking (aOR, 6.99; 95% CI, 1.62 to 30.06), lifetime drinking experience (aOR, 5.32; 95% CI, 1.51 to 18.75), and perceived stress (aOR, 4.74; 95% CI, 1.74 to 12.90). CONCLUSION: There were differences in health behavior between the North and South Korean adolescents. A specialized approach for North Korean adolescent defectors is required to promote proper health behavior and adaptation to South Korean society. PMID- 29026486 TI - Martin's Equation as the Most Suitable Method for Estimation of Low-Density Lipoprotein Cholesterol Levels in Korean Adults. AB - BACKGROUND: Friedewald equation is the most widely used method for estimating low density lipoprotein cholesterol (LDL-C) level. However, due to potential over- or underestimation, many studies have used a modified equation. This study aimed to compare estimates by 4 different equations to directly measured LDL-C concentrations in order to propose the most appropriate method for LDL-C estimation in the Korean population. METHODS: We studied data of 4,350 subjects that included total cholesterol, high-density lipoprotein cholesterol (HDL-C), triglyceride (TG), and LDL-C concentrations that had been measured at one university hospital in Seoul. We investigated 4 equations: LDL-C by Friedewald's original equation (LDL-CF) and its 3 modifications. Pearson correlation analysis was performed to compare these estimates to the direct measurement. RESULTS: Pearson correlation analysis revealed a good correlation among all 4 estimated LDL-C values and the directly measured LDL-C value. The Pearson coefficients were 0.951 for LDL-CF, 0.917 for LDL-C by Hatta equation (LDL-CH), 0.968 for LDL-C by Puavilai equation (LDL-CP), and 0.983 for LDL-C by Martin equation (LDL-CM). Martin equation (LDL-CM) resulted in the best approximation (mean difference from the direct measurement, 5.5 mg/dL; mean percentage difference from the direct measurement, 5.1%) and the best agreement with the direct measurement (86.1%). LDL-CP resulted in the second-best approximation (mean difference, 7.0 mg/dL; mean percentage difference, 6.2%; concordance, 82.5%). LDL-CM was found to be less influenced by TG and HDL-C levels than by LDL-CF. CONCLUSION: Estimates by Martin equation had the best agreement with direct LDL-C concentrations and both Martin and Puavilai equations were superior to Friedewald equation for estimating LDL-C concentrations in Korean adults. PMID- 29026487 TI - Seasonal Variations and Correlations between Vitamin D and Total Testosterone Levels. AB - BACKGROUND: Some studies have provided evidence for a possible association between vitamin D and testosterone levels; however, the evidence from studies in Koreans is inconsistent. In addition, insufficient evidence is available to support an association between seasonal variations in vitamin D and testosterone levels in Koreans. Therefore, we aimed to investigate the association between vitamin D and testosterone levels, and between seasonal variations in these levels in Korean men. METHODS: This cross-sectional study included 1,559 men, aged 25-86 years, who underwent a medical examination. We measured serum 25 hydroxyvitamin D (25[OH]D) and total testosterone levels, and compared other laboratory test results and patient lifestyle characteristics. On the basis of sample collection time, we categorized patients into four seasons, and analyzed seasonal variability in 25(OH)D and total testosterone levels. RESULTS: The average participant age (+/-standard deviation) was 53.3+/-8.8 years, and the average serum 25(OH)D and total testosterone levels were 15.9+/-7.0 ng/mL and 5.1+/-1.6 ng/mL, respectively. In the analysis of variance (ANOVA) model, no significant association was found between 25(OH)D and testosterone levels (P=0.51). ANOVA of the average 25(OH)D levels in season-based groups revealed significant seasonal variations in 25(OH)D levels (P-value for trend <0.001). No significant association was found between seasonal variations in total testosterone levels (P=0.06). However, after adjustment for confounding variables, total testosterone and 25(OH)D showed significant seasonal variability (P=0.007 and P<0.001, respectively). CONCLUSION: We found no significant correlation between serum 25(OH)D and total testosterone levels in Korean men. Moreover, serum 25(OH)D and total testosterone levels showed significant seasonal variations. PMID- 29026488 TI - A Longitudinal Study on the Effects of Negative Rearing Experiences on Adolescents' Social Withdrawal and Aggression. AB - BACKGROUND: Children who have experienced negative rearing behaviors show a lack of self-confidence due to emotional instability and are reserved in interpersonal relationships. This can lead to failure in social adaptation and a high risk of depression, suicide, criminal acts, and anti-social behaviors. Therefore, this study aims to analyze the effects of experiencing negative parental rearing behaviors, such as neglect and abuse, on adolescents' social withdrawal and aggression, by utilizing multivariate latent growth models. METHODS: Data from the Korean Children and Youth Panel Study (KCYPS), a survey conducted by the National Youth Policy Institute targeting a cohort of three different age groups (grade 1, grade 4, and grade 7), from 2010 to 2016 was used. Multi-stage stratified sampling methods were used in the KCYPS, which surveyed the students and parents of the selected grade levels. This study analyzed the data for grade 7, from second year (grade 8) to fourth year (grade 10). RESULTS: Negative rearing experiences had a significant effect on social withdrawal and aggression, and this influence was shown to persist over the long term. CONCLUSION: This study examined the long-term developmental trajectory in the relationship between risk factors for adolescent development. Furthermore, the relationship between risk factors was shown to have not only short term but long-term effects as well, which reinforces the limitations of previous studies. PMID- 29026489 TI - Delphi Survey for Designing a Intervention Research Study on Childhood Obesity Prevention. AB - BACKGROUND: The prevalence of childhood obesity in South Korea has increased owing to economic improvement and the prevailing Westernized dietary pattern. As the incidence of chronic diseases caused by obesity is also expected to increase, effective interventions to prevent childhood obesity are needed. Therefore, we conducted a Delphi study to determine the priorities of a potential intervention research on childhood obesity prevention and its adequacy and feasibility. METHODS: The two-round Delphi technique was used with a panel of 10 childhood obesity experts. The panelists were asked to rate "priority populations," "methods of intervention," "measurement of outcomes," "future intervention settings," and "duration of intervention" by using a structured questionnaire. Finally, a portfolio analysis was performed with the adequacy and feasibility indexes as the two axes. RESULTS: For priority populations, the panel favored "elementary," "preschool," and "middle and high school" students in this order. Regarding intervention settings, the panelists assigned high adequacy and feasibility to "childcare centers" and "home" for preschool children, "school" and "home" for elementary school children, and "school" for adolescents in middle and high school. As the age of the target population increased, the panelists scored increasing numbers of anthropometric, clinical, and intermediate outcomes as highly adequate and feasible for assessing the effectiveness of the intervention. CONCLUSION: According to the results of the Delphi survey, the highest-priority population for the research on childhood obesity prevention was that of elementary school students. Various settings, methods, outcome measures, and durations for the different age groups were also suggested. PMID- 29026490 TI - Carbohydrate-Deficient Transferrin as a Biomarker for Screening At-Risk Drinking in Elderly Men. AB - BACKGROUND: Carbohydrate-deficient transferrin (CDT) is a useful biomarker to identify excessive alcohol consumption; however, few studies have validated the %CDT cut-off value in elderly men. This study estimated the optimal %CDT cut-off value that could identify excessive alcohol consumption in men aged >=65 years. METHODS: This retrospective study included 120 men who visited the department of family medicine at Chungnam National University Hospital for health check-up between January 2010 and August 2013. At-risk drinking included heavy- and binge drinking. Heavy drinking was defined as more than seven standard drinks/wk, and binge drinking was defined as more than three standard drinks/d. The cut-off %CDT values for at-risk drinking were determined using receiver operating characteristic (ROC) curves. RESULTS: Based on the ROC curves, the optimal %CDT cut-off values in >=65-year-old men were 1.95% for at-risk drinking, 1.81% for heavy drinking, and 2.07% for binge drinking. The sensitivity, specificity, and positive and negative predictive values were 58.7%, 83.6%, 69.2%, and 76.2% for at-risk drinking, respectively. The AUROC were >0.7 for all three evaluated cut offs. CONCLUSION: Our results suggest that the %CDT cut-off value for at-risk drinking in elderly Korean men (>=65 years) should be readjusted to a lower value of 1.95%. PMID- 29026492 TI - Chronic Large Non Healing Ulcer: Non-Tuberculous Mycobacterial Infection of the Laryngopharynx. AB - We describe a case of non-tuberculous mycobacterial infection of the larynx in a previously well, immunocompetent young woman. Laryngeal mycobacterial infection is rare and currently accounts for less than 1% of all cases. A diagnostic dilemma often occurs because it may mimic laryngeal carcinoma, chronic laryngitis, or laryngeal candidiasis. This case highlights the importance of considering non-tuberculous mycobacterial infection in the differential diagnosis of laryngeal lesions. PMID- 29026491 TI - Does Economic Instability Affect Healthcare Provision? Evidence Based on the Urban Family Physician Program in Iran. AB - BACKGROUND: The main aim of this study was to evaluate the achievements of some important goals of Iran's urban family physician plan. This plan was implemented when the country experienced economic instability. We examine whether an economic crisis affects the efficacy of a healthcare program. METHODS: We used the household income and expenditures survey data for 2011 (before program implementation) and 2012 (after program implementation). Changes in out-of-pocket payments and healthcare utilization were investigated using the propensity score matching estimator. Furthermore, changes in inequality in these two dimensions were examined. RESULTS: No changes in out-of-pocket payments and healthcare utilization were found after the implementation of this program; however, inequality in out-of-pocket payments increased during the reform. CONCLUSION: The urban family physician program was not implemented completely and many of its fundamental settings were not conducted because of lack of necessary healthcare infrastructure and budget limitations. Family physician programs should be implemented under a strong healthcare infrastructure and favorable economic conditions. PMID- 29026493 TI - An Uncommon Side Effect of a Commonly Used Antibiotic: Amoxicillin-Clavulanic Acid Induced Hepatitis. AB - Amoxicillin-Clavulanic acid continues to be one of the most commonly used antibiotic combinations. Hepatic injury due to this antibiotic is rare. We report a case of amoxicillin-clavulanic acid induced hepatitis causing painless jaundice to bring to attention this rare side effect of this commonly used antibiotic. This is a case of a 62-year-old Caucasian female, who presented with acute onset severe painless jaundice, nausea, vomiting, and pruritus of less than 1-week duration. She had completed a course of amoxicillin-clavulanic acid 3 weeks prior to presentation. A careful history pointed to this simple diagnosis. It may be easily missed without an in-depth history and the patient may be subjected to unnecessary expensive tests. This case is reported to highlight cost conscious care by keeping in mind a rare side effect of the commonly used antibiotic. PMID- 29026494 TI - Correction: The Effect of Lifestyle Changes on Blood Pressure Control among Hypertensive Patients. AB - [This corrects the article on p. 173 in vol. 38, PMID: 28775806.]. PMID- 29026495 TI - Recombinant production and affinity purification of the FraC pore forming toxin using hexa-His tag and pET expression cassette. AB - OBJECTIVES: A newly-introduced protein toxin from a sea anemone, namely fragaceatoxin C is a protein with molecular weight of 20 kDa and pore-forming capability against cell membranes has recently grasped great attentions for its function. In this study, its coding sequence cloned as a fusion protein with His tag for simple production and rapid purification. MATERIALS AND METHODS: After PCR amplification using NcoI and HindIII-harboring primers, the gene fragment was cloned into pET-28a(+). Escherichia coli BL21 was used for expression of constructed vector and toxin expression was verified by SDS-PAGE. For one-step purification Ni-NTA sepharose affinity chromatography was employed. For examination of purified toxin function, RBC hemolytic test was conducted. RESULTS: The results showed that the FraC-coding gene was successfully cloned between NcoI and HindIII restriction sites and purified with affinity chromatography. Densitometric analysis represented the purity of approximately 97%. Hemolytic test indicated the purified FraC had remarkable lytic activity on RBC and almost lysed 50% of cells at the concentration value of 6.25 nM. CONCLUSION: The results indicated that not only purified toxin preserved its activity during expression and purification processes but also exerted its function at lower concentrations so that even the 0.09 nM displayed hemolytic effect. PMID- 29026496 TI - The effects of gestational and lactational exposure to Nonylphenol on c-jun, and c-fos expression and learning and memory in hippocampus of male F1 rat. AB - OBJECTIVES: To investigate the effects of Nonylphenol (NP) in pups from dams exposed during gestational and lactational periods on immediate early genes (c jun, c-fos) in hippocampus and the learning and memory of F1 rats. MATERIALS AND METHODS: Twenty eight pregnant dams, stratified by pregnancy date, were randomly assigned into 4 groups, which were gavaged with NP at the doses of 50 mg/kg/day, 100 mg/kg/day, 200 mg/kg/day and groundnut oil, respectively. Step-down avoidance test, and learning and memory effects of NP were evaluated on 8-weeks-old pups. The expressions of c-jun and c-fos and the activities of choline acetyltransferase (ChAT) and acetylcholinesterase (AchE) were evaluated in hippocampus of pups. RESULTS: Compared to the control, reaction time (RT) that pups spent to jump to the platform was longer (P=0.02), the number of errors were higher (P=0.01), and the step-down latency was shorter in the 200 mg/kg/day NP treated group (P=0.04). Exposure to NP induced a significant reduction in ChAT activity in hippocampus in the 100 (P=0.005) and 200 mg/kg/day NP-treated groups (P=0.002), whereas exposure to 200 mg/kg/day caused a significant increase in AchE activity (P=0.004); a dose-response relationship was revealed between ChAT and AchE activities and NP exposure in the hippocampus of pups (r=-0.821, P=0.01; r=0.757, P=0.04). Exposure to NP in the 100 and 200 mg/kg/day NP-treated groups exhibited an increase in number of c-fos and c-jun positive cells. CONCLUSION: Exposure to NP might negatively affect learning and memory ability in F1 rats, possibly due to the alterations in the expression of c-jun and c-fos, and ChAT, AchE activities in hippocampus of pups. PMID- 29026497 TI - Methadone Replacement Therapy and Sexual Disorders among Opium Dependent Iranian Men: A Meta-Analysis Study. AB - BACKGROUND: Evaluation of sexual disorders among persons receiving methadone replacement therapy is of great importance, because these problems may lead to non-compliance and relapse. This study aimed to estimate the effect of methadone maintenance therapy (MMT) on sexual function among addicted Iranian men using met analysis. METHODS: Investigating the available data banks, relevant studies were identified. After exclusion of duplicates, irrelevant papers and low quality articles, eligible papers were entered into the meta-analysis. Prevalence and standardized mean difference of sexual function scores were illustrated by forest plots based on sexual desire, orgasm and erectile function. FINDINGS: During the primary search, 5341 evidences were identified. After application of the inclusion/exclusion criteria and quality assessment, nine papers were detected eligible for final meta-analysis. Total prevalence [95% confidence intervals (CI)] of sexual disorders and erectile dysfunction among Iranian men under methadone therapy were estimated as 66.3% (27.1-105.5) and 77.5% (61.9-93.1), respectively. The standardized mean differences (95% CI) of Sexual desire, orgasm and erection before and after methadone therapy were estimated as 0.16 (-0.68, 0.99), -0.01 (-0.75, 0.74) and 0.11 (-0.41, 0.64), respectively. CONCLUSION: This meta-analysis showed that methadone therapy did not significantly influence the sexual desire, erectile function and orgasm among opium dependent men. PMID- 29026498 TI - A Case-Control Study of Comparison of Plasma Levels of Matrix Metalloproteinase-9 in Inhaled Opium Addicts and Clinically Healthy Persons. AB - BACKGROUND: Metalloproteinase-9 exists in the basement membrane of normal tissues and is a major factor in cancer invasion and lymphatic metastasis. Smoking has been reported to increase the metalloproteinase level, but the role of opium consumption in metalloproteinase level has not yet been examined. The current research intended to examine the impacts of opium consumption on the serum levels of metalloproteinase. METHODS: This case-control research was conducted in Kerman (in the southeast of Iran), after getting medical approve by the ethics committee. Case group of 33 non-smokers with no active inflammatory diseases who had the experience of inhaled opium and its derivatives were compared with a control group of 40 non-smokers with no active inflammatory disease and no experience of inhaled opium and its derivatives. Student's t-test, mean, and chi square test were employed to determine the correlation between the variables. FINDINGS: No statistically meaningful variation was detected in plasma metalloproteinase concentration between the case and control groups (P = 0.160). Also, there was no significant relation between the plasma metalloproteinase concentration and urinary morphine in case groups (P = 0.410), but a statistically significant correlation was found between gender and metalloproteinase in both the case and control groups (P = 0.003). CONCLUSION: According to the possible role of opioid drugs in cancer and its prognosis both directly and through their impact on serum levels of metalloproteinase, further studies are suggested. PMID- 29026499 TI - Comparison between Homocysteine, Fibrinogen, PT, PTT, INR and CRP in Male Smokers with/without Addiction to Opium. AB - BACKGROUND: Regarding the limited studies about effects of addiction on coagulation factors as a risk factor for increasing coagulation, and its relation to coronary artery disease, we decided to investigate the effect of opium on inflammatory and coagulation factors in a controlled setting. METHODS: This case control study was performed using two groups of smoking males addicted to opium (27 cases) and not addicted to opium (27 cases). After collecting demographic data, venous blood samples were gathered and sent to laboratory for measuring homocysteine, fibrinogen, prothrombin time (PT), partial thromboplastin time (PTT), International Normalized Ratio (INR), and C-reactive protein (CRP) quantity. In order to analyze the data, we used independent t-test plus Mann Whitney test with significance level of P < 0.05. FINDINGS: The average age in this study was 32.2 +/- 6.2 in case group and 33.3 +/- 6.2 in control group. Comparing case and control groups regarding age and education showed no significant difference (P = 0.598 and P = 0.848, respectively). Mean daily smoking in case group was 7.9 +/- 5.4 and 8.1 +/- 5.0 in control group. Mean smoking duration in case group and control group was 10.1 +/- 6.5 and 9.0 +/- 7.2 years, respectively. There was no significant difference between two groups regarding smoking duration (P = 0.567). Comparison of inflammatory and coagulation factors showed no significant difference except for CRP and fibrinogen for which P = 0.661 and P = 0.889, respectively. Consumption-based comparison of inflammatory and coagulation factors showed no significant difference except for PT in oral and inhaled consumptions which showed a significant difference (P = 0.035). CONCLUSION: Results of this study suggest that opium addiction can be an influential factor in blood parameters and can lead to inflammatory and coagulation processes complications. PMID- 29026500 TI - Effectiveness of Resilience Training on Ego-control and Hardiness of Illicit Drug Users. AB - BACKGROUND: The aim of this research was to determine the effectiveness of resilience training upon ego-control and hardiness of the addicted persons. METHODS: This was a semi-experimental study with pretest and posttest control groups which was conducted in Sari, Iran, during 2014-2015. Thirty persons were selected among 240 illicit drug users who underwent screening. Resilience training was performed in ten sessions for the experimental group. The Kobasa hardiness questionnaire and self-restraint scale (SRS) were used for data collection and multivariate covariance test was performed for data analysis. FINDINGS: According to the data, ego-control and hardiness of participants were improved significantly by resilience training (P < 0.001). CONCLUSION: Resilience training is effective upon the rate of ego-control and self-restraint and hardiness. This method can be used in addiction treatment clinics and residential centers. PMID- 29026501 TI - Typology of Street Substance Users' Communities in Tehran, Iran. AB - BACKGROUND: There are different street substance users' communities (SSUCs). Typology of SSUCs in Tehran, Iran was approached in this qualitative study. METHODS: Using content analysis and saturation principles, 22 street-outreach workers were recruited and interviewed. Data were analyzed using open, axial, and selective coding. FINDINGS: Three types of SSUCs were identified. SSUCs were different in geographic location, the community hierarchy, roles of residents and its function during a 24-hour period. Type 1: surrounded naturally by trees, mountains etc. or located in places like canals that make them not simply reachable, a nonresident smuggler (or a small group of smugglers) has the most power in its hierarchy, works 24 hours with at least two shifts, structured with special roles (nonresident smuggler, the Balancer, sex-worker, seller, armed guard, resident substance users and nonresident costumers). Type 2: mostly located in the city gardens, several nonresident smugglers with limited power, works 16 hours or less in a day, semi-structured with roles of nonresident drug dealer, sex-worker, resident substance users and nonresident costumers. Type 3: houses that their landlords are the resident drug dealers and let the costumers to use drug in the house. The substance users have to leave the house after using drug. The house is open less than 24 hours a day. CONCLUSION: Strategies for delivering harm reduction services in different types of SSUCs should be modified according to characteristics of these communities. PMID- 29026502 TI - Sexual Risk Behaviors and Condom Use Barriers in Iranian Men with Substance Use Disorders. AB - BACKGROUND: We aimed to investigate risky sexual behaviors (RSBs) and condom use barriers in Iranian men with substance use disorders (SUDs). METHODS: Of the total 1800 outpatient drug free (ODF) and methadone maintenance treatment program (MMTP) active centers in Tehran, Iran, six were selected to participate in the current study. Data were collected (n = 300 men) using three questionnaires including a demographic questionnaire, the Risky Sexual Behavior Questionnaire (RSBQ), and the Condom Barriers Scale (CBS). The statistical software R, analysis of variance post hoc and multivariate analysis of variance (MANOVA) logistic regression tests were used in data analysis. FINDINGS: The majority, (n = 194, 64.7%) reported at least one lifetime episode of RSBs. Compared to married participants (23.1%), 88.5% of single and 87.0% of divorced men had a history of RSB. Generally, the lowest and highest subscale scores of the CBS were related to sexual experience (2.60 +/- 0.71) and access/availability structure (3.77 +/- 0.54), respectively. The results of MANOVA analysis showed that there was a statistically significant difference between the CSB subscales based on the participants' education and marital status (P < 0.001). Only the partner barrier subscale had a significant negative relationship (P = 0.003) with RSB. CONCLUSION: Sexual dynamic of Iranian men with SUDs is different. Barriers to condom use seem to be socio-culturally determined. Culturally acceptable strategies need to be utilized in Iranian clinical settings reaching beyond simply condom accessibility for this at risk population. PMID- 29026503 TI - Content Analysis of the Concept of Addiction in High School Textbooks of Iran. AB - BACKGROUND: This research sought to determine how well the causes of addiction, addiction harms, and prevention of addiction have been noticed in high school textbooks. METHODS: We used descriptive method to select the main related components of the addiction concept and content analysis method for analyzing the content of textbooks. The study population comprised 61 secondary school curriculum textbooks and study sample consisted of 14 secondary school textbooks selected by purposeful sampling method. The tools for collecting data were "content analysis inventory" which its validity was confirmed by educational and social sciences experts and its reliability has been found to be 91%. About 67 components were prepared for content analysis and were divided to 3 categories of causes, harms, and prevention of addiction. The analysis units in this study comprised phrases, topics, examples, course topics, words, poems, images, questions, tables, and exercises. FINDINGS: Results of the study showed that the components of the addiction concept have presented with 212 remarks in the textbooks. Also, the degree of attention given to any of the 3 main components of the addiction concept were presented as follows: causes with 52 (24.52%) remarks, harm with 89 (41.98%) remarks, and prevention with 71 (33.49%) remarks. CONCLUSION: In high school textbooks, little attention has been paid to the concept of addiction and mostly its biological dimension were addressed while social, personal, familial, and religious dimensions of addiction have been neglected. PMID- 29026504 TI - Loperamide Dependency: A Case Report. AB - BACKGROUND: Loperamide is used as an antidiarrheal drug and is available over-the counter. It cannot pass the blood-brain barrier and it does not have a considerable abuse potential. It can lead to dangerous cardiac arrhythmia. CASE REPORT: Herein, we report a 35-year-old man with a 13-year history of abusing opioids who had undergone detoxification for four times during this period. He underwent detoxification for using 200 mg loperamide daily with anticholinergic agents, clonidine, non-steroidal analgesics, and diazepam. No evidence of arrhythmia was seen in the patient. CONCLUSION: Tolerating high doses of loperamide could be dangerous and increases the risk of fatal cardiac arrhythmias. PMID- 29026505 TI - Indicator for Success of Obesity Reduction Programs in Adolescents: Body Composition or Body Mass Index? Evaluating a School-based Health Promotion Project after 12 Weeks of Intervention. AB - BACKGROUND: Obesity in adolescence is the strongest risk factor for obesity in adulthood. This study aimed to evaluate the effects of a comprehensive lifestyle intervention on different anthropometric indices in 12-16-year-old boy adolescents after 12 Weeks of Intervention. METHODS: A total of 96 male adolescents from two schools participated in this study. The schools were randomly assigned to intervention (53 students) and control school (43 students). Height and weight of students were measured and their body mass index (BMI) was calculated. Body fat percent (BF) and body muscle percent (BM) was assessed using a bioimpedance analyzer considering the age, gender, and height of students at baseline and after intervention. The obesity reduction intervention was implemented in the intervention school based on the Ottawa charter for health promotion. RESULTS: Twelve weeks of intervention decreased BF percent in the intervention group in comparison with the control group (decreased by 1.81% in the intervention group and increased by 0.39% in the control group, P < 0.01). However, weight, BMI, and BM did not change significantly. CONCLUSIONS: The result of this study showed that a comprehensive lifestyle intervention decreased the body fat percent in obese adolescents, although these changes was not reflected in the BMI. It is possible that BMI is not a good indicator in assessment of the success of obesity management intervention. PMID- 29026506 TI - An Analysis of Widely Viewed YouTube Videos on Anal Cancer. AB - BACKGROUND: Rates of anal squamous cell carcinoma have increased over recent decades. The aim of this study was to describe characteristics of widely viewed YouTube videos about anal cancer. METHODS: A total of 57 videos were identified and reviewed. Videos were assessed and coded with respect to date uploaded, upload source, gender of presenter, number of views, length in minutes, number of likes and dislikes, and selected aspects of content. Each video was assessed to determine if the sole purpose of the video was to provide information regarding anal cancer or existed to serve another purpose. Content related to anal cancer was categorized. RESULTS: The mean number of views was 23,548 (range 1014 440,078), and the average length of videos was 8:14 min. The upload source of 57 videos was 19 (33.3%) by consumers, 12 (21.1%) by professional, and 26 (45.6%) by news-based sources. More than half (n = 30; 52.6%) had the sole purpose of providing information. The most frequently mentioned topics were treatment (n = 25, 43.9%), symptoms (n = 15, 26.3%), encouraging screening, human papillomavirus, and pain, respectively (n = 14, 26.4% for each); only 6 of the 57 videos (10.5%) specifically mentioned prevention. None of 57 most widely viewed videos were uploaded by any agency of the U.S. Public Health Service or by any other U.S. governmental agency. CONCLUSIONS: It is important for health practitioners to be aware of the type of information available for their patients on the YouTube platform. PMID- 29026507 TI - Face and Content Validity of the MacArthur Competence Assessment Tool for the Treatment of Iranian Patients. AB - BACKGROUND: There is not a valid Persian tool for measuring the decision-making competency of patients. The aim of this study is to evaluate the face and content validity of the MacArthur Competence Assessment Tool for the treatment of Iranian Persian-speaking patients. METHODS: To assess the validity of the Persian version of the tool, a self-administrated questionnaire was designed. The Lawshe method was also used for assessing each item. Content validity ratio (CVR) and content validity index (CVI) were used to assess the content validity quantitatively. According to the experts' judgment, questions with a CVR >=0.62 and CVR <0.62 were maintainable and unmaintainable, respectively. RESULTS: The questions were designed in a manner to achieve the desirable result (CVR >=0.62). The CVI scale (S-CVI) and CVI (S-CVI/Ave) were 0.94 (higher than 0.79). Thus, the content validity was confirmed. CONCLUSIONS: Since capacity assessments are usually based on physician's subjective judgment, they are likely to bias and therefore, with this suitably validated tool, we can improve judgment of physicians and health care providers in out- and in-patient cases. PMID- 29026508 TI - The association between maternal use of folic acid supplements during pregnancy and risk of autism spectrum disorders in children: a meta-analysis. AB - Previous reviews have been conducted to evaluate the association between maternal use of folic acid supplements during pregnancy and risk of autism spectrum disorders (ASD) in children, with no definitive conclusion. We therefore conducted a more comprehensive meta-analysis to reassess the relationship between folic acid and the risk of ASD. The electronic databases PubMed, Web of Knowledge, and Wanfang Data were carefully searched to find eligible studies as recent as March 2017. A random effects model was used to combine the relative risk (RR) with 95% confidence intervals (CI). Sensitivity analysis and publication bias were conducted. A total of 12 articles with 16 studies comprising 4514 ASD cases were included in this report. It was found that supplementation with folic acid during pregnancy could reduce the risk of ASD [RR = 0.771, 95% CI = 0.641-0.928, I2 = 59.7%, Pheterogeneity = 0.001] as compared to those women without folic acid supplementation. The associations were significant among Asian, European, and American populations. In summary, this comprehensive meta-analysis suggested that maternal use of folic acid supplements during pregnancy could significantly reduce the risk of ASD in children regardless of ethnicity, as compared to those women who did not supplement with folic acid. PMID- 29026509 TI - Development and evaluation of a speech-generating AAC mobile app for minimally verbal children with autism spectrum disorder in Mainland China. AB - BACKGROUND: Mobile touchscreen devices are currently being used as speech generating devices (SGDs) and have been shown to promote the communication skills, particularly the requesting skills of children with autism spectrum disorders (ASD) who have limited spoken language. However, no augmentative and alternative communication (AAC) mobile app has been developed and evaluated in the Chinese language in Mainland China. METHODS: We developed an AAC mobile app, which is the first in Mainland China, to our knowledge, named Yuudee (Chinese name (xiaoyudi)). Yuudee was developed using the Objective-C and Java programming languages. A five-phase training protocol for making requests using Yuudee was developed based on the Picture Exchange Communication System. We trained ten minimally verbal children with ASD to make requests using Yuudee and evaluated the effectiveness of the training. RESULTS: Yuudee has a built-in library of over 400 pictures with corresponding spoken phrases that are divided into 39 categories ranging from making simple requests to expressing emotions. An additional important feature of Yuudee is its customization functions that allow a parent or trainer to easily select pictures and phrases to display, create new pictures and phrases, and change the layouts and orders of the pictures to fit the personal needs of each child. Yuudee is freely available in an iOS version from the iTunes App Store (https://itunes.apple.com/cn/app/xiao-yu di/id794832934?mt=8) and in an Android version from Google Play (https://play.google.com/store/apps/details?id=com.supersuperstar.yuudee.vue) and domestic Chinese Android App stores. Three consecutive unprompted successful responses, which were defined as an initial training success, were achieved in at least three of the five phases for all ten of the evaluated children. The accuracy rate of a given phase was calculated for each child who achieved three consecutive unprompted successful responses in the phase. Seven children achieved at least 50% accuracy in at least two of the five phases. The other three children achieved at least 50% accuracy in only one phase. Two children achieved at least 50% accuracy in all of the phases in which they were trained. CONCLUSIONS: Our data suggest that Yuudee is a useful tool for helping minimally verbal children with ASD make requests. PMID- 29026510 TI - A novel system for tracking social preference dynamics in mice reveals sex- and strain-specific characteristics. AB - BACKGROUND: Deciphering the biological mechanisms underlying social behavior in animal models requires standard behavioral paradigms that can be unbiasedly employed in an observer- and laboratory-independent manner. During the past decade, the three-chamber test has become such a standard paradigm used to evaluate social preference (sociability) and social novelty preference in mice. This test suffers from several caveats, including its reliance on spatial navigation skills and negligence of behavioral dynamics. METHODS: Here, we present a novel experimental apparatus and an automated analysis system which offer an alternative to the three-chamber test while solving the aforementioned caveats. The custom-made apparatus is simple for production, and the analysis system is publically available as an open-source software, enabling its free use. We used this system to compare the dynamics of social behavior during the social preference and social novelty preference tests between male and female C57BL/6J mice. RESULTS: We found that in both tests, male mice keep their preference towards one of the stimuli for longer periods than females. We then employed our system to define several new parameters of social behavioral dynamics in mice and revealed that social preference behavior is segregated in time into two distinct phases. An early exploration phase, characterized by high rate of transitions between stimuli and short bouts of stimulus investigation, is followed by an interaction phase with low transition rate and prolonged interactions, mainly with the preferred stimulus. Finally, we compared the dynamics of social behavior between C57BL/6J and BTBR male mice, the latter of which are considered as asocial strain serving as a model for autism spectrum disorder. We found that BTBR mice (n = 8) showed a specific deficit in transition from the exploration phase to the interaction phase in the social preference test, suggesting a reduced tendency towards social interaction. CONCLUSIONS: We successfully employed our new experimental system to unravel previously unidentified sex- and strain-specific differences in the dynamics of social behavior in mice. Thus, the system presented here facilitates a more thorough and detailed analysis of social behavior in small rodent models, enabling a better comparison between strains and treatments. PMID- 29026511 TI - Both seed germination and seedling mortality increase with experimental warming and fertilization in a subarctic tundra. AB - Climate change is expected to force many species in arctic regions to migrate and track their climatic niche. This requires recruitment from seed, which currently shows very low rates in arctic regions, where long-lived and vegetatively reproducing plants dominate. Therefore, we pose the question whether recruitment (germination and seedling establishment) in arctic regions will significantly improve in a warmer world, and thus allow species to follow their climatic niche. We used a full factorial experiment to examine if realistic warmer temperatures (+3 degrees C; infrared radiation) and increased nitrogen availability (+1.4 g N m-2 year-1) affected germination, seedling survival and above- and below-ground seedling biomass in five species common in subarctic regions (Anthoxanthum odoratum, Betula nana, Pinus sylvestris, Solidago virgaurea, Vaccinium myrtillus). We found that warming increased seedling emergence in all species, but that subsequent mortality also increased, resulting in no net warming effect on seedling establishment. Warming slightly increased above-ground seedling biomass. Fertilization, on the other hand, did not influence seedling biomass, but it increased seedling establishment in B. nana while it reduced establishment in V. myrtillus. This may help B. nana dominate over V. myrtillus in warmer tundra. Surprisingly, no interactive effects between warming and fertilization were found. The lack of a general positive response of seedling establishment to warmer and more nutrient-rich conditions suggests that (sub)arctic species may experience difficulties in tracking their climatic niche. Predictions of future species distributions in arctic regions solely based on abiotic factors may therefore overestimate species' ranges due to their poor establishment. Also, the opposite response to fertilization of two key (sub)arctic dwarf shrubs, i.e. B. nana and V. myrtillus, could have important implications for the future development of arctic plant communities and argues for more research into the role of fertilization for plant establishment. PMID- 29026512 TI - The phyllochron of well-watered and water deficit mature peach trees varies with shoot type and vigour. AB - The branch construction of trees is based on phytomers, repetitive subunits defined as node + leaf + axillary meristem + internode. The rate at which phytomers are added to a shoot is termed the phyllochron, which is determined by genetics, endogenous regulation and environmental conditions. The phyllochron is fundamental to understanding the growth of plants. Most phyllochron studies on woody species are of young plants under controlled conditions without consideration for different types of shoots that are present in mature trees. In this 2-year field study, we investigated seasonal patterns of phyllochron development on both proleptic and epicormic shoots of mature peach trees (Prunus persica) exposed to two irrigation treatments. One treatment was not irrigated until significant stress was detected via water potential by pressure bombing. In the second treatment trees were normally irrigated with ~5.84 cm of water each week to match evapotranspirational loss. Midday stem water potential readings were regularly collected to assess the level of water stress experienced by the trees. Measurements of individual leaves and their corresponding internodes were taken along tagged proleptic and epicormic shoots three times per week from the beginning to the end of two growing seasons. Leaf measurements were used to calculate the phyllochron. The phyllochron increased as the season progressed. This increase could not be explained by traditionally accepted effects of temperature or light. The more vigorous epicormic shoots added leaves significantly faster than proleptic shoots on trees in both water deficit and normally irrigated treatments. Additionally, epicormic shoots produced leaves with significantly greater leaf length and leaf area. Midday stem water potentials were more negative in trees in the water deficit treatments only after proleptic shoots stopped growing. The phyllochron did increase while leaf length and leaf area decreased on epicormic shoots of deficit irrigated trees in the 2010 growing season. The phyllochron of both shoot types gradually increased over the season, which was primarily due to an endogenous rank or shoot ageing effect. Differences between shoot types indicate that the phyllochron is variable among shoots on the same tree and is associated with shoot vigour. Water deficit increased the phyllochron and over all shoot growth rate. PMID- 29026514 TI - Longstanding unilateral dislocation of the temporomandibular joint in a 6-year old girl. AB - Unilateral longstanding dislocation of the temporomandibular joint (TMJ) is rare in children. These patients may demonstrate some function in opening and closing of the mouth due to the formation of a pseudo-joint in the dislocated position. In this report we describe a case of longstanding unilateral dislocation of the TMJ in a 6-year-old girl, highlighting the diagnostic difficulty and management of the condition. PMID- 29026513 TI - Quantification of monoterpene emission sources of a conifer species in response to experimental drought. AB - Monoterpene (MT) emissions of conifer tree species, emitted from de novo synthesis and storage pools, play an important role in plant ecology and physiology. During drought stress both emission sources are affected differently and with conventional measuring techniques they are difficult to separate. We investigated 13C labelled MT emission of eight 3-year-old Scots pine seedlings in a drought stress experiment using a dynamic gas exchange chamber system (Tree DEMON). Monoterpene, water vapour and CO2 gas exchange were measured for a 2-day normal watering, a 11-day treatment and a 3-day re-watering period. In each period all trees were 13C labelled once for 5 h. Results showed the expected decrease of MT, water vapour and CO2 gas exchange with decreasing soil water content. However, during re-watering water vapour and CO2 gas exchange recovered fast to pre-drought levels, whereas MT increased to a lower level compared to the initial non-stressed phase. The 13C labelling showed highly variable %13C values for different MTs, which ranged compound-specific from 0.5 to 95 % for unstressed trees. Overall, around 36 +/- 5 % of the total emission rate originated from de novo synthesized MTs during the 2-day prior to stress period. During full drought, the de novo fraction was reduced to 3 %. For the re-watering phase de novo emissions recovered only partly to 20 %, while pool emissions reached pre drought conditions. Thus, emissions of de novo synthesized MTs of Scots pine are down-regulated by soil drought rather than MT emissions from pools. PMID- 29026515 TI - Intussusception as a complication of bariatric surgery in pregnant patients: report of one case and revision of the literature. AB - Occlusive complications after a laparoscopic Roux-in Y gastric bypass (LRYGB), appear mainly as fibrous membranes of wounds, internal hernias or intussusception. Intussusception after a bariatric surgery occurs in 0.1-0.3% of the cases. We present a case of intussusception in a pregnant patient after a LRYGB. PMID- 29026516 TI - Ascending cholangitis: rare presentation of a ruptured right-sided renal angiomyolipoma. AB - We report the case of a 46-year-old female who presented to the Emergency Department with acute, painful obstructive jaundice, with evidence of secondary ascending cholangitis. Surprisingly, imaging revealed the clinical picture to be caused not by hepatobiliary pathology, but by external compression of the biliary tree from a ruptured renal angiomyolipoma (AML) of the right kidney. The patient remained haemodynamically stable and conservative management saw resolution of biliary obstruction. We believe this to be the first report of a renal AML presenting in this way. This report highlights the diverse spectrum of presentations of renal angiomyolipomas. PMID- 29026517 TI - Dermatofibrosarcoma protuberans coexisting in a patient with a vascular malformation-a rare coincidence. AB - Dermatofibrosarcoma protuberans with fibrosarcomatous differentiation (DFSP-FS) is a rare soft tissue tumor with more aggressive behavior and it is not clear what causes this type of skin cancer. We describe the case of a 48-year-old woman who was born with a vascular malformation in the sternal region and presented suddenly with a soft tissue sarcoma (DFSP-FS) in the same territory. She was initially treated by embolization as the sarcoma was misdiagnosed but the tumor within 6 months seemed to be growing rapidly and reached a giant dimension with ulceration and required surgical intervention. The patient underwent a surgical removal of the mass but as the pathology report included a DFSP-FS with close margins,a second operation was required. A wide local excision was performed and reconstruction of defect by using bilateral pectoralis major muscle flaps and a full thickness skin graft from the abdominal wall. Post operatively the patient was treated with radiotherapy. PMID- 29026518 TI - Castleman's disease: a rare presentation in a retroperitoneal accessory spleen, treated with a minimally invasive robotic approach. AB - Unicentric Castleman's disease (UCD) is a rare disorder of unknown etiology characterized by localized lymphoid tissue proliferation and interfollicular hypervascularity. A 33-year-old Caucasian female presented with vague abdominal discomfort and pain with pressure. Ultrasound and computed tomography detected a large peripancreatic mass. Robotic-assisted resection of the mass along with en bloc dissection of the encased left adrenal gland was done. Frozen section examination confirmed UCD hyaline vascular variant in a retroperitoneal accessory spleen. Preoperative diagnosis of UCD is difficult due to its lack of specific symptoms and its cytologic similarity to reactive lymphadenopathy and other lymphoproliferative disorders. Surgical resection is standard treatment and provides the pathological specimen required for diagnostic confirmation. Here, robotic-assisted laparoscopy allowed visualization, mobilization, precise resection and extraction of the mass from a difficult to access retroperitoneal region. PMID- 29026519 TI - Squamous cell carcinoma arising in familial gingival fibromatosis-a rare case report. AB - Familial gingival fibromatosis is a rare hereditary condition due to chromosomal abnormality which can occur as an isolated disease or as part of a syndrome and has an incidence of 1:350 000. This condition leads to esthetic, functional, psychological and masticatory disturbance of the oral cavity. Here, we present a case of 21-year-old female with severe enlargement of gums in maxilla and mandible. Deciduous teeth were erupted at normal age but the permanent teeth in the oral cavity were not erupted. Her grandmother, father and younger sister were also affected with the same condition. Incisional biopsy from the chronic ulcerated gingiva showed squamous cell carcinoma. Patient was referred to other cancer institution, where metastases to lung, bone and lymph node was detected on CT scan. The diagnosis was made based on clinical examination, family history and histopathological examination. PMID- 29026520 TI - Work related musculoskeletal injuries sustained by Australian osteopaths: qualitative analysis of effects on practitioner health, clinical practice, and patient care. AB - BACKGROUND: There is limited literature that explores the experiences of osteopaths injured while engaging in clinical practice. Evidence from other similar health professions has described the numerous effects of work-related musculoskeletal injuries (WRMI). Work-related musculoskeletal injury refers to trauma to joints, ligaments, muscles and tendons resulting from injury sustained while undertaking work duties. This research aimed to gain a contextualised understanding of the experiences of osteopaths who have sustained a work-related musculoskeletal injury while performing clinical practice. METHOD: This research used a descriptive qualitative design. Participants were recruited as part of a larger cross-sectional study. Thirteen Australian osteopaths who had sustained a work-related musculoskeletal injury consented to participate in semi-structured interviews during May and June 2016. Thematic analysis was used to elicit important themes from the interview transcripts that had been recorded and transcribed verbatim. The qualitative accounts provided by the participants were coded for the impacts of their injuries on work, home life and leisure activities. RESULTS: The participants provided detailed, contextual information about their injuries, including the contributing factors and the experience of living with a WRMI. The findings indicate that injured osteopaths often continue working because of financial commitments and their dedication to patient care. The participants offered insights into the challenges they faced due to the injury and the management strategies they used to deal with the impact on their work and personal life. The injuries were mostly unreported, the burden being carried by the participants and their families. CONCLUSION: This is the first research that explores the experiences of osteopaths who have sustained a WRMI. We anticipate that this research will encourage a broad and constructive discussion within the profession of the issues associated with WRMIs, including risk minimisation and injury prevention. Further research is warranted to understand the relationship between osteopaths training in ergonomics and injury prevention. This would lead to the development of guidelines and educational curricula addressing safe work for osteopaths. PMID- 29026521 TI - A novel data storage logic in the cloud. AB - Databases which store and manage long-term scientific information related to life science are used to store huge amounts of quantitative attributes. Introduction of a new entity attribute requires modification of the existing data tables and the programs that use these data tables. The solution is increasing the virtual data tables while the number of screens remains the same. The main objective of the present study was to introduce a logic called Joker Tao (JT) which provides universal data storage for cloud-based databases. It means all types of input data can be interpreted as an entity and attribute at the same time, in the same data table. PMID- 29026522 TI - Accurate cytogenetic biodosimetry through automated dicentric chromosome curation and metaphase cell selection. AB - Accurate digital image analysis of abnormal microscopic structures relies on high quality images and on minimizing the rates of false positive (FP) and negative objects in images. Cytogenetic biodosimetry detects dicentric chromosomes (DCs) that arise from exposure to ionizing radiation, and determines radiation dose received based on DC frequency. Improvements in automated DC recognition increase the accuracy of dose estimates by reclassifying FP DCs as monocentric chromosomes or chromosome fragments. We also present image segmentation methods to rank high quality digital metaphase images and eliminate suboptimal metaphase cells. A set of chromosome morphology segmentation methods selectively filtered out FP DCs arising primarily from sister chromatid separation, chromosome fragmentation, and cellular debris. This reduced FPs by an average of 55% and was highly specific to these abnormal structures (>=97.7%) in three samples. Additional filters selectively removed images with incomplete, highly overlapped, or missing metaphase cells, or with poor overall chromosome morphologies that increased FP rates. Image selection is optimized and FP DCs are minimized by combining multiple feature based segmentation filters and a novel image sorting procedure based on the known distribution of chromosome lengths. Applying the same image segmentation filtering procedures to both calibration and test samples reduced the average dose estimation error from 0.4 Gy to <0.2 Gy, obviating the need to first manually review these images. This reliable and scalable solution enables batch processing for multiple samples of unknown dose, and meets current requirements for triage radiation biodosimetry of high quality metaphase cell preparations. PMID- 29026523 TI - Medical support during an Ironman 70.3 triathlon race. AB - BACKGROUND: The Ironman 70.3 race is also called a half Ironman, and consists of 1.9 km of swimming, 90.1 km of cycling, and 21.1 km of running. The authors provide practical insights that may be useful for medical support in future events by summarizing the process and results of on-scene medical care. METHODS: The medical post was established at the transition area between the cycling and running courses, which was close to the finish line, and staffed with the headquarters team comprised of an emergency physician, an EMT, two nurses, and an ambulance with a driver. The other five ambulances were located throughout the course. The medical staff identified participants according to their numbers when providing medical support, and described complaints, treatment provided, and disposition. When treating non-participants, gender and age were recorded instead of numbers. The treatment records were analyzed after the race. RESULTS: The medical team treated a total of 187 participants. One suffered cramps in the calf muscles during the swimming part of the course. Nineteen were treated for injuries suffered during the cycling race. A total of 159 were treated for injuries on the running course. Five casualties, all of which occurred during the cycling race, required transport to hospital. CONCLUSIONS: Medical directors preparing medical support during a triathlon event should expect severe injuries in the cycling course. In hot climates, staff may also suffer from heat injuries as well as runners, and proper attention should be paid to these risks. PMID- 29026525 TI - Recent advances in understanding and prevention of sudden cardiac death. AB - There have been tremendous advances in the diagnosis and treatment of heart disease over the last 50 years. Nevertheless, it remains the number one cause of death. About half of heart-related deaths occur suddenly, and in about half of these cases the person was unaware that they had underlying heart disease. Genetic heart disease accounts for only approximately 2% of sudden cardiac deaths, but as it typically occurs in younger people it has been a particular focus of activity in our quest to not only understand the underlying mechanisms of cardiac arrhythmogenesis but also develop better strategies for earlier detection and prevention. In this brief review, we will highlight trends in the recent literature focused on sudden cardiac death in genetic heart diseases and how these studies are contributing to a broader understanding of sudden death in the community. PMID- 29026524 TI - Beyond adhesion: emerging roles for integrins in control of the tumor microenvironment. AB - While integrins were originally discovered as cell adhesion receptors, recent studies have reinforced the concept that integrins have central roles in cancer that extend far beyond controlling cell adhesion and migration. Indeed, as transmembrane cell surface receptors that occupy a critical position at the interface of cellular and extracellular interactions and are capable of both "inside-out" and "outside-in" signaling, integrins are uniquely poised to regulate the cell's ability to promote, sense, and react to changes in the tumor microenvironment. Moreover, integrins are present on all cell types in the tumor microenvironment, and they have important roles in regulating intercellular communication. Decades of promising pre-clinical studies have implicated certain integrins as attractive therapeutic targets in the cancer clinic. Nevertheless, results of the few clinical trials that target integrins in cancer have thus far been disappointing. Importantly, these clinical failures likely reflect the emerging complexity of individual and combinatorial integrin function within both tumor cells and other cell types of the tumor microenvironment, together with a need to explore integrin-targeting agents not just as monotherapies but also as adjuvants to more conventional radiotherapies or chemotherapies. In this review, we will examine recent advances toward understanding how integrins regulate cancer progression, including their roles in intercellular communication and modulation of the tumor microenvironment. Additionally, we will discuss factors that underlie the limited efficacy of current efforts to target integrins in the cancer clinic as well as potential strategies to overcome these challenges. PMID- 29026526 TI - Recent advances in cerebral oximetry. Assessment of cerebral autoregulation with near-infrared spectroscopy: myth or reality? AB - In recent years, the feasibility of near-infrared spectroscopy to continuously assess cerebral autoregulation has gained increasing interest. By plotting cerebral oxygen saturation over blood pressure, clinicians can generate an index of autoregulation: the cerebral oximetry index (COx). Successful integration of this monitoring ability in daily critical care may allow clinicians to tailor blood pressure management to the individual patient's need and might prove to be a major step forward in terms of patient outcome. PMID- 29026527 TI - Recent advances in in vitro fertilization. AB - The field of assisted reproductive technology is rapidly progressing with many new advances in the last decade. The present review discusses methods to improve oocyte quality in older women and new stimulation protocols that may improve the number of mature oocytes retrieved during an in vitro fertilization cycle. We will discuss the present use of pre-implantation genetic screening (PGS) and finally focus on some new methods to determine endometrial receptivity. The focus of this review is to point out areas of technology that may be controversial or are new enough to require proper controlled studies for validation. PMID- 29026528 TI - Protein clustering for cell polarity: Par-3 as a paradigm. AB - The scaffold protein Par-3 ( Drosophila Bazooka) is a central organizer of cell polarity across animals. This review focuses on how the clustering of Par-3 contributes to cell polarity. It begins with the Par-3 homo-oligomerization mechanism and its regulation by Par-1 phosphorylation. The role of polarized cytoskeletal networks in distributing Par-3 clusters to one end of the cell is then discussed, as is the subsequent maintenance of polarized Par-3 clusters through hindered mobility and inhibition from the opposite pole. Finally, specific roles of Par-3 clusters are reviewed, including the bundling of microtubules, the cortical docking of centrosomes, the growth and positioning of cadherin-catenin clusters, and the inhibition of the Par-6-aPKC kinase cassette. Examples are drawn from Drosophila, Caenorhabditis elegans, mammalian cell culture, and biochemical studies. PMID- 29026529 TI - Coordinating ERK signaling via the molecular scaffold Kinase Suppressor of Ras. AB - Many cancers, including those of the colon, lung, and pancreas, depend upon the signaling pathways induced by mutated and constitutively active Ras. The molecular scaffolds Kinase Suppressor of Ras 1 and 2 (KSR1 and KSR2) play potent roles in promoting Ras-mediated signaling through the Raf/MEK/ERK kinase cascade. Here we summarize the canonical role of KSR in cells, including its central role as a scaffold protein for the Raf/MEK/ERK kinase cascade, its regulation of various cellular pathways mediated through different binding partners, and the phenotypic consequences of KSR1 or KSR2 genetic inactivation. Mammalian KSR proteins have a demonstrated role in cellular and organismal energy balance with implications for cancer and obesity. Targeting KSR1 in cancer using small molecule inhibitors has potential for therapy with reduced toxicity to the patient. RNAi and small molecule screens using KSR1 as a reference standard have the potential to expose and target vulnerabilities in cancer. Interestingly, although KSR1 and KSR2 are similar in structure, KSR2 has a distinct physiological role in regulating energy balance. Although KSR proteins have been studied for two decades, additional analysis is required to elucidate both the regulation of these molecular scaffolds and their potent effect on the spatial and temporal control of ERK activation in health and disease. PMID- 29026531 TI - Nocturia: consequences, classification, and management. AB - Nocturia is a widespread condition that can negatively impact quality of sleep and overall health. This condition is multifactorial in nature and is best approached through the analysis of frequency volume charts. Through these charts, clinicians may classify each individual case of nocturia into one of four distinct categories: global polyuria, nocturnal polyuria, reduced bladder capacity, and mixed. Treatments should then be tailored to each individual based upon the category of their nocturia. In some cases, appropriate therapy will consist of behavioral modification techniques or addressing underlying systemic diseases. In other cases, medical therapy may be necessary, but, to date, medications have shown limited efficacy at treating nocturia. PMID- 29026530 TI - Recent advances in pericentriolar material organization: ordered layers and scaffolding gels. AB - The centrosome is an unusual organelle that lacks a surrounding membrane, raising the question of what limits its size and shape. Moreover, while electron microscopy (EM) has provided a detailed view of centriole architecture, there has been limited understanding of how the second major component of centrosomes, the pericentriolar material (PCM), is organized. Here, we summarize exciting recent findings from super-resolution fluorescence imaging, structural biology, and biochemical reconstitution that together reveal the presence of ordered layers and complex gel-like scaffolds in the PCM. Moreover, we discuss how this is leading to a better understanding of the process of microtubule nucleation, how alterations in PCM size are regulated in cycling and differentiated cells, and why mutations in PCM components lead to specific human pathologies. PMID- 29026532 TI - Origins and pathogenesis of Middle East respiratory syndrome-associated coronavirus: recent advances. AB - Middle East respiratory syndrome-associated coronavirus (MERS-CoV) has been a significant research focus since its discovery in 2012. Since 2012, 2,040 cases and 712 deaths have been recorded (as of August 11, 2017), representing a strikingly high case fatality rate of 36%. Over the last several years, MERS-CoV research has progressed in several parallel and complementary directions. This review will focus on three particular areas: the origins and evolution of MERS CoV, the challenges and achievements in the development of MERS-CoV animal models, and our understanding of how novel proteins unique to MERS-CoV counter the host immune response. The origins of MERS-CoV, likely in African bats, are increasingly clear, although important questions remain about the establishment of dromedary camels as a reservoir seeding human outbreaks. Likewise, there have been important advances in the development of animal models, and both non-human primate and mouse models that seem to recapitulate human disease are now available. How MERS-CoV evades and inhibits the host innate immune response remains less clear. Although several studies have identified MERS-CoV proteins as innate immune antagonists, little of this work has been conducted using live virus under conditions of actual infection, but rather with ectopically expressed proteins. Accordingly, considerable space remains for major contributions to understanding unique ways in which MERS-CoV interacts with and modulates the host response. Collectively, these areas have seen significant advances over the last several years but continue to offer exciting opportunities for discovery. PMID- 28928964 TI - The evaluation of a virtual education system based on the DeLone and McLean model: A path analysis. AB - Background: The Internet has dramatically influenced the introduction of virtual education. Virtual education is a term that involves online education and e learning. This study was conducted to evaluate a virtual education system based on the DeLone and McLean model. Methods: This descriptive analytical study was conducted using the census method on all the students of the Nursing and Midwifery Department of Alborz University of Medical Sciences who had taken at least one online course in 2016-2017. Data were collected using a researcher-made questionnaire based on the DeLone and McLean model in six domains and then analyzed in SPSS-16 and LISREL-8.8 using the path analysis. Results: The goodness of fit indices (GFI) of the model represent the desirability and good fit of the model, and the rational nature of the adjusted relationships between the variables based on a conceptual model (GFI = 0.98; RMSEA = 0.014).The results showed that system quality has the greatest impact on the net benefits of the system through both direct and indirect paths (beta=0.52), service quality through the indirect path (beta=0.03) and user satisfaction through the direct path (beta=0.73). Conclusions: According to the results, system quality has the greatest overall impact on the net benefits of the system, both directly and indirectly by affecting user satisfaction and the intention to use. System quality should therefore be further emphasized, to use these systems more efficiently. PMID- 29026535 TI - Clinical and molecular characteristics, risk factors and outcomes of Carbapenem resistant Klebsiella pneumoniae bloodstream infections in the intensive care unit. AB - BACKGROUND: To analyze the clinical characteristics and outcomes of carbapenem resistant Klebsiella pneumoniae (CRKp) and carbapenem-susceptible K. pneumoniae (CSKp) bloodstream infections (BSIs), and to study the risk factors for development of CRKp BSI and K. pneumoniae BSI-related mortality. METHODS: A retrospective case control study of patients with K. pneumoniae BSI was conducted in the intensive care unit of the First Affiliated Hospital, Medical of College, Zhejiang University from January 2013 to December 2014. Carbapenem resistance was defined in accordance with the Clinical and Laboratory Standards Institute 2016 guidelines. Risk factors for the development of CRKp BSI and risk factors for mortality due to K. pneumoniae BSI were assessed. Virulence genes were detected by polymerase chain reaction assay. RESULTS: In total, 48 patients were enrolled in the study, including 31 (65%) patients with CRKp BSI and 17 (35%) patients with CSKp BSI. CSKp infection was associated with more severe clinical symptoms, particularly a higher serum creatinine level (165.06 +/- 127.01 in the CSKp group vs. 93.77 +/- 84.35 MUmol/L in the CRKp group, p = 0.039), but there was no significant difference in prognosis between the CSKp and CRKp groups. On multivariate analysis, indwelling central venous catheter (p = 0.045) was the only factor independently associated with CRKp bacteremia. However, the mortality of K. pneumoniae BSI patients was not correlated with carbapenem resistance. In addition, the isolates had diverse clonality and different origins. The frequency of detection of the allS and magA virulence genes was higher in the CSKp group than in the CRKp group (alls p = 0.04; magA p = 0.047). CONCLUSIONS: Patients in the CSKp group experienced more severe clinical symptoms, although mortality did not differ significantly between the CRKp and CSKp groups. An indwelling central venous catheter was the only factor independently associated with CRKp BSI. The mortality of patients with K. pneumoniae BSI was not associated with carbapenem resistance. The frequency of virulence genes was higher in the CSKp group than in the CRKp group. PMID- 29026536 TI - Implementation of central line-associated bloodstream infection prevention bundles in a surgical intensive care unit using peer tutoring. AB - BACKGROUND: Central line-associated bloodstream infections (CLABSIs) can be prevented through well-coordinated, multifaceted programs. However, implementation of CLABSI prevention programs requires individualized strategies for different institutional situations, and the best strategy in resource-limited settings is uncertain. Peer tutoring may be an efficient and effective method that is applicable in such settings. METHODS: A prospective intervention was performed to reduce CLABSIs in a surgical intensive care unit (SICU) at a tertiary hospital. The core interventions consisted of implementation of insertion and maintenance bundles for CLABSI prevention. The overall interventions were guided and coordinated by active educational programs using peer tutoring. The CLABSI rates were compared for 9 months pre-intervention, 6 months during the intervention and 9 months post-intervention. The CLABSI rate was further observed for three years after the intervention. RESULTS: The rate of CLABSIs per 1000 catheter-days decreased from 6.9 infections in the pre intervention period to 2.4 and 1.8 in the intervention (6 m; P = 0.102) and post intervention (9 m; P = 0.036) periods, respectively. A regression model showed a significantly decreasing trend in the infection rate from the pre-intervention period (P < 0.001), with incidence-rate ratios of 0.348 (95% confidence interval [CI], 0.98-1.23) in the intervention period and 0.257 (95% CI, 0.07-0.91) in the post-intervention period. However, after the 9-month post-intervention period, the yearly CLABSI rates reverted to 3.0-5.4 infections per 1000 catheter-days over 3 years. CONCLUSIONS: Implementation of CLABSI prevention bundles using peer tutoring in a resource-limited setting was useful and effectively reduced CLABSIs. However, maintaining the reduced CLABSI rate will require further strategies. PMID- 29026534 TI - Recent advances in hepatic encephalopathy. AB - Hepatic encephalopathy describes the array of neurological alterations that occur during acute liver failure or chronic liver injury. While key players in the pathogenesis of hepatic encephalopathy, such as increases in brain ammonia, alterations in neurosteroid levels, and neuroinflammation, have been identified, there is still a paucity in our knowledge of the precise pathogenic mechanism. This review gives a brief overview of our understanding of the pathogenesis of hepatic encephalopathy and then summarizes the significant recent advances made in clinical and basic research contributing to our understanding, diagnosis, and possible treatment of hepatic encephalopathy. A literature search using the PubMed database was conducted in May 2017 using "hepatic encephalopathy" as a keyword, and selected manuscripts were limited to those research articles published since May 2014. While the authors acknowledge that many significant advances have been made in the understanding of hepatic encephalopathy prior to May 2014, we have limited the scope of this review to the previous three years only. PMID- 29026537 TI - Negative effects of long-term feeding of high-grain diets to lactating goats on milk fat production and composition by regulating gene expression and DNA methylation in the mammary gland. AB - BACKGROUND: It is well known that feeding a high concentrate (HC) diet to lactating ruminants likely induces subacute ruminal acidosis (SARA) and leads to a decrease in milk fat production. However, the effects of feeding a HC diet for long periods on milk fatty acids composition and the mechanism behind the decline of milk fat still remains poorly understood. The aim of this study was to investigate the impact of feeding a HC diet to lactating dairy goats on milk fat yield and fatty acids composition with an emphasis on the mechanisms underlying the milk fat depression. Seventeen mid-lactating dairy goats were randomly allocated to three groups. The control treatment was fed a low-concentrate diet (35% concentrate, n = 5, LC) and there were two high-concentrate treatments (65% concentrate, HC), one fed a high concentrate diet for a long period (19 wks, n = 7, HL); one fed a high concentrate diet for a short period of time (4 wk, n = 5, HS). Milk fat production and fatty acids profiles were measured. In order to investigate the mechanisms underlying the changes in milk fat production and composition, the gene expression involved in lipid metabolism and DNA methylation in the mammary gland were also analyzed. RESULTS: Milk production was increased by feeding the HC diet in the HS and HL groups compared with the LC diet (P < 0.01), while the percentage of milk fat was lower in the HL (P < 0.05) but not in the HS group. The total amount of saturated fatty acids (SFA) in the milk was not changed by feeding the HC diet, whereas the levels of unsaturated fatty acids (UFA) and monounsaturated fatty acids (MUFA) were markedly decreased in the HL group compared with the LC group (P < 0.05). Among these fatty acids, the concentrations of C15:0 (P < 0.01), C17:0 (P < 0.01), C17:1 (P < 0.01), C18:1n-9c (P < 0.05), C18:3n-3r (P < 0.01) and C20:0 (P < 0.01) were markedly lower in the HL group, and the concentrations of C20:0 (P < 0.05) and C18:3n-3r (P < 0.01) were lower in the HS group compared with the LC group. However, the concentrations of C18:2n-6c (P < 0.05) and C20:4n-6 (P < 0.05) in the milk fat were higher in the HS group. Real-time PCR results showed that the mRNA expression of the genes involved in milk fat production in the mammary gland was generally decreased in the HL and HS groups compared with the LC group. Among these genes, ACSL1, ACSS1 & 2, ACACA, FAS, SCD, FADS2, and SREBP1 were down regulated in the mammary gland of the HL group (P < 0.05), and the expressions of ACSS2, ACACA, and FADS2 mRNA were markedly decreased in the HS goats compared with the LC group (P < 0.05). In contrast to the gene expression, the level of DNA methylation in the promoter regions of the ACACA and SCD genes was increased in the HL group compared with the LC group (P < 0.05). The levels of ACSL1 protein expression and FAS enzyme activity were also decreased in the mammary gland of the HL compared with the LC group (P < 0.05). CONCLUSIONS: Long-term feeding of a HC diet to lactating goats induced milk fat depression and FAs profile shift with lower MUFAs but higher SFAs. A general down-regulation of the gene expression involved in the milk fat production and a higher DNA methylation in the mammary gland may contribute to the decrease in milk fat production in goats fed a HC diet for long time periods. PMID- 29026538 TI - Plasma and cerebrospinal fluid interleukin-1beta during lipopolysaccharide induced systemic inflammation in ewes implanted or not with slow-release melatonin. AB - BACKGROUND: Interleukin-1beta (IL-1beta) is important mediator of inflammatory induced suppression of reproductive axis at the hypothalamic level. At the beginning of inflammation, the main source of cytokines in the cerebrospinal fluid (CSF) is peripheral circulation, while over time, cytokines produced in the brain are more important. Melatonin has been shown to decrease pro-inflammatory cytokines concentration in the brain. In ewes, melatonin is used to advance the onset of a breading season. Little is known about CSF concentration of IL-1beta in ewes and its correlation with plasma during inflammation as well as melatonin action on the concentration of IL-1beta in blood plasma and the CSF, and brain barriers permeability in early stage of lipopolysaccharide (LPS)-induced inflammation. METHODS: Systemic inflammation was induced through LPS administration in melatonin- and sham-implanted ewes. Blood and CSF samples were collected before and after LPS administration and IL-1beta and albumin concentration were measured. To assess the functions of brain barriers albumin quotient (QAlb) was used. Expression of IL-1beta (Il1B) and its receptor type I (Il1r1) and type II (Il1r2) and matrix metalloproteinase (Mmp) 3 and 9 was evaluated in the choroid plexus (CP). RESULTS: Before LPS administration, IL 1beta was on the level of 62.0 +/- 29.7 pg/mL and 66.4 +/- 32.1 pg/mL in plasma and 26.2 +/- 5.4 pg/mL and 21.3 +/- 8.7 pg/mL in the CSF in sham- and melatonin implanted group, respectively. Following LPS it increased to 159.3 +/- 53.1 pg/mL and 197.8 +/- 42.8 pg/mL in plasma and 129.8 +/- 54.2 pg/mL and 139.6 +/- 51.5 pg/mL in the CSF. No correlations was found between plasma and CSF IL-1beta concentration after LPS in both groups. The QAlb calculated before LPS and 6 h after was similar in all groups. Melatonin did not affected mRNA expression of Il1B, Il1r1 and Il1r2 in the CP. The mRNA expression of Mmp3 and Mmp9 was not detected. CONCLUSIONS: The lack of correlation between plasma and CSF IL-1beta concentration indicates that at the beginning of inflammation the local synthesis of IL-1beta in the CP is an important source of IL-1beta in the CSF. Melatonin from slow-release implants does not affect IL-1beta concentration in plasma and CSF in early stage of systemic inflammation. PMID- 29026539 TI - The regulation of IMF deposition in pectoralis major of fast- and slow- growing chickens at hatching. AB - BACKGROUND: The lipid from egg yolk is largely consumed in supplying the energy for embryonic growth until hatching. The remaining lipid in the yolk sac is transported into the hatchling's tissues. The gene expression profiles of fast- and slow-growing chickens, Arbor Acres (AA) and Beijing-You (BJY), were determined to identify global differentially expressed genes and enriched pathways related to lipid metabolism in the pectoralis major at hatching. RESULTS: Between these two breeds, the absolute and weight-specific amounts of total yolk energy (TYE) and intramuscular fat (IMF) content in pectoralis major of fast-growing chickens were significantly higher (P < 0.01, P < 0.01, P < 0.05, respectively) than those of the slow-growing breed. IMF content and u-TYE were significantly related (r = 0.9047, P < 0.01). Microarray analysis revealed that gene transcripts related to lipogenesis, including PPARG, RBP7, LPL, FABP4, THRSP, ACACA, ACSS1, DGAT2, and GK, were significantly more abundant in breast muscle of fast-growing chickens than in slow-growing chickens. Conversely, the abundance of transcripts of genes involved in fatty acid degradation and glycometabolism, including ACAT1, ACOX2, ACOX3, CPT1A, CPT2, DAK, APOO, FUT9, GCNT1, and B4GALT3, was significantly lower in fast-growing chickens. The results further indicated that the PPAR signaling pathway was directly involved in fat deposition in pectoralis major, and other upstream pathways (Hedgehog, TGF-beta, and cytokine-cytokine receptor interaction signaling pathways) play roles in its regulation of the expression of related genes. CONCLUSIONS: Additional energy from the yolk sac is transported and deposited as IMF in the pectoralis major of chickens at hatching. Genes and pathways related to lipid metabolism (such as PPAR, Hedgehog, TGF-beta, and cytokine-cytokine receptor interaction signaling pathways) promote the deposition of IMF in the pectoralis major of fast-growing chickens compared with those that grow more slowly. These findings provide new insights into the molecular mechanisms underlying lipid metabolism and deposition in hatchling chickens. PMID- 29026540 TI - Energetic-protein supplementation in the last 60 days of gestation improves performance of beef cows grazing tropical pastures. AB - BACKGROUND: Nutrition is one of the most important factors that affect animal performance, and it therefore also impacts on financial results in beef systems. In this way, finding the best strategy for feeding supplements is of paramount importance. Aiming to evaluate the effect of supplement feeding strategies for beef cows in the last third of gestation, two experiments were conducted. In Experiment 1, 35 pregnant Nellore cows were assigned to a completely randomized design with four treatments: control, which received no supplement; supplementation for the last 30 d of gestation (30-d; 3.0 kg/d); supplementation for the last 60 d of gestation (60-d; 1.5 kg/d); or supplementation for the last 90 d of gestation (90-d; 1.0 kg/d). All supplemented treatments received the same total amount of supplement throughout the experiment: 90 kg (20% of crude protein). A second experiment (Experiment 2) was delineated to evaluate the effects of the amounts offered in Experiment 1 on intake and metabolism. Four multiparous pregnant Nellore cows were assigned to a 4 * 4 Latin square design, with periods of 15 d each. RESULTS: There was a linear effect of the number of days of supplementation on calving body weight (BW; P < 0.05) and a quadratic effect on BW change from parturition to d 31 post-calving (P < 0.05), with cows on the 60-d strategy losing less BW post-calving. No difference was found in offspring birth BW (P > 0.10). A significant linear effect on interval from parturition to conception (P < 0.05) was observed, with the highest calving to conception interval being observed in the 90-d strategy. The level of supplementation did not affect forage intake or neutral detergent fiber digestibility (P > 0.10). Nitrogen excreted through urine tended to increase linearly with the level of supplementation (P < 0.10). CONCLUSION: Providing 1.5 kg of supplement during the last 60 d of gestation improves cow performance after calving, reducing the magnitude of BW lost, and reduces the number of days from calving to re-conception in the following breeding season compared to the usually recommended period of supplementation of 90 d pre-partum. PMID- 29026541 TI - Molecular features that predict the response to antimetabolite chemotherapies. AB - BACKGROUND: Antimetabolite chemotherapeutic agents that target cellular metabolism are widely used in the clinic and are thought to exert their anti cancer effects mainly through non-specific cytotoxic effects. However, patients vary dramatically with respect to treatment outcome, and the sources of heterogeneity remain largely unknown. METHODS: Here, we introduce a computational method for identifying gene expression signatures of response to chemotherapies and apply it to human tumors and cancer cell lines. Furthermore, we characterize a set of 17 antimetabolite agents in various contexts to investigate determinants of sensitivity to these agents. RESULTS: We identify distinct favorable and unfavorable metabolic expression signatures for 5-FU and Gemcitabine. Importantly, we find that metabolic pathways targeted by each of these antimetabolites are specifically enriched in its expression signatures. We provide evidence against the common notion about non-specific cytotoxic functions of antimetabolite drugs. CONCLUSIONS: This study demonstrates through unbiased analyses that the activities of metabolic pathways likely contribute to therapeutic response. PMID- 29026542 TI - A population-based survey on physical inactivity and leisure time physical activity among adults in Chiang Mai, Thailand, 2014. AB - BACKGROUND: Reducing physical inactivity among the population is a challenge for many nations. Targeting leisure time physical activity (LTPA) may be useful in increasing overall physical activity as it is assumed it is associated with a higher degree of free choice and personal preference than physical activity at work and during travel. The study explored the prevalence of physical inactivity and focused on the overall level of energy expenditure and energy level spent during leisure time among those who were physically inactive and assessed the stages of change for LTPA among those who were physically inactive. METHODS: A population-based survey was conducted in 2014 in Chiang Mai, Thailand using a stratified two-stage cluster sampling technique. The Global Physical Activity Questionnaire (GPAQ) was used to collect the data on physical activity. Sufficient levels of physical activity (PA) were defined as >=150 min/week of moderate-intensity PA or >=75 min/week of vigorous-intensity PA or >=600 metabolic equivalent of task (MET)-minutes/week. Weighted analyses were used to estimate the prevalence of physical inactivity, the total energy expenditure and expenditure during LTPA as well as stages of change among the physically inactive population. RESULTS: A total of 1744 people (808 men and 936 women), aged 15 to 64 years, participated in the study. We estimated that a quarter (26%) of the population were physically inactive. Physical inactivity was more commonly found among women than men in most age groups. LTPA contributed a small proportion of overall PA. On average, physically inactive men spent 132.8 MET-minutes/week and inactive women spent 208.2 MET-minutes/week in overall PA which is well below the 600 MET-minutes/week recommend by the World Health Organization. Around 75% of physically inactive people had no intention of engaging in regular LTPA. CONCLUSION: About a quarter of the investigative population were physically inactive. Most physically inactive members of the population participate in low levels of LTPA, but the majority has no intention of increasing PA during leisure time. A large-scale health promotion program is needed, and it should focus on an approach for the pre-contemplated population. PMID- 29026543 TI - From Gardner fibroma diagnosis to constitutional APC mutation detection: a one way street. AB - We report a young child without a family history of FAP, who promptly underwent APC testing after the histological confirmation of a paraspinal GAF that was not isolated. Our case report reinforces the suggestion advanced by previous authors for an APC analysis in all patients with GAF. PMID- 29026544 TI - Central nervous system Tuberculosis in a man from Cambodia with worsening headaches. AB - Central nervous system (CNS) tuberculosis should be considered in patients from endemic nations with worsening neurological symptoms. If imaging reveals possible CNS tuberculomas, potentially life-threatening lesions should be excised and analyzed. When disease is less severe, other tissues possibly infected should be biopsied first for diagnosis to avoid neurosurgery. PMID- 29026545 TI - Resuscitative endovascular balloon occlusion of the aorta as an adjunct for hemorrhagic shock due to uterine rupture: a case report. AB - Resuscitative endovascular balloon occlusion of the aorta (REBOA) is a life saving procedure used to control bleeding and maintain blood pressure temporarily in traumatic hemorrhagic shock. Uterine rupture and placenta accreta provoke uncontrollable massive hemorrhaging. REBOA may be useful for hemodynamic stabilization to prevent cardiac arrest in high-risk pregnancy. PMID- 29026546 TI - Systemic BCG-osis following intravesical BCG instillation for bladder carcinoma. AB - Intravesical instillation of Bacillus Calmette-Guerin (BCG) has been shown to be an effective form of immunotherapy for bladder cancer. This case report describes a patient who develops systemic BCG-osis following intravesical BCG instillation and demonstrates the importance of being aware of more severe complications associated with BCG immunotherapy. PMID- 29026547 TI - Late onset of unilateral optic disk edema secondary to treatment with imatinib mesylate. AB - Prompt ophthalmology evaluation and immediate imatinib suspension should be suggested at any time of tyrosine kinase inhibitor therapy in patients with visual deficit, as it may be a clinical manifestation of optic disk edema, and suspension may help in prompt recovery. PMID- 29026548 TI - Erythromelanosis follicularis faciei et colli with reticulated hyperpigmentation of the extremities. AB - Erythromelanosis follicularis faciei et colli (EFFC) is a distinct, rare, and underdiagnosed condition of unknown etiology that is characterized by well demarcated erythema, hyperpigmentation, and follicular papules. The pigmentation is usually on both maxillary, preauricular regions, and the cheeks. We report a case of a 12-year-old boy with EFFC that was associated with reticulated pigmentation of the extremities. PMID- 29026549 TI - Assessment of pathogenesis of infective endocarditis by plasma IgG antibody titer test against periodontal bacteria. AB - Oral bacteria cause infective endocarditis (IE), so severe periodontitis is thought to be high risk for IE. We suggest the identification of high-risk patients by an IgG antibody titer test against periodontal bacteria might become common screening test. PMID- 29026550 TI - Making (mis) sense of asymptomatic marked hypercalcemia in pregnancy. AB - We describe a rare case of homozygous inactivating calcium-sensing receptor mutation detected during pregnancy and mimicking primary hyperparathyroidism. In pregnancy, the differential diagnosis of hypercalcaemia requires a cautious approach as physiological changes in calcium homeostasis may mask rare genetic conditions. PMID- 29026551 TI - Extrinsic pulmonary artery compression mimicking acute pulmonary embolism. AB - Right ventricular strain patterns on electrocardiogram such as right axis derivation and S1Q3T3 are well known for their diagnostic value in cases of acute pulmonary embolism. Nonetheless, these changes are not pathognomonic. We report a patient with electrocardiographic evidence of right ventricular strain secondary to an unusual etiology. PMID- 29026552 TI - The discussion of t(1;17)(p11;q21) translocation in acute promyelocytic leukemia patient on molecular remission. AB - Some chromosomal aberrations emerging in the course of treatment are probably not related to disease progression, but attribute to the germline alteration. Therefore, the dynamic genetic tests should be performed during the whole treatment process, which is significantly essential for efficacy evaluation and treatment decision- making. PMID- 29026554 TI - Aortic stent graft placement under extracorporeal membrane oxygenation in severe multiple trauma. AB - Placement of an aortic stent graft under extracorporeal membrane oxygenation was the life-saving procedure in a case of severe head trauma and traumatic aortic dissection after injured by a railroad engine. Timely access to neurosurgery, heart surgery, and radiology providing minimal invasive interventions increase the chances of a favorable outcome. PMID- 29026555 TI - Pasireotide and octreotide in the treatment of severe late dumping syndrome. AB - Hypoglycemia due to late dumping is a significant problem postoesophagectomy but may not always be diagnosed sufficiently early. It can be difficult to treat and may severely compromise quality of life. The combination of diazoxide and octreotide or more probably pasireotide may transform the patient's life and should be considered in all problematic cases. PMID- 29026553 TI - Gitelman syndrome: a rare life-threatening case of hypokalemic paralysis mimicking Guillain-Barre syndrome during pregnancy and review of the literature. AB - In rare cases, patients with Gitelman syndrome may present with hypokalemic paralysis mimicking Guillain-Barre syndrome. The severity of resultant symptoms may be life-threatening. Controversial drugs such as aldactone, amiloride, and eplerenone should be used in this situation despite the lack of safety data. PMID- 29026556 TI - Which is the best in carbamazepine overdose? AB - Intravenous lipid emulsion treatment is safer, faster, and easier to apply and could be a powerful alternative to extracorporeal treatment methods in carbamazepine intoxication. PMID- 29026557 TI - Aggressive squamous cell carcinoma of the bladder associated with a history of large bladder stone - a case report. AB - History of large bladder stones suggests a long-standing chronic irritation of the bladder, a known risk factor for squamous cell carcinoma. Therefore, in such patients, we suggest random biopsies to detect presence of dysplasia or malignancy and a follow-up cystoscopy for early detection of a possible tumor. PMID- 29026558 TI - Expanded phenotype in a patient with spastic paraplegia 7. AB - Hereditary spastic paraplegia is a group of clinically and genetically heterogeneous neurodegenerative disorders, often characterized by weakness and spasticity in the lower limbs. In our study, we describe a spastic paraplegia type 7 patient with an expanded phenotype who was diagnosed after the discovery of pathogenic variants in SPG7. PMID- 29026559 TI - Verapamil-sensitive atrial tachycardia with a slow conduction zone near the noncoronary aortic sinus and His bundle. AB - This report presents a verapamil-sensitive atrial tachycardia, mid-atrium septum activating the earliest. Concealed entrainment was obtained at noncoronary aortic sinus (NCS), where the local activation was delayed compared to mid-septum. The tachycardia was successfully ablated at NCS. The entrance of the slow conduction zone was located at NCS. PMID- 29026560 TI - Uncommon response of cisplatin and etoposide for treatment of advanced medullary thyroid carcinoma. AB - Systemic treatment of Medullary thyroid carcinoma (MTC) is currently limited to the use of a tyrosine kinase inhibitor. Cytotoxic chemotherapy is not routinely recommended in the earlier lines of treatment due to the lack of efficacy. We describe a patient with locally advanced MTC who had an uncommon response to cisplatin and etoposide. PMID- 29026561 TI - Primary hypogonadism, partial alopecia, and Mullerian hypoplasia: report of a fifth family and review. AB - Primary hypogonadism combined with Mullerian hypoplasia and partial alopecia are common features of this syndrome, which was reported only in four earlier families from areas where consanguineous marriage is prevalent. An autosomal recessive pattern of inheritance was suggested earlier and is supported by this report. PMID- 29026562 TI - Developmental progression of intellectual disability, autism, and epilepsy in a child with an IQSEC2 gene mutation. AB - The neurodevelopmental progression of a school-aged child with a spontaneous IQSEC2 mutation has demonstrated apparent regression of milestones and language. Seizures associated with the disorder have been refractory to medical treatment. Late treatment of autism in this child has led to improved social skills. PMID- 29026563 TI - Methotrexate-induced leukoencephalopathy presenting as stroke in the emergency department. AB - Methotrexate-induced leukoencephalopathy is to be considered as a potential etiology in any patient presenting with stroke-like symptoms after receiving methotrexate. One of our cases suggests that the method of administration of the methotrexate can be IV or intrathecal and still results in leukoencephalopathy. PMID- 29026564 TI - Left main trunk stenting in a case of acute aortic dissection: a case report. AB - In cases involving unstable hemodynamics in patients with Stanford type-A acute aortic dissection involving left main trunk (LMT) compression, LMT stenting without antiplatelet agents may be a good option as a bridge to surgery. PMID- 29026565 TI - Supraventricular microreentry in a newborn due to a giant atrial septum aneurysm. AB - Supraventricular arrhythmias in neonates are rare and mostly not related to structural heart defects. We present the first case of a newborn with a supraventricular microreentrant tachycardia possibly associated with an atrial septum aneurysm and emphasize the importance of a thorough diagnostic workup allowing a fast and adequate therapy. PMID- 29026566 TI - Synchronous Hodgkin's lymphoma and seminoma: a rare coexistence and an important lesson. AB - Synchronous presentation of seminoma and lymphoma is rare but has important ramifications for the treatment of both malignancies. Without clinical vigilance, this situation may be easily missed, leading to inappropriate management. We describe a patient with synchronous seminoma and Hodgkin's lymphoma and discuss the implication on his treatment. PMID- 29026567 TI - Proactive use of eltrombopag before the onset of clinical bleeding in two children with immune thrombocytopenia and lifestyle restrictions. AB - Children with immune thrombocytopenia (ITP) are often managed using a watch-and wait approach to avoid conventional treatment that may be poorly tolerated. However, in some patients, this approach may lead to lifestyle restrictions due to risk of injury-related bleeding. Eltrombopag is a well-tolerated new option that may help these children. PMID- 29026568 TI - A rare case of CD1a-negative Langerhans cell histiocytosis of the central nervous system in a child. AB - Langerhans cell histiocytosis is a dendritic cell disorder with a wide spectrum of severity and presentations. Histopathology typically demonstrates a proliferation of Langerhans cells and a lymphohistiocytic inflammatory infiltrate with eosinophils. The diagnosis is supported by immunohistochemistry with the cell markers S100, CD1a, CD68, and Langerin [Blood, 126, 2015, 26 and N Engl J Med, 331, 1994, 154]. PMID- 29026569 TI - Sudden maternal hypoxemia during elective cesarean section in a woman with placenta previa. AB - There have been no reports regarding imaging-documented bronchospasm in patients with amniotic fluid embolism (AFE). In a woman with scheduled cesarean section for placenta previa, transient bronchospasm and pulmonary hypertension were documented explaining a sudden drop in SpO2. Mild AFE was the most likely diagnosis in this patient. PMID- 29026570 TI - Calypso's spell: accidental near-fatal thiacloprid intoxication. AB - Acute life-threatening intoxications with insecticides are rare. We report a case of accidental near-fatal thiacloprid intoxication with mass spectrometry-based analytical confirmation. The initial clinical presentation resembled imminent brain death and/or severe postanoxic encephalopathy. Prolonged supportive treatment resulted in full recovery underlining intoxication as an important differential diagnosis in unclear coma. PMID- 29026571 TI - Maxillary molar healing after treatment of an uninstrumented canal with a novel root canal procedure: a case report. AB - A major cause for endodontic failure is the inability to treat all anatomy. Studies report endodontic retreatments contain 42% missed canals. This case illustrates dentin preservation of a molar with an uninstrumented mesiobuccal-3 canal revealed post-GentleWave Procedure. Efficient cleaning and disinfection with maintained healing to 18 months is demonstrated. PMID- 29026572 TI - Nasopharyngeal carcinoma presenting as an inconspicuous primary lesion with extensive cavernous sinus involvement and temporal lobe extension: a case report and review of literature. AB - Detection of nodal metastasis in the neck or adjacent structures is common in nasopharyngeal carcinoma (NPC) when there is frank primary disease. Intracranial extension without obvious nasopharyngeal disease is not common. Here, we discuss a patient with NPC that presented with extensive intracranial disease with subtle findings in the nasopharynx. PMID- 29026573 TI - Polycystic pancreatic disease associated with pineal cyst in an adolescent: a case report and literature overview. AB - Pancreatic polycystosis is one of rare causes of recurrent abdominal pain of pancreatic origin in children frequently associated with other organ's cysts which are to be searched. Association with pineal cyst is exceptional, and link between the two locations is to be elucidated. MRI is highly valuable to characterize cysts. PMID- 29026574 TI - Complete remission of rare adenocarcinoma of the oropharynx with APCEDEN(r) (dendritic cell-based vaccine): a case report. AB - APCEDEN (r) is an autologous monocyte-derived dendritic cell-based immunotherapy. A 58-year-old man with adenocarcinoma of oropharynx shows complete remission after receiving APCEDEN (r) in conjunction with Geftinib validated by reduction in size, whereas Gefitinib alone lead to disease progression. PMID- 29026575 TI - Cystic fibrosis and Silver-Russell syndrome due to a partial maternal isodisomy of chromosome 7. AB - If an infant with cystic fibrosis exhibits failure to thrive, despite adequate disease management, Silver-Russell syndrome should be considered, given the locations of these conditions in the genome. However, an earlier clue to the diagnosis is small-for-gestational-age birth. PMID- 29026576 TI - Use of granulocyte colony-stimulating factor in the treatment of methimazole induced agranulocytosis: a case report. AB - A comparison of this case to previously published reports suggests that granulocyte colony-stimulating factor may be associated with improved prognosis in severe antithyroid drug-induced neutropenia, and that weight-based doses could be an appropriate strategy. PMID- 29026577 TI - Split high-dose oral levothyroxine treatment as a successful therapy option in myxedema coma. AB - High-dose intravenous thyroxine (T4) is the preferable treatment for myxedema coma. We describe the clinical course of a 69-year-old man who presented with myxedema coma and received oral levothyroxine (LT4) therapy (1 mg) in a split dose. This suggests split high-dose oral LT4 as a therapeutic option in myxedema coma. PMID- 29026578 TI - Spontaneous dissection limited to left gastric artery. AB - Spontaneous dissection without an aneurysm limited to left gastric artery is fairly rare. Physicians should be alert to the possibility of this condition in patients with sudden-onset abdominal pain. PMID- 29026579 TI - Amlodipine-induced gingival enlargement. AB - The three most common classes of medications implicated in drug-induced gum enlargement are anticonvulsives, calcineurin inhibitors, and calcium channel blockers. Treatment primarily consists of withdrawing the offending agent whenever possible, in addition to maintaining good oral hygiene. Gingivectomy or flap surgery may be needed in resistant cases. PMID- 29026580 TI - 123I-BMIPP single-photon emission computed tomography for diagnosing chest pain in patients with nonobstructive coronary angiograms: Takotsubo or vasospasm? AB - The decreased 123I-BMIPP uptake, while having normal perfusion, in the correspondent coronary artery territory is caused by a delayed metabolic recovery after the recovery of perfusion. This phenomenon termed ischemic memory can clearly differentiate vasospastic angina from other chest pain syndromes. PMID- 29026581 TI - Hemivertebra of the cervical spine: an uncommon background for neck pain, cervical scoliosis, and torticollis. AB - A 15-year-old female patient presented with neck pain accompanied by cervical scoliosis, on the existence of torticollis. Although rare, hemivertebra of the cervical spine is a congenital deformation associated with these three clinical features. PMID- 29026582 TI - Extrarenal pelvis mimicking hydronephrosis: a case for caution. AB - Extrarenal pelvis is an anatomical variant that appears as a large hypoechoic mass just outside the renal sinus and can be confused with hydronephrosis, especially on a point-of-care renal ultrasound. Unlike hydronephrosis, it is not associated with dilated calyces, parenchymal thinning, hydroureter, or enlarged kidney per se. PMID- 29026583 TI - A case of hypersomnia due to bilateral thalamic stroke. AB - Bilateral thalamic infarction (BTI) can present as sleep-like coma without focal neurological signs which can lead to delay in the diagnosis. Due to the diagnostic challenge, treatment is often delayed. The early use of DWI-MRI in suspected cases can help in the early diagnosis and treatment. PMID- 29026584 TI - Solitary costal plasmacytoma mimicking lung cancer metastasis. AB - A clinical diagnosis of metastatic bone tumors is usually based on radiological findings without bone biopsy. Plasmacytoma can present as a single osteolytic lesion as described in this case. Early bone biopsy should be considered in unusual clinical settings for a differential diagnosis of primary bone tumors. PMID- 29026585 TI - Plantar keratoderma of Sezary syndrome. AB - Sezary syndrome is an extremely rare form of cutaneous T-cell lymphoma. It presents suddenly and is associated with a poor prognosis. Clinical recognition is crucial for the diagnostic process and initiation of appropriate treatment. Plantar keratoderma is usually pathognomonic for Sezary syndrome and clinicians should be alerted to its presence. PMID- 29026586 TI - Dilemma during ultrasound-guided internal jugular venous catheterization. AB - The presence of Internal Jugular Valves can pose a diagnostic and procedural challenge during ultrasound-guided cannulation. After ruling out dissection, thrombus, or ultrasound artifacts, it can still be accessed and successfully cannulated with appropriate precautions including use of Live ultrasound, positioning, use of soft-tipped catheters, and minimizing duration of catheter placement. PMID- 29026587 TI - Biliopancreatic limb obstruction after laparoscopic Roux-en-Y gastric bypass: a rare and potentially fatal condition. AB - Biliopancreatic limb obstruction after laparoscopic Roux-en-Y gastric bypass is a challenging diagnosis as the symptoms are very nonspecific. CT scan is the optimal study for evaluation. Early diagnosis and treatment is essential in reducing the morbidity and mortality associated with this condition. PMID- 29026588 TI - Granulomatosis with polyangiitis can cause periaortitis and pericarditis. AB - Granulomatosis with polyangiitis (GPA) is characterized by necrotizing granulomatous inflammation usually involving the upper and lower respiratory tracts and necrotizing vasculitis predominantly affecting small-sized vessels. Although categorized as a small vessel vasculitis, GPA can cause periaortitis and pericarditis. Physicians should recognize all categories of vasculitis can affect any size arteries. PMID- 29026589 TI - A retrospective analysis of biochemical and haematological parameters in patients with eating disorders. AB - BACKGROUND: The objective of the study was to determine whether levels of biochemical and haematological parameters in patients with eating disorders (EDs) varied from the general population. Whilst dietary restrictions can lead to nutritional deficiencies, specific abnormalities may be relevant to the diagnosis, pathogenesis and treatment of EDs. METHODS: With ethics approval and informed consent, a retrospective chart audit was conducted of 113 patients with EDs at a general practice in Brisbane, Australia. This was analysed first as a total group (TG) and then in 4 ED subgroups: Anorexia nervosa (AN), Bulimia nervosa (BN), ED Not Otherwise Specified (EDNOS), and AN/BN. Eighteen parameters were assessed at or near first presentation: cholesterol, folate, vitamin B12, magnesium, manganese, zinc, calcium, potassium, urate, sodium, albumin, phosphate, ferritin, vitamin D, white cell count, neutrophils, red cell count and platelets. Results were analysed using IBM SPSS 21 and Microsoft Excel 2013 by two-tailed, one-sample t-tests (TG and 4 subgroups) and chi-square tests (TG only) and compared to the population mean standards. Results for the TG and each subgroup individually were then compared with the known reference interval (RI). RESULTS: For the total sample, t-tests showed significant differences for all parameters (p < 0.05) except cholesterol. Most parameters gave results below population levels, but folate, phosphate, albumin, calcium and vitamin B12 were above. More patients than expected were below the RI for most parameters in the TG and subgroups. CONCLUSIONS: At diagnosis, in patients with EDs, there are often significant differences in multiple haematological and biochemical parameters. Early identification of these abnormalities may provide additional avenues of ED treatment through supplementation and dietary guidance, and may be used to reinforce negative impacts on health caused by the ED to the patient, their family and their treatment team (general practitioner, dietitian and mental health professionals). Study data would support routine measurement of a full blood count and electrolytes, phosphate, magnesium, liver function tests, ferritin, vitamin B12, red cell folate, vitamin D, manganese and zinc for all patients at first presentation with an ED. PMID- 29026590 TI - Eosinophilic esophagitis: What can we learn from Crohn's disease? AB - Eosinophilic esophagitis (EoE) is an emerging esophageal inflammatory disorder affecting children and young adults. As a relatively new disease, EoE is still burdened by frequent diagnostic and therapeutic pitfalls in clinical practice. This manuscript posits a number of similarities with Crohn's disease, which may help optimize EoE patient management. Commonalities include epidemiologic trends (Westernized diseases, rising incidence, early-life risk factors), diagnostic considerations (symptoms are poor predictors of disease activity, difficulties in disease activity assessment) and therapeutic issues (similar natural history and therapeutic goals, induction and maintenance phases, combination of drug and endoscopic treatment, potential drug interchangeability, long-term unsolved issues). Physicians devoted to EoE should learn from the extraordinary achievements fulfilled in Crohn's disease: increased disease awareness, multidisciplinary specialized clinics, structured childhood and transition programs, and an ongoing roadmap for personalized treatments, including genetic susceptibility, risk factors for progression, genotype-phenotype correlation, drug monitoring and microbial data. PMID- 29026592 TI - Yield of prolonged wireless pH monitoring in achalasia patients successfully treated with pneumatic dilation. AB - BACKGROUND: Gastro-oesophageal reflux disease (GORD) is a long-term complication of achalasia treatments. The aim of our study was to evaluate the yield of prolonged wireless pH monitoring in patients with successfully treated achalasia and its influence on proton pump inhibitor (PPI) use. METHODS: Twenty-five patients with achalasia who underwent prolonged wireless pH monitoring after a successful treatment with pneumatic dilation were enrolled. pH variables were analysed in the first 24 hours of monitoring to determine if tracings were indicative of GORD; the same variables were analysed in the following 24-hour period in order to obtain a worst-day diagnosis of GORD. PPI therapy before and after the test was recorded. RESULTS: Five out of 25 patients had GORD diagnosis during the first day of monitoring and four of them had oesophagitis at endoscopy. During the following days of monitoring four more patients had a diagnosis of GORD. Out of the 25 patients, PPIs were started after the test in six asymptomatic GORD-positive ones, whereas prescription of PPIs was stopped without detrimental effect on symptoms in three GORD-negative patients. CONCLUSIONS: Prolonged wireless pH monitoring is a useful test to be added to endoscopy in order to evaluate GORD and to optimise antisecretory treatment in successfully treated achalasia patients. PMID- 29026591 TI - Irritable bowel syndrome diagnosis and management: A simplified algorithm for clinical practice. AB - BACKGROUND: Effective management of irritable bowel syndrome (IBS), a common functional gastrointestinal disorder, can be challenging for physicians because of the lack of simple diagnostic tests and the wide variety of treatment approaches available. OBJECTIVE: The objective of this article is to outline a simple algorithm for day-to-day clinical practice to help physicians navigate key stages to reaching a positive IBS diagnosis and guidance on how to prioritise the use of specific management strategies. METHODS: This algorithm was based on the opinion of an expert panel evaluating current evidence. RESULTS: The key principles forming the foundation of this evidence-supported algorithm are: confidently naming and explaining an IBS diagnosis for the patient, followed by assessment of key patient characteristics likely to influence the choice of therapy, such as predominant symptoms, and exploring the patient agenda and preferences. Consultation should always include education and reassurance with an explanatory model of IBS tailored to the patient. Individualised lifestyle changes, dietary modifications, pharmacological therapies, psychological strategies or a combination of interventions may be used to optimise treatment for each patient. CONCLUSION: The simple visual tools developed here navigate the key stages to reaching a positive diagnosis of IBS, and provide a stepwise approach to patient-centred management targeted towards the most bothersome symptoms. Establishing a strong patient-physician relationship is central to all stages of the patient journey from diagnosis to effective management. PMID- 29026593 TI - Antibiotic resistance and gyrA mutation affect the efficacy of 10-day sitafloxacin-metronidazole-esomeprazole therapy for Helicobacter pylori in penicillin allergic patients. AB - BACKGROUND AND AIM: Helicobacter pylori (H. pylori) eradication regimen has not been standardized for patients with penicillin allergy. We investigated the association between the efficacy of a 10-day sitafloxacin, metronidazole, and esomeprazole triple regimen and antibiotic resistance, in patients with penicillin allergy. METHODS: Penicillin-allergic patients infected with H. pylori were enrolled between March 2014 and November 2015. The minimum inhibitory concentrations (MICs) of sitafloxacin and metronidazole, and the gyrA mutation status of the H. pylori strains were determined before treatment. The cut-off points for antimicrobial resistance were defined as 8.0 ug/ml for metronidazole and 0.12 ug/ml for sitafloxacin. The patients received the triple therapy (20 mg esomeprazole, bid; 250 mg metronidazole, bid; and 100 mg sitafloxacin, bid) for 10 days. Successful eradication was evaluated using the [13C] urea breath test or the H. pylori stool antigen test. RESULTS: Fifty-seven patients were analyzed, and the overall eradication rate was 89.5%. The eradication rate in cases of double antibiotic resistance to metronidazole and sitafloxacin was 40.0%, whereas for other combinations of resistance, this was above 90.0%. Finally, the eradication rate of gyrA mutation-negative strains was 96.2%, whereas for gyrA mutation-positive strains, it was 83.9%. Adverse events were reported in 31.6% of cases, all of which were mild and tolerable. CONCLUSION: Ten days of sitafloxacin and metronidazole triple therapy was safe and highly effective in eradicating H. pylori in penicillin-allergic patients. Double resistance to metronidazole and sitafloxacin was an important predicting factor for eradication failure. However, 10 days of the sitafloxacin and metronidazole triple therapy was highly effective if the strain was susceptible to either sitafloxacin or metronidazole. PMID- 29026594 TI - Subtypes of chronic gastritis in patients with celiac disease before and after gluten-free diet. AB - BACKGROUND: Celiac disease (CD) often manifests with dyspeptic symptoms and chronic gastritis is a common finding. AIM: To evaluate the frequency of lymphocytic gastritis (LG), chronic active gastritis (CAG), and chronic inactive gastritis (CIG) in patients with CD, before and after gluten-free diet (GFD). METHODS: A five-year prospective study including all consecutive patients with a new diagnosis of CD was conducted. Gastric and duodenal biopsy specimens taken both at the time of the CD diagnosis and at the first endoscopic control after 18 24 months on GFD were evaluated. RESULTS: 213 patients with CD were enrolled. At the time of the diagnosis, 42 patients (19.7%) showed normal gastric mucosa, 34 (15.9%) LG, 67 (31.5%) CAG, and 70 (32.9%) CIG. Out of the 34 patients with LG, all were Helicobacter pylori negative and the majority of them showed an improvement both of gastritis (94.1%) and duodenal lesions (82.3%) after GFD. GFD did not show significant effects on CAG and CIG. CONCLUSIONS: LG is present in 16% of CD patients, it is not associated with H. pylori infection, and it improves after GFD. Both CAG and CIG are also frequently associated with CD, but fail to respond to a GFD. PMID- 29026595 TI - Time trend occurrence of duodenal intraepithelial lymphocytosis and celiac disease in an open access endoscopic population. AB - BACKGROUND: Duodenal intraepithelial lymphocytosis (DIL) is a histological finding characterized by the increase of intraepithelial CD3T-lymphocytes over the normal value without villous atrophy, mostly associated to coeliac disease (CD), Helicobacter pylori (Hp) gastritis and autoimmune diseases. OBJECTIVE: To assess the occurrence of DIL, CD and Hp gastritis in an endoscopic population over a 13 year period. METHODS: From 2003 to 2015 we included adult patients who consecutively underwent oesophago-gastro-duodenoscopy (OGD) with duodenal biopsies assessing the overall and annual occurrence of DIL and CD and the prevalence of Hp gastritis. RESULTS: 160 (2.3%) patients with DIL and 275 (3.9%) with CD were detected among 7001 patients. CD occurrence was higher from 2003 to 2011, while since 2012 DIL occurrence gradually increased significantly compared to CD (p = 0.03). DIL patients were more frequently female (p = 0.0006) and underwent OGD more frequently for dyspepsia (p = 0.002) and for indications not related to gastrointestinal symptoms than CD patients (p = 0.0003). Hp gastritis occurred similarly in CD and DIL patients but the latter had higher frequency of atrophic body gastritis (p = 0.005). CONCLUSIONS: DIL is a condition increasing in the general endoscopic population mainly diagnosed by chance. Concomitant gastric histological evaluation is able in one third of DIL patients to identify associated possible causes of DIL, such as Hp and atrophic gastritis. PMID- 29026596 TI - Flow cytometry of duodenal intraepithelial lymphocytes improves diagnosis of celiac disease in difficult cases. AB - BACKGROUND: Diagnosis of celiac disease is difficult when the combined results of serology and histology are inconclusive. Studies using flow cytometry of intraepithelial lymphocytes (IELs) have found that celiac patients have increased numbers of gammadelta IELs, along with a decrease in CD3-CD103 + IELs. OBJECTIVE: The objective of this article is to assess the role of flow cytometric analysis of IELs in the diagnosis of celiac disease in difficult cases. METHODS: A total of 312 patients with suspicion of celiac disease were included in the study. Duodenal biopsy samples were used for histological assessment and for flow cytometric analysis of IELs. RESULTS: In 46 out of 312 cases (14.7%) the combination of serology and histology did not allow the confirmation or exclusion of celiac disease. HLA typing had been performed in 42 of these difficult cases. Taking into account HLA typing and the response to a gluten-free diet, celiac disease was excluded in 30 of these cases and confirmed in the remaining 12. Flow cytometric analysis of IELs allowed a correct diagnosis in 39 out of 42 difficult cases (92.8%) and had a sensitivity of 91.7% (95% CI: 61.5% to 99.8%) and a specificity of 93.3% (95% CI: 77.9% to 99.2%) for the diagnosis of celiac disease in this setting. CONCLUSION: Flow cytometric analysis of IELs is useful for the diagnosis of celiac disease in difficult cases. PMID- 29026597 TI - Endoscopic approach for management of biliary strictures in liver transplant recipients: A systematic review and meta-analysis. AB - : The most common biliary complication after liver transplantation is anastomotic stricture (AS) and it can occur isolated or in combination with other complications. Liver graft from a cadaveric donor or a living donor has an influence on the incidence of biliary strictures as well as on the response to endoscopic treatment. Endoscopic treatment using balloon dilation and insertion of biliary stents by endoscopic retrograde cholangiopancreatography (ERCP) is the initial approach to these complications. AIM: The aim of this article is to compare different endoscopic techniques to treat post-liver transplantation biliary strictures. METHODS: The search was carried out on MEDLINE, EMBASE, Scielo-LILACS and Cochrane Library databases through June 2015. A total of 1100 articles were retrieved. Ten clinical trials were analyzed, and seven were included in the meta-analysis. CONCLUSIONS: The endoscopic treatment of AS was equally effective when compared the use of fully covered self-expandable metal stents (FCSEMS) vs. plastic stents, but the use of FCSEMS was associated with a lower complication risk. The treatment of AS with balloon dilation or balloon dilation associated with plastic stents presented similar results. Deceased donor liver transplantation reduced the risk of biliary stenosis and the endoscopic treatment in these patients was more effective when compared with Living donor liver transplantation. PMID- 29026598 TI - Endoscopic ultrasound-guided fine needle aspiration of pancreatic lesions with 22 versus 25 Gauge needles: A meta-analysis. AB - BACKGROUND: Robust data in favour of a clear superiority of 22 versus 25 Gauge needles for endoscopic ultrasound-guided fine needle aspiration are still lacking. OBJECTIVE: We aimed to compare the diagnostic sensitivity, specificity and safety of these two needles for endoscopic ultrasound-guided fine needle aspiration of solid pancreatic lesions. METHODS: A computerized bibliographic search was restricted to randomized controlled trials only. Pooled effects were calculated using a random-effects model and expressed in terms of risk ratio and 95% confidence interval. RESULTS: We analysed seven trials with 689 patients and 732 lesions (295 sampled with 22 Gauge needle, 309 with 25 Gauge needle, and 128 with both needles). A non-significant superiority of 25 Gauge in terms of pooled sensitivity (risk ratio: 0.93, 0.91-0.95 versus 0.89, 0.85-0.94 of 22 Gauge needle; p = 0.13) and no difference in terms of specificity (1.00, 0.98-1.00 in both groups; p = 0.85) were observed. Sample adequacy was similar between the two devices (risk ratio: 1.03, 0.99-1.06; p = 0.15). Very few adverse events were observed and did not impact on patient outcomes. CONCLUSION: Our meta-analysis reveals non-superiority of 25 Gauge over 22 Gauge; hence no definitive recommendations over the use of one particular device can be made. PMID- 29026600 TI - Effect of prophylactic clipping in colorectal endoscopic resection: A meta analysis of randomized controlled studies. AB - BACKGROUND AND AIM: The efficacy of clipping for preventing delayed bleeding after colorectal endoscopic resection is still controversial. To assess the efficacy of prophylactic clipping, we conducted a meta-analysis of randomized controlled trials. METHODS: We searched PubMed, the Cochrane library, and the Igaku-chuo-zasshi database for randomized trials eligible for inclusion in our meta-analysis. We identified seven eligible randomized trials from the database search, and compared the effect of clipping versus non-clipping with respect to delayed bleeding and perforation. Data from eligible studies were combined to calculate pooled odds ratios (ORs). RESULTS: Postoperative bleeding was observed in 41 of 1526 cases (2.7%) without clipping and in 32 of 1533 cases (2.1%) with clipping (OR 0.76, 95% CI: 0.39-1.47, p = 0.414). There was no significant heterogeneity among the trial results (I-Square = 26.7%, p = 0.22). In the subgroup analysis based on small tumor size (<20 mm) and large tumor size (>=20 mm), there were no significant differences. Compared with non-clipping, the pooled OR of developing perforation with clipping was 1.00 (95% CI: 0.14-7.25), indicating no significant difference between the two groups. CONCLUSIONS: Prophylactic clipping did not decrease the occurrence of delayed bleeding after colorectal endoscopic resection. Clipping could be of interest in patients with a high risk of bleeding (anticoagulation) or large lesions, but with the available trials data to prove this are scarce. PMID- 29026599 TI - Comparison of pancreatic histology specimens obtained by EUS 19G versus 22G core biopsy needles: A prospective multicentre study among experienced pathologists. AB - BACKGROUND AND AIM: Scanty data about inter-observer agreement (IOA) among pathologists in the evaluation of pancreatic samples acquired with EUS histology needle are available. The aim of this study was to determine IOA on adequacy of pancreatic histology specimens obtained with a 22G needle by a panel of experienced pathologist, in comparison with the 19G needle. METHODS: This multicentre prospective study involved 73 pancreatic specimens prepared using histology needles of different calibres. Five pathologists independently reviewed all the samples, assessing the presence of a core, specimen adequacy and the possibility to perform additional analyses. IOA determined by Fleiss' Kappa statistic was used as the primary outcome measure. Secondary outcome was to compare 22G versus 19G needle results. RESULTS: A core was present in 57% of pancreatic specimens obtained by 22G needle. The specimens were considered adequate in 72% of cases, with poor agreement among pathologists (p = 0.02, Fleiss' kappa = 0.26). The possibility to perform further analyses was rated as 'positive' in 66% of cases without significant difference among observers (p = 0.80). When comparing the results, the presence of a core and the adequacy of tissue slides were significantly better for the 19G needle (57% vs. 84% p = 0.002; 72% vs. 83% p = 0.004, respectively). Reproducibility in the assessment of pancreatic sample adequacy was significantly better with the 19G needle (kappa = 0.26 for 22G samples vs. kappa = 0.81 for 19G samples). CONCLUSIONS: Our results suggest that histology sampling of pancreatic masses should be performed with a 19G histology needle, since is able to provide a core in the majority of cases, with 83% of adequate specimens and excellent results in term of reproducibility among pathologists. PMID- 29026601 TI - Complications, effectiveness, and long term follow-up of fecal microbiota transfer by nasoduodenal tube for treatment of recurrent Clostridium difficile infection. AB - BACKGROUND: Fecal microbiota transfer (FMT) is an effective treatment for recurrent Clostridium difficile infection (CDI), but data on procedure-related complications and long-term outcome are scarce. METHODS: All patients treated with FMT for recurrent CDI at the Academic Medical Center between July 2010 and January 2016 were included. FMT was performed according to the FECAL trial protocol: administration of fresh donor feces (related or unrelated donor) through a duodenal tube after pre-treatment with vancomycin and bowel lavage. We collected information on FMT-related complications, recurrent CDI, and short- and long-term adverse events by telephone interviews using a structured questionnaire at three months after FMT, and at the time of data collection of this study. RESULTS: In total, 39 patients were treated with FMT. The primary cure rate (no recurrence <=8 weeks after one infusion with donor feces) was 82% (32 of 39 patients). Of the seven patients with recurrent CDI after FMT, four were cured by antibiotic therapy alone (fidaxomicin in three patients, metronidazole in one patient) and three by repeat FMT. Peri-procedural complications occurred in five patients, comprising fecal regurgitation or vomiting. One patient died one week post-FMT due to pneumonia; a causal relation with FMT could not be excluded. The follow-up period ranged between 3 and 68 months. No long-term side effects were reported. CONCLUSIONS: Our data underline the efficacy of FMT as treatment for recurrent CDI. Importantly, it is possible to cure post-FMT recurrences with antibiotic therapy alone. Peri-procedural complications do occur and should be closely monitored to help identify high-risk patients. To minimize the risk of complications, all FMT candidates should be evaluated to assess the most ideal delivery method. PMID- 29026602 TI - Re-phrasing the question: A simple tool for evaluation of adherence to therapy in patients with inflammatory bowel disease. AB - BACKGROUND: Non-adherence to medication in patients with inflammatory bowel disease (IBD) is a challenging problem which is often overlooked or under estimated by the physician or denied by the patient. We aimed to examine if re phrasing the wording of the question used by the physician could help in revealing more patients who are non-adherent, and for whom appropriate counseling may be instituted. METHODS: A cross-sectional questionnaire-based study of IBD patients treated in a tertiary center was conducted. Patients received a questionnaire detailing their treatments and disease course, as well as their perceptions about disease. Two forms of questions about adherence were deliberately placed in two separate parts of the questionnaire: One was 'are you taking your medications regularly as prescribed?' (Standard question), and the second, more emphatic question, was 'how often does it happen that you miss a drug dosing?' (Re-phrased question). The rate of non-adherence disclosed by each of these questions was compared. Sensitivity, specificity and predicative values were computed for each question against the conventional definition of non adherence as taking of less than 80% of prescribed medication doses disclosed by any of the methods. Predictors of non-compliance and of denying non-compliance were also explored. RESULTS: Overall, 165 patients were included (49% female, mean age 33.7 +/- 12.7 SD, median age 30 years, 29.6% with ulcerative colitis, 62.4% with Crohn's disease). Upon questioning, 50 (30.3%) of the patients admitted to non-adherence in the last month when asked by the emphatic re-phrased question format, compared with only 10 patients (6%) reporting non-adherence when asked directly by the standard question (OR 7.4, 95%CI 3.6-15.2, p < 0.001). Thus, a 'Do you take your medicine regularly' question format disclosed only 20% of genuinely non-compliant patients and had 16% sensitivity and 98.2% specificity for revealing non-adherence (PPV 80%, NPV 72.9%) compared with the reference re phrased question. The leading cause for non-adherence was skepticism about drug efficacy or safety (20.5%), followed by vacation or weekend (15%), problems with prescription or pharmacy (13.5%) and forgetfulness (10%). No single demographic or clinical factor correlated with non-adherence. The only factor which correlated with higher probability for non-adherence was biological and combination treatment. CONCLUSION: Non-compliance with treatment is much more common than patients admit. Asking patients how often does it happen that they miss a drug dosing is a simple, practical tool which performs significantly better in disclosing non-adherence compared with asking patients if they take their medication as they should. PMID- 29026605 TI - UEG Week 2018 Vienna: Topics and highlights. PMID- 29026603 TI - Downregulation of mucosal mast cell activation and immune response in diarrhoea irritable bowel syndrome by oral disodium cromoglycate: A pilot study. AB - BACKGROUND AND GOAL: Diarrhoea-predominant irritable bowel syndrome (IBS-D) exhibits intestinal innate immune and mucosal mast cell (MC) activation. MC stabilisers have been shown to improve IBS symptoms but the mechanism is unclear. Our primary aim was to investigate the effect of oral disodium cromoglycate (DSCG) on jejunal MC activation and specific innate immune signalling pathways in IBS-D, and secondarily, its potential clinical benefit. STUDY: Mucosal MC activation (by ultrastructural changes, tryptase release and gene expression) and innate immune signalling (by protein and gene expression) were quantified in jejunal biopsies from healthy (HS; n = 16) and IBS-D subjects after six months of either treatment with DSCG (600 mg/day, IBS-D-DSCG group; n = 18) or without treatment (IBS-D-NT group; n = 25). All IBS-D patients recorded abdominal pain and bowel habits at baseline and in the last 10 days prior to jejunal sampling. RESULTS: IBS-D-NT exhibited significant MC activation and over-expression of immune-related genes as compared to HS, whereas in IBS-D-DSCG MC activity and gene expression were similar to HS. Furthermore, DSCG significantly reduced abdominal pain and improved stool consistency. CONCLUSION: Oral DSCG modulates mucosal immune activity and improves gut symptoms in IBS-D patients. Future placebo-controlled clinical trials are needed for confirmation of clinical benefit of DSCG for IBS-D. PMID- 29026604 TI - Transglucosidase improves the bowel movements in type 2 diabetes mellitus patients: A preliminary randomized double-blind, placebo-controlled study. AB - BACKGROUND: Recent studies have highlighted the relationship between gut microbiota and bowel movements. OBJECTIVE: We aimed to evaluate transglucosidase treatment efficacy for bowel movements in patients with type 2 diabetes mellitus and to clarify the relationship between bowel movements, dietary habits, gut microbiota and fecal short-chain fatty acids. METHODS: In this randomized double blind, placebo-controlled study, 66 patients received placebo or transglucosidase (300 or 900 mg/day) orally, for 12 weeks. Fecal bacterial communities and short chain fatty acids were analyzed before and after the treatment. RESULTS: Transglucosidase treatment significantly (p < 0.05) affected fecal microbiota (Prevotella spp., Bacteroides spp., Bifidobacterium spp., and Clostridium subcluster XIVa) and fecal short-chain fatty acid (acetate, valerate, succinate and lactate) content. Clostridium cluster IV, Clostridium subcluster XIVa, Clostridium cluster XVIII and fecal pH increased significantly and order Lactobacillales decreased in patients with bowel movement disorder compared with controls. Transglucosidase treatment significantly improved bowel movements compared with placebo treatment (46.2%, 95% confidence interval: 19.2-74.9% vs. 0%, 95% confidence interval: 0-33.6%, p < 0.05). This effect was not observed in patients without bowel movement disorder. CONCLUSION: Patients with bowel movement disorder suffer from gut dysbiosis. Transglucosidase treatment alleviates bowel movement disorder symptoms in type 2 diabetes mellitus patients by increasing fecal acetate level. PMID- 29026606 TI - How to start a Young GI Section in your country - A cookbook. PMID- 29026607 TI - Wheezing and dyspnoea caused by aberrant left innominate artery. AB - We present a rare case of a branching anomaly of the aortic arch that resulted in wheezing and dyspnoea. The patient was a 60-year-old male with severe wheezing from babyhood, originally diagnosed with severe bronchial asthma. On auscultation, the inspiratory and expiratory wheezes appeared when the patient leaned forward. He also had difficulty in swallowing solid mass. Tests for airway reversibility and hyperresponsiveness were negative, and asthma treatment was ineffective. He had a right aortic arch. A barium oesophagogram and endoscopic examination indicated narrowing of the oesophagus from behind. Three-dimensional reconstruction of enhanced chest CT images indicated a right aortic arch and an aberrant enlarged left innominate artery, which compressed and narrowed the oesophagus and trachea from behind. Although the patient had been diagnosed with intractable bronchial asthma, his symptoms were more likely caused by this mechanical narrowing as wheezing and dyspnoea disappeared completely after total aortic arch replacement operation. PMID- 29026608 TI - Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia diagnosed by tranbronchoscopic cryoprobe biopsy technique. AB - Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) remains a poorly understood clinical entity. It is currently classified as a premalignant condition by the World Health Organization (WHO). Symptoms are similar to those associated with obstructive lung disease, including breathlessness and cough. The presentation is often initially ascribed to other diseases such as asthma or chronic obstructive pulmonary disease. Here, we present what we believe is the first described case of DIPNECH diagnosed by transbronchoscopic cryoprobe biopsy. The patient presented with chronic cough, dyspnoea, pulmonary function tests consistent with obstruction, and a computed tomography (CT) scan of chest with multiple nodules. The patient went on to have transbronchoscopic cryoprobe biopsies of the lung, which confirmed the diagnosis of DIPNECH. PMID- 29026609 TI - Ketosis-prone diabetes and SLE co-presenting in an African lady with previous gestational diabetes. AB - : We describe the case of an African woman who was diagnosed with ketosis-prone diabetes with diabetes-associated autoantibodies, after being admitted for diabetic ketoacidosis (DKA) precipitated by her first presentation of systemic lupus erythematosus (SLE). She had a seven-year history of recurrent gestational diabetes (GDM) not requiring insulin therapy, with return to normoglycaemia after each pregnancy. This might have suggested that she had now developed type 2 diabetes (T2D). However, the diagnosis of SLE prompted testing for an autoimmune aetiology for the diabetes, and she was found to have a very high titre of GAD antibodies. Typical type 1 diabetes (T1D) was thought unlikely due to the long preceding history of GDM. Latent autoimmune diabetes of adults (LADA) was considered, but ruled out as she required insulin therapy from diagnosis. The challenge of identifying the type of diabetes when clinical features overlap the various diabetes categories is discussed. This is the first report of autoimmune ketosis-prone diabetes (KPD) presenting with new onset of SLE. LEARNING POINTS: DKA may be the first presentation of a multi-system condition and a precipitating cause should always be sought, particularly in women with a history of GDM or suspected T2D.All women with GDM should undergo repeat glucose tolerance testing postpartum to exclude frank diabetes, even when post-delivery capillary blood glucose (CBG) tests are normal. They should also be advised to continue CBG monitoring during acute illness in case of new onset diabetes.KPD comprises a spectrum of diabetes syndromes that present with DKA, but subsequently have a variable course depending on the presence or absence of beta cell failure and/or diabetes autoantibodies.KPD should be considered in a patient with presumed T2D presenting with DKA, especially if there is a personal or family history of autoimmune diabetes.LADA should be suspected in adults presumed to have T2D, who do not require insulin therapy for at least six months after diagnosis and have anti-GAD antibodies.Patients with autoimmune diabetes have an increased risk of other autoimmune diseases and screening for thyroid, parietal cell, coeliac and antinuclear antibodies should be considered. PMID- 29026610 TI - Selective blood sampling for FGF-23 in tumor-induced osteomalacia. AB - : Tumor-induced osteomalacia (TIO) is caused by the hormone fibroblast growth factor 23 (FGF-23). It is mainly produced in the tissue of mesenchymal tumors. Patients with TIO frequently suffer from a chronic decompensated pain syndrome and/or muscle weakness with postural deformity. Despite the severity of the disease, the diagnosis is frequently established late. In some cases, it takes several years to establish the condition. This case report concerning a 68-year old woman demonstrates the selective blood sampling for FGF-23 as path-breaking diagnostics to confirm the diagnosis of a neuroendocrine tumor. LEARNING POINTS: Tumor-induced osteomalacia is a rare condition compared to other paraneoplastic syndromes.It causes complex symptoms such as progressive reduction of physical capacity, exhaustion, fatigue, a decompensated pain syndrome of the musculoskeletal system and fractures of several bones.Elevated serum levels of FGF-23 implicate massive phosphate elimination and resulting hypophosphatemia.The diagnosis is often established over a period of several years because the localization of small FGF-23-producing tumors is complicated.It is the combination of MRI and selective blood sampling for FGF-23 which permits reliable identification of tumors causing TIO and leads to accurate localization.In a patient with generalized pain and reduced physical capacity, osteological parameters such as phosphate, 25-OH vitamin D3 and 1,25-(OH)2D3, as well as bone specific alkaline phosphatase levels in serum should be determined. Hypophosphatemia should always lead to further diagnostic investigations aiming at the detection of an FGF-23-producing tumor. PMID- 29026611 TI - Branded prescription drug spending: a framework to evaluate policy options. AB - BACKGROUND: High drug spending is a concern for policy makers due to limits on access for patients. Numerous policies have been proposed to address high drug spending. The existence of multifarious proposals makes it difficult for policy makers to consider all the alternatives. We developed an approach to select the most viable options to present to policy makers. METHODS: We identified 41 different proposals in the peer-reviewed literature to reduce the level of spending or change the incentives for branded prescription drugs; ten of which we identified as promising proposals. Based on criterion used to assess various legislative proposals regarding branded pharmaceuticals we developed a framework to evaluate the ten promising proposals. We then used a modified Delphi technique to iteratively evaluate these ten proposals starting with the initial criterion. During each iteration, five researchers independently evaluated the ten policies based on available criterion and assessed how to modify the criterion to achieve consensus on what attributes the criterion were intended to measure. We highlight areas of disagreement to show where modifications to existing criterion are needed. RESULTS: We found general agreement for most policy-criterion combinations after three iterations. Areas with the greatest remaining disagreement include possible unintended consequences, the concept of value implied by many of the policies, and secondary effects by the pharmaceutical industry, insurers, and the FDA. CONCLUSIONS: Our analysis provides an approach that can be applied to evaluate policy proposals. It also suggests factors that policy analysts and researchers should consider when they propose policy options and where additional research is needed to assess policy impacts. Developing an objective approach to compare alternatives may facilitate the adoption of policies for branded prescription drugs in the U.S. by allowing policy makers to focus on the most viable options. PMID- 29026612 TI - Estimations of the lethal and exposure doses for representative methanol symptoms in humans. AB - BACKGROUND: The aim of this review was to estimate the lethal and exposure doses of a representative symptom (blindness) of methanol exposure in humans by reviewing data from previous articles. METHODS: Available articles published from 1970 to 2016 that investigated the dose-response relationship for methanol exposure (i.e., the exposure concentration and the biological markers/clinical symptoms) were evaluated; the MEDLINE and RISS (Korean search engine) databases were searched. The available data from these articles were carefully selected to estimate the range and median of a lethal human dose. The regression equation and correlation coefficient (between the exposure level and urinary methanol concentration as a biological exposure marker) were assumed from the previous data. RESULTS: The lethal human dose of pure methanol was estimated at 15.8-474 g/person as a range and as 56.2 g/person as the median. The dose-response relationship between methanol vapor in ambient air and urinary methanol concentrations was thought to be correlated. An oral intake of 3.16-11.85 g/person of pure methanol could cause blindness. The lethal dose from respiratory intake was reported to be 4000-13,000 mg/l. The initial concentration of optic neuritis and blindness were shown to be 228.5 and 1103 mg/l, respectively, for a 12-h exposure. CONCLUSION: The concentration of biological exposure indices and clinical symptoms for methanol exposure might have a dose-response relationship according to previous articles. Even a low dose of pure methanol through oral or respiratory exposure might be lethal or result in blindness as a clinical symptom. PMID- 29026613 TI - A case of generalized argyria presenting with muscle weakness. AB - BACKGROUND: Argyria is a rare irreversible cutaneous pigmentation disorder caused by prolonged exposure to silver. Herein, we report a case of generalized argyria that developed after chronic ingestion of soluble silver-nano particles and presented with muscle weakness. CASE PRESENTATION: A 74-year-old woman visited our emergency room, complaining of fever and mental deterioration. She was diagnosed with acute pyelonephritis and recovered after antibiotic therapy. At presentation, diffuse slate gray-bluish pigmented patches were noticed on her face and nails. Two months prior to visiting our hospital, she was diagnosed with inflammatory myopathy and given steroid therapy at another hospital. We performed a nerve conduction study that revealed polyneuropathy. In skin biopsies from pigmented areas of the forehead and nose, the histopathologic results showed brown-black granules in basement membranes of sweat gland epithelia, which are diagnostic findings of argyria. We reviewed pathology slides obtained from the left thigh muscles and found markedly degenerated myofibers with disorganization of myofibrils without inflammatory reactions, consistent with unspecified myopathy, rather than inflammatory myopathy. The patient was diagnosed with generalized argyria with polyneuropathy and myopathy and transferred to a rehabilitation institution after being tapered off of steroids. CONCLUSIONS: Clinicians should be aware of clinical manifestations of argyria and consider it in differential diagnosis when they examine patients who present with skin pigmentation and muscle weakness. PMID- 29026614 TI - The association between perceived discriminations and well-being in Korean employed workers: the 4th Korean working conditions survey. AB - BACKGROUND: Around the globe, discrimination has emerged as a social issue requiring serious consideration. From the perspective of public health, the impact of discrimination on the health of affected individuals is a subject of great importance. On the other hand, subjective well-being is a key indicator of an individual's physical, mental, and social health. The present study aims to analyze the relationship between Korean employed workers' subjective health and their exposure to perceived discrimination. METHODS: The Fourth Korean Working Conditions Survey (KWCS, 2014) was conducted on a representative sample of the economically active population aged 15 years or older, who were either employees or self-employed at the time of interview. After removing inconsistent data, 32,984 employed workers were examined in this study. The data included general and occupational characteristics, perceived discrimination, and well-being. Well being was measured through the WHO-Five index (1998 version). Multiple logistic regression analysis was used to examine the association between perceived discrimination and well-being. RESULT: As a group, employed workers who were exposed to discrimination had a significantly higher likelihood of "poor well being" than their counterparts who were not exposed to discrimination. More specifically, the workers exposed to age discrimination had an odds ratio(OR) of 1.51 (95% CI: 1.36-1.68), workers exposed to discrimination based on educational attainment had an OR of 1.43 (95% CI: 1.26-1.61), and workers exposed to discrimination based on employment type had an OR of 1.68 (95% CI: 1.48-1.91) with respect to poor well-being. Furthermore, workers exposed to a greater number of discriminatory incidents were also at a higher risk of "poor well-being" than their counterparts who were exposed to fewer such incidents. More specifically, the workers with three exposures to discrimination had an OR of 2.60 (95% CI: 1.92-3.53), the workers with two such exposures had an OR of 1.69 (95% CI: 1.44 1.99), and the workers with one such exposure had an OR of 1.32 (95% CI: 1.20 1.45). CONCLUSION: The present study found that discrimination based on age, educational attainment, or employment type put workers at a higher risk of "poor well-being," and that the greater the exposure to discrimination, the higher the risk of poor well-being. PMID- 29026615 TI - An unusual cutaneous infection caused by Mycobacterium marinum. AB - Introduction.Mycobacterium marinum is a non-tubercular mycobacterium residing in fresh or salt water (in tropical or temperate areas); it is a fish and human pathogen, and in immunocompromised patients can cause severe cutaneous and subcutaneous infections. Case presentation. A 46-year-old white man who underwent immunosuppressive therapy was admitted to our department in May 2016 for skin lesions previously diagnosed as 'unusual erysipelas'. We rejected the hypothesis of erysipelas, due to the clinical features, and our diagnostic hypotheses were oriented towards sporotrichosis, atypical mycobacteriosis, cutaneous tuberculosis and cutaneous sarcoidosis. Histological examination performed after a skin biopsy was compatible with a diagnosis of sporotrichosis. However, PCR performed on fresh tissue demonstrated the presence of M. marinum. Conclusion. The case reported is interesting for the unusual clinical localization and modality of infection. The patient became infected by contact with contaminated remains or in the sea, in a geographical area not endemic for M. marinum. The previous state of immunosuppression favoured infection; however, the presence of M. marinum in this area suggests a possible tropicalization of the water of the Mediterranean Sea. To our knowledge, this case is the only one reported in the literature with this modality of infection and in that geographical area. PMID- 29026616 TI - First report of fatal disseminated microsporidiosis in two inland bearded dragons Pogona vitticeps in Japan. AB - Introduction.Encephalitozoon pogonae is a newly described pathogen belonging to the phylum Microsporidia. In Austria and the USA, this species has been isolated from fatal and disseminated cases of captive-bred inland bearded dragons. Here, we report the case of fatal disseminated microsporidiosis caused by E. pogonae in two bearded dragons in Japan. Case Presentation. The two lizards from different private households in Tokyo, Japan, had been brought to an animal hospital for examination. In both cases, the animal presented with a history of weight loss for several weeks. There were no improvements in clinical symptoms and the lizards deteriorated and finally died. Histopathological examination demonstrated necrotizing granulomatous inflammation attributed to disseminated microsporidian infection. Nucleotide sequencing of the nuclear ribosomal internal transcribed spacer region identified the microsporidian as E. pogonae with sequence identity of 100 %. Conclusion. We report the first case, to our knowledge, of disseminated microsporidiosis caused by E. pogonae in inland bearded dragons in Japan. Although it is difficult to diagnose prenatally since the signs are nonspecific, the disease should be considered in the differential diagnosis of chronic infections that do not respond to antibiotics. PMID- 29026618 TI - A case of polymicrobial anaerobic spondylodiscitis due to Parvimonas micra and Fusobacterium nucleatum. AB - Introduction. Here, we present a case of polymicrobial anaerobic spondylodiscitis. Case Presentation. A forty-five year-old female patient was referred to a specialist orthopaedic hospital with an eight week history of back pain without fevers. X-ray imaging and magnetic resonance imaging showed acute osteomyelitis of the twelfth thoracic and first lumbar vertebrae. Prolonged enrichment cultures grew Parvimonas micra and Fusobacterium nucleatum, identified by matrix-assisted laser desorption ionisation-time of flight (MALDI-ToF) mass spectrometry (MS). The patient was successfully treated with six weeks of intravenous ertapenem and oral clindamycin. Conclusion. Anaerobic discitis is rare, and polymicrobial discitis is rarer still. A PubMed literature review revealed only seven cases of F. nucleatum discitis and only twelve cases of P. micra discitis; this includes only one other reported case of a polymicrobial discitis due to infection with both anaerobes. We emphasise the importance of prolonging enrichment culture and the use of fast yet accurate identification of anaerobes using MALDI-ToF MS in these infections. PMID- 29026617 TI - Cerebral vasculitis and intracranial multiple aneurysms in a child with Lyme neuroborreliosis. AB - : Introduction. Lyme borreliosis is a multisystem tick-borne disease caused by Borrelia burgdorferi. Neurological manifestations are reported in up to 15 % of adult patients with Lyme disease, while the frequency among children is higher. The most common manifestations are painful radiculopathy, facial nerve paresis and lymphocytic meningitis. Epileptic seizures and cerebral vasculitis with stroke or aneurysms are very rare complications. Case presentation. We describe a paediatric patient with sensorineural auditory dysfunction, headache, fatigue and epileptic seizures as sequelae of meningoencephalitis/Lyme neuroborreliosis (LNB) caused by B. burgdorferi. Brain magnetic resonance imaging revealed widespread enhancement of the leptomeninges, cranial nerves and artery walls compatible with vasculitis and disturbances in cerebrospinal fluid (CSF) circulation. The patient was treated with ceftriaxone for 2 weeks. Two years later, the patient had an ischemic stroke. Brain magnetic resonance angiography revealed multiple aneurysms, which were not present previously. The largest aneurysm was operated rapidly. The patient was treated with another course of intravenous ceftriaxone for 4 weeks and pulse therapy with corticosteroids. He recovered well. CONCLUSION: . This unique case demonstrates complications of LNB that can result in serious morbidity or even mortality. Lumbar puncture and analysis should be considered for paediatric patients with epileptic seizures or cerebrovascular events living in a Lyme borreliosis endemic area. PMID- 29026619 TI - 16S rRNA deep sequencing identifies Actinotignum schaalii as the major component of a polymicrobial intra-abdominal infection and implicates a urinary source. AB - Introduction. It can be difficult to catalogue the individual organisms comprising polymicrobial patient infections, both because conventional clinical microbiological culture does not facilitate the isolation and enumeration of all members of a complex microbial community, and because fastidious organisms may be mixed with organisms that grow rapidly in vitro. Empiric antimicrobial treatment is frequently employed based on the anatomical site and the suspected source of the infection, especially when an appropriately collected surgical specimen is not obtained. Case presentation. We present a case of an intra-abdominal infection in a patient with complex anatomy and recurrent urinary tract infections. Imaging did not reveal a clear source of infection, no growth was obtained from urine cultures and initial abdominal fluid cultures were also negative. In contrast, 16S rRNA deep sequencing of abdominal fluid samples revealed mixed bacterial populations with abundant anaerobes, including Actinotignum schaalii (Actinobaculum schaalii). Ultimately, only Enterobacter cloacae complex and meticillin-resistant Staphylococcus aureus, both of which were identified by sequencing, were recovered by culture. Conclusion. The clinical application of 16S rRNA deep sequencing can more comprehensively and accurately define the organisms present in an individual patient's polymicrobial infection than conventional microbiological culture, detecting species that are not recovered under standard culture conditions or that are otherwise unexpected. These results can facilitate effective antimicrobial stewardship and help elucidate the possible origins of infections. PMID- 29026620 TI - Streptococcus suis serotype 9 endocarditis and subsequent severe meningitis in a growing pig despite specific bactericidal humoral immunity. AB - INTRODUCTION: . Meningitis and endocarditis are common pathologies of Streptococcussuis infections in pigs and humans. S. suis serotype 9 strains contribute substantially to health problems in European pig production, and immune prophylaxis against this serotype is very difficult. CASE PRESENTATION: . We report the clinical course and histopathological picture of a 10-week-old growing pig following experimental intravenous infection with S. suis serotype 9. The piglet showed rapid onset of severe clinical signs of meningitis 11 days post intravenous challenge following prime-booster vaccination. Histopathological findings revealed a diffuse fibrinosuppurative leptomeningitis. Additionally, a polyphasic endocarditis valvularis thromboticans with numerous bacterial colonies was diagnosed. Bacteriological culture of the brain and the mitral valve confirmed association with the challenge strain. However, virulent serotype 2 and 9 strains were killed in the blood of this piglet ex vivo prior experimental infection. CONCLUSION: . Endocarditis induced by S. suis infection might develop and persist despite the presence of high specific bactericidal activity in the blood. Severe leptomeningitis is a putative sequela of such an endocarditis. PMID- 29026621 TI - Aeromonas species endogenous endophthalmitis. AB - INTRODUCTION: Aeromonas spp. are Gram-negative bacteria classically associated with water sources and a variety of clinical infections in humans. CASE PRESENTATION: A 79-year-old female patient presented with gastroenteritis with associated Aeromonas spp. bloodstream infection. Two days after admission she developed eye symptoms and was diagnosed with endophthalmitis and underwent emergency evisceration and implant. Aeromonas spp. was also recovered from intra ocular samples. CONCLUSION: In this case gastroenteritis caused by Aeromonas spp. was complicated by bloodstream infection which seeded to the eye, resulting in rapidly progressive endogenous endophthalmitis. PMID- 29026622 TI - Lower extremity mycotic aneurysm in a patient with Listeria monocytogenes - associated prosthetic valve endocarditis. AB - Introduction.Listeria monocytogenes is a rare etiology of infectious endocarditis with only 30 cases of prosthetic valve and about twice as many native valve infections described in the literature. We describe an unusual presentation of an endovascular embolic phenomenon with associated lower extremity mycotic aneurysm due to Listeria monocytogenes prosthetic aortic valve and aortic endograft infection. Case presentation. This is a case of an elderly gentleman with prior history of bioprosthetic aortic valve placement and aortic arch repair who was admitted with several weeks of constitutional symptoms and left lower leg pain. Diagnostic work-up was consistent with thrombosed popliteal artery aneurysm. Blood cultures were positive for Listeria monocytogenes. A transesophageal echocardiogram revealed vegetation on the bioprosthetic valve. The patient underwent arterial bypass and ligation of the aneurysm as well as redoing of his aortic valve and aortic graft replacement. Histopathology of the aortic valve was remarkable for acute inflammation and Gram-positive coccobacilli and bacilli occupying intracellular spaces. The results of broad-range bacterial 16S rRNA PCR and sequence analysis of unfixed aortic valve tissue confirmed detection of L. monocytogenes. Conclusion. Infective endocarditis attributable to species of the genus Listeriais a rare entity. As such, there are no specific guidelines for treatment of Listeria monocytogenesendocarditis. However, combination of penicillin or ampicillin with gentamicin is the most acceptable approach described in the literature. Our patient was treated with ampicillin and gentamicin for 6 weeks followed by life-long amoxicillin suppression therapy. The patient remained asymptomatic at a 6 months follow up visit. PMID- 29026623 TI - A case of Vibrio vulnificus infection complicated with fulminant purpura: gene and biotype analysis of the pathogen. AB - Introduction.Vibrio vulnificus (V. vulnificus) causes a severe infection that develops in the compromised host. Its pathophysiology is classified into three types: (1) primary septicaemia, (2) gastrointestinal illness pattern and (3) wound infection pattern. Of these, primary septicaemia is critical. V. vulnificus can be classified into three biotypes and two genotypes and its pathogenicity is type-dependent. Case presentation. A 47-year-old man presented to a local hospital with chief complaints of fever, bilateral lower limb pain and diarrhoea. He had no history of foreign travel or known medical problems. He was in septic shock and developed fulminant purpura within 24 h of the onset. High-dose vasopressor and antibiotic administration failed to alter his status and he died 3 days after the onset of symptoms. V. vulnificus was isolated from blood, skin and nasal discharge cultures. Biotype and gene analysis of the microbe isolated identified it as Biotype 3, mainly reported in Israel in wound infections, and Genotype E, implicating an environmental isolate. These typing analyses indicated that the microbe isolated could be classified as a type with low pathogenicity. Conclusion. This case highlighted that Biotype 3 and Genotype E can also cause primary septicaemia. Although the majority of reports on Biotype 3 have been from the Middle East, this experience with the present case provided evidence that the habitat of Biotype 3 V. vulnificus has been extending to East Asia as well. PMID- 29026624 TI - First case of human peritoneal cysticercosis mimicking peritoneal carcinosis: necessity of laparoscopy and histologic assessment for the correct diagnosis. AB - Introduction. Correct diagnosis of peritoneal infectious disease can be extremely difficult due to non-specific clinical features. Thus, careful assessment with thorough histopathological work-up is essential. Here, we report the first case of human peritoneal cysticercosis mimicking peritoneal carcinosis. Case presentation. The patient presented with recurring ascites and a tumour in the Douglas cavity accompanied by elevated tumour markers. There were no signs of systemic infection. On laparoscopy, the tumour was resected completely. Histology revealed a granulomatous reaction and a diagnosis suspicious of tuberculosis was made. Only after additional sections, avital cestode-fragments were visible and Taenia martis DNA was detected. Further staging by computerized tomography scan of the lung and brain turned out negative and the patient recovered quickly. Conclusion. Laparoscopy and histopathological examination can be extremely helpful for correct diagnosis and management in uncertain recurrent ascites. This case clearly demonstrates that orphan infectious diseases should also be considered. Only complete histopathological examination with serial sections and additional molecular testing can lead to the appropriate diagnosis. PMID- 29026625 TI - Rash and hepatosplenomegaly in a newborn. PMID- 29026626 TI - Acute diarrhoea due to a Shiga toxin 2e-producing Escherichia coli O8 : H19. AB - Introduction. Identification of non-O157 Shiga-toxin-producing Escherichia coli (STEC) infections may be underestimated in microbiological diagnosis. Case presentation. A 58-year-old woman developed diarrhoea with watery and subsequently mucous stool. Initial multiplex PCR testing revealed a positive result for stx2 . Culture isolation of a STEC was successful only after repeated inoculation of chromogenic E. coli media. Molecular characterization was performed and identified the isolate as stx2e-positive STEC of serotype O8 : H19. The strain harboured lpfA, but not eae. Conclusion. This case highlights the usefulness of initial multiplex PCR for diagnosis of non-O157 STEC infection. PMID- 29026627 TI - Marked peripheral eosinophilia due to prolonged administration of posaconazole. AB - Introduction. Posaconazole is a triazole antifungal that is used in the treatment of a variety of fungal infections, as well as in the management of mucormycosis (on an off-label basis). Eosinophilia associated with exposure to azole antifungals has been described rarely in the literature. Case presentation. A 31 year-old male on peritoneal dialysis (PD) for end-stage renal disease, secondary to diabetic nephropathy, presented to hospital with abdominal pain after a trip to St Lucia. He was taken to the operating room, where the PD catheter was removed and an abdominal-wall abscess was debrided. Rhizopus species was recovered on culture of the abdominal-wall tissue, and the patient was started on amphotericin B deoxycholate. He was subsequently stepped down to posaconazole, for a planned treatment duration of 12 months. Approximately 43 days after the initiation of posaconazole, it was noted that his peripheral eosinophil count started to rise. No other cause for the eosinophilia was identified. Posaconazole was discontinued, and the patient's eosinophil count began to drop 2 days later. The temporal association of eosinophilia following initiation of posaconazole and the subsequent improvement after drug discontinuation suggests a probable causal relationship. Conclusion. At the time of writing, there have been only two other published cases of azole-associated peripheral eosinophilia. In reporting this case, we hope to increase health-care provider awareness of this rare adverse event. For patients receiving prolonged therapy with posaconazole, periodic monitoring of the complete blood count with differential may be considered. PMID- 29026628 TI - Cutaneous fungal infection in an immunocompromised host. PMID- 29026629 TI - A case of Exophiala dermatitidis infection in a child after allogeneic stem cell transplantation: case report and literature review of paediatric cases. AB - Introduction.Exophiala dermatitidisis a relatively common environmental black yeast with worldwide distribution and is a rare cause of fungal infection, mostly in patients with certain predisposing factors. Due to the rarity of the infection, little is known about the specific predisposing factors, way of infection or treatment. Case presentation. Here, we report what is to our knowledge the first case of E. dermatitidis infection in a child after allogeneic stem cell transplantation. We also review all paediatric cases reported in the literature since 1993. Conclusion. This is, to our knowledge, the first reported case of E. dermatitidis infection in a child after allogeneic stem cell transplantation. This report should increase the awareness of E. dermatitidis in immunocompromised paediatric patients, particularly after stem cell transplantation. PMID- 29026630 TI - Sinister seafood: bacteraemia secondary to non-O1/O139 Vibrio cholerae infection. AB - Introduction.Vibrio species are curved, motile Gram-negative bacilli found in estuarine and marine environments, and are known to cause to gastroenteritis, skin and soft tissue infections, and septicaemia. While not responsible for cholera epidemics, non-O1/O139 Vibrio cholerae (NOVC) is increasingly reported as a cause of gastroenteritis. Case presentation. A 66-year-old man presented to an emergency department with a 1 week history of epigastric pain, emesis and fever. Blood cultures drawn on admission initially demonstrated Gram-negative bacilli, and ultimately grew NOVC, which was later confirmed by matrix-assisted laser desorption ionization-time of flight MS. Subsequent history revealed that the patient had eaten fish and seafood prior to falling ill. He was treated with intravenous ceftriaxone and oral doxycycline while admitted, and oral ciprofloxacin and doxycycline upon discharge. His bacteraemia was believed to be secondary to altered gut anatomy from prior surgery and proton-pump inhibitor use. Conclusion. Risk factors for NOVC bacteraemia include cirrhosis, immunosuppression and other forms of liver disease. Cases are often linked to a history of seafood ingestion when water temperatures rise, enabling Vibrio species to proliferate. While the optimal management of NOVC bacteraemia is unclear, a combination of a third-generation cephalosporin with a tetracycline has been suggested. Physicians should maintain a high index of suspicion for this pathogen when evaluating ill patients with a history of liver disease and seafood ingestion. PMID- 29026631 TI - Salmonella Typhimurium gastroenteritis leading to chronic prosthetic vascular graft infection. AB - Introduction. It is estimated up to 6 % of prosthetic vascular grafts become infected. Staphylococcus aureus is predominant in early infection and coagulase negative staphylococci are predominant in late infections. Enterobacteriaceae cause 14-40 % of prosthetic vascular graft infections. This is, to our knowledge the first reported case of Salmonella gastroenteritis causing chronic prosthetic vascular graft infection (PVGI). Case presentation. A 57 years old lady presented with signs and symptoms of prosthetic vascular graft infection. Three years earlier, she had undergone a prosthetic axillo-femoral bypass graft for critical limb ischaemia. The infected prosthetic vascular graft was removed and Salmonella Typhimurium was isolated on culture. In the intervening period, Salmonella Typhimurium was isolated from a faecal specimen, collected during an episode of acute gastroenteritis. Whole-genome sequencing (WGS) showed that the respective Salmonella Typhimurium isolates differed by only a single nucleotide polymorphism (SNP). Salmonella Typhimurium was not isolated on culture of a faecal specimen collected five days following cessation of antimicrobial therapy. Six months after removal of the prosthetic graft, the patient remains under follow-up for her peripheral vascular disease, which currently requires no further surgical intervention. Conclusion. This case has clear implications for the management of chronic PVGI. It is vital to collect high-quality surgical specimens for microbiological analysis and empirical choices of antibiotics are unlikely to cover all potential pathogens. It may also be prudent to enquire about a history of acute gastroenteritis when assessing patients presenting with chronic PVGI. PMID- 29026632 TI - Salmonella Oranienburg haemorrhagic cystitis in an immunocompetent young male. AB - Introduction. Non-typhoidal salmonella (NTS) bacteriuria is extremely rare. Haemorrhagic cystitis is defined by urinary symptoms including haematuria, frequency, urgency and dysuria. Reports of haemorrhagic cystitis caused by NTS are exceptionally uncommon, especially in immunocompetent, young, male patients. Case presentation. A 27-year-old male with no past medical history presented to the Emergency Department with a 24 h history of visible haematuria having returned five days earlier from a five month trip across South America. He also reported one week of suprapubic pain with associated dysuria, frequency, difficulty voiding and fevers. A non-contrast abdominal and pelvic CT scan showed a grossly thick-walled bladder with marked peri-vesical stranding, strongly suggestive of cystitis, with an unremarkable appearance of the remainder of the urinary tract. Urine culture at presentation subsequently grew Salmonella Oranienburg. The patient reported total symptomatic relief following just one week of oral antibiotics with no recurrence to date. Conclusion. NTS urinary tract infection (UTI), especially in healthy young people, is very rare. In such cases, the existence of underlying diseases must be considered, especially diabetes mellitus, urological abnormalities and immunosuppression. However, a diagnosis of NTS UTI should also be among the differentials in those presenting with acute urinary symptoms preceded by gastrointestinal upset, especially following travel in underdeveloped countries. Antibiotic therapy is invariably indicated and close follow-up is warranted due to the risk of several potentially serious complications. PMID- 29026633 TI - The first fatal case of Corynebacterium ulcerans infection in Japan. AB - Introduction.Corynebacterium ulcerans (C. ulcerans) is a zoonotic pathogen that occasionally causes diphtheria-like symptoms in humans. Cases of C. ulcerans infection have been increasing in recent years, and C. ulcerans has been recognized as an emerging pathogen. Case presentation. Here we report a case of asphyxia death due to pseudomembrane caused by diphtheria toxin (DT)-producing C. ulcerans. This is, to our knowledge, the first fatal case of C. ulcerans infection in Japan. A strain of C. ulcerans was obtained from the patient's pet cat and was confirmed to be identical to the patient's isolate by sequencing of the 16S rRNA gene and the DT gene, by pulsed-field gel electrophoresis (PFGE) and by ribotyping. In the same way, it was revealed that the isolate in this case belonged to the same molecular type as the C. ulcerans 0102 isolated from the first case in Japan in a distant prefecture 15 years earlier, in 2001. Conclusion. DT-producing C. ulcerans can be contracted from a companion animal and causes human death if the appropriate treatment is delayed. The finding indicates that this molecular type of virulent C. ulcerans is currently widespread in Japan. PMID- 29026634 TI - HIV positive patient with GBS-like syndrome. AB - : Introduction. Guillain-Barre Syndrome (GBS) is an acute demyelinating polyneuropathy which can occur post-infection. Criteria of diagnosis of GBS include areflexia with progressive bilateral weakness in arms and legs. GBS can lead to severe respiratory and cardiac complications. The fatality rate can be up to 5 % in patients, depending on the severity of the symptoms. HIV can cause a range of neurological disorders including, on rare occasions, GBS. GBS can occur at any stage of HIV infection, highlighting the complexity of diagnosis of GBS within HIV patients. Case presentation. A 57 year old female with lumbar back pain radiating to the legs, poor mobility and tiredness, with reports of a viral like illness four days previously, was initially diagnosed with a lower respiratory tract infection and discharged. Seventeen days later the patient was readmitted to hospital with progressive lower and upper limb weakness, areflexia and sensory loss. She was diagnosed with GBS and was unexpectedly discovered to be HIV-positive. HIV avidity was low indicating a recently acquired HIV infection. The patient was treated with intravenous immunoglobulin for five days for the GBS and commenced antriretrovirals for HIV. The patient was discharge from hospital 53 days after admission with walking aids and regular physiotherapy follow-up. CONCLUSION: . This case highlighted the need for all clinicians to be aware that patients with symptoms of GBS, regardless of clinical history should be offered an HIV test. GBS can be the first sign a patient is HIV-positive. PMID- 29026635 TI - Lytic lesions: looking lethal but leaving room for a simple cure? A case of Veillonella spinal osteomyelitis. AB - Introduction. Diagnosing clinically significant infection caused by Veillonella species can be a challenge. Veillonella species are usually found in polymicrobial processes and are often regarded as a contaminant. Additionally, they are slow to grow in culture and this can lead to a delay in diagnosis or a missed diagnosis. Veillonella species rarely cause serious infections, but have been found to cause bacteraemia and osteomyelitis. Case presentation. A 67-year old man with a history of treated prostate cancer presented with 2 weeks of progressive lower back pain and weakness. He had no signs or symptoms of active infection. He was found to have multiple lytic lesions in his lumbar spine that were initially suspected to be secondary to metastatic cancer. However, tissue and blood cultures were ultimately consistent with infection by Veillonella species. Conclusion. This case report highlights the fact that uncommon illnesses can often present like common disease processes. Because of the radiological appearance of the patient's lesions and his lack of infectious symptoms, a diagnosis of metastatic cancer was initially thought to be likely. Relying on the pathology and culture data, and waiting on the initiation of antimicrobials until the diagnosis was accurately established, were important factors in diagnosing and treating this infection. Veillonella species can be true pathogens when found in isolation and associated with bacteraemia. Additionally, they can cause an indolent infection that can lead to osteomyelitis. Failure to accurately diagnose this infection in a timely manner would have led to ongoing debility and diagnostic uncertainty for this patient. PMID- 29026636 TI - Neck abscess due to Salmonella Choleraesuis: case study and literature review. AB - Introduction. We herein describe a case with a neck abscess due to non-typhoidal Salmonella (NTS). NTS habitually reside in our environment and colonize all animals including mammals. Colonizations of pigs, chickens, cows and sheep are important because food poisoning episodes in human are often associated with meat. Extra-intestinal infection due to NTS has numerous presentations and complications, with aortic aneurysms being common. Case presentation. A 26-year old Japanese male complaining of left-sided neck swelling was referred to our hospital for a suspected deep neck abscess. An enhanced computed tomography scan of the neck revealed a low density lesion in the left-sided deep neck area, and consequently the patient underwent urgent incision and drainage. After this urgent operation, Salmonella Choleraesuis was isolated from a greyish-white abscess. The patient ultimately recovered with antimicrobial administration, though re-incision for lymphadenectomy was necessary. The neck abscess may have developed because he had eaten raw meat. Furthermore, untreated diabetes mellitus was diagnosed at presentation. Conclusion.Salmonella enterica serovar Choleraesuis infections are rare in Japan. NTS are generally recognized as important pathogens in food poisoning globally, and attention is required to avoid the development of extra-intestinal infections. In Japan, the increasing lifestyle diversity in recent years highlights the importance of recognizing rare infections. PMID- 29026638 TI - Effect of antimicrobials administered via liquid feed on the occurrence of sulphonamide and trimethoprim resistant Enterobacteriaceae: case-control study. AB - BACKGROUND: Drugs for the treatment of groups of pigs receiving liquid feed are frequently mixed into the feed and administered via the pipelines of the feeding installations. In-feed antimicrobials may select antimicrobial resistant strains among the bacteria which form the biofilm of these pipelines and are shed into the liquid feed. OBJECTIVE AND METHODS: In order to evaluate the risk of selecting antimicrobial resistant bacteria in the biofilm of liquid feeding installations, the effect of the administration of antimicrobials via the pipelines on the occurrence of antimicrobial resistance in the feed was examined in a case-control study. A premix containing either sulphonamide plus trimethoprim or sulphonamide plus chlortetracycline plus tylosin or chlortetracycline was administered via the pipelines to each batch of bought-in fattening pigs in 7, 3 and 3 case farms respectively, whereas antimicrobials had not been administered via the liquid feeding installation for at least 2 years in the 14 control farms. Enterobacteriaceae and sulphonamide-trimethoprim resistant Enterobacteriaceae were counted in twelve and eight feed samples collected in each case and in each control farm respectively during one fattening period. The semiparametric Generalized Estimating Equations (GEE) method was used for the statistical data analysis. RESULTS: The ratio of sulphonamide and trimethoprim resistant to total Enterobacteriaceae was higher in the feed of the case farms compared to the control farms (P < 0.001) and did not decrease after treatment during the fattening period. CONCLUSION: The administration of antimicrobials via the liquid feeding installation selects antibiotic resistant bacteria in the biofilm lining the pipelines, which may contaminate the liquid feed for extended periods and transmit their resistance genes to the gastrointestinal flora of the pigs. Alternatives to the administration of antimicrobials via pipelines of liquid feeding installations for group treatment should be developed. PMID- 29026637 TI - A review of selected Arboviruses during pregnancy. AB - Arboviruses are emerging infectious diseases with the ability to expand geographically and rapidly affect large populations. The recent epidemic caused by the Zika virus in the Americas and congenital Zika syndrome associated with maternal infection has called out attention to the importance of studying arboviruses during pregnancy. This is a review on selected arboviruses infections during gestation, including Zika, Chikungunya, Dengue and Yellow Fever viruses. Issues such as historical overview, pathogenesis, transmission, clinical conditions, diagnosis, treatment and prevention are addressed. PMID- 29026639 TI - Optimising the acceptability and feasibility of novel complex interventions: an iterative, person-based approach to developing the UK Morita therapy outpatient protocol. AB - BACKGROUND: The aim of this paper is to showcase best practice in intervention development by illustrating a systematic, iterative, person-based approach to optimising intervention acceptability and feasibility, as applied to the cross cultural adaptation of Morita therapy for depression and anxiety. METHODS: We developed the UK Morita therapy outpatient protocol over four stages integrating literature synthesis and qualitative research. Firstly, we conducted in-depth interviews combining qualitative and cognitive interviewing techniques, utilising vignettes of Morita therapy being delivered and analysed using Framework analysis to investigate potential patients and therapists' perceptions of Morita therapy. Secondly, we developed qualitative themes into recommendations for optimising Morita therapy and synthesised Morita therapy literature in line with these to develop a draft protocol. Thirdly, we conducted repeat interviews with therapists to investigate their views of the protocol. Finally, we responded to these qualitative themes through protocol modification and tailoring our therapist training programme. RESULTS: As a consequence of literature describing Morita therapy and participants' perceptions of the approach, we developed both a therapy protocol and therapist training programme which were fit for purpose in proceeding to a UK-based Morita therapy feasibility study. As per our key qualitative findings and resulting recommendations, we structured our protocol according to the four-phased model of Morita therapy, included detailed guidance and warning points, and supported therapists in managing patients' expectations of the approach. CONCLUSIONS: Our systematic approach towards optimising intervention acceptability and feasibility prioritises the perspectives of those who will deliver and receive the intervention. Thus, we both showcase best practice in intervention development and demonstrate the application of this process to the careful cross-cultural adaptation of an intervention in which balancing both optimisation of and adherence to the approach are key. This presentation of a generalisable process in a transparent and replicable manner will be of interest to those both developing and evaluating complex interventions in the future. PMID- 29026640 TI - Directing the osteoblastic and chondrocytic differentiations of mesenchymal stem cells: matrix vs. induction media. AB - While both induction culture media and matrix have been reported to regulate the stem cell fate, little is known about which factor plays a more decisive role in directing the MSC differentiation lineage as well as the underlying mechanisms. To this aim, we seeded MSCs on HA-collagen and HA-synthetic hydrogel matrixes, which had demonstrated highly different potentials toward osteoblastic and chondrocytic differentiation lineages, respectively, and cultured them with osteogenic, chondrogenic and normal culture media, respectively. A systematic comparison has been carried out on the effects of induction media and matrix on MSC adhesion, cytoskeleton organization, proliferation, and in particular differentiation into the osteoblastic and chondrocytic lineages. The results demonstrated that the matrix selection had a much more profound effect on directing the differentiation lineage than the induction media did. The strong modulation effect on the transcription activities might be the critical factor contributing to the above observations in our study, where canonical Wnt-beta Catenin signal pathway was directly involved in the matrix-driven osteoblastic differentiation. Such findings not only provide a critical insight on natural cellular events leading to the osteoblastic and chondrocytic differentiations, but also have important implications in biomaterial design for tissue engineering applications. PMID- 29026641 TI - Surface hydrolysis-mediated PEGylation of poly(N-isopropyl acrylamide) based nanogels. AB - In this work, poly(N-isopropyl acrylamide-co-acrylamide) [P(NIPAAm-co-AAm)] nanogels were modified by hydrolysis above the lower critical solution temperature (LCST) to localize carboxylic acid functional groups at the surface (surface hydrolysis). PNIPAAm copolymerized with 15% and 20% nominal AAm in the feed were prepared and compared to equivalent hydrogels with acrylic acid. The effect and extent of surface hydrolysis was confirmed by potentiometric titration and zeta potential. These surface modified nanogels were then modified with primary amine functionalized PEG chains. Surface hydrolysis-mediated PEGylation had little effect on the swelling response of the nanogels, while also preventing adsorption of model proteins in physiological relevant conditions. While both 15% and 20% AAm gels both decreased protein adsorption, only the 20% AAm gels resulted in fully preventing protein adsorption. The results presented here point to surface hydrolysis as a new route to passivate nanogels for use in vivo. PMID- 29026643 TI - Mineralized collagen artificial bone repair material products used for fusing the podarthral joints with internal fixation-a case report. AB - In this study, we reported a case with collapse and subluxation of metatarsal cuneiform joint, navicular-cuneiform joint with subluxed the right first metatarsophalangeal joint. The injured medial column was internally fixed with compression arthrodesis. The fusion site was firmed up with BonGold(r) Bone Sponge and Bone Putty. The prognosis of fused navicular-cuneiform joint and metatarsal-cuneiform joint were examined by X-ray shortly after surgical operation and followed up 2, 4, 6, 9 and 13 weeks after the surgical operation. The medial column was perfectly fused by compression arthrodesis. These results justified and favored the application of mineralized collagen as an excellent alternative to autograft in fusing the podarthral joints with internal fixation. PMID- 29026642 TI - Locking system strengthened by biomimetic mineralized collagen putty for the treatment of osteoporotic proximal humeral fractures. AB - The current study is to observe the effect of the locking system strengthened by biomimetic mineralized collagen putty for the treatment of senile proximal humeral osteoporotic fractures. From January 2012 to December 2015, 80 cases of senile patients with osteoporotic proximal humeral fractures were randomly divided into an observation group and a control group, each group with a total of 40 cases. The control group was simply treated with locking plate. The observation group was treated with locking plate in combination with biomimetic mineralized collagen putty. The therapeutic effect thereby was observed. The excellent and satisfactory rate was 90% in observation group and was 72.5% in control group. The difference between the two groups was statistically significant (chi2 = 5.3312, P < 0.05). The fracture healing time was 11.82 +/- 3.62 weeks in observation group and 19.78 +/- 5.46 weeks in control group. The shoulder joint function score was 89.63 +/- 8.12 in observation group and 76.92 +/- 8.18 in control group. There was significant difference between the two groups (t = 7.1272; 12.7834, P < 0.05). The complication rate was 10% in the observation group and 32.5% in the control group (chi2 = 7.3786, P < 0.05). Locking system strengthened by biomimetic mineralized collagen putty has advantages such as accelerating healing of senile proximal humeral fracture, improving the therapeutic effect, reducing the complications. As one of the optimal internal fixation method, it provides a new option for better treatment of senile osteoporotic fracture. PMID- 29026644 TI - Wet-spinning fabrication of shear-patterned alginate hydrogel microfibers and the guidance of cell alignment. AB - Native tissue is naturally comprised of highly-ordered cell-matrix assemblies in a multi-hierarchical way, and the nano/submicron alignment of fibrous matrix is found to be significant in supporting cellular functionalization. In this study, a self-designed wet-spinning device appended with a rotary receiving pool was used to continuously produce shear-patterned hydrogel microfibers with aligned submicron topography. The process that the flow-induced shear force reshapes the surface of hydrogel fiber into aligned submicron topography was systematically analysed. Afterwards, the effect of fiber topography on cellular longitudinal spread and elongation was investigated by culturing rat neuron-like PC12 cells and human osteosarcoma MG63 cells with the spun hydrogel microfibers, respectively. The results suggested that the stronger shear flow force would lead to more distinct aligned submicron topography on fiber surface, which could induce cell orientation along with fiber axis and therefore form the cell-matrix dual-alignment. Finally, a multi-hierarchical tissue-like structure constructed by dual-oriented cell-matrix assemblies was fabricated based on this wet-spinning method. This work is believed to be a potentially novel biofabrication scheme for bottom-up constructing of engineered linear tissue, such as nerve bundle, cortical bone, muscle and hepatic cord. PMID- 29026645 TI - Synthesis and characterization of collagen/PLGA biodegradable skin scaffold fibers. AB - The aim of this study is to investigate the applicability of poly(lactic-co glycolic acid) (PLGA)/collagen composite scaffold for skin tissue engineering. PLGA and collagen were dissolved in HFIP as a common solvent and fibrous scaffolds were prepared by electrospinning method. The scaffolds were characterized by scanning electron microscopy (SEM), FTIR spectroscopy, mercury porosimetry, tensile strength, biocompatibility assays and Biodegradation. Cytotoxicity and cell adhesion were tested for two cell line groups, human dermal fibroblast (HDF) and human keratinocyte (HaCat). SEM images showed appropriate cell adhesion to the scaffold for both cell lines. MTT assays indicated that the cell viability of HDF cells increased with time, but the number of HaCat cells decreased after 14 days. The ultimate tensile strength was suitable for skin substitute application, but its elongation at break was rather low. For successful clinical application of the PLGA/collagen scaffold, some properties especially mechanical strain needs to be improved. PMID- 29026646 TI - Binary titanium alloys as dental implant materials-a review. AB - Titanium (Ti) has been used for long in dentistry and medicine for implant purpose. During the years, not only the commercially pure Ti but also some alloys such as binary and tertiary Ti alloys were used. The aim of this review is to describe and compare the current literature on binary Ti alloys, including Ti-Zr, Ti-In, Ti-Ag, Ti-Cu, Ti-Au, Ti-Pd, Ti-Nb, Ti-Mn, Ti-Mo, Ti-Cr, Ti-Co, Ti-Sn, Ti Ge and Ti-Ga, in particular to mechanical, chemical and biological parameters related to implant application. Literature was searched using the PubMed and Web of Science databases, as well as google without limiting the year, but with principle key terms such as ' Ti alloy', 'binary Ti ', 'Ti-X' (with X is the alloy element), 'dental implant' and 'medical implant'. Only laboratory studies that intentionally for implant or biomedical applications were included. According to available literatures, we might conclude that most of the binary Ti alloys with alloying <20% elements of Zr, In, Ag, Cu, Au, Pd, Nb, Mn, Cr, Mo, Sn and Co have high potential as implant materials, due to good mechanical performance without compromising the biocompatibility and biological behaviour compare to cp-Ti. PMID- 29026647 TI - Progress in development of bioderived materials for dermal wound healing. AB - Treatment of acute and chronic wounds is one of the primary challenges faced by doctors. Bioderived materials have significant potential clinical value in tissue injury treatment and defect reconstruction. Various strategies, including drug loading, addition of metallic element(s), cross-linking and combining two or more distinct types of materials with complementary features, have been used to synthesize more suitable materials for wound healing. In this review, we describe the recent developments made in the processing of bioderived materials employed for cutaneous wound healing, including newly developed materials such as keratin and soy protein. The focus was on the key properties of the bioderived materials that have shown great promise in improving wound healing, restoration and reconstruction. With their good biocompatibility, nontoxic catabolites, microinflammation characteristics, as well as their ability to induce tissue regeneration and reparation, the bioderived materials have great potential for skin tissue repair. PMID- 29026648 TI - Clinical impact of skin autofluorescence on high-sensitivity troponin T in hypertensive patients. AB - BACKGROUND: Recent studies have reported the importance of high-sensitivity troponin T (hs-cTnT) or skin autofluorescence (AF) as a cardiovascular risk factor. However, little is known about the relationship between these two markers. The aim of this study was to clarify the clinical impact of skin AF on hs-cTnT in hypertensive patients, from the perspective of primary prevention of cardiovascular events. METHODS: In total, 457 outpatients on treatment for hypertension [182 men and 275 women; mean (+/- SD) age, 67 +/- 13 y] and with no history of cardiovascular events were enrolled. Hs-cTnT levels and skin AF were measured using commercial devices, and relationships between hs-cTnT levels and various clinical parameters including skin AF were examined. RESULTS: Hs-cTnT was detected in 405 (88.6%) patients. Skin AF was significantly higher in patients with detectable hs-cTnT than in those without detectable hs-cTnT [2.6 +/- 0.5 arbitrary units (AU) vs. 2.2 +/- 0.5 AU, respectively, p < 0.001]. In patients with detectable hs-cTnT, there was a significantly positive correlation between skin AF and Log-hs-cTnT (r = 0.41, p < 0.001). Furthermore, multiple regression analysis revealed that skin AF was the strongest variable associated with Log-hs cTnT as a subordinate factor (beta = 0.30, p < 0.001). CONCLUSIONS: The results of this study indicate that skin AF is an important determining factor for hs cTnT elevation in hypertensive patients with no history of cardiovascular events. PMID- 29026649 TI - Unique genome organization of non-mammalian papillomaviruses provides insights into the evolution of viral early proteins. AB - The family Papillomaviridae contains more than 320 papillomavirus types, with most having been identified as infecting skin and mucosal epithelium in mammalian hosts. To date, only nine non-mammalian papillomaviruses have been described from birds (n = 5), a fish (n = 1), a snake (n = 1), and turtles (n = 2). The identification of papillomaviruses in sauropsids and a sparid fish suggests that early ancestors of papillomaviruses were already infecting the earliest Euteleostomi. The Euteleostomi clade includes more than 90 per cent of the living vertebrate species, and progeny virus could have been passed on to all members of this clade, inhabiting virtually every habitat on the planet. As part of this study, we isolated a novel papillomavirus from a 16-year-old female Adelie penguin (Pygoscelis adeliae) from Cape Crozier, Ross Island (Antarctica). The new papillomavirus shares ~64 per cent genome-wide identity to a previously described Adelie penguin papillomavirus. Phylogenetic analyses show that the non-mammalian viruses (expect the python, Morelia spilota, associated papillomavirus) cluster near the base of the papillomavirus evolutionary tree. A papillomavirus isolated from an avian host (Northern fulmar; Fulmarus glacialis), like the two turtle papillomaviruses, lacks a putative E9 protein that is found in all other avian papillomaviruses. Furthermore, the Northern fulmar papillomavirus has an E7 more similar to the mammalian viruses than the other avian papillomaviruses. Typical E6 proteins of mammalian papillomaviruses have two Zinc finger motifs, whereas the sauropsid papillomaviruses only have one such motif. Furthermore, this motif is absent in the fish papillomavirus. Thus, it is highly likely that the most recent common ancestor of the mammalian and sauropsid papillomaviruses had a single motif E6. It appears that a motif duplication resulted in mammalian papillomaviruses having a double Zinc finger motif in E6. We estimated the divergence time between Northern fulmar-associated papillomavirus and the other Sauropsid papillomaviruses be to around 250 million years ago, during the Paleozoic-Mesozoic transition and our analysis dates the root of the papillomavirus tree between 400 and 600 million years ago. Our analysis shows evidence for niche adaptation and that these non-mammalian viruses have highly divergent E6 and E7 proteins, providing insights into the evolution of the early viral (onco-)proteins. PMID- 29026650 TI - Accurate quantification of within- and between-host HBV evolutionary rates requires explicit transmission chain modelling. AB - Analyses of virus evolution in known transmission chains have the potential to elucidate the impact of transmission dynamics on the viral evolutionary rate and its difference within and between hosts. Lin et al. (2015, Journal of Virology, 89/7: 3512-22) recently investigated the evolutionary history of hepatitis B virus in a transmission chain and postulated that the 'colonization-adaptation transmission' model can explain the differential impact of transmission on synonymous and non-synonymous substitution rates. Here, we revisit this dataset using a full probabilistic Bayesian phylogenetic framework that adequately accounts for the non-independence of sequence data when estimating evolutionary parameters. Examination of the transmission chain data under a flexible coalescent prior reveals a general inconsistency between the estimated timings and clustering patterns and the known transmission history, highlighting the need to incorporate host transmission information in the analysis. Using an explicit genealogical transmission chain model, we find strong support for a transmission associated decrease of the overall evolutionary rate. However, in contrast to the initially reported larger transmission effect on non-synonymous substitution rate, we find a similar decrease in both non-synonymous and synonymous substitution rates that cannot be adequately explained by the colonization adaptation-transmission model. An alternative explanation may involve a transmission/establishment advantage of hepatitis B virus variants that have accumulated fewer within-host substitutions, perhaps by spending more time in the covalently closed circular DNA state between each round of viral replication. More generally, this study illustrates that ignoring phylogenetic relationships can lead to misleading evolutionary estimates. PMID- 29026653 TI - Corrigendum: In silico serotyping of E. coli from short read data identifies limited novel O-loci but extensive diversity of O:H serotype combinations within and between pathogenic lineages. AB - [This corrects the article DOI: 10.1099/mgen.0.000064.]. PMID- 29026652 TI - Pre-vaccine serotype composition within a lineage signposts its serotype replacement - a carriage study over 7 years following pneumococcal conjugate vaccine use in the UK. AB - Serotype replacement has been reported in carriage and disease after pneumococcal conjugate vaccine (PCV) introductions in the UK and globally. We previously described concurrent expansion and decline of sequence types associated with serotype replacement over 5 years following PCV introductions in the UK. Here we use whole-genome sequencing to fully characterise the population structure of pneumococcal isolates collected over seven winters encompassing PCV7 and PCV13 introductions in the UK, investigating the importance of lineages in serotype replacement. We analysed 672 pneumococcal genomes from colonised children of 4 years old or less. The temporal prevalence of 20 lineages, defined by hierarchical Bayesian analysis of population structure (BAPS), was assessed in the context of serotype replacement. Multiple serotypes were detected in the primary winter of sampling within three vaccine-type (VT) lineages BAPS4, BAPS10 and BAPS11, in which serotype replacement were observed. In contrast, serotype replacement was not seen in the remaining three VT lineages (BAPS1, BAPS13 and BAPS14), that expressed a single serotype (6B, 6A and 3, respectively) in the primary winter. One lineage, BAPS1 serotype 6B was undetectable in the population towards the end of the study period. The dynamics of serotype replacement, in this UK population, was preceded by the presence or absence of multiple serotypes within VT lineages, in the pre-PCV population. This observation could help predict which non-vaccine types (NVTs) may be involved in replacement in future PCV introductions here and elsewhere. It could further indicate whether any antibiotic resistance associated with the lineages is likely to be affected by replacement. PMID- 29026651 TI - SNVPhyl: a single nucleotide variant phylogenomics pipeline for microbial genomic epidemiology. AB - The recent widespread application of whole-genome sequencing (WGS) for microbial disease investigations has spurred the development of new bioinformatics tools, including a notable proliferation of phylogenomics pipelines designed for infectious disease surveillance and outbreak investigation. Transitioning the use of WGS data out of the research laboratory and into the front lines of surveillance and outbreak response requires user-friendly, reproducible and scalable pipelines that have been well validated. Single Nucleotide Variant Phylogenomics (SNVPhyl) is a bioinformatics pipeline for identifying high-quality single-nucleotide variants (SNVs) and constructing a whole-genome phylogeny from a collection of WGS reads and a reference genome. Individual pipeline components are integrated into the Galaxy bioinformatics framework, enabling data analysis in a user-friendly, reproducible and scalable environment. We show that SNVPhyl can detect SNVs with high sensitivity and specificity, and identify and remove regions of high SNV density (indicative of recombination). SNVPhyl is able to correctly distinguish outbreak from non-outbreak isolates across a range of variant-calling settings, sequencing-coverage thresholds or in the presence of contamination. SNVPhyl is available as a Galaxy workflow, Docker and virtual machine images, and a Unix-based command-line application. SNVPhyl is released under the Apache 2.0 license and available at http://snvphyl.readthedocs.io/ or at https://github.com/phac-nml/snvphyl-galaxy. PMID- 29026654 TI - Population genetic structuring of methicillin-resistant Staphylococcus aureus clone EMRSA-15 within UK reflects patient referral patterns. AB - Antibiotic resistance forms a serious threat to the health of hospitalised patients, rendering otherwise treatable bacterial infections potentially life threatening. A thorough understanding of the mechanisms by which resistance spreads between patients in different hospitals is required in order to design effective control strategies. We measured the differences between bacterial populations of 52 hospitals in the United Kingdom and Ireland, using whole-genome sequences from 1085 MRSA clonal complex 22 isolates collected between 1998 and 2012. The genetic differences between bacterial populations were compared with the number of patients transferred between hospitals and their regional structure. The MRSA populations within single hospitals, regions and countries were genetically distinct from the rest of the bacterial population at each of these levels. Hospitals from the same patient referral regions showed more similar MRSA populations, as did hospitals sharing many patients. Furthermore, the bacterial populations from different time-periods within the same hospital were generally more similar to each other than contemporaneous bacterial populations from different hospitals. We conclude that, while a large part of the dispersal and expansion of MRSA takes place among patients seeking care in single hospitals, inter-hospital spread of resistant bacteria is by no means a rare occurrence. Hospitals are exposed to constant introductions of MRSA on a number of levels: (1) most MRSA is received from hospitals that directly transfer large numbers of patients, while (2) fewer introductions happen between regions or (3) across national borders, reflecting lower numbers of transferred patients. A joint coordinated control effort between hospitals, is therefore paramount for the national control of MRSA, antibiotic-resistant bacteria and other hospital associated pathogens. PMID- 29026655 TI - Sharing of carbapenemase-encoding plasmids between Enterobacteriaceae in UK sewage uncovered by MinION sequencing. AB - Dissemination of carbapenem resistance among pathogenic Gram-negative bacteria is a looming medical emergency. Efficient spread of resistance within and between bacterial species is facilitated by mobile genetic elements. We hypothesized that wastewater contributes to the dissemination of carbapenemase-producing Enterobacteriaceae (CPE), and studied this through a cross-sectional observational study of wastewater in the East of England. We isolated clinically relevant species of CPE in untreated and treated wastewater, confirming that waste treatment does not prevent release of CPE into the environment. We observed that CPE-positive plants were restricted to those in direct receipt of hospital waste, suggesting that hospital effluent may play a role in disseminating carbapenem resistance. We postulated that plasmids carrying carbapenemase genes were exchanged between bacterial hosts in sewage, and used short-read (Illumina) and long-read (MinION) technologies to characterize plasmids encoding resistance to antimicrobials and heavy metals. We demonstrated that different CPE species (Enterobacter kobei and Raoultella ornithinolytica) isolated from wastewater from the same treatment plant shared two plasmids of 63 and 280 kb. The former plasmid conferred resistance to carbapenems (blaOXA-48), and the latter to numerous drug classes and heavy metals. We also report the complete genome sequence for Enterobacter kobei. Small, portable sequencing instruments such as the MinION have the potential to improve the quality of information gathered on antimicrobial resistance in the environment. PMID- 29026656 TI - Phylogenomics and comparative genomics of Lactobacillus salivarius, a mammalian gut commensal. AB - The genus Lactobacillus is a diverse group with a combined species count of over 200. They are the largest group within the lactic acid bacteria and one of the most important bacterial groups involved in food microbiology and human nutrition because of their fermentative and probiotic properties. Lactobacillus salivarius, a species commonly isolated from the gastrointestinal tract of humans and animals, has been described as having potential probiotic properties and results of previous studies have revealed considerable functional diversity existing on both the chromosomes and plasmids. Our study consists of comparative genomic analyses of the functional and phylogenomic diversity of 42 genomes of strains of L. salivarius using bioinformatic techniques. The main aim of the study was to describe intra-species diversity and to determine how this diversity is spread across the replicons. We found that multiple phylogenomic and non-phylogenomic methods used for reconstructing trees all converge on similar tree topologies, showing that different metrics largely agree on the evolutionary history of the species. The greatest genomic variation lies on the small plasmids, followed by the repA-type circular megaplasmid, with the chromosome varying least of all. Additionally, the presence of extra linear and circular megaplasmids is noted in several strains, while small plasmids are not always present. Glycosyl hydrolases, bacteriocins and proteases vary considerably on all replicons while two exopolysaccharide clusters and several clustered regularly interspaced short palindromic repeats-associated systems show a lot of variation on the chromosome. Overall, despite its reputation as a mammalian gastrointestinal tract specialist, the intra-specific variation of L. salivarius reveals potential strain-dependant effects on human health. PMID- 29026657 TI - Whole-genome sequencing to investigate a non-clonal melioidosis cluster on a remote Australian island. AB - Melioidosis is a tropical disease caused by the bacterium Burkholderia pseudomallei. Outbreaks are uncommon and can generally be attributed to a single point source and strain. We used whole-genome sequencing to analyse B. pseudomallei isolates collected from an historical 2-year long case cluster that occurred in a remote northern Australian indigenous island community, where infections were previously linked to a contaminated communal water supply. We analysed the genome-wide relatedness of the two most common multilocus sequence types (STs) involved in the outbreak, STs 125 and 126. This analysis showed that although these STs were closely related on a whole-genome level, they demonstrated evidence of multiple recombination events that were unlikely to have occurred over the timeframe of the outbreak. Based on epidemiological and genetic data, we also identified two additional patients not previously associated with this outbreak. Our results confirm the previous hypothesis that a single unchlorinated water source harbouring multiple B. pseudomallei strains was linked to the outbreak, and that increased melioidosis risk in this community was associated with Piper methysticum root (kava) consumption. PMID- 29026658 TI - Resolving plasmid structures in Enterobacteriaceae using the MinION nanopore sequencer: assessment of MinION and MinION/Illumina hybrid data assembly approaches. AB - This study aimed to assess the feasibility of using the Oxford Nanopore Technologies (ONT) MinION long-read sequencer in reconstructing fully closed plasmid sequences from eight Enterobacteriaceae isolates of six different species with plasmid populations of varying complexity. Species represented were Escherichia coli, Klebsiella pneumoniae, Citrobacter freundii, Enterobacter cloacae, Serratia marcescens and Klebsiella oxytoca, with plasmid populations ranging from 1-11 plasmids with sizes of 2-330 kb. Isolates were sequenced using Illumina (short-read) and ONT's MinION (long-read) platforms, and compared with fully resolved PacBio (long-read) sequence assemblies for the same isolates. We compared the performance of different assembly approaches including SPAdes, plasmidSPAdes, hybridSPAdes, Canu, Canu+Pilon (canuPilon) and npScarf in recovering the plasmid structures of these isolates by comparing with the gold standard PacBio reference sequences. Overall, canuPilon provided consistently good quality assemblies both in terms of assembly statistics (N50, number of contigs) and assembly accuracy [presence of single nucleotide polymorphisms (SNPs)/indels with respect to the reference sequence]. For plasmid reconstruction, Canu recovered 70 % of the plasmids in complete contigs, and combining three assembly approaches (Canu or canuPilon, hybridSPAdes and plasmidSPAdes) resulted in a total 78 % recovery rate for all the plasmids. The analysis demonstrated the potential of using MinION sequencing technology to resolve important plasmid structures in Enterobacteriaceae species independent of and in conjunction with Illumina sequencing data. A consensus assembly derived from several assembly approaches could present significant benefit in accurately resolving the greatest number of plasmid structures. PMID- 29026659 TI - Emergence and genomic diversification of a virulent serogroup W:ST-2881(CC175) Neisseria meningitidis clone in the African meningitis belt. AB - Countries of the African 'meningitis belt' are susceptible to meningococcal meningitis outbreaks. While in the past major epidemics have been primarily caused by serogroup A meningococci, W strains are currently responsible for most of the cases. After an epidemic in Mecca in 2000, W:ST-11 strains have caused many outbreaks worldwide. An unrelated W:ST-2881 clone was described for the first time in 2002, with the first meningitis cases caused by these bacteria reported in 2003. Here we describe results of a comparative whole-genome analysis of 74 W:ST-2881 strains isolated within the framework of two longitudinal colonization and disease studies conducted in Ghana and Burkina Faso. Genomic data indicate that the W:ST-2881 clone has emerged from Y:ST-175(CC175) bacteria by capsule switching. The circulating W:ST-2881 populations were composed of a variety of closely related but distinct genomic variants with no systematic differences between colonization and disease isolates. Two distinct and geographically clustered phylogenetic clonal variants were identified in Burkina Faso and a third in Ghana. On the basis of the presence or absence of 17 recombination fragments, the Ghanaian variant could be differentiated into five clusters. All 25 Ghanaian disease isolates clustered together with 23 out of 40 Ghanaian isolates associated with carriage within one cluster, indicating that W:ST-2881 clusters differ in virulence. More than half of the genes affected by horizontal gene transfer encoded proteins of the 'cell envelope' and the 'transport/binding protein' categories, which indicates that exchange of non capsular antigens plays an important role in immune evasion. PMID- 29026660 TI - Comparison of classical multi-locus sequence typing software for next-generation sequencing data. AB - Multi-locus sequence typing (MLST) is a widely used method for categorizing bacteria. Increasingly, MLST is being performed using next-generation sequencing (NGS) data by reference laboratories and for clinical diagnostics. Many software applications have been developed to calculate sequence types from NGS data; however, there has been no comprehensive review to date on these methods. We have compared eight of these applications against real and simulated data, and present results on: (1) the accuracy of each method against traditional typing methods, (2) the performance on real outbreak datasets, (3) the impact of contamination and varying depth of coverage, and (4) the computational resource requirements. PMID- 29026662 TI - Intrathecal and intraventricular antibiotics for postoperative Gram-negative meningitis and ventriculitis. AB - BACKGROUND: Postoperative meningitis is a growing cause of concern, especially with the evolution of multidrug-resistant organism. The authors evaluate the use of intraventricular/intrathecal (IVT/IT) antibiotics for postoperative gram negative meningitis in patients whom intravenous antibiotics were ineffective. METHODS: Medical records were retrospectively reviewed and neurosurgery patients with gram-negative postoperative infection meningitis/ventriculitis were enrolled in the study. Their demographics, hospital course, and outcomes were recorded in a pro forma and analyzed using Statistical Package for the Social Sciences, version 19. RESULTS: The review identified 21 patients with postneurosurgical gram-negative meningitis/ventriculitis who were treated with IVT or IT antibiotics. The most common organism was Acinetobacter species (n = 14; 66%). Amikacin was used in 7 patients, polymyxin B in 9 patients, and colistin in 5 patients. A combination of antibiotics was used in one patient. Cerebrospinal fluid sterility was achieved in all patients with no incidence of relapse. There was a single death, though that was not related to the infectious process as the patient had a massive pulmonary embolism. CONCLUSION: The findings of this study suggest that IVT and IT antibiotic therapy is a useful option in patients who are nonresponsive to standard intravenous therapy with little or no side effects. PMID- 29026663 TI - Ependymal enhancement on magnetic resonance imaging for the identification of high-grade gliomas. AB - BACKGROUND: High-grade gliomas have high infiltrative potential and spread along white matter and blood vessels. Enhancement of ependymal lining on magnetic resonance imaging (MRI) is considered as a marker of parenchymal spread of disease. In this study, we aimed to assess the sensitivity, specificity, and positive and negative predictive values of ependymal enhancement (EE) for identification of high-grade glial tumors. METHODS: We reviewed preoperative MRI scans of 94 consecutive patients surgically treated for space occupying lesions of the brain for EE. Assessment for EE was blind to the final histopathological diagnosis of the patient. An enhancement of more than 2 mm was considered positive. Pathologies of these patients were reviewed and matched to the radiological findings. Percentage and proportion of EE in glial and non-glial pathology groups was then calculated and a sensitivity and specificity analysis was performed. RESULTS: The population included 94 cases (64 males and 30 females) with population mean age 45 +/- 15.5 years. Sensitivity of EE in differentiating glioma from total number of cases was 82.61% specificity 35.42% (P value = 0.048). EE had a sensitivity of 67.39% and specificity of 64.58% (P value = 0.002) in identifying high-grade glioma within the glioma group with a positive predictive value of 64.58% (95% CI: 49.46% to 77.83%), negative predictive value of 67.39% (95% CI: 51.98% to 80.46%). CONCLUSION: EE has moderate sensitivity and specificity for high-grade gliomas. However, larger sample studies are required for further validation of this observations. PMID- 29026664 TI - Supratentorial extraparenchymal schwannoma mimicking parasagittal meningioma: A rare case report. AB - BACKGROUND: Intracranial schwannomas not related to cranial nerves are very rare. Young age, no known history of neurofibromatosis, and seizure as initial symptom have been reported to be associated with intraparenchymal schwannoma. CASE DESCRIPTION: We report a case of supratentorial parasagittal schwannoma in the right frontal region presenting with seizure episode in a 70-year-old man. Computed tomography and magnetic resonance imaging showed a right frontal solid, enhancing extra-axial lesion based on anterior and middle third junction of superior sagittal sinus. The preoperative diagnosis was right parasagittal meningioma, however, the microscopic examination of the mass showed the characteristic pattern of cellular Antony A pattern. Immunohistocemically, the tumor stained positive for S-100 protein but negatively for epithelial membrane antigen and glial fibrillary acidic protein. These findings are consistent with schwannoma. Cysts, calcification, and peritumoral edema are common in intracerebral schwannoma, which were not seen in our case. CONCLUSION: On the basis of clinical presentation and radiological appearances, schwannoma in unusual sites can easily be mistaken for meningiomas; immunochemistry plays an important role in differentiating them. Till date, to the best of our knowledge, this is the second reported case of schwannoma mimicking meningioma in parasagittal location. PMID- 29026661 TI - Tenth case of bilateral hemifacial spasm treated by microvascular decompression: Review of the pathophysiology. AB - BACKGROUND: Bilateral hemifacial spasm (BHFS) is a rare neurological syndrome whose diagnosis depends on excluding other facial dyskinesias. We present a case of BHFS along with a literature review. METHODS: A 64-year-old white, hypertense male reported involuntary left hemiface contractions in 2001 (aged 50). In 2007, right hemifacial symptoms appeared, without spasm remission during sleep. Botulinum toxin type A application produced partial temporary improvement. Left microvascular decompression (MVD) was performed in August 2013, followed by right MVD in May 2014, with excellent results. Follow-up in March 2016 showed complete cessation of spasms without medication. RESULTS: The literature confirms nine BHFS cases bilaterally treated by MVD, a definitive surgical option with minimal complications. Regarding HFS pathophysiology, ectopic firing and ephaptic transmissions originate in the root exit zone (REZ) of the facial nerve, due to neurovascular compression (NVC), orthodromically stimulate facial muscles and antidromically stimulate the facial nerve nucleus; this hyperexcitation continuously stimulates the facial muscles. These activated muscles can trigger somatosensory afferent skin nerve impulses and neuromuscular spindles from the trigeminal nerve, which, after transiting the Gasser ganglion and trigeminal nucleus, reach the somatosensory medial posterior ventral nucleus of the contralateral thalamus as well as the somatosensory cortical area of the face. Once activated, this area can stimulate the motor and supplementary motor areas (extrapyramidal and basal ganglia system), activating the motoneurons of the facial nerve nucleus and peripherally stimulating the facial muscles. CONCLUSIONS: We believe that bilateral MVD is the best approach in cases of BHFS. PMID- 29026665 TI - Lasting bilateral mydriasis after traumatic brain injury may not always be a lost case. AB - BACKGROUND: Lasting bilateral mydriasis and absence of pupillary light reflex following severe traumatic brain injury (TBI) are considered signs of irreversible brainstem damage and have been strongly associated with poor outcome. CASE DESCRIPTION: A young female patient presented with severe TBI, contusions, and diffuse brain edema. She was initially treated medically, but developed delayed secondary refractory intracranial hypertension and bilaterally dilated, non-reactive pupils for 12 h. Wide decompressive craniectomy and dural incisions were performed. The patient presented gradual improvement in her clinical condition [Glasgow Coma Scale (GCS) 13/15]. Delayed recurring infections lead to the patient's death due to sepsis after 3 months. CONCLUSION: In light of recent studies, lasting bilateral mydriasis may not always be considered a decisive factor for non-escalation of treatment, as variability among TBI patients and outcomes has been demonstrated. Wide decompressive craniectomy is viable for controlling refractory intracranial hypertension in hemodynamically stable patients. PMID- 29026666 TI - Bedside twist drill aspiration of cerebral abscess less than 2.5 cm in size: A case series and discussion. AB - BACKGROUND: Intracranial abscess remains a potentially deadly condition despite development of newer antibiotics and improved surgical methods. Many studies have evaluated the surgical indications for abscess drainage, and it has been generally accepted that intracranial abscesses greater than 2.5 cm may best be treated with surgical intervention followed by antibiotic therapy. More recently, studies have shown good results with stereotactic aspiration of abscesses to 1 cm in size. Furthermore, a recent case series in 2014 of 103 cases of bedside twist drill aspiration of cerebral abscess >2.5 cm showed a good recovery in 83.4% of cases. CASE DESCRIPTION: This case series examines the benefits of bedside twist drill aspiration of peripherally located brain abscess less than 2.5 cm in size. In our series, all patients were placed on broad-spectrum antibiotics and had negative blood and cerebrospinal fluid cultures. Our bedside biopsy resulted in de-escalation of antibiotics in 2 of the 3 patients and decreased hospital length of stay. CONCLUSION: In patients with peripherally located brain abscesses less than 2.5 cm in size, bedside twist drill drainage may be a safe and reasonable approach. Positive identification of infective pathogen allows for a decreased hospital length of stay and de-escalation of antibiotics regiment resulting in significant reduction of hospital costs and resources in 2 of the 3 patients treated. This is of benefit to the patient as well as the health system. PMID- 29026667 TI - Lumbar chronic subdural hematoma mimicking an intradural extramedullary tumor: A case report. AB - BACKGROUND: Chronic spinal subdural hematomas are extremely rare with only 28 cases reported in the literature. Nevertheless, they should be considered among the differential diagnoses for spinal intradural/extramedullary lesions. CASE REPORT: A 65-year-old male presented with progressive back pain and right S1 radiculopathy. Magnetic resonance imaging scan revealed a right-sided posterolateral intradural/extramedullary lesion at the L5-S1 level. It was hyperintense on T1 and hypointense on T2-weighted images; on the short TI inversion recovery sequence it was hyperintense. The lesion was excised through a right L5 hemilaminectomy, and the patient was neurologically intact postoperatively. Histopathology revealed a chronic subdural hematoma. CONCLUSION: Chronic spinal subdural hematoma can mimic intradural extramedullary spinal tumors even in the absence of trauma and/or coagulopathies. PMID- 29026668 TI - Fourth ventricle neurocysticercosis: Rigid endoscopic management. Description of direct transcerebellar approach. AB - BACKGROUND: Endoscopy has gained a crucial role in high specialty neurosurgery during the last decades. At present, there are well-defined flexible neuroendoscopic procedures to treat ventricular and subarachnoid space pathologies. Neurocysticercosis is recognized as a common cause of neurologic disease in developing countries and the United States. Surgical intervention, especially cerebrospinal fluid diversion, is the key for management of hydrocephalus. In 2002, a consensus suggested that ventricular forms should be treated with endoscopy as the first option. CASE DESCRIPTION: Here, we present the case of a 51-year-old right-handed male, from Estado de Mexico. Two days before admission he experienced holocraneal headache 7/10 on the visual analogue scale which was intermittent, with no response to any medication, sudden worsening of pain to 10/10, nausea, and vomit. On physical examination, he presented with 14 points in the Glasgow coma scale (M6, O4, V4), pupils were 3 mm, there was adequate light-reflex response, and bilateral papilledema. The cranial nerves did not have other pathological responses, extremities had adequate strength of 5/5, and normal reflexes (++/++) were noted. Neuroimaging studies showed dilatation of the four ventricles as well as a cystic lesion in the fourth ventricle. Surgical position was Concorde, and the approach through a suboccipital burr hole was planned preoperatively with craneometric points. A rigid Karl Storz Hopkins II(r) endoscope was inserted directly through the cerebellum and the cystic lesion was extracted entirely. CONCLUSION: This article presents a useful technique with low morbidity and mortality. Further investigation is needed, especially in our Mexico, where neuroendoscopical techniques are still in the development phase. PMID- 29026669 TI - Factors predicting long-term outcome after short-segment posterior fixation for traumatic thoracolumbar fractures. AB - BACKGROUND: The "gold standard" for instrumentation of unstable thoracolumbar fracture-dislocations is pedicle screw and rod fixation. Although traditional treatment supports long-segment posterior fixation (LSPF), more recent studies show short-segment posterior fixation (SSPF) may be effective, but incur higher failure rates. Here, we evaluated the effectiveness of SSPF in the management of unstable thoracolumbar injuries and analyzed the factors impacting long-term outcomes. METHODS: In this retrospective analysis of 91 patients with thoracolumbar fractures managed with SSPF alone, we assessed the clinical and radiological parameters at preoperative, postoperative, and follow-up intervals along with reasons for failures of SSPF. RESULTS: We analyzed 91 patients (mean age: 33.5 years; Male: Female = 50:41) with thoracolumbar fractures treated with SSPF over a median follow-up period of 30 months. SSPF failures were observed in 26 of 91 (28.6%) patients; the median time to implant failure was 17 months. On univariate analysis, statistically significant factors contributing to failure of SSPF included the presence of a burst fracture, a preoperative LSC (load-sharing classification) score >6, and translation/dislocation. With multinomial regression analysis, the only factor predictive for SSPF failure was the patients' postoperative ambulatory status. CONCLUSION: Patients with thoracolumbar facture dislocations, subjected to axial spinal loading postoperatively, should not be considered for SSPF alone. The following factors also contributed to SSPF failures: a burst fracture, a preoperative LSC score of >6, and/or presence of transverse dislocation. PMID- 29026670 TI - Rare case of conus medullaris glioblastoma multiforme in a teenager. AB - BACKGROUND: Primary intramedullary spinal glioblastoma multiforme (GBM) lesions are very rare comprising only 1.5% of all spinal cord tumors. These lesions typically result in rapid neurological deterioration and are associated with a very poor prognosis. CASE DESCRIPTION: A 16-year-old male exhibited a slowly progressive paraparesis with urinary incontinence, ultimately resulting in paraplegia. On magnetic resonance (MR), he was diagnosed with an intramedullary GBM of the spinal cord extending from the T9 level through the conus medullaris. Ten months following decompression/partial surgical resection of the intramedullary mass, he remained paraplegic. CONCLUSION: GBM of the spinal cord are rare in the pediatric age group. A 16-year-old male presented with a flaccid paraplegia attributed to an MR-documented GBM of the distal thoracic cord extending from the T9 level through the conus medullaris. Despite partial intramedullary tumor resection, 10 months postoperatively, he remained paraplegic. PMID- 29026671 TI - Bilateral caudate nucleus infarcts: A case report of a rare complication following endoscopic resection of a tuberculum sellae meningioma. AB - BACKGROUND: We present a rare complication of bilateral caudate infarcts and necrosed nasoseptal flaps after endoscopic transsphenoidal resection of tuberculum sellae meningioma. This case highlights the importance of early and accurate diagnosis and treatment of a postoperative cerebrospinal fluid (CSF) leak and associated bacterial meningitis, and reviews any existing guidelines regarding its management. CASE DESCRIPTION: A 54-year-old otherwise healthy man presented with progressive bitemporal hemianopsia. Magnetic resonance imaging of the head revealed a large, homogeneously enhancing sellar and suprasellar mass consistent with a meningioma. An endoscopic endonasal transsphenoidal approach was performed to resect the tuberculum sellae meningioma. The patient developed basal bacterial meningitis secondary to a CSF leak, requiring repair on two separate occasions. At the time of both repairs, there was evidence of necrosis of the nasoseptal flaps used for the repairs. Soon after the diagnosis of meningitis, the patient developed bilateral caudate infarcts. CONCLUSION: This report discusses the possible underlying etiologies for the bilateral caudate infarcts and necrosed flaps including bacterial meningitis with associated local vasospasm of nearby vessels resulting in infarction. This case emphasizes the importance of concise management of postendoscopic CSF leak and discusses the guidelines regarding antimicrobial therapy and the management of lumbar drains. PMID- 29026672 TI - Intraoperative navigation-guided resection of anomalous transverse processes in patients with Bertolotti's syndrome. AB - BACKGROUND: Bertolotti's syndrome is characterized by enlargement of the transverse process at the most caudal lumbar vertebra with a pseudoarticulation between the transverse process and sacral ala. Here, we describe the use of intraoperative three-dimensional image-guided navigation in the resection of anomalous transverse processes in two patients with Bertolotti's syndrome. CASE DESCRIPTIONS: Two patients diagnosed with Bertolotti's syndrome who had undergone the above-mentioned procedure were identified. The patients were 17- and 38-years old, and presented with severe, chronic low back pain that was resistant to conservative treatment. Imaging revealed lumbosacral transitional vertebrae at the level of L5-S1, which was consistent with Bertolotti's syndrome. Injections of the pseudoarticulations resulted in only temporary symptomatic relief. Thus, the patients subsequently underwent O-arm neuronavigational resection of the bony defects. Both patients experienced immediate pain resolution (documented on the postoperative notes) and remained asymptomatic 1 year later. CONCLUSION: Intraoperative three-dimensional imaging and navigation guidance facilitated the resection of anomalous transverse processes in two patients with Bertolotti's syndrome. Excellent outcomes were achieved in both patients. PMID- 29026673 TI - Endoscopic management of a cavernous malformation on the floor of third ventricle and aqueduct of Sylvius: Technical case report and review of the literature. AB - BACKGROUND: Intraventricular cavernous malformations are unusual intracranial vascular malformations; their deep anatomical location complicates their surgical management. Microsurgical approaches are the gold standard approaches for the resection of ventricular lesions, however, they imply considerable neurovascular risks. CASE DESCRIPTION: A 51-year-old patient presented with acute headache, diplopia, vertigo, blurred vision, and a depressed level of consciousness. A ventricular hemorrhage was treated with a ventriculostomy and the patient was discharged without hydrocephalus. After 11 days, he developed ataxia, diplopia, and a depressed level of consciousness. The patient was diagnosed with hydrocephalus secondary to the previous third ventricle hemorrhage. An endoscopic exploration using a 30 degrees rigid ventricular endoscope was performed; after the third ventriculostomy, an intraventricular cavernous malformation located on the floor of the third ventricle and the aqueduct of Sylvius was resected. CONCLUSIONS: Three days after the surgery, magnetic resonance imaging demonstrated a gross total resection and adequate third ventriculostomy flow. One year after the surgery, the patient was asymptomatic. Neuroendoscopy has evolved towards minimally invasiveness, and in selected cases is an equally effective surgical approach to ventricular lesions. It provides minimal cerebral cortex disruption and vascular manipulation. PMID- 29026674 TI - Chronic headache caused by a titanium fixation plate: Report of two cases. AB - BACKGROUND: We report two patients with chronic postcraniotomy headache who showed rapid alleviation of pain after removal of titanium miniplates. CASE DESCRIPTION: (Case 1) A 26-year-old woman underwent a right frontal craniotomy and excision of the entire cerebral cavernous malformation. Eleven years later, she developed headache. The titanium plate was removed and the patient presented complete amelioration of headache. (Case 2) A 50-year-old man underwent an aneurysm clipping via the lateral supraorbital approach of the left side. One year later, he complained about throbbing pain. Removing the titanium plate led to complete relief of the headache. CONCLUSION: Titanium miniplate fixation may irritate the deep division of the supraorbital nerve and may cause a chronic headache. Here, we propound the idea that, postcraniotomy, titanium miniplates should not be placed above the temporal fusion line. PMID- 29026675 TI - Advantages of using a detachable-tip microcatheter and liquid embolic agents in the preoperative embolization of a recurrent cerebellar hemangioblastoma: A case report. AB - BACKGROUND: The preferred treatment for intracranial hemangioblastomas is surgical resection with or without preoperative embolization, however, embolization remains controversial due to risks such as distal tip entrapment, vascular injury during navigation, and embolic agent migration. CASE DESCRIPTION: A 54-year-old woman was admitted for surgical resection and preoperative embolization of a cerebellar hemangioblastoma. Although experience using Onyx with detachable and nondetachable tip microcatheters has been well reported in a variety of clinical circumstances, we describe the first case of a presurgical embolization of an intra-axial tumor using a second-generation detachable-tip microcatheter and a nonadhesive liquid embolic agent. Following the procedure, a nearly complete angiographic obliteration was achieved, as well as a successful subsequent surgical resection. CONCLUSION: Preoperative embolization with detachable-tip microcatheters and liquid embolic agents should be taken into consideration when assessing patients with hemangioblastomas of the posterior fossa due to the reduced risks of cardiac arrest, hemorrhage, and death. PMID- 29026676 TI - Spinal epidural abscess: Report on 27 cases. AB - BACKGROUND: Spinal epidural abscess, although an uncommon disease, often correlates with a high morbidity owing to significant delay in diagnosis. METHODS: In a prospective 5-year study, the clinical and magnetic resonance (MR) findings, treatment protocols, microbiology, and neurological outcomes were analyzed for 27 patients with spinal epidural abscess. RESULTS: Patients were typically middle-aged with underlying diabetes and presented with lumbar abscesses. Those undergoing surgical intervention >36 h after the onset of symptoms had poor neurological outcomes. CONCLUSION: Early recognition and timely evacuation of spinal abscesses minimized neurological morbidity and potential mortality. PMID- 29026677 TI - Bedside Ultrasound in the Diagnosis and Treatment of Children with Respiratory Difficulty Following Cardiac Surgery. AB - Many children frequently fail extubation or require a prolonged period of positive pressure ventilation support after cardiac surgery. Pediatric cardiac Intensive Care Unit (PCICU) ultrasound (US) stands as a simple, basic bedside tool that can be performed by trained intensivists for the diagnosis with immediate implication on therapeutic decisions in multiple scenarios that physicians may face in PCICU. Bedside US is widely available, convenient, and inexpensive. This educational article based mainly on our own experience is highlighting the role of US in detecting the most common causes of respiratory weaning difficulties and extubation failure in postoperative cardiac children through proposed illustration and algorithm. PMID- 29026678 TI - Statistical model for OCT image denoising. AB - Optical coherence tomography (OCT) is a non-invasive technique with a large array of applications in clinical imaging and biological tissue visualization. However, the presence of speckle noise affects the analysis of OCT images and their diagnostic utility. In this article, we introduce a new OCT denoising algorithm. The proposed method is founded on a numerical optimization framework based on maximum-a-posteriori estimate of the noise-free OCT image. It combines a novel speckle noise model, derived from local statistics of empirical spectral domain OCT (SD-OCT) data, with a Huber variant of total variation regularization for edge preservation. The proposed approach exhibits satisfying results in terms of speckle noise reduction as well as edge preservation, at reduced computational cost. PMID- 29026679 TI - sideSPIM - selective plane illumination based on a conventional inverted microscope. AB - Previously described selective plane illumination microscopy techniques typically offset ease of use and sample handling for maximum imaging performance or vice versa. Also, to reduce cost and complexity while maximizing flexibility, it is highly desirable to implement light sheet microscopy such that it can be added to a standard research microscope instead of setting up a dedicated system. We devised a new approach termed sideSPIM that provides uncompromised imaging performance and easy sample handling while, at the same time, offering new applications of plane illumination towards fluidics and high throughput 3D imaging of multiple specimen. Based on an inverted epifluorescence microscope, all of the previous functionality is maintained and modifications to the existing system are kept to a minimum. At the same time, our implementation is able to take full advantage of the speed of the employed sCMOS camera and piezo stage to record data at rates of up to 5 stacks/s. Additionally, sample handling is compatible with established methods and switching magnification to change the field of view from single cells to whole organisms does not require labor intensive adjustments of the system. PMID- 29026680 TI - All-optical photoacoustic projection imaging. AB - We introduce all-optical photoacoustic projection imaging. An array of fiber optic interferometers is used to measure photoacoustic signals. The obtained images represent the projection of the three-dimensional spatial light absorbance within a sample onto a two-dimensional plane. We assess the performance of the system by phantom measurements and show that the fiber-optic detectors achieve a noise-equivalent pressure of 24 Pascal at a 10 MHz bandwidth. Furthermore, we demonstrate the ability to acquire high-resolution projection images of large volumes within a short period of time. PMID- 29026681 TI - Resolving adjacent nanophosphors of different concentrations by excitation-based cone-beam X-ray luminescence tomography. AB - Cone-beam X-ray luminescence computed tomography (CB-XLCT) has been proposed as a new molecular imaging modality recently. It can obtain both anatomical and functional tomographic images of an object efficiently, with the excitation of nanophosphors in vivo or in vitro by cone-beam X-rays. However, the ill-posedness of the CB-XLCT inverse problem degrades the image quality and makes it difficult to resolve adjacent luminescent targets with different concentrations, which is essential in the monitoring of nanoparticle metabolism and drug delivery. To address this problem, a multi-voltage excitation imaging scheme combined with principal component analysis is proposed in this study. Imaging experiments performed on physical phantoms by a custom-made CB-XLCT system demonstrate that two adjacent targets, with different concentrations and an edge-to-edge distance of 0 mm, can be effectively resolved. PMID- 29026682 TI - Wavelength-dependent optical properties of melanosomes in retinal pigmented epithelium and their changes with melanin bleaching: a numerical study. AB - In this paper, we present the first numerical study on full metrics of wavelength dependent optical properties of melanosomes in retinal pigmented epithelial (RPE) cells. T-matrix method was used to simulate the spheroidal shapes of mature melanosomes, and the complex refractive index was calculated by a subtractive Kramers-Kronig relation for melanin. The validity of the method was first confirmed by Mie theory, and corroborated by a comparison between visible light and near infrared (NIR) optical coherence tomography (OCT) on human retinal imaging. We also studied the changes of melanosome optical properties due to melanin bleaching by numerically reducing the absorption of melanin. This study implies a unique approach to detect melanin changes specifically in RPE by a spectroscopic contrast of optical coherence tomography. PMID- 29026683 TI - High sensitivity optical measurement of skin gloss. AB - We demonstrate a low-cost optical method for measuring the gloss properties with improved sensitivity in the low gloss regime, relevant for skin gloss properties. The gloss estimation method is based on, on the one hand, the slope of the intensity gradient in the transition regime between specular and diffuse reflection and on the other on the sum over the intensities of pixels above threshold, derived from a camera image obtained using unpolarized white light illumination. We demonstrate the improved sensitivity of the two proposed methods using Monte Carlo simulations and experiments performed on ISO gloss calibration standards with an optical prototype. The performance and linearity of the method was compared with different professional gloss measurement devices based on the ratio of specular to diffuse intensity. We demonstrate the feasibility for in vivo skin gloss measurements by quantifying the temporal evolution of skin gloss after application of standard paraffin cream bases on skin. The presented method opens new possibilities in the fields of cosmetology and dermatopharmacology for measuring the skin gloss and resorption kinetics and the pharmacodynamics of various external agents. PMID- 29026684 TI - Combined multi-distance frequency domain and diffuse correlation spectroscopy system with simultaneous data acquisition and real-time analysis. AB - Frequency domain near infrared spectroscopy (FD-NIRS) and diffuse correlation spectroscopy (DCS) have emerged as synergistic techniques for the non-invasive assessment of tissue health. Combining FD-NIRS oximetry with DCS measures of blood flow, the tissue oxygen metabolic rate can be quantified, a parameter more closely linked to underlying physiology and pathology than either NIRS or DCS estimates alone. Here we describe the first commercially available integrated instrument, called the "MetaOx", designed to enable simultaneous FD-NIRS and DCS measurements at rates of 10 + Hz, and offering real-time data evaluation. We show simultaneously acquired characterization data demonstrating performance equivalent to individual devices and sample in vivo measurements of pulsation resolved blood flow, forearm occlusion hemodynamic changes and muscle oxygen metabolic rate monitoring during stationary bike exercise. PMID- 29026685 TI - Pharmacokinetics of carfilzomib in patients with advanced malignancies and varying degrees of hepatic impairment: an open-label, single-arm, phase 1 study. AB - BACKGROUND: Carfilzomib is approved in the United States and Europe for treatment of relapsed or refractory multiple myeloma (MM). This study evaluated pharmacokinetics (PK) and safety of carfilzomib in patients with relapsed or progressive advanced malignancies and varying degrees of impaired hepatic function. METHODS: Patients with normal hepatic function (normal) or hepatic impairment (mild, moderate, or severe) received carfilzomib infusion in 28-day cycles. The primary objective was to assess the influence of hepatic impairment on carfilzomib PK following 27 and 56 mg/m2 doses. RESULTS: The majority of patients enrolled in this study had solid tumors (n = 44) vs. MM (n = 2) since patients with multiple myeloma do not tend to have severe hepatic impairment in the same way as patients with solid tumors. A total of 11 normal and 17 mild, 14 moderate, and 4 severe hepatic impairment patients were enrolled. Compared with patients with normal hepatic function, patients with mild and moderate hepatic impairment had 44 and 26% higher carfilzomib AUC0-last, respectively (27 mg/m2 dose); increases at the 56 mg/m2 dose were 45 and 21%, respectively. Considerable PK variability (% coefficient of variation in AUC <=100%) was discerned and no consistent trend of increasing exposure resulting from increasing hepatic impairment severity (moderate vs. mild) was seen. The observed adverse event (AE) profile in patients of mostly solid tumors was consistent with the known safety profile of carfilzomib, with the exception of an increased frequency of AEs consistent with hepatic function abnormalities. CONCLUSIONS: In this population of primarily advanced solid tumor patients, patients with mild and moderate hepatic impairment had approximately 20-50% higher carfilzomib AUC vs. normal hepatic function patients. These increases are unlikely to be clinically significant, in light of the intrinsic PK variability and exposure-response relationship of carfilzomib. Trial registration http://clinicaltrials.gov NCT01949545; date of registration: September 6, 2013. PMID- 29026687 TI - Ascendobifemoral Bypass for the Treatment of a Thoracic Endograft Infection. AB - Background Endograft infections (EIs) are rare complications after endovascular procedures in the thoracic and abdominal aortas. The challenging treatment encloses antibiotic and surgical therapies. Case Description A 74-year-old male patient developed an EI after an endovascular procedure (thoracic endovascular aortic repair [TEVAR]). Despite a long-term oral antibiotic therapy, the clinical symptoms showed no falling trend. Because of the expanded infection from above the celiac trunk up to the aortic arch, we decided to remove the infected endograft and to implant an extra-anatomic ascendobifemoral bypass. Conclusion The implantation of an ascendobifemoral bypass was a successful treatment option for EIs after TEVAR. PMID- 29026686 TI - Pain Prediction From ECG in Vascular Surgery. AB - Varicose vein surgeries are routine outpatient procedures, which are often performed under local anaesthesia. The use of local anaesthesia both minimises the risk to patients and is cost effective, however, a number of patients still experience pain during surgery. Surgical teams must therefore decide to administer either a general or local anaesthetic based on their subjective qualitative assessment of patient anxiety and sensitivity to pain, without any means to objectively validate their decision. To this end, we develop a 3-D polynomial surface fit, of physiological metrics and numerical pain ratings from patients, in order to model the link between the modulation of cardiovascular responses and pain in varicose vein surgeries. Spectral and structural complexity features found in heart rate variability signals, recorded immediately prior to 17 varicose vein surgeries, are used as pain metrics. The so obtained pain prediction model is validated through a leave-one-out validation, and achieved a Kappa coefficient of 0.72 (substantial agreement) and an area below a receiver operating characteristic curve of 0.97 (almost perfect accuracy). This proof-of concept study conclusively demonstrates the feasibility of the accurate classification of pain sensitivity, and introduces a mathematical model to aid clinicians in the objective administration of the safest and most cost-effective anaesthetic to individual patients. PMID- 29026689 TI - Accurate diagnosis of prenatal cleft lip/palate by understanding the embryology. AB - Cleft lip with or without cleft palate (CP) is one of the most common congenital malformations. Ultrasonographers involved in the routine 20-wk ultrasound screening could encounter these malformations. The face and palate develop in a very characteristic way. For ultrasonographers involved in screening these patients it is crucial to have a thorough understanding of the embryology of the face. This could help them to make a more accurate diagnosis and save time during the ultrasound. Subsequently, the current postnatal classification will be discussed to facilitate the communication with the CP teams. PMID- 29026690 TI - Pancreatic imaging: Current status of clinical practices and small animal studies. AB - Different causative factors acting on the pancreas can result in diseases such as pancreatitis, diabetes and pancreatic tumors. The high incidence and mortality of pancreatic diseases have placed diagnostic imaging in a crucial position in daily clinical practice. In this mini-review article different pancreatic imaging techniques are discussed, from the standard clinical imaging modalities and state of the art clinical magnetic resonance imaging techniques to current situations in pre-clinical pancreatic imaging studies. In particular, the challenges of pre clinical rodent pancreatic imaging are addressed, with both the image acquisition techniques and the post-processing methods for rodent pancreatic imaging elaborated. PMID- 29026691 TI - Accuracy of crescent sign on ocular ultrasound in diagnosing papilledema. AB - AIM: To study the usefulness of orbital ultrasonography in the diagnosis of papilledema. METHODS: Fifty patients who were referred to the neurophthalmology clinic and clinically suspected to have papilledema were selected. Thorough, clinical examination with slitlamp biomicroscopy and visual acuity assessment was done. These patients underwent ultrasonography to demonstrate the crescent sign. The patients were further evaluated with the neurologist and magnetic resonance imaging (MRI) thus confirming the diagnosis of papilledema. The results of our ultrasonographic evaluation were correlated with final diagnosis after thorough clinical evaluation, imaging and the neurologist's opinion. RESULTS: Out of 50 patients diagnosed having papilledema on MRI, 46 (92%) showed crescent sign on B scan ultrasonography. Headache was most common presenting complaint in 47 (94%) and idiopathic intracranial hypertension was most common underlying cause of papilledema in 30 (60%) cases. CONCLUSION: "Crescent sign" seen on ultrasonography is a sensitive tool for diagnosis of papilledema. It is cost effective, less cumbersome and effective tool to differentiate between papilledema and pseudo papilledema before subjecting the patients to costly investigations like MRI. A positive crescent sign should always be followed by MRI to find out the cause of papilledema. PMID- 29026692 TI - A Systematic Review of the Consequences of Early Extraction of First Permanent First Molar in Different Mixed Dentition Stages. AB - AIMS AND OBJECTIVES: The aim of this study was to consider the available evidence regarding early extraction of permanent first molars (PFMs) in different mixed dentition stages that affect the integrity of occlusion and the implications for treatment planning. MATERIALS AND METHODS: Electronic database, including PubMed and Science Direct, searches were conducted for available evidence. Key terms used in the search were "extraction," " first permanent molar," and "mixed dentition." RESULTS: The initial search identified 56 studies to be related to the review. Although a significant number of published articles had dealt with early extraction of PFM, only three studies had fulfilled the final selection criteria to be considered for this systematic review. CONCLUSION: Future active appliance treatment is important after extraction of PFMs with poor prognosis. If such therapy is not needed, consideration should be given to extraction at the ideal developmental age to achieve spontaneous space closure. Each case should be assessed for the need of balancing or compensating extractions to preserve the dental midline and prevent overeruption. PMID- 29026693 TI - Platelet-rich Fibrin: A Paradigm in Periodontal Therapy - A Systematic Review. AB - Periodontal tissue regeneration has always been a challenge for the periodontists owing to its structural complexity. Although with tissue engineering as a growing multidisciplinary field, this aim has partially been fulfilled. In recent years, platelet-rich fibrin (PRF) has gained wide attention for its utilization as a biocompatible regenerative material not only in dental but also in medical fields. The following systematic review has gathered all the currently available in vitro, animal, and clinical studies utilizing PubMed electronic database from January 2006 to August 2016 highlighting PRF for soft and hard tissue regeneration and/or wound healing. Although results are encouraging but require further validation from clinical studies to justify the potential role of PRF in periodontal regeneration so that this relatively inexpensive autologous biomaterial can be utilized at a wider scale. PMID- 29026694 TI - A Systematic Review and Meta-analysis of School Children's Caries Studies in Gulf Cooperation Council States. AB - OBJECTIVES: The aim of the present study was to evaluate the prevalence and severity of dental caries school children in the Gulf Cooperation Council (GCC) area, to help the development of systematic approaches for preventive oral care programs in the GCC states and to provide sound information for oral health promotion and public health care. MATERIALS AND METHODS: A comprehensive search to identify both published and unpublished articles concerning relevant studies of dental caries in children aged 6-16 years for their permanent teeth published from 1992 to 2016 with no language and time limit was performed. The search strategies employed electronic databases and incorporated both dental subject headings and free-text term. RESULTS: The overall mean decayed, missing and filled teeth in the permanent teeth was 2.57, and the prevalence was 64.7% in the GCC area. CONCLUSIONS: Most of the studies were conducted in the Kingdom of Saudi Arabia. The results may not be a true reflection, and other countries in GCC are urged to study the prevalence and severity of caries in their children population. PMID- 29026695 TI - Comparison Between Antibacterial Effect of Chlorhexidine 0.2% and Different Concentrations of Cyperus rotundus Extract: An In vitro Study. AB - AIMS AND OBJECTIVES: Modern methods of caries prevention concentrated on natural ingredients usage such as probiotics and polyphenols that are safer for young children with Streptococcus mutans inhibitory properties. The purpose of this study was to compare antibacterial effects of different concentration of Cyperus rotundus extract and chlorhexidine (CHX) 0.2% mouthwash on S. mutans and Lactobacillus acidophilus. MATERIALS AND METHODS: In this in vitro study, the antibacterial effectiveness of the C. rotundus extract and CHX was compared with minimum inhibitory concentration (MIC) test in tube, minimum bactericidal concentration (MBC) test in solid medium, and disc diffusion for measurement of inhibition zone. Data were analyzed using one-way ANOVA, one sample t-test, and independent sample t-test statistical methods by SPSS. 24 software (SPSS Inc., Chicago, USA). RESULTS: MIC and MBC values of the C. rotundus extract were obtained 225 and 450 mg/ml, respectively, for S. mutans and 108 and 225 mg/ml for L. acidophilus, which are more than CHX (0.5, 1 res.). The inhibition zone increased in a dose-dependent manner but lower than CHX. CONCLUSION: The C. rotundus extract had antibacterial effects (bactericide and bacteriostatic) on S. mutans and L. acidophillus. Although this effect was lower than CHX. With regard to adverse effect of CHX, this extract can be a potential antibacterial agent. PMID- 29026688 TI - Establishing the presence or absence of chronic kidney disease: Uses and limitations of formulas estimating the glomerular filtration rate. AB - The development of formulas estimating glomerular filtration rate (eGFR) from serum creatinine and cystatin C and accounting for certain variables affecting the production rate of these biomarkers, including ethnicity, gender and age, has led to the current scheme of diagnosing and staging chronic kidney disease (CKD), which is based on eGFR values and albuminuria. This scheme has been applied extensively in various populations and has led to the current estimates of prevalence of CKD. In addition, this scheme is applied in clinical studies evaluating the risks of CKD and the efficacy of various interventions directed towards improving its course. Disagreements between creatinine-based and cystatin based eGFR values and between eGFR values and measured GFR have been reported in various cohorts. These disagreements are the consequence of variations in the rate of production and in factors, other than GFR, affecting the rate of removal of creatinine and cystatin C. The disagreements create limitations for all eGFR formulas developed so far. The main limitations are low sensitivity in detecting early CKD in several subjects, e.g., those with hyperfiltration, and poor prediction of the course of CKD. Research efforts in CKD are currently directed towards identification of biomarkers that are better indices of GFR than the current biomarkers and, particularly, biomarkers of early renal tissue injury. PMID- 29026697 TI - Effect of Fluoride Concentration in Drinking Water on Intelligence Quotient of 12 14-Year-Old Children in Mathura District: A Cross-Sectional Study. AB - AIMS: The aim was to assess and correlate the influence of the concentration of fluoride in ingested water on the intelligence quotient (IQ) of 12-14-year-old youngsters in Mathura district. MATERIALS AND METHODS: A total of 219 children were selected, 75 from low F area, 75 medium F area, and 69 from high F area. The concentration of fluoride in the routinely ingested water was estimated using "Ion Selective Electrode method"; then, Raven's Test was utilized to estimate the IQ of the study participants. Independent t-test, Tukey's post hoc, Chi-square an analysis of variance tests were used to associate the mean and proportion IQ scores in high-, medium-, and low-fluoride regions along with inter-group significant differences (P <= 0.05). RESULTS: The comparison of IQ score showed that 35 (46.7%) participants from the high fluoride and 10 (13.3%) participants from the medium-fluoride areas had below average IQ. Further, it was noted that the lowest mean marks were obtained by the children in the high-fluoride region (13.9467) followed by those in medium (18.9467) and uppermost in least noted fluoride area (38.6087). However, gender-based intergroup comparison did not produce a significant relation with fluoride (P >= 0.05). CONCLUSION: Concentration of Fluoride in the ingested water was significantly associated with the IQ of children. It has also coined the proportional variability in mental output in accordance to the ingested fluoride level. As two sides of a coin, fluoride cannot be utterly blamed for a lower intelligence in a population; it puts forward a fact that intelligence is a multifactorial variable with a strategic role played by genetics and nutrition to develop cognitive and psychosomatic activities in an individual. PMID- 29026696 TI - The Effect of Chlorhexidine Mixed with Mineral Trioxide Aggregate on Bacterial Leakage of Apical Plug in Simulated Immature Teeth Using Human Fresh Saliva. AB - OBJECTIVES: Apexification is a challenging treatment in necrotic open apices teeth and bacterial leakage is the main reason for the treatment failure. The aim of this study is to compare the effect of mixing mineral trioxide aggregate (MTA) with chlorhexidine (CHX) on microbial leakage in apexification treatment of simulated immature teeth. MATERIALS AND METHODS: In this experimental study, 44 intact central incisors were selected based on inclusion criteria. The coronal and 2 mm of apical part of the specimens were removed till all root segments were 12 mm long. The apical parts of the teeth were prepared using Profile #40/0.06 (Dentsply Maillefer, Ballaigues, Switzerland) in the apical to coronal direction to simulate open apices. The specimens were separated into experimental groups (n = 40) and control groups (n = 4). Group 1 delivered a 5 mm apical plug by MTA/H2O and group 2 delivered an apical plug by MTA/CHX 0.12%. The positive control group had no apical barrier; on the other hand, the negative control group had an apical barrier and two layers of nail varnish on entire root surface. The microbial leakage assessment was done by a dual-chamber apparatus using fresh human saliva after 10-week follow-up. The turbidity of the lower chamber containing the Brain Heart Infusion (BHI) solution was analyzed based on the McFarland (0.5) standard which utilizes spectrophotometry results. Data analyses were done using Chi-square, Kaplan-Meier, and log-rank tests. RESULTS: MTA/CHX group had lower microbial leakage percentage (P = 0.001) and longer time of leakage (P = 0.002) in compared with MTA/H2O group and the difference was statistically meaningful. CONCLUSION: Based on the results of this study, MTA/CHX mixture can reduce the amount of bacterial leakage. PMID- 29026698 TI - Evaluation of the Impact of Oral Health Education on Oral Hygiene Knowledge and Plaque Control of School-going Children in the City of Amritsar. AB - AIMS AND OBJECTIVES: The present study aims to evaluate the impact of oral health education on oral hygiene knowledge and plaque control of school-going children in the city of Amritsar. MATERIALS AND METHODS: The study was carried out for 6 weeks and included four groups of schoolchildren of 10-12 years of age. Children were randomly selected and assigned into one of the four groups - Group I (verbal communication), Group II (verbal communication and self-educational pamphlets), Group III (audiovisual aids and verbal communication), and Group IV (control group). Oral health education was assessed by getting a questionnaire filled by children and plaque scores was recorded using Silness and Loe plaque index before and after the study. The data were then compared and analyzed using SPSS 16 software manufactured by IBM. RESULTS: Differences in knowledge gain after the dental health education were statistically significant between all the groups, except between Group II and Group III in which the difference was not found to be significant. Group III showed the highest decrease in plaque score followed by Group II. There was a significant difference in reduction in plaque scores between all the groups, except between the Groups II and III. CONCLUSION: Both methods, i.e., pamphlets and audiovisual aids when used along with oral lectures, are equally effective in improving the knowledge and plaque scores in children. PMID- 29026699 TI - Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values. AB - AIMS AND OBJECTIVES: Biologic width (BW) as defined by Cohen is the part of the supracrestal gingival tissues that occupy the space between the base of the gingival crevice and the alveolar crest; it includes the junctional epithelium and the connective tissue element. Interactions between dental crowns and the marginal periodontal tissues analyzed in many review papers concluded that the recognition of the BW, in terms of crown margin placement, is beneficial for periodontal health. Therefore, knowledge of the dimensions of the sum of the junctional epithelium and connective tissue attachment as well as the sulcus depth (SD) is of clinical relevance. The aim of the study is to compare the average SD and BW clinically measured around teeth with the standard application of a mean value of 0.69 mm and 2.04 mm, respectively, found by Gargiulo et al.in a histological study on cadavers. MATERIALS AND METHODS: Forty-two healthy patients with age ranging from 20 to 50 years presented to the Multidisciplinary Department at the Lebanese University. A total of 504 tooth sites of 126 teeth were selected and measured by two periodontists. All measurements were done on teeth requiring infiltration anesthesia for surgical, restorative, or endodontic procedures on neighboring tooth/teeth, which eliminate any ethical concerns. The SD and the distance from gingival margin to bone crest at four sites per tooth; mesial, midbuccal, distal, and midlingual/palatal were measured. Clinical, BW was calculated by subtracting SD from the distance between gingival margin to bone crest. STATISTICAL ANALYSIS: Friedman's ANOVA test, independent samples t-tests, and one-sample t-tests were applied. The IBM(r) SPSS(r) statistics 20.0 statistical package was used to carry out all statistical analyses. RESULTS: The BW is statistically significantly lower than the value stated by Gargiulo et al. (2.04 mm) with a mean value of 1.13 mm, whereas the SD is statistically significantly greater than the value stated by Gargiulo et al. (0.69 mm) with a mean value of 1.96 mm. CONCLUSION: It can be concluded that there is a need to create a patient/site-specific distance from the proposed margin of the restoration to the bone crest when restoring subgingivally fractured or carious teeth. This leads to more stable and healthy tissues when performing crown lengthening procedures. Therefore, using the term clinical, BW is more reliable and it should be used to reestablish stability and integrity of periodontal tissues around restored teeth. PMID- 29026700 TI - Relationship Between the Remaining Dentin Thickness and Coronal Pulp Status of Decayed Primary Molars. AB - AIMS AND OBJECTIVES: The aim of this study was to assess the correlation between the remaining dentin thickness (RDT) in deep decayed primary molars and the inflammatory status and bacterial composition of the corresponding coronal pulp. We hypothesized that RDT could be used as a reference for clinicians in assigning the indication for pulpotomy. MATERIALS AND METHODS: Pulpotomies were conducted on the cameral pulp of 48 primary molars. Microorganisms, such as Lactobacillus sp., Streptococcus sp., and Prevotella sp., were identified and quantified and levels of tumor necrosis factor-alpha (TNF-alpha) and interlukin-6 (IL-6) were assessed. The correlation between the pre-operative RDT based on radiographic images and inflammatory-microbial profiles in vitro was evaluated using Spearman's rho correlation coefficient. All data analysis was performed using a statistical software program (SPSS 20.0, SPSS Inc., Chicago, IL, USA). RESULTS: Immunological and microbiological studies revealed elevated levels of TNF-alpha and IL-6 cytokines, and Lactobacillus sp., Streptococcus sp. and Prevotella sp. in the cameral pulp with an RDT measuring up to 1.1 mm. No significant relationship could be established between RDT, inflammatory status and microbial content of the pulps. CONCLUSION: The RDT remains a key clinical factor that needs to be assessed when establishing the indication for pulpotomy. Additional parameters that can improve this therapy should be investigated in the future. PMID- 29026701 TI - How Much Do Italian Patients in Supportive Periodontal Therapy Know about the Role of Smoking in Oral Health and What is Their Lifestyle? AB - OBJECTIVE: The level of awareness of patients receiving supportive periodontal therapy (SPT) concerning the role of smoking as a risk factor for oral health was investigated. MATERIALS AND METHODS: A questionnaire was administered to 158 patients previously treated for periodontitis in four periodontally oriented private dental offices in Rome. The generalized linear model was used to test the simultaneous effect of questions posed to all patients. Fisher's exact test was used to verify significant associations among qualitative variables. RESULTS: Only 53.79% of the total sample referred having been informed by the dentist/hygienist about smoking as an oral health risk factor. About 40% of patients did not know that oral cancer exists and only 36.08% of them reported being informed about it by their own dentist/hygienist. Females are significantly less frequent among ex-smokers than among smokers. Nonsmokers were on periodontal supportive therapy for a longer period than smokers. Patients who started smoking later found harder to quit smoking than those who started earlier. CONCLUSION: Awareness of patients in SPT about health risks related to smoking does not assume a change in their harmful behavior. Among oral health professionals, there is not yet a widespread awareness of the importance of their role in increasing patient's motivation to quit. PMID- 29026702 TI - Apical Extrusion of Intracanal Bacteria with Single File and Multifile Rotary Instrumentation Systems. AB - AIMS AND OBJECTIVES: Instrumentation techniques may cause extrusion of microorganisms and their products into the periapical region resulting inflammation and treatment failure. The aim of this ex vivo study was comparing the apical bacterial extrusion in canals prepared with single file versus multiple file rotary systems. MATERIALS AND METHODS: Ninety-two human single rooted mandibular first premolars were used. Endodontic access cavities were prepared, and root canals were contaminated with an Enterococcus faecalis (E. faecalis) suspension. The samples were incubated at 37 degrees C for 30 days; the contaminated teeth were divided into four groups of 20 specimens each (1: Reciproc, 2: Mtwo, 3: Neoniti A1, 4: Safesider). Six teeth were not infected and each were prepared with one of the above instruments were considered as negative and six teeth which had been previously infected, were used as positive control groups. Extruded bacteria from the apical foramen during instrumentation were collected into vials containing 0.9% NaCl. The microbial samples were taken from the vials and incubated in brain heart agar medium for 24 h. The resulting bacterial titer, in colony-forming units per mL, was determined. The data entered into SPSS 18 software and were analyzed by Kruskal-Wallis and Mann-Whitney U tests at 0.05 significance level. RESULTS: Mtwo multifile system showed significantly less bacterial extrusion than Safesider (P = 0.015) and Neoniti A1 (P = 0.042) but did not show significant difference with Reciproc system (P = 0.25). CONCLUSIONS: All instrumentation systems extruded bacteria beyond the apical foramen. However, this study showed that Mtwo multifile rotary system extruded fewer bacteria. PMID- 29026703 TI - Endodontic Management of a Maxillary First Molar with Seven Root Canal Systems Evaluated Using Cone-Beam Computed Tomography Scanning. AB - Permanent maxillary first molar morphology has been studied widely. Usually, it has three roots with three canals and the frequent deviation being incidence of a second mesiobuccal canal, thus showing a multifaceted root canal anatomy. Other variations comprise four and five roots and abnormal root canal morphology within individual roots. Many case reports with five and six root canals or a C-shaped canal configuration have been reported in the past. This varying number of root canals poses a challenge for endodontist in detecting and treating by root canal treatment. This problem can be avoided using techniques such as using the dental operating microscope and cone-beam computed tomography (CBCT). We report a change in canal morphology case of maxillary first molar having seven root canals, its evaluation, and management using latest equipment such as CBCT. PMID- 29026704 TI - Therapeutic Inhibitors against Mutated BRAF and MEK for the Treatment of Metastatic Melanoma. AB - Melanoma is one of the most aggressive cancers in the world and is responsible for the majority of skin cancer deaths. Recent advances in the field of immunotherapy using active, adoptive, and antigen-specific therapeutic approaches, have generated the expectation that these technologies have the potential to improve the treatment of advanced malignancies, including melanoma. Treatment options for metastatic melanoma patients have been dramatically improved by the FDA approval of new therapeutic agents including vemurafenib, dabrafenib, and sorafenib. These kinase inhibitors have the potential to work in tandem with MEK, PI3K/AKT, and mTOR to inhibit the activity of melanoma inducing BRAF mutations. This review summarizes the effects of the new therapeutic agents against melanoma and the underlying biology of these BRAF inhibitors. PMID- 29026705 TI - Role of Recepteur D'origine Nantais on Gastric Cancer Development and Progression. AB - Recepteur d'origine nantais (RON) is a receptor tyrosine kinase belonging to the subfamily of which c-MET is the prototype. Large epidemiologic studies have confirmed the strong association between RON and gastric cancer development. Constitutive activation of RON signaling directly correlates with tumorigenic phenotypes of gastric cancer and a poor survival rate in advanced gastric cancer patients. In this review, we focus on recent evidence of the aberrant expression and activation of RON in gastric cancer tumors and provide insights into the mechanism of RON signaling associated with gastric cancer progression and metastasis. Current therapeutics against RON in gastric cancer are summarized. PMID- 29026706 TI - Development of Novel Drug-Eluting Stents for Acute Myocardial Infarction. AB - Delayed arterial healing at culprit sites after drug-eluting stent (DES) placement for acute myocardial infarction (AMI) is associated with increased risk of late stent thrombosis. The Korea Acute Myocardial Infarction Registry was established in commemoration of the 50th anniversary of Korea Circulation Society. Between November 2005 and December 2016, more than 62,000 patients were registered from 50 primary percutaneous coronary intervention (PCI) centers in Korea. DES in AMI may be safe and effective, however, there is concern about increased stent thrombosis after DES implantation in AMI patients, requiring longer-term dual anti-platelet therapy to reduce the risk of late stent thrombosis. Device innovation is needed to overcome issues such as stent thrombosis and restenosis by using new coating materials with biocompatible polymers, different coating methods using non-polymer techniques, bioabsorbable stents and pro-healing stents. In this review article, we describe the current usage of DES in AMI in Korea and introduce novel DES uses in development for patients with AMI. We have developed many types of DES in our research laboratory. Abciximab-coated stents inhibited platelet thrombi and restenosis. Furthermore, anti-oxidants (carvedilol, probucol and alpha-lipoic acid) were used for stent coating. Currently we are developing novel DESs using polymer-free and natural binding techniques, peptide coating stents, gene-and-drug delivery, bioabsorbable stents using 3D printing, endothelial progenitor cell capturing stents to promote reendothelialization and reduce stent thrombosis. New DESs in development may be safe and effective in preventing late stent thrombosis and restenosis in patients with AMI. PMID- 29026707 TI - NADPH Oxidase Mediates beta-Amyloid Peptide-Induced Neuronal Death in Mouse Cortical Cultures. AB - beta-Amyloid peptide (Abeta) is the main component of senile plaques in patients with Alzheimer's disease, and is known to be a main pathogenic factor of the disease. Recent evidence indicates that activation of NADPH oxidase (NOX) in microglia or astrocytes may be a source of Abeta-induced reactive oxygen species (ROS). We investigated the role of neuronal NOX in Abeta-induced neuronal death in mouse mixed cortical cultures. Cell death was assessed by measuring lactate dehydrogenase efflux to bathing media 24 or 48 hr after exposure to Abeta25-35, a fragment of Abeta with an equivalent neurotoxic effect. Abeta25-35 induced neuronal death in concentration- and time- dependent manners with apoptotic features. Neuronal death was significantly attenuated, not only by anti-apoptotic drugs, such as z-VAD-fmk and cycloheximide, but also by antioxidants, such as trolox, ascorbic acid, and epigallocatethin gallate. We also demonstrated that treatment with 20 uM Abeta25-35 increased fluorescent signals in mixed cortical cultures, but produced only weak signals in pure astrocyte cultures in the presence of 2',7'-dichlorofluorescin diacetate (DCF-DA), an indicator for intracellular ROS. Increased DCF-DA fluorescence was markedly inhibited, not only by trolox, but also by selective NOX inhibitors, such as apocynin and AEBSF. Western blot analyses revealed that Abeta25-35 increased the expression of gp91phox, a main subunit of NOX in cells. The above antioxidants, apocynin, and AEBSF significantly attenuated neuronal death induced by Abeta25-35. Furthermore, the gp91phox-specific siRNA-based knockdown of NOX significantly inhibited neuronal death. These results suggest that activation of neuronal NOX is involved in Abeta25-35-induced neuronal death. PMID- 29026708 TI - Identification of Risk Factors Influencing In-Stent Restenosis with Acute Coronary Syndrome Presentation. AB - Although the angiographic rates of in-stent restenosis (ISR) at later months have reduced dramatically with the introduction of drug-eluting stents (DESs), some patients with ISR after implantation of DES present with acute coronary syndrome (ACS). Here, we sought to identify parameters influencing the likelihood of restenosis with ACS presentation after DES implantation. Stented patients (n=3,817) with DESs in the Korea University Anam Hospital percutaneous coronary intervention registry were reviewed retrospectively for inclusion. In this database, 247 age- and sex-matched patients (6.5%) with ISR were allocated to either the Stable ISR group (n=78) or the ACS ISR group (n=73). Predictors of in stent restenosis were identified with Cox regression analyses. Age (hazard ratio [HR], 1.14; 95% confidence interval [CI], 1.02 to 1.27; p=0.026), diabetes (HR, 8.40; 95% CI, 1.30 to 54.1; p=0.025), use of aspirin (HR, 0.003; 95% CI, 0.0001 to 0.63; p=0.03), clopidogrel (HR, 0.005; 95% CI, 0.001 to 0.121; p=0.001), renin angiotensin system (RAS) blocker (HR, 0.02; 95% CI, 0.003 to 0.14; p<0.001), use of first -generation DES (HR, 0.07; 95% CI, 0.009 to 0.59; p=0.014), and matrix metalloproteinase 2 (MMP-2) levels (HR, 1.120; 95% CI, 1.001 to 1.190; p=0.004) during follow-up angiograms were significant predictors of ISR with ACS presentation during the 3 year follow-up. Age, diabetes, the use of first generation DES, and increased MMP-2 levels were significant predictors of ISR with ACS presentation; moreover, the use of aspirin, clopidogrel, RAS blocker, and the use of second generation DESs prevented ISR with ACS presentation. PMID- 29026709 TI - Needle Aspiration Biopsy of Seminiferous Tubules (NABST) as a Diagnostic Method in Korea. AB - To evaluate the diagnostic efficacy of needle aspiration biopsy of seminiferous tubules (NABST) and to represent the redistributed diagnostic results corresponding to testicular volumes and follicle-stimulating hormone (FSH) levels. In this retrospective study, we investigated 65 infertile men with either azoospermia or oligoasthenoteratozoospermia. Following NABST, specimens were stained with hematoxylin and eosin and classified into five histological types. With pre-procedure FSH levels and testicular volumes, we evaluated the probabilities of detecting sperms within biopsy specimens. NABST led to the classification of normal spermatogenesis in 31 cases (47.7%), hypospermatogenesis in 23 cases (35.4%), maturation arrest in 4 cases (6.2%), and Sertoli cell only syndrome in 4 cases (6.2%). The success rate of reaching a histological diagnosis using NABST was 95.4% (62 out of 65 cases). Fourteen patients (21.5%) had a testicular volume <15 cc; of these, 8 patients (57.1%) had normal spermatogenesis, 2 patients (14.3%) had hypospermatogenesis, 2 patients (14.3%) had maturation arrest and 2 patients (14.3%) had Sertoli cell-only syndrome (SCO). Twelve patients (18.5%) had an FSH level >=10 IU; of these, 6 (50%) had normal spermatogenesis, 2 patients (16.7%) had maturation arrest and 4 patients (33.3%) had SCO. Cases with an FSH level <10 IU were positively associated with a probability of detecting sperm using NABST (p<0.001). NABST is a reliable tool for the histological diagnosis of azoospermic and oligoasthenoteratozoospermic patients. The diagnostic success rate was high and associated with pathological accuracy. NABST is a convenient procedure with few complications. PMID- 29026710 TI - Factors Associated with C-peptide Levels after Diagnosis in Children with Type 1 Diabetes Mellitus. AB - C-peptide is the best indicator of endogenous insulin secretion in patients with diabetes. This study investigated the relationship between C-peptide levels and clinical/laboratory parameters of children with type 1 diabetes mellitus (T1DM), as measured at 6-month intervals after diagnosis. We retrospectively reviewed the data of 34 children with newly diagnosed T1DM. The study subjects were subdivided into a rapid progression group with C-peptide levels <0.6 ng/mL at 36 months (n=27; Group A) and a slow progression group with C-peptide levels >0.6 ng/mL at 36 months (n=7; Group B). Patients in Group A had a younger mean age at diagnosis (A: 9+/-4.3 years vs. B: 13.6+/-3.6 years; p=0.013) and lower body mass index (BMI) (A: 15.5+/-2.5 kg/m2 vs. B: 18.7+/-3.3 kg/m2; p=0.035). There were fewer asymptomatic patients with glucosuria in Group A, with these patients showing more severe symptoms, such as diabetic ketoacidosis (p=0.035), than those in Group B. Group A also had lower initial C-peptide levels (A: 0.5+/-0.46 ng/mL vs. B: 1.87+/-1.08 ng/mL; p=0.001). There were no significant intergroup differences in sex, family history, baseline hemoglobin A1c (HbA1c), potential of hydrogen (pH), autoantibodies or serum insulin. Simple correlation analyses showed that C peptide levels were correlated with age and BMI, but not with pH, insulin, or HbA1c. Younger patients, who had a lower BMI, significant symptoms with complications, and/or a low initial C-peptide level, tended to show a rapid rate of decrease in C-peptide levels. Early intensive insulin therapy to preserve beta cell function should be considered in these groups. PMID- 29026711 TI - Glycated Hemoglobin and All-Cause Mortality in Korean Type 2 Diabetes. AB - The purpose of this study was to evaluate the association between glycated hemoglobin (HbA1c) and all-cause mortality in type 2 diabetes mellitus. We conducted a community-based prospective cohort study of 352 type 2 diabetic patients aged 30-92 who participated in a community diabetes complications screening program in Gokseng-gun, Jeollanamdo, Korea. HbA1c levels were categorized as <6.5%, 6.5-6.9%, 7.0-7.9%, 8.0-8.9% and >=9.0%. Patients were followed up on for a mean of 6.9 years. The Cox proportional hazards model was used to evaluate the relationship between HbA1c levels and all-cause mortality. During the mean follow-up period of 6.9 years, 77 patients (21.9%) died. A J shaped association was found between HbA1c and all-cause mortality, with the lowest mortality at 6.5-6.9% of HbA1c levels. Compared to patients with HbA1c of 6.5-6.9%, patients with <6.5%, 7.0-7.9%, 8.0-8.9% and >=9.0% had an adjusted hazard ratio (95% confidence interval) for all-cause mortality of 1.71 (0.76 3.84), 1.23 (0.53-2.82), 1.32(0.51-3.44) and 2.66 (1.01-7.02), respectively. We found a J-shaped association between glycated hemoglobin and all-cause mortality in Korean type 2 diabetic patients. PMID- 29026712 TI - Therapy-related Acute Myeloid Leukemia Following Treatment for Burkitt's Lymphoma. PMID- 29026713 TI - Vitamin C-induced Acute Kidney Injury. PMID- 29026714 TI - Inflammatory Pseudotumor of the Lung: A Rare Presentation with Complete Regression to Pharmacotherapy. PMID- 29026715 TI - The 'All-or-None Law' Applied to the Vertical Growth Phase of Cutaneous Malignant Melanoma. PMID- 29026716 TI - Benign Recurrent Pleomorphic Adenoma of the Parotid Gland with Perineural Space Invasion. PMID- 29026717 TI - Addition of interleukin-6 to mouse embryo culture increases blastocyst cell number and influences the inner cell mass to trophectoderm ratio. AB - OBJECTIVE: In vitro culture of preimplantation embryos is improved by grouping embryos together in a drop of media. Individually cultured embryos are deprived of paracrine factors; with this in mind, we investigated whether the addition of a single embryo-secreted factor, interleukin-6 (IL-6), could improve the development of individually cultured embryos. METHODS: Mouse embryos were cultured individually in 2 uL of G1/G2 media in 5% oxygen and supplemented with a range of doses of recombinant mouse or human IL-6. RESULTS: Mouse IL-6 increased hatching at doses of 0.01 and 10 ng/mL compared to the control (93% and 93% vs. 78%, p<0.05) and increased the total number of cells at a dose of 0.1 ng/mL compared to the control (101.95+/-3.36 vs. 91.31+/-3.33, p<0.05). In contrast, the highest dose of 100 ng/mL reduced the total number of cells (79.86+/-3.29, p<0.05). Supplementation with human IL-6 had a different effect, with no change in hatching or total cell numbers, but an increase in the percentage of inner cell mass per embryo at doses of 0.1, 1, and 100 ng/mL compared to the control (22.9%+/-1.1%, 23.3%+/-1.1%, and 23.1%+/-1.1% vs. 19.5%+/-1.0%, p<0.05). CONCLUSION: These data show that IL-6 improved mouse embryo development when cultured individually in complex media; however, an excess of IL-6 may be detrimental. Additionally, these data indicate that there is some cross-species benefit of human IL-6 for mouse embryos, but possibly through a different mechanism than for mouse IL-6. PMID- 29026718 TI - The association of follicular fluid volume with human oolemma stretchability during intracytoplasmic sperm injection. AB - OBJECTIVE: Oocyte degeneration often occurs after intracytoplasmic sperm injection (ICSI), and the risk factor is low-quality oocytes. The follicular fluid (FF) provides a crucial microenvironment for oocyte development. We investigated the relationships between the FF volume aspirated from individual follicles and oocyte retrieval, oocyte maturity, oolemma stretchability, fertilization, and development. METHODS: This retrospective study included data obtained from 229 ICSI cycles. Ovarian stimulation was performed according to a gonadotropin-releasing hormone antagonist protocol. Each follicle was individually aspirated and divided into six groups according to FF volume (<1.0, 1.0 to <2.0, 2.0 to <3.0, 3.0 to <4.0, 4.0 to <5.0, and >=5.0 mL). Oolemma stretchability during ICSI was evaluated using a mechanical stimulus for oolemma penetration, that is, the stretchability was assessed by oolemma penetration with aspiration (high stretchability) or without aspiration (low stretchability). RESULTS: Oocyte retrieval rates were significantly lower in the <1.0 mL group than in the >=1.0 mL groups (46.0% [86/187] vs. 67.5%-74.3% [172/255 to 124/167], respectively; p<0.01). Low oolemma stretchability was significantly more common in the <1.0 mL group than in the >=1.0 mL groups during ICSI (22.0% [13/59] vs. 5.8%-9.4% [6/104 to 13/139], respectively; p=0.018). There was a relationship between FF volume and oolemma stretchability. However, there were no significant differences in the rates of fertilization, cleavage, >=7 cells at day 3, and blastocyst development among all groups. CONCLUSION: FF volume is potentially associated with the stretchability of metaphase II oolemma during ICSI. Regarding oolemma stretchability, ensuring a uniform follicular size during ovarian stimulation is crucial to obtain good-quality oocytes. PMID- 29026720 TI - Efficacy of embryo transfer on day 2 versus day 3 according to maternal age in patients with normal ovarian response. AB - OBJECTIVE: Delaying embryo transfer (ET) enables us to select among the embryos available for transfer and is associated with positive effects on implantation and pregnancy outcomes. However, the optimal day for ET of human cleavage-stage embryos remains controversial. METHODS: A retrospective study of 3,124 in vitro fertilization/intracytoplasmic sperm injection cycles (2,440 patients) was conducted. We compared the effects of day 2 and 3 ET on rates of implantation and pregnancy outcomes between young maternal age (YMA; <38 years old, n=2,295) and old maternal age (OMA; >=38 years old, n=829) patient groups. RESULTS: The YMA and OMA groups did not differ in terms of patient characteristics except for the proportion of unexplained factor infertility, which was significantly greater in the OMA group, and the proportion of arrested embryos, which was significantly greater in the YMA group. However, the biochemical pregnancy, clinical pregnancy, ongoing pregnancy, abortion, and implantation rates per cycle were not significantly different between day 2 and 3 ET in the YMA group or the OMA group. CONCLUSION: We suggest that offering patients the opportunity to decide which day would be suitable for ET could be part of a patient-friendly protocol that takes into consideration an infertile woman's circumstances and work schedule by allowing ET to be performed on day 2 instead of the traditional transfer on day 3. PMID- 29026719 TI - ICSI significantly improved the pregnancy rate of patients with a high sperm DNA fragmentation index. AB - OBJECTIVE: Correlations between semen parameters and sperm DNA fragmentation index (DFI) were investigated to identify characteristics of sperm without DNA damage that could be used in selecting sperm for intracytoplasmic sperm injection (ICSI). Pregnancy outcomes were compared to determine whether in vitro fertilization (IVF) or ICSI is a better choice for patients who have sperm with a high-DFI. METHODS: Semen analysis was carried out in 388 patients who visited our IVF center for the first time to investigate correlations between sperm DFI and semen parameters. In addition, 1,102 IVF cycles in 867 patients were carried out in the present study; 921 cycles in the low-DFI group (DFI <30%) and 181 cycles in the high-DFI group (DFI >=30%). Both the low- and high-DFI groups were subdivided into IVF and ICSI cycle groups. RESULTS: Sperm DFI showed significant inverse correlations with sperm motility (r=-0.435, p<0.001) and morphology (r= 0.153, p<0.05). Sperm DFI also showed significant correlations with rapid motility (r=-0.436, p<0.001), and the kinetic parameters of average-path velocity (r=-0.403) and linearity (r=-0.412). Although there was no significant difference in the pregnancy rates between IVF (48.6%) and ICSI (44.8%) in the low-DFI group, the pregnancy rate of ICSI cycles (44.8%, p<0.05) was significantly higher than IVF cycles (25.0%) in the high-DFI group. No significant difference was observed in the abortion rates between the low-DFI (52 of 921, 5.6%) and high-DFI groups (7 of 181, 3.8%). CONCLUSION: ICSI is a better choice than IVF for improving the pregnancy outcomes of patients who have sperm with a high DFI. PMID- 29026721 TI - Expression of the genes for peroxisome proliferator-activated receptor-gamma, cyclooxygenase-2, and proinflammatory cytokines in granulosa cells from women with polycystic ovary syndrome. AB - OBJECTIVE: To identify differences in the expression of the genes for peroxisome proliferator-activated receptor (PPAR)-gamma, cyclooxygenase (COX)-2, and the proinflammatory cytokines interleukin (IL)-6 and tumor necrosis factor (TNF) alpha in granulosa cells (GCs) from polycystic ovary syndrome (PCOS) patients and controls undergoing controlled ovarian stimulation. METHODS: Nine patients with PCOS and six controls were enrolled in this study. On the day of oocyte retrieval, GCs were collected from pooled follicular fluid. Total mRNA was extracted from GCs. Reverse transcription was performed and gene expression levels were quantified by realtime quantitative polymerase chain reaction. RESULTS: There were no significant differences in age, body mass index, and total gonadotropin dose, except for the ratio of luteinizing hormone to follicle stimulating hormone between the PCOS and control groups. PPAR-gamma and COX-2 mRNA was significantly downregulated in the GCs of PCOS women compared with controls (p=0.034 and p=0.018, respectively), but the expression of IL-6 and TNF alpha mRNA did not show significant differences. No significant correlation was detected between the expression of these mRNA sequences and clinical characteristics, including the number of retrieved oocytes, oocyte maturity, cleavage, or the good embryo rate. Positive correlations were found among the PPAR-gamma, COX-2, IL-6, and TNF-alpha mRNA levels. CONCLUSION: Our data may provide novel clues regarding ovarian GC dysfunction in PCOS, and indirectly provide evidence that the effect of PPAR-gamma agonists in PCOS might result from alterations in the ovarian follicular environment. Further studies with a larger sample size are required to confirm these proposals. PMID- 29026722 TI - MTHFR 3'-untranslated region polymorphisms contribute to recurrent pregnancy loss risk and alterations in peripheral natural killer cell proportions. AB - OBJECTIVE: To identify the associations between polymorphisms of the 3' untranslated region (UTR) of methylenetetrahydrofolate reductase (MTHFR) gene, which codes for an important regulatory enzyme primarily involved in folate metabolism, and idiopathic recurrent pregnancy loss (RPL) in Korean women. METHODS: The study population comprised 369 RPL patients and 228 controls. MTHFR 2572C>A, 4869C>G, 5488C>T, and 6685T>C 3'-UTR polymorphisms were genotyped by polymerase chain reaction-restriction fragment length polymorphism analysis or by TaqMan allelic discrimination assays. Natural killer cell proportions were determined by flow cytometry. RESULTS: The MTHFR 2572-5488-6685 (A-C-T) haplotype had an adjusted odds ratio of 0.420 (95% confidence interval, 0.178-0.994; p=0.048) for RPL. Analysis of variance revealed that MTHFR 4869C>G was associated with altered CD56+ natural killer cell percentages (CC, 17.91%+/-8.04%; CG, 12.67%+/-4.64%; p=0.024) and folate levels (CC, 12.01+/-7.18 mg/mL; CG, 22.15+/ 26.25 mg/mL; p=0.006). CONCLUSION: Variants in the 3'-UTR of MTHFR are potential biomarkers for RPL. However, these results should be validated in additional studies of ethnically diverse groups of patients. PMID- 29026723 TI - Circadian Rhythm Disruption and Subsequent Neurological Disorders in Night-Shift Workers. AB - A large number of people in highly industrialized society are employed in night shift work. Night-shift work interrupts the 24-hour daily cycle known as the circadian rhythm, as well as melatonin synthesis. These disruptions can make the body susceptible to oxidative stress and neural damage. In this regard, it is recommended that employees avoid long-term exposure to night-shift work. PMID- 29026724 TI - Lifestyle Intervention for Obese Women. AB - Obesity produces various physical and psychological health risks in women, including effects on reproductive health. In particular, the possibility of infertility in obese women is high. Lifestyle interventions involving nutrition education, physical activity, and stress management have been shown to be effective in improving the health of obese subjects. Therefore, it is necessary to develop and apply a lifestyle intervention program to promote reproductive health in obese women. PMID- 29026725 TI - Effects of Exercise Training on Physical Fitness and Biomarker Levels in Breast Cancer Survivors. AB - BACKGROUND: Exercise has been identified as a beneficial intervention to enhance quality of life in breast cancer survivors. In addition, there has been a noteworthy increase in studies emphasizing the benefits of exercise in cancer. We sought to summarize the empirical literature concerning the effects of exercise on physical fitness and biomarker levels in breast cancer survivors according to the type of exercise. METHODS: We searched PubMed and PubMed Central for studies on the association of exercise with the levels of various biomarkers and physical fitness in breast cancer survivors. We investigated the effects of different types of exercise (aerobic, resistance, or combined) on breast cancer survivors, with changes in physical fitness and biomarker levels as the primary outcomes. RESULTS: In total, 118 research papers published from 2012 to July 2016 were retrieved from PubMed and PubMed Central. Of these, 24 papers met our inclusion criteria. All types of exercise were found to improve physical fitness in breast cancer survivors. However, the results with regard to biomarkers were controversial. CONCLUSION: The findings of this review suggest that combined exercise is associated with better outcomes than aerobic or resistance exercise alone in breast cancer survivors. PMID- 29026726 TI - Hand Grip Strength and Gender: Allometric Normalization in Older Adults and Implications for the NIOSH Lifting Equation. AB - BACKGROUND: Many countries are experiencing an aging workforce with women workers making up a growing proportion. Workplaces often require employees to complete lifting tasks that require the ability of the hand to grasp an implement (coupling). The National Institute for Occupational Safety and Health (NIOSH) has developed an equation for manual lifting tasks hoping to minimize the potential for a workplace back-injury related to a lifting task. The NIOSH lifting equation relies upon stress variables including a coupling factor. However, little is known regarding grip strength as related to the NIOSH lifting equation coupling factor. The purpose of this study was to investigate differences in grip strength due to gender in older adults. METHODS: The participant's (68-88 years) maximal grip (MG) strength measures were collected for each hand with a hand grip dynamometer (kg). MG scores were converted to Newtons (N), normalized to body mass, and allometrically scaled. Measures of MG were than compared between genders with an independent t-test. RESULTS: The hand grip measures of MG (kg) [male: 30.3 +/- 5.6, female: 10.6 +/- 3.3], MG (kg) / body mass (kg) [male: 0.35 +/- 0.06, female: 0.16 +/- 0.04], MG (N) / (body mass (kg))0.67 [male: 15.1 +/- 2.5, female: 6.2 +/- 1.7], and MG (N) / (body height (m))1.84 [male: 103.6 +/- 18.6, female: 42.6 +/- 10.6] were all significantly lower (p < 0.0001) for women than men. Regardless of how grip strength was reported, there is a strong difference in grip strength between genders in this sample. The NIOSH lifting equation does not account for varying grip strength due to aging and gender differences. CONCLUSIONS: It is recommended that grip strength variability be accounted for in the coupling factor of the NIOSH lifting equation. PMID- 29026727 TI - Adverse Effects of Prolonged Sitting Behavior on the General Health of Office Workers. AB - BACKGROUND: Excessive sitting behavior is a risk factor for many adverse health outcomes. This study aimed to survey the prevalence of sitting behavior and its adverse effects among Iranian office workers. METHODS: This cross-sectional study included 447 Iranian office workers. A two-part questionnaire was used as the data collection tool. The first part surveyed the demographic characteristics and general health of the respondents, while the second part contained the Nordic Musculoskeletal Questionnaire (NMQ) to assess symptoms. Statistical analyses were performed using the Statistical Package for the Social Sciences software using Mann-Whitney U and Chi-square tests and multiple logistic regression analysis. RESULTS: The respondents spent an average of 6.29 hours of an 8-hour working shift in a sitting position. The results showed that 48.8% of the participants did not feel comfortable with their workstations and 73.6% felt exhausted during the workday. Additionally, 6.3% suffered from hypertension, and 11.2% of them reported hyperlipidemia. The results of the NMQ showed that neck (53.5%), lower back (53.2%) and shoulder (51.6%) symptoms were the most prevalent problem among office workers. Based upon a multiple logistic regression, only sex had a significant association with prolonged sitting behavior (odds ratio = 3.084). Our results indicated that long sitting times were associated with exhaustion during the working day, decreased job satisfaction, hypertension, and musculoskeletal disorder symptoms in the shoulders, lower back, thighs, and knees of office workers. CONCLUSION: Sitting behavior had adverse effects on office workers. Active workstations are therefore recommended to improve working conditions. PMID- 29026728 TI - Analysis of the Relationship between Sleep Duration and Body Mass Index in a South Korean Adult Population: A Propensity Score Matching Approach. AB - BACKGROUND: One-third of the present adults in South Korea are obese, and previous studies have demonstrated that sleep duration is considered a risk factor for obesity. Hence, I assessed the relationship between sleep duration and body mass index in a South Korean adult population. METHODS: This cross-sectional study consists of a representative sample of 4,218 South Korean adults (20-64 years) who participated in the sixth Korea National Health and Nutrition Examination Survey (2015). As statistical analysis methods, data were analyzed using chi-square test and multiple logistic regression. Propensity score matching (PSM) was applied to control selection bias, and obesity-related factors were used as covariates in PSM. RESULTS: According to the multiple logistic regression analysis, people who sleep for more than seven hours a day were less likely to be obese than those who sleep for less than seven hours a day in the pre-match (OR = 0.75, 95%CI = 0.65-0.88) and post-match (OR = 0.77, 95%CI = 0.65-0.90) samples. CONCLUSIONS: This finding suggests that South Korean adults who reported sleeping more than 7 hours a day were linked to decreased body mass index. Hence, the proper amount of sleep is necessary to reduce the prevalence of obesity in this population. PMID- 29026729 TI - Probiotics in Children: What Is the Evidence? AB - The number of papers discussing probiotics increases tremendously that limits the possibility for primary care physicians and clinicians to stay updated. Therefore, the aim of this paper will be to summarize available evidence of probiotic use in well-defined clinical indications of importance for pediatricians. Based on currently available evidence certain probiotic strains (Lactobacillus rhamnosus GG [LGG] and Saccharomyces boulardii) have proven effect in the treatment of acute gastroenteritis and prevention of antibiotic associated diarrhea. Furthermore, LGG was proven to be effective in prevention of nosocomial diarrhea and respiratory tract infection in day care centers. In conclusion, not all probiotic strains have same efficacy for all clinical indications, therefore, only strains with proven efficacy and safety should be recommended. PMID- 29026730 TI - Important Role of Medical Training Curriculum to Promote the Rate of Human Milk Feeding. AB - The rate of human milk feeding has been decreasing despite the diverse efforts of many physicians and nurses, as well as numerous professional organizations and various international health institutions. The number of physicians and nurses who can provide proper guidance for human milk feeding and offer appropriate knowledge and techniques to allow the most beneficial and convenient manner of breastfeeding is quite deficient. It is suggested that physicians and nurses be trained to teach and educate about the medical importance of human milk feeding to lactating mothers. This can be accomplished through systemic changes in medical education and clinical practice. However, the curricula of medical schools in Korea do not provide enough education and training to effect an increase in human milk feeding. The author strongly recommends that the educational objectives for medical schools and resident training offer more education and training concerning so that they are well aware of breastfeeding basics and techniques, and have ability to solve lactation-associated clinical problems. PMID- 29026731 TI - Not All Children with Cystic Fibrosis Have Abnormal Esophageal Neutralization during Chemical Clearance of Acid Reflux. AB - PURPOSE: Acid neutralization during chemical clearance is significantly prolonged in children with cystic fibrosis, compared to symptomatic children without cystic fibrosis. The absence of available reference values impeded identification of abnormal findings within individual patients with and without cystic fibrosis. The present study aimed to test the hypothesis that significantly more children with cystic fibrosis have acid neutralization durations during chemical clearance that fall outside the physiological range. METHODS: Published reference value for acid neutralization duration during chemical clearance (determined using combined impedance/pH monitoring) was used to assess esophageal acid neutralization efficiency during chemical clearance in 16 children with cystic fibrosis (3 to <18 years) and 16 age-matched children without cystic fibrosis. RESULTS: Duration of acid neutralization during chemical clearance exceeded the upper end of the physiological range in 9 of 16 (56.3%) children with and in 3 of 16 (18.8%) children without cystic fibrosis (p=0.0412). The likelihood ratio for duration indicated that children with cystic fibrosis are 2.1-times more likely to have abnormal acid neutralization during chemical clearance, and children with abnormal acid neutralization during chemical clearance are 1.5-times more likely to have cystic fibrosis. CONCLUSION: Significantly more (but not all) children with cystic fibrosis have abnormally prolonged esophageal clearance of acid. Children with cystic fibrosis are more likely to have abnormal acid neutralization during chemical clearance. Additional studies involving larger sample sizes are needed to address the importance of genotype, esophageal motility, composition and volume of saliva, and gastric acidity on acid neutralization efficiency in cystic fibrosis children. PMID- 29026732 TI - Prevalence and Epidemiological Characteristics of Endoscopically Proven Reflux Esophagitis in Children in Korea. AB - PURPOSE: The prevalence of reflux esophagitis (RE) has increased recently in Korea. Little is known concerning the prevalence and characteristics of RE in pediatric patients. This study investigated the prevalence and influence of risk factors in endoscopically proven RE in Korea in pediatric patients over a period of 14 years. METHODS: A retrospective chart review of all patients between the ages of 1 month and 20 years who underwent esophagogastroduodenoscopy at Samsung Medical Center between 2001 and 2014 was carried out. Univariate and multivariate analyses were conducted to identify independent risk factors for RE. RESULTS: The prevalence rate of endoscopically proven RE in this study was 28.7% (978/3,413). The prevalence of RE increased from 11.8% from 2001 to 2007 to 37.7% from 2008 to 2014. Multivariate logistic regression analysis revealed that residency in the Greater Gangnam area (odds ratio [OR], 1.21; 95% confidence interval [CI], 1.02 1.44) and age (OR, 1.13; 95% CI, 1.11-1.15) were significant predictive factors for the presence of RE. CONCLUSION: The prevalence rate of endoscopically proven pediatric RE has increased over the past 14 years. Residency and older age are more important independent risk factors for pediatric RE in Korea. PMID- 29026733 TI - Safety of a New Synbiotic Starter Formula. AB - PURPOSE: Breastfeeding is the best way to feed all infants, but not all infants can be (exclusively) breastfed. Cow's milk based infant formula is the second choice infant feeding. METHODS: The safety of a new synbiotic infant formula, supplemented with Bifidobacterium lactis and fructo-oligosaccharides, with lactose and a whey/casein 60/40 protein ratio was tested in 280 infants during 3 months. RESULTS: The median age of the infants at inclusion was 0.89 months. Weight evolution was in accordance with the World Health Organization growth charts for exclusive breastfed infants. The evolution of all anthropometric parameters (weight-for-length z score and body mass index-for-age z score) was within the normal range. The incidence of functional constipation (3.2%), daily regurgitation (10.9%), infantile crying and colic (10.5%) were all significantly lower than the reported median prevalence for a similar age according to literature (median value of 7.8% for functional constipation, 26.7% for regurgitation, 17.7% for infantile colic). CONCLUSION: The new synbiotic infant starter formula was safe, resulted in normal growth and was well tolerated. Functional gastro-intestinal manifestations (functional constipation, regurgitation and colic) were significantly lower than reported in literature. Synbiotics (Bifidobacterium lactis and fructo-oligosaccharides) in cow's milk based infant formula bring the second choice infant feeding, formula, closer to the golden standard, exclusive breastfeeding. PMID- 29026734 TI - Cytomegalovirus Infection under a Hybrid Strategy in Pediatric Liver Transplantation: A Single-Center Experience. AB - PURPOSE: To evaluate the outcomes of a hybrid prophylactic strategy to prevent cytomegalovirus (CMV) disease in pediatric liver transplantation (LT) patients. METHODS: CMV DNAemia was regularly monitored by quantitative nucleic acid amplification test (QNAT) and was quantified in all children. CMV infection and disease were defined according to the International Consensus Guidelines. The hybrid strategy against CMV infection consisted of universal 3-week prophylaxis and preemptive treatment of intravenous ganciclovir regardless of the recipient's serostatus. RESULTS: A total of 143 children who underwent living donor LT were managed using the hybrid strategy. The overall incidence of CMV infection by QNAT was 48.3% (n=69/143). The highest CMV DNAemia positivity was observed in 49.2% (n=60/122) of children in the D+/R+ group, followed by 46.7% (n=7/15) in the D+/R group. CMV disease was noted in 26.1% (n=18/69) patients. Forty-three (62.3%) children had undergone preemptive therapy consisting of intravenous ganciclovir. No symptomatic patients developed tissue-invasive disease, resulting in no CMV associated mortality. CONCLUSION: The incidence of CMV infection was high in pediatric LT patients despite the hybrid strategy. However, tissue-invasive disease in pediatric LT did not occur. PMID- 29026735 TI - The Association between Socioeconomic Status and Obesity in Korean Children: An Analysis of the Fifth Korea National Health and Nutrition Examination Survey (2010-2012). AB - PURPOSE: Obesity is one of the most common health problems among children and its prevalence has increased in recent decades. Socioeconomic status (SES) is a well known risk factor for childhood obesity although the associations were different across countries. Previous studies in other countries have reported a positive association between childhood obesity and SES in developing countries, and inverse correlation has been reported in developed countries. For this reason, we wanted to investigate the relationship between SES and obesity in Korean children. METHODS: Data were acquired 3,095 boys and girls who participated in the fifth Korea National Health and Nutrition Examination Survey, which was conducted from 2010 to 2012. Body mass index was calculated from measured anthropometric data using the 2007 Korean National Growth Charts. RESULTS: Upon univariate analysis, we did not find any statistically significant differences in the parental employment status, monthly family income between children with and without obesity. Multiple logistic regression analysis showed childhood obesity was positively associated with maternal overweight (OR, 1.889; 95% CI, 1.079 3.309), maternal obesity (OR, 3.409; 95% CI, 2.228-5.215) and paternal obesity (OR, 2.135; 95% CI, 1.257-3.627). CONCLUSION: The present study showed that socioeconomic status might not an important risk factor for obesity in Korean children. These results warrant further studies to clarify the association between SES and obesity in Korean children. PMID- 29026736 TI - Giant Duplication Cyst Presenting as a Discharging Umbilicus. AB - Alimentary tract duplication cysts are rare congenital anomalies, most commonly located in the ileum, but may present anywhere from mouth to anus.Clinically, they may be asymptomatic, incidentally diagnosed or may present with obstruction, volvulus, intussusception or gastrointestinal bleed. Here we report a case of a one year old male child presenting in gasping state and shock. Despite the initial strong suspicion of Meckel's diverticulum and tubercular abdomen, the final diagnosis remained elusive till exploratory laparotomy was performed which revealed a duplication cyst of ileum with perforation into the umbilicus. Duplication cyst should always be kept as a differential diagnosis so that early intervention can help in better management. PMID- 29026737 TI - Eosinophilic Gastrointestinal Disorder Presenting as Intractable Vomiting and Ascites in a Young Girl. AB - Eosinophilic gastrointestinal disorder (EGID) is a rare disease in children that affects the bowel wall, with eosinophilic infiltration in the absence of any other causes for eosinophilia. The etiology remains unknown, but allergies and immunological imbalance are suspected triggers. We encountered a case of serosal EGID presenting as intractable vomiting and ascites in a 9-year-old girl, after influenza virus infection. Peripheral eosinophilia was not present. The diagnosis was confirmed by biopsy of the bowel wall through laparotomy and endoscopy, and controlled by 2 courses of steroid therapy due to recurring symptoms. Influenza virus infection was assumed to play a role in the onset of EGID through a Th2 response that stimulated eosinophilic infiltration in the GI tract. We therefore report this case along with a literature review. PMID- 29026738 TI - Two Cases of Colonoscopic Retrieval of a Foreign Body in Children: A Button Battery and an Open Safety Pin. AB - Ingestion of foreign body in children is a relatively common problem among paediatric population. The foreign bodies mostly pass spontaneously through the gastrointestinal tract. However, complications can occur according to its anatomical location, the characteristics of the foreign body, and delays in management. Although the cases of ingested button batteries or sharp objects impacted at the gastrointestinal tract can be very serious, there have been very only a few cases have reported colonoscopic removal of these dangerous foreign bodies in adults, and there have been no case reports in children. We report one case of a button battery and one case of an open safety pin, both impacted in the terminal ileum that had moved from the stomach within a few hours of ingestion and were eventually managed by colonoscopy without any complications. PMID- 29026739 TI - Mohalla Clinics of Delhi, India: Could these become platform to strengthen primary healthcare? AB - The mohalla or community clinics in Delhi, India aims to provide basic health services to underserved population in urban settings. This article reviews and analyzes the strengths & limitations of the concept and explores the role these clinics can play in (1) reforming urban health service delivery, (2) addressing health inequities, and (3) strengthening primary health care. These clinics provide basic healthcare services to people, in underserved areas, in a responsive manner, have brought health higher on the political agenda and the governments of a number of Indian states have shown interest in adoption (of a variant) of this concept. Strengths notwithstanding, the limitations of these clinics are: curative or personal health services focus and relatively less attention on public/population health services. It is proposed that while setting up these clinics, the government should built upon existing health system infrastructure such as dispensaries, addressing the existing challenges. The new initiative need not to be standalone infrastructure, rather should aimed at health system strengthening. These need to have a functional linkage with existing programs, such as Urban Primary Health Centres (U-PHCs) under national urban health mission (NUHM) and could be supplemented with overall efforts for innovations and other related reforms. The author proposes a checklist 'Score 100' or 'S-100', which can be used to assess the readiness and preparedness for such initiative, should other state governments and/or major city in India or other countries, plan to adopt and implement similar concept in their settings. In last 18 months, the key contribution of these clinics has been to bring health to public and political discourse. Author, following the experience in Delhi, envisions that these clinics have set the background to bring cleanliness-health education-sanitation-social sectors (C-H-E-S-S or CHESS) as an alternative to Bijli-Sadak-Paani (B-S-P) as electoral agenda and political discourse in India. The article concludes that Mohalla Clinics, could prove an important trigger to initiate health reforms and to accelerate progress towards universal health coverage in India. PMID- 29026741 TI - Salt reduction strategy at population level. AB - World is facing a huge burden of noncommunicable diseases such as hypertension, ischemic health diseases, and stroke. Moreover, the developing countries have had a relatively speedy rise of the problem, with noncommunicable diseases occurring at much lower age as compared to the developed world. The World Health Organization, therefore, recommends reduction in salt intake at population level to <5 g/day. Not all researchers and public health physicians agree to it, leading to conflicting information for a primary care physician. This evidence based summary documents this polarization of the recommendations regarding salt reduction and acknowledges the ongoing challenge primary care physicians face when following such evidence based guidelines. PMID- 29026740 TI - Diabetes and Ramadan: A concise and practical update. AB - Despite the fact that the month of Ramadan includes 29-30 days and the duration of fasting for each day can last for between 12 and 16 h, it was estimated that a large number of individuals with diabetes do fast during Ramadan. In light of recent advancement of new pharmacological agents, drugs such as vildagliptin, sitagliptin, and liraglutide were found to be safe to use during this month of fasting. These therapeutic agents can also be used in combination with metformin. The use of sulfonylureas, in most of the recent guidelines about diabetes and Ramadan, seems not to gain much support due to the risk of hypoglycemia. In this review, we also addressed the use of insulin injection, insulin pump, and education before, during, and after Ramadan. Further research is needed to determine (i) the therapeutic benefit of new antidiabetic agents and (ii) the benefit of new technologies for the treatment of diabetes. PMID- 29026742 TI - Contraceptive behavior of couples undergoing sterilization in an Eastern State of India. AB - BACKGROUND: As a part of a larger study for evaluating the effectiveness of a community-based family welfare program, this study assessed the contraceptive behavior of couples preceding sterilization and termination of pregnancies, if any during the interim period. METHODS: During May-June 2013, a cross-sectional study was undertaken in three districts of Odisha, an eastern state of India with poor maternal health indicators. Using a 15 * 14 cluster design with probability proportionate to size sampling 15 village clusters from each district were selected. Seven beneficiaries from the catchment area of two Accredited Social Health Activist of the selected villages were interviewed (14 respondents from each village) using a pretested predesigned questionnaire. RESULTS: A total of 630 clients with either of the partner having undergone sterilization were interviewed. Male partner having undergone vasectomy was < 1% (n = 3). The mean age (standard error mean [SEM]) of the respondent women was 34.54 +/- 0.26 years. The mean age of the women at the time of sterilization was 27.12 (standard deviation [SD], 3.8, SEM 0.15 and median 26.83 years) years. Women as young as 22 years had undergone sterilization. Average family size was 2.81 with about 29 respondents (4.5%) having 5 or more children. The average duration between the last childbirth (LCB) to the date of sterilization was 18.37 months (range: 1-142 months, SD: 24 months, SE: 10 months). Seventy-two percent of the respondents did not use any method of contraception during this period. Methods adopted for contraception among the users was pill (20%) followed by condom (7%), and intrauterine contraceptive device (IUCD) was least used (0.2%). Ten percent of the women had undergone abortion before sterilization either once (7.9%) or more than once (2.1%). CONCLUSION: There was a gross delay in sterilization after LCB. Postpartum sterilization or IUCD were also not used frequently. PMID- 29026743 TI - Management of diabetic ketosis and ketoacidosis with intramuscular regular insulin in a low-resource family medicine setting. AB - BACKGROUND: India is facing an epidemic of diabetes mellitus (DM). Effective management of complications of DM is a challenge in resource-poor areas of India. This study addresses the need to explore low-cost methods to manage diabetic ketosis (DK) and diabetic ketoacidosis (DKA). OBJECTIVES: To demonstrate the use of intramuscular (IM) regular insulin as a safe alternative method to control DK and DKA in a family practice setting. MATERIALS AND METHODS: A retrospective chart review was done for 34 patients admitted with DK and DKA in a family medicine unit for the urban poor over 5 years. Data on age, sex, precipitating factors, blood pressure, number of days of hospitalization, amount of insulin, and time required to control blood glucose (BG) and to correct acidosis were entered into EpiData version 3.1 and analyzed using SPSS software version 17. RESULTS: Administration of IM regular insulin was effective in reducing the BG to < 250 mg/dL in patients with DK and DKA. The mean time required for this in the ketosis group was 3.8 h and in the ketoacidosis group was 3.9 h. The mean amount of insulin required for correction of acidosis in the ketoacidosis group was 72.3 units and the mean time to achieve this was 33 h. Of the 34 patients, only one in the ketoacidosis group had hypoglycemia. There was no fatality or referral of any patient. CONCLUSION: This study demonstrates that IM regular insulin is a safe alternative method in managing DK and DKA in a family medicine setting. PMID- 29026744 TI - Profile of drug-resistant tuberculosis in Western Maharashtra. AB - CONTEXT: Drug-resistant tuberculosis (TB) strains have evolved mainly due to incomplete or improper treatment of TB patients and are one of the hurdles in controlling TB problem. It is better to understand the magnitude and comorbidities associated with drug-resistant TB. AIM AND OBJECTIVES: (1) To study some of the sociodemographic profile and history of TB treatment of drug resistant TB cases. (2) To study their drug-resistance pattern and their comorbidity profile. SETTINGS AND DESIGN: It was a record-based study descriptive, cross-sectional study of drug-resistant TB cases that were referred to State TB Training and Demonstration Centre (STDC). MATERIALS AND METHODS: The data were collected by means of use of TB patient treatment register of those tested at STDC during first two quarters of the year 2012 (from January to June 2012). Sputum samples of all the cases were subjected to concentrated microscopy, and all positive samples were tested by GeneXpert and Line Probe Assay for drug susceptibility testing (DST) for isoniazid and rifampicin. STATISTICAL ANALYSIS: The findings were analyzed with Epi info7, using the mean, standard deviation, Chi-square test. RESULTS: The mean age of the patients was 35.65 +/- 13.59 years, majority 71.87% were males. The majority of patients 72.91% had the previous history of TB. A majority 68.75% of the patients had acquired drug resistance, and 73.95% of cases were suffering from multidrug-resistant TB. A total of 28.13% patients had self-reported comorbidity. A majority 62.5% had failure as the treatment outcome for the current episode of TB and mortality was seen in 12.5% cases. CONCLUSIONS: Majority had failure as a treatment outcome due to advanced disease status or late diagnosis. Rapid diagnosis and DST for first- and second line drugs will greatly improve the clinical outcome. PMID- 29026745 TI - Psychometric properties of the Trust in Physician Scale in Tamil Nadu, India. AB - CONTEXT: Trust in health care is of high intrinsic value. It also leads to positive outcomes such as better treatment adherence and disclosure of sensitive information. Therefore, there is a need to measure trust in health care objectively. AIMS: To assess the psychometric properties of the Trust in Physician Scale in Tamil Nadu, India. SETTINGS AND DESIGN: The study was conducted in a private tertiary hospital setting in Tamil Nadu by a cross sectional survey design. METHODS: The Trust in Physician Scale and General Trust Scale were administered to 288 participants in the waiting area of a tertiary care hospital in Tamil Nadu. STATISTICAL ANALYSIS: Descriptive statistics, exploratory factor analysis, and Cronbach's alpha statistics were used to assess the validity and reliability of the scale. RESULTS: The respondents were predominantly men from rural areas, older than 35 years of age, and with lesser than 8 years of schooling. The questionnaire had acceptable internal consistency with Cronbach's alpha of 0.707 (95% confidence interval 0.654-0.755). Exploratory factor analysis divided the questionnaire into four domains. Seven items loaded into factor 1 which explained dependability and competence of the physician, two items loaded on factor 2, and one each in factors 3 and 4. The latter four items had very low item to total correlations and hence did not contribute much to the questionnaire. CONCLUSIONS: The Trust in Physician questionnaire needs to be modified to accurately measure the domains of trust in the context of the study area. More qualitative studies are required to understand the domains of trust in this cultural and social context. PMID- 29026746 TI - Effectiveness of first-aid training on school students in Singur Block of Hooghly District, West Bengal. AB - OBJECTIVE: First aid is the helping behavior and initial care provided for an acute illness or injury. Students have the potential for changing the health scenario of the society if properly groomed and educated. The objective of the study is to evaluate the effectiveness of educational intervention on the first aid among middle school students of a rural school in West Bengal. MATERIALS AND METHODS: A total of 230, 6th and 7th standard students were given a self administered questionnaire for assessing their baseline knowledge about management of common injuries followed by educational intervention with a systematically devised teaching module during February to March 2016. Post intervention evaluation of their knowledge acquisition was done after 2 weeks with same questionnaire. RESULTS: The baseline knowledge on the management of selected injuries was found to be insufficient among the study subjects. Paired t test was performed to compare the pre- and post-test scores of knowledge and attitude of the students about first aid, and there was a significant change in knowledge from pretest score (mean = 1.50, standard deviation [SD] =0.47) to posttest score (mean = 6.53, SD = 1.30). To quantify the effectiveness of health education, effect size (Cohen's d) was derived. For knowledge score, Cohen's d was 5.14 with large effect size indicating highly effective impact of the training program. Significant change was also noticed regarding attitude regarding first aid as evident from increase in pretest score (mean = 1.19, SD = 0.96) to posttest score (mean = 3.17, SD = 1.03); Cohen's d was 1.88 with medium effect size. CONCLUSION: Inculcating first-aid training in the school curriculum can be a fruitful investment in ensuring proper and timely management of illnesses and injuries not only for the school children but also for the community at large. PMID- 29026747 TI - Acanthosis nigricans: A screening test for insulin resistance - An important risk factor for diabetes mellitus type-2. AB - BACKGROUND: Acanthosis nigricans (AN) is one of the signs suggestive of high insulin resistance (IR). IR is one of the mechanisms involved in pathogenesis of diabetes mellitus type-2 (DM Type-2). Thus, early detection of IR in children may allow us time to intervene well before the development of DM Type-2. In this study, 62% of children having AN had high IR. In children having both, AN and high body mass index (BMI), the incidence of IR was about 80%. This suggests that these easily detectable parameters alone can be useful in screening children at high risk of developing DM Type-2 in future. These simple criteria thus hold promise for use in high throughput screening programs for diabetes. CONTEXT: A pilot study conducted by the authors showed that children with AN have a high incidence of IR. The detection of IR in children may allow us time to intervene well before the development of DM Type-2. Detection of DM Type-2 by hyperglycemia may be too late to prevent the onset of microvascular changes. AIMS: This study aims to determine whether easily observable presence of AN can be used to screen for increased IR in children, and thereby to detect this important risk factor for DM Type-2. SETTINGS AND DESIGN: Cross-sectional, observational study. Two schools, one with children belonging to average economic background and the other, a residential school with children of affluent parents. Selection of children was done randomly. SUBJECTS AND METHODS: The study was conducted among 507 children in the age group of 10-18 years. Physical examination for the detection of AN, height and weight measurements, waist circumference, fasting plasma glucose, fasting plasma insulin, and lipid profile was done. Homeostatic model assessment of insulin resistance was calculated. STATISTICAL ANALYSIS USED: Data analysis was performed using descriptive statistics and inferential statistical methods. The association between categorical variables was done by Chi-square test. RESULTS: The presence of AN positively correlated with high IR, and when combined with increased BMI, the incidence rate of IR is 80%. CONCLUSIONS: AN can be used as a screening method to identify children at risk of DM Type-2-since those who have high IR have a high possibility of having DM Type 2 in future. Hence, early screening and simple, but effective interventional strategies can be instituted at this age, which may prevent or delay diabetes in the long run. PMID- 29026748 TI - Knowledge and awareness regarding menstruation and HIV/AIDS among schoolgoing adolescent girls. AB - INTRODUCTION: Menstruation in our country is associated with various myths and restrictions leading to lack of awareness among adolescent girls. Insufficient menstrual hygiene practices are the cause of stress associated with menstruation and reproductive tract infections. Sexually transmitted infections and HIV/AIDS are not openly discussed in our society making adolescents vulnerable to them. AIM: To assess the knowledge of school going adolescent girls regarding menstrual hygiene and HIV/AIDS. MATERIALS AND METHODS: Girls studying in class 8th-12th standard and who have attained menarche were included in the study. A predesigned questionnaire, which consisted of questions related to menstrual awareness and knowledge about HIV/AIDS was used for data collection. Data was analysed using SPSS software and results were interpreted into percentages. RESULTS: 282 girls took part in the study. Mean age of girls was 14.70 +/- 1.5 years. Median age of girls was 15 years. Knowledge regarding menstrual hygiene and HIV/AIDS was found to be only satisfactory leaving a scope of improvement. Mother was the main source of information regarding both menstruation and HIV/AIDS. CONCLUSION: A comprehensive health education programme involving mothers is required to remove various misconceptions and taboos associated with menstruation and make it a pleasant experience for adolescent girls. Information, education and awareness programmes need to be strengthened to spread awareness regarding HIV/AIDS. PMID- 29026750 TI - Visual impairment among 10-14-year school children in Puducherry: A cross sectional study. AB - INTRODUCTION: According to the 2010 estimates by the World Health Organization, nearly 285 million (4.24% of total population) people of all ages worldwide are visually impaired. Almost 18.9 million children under 15 years of age are visually impaired globally. In developing countries, 7%-31% of childhood blindness and visual impairment is avoidable. MATERIALS AND METHODS: The study was conducted as a cross-sectional study among 1884 school students in Puducherry, in the age group of 10-14 years. A child with presenting maximum vision <=6/12 Snellen equivalent in the better eye is considered visually impaired. Data were entered in Microsoft Excel 2013 and analyzed using the statistical software SPSS version 21.0. Chi-square test was applied for testing difference in proportion and a P < 0.05 was considered statistically significant. RESULTS: The overall prevalence of visual impairment (vision <=6/12) among the study participants was 6.37% (95% confidence interval = 5.27-7.47). The prevalence of visual impairment increased with age and it was found to be high among male students (6.6%) when compared to female students (6%). Presenting vision of 6/6 was observed in 79.8% of the children while with pinhole correction, the proportion increased to 94.6%. CONCLUSION: The prevalence of visual impairment in our study population was found to be 6.37% and the prevalence was even higher among children who belonged to schools of urban region or private schools. Children with a positive family history of spectacle use were more likely to have visual impairment. PMID- 29026749 TI - Implementation of a Schedule II patient agreement for opioids and stimulants in an adult primary care practice. AB - BACKGROUND: The consumption of controlled substances in North Carolina and the nation has created a health crisis with epidemic levels of medication diversion, abuse, overdose and death. Primary care providers are the principal prescribers of controlled substances and at greatest risk of encountering patients that abuse medications. Guidelines recommend patient agreements with monitoring requirements when prescribing opioids and stimulants. Studies have focused on opioids and excluded stimulants. Adherence to recommended monitoring requirements has not been fully evaluated. METHODOLOGY: This was a quality improvement project using the Plan-Do-Check-Act procedure. The following outcome measures were evaluated: signed agreement on file, prescription monitoring program (pmp) checks, urine screens, and prescriptions written without a mandatory visit. IMPLEMENTATION: Who: patients aged 19 and over prescribed a long-term Schedule II medication for the chronic conditions of pain and/or attention deficit hyperactivity disorder. What: implemented a patient agreement and measured fidelity to components of the agreement. When: seven months pre- to seven months post-implementation. Where: in an adult primary care practice with approximately 2,500 patients. How: an agreement was implemented with monthly feedback provided. RESULTS: Post implementation, 94% of patients meeting criteria had a signed agreement in their medical record. Adherence to urine screening improved from 5.3% to 71.1%. Guideline adherence to pmp checks improved from 11.3% to 99.0%. Guideline deviation for prescriptions written without a visit improved from 20.6% to 0%. All improvements were statistically significant (P < .001). CONCLUSION: A Schedule II controlled substance patient agreement was successfully implemented in a primary care practice reducing risk for both the patient and provider. PMID- 29026751 TI - Association of thyroid peroxidase antibody and dyslipidemia in subclinical hypothyroidism. AB - CONTEXT: Subclinical hypothyroidism (SCH) is stated as mild thyroid failure, is more common as compared to overt hypothyroidism, is associated with different biochemical abnormalities such as dyslipidemia, and is also having high conversion rate into overt hypothyroidism in patients having thyroid peroxidase (TPO) antibody positive. Lipid abnormalities are controversial in SCH and there is lack of Indian studies showing correlation between lipid abnormalities and TPO positivity in SCH. Hence, we did this study to find the TPO positivity and associated dyslipidemia in SCH patients. MATERIALS AND METHODS: It was a prospective observational study from January 2015 to December 2015 including fifty adult diagnosed SCH patients presented in outpatient department of Sri Balaji Action Medical Institute, Paschim Vihar, New Delhi. TPO positivity and different lipid abnormalities were studied in those fifty diagnosed SCH patients, and finally, association between TPO antibody and dyslipidemia was calculated. RESULTS: Females were predominant (86%). TPO was positive in 56% SCH patients. Dyslipidemia was found in 100% of SCH patients with positive TPO antibody. In overall, TPO positive patients as well as TPO positive females, total cholesterol, triglyceride, and low-density lipoprotein were significantly high while high-density lipoprotein was insignificant. In males, no significant association was found. CONCLUSION: In SCH patients, dyslipidemia is significantly associated with TPO positivity, especially in females. Hence, early screening, diagnosis, and treatment of SCH patients are recommended to prevent further risks. PMID- 29026752 TI - HWA: Hypoferritinemia without anemia a hidden hematology disorder. AB - INTRODUCTION: Anemia is a condition, in which the number of red blood cells (RBC) and the hemoglobin (Hb) is insufficient to meet the body's physiologic needs. Hypoferritinemia without anemia (HWA) could cause masked clinical manifestations as general weakness, easy fatigability, depressed mode, and hair loss but with normal complete blood count (CBC) parameters. HWA is deferent from iron deficiency anemia (IDA) because there is no reduction in the RBC, Hb, or any of the other parameters of the CBC. In HWA, the hypoferritinemia could be missed because serum ferritin not always requested by general practitioners. MATERIALS AND METHODS: A retrospective study conducted on 6993 patients of hypoferritinemia patients from our computerized database from 2010 to 2016. The parameters investigated to detect HWA disorder were serum ferritin, RBC, Hb, hematocrit, mean corpuscular volume, and mean corpuscular hemoglobin. RESULTS: HWA is found in 130 (0.018%) hypoferritinemia patients, in a ratio 1.7-1 females to male. CONCLUSION: HWA is a masked hematology disorder which needs new nomenclature to distinguish it from IDA because they are two deferent disorders although both of them have low serum ferritin. HWA is not a latent IDA because it could happen in patients whom will not get anemia as in polycythemia patients on recurrent veinesection treatement. PMID- 29026753 TI - Does violence affect the use of contraception? Identifying the hidden factors from rural India. AB - PURPOSE: The objective of this study is to investigates the relationship between domestic violence and use of contraception among married women in rural India. DATA: Third round of National Family Health Survey (NFHS-III). METHODOLOGY: Cross tabulation as bivariate analysis and Binary Logistic Regression as multivariate analysis has been employed to fulfill the objective. FINDINGS: The result shows that there are several hidden factors. between physical violence and contraception use. Alternate explanatory variables are significantly affected the use of contraception. With physical violence which reflects that there is a relationship between physical violence and socioeconomic status such as education, awareness, empowerment of women and subsequently the use of contraception. ORIGINALITY/VALUE: The paper throws light on the hidden factors which are obstacle in use of contraception with physical violence. Results of this study have potentially important implications for programs aimed at preventing violence and promoting family planning programs. PMID- 29026754 TI - Medication discrepancies and potentially inadequate prescriptions in elderly adults with polypharmacy in ambulatory care. AB - OBJECTIVES: The objective of this study is to describe the frequency and type of medication discrepancies (MD) through medication reconciliation and to describe the frequency of potentially inadequate prescription (PIP) medications using screening tool of older persons' prescriptions criteria. DESIGN: Cross-sectional comparison of electronic medical record (EMR) medication lists and patient's self report of their comprehensive medication histories obtained through telephone interviews. INCLUSION CRITERIA: Elderly individuals (>65 years old) with more than ten medications recorded in their EMR, who had not been hospitalized in the past year and were not under domiciliary care, affiliated to a private community hospital. OUTCOME MEASURES: The primary outcomes were the proportion of patients with MD and PIP. Secondary outcomes were the proportion of types of discrepancies and PIP. We analyzed possible associations between these variables and other demographic and clinical variables. RESULTS: Out of 214 randomly selected individuals, 150 accepted to participate (70%). The mean number of medications referred to be consumed by patients was 9.1 (95% confidence interval [CI] =8.6 9.6), and the mean number of prescribed medications in their EMR was 13.9 (95% CI = 13.3-14.5). Ninety-nine percent had at least one discrepancy (total 1252 discrepancies); 46% consumed at least one prescription not documented in their EMR and 93% did not consume at least one of the prescriptions documented in their EMR. In 77% of the patients, a PIP was detected (total 186), 87% of them were at least within one of the following categories: Prolonged used of benzodiazepines or proton pump inhibitors and the use of aspirin for the primary prevention of cardiovascular disease. CONCLUSIONS: There was a high prevalence of MD and PIP within the community of elderly adults affiliated to a Private University Hospital. Future interventions should be aimed at reducing the number of PIP to prevent adverse drug events and improve EMR accuracy by lowering medications discrepancies. PMID- 29026755 TI - Attitude toward learning of community medicine: A cross-sectional study among medical school students. AB - BACKGROUND: Community medicine strives to protect and promote the health and well being of the community through primary health care approach. However the preference of community medicine as career among medical school students and curriculum of community medicine is pivotal. AIM: The study intended to find the attitude towards learning of community medicine and also to assess the preference of post graduation specialty among medical school students. MATERIALS AND METHODS: A cross sectional study conducted at a teaching hospital located in Tamil Nadu, South India. The study questionnaire was administered to a total of 500 study participants and the data collected were analyzed using SPSS IBM version 21.0. RESULTS: Almost 97% were of the opinion that community medicine subject is mandatory. Eighty three percent were interested in learning the principles. Only 21.8% students wanted to pursue post graduation in community medicine. Lack of attraction in terms of scientific technical interest, workplace conditions, and research potential has been reported for being not interested. CONCLUSION: Majority enjoyed to learn principles of community medicine at undergraduate curriculum but only few preferred to opt community medicine as post graduate specialty. Therefore there is a room to influence the medical students positively towards learning community medicine in curriculum. PMID- 29026756 TI - Gynecological complaints and their associated factors among women in a family health-care clinic. AB - AIM: The aim of this study was to describe the most common gynecological complaints and possible associated factors among women of reproductive age attended at a family health-care clinic. METHODOLOGY: A transversal study conducted with a sample of an outpatient population consisting of women of reproductive age. Pregnant women and minors were excluded. The final sample consisted of women between 18 and 49 years of age. The participants answered a questionnaire in which the complaints of the last 4 weeks were registered. They were examined, had the vaginal pH assessed, and secretion was tested using a 10% potassium hydroxide solution to verify the presence of amine odor (whiff test). RESULTS: Most participants were black or of mixed races. Considering the frequency of complaints, there were no significant differences between white and nonwhite women. There was an association between vaginal pH and discharge complaints as well as unpleasant odor, positive test of amines, smoking, and performing vaginal douches. CONCLUSIONS: Vaginal complaints were common among participants; the practice of vaginal douches was also frequent and was associated with higher pH values. The use of hormonal contraceptives was associated with lower pH values. There was no significant association between condom use and gynecological complaints, vaginal pH, or the whiff test. PMID- 29026757 TI - Socio-clinical profile of married women with history of induced abortion: A community-based cross-sectional study in a rural area. AB - BACKGROUND: Induced abortion contributes significantly to maternal mortality in developing countries yet women still seek repeat induced abortion in spite of the availability of contraceptive services. OBJECTIVES: (1) To study the sociodemographic profile of abortion seekers. (2) To study the reasons for procuring abortions by married women of reproductive age group. MATERIALS AND METHODS: It was a cross-sectional community-based study. All the married women of reproductive age group (15-49 years) with a history of induced abortion were selected as the subjects. RESULTS: The most common reason for seeking an abortion was poverty (39.4%), followed by girl child and husband's insistence, which accounted for 17.2% each. More complications were noted in women undergoing an abortion in places other than government hospitals and also who did it in the second trimester. CONCLUSIONS: To reduce maternal deaths from unsafe abortion, several broad activities require strengthening such as decreasing unwanted pregnancies, increasing geographic accessibility and affordability, upgrading facilities that offers medical termination of pregnancy (MTP) services, increasing awareness among the reproductive age about the legal and safe abortion facilities, the consequences of unsafe abortion, ensuring appropriate referral facilities, increasing access to safe abortion services and increasing the quality of abortion care, including postabortion care. PMID- 29026758 TI - Impact of school health education program on personal hygiene among school children of Lucknow district. AB - BACKGROUND: Personal hygiene plays a major role to promote healthy life. This study was performed to assess the current level of knowledge and practicing behavior in regard to hand washing, bathing, tooth brushing, and taking care of nail and hair. MATERIALS AND METHODS: A cross-sectional descriptive study was conducted on 800 students of Lucknow district. All the students were interviewed with a structured questionnaire (pretest). A visual display of good and bad personal hygiene was shown on projector and explained the benefits of good personal hygiene behavior. Again, structured questionnaire was given (posttest). RESULTS: Most of the students belonged to the 10-12 years age group. The knowledge of the students regarding general body cleanliness was 87.5% in posttest as compared to 53.8% in pretest. Keeping the hair well-trimmed was considered as a part of personal hygiene by 38.0% of students. Knowledge about eating less food in diarrhea was positive in 80% of students. Only 12.5% of students accepted that diarrhea can kill children (pretest) while 100% (posttest) children were aware of this fact. Practice regarding change of clothes was on alternate day in 79.5% of students. Most of the students were found washing their hair once a week (72.5%) and 70% students were washing hands before meal. CONCLUSION: Overall trend of knowledge and practice about personal hygiene was in poor condition among students at the time of pretest. Posttest results were highly satisfactory. PMID- 29026759 TI - Quality of life among elderly population residing in urban field practice area of a tertiary care institute of Ahmedabad city, Gujarat. AB - INTRODUCTION: Overall improvement in the living standards of country's population is leading to longer life expectancy. To emphasize the medical and psychological difficulties faced by geriatric people is essential to know status of their quality of life (QOL). METHODOLOGY: A community-based cross-sectional study was carried out at urban field practice area of one of the teaching institutes of Ahmedabad, Gujarat. Considering the prevalence of about 7.5% of 60 years and above people sample size of 250 was calculated. A predesigned questionnaire related to the QOL of elderly people devised by the World Health Organization-QOL was used. RESULTS: Mean age of the study population was 65.8 years with standard deviation of 5 years. Almost two-thirds of geriatrics were currently married and having spouse alive. List of common morbidities observed among study population was joint pain (42.8%), cataract (32.8%), hypertension (22.4%), diabetes mellitus (17.2%), and dental problems (12.4%). Scoring of QOL profile revealed that none of the geriatric had poor QOL, whereas 56% fall into category "good" and 50.8% had "excellent" QOL. QOL as per four different domains was significantly better among males as compared to females. Physical, environmental, and psychological domains were better in those who were educated and married individuals living with their spouse. CONCLUSION: Overall QOL was good to excellent. Social characteristics, such as education, marital status, and gender, all play role for the perceived QOL among the respondents. PMID- 29026760 TI - Etiological and clinicopathological study of secondary small vessel vasculitis in elderly: A case series of 12 patients. AB - BACKGROUND: Inflammation involving the postcapillary venular wall is defined as small vessel vasculitis. Small vessel vasculitis has various clinical manifestations. Etiologically, it can be primary or secondary. Literature regarding secondary vasculitis in elderly is scanty. AIM AND OBJECTIVES: In this case series, we aimed to assess the clinical features and etiologies of biopsy proven secondary small vessel vasculitis in the elderly. METHODOLOGY: Twelve elderly patients with biopsy-proven small vessel vasculitis were included in this study. All patients were thoroughly evaluated to assess the etiology and presence of major organ involvement. RESULTS: Secondary small vessel vasculitis involved both the sexes equally. Constitutional symptoms including fever and weight loss were noticed by most of the (70%) patients. Neurological deficits were present in 83% of the study population. The most common finding in an electromyographic examination was an asymmetric sensory motor distal predominant polyradiculopathy. Fifty percent of the patients did fulfill the criteria for a definite autoimmune disease. More than 30% of the vasculitis was secondary to malignancies. CONCLUSIONS: Neurological manifestations are the most common systemic involvement in elderly patients with secondary vasculitis. Meticulous search for underlying malignancies is mandatory in elderly patients with secondary small vessel vasculitis. PMID- 29026761 TI - Postherpetic neuralgia, diabetic neuropathy, and trigeminal neuralgia - Chronic peripheral neuropathic pain in 58,480 rural Italian primary care patients. AB - INTRODUCTION: Chronic peripheral neuropathic pain (CPNP) is a condition due to peripheral nervous system diseases or injury, but its prevalence is unknown in Italian primary care. AIM: The aim of this study is to assess the prevalence of CPNP in a rural primary care area in Northern Italy. MATERIALS AND METHODS: A multicenter audit study was carried out in a rural area in Northern Italy with 113 participating general practitioners (GPs) seeing 58,480 patients >18 years during 3 months. Patients who for any reason attended GPs' surgeries and had symptoms suggestive of neuropathic pain (NP) were given the NP diagnostic questionnaire "Douleur Neuropathique en 4 Questions" (DN4) and recorded their pain level on a visual analog scale (VAS). RESULTS: Chronic NP was established by a DN4 score of >=4 and a VAS pain score of >=40 mm for >6 months together with a clinical diagnosis in 448 (254 women and 194 men) out of 58,480 patients giving a prevalence of 0.77%. 179 patients (0.31%) had diabetes neuropathy, 142 (0.24%) had postherpetic pain, 41 (0.07%) had trigeminal neuralgia, 27 (0.05%) had NP postinjury, 27 (0.05%) had NP caused by nerve entrapments, 11 (0.02%) had NP triggered by systemic diseases, and 21 (0.04%) had NP of unknown etiology. CONCLUSIONS: The prevalence of CPNP in this population of primary care attenders in a rural area in Northern Italy was 0.77%. Diabetes neuropathy (0.31%) and postherpetic pain (0.24%) were the two most common subgroups of NP, followed by trigeminal neuralgia (0.07%). PMID- 29026762 TI - Correlation of Vitamin D with metabolic parameters in polycystic ovarian syndrome. AB - BACKGROUND: Polycystic ovarian syndrome (PCOS) and hypovitaminosis D are the two most common endocrine disorders in young women leading to many adverse metabolic consequences. We evaluated the correlation of 25-hydroxy Vitamin D (25OHD) with metabolic parameters and insulin resistance in PCOS. MATERIALS AND METHODS: We included 100 PCOS patients (age 18-40 years, duration >6 months) serially, in this cross-sectional study. We excluded patients with past use of insulin sensitizers and hormone therapy. All patients underwent a physical examination, body fat estimation, and a single fasting blood sample was analyzed for the biochemical parameters. The patients were divided into 2 groups as per the 25OHD level: Group 1 (Deficient, <30 ng/mL) and Group 2 (normal). The data were analyzed using appropriate statistical methods, and a P < 0.05 was considered statistically significant. RESULTS: The study population had a mean age of 28.6 +/- 6.3 years, body mass index (BMI) 30.4 +/- 6.1 kg/m2 and body fat of 39.1 +/- 13%. A total of 90 women had 25OHD deficiency, and hypovitaminosis D was observed more in younger, obese patients. Patients with hypovitaminosis D had a higher BMI (P = 0.0124), low- high-density lipoprotein (P = 0.0094), calcium (P <= 0.0001), and elevated testosterone (P = 0.0412) in comparison with normal 25OHD patients. None of the metabolic parameters showed significant correlation with 25OHD (P > 0.05). CONCLUSION: Hypovitaminosis D is very common in PCOS patients and exacerbates the metabolic abnormalities. It is essential to screen all the PCOS patients for 25OHD deficiency, and further large-scale studies are required to confirm our findings. PMID- 29026763 TI - Comparative evaluation of Indian Diabetes Risk Score and Finnish Diabetes Risk Score for predicting risk of diabetes mellitus type II: A teaching hospital-based survey in Maharashtra. AB - CONTEXT: India is currently becoming capital for diabetes mellitus. This significantly increasing incidence of diabetes putting an additional burden on health care in India. Unfortunately, half of diabetic individuals are unknown about their diabetic status. Hence, there is an emergent need of effective screening instrument to identify "diabetes risk" individuals. AIMS: The aim is to evaluate and compare the diagnostic accuracy and clinical utility of Indian Diabetes Risk Score (IDRS) and Finnish Diabetes Risk Score (FINDRISC). SETTINGS AND DESIGN: This is retrospective, record-based study of diabetes detection camp organized by a teaching hospital. Out of 780 people attended this camp voluntarily only 763 fulfilled inclusion criteria of the study. SUBJECTS AND METHODS: In this camp, pro forma included the World Health Organization STEP guidelines for surveillance of noncommunicable diseases. Included primary sociodemographic characters, physical measurements, and clinical examination. After that followed the random blood glucose estimation of each individual. STATISTICAL ANALYSIS USED: Diagnostic accuracy of IDRS and FINDRISC compared by using receiver operative characteristic curve (ROC). Sensitivity, specificity, likelihood ratio, positive predictive and negative predictive values were compared. Clinical utility index (CUI) of each score also compared. SPSS version 22, Stata 13, R3.2.9 used. RESULTS: Out of 763 individuals, 38 were new diabetics. By IDRS 347 and by FINDRISC 96 people were included in high-risk category for diabetes. Odds ratio for high-risk people in FINDRISC for getting affected by diabetes was 10.70. Similarly, it was 4.79 for IDRS. Area under curves of ROCs of both scores were indifferent (P = 0.98). Sensitivity and specificity of IDRS was 78.95% and 56.14%; whereas for FINDRISC it was 55.26% and 89.66%, respectively. CUI was excellent (0.86) for FINDRISC while IDRS it was "satisfactory" (0.54). Bland-Altman plot and Cohen's Kappa suggested fair agreement between these score in measuring diabetes risk. CONCLUSIONS: Diagnostic accuracy and clinical utility of FINDRISC is fairly good than IDRS. PMID- 29026764 TI - A case-control study on environmental and biological risk factors for renal calculi persisting in a coastal Union Territory, India. AB - BACKGROUND AND OBJECTIVES: Renal stone disease is a common disorder of the urinary tract and also a significant problem because of incidence, recurrence, and severe consequences. The complex pathogenetic mechanisms of renal stone formation involve both biologic and environmental risk factors. The present study was performed to identify the role of these parameters among renal stone patients and normal individuals from a coastal union territory region in South India. METHODS: The authors conducted a case-control study of renal stone disease among outpatient department patients more than 30 years of age using systematic random sampling procedure with 100 study participants (50 subjects for each group). A questionnaire to explore some relevant history as well as to note general examination findings was used along with a house visit to collect a sample of water. Analysis was undertaken using appropriate statistical techniques. RESULTS: The study showed statistically significant association for renal stones with female sex, illiteracy, body mass index (BMI) (>25 kg/m2), sodium (>50 mg/L), water consumption (<1.5 L/day), water source being borewell, consuming soft drink, sedentary work, and family history of renal stones. The adjusted odds ratios (ORs) were significantly higher for consuming soft drink (OR: 8.19; 95% confidence interval: 1.99-33.69), sedentary work (10.01; 1.27-78.91), and water consumption < 1.5 L/day (7.73; 2.24-26.69). INTERPRETATION AND CONCLUSIONS: We conclude that in this part of India, female gender, illiteracy, high BMI, high sodium in drinking water, inadequate water consumption, borewell drinking water, soft-drink consumption, sedentary work, and family history of renal stones can lead to a significant increase in the risk of renal stone disease. PMID- 29026765 TI - Screening antenatal anxiety: Predicting its effect on fetal growth. AB - CONTEXT: Maternal anxiety has an association with low birth weight. However, studies are scarce to determine any association between maternal anxiety and fetal growth. AIMS: This study aims to determine the effect of maternal anxiety on fetal growth, measured by gestational age-dependent increase in fetal abdominal circumference (AC). The secondary objective is to determine the effect of maternal anxiety on other fetal parameters (biparietal diameter [BPD], head circumference [HC], femur length [FL]). SETTINGS AND DESIGN: This cross-sectional study was conducted in a tertiary care hospital, Kolkata. MATERIALS AND METHODS: Four hundred and ten pregnant mothers, between 14 and 40 weeks of gestation, were interviewed with socioeconomic and obstetric profile questionnaire and examined for anthropometric profile and presence and severity of pallor. Anxiety was assessed using Generalized Anxiety Disorder-7 (GAD) questionnaire. HC, AC, BPD, and FL were measured by ultrasound biometry. ANALYSIS USED: A multivariable logistic regression analysis was done to determine the predictors of small-for gestational-age (SGA). A robust mediation analysis was done to determine mediating effect of anxiety on gestational age-dependent increase in fetal AC. RESULTS: Mild (odds ratio [OR]Adjusted = 6.23, [2.41, 16.15]) and moderate (ORAdjusted = 22.42, [5.00, 100.57]) anxiety was significantly associated with SGA fetus. Anxiety increased with the progression of gestation (betaGAD: 0.011 [0.007-0.015]) and it had a negative effect on fetal growth (standardized indirect effect of gestational age-mediated by anxiety on AC: -0.037 [-0.059, 0.022]). Anxiety also attenuated gestational age-dependent increment of HC. CONCLUSION: Mother's anxiety has a gestational age-dependent temporally incremental negative effect on fetal growth and brain development. PMID- 29026767 TI - Socioeconomic determinants affecting the quality of life among diabetic and hypertensive patients in a rural area, Egypt. AB - BACKGROUND: Diabetes mellitus and hypertension have a high prevalence of growth in all countries threatening to become a global epidemic risk, thus the quality of life this category of patients is extremely important. The aim of this study was to assess the socioeconomic determinants affecting the quality of life among diabetic and hypertensive patients. PATIENT AND METHODS: A descriptive cross sectional study was conducted in a rural family health care center in El-Batanon village, in the delta region of Menoufia, Egypt. The recruited sample population was 401 participants over six month's context time frame (diabetic and hypertensive participants were 224 and 117 respectively). All participants were interviewed using a questionnaire to assess the demographic characteristics, socioeconomic status, type, duration and treatments of illness and the 36-Item Short Form Health Survey. RESULTS: Patients with Diabetes presented a poorer health related quality of life than those with hypertension in perceived health in the areas of role-physical (RP) (P < 0.05), bodily pain (BP) (P < 0.001), general health (GH) (P < 0.05), vitality (VT) (P < 0.05), social functioning (SF) (P < 0.001) and role-emotional (RE) (P < 0.001). Age, Sex, Family size, socioeconomic score and occupation were the main Socioeconomic Determinants affecting the quality of life among diabetic and hypertensive patients. CONCLUSION: Diabetes and hypertension seem to comparably impair the health related quality of life. There is a need to develop and implement effective targeted intervention to help the patients to cope with their life in a better way. PMID- 29026766 TI - Hand hygiene knowledge of primary health care workers in Abha city, South Western Saudi Arabia. AB - PURPOSE: The aim of this is to find out the hand hygiene (HH) knowledge among primary health care workers (PHCWs) in Abha health district, southwestern Saudi Arabia. METHODS: Data were collected through an anonymous self-administered questionnaire. The questionnaire was based on a WHO "Knowledge Questionnaire for Health Care Workers." RESULTS: The study included 478 PHCWs (239 males and 239 females). The sample included 186 physicians, 212 nurses, and 80 technicians. The highest proportion receiving formal training was nurses (82.1%). Females (77.4%) received significantly more training than males (70.3%). Only 59.2% (283) of the HCWs properly identified unclean hands of HCWs as the main route of the cross. Only 26.4% (126) of the HCWs properly identified germs already present on or within the patient as the most frequent source of pathogens in a health-care facility. Only 54.8% (262) of HCWs properly identified 20 s as the minimal time needed for alcohol-based hand rub to kill most germs on hands. CONCLUSION: The study revealed gaps in the knowledge regarding HH. To promote HH at primary health care setting, WHO bundle of multimodal strategies should be adopted including system change; training/education; evaluation and feedback; reminders in the workplace; and institutional safety climate. PMID- 29026768 TI - Macroglossia as a presenting feature of multiple myeloma. AB - Macroglossia has been very rarely reported as a first clinical sign of multiple myeloma. PMID- 29026769 TI - Increasing awareness of physicians against severe leptospirosis: A treatable but potentially fatal zoonotic infection. AB - Leptospirosis is a worldwide, often severe and potentially fatal zoonotic infection. Here, we present the case of a 35-year-old man with severe leptospirosis infection that was identified early and was treated effectively, with a quite impressive complete recovery. Delaying of early diagnosis and treatment is crucial for the development of an unfavorable clinical course and increases the risk of a lethal outcome. PMID- 29026770 TI - Coxsackie encephalitis in a child in Western India. AB - Enteroviral encephalitis in children has been rarely described from Western India. We describe a 51/2-year-old child with Coxsackie encephalitis. PMID- 29026771 TI - Aortoarteritis with tuberculosis. AB - Aortoarteritis is an inflammatory condition of the aorta, which has been rarely reported due to tuberculous infection. We report two cases of children who had aortoarteritis along with tuberculosis (TB), of which one had collapse consolidation and the other had latent TB. Both patients were treated with anti TB therapy and steroids. PMID- 29026772 TI - Lateral medullary syndrome after a scorpion sting. AB - Scorpion bites are a common problem in Southern parts of India. The sting of Mesobuthus tamulus belonging to the Buthidae family is known for being fatal. The toxidrome of scorpion sting is known for its effect on the cardiovascular system, and there have been rare reports of cerebrovascular accidents as well. We describe a case of lateral medullary syndrome secondary to scorpion sting. As per the knowledge of the authors, this is the first case report of the same. PMID- 29026773 TI - Neuroleptic malignant syndrome in a patient with stable dose of olanzapine. AB - Neuroleptic malignant syndrome (NMS), a potentially fatal consequence due to typical neuroleptics, has been described so far. In the past few years, there has been increased use of atypical antipsychotic drugs. Cases of NMS related to atypical neuroleptics, such as olanzapine, are less common in spite of increasing cases reported in literatures. Here, we report a case of NMS in a patient with bipolar affective disorder on maintenance treatment with 5 mg olanzapine for the last 7 year. He was successfully treated with bromocriptine and discharged in stable condition in 10 days. PMID- 29026774 TI - Atypical Kleine-Levin syndrome: An elusive entity? AB - Kleine-Levin syndrome (KLS) is a rare disorder (around 1.5 cases per million population), often presenting with triad of recurrent episodes of hypersomnia, hyperphagia, and hypersexuality. However, cases of atypical KLS with features opposite to that being commonly reported are often misdiagnosed as psychosis and present as a diagnostic challenge for the physicians, psychiatrists, and neurologists. We describe a case of atypical KLS which was misdiagnosed as unspecified nonorganic psychosis previously, highlighting the various points which would be helpful in identifying and diagnosing cases of atypical KLS in future. PMID- 29026775 TI - Hydatid disease: A rare cause of fracture nonunion. AB - Hydatid disease is an infrequent parasitic infestation caused by cestode, most commonly, Echinococcus granulosus. Bone involvement is distinctly uncommon. We would like to share our experience of a rare case of hydatid disease of femur in a 24-year-old male who presented with nonunion of subtrochanteric fracture. Histopathology showed typical lamellated wall and dagger-shaped hooklets. In view of its rarity, hydatid disease often remains an unsuspected infection of the bone. PMID- 29026776 TI - Antiepileptic therapy, osteomalacia, and synchronous fractures: Don't lose looser zones. PMID- 29026777 TI - Universal health coverage - There is more to it than meets the eye. PMID- 29026778 TI - Methods for estimating medication adherence to antiretroviral therapy: Response to Mehta et al. (2016). PMID- 29026779 TI - Oral rehydration solution in infantile diarrhea: Make sure it is given properly! PMID- 29026780 TI - Status of Iran's Primary Health Care System in Terms of Health Systems Control Knobs: A Review Article. AB - BACKGROUND: After the establishment of Primary Health Care (PHC) program in Iran, health indicators have improved every year. This progress was so rapid that a number of shortcomings and weaknesses of the PHC program remained silent behind its successes. This study aimed to assess the status of Iran's PHC system (strengths, weaknesses, opportunities and threats) in terms of health system's control knobs. METHODS: The search was conducted through two English 'databases of Web of Knowledge and PubMed, two English publications of Science Direct and Springer and two Persian databases of Magiran and SID. Keywords were selected from MeSH and included primary health care, PHC and Iran in both Persian and English. No time limit was considered. RESULTS: Iran's PHC system has numerous successes in dealing with health system's control knobs; which largely part of that related to the health network implementation, the role of Behvarz, improvement of health indicators in rural areas and the elimination of urban rural inequality, but there are some weaknesses, opportunities and threats in the Iranian PHC system as well. CONCLUSION: By considering socio-economic changes the current structure of PHC system needs to be reformed to coordinate with phenomenon of chronic diseases, accidents and aging. The current information system in PHC does not provide the required information for decision makers and policy makers so it needs to be transformed to the electronic system with unique electronic health file for individuals. PMID- 29026781 TI - Bulge Region as a Putative Hair Follicle Stem Cells Niche: A Brief Review. AB - BACKGROUND: Hair follicle stem cells exist in different sites. Most of the hair follicle stem cells are reside in niche called bulge. Bulge region is located between the opening of sebaceous gland and the attachment site of the arrector pili muscle. METHODS: Data were collected using databases and resources of PubMed, Web of Science, Science Direct, Scopus, MEDLINE and their references from the earliest available published to identify English observational studies on hair follicle bulge region. RESULTS: Bulge stem cells are pluripotent with high proliferative capacity. Specific markers allow the bulge cells to be isolated from mouse or human hair follicle. Stem cells isolated from bulge region are label retaining and slow cycling hence these cells are defined as label-retaining cells. Bulge cell populations, due to their plasticity nature are able to differentiate into distinct linage and could contribute in tissue regeneration. CONCLUSION: The current review discuss about bulge stem cells characteristics and biology including their cycle, location, plasticity, specific markers and regenerative nature. Also the differences between mouse and human hair follicles are investigated. PMID- 29026783 TI - Knowledge and Practice on Malaria among Korean Soldiers in Nearby Demilitarized Zone in South Korea. AB - BACKGROUND: The aim of this study was to provide evidence for developing intervention and effective management for the prevention of malaria based on epidemiological analysis and assessment of Korean soldiers' knowledge on malaria and malaria preventive behavior. METHODS: The data were collected from 294 Korean soldiers nearby the demilitarized zone in Gyeonggi Province in 2016. Multiple regression analyses were applied for statistical analysis. RESULTS: The level of education (beta=.24, P<.001), educational experience on malaria (beta=.21, P<.001) and ranks like corporal (beta=.13, P<.05), and sergeant (beta=.13, P<.05) were observed to be associated with the level of knowledge of malaria (F=9.62, R2=.12, P<.001). Knowledge of malaria (beta=.25, P<.001) and malaria education experience (beta=.22, P<.001) were the factors that influenced malaria prevention behavior and practice (F=12.45, R2=.18, P<.001). CONCLUSION: The level of knowledge and education experience was associated with malaria prevention practice. Therefore, malaria education is very important for the soldiers in nearby DMZ for prevention of malaria. The findings provide implications for the development of intervention programs focusing on increasing the levels of knowledge and practices related to malaria. PMID- 29026782 TI - Bentonite Clay as a Natural Remedy: A Brief Review. AB - BACKGROUND: From old times, the human kind has used clays, externally or internally, for maintaining body health or treating some diseases. Meanwhile there are few scientific articles reviewing the beneficial effects of clays on body function. Bentonite clay is one of the available clays in nature, used as traditional habits, and remedies in many cultures. METHODS: These articles explored among 2500 scientific articles published in PubMed to sort the scientific works have been done on the effects of this clay on body function (it was about 100 articles). RESULTS: Bentonite has a broad range of action on different parts of body. CONCLUSION: As traditional remedies seem to have a deep root in maintaining body health, it merits doing more research works on bentonite clay and its impacts on body function. PMID- 29026784 TI - Effects of Medical Insurance on the Health Status and Life Satisfaction of the Elderly. AB - BACKGROUND: Population aging has become increasingly serious in China. The demand for medical insurance of the elderly is increasing, and their health status and life satisfaction are becoming significant issues. This study investigates the effects of medical insurance on the health status and life satisfaction of the elderly. METHODS: The national baseline survey data of the China Health and Retirement Longitudinal Survey in 2013 were adopted. The Ordered Probit Model was established. The effects of the medical insurance for urban employees, medical insurance for urban residents, and new rural cooperative medical insurance on the health status and life satisfaction of the elderly were investigated. RESULTS: Medical insurance could facilitate the improvement of the health status and life satisfaction of the elderly. Accordingly, the health status and life satisfaction of the elderly who have medical insurance for urban residents improved significantly. The regression coefficients were 0.348 and 0.307. The corresponding regression coefficients of the medical insurance for urban employees were 0.189 and 0.236. The regression coefficients of the new rural cooperative medical insurance were 0.170 and 0.188. CONCLUSION: Medical insurance can significantly improve the health status and life satisfaction of the elderly. This development is of immense significance for the formulation of equal medical security. PMID- 29026785 TI - Evaluation of p16INK4alpha Hypermethylation from Liquid-based Pap Test Samples in Vietnamese Population. AB - BACKGROUND: Human papillomavirus (HPV) infection has been considered as main cause of cervical cancer. Recently, aberrant DNA methylation at tumor suppressor genes (TSGs), leading to inactivation, has also been an early epigenetic event and cofactor in cervical carcinogenesis. This study was performed to evaluate an association between the hypermethylation of p16INK4alpha gene's promoter and HPV exposure in non-invasive samples (liquid-based papanicolaous samples) in Vietnamese population. METHODS: 109 liquid-based papanicolaous test samples were archived and admitted from the Medic Medical Center and Au Lac Clinic Laboratory, Vietnam, from 2011-2014. Methylation-Specific-PCR (MSP) was performed to analyze methylation status from the liquid-based papanicolaous test samples identified whether HPV/or non-HPV, high-risk/low-risk HPV infection. RESULTS: An upward trend was observed concerning the p16INK4alpha hypermethylation frequency in high risk HPV infection, counting for 55.6%, and the low methylation frequency in low risk and non-HPV infected samples, counting for 22.9%, 8.0%, respectively. The significant correlation between candidate p16INK4alpha hypermethylation and HPV exposure was observed (P<0.0001). Moreover, the odds ratio (OR) and relative risk (RR) were found in statistical significant value. (OR=5.76, 95%CI: 2.36 - 14.04, P<0.01; RR=3.11, 95%CI: 1.75-5.53, P<0.01). CONCLUSION: Presence of p16INK4alpha hypermethylation was the specific characteristic of high-risk HPV infected samples in Vietnamese population. The OR and RR values showed that the strong correlation between p16INK4alpha hypermethylation and high-risk HPV infection, in which increased the risk of cervical cancer. The combination of p16INK4alpha hyper-methylation and HPV detection based biomarker could be used in non-invasive samples obtained from high-risk cancer patients, offer significant practical advantages. PMID- 29026786 TI - The Relationship between Type 2 Diabetes and Platelet Indicators. AB - BACKGROUND: Currently, the studies on the relationship between type 2 diabetes and platelets indicators were carried out on a selective small sample population generally. Large sample studies in this area are rare, especially in Chinese population. In this study, we aimed to investigate the relationship between type 2 diabetes and the mean platelet volume (MPV), platelet count (PLT) and platelet distribution width (PDW). METHODS: This is a cross-sectional analysis of the routine health examination data from 20128 participants with complete baseline data in Yinzhou District 2013. The detection of indicators in this study was completed by automatic hematology analyzer. RESULTS: The PDW and PLT were not significantly different between diabetic group and non-diabetic group, (16.00% vs. 16.00%, P=0.88, and 194*109/L vs. 196*109/L, P=0.05 respectively). The MPV was significantly higher in diabetic group (9.3fl vs. 9.2fl, P<0.05). MPV was an independent risk factor of diabetes mellitus (Unadjusted OR=1.07 (95% CI: 1.03, 1.11), Adjusted for age, sex OR=1.07 (95% CI: 1.02, 1.12)). The adjusted odds ratio of diabetes rose with increasing MPV levels and were most pronounced in subjects with MPV levels exceeding the 90th percentile (MPV >=10.70 fl, Crude or=1.23 adjusted or=1.19). CONCLUSION: There was no relationship between the presence of diabetes with PDW and PLT. The MPV was independently associated with the presence of diabetes. PMID- 29026787 TI - Factors Determining Effective Orthokeratology Treatment for Controlling Juvenile Myopia Progression. AB - BACKGROUND: We aimed to identify factors influencing the therapeutic outcome of orthokeratology on controlling juvenile myopia progression, and the risk factors for complications. METHODS: Myopic patients (n=724) in Shenzhen Second Hospital from Jan 2011 to Jan 2016 fitted with orthokeratology lenses and followed-up for 6-65 months were reviewed retrospectively. Univariate and multivariate logistic regression analyses were used to screen for the factors that can improve treatment outcome and prevent the development of complications. RESULTS: Patients where the orthokeratology treatment was effective displayed a shorter myopia time, smaller diopter and corneal curvature, larger corneal endothelium density, high proportion of overnight wear and longer wearing times compared with patients whose treatments were ineffective. Additionally, wearing Ortho-k for 6 or 12 months yielded improved corrective effect and achieved higher comfort level. Logistic regression analyses showed that myopia time, diopter, corneal curvature e value, corneal endothelium density, time with Ortho-k and corrective effect after wearing Ortho-k for 6 or 12 months were all independent factors influencing the treatment effects. Results showed corneal curvature, anterior chamber depth and central corneal thickness were independent risk factors. CONCLUSION: This study systematically identified the factors leading to effective treatments, and those carrying a risk for complications, to provide guidance for the prescription and follow-up of orthokeratology in the treatment of juvenile myopia. PMID- 29026788 TI - Trends in Antimicrobial Prescription for Inpatients in Changsha, China, 2003 to 2014. AB - BACKGROUND: China had implemented policies to limit antimicrobials prescription since 2004; we conducted this study to reflect the effect of these national policies by analyzing antimicrobial prescription trends of medical insurance in patients from 2003 to 2014 in Changsha city, China. METHODS: The participants were inpatients of the medical insurance of urban workers (UEBMI). Data were extracted from medical insurance information system of Changsha Medical Insurance Institution, which directly connects with hospitals information systems. RESULTS: Trend analysis showed great changes in antimicrobial prescription and inpatients' cost on antimicrobials over the study period. Antimicrobial prescription rates gradually declined over the study period from 79.0% in 2003 to 43.5% in 2014 (adjusted OR0.205; 95%CI 0.198 to 0.213). There was a quicker decline from 2011 to 2014 (with implementing national antimicrobial stewardship action plan) than the period from 2003 to 2010 (with implementing antimicrobials use education and self-management strategies). The proportion of inpatients used one antimicrobial increased significantly from 25.6% in 2003 to 46.7% in 2014, while the proportion of inpatients used three or more antimicrobials gradually decreased. Bacterial culture rate increased from 20.4% in 2003 to 36.6% in 2014 (adjusted OR 2.248; 95% CI 2.149 to 2.352). The average costs on antimicrobials decreased significantly, from 277.43 US Dollar in 2003 to 91.05 US Dollar in 2014. CONCLUSION: National efforts to promote rational use of antimicrobials in clinical practice have had a positive effect over the past decade in China. PMID- 29026789 TI - The Impact of the Predictive Nursing Education Process on Degree of Comfort and Quality of Life for Patients in the Oncology Department. AB - BACKGROUND: We investigated the application of a predictive nursing education process on the degree of comfort and quality of life for cancer patients. METHODS: A total of 168-cancer patient in Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China between June 2014 and June 2016 were enrolled and admitted for surgery or radiotherapy/chemotherapy treatment. Patients were randomly divided into control and observation groups, each containing 84 cases. Patients in the control group received routine cancer care, whereas the observation group received care incorporating a predictive nursing education process. Patients were assessed after admission and prior to discharge via the Kolcaba's comfort status scale (through a General Comfort Questionnaire (GCQ)), quality of life scale (QOL), and Barthel Index (BI) for activities of daily living (ADL). Patient mental state was also evaluated using the Hamilton Anxiety Rating Scale (HAMA) and Hamilton Depression Rating Scale (HAMD). RESULTS: GCQ, QOL, and BI scores of the observation group were all significantly higher than those of the control group (P <0.05). HAMA and HAMD scores were significantly lower in the observation group compared to the control group (P < 0.05). CONCLUSION: The predictive nursing education process could significantly improve degree of comfort and activities of daily living for cancer patients, and thus improve mental states and quality of life. PMID- 29026791 TI - Willingness to Pay for Complementary Health Care Insurance in Iran. AB - BACKGROUND: Complementary health insurance is increasingly used to remedy the limitations and shortcomings of the basic health insurance benefit packages. Hence, it is essential to gather reliable information about the amount of Willingness to Pay (WTP) for health insurance. We assessed the WTP for health insurance in Iran in order to suggest an affordable complementary health insurance. METHODS: The study sample consisted of 300 household heads all over provinces of Iran in 2013. The method applied was double bounded dichotomous choice and open-ended question approach of contingent valuation. RESULTS: The average WTP for complementary health insurance per person per month by double bounded dichotomous choice and open-ended question method respectively was 199000 and 115300 Rials (8 and 4.6 USD, respectively). Household's heads with higher levels of income and those who worked had more WTP for the health insurance. Besides, the WTP increased in direct proportion to the number of insured members of each household and in inverse proportion to the family size. CONCLUSION: The WTP value can be used as a premium in a society. As an important finding, the study indicated that the households were willing to pay higher premiums than currently collected for the complementary health insurance coverage in Iran. This offers the policy makers the opportunity to increase the premium and provide good benefits package for insured people of country then better risk pooling. PMID- 29026790 TI - The Prevalence of Hearing Impairment by Age and Gender in a Population-based Study. AB - BACKGROUND: This study aimed to determine the prevalence of hearing impairment (HI) by age and gender in a population aged 5 yr and older residing in Tehran, Iran. METHODS: In this cross-sectional study, 140 clusters each including 10 households from Tehran, Iran were sampled between 2012 and 2013 using cluster random sampling. Trained audiologists examined the participants during face-to face interviews. The hearing of the participants was evaluated before the removal of wax or other foreign bodies. In this study, HI was categorized as mild (grade 1, 26-40 db), moderate (grade 2, 41-60 db), severe (grade 3, 61-80 db), and deaf (grade 5, 81 db or more). All participants signed informed consent forms. The SATA software was used for data analysis. RESULTS: Of 6521 individuals, 4370 (67%) were interviewed. The prevalence of HI (auditory threshold of 0.5, 1, 2, 4 KHz and more than 25 db in the better ear) was 14.27 (11.53-17.91) of whom 9.52 (7.07-11.98) had grade 1, 4.04 (3.02-5.06) had grade 2, 0.67 (0.33-1.02) had grade 3 HI and 0.48 (0.16-0.8) were deaf. About 5.19% of the participants had disabling hearing impairment. All HI grades increased significantly with age but no significant difference was observed between men and women. CONCLUSION: The considerable prevalence of HI in Iran in comparison with other developing countries, with regards to the trend of aging in the population, seems concerning. The results of the study could be used as a treatment and research guideline for future works in the area of policymaking and plan to decrease these disorders. PMID- 29026792 TI - Antiretroviral Drug Resistance Mutations among HIV Treatment Failure Patients in Tehran, Iran. AB - BACKGROUND: This study aimed to determine drug resistance mutations in patients with virological failure and find correlation between HIV drug resistance test and viral load. METHODS: Blood sample was collected from 51 patients who suspicious treatment failure in the center of Imam Khomeini Hospital, Tehran, Iran in 2015. Viral voluntary counseling and testing load test was done and the patients with viral load above 1000 copies choose for detection of drug resistance mutations by genotyping method (29 patients). RESULTS: The majority of patients (82.75) harbored the HIV subtype CRF 35 A-D. The 86.2% patients compromised at least one resistance mutation. The analysis of reverse transcriptase showed M184V (68.9%), T215YISF (44.8%), K103N (27.6%) and the analysis results of protease revealed G73SC (13.8%) and I47VA (6.9%). Eventually, the significant correlation between viral load and drug resistance was found. CONCLUSION: The result of our research stress the significance of recognizing drug resistant on time that prohibits the accumulation of drug resistance mutation and circulates the resistance strain of HIV-1 virus and the importance of national study according to the reliable findings for treatment guidelines. PMID- 29026793 TI - Sexual Function, Mental Well-being and Quality of Life among Kurdish Circumcised Women in Iran. AB - BACKGROUND: Female genital mutilation is an intentional inhumane procedure that threatens girls and women's health. It is especially widespread in developing countries due to cultural, traditional and religious preferences. The aim of the current study was to investigate how circumcision affects women's sexual function. METHODS: This cross-sectional study was conducted in the urban and rural area of Piranshahr County, Iran, in 2015 among convenience samples of 200 women, 15-49 yr old, who were applying to health care centers for receiving routine health care services. Data collection was conducted with the use of a self-administered written questionnaire to assess female sexual function, mental well-being, and quality of life. RESULTS: Significant differences were found between circumcised and non-circumcised women in total score of female sexual function index (FSFI) in domains of desire, arousal, vaginal moisture, orgasm, satisfaction, and pain [(P<0.001), MD(95%CI)=5.64(3.64 to 7.64)] and based on Hotelling's T-square, significant differences were found in dimensions of quality of life and FSFI. CONCLUSION: The revealed sexual dysfunction among mutilated women gives ground to require that public health systems take actions aimed at implementing special sexual education program to improve sexual functions of mutilated women and changing beliefs and social norms in the community level. PMID- 29026794 TI - Nitrite and Nitrate Concentrations in the Drinking Groundwater of Shiraz City, South-central Iran by Statistical Models. AB - BACKGROUND: Nitrite (NO2-) and nitrate (NO3-) contaminations of groundwater are considered as one of the major health challenges in recent decades. This study aimed to evaluate the nitrite and nitrate concentrations in the drinking groundwater of Shiraz, South-central Iran by statistical models. METHODS: From 43 active wells of Shiraz drinking water supplies, 344 samples were collected in the high and low precipitation seasons from 2010 to 2014. Nitrate and nitrite concentrations were tested by a DR6000 spectrophotometer, and the results were analyzed by different software, including SPSS ver. 20, ArcView GIS 9.3. It was done by variable and multivariate regression models. In all tests, the level of significance was set at 5%. RESULTS: Nitrate concentrations in the samples were in the range of 5 to 72 mg/l, and 38 (11%) of the samples had nitrate concentrations above the standard level 10 mg/L as nitrogen. The annual mean concentration of nitrite varied from 0 to 0.025 mg/l. There was an inverse correlation between nitrate and nitrite concentrations and well depths. CONCLUSION: The most important reason for the high concentration of nitrate in Shiraz drinking groundwater supplies were lack of health privacy of wells, the impact of residential construction around drinking water wells, and placement of wells in the direction of groundwater flow. PMID- 29026796 TI - Effects of the CrossFit Exercise Data Analysis on Body Composition and Blood Profiles. PMID- 29026795 TI - The Prevalence of Plasmid-mediated Quinolone Resistance Genes in Escherichia coli Isolated from Hospital Wastewater Sources in Tehran, Iran. AB - BACKGROUND: Considering the importance of hospital wastewaters as potential reservoirs for the dissemination of bacterial pathogens such as Escherichia coli and antibiotic resistance genes in the environment, the need for such information becomes imperative. METHODS: E. coli strains were isolated from hospital wastewater sources in Tehran, Iran, over a 24-month sampling period (Jun 2014- Jun 2016) and identified using standard bacteriological methods. Quinolone resistance among the strains was determined using Kirby-Bauer method and the frequency of plasmid-mediated quinolone resistance genes (qnrA, qnrB, qnrS) was investigated by PCR. RESULTS: In total, 80 E. coli strains were isolated during the study period, of which 51 (63.8%) isolates were resistant to tested antibiotics. Of note, 13 isolates were resistant to all the antibiotics employed. The highest rates of antibiotic resistance were obtained for nalidixic acid (60%), followed by norfloxacin (30%), and ciprofloxacin (25%). Of the 51 quinolone-resistant strains, 24 (47.1%) isolates harbored qnr genes. None of the isolates harboured the qnrA gene, while 11 (45.8%) and 7 (29.2%) isolates contained qnrB and qnrS, respectively. CONCLUSION: Our findings showed high rates of quinolone resistance (63.8%) and qnr genes, underlining the importance of hospital wastewaters as reservoirs for dissemination of potentially pathogenic E. coli and horizontal gene transfer between other waterborne bacterial species. Other possible mechanisms of resistance should also be investigated for better characterization of quinolone-resistant E. coli isolates. PMID- 29026797 TI - The Treated Drug Users in the Slovak Republic. PMID- 29026798 TI - Influence of Youth Baseball Players' Pitches on Range of Motion and Ball Speed. PMID- 29026799 TI - Perceived Health Related Quality of Life Outcomes with Silicosis Patients. PMID- 29026800 TI - Pediculosis in School Sitting: What Is the Role of School Nurses? PMID- 29026801 TI - Suicide: An Un-resolved and Under-recognized Health Problem among People of Ilam Province (The Most Popular Suicide Spot in Iran). PMID- 29026802 TI - Sexual Transmission of Zika Virus: An Assessment of the Evidence. PMID- 29026803 TI - Primary Health Care: An Important Approach for Health Sector, Missed in Iran's Health System Evolution Plan. PMID- 29026805 TI - Editorial. PMID- 29026804 TI - The effect of cardamom supplementation on serum lipids, glycemic indices and blood pressure in overweight and obese pre-diabetic women: a randomized controlled trial. AB - BACKGROUND: Spice consumption helps the treatment of diseases due to their antioxidant and anti-inflammatory contents. Cardamom is one of this spices; therefore, this study is designed to determine the effect of cardamom supplementation on serum lipids, glycemic indices, and blood pressure in pre diabetic women. METHODS: Eighty overweight or obese pre-diabetic women were randomly allocated to two groups. The intervention group received 3 g of green cardamom and the placebo group received 3 g of rusk powder for 2 months. The physical activity level, dietary intake, anthropometric measurements, Blood pressure, fasting blood sugar (FBS), triglyceride (TG), total cholesterol (TC), low density lipoprotein (LDL-C), high density lipoprotein (HDL-C), insulin, body mass index (BMI), insulin resistance, and insulin sensitivity were measured before and after intervention. RESULTS: After intervention, mean TC (p = 0.02) and LDL-C (p = 0.01) significantly decreased and insulin sensitivity (p = 0.03) increased in the cardamom group. In the control group, mean HDL-C (p = 0.02) significantly decreased after the study. We observed no significant decrease in systolic and diastolic blood pressure, glycemic indices, and serum lipids values in the cardamom group compared to the placebo group. CONCLUSIONS: Green cardamom supplementation may have a protective effect on HDL-C level in pre-diabetic subjects. It improves some blood parameters in these subjects; however, its effects are not different from placebo. TRIAL REGISTRATION: Iranian Registry of Clinical Trials, IRCT2014060817254N2. Registered 2 September 2014. PMID- 29026806 TI - A Tale of Two Health-Care Systems: Cost-Utility Analysis of Open Carpal Tunnel Release in Canada and the United States. AB - PURPOSE: Canadian health care is often criticized for extended wait times, whereas the United States suffers from increased costs. The purpose of this pilot study was to determine the cost-utility of open carpal tunnel release in Canada versus the United States. METHODS: A prospective cohort study evaluated patients undergoing open carpal tunnel release at an institution in Canada and the United States. All costs from a societal perspective were captured. Utility was measured using validated health-related quality of life (HRQOL) scales-the EuroQol-5D and the Michigan Hand Outcome Questionnaire. RESULTS: Twenty-one patients at the Canadian site and 8 patients at the US site participated. Mean total costs were US $1581 +/- $1965 and $2179 (range: $1421-$2741) at the Canadian and US sites, respectively. Health-related quality of life demonstrated significant improvements following surgery (P < .05). Patient utilities preoperatively and at 6 weeks and 3 months postoperatively were 0.72 +/- 0.20, 0.86 +/- 0.11, and 0.83 +/- 0.16 at the Canadian site and 0.81 +/- 0.09, 0.86 +/- 0.10, and 0.86 +/- 0.12 at the US site. Improvements in HRQOL directly related to surgery were not significantly different between patients in Canada and the United States. American patients, however, attained improved HRQOL sooner due to shorter wait times (27 +/- 10 vs 214 +/- 119 days; P < .001). The incremental cost-utility of the US system was $7758/quality-adjusted life year gained compared to the Canadian system. Sensitivity analyses confirmed that these results were robust. CONCLUSION: This pilot study suggests that carpal tunnel surgery is more cost effective in the United States due to prolonged wait times in Canada. PMID- 29026807 TI - Airway Management in Pierre Robin Sequence: The Vancouver Classification. AB - BACKGROUND: Pierre Robin sequence (PRS) is a triad of micrognathia, glossoptosis, and respiratory distress. There is no standard clinical classification used in the management of neonatal airway in patients with PRS. The goal of our study was to review the presentation and management of patients with PRS and formulate a clinical grading system and treatment algorithm. METHODS: A 10-year retrospective review of all neonates diagnosed with PRS was performed after obtaining institutional ethics approval. Patients were identified using our cleft lip and palate program database. Inclusion criteria were 2 of the following 3 clinical features-glossoptosis, retrognathia, or airway obstruction. We collected demographic data, clinical information (coexisting airway morbidity, maxillary mandibular discrepancy, type of intervention used, complications, and outcomes (feeding, length of stay, and airway status) during the first year of life. RESULTS: Sixty-three patients met our inclusion criteria. Of these, 55 (87%) had cleft palate and 17 (27%) were syndromic. Forty-eight (76%) patients were managed by prone positioning. Of the 15 surgically managed patients, the initial procedure was floor of mouth release in 7, mandibular distraction osteogenesis (MDO) in 4, and tongue-lip adhesion in 4. Five patients with coexisting airway morbidity needed a second surgery; 2 had MDO and 3 tracheostomies (one patient was later decannulated). Seven (47%) of the surgically managed patients required a gastrostomy tube. CONCLUSION: At present, there is no consensus on neonatal airway management in infants with PRS. From our review of 63 patients with PRS, we hereby propose a simple 4-point classification system and treatment algorithm, based on clinical features. PMID- 29026808 TI - Low-Frequency Ultrasound Debridement in Chronic Wound Healing: A Systematic Review of Current Evidence. AB - Chronic wounds are painful and debilitating to patients, pose a clinical challenge to physicians, and impose financial burden on the health-care system. New treatment options are therefore highly sought after. Ultrasound debridement is a promising technology that functions to disperse bacterial biofilms and stimulate wound healing. In this review, we focus on low-frequency ultrasound (20 60 kHz) and summarize the findings of 25 recent studies examining ultrasound efficacy. Ultrasound debridement appears to be most effective when used 3 times a week and has the potential to decrease exudate and slough, decrease patient pain, disperse biofilms, and increase healing in wounds of various etiology. Although current studies are generally of smaller size, the results are promising and we recommend the testing of low-frequency ultrasound therapy in clinical practice on a larger scale. PMID- 29026809 TI - Spontaneously Resolved Macrocystic Lymphatic Malformations: Predictive Variables and Outcomes. AB - INTRODUCTION: Lymphatic malformations are benign, low-flow vascular malformations that typically present at or near birth. Due to morbidity associated with operative treatment, nonoperative treatment with injection of sclerosant has become the mainstay of therapy. Over the past 15 years, several patients at our centre with macrocystic (>2 cm cyst size) lymphatic malformations have seen their lesions resolve spontaneously while awaiting treatment. In this study, we review features of these patients that may contribute to spontaneous resolution. METHOD: A retrospective chart review was conducted from our Vascular Anomalies Clinic database (1999-2014) of all macrocystic lymphatic malformations; characteristics of patients with spontaneous resolution were reviewed. RESULTS: Of 61 patients with macrocystic lymphatic malformations, 7 cases (11.5%; 4 females, 3 males) resolved spontaneously. Median age at malformation appearance was 2 years (range: 0-6.5 years), with median age at resolution of 4 years (range: 10 months-7 years). Median time from appearance to resolution was 24 months (range: 3-43 months), with a median follow-up time of 4 years (range: 1-15 years). All but 1 case was associated with local or upper respiratory tract infection antecedent to resolution. Six of the 7 lesions were located in the neck. CONCLUSION: Among the cases reviewed, there was a common theme of upper respiratory tract or local infection antecedent to spontaneous lesion resolution. Compared to the literature, our proportion of malformations presenting after birth and the proportion of malformations presenting in the neck region were higher than those of other series. Although side effects associated with treatment are generally mild and/or rare, risks related to sclerotherapy and the accompanying requirement for general anesthesia in pediatric populations nevertheless exist. As the median time from lesion appearance to resolution was 24 months, it may be reasonable to observe these malformations for up to 24 months before proceeding with treatment if the lesion does not impair function and disfigurement is not considerable, particularly if the lesion presents after birth and/or is located in the neck region. PMID- 29026810 TI - The Role of Local Bupivacaine Irrigation in Postoperative Pain Control After Augmentation Mammoplasty: A Systematic Review and Meta-Analysis. AB - BACKGROUND: The objective of this study is to analyze the efficacy of local bupivacaine irrigation after augmentation mammoplasty for the control of postoperative pain. METHODS: A systematic review and meta-analysis was conducted including all randomized controlled trials (RCTs) that compared the irrigation of bupivacaine (+/-ketorolac) versus normal saline or no irrigation for pain control after breast augmentation. The primary outcome was postoperative pain measured by visual analog scale. The study protocol was established a priori according to the recommendations of the Cochrane Collaboration. A bibliographical search was conducted in September 2015 in the following Cochrane Library databases: CENTRAL, MEDLINE, EMBASE, and Scielo. The strategy used for the search was ((augmentation AND ("mammoplasty"[MeSH Terms] OR "mammoplasty")) OR (("breast"[MeSH Terms] OR "breast") AND augmentation)) AND (("pain, postoperative"[MeSH Terms])). RESULTS: Four RCTs with a total of 264 participants were included. Two trials compared bupivacaine alone versus placebo (normal saline or no irrigation) and 3 trials compared bupivacaine plus ketorolac versus placebo. The combined irrigation of bupivacaine and ketorolac showed a clinically significant reduction of pain in the first postoperative hour and on postoperative day 5. The irrigation with bupivacaine compared with placebo significantly reduced pain assessed on postoperative day 4. CONCLUSION: The irrigation of bupivacaine with or without ketorolac was associated with a reduction of postoperative pain compared with control groups for the first 5 postoperative days. Due to the few number of trials included, these results should be correlated further clinically. PMID- 29026811 TI - The Use of Platelet-Rich Plasma for Storage of Surplus Harvested Skin Grafts. AB - BACKGROUND: There is a need for improved methods and storage media to sustain the tissue viability of autologous skin grafts. OBJECTIVE: To compare histological changes in human skin grafts stored in platelet-rich plasma (PRP) with those of grafts stored in saline. METHODS: Eight circular, 3-mm full-thickness skin graft samples were harvested from the abdominal skin of each of 5 patients scheduled to undergo an abdominoplasty procedure. Four of these graft samples were stored in saline, and the other 4 were stored in saline mixed with PRP prepared from the patient's own venous blood. Histological assessment of the microscopic appearance of the samples was performed on days 5, 8, 11, and 14. The integrity of the epidermal-dermal junction, number of keratinocytes with perinuclear halos, collagen organization, and number of fibroblasts per field were assessed. The cellular apoptosis rate was also measured on these same days. RESULTS: On day 5, significant differences were observed microscopically between the PRP- and saline stored grafts (P < .05). The grafts preserved in saline exhibited early marked cellular and nuclear swelling with pleomorphism, as well as early nuclear halo formation. The cell viability rate of the PRP group was significantly higher than that of the saline-stored group on day 8 (P < .05). CONCLUSION: Platelet-rich plasma and its inherent growth factors supported longer graft survival; however, its effect lasted only until day 8. Platelet-rich plasma may be beneficial if grafts need to be stored for delayed application(s). PMID- 29026812 TI - Medical Student Perception of Plastic Surgery and the Impact of Mainstream Media. AB - BACKGROUND: Plastic surgery as a discipline is poorly understood by many, including primary care physicians, nurses, medical students, and the public. These misconceptions affect the specialty in a number of ways, including referral patterns and recruitment of medical students into residency programs. The reason for these commonly held misconceptions has not yet been addressed in the plastic surgery literature. As such, we assessed medical students' knowledge and perceptions of plastic surgery as a discipline and explored factors influencing these opinions. METHODS: To assess medical students' knowledge and perceptions of plastic surgery, we conducted an online survey. A total of 231 medical students responded. Interviews were then conducted with 2 focus groups, in which we explored the survey results and reasons behind these misconceptions. RESULTS: As with previous studies, medical students showed a gap in knowledge with respect to plastic surgery. Although they were generally aware that plastic surgeons perform cosmetic procedures and treat burns, they were largely unaware that plastic surgeons perform hand and craniofacial surgeries. Focus groups revealed that television plays a large role in shaping their ideas of plastic surgery. CONCLUSION: Medical students have a skewed perception of the discipline of plastic surgery, and this is largely influenced by television. Interventions aimed at educating medical students on the matter are recommended, including a greater presence in the preclerkship medical school curriculum. PMID- 29026813 TI - Immediate Nerve Transfer for the Treatment of Peroneal Nerve Palsy Secondary to an Intraneural Ganglion: Case Report and Review. AB - Intraneural ganglion cysts that occur within the common peroneal nerve are a rare cause of foot drop. The current standard of treatment for intraneural ganglion cysts involving the common peroneal nerve involves (1) cyst decompression and (2) ligation of the articular nerve branch to prevent recurrence. Nerve transfers are a time-dependent strategy for recovering ankle dorsiflexion in cases of high peroneal nerve palsy; however, this modality has not been performed for intraneural ganglion cysts involving the common peroneal nerve. We present a case of common peroneal nerve palsy secondary to an intraneural ganglion cyst occurring in a 74-year-old female. The patient presents with a 5-month history of pain in the right common peroneal nerve distribution and foot drop. The patient underwent simultaneous cyst decompression, articular nerve branch ligation, and nerve transfer of the motor branch to the flexor hallucis longus to a motor branch of the anterior tibialis muscle. At final follow-up, the patient demonstrated complete (M4+) return of ankle dorsiflexion, no pain, and no evidence of recurrence and was able to weight bare without the need of orthotic support. Given the minimal donor site morbidity and recovery of ankle dorsiflexion, this report underscores the importance of considering early nerve transfers in cases of high peroneal neuropathy due to an intraneural ganglion cyst. PMID- 29026814 TI - Oral Examination. PMID- 29026815 TI - The Midas Touch: Gold and Its Role in the Global Economy. PMID- 29026817 TI - Comparing the Use of 3D Photogrammetry and Computed Tomography in Assessing the Severity of Single-Suture Nonsyndromic Craniosynostosis. AB - PURPOSE: Single-suture nonsyndromic craniosynostosis is diagnosed using clinical assessment and computed tomography (CT). With increasing awareness of the associated risks of radiation exposure, the use of CT is particularly concerning in patients with craniosynostosis since they are exposed at a younger age and more frequently than the average child. Three-dimensional (3D) photogrammetry is advantageous-it involves no radiation, is conveniently obtainable within clinic, and does not require general anaesthesia. This study aims to assess how 3D photogrammetry compares to CT in the assessment of craniosynostosis severity, to quantify surgical outcomes, and analyze the validity of 3D photogrammetry in craniosynostosis. METHODS: Computed tomography images and 3D photographs of patients who underwent craniosynostosis surgery were assessed and aligned to best fit. The intervening area between the CT and 3D photogrammetry curves at the supraorbital bar (bandeau) level in axial view was calculated. Statistical analysis was performed using Student t test. Ninety-five percent confidence intervals were determined and equivalence margins were applied. RESULTS: In total, 41 pairs of CTs and 3D photographs were analyzed. The 95% confidence interval was 198.16 to 264.18 mm2 and the mean was 231.17 mm2. When comparisons were made in the same bandeau region omitting the temporalis muscle, the 95% confidence interval was 108.94 to 147.38 mm2, and the mean was 128.16 mm2. Although statistically significant difference between the modalities was found, they can be attributable to the dampening effect of soft tissue. CONCLUSION: Within certain error margins, 3D photogrammetry is comparable to CT in assessing the severity of single-suture nonsyndromic craniosynostosis. However, a dampening effect can be attributable to the soft tissue. Three-dimensional photogrammetry may be more applicable for severe cases of craniosynostosis but not milder deformity. It may also be beneficial for assessing the overall appearance and aesthetics but not for determining underlying bony severity. PMID- 29026816 TI - Aesthetic Refinements in Forehead Flap Reconstruction of the Asian Nose. AB - BACKGROUND: Traditional paramedian forehead flap reconstruction exploits the aesthetic subunit principle. Refinements and outcomes of forehead flap nasal reconstruction largely reflect Western experience. Differences in ethnic Asian anatomy and wound healing may foster suboptimal outcomes. We modified methods to address Asian features by extending subunit and flap boundaries, minimizing flap thinning, and overbuilding the nasal framework to combat contraction and suboptimal scarring. METHODS: Between November 2010 and September 2015, 40 Asians were treated for nasal reconstruction with a modified forehead flap technique. Average age of 26 men and 14 women was 50.2 years (range: 10-87 years). Oncologic, traumatic, congenital, and infectious defects involving 1 (37%) or more (63%) subunits were reconstructed. Modifications to the classic forehead flap were extension of involved subunits and flap, conservative flap thinning, and framework overbuilding. RESULTS: Patients were followed for 20 months (range: 16 months to 4 years 8 months). Nasal lining was reconstructed with hinge-over lining flaps, forehead flaps, free flaps, or regional flaps. Cartilage was reconstructed in 44 (88%) patients with autologous septum or ear in 33 (75%) cases. Costal cartilage was needed in 11 (25%) cases. In 48 (96%) cases, the ipsilateral forehead was used. There were 5 (10%) wound infections, 2 (4%) dehisced wounds, and 2 (4%) occurrences of distal flap necrosis. Nasal aesthetic results were 72.6% good, 23.3% fair, and 4% poor. Donor site aesthetic results were 74% good and 26% fair. Three case reports are included. CONCLUSION: We report favourable results of forehead flap nasal reconstruction using refinements tailored to ethnic Asians. PMID- 29026819 TI - The Role of Dynamic Ultrasound in the Immediate Conservative Treatment of Volar Plate Injuries of the PIP Joint: A Series of 78 Patients. AB - INTRODUCTION: The management of volar plate avulsion fractures in the context of a stable joint and a bony fragment of less than 30% has traditionally been conservative. This study was performed to assess volar plate healing with high resolution ultrasound in order to provide early full mobilization. MATERIAL AND METHODS: Between January 2012 and December 2013, 78 patients with volar plate injuries of the proximal interphalangeal (PIP) joints (42 distortions and 36 dislocations) were treated conservatively in our department for volar plate avulsion fracture associated with stable joint and bony fragment inferior to 30% of the intra-articular surface assessed both by radiography and ultrasound. Conservative treatment included extension stop splinting for the first 2 weeks and Coban bandage until 6 weeks postinjury. However, it may be possible to modify the duration of extension stop splinting based on clinical and ultrasound findings (with no additional X-ray) performed every 2 weeks for the first 3 months and then at 4 months postinjury. Only patients with residual contracture at the 4-month assessment had prolonged follow-up in order to ensure adequate dynamic splint therapy. RESULTS: The amount of soft tissue oedema and the mobility of the volar plate were factors used to determine return to full mobilization. Mean extension-stop-splint wear was 16 +/- 2 days. During the first 2 follow-up assessments, 4 patients were excluded from the study because of the instability of the PIP joint. One patient required refixation of a large fragment of 30%, 2 patients required superficial flexor tendon (FDS) tenodesis of the unstable volar plate in hyperextension and 1 other patient required arthrodesis of the PIP joint. In 51 patients, the postoperative follow-up was free of complications at 4 months. In 18 patients, flexion contracture of 20 degrees (range 11 degrees -40 degrees ) and oedema during follow-up required dynamic extension splints for 3 to 5 months. After this time, 5 patients had a residual contracture of 10 degrees to 15 degrees . CONCLUSION: Avulsion fractures of the volar plate at the PIP joint are common. In general, they have a good outcome using the conservative treatment with extension block splints. Flexion contracture is a common complication and may be reduced by immediate splints in full extension at night and Coban bandage during the day. High-resolution sonography is a convenient tool to evaluate palmar plate stability, to assess reduction of oedema, and thus to guide safe return to full range of movement. PMID- 29026818 TI - Variations in the Anatomical Structures of the Guyon Canal. AB - BACKGROUND: Compression neuropathy of the ulnar nerve at the Guyon canal is commonly seen by hand surgeons. Different anatomical variations of structures related to the Guyon canal have been reported in the literature. A thorough knowledge of the normal contents and possible variations is essential during surgery and exploration. OBJECTIVES: To review the recognized anatomical variations within and around the Guyon canal. METHODS: This study is a narrative review in which relevant papers, clinical studies, and anatomical studies were selected by searching electronic databases (PubMed and EMBASE). Extensive manual review of references of the included studies was performed. We also describe a case report of an aberrant muscle crossing the Guyon canal. RESULTS: This study identified several variations in the anatomical structures of the Guyon canal reported in the literature. Variations of the ulnar nerve involved its course, branching pattern, deep motor branch, superficial sensory branch, dorsal cutaneous branch, and the communication with the median nerve. Ulnar artery variations involved its course, branching pattern, the superficial ulnar artery, and the dorsal perforating artery. Aberrant muscles crossing the Guyon canal were found to originate from the antebrachial fascia, pisiform bone, flexor retinaculum, the tendon of palmaris longus, flexor carpi ulnaris, or flexor carpi radialis; these muscles usually fuse with the hypothenar group. CONCLUSION: The diverse variations of the contents of the Guyon canal were adequately described in the literature. Taking these variations into consideration is important in preventing clinical misinterpretation and avoiding potential surgical complications. PMID- 29026820 TI - A Qualitative Assessment of the Journey to Delayed Breast Reconstruction. AB - BACKGROUND: Canada has low immediate breast reconstruction (IBR) rates compared to the United States and Europe. Breast cancer survivors live with mastectomy defects sometimes for years, and this represents an area for improvement in cancer care. PURPOSE: This study qualitatively assessed (1) information provided about breast reconstruction at the time of cancer diagnosis among women seeking delayed breast reconstruction (DBR) and (2) referral practices for plastic surgery consultation for DBR. METHODS: Fifty-two consecutive patients seen in consultation for DBR at a single Canadian tertiary care centre completed questionnaires regarding their experience in seeking breast reconstruction. Seven semi-structured interviews were conducted to further explore themes identified through questionnaires. Questionnaire responses and interview transcripts were analyzed for recurring themes using standard qualitative techniques. RESULTS: A significant portion of women (43%) was interested in reconstruction prior to mastectomy, yet IBR was infrequently discussed (14%) or discouraged by their oncologic surgeons (33%). Common patient reasons for not pursuing IBR were referring physician objection and not having adequate knowledge. Women expressed wanting to discuss reconstruction at the time of cancer diagnosis. Half of the patients had attended another consultation, but the initial plastic surgeon either did not offer procedures for which these women were candidates or had prohibitively long surgical wait times. CONCLUSION: Lack of information about reconstructive options at the time of cancer diagnosis and perceived access barriers to plastic surgeons may contribute to underutilization of IBR in Canada. Access to breast reconstruction can be improved by reducing inefficiencies in plastic surgery referrals. PMID- 29026821 TI - Comparison of Resorbable Mesh (Poly L-Lactide/Glycolic Acid) and Porous Polyethylene in Orbital Floor Fractures in an Experimental Model. AB - BACKGROUND: Resorbable mesh and porous polyethylene are frequently used alloplastic materials for the treatment of the orbital blowout fractures. The literature lacks reports comparing their long-term effects on experimental models. OBJECTIVE: Our aim was to radiologically and histologically evaluate the effectiveness and safety of porous polyethylene and resorbable mesh in a rabbit orbital blowout fracture model. METHODS: Twelve New Zealand white rabbits (24 orbits) were randomized to 4 groups. In group 1, only orbital floor dissection was done. In group 2, following orbital floor dissection, a 10-mm defect was created without any extra procedure. In group 3, following a 10-mm defect creation, a 12-mm-round cut porous polyethylene was placed on the defect. In group 4, following a 10-mm defect creation, a 12-mm-round cut resorbable mesh was placed on the defect. Computed tomographic analysis was performed during follow up period. Orbital floors were evaluated histologically at month 6. RESULTS: No clinical complications were observed during follow-up period. In radiological evaluation, there was no statistically significant difference between groups regarding bone formation. In histological evaluation, the connective tissue was denser, and organized and better bone formation was observed in group 3 and 4 when compared with other groups. CONCLUSION: Although no significant radiological changes were present, porous polyethylene and resorbable mesh performed better histologically. They were effective and well tolerated for reconstruction of the isolated orbital floor defects. PMID- 29026822 TI - Intraoperative Nerve Stimulation During Brachial Plexus Surgery: Comparison Between a Totally Disposable Nerve Stimulator and Nerve Stimulator Normally Used for Nerve Blocks. AB - BACKGROUND: Intraoperative nerve stimulation is done routinely in brachial plexus and peripheral nerve surgery as well as in selective neurectomy in spastic patients. OBJECTIVE: The current study compares the use of 2 different devices for nerve stimulation: a totally disposable nerve stimulator and a nerve stimulator used for nerve blocks by anesthetists. METHODS: A retrospective study of 60 patients who underwent brachial plexus surgery: In 30 patients, we used the totally disposable nerve stimulator (group 1) and in another 30 patients, we used the anesthesia device (group 2). The cost of disposable materials used for nerve stimulation was calculated in each group. The same surgeon performed all operations, and he was asked to give his subjective opinion regarding the convenience and ease of use of the device in each group. RESULTS: The main advantages of the totally disposable device are its placement totally within the sterile field, and it is operated by the surgeon without the need to communicate with the anesthetist. However, the totally disposable device had several major disadvantages when compared to the anesthesia device. Firstly, the disposable stimulator can only deliver 0.5, 1.0, and 2.0 mA stimuli, while the anesthesia device can deliver stimuli of 0.1 to 5 mA (in 0.1 mA increments). Secondly, the disposable stimulator frequently fails to operate during surgery, and this is not experienced with the anesthesia device. Finally, the cost of disposables is less using the anesthesia device. CONCLUSION: Our center has stopped using the disposable nerve stimulator in favour for the anesthesia device. PMID- 29026823 TI - Ivy Loop Wiring: A Useful Form of Endotracheal Tube Stabilization in Burn Patients. AB - The stabilization of endotracheal tubes in the burn population presents many problems. Access to the face for dressings, debridements, and the use of topical antimicrobials prevent adequate stabilization of the endotracheal tube with commonly used methods. Conventional methods have an increased risk of shifting, which can lead to injury to the friable burned tissue or unplanned extubation. To prevent these complications, alternative methods using the dentition to stabilize the endotracheal tube have been described. Here, we present our technique of using Ivy loops to secure the endotracheal tube. It is a simple method with low complications that provides a strong stabilization of the tube while giving access to the face. PMID- 29026824 TI - Textured Breast Implants: A Closer Look at the Surface Debris Under the Microscope. AB - BACKGROUND: Texturing of breast implants is done to decrease the risk of associated complications. Each manufacturer utilizes unique and at times proprietary techniques to texture the surface of their implants. Little is known about the integrity of this surface structure texturing or the propensity for the surfaces to shed particulate matter. This study aimed to determine the extent of surface particulate shedding from 3 textured implants approved by the US Food and Drug Administration (FDA), which are manufactured by Allergan, Mentor, and Sientra. METHODS: Control images of each of the 3 textured breast implants were obtained with scanning electron microscopy (SEM). A liquid adhesive, ethylene vinyl acetate (EVA) copolymer was then applied to the external shell of the implants, allowed to cool, and peeled from the surface. Images of the EVA copolymer were taken with SEM to qualitatively analyze displacement of surface particulate debris. Scanning electron microscopy imaging of the implants was repeated for qualitative comparisons with the control images. RESULTS: The peeled copolymer of the 3 implants exhibited surface shedding. Comparison of the 3 breast implants showed the shedding to be greatest for the Allergan implant. CONCLUSIONS: This study highlights the dynamic surface material properties of the 3 FDA-approved breast implants. Shedding of particulate matter from the implant surfaces can be precipitated by moderate adhesion. Our qualitative examination of SEM findings showed more debris shed from the Allergan breast implants than from the Mentor or Sientra implants. PMID- 29026825 TI - The Keystone Flap-A Case Series Demonstrating Practical Design, Use, and Applications. AB - INTRODUCTION: The keystone design perforator island flap is a trapezoidal-shaped random perforator island flap with many advantages over primary closure, skin grafting, and other local flaps for soft tissue reconstruction commonly encountered with cancer excisions. METHODS: This case series of 39 keystone flaps in 37 patients reviews the practical design, use, and applications of the flap while highlighting certain important considerations. Keystone flaps were designed as in the original description, with a minor modification in the lower extremity where a higher flap to defect width ratio was used. RESULTS: Defects varying in size from 6 to 63 cm2 were reconstructed in 23 males and 14 females ranging in age from 49 to 89. In all 39 cases, there were 2 minor complications of partial flap dehiscence and no major complications such as partial or complete flap loss. CONCLUSION: The keystone flap is a versatile and reliable flap with applications almost anywhere on the body. A higher ratio of flap width to defect width up to 1:3 is more appropriate for the lower extremity where tension is higher. PMID- 29026826 TI - The Superficial Femoral Artery Flap: A 3-Dimensional Anatomical Study. AB - BACKGROUND: The superficial femoral artery perforator (SFAP) flap offers advantages for pedicled transfer including consistent perforators and vascular territory, well-hidden donor site scar, and hairless flap skin. This article provides a historical overview of the SFAP flap and describes the vascular anatomy of the SFAP by 3-dimensional analysis and angiography. METHODS: Ten fresh cadavers were injected using the lead oxide technique through the femoral artery. Spiral computed tomographic scanning and 3-dimensional evaluation were used to describe the SFAP number, diameter, length, type, and location. RESULTS: A total of 288 perforators in 15 cadaver limbs were identified; 19 +/- 8 perforators per thigh >=0.5 mm in diameter, with an average diameter of 0.8 +/- 0.3 mm and a range of 0.5 to 2.1 mm; the mean length of each perforator was 68 +/- 31 mm; 45% were septocutaneous and 55% were musculocutaneous. The medial thigh region was divided into 6 areas (anterior and posterior halves, then the proximal third, middle third, and distal third of each). The majority of the perforators were located in the middle and distal thirds of the anteromedial thigh (33% each). CONCLUSIONS: Using 3-dimensional vascular anatomical analysis, the number, location, length, type, and diameter of the SFAP were documented. In the literature, relatively few reports of the use of the SFAP flap are available, however, this is a valid donor site with consistent cutaneous perforators suitable for harvest as a local or regional flap transfer. This is the first 3 dimensional vascular anatomical study to comprehensively document the vascular anatomy of the SFAP flap. PMID- 29026827 TI - Evaluation of Secondary and Late Secondary Alveolar Bone Grafting on 66 Unilateral Cleft Lip and Palate Patients. AB - OBJECTIVE: The aim of this retrospective study was to evaluate the outcomes of secondary alveolar bone grafting and late secondary alveolar bone grafting in 66 unilateral cleft lip and palate patients. MATERIALS AND METHODS: The total patients were 66 unilateral cleft lip and palate patients, out of which 19 patients underwent secondary alveolar bone grafting and 47 patients underwent late secondary alveolar bone grafting. Autogenous anterior iliac crest cancellous bone graft was harvested and used for grafting the alveolar clefts. Radiographic assessment based on Enemark's scoring according to the marginal bone levels was done on the intraoral periapical radiographs taken 6 months after performing the surgery. RESULTS: Twelve (63%) out of the 19 patients on whom secondary alveolar bone grafting was done achieved score 1 (optimal marginal bone levels), whereas only 12 (25%) out of the 47 patients achieved score 1 amongst the late secondary alveolar bone graftings. Overall results showed, probability, P = .034 (statistically significant). CONCLUSION: This study reaffirmed the fact that alveolar bone grafting when done in preadolescent age group (secondary alveolar bone grafting) gives better results in terms of marginal bony consolidation and maintaining the continuity of the alveolar arch, but the late presentation (late secondary alveolar bone grafting) should not be the refusal criteria for performing the alveolar bone grafting. Although the latter patients may not be rewarded in terms of bony consolidation as much as the preadolescent patients the potential of successful surgery in them still exists in terms of providing a platform for the dental implant placement, improvement in the soft tissue symmetry and aesthetics of the face. PMID- 29026828 TI - Objective Outcomes of Minimally Invasive Temporalis Tendon Transfer for Prolonged Complete Facial Paralysis. AB - OBJECTIVES: We describe an approach to reanimation of complete, prolonged facial paralysis using minimally invasive temporalis tendon transfer (MIT3) by the melolabial or transoral approach. Objective outcome measures are evaluated based on symmetry, and grading of preoperative/post-operative results and the scar at the melolabial fold. STUDY DESIGN: Retrospective cohort study. METHODS: Twenty five patients undergoing the MIT3 technique were studied. Photographic analysis was used to determine the percentage of difference between the 2 sides (symmetry). Using the Delphi method to achieve consensus, a panel of experts graded pre/post-operative photos using the Terzis' Facial Grading System and a 1 to 10 Likert-type scale and the melolabial scar using the Beausang Scar Scale. RESULTS: Percentage of difference (symmetry) with smiling improved from 18.6% +/- 1.5% (mean +/- standard error of the mean [SEM]) preoperatively to 5.0 +/- 0.9% (mean +/- SEM) post-operatively. Expert grading by the Terzis system showed improvement post-operatively (mean 3.7/5; median 3.6/5) versus preoperatively (mean 1.5/5; median 1.2/5). Perceived improvement was also largely favourable (mean 8.1/10; median 8.0/10). Melolabial scar grading was favourable in terms of colour (mean 1.53/4), surface character (mean 1.05/2), contour (mean 1.60/4), and distortion (mean 1.74/4). CONCLUSIONS: The MIT3 technique offers immediate, predictable, and symmetrical return of smile function. Objective symmetry analysis and favourable expert grading of both pre-/post-operative photographs and the scar at the melolabial fold demonstrate applicability for facial reanimation in patients where other procedures have failed, or when a direct return to function is desired. Both the melolabial approach and transoral approach were found to be acceptable and effective, although applicability varies. PMID- 29026829 TI - Aggressive Combined Medical and Surgical Management of Mucormycosis Results in Disease Eradication in 2 Pediatric Patients. AB - Rhinocerebral mucormycosis is an acute, rapidly fatal, fungal infection, classically involving the nasal mucosa and paranasal sinuses. It is an aggressive, opportunistic infection that frequently progresses to involve the orbit and cerebrum. Cerebral extension in immunocompromised patients is almost universally fatal. There are limited data on mucormycosis in pediatric immunocompromised patients in the literature, with only few reports on rhinocerebral involvement. The immunocompromised patients described in this report presented with suspected periorbital and nasal cellulitis, progressing rapidly to necrotic changes in nasal tissue and oral palatal mucosa. In these patients, the surgical resection of mucormycosis-infected tissue followed by flap reconstruction combined with medical treatment effectively treated the infection, allowed for the rapid resumption of chemotherapy and dramatically improved the quality of life for both the patient and their family. PMID- 29026830 TI - Treatment of Constriction Bands of Limbs by Fat Injection: An Additional Modality. AB - BACKGROUND: Constriction bands in the majority of cases presents as a contour deformity. The gold standard of treatment is a single-stage constriction ring excision and serial Z-plasty. The expense is unsightly scarring. We present case reports of deformity correction by serial fat injections. METHODS AND PARTICIPANTS: Three case studies of children in whom this modality was used in limbs to correct the deformity are presented. RESULTS: Two participants showed a good correction of the deformity and in a single-case treatment failed requiring excision and serial Z-plasty for correction. CONCLUSION: Fat injection in combination with Khouri's technique of aponeurotomies is an attractive modality of managing superficial constriction bands of limbs. PMID- 29026831 TI - Oral Examination. PMID- 29026832 TI - I'm a Plastic Surgeon: How Should I Manage My Debt? PMID- 29026834 TI - Conservative approach to the acute management of a large mesenteric cyst. AB - Mesenteric cysts are rare, benign gastrointestinal cystic lesions, which are often non-troublesome and present as an incidental radiological finding. However, surgery is often performed in the acute setting to remove lesions that are symptomatic. This report highlights the case of a large, symptomatic mesenteric cyst managed successfully with initial conservative measures followed by planned elective surgery. A 44-year-old female presented with a four-day history of generalised abdominal pain associated with distension, fever, diarrhoea and vomiting. Computer tomography revealed a large (21.7 cm * 11.8 cm * 14 cm) mesenteric cyst within the left abdomen cavity. She was admitted and treated conservatively with intravenous fluids and antibiotics for four days, which lead to complete symptom resolution. Follow-up at intervals of one and three months revealed no return of symptoms. An elective laparotomy and excision of the mesenteric cyst was then scheduled and performed safely at nine months after the initial presentation. Compared to acute surgery, acute conservative management followed by planned elective resection of a symptomatic mesenteric cyst may prove safer. The withholding of an immediate operation may potentially avoid unnecessary operative risk and should be considered in patients without obstructive and peritonitic symptoms. Our case demonstrated the safe use of initial conservative management followed by planned elective surgery of a mesenteric cyst found in the acute setting, which was symptomatic but was not obstructive or causing peritonitic symptoms. PMID- 29026835 TI - Recurrent aneurysmal bone cyst of talus resulted in tibiotalocalcaneal arthrodesis. AB - Aneurysmal bone cyst (ABC), a locally benign aggressive lytic lesion of either primary or secondary origin, seldom involves the talus. Herein, we present a 25 year-old man with recurrent ABC of the talus after curettage and bone grafting, which was managed by total resection followed by filling the defect using fibular graft and finally tibiotalocalcaneal arthrodesis due to articular surface involvement. At 18 mo postoperatively, no recurrence was detected. Arthrodesis might be a good option in cases with recurrent ABC of the talus especially with articular surface involvement. PMID- 29026836 TI - Anti-N-methyl-D-aspartate receptor encephalitis that aggravates after acinetobacter baumannii pneumonia: A case report. AB - We report an atypical case of anti-N-methyl-D-aspartate receptor encephalitis (ANMDARE). A 27-year-old man diagnosed with ANMDARE received immunotherapy and had a good recovery. However, within one month, he developed severe status epilepticus and decreased level of conscience with new hyperpyrexia and dyspnea, and was admitted to the emergency intensive care unit. Acinetobacter baumanii were found in the sputum culture; and anti-NMDAR antibodies were positive (titer: 1/80) in the cerebrospinal fluid. Repeated immunotherapy was administered with antibacterial agents, and the patient recovered except for mild psychiatric sequelae. This is the first report of ANMDARE that aggravates after acinetobacter baumannii pneumonia. Awareness and knowledge of this disorder should be extended, especially in the emergency medicine community. PMID- 29026833 TI - Primary prevention of cardiovascular disease in older adults in China. AB - Over the past two decades, the percentage of Chinese who is 60 years or older has increased from 5.2% in 1995 to 10.5% in 2015. Approximately 16% of the population in China was 60 years old and above in 2015. Since 1990, cardiovascular disease (CVD) has been the leading cause of death in China. Cardiovascular medications of older adults are usually more complicated than younger age groups due to polypharmacy, the presence of comorbidities and more susceptible to treatment related adverse outcomes. Therefore, effective primary prevention of CVD for older adults is important in sustaining the health of older adults and reducing the burden of the healthcare system. Proper management of CVD-related risk factors, such as hypertension, dyslipidemia, diabetes and obesity, can remarkably reduce risks of CVDs in older Chinese. These risk factors can be modified by managing blood pressure, glucose and lipids via lifestyle modifications or receiving medications. Smoking cessation, healthy diets, strict alcohol intake and moderate physical exercise are examples of recommended lifestyle changes for remarkably recovering health conditions of older adults who have hypertension, dyslipidemia, obesity, diabetes or complications. Treatment prescriptions of older adults, in general, are recommended to be individualized and to be initiated at a low dose. The future directions for better primary CVD prevention in older adults include establishing guidelines for primary prevention of CVD for different older adults and further research on better management strategies of CVD risks for elderly Chinese. PMID- 29026838 TI - Tumor Necrosis Factor-alpha Antibodies in Fistulizing Crohn's Disease: An Updated Systematic Review and Meta-analysis. AB - Medical treatment for fistulizing Crohn's disease (FCD) is changing rapidly over the time by the introduction of novel therapeutic medicines, while no global consensus is available. This study aims to accomplish a systematic review and meta-analysis on the efficacy of tumor necrosis factor-alpha antibodies (anti-TNF alpha antibodies) versus placebo in FCD. A systematic review of published literature was carried out till December 2016, and a meta-analysis of identified studies was done. Data have been explored from PubMed, Scopus, Cochrane Library Database, and Web of Science. Predefined exclusion criteria for included studies in meta-analysis are based on search methodology and are as follows: Randomized clinical trial about Crohn's disease (CD) patients without fistula, pediatrics CD, randomized clinical trials about pregnant women with FCD, nonhuman studies, randomized clinical trials with surgical therapies interventions, conference abstracts, case reports, and language other than English studies. All randomized placebo-controlled trials were included. To assess risk of bias, Jadad score was applied to evaluate trials' methodological quality. Relative risk (RR) and 95% confidence intervals were computed using Mantel-Haenszel and/or Rothman-Boice (for fixed effects) or Der Simonian-Laird (for random effects) techniques. Nine studies attained defined inclusion criteria. The meta-analysis results showed that anti-TNF-alpha antibodies are remarkably more effective in comparison to placebo for fistula closure maintenance (RR = 2.36; 95% confidence interval: 1.58 3.55; P < 0.0001) in patients with FCD, whereas anti-TNF-alpha antibodies were not superior to placebo neither in fistula improvement nor in fistula closure. We concluded that adalimumab and certolizumab pegol are both effective in fistula closure maintenance in adult patients with FCD. PMID- 29026839 TI - Missing the Benefit of Metformin in Acute Myeloid Leukemia: A Problem of Contrast? AB - OBJECTIVE: To evaluate whether metformin's cancer-related benefits reported in patients with solid tumors (ST) are also present in acute myeloid leukemia (AML) patients. METHODS: Baseline demographic and clinical history for all diabetes mellitus patients newly diagnosed with AML or cancer of the breast, ovary, prostate, gastrointestinal tract, lung, or kidney at Roswell Park Cancer Institute in Buffalo, NY (January 2003-December 2010, n = 924) was collected. Overall survival (OS) and disease-free survival (DFS) were assessed by Kaplan Meier (KM) analysis and Cox proportional hazards regression (hazard ratio [HR]). FINDINGS: Baseline metformin use provided significant OS and DFS benefit in ST but not in AML (KM: PST-OS= 0.003; PST-DFS= 0.002; PAML-OS= 0.961; PAML-DFS= 0.943). AML median survival was slightly better with metformin use, but users derived no relapse benefit. In ST, metformin nonusers had shorter median survival, 57.7 versus 86 months, and poorer outcomes (HRST-OS= 1.33; PST-OS= 0.002; HRST-DFS= 1.32; PST-DFS= 0.002). These findings remained significant in age-adjusted models (HRST-OS= 1.21; PST-OS= 0.039; HRST-DFS= 1.23; PST-DFS= 0.02) but not fully adjusted models (HRST-OS= 0.96; PST-OS= 0.688; HRST-DFS= 1.0; PST DFS= 0.94). Higher mortality was noted in AML patients taking insulin versus oral diabetes pharmacotherapy at baseline (HRAML-OS= 2.03; PAML-OS= 0.04). CONCLUSION: Lack of metformin benefit in AML could be due to advanced age at cancer diagnosis. Metformin substitution with insulin before computed tomography scans with contrast - a frequent AML assessment practice - may also explain the lack of subsequent benefit despite taking metformin at baseline. A temporary metformin substitution is recommended by the package insert due to a possible drug interaction with the contrast dye. Our data suggest that metformin substitution was permanent in many patients. Nonetheless, the observed benefit in other malignancies warrants further investigation of metformin use in AML. PMID- 29026837 TI - BINDING SITE ANALYSIS OF THE CAENORHABDITIS ELEGANS NR4A NUCLEAR RECEPTOR NHR-6 DURING DEVELOPMENT. AB - Members of the NR4A subfamily of nuclear receptors make up a highly conserved, functionally diverse group of transcription factors implicated in a multitude of cellular processes such as proliferation, differentiation, apoptosis, metabolism and DNA repair. The gene nhr-6, which encodes the sole C. elegans NR4A nuclear receptor homolog, has a critical role in organogenesis and regulates the development of the spermatheca organ system. Our previous work revealed that nhr 6 is required for spermatheca cell divisions in late L3 and early L4 and spermatheca cell differentiation during the mid L4 stage. Here, we utilized chromatin immunoprecipitation followed by next-generation sequencing (ChIP-seq) to identify NHR-6 binding sites during both the late L3/early L4 and mid L4 developmental stages. Our results revealed 30,745 enriched binding sites for NHR 6, ~70% of which were within 3 kb upstream of a gene transcription start site. Binding sites for a cohort of candidate target genes with probable functions in spermatheca organogenesis were validated through qPCR. Reproductive and spermatheca phenotypes were also evaluated for these genes following a loss-of function RNAi screen which revealed several genes with critical functions during spermatheca organogenesis. Our results uncovered a complex nuclear receptor regulatory network whereby NHR-6 regulates multiple cellular processes during spermatheca organogenesis. PMID- 29026840 TI - Impact of CYP2C19 Polymorphisms on Serum Concentration of Voriconazole in Iranian Hematological Patients. AB - OBJECTIVE: This study aimed to determine the portion of Iranian patients who attain therapeutic serum concentrations of voriconazole (VRCZ) following administration of fixed doses. In addition, the effect of CYP2C19 polymorphism on serum levels of VRCZ was also investigated. METHODS: Forty-eight adult patients of Iranian origin with hematologic malignancies, who received VRCZ for treatment of invasive aspergillosis, were recruited into the study. Blood samples were drawn at day 4 of treatment to measure trough drug concentrations and determine genotyping of CYP2C19 polymorphisms of each patient. High-performance liquid chromatography method was used for measuring VRCZ serum level and CYP2C19 polymorphisms were conducted by Sanger sequencing. Demographic and clinical characteristics of patients alongside with CYP2C19 polymorphisms were assessed to determine the effective factor/s on VRCZ serum concentration. FINDINGS: Seventy three percent of patients achieved therapeutic serum concentrations of VRCZ with administration of usual fixed doses in clinical practice. There was no correlation between weight-adjusted dose and serum concentrations of VRCZ. Mean serum levels were significantly different neither in genders nor in routes of administrations. Extensive and ultrarapid metabolizers (URMs) comprised 48.7% and 21.6% study population, respectively. CYP2C19 polymorphism dramatically influenced the trough levels of VRCZ, so that all patients with subtherapeutic levels expressed URM phenotype. CONCLUSION: With respect to high incidence of URM phenotype in Iranian population, and observed association of this phenotype with sub-therapeutic levels in our study, performing therapeutic drug monitoring is strongly recommended for all patients. PMID- 29026841 TI - Causes of Medication Errors in Intensive Care Units from the Perspective of Healthcare Professionals. AB - OBJECTIVE: This study was conducted to explore and to describe the causes of medication errors in Intensive Care Units (ICUs) from the perspective of physicians, nurses, and clinical pharmacists. METHODS: The study was conducted using a descriptive qualitative method in 2016. We included 16 ICUs of seven educational hospitals affiliated to Isfahan University of Medical Sciences. Participants included 19 members of the healthcare team (physician, nurse, and clinical pharmacist) with at least 1 year of work experience in the ICUs. Participants were selected using purposeful sampling method. Data were collected through semi-structured individual interviews and were used for qualitative content analysis. FINDINGS: The four main categories and ten subcategories were extracted from interviews. The four categories were as follows: "low attention of healthcare professionals to medication safety," "lack of professional communication and collaboration," "environmental determinants," and "management determinants." CONCLUSION: Incorrect prescribing of physicians, unsafe drug administration of nurses, the lack of pharmaceutical knowledge of the healthcare team, and the weak professional collaboration lead to medication errors. To improve patient safety in the ICUs, healthcare center managers need to promote interprofessional collaboration and participation of clinical pharmacists in the ICUs. Furthermore, interprofessional programs to prevent and reduce medication errors should be developed and implemented. PMID- 29026842 TI - Knowledge, Attitude and Practice of Iranian Pharmacists, Body Builders, and Their Coaches Regarding Sports Supplements. AB - OBJECTIVE: This study is conducted on Iranian pharmacists, coaches, and athletes regarding sports supplements to assess their knowledge, attitude, and practice (KAP) regarding sports supplements. METHODS: This was a cross-sectional study conducted in 2015. The study population consisted of all community pharmacists, bodybuilders, and bodybuilding coaches. The questionnaire was applied consisting some demographic questions and 25 questions for assessing KAP (6, 9, and 10, respectively). The collected data were analyzed with independent t-test, ANOVA, and Pearson correlation. FINDINGS: In all three studied groups, the mean of KAP was upper than intermediate level 3 (P < 0.05) except the pharmacists' knowledge. A statistically significant difference appears between knowledge and age of pharmacists (P = 0.007). In addition, there was a significant relationship between coaches' practice and age (P = 0.04). CONCLUSION: According to the results although the studied groups have the intermediate level of KAP, organized and regular education courses are highly recommended along with paying more attention to the curriculum taught in the pharmacy schools according to the community current needs. PMID- 29026843 TI - Melatonin Supplementation May Improve the Outcome of Patients with Hemorrhagic Stroke in the Intensive Care Unit. AB - OBJECTIVE: Although mechanical ventilation is frequently a life-saving therapy, its use can result in unwanted side effects. It has been well documented that the choice of sedating agent may influence the duration of mechanical ventilation. Melatonin is a sedative and analgesic agent without any respiratory depressant effect which makes it an attractive adjuvant for sedation in the intubated patients. The aim of this study is to evaluate the effect of melatonin on the duration of mechanical ventilation in patients with hemorrhagic stroke. METHODS: Forty adult intubated patients with hemorrhagic stroke, who were admitted to the Intensive Care Unit (ICU) within 24 h of onset, were enrolled in this randomized double-blind study. Subjects in the melatonin group received 30 mg of melatonin every night throughout the nasogastric tube. Length of ICU stay, mortality, and duration of mechanical ventilation were recorded for all patients. FINDINGS: The duration of mechanical ventilation and length of ICU stay were shorter in patients who received melatonin in comparison with the control group, and this difference was statistically significant for the length of ICU stay and marginally significant for the duration of mechanical ventilation. Although not statistically significant, the mortality rate of the control group was 30%, almost double that of the study group (15%). CONCLUSION: Melatonin possesses hypnotic, analgesic, anti-inflammatory, and anti-oxidative properties that distinguish it as an attractive adjuvant in patients under mechanical ventilation. In conclusion, the administration of melatonin may facilitate the weaning process through decreasing the consumption of sedatives with respiratory depressant properties as well as preventing ventilator-associated lung injury. PMID- 29026844 TI - An Interprofessional Collaboration between Medicine and Pharmacy Schools: Designing and Evaluating a Teaching Program on Practical Prescribing. AB - OBJECTIVE: Medical students need proper education in drug prescription. The aim of the present study is to introduce a course that improves the students' prescribing skills and also promotes an interprofessional collaboration between medicine and pharmacy schools. METHODS: This study was done in a skill laboratory at the pharmacotherapy department of Tehran University of Medical Sciences, Tehran, Iran. The course was an 18-h interactive workshop in 3 days under the supervision of clinical pharmacists. A total of 18 medical students participated in these classes before their internship. Before and after each class, they were given tests and paired t-test was done to compare the marks. FINDINGS: A total of 18 medical students participated in this study. The results showed that the knowledge of the students on pharmacotherapy, drug information, and prescribing skills has been significantly improved at the end of the course. CONCLUSION: Using clinical pharmacists to the present pharmacotherapy course could be an effective model for medical students to obtain better prescribing skills. PMID- 29026845 TI - Osteonecrosis of the Jaws in Patient Received Bisphosphonates and Sunitinib Separately: A Case Report. AB - Recently published reports have suggested that antiangiogenic drugs such as sunitinib could potentiate the osteonecrosis of the jaw (ONJ) induced by bisphosphonates (BPs) and even induce this adverse effect per se. We reported a case of ONJ with renal cell carcinoma under sunitinib medication and history of BPs therapy. A 53-year-old man was referred to the oral surgery clinic complaining of painful exposed oral lesion and bone extraction from right lower jaw in the mouth. He underwent nephrectomy followed by 5 months treatment with cycles of 50 mg sunitinib (Sutent(r)) once a day for 4 weeks followed by 2 weeks drug free before lesion exposure in October 2016. However, the patient has encounter to intermittent mucositis and gingivitis in oral cavity several times. Our patient had a history of zoledronic acid (4 mg intravenously two times) administration due to primary cancer misdiagnosis. In our case, no dental procedure contributed to the occurrence of ONJ. The lesion was improved by sunitinib cessation and administration of antibiotics through 2 weeks. Mucosal injury induction as well as inhibition of angiogenic signaling pathways by sunitinib administration may have precipitated the occurrence of ONJ. In addition, a possible synergistic effect by previously BP treatment is another accused. PMID- 29026846 TI - Intracranial Hemorrhage in Methanol Toxicity: Challenging the Probable Heparin Effect during Hemodialysis. AB - Brain hemorrhages are rare complications of acute methanol poisoning. There is a debate on association of brain hemorrhage in methanol toxicity and application of systemic anticoagulation during hemodialysis (HD). A 70-year-old male presented to us with severe metabolic acidosis and a methanol level of 7.6 mg/dL. Ethanol and folinic acid were administered, and HD was performed. Brain computed tomography (CT) scan which was normal on presentation showed extensive bilateral subcortical supratentorial hypodensities on the 3rd day after commencing the treatment. However, the next CT scan performed 2 weeks later revealed expanding hemorrhagic transformation in previous hypodensities. Hemorrhagic changes could not be explained by patient's coagulation profile on the 3rd day. Anticoagulation agents such as heparin are used routinely during a dialysis session to prevent clot formation in dialysis circuits. This case is possibly questioning the role of heparin in hemorrhagic brain lesions of methanol intoxication. PMID- 29026847 TI - Intralesional Bevacizumab (Avastin(r)) as a Novel Addition to Infantile Hemangioma Management: A Medical Hypothesis. PMID- 29026848 TI - Drug Induced Sialorrhea and Microfluidic-Chip-Electrophoretic Analysis of Engorged Adult Female Tick Saliva of Haemaphysalis longicornis (Acari: Ixodidae). AB - BACKGROUND: The aim of the present study was to induce salivation in Haemaphysalis longicornis to increase saliva production and to characterize the collection of proteins present in the collected saliva using on-chip electrophoresis. METHODS: Saliva of adult female engorged H. longicornis was collected by treatment with 0.2% dopamine hydrochloride. All protein samples were characterized by SDS-PAGE electrophoresis using a microfluidic High Sensitivity Protein Assay 250 kit by 2100 Bioanalyzer (Agilent Technologies, USA) under non reducing conditions. RESULTS: The average salivary protein concentration was 0.169 MUg/MUl/tick and saliva secretion decreased with increased time of tick detachment from the host. Saliva secretion volume increased to 3.56 MUl in the group of ticks with a body weight between 301-350 mg as compared to higher and lower body weight groups. On-chip-electrophoresis results show 13 distinct bands ranging from 9.9 to 294 kDa. CONCLUSION: Based on molecular weight, the putative salivary proteins are comprised of proline-rich proteins, triabin, apyrase members of the 12-kDa protein family, platelet inhibitors and anti-inflammatory proteins as tick saliva contains anti-inflammatory components. PMID- 29026849 TI - Increased Levels of VEGF-A and HIF-1alpha in Turkish Children with Crimean-Congo Hemorrhagic Fever. AB - BACKGROUND: Crimean-Congo Hemorrhagic Fever (CCHF) is a disease characterized by serious course, including acute viral fever, ecchymosis, thrombocytopenia, liver dysfunction and high rate of mortality. Hypoxia Inducible Factor-1alpha (HIF 1alpha) and Vascular Endothelial Growth Factor-A (VEGF-A) play an important role both in the inflammatory process and plasma leakage. The aim of this study was to define HIF-1alpha and VEGF-A serum levels obtained from CCHF patients and control group and to investigate whether these factors were correlated with the pathogenesis of this disease. METHODS: Thirty cases younger than 17yr confirmed by RT-PCR and/or ELISA for CCHF were included in this study. Thirty age and sex matched healthy peoples were enrolled as controls. Blood samples collected from the patient and control groups. Serum levels of HIF-1alpha and VEGF-A were measured with ELISA. RESULTS: Levels of HIF-1alpha and VEGF-A were statistically significantly increased in CCHF patients compared to the control group (P< 0.05). A significant positive correlation was found between the levels of HIF-1alpha and VEGF-A in the patient group (P< 0.01). The levels of ALT, AST, CK, aPTT, WBC and Thrombocyte count were significantly higher in the patients than in the control group (P< 0.001). A positive correlation was found among the levels of AST and CK from biochemical parameters and VEGF and HIF-1alpha in the patient group (P< 0.05). CONCLUSION: HIF-1alpha and VEGF-A might play an important role in CCHF pathogenesis. PMID- 29026850 TI - Disappearance of Anopheles minimus and Anopheles dirus from Certain Malaria Endemic Areas of Assam, India. AB - BACKGROUND: Orang Primary Health Centre (OPHC) and Balipara Primary Health Centre (BPHC) of Assam (India) report mosquito borne diseases annually. Current study was performed to ascertain the prevalence of known malaria and Japanese Encephalitis (JE) vectors and their possible role in disease transmission. METHODS: Malaria epidemiological data for 2006-2010 and JE data for 2008-2013 of Assam, India were obtained from the health authority. Mosquitoes were collected using CDC light traps and identified morpho-taxonomically. RESULTS: Plasmodium falciparum cases (81.5%, 95% CI= 72.0-91.1) were statistically higher in OPHC (P< 0.0001, t= 8.0) during the recent years. There was 4.4 folds rise in the confirmed acute encephalitis syndrome (AES) and 3.2 folds increase in the confirmed JE cases during 2013 as compared to 2008. Altogether 9,218 mosquito specimens (PTND= 153.6), comprising of 44.1% anophelines (PTND= 67.7), 42.3% culicines (PTND= 65.0) and 9.5% mansonia (PTND= 14.6) were recorded. In BPHC, Anopheles vagus was recorded in high density (P< 0.0001), whereas Culex quinquefasciatus was the predominant JE vector (P= 0.04). In OPHC, among the known malaria vectors, the density of Anopheles annularis was significantly high (P< 0.0001). However Culex bitaeniorhynchus was the predominant known JE vector (P< 0.0001) followed by Cx. quinquefasciatus. CONCLUSION: Even in the absence of known efficient vectors, many Anopheles species are still involved in malaria transmission. There was disappearance of Anopheles minimus and Anopheles dirus and establishment of An. annularis, An. vagus and An. philippinensis/nivipes mosquitoes in study area. PMID- 29026851 TI - Wild Rodent Ectoparasites Collected from Northwestern Iran. AB - BACKGROUND: Rodents play an important role as reservoir of some pathogens, and the host of some ectoparasites as well. These ectoparasites can transmit rodents' pathogens to human or animals. The aim of this study was to assess the distribution and infestation load of ectoparasites on rodents in Meshkin-Shahr District, northwestern Iran. METHODS: Rodents were captured using baited live traps in spring 2014 from Meshkin-Shahr District and were transferred to the laboratory for identification to the species level. Their ectoparasites were collected, mounted and identified. RESULTS: Three rodent species including Meriones persicus (74%), Mus musculus (16.9%) and Cricetulus migratorius (9%) were identified. Among all rodents, 185 specimens (90.69%) were infested with a total of 521 ectoparasites. Overall, 10 arthropods species were collected, including fleas (97.6%), one mite (1.6%) and one louse species (0.6%) as follows: Xenopsylla nubica, X. astia, X. buxtoni, X. cheopis, Nosopsyllus fasciatus, N. iranus, Ctenocephalides felis, Ctenophthalmus rettigismiti, Ornithonyssus sp and one species of genus Polyplax. The most prevalent ectoparasites species was X. nubica (89%). CONCLUSION: Nearly all rodent species were infested with Xenopsylla species. Monitoring of ectoparasites on infested rodents is very important for awareness and early warning towards control of arthropod-borne diseases. PMID- 29026852 TI - Effect of Climatic Conditions and Water Bodies on Population Dynamics of the Dengue Vector, Aedes aegypti (Diptera: Culicidae). AB - BACKGROUND: The population of mosquitoes is mainly influenced by the biotic and abiotic factors. Although Aedes aegypti was reported until 1960's in the Punjab, Pakistan, the population has increased dramatically since 2009 and caused severe epidemics in 2011 due to heavy floods and rains. Thus, this study was carried out to know the effect of biotic and abiotic factors on the population of Aedes aegypti. METHODS: Mosquitoes were collected from fresh, sewage, and rain water ponds, fish ponds, rice fields, tyres, tree holes, and manmade storage containers present in and around residential homes twice during every winter (October February), summer (March-June) and monsoon season (July-September) from marked rural areas. RESULTS: More mosquitoes were collected in 2010 and 2011 due to floods than other years with heavy rains. High population (52.4%) was recorded during the rainy season due to high temperature (28-36 degrees C) and high relative humidity (up to 75%), while low population was recorded during the winter due to low temperature (< 5 degrees C) and low relative humidity (< 22%). Specimens were recorded indoors when outside temperature was below freezing point. Ae. aegypti was largely collected from tyres and urban areas mostly during the rainy season from small water containers. Years, months, seasons, temperature and relative humidity were statistically significant concerning the population dynamics of mosquitoes. CONCLUSION: Abiotic factors (temperature & relative humidity) along with habitat have significant impact on population dynamics of mosquitoes. PMID- 29026854 TI - A Comparative Study of Nesting Sites and Burrowing Habits of Two Iranian Burrowing Scorpions. AB - BACKGROUND: The different features of scorpions can be successfully described by their nesting and burrowing behaviors. There is little information about burrowing activity of Iranian scorpions. METHODS: The current study was performed to compare the burrowing behavior between two burrowing Iranian scorpions, Scorpio maurus and Odonthubutus bidentatus by describing 30 nests of each species regarding collecting the scorpions. RESULTS: Scorpio maurus and O. bidentatus have a tendency to make nest with elliptical, round-like entrance and oval shape with arch at the top, respectively. There was not any significant difference between nest entrance properties of two scorpions. One-way ANOVA test showed that the height and diameter of two species nests were not significantly different. A Pearson correlation also showed a relative strong direct relationship between height and diameter of S. maurus nests than O. bidentatus. This correlation was not significant in the case of O. bidentatus. The results provided additional habitat information of scorpions. CONCLUSION: The nests morphology characteristics of two Iranian scorpions including shape, depth, length and diameter depend are different from each other based on the following factors: species, soil texture, soil moisture and region conditions. PMID- 29026853 TI - Molecular Characterization and Phylogenetic Congruence of Hydropsyche sciligra (Tricoptera: Hydropsychidae) Using Mitochondrial and Nuclear Markers. AB - BACKGROUND: Caddisflies have significant roles in freshwater ecosystems. Morphological identification is the major impediment in accurate species identification of Hydropsychids. Mitochondrial and nuclear markers are suitable for molecular systematics of these group of arthropods. METHODS: Trichopteran specimens of Lavasan District in northeastern Tehran, Iran were collected in 2012, and described using the morphological and molecular characters of mitochondrial cytochrome c oxidase subunit I (mt-COI) and three expansion fragments of large subunit (LSU) nuclear ribosomal DNA (28S rDNA) D1, D2, and D3. The resemblance of the specimen sequences was obtained by conducting BLAST searches against the GenBank database and by using simple maximum likelihood clustering using COI, D1, D2, D3, and combination of D1-D2-D3 sequence data sets. RESULTS: Based on morphological traits the specimens were resembled to Hydropsyche sciligra however there were no its counterpart sequences in the GenBank. Due to lack of unique group of data set for each gene fragment, the specimens were associated with different taxa on molecular phylograms. The sequence contents of the COI, D1, D2, D3, and D1-D3 regions clustered H. sciligra with H. brevis, H. angustipennis, H. occidentalis, H. hedini, H. grahami, and H. longifurca/H. naumanni, respectively. CONCLUSION: Phylogenies obtained from combination of D1-D3 showed the highest bootstrap values for most of clades suggesting that long LSU-rDNA potentially is more useful for understanding phylogenetic relationships of caddisflies. A large-scale molecular and zoogeographic study on trichopteran species is suggested to revise and to develop the current knowledge of the caddisfly fauna and distributions in the country. PMID- 29026855 TI - Insecticide Susceptibility Status of Wild-Caught Sand Fly Populations Collected from Two Leishmaniasis Endemic Areas in Western Turkey. AB - BACKGROUND: In Turkey, vector control programs are mainly based on indoor residual spraying with pyrethroids against mosquitoes. No special control program is available for sand flies. Most insecticide susceptibility tests were done for mosquitoes but not for sand flies. We therefore aimed to determine the insecticide susceptibility against two commonly used insecticides; deltamethrin and permethrin, on wild-caught sand fly populations collected in two geographically separated leishmaniasis endemic areas. METHODS: Insecticide susceptibility of wild-caught sand flies to deltamethrin (0.05%) and permethrin (0.75%) using ready-to use impregnated insecticide papers of WHO was investigated in 2010 based on knockdown time using standard WHO tube-test kit and procedures. Sand flies used in this study were collected from villages of Aydin (Bascayir) and Mugla (Tepecik). RESULTS: The resistance and early resistance were detected on the sand fly population from Mugla province against deltamethrin and permethrin, respectively. However, populations from Aydin Province were sensitive to both insecticides. CONCLUSION: The resistance against deltamethrin and permethrin was detected on sand fly population in Mugla Province where both insecticides have been applied for long time while no resistance was found in the insecticide free area, Aydin Province. These findings can be an indicator for showing the ability for developing the insecticide resistance in sand flies. Because of the presence and dominancy of vector sand fly species of Leishmania infantum (Phlebotomus neglectus, P. tobbi) in both study areas, the systematic monitoring for resistance of sand fly populations and more attention are needed by the authorities involved in control programs for sand fly-borne diseases. PMID- 29026856 TI - Synthesis and Comparison of In Vitro Leishmanicidal Activity of 5 (Nitroheteroaryl)-1,3,4-Thiadiazols Containing Cyclic Amine of Piperidin-4-ol at C-2 with Acyclic Amine Analogues against Iranian Strain of Leishmania major (MRHO/IR/75/ER). AB - BACKGROUND: Cutaneous Leishmaniasis (CL) is endemic in many tropical and subtropical regions of the world. Due to the prolonged duration of therapy, adverse effect and resistance to current drugs in the treatment of CL, the discovery of novel, efficient, and safe leishmanicidal drugs is required. The aims of the present study was to synthesis of new compounds based on the active compounds of 5-(5-nitrofuran-2-yl)- and 5-(5-nitrothiophen-2-yl)-1,3,4 thiadiazole bearing the linear amino alcohol of 3-aminopropan-1-ol in the C-2 position of thiadiazole ring and evaluation of their activity against the promastigote and amastigote forms of Leishmania major. METHODS: Reaction between the solution of 5-(5-nitro heteroaryl)-2-chloro-1,3,4-thiadiazole and piperidin-4 ol in absolute ethanol was performed and the resulting products were evaluated against promastigotes form of L. major with MTT assay and amastigote form of L. major in murine peritoneal macrophages. In addition, the toxicity of these compounds was assessed against mouse peritoneal macrophages with MTT assay. RESULTS: New synthetic compounds 5a-b showed moderate in vitro antileishmanial activity against L. major promastigotes with IC50 values of 68.9 and 27MUM, respectively. These compounds have also demonstrated a good antiamastigote activity in terms of amastigote number per macrophage, the percentage of macrophage infectivity and infectivity index. CONCLUSION: Novel cyclic compounds 5a-b were synthesized and exhibited less antipromastigote and antiamastigote activity compared to linear analogues. PMID- 29026857 TI - Repellency Effect of Essential Oils of some Native Plants and Synthetic Repellents against Human Flea, Pulex irritans (Siphonaptera: Pulicidae). AB - BACKGROUND: Fleas are important vectors of human and animal disease, and control measures for protection against their bites and flea-borne diseases are necessary. METHODS: The essential oils (EOs) of four native medicinal plants, Ziziphora tenuiore, Myrtus communis, Achillea wilhelmsii and Mentha piperita were isolated by hydrodistillation technique and analyzed by GC-MC. The repellent activity of EOs and synthetic compounds, DEET and permethrin, were assayed on human subjects against field collected fleas. The effective doses of 50% and 90% of EOs and synthetic compounds were estimated by probit analysis of dose and response regression line. RESULTS: Analysis of EOs revealed about 19 major components. All oils were found to be more repellent (ED50 range= 208-955MUg cm 2) than DEET and permethrin (ED50 range= 27-182 * 103MUg cm-2). Thyme and myrtle oils showed high repellent activities and among the total detected terpenes, thymol (36.26%) and alpha-pinene (32.5%) were the major components of those oils respectively. CONCLUSION: Low repellent potency of DEET and permethrin against fleas might be related to flea olfactory system and further molecular and electrophysiological studies are required to conceive new ideas for the discovery and development of the next generation of repellents. Based on high repellent activity of thyme and myrtle essential oils against Pulex irritans further studies should be staged to develop their appropriate effective formulations. Likewise, field trials should be carried out to evaluate the operational feasibility and dermal toxicity over a long period. PMID- 29026858 TI - Chemical Constitute and Larvicidal Activity of Fractions of Ajuga chamaecistus tomentella Plant against Malaria Vector Anopheles stephensi. AB - BACKGRAND: The genus Ajuga, belongs to Lamiaceae family, is one of the exclusive subspecies in the flora of Iran. The plants of this genus are used traditionally for treatment of joints pain, gout, jaundice, and as insecticide. METHODS: larvicidal activity of methanol 80% extract and partition fractions of hexane, chloroform, and ethyl acetate obtained from aerial parts of Ajuga chamaecistus subspecies tomentella against malaria vector An. stephensi was evaluated. Phytochemical study of active fraction was analyzed using column chromatography and spectroscopy. RESULTS: According to the results, among different fractions, hexane fraction has the most larvicidal activity with mortality rate of 100% in concentration of 102 ppm and LC50 of 95.66ppm. The structure of compound 1, main phytoecdysteroid compound separated from hexane fraction, was determined to be ajugalide-E. CONCLUSION: The results suggested that the hexane fraction of Ajuga chamaecistus subsp tomentella could be used as a natural and biodegradable insecticide. PMID- 29026859 TI - Molecular Identification of Leishmania Species in a Re-Emerged Focus of Cutaneous Leishmaniasis in Varamin District, Iran. AB - BACKGROUND: Cutaneous leishmaniasis (CL) is one of the most important neglected tropical diseases and a major public health challenge in Iran caused by Leishmania spp and transmitted by phlebotomine sand flies. The number of CL cases has shown an increasing pattern all over the country, including the district of Varamin, southeast of Tehran, Iran. This study aimed to identify the Leishmania spp isolated from CL patients using molecular methods in Varamin during 2012 2013. METHODS: Exudate materials collected from the swollen edge of the skin lesions of 44 parasitological positive CL patients by disposable lancet. They were referred to Varamin Health Center by physician. The samples were subjected to molecular method for Leishmania species identification. RESULTS: The digestion pattern of restriction enzyme revealed that 37 (84.1%) CL patients were infected with L. major and 7 (15.9%) were infected with L. tropica. They were mostly male than female. More than half of the patients (58%) had multiple lesions, and they were mostly observed on extremities, 34.1% on legs and 29.5% on hands. Lesions were mostly of wet ulcerative type. CONCLUSION: Dominancy of L. major provides more evidence that Varamin District probably could be considered as Zoonotic Cutaneous Leishmaniasis (ZCL) areas. More investigation on other epidemiological aspects of disease is needed. PMID- 29026861 TI - Presence of Phlebotomus perniciosus Atypical Form in Algeria. AB - BACKGROUND: Phlebotomus perniciosus and Phlebotomus longicuspis are two phlebotomine sand fly species morphologically similar and differing in males only by the shape of the copulatory valves which are bifurcated in P. perniciosus, tip long and tapered in P. longicuspis. METHODS: A count of the median coxite setae was carried out on 208 specimens from the collections of Dedet and of Parrot, identified previously as P. longicuspis and on 38 P. perniciosus male sand flies captured during the year 2012-2013, in order to seek the presence of atypical P. perniciosus form. RESULTS: The analysis revealed the presence of 33/246 (13%) atypical P. perniciosus previously confused with P. longicuspis species and whose distribution is mainly located in the semi-arid and arid bioclimatic regions. CONCLUSION: This study proved for the first time the presence of atypical form of P. perniciosus in Algeria. PMID- 29026862 TI - Bioefficacy of Some Egyptian Aromatic Plants on Culex pipiens (Diptera: Culicidae) Adults and Larvae. AB - BACKGROUND: Protecting the environment from chemical hazards of synthetic insecticides along with offering of new breeding areas for vectors by urbanization indicate the trial of natural insecticides. METHODS: The acetone extracts of Anethum graveolens, Ocimum basilicum and Thymus vulgaris were tested for their insecticidal effect on Culex pipiens adults and larvae in different concentrations depending on the technique used. RESULTS: The extracts were significantly effective in all models used with basil being the best in all tested three techniques (LC50= 0.064) in larval feeding, (LC50= 0.330) in CDC bottle assay and (LC50= 13.148) in adults feeding (P< 0.05). CONCLUSION: The results recommend the eco-friendly studied extracts as candidates for controlling Cx. pipiens the lymphatic filariasis vector. PMID- 29026860 TI - Evaluation of Correlation between the In Vitro Susceptibility of Field Isolates of Leishmania major and Clinical Outcomes of Meglumine Antimoniate Therapy in Fars Province, Iran. AB - BACKGROUND: This study was designed to detect whether there is a correlation between in vitro susceptibility of field isolates of Leishmania major and the clinical outcomes of meglumine antimoniate (Glucantime(r)) therapy, the mainstay of cutaneous leishmaniasis treatment in Iran. METHODS: Forty-three patients infected with L. major were enrolled in this study from October 2009 to March 2010 and categorized as responsive or unresponsive to Glucantime(r) treatment after receiving the appropriate therapy. Then, intracellular amastigote approach was conducted on these field strains to investigate in vitro drug susceptibility as well. RESULTS: At clinical level, out of 43 patients, 15 were clinically non responsive and 28 were responsive to antimony therapy. All those 28 clinically sensitive strains were susceptible to antimony in the in vitro assay, whereas merely 11 isolates from 15 non-healing isolates were resistant in vitro. Finally, a good correlation (78.9%) with high sensitivity, specificity (100/73) between clinical outcomes and the in vitro susceptibility test was achieved. CONCLUSION: The intracellular amastigote model could be an appropriate assay for evaluation of the in vivo drug sensitivity of field isolates. However, more comprehensive studies with larger sets of isolates are needed to confirm these preliminary data. PMID- 29026863 TI - Assessing the Ovarian Accessory Glands to Determine the Parity of Phlebotomus papatasi, Vector of Zoonotic Cutaneous Leishmaniasis, under Laboratory Condition. AB - BACKGROUND: Zoonotic cutaneous leishmaniasis (ZCL) is a neglected tropical disease prevailed in many rural areas of 17 out of 31 provinces in Iran. The main vector of the disease is Phlebotomus papatasi and the causative agent is Leishmania major in ZCL foci of Iran. In the current study we investigated the validity of accessory glands secretions as an indicator to recognize parous from nulliparous Ph. papatasi females under laboratory conditions. METHODS: Over 235 laboratory-reared females of Ph. papatasi were dissected in 6 groups including: newly emerged, one hour, one day, two days, and three days after blood feeding and also after oviposition under stereo microscope for their parity in 2014-2015. RESULTS: Transparent glands were compatible with nulliparous only in newly emerged sand flies. In sand flies dissected after oviposition, accessory glands were rather large as a result of oviposition though they were transparent. CONCLUSION: The accessory glands secretions could not be as an indicator for distinguishing parous from nulliparous of Ph. papatasi females. PMID- 29026864 TI - Gastroparesis as the Sole Presenting Feature of Neuromyelitis Optica. AB - A 33-year-old African-American woman recently diagnosed with severe idiopathic gastroparesis was readmitted for hypoxic respiratory failure secondary to aspiration pneumonia. A fiber-optic endoscopic evaluation of swallow study revealed severe pharyngeal dysphagia. Brain magnetic resonance imaging showed an ill-defined lesion in the posterior aspect of the medulla concerning for a demyelinating process. Serum neuromyelitis optica immunoglobulin G returned positive. Neuromyelitis optica treatment resulted in the patient's clinical improvement. She is currently on a suppressive regimen of intravenous rituximab and is recovering well. PMID- 29026865 TI - Rare Gastric Cardia Polyp Causing Complete Esophageal Obstruction. AB - A 67-year-old man presented with food impaction and was found to have a gastric polyp obstructing the esophageal outlet. Due to the polyp's location and size, no immediate endoscopic intervention was performed, and the patient returned for intraoperative endoscopy and polypectomy. Cases of gastric polyps causing esophageal obstruction have not been identified in the literature. This case is unique for the location and size of the polyp, necessitating concomitant surgical management. PMID- 29026867 TI - Prevalence of Carbapenem-Resistant Gram-Negative Infections in the United States Predominated by Acinetobacter baumannii and Pseudomonas aeruginosa. AB - BACKGROUND: Carbapenem-resistant (CR) Gram-negative pathogens are recognized as a major health concern. This study examined the prevalence of infections due to 4 CR Gram-negative species (Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Escherichia coli) in the United States and assessed their impact on hospital stays and mortality. METHODS: Hospitalized patients with laboratory-confirmed infection due to any of the 4 Gram-negative pathogens were identified from the Premier Healthcare Database. Proportions of CR were calculated by pathogen and infection site (blood, respiratory, urinary, or other) for the United States as whole and by census regions. Crude and adjusted odds ratios for in-hospital mortality were produced using logistic regression. RESULTS: From 2009 to 2013, 13 262 (4.5%) of 292 742 infections due to these 4 Gram-negative pathogens were CR. Of these CR infections, 82.3% were caused by A. baumannii (22%) or P. aeruginosa (60.3%), while 17.7% were caused by K. pneumoniae or E. coli. CR patients had longer hospital stays than carbapenem susceptible (CS) patients in all pathogen-infection site cohorts, except in the A. baumannii-respiratory cohort. The crude all cause in-hospital mortality was greater for most pathogen-infection site cohorts of the CR group compared with the CS group, especially for A. baumannii infection in the blood (crude odds ratio [OR], 3.91; 95% confidence interval [CI], 2.69-5.70). This difference for the A. baumannii-blood cohort remained after adjusting for the relevant covariates (adjusted OR, 2.46; 95% CI, 1.43-4.22). CONCLUSION: The majority of CR infections and disease burden in the United States was caused by nonfermenters A. baumannii and P. aeruginosa. Patients with CR infections had longer hospital stays and higher crude in-hospital mortality. PMID- 29026868 TI - Antifungal Susceptibility Testing Practices at Acute Care Hospitals Enrolled in the National Healthcare Safety Network, United States, 2011-2015. AB - We assessed availability of antifungal susceptibility testing (AFST) at nearly 4000 acute care hospitals enrolled in the National Healthcare Safety Network. In 2015, 95% offered any AFST, 28% offered AFST at their own laboratory or at an affiliated medical center, and 33% offered reflexive AFST. Availability of AFST improved from 2011 to 2015, but substantial gaps exist in the availability of AFST. PMID- 29026866 TI - A Prospective Observational Study of the Epidemiology, Management, and Outcomes of Skin and Soft Tissue Infections Due to Carbapenem-Resistant Enterobacteriaceae. AB - BACKGROUND: This study was performed to characterize the epidemiology, management, and outcomes of skin and soft tissue infection (SSTI) and colonization due to carbapenem-resistant Enterobacteriaceae (CRE). METHODS: Patients from the Consortium on Resistance Against Carbapenem in Klebsiella and Other Enterobacteriaceae (CRACKLE-1) from December 24, 2011 to October 1, 2014 with wound cultures positive for CRE were included in the study. Predictors of surgical intervention were analyzed. Molecular typing of isolates was performed using repetitive extragenic palindromic polymerase chain reaction (PCR). Carbapenemase genes were detected using PCR. RESULTS: One hundred forty-two patients were included: 62 had SSTI (44%) and 56% were colonized. Mean age was 61 years, and 48% were male: median Charlson score was 3 (interquartile range, 1-5). Forty-eight percent of patients were admitted from long-term care facilities (LTCFs), and 31% were from the community. Two strain types (ST258A and ST258B) were identified (73% of 45 tested). Carbapenemase genes were detected in 40 of 45 isolates (blaKPC-3 [47%], blaKPC-2 [42%]). Sixty-eight patients (48%) underwent surgical intervention, 63% of whom had SSTI. Patients admitted from LTCFs were less likely to undergo surgical intervention (odds ratio [OR], 0.36; 95% confidence interval [CI], 0.18-0.71). In multivariable analysis, among patients with SSTI, those admitted from LTCFs were less likely to undergo debridement (OR, 0.18; 95% CI, 0.04-0.93). CONCLUSIONS: Patients admitted from LTCFs with CRE SSTI were less likely to undergo surgical intervention. Sixteen percent of the patients died, and approximately 50% of survivors required more intensive care upon discharge. These findings suggest a unique, impactful syndrome within the CRE infection spectrum. Further studies are needed to assess the role of surgical debridement in management of CRE-SSTI, particularly among LTCF residents. PMID- 29026870 TI - Comparing Injecting Drug Users with Others Receiving Outpatient Parenteral Antibiotic Therapy. PMID- 29026869 TI - Associations Between Antiretroviral Treatment and Avascular Bone Necrosis: The Swiss HIV Cohort Study. AB - BACKGROUND: HIV-infected individuals have an increased risk of avascular bone necrosis (AVN). Antiretroviral therapy (ART) and particularly protease inhibitors (PI) have been implicated as a risk factor. We aimed to study the associations of ART with the occurrence of AVN among Swiss HIV Cohort Study participants (SHCS). METHODS: We used incidence density sampling to perform a case control study within the Swiss HIV Cohort Study (SHCS) comparing prospectively collected AVN cases and controls by conditional logistic regression analysis. To evaluate the effect of ART, multivariable models were adjusted for HIV transmission risk group, age, alcohol consumption, use of corticosteroids, CD4 nadir, maximum viral load, and pancreatitis. RESULTS: We compared 74 AVN cases and 145 controls. Associations with AVN were shown for heterosexual HIV acquisition (odds ratio [OR], 3.4; 95% confidence interval [CI], 1.1-10), alcohol consumption (OR, 2.7; 95% CI, 1.3-5.7), and hyperlipidemia (OR, 3.6; 95% CI, 1.4-9.6). After adding ART substances to the multivariable base model, there was evidence of an association for treatment with tenofovir (TDF) >1 year (OR, 4.4; 95% CI, 1.4-14) with AVN. Neither exposure to specific frequently prescribed ART combinations or ART drug classes nor cumulative ART exposure showed any associations with AVN. CONCLUSIONS: In the HIV-infected population, a combination of risk factors such as heterosexual HIV acquisition, moderate to severe alcohol intake, and hyperlipidemia seem to contribute to AVN. ART does not seem to be a relevant risk factor for AVN. The association of prolonged TDF exposure with AVN needs to be confirmed. PMID- 29026871 TI - Tigecycline as a Second-Line Agent for Legionnaires' Disease in Severely Ill Patients. AB - Treatment of Legionnaires' disease in severely ill or immunosuppressed patients presents a clinical challenge. Tigecycline (TG) achieves high concentrations intracellularly and has been shown to be effective against L. pneumophila in animal and cell models. We report our experience using TG as second-line therapy. Clinical response was seen in most patients after switching to TG alone or as a combination therapy. PMID- 29026872 TI - Top Questions in ID: Pre-exposure Prophylaxis for HIV. AB - HIV pre-exposure prophylaxis (PrEP) is highly efficacious at preventing HIV acquisition. This review discusses ways to identify candidates for PrEP, recommended PrEP regimens, baseline and follow-up evaluations, applications of PrEP for HIV-serodiscordant couples, resources to address financial barriers, investigational strategies for PrEP, and educational resources for clinicians and patients. PMID- 29026874 TI - Australia and New Zealand Islets and Pancreas Transplant Registry Annual Report 2017-Pancreas Waiting List, Recipients, and Donors. AB - This is a registry report from the Australia and New Zealand Islet and Pancreas Transplant Registry. We report data for all solid organ pancreas transplant activity from inception in 1984 to end of 2016. Data analysis was performed using Stata Software version 14 (StataCorp, College Station, Tex). From 1984 to 2016 a total of 756 solid organ pancreas transplants have been performed in Australia and New Zealand, in 738 individuals. In 2016, 55 people received a pancreas transplant. These transplants were performed in Auckland (4), Monash (22), and Westmead (29). In 2016, 50 transplants were simultaneous pancreas kidney, 4 were pancreas after kidney, and 1 was a pancreas transplant alone. PMID- 29026875 TI - Ethylene Glycol Poisoning Should Not Contraindicate Liver Donation. AB - As the number of patients waiting to receive transplants increases, there is a need to explore all possible donation opportunities. In this case report, we describe the transplantation of a liver from a donor who died after ethylene glycol poisoning into a woman with alcoholic liver disease with cirrhosis and associated ascites. Donor management, including ethanol, fomepizol and haemodialysis, hastened clearance of ethylene glycol from the circulation, and after liver transplantation, the recipient exhibited no adverse effects suggestive of ethylene glycol toxicity, although recipient hepatic artery dissection and thrombosis necessitated retransplantation. Our experience suggests that donor death due to ethylene glycol intoxication should not contraindicate liver transplantation, particularly after appropriate donor management. PMID- 29026873 TI - Graft Growth and Podocyte Dedifferentiation in Donor-Recipient Size Mismatch Kidney Transplants. AB - BACKGROUND: Kidney transplantation is the treatment choice for patients with end stage renal diseases. Because of good long-term outcome, pediatric kidney grafts are also accepted for transplantation in adult recipients despite a significant mismatch in body size and age between donor and recipient. These grafts show a remarkable ability of adaptation to the recipient body and increase in size in a very short period, presumably as an adaptation to hyperfiltration. METHODS: We investigated renal graft growth as well as glomerular proliferation and differentiation markers Kiel-67, paired box gene 2 and Wilms tumor protein (WT1) expression in control biopsies from different transplant constellations: infant donor for infant recipient, infant donor for child recipient, infant donor for adult recipient, child donor for child recipient, child donor for adult recipient, and adult donor for an adult recipient. RESULTS: We detected a significant increase in kidney graft size after transplantation in all conditions with a body size mismatch, which was most prominent when an infant donated for a child. Podocyte WT1 expression was comparable in different transplant conditions, whereas a significant increase in WT1 expression could be detected in parietal epithelial cells, when a kidney graft from a child was transplanted into an adult. In kidney grafts that were relatively small for the recipients, we could detect reexpression of podocyte paired box gene 2. Moreover, the proliferation marker Kiel-67 was expressed in glomerular cells in grafts that increased in size after transplantation. CONCLUSIONS: Kidney grafts rapidly adapt to the recipient size after transplantation if they are transplanted in a body size mismatch constellation. The increase in transplant size is accompanied by an upregulation of proliferation and dedifferentiation markers in podocytes. The different examined conditions exclude hormonal factors as the key trigger for this growth so that most likely hyperfiltration is the key trigger inducing the rapid growth response. PMID- 29026877 TI - Prolonged Delayed Renal Graft Function Secondary to Venous Hypertension. AB - The case of a 39-year-old highly sensitized woman who underwent second renal transplantation after being on warfarin because of a history of frequent thromboses of her left femoral arteriovenous graft (AVG) is reported here. The patient received a flow cytometric positive crossmatch kidney transplant from a deceased donor. Her posttransplant course was complicated by prolonged delayed graft function (DGF) lasting for 9 months. Antibody-mediated rejection occurred in the immediate postoperative period. This resolved after treatment, and resolution was confirmed by repeat biopsy. Despite this, she had persistent DGF and remained dialysis dependent. A computed tomography scan due to the development of perinephric hematoma after posttransplant biopsy demonstrated venous collateralization around the allograft. At 7 months posttransplant, a venogram during declotting of AVG revealed chronic thrombus in the inferior vena cava (IVC) above the level of native renal veins with a venous gradient of 26 mmHg. After declotting of the graft, iliac venoplasty, and subsequent IVC stent, her renal function continues to improve with a most recent creatinine of 1.4 mg/dL at 36 months posttransplant. Venous hypertension secondary to IVC thrombosis in presence of patent femoral AVG should be considered as a rare cause of prolonged DGF. PMID- 29026876 TI - Avoiding ICU Admission by Using a Fast-Track Protocol Is Safe in Selected Adult to-Adult Live Donor Liver Transplant Recipients. AB - BACKGROUND: We evaluated patient characteristics of live donor liver transplant (LDLT) recipients undergoing a fast-track protocol without intensive care unit (ICU) admission versus LDLT patients receiving posttransplant ICU care. METHODS: Of the 153 LDLT recipients, 46 patients were included in our fast-track protocol without ICU admission. Both, fast-tracked patients and ICU-admitted patients were compared regarding donor and patient characteristics, perioperative characteristics, and postoperative outcomes and complications. In a subgroup analysis, we compared fast-tracked patients with patients who were admitted in the ICU for less than 24 hours. RESULTS: Fast-tracked versus ICU patients had a lower model for end-stage liver disease score (13 +/- 4 vs 18 +/- 7; P < 0.0001), lower preoperative bilirubin levels (51 +/- 50 MUmol/L vs 119.4 +/- 137.3 MUmol/L; P < 0.001), required fewer units of packed red blood cells (1.7 +/- 1.78 vs 4.4 +/- 4; P < 0.0001), and less fresh-frozen plasma (2.7 +/- 2 vs 5.8 +/- 5; P < 0.0001) during transplantation. Regarding postoperative outcomes, fast tracked patients presented fewer bacterial infections within 30 days (6.5% [3] vs 29% [28]; P = 0.002), no episodes of pneumonia (0% vs 11.3% [11]; P = 0.02), and less biliary complications within the first year (6% [3] vs 26% [25]; P = 0.001). Also, fast-tracked patients had a shorter posttransplant hospital stay (10.8 +/- 5 vs 21.3 +/- 29; P = 0.002). In the subgroup analysis, fast-tracked vs ICU patients admitted for less than 24 hours had lower requirements of packed red blood cells (1.7 +/- 1.78 vs 3.9 +/- 4; P = 0.001) and fresh-frozen plasma (2.7 +/- 2 vs 5.8 +/- 4.5; P = 0.0001). CONCLUSIONS: Fast-track of selected patients after LDLT is safe and feasible. An objective score to perioperatively select LDLT recipients amenable to fast track is yet to be determined. PMID- 29026878 TI - Robotic-Assisted Live Donor Ileal Segmentectomy for Intestinal Transplantation. AB - BACKGROUND: Every effort should be made to optimize surgical techniques and to minimize potential morbidity rates associated with live donor operations. Advances in a minimally invasive approach by robotic surgery to donor nephrectomy have raised the possibility of applying this technique to live donor bowel resections for intestinal transplantation. METHODS: We report the first 5 consecutive cases of a robotic-assisted live donor ileal segmentectomy. We describe the technical aspects of the procedure, discuss the rationale for considering this option, and evaluate potential advantages of this approach. RESULTS: We found that this new approach is associated with less postoperative discomfort, a shorter hospital length of stay, and a faster recovery of bowel function compared to our previous open surgery. CONCLUSIONS: Our initial experience suggests that robotic surgery is a safe and feasible procedure for live donor ileal resection for intestinal transplantation and is a useful alternative to conventional open surgery. PMID- 29026879 TI - Tsunamis in the geological record: Making waves with a cautionary tale from the Mediterranean. AB - From 2000 to 2015, tsunamis and storms killed more than 430,000 people worldwide and affected a further >530 million, with total damages exceeding US$970 billion. These alarming trends, underscored by the tragic events of the 2004 Indian Ocean catastrophe, have fueled increased worldwide demands for assessments of past, present, and future coastal risks. Nonetheless, despite its importance for hazard mitigation, discriminating between storm and tsunami deposits in the geological record is one of the most challenging and hotly contended topics in coastal geoscience. To probe this knowledge gap, we present a 4500-year reconstruction of "tsunami" variability from the Mediterranean based on stratigraphic but not historical archives and assess it in relation to climate records and reconstructions of storminess. We elucidate evidence for previously unrecognized "tsunami megacycles" with three peaks centered on the Little Ice Age, 1600, and 3100 cal. yr B.P. (calibrated years before present). These ~1500-year cycles, strongly correlated with climate deterioration in the Mediterranean/North Atlantic, challenge up to 90% of the original tsunami attributions and suggest, by contrast, that most events are better ascribed to periods of heightened storminess. This timely and provocative finding is crucial in providing appropriately tailored assessments of coastal hazard risk in the Mediterranean and beyond. PMID- 29026881 TI - Herbivory enables marine communities to resist warming. AB - Climate change can influence ecosystems via both direct effects on individual organisms and indirect effects mediated by species interactions. However, we understand little about how these changes will ripple through ecosystems or whether there are particular ecological characteristics that might make ecosystems more susceptible-or more resistant-to warming. By combining in situ experimental warming with herbivore manipulations in a natural rocky intertidal community for over 16 months, we show that herbivory regulates the capacity of marine communities to resist warming. We found that limpet herbivores helped to preserve trophic and competitive interactions under experimental warming, dampening the impact of warming on overall community composition. The presence of limpets facilitated the survival of the main habitat modifier (barnacles) under warmer conditions, which, in turn, facilitated the presence of a consumer guild. When limpets were removed, environmental warming altered trophic, competitive, and facilitative interactions, with cascading impacts on community succession and stability. We conclude that conserving trophic structure and the integrity of interaction networks is vitally important as Earth continues to warm. PMID- 29026880 TI - Adaptive social strategies in a solitary carnivore. AB - Cost-benefit trade-offs for individuals participating in social behaviors are the basis for current theories on the evolution of social behaviors and societies. However, research on social strategies has largely ignored solitary animals, in which we assume that rare interactions are explained by courtship or territoriality or, in special circumstances, resource distributions or kinship. We used directed network analysis of conspecific tolerance at food sources to provide evidence that a solitary carnivore, the puma (Puma concolor), exhibited adaptive social strategies similar to more social animals. Every puma in our analysis participated in the network, which featured densely connected communities delineated by territorial males. Territorial males also structured social interactions among pumas. Contrary to expectations, conspecific tolerance was best characterized by direct reciprocity, establishing a fitness benefit to individuals that participated in social behaviors. However, reciprocity operated on a longer time scale than in gregarious species. Tolerance was also explained by hierarchical reciprocity, which we defined as network triangles in which one puma (generally male) received tolerance from two others (generally females) that also tolerated each other. Hierarchical reciprocity suggested that males might be cheating females; nevertheless, we suspect that males and females used different fitness currencies. For example, females may have benefited from tolerating males through the maintenance of social niches that support breeding opportunities. Our work contributes evidence of adaptive social strategies in a solitary carnivore and support for the applicability of theories of social behavior across taxa, including solitary species in which they are rarely tested. PMID- 29026882 TI - Efficient measurement and factorization of high-order drug interactions in Mycobacterium tuberculosis. AB - Combinations of three or more drugs are used to treat many diseases, including tuberculosis. Thus, it is important to understand how synergistic or antagonistic drug interactions affect the efficacy of combination therapies. However, our understanding of high-order drug interactions is limited because of the lack of both efficient measurement methods and theoretical framework for analysis and interpretation. We developed an efficient experimental sampling and scoring method [diagonal measurement of n-way drug interactions (DiaMOND)] to measure drug interactions for combinations of any number of drugs. DiaMOND provides an efficient alternative to checkerboard assays, which are commonly used to measure drug interactions. We established a geometric framework to factorize high-order drug interactions into lower-order components, thereby establishing a road map of how to use lower-order measurements to predict high-order interactions. Our framework is a generalized Loewe additivity model for high-order drug interactions. Using DiaMOND, we identified and analyzed synergistic and antagonistic antibiotic combinations against Mycobacteriumtuberculosis. Efficient measurement and factorization of high-order drug interactions by DiaMOND are broadly applicable to other cell types and disease models. PMID- 29026883 TI - Increased weight gain by C-section: Functional significance of the primordial microbiome. AB - Epidemiological evidence supports a direct association between early microbiota impact-including C-section-and obesity. We performed antibiotic-free, fostered C sections and determined the impact on the early microbiota and body weight during development. Mice in the C-section group gained more body mass after weaning, with a stronger phenotype in females. C-section-born mice lacked the dynamic developmental gut microbiota changes observed in control mice. The results demonstrate a causal relationship between C-section and increased body weight, supporting the involvement of maternal vaginal bacteria in normal metabolic development. PMID- 29026884 TI - Review of the potential use of blood neuro-biomarkers in the diagnosis of mild traumatic brain injury. AB - Head injury is a common presenting complaint amongst emergency department patients. To date, there has been no widespread utilization of neuro-biomarkers to aid the diagnosis of traumatic brain injury. This review article explores which neuro-biomarkers could be used in the emergency department in aiding the clinical diagnosis of mild traumatic brain injury. Based on the available evidence, the most promising neuro-biomarkers appear to be Glial fibrillary acidic protein (GFAP) and Ubiquitin C-Terminal Hydrolase Isozyme L1 (UCH-L1) as these show significant rises in peripheral blood levels shortly after injury and these have been demonstrated to correlate with long-term clinical outcomes. Treatment strategies for minor traumatic brain injury in the emergency department setting are not well developed. The introduction of blood neuro-biomarkers could reduce unnecessary radiation exposure and provide an opportunity to improve the care of this patient group. PMID- 29026885 TI - Emergency department point-of-care ultrasonography improves time to pericardiocentesis for clinically significant effusions. AB - OBJECTIVE: Our objective was to determine the utility of point-of-care ultrasound (POCUS) to identify and guide treatment of tamponade or clinically significant pericardial effusions in the emergency department (ED). METHODS: This was a retrospective cohort study of non-trauma patients who were diagnosed with large pericardial effusions or tamponade by the ED physician using POCUS. The control group was composed of those patients later diagnosed on the medical wards or incidentally in the ED by other means such as a computed tomography. The following data were abstracted from the patient's file: demographics, medical background, electrocardiogram results, chest radiograph readings, echocardiogram results, and patient outcomes. RESULTS: There were 18 patients in the POCUS arm and 55 in the control group. The POCUS arm had a decreased time to pericardiocentesis (11.3 vs. 70.2 hours, P=0.055) as well as a shorter length of stay (5.1 vs. 7.0 days, P=0.222). A decreased volume of pericardial fluid was drained (661 vs. 826 mL, P=0.139) in the group diagnosed by POCUS. CONCLUSION: This study suggests that POCUS may effectively identify pericardial effusions and guide appropriate treatment, leading to a decreased time to pericardiocentesis and decreased length of hospital stay. Pericardial tamponade or a large pericardial effusion should be considered in all patients presenting to the ED with clinical, radiographic, or electrocardiographic signs of cardiovascular compromise. PMID- 29026886 TI - Clinical characteristics of acute drug-induced dystonia in pediatric patients. AB - OBJECTIVE: Dystonia is a movement disorder in which muscles contract uncontrollably. Acute drug-induced dystonia (DID) can be diagnosed through detailed history taking and physical examination. This study aimed to identify the clinical characteristics of DID in children, which could help emergency physicians diagnose these conditions more efficiently. METHODS: We reviewed medical records of children aged below 18 years diagnosed with drug-related dystonia after discharge from the emergency department over 10 years. We collected the patients' age, sex, suspected causative drugs, initial diagnosis of the prescribing physician, duration of drug-taking, diagnostic evaluations, treatment methods, and prognosis. RESULTS: Seventy-nine patients were enrolled. The mean age was 11.3+/-4.9 years (range, 4.0 months to 18.0 years), and 41 patients (51.9%) were boys. The most common cause of DID was gastrointestinal medications in 45 patients (57.0%), followed by antipsychotics in 23 patients (29.1%). Eleven (24.4%) out of 45 patients with DID due to gastrointestinal medications had the initial diagnosis of upper respiratory infection, and seven (30.4%) out of 23 patients with DID due to antipsychotics had the initial diagnosis of non-psychotic diseases. Younger children received more diagnostic procedures and were more frequently admitted. A benzodiazepine (67.1%) was the most common single drug for treatment. CONCLUSION: Physicians should not only acknowledge DID in order to reduce unnecessary workup and admission, but also know that antiemetics and antipsychotics are common causes of DID. Therefore, physicians should try to avoid multidrug prescriptions in children. PMID- 29026887 TI - Single-dose intravenous sodium valproate (Depakine) versus dexamethasone for the treatment of acute migraine headache: a double-blind randomized clinical trial. AB - OBJECTIVE: Migraine headache is a chronic and disabling condition in adults. Some studies have investigated the efficacy of sodium valproate in the treatment of acute migraine, but the effectiveness and tolerability of intravenous valproate as abortive therapy remains unclear. This study aimed to evaluate the effects of sodium valproate and dexamethasone in the treatment of acute migraine. METHODS: We conducted a double-blind randomized clinical trial including 90 patients aged 18 to 65 years with acute migraine headache but no aura. Patients were randomized to receive intravenous dexamethasone (8 mg) or sodium valproate (400 mg) diluted into 4 mL of normal saline. The primary outcome measure was pain relief after 0.5, 1, 3, or 6 hours after administration. The secondary outcome criteria were the associated symptom recovery, rate of headache recurrence after 24 hours, and medication side effects. Pearson's chi square and the t-test were employed in the data analysis. RESULTS: Of the 90 patients, 80 were investigated. The percentage of headache improvement at 0.5 hours after treatment was 55% and 67.5% in the sodium valproate and dexamethasone groups, respectively. Before-treatment and 0.5 hour after treatment pain severity visual analog scale scores were 9.05+/-0.90 and 3.8+/-3.09 in the sodium valproate group and 8.92+/-0.79 and 3.10+/-2.73 in the dexamethasone group, respectively. There were no significant intergroup differences. CONCLUSION: This randomized clinical trial showed that the intravenous injection of sodium valproate 400 mg has similar effects to those of dexamethasone for improving acute migraine headache. PMID- 29026888 TI - Korean Shock Society septic shock registry: a preliminary report. AB - OBJECTIVE: To evaluate the clinical characteristics, therapeutic interventions, and outcomes of patients with septic shock admitted to the emergency department (ED). METHODS: This study was a preliminary, descriptive analysis of a prospective, multi-center, observational registry of the EDs of 10 hospitals participating in the Korean Shock Society. Patients aged 19 years or older who had a suspected or confirmed infection and evidence of refractory hypotension or hypoperfusion were included. RESULTS: A total of 468 patients were enrolled (median age, 71.3 years; male, 55.1%; refractory hypotension, 82.9%; hyperlactatemia without hypotension, 17.1%). Respiratory infection was the most common source of infection (31.0%). The median Sepsis-related Organ Failure Assessment score was 7.5. The sepsis bundle compliance was 91.2% for lactate measurement, 70.3% for blood culture, 68.4% for antibiotic administration, 80.3% for fluid resuscitation, 97.8% for vasopressor application, 68.0% for central venous pressure measurement, 22.0% for central venous oxygen saturation measurement, and 59.2% for repeated lactate measurement. Among patients who underwent interventions for source control (n=117, 25.1%), 43 (36.8%) received interventions within 12 hours of ED arrival. The in-hospital, 28-day, and 90-day mortality rates were 22.9%, 21.8%, and 27.1%, respectively. The median ED and hospital lengths of stay were 6.8 hours and 12 days, respectively. CONCLUSION: This preliminary report revealed a mortality of over 20% in patients with septic shock, which suggests that there are areas for improvement in terms of the quality of initial resuscitation and outcomes of septic shock patients in the ED. PMID- 29026889 TI - Study design of Real World Evidence for Treatment of Hyperkalemia in the Emergency Department (REVEAL-ED): a multicenter, prospective, observational study. AB - OBJECTIVE: Hyperkalemia affects up to 10% of hospitalized patients and, if left untreated, can lead to serious cardiac arrhythmias or death. Although hyperkalemia is frequently encountered in the emergency department (ED), and is potentially life-threatening, standard of care for the treatment is poorly defined, with little supporting evidence. The main objectives of this observational study are to define the overall burden of hyperkalemia in the ED setting, describe its causes, the variability in treatment patterns and characterize the effectiveness and safety of ED standard of care therapies used in the United States. METHODS: This is an observational study evaluating the management of hyperkalemia in the ED. Two hundred and three patients who presented to the ED with a potassium value >=5.5 mmol/L were enrolled in the study at 14 sites across the United States. Patients were treated per standard of care practices at the discretion of the patient's physician. In patients who received a treatment for hyperkalemia, blood samples were drawn at pre-specified time points and serum potassium values were recorded. The change in potassium over 4 hours and the adverse events after standard of care treatment were analyzed. RESULTS AND CONCLUSION: This article describes the background, rationale, study design, and methodology of the REVEAL-ED (Real World Evidence for Treatment of Hyperkalemia in the Emergency Department) trial, a multicenter, prospective, observational study evaluating contemporary management of patients admitted to the ED with hyperkalemia. PMID- 29026890 TI - Changes in histopathology and tumor necrosis factor-alpha levels in the hearts of rats following asphyxial cardiac arrest. AB - OBJECTIVE: Post cardiac arrest (CA) syndrome is associated with a low survival rate in patients who initially have return of spontaneous circulation (ROSC) after CA. The aim of this study was to examine the histopathology and inflammatory response in the heart during the post CA syndrome. METHODS: We induced asphyxial CA in male Sprague-Dawley rats and determined the survival rate of these rats during the post resuscitation phase. RESULTS: Survival of the rats decreased after CA: 66.7% at 6 hours, 36.7% at 1 day, and 6.7% at 2 days after ROSC following CA. The rats were sacrificed at 6 hours, 12 hours, 1 day, and 2 days after ROSC, and their heart tissues were examined. Histopathological scores increased at 12 hours post CA and afterwards, histopathological changes were not significant. In addition, levels of tumor necrosis factor-alpha immunoreactivity gradually increased after CA. CONCLUSION: The survival rate of rats 2 days post CA was very low, even though histopathological and inflammatory changes in the heart were not pronounced in the early stage following CA. PMID- 29026891 TI - Effect of emergency medical service use on time interval from symptom onset to hospital admission for definitive care among patients with intracerebral hemorrhage: a multicenter observational study. AB - OBJECTIVE: This study evaluated whether emergency medical service (EMS) use was associated with early arrival and admission for definitive care among intracerebral hemorrhage (ICH) patients. METHODS: Patients with ICH were enrolled from 29 hospitals between November 2007 and December 2012, excluding those patients with subarachnoid hemorrhage, traumatic ICH, and missing information. The patients were divided into four groups based on visit type to the definitive hospital emergency department (ED): direct visit by EMS (EMS-direct), direct visit without EMS (non-EMS-direct), transferred from a primary hospital by EMS (EMS-transfer), and transferred from a primary hospital without EMS (non-EMS transfer). The outcomes were the proportions of participants within early (<1 hr) definitive hospital ED arrival from symptom onset (pS2ED) and those within early (<4 hr) admission from symptom onset (pS2AD). Adjusted odds ratios were calculated to determine the association between EMS use and outcomes with and without inter-hospital transfer. RESULTS: A total of 6,564 patients were enrolled. The adjusted odds ratios (95% confidence intervals) for pS2ED were 22.95 (17.73-29.72), 1.11 (0.67-1.84), and 7.95 (6.04-10.46) and those for pS2AD were 5.56 (4.70-6.56), 0.96 (0.71-1.30), and 2.35 (1.94-2.84) for the EMS-direct, EMS-transfer, and non-EMS-direct groups compared with the non-EMS-transfer group, respectively. Through the interaction model, EMS use was significantly associated with early arrival and admission among direct visiting patients but not with transferred patients. CONCLUSION: EMS use was significantly associated with shorter time intervals from symptom onset to arrival and admission at a definitive care hospital. However, the effect disappeared when patients were transferred from a primary hospital. PMID- 29026892 TI - Prompt diagnosis of ST-elevation myocardial infarction with papillary muscle rupture by point-of-care ultrasound in the emergency department. AB - A previously healthy 61-year-old man presented to the emergency department with chest pain and dyspnoea for 6 hours. Examination revealed distress with an apical pansystolic murmur. Initial electrocardiogram showed sinus tachycardia and ST elevation in leads II, III, and aVF compatible with an inferior ST-elevation myocardial infarction. Point-of-care echocardiography in the emergency department showed a flail anterior mitral leaflet and severe mitral regurgitation, leading to a provisional diagnosis of papillary muscle rupture. Emergency cardiac catheterization showed 100%, 80%, and 70% occlusion of the middle right coronary, left anterior descending, and left circumflex arteries, respectively. An emergency triple vessel coronary artery bypass grafting and mitral valve replacement was performed. Posteromedial papillary muscle rupture resulting in mitral regurgitation was confirmed intraoperatively. The patient recovered uneventfully. In the absence of primary percutaneous coronary intervention, thrombolysis decisions should be made with extreme caution if mechanical complications of ST-elevation myocardial infarction are suspected. PMID- 29026893 TI - Descending necrotizing mediastinitis after a trigger point injection. AB - Descending necrotizing mediastinitis (DNM) is a rare form of mediastinal infection. Most cases are associated with esophageal rupture. DNM after a trigger point injection in the upper trapezius has not been described previously. We present a case of DNM after a trigger point injection in the upper trapezius. A 70-year-old man visited the emergency department with chest discomfort and fever after a trigger point injection in the left upper trapezius. Chest computed tomography showed evidence of DNM, and antibiotic therapy was immediately administered intravenously. Because of the risk of sudden death, poor prognosis due to underlying disease, and his age, he declined surgical treatment and died of septic shock. Although trigger point injections are generally considered safe, caution should be used in patients with an underlying disease or in the elderly. Early diagnosis, broad-spectrum antibiotics, and aggressive surgical management are essential to improve the prognosis. PMID- 29026894 TI - Hounsfield units in pseudo subarachnoid hemorrhage: worth looking for. PMID- 29026895 TI - Non-radiographic methods of measuring global sagittal balance: a systematic review. AB - BACKGROUND: Global sagittal balance, describing the vertical alignment of the spine, is an important factor in the non-operative and operative management of back pain. However, the typical gold standard method of assessment, radiography, requires exposure to radiation and increased cost, making it unsuitable for repeated use. Non-radiologic methods of assessment are available, but their reliability and validity in the current literature have not been systematically assessed. Therefore, the aim of this systematic review was to synthesise and evaluate the reliability and validity of non-radiographic methods of assessing global sagittal balance. METHODS: Five electronic databases were searched and methodology evaluated by two independent reviewers using the13-item, reliability and validity, Brink and Louw critical appraisal tool. RESULTS: Fourteen articles describing six methodologies were identified from 3940 records. The six non radiographic methodologies were biophotogrammetry, plumbline, surface topography, infra-red motion analysis, spinal mouse and ultrasound. Construct validity was evaluated for surface topography (R = 0.49 and R = 0.68, p < 0.001), infra-red motion-analysis (ICC = 0.81) and plumbline testing (ICC = 0.83). Reliability ranged from moderate (ICC = 0.67) for spinal mouse to very high for surface topography (Cronbach alpha = 0.985). Measures of agreement ranged from 0.9 mm (plumbline) to 22.94 mm (infra-red motion-analysis). Variability in study populations, reporting parameters and statistics prevented a meta-analysis. CONCLUSIONS: The reliability and validity of the non-radiographic methods of measuring global sagittal balance was reported within 14 identified articles. Based on this limited evidence, non-radiographic methods appear to have moderate to very high reliability and limited to three methodologies, moderate to high validity. The overall quality and methodological approaches of the included articles were highly variable. Further research should focus on the validity of non-radiographic methods with a greater adherence to reporting actual and clinically relevant measures of agreement. PMID- 29026896 TI - Tau and Pet/Mri Imaging Biomarkers for Detecting and Diagnosing Early Dementia. AB - Specific objective of this project is to quantify the neuropathological tau depositions in brain regions and to investigate primary age-related tau pathology and associations with amyloid and glucose-metabolism, neurocognitive tests and MRI metrics. Preliminary results demonstrated higher temporal deposition especially in the hippocampus and the inferior temporal regions compared to mean cortical deposition. Quantitative Braak stage-based regional analyses found highest tau deposition in the Braak stage II in the preclinical samples. There was significant age related higher tau deposition in temporal cortex, while non significant correlation in mean cortical region. Significant correlations were found between tau deposition and memory as well as executive function scores, especially from middle and inferior temporal cortex; and significant correlations between tau and MRI metrics including diffusion, perfusion, functional and structural connectivities. Our results confirm current notion of this new tau tracer for reliably and consistently labeling and quantifying in vivo human taupathy in early dementia. PMID- 29026897 TI - cis-Thioindigo (TI) - a new ligand with accessible radical anion and dianion states. Strong magnetic coupling in the {[TI-(MU2-O),(MU-O)]Cp*Cr}2 dimers. AB - Reaction of decamethylchromocene (Cp*2Cr) with thioindigo (TI) yields a coordination complex {[TI-(MU2-O), (MU-O)]Cp*Cr}2.C6H14 (1) in which one Cp* ligand in Cp*2Cr is substituted by TI. TI adopts cis-conformation in 1 allowing the coordination of both carbonyl groups to chromium. Additionally, one oxygen atom of TI becomes a MU2-bridge for two chromium atoms to form {[TI-(MU2-O), (MU O)]Cp*Cr}2 dimers with a CrCr distance of 3.12 A. According to magnetic data, diamagnetic TI2- dianions and two Cr3+ atoms with a high S = 3/2 spin state are present in a dimer allowing strong antiferromagnetic coupling between two Cr3+ spins with an exchange interaction of -35.4 K and the decrease of molar magnetic susceptibility below 140 K. Paramagnetic TI- radical anions with the S = 1/2 spin state have also been obtained and studied in crystalline {cryptand[2,2,2](Na+)}(TI-) (2) salt showing that both radical anion and dianion states are accessible for TI. PMID- 29026898 TI - Controlling azobenzene photoswitching through combined ortho-fluorination and amination. AB - We present a series of visible-light-absorbing azobenzene photoswitches with cis lifetimes ranging from one second to three days. We combine ortho-fluorination to control the cis-lifetimes, and ortho-amination to boost the visible-light absorption. The synthesis is accomplished by selectively replacing one or more ortho-fluorines with amines in the ortho-fluoroazobenzene precursors. PMID- 29026899 TI - Few-layered metallic 1T-MoS2/TiO2 with exposed (001) facets: two-dimensional nanocomposites for enhanced photocatalytic activities. AB - Titanium dioxide (TiO2) with exposed (001) facets (TiO2(001)) has attractive photocatalytic properties. However, the high recombination rate of the photo excited charge carriers on this surface often limits its application. Here, we report that a few-layered 1T-MoS2 coating on TiO2(001) nanosheets (abbreviated as MST) can be a promising candidate that overcomes some of the challenges of TiO2(001). Computational and experimental results demonstrate that MST as a photocatalyst exhibits a significantly low-charge recombination rate as well as excellent long-term durability. The synthesized MST 2D nanocomposites show a 31.9% increase in photocatalytic activity for hydrogen (H2) production relative to the counterpart TiO2(001). MST offers a new route for further improvement of the photocatalytic activity of TiO2 with exposed high energy facets. PMID- 29026900 TI - A series of sulfonic acid functionalized mixed-linker DUT-4 analogues: synthesis, gas sorption properties and catalytic performance. AB - In this work, we present the successful synthesis of a series of sulfonic acid functionalized mixed-linker metal-organic frameworks (MOFs) having the DUT-4 topology by using different ratios of 2,6-naphthalenedicarboxylic acid (H2-NDC) and 4,8-disulfonaphthalene-2,6-dicarboxylic acid (H2-NDC-2SO3H) in one-pot reactions. The obtained materials were fully characterized and their CO2 adsorption properties at low and high pressures were studied and compared with those of the pristine DUT-4 material. Generally, the CO2 adsorption capacities range from 3.28 and 1.36 mmol g-1 for DUT-4 to 1.54 and 0.78 mmol g-1 for DUT-4 SO3H (50) up to 1 bar at 273 K and 303 K, respectively. Computational calculations corroborated the structural changes of the material in function of the loading of sulfonic acid groups. Furthermore, due to the strong Bronsted acid character, the resulting sulfonic acid based MOF material was evaluated as a catalyst for the ring opening of styrene oxide with methanol as a nucleophile under mild conditions, showing almost full conversion (99%) after 5 hours of reaction. A hot filtration experiment demonstrated that the catalysis occurred heterogeneously and the catalyst could be recovered and reused for multiple runs without significant loss in activity and crystallinity. PMID- 29026901 TI - Dietary iron loading negatively affects liver mitochondrial function. AB - Iron is an essential co-factor for several metabolic processes, including mitochondrial respiration, and mitochondria are the major sites of iron utilization. Cellular iron homeostasis must be tightly regulated, as intracellular iron deficiency can lead to insufficient energy production, whereas iron overload triggers ROS (reactive oxygen species) formation via the Fenton reaction. So far little is known on how iron imbalances affect mitochondrial function in vivo and the impact of the genotype on that, we studied the effects of dietary iron loading on mitochondrial respiratory capacity in liver by comparing two genetically divergent mouse strains, namely C57BL/6N and FVB mice. Both mouse strains differed in their basal iron levels and their metabolic responses to iron loading as determined by expression of iron trafficking proteins (ferritin was increased in livers of animals receiving high iron diet) as well as tissue iron content (2-fold increase, FVB p = 0.0013; C57BL/6N p = 0.0022). Dietary iron exposure caused a significant impairment of mitochondrial oxidative phosphorylation, especially regarding OXPHOS capacity (FVB p = 0.0006; C57BL/6N p = 0.0087) and S-ETS capacity (FVB p = 0.0281; C57BL/6N p = 0.0159). These effects were more pronounced in C57BL/6N than in FVB mice and were paralleled by an iron mediated induction of oxidative stress in mitochondria. The increased susceptibility of C57BL6/N mice to iron loading may be due to reduced expression of anti-oxidant defense mechanisms and altered iron trafficking upon dietary challenge pointing to a role of genetic modifiers for cellular and mitochondrial iron trafficking. Finally, iron-mediated induction of mitochondrial oxidative stress and reduction of oxidative phosphorylation may underlie fatigue in subjects with iron loading diseases. PMID- 29026903 TI - The effect of cognitive demand on performance of an executive function task following wild blueberry supplementation in 7 to 10 years old children. AB - The cognitive benefits of acute flavonoid interventions have been well documented, however, research to date has found that, depending on developmental stage, these benefits manifest themselves in different cognitive domains. It is argued that the lack of global cognitive effects following flavonoid intervention may be a result of insufficient task sensitivity for those domains where no benefits are found. In children, executive function is a cognitive domain which has shown little apparent benefit following flavonoid intervention. Here, we describe a Modified Attention Network Task (MANT) designed to vary levels of cognitive demand across trials in order to investigate whether flavonoid related benefits can be shown for executive function when task sensitivity is carefully manipulated. Twenty-one children were recruited to a double blind cross-over study consuming 30 g freeze dried blueberry powder (WBB) or placebo before being tested at 3 hours. Performance in the WBB condition was found to be significantly faster in comparison to placebo particularly on more cognitively demanding incongruent and high load trials. Trials in which a visual cue alerted participants to the imminent appearance of the target also showed better performance following WBB administration. We conclude that WBB administration can enhance executive function during demanding elements of a task, but that the complexity and demand of the task as a whole may be equally important to performance. PMID- 29026902 TI - Exploring the origins of selectivity in soluble epoxide hydrolase from Bacillus megaterium. AB - Epoxide hydrolase (EH) enzymes catalyze the hydration of racemic epoxides to yield their corresponding vicinal diols. These enzymes present different enantio- and regioselectivity depending upon either the substrate structure or the substitution pattern of the epoxide ring. In this study, we computationally investigate the Bacillus megaterium epoxide hydrolase (BmEH)-mediated hydrolysis of racemic styrene oxide (rac-SO) and its para-nitro styrene oxide (rac-p-NSO) derivative using density functional theory (DFT) and an active site cluster model consisting of 195 and 197 atoms, respectively. Full reaction mechanisms for epoxide ring opening were evaluated considering the attack at both oxirane carbons and considering two possible orientations of the substrate at the BmEH active site. Our results indicate that for both SO and p-NSO substrates the BmEH enantio- and regioselectivity is opposite to the inherent (R)-BmEH selectivity, the attack at the benzylic position (C1) of the (S)-enantiomer being the most favoured chemical outcome. PMID- 29026904 TI - One-step functionalization of magnetic nanoparticles with 4-mercaptophenylboronic acid for a highly efficient analysis of N-glycopeptides. AB - A very simple and amazing approach was proposed to synthesize MPBA functionalized magnetic nanoparticles via the interaction between Fe and SH, and the as-prepared nanoparticles were successfully applied for the efficient analysis of glycopeptides in complex bio-samples with sensitivity and selectivity. PMID- 29026905 TI - Imaging Abeta(1-42) fibril elongation reveals strongly polarised growth and growth incompetent states. AB - The major hallmark of Alzheimer's disease is the deposition of plaques of amyloid fibrils formed from amyloid-beta (Abeta) peptides. Kinetic studies have contributed significantly towards a mechanistic understanding of amyloid fibril self-assembly, however dynamic features of the aggregation process cannot be captured using ensemble methods. Here we present an assay for imaging Abeta42 aggregation dynamics at the single fibril level, allowing for the quantitative extraction of concentration and temperature dependent kinetic parameters. From direct observation of elongation using TIRF and super-resolution optical microscopy, we find that Abeta42 fibril growth is strongly polarized, with fast and slow growing ends arising from different elongation rates, but also from a growth incompetent state, which dominates the process at the slow growing end. Our findings reveal the surprising complexity of the Abeta42 fibril elongation reaction at the microscopic level. PMID- 29026906 TI - Recognition-driven chemical labeling of endogenous proteins in multi-molecular crowding in live cells. AB - Endogenous protein labeling is one of the most invaluable methods for studying the bona fide functions of proteins in live cells. However, multi-molecular crowding conditions, such as those that occur in live cells, hamper the highly selective chemical labeling of a protein of interest (POI). We herein describe how the efficient coupling of molecular recognition with a chemical reaction is crucial for selective protein labeling. Recognition-driven protein labeling is carried out by a synthetic labeling reagent containing a protein (recognition) ligand, a reporter tag, and a reactive moiety. The molecular recognition of a POI can be used to greatly enhance the reaction kinetics and protein selectivity, even under live cell conditions. In this review, we also briefly discuss how such selective chemical labeling of an endogenous protein can have a variety of applications at the interface of chemistry and biology. PMID- 29026907 TI - A two-dimensional layered CdS/C2N heterostructure for visible-light-driven photocatalysis. AB - In this work, we employ hybrid density functional theory calculations to design a two-dimensional layered CdS/C2N heterostructure for visible light photocatalytic water splitting to produce hydrogen. The calculation results show that the conduction band minimum (CBM) and the valence band maximum (VBM) of C2N monolayers are lower than those of CdS nanosheets by about 0.76 eV and 0.44 eV, respectively. The type-II band alignment, density of states, Bader charge analysis, and charge density difference of the CdS/C2N heterostructure indicate that the photogenerated electrons migrate from the CdS monolayer to the C2N monolayer, favoring the separation and transfer of photogenerated charge carriers, which restrains the recombination of photogenerated carriers and enhances the photocatalytic efficiency. The calculated band gap and optical absorption spectra reveal that the two-dimensional layered CdS/C2N heterostructure may be a potential photocatalyst for photo-electrochemical water splitting because of its appropriate band gap and excellent visible light absorption behavior. Moreover, the electronic and optical properties of the CdS/C2N heterostructure can be effectively modulated by the strain. These findings suggest that the C2N sheets are a promising candidate as metal-free co catalysts for CdS photocatalysts, and also provide valuable information for experimentalists to design highly active and efficient visible light photocatalysts for water splitting. PMID- 29026908 TI - Chiral N,N'-dioxide/Sc(OTf)3 complex-catalyzed asymmetric dearomatization of beta naphthols. AB - An efficient N,N'-dioxide-scandium(iii) complex catalytic system has been developed for the asymmetric dearomatization of beta-naphthols through conjugate addition to alkynones. A variety of Z-predominated beta-naphthalenone compounds were obtained in moderate to high yields with excellent enantioselectivities (up to 98% ee). Moreover, a possible transition state was proposed to explain the origin of the stereoselectivity. PMID- 29026915 TI - ? PMID- 29026916 TI - ? PMID- 29026914 TI - Author Correction: Emotional faces influence evaluation of natural and transformed food. AB - This article unfortunately contained two mistakes. PMID- 29026917 TI - [Fractures of the lower extremities in childhood : Part 2: lower leg and ankle fractures]. AB - The treatment of pediatric patients in trauma surgery is a special situation in every aspect. For deciding on the correct treatment of fractures of the lower leg and ankle joint, various parameters, such as residual growth rate, skeletal age and height of the patient are decisive. The differences between fractures in children and adolescents are the open epiphyseal plate and the resulting residual growth. The bones of young children have a higher healing tendency and a greater potential for correction than in adolescents. Especially in the lower leg and the ankle joint, the potential for correction is decisive for the healing of fractures and for possible development of growth disorders. The limits of tolerance concerning axial malalignments and the expected spontaneous potential for correction must play an essential role for further treatment with conservative or operative therapy. This article deals with the special features of pediatric fractures of the lower leg and ankle joint. PMID- 29026918 TI - Correction to: 4-Chloro-3-nitro-N-butylbenzenesulfonamide acts on KV3.1 channels by an open-channel blocker mechanism. AB - Unfortunately, grey trace on Figure 2c was missing in the original publication of the article. PMID- 29026919 TI - Correction to: Transcriptome profiling of fully open flowers in a frost-tolerant almond genotype in response to freezing stress. AB - In the original publication of the article, the affiliation of the third author has been incorrectly published as University of Yazd. However, the correct affiliation is Yazd University. PMID- 29026920 TI - Immunotherapy as an Option for Cancer Treatment. AB - The progress in melanoma immunotherapy highlights the importance of immunotherapy for cancer treatment. Although the concept of immunotherapy emerged in the beginning of the twentieth century, the end of the century signaled the start of modern immunotherapy, which has recently allowed a staggering progress in the field of cancer immunotherapy. Currently, there is a wide variety of immunotherapeutic approaches and critical improvements are continually being made. Among different immunotherapeutic strategies, therapies based on the blockade of immune checkpoint molecules have shown unparalleled efficacy in late stage cancer patients. Pre-clinical research using ex vivo and in vivo approaches demonstrates the promise of numerous novel strategies for the immunotherapy of cancer. PMID- 29026922 TI - Erratum to: Innovative technology shows impact of glycaemic control on peripheral retinal vessels in adolescents with type 1 diabetes. PMID- 29026923 TI - Nonhuman Primate Models for Studies of AIDS Virus Persistence During Suppressive Combination Antiretroviral Therapy. AB - Nonhuman primate (NHP) models of AIDS represent a potentially powerful component of the effort to understand in vivo sources of AIDS virus that persist in the setting of suppressive combination antiretroviral therapy (cART) and to develop and evaluate novel strategies for more definitive treatment of HIV infection (i.e., viral eradication "cure", or sustained off-cART remission). Multiple different NHP models are available, each characterized by a particular NHP species, infecting virus, and cART regimen, and each with a distinct capacity to recapitulate different aspects of HIV infection. Given these different biological characteristics, and their associated strengths and limitations, different models may be preferred to address different questions pertaining to virus persistence and cure research, or to evaluate different candidate intervention approaches. Recent developments in improved cART regimens for use in NHPs, new viruses, a wider array of sensitive virologic assay approaches, and a better understanding of pathogenesis should allow even greater contributions from NHP models to this important area of HIV research in the future. PMID- 29026924 TI - Gene Regulation, Two Component Regulatory Systems, and Adaptive Responses in Treponema Denticola. AB - The oral microbiome consists of a remarkably diverse group of 500-700 bacterial species. The microbial etiology of periodontal disease is similarly complex. Of the ~400 bacterial species identified in subgingival plaque, at least 50 belong to the genus Treponema. As periodontal disease develops and progresses, T. denticola transitions from a low to high abundance species in the subgingival crevice. Changes in the overall composition of the bacterial population trigger significant changes in the local physical, immunological and physiochemical conditions. For T. denticola to thrive in periodontal pockets, it must be nimble and adapt to rapidly changing environmental conditions. The purpose of this chapter is to review the current understanding of the molecular basis of these essential adaptive responses, with a focus on the role of two component regulatory systems with global regulatory potential. PMID- 29026925 TI - ER Protein Quality Control and the Unfolded Protein Response in the Heart. AB - Cardiac myocytes are the cells responsible for the robust ability of the heart to pump blood throughout the circulatory system. Cardiac myocytes grow in response to a variety of physiological and pathological conditions; this growth challenges endoplasmic reticulum-protein quality control (ER-PQC), a major feature of which includes the unfolded protein response (UPR). ER-PQC and the UPR in cardiac myocytes growing under physiological conditions, including normal development, exercise, and pregnancy, are sufficient to support hypertrophic growth of each cardiac myocyte. However, the ER-PQC and UPR are insufficient to respond to the challenge of cardiac myocyte growth under pathological conditions, including myocardial infarction and heart failure. In part, this insufficiency is due to a continual decline in the expression levels of important adaptive UPR components as a function of age and during myocardial pathology. This chapter will discuss the physiological and pathological conditions unique to the heart that involves ER-PQC, and whether the UPR is adaptive or maladaptive under these circumstances. PMID- 29026921 TI - Role of gut microbiota in aging-related health decline: insights from invertebrate models. AB - Studies in mammals, including humans, have reported age-related changes in microbiota dynamics. A major challenge, however, is to dissect the cause and effect relationships involved. Invertebrate model organisms such as the fruit fly Drosophila and the nematode Caenorhabditis elegans have been invaluable in studies of the biological mechanisms of aging. Indeed, studies in flies and worms have resulted in the identification of a number of interventions that can slow aging and prolong life span. In this review, we discuss recent work using invertebrate models to provide insight into the interplay between microbiota dynamics, intestinal homeostasis during aging and life span determination. An emerging theme from these studies is that the microbiota contributes to cellular and physiological changes in the aging intestine and, in some cases, age-related shifts in microbiota dynamics can drive health decline in aged animals. PMID- 29026926 TI - Erratum to: Nitrate and Nitrogen Oxides: Sources, Health Effects and Their Remediation. PMID- 29026927 TI - Diagnostics and early treatment in prehospital and emergency-room phase in suspicious pelvic ring fractures. AB - BACKGROUND: Testing for mechanical stability in pelvic ring fractures is advocated for the initial assessment and management of pelvic ring fractures. A survey among trauma surgeons showed that 91% agree with this recommendation. The aim of the present study was to describe the actual workup of patients with a high risk for unstable pelvic fractures in daily routine. METHODS: We performed a prospective multicenter observational study on patients admitted to the emergency room with suspected pelvic ring fractures. Data were collected anonymously via a standardized case report. RESULTS: A total of 254 patients with suspected pelvic injuries from 12 different trauma centers were included in this study. In 95 out of 254 cases a per definition unstable pelvic fracture could be confirmed; 46 type B and 49 type C fractures was confirmed. Mechanical stability examination was carried out in 61% and revealed a sensitivity of 31.6% and a specificity of 92.2%. 11.5% (18 patients) actually showed a mechanical instability (6 B# 12 C#). Regardless, 166 patients (65.4%) received noninvasive external stabilization ahead of diagnostic imaging, as a result of clinical judgment. 72% (24*) showed signs of significant bleeding in the subsequent CT scans. 33 pelvic ring fractures (type B or C) had no prehospital stabilization. CONCLUSION: Testing of mechanical stability of the pelvic ring was carried out less often and with lower consequences for the actual management than expected. It seems worthwhile to rather put on a pelvic binder at earliest occasion based on trauma mechanism or clinical findings to reduce the risk of serious pelvic bleeding. PMID- 29026928 TI - [Current treatment concepts in intracerebral hemorrhage]. AB - BACKGROUND AND OBJECTIVE: In recent years, various important studies investigating the management of intracerebral hemorrhage (ICH) have been published. However, these have not entered guideline recommendations yet. Therefore, essential results are summarized here and the findings are integrated into current treatment concepts. MATERIALS AND METHODS: Based on a dedicated literature review and the authors' experience, up-to-date and high-quality investigations were identified. RESULTS AND DISCUSSION: Randomized data and meta analyses provide evidence that aggressive blood-pressure reduction (targeting a systolic blood pressure <140 mm Hg) appears safe and reduces hematoma enlargement. ICH associated with intake of vitamin K antagonists should be reversed immediately using prothrombin complex concentrates (PCC) and vitamin K, targeting at least international normalized ratio levels below 1.3. For dabigatran-related ICH, an antidote (idarucizumab) is available for reversal, but in ICH under the use of factor Xa inhibitors evidence is poor. However, reversal should be carried out using high-dosed PCC (50 IU/kg PCC). Routine hematoma evacuation surgery cannot be advocated, yet new minimally invasive strategies provide promising results. In patients with acute occlusive hydrocephalus, an external ventricular drain should be placed and utilizing intraventricular lysis appears safe, reduces mortality, and is associated with improved functional outcome. Adding lumbar drainage to this treatment strategy may reduce permanent shunt dependency. The sum of treatment measures and specialized care at high volume centers improves outcome in patients with ICH. PMID- 29026929 TI - The outcome of proximal fifth metatarsal fractures: redefining treatment strategies. AB - BACKGROUND: To optimize the treatment strategy and reduce treatment costs of proximal fifth metatarsal fractures, clinical and patient-reported outcome, and its determinants were addressed. METHODS: A retrospective adult cohort study including 152 proximal fifth metatarsal fractures: 121 nonoperatively and 31 operatively treated. In the operative group, 21 were zone 1 and 10 zone 2 fractures. Median follow-up was 37.5 (IQR 20.8-52.3) months with a minimal follow up of 6 months. Twenty-three demographic, fracture, and treatment characteristics were assessed as well as the healthcare costs. Outcome was assessed using the patient files, anterior-posterior and oblique X-rays, foot function index (FFI), visual analog score (VAS), and SF-36 questionnaires. RESULTS: The median FFI, physical SF-36, and VAS scores did not significantly differ between nonoperatively and operatively treated patients. The FFI and physical SF-36 were predominantly affected by a history of mobility impairment and pre-existent cardiovascular diseases, whereas mental SF-36 correlated significantly with higher ASA-score. Overall complication rate was 5.9% (4.1 vs. 12.9%; p = 0.065, nonoperative vs. operative, respectively). Nonunion was recorded in only one (nonoperatively) treated patient. The total healthcare costs for operative treatment were 4.2 times higher compared to nonoperative treatment (?1960 vs. ?463 per patient, respectively). CONCLUSION: Overall, the clinical and patient reported outcome was good. The foot function and quality of life were mainly affected by comorbidity, rather than fracture and treatment-related variables. Although nonoperatively treated patients indicated decreased mental quality of life, our study indicates that proximal fifth metatarsal fractures can safely be treated nonoperatively without the risk of nonunion, with fewer complications and lower healthcare costs. LEVEL OF EVIDENCE: 3. PMID- 29026930 TI - [Burnout-a call for action]. AB - BACKGROUND: Burnout is an emerging topic and has recently been the subject of a position paper of the US American Society of Critical Care Medicine. OBJECTIVES: To give an overview over prevalence, causes, and relevance of burnout in intensive care unit (ICU) clinicians and point to potential prevention strategies MATERIALS AND METHODS: Narrative review. RESULTS AND CONCLUSION: Burnout is a job related state which results from long-lasting, permanent work overload when short spells of recreation, for instance during the weekend, are not effective to reduce exhaustion, vegetative symptoms, loss of efficiency, and depersonalization. Burnout may be due to (1) work-related factors, such as unmanageable workload and lack of appreciation by superiors and (2) personal factors, such as overly high demand and commitment. Surveys from France and Switzerland suggest that approximately one third to one half of ICU clinicians are affected. Large studies among hospital nurses show an increase in burnout. Burnout impairs patient safety and satisfaction, increases clinicians' intent to quit, and staff turnover. CONCLUSIONS: Burnout is associated with a poor work environment. Burnout prevention or reduction is an important task which demands a multidimensional approach. The goal should be to improve the work environment, achieve good team collaboration, psychological safety, and inclusive leadership. PMID- 29026931 TI - Imaging Patterns of Rhino-Orbital-Cerebral Mucormycosis in Immunocompromised Patients : When to Suspect Complicated Mucormycosis. AB - PURPOSE: The aim of this study was to describe radiological imaging findings of a complicated sinusitis, which should raise the suspicion of rhino-orbital-cerebral mucormycosis as being the underlying cause. METHODS: In this retrospective analysis, we describe the cases and imaging findings of 8 patients with proven mucormycosis. These patients presented mostly with new facial or orbital swelling and were referred for imaging to our institution. Magnetic resonance imaging and computed tomography images were classified as abnormal or normal with respect to orbital, paranasal and cerebral signal results. Special emphasis was placed on the distribution of the signal abnormalities regarding involvement of the skull base and the cavernous sinus. RESULTS: Out of a pool of 43 patients with colonization or proven Mucorales infection at different sites of the body, we identified 8 patients with infiltration of the midface and skull base. Unexpectedly seven out of the eight patients with abnormal findings of the paranasal sinuses and the adjacent tissues showed no bony sinus wall destruction. Of the eight patients seven showed inflammatory changes involving the infratemporal fossa and facial/periorbital tissues, three of the eight patients suffered from fungal invasion of the cavernous sinus and the carotid artery and one of the eight patients had a local infection of the hard palate only. CONCLUSION: Imaging findings of inflammatory tissue infiltration adjacent to the paranasal sinuses with possible extension into the pterygopalatine fossa, infratemporal fossa and orbit or the cavernous sinus should raise the suspicion of a mucormycosis, especially in immunocompromised patients. PMID- 29026932 TI - [PROtocol-based MObilizaTION on intensive care units : Design of a cluster randomized pilot study]. AB - BACKGROUND: Despite convincing evidence for early mobilization of patients on intensive care units (ICU), implementation in practice is limited. Protocols for early mobilization, including in- and exclusion criteria, assessments, safety criteria, and step schemes may increase the rate of implementation and mobilization. HYPOTHESIS: Patients (population) on ICUs with a protocol for early mobilization (intervention), compared to patients on ICUs without protocol (control), will be more frequently mobilized (outcome). METHODS: A multicenter, stepped-wedge, cluster-randomized pilot study is presented. Five ICUs will receive an adapted, interprofessional protocol for early mobilization in randomized order. Before and after implementation, mobilization of ICU patients will be evaluated by randomized monthly one-day point prevalence surveys. Primary outcome is the percentage of patients mobilized out of bed, operationalized as a score of >=3 on the ICU Mobility Scale. Secondary outcome parameters will be presence and/or length of mechanical ventilation, delirium, stay on ICU and in hospital, barriers to early mobilization, adverse events, and process parameters as identified barriers, used strategies, and adaptions to local conditions. EXPECTED RESULTS: Exploratory evaluation of study feasibility and estimation of effect sizes as the basis for a future explanatory study. PMID- 29026934 TI - Early oseltamivir therapy improves the outcome in critically ill patients with influenza: a propensity analysis. PMID- 29026933 TI - Measurement properties of the most commonly used Foot- and Ankle-Specific Questionnaires: the FFI, FAOS and FAAM. A systematic review. AB - PURPOSE: In the foot and ankle literature, a wide range of patient-reported outcome measures (PROMs) is used, however, consensus as to which PROMs are preferred is lacking. Selection of a PROM is among other reasons, often based on measurement properties without considering the methodological quality of the studies that evaluate these measurement properties. The aim of current study was first to identify the most frequently used foot and ankle-specific PROMs in recent orthopaedic foot and ankle literature, and second to conduct a systematic review to synthesize and critically appraise the measurement properties of these PROMS. METHODS: Six PubMed indexed journals focussing on foot and ankle research were screened to identify most commonly used foot and ankle-specific PROMs over a 2 year period (2015-2016). Subsequently, a systematic literature search was performed in PubMed, EMBASE, SPORTDiscus and Scopus to identify relevant studies on their measurement properties. Methodological quality assessment was performed using the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) checklist, criteria for good measurement properties were applied, and a level of evidence was determined for the measurement properties of each domain of the questionnaires. RESULTS: The three most frequently reported PROMs were the Foot Function Index (FFI), the Foot and Ankle Outcome Score (FAOS) and the Foot and Ankle Activity Measure (FAAM). Among 2046 unique citations, 50 studies were included evaluating these PROMs. Evidence to support the measurement properties of the FFI was mainly lacking due to poor methodological quality. More evidence was available for the measurement properties of the FAOS and the FAAM, but overall evidence supporting all measurement properties is not yet sufficient. CONCLUSION: The best available evidence retrieved in this review showed that the FAOS and the FAAM are promising outcome measures for evaluation of patients with foot and ankle conditions, but their shortcomings should be taken into account when interpreting results in clinical setting or trials. LEVEL OF EVIDENCE: I. PMID- 29026936 TI - A Comparative Study of Full-Thickness Blepharotomy Versus Transconjunctival Eyelid Lengthening in the Correction of Upper Eyelid Retraction in Graves' Orbitopathy. AB - BACKGROUND: The study was designed to compare the outcome of full-thickness blepharotomy and transconjunctival eyelid lengthening in the correction of upper eyelid retraction (UER) in patients with Graves' orbitopathy (GO). METHODS: This is a prospective randomized interventional study. Following ophthalmic examination, determination of the ocular surface disease index (OSDI) and photography, 27 patients with UER were randomly assigned to either graded full thickness blepharotomy (G1) or transconjunctival Muller muscle recession and graded disinsertion of the levator palpebrae superioris muscle (G2). Six months later, patients were reevaluated. Digital images were analyzed with the assistance of customized software. A standardized "normal range" of upper eyelid height and contour was calculated based on healthy controls. The outcome of the two groups was compared. RESULTS: Forty-seven eyelids of 27 patients (19 female) with UER were included. Twenty-seven eyelids (15 patients) were allocated to G1 and 20 eyelids (12 patients) to G2. On average, surgery lasted 37.46 +/- 5.73 min in G1 and 32.70 +/- 8.39 min in G2. Based on the margin reflex distance, 93% of the eyelids in G1 and 85% in G2 were within the normal range after surgery. The corresponding figures for lid contour were 63 and 55%. Both groups displayed significant improvement in OSDI scores. No significant difference was observed in the overall comparison. CONCLUSIONS: The two surgical techniques were equally effective in the treatment of UER from GO. Postoperative contour outcomes were considerably worse in patients with severe UER than in patients with mild or moderate UER, regardless of group. LEVEL OF EVIDENCE II: 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 Table of Contents or the online Instructions to Authors www.springer.com/00266 . Study registered on ClinicalTrial.gov number: NCT01999790. PMID- 29026935 TI - Temporal-Spatial Evolution of Groundwater Nitrogen Pollution Over Seven Years in a Highly Urbanized City in the Southern China. AB - Understanding the temporospatial variation in nitrogen pollution in groundwater and the associated controlling factors is important to establish management practices that ensure sustainable use of groundwater. In this study, we analyzed inorganic nitrogen content (nitrate, nitrite, and ammonium) in 1164 groundwater samples from shallow, middle-deep, and deep aquifers in Zhanjiang, a highly urbanized city in the southern China. Our data span a range of 7 years from 2005 to 2011. Results show that shallow aquifers had been heavily contaminated by nitrate and ammonium. Temporal patterns show that N contamination levels remained high and relatively stable over time in urban areas. This stability and high concentration is hypothesized as a result of uncontrolled, illicit sewer discharges from nearby business facilities. Groundwater in urban land and farmland displays systematic differences in geochemical characteristics. Collectively, our findings demonstrate the importance of continuously monitoring groundwater quality and strictly regulating sewage discharges in Zhanjiang. PMID- 29026937 TI - [Minimally invasive and robotic-assisted surgical management of upper gastrointestinal cancer]. AB - Total minimally invasive upper gastrointestinal resections are currently mainly performed in centers. The advantages include reduction of operative trauma, magnified enlargement of the operation field and the resulting improvement in operative precision. Robotic-assisted minimally invasive esophagectomy (RAMIE) and laparoscopic/thoracoscopic minimally invasive esophagectomy (MIE) are currently the most commonly performed strategies for esophageal cancer. Laparoscopic (MIG) and robotic-assisted gastrectomy (RAG) are the equivalent procedures for gastric cancer. Due to the relatively low number of reported cases, no definitive statement regarding superiority of these procedures compared to standard open or hybrid procedures can be made; however, there is mounting evidence from high-volume centers in which these procedures are routinely performed that there might be an advantage regarding perioperative morbidity. All of the four procedures described are provided at our high-volume centers in a standardized manner and we are convinced of the benefits of these minimally invasive techniques with respect to morbidity compared to open and hybrid techniques. The additional costs of this technology have to be off-set against a possible reduction of morbidity, reduced cost for personnel and new operative options, such as real-time fluoroscopy. PMID- 29026938 TI - Global dietary calcium intake among adults: a systematic review. AB - Low calcium intake may adversely affect bone health in adults. Recognizing the presence of low calcium intake is necessary to develop national strategies to optimize intake. To highlight regions where calcium intake should be improved, we systematically searched for the most representative national dietary calcium intake data in adults from the general population in all countries. We searched 13 electronic databases and requested data from domain experts. Studies were double-screened for eligibility. Data were extracted into a standard form. We developed an interactive global map, categorizing countries based on average calcium intake and summarized differences in intake based on sex, age, and socioeconomic status. Searches yielded 9780 abstracts. Across the 74 countries with data, average national dietary calcium intake ranges from 175 to 1233 mg/day. Many countries in Asia have average dietary calcium intake less than 500 mg/day. Countries in Africa and South America mostly have low calcium intake between about 400 and 700 mg/day. Only Northern European countries have national calcium intake greater than 1000 mg/day. Survey data for three quarters of available countries were not nationally representative. Average calcium intake is generally lower in women than men, but there are no clear patterns across countries regarding relative calcium intake by age, sex, or socioeconomic status. The global calcium map reveals that many countries have low average calcium intake. But recent, nationally representative data are mostly lacking. This review draws attention to regions where measures to increase calcium intake are likely to have skeletal benefits. PMID- 29026939 TI - [Minimally invasive osteosynthesis after ankle fractures in geriatric patients : Surgical technique with the aid of headless full thread screws]. PMID- 29026940 TI - Advanced bioanalytics for precision medicine. AB - Precision medicine is a new paradigm that combines diagnostic, imaging, and analytical tools to produce accurate diagnoses and therapeutic interventions tailored to the individual patient. This approach stands in contrast to the traditional "one size fits all" concept, according to which researchers develop disease treatments and preventions for an "average" patient without considering individual differences. The "one size fits all" concept has led to many ineffective or inappropriate treatments, especially for pathologies such as Alzheimer's disease and cancer. Now, precision medicine is receiving massive funding in many countries, thanks to its social and economic potential in terms of improved disease prevention, diagnosis, and therapy. Bioanalytical chemistry is critical to precision medicine. This is because identifying an appropriate tailored therapy requires researchers to collect and analyze information on each patient's specific molecular biomarkers (e.g., proteins, nucleic acids, and metabolites). In other words, precision diagnostics is not possible without precise bioanalytical chemistry. This Trend article highlights some of the most recent advances, including massive analysis of multilayer omics, and new imaging technique applications suitable for implementing precision medicine. Graphical abstract Precision medicine combines bioanalytical chemistry, molecular diagnostics, and imaging tools for performing accurate diagnoses and selecting optimal therapies for each patient. PMID- 29026941 TI - Neutral alignment leads to higher knee society scores after total knee arthroplasty in preoperatively non-varus patients: a prospective clinical study using 3D-CT. AB - PURPOSE: The optimal coronal alignment is still under debate. However, in most of the studies, alignment was only assessed using radiographs, which are not accurate enough for assessment of tibial and femoral TKA position. The primary purpose of this study was to assess the relationship between coronal TKA alignment using 3D-reconstructed CTs and clinical outcome in patients with preoperative varus in comparison with patients with natural or valgus deformity. It was the hypothesis that neutral limb alignment shows a better outcome after TKA. METHODS: Prospectively collected data of 38 patients were included. The clinical and radiological follow-up was 24 months. The patients were grouped into two groups with regard to their preoperative limb alignment. Group A (varus) consisted of 21 patients with preoperative varus of 3 degrees or more, while group B (non-varus) consisted of 17 patients with neutral (- 3 < 0 > + 3) or valgus alignment (> + 3). For assessment of TKA component position and orientation, 3D-reconstructed CT was used. The measurements of the deviation from the whole limb mechanical axis (HKA angle) and the joint line alignment in the femoral (mLDFA) and the tibial side (MPTA) were assessed in the preoperative leg as well as during follow-up after TKA. For clinical outcome assessment, the Knee Society Score (KSS) was used at 1 and 2 years postoperatively. Correlation between KSS score and each variable was done using a linear and quadratic regression model (p < 0.05). RESULTS: The mean postoperative HKA angle was - 1.3 (varus) in the varus group and + 1.4 (valgus) in the non-varus group. Overall, significant correlations between the preoperative and postoperative alignments were found. In the preoperatively non-varus group, a highly significant correlation was found between neutral limb alignment (HKA = 0 degrees +/- 3 degrees ) and higher KSS (r 2 = 0.74, p = 0.00). In the varus group, no correlation was found between the postoperative whole limb alignment and the components' position in the coronal plane to KSS score. CONCLUSION: A significant correlation was found between neutral limb alignment and higher KSS only in patients with preoperative non-varus alignment. The concept of constitutional varus alignment is still under debate. Moreover, it appears that one should aim for a more individualized, alignment target based on the individual knee morphotype. LEVEL OF EVIDENCE: Diagnostic study, Level II. PMID- 29026942 TI - The effects of subclinical neck pain on sensorimotor integration following a complex motor pursuit task. AB - Recurrent subclinical neck pain (SCNP) may be associated with neural plastic changes in sensory processing and sensorimotor integration (SMI); however, its impact on motor learning has not been investigated. The aim of this study was to investigate whether SCNP alters neural markers of SMI during a complex motor acquisition task as compared to a healthy control group. Peripheral N9, spinal N13, brainstem N18, and cortical N20, P25, N24 and N30 early somatosensory evoked potentials (SEPs) were recorded following median nerve stimulation for 24 participants (12 control and 12 SCNP) before and after a 10-min tracing motor task intervention. Retention was assessed 24-48 h later. Significant amplitude differences were observed for both N18 and N24 SEP waveforms between groups, indicating there may be a difference in SMI due to altered afferent input as a result of SCNP. Accuracy increased significantly for both groups post-motor training; however, at retention only the control group showed an additional increase in accuracy. Both N18 and N24 SEP peaks are linked with cerebellar pathways, suggesting that SCNP impacts these connections. Significant correlations between these peaks and performance data were also seen. The differential changes in neurophysiological markers of SMI seen in SCNP suggest that SEPs have the potential to be used as an early screening tool for those at risk of having maladaptive neural plastic changes in response to motor training as a result of SCNP. PMID- 29026943 TI - Quorum sensing inhibitors: can endophytes be prospective sources? AB - Endophytes are microbes which reside inside the plant tissues asymptomatically or causing pathogenicity to the host plant for a brief period. Owing to their presence in a specialized niche, endophytes are capable of synthesizing diverse types of bioactive molecules. Continuous development of resistance mechanism by pathogens to the currently available health treatments and pharmaceuticals has led researchers to explore new therapeutic agents. Quorum sensing has a role in the development of microbial pathogenic traits including biofilm formation. Utilization of quorum sensing (QS) inhibitors in antivirulence approach against pathogenesis is one of the innovative strategies. Endophytic microbes provide a plethora of such required bioactive molecules. This review summarizes the bioprospecting of endophytic microbes for production of novel QS inhibitors. At the outset, an overview is presented about the QS and QS inhibition followed by a summary on the endophytes as a treasure trove of bioactive metabolites, particularly the QS inhibitors. Next, we have outlined screening, purification, production, and application of QS inhibitors starting from the isolation of endophytic microbes. There is huge prospect for endophytes in the domain of human healthcare and food industry, provided that we develop a comprehensive understanding of the biology of endophyte and its ecosystem. PMID- 29026944 TI - Improving elution strategies for Chelex(r)-DGT passive samplers. AB - Elution of Chelex(r) binding layers, commonly used for the diffusive gradients in thin films technique (DGT), is recognized as the most important contributor to the uncertainty of DGT measurements. Limiting uncertainty requires the use of optimized procedures and suitable elution recoveries (f e ). This work therefore investigated elution robustness to propose improved strategies. A wide range of conditions were investigated for the main elution parameters (Chelex(r) particle size, elution time, Chelex(r) loading, and eluent concentration and volume) on Al(III), Cd(II), Co(II), Cr(III), Cu(II), Ni(II), Pb(II), and Zn(II). Results showed that the choice of elution conditions should be a compromise driven by study constrains in terms of accuracy, repeatability, sensitivity, and targeted elements. Using experimentally determined recoveries should improve accuracy by approximately 5 to 10% compared to the use of recoveries from the literature. Fast elution of 1 h can be achieved without significant loss of recovery and repeatability except for Cr(III) (8 h minimum). Elution recovery depended on Chelex(r) loading for Zn and Cr and introducing recoveries adapted to the loading could improve accuracy up to, respectively, 11 and 27%. When standard recoveries are used, a 0.85 f e value would be more appropriate than the common value of 0.8 to minimize inaccuracy (except for Cr). Some flexibility can be applied to elution conditions without a significant change in recovery for most elements: HNO3 concentration of 1-15 M, volume of 1-2 mL, duration of 8-48 h. Cr(III) was unique in its sensitivity to elution condition variations; thus, choice is more restricted for this element. Graphical abstract Decisional tree for choosing elution procedure and recoveries for Chelex(r)-DGT. PMID- 29026945 TI - TSPO PET using 18F-GE-180: a new perspective in neurooncology? PMID- 29026946 TI - PSMA targeted radioligandtherapy in metastatic castration resistant prostate cancer after chemotherapy, abiraterone and/or enzalutamide. A retrospective analysis of overall survival. AB - AIM: Our aim was to evaluate overall survival and parameters prognosticating longer survival in a large and homogeneous group of patients treated with 177Lu PSMA-617 radioligand therapy with heavily pretreated advanced metastatic castration resistant prostate cancer. METHODS: A total of 104 patients were treated with 351 cycles of 177Lu-PSMA-617. Prostate specific antigen (PSA) changes after the first cycle of therapy were documented prior to a second cycle. Patients were followed-up for overall survival (OS). Any PSA decline, PSA decline >=50%, initial PSA, alkaline phosphatase (ALP), lactate dehydrogenase (LDH), visceral metastases and cumulative injected activity were analyzed and evaluated according to OS. Multivariable analysis with parameters with a p-value <=0.05 in univariate analysis was performed, additionally adjusting for age and presence of visceral metastases. RESULTS: A total of 51 patients (49%) died during the observation period. The majority of patients (97%) presented with bone metastases, 77% with lymph node metastases and 32% with visceral metastases. All patients were treated with at least one line of chemotherapy. Either abiraterone or enzalutamide had been given in 100% of the patients. Any PSA decline occurred in 70 (67%) and a PSA decline >=50% in 34 (33%) of patients after the first cycle. The median OS was 56.0 weeks (95%CI: 50.5-61.5). Initial PSA decline >=50%, initial LDH, visceral metastases, second line chemotherapy or prior radium 223 did not have an effect on survival, whereas any initial PSA decline, initial ALP <220 U/L and cumulative injected activity >=18.8 GBq were associated with a longer survival. A step-by-step analysis revealed a PSA decline >=20.87% as the most noticeable cut-off prognosticating longer survival, which remained an independent prognosticator of improved OS in the multivariate analysis. CONCLUSION: 177Lu-PSMA-617 RLT is a new effective therapeutic and seems to prolong survival in patients with advanced mCRPC pretreated with chemotherapy, abiraterone and/or enzalutamide. PMID- 29026947 TI - PET-guided clinical trials in Hodgkin lymphoma: to agree or not to agree, that is the reviewer's question. PMID- 29026948 TI - Comparison of Dexamethasone-Dimenhydrinate and Dexamethasone-Ondansetron in Prevention of Nausea and Vomiting in Postoperative Patients. PMID- 29026949 TI - A filamentous bacteriophage targeted to carcinoembryonic antigen induces tumor regression in mouse models of colorectal cancer. AB - Colorectal cancer is a deadly disease, which is frequently diagnosed at advanced stages, where conventional treatments are no longer effective. Cancer immunotherapy has emerged as a new form to treat different malignancies by turning-on the immune system against tumors. However, tumors are able to evade antitumor immune responses by promoting an immunosuppressive microenvironment. Single-stranded DNA containing M13 bacteriophages are highly immunogenic and can be specifically targeted to the surface of tumor cells to trigger inflammation and infiltration of activated innate immune cells, overcoming tumor-associated immunosuppression and promoting antitumor immunity. Carcinoembryonic antigen (CEA) is highly expressed in colorectal cancers and has been shown to promote several malignant features of colorectal cancer cells. In this work, we targeted M13 bacteriophage to CEA, a tumor-associated antigen over-expressed in a high proportion of colorectal cancers but largely absent in normal cells. The CEA targeted M13 bacteriophage was shown to specifically bind to purified CEA and CEA expressing tumor cells in vitro. Both intratumoral and systemic administration of CEA-specific bacteriophages significantly reduced tumor growth of mouse models of colorectal cancer, as compared to PBS and control bacteriophage administration. CEA-specific bacteriophages promoted tumor infiltration of neutrophils and macrophages, as well as maturation dendritic cells in tumor-draining lymph nodes, suggesting that antitumor T-cell responses were elicited. Finally, we demonstrated that tumor protection provided by CEA-specific bacteriophage particles is mediated by CD8+ T cells, as depletion of circulating CD8+ T cells completely abrogated antitumor protection. In summary, we demonstrated that CEA specific M13 bacteriophages represent a potential immunotherapy against colorectal cancer. PMID- 29026952 TI - Spatially and angularly resolved spectroscopy for in-situ estimation of concentration and particle size in colloidal suspensions. AB - Successful implementation of process analytical technology (PAT) hinges on the ability to make continuous or frequent measurements in-line or at-line of critical product attributes such as composition and particle size, the latter being an important parameter for particulate processes such as suspensions and emulsions. A novel probe-based spatially and angularly-resolved diffuse reflectance measurement (SAR-DRM) system is proposed. This instrument, along with appropriate calibration models, is designed for online monitoring of concentration of chemical species and particle size of the particulate species in process systems involving colloidal suspensions. This measurement system was investigated using polystyrene suspensions of various particle radius and concentration to evaluate its performance in terms of the information obtained from the novel configuration which allows the measurement of a combination of incident light at different angles and collection fibres at different distances from the source fibres. Different strategies of processing and combining the SAR DRM measurements were considered in terms of the impact on partial least squares (PLS) model performance. The results were compared with those obtained using a bench-top instrument which was used as the reference (off-line) instrument for comparison purposes. The SAR-DRM system showed similar performance to the bench top reference instrument for estimation of particle radius, and outperforms the reference instrument in estimating particle concentration. The investigation shows that the improvement in PLS regression model performance using the SAR-DRM system is related to the extra information captured by the SAR-DRM configuration. The differences in SAR-DRM spectra collected by the different collection fibres from different angular source fibres are the dominant reason for the significant improvement in the model performance. The promising results from this study suggest the potential of the SAR-DRM system as an online monitoring tool for processes involving suspensions. Graphical abstract A probe designed to acquire diffuse reflectance measurements at different source-detector distances for three incidence angles 0 degrees , 30 degrees and 45 degrees was used to estimate particle size and concentration of polystyrene beads in aqueous suspension using partial least squares calibration models. PMID- 29026950 TI - The prognostic value of 18F-FDG PET/CT prior to liver transplantation for nonresectable colorectal liver metastases. AB - PURPOSE: The main objective of this study was to evaluate the prognostic value of volumetric and metabolic information derivied from F-18 fluorodeoxyglucose positron emission tomography (18F-FDG PET) in combination with computed tomography (CT) prior to liver transplantation (LT) in patients with nonresectable colorectal liver metastases (CLM). Due to scarcity of liver grafts, prognostic information enabling selection of candidates who will gain the highest survival after LT is of vital importance. 18F-FDG PET/CT was a part of the preoperative study protocol. Patients without evidence of extrahepatic malignant disease on 18F-FDG PET/CT who also fulfilled all the other inclusion criteria underwent LT. METHODS: The preoperative 18F-FDG PET/CT examinations of all patients included in the SECA (secondary cancer) study were retrospectively assessed. Maximum, mean and peak standardized uptake values (SUVmax, SUVmean and SUVpeak), tumor to background (T/B) ratio, metabolic tumor volume (MTV) and total lesion glycolysis (TLG) were measured and calculated for all liver metastases. Total MTV and TLG were calculated for each patient. Cut-off values were determined for each of these parameters by using receiver operating characteristic (ROC) analysis dividing the patients into two groups. One, three and five-year overall survival (OS) and disease free survival (DFS) for patients over and under the cut-off value were compared by using the Kaplan-Meier method and log rank test. RESULTS: Twenty-three patients underwent LT in the SECA study. Total MTV and TLG under the cut-off values were significantly correlated to improved OS at three and five years (p = 0.027 and 0.026) and DFS (p = 0.01). One, three and five-year OS and DFS were not significantly related to SUVmax, SUVmean, SUVpeak or T/B-ratio. CONCLUSION: Total MTV and TLG from 18F FDG PET/CT prior to LT for nonresectable CLM were significantly correlated to improved three and five-year OS and DFS and can potentially improve the patient selection for LT. PMID- 29026951 TI - Multimodal correlation of dynamic [18F]-AV-1451 perfusion PET and neuronal hypometabolism in [18F]-FDG PET. AB - PURPOSE: Cerebral glucose metabolism measured with [18F]-FDG PET is a well established marker of neuronal dysfunction in neurodegeneration. The tau-protein tracer [18F]-AV-1451 PET is currently under evaluation and shows promising results. Here, we assess the feasibility of early perfusion imaging with AV-1451 as a substite for FDG PET in assessing neuronal injury. METHODS: Twenty patients with suspected neurodegeneration underwent FDG and early phase AV-1451 PET imaging. Ten one-minute timeframes were acquired after application of 200 MBq AV 1451. FDG images were acquired on a different date according to clinical protocol. Early AV-1451 timeframes were coregistered to individual FDG-scans and spatially normalized. Voxel-wise intermodal correlations were calculated on within-subject level for every possible time window. The window with highest pooled correlation was considered optimal. Z-transformed deviation maps (ZMs) were created from both FDG and early AV-1451 images, comparing against FDG images of healthy controls. RESULTS: Regional patterns and extent of perfusion deficits were highly comparable to metabolic deficits. Best results were observed in a time window from 60 to 360 s (r = 0.86). Correlation strength ranged from r = 0.96 (subcortical gray matter) to 0.83 (frontal lobe) in regional analysis. ZMs of early AV-1451 and FDG images were highly similar. CONCLUSION: Perfusion imaging with AV-1451 is a valid biomarker for assessment of neuronal dysfunction in neurodegenerative diseases. Radiation exposure and complexity of the diagnostic workup could be reduced significantly by routine acquisition of early AV-1451 images, sparing additional FDG PET. PMID- 29026953 TI - Application of molecularly imprinted polymers for the analysis of polycyclic aromatic hydrocarbons in lipid matrix-based biological samples. AB - High-accuracy analyses of polycyclic aromatic hydrocarbons (PAHs) in lipid matrix based biological samples are highly necessary. We investigated the cleanup performance of the commercially available molecularly imprinted polymers (MIPs) to analyze PAHs in various biological samples (i.e., butter, peanut oil, pork belly, and human umbilical cord), and compared this method with the commonly used gel permeation chromatography (GPC). After primary cleanup with a MIP or GPC column, the extracts were further cleaned with a neutral aluminum oxide column. Then, we measured 16 PAH congeners using gas chromatography-mass spectrometry. The MIP method allowed PAH recovery levels as high as those measured with the GPC method to be obtained. More than 95% of the crude fats of butter, peanut oil, and pork belly were removed, although only ~ 50% were removed for human umbilical cord. The scan-mode ion chromatograms of the final extracts cleaned with the MIP method had responses similar to solvent blank for the four types of samples, which were slightly better than those cleaned with GPC. Moreover, the PAH concentrations in the MIP operation blank were generally lower than those of GPC operation blanks. These results indicated that MIP could be applied to the analysis of PAHs in various lipid matrix-based biological samples. Graphical abstract The schematic diagram of a molecularly imprinted polymer column and the elution curves of polycyclic aromatic hydrocarbons and crude fats of various biological samples. PMID- 29026954 TI - Selective extraction and determination of chlorogenic acids as combined quality markers in herbal medicines using molecularly imprinted polymers based on a mimic template. AB - We describe a solid-phase extraction adsorbent based on molecularly imprinted polymers (MIPs), prepared with use of a mimic template. The MIPs were used for the selective extraction and determination of three chlorogenic acids as combined quality markers for Lonicera japonica and Lianhua qingwen granules. The morphologies and surface groups of the MIPs were assessed by scanning electron microscopy, Brunauer-Emmett-Teller surface area analysis, and Fourier transform infrared spectroscopy. The adsorption isotherms, kinetics, and selectivity of the MIPs were systematically compared with those of non-molecularly imprinted polymers. The MIPs showed high selectivity toward three structurally similar chlorogenic acids (chlorogenic acid, cryptochlorogenic acid, and neochlorogenic acid). A procedure using molecularly imprinted solid-phase extraction coupled with high-performance liquid chromatography was established for the determination of three chlorogenic acids from Lonicera japonica and Lianhua qingwen granules. The recoveries of the chlorogenic acids ranged from 93.1% to 101.4%. The limits of detection and limits of quantification for the three chlorogenic acids were 0.003 mg g-1 and 0.01 mg g-1, respectively. The newly developed method is thus a promising technique for the enrichment and determination of chlorogenic acids from herbal medicines. Graphical Abstract Mimic molecularly imprinted polymers for the selective extraction of chlorogenic acids. PMID- 29026955 TI - Indolent Rib Osteomyelitis Following Breast Implant Reconstruction: An Unusual Case and Review of the Literature. AB - : Rib osteomyelitis is an infrequently occurring but important complication of breast implant surgery. Although prosthetic or surgical site infection (SSI) and rib osteomyelitis as separate entities are well described in the literature, only five cases of rib or sternal osteomyelitis related to implant placement have been reported globally. Historically patients who experience this complication have not demonstrated an identifiable prevalence of the traditional risk factors associated with SSI or rib osteomyelitis. This report describes the sequence of clinical manifestations of an unusual case of breast implants complicated by rib osteomyelitis. A 56-year-old female underwent mastectomy and insertion of tissue expanders for bilateral invasive ductal carcinoma following which the tissue expanders became infected in the early postoperative period and were subsequently removed. The patient underwent successful expander insertion and subsequent implant exchange surgery several years later and enjoyed an uncomplicated recovery from this. Following nipple reconstruction more than 12 months after successful implant placement, she presented with Staphylococcus epidermidis bacteremia and a left-sided clinical peri-implant infection. Upon removal of her implant, an intraoperative discovery of rib necrosis/osteomyelitis was made for which she was treated. To provide context, the literature was reviewed for other reported cases of rib osteomyelitis following breast implant surgery. This patient, in combination with others reported in the literature, emphasises the diagnostic difficulties posed by this condition as a result of its low incidence and variable or absent clinical features. 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- 29026956 TI - Peptide self-assembly assisted signal labeling for an electrochemical assay of protease activity. AB - Peptide self-assembly holds tremendous promise for a range of applications in chemistry and biology. In the work reported here, we explored the potential functions of peptide self-assembly in electrochemical bioanalysis by developing a peptide self-assembly assisted signal labeling strategy for assaying protease activity. The fundamental principle of this assay is that target-protease catalyzed specific proteolytic cleavage blocks self-assembly between the probe peptide and signal peptide, thus preventing the signal labeling of electroactive silver nanoparticles on the electrode surface, which in turn causes the electrochemical signal to decrease. Using trypsin as an example protease target, the linear range of this assay was found to be 1 ng mL-1 to 100 mg mL-1, and its detection limit was 0.032 ng mL-1, which are better than the corresponding parameters for previously reported assays. Further experiments also highlighted the good selectivity of the assay method and demonstrated its usability when applied to serum samples. Therefore, this report not only introduces a valuable tool for assaying protease activity, but it also promotes the utilization of peptide self-assembly in electrochemical bioanalysis, as this approach has great potential for practical use in the future. PMID- 29026957 TI - Autologous Buccal Micro-Mucosa Free Graft combined with Posterior Scrotal Flap Transfer for Vaginoplasty in Male-To-Female Transsexuals: A Pilot Study. AB - BACKGROUND: The inverted peno-scrotal flap method is considered the standard method of vaginoplasty in male-to-female genital reassignment surgery. Though with numerous advantages, the method has its limitations regarding skin texture, lack of inherent lubrication, and that the tissues for creating the labia depend on the amount of tissues remaining after vaginoplasty. Our purpose was to describe the procedure and outcome of vaginoplasty applying a new technique: autologous buccal micro-mucosa free graft combined with posterior scrotal flap transfer, which could solve some of the problems the previous methods had. METHODS: Nine male-to-female transsexual patients received our new method of vaginoplasty from July 2010-October 2015. We described the details of the surgical procedure and evaluated the long-term anatomical and functional outcomes. RESULTS: In a mean clinical follow-up period of 25.3 months and phone interview follow-up of 50.3 months, we observed that the neovaginas in the nine cases were all of sufficient volume, lined with mucosa, with natural mucosal discharge. The oral donor sites resulted in no visible scars or malfunction. Eight patients experienced uneventful postoperative periods, while one patient suffered from scrotal flap prolapse. All the patients were sexually active and reported sexual satisfaction, with no need of lubrication. CONCLUSION: The reported technique achieves the outcomes of creating a neovagina of sufficient volume, without serious stenosis in long-term follow-up. The neovagina is lined with mucosa and has appropriate lubrication as well as good sexual sensation. The reported method is easy and economical to perform and retains enough tissues for vulvoplasty to achieve a superior cosmetic appearance, with rare risk of complications and donor area malfunction. Additionally, this technique is feasible and advantageous to the patients who have insufficient peno-scrotal skin for neovaginal lining as well as those with unfavorable previous vaginoplasty. All of these indicate that this technique is a promising option for vaginoplasty in male-to-female transsexual surgery. 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- 29026958 TI - Histological changes caused by the prolonged placement of ureteral access sheaths: an experimental study in porcine model. AB - The objective is to evaluate the histological damage to the ureteral wall caused by the prolonged placement of an access sheath in porcine model. Six ureters from three female pigs were randomized into three groups. In each group, an UAS with different indwelling time was inserted. 9.5/11.5 Fr Flexor(r) ureteral access sheaths were inserted in both ureters with left indwelling for 30 min and right for 60 min. The ureteral access sheath was advanced up to the proximal ureter. No resistance was observed during the insertion. Ureters were harvested in immediately after the sheath placement process in one pig. The ureters of the remaining two pigs were removed at 1 and 2 weeks after the procedure, respectively. Histological examination took place also in these specimens. Ureters with an indwelling time of 30 min: histological examination of the ureter after immediate dissection revealed signs of acute inflammation at the distal ureter. The ureter dissected at 1 week showed minimal focal transmural inflammation along its length with minimal epithelial hyperplasia. The ureter dissected at 2 weeks, no signs of inflammation. Ureters with an indwelling time of 60 min: histological examination of the immediately dissected ureter revealed signs of acute inflammation at the distal ureter. At 1 week, chronic transmural inflammation was predominantly observed in the distal ureter. At 2 weeks, minimal transmural inflammation was observed. The use of UAS did not cause any severe histological damage on porcine ureters. Acute signs of inflammation gradually recovered within 2 weeks. PMID- 29026959 TI - Effects of Timing of Appendectomy on the Risks of Perforation and Postoperative Complications of Acute Appendicitis. AB - BACKGROUND: It is generally believed that appendectomy should be performed immediately to prevent perforation and complications. Therefore, our objectives were to investigate the effect of timing of appendectomy on the incidence of perforation and complications. METHODS: We retrospectively reviewed the medical records of patients who underwent laparoscopic appendectomy between January 2014 and June 2015. The time from symptom onset to appendectomy was categorized into three periods: time from symptom onset to hospital admission (symptomatic time), time from admission to appendectomy (hospitalization time), and time from symptom onset to appendectomy [symptomatic period + hospitalization period (overall time)]. Multivariable analyses were performed to identify independent factors associated with perforation and complications. RESULTS: A total of 1753 patients were included in the present study. Perforation occurred in 28.2% of patients, and postoperative complications occurred in 10.0% of patients. Multivariable analysis showed that BT > 38 degrees C (P = 0.006), WBC count >13,000 cells/ul (P = 0.02), neutrophil ratio >80% (P < 0.001), and symptomatic time >24 h (P < 0.001) were independent factors of appendiceal perforation, while the neutrophil ratio >80% (P < 0.001) and symptomatic time >48 h (P = 0.003) were independently associated with complications. CONCLUSIONS: The present study showed that the symptomatic time and overall time were significantly associated with perforation and complications, whereas hospitalization time was not associated with either perforation or complications. PMID- 29026960 TI - Management of Tuberous Breast Deformities: Review of Long-Term Outcomes and Patient Satisfaction. PMID- 29026961 TI - Outcome of In Situ Septoplasty and Extracorporeal Subtotal Septal Reconstruction in Crooked Noses: A Randomized Self-Controlled Study. AB - IMPORTANCE: Severe dorsal deviations in crooked noses are treated by either in situ septoplasty with asymmetric spreader grafts (ISS) or extracorporeal subtotal septal reconstruction (ECS). To our knowledge, except one retrospective study, there is no other that compares the objective and subjective results of these two treatment modalities. OBJECTIVE: The aim of this study was to compare the aesthetic and functional outcomes of ECS and ISS in crooked noses. DESIGN, SETTING AND PARTICIPANTS: This study was carried out on 40 patients (ISS in 20 patients and ECS in 20 patients) who underwent external rhinoplasty surgery due to crooked noses between May 2014 and January 2016. While performing rhinoplasty on the patients, the decision of whether to use the ECS or ISS technique was randomized in a sequential fashion. MAIN OUTCOMES AND MEASURES: Surgical outcomes were assessed and compared using the anthropometric measurement of photographs with Rhinobase software. Subjective assessments of nasal obstruction and aesthetic satisfaction were evaluated with a visual analog scale. RESULTS: There was a significant difference between rhinion deviation angle, supratip deviation angle (SDA) and tip deviation angle pre- and postoperatively in the ECS group, whereas in the ISS group, except SDA, all other postoperative angles were significantly improved from preoperative values (p = 0.218). The nasal tip projection in the ECS and ISS groups was 29.48, 31.5 preoperatively and 29.78, 31.26 postoperatively. The mean postoperative nasal tip projection value (p > 0.005) did not change significantly compared to the preoperative value in both groups. The mean postoperative value of nasolabial (p = 0.226) angle did not change significantly compared to the mean preoperative one in the ECS group. However, in the ISS group, the mean postoperative value of nasolabial (p = 0.001) angle significantly improved compared to the mean preoperative value. There was significant improvement in both groups, while improvements in both functional and aesthetic outcomes were much higher in the extracorporeal group. None of the patients had postoperative nasal obstruction that required revision surgery. One patient underwent revision rhinoplasty due to an irregularity on the nasal dorsum in the ECS group. CONCLUSIONS AND RELEVANCE: This is the first study that compares subjective and objective aesthetic and functional outcomes of crooked nose surgery according to two common septoplasty techniques in a randomized self controlled fashion. This study was effective in both objectively and subjectively comparing the functional and aesthetic aspect of the patients submitted to two common different techniques of treatment of nasal deviations in crooked nose patients. 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- 29026962 TI - Abdominal Contouring Outcomes in Class III Obesity: Analysis of the ACS-NSQIP Database. AB - BACKGROUND: Obesity may increase the risk of complications following abdominal contouring. The aim of this study is to evaluate panniculectomy outcomes in patients with class III obesity (BMI > 40 kg/m2). METHODS: The American College of Surgeon's National Surgical Quality Improvement Program ACS-NSQIP (2010-2014) was used to identify patients who underwent panniculectomy. Class III obesity patients were identified. Demographics, comorbidities and postoperative outcomes were evaluated. Risk-adjusted multivariate logistic regression analyses were performed to assess impact of class III obesity on panniculectomy outcomes. RESULTS: A total of 4497 panniculectomies were identified. Of these, 545 (12.1%) were performed in patients with class III obesity. This group was older (mean age 50.3 vs. 45.9, p < 0.01) with a higher proportion of men (23.4 vs. 12.4%, p < 0.01). Class III obesity group also had higher rates of comorbidities (p < 0.01). Postoperatively, class III obesity patients experienced much higher rates of wound complications (17.8 vs. 6.8%), sepsis (3.3 vs. 0.8%), venous thromboembolism (1.5 vs. 0.7%) and medical complications (6.4 vs. 1.8%), p < 0.05. Additionally, this group had higher rates of unplanned reoperation (9.2 vs. 3.7%) and 30-day readmissions (3.5 vs. 1.0%), p < 0.01. On risk-adjusted multivariate regression analyses, class III obesity was independently associated with increased risk of wound complications (OR 2.22, p < 0.01), sepsis (OR 3.53, p < 0.01), medical adverse events (OR 1.98, p < 0.05), unplanned reoperation (OR 1.62, p < 0.05) and 30-day readmission (OR 2.30, p < 0.05). CONCLUSION: Class III obesity patients are at significantly increased risk of adverse outcomes following abdominal contouring. Plastic surgeons should consider these risks for counseling and preoperative risk optimization. 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- 29026964 TI - Effects of Nitrogen and Phosphorus Fertilizer and Topsoil Amendment on Native Plant Cover in Roadside Revegetation Projects. AB - Establishing vegetation on roadsides following construction can be challenging, especially for relatively slow growing native species. Topsoil is generally removed during construction, and the surface soil following construction ("cut slope soils") is often compacted and low in nutrients, providing poor growing conditions for vegetation. Nebraska Department of Transportation (NDOT) protocols have historically called for nitrogen (N) and phosphorus (P) fertilization when planting roadside vegetation following construction, but these recommendations were developed for cool-season grass plantings and most current plantings use slower-establishing, native warm-season grasses that may benefit less than expected from current planting protocols. We evaluated the effects of nitrogen and phosphorus fertilization, and also topsoil amendment, on the foliar cover of seeded and non-seeded species planted into two post-construction roadside sites in eastern Nebraska. We also examined soil movement to determine how planting protocols and plant growth may affect erosion potential. Three years after planting, we found no consistent effects of N or P fertilization on foliar cover. Plots receiving topsoil amendment had 14% greater cover of warm-season grasses, 10% greater total foliar cover, and 4-13% lower bare ground (depending on site) than plots without topsoil. None of the treatments consistently affected soil movement. We recommend that NDOT change their protocols to remove N and P fertilization and focus on stockpiling and spreading topsoil following construction. PMID- 29026963 TI - An Evaluation of the Role of Simulation Training for Teaching Surgical Skills in Sub-Saharan Africa. AB - BACKGROUND: An estimated 5 billion people worldwide lack access to any surgical care, whilst surgical conditions account for 11-30% of the global burden of disease. Maximizing the effectiveness of surgical training is imperative to improve access to safe and essential surgical care on a global scale. Innovative methods of surgical training have been used in sub-Saharan Africa to attempt to improve the efficiency of training healthcare workers in surgery. Simulation training may have an important role in up-scaling and improving the efficiency of surgical training and has been widely used in SSA. Though not intended to be a systematic review, the role of simulation for teaching surgical skills in Sub Saharan Africa was reviewed to assess the evidence for use and outcomes. METHODS: A systematic search strategy was used to retrieve relevant studies from electronic databases PubMed, Ovid, Medline for pertinent articles published until August 2016. Studies that reported the use of simulation-based training for surgery in Africa were included. RESULTS: In all, 19 articles were included. A variety of innovative surgical training methods using simulation techniques were identified. Few studies reported any outcome data. Compared to the volume of surgical training initiatives that are known to take place in SSA, there is very limited good quality published evidence for the use of simulation training in this context. CONCLUSIONS: Simulation training presents an excellent modality to enhance and improve both volume and access to high quality surgical skills training, alongside other learning domains. There is a desperate need to meticulously evaluate the appropriateness and effectiveness of simulation training in SSA, where simulation training could have a large potential beneficial impact. Training programs should attempt to assess and report learner outcomes. PMID- 29026965 TI - Cutting the Holy Dome: The Evolution of Vertical Alar Resection. AB - INTRODUCTION: Dome division or vertical dome division (VDD) is a tip plasty technique that is effective when applied appropriately to suitable patients. For 15 years, we have used VDD and made modifications as needed. In classical VDD, the dome area is cut and left to heal, but experience shows that additional components are needed to complement dome division, such as sutures or grafts. In this study, we retrospectively analysed our rhinoplasty patients in whom we used vertical alar resection (VAR) to assess the advantages and disadvantages of this technique. To our knowledge, this is one of the most exhaustive studies of VDD, including over 3000 patients. MATERIALS AND METHODS: This retrospective case series reviewed the charts of 3965 patients who underwent VAR between 2000 and 2015. All patients were operated on by the senior surgeon. Dome division was used for various reasons, including a deformed tip area in revision rhinoplasties, droopy nose, wide tip, pinched nose, tip asymmetry, and overprojected nasal tip. Patients were excluded if they had septal deviation that enabled tip rotation, or a dorsum problem that caused tip asymmetry. RESULTS: The study included 3965 patients (3172 women and 793 men) who underwent open rhinoplasty from 2000 to 2015. The mean patient age was 28.3 years (range 18-50 years). The mean clinical follow-up duration was 11.2 years. CONCLUSION: In conclusion, this technique is capable of modifying all parameters of the nasal tip (projection, rotation, and volume), as required, at the same time, addressing many tip problems. 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- 29026966 TI - The Clinical Implications of Liver Resection Margin Size in Patients with Hepatocellular Carcinoma in Terms of Positron Emission Tomography Positivity. AB - BACKGROUND: The positivity of positron emission tomography (PET) in hepatocellular carcinoma (HCC) correlates with aggressive tumor factors and poor survival. Adequate resection margin size is still a topic of debate. We analyzed the clinical implications of resection margin size in patients with HCC in terms of PET positivity. METHODS: We retrospectively reviewed the medical records of 92 patients who underwent liver resection from March 2012 to October 2015. We investigated prognostic factors for recurrence and survival. We analyzed the correlation of resection margin size and PET positivity. Resection margins were classified as less than 1 cm and more than 1 cm. RESULTS: Twenty six (31.3%) patients had PET-positive HCC. Multivariate analysis showed PET, satellite nodules, microvessel invasion, and multicentric occurrence were significant prognostic factors for HCC recurrence. Multivariate analysis also showed satellite nodules and microscopic portal vein invasion were significant prognostic factors for overall survival (OS). Resection margin size did not affect disease-free survival (DFS) (p = 0.681) or OS (p = 0.301) in patients with PET-negative HCC, but showed a difference in DFS [<1 cm at 11 months vs. >=1 cm at 41 months (p = 0.188)] and OS [<1 cm at 28 months vs. >=1 cm at 48 months (p < 0.001)] in patients with PET-positive HCC. CONCLUSIONS: PET has low sensitivity for HCC. However, it is useful to predict treatment outcomes after liver resection or liver transplantation for HCC. Although the extent of liver resection must be decided based on liver function, a resection margin size >1 cm may improve DFS and OS in patients with PET-positive HCC. PMID- 29026967 TI - A rat model of FOLFOX-induced neuropathy: effects of oral dimiracetam in comparison with duloxetine and pregabalin. AB - BACKGROUND AND AIM: The FOLFOX family of chemotherapy regimens are hampered by the development of a painful neuropathy. Current clinical treatments are inadequate, and furthermore, the research of innovative drugs is strongly disadvantaged by the absence of a preclinical model based on the complete mixture of FOLFOX components. The aim of this study was to set up a rat model of FOLFOX induced neuropathy in rats, validate its predictability by reference drugs, and evaluate the effectiveness of the new anti-neuropathic compound dimiracetam. METHODS: Male Sprague-Dawley rats were treated intraperitoneally with the FOLFOX components (6 mg kg-1 oxaliplatin, 50 mg kg-1 5-FU, 90 mg kg-1 leucovorin calcium salt) or oxaliplatin alone (6 mg kg-1) on days 0, 7, 14, and 21, whereas a separate group received one more injection of FOLFOX on day 28. Pain behavioural measurements (paw pressure, cold plate, and electronic Von Frey tests) and motor coordination (Rota-rod test) were assessed before and after treatments. Behavioural, motor, neurological, and autonomic parameters (open field and Irwin tests) were evaluated. RESULTS: FOLFOX reduced the pain threshold in response to mechanical noxious and thermal (cold) non-noxious stimuli beginning from day 14 up to day 42 comparably to oxaliplatin alone. A fifth FOLFOX injection enhanced the severity but not the duration of painful alterations. Spontaneous activity, behavioural, autonomic, and neurological functions were also affected, whereas the motor coordination was not altered. On day 22, duloxetine (15 mg kg-1, per os), morphine (10 mg kg-1, subcutaneously), or pregabalin (20 mg kg-1, per os), acutely administered, reduced the FOLFOX-dependent hypersensitivity. Repeated treatments with dimiracetam (150 mg kg-1, per os, twice daily, from day 22) significantly protected rats from FOLFOX-induced alterations of pain threshold as well as from autonomic and neurological impairments taking effect after 7 days treatment. Pregabalin repeatedly administered (20 mg kg-1, per os, twice daily, from day 22) was less effective in reducing mechanical hypersensitivity. CONCLUSION: A clinically consistent model of FOLFOX-induced neurotoxicity has been developed in rats. Dimiracetam fully reduced hypersensitivity and neurological alterations showing a relevant profile as anti-neuropathic resource. PMID- 29026968 TI - Clinical Outcome, Social Impact and Patient Expectation: a Purposive Sampling Pilot Evaluation of Patients in Benin Seven Years After Surgery. AB - BACKGROUND: Access to affordable and timely surgery is not equitable around the world. Five billion people lack access, and while non-governmental organizations (NGOs) help to meet this need, long-term surgical outcomes, social impact or patient experience is rarely reported. METHOD: In 2016, Mercy Ships, a surgical NGO, undertook an evaluation of patients who had received surgery seven years earlier with Mercy Ships in 2009 in Benin. Using purposive sampling, patients who had received maxillofacial, plastics or orthopedic surgery were invited to attend a surgical evaluation day. In this pilot study, we used semi-structured interviews and questionnaire responses to assess patient expectation, surgical and social outcome. RESULTS: Our results show that seven years after surgery 35% of patients report surgery-related pain and 18% had sought further care for a clinical complication of their condition. However, 73% of patients report gaining social benefit from surgery, and overall patient satisfaction was 89%, despite 35% of patients saying that they were unclear what to expect after surgery indicating a mismatch of doctor/patient expectations and failure of the consent process. CONCLUSION: In conclusion, our pilot study shows that NGO surgery in Benin provided positive social impact associated with complication rates comparable to high-income countries when assessed seven years later. Key areas for further study in LMICs are: evaluation and treatment of chronic pain, consent and access to further care. PMID- 29026969 TI - Extended Serum Lipid Profile Predicting Long-Term Survival in Patients Treated for Abdominal Aortic Aneurysms. AB - BACKGROUND: Individuals treated for abdominal aortic aneurysms (AAAs) are high risk patients in whom better risk prediction could improve survival. Contemporary serum lipid parameters, such as apolipoproteins and lipoprotein subfractions, may improve or complement the prognostic value of traditional serum lipids. The aim of this study was to ascertain the extended serum lipid profiles, long-term prognosis and their association in AAA patients. METHODS: Altogether 498 patients treated for AAAs and with available serum lipid values were retrospectively analysed. Contemporary lipid parameters were estimated using a neural network model, the extended Friedewald formula. RESULTS: Younger age, smoking and urgent or emergency surgery were associated with an unfavourable, and coronary disease and previous stroke with a favourable lipid profile. In multivariable analysis-in addition to advanced age, aneurysm rupture, smoking, pulmonary disease and diabetes-high triglycerides and traditional LDL cholesterol were significant independent risk factors for mortality, HR 1.84 (95% CI 1.20-2.81) and 1.79 (95% CI 1.18-2.73), respectively, while higher EFW-IDL cholesterol was associated with better survival, HR 0.31 (95% CI 0.19-0.65). Including serum lipid parameters improved the prediction of 5-year survival (NRI = 17.7%, p = 0.016). CONCLUSIONS: Extended serum lipid parameters complement risk prediction of patients treated for AAAs. An unfavourable lipid profile is associated with treatment of AAA earlier in life and with inferior long-term survival. PMID- 29026970 TI - Determination of the Amount of Ptosis Correction in Levator Resection Surgery for Pediatric Congenital Ptosis. AB - BACKGROUND: It is difficult to determine the amount of eyelid lift in levator resection surgery for congenital ptosis, especially when the surgery is performed under general anesthesia. We aim to introduce an objective and steady method with which to adjust eyelid height, and to identify other factors to be considered during surgery. METHODS: This is a retrospective, observational study of 110 eyes from 78 patients who underwent levator resection surgery for congenital ptosis. Postoperative eyelid height was observed chronologically. The amount of eyelid lift during surgery was compared with the real postoperative change of palpebral fissure width (PF). The factors influencing the postoperative changes in eyelid height were investigated to predict outcome. RESULTS: Postoperative eyelid height stabilized 1 month after surgery. The real postoperative change in PF was slightly larger than the amount of intraoperative eyelid lift in cases with levator muscle function (LF) >= 7 mm, whereas it tended to be smaller in cases with LF < 5 mm. Statistically significant factors influencing the difference between the amount of intraoperative eyelid lift and the real postoperative change of eyelid height included preoperative PF, preoperative LF, and anesthesia induced lagophthalmos. CONCLUSION: The preoperative PF, preoperative LF, and anesthesia-induced lagophthalmos should be considered when determining the amount of ptosis correction to perform in levator resection surgery. 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- 29026971 TI - Is impaired cerebral vasoreactivity an early marker of cognitive decline in multiple sclerosis patients? AB - OBJECTIVE: The link between cerebral vasoreactivity and cognitive status in multiple sclerosis remains unclear. The aim of the present study was to investigate a potential decrease of cerebral vasoreactivity in multiple sclerosis patients and correlate it with cognitive status. METHODS: Thirty-three patients with multiple sclerosis (nine progressive and 24 remitting forms, median age: 39 years, 12 males) and 22 controls underwent MRI with a hypercapnic challenge to assess cerebral vasoreactivity and a neuropsychological assessment. Cerebral vasoreactivity, measured as the cerebral blood flow percent increase normalised by end-tidal carbon dioxide variation, was assessed globally and by regions of interest using the blood oxygen level-dependent technique. Non-parametric statistics tests were used to assess differences between groups, and associations were estimated using linear models. RESULTS: Cerebral vasoreactivity was lower in patients with cognitive impairment than in cognitively normal patients (p=0.004) and was associated with education level in patients (R2 = 0.35; p = 0.047). There was no decrease in cerebral vasoreactivity between patients and controls. CONCLUSIONS: Cognitive impairment in multiple sclerosis may be mediated through decreased cerebral vasoreactivity. Cerebral vasoreactivity could therefore be considered as a marker of cognitive decline in multiple sclerosis. KEY POINTS: * Cerebral vasoreactivity does not differ between multiple sclerosis patients and controls. * Cerebral vasoreactivity measure is linked to cognitive impairment in multiple sclerosis. * Cerebral vasoreactivity is linked to level of education in multiple sclerosis. PMID- 29026972 TI - Retroperitoneal lymph node dissection for testicular seminomas: population-based practice and survival outcomes. AB - PURPOSE: While retroperitoneal lymph node dissection (RPLND) is traditionally reserved for nonseminomatous germ cell tumors, recent efforts to reduce long-term toxicities of radiation and chemotherapy have turned attention to its application for testicular seminomas. Currently, RPLND is reserved for the post-chemotherapy for stage II testicular seminomas; we aimed to describe current utilization of RPNLD for testicular seminomas by stage and implications for survival. METHODS: A national sample of men diagnosed with stage IA/IB/IS/IIA/IIB/IIC testicular seminoma (1988-2013) was evaluated from SEER Program registries. Stage-specific utilization of RPLND was determined. Cox proportional hazards models, adjusted for age, race, and radiotherapy, evaluated overall (OS) and cancer-specific survival (CSS) for the RPLND cohort. Adjusted models assessed predictors of RPLND. RESULTS: A total of 17,681 men (mean age 38.1 years) with testicular seminoma were included with low utilization of RPLND for stage I disease (1.3% overall) and higher rates for stage II disease (10.6% overall). There were no appreciable trends over time. Patients receiving RPLND did not appear to have worse OS or CSS on adjusted stage-by-stage analysis. Higher stage disease (IIA IIC) was associated with greater need for RPLND while radiotherapy was associated with decreased use [OR 0.40 (0.32-0.51), p < 0.001]. CONCLUSIONS: Utilization of RPLND for testicular seminomas in the post-chemotherapy setting has remained stable over a 25-year period. Patients undergoing RPLND are a higher risk cohort but stage-by-stage survival outcomes appeared comparable to men not undergoing RPLND. Upcoming trials implementing RPLND as a first-line modality for testicular seminoma or isolated retroperitoneal relapse will help better quantify relative recurrence and survival. PMID- 29026973 TI - Active DNA demethylation: mechanism and role in plant development. AB - Active DNA demethylation (enzymatic removal of methylated cytosine) regulates many plant developmental processes. In Arabidopsis, active DNA demethylation entails the base excision repair pathway initiated by the Repressor of silencing 1/Demeter family of bifunctional DNA glycosylases. In this review, we first present an introduction to the recent advances in our understanding about the mechanisms of active DNA demethylation. We then focus on the role of active DNA demethylation in diverse developmental processes in various plant species, including the regulation of seed development, pollen tube formation, stomatal development, fruit ripening, and nodule development. Finally, we discuss future directions of research in the area of active DNA demethylation. PMID- 29026974 TI - Pheochromocytoma as a frequent false-positive in adrenal washout CT: A systematic review and meta-analysis. AB - OBJECTIVE: To evaluate the proportion of pheochromocytomas meeting the criteria for adenoma on adrenal washout CT and the diagnostic performance of adrenal washout CT for differentiating adenoma from pheochromocytoma. METHODS: MEDLINE and EMBASE were searched to 28 March 2017. We included studies that used adrenal washout CT for characterisation of pheochromocytomas. Two independent reviewers assessed the methodological quality using Quality Assessment of Diagnostic Accuracy Studies-2. Proportions were pooled using an inverse variance method for calculating weights (random-effects). Sensitivity and specificity were pooled using hierarchical logistic regression modelling and plotted in a hierarchical summary receiver-operating-characteristics (HSROC) plot. RESULTS: Ten studies (114 pheochromocytomas) were included. The pooled proportion of pheochromocytomas meeting the criteria for adenomas was 35 % (95 % CI 20-51). For eight studies providing information on diagnostic performance, the pooled sensitivity and specificity for differentiating adenoma from pheochromocytoma were 0.97 (95 % CI 0.93-0.99) and 0.67 (95 % CI 0.44-0.84), respectively. The area under the HSROC curve was 0.97 (95 % CI 0.95-0.98). CONCLUSIONS: There was a non-negligible proportion of pheochromocytomas meeting the criteria for adenoma on adrenal washout CT. Although overall diagnostic performance was excellent for differentiating adenoma from pheochromocytoma, specificity was relatively low. KEY POINTS: * Non-negligible proportion of pheochromocytomas can be mistaken for adenoma. * Adrenal washout CT showed good sensitivity (97%) but relatively low specificity (67%). * Findings other than washout percentage should be used when diagnosing pheochromocytomas. PMID- 29026975 TI - Effect of isoliquiritigenin for the treatment of atopic dermatitis-like skin lesions in mice. AB - Atopic dermatitis (AD) is a common chronic inflammatory skin disease characterized with high heterogeneity. Recent studies have suggested that it is driven by both terminal keratinocyte differentiation defects and type 2 immune responses. The mainstay steroid topical therapy has severe side effect and new treatment is in demand. Isoliquiritigenin (ISLG) is a small phenolic bioactive molecule from licorice that has shown multiple pharmacological effects against cancer, inflammatory disorder, and cardiovascular diseases. ISLG was evaluated in AD-like lesion model induced by the repetitive application of 2,4 dinitrochlorobenzene (DNCB) in BALB/c mice. Overall symptom score, serological and molecular changes of the skin lesions were evaluated. ISLG could ameliorate the overall manifestation of AD-like symptoms including scratching behavior incidence and skin lesion severity. At blood level, ISLG significantly suppressed the DNCB-induced IgE and Th2 cytokines up-regulation. At skin lesion site, ISLG also inhibited DNCB-induced pro-inflammatory cytokines like TNF-alpha, IL-6 as well as IL-4 expressions. In a human monocyte model THP-1, ISLG suppressed the up regulation of CD86 and CD54 and abolished the DNCB-induced p38-alpha and ERK activation, suggesting a molecular mechanism for ISLG therapy. This study indicated that ISLG could be a potential therapeutic agent for the treatment of AD. PMID- 29026978 TI - Enigma of scapular foramen and tunnels: an untold story. AB - PURPOSE: The study was undertaken to make a qualitative and quantitative assessment of unnamed foramen and tunnels in adult human scapulae with aid of plain and contrast radiographs. MATERIALS AND METHODS: A total of 120 dry bones, 60 each of the right and the left side were included in the study. Distribution of these foramina and tunnels was noted for their number, side, location, course and communication. Their morphometry was done using Vernier's caliper. RESULTS: Incidence of scapular foramina was 7.5% (R > L), whereas scapular tunnels were seen in 15.8% cases. Incidence of the sinuous, curved, and straight tunnels was found to be 50, 39, and 10.7% respectively. Left-sided tunnels were longer than the right ones. Plain and contrast radiographs were taken to confirm the findings. CONCLUSION: Anatomy literature describes only two scapular foramina, namely, nutrient foramen and suprascapular foramen/notch in a great zeal; occurrence of such anonymous foramina is hardly discussed. Through this study, there is an endeavor towards unfolding the mystery of scapular foramina in terms of their morphometry and distribution, the knowledge of which will aid clinicians, forensic experts, and surgeons in better diagnosis and management of clinical cases. PMID- 29026979 TI - HPAEC-PAD for oligosaccharide analysis-novel insights into analyte sensitivity and response stability. AB - The rising importance of accurately detecting oligosaccharides in biomass hydrolyzates or as ingredients in food, such as in beverages and infant milk products, demands for the availability of tools to sensitively analyze the broad range of available oligosaccharides. Over the last decades, HPAEC-PAD has been developed into one of the major technologies for this task and represents a popular alternative to state-of-the-art LC-MS oligosaccharide analysis. This work presents the first comprehensive study which gives an overview of the separation of 38 analytes as well as enzymatic hydrolyzates of six different polysaccharides focusing on oligosaccharides. The high sensitivity of the PAD comes at cost of its stability due to recession of the gold electrode. By an in-depth analysis of the sensitivity drop over time for 35 analytes, including xylo- (XOS), arabinoxylo- (AXOS), laminari- (LOS), manno- (MOS), glucomanno- (GMOS), and cellooligosaccharides (COS), we developed an analyte-specific one-phase decay model for this effect over time. Using this model resulted in significantly improved data normalization when using an internal standard. Our results thereby allow a quantification approach which takes the inevitable and analyte-specific PAD response drop into account. Graphical abstract HPAEC-PAD analysis of oligosaccharides and determination of PAD response drop leading to an improved data normalization. PMID- 29026977 TI - Mesh Versus Patch Repair for Epigastric and Umbilical Hernia (MORPHEUS Trial); One-Year Results of a Randomized Controlled Trial. AB - DESIGN: This trial is a randomized controlled, patient-blinded, multicentre, superiority trial. METHODS: All patients >=18 years with a single, symptomatic and primary umbilical or epigastric hernia (<2 fingers) qualified for participation in the study. Flat polypropylene mesh repair was compared to patch repair (PROCEED(r) Ventral Patch) (PVP). The objective of this trial was to identify a superior method for umbilical and epigastric hernia repair in terms of complication rates. RESULTS: A total of 352 patients were randomized in this trial; 348 patients received the intervention (n = 177 PVP vs. n = 171 mesh). No peri-operative complications occurred. PVP placement was significantly faster compared to mesh placement (30 min, SD 11 vs. 35 min, SD 11) and was scored as an easier procedure. At 1-month follow-up, 76 patients suffered any kind of complication. There was no significant difference in the proportion of complications (24.9% for PVP and 18.7% for mesh, p = 0.195). A significant difference was seen in re-operation rate within 1 month, significantly less early re-operations in the mesh group (0.0 vs. 2.8%, p = 0.027). After 1-year follow up, no significant differences are seen in recurrence rates (n = 13, 7.8% PVP vs. n = 5, 3.3% mesh, p = 0.08). CONCLUSIONS: Both mesh and PVP had a comparable amount of reported complications. There was a significantly higher incidence of early re-operations due to early complications in the PVP group. No differences were seen in infection rates and the need for antibiotic treatment. No significant difference was seen in the recurrence rates. REGISTRATION: This trial was registered in the Dutch Trail Registry (NTR) NTR2514NL33995.060.10. [12]. PMID- 29026981 TI - A clinical scoring system to predict the development of intraventricular hemorrhage (IVH) in premature infants. AB - : OBJECTiVE: The aim of this study is to develop a scoring system for the prediction of intraventricular hemorrhage (IVH) in preterm infants in the first 7 days of life. METHODS: A prospective, clinical study was conducted in Bahcesehir University, Medical Park Goztepe Hospital Neonatal Intensive Care Unit, with the enrollment of 144 preterm infants with gestational age between 24 and 34 weeks. All preterms were followed up for IVH after birth until the 4th week of life. The demographic characteristics and clinical risk factors were noted. Risk factors were analyzed. The score was established after logistic regression analysis, considering the impact of each variable on the occurrence of IVH within the first 7 days of life. The IVH scores were further applied prospectively to 89 preterm infants as validation cohort. RESULTS: Low gestational age (GA), low Apgar score, and having bleeding diathesis were the most important risk factors for IVH. According to these risk factors, a scoring system was developed for IVH ranged from 0 to 5. According to the risk ratios (RR) obtained from the logistic regression model, low GA (<= 28 gestational week), presence of bleeding diathesis within 7 days, and low Apgar score increased the risk of IVH (RR = 3.32 for GA <= 28 gestational week, RR = 6.7 for presence of bleeding diathesis in 7th day, RR = 3 for having low Apgar score). The score was validated successfully in 89 infants. The area under ROC curve was 0.85 for derivation cohort and 0.807 for validation cohort. The predictive ability of the IVH score for derivation and validation cohort was calculated. The negative predictive values of a score less than 4 were 96.4 and 59.1%. CONCLUSiON: Concerning IVH-related sequelae which continue to be a major public health problem, we have developed a feasible predictive model for evaluating the risk for developing IVH for preterm infants in the first 7 days of life. PMID- 29026980 TI - Evolution of the androgen-induced male phenotype. AB - The masculine reproductive phenotype varies significantly across vertebrates. As a result, biologists have long recognized that many of the mechanisms that support these phenotypes-particularly the androgenic system-is evolutionarily labile, and thus susceptible to the effects of selection for different traits. However, exactly how androgenic signaling systems vary in a way which results in dramatically different functional outputs, remain largely unclear. We explore this topic here by outlining four key-but non-mutually exclusive-hypotheses that propose how the mechanisms of androgenic signaling might change over time to potentiate the emergence of phenotypical variation in masculine behavior and physiology. We anchor this framework in a review of our own studies of a tropical bird called the golden-collared manakin (Manacus vitellinus), which has evolved an exaggerated acrobatic courtship display that is heavily androgen-dependent. The result is an example of how the cellular basis of androgenic action can be modified to support a unique reproductive repertoire. We end this review by highlighting a broad pathway forward to further pursue the intricate ways by which the mechanisms of hormone action evolve to support processes of adaptation and animal design. PMID- 29026982 TI - Severe Hemoptysis Associated with Bacterial Pulmonary Infection: Clinical Features, Significance of Parenchymal Necrosis, and Outcome. AB - PURPOSE: Severe hemoptysis (SH) associated with non-tuberculosis bacterial lower respiratory tract infection (LRTI) is poorly described, and the efficacy of the usual decision-making process is unknown. This study aimed at describing the clinical, radiological patterns, mechanism, and microbiological spectrum of SH related to bacterial LRTI, and assessing whether the severity of hemoptysis and the results of usual therapeutic strategy are influenced by the presence of parenchymal necrosis. METHODS: A single-center analysis of patients with SH related to bacterial LRTI from a prospective registry of consecutive patients with SH admitted to the intensive care unit of a tertiary referral center between November 1996 and May 2013. RESULTS: Of 1504 patients with SH during the study period, 65 (4.3%) had SH related to bacterial LRTI, including non-necrotizing infections (n = 31), necrotizing pneumonia (n = 23), pulmonary abscess (n = 10), and excavated nodule (n = 1). The presence of parenchymal necrosis (n = 34, 52%) was associated with a more abundant bleeding (volume: 200 ml [70-300] vs. 80 ml [30-170]; p = 0.01) and a more frequent need for endovascular procedure (26/34; 76% vs. 9/31; 29%; p < 0.001). Additionally, in case of parenchymal necrosis, the pulmonary artery vasculature was involved in 16 patients (47%), and the failure rate of endovascular treatment was up to 25% despite multiple procedures. CONCLUSIONS: Bacterial LRTI is a rare cause of SH. The presence of parenchymal necrosis is more likely associated with bleeding severity, pulmonary vasculature involvement, and endovascular treatment failure. PMID- 29026976 TI - Reductive evolution of chloroplasts in non-photosynthetic plants, algae and protists. AB - Chloroplasts are generally known as eukaryotic organelles whose main function is photosynthesis. They perform other functions, however, such as synthesizing isoprenoids, fatty acids, heme, iron sulphur clusters and other essential compounds. In non-photosynthetic lineages that possess plastids, the chloroplast genomes have been reduced and most (or all) photosynthetic genes have been lost. Consequently, non-photosynthetic plastids have also been reduced structurally. Some of these non-photosynthetic or "cryptic" plastids were overlooked or unrecognized for decades. The number of complete plastid genome sequences and/or transcriptomes from non-photosynthetic taxa possessing plastids is rapidly increasing, thus allowing prediction of the functions of non-photosynthetic plastids in various eukaryotic lineages. In some non-photosynthetic eukaryotes with photosynthetic ancestors, no traces of plastid genomes or of plastids have been found, suggesting that they have lost the genomes or plastids completely. This review summarizes current knowledge of non-photosynthetic plastids, their genomes, structures and potential functions in free-living and parasitic plants, algae and protists. We introduce a model for the order of plastid gene losses which combines models proposed earlier for land plants with the patterns of gene retention and loss observed in protists. The rare cases of plastid genome loss and complete plastid loss are also discussed. PMID- 29026983 TI - Quartz crystal microbalance as an assay to detect anti-drug antibodies for the immunogenicity assessment of therapeutic biologics. AB - Because of their biological origins, therapeutic biologics can trigger an unwanted deleterious immune response with some patients. The immunogenicity of therapeutic biologics can affect drug efficacy and patient safety by the production of circulating anti-drug antibodies (ADA). In this study, quartz crystal microbalance (QCM) was developed as an assay to detect ADA. Etanercept (Enbrel(r)) was covalently grafted to dextran-modified QCM surfaces. Rabbits were immunized with etanercept to generate ADA. Results showed the QCM assay could detect purified ADA from rabbits at concentrations as low as 50 ng/mL, within the sensitivity range of ELISA. The QCM assay could also assess the ADA isotype. It was shown that the ADA were composed of the IgG isotype, but not IgM, as expected. Furthermore, it was shown that QCM surfaces that had been used to detect ADA could be regenerated in glycine-HCl solution and reused. The QCM assay was also demonstrated to detect ADA in crude serum samples. Serum was collected from the rabbits and analyzed before and after etanercept immunization. ADA were clearly detected in serum from rabbits after immunization, but not in serum before immunization. Serum from patients administered with etanercept for rheumatoid arthritis (RA) treatment was also analyzed and compared to serum from healthy donors. Sera from 10 RA patients were analyzed. Results showed one of the RA patient serum samples may have ADA present. In conclusion, QCM appears to be a viable assay to detect ADA for the immunogenicity assessment of therapeutic biologics. PMID- 29026985 TI - Deep lobe parotidectomy-why, when, and how? AB - This editorial explores the controversies concerning the surgical management of the deep portion of the parotid gland. Specifically, when should the parotid deep lobe be removed if there is metastatic cancer to a superficial parotid node or when a primary aggressive cancer is found in the superficial lobe? The background, indications, rationale, and results of removing the deep lobe nodes are reviewed. Removal of the deep lobe is done to optimize the oncologic outcome for the patient. Deep lobe parotidectomy plays an important role in the treatment of many parotid gland malignancies. PMID- 29026986 TI - Inter-individual differences in decision-making, flexible and goal-directed behaviors: novel insights within the prefronto-striatal networks. AB - Inflexible behavior is a hallmark of several decision-making-related disorders such as ADHD and addiction. As in humans, a subset of healthy rats makes poor decisions and prefers immediate larger rewards despite suffering large losses in a rat gambling task (RGT). They also display a combination of traits reminiscent of addiction, notably inflexible behavior and perseverative responses. The goal of the present work was twofold: (1) to elucidate if behavioral inflexibility of poor decision-makers could be related to a lower quality of goal-directed behavior (action-outcome associations); (2) to uncover the neural basis of inter individual differences in goal-directed behavior. We specifically assessed inter individual differences in decision-making in the RGT, flexibility in the RGT reversed version and goal-directed behavior in a contingency degradation test, i.e., response adaptation when dissociating reward delivery from the animal's action. The contributions of the medial prefrontal cortex and the dorsal striatum to action-outcome associations were assessed using Zif268 immunodetection. Inflexible behavior was related to a lower sensitivity to contingency degradation in all poor decision-makers and only in a few good decision-makers. This poorer sensitivity was associated with a lower immunoreactivity in prelimbic and infralimbic cortices and a higher one in the dorsomedial and dorsolateral striatum. These findings suggest that an imbalanced prefronto-striatal activity could underlie inaccurate goal representation in changing environments and may promote maladaptive habit formation among poor decision-makers. These data strengthen our previous work identifying biomarkers of vulnerability to develop psychiatric disorders and demonstrate the relevance of inter-individual differences to model maladaptive behaviors. PMID- 29026984 TI - Flooding Duration Affects the Structure of Terrestrial and Aquatic Microbial Eukaryotic Communities. AB - The increasing number and duration of inundations is reported to be a consequence of climate change and may severely compromise non-adapted macroorganisms. The effect of flooding events on terrestrial and aquatic microbial communities is, however, less well understood. They may respond to the changed abiotic properties of their native habitat, and the native community may change due to the introduction of alien species. We designed an experiment to investigate the effect of five different flooding durations on the terrestrial and aquatic communities of eukaryotic microorganism, using the AquaFlow mesocosms. With amplicon sequencing of the small subunit (SSU) and internal transcribed spacer (ITS) rRNA gene regions, we analyzed community compositions directly before and after flooding. Subsequently, they were monitored for another 28 days, to determine the sustainability of community changes. Our results revealed a temporary increase in similarity between terrestrial and aquatic communities according to OTU composition (operational taxonomic unit, serves as a proxy for species). Increased similarity was mainly caused by the transmission of OTUs from water to soil. A minority of these were able to persist in soil until the end of the experiment. By contrast, the vast majority of soil OTUs was not transmitted to water. Flooding duration affected the community structure (abundance) more than composition (occurrence). Terrestrial communities responded immediately to flooding and the flooding duration influenced the community changes. Independent from flooding duration, all terrestrial communities recovered largely after flooding, indicating a remarkable resilience to the applied disturbances. Aquatic communities responded immediately to the applied inundations too. At the end of the experiment, they grouped according to the applied flooding duration and the amount of ammonium and chloride that leached from the soil. This indicates a sustained long-term response of the aquatic communities to flooding events. PMID- 29026988 TI - Pulmonary annular motion velocity reflects right ventricular outflow tract function in children with surgically repaired congenital heart disease. AB - Right ventricular (RV) dysfunction is generally evaluated using analyses of tricuspid annular motion. However, it represents only one aspect of RV performance. Whether measuring pulmonary annular motion velocity could serve as a novel way to evaluate global RV and/or RV outflow tract (RVOT) performance in pediatric congenital heart disease (CHD) patients with surgically repaired RVOT was evaluated. In this prospective study, tissue Doppler-derived pulmonary annular motion velocity was measured in children (aged 2-5 years) with RVOT reconstruction (RVOTR group, n = 48) and age-matched healthy children (Control, n = 60). The types of RVOTR procedures were as follows: pulmonary valve-sparing procedure (PVS, n = 7); transannular patch with monocusp valve reconstruction (TAP, n = 29); and RV-to-PA conduit reconstruction using a pericardial valve with expanded polytetrafluoroethylene conduit (Rastelli, n = 12). Pulmonary annular motion velocity waveforms comprised systolic bimodal (s1' and s2') and diastolic e' and a' waves in all participants. The peak velocities of s1', s2', e', and a' were significantly lower in the RVOTR group than in the control group (all p < 0.0001). Furthermore, these parameters depended significantly on the type of surgical procedure. The peak velocities of s1', s2', and e' had significant correlations with RVOT ejection fraction (RVOT-EF) (r = 0.56, 0.49, and 0.34, respectively), and RVOT fractional shortening (RVOT-FS) (r = 0.72, 0.55, and 0.41, respectively), although there were no significant correlations between pulmonary annular motion and global RV function, including RV ejection fraction (RVEF) and RV fractional area change (RVFAC) in the assessment of all RVOTR group patients. The pulmonary annular motion parameters in the PVS group had significant correlations with both global RV and RVOT performance. The TAP group showed significant correlations between RVOT function and pulmonary annular motion. The Rastelli group showed almost no significant correlations between RV/RVOT function and tissue Doppler parameters. Pulmonary annular motion velocity is a simple, rapid, reproducible, and useful method of assessing RVOT function in children with surgically repaired CHD. PMID- 29026987 TI - Acetylcholinesterase activity and time after a peak pesticide-use period among Ecuadorian children. AB - PURPOSE: Mother's Day (May) is a holiday with substantial demand for flowers, associated with heightened flower production and escalated pesticide use. The effect of spray seasons on pesticide exposures of children living in agricultural communities but who do not work in agriculture is poorly understood. In this study, we estimated the association of time after Mother's Day harvest with children's acetylcholinesterase (AChE) activity. AChE is a physiological marker of organophosphate/carbamate pesticide exposures that may take up to 3 months to normalize after its inhibition. METHODS: We examined 308 children, aged 4-9 years, in Ecuadorian agricultural communities during a low flower-production season but within 63-100 days (mean: 81.5 days, SD: 10.9) after Mother's Day harvest. We quantified AChE activity (mean: 3.14 U/mL, SD: 0.49) from a single finger-stick sample. RESULTS: We observed positive linear associations between time after the harvest and AChE among participants living near plantations. The associations were strongest among participants living within 233 m [(0.15 U/mL (95% CI 0.02, 0.28)], slightly weaker among participants living within 234-532 m [0.11 U/mL (0.00, 0.23)], and not associated among participants at greater distances. Similar findings were observed across categories of areas of flower plantations within 500 m of homes. CONCLUSIONS: These cross-sectional findings suggest that a peak pesticide-use period can decrease AChE activity of children living near plantations. These seasonal pesticide exposures could induce short- and long-term developmental alterations in children. Studies assessing exposures at multiple times in relation to pesticide spray seasons among children who do not work in agriculture are needed. PMID- 29026989 TI - The pattern, peculiarities, and management challenges of spina bifida in a teaching hospital in Southwest Nigeria. AB - PURPOSE: Spina bifida is a common congenital anomaly of the nervous system. It is frequently associated with significant morbidity and sometimes mortality in affected children. In this paper, we review the clinico-epidemiological pattern, peculiarities, and therapeutic challenges of this condition in our practice setting. METHODS: This is a retrospective study of all cases of spina bifida managed from July 2000 to March 2016 at a tertiary health facility located in the southwest region of Nigeria. Relevant information was retrieved from the medical records. The data was collected using a pro forma and analyzed with SPSS version 22. RESULTS: Data from 148 patients was reviewed and analyzed. There were 78 males and 70 females. Only 5.8% of these children were delivered at the health institution. A fifth (20%) of the patients were first born of their mothers. The mean maternal age was 29 years. Few (10.1%) mothers use folate medication prior to conception and only 58% of the mothers use folate during antenatal care. Mean duration of pregnancy was 38 weeks. The most common anatomical site was lumbosacral region (74.3%) while the most common pathology was myelomeningocele 80.4%. Mean age at surgery was 88.68 h. Mean duration of surgery was 92.8 min. Mean follow-up duration was 46.8 weeks. As many as 59% of the patients had some neurologic improvement noticed during follow-up clinic visits. CONCLUSION: Spina bifida occurs frequently in our environment. Low socio-economic status and poor antenatal clinic visits contributes significantly to its occurrence. PMID- 29026990 TI - Are exon 19 deletions and L858R different in early stage lung adenocarcinoma? AB - INTRODUCTION: Evidence shows that exon 19 deletions (19del) and exon 21 Leu858Arg point mutation (L858R) of EGFR are different in response to EGFR tyrosine kinase inhibitor (EGFR-TKI) therapy in advanced lung cancers. However, the impact of the two mutational types in the early stage lung adenocarcinoma is unknown. METHODS: We enrolled consecutive patients with operable adenocarcinoma which harbored 19del or L858R to investigate the clinicopathologic characteristics and prognostic outcomes. RESULTS: Between 2008 and 2013, a total of 607 patients with 19del (47.9%) or L858R (52.1%) were included in this study. Clinicopathologic and disease-associated factors were well-balanced between 19del and L858R patients. Both recurrence-free survival (5-year RFS: 37.9% vs. 42.9%, p = 0.075) and overall survival (5-year OS: 64.7% vs. 60.7%, p = 0.741) were similar between the two groups. After relapse, 19del was associated with a better post-recurrence survival (PRS) than L858R (p = 0.016). Multivariate analysis demonstrated that mutational types (HR = 1.521, 95% CI: 1.106-2.093, p = 0.01) and tyrosine kinase inhibitors (TKI) use after recurrence (HR = 0.422, 95% CI: 0.301-0.592, p < 0.001) were independent predictors of PRS. The 19del and L858R patients were similar regarding recurrent patterns, except on pleural/chest wall metastasis (26.0% vs. 12.2%, p = 0.007). CONCLUSIONS: Patients with the early stage lung adenocarcinoma harboring either 19del or L858R share similar RFS and OS. After recurrence, both could benefit from TKI therapy without the need for a second biopsy, but 19del seemed to be associated with better PRS. PMID- 29026991 TI - Trichomonas vaginalis clinical isolates: cytoadherence and adherence to polystyrene, intrauterine device, and vaginal ring. AB - The parasitism by Trichomonas vaginalis is complex and in part is mediated by cytoadherence accomplished via five surface proteins named adhesins and a glycoconjugate called lipophosphoglycan (TvLPG). In this study, we evaluated the ability of T. vaginalis isolates to adhere to cells, plastic (polystyrene microplates), intrauterine device (IUD), and vaginal ring. Of 32 T. vaginalis isolates, 4 (12.5%) were strong adherent. The T. vaginalis isolates TV-LACM6 and TV-LACM14 (strong polystyrene-adherent) were also able to adhere to IUD and vaginal ring. Following chemical treatments, results demonstrated that the T. vaginalis components, lipophosphoglycan, cytoskeletal proteins, and surface molecules, were involved in both adherence to polystyrene and cytoadherence. The gene expression level from four adhesion proteins was highest in trophozoites adhered to cells than trophozoites adhered to the abiotic surface (polystyrene microplate). Our data indicate the major involvement of TvLPG in adherence to polystyrene, and that adhesins are important for cytoadherence. Furthermore, to our knowledge, this is the first report showing the T. vaginalis adherence to contraceptive devices, reaffirming its importance as pathogen among women in reproductive age. PMID- 29026992 TI - Acetabular reconstruction with the Kerboull-type plate at mid-term follow-up: survivorship analysis and prognostic factors for loosening. AB - INTRODUCTION: Successful reconstruction during total hip arthroplasty for acetabular bone defects remains challenging. The purpose of our study was to evaluate clinical and radiographic results and performed a survivorship analysis for patients with acetabular bone loss undergoing total hip arthroplasty (THA) or revision THA using Kerboull-type acetabular reinforcement device(KT plate). Additionally, some independent prognostic factors for radiographic failure were identified. METHODS: A retrospective cohort study was conducted. Thirty patients (36 hips) were available for follow-up examination between 1997 and 2012, with a mean follow-up period of 10 years. We evaluated clinical and radiographic results. The mean patient age at the time of the operation was 66 years. RESULTS: Failure occurred in 6 cases, and further revisions were required for 2 hips. With failure for any reason as an endpoint, the cumulative survival at 10 years was 85%. Survival analysis at 10 years with failure as the endpoint revealed that the inclination angle of the KT plate <= 45 degrees group showed higher survivorship than the inclination angle > 45 degrees group (95.8 vs. 63.6%, P = 0.0047). CONCLUSIONS: With a mean follow-up of 10 years, the clinical and radiographic outcomes were satisfactory. While this study group was small, the results suggest that prosthesis longevity may be improved by setting the inclination angle of this reinforcement device at <= 45 degrees . PMID- 29026994 TI - The role of phasic norepinephrine modulations during task switching: evidence for specific effects in parietal areas. AB - Cognitive flexibility is a major requirement for successful goal-directed behavior and their neurobiological underpinnings are becoming better understood. However, the role of the norepinephrine system during task switching is largely enigmatic, despite neurobiological considerations make it likely that the norepinephrine system likely plays an important role. Theoretical considerations also suggest that the norepinephrine system mainly modulates task-switching processes when these rely upon working memory mechanisms. This topic was examined in the current system neurophysiological study integrating event-related potential (ERP) with pupil diameter data as a proximate the norepinephrine system activity. Combined with source localization methods, human brain structure, brain function, and phasic modulations by an important neurobiological system were integrated. The results show that cognitive-neurophysiological subprocesses during the actual switching processes, reflected by the N2 and P3 ERP components, are not modulated by the norepinephrine system. Rather, this system modulates preparatory processes in the fore period of stimuli signaling possible switches of response sets. The source localization results show that this is achieved by modulating neural processes in the temporo-parietal junction (BA40). Importantly, these phasic modulatory effects of the norepinephrine system were only evident when working memory processes had to be used to guide the selection of the appropriate responses for task switching. PMID- 29026993 TI - Task intentions and their implementation into actions: cognitive control from adolescence to middle adulthood. AB - Cognitive control processes involved in human multitasking arise, mature, and decline across age. This study investigated how age modulates cognitive control at two different levels: the level of task intentions and the level of the implementation of intentions into the corresponding actions. We were particularly interested in specifying maturation of voluntary task choice (intentions) and task-switching execution (their implementations) between adolescence and middle adulthood. Seventy-four participants were assigned to one of the four age groups (adolescents, 12-17 years; emerging adults, 18-22 years; young adults, 23-27 years; middle-aged adults, 28-56 years). Participants chose between two simple cognitive tasks at the beginning of each trial before pressing a spacebar to indicate that the task choice was made. Next, a stimulus was presented in one of the three adjacent boxes, with participants identifying either the location or the shape of the stimulus, depending on their task choice. This voluntary task switching paradigm allowed us to investigate the intentional component (task choice) separately from its implementation (task execution). Although all participants showed a tendency to repeat tasks more often than switching between them, this repetition bias was significantly stronger in adolescents than in any adult group. Furthermore, participants generally responded slower after task switches than after task repetitions. This switch cost was similar across tasks in the two younger groups but larger for the shape than the location task in the two older groups. Together, our results demonstrate that both task intentions and their implementation into actions differ across age in quite specific ways. PMID- 29026997 TI - A systematic review of integrative clinical trials for supportive care in pediatric oncology: a report from the International Society of Pediatric Oncology, T&CM collaborative. AB - PURPOSE: Traditional and complementary medicine (T&CM) use in children with cancer is well established among high-income, upper middle-income, low-middle income, and low-income countries (HIC, UMIC, LMIC, LIC, respectively). In HIC, a developing body of evidence exists for several T&CM therapies; however, evidence in other income settings is less well described despite a significantly higher use when compared to reports from HIC. The aim of this systematic review was to evaluate the evidence for T&CM for a variety of supportive care indications among children with cancer. METHODS: We performed a systematic review following the PRISMA guidelines of randomized, controlled clinical trials from inception through September 2016. Our eligibility criteria were limited to T&CM studies performed in children and adolescents undergoing treatment for a pediatric malignancy. RESULTS: Of 6342 studies identified, 44 met inclusion criteria. Two clinical trials reported on acupuncture, 1 reported on aromatherapy, 9 evaluated massage therapy, and 32 reported on dietary supplements. Twenty-two studies were performed in HIC, 15 in UMIC, and 7 in LMIC. T&CM therapies were most commonly investigated for the prevention or management of mucositis, weight loss, and febrile neutropenia. Encouraging results were reported for select interventions; however, the majority of studies were classified as poor to fair quality. CONCLUSION: Our search revealed numerous clinical studies investigating the use of T&CM for supportive care purposes in pediatric oncology in HIC, UMIC, and LMIC. Although limited, these results could inform supportive care resource allocation and indicate where T&CM may serve to fill gaps where access to care may be limited. PMID- 29026995 TI - Cross-species prophylactic efficacy of Sm-p80-based vaccine and intracellular localization of Sm-p80/Sm-p80 ortholog proteins during development in Schistosoma mansoni, Schistosoma japonicum, and Schistosoma haematobium. AB - Schistosomiasis remains a major global health problem. Despite large-scale schistosomiasis control efforts, clear limitations such as possible emergence of drug resistance and reinfection rates highlight the need for an effective schistosomiasis vaccine. Schistosoma mansoni large subunit of calpain (Sm-p80) based vaccine formulations have shown remarkable efficacy in protecting against S. mansoni challenge infections in mice and baboons. In this study, we evaluated the cross-species protective efficacy of Sm-p80 vaccine against S. japonicum and S. haematobium challenge infections in rodent models. We also elucidated the expression of Sm-p80 and Sm-p80 ortholog proteins in different developmental stages of S. mansoni, S. haematobium, and S. japonicum. Immunization with Sm-p80 vaccine reduced worm burden by 46.75% against S. japonicum challenge infection in mice. DNA prime/protein boost (1 + 1 dose administered on a single day) resulted in 26.95% reduction in worm burden in S. haematobium-hamster infection/challenge model. A balanced Th1 (IFN-gamma, TNF-alpha, IL-2, and IL-12) and Th2 (IL-4, IgG1) type of responses were observed following vaccination in both S. japonicum and S. haematobium challenge trials and these are associated with the prophylactic efficacy of Sm-p80 vaccine. Immunohistochemistry demonstrated that Sm-p80/Sm-p80 ortholog proteins are expressed in different life cycle stages of the three major human species of schistosomes studied. The data presented in this study reinforce the potential of Sm-p80-based vaccine for both hepatic/intestinal and urogenital schistosomiasis occurring in different geographical areas of the world. Differential expression of Sm-p80/Sm-p80 protein orthologs in different life cycle makes this vaccine potentially useful in targeting different levels of infection, disease, and transmission. PMID- 29026996 TI - Does personality influence learning? A case study in an invasive lizard. AB - Learning is a change in state resulting from new experiences enabling behavioural responses to be adjusted in alignment with external cues. Individuals differ in the speed and accuracy at which they learn. Personality has been postulated as being a major influence on learning ability in terms of attention and encounter rates of environmental cues. This link forms the basis of the cognitive style hypothesis (CSH), predicting that an individual's cognitive style will occur along a fast-slow behavioural gradient. Fast types are characterised as being active, neophilic, and bold individuals who sample their environment rapidly, yet superficially, enabling learning to occur at a higher speed, but at the cost of accuracy. Slow types have the opposite suite of personality traits resulting in them being more accurate flexible learners. Greater level of learning flexibility is thought to help promote invasions success. Here, we test the predictions of the CSH in an invasive lizard (Lampropholis delicata) to determine if personality dictates learning performance in a two-phase associative task. Results indicated that the delicate skink was capable of learning an associative task but only provided partial support for the CSH. Personality was found to influence learning accuracy, however, the direction of that relationship was opposite to that predicted. Instead, fast lizards made fewer mistakes when learning to associate a colour to a goal. These findings highlight the need to further investigate the CSH across taxa and consider its potential as an underlying mechanism of the invasion process. PMID- 29026998 TI - Acetolactate synthase (AlsS) in Bacillus licheniformis WX-02: enzymatic properties and efficient functions for acetoin/butanediol and L-valine biosynthesis. AB - Acetolactate synthase catalyzes two molecules of pyruvates to form alpha acetolactate, which is further converted to acetoin and 2,3-butanediol. In this study, by heterologous expression in Escherichia coli, the enzymatic properties of acetolactate synthase (AlsS) from Bacillus licheniformis WX-02 were characterized. Its K m and k cat for pyruvate were 3.96 mM and 514/s, respectively. It has the optimal activity at pH 6.5, 37 degrees C and was feedback inhibited by L-valine, L-leucine and L-isoleucine. Furthermore, the alsS deficient strain could not produce acetoin, 2,3-butanediol, and L-valine, while the complementary strain was able to restore these capacities. The alsS overexpressing strain produced higher amounts of acetoin/2,3-butanediol (57.06 g/L) and L-valine (2.68 mM), which were 10.90 and 92.80% higher than those of the control strain, respectively. This is the first report regarding the in-depth understanding of AlsS enzymatic properties and its functions in B. licheniformis, and overexpression of AlsS can effectively improve acetoin/2,3-butanediol and L valine production in B. licheniformis. We envision that this AlsS can also be applied in the improvement of acetoin/2,3-butanediol and L-valine production in other microbes. PMID- 29026999 TI - Identification of a novel vitivirus from grapevines in New Zealand. AB - We report a sequence of a novel vitivirus from Vitis vinifera obtained using two high-throughput sequencing (HTS) strategies on RNA. The initial discovery from small-RNA sequencing was confirmed by HTS of the total RNA and Sanger sequencing. The new virus has a genome structure similar to the one reported for other vitiviruses, with five open reading frames (ORFs) coding for the conserved domains described for members of that genus. Phylogenetic analysis of the complete genome sequence confirmed its affiliation to the genus Vitivirus, with the closest described viruses being grapevine virus E (GVE) and Agave tequilana leaf virus (ATLV). However, the virus we report is distinct and shares only 51% amino acid sequence identity with GVE in the replicase polyprotein and 66.8% amino acid sequence identity with ATLV in the coat protein. This is well below the threshold determined by the ICTV for species demarcation, and we propose that this virus represents a new species. It is provisionally named "grapevine virus G". PMID- 29027000 TI - Occupational exposure to perfluoroalkyl substances and serum levels of perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) in an aging population from upstate New York: a retrospective cohort study. AB - PURPOSE: Perfluoroalkyl substances (PFASs) are environmentally persistent amphiphilic compounds. Exposure to two PFASs, perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) is linked to specific occupations and industries. This study examines the contribution of past occupational PFAS exposure to serum PFOS and PFOA levels among 154 older adults in New York State. METHODS: Serum PFOS and PFOA levels were compared to data from the National Health and Nutrition Examination Survey (NHANES). Potential occupational exposure to any PFAS was determined from work histories, reviewed by an industrial hygienist, and assessed in relation to current serum PFOS and PFOA levels using exposure probability, duration and cumulative exposure. RESULTS: We observed 25% higher serum PFOS and 80% higher PFOA levels in study participants compared to NHANES. No participants reported PFAS chemical manufacturing work, but n = 68 reported work in occupations and industries known to use PFASs. We found that participants with high cumulative workplace exposure had 34% higher serum PFOS levels compared to participants without occupational exposure, adjusted for age, sex and income. Serum PFOS levels were 26% higher for participants with longer occupational exposure durations. The probability of occupational PFAS exposure metric was not associated with serum PFOS. Serum PFOA was not associated with any measure of occupational exposure. CONCLUSION: Occupational exposure may contribute to total PFOS body burden in this study population, even among workers not directly involved in manufacturing PFASs. PFAS exposure assessments should evaluate the workplace as a potential source, even when workplace exposures are assumed to be low or moderate. PMID- 29027001 TI - Cancer incidence in urban, rural, and densely populated districts close to core cities in Bavaria, Germany. AB - OBJECTIVE: An ecologic study on the level of districts was performed to evaluate the possible association between district type and risk of cancer in Bavaria, Southern Germany. METHODS: Cancer incidence data for the years 2003-2012 were obtained from the population-based cancer registry Bavaria according to sex and cancer site. Data on district type, socio-economic area deprivation, particulate matter exposure, tobacco consumption, and alcohol consumption were obtained from publicly available sources. The possible association between district type and cancer risk adjusted for age, socio-economic area deprivation, particulate matter exposure, tobacco consumption, and alcohol consumption was evaluated using multivariable multi-level negative binomial regression. RESULTS: We found a significantly reduced cancer risk in densely populated districts close to core cities and/or rural districts compared to core cities with respect to the cancer sites mouth and pharynx (women only), liver (both sexes), larynx (both sexes), lung (both sexes), melanoma of the skin (both sexes), mesothelioma (men only), connective and soft tissue (both sexes), corpus uteri, other urinary tract (men only), urinary bladder (both sexes), and non-Hodgkin lymphoma (both sexes). CONCLUSION: Our findings require further monitoring. Since the apparently increased cancer risk in core cities may be related to lifestyle factors, preventive measures against lifestyle-related cancer could be specifically targeted at populations in deprived core cities. PMID- 29027003 TI - Explaining long-term inter-individual growth variation in plant populations: persistence of abiotic factors matters. AB - An unanswered question in ecology is whether the environmental factors driving short-term performance also determine the often observed long-term performance differences among individuals. Here, we analyze the extent to which temporal persistence of spatial heterogeneity in environmental factors can contribute to long-term inter-individual variation in stem length growth. For a natural population of a long-lived understorey palm, we first quantified the effect of several environmental factors on stem length growth and survival. We then performed individual-based simulations of growth trajectories, in which we varied, for two environmental factors: (1) the strength of the effect on stem length growth and (2) the temporal persistence. Short-term variation in stem length growth was strongly driven by light availability. Auto-correlation in light availability and soil pH increased simulated variation in stem length growth among 20-year-old palms to levels similar to the observed variation. Analyses in which we varied both the strength of the effect on stem length growth and the temporal persistence of the environmental factors revealed that a large fraction of observed long-term growth differences can be explained, as long as one of these effects is strong. This implies that environmental factors that are relatively unimportant for short-term performance can still drive long-term performance differences when the environmental variation is sufficiently persistent over time. PMID- 29027002 TI - Camel molar tooth enamel response to gamma rays using EPR spectroscopy. AB - Tooth enamel samples from molar teeth of camel were prepared using a combined procedure of mechanical and chemical tooth treatment. Based on electron paramagnetic resonance (EPR) spectroscopy, the dose response of tooth enamel samples was examined and compared to that of human enamel. The EPR dose response of the tooth enamel samples was obtained through irradiation to gamma doses from 1 Gy up to 100 kGy. It was found that the radiation-induced EPR signal increased linearly with gamma dose for all studied tooth enamel samples, up to about 15 kGy. At higher doses, the dose response curve leveled off. The results revealed that the location of the native signal of camel tooth enamel was similar to that of enamel from human molars at 2.00644, but different from that of enamel from cows and goats. In addition, the peak-to-peak width (DeltaH pp) for human and camel molar teeth was similar. It was also found that the response of camel enamel to gamma radiation was 36% lower than that of human enamel. In conclusion, the results indicate the suitability of camel teeth for retrospective gamma dosimetry. PMID- 29027004 TI - Blood lymphocyte subsets identify optimal responders to IFN-beta in MS. AB - Response to interferon-beta (IFN-beta) treatment is heterogeneous in multiple sclerosis (MS). We aimed to search for biomarkers predicting no evidence of disease activity (NEDA) status upon IFN-beta treatment in MS. 119 patients with relapsing-remitting MS (RRMS) initiating IFN-beta treatment were included in the study, and followed prospectively for 2 years. Neutralizing antibodies (NAb) were explored in serum samples obtained after 6 and 12 months of IFN-beta treatment. Soluble cytokines and blood lymphocytes were studied in basal samples by ELISA and flow cytometry, respectively. 9% of patients developed NAb. These antibodies were more frequent in patients receiving IFN-beta 1b than in those treated subcutaneous (p = 0.008) or intramuscular (p < 0.0001) IFN-beta 1a. No patient showing NAb remained NEDA during follow-up. Basal immunological variables are also associated with patient response. Percentages below 3% of CD19 + CD5 + cells (AUC 0.74, CI 0.63-0.84; OR 10.68, CI 3.55-32.15, p < 0.0001; Likelihood ratio 4.28) or above 2.6% of CD8 + perforin + T cells (AUC 0.79, CI 0.63-0.96; OR 6.11, CI 2.0-18.6, p = 0.0009; Likelihood ratio 5.47) increased the probability of achieving NEDA status during treatment. Basal blood immune cell subsets contribute to identify MS patients with a high probability of showing an optimal response to IFN-beta. PMID- 29027005 TI - Utility of the revised Edmonton Symptom Assessment System (ESAS-r) and the Patient-Reported Functional Status (PRFS) in lung cancer patients. AB - BACKGROUND: Symptom palliation is an important objective of treatment in advanced/metastatic lung cancer (LC). Significant psychological, minor physical symptoms and several social/emotional issues often go unnoticed. This prospective study aimed to evaluate utility of patients' perspectives [self-reported symptom assessment by revised Edmonton Symptom Assessment System (ESAS-r) and self reported functional status by Patient-Reported Functional Status (PRFS)] amongst LC patients undergoing chemotherapy. METHODS: Consecutive newly diagnosed treatment-naive LC patients attending a tertiary referral center in North India from January 2014 to March 2015 were included. All patients received standard histology-guided platinum-doublet chemotherapy. ESAS-r and PRFS questionnaires were administered under guidance, once at the time of initial assessment/diagnosis, repeated at start of chemotherapy, before C4, and after completion of chemotherapy (end of chemotherapy (EOCTx)). Functional Assessment of Cancer Therapy-Lung (FACT-L) questionnaire was also administered. Baseline and post-treatment scores were compared. RESULTS: Majority of 133 patients enrolled were males (86.5%,n = 115), were current/ex-smokers (81.2%, n = 108), had advanced stage [IIIB = 30.1% (n = 40), IV = 52.6% (n = 70)], and were of non small-cell type (NSCLC;84.2%,n = 112). On baseline ESAS-r, the highest mean symptom scores were observed for tiredness followed by anorexia. Mean ESAS-r scores before C4 as well as at EOCTX were significantly better than baseline ESAS r scores in all its components except nausea. Similarly, PRFS before C4 and EOCTx was significantly improved compared to baseline. However, Karnofsky Performance Scale (KPS) and Eastern Cooperative Oncology Group Performance Status assessed at baseline did not show significant improvement at treatment completion. FACT-L score at EOCTx showed significant improvement from baseline in physical and functional well-being domains but not for social/family and emotional well-being domains. CONCLUSION: This study validated utility of ESAS-r and PRFS in Indian LC patients. These instruments should be used in routine clinical practice besides physicians' assessment of PS (KPS/ECOG). PMID- 29027007 TI - Lumbosacral stress and age may contribute to increased pelvic incidence: an analysis of 1625 adults. AB - PURPOSE: While there is a consensus that pelvic incidence (PI) remains constant after skeletal maturity, recent reports argue that PI increases after 60 years. This study aims to investigate whether PI increases with age and to determine potential associated factors. METHODS: 1510 patients with various spinal degenerative and deformity pathologies were enrolled, along with an additional 115 asymptomatic volunteers. Subjects were divided into six age subgroups with 10 year intervals. RESULTS: PI averaged 54.1 degrees in all patients. PI was significantly higher in the 45-54-year age group than 35-44-year age group (55.8 degrees vs. 49.7 degrees ). There were significant PI differences between genders after age 45. Linear regression revealed age, gender and malalignment as associated factors for increased PI with R 2 of 0.22 (p < 0.001). CONCLUSIONS: PI is higher in female patients and in older patients, especially those over 45 years old. Spinal malalignment also may have a role in increased PI due to increased L5-S1 bending moment. PMID- 29027006 TI - Comparative outcomes of combined corticosteroid with low volume compared to high volume of local anesthetic in subacromial injection for impingement syndrome: systematic review and meta-analysis of RCTs. AB - Subacromial impingement syndrome (SIS) is one of the most frequent pathologies of the shoulder, which may cause serious restriction of daily activities and lifestyle changes. Corticosteroid injection (CI) into the subacromial space is a palliative treatment option. Currently, there have been no studies that compare between the different volumes of CI injection. We have conducted a systematic review and meta-analysis to answer our specific study questions: Are high volume (< 5 ml) better than low volume (>= 5 ml) of CI injection with respect to pain reduction? This systematic review was conducted according to the preferred reporting items for systematic reviews and meta-analyses guidelines. Relevant studies were identified from Medline and Scopus from inception to May 11, 2017 that reported American shoulder and elbow surgeons (ASES) function score, pain visual analog score (VAS), and postoperative complications of either group. Fifteen studies were included for the analysis of high volume (more than or equal 5 ml), and 5 studies were included for analysis of low volume (less than 5 ml). Overall, there were 1101 patients (732 in the high-volume group and 369 in the low-volume group). A pooling of mean VAS and ASES function score was (N = 557) 2.02 (95% CI 1.52, 2.53), (N = 190) 82.59 (95% CI 76.92, 88.27) in high-volume group and (N = 179) 2.60 (95% CI 1.94, 3.26), (N = 95) 84.65 (95% CI 81.64, 86.82) in low-volume group, respectively. The unstandardized mean difference of ASES and VAS of high volume was - 0.58 (95% confidence interval (CI): - 1.38, 0.22) and - 2.06 (95% CI - 8.35, 4.23) scores lower than low-volume CI in SIS patients, but without statistical significance. A total of 11 studies in the high volume group and 4 studies in the low-volume group reported adverse effects. The total complication rate per patient was 6.2% (2.3, 10.1%) in the high-volume group and 11.7% (0.3, 12%) in the low-volume group (p = 0.091). No significant differences were noted for complications. In subacromial impingement syndrome, the corticosteroid injection had acceptable pain and functional outcomes. Higher volume had a lower ASES, VAS, and risk of having complication when compared to lower volume. However, there are no statistically significant differences between groups. Larger, randomized noninferiority or equivalent trial studies are needed to confirm these findings as the current literature is still insufficient. Level of evidence I. PMID- 29027008 TI - Lateral epicondylitis: Associations of MR imaging and clinical assessments with treatment options in patients receiving conservative and arthroscopic managements. AB - OBJECTIVES: We assessed the implications of MR imaging with clinical history in lateral epicondylitis management by evaluating imaging and clinical features in patients with lateral epicondylitis treated conservatively or operatively. METHODS: Sixty patients with lateral epicondylitis treated conservatively (n = 38) or operatively (n = 22) from 2011-2015 were included. MR imaging findings of common extensor tendon (CET), lateral collateral ligament (LCL) complex, muscle oedema, ulnar nerve and elbow joint were reviewed. Clinical data recorded were frequency, duration and intensity of pain, history of trauma and injection therapy, range of motion. RESULTS: MRI-assessed CET and LCL complex abnormalities, muscle oedema, radiocapitellar joint widening, joint effusion/synovitis, pain frequency and intensity differed significantly between the two groups (p < .05) with increased severity in operative group. Persistent pain (OR 12.2, p < .01), CET abnormality on longitudinal plane (OR 7.5, p = .03 for grade 2; OR 22.4, p < .01 for grade 3) and muscle oedema (OR 6.7, p = .03) were major factors associated with operative treatment. Area under the ROC curve of predicted probabilities for combination of these factors was 0.83. CONCLUSION: MR imaging, combined with clinical assessment, could facilitate appropriate management planning for patients with lateral epicondylitis. KEY POINTS: * MRI can reflect different disease severity between patients treated conservatively/operatively. * CET abnormality, muscle oedema were major MRI findings with operative treatment. * Patients in operative group were more likely to experience persistent pain. * MRI plus clinical symptoms could facilitate appropriate management for lateral epicondylitis. PMID- 29027009 TI - Lipid-lowering agent-triggered dermatomyositis and polymyositis: a case series and literature review. AB - Lipid-lowering agent-triggered dermatomyositis (DM) or polymyositis (PM) is a rare event. Therefore, the aim of the present study was to describe a series of such cases. A retrospective cohort study of 5 DM and 4 PM cases triggered by prior exposure to lipid-lowering agents between 2001 and 2017 was carried out. All patients, except for two cases, had muscle biopsy compatible with inflammatory myopathy and no serum autoantibodies positive for anti-SRP or anti HMGCoAR. Median age of the patients at time of diagnosis was 68 years. Seven patients had previously taken simvastatin 20 mg/day (exposure period from 2 days to 4 years) and two bezafibrate 100 mg/day (3-4 months). Median time from symptom onset to disease diagnosis was 6 months. All patients with DM had a heliotrope and/or Gottron's papules. All patients had symmetrical, predominantly proximal muscle weakness of limbs, with median serum creatine phosphokinase of 3087U/L (interquartile 25-75% range 1293-13,937 U/L). All patients received glucocorticoid and immunosuppressants. Complete reversal of clinical symptoms and normalization of serum creatine phosphokinase level occurred within a median of 12 months after starting the treatment. There was disease relapse in three cases, and one case of death was unrelated to the disease (pulmonary infectious complications resulting from lymphoma). In contrast to cases described in the literature, the patients in the present study had a relatively more aggressive course, requiring glucocorticoids and immunosuppressants, in addition to a tendency for a longer period to achieve disease remission. PMID- 29027010 TI - Oxidized regenerated cellulose induces pleural thickening in patients with pneumothorax: possible involvement of the mesothelial-mesenchymal transition. AB - PURPOSE: The pleural covering technique, i.e., wrapping a part of or the entire surface of the lung with oxidized regenerative cellulose (ORC), reinforces visceral pleura through pleural thickening for patients with pneumothorax and cystic lung diseases. However, it remains undetermined how ORC induces pleural thickening. METHODS: A histopathological examination was performed for lung specimens from patients who had recurrent pneumothoraces after pleural covering and re-operation (n = 5). To evaluate the influence of ORC on the pleura in vitro, we used MeT-5A cells (a human pleural mesothelial cell line). RESULTS: Pleural thickening was confirmed in all lung specimens examined. Three months after covering, the thickened pleura showed inflammatory cell infiltration, proliferation of myofibroblasts, and expression of fibronectin and TGF-beta. However, after 1 year, those findings virtually disappeared, and the thickened pleura was composed mainly of abundant collagen. When MeT-5A cells were cultured in ORC-immersed medium, their morphology changed from a cobblestone to spindle shaped appearance. The expression of E-cadherin decreased, whereas that of N cadherin, alpha-smooth muscle actin, and fibronectin increased, suggesting mesothelial-mesenchymal transition (Meso-MT). CONCLUSIONS: Our results suggest that Meso-MT may be involved as a mechanism of pleural thickening induced by pleural covering with ORC. PMID- 29027012 TI - Causes of death, survival and risk factors of mortality in Thai patients with early systemic sclerosis: inception cohort study. AB - Inception cohort study regarding the causes of death and risk factors for mortality in patients with early systemic sclerosis (SSc), especially diffuse SSc (dcSSc) has not been well elucidated. Therefore, the aim of our study was to determine the causes of death, survival rates, and risk factors for mortality in Thai patients with early SSc of whom the majority belonged to the dcSSc subset. We used an inception cohort of early-SSc patients seen between January 2010 and August 2014. All patients were evaluated for clinical and laboratory data at the study entry and then every 6 months. A total of 115 patients (68 female, 91 dcSSc) were enrolled. The mean +/- SD age at onset, duration of disease, and duration of follow-up were 52.5 +/- 8.5 years, 12.3 +/- 9.2 months, and 27.5 +/- 16.4 months, respectively. During the follow-up, 11(9.6%) SSc patients died. The mortality rate was 4.17 per 100 person-years (95% CI 2.31, 7.53). The leading cause of SSc-related death was dilated cardiomyopathy (27.2%). Infection was the most common cause of non-SSc-related death (18.2%). Survival rates at 1, 2, 3, and 4 years after the study entry were 93, 91, 88, and 88%, respectively. In the multivariate Cox regression analysis, ESR >= 40 mm/h [HR 8.65 (95% CI 1.66,45.17)], hemoglobin < 10 mg/dL [HR 4.57 (95% CI 1.14,18.34)], and mRSS [HR 1.09 (95% CI 1.03,1.15)] were independent risk factors for mortality. Our data suggest that dilated cardiomyopathy was the most common SSc-related cause of death in Thai patients with early SSc, of whom majority was dcSSc subset. Elevated ESR, anemia, and increased mRSS predicted poor outcome. PMID- 29027013 TI - A systematic review of maternal antidepressant use in pregnancy and short- and long-term offspring's outcomes. AB - The relative safety of antidepressants during pregnancy has received substantial attention, but most syntheses fail to account for mental illness effects. We aimed to evaluate the literature comparing low birth weight (LBW) and neurodevelopmental and neurobehavioural outcomes for children whose mothers took antidepressants in pregnancy compared to those whose mothers had common mental disorders, or symptoms, but who did not take antidepressants during pregnancy. A systematic review was conducted searching PubMed, MEDLINE, PsycINFO and Embase in January 2015. A modified version of the Newcastle Ottawa Scale was used to assess study quality. Eleven cohort studies were included: four reporting a LBW outcome (all with higher risk of bias) and seven reporting a neurodevelopmental outcome (five with higher risk of bias). We found only limited evidence of gestational age-adjusted LBW in exposed children in two studies which had a higher risk of bias and did not control for depressive symptom severity. Only five (7.5%) neurodevelopmental outcomes and one (12.5%) neurobehavioural outcome showed evidence of a statistically significant effect, three out of four were from studies with a higher risk of bias. There is little robust evidence indicating a detrimental effect of antidepressant use during pregnancy on LBW and neurodevelopmental and neurobehavioural outcomes. More rigorous study designs are needed. PMID- 29027014 TI - Proton-beam therapy or photon-beam radiosurgery for WHO grade I meningiomas? PMID- 29027015 TI - Cerebral microdialysis in TBI-limitations and possibilities. PMID- 29027016 TI - Impact of flow shear stress on morphology of osteoblast-like IDG-SW3 cells. AB - This study constructed an in situ cell culture, real-time observation system based originally on a microfluidic channel, and reported the morphological changes of late osteoblast-like IDG-SW3 cells in response to flow shear stress (FSS). The effects of high (1.2 Pa) and low (0.3 Pa) magnitudes of unidirectional FSS and three concentrations of extracellular Type I collagen (0.1, 0.5, and 1 mg/mL) coating on cell morphology were investigated. IDG-SW3 cells were cultured in polydimethylsiloxane microfluidic channels. Cell images were recorded real time under microscope at intervals of 1 min. Cell morphology was characterized by five parameters: cellular area, cell elongation index, cellular alignment, cellular process length, and number of cellular process per cell. Immunofluorescence assay was used to detect stress fiber distribution and vinculin expression. The results showed that 1.2 Pa, but not 0.3 Pa of FSS induced a significant morphological change in late osteoblast-like IDG-SW3 cells, which may be caused by the alteration of cellular adhesion with matrix in response to FSS. Moreover, the amount of collagen matrix, alignment of fiber stress and expression of vinculin were closely correlated with the morphological changes of IDG-SW3 cells. This study suggests that osteoblasts are very responsive to the magnitudes of FSS, and extracellular collagen matrix and focal adhesion are directly involved in the morphological changes adaptive to FSS. PMID- 29027017 TI - Palladium bionanoparticles production from acidic Pd(II) solutions and spent catalyst leachate using acidophilic Fe(III)-reducing bacteria. AB - The acidophilic, Fe(III)-reducing heterotrophic bacteria Acidocella aromatica PFBCT and Acidiphilium cryptum SJH were utilized to produce palladium (Pd) bionanoparticles via a simple 1-step microbiological reaction. Monosaccharide (or intracellular NADH)-dependent reactions lead to visualization of intra/extra cellular enzymatic Pd(0) nucleation. Formic acid-dependent reactions proceeded via the first slow Pd(0) nucleation phase and the following autocatalytic Pd(II) reduction phase regardless of the presence or viability of the cells. However, use of active cells (with full enzymatic and membrane protein activities) at low formic acid concentration (5 mM) was critical to allow sufficient time for Pd(II) biosorption and the following enzymatic Pd(0) nucleation, which consequently enabled production of fine, dense and well-dispersed Pd(0) bionanoparticles. Differences of the resultant Pd(0) nanoparticles in size, density and localization between the two bacteria under each condition tested suggested different activity and location of enzymes and membrane "Pd(II) trafficking" proteins responsible for Pd(0) nucleation. Despite the inhibitory effect of leaching lixiviant and dissolved metal ions, Pd(0) bionanoparticles were effectively formed by active Ac. aromatica cells from both acidic synthetic Pd(II) solutions and from the actual spent catalyst leachates at equivalent 18-19 nm median size with comparable catalytic activity. PMID- 29027018 TI - Accelerated growth of hemangioblastoma in pregnancy: the role of proangiogenic factors and upregulation of hypoxia-inducible factor (HIF) in a non-oxygen dependent pathway. AB - Hemangioblastomas (HBs) are benign, highly vascular tumors, often characterized by loss of function of the von Hippel-Lindau (vHL) gene. They are the most common central nervous system tumor observed in vHL syndrome. Loss of function of the vHL gene creates a "pseudo-hypoxic" state, causing overactivation of hypoxia inducible factor (HIF) and vascular endothelial growth factor (VEGF)-related pathways. In some cases, HBs can rapidly increase in size during pregnancy to then present acutely, which most frequently occurs after the 20th gestational week. These changes in size usually occur from enlargement of the cystic component of the HB. Due to their preferred location in the posterior fossa near critical structures as well as along the spinal cord, such cases can present with severe neurological deficits, requiring urgent surgical intervention in a multidisciplinary setting. However, the reasons for this acute flare-up during pregnancy remain poorly understood, as are the reasons why this occurs in only a subset of tumors. Unveiling the etiology for this clinical scenario can affect the treatment of HBs, as it will contribute to the understanding of the pathophysiology of such a transformation from a quiescent lesion to a symptomatic one, not only in the setting of pregnancy. Identifying the correct triggers and the conditions initiating and mediating this switch will enable us to develop preventive medications which should allow us to keep the tumor in its quiescent phase. In this pathophysiological review, we investigate the association between HB growth and pregnancy based on an analysis > 40 such published cases. We suggest that the proangiogenic state of pregnancy is the leading etiology for this striking association, and to support the argument, we discuss its potential impact on HIF overexpression in a non-hypoxic manner through activation of the PI3K/Akt/mTOR pathway by proangiogenic factors. Specifically, we discuss the involvement of placental growth factor (PlGF) and its receptor vascular endothelial growth factor receptor 1 (VEGFR-1) in various pathologic processes that can lead to the formation and growth of peritumoral edema and cysts, which are the primary causes for the development of any symptoms in HB. Both PlGF and VEGFR-1 are expressed at increased levels during pregnancy, and both have been reported as part of various pathological processes, including angiogenesis and tumorigenesis. The unique feature that both do essentially not show any significant negative impact on regular physiological processes makes them attractive therapeutic targets since very little side effects are expected. Further research into the effects of anti-PlGF or anti-VEGFR-1 therapy in HB is therefore recommended. PMID- 29027011 TI - Let's make microglia great again in neurodegenerative disorders. AB - All of the common neurodegenerative disorders-Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis and prion diseases-are characterized by accumulation of misfolded proteins that trigger activation of microglia; brain resident mononuclear phagocytes. This chronic form of neuroinflammation is earmarked by increased release of myriad cytokines and chemokines in patient brains and biofluids. Microglial phagocytosis is compromised early in the disease process, obfuscating clearance of abnormal proteins. This review identifies immune pathologies shared by the major neurodegenerative disorders. The overarching concept is that aberrant innate immune pathways can be targeted for return to homeostasis in hopes of coaxing microglia into clearing neurotoxic misfolded proteins. PMID- 29027019 TI - Explorative results from multistep screening for potential genetic risk loci of Alzheimer's disease in the longitudinal VITA study cohort. AB - Alzheimer's disease (AD) is a neurodegenerative disorder that preferentially affects individuals of advanced age. Heritability estimates for AD range between 60 and 80%, but only few genetic risk factors have been identified so far. In the present explorative study, we aimed at characterizing the genetic contribution to late-onset AD in participants of the Vienna Transdanube Aging (VITA) longitudinal birth cohort study in a two-step approach. First, we performed a genome-wide screen of pooled DNA samples (n = 588) to identify allele frequency differences between AD patients and non-AD individuals using life-time diagnoses made at the age of 80 (t = 60 months). This analysis suggested a high proportion of brain expressed genes required for cell adhesion, cell signaling and cell morphogenesis, and also scored in known AD risk genes. In a second step, we confirmed associations using individual genotypes of top-ranked markers examining AD diagnoses as well as the dimensional scores: FULD and MMSE determined up to the age of 82.5 (t = 90 months). Taken together, our study proposes genes ANKS1B, ENST00000414107, LOC100505811, SLC22A14, QRFPR, ZDHHC8P1, ADAMTS3 and PPFIA1 as possible new candidates involved in the etiology of late-onset AD, with further research being needed to clarify their exact roles. PMID- 29027020 TI - Analysis of Ca2+ response of osteocyte network by three-dimensional time-lapse imaging in living bone. AB - Osteocytes form a three-dimensional (3D) cellular network within the mineralized bone matrix. The cellular network has important roles in mechanosensation and mechanotransduction related to bone homeostasis. We visualized the embedded osteocyte network in chick calvariae and observed the flow-induced Ca2+ signaling in osteocytes using 3D time-lapse imaging. In response to the flow, intracellular Ca2+ ([Ca2+]i) significantly increased in developmentally mature osteocytes in comparison with young osteocytes in the bone matrix. To investigate the differences in response between young and developmentally mature osteocytes in detail, we evaluated the expression of osteocyte-related genes using the osteocyte-like cell line MLO-Y4, which was 3D-cultured within type I collagen gels. We found that the c-Fos, Cx43, Panx3, Col1a1, and OCN mRNA levels significantly increased on day 15 in comparison with day 7. These findings indicate that developmentally mature osteocytes are more responsive to mechanical stress than young osteocytes and have important functions in bone formation and remodeling. PMID- 29027021 TI - Bortezomib prevents ovariectomy-induced osteoporosis in mice by inhibiting osteoclast differentiation. AB - Bone homeostasis is achieved through coordinated activities of bone-forming osteoblasts and bone-resorbing osteoclasts. When the balance is skewed in favor of osteoclasts due to hormonal or inflammatory issues, pathologic bone loss occurs leading to conditions such as osteoporosis, rheumatoid arthritis, and periodontitis. Bortezomib is the first in-class of proteasome inhibitors used as an anti-myeloma agent. In the present study, we show that bortezomib directly inhibited the receptor activator of nuclear factor kappaB ligand (RANKL) dependent osteoclast differentiation of mouse bone marrow macrophages. Bortezomib significantly reduced the induction of osteoclast marker genes and proteins including nuclear factor of activated T-cells, cytoplasmic 1 (NFATc1). The intraperitoneal injection of bortezomib reduced ovariectomy-induced osteoclastogenesis and protected the mice from bone loss. These data propose novel use of bortezomib as a potential anti-resorptive agent. PMID- 29027022 TI - An eFTD-VP framework for efficiently generating patient-specific anatomically detailed facial soft tissue FE mesh for craniomaxillofacial surgery simulation. AB - Accurate surgical planning and prediction of craniomaxillofacial surgery outcome requires simulation of soft tissue changes following osteotomy. This can only be achieved by using an anatomically detailed facial soft tissue model. The current state-of-the-art of model generation is not appropriate to clinical applications due to the time-intensive nature of manual segmentation and volumetric mesh generation. The conventional patient-specific finite element (FE) mesh generation methods are to deform a template FE mesh to match the shape of a patient based on registration. However, these methods commonly produce element distortion. Additionally, the mesh density for patients depends on that of the template model. It could not be adjusted to conduct mesh density sensitivity analysis. In this study, we propose a new framework of patient-specific facial soft tissue FE mesh generation. The goal of the developed method is to efficiently generate a high-quality patient-specific hexahedral FE mesh with adjustable mesh density while preserving the accuracy in anatomical structure correspondence. Our FE mesh is generated by eFace template deformation followed by volumetric parametrization. First, the patient-specific anatomically detailed facial soft tissue model (including skin, mucosa, and muscles) is generated by deforming an eFace template model. The adaptation of the eFace template model is achieved by using a hybrid landmark-based morphing and dense surface fitting approach followed by a thin-plate spline interpolation. Then, high-quality hexahedral mesh is constructed by using volumetric parameterization. The user can control the resolution of hexahedron mesh to best reflect clinicians' need. Our approach was validated using 30 patient models and 4 visible human datasets. The generated patient-specific FE mesh showed high surface matching accuracy, element quality, and internal structure matching accuracy. They can be directly and effectively used for clinical simulation of facial soft tissue change. PMID- 29027023 TI - How we do it: repair of large perineal hernia after abdominoperineal resection. AB - BACKGROUND: Symptomatic perineal hernia is a rare complication after abdominoperineal resection (APR). Management of these hernias is challenging. The recurrence rate after surgical repair is high because of the difficulty of prosthetic material fixation; there is no consensus regarding the best method of repair. METHODS: We introduced a novel combined laparoscopic-perineal dual fixation technique in the repair of perineal hernias after APR. This technique begins with a perineal approach under laparoscopic vision. After excision of the hernia sac, the mesh is introduced and fixed anteriorly to the urogenital diaphragm and laterally to the sacrotuberous ligament and the surrounding scar tissue. The perineal incision is then closed. Next, the mesh is fixed to the sacrum with ProTack(r) and is fixed again to the sacrotuberous ligament via a laparoscopic approach. RESULTS: The dual fixation repair method is successful and without difficulties, with no recurrence at 13-month follow-up. CONCLUSION: Our laparoscopic-perineal dual fixation method is a good alternative method for large perineal hernia repair after APR. PMID- 29027024 TI - Studies on the constituents of Helleborus purpurascens: analysis and biological activity of the aqueous and organic extracts. AB - In Southeast Europe, the ethnomedicinal use of Helleborus species has a very long tradition. Cardiac steroids (Hellebrin), cysteine-rich proteins (Hellethionins) and several steroidal saponins have been identified in these plants. Aim of the present work was to investigate the amino acid composition of native extracts from the root and rootstock of Helleborus purpurascens. The amino acids have been identified by the GC-MS technique on the previously derivatised (Phenomenex Faast Kit) extract samples by comparison with the mass spectra and retention-time of the standards. A remarkable finding was a relatively intensive peak attributed to the non-proteinogenic Pipecolic acid (Pic). A cyclisation of the derivatised glutamine was observed during the GC measurement and a mechanistic pathway is described. Samples of the extract and of some isolated fractions have also been tested on; altogether 12 cancer cell lines aimed to identify further potentially cytostatic components which should be less toxic than Hellebrin. The finding of one Hellebrin-free fraction (IC50 = 0.007 mg/L) with higher cytotoxicity than Hellebrin (IC50 = 0.008 mg/L) is remarkable. PMID- 29027025 TI - Spontaneous integration of temporal information: implications for representational/computational capacity of animals. AB - How do animals adapt their behaviors to changing conditions? This question relates to the debate between associative versus representational/computational approaches in cognitive science. An influential line of research that has significantly shaped the conceptual development of animal learning over decades has primarily focused on the role of associative dynamics with little-to-no ascription of representational/combinatorial capacities. The common assumption of these models is that behavioral adjustments are incremental and they result from updating of associations based on actions and their outcomes, without encoding the critical information serving as the determinant(s) of such contingencies (e.g., time in interval schedules, number in ratio schedules). On the other hand, an independent line of research provides evidence for behavioral phenomena that cannot be readily accounted for by the conventional associationist approach. In this paper, we will review different sets of findings particularly in the area of interval timing that suggest the ability of animals to make swift spontaneous computations on subjective quantities and incorporate them into their behavior. Findings of these studies constitute empirical challenges for the associationist approaches to behavioral flexibility. We argue that interval timing is a fertile ground for the formulation of critical tests of different theoretical approaches to animal behavior. PMID- 29027026 TI - Analysis of choroidal thickness in ocular hypertensive patients using enhanced depth imaging optical coherence tomography. AB - This study aimed to compare choroidal thickness between subjects with ocular hypertension (OHT) and normal individuals and explore factors affecting choroidal thickness. This study included 60 untreated newly diagnosed OHT eyes and 60 normal eyes. Choroidal thickness obtained from Cirrus HD-OCT was measured at different locations in the macular and peripapillary regions and compared between the two groups before and after adjusting for potential confounding variables. Regression analysis was performed to figure out factors influencing choroidal thickness. The macular choroidal thickness did not vary significantly between OHT patients and normal controls regardless of locations (all P > 0.05). The average peripapillary choroidal thickness was 167 +/- 53 MUm in OHT eyes and 185 +/- 63 MUm in the normal eyes; no significant differences were identified (P = 0.107). Only one of the locations in the temporal area in the OHT group demonstrated significantly thinner peripapillary choroidal thickness as compared to the normal group (P = 0.033). Age was the only significant factor affecting choroidal thickness on multivariate analysis regardless of locations (all P < 0.001). Choroidal thickness of the macular and peripapillary regions in OHT patients is not decreased significantly except one location in the temporal area of the optic disc when comparing with the normal subjects. Anatomic peripapillary choroidal thickness measurements with SD-OCT might be one more tool to track changes in OHT patients. PMID- 29027027 TI - Decoupling of behavioural and physiological thermal performance curves in ectothermic animals: a critical adaptive trait. AB - Thermal performance curves (TPCs) represent an increasingly popular tool in ecology for anticipating species responses to climate change. TPC theory has been developed using species that experience similar temperatures during activity and at rest and consequently exhibit thermal ranges for activity that closely coincide with their physiological thermal tolerances. Many species, however, experience other stressors, such as desiccation, that limit active behaviour at temperatures below the maximum values experienced. As a result, activity is constrained to a narrow thermal window that is a subset of the range of temperatures that can be tolerated physiologically. This results in a decoupling of behavioural and physiological TPCs that does not conform to the present paradigm. To test the generality of TPC theory, we measured thermal responses for behaviour (crawling speed) and physiological tolerance (heart rate) for six rocky shore gastropods spanning a thermal/desiccation stress gradient. We hypothesized a positive relationship between shore level and the degree of decoupling of behavioural and physiological TPCs. This prediction was confirmed, and was explained by the extension of the physiological TPC beyond the range of the behavioural TPC. Decoupling of behavioural and physiological TPCs is central to predicting accurately the fitness dynamics of ectothermic species subject to multiple stressors. We believe that this decoupling should be explicitly considered as an adaptive trait defining an organism's thermal niche. PMID- 29027028 TI - Determination of avidity of IgG against protein antigens from Streptococcus pneumoniae: assay development and preliminary application in clinical settings. AB - The measurement of antibody levels is a common test for the diagnosis of Streptococcus pneumoniae infection in research. However, the quality of antibody response, reflected by avidity, has not been adequately evaluated. We aimed to evaluate the role of avidity of IgG against eight pneumococcal proteins in etiologic diagnosis. Eight pneumococcal proteins (Ply, CbpA, PspA1 and 2, PcpA, PhtD, StkP-C, and PcsB-N) were used to develop a multiplex bead-based avidity immunoassay. The assay was tested for effects of the chaotropic agent, multiplexing, and repeatability. The developed assay was applied to paired samples from children with or without pneumococcal disease (n = 38 for each group), determined by either serology, polymerase chain reaction (PCR), or blood culture. We found a good correlation between singleplex and multiplex assays, with r >= 0.94.The assay was reproducible, with mean inter-assay variation <= 9% and intra-assay variation < 6%. Children with pneumococcal disease had lower median avidity indexes in the acute phase of disease for PspA1 and 2 (p = 0.042), PcpA (p = 0.002), PhtD (p = 0.014), and StkP-C (p < 0.001). When the use of IgG avidity as a diagnostic tool for pneumococcal infection was evaluated, the highest discriminative power was found for StkP-C, followed by PcpA (area under the curve [95% confidence interval, CI]: 0.868 [0.759-0.977] and 0.743 [0.607 879], respectively). The developed assay was robust and had no deleterious influence from multiplexing. Children with pneumococcal disease had lower median avidity against five pneumococcal proteins in the acute phase of disease compared to children without disease. PMID- 29027029 TI - 3-Hz postural tremor in multiple system atrophy cerebellar type (MSA-C)-a static posturography study. AB - The objective of the study is to evaluate postural dysfunction of multiple system atrophy-parkinsonian type (MSA-P) and cerebellar type (MSA-C) by static posturography exam. A total of 29 MSA-P patients, 40 MSA-C patients, and 23 healthy controls (HC) were recruited and engaged in a sensory organization test (SOT). The amplitude of the postural sway was measured and transformed into energy value by Fourier analyzer. SOT scores, frequency of falls and typical 3-Hz postural tremors during the four stance tasks, and energy value in three different frequency bands were recorded and compared. Compared with HC, SOT scores were significantly lower in MSA groups (P < 0.01). Compared with MSA-P, the vestibular scores were further reduced in MSA-C patients (P < 0.05). Falls were more frequent in MSA groups, especially in SOT4 task (foam surface with eyes closed) or in MSA-C group (P < 0.05). Typical 3-Hz postural tremor was observed in 97.5% MSA-C patients, in 24.1% MSA-P patients but in none of the HC (P < 0.05). Compared with HC, much more energy was consumed in every task, every direction, and nearly every frequency band in MSA groups. Energy value of MSA-C group was significantly higher than that of MSA-P, especially in higher frequency band (2 ~ 20 Hz) or in more difficult stance tasks (SOT 3 ~ 4, foam surface with eyes open or closed) (P < 0.05). Both MSA-P and MSA-C were characterized by severe static postural dysfunction. However, typical 3-Hz postural tremor was predominant in MSA-C and was very useful in the differential diagnosis between MSA-P and MSA-C. PMID- 29027030 TI - Diagnostic accuracy of fungal identification in histopathology and cytopathology specimens. AB - Tools to diagnose fungal infection are microscopic examination, antigen or antibody-based detection tests, molecular diagnostics, and culture, with culture being the "gold standard" for species-level identification. Although these methods are commonly used in concert and yield concordant results, in some cases tissue is not available for culture, and/or different methodologies yield discrepant results. These discrepancies may be clinically significant, causing confusion and inappropriate or delayed initiation of antifungals. This study evaluates the correlation between microscopic examination and the results of laboratory studies, and identifies clinical scenarios and specimen characteristics associated with tissue sent for microscopic examination without concomitant laboratory studies. We performed an 18-year retrospective review at a tertiary-care, academic medical center in the Midwest United States of all fungal infection diagnoses made by microscopic examination. Only 16% of samples with fungal infection diagnosed by microscopic examination had a concomitant sample submitted for laboratory studies. Of these cases, 36% had no growth on culture and/or had a negative laboratory study. Among cases in which fungal infections were diagnosed and laboratory studies were positive, the accuracy of histopathologic identification was 95%. The most common cause for incorrect morphologic diagnoses was misidentification of Aspergillus spp. and Mucorales. Our results underscore the importance of educating pathologists with regard to appropriate terminology and increasing knowledge of mycology, particularly in relation to organisms forming hyphae in tissue. Species-level diagnosis of fungi cannot be made by microscopic examination of tissue alone. Anatomic pathology reports should recommend correlation with laboratory studies, and provide a differential diagnosis based on morphology. PMID- 29027031 TI - Low-level laser irradiation induces in vitro proliferation of stem cells from human exfoliated deciduous teeth. AB - The aim of this study was to evaluate the effect of low-level laser irradiation (LLLI) on the proliferation and viability of stem cells from human exfoliated deciduous teeth (SHED). Cells were irradiated or not (control) with an InGaAlP laser diode (660 nm, 30 mW, continuous action mode) using two different energy densities (0.5 J/cm2-16 s; 1.0 J/cm2-33 s). Irradiation was performed at 0 and 48 h, with the laser probe fixed at a distance of 0.5 cm from the cells. Cell proliferation was analyzed at 0, 24, 48, and 72 h by the Trypan blue exclusion method and MTT assay. Cell cycle and Ki67 expression were analyzed by flow cytometry. Apoptosis-related events were evaluated by expression of annexin V/PI and nuclear morphological changes by staining with DAPI. Differences between groups at each time were analyzed by the Kruskal-Wallis and Mann-Whitney tests, adopting a level of significance of 5% (p < 0.05). The results showed that an energy density of 1.0 J/cm2 promoted an increase in cell proliferation at 48 and 72 h compared to the control and 0.5 J/cm2 groups. Cell cycle analysis revealed a predominance of cells in the S and G2/M phases in the irradiated groups. This finding was confirmed by the increased expression of Ki67. Low positive staining for annexin V and PI was observed in all groups, and no nuclear changes were detected, indicating that cell viability was not affected by the energy densities tested. It can be concluded that the LLLI parameters used (660 nm, 30 mW, 1.0 J/cm2) promote the proliferation of SHEDs and the maintenance of cell viability. PMID- 29027032 TI - Cocaine increases dopaminergic connectivity in the nucleus accumbens. AB - The development of addictive behavior is associated with functional and structural plasticity in the mesocorticolimbic pathway. Increased connectivity upon cocaine administration has been inferred from increases in dendritic spine density, but without observations of presynaptic elements. Recently, we established a method that enables analyses of both dendritic spines and glutamatergic boutons and presented evidence that cocaine induces changes in striatal connectivity. As the pharmacological and behavioral effects of cocaine directly implicate dopaminergic neurons and their afferents, a remaining question is whether dopaminergic striatal innervations also undergo structural plasticity. To address this issue, we generated transgenic mice in which the fluorophore tdTomato is expressed under the promoter of the dopamine transporter gene. In these mice, specific labeling of dopaminergic boutons was observed in the striatum. Of note, the accordance of our results for control mice with previous electron microscopy studies confirms that our method can be used to decipher the spatial organization of boutons in relation to dendritic elements. Following repeated cocaine administration that led to behavioral locomotor sensitization, an increased density of dopaminergic boutons was observed 1 day later in the nucleus accumbens shell specifically, and not in other striatal regions. Combined labeling of dopaminergic boutons and striatal dendrites showed that cocaine significantly increased the percentage of dendritic spines associated with a dopaminergic bouton. Our results show that chronic cocaine administration induces structural plasticity of dopaminergic boutons that could participate in dopamine dependent neuronal adaptations in the striatum. PMID- 29027033 TI - Auditory stimulus has a larger effect on anticipatory postural adjustments in older than young adults during choice step reaction. AB - PURPOSE: The study aim was to compare the influence of an auditory stimulus (AS) on anticipatory postural adjustments (APAs) between young and older adults during a choice step reaction. METHODS: Sixteen young and 19 older adults stepped forward in response to a visual imperative stimulus of an arrow. We used a choice reaction time (CRT) task and a Simon task which consisted of congruent and incongruent conditions. The direction of the presented arrow and its spatial location matched in the congruent condition while they did not in the incongruent condition. The AS was presented randomly and simultaneously with the visual stimulus. Incorrect weight shifts before lifting off the foot, termed APA errors, stepping errors, temporal parameters, and APA amplitudes were analyzed. RESULTS: The APA error rate was higher in trials with than without AS in all task conditions for the older group, while this increase occurred only in the incongruent condition for the young group. The stepping error rate was also increased in the presence of AS in the incongruent condition for the older group. Reaction times were faster with AS in both groups. The APA amplitude of erroneous APA trials became larger with AS in the incongruent condition for both groups, and this effect appeared greater for the older group. CONCLUSIONS: The effect of AS on APAs is larger in the elderly during a choice step reaction. In the presence of incongruent visual information, this effect becomes even greater, potentially inducing not only APA errors but also stepping errors. PMID- 29027034 TI - Low-intensity LED therapy (lambda 640 +/- 20 nm) on saphenectomy healing in patients who underwent coronary artery bypass graft: a randomized, double-blind study. AB - Myocardial revascularization surgery (CABG) is the most appropriate treatment for coronary artery disease. Currently, the great challenge is to reduce postoperative complications, such as wound infections, dehiscence, pain, and patients' quality of life. The saphenectomy is the target of complications in 10% of cases, which can cause greater morbidity, time, and cost of hospitalization. Studies show that low-intensity laser or light-emitted diode (LED) therapy promotes positive biomodulation of the tissue repair process, culminating in a lower incidence of dehiscence, pain reduction, and improvement in quality of life. The objective of the present study was to evaluate clinically the saphenous tissue repair after LED therapy. Forty subjects of both genders who underwent CABG with extracorporeal circulation were randomly divided into two groups: the placebo (PG) and experimental (EG). The experimental group underwent low intensity LED therapy (lambda 640 +/- 20 nm, 6 J/cm2) on saphenectomy. The tissue repair was analyzed by digital photogrammetry on the first and fifth postoperative day. The border closure was blindly evaluated by three researchers. The hematoma and hyperemia area was quantitatively analyzed using ImageJ(c) software. The results showed that in the experimental group, there were less bleeding points and no dehiscence in saphenectomy, as compared to the placebo group. There was also a smaller area of hematoma and hyperemia in the experimental group (p < 0.0009). These data lead to the conclusion that the type of phototherapy protocol employed can assist in tissue repair. PMID- 29027035 TI - No significant differences in short-term renal prognosis between living kidney donors with and without diabetes. AB - BACKGROUND: Renal prognosis in living kidney donors with diabetes is currently not known. In this study, we sought to investigate renal prognosis in living kidney donors with diabetes. METHODS: We retrospectively investigated 241 living kidney donors who underwent nephrectomy at Jichi Medical University Hospital between January 2000 and December 2015. Donors with a follow-up period of less than 1 year were excluded. The remaining donors were divided into a diabetic group and a non-diabetic group. Their clinical parameters before donation and renal prognosis after donation were compared. RESULTS: Of the 241 donors, 16 were excluded due to their follow-up period being less than 1 year. Of the remaining 225 donors, 14 were diabetic and 211 were non-diabetic. There were no significant differences in variables at pre-donation. The median follow-up period was 4.3 (1.5-10.7) and 4.6 (1.0-13.0) years in kidney donors with and without diabetes, respectively. At the end of follow-up, the estimated glomerular filtration rate was 51.7 +/- 7.1 ml/min/1.73 m2 in the diabetic group and 52.1 +/- 12.2 ml/min/1.73 m2 (p = 0.906) in the non-diabetic group; urine albumin excretion was 9.5 (2-251) mg/day (or mg/g creatinine) in the diabetic group and 6 (0-626) mg/day (or mg/g creatinine) in the non-diabetic group (p = 0.130); and urine protein excretion was 0.079 (0-0.41) g/day in the diabetic group and 0.051 (0 3.7) g/day in the non-diabetic group (p = 0.455). CONCLUSIONS: There were no significant differences in short-term renal prognosis between kidney donors with and without diabetes. PMID- 29027036 TI - Risk factors of ceftriaxone-associated biliary pseudolithiasis in adults: influence of renal dysfunction. AB - BACKGROUND: Ceftriaxone (CTRX) is a known cause of biliary pseudolithiasis (BPL) mainly in children. Biliary elimination of CTRX increases in patients with renal dysfunction. However, the influence of renal dysfunction on the incidence of CTRX associated BPL has not been well investigated. The aim of this study was to investigate the cumulative incidence of CTRX-associated BPL in adults and to assess if renal dysfunction is a risk factor. METHODS: We retrospectively analyzed the medical records of 478 patients treated with CTRX to assess the incidence and risk factors of CTRX-associated BPL. We examined age, sex, body weight, dosage, and duration of CTRX therapy, and the concentrations of serum creatinine, estimated glomerular filtration rate (eGFR), albumin, and serum calcium in all the patients. The cumulative incidence of BPL was calculated using a competing risk model. The multivariate analysis of each variable for the development of BPL was assessed by a Cox proportional hazards model. RESULTS: A total of 362 patients (75.7%) had renal dysfunction (eGFR: < 60 mL/min). The cumulative incidence of BPL in patients with renal dysfunction was significantly higher than that in patients with normal kidney function (4.1 vs. 0.6%, p = 0.017). Renal dysfunction (Hazard ratio (HR) 8.14, 95% CI 1.05-63.0, p = 0.045) and female sex (HR 5.35, 95% CI 1.17-24.5, p = 0.031) were independent risk factors of CTRX-associated BPL, which was confirmed using multivariate analysis (renal dysfunction: HR 7.93, 95% CI 1.04-60.5, p = 0.046) (female sex HR 4.65, 95% CI 1.03-21.1, p = 0.046). CONCLUSIONS: Renal dysfunction is an independent risk factor of CTRX-associated BPL in adults. PMID- 29027037 TI - Optimal surface property for three-dimensional echo visualization. AB - PURPOSE: Three-dimensional (3D) echo is a useful modality to guide off-pump intracardiac surgery, and this study aimed to determine the optimal surface property for minimizing echo dropout and grating lobes. METHODS: A total of 13 specimens were examined. The specimens were scanned while they were rotated from 0 degrees to 90 degrees , and en face views were recorded in the 3D zoom mode. Changes in brightness were compared with the surface profile, which was traced from microscopic images. The brightness and size of grating lobes were also examined. RESULTS: Decreases in brightness that were observed at a large rotation angle were classified into three groups (sharp, moderate, and gradual), and variation in the effective reflective plane size appeared to be a major determinant of this property. The same material showed different degrees of reflection depending on the surface profile. The size of grating lobes was affected by variation in the reflective plane size, but not by the intensity of reflection. The brightness of the grating lobes was similar among specimens. CONCLUSIONS: These results suggest that echo dropout and grating lobes can be effectively eliminated by an appropriate surface profile; thus, a likely practical solution would be to manufacture a surface that provides an adequate reflective surface size at various incident angles. PMID- 29027038 TI - Rescue of Outer Hair Cells with Antisense Oligonucleotides in Usher Mice Is Dependent on Age of Treatment. AB - The absence of functional outer hair cells is a component of several forms of hereditary hearing impairment, including Usher syndrome, the most common cause of concurrent hearing and vision loss. Antisense oligonucleotide (ASO) treatment of mice with the human Usher mutation, Ush1c c.216G>A, corrects gene expression and significantly improves hearing, as measured by auditory-evoked brainstem responses (ABRs), as well as inner and outer hair cell (IHC and OHC) bundle morphology. However, it is not clear whether the improvement in hearing achieved by ASO treatment involves the functional rescue of outer hair cells. Here, we show that Ush1c c.216AA mice lack OHC function as evidenced by the absence of distortion product otoacoustic emissions (DPOAEs) in response to low-, mid-, and high-frequency tone pairs. This OHC deficit is rescued by treatment with an ASO that corrects expression of Ush1c c.216G>A. Interestingly, although rescue of inner hairs cells, as measured by ABR, is achieved by ASO treatment as late as 7 days after birth, rescue of outer hair cells, measured by DPOAE, requires treatment before post-natal day 5. These results suggest that ASO-mediated rescue of both IHC and OHC function is age dependent and that the treatment window is different for the different cell types. The timing of treatment for congenital hearing disorders is of critical importance for the development of drugs such ASO 29 for hearing rescue. PMID- 29027040 TI - Actor-network theory and the OSCE: formulating a new research agenda for a post psychometric era. AB - The Objective Structured Clinical Examination (OSCE) is a ubiquitous part of medical education, although there is some debate about its value, particularly around possible impact on learning. Literature and research regarding the OSCE is most often situated within the psychometric or competency discourses of assessment. This paper describes an alternative approach: Actor-network-theory (ANT), a sociomaterial approach to understanding practice and learning. ANT provides a means to productively examine tensions and limitations of the OSCE, in part through extending research to include social relationships and physical objects. Using a narrative example, the paper suggests three ANT-informed insights into the OSCE. We describe: (1) exploring the OSCE as a holistic combination of people and objects; (2) thinking about the influences a checklist can exert over the OSCE; and (3) the implications of ANT educational research for standardisation within the OSCE. We draw from this discussion to provide a practical agenda for ANT research into the OSCE. This agenda promotes new areas for exploration in an often taken-for-granted assessment format. PMID- 29027042 TI - "Sex in a Relationship" versus "Sex During a One-Night Stand": The Link Between Mental Representations of Consensual Sexuality, Mating Strategies, and Sexual Experience in Heterosexual Women and Men. AB - Sexual scripts, that is, the mental representations of sexual behavior, are highly influenced by mating strategies and sexual experience. The relationship between these factors and sexual scripts is, however, poorly understood. Therefore, we assessed how long-term (e.g., "sex in a relationship") and short term (e.g., "one-night stand") strategies, as well as experience with highly scripted sexual practices (BDSM: bondage-discipline, dominance-submission, sadism masochism), influence verbalized sexual script composition and detailedness. To this end, 204 heterosexual men and women generated both a "sex in a relationship" and a "one-night stand" script. Regarding mating strategies, both men and women generated shorter "sex in a relationship" scripts than "one-night stand" scripts, due to a shorter approach (flirting) phase. In addition, in the "sex in a relationship" script, women generated longer foreplay phases than men. Regarding sexual experience, in the "sex in a relationship" script, individuals with high BDSM experience generated longer foreplay phases than individuals with middle- or low-BDSM experience. This pattern was reversed in the "one-night stand" script. These results provide empirical support for interactions between mating strategies and individual experience with regard to the mental representations of sexual activity and gender behavior. Understanding this relationship may enable us to better predict sexual encounters and may help to prevent conflicting or abusive situations. PMID- 29027039 TI - Patterns of Alcohol Abuse, Depression, and Intimate Partner Violence Among Township Mothers in South Africa Over 5 Years. AB - Alcohol is a major contributor to the global burden of disease. In South Africa, alcohol abuse is hypothesized to correlate with women's HIV status, mental health, and partner relationships over time. All pregnant women in 12 urban, low income, Cape Town neighborhoods were interviewed at baseline, post-birth, and at 6, 12, 36, and 60 months following delivery with retention rates from 82.5 to 94%. Women were assessed for any alcohol use, problematic drinking, depression, intimate partner violence, and HIV status. Prior to pregnancy discovery and 5 years after giving birth, alcohol use was 25.8 and 24.7%, respectively. Most women decreased their alcohol use during pregnancy. Twenty-one percent reported alcohol use on two or more assessments, and only 15% of the mothers drinking alcohol at 5 years were also drinking at baseline. Mothers with depression had a higher likelihood of drinking alcohol compared to mothers who were not depressed only at baseline and 6 months post-birth. Mothers who experienced IPV had more than twice the likelihood of drinking alcohol compared to non-IPV mothers at all assessments. HIV positive mothers were more likely to drink alcohol compared to mothers without HIV prior to pregnancy discovery and at 5 years post-birth. These longitudinal trends in alcohol use among young women in South Africa represent a large economic, social, and health burden and must be addressed in a comprehensive manner. PMID- 29027041 TI - Increased hepatic fatty acid polyunsaturation precedes ectopic lipid deposition in the liver in adaptation to high-fat diets in mice. AB - OBJECTIVE: We monitored hepatic lipid content (HLC) and fatty acid (FA) composition in the context of enhanced lipid handling induced by a metabolic high fat diet (HFD) challenge and fasting. MATERIALS AND METHODS: Mice received a control diet (10% of kilocalories from fat, N = 14) or an HFD (45% or 60% of kilocalories from fat, N = 10 and N = 16, respectively) for 26 weeks. A subset of five mice receiving an HFD (60% of kilocalories from fat) were switched to the control diet for the final 7 weeks. At nine time points, magnetic resonance spectroscopy was performed in vivo at 14.1 T, interleaved with glucose tolerance tests. RESULTS: Glucose intolerance promptly developed with the HFD, followed by a progressive increase of fasting insulin level, simultaneously with that of HLC. These metabolic defects were normalized by dietary reversal. HFD feeding immediately increased polyunsaturation of hepatic FA, before lipid accumulation. Fasting-induced changes in hepatic lipids (increased HLC and FA polyunsaturation, decreased FA monounsaturation) in control-diet-fed mice were not completely reproduced in HFD-fed mice, not even after dietary reversal. CONCLUSION: A similar adaptation of hepatic lipids to both fasting and an HFD suggests common mechanisms of lipid trafficking from adipose tissue to the liver. Altered hepatic lipid handling with fasting indicates imperfect metabolic recovery from HFD exposure. PMID- 29027043 TI - Clinical, psychological features and quality of life of fibromyalgia patients: a cross-sectional study of Chinese sample. AB - This study aimed to determine the clinical, psychological features, and quality of life in Chinese fibromyalgia (FM) patients who fulfilled the American College of Rheumatology (ACR) 2010 FM classification criteria at initial diagnosis. A cross-sectional study was carried out in the Chinese People's Liberation Army (PLA) General Hospital. A hundred and seven Chinese FM patients (86 females, 21 males) were included. Eighty-six patients completed the questionnaires. Descriptive, differences, and correlation analyses were performed. The results showed that Chinese FM patients started their diseases at a median age of 37 years, with a male-to-female ratio of 1:4.1. Most patients were diagnosed about 2 years after symptoms onset. Nearly 60 % (59.81%) patients had less than college education, 58.88% did not have a full-time job, and 41.12% had low-back pain. Out of 86 patients, 58 (67.4%) had anxiety and 75 (87.2%) had depression. FM patients had poor quality of life in each aspect and deficient social support. The level of pain for the past 7 days was strongly correlated with patient global impression of severity (PGI-S; r = 0.651, p < 0.001) and patient global impression of bother (PGI-B; r = 0.628, p < 0.001). PGI-B was correlated with seven subscales of short-form health survey (SF-36). The study demonstrated the clinical, psychological features of Chinese patients. The diagnosis was delayed for about 2 years. Most of the patients had anxiety and depression, had poor quality of life, and lacked proper social support. PGI-B might be a simple measurement to evaluate patients' quality of life. PMID- 29027044 TI - Crude glycerol from biodiesel as a carbon source for production of a recombinant highly thermostable beta-mannanase by Pichia pastoris. AB - OBJECTIVE: To explore an efficient use of crude glycerol for the production of a highly thermostable beta-mannanase (ReTMan26) by Pichia pastoris X33. RESULTS: Cell growth was significantly inhibited by 4 and 6% (w/v) crude glycerol in 250 ml shake-flasks and in 5 l bioreactor batch cultures, respectively, but not affected by pure glycerol at the same concentrations. For further study, the impact of various impurities in crude glycerol on the cell growth of, and ReTMan26 production by, Pichia pastoris was investigated. Salts and methanol did not exert an inhibitory effect, but >= 0.2% and 0.3% (w/v) soap in shake-flask and bioreactor cultures, respectively, inhibited fermentation. Under identical conditions, the biomass and ReTMan26 activity produced by high-cell-density fermentation using 5% crude glycerol (glycerol at 80%, w/w) were slightly higher than those using 4% (w/v) pure glycerol. CONCLUSIONS: Non-pretreated <= 5% (w/v) crude glycerol could be effectively utilized for industrial production of ReTMan26, and the total production costs using crude glycerol were ~ 4.2% lower than those using pure glycerol. PMID- 29027046 TI - Contamination levels and human health risk assessment of toxic heavy metals in street dust in an industrial city in Northwest China. AB - This study investigated the content, distribution, and contamination levels of toxic metals (Cd, Cr, Cu, Pb, and Zn) in street dust in Lanzhou, an industrial city in Northwest China. Meanwhile, the risk these metals posed to the urban ecosystem and human health was also evaluated using the potential ecological risk index and human exposure model. Results showed that concentrations of these metals in the dust are higher than the background value of local soil, with Cu having the highest levels. The districts of Anning and Xigu had the most extreme levels of contamination, while Chengguan and Qilihe districts were lightly contaminated, which can be partly attributed to human activities and traffic densities. In comparison with the concentrations of selected metals in other cities, the concentrations of heavy metals in Lanzhou were generally at moderate or low levels. Heavy metal concentration increased with decreasing dust particle size. The pollution indices of Cr, Cd, Cu, Pb, and Zn were in the range of 0.289 2.09, 0.332-2.15, 1.38-6.21, 0.358-2.59, and 0.560-1.83 with a mean of 1.37, 1.49, 3.18, 1.48, and 0.897, respectively. The geo-accumulation index (I geo) suggested that Zn in street dust was of geologic origin, while Cd, Cr, Pb, and Cu were significantly impacted by anthropogenic sources. The comprehensive pollution index showed that urban dust poses a high potential ecological risk in Lanzhou. Non-carcinogenic and carcinogenic effects due to exposure to urban street dust were assessed for both children and adults. For non-carcinogenic effects, ingestion appeared to be the main route of exposure to dust particles and thus posed a higher health risk to both children and adults for all metals, followed by dermal contact. Hazard index values for all studied metals were lower than the safe level of 1, and Cr exhibited the highest risk value (0.249) for children, suggesting that the overall risk from exposure to multiple metals in dust is low. The carcinogenic risk for Cd and Cr was all below the acceptable level (< 10-6). PMID- 29027047 TI - Soil color indicates carbon and wetlands: developing a color-proxy for soil organic carbon and wetland boundaries on sandy coastal plains in South Africa. AB - A relationship between soil organic carbon and soil color is acknowledged-albeit not a direct one. Since heightened carbon contents can be an indicator of wetlands, a quantifiable relationship between color and carbon might assist in determining wetland boundaries by rapid, field-based appraisal. The overarching aim of this initial study was to determine the potential of top soil color to indicate soil organic carbon, and by extension wetland boundaries, on a sandy coastal plain in South Africa. Data were collected from four wetland types in northern KwaZulu-Natal in South Africa. Soil samples were taken to a depth of 300 mm in three transects in each wetland type and analyzed for soil organic carbon. The matrix color was described using a Munsell soil color chart. Various color indices were correlated with soil organic carbon. The relationship between color and carbon were further elucidated using segmented quantile regression. This showed that potentially maximal carbon contents will occur at values of low color indices, and predictably minimal carbon contents will occur at values of low or high color indices. Threshold values can thus be used to make deductions such as "when the sum of dry and wet Value and Chroma values is 9 or more, carbon content will be 4.79% and less." These threshold values can then be used to differentiate between wetland and non-wetland sites with a 70 to 100% certainty. This study successfully developed a quantifiable correlation between color and carbon and showed that wetland boundaries can be determined based thereon. PMID- 29027048 TI - Export fluxes of geochemical solutes in the meltwater stream of Sutri Dhaka Glacier, Chandra basin, Western Himalaya. AB - The hydrochemistry of meltwater from the Sutri Dhaka Glacier, Western Himalaya, has been studied to understand the influence of the factors controlling the weathering processes of the glaciers during the peak ablation period. The high solar irradiance prompted intense melting, which has raised the stream flow of the glacier. The meltwater has been observed as slightly alkaline (mean pH 8.2) and contains the major anions (HCO3- > SO42- > NO3- > Cl-) and cations (Ca2+ > Mg2+ > K+ > Na+ > NH4+) with Ca2+ (78.5%) and HCO3- (74.5%) as the dominant species. The piper diagram indicates the category of stream meltwater as Ca2+ HCO3- type. In addition, it is evident from the Gibbs diagram that the interaction between the meltwater and bedrock controls the ionic concentrations of the glacial meltwater. The high ratio value (~ 0.75) of HCO3-/(HCO3- + SO42-) indicates that the carbonate weathering is dominant. Fe and Al followed by Mn, Sr, and Ti are the most dominant trace elements present in the meltwater. The significant negative correlation exhibited by the major ions and Sr with the discharge is recommended for the enrichment of these solutes during the lean discharge periods. However, the insignificant correlation of Fe, Al, Mn, and Ti with discharge suggests their physicochemical control. The principal component analysis (PCA) carried has highlighted three dominant composites, i.e., the water rock interaction, atmospheric dust inputs, and physicochemical changes in the meltwater. Hence, the present study elucidates the export of geochemical solutes from Sutri Dhaka Glacier and factors governing the water chemistry, which helps in the better understanding of hydrochemical processes of the Himalayan glaciers and substantial improvement of our understanding about the glacio-hydrological environments and their response in the scenario of global warming. PMID- 29027045 TI - Characteristics of patients with fragility hip fractures in the northern Kyushu district in Japan: a multicenter prospective registry based on an electronic data capture system. AB - Osteoporosis has become a worldwide public health problem, in part due to the fact that it increases the risk of fragility hip fractures (FHFs). The epidemiological assessment of FHFs is critical for their prevention; however, datasets for FHFs in Japan remain scarce. This was a multicenter, prospective, observational study in the northern district of Kyushu Island. Inclusion criteria were age > 60 years with a diagnosis of FHF and acquisition of clinical data by an electronic data capture system. Of 1294 registered patients, 1146 enrolled in the study. Nearly one third of patients (31.8%) had a history of previous fragility fractures. The percentage of patients receiving osteoporosis treatment on admission was 21.5%. Almost all patients underwent surgical treatment (99.1%), though fewer than 30% had surgery within 48 h after hospitalization. Bone mineral density (BMD) was evaluated during hospitalization in only 50.4% of patients. The rate of osteoporosis treatment increased from 21.5% on admission to 39.3% during hospitalization. The main reasons that prescribers did not administer osteoporosis treatment during hospitalization were forgetfulness (28.4%) and clinical judgment (13.6%). Age and female ratio were significantly higher in patients with previous FHFs than in those without. There was a significant difference in the rate of osteoporosis treatment or L-spine BMD values in patients with or without previous FHFs on admission. In conclusion, this study confirmed that the evaluation and treatment of osteoporosis and FHFs is still suboptimal in Japan, even in urban districts. PMID- 29027049 TI - Acute phase dynamics of circulating tumor cells after paclitaxel and doxorubicin chemotherapy in breast cancer mouse models. AB - PURPOSE: Circulating tumor cells (CTCs) can provide a potentially minimal invasive source for monitoring chemotherapeutic effects. However, detailed in vivo dynamics of CTC after chemotherapy remain largely unknown. METHODS: We monitored CTC number and morphology early after chemotherapy using a newly developed cytology-based CTC detection device and triple-negative breast cancer mouse CTC models with spontaneous lung metastatic potential. RESULTS: Paclitaxel inhibited cell growth of breast cancer cells by mainly G2/M cell cycle arrest and partly apoptosis, whereas doxorubicin inhibited cell growth mainly by apoptosis and partly G2 cell cycle arrest in vitro. The number of CTCs was significantly increased 3-10 days after paclitaxel and doxorubicin chemotherapy and decreased thereafter in two mouse CTC models. The transiently increased CTCs early post chemotherapy consisted of not only G2/M arrested cells (apoptotic cells), but also morphologically near-intact live cells. This heterogeneous cell population of CTCs was similar to that of primary tumor tissue after chemotherapy. CONCLUSIONS: These results indicate that CTCs can be mobilized from the primary tumor in rapid response to chemotherapy and suggest the possibility that CTC monitoring from both numerical and morphological viewpoints early after chemotherapy using a cytology-based CTC detection device would be a useful diagnostic tool for predicting drug sensitivity/resistance in preclinical and clinical setting. PMID- 29027050 TI - Characterization and origin of organic and inorganic pollution in urban soils in Pisa (Tuscany, Italy). AB - We assessed the quality of 31 urban soils in Pisa by analyzing total petroleum hydrocarbons (TPHs), Cd, Cr, Cu, Hg, Mn, Ni, Pb, Zn, and the platinum group elements (PGEs). The risk was evaluated by the geological accumulation index (I geo) and the enrichment factor (EF). Results were compared with those obtained from a non-urban site and with the quantitative limits fixed by Italian legislation. In nearly all the monitored sites, the legal limit for TPH of 60 mg/kg in residential areas was exceeded, indicating widespread and intense pollution throughout the entire city area. The I geo indicated no Cd, Cu, Mn, Ni, and Zn pollution and minimal Pb and Cr pollution due to anthropogenic enrichment. Legal Hg and Zn limits of 1 and 150 mg/kg, respectively, were exceeded in about 20% of sites; Cd (2 mg/kg), Cr (150 mg/kg), and Cu (120 mg/kg) in only one site; and the Ni legal limit of 120 mg/kg was never exceeded. Some urban soils showed a higher Hg level than the more restrictive legal limit of 5 mg/kg concerning areas for industrial use. Based on the soluble, exchangeable, and carbonate-bound fractions, Mn and Zn showed the highest mobility, suggesting a more potential risk of soil contamination than the other metals. The TPH and both Cr and Hg amounts were not correlated with any of the other monitored metals. The total contents of Cd, Pb, Zn, and Cu in soils were positively correlated with each other, suggesting a common origin from vehicular traffic. The PGE values (Pt and Pd) were below the detection limits in 75%-90% of the monitored areas, suggesting that their accumulation is at an early stage. PMID- 29027051 TI - Cell response of flexible PMMA-derivatives: supremacy of surface chemistry over substrate stiffness. AB - The present work reports on the development of a range of poly(methyl methacrylate)/poly(ethylene glycol) (PMMAPEG)-based materials, characterized by different elasticity moduli in order to study the influence of the substrate's mechanical properties on the response of human umbilical vein endothelial cells (HUVECs). To render the selected materials cell-interactive, a polydopamine (PDA)/gelatin type B (Gel B) coating was applied. Prior to the in vitro assay, the success of the PDA and Gel B immobilization onto the materials was confirmed using X-ray photoelectron spectroscopy (XPS) as reflected by the nitrogen percentages measured for the materials after PDA and Gel B deposition. Tensile tests showed that materials with E-moduli ranging from 37 to 1542 MPa could be obtained by varying the ratio between PMMA and PEG as well as the PEG molecular weight and its functionality (i.e. mono-methacrylate vs. di-methacrylate). The results after 1 day of cell contact suggested a preferred HUVECs cell growth onto more rigid materials. After 1 week, the material with the lowest E-modulus of 37 MPa showed lower cell densities compared to the other materials. No clear correlation could be observed between the number of focal adhesion points and the substrate stiffness. Although minor differences were found, these were not statistically significant. This last conclusion again highlights the universal character of the PDA/Gel B modification. The present work could thus be valuable for the development of a range of cell substrates requiring different mechanical properties in line with the envisaged application while the cell response should ideally remain unaffected. PMID- 29027052 TI - Geochemical fingerprints of "Prosecco" wine based on major and trace elements. AB - The terroir can be defined as interactive ecosystem that includes climate, geology, soil and grapevine, and it is used to explain the hierarchy of high quality of wine. In order to understand the terroir functions, it is necessary to analyse the interactions among the geology, soil and wine. To define a geochemical fingerprint, the relationship between geochemistry of vineyard soil and chemical composition of wine from Veneto Italian Region was studied. The vineyards tested belonged to four distinct wineries located in the Veneto alluvial plain, included in the Controlled Designation of Origin (DOC) area of Prosecco. We investigated the relationship between major and trace elements in soil and their concentrations in Prosecco wine according to geographical origin. The detection of chemical composition in soil and wine were analysed by inductively coupled plasma mass spectrometry, and data were elaborated by nonparametric test and multivariate statistics Linear Discrimination Analysis. The geochemical and statistical analyses allowed to discriminate the vineyard soils according to geo-lithological characteristics of each area and to identify the geochemical "Prosecco" fingerprints, useful against fraudulent use of DOC wine labels. PMID- 29027054 TI - Capsular bag irrigation using 0.025% povidone-iodine in balanced salt solution PLUS for the treatment of postoperative endophthalmitis. PMID- 29027053 TI - Public Health Considerations Associated with the Location and Operation of Off Leash Dog Parks. AB - Off-leash dog parks may enhance human health, but may also lead to health risk through infection or canine aggression. Published evidence was reviewed to examine positive and negative public health impacts of off-leash dog parks, as well as strategies for enhancing benefits and mitigating risks. Evidence suggests that off-leash dog parks can benefit physical and social health, as well as community connectedness. While studies have documented shedding of zoonotic agents in dog parks, the risk of transmission to humans is relatively unknown. Evidence on the risk of dog bites in off-leash dog parks is also limited. Case examples from North American off-leash dog parks highlight the importance of park location/design, public adherence to safe and hygienic practices, and effective regulatory strategies for mitigating potential risks and maximizing the benefits of off-leash dog parks. PMID- 29027055 TI - Socio-demographic characters, distribution and transformation of iodine in soil, plant and wheat grains at District Diamer, Gilgit-Baltistan, Pakistan. AB - Iodine deficiency in soils and plants is a common problem in the hilly areas and has still been ignored. The aim of the current study is to investigate associated health issues, socio-economic characteristics and people's perception regarding iodine deficiency. Furthermore, a follow-up study was conducted to determine iodine and nutrients concentration in soil and crops at District Diamer, Gilgit Baltistan, Pakistan. A descriptive and empirical analysis was examined. Most importantly, male was significantly observed as more affected for iodine deficiency than female, as contrary to the literature, socio-economic factors such as households' income and awareness (education) are reported as negative and significant contributor to reduce the iodine deficiency among the people irrespective of the gender. Majority of people (84%) heard about the iodine, but about 51.6% people argue that iodine has no effect on the human body and 56% of the respondents do not know why iodine is necessary for human. It was found that 11.5% of the community was affected from the IDD and majority of them were females. Wheat crops were the principal crop since it supplies 75% of calorific energy in an average Pakistani diet. The concentrations of iodine in soil samples range from 4.21 to 5.45 mg kg-1. The concentration of iodine in wheat crop plant sampled were considerably varied as Boner > Gais > Goher Abad with 1.12, 0.91 and 0.81 mg kg-1. respectively. Likewise, grain iodine concentration was varied as Gais > Boner > Goher Abad with 0.126, 0.102 and 0.078 mg kg-1, respectively. This study exposed that community using the cereal crops could face iodine deficiency in their diet which can cause endemic goiter among the population and control the iodine deficiency by empowering the rural community to raise the income level and providing the awareness to the people. PMID- 29027057 TI - Comparative analysis of mean retinal thickness measured using SD-OCT in normal young or old age and glaucomatous eyes. AB - PURPOSE: To evaluate changes in macular thickness, ganglion cell layer/inner plexiform layer (GCL/IPL) thickness, and retinal nerve fiber layer (RNFL) thickness in normal eyes and glaucomatous eyes using spectral domain optical coherence tomography (SD-OCT). METHODS: We enrolled 89 eyes (all left eyes), including 45 (of 45 patients) eyes with glaucoma and 44 (of 44 patients) normal eyes. The data from macular measurements using spectral domain optical coherence tomography were analyzed according to groups divided by age and glaucoma status. The macular thickness analysis, GCL/IPL thickness, and RNFL thickness values determined by SD-OCT scans were compared among the groups. RESULTS: Mean macular thickness decreased significantly with age or glaucoma. Mean GCL/IPL thickness decreased significantly in glaucomatous eyes in all sectors but did not decrease with age. Mean RNFL thickness, which was divided into four quadrants (superior, nasal, inferior, and temporal), decreased significantly in glaucomatous eyes at all quadrants and decreased in the temporal quadrant with age in non-glaucomatous eyes. No significant differences were detected between eyes with normal tension glaucoma (NTG) and primary open angle glaucoma (POAG) in all sectors of mean GCL/IPL thickness, RNFL thickness, and macular thickness. CONCLUSIONS: No significant difference in mean thickness was detected between eyes with NTG and POAG. Some of the sectors of RNFL thickness decreased with age or glaucoma. GCL/IPL thickness, however, decreased in glaucomatous eyes but not with age. Therefore, GCL/IPL thickness is less influenced by age when monitoring patients with glaucoma or suspect glaucoma. PMID- 29027056 TI - Curcumin affords neuroprotection and inhibits alpha-synuclein aggregation in lipopolysaccharide-induced Parkinson's disease model. AB - Parkinson's disease (PD) pathology is characterized by the abnormal accumulation and aggregation of the pre-synaptic protein alpha-synuclein in the dopaminergic neurons as Lewy bodies (LBs). Curcumin, which plays a neuroprotective role in various animal models of PD, was found to directly modulate the aggregation of alpha-synuclein in in vitro as well as in in vivo studies. While curcumin has been shown to exhibit strong anti-oxidant and anti-inflammatory properties, there are a number of other possible mechanisms by which curcumin may alter alpha synuclein aggregation which still remains obscure. Therefore, the present study was designed to understand such concealed mechanisms behind neuroprotective effects of curcumin. An animal model of PD was established by injecting lipopolysaccharide (LPS, 5 ug/5 ul PBS) into the substantia nigra (SN) of rats which was followed by curcumin administration (40 mg/kg b.wt (i.p.)) daily for a period of 21 days. Modulatory functions of curcumin were evident from the inhibition of astrocytic activation (GFAP) by immunofluorescence and NADPH oxidase complex activation by RT-PCR. Curcumin supplementation prevented the LPS induced upregulation in the protein activity of transcription factor NFkappaB, proinflammatory cytokines (TNF-alpha, IL-1beta, and IL-1alpha), inducible nitric oxide synthase (iNOS) as well as the regulating molecules of the intrinsic apoptotic pathway (Bax, Bcl-2, Caspase 3 and Caspase 9) by ELISA. Curcumin also resulted in significant improvement in the glutathione system (GSH, GSSG and redox ratio) and prevented iron deposition in the dopaminergic neurons as depicted from atomic absorption spectroscopy (AAS) and Prussian blue staining, respectively. Curcumin also prevented alpha-synuclein aggregates in the dopaminergic neurons as observed from gene as well as protein activity of alpha synuclein using RT-PCR and IHC. Collectively, our results suggest that curcumin can be further pursued as a candidate drug in the molecules targeted therapy for PD and other related synucleopathies. PMID- 29027058 TI - The Impact of Religiosity on Substance Abuse and Obesity in African Americans. AB - Among the African American community, there exist many health disparities which warrant greater examination through the practice of social work. The aim of the present research was to explore the impact of religiosity on substance abuse and obesity among African American populations by employing a systematic review of the current body of literature on this subject. While many of the studies reviewed found at least a weak relationship between religiosity and obesity, such results were not consistent across all materials examined. Among those studies that found a correlation between these factors, many demonstrated that religiosity had a positive impact on substance abuse and obesity. A discussion of the implications of these findings is submitted as a means of illuminating the significance of all research findings that were examined. Limitations such as more standardized criteria for inclusion of research material are identified and discussed. Implications for future research are presented to promote the advancement of future efforts in this area research. PMID- 29027059 TI - Bacterial and archaeal communities inhabiting mussels, sediment and water in Indonesian anchialine lakes. AB - Anchialine lakes are a globally rare and unique ecosystem consisting of saline lakes surrounded by land and isolated from the surrounding marine environment. These lakes host a unique flora and fauna including numerous endemic species. Relatively few studies have, however, studied the prokaryote communities present in these lakes and compared them with the surrounding 'open water' marine environment. In the present study, we used a 16S rRNA gene barcoded pyrosequencing approach to examine prokaryote (Bacteria and Archaea) composition in three distinct biotopes (sediment, water and the mussel Brachidontes sp.) inhabiting four habitats, namely, three marine lakes and the surrounding marine environment of Berau, Indonesia. Biotope and habitat proved significant predictors of variation in bacterial and archaeal composition and higher taxon abundance. Most bacterial sequences belonged to OTUs assigned to the Proteobacteria. Compared to sediment and water, mussels had relatively high abundances of the classes Mollicutes and Epsilonproteobacteria. Most archaeal sequences, in turn, belonged to OTUs assigned to the Crenarchaeota with the relative abundance of crenarchaeotes highest in mussel samples. For both Bacteria and Archaea, the main variation in composition was between water samples on the one hand and sediment and mussel samples on the other. Sediment and mussels also shared much more OTUs than either shared with water. Abundant bacterial OTUs in mussels were related to organisms previously obtained from corals, oysters and the deepsea mussel Bathymodiolus manusensis. Abundant archaeal OTUs in mussels, in contrast, were closely related to organisms previously obtained from sediment. PMID- 29027060 TI - The Mental Health of Adolescents Residing in Court-Ordered Foster Care: Findings from a Population Survey. AB - The mental health of a representative sample of 230 adolescents residing in foster care in New South Wales, Australia, was estimated in a state-wide epidemiological survey from carer-report responses on the Child Behavior Checklist (CBCL) and the Assessment Checklist for Adolescents (ACA). Rates of CBCL total problems, externalizing and internalizing scores above the borderline range cut-points were 49, 44 and 29% respectively, representing a relative risk of 3.8, 3.7 and 2.7 respectively in comparison to Australian children at large. These rates are 10-14% lower than that previously estimated for pre-adolescent Australian children in foster care. Whereas older age is associated with poorer mental health among pre-adolescent children in foster care, the present study findings suggest that this effect does not extend into adolescence. Around half of adolescents residing in foster care have mental health difficulties requiring referral to treatment services, including attachment- and trauma-related difficulties that are uncommon among clinic-referred children at large. PMID- 29027061 TI - Scleral fixated intraocular lens implantation with a modified Z-suture technique. AB - PURPOSE: To evaluate visual outcomes and complications in scleral fixated intraocular lens (IOL) implantation with the modified Z-suture technique. MATERIALS AND METHODS: Thirty-five eyes of 35 patients (20 male, 15 female) were included in the study. Patients underwent scleral fixated IOL implantation using the modified Z-suture technique and were followed in terms of visual acuity and complications. RESULTS: Mean postoperative follow-up time was 12.46 +/- 7.46 months. Mean best corrected visual acuity was 1.35 +/- 0.91 logMAR preoperatively and 0.48 +/- 0.39 logMAR postoperatively, and difference was statistically significant (p < 0.001). No suture-related complications were observed during follow-up in any of the patients. Slight infero-temporal dislocation of the IOL was observed at postoperative 5 months in one patient (2.85%) who experienced blunt trauma. It caused no optical disturbance, and repeated surgery was not advised. Transient intravitreal hemorrhage was observed in two patients (5.7%) who underwent combined scleral fixation and pupilloplasty. DISCUSSION: The modified Z-suture technique is simple, fast, and was determined to be safe in terms of complications. However, long-term outcomes should be evaluated in larger patient groups. PMID- 29027062 TI - Congenital ectropion uveae with glaucoma: a case report. AB - Congenital ectropion uveae (CEU) is a rare anomaly characterized by ectropion uveae, iris hypoplasia, iridotrabecular dysgenesis and glaucoma. The apparent ectropion uveae results from the spread of iris pigment epithelium beyond the iris ruff and onto the anterior surface of the iris. Conclusion Open-angle glaucoma results due to angle dysgenesis, so patients should be carefully examined periodically for its early detection. PMID- 29027063 TI - Inflammatory myofibroblastic tumors of the breast with simultaneous intracranial, lung, and pancreas involvement: ultrasonographic findings and a review of the literature. AB - We encountered a case of inflammatory myofibroblastic tumor (IMT) of the breast with simultaneous intracranial, lung, and pancreas involvement. Here, we present the clinical imaging results and report the significance of sonographic findings of breast IMT along with a review of the literature. A 16-year-old girl with a history of subarachnoidal hemorrhage was admitted to our hospital due to tonic clonic seizure. Computed tomography (CT) and magnetic resonance imaging (MRI) showed multiple intracranial, lung, and pancreas mass lesions and a solitary mass lesion in the right breast. Breast ultrasonography showed a circumscribed oval shaped hypoechoic mass with a central hyperechoic region. Power Doppler sonography revealed an unusual spiral-shaped flow signal. Breast tumorectomy was performed for definitive diagnosis, and pathological analysis indicated IMT. A literature review indicated that ultrasonographic findings of IMT of the breast are nonspecific, as in other systems or organs. It would be difficult to make a diagnosis of IMT of the breast preoperatively due to its rarity and the lack of specificity of clinical imaging findings. In addition, it is better to consider the possibility of IMT of the breast especially in younger patients without an obvious family history of hereditary breast cancer. PMID- 29027064 TI - Light scattering measurements in electron-beam sterilized corneas stored in recombinant human serum albumin. AB - Irradiated corneal tissues have been used for a variety of ophthalmic procedures including glaucoma drainage device covers and lamellar grafts. The maintenance of corneal clarity is important, as light obstructions resulting from processing or long-term storage of irradiated corneas may negatively affect vision and postoperative cosmesis. It has been reported that corneal tissues can be preserved in human serum albumin (HSA), however, the clarity of corneas after long-term storage in HSA has not been well described. Furthermore, the use of donor-pooled serum increases the risk for transmission of blood-borne diseases and may induce an immune response in the recipient. Here, we examined changes in corneal clarity due to electron-beam (e-beam) irradiation and storage in a recombinant human serum albumin (rHSA). Dark-field microscopy was employed to examine the light scattering effects of fresh and irradiated corneas. Compared to measurements taken prior to tissue preparation and e-beam treatment, irradiated corneas showed an average 2.6% increase in light scattering (P = 0.002). Irradiated corneas stored in rHSA at room-temperature for 20 months showed an average increase of 11.6% light scattering compared to fresh corneas (P ? 0.01), but did not negatively affect the visualization of printed text, and were deemed suitable for transplant use. Therefore, the slight increase in cornea light scattering, and resulting reduction in corneal clarity, after e-beam treatment and long-term storage in rHSA may not be clinically significant. These results suggest that e-beam sterilized corneal grafts may be used as an alternative to fresh tissue for certain ophthalmic applications. PMID- 29027065 TI - Blood coagulation parameters after intravitreal injection of aflibercept in patients with neovascular age-related macular degeneration. AB - PURPOSE: The aim of this study was to evaluate the effect of intravitreal injection of aflibercept (IVA) on blood coagulation tests in neovascular age related macular degeneration (AMD) patients. METHODS: Thirty-four patients with neovascular AMD (study group) and 32 healthy individuals (control group) were enrolled. Prothrombin time (PT) and activated partial thromboplastin time (aPTT) were measured at different times in patients with neovascular AMD. RESULTS: The levels of PT and aPTT after IVA were decreased at 1 month after the first injection and 1 month after the second injection compared to the baseline measurement in the study group. CONCLUSIONS: IVA may cause a decrease in the levels of PT and aPTT at 1 month after the first injection and 1 month after the second injection although these results are not statistically significant in our study. PMID- 29027066 TI - White Matter Microstructure of the Human Mirror Neuron System is Related to Symptom Severity in Adults with Autism. AB - Mirror neuron system (MNS) dysfunctions might underlie deficits in autism spectrum disorders (ASD). Diffusion tensor imaging based probabilistic tractography was conducted in 15 adult ASD patients and 13 matched, healthy controls. Fractional anisotropy (FA) was quantified to assess group differences in tract-related white matter microstructure of both the classical MNS route (mediating "emulation") and the alternative temporo-frontal route (mediating "mimicry"). Multiple linear regression was used to investigate structure-function relationships between MNS connections and ASD symptom severity. There were no significant group differences in tract-related FA indicating an intact classical MNS in ASD. Direct temporo-frontal connections could not be reconstructed challengeing the concept of multiple routes for imitation. Tract-related FA of right-hemispheric parieto-frontal connections was negatively related to autism symptom severity. PMID- 29027067 TI - Human heterologous liver cells transiently improve hyperammonemia and ureagenesis in individuals with severe urea cycle disorders. AB - BACKGROUND: Urea cycle disorders (UCDs) still have a poor prognosis despite several therapeutic advancements. As liver transplantation can provide a cure, liver cell therapy (LCT) might be a new therapeutic option in these patients. METHODS: Twelve patients with severe UCDs were included in this prospective clinical trial. Patients received up to six infusions of cryopreserved human heterologous liver cells via a surgically placed catheter in the portal vein. Portal vein pressure, portal vein flow, and vital signs were monitored continuously. Calcineurin inhibitors and steroids were used for immunosuppression. In four patients, ureagenesis was determined with stable isotopes. Number and severity of hyperammonemic events and side effects of immunosuppression were analyzed during an observation period of up to 2 years. RESULTS: No study-related mortality was observed. The application catheter dislocated in two children. No significant side effects of catheter application or cell infusion were noted in the other ten patients. The overall incidence of infections did not differ significantly from a historical control group, and no specific side effects of immunosuppression were found. Seven patients were treated per protocol and could be analyzed for efficacy. Severe metabolic crises could be prevented in all of these patients, moderate crises in four of seven. Ureagenesis increased after cell infusion in all patients investigated. CONCLUSIONS: We found a favorable safety profile with respect to catheter placement, intraportal liver cell infusion, and immunosuppression. More than half of the children treated per protocol experienced metabolic stabilization and could be safely bridged to liver transplantation. PMID- 29027068 TI - Array-CGH Analysis in a Cohort of Phenotypically Well-Characterized Individuals with "Essential" Autism Spectrum Disorders. AB - Copy-number variants (CNVs) are associated with susceptibility to autism spectrum disorder (ASD). To detect the presence of CNVs, we conducted an array-comparative genomic hybridization (array-CGH) analysis in 133 children with "essential" ASD phenotype. Genetic analyses documented that 12 children had causative CNVs (C CNVs), 29 children had non-causative CNVs (NC-CNVs) and 92 children without CNVs (W-CNVs). Results on clinical evaluation showed no differences in cognitive abilities among the three groups, and a higher number of ASD symptoms and of non verbal children in the C-CNVs group compared to the W-CNVs and NC-CNVs groups. Our results highlighted the importance of the array-CGH analyses and showed that the presence of specific CNVs may differentiate clinical outputs in children with ASD. PMID- 29027070 TI - Assessment of Current Genetic Counselor Practices in Post-Visit Written Communications to Patients. AB - Providing patients with post-visit written communication (PVWC) is a long standing component of genetic counseling. However the depiction of this practice in today's clinical landscape is limited. To better describe this practice, we surveyed practicing clinical genetic counselors to ask if they send post-visit communications to patients and if so, what are the types, the average length, and the average time spent writing. They were also asked the perceived purpose of providing PVWC, if/how the practice has changed over time, and factors influencing the practice. Eighty three percent (233/280) of participants reported sending patients PVWC. Of those, 93% sent at least one communication written in patient-friendly language. The type of communication varied by specialty. Prenatal genetic counselors were less likely to send patient-specific letters and hybrid letters (defined as letters with content intended for both a physician and a patient) than those in cancer genetics (p = 0.010, p = 0.001, respectively) or pediatric genetics (p = 0.001, p = 0.004, respectively). Prenatal genetic counselors spent less time on average writing post-visit communications (19.0 min) relative to those in cancer and pediatric genetics (30.6 min, p = 0.027 and 37.7 min, p = 0.001, respectively). The most commonly cited purpose for sending PVWC was to provide patients a formal account of what happened during the appointment. These data suggest PWVC are still regularly sent to patients but the practice is variable and is influenced by numerous factors including specialty, years of experience, and time constraints. PMID- 29027069 TI - Effects of perceived autonomy support and basic need satisfaction on quality of life in hemodialysis patients. AB - PURPOSE: Despite a growing understanding of health-related quality of life (HRQOL) and its determinants in hemodialysis (HD) patients, little is known about the effects and interrelationships concerning the perception of autonomy support and basic need satisfaction of HD patients on their HRQOL. Based on self determination theory (SDT), this study examines whether HD patients' perceived autonomy support from health care practitioners (physicians and nurses) relates to the satisfaction of HD patients' basic needs and in turn influences their HRQOL. METHODS: A questionnaire was administered to 250 Taiwanese HD patients recruited from multiclinical centers and regional hospitals in northern Taiwan. Structural equation modeling (SEM) analysis was conducted to examine the causal relationships between patient perceptions of autonomy support and HRQOL through basic need satisfaction. RESULTS: The empirical results of SEM indicated that the HD patients' perceived autonomy support increased the satisfaction of their basic needs (autonomy, competency, and relatedness), as expected. The higher degree of basic need satisfaction led to higher HRQOL, as measured by physical and mental component scores. CONCLUSION: Autonomy support from physicians and nurses contributes to improving HD patients' HRQOL through basic need satisfaction. This indicates that staff caring for patients with severe chronic diseases should offer considerable support for patient autonomy. PMID- 29027071 TI - The Brain's Reward Response Occurs Even Without Actual Reward! AB - What if the brain's response to reward occurs even when there is no reward? Wouldn't that be a further concern for people prone to problem gambling and other forms of addiction, like those related to eating? Electroencephalography was employed to investigate this possibility using probabilistic feedback manipulations and measures of known event-related potentials (ERPs) related to reward processing. We tested the hypothesis-that reward-based ERPs would occur even in the absence of a tangible reward and when manipulations on expectation are implicit. The well-known P300 response potential was a key focus, and was assessed in non-gambling volunteer undergraduates on a task involving experimentally-manipulated probabilities of positive or negative feedback comprising three trial types-80, 50, or 20% positive feedback. A feedback stimulus (F1) followed a guess response between two possible outcomes (implicit win/loss), and then a second feedback stimulus (F2) was presented to confirm an alleged 'win' or 'loss' (explicit win/loss). Results revealed that amplitude of the P300 in F1-locked data (implicit manipulation) was larger (more positive) on average for feedback outcomes that were manipulated to be less likely than expected. The effect is pronounced after increased time on task (later trials), even though the majority of participants were not explicitly aware of our probability manipulations. For the explicit effects in F2-locked data, no meaningful or significant effects were observed. These findings point to the existence of proposed success-response mechanisms that operate not only explicitly but also with implicit manipulations that do not involve any direct indication of a win or loss, and are not associated with tangible rewards. Thus, there seems to be a non-explicit form of perception (we call 'implicit') associated with an internal experience of wins/losses (in the absence of actual rewards or losses) that can be measured in associated brain processes. The potential significance of these findings is discussed in terms of implications for problem gambling. PMID- 29027073 TI - Typhlophoros kwenae n. sp. (Nematoda: Ascaridida: Heterocheilidae), a gastric parasite from the Nile crocodile Crocodylus niloticus Laurenti (Reptilia: Crocodylidae) in South Africa. AB - Based on light and scanning electron microscopical observations, Typhlophoros kwenae n. sp. (Heterocheilidae), a new nematode parasite, is described from the stomach of the Nile crocodile Crocodylus niloticus Laurenti in South Africa. In having three lips with well-developed posterior prolongations and prominent interlabial longitudinal cuticular ridges, four pairs of precloacal papillae and complex spicules divided into handle and broad alate blade in males, as well as the position of the vulva near mid-body in females, the specimens conform to the generic diagnosis of Typhlophoros von Linstow, 1906. They can, however, be distinguished from the two previously described congeners, T. lamellaris von Linstow, 1906 and T. spratti Sprent, 1999, by the number of complete interlabial ridges, the length of spicules in males and the position of the vulva as well as the length of the tail in females. This is the first record of the genus Typhlophoros from the Afrotropical Realm. PMID- 29027072 TI - Outcomes of acute kidney injury in a nephrology ward. AB - Acute kidney injury (AKI) is a global problem which predicts immediate and long term adverse outcomes. We evaluated the AKI progression to end-stage renal disease, as well as the mortality associated with AKI and the in-hospital readmission rate because of a cardiovascular event in AKI patients admitted in a nephrology ward. A 5-year retrospective study was set in a nephrology department, with a follow-up period of up to 8 years. In a total of 191 patients, mean age was 73.83 +/- 12.49 years, and 137 (71.7%) patients had history of chronic kidney disease. One hundred and twenty-four (65%) patients needed RRT and two (1%) needed surgery. Upon discharge, 107 (56%) patients had recovered the renal function, 41 (21.6%) patients had partial recovery, 25 (13%) patients were RRT dependent, 16 (8.4%) died, and two (1%) patients had outcomes unknown to us, because they were transferred to other hospitals. The median survival time free of RRT was 74 months. The median survival time of the followed patients was 34 months (95% CI 23.3-44.7). The mortality rate in the follow-up period in this sample was 18 deaths/100 patients-years, and the incidence of a composite cardiovascular endpoint of heart failure, acute coronary syndrome, and stroke was 6 events/100 patients-years. The mortality rate in the follow-up period was higher than usually described for patients outside intensive care unit, probably because our patients were old and had many comorbidities. PMID- 29027074 TI - Uptake of Radium-223 Dichloride and Early [18F]NaF PET Response Are Driven by Baseline [18F]NaF Parameters: a Pilot Study in Castration-Resistant Prostate Cancer Patients. AB - PURPOSE: The purpose of this study is to identify predictive factors on baseline [18F]NaF positron emission tomography (PET)/computed tomography (CT) of early response to radium-223 dichloride after 3 cycles of treatment in metastatic castration-resistant prostate cancer patients. PROCEDURES: Analysis of 152 metastases was performed in six consecutive patients who underwent [18F]NaF PET/CT at baseline and for early monitoring after 3 cycles of radium-223 dichloride. All metastases depicted on whole-body [18F]NaF PET/CT were contoured and CT (density in Hounsfield units, sclerotic, mixed, or lytic appearance) as well as [18F]NaF [maximum standardized uptake value (SUVmax), SUVmean, and lesion volume (V18F-NaF)] patterns were recorded. Tumor response was defined as percentage change in SUVmax and SUVmean between baseline and post-treatment PET. Bone lesions were defined as stable, responsive, or progressive, according to thresholds derived from a recent multicentre test-retest study in [18F]NaF PET/CT. Total [18F]NaF uptake in metastases, defined as MATV * SUVmean, was correlated to uptake of radium-223 on biodistribution scintigraphy performed 7 days after the first cycle of treatment. RESULTS: Among metastases, 116 involved the axial skeleton and 36 the appendicular skeleton. Lesions were sclerotic in 126 cases and mixed in 26 cases. No lytic lesion was depicted. ROC analysis showed that SUVmax and SUVmean were better predictors of lesion response than V18F-NaF and density on CT (P < 0.0001 and P = 0.001, respectively). SUVmax and SUVmean were predictors of individual tumor response in separate multivariate models (P = 0.01 and P = 0.02, respectively). CT pattern (mixed versus sclerotic) and lesion density were independent predictors only when assessing response with delta SUVmax (P = 0.002 and 0.007, respectively). A good correlation between total [18F]NaF uptake within metastases and their relative radium-223 uptake assessed by two observers 7 days after treatment (r = 0.72 and 0.77, P < 0.0001) was found. CONCLUSIONS: SUVmax and SUVmean on baseline [18F]NaF PET/CT are independent predictors of bone lesions' response to 3 cycles of radium-223 dichloride, supporting the use of NaF to select patients more likely to respond to treatment. PMID- 29027075 TI - Optimization of non-thermal plasma efficiency in the simultaneous elimination of benzene, toluene, ethyl-benzene, and xylene from polluted airstreams using response surface methodology. AB - Treatment with a non-thermal plasma (NTP) is a new and effective technology applied recently for conversion of gases for air pollution control. This research was initiated to optimize the efficient application of the NTP process in benzene, toluene, ethyl-benzene, and xylene (BTEX) removal. The effects of four variables including temperature, initial BTEX concentration, voltage, and flow rate on the BTEX elimination efficiency were investigated using response surface methodology (RSM). The constructed model was evaluated by analysis of variance (ANOVA). The model goodness-of-fit and statistical significance was assessed using determination coefficients (R 2 and R 2adj) and the F-test. The results revealed that the R 2 proportion was greater than 0.96 for BTEX removal efficiency. The statistical analysis demonstrated that the BTEX removal efficiency was significantly correlated with the temperature, BTEX concentration, voltage, and flow rate. Voltage was the most influential variable affecting the dependent variable as it exerted a significant effect (p < 0.0001) on the response variable. According to the achieved results, NTP can be applied as a progressive, cost-effective, and practical process for treatment of airstreams polluted with BTEX in conditions of low residence time and high concentrations of pollutants. PMID- 29027076 TI - Assessing the stability in dry mycelial fertilizer of Penicillium chrysogenum as soil amendment via fluorescence excitation-emission matrix spectra: organic matter's transformation and maturity. AB - Utilization as dry mycelial fertilizer (DMF) produced from penicillin fermentation fungi mycelium (PFFM) with an acid-heating pretreatment is a potential way. To study the transformation and stability of water-extractable organic matter in DMF-amended soil via fluorescence regional integration (FRI) of fluorescence excitation-emission matrix (EEM), a soil experiment in pot was carried out. The results showed that residual penicillin (about 32 mg/kg) was almost degraded in the first 5 days, indicating that the drug pollution was in control. The pH value, DOC, DON, and DOC/DON presented a classical profile, but germination index (GI) leveled off about 0.13 till day 13 in DMF-12% treatment due to the severe phytotoxicity. The addition of DMF significantly increased the soil microbial populations in contrast to the CON treatment. The EEM showed that the protein-like and microbial byproduct-like matters vanished on the 25th and 33rd days, whereas the fulvic-like substances appeared on the 7th day. The humic like substances existed in original samples but their content greatly enhanced finally. The FRI results showed that P V, n/P III, n reached the highest value of 1.84 on the 25th day, suggesting that DMF maintained stable in amended soil. Because of its consistency with the results of GI and DOC/DON, the EEM-FRI has a potential to evaluate the stability of DMF in soil. PMID- 29027077 TI - Optimization of Dendritic Cell-Mediated Cytotoxic T-Cell Activation by Tracking of Dendritic Cell Migration Using Reporter Gene Imaging. AB - PURPOSE: The aim of this study is to optimize the dendritic cell (DC)-mediated T cell activation using reporter gene imaging and flow cytometric analysis in living mice. PROCEDURES: A murine dendritic cell line (DC2.4) co-expressing effluc and Thy1.1 genes were established by transfection with retroviral vectors. Thy1.1 positive cells were sorted by magnetic bead separation system (DC2.4/effluc). Cell proliferation assay and phenotype analysis to determine the effects of gene transduction on the function of dendritic cells between parental DC2.4 and DC2.4/effluc were performed. To optimize the DC-mediated immune response by cell number or frequency, different cell numbers (5 * 105, 1 * 106, and 2 * 106 DC2.4/effluc) or different frequencies of DC2.4/effluc (first, second, and third injections) were injected in the right footpad of mice. The migration of the DC2.4/effluc into the draining popliteal lymph node of mice was monitored by bioluminescence imaging (BLI). Flow cytometric analysis was performed with splenocytes to determine the cytotoxic T-cell population after injection of DC2.4/effluc. RESULTS: Parental DC2.4 and DC2.4/effluc exhibit no significant differences in their proliferation and phenotype. BLI signals were observed in the draining popliteal lymph node at day 1 after injection of DC2.4/effluc in 1 * 106 and 2 * 106 cells-injected groups. The highest BLI signal intensity was detected in 2 * 106 cells-injected mice. On day 11, the BLI signal was detected in only 2 * 106 cell-injected group but not in other groups. Optimized cell numbers (2 * 106) were injected in three animal groups with a different frequency (first, second, and third injection groups). The BLI signal was detected at day 1 and maintained until day 7 in the first injection group, but there is low signal intensity in the second and the third injection groups. Although the expression levels of Thy1.1 gene in the first injection group were very high, there reveals no expression of Thy1.1 gene in the second and the third injection groups. The number of tumor-specific CD8+ T-cells in the spleen significantly increased, as the number of DC injections increases. CONCLUSIONS: Successful optimization of DC-mediated cytotoxic T-cell activation in living mice using reporter gene imaging and flow cytometric analysis was achieved. The optimization of DC-mediated cytotoxic T-cell activation could be applied for the future DC-based immunotherapy. PMID- 29027078 TI - Dynamic Scheduling for Veterans Health Administration Patients using Geospatial Dynamic Overbooking. AB - The Veterans Health Administration (VHA) is plagued by abnormally high no-show and cancellation rates that reduce the productivity and efficiency of its medical outpatient clinics. We address this issue by developing a dynamic scheduling system that utilizes mobile computing via geo-location data to estimate the likelihood of a patient arriving on time for a scheduled appointment. These likelihoods are used to update the clinic's schedule in real time. When a patient's arrival probability falls below a given threshold, the patient's appointment is canceled. This appointment is immediately reassigned to another patient drawn from a pool of patients who are actively seeking an appointment. The replacement patients are prioritized using their arrival probability. Real world data were not available for this study, so synthetic patient data were generated to test the feasibility of the design. The method for predicting the arrival probability was verified on a real set of taxicab data. This study demonstrates that dynamic scheduling using geo-location data can reduce the number of unused appointments with minimal risk of double booking resulting from incorrect predictions. We acknowledge that there could be privacy concerns with regards to government possession of one's location and offer strategies for alleviating these concerns in our conclusion. PMID- 29027079 TI - Guinea fowl (Numidia meleagris) production by small-holder farmers in Zimbabwe. AB - Guinea fowls are a source of high-value meat and eggs, and the birds are more disease resistant than other types of birds. A survey was conducted in ward 23, Chipinge district, Zimbabwe, to characterise guinea fowl management practices and to identify constraints and potential opportunities for increased guinea fowl productivity. Purposive sampling was used to select 84 out of possible 252 guinea fowl owners. Data were collected by direct observation on guinea fowl varieties, feeding strategies and housing facilities. A semi-structured questionnaire was used to collect data on farmer experiences, perceptions and common challenges encountered. A chi-squared test was conducted using the IBM SPSS Statistical Package for Social Sciences (SPSS) version 21. The study revealed that famers keep guinea fowls under free-range management. The average production indices were flock size 18 +/- 12, egg production 89 +/- 50, hatchability 63.8% and keet survival rate of 75%. Approximately 42.9% of the farmers provide supplementary feed albeit not systematically. There was a significant association between provision of supplementary feed and keet survival rate (chi 2 = 21.600, df = 2, P < 0.016) as well as provision of housing and flock size (chi 2 = 38.508, df = 3, P < 0.018). The housing provided was substandard. Major challenges faced by farmers were predation, low hatchability and lack of access to profitable markets. The provision of supplements and better housing for birds could improve guinea fowl productivity. PMID- 29027080 TI - Different expression systems resulted in varied binding properties of anti paclitaxel single-chain variable fragment antibody clone 1C2. AB - The binding properties of recombinant antibody fragments, such as affinity and specificity, determine their usefulness for therapeutic and analytical applications. Anti-paclitaxel single-chain variable fragment clone 1C2 (anti-PT scFv1C2) was expressed using Escherichia coli cell and Bombyx mori larvae expression systems. The binding characteristics of the scFvs were evaluated using indirect competitive ELISA. The linear range of binding between anti-PT scFv1C2 and paclitaxel was significantly different between the anti-PT scFv1C2s derived from E. coli (1.056-5.700 MUg/ml) and B. mori (7.813-1000 ng/ml), which indicated that different expression systems resulted in different sensitivities for paclitaxel determination. In addition, the binding specificity of anti-PT scFv1C2 varied between expression systems. This finding implied that the expression system significantly affects the binding properties of recombinant antibodies, especially antibodies against low-molecular-weight targets. PMID- 29027081 TI - Fate of triclocarban in agricultural soils after biosolid applications. AB - Triclocarban [N-(4-chlorophenyl)-N-(3,4-dichlorophenyl) urea] (TCC) is an antimicrobial agent utilized in a variety of consumer products. It is commonly released into domestic wastewaters and upon treatment, it is known to accumulate in biosolids. This study examines the occurrence of TCC in biosolids and its long term fate in biosolid-treated soils. TCC levels in the biosolids from a large waste water treatment plant (WWTP) over 2 years showed little variability at 18,800 +/- 700 ng g-1 dry wt. (mean +/- SEM). Surface soil samples (top 10 cm) were collected from 26 commercial farms located in northern VA, US that had received biosolid applications from the WWTP. Samples were grouped as farms receiving no biosolids, farms with a single biosolid application, and those receiving multiple biosolid applications from 1992 to 2006. Our results illustrate that TCC soil residues remained years after biosolid application. The two most important parameters controlling TCC topsoil concentrations were the biosolid application rate and the period since the last application. No TCC removal was observed in farms where the time since biosolid application was between 7 and 9 months. TCC concentration analyzed 7 and 8 years after biosolid applications were 45.8 +/- 6.1 and 72.4 +/- 15.3 ng g-1 dry wt., respectively, showing its persistence in soils and build-up upon multiple biosolid applications. A soil TCC half-life of 287.5 +/- 45.5 days was estimated. PMID- 29027082 TI - Factors associating with the presence of residual thrombosis after 3-month treatment of acute pulmonary embolism. AB - The present study aimed to investigate the factors associating with the presence of residual thrombosis in patients with acute pulmonary embolism (APE) after at least 3-month anticoagulant therapy. Demographic and clinical data of 180 cases in the affiliated hospital of Qingdao University from January 2005 to June 2015 were retrospectively analyzed. APE in all patients were confirmed by computed tomography pulmonary angiography (CTPA). Patients were then detected for the presence of residual thrombosis according to a second CTPA. After appropriate comparison test, multivariate logistic regression analysis was performed to identify predictors for residual thrombosis. Among 180 patients, complete clearance of thrombosis occurred in 115 (63.9%) patients. Residual thrombosis remained in 65 (36.1%) patients. The independent factors associating with residual thrombosis include unprovoked APE (OR 0.231, 95% CI 0.062-0.861) and fibrinogen level in acute phase (OR 1.958, 95% CI 1.282-2.911). Furthermore, these two variables were both associated with the presence of residual thrombosis in patients receiving different parenteral anticoagulants (unfractionated heparin or low-molecular-weight heparin). Pulmonary thrombosis in some patients with APE are not completely dissolved after at least 3-month treatment. Additionally, unprovoked APE is positive predictor of decreased residual thrombosis and fibrinogen level in acute phase is a risk factor of the presence of residual thrombosis. PMID- 29027083 TI - Objective and subjective results following implantation of the FineVision trifocal intraocular lens in Mexican patients. AB - PURPOSE: To evaluate objective and subjective results after bilateral implantation of a diffractive trifocal intraocular lens (IOL) in a Mexican population. METHODS: Prospective, interventional case series involved 15 cataract surgery patients who underwent bilateral implantation of the trifocal Micro F lens FineVision IOL (PhysIOL, Liege, Belgium). Objective analysis involved assessment of monocular uncorrected distance (UDVA), near (UNVA) at 30 and 40 cm, and intermediate visual acuity (UIVA) at 50, 60, and 70 cm, preoperatively, and at postoperative months 1, 3, and 6. Higher-order aberrations were assessed via aberrometry. Contrast sensitivity was determined via modulation transfer function. Subjective outcomes were assessed using the National Eye Institute Visual Functioning Questionnaire-25 (VFQ-25). RESULTS: At postoperative month 6, mean monocular UDVA was 0.06 +/- 0.11 logMAR, and UNVA was 0.03 +/- 0.04 logMAR at 30 cm and 0.05 +/- 0.08 logMAR at 40 cm. Mean UIVA at 50, 60, and 70 cm was 0.12 +/- 0.06, 0.13 +/- 0.08, and 0.04 +/- 0.08 logMAR, respectively. Spherical equivalent at postoperative month 3 was 0.23 +/- 0.4 diopters (D). Aberrometry revealed a mean RMS of 0.18 microm and PSF of 0.19 (Strehl ratio). VFQ-25 questionnaire results showed a mean score of 93.64 +/- 4.19 points (maximum 100 points). Vision during distance and near activities was reported as "excellent." Adverse events were reported as occurring "never to occasionally." CONCLUSION: Implantation of a diffractive trifocal IOL in a Mexican population appears safe and effective, both objectively and subjectively. Good uncorrected visual acuity outcomes were achieved at far, near, and intermediate distances. Overall patient satisfaction was excellent. PMID- 29027085 TI - Two new cytotoxic stilbenoid dimers isolated from Cajanus cajan. AB - Two new stilbenoid dimers, cajanstilbenoids A (1) and B (2), were isolated from the leaves of Cajanus cajan. Planar structures of these compounds were verified by NMR (1D and 2D) and high-resolution electrospray ionization mass spectroscopy (HR-ESI-MS). Absolute configurations were assigned by comparing experimental and calculated electronic CD values. The cytotoxicity of 1 and 2 against human hepatoma (HepG2), human breast adenocarcinoma (MCF-7), and human lung cancer (A549) cells were evaluated in vitro. Compound 1 showed strong cytotoxicity against all the tested cell lines (IC50 values: 2.14-2.56 uM), whereas compound 2 showed strong toxicity only against HepG2 (IC50 value: 5.99 uM) and A549 cells (IC50 value: 6.18 uM). PMID- 29027084 TI - Association of light-to-moderate alcohol drinking in pregnancy with preterm birth and birth weight: elucidating bias by pooling data from nine European cohorts. AB - Women who drink light-to-moderately during pregnancy have been observed to have lower risk of unfavourable pregnancy outcomes than abstainers. This has been suggested to be a result of bias. In a pooled sample, including 193 747 live-born singletons from nine European cohorts, we examined the associations between light to-moderate drinking and preterm birth, birth weight, and small-for-gestational age in term born children (term SGA). To address potential sources of bias, we compared the associations from the total sample with a sub-sample restricted to first-time pregnant women who conceived within six months of trying, and examined whether the associations varied across calendar time. In the total sample, drinking up to around six drinks per week as compared to abstaining was associated with lower risk of preterm birth, whereas no significant associations were found for birth weight or term SGA. Drinking six or more drinks per week was associated with lower birth weight and higher risk of term SGA, but no increased risk of preterm birth. The analyses restricted to women without reproductive experience revealed similar results. Before 2000 approximately half of pregnant women drank alcohol. This decreased to 39% in 2000-2004, and 14% in 2005-2011. Before 2000, every additional drink was associated with reduced mean birth weight, whereas in 2005-2011, the mean birth weight increased with increasing intake. The period-specific associations between low-to-moderate drinking and birth weight, which also were observed for term SGA, are indicative of bias. It is impossible to distinguish if the bias is attributable to unmeasured confounding, which change over time or cohort heterogeneity. PMID- 29027086 TI - The association between somatic and psychological discomfort and health-related quality of life according to the elderly and non-elderly. AB - PURPOSE: Symptoms and discomfort are common complaints in primary care settings. It has been postulated that the physical symptoms are informative index in estimating Health-related quality of life (HRQOL). Thus, we conducted a community based cross-sectional study to assess the relationship between somatic and psychological discomfort and HRQOL in elderly and non-elderly people. METHODS: A total of 2467 participants were recruited in 2013 from a population of 17,066 rural residents aged 20 or older. Information on demographic characteristics, somatic and psychological discomfort symptoms, and HRQOL was collected. Two months after the baseline survey, we conducted a repeated survey to assess changes in the discomfort symptoms and HRQOL. We evaluated associations of the discomfort symptoms with HRQOL using multiple linear regression and mixed model. RESULTS: EuroQol-Visual Analogue Scale (EQ-VAS), index of HRQOL, was correlated with fatigue, pain, sleep disturbances, indigestion, and anxiety/depression, after adjusting for covariates. However, the factors most significantly associated with EQ-VAS differed between the elderly and non-elderly. Pain was the most important factor contributing to EQ-VAS in the elderly, whereas depression and anxiety were the predominant factors in the non-elderly. These relationships were replicated in the repeated measurements to assess the change of symptoms and change of EQ-VAS. CONCLUSION: Our study suggests that somatic and psychological discomfort symptoms are associated with HRQOL. The main factors related to HRQOL vary according to age and large prospective studies and clinical trials are needed to clarify the association between specific symptoms and HRQOL according to the age. PMID- 29027087 TI - The effect of using a dielectric matching medium in focused microwave radiometry: an anatomically detailed head model study. AB - Microwave radiometry is a passive technique used to measure in-depth temperature distributions inside the human body, potentially useful in clinical applications. Experimental data imply that it may provide the capability of detecting in-depth local variations of temperature and/or conductivity of excitable tissues at microwave frequencies. Specifically, microwave radiometry may allow the real-time monitoring of brain temperature and/or conductivity changes, associated with local brain activation. In this paper, recent results of our ongoing research regarding the capabilities of focused microwave radiometry for brain intracranial applications are presented. Electromagnetic and thermal simulation analysis was performed using an anatomically detailed head model and a dielectric cap as matching medium placed around it, in order to improve the sensitivity and the focusing attributes of the system. The theoretical results were compared to experimental data elicited while exploring that the sensing depth and spatial resolution of the proposed imaging method at 2.1 GHz areas located 3 cm deep inside the brain can be measured, while at 2.5 GHz, the sensing area is confined specifically to the area of interest. The results exhibit the system's potential as a complementary brain imaging tool for multifrequency in-depth passive monitoring which could be clinically useful for therapeutic, diagnostic, and research applications. PMID- 29027088 TI - Redescription of Philometra filiformis (Stossich, 1896) (Nematoda: Philometridae), a gonad-infecting parasite of the common pandora Pagellus erythrinus (Linnaeus) (Sparidae) in the Mediterranean Sea, including new taxonomic features revealed by SEM. AB - The insufficiently known nematode species Philometra filiformis (Stossich, 1896) (Philometridae) is redescribed based on light and scanning electron microscopical (SEM) examinations of specimens collected from the ovaries of the type-host, the common pandora Pagellus erythrinus (Linnaeus) (Perciformes, Sparidae), from off the Mediterranean coast of Tunisia. The male of this species was studied with SEM for the first time, which revealed some new, taxonomically important morphological features. The male posterior end has a caudal mound consisting of two lateral parts widely separated dorsally from each other, four pairs of small adanal papillae, a pair of large but moderately developed papillae located posterior to the cloacal aperture and a pair of small phasmids. The distal end of the gubernaculum is unique among all but one gonad-infecting species of Philometra Costa, 1845 by the chevron-shaped dorsal lamellar structures forming a median longitudinal range. Philometra filiformis is for the first time reported from Tunisian coastal waters, being the seventh philometrid species so far recorded from marine fishes off Tunisia. PMID- 29027089 TI - A decade of a thrips invasion in China: lessons learned. AB - The Western flower thrips, Frankliniella occidentalis Pergande (Thysanoptera: Thripidae) is an invasive polyphagous pest with an expanding global range that damages a wide variety of crops. F. occidentalis was first reported in China from Yunnan province during 2000, and has rapidly expanded its range since then. It is currently distributed across at least 10 provinces in China and has become a particularly devastating pest, causing substantial damage and economic losses. At present, the still heavy reliance on frequent use of insecticides for control of F. occidentalis, has lead to a series of ecological problems stemming from insecticide resistance, interspecific displacement and non-target effects. Thus, integrated pest management (IPM) programmes, multiple complementary tactics, including preventive tactics, biological controls, and judicious use of insecticides will likely provide a viable IPM strategy for control of F. occidentalis in the near future. This review provides an overview for information gained during the 10+ years since the invasion of F. occidentalis into China, reviews lessons that have been learned enhancing our overall understanding of the biology and ecology of F. occidentalis and discusses IPM practices relative to this widespread invasive insect pest. PMID- 29027090 TI - Morphological and molecular data for a new species of Pomphorhynchus Monticelli, 1905 (Acanthocephala: Pomphorhynchidae) in the Mexican redhorse Moxostoma austrinum Bean (Cypriniformes: Catostomidae) in central Mexico. AB - Pomphorhynchus purhepechus n. sp. is described from the intestine of the Mexican redhorse Moxostoma austrinum Bean (Catostomidae) in central Mexico. The new species can be distinguished from the other seven described species of Pomphorhynchus Monticelli, 1905 in the Americas by a subspherical proboscis and 14 longitudinal rows with 16-18 hooks each; the third and the fourth row of hooks are alternately longest. Sequences of the mitochondrial cytochrome c oxidase subunit 1 (cox1) gene and the large subunit (LSU) rDNA (including the domains D2 D3) were used to corroborate the morphological distinction between the new species and Pomphorhynchus bulbocolli Linkins in Van Cleave, 1919, a species widely distributed in several freshwater fish species across Canada, USA, and Mexico. The genetic divergence estimated between the new species and the isolates of P. bulbocolli ranged between 13 and 14% for cox1, and between 0.6 and 0.8% for LSU. Maximum likelihood and Bayesian inference analyses of each dataset showed that the isolates of P. bulbocolli parasitising freshwater fishes from three families, the Catostomidae, Cyprinidae and Centrarchidae, represent a separate lineage, and that the acanthocephalans collected from two localities in central Mexico comprise an independent lineage. In addition, our analysis of the genetic variation of P. bulbocolli demonstrates that individuals of this acanthocephalan from different host species are conspecific. Finally, the distribution, host association, and phylogenetic relationship of the new species, when placed in the context of the region's geological history, suggest that both host and parasite underwent speciation after their ancestors became isolated in Central Mexico. PMID- 29027091 TI - Walnut supplementation reverses the scopolamine-induced memory impairment by restoration of cholinergic function via mitigating oxidative stress in rats: a potential therapeutic intervention for age related neurodegenerative disorders. AB - The brain is highly susceptible to the damaging effects of oxidative reactive species. The free radicals which are produced as a consequence of aerobic respiration can cause cumulative oxygen damage which may lead to age-related neurodegeneration. Scopolamine, the anti-muscarinic agent, induces amnesia and oxidative stress similar to that observed in the older age. Studies suggest that antioxidants derived from plant products may provide protection against oxidative stress. Therefore, the present study was designed to investigate the attenuation of scopolamine-induced memory impairment and oxidative stress by walnut supplementation in rats. Rats in test group were administrated with walnut suspension (400 mg/kg/day) for four weeks. Both control and walnut-treated rats were then divided into saline and scopolamine-treated groups. Rats in the scopolamine group were injected with scopolamine (0.5 mg/kg dissolved in saline) five minutes before the start of each memory test. Memory was assessed by elevated plus maze (EPM), Morris water maze (MWM), and novel object recognition task (NOR) followed by estimation of regional acetylcholine levels and acetylcholinesterase activity. In the next phase, brain oxidative status was determined by assaying lipid peroxidation, and measuring superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT) activities. Results showed that scopolamine-treatment impaired memory function, caused cholinergic dysfunction, and induced oxidative stress in rats compared to that saline-treated controls. These impairments were significantly restored by pre-administration of walnut. This study demonstrates that antioxidant properties of walnut may provide augmented effects on cholinergic function by reducing oxidative stress and thus improving memory performance. PMID- 29027092 TI - Toxic effects of oxytetracycline and copper, separately or combined, on soil microbial biomasses. AB - The production of commercial livestock and poultry often involves using with antibiotics and feed additives, such as oxytetracycline (OTC) and copper (Cu). These are often excreted into the soil by animal feces; hence, combined pollutants may contaminate the soil. To evaluate single and combined toxic effects of OTC and Cu on the soil ecology, changes in quantities of bacteria, fungi, and actinomycetes in the soil were studied over a 28-d incubation period by a plate count method, microbes numbers counted on days 7, 14, 21, and 28. Abundances of ammonia monooxygenase (amoA) gene expression by ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) in soil samples also were tested by real-time polymerase chain reactions (RT-PCRs) on day 21. The results revealed that the numbers of bacteria, fungi and actinomycetes and amoA genes copies of AOA and AOB were reduced seriously by exposure to Cu (1.60 mmol/kg). Similarly, the combined pollution treatments (mole ratios of OTC: Cu was 1:2, 1:8, and 1:32) also had inhibitory effect on bacteria, fungi, and actinomycetes numbers and amoA gene copies of AOA and AOB; the inhibitory rate was on obvious growth trend with the increasing mole ratios. Effects from single OTC pollution were found on bacteria (days 7 and 14), fungi (days 7, 14, 21, and 28), and AOA amoA gene copies (day 21), with promotion at a low concentration (0.05 mmol/kg) and suppression at higher concentrations (0.2 and 0.8 mmol/kg). Also, numbers of bacteria, fungi, and actinomycetes decreased with longer culture times. Combining OTC and Cu led to a higher inhibition of soil microbes than when either chemical was used alone. However, there was no significant relationship between single and combined toxic chemicals because of their complicated interactions, either antagonistic or synergistic. The results also indicated the sensitivity of bacteria, fungi, actinomycetes on toxic chemicals existed difference and that the AOA were more tolerant than the AOB to these chemicals. PMID- 29027093 TI - Long-Term Prognostic Value of Coronary Computed Tomography Angiography. AB - OPINION STATEMENT: Coronary CT angiography (CTA) is a highly accurate test for the diagnosis of coronary artery disease (CAD), with its use guided by numerous contemporary appropriate use criteria and clinical guidelines. Unique among non invasive tests for CAD, coronary CTA provides direct visualization of coronary atherosclerosis for the assessment of angiographic stenosis, as well as validated measures of plaque vulnerability. Long-term studies now clearly demonstrate that the absence of CAD on coronary CTA identifies a patient that is at very low risk for future cardiovascular events. Conversely, the presence, location, and severity of CAD as measured on coronary CTA provide powerful prognostic information that is superior to traditional risk factors and other clinical variables. Observational studies and data obtained from clinical trials suggest that the anatomic information derived from coronary CTA significantly increases the utilization of statins and aspirin. Furthermore, these changes are associated with reductions in the risk for mortality, revascularizations, and incident myocardial infarctions among subjects with coronary atherosclerosis. As a result, current societal consensus statements have attempted to standardize coronary CTA reporting, to include incorporation of vulnerable plaque features and recommendations on the use of preventive therapies, such as statins, so to more consistently link important prognostic findings on coronary CTA to appropriate preventive and therapeutic interventions. Automated measures of total coronary plaque volume, machine learning, and CT-derived fractional flow reserve may further refine the prognostic accuracy of coronary CTA. Herein, we summarize recently published literature that reports the long-term (>= 5 years of follow up) prognostic usefulness of coronary CTA. PMID- 29027094 TI - Multimodal Functional Neuroimaging by Simultaneous BOLD fMRI and Fiber-Optic Calcium Recordings and Optogenetic Control. AB - Recent developments of optogenetic tools and fluorescence-based calcium recording techniques enable the manipulation and monitoring of neural circuits on a cellular level. Non-invasive imaging of brain networks, however, requires the application of methods such as blood oxygen level-dependent (BOLD) functional magnetic resonance imaging (fMRI), which is commonly used for functional neuroimaging. While BOLD fMRI provides brain-wide non-invasive reading of the hemodynamic response, it is only an indirect measure of neural activity. Direct observation of neural responses requires electrophysiological or optical methods. The latter can be combined with optogenetic control of neuronal circuits and are MRI compatible. Yet, simultaneous optical recordings are still limited to fiber optic-based approaches. Here, we review the integration of optical recordings and optogenetic manipulation into fMRI experiments. As a practical example, we describe how BOLD fMRI in a 9.4-T small animal MR scanner can be combined with in vivo fiber-optic calcium recordings and optogenetic control in a multimodal setup. We present simultaneous BOLD fMRI and calcium recordings under optogenetic control in rat. We outline details about MR coil configuration, choice, and usage of opsins and chemically and genetically encoded calcium sensors, fiber implantation, appropriate light power for stimulation, and calcium signal detection, to provide a glimpse into challenges and opportunities of this multimodal molecular neuroimaging approach. PMID- 29027095 TI - Multimodality Imaging of Pericardial Diseases. AB - OPINION STATEMENT: Pericardial diseases have changed their epidemiology in the past few years. With the aging population and decreasing incidence of communicable diseases, the causes of pericardial diseases have significantly changed from infectious and malignant to postradiation and cardiac surgery causes. Despite that, pericardial diseases remain difficult to diagnose. The accurate and timely diagnosis of these diseases is essential to avoid the late sequela of pericardial constriction and pericardial cirrhosis. Echocardiography remains the first test of choice for the assessment of patients with suspected pericardial diseases. Most patients with acute pericarditis have a self-limiting course and do not need further imaging. However, in the era of multimodality imaging, other modalities, namely, computed tomography (CT) and magnetic resonance imaging (CMR), are often utilized in complex cases. These two modalities provide a wide-open view of the pericardium and adjacent structures. They have high resolution to assess pericardial calcification, a hallmark of many diseases especially tuberculous constrictive pericarditis. CMR is also unique in its ability to assess pericardial late gadolinium enhancement (LGE) and edema. These have been recently suggested to be very important in the progression from acute pericarditis to constrictive pericarditis. In addition, they provide prognostic value to assess which patients are at high risk of developing heart failure and resource utilization. Thus, in the current era, patients with suspected complex pericardial diseases will need a multimodality approach rather than a single modality approach. PMID- 29027096 TI - New Innovations in Drug-Eluting Stents for Peripheral Arterial Disease. AB - PURPOSE OF REVIEW: The purpose of this paper was to provide a review of the burden of peripheral arterial disease; to examine older therapies and their limitations; and especially to highlight new treatment innovations as well as the data supporting their use. RECENT FINDINGS: Building on the success of paclitaxel in the prevention of restenosis in the peripheral circulation, the newest generation drug-eluting stent is presented, which combines paclitaxel with a polymer-allowing the drug to be eluted slowly over 12 months. The positive results of the pilot MAJESTIC study led to the ongoing IMPERIAL trial. Limited data of bioresorbable scaffolds in above and below-the-knee applications are also reviewed. Endovascular therapy of peripheral arterial disease has had many advances in the preceding two decades. However, drug-eluting stent technology has had the greatest impact to date and holds great promise for the future. PMID- 29027097 TI - High number of newly initiated direct oral anticoagulant users switch to alternate anticoagulant therapy. AB - Real-world evidence focusing on medication switching patterns amongst direct oral anticoagulant (DOACs) has not been well studied. The objective of this study is to evaluate patterns of prescription switching in non-valvular atrial fibrillation (NVAF) patients initiated on a DOAC and previously naive to anticoagulation (AC) therapy. Data was obtained from Truven Health MarketScan(r) Commercial and Medicare Supplemental database (2009-2013). AC naive (those without prior anticoagulant use) NVAF patients initiated on a DOAC, with 6 months of continuous health plan enrollment before and after treatment initiation and maintained on continuous therapy for a minimum of 6 months were included. Of 34,022 AC naive NVAF patients initiating a DOAC, 6613 (19.4%) patients switched from an index DOAC prescription to an alternate anticoagulant and 27,409 (80.6%) remained on the DOAC [age: 68.5 +/- 11.7 vs. 67.1 +/- 12.7 years, p < 0.001; males: 3781 (57.2%) vs. 17,160 (62.6%), p < 0.001]. Amongst those that switched medication, 3196 (48.3%) did so within the first 6 months of therapy. Overall, 2945 (44.5%) patients switched to warfarin, 2912 (44.0%) switched to another DOAC and 756 (11.4%) switched to an injectable anticoagulant. The highest proportion of patients switched from dabigatran to warfarin (N = 2320; 42.5%) or rivaroxaban (N = 2252; 41.3%). The median time to switch from the index DOAC to another DOAC was 309.5 days versus 118.0 days (p < 0.001) to switch to warfarin. In NVAF patients newly initiated on DOAC therapy, one in five patients switch to an alternate anticoagulant and one of every two patients do so within the first 6 months of therapy. Switching from an initial DOAC prescription to traditional anticoagulants occurs as frequently as switching to an alternate DOAC. PMID- 29027098 TI - Voluntary feed intake and growth performance of slow-growing pigs fed on increasing levels of ensiled potato hash meal. AB - The objective of the study was to determine voluntary feed intake and growth performance of Windsnyer pigs fed on increasing levels of potato hash silage meal. Thirty-six growing Windsnyer pigs (19 kg +/- 5.59) (mean +/- standard deviation (SD)) were individually and randomly assigned to six experimental diets containing 0, 80, 160, 240, 320 and 400 g/kg DM of potato hash silage. Diets containing the potato hash silage were formulated using diet dilution method from 0 g/kg and 400 g/kg. Six pigs were fed on each diet ad libitum for 6 weeks. Average daily feed intake (ADFI), average daily gain (ADG), gain to feed (G/F) ratio, scaled feed intake (SFI) and scaled average daily gain (SADG) were measured weekly. Increasing levels of potato hash silage caused a decrease (P < 0.05) in ADG, G/F ratio and SADG. The ADFI interacted significantly (P < 0.05) with the inclusion level of potato hash silage and week of feeding. Pigs fed on 240 g/kg potato hash silage had greater ADFI in the second, third and fourth week of feeding. There was a quadratic increase (P < 0.05) in ADFI. There was a linear decrease (P < 0.05) in ADG and G/F ratio and SADG as the potato hash silage level increased. Using piecewise regression, potato hash silage can be included up to 240 g/kg DM in Windsnyer pigs without undermining growth performance. PMID- 29027099 TI - Risk factor of bronchopleural fistula after general thoracic surgery: review article. AB - OBJECTIVE: The aim of this article was to clarify recent risk factors for the early bronchopleural fistula after anatomical lung resection. METHODS: Reports on early bronchopleural fistula after anatomical lung resection in adults, including information on risk factors, published between 2006 and 2016 were reviewed and our institutional data were evaluated. The early period was defined as within 30 days from surgery or as described early in the manuscript. RESULTS: A total of seven retrospective observational articles were selected. Four articles investigated lobectomy and pneumonectomy, while the other three articles investigated only pneumonectomy. The surgical procedure, preoperative therapy, complications after surgery, right side, patient age, past history, and tumor residuals were mentioned as risk factors of bronchopleural fistula. Our data concluded that neoadjuvant therapy and a right lower lobe location were risk factors after a lobectomy, while a right side and complete pneumonectomy were risk factors after a pneumonectomy. CONCLUSIONS: Although recent studies have reached nearly the same conclusions as older reports, continuous research of potential risk factor is needed as therapeutic procedures continue to evolve. PMID- 29027100 TI - CORR Insights(r): Does the Risk of Rerevision Vary Between Porous Tantalum Cups and Other Cementless Designs After Revision Hip Arthroplasty? PMID- 29027101 TI - Reply to the Letter to the Editor: Editorial: Do Orthopaedic Surgeons Belong on the Sidelines at American Football Games? PMID- 29027103 TI - Letter to the Editor: Editorial: Do Orthopaedic Surgeons Belong on the Sidelines at American Football Games? PMID- 29027102 TI - Current Status of the Female Athlete Triad: Update and Future Directions. AB - PURPOSE OF REVIEW: This review provides an update on the primary clinical sequelae of the Female Athlete Triad. RECENT FINDINGS: Scientific advancements have contributed to improve understanding of Triad-related conditions, including leptin's role as a potential neuroendocrine link between energy status and reproductive function. Use of finite element analysis of HRpQCT imaging has provided a more accurate assessment of bone geometry and bone strength and may be clinically relevant. New perspectives aimed at developing and implementing a multi-disciplinary, personalized approach in the prevention and early treatment of triad-related symptoms are provided. The Female Athlete Triad is a multi dimensional condition that affects active women across the lifespan. Energy availability impacts reproductive function and bone with implications for health and performance. Understanding the contributions of each individual component as well as their interconnected effects is necessary for progression and expansion of the Triad literature. PMID- 29027104 TI - Cloning, Expression, and Production of Xylo-Oligosaccharides by Using a Newly Screened Xylanase Isolated from Bovine Rumen. PMID- 29027105 TI - Post-mortem human cadaver scavenging by marine crustaceans (Isopoda: Cirolanidae) in tropical waters. AB - Animal feeding, both ante- and post-mortem, in freshwater and marine environments, has become topical recently. This report documents post-mortem scavenging by two identified species of marine crustaceans (Crustacea: Isopoda: Cirolanidae) on a human cadaver from the vicinity of Darwin, Northern Territory, Australia. PMID- 29027106 TI - Fas- and Mitochondria-Mediated Signaling Pathway Involved in Osteoblast Apoptosis Induced by AlCl3. AB - Aluminum (Al) is known to induce apoptosis of osteoblasts (OBs). However, the mechanism is not yet established. To investigate the apoptotic mechanism of OBs induced by aluminum trichloride (AlCl3), the primary OBs from the craniums of fetal Wistar rats were exposed to 0 mg/mL (control group, CG), 0.06 mg/mL (low dose group, LG), 0.12 mg/mL (mid-dose group, MG), and 0.24 mg/mL (high-dose group, HG) AlCl3 for 24 h, respectively. We observed that AlCl3 induced OB apoptosis with the appearance of apoptotic morphology and increase of apoptosis rate. Additionally, AlCl3 treatment activated mitochondrial-mediated signaling pathway, accompanied by mitochondrial membrane potential (DeltaPsim) depolarization, release of cytochrome c from the mitochondria to the cytoplasm, as well as survival signal-related factor caspase-9 and caspase-3 activation. AlCl3 exposure also activated Fas/Fas ligand signaling pathway, presented as Fas, Fas ligand, and Fas-associated death domain expression enhancement and caspase-8 activation, as well as the hydrolysis of Bid to truncated Bid, suggesting that the Fas-mediated signaling pathway might aggravate mitochondria-mediated OB apoptosis through hydrolyzing Bid. Furthermore, AlCl3 exposure inhibited Bcl-2 protein expression and increased the expressions of Bax, Bak, and Bim in varying degrees. These results indicated that AlCl3 exposure induced OB apoptosis through activating Fas- and mitochondria-mediated signaling pathway and disrupted B-cell lymphoma-2 family proteins. PMID- 29027107 TI - Viral factors for HBV mother-to-child transmission. AB - Chronic hepatitis B virus (HBV) remains a leading cause of cirrhosis and hepatocellular carcinoma worldwide. Because chronic hepatitis B infection is rarely eradicated, preventing mother-to-child transmission (MTCT) is the most effective strategy to eliminate HBV globally. Although immunoprophylaxis strategy is widely available and effective for infants born to mothers with chronic hepatitis B infection, postnatal immunoprophylaxis fails in approximately 5-10 % of infants, and this failure rate goes up to 30 % in infants born to highly viremic mothers. Mothers with HBV DNA levels above 200,000 IU/mL should be managed aggressively with antiviral therapy because viral load is the strongest independent risk factor for immunoprophylaxis failure. Emerging data suggest that initiation of antiviral therapy in late pregnancy in highly viremic mothers can prevent immunoprophylaxis failure in their infants. Reducing viral load to target levels below 200,000 IU/mL at delivery is a practical approach to control MTCT. This review focuses on viral factors in mothers associated with MTCT. PMID- 29027109 TI - Scenarios to manage the hepatitis C disease burden and associated economic impact of treatment in Turkey. AB - BACKGROUND: Hepatitis C virus (HCV) infection is a significant health problem. The aim of this study is to evaluate the cost-effectiveness of HCV treatment and estimate its economic burden in Turkey. METHODS: An Excel-based disease progression model was used to estimate the HCV-infected population for 2015-2030. Direct costs in US dollars (USD) including diagnostic, laboratory, and healthcare costs were provided by experts in the country. Indirect costs were estimated as lost productivity using the World Health Organization (WHO) disability-adjusted life years (DALYs) metric from the Global Burden of Disease study. Three scenarios were developed to estimate the cost-effectiveness of HCV treatment through 2030: Base 2016, Increase Treatment and SVR (where SVR is sustained virological response), and WHO Targets. Additionally, the WHO Targets scenario was assessed at three different treatment price points: 10,900 USD, 16,730 USD (base cost), and 27,285 USD. RESULTS: Cumulative total direct and indirect costs (2015-2030) for the WHO Targets scenario were estimated to be 10.8 billion USD, or a 1.5 % increase compared with Base 2016. However, by the following decade, due to a marked decline in DALYs, cumulative direct and indirect costs were estimated to be 45 % less when compared with Base 2016. At a threshold of 9125 USD, all scenarios were cost-effective. CONCLUSIONS: By implementing the WHO Targets scenario, Turkey would be able to lower HCV prevalence by 80 % and reduce the total number of liver-related deaths by >65 % by 2030. Treating HCV infection in the country is cost-effective if healthcare and indirect costs are taken into consideration. PMID- 29027108 TI - Prognostic value of genetic mutations in adolescent and young adults with acute myeloid leukemia. AB - Clinical outcomes and the genetic background of acute myeloid leukemia (AML) in adolescent and young adults (AYAs) are known to differ in younger children and older adults. To clarify the impact of genetic mutations on clinical outcomes of AYAs with AML, we analyzed data from the JPLSG AML-05 and JALSG AML201 studies. AYAs aged 15-39 years (n = 103) were included. FLT3-ITD, KIT, CEBPA, NRAS, KRAS, WT1, MLL-PTD, and NPM1 mutations were analyzed. Overall survival (OS) of the AYAs was 61% and event-free survival was 38% at 3 years. FLT3-ITD (HR 2.10; 95% CI 1.07-4.12; p = 0.031) and NPM1 (HR 0.24; 95% CI 0.06-1.00; p = 0.050) mutations were associated with risk of overall mortality in multivariate analysis. OS was significantly different according to FLT3-ITD and NPM1 mutation status (p = 0.03). Survival was 100% with NPM1 mutations in the absence of FLT3-ITD and 35% (95% CI 14-57%) with FLT3-ITD in the absence of NPM1 mutations. The OS of AYAs, children (n = 413) and older adults (n = 124) of the AML-05 and AML201 participants were significantly different (p < 0.0001). This is the first report to combine clinical and genetic data of AYA AML from the major Japanese pediatric and adult study groups. PMID- 29027110 TI - Predicting the cancer burden in Catalonia between 2015 and 2025: the challenge of cancer management in the elderly. AB - BACKGROUND: Developing effective cancer control programmes requires information on the future cancer burden in an ageing population. In our study we predicted the burden of cancer in Catalonia from 2015 to 2025. METHODS: Bayesian age-period cohort models were used to predict the burden of cancer from 2015 to 2025 using incidence data from the Girona and Tarragona cancer registries and cancer mortality data from the Catalan mortality registry. Using the Bashir-Esteve method, we divided the net change in the number of cases between 2015 and 2025 into changes due to population size (S), cancer risk (R) and age (A) distribution. RESULTS: By 2025, there will be 21,743 new cancer cases in men (40% aged > 74 years) and 17,268 in women (37% aged > 74 years). More than 40% of the new cases will be diagnosed among population aged 74 and older in prostate, colorectal, lung, bladder, pancreatic and stomach cancers in men, and in colorectal, pancreatic and bladder cancers and leukaemia in women. During 2015 2025, the number of new diagnoses will increase by 5.5% in men (A + R + S = 18.1% - 13.3% + 0.7% = 5.5%) and 11.9% in women (A + R + S = 12.4% - 1.1% + 0.6% = 11.9%). Overall cancer mortality rates will continue to decrease during 2015 2025. Lung cancer will be the most lethal cancer among men (N = 2705) and women (N = 1174). CONCLUSIONS: The increase in the number of cancer cases in Catalonia from 2015 to 2025 will mostly affect the elderly, prompting the need for increased collaboration between geriatricians and oncologists. PMID- 29027111 TI - Excessive D1 Dopamine Receptor Activation in the Dorsal Striatum Promotes Autistic-Like Behaviors. AB - The dopamine system has been characterized in motor function, goal-directed behaviors, and rewards. Recent studies recognize various dopamine system genes as being associated with autism spectrum disorder (ASD). However, how dopamine system dysfunction induces ASD pathophysiology remains unknown. In the present study, we demonstrated that mice with increased dopamine functions in the dorsal striatum via the suppression of dopamine transporter expression in substantia nigra neurons or the optogenetic stimulation of the nigro-striatal circuitry exhibited sociability deficits and repetitive behaviors relevant to ASD pathology in animal models, while these behavioral changes were blocked by a D1 receptor antagonist. Pharmacological activation of D1 dopamine receptors in normal mice or the genetic knockout (KO) of D2 dopamine receptors also produced typical autistic like behaviors. Moreover, the siRNA-mediated inhibition of D2 dopamine receptors in the dorsal striatum was sufficient to replicate autistic-like phenotypes in D2 KO mice. Intervention of D1 dopamine receptor functions or the signaling pathways related D1 receptors in D2 KO mice produced anti-autistic effects. Together, our results indicate that increased dopamine function in the dorsal striatum promotes autistic-like behaviors and that the dorsal striatum is the neural correlate of ASD core symptoms. PMID- 29027113 TI - Anemia and hypogammaglobulinemia caused by Menetrier's disease. PMID- 29027114 TI - Trends in the clinical stage distribution of breast cancer in Osaka, Japan. AB - We examined the proportion of screen-detected breast cancer cases and clinical stage distribution by age group among female breast cancer cases in Osaka, Japan using population-based cancer registry from the period 1980 to 2012. The proportion of local cases increased and that of regional cases decreased gradually during the study period. The proportion of distant cases leveled off. The proportion of in situ cases increased rapidly after 2003. This increase was noticeable for women aged 30-39, 40-49, 50-59, and 60-69 years. The proportion of in situ cases for women aged 40-49, 50-59, and 60-69 years reached 15.4, 11.3, and 9.9% in 2010-2012, respectively. Regarding screening status, the proportion of screen-detected cases before 1988 was under 3%. Between 1989 and 2003, it leveled off at around 5%. After 2003, the proportion increased noticeably, and reached 25.4%:34.0% in aged 40-49 years, 32.8% in aged 50-59 years, and 26.7% in aged 60-69 years. The increase in local cases and decrease in regional cases would be due to awareness of breast cancer, probably a result of developments in medical diagnostic technology. On the other hand, the steep increase of in situ cases might be due to screening. We need careful monitoring of the trends in breast cancer incidence by clinical stage. PMID- 29027112 TI - Field Synopsis and Re-analysis of Systematic Meta-analyses of Genetic Association Studies in Multiple Sclerosis: a Bayesian Approach. AB - To provide an up-to-date summary of multiple sclerosis-susceptible gene variants and assess the noteworthiness in hopes of finding true associations, we investigated the results of 44 meta-analyses on gene variants and multiple sclerosis published through December 2016. Out of 70 statistically significant genotype associations, roughly a fifth (21%) of the comparisons showed noteworthy false-positive rate probability (FPRP) at a statistical power to detect an OR of 1.5 and at a prior probability of 10-6 assumed for a random single nucleotide polymorphism. These associations (IRF8/rs17445836, STAT3/rs744166, HLA/rs4959093, HLA/rs2647046, HLA/rs7382297, HLA/rs17421624, HLA/rs2517646, HLA/rs9261491, HLA/rs2857439, HLA/rs16896944, HLA/rs3132671, HLA/rs2857435, HLA/rs9261471, HLA/rs2523393, HLA-DRB1/rs3135388, RGS1/rs2760524, PTGER4/rs9292777) also showed a noteworthy Bayesian false discovery probability (BFDP) and one additional association (CD24 rs8734/rs52812045) was also noteworthy via BFDP computation. Herein, we have identified several noteworthy biomarkers of multiple sclerosis susceptibility. We hope these data are used to study multiple sclerosis genetics and inform future screening programs. PMID- 29027115 TI - Correlation between MRI and hip arthroscopy in children with Legg-Calve-Perthes disease. AB - BACKGROUND: Most of the information available about Legg-Calve-Perthes disease (LCPD) at present is gained through imaging modalities including plain radiographs and magnetic resonance imaging (MRI). But the accuracy of MRI in this disease and its predictive value to reveal various intra-articular pathologies is not known. We correlated the findings of MRI with those seen on hip arthroscopy in children with active stage of LCPD. METHODS: We conducted a prospective observational study in which MRI findings were correlated with corresponding findings on hip arthroscopy in a cohort of 25 patients of active LCPD below 12 years of age. The parameters noted on MRI included status of ligamentum teres, status of the labrum, synovial effusion if any, condition of the femoral and acetabular articular cartilage including chondral flaps, chondral indentation and intra-articular loose bodies. The indication of performing hip arthroscopy was persistent severe hip pain (Wong-Baker FACES pain scale >= 3) after 6 months of conservative management. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were calculated for MRI considering arthroscopy as a gold standard. RESULTS: Synovial effusion was seen in a large number of patients on both MRI (17) and hip arthroscopy (24). The sensitivity (95% confidence interval) of MRI was found to be low, especially with respect to labral tears [25% (0.63-80.6)] and intra-articular loose bodies [20% (0.51 71.6)]. NPV for synovial effusion was also found to be low [12.5% (0.32-52.7)], although specificity and PPV of MRI were found to be good for all the parameters. CONCLUSIONS: MRI cannot be completely relied upon for identifying all the intra articular pathologies in children with LCPD, although it has a good complimentary role. In patients with severe persistent pain with suspicion for joint changes, hip arthroscopy can provide a safe and efficient procedure (better than MRI) for eliciting the associated joint pathology. PMID- 29027118 TI - Genetic Variation of pln Loci Among Probiotic Lactobacillus plantarum Group Strains with Antioxidant and Cholesterol-Lowering Ability. AB - In the present study, 14 different plantaricin-encoding genes of pln loci were studied and compared to available sequences from public domain database of probiotic Lactobacillus plantarum strains. Based upon the presence and absence of selected genes, pln locus was grouped into eight clusters. Further, quantitative real-time PCR (qRT-PCR) analysis for seven genes has discriminated the complex pln locus into five types which includes WCFS1 (in Lactobacillus plantarum subsp. plantarum MCC 2976 and MCC 2974 and Lactobacillus paraplantarum MCC 2978), closely related to J51 (in Lb. paraplantarum MCC 2973 and MCC 2977), J23 (in Lb. plantarum MTCC 5422), NC8 (in Lb. paraplantarum MTCC 9483), and a new E1 type (in Lb. plantarum subsp. plantarum E1). It was observed that the plnA, EF, NC8betaalpha, NC81F, NC8HK, and G were expressed in E1 strain. Further, southern hybridization confirmed the chromosome-encoded plantaricin in Lb. plantarum group (LPG) strains. Several PCR assays and DNA sequence analysis of the regions amplified in pln loci of E1 isolate suggested a hybrid variant of NC8 and J51 plantaritypes. This indicates the wide distribution of plantaricin with remarkable variation, diversity, and plasticity among the LPG strains of vegetable origin. Further, the selected strains were able to reduce the growth of Kocuria rhizophila ATCC 9341 by 40-54% within 6 h of co-incubation under in vitro pathogen exclusion assay. These isolates also possessed cholesterol-lowering and antioxidant activity suggesting their application in the development of functional foods. PMID- 29027117 TI - Immature platelet fraction (IPF) as a predictive value for thrombopoietic recovery after allogeneic stem cell transplantation. AB - We consecutively examined the utility of measurements of percentage of immature platelet fraction (IPF%) and absolute IPF number (A-IPF) in predicting thrombopoietic recovery in 15 adult patients who underwent allogeneic hematopoietic stem cell transplantation (allo-SCT). Four patients were excluded from the evaluation due to insufficient data. Platelet count and IPF were measured by Sysmex XN-1000 (XN), a newer generation analyzer. First, we confirmed that platelet count measured by XN was more accurate than by XE-2100 (XE). IPF measurement was effective to predict the recovery in 7 of the 11 patients examined. Moreover, IPF measurement, especially IPF% measurement, suggested accelerated platelet turnover in two patients who failed to achieve platelet recovery by day 60. In addition to IPF%, A-IPF showed a complementary role on the prediction of thrombopoietic recovery. The increase in IPF% was only transient, while A-IPF values showed lasting increase during platelet recovery. In two patients (cases 6 and 7) an increase in A-IPF, but not in IPF%, was observed during platelet recovery. Our data suggest that IPF% and A-IPF measured by XN are useful for the prediction of thrombopoietic recovery and the assessment of pathogenesis of thrombocytopenia in patients after allo-SCT. PMID- 29027116 TI - Effect of Intracoronary and Intravenous Melatonin on Myocardial Salvage Index in Patients with ST-Elevation Myocardial Infarction: a Randomized Placebo Controlled Trial. AB - Melatonin has attenuated myocardial ischemia reperfusion injury in experimental studies. We hypothesized that the administration of melatonin during acute myocardial reperfusion improves myocardial salvage index in patients with ST elevation myocardial infarction. Patients (n = 48) were randomized in a 1:1 ratio to intracoronary and intravenous melatonin (total 50 mg) or placebo. The myocardial salvage index assessed by cardiac magnetic resonance imaging at day 4 (+/- 1 day) after primary percutaneous coronary intervention was similar in the melatonin group (n = 22) at 55.3% (95% CI 47.0-63.6) and the placebo group (n = 19) at 61.5% (95% CI 57.5-65.5), p = 0.21. The levels of high-sensitive troponin T, creatinine kinase myocardial band, and oxidative biomarkers (advanced oxidation protein products, malondialdehyde, myeloperoxidase) were similar in the groups. The frequency of clinical events at 90 days did not differ between the groups. In conclusion, melatonin did not improve the myocardial salvage index after primary percutaneous coronary intervention in patients with ST elevation myocardial infarction compared with placebo. PMID- 29027119 TI - Mollugin enhances the osteogenic action of BMP-2 via the p38-Smad signaling pathway. AB - Bone morphogenetic protein 2 (BMP-2) has been used clinically to encourage bone regeneration; although, there can be major side effects with larger doses. Therefore, there is a need to identify new small molecules to potentiate the osteogenic action of BMP-2. In this study, we investigated the effect of mollugin on bone formation in murine bi-potential mesenchymal progenitor C2C12 cells by combination with BMP-2. We found mollugin could enhance the BMP-2-mediated osteoblast differentiation of C2C12 cells. This was accompanied by the induction of other osteogenic BMPs. We also found the enhancing potential of mollugin may involve activation of the p38-Smad1/5/8 signaling axis. Furthermore, mollugin promoted skeletal development in zebrafish. The combination of BMP-2 with small molecules, including mollugin, could minimize its clinical limitations, and these molecules might lead to the development of effective stem cell stimulants for bone regeneration and fracture healing. PMID- 29027121 TI - Harnessing the Effect of pH on Lipid Production in Batch Cultures of Yarrowia lipolytica SKY7. AB - The objective of this research was to investigate the kinetics of lipid production by Yarrowia lipolytica SKY7 in the crude glycerol-supplemented media with and without the control of pH. Lipid and citric acid production were improved with the pH control condition. There was no significant difference observed in the biomass concentration with or without the pH control. In the pH controlled experiments, the biomass and lipid concentration reached 18 and 7.78 g/L, (45.5% w/w), respectively, with lipid yield (Yp/s) of 0.179 g/g at 60 h of fermentation. The lipid production was directly correlated with growth and the process was defined as growth associated. After 60 h of fermentation, the lipid degradation was noticed in the pH-controlled reactor whereas it occurred after 84 h in the pH-uncontrolled reactor. Apart from lipid, citric acid was produced as the major extracellular product in both fermentations but the much lower concentration in uncontrolled pH. Based on the experimental results, it is evident that controlling the pH will enhance the lipid production by 15% compared to pH-uncontrolled fermentation. PMID- 29027122 TI - Hi1a as a Novel Neuroprotective Agent for Ischemic Stroke by Inhibition of Acid Sensing Ion Channel 1a. AB - Strokes are the second-leading cause of death worldwide, and the cellular and molecular mechanisms underlying stroke-induced brain damage are still uncertain. The present therapy for acute ischemic stroke is limited to thrombolysis with the recombinant tissue plasminogen activator (rtPA). However, rtPA has a narrow therapeutic timeframe of 3-4.5 h, and only approximately 5% of stroke patients can benefit from rtPA treatment. Neuroprotective agents, such as N-methyl-D aspartate receptor antagonists, have shown great promise in preclinical studies. However, due to a limited therapeutic time window and/or intolerable side effects, they have failed in clinical trials. Extending the time window and reducing side effects for neuroprotective drugs against strokes are critical for effective therapy for stroke patients. A recent study published in Proceedings of the National Academy of Sciences by Irene R. Chassagnon et al. (2017) indicates that Hi1a, a disulfide-rich spider venom peptide, is a highly neuroprotective agent in both in vitro and in vivo studies against experimental stroke. Hi1a reveals neuroprotection through inhibition of acid-sensing ion channel 1a. Thus, Hi1a might be a promising neuroprotective agent to protect the brain from ischemic injury in humans. PMID- 29027120 TI - Elucidating the Preadipocyte and Its Role in Adipocyte Formation: a Comprehensive Review. AB - Adipogenesis is a complex process whereby the multipotent adipose-derived stem cell is converted to a preadipocyte before terminal differentiation into the mature adipocyte. Preadipocytes are present throughout adult life, exhibit adipose fat depot specificity, and differentiate and proliferate from distinct progenitor cells. The mechanisms that promote preadipocyte commitment and maturation involve numerous protein factor regulators, epigenetic factors, and miRNAs. Detailed characterization of this process is currently an area of intense research and understanding the roles of preadipocytes in tissue plasticity may provide insight into novel approaches for tissue engineering, regenerative medicine and treating a host of obesity-related conditions. In the current study, we analyzed the current literature and present a review of the characteristics of transitioning adipocytes and detail how local microenvironments influence their progression towards terminal differentiation and maturation. Specifically, we detail the characterization of preadipocyte via surface markers, examine the signaling cascades and regulation behind adipogenesis and cell maturation, and survey their role in tissue plasticity and health and disease. PMID- 29027123 TI - Pluripotent stem cells secrete Activin A to improve their epiblast competency after injection into recipient embryos. AB - It is not fully clear why there is a higher contribution of pluripotent stem cells (PSCs) to the chimera produced by injection of PSCs into 4-cell or 8-cell stage embryos compared with blastocyst injection. Here, we show that not only embryonic stem cells (ESCs) but also induced pluripotent stem cells (iPSCs) can generate F0 nearly 100% donor cell-derived mice by 4-cell stage embryo injection, and the approach has a "dose effect". Through an analysis of the PSC-secreted proteins, Activin A was found to impede epiblast (EPI) lineage development while promoting trophectoderm (TE) differentiation, resulting in replacement of the EPI lineage of host embryos with PSCs. Interestingly, the injection of ESCs into blastocysts cultured with Activin A (cultured from 4-cell stage to early blastocyst at E3.5) could increase the contribution of ESCs to the chimera. The results indicated that PSCs secrete protein Activin A to improve their EPI competency after injection into recipient embryos through influencing the development of mouse early embryos. This result is useful for optimizing the chimera production system and for a deep understanding of PSCs effects on early embryo development. PMID- 29027125 TI - A survey of modulated radiotherapy use in Australia & New Zealand in 2015. AB - A survey of radiation oncology medical physics departments across Australia and New Zealand was conducted to assess the usage, commissioning and quality assurance of modulated radiotherapy techniques such as IMRT and VMAT. Survey responses were collected in April-May 2015 to snapshot current practice and historical implementation. The survey asked 142 questions, and is the most detailed survey of its kind published to date. Analysis of results at overall department level, as well as sub-analysis for different equipment and techniques in use, was performed. Results show a high prevalence of IMRT and VMAT in use, and demonstrate the large heterogeneity in clinical practice and experience across the region. PMID- 29027124 TI - TAK1 inhibition ameliorates survival from graft-versus-host disease in an allogeneic murine marrow transplantation model. AB - Acute graft-versus-host disease (GVHD) is a major cause of morbidity and mortality in allogeneic hematopoietic cell transplantation (allo-HCT). Majority of the current immunosuppressive strategies targeting donor T cells to prevent or treat acute GVHD are only partially effective, and often require escalated immunosuppressive therapy. Recent studies have revealed that activation of antigen-presenting cells in the proinflammatory milieu is important for the priming and promotion of GVHD. This activation is mediated by innate immune signaling pathways, which therefore potentially represent new targets in addressing GVHD. Using gene expression analysis of peripheral monocytes from patients' post-allo-HCT, we detected an upregulation of TGF-beta-activated kinase 1 (TAK1), a key regulator of the toll-like receptor signaling pathway. 5Z-7 oxozeaenol, a selective inhibitor of TAK1, reduced proinflammatory cytokine production by activated monocytes under lipopolysaccharide stimulation and T cell proliferation in allogeneic-mixed leukocyte reactions with monocyte-derived dendritic cells. In an experimental mouse model of GVHD, 5Z-7-oxozeaenol administration after allo-HCT ameliorated GVHD severity and mortality, with significant reduction in serum TNFalpha, IL-1beta, and IL-12 levels. Our findings suggest that altering the activation status of innate immune cells by TAK1 inhibition may be a novel therapeutic approach for acute GVHD. PMID- 29027126 TI - Etiology and Risk Factors Determining Poor Outcome of Severe Pneumonia in Under Five Children. AB - OBJECTIVES: To determine the etiology of severe pneumonia (pneumonia with chest indrawing) in under-five children, and to study the risk factors for poor outcomes viz., 'treatment failure', 'need for change in antibiotics', 'prolonged hospital stay', 'need for mechanical ventilation' and 'mortality.' METHODS: Children (age 2 mo to 5 y) with pneumonia and chest drawing were enrolled prospectively from October 2012 through September 2013. Clinical history was recorded, and examination, anthropometry and investigations (including chest X ray, blood culture and nasopharyngeal swab culture) were performed. Children were managed as per standard guidelines, and recovery outcomes were recorded in form of 'treatment failure' (defined as persistence of features of severe pneumonia after 72 h or worsening of clinical condition before 72 h), need for change of antibiotics and prolonged (>5 d) hospital stay. The associations between the clinical, anthropometric and diagnostic risk factors and the recovery outcomes were evaluated by univariate and multivariate logistic regression analysis. RESULTS: Out of 120 children enrolled in the study, 36 (42%) were culture positive (nasopharyngeal/blood); most common bacteria isolated were Streptococcal pneumoniae and Staphylococcal aureus, respectively. Treatment failure was seen in 15 (12.5%), 34 (28.3%) needed change of antibiotics, and 50 (41.6%) children required prolonged hospitalization. Low birth weight, overcrowding, general danger signs (lethargy/unable to drink), clinical rickets, crepitation, leukocytosis and positive blood culture were significant risk factors for treatment failure, prolonged hospital stay and antibiotics change. On multivariate logistic regression analysis, respiratory rate of >70/min (OR 19.94, 95%CI 1.42-280.29), lethargy/unconsciousness (OR 114.2, 95%CI 3.14-4147.92), and positive blood culture (OR 15.24, 95%CI 2.53-91.67) had more chances of treatment failure. Duration of hospital stay was prolonged in those who had inability to drink (OR 3.89, CI 1.37-10.99) or abnormal chest X-ray (OR 8.45, CI 3.56-20.04). Children with rickets (OR 3.69, CI 1.14-11.96), and those with abnormal chest X ray (OR 9.66, CI 2.62-35.53) had a higher odds of change in antibiotics. Presence of wheeze was a protective factor for treatment failure (OR 0.03, CI 0.00-0.37) and change of antibiotics (OR 0.24, CI 0.07-0.74). CONCLUSIONS: Staphylococcus aureus and Streptococcus pneumoniae are the predominant organisms causing severe pneumonia in our setting. Children with risk factors such as respiratory rate >70/min, rickets, lethargy/unconsciousness, not able to drink, abnormal chest X ray or positive blood culture are likely to have a delayed recovery or need of change of antibiotics, whereas those with wheeze are likely to recover faster with less chances of treatment failure. PMID- 29027127 TI - Use of Supplementary Patient Education Material Increases Treatment Adherence and Satisfaction Among Acne Patients Receiving Adapalene 0.1%/Benzoyl Peroxide 2.5% Gel in Primary Care Clinics: A Multicenter, Randomized, Controlled Clinical Study. AB - INTRODUCTION: Poor adherence to acne treatment may lead to unnecessary treatments, increased healthcare costs, and reduced quality of life (QoL). This multicenter study evaluated the effect of supplementary patient education material (SEM) (a short video, information card, and additional information available online) on treatment adherence and satisfaction among acne patients treated with the fixed-dose combination adapalene 0.1%/benzoyl peroxide 2.5% gel (A/BPO) in primary care clinics versus (1) standard-of-care patient education (SOCPE) (package insert and oral instruction) and (2) SOCPE plus more frequent clinic visits. METHODS: Subjects with acne were randomized to receive once-daily A/BPO for 12 weeks plus (1) SEM in addition to SOCPE; (2) SOCPE only with two additional visits; or (3) SOCPE only. Other assessments included a subject appreciation questionnaire, a physician questionnaire, and safety. RESULTS: Ninety-seven subjects were enrolled. At baseline, most (87.6%) had mild to moderate acne. Better adherence was observed in the A/BPO + SEM group compared with A/BPO + more visits or A/BPO alone [mean 63.1%, 48.2% (p = 0.0206), and 56.5%, respectively]. The A/BPO + SEM group had more subjects with greater than 75% adherence (45%, 30.4%, and 25%, respectively). According to the subject appreciation questionnaire, the SEM was more helpful to adhere to treatment (56.7%) versus more visits (32.3%) and A/BPO alone (15.2%), better use the product (70%, 61.3%, and 54.5%, respectively), and better manage skin irritation (53.3%, 48.4%, and 36.4%, respectively). All physicians were satisfied with the SEM and 90% would consider using it in their practice. Safety assessment showed fewer treatment-related adverse events in the A/BPO + SEM group. CONCLUSION: Use of the SEM may increase adherence of acne patients treated with once-daily A/BPO gel in primary care, consequently improving treatment and QoL in the long term. FUNDING: Nestle Skin Health-Galderma R&D. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02307266. PMID- 29027128 TI - Continuous Infusion Versus Intermittent Bolus of Beta-Lactams in Critically Ill Patients with Respiratory Infections: A Systematic Review and Meta-analysis. AB - BACKGROUND: Critically ill patients display altered pharmacokinetics and pharmacodynamics and are more likely to be infected with more resistant pathogens. Beta-lactam antibiotics exhibit time-dependent pharmacodynamics; therefore, it is postulated that continuous infusion (CI) may optimize these parameters. OBJECTIVE: To perform a systematic review and meta-analysis of the available literature comparing CI versus intermittent bolus (IB) of beta-lactam antibiotics in critically ill adult patients with respiratory infections to determine if clinical benefits exist. METHODS: PubMed, EMBASE, and Web of Science were searched. Thirteen randomized controlled trials were included in the meta analyses of clinical cure and/or mortality. Four retrospective studies reporting clinical cure and/or mortality, and 11 studies that reported pharmacokinetic/pharmacodynamic parameters were included in the systematic review. RESULTS: The majority of patients in both groups maintained the percentage of time the free drug concentration exceeded the minimum inhibitory concentration (%fT > MIC) targets throughout the treatment, with differences favoring CI being more prevalent when the MIC of the offending pathogen increased. CI of beta-lactam antibiotics in critically ill adult patients with respiratory infections significantly improved clinical cure rates when compared to IB (risk ratio [RR] 1.177; 95% CI 1.065-1.300). No significant differences in mortality rates were seen when patients were treated with either dosing modality (RR 0.845; 95% CI 0.644-1.108). CONCLUSIONS: CI of beta-lactam antibiotics is associated with better cure rates and higher %fT > MIC when administered to critically ill patients with respiratory infections, but may be most beneficial in severely ill patients with more resistant Gram-negative bacterial infections. PMID- 29027129 TI - Protein-Glass Surface Interactions and Ion Desalting in Electrospray Ionization with Submicron Emitters. AB - Theta glass electrospray emitters can rapidly mix solutions to investigate fast reactions that occur as quickly as 1 MUs, but emitters with submicron tips have the unusual properties of desalting protein ions and affecting the observed abundances of some proteins as a result of protein-surface interactions. The role of protein physical properties on ion signal was investigated using 1.7 +/- 0.1 MUm and 269 +/- 7 nm emitters and 100 mM aqueous ammonium acetate or ammonium bicarbonate solutions. Protein ion desalting occurs for both positive and negative ions. The signal of a mixture of proteins with the 269 nm tips is time dependent and the order in which ions of each protein is observed is related to the expected strengths of the protein-surface interactions. These results indicate that it is not just the high surface-to-volume ratio that plays a role in protein adsorption and reduction or absence of initial ion signal, but the small diffusion distance and extremely low flow rates of the smaller emitters can lead to complete adsorption of some proteins and loss of signal until the adsorption sites are filled and the zeta potential is significantly reduced. After about 30 min, signals for a protein mixture from the two different size capillaries are similar. These results show the advantages of submicron emitters but also indicate that surface effects must be taken into account in experiments using such small tips or that coating the emitter surface to prevent adsorption should be considered. Graphical Abstract. PMID- 29027130 TI - Quality Issues Identified During the Evaluation of Biosimilars by the European Medicines Agency's Committee for Medicinal Products for Human Use. AB - The aim of this study was to identify trends in deficiencies raised during the EU evaluation of the quality part of dossiers for marketing authorisation applications of biosimilar medicinal products. All adopted day 120 list of questions on the quality module of 22 marketing authorisation applications for biosimilars submitted to the European Medicines Agency and concluded by the end of October 2015 was analysed. Frequencies of common deficiencies identified were calculated and summarised descriptions included. Frequencies and trends on quality deficiencies were recorded and presented for 22 biosimilar applications. Thirty-two 'major objections' for 9 products were identified from 14 marketing authorisation applications with 15 raised for drug substance and 17 for drug product. In addition, 547 'other concerns' for drug substance and 495 for drug product were also adopted. The frequencies and trends of the identified deficiencies together with their impact were discussed from a regulatory perspective and how these impact key manufacturing processes and key materials used in the production of biosimilars. This study provides an insight to the regulatory challenges prospective companies need to consider when developing biosimilars; it also helps elucidate common pitfalls in the development and production of biosimilars and in the submission of dossiers for their marketing authorisations. The results are expected to be of interest to pharmaceutical companies but also to regulators to obtain consistent information on medicinal products based on transparent rules safeguarding the necessary pharmaceutical quality of medicinal products. PMID- 29027131 TI - Selective BET Protein Inhibition with Apabetalone and Cardiovascular Events: A Pooled Analysis of Trials in Patients with Coronary Artery Disease. AB - BACKGROUND: Inhibition of bromodomain and extra-terminal (BET) proteins can modulate lipoprotein and inflammatory factors that mediate atherosclerosis. The impact of the BET inhibitor, apabetalone, on cardiovascular events is unknown. OBJECTIVE: Our objective was to investigate the impact of apabetalone on cardiovascular event rates in a pooled analysis of clinical studies in patients with established coronary artery disease. METHODS: We conducted a pooled analysis of patients (n = 798) with coronary artery disease who participated in clinical trials (ASSERT, ASSURE, SUSTAIN) that evaluated the impact of 3-6 months of treatment with apabetalone on lipid parameters and coronary atherosclerosis. The incidence of major adverse cardiovascular events (death, myocardial infarction, coronary revascularization, hospitalization for cardiovascular causes) in the treatment groups was evaluated. RESULTS: At baseline, patients treated with apabetalone were more likely to be Caucasian, have a history of dyslipidemia, and be undertreated with beta-blocker and anti-platelet agents. Treatment with apabetalone produced the following dose-dependent changes compared with placebo: increases in apolipoprotein A-I (apoA-I) of up to 6.7% (P < 0.001), increases in high-density lipoprotein cholesterol (HDL-C) of up to 6.5% (P < 0.001), increases in large HDL particles of up to 23.3% (P < 0.001), and decreases in high sensitivity C-reactive protein (hsCRP) of - 21.1% (P = 0.04). Apabetalone treatment did not affect atherogenic lipoproteins compared with placebo. Patients treated with apabetalone experienced fewer major adverse cardiovascular events than those treated with placebo (5.9 vs. 10.4%; P = 0.02), a finding that was more prominent in patients with diabetes (5.4 vs. 12.7%; P = 0.02), with baseline HDL-C < 39 mg/dl (5.5 vs. 12.8%; P = 0.01), or with elevated hsCRP levels (5.4 vs. 14.2%; P = 0.02). CONCLUSION: Pooled analysis of short-term studies demonstrated fewer cardiovascular events among patients treated with the BET protein inhibitor, apabetalone, than among those treated with placebo. BET protein inhibition warrants further investigation as a novel approach to cardiovascular risk reduction. PMID- 29027133 TI - Combination of a chemopreventive agent and paclitaxel in CD44-targeted hybrid nanoparticles for breast cancer treatment. AB - The CD44 receptor, which is upregulated in many cancer cells, provides a selective cellular surface for targeted drug delivery systems. We developed a hybrid nanocarrier for the CD44-targeted delivery of ibuprofen (IBU) and paclitaxel (PTX). The solid lipid nanoparticles (SLNs) were prepared by a hot melt oil/water emulsion technique and then coated with hyaluronic acid (HA) by electrostatic interactions. The final SLN were spherical with a hydrodynamic diameter (Z) of 72.16 +/- 2.9 nm, polydispersity index (PDI) of 0.276 +/- 0.009, and zeta potential (ZP) of 28.20 +/- 0.69 mV. Similarly, SLN coated with HA (SLN HA) exhibited acceptable physical properties (Z 169.3 +/- 0.55 nm, PDI 0.285 +/- 0.004, and ZP - 10.5 +/- 0.15 mV). Cell viability assays showed that the combination of IBU, a chemopreventive agent, and PTX exerted a synergistic inhibitory effect on the proliferation of cancer cells (CI < 1.0). Additionally, our observations indicated that both SLN and SLN-HA enhanced apoptosis and cellular uptake compared to the cocktail of free drugs. HA indicated its affinity for cancer cells through the improvement of cellular uptake and induction of apoptosis. These results clearly indicated that these nanoparticle systems hold great promise for drug delivery in breast cancer treatment. PMID- 29027132 TI - Submicrometer Emitter ESI Tips for Native Mass Spectrometry of Membrane Proteins in Ionic and Nonionic Detergents. AB - Native mass spectrometry (native-MS) of membrane proteins typically requires a detergent screening protocol, protein solubilization in the preferred detergent, followed by protein liberation from the micelle by collisional activation. Here, submicrometer nano-ESI emitter tips are used for native-MS of membrane proteins solubilized in both nonionic and ionic detergent solutions. With the submicrometer nano-ESI emitter tips, resolved charge-state distributions of membrane protein ions are obtained from a 150 mM NaCl, 25 mM Tris-HCl with 1.1% octyl glucoside solution. The relative abundances of NaCl and detergent cluster ions at high m /z are significantly reduced with the submicrometer emitters compared with larger nano-ESI emitters that are commonly used. This technique is beneficial for significantly decreasing the abundances (by two to three orders of magnitude compared with the larger tip size: 1.6 MUm) of detergent cluster ions formed from aqueous ammonium acetate solutions containing detergents that can overlap with the membrane protein ion signal. Resolved charge-state distributions of membrane protein ions from aqueous ammonium acetate solutions containing ionic detergents were obtained with the submicrometer nano-ESI emitters; this is the first report of native-MS of membrane proteins solubilized by ionic detergents. Graphical Abstract. PMID- 29027135 TI - Does Coenzyme Q10 Supplementation Mitigate Statin-Associated Muscle Symptoms? Pharmacological and Methodological Considerations. AB - Statin drugs markedly reduce low-density lipoprotein cholesterol and consequently the incidence of cardiac events. In approximately 5-10% of adults, these drugs are associated with a range of muscle side effects such as muscle pain, cramping and weakness. Reduction in mitochondrial coenzyme Q10 (CoQ10), or ubiquinone, has been proposed as a mechanism for these statin-associated muscle symptoms (SAMS), and thus various formulations of CoQ10 are marketed and consumed for the prevention and treatment of SAMS. However, data supporting the efficacy of CoQ10 are equivocal, with some studies showing that CoQ10 supplementation reduces the incidence and severity of SAMS and others finding no beneficial effects of supplementation. Methodological and pharmacological issues may confound interpretation of data on this topic. For example, many patients who report SAMS, such as those who have been enrolled in previous CoQ10 studies, may be experiencing non-specific (non-statin-associated) muscle pain. In addition, the effectiveness of oral CoQ10 supplementation to increase mitochondrial CoQ10 in human skeletal muscle is not well established. This manuscript will critically evaluate the published data on the efficacy of CoQ10 supplements in the prevention and treatment of SAMS. PMID- 29027134 TI - Topical thermal therapy with hot packs suppresses physical inactivity-induced mechanical hyperalgesia and up-regulation of NGF. AB - We focused on the analgesic effect of hot packs for mechanical hyperalgesia in physically inactive rats. Male Wistar rats were randomly divided into four groups: control, physical inactivity (PI), PI + sham treatment (PI + sham), and PI + hot pack treatment (PI + hot pack) groups. Physical inactivity rats wore casts on both hind limbs in full plantar flexed position for 4 weeks. Hot pack treatment was performed for 20 min a day, 5 days a week. Although mechanical hyperalgesia and the up-regulation of NGF in the plantar skin and gastrocnemius muscle were observed in the PI and the PI + sham groups, these changes were significantly suppressed in the PI + hot pack group. The present results clearly demonstrated that hot pack treatment was effective in reducing physical inactivity-induced mechanical hyperalgesia and up-regulation of NGF in plantar skin and gastrocnemius muscle. PMID- 29027136 TI - Oligonol promotes glucose uptake by modulating the insulin signaling pathway in insulin-resistant HepG2 cells via inhibiting protein tyrosine phosphatase 1B. AB - Insulin resistance and protein tyrosine phosphatase 1B (PTP1B) overexpression are strongly associated with type 2 diabetes mellitus (T2DM), which is characterized by defects in insulin signaling and glucose intolerance. In a previous study, we demonstrated oligonol inhibits PTP1B and alpha-glucosidase related to T2DM. In this study, we examined the molecular mechanisms underlying the anti-diabetic effects of oligonol in insulin-resistant HepG2 cells. Glucose uptake was assessed using a fluorescent glucose tracer, 2-[N-(7-nitrobenz-2-oxa-1,3-diazol-4 yl)amino]-2-deoxyglucose, and the signaling pathway was investigated by western blotting. Oligonol significantly increased insulin-provoked glucose uptake and decreased PTP1B expression, followed by modulation of ERK phosphorylation. In addition, oligonol activated insulin receptor substrate 1 by reducing phosphorylation at serine 307 and increasing that at tyrosine 895, and enhanced the phosphorylations of Akt and phosphatidylinositol 3-kinase. Interestingly, it also reduced the expression of two key enzymes of gluconeogenesis (glucose 6 phosphatase and phosphoenolpyruvate carboxykinase), attenuated oxidative stress by scavenging/inhibiting peroxynitrite, and reactive oxygen species (ROS) generation, and augmented the expression of nuclear factor kappa B. These findings suggest oligonol improved the insulin sensitivity of insulin-resistant HepG2 cells by attenuating the insulin signaling blockade and modulating glucose uptake and production. Furthermore, oligonol attenuated ROS-related inflammation and prevented oxidative damage in our in vitro model of type 2 diabetes. These result indicate oligonol has promising potential as a treatment for T2DM. PMID- 29027137 TI - Cubic Liquid Crystalline Gels Based on Glycerol Monooleate for Intra-articular Injection. AB - In situ gels containing sinomenine hydrochloride (SMH) for intra-articular (IA) administration to treat rheumatoid arthritis (RA) were designed and investigated in this study. Glycerol monooleate (GMO) was used due to the potential to generate viscous crystalline phase structures upon water absorption. The gels were evaluated using different parameters: syringeability, gelation, viscosity, and drug release. And, polarized light microscopy (PLM), small-angle X-ray scattering investigation (SAXS), and rheological studies were used to analyze their internal structures. In vitro drug release studies were performed by the dialysis membrane diffusion method. The syringeability, viscosity, gelation time, and water for gelation of the obtained preparation met the requirements of IA injection. PLM, SAXS, and rheological analysis showed that all samples had transformed from flowable isotropic solution phases to the inverse cubic (V2) phases upon excess water. And, the gels were found to be able to maintain the drug release for more than 1 week. Results showed that in situ gels based on GMO liquid crystalline could provide a sustained system for SMH. Due to its sustained release, the in situ cubic gels were suitable for IA injection to treat RA. PMID- 29027139 TI - Correction to: Compositional Changes in Foliage Phenolics with Plant Age, a Natural Experiment in Boreal Forests. AB - The article Compositional Changes in Foliage Phenolics with Plant Age, a Natural Experiment in Boreal Forests, written by Hilde Karine Wam, Caroline Stolter and Line Nybakken, was originally published electronically on the publisher's internet portal (currently SpringerLink) on August 29, 2017 without open access. PMID- 29027138 TI - Recurrence of Optimally Treated Malignant Peritoneal Mesothelioma with Cytoreduction and Heated Intraperitoneal Chemotherapy. AB - BACKGROUND: The prognosis for patients with diffuse malignant peritoneal mesothelioma has dramatically improved with cytoreductive surgery and intraperitoneal chemotherapy. Little is known about disease recurrence after treatment. We analyzed the time to and predictors of recurrence in a large cohort of optimally treated patients. METHODS: We examined 113 patients completing a two stage cytoreduction and intraperitoneal chemotherapy protocol. All patients achieved optimal surgical resection with completeness of cytoreduction (CC) score <= 1 and were divided into two groups based on absence (Group A) or presence (Group B) of gross disease at the outset of the second operation. Predictors of disease recurrence and recurrence-free survival (RFS) were determined using Cox proportional hazard regression modeling, and estimates were obtained by using the Kaplan-Meier method. RESULTS: Forty-six percent of patients had no gross evidence of disease at the second operation; the remaining 54% were cytoreduced to CC <= 1 (Group B). Forty-two percent of patients developed disease recurrence with a median recurrence-free survival of 38.5 months for the cohort; 79% of these received a form of iterative treatment. There was no statistically significant difference in recurrence-free survival between Group A (median RFS: 44.6 months) and B (median RFS: 35.5 months) (log-rank test, p = 0.06). Additionally, the only variable significantly associated with RFS was male gender (hazard ratio [HR] 1.98, 95% confidence interval [CI] 1.16-3.38). CONCLUSIONS: Absence of gross disease at the second operation was not statistically protective against recurrence compared with presence of quantifiable residual disease (Group B) that was effectively cytoreduced. Long-term disease surveillance is recommended, because recurrence continues years after treatment. Where a question of recurrence arises on surveillance, males may benefit from a higher degree of suspicion. PMID- 29027140 TI - Biosafety and Antibacterial Ability of Graphene and Graphene Oxide In Vitro and In Vivo. AB - In recent years, graphene (G) and graphene oxide (GO) nanoparticles have begun to be applied in surgical implant surface modification. However, biosafety and antibacterial ability of G and GO are still unclear. In this study, the biosafety of G and GO in vitro was evaluated by co-culture with bone marrow mesenchymal stem cells (BMSCs) and biosafety in vivo was observed by implanting materials into mice muscle tissue. Biosafety results showed that 10 MUg/ml was the safety critical concentration for G and GO. When the concentration was more than 10 MUg/ml, the cytotoxicity of G and GO showed a dose-dependent manner.Antibacterial results showed that G presented the antibacterial ability with the concentration equal to and more than 100 MUg/ml; GO presented the antibacterial ability with the concentration equal to and more than 50 MUg/ml. The antibacterial effect of G and GO were in a dose-dependent manner in vitro.The GO or G concentration between 50 and 100 MUg/ml may be the better range to keep the balance of cytotoxicity and antibacterial ability. Our study reveals that G and GO have potential to be used in clinic with good biosafety and antibacterial properties in a certain concentration range. PMID- 29027142 TI - 55th Annual Symposium of the International Society for Clinical Electrophysiology of Vision (ISCEV 2017). PMID- 29027144 TI - Erratum to: Quantitative physiology and elemental composition of Kluyveromyces lactis CBS 2359 during growth on glucose at different specific growth rates. AB - In the original publication of the article, the below mentioned errors have appeared. The correct text is provided in this erratum, In the abstract section, the sentence "This dataset serve" should be replaced as "This dataset serves". Also, the reference "Basso TO, Gomes FS, Lopes ML, et al (2014) Homo- and heterofermentative lactobacilli differently affect sugarcane-based fuel ethanol fermentation. Antonie Van Leeuwenhoek 105:169-177. doi: 10.1007/s10482-013-0063-6 " should be replaced as "Basso TO, Dario MG, Tonso A, Stambuk BU, Gombert AK (2010) Insufficient uracil supply in fully aerobic chemostat cultures of Saccharomyces cerevisiae leads to respiro-fermentative metabolism and double nutrient-limitation. Biotechnol Lett 32:973-977. doi: 10.1007/s10529-010-0248-2 ". Finally, in the Table 2 footnote, "according to (Heijnen 1981)" should be replaced as "according to Heijnen (1981)". PMID- 29027146 TI - Correction to: JSH guideline for tumors of hematopoietic and lymphoid tissues lukemia: 4. Chronic myelogenous leukemia (CML)/myeloproliferative neoplasms (MPN). AB - In the original publication of this article, the "Acknowledgements" was not included and it is given below for your reading. PMID- 29027145 TI - Novel Biocompatible Au Nanostars@PEG Nanoparticles for In Vivo CT Imaging and Renal Clearance Properties. AB - Nanoprobes are rapidly becoming potentially transformative tools on disease diagnostics for a wide range of in vivo computed tomography (CT) imaging. Compared with conventional molecular-scale contrast agents, nanoparticles (NPs) promise improved abilities for in vivo detection. In this study, novel polyethylene glycol (PEG)-functionalized Au nanoparticles with star shape (AuNS@PEG) with strong X-ray mass absorption coefficient were synthesized as CT imaging contrast agents. Experimental results revealed that AuNS@PEG nanoparticles are well constructed with ultrasmall sizes, effective metabolisability, high computed tomography value, and outstanding biocompatibility. In vivo imaging also showed that the obtained AuNS@PEG nanoparticles can be efficiently used in CT-enhanced imaging. Therefore, the synthesized contrast agent AuNS@PEG nanoparticles as a great potential candidate can be widely used for CT imaging. PMID- 29027147 TI - Antonio J. Torres, MD, PhD. PMID- 29027148 TI - Safety of Russian-Backbone Trivalent, Live Attenuated Seasonal Influenza Vaccine in Healthy Subjects: Open-Label, Non-randomized Phase 4 Study. AB - INTRODUCTION AND AIM: A trivalent live attenuated influenza vaccine (Nasovac S(r)) was developed and licensed in India. A phase 4 study was conducted to assess safety. METHODOLOGY: This non-randomized, open-label, single-arm study among individuals >= 2 years of age involved administration of 0.5 mL of Nasovac S intranasally, with a 1-month follow-up after vaccination. Adverse events (AEs) were collected via structured diaries. RESULTS: Among 500 vaccinated subjects, 160 were between 2 and 17 years of age, 240 were 18-49 years old and 100 were 50 years and older. A total of 533 solicited reactions were reported. The majority of these reactions were mild, and almost all of them resolved without any sequelae. A total of 20% of subjects reported at least one local solicited reaction, and 23% reported at least one systemic solicited reaction. None of the 45 unsolicited AEs reported by 37 subjects (7.4%) were causally related to the study vaccine. CONCLUSIONS: The data from the study adds to the existing safety database of Nasovac-S. REGISTRY: Clinical Trials Registry of India (CTRI/2015/08/006074). PMID- 29027150 TI - Obituary: Giovanni Davi (1948-2017). PMID- 29027149 TI - Sequencing Larger Intact Proteins (30-70 kDa) with Activated Ion Electron Transfer Dissociation. AB - The analysis of intact proteins via mass spectrometry can offer several benefits to proteome characterization, although the majority of top-down experiments focus on proteoforms in a relatively low mass range (<30 kDa). Recent studies have focused on improving the analysis of larger intact proteins (up to ~75 kDa), but they have also highlighted several challenges to be addressed. One major hurdle is the efficient dissociation of larger protein ions, which often to do not yield extensive fragmentation via conventional tandem MS methods. Here we describe the first application of activated ion electron transfer dissociation (AI-ETD) to proteins in the 30-70 kDa range. AI-ETD leverages infrared photo-activation concurrent to ETD reactions to improve sequence-informative product ion generation. This method generates more product ions and greater sequence coverage than conventional ETD, higher-energy collisional dissociation (HCD), and ETD combined with supplemental HCD activation (EThcD). Importantly, AI-ETD provides the most thorough protein characterization for every precursor ion charge state investigated in this study, making it suitable as a universal fragmentation method in top-down experiments. Additionally, we highlight several acquisition strategies that can benefit characterization of larger proteins with AI-ETD, including combination of spectra from multiple ETD reaction times for a given precursor ion, multiple spectral acquisitions of the same precursor ion, and combination of spectra from two different dissociation methods (e.g., AI-ETD and HCD). In all, AI-ETD shows great promise as a method for dissociating larger intact protein ions as top-down proteomics continues to advance into larger mass ranges. Graphical Abstract ?. PMID- 29027151 TI - Comparison of Different Ion Mobility Setups Using Poly (Ethylene Oxide) PEO Polymers: Drift Tube, TIMS, and T-Wave. AB - Over the years, polymer analyses using ion mobility-mass spectrometry (IM-MS) measurements have been performed on different ion mobility spectrometry (IMS) setups. In order to be able to compare literature data taken on different IM(-MS) instruments, ion heating and ion temperature evaluations have already been explored. Nevertheless, extrapolations to other analytes are difficult and thus straightforward same-sample instrument comparisons seem to be the only reliable way to make sure that the different IM(-MS) setups do not greatly change the gas phase behavior. We used a large range of degrees of polymerization (DP) of poly(ethylene oxide) PEO homopolymers to measure IMS drift times on three different IM-MS setups: a homemade drift tube (DT), a trapped (TIMS), and a traveling wave (T-Wave) IMS setup. The drift time evolutions were followed for increasing polymer DPs (masses) and charge states, and they are found to be comparable and reproducible on the three instruments. ?. PMID- 29027152 TI - Correction to: Reducing surgical site infections following total hip and knee arthroplasty: an Israeli experience. AB - In the original article, one of the co-author's family name has been published incorrectly. PMID- 29027153 TI - Conflicting Data on the Incidence of Leukopenia and Neutropenia After Heated Intraperitoneal Chemotherapy with Mitomycin C. AB - BACKGROUND: During heated intraperitoneal chemotherapy (HIPEC), neutropenia rates of 20 to 40% have been reported when mitomycin C (MMC) is dosed by weight or body surface area (BSA). This study investigated the authors' HIPEC experience using a fixed 40-mg dose of MMC, per consensus guidelines, and analyzed predictors for severe leukopenia and neutropenia. METHODS: Patients who underwent MMC-HIPEC from 2007 to 2016 at a single tertiary care center were retrospectively reviewed. RESULTS: Among 314 MMC-HIPEC cases, 72 patients in the early era of the authors' program received routine prophylactic postoperative granulocyte-colony stimulating factor (GCSF). This early cohort had five severe leukopenic reactions and one neutropenic reaction. In the subsequent 242 cases without GCSF prophylaxis, severe leukopenia developed in 16 patients (7%), with neutropenia occurring in 11 (4.5%) of these cases. A history of prior systemic chemotherapy was noted in 9 (56%) of the 16 leukopenic patients compared with 112 (46%) of the patients who had no leukopenia (nonsignificant difference). The median nadir of leukopenia was 5 days (range 1-11 days). Of the 11 neutropenic patients, 6 received therapeutic GCSF, and 5 recovered without intervention. The 30-day postoperative mortality of the patients with leukopenia was 0%. CONCLUSION: In this study, the incidence of neutropenia after HIPEC with 40 mg of MMC was markedly lower than reported in the literature for doses adjusted by BSA or weight. The authors report that GCSF is not necessary for routine prophylaxis of all MMC-HIPEC patients. The findings suggest that a fixed 40-mg dose of MMC allows HIPEC to be performed with less risk of immunosuppression. PMID- 29027155 TI - The role of T-cell immunoglobulin mucin-3 and its ligand galectin-9 in antitumor immunity and cancer immunotherapy. AB - Cancer treatment in the past few years has been transformed by a new kind of therapy that targets the immune system instead of the cancer itself to reinvigorate antitumor immunity with astonishing results. However, primary and acquired resistance to this type of treatment, namely immune checkpoint blockade (ICB), continue to counter treatment efficacy. In many cases, resistance has been attributed to defective or chronically enhanced interferon signaling and/or upregulation of alternative immune checkpoints, including T-cell immunoglobulin mucin-3 (Tim-3) and its ligand galactin-9 (Gal-9). In this article, we briefly describe the current knowledge of common checkpoint resistance mechanisms, focusing on the Tim-3/Gal-9 pathway as an alternative checkpoint that holds great promise as another target for ICB. PMID- 29027156 TI - Mapping bone marrow niches of disseminated tumor cells. AB - Breast cancer cells may disseminate early, before tumor diagnosis. Disseminated tumor cells, or DTCs, reside in the bone marrow, and may persist for years or even decades. Some of these cells may be re-activated to resume aggressive growth, and eventually become overt bone metastases. Recent studies have begun to shed light on this complicated process and revealed multiple steps and intermediate states of colonizing DTCs. However, how cancer-host interactions evolve during this process needs to be further understood. Most of our current knowledge of the bone microenvironment is obtained through studies looking for the hematopoietic stem cell (HSC) niche. Although this long-standing question has not yet been resolved, our search for the HSC niche has resulted in a detailed map of various cell types in the bone marrow. Furthermore, various techniques used to find the HSC niche may also be adapted for finding the cancer cell niche. In this article, we will review the recent progress in both the DTC and HSC areas with a focus on their potential microenvironment niches. We will also discuss how to apply what we have learned from HSC studies to map DTCs in the bone context. We hope to stimulate thoughts and ideas to further elucidate the bone colonization process, and develop potential therapeutic interventions. PMID- 29027158 TI - ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency. AB - BACKGROUND: Implant stability testing at various stages of implant therapy by means of resonance frequency analysis is extensively used. The overall measurement outcome is a function of the resulting stiffness of three entities: surrounding bone, bone-implant complex, and implant-Smartpeg complex. The influence of the latter on the overall measurement results is presently unknown. It can be investigated in vitro by use of imbedded implants with mounted Smartpegs. This enables to keep the influence of the two other entities constant and controlled. The purpose of this study is to verify if a laboratory laser Doppler vibrometry technology-based procedure results in comparable ISQ results after calculation of captured resonance frequency spectra by aid of the Osstell algorithm with direct Osstell IDX device measurements. METHODS: A laboratory procedure was engineered to record frequency spectra of resin-imbedded test implants with mounted Smartpegs, after electromagnetic excitation with the Osstell IDX device and laser Doppler vibrometry response detection. Fast Fourier transformation data processing of resonance frequency data resulted in determination of a maximum resonance frequency values allowing calculation of implant stability quotient (ISQ) values using the Osstell algorithm. RESULTS: Laboratory-based ISQ values were compared to Osstell IDx device-generated ISQ values for Straumann tissue level, Ankylos, and 3i Certain implant systems. For both systems, a correlation coefficient r = 0.99 was found. Furthermore, a clinically rejectable mean difference of 0.09 ISQ units was noted between both datasets. CONCLUSIONS: The proposed laboratory method with the application of the Osstell algorithm for ISQ calculation is appropriate for future studies to in vitro research aspects of resonance frequency analysis implant stability measurements. PMID- 29027159 TI - Correction to: Multifunctional decoration of alpha-tocopheryl succinate-based NP for cancer treatment: effect of TPP and LTVSPWY peptide. PMID- 29027160 TI - ChIP and ChIP-Related Techniques: Expanding the Fields of Application and Improving ChIP Performance. AB - Protein-DNA interactions in vivo can be detected and quantified by chromatin immunoprecipitation (ChIP). ChIP has been instrumental for the advancement of epigenetics and has set the groundwork for the development of a number of ChIP related techniques that have provided valuable information about the organization and function of genomes. Here, we provide an introduction to ChIP and discuss the applications of ChIP in different research areas. We also review some of the strategies that have been devised to improve ChIP performance. PMID- 29027161 TI - Considerations on Experimental Design and Data Analysis of Chromatin Immunoprecipitation Experiments. AB - Arguably one of the most valuable techniques to study chromatin organization, ChIP is the method of choice to map the contacts established between proteins and genomic DNA. Ever since its inception, more than 30 years ago, ChIP has been constantly evolving, improving, and expanding its capabilities and reach. Despite its widespread use by many laboratories across a wide variety of disciplines, ChIP assays can be sometimes challenging to design, and are often sensitive to variations in practical implementation.In this chapter, we provide a general overview of the ChIP method and its most common variations, with a special focus on ChIP-seq. We try to address some of the most important aspects that need to be taken into account in order to design and perform experiments that generate the most reproducible, high-quality data. Some of the main topics covered include the use of properly characterized antibodies, alternatives to chromatin preparation, the need for proper controls, and some recommendations about ChIP-seq data analysis. PMID- 29027162 TI - How to Combine ChIP with qPCR. AB - Chromatin immunoprecipitation (ChIP) coupled with quantitative PCR (qPCR) has in the last 15 years become a basic mainstream tool in genomic research. Numerous commercially available ChIP kits, qPCR kits, and real-time PCR systems allow for quick and easy analysis of virtually anything chromatin-related as long as there is an available antibody. However, the highly accurate quantitative dimension added by using qPCR to analyze ChIP samples significantly raises the bar in terms of experimental accuracy, appropriate controls, data analysis, and data presentation. This chapter will address these potential pitfalls by providing protocols and procedures that address the difficulties inherent in ChIP-qPCR assays. PMID- 29027163 TI - Analysis of Protein-DNA Interaction by Chromatin Immunoprecipitation and DNA Tiling Microarray (ChIP-on-chip). AB - Chromatin immunoprecipitation (ChIP) has become the most effective and widely used tool to study the interactions between specific proteins or modified forms of proteins and a genomic DNA region. Combined with genome-wide profiling technologies, such as microarray hybridization (ChIP-on-chip) or massively parallel sequencing (ChIP-seq), ChIP could provide a genome-wide mapping of in vivo protein-DNA interactions in various organisms. Here, we describe a protocol of ChIP-on-chip that uses tiling microarray to obtain a genome-wide profiling of ChIPed DNA. PMID- 29027164 TI - Chromatin Immunoprecipitation from Mouse Embryonic Tissue or Adherent Cells in Culture, Followed by Next-Generation Sequencing. AB - Chromatin immunoprecipitation (ChIP) is considered the method of choice for characterizing interactions between a protein of interest and specific genomic regions. It is of paramount importance in gene-regulation studies, as it can be used to map the target regions of sequence-specific transcription factors and cofactors, or histone marks that characterize distinct chromatin states. ChIP can be used directly to probe interactions with candidate regions (ChIP-PCR), or coupled to Next-Generation Sequencing (ChIP-seq) to generate genome-wide information. This chapter describes a protocol for performing ChIP and ChIP-seq of transcription factors, starting either from mouse embryonic tissue or adherent cells in culture. PMID- 29027165 TI - Chromatin RNA Immunoprecipitation (ChRIP). AB - Researchers have recently had a growing interest in understanding the functional role of long noncoding RNAs (lncRNAs) in chromatin organization. Accumulated evidence suggests lncRNAs could act as interphase molecules between chromatin and chromatin remodelers to define the epigenetic code. However, it is not clear how lncRNAs target chromatin remodelers to specific chromosomal regions in order to establish a functionally distinct epigenetic state of chromatin. We developed and optimized chromatin RNA immunoprecipitation (ChRIP) technology to characterize the lncRNAs associated with active and inactive chromatin compartments. Use of ChRIP to identify chromatin-bound lncRNA will further improve our knowledge regarding the functional role of lncRNAs in establishing epigenetic modifications of chromatin. PMID- 29027166 TI - DNA Accessibility by MNase Digestions. AB - Micrococcal nuclease (MNase) digestion of chromatin cuts linker DNA between neighboring nucleosomes and in this way generates mononucleosomes. The protected fragments can then be analyzed by genome-wide sequencing techniques or by quantitative PCR to obtain information about the positions of nucleosomes in the chromatin. Nucleosomes are differentially sensitive to MNase digestion, which means that titrations of MNase should be performed to obtain a comprehensive map of the nucleosome positions of a chromatin region or genome. PMID- 29027167 TI - Characterization of the Nucleosome Landscape by Micrococcal Nuclease-Sequencing (MNase-seq). AB - MNase-seq allows the genome-wide examination of the nucleosome landscape by determination of nucleosome positioning and occupancy. Typically, native or formaldehyde fixed chromatin is subjected to digestion by micrococcal nuclease (MNase), which degrades linker DNA and yields mainly mono-nucleosomes. The resulting material can be processed directly or can be subjected to an optional chromatin immunoprecipitation step (MNase-ChIP-seq). De-crosslinked and purified DNA is then subjected to next-generation sequencing. The protocol presented here has been tailored for the analysis of nucleosome landscape in the malaria parasite, Plasmodium falciparum, but most steps are directly applicable to other cell types. We also discuss general considerations for experimental design and computational analysis, which are crucial for accurate investigation of the nucleosome landscape. PMID- 29027157 TI - Animal models for bipolar disorder: from bedside to the cage. AB - Bipolar disorder is characterized by recurrent manic and depressive episodes. Patients suffering from this disorder experience dramatic mood swings with a wide variety of typical behavioral facets, affecting overall activity, energy, sexual behavior, sense of self, self-esteem, circadian rhythm, cognition, and increased risk for suicide. Effective treatment options are limited and diagnosis can be complicated. To overcome these obstacles, a better understanding of the neurobiology underlying bipolar disorder is needed. Animal models can be useful tools in understanding brain mechanisms associated with certain behavior. The following review discusses several pathological aspects of humans suffering from bipolar disorder and compares these findings with insights obtained from several animal models mimicking diverse facets of its symptomatology. Various sections of the review concentrate on specific topics that are relevant in human patients, namely circadian rhythms, neurotransmitters, focusing on the dopaminergic system, stressful environment, and the immune system. We then explain how these areas have been manipulated to create animal models for the disorder. Even though several approaches have been conducted, there is still a lack of adequate animal models for bipolar disorder. Specifically, most animal models mimic only mania or depression and only a few include the cyclical nature of the human condition. Future studies could therefore focus on modeling both episodes in the same animal model to also have the possibility to investigate the switch from mania-like behavior to depressive-like behavior and vice versa. The use of viral tools and a focus on circadian rhythms and the immune system might make the creation of such animal models possible. PMID- 29027168 TI - ChIP-re-ChIP: Co-occupancy Analysis by Sequential Chromatin Immunoprecipitation. AB - Chromatin immunoprecipitation (ChIP) exploits the specific interactions between DNA and DNA-associated proteins. It can be used to examine a wide range of experimental parameters. A number of proteins bound at the same genomic location can identify a multi-protein chromatin complex where several proteins work together to regulate gene transcription or chromatin configuration. In many instances, this can be achieved using sequential ChIP; or simply, ChIP-re-ChIP. Whether it is for the examination of specific transcriptional or epigenetic regulators, or for the identification of cistromes, the ability to perform a sequential ChIP adds a higher level of power and definition to these analyses. In this chapter, we describe a simple and reliable method for the sequential ChIP assay. PMID- 29027169 TI - Sm-ChIPi: Single-Molecule Chromatin Immunoprecipitation Imaging. AB - Epigenetic complexes regulate chromatin dynamics via binding to and assembling on chromatin. However, the mechanisms of chromatin binding and assembly of epigenetic complexes within cells remain incompletely understood, partly due to technical challenges. Here, we present a new approach termed single-molecule chromatin immunoprecipitation imaging (Sm-ChIPi) that enables to assess the cellular assembly stoichiometry of epigenetic complexes on chromatin. Sm-ChIPi was developed based on chromatin immunoprecipitation followed by single-molecule fluorescence microscopy imaging. In this method, an epigenetic complex subunit fused with a gene coding for a fluorescent protein is stably expressed in its corresponding knockout cells. Nucleosomes associated with epigenetic complexes are isolated from cells at native conditions and incubated with biotinylated antibodies. The resulting complexes are immobilized on a quartz slide that had been passivated and functionalized with NeutrAvidin. Image stacks are then acquired by using single-molecule TIRF microscopy. The individual spots imaged by TIRF microscopy represent single protein-nucleosome complexes. The number of copies of the protein complexes on a nucleosome is inferred from the fluorescence photobleaching measurements. Sm-ChIPi is a sensitive and direct method that can quantify the cellular assembly stoichiometry of epigenetic complexes on chromatin. PMID- 29027170 TI - Chromatin Immunoprecipitation of Skeletal Muscle Tissue. AB - Chromatin immunoprecipitation (ChIP) is an invaluable method for studying interactions between histone proteins and genomic DNA regions and transcriptional regulation using antibodies to enrich genomic regions associated with these epitopes. Either to monitor the presence of histones with post-translational modifications at specific genomic locations or to measure transcription factor interactions with a candidate target gene, protein-DNA complexes are most commonly crosslinked using formaldehyde, which stabilizes these transient interactions. Chromatin is then fragmented to allow separation of genomic fragments bound by the histone or transcription factor of interest away from those that are unbound. Following immunoprecipitation, formaldehyde crosslinks are reversed and enriched DNA fragments are purified. While some investigators have successfully performed ChIP experiments from crosslinked skeletal muscle in cell culture, the process is relatively inefficient compared to whole tissue. This chapter provides protocols specifically designed for the crosslinking and immunoprecipitation of human skeletal muscle biopsy samples in preparation for chromatin immunoprecipitation-sequencing (ChIP-seq). PMID- 29027171 TI - Chromatin Immunoprecipitation Assay in the Hyperthermoacidophilic Crenarchaeon, Sulfolobus acidocaldarius. AB - Chromatin immunoprecipitation (ChIP) is a powerful method used for identifying genome-wide DNA-protein interactions in vivo. A large number of essential intracellular processes such as DNA replication, transcription regulation, chromatin stability, and others are all dependent on protein interactions with DNA. The DNA fragments enriched from the ChIP assay are analyzed by downstream applications, for example, microarray hybridization (ChIP-chip), quantitative PCR (ChIP-qPCR), or deep sequencing (ChIP-seq). This chapter presents a stepwise protocol for ChIP performed in hyperthermophilic archaea that we have successfully used in the hyperthermoacidophilic crenarchaeon Sulfolobus acidocaldarius. PMID- 29027173 TI - Native Chromatin Immunoprecipitation-Sequencing (ChIP-Seq) from Low Cell Numbers. AB - ChIP-seq is the current method of choice for genome-wide protein location analysis. Here, we present a native (non-cross-linked) ChIP procedure suitable for histone proteins, coupled with an efficient library preparation technique for subsequent next-generation sequencing. The method enables ChIP-seq starting with 50,000 or more cells. PMID- 29027172 TI - Using Intra-ChIP to Measure Protein-DNA Interactions in Intracellular Pathogens. AB - Chromatin immunoprecipitation is used to measure the binding of transcription factors to target DNA sequences in order to better understand transcriptional regulation. Here, we describe a process to analyze bacterial transcription factor binding in the context of an infected eukaryotic host cell. Using this approach, we measured the binding kinetics of three Chlamydia trachomatis transcription factors within infected cells, and demonstrated temporal changes in binding. PMID- 29027174 TI - MOBE-ChIP: Probing Cell Type-Specific Binding Through Large-Scale Chromatin Immunoprecipitation. AB - In multicellular organisms, the initiation and maintenance of specific cell types often require the activity of cell type-specific transcriptional regulators. Understanding their roles in gene regulation is crucial but probing their DNA targets in vivo, especially in a genome-wide manner, remains a technical challenge with their limited expression. To improve the sensitivity of chromatin immunoprecipitation (ChIP) for detecting the cell type-specific signals, we have developed the Maximized Objects for Better Enrichment (MOBE)-ChIP, where ChIP is performed at a substantially larger experimental scale and under low background conditions. Here, we describe the procedure in the study of transcription factors in the model plant Arabidopsis. However, with some modifications, the technique should also be implemented in other systems. Besides cell type-specific studies, MOBE-ChIP can also be used as a general strategy to improve ChIP signals. PMID- 29027175 TI - Multiplexed ChIP-Seq Using Direct Nucleosome Barcoding: A Tool for High Throughput Chromatin Analysis. AB - Chromatin immunoprecipitation followed by sequencing (ChIP-Seq) or microarray hybridization (ChIP-on-chip) are standard methods for the study of transcription factor binding sites and histone chemical modifications. However, these approaches only allow profiling of a single factor or protein modification at a time.In this chapter, we present Bar-ChIP, a higher throughput version of ChIP Seq that relies on the direct ligation of molecular barcodes to chromatin fragments. Bar-ChIP enables the concurrent profiling of multiple DNA-protein interactions and is therefore amenable to experimental scale-up, without the need for any robotic instrumentation. PMID- 29027176 TI - Analysis of ChIP-seq Data in R/Bioconductor. AB - The development of novel high-throughput sequencing methods for ChIP (chromatin immunoprecipitation) has provided a very powerful tool to study gene regulation in multiple conditions at unprecedented resolution and scale. Proactive quality control and appropriate data analysis techniques are of critical importance to extract the most meaningful results from the data. Over the last years, an array of R/Bioconductor tools has been developed allowing researchers to process and analyze ChIP-seq data. This chapter provides an overview of the methods available to analyze ChIP-seq data based primarily on software packages from the open source Bioconductor project. Protocols described in this chapter cover basic steps including data alignment, peak calling, quality control and data visualization, as well as more complex methods such as the identification of differentially bound regions and functional analyses to annotate regulatory regions. The steps in the data analysis process were demonstrated on publicly available data sets and will serve as a demonstration of the computational procedures routinely used for the analysis of ChIP-seq data in R/Bioconductor, from which readers can construct their own analysis pipelines. PMID- 29027177 TI - Spike-In Normalization of ChIP Data Using DNA-DIG-Antibody Complex. AB - Chromatin immunoprecipitation (ChIP) is a widely used method to determine the occupancy of specific proteins within the genome, helping to unravel the function and activity of specific genomic regions. In ChIP experiments, normalization of the obtained data by a suitable internal reference is crucial. However, particularly when comparing differently treated samples, such a reference is difficult to identify. Here, a simple method to improve the accuracy and reliability of ChIP experiments by the help of an external reference is described. An artificial molecule, composed of a well-defined digoxigenin (DIG) labeled DNA fragment in complex with an anti-DIG antibody, is synthesized and added to each chromatin sample before immunoprecipitation. During the ChIP procedure, the DNA-DIG-antibody complex undergoes the same treatments as the chromatin and is therefore purified and quantified together with the chromatin of interest. This external reference compensates for variability during the ChIP routine and improves the similarity between replicates, thereby emphasizing the biological differences between samples. PMID- 29027178 TI - Mechanisms of regulation of normal and metaplastic intestinal differentiation. AB - The gastrointestinal tract is an organized structure originating from the three embryonic germ layers: endoderm, mesoderm and ectoderm. Morphological changes that accompany its formation are relatively well known, although the underlying molecular mechanisms are still poorly defined. Intestinal metaplasia, resulting from an epithelial transdifferentiation process, is considered a precursor lesion of gastric adenocarcinoma, a malignancy with serious consequences in terms of morbidity and mortality worldwide. Similarly to gastrointestinal embryonic development, molecular changes involved in the development of this lesion that recapitulate the intestinal development, out of time and space, are also widely unknown. In this review we present, briefly, the process of formation of the digestive tract, from its embryonic age to adulthood, with emphasis on anterior posterior patterning and on molecular mechanisms that may play an important role. In addition, we try to establish a parallel and understand what mechanisms can, through their deregulation, originate the metaplastic lesion. Cdx genes appear to be the main regulators of normal intestinal differentiation and also to be largely involved in the metaplastic epithelial transdifferentiation process. However, control of gene expression both during intestinal development and in intestinal metaplasia is complex and seems to depend on several transcription factors. More extensive studies about the mechanisms underlying intestinal metaplasia are needed if we aim to prevent neoplasia development and all its negative consequences in persons at risk. PMID- 29027179 TI - Association of DNMT3B -283T>C polymorphism with risk of lung and gastric cancer: a case-control study and a meta-analysis. AB - PURPOSE: To investigate the association of DNMT3B -283T>C polymorphism with the risk of lung or gastric cancer, which was followed by a meta-analysis. METHODS: The genotyping of -283T>C was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and was confirmed by sequencing. RESULTS: The results of this case-control study showed that -283T>C was not associated with the risk of lung or gastric cancer, and further stratified analysis according to age, gender, smoking status, and alcohol status confirmed the present finding. However, data from a meta-analysis in the Asian population revealed a significant association between -283T>C and lung cancer risk in the allelic model (C vs. T: odds ratio [OR] = 1.28, 95% confidence interval [CI], 1.06-1.55, p = 0.01) and two genetic models (CC vs. TC: OR = 1.29, 95% CI, 1.04 1.59, p = 0.02; CC vs. TC + TT: OR = 1.30, 95% CI, 1.06-1.60, p = 0.01). CONCLUSIONS: These results provided evidence that the DNMT3B -283T>C polymorphism might significantly contribute to the lung cancer risk in the Asian population, but not the gastric cancer risk in the Chinese population. PMID- 29027180 TI - Effect of ZrB2 addition on the oxidation behavior of Si-SiC-ZrB2 composites exposed at 1500 degrees C in air. AB - BACKGROUND: Silicon carbide ceramics obtained by reactive infiltration of silicon (SRI) have many industrial applications especially involving severe and high temperature conditions. In this study, the oxidation behavior in air of Si-SiC ZrB2 systems at a high temperature (1500 degrees C) for dwelling times of up to 48 hours was examined. METHODS: The oxidation process was analyzed on the basis of elemental maps and X-ray diffraction patterns taken, respectively, on the core and on the surface of the specimens, together with weight gains and the average thicknesses of the resulting scale. Further, flexural strength at room temperature was examined as a function of different oxidation times. RESULTS: The main chemical reactions and phase transformations involved in the oxidation process are reported. Several oxides were detected on the surface: zirconia, silica, zircon and 3-zirconium monoxide. All of the samples showed a parabolic oxidation kinetics, suggesting that the controlling mechanism was the diffusion; however, even after 48 hours, the oxidation process was not finished - indeed, all of the samples continued to gain weight. CONCLUSIONS: The oxidation of Si-SiC ZrB2 material produced via SRI was slower compared with previously investigated ZrB2-SiC composites processed with a different techniques and tested in similar conditions. The oxidation mechanism was found to be consistent with the convection cells model. PMID- 29027181 TI - Excellent inter-observer agreement between radiologist and nurse: tracheal carina based identification of peripherally inserted central catheter tip position. AB - INTRODUCTION: Accurate identification of position of a central venous catheter tip is important to reduce catheter-related complications. Nevertheless, inter observer bias limits the accuracy of traditional method for determining tip position on chest x-ray (CXR) images. The aim of this study was to explore a simple and objective method for assessing position of peripherally inserted central catheter (PICC) tip on CXR image. METHODS: Tracheal carina was used as the landmark to identify positions of catheter tips. The central vein (CV) was located between 3 cm above and 4 cm below tracheal carina. The vertical distance from catheter tips to tracheal carina was measured independently by a nurse and re-assessed by a radiologist. Inter-observer agreement was expressed as percentage in agreement and kappa coefficient. RESULTS: Six hundred and twelve CXR images of catheters taken from 612 patients were included. The inter-observer agreement between nurse and radiologist was 97.88% (kappa = 0.934) for all catheter tips evaluated, and 98.40% (kappa = 0.923) for catheter tips with regard to CV, innominate vein, and right atrium. Most discrepancies (9/13) between observers occurred when catheter tips were positioned in a border region between different anatomical parts. CONCLUSIONS: Inter-observer agreement between nurse and radiologist is excellent. Our results demonstrate that the measurement of distance between catheter tip and tracheal carina performed by a nurse provide a convenient and reliable way to determine position of PICC tip. Our study also suggests that nurses can be trained to handle PICCs, especially when properly located catheters are applied in critically ill patients during emergency setting. PMID- 29027182 TI - Preoperative management of arteriovenous fistula (AVF) for hemodialysis. AB - Native arteriovenous fistula (AVF) is the favorite access for hemodialysis (HD). The National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDOQI) recommends its creation in most patients with renal failure. Unfortunately, intensive efforts to promote native AVF in patients with marginal vessels have increased the rate of primary fistula failure. A non-functioning fistula prompts the use of central venous catheter (CVC) that, unlike AVF, has been associated with an increased risk of morbidity and mortality among patients receiving HD. We believe that successful and timely AVF placement relies on the development of a multidisciplinary integrated preoperative program divided into five stages: (i) management of patients with advanced chronic kidney disease (CKD), (ii) management of preoperative risk factors for AVF failure, (iii) planning of native AVF, (iv) assessment of patient eligibility and (v) preoperative vascular mapping. Focusing specifically on native AVF, we review scientific evidence regarding preoperative management of this vascular access in order to favor construction of long-term functioning fistula minimizing development of severe complications. PMID- 29027183 TI - Actinic cystitis: causes, treatment and experience of a single centre in the last five years. AB - INTRODUCTION: Actinic cystitis (AC) is the manifestation of symptoms and signs following pelvic radiotherapy. Pelvic radiotherapy produces both acute and chronic damage and such damage may have a devastating impact on the quality and on the amount of life of the patient. OBJECTIVES: To evaluate the number of radical cystectomies that have become necessary in the last five years in our department for AC after radiation treatment. MATERIALS AND METHODS: From February 2012 to February 2017, 11 patients underwent "open" cystectomy for AC. All patients were studied with radiographic examinations and endoscopy prior to surgery. We retrospectively evaluated the type of primitive cancer, the radiation dose administered, the time between radiation treatment and cystectomy. We also studied the related symptoms that required surgery. RESULTS: The mean age of patients at the time of cystectomy was 75 years. In six patients (54.4%) radiotherapy was performed for prostate cancer, for rectal cancer in two patients (18.1%), and for endometrial cancer in three patients (27.2%). Total radiant dose was different in different patients depending on the type and localization of cancer. The median time between radiotherapy and cystectomy was 111 months (24 256 months). All patients had symptoms before surgery. Seven patients (63.3%) with gross haematuria were treated with endoscopic clot evacuation and fulguration. DISCUSSION: The first approach to patients with AC is often supportive care. Surgery remains the most invasive treatment in the management of those patients who are not responsive to conservative treatments. PMID- 29027184 TI - Low rate of clinically important avascular necrosis of the femoral head after Ludloff's procedure. AB - INTRODUCTION: Ludloff's procedure for open reduction of congenital dislocation of the hip (CDH) is recommended for its minimal tissue damage, but is criticised for the risk of late avascular necrosis (AVN) of the femoral head. The aim of present study was primarily to assess the risk of late AVN of the femoral head and secondly the range of motion (ROM) of the hip and the quality of life in children following Ludloff's procedure. METHODS AND MATERIALS: 13 hips in 11 children after Ludloff's procedure due to CDH were included retrospectively from 1997 to 2005 at Aarhus University Hospital. Radiographs were evaluated for the presence of AVN of the femoral head and classified according to the Bucholz and Ogden classification, with type 2-4 having clinical relevance. A clinical examination included range of motion (ROM) and leg length discrepancy (LLD) measurements. The HAGOS hip questionnaire evaluated activity, participation and quality of life. RESULTS: No severe type 3-4 AVN was observed. 2 type 2 and 5 type 1 were observed. AVN was observed in 7 of the 13 operated hips (54%). An 8.6 degrees difference in flexion for unilaterally treated hips was observed (p<0.02). 8 of 11 patients had minor LLD (range 0.5-2 cm). CONCLUSIONS: Only minor AVN of clinical importance was seen after Ludloff's procedure. PMID- 29027185 TI - Advanced containment methods for Legg-Calve-Perthes disease: triple pelvic osteotomy versus Chiari osteotomy. AB - INTRODUCTION: The goal of intervention in Legg-Calve-Perthes disease (LCPD) is to prevent femoral head deformation by containing the head within the acetabulum. Currently, surgical containment methods are the mainstay of treatment, and pelvic osteotomies have been shown to be successful. They include triple pelvic osteotomy (TPO), Salter osteotomy, Chiari osteotomy and shelf procedure. The purpose of this study was to compare clinical and radiologic results for Chiari osteotomy and TPO in LCPD. METHODS: 29 children treated between 1980 and 2010 for LCPD in 2 centres were reviewed. 19 underwent TPO, and 10, Chiari osteotomy. Two independent observers assessed sequential radiographs and medical data. Each hip was preoperatively classed by clinical data, Catteral, Herring and Salter Thompson classification, centre-edge angle (CE), and acetabular index (AI). The 2 groups were first tested for their comparability. After surgery the hips were classified by Stulberg classification, CE, AI, Harris Hip Score (HHS) and performance of further surgery. Chiari osteotomy and TPO have been secondary compared on these data by Wilcoxon test. RESULTS: Average follow-up was 4.2 years. The 2 groups were comparable before surgery. At first and last follow-up examination, statistically significantly superior results in patients with TPO regarding Stulberg classification (p = 0.01), AI (p = 0.002), pain (p = 0.02) and function (p = 0.01) in the HHS score were found. No differences were noticed concerning CE angle. CONCLUSIONS: In our series, TPO provided better radiologic and clinical outcomes compared to Chiari osteotomy, specially concerning the final Stulberg classification. We concluded that TPO should be preferred when indicated. PMID- 29027186 TI - Novel technique for intraoperative sciatic nerve assessment in complex primary total hip arthroplasty: a pilot study. AB - INTRODUCTION: Sciatic nerve injury (SNI) is a potentially devastating complication after total hip arthroplasty (THA). Intraoperative neural monitoring has been found in several studies to be useful in preventing SNI, but can be difficult to implement. In this study, we examine the results of using a handheld nerve stimulator for intraoperative sciatic nerve (SN) monitoring during complex THA requiring limb lengthening and/or significant manipulation of the SN. METHODS: A consecutive series of 11 cases (9 patients, 11 hips) with either severe developmental dysplasia of the hip (Crowe 3-4) or other underlying conditions requiring complex hip reconstruction involving significant leg lengthening and/or nerve manipulation. SN function was monitored intraoperatively by obtaining pre- and post-reduction thresholds during component trialing. The results of nerve stimulation were then used to influence intraoperative decision making. RESULTS: No permanent postoperative SN complications occurred, with an average increase of 28.5 mm in limb length, range (6-51 mm). In 2 out of 11 cases, a change in nerve response was identified after trial reduction, which resulted in an alternate surgical plan (femoral shortening osteotomy and downsizing femoral head). In the remaining cases, the stimulator demonstrated a response consistent with the baseline assessment, assuring that the appropriate lengthening was achieved without SNI. 1 patient had a transient motor and sensory peroneal nerve palsy, which resolved within 2 weeks. CONCLUSIONS: The intraoperative use of a handheld nerve stimulator facilitates surgical decision making and can potentially prevent SNI. The real-time assessment of nerve function allows immediate corrective action to be taken before nerve injury occurs. PMID- 29027187 TI - Midterm results of trochanteric flip osteotomy technique for management of fractures around the hip. AB - INTRODUCTION: In this study, we aimed to investigate safety and efficacy of the trochanteric flip osteotomy with surgical hip dislocation technique in selected displaced acetabular and femoral head fractures with clinico-radiological outcome and potential complications. MATERIALS AND METHODS: We retrospectively reviewed 32 patients from January 2009 to June 2014. Selected displaced acetabular fractures with comminution and/or cranial extension of posterior wall, marginal impaction, intraarticular fragment, femoral head fractures and hip fracture dislocations were operated by this modified approach of trochanteric flip osteotomy and surgical hip dislocation. Patients were evaluated for fracture reduction, femoral head viability, trochanteric union, abduction power, and functional evaluation was done by Merle d'Aubigne-Postel scoring system. Minimum follow-up was 24 months. RESULTS: Reduction was judged to be anatomical in 84.38% of cases, and within 1-3 millimetres in 9.38% of cases. All osteotomies healed in an anatomical position. Heterotopic ossification was found in 2 patients limited to Brooker class I. Osteonecrosis developed in 1 patient. 2 patients developed arthritis of the hip as sequelae of poor reduction. Abduction power was MRC 5/5 in all except in 1 patient (4/5). Mean Merle d'Aubigne-Postel score was 16.18; overall good to excellent result was achieved in 87.5% of cases. CONCLUSIONS: Trochanteric flip osteotomy with surgical dislocation allows better intraarticular assessment, control of intraarticular fragments, assists accurate reduction and the fixation of complex acetabular and femoral head fractures, without compromising femoral head vascularity and abductor strength. This technique has provided excellent midterm results in the management of complex injuries around the hip. PMID- 29027188 TI - Transfusion rate using intravenous tranexamic acid in hip revision surgery. AB - INTRODUCTION: Hip revision surgery is associated with a high probability of the necessity for a blood transfusion. Different studies support the use of tranexamic acid (TXA) to decrease the rate of transfusions in primary hip surgery. Nevertheless, the use of this drug in hip revision surgery has not yet been widely accepted. The aim of our study was to establish the rate of blood transfusion with and without TXA in hip revision surgery. METHODS: We retrospectively studied 125 hip revision surgery patients operated on between 2011 and 2014. We divided our series into 2 groups: the TXA group with 61 patients (in which a 1000 mg dose of TXA was used before the skin incision and a second identical dose after skin closure) and a control group with 64 patients. We analysed the red blood cell (RBC) transfusion rates and their odds risk as well as the presence of collateral complications. RESULTS: Average RBC transfusion was 2.7 units/patient (range 0-6) in the control group compared to 1.6 units/patient (range 0-6) in the TXA group. A 90.11% (odds ratio [OR] 0.098; confidence interval [CI] 0.02-0.04; p<0.0029) odds risk reduction for transfusion of at least 1 unit of erythrocyte blood cell was observed in the TXA group. Complications associated with the TXA were similar in both groups. INTERPRETATION: The benefits of TXA have been shown in elective hip replacement. In this study, TXA proved to be safe and efficacious in reducing the need for transfusions following revision total hip arthroplasty. PMID- 29027189 TI - Evidence based recommendations for reducing head-neck taper connection fretting corrosion in hip replacement prostheses. AB - INTRODUCTION: This systematic review seeks to summarise the published studies investigating prosthetic design, manufacture and surgical technique's effect on fretting corrosion at the head-neck taper connection, and provide clinical recommendations to reduce its occurrence. METHODS: PubMed, MEDLINE and EMBASE electronic databases were searched using the terms taper, trunnion, cone and head neck junction. Articles investigating prosthetic design, manufacture and surgical technique's effect on fretting corrosion were retrieved, reviewed and graded according to OCEBM levels of evidence and grades of recommendation. RESULTS: The initial search yielded 1,224 unique articles, and 91 were included in the analysis. CONCLUSIONS: There is fair evidence to recommend against the use of high offset femoral heads, larger diameter femoral heads, and to pay particular consideration to fretting corrosion's progression with time and risk with heavier or more active patients. Particular to metal-on-metal hip prostheses, there is fair evidence to recommend positioning the acetabular component to minimise edge loading. Particular to metal-on-polyethylene hip prostheses, there is fair evidence to recommend the use of ceramic femoral heads, against use of cast cobalt alloy femoral heads, and against use of low flexural rigidity femoral stems. Evidence related to taper connection design is largely conflicting or inconclusive. Head-neck taper connection fretting corrosion is a multifactorial problem. Strict adherence to the guidelines presented herein does not eliminate the risk. Prosthesis selection is critical, and well-controlled studies to identify each design parameter's relative contribution to head-neck taper connection fretting corrosion are required. PMID- 29027190 TI - Mid-term results of revision total hip arthroplasty with an uncemented modular femoral component. AB - INTRODUCTION: During revision total hip arthroplasty (THA), the surgeon commonly faces deficient proximal femoral bone. In this situation, distal fixation of the prosthesis is required. The aim of the current retrospective study is to assess the clinical and radiographic mid-term outcome of revision total hip arthroplasty using a modular uncemented, tapered, grit-blasted, distal straight stem system. METHODS: This retrospective study included 70 femoral revisions that were performed in 67 patients using the device of interest. All patients were operated on via an extended trochanteric osteotomy. 60 revisions were performed as 1-stage (12 infected) and 10 as 2-stage (all infected) revisions. At 3 months postoperatively and at final follow-up, patients were assessed radiographically for the presence of osteolysis and for distal integration. RESULTS: The mean follow-up time was 4.3 (2.0-7.6) years. 4 patients had a removal of at least 1 prosthetic component. Stem survival for any reason was 92% after 5 years (95% confidence interval [CI], 83%-100%). With aseptic loosening of the stem as the endpoint of interest, survival after 5 years was 96% (95% CI, 88%-100%). A postoperative subsidence rate of 14.7% was found. No perioperative femoral fractures were found in the current patient series. CONCLUSIONS: This study showed excellent mid-term survival and good clinical and radiographic outcomes in patients who had undergone revision THA with a modular uncemented, tapered, straight design. PMID- 29027192 TI - Hip resurfacing arthroplasty for patients with inflammatory arthritis: a systematic review. AB - INTRODUCTION: Modern metal-on-metal hip resurfacing arthroplasty has led to decreased revision rates and high implant survival rates as compared to prior generations of resurfacing. Many of the series that report on resurfacing outcomes focus upon patients treated with a diagnosis of osteoarthritis. Patients with inflammatory arthritis such as rheumatoid arthritis (RA) and ankylosing spondylitis (AS) are also treated in these series, however, their outcomes following resurfacing are underreported. The aim of this study was to determine complications that may occur following hip resurfacing in patients with inflammatory arthritis. A secondary aim was to determine functional outcomes following resurfacing. METHODS: A search was performed in MEDLINE (PubMed/OVID), Cochrane Library, and Google Scholar. 5 studies met eligibility criteria. This review includes 196 hips; 120 had a diagnosis of AS or seronegative spondyloarthropathy and 76 had a diagnosis of RA or juvenile RA. 8 revisions were reported at a mean time of 64.2 (8.67-275.58) weeks. RESULTS: Femoral neck fracture was the most common indication for revision, occurring in 3.06% of all hips at 34.5 weeks (16.0-52.0). 2 infections, 2 reports of acetabular radiolucency, and no dislocations were reported. The University of California at Los Angeles score, Harris Hip Score, and Range of Motion were the most common functional outcomes measured, which increased in the majority of studies following resurfacing. CONCLUSIONS: Femoral neck fracture was the most common reason for revision in patients with inflammatory arthritis following resurfacing and there were no dislocations reported. Following resurfacing, these patients have improved functional outcomes. PMID- 29027191 TI - THA conversion rate comparing decompression alone, with autologous bone graft or stem cells in osteonecrosis. AB - INTRODUCTION: Core decompression (CD) with or without the addition of autologous bone graft (CDBG) is currently the most widely accepted treatment for hip osteonecrosis in stages of pre-collapse. The use of bone marrow mesenchymal stem cells (CDSC) is emerging as a promising biological alternative. We sought to determine the total hip arthroplasty (THA) conversion rate for patients treated with CD, CDBG or CDSC. MATERIAL AND METHODS: Between 1996 and 2012, 97 cases were evaluated in 72 patients: 47 CD cases, 34 CDGB cases and 16 CDSC cases. The mean age was 39 (20-63) years, 25 bilateral, 19 female and 53 male, 14 Ficat 1 and 83 Ficat 2. Bilateral cases with asymmetric stage and equal treatment were excluded. RESULTS: Conversion rate to THA was 44% for the CD group (21/47) at an average of 77 (24-324) months; 50% for the CDBG group (17/34) at an average of 34 (24-240) months and 50% for the CDSC group (8/16) at an average of 48 (24-72) months (p = 0.619). Log Rank test for survivorship analysis was not significant (p = 0.2011). Immunodeficiency or corticosteroid treatment history was associated with 16/47 of the CD group, 7/34 in the CDBG group and 1/16 in the CDSC group. Trauma was associated with 2/47 of the CD group, 5/34 of the CDBG group and none of the CDSC group. Hazard ratio considering risk factors was not significant (p = 0.252). CONCLUSIONS: In these series of cases including patients with pre-collapse osteonecrosis, we observed non-significant results regarding rate of conversion to THA with CD, CDBG or CDSC at an average of 5.5 years. PMID- 29027193 TI - Single-center experience with intraoperative extracorporeal membrane oxygenation use in lung transplantation. AB - BACKGROUND: Studies have shown that survival after lung transplantation is impaired if extracorporeal membrane oxygenation (ECMO) support is implemented. We investigated the outcome and potential independent risk factors on survival in recipients undergoing lung transplantation with intraoperative ECMO support. MATERIALS AND METHODS: Medical records of recipients were retrospectively evaluated (January 2000-December 2014). Retransplantation and bridge to transplantation on ECMO were excluded. Recipients (n = 291) were divided into 2 groups: those who needed intraoperative ECMO support (Group 1, n = 134) and those who did not receive intraoperative ECMO support (Group 2, n = 157). Independent risk factors were identified by a stepwise backward regression analysis. RESULTS: 1-year survival was 84.2% in Group 1 vs. 90.4% in Group 2, and 5-year survival was 52.8% in Group 1 vs. 70.5% in Group 2 (p = 0.002). Multivariate analysis indicated that recipient age (p = 0.001), renal replacement therapy (p = 0.001) and intraoperative ECMO support (p = 0.03) were significant risk factors for overall survival. The rate of postoperative early surgical complications was comparable between the two groups (p = 0.09). The number of patients requiring renal replacement therapy and experiencing late pulmonary complications was significantly higher in Group 1 (p = 0.02). CONCLUSIONS: Our data showed that lung transplantation with intraoperative ECMO support is associated with poor outcomes. PMID- 29027194 TI - Predictive Performance of Physiologically Based Pharmacokinetic (PBPK) Modeling of Drugs Extensively Metabolized by Major Cytochrome P450s in Children. AB - The accuracy of physiologically based pharmacokinetic (PBPK) model prediction in children, especially those younger than 2 years old, has not been systematically evaluated. The aim of this study was to characterize the pediatric predictive performance of the PBPK approach for 10 drugs extensively metabolized by CYP1A2 (theophylline), CYP2C8 (desloratidine, montelukast), CYP2C9 (diclofenac), CYP2C19 (esomeprazole, lansoprazole), CYP2D6 (tramadol), and CYP3A4 (itraconazole, ondansetron, sufentanil). Model performance in children was evaluated by comparing simulated plasma concentration-time profiles with observed clinical results for each drug and age group. PBPK models reasonably predicted the pharmacokinetics of desloratadine, diclofenac, itraconazole, lansoprazole, montelukast, ondansetron, sufentanil, theophylline, and tramadol across all age groups. Collectively, 58 out of 67 predictions were within 2-fold and 43 out of 67 predictions within 1.5-fold of observed values. Developed PBPK models can reasonably predict exposure in children age 1 month and older for an array of predominantly CYP metabolized drugs. PMID- 29027196 TI - Care mapping for the medically complex child. PMID- 29027195 TI - TSPYL Family Regulates CYP17A1 and CYP3A4 Expression: Potential Mechanism Contributing to Abiraterone Response in Metastatic Castration-Resistant Prostate Cancer. AB - The testis-specific Y-encoded-like protein (TSPYL) gene family includes TSPYL1 to TSPYL6. We previously reported that TSPYL5 regulates cytochrome P450 (CYP) 19A1 expression. Here we show that TSPYLs, especially TSPYL 1, 2, and 4, can regulate the expression of many CYP genes, including CYP17A1, a key enzyme in androgen biosynthesis, and CYP3A4, an enzyme that catalyzes the metabolism of abiraterone, a CYP17 inhibitor. Furthermore, a common TSPYL1 single nucleotide polymorphism (SNP), rs3828743 (G/A) (Pro62Ser), abolishes TSPYL1's ability to suppress CYP3A4 expression, resulting in reduced abiraterone concentrations and increased cell proliferation. Data from a prospective clinical trial of 87 metastatic castration resistant prostate cancer patients treated with abiraterone acetate/prednisone showed that the variant SNP genotype (A) was significantly associated with worse response and progression-free survival. In summary, TSPYL genes are novel CYP gene transcription regulators, and genetic alteration within these genes significantly influences response to drug therapy through transcriptional regulation of CYP450 genes. PMID- 29027197 TI - The risk of Stevens-Johnson syndrome and toxic epidermal necrolysis in new users of antiepileptic drugs. AB - OBJECTIVE: Older antiepileptic drugs (AEDs) are known to cause Stevens-Johnson syndrome and toxic epidermal necrolysis (SJS/TEN). However, evidence for newer AED is sparse. We quantified risks of SJS/TEN in association with use of all AEDs in the United Kingdom. METHODS: In a matched case-control study of 480 previously validated SJS/TEN cases (1995-2013) we used conditional logistic regression to calculate odds ratios (ORs) with 95% confidence intervals (CIs), and calculated absolute risks of SJS/TEN within separate cohorts of new users of 28 AEDs. We assessed causality between drugs and SJS/TEN in each exposed case, using an adapted version of the algorithm of drug causality for epidermal necrolysis (ALDEN) score. RESULTS: We observed a strong association between SJS/TEN and new use of carbamazepine (OR 92.57, 95% CI 19.89-infinity), phenytoin (OR 49.96, 95% CI 10.13-infinity), and lamotrigine (OR 26.90, 95% CI 4.88-infinity), where causality, according to the ALDEN score, was very probable or probable for most exposed cases. Absolute risks for SJS/TEN were highest for phenytoin (45.86 cases/100,000 exposed), lamotrigine (44.17 cases/100,000 exposed), and carbamazepine (20.38 cases/100,000 exposed). Despite increased ORs for valproate (40,941 exposed), gabapentin (116,037 exposed), pregabalin (59,967 exposed), and clobazam (4,300 exposed), ALDEN suggested no causal association. There were no observed cases of SJS/TEN among new users of levetiracetam (n = 96,77), clonazepam (n = 18,075), or topiramate (n = 11,307). SIGNIFICANCE: The results of our study are consistent with those of previous studies of SJS/TEN, which found increased risks of SJS/TEN in new use of carbamazepine, phenytoin, and lamotrigine. Despite frequent use, no ALDEN-score confirmed cases were observed in new users of valproate, gabapentin, pregabalin, levetiracetam, topiramate, or clonazepam. PMID- 29027198 TI - Shape analysis of spatial relationships between orbito-ocular and endocranial structures in modern humans and fossil hominids. AB - The orbits and eyes of modern humans are situated directly below the frontal lobes and anterior to the temporal lobes. Contiguity between these orbital and cerebral elements could generate spatial constraints, and potentially lead to deformation of the eye and reduced visual acuity during development. In this shape analysis we evaluate whether and to what extent covariation exists between ocular morphology and the size and spatial position of the frontal and temporal areas in adult modern humans. Magnetic resonance imaging (MRI) was used to investigate patterns of variation among the brain and eyes, while computed tomography (CT) was used to compare cranial morphology in this anatomical region among modern humans, extinct hominids and chimpanzees. Seventeen landmarks and semi-landmarks that capture the outline of the eye, frontal lobe, anterior fossa/orbital roof and the position of the temporal tips were sampled using lateral scout views in two dimensions, after projection of the average grayscale values of each hemisphere, with midsagittal and parasagittal elements overlapped onto the same plane. MRI results demonstrated that eye position in adult humans varies most with regard to its horizontal distance from the temporal lobes and, secondly, in its vertical distance from the frontal lobes. Size was mainly found to covary with the distance between the eye and temporal lobes. Proximity to these cerebral lobes may generate spatial constraints, as some ocular deformation was observed. Considering the CT analysis, modern humans vary most with regard to the orientation of the orbits, while interspecific variation is mainly associated with separation between the orbits and endocranial elements. These findings suggest that size and position of the frontal and temporal lobes can affect eye and orbit morphology, though potential effects on eye shape require further study. In particular, possible effects of these spatial and allometric relationships on the eye and vision should be examined using ontogenetic samples, vision parameters such as refractive error in diopters, and three-dimensional approaches that include measures of extraocular soft tissues within the orbit. PMID- 29027200 TI - Do Personality Traits Mediate the Relationship Between Childhood Abuse and Migraine? An Exploration of the Relationships in Young Adults Using the Add Health Dataset. AB - BACKGROUND: Personality traits (especially neuroticism) and childhood maltreatment have been independently related to many negative health outcomes later in life, including migraine. Studies have also shown the association between childhood maltreatment and maladaptive personality traits. The mediating role of personality traits on the relationship between childhood maltreatment and depression, psychological distress, and alcohol dependence has been extensively studied. However, this type of mediation has not been studied in the case of the development of migraine. This study investigated (1) the main effects of childhood abuse on personality traits, and of personality traits on migraine, and (2) the mediating role of neuroticism, on the relationship between childhood abuse and migraine in young adults. METHOD: We analyzed retrospective, cross sectional data from 13,493 adults aged 24-32 years in Wave 4 of the National Longitudinal Survey of Adolescent Health ("Add Health") data set. Participants were queried regarding maltreatment (emotional, physical, and sexual) during childhood, current Big Five personality traits (using mini International Personality Item Pool), current depression (using Center for Epidemiologic Studies-Depression Scale), perceived stress (Using Cohen's Perceived Stress Scale), and diagnosis of migraine by a health care provider. Linear and logistic regressions were used to assess the main effects of childhood maltreatment on the five personality traits (openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism) and the main effect of the personality traits on self-reported provider diagnosis of migraine. A structural equation model (SEM) was used to examine the mediating role of neuroticism on the relationship between childhood maltreatment and migraine. RESULTS: Linear regression models showed that childhood abuse independently predicted increased neuroticism (beta = 0.338, SE=+/-0.05, P < .001), and increased openness to experiences (beta = 0.341, SE = +/-0.06, P < .001) after adjusting for socio-demographic characteristics, current depression, and perceived stress. Logistic regression to examine the main effect of personality traits on migraine revealed that only neuroticism had a significant effect (OR = 1.07, 95%CI = 1.04-1.10) after controlling for childhood abuse, socio-demographic characteristics, current depression, and perceived stress. Our regression analyses showed that neuroticism, but not openness to experience, was a potential mediator for the relationship between childhood abuse and migraine. SEM confirmed significant mediation of the relationship between childhood abuse and migraine through neurotic personality traits (goodness of fit indices: CFI = 0.992, TLI = 0.979, RMSEA = 0.025), unadjusted for socio demographic variables, depression, and stress. In addition to the indirect effect (beta = 0.039, P < .01) of childhood abuse on migraine through neuroticism, there was also a significant direct effect (beta = 0.143, P < .01) of childhood abuse on migraine. After adjusting for socio-demographic variables, other personality types, depression, and stress, both the direct effect (beta = 0.127; P < .01) of childhood abuse on migraine and the indirect effect (beta = 0.09; P < .01) of childhood abuse on migraine through neuroticism were attenuated, but remained significant. CONCLUSION: Childhood abuse is associated with personality and migraine. An estimated 21% of the total effect of childhood abuse on migraine could be explained by mediation through neuroticism in the unadjusted model. In the fully adjusted model, an estimated 8.7% of the total effect could be explained by mediation, although, self-reported data limit the ability to draw firm conclusions. PMID- 29027199 TI - Characterization of a mouse model of sickle cell trait: parallels to human trait and a novel finding of cutaneous sensitization. AB - Sickle cell trait (SCT) has classically been categorized as a benign condition except in rare cases or upon exposure to severe physical conditions. However, several lines of evidence indicate that individuals with SCT are not always asymptomatic, and additional physiological changes and risks may remain unexplored. Here, we utilized mice harbouring one copy of normal human beta globin and one copy of sickle human beta globin as a model of SCT to assess haematological, histopathological and somatosensory outcomes. We observed that SCT mice displayed renal and hepatic vascular congestion after exposure to hypoxia. Further, we observed that SCT mice displayed increased cold aversion as well as mechanical and heat sensitivity, though to a lesser degree than homozygous sickle cell disease mice. Notably, mechanical hypersensitivity increased following hypoxia and reoxygenation. Overall our findings suggest that SCT is not entirely benign, and further assessment of pain and cutaneous sensitization is warranted both in animal models and in clinical populations. PMID- 29027201 TI - Phototrophic cultivation of NaCl-tolerant mutant of Spirulina platensis for enhanced C-phycocyanin production under optimized culture conditions and its dynamic modeling. AB - Commercial cultivation of Spirulina sp. is highly popular due to the presence of high amount of C-phycocyanin (C-PC) and other valuable chemicals like carotenoids and gamma-linolenic acid. In this study, the pH and the concentrations of nitrogen and carbon source were manipulated to achieve improved cell growth and C PC production in NaCl-tolerant mutant of Spirulina platensis. In this study, highest C-PC (147 mg . L-1 ) and biomass (2.83 g . L-1 ) production was achieved when a NaCl-tolerant mutant of S. platensis was cultivated in a nitrate and bicarbonate sufficient medium (40 and 60 mM, respectively) at pH 9.0 under phototrophic conditions. Kinetic study of wildtype S. platensis and its NaCl tolerant mutant was also done to determine optimum nitrate concentrations for maximum growth and C-PC production. Kinetic parameter of inhibition (Haldane model) was fitted to the relationship between specific growth rate and substrate concentration obtained from the growth curves. Results showed that the maximum specific growth rate (MUmax ) for NaCl-tolerant mutant increased by 17.94% as compared to its wildtype counterpart, with a slight increase in half-saturation constant (Ks ), indicating that this strain could grow well at high concentration of NaNO3 . C-PC production rate (Cmax ) in mutant cells increased by 12.2% at almost half the value of Ks as compared to its wildtype counterpart. Moreover, the inhibition constant (Ki ) value was 207.85% higher in NaCl-tolerant mutant as compared to its wildtype strain, suggesting its ability to produce C-PC even at high concentrations of NaNO3 . PMID- 29027202 TI - A rare vulval manifestation of acrochordons in a young woman. PMID- 29027203 TI - Phylogenetically persistent purinergic modulation of central pattern generators for breathing in lamprey and mammals. PMID- 29027204 TI - Schnitzler syndrome: A rare cause of chronic recalcitrant urticaria successfully treated with Anakinra. PMID- 29027205 TI - The dilemma of monotherapy or combination therapy in community-acquired pneumonia. AB - SCOPE: To study the factors associated with mortality in hospitalized patients with community-acquired pneumonia treated with monotherapy or combination therapy. METHODS: PubMed and Scopus were searched. Patients receiving macrolides, beta-lactams and fluoroquinolones, as monotherapy or in combination, were included. Meta-analyses and meta-regressions were performed. RESULTS: Fifty studies were included. Overall, monotherapy was not associated with higher mortality than combination (RR 1.14, 95% CI 0.99-1.32, I2 84%). Monotherapy was associated with higher mortality than combination in North American and retrospective studies. beta-lactam monotherapy was associated with higher mortality than beta-lactam/macrolide combination in the primary (1.32, 1.12-1.56, I2 85%) and most sensitivity analyses. There was no difference in mortality between fluoroquinolone monotherapy and beta-lactam/macrolide combination (0.98, 0.78-1.23, I2 73%). In meta-regressions, the moderators that could partially explain the observed statistical heterogeneity were the frequency of cancer patients (P = .03) and Pneumonia Severity Index score IV (P = .008). CONCLUSION: Due to the considerable heterogeneity and inclusion of unadjusted data, it is difficult to recommend a specific antibiotic regimen over another. Specific antibiotic regimens, study design and the characteristics of the population under study seem to influence the reported outcomes. PMID- 29027206 TI - Low-grade gastrointestinal lymphoma in dogs: 20 cases (2010 to 2016). AB - OBJECTIVES: To report the clinical presentation, treatment and prognosis of dogs with low-grade gastrointestinal lymphoma. MATERIALS AND METHODS: Cases were solicited from the American College of Veterinary Internal Medicine Oncology Diplomate listserv. Medical records of dogs with low-grade gastrointestinal lymphoma diagnosed via a combination of histology and immunohistochemistry with or without analysis of polymerase chain reaction for antigen receptor rearrangement were included. Signalment, clinical signs, diagnostic test results, chemotherapy protocol, response to treatment, date of first progression, rescue therapies and date and cause of death or last follow-up visit were collected. RESULTS: Twenty cases were included. Males and small breed dogs were over represented. Frequent clinical signs included weight loss, vomiting and diarrhoea. Most lymphomas were T-cell phenotype (95%), and epitheliotropism was commonly described (60%). Immunohistochemistry, polymerase chain reaction for antigen receptor rearrangement or both were frequently required for definitive diagnosis. Two dogs had resection of an intestinal mass, and all dogs were treated with chemotherapy; chlorambucil and prednisone were most commonly prescribed. Overall response rate was 70%, and median survival time was 424 days (95% confidence interval: 105 to 1206 days). CLINICAL SIGNIFICANCE: Low-grade gastrointestinal lymphoma appears to be a rare condition in dogs, and treatment with chemotherapy results in a high response rate and favourable survival times. Further study is needed to determine its prevalence in dogs with chronic enteropathies. PMID- 29027207 TI - Resource availability for the management of maternal sepsis in Malawi, other low income countries, and lower-middle-income countries. AB - OBJECTIVE: To assess the availability of key resources for the management of maternal sepsis and evaluate the feasibility of implementing the Surviving Sepsis Campaign (SSC) recommendations in Malawi and other low-resource settings. METHODS: A cross-sectional study was conducted at health facilities in Malawi, other low-income countries, and lower-middle-income countries during January March 2016. English-speaking healthcare professionals (e.g. doctors, nurses, midwives, and administrators) completed a questionnaire/online survey to assess the availability of resources for the management of maternal sepsis. RESULTS: Healthcare centers (n=23) and hospitals (n=13) in Malawi showed shortages in the resources for basic monitoring (always available in 5 [21.7%] and 10 [76.9%] facilities, respectively) and basic infrastructure (2 [8.7%] and 7 [53.8%], respectively). The availability of antibiotics varied between Malawian healthcare centers (9 [39.1%]), Malawian hospitals (8 [61.5%]), hospitals in other low income countries (10/17 [58.8%]), and hospitals in lower-middle-income countries (39/41 [95.1%]). The percentage of SSC recommendations that could be implemented was 33.3% at hospitals in Malawi, 30.3% at hospitals in other low-income countries, and 68.2% at hospitals in lower-middle-income countries. CONCLUSION: The implementation of existing SSC recommendations is unrealistic in low-income countries because of resource limitations. New maternal sepsis care bundles must be developed that are applicable to low-resource settings. PMID- 29027208 TI - Occurrence of acute renal failure on the same day as immune globulin product administrations during 2008 to 2014. AB - BACKGROUND: Acute renal failure (ARF) is a rare serious adverse event after immune globulin (IG) use. Our large claims-based study evaluated occurrence of same-day ARF after administration of different IGs and ascertained potential risk factors, during the 2008 to 2014 study period. STUDY DESIGN AND METHODS: A retrospective cohort study was conducted using a large commercial administrative database. The cohort included individuals exposed to IG products as identified by procedure codes. ARF was ascertained using ICD-9-CM diagnoses. Unadjusted same day ARF rates (per 1000 persons exposed) were estimated overall and by age, sex, and IG products. Regression analyses were conducted to control for confounding and assess potential risk factors. RESULTS: Of 20,440 persons exposed, 163 (7.97 per 1000) had a recorded same-day ARF. The unadjusted nonzero same-day ARF rates (per 1000) ranged from 1.92 (95% confidence interval [CI], 0.05-10.69) for Hizentra to 16.97 (95% CI, 11.36-24.37) for Privigen and differed by sex. In multivariate analyses, compared to Gammagard Liquid, no significantly elevated ARF risks were identified with any IGs. A significantly lower odds ratio was identified with Gamunex, 0.53 (95% CI, 0.30-0.93). Age 45 and over, prior renal impairment, hypertension, and other factors were associated with increased risk of same-day ARF. CONCLUSION: The study showed variation in the risk of IG-related ARF by age, sex, and IG products. The study results suggest the importance of recipient factors, such as older age and underlying health conditions. Variations in ARF occurrence may also be explained by product dosage, administration route and rate, and manufacturing processes, which warrant further evaluation. PMID- 29027209 TI - Heterogeneous distribution of alectinib in neuroblastoma xenografts revealed by matrix-assisted laser desorption ionization mass spectrometry imaging: a pilot study. AB - BACKGROUND AND PURPOSE: The penetration of the anaplastic lymphoma kinase (ALK) inhibitor alectinib in neuroblastomas and the relationship between alectinib and ALK expression are unknown. The aim of this study was to perform a quantitative investigation of the inter- and intra-tumoural distribution of alectinib in different neuroblastoma xenograft models using matrix-assisted laser desorption ionization MS imaging (MALDI-MSI). EXPERIMENTAL APPROACH: The distribution of alectinib in NB1 (ALK amplification) and SK-N-FI (ALK wild-type) xenograft tissues was analysed using MALDI-MSI. The abundance of alectinib in tumours and intra-tumoural areas was quantified using ion signal intensities from MALDI-MSI after normalization by correlation with LC-MS/MS. KEY RESULTS: The distribution of alectinib was heterogeneous in neuroblastomas. The penetration of alectinib was not significantly different between ALK amplification and ALK wide-type tissues using both LC-MS/MS concentrations and MSI intensities. Normalization with an internal standard increased the quantitative property of MSI by adjusting for the ion suppression effect. The distribution of alectinib in different intra tumoural areas can alternatively be quantified from MS images by correlation with LC-MS/MS. CONCLUSION AND IMPLICATIONS: The penetration of alectinib into tumour tissues may not be homogenous or influenced by ALK expression in the early period after single-dose administration. MALDI-MSI may prove to be a valuable pharmaceutical method for elucidating the mechanism of action of drugs by clarifying their microscopic distribution in heterogeneous tissues. PMID- 29027211 TI - Overview: the modulation of ageing through altered proteostasis. PMID- 29027210 TI - Oedema-fibrosis in Duchenne Muscular Dystrophy: Role of cardiovascular magnetic resonance imaging. AB - Duchenne muscular dystrophy (DMD) is an X-linked muscle disorder characterized by progressive, irreversible loss of cardiac and skeletal muscular function. Muscular enlargement in DMD is attributed to oedema, due to the increased cytoplasmic Na+ concentration. The aim of this review was to present the current experience and emphasize the role of cardiovascular magnetic resonance (CMR) in the diagnosis of this condition. DMD patients' survival depends on ventilatory assistance, as respiratory muscle dysfunction was the most common cause of death in the past. Currently, due to improved ventilatory assistance, cardiomyopathy has become the main cause of death, even though clinically overt heart failure may be absent. CMR is the technique of choice to assess the pathophysiologic phenomena taking place in DMD, such as myocardial oedema and subepicardial fibrosis. The classic index to assess oedema is the T2-weighted short-tau inversion recovery (T2w-STIR), as it suppresses the signal from flowing blood and resident fat and enhances sensitivity to tissue fluid. Furthermore, CMR is the most reliable technique to detect and quantify fibrosis in DMD. Recently, the new indices T2, T1 mapping (native and postcontrast) and the extracellular volume (ECV) allow a more accurate approach of myocardial oedema and fibrosis. To conclude, the assessment of cardiac oedema and subepicardial fibrosis in the inferolateral wall of the left heart ventricle are the most important early finding in DMD with preserved ventricular function, and CMR, using both the classic and the new indices, is the best technique to detect and monitor these lesions. PMID- 29027212 TI - Complexity of intravenous iron nanoparticle formulations: implications for bioequivalence evaluation. AB - Intravenous iron formulations are a class of complex drugs that are commonly used to treat a wide variety of disease states associated with iron deficiency and anemia. Venofer(r) (iron-sucrose) is one of the most frequently used formulations, with more than 90% of dialysis patients in the United States receiving this formulation. Emerging data from global markets outside the United States, where many iron-sucrose similars or copies are available, have shown that these formulations may have safety and efficacy profiles that differ from the reference listed drug. This may be attributable to uncharacterized differences in physicochemical characteristics and/or differences in labile iron release. As bioequivalence evaluation guidance evolves, clinicians should be educated on these potential clinical issues before a switch to the generic formulation is made in the clinical setting. PMID- 29027213 TI - Protective effect of metoclopramide against organophosphate-induced apoptosis in the murine skin fibroblast L929. AB - This study was performed to evaluate the protective efficacy of metoclopramide (MCP) against the organophosphates paraoxon (POX)- and malathion (MLT)-induced apoptosis in the murine L929 skin fibroblasts. L929 cells were exposed to either POX (10 nm) or 1.0 MUm MLT in the absence and presence of increased concentrations of MCP. The protective effect of MCP on these organophosphate stimulated apoptotic events was evaluated by flow cytometry analysis after staining with annexin-V/propidium iodide, processing and activation of the executioner caspase-3, cleavage of the poly-ADP ribose polymerase, fragmentation of the nucleosomal DNA and disruption of the mitochondrial membrane potential (Deltapsi). Our results showed that increased doses of MCP alone (>=10 MUm) did not induce apoptosis or activation of caspase-3. Pretreatment of the cells with MCP attenuated all the apoptotic events triggered by the organophosphate compounds in a dose-dependent manner reaching ~70-80% protection when they were preincubated at 1 and 5 MUm of the drug before the addition of POX and MLT, respectively. Interestingly, MCP did not offer a significant protective effect against the cytotoxicity of tumor necrosis factor-alpha, cisplatinum, etoposide or paclitaxel, which stimulate apoptosis by various mechanisms, suggesting that the anti-apoptotic effect of the drug is specific to organophosphates. The strong and specific anti-apoptotic activity of subclinical doses of MCP against the cytotoxicity of organophosphate compounds suggests its potential clinical application in treating their poisoning. PMID- 29027214 TI - Development of an alternative zebrafish model for drug-induced intestinal toxicity. AB - An evaluation of intestinal toxicity is important because the mucosal lining of the gastrointestinal tract is the first barrier for oral xenobiotics. Until now, a rat model has been recommended as the standard intestinal toxicity model and the Caco-2 cell line, originated from a human colon adenocarcinoma, has been used as an alternative to this model, but there are limitations regarding cost effectiveness and the need for mimicry of the human system. In this study, we investigated whether zebrafish could be a valid alternative to rats and Caco-2 cells as an intestinal toxicity model. We focused on intestinal gene expression of cytochrome P450 3A65, oxidative stress, apoptosis, inflammation, and intestinal function. Reverse transcription-quantitative polymerase chain reaction analysis was conducted using three models: zebrafish, Sprague-Dawley rats and Caco-2 cells, and the transcript levels and patterns of indicator genes were analyzed in conjunction with histopathological changes. Our results suggested that representative intestinal toxicants, indomethacin, diclofenac and methotrexate, induced significant transcript level changes in marker genes such as CYP3A, inducible nitric oxide synthase, heme oxygenase 1, superoxide dismutase 1, glutathione peroxidase 1, BCL2 associated X, B-cell lymphoma 2, caspase 9, tumor protein p53, nuclear factor-kappaB, interleukin-1beta, tumor necrosis factor-alphaalpha and toll-like receptor 2 in the zebrafish model as in the rat and Caco-2 cells models. These results suggest that zebrafish model is sufficiently worth developing as an intestinal toxicity model that can replace or compensate the rat model or Caco-2 cell model. PMID- 29027215 TI - Death, danger & immunity: Fundamental mechanisms linking pathogenic or iatrogenic cell death events to immune responses. PMID- 29027216 TI - The long pentraxin PTX3: A prototypical sensor of tissue injury and a regulator of homeostasis. AB - Tissue damage frequently occurs. The immune system senses it and enforces homeostatic responses that lead to regeneration and repair. The synthesis of acute phase molecules is emerging as a crucial event in this program. The prototypic long pentraxin PTX3 orchestrates the recruitment of leukocytes, stabilizes the provisional matrix in order to facilitate leukocyte and stem progenitor cells trafficking, promotes swift and safe clearance of dying cells and of autoantigens, limiting autoimmunity and protecting the vasculature. These non-redundant actions of PTX3 are necessary for the resolution of inflammation. Recent studies have highlighted the mechanisms by which PTX3 adapts the functions of innate immune cells, orchestrates tissue repair and contributes to select the appropriate acquired immune response in various tissues. Conversely, PTX3 continues to be produced in diseases where the inflammatory response does not resolve. It is therefore a valuable biomarker for more precise and personalized stratification of patients, often independently predicting clinical evolution and outcome. There is strong promise for novel therapies based on understanding the mechanisms with which PTX3 plays its homeostatic role, especially in regulating leukocyte migration and the resolution of inflammatory processes. PMID- 29027217 TI - Danger signals: Chemotherapy enhancers? AB - Endogenous danger signals are molecules normally present in a given cell compartment that are rapidly released following cell stress and induce immune responses. We and others have shown that dying tumor cells treated with some chemotherapies are able to induce anticancer immune responses, which rely on their release of danger signals such as the nuclear protein HMGB1. DNA can also be released from chemotherapy-treated tumor cells, act as a danger signal, and boost anticancer immunity. While the immunostimulatory properties of DNA have been identified for decades, the recent discovery of a novel family of receptors, cytosolic DNA sensors, has provided a novel impetus not only to understand how chemotherapy can trigger anticancer immune responses but also to exploit DNA derived molecules for therapeutic use. We will here discuss the molecular characteristics of endogenous danger signals released from chemotherapy-treated tumor cells and focus on the clinical relevance of using these danger signals in chemoimmunotherapeutic strategies against cancer. PMID- 29027218 TI - Cell death and immunity in cancer: From danger signals to mimicry of pathogen defense responses. AB - The immunogenicity of cancer cells is an emerging determinant of anti-cancer immunotherapy. Beyond developing immunostimulatory regimens like dendritic cell based vaccines, immune-checkpoint blockers, and adoptive T-cell transfer, investigators are beginning to focus on the immunobiology of dying cancer cells and its relevance for the success of anticancer immunotherapies. It is currently accepted that cancer cells may die in response to anti-cancer therapies through regulated cell death programs, which may either repress or increase their immunogenic potential. In particular, the induction of immunogenic cancer cell death (ICD), which is hallmarked by the emission of damage-associated molecular patterns (DAMPs); molecules analogous to pathogen-associated molecular patterns (PAMPs) acting as danger signals/alarmins, is of great relevance in cancer therapy. These ICD-associated danger signals favor immunomodulatory responses that lead to tumor-associated antigens (TAAs)-directed T-cell immunity, which paves way for the removal of residual, treatment-resistant cancer cells. It is also emerging that cancer cells succumbing to ICD can orchestrate "altered-self mimicry" i.e. mimicry of pathogen defense responses, on the levels of nucleic acids and/or chemokines (resulting in type I interferon/IFN responses or pathogen response-like neutrophil activity). In this review, we exhaustively describe the main molecular, immunological, preclinical, and clinical aspects of immunosuppressive cell death or ICD (with respect to apoptosis, necrosis and necroptosis). We also provide an extensive historical background of these fields, with special attention to the self/non-self and danger models, which have shaped the field of cell death immunology. PMID- 29027220 TI - Metabolic regulation of macrophage phenotype and function. AB - Studies in the last 20 years have given us a remarkable insight into the functional and phenotypic diversity of macrophages which reflects their integral role in host defence, homeostasis and pathogenesis. Mouse genetics, transcriptomic and epigenetic studies have provided an ontogenic and molecular perspective to the phenotypic diversity of these cells. Recently, metabolic studies have revealed the crucial role of metabolism and metabolites in shaping the phenotype and function of macrophages. Evidence pertaining to this aspect will be reviewed here. PMID- 29027221 TI - Abscopal, immunological effects of radiotherapy: Narrowing the gap between clinical and preclinical experiences. AB - Radiotherapy-despite being a local therapy that meanwhile is characterized by an impressively high degree of spatial accuracy-can stimulate systemic phenomena which occasionally lead to regression and rejection of non-irradiated, distant tumor lesions. These abscopal effects of local irradiation have been observed in sporadic clinical case reports since the beginning of the 20th century, and extensive preclinical work has contributed to identify systemic anti-tumor immune responses as the underlying driving forces. Although abscopal tumor regression still remains a rare event in the radiotherapeutic routine, increasing numbers of cases are being reported, particularly since the clinical implementation of immune checkpoint inhibiting agents. Accordingly, interests to systematically exploit the therapeutic potential of radiotherapy-stimulated systemic responses are constantly growing. The present review briefly delineates the history of radiotherapy-induced abscopal effects and the activation of systemic anti-tumor immune responses by local irradiation. We discuss preclinical and clinical reports with specific focus on the corresponding controversies, and we propose issues that should be addressed in the future in order to narrow the gap between preclinical knowledge and clinical experiences. PMID- 29027219 TI - Death begets a new beginning. AB - Cell death is a perpetual feature of tissue microenvironments; each day under homeostatic conditions, billions of cells die and must be swiftly cleared by phagocytes. However, cell death is not limited to this natural turnover-apoptotic cell death can be induced by infection, inflammation, or severe tissue injury. Phagocytosis of apoptotic cells is thus coupled to specific functions, from the induction of growth factors that can stimulate the replacement of dead cells to the promotion of tissue repair or tissue remodeling in the affected site. In this review, we outline the mechanisms by which phagocytes sense apoptotic cell death and discuss how phagocytosis is integrated with environmental cues to drive appropriate responses. PMID- 29027224 TI - Immunomodulation by ionizing radiation-impact for design of radio-immunotherapies and for treatment of inflammatory diseases. AB - Ionizing radiation is often regarded as an element of danger. But, danger responses on the cellular and molecular level are often beneficial with regard to the induction of anti-tumor immunity and for amelioration of inflammation. We outline how in dependence of radiation dose and fraction, radiation itself-and especially in combination with immune modulators-impacts on the innate and adaptive immune system. Focus is set on radiation-induced changes of the tumor cell phenotype and the cellular microenvironment including immunogenic cancer cell death. Mechanisms how anti-tumor immune responses are triggered by radiotherapy in combination with hyperthermia, inhibition of apoptosis, the adjuvant AnnexinA5, or vaccination with high hydrostatic pressure-killed autologous tumor cells are discussed. Building on this, feasible multimodal radio immunotherapy concepts are reviewed including overcoming immune suppression by immune checkpoint inhibitors and by targeting TGF-beta. Since radiation-induced tissue damage, inflammation, and anti-tumor immune responses are interconnected, the impact of lower doses of radiation on amelioration of inflammation is outlined. Closely meshed immune monitoring concepts based on the liquid biopsy blood are suggested for prognosis and prediction of cancer and non-cancer inflammatory diseases. Finally, challenges and visions for the design of cancer radio-immunotherapies and for treatment of benign inflammatory diseases are given. PMID- 29027225 TI - Necroptotic cell death in anti-cancer therapy. AB - Necroptosis is one the best-characterized forms of regulated necrosis. Necroptosis is mediated by the kinase activities of receptor interacting protein kinase-1 and receptor interacting protein kinase-3, which eventually lead to the activation of mixed lineage kinase domain-like. Necroptosis is characterized by rapid permeabilization of the plasma membrane, which is associated with the release of the cell content and subsequent exposure of damage-associated molecular patterns (DAMPs) and cytokines/chemokines. This release underlies the immunogenic nature of necroptotic cancer cells and their ability to induce efficient anti-tumor immunity. Triggering necroptosis has become especially important in experimental cancer treatments as an alternative to triggering apoptosis because one of the hallmarks of cancer is the blockade or evasion of apoptosis. In this review, we discuss recent advances in necroptosis research and the functional consequences of necroptotic cancer cell death, with focus on its immunogenicity and its role in the activation of anti-tumor immunity. Next, we discuss the molecular mechanisms of phosphatidylserine exposure during necroptosis and its role in the recognition of necroptotic cells. We also highlight the complex role of the necroptotic pathway in tumor promotion and suppression and in metastasis. Future studies will show whether necroptosis is truly a better strategy to overcome apoptosis resistance and provide the insights needed for development of novel treatment strategies for cancer. PMID- 29027226 TI - Efferocytosis of dying cells differentially modulate immunological outcomes in tumor microenvironment. AB - Programmed cell death (apoptosis) is an integral part of tissue homeostasis in complex organisms, allowing for tissue turnover, repair, and renewal while simultaneously inhibiting the release of self antigens and danger signals from apoptotic cell-derived constituents that can result in immune activation, inflammation, and autoimmunity. Unlike cells in culture, the physiological fate of cells that die by apoptosis in vivo is their rapid recognition and engulfment by phagocytic cells (a process called efferocytosis). To this end, apoptotic cells express specific eat-me signals, such as externalized phosphatidylserine (PS), that are recognized in a specific context by receptors to initiate signaling pathways for engulfment. The importance of carefully regulated recognition and clearance pathways is evident in the spectrum of inflammatory and autoimmune disorders caused by defects in PS receptors and signaling molecules. However, in recent years, several additional cell death pathways have emerged, including immunogenic cell death, necroptosis, pyroptosis, and netosis that interweave different cell death pathways with distinct innate and adaptive responses from classical apoptosis that can shape long-term host immunity. In this review, we discuss the role of different cell death pathways in terms of their immune potential outcomes specifically resulting in specific cell corpse/phagocyte interactions (phagocytic synapses) that impinge on host immunity, with a main emphasis on tolerance and cancer immunotherapy. PMID- 29027227 TI - Missing in action-The meaning of cell death in tissue damage and inflammation. AB - Billions of cells die every day in higher organisms as part of the normal process of tissue homeostasis. During special conditions like in development, acute infections, mechanical injuries, and immunity, cell death is a common denominator and it exerts profound effects in the outcome of these scenarios. To prevent the accumulation of aged, superfluous, infected, damaged and dead cells, professional phagocytes act in a rapid and efficient manner to clear the battle field and avoid spread of the destruction. Neutrophils are the most abundant effector immune cells that extravasate into tissues and can turn injured tissues into gory battle fields. In peace times, neutrophils tend to patrol tissues without provoking inflammatory reactions. We discuss in this review actual and forgotten knowledge about the meaning of cell death during homeostatic processes and drive the attention to the importance of the action of neutrophils during patrolling and for the maintenance or recovery of the homeostatic state once the organism gets attacked or injured, respectively. In this fashion, we disclose several disease conditions that arise as collateral damage of physiological responses to death. PMID- 29027223 TI - Inflammatory cell death in intestinal pathologies. AB - The intestinal tract is a site of intense immune cell activity that is poised to mount an effective response against a pathogen and yet maintain tolerance toward commensal bacteria and innocuous dietary antigens. The role of cell death in gut pathologies is particularly important as the intestinal epithelium undergoes self renewal every 4-7 days through a continuous process of cell death and cell division. Cell death is also required for removal of infected, damaged, and cancerous cells. Certain forms of cell death trigger inflammation through release of damage-associated molecular patterns. Further, molecules involved in cell death decisions also moonlight as critical nodes in immune signaling. The manner of cell death is, therefore, highly instructive of the immunological consequences that ensue. Perturbations in cell death pathways can impact the regulation of the immune system with deleterious consequences. In this review, we discuss the various forms of cell death with a special emphasis on lytic cell death pathways of pyroptosis and necroptosis and their implications in inflammation and cancer in the gut. Understanding the implications of distinct cell death pathways will help in the development of therapeutic interventions in intestinal pathologies. PMID- 29027228 TI - High-mobility group box 1 protein orchestrates responses to tissue damage via inflammation, innate and adaptive immunity, and tissue repair. AB - A single protein, HMGB1, directs the triggering of inflammation, innate and adaptive immune responses, and tissue healing after damage. HMGB1 is the best characterized damage-associated molecular pattern (DAMP), proteins that are normally inside the cell but are released after cell death, and allow the immune system to distinguish between antigens that are dangerous or not. Notably, cells undergoing severe stress actively secrete HMGB1 via a dedicated secretion pathway: HMGB1 is relocated from the nucleus to the cytoplasm and then to secretory lysosomes or directly to the extracellular space. Extracellular HMGB1 (either released or secreted) triggers inflammation and adaptive immunological responses by switching among multiple oxidation states, which direct the mutually exclusive choices of different binding partners and receptors. Immune cells are first recruited to the damaged tissue and then activated; thereafter, HMGB1 supports tissue repair and healing, by coordinating the switch of macrophages to a tissue-healing phenotype, activation and proliferation of stem cells, and neoangiogenesis. Inevitably, HMGB1 also orchestrates the support of stressed but illegitimate tissues: tumors. Concomitantly, HMGB1 enhances the immunogenicity of mutated proteins in the tumor (neoantigens), promoting anti-tumor responses and immunological memory. Tweaking the activities of HMGB1 in inflammation, immune responses and tissue repair could bring large rewards in the therapy of multiple medical conditions, including cancer. PMID- 29027222 TI - Alarmins and immunity. AB - More than a decade has passed since the conceptualization of the "alarmin" hypothesis. The alarmin family has been expanding in terms of both number and the concept. It has recently become clear that alarmins play important roles as initiators and participants in a diverse range of physiological and pathophysiological processes such as host defense, regulation of gene expression, cellular homeostasis, wound healing, inflammation, allergy, autoimmunity, and oncogenesis. Here, we provide a general view on the participation of alarmins in the induction of innate and adaptive immune responses, as well as their contribution to tumor immunity. PMID- 29027229 TI - Extracellular nucleosides and nucleotides as immunomodulators. AB - Some anticancer agents induce immunogenic cell death that is accompanied by the emission of danger signals into the tumor microenvironment, thus attracting and activating innate immune effectors and finally inducing anticancer immunity. The release of extracellular nucleosides such as adenosine triphosphate (ATP) from the tumor in response to anticancer therapy plays a pivotal role in the attraction of antigen presenting cells and the activation of inflammasome mediated proinflammatory cascades. In contrast, the ectonucleotidase-catalyzed phosphohydrolysis of nucleotides to nucleosides reduces the extracellular availability of nucleotides, hence limiting the recruitment and activation of antigen-presenting cells. In addition, the (over-)production of nucleosides including adenosine by ectonucleotidases located on cancer cells and regulatory T cells can induce immunosuppression, as adenosine directly inhibits the proliferation and activation of effector T cells. Here, we discuss the importance of death metabolites for immunomodulation in general, and the role of the purine nucleotide ATP and its derivative adenosine in particular. In addition, we provide an overview on therapeutic interventions that reinstate tumor immunogenicity in conditions where nucleotide-dependent immunostimulation is obstructed. PMID- 29027230 TI - Immunogenic stress and death of cancer cells: Contribution of antigenicity vs adjuvanticity to immunosurveillance. AB - Cancer cells are subjected to constant selection by the immune system, meaning that tumors that become clinically manifest have managed to subvert or hide from immunosurveillance. Immune control can be facilitated by induction of autophagy, as well as by polyploidization of cancer cells. While autophagy causes the release of ATP, a chemotactic signal for myeloid cells, polyploidization can trigger endoplasmic reticulum stress with consequent exposure of the "eat-me" signal calreticulin on the cell surface, thereby facilitating the transfer of tumor antigens into dendritic cells. Hence, both autophagy and polyploidization cause the emission of adjuvant signals that ultimately elicit immune control by CD8+ T lymphocytes. We investigated the possibility that autophagy and polyploidization might also affect the antigenicity of cancer cells by altering the immunopeptidome. Mass spectrometry led to the identification of peptides that were presented on major histocompatibility complex (MHC) class I molecules in an autophagy-dependent fashion or that were specifically exposed on the surface of polyploid cells, yet lost upon passage of such cells through immunocompetent (but not immunodeficient) mice. However, the preferential recognition of autophagy competent and polyploid cells by the innate and cellular immune systems did not correlate with the preferential recognition of such peptides in vivo. Moreover, vaccination with such peptides was unable to elicit tumor growth-inhibitory responses in vivo. We conclude that autophagy and polyploidy increase the immunogenicity of cancer cells mostly by affecting their adjuvanticity rather than their antigenicity. PMID- 29027231 TI - The renaissance of anti-neoplastic immunity from tumor cell demise. AB - Cancer therapies can temporarily reduce tumor burdens by inducing malignant cell death. However, cancer cure is still far from realization because tumors often gain resistance to current treatment and eventually relapse. Accumulating evidence suggests that successful cancer interventions require anti-tumor immunity. Therapy-induced cell stress responses ultimately result in one or more cell death modalities, including apoptosis, autophagy, necroptosis, and pyroptosis. These irreversible dying processes are accompanied by active or passive release of cell death-associated molecular patterns (CDAMPs), which can be sensed by corresponding pattern recognition receptors (PRR) on tumor infiltrating immune cells. This crosstalk with the immune system can reawaken immune surveillance in the tumor microenvironment (TME). This review focuses on immune-modulatory properties of anti-cancer regimens and CDAMP-mediated communications between cell stress responses and the immune contexture of TME. In addition, we describe how immunogenic cell death can elicit strong and durable anti-tumor immune responses. PMID- 29027234 TI - Reply to "Comment on 'Dosimetric comparison of stopping power calibration with dual-energy CT and single-energy CT in proton therapy treatment planning' [Med. Phys. 43(6), 2845-2854 (2016)]". PMID- 29027233 TI - Dysregulated cellular functions and cell stress pathways provide critical cues for activating and targeting natural killer cells to transformed and infected cells. AB - Natural killer (NK) cells recognize and kill cancer cells and infected cells by engaging cell surface ligands that are induced preferentially or exclusively on these cells. These ligands are recognized by activating receptors on NK cells, such as NKG2D. In addition to activation by cell surface ligands, the acquisition of optimal effector activity by NK cells is driven in vivo by cytokines and other signals. This review addresses a developing theme in NK cell biology: that NK activating ligands on cells, and the provision of cytokines and other signals that drive high effector function in NK cells, are driven by abnormalities that arise from transformation or the infected state. The pathways include genomic damage, which causes self DNA to be exposed in the cytosol of affected cells, where it activates the DNA sensor cGAS. The resulting signaling induces NKG2D ligands and also mobilizes NK cell activation. Other key pathways that regulate NKG2D ligands include PI-3 kinase activation, histone acetylation, and the integrated stress response. This review summarizes the roles of these pathways and their relevance in both viral infections and cancer. PMID- 29027235 TI - Low-dose CT for the detection and classification of metastatic liver lesions: Results of the 2016 Low Dose CT Grand Challenge. AB - PURPOSE: Using common datasets, to estimate and compare the diagnostic performance of image-based denoising techniques or iterative reconstruction algorithms for the task of detecting hepatic metastases. METHODS: Datasets from contrast-enhanced CT scans of the liver were provided to participants in an NIH-, AAPM- and Mayo Clinic-sponsored Low Dose CT Grand Challenge. Training data included full-dose and quarter-dose scans of the ACR CT accreditation phantom and 10 patient examinations; both images and projections were provided in the training data. Projection data were supplied in a vendor-neutral standardized format (DICOM-CT-PD). Twenty quarter-dose patient datasets were provided to each participant for testing the performance of their technique. Images were provided to sites intending to perform denoising in the image domain. Fully preprocessed projection data and statistical noise maps were provided to sites intending to perform iterative reconstruction. Upon return of the denoised or iteratively reconstructed quarter-dose images, randomized, blinded evaluation of the cases was performed using a Latin Square study design by 11 senior radiology residents or fellows, who marked the locations of identified hepatic metastases. Markings were scored against reference locations of clinically or pathologically demonstrated metastases to determine a per-lesion normalized score and a per-case normalized score (a faculty abdominal radiologist established the reference location using clinical and pathological information). Scores increased for correct detections; scores decreased for missed or incorrect detections. The winner for the competition was the entry that produced the highest total score (mean of the per-lesion and per-case normalized score). Reader confidence was used to compute a Jackknife alternative free-response receiver operating characteristic (JAFROC) figure of merit, which was used for breaking ties. RESULTS: 103 participants from 90 sites and 26 countries registered to participate. Training data were shared with 77 sites that completed the data sharing agreements. Subsequently, 41 sites downloaded the 20 test cases, which included only the 25% dose data (CTDIvol = 3.0 +/- 1.8 mGy, SSDE = 3.5 +/- 1.3 mGy). 22 sites submitted results for evaluation. One site provided binary images and one site provided images with severe artifacts; cases from these sites were excluded from review and the participants removed from the challenge. The mean (range) per-lesion and per-case normalized scores were -24.2% (-75.8%, 3%) and 47% (10%, 70%), respectively. Compared to reader results for commercially reconstructed quarter-dose images with no noise reduction, 11 of the 20 sites showed a numeric improvement in the mean JAFROC figure of merit. Notably two sites performed comparably to the reader results for full-dose commercial images. The study was not designed for these comparisons, so wide confidence intervals surrounded these figures of merit and the results should be used only to motivate future testing. CONCLUSION: Infrastructure and methodology were developed to rapidly estimate observer performance for liver metastasis detection in low-dose CT examinations of the liver after either image-based denoising or iterative reconstruction. The results demonstrated large differences in detection and classification performance between noise reduction methods, although the majority of methods provided some improvement in performance relative to the commercial quarter-dose images with no noise reduction applied. PMID- 29027236 TI - A fast method to emulate an iterative POCS image reconstruction algorithm. AB - PURPOSE: Iterative image reconstruction algorithms are commonly used to optimize an objective function, especially when the objective function is nonquadratic. Generally speaking, the iterative algorithms are computationally inefficient. This paper presents a fast algorithm that has one backprojection and no forward projection. METHODS: This paper derives a new method to solve an optimization problem. The nonquadratic constraint, for example, an edge-preserving denoising constraint is implemented as a nonlinear filter. The algorithm is derived based on the POCS (projections onto projections onto convex sets) approach. A windowed FBP (filtered backprojection) algorithm enforces the data fidelity. An iterative procedure, divided into segments, enforces edge-enhancement denoising. Each segment performs nonlinear filtering. RESULTS: The derived iterative algorithm is computationally efficient. It contains only one backprojection and no forward projection. Low-dose CT data are used for algorithm feasibility studies. The nonlinearity is implemented as an edge-enhancing noise-smoothing filter. CONCLUSIONS: The patient studies results demonstrate its effectiveness in processing low-dose x ray CT data. This fast algorithm can be used to replace many iterative algorithms. PMID- 29027237 TI - Erratum: "A multichannel block-matching denoising algorithm for spectral photon counting CT images" [Med. Phys. 44, 2447-2452 (2017)]. PMID- 29027238 TI - A deep convolutional neural network using directional wavelets for low-dose X-ray CT reconstruction. AB - PURPOSE: Due to the potential risk of inducing cancer, radiation exposure by X ray CT devices should be reduced for routine patient scanning. However, in low dose X-ray CT, severe artifacts typically occur due to photon starvation, beam hardening, and other causes, all of which decrease the reliability of the diagnosis. Thus, a high-quality reconstruction method from low-dose X-ray CT data has become a major research topic in the CT community. Conventional model-based de-noising approaches are, however, computationally very expensive, and image domain de-noising approaches cannot readily remove CT-specific noise patterns. To tackle these problems, we want to develop a new low-dose X-ray CT algorithm based on a deep-learning approach. METHOD: We propose an algorithm which uses a deep convolutional neural network (CNN) which is applied to the wavelet transform coefficients of low-dose CT images. More specifically, using a directional wavelet transform to extract the directional component of artifacts and exploit the intra- and inter- band correlations, our deep network can effectively suppress CT-specific noise. In addition, our CNN is designed with a residual learning architecture for faster network training and better performance. RESULTS: Experimental results confirm that the proposed algorithm effectively removes complex noise patterns from CT images derived from a reduced X-ray dose. In addition, we show that the wavelet-domain CNN is efficient when used to remove noise from low-dose CT compared to existing approaches. Our results were rigorously evaluated by several radiologists at the Mayo Clinic and won second place at the 2016 "Low-Dose CT Grand Challenge." CONCLUSIONS: To the best of our knowledge, this work is the first deep-learning architecture for low-dose CT reconstruction which has been rigorously evaluated and proven to be effective. In addition, the proposed algorithm, in contrast to existing model-based iterative reconstruction (MBIR) methods, has considerable potential to benefit from large data sets. Therefore, we believe that the proposed algorithm opens a new direction in the area of low-dose CT research. PMID- 29027232 TI - Immune recognition of irradiated cancer cells. AB - Ionizing irradiation has been extensively employed for the clinical management of solid tumors, with therapeutic or palliative intents, for decades. Until recently, radiation therapy (RT) was believed to mediate antineoplastic activity mostly (if not only) as a consequence of cancer cell-intrinsic effects. Indeed, the macromolecular damage imposed to malignant cells by RT initiates one or multiple signal transduction cascades that drive a permanent proliferative arrest (cellular senescence) or regulated cell death. Both these phenomena show a rather linear dose-response correlation. However, RT also mediates consistent immunological activity, not only as an "on-target effect" originating within irradiated cancer cells, but also as an "off-target effect" depending on the interaction between RT and stromal, endothelial, and immune components of the tumor microenvironment. Interestingly, the immunological activity of RT does not exhibit linear dose-response correlation. Here, we discuss the mechanisms whereby RT alters the capacity of the immune system to recognize and eliminate irradiated cancer cells, either as an "on-target" or as on "off-target" effect. In particular, we discuss the antagonism between the immunostimulatory and immunosuppressive effects of RT as we delineate combinatorial strategies to boost the former at the expenses of the latter. PMID- 29027239 TI - Erratum: "A novel perfused Bloch-McConnell simulator for analyzing the accuracy of dynamic hyperpolarized MRS" [Med. Phys. V43, 854-864(2016)]. PMID- 29027240 TI - Low-dose CT reconstruction using spatially encoded nonlocal penalty. AB - PURPOSE: Computed tomography (CT) is one of the most used imaging modalities for imaging both symptomatic and asymptomatic patients. However, because of the high demand for lower radiation dose during CT scans, the reconstructed image can suffer from noise and artifacts due to the trade-off between the image quality and the radiation dose. The purpose of this paper is to improve the image quality of quarter dose images and to select the best hyperparameters using the regular dose image as ground truth. METHODS: We first generated the axially stacked two dimensional sinograms from the multislice raw projections with flying focal spots using a single slice rebinning method, which is an axially approximate method to provide simple implementation and efficient memory usage. To improve the image quality, a cost function containing the Poisson log-likelihood and spatially encoded nonlocal penalty is proposed. Specifically, an ordered subsets separable quadratic surrogates (OS-SQS) method for the log-likelihood is exploited and the patch-based similarity constraint with a spatially variant factor is developed to reduce the noise significantly while preserving features. Furthermore, we applied the Nesterov's momentum method for acceleration and the diminishing number of subsets strategy for noise consistency. Fast nonlocal weight calculation is also utilized to reduce the computational cost. RESULTS: Datasets given by the Low Dose CT Grand Challenge were used for the validation, exploiting the training datasets with the regular and quarter dose data. The most important step in this paper was to fine-tune the hyperparameters to provide the best image for diagnosis. Using the regular dose filtered back-projection (FBP) image as ground truth, we could carefully select the hyperparameters by conducting a bias and standard deviation study, and we obtained the best images in a fixed number of iterations. We demonstrated that the proposed method with well selected hyperparameters improved the image quality using quarter dose data. The quarter dose proposed method was compared with the regular dose FBP, quarter dose FBP, and quarter dose l1 -based 3-D TV method. We confirmed that the quarter dose proposed image was comparable to the regular dose FBP image and was better than images using other quarter dose methods. The reconstructed test images of the accreditation (ACR) CT phantom and 20 patients data were evaluated by radiologists at the Mayo clinic, and this method was awarded first place in the Low Dose CT Grand Challenge. CONCLUSION: We proposed the iterative CT reconstruction method using a spatially encoded nonlocal penalty and ordered subsets separable quadratic surrogates with the Nesterov's momentum and diminishing number of subsets. The results demonstrated that the proposed method with fine-tuned hyperparameters can significantly improve the image quality and provide accurate diagnostic features at quarter dose. The performance of the proposed method should be further improved for small lesions, and a more thorough evaluation using additional clinical data is required in the future. PMID- 29027241 TI - Spatial distribution of kidney disease in the contaminated site of Taranto (Italy). AB - BACKGROUND: Exposure to heavy metals has been associated with kidney disease. We investigated the spatial distribution of kidney disease in the industrially contaminated site of Taranto. METHODS: Cases were subjects with a first hospital discharge diagnosis of kidney disease. Cases affected by specific comorbidities were excluded. Standardized Hospitalization Ratios (SHRs) were computed for low/high exposure area and for modeled spatial distribution of cadmium and fine particulate matter. RESULT: Using the high/low exposure approach, in subjects aged 20-59 years residing in the high exposure area a significant excess of hospitalization was observed in males and a non-significant excess in females. No excesses were observed in subjects aged 60 years and over. The analysis by the modeling approach did not show a significant association with the greatest pollution impact area. CONCLUSION: Due to the excesses of hospitalization observed in the high/low exposure approach, a continuing epidemiological surveillance of residents and occupational groups is warranted. PMID- 29027242 TI - Optimal dose and duration of amoxicillin-plus-metronidazole as an adjunct to non surgical periodontal therapy: A systematic review and meta-analysis of randomized, placebo-controlled trials. AB - AIM: This systematic review aimed to determine the optimum dose and duration of amoxicillin-plus-metronidazole prescribed as an adjunct to non-surgical treatment of periodontitis. METHODS: Electronic searching identified 376 records, of which 18 were eligible blinded, randomized placebo-controlled trials. The primary outcomes assessed were periodontal pocket depth and clinical attachment level at 3 months, and secondary outcomes were adverse events and compliance. Subgroup analyses were conducted to compare lower and higher doses, and 7- and 14-day courses. RESULTS: Meta-analysis showed a small beneficial effect of adjunctive amoxicillin-plus-metronidazole for each primary outcome, but there was <0.1 mm variation with antibiotic dose or duration. Risk differences for adverse events in the higher dose and longer duration groups were minimally greater (0.04 and 0.05, respectively), and there was one report of anaphylaxis; 1.3% of patients were not fully compliant. CONCLUSION: There was no clinically meaningful difference between different doses or duration of amoxicillin-plus-metronidazole at 3 months post-treatment. Without compelling evidence to suggest that any one regimen performed superiorly, principles of responsible antibiotic use generally recommend the highest dose for the shortest duration of time to reduce the risk of antibiotic resistance. Therefore, a 7-day regimen of 500/500 mg or 500/400 mg of amoxicillin and metronidazole would be most appropriate. PMID- 29027243 TI - Phenytoin: its potential as neuroprotective and retinoprotective drug. PMID- 29027244 TI - Unmanned aerial vehicles in construction and worker safety. AB - Applications of unmanned aerial vehicles (UAVs) for military, recreational, public, and commercial uses have expanded significantly in recent years. In the construction industry, UAVs are used primarily for monitoring of construction workflow and job site logistics, inspecting construction sites to assess structural integrity, and for maintenance assessments. As is the case with other emerging technologies, occupational safety assessments of UAVs lag behind technological advancements. UAVs may create new workplace hazards that need to be evaluated and managed to ensure their safe operation around human workers. At the same time, UAVs can perform dangerous tasks, thereby improving workplace safety. This paper describes the four major uses of UAVs, including their use in construction, the potential risks of their use to workers, approaches for risk mitigation, and the important role that safety and health professionals can play in ensuring safe approaches to the their use in the workplace. PMID- 29027246 TI - Medicinal Attributes of Thienopyrimidine Based Scaffold Targeting Tyrosine Kinases and Their Potential Anticancer Activities. AB - Thienopyrimidines (TP), comprising a thiophene ring fused with pyrimidine, are famous bioisosteres to purines, an essential part of the human metabolome. This scaffold has become an interesting structural element in the development of pharmaceutical compounds, due to their wide spectrum applications as cytotoxic agents against different types of human cancer cell lines, cGMP phosphodiesterase inhibitors, and anti-viral, anti-inflammatory, and anti-microbial agents. The structural similarity of this scaffold with adenine made it an excellent moiety to be used in the design of kinase inhibitors. This review focuses on the chemistry of thienopyrimidine derivatives, their potential activities against various kinases, and their structure-activity relationship studies. PMID- 29027247 TI - Wednesday's Meeting Really Is on Friday: A Meta-Analysis and Evaluation of Ambiguous Spatiotemporal Language. AB - Experimental work has shown that spatial experiences influence spatiotemporal metaphor use. In these studies, participants are asked a question that yields different responses depending on the metaphor participants use. It has been claimed that English speakers are equally likely to respond with either variant in the absence of priming. Related studies testing non-spatial experiences demonstrate varied results with a wide range of primes. Here, the effects of eye movement and stimuli presentation modality on comprehension of this question are investigated in different formats. In addition, the results of prior reported controls are re-analyzed in a meta-analysis to verify reliable ambiguity of the test question. Results suggest that English speakers have a baseline preference for the Moving Ego metaphor variant, with a stronger preference in verbal rather than written presentation. The findings have implications both for (re)interpretation of prior studies' results and future study designs. PMID- 29027245 TI - Epac-induced ryanodine receptor type 2 activation inhibits sodium currents in atrial and ventricular murine cardiomyocytes. AB - Acute RyR2 activation by exchange protein directly activated by cAMP (Epac) reversibly perturbs myocyte Ca2+ homeostasis, slows myocardial action potential conduction, and exerts pro-arrhythmic effects. Loose patch-clamp studies, preserving in vivo extracellular and intracellular conditions, investigated Na+ current in intact cardiomyocytes in murine atrial and ventricular preparations following Epac activation. Depolarising steps to varying test voltages activated typical voltage-dependent Na+ currents. Plots of peak current against depolarisation from resting potential gave pretreatment maximum atrial and ventricular currents of -20.23 +/- 1.48 (17) and -29.8 +/- 2.4 (10) pA/MUm2 (mean +/- SEM [n]). Challenge by 8-CPT (1 MUmol/L) reduced these currents to -11.21 +/- 0.91 (12) (P < .004) and -19.3 +/- 1.6 (11) pA/MUm2 (P < .04) respectively. Currents following further addition of the RyR2 inhibitor dantrolene (10 MUmol/L) (-19.91 +/- 2.84 (13) and -26.6 +/- 1.7 (17)), and dantrolene whether alone ( 19.53 +/- 1.97 (8) and -27.6 +/- 1.9 (14)) or combined with 8-CPT (-19.93 +/- 2.59 (12) and -29.9 +/- 2.5(11)), were indistinguishable from pretreatment values (all P >> .05). Assessment of the inactivation that followed by applying subsequent steps to a fixed voltage 100 mV positive to resting potential gave concordant results. Half-maximal inactivation voltages and steepness factors, and time constants for Na+ current recovery from inactivation in double-pulse experiments, were similar through all the pharmacological conditions. Intracellular sharp microelectrode membrane potential recordings in intact Langendorff-perfused preparations demonstrated concordant variations in maximum rates of atrial and ventricular action potential upstroke, (dV/dt)max . We thus demonstrate an acute, reversible, Na+ channel inhibition offering a possible mechanism for previously reported pro-arrhythmic slowing of AP propagation following modifications of Ca2+ homeostasis, complementing earlier findings from chronic alterations in Ca2+ homeostasis in genetically-modified RyR2-P2328S hearts. PMID- 29027248 TI - Ursodeoxycholic acid protects cardiomyocytes against cobalt chloride induced hypoxia by regulating transcriptional mediator of cells stress hypoxia inducible factor 1alpha and p53 protein. AB - In hepatocytes, ursodeoxycholic acid (UDCA) activates cell signalling pathways such as p53, intracellular calcium ([Ca2+ ]i ), and sphingosine-1-phosphate (S1P) receptor via Galphai -coupled-receptor. Recently, UDCA has been shown to protect the heart against hypoxia-reoxygenation injury. However, it is not clear whether UDCA cardioprotection against hypoxia acts through a transcriptional mediator of cells stress, HIF-1alpha and p53. Therefore, in here, we aimed to investigate whether UDCA could protect cardiomyocytes (CMs) against hypoxia by regulating expression of HIF-1alpha, p53, [Ca2+ ]i , and S1P-Galphai -coupled-receptor. Cardiomyocytes were isolated from newborn rats (0-2 days), and hypoxia was induced by using cobalt chloride (CoCl2 ). Cardiomyocytes were treated with UDCA and cotreated with either FTY720 (S1P-receptor agonist) or pertussis toxin (PTX; Galphai inhibitor). Cells were subjected for proliferation assay, beating frequency, QuantiGene Plex assay, western blot, immunofluorescence, and calcium imaging. Our findings showed that UDCA counteracted the effects of CoCl2 on cell viability, beating frequency, HIF-1alpha, and p53 protein expression. We found that these cardioprotection effects of UDCA were similar to FTY720, S1P agonist. Furthermore, we observed that UDCA protects CMs against CoCl2 -induced [Ca2+ ]i dynamic alteration. Pharmacological inhibition of the Galphai -sensitive receptor did not abolish the cardioprotection of UDCA against CoCl2 detrimental effects, except for cell viability and [Ca2+ ]i . Pertussis toxin is partially effective in inhibiting UDCA protection against CoCl2 effects on CM cell viability. Interestingly, PTX fully inhibits UDCA cardioprotection on CoCl2 -induced [Ca2+ ]i dynamic changes. We conclude that UDCA cardioprotection against CoCl2 -induced hypoxia is similar to FTY720, and its actions are not fully mediated by the Galphai -coupled protein sensitive pathways. Ursodeoxycholic acid is the most hydrophilic bile acid and is currently used to treat liver diseases. Recently, UDCA is shown to have a cardioprotection effects; however, the mechanism of UDCA cardioprotection is still poorly understood. The current data generated were the first to show that UDCA is able to inhibit the activation of HIF-1alpha and p53 protein during CoCl2 -induced hypoxia in cardiomyocytes. This study provides an insight of UDCA mechanism in protecting cardiomyocytes against hypoxia. PMID- 29027250 TI - Revisiting the need for bone marrow examination in chronic myeloid leukemia. PMID- 29027249 TI - Development of an LC-MS/MS method for quantification of two isomeric phenylpropenes and the application to pharmacokinetic studies in rats. AB - Isomers beta-asarone and alpha-asarone have recently been demonstrated to have differential pharmacological activities. Here, we report an LC-MS/MS method developed using acetonitrile to extract two isomeric phenylpropenes from rat plasma. Separation was achieved using a XDB-C18 column (100 * 2.1 mm; i.d., 1.8 MUm) with a mobile phase of methanol-0.1% formic acid (55:45, v/v) at a flow rate of 0.3 mL/min. Calibration curves ranging from 5.20 to 2080 ng/mL for beta asarone and from 3.68 to 1470 ng/mL for alpha-asarone were linear (r2 >= 0.9938) with the lower limits of quantification being 5.20 and 3.68 ng/mL for both isomers. Intravenous administration of beta-asarone (2.22 mg/kg) and alpha asarone (2.36 mg/kg) in rats yielded half-lives of 13.40 +/- 4.11 and 28.88 +/- 7.82 min with clearance values of 0.196 +/- 0.062 mL/min/kg and 0.112 +/- 0.012 mL/min/kg for beta-asarone and alpha-asarone, respectively. PMID- 29027251 TI - New Biguanides as Anti-Diabetic Agents, Part II: Synthesis and Anti-Diabetic Properties Evaluation of 1-Arylamidebiguanide Derivatives as Agents of Insulin Resistant Type II Diabetes. AB - New 1-arylamidebiguanide hydrochloride salts were synthesized via reaction of hydrazide derivatives with dicyandiamide in acidic medium. The structure of the obtained derivatives was characterized by spectroscopic and elemental analysis tools. The anti-diabetic properties of the synthesized compounds were determined. Oral treatment of hyperglycemic rats with the synthesized biguanide derivatives showed a significant decrease of the elevated glucose in comparison with the anti diabetic standard drug, metformin. The effects of the synthesized biguanide derivatives on the diabetic properties regarding liver function enzyme activities (AST, ALT, and ALP), lipid profiles (TC, TG, and TL), lipid peroxide, and nitrous oxide as well as histopathological characteristics were investigated and discussed. PMID- 29027252 TI - The athlete's hematological response to hypoxia: A meta-analysis on the influence of altitude exposure on key biomarkers of erythropoiesis. AB - Altitude training is associated with changes in blood markers, which can confound results of the Athlete?s Biological Passport (ABP). This meta-analysis aims to describe the fluctuations during- and post-altitude in key ABP variables; hemoglobin concentration ([Hb]), square-root transformed reticulocyte percentage (sqrt(retic%)) and the OFF-score. Individual de-identified raw data were provided from 17 studies. Separate linear mixed effects analyses were performed for delta values from baseline for [Hb], sqrt(retic%) and OFF-score, by altitude phase (during and post). Mixed models were fitted with the hierarchical structure: study and subject within study as random effects. Delta values as response variables and altitude dose (in kilometer hours; km.hr = altitude (m) / 1000 x hours), sex, age, protocol and baseline values as fixed effects. Allowances were made for potential autocorrelation. Within two days at natural altitude [Hb] rapidly increased. Subsequent delta [Hb] values increased with altitude dose, reaching a plateau of 0.94 g/dL [95%CI (0.69, 1.20)] at ~1000 km.hr. Delta sqrt(retic%) and OFF-score were the first to identify an erythrocyte response, with respective increases and decreases observed within 100 to 200 km.hr. Post altitude, [Hb] remained elevated for two weeks. Delta sqrt(retic%) declined below baseline, the magnitude of change was dependent on altitude dose. Baseline values were a significant covariate (p<0.05). The response to altitude is complex resulting in a wide range of individual responses, influenced primarily by altitude dose and baseline values. Improved knowledge of the plausible hematological variations during- and post-altitude provides fundamental information for both the ABP expert and sports physician. PMID- 29027253 TI - The nose as a predilection site of pemphigus. PMID- 29027254 TI - Lymphoplasmacytoid cytology in plasma cell leukemia. PMID- 29027256 TI - Integrated in silico and in vivo approaches to investigate effects of BDE-99 mediated by the nuclear receptors on developing zebrafish. AB - One of the most abundant polybrominated diphenyl ethers (PBDEs) is 2,2',4,4',5 pentabromodiphenyl ether (BDE-99), which persists and potentially bioaccumulates in aquatic wildlife. Previous studies in mammals have shown that BDE-99 affects development and disrupts certain endocrine functions through signaling pathways mediated by nuclear receptors. However, fewer studies have investigated the potential of BDE-99 to interact with nuclear receptors in aquatic vertebrates such as fish. In the present study, interactions between BDE-99 and nuclear receptors were investigated by in silico and in vivo approaches. This PBDE was able to dock into the ligand-binding domain of zebrafish aryl hydrocarbon receptor 2 (AhR2) and pregnane X receptor (PXR). It had a significant effect on the transcriptional profiles of genes associated with AhR or PXR. Based on the developed cytoscape of all zebrafish genes, it was also inferred that AhR and PXR could interact via cross-talk. In addition, both the in silico and in vivo approaches found that BDE-99 affected peroxisome proliferator-activated receptor alpha (PPARalpha), glucocorticoid receptor, and thyroid receptor. Collectively, our results demonstrate for the first time detailed in silico evidence that BDE 99 can bind to and interact with zebrafish AhR and PXR. These findings can be used to elaborate the molecular mechanism of BDE-99 and guide more objective environmental risk assessments. Environ Toxicol Chem 2018;37:780-787. (c) 2017 SETAC. PMID- 29027255 TI - Tracking capybara (Hydrochoerus hydrochaeris) feces contribution method in aquatic environments using sterols. AB - The monitoring of fecal contamination (human and animal) is an incessant challenge. In this approach, microbiological methods play an important role, though with substantial limitations. Organic compounds, such as sterols, are often used to trace fecal contamination. Although the fecal sterols profiles of some animals are already known, capybara, a typical mammal from South America, is a significant contributor to aquatic fecal contamination because of its water dependence; and still there is no one way, scientifically speaking, to trace its fecal contribution. The aim of the present study was to provide a tool to measure the temporal fecal contribution of capybara in aquatic systems. We examined the sterol content of capybara feces and compared with another species (sheep, cow, horse, pig, hen, duck, cat, dog, opossum, and human). From numerical relationships among fecal sterols, 6 ratios were delineated and tested to assess their potential to identify the capybara feces contribution in contaminated environments. Statistical analysis showed that 3 ratios were able to differentiate capybara feces from other sources. Such ratios were applied in samples of a sediment core from an urban area in south Brazil with a large capybara population. The temporal trend showed a significant contribution of capybara feces in the last 100 yr. Environ Toxicol Chem 2018;37:353-361. (c) 2017 SETAC. PMID- 29027257 TI - Review article: consensus statements on therapeutic drug monitoring of anti tumour necrosis factor therapy in inflammatory bowel diseases. AB - BACKGROUND: Therapeutic drug monitoring (TDM) in inflammatory bowel disease (IBD) patients receiving anti-tumour necrosis factor (TNF) agents can help optimise outcomes. Consensus statements based on current evidence will help the development of treatment guidelines. AIM: To develop evidence-based consensus statements for TDM-guided anti-TNF therapy in IBD. METHODS: A committee of 25 Australian and international experts was assembled. The initial draft statements were produced following a systematic literature search. A modified Delphi technique was used with 3 iterations. Statements were modified according to anonymous voting and feedback at each iteration. Statements with 80% agreement without or with minor reservation were accepted. RESULTS: 22/24 statements met criteria for consensus. For anti-TNF agents, TDM should be performed upon treatment failure, following successful induction, when contemplating a drug holiday and periodically in clinical remission only when results would change management. To achieve clinical remission in luminal IBD, infliximab and adalimumab trough concentrations in the range of 3-8 and 5-12 MUg/mL, respectively, were deemed appropriate. The range may differ for different disease phenotypes or treatment endpoints-such as fistulising disease or to achieve mucosal healing. In treatment failure, TDM may identify mechanisms to guide subsequent decision-making. In stable clinical response, TDM-guided dosing may avoid future relapse. Data indicate drug-tolerant anti-drug antibody assays do not offer an advantage over drug-sensitive assays. Further data are required prior to recommending TDM for non-anti-TNF biological agents. CONCLUSION: Consensus statements support the role of TDM in optimising anti-TNF agents to treat IBD, especially in situations of treatment failure. PMID- 29027258 TI - Acquired factor XI deficiency and therapeutic plasma exchange. AB - Congenital factor XI (FXI) deficiency is associated with a variable bleeding phenotype. Recent reports have documented the use of therapeutic plasma exchange to rapidly and isovolumetrically increase FXI levels before invasive procedures in patients with congenital FXI deficiency. We report a case of acquired FXI deficiency in a pregnant woman with lupus. We proved that the inhibitor was an IgG, therefore potentially capable of crossing the placenta. While immune suppression eliminated detectable circulating inhibitor, the woman's FXI remained quite low. A multi-disciplinary team was formed and therapeutic plasma exchange with 100% plasma replacement was performed when the patient went into labor, to acutely raise her FXI level and remove any potential non-neutralizing inhibitor. The mother had a controllable level of bleeding during post-TPE cesarean section; the baby had no bleeding and the baby's FXI levels were not overtly abnormal. Therapeutic plasma exchange in acquired FXI deficiency (or other acquired hemophilias) can both acutely isovolumetrically raise factor levels and remove any circulating inhibitor. PMID- 29027259 TI - Early urinary biomarkers of renal tubular damage by a high-salt intake independent of blood pressure in normotensive rats. AB - Dietary sodium intake has been associated with progression to chronic kidney disease (CKD) as well as hypertension. A high-salt intake causes renal damage independent of hypertension. Because traditional renal biomarkers are insensitive, it is difficult to detect renal injury induced by a high-salt intake, especially in normotensive patients. Here, we investigated whether newly developed renal biomarkers could be detected earlier than traditional biomarkers under a high-salt intake, in normotensive rats. Male Wistar Kyoto rats (WKY) received a regular (0.8% NaCl) or salt-loaded (2, 4, and 8% NaCl) diet from 9 to 17 weeks of age. A urine sample was obtained once a week and urinary vanin-1, neutrophil gelatinase-associated lipocalin (NGAL), and kidney injury molecule-1 (Kim-1) were measured. At 17 weeks of age, 8% salt-loaded WKY showed histopathological renal tubular damage and elevated Rac1 activity in renal tissues. Although there was no significant increase in serum creatinine, urinary albumin, N-acetyl-beta-D-glucosaminidase (NAG), or Kim-1 during the study period among the groups, urinary vanin-1 and NGAL significantly increased in 8% salt loaded WKY from 10 to 17 weeks of age. These results suggest that urinary vanin-1 and NGAL, which might be induced by salt per se, are potentially earlier biomarkers for renal tubular damage in normotensive rats under a high-salt intake. PMID- 29027260 TI - Determinants of bed net policy implementation: A case study of Southern Benin. AB - BACKGROUND: Malaria is a major global health challenge. This study aims to clarify the manner in which contextual factors determine the use and maintenance of bed nets and the extent to which malaria prevention policy is responsive to them in Southern Benin. METHODS: Semi-structured interviews and direct observations were undertaken with 30 pregnant women in the municipality of So-Ava from June to August 2015. Key informants in the Ministry of Health and local community health workers were also interviewed regarding malaria prevention policy formation, and the monitoring and evaluation of bed net interventions, respectively. Data were analyzed through categorical content analysis and grouped into themes. RESULTS: The majority of pregnant women participants (80%) declared non-adherence to instructions for hanging and maintaining insecticide-treated nets (ITNs). The distributed bed nets were washed like clothes, which affected their bio-efficacy, and were in poor condition (ie, torn or had holes). Multiple factors contributed to the poor condition of ITNs: Pregnant women's limited understanding of risk including their inability to connect the key environmental factors to personal risk, gendered responsibility for installing bed nets, and lack of public measures that would enable women to re-treat or access new bed nets as needed. Poverty that determined structural aspects of housing such as the size and quality of homes and access to bed nets exacerbated the challenges. CONCLUSION: Institutionalizing an iterative process of monitoring, review, and responsive adaptation throughout the entire policymaking cycle would better support malaria preventive policy implementation in Benin. PMID- 29027261 TI - Prognostic significance of additional chromosomal abnormalities at the time of diagnosis in patients with chronic myeloid leukemia treated with frontline tyrosine kinase inhibitors. AB - Additional cytogenetic abnormalities (ACA) are considered a high risk feature in chronic myeloid leukemia (CML). However, its prognostic significance at the time of diagnosis in the setting of new tyrosine kinase inhibitors (TKIs) is less well understood. Patients with CML in CP with or without ACA at diagnosis treated with frontline TKIs in prospective clinical trials were analyzed for outcomes. Among 603 patients treated, 29 (5%) had ACA. Patients with ACA included 2 of 72 (2.8%) treated with imatinib 400 mg, 9 of 207 (4.3%) with imatinib 800 mg, 10 of 148 (6.7%) with dasatinib, 6 of 126 (4.7%) with nilotinib, and 2 of 50 (4%) with ponatinib. There was a significantly higher rate of complete cytogenetic response (CCyR) at 6 months in patients without ACA (P = .02). However cumulative CCyR and major molecular response (MMR) rates were not different. Similarly, MR4.0 and MR4.5 rates were similar for both groups; two CML-ACA patients maintained MR 4.5 for at least 2 years. At 5 years, ACA at diagnosis did not significantly impact transformation-free, failure-free, event-free, or overall survival expectations. Acknowledging small sample size estimates, response rates and survival outcomes were comparable in CP with ACA irrespective of whether chromosomal abnormalities were "major route" or other. The presence of ACA at diagnosis does not confer worse prognosis for patients with CML treated with TKI. Thus, the presence of ACA at diagnosis should not alter treatment strategies in these patients. PMID- 29027263 TI - On the use of a six-level scale for physical activity. AB - The 4-level questionnaire to assess leisure-time physical activity (PA) originally described by Saltin and Grimby has been extended to a 6 (or 7)-level questionnaire, especially for the elderly or other persons with a low level of PA, expanded to include household activities. There are currently two main versions, one used in Swedish, Danish, and Norwegian studies, and one with further modifications used in Finnish studies. In this review, predictive validity for mortality and different aspects of physical performance are demonstrated. In a study regarding concurrent validity in one of the Finnish versions, significant correlations with accelerometer-based PA variables are shown. The scale has been used in a number of studies concerning effects of different types of intervention, such as physical training and increased PA, or to describe the PA level in the studied cohort. In presenting and analyzing the data, different combinations of PA levels have been used. As there are major differences between the versions, validity studies cannot easily be transformed between them. Thus, it is suggested that a common consensus be reached with respect to details of the questionnaire. PMID- 29027264 TI - Editorial Comment to Molecular diagnosis of lymph node metastasis in patients with upper urinary tract cancer who underwent lymphadenectomy. PMID- 29027262 TI - On the origins and industrial applications of Saccharomyces cerevisiae * Saccharomyces kudriavzevii hybrids. AB - Companies based on alcoholic fermentation products, such as wine, beer and biofuels, use yeasts to make their products. Each industrial process utilizes different media conditions, which differ in sugar content, the presence of inhibitors and fermentation temperature. Saccharomyces cerevisiae has traditionally been the main yeast responsible for most fermentation processes. However, the market is changing due to consumer demand and external factors such as climate change. Some processes, such as biofuel production or winemaking, require new yeasts to solve specific challenges, especially those associated with sustainability, novel flavours and altered alcohol content. One of the proposed solutions is the application of yeast hybrids. The lager beer market has been dominated by S. cerevisiae * S. eubayanus hybrids. However, several less thoroughly studied hybrids have been isolated from other diverse industrial processes. Here we focus on S. cerevisiae * S. kudriavzevii hybrids, which have been isolated from diverse industrial conditions that include wine, ale beer, cider and dietary supplements. Emerging data suggest an extended and complex story of adaptation of these hybrids to traditional industrial conditions. S. cerevisiae * S. kudriavzevii hybrids are also being explored for new industrial applications, such as biofuels. This review describes the past, present and future of S. cerevisiae * S. kudriavzevii hybrids. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29027265 TI - Shared and task-specific muscle synergies of Nordic walking and conventional walking. AB - Nordic walking is a form of walking that includes a poling action, and therefore an additional subtask, with respect to conventional walking. The aim of this study was to assess whether Nordic walking required a task-specific muscle coordination with respect to conventional walking. We compared the electromyographic (EMG) activity of 15 upper- and lower-limb muscles of 9 Nordic walking instructors, while executing Nordic walking and conventional walking at 1.3 ms-1 on a treadmill. Non-negative matrix factorization method was applied to identify muscle synergies, representing the spatial and temporal organization of muscle coordination. The number of muscle synergies was not different between Nordic walking (5.2 +/- 0.4) and conventional walking (5.0 +/- 0.7, P = .423). Five muscle synergies accounted for 91.2 +/- 1.1% and 92.9 +/- 1.2% of total EMG variance in Nordic walking and conventional walking, respectively. Similarity and cross-reconstruction analyses showed that 4 muscle synergies, mainly involving lower-limb and trunk muscles, are shared between Nordic walking and conventional walking. One synergy acting during upper limb propulsion is specific to Nordic walking, modifying the spatial organization and the magnitude of activation of upper limb muscles compared to conventional walking. The inclusion of the poling action in Nordic walking does not increase the complexity of movement control and does not change the coordination of lower limb muscles. This makes Nordic walking a physical activity suitable also for people with low motor skill. PMID- 29027266 TI - Reliable and sensitive physical testing of elite trapeze sailors. AB - It was investigated whether a newly developed discipline-specific test for elite level trapeze sailors is reliable and sensitive. Furthermore, the physical demands of trapeze sailing were examined. In part 1, 9 national team athletes were accustomed to a simulated sailing test, which subsequently was completed on 4 occasions to determine test reliability and sensitivity to manipulations in body weight. Rope-pulling mean power output (MPO), oxygen consumption (VO2 ), heart rate (HR), and blood lactate values were acquired in all trials. In part 2, 6 sailors completed on-water racing with concurrent measurements of VO2 , HR, and blood lactate. VO2max was determined during an incremental treadmill running test. Typical error, minimal difference, and ICC for average MPO in the test were 1.3%, 1.7%, and 0.99%, respectively. Adding 4 kg of external body weight caused a decrease in average MPO (270 +/- 45W vs 265 +/- 45W, P < .05) and an increase in VO2 (2.44 +/- 0.23 L.min-1 vs 2.55 +/- 0.26 L.min-1 , P < .01). VO2 , HR, and blood lactate during on-water sailing were 54.5% +/- 7.2% VO2max , 75.1% +/- 3.1% HRmax , and 5.8 +/- 2.7 mmol.L-1 , respectively. However, VO2 and HR were substantially higher for periods of the race as peak values were 83.5% +/- 11.4% and 89.9% +/- 1.7% of max, respectively. In conclusion, the present test is reliable and sensitive, thus providing a sailing-specific alternative to traditional physical testing of elite trapeze sailors. Additionally, on-water racing requires moderate aerobic energy production, although oxygen consumption can approach maximal levels for short periods of time. PMID- 29027267 TI - Percutaneous repair of severe mitral valve regurgitation secondary to chordae rupture in octogenarians using MitraClip. AB - OBJECTIVES: The aim of this study was to assess feasibility and clinical effectiveness of the MitraClip device in octogenarians suffering from severe mitral valve regurgitation due to chordae rupture. BACKGROUND: The MitraClip procedure is a suitable technique in high-risk surgical patients to achieve safe and effective percutaneous repair of mitral valve regurgitation. Octogenarians show cumulative risk and social aspects hindering mitral valve surgery. No data exists regarding the use of the MitraClip device in high-risk octogenarians suffering from mitral valve chordae rupture. METHODS: Between October 2009 and March 2017 98 high-risk octogenarians (society of thoracic surgeons score [STS]: 9.7% +/- 0.8) with mitral valve prolapse and consecutively chordae rupture were treated with the MitraClip after interdisciplinary discussion. RESULTS: Successful mitral valve repair was achieved in 91% of the octogenarians. Repair of the mitral valve caused immediate and significant reduction of dyspnoea (NYHA class: 3.5 +/- 0.4 vs 2.0 +/- 0.3; P < 0.001), cardiac reverse remodeling (LVESD: 39 +/- 0.8 vs 35 +/- 0.8; P < 0.01) and amelioration of cardiac biomarkers (NTproBNP (4884 +/- 52 ng/L vs 2473 +/- 210 ng/L; P < 0.05,). Effects were stable over the 12 months observation period. None of our patients died intraprocedurally. CONCLUSIONS: Percutaneous repair of chordae rupture is feasible and safe in high-risk octogenarians. The MitraClip should be considered to repair severe mitral valve regurgitation due to mitral valve chordae rupture in high-risk octogenarians after interdisciplinary discussion even facing a challenging anatomy. PMID- 29027268 TI - Emergency thoracic aortic stent grafting for aortoesophageal fistula in advanced esophageal cancer. PMID- 29027269 TI - Partial nephrectomy for small children: Robot-assisted versus open surgery. AB - OBJECTIVES: To compare the outcomes of robot-assisted heminephrectomy for duplex kidney in children with those of open heminephrectomy. METHODS: The present retrospective multicentric analysis reviewed the records of robot-assisted versus open heminephrectomy carried out for duplex kidney in children from 2007 to 2014. Demographic data, weight, surgical time, hospital stay, complications and outcome were recorded. Follow up was based on a clinical review, renal sonography and dimercaptosuccinic acid renal scintigraphy. RESULTS: A total of 15 patients underwent robot-assisted heminephrectomy, and 13 patients underwent retroperitoneal heminephrectomy by open approach. All patients weighed <15 kg. The mean age at the time of surgery was 20.2 months (range 7-39 months) in the robotic group, and 18.4 months (range 6-41 months) in the open group. The mean hospital stay was statistically longer for the open surgery group (6.3 days, range 5-8 days vs 3.4 days, range 1-7 days; P < 0.001). Regarding postoperative pain control, total morphine equivalent intake was statistically greater for the open group (0.52 mg/kg/day vs 1.08 mg/kg/day; P < 0.001). No patient lost the remaining healthy moiety. There was no significant difference in terms of operating time, complication rate or renal outcomes. CONCLUSIONS: Robot-assisted heminephrectomy in small children seems to offer comparable renal outcomes with those of its standard open surgery counterpart. Specific technical adjustments are necessary, which typically increase the set-up time. PMID- 29027271 TI - Surgical treatment of coronary artery aneurysms. AB - INTRODUCTION: Coronary artery aneurysms (CAA) are rare. We present our experience with the surgical treatment of patients with CAAs. METHODS: Between March 2000 and October 2016, 15 patients with CAA underwent surgery. RESULTS: Mean age of patients was 60 +/- 16 years and 47% (n = 7) were male. Kawasaki syndrome was present in two (13%) patients and 7% (n = 1) patients had Marfan syndrome. Isolated CAAs were found in 73% (n = 11) and involvement of multiple vessels was present in 27% (n = 4) of patients. Coronary arteries (CA) affected by aneurysms were: 19% (n = 4) left main stem, 33% (n = 7) left anterior descending, 14% (n = 3) left circumflex, and 33% (n = 7) right coronary artery. The majority of patients (93%, n = 14) were operated on pump with a mean cross-clamp time of 51 +/- 23 min. 53% (n = 8) of patients received total arterial CA bypass grafting, while the remaining patients (47%, n = 7) received venous +/- internal thoracic artery grafts. Resection/ligation of CAA was performed in 27% (n = 4) of patients. In-hospital mortality was 0% (n = 0). Follow-up was complete for 100% of patients and comprised a total of 80 patient-years. During follow-up, only one patient (7%) required re-intervention. CONCLUSION: Surgical treatment of CAA has good short- and long-term results. PMID- 29027272 TI - MoS2 @HKUST-1 Flower-Like Nanohybrids for Efficient Hydrogen Evolution Reactions. AB - A novel MoS2 -based flower-like nanohybrid for hydrogen evolution was fabricated through coating the Cu-containing metal-organic framework (HKUST-1) onto MoS2 nanosheets. It is the first time that MoS2 @HKUST-1 nanohybrids have been reported for the enhanced electrochemical performance of HER. The morphologies and components of the MoS2 @HKUST-1 flower-like nanohybrids were characterized by scanning electron microscopy, X-ray diffraction analysis and Fourier transform infrared spectroscopy. Compared with pure MoS2 , the MoS2 @HKUST-1 hybrids exhibit enhanced performance on hydrogen evolution reaction with an onset potential of -99 mV, a smaller Tafel slope of 69 mV dec-1 , and a Faradaic efficiency of nearly 100 %. The MoS2 @HKUST-1 flower-like nanohybrids exhibit excellent stability in acidic media. This design opens new possibilities to effectively synthesize non-noble metal catalysts with high performance for the hydrogen evolution reaction (HER). PMID- 29027270 TI - The yerba mate intake has a neutral effect on bone: A case-control study in postmenopausal women. AB - Nutritional factors have been associated with osteoporosis and fractures. The intake of coffee may increase the risk of fracture whereas the intake of black and green tea is associated with its reduction. Recently, consumption of yerba mate was associated with increased bone mineral density in postmenopausal women. Nonetheless, its influence on fracture is not known. The aim of this study was to evaluate the effect of yerba mate tea intake on fractures, bone markers, calcium homeostasis, and oxidative stress in postmenopausal women. A case-control study was carried out in South Brazil, 46 women with fractures and 49 controls completed the study. There was no significant difference between the frequency of fractures in women who drank mate tea and women who did not (48.3% vs. 48.5%, p = .99). Moreover, there was no significant difference concerning the serum levels of total calcium, phosphorus, PTH, vitamin D, P1NP, and CTX in the subjects with the history of yerba mate use when compared to controls. Higher serum levels of NOx were found in women who drank the yerba mate infusion. In conclusion, the yerba mate intake is not associated with fracture, and it appears to have a neutral effect on the bone metabolism. PMID- 29027273 TI - Molecular diagnosis of lymph node metastasis in patients with upper urinary tract cancer who underwent lymphadenectomy. AB - OBJECTIVES: To determine the significance of molecular diagnosis of lymph node metastasis using quantitative reverse transcription polymerase chain reaction in patients with upper urinary tract urothelial cancer. METHODS: A total of 51 patients with upper urinary tract urothelial cancer who underwent extended lymphadenectomy were included in the present study. Retrieved lymph nodes from each patient were divided into two parts. One part was assessed by quantitative reverse transcription polymerase chain reaction assay for molecular staging, whereas the other one was assessed by routine histopathological examination. Four kinds of molecules (FXYD3, KRT19, KRT20 and UPK2) were selected as markers to detect urothelial cancer cells. RESULTS: The average number of retrieved lymph nodes was 18.3. As UPK2 showed the best discrimination ability among four markers, the patients were classified in three categories according to UPK2 expression: N(+)PCR(+) for patients who had lymph node metastasis by routine pathological diagnosis as well as quantitative reverse transcription polymerase chain reaction (n = 4); N(-)PCR(+) for patients who had lymph node metastasis by polymerase chain reaction but not by routine pathological diagnosis (n = 7); and N(-)PCR(-) for patients who showed no lymph node metastasis not only by routine pathological diagnosis but also by polymerase chain reaction (n = 40). The prognosis of the N(-)PCR(+) group was better than that of the N(+)PCR(+) group, and similar to that of the N(-)PCR(-) group. CONCLUSIONS: Quantitative reverse transcription polymerase chain reaction could detect micrometastasis in patients with upper urinary tract urothelial cancer. However, the prognosis of patients with micrometastasis is better than patients with pathologically metastasized lymph nodes, and similar to patients without micrometastasis. PMID- 29027274 TI - Comparative Oral Absorption of Curcumin in a Natural Turmeric Matrix with Two Other Curcumin Formulations: An Open-label Parallel-arm Study. AB - Curcuminoids are the major bioactive molecules in turmeric, and poor bioavailability deters them from being the major components of many health and wellness applications. This study was conducted to assess the bioavailability of a completely natural turmeric matrix formulation (CNTMF) and compare its bioavailability with two other commercially available formulations, namely, curcumin with volatile oil (volatile oil formulation) and curcumin with phospholipids and cellulose (phospholipid formulation) in healthy human adult male subjects (15 each group) under fasting conditions. Each formulation was administrated orally as a single 500-mg dose in capsule form, and blood samples were analyzed by liquid chromatography mass spectrometry at various time intervals up to 24 h. The ingestion of the CNTMF was very well absorbed and resulted in a mean curcuminoids plasma Cmax of 170.14 ng/mL (Tmax = 4 h) compared with 47.54 ng/mL and 69.63 ng/mL for the volatile oil (Tmax = 3 h) and phospholipid (Tmax = 2.25 h) formulations, respectively. The extent of absorption of total curcuminoids in the blood for the CNTMF was 6* greater than volatile oil formulation and 5* greater than phospholipids formulation. The results of this study indicate that curcumin in a natural turmeric matrix exhibited greater bioavailability than the two comparator products. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29027275 TI - Multifaceted Supramolecular Interactions from C-Methylresorcin[4]arene Lead to an Enhancement in In Vitro Antibacterial Activity of Gatifloxacin. AB - Mimicking the antibacterial activity of polyphenols in synthetic systems is an attractive approach for the development of new active pharmaceutical ingredients. Resorcinarenes represent a class of polyphenols, which have been exploited for decades for their attractive chemical scaffold suitable for forming host-guest complexes with hydrophobic guest molecules. However, the polyphenolic character of resorcinarenes, which could be a potential asset to the pharmaceutical industry, have been least exploited. The present work represents an unprecedented interplay of antimicrobial activity of resorcinarene together with its ability to interact chemically with an antibacterial drug gatifloxacin, improving the overall antibacterial activity. The chemistry and the clinical activities involved in this study were investigated simultaneously by spectroscopic techniques, as well as by in vitro measurement of antibacterial activity toward two human bacterial pathogens, a Gram-positive pathogen Staphylococcus aureus and a Gram-negative lung pathogen Legionella pneumophila. The initial positive result obtained from this study could revolutionize the use of synthetically modifiable resorcinarenes and their analogues in fine tuning the clinical behavior of drugs. PMID- 29027276 TI - Natural medicines for acute renal failure: A review. AB - Acute renal failure (ARF) is a life-threating disease with high mortality percentage. Two important mechanisms of ARF are inflammation and oxidative stress. Plants are rich source of antioxidant compounds and have a strong anti inflammatory activity, so they may be useful for the treatment of ARF. Some herbal medicines are effective against different models of experimentally induced ARF such as cisplatin, gentamicin, glycerol, and ischemia-reperfusion injury. Some of these plants such as ginseng, black seed, ginger, garlic, grape, pomegranate, saffron, and green tea are so famous and are effective against various models of ARF. However, we found several articles examining the effectiveness of different plants for treating ARF. In the current article, we discussed plants and natural products that are effective in the treatment of ARF. PMID- 29027277 TI - Relativistic DFT Calculations of Hyperfine Coupling Constants in 5d Hexafluorido Complexes: [ReF6 ]2- and [IrF6 ]2. AB - The performance of relativistic density functional theory (DFT) methods has been investigated for the calculation of the recently measured hyperfine coupling constants of hexafluorido complexes [ReF6 ]2- and [IrF6 ]2- . Three relativistic methods were employed at the DFT level of theory: the 2-component zeroth-order regular approximation (ZORA) method, in which the spin-orbit coupling was treated either variationally (EV ZORA) or as a perturbation (LR ZORA), and the 4 component Dirac-Kohn-Sham (DKS) method. The dependence of the results on the basis set and the choice of exchange-correlation functional was studied. Furthermore, the effect of varying the amount of Hartree-Fock exchange in the hybrid functionals was investigated. The LR ZORA and DKS methods combined with DFT led to very similar deviations (about 20 %) from the experimental values for the coupling constant of complex [ReF6 ]2- by using hybrid functionals. However, none of the methods were able to reproduce the large anisotropy of the hyperfine coupling tensor of complex [ReF6 ]2- . For [IrF6 ]2- , the EV ZORA and DKS methods reproduced the experimental tensor components with deviations of ~10 and ~5 % for the hybrid functionals, whereas the LR ZORA method predicted the coupling constant to be around one order of magnitude too large owing to the combination of large spin-orbit coupling and very low excitation energies. PMID- 29027278 TI - Current Status of Herbal Drug Standards in the Indian Pharmacopoeia. AB - The benefits of herbal drugs were well understood way back. They have been used for the promotion of health and medical purposes - in disease conditions. It is a conventional belief that herbal drugs have no side effects, are cheaper and locally available. Among Indian systems of medicines, herbs/herbal formulations are used to a larger extent. The quality control of the marketed herbs/herbal formulations is important for acquiring optimum therapeutic benefit as well as for expanding global outreach. Therefore, herbal drug standards are important. Reference standards, the Indian Pharmacopoeia Reference Substances especially the botanical reference substances and the phytochemical reference substances are required for comparison of quality of herbal drugs. The Indian Pharmacopoeia Commission has initiated the process of providing Indian Pharmacopoeia Reference Substances to the stakeholders. Therefore, this article provides an overview of the history and the status of herbal drug standards in the current and forthcoming issues of Indian Pharmacopoeia. In Indian Pharmacopeia, efforts have been made for the harmonization of standards with international counterparts wherever possible. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29027279 TI - Long non-coding RNA PVT1: Emerging biomarker in digestive system cancer. AB - The digestive system cancers are leading cause of cancer-related death worldwide, and have high risks of morbidity and mortality. More and more long non-coding RNAs (lncRNAs) have been studied to be abnormally expressed in cancers and play a key role in the process of digestive system tumour progression. Plasmacytoma variant translocation 1 (PVT1) seems fairly novel. Since 1984, PVT1 was identified to be an activator of MYC in mice. Its role in human tumour initiation and progression has long been a subject of interest. The expression of PVT1 is elevated in digestive system cancers and correlates with poor prognosis. In this review, we illustrate the various functions of PVT1 during the different stages in the complex process of digestive system tumours (including oesophageal cancer, gastric cancer, colorectal cancer, hepatocellular carcinoma and pancreatic cancer). The growing evidence shows the involvement of PVT1 in both proliferation and differentiation process in addition to its involvement in epithelial to mesenchymal transition (EMT). These findings lead us to conclude that PVT1 promotes proliferation, survival, invasion, metastasis and drug resistance in digestive system cancer cells. We will also discuss PVT1's potential in diagnosis and treatment target of digestive system cancer. There was a great probability PVT1 could be a novel biomarker in screening tumours, prognosis biomarkers and future targeted therapy to improve the survival rate in cancer patients. PMID- 29027280 TI - Versatile Tailoring of NH2 -Containing Metal-Organic Frameworks with Paddle-Wheel Units. AB - An amine-containing non-interpenetrating pillar-layer framework, [Zn2 (dbtcb)(L1)]?x solvent (1), has been synthesized from Zn(NO3 )2 and the ligands 1,4-dibromo-2,3,5,6-tetrakis(4-carboxyphenyl)benzene (H4 DBTCB) and 2,5-bis(4 pyridyl)aniline (L1). The [Zn2 (COO)4 ] secondary building units (SBUs) are bridged by DBTCB to form two-dimensional layers that are linked by L1 ligands acting as pillars to form a three-dimensional network. This NH2 -containing framework can undergo versatile tailoring through post-synthetic covalent modification, solvent-assisted linker exchange (SALE), and single-crystal-to single-crystal (SC-SC) transmetalation reactions. Acetamide-functionalized [Zn2 (L2)(dbtcb)]?xsolvent (2) could be obtained by direct synthesis from Zn(NO3 )2 , N-acetyl-2,5-bis(4-pyridyl)aniline (L2) and H4 DBTCB. Importantly, compound 1 with pure NH2 ligands as pillars could be obtained by SALE of 2 with L1 in DMSO solution. The transmetalation reactions of 1 with CuII , NiII , and CoII were studied; inductively coupled plasma-atomic emission (ICP) analysis revealed that 1 underwent almost complete SC-SC transmetalation with CuII within 30 h, whereas with NiII and CoII only 70 and 80 % substitutions were achieved. Photoluminescence studies revealed that 1 and 2 display yellow-green and UV emission, respectively, under a UV lamp. Furthermore, the photoluminescent properties could be tuned by introducing mixed pillar amino ligands L1 and L2 into the MOF to produce multivariate (MTV) MOF 3 displaying overall orange emission. PMID- 29027281 TI - A New Member of the Inverted Cucurbit[n]uril Family. AB - A new inverted cucurbituril, namely inverted hexamethylcucurbit[3,3]uril (iMe6 Q[3,3]), has been isolated and characterized. It incorporates a single inverted un-substituted glycoluril unit oriented towards the interior of the cavity, shows good solubility in water and organic solvents (DMSO), and exhibits different selectivity for guests to those of iQ[6] and other known Q[6]s. PMID- 29027282 TI - Oestrogen retains human periodontal ligament stem cells stemness in long-term culture. AB - OBJECTIVES: During long-term culture, loss of stemness is observed which greatly restricts the application of human periodontal ligament stem cells (hPDLSCs) in tissue regeneration. Oestrogen (E2) was found to significantly enhance the proliferation and osteogenic differentiation capacity in mesenchymal stem cells. Therefore, in this study, we investigated effects of E2 on hPDLSCs stemness in long-term culture. MATERIALS AND METHODS: Effects of E2 on hPDLSCs stemness were systematically evaluated. To characterize underlying the mechanisms, its effects on PI3K/AKT signalling pathway were determined. RESULTS: Our results showed that E2 was able to enhance the proliferation, modify cell cycle, up-regulate stemness related genes expression, promote osteogenic differentiation and elevate the positive rate of CD146 and STRO-1 over 10 passages in hPDLSCs. Importantly, PI3K/AKT signing pathway might play a role in these effects. CONCLUSIONS: These findings suggest that E2 retains hPDLSCs stemness in long-term culture, which might enhance its application in tissue engineering. PMID- 29027283 TI - Does managing the consumption of people with severe alcohol dependence reduce harm? A comparison of participants in six Canadian managed alcohol programs with locally recruited controls. AB - INTRODUCTION AND AIMS: Managed alcohol programs (MAP) are intended for people with severe alcohol-related problems and unstable housing. We investigated whether MAP participation was associated with changes in drinking patterns and related harms. DESIGN AND METHODS: One hundred and seventy-five MAP participants from five Canadian cities (Hamilton, Ottawa, Toronto, Thunder Bay and Vancouver) and 189 same-city controls were assessed for alcohol consumption, health, safety and harm outcomes. Length of stay in a MAP was investigated as a predictor of drinking patterns, non-beverage alcohol consumption and related harms. Statistical controls were included for housing stability, age, gender, ethnic background and city of residence. Negative binomial regression and logistic regression models were used. RESULTS: Recently admitted MAP participants (<=2 months) and controls were both high consumers of alcohol, predominantly male, of similar ethnic background, similarly represented across the five cities and equally alcohol dependent (mean Severity of Alcohol Dependence Questionnaire = 29.7 and 31.4). After controlling for ethnicity, age, sex, city and housing stability, long-term MAP residents (>2 months) drank significantly more days (+5.5) but 7.1 standard drinks fewer per drinking day than did controls over the last 30 days. Long-term MAP residents reported significantly fewer alcohol related harms in the domains of health, safety, social, legal and withdrawal. DISCUSSION AND CONCLUSIONS: Participation in a MAP was associated with more frequent drinking at lower quantities per day. Participation was associated with reduced alcohol-related harms over the past 30 days. Future analyses will examine outcomes longitudinally through follow-up interviews, police and health care records. PMID- 29027284 TI - Polydopamine Particles Reinforced Poly(vinyl alcohol) Hydrogel with NIR Light Triggered Shape Memory and Self-Healing Capability. AB - This study focuses on developing a facile approach to prepare biocompatible poly(vinyl alcohol) (PVA) composite hydrogels containing polydopamine particles (PDAPs) with ultrafast near-infrared (NIR) light-triggered shape memory and self healing capability. The PVA-PDAPs composite hydrogels with excellent mechanical properties can be achieved after freezing/thawing treatment, and the formation of physically cross-linked networks from the hydrogen bonding (H-bonding) between PVA and PDAPs. Due to the excellent photothermal effect of polydopamine, the composited hydrogel can achieve rapid shape recovery and efficient self-healing properties under NIR light exposure in a short time. With the excellent shape memory performance, good biocompatibility, and self-healing property, this hydrogel should have great potential in biomedical fields such as tissue engineering, arthrodial cartilage, and artificial skin. PMID- 29027285 TI - Subtle Deregulation of the Wnt-Signaling Pathway Through Loss of Apc2 Reduces the Fitness of Intestinal Stem Cells. AB - The importance of the Wnt-signaling pathway on the regulation and maintenance of the intestinal stem cell (ISC) population is well recognized. However, our current knowledge base is founded on models using systems of gross deregulation of the Wnt-signaling pathway. Given the importance of this signaling pathway on intestinal homeostasis, there is a need to explore the role of more subtle alterations in Wnt-signaling levels within this tissue. Herein, we have used a model of Apc2 loss to meet this aim. Apc2 is a homolog of Apc which can also form a destruction complex capable of binding beta-catenin, albeit less efficiently than Apc. We show that systemic loss of Apc2 results in an increase in the number of cells displaying nuclear beta-catenin at the base of the intestinal crypt. This subsequently impacts the expression levels of several ISC markers and the fitness of ISCs as assessed by organoid formation efficiency. This work provides the first evidence that the function and fitness of ISCs can be altered by even minor misregulation of the Wnt-signaling pathway. Our data highlights the importance of correct maintenance of this crucial signaling pathway in the maintenance and function of the ISC population. Stem Cells 2018;36:114-122. PMID- 29027287 TI - Role of the Diphosphine Chelate in Emissive, Charge-Neutral Iridium(III) Complexes. AB - A class of neutral tris-bidentate IrIII metal complexes incorporating a diphosphine as a chelate is prepared and characterized here for the first time. Treatment of [Ir(dppBz)(tht)Cl3 ] (1, dppBz=1,2-bis(diphenylphosphino)benzene, tht=tetrahydrothiophene) with fppzH (3-trifluoromethyl-5-(2'-pyridyl)-1H pyrazole) afforded the dichloride complexes, trans-(Cl,Cl)[Ir(dppBz)(fppz)Cl2 ] (2) and cis-(Cl,Cl)[Ir(dppBz)(fppz)Cl2 ] (3). The reaction of 3 with the dianionic chelate precursor, 5,5'-di(trifluoromethyl)-3,3'-bipyrazole (bipzH2 ) or 5,5'-(1-methylethylidene)-bis(3-trifluoromethyl-1H-pyrazole) (mepzH2 ), in DMF gave the tris-bidentate complex [Ir(dppBz)(fppz)(bipz)] (4) or [Ir(dppBz)(fppz)(mepz)] (5), respectively. In contrast, a hydride complex [Ir(dppBz)(fppz)(bipzH)H] (6) was isolated instead of 4 in protic solvent, namely: diethylene glycol monomethyl ether (DGME). All complexes 2-6 are luminescent in powder form and thin films where the dichlorides (2, 3) emit with maxima at 590-627 nm (orange) and quantum yields (QYs) up to 90 % whereas the tris-bidentate (4, 5) and hydride (6) complexes emit at 455-458 nm (blue) with QYs up to 70 %. Hybrid (time-dependent) DFT calculations showed considerable metal-to-ligand charge transfer contribution to the orange-emitting 2 and 3 but substantial ligand-centered 3 pi-pi* transition character in the blue-emitting 4 6. The dppBz does not participate in the radiative transitions in 4-6, but it provides the rigidity and steric bulk needed to promote the luminescence by suppressing the self-quenching in the solid state. Fabrication of an organic light-emitting diode (OLED) with dopant 5 gave a deep-blue CIE chromaticity of (0.16, 0.15). Superior blue emitters, which are vital in OLED applications, may be found in other neutral IrIII complexes containing phosphine chelates. PMID- 29027286 TI - Investigating the bifunctionality of cyclizing and "classical" 5-aminolevulinate synthases. AB - The precursor to all tetrapyrroles is 5-aminolevulinic acid, which is made either via the condensation of glycine and succinyl-CoA catalyzed by an ALA synthase (the C4 or Shemin pathway) or by a pathway that uses glutamyl-tRNA as a precursor and involves other enzymes (the C5 pathway). Certain ALA synthases also catalyze the cyclization of ALA-CoA to form 2-amino-3-hydroxycyclopent-2-en-1-one. Organisms with synthases that possess this second activity nevertheless rely upon the C5 pathway to supply ALA for tetrapyrrole biosynthesis. The C5 N units are components of a variety of secondary metabolites. Here, we show that an ALA synthase used exclusively for tetrapyrrole biosynthesis is also capable of catalyzing the cyclization reaction, albeit at much lower efficiency than the dedicated cyclases. Two absolutely conserved serines present in all known ALA-CoA cyclases are threonines in all known ALA synthases, suggesting they could be important in distinguishing the functions of these enzymes. We found that purified mutant proteins having single and double substitutions of the conserved residues are not improved in their respective alternate activities; rather, they are worse. Protein structural modeling and amino acid sequence alignments were explored within the context of what is known about the reaction mechanisms of these two different types of enzymes to consider what other features are important for the two activities. PMID- 29027288 TI - CXXC5 expression in prostate cancer: implications for cancer progression. AB - Identification of genes specifically deregulated in prostate adenocarcinoma may lead to discovery of new oncogenes/tumour suppressors with clinical relevance for diagnosis, prognosis and/or therapy. CXXC5 is a gene encoding a retinoid inducible nuclear factor, whose overexpression in breast tumours, metastatic malignant melanomas and papillary thyroid carcinoma has been recently reported. We previously found differential expression of CXXC5 transcripts in metastatic prostate cancer cell lines of both rat and human origin. However, knowledge on the expression of this gene in benign or malignant human prostate tissue is lacking. The aim of this study was to determine the mRNA and protein expression pattern of CXXC5 in human benign prostate tissue, proliferative inflammatory atrophy, high-grade prostatic intra-epithelial neoplasia and prostate cancer, using qPCR, chromogenic in situ hybridization and immunohistochemistry. Our results showed that protein levels determined by immunohistochemistry were in agreement with transcript levels observed by chromogenic in situ hybridization. CXXC5 mRNA and protein expressions were significantly higher in prostate cancer, high-grade prostatic intra-epithelial neoplasia, and proliferative inflammatory atrophy, compared to benign prostate tissue. Significantly, within the same tissue specimens, CXXC5 staining was stronger in malignant acini than in matched adjacent, benign acini; immunostaining for this protein was mainly localized to the nucleus of benign epithelial cells and both the nucleus and cytoplasm of malignant epithelial cells. Our findings suggest that CXXC5 may play a role in the process of prostate carcinogenesis. Additional studies are required to determine the biological and clinical significance of CXXC5 in prostate cancer development and/or progression. PMID- 29027290 TI - Pertuzumab and trastuzumab infusion related cytokine release syndrome in a chemotherapy naive patient with metastatic breast cancer. AB - Pertuzumab is a monoclonal antibody that targets and down regulates HER-2/neu expression in ductal breast tumors. Other HER-2/neu monoclonal antibodies, particularly trastuzumab, have been implicated to induce infusion related reactions such as cytokine release syndrome (CRS). Here, we report a case of pertuzumab associated CRS prior to infusion of trastuzumab which warranted hospitalization for symptom management. PMID- 29027289 TI - Polychlorinated dibenzo-p-dioxins and dibenzofurans levels in piglet liver with various diseases. AB - This study deals with the levels of toxic polychlorinated dibenzo-p-dioxin and furan congeners (PCDD/Fs) in the livers of piglets affected by infectious diseases using isotope dilution high-resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS). Seventeen toxic congeners in the liver samples infected with bacterial and viral diseases were compared. For porcine reproductive and respiratory syndrome virus (PRRSV) samples, the North American- and European-type PRRS diseases were observed. This study shows that there are significantly different levels of PCDD/Fs, present, which vary according to the types of diseases as evidenced by our analysis of the piglet liver samples. PMID- 29027291 TI - Being a modern paediatric surgeon. PMID- 29027292 TI - Strontium isotope measurement of basaltic glasses by laser ablation multiple collector inductively coupled plasma mass spectrometry based on a linear relationship between analytical bias and Rb/Sr ratios. AB - RATIONALE: In situ strontium (Sr) isotope analysis of geological samples by laser ablation multiple collector inductively coupled plasma mass spectrometry (LA-MC ICP-MS) provides useful information about magma mixing, crustal contamination and crystal residence time. Without chemical separation, during Sr isotope analysis with laser ablation, many kinds of interference ions (such as Rb+ and Kr+ ) are on the Sr isotope spectrum. Most previous in situ Sr isotope studies only focused on Sr-enriched minerals (e.g. plagioclase, calcite). Here we established a simple method for in situ Sr isotope analysis of basaltic glass with Rb/Sr ratio less than 0.14 by LA-MC-ICP-MS. METHODS: Seven Faraday cups, on a Neptune Plus MC-ICP MS instrument, were used to receive the signals on m/z 82, 83, 84, 85, 86, 87 and 88 simultaneously for the Sr isotope analysis of basaltic glass. The isobaric interference of 87 Rb was corrected by the peak stripping method. The instrumental mass fractionation of 87 Sr/86 Sr was corrected to 86 Sr/88 Sr = 0.1194 with an exponential law. Finally, the residual analytical biases of 87 Sr/86 Sr were corrected with a relationship between the deviation of 87 Sr/86 Sr from the reference values and the measured 87 Rb/86 Sr. The validity of the protocol present here was demonstrated by measuring the Sr isotopes of four basaltic glasses, a plagioclase crystal and a piece of modern coral. RESULTS: The measured 87 Sr/86 Sr ratios of all these samples agree within 100 ppm with the reference values. In addition, the Sr isotopes of olivine-hosted melt inclusions from the Emeishan large igneous province (LIP) were measured to show the application of our method to real geological samples. CONCLUSIONS: A simple but accurate approach for in situ Sr isotope measurement by LA-MC-ICP-MS has been established, which should greatly facilitate the wider application of in situ Sr isotope geochemistry, especially to volcanic rock studies. PMID- 29027293 TI - Determination of chemical identity and occupancy from experimental density maps. AB - Three basic electronic properties of molecules, electron density (ED), charge density (CD), and electrostatic potentials (ESP), are dependent on both atomic mobility and occupancy of components in the molecules. Small protein subunits may bind large macromolecular complexes with a reduced occupancy or an increased atomic mobility or both due to affinity-based functional regulation, and so may substrates, products, cofactors, ions or solvent molecule to the active sites of enzymes. A quantitative theory is presented in this study that describes the dependence of atomic functions on atomic B-factor in Fourier transforms of the corresponding maps. An application of this theory is described to an experimental ED map at 1.73-A resolution, and to an experimental CD map at 2.2-A resolution. All the three density functions are linearly proportional to occupancy when the structure factor F(000) term of Fourier transforms of experimental density maps is included. Upon application of this theory to both experimental CD and ESP maps recently reported for photosystem II-light harvesting complex II supercomplex at 3.2-A resolution, the occupancy of two extrinsic protein subunits PsbQ and PsbP is determined to be 20.4 +/- 0.2%, and the negative mean ESP value of vitreous ice displaced by the supercomplex on electron scattering path is estimated to be 3% of the mean ESP value of protein alpha-helices. PMID- 29027294 TI - Classification of self-injurious behaviour across the continuum of relative environmental-biological influence. AB - Self-injurious behaviour (SIB) is generally considered to be the product of interactions between dysfunction stemming from the primary developmental disability and experiences that occasion and reinforce SIB. As a result of these complex interactions, SIB presents as a heterogeneous problem. Recent research delineating subtypes of SIB that are nonsocially mediated, including one that is amenable to change and one that is highly invariant, enables classification of SIB across a broader continuum of relative environmental-biological influence. Directly examining how the functional classes of SIB differ has the potential to structure research, will improve our understanding this problem, and lead to more targeted behavioural and pharmacological interventions. Recognising that SIB is not a single entity but is composed of distinct functional classes would better align research with conceptual models that view SIB as the product of interactions between environmental and biological variables. PMID- 29027295 TI - Progression of late postoperative atrial fibrillation in patients with tetralogy of Fallot. AB - INTRODUCTION: ToF patients are at risk for ventricular deterioration at a relatively young age, which can be aggravated by AF development. Therefore, knowledge on AF development and its timespan of progression is essential to guide treatment strategies for AF. OBJECTIVE: We examined late postoperative AF onset and progression in ToF patients during long-term follow-up after ToF correction. In addition, coexistence of AF with regular supraventricular tachyarrhythmias (SVT) and ventricular tachyarrhythmias (VTA) was analyzed. METHODS AND RESULTS: ToF patients (N = 29) with AF after ToF correction referred to the electrophysiology department between 2000 and 2015 were included. All available rhythm registrations were reviewed for AF, regular SVT, and VTA. AF progression was defined as transition from paroxysmal AF to (longstanding) persistent/permanent AF or from (longstanding) persistent AF to permanent AF. At the age of 44 +/- 12 years, ToF patients presented with paroxysmal (N = 14, 48%), persistent (N = 13, 45%) or permanent AF (N = 2, 7%). Age of AF development was similar among patients who either underwent initial shunt creation (N = 15, 45 +/- 11 [25-57] years) or primary total ToF correction (N = 14, 43 +/- 13 [26-66] years) (P = 0.785). AF coexisted with regular SVT (N = 18, 62%) and VTA (N = 13, 45%). Progression of AF occurred in 11 patients (38%) within 5 +/- 5 years after AF onset despite antiarrhythmic drug class II (AAD, P = 0.052) or III (P = 0.587) usage. CONCLUSIONS: AF in our ToF population developed at a young age and showed rapid progression. Rhythm control by pharmacological therapy was ineffective in preventing AF progression. PMID- 29027297 TI - Factors associated with ambulatory care sensitive emergency department visits for South Carolina Medicaid members with intellectual disability. AB - INTRODUCTION: Ambulatory care sensitive conditions (ACSCs) can be seen as failure of access or management in primary care settings. Identifying factors associated with ACSCs for individuals with an Intellectual Disability (ID) provide insight into potential interventions. METHOD: To assess the association between emergency department (ED) ACSC visits and a number of demographic and health characteristics of South Carolina Medicaid members with ID. A retrospective cohort of adults with ID was followed from 2001 to 2011. Using ICD-9-CM codes, four ID subgroups, totalling 14 650 members, were studied. RESULTS: There were 106 919 ED visits, with 21 214 visits (19.8%) classified as ACSC. Of those, 82.9% were treated and released from EDs with costs averaging $578 per visit. People with mild and unspecified ID averaged greater than one ED visit per member year. Those with Down syndrome and other genetic cause ID had the lowest rates of ED visits but the highest percentage of ACSC ED visits that resulted in inpatient hospitalisation (26.6% vs. an average of 16.8% for other subgroups). When compared with other residential types, those residing at home with no health support services had the highest ED visit rate and were most likely to be discharged back to the community following an ED visit (85.2%). Adults residing in a nursing home had lower rates of ED visits but were most likely to be admitted to the hospital (38.9%) following an ED visit. Epilepsy and convulsions were the leading cause (29.6%) of ACSC ED visits across all subgroups and residential settings. CONCLUSION: Prevention of ACSC ED visits may be possible by targeting adults with ID who live at home without health support services. PMID- 29027296 TI - Monomer Protonation-Dependent Surface Polymerization to Achieve One-Step Grafting Cross-Linked Poly(4-Vinylpyridine) Onto Core-Shell Fe3 O4 @SiO2 Nanoparticles. AB - Functional polymer-grafting silica nanoparticles hold great promise in diverse applications such as molecule recognition, drug delivery, and heterogeneous catalysis due to high density and uniform distribution of functional groups and their tunable spatial distance. However, conventional grafting methods from monomers mainly consist of one or more extra surface modification steps and a subsequent surface polymerization step. A monomer protonation-dependent surface polymerization strategy is proposed to achieve one-step uniform surface grafting of cross-linked poly(4-vinylpyridine) (P4VP) onto core-shell Fe3 O4 @SiO2 nanostructures. At an approximate pH, partially protonated 4VP sites in aqueous solution can be strongly adsorbed onto deprotonated silanol groups (?Si?O- ) onto Fe3 O4 @SiO2 nanospheres to ensure prior polymerization of these protonated 4VP sites exclusively onto Fe3 O4 @SiO2 nanoparticles and subsequent polymerization of other 4VP and divinylbenzene monomers harvested by these protonated 4VP monomers onto Fe3 O4 @SiO2 nanoparticles, thereby achieving direct grafting of cross-linked P4VP macromolecules onto Fe3 O4 @SiO2 nanoparticles. PMID- 29027298 TI - Identification of gelsemine metabolites in rat liver S9 by high-performance liquid chromatography/quadrupole-time-of-flight mass spectrometry. AB - RATIONALE: Gelsemine has been extensively studied because of its anti-tumor, immunomodulatory, insecticidal itching and other significant effects. However, limited information on the pharmacokinetics and metabolism of gelsemine has been reported. Therefore, the purpose of the present study was to investigate the in vitro metabolism of gelsemine in rat liver S9 by using rapid and accurate high performance liquid chromatography/ quadrupole-time-of-flight mass spectrometry (HPLC/QqTOF-MS). METHODS: The incubation mixture was processed with 15% trichloroacetic acid. Multiple scans of gelsemine metabolites and accurate mass measurements were automatically performed simultaneously through data-dependent acquisition in only 30 min. The structural elucidations of these metabolites were performed by comparing their changes in accurate molecular masses and product ions with those of the parent drug. RESULTS: Five metabolites of gelsemine were identified in rat liver S9. Of these, four metabolites of gelsemine were identified for the first time. The present results showed that the metabolic pathways of gelsemine are oxidation, demethylation, and dehydrogenation in rat liver S9. CONCLUSIONS: In this study, metabolites of gelsemine in liver S9 were identified and elucidated firstly using the HPLC/QqTOF-MS method. The proposed metabolic pathways of gelsemine in liver S9 will provide a basis for further studies of the in vivo metabolism of gelsemine in animals and humans. PMID- 29027301 TI - Challenges of post-authorization safety studies: Lessons learned and results of a French study of fentanyl buccal tablet. AB - PURPOSE: Recruiting and retaining participants in real-world studies that collect primary data are challenging. This article illustrates these challenges using a post-authorization safety study (PASS) to assess adverse events (AEs) experienced with fentanyl buccal tablet (FBT) over 3 months of treatment. METHODS: This was an observational, prospective, multicenter study in France conducted over 1 year. The study employed primary data collection in FBT-treated patients and their treating physicians via a site qualification questionnaire and patient log completed by physicians and a questionnaire and pain diary completed by patients. Strategies to increase participation included reminders, newsletters, frequent follow-up telephone calls, and reducing the extent of data collected. RESULTS: Of the 1118 physicians contacted who returned the participation form or responded to a telephone call, only 128 expressed willingness to participate. Key reasons for non-participation were lack of interest (69.7%) and FBT not being used in practice by the contacted physician (25.1%). Overall, 224 patients were screened by 31 physicians, and 97 were enrolled. Key reasons for patient non-inclusion were unwillingness or inability to complete the patient AE diary or questionnaire (40.9% [52/127]) and patients' decision (33.9% [43/127]). CONCLUSIONS: Despite efforts to increase participation, enrollment in this study was low. Recruitment and retention methods are limited in their capacity to optimally execute a primary data collection in a PASS. For a PASS to provide reliable and valid information on medication use, involvement from health care agencies, regulators, and pharmaceutical companies is needed to establish their importance, drive study participation, and reduce patient withdrawal. PMID- 29027302 TI - The re-emerging importance of radiologic-pathologic correlation in reaching the pathology diagnosis. PMID- 29027300 TI - Pattern of in-hospital changes in drug use in the older people from 2010 to 2016. AB - PURPOSE: To assess the pattern of in-hospital changes in drug use in older patients from 2010 to 2016. METHODS: People aged 65 years or more acutely hospitalized in those internal medicine and geriatric wards that did continuously participate to the REgistro POliterapie Societa Italiana di Medicina Interna register from 2010 to 2016 were selected. Drugs use were categorized as 0 to 1 drug (very low drug use), 2 to 4 drugs (low drug use), 5 to 9 drugs (polypharmacy), and 10 or more drugs (excessive polypharmacy). To assess whether or not prevalence of patients in relation to drug use distribution changed overtime, adjusted prevalence ratios (PRs) was estimated with log-binomial regression models. RESULTS: Among 2120 patients recruited in 27 wards continuously participating to data collection, 1882 were discharged alive and included in this analysis. The proportion of patients with very low drug use (0-1 drug) at hospital discharge increased overtime, from 2.7% in 2010 to 9.2% in 2016. Results from a log-logistic adjusted model confirmed the increasing PR of these very low drug users overtime (particularly in 2014 vs 2012, PR 1.83 95% CI 1.14-2.95). Moreover, from 2010 to 2016, there was an increasing number of patients who, on polypharmacy at hospital admission, abandoned it at hospital discharge, switching to the very low drug use group. CONCLUSION: This study shows that in internal medicine and geriatric wards continuously participating to the REgistro POliterapie Societa Italiana di Medicina Interna register, the proportion of patients with a very low drug use at hospital discharge increased overtime, thus reducing the therapeutic burden in this at risk population. PMID- 29027303 TI - Increased maternal insulin resistance promotes placental growth and decreases placental efficiency in pregnancies with obesity and gestational diabetes mellitus. AB - AIM: Homeostasis model assessment for insulin resistance (HOMA-IR) was measured during pregnancy to analyze placental weight and efficiency in relation to maternal insulin resistance. METHODS: A retrospective study of 510 pregnant women (130 with gestational diabetes mellitus [GDM], 380 with normal glucose tolerance) was conducted. We reviewed the patients' demographic data (age, parity, pre pregnancy body mass index [BMI]) and perinatal outcomes (birth weight, placental weight, BMI at delivery, maternal weight gain, HOMA-IR). The birth weight to placental weight (B/P) ratio was calculated for placental efficiency. The subjects were categorized by BMI at delivery, and maternal, neonatal and placental characteristics were compared between the groups to investigate the determinants of placental weight and B/P ratios. RESULTS: Obesity was significantly associated with heavier placental weight and lower B/P ratios. The presence of GDM did not affect placental weight, whereas the B/P ratios in women with GDM were significantly lower than in women with normal glucose tolerance. HOMA-IR was positively correlated with placental weight (rho = 0.217, P < 0.001) and negatively with B/P ratio (rho = -0.181, P < 0.001). CONCLUSIONS: Increased maternal insulin resistance promoted placental growth and inhibited placental efficiency. Maternal insulin resistance may be one of the pathophysiological conditions responsible for altered placental size and function in pregnancies with obesity and GDM. PMID- 29027305 TI - Modeling count data in the addiction field: Some simple recommendations. AB - Analyzing count data is frequent in addiction studies but may be cumbersome, time consuming, and cause misleading inference if models are not correctly specified. We compared different statistical models in a simulation study to provide simple, yet valid, recommendations when analyzing count data.We used 2 simulation studies to test the performance of 7 statistical models (classical or quasi-Poisson regression, classical or zero-inflated negative binomial regression, classical or heteroskedasticity-consistent linear regression, and Mann-Whitney test) for predicting the differences between population means for 9 different population distributions (Poisson, negative binomial, zero- and one-inflated Poisson and negative binomial, uniform, left-skewed, and bimodal). We considered a large number of scenarios likely to occur in addiction research: presence of outliers, unbalanced design, and the presence of confounding factors. In unadjusted models, the Mann-Whitney test was the best model, followed closely by the heteroskedasticity-consistent linear regression and quasi-Poisson regression. Poisson regression was by far the worst model. In adjusted models, quasi-Poisson regression was the best model. If the goal is to compare 2 groups with respect to count data, a simple recommendation would be to use quasi-Poisson regression, which was the most generally valid model in our extensive simulations. PMID- 29027299 TI - Functional characterization of novel NR5A1 variants reveals multiple complex roles in disorders of sex development. AB - Variants in the NR5A1 gene encoding SF1 have been described in a diverse spectrum of disorders of sex development (DSD). Recently, we reported the use of a targeted gene panel for DSD where we identified 15 individuals with a variant in NR5A1, nine of which are novel. Here, we examine the functional effect of these changes in relation to the patient phenotype. All novel variants tested had reduced trans-activational activity, while several had altered protein level, localization, or conformation. In addition, we found evidence of new roles for SF1 protein domains including a region within the ligand binding domain that appears to contribute to SF1 regulation of Mullerian development. There was little correlation between the severity of the phenotype and the nature of the NR5A1 variant. We report two familial cases of NR5A1 deficiency with evidence of variable expressivity; we also report on individuals with oligogenic inheritance. Finally, we found that the nature of the NR5A1 variant does not inform patient outcomes (including pubertal androgenization and malignancy risk). This study adds nine novel pathogenic NR5A1 variants to the pool of diagnostic variants. It highlights a greater need for understanding the complexity of SF1 function and the additional factors that contribute. PMID- 29027304 TI - Sexual Behavior and Heavy Episodic Drinking Across the Transition to Adulthood: Differences by College Attendance. AB - Despite a growing literature on college students' sexual behaviors, little is known about how sexual behaviors, and their associations with alcohol, differ for college and noncollege attenders, and whether these patterns represent changes during college or an extension of pre-college behaviors. This paper applied time varying effect models to data from the National Longitudinal Study of Adolescent to Adult Health to examine (1) prevalence of four sexual behaviors from ages 14 to 24 and (2) how their association with frequent heavy episodic drinking varied across these ages for college and noncollege attenders. Nonattenders have higher prevalence of all sexual behaviors than college attenders across most ages; however, the association between heavy episodic drinking and sexual behaviors is stronger for college attenders during ages 18-20. PMID- 29027306 TI - Fenton reaction-induced renal carcinogenesis in Mutyh-deficient mice exhibits less chromosomal aberrations than the rat model. AB - Oxidative stress including iron excess has been associated with carcinogenesis. The level of 8-oxoguanine, a major oxidatively modified base in DNA, is maintained very low by three distinct enzymes, encoded by OGG1, MUTYH and MTH1. Germline biallelic inactivation of MUTYH represents a familial cancer syndrome called MUTYH-associated polyposis. Here, we used Mutyh-deficient mice to evaluate renal carcinogenesis induced by ferric nitrilotriacetate (Fe-NTA). Although the C57BL/6 background is cancer-resistant, a repeated intraperitoneal administration of Fe-NTA induced a high incidence of renal cell carcinoma (RCC; 26.7%) in Mutyh deficient mice in comparison to wild-type mice (7.1%). Fe-NTA treatment also induced renal malignant lymphoma, which did not occur without the Fe-NTA treatment in both the genotypes. Renal tumor-free survival after Fe-NTA treatment was marginally different (P = 0.157) between the two genotypes. Array-based comparative genome hybridization analyses revealed, in RCC, the loss of heterozygosity in chromosomes 4 and 12 without p16INKA inactivation; these results were confirmed by a methylation analysis and showed no significant difference between the genotypes. Lymphomas showed a preference for genomic amplifications. Dlk1 inactivation by promoter methylation may be involved in carcinogenesis in both tumors. Fe-NTA-induced murine RCCs revealed significantly less genomic aberrations than those in rats, demonstrating a marked species difference. PMID- 29027307 TI - Transient amniotic fluid leakage after fetoscopic laser photocoagulation for twin twin transfusion syndrome. AB - AIM: Iatrogenic premature rupture of membrane (PROM) is one of the major complications related to fetoscopic laser photocoagulation (FLP) for twin-twin transfusion syndrome (TTTS). However, amniotic fluid leakage (AFL) sometimes spontaneously disappears. This study evaluated the incidence and clinical characteristics of transient AFL after FLP. METHODS: We retrospectively reviewed pregnancies that underwent FLP for TTTS at a single center. Patients with apparent AFL within 2 weeks after FLP were divided into two groups: transient AFL, defined by the disappearance of fluid leakage within a week; and PROM, if AFL persisted continuously for more than a week or premature birth occurred, including miscarriage, within a week of the first symptom of AFL. RESULTS: Among 201 monochorionic twin pregnancies that underwent FLP during the study period, nine patients (4.5%) were diagnosed with AFL within a week after FLP. Four patients (2.0%) were classified as transient AFL and five as PROM. Median gestational age at FLP was not significantly different between the groups; operative time in the PROM group was significantly longer (P = 0.01). The surgery to delivery interval and median gestational age at delivery were greater in the transient AFL group (87.8 vs 17.6 days, P = 0.01; 32.5 vs 23.6 weeks, P = 0.01, respectively). CONCLUSIONS: The incidence of transient AFL after FLP was 2%. Perinatal outcomes of transient AFL might be better than that of PROM. PMID- 29027308 TI - Animal models for analyzing metabolic syndrome-associated liver diseases. AB - Metabolic syndrome (MS) is a worldwide healthcare issue and a dominant risk factor for the development of incurable diseases affecting the entire body. The hepatic manifestations of MS include nonalcoholic fatty liver disease (NAFLD) and its progressive variant, nonalcoholic steatohepatitis (NASH). NASH is known to progress to liver cirrhosis and hepatocellular carcinoma (HCC). Excellent animal models for determining the mechanism of pathogenesis and establishing therapeutic treatment of NASH/HCC are strongly required worldwide. We recently reported that two previously established mouse models of obesity and diabetes mellitus, namely, Tsumura-Suzuki Obese Diabetes (TSOD) mice and MSG mice, developed MS-associated NASH and that their clinical course and pathological characteristics closely mimicked those of human MS-NASH patients. Interestingly, most of the mice developed HCC with advancing age, and the pathological and functional characteristics of this condition were identical to those of human HCC. We further established a novel mouse model of HCC based on type 1 diabetes (DIAR nSTZ mice) and reported its histopathological features. By comparing various aspects of these mouse models, specific and useful characteristics in a suitable model of MS-associated liver diseases, including hepato-carcinogenesis, can be highlighted. PMID- 29027310 TI - Ruptured external iliac artery pseudoaneurysm following surgery for ovarian cancer: A case report and literature review. AB - Ruptured pseudoaneurysm following pelvic surgery is a rare and fatal complication. Because of its rarity, existing evidence is limited to a small case series. A 60-year-old woman underwent staging laparotomy, including pelvic and para-aortic lymphadenectomy, for ovarian cancer. On the 11th day, the patient developed a sudden lumbar pain and loss of consciousness, which resulted in a state of shock. She was diagnosed as having a pelvic abscess and ruptured external iliac artery pseudoaneurysm. We performed ligation of the external iliac artery to restrain hemorrhage and femoro-femoral artery bypass to prevent infection, which saved the patient's life. Our study had two findings. First, this is the first reported case of ruptured external iliac artery pseudoaneurysm following surgery for ovarian cancer. Second, treatment of ruptured pseudoaneurysm requires rapid hemostasis, prevention of infection, and revascularization. PMID- 29027309 TI - The importance of symptoms in the longitudinal variability of clusters in COPD patients: A validation study. AB - BACKGROUND AND OBJECTIVE: Cluster analysis has been utilized to explore phenotypic heterogeneity in chronic obstructive pulmonary disease (COPD). To date, little is known about the longitudinal variability of clusters in COPD patients. We aimed to evaluate the 2-year cluster variability in stable COPD patients. METHODS: We evaluated the following variables in COPD patients at baseline and 2 years later: age, gender, pack-year history, body mass index (BMI), modified Medical Research Council (MMRC) scale, 6-min walking distance (6MWD), spirometry and COPD Assessment Test (CAT). Patient classification was performed using cluster analysis at baseline and 2 years later. Each patient's cluster variability after 2 years and its parameters associated with cluster change were explored. RESULTS: A total of 521 smokers with COPD were evaluated at baseline and 2 years later. Three different clusters were consistently identified at both evaluation times: cluster A (of younger age, mild airway limitation, few symptoms), cluster B (intermediate) and cluster C (of older age, severe airway limitation and highly symptomatic). Two years later, 70% of patients were unchanged, whereas 30% changed from one cluster to another: 20% from A to B; 15% from B to A; 15% from B to C; 42% from C to B and 8% from C to A. 6MWD, forced expiratory volume in 1 s (FEV1 ) % and CAT were the principal parameters responsible for this change. CONCLUSION: After 2 years of follow-up, most of the COPD patients maintained their cluster assignment. Exercise tolerance, lung function and quality of life were the main driving parameters in those who change their cluster assignment. PMID- 29027311 TI - Natural Compound Licochalcone B Induced Extrinsic and Intrinsic Apoptosis in Human Skin Melanoma (A375) and Squamous Cell Carcinoma (A431) Cells. AB - Licochalcone B (Lico B), which is normally isolated from the roots of Glycyrrhiza inflata (Chinese Licorice), generally classified into organic compounds including retrochalcones. Potential pharmacological properties of Lico B include anti inflammatory, anti-bacterial, anti-oxidant, and anti-cancer activities. However, its biological effects on melanoma and squamous cell carcinoma (SCC) are unknown. Based on these known facts, this study investigated the role of Lico B in apoptosis, through the extrinsic and intrinsic pathways and additional regulation of specificity protein 1 in human skin cancer cell lines. Annexin V/7 aminoactinomycin D staining, western blot analysis, mitochondrial membrane potential assay, and an anchorage-independent cell transformation assay demonstrated that Lico B treatment of human melanoma and SCC cells significantly inhibited cell proliferation and induced apoptotic cell death. More specifically, Lico B induced apoptosis through the regulation of specificity protein 1 and apoptosis-related proteins including CCAAT/enhancer-binding protein homologous protein, death receptors, and poly (ADP-ribose) polymerase. These results indicate that Lico B has apoptotic effect on A375 and A431 skin cancer cells, suggesting the potential value of Lico B for the treatment of human melanoma and SCC. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29027312 TI - Cyclophilin A expression and its prognostic significance in lung adenocarcinoma. AB - Cyclophilin A (CypA) has been reported to be upregulated in malignant tumors. CypA expression is thought to be associated with acquisition of tumor growth and anti-apoptotic function. Although upregulation of CypA has been reported in lung adenocarcinoma, its clinicopathological significance and roles in malignant progression remain unclear. Here we investigated the implications of CypA expression for outcome in patients with lung adenocarcinoma. Lung adenocarcinoma specimens from 198 cases were selected and reclassified according to the World Health Organization classification (4th edition) and the Noguchi classification. CypA expression was assessed by immunohistochemistry, and the H-score was calculated on the basis of intensity and proportion. The specificity of the antibody used was confirmed by Western blotting and the cut-off point was determined from the ROC curve. Sixty-seven cases (33.8%) had low CypA expression (CypA-L group) and 131 (66.2%) had high CypA expression (CypA-H group). Many cases of adenocarcinoma in situ were CypA-L, and advanced adenocarcinomas tended to be classified as CypA-H. Clinically, patients with CypA-H tumors showed a significantly poorer prognosis than those with CypA-L tumors. This is the first investigation of the implications of the CypA expression level in terms of the clinical characteristics of resected lung adenocarcinomas. PMID- 29027313 TI - Patient experiences with care across various types of mental health care: Questionnaire development, measurement invariance, and patients' reports. AB - To describe the development, validation, and findings of a patient experience questionnaire across 7 types of residential and ambulatory mental health care services. Thirty-five items were hypothesized to cover information, participation, therapeutic relationship, personalized care, organization and collaboration, safety, patient rights, outcomes of care, and discharge preparation and after-care. Also included were 2 overall rating items (scoring and recommending the organization). This Dutch questionnaire was applied in 79 organizations in Belgium (N patients = 5,168). Exploratory structural equation modelling was conducted on a random split-half sample to examine dimensionality. Confirmatory factor analysis and multiple group confirmatory factor analyses were conducted on the holdout sample to confirm dimensionality and assess measurement invariance across type of service and patient characteristics. Multilevel logistic regression models linking subscale top box scores to overall rating items were used to assess criterion validity. The hypothesized dimensionality was partly confirmed, and configural and scalar invariance were demonstrated across types of organizations and patient characteristics. Subscale scores were significantly associated with overall ratings. Process evaluation showed that participating organizations strongly support continued use of this questionnaire. This validated patient experience questionnaire supports comparison across organizations from different types of services to improve the quality of mental health care. PMID- 29027316 TI - Abstracts of the 10th European Congress on Tropical Medicine and International Health, 16-20 October 2017, Antwerp, Belgium. PMID- 29027314 TI - The relationship between attitudes toward aging and health-promoting behaviours in older adults. AB - BACKGROUND: Identifying the factors that are associated with health-promoting behaviours in older adults is necessary to increase their willingness and motivation to participate in health-promotion activities. Understanding context specific attitudes in relation to their influence on health-promoting behaviours is crucial in designing efficient interventions that foster health-promoting behaviours among older adults. AIM: This study aimed to examine the relationships between attitudes towards aging and health-promoting behaviours in older adults in Turkey. METHODS: The study used a descriptive-correlational design. A convenience sample of 448 community-dwelling older adults who were 65 years and older and cognitively intact were selected from 6 family health centres in the city of Denizli in Turkey. The data were collected between March and June of 2014 using the Attitudes to Aging Questionnaire and the Health-Promoting Lifestyle Profile II. Multiple linear regression analysis was performed to explore the predictors of health-promoting behaviours. FINDINGS: Attitudes toward aging, the psychosocial loss subscale, and education were statistically significant predictors of health-promoting behaviours. Attitudes toward aging were the strongest predictor of health-promoting behaviours in older adults. CONCLUSION: Attitude towards aging is a factor that affects health-promoting behaviours, and it should be considered during interventions for improving health promoting behaviours. PMID- 29027315 TI - Cost effectiveness analysis of carbetocin during cesarean section in a high volume maternity unit. AB - AIM: To evaluate the cost effectiveness of carbetocin compared to oxytocin when used as prophylaxis against post-partum hemorrhage (PPH) during cesarean deliveries. METHODS: A systematic review of the literature was performed to identify randomized controlled trials that compared the use of carbetocin to oxytocin in the context of cesarean deliveries. Cost effectiveness analysis was then performed using secondary data from the perspective of a maternity unit within the Malaysian Ministry of Health, over a 24 h time period. RESULTS: Seven randomized controlled trials with over 2000 patients comparing carbetocin with oxytocin during cesarean section were identified. The use of carbetocin in our center, which has an average of 3000 cesarean deliveries annually, would have prevented 108 episodes of PPH, 104 episodes of transfusion and reduced the need for additional uterotonics in 455 patients. The incremental cost effectiveness ratio of carbetocin for averting an episode of PPH was US$278.70. CONCLUSION: Reduction in retreatment, staffing requirements, transfusion and potential medication errors mitigates the higher index cost of carbetocin. From a pharmacoeconomic perspective, in the context of cesarean section, carbetocin was cost effective as prophylaxis against PPH. Ultimately, the relative value placed on the outcomes above and the individual unit's resources would influence the choice of uterotonic. PMID- 29027318 TI - Imaging and pathology features to predict axillary tumor load in breast cancer. AB - AIM: We investigated if imaging and pathology features could help to identify a high axillary tumor burden (ATB) in breast cancer patients, in order to individualize decisions on axillary lymph node (ALN) dissection (ALND). METHODS: We retrospectively analyzed patients primarily treated with surgery in our unit between 2011 and 2014. We divided the patients in two groups: low ATB (LATB) if <= 2 ALN were infiltrated and high ATB (HATB) if > 2 ALN were infiltrated. RESULTS: Data of 105 patients was included in the study. Axillary ultrasound (AUS) features associated with HATB were any sign of ALN infiltration (76 vs 24%, P = 0.027) and > 2 suspicious ALNs (73% vs 27%, P = 0.018); however, when AUS revealed <= 2 suspicious ALNs, 39% of these patients had HATB. Any sign of ALN infiltration on magnetic resonance imaging was associated with HATB (48% vs 52%, P = 0.031). Positive preoperative ALN cytology or biopsy was associated with HATB (53% vs 47%, P = 0.008), while p53 positivity (80% vs 20%) and high histological grade (68% vs. 32%) correlated with LATB (P = 0.05 and P = 0.02, respectively). In multivariate analysis, only positive preoperative ALN cytology or biopsy was associated with HATB (P = 0.038). CONCLUSIONS: AUS was useful for detecting HATB but was not as effective in patients with LATB. Proving axillary infiltration with AUS-directed cytology or biopsy is the most effective method to predict HATB. PMID- 29027319 TI - Pregnancy in immunoglobulin M nephropathy. AB - Immunoglobulin M nephropathy is an uncommon glomerular disease and a relatively less recognized clinico-immunopathological entity in the domain of glomerulonephritis, often thought to be a bridge between minimal change disease and focal segmental glomerulosclerosis. It is characterized by asymptomatic hematuria, episodes of macroscopic hematuria and proteinuria. Corticosteroids remain the mainstay of therapeutic strategies for such patients. We present what we believe to be the first known case of successful pregnancy in a 40-year-old woman with a 12-year history of underlying immunoglobulin M nephropathy. In view of the rarity of this disease we hope this report will assist professionals managing such cases. PMID- 29027320 TI - Trends in oncoplastic breast surgery and breast reconstruction over the past 35 years. PMID- 29027317 TI - Exposure to omentum adipose tissue conditioned medium from obese pregnant women promotes myometrial artery dysfunction. AB - AIM: Underlying mechanisms of poor pregnancy outcome in obese (OB) mothers (body mass index [BMI] >= 30 kg/m2 ) are unknown. Our studies demonstrate that OB pregnant women have altered myometrial artery (MA) function related to the thromboxane and nitric oxide pathways. In obesity, increased central fat mass is associated with an altered endocrine milieu. We tested the hypothesis that in OB pregnant women the omentum, a central fat store, releases factors that promote dysfunction in normal MAs. METHODS: Myometrial and omental adipose tissue biopsies were obtained from women with uncomplicated term pregnancies. Omental adipose tissue explants from six normal weight (NW; BMI 18.5-24.9 kg/m2 ) and six OB (BMI >= 30 kg/m2 ) women were cultured and the conditioned medium collected and pooled to produce NW medium and OB medium. Adipokine concentrations were measured using enzyme-linked immunosorbent assays. Wire myography was used to assess the effect of conditioned medium (NW or OB; N = 7) or leptin (100 nM; N = 5) exposure on MA responses to U46619 (thromboxane-mimetic) and bradykinin (endothelial-dependent vasodilator). RESULTS: OB medium had higher leptin and lower adiponectin levels than NW medium. U46619 and bradykinin concentration response curves shifted upwards in MAs exposed to OB medium but were unaffected by leptin. CONCLUSIONS: Omental adipose tissue from OB pregnant women produced altered concentrations of adipokines. Acute OB medium exposure induced MA dysfunction, an effect not mirrored by exposure to leptin. These data suggest that an aberrant endocrine environment created by increased central adiposity in OB pregnant women induces vascular endothelial dysregulation, which may predispose them to a poor pregnancy outcome. PMID- 29027321 TI - Jumping down the rabbit hole: unravelling the right ventricle in heart failure. PMID- 29027322 TI - Inotropes and vasopressors in acute heart failure, when the devil dresses as an angel. PMID- 29027323 TI - Response to 'Silent uterine rupture occluded by intestinal adhesions following laparoscopic myomectomy: A case report': Do some remain permanently silent? PMID- 29027324 TI - Circulating microRNA-132 levels improve risk prediction for heart failure hospitalization in patients with chronic heart failure. AB - AIMS: Non-coding microRNAs (miRNAs) are critically involved in cardiovascular pathophysiology. Since they are measurable in most body fluids, they have been proposed as circulating biomarkers. We examined the prognostic value of a specific candidate miRNA in a large cohort of patients with chronic heart failure (HF) enrolled in a multicentre clinical trial. METHODS AND RESULTS: Plasma levels of miR-132 were measured using miRNA-specific PCR-based technologies at randomization in 953 patients with chronic, symptomatic HF from the GISSI-Heart Failure trial. The association with fatal (all-cause and cardiovascular death) and non-fatal events (time to first admission to hospital for cardiovascular reasons or worsening of HF) and the incremental risk prediction were estimated in adjusted models. Higher circulating miR-132 levels were independently associated with younger age, better renal filtration, ischaemic aetiology of HF, more severe HF symptoms, higher diastolic blood pressure, higher cholesterol, and male sex. After extensive adjustment for demographic, clinical, and echocardiographic risk factors and baseline NT-proBNP concentrations, miR-132 remained associated only with HF hospitalizations (hazard ratio 0.79, 95% confidence interval 0.66-0.95, P = 0.01) and improved its risk prediction with the continuous net reclassification index (cNRI 0.205, P = 0.001). CONCLUSION: In well characterized patients with chronic HF, circulating miR-132 levels rise with the severity of HF. Lower circulating miR-132 levels improved risk prediction for HF readmission beyond traditional risk factors, but not for mortality. MiR-132 may be helpful to intensify strategies aimed at reducing re-hospitalization, which has a substantial health and economic burden in HF. PMID- 29027326 TI - Daytime periodic breathing during short-term laboratory recordings in heart failure patients: the iceberg tip of central sleep apnoea? PMID- 29027327 TI - Laparoscopic ventral hernia repair using only 5-mm ports. AB - BACKGROUND: The technique of laparoscopic ventral hernia repair has been evolving since it was first described over 20 years ago. We report a new technique where polyester mesh was back loaded through a 5-mm port site, coming into contact with the skin. This avoids the need for any 10-12-mm ports. METHODS: A prospective database of laparoscopic ventral hernia repairs was examined. A single surgeon performed 344 laparoscopic ventral hernia repairs using this technique over 60 months. Follow-up was conducted by both clinical and independent phone review. SURGICAL TECHNIQUE: Laparoscopic access was achieved via a 5-mm optical port, adding two, or occasionally three, 5-mm extra ports. Hernia contents were reduced and the extra-peritoneal fat excised; 5-mm tooth graspers were placed through the lateral port and then in a retrograde fashion through the uppermost port. The port was removed, and the mesh pulled back into the abdominal cavity and positioned with a minimum of 3-cm overlap. The mesh was fixed using absorbable tacks and sutures. RESULTS: Most patients had primary umbilical hernias. There was one case of mesh infection due to enteric organisms. This occurred in a patient undergoing repair of a stoma site hernia, resulting from a Hartmann's procedure for perforated diverticulitis. There was no other evidence of acute or chronic mesh infection despite cutaneous contact with the mesh. In this series, there was an overall hernia recurrence rate of 2.4%. CONCLUSION: Laparoscopic ventral hernia repair using only 5-mm ports is a safe, effective technique with no extra risk of infection. PMID- 29027325 TI - Ecological plant epigenetics: Evidence from model and non-model species, and the way forward. AB - Growing evidence shows that epigenetic mechanisms contribute to complex traits, with implications across many fields of biology. In plant ecology, recent studies have attempted to merge ecological experiments with epigenetic analyses to elucidate the contribution of epigenetics to plant phenotypes, stress responses, adaptation to habitat, and range distributions. While there has been some progress in revealing the role of epigenetics in ecological processes, studies with non-model species have so far been limited to describing broad patterns based on anonymous markers of DNA methylation. In contrast, studies with model species have benefited from powerful genomic resources, which contribute to a more mechanistic understanding but have limited ecological realism. Understanding the significance of epigenetics for plant ecology requires increased transfer of knowledge and methods from model species research to genomes of evolutionarily divergent species, and examination of responses to complex natural environments at a more mechanistic level. This requires transforming genomics tools specifically for studying non-model species, which is challenging given the large and often polyploid genomes of plants. Collaboration among molecular geneticists, ecologists and bioinformaticians promises to enhance our understanding of the mutual links between genome function and ecological processes. PMID- 29027328 TI - Rare case of Bouveret syndrome. PMID- 29027329 TI - Duration of chronic heart failure affects outcomes with preserved effects of heart rate reduction with ivabradine: findings from SHIFT. AB - AIMS: In heart failure (HF) with reduced ejection fraction and sinus rhythm, heart rate reduction with ivabradine reduces the composite incidence of cardiovascular death and HF hospitalization. METHODS AND RESULTS: It is unclear whether the duration of HF prior to therapy independently affects outcomes and whether it modifies the effect of heart rate reduction. In SHIFT, 6505 patients with chronic HF (left ventricular ejection fraction of <=35%), in sinus rhythm, heart rate of >=70 b.p.m., treated with guideline-recommended therapies, were randomized to placebo or ivabradine. Outcomes and the treatment effect of ivabradine in patients with different durations of HF were examined. Prior to randomization, 1416 ivabradine and 1459 placebo patients had HF duration of >=4 weeks and <1.5 years; 836 ivabradine and 806 placebo patients had HF duration of 1.5 years to <4 years, and 989 ivabradine and 999 placebo patients had HF duration of >=4 years. Patients with longer duration of HF were older (62.5 years vs. 59.0 years; P < 0.0001), had more severe disease (New York Heart Association classes III/IV in 56% vs. 44.9%; P < 0.0001) and greater incidences of co morbidities [myocardial infarction: 62.9% vs. 49.4% (P < 0.0001); renal dysfunction: 31.5% vs. 21.5% (P < 0.0001); peripheral artery disease: 7.0% vs. 4.8% (P < 0.0001)] compared with patients with a more recent diagnosis. After adjustments, longer HF duration was independently associated with poorer outcome. Effects of ivabradine were independent of HF duration. CONCLUSIONS: Duration of HF predicts outcome independently of risk indicators such as higher age, greater severity and more co-morbidities. Heart rate reduction with ivabradine improved outcomes independently of HF duration. Thus, HF treatments should be initiated early and it is important to characterize HF populations according to the chronicity of HF in future trials. PMID- 29027330 TI - Poor nutrition from first foods: A cross-sectional study of complementary feeding of infants and young children in six remote Aboriginal communities across northern Australia. AB - AIM: To describe the first foods of Aboriginal and Torres Strait Islander infants and young children who were recruited to a nutrition promotion and anaemia prevention program conducted from 2010 to 2012, in six remote communities across northern Australia. METHODS: Food records (24-hour diet history, food variety checklist) were completed on recruitment by interview with a parent or carer. Cross-sectional analysis assessed the proportion of participants consuming recommended and not-recommended foods and drinks and meeting recommendations for meal frequency and dietary diversity. RESULTS: Of 245 Aboriginal and Torres Strait Islander participants aged 6-24 months, 227 (92.7%) had a recruitment food record. On the previous day, most (67.4%) had breastmilk, nearly all (98.2%) ate solid food, but only 13% ate fruit, 33% had neither fruit nor vegetables, and 25% had sweet drinks. Children living in smaller households (3-5 people) were more likely to meet the criteria for frequency of meals than those living in larger households of 12-31 people (93% vs 78%, P = 0.012 for trend over household size). Only 30% met the criteria for dietary diversity. Where information was available (n = 91), dietary diversity was adequate more often in 'pay week' compared to 'not pay week' (31.3% vs 9.3%, P = 0.007). CONCLUSION: Support for current beneficial breast-feeding practices and promotion of nutrient-dense complementary foods, need to be embedded in initiatives for improved family food security. Good nutrition in early life can reduce the disparity in health, education and economic status between Aboriginal and Torres Strait Islander peoples and other Australians. PMID- 29027331 TI - When does it pay to invest in a patch? The evolution of intentional niche construction. AB - Humans modify their environments in ways that significantly transform the earth's ecosystems. Recent research suggests that such niche-constructing behaviors are not passive human responses to environmental variation, but instead should be seen as active and intentional management of the environment. Although such research is useful in highlighting the interactive dynamics between humans and their natural world, the niche-construction framework, as currently applied, fails to explain why people would decide to modify their environments in the first place. To help resolve this problem, we use a model of technological intensification to analyze the cost-benefit trade-offs associated with niche construction as a form of patch investment. We use this model to assess the costs and benefits of three paradigmatic cases of intentional niche construction in Western North America: the application of fire in acorn groves, the manufacture of fishing weirs, and the adoption of maize agriculture. Intensification models predict that investing in patch modification (niche construction) only provides a net benefit when the amount of resources needed crosses a critical threshold that makes the initial investment worthwhile. From this, it follows that low-cost investments, such as burning in oak groves, should be quite common, while more costly investments, such as maize agriculture, should be less common and depend on the alternatives available in the local environment. We examine how patterns of mobility, risk management, territoriality, and private property also co-evolve with the costs and benefits of niche construction. This approach illustrates that explaining niche-constructing behavior requires understanding the economic trade offs involved in patch investment. Integrating concepts from niche construction and technological intensification models within a behavioral ecological framework provides insights into the coevolution and active feedback between adaptive behaviors and environmental change across human history. PMID- 29027332 TI - Demic and cultural diffusion in prehistoric Europe in the age of ancient genomes. AB - Ancient genomes can help us detect prehistoric migrations, population contractions, and admixture among populations. Knowing the dynamics of demography is invaluable for understanding culture change in prehistory, particularly the roles played by demic and cultural diffusion in transformations of material cultures. Prehistoric Europe is a region where ancient genome analyses can help illuminate the interplay between demography and culture change. In Europe, there is more archeological evidence, in terms of detailed studies, radiometric dates, and explanatory hypotheses that can be evaluated, than in any other region of the world. Here I show some important ways that ancient genomes have given us insights into population movements in European prehistory. I also propose that studies might be increasingly focused on specific questions of culture change, for example in evaluating the makers of "transitional" industries as well as the origins of the Gravettian and spread of the Magdalenian. I also discuss genomic evidence supporting the large role that demic expansion has played in the Neolithization of Europe and the formation of the European population during the Bronze Age. PMID- 29027333 TI - From your seat on the train: Even in science, what you see depends on your point of view. PMID- 29027334 TI - Anthropologists get jazzed for science in New Orleans. PMID- 29027335 TI - Occasional, obligatory, and habitual stone tool use in hominin evolution. AB - Archeologists have long assumed that earlier hominins were obligatory stone tool users. This assumption is deeply embedded in traditional ways of describing the lithic record. This paper argues that lithic evidence dating before 1.7 Ma reflects occasional stone tool use, much like that practiced by nonhuman primates except that it involved flaked-stone cutting tools. Evidence younger than 0.3 Ma is more congruent with obligatory stone tool use, like that among recent humans. The onset of habitual stone tool use at about 1.7 Ma appears correlated with increased hominin logistical mobility (carrying things). The onset of obligatory stone tool use after 0.3 Ma may be linked to the evolution of spoken language. Viewing the lithic evidence dating between 0.3-1.7 Ma as habitual stone tool use explains previously inexplicable aspects of the Early-Middle Pleistocene lithic record. PMID- 29027336 TI - Trends in utilization of benzodiazepine and Z-drugs in Israel. AB - BACKGROUND: Studies on benzodiazepine (BZDs) as well as Zopiclone and Zolpidem (Z drugs) utilization are important for estimating the prevalence of medical conditions, providing the basis for pharmacovigilance, and identifying temporal trends of consumption. Such studies that involve the Israeli population have not been conducted yet. PURPOSE: Identify trends over time in utilization of BZDs and Z-drugs in a nationwide population in Israel. METHODS: Data on BZD and Z-drugs utilization (for all indications) for the period 2005 to 2013 were obtained from pharmaceutical companies that distribute BZDs in Israel. Prevalence of BZD utilization was reported as defined daily doses (DDD)/1000 inhabitants/day. RESULTS: The utilization of BZDs and Z-drugs aimed to treat sleeping disorders increased over the period of the study from 10.22 to 22.49 DDD/1000 inhabitants/day. The greatest increases in utilization of drugs established in Israel were observed for brotizolam (83%), zopiclone (59%), and zolpidem (94%). Decreases in use were recorded for lorazepam (14%), diazepam (16%), and oxazepam (27%). Use of hypnotic BZDs appeared to be relatively high, compared with the use of non-BZD hypnotics ("Z-drugs") such as zolpidem or zopiclone. Nationwide stressful conditions did not appear to be reflected in the annual BZD sales. CONCLUSIONS: Conventional BZDs and Z-drugs remained the treatment of choice for sleeping disorders in Israel during the study period. These results are, in certain cases, in contrast to current practice recommendations and guidelines and point at a need in better dissemination of these guidelines among prescribers in Israel. PMID- 29027337 TI - Acute kidney injury in cardiogenic shock: in search of early detection and clinical certainty. PMID- 29027338 TI - Stoichiometric distribution models: ecological stoichiometry at the landscape extent. AB - Human activities are altering the fundamental geography of biogeochemicals. Yet we lack an understanding of how the spatial patterns in organismal stoichiometry affect biogeochemical processes and the tools to predict the impacts of global changes on biogeochemical processes. In this contribution we develop stoichiometric distribution models (StDMs), which allow us to map spatial structure in resource elemental composition across a landscape and evaluate spatial responses of consumers. We parameterise StDMs for a consumer-resource (moose-white birch) system and demonstrate that we can develop predictive models of resource stoichiometry across a landscape and that such models could improve our predictions of consumer space use. With results from our study system application, we argue that explicit consideration of the spatial patterns in organismal elemental composition may uncover emergent individual, population, community and ecosystem properties that are not revealed at the local extents routinely used in ecological stoichiometry. We discuss perspectives for further developments and application of StDMs to advance three emerging frameworks for spatial ecosystem ecology in an era of global change; meta-ecosystem theory, macroecological stoichiometry and remotely sensed biogeochemistry. Progress on these emerging frameworks will allow for the integration of ecological stoichiometry and individual space use and fitness. PMID- 29027339 TI - Evidence of continuity of mesentery from duodenum to rectum from human cadaveric dissection - a video vignette. PMID- 29027340 TI - Can I get pregnant again? PMID- 29027341 TI - Tropical soils are a reservoir for fluorescent Pseudomonas spp. biodiversity. AB - Fluorescent Pseudomonas spp. are widely studied for their beneficial activities to plants. To explore the genetic diversity of Pseudomonas spp. in tropical regions, we collected 76 isolates from a Brazilian soil. Genomes were sequenced and compared to known strains, mostly collected from temperate regions. Phylogenetic analyses classified the isolates in the P. fluorescens (57) and P. putida (19) groups. Among the isolates in the P. fluorescens group, most (37) were classified in the P. koreensis subgroup and two in the P. jessenii subgroup. The remaining 18 isolates fell into two phylogenetic subclades distinct from currently recognized P. fluorescens subgroups, and probably represent new subgroups. Consistent with their phylogenetic distance from described subgroups, the genome sequences of strains in these subclades are asyntenous to the genome sequences of members of their neighbour subgroups. The tropical isolates have several functional genes also present in known fluorescent Pseudomonas spp. strains. However, members of the new subclades share exclusive genes not detected in other subgroups, pointing to the potential for novel functions. Additionally, we identified 12 potential new species among the 76 isolates from the tropical soil. The unexplored diversity found in the tropical soil is possibly related to biogeographical patterns. PMID- 29027342 TI - Study on nutritional monitoring of Persian malnourished school students: A check on reproducibility and validity of questionnaire. AB - AIM: To develop a nutritional screening tool and examine its reliability and validity in elementary school children with malnutrition based on PRECEDE-PROCEED model, in Shiraz, Iran. METHODS: A questionnaire was designed and its reproducibility was analysed via test-retest design among students with malnutrition. The students were in the fourth to sixth grades. Validity was assessed using face validity, content validity, construct validity, item difficulty and item discrimination. Reliability was measured by Cronbach's alpha (internal consistency), the intra-class correlation coefficient (ICC) and kappa statistics (test-retest reliability). RESULTS: A total of 165 primary school students (mean age of 11.21 +/- 1.08 years, 65.5% females) participated in the study. The PRECEDE-PROCEED theoretical model for health education was adapted for this questionnaire. The questionnaire was divided into four main sections: predisposing, reinforcing, enabling factors and behaviour. Coefficient alpha reliability estimate was above 0.9 for most scales. The ICCs for different scales of the questionnaire were within the range of 0.402-0.800. Values for kappa ranged from 0.412 to 0.785 for most scales. CONCLUSIONS: The results showed reasonable validity, excellent reliability and moderate to substantial reproducibility for all scales of the questionnaire except two questions for kappa statistics. The present study is of great importance, as there are no psychometrically evaluated tools (based on health behaviour models) with accepted validity and reliability for the evaluation of such factors in children with malnutrition. The questionnaire developed in the present study can be used to assess the effect of intervention among primary school students with malnutrition. PMID- 29027343 TI - Species reordering, not changes in richness, drives long-term dynamics in grassland communities. AB - Determining how ecological communities will respond to global environmental change remains a challenging research problem. Recent meta-analyses concluded that most communities are undergoing compositional change despite no net change in local species richness. We explored how species richness and composition of co occurring plant, grasshopper, breeding bird and small mammal communities in arid and mesic grasslands changed in response to increasing aridity and fire frequency. In the arid system, grassland and shrubland plant and breeding bird communities were undergoing directional change, whereas grasshopper and small mammal communities were stable. In the mesic system, all communities were undergoing directional change regardless of fire frequency. Despite directional change in composition in some communities, species richness of all communities did not change because compositional change resulted more from reordering of species abundances than turnover in species composition. Thus, species reordering, not changes in richness, explains long-term dynamics in these grass and shrub dominated communities. PMID- 29027344 TI - Species are not most abundant in the centre of their geographic range or climatic niche. AB - The pervasive idea that species should be most abundant in the centre of their geographic range or centre of their climatic niche is a key assumption in many existing ecological hypotheses and has been declared a general macroecological rule. However, empirical support for decreasing population abundance with increasing distance from geographic range or climatic niche centre (distance abundance relationships) remains fairly weak. We examine over 1400 bird, mammal, fish and tree species to provide a thorough test of distance-abundance relationships, and their associations with species traits and phylogenetic relationships. We failed to detect consistent distance-abundance relationships, and found no association between distance-abundance slope and species traits or phylogenetic relatedness. Together, our analyses suggest that distance-abundance relationships may be rare, difficult to detect, or are an oversimplification of the complex biogeographical forces that determine species spatial abundance patterns. PMID- 29027345 TI - A Strategy for Specific Fluorescence Imaging of Monoamine Oxidase A in Living Cells. AB - Monoamine oxidase (MAO) has two isoforms, MAO-A and MAO-B, which show different functions, and thus selective fluorescence imaging is important for biological studies. Currently, however, specific detection of MAO-A remains a great challenge. Herein, we report a new strategy for specific imaging of MAO-A through the design of fluorogenic probes combining the characteristic structure of an inhibitor of the target enzyme along with propylamine as a recognition moiety. The high specificity of our representative probe is demonstrated by imaging MAO-A in different live cells such as SH-SY5Y (high levels of MAO-A) and HepG2 (high levels of MAO-B), and further validated by western blot analyses. The superior specificity of the probe may enable the accurate detection of MAO-A in complex biosystems. Importantly, the use of the characteristic structure of an inhibitor, as demonstrated in this work, may serve as a general strategy to design specific recognition moieties for fluorogenic probes for enzymes. PMID- 29027347 TI - A two-step evolutionary process establishes a non-native vitamin B6 pathway in Bacillus subtilis. AB - Pyridoxal 5'-phosphate (PLP), the most important form of vitamin B6 serves as a cofactor for many proteins. Two alternative pathways for de novo PLP biosynthesis are known: the short deoxy-xylulose-5-phosphate (DXP)-independent pathway, which is present in the Gram-positive model bacterium Bacillus subtilis and the longer DXP-dependent pathway, which has been intensively studied in the Gram-negative model bacterium Escherichia coli. Previous studies revealed that bacteria contain many promiscuous enzymes causing a so-called 'underground metabolism', which can be important for the evolution of novel pathways. Here, we evaluated the potential of B. subtilis to use a truncated non-native DXP-dependent PLP pathway from E. coli for PLP synthesis. Adaptive laboratory evolution experiments revealed that two non-native enzymes catalysing the last steps of the DXP dependent PLP pathway and two genomic alterations are sufficient to allow growth of vitamin B6 auxotrophic bacteria as rapid as the wild type. Thus, the existence of an underground metabolism in B. subtilis facilitates the generation of a pathway for synthesis of PLP using parts of a non-native vitamin B6 pathway. The introduction of non-native enzymes into a metabolic network and rewiring of native metabolism could be helpful to generate pathways that might be optimized for producing valuable substances. PMID- 29027346 TI - Application of stable-isotope labelling techniques for the detection of active diazotrophs. AB - Investigating active participants in the fixation of dinitrogen gas is vital as N is often a limiting factor for primary production. Biological nitrogen fixation is performed by a diverse guild of bacteria and archaea (diazotrophs), which can be free-living or symbionts. Free-living diazotrophs are widely distributed in the environment, yet our knowledge about their identity and ecophysiology is still limited. A major challenge in investigating this guild is inferring activity from genetic data as this process is highly regulated. To address this challenge, we evaluated and improved several 15 N-based methods for detecting N2 fixation activity (with a focus on soil samples) and studying active diazotrophs. We compared the acetylene reduction assay and the 15 N2 tracer method and demonstrated that the latter is more sensitive in samples with low activity. Additionally, tracing 15 N into microbial RNA provides much higher sensitivity compared to bulk soil analysis. Active soil diazotrophs were identified with a 15 N-RNA-SIP approach optimized for environmental samples and benchmarked to 15 N DNA-SIP. Lastly, we investigated the feasibility of using SIP-Raman microspectroscopy for detecting 15 N-labelled cells. Taken together, these tools allow identifying and investigating active free-living diazotrophs in a highly sensitive manner in diverse environments, from bulk to the single-cell level. PMID- 29027348 TI - Type VI secretion systems in plant-associated bacteria. AB - The type VI secretion system (T6SS) is a bacterial nanomachine used to inject effectors into prokaryotic or eukaryotic cells and is thus involved in both host manipulation and interbacterial competition. The T6SS is widespread among Gram negative bacteria, mostly within the Proteobacterium Phylum. This secretion system is commonly found in commensal and pathogenic plant-associated bacteria. Phylogenetic analysis of phytobacterial T6SS clusters shows that they are distributed in the five main clades previously described (group 1-5). The even distribution of the system among commensal and pathogenic phytobacteria suggests that the T6SS provides fitness and colonization advantages in planta and that the role of the T6SS is not restricted to virulence. This manuscript reviews the phylogeny and biological roles of the T6SS in plant-associated bacteria, highlighting a remarkable diversity both in terms of mechanism and function. PMID- 29027349 TI - Aerobic exercise training lowers platelet reactivity and improves platelet sensitivity to prostacyclin in pre- and postmenopausal women. AB - : Essentials It is unknown how regular exercise affects platelet function after menopause. We studied the effect of 3-months of high-intensity exercise in pre- and postmenopausal women. Platelet sensitivity to the inhibitory effect of arterially infused prostacyclin was increased. Reduced basal platelet reactivity was seen in the premenopausal women only. SUMMARY: Background The risk of atherothrombotic events increases after the menopause. Regular physical activity has been shown to reduce platelet reactivity in younger women, but it is unknown how regular exercise affects platelet function after the menopause. Objectives To examine the effects of regular aerobic exercise in late premenopausal and recent postmenopausal women by testing basal platelet reactivity and platelet sensitivity to prostacyclin and nitric oxide. Methods Twenty-five sedentary, but healthy, late premenopausal and 24 matched recently postmenopausal women, mean (95% confidence interval) 49.1 (48.2-49.9) and 53.7 (52.5-55.0) years old, participated in an intervention study: 3-month high-intensity supervised aerobic spinning-cycle training (1 h, * 3/week). Basal platelet reactivity was analyzed in platelet-rich plasma from venous blood as agonist-induced % aggregation. In a subgroup of 13 premenopausal and 14 postmenopausal women, platelet reactivity was tested ex vivo after femoral arterial infusion of prostacyclin, acetylcholine, a cyclooxygenase inhibitor, and after acute one-leg knee extensor exercise. Results Basal platelet reactivity (%aggregation) to TRAP-6 (1 MUm) was higher in the postmenopausal, 59% (50-68), than the premenopausal women, 45% (35-55). Exercise training reduced basal platelet reactivity to collagen (1 MUg mL-1 ) in the premenopausal women only: from 63% (55-71%) to 51% (41-62%). After the training intervention, platelet aggregation was more inhibited by the arterial prostacyclin infusion and the acute exercise in both premenopausal and postmenopausal women. Conclusions These results highlight previously unknown cardioprotective aspects of regular aerobic exercise in premenopausal and postmenopausal women, improving their regulation of platelet reactivity through an increased platelet sensitivity to prostacyclin, which may counterbalance the increased atherothrombotic risk associated with the menopause. PMID- 29027350 TI - Liposome-encapsulated chemotherapy: Current evidence for its use in companion animals. AB - Cytotoxic drugs encapsulated into liposomes were originally designed to increase the anticancer response, while minimizing off-target adverse effects. The first liposomal chemotherapeutic drug was approved for use in humans more than 20 years ago, and the first publication regarding its use in a canine cancer patient was published shortly thereafter. Regardless, no general application for liposomal cytotoxic drugs has been established in veterinary oncology till now. Due to the popularity of canines as experimental models for pharmacokinetic analyses and toxicity studies, multiple publications exist describing various liposomal drugs in healthy dogs. Also, some evidence for its use in veterinary cancer patients exists, especially in canine lymphoma, canine splenic hemangiosarcoma and feline soft tissue sarcoma, however, the results have not been overwhelming. Reasons for this may be related to inherent issues with the enhanced permeability and retention effect, the tumour phenomenon which liposomal drugs exploit. This effect seems very heterogeneously distributed in the tumour. Also, it is potentially not as ubiquitously occurring as once thought, and it may prove important to select patients for liposomal therapy on an individual, non histology-oriented, basis. Concurrently, new developments with active-release modified liposomes in experimental models and humans will likely be relevant for veterinary patients as well, and holds the potential to improve the therapeutic response. It, however, does not resolve the other challenges that liposomal chemotherapy faces, and more work still needs to be done to determine which veterinary patients may benefit the most from liposomal chemotherapy. PMID- 29027351 TI - Robotic-assisted versus open radical cystectomy in bladder cancer: A meta analysis of four randomized controlled trails. AB - BACKGROUND: Robot-assisted radical cystectomy (RARC) is increasing annually for treatment of bladder cancer. The objective of this meta-analysis was to compare the safety and efficacy of RARC and open radical cystectomy (ORC) for bladder cancer. METHODS: Our meta-analysis searches were conducted using PubMed, Web of Science, and Cochrane Library databases to identify randomized controlled trials (RCT) assessing the two techniques. RESULTS: Four RCT studies were identified, including 239 cases. Our studies indicated that RARC was associated with longer operative time (WMD: 69.69, 95% CI:17.25 to122.12; P= 0.009), lower estimated blood loss (WMD: -299.83, 95% CI:-414.66to -184.99; P<0.00001). The two groups had no significant difference in overall perioperative complications, length of hospital stay, lymph node yield and positive surgical margins. CONCLUSIONS: RARC is mini-invasive alternative to ORC for bladder cancer. The advantage of RARC was reduced estimated blood loss. More studies are needed to compare the two techniques. PMID- 29027352 TI - Impact of spontaneous donor hypothermia on graft outcomes after kidney transplantation. AB - A previous donor intervention trial found that therapeutic hypothermia reduced delayed graft function (DGF) after kidney transplantation. This retrospective cohort study nested in the randomized dopamine trial (ClinicalTrials.gov identifier: NCT000115115) investigates the effects of spontaneous donor hypothermia (core body temperature <36 degrees C) on initial kidney graft function, and evaluates 5-year graft survival. Hypothermia assessed by a singular measurement in the intensive care unit 4-20 hours before procurement was associated with less DGF after kidney transplantation (odds ratio [OR] 0.56, 95% confidence interval [CI] 0.34-0.91). The benefit was greater when need for more than a single posttransplant dialysis session was analyzed (OR 0.48, 95%CI 0.28 0.82). Donor dopamine ameliorated dialysis requirement independently from hypothermia in a temporal relationship with exposure (OR 0.93, 95%CI 0.87-0.98, per hour). A lower core body temperature in the donor was associated with lower serum creatinine levels before procurement, which may reflect lower systemic inflammation and attenuated renal injury from brain death. Despite a considerable effect on DGF, our study failed to demonstrate a graft survival advantage (hazard ratio [HR] 0.83, 95%CI 0.54-1.27), whereas dopamine treatment was associated with improved long-term outcome (HR 0.95, 95%CI 0.91-0.99 per hour). PMID- 29027353 TI - Early predictors of mortality in children with pulmonary complications after haematopoietic stem cell transplantation. AB - PC are a main cause of death following HSCT in children. We aimed to evaluate early predictors of mortality in paediatric recipients with PCs. A retrospective observational study of 35 patients with 49 episodes of PI on chest radiography (of 124 patients) who had undergone HSCT at a tertiary university hospital between January 2011 and December 2012 was performed. During follow-up (median 26.1 months), 15 episodes led to death (30.6%). An aetiologic diagnosis was made by non-invasive tests in 24 episodes (49.0%) and by adding bronchoalveolar lavage and/or lung biopsy in 7 episodes with diagnostic yield (77.8%, P = .001). Thus, a specific diagnosis was obtained in 63.3% of the episodes. Aetiology identification and treatment modification after diagnosis did not decrease mortality (P = .057, P = .481). However, the number of organ dysfunctions at the beginning of PI was higher in the mortality group, compared to the survivor group (1.7 +/- 1.2 vs 0.32 +/- 0.59; P = .001). Hepatic dysfunction (OR, 11.145; 95% CI, 1.23 to 101.29; P = .032) and neutropaenia (OR, 10.558; 95% CI, 1.07 to 104.65; P = .044) were independently associated with risk of mortality. Therefore, hepatic dysfunction and neutropaenia are independent early predictors of mortality in HSCT recipients with PCs. PMID- 29027354 TI - Propensity to match or mismatch patients and therapies? PMID- 29027355 TI - A descriptive analysis of rabies post-exposure prophylaxis data: 2013, Ontario, Canada. AB - By 2013, the number of confirmed rabid animals in Ontario had decreased to unprecedented low numbers, yet the expected decrease in the number of courses of rabies post-exposure prophylaxis (RPEP) administered did not occur consistent with the decrease in animal rabies cases (Figure ). This prompted a review of the reasons that RPEP was administered in Ontario. This study provides a descriptive analysis of the exposure incidents resulting in RPEP administration in Ontario during 2013 using data obtained from the integrated Public Health Information System, a Web-based disease surveillance system. Findings from the study revealed that the number of RPEP courses administered could be reduced, without increased risk of rabies, through the following strategies: (i) Education and resources for public health staff and healthcare providers who assess animal exposures to improve interpretation of guidelines for RPEP administration. (ii) Refinement of guidelines for public health staff and healthcare providers to ensure that they support detailed consideration of the circumstances of the exposure in order to assist with the risk assessment. Guidelines should also support completion of a risk assessment when exposures to skunks, foxes, raccoons and other wild carnivores are provoked by the victim, as opposed to automatically providing RPEP as recommended by current guidelines. (iii) Public education strategies to prevent exposures to animals (e.g., do not touch unattended animals, bat proofing your house, proper removal of bats from the house). (iv) Defining the criteria to declare a jurisdiction rabies-free. (v) Exploring strategies to improve surveillance for rabid animals. PMID- 29027356 TI - Relationship between neighborhood socioeconomic status and venous thromboembolism: results from a population-based study. AB - : Essentials Literature on socioeconomic status (SES) and incidence of venous thromboembolism (VTE) is scarce. We assessed neighborhood SES with VTE risk in a population of over 1.4 million inhabitants. Higher neighborhood SES was associated with lower incidence of VTE. These findings are helpful to inform policy and resource allocation in health systems. SUMMARY: Background The association between socioeconomic status and arterial cardiovascular disease is well established. However, despite its high burden of disability-adjusted life years, little research has been carried out to determine whether socioeconomic status is associated with venous thromboembolism. Objective To determine if neighborhood socioeconomic status is associated with venous thromboembolism in a population-based study from the Netherlands. Methods We identified all patients aged 15 years and older with a first event of venous thromboembolism from inhabitants who lived in the urban districts of The Hague, Leiden and Utrecht in the Netherlands in 2008-2012. Neighborhood socioeconomic status was based on the status score, which combines educational level, income and unemployment on a four digit postal code level. Incidence rate ratios of venous thromboembolism were calculated for different levels of neighborhood socioeconomic status, with adjustments for age and sex. Results A total of 7373 patients with a first venous thromboembolism (median age 61 years; 50% deep vein thrombosis) were identified among more than 1.4 million inhabitants. Higher neighborhood SES was associated with lower incidence of VTE. In the two highest status score groups (i.e. the 95 99th and > 99th percentile), the adjusted incidence rate ratios were 0.91 (95% confidence interval [CI], 0.84-1.00) and 0.80 (95% CI, 0.69-0.93), respectively, compared with the reference status score group (i.e. 30-70th percentile). Conclusions High neighborhood socioeconomic status is associated with a lower risk of first venous thromboembolism. PMID- 29027357 TI - Studies on the aerobic utilization of synthesis gas (syngas) by wild type and recombinant strains of Ralstonia eutropha H16. AB - The biotechnical platform strain Ralstonia eutropha H16 was genetically engineered to express a cox subcluster of the carboxydotrophic Oligotropha carboxidovoransOM5, including (i) the structural genes coxM, -S and -L, coding for an aerobic carbon monoxide dehydrogenase (CODH) and (ii) the genes coxD, -E, F and -G, essential for the maturation of CODH. The coxOc genes expressed under control of the CO2 -inducible promoter PL enabled R. eutropha to oxidize CO to CO2 for the use as carbon source, as demonstrated by 13 CO experiments, but the recombinant strains remained dependent on H2 as external energy supply. Therefore, a synthetic metabolism, which could be described as 'carboxyhydrogenotrophic', was established in R. eutropha. With this extension of the bacterium's substrate range, growth in CO-, H2 - and CO2 -containing artificial synthesis gas atmosphere was enhanced, and poly(3-hydroxybutyrate) synthesis was increased by more than 20%. PMID- 29027358 TI - Assessment of the inferior mesenteric vein diameter as a surrogate marker to evaluate response to neoadjuvant chemoradiotherapy for locally advanced rectal adenocarcinoma. PMID- 29027359 TI - A master manipulator with a remote-center-of-motion kinematic structure for a minimally invasive robotic surgical system. AB - BACKGROUND: In robotic surgical systems, commercial master devices have limitations owing to insufficient workspace and lack of intuitiveness. To overcome these limitations, a remote-center-of-motion (RCM) master manipulator was proposed. METHODS: The feasibility of the proposed RCM structure was evaluated through kinematic analysis using a conventional serial structure. Two performance comparison experiments (peg transfer task and objective transfer task) were conducted for the developed master and Phantom Omni. RESULTS: The kinematic analysis results showed that compared with the serial structure, the proposed RCM structure has better performance in terms of design efficiency (19%) and workspace quality (59.08%). Further, in comparison with Phantom Omni, the developed master significantly increased task efficiency and significantly decreased workload in both experiments. CONCLUSIONS: The comparatively better performance in terms of intuitiveness, design efficiency, and operability of the proposed master for a robotic system for minimally invasive surgery was confirmed through kinematic and experimental analysis. PMID- 29027360 TI - Preparation of hydrophilic blood compatible polypropylene/pluronics F127 films. AB - In order to improve surface hydrophilicity, blood compatibility and cell antiadhesion of polypropylene (PP) film, polypropylene oxide (PPO)-polyethylene oxide-PPO used as macromolecular surface modifier through physical blending. Surface properties of blended PP/Pluronic F127 (PF127) samples were investigated by attenuated total reflection infrared spectroscopy and water contact angle measurements. Results demonstrated that PF127 migrated to the surface. Thus, mechanical properties of blended PP/PF127 samples with the aim of the revealing the effects of the presence of modifier in the bulk were investigated through differential scanning calorimetry, X-ray diffraction, and tensile tests. The biocompatibility and hemocompatibility of modified PP films were evaluated by 3 (4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, platelet rich plasma, and hemolysis tests. These results showed excellent anticell and antiplatelet adhesion which deems the prepared blended films proper biomaterials. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 652-662, 2018. PMID- 29027361 TI - Magnetic molecularly imprinted polymers for recognition and enrichment of polysaccharides from seaweed. AB - New magnetic molecularly imprinted polymers with two templates were fabricated for the recognition of polysaccharides (fucoidan and alginic acid) from seaweed by magnetic solid-phase extraction, and the materials were modified by seven types of deep eutectic solvents. It was found that the deep eutectic solvents magnetic molecularly imprinted polymers showed stronger recognition and higher recoveries for fucoidan and alginic acid than magnetic molecularly imprinted polymers, and the deep eutectic solvents-4-magnetic molecularly imprinted polymers had the best effects. The practical recovery of the two polysaccharides (fucoidan and alginic acid) purified with deep eutectic solvents-4-magnetic molecular imprinted polymers in seaweed under the optimal conditions were 89.87, and 92.0%, respectively, and the actual amounts extracted were 20.6 and 18.7 MUg/g, respectively. To sum up, the developed method proved to be a novel and promising method for the recognition of complex polysaccharide samples from seaweed. PMID- 29027362 TI - Impact of Extraction Methods on the Detectable Protein Complement of Metaproteomic Analyses of Marine Sediments. AB - Metaproteomic analysis targets proteins, the catalytic entities in the habitat, thereby providing direct insights into the metabolic activity of the community studied. A major challenge still remaining for metaproteomics is the effective and comprehensive extraction of proteins from environmental samples, due to their high complexity with respect to organismic diversity and abundance range. Moreover, in certain habitats, the inherent matrix may interfere with protein extraction. In recent years, several studies reported different protein extraction methods for soils known for their complex geochemistry, but only three analyzed marine sediments that generally comprise different though similarly complex geochemistry. In this study, the impact of four different extraction methods was investigated for coastal North Sea and deep sea Pacific Ocean sediments. The extraction methods comprised (i) phenol, (ii) SDS, (iii) a mixture of SDS and phenol, and (iv) urea and thiourea. Prior to extraction, a cell and protein standard (CPS) was added to the sediment samples to trace recovery of proteins from different subcellular locations as well as dissolved BSA. While each extraction method detected distinct peptide complements, SDS-phenol extraction generally achieved highest protein yield and most comprehensive CPS protein identification. Application of two different methods was shown to further improve proteome coverage. PMID- 29027364 TI - A functional polymorphism of the OXTR gene is associated with autistic traits in Caucasian and Asian populations. AB - There is increasing evidence for associations between polymorphisms of the oxytocin receptor (OXTR) gene and autism spectrum disorder, but to date no study has established links with autistic traits in healthy subjects and potential cultural differences. The present research firstly investigated associations between three widely studied OXTR SNPs and autistic and empathic traits (rs53576 (G/A); rs2254298 (G/A); rs2268498 (T/C)) in two independent studies on male and female Caucasian (n = 537) and Chinese students (n = 280). Autistic and empathic traits were measured in all subjects in the two independent groups using the Autism -Spectrum Quotient (AQ) and the Interpersonal Reactivity Index (IRI) respectively, together with their sub-scales. For both sites, genotyping of the OXTR SNPs was conducted on buccal swab samples using a Cobas Z 480 Light Cycler following automated DNA extraction. Associations at the genotype level with autism trait scores were found in Caucasian subjects for rs2268498 only, with TT carriers having the lowest AQ scores compared with those carrying at least one C allele. This finding was independently replicated in the Chinese sample although a smaller proportion carried the C-allele compared with the Caucasian sample. Some minor associations were found between empathy trait scores and the three SNPs but were not consistent between the samples. These findings show for the first time that the rs2268498 SNP localized in the promoter flanking region of the OXTR gene is associated with autistic traits in different ethnic/cultural groups. This provides further support for the role of the OXTR gene in relation to autism. PMID- 29027365 TI - Reply to Akingboye et al. PMID- 29027366 TI - Collaborative research among academia, business, and government. PMID- 29027363 TI - Optimizing separations in online comprehensive two-dimensional liquid chromatography. AB - Online comprehensive two-dimensional liquid chromatography has become an attractive option for the analysis of complex nonvolatile samples found in various fields (e.g. environmental studies, food, life, and polymer sciences). Two-dimensional liquid chromatography complements the highly popular hyphenated systems that combine liquid chromatography with mass spectrometry. Two dimensional liquid chromatography is also applied to the analysis of samples that are not compatible with mass spectrometry (e.g. high-molecular-weight polymers), providing important information on the distribution of the sample components along chemical dimensions (molecular weight, charge, lipophilicity, stereochemistry, etc.). Also, in comparison with conventional one-dimensional liquid chromatography, two-dimensional liquid chromatography provides a greater separation power (peak capacity). Because of the additional selectivity and higher peak capacity, the combination of two-dimensional liquid chromatography with mass spectrometry allows for simpler mixtures of compounds to be introduced in the ion source at any given time, improving quantitative analysis by reducing matrix effects. In this review, we summarize the rationale and principles of two dimensional liquid chromatography experiments, describe advantages and disadvantages of combining different selectivities and discuss strategies to improve the quality of two-dimensional liquid chromatography separations. PMID- 29027367 TI - The parasporal crystals of Bacillus pumilus strain 15.1: a potential virulence factor? AB - Bacillus pumilus strain 15.1 was previously found to cause larval mortality in the Med-fly Ceratitis capitata and was shown to produce crystals in association with the spore. As parasporal crystals are well-known as invertebrate-active toxins in entomopathogenic bacteria such as Bacillus thuringiensis (Cry and Cyt toxins) and Lysinibacillus sphaericus (Bin and Cry toxins), the B. pumilus crystals were characterized. The crystals were composed of a 45 kDa protein that was identified as an oxalate decarboxylase by peptide mass fingerprinting, N terminal sequencing and by comparison with the genome sequence of strain 15.1. Synthesis of crystals by a plasmid-cured derivative of strain 15.1 (produced using a novel curing strategy), demonstrated that the oxalate decarboxylase was encoded chromosomally. Crystals spontaneously solubilized when kept at low temperatures, and the protein produced was resistant to trypsin treatment. The insoluble crystals produced by B. pumilus 15.1 did not show significant toxicity when bioassayed against C. capitata larvae, but once the OxdD protein was solubilized, an increase of toxicity was observed. We also demonstrate that the OxdD present in the crystals has oxalate decarboxylate activity as the formation of formate was detected, which suggests a possible mechanism for B. pumilus 15.1 activity. To our knowledge, the characterization of the B. pumilus crystals as oxalate decarboxylase is the first report of the natural production of parasporal inclusions of an enzyme. PMID- 29027368 TI - Expression of fluorescent proteins in Lactobacillus rhamnosus to study host microbe and microbe-microbe interactions. AB - Probiotic Lactobacillus strains are widely used to benefit human and animal health, although the exact mechanisms behind their interactions with the host and the microbiota are largely unknown. Fluorescent tagging of live probiotic cells is an important tool to unravel their modes of action. In this study, the implementation of different heterologously expressed fluorescent proteins for the labelling of the model probiotic strains Lactobacillus rhamnosusGG (gastrointestinal) and Lactobacillus rhamnosusGR-1 (vaginal) was explored. Heterologous expression of mTagBFP2 and mCherry resulted in long-lasting fluorescence of L. rhamnosusGG and GR-1 cells, using the nisin-controlled expression (NICE) system. These novel fluorescent strains were then used to study in vitro aspects of their microbe-microbe and microbe-host interactions. Lactobacillus rhamnosusGG and L. rhamnosusGR-1 expressing mTagBFP2 and mCherry could be visualized in mixed-species biofilms, where they inhibited biofilm formation by Salmonella Typhimurium-gfpmut3 expressing the green fluorescent protein. Likewise, fluorescent L. rhamnosusGG and L. rhamnosusGR-1 were implemented for the visualization of their adhesion patterns to intestinal epithelial cell cultures. The fluorescent L. rhamnosus strains developed in this study can therefore serve as novel tools for the study of probiotic interactions with their environment. PMID- 29027369 TI - Range of therapeutic prothipendyl and prothipendyl sulfoxide concentrations in clinical blood samples. AB - Due to a lack of reference blood concentrations in the literature, the forensic evaluation of prothipendyl findings in blood samples is difficult. Interpretations with regard to the assessment of blood concentrations as well as an estimation of the ingested prothipendyl amounts were often vague. To describe a concentration range in clinical samples, prothipendyl and prothipendyl sulfoxide concentrations were determined in serum samples of 50 psychiatric patients receiving 40 mg, 80 mg, or 160 mg doses of prothipendyl. The analyses of prothipendyl and prothipendyl sulfoxide were carried out using validated methods of high performance liquid chromatography coupled to triple quadrupole mass spectrometry (LC-QQQ-MS), respectively. 40 mg doses caused average prothipendyl serum concentrations of 18.0 ng/mL (1 hour after intake) and 7.9 ng/mL (10.5 hours after intake), while 80 mg doses caused averages of 42.6 ng/mL and 15.2 ng/mL at the mentioned times of sampling. Irrespective of the given dose, prothipendyl concentrations below 30 ng/mL were observed in 80% of the patient samples taken 1 hour after ingestion as well as in 90% of the samples collected 10.5 hours after administration. Serum concentrations of the Phase I metabolite prothipendyl sulfoxide averaged 4.3 ng/mL (1 hour after intake) and 3.6 ng/mL (10.5 hours after intake). Possible drug-drug interactions regarding absorption and metabolism of prothipendyl are discussed. Results of the herein presented study are useful for the interpretation of analytical prothipendyl findings in forensic toxicology. The utility of the described concentration range is demonstrated by discussing two death cases involving prothipendyl findings. PMID- 29027370 TI - Molecular detection of hepatitis E virus in wild boar population in eastern Romania. AB - In industrialized countries, Hepatitis E is a recognized zoonosis, with wild boar and swine representing the main reservoirs for zoonotic genotype HEV-3 in Europe. Data related to HEV infection in wild boar population in Romania are restricted to serological surveys. Therefore, our main goal was to determine the HEV prevalence in wild boar population and to characterize HEV strains circulating in Romania. Using TaqMan real-time RT-PCR assay, we analyzed the presence of RNA HEV in 45 liver samples and five spleen samples collected from 50 wild boars. Samples were collected during the 2013-2015 hunting seasons. Nine samples of 50 were tested positive for HEV RNA, resulting an overall prevalence of 18%. Phylogenetic analysis revealed that the isolates clustered in different HEV-3 monophyletic groups, depending on the sampling county. This is the first study signalling, based on molecular analysis, the presence of HEV in wild boar population from Romania. Also, in this study, we report the detection of HEV in splenic tissue from wild boar. PMID- 29027371 TI - Differential Proteomic Analysis of Dimethylnitrosamine (DMN)-Induced Liver Fibrosis. AB - Liver fibrosis is a common pathological feature of many chronic liver diseases. To characterize the entire panorama of proteome changes in dimethylnitrosamine (DMN)-induced liver fibrosis, isobaric tags for relative and absolute quantitation (iTRAQ)-based differential proteomic analysis is performed with DMN induced liver fibrosis rats. A total of 4155 confidently identified proteins are found, with 365 proteins showing significant changes (fold changes of >1.5 or < 0.67, p < 0.05). In metabolic activation, proteins assigned to drug metabolism enzymes (e.g., CYP2D1) change, suggesting that the liver protection mechanism is activated to relieve DMN toxicity. In addition, the altered proteins of immune response and oxidative stress may activate hepatic stellate cells. Glucose metabolism disorder in DMN model rats is demonstrated by a decrease in key enzymes (e.g., ACSL1) in fatty acid metabolism, a tricabolic acid cycle-related enzyme (SDH), glycogenolysis enzyme, and gluconeogenesis enzymes (PC, PCKGC) and by an increase in glycolysis enzymes (e.g., HXK1). Meanwhile, alterations in iron and calcium ion homeostasis proteins are observed. Our results also show that mitochondrial dysfunction may be involved in DMN hepatotoxicity. In conclusion, these altered liver proteins in the DMN model and control rats provide data for understanding the functional mechanism of liver fibrosis. PMID- 29027373 TI - To MB/PhD or not to MB/PhD. PMID- 29027372 TI - Full-Genome Sequence of Porcine Circovirus type 3 recovered from serum of sows with stillbirths in Brazil. AB - Two full-genome sequences of porcine circovirus type 3 (PCV3) are reported. The genomes were recovered from pooled serum samples from sows who had just delivered litters with variable numbers of stillbirths. The two circular genomes (PCV3 BR/RS/6 and PCV3-BR/RS/8) are 2,000 nucleotides long and contain two open reading frames (ORFs) oriented in opposite directions that encode the putative capsid (Cap) and replicase (Rep) proteins. The intergenic region contains a stem-loop motif, as reported for other circoviruses. Rolling circle replication motifs and putative helicase domains were identified in the Rep coding region. The degree of overall nucleotide similarity between the genomes reported here and those available at GenBank was higher than 97%. No PCV3 sequence was detected in pooled serum samples from sows which had no stillbirths on the same farms. However, further studies are necessary to confirm the association between PCV3 and the occurrence of stillbirths. PMID- 29027374 TI - Flow cytometric monitoring of bacterioplankton phenotypic diversity predicts high population-specific feeding rates by invasive dreissenid mussels. AB - Species invasion is an important disturbance to ecosystems worldwide, yet knowledge about the impacts of invasive species on bacterial communities remains sparse. Using a novel approach, we simultaneously detected phenotypic and derived taxonomic change in a natural bacterioplankton community when subjected to feeding pressure by quagga mussels, a widespread aquatic invasive species. We detected a significant decrease in diversity within 1 h of feeding and a total diversity loss of 11.6 +/- 4.1% after 3 h. This loss of microbial diversity was caused by the selective removal of high nucleic acid populations (29 +/- 5% after 3 h). We were able to track the community diversity at high temporal resolution by calculating phenotypic diversity estimates from flow cytometry (FCM) data of minute amounts of sample. Through parallel FCM and 16S rRNA gene amplicon sequencing analysis of environments spanning a broad diversity range, we showed that the two approaches resulted in highly correlated diversity measures and captured the same seasonal and lake-specific patterns in community composition. Based on our results, we predict that selective feeding by invasive dreissenid mussels directly impacts the microbial component of the carbon cycle, as it may drive bacterioplankton communities toward less diverse and potentially less productive states. PMID- 29027375 TI - Vibrio vulnificus: new insights into a deadly opportunistic pathogen. AB - Vibrio vulnificus is a Gram-negative aquatic bacterium first isolated by the United States (US) Centers for Disease Control and Prevention (CDC) in 1964. This bacterium is part of the normal microbiota of estuarine waters and occurs in high numbers in molluscan shellfish around the world, particularly in warmer months. Infections in humans are derived from consumption of seafood produce and from water exposure. Vibrio vulnificus is a striking and enigmatic human pathogen, yet many aspects related to its biology, genomics, virulence capabilities and epidemiology remain elusive and poorly understood. This pathogen is responsible for over 95% of seafood-related deaths in the United States, and carries the highest fatality rate of any food-borne pathogen. Indeed, infections associated with this pathogen that progress to primary septicaemia have a similar case fatality rate to category BSL 3 and 4 pathogens, such as anthrax, bubonic plague, Ebola and Marburg fever. Interestingly, V. vulnificus infections disproportionately affect males (~85% of cases) and older patients (> 40 years), especially those with underlying conditions such as liver diseases, diabetes and immune disorders. New insights from molecular studies and comparative genomic approaches have offered tantalising insights into this pathogen. A recent increase and geographical spread in reported infections, in particular wound cases, underlines the growing international importance of V. vulnificus, particularly in the context of coastal warming. We outline and explore here a range of current data gaps regarding this important pathogen, and provide some current thoughts on approaches to elucidate key aspects associated with this bacterium. PMID- 29027376 TI - Adenosine A2A receptor agonist ameliorates EAE and correlates with Th1 cytokine induced blood brain barrier dysfunction via suppression of MLCK signaling pathway. AB - INTRODUCTION: Multiple sclerosis (MS) disease activity is associated with blood brain barrier (BBB) disruption, which is mediated by inflammatory cytokines released by CD4+ lymphocytes. To assess the effects of adenosine A2A receptors on BBB permeability in vitro and in vivo. METHODS: A2A receptor expression was detected by immunostaining in experimental autoimmune encephalomyelitis (EAE) C57BL/6 mice immunized with myelin oligodendrocyte glycoprotein (MOG)35-55 , and human MS brain. F-actin and the tight junction protein Claudin-5 were assessed in endothelial cells treated with an A2A receptor specific agonist (CGS-21680) after Th1 cytokine stimulation. EAE mice were divided into control and CGS-21680 (50 ug/kg, i.p., daily) groups. Disease scores were recorded daily to evaluate neurological impairment. The effects of A2A receptor on inflammation and demyelination were assessed after euthanasia by immunostaining or histology; BBB permeability was measured by sodium fluoride (Na-F) and FITC-dextran amounts. RESULTS: Endothelial A2A receptor was detected in demyelination areas of MS brain samples. In EAE lesions, A2A receptor was expressed in the endothelium in association with immune cell infiltration. Treatment with CGS-21680 counteracted the effects of Th1 cytokines on endothelial cells in vitro, preventing the reduction of tight junction protein expression and stress fiber formation. The effects of A2A receptor activation were correlated with MLCK phosphorylation signaling repression. In EAE, A2A receptor agonist decreased BBB permeability and inhibited EAE neurologic deficiency in mice. CONCLUSIONS: A2A receptor activation at EAE onset helps reduce the effects of Th1 stimulation on BBB permeability, indicating that A2A receptor mediates BBB function in CNS demyelinated disease. PMID- 29027377 TI - Contribution of Extracellular Matrix and Signal Mechanotransduction to Epithelial Cell Damage in Inflammatory Bowel Disease Patients: A Proteomic Study. AB - This study utilizes 2D-DIGE (difference gel etrophoresis), isotope-coded protein labeling and biochemical assays to characterize protein alteration in ulcerative colitis (UC) and Crohn's disease (CD) in human epithelial cell and mucosal biopsies in inflammatory bowel disease (IBD)-affected patients. The aim of this study is to identify the key molecular signatures involved in epithelial cell structure of IBDs. In non-inflamed UC (QUC) keratins, vimentin, and focal adhesion kinase (7) increased, whereas vinculin and de-tyrosinated alpha-tubulin decreased; inflammation (IUC) exacerbated molecular changes, being collagen type VI alpha 1 chain (COL6A1), tenascin-C and vimentin increased. In non-inflamed CD (QCD), tenascin C, de-tyrosinated alpha-tubulin, vinculin, FAK, and Rho associated protein kinase 1 (ROCK1) decreased while vimentin increased. In inflamed CD (ICD), COL6A1, vimentin and integrin alpha 4 increased. In QUC, cell metabolism is characterized by a decrease of the tricarboxylic acid cycle enzymes and a decrease of short/branched chain specific acyl-CoA dehydrogenase, fatty acid synthase, proliferator-activated receptors alpha, and proliferator-activated receptors gamma. In QCD a metabolic rewiring occurs, as suggested by glycerol-3 phosphate dehydrogenase (GPD2), pyruvate dehydrogenase E1 component subunit beta, NADH dehydrogenase [ubiquinone] iron-sulfur protein 3, and 4 trimethylaminobutyraldehyde dehydrogenase increment, while dihydrolipoyl dehydrogenase decreased. Macroautophagy is activated in QUC and IUC, with increased levels of p62, HSC70, major vault protein, myosin heavy chain 9, whereas it is blunted in QCD and ICD. The differing pattern of extracellular matrix, cytoskeletal derangements, cellular metabolism, and autophagy in UC and CD may contribute to the pathophysiological understanding of these disorders and serve as diagnostic markers in IBD patients. PMID- 29027378 TI - Why is African swine fever still present in Sardinia? AB - African swine fever (ASF) is an infectious disease of swine that has been present in Sardinia since 1978. Soon after introduction of the disease, several control and eradication programmes were established with limited success. Some researchers attributed the persistence of the disease in central and eastern areas to certain socio-economic factors, the existence of some local and traditional farming practices (i.e., unregistered free-ranging pigs known as brado animals) and the high density of wild boar in the region. In the past, scarcity of swine data in Sardinia complicated the evaluation and study of ASF on the island. More complete, accurate and reliable information on pig farms has become available as a result of the most recent eradication programmes. Here, we perform statistical modelling based on these data and the known distribution of domestic pig and wild boar to identify the main risk factors that have caused ASF persistence in Sardinia. Our results categorized, identified and quantified nine significant risk factors, six of which have not been previously described. The most significant factors were the number of medium-sized farms, the presence of brado animals and the combination of estimated wild boar density and mean altitude above sea level. Based on these factors, we identified regions in eastern and central Sardinia to be at greatest risk of ASF persistence; these regions are also where the disease has traditionally been endemic. Based on these risk factors, we propose specific control measures aimed at mitigating such risks and eradicating ASF from the island. PMID- 29027379 TI - Impact of omalizumab in children from a middle-income country with severe therapy resistant asthma: A real-life study. AB - BACKGROUND: Severe asthma in children is a global health problem. Severe therapy resistant asthma (STRA) in children is a major clinical challenge due to persistent symptoms despite high doses of corticosteroids and results in high public health costs. Omalizumab (anti-IgE monoclonal antibody) has been described as an effective add-on therapy in these patients. The characteristics of children with STRA from low- and middle-income countries have scarcely been reported, and no real-life study has been published on the effects of omalizumab in this group of patients. The aim of our study is to report the first clinical real-life experiences with omalizumab in Brazilian children with STRA. METHODS: Children (6 18 years old) from a referral center who were diagnosed with STRA were included in this retrospective study based on our clinical databases. The included children had undergone at least 6 months of omalizumab treatment and fulfilled the following initial criteria: 1) >6 years old; 2) a positive skin-prick test for at least one aeroallergen; and 3) a serum total IgE level between 30 and 1500 IU/mL. Clinical and lung function variables were analyzed before and after treatment. RESULTS: Fourteen children (mean age: 11.9 years; percentage female: 72%) were included in this study. Omalizumab treatment significantly increased control of the disease according to a standardized questionnaire administered at every visit (P < 0.0001), ceased hospitalizations in 70% (P = 0.02) of patients, and allowed 8/9 (89%) patients to be weaned off oral steroids (P = 0.004). CONCLUSIONS: In this retrospective report, the use of omalizumab in Brazilian children with STRA significantly improved disease control, decreased hospitalizations, and allowed suspension of continuous oral corticosteroids. PMID- 29027380 TI - Different expression about induced sputum cell sorting in the two main types of chronic obstructive pulmonary disease. AB - BACKGROUND: The difference in expression of sputum cells types between the two main types of chronic obstructive pulmonary disease (COPD) is largely unknown. This study aims to investigate the difference and then wants to depend on sputum cells sorting to direct the treatment of COPD. METHODS: A total of 218 patients with stable COPD (FEV1 < 80%) were selected. Stable COPD patients (n = 218) were classified as eosinophilic (A phenotype) or noneosinophilic (B phenotype); sometimes, the subjects were separated into cough group (C phenotype) and dyspnea group (D phenotype). Cross-sectional analysis was conducted comparing demographics and clinical characteristics. Receiver-operating characteristic curve was used to assess predictive ability of sputum eosinophils for D phenotype. RESULTS: The A phenotype showed a higher correlation with the patients complaining of presenting with dyspnea on exertion, the dyspnea group (D phenotype). The B phenotype showed a higher prevalence of those who cough and product sputum, this was cough group (C phenotype). Sputum eosinophil and macrophages counts were significantly higher in patients with dyspnea (n = 95) compared to those with cough (P < .05), and neutrophils were significantly lower in patients with dyspnea (n = 95) compared to those with cough (P < .05). Percentage sputum eosinophil count was predictive of dyspnea (D phenotype) COPD with area under curve (AUC) of 0.831 (95% confidence interval (CI) 0.77-0.89; P <= .001). Neutrophils were also predictive of dyspnea (D phenotype) COPD with AUC of 0.276 (95% CI 0.204-0.347; P <= .001). CONCLUSION: These findings suggest that the morphological phenotypes of COPD show several clinical characteristics and different sputum cell sorting. PMID- 29027381 TI - Evaluation of a new energy device for parenchymal transection in laparoscopic liver resection. AB - INTRODUCTION: THUNDERBEAT (TB) is a novel device that uses both ultrasonic and advanced bipolar energies for hemostasis. Several recent human studies have proved the safety and efficacy of TB in different surgical procedures, but there have been no similar studies about its efficacy in hepatic parenchymal transection. Therefore, the aim of the study was to assess the safety and efficacy of the TB device in laparoscopic liver resection. METHODS: This retrospective study compared TB and ultrasonic Harmonic devices in 80 patients who underwent laparoscopic liver resection from 2010 to 2016 in our institution. To reduce the selection bias, the two groups were matched in a 1-to-2 ratio on the basis of propensity scores. RESULTS: There were no differences in the preoperative patient characteristics between the two groups. The extent of liver resection was comparable between the groups. Although the Harmonic group's intraoperative blood loss and operative time were less than that of the TB group, the differences were not statistically significant (P = 0.08, P = 0.32, respectively). Postoperative complications, mortality within 90 days, and hospital stay were comparable between the two groups. CONCLUSION: TB is as safe and effective for parenchymal transection in laparoscopic hepatectomy as ultrasonic devices, but it is not a superior alternative. PMID- 29027382 TI - Antibiotic resistance in the most unlikeliest of places. PMID- 29027384 TI - Survey for Correlation between Biofilm Formation and Virulence Determinants in a Collection of Pathogenic and Fecal Enterococcus faecalis Isolates. AB - BACKGROUND: Enterococcus faecalis is an opportunistic pathogen that causes most of the enterococcal infections. Among the different factors implicated in the pathogenesis of these organisms, biofilm formation and antibiotic resistance are the most important. The ability for biofilm formation has been attributed to the presence of some virulence genes. However, no definite correlation has been found. This study aimed to detect biofilm formation and antibiotic resistance patterns in E. faecalis isolates collected from clinical and fecal samples, and to investigate possible correlation between some virulence genes (esp, cyl, gelE) and biofilm formation. MATERIALS AND METHODS: A collection of 123 E. faecalis isolates were investigated for antibiotic resistance and production of hemolysin, gelatinase, and biofilm using phenotypic methods. The esp, gelE and cyl genes were detected using polymerase chain reaction. RESULTS: Thirty-eight pathogenic isolates (37%) were positive for biofilm formation. Additionally, the gelE, esp, and cyl genes were detected in 74 (71.8%), 79 (76.7%) and 42 (40.8%) isolates, respectively. In the fecal samples, 18 (90%) isolates were biofilm producers and 11 (55%), 17 (85%) and 8 (40%) isolates were positive for gelE, esp, and cyl, respectively. There were significant differences in biofilm production between pathogenic and fecal isolates (P <0.001). Multidrug resistance (MDR) was found among 32% (n = 33) and 15% (n = 3) of the clinical and fecal isolates, respectively. However, no significant difference was seen between MDR and biofilm formation. Five pathogenic and two fecal isolates were negative for all investigated genes while they were they were biofilm producers. In contrast, 22 pathogenic isolates and 1 fecal isolate were positive for the tested genes, but did not form any biofilm. No significant differences were observed between biofilm formation and the presence of the esp, gelE and cyl genes in the pathogenic and fecal isolates (P >0.05). CONCLUSION: The presence of the esp, gelE and cyl genes might not be determining factors for biofilm formation in enterococci and other mechanisms might be involved in this process. PMID- 29027385 TI - Antimicrobial Susceptibilities of Enterobacteriaceae in Community-Acquired Urinary Tract Infections during a 5-year Period: A Single Hospital Study in Korea. AB - BACKGROUND: Through investigating antimicrobial susceptibility patterns of Enterobacteriaceae in community-acquired urinary tract infection (CA-UTI), we provide basic evidence for the use of empirical antibiotics in CA-UTI. MATERIALS AND METHODS: We retrospectively reviewed the medical records of patients over the age of 19 years who visited a hospital in Seoul between January 2012 and December 2016 for a CA-UTI. Urine cultures were used to identify causative organisms. We investigated extended-spectrum beta-lactamase (ESBL) production and the antimicrobial susceptibility of Enterobactereiaceae. We evaluated recommended empirical antibiotics numerically by calculating the syndrome-specific likelihood of inadequate therapy (LIT) for the last 2 years (interpretation of the LIT A value: 1 out of A people is likely to receive inadequate empirical antibiotics). RESULTS: Urine cultures were performed in 1,605 out of 2,208 patients who were diagnosed with CA-UTI, and causative pathogens were identified in 1,134 (70.7%) cases. There were 998 (88.0%) cases of Enterobacteriaceae and Escherichia coli was the most common pathogen, accounting for 80.3% of cases (911 cases). The overall resistance rates to trimethoprim-sulfamethoxazole, fluoroquinolones, and cefotaxime were 31.7%, 23.2%, and 13.5%, respectively. There were 128 (10.8%) cases of ESBL-producing Entererobacteriaceae with an increasing but non significant trend (P = 0.255). The LIT for CA-UTI in the past two years was highest for ertapenem and imipenem. Fluoroquinolones ranked 11th, with a LIT of 8.2, and cefotaxime ranked higher, at 10.5. In ESBL-producing Enterobacteriaceae, except for carbapenems, amikacin and piperacillin-tazobactam showed the highest susceptibility rates at 99.2% and 94.3%, respectively. CONCLUSION: Empiric treatment with fluoroquinolones in CA-UTI should be carefully considered, given the high resistance rate. The proportion of ESBL-producing Entererobacteriaceae in CA-UTI has increased to a high level in Korea. Amikacin and piperacillin tazobactam could be considered for empiric treatment in patients at risk for ESBL producing Entererobacteriaceae when considering alternatives to carbapenems. PMID- 29027383 TI - Immunological Prediction of Cytomegalovirus (CMV) Replication Risk in Solid Organ Transplantation Recipients: Approaches for Regulating the Targeted Anti-CMV Prevention Strategies. AB - The current cytomegalovirus (CMV) prevention strategies in solid organ transplantation (SOT) recipients have contributed towards overcoming the detrimental effects caused by CMV lytic infection, and improving the long-term success rate of graft survival. Although the quantification of CMV in peripheral blood is the standard method, and an excellent end-point for diagnosing CMV replication and modulating the anti-CMV prevention strategies in SOT recipients, a novel biomarker mimicking the CMV control mechanism is required. CMV-specific immune monitoring can be employed as a basic tool predicting CMV infection or disease after SOT, since uncontrolled CMV replication mostly originates from the impairment of immune responses against CMV under immunosuppressive conditions in SOT recipients. Several studies conducted during the past few decades have indicated the possibility of measuring the CMV-specific cell-mediated immune response in clinical situations. Among several analytical assays, the most advancing standardized tool is the QuantiFERON(r)-CMV assay. The T-Track(r) CMV kit that uses the standardized enzyme-linked immunospot assay is also widely employed. In addition to these assays, immunophenotyping and intracellular cytokine analysis using flow cytometry (with fluorescence-labeled monoclonal antibodies or peptide-major histocompatibility complex multimers) needs to be adequately standardized and validated for potential clinical applications. PMID- 29027386 TI - The Prevalence and Risk Factors of Renal Insufficiency among Korean HIV-Infected Patients: The Korea HIV/AIDS Cohort Study. AB - BACKGROUND: Renal disease is one of the leading causes of morbidity and mortality among people infected with human immunodeficiency virus (HIV). However, there are very few published studies about renal insufficiency in HIV-infected persons in Asia, especially in South Korea. MATERIALS AND METHODS: A cross-sectional study was performed to investigate the prevalence and risk factors of renal insufficiency, defined as <60 mL/min/1.73 m2, in subjects in the Korea HIV/AIDS Cohort Study enrolled from 19 institutions between December 2006 and July 2013. Data at entry into the cohort were analyzed. RESULTS: Of 454 enrolled subjects, 24 (5.3%) showed renal insufficiency at entry into the cohort. The mean age of patients in the renal insufficiency group was 5.28 years and the majority were male subjects (91.7%). All the patients were receiving antiretroviral agents, mostly protease inhibitor-based regimens (76.4%), for an average of 19 months. In univariate analysis, older age (P = 0.002), diabetes mellitus (DM) (P = 0.0002), unknown route of transmission (P = 0.007), and taking indinavir (P = 0.0022) were associated with renal insufficiency. In multivariable analysis, older age [odds ratio (OR) 1.07, 95% confidence interval (CI) 1.03-1.12, P = 0.002], DM [OR 3.03, 95% CI 1.17-7.82, P = 0.022], unknown route of transmission [OR 6.15, 95% CI 1.77 21.33, P = 0.004], and taking indinavir [OR 3.07, 95% CI 1.17-8.05, P = 0.023] were independent risk factors of renal insufficiency. CONCLUSION: The prevalence of renal insufficiency in HIV-infected subjects in this study was relatively low, similar to that in other countries. Aging, DM, and taking indinavir were significantly associated with decreased glomerular filtration rate. Furthermore, unknown route of transmission was an independent risk factor, which was interpreted as a reflection of patient compliance. Further studies on the incidence and risk factors of renal insufficiency during HIV infection using follow-up cohort data are necessary. PMID- 29027387 TI - Safety and Efficacy of Ziagen (Abacavir Sulfate) in HIV-Infected Korean Patients. AB - BACKGROUND: Abacavir is a widely-used nucleoside reverse transcriptase inhibitor for the treatment of human immunodeficiency virus (HIV) infection. Mandatory postmarketing surveillance was conducted in Korea to monitor the safety and evaluate the effectiveness of Ziagen(r) (abacavir sulfate 300 mg; ViiV Healthcare, Middlesex, UK). MATERIALS AND METHODS: An open-label, multi-center, non-interventional postmarketing surveillance study was conducted from June 2010 to June 2016 to monitor the safety and effectiveness of Ziagen across 12 hospitals in Korea. Subjects older than 18 years taking Ziagen according to prescribing information were enrolled. The primary outcome was defined as the occurrence of any adverse events after Ziagen administration. Secondary outcomes included the occurrence of adverse drug reactions, occurrence of serious adverse events, and effectiveness of Ziagen administration. RESULTS: A total of 669 patients were enrolled in this study, with a total observation period of 1047.8 person-years. Of these, 90.7% of patients were male. The mean age of patients was 45.8+/-11.9 years. One-hundred ninety-six (29.3%) patients reported 315 adverse events, and four patients reported seven serious adverse events, without any fatal events. There was one potential case of an abacavir hypersensitivity reaction. Among the 97 adverse drug reactions that were reported from 75 patients, the most frequent adverse drug reactions included diarrhea (12 events), dyspepsia (10 events), and rash (9 events). No ischemic heart disease was observed. In the effectiveness analysis, 91% of patients achieved HIV-1 RNA under 50 copies/mL after 24 months of observation with abacavir administration. CONCLUSION: Our data showed the safety and effectiveness of Ziagen in a real world setting. During the study period, Ziagen was well-tolerated, with one incident of a clinically suspected abacavir hypersensitivity reaction. The postmarketing surveillance of Ziagen did not highlight any new safety information. These data may be helpful in understanding abacavir and the HIV treatment practices in Korea. PMID- 29027388 TI - Causes of HIV Drug Non-Adherence in Korea: Korea HIV/AIDS Cohort Study, 2006 2015. AB - We aimed to determine the initial adherence of HIV cohort patients to ART (antiretroviral therapy), and reasons for non-adherence. Patients who received ART at the time of enrollment in the Korea HIV/AIDS Cohort were included in this study. Treatment adherence was determined at the baseline interview by self reported questionnaire. Eight-hundred thirty two HIV-infected patients received ART. Of these, 253 (30.4%) patients skipped ART more than once a month. The most common reason of skipping medication was "simply forgot" (60.4%). PMID- 29027390 TI - Renal Disease in Persons Infected with Human Immunodeficiency Virus in Korea. PMID- 29027389 TI - Biofilm Formation and Antimicrobial Resistance in Enterococcus. PMID- 29027391 TI - Regional Experience of Abacavir: Valuable but Still has Unanswered Question. PMID- 29027392 TI - Summary of Guidelines for the Use of Pre-Exposure Prophylaxis for HIV in Korea. AB - There are several guidelines for the use of pre-exposure prophylaxis (PrEP) for human immunodeficiency virus (HIV) which are used in other countries. However, the implementation of such guidelines in each country should be modified according to the country's clinical and epidemiological situation. Therefore, The Korean Society for AIDS founded a committee in 2016 to develop guidelines for the use of PrEP for HIV that are optimal for Korea's clinical and epidemiological situation. These guidelines aim to provide comprehensive information for PrEP implementation in Korea. The recommendations contain important information for physicians working to prevent HIV infection in actual clinical fields. The committee will regularly review and revise the guidelines based on changes in PrEP administration and HIV prevention practices. PMID- 29027393 TI - Down-regulated serum microRNA-101 is associated with aggressive progression and poor prognosis of cervical cancer. AB - OBJECTIVE: MicroRNAs (miRNAs) play a vital role in pathogenesis and progression of many cancers, including cervical cancer. However, importance of serum level of miR-101 in cervical cancer has rarely been studied. In the present study, clinical significance and prognostic value of serum miR-101 for cervical cancer was investigated. METHODS: Association between miR-101 level in cervical cancer tissues and prognosis of patients was analyzed by using data retrieved from The Cancer Genome Atlas (TCGA) database, which was followed with our clinical study in which miR-101 serum level comparison between cervical cancer patients and healthy controls was conducted by real-time quantitative polymerase chain reaction (PCR). RESULTS: TCGA database demonstrated that miR-101 was down regulated in cervical cancer tissues compared with normal cervical tissues, and univariate Cox regression analysis indicated that decreased miR-101 expression was a highly significant negative risk factor. Similar trend was found in the serum miR-101. Serum level of miR-101 was associated with International Federation of Gynecology and Obstetrics (FIGO) stage (p=0.003), lymph node metastasis (p=0.001), and serum squamous cell carcinoma antigen (SCC-Ag) level >4 (p=0.007). The overall survival time of cervical cancer patients with a higher level of serum miR-101 was significantly longer than that of patients with a lower level of serum miR-101. Moreover, multivariate Cox regression analysis indicated that the down-regulated serum level of miR-101 was an independent predictor for the unfavorable prognosis of cervical cancer. CONCLUSION: Serum level of miR-101 is closely associated with metastasis and prognosis of cervical cancer; and, hence could be a potential biomarker and prognostic predictor for cervical cancer. PMID- 29027394 TI - Assessing the effect of guideline introduction on clinical practice and outcome in patients with endometrial cancer in Japan: a project of the Japan Society of Gynecologic Oncology (JSGO) guideline evaluation committee. AB - OBJECTIVE: The Japan Society of Gynecologic Oncology (JSGO) published the first practice guideline for endometrial cancer in 2006. The JSGO guideline evaluation committee assessed the effect of this guideline introduction on clinical practice and patient outcome using data provided by the Japan Society of Obstetrics and Gynecology (JSOG) cancer registration system. METHODS: Data of patients with endometrial cancer registered between 2000 and 2012 were analyzed, and epidemiological and clinical trends were assessed. The influence of guideline introduction on survival was determined by analyzing data of patients registered between 2004 and 2009 using competing risk model. RESULTS: In total, 65,241 cases of endometrial cancer were registered. Total number of patients registered each year increased about 3 times in the analyzed period, and the proportion of older patients with type II endometrial cancer rapidly increased. The frequency of lymphadenectomy had decreased not only among the low-recurrence risk group but also among the intermediate- or high-recurrence risk group. Adjuvant therapy was integrated into chemotherapy (p<0.001). Overall survival did not significantly differ before and after the guideline introduction (hazard ratio [HR]=0.891; p=0.160). Additional analyses revealed patients receiving adjuvant chemotherapy showed better prognosis than those receiving adjuvant radiation therapy when limited to stage I or II (HR= 0.598; p=0.003). CONCLUSION: It was suggested that guideline introduction influenced the management of endometrial cancer at several aspects. Better organized information and continuous evaluation are necessary to understand the causal relationship between the guideline and patient outcome. PMID- 29027395 TI - Prognostic value of programmed death-ligand 1 (PD-L1) expression in ovarian clear cell carcinoma. AB - OBJECTIVE: Programmed death-ligand 1 (PD-L1) was expressed in various tumors and antibodies targeting its receptor programmed cell death-1 (PD-1) are emerging cancer therapeutics. This study was designed to evaluate the expression of PD-L1 and its correlation with clinicopathologic features and clinical outcomes in ovarian clear cell carcinoma (OCCC). METHODS: The PD-L1 expression was measured by tissue-microarray-based immunohistochemistry from 122 eligible patients diagnosed with OCCC. The associations of clinicopathologic features with progression-free survival (PFS) and overall survival (OS) were analyzed by Kaplan Meier method and multivariate analysis was further performed by Cox regression model. RESULTS: Overall, high PD-L1 expression (PD-L1(high)) was observed in 44.7% (55/123) of OCCC patients, and was strongly associated with advanced stages (p=0.020), positive ascitic fluid (p=0.016), platinum-resistant (PR) disease (p=0.045), and recurrence (p=0.038). Moreover, patients with PD-L1(high) were associated with poorer OS (hazard ratio [HR]=2.877; p=0.001) and PFS (HR=1.843; p=0.021) than those with low PD-L1 expression (PD-L1(low)). In subgroup analysis, PD-L1(high) patients experienced a poorer PFS (HR=1.926; p=0.044) and OS (HR=2.492; p=0.021) than PD-L1(low) cases among advanced stages (III-IV), but this difference was not observed in stage I-II patients. Meanwhile, PD-L1(high) was associated with poorer prognosis than PD-L1(low) in PR patients (OS, HR=2.253; p=0.037; PFS, HR=1.448; p=0.233). Multivariate analysis revealed that PD-L1(high) and advanced stages (III-IV) were adverse independent prognosticators for both PFS (HR(PD-L1)=2.0; p(PD-L1)=0.038; HR(stage)=10.2; p(stage)<0.001) and OS (HR(PD-L1)=3.0; p(PD-L1)=0.011; HR(stage)=14.3; p(stage)<0.001). CONCLUSION: PD-L1(high) might serve as a risk factor for PFS and OS in patients with OCCC. It is possible that immunotherapy targeting PD-L1 pathway could be used in OCCC. PMID- 29027396 TI - Comparison of three different risk-stratification models for predicting lymph node involvement in endometrioid endometrial cancer clinically confined to the uterus. AB - OBJECTIVE: To compare the clinical validity of the Gynecologic Oncology Group-99 (GOG-99), the Mayo-modified and the European Society for Medical Oncology (ESMO) modified criteria for predicting lymph node (LN) involvement in women with endometrioid endometrial cancer (EC) clinically confined to the uterus. METHODS: A total of 625 consecutive women who underwent comprehensive surgical staging for endometrioid EC clinically confined to the uterus were divided into low- and high risk groups according to the GOG-99, the Mayo-modified, and the ESMO-modified criteria. Lymphovascular space invasion is the cornerstone of risk stratification according to the ESMO-modified criteria. These 3 risk stratification models were compared in terms of predicting LN positivity. RESULTS: Systematic LN dissection was achieved in all patients included in the study. LN involvement was detected in 70 (11.2%) patients. LN involvement was correctly estimated in 51 of 70 LN positive patients according to the GOG-99 criteria (positive likelihood ratio [LR+], 3.3; negative likelihood ratio [LR-], 0.4), 64 of 70 LN-positive patients according to the ESMO-modified criteria (LR+, 2.5; LR-, 0.13) and 69 of the 70 LN positive patients according to the Mayo-modified criteria (LR+, 2.2; LR-, 0.03). The area under curve of the Mayo-modified, the GOG-99 and the ESMO-modified criteria was 0.763, 0.753, and 0.780, respectively. CONCLUSION: The ESMO-modified classification seems to be the risk-stratification model that most accurately predicts LN involvement in endometrioid EC clinically confined to the uterus. However, the Mayo-modified classification may be an alternative model to achieve a precise balance between the desire to prevent over-treatment and the ability to diagnose LN involvement. PMID- 29027397 TI - Comparing treatment outcomes of stage IIIB cervical cancer patients between those with and without lower third of vaginal invasion. AB - OBJECTIVE: To evaluate treatment outcomes between stage IIIB cervical cancer with and without lower third of vaginal invasion (LTI) in terms of response to treatment and overall survival (OS). METHODS: Matching one patient with LTI for 2 patients without LTI who had completed treatment between 1995 and 2012 were conducted by using treatment modalities (radiation therapy [RT] alone vs. concurrent chemoradiation therapy [CCRT]) and tumor histology (squamous cell carcinoma [SCC] vs. adenocarcinoma [ADC]). Treatment outcomes including complete response (CR) rate of RT/CCRT, patterns of treatment failure and survival outcomes were analyzed. RESULTS: Of 216 stage IIIB cervical cancer patients, 114 of them had no LTI and 72 had LTI. Most of the patients (83.8%) had tumor histology as SCC. The CR rates between stage IIIB without LTI and with LTI were 93.8% and 81.9% (p=0.009), and corresponding with disease progression at pelvis accounted for 18.2% and 34.4% (p=0.017), respectively. Distant metastasis was comparable between 2 groups of patients, 28.9% in patients without LTI and 29.5% in patients with LTI (p=0.988). The 2-year and 5-year OS of stage IIIB without LTI were 66.5% and 46.8% compared to stage IIIB with LTI which were 43.1% and 28.9% (p=0.004), respectively. For multivariable analysis, stage IIIB with LTI was only the influential factor on OS with hazard ratio (HR) of 1.63 (p=0.012). CONCLUSION: Stage IIIB cervical cancer patients with LTI have poorer treatment outcomes including response to treatment and survival outcomes than patients in the same stage without LTI. PMID- 29027398 TI - Nutritional status, cachexia, and anorexia in women with peritoneal metastasis and intraperitoneal chemotherapy: a longitudinal analysis. AB - OBJECTIVE: To describe the nutritional status of women with peritoneal metastasis (PM) from recurrent ovarian, fallopian, or peritoneal cancer and to assess longitudinal variations of the cachexia-anorexia syndrome (CAS) during palliative pressurized intraperitoneal aerosol chemotherapy (PIPAC). METHODS: Nutritional assessment included body mass index (BMI), bioelectrical impedance analysis (BIA), and blood chemistry. CAS presence/absence was recorded before and during repeated cycles (1-11) of PIPAC. RESULTS: Eighty-four patients with peritoneal cancer (n=5) or PM from recurrent ovarian (n=77) or fallopian tube (n=2) cancer were included. At baseline, resting metabolism (RM) (1,432+/-172 kcal/day), visceral fat level (7.5+/-3.2), skeletal muscle mass (27.2%+/-4.6%), upper arm circumference (27.9+/-4.6 cm), lower leg circumference (35.1+/-3.9 cm), serum parameters (albumin [3.5+/-0.7 g/dL], total protein [6.3+/-0.9 g/dL], and transferrin [202+/-60 mg/dL]) were below normal limits. C-reactive protein (CRP) (4.3+/-6.8 mg/dL), caliper body fat (35.7%+/-6.3%), and total body fat mass (35.6%+/-8.5%) were above normal limits. Nineteen/84 (23%) patients had CAS at baseline. Deterioration or stabilization/improvement of CAS was observed in 9/55 (16.4%) and 46/55 (83.6%) patients with follow-up data, respectively. Baseline body fat mass, visceral fat level, skeletal muscle mass, caliper body fat, BMI, ascites, Karnofsky index, RM, and CRP, as well as tumor response were not predictive of CAS deterioration. CONCLUSION: Nutritional decline and onset or deterioration of CAS are difficult to predict. Careful measuring and monitoring of nutritional parameters and CAS in all patients seems to be necessary in order to identify those patients in need of enteral/parenteral nutrition support. PMID- 29027399 TI - Early-stage node negative cervical adenocarcinoma and squamous cell carcinoma show similar survival outcomes after hysterectomy: a population-based study. AB - OBJECTIVE: To investigate the clinicopathological features and outcomes between node-negative, early-stage cervical squamous cell carcinoma (SCC) and adenocarcinoma (AC) after hysterectomy. METHODS: Patients diagnosed with International Federation of Gynecology and Obstetrics (FIGO) stages I-IIA cervical SCC and AC between 1988 and 2013 were retrospectively reviewed using the Surveillance, Epidemiology, and End Results database. We used propensity score matching to balance patient baseline characteristics. Univariate and multivariate Cox regression analyses were used for prognostic analyses of cause-specific survival (CSS) and overall survival (OS). RESULTS: A total of 9,858 patients were identified, comprising 6,117 patients (62.1%) and 3,741 (37.9%) patients with cervical SCC and AC, respectively. Compared with cervical SCC, cervical AC cases were more likely to be younger, diagnosed after 2000, white, and have well differentiated and FIGO stage IB1 disease. For SCC and AC, the 10-year CSS rates were 93.4% and 94.7%, respectively (p=0.011), and the 10-year OS rates were 89.6% and 92.2%, respectively (p<0.001). Multivariate analysis revealed that age, ethnicity, tumor grade, and FIGO stage were independent prognostic factors of CSS and OS, but that histologic subtype was not associated with CSS and OS. In the propensity score-matched patient population, univariate and multivariate analyses also showed that histologic subtype was not associated with survival outcomes. CONCLUSION: Cervical AC has equivalent survival to cervical SCC in node-negative, early-stage disease after hysterectomy and lymphadenectomy. PMID- 29027400 TI - Surgical and oncologic outcomes after robotic radical hysterectomy as compared to open radical hysterectomy in the treatment of early cervical cancer. AB - OBJECTIVE: The use of robotic radical hysterectomy has greatly increased in the treatment of early stage cervical cancer. We sought to compare surgical and oncologic outcomes of women undergoing robotic radical hysterectomy compared to open radical hysterectomy. METHODS: The clinic-pathologic, treatment, and recurrence data were abstracted through an Institutional Review Board-approved protocol at 2 separate large tertiary care centers in Seattle, Swedish Medical Center and the University of Washington. Data were collected from 2001-2012. Comparisons between the robotic and open cohorts were made for complications, recurrence, progression-free survival (PFS), and overall survival (OS). RESULTS: In the study period, 109 robotic radical hysterectomies were performed. These were compared to 202 open radical hysterectomies. The groups were comparable in terms of age and body mass index (BMI). Length of stay (LOS) was considerably shorter in the robotic group (42.7 vs. 112.6 hours, p<0.001) as was estimated blood loss (EBL; 105.9 vs. 482.6 mL, p<0.001). There were more complications in the open radical hysterectomy group, 23.4% vs. 9.2% in the robotic group (p=0.002). The recurrence rate was comparable between the groups (10.1% vs. 10.4%, p=0.730). In multivariate adjusted analysis, robotic surgery was not a statistically significant predictor of PFS (p=0.230) or OS (0.85). CONCLUSION: Our study, one of the largest multi-institution cohorts of patients undergoing robotic radical hysterectomy, suggest robotic radical hysterectomy leads to comparable oncologic outcomes in the treatment of early stage cervical cancer with improved short-term surgical outcomes such as decreased LOS and EBL. PMID- 29027402 TI - Impact of vaginal cylinder diameter on outcomes following brachytherapy for early stage endometrial cancer. AB - OBJECTIVE: To examine the outcomes (tolerability, toxicity, and recurrence) of vaginal brachytherapy (VBT) among endometrial cancer (EC) patients treated with small cylinder size. METHODS: Patients with EC who received adjuvant VBT between September 2011 and December 2015 were reviewed. Patients were fitted with the largest vaginal cylinder they could comfortably accommodate, from 2.0-3.0 cm diameter. Small cylinders were defined as size 2.3 cm or less. Patient, tumor, or treatment characteristics were correlated with need for small cylinders. Treatment tolerability, measures of gastrointestinal (GI), genitourinary (GU), and vaginal toxicity, and rates of recurrence were analyzed. RESULTS: Three hundred four patients were included. Small cylinders were used in 51 patients (17%). Normal body mass index (BMI; p<0.001), nulligravidity (p<0.001), and shorter vaginal length (p<0.001) were associated with small cylinder size. There was no acute or late grade 3 toxicity. Rates of acute (grade 1-2) GI, GU, or vaginal symptoms were low (10%, 11%, and 19%, respectively). Small cylinder size was associated with increased likelihood of reporting acute GI (p<0.05) but not GU or vaginal symptoms. Small cylinder size was associated with higher risk of grade 1-2 vaginal stenosis (odds ratio [OR]=4.7; 95% confidence interval [CI]=1.5 14.7; p=0.007). There was no association between cylinder size and recurrence rate (p=0.55). CONCLUSION: VBT is generally very well tolerated, however, patients fitted with smaller cylinders (commonly nulligravid and low BMI) may have increased side effects. Further study to improve the dosimetry of VBT for patients requiring small cylinders may be worthwhile. PMID- 29027401 TI - Identification of DNA methylation associated gene signatures in endometrial cancer via integrated analysis of DNA methylation and gene expression systematically. AB - OBJECTIVE: Endometrial cancer (EC) is a common gynecologic cancer worldwide. However, the pathogenesis of EC has not been epigenetically elucidated. Here, this study aims to describe the DNA methylation profile and identify favorable gene signatures highly associated with aberrant DNA methylation changes in EC. METHODS: The data regarding DNA methylation and gene expression were downloaded from The Cancer Genome Atlas (TCGA) database. Differentially methylated CpG sites (DMCs), differentially methylated regions (DMRs), and differentially expressed genes (DEGs) were identified, and the relationship between the 2 omics was further analyzed. In addition, weighted CpG site co-methylation network (WCCN) was constructed followed by an integrated analysis of DNA methylation and gene expression data. RESULTS: Four hundred thirty-one tumor tissues and 46 tissues adjacent tumor of EC patients were analyzed. One thousand one hundred thirty-five DMCs (merging to 10 DMRs), and 1,488 DEGs were obtained between tumor and normal groups, respectively. One hundred forty-eight DMCs-DEGs correlated pairs and 13 regional DMCs-DEGs pairs were obtained. Interestingly, we found that some hub genes in 2 modules among 8 modules of WCCN analysis were down-regulated in tumor samples. Furthermore, protocadherins (PCDHs) clusters, DDP6, TNXB, and ZNF154 were identified as novel deregulated genes with altered methylation in EC. CONCLUSION: Based on the analysis of DNA methylation in a systematic view, the potential long-range epigenetic silencing (LRES) composed of PCDHs was reported in ECs for the first time. PCDHs clusters, DDP6, and TNXB were firstly found to be associated with tumorigenesis, and may be novel candidate biomarkers for EC. PMID- 29027403 TI - Survival of gynecological cancers in Turkey: where are we at? AB - OBJECTIVE: To investigate the 5-year relative survival rates in gynecological cancers diagnosed and treated in Turkey by year 2009 and to compare the results with developed countries. METHODS: Data of patients diagnosed for ovarian, corpus uteri or cervix uteri cancer at year 2009 are collected from 9 national cancer registry centers. Date of deaths are retracted from governmental Identity Information Sharing System (KPS). In order to calculate relative survival rates, national general population mortality tables are obtained from Turkish Statistical Institute (TurkStat). Hakulinen method is used for computing curves by R program. Data for European, Asian and some developed countries were obtained from official web pages. RESULTS: A total of 1,553 patients are evaluated. Among these, 713 (45.9%) are corpus uteri cancers, while remaining 489 (31.5%) are ovarian and 351 (22.6%) are cervix uteri. Five-year overall relative survival rates are 85%, 50%, and 62% for corpus uteri, ovarian, and cervix uteri, respectively. These figures are between 73%-87% for corpus uteri, 31%-62% for ovarian and 61%-80% for cervix uteri in developed countries. Stage is the most important factor for survival in all cancers. Five-year relative survival rates in corpus uteri cancers are 92%, 66%, and 38% for localized, regional, and distant metastatic disease, respectively. These figures are 77%, 57%, and 29% for ovarian; 80%, 50%, and 22% for cervix uteri. CONCLUSION: This is the first report from Turkey giving national overall relative survival for gynecological cancers from a population based cancer registry system. PMID- 29027404 TI - Transvaginal ultrasound versus magnetic resonance imaging for preoperative assessment of myometrial infiltration in patients with endometrial cancer: a systematic review and meta-analysis. AB - OBJECTIVE: To compare the diagnostic accuracy of transvaginal ultrasound (TVS) and magnetic resonance imaging (MRI) for detecting myometrial infiltration (MI) in endometrial carcinoma. METHODS: An extensive search of papers comparing TVS and MRI in assessing MI in endometrial cancer was performed in MEDLINE (PubMed), Web of Science, and Cochrane Database from January 1989 to January 2017. Quality was assessed using Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) tool. RESULTS: Our extended search identified 747 citations but after exclusions we finally included in the meta-analysis 8 articles. The risk of bias for most studies was low for most 4 domains assessed in QUADAS-2. Overall, pooled estimated sensitivity and specificity for diagnosing deep MI were 75% (95% confidence interval [CI]=67%-82%) and 82% (95% CI=75%-93%) for TVS, and 83% (95% CI=76%-89%) and 82% (95% CI=72%-89%) for MRI, respectively. No statistical differences were found when comparing both methods (p=0.314). Heterogeneity was low for sensitivity and high for specificity for TVS and MRI. CONCLUSION: MRI showed a better sensitivity than TVS for detecting deep MI in women with endometrial cancer. However, the difference observed was not statistically significant. PMID- 29027405 TI - Safety of fertility-sparing surgery for stage I ovarian clear cell carcinoma. PMID- 29027406 TI - Comparing prediction models for lymph node metastasis risk in endometrial cancer: the winner may not take it all. PMID- 29027407 TI - Challenges in translation: models to promote translation. AB - We first discuss the main obstacles for clinical translation of biophotonics technologies, in particular, the different valleys of death, after which we present different examples of ways to bridge these gaps, remove the obstacles, and promote clinical translation. PMID- 29027408 TI - Dual-modal cancer detection based on optical pH sensing and Raman spectroscopy. AB - A dual-modal approach using Raman spectroscopy and optical pH sensing was investigated to discriminate between normal and cancerous tissues. Raman spectroscopy has demonstrated the potential for in vivo cancer detection. However, Raman spectroscopy has suffered from strong fluorescence background of biological samples and subtle spectral differences between normal and disease tissues. To overcome those issues, pH sensing is adopted to Raman spectroscopy as a dual-modal approach. Based on the fact that the pH level in cancerous tissues is lower than that in normal tissues due to insufficient vasculature formation, the dual-modal approach combining the chemical information of Raman spectrum and the metabolic information of pH level can improve the specificity of cancer diagnosis. From human breast tissue samples, Raman spectra and pH levels are measured using fiber-optic-based Raman and pH probes, respectively. The pH sensing is based on the dependence of pH level on optical transmission spectrum. Multivariate statistical analysis is performed to evaluate the classification capability of the dual-modal method. The analytical results show that the dual modal method based on Raman spectroscopy and optical pH sensing can improve the performance of cancer classification. PMID- 29027409 TI - [Developing traditional Chinese medicine injection is the need for curing sickness to save patients]. AB - Safety issues of traditional Chinese medicine injections has been heated debate. There are two diametrically opposed views: it should be used reasonable and developed healthily or be forbidden to use. Some people have many misunderstandings and prejudices about the safety of traditional Chinese medicine injections. Compared with western medicine,traditional Chinese medicine has its own particularity. Traditional Chinese medicine has complex components. Its research and clinical application is different from western medicine. Adverse reactions of traditional Chinese medicine injections are related to many factors,such as a large number of irrational use,blind use of traditional Chinese medicine injections and western medicine injections,counterfeit and substandard drugs,incorrect methods of intravenous infusion,toxicity of supplementary materials,drug ingredients. Developing traditional Chinese medicine injection is the need for curing sickness to save patients. The purposeful, targeted, organized and planned systematic research of traditional Chinese medicine injections should be strengthened,especially the safety of traditional Chinese medicine. Strengthen supervision and control of rational drug use.Strengthen the examination and approval,supervision and management of all aspects to ensure the safety of patients. PMID- 29027410 TI - [Quality by design approaches for pharmaceutical development and manufacturing of Chinese medicine]. AB - The pharmaceutical quality was built by design, formed in the manufacturing process and improved during the product's lifecycle. Based on the comprehensive literature review of pharmaceutical quality by design (QbD), the essential ideas and implementation strategies of pharmaceutical QbD were interpreted. Considering the complex nature of Chinese medicine, the "4H" model was innovated and proposed for implementing QbD in pharmaceutical development and industrial manufacture of Chinese medicine product. "4H" corresponds to the acronym of holistic design, holistic information analysis, holistic quality control, and holistic process optimization, which is consistent with the holistic concept of Chinese medicine theory. The holistic design aims at constructing both the quality problem space from the patient requirement and the quality solution space from multidisciplinary knowledge. Holistic information analysis emphasizes understanding the quality pattern of Chinese medicine by integrating and mining multisource data and information at a relatively high level. The batch-to-batch quality consistence and manufacturing system reliability can be realized by comprehensive application of inspective quality control, statistical quality control, predictive quality control and intelligent quality control strategies. Holistic process optimization is to improve the product quality and process capability during the product lifecycle management. The implementation of QbD is useful to eliminate the ecosystem contradictions lying in the pharmaceutical development and manufacturing process of Chinese medicine product, and helps guarantee the cost effectiveness. PMID- 29027411 TI - [Analysis and countermeasure for quality risk in process of traditional Chinese medicine preparations]. AB - Product quality relies on not only testing methods,but also the design and development, production control and product manufacturing all aspects of logistics management. Quality comes from the process control level.Therefore, it is very important to accurately identify the factors that may induce quality risk in the production process and quality control measures correspondingly.This article systematically analyzes the source of the quality risk of all aspects of the production process in traditional Chinese medicine preparation. Discussing ways and methods of quality risk identification of traditional Chinese medicine preparation and providing references for perfecting the whole process quality management of traditional Chinese medicine preparation. PMID- 29027412 TI - [Research advances in secondary development of Chinese patent medicines based on quality by design concept]. AB - Quality by design (QbD) concept is an advanced pharmaceutical quality control concept. The application of QbD concept in the research and development of pharmaceutical processes of traditional Chinese medicines (TCM) mainly contains five parts, including the definition of critical processes and their evaluation criteria, the determination of critical process parameters and critical material attributes, the establishment of quantitative models, the development of design space, as well as the application and continuous improvement of control strategy. In this work, recent research advances in QbD concept implementation methods in the secondary development of Chinese patent medicines were reviewed, and five promising fields of the implementation of QbD concept were pointed out, including the research and development of TCM new drugs and Chinese medicine granules for formulation, modeling of pharmaceutical processes, development of control strategy based on industrial big data, strengthening the research of process amplification rules, and the development of new pharmaceutical equipment.?. PMID- 29027413 TI - [Application of quality by design in granulation process for ginkgo leaf tablet (I): comprehensive characterization of granule properties]. AB - In this paper, the granules intermediate prepared from the wet granulation process of ginkgo leaf tablet were taken as the research object, and then the stackability, homogeneity, flowability, compressibility and stability of granules were characterized by using micromeritics evaluation method. The physical fingerprint of granules were constructed by 16 indexes including bulk density, tapped density, span, width, relative homogeneity index, aspect ratio, Hausner ratio, angle of repose, granule flow time, inter-particle porosity, Carr index, specific surface area, pore volume, pore size distribution, loss on drying and hygroscopicity. Furthermore, compressibility parameters (i.e. index of parameter, index of parametric profile and index of good compression) were employed to analyze the compressibility characteristics of the granules. Two principal components (first principal component representing dimension parameter and second principal component representing morphology parameter), could be extracted from the physical fingerprint by the principal component analysis (PCA). The granules' physical fingerprint is of great importance to evaluate the batch-to-batch quality consistency of Ginkgo biloba granules and analyze the potential impacts of granules' quality attributes on product quality, which can provide guidance for the granules' quality control and process development.?. PMID- 29027414 TI - [Application of quality by design in granulation process for ginkgo leaf tablet (II): identification of critical quality attributes]. AB - Quality by design (QbD) highlights the concept of "begin with the end", which means to thoroughly understand the target product quality first, and then guide pharmaceutical process development and quality control throughout the whole manufacturing process. In this paper, the Ginkgo biloba granules intermediates were taken as the research object, and the requirements of the tensile strength of tablets were treated as the goals to establish the methods for identification of granules' critical quality attributes (CQAs) and establishment of CQAs' limits. Firstly, the orthogonal partial least square (OPLS) model was adopted to build the relationship between the micromeritic properties of 29 batches of granules and the tensile strength of ginkgo leaf tablets, and thereby the potential critical quality attributes (pCQAs) were screened by variable importance in the projection (VIP) indexes. Then, a series of OPLS models were rebuilt by reducing pCQAs variables one by one in view of the rule of VIP values from low to high in sequence. The model performance results demonstrated that calibration and predictive performance of the model had no decreasing trend after variables reduction. In consideration of the results from variables selection as well as the collinearity test and testability of the pCQAs, the median particle size (D50) and the bulk density (Da) were identified as critical quality attributes (CQAs). The design space of CQAs was developed based on a multiple linear regression model established between the CQAs (D50 and Da) and the tensile strength. The control constraints of the CQAs were determined as 170 MUm< D50<500 MUm and 0.30 g*cm-33)-O-alpha-L-rhamnopyranosyl-4, 6-O-di-feruloyl]-beta-D glucopyranoside, named as orobancheoside B. Through the antibacterial activity test, orobancheoside B was proved to have certain antibacterial activity, and be one of the main active components of O. coerulescens. The research result will laid a foundation for the medicinal materials and quality control research. Activity screening, broomrape orobancheoside B has certain antibacterial activity, as one of the main active components of O. coerulescens, and to constantly improve the quality of the medicinal materials laid a foundation. PMID- 29027430 TI - [Virtual screening of anti-angiogenesis flavonoids from Sophora flavescens]. AB - Angiogenesis is a dynamic, multi-step process. It is known that about 70 diseases are related to angiogenesis. Both the experimental and the literature reports showed that Sophora flavescens inhibit angiogenesis significantly, but the material basis and the mechanism of action have not been clear. In this study, molecular docking was used for screening of anti-angiogenesis flavonoids from the roots of S. flavescens. One handred and twenty-six flavonoids selected from S. flavescens were screened in the docking ligand database with six targets(VEGF a,TEK,KDR,Flt1,FGFR1 and FGFR2) as the receptors. In addition, the small-molecule approved drugs of targets from DrugBank database were set as a reference with minimum score of each target's approved drugs as threshold. The LibDock module in Discovery Studio 2.5 (DS2.5) software was applied to screen the compounds. As a result, 37 compounds were screened out that their scores were higher than the minimum score of approved drugs as well as being in the top of 10%. At last the mechanism of flavonoids anti-angiogenesis was preliminarily revealed, which provided a new method for the development of angiogenesis inhibitor drugs. PMID- 29027431 TI - [Determination of three saponins in rhizoma and fibrous root of Trillium tschonoskii and Trillium kamtschaticum]. AB - To compare the differences of main components between in rhizoma and fibrous root of Trillium tschonoskii and T. kamtschaticum, a simple, accurate and reliable high performance liquid chromatography coupled with the charged aerosol detector (HPLC-CAD) method was developed and then successfully applied for simultaneous quantitative analysis of three compounds, including polyphyllin VII (T1),pennogenin 3-O-alpha-L-rhamnopyranosyl-(1->2) [alpha-L-rhamnopyranosyl-(1 >4)]-beta-D-glucopyranoside (T2),polyphyllin VI (T3), in 16 batches of rhizome and 14 batches of fibrous root. The analytes were well separated from other constituents on TSK gel ODS (4.6 mm*250 mm, 5 MUm) with acetonitrile-water (43?57) at a flow rate of 1.0 mL*min-1. The injection volume was 20 MUL. The nitrogen inlet pressure for the CAD system was 35 psi and the nebulizer chamber temperature was 35 C.The method was validated for linearity (r>0.999 0), intra and inter-day precision (0.29%-3.0%), repeatability (0.45%-1.4%), stability (1.9% 2.6%), recovery (100.1%-100.2%, 1.2%-1.8%), limits of detection (0.002 g*L-1), and limits of quantification (0.005 g*L-1).The obtained datasets were processed by principal component analysis (PCA) and it showed that there was almost no difference in rhizoma of T. tschonoskii and T. kamtschaticum from different areas of China. However, the 3 major compounds existed in rhizoma were different from those in fibrous root of T. tschonoskii and T. kamtschaticum. PMID- 29027432 TI - [Simultaneous determination of amino acids and nucleosides of three species in Termitomyces by UFLC-QTRAP-MS-MS]. AB - A comprehensive analytical method based on UFLC-QTRAP-MS-MS was developed for the simultaneous determination of 15 kinds of amino acids and 12 kinds of nucleosides of three species in Termitomyces. The separation was carried out on a Waters XBridge Amide column (2.1 mm*100 mm,3.5 MUm) with gradient elution of mobile phase of 0.2% formic acid in water-0.2% formic acid in acetonitrile at a flow rate of 0.6 mL*min-1, and column temperature was maintained at 30 C. The target compounds were analyzed by the positive ion multiple reaction monitoring (MRM) mode. The principal component analysis(PCA) was made to standardized treatment for the comprehensive evaluation of different species in Termitomyces. The 15 kinds of amino acids and 12 kinds of nucleosides multiple constituents showed good linearity (r>0.997 3) in the range of the tested concentration.The average recoveries ranged from 95.14% to 105.0%,and the relative standard deviations were less than 5.0%. The comprehensive evaluation index obtained with PCA showed that the Termitomyces albuminosus was significantly higher than others in amino acids and in nucleosides, of which the T. aurantiacus was the best. The developed method with good repeatability and accuracy was suitable for the simultaneous determination of multiple functional substances,which provided a new basis for the comprehensive assessment and overall control of the quality of Termitomyces fungi. PMID- 29027433 TI - [Inhibitory mechanisms of timosaponin AIII on proliferation and growth of human glioblastoma cells]. AB - To explore the inhibitory effect of timosaponin AIII on the proliferation of human glioblastoma cell line U87MG and investigate its related mechanism. As compared with the model group, the tumor weight was significantly reduced in timosaponin AIII-treated group. Timosaponin AIIIinhibited the proliferation of U87MG cell line in a dose-dependent manner. It up-regulated the gene and protein expression levels of p21, meanwhile inhibited the protein expression levels of beta-Catenin, Cyclin D1 and Bcl-2. It also inhibited the translocation of beta Catenin into nucleus, suppressed the phosphorylation expression of ERK, but increased the phosphorylation expression of p38 and JNK. Combined use of JNK inhibitor SP600125 and p38 inhibitor SB203580 could decrease p21 and increase beta-Catenin protein expressions. Timosaponin AIII inhibited the proliferation of human glioblastoma cell line U87MG partly by intervening MAPK and Wnt/beta Catenin signal pathways. PMID- 29027434 TI - [Protective effect of notoginsenoside R1 on neuron injury induced by OGD/R through ATF6/Akt signaling pathway]. AB - Notoginsenoside R1(NGR1),a critical compound in traditional herb Panax notoginseng, is a kind of estrogen receptor agonist.It is reported to exhibit anti-apoptotic,anti-oxidative and anti-inflammatory properties activity, so it is widely used for treatment of various diseases.In order to investigate the potential neuroprotective effect of NGR1 in hypoxic-ischemic brain damage(HIBD), primary cortical neurons were used in this study to establish oxygen-glucose deprivation/reoxygenation(OGD/R) injury models. They were treated with NGR1 and estrogen receptor inhibitor ICI-182780 respectively, then the neuronal survival, cell membrane integrity and apoptosis were assessed by MTT assay,lactate dehydrogenase test(LDH) and Hoechst 33342 stain respectively, while the protein expression levels of ATF6alpha,p-Akt,Akt,Bax and Cleaved Caspase-3 were measured by Western blotting. Results indicated that as compared with the blank control group,OGD/R could induce cell injury and apoptosis(P<0.05), reduce relative integrity of cell membrane(P<0.05), decrease protein expression of ATF6alpha,p Akt(P<0.05), and increase protein expression of Bax and Cleaved Caspase-3(P<0.05) in the primary cortical cells. After NGR1 treatment, the expression levels of ATF6alpha,p-Akt were obviously increased, and the expression levels of Bax and Cleaved Caspase-3 and the apoptosis of neuron were decreased(P<0.05). However, these neuroprotective properties of NGR1 against ODG/R-induced cell damage could be blocked by ICI-182780. This finding indicated that NGR1 may protect the primary cortical neurons against OGD/R induced injury,and the mechanism may be associated with accelerating the activation of the ATF6/Akt signaling pathway via estrogen receptors. PMID- 29027435 TI - [Preliminary establishment of integration of Alzheimer's disease and blood stasis syndrome tree shrew model and evaluation of intervention of Panax notoginseng saponins]. AB - To establish the integration of Alzheimer's disease(AD) and blood stasis syndrome tree shrew model. Panax notoginseng saponins (PNS) was used to intervene the model to testify the stability of the model. The level of blood stasis of each group in the tree shrew model was evaluated by analyzing five traditional Chinese medicine(TCM) characterizations, four blood coagulation indexes, plasma nitric oxide (NO) level, plasma superoxide dismutase (SOD) level in each group. Hematoxylin and eosin(HE) staining was used to observe the morphological changes of brain hippocampal neuron cell of each group. Immunohistochemical staining was used to assay the ChAT and SYP levels in brain hippocampus of each group.The blood stasis characterization of the integration of disease and syndrome group was more obvious than the AD group, and that of the drug administration group was lower than that of the integration of disease and syndrome group. Abeta1-42, APP, P-Tau, ChAT and SYP level of AD group were lower than those in the blank group, which were further reduced in the model of integration of disease and syndrome. However, the administration of PNS relieved the reduction, indicating that the AD and blood stasis integration syndrome tree shrew model is stable. PMID- 29027436 TI - [Protective effect of earthworm active ingredients against endoplasmic reticulum stress-induced acute liver injury in mice]. AB - To study the protective effect of earthworm active ingredients(EWAs) against endoplasmic reticulum stress(ERS)-induced acute liver injury in mice. The model of liver injury was induced through intraperitoneal injection of 10%CCl4. Serum glutamic-pyruvic transaminase(ALT), glutamic-oxaloacetic transaminase(AST), superoxide dismutase(SOD) and glutathione peroxidase(GSH-PX) activity and malondialdehyde(MDA) concentration were detected by colorimetric method. Histological examination was performed through hematoxylin-eosin staining and light microscopy, and apoptosis was detected using terminal transferase dUTP nick end labeling. The expressions of ERS related proteins, including glucose regulated protein 78(GRP78), protein kinase R-like ER kinase(PERK), eukaryotic transcription initiation factor 2alpha(eIF2alpha), active transcription factor 4(ATF4) and CCAAT/enhancer binding homologous protein(CHOP), were measured by immunohistochemistry and Western blot. According to the results, compared with the model group,serological indexes in the high, middle and low doses of EWAs were significantly improved (P<0.05 or P<0.01), the extent of liver lesion was decreased and the degree of injury was significantly reduced, and that the liver index and the spleen index of mice were significantly changed(P<0.05 or P<0.01). In liver tissue, the expressions of GRP78 and CHOP were significantly decreased(P<0.05 or P<0.01). The protein expressions of GRP78, CHOP and its upstream signaling pathway PERK-eIF2-ATF4 were significantly decreased in each dose group(P<0.05 or P<0.01). In summary, EWAs has a significant protective effect on ERS-induced acute liver injury, and its mechanism may be correlated with the inhibition of oxidative stress and ERS, and down-regulation of ERS marker protein CHOP expression, andinhibition of apoptosis. PMID- 29027437 TI - [Rhaponticum uniflorum inhibits H2O2-induced apoptosis of liver cells via JNK and NF-kappaB pathways]. AB - To study the inhibitory effect of Rhaponticum uniflorum on apoptosis induced by H2O2 in HepG2 cells. Human HepG2 cells injury models were established by H2O2, then cell survival rate was assayed by MTT method; levels of LDH, ALT, and AST were detected by chemical colorimetric method;SOD activity was detected by xanthine oxidase method; GSH content was detected by dithio-bis-nitrobenzoic acid(DTNB); MDA level was detected by thiobarbituric acid (TBA) method;and the relative activities of Caspase-3, 8 and 9 were measured by Colorimetry. The expression levels of Cleaved Caspase-3(Casp-3), cytochrome(Cyto c), NF-kappaB, ERK, JNK, p38 MAPK, as well as the phospharylated proteins were determined with Western blotting method. The results showed that R. unifloru had no significant effect on cell viabilities of HepG2 cells at the concentrations of 25-400 mg*L-1. However, H2O2decreased the cell viabilities, increased the cellular oxidative stress, and up-regulated the protein expressions of Casp-3, cytoplasmic Cyto c, p JNK and nuclear NF-kappaB. As compared with the model group,R. unifloru could increase the cell viability, reduce LDH, ALT and AST leakage, reduce the MDA formation, increase the SOD and GSH levels,reduce the relative activities of Caspase-3, 8 and 9, down-regulated the protein expressions of Casp-3 and cytoplasmic Cyto c, and down-regulate the p-JNK and nuclear NF-kappaB levels.The results indicated that R. unifloru had the inhibitory effect on apoptosis induced by H2O2in HepG2 cells, and the mechanism maybe associated with inhibiting JNK activation and NF-kappaB nuclear translocation. PMID- 29027438 TI - [Meta-analysis on indirect comparison of Erigeron breviscapus injection and Breviscapus injection in treatment of acute ischemic stroke]. AB - Erigeron breviscapus injection(DZXI) and Breviscapus injection(DZSI) are two popular injections in treatment of acute ischemic stroke in China. Both of them are manufactured from a same herbal medicine, E. breviscapus, but DZXI is an herbal extract(mixture) preparation and DZSI is a pure compound injection. This article was aimed to systemically evaluate and compare their efficacy and safety in treatment of acute ischemic stroke. The randomized controlled trials(RCTs) were collected for comparing DZXI and DZSI with Salvia miltiorrhiza injection(FDI) as the medium, and they were compared with indirect Meta analysis(ITC). Thirty-nine RCTs with 4 180 patients were included. Meta-analysis results showed that both DZXI and DZSI had better efficacy than FDI in acute ischemic stroke. In the indirect comparison, DZSI had a higher total efficacy than DZXI, with significantly statistical differences[OR=0.634, 95%CI = (0.432,0.928), P<0.000 01], but there was no significant difference in improvement of neurological deficit [MD=-1.19, 95%CI=(-3.57,1.19), P=0.953]. On the safety aspect, adverse reaction rate of DZXI was 1.14%, mainly including head swelling, fever and chills while DZSI had no significant adverse reactions. The limited evidences in this study showed that Breviscapine injection had higher total efficiency and safety than E. breviscapine injection, but due to the low quality of the included RCTs, these two medicines should be comprehensively compared in further high-quality clinical trials. PMID- 29027439 TI - [Resource investigation about Tibetan medicine Rhodiola kirilowii]. AB - The investigation aims to better understand the resource status of Rhodiola kirilowii, analysis the suitable habitat of wild Rh. kirilowii and protect the wild resources of Rh. Kirilowii, promoting the sustainable utilization of Rh. kirilowii resources. In this paper, we investigated the wild resources of Rh. kirilowii in 16 counties of Sichuan, Qinghai, Gansu and Yunnan by means of investigation and sampling investigation combined with interview. The results showed that the population densities of wild Rh. kirilowii in 4 provinces were very different and the reserve of wild resources decreased gradually in many areas. According to the survey results, the current total reserve of Rh. kirilowii in four provinces was about 1 100 t. The reserve of wild Rh. kirilowii in Sichuan province was the largest. Simultaneously, the Rh. kirilowii had a certain ecological value. We found that a sand control base with planting Rh. kirilowii was set up in Hongyuan County of Sichuan Aba Tibetan and Qiang Autonomous Prefecture. The investigation provides a scientific basis for the development and sustainable utilization of Rh. kirilowii resources. PMID- 29027440 TI - [Analysis on composition principles of Tibetan medicine containing Terminalia chebula by data mining]. AB - This study using traditional Chinese medicine inheritance support software(TCMISS) to analyze the prescription rules of Tibetan medicine containing Terminalia chebula in the Encyclopedia of Chinese Medicine-Tibetan Medicine, Tibetan Medicine Composition Preparation of Modern Research and Clinical Application and Common Interpretation of Tibetan Medicine and so on. TCMISS(V2.5) was used to build a prescription database of Tibetan medicine containing T. chebula.The software statistical statement module, association rules and improved mutual information method and other data mining technologies were adopted to analyze the common herbs, combination rules and core combination of prescriptions containing T. chebula.Total 502 prescriptions containing T. chebula were analyzed and 14 common herbal combinations were summarized, whose ingredients mostly had the functions of clearing heat and detoxicating, promoting blood circulation and stopping pain, warming the middle-jiao and promoting the circulation of Qi. Prescriptions containing T. chebula were commonly used to treat 640 kinds of diseases, there are 22 kinds with high frequency(>=12) in which the representative "Tripa" disease, antiquated febrile symptoms, food poisoning had the highest frequency.T. chebula had different therapeutic effects through different compatibility.The complex composing and medication regularities of Tibetan medicine containing T. chebula have been clarified by TCMISS. That will provide reference for the clinical application of T. chebula and the new development. PMID- 29027441 TI - [Progress of stress-induced flowering in plants]. AB - Plants tend to flower earlier if placed under stress conditions. Those stress factors include drought, high salinity, low temperature, high- or low-intensity light, and ultraviolet light. This phenomenon has been called stress-induced flowering. Stress-induced plant flowering might be helpful for species preservation. Thus, stress-induced flowering might have biological significance and should be considered as important as other plant flowering control strategy. Here, history of stress-induced flowering, metabolic regulation and molecular regulation mechanisms in plants were reviewed. Potential perspective was discussed. PMID- 29027442 TI - [Progress and prospect of bio-jet fuels industry in domestic and overseas]. AB - We reviewed the progress of the bio-jet fuels industry in recent years and systematically analyzed the technical routes that have been approved or in the pipeline for approval by ASTM D7566. In addition, we highlighted a novel pathway to produce drop-in fuel by near-critical hydrolysis of waste cooking oils or algal oils followed by catalytic decarboxylation. Also, we introduced the source of oils and fats feedstock and the domestic bio-jet fuel industry status during the 12th Five-Year-Plan period. Based on our own research, we discussed the prospect of the bio-jet fuel industry and future research needs. PMID- 29027443 TI - [Gene regulatory network of hepatocellular carcinoma: a review]. AB - Hepatocellular carcinoma (HCC) is one of the common malignant tumors. HCC gene regulatory network (HCC GRN), whose nodes consist of genes, miRNAs or TFs and whose edges consist of interaction relationships of nodes, is one of the important ways to study molecular mechanism of HCC. Based on various experimental data, types of HCC GRNs could be conducted such as TF-miRNA regulatory network. Integrating the studies of HCC GRN, TF-miRNA transcriptional regulatory network performs better in identifying core genes which play important roles in network disturbances. It is a trend that gene variations and transcriptional regulatory networks should be combined, however the corresponding research is almost blank. This review summarizes the source of HCC data sources, the classification, character, and research program of HCC GRN. Finally, according to present analysis and discussion of progress and research status of HCC GRN, we provide a useful reference for researchers. PMID- 29027444 TI - [Progress in microbial production of prodigiosin]. AB - Prodigiosin is an important natural red pigment that is produced as a secondary metabolite by microorganisms, and has great potential applications in the field of pharmaceutical development, environmental management and dye preparation. This paper reviews recent research progress in the production of prodigiosin by microbial fermentation, including discovery and modification of the prodigiosin producing microorganisms, regulation and optimization of prodigiosin fermentation and extraction process, and resolution of biosynthetic pathway of prodigiosin and related transcriptional regulation. Finally, we discussed the future research directions in microbial production of prodigiosin. PMID- 29027446 TI - [Interactions of aminoglycosides with RNAs and proteins via carbohydrate microarray]. AB - Aminoglycosides are broad-spectrum antibacterials to treat bacterial infections, especially gram-negative bacteria infections. However, aminoglycosides are losing efficacy because of the increase in antibiotic resistance and their inherent toxicity, attracting more interests in developing new aminoglycosides. Several clinically used aminoglycosides are mainly exerted by inhibition of protein synthesis through binding to bacterial rRNA. The bacterial ribosome RNA is the most currently exploited RNA drug target. Identification of new compounds that target RNAs is indispensable to fight with the growing threat that bacteria pose to human safety. In this work, we used carbohydrate microarrays to probe interactions of low molecular weight ligands with RNAs and proteins. Carbohydrate microarrays, comprising hundreds to thousands of different glycan structures on surfaces in a spatially discrete pattern, are sensitive and versatile tools to study the interactions between biological macromolecules. Herein, aminoglycosides have been immobilized onto the modified glass microscope slides and their interactions with RNAs and proteins are then measured through the labeled fluorescence. The results displayed that microarray can be used to detect the binding of aminoglycosides with three types of target molecules, including the small RNA oligonucleotide mimics of aminoglycoside binding sites in the ribosome (rRNA A-site mimics), the large group I ribozyme RNA (approximately 400 nucleotide) and certain proteins (toxicity-causing enzymes, such as DNA polymerase and phospholipase C). For rRNA A-site mimics, the fluorescence intensities of 16S rRNA is stronger than that of 18S rRNA, illustrating that as a screen technique, the microarray method can not only determine the binding affinity to RNA but also detect the specific binding to bacterial rRNA mimic. The ability to screen group I ribozyme RNA can be helpful to the discovery of new RNA therapeutic targets. Binding of immobilized aminoglycosides to toxicity-causing proteins (DNA polymerase and phospholipase C) is a new method to study of aminoglycoside toxicity. These studies lay the foundation for rapid identification of new RNA-binding ligands with strong and specific binding affinity for their desired targets. PMID- 29027445 TI - [Analysis of immobilized L-glutamate oxidase fused with cellulose binding domain on microcrystalline cellulose]. AB - Immobilization of enzymes is important and widely applied in biocatalysis. Streptomyces platensis gene gox, encoding an extracellular L-glutamate oxidase (Gox), was fused to cellulose binding domain (CBDcex) from Cellulomonas fimi and the recombinant protein Gox-CBD was expressed in Escherichia coli. The fusion protein (Gox-CBD) was immobilized onto microcrystalline cellulose. The preparation conditions, binding capacity, properties and stability of the immobilized enzyme were studied. Under the condition of 4 C, for 1 hour, the fusion protein Gox-CBD was able to bind microcrystalline cellulose at a ratio of 9.0 mg of protein per gram of microcrystalline cellulose. Enzymatic properties of free and immobilized L-glutamic oxidase (Gox-CBD) were compared. The specific activity of the immobilized enzyme decreased, but its thermal stability increased a lot compared with that of the free Gox-CBD. After incubation at 60 C for 30 min, 70% of the total activity remained whereas the free recombinant Gox completely lost its activity. The immobilized protein was tightly bound to microcrystalline cellulose at pH below 10 or more than 5 mmol/L NaCl. The fusion protein of Gox-CBD can be specifically immobilized on the microcrystalline cellulose on a single step. Therefore, our findings can provide a novel strategy for protein purification and enzyme immobilization. PMID- 29027447 TI - [Influence of expressing IrrE from Deinococcus radiodurans on osmotic stress tolerance of succinate-producing Escherichia coli]. AB - Hyper-osmotic stress is one of the key factors that decrease the efficiency of biological succinic acid production. To increase the osmotic stress tolerance of succinate-producing Escherichia coli, we studied the influence of IrrE, an exogenous global regulator, on cell osmotic stress resistance. Fermentation results showed that cell growth and succinic acid production by the recombinant increased under different Na+ concentrations. Meanwhile, the maximum dry cell mass, glucose consumption and succinic acid concentration increased 15.6%, 22% and 23%, respectively, when fermented in a 5-L bioreactor. Expressing IrrE improved cell resistance to hyper-osmotic stress. Further comparison of intracellular osmoprotectants (trehalose and glycerol) concentrations showed that trehalose and glycerol concentrations in the recombinant increased. This suggested that introduction of IrrE could enhance intracellular osmoprotectants accumulation which conferred cell with improved resistance to osmotic stress. PMID- 29027448 TI - [Gene optimization and efficient expression of Trichoderma reesei Cel5A in Pichia pastoris]. AB - Deficient activity of endo-1,4-beta-glucanase II (Cel5A) secreted by Trichoderma reesei is one of the challenges involved in effective cellulase saccharification of cellulosic substrates. Therefore, we expressed Cel5A in Pichia pastoris by constructing a recombinant strain. With the gene optimization based on codon bias, and the construction of expression vector pPIC9K-eg2, the optimized gene was electro-transformed into P. pastoris GS115 to form transformants. Then, a high Cel5A activity producing recombinant, namely P. pastoris GS115-EG II, was selected on G-418 resistant plates, followed by shake-flask cultivation. Enzyme characterization showed that the recombinant Cel5A reacted optimally at pH 4.5 and 60 C, with 50 kDa of molecular weight, preferentially degrading amorphous cellulose. Recombinant Cel5A was not significantly different from the native T. reesei Cel5A. Moreover, a shake-flask fermentation of the recombinant strain was optimized as below: incubation temperature 28 C, initial pH 5.0, inoculum volume 2%, methanol addition (per 24 h) 1.5% (V/V), sorbitol addition (per 24 h) 4 g/L and Tween 80 4 g/L. Under above optimized condition, the recombinant produced 24.0 U/mL of the Cel5A after 192 h fermentation. When incubated in a 5 L fermentation, Cel5A enzyme activity reached 270.9 U/mL at 180 h, with 4.16 g/L of the total protein. The study indicates that the recombinant strain P. pastoris GS115-EG II is extremely suitable for heterologous expression of T. reesei cellulase Cel5A. And the recombinant Cel5A can be used as an alternative to the native T. reesei Cel5A in development of a commercially relevant enzyme based biorefinery process. PMID- 29027449 TI - [Soluble expression, purification and structural analysis of the bHLH transcription factor Bmsage of Bombyx mori]. AB - Basic helix loop helix (bHLH) transcription factor plays an important role in biological processes. Bmsage is a class of bHLH transcription factor highly expressed in the silk gland of Bombyx mori, which is not only involved in the developmental regulation of the silk gland cells at the embryonic period, but also plays a crucial regulatory role during the synthesis of silk protein. However, currently, much of the property and structure of Bmsage is still remained unknown. To study the property, structure and biological role of Bmsage, we constructed several prokaryotic expression vectors of Bmsage fused with NusA, MBP, SUMO, Trx and His tags, respectively, then screened and determined the best soluble expression vector and condition of Bmsage in Escherichia coli combining with the induction temperature and IPTG concentration, and further purified the recombinant Bmsage by Ni-column affinity chromatography according to the established expression condition and characterized its secondary structure using circular dichroism spectra. The results showed that NusA and MBP could significantly enhance the soluble expression of Bmsage in E. coli, but it was difficult to separate Bmsage from these tags. SUMO could not only increase the soluble expression of Bmsage in E. coli to a certain degree, but also be effectively separated from Bmsage. Other tags did not effectively promote the soluble expression of Bmsage in E. coli. Circular dichroism spectra showed that the purified Bmsage had well-defined alpha-helix structure in solution, indicating that SUMO may promote the correct folding of Bmsage into native-like structure. These work not only establish a foundation for further study of the property, structure and function of Bmsage, but also provide a reference for the expression and purification of other similar proteins. PMID- 29027450 TI - [Cloning and expression of scavenger receptor class B BmSCRB8 in silkworm Bombyx mori]. AB - Scavenger receptor class B is involved in various indispensable physiological processes, like the formation and inhibition of atherosclerosis or other cardiovascular diseases, innate immune defense and the removal of apoptotic cells. Here, we cloned BmSCRB8, a member of scavenger receptor class B in silkworm. We obtained the full-length cDNA sequence of BmSCRB8 by rapid amplification of cDNA ends (RACE), including 2 668 bp. The ORF of BmSCRB8 is 1 704 bp, encoding 567 amino acids. Online software prediction indicated that the molecular weight of BmSCRB8 is 63.87 kDa and the isoelectric point (pI) is 6.06. The space-time expression profile of BmSCRB8 was detected by reverse transcription PCR (RT-PCR), which implicated that BmSCRB8 is extensively expressed in each tissue and at each stage of blood. In addition, BmSCRB8 is highest expressed in fat body of silkworm, and is highly expressed in metamorphosis periods. Anti-BmSCRB8 polyclonal antibody was generated through prokaryotic expression, protein purification and mice immunization. Simultaneously, we constructed BmSCRB8 eukaryotic vector and then transfected embryonic cell line of silkworm. Immunofluorescence and overexpression showed that BmSCRB8 expressed specifically in membrane. Western blotting demonstrated that BmSCRB8 protein can be specifically recognized by anti-serum generated after mice immunization. PMID- 29027452 TI - [Expression and activity assay of recombinant flap endonuclease 1]. AB - Flap endonuclease 1 (FEN1) is an endonuclease that catalyzes invasive reaction. It can be used in signal-amplification reaction-based nucleic acid assay. However, the application of FEN1 is hampered due to the lack of detailed protocols to express and purify the enzyme, and to quantify the enzyme activity. In this paper, the DNA fragment coding the gene of FEN1 from Archaeoglobus fulgidus was synthesized, and inserted into the plasmid of pET24a(+) to express recombinant FEN1 with His-tag. After optimizing the expression, detailed expression protocol of FEN1 was obtained by culturing the recombinant E. coli at 37 C with 200 r/min of shaking for 8 h, followed by inducing with 0.05 mmol/L IPTG at 37 C for 11 h. The purified recombinant FEN1 with the molecular mass of 38 kDa was obtained by Ni-affinity chromatography. Moreover, we developed a accurate quantification method with fluorescence-labelled probes. Finally, the recombinant FEN1 was used in real-time PCR coupled with high specific invader assay for aldh2 gene genotyping to obtain the correct typing results, indicating that the recombinant FEN1 can be used in gene polymorphism detection. We provide a reliable enzyme for developing invasive reaction-based nucleic acid assay. PMID- 29027451 TI - [Enhancing the ability of autophagy and proliferation of bone marrow mesenchymal stem cells by interleukin-8 through Akt-STAT3 pathway in hypoxic environment]. AB - To study the effects and mechanisms of interleukin-8 (IL-8) on the proliferation and autophagy of human bone marrow mesenchymal stem cells (hBMSC) under hypoxic condition. In the hypoxia model, we set the non-stimulated hBMSC as the hypoxia control group; the hBMSC stimulated by 100 MUmol/L human IL-8 as the IL-8 group; the hBMSC stimulated by 50 MUmol/L MK2206 (Akt protein inhibitor) and 100MUmol/L IL-8 as the Akt inhibitor group; and the normal cultured hBMSC as the normal control group. The experiments of EdU cell proliferation and TUNEL apoptosis were respectively used to detect the number of positive cells that were labeled by EdU and apoptosis in each group, and Western blotting and ELISA were used respectively to detect the expression of autophagy protein (LC-3), Akt/STAT3 and other proteins in each group. The results indicated that the proliferation and autophagy of hBMSC in IL-8 group was higher than that in hypoxia control group and Akt inhibitor group, and the apoptosis rate in IL-8 group decreased. These results and the high expression of Akt, STAT3 and VEGF protein of IL-8 group show that under the hypoxic condition, IL-8 played a protective role on MSC through the Akt-STAT3 pathway. It had important significance in the protection of MSC against the injury due to ischemia and hypoxia, and promoted the application of MSC in regenerative medicine. PMID- 29027453 TI - [Ubiquitinated proteomics research of Hep3B]. AB - Ubiquitination is one of the most major post-translational modifications playing important role in regulation of intra-cellular proteins' stability, degradation, localization and biological activity. However, these proteins are difficult to be detected due to their low abundance, short half-life. In this study, ubiquitin binding domains (UBDs) were constructed to purify the ubiquitinated proteins from Hep3B cells. Ubiquitinated proteins and sites were detected by LC-MS/MS. A total of 1 900 potential ubiquitinated proteins were identified. Among them, 158 ubiquitinated sites were identified, belonging to 102 proteins. Bioinformatics analysis revealed that the enriched pathways of ubiquitinated proteins were closely related to tumor occurrence and development. The dysfunction of ubiquitin proteasome has a high correlation with cell signaling and extracellular matrix changing in tumor cells. PMID- 29027454 TI - [Delivery of recombinant enhanced green fluorescent protein to Pichia pastoris cell wall directed by a mammalian nonclassical secretion signal peptide]. AB - A mammalian nonclassical secretion sequence derived from mouse Engrailed2 homeoprotein (En2) was used to direct the secretion of the enhanced green fluorescent protein from Pichia pastoris. This signal peptide conferred the transport of enhanced green fluorescent protein into periplasm through an endoplasmic reticulum-golgi independent pathway, without inducing severe unfolded protein response as compared with Saccharomyces cerevisae alpha-factor preprosequence. This study implies that this mammalian nonclassical signal peptide could be developed as a useful tool for delivering cargoes to the cell surface of yeast. PMID- 29027455 TI - [Construction and verification of NF-kappaB luciferase reporter gene system]. AB - To quantify the transcriptional activity of NF-kappaB and to screen drugs related to the regulation of NF-kappaB activation, we constructed a recombinant plasmid through deleting the original CMV promoter of retrovirus vector pQCXIP and inserting the NF-kappaB enhancer and NanoLuc luciferase sequence into the vector. Then, using the recombinant plasmid we constructed a cell line in which the expression of NanoLuc luciferase (NLuc) was regulated by NF-kappaB. The inserted sequences were verified by restriction endonuclease digestion and sequencing. Tumor necrosis factor-alpha (TNF-alpha), an NF-kappaB activator, acted on the constructed NLuc cell line and leaded to the specific luciferase reaction. The luciferase reaction showed a fine time and dose dependence to the TNF-alpha stimulation, indicating the successful construction of the NF-kappaB regulated NLuc-expressing cell line. Besides, the NF-kappaB inhibitor, triptolide, reduced the expression of NLuc in a dose-dependent way. The constructed reporter system in this study could be applied in the quantification of the NF-kappaB transcriptional activity and in the NF-kappaB regulation-related drug screening. PMID- 29027456 TI - Highly Efficient Photocatalytic Water Splitting over Edge-Modified Phosphorene Nanoribbons. AB - Two-dimensional phosphorene with desirable optoelectronic properties (ideal band gap, high carrier mobility, and strong visible light absorption) is a promising metal-free photocatalyst for water splitting. However, the band edge positions of the valence band maximum (VBM) and conduction band maximum (CBM) of phosphorene are higher than the redox potentials in photocatalytic water splitting reactions. Thus, phosphorene can only be used as the photocathode for hydrogen evolution reaction as a low-efficiency visible-light-driven photocatalyst for hydrogen production in solar water splitting cells. Here, we propose a new mechanism to improve the photocatalytic efficiency of phosphorene nanoribbons (PNRs) by modifying their edges for full reactions in photocatalytic water splitting. By employing first-principles density functional theory calculations, we find that pseudohalogen (CN and OCN) passivated PNRs not only show desired VBM and CBM band edge positions induced by edge electric dipole layer, but also possess intrinsic optoelectronic properties of phosphorene, for both water oxidation and hydrogen reduction in photocatalytic water splitting without using extra energy. Furthermore, our calculations also predict that the maximum energy conversion efficiency of heterojunction solar cells consisting of different edge-modified PNRs can be as high as 20% for photocatalytic water splitting. PMID- 29027457 TI - Gravimetric Standard Gas Mixtures for Global Monitoring of Atmospheric SF6. AB - In this study, standard gas mixtures of SF6 in synthetic air were gravimetrically developed as a suite consisting of 6 mixtures with mole fractions of SF6 ranging from 5 to 15 pmol/mol. For precision in weighing the gas fills, an automatic weighing system coupled with a high sensitivity mass balance was used and a gravimetry precision of 3 mg (2sigma) was achieved. Impurity profiles of the raw gases were determined by various analyzers. In particular, sub pmol/mol levels of SF6 in the matrix components (N2, O2, and Ar) were carefully measured, since the mole fraction of SF6 in the final step can be significantly biased by this trace amount of SF6 in the raw gases of the matrix components. Gravimetric dilution of SF6 by purity-assessed N2 was performed in 6 steps to achieve a mole fraction of 440 pmol/mol. In the final step, O2 and Ar were added to mimic the atmospheric composition. Gravimetric fractions of SF6 and the associated standard uncertainty in each step were computed according to the ISO 6142 and JCGM 100:2008, respectively, and validated experimentally. Eventually, the SF6 fraction uncertainty of the standard gas mixtures combined by uncertainties of gravimetric preparation and verification measurements were found to be nominally 0.08% at a 95% confidence interval. A comparison with independent calibration standards from NOAA shows agreement within 0.49%, satisfying the extended WMO compatibility goal, 0.05 ppt. PMID- 29027458 TI - The Stringent Response Induced by Phosphate Limitation Promotes Purine Salvage in Agrobacterium fabrum. AB - Agrobacterium fabrum induces tumor growth in susceptible plant species. The upregulation of virulence genes that occurs when the bacterium senses plant derived compounds is enhanced by acidic pH and limiting inorganic phosphate. Nutrient starvation may also trigger the stringent response, and purine salvage is among the pathways expected to be favored under such conditions. We show here that phosphate limitation induces the stringent response, as evidenced by production of (p)ppGpp, and that the xdhCSML operon encoding the purine salvage enzyme xanthine dehydrogenase is upregulated ~15-fold. The xdhCSML operon is under control of the TetR family transcription factor XdhR; direct binding of ppGpp to XdhR attenuates DNA binding, and the enhanced xdhCSML expression correlates with increased cellular levels of (p)ppGpp. Xanthine dehydrogenase may also divert purines away from salvage pathways to form urate, the ligand for the transcription factor PecS, which in the plant pathogen Dickeya dadantii is a key regulator of virulence gene expression. However, urate levels remain low under conditions that produce increased levels of xdhCSML expression, and neither acidic pH nor limiting phosphate results in induction of genes under control of PecS. Instead, expression of such genes is induced only by externally supplemented urate. Taken together, our data indicate that purine salvage is favored during the stringent response induced by phosphate starvation, suggesting that control of this pathway may constitute a novel approach to modulating virulence. Because bacterial purine catabolism appears to be unaffected, as evidenced by the absence of urate accumulation, we further propose that the PecS regulon is induced by only host-derived urate. PMID- 29027459 TI - Plasmon-Induced Selective Oxidation Reaction at Single-Walled Carbon Nanotubes. AB - Local surface plasmon resonance (LSPR)-induced oxidation of semiconducting and metallic single-walled nanotubes (SWNTs) on the nanometer scale was investigated using surface-enhanced Raman scattering (SERS) measurements. An isolated SWNT was supported on a well-defined Au nanodimer structure that possesses an LSPR field at the nanogap under light irradiation, and highly intense SERS spectra of the SWNT at the gap region were measured. SERS analysis under O2-saturated solutions and the addition of reactive oxygen species inhibitors demonstrated that condensed singlet oxygen (1O2), which is one of the reactive oxygen species, was efficiently generated from a semiconducting SWNT at the nanogap by the LSPR field and led to the local oxidation of the tube. In contrast to the semiconducting SWNT, no defect formation was observed in a metallic SWNT, probably because of rapid quenching of the photoexcited state. This selective local defect formation by LSPR-induced oxidation of a semiconducting SWNT would provide novel nanoprocessing and nanofunctionalization methods for the fabrication of future SWNT-based nanodevices. PMID- 29027460 TI - Synthesis of Enantiopure Mixed Alkyl-Aryl Vicinal Diamines by the Diaza-Cope Rearrangement: A Synthesis of (+)-CP-99,994. AB - The stereoselective synthesis of mixed alkyl-aryl vicinal diamines was demonstrated by the use of 1,2-bis(2-hydroxyphenyl)-1,2-diaminoethene (hpen). A sequential addition of aryl and alkyl aldehyde to hpen gave a fused imidazolidine dihydro-1,3-oxazine ring stereoselectively, which undergoes the diaza-Cope rearrangement to provide mixed vicinal diimines at elevated temperature in good yields and excellent stereoselectivity. We also showed that (+)-CP-99,994 can be readily prepared by the diaza-Cope rearrangement in overall 42% yield. PMID- 29027461 TI - Nonpolar Resistive Switching in Ag@TiO2 Core-Shell Nanowires. AB - Nonpolar resistive switching (RS), a combination of bipolar and unipolar RS, is demonstrated for the first time in a single nanowire (NW) system. Exploiting Ag@TiO2 core-shell (CS) NWs synthesized by postgrowth shell formation, the switching mode is controlled by adjusting the current compliance effectively, tailoring the electrical polarity response. We demonstrate ON/OFF ratios of 105 and 107 for bipolar and unipolar modes, respectively. In the bipolar regime, retention times could be controlled up to 103 s, and in the unipolar mode, >106 s was recorded. We show how the unique dual-mode switching behavior is enabled by the defect-rich polycrystalline material structure of the TiO2 shell and the interaction between the Ag core and the Ag electrodes. These results provide a foundation for engineering nonpolar RS behaviors for memory storage and neuromorphic applications in CSNW structures. PMID- 29027462 TI - Dual-Signal Microbial Biosensor for the Detection of Dopamine without Inference from Other Catecholamine Neurotransmitters. AB - Dopamine, one of catecholamine neurotransmitters, plays an important role in many brain functions and behavioral responses. In this study, we developed a novel dual-signal whole-cell biosensor for the detection of dopamine through the generation of red fluorescent proteins and 6-decarboxylated betaxanthin pigments. The proposed system responses specifically to dopamine with a detection limit of 1.43 MUM. Furthermore, a combination of dual output signals makes it possible to reduce the interference from other catecholamine neurotransmitters, including L DOPA, epinephrine, and norepinephrine. PMID- 29027463 TI - Machine-Learning-Based Olfactometer: Prediction of Odor Perception from Physicochemical Features of Odorant Molecules. AB - Gas chromatography/olfactometry (GC/O) has been used in various fields as a valuable method to identify odor-active components from a complex mixture. Since human assessors are employed as detectors to obtain the olfactory perception of separated odorants, the GC/O technique is limited by its subjectivity, variability, and high cost of the trained panelists. Here, we present a proof-of concept model by which odor information can be obtained by machine-learning-based prediction from molecular parameters (MPs) of odorant molecules. The odor prediction models were established using a database of flavors and fragrances including 1026 odorants and corresponding verbal odor descriptors (ODs). Physicochemical parameters of the odorant molecules were acquired by use of molecular calculation software (DRAGON). Ten representative ODs were selected to build the prediction models based on their high frequency of occurrence in the database. The features of the MPs were extracted via either unsupervised (principal component analysis) or supervised (Boruta, BR) approaches and then used as input to calibrate machine-learning models. Predictions were performed by various machine-learning approaches such as support vector machine (SVM), random forest, and extreme learning machine. All models were optimized via parameter tuning and their prediction accuracies were compared. A SVM model combined with feature extraction by BR-C (confirmed only) was found to afford the best results with an accuracy of 97.08%. Validation of the models was verified by using the GC/O data of an apple sample for comparison between the predicted and measured results. The prediction models can be used as an auxiliary tool in the existing GC/O by suggesting possible OD candidates to the panelists and thus helping to give more objective and correct judgment. In addition, a machine-based GC/O in which the panelist is no longer needed might be expected after further development of the proposed odor prediction technique. PMID- 29027464 TI - Thermal Stability-Enhanced and High-Efficiency Planar Perovskite Solar Cells with Interface Passivation. AB - As the electron transport layer (ETL) of perovskite solar cells, oxide semiconductor zinc oxide (ZnO) has been attracting great attention due to its relatively high mobility, optical transparency, low-temperature fabrication, and good environment stability. However, the nature of ZnO will react with the patron on methylamine, which would deteriorate the performance of cells. Although many methods, including high-temperature annealing, doping, and surface modification, have been studied to improve the efficiency and stability of perovskite solar cells with ZnO ETL, devices remain relatively low in efficiency and stability. Herein, we adopted a novel multistep annealing method to deposit a porous PbI2 film and improved the quality and uniformity of perovskite films. The cells with ZnO ETL were fabricated at the temperature of <150 degrees C by solution processing. The power conversion efficiency (PCE) of the device fabricated by the novel annealing method increased from 15.5 to 17.5%. To enhance the thermal stability of CH3NH3PbI3 (MAPbI3) on the ZnO surface, a thin layer of small molecule [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was inserted between the ZnO layer and perovskite film. Interestingly, the PCE of PCBM-passivated cells could reach nearly 19.1%. To our best knowledge, this is the highest PCE value of ZnO-based perovskite solar cells until now. More importantly, PCBM modification could effectively suppress the decomposition of MAPbI3 and improve the thermal stability of cells. Therefore, the ZnO is a promising candidate of electron transport material for perovskite solar cells in future applications. PMID- 29027466 TI - Junction Quality of SnO2-Based Perovskite Solar Cells Investigated by Nanometer Scale Electrical Potential Profiling. AB - Electron-selective layers (ESLs) and hole-selective layers (HSLs) are critical in high-efficiency organic-inorganic lead halide perovskite (PS) solar cells for charge-carrier transport, separation, and collection. We developed a procedure to assess the quality of the ESL/PS junction by measuring potential distribution on the cross section of SnO2-based PS solar cells using Kelvin probe force microscopy. Using the potential profiling, we compared three types of cells made of different ESLs but otherwise having an identical device structure: (1) cells with PS deposited directly on bare fluorine-doped SnO2 (FTO)-coated glass; (2) cells with an intrinsic SnO2 thin layer on the top of FTO as an effective ESL; and (3) cells with the SnO2 ESL and adding a self-assembled monolayer (SAM) of fullerene. The results reveal two major potential drops or electric fields at the ESL/PS and PS/HSL interfaces. The electric-field ratio between the ESL/PS and PS/HSL interfaces increased in devices as follows: FTO < SnO2-ESL < SnO2 + SAM; this sequence explains the improvements of the fill factor (FF) and open-circuit voltage (Voc). The improvement of the FF from the FTO to SnO2-ESL cells may result from the reduction in voltage loss at the PS/HSL back interface and the improvement of Voc from the prevention of hole recombination at the ESL/PS front interface. The further improvements with adding an SAM is caused by the defect passivation at the ESL/PS interface, and hence, improvement of the junction quality. These nanoelectrical findings suggest possibilities for improving the device performance by further optimizing the SnO2-based ESL material quality and the ESL/PS interface. PMID- 29027465 TI - Multi-Stage Structural Transformations in Zero-Strain Lithium Titanate Unveiled by in Situ X-ray Absorption Fingerprints. AB - Zero-strain electrodes, such as spinel lithium titanate (Li4/3Ti5/3O4), are appealing for application in batteries due to their negligible volume change and extraordinary stability upon repeated charge/discharge cycles. On the other hand, this same property makes it challenging to probe their structural changes during the electrochemical reaction. Herein, we report in situ studies of lithiation driven structural transformations in Li4/3Ti5/3O4 via a combination of X-ray absorption spectroscopy and ab initio calculations. Based on excellent agreement between computational and experimental spectra of Ti K-edge, we identified key spectral features as fingerprints for quantitative assessment of structural evolution at different length scales. Results from this study indicate that, despite the small variation in the crystal lattice during lithiation, pronounced structural transformations occur in Li4/3Ti5/3O4, both locally and globally, giving rise to a multi-stage kinetic process involving mixed quasi-solid solution/macroscopic two-phase transformations over a wide range of Li concentrations. This work highlights the unique capability of combining in situ core-level spectroscopy and first-principles calculations for probing Li-ion intercalation in zero-strain electrodes, which is crucial to designing high performance electrode materials for long-life batteries. PMID- 29027467 TI - Synthesis of Secondary Aromatic Amides via Pd-Catalyzed Aminocarbonylation of Aryl Halides Using Carbamoylsilane as an Amide Source. AB - Using N-methoxymethyl-N-organylcarbamoyl(trimethyl)silanes as secondary amides source, the direct transformation of aryl halides into the corresponding secondary aromatic amides via palladium-catalyzed aminocarbonylation is described. The reactions tolerated a broad range of functional groups on the aryl ring except big steric hindrance of substituent. The types and the relative position of substituents on the aryl ring impact the coupling efficiency. PMID- 29027468 TI - Serrated polyposis syndrome associated with long-standing inflammatory bowel disease. AB - Inflammatory bowel disease (IBD) patients are at an increased risk of developing colorectal cancer (CRC), which is thought to develop via the adenoma-carcinoma pathway. Since the discovery of the serrated carcinogenesis pathway and serrated polyposis syndrome (SPS), the incidence of carcinomas arising from serrated lesions in IBD patients has increased. We report three cases of long-standing IBD patients with associated serrated polyposis syndrome. At present, the pathophysiology of serrated lesions in IBD patients is not fully understood and there is a lack of strong evidence to confirm whether the manifestation of both conditions represents an increased risk of developing cancer. Therefore, more accurate surveillance guidelines are needed and are being actively investigated at present. PMID- 29027469 TI - Bucking the current trend in bioelectrochemical systems: a case for bioelectroanalytics. AB - Turning wastewater directly into electricity is alluring, widespread use of microbial fuel cells (MFCs) to achieve this at industrial scale appears increasingly unlikely despite intense research efforts lasting over a decade. Such endeavors have not been futile, however, and game-changing discoveries have resulted from these well-intentioned, scientifically rigorous but ultimately frustrated attempts to resolve the Waste-Energy dichotomy. The appeal of MFCs is largely of conceptual elegance rather than financial competitiveness, based on the green ideal that bacteria can be turned into cost effective bio-batteries. This notion is founded on the solid principles of extracellular electron transfer (EET), where microbes use electrodes interchangeably with other electron acceptors to generate current as a direct proxy for microbial metabolism. We contend that a nuanced understanding of EET has been restricted by focusing on device performance when in fact this information could be more beneficially channeled into addressing analytical questions pertaining to the presence and activity of microorganisms across systems of environmental and medical import, i.e. bioelectroanalytics. We discuss here relevant literature detailing bioelectrochemical systems and contrast energy-centric conclusions with observations geared towards bioelectroanalytics. We explore the expanding possibilities of bioelectroanalytics enabled by advances in genetic techniques and rooted in the concept that microbial interactions with an electrode extend to more than just cells seeking alternative electron acceptors. Our intention is to highlight alternative directions in the field and encourage researchers to harness bioelectroanalytics to address wider societal problems, in addition to addressing climate change. PMID- 29027470 TI - Next generation sequencing applications for cardiovascular disease. AB - The Human Genome Project (HGP), as the primary sequencing of the human genome, lasted more than one decade to be completed using the traditional Sanger's method. At present, next-generation sequencing (NGS) technology could provide the genome sequence data in hours. NGS has also decreased the expense of sequencing; therefore, nowadays it is possible to carry out both whole-genome (WGS) and whole exome sequencing (WES) for the variations detection in patients with rare genetic diseases as well as complex disorders such as common cardiovascular diseases (CVDs). Finding new variants may contribute to establishing a risk profile for the pathology process of diseases. Here, recent applications of NGS in cardiovascular medicine are discussed; both Mendelian disorders of the cardiovascular system and complex genetic CVDs including inherited cardiomyopathy, channelopathies, stroke, coronary artery disease (CAD) and are considered. We also state some future use of NGS in clinical practice for increasing our information about the CVDs genetics and the limitations of this new technology. Key messages Traditional Sanger's method was the mainstay for Human Genome Project (HGP); Sanger sequencing has high fidelity but is slow and costly as compared to next generation methods. Within cardiovascular medicine, NGS has been shown to be successful in identifying novel causative mutations and in the diagnosis of Mendelian diseases which are caused by a single variant in a single gene. NGS has provided the opportunity to perform parallel analysis of a great number of genes in an unbiased approach (i.e. without knowing the underlying biological mechanism) which probably contribute to advance our knowledge regarding the pathology of complex diseases such as CVD. PMID- 29027471 TI - Ascribing a novel role for tmRNA of Escherichia coli in resistance to mitomycin C. AB - AIM: The ssrA mutants were found to be more sensitive to mitomycin C (MMC) and our aim was to study this phenomenon in detail. MATERIALS & METHODS: Strains were constructed by P1 transduction. pssrA+ plasmid was constructed by PCR-based cloning and transformation was done by CaCl2 method. Relative viability analyses were done to assess the extent of viability of strains in relevant conditions. Gram staining was used for microscopic analysis. RESULTS: ssrA mutants become sensitive specifically to MMC, that too in a strain-specific manner. Precise tagging function of SsrA is necessary for conferring resistance to MMC. sulA::kan restored the viability of ssrA::cat mutants in a strain-specific manner. CONCLUSION: This study for the first time implicates SsrA in progression of efficient cell division and resistance to MMC. PMID- 29027472 TI - Using Decisional Conflict to Evaluate Patient Engagement During Hospital Discharge. PMID- 29027473 TI - Developing Diverse Leaders at Academic Health Centers: A Prerequisite to Quality Health Care? PMID- 29027474 TI - On the metabolites produced by Colletotrichum gloeosporioides a fungus proposed for the Ambrosia artemisiifolia biocontrol; spectroscopic data and absolute configuration assignment of colletochlorin A. AB - Ambrosia artemisiifolia L. is responsible for serious allergies induced on humans. Different approaches for its control were proposed during the COST Action FA1203 "Sustainable management of Ambrosia artemisiifolia in Europe" (SMARTER). Fungal secondary metabolites often show potential herbicidal activity. Three phytotoxins were purified from the fungal culture filtrates of Colletotrichum gloeosporioides, isolated from infected leaves of A. artemisiifolia. They were identified by spectroscopic and chemical methods as colletochlorin A, orcinol and tyrosol (1, 2 and 3). The absolute configuration 6'R to colletochlorin A was assigned for the first time applying the advanced Mosher's method. When assayed by leaf-puncture on A. artemisiifolia only 1 caused the appearance of large necrosis. The same symptoms were also induced by 1 on ambrosia plantlets associated with plant wilting. On Lemna minor, colletochlorin A caused a clear fronds browning, with a total reduction in chlorophyll content. PMID- 29027475 TI - Antimould microbial and plant metabolites with potential use in intelligent food packaging. AB - Moulds food infestation is a heavy dangerous problem for human health and also could generate heavy economic losses. The intelligent packaging using eco friendly biodegradable biofilm incorporating bioactive natural safe compounds represents a new frontier. This manuscript reports the inhibitory activity of 12 bacterial, fungal and plant metabolites against Penicillium roqueforti and Aspergillus niger. Among them alpha-costic acid and ungeremine (3 and 12) are the most promising as potential biofungicide against both fungal strains. They inhibited fungal growth by more than 60% respect to the control at 72 h and this activity persisted also at 96 h. Ungeremine showed MIC90 lower than 0.003 mg/mL after 48 h of incubation and of 0.025 mg/mL at 72 h against P. roqueforti. The MIC90 value for A. niger was 0.2 mg/mL at 48 h for both compounds. The alpha costic acid showed generally MIC values at 48 and 72 h higher than ungeremine. PMID- 29027476 TI - Caregiver Valuation of Chest Radiography for the Diagnosis of Pneumonia in Children. PMID- 29027477 TI - A Previsit Screening Checklist Improves Teamwork and Access to Preventive Services in a Medical Home Serving Low-Income Adolescent and Young Adult Patients. AB - Publicly insured adolescents and young adults experience significant obstacles in accessing primary care services. As a result, they often present to their medical appointments with multiple unmet needs, adding time and complexity to the visit. The goal of this project was to optimize team work and access to primary care services among publicly insured adolescents and young adults attending an urban primary care clinic, using a previsit screening checklist to identify patient needs and delegate tasks within a care team to coordinate access to health services at the time of the visit. We conducted an interventional quality improvement initiative in a PDSA (Plan-Do-Study-Act) cycle format; 291 patients, 13 to 25 years old were included in the study over an 8-months period. The majority of patients were receptive to the previsit screening checklist; 85% of services requested were provided; nonclinician staff felt more involved in patient care; and providers' satisfaction increased. PMID- 29027478 TI - Educational Initiative to Standardize Concussion Management in Pediatric Primary Care. AB - Pediatric primary care providers report limited training and tools to manage concussion. We developed a learning community intervention for a large independent pediatric practice association affiliated with a university hospital to standardize concussion management and improve the use of consensus-based guidelines. The learning community included in-person and online didactics, followed by a web-based reinforcement platform to educate and train clinicians on our treatment algorithm and decision support tools. Chart reviews before and after the intervention demonstrated significant increases in the use of standardized symptom rating scales (19.6% to 69.3%; P < .001), balance assessment (2.3% to 37.6%; P < .001), and scheduled follow-up (41.8% to 61.2%; P < .001), with an increase in delivery of our entire best practice bundle from 3.5% to 28.1% ( P < .001). A multimodal educational intervention can effect change among pediatric primary care providers and help align their management practices with consensus-based guidelines. PMID- 29027479 TI - Understanding Barriers to Literacy Promotion Among New Jersey General Pediatricians. AB - Low literacy is associated with poor health. We sought to examine pediatricians' attitudes and practices regarding literacy promotion in early childhood. We distributed a self-administered 23-item survey to a random sample of 500 board certified or eligible New Jersey primary care pediatricians. 134 surveys were returned, 25 of which were excluded. In all, 91% of pediatricians in our sample agreed that literacy promotion was an essential aspect of practice, and two thirds agreed that they conduct activities to promote literacy. A total of 77% of pediatricians who completed their training <=20 years ago agreed that they were adequately trained to promote literacy compared with 58% who completed their training >20 years ago ( P = .04). Physicians reported several barriers including time constraints and insufficient funding. While most pediatricians in our sample support literacy promotion, less conducted activities in practice. Further study is needed to understand how to facilitate implementation of literacy promotion guidelines. PMID- 29027480 TI - A Learning Collaborative Approach to Improve Primary Care STI Screening. AB - The Bronx Ongoing Pediatric Screening (BOPS) project sought to improve screening for sexual activity and sexually transmitted infections (gonorrhea and chlamydia [GCC] and HIV) in a primary care network, employing a modified learning collaborative, real-time clinical data feedback to practices, improvement coaching, and a pay-for-quality monetary incentive. Outcomes are compared for 11 BOPS-participating sites and 10 non-participating sites. The quarterly median rate for documenting sexual activity status increased from 55% to 88% (BOPS sites) and from 13% to 74% (non-BOPS sites). GCC screening of sexually active youth increased at BOPS and non-BOPS sites. Screening at non-health care maintenance visits improved more at BOPS than non-BOPS sites. Data from nonparticipating sites suggests that introduction of an adolescent EMR template or other factors improved screening rates regardless of BOPS participation; BOPS activities appear to promote additional improvement of screening during non health maintenance visits. PMID- 29027481 TI - Narrowing urban-suburban rural disparities in physical growth among children in China: findings from the 5th national survey in 2015. AB - BACKGROUND: Previous studies have reported a narrowing tendency in urban-suburban rural differences for height, but almost no tendency of narrowing for weight in Chinese children between 1975-2005. AIM: To examine urban-suburban rural disparities for both height and weight in a recent 10-year period. SUBJECTS AND METHODS: A representative sample of 161,643 children under 7 years old was obtained from the 5th national survey conducted in urban and suburban rural areas of the nine cities in China in 2015. Trends in urban-suburban rural differences were assessed from 1975-2015. RESULTS: Generally, urban boys and girls were taller or heavier than their suburban rural counterparts. By 2015, there were almost no obvious differences for urban-suburban rural height differences for children under 3. Urban-suburban rural weight differences narrowed sharply in the 10-year period. There were no obvious differences for urban-suburban rural height differences among the 3rd, 50th and 97th percentiles; however, the weight differences at the 97th percentile were larger than at the 50th percentile for children over 3. CONCLUSION: The narrowing urban-suburban rural disparities in China suggest the physical growth inequality may be eliminated, along with the sustained improvement of socioeconomic status and the acceleration of urbanisation process in suburban rural areas. PMID- 29027482 TI - Structural genomics of pNDM-BTR harboring In191 and Tn6360, and other bla NDM carrying IncN1 plasmids. AB - AIM: To characterize a conjugative bla NDM-1-carrying plasmid pNDM-BTR from a clinical Escherichia coli isolate. MATERIALS & METHODS: The complete nucleotide sequence of pNDM-BTR was determined using next-generation sequencing technology. Comparative genomic analysis of bla NDM-carrying IncN1 plasmids, including pNDM BTR, was performed, and the antimicrobial resistance phenotypes were determined. RESULTS: pNDM-BTR contained three accessory modules, namely IS26, a novel Tn3 family transposon Tn6360 and the dfrA14 region composed of In191, ecoRII ecoRIImet and DeltaIS1X2. The relatively small IncN1 backbones could integrate massive accessory modules, most of which were integrated at two 'hotspots'. These IncN1 plasmids contained distinct profiles of accessory modules, which included those carrying various resistance genes. CONCLUSION: This study provides a deeper insight into horizontal transfer of resistance genes among IncN1 plasmids. PMID- 29027483 TI - CDK4/6 blockade in breast cancer: current experience and future perspectives. AB - INTRODUCTION: Dysregulated cellular proliferation, one of the hallmarks of cancer, is mediated by aberrant activation of the cell cycle machinery through the biological effects of cyclin-dependent kinases (CDKs). The clinical development of non-selective CDK inhibitors failed due to combined lack of efficacy and excessive toxicity reported by clinical trials across different cancer types. The clinical development of second generation, CDK4/6-selective inhibitors, namely palbociclib, abemaciclib and ribociclib, led to practice changing results in the setting of breast cancer. Areas covered: This review illustrates how CDK4/6-selective inhibitors got approval for the treatment of patients with either newly diagnosed or pretreated advanced hormone receptor positive, HER2-negative breast cancer. Furthermore, data about potential predictive biomarkers, as well as preclinical and preliminary clinical evidence for potential antitumor activity of CDK4/6 inhibition in other breast cancer subtypes is provided. Expert opinion: Future clinical development of CDK4/6 inhibitors in breast cancer will focus on the following aspects: i) optimization of treatment sequencing for patients with advanced disease, ii) early-stage disease, iii) other subtypes of breast cancer in rationally chosen therapeutic combinations and iv) the identification of predictive biomarkers. PMID- 29027484 TI - CYP1A1 expression and organochlorine pesticides level in the etiology of bladder cancer in North Indian population. AB - Urinary bladder cancer (UBC) is one of the most common malignancies worldwide. The etiology of UBC is multifactorial and includes both exogenous and endogenous factors. Exogenous risk factors include exposure to heavy metals, aromatic amines, and environmental pollutants including pesticides such as organochlorine pesticides (OCPs). Environmental factors alone are incapable of directly producing DNA damage and may require activation by phase I metabolizing enzymes like cytochrome P450 in order to become active carcinogen. The present study is designed to study CYP1A1 gene expression, OCP level in cases of UBC, as well as to explore the plausible role of gene-environment interaction in the etiology of UBC among North Indian population. A total of 60 cases with equal number of controls were enrolled under this study, the OCP levels were estimated using gas chromatography, CYP1A1 mRNA expression was quantified by real-time quantitative polymerase chain reaction, and fold change was calculated using the DeltaDeltaCt method. In the present study, the levels of OCP were found to be significantly higher with the upregulation of CYP1A1 mRNA expression among UBC cases as compared to controls. While putting multiple linear regression, it has been observed that there is a significant interaction between the levels of OCPs and DeltaCt value of CYP1A1 gene taken into account hematuria episodes as dependent variable. The study concludes that when there is predisposition of OCPs and upregulation of CYP1A1 gene, then the result will be an increment in hematuria episodes which indicates that gene-environment interaction plays a significant role in the causation of UBC among North Indian population. PMID- 29027485 TI - Concentration-dependent effect of fumonisin B1 on apoptosis in oesophageal cancer cells. AB - The geographical distribution of oesophageal cancer is linked to the exposure of fumonisin B1 (FB1), a mycotoxin produced by fungi that contaminates staple food worldwide. Non-genotoxic carcinogens like FB1 disturb homeostasis through increased cell proliferation or suppression of apoptosis. This study investigated the involvement of FB1 (0-20 MUM) in spindle-shaped N-cadherin (+) CD45 (-) osteoblastic (SNO) cell death. Cell viability and death were assessed using the MTS and Annexin V-Fluos assays, respectively. Caspase activities were determined luminometrically and the comet assay assessed DNA damage. Induction of oxoguanine glycosylase 1 (OGG1) was measured using quantitative Polymerase Chain Reaction (qPCR), while cleaved poly (ADP-ribose) polymerase 1 (PARP-1) and Bax were determined by western blotting. Cell viability and PARP-1 cleavage were not affected by 1.25 MUM FB1, but phosphatidylserine externalization, Bax protein expression, caspase activity, comet tail length and OGG1 transcripts were increased. The reduced cell viability in 10 MUM FB1-treated cells was accompanied by corresponding increases in externalized phosphatidylserine, Bax, caspase-3/7 activity and cleaved PARP-1. The OGG1 transcripts were not significantly increased, but comet tails were increased. Bax, caspase-3/7 activities and cleaved PARP-1 were inhibited at 20 MUM FB1. In addition, the OGG1 transcript levels were decreased ( p < 0.0001) along with comet lengths ( p < 0.0001). This study showed that FB1-induced apoptosis in SNO cells may be caspase-dependent or caspase-independent; the pathway used depends on the exposure concentration. PMID- 29027486 TI - The cancer threshold of toxicological concern (TTC) in relation to foodstuffs and pharmaceuticals: A potentially useful concept compromised by a dubious derivation. AB - The cancer threshold of toxicological concern (TTC) as determined by Kroes et al. in 2004 (0.15 ug/day and 1.5 ug/day at risk levels of 1 in 106 or 105, respectively) has been uncritically employed as a key metric in multiple regulatory guidance documents. There are numerous concerns regarding transparency and the highly conservative methodology in relation to its derivation; moreover, no formal confirmation has been undertaken by any regulatory body prior to its adoption. A recent joint report from the European Food Safety Authority and World Health Organization follows this trend, largely replicating previous conclusions and downplaying the need for a re-assessment. This view is challenged by Boobis et al. who confirm concerns regarding lack of transparency and stress that several of the assumptions and approaches used previously have been superseded by advances in knowledge; they recommend as a first step construction of a new dataset derived from the Carcinogenic Potency Database focusing on mutagenic DNA reactive rodent carcinogens and a critical assessment of the relevance and reliability of carcinogenicity data. This type of approach is supported with two key exceptions: inclusion of data from the ToxTracker assay which provides a direct readout of DNA reactivity, and use of appropriate epidemiological data on acrylamide (AA) to determine a benchmark for human exposure to a typical DNA reactive rodent carcinogen. It is concluded that a robust re-evaluation using an appropriate dataset and methodology is urgently needed to ensure the integrity of the cancer TTC before it is employed in its present form even more widely. PMID- 29027488 TI - Global Health Promotion et la recherche interventionnelle en sante des populations. PMID- 29027489 TI - Resumes. PMID- 29027490 TI - Resumenes. PMID- 29027487 TI - Effect of tauroursodeoxycholic acid on PUFA levels and inflammation in an animal and cell model of hepatic endoplasmic reticulum stress. AB - The aim of this study was to evaluate hepatic polyunsaturated fatty acids (PUFAs) and inflammatory response in an animal and cell model of endoplasmic reticulum (ER) stress. Rats were divided into control, tunicamycin (TM)-treated, and TM + tauroursodeoxycholic acid (TUDCA)-treated groups. Hepatic ER stress was induced by TM and the ER stress inhibitor TUDCA was injected 30 min before induction of ER stress. Liver THLE-3 cells were treated with TM and TUDCA was administered in advance to decrease cytotoxic effects. Necroinflammation was evaluated in liver sections, while cell viability was determined using a 3-(4,5-dimethylthiazol-2 yl)-2,5-diphenyltetrazolium bromide assay kit. ER stress was confirmed by immunofluorescence and Western blot analysis of C/EBP-homologous protein and 78 kDa glucose-regulated protein. Arachidonic acid (C20:4n-6), dihomo-gamma linolenic acid (C20:3n-6), eicosapentaenoic acid (C20:5n-3), and docosahexaenoic acid (C22:6n-3) in liver tissue and THLE-3 cells were determined by liquid chromatography tandem mass spectrometry (LC-MS/MS). Phospholipase A2 (PLA2), cyclooxygenase (COX), and prostaglandin E2 (PGE2) were measured in tissue and cell samples. Hepatic ER stress was accomplished by TM and was alleviated by TUDCA. TM treatment significantly decreased PUFAs in both liver and THLE-3 cells compared to controls. PLA2, COX, and PGE2 levels were significantly increased in TM-treated rats and THLE-3 cells compared to controls. TUDCA leads to a partial restoration of liver PUFA levels and decreased PLA2, COX, and PGE2. This study reports decreased PUFA levels in ER stress and supports the use of omega-3 fatty acids in liver diseases demonstrating ER stress. PMID- 29027492 TI - Global Health Promotion y la investigacion sobre las intervenciones de salud de la poblacion. PMID- 29027493 TI - Global health promotion and population health intervention research. PMID- 29027494 TI - Discriminating Non-Native Segmental Length Contrasts Under Increased Task Demands. AB - The present study examines how vulnerable perception of second language prosody is to increased task demands. German learners of Japanese, German non-learners without exposure to Japanese, and Japanese native listeners were tested in their ability to discriminate consonant length contrasts (compared to vowel length contrasts that served as a control condition). Memory load was increased by a longer inter-stimulus interval (2500 ms compared to 300 ms) and the demand on attention control was enhanced through the addition of the acoustic complexity of the stimuli (i.e., through a task-irrelevant pitch fall that occurred simultaneously with a consonant length contrast). The results showed high discrimination abilities, in all groups, when task demands were lowest. With increased task demands, only non-native listeners' discrimination abilities decreased: non-learners were strongly affected by both increased memory load and higher demand on attention control, while learners were only affected by the latter. The task-irrelevant acoustic complexity of the stimuli had a stronger impact on performance than increased memory load did. The findings suggest that second language learners established novel phonological representations but that the ability to use them could only be applied in the absence of distracting acoustic information. The non-native listeners' reduced sensitivity under increased task demands explains why even advanced learners still face difficulties in daily listening situations with numerous distractions. PMID- 29027495 TI - Monitoring and managing antibiotic resistance in refugee children. AB - INTRODUCTION: The past decade the Middle East and Southeastern Europe have witnessed an enormous movement of refugees due to the Syrian war and conflicts in Asia and Africa. Although carriage of and infections with multi-drug resistant (MDR) pathogens in refugees have been reported, pediatric data are scarce. Areas covered: MDR bacterial carriage and infections, and MDR-tuberculosis (TB) in refugee children from 2010. Expert commentary: High MDR carriage rates in refugee children are attributed to high pre-civil war MDR rates, war-damaged infrastructure and healthcare systems, and poor hygiene conditions. Currently there are no international guidelines about MDR screening in refugee children. Given the medical importance of MDRs, challenging therapeutics and risk of importation in non/low-endemic countries, we recommend routine screening and contact isolation upon hospitalization of refugees. TB, including MDR-TB, is highly-endemic in many Asian and African countries, however, current data in refugee children are lacking. TB Screening in refugees is widely implemented but there is no consensus on methods and target populations. Coordinated TB detection and treatment, use of rapid molecular tests and drug-susceptibility testing, better access to healthcare, cross border TB care collaboration, and protection from deportation while on treatment should be integrated parts of TB control and prevention. PMID- 29027496 TI - Optimizing usability and signal capture: a proactive risk assessment for the implementation of a wireless vital sign monitoring system. AB - Wearable vital sign monitors are a promising step towards optimal patient surveillance, providing continuous data to allow for early detection and treatment of patient deterioration. However, as wearable monitors become more widely adopted in healthcare, there is a corresponding need to carefully design the implementation of these tools to promote their integration into clinical workflows and defend against potential misuse and patient harm. Prior to the roll out of these monitors, our multidisciplinary team of clinicians, clinical engineers, information technologists and research investigators conducted a modified Healthcare Failure Mode and Effect Analysis (HFMEA), a proactive evaluation of potential problems which could be encountered in the use of a wireless vital signs monitoring system. This evaluation was accomplished by focussing on the identification of procedures and actions that would be required during the devices' regular usage, as well as the implementation of the system as a comprehensive process. Using this method, the team identified challenges that would arise throughout the lifecycle of the device and developed recommendations to address them. This proactive risk assessment can guide the implementation of wearable patient monitors, optimising the use of innovative health information technology. PMID- 29027497 TI - Comparative evaluation of treatment patterns and healthcare utilization of newly diagnosed rheumatoid arthritis patients by anti-cyclic citrullinated peptide antibody status. AB - BACKGROUND: Anti-cyclic citrullinated peptide (CCP) antibody positivity is an established diagnostic factor for severe disease activity and joint damage and a prognostic factor for aggressive disease in rheumatoid arthritis (RA). OBJECTIVE: To compare RA-related treatment, healthcare utilization, and joint erosion between anti-CCP-positive and anti-CCP-negative RA patients. METHODS: Newly diagnosed RA patients were identified from the Henry Ford Health System database between January 1, 2009 and December 31, 2014; the date of the first RA diagnosis within the study period was the index date. Baseline anti-CCP test was used to categorize patients as anti-CCP-positive or anti-CCP-negative, and outcomes were evaluated in the 6 months post-index. RESULTS: There were 217 anti-CCP-positive and 191 anti-CCP-negative RA patients included in the study. A higher proportion of anti-CCP-positive patients were initiated on RA treatment than anti-CCP negative patients (70.5% vs 23.0%; p < .0001). More anti-CCP-positive patients received methotrexate (73.2% vs 56.8%; p = .0374), while more anti-CCP-negative patients received hydroxychloroquine (31.8% vs 13.1%; p = .0037) in first-line therapy. A higher proportion of anti-CCP-negative patients were tested for rheumatoid factor (RF) and erythrocyte sedimentation rate (ESR). Of those tested, there were more positive test results in the anti-CCP-positive cohort compared to the anti-CCP-negative cohort (RF: 84.4% vs 18.2%, p < .0001; C-reactive protein [CRP]: 69.7% vs 48.3%, p = .0008; and ESR: 89.5% vs 53.9%, p < .0001). Outpatient utilization predominated, with more anti-CCP-positive patients having any outpatient physician office visit (96.3% vs 77.5%, p < .0001) and a higher mean number of visits (5.3 vs 2.5, p < .0001) than anti-CCP-negative patients. Among anti-CCP-positive (n = 113) and anti-CCP-negative (n = 58) patients with imaging results, more anti-CCP-positive patients had joint erosion compared to anti-CCP negative patients (18.6% vs 8.6%; p = .0858); however, statistical significance was not reached. CONCLUSION: RA patients with positive anti-CCP antibodies had higher degrees of inflammation and disease activity as indicated by laboratory results, which likely contributed to their higher rates of healthcare utilization, joint erosion, and proportions of RA treatment. PMID- 29027499 TI - Non-infectious Fever After Acute Spinal Cord Injury in the Intensive Care Unit. AB - Objective The aim of the present study is to evaluate the frequency, etiology, risk factors and clinical outcomes in acute traumatic SCI patients who develop fever and to evaluate the relationship between fever and mortality. Design Retrospective data were collected between January 2007 and August 2016 from patients diagnosed with persistent fever from SCI cases observed in the ICU. Participants Among 5370 intensive care patients, 435 SCI patients were evaluated for the presence of fever. A total of 52 patients meeting the criteria were evaluated. Outcome measures Fever characteristics were evaluated by dividing the patients into two groups: infectious (group-1) and non-infectious (group-2) fever. Demographic and clinical data, ICU and hospital stay, and mortality were evaluated. Results In the patients with noninfectious fever, mortality was significantly higher compared to the group with infectious fever (P < 0.001). Of 52 acute SCI cases, 25 (48.1%) had neurogenic fever that did not respond to treatment in intensive care follow-up, and 22 (88%) of these patients died. Maximal fever was 39.10 +/- 0.64 degrees C in Group-1 and 40.22 +/- 1.10 degrees C in Group-2 (P = 0.001). There was a significant difference in the duration of ICU stay and hospital stay between the two groups (P = 0.005, P = 0.001, respectively), while there was no difference in the duration of mechanical ventilation between the groups (P = 0.544). Conclusion This study demonstrates that patients diagnosed with neurogenic fever following SCI had higher average body temperature and higher rates of mortality compared to patients diagnosed with infectious fever. PMID- 29027498 TI - Relationships between presenteeism and work-related musculoskeletal disorders among physical therapists in the Republic of Korea. AB - This study investigated the relationship between presenteeism and work-related musculoskeletal disorders (WMSDs) among physical therapists (PTs) in the Republic of Korea. Questionnaires were given to 600 PTs in the Republic of Korea. General and occupational characteristics and the prevalence of presenteeism and absenteeism were self-reported on the questionnaire. Stepwise regression analyses were used to evaluate the effects of presenteeism and other variables on general and occupational characteristics. Of the 490 PTs who responded, 399 (81.4%) reported at least one WMSD. There was a low incidence rate of absenteeism, but work impairment scores indicate there was a high incidence of presenteeism. In the stepwise regression analyses, the incidence of WMSDs was highest in cases of presenteeism. The results of this study demonstrate that there is a high incidence rate of WMSDs in Republic of Korean PTs, that WMSDs are related to presenteeism and that PTs demonstrate high presenteeism and low absenteeism. PMID- 29027500 TI - Novel steroidal saponins from Dioscorea esculenta (Togedokoro). AB - Fifteen steroidal saponins 1-15, which include 4 furostanol glycosides 1-3 and 15, and 11 spirostanol glycosides 4-14, were isolated from the tubers and leaves of lesser yam (Dioscorea esculenta, Togedokoro). Their structures were identified by nuclear magnetic resonance and liquid chromatography mass spectroscopy. Four steroidal saponins 9, 11, 14, and 15 were found to be novel compounds. PMID- 29027501 TI - Anticancer activity of new imidazole derivative of 1R,2R-diaminocyclohexane palladium and platinum complexes as DNA fluorescent probes. AB - The aim of this study was synthesis of two new water-soluble fluorescent palladium and platinum complexes with formulas of [Pt(DACH)(FIP)](NO3)2 and [Pd(DACH)(FIP)](NO3)2, respectively, where FIP is 2-(furan-2-yl)-1H-imidazo[4,5 f][1,10] phenanthroline and DACH is 1R,2R-diaminocyclohexane. Fluorescence spectroscopy, circular dichroism (CD), thermal denaturation measurement, ionic strength, and kinetic study displayed groove binding of Pt complex on DNA, while due to binding of Pd complex, B form of DNA convert to Z form. Due to electrostatic interaction of Pd complex with DNA, the DNA form is converted and it provides enough space for Pd complex to insert between base stacking of DNA. UV-vis study shows two complexes could denature the DNA at low concentrations in exothermic process and Pt complex is more active than Pd complex. Finally, the anticancer and growth inhibitory activities of synthesized complexes were investigated against human colon cancer cell line HCT116 after incubation time of 24 h using MTT assay and higher activity was observed for the platinum complex. Interaction of the two metal derivative complexes was studied by molecular docking and molecular dynamics simulation. The results showed that Pt complexes have higher negative docking energy and higher tendency for interaction with DNA, and exert more structural change on DNA. PMID- 29027502 TI - Development and validation of the self-administered Falun health instrument (SAFHI) using data from health promoted workplaces in Sweden. AB - AIM: The aim of this study was to develop and to validate the self-administered Falun health instrument. An additional aim was to test its applicability in measuring people's lifestyles linked to health. METHODS: In 2002, an instrument was constructed containing questions regarding the hazardous use of alcohol, tobacco, unhealthy diets and insufficient physical activity. A pilot study using the instrument was assessed between 2002 and 2006. In Sweden, it was further expanded and tested during the years 2004-2014 among a total of 1295 people. RESULTS: Face validity was evaluated among colleagues and experts for clarity and completeness resulting in minor adjustments of some questions. With the test retest method, the self-administered Falun health questionnaire showed a positive and high reproducibility and high compliance. Cronbach's alpha showed a high level of consistency (average 0.86). Factor analysis demonstrated the choice of questions correlated highly to the measured lifestyle. CONCLUSIONS: This study showed that the self-administered Falun health questionnaire is a valid and reliable instrument, useful for detecting individuals at risk of developing diseases that are related to individual choice of lifestyle. PMID- 29027503 TI - Antioxidant effect of aromatic volatiles emitted by Lavandula dentata, Mentha spicata, and M. piperita on mouse subjected to low oxygen condition. AB - This study aims to investigate the antioxidant effect of aromatic volatiles of three common aromatic plants, Lavandula dentata, Mentha spicata, and M. piperita. In this study, kunming mice subjected to low oxygen condition were treated with the volatiles emitted from these aromatic plants through inhalation administration. Then the blood cell counts, and the activities and gene expressions of antioxidant enzymes in different tissues were tested. The results showed that low oxygen increased the counts of red blood cells, white blood cells, and blood platelets of mice, and aromatic volatiles decreased their counts. Exposure to aromatic volatiles resulted in decreases in the malonaldehyde contents, and increases in the activities and gene expressions of superoxide dismutase, glutathione peroxidase, and catalase in different tissues under low oxygen. In addition, as the main component of aromatic volatiles, eucalyptol was the potential source that imparted positive antioxidant effect. PMID- 29027504 TI - Pharmacokinetic considerations for use of artemisinin-based combination therapies against falciparum malaria in different ethnic populations. AB - INTRODUCTION: Artemisinin-based combination therapy (ACT) is used extensively as first-line treatment for uncomplicated falciparum malaria. There has been no rigorous assessment of the potential for racial/ethnic differences in the pharmacokinetic properties of ACTs that might influence their efficacy. Areas covered: A comprehensive literature search was performed that identified 72 publications in which the geographical origin of the patients could be ascertained and the key pharmacokinetic parameters maximum drug concentration (Cmax), area under the plasma concentration-time curve (AUC) and elimination half life (t1/2beta) were available for one or more of the five WHO-recommended ACTs (artemether-lumefantrine, artesunate-amodiaquine, artesunate-mefloquine, dihydroartemisinin-piperaquine and artesunate-sulfadoxine-pyrimethamine). Comparisons of each of the three pharmacokinetic parameters of interest were made by drug (artemisinin derivative and long half-life partner), race/ethnicity (African, Asian, Caucasian, Melanesian, South American) and patient categories based on age and pregnancy status. Expert opinion: The review identified no evidence of a clinically significant influence of race/ethnicity on the pharmacokinetic properties of the nine component drugs in the five ACTs currently recommended by WHO for first-line treatment of uncomplicated falciparum malaria. This provides reassurance for health workers in malaria-endemic regions that ACTs can be given in recommended doses with the expectation of adequate blood concentrations regardless of race/ethnicity. PMID- 29027505 TI - Impact of non-uniform correlation structure on sample size and power in multiple period cluster randomised trials. AB - Stepped wedge and cluster randomised crossover trials are examples of cluster randomised designs conducted over multiple time periods that are being used with increasing frequency in health research. Recent systematic reviews of both of these designs indicate that the within-cluster correlation is typically taken account of in the analysis of data using a random intercept mixed model, implying a constant correlation between any two individuals in the same cluster no matter how far apart in time they are measured: within-period and between-period intra cluster correlations are assumed to be identical. Recently proposed extensions allow the within- and between-period intra-cluster correlations to differ, although these methods require that all between-period intra-cluster correlations are identical, which may not be appropriate in all situations. Motivated by a proposed intensive care cluster randomised trial, we propose an alternative correlation structure for repeated cross-sectional multiple-period cluster randomised trials in which the between-period intra-cluster correlation is allowed to decay depending on the distance between measurements. We present results for the variance of treatment effect estimators for varying amounts of decay, investigating the consequences of the variation in decay on sample size planning for stepped wedge, cluster crossover and multiple-period parallel-arm cluster randomised trials. We also investigate the impact of assuming constant between-period intra-cluster correlations instead of decaying between-period intra-cluster correlations. Our results indicate that in certain design configurations, including the one corresponding to the proposed trial, a correlation decay can have an important impact on variances of treatment effect estimators, and hence on sample size and power. An R Shiny app allows readers to interactively explore the impact of correlation decay. PMID- 29027506 TI - Coprolalia in aphasic patients with stroke: a longitudinal observation from the BLAS2T database. AB - The BLAS2T (bilingual aphasia in stroke-study team) initiative has been a multi center attempt to investigate longitudinal changes in language function in a cohort of stroke subjects. This report discusses linguistic performance in four cases from the BLAS2T database who demonstrated coprolalia as an irresistible urge to say obscene words. Coprolalia was found to partly resolve in a 30-day follow-up in three cases. Recognition of coprolalia and language recovery patterns in bilingual aphasic patients with stroke would potentially lead to their even better individualized care and neurolinguistic/cognitive rehabilitation. PMID- 29027508 TI - Practice-Based Small Group Learning (PBSGL) in Scotland - a survey of registered pharmacy staff and general practice nurses. AB - INTRODUCTION: Practice-based small group learning (PBSGL) has grown in primary healthcare in Scotland, and is used regularly by 2244 GPs and GP specialist trainees. The programme has been available to general practice nurses (GPNs) and pharmacy staff since uni-professional and inter-professional pilot studies were considered successful. Growth has been slower compared to GPs uptake but has now reached significant levels. It seemed timely to evaluate the use of the programme by these professions. METHOD: A questionnaire previously used by GPs was adapted. It consisted of 16 questions and two free text questions asking respondents what had motivated them to join PBSGL, and what encouraged them to maintain membership. The questionnaire was converted into an electronic format and emailed to pharmacy and GPNs in Scotland who were PBSGL members. RESULTS: A range of pharmacy staff and GPNs were involved in PBSGL and the mean number of modules studied by pharmacy staff was 3.93 and 4.48 by GPNs in the last year. A high percentage were likely or very likely to continue with membership (pharmacy staff - 95.6%, GPNs - 90.1%). The dominant reasons to join and stay in the programme related to learning issues: meeting learning needs, learning from peers and professional socialisation. PMID- 29027507 TI - Development of an mHealth trauma registry in the Middle East using an implementation science framework. AB - BACKGROUND: Trauma registries (TRs) play a vital role in the assessment of trauma care, but are often underutilized in countries with a high burden of injuries. OBJECTIVES: We investigated whether information and communications technology (ICT) such as mobile health (mHealth) could enable the design of a tablet-based application for healthcare professionals. This would be used to inform trauma care and acquire surveillance data for injury control and prevention in Oman. This paper focuses on documenting the implementation process in a healthcare setting. METHODS: The study was conducted using an ICT implementation framework consisting of multistep assessment, development and pilot testing of an electronic tablet-based TR. The pilot study was conducted at two large hospitals in Oman, followed by detailed evaluation of the process, system and impact of implementation. RESULTS: The registry was designed to provide comprehensive information on each trauma case from the location of injury until hospital discharge, with variables organized to cover 11 domains of demographic and clinical information. The pilot study demonstrated that the registry was user friendly and reliable, and the implementation framework was useful in planning for the Omani hospital setting. Data collection by trained and dedicated nurses proved to be more feasible, efficient and reliable than real-time data entry by care providers. CONCLUSIONS: The initial results show the promising potential of a user-friendly, comprehensive electronic TR through the use of mHealth tools. The pilot test in two hospitals indicates that the registry can be used to create a multicenter trauma database. PMID- 29027509 TI - Multiply adjusted comparisons: A meta-analysis method to compare single-arm clinical-trial data to literature results regarding a competitor. AB - Prospective randomized controlled trials are difficult to obtain if a promising new therapy has to be tested against seemingly obsolete alternatives. One method to address this problem is to compare the results of (multicentre) trials to literature results. However, previous treatment-era changes and population dependent results complicate objective comparisons. The presented approach describes a method to objectify such comparisons in cases in which individual raw data regarding a new therapy have to be compared to summary results regarding a conventional alternative published in the literature. The chosen example is the introduction of bovine neck veins as a substitute for dysfunctional human pulmonary valves, and the conventional therapeutic alternative is pulmonary artery homografts. Literature research, subgroup identification, filtering, endpoint remodelling, weighting and, if necessary, confidence-limit calculation yield adjusted comparisons. These individual comparisons are then aggregated, first by article and then over several articles (similar to meta-analyses), resulting in a differentiated panel of answers (Multiply Adjusted Comparisons). In situations in which extensive raw data regarding a new therapeutic alternative but no randomized controlled trials and no raw data from previous studies using the conventional therapeutic alternative are available, the proposed method identifies the best evidence and is by far superior to unadjusted direct comparisons or gut feelings. PMID- 29027510 TI - Comparing the efficacy of topical hydroquinone 2% versus intradermal tranexamic acid microinjections in treating melasma: a split-face controlled trial. AB - INTRODUCTION: Melasma is a benign, acquired and chronic hypermelanosis. Topical hydroquinone (HQ) is a conventional choice to treat melasma. Tranexamic acid (TA) is a relatively new brightening agent that interferes with keratinocyte melanocyte interactions. The aim of the present study was to compare the efficacy and safety of TA intradermal injections with HQ in treating melasma. MATERIALS AND METHODS: In this split-face controlled trial, 37 patients were randomized to receive three monthly sessions of TA intradermal injections either on the right or the left side of their face and topical HQ once a night for three months on the other side. Melanin and erythema were measured for each side of the face at the baseline and at the end of each month. RESULTS: A reduction in melanin value was observed for TA and HQ separately (p value <.001). Monthly TA injection was better than daily HQ in reducing the melanin value during the first four weeks (p value =.013); but after 20 weeks, the overall changes was not different between the two groups (p value =.17). CONCLUSION: Monthly TA intradermal injections can be an effective treatment for melasma. Further studies are required to support our results. PMID- 29027512 TI - Challenges associated with missing data in electronic health records: A case study of a risk prediction model for diabetes using data from Slovenian primary care. AB - The increasing availability of data stored in electronic health records brings substantial opportunities for advancing patient care and population health. This is, however, fundamentally dependant on the completeness and quality of data in these electronic health records. We sought to use electronic health record data to populate a risk prediction model for identifying patients with undiagnosed type 2 diabetes mellitus. We, however, found substantial (up to 90%) amounts of missing data in some healthcare centres. Attempts at imputing for these missing data or using reduced dataset by removing incomplete records resulted in a major deterioration in the performance of the prediction model. This case study illustrates the substantial wasted opportunities resulting from incomplete records by simulation of missing and incomplete records in predictive modelling process. Government and professional bodies need to prioritise efforts to address these data shortcomings in order to ensure that electronic health record data are maximally exploited for patient and population benefit. PMID- 29027513 TI - [Sharing patient information with neighbourhood social support teams; a legal perspective]. AB - The beginning of 2015 saw the transition of responsibility for social care, youth care and participation of vulnerable groups in the Netherlands from the government to local authorities. A large majority of municipalities chose to work with neighbourhood social support teams. Their main purpose is to offer integrated care to citizens. Integrated care requires information-sharing between organisations and (healthcare) professionals. Are medical practitioners authorized to share patient information with neighbourhood social support teams? Legal analysis shows that a medical practitioner may play one of the following three roles when sharing information with such teams: the role of referrer, the role of expert or the role of informant. Each role comes with specific rules to protect patient confidentiality and safeguard patient privacy. Being aware of one's role and acting accordingly may positively influence integrated care. PMID- 29027511 TI - Evaluation of a Frequency-Lowering Algorithm for Adults With High-Frequency Hearing Loss. AB - The objective was to determine the effects of a frequency-lowering algorithm (frequency composition, Fcomp) on consonant identification, word-final /s, z/ detection, the intelligibility of sentences in noise, and subjective benefit, for people with high-frequency hearing loss, including people with dead regions (DRs) in the cochlea. A single-blind randomized crossover design was used. Performance with Bernafon Acriva 9 hearing aids was compared with Fcomp off and Fcomp on. Participants wore the hearing aids in each condition in a counterbalanced order. Data were collected after at least 8 weeks of experience with a condition. Outcome measures were audibility, scores from the speech perception tests, and scores from a questionnaire comparing self-perceived hearing ability with Fcomp off and Fcomp on. Ten adults with mild to severe high-frequency hearing loss (seven with extensive DRs, one with patchy or restricted DRs, and two with no DR) were tested. Fcomp improved the audibility of high-frequency sounds for 6 out of 10 participants. There was no overall effect of Fcomp on consonant identification, but the pattern of consonant confusions varied across conditions and participants. For word-final /s, z/ detection, performance was significantly better with Fcomp on than with Fcomp off. Questionnaire scores showed no differences between conditions. In summary, Fcomp improved word-final /s, z/ detection. No benefit was found for the other measures. PMID- 29027514 TI - [A male with intra-abdominal nodules on a CT scan]. AB - A 38-year-old male with a history of laparoscopic cholecystectomy and successfully treated Hodgkin lymphoma had a follow-up CT-scan which showed four nodular densities behind the bladder. Additional investigations demonstrated spilled gallstones instead of a relapse of Hodgkin lymphoma. Spillage of gallstones is relatively common and may mimic malignant diseases. PMID- 29027515 TI - [A boy with a white striped knee on a radiograph]. AB - A 10-year-old boy presented at the radiology department with pain in the right knee. Radiographs of the knee revealed dens metaphyseal bands and subchondral epiphyseal sclerosis as a result of periodic bisphosphonate administration for the treatment of Legg-Calve-Perthes disease three years ago. PMID- 29027516 TI - [Chronic thromboembolic pulmonary hypertension: recognition, diagnosis and treatment]. AB - - Chronic thromboembolic pulmonary hypertension (CTEPH), characterised by pulmonary hypertension and persistent perfusion defects despite adequate anticoagulation, causes significant morbidity and mortality.- Persistent dyspnoea after acute pulmonary embolism is frequent and an indication for additional diagnostics. Only a minority of these patients develop CTEPH.- Echocardiography and perfusion scintigraphy are the cornerstone of diagnostics when suspecting CTEPH. Right-heart catheterisation and pulmonary angiography should confirm the diagnosis.- The diagnostic phase is preferably carried out in an expert centre in order to optimise the diagnosis and choose the optimal treatment for each individual patient.- Treatment of patients with CTEPH is a multidisciplinary team effort.- Pulmonary endarterectomy is the only potentially curative treatment; perioperative mortality is less than 5% in experienced centres. Inoperable patients can be treated with medication that specifically targets pulmonary arterial hypertension, but a survival benefit has not yet been shown for this medication.- Balloon pulmonary angioplasty has recently become available in the Netherlands as a treatment option, but the exact role of this new technique in the treatment of patients with CTEPH still needs to be investigated. PMID- 29027517 TI - [Unexpected symptoms of monoclonal gammopathy]. AB - Monoclonal gammopathy of undetermined significance (MGUS) is a common haematological disorder characterized by the presence of a monoclonal protein (M protein). MGUS is considered an asymptomatic 'innocent' pre-malignant precursor condition of - mostly - multiple myeloma, without indication for treatment. We present three cases illustrating that MGUS can lead to serious problems. The first patient, a 51-year-old female, presented with polyneuropathy due to anti MAG antibodies related to IgM MGUS. The second patient, a 37-year-old female, presented with proteinuria due to immunotactoid glomerulopathy caused by renal monoclonal IgG deposition associated with MGUS. The third patient, a 55-year-old female, presented with severe bleeding caused by an aspecific inhibitor of the coagulation cascade as part of IgG MGUS. In conclusion, in addition to the risk of progression to an overt haematological malignancy, MGUS can lead to severe symptoms and significant organ damage by auto-antibody activity or pathological accumulation in tissues of its toxic M-protein. PMID- 29027518 TI - [Influenza vaccination of patients with solid tumours during chemotherapy: efficacy and safety]. AB - - Adult patients with solid tumours receiving chemotherapy have reduced immunity against infections and are at increased risk of influenza infection and its complications. However, many of said patients are not vaccinated for influenza.- Limited observational research in this patient group has given some indication of the protective effects of the influenza vaccine on clinical outcome measures.- Serological studies have shown that the antibody response following influenza vaccination is often less pronounced in patients with solid tumours compared to healthy individuals. Nonetheless, in most cases a timely protective antibody response can be achieved.- The inactivated influenza vaccine is safe in immunosuppressed patients, irrespective of the moment at which it is administered. Side-effects are similar, both in nature and number, to those seen in healthy individuals.- Influenza vaccination can be offered to all adult patients with solid tumours, preferably before chemotherapy is commenced. Vaccination during chemotherapy, however, usually also generates sufficient vaccination response and can reduce the risk of influenza-related complications. Therefore, chemotherapy should not preclude patients from being administered the influenza vaccine. PMID- 29027519 TI - Transmission in the Origins of Bacterial Diversity, From Ecotypes to Phyla. AB - Any two lineages, no matter how distant they are now, began their divergence as one population splitting into two lineages that could coexist indefinitely. The rate of origin of higher-level taxa is therefore the product of the rate of speciation times the probability that two new species coexist long enough to reach a particular level of divergence. Here I have explored these two parameters of disparification in bacteria. Owing to low recombination rates, sexual isolation is not a necessary milestone of bacterial speciation. Rather, irreversible and indefinite divergence begins with ecological diversification, that is, transmission of a bacterial lineage to a new ecological niche, possibly to a new microhabitat but at least to new resources. Several algorithms use sequence data from a taxon of focus to identify phylogenetic groups likely to bear the dynamic properties of species. Identifying these newly divergent lineages allows us to characterize the genetic bases of speciation, as well as the ecological dimensions upon which new species diverge. Speciation appears to be least frequent when a given lineage has few new resources it can adopt, as exemplified by photoautotrophs, C1 heterotrophs, and obligately intracellular pathogens; speciation is likely most rapid for generalist heterotrophs. The genetic basis of ecological divergence may determine whether ecological divergence is irreversible and whether lineages will diverge indefinitely into the future. Long-term coexistence is most likely when newly divergent lineages utilize at least some resources not shared with the other and when the resources themselves will coexist into the remote future. PMID- 29027521 TI - Wing and body kinematics measurement and force analyses of landing in fruit flies. AB - In this paper, we analyzed the body and wing kinematics and mechanics in fruit flies' landings on a vertical pole. By high-speed video techniques and CFD method, we exhibited the detailed process of landing as follows. A fruit fly first decelerates and enters a near-hover state approximately 25 mm away from the vertical pole, then starts approaching the pole in acceleration till one of its front-legs touches the pole (touchdown). Just before touchdown, the fly's acceleration is around 6 ms-2; at touchdown, it experiences an almost instant deceleration of several g (gravitational acceleration), approximately all of which results from the leg force. After touchdown, the fly's acceleration fluctuates about zero, and the acceleration is also mainly due to the leg force; meanwhile the aerodynamic force decreases to zero and the fly's weight is gradually shifted to legs. In this period, the fly's legs act as a compression spring, and the fly can be regarded as a legs-body oscillator. In conclusion, during landing, the fly keeps accelerating towards the target and 'impinges' on the target on its legs, and the leg force, not aerodynamic force, is used to stop the insect's motion. PMID- 29027520 TI - Further evidence associating IgG1, but not IgG2, with susceptibility to canine visceral leishmaniasis caused by Leishmania (L.) infantum chagasi-infection. AB - We present here a cross-sectional study analyzing the IgG1 and IgG2 immune responses to natural canine Leishmania (L.) infantum chagasi-infection and their relationships with delayed-type hypersensitivity (DTH) in 50 mongrel dogs with previous positive serodiagnoses (IFAT-IgG) (56% with subclinical status [= apparently healthy] and 44% clinically sick), living in endemic areas for visceral leishmaniasis in the Brazilian Amazon. IgG1 and IgG2 responses were measured using commercial polyclonal antibodies in ELISA, while DTH was elicited by intradermal skin test using cultured promastigotes L. (L.) i. chagasi-antigen. Data analyses used Chi-square and Pearson's r coefficient (95% confidence interval). Regarding DTH and the clinical statuses of dogs, it was noted that 100% of the animals showing positive DTH (n = 8) were from the subclinical group, while 100% showing negative DTH were from the clinically sick group; higher IgG2 than IgG1 responses were observed in both clinical groups. However, when this comparison was made between the subclinical and sick groups, higher IgG1 responses were noted in the dogs from the sick rather than the subclinical group, while no differences were noted between the IgG2 responses in the dogs from both clinical groups. Additionally, we found lower IgG1 responses in dogs from the subclinical group showing positive DTH than in the dogs from the subclinical or sick groups with negative DTH; no differences were found between the IgG2 responses of these two clinical groups. These findings suggest that the IgG1, but not the IgG2, response is associated with susceptibility to canine visceral leishmaniasis (CVL). PMID- 29027522 TI - [Morphochemical changes in the substantia nigra cellular structures in Parkinson's disease]. AB - AIM: to clarify the features of morphochemical changes in the substantia nigra cellular structures in Parkinson's disease. MATERIAL AND METHODS: The structural characteristics of the substantia nigra were studied microscopically and quantified using computer morphometric methods at brain autopsies of individuals with Parkinson's disease who had died from intercurrent diseases and those who had no evidence of neurological disorders in their history (a control group). RESULTS: This investigation could clarify the features of morphochemical changes in both the neural network structures and the glial populations of the substantia nigra in Parkinson's disease. The number of neurons containing tyrosine hydroxylase (a marker of dopamine neurons) in the compact part of the substantia nigra (a ventral region) was smaller and the density distribution of Lewy bodies was higher in the patients with Parkinson's disease than in the control group. The accumulation of iron (II) compounds in the cellular elements and neuropile and the increased expression of glial fibrillary acidic protein in Parkinson's disease were more pronounced than those in the controls. CONCLUSION: Postmortem diagnosis in Parkinson's disease should be based on a full description of a set of neuronal and glial morphochemical and structural changes in the substantia nigra rather than on the identification of cellular markers for the neurodegenerative process. PMID- 29027523 TI - [Role of tenascin S in triple-negative breast cancer]. AB - AIM: to establish a relationship between the main markers tumor stem cells (TSCs), CD44, and CD24, the level of tenascin C production, and chemoresistance in triple-negative breast cancer (BC). SUBJECTS AND METHODS: Thirty biopsy specimens from triple-negative BC patients who had conventionally received preoperative chemotherapy followed by surgery were selected in the investigation. All the selected patients were conventionally assigned to neoadjuvant polychemotherapy (PCT) with paclitaxel and carboplatin. The surgical specimens were analyzed in relation to the degree of a tumor morphological response to PCT. The magnitude of the health-promoting effect of neoadjuvant therapy was evaluated according to the residual cancer burden (RCB) system using an on-line calculator; RCB was categorized into classes (from RCB-0 to RCB-III). The markers CD44, SD24, and tenascin C were identified by the standard immunoperoxidase method in the primary biopsies. RESULTS: Varying morphological responses of triple-negative breast cancer to PCT were revealed, which showed resistance in 60% of the cases. The chemoresistance found in most (87%) cases coincided with the identification of the CD44+/CD24low/- profile. The detection of the higher production of the extracellular matrix tenascin C participating in the formation of the TSC niche fully combined with the CD44+/CD24low/- phenotype; while the maximum response to tenascin C was noted in the cases differing in not only a lack of responses to PCTs, but also in the most aggressive course in conjunction with metastatic disease. CONCLUSION: Immunohistochemical analysis shows that the unique association between the CD44+/CD24low/- phenotype and the pronounced production of tenascin C may have a prognostic potential, prospectively indicating the inefficiency of neoadjuvant PCT, in particular that with platinum derivatives, which is used for the standard treatment of triple-negative BC. Taking into account the role of tenascin C in invasion, metastasis, and chemoresistance, it per se may be considered as a promising target for the targeted and/or combined therapy of triple-negative BC. PMID- 29027524 TI - [The morphological and immunohistochemical characteristics of stratified mucin producing intraepithelial lesion]. AB - : Stratified mucin-producing intraepithelial lesion (SMILE) is a rare premalignant cervical lesion that combines the structural features of cervical intraepithelial neoplasia (CIN) and endocervical adenocarcinoma in situ (AIS). AIM: to analyze archival materials for the detection of SMILE and its subsequent morphological and immunohistochemical characterization. MATERIAL AND METHODS: Cervical cone specimens from 53 women with histologically verified CIN3 were examined. The diagnosis of SMILE was based on the positive mucicarmine staining and weak focal expression of p63. The samples containing SMILE were further immunohistochemically examined using the biomarkers P16, Ki-67, Oct4, CD117, CD34, p53, EMA, and CK15. SMILE was detected in 2 of the 53 patients and concurrent with CIN3 in both cases. SMILE was characterized by the stratified arrangement of atypical cells containing mucin, the positive mucicarmine staining of the entire layer of the atypical epithelium, weak focal p63 expression, high Ki-67 expression, and diffuse r16Ink4a staining. Both SMILE samples showed weak diffuse p53 expression in the presence of single cells with the pronounced nuclear staining pattern for p53 in one female patient. Weak focal CK15 expression was visualized in SMILE. The expression of the stem cell markers Oct4 and CD117 and the angiogenic marker CD34 was absent in the examined cervical epithelial preparations. The diffuse and intense expression of the marker EMA, which was not different from that in the endocervical and stratified squamous epithelium, and CIN3 was established in SMILE. RESULTS: The findings suggest that SMILE is morphologically and immunohistochemically similar to CIN3. In this investigation, these abnormalities differed only in the mucicarmine staining and expression of p63. This may be indicative of the underdiagnosis of SMILE, attendant SIN3 in the routine practice of a clinical pathologist, as the diagnosis of CIN3 is primarily based on the results of assessment of only the preparations stained with hematoxylin and eosin; the expression of p16 and Ki-67 is evaluated in some cases, which fails to differentiate SMILE and CIN3 in a number of preparations. CONCLUSION: The diagnosis of SMILE can be made only by immunohistochemical examination. PMID- 29027525 TI - [Gigantic aneurysm of the coronary artery]. AB - The paper describes a clinical case of gigantic aneurysm of one of the coronary arteries. It considers the morphological and immunohistochemical characteristics of the wall of the blood vessel with the detected signs of coronaritis. The authors have determined that Kawasaki disease could be retrospectively diagnosed in early childhood. PMID- 29027526 TI - [Investigation of the structure of a functionally intact xenopericardial bioconduit after long-term implantation]. AB - AIM: to investigate the cellular composition of a functionally intact xenopericardial valve in a recipient with acquired mitral defect after long-term implantation. MATERIAL AND METHODS: A Uniline bioconduit (BC) ('Neocor', Kemerovo) removed from the heart in the mitral position at 7.2 years after implantation was investigated. Heart valve leaflets were fixed in a buffered 4% paraformaldehyde solution and imbedded in paraffin or epoxy resin. Slices made from the paraffin samples were stained with hematoxylin and eosin or underwent immunohistochemical (IHC) examination for typing endothelial cells, smooth muscle cells, macrophages, fibroblasts, and T and B lymphocytes. The epoxy resin embedded samples were examined using light and scanning electron microscopy according to the original procedure. For this, the samples were ground and polished, then stained with toluidine blue and basic fuchsin or contrasted with uranyl acetate and lead citrate. RESULTS: Different cell types were found in the outer layers of heart valve leaflets. IHC showed that endothelial cells, macrophages, smooth muscle cells, and fibroblasts were present in the samples. A relationship was found between the degree of degenerative changes in the BC surface and the magnitude of cellular infiltration in xenotissue. This paper debates whether impaired integrity of the surface leaflet layers plays a trigger role in structural dysfunctions of the implanted valves and whether BC endothelialization has a protective effect, which can considerably reduce the immunogenicity of xenotussie and prevent the penetration of recipient cells. CONCLUSION: The paper shows that it is expedient to modify the surface of the heart valve leaflets in order to create favorable conditions for the attachment and function of endothelial progenitor cells. PMID- 29027527 TI - [Laryngeal paraganglioma]. AB - The paper describes a clinical case of laryngeal paraganglioma, a rare tumor. It provides the detailed characteristics of current diagnostic techniques. PMID- 29027528 TI - [Nasal glial heterotopia: Clinical and morphological characteristics]. AB - The paper describes a case of nasal glial heterotopia in a 10-month-old girl with a mixed (intranasal and subcutaneous) localization, which is accompanied by the divergence of the nasal bones. Histological examination supplemented by immunohistochemical reactions with antibodies to vimentin, S100 protein, neuron specific enolase, as well as Ki-67 and smooth muscle actin confirmed the neural nature of the tumor. Fields of mature astrocytic glia including individual cells with neuronal differentiation were found among the fibrous and fibrovascular tissues. The paper provides a brief overview of the discussed pathology. PMID- 29027529 TI - [Twin pregnancy with complete hydatidiform mole]. AB - The paper describes a case of twin pregnancy with complete hydatidiform mole (CHM). According to the data available in the literature, the concurrence of CHM with a normal placenta and a viable fetus occurs in 1 per 20,000-100,000 pregnancies, requires a differential diagnosis with partial hydatidiform mole and placental mesenchymal dysplasia, and is characterized by a high rate of complications. In this concurrence, the frequency of persistent trophoblastic disease is as high as 50%. In this case, the pregnancy ended in a spontaneous abortion at 16-17 weeks of pregnancy. A morphological examination determined the fetus without congenital malformations with normal placental weight and structure and the adjacent intact placental tissue with the macro- and microscopic signs of CHM. The diagnosis was confirmed by the lack of r57 expression in the villous trophoblast and stroma in the tissue of the hydatidiform mole. The patient was diagnosed with persistent trophoblastic disease at 2 months after the abortion. PMID- 29027531 TI - [Costal cartilage structural and functional changes in children with a funnel or keeled chest]. AB - Congenital chest wall deformities (CCWDs) in children are severe diseases leading to cosmetic defects and diseases of the respiratory and cardiovascular systems. The most common of these deformities are funnel-shaped (pectus excavatum, FD) and keeled (pectus carinatum, KD) ones. The pathogenesis of CCWDs and the role of costal cartilage structural and functional changes in their pathogenesis have now been not well studied, which makes it difficult to elaborate pathogenetic approaches to correcting these diseases. Analysis of the literature has shown that structural and functional changes occur in the matrix and chondrocytes from the costal cartilage in FD. Similar costal cartilage changes are observed in KD. It is still unknown exactly which pathological processes are present in the costal cartilage and how they result in the development of one or other type of CCWDs. The role of amianthoid transformation (AT) of costal cartilages in these processes is also unknown. It is not improbable that it is AT drastically changing the native cartilage matrix, which is one of the key mechanisms leading to changes in its properties and to the subsequent development of FD or KD. PMID- 29027530 TI - [Automatic morphometric analysis as a method for determining the level of extracellular matrix components and for quantifying nuclear antigens]. AB - Automated image analysis methods are highly important for biotechnology research. The authors developed and tested a program for the morphometric analysis of photomicrographs of the sections processed using the standard immunohistochemical examination protocols. The color deconvolution method used in the algorithm was proven to be effective in mapping the distribution of DAB chromogen in the sample containing multiple dyes. The experiment demonstrated that the level of extracellular matrix proteins could be comparatively quantified in different groups of samples. The effective methods for the quantitative analysis of the Ki 67 labelling index were also tested using the same algorithms. The developed program was published under free GPL 3.0. PMID- 29027532 TI - [Mikhail Matveevich Rudnev is one of the founders of Russian pathological anatomy (On the occasion of the 180th anniversary of his birth)]. PMID- 29027533 TI - Factors associated with circulating concentrations of irisin in the general population cohort of the ABCD study. AB - OBJECTIVE: Animal studies have shown that irisin is a myokine secreted following physical exercise, and that it induces the remodeling of white adipose tissue toward brown adipose tissue. Therefore, a protective role of irisin against obesity, diabetes, and other metabolic and cardiovascular conditions has been hypothesized. However, data in humans are contradictory and few data are available concerning the general population. DESIGN: We aimed to evaluate the association between serum irisin concentrations and habitual physical activity, as well as other metabolic and cardiovascular factors in a general population in a Mediterranean area. METHODS: We considered 858 consecutive individuals included in the ABCD (Alimentazione, Benessere Cardiovascolare e Diabete) study (ISRCTN15840340), a longitudinal observational single-center study of a cohort representative of the general population of Palermo, Sicily. Irisin serum concentrations (Phoenix Europe, Germany), habitual physical activity (HPA) level, and other blood and clinical variables were measured. RESULTS: The irisin serum concentrations were not normally distributed in the cohort (Shapiro-Wilk test=0.94; P<0.001). A significant association between irisin concentrations and HPA was observed (P<0.001). Irisin concentrations were higher in women than in men (P<0.01), and significantly correlated with serum concentrations of HDL cholesterol (P<0.05) and hs-C-reactive protein (hs-CRP; P<0.05). Binary logistic regression analysis demonstrated that high (? median value) irisin serum concentrations were significantly associated with female gender (OR=1.63; 95% CI=1.16-2.28), high serum hs-CRP concentrations (OR=1.61; 95% CI=1.02-2.54) and the HPA level (OR=1.42; 95% CI=1.02-1.96). CONCLUSIONS: Our study confirms, in a cohort of a general population, that irisin concentrations gradually increase with the usual level of habitual physical activity. PMID- 29027534 TI - Long non-coding RNA MEG3 promotes the proliferation of glioma cells through targeting Wnt/beta-catenin signal pathway. AB - Glioma has been identified as one of the most aggressive primary tumors. Long non coding RNAs (lncRNAs), with length larger than 200 bp, have drawn increasing attention to their abnormal expression and regulation function in carcinogenesis. However, the role of lncRNAs in glioma remains largely unknown. Maternally expressed gene 3 (MEG3), also known as gene-trap locus 2 (GTL2), is an imprinted gene, and is encoded by the MEG3 transcript of the DLK1/MEG3 locus on human chromosome, or Meg3 on mouse chromosome. In this study, we found that lncRNA MEG3 was significantly downregulated in malignant glioma tissues and cell lines. The employment of the loss-of and gain-of functions assays presented that MEG3 suppressed glioma cells proliferation and induced cell-cycle arrest. Furthermore, our findings showed that highly expressed MEG3 could weaken Wnt/beta-catenin signaling in glioma. Collectively, our findings revealed that downregulated lncRNA MEG3 could promote glioma cell proliferation through targeting Wnt/beta catenin signaling, which mainly influenced cell cycle. PMID- 29027536 TI - KRAS mutation of extraovarian implants of serous borderline tumor: prognostic indicator for adverse clinical outcome. AB - In contrast to non-invasive extraovarian implants, invasive implants of ovarian serous borderline tumor/atypical proliferative serous tumor are associated with adverse outcome and have been reclassified as low-grade serous carcinoma. Mutations of KRAS and/or BRAF have been reported in up to 50% of serous borderline tumor/atypical proliferative serous tumor. We investigated KRAS and BRAF mutation frequencies in the two types of implants of serous borderline tumor/atypical proliferative serous tumor in correlation with clinical outcome. Forty-two implants of serous borderline tumor from 39 patients were included (invasive implants/low-grade serous carcinoma, n=20; non-invasive implants, n=22). KRAS mutation was found in 12 of 20 invasive implants (60%) and 3 of 22 non-invasive implants (14%). BRAF V600E mutation was found in 1 of 22 non invasive implants (5%) and none in invasive implants (0%). Invasive implants were more frequently associated with higher stage disease. Nine of 14 patients (64%) with KRAS mutation were found to have stage IIIC disease, while 5 of 24 patients (20%) without the mutation had stage IIIC disease. Patients with invasive implants had higher recurrence rate compared to those with non-invasive implants (60 vs 14 %, P=0.0003, log-rank test) and worse disease-specific survival (P=0.0008, log-rank test). Regardless of the histological subtypes, patients with KRAS mutation positive implants had significantly higher recurrence rate than those without the mutation (71 vs 21%, P=0.0021, log-rank test) and an unfavorable disease-specific survival (P=0.0104, log-rank test). In conclusion, compared to those with non-invasive implants, patients with invasive implants present with higher stage of the disease, higher recurrence rate and worse survival. KRAS mutation, but not BRAF V600E mutation, is significantly associated with invasive implants of serous borderline tumor. Regardless of the histological subtypes of the implants, KRAS mutation is a significant prognostic indicator for high risk of tumor recurrence and worse disease-specific survival. PMID- 29027538 TI - Gastrointestinal sodium absorption, microbiome, and hypertension. PMID- 29027537 TI - Optimal detection of clinically relevant mutations in colorectal carcinoma: sample pooling overcomes intra-tumoral heterogeneity. AB - Intra-tumoral genomic heterogeneity is a well-established biologic property of human malignancies with emerging roles in cancer progression and therapy resistance. However, its impact on the clinical utility of genomic testing in patient management remains unclear. Furthermore, best practices to account for heterogeneity in the provision of highly accurate, clinically valid molecular testing have yet to be firmly established. Genomic biomarkers for the management of colorectal carcinoma are both well-established (ie, KRAS, NRAS) and emerging (BRAF, PIK3CA, and others) in respect to therapy selection and clinical trial eligibility. Critically, standard colorectal carcinoma management requires the exclusion of KRAS and NRAS mutations; thus optimal procedures to control for potential intra-tumoral heterogeneity are clinically important. Here, we assessed heterogeneity among three intra-tumoral sites within 99 colorectal carcinomas cases on a CLIA-validated oncology next generation sequencing assay and examined whether a pooling strategy overcame any discordant results. Overall, 11% of cases demonstrated discordant mutation results between sites; 2% of cases were discrepant for mutations within RAS genes while the remainder was discrepant in PIK3CA. Half of the discrepant cases were associated with borderline tumor cellularity assessment. Further, a sample pooling strategy across all three sites successfully detected the relevant mutation in all but one case. Our results indicate that intra-tumoral genomic heterogeneity of clinically relevant genes within colorectal carcinoma is a relatively infrequent occurrence and that a simple strategy to pool DNA from several tumor sites with adequate cellularity minimizes the risk of false negative results even further to ensure optimal patient management. PMID- 29027535 TI - Transplant glomerulopathy. AB - In the renal allograft, transplant glomerulopathy represents a morphologic lesion and not a specific diagnosis. The hallmark pathologic feature is glomerular basement membrane reduplication by light microscopy or electron microscopy in the absence of immune complex deposits. Transplant glomerulopathy results from chronic, recurring endothelial cell injury that can be mediated by HLA alloantibodies (donor-specific antibodies), various autoantibodies, cell-mediated immune injury, thrombotic microangiopathy, or chronic hepatitis C. Clinically, transplant glomerulopathy may be silent, detectable on protocol biopsy, or present with overt manifestations, including up to nephrotic range proteinuria, hypertension, and declining glomerular filtration rate. In either case, transplant glomerulopathy is associated with reduced graft survival. This review details the morphologic features of transplant glomerulopathy found on light microscopy, immunofluorescence microscopy, and electron microscopy. The pathophysiology of the causes and risk factors are discussed. Clinical manifestations are emphasized and potential therapeutic modalities are examined. PMID- 29027540 TI - Dementia: Dementia prevention - a call for contextualized evidence. AB - This corrects the article DOI: 10.1038/nrneurol.2017.136. PMID- 29027541 TI - A systemic view of Alzheimer disease - insights from amyloid-beta metabolism beyond the brain. AB - This corrects the article DOI: 10.1038/nrneurol.2017.111. PMID- 29027542 TI - Stroke: Patients with CVT urgently need high-quality evidence. PMID- 29027543 TI - Motor neuron disease: Peripheral immune cell levels correlate with disease progression in ALS. PMID- 29027539 TI - Fatigue as a symptom or comorbidity of neurological diseases. AB - Fatigue, best described as an overwhelming feeling of tiredness and exhaustion, occurs in the context of various neurological diseases. The high prevalence of fatigue as either a symptom or a comorbidity of neurological disease must be taken seriously, as fatigue interferes with patients' activities of daily living, has a remarkable negative impact on quality of life, and is a major reason for early retirement. The tremendous consequences of fatigue are consistent across neurological diseases, as is the uncertainty concerning its underlying pathophysiological mechanisms. Inconsistencies in defining fatigue contribute to the present situation, in which fatigue represents one of the least-studied and least- understood conditions. Tools for assessing fatigue abound, but few can be recommended for clinical or research use. To make matters worse, evidence-based pharmacological treatment options are scarce. However, non-pharmacological approaches are currently promising and likely to become of increasing importance. In sum, fatigue is challenging for both health-care professionals and patients. The present article aims to provide a comprehensive review of the literature on fatigue in neurological disease, and to reveal its complexity, as well as weaknesses in the concept of fatigue itself. PMID- 29027545 TI - Synergistic treatment of TS. PMID- 29027546 TI - Letter to the Editor: Cerebral Hemorrhage following Chiropractic Activator Treatment-Case Report and Review of Literature. PMID- 29027547 TI - Robust Construction of Diffusion MRI Atlases with Correction for Inter-Subject Fiber Dispersion. AB - Construction of brain atlases is generally carried out using a two-step procedure involving registering a population of images to a common space and then fusing the aligned images to form an atlas. In practice, image registration is not perfect and simple averaging of the images will blur structures and cause artifacts. In diffusion MRI, this is further complicated by the possibility of within-voxel fiber misalignment due to natural inter-subject orientation dispersion. In this paper, we propose a method to improve the construction of diffusion atlases in light of inter-subject fiber dispersion. Our method involves a novel q-space (i.e., wavevector space) patch matching mechanism that is incorporated in a mean shift algorithm to seek the most probable signal at each point in q-space. Our method relies on the fact that the mean shift algorithm is a mode seeking algorithm that converges to the mode of a distribution and is hence robustness to outliers. Our method is therefore in effect seeking the most probable signal profile at each voxel given a distribution of profiles. Experimental results confirm that our method yields cleaner fiber orientation distribution functions with less artifacts caused by dispersion. PMID- 29027544 TI - Long-term effects of exercise and physical therapy in people with Parkinson disease. AB - Parkinson disease (PD) is a progressive, neurodegenerative movement disorder with symptoms reflecting various impairments and functional limitations, such as postural instability, gait disturbance, immobility and falls. In addition to pharmacological and surgical management of PD, exercise and physical therapy interventions are also being actively researched. This Review provides an overview of the effects of PD on physical activity - including muscle weakness, reduced aerobic capacity, gait impairment, balance disorders and falls. Previously published reviews have discussed only the short-term benefits of exercises and physical therapy for people with PD. However, owing to the progressive nature of PD, the present Review focuses on the long-term effects of such interventions. We also discuss exercise-induced neuroplasticity, present data on the possible risks and adverse effects of exercise training, make recommendations for clinical practice, and describe new treatment approaches. Evidence suggests that a minimum of 4 weeks of gait training or 8 weeks of balance training can have positive effects that persist for 3-12 months after treatment completion. Sustained strength training, aerobic training, tai chi or dance therapy lasting at least 12 weeks can produce long-term beneficial effects. Further studies are needed to verify disease-modifying effects of these interventions. PMID- 29027548 TI - Cu2+-Complex of hydrophilic nitrogen-rich polymer dots applied as a new MRI contrast agent. AB - We report on a novel Cu2+-complex of nitrogen-rich polymer dots for magnetic resonance imaging (MRI). The N-rich polymer dots are prepared from N-vinyl imidazole (VIm) by a one-pot hydrothermal synthesis at 220 degrees C (24 h) and used later on to fabricate a Cu2+-PVIm dot complex via efficient incorporation of Cu2+ into aqueous medium. The obtained Cu2+-PVIm dot complexes display relaxivity (r1 = 1.05 mM-1 s-1) two times higher than Cu2+ in aqueous solution (r1 = 0.43 mM 1 s-1) and three times higher than Cu2+ in aqueous solution coordinated with VIm monomers (r1 = 0.32 mM-1 s-1), which show a remarkable contrast enhancement for T1-weighted MRI while efficiently labeling MCF-7 cells and other biomedical applications. PMID- 29027549 TI - Lifetime nanomanometry - high-pressure luminescence of up-converting lanthanide nanocrystals - SrF2:Yb3+,Er3. AB - Anti-Stokes luminescence of up-converting nanocrystals SrF2:Yb3+,Er3+ can be used as a high pressure optical sensor alternative to the ruby fluorescence-scale. In nanocrystalline SrF2:Yb3+,Er3+, high pressure reversibly shortens the emission lifetimes nearly linearly up to 5.29 GPa at least. Its advantage is the use of NIR (~980 nm) radiation, highly penetrable for many materials. The shortening of up-conversion lifetimes has been attributed mainly to the changes in energy transfer rates, caused by decreased interatomic distances and increased overlap integrals between 4f electrons and the valence shells of ligand ions. The origin of high-pressure effects on the luminescence intensity, band ratio and their spectral position has been explained by the increased interactions and distortions of the crystal-field symmetry around the emitting ions in the compressed structure. PMID- 29027550 TI - Enhanced intersystem crossing in carbonylpyrenes. AB - Ultrafast intersystem crossing of carbonylpyrenes in chloroform was investigated by femtosecond pump-probe spectroscopy. When compared to the dominant fluorescence decay pathway in pyrene, carbonyl functionalized pyrenes display near-unity triplet formation upon photoexcitation. The excited singlet state (Sp) undergoes rapid intersystem crossing (kISC) concomitantly with internal conversion (kIC) to lower excited singlet states (Sn) within a timescale of 5-11 ps (1/tau2 = kIC + kISC). Furthermore, intersystem crossing from lower excited singlet states (Sn) proceeds through coupling with receiver triplet states, eventually leading to high triplet quantum yields (PhiT = 97%; tetraacetylpyrene). Followed by internal conversion in the triplet manifolds, phosphorescence decay on a microsecond timescale is observed from the emitter triplet state. PMID- 29027551 TI - Synthesis of free-standing Ta3N5 nanotube membranes and flow-through visible light photocatalytic applications. AB - We report on free-standing Ta3N5 nanotubular membranes with open top and bottom, used as visible-light-active, flow-through photocatalytic micro-reactors. We grow first a robust anodic Ta2O5 layer, lift-off a membrane and convert to Ta3N5. Such membranes can easily, in a flow-through mode, degrade methylene blue under visible light (wavelength >400 nm) or solar illumination. PMID- 29027552 TI - Uniform carbon dots@TiO2 nanotube arrays with full spectrum wavelength light activation for efficient dye degradation and overall water splitting. AB - This work presents a novel approach for preparing photocatalysts based on TiO2 nanotube arrays (TiO2 NTAs) anchored with carbon dots (CDs) by a facile two-step method which includes an electrochemical anodization technique followed by electrochemical deposition. The synthesized high quality graphitic carbon dots can act as sensitizers to extend the spectral range of light absorption towards the full solar spectrum. It is confirmed that TiO2 NTAs anchored with CDs (CDs/TiO2 NTAs) display greatly improved photocatalytic activity and excellent photocatalytic stability. By tuning the light absorption of the TiO2 NTAs, the utilization of light in charge generation and separation is well synergized with the CDs for enhanced photocatalytic pollutant degradation and water splitting, achieving significantly improved rates of photocatalytic degradation and H2 production in the visible and full spectra, respectively. PMID- 29027553 TI - [Pb3Cu2I10(phen)4]n: a novel organic-inorganic hybrid ferromagnetic semiconductor. AB - An iodoplumbate-based organic-inorganic hybrid ferromagnetic semiconductor, [Pb3Cu2I10(phen)4]n, has been solvothermally synthesized. The ferromagnetic exchange interaction is resulting from the multiple aromatic pi-pi stacking interactions between the adjacent phen molecules. PMID- 29027554 TI - Magnetic behaviour of bimetallic layered phases M'0.2Mn0.8PS3.0.25 H2O (M' = ZnII, CuII, NiII, CoII). AB - In this work the magnetic properties of bimetallic phases M'0.2Mn0.8PS3.0.25H2O (M' = CoII, NiII, CuII or ZnII) have been explored and compared with those of the pristine phase MnPS3. Magnetic susceptibility, high field magnetization and electron paramagnetic resonance (EPR) studies reveal that the transition temperature between the antiferromagnetic and paramagnetic order for the pristine phase is shifted to lower values in the bimetallic phases. From magnetization measurements the critical field of the spin-flop transition is found to be dependent on the nature of the added secondary transition metal ion. EPR spectra of all compounds in the temperature range of 8-300 K present a single resonance line shape. Temperature dependence of the EPR parameters, like line width, g values and double integrated area (IDIN), are obtained from the spectra and present a scenario compatible with the magnetization results. The temperature dependence of the first derivative of the product (IDINT) shows two maxima for all samples, with exception of the CoII phase, indicating two critical temperatures, while these critical temperatures could not be clearly determined by dc susceptibility. PMID- 29027555 TI - Formation of ordered mesostructured TiO2 thin films: a soft coarse-grained simulation study. AB - Ordered mesostructured TiO2 thin films are employed in diverse applications ranging from catalysis and sensing, to photovoltaic and lithium-ion batteries. Experimentally these mesostructured thin films are fabricated via a sol-gel process coupled with evaporation-induced self-assembly of a supramolecular template, where the concentration of hydrogen chloride (HCl) and water play vital roles. We employ a soft, coarse-grained model of the amphiphilic template Brij58 and spherical particles, representing titanium-oxo clusters, to study the role of HCl and water in the formation of mesostructured TiO2 thin films. The template cluster and cluster-cluster interactions are reflected in the interaction terms deltaNBP and epsilonPP, respectively. The results show that a decrease in HCl (increase in epsilonPP) leads to the formation of large mesopores due to the strong attraction between particles, giving rise to a high dispersity index (low order) of the thin films. However, a decrease in water (increase in deltaNBP) will compensate for the entropic attraction between particles, resulting in thin films with low dispersity index (high order). The variation of the dispersity index in the deltaNBP-epsilonPP plane provides an intuitive understanding that the slow evaporation of HCl could drive the film towards a uniform mesoporous state, whereas fast evaporation pushes the film through a non-uniform phase. These results indicate that even if the mass proportion of the surfactants Brij58 and titanium precursors is the same in the initial solution, the final mesoporous structures could be diverse, which was confirmed by the controlled experiments. We also confirm the post-processing-towards-order strategy by making the particle rearrangement available by weakening the epsilonPP. The outlined procedure paves the way for soft, coarse-grained models to understand the complex co-assembly of transition metal clusters and amphiphilic surfactants towards the rational design of highly ordered mesoporous structures. PMID- 29027556 TI - Effect of a heavy heteroatom on triplet formation and interactions in single conjugated polymer molecules and aggregates. AB - Triplet formation and interactions with emissive singlet excitons are investigated in poly(3-hexylselenophene) (P3HS) using single molecule spectroscopy. P3HS is a heavy atom analog of the more commonly studied poly(3 hexylthiophene) (P3HT), a benchmark polymer for solar cells. P3HS tends to aggregate strongly which necessitates dilution to ultra-low levels within a solid inert host in order to resolve photophysical responses of single chains. Fluorescence excitation intensity modulation is performed on isolated P3HS chains using a sequence of rectangular pulses of varying intensities to probe the presence of spin-forbidden triplet excitons. Triplet population dynamics originating from singlet-triplet and triplet-triplet interactions appear as quenching of the initial fluorescence intensity to steady-state levels on characteristic time scales of ~1-10 MUs. Over 80% of all molecules studied display significant fluorescence intensity modulation (quenching depths >50%) indicative of efficient intersystem crossing and large triplet occupancies. Because triplets are highly localized and singlet-triplet and triplet-triplet annihilation rate constants are comparable to those of intersystem crossing, multiple triplets are present at any given time on single P3HS chains. Triplet lifetimes were estimated to be ~4 MUs (upper limit) determined from recovery to the ground electronic singlet state in the absence of light and, surprisingly, triplets vanish at the onset of P3HS aggregation. This result was unexpected since P3HS triplet formation takes place on time scales <30 ps making this process competitive with most accessible non-radiative deactivation pathways. PMID- 29027557 TI - Ionic-surfactant-coated subtilisin: activity, enantioselectivity, and application to dynamic kinetic resolution of secondary alcohols. AB - In this work, we explored the utility of ionic-surfactant-coated Bacillus licheniformis subtilisin (ISCBLS) as the catalyst for the dynamic kinetic resolution of secondary alcohols. ISCBLS was prepared by freeze-drying Bacillus licheniformis subtilisin with both ionic surfactant 1 and dextrin. ISCBCL displayed 9300-fold enhanced activity relative to its native counterpart in the transesterificaion of N-acetyl phenylalanine ethyl ester with 1-propanol in hexane and 12 800-fold enhanced activity in the transesterification of trifluoroethyl butyrate with 1-phenylethanol in THF. The enantioselectivity of ISCBLS was examined with 50 secondary alcohols as the substrates for kinetic resolution in the presence of trifluoroethyl butyrate. ISCBLS displayed synthetically useful enantioselectivity for most of the secondary alcohols tested. The enantioselectivity of ISCBLS was in particular good to high for m- or p-substituted 1-phenylethanols. The DKRs of these secondary alcohols by the combination of ISCBLS and a ruthenium-based racemization catalyst provided the products of (S)-configuration with good results (80-94% yield, 90-99% ee). It is concluded that ISCBLS is of great use as the enantiocomplementary counterpart of (R)-selective lipase for the dynamic kinetic resolution of secondary alcohols. PMID- 29027558 TI - Selective engineering of oxygen-containing functional groups using the alkyl ligand oleylamine for revealing the luminescence mechanism of graphene oxide quantum dots. AB - Oxygen-containing functional groups such as epoxy, hydroxyl, carboxylic, and carboxyl groups have a great influence on the luminescence properties of graphene oxide quantum dots (GOQDs). Understanding their roles is essential for the design and optimization of GOQD performance. Herein, we investigate the effect of epoxide functional groups in GOQDs on the luminescence mechanism through passivation of the epoxide functional groups using the alkyl ligand oleylamine. Luminescence in the as-synthesized GOQDs has two separate origins: intrinsic states derived from localized sp2 carbon subdomains and extrinsic states formed by oxygen-functional groups. When the oleylamine ligand is conjugated on the GOQDs, intrinsic PL emission from the localized sp2 carbon subdomains decreases. This is discussed in detail, based on optical characterization and first principles density functional theory calculations, which reveal that the role of the epoxide functional groups is to form localized sp2 carbon subdomains emitting intrinsic PL. To the best of our knowledge, this is the first investigation of the role of epoxide functional groups on the luminescence mechanism in GOQDs. PMID- 29027559 TI - Photosensitised regioselective [2+2]-cycloaddition of cinnamates and related alkenes. AB - An efficient method for the synthesis of substituted cyclobutanes from cinnamates, chalcones, and styrenes has been developed utilizing a visible-light triplet sensitisation mode. This reaction provides a diverse range of substituted cyclobutanes in high yields under mild conditions without the need of external additives. Good regioselectivity is obtained due to strong pi-pi-stacking of arene moieties, whereas diastereoselectivity relies on the electronic effects or ortho-substitution of the arene substrate. The utility of this transformation is demonstrated by the formal synthesis of the lignane natural product (+/-) Tanegool. PMID- 29027560 TI - Recovered spinel MnCo2O4 from spent lithium-ion batteries for enhanced electrocatalytic oxygen evolution in alkaline medium. AB - A facile way of recovering 3d transition metals of industrial importance from spent lithium-ion batteries (LIBs) without using any surfactants has been developed. Mn- and Co-rich spent LIBs were chosen as sustainable sources for recovering the oxides of the respective elements. The physical dismantling of Li ion batteries, chemical leaching with 2 M acetic acid, precipitation with ammonium carbonate, hydrothermal conditioning and calcination at 650 degrees C led to the facile formation of spherical spinel MnCo2O4 with very high morphological selectivity. The obtained spherical MnCo2O4 was identified by various advanced characterization techniques. Detailed electrochemical characterization revealed that the recovered spheres of spinel MnCo2O4 were effective in catalyzing the oxygen evolution reaction (OER) in 1 M KOH and required an overpotential of 358 and 400 mV to generate a current density of 5 and 10 mA cm-2, respectively, with a relatively low catalyst loading (0.001025 g cm-2). Comparative electrocatalytic studies carried out with recovered LiCoO2, recovered LiXMnOX+1 and commercially available catalysts such as RuO2 (c-RuO2), Co3O4 (c-Co3O4) and MnO2 (c-MnO2) revealed that the recovered spheres of spinel MnCo2O4 were more effective OER catalysts than the recovered LiCoO2, recovered LiXMnOX+1, c-Co3O4 and c-MnO2 and exhibited comparable activity to that of c-RuO2 with very little difference in overpotential (~50 mV) at current densities of 5 and 10 mA cm-2. With such a low catalyst loading, the observed electrocatalytic performance in water oxidation of a material recovered from waste is highly significant and will surely attain greater industrial importance when the recycling of spent LIBs from electronic wastes is considered. PMID- 29027561 TI - Influence of temperature gradients on charge transport in asymmetric nanochannels. AB - Charge selective asymmetric nanochannels are used for a variety of applications, such as nanofluidic sensing devices and energy conversion applications. In this paper, we numerically investigate the influence of an applied temperature difference over tapered nanochannels on the resulting charge transport and flow behavior. Using a temperature-dependent formulation of the coupled Poisson-Nernst Planck and Navier-Stokes equations, various nanochannel geometries are investigated. Temperature has a large influence on the total ion transport, as the diffusivity of ions and viscosity of the solution are strongly affected by temperature. We find that the selectivity of the nanochannels is enhanced with increasing asymmetry ratios, while the total current is reduced at higher asymmetry cases. Most interestingly, we find that applying a temperature gradient along the electric field and along the asymmetry direction of the nanochannel enhances the selectivity of the tapered channels even further, while a temperature gradient countering the electric field reduces the selectivity of the nanochannel. Current rectification is enhanced in asymmetric nanochannels if a temperature gradient is applied, independent of the direction of the temperature difference. However, the degree of rectification is dependent on the direction of the temperature gradient with respect to the channel geometry and the electric field direction. The enhanced selectivity of nanochannels due to applied temperature gradients could result in more efficient operation in energy harvesting or desalination applications, motivating experimental investigations. PMID- 29027562 TI - Monomeric and dimeric coordinatively saturated and substitutionally inert Ru(ii) polypyridyl complexes as anticancer drug candidates. AB - Due to the increasing impact of cancer on worldwide mortality, more and more attention is being devoted to the investigation of novel anticancer strategies. Among these, chemotherapy plays a key role in fighting cancer. This explains the increasing engagement of both the pharmaceutical industry and academia towards the discovery of new chemotherapeutic agents. In recent years, metal-based drugs have attracted much attention due to their atypical physico-chemical properties compared to organic molecules. After the approval of cisplatin as a chemotherapeutic agent in 1978, several types of metal-based drugs have been explored. Among them, Ru-based anticancer drug candidates have become a central subject in this research field. However, most of the Ru-based compounds investigated over the last two decades express their cytotoxicity with a mechanism of action involving, among others, a ligand-exchange mechanism. In this Review, we give a complete overview of a specific class of antiproliferative ruthenium complexes, namely coordinatively saturated and substitutionally inert Ru(ii) polypyridyl complexes. This implies that the cytotoxicity observed comes from the entire complex and not from ligand-exchange. In this Review, we present monomeric and dimeric Ru(ii) polypyridyl complexes, which have been found to be toxic to cancer cells. More specifically, monomeric Ru(ii) polypyridyl complexes are analysed considering their direct interaction or not with DNA as the cause of cell death, while dimeric Ru(ii) polypyridyl complexes are classified according to their biological targets. Very importantly, the cellular targets of these complexes are discussed in detail. Indeed, several targets were identified and different mechanisms of action were suggested. PMID- 29027563 TI - Improved device performances based on Si quantum dot/Si nanowire hetero structures by inserting an Al2O3 thin layer. AB - Si quantum dot-based light emitting devices were fabricated on Si nanowire arrays in order to improve light extraction efficiency. However, the device performance is deteriorated by using Si nanowires with a depth of 1.2 MUm due to serious surface recombination. By introducing an Al2O3 thin layer between the Si quantum dots and Si nanowires, significantly enhanced electroluminescence (~8.5 fold) has been demonstrated. Based on electron spin resonance, capacitance-voltage and conductance-voltage measurements, the effect of the Al2O3 thin layer on the improvement of device performance is quantitatively evaluated. Our results demonstrate that besides the chemical passivation to reduce the surface defect states of Si nanowires, the Al2O3 thin layer can act as a barrier layer to confine the injected carriers in the active Si quantum dot layer due to the existence of negatively fixed charges and a potential barrier. As a consequence, radiative recombination is promoted which contributes to the enhanced light emission from devices based on Si quantum dot/Si nanowire hetero-structures. PMID- 29027565 TI - ? PMID- 29027564 TI - Correction to: Complete mucosal healing of distal lesions induced by twice-daily budesonide 2-mg foam promoted clinical remission of mild-to-moderate ulcerative colitis with distal active inflammation: double-blind, randomized study. AB - In Fig. 2(c) of this article, the length of the "95% CI difference bars" under the items labelled "Left-sided and Pancolitis" and "Left-sided" under the heading "Disease type" was corrected. The correct figure is shown in the following page. PMID- 29027566 TI - ? PMID- 29027567 TI - Commentary on: Laparoscopic sacrocolpopexy compared with open abdominal sacrocolpopexy for vault prolapse repair: a randomised controlled trial. PMID- 29027568 TI - [Diagnostics and treatment of acromegaly : Necessity for targeted monitoring of comorbidities]. AB - Acromegaly is a rare and severe condition, presenting with typical signs and symptoms. The diagnosis is often initially made years after the first manifestations of the disease. In more than 99% of patients the disease is caused by a benign pituitary tumor that secretes growth hormone (GH). The diagnosis is based on the presence of increased insulin-like growth factor 1 (IGF-1) levels and a lack of GH suppression in the oral glucose tolerance test. The standard imaging procedure for tumor detection is magnetic resonance imaging in the region of the sella turcica. Treatment includes surgical, drug and radiation therapy. Important factors are an intensive aftercare of the patient, controls for detection of tumor recurrence and pituitary insufficiency as well as assessment of various organ functions and risk constellations. Patient care should involve close cooperation between endocrinologists, neurosurgeons and general practitioners as well as other specialist disciplines. PMID- 29027569 TI - Epidemiology of clavicle fractures in a level 1 trauma center in Belgium. AB - PURPOSE: In the last 10 years, there has been an increasing tendency toward operative fixation of clavicle fractures. In this retrospective analysis, we will demographically assess all patients who sustained a clavicle fracture and were treated in our university hospital between 2004 and 2014. METHODS: We retrospectively updated our database and analyzed all adult patients who were diagnosed with a clavicle fracture in our hospital. The following parameters were included in the database: age, gender, Robinson classification, date of trauma, injury mechanism, time until surgery, and reason for delayed surgery. Descriptive statistics were used to describe differences between patient groups and linear regression was performed to identify trends over time. RESULTS: 667 patients were included for analysis. The mean age was 43 +/- 17.7 years. The majority of clavicle fractures occurred due to bicycle injuries (35.3%) and these increased from 2004 until 2014 (r = 0.738, R2 = 0.545, p = 0.009). Patients with a midshaft clavicle fracture were increasingly treated primarily surgically (r = 0.928, R2 = 0.861, p < 0.0001). There was an increased ratio of delayed surgery in relation to age from the age of 16 (9.1%) until the age of 70 years (37.2%). CONCLUSIONS: There is an increasing number of fractures sustained by bicycle accidents and an increasing number of patients undergoing operative treatment. Middle-aged patients more often had delayed surgery compared with young adult patients. This could be due to an increased activity level of the elder population and the concomitant demand for a faster return to activities. LEVEL OF EVIDENCE: III, retrospective comparative study. PMID- 29027570 TI - Are We Right to Consider Mesenchymal Stem Cells to Be a New Perspective for Patients with Juvenile Idiopathic Arthritis? AB - Juvenile idiopathic arthritis (JIA) is the most common cause of chronic arthritis in childhood. Up to 50% of patients are resistant to standard therapy, which includes non-steroid anti-inflammatory drugs, corticosteroids, disease-modifying anti-rheumatic drugs and biologic therapies. Intra-articular injection of mesenchymal stem cells (MSCs) is proposed as a new approach to JIA treatment. MSCs can modulate inflammation via mechanisms of both adaptive and innate immune response. They are able to inhibit T and B cell proliferation, promote regulatory T cells, suppress the maturation of dendritic cells, stimulate macrophage differentiation into M2 phenotype and reduce effectiveness of natural killer cells. They also secrete plethora of soluble factors which influence joint inflammation. Recent clinical studies reviewed in the article provide promising results which may suggest including intra-articular injection of MSCs in therapy of patients with oligoarticular JIA. PMID- 29027571 TI - Ingestion and Egestion of Microplastics by the Cladoceran Daphnia magna: Effects of Regular and Irregular Shaped Plastic and Sorbed Phenanthrene. AB - The presence of microplastics in aquatic ecosystems is of increasing global concern. This study investigated ingestion, egestion and acute effects of polyethylene microplastics in Daphnia magna. Fate of regular shaped microplastic beads (10-106 um) were compared with irregular shaped microplastic fragments (10 75 um). Daphnia magna ingested regular and irregular microplastic with uptake between 0.7 and 50 plastic particles/animal/day when exposed to microplastic concentrations of 0.0001-10 g/L. Egestion of irregular fragments was slower than that of microplastic beads. The EC50 for irregular microplastic was 0.065 g/L whereas microplastic beads were less inhibitory. The potential of microplastic to act as vector for hydrophobic pollutants was examined using [14C]phenanthrene as tracer. Polyethylene microplastic sorbed less [14C]phenanthrene compared to natural plankton organisms (bacteria, algae, yeast). As microplastics are much less abundant in most aquatic ecosystems compared to plankton organisms this suggests a limited role as vector for hydrophobic pollutants under current environmental conditions. PMID- 29027572 TI - Correction to: Highlights of the annual scientific meeting of the 24th congress of the European Society of Musculoskeletal Radiology (ESSR) 2017. AB - The original version of this article unfortunately contained mistakes. The name and affiliations of Luca Maria Sconfienza are already corrected on this article. PMID- 29027573 TI - Dose reduction for fluoroscopically guided injections: phantom simulation and patient procedures. AB - OBJECTIVE: To demonstrate fluoroscopy dose reduction through both simulated injections on a phantom and patient injections. MATERIALS AND METHODS: Our study was IRB-approved and HIPAA-compliant. Simulation on a phantom was used to estimate effective dose, entrance dose, and organ doses for hip joint injections without and with dose minimization technique (DMT). Additionally, 1,094 joint, bursae, and tendon sheath injections performed by three operators in the same fluoroscopy suite were evaluated both before and after application of DMT. Fluoroscopy time (FT), dose, and dose area product (DAP) of injections were compared using unpaired t-tests with P > 0.05 considered statistically significant. RESULTS: For the phantom simulation comparing injections without DMT and with DMT, the total DAP was 191.7 vs 18.7 MUGy.m2, and the entrance dose was 10.2 vs 3.6 mGy, respectively. For both men and women, DMT reduces effective dose and organ doses. For all injections, the FT (0.7 to 0.2 min), dose (5.6 to 1.9 mGy), and DAP (56.9 to 19.1 MUGy.m2) for all three operators decreased with DMT and remained statistically significant when stratified by the two most common injections, glenohumeral and hip joint injections (P < 0.05). CONCLUSIONS: FT, effective dose, entrance dose, and DAP can be reduced with the use of simple easy to-learn techniques, which will benefit both the patient and the radiologist. PMID- 29027574 TI - The prognostic significance of serum XCL1 concentration in patients with acute lymphoblastic leukemia: a pilot study. AB - There is no information about XCL1 in patients with acute lymphoblastic leukemia (ALL). The objective of this study was to correlate the serum levels of XCL1 and survival in ALL patients. Only ALL patients older than 12 months were considered to participate. Serum XCL1 was measured at diagnosis, end of remission induction, and end of consolidation. Thirty-three ALL patients with median age of 21 years (1-78) were included. Higher XCL1 level (above 50 pg/mL) at ALL diagnosis correlated with higher survival (p = 0.038), whereas XCL1 level at end of induction and consolidation had no significant correlation. Concerning the behavior of serum XCL1 during treatment, higher survival at 5 years was observed in the group with progressively decreased levels of XCL1 (70%) than those with progressively increasing (29%) or no detectable XCL1 (14%). In conclusion, higher serum XCL1 levels at diagnosis and their progressive decline throughout chemotherapy could be correlated with higher survival. PMID- 29027575 TI - Transmission modes of a pesticide-degrading symbiont of the oriental fruit fly Bactrocera dorsalis (Hendel). AB - Symbionts are associated with many insects and play several multifunctional roles in insect-microorganism mutualistic relationships. The trichlorphon-degrading symbiont Citrobacter freundii (CF-BD) of the oriental fruit fly Bactrocera dorsalis was recently discovered; however, its intraspecies transmission pathway among flies remains unknown. Here, we use fluorescence in situ hybridization (FISH), PCR detection, and a series of ingenious experiments to reveal that CF-BD was aggregated in rectal pads associated with the female ovipositor, and the CF BD symbiont was vertically transmitted via egg surface contamination. Although CF BD was not detected in ovaries, it was found in deposited eggs. In addition, CF BD was readily acquired horizontally between larvae or adults via oral uptake, although it was not transferred via mating behavior. Surface sterilization of eggs had a negative effect on the insects, which exhibited a lower body weight and a sharp decrease in fecundity, suggesting important biological roles of CF-BD in the fitness of the host insects. Our findings may also help to explain the high pesticide resistance levels of B. dorsalis. Furthermore, identifying a clear transmission pathway of this organophosphorus-degrading symbiont will be useful for pesticide resistance management and future pest control technologies. PMID- 29027576 TI - Neonatal ulcerative colitis associated with Familial Mediterranean fever: a case report. AB - Neonatal inflammatory bowel disease (IBD) is a subclass of very early onset IBD that includes children younger than 1 month. It is characterized by more colonic involvement and monogenetic etiology, resistance to classical anti inflammatory/immunomodulatory treatments and associated with colitis in first degree family members. Herein we report a 3 month-old girl who was admitted with bloody diarrhea since 10 days of age. Her symptoms persist despite diet elimination. She was diagnosed with neonatal ulcerative colitis (UC) based on clinical, laboratory and histopathological examination. But, she was unresponsive to the immunosuppressive therapy. On the follow-up, she was hospitalized for the high fever two times. Genetic analysis revealed homozygote M694 V mutation. Bloody diarrhea and other clinical findings were improved after colchicine therapy. Neonatal UC associated with Familial Mediterranean fever is an extremely rare condition and to the best of our knowledge our case is the first case in literature. Early diagnosis autoinflammatory disease may prevent complications related to unnecessary immunosuppressive drug usage and the risk of development of amyloidosis associated with autoinflammatory disorders. PMID- 29027578 TI - Ectopic expression of UGT84A2 delayed flowering by indole-3-butyric acid-mediated transcriptional repression of ARF6 and ARF8 genes in Arabidopsis. AB - KEY MESSAGE: Ectopic expression of auxin glycosyltransferase UGT84A2 in Arabidopsis can delay flowering through increased indole-3-butyric acid and suppressed transcription of ARF6, ARF8 and flowering-related genes FT, SOC1, AP1 and LFY. Auxins are critical regulators for plant growth and developmental processes. Auxin homeostasis is thus an important issue for plant biology. Here, we identified an indole-3-butyric acid (IBA)-specific glycosyltransferase, UGT84A2, and characterized its role in Arabidopsis flowering development. UGT84A2 could catalyze the glycosylation of IBA, but not indole-3-acetic acid (IAA). UGT84A2 transcription expression was clearly induced by IBA. When ectopically expressing in Arabidopsis, UGT84A2 caused obvious delay in flowering. Correspondingly, the increase of IBA level, the down-regulation of AUXIN RESPONSE FACTOR 6 (ARF6) and ARF8, and the down-regulation of flowering-related genes such as FLOWERING LOCUS T (FT), SUPPRESSOR OF OVEREXPRESSION OF CO1(SOC1), APETALA1 (AP1), and LEAFY(LFY) were observed in transgenic plants. When exogenously applying IBA to wild-type plants, the late flowering phenotype, the down regulation of ARF6, ARF8 and flowering-related genes recurred. We examined the arf6arf8 double mutants and found that the expression of flowering-related genes was also substantially decreased in these mutants. Together, our results suggest that glycosyltransferase UGT84A2 may be involved in flowering regulation through indole-3-butyric acid-mediated transcriptional repression of ARF6, ARF8 and downstream flowering pathway genes. PMID- 29027577 TI - Assessment of renal perfusion impairment in a rat model of acute renal congestion using contrast-enhanced ultrasonography. AB - Renal congestion is caused by elevated central venous pressure (CVP), and decreases glomerular filtration in patients with congestive heart failure. Since real-time contrast-enhanced ultrasonography (CEUS) using microbubble-based contrast agents can visualize the perfused microvascular bed, we sought to evaluate the impairment of renal perfusion during acute renal congestion with CEUS. In Wister rats, CEUS of kidney was performed with the direct monitoring of CVP and intra-renal pressure (IRP). When CVP was elevated to 10 and 15 mmHg after the bolus injection of normal saline via the femoral vein, peak intensity (PI, dB) and time to PI (TTP) in the renal cortex and medulla were compared with control rats. There was a strong correlation between IRP and CVP (r = 0.95, p < 0.0001). In the congestion model, more time was required for enhancement of the parenchyma, especially in the medulla compared to control; TTP of the medulla and cortex at 15 mmHg CVP (CVP15) was significantly prolonged compared with controls (medulla, 4351 +/- 98 vs. 1415 +/- 267 ms, p = 0.003; cortex, 3219 +/- 106 vs. 1335 +/- 264 ms, p = 0.005). In addition, medullary PI at CVP15 decreased, but not significantly, compared to those of controls and at 10 mmHg CVP (20.1 +/- 0.9, 22.8 +/- 1.6, 21.6 +/- 0.2 dB). In contrast, cortical PIs at CVP15 were significantly lower than that of control (24.6 +/- 1.0 vs. 31.4 +/- 1.0 dB, p = 0.007). CEUS revealed that impaired renal parenchymal flow in an acute congestion model is accompanied with increased renal interstitial pressure. PMID- 29027579 TI - DNA-methylation profiling discloses significant advantages over NanoString method for molecular classification of medulloblastoma. PMID- 29027581 TI - Unusual case of coronal complete bladder duplication associated with rectoprostatic fistula to duplicated prostatic urethra. AB - Anorectal malformations are a common congenital anomaly, while bladder duplication is rare. Bladder duplications are classified as complete or incomplete and sagittal or coronal. We present a rare case of coronal complete bladder duplication with rectoprostatic fistula to the blind ending prostatic urethra of the duplicated bladder. PMID- 29027580 TI - Screening for amyloid proteins in the yeast proteome. AB - The search for novel pathological and functional amyloids represents one of the most important tasks of contemporary biomedicine. Formation of pathological amyloid fibrils in the aging brain causes incurable neurodegenerative disorders such as Alzheimer's, Parkinson's Huntington's diseases. At the same time, a set of amyloids regulates vital processes in archaea, prokaryotes and eukaryotes. Our knowledge of the prevalence and biological significance of amyloids is limited due to the lack of universal methods for their identification. Here, using our original method of proteomic screening PSIA-LC-MALDI, we identified a number of proteins that form amyloid-like detergent-resistant aggregates in Saccharomyces cerevisiae. We revealed in yeast strains of different origin known yeast prions, prion-associated proteins, and a set of proteins whose amyloid properties were not shown before. A substantial number of the identified proteins are cell wall components, suggesting that amyloids may play important roles in the formation of this extracellular protective sheath. Two proteins identified in our screen, Gas1 and Ygp1, involved in biogenesis of the yeast cell wall, were selected for detailed analysis of amyloid properties. We show that Gas1 and Ygp1 demonstrate amyloid properties both in vivo in yeast cells and using the bacteria-based system C-DAG. Taken together, our data show that this proteomic approach is very useful for identification of novel amyloids. PMID- 29027582 TI - Bioleaching of Gold and Silver from Waste Printed Circuit Boards by Pseudomonas balearica SAE1 Isolated from an e-Waste Recycling Facility. AB - Indigenous bacterial strain Pseudomonas balearica SAE1, tolerant to e-waste toxicity was isolated from an e-waste recycling facility Exigo Recycling Pvt. Ltd., India. Toxicity tolerance of bacterial strain was analyzed using crushed (particle size <=150 um) waste computer printed circuit boards (PCBs)/liter (L) of culture medium. The EC50 value for SAE1 was 325.7 g/L of the e-waste pulp density. Two-step bioleaching was then applied to achieve the dissolution of gold (Au) and silver (Ag) from the e-waste. To maximize precious metal dissolution, factors including pulp density, glycine concentration, pH level, and temperature were optimized. The optimization resulted in 68.5 and 33.8% of Au and Ag dissolution, respectively, at a pH of 9.0, a pulp density of 10 g/L, a temperature of 30 degrees C, and a glycine concentration of 5 g/L. This is the first study of Au and Ag bioleaching using indigenous e-waste bacteria and its analysis to determine e-waste toxicity tolerance. PMID- 29027583 TI - Changes in circulating cell-free DNA and nucleosomes in patients with exacerbated psoriasis. AB - Psoriasis is a multifactorial chronic inflammatory disease. We aimed to examine blood levels of nucleosomes derived from apoptotic cells, nucleosomal cell-free DNA (cfDNA) and immune-inflammatory biomarkers tumor necrosis factor-alpha (TNF alpha), C-reactive protein (CRP), and interleukin 6 (IL-6) in psoriatic subjects. The study included 28 patients with exacerbated psoriasis vulgaris and 22 controls. The clinical and laboratory investigations included the determination of PASI score, BMI, cfDNA (by real-time PCR), nucleosomes, TNF-alpha, CRP, and IL 6. The range of PASI score in psoriatic patients was 10-34 (median 19). In the patients, we found significantly elevated levels (p < 0.001) of cfDNA, nucleosomes, TNF-alpha, CRP, and IL-6. We did not find any significant relationship between the analyzed parameters in either group (i.e., experimental or control). Elevated levels of the biomarkers of inflammation (TNF-alpha, CRP, and IL-6) and the indicators of apoptosis (cfDNA, circulating nucleosomes) proved that exacerbated psoriasis vulgaris is associated with a high degree of systemic inflammatory responses and dysregulated apoptotic pathways. PMID- 29027584 TI - The Ceratopteris (fern) developing motile gamete walls contain diverse polysaccharides, but not pectin. AB - MAIN CONCLUSION: Unlike most plant cell walls, the five consecutive walls laid down during spermatogenesis in the model fern Ceratopteris contain sparse cellulose, lack pectin and are enriched with callose and hemicelluloses. Seed free plants like bryophytes and pteridophytes produce swimming male gametes for sexual reproduction. During spermatogenesis, unique walls are formed that are essential to the appropriate development and maturation of the motile gametes. Other than the detection of callose and general wall polysaccharides in scattered groups, little is known about the sequence of wall formation and the composition of these walls during sperm cell differentiation in plants that produce swimming sperm. Using histochemistry and immunogold localizations, we examined the distribution of callose, cellulose, mannan and xylan-containing hemicelluloses, and homogalacturonan (HG) pectins in the special walls deposited during spermatogenesis in Ceratopteris. Five walls are produced in sequence and each has a unique fate. The first wall (W1) contains callose and sparse xylan-containing hemicelluloses. Wall two (W2) is thin and composed of cellulose crosslinked by xylan-containing hemicelluloses. The third wall (W3) is thick and composed entirely of callose, and the fourth wall (W4) is built of cellulose heavily crosslinked by galactoxyloglucan hemicelluloses. Wall five (W5) is an arabinogalactan protein (AGP)-rich matrix in which the gamete changes shape and multiple flagella elongate. We detected no esterified or unesterified HG pectins in any of the walls laid down during spermatogenesis. To consider evolutionary modifications in cell walls associated with motile gametes, comparisons are presented with male gametophyte and spermatogenous cell walls across plant groups. PMID- 29027585 TI - The features of adipose-derived stem cells in patients with inflammatory bowel diseases. AB - PURPOSE: The treatment outcomes for inflammatory bowel disease (IBD) have been improving, but the development of better therapies is needed. Stem cell therapy is promising, but little is known about the differences in adipose-derived stem cells (ADSCs) between IBD patients and healthy individuals. METHODS: ADSCs were isolated from subcutaneous adipose tissue (SAT) in IBD (Crohn's disease, 3; ulcerative colitis, 2) and non-IBD (colorectal cancer, 5; breast cancer, 1) patients. We also analyzed the effects of tumor necrosis factor (TNF)-alpha on murine ADSCs. RESULTS: The numbers of stromal vascular fraction (SVF) cells per gram of SAT were 7.72 +/- 3.03 * 105 in IBD and 8.51 +/- 8.80 * 105 in non-IBD patients (p > 0.05). The proportions of ADSCs in SVF cells were 4.98 +/- 2.61% in IBD and 1.02 +/- 0.67% in non-IBD patients. The numbers of ADSCs per gram of SAT were 4.16 +/- 2.96 * 104 in IBD and 0.88 +/- 1.04 * 104 in non-IBD patients. The proportions and numbers of ADSCs were significantly higher in IBD patients than in non-IBD patients. TNF-alpha significantly facilitated the proliferation and motility of murine ADSCs. CONCLUSION: These results showed the potential advantage of freshly isolated autologous ADSCs in IBD patients. PMID- 29027586 TI - Computational simulation study on ilio-sacral screw fixations for pelvic ring injuries and implications in Asian sacrum. AB - OBJECTIVES: Despite a high possibility of technique-related complications, ilio sacral (IS) screw fixation is the mainstay of operative management in posterior pelvic ring injuries. We aimed to make IS screw trajectory with fully intraosseous path that was optimal and consistent, and confirm the possibility of transiliac-transsacral (TITS) screw fixation in Asian sacrum. METHODS: Eighty-two cadaveric sacra (42 males and 40 females) were enrolled and underwent continuous 1.0-mm slice computed tomography (CT) scans. CT images were imported into Mimics(r) software to reconstruct three-dimensional model of the pelvis. To simulate IS screws, we inserted 7.0-mm-sized TITS cylinder for first (S1) and second (S2) sacral segment and 7.0-mm oblique cylinder for S1. TITS cylinder could not be inserted into S1 of 14 models (sacral variation models) but could be inserted into the S2 of all models. The actual length of virtual IS screws was measured, and anatomic features of safe zone (SZS2) including the area, horizontal distance (HDS2), and vertical distance (VDS2) were evaluated by the possibility of TITS screw fixation in the S1. RESULTS: When the oblique cylinder was directed toward the opposite upper corner of S1 at the level of the first foramen, there was no cortical violation regardless of sacral variation. The average length of TITS cylinder was 152.3 mm (range 127.9-178.2 mm) in S1 and 136.0 mm (range 97.8-164.1 mm) in S2, and for oblique cylinder it was 99.2 mm (range 82.4-132.2 mm). The average VDS2, HDS2, and the area of SZS2 were 15.5 mm (range 8.7-24.4 mm), 18.3 mm (range 12.7-26.6 mm), and 221.1 mm2 (range 91.1 386.7 mm2), respectively. The VDS2 and SZS2 of sacral variation were significantly higher than those of normal (both p = 0.001). CONCLUSIONS: Considering the high variability of the S1, it is better to direct the IS screw trajectory toward the opposite upper corner of the S1 at the level of first sacral foramen. If a TITS screw is needed, the transverse fixation for the S2 could be performed alternatively due to its sufficient osseous site even in Asian sacrum. PMID- 29027587 TI - Correlation between endothelial dysfunction and myocardial damage in acute phase of Tako-Tsubo cardiomyopathy: brachial flow mediated dilation as a potential marker for assessment of patient with Tako-Tsubo. AB - Takotsubo cardiomyopathy (TTC) is characterized by transient systolic ventricular dysfunction. It is supposed to be caused by a cathecolaminergic wave which leads to myocardial stunning through a massive action on beta2-adrenoreceptor. Moreover, beta2-receptor hyperactivity negatively influences endothelial function. It can be detected by brachial flow mediated dilation (b-FMD) which assesses endothelium regulated vasomotility. The study aim is to analyze the b FMD variability during hospitalization in 50 patients admitted with TTC. In addition, we investigated a possible correlation between b-FMD at admission and both length of hospital stay (LOHS) and troponin I peak. We detected b-FMD by measuring the hypoxic induced vasoreactivity through assessing brachial artery dilation after 5 min of iatrogenic ischemia obtained by inflating a sphygmomanometer cuff. Artery diameter modifications were assessed by high resolution ultrasound, and a dedicated software calculated accurately the percentage of dilation after ischemia by comparing it to the basal. These values were measured at admission and on discharge. The obtained values were compared for each patient to explore their variability during hospitalization. Moreover, the correlation between the b-FMD at admission and both the troponin I peak and the LOHS was investigated. There was a statistical significant difference between mean FMD measured at admission and at discharge (respectively 1.54 +/- 0.34 and 8.92 +/- 2.48%; p < 0.001). Moreover, we found a significant negative correlation between troponin I peak and FMD values at admission (r = - 0.7645; p < 0.001) and a significant inverse correlation between FMD at admission and LOHS (r = - 0.7543; p < 0.001). There is a significant improvement of b-FMD during hospitalization in patients admitted for Tako-Tsubo Cardiomyopathy. Moreover, for the first time, a direct correlation among b-FMD, troponin I peak and LOHS has been detected. PMID- 29027588 TI - Mental disorders and the risk for the subsequent first suicide attempt: results of a community study on adolescents and young adults. AB - Adolescents and young adults represent the high-risk group for first onset of both DSM-IV mental disorders and lifetime suicide attempt (SA). Yet few studies have evaluated the temporal association of prior mental disorders and subsequent first SA in a young community sample. We examined (a) such associations using a broad range of specific DSM-IV mental disorders, (b) the risk of experiencing the outcome due to prior comorbidity, and (c) the proportion of SAs that could be attributed to prior disorders. During a 10-year prospective study, data were gathered from 3021 community subjects, 14-24 years of age at baseline. DSM-IV disorders and SA were assessed with the Munich-Composite International Diagnostic Interview. Cox models with time-dependent covariates were used to estimate the temporal associations of prior mental disorders with subsequent first SA. Most prior mental disorders showed elevated risk for subsequent first SA. Highest risks were associated with posttraumatic stress disorder (PTSD), dysthymia, and nicotine dependence. Comorbidity elevated the risk for subsequent first SA, and the more disorders a subject had, the higher the risk for first SA. More than 90% of SAs in the exposed group could be attributed to PTSD, and over 30% of SAs in the total sample could be attributed to specific phobia. Several DSM-IV disorders increase the risk for first SA in adolescents and young adults. Several promising early intervention targets were observed, e.g., specific phobia, nicotine dependence, dysthymia, and whether a young person is burdened with comorbid mental disorders. PMID- 29027589 TI - Diagnosis and treatment of severe neurosurgical patients with pyogenic ventriculitis caused by gram-negative bacteria. AB - The aim of the study is to explore the experiences in diagnosis and treatment of severe neurosurgical patients with pyogenic ventriculitis caused by gram-negative bacteria (G-). Nineteen patients with pyogenic ventriculitis were reviewed for their treatment. The bacterial testing results of cerebrospinal fluid (CSF), the clinical intervention, and the patients' prognosis were evaluated. The bacterial smears of ventricular drainage from all the cases were G- bacteria. Head CT and MRI scans confirmed that they were intraventricular empyema. Eighteen cases of CSF bacterial test were positive, including 12 cases of Acinetobacter baumannii positive, 2 of Klebsiella pneumonia positive, 2 of Serratia marcescens positive, 1 of Pseudomonas maltophila positive, and 1 case of Escherichia coli positive. One case of the bacterial culture was negative. All patients were treated by using intraventricular lavage in combination with intravenous and intraventricular antibiotics in accordance with the clinical conditions. After treatment for 2 to 8 weeks, 14 patients were cured (74%) and 5 were died (26%). Eight patients who were cured had received ventriculoperitoneal shunt due to hydrocephalus at 2 to 6 weeks after infection controlled, and none of them had any reinfection. Twelve of the 14 cured cases came to consciousness, but 2 were persistent in vegetative state starting before the infection; they did not show any improving consciousness after infection had been cured. Suppurative ventriculitis in severe neurosurgical patients is mainly infected by G- with a higher mortality. Early diagnosis, especially in identifying pathogen types, timely ventricular irrigation, and ventricular drainage together with intravenous and intraventricular antibiotic treatment, should improve prognosis. PMID- 29027591 TI - Clinical toxicity of antibody drug conjugates: a meta-analysis of payloads. AB - Background Antibody drug conjugates (ADCs) utilize a monoclonal antibody to deliver a cytotoxic payload specifically to tumor cells, limiting exposure to healthy tissues. Major clinical toxicities of ADCs include hematologic, hepatic, neurologic, and ophthalmic events, which are often dose-limiting. These events may be off-target effects caused by premature release of payload in circulation. A meta-analysis was performed to summarize key clinical safety data for ADCs by payload, and data permitting, establish a dose-response model for toxicity incidence as a function of payload, dose/regimen, and cancer type. Methods A literature search was performed to identify and extract data from clinical ADC studies. Toxicity incidence and severity were collected by treatment arm for anemia, neutropenia, thrombocytopenia, leukopenia, hepatic toxicity, peripheral neuropathy, and ocular toxicity. Exploratory plots, descriptive summaries, and logistic regression modelling were used to explore Grade >= 3 (G3/4) toxicities and assess the impact of covariates, including cancer type and dose/regimen. Results The dataset contained 70 publications; quantitative analysis included 43 studies with G3/4 toxicity information reported for the endpoints above. G3/4 anemia, neutropenia and peripheral neuropathy were consistently reported for MMAE ADCs, thrombocytopenia and hepatic toxicity for DM1, and ocular toxicity for MMAF. Safety profiles of MMAE, DM1, and DM4 ADCs differed between solid and hematologic cancers. Conclusions Published ADC clinical data is limited by non uniform reporting for toxicity and lack of dosing information, limiting the ability to develop quantitative models relating toxicity to exposure. However, the current analysis suggests that key G3/4 toxicities of ADCs in the clinic are likely off-target and related to payload. PMID- 29027590 TI - Diagnostic utility of combined retinal ganglion cell count estimates in Japanese glaucoma patients. AB - PURPOSE: To assess the combined estimate of retinal ganglion cell (RGC) count developed by Medeiros et al. as a tool for diagnosis of glaucoma in Japanese patients. STUDY DESIGN: Cross-sectional study. METHODS: Thirty-one eyes of 19 healthy controls and 106 eyes of 70 glaucoma patients underwent standard automated perimetry (SAP) and three types of spectral domain optical coherence tomography (SD-OCT) imaging using the Cirrus, RTVue, and 3D-OCT instruments. RGC counts derived from SAP and SD-OCT data were estimated using the Harwerth model (SAPrgc and OCTrgc, respectively), from which the combined RGC count estimates (CRGC) were calculated using the formula developed by Medeiros et al. Receiver operating characteristic curve (ROC) analyses were conducted for mean deviation (MD), retinal nerve fiber layer thickness (RNFLT), and CRGC. RESULTS: The mean OCTrgc derived from the Cirrus, RTVue, and 3D-OCT instruments were 1150, 1245, and 1316 (* 1000 cells), respectively, for the control group and 463, 519, and 516 (* 1000 cells), respectively, for the patient group. SAPrgc of the controls' group was 1526 and the patients' group, 731 (* 1000 cells), and were consistently greater than OCTrgc in both groups (a generalized estimating equation model, p < 0.001). Partial area under the curve (pAUC) of MD was 0.178, and that of RNFLT and CRGC for the three OCT instruments were 0.185, 0.18, 0.189 and 0.196, 0.196, 0.197, respectively. CRGC had larger pAUC than MD, whereas there was no or marginal difference in pAUC between CRGC and cpRNFLT, irrespective of OCT device used or glaucoma severity. CONCLUSION: CRGC proved well suited to discriminate glaucoma patients from controls. However, its clinical utility did not seem to overwhelm isolated structural measures in the tested Japanese patients. PMID- 29027592 TI - A novel citrus viroid found in Australia, tentatively named citrus viroid VII. AB - A novel citrus viroid was discovered in a non-symptomatic Lisbon lemon (Citrus x limon L. Burm.f.) tree in New South Wales, Australia. Bioindexing, molecular detection and characterization involving sequencing combined with in silico analysis for the identification of the viroid-RNA hallmark properties of transmissibility and autonomous replication as well as specific sequence and structural motifs suggest that this viroid is a member of a new species in the genus Apscaviroid, family Pospiviroidae, which we have tentatively named "citrus viroid VII" (CVd-VII). PMID- 29027593 TI - Detecting the effects of coal mining, acid rain, and natural gas extraction in Appalachian basin streams in Pennsylvania (USA) through analysis of barium and sulfate concentrations. AB - To understand how extraction of different energy sources impacts water resources requires assessment of how water chemistry has changed in comparison with the background values of pristine streams. With such understanding, we can develop better water quality standards and ecological interpretations. However, determination of pristine background chemistry is difficult in areas with heavy human impact. To learn to do this, we compiled a master dataset of sulfate and barium concentrations ([SO4], [Ba]) in Pennsylvania (PA, USA) streams from publically available sources. These elements were chosen because they can represent contamination related to oil/gas and coal, respectively. We applied changepoint analysis (i.e., likelihood ratio test) to identify pristine streams, which we defined as streams with a low variability in concentrations as measured over years. From these pristine streams, we estimated the baseline concentrations for major bedrock types in PA. Overall, we found that 48,471 data values are available for [SO4] from 1904 to 2014 and 3243 data for [Ba] from 1963 to 2014. Statewide [SO4] baseline was estimated to be 15.8 +/- 9.6 mg/L, but values range from 12.4 to 26.7 mg/L for different bedrock types. The statewide [Ba] baseline is 27.7 +/- 10.6 ug/L and values range from 25.8 to 38.7 ug/L. Results show that most increases in [SO4] from the baseline occurred in areas with intensive coal mining activities, confirming previous studies. Sulfate inputs from acid rain were also documented. Slight increases in [Ba] since 2007 and higher [Ba] in areas with higher densities of gas wells when compared to other areas could document impacts from shale gas development, the prevalence of basin brines, or decreases in acid rain and its coupled effects on [Ba] related to barite solubility. The largest impacts on PA stream [Ba] and [SO4] are related to releases from coal mining or burning rather than oil and gas development. PMID- 29027594 TI - Treatment and survival disparities by ethnicity in New Zealand women with stage I III breast cancer tumour subtypes. AB - PURPOSE: This study aims to look at the distribution of different subtypes of stage I-III breast cancer in Maori and Pacific versus non-Maori/Pacific women, and to examine cancer outcomes by ethnicity within these different subtypes. METHOD: This study included 9,015 women diagnosed with stage I-III breast cancer between June 2000 and May 2013, recorded in the combined Waikato and Auckland Breast Cancer Registers, who had complete data on ER, PR and HER2 status. Five ER/PR/HER2 subtypes were defined. Kaplan-Meier method and Cox proportional hazards model were used to examine ethnic disparities in breast cancer-specific survival. RESULTS: Of the 9,015 women, 891 were Maori, 548 were Pacific and 7,576 others. Both Maori and Pacific women were less likely to have triple negative breast cancer compared to others (8.6, 8.9 vs. 13.0%). Pacific women were more than twice as likely to have ER-, PR- and HER2+ cancer than Maori and others (14.2 vs. 6.0%, 6.7%). After adjustment for age, year of diagnosis, stage, grade and treatment, the hazard ratios of breast cancer-specific mortality for Maori and Pacific women with ER+, PR+ and HER2- were 1.52 (95% CI 1.06-2.18) and 1.55 (95% CI 1.04-2.31) compared to others, respectively. Maori women with HER2+ cancer were twice more likely to die of their cancer than others. CONCLUSIONS: Outcomes for Maori and Pacific women could be improved by better treatment regimens especially for those with HER2+ breast cancer and for women with ER+, PR+ and HER2- breast cancer. PMID- 29027596 TI - 10-year parasitological examination results (2003 to 2012) of faecal samples from horses, ruminants, pigs, dogs, cats, rabbits and hedgehogs. AB - The results of coproscopical examinations in domestic animals and hedgehogs carried out as routine diagnostics in the years 2003 to 2012 at the Institute for Parasitology, University of Veterinary Medicine Hannover, Germany, are presented. Of 3475 horse faecal samples, 30.1% contained stages of strongyles and 1.3% eggs of Strongyloides westeri and Parascaris equorum, respectively. The most frequently observed parasite stages in 1416 cattle faecal samples were Eimeria oocysts (21.3%) and strongyle eggs or larvae (15.9%). Dictyocaulus viviparus larvae and Fasciola hepatica eggs were identified in 0.9 and 1.3% of samples. Of 574 bovine faecal samples analysed by carbol-fuchsin staining, 39.9% were positive for Cryptosporidium oocysts. Stages of strongyles were found in 52.4% of sheep (n = 374) and 44.9% of goat faeces (n = 98) and Eimeria oocysts in 41.4 and 32.7% of their faeces, respectively. Of 1848 pig faecal samples, 3.0% contained stages of strongyles, 1.6% eggs of Ascaris suum and 3.3% coccidian (Eimeria or Cystoisospora spp.) oocysts. The most frequently detected helminth eggs in faecal samples of dogs (n = 2731) and cats (n = 903) were Toxocara spp. (2.8 and 3.9%, respectively). Cystoisospora oocysts were identified in 5.6% of dog and 2.4% of cat faeces. Furthermore, 0.7% of the cat samples were positive for small Toxoplasma gondii-like oocysts. The faecal samples of rabbits (n = 434) contained eggs of Passalurus ambiguus (3.0%), strongyles (1.8%) and Trichuris leporis (0.2%) as well as Eimeria oocysts (21.2%). The most abundant nematodes in the samples of hedgehogs (n = 205) were Capillaria spp. (39.5%) and Crenosoma striatum (26.8%); coccidian oocysts were found in 14.2% of the samples. PMID- 29027595 TI - Carnosinase, diabetes mellitus and the potential relevance of carnosinase deficiency. AB - Carnosinase (CN1) is a dipeptidase, encoded by the CNDP1 gene, that degrades histidine-containing dipeptides, such as carnosine, anserine and homocarnosine. Loss of CN1 function (also called carnosinase deficiency or aminoacyl-histidine dipeptidase deficiency) has been reported in a small number of patients with highly elevated blood carnosine concentrations, denoted carnosinaemia; it is unclear whether the variety of clinical symptoms in these individuals is causally related to carnosinase deficiency. Reduced CN1 function should increase serum carnosine concentrations but the genetic basis of carnosinaemia has not been formally confirmed to be due to CNDP1 mutations. A CNDP1 polymorphism associated with low CN1 activity correlates with significantly reduced risk for diabetic nephropathy, especially in women with type 2 diabetes, and may slow progression of chronic kidney disease in children with glomerulonephritis. Studies in rodents demonstrate antiproteinuric and vasculoprotective effects of carnosine, the precise molecular mechanisms, however, are still incompletely understood. Thus, carnosinemia due to CN1 deficiency may be a non-disease; in contrast, carnosine may potentially protect against long-term sequelae of reactive metabolites accumulating, e.g. in diabetes and chronic renal failure. PMID- 29027598 TI - A randomized phase II study of weekly paclitaxel with or without pelareorep in patients with metastatic breast cancer: final analysis of Canadian Cancer Trials Group IND.213. AB - BACKGROUND: Pelareorep, a serotype 3 reovirus, has demonstrated preclinical and early clinical activity in breast cancer and synergistic cytotoxic activity with microtubule targeting agents. This multicentre, randomized, phase II trial was undertaken to evaluate the efficacy and safety of adding pelareorep to paclitaxel for patients with metastatic breast cancer (mBC). METHODS: Following a safety run in of 7 patients, 74 women with previously treated mBC were randomized either to paclitaxel 80 mg/m2 intravenously on days 1, 8, and 15 every 4 weeks plus pelareorep 3 * 1010 TCID50 intravenously on days 1, 2, 8, 9, 15, and 16 every 4 weeks (Arm A) or to paclitaxel alone (Arm B). Primary endpoint was progression free survival (PFS). Secondary endpoints were objective response rate, overall survival (OS), circulating tumour cell counts, safety, and exploratory correlative analyses. All comparisons used a two-sided test at an alpha level of 20%. Survival analyses were adjusted for prior paclitaxel. RESULTS: Final analysis was performed after a median follow-up of 29.5 months. Pelareorep was well tolerated. Patients in Arm A had more favourable baseline prognostic variables. Median adjusted PFS (Arm A vs B) was 3.78 mo vs 3.38 mo (HR 1.04, 80% CI 0.76-1.43, P = 0.87). There was no difference in response rate between arms (P = 0.87). Median OS (Arm A vs B) was 17.4 mo vs 10.4 mo (HR 0.65, 80% CI 0.46 0.91, P = 0.1). CONCLUSIONS: This first, phase II, randomized study of pelareorep and paclitaxel in previously treated mBC did not show a difference in PFS (the primary endpoint) or RR. However, there was a significantly longer OS for the combination. Further exploration of this regimen in mBC may be of interest. PMID- 29027597 TI - Lipoprotein-associated phospholipase A2 activity in obese adolescents with and without type 2 diabetes. AB - Lipoprotein-associated phospholipase A2 (Lp-PLA2) was identified as a strong predictor for cardiovascular events. Furthermore, it is highly associated with obesity. The role of Lp-PLA2 in diabetes mellitus is controversial and analyses, especially in adolescents with type 2 diabetes (T2D), are missing. Therefore, we compared Lp-PLA2 activity between two obese age-, sex-, and BMI-matched cohorts of adolescents with and without T2D. Relationships between Lp-PLA2 activity and age, BMI, hemoglobin A1c, lipids, and adipokines were evaluated. Lp-PLA2 activity was analyzed in serum of 72 obese adolescents without T2D (mean age 15.2 +/- 1.6 years) and in 65 obese adolescents with T2D (mean age 15.5 +/- 1.8 years). Clinical data were obtained from the Diabetes-Patienten-Verlaufsdokumentation (DPV) registry. Surprisingly, obese adolescents with T2D had lower levels of Lp PLA2 activity than obese children without T2D (160.2 +/- 45.0 versus 180.9 +/- 35.6 nmol/min/ml, p = 0.003), but this decrease could only be detected in male (158.8 +/- 45.3 versus 190.8 +/- 31.3 nmol/min/ml, p < 0.001) and not in female adolescents (162.1 +/- 45.5 versus 167.7 +/- 37.1 nmol/min/ml, p = 0.60). In multiple linear regression analysis, differences in Lp-PLA2 activity between cohorts remained large and significant (beta-coefficient: -31.60, 95% confidence interval [-49.27;-13.93], p < 0.001). Furthermore, Lp-PLA2 activity was positively associated with BMI (beta-coefficient: 2.04 [0.68;3.40], p = 0.004) and negatively associated with the adipokines leptin (beta-coefficient: -0.53 [ 0.89;-0.17], p = 0.004) and adiponectin (beta-coefficient: -3.06, [-5.63;-0.48], p = 0.02). Elevated mean glucose concentrations in adolescents with T2D were not associated with an increase but with a decrease of Lp-PLA2 activity. Hence, in young patients with T2D the Lp-PLA2 activity as a risk predictor for cardiovascular events needs further investigation. PMID- 29027600 TI - Improved hydrolase activity in barley and reduced malting time by adding phytase as an activator during malting steeping. AB - OBJECTIVES: Exogenous phytase improved the activity of hydrolases to decrease the malting time. RESULTS: Treatment with phytase during barley steeping increased activity of hydrolases (alpha-/beta-amylase, proteinase, beta-glucanase and xylanase) in green malt. Maximal activity was observed for alpha-/beta-amylase, beta-glucanase and xylanase with 0.8 U phytase/g and proteinase with 1.2 U phytase/g. Phytase promoted acrospire growth of green malt and reduced malting process with 0.8 U phytase/g in 96 h, which is 24 h less than the control. No significant variation of malt quality was found between control malt and malt treated with 0.8 U/g or 1.2 U phytase/g (P > 0.05), which makes application of exogenous phytase during steeping process as a good option for reducing malting time. CONCLUSION: Adding phytase during steeping process increases the activity of hydrolases, which reduces malting time without impacting on malt quality. PMID- 29027599 TI - Dyspepsia, Diarrhea, and Deafness: Some Calling Cards of the Great Mimic! PMID- 29027601 TI - DNMT1, DNMT3A and DNMT3B proteins are differently expressed in mouse oocytes and early embryos. AB - DNA methylation is one of the epigenetic mechanisms and plays important roles during oogenesis and early embryo development in mammals. DNA methylation is basically known as adding a methyl group to the fifth carbon atom of cytosine residues within cytosine-phosphate-guanine (CpG) and non-CpG dinucleotide sites. This mechanism is composed of two main processes: de novo methylation and maintenance methylation, both of which are catalyzed by specific DNA methyltransferase (DNMT) enzymes. To date, six different DNMTs have been characterized in mammals defined as DNMT1, DNMT2, DNMT3A, DNMT3B, DNMT3C, and DNMT3L. While DNMT1 primarily functions in maintenance methylation, both DNMT3A and DNMT3B are essentially responsible for de novo methylation. As is known, either maintenance or de novo methylation processes appears during oocyte and early embryo development terms. The aim of the present study is to investigate spatial and temporal expression levels and subcellular localizations of the DNMT1, DNMT3A, and DNMT3B proteins in the mouse germinal vesicle (GV) and metaphase II (MII) oocytes, and early embryos from 1-cell to blastocyst stages. We found that there are remarkable differences in the expressional levels and subcellular localizations of the DNMT1, DNMT3A and DNMT3B proteins in the GV and MII oocytes, and 1-cell, 2-cell, 4-cell, 8-cell, morula, and blastocyst stage embryos. The fluctuations in the expression of DNMT proteins in the analyzed oocytes and early embryos are largely compatible with DNA methylation changes and genomic imprintestablishment appearing during oogenesis and early embryo development. To understand precisemolecular biological meaning of differently expressing DNMTs in the early developmental periods, further studies are required. PMID- 29027603 TI - Review of people with retinal vasculitis and positive QuantiFERON(r)-TB Gold test in an area nonendemic for tuberculosis. AB - PURPOSE: To assess the frequency of a positive QuantiFERON(r)-TB Gold test (quantiferon) among patients with retinal vasculitis in an area nonendemic for tuberculosis (TB); to review clinical characteristics and management of affected individuals. METHODS: Consecutive patients with retinal vasculitis and a positive quantiferon were retrospectively analyzed. Demographics, clinical data, laboratory, imaging findings, and therapy were evaluated. RESULTS: Among 49 patients with retinal vasculitis, 12 (24%) had a positive quantiferon. Median age was 37 years, there were five female patients. Five individuals (42%) had previously lived in a country endemic for TB. Retinal vasculitis was occlusive in six patients (50%). On chest imaging, pulmonary tuberculosis was suspected in one patient (8.3%). Treatment modalities included full antitubercular treatment (n = 1), isoniazid prophylaxis (n = 6), systemic corticosteroids (n = 8), and laser treatment (n = 5). After a median follow-up of 27.5 months, inflammation was inactive (n = 6) or recurrently present (n = 6). No patient lost >= 2 lines of best-corrected visual acuity during follow-up. CONCLUSIONS: The quantiferon test is recommended in the evaluation of people with retinal vasculitis. Interpretation of a positive result can be challenging in a country nonendemic for TB. The majority of patients with quantiferon-positive retinal vasculitis were found to have latent TB. PMID- 29027602 TI - Combining risk communication strategies to simultaneously convey the risks of four diseases associated with physical inactivity to socio-demographically diverse populations. AB - A single risk factor can increase the risk of developing multiple diseases, but most risk communication research has been conducted in the context of a single disease. We explored which combination of three recommended risk communication strategies is most effective in simultaneously conveying risk estimates of four diseases associated with physical inactivity: colon cancer, stroke, diabetes, and heart disease. Participants (N = 1161, 50% no college experience, 50% racial/ethnic minority) were shown hypothetical risk estimates for each of the four diseases. All four diseases were placed at varying heights on 1 of 12 vertical bar charts (i.e., "risk ladders") to indicate their respective probabilities. The risk ladders varied in a 2 (risk reduction information: present/absent) * 2 (numerical format: words/words and numbers) * 3 (social comparison information: none/somewhat higher than average/much higher than average) full factorial design. Participants were randomly assigned to view one of the risk ladders and then completed a questionnaire assessing message comprehension, message acceptance, physical activity-related risk and efficacy beliefs, and physical activity intentions. Higher message acceptance was found among (1) people who received risk reduction information versus those who did not (p = .01), and (2) people who did not receive social comparison information versus those told that they were at higher than average risk (p = .03). Further, absolute cognitive perceived risk of developing "any of the diseases shown in the picture" was higher among people who did not receive social comparison information (p = .03). No other main effects and only very few interactions with demographic variables were found. Combining recommended risk communication strategies did not improve or impair key cognitive or affective precursors of health behavior change. It might not be necessary to provide people with extensive information when communicating risk estimates of multiple diseases. PMID- 29027604 TI - Prevalence of avian influenza (H9N2) in commercial quail, partridge, and turkey farms in Iran, 2014-2015. AB - Avian influenza virus (AIV) H9N2 subtype is endemic in Iran and causes substantial economic loss to the growing poultry industry within the country. In this study, a cross-sectional analysis was carried out to determine the sero prevalence of H9N2 in several commercial farms between the years 2014 and 2015. The comparison of the mean of serum titers and the ratio of sero-positive birds between all units were analyzed using one-way ANOVA test. In 2014, a total of 77 farms (58 turkey farms, 14 quail farms, and 5 partridge farms) and 894 birds (682 turkeys, 154 quails, and 58 partridges) were sampled while in 2015, a total of 69 farms (54 turkey farms, 8 quail farms, and 7 partridge farms) and 856 birds (675 turkeys, 105 quails, and 76 partridges) were sampled. Of that, 52 of 77 sampled farms (67.5%) and 437 of 894 samples (48.9%) were positive for H9N2 in 2014 while. Forty-one of 69 farms (59.4%) and 307 of 856 sera (35.9%) were positive in 2015. Furthermore, the mean titer of partridge farms was significantly lower than that of turkey farms (p < 0.01) and the mean percentage of sero-positive turkey farms was significantly higher than partridge farms (p < 0.01) in 2014. In 2015, no significant difference was observed between the mean sera titer amongst farms and percentage of sero-positive birds (p > 0.05). Our results indicated that H9N2 is circulating in these farms. Since many more such farms are being established for operations, in addition to the threat of emergence and continuous reemergence of the disease in these farms, enhanced veterinary biosecurity measures on farms are required for mitigation. PMID- 29027605 TI - Short-term depression and transient memory in sensory cortex. AB - Persistent neuronal activity is usually studied in the context of short-term memory localized in central cortical areas. Recent studies show that early sensory areas also can have persistent representations of stimuli which emerge quickly (over tens of milliseconds) and decay slowly (over seconds). Traditional positive feedback models cannot explain sensory persistence for at least two reasons: (i) They show attractor dynamics, with transient perturbations resulting in a quasi-permanent change of system state, whereas sensory systems return to the original state after a transient. (ii) As we show, those positive feedback models which decay to baseline lose their persistence when their recurrent connections are subject to short-term depression, a common property of excitatory connections in early sensory areas. Dual time constant network behavior has also been implemented by nonlinear afferents producing a large transient input followed by much smaller steady state input. We show that such networks require unphysiologically large onset transients to produce the rise and decay observed in sensory areas. Our study explores how memory and persistence can be implemented in another model class, derivative feedback networks. We show that these networks can operate with two vastly different time courses, changing their state quickly when new information is coming in but retaining it for a long time, and that these capabilities are robust to short-term depression. Specifically, derivative feedback networks with short-term depression that acts differentially on positive and negative feedback projections are capable of dynamically changing their time constant, thus allowing fast onset and slow decay of responses without requiring unrealistically large input transients. PMID- 29027606 TI - Positive and Negative Peer Influence in Residential Care. AB - The potential for negative peer influence has been well established in research, and there is a growing interest in how positive peer influence also impacts youth. No research, however, has concurrently examined positive and negative peer influence in the context of residential care. Clinical records for 886 residential care youth were used in a Hierarchical Linear Model analysis to examine the impact of negative and positive peer influence on naturally occurring patterns of serious problem behavior over time. Negative peer influence, where the majority of youth in a home manifested above the average number of serious behavior problems, occurred 13.7% of the time. Positive peer influence, where the majority of youth manifested no serious problem behaviors for the month, occurred 47.7% of the time. Overall, youth problem behavior improved over time. There were significantly lower rates of serious problem behavior in target youth during positive peer influence months. Conversely, there were significantly higher rates of serious problem behaviors in target youth during negative peer influence months. Negative peer influence had a relatively greater impact on target peers' serious behavior problems than did positive peer influence. Caregiver experience significantly reduced the impact of negative peer influence, but did not significantly augment positive peer influence. Months where negative peer influence was combined with inexperienced caregivers produced the highest rates of serious problem behavior. Our results support the view that residential programs for troubled youth need to create circumstances that promote positive and control for negative peer influence. PMID- 29027608 TI - Ivabradine in Postural Orthostatic Tachycardia Syndrome: Preliminary Experience in Children. AB - OBJECTIVE: Ivabradine is a selective and specific inhibitor of the I(f) current in the sinoatrial and atrioventricular nodes. It decreases heart rate and myocardial oxygen consumption at rest and during exercise. It is used in adults for management of heart failure and angina, but promising results have been obtained in postural orthostatic tachycardia syndrome (POTS). There is little experience of ivabradine in childhood, although it is used on a compassionate basis. Our aim was to review our experience of ivabradine in a retrospective evaluation of pediatric patients with POTS. METHODS: We evaluated all patients younger than 18 years for whom ivabradine had been prescribed for this indication, from February 2008 to June 2014. RESULTS: Twenty-two patients were identified (15 female). Median age was 14.5 years (11-17 years). The ivabradine dosage after up-titration was 0.1 mg/kg per dose twice daily. In 15 (68%) symptoms improved. Ivabradine was suspended in five, but only in one for worsening of symptoms. There was a reduction in heart rate on resting electrocardiogram (EKG) from a mean (standard deviation) of 82.5 (13.6) bpm to a mean of 71 (16.5) bpm (p = 0.007). No patient had increased duration of QTc (p = 0.44). One (4.5%) experienced phosphenes. CONCLUSIONS: From this initial experience, ivabradine is safe in patients younger than 18 years with POTS. We observed improvement of symptoms in 68% and phosphenes in less than 5%. Further studies are needed to assess the safety in a randomized control setting. PMID- 29027607 TI - Developing a patient-reported outcome measure for HIV care on perceived barriers to antiretroviral adherence: assessing the needs of HIV clinicians through qualitative analysis. AB - PURPOSE: To identify HIV clinicians' needs for the clinical use of a new patient reported outcome measure (PRO) on barriers to antiretroviral therapy (ART) adherence. METHODS: In 2015, five focus groups with 31 clinicians from France were transcribed, coded with Atlas.ti, and submitted to a typological analysis. RESULTS: The analysis identified seven patient profiles, each tied to distinct barriers to adherence and to specific needs for the PRO's content, data collection and transmission. Clinicians preferred, for the patient who is: (1) 'passive,' that the PRO collect information on ART knowledge, to ensure that the prescription's instructions are being respected; (2) 'misleading,' that it be able to detect adherence to ART and socially desirable responses; (3) 'stoic,' that questions challenge the patient to recognize treatment-specific side effects; (4) 'hedonistic,' that the PRO contains content on lifestyle and risk taking; (5) 'obsessive,' that the PRO captures quality of life and stressful life events; (6) 'overburdened,' that the PRO provides information on the person's home environment, socioeconomic status and cultural constraints. For all or most patient profiles, the clinicians wished that the PRO be completed, minimally, prior to the medical consultation and to receive alerts, under varying conditions, when problematic scores were detected. Depending on the profile, there was preference for the inclusion of open-ended questions and transmission of cross-sectional, periodic or longitudinal PRO data. CONCLUSION: Overall, this study's findings suggest that to support the clinical management of ART adherence, our PRO must meet the needs of a wide variety of patients and must perform multiple functions. PMID- 29027609 TI - Juvenile Trabecular Ossifying Fibroma. AB - Benign fibro-osseous lesions within the maxillofacial region represent a heterogeneous group of benign entities with overlapping histologic features. Ossifying fibroma, the rarest of these entities, represents a true neoplasm. Juvenile ossifying fibroma (JOF) is considered an aggressive rapidly growing sub type. It tends to occur in the first or second decades of life. Based on histological and clinical features it can further be classified into two variants, namely juvenile trabecular ossifying fibroma (JTOF) and juvenile psammomatoid ossifying fibroma (JPOF). JTOF features a proliferation of cellular fibroblastic tissue admixed with woven bone trabeculae with varying histologic presentations. Correlation with clinical and radiographic features is essential to differentiate it from other fibro-osseous lesions. A case of JTOF of the mandible is exemplified in this Sine Qua Non Radiology-Pathology article. PMID- 29027610 TI - Risk Factors for and Incidence of Seizures in Metastatic Castration-Resistant Prostate Cancer: A Real-World Retrospective Cohort Study. AB - BACKGROUND AND OBJECTIVE: This real-world study assessed the prevalence, risk factors for, and incidence of seizures in patients with metastatic castration resistant prostate cancer (mCRPC). METHODS: Patients with mCRPC were selected from MarketScan Commercial and Medicare Supplemental Databases between 1 January 2009 and 31 July 2012. Prevalence of seizure risk factors were described separately and in combination with other risk factors. Seizure incidence was calculated overall and for each risk factor group. RESULTS: The most common risk factors were history of seizure threshold-lowering medication use (35%), history of loss of consciousness (6%), history of transient ischemic attack or cerebrovascular accident (2%), treated brain metastasis (0.9%), history of seizure (0.6%), and dementia (0.5%). Overall, seizure incidence was 1.8 per 100 person-years (PYs) (95% confidence interval [CI] 1.5-2.1), being higher among patients with at least one risk factor (2.8 per 100 PYs; 95% CI 2.2-3.4) than those without risk factors (1.2 per 100 PYs; 95% CI 1.0-1.6). Seizure incidence was highest among a few patients (0.6%) with a history of seizure (82.0 per 100 PYs; 95% CI 45.9-135.2) and within this small subpopulation, higher among those with a history of anticonvulsant use (120.9 per 100 PYs; 95% CI 60.3-216.3) than without anticonvulsant use (43.5 per 100 PYs; 95% CI 11.9-111.3). CONCLUSION: History of seizure is an important risk factor for seizure occurrence in patients with mCRPC, particularly in those with a history of anticonvulsant use. These findings improve understanding of the risk of seizure occurrence in patients with mCRPC, who are potential users of androgen receptor antagonists, including enzalutamide. PMID- 29027611 TI - Preparation of flexible bone tissue scaffold utilizing sea urchin test and collagen. AB - Gonads of sea urchin are consumed in Japan and some countries as food and most parts including its tests are discarded as marine wastes. Therefore, utilization of them as functional materials would reduce the waste as well as encourage Japanese fishery. In this study, magnesium containing calcite granules collected from sea urchin tests were hydrothermally phosphatized and the obtained granules were identified as approximately 82% in mass of magnesium containing beta tricalcium phosphate and 18% in mass of nonstoichiometric hydroxyapatite, i.e., a biphasic calcium phosphate, maintaining the original porous network. Shape controlled scaffolds were fabricated with the obtained biphasic calcium phosphate granules and collagen. The scaffolds showed good open porosity (83.84%) and adequate mechanical properties for handling during cell culture and subsequent operations. The MG-63 cells showed higher proliferation and osteogenic differentiation in comparison to a control material, the collagen sponge with the same size. Furthermore, cell viability assay proved that the scaffolds were not cytotoxic. These results suggest that scaffold prepared using sea urchin test derived calcium phosphate and collagen could be a potential candidate of bone void fillers for non-load bearing defects in bone reconstruction as well as scaffolds for bone tissue engineering. PMID- 29027612 TI - Penetrance of a rare familial mutation predisposing to papillary thyroid cancer. AB - Familial non-medullary thyroid cancer (FNMTC) is clinically defined as two or more first-degree relatives with NMTC and appears to follow an autosomal dominant inheritance pattern. Approximately 5-7% of NMTC is hereditary and affects multiple generations with a young age of onset. The primary aim of this study was to determine the age-specific penetrance of NMTC in individuals from a large family with FNMTC with a previously identified private mutation at 4q32, with a secondary aim to determine the penetrance for benign thyroid disease in this family. We present a large family with NMTC in which we had previously described a culpable mutation. Participants provided their personal medical history and family history. The germline 4q32 A > C mutation was detected in 34 of 68 tested individuals. Age-specific penetrance of thyroid cancer and benign thyroid disease was determined using the inverted Kaplan-Meier method of segregation analysis. Individuals who tested positive for the 4q32 mutation have a 68.9% (95% CI 46.5 88.7) risk of developing thyroid cancer by age 70 and a 65.3% (95% CI 46.0-83.8) risk of developing benign thyroid disease by age 70. The 4q32 A > C mutation significantly increases the risk to develop thyroid cancer but not benign thyroid disease in members of this family. The female:male sex ratio of 1.33 that we observed in affected mutation carriers differs greatly from the ratio of approximately 3:1 observed in PTC, supporting a central role of the mutation. Early thyroid surveillance with annual ultrasound is recommended to individuals testing positive for this private familial mutation. PMID- 29027613 TI - Both decreased Akt expression and mTOR phosphorylation are related to decreased neuronal differentiation in the hippocampal alveus of aged mice. AB - BACKGROUND: Aging is an inevitable process which results in many changes. These changes are closely related to the hippocampus which is in charge of long-term learning and episodic memory. AIM: This study was to investigate age-related changes of the cell proliferation, neuroblast differentiation and Akt/mTOR signaling in the hippocampal alveus of aged mice. METHODS: In the present study, we compared the differences of neurogenesis in the hippocampal alveus between adult (postnatal month 6) and aged (postnatal month 24) mice using immunohistochemistry and western blot analysis. RESULTS: The cell proliferation, neuroblast differentiation, and the increased astrocyte activation in the hippocampal alveus of mice were decreased in an age-dependent manner. In addition, during normal aging, the protein level of AKT, mTOR and the phosphorylation of mTOR were all decreased. However, the protein level of AKT was increased. DISCUSSION: These results indicate the neurogenesis in the immature neurons in the hippocampal alveus of aged mice was closely related to the normal aging process. In addition, during normal aging, the increased AKT phosphorylation and decreased mTOR phosphorylation in the hippocampus may play a role in aging development. CONCLUSION: The result indicates that increased activation of astrocyte, increased phosphorylation of AKT and decreased phosphorylation of mTOR may be involved in the decreased cell proliferation and neuroblast differentiation in the alveus of hippocampus of aged mice. PMID- 29027614 TI - Statistical crossover and nonextensive behavior of neuronal short-term depression. AB - The theoretical basis of neuronal coding, associated with short-term degradation in synaptic transmission, is a matter of debate in the literature. In fact, electrophysiological signals are commonly characterized as inversely proportional to stimulus intensity. Among theoretical descriptions of this phenomenon, models based on 1/f-dependency are employed to investigate the biophysical properties of short-term synaptic depression. In this work, we formulate a model based on a paradigmatic q-differential equation to obtain a generalized formalism useful for investigation of nonextensivity in this specific type of synaptic plasticity. Our analysis reveals nonextensivity in data from electrophysiological recordings and also a statistical crossover in neurotransmission. In particular, statistical transitions provide additional support to the hypothesis of heterogeneous release probability of neurotransmitters. On the other hand, the simple vesicle model agrees with data only at low-frequency stimulations. Thus, the present work presents a method to demonstrate that short-term depression is not only governed by random mechanisms but also by nonextensive behavior. Our findings also conciliate morphological and electrophysiological investigations into a coherent biophysical scenario. PMID- 29027615 TI - Assessment of the Role of Everolimus Therapy in Patients with Renal Cell Carcinoma Based on Daily Routine and Recent Research Results. AB - Everolimus is indicated for adults with metastatic renal cell carcinoma (mRCC) after failure of vascular endothelial growth factor receptor-tyrosine kinase inhibitors (TKI). Currently, the therapeutic applicability of EVE has been changing. Multicenter evaluation of efficacy and safety of everolimus in daily routine and definition of patient characteristics with favorable outcome. Data of 165 patients from 9 oncology institutes in Hungary were analyzed retrospectively. Everolimus therapy was used after one TKI in 10 mg starting dose. Physical and laboratory examinations and imaging tests were performed monthly and every 3 months, respectively. Median progression-free survival (PFS) was 5.4 months. Median overall survival (OS) was 16.2 months. PFS and OS results were more favorable in patients with ECOG 0-1 (p PFS = 0.033, p OS = 0.008) and after >9 months of TKI therapy (p PFS = 0.019, p OS = 0.045). Survival was longer in nonanemic patients with ECOG 0-1 than in anemic patients with ECOG 2-3, 30.9 and 7.7 months, respectively (p = 0.029). Dose reduction and treatment delay was required in 6.2% and 8.9% of patients, respectively. Common adverse events were exanthema, edema, stomatitis, anemia, and abnormal kidney functions and glucose levels. Results of this study show that everolimus is safe and efficacious in a real-world setting. Everyday practice showed that nonanemic patients with good performance status receiving TKI therapy for >9 months are favorable candidates for this treatment. Despite the efficiency of novel, registered drugs, everolimus still plays an important role during and after second-line therapy for mRCC when availability of modern remedies is limited. PMID- 29027616 TI - Hormone receptor-positive invasive lobular and ductal carcinoma of the breast have comparable hormone receptor expression levels both if detected by screening and clinically. PMID- 29027617 TI - Zebrafish as a model to study neuroblastoma development. AB - Neuroblastoma is a pediatric solid tumor arising from embryonic neural crest progenitor cells that normally generate the peripheral sympathetic nervous system. As such, the location of neuroblastoma tumors is correlated with the distribution of major post-ganglionic clusters throughout the sympathetic chain, with the highest incidence in the adrenal medulla or lumbar sympathetic ganglia (~65%). Neuroblastoma is an enigmatic tumor that can spontaneously regress with minimal treatment or become highly metastatic and develop resistance to aggressive treatments, including radiation and high-dose chemotherapy. Age of diagnosis, stage of disease and cellular and genetic features often predict whether the tumor will regress or advance to metastatic disease. Recent efforts using molecular and genomic technologies have allowed more accurate stratification of patients into low-, intermediate- and high-risk categories, thereby allowing for minimal intervention in low-risk patients and providing potential new therapeutic targets, such as the ALK receptor tyrosine kinase, for high-risk or relapsed patients. Despite these advances, the overall survival of high-risk neuroblastoma patients is still less than 50%. Furthermore, next generation sequencing has revealed that almost two-thirds of neuroblastoma tumors do not contain obvious pathogenic mutations, suggesting that epigenetic mechanisms and/or a perturbed cellular microenvironment may heavily influence neuroblastoma development. Understanding the mechanisms that drive neuroblastoma, therefore, will likely require a combination of genomic, developmental and cancer biology approaches in whole animal systems. In this review, we discuss the contributions of zebrafish research to our understanding of neuroblastoma pathogenesis as well as the potential for this model system to accelerate the identification of more effective therapies for high-risk neuroblastoma patients in the future. PMID- 29027618 TI - Moral Injury: Contextualized Care. AB - Amidst the return of military personnel from post-9/11 conflicts, a construct describing the readjustment challenges of some has received increasing attention: moral injury. This term has been variably defined with mental health professionals more recently conceiving of it as a transgression of moral beliefs and expectations that are witnessed, perpetrated, or allowed by the individual. To the extent that morality is a system of conceptualizing right and wrong, individuals' moral systems are in large measure developmentally and socially derived and interpreted. Thus, in seeking to provide care and aid in reintegration for combat veterans, it is necessary to consider communities that have contributed to an individual's formation and that might have participated in the interpretation of his/her suffering. This can take many forms, but given that morality is often complexly intertwined with issues of religion, faith, and spirituality for many individuals, and recognizing that much of the current focus on moral injury is emanating out of healthcare contexts, we devote particular attention to how chaplains might be more intentionally engaged in healthcare systems such as the Veterans Health Administration to provide non-judgmental, person-centered, culturally-relevant care rooted in communities of practice to veterans with moral injury. PMID- 29027619 TI - "Even Heroes Get Depressed": Sponsorship and Self-Stigma in Canada's Mental Illness Awareness Week. AB - In 1992, the Canadian Psychiatric Association launched Canada's first national campaign against mental illness, Mental Illness Awareness Week (MIAW). I stress that pharmaceutical sponsorship of the first five years of MIAW (1992-1997) was integral to shaping the trajectory of the campaign and marks a shift in the way stigma is conceived and resisted in Canada: what was an interpersonal process based on social norms becomes refigured as "self-stigma," or an individualized process in which lack of information, education, and self-assessment contribute to an inability to consider oneself as at-risk for a disease, condition, or disorder. PMID- 29027620 TI - Evaluation of the tolerability and efficacy of sodium polystyrene sulfonate for long-term management of hyperkalemia in patients with chronic kidney disease. AB - PURPOSE: Sodium polystyrene sulfonate (SPS) is a cation-exchanging resin that has been widely used for several decades as first-line therapy of mild chronic hyperkalemia in patients with chronic kidney disease (CKD). However, evidence to prove the long-term tolerability and efficacy of SPS for the treatment of this condition is still missing. METHODS: In this retrospective, observational study, we enrolled 26 outpatients with stages 3-4 CKD who received oral therapy with low dose SPS for mild chronic hyperkalemia in the Outpatient Nephrology clinic of our Department during 2010-2016. We obtained medical records on side effects potentially attributable to SPS use, and we analyzed the changes in serum electrolytes before and after the initiation of SPS therapy. RESULTS: Serum potassium levels fell from 5.9 +/- 0.4 to 4.8 +/- 0.5 mmol/l (P < 0.001) over a median follow-up of 15.4 months (range 3-27 months). SPS use was associated with a slight, but significant elevation in serum sodium levels (139.5 +/- 2.9 vs 141.2 +/- 2.4, P = 0.006), whereas serum calcium and phosphate remained unchanged before and after the initiation of SPS. We recorded ten episodes of recurrent serum potassium elevation >= 5.5 mmol/l, none of which required hospitalization or acute dialysis. No episode of colonic necrosis or any other serious drug related adverse event was observed. SPS therapy was well-tolerated, since only 1 out of 26 patients discontinued SPS at 3 months due to gastrointestinal intolerance. CONCLUSION: This study suggests that low-dose SPS is well-tolerated and can effectively normalize elevated serum potassium over several weeks in CKD outpatients with mild chronic hyperkalemia. PMID- 29027621 TI - Use of carboxyhemoglobin as a biomarker of environmental CO exposure: critical evaluation of the literature. AB - Carbon monoxide (CO) poisoning is the primary cause for access to emergency department (ED) services for more than 50,000 persons in Europe and the USA every year. CO poisoning diagnosis is based on multiple factors and is usually confirmed by high carboxyhemoglobin (COHb) levels in the blood. We conducted a systematic evaluation of literature to investigate the usefulness of COHb as a biomarker of environmental CO exposure. We conducted an electronic search in Medline, Embase, and the Cochrane Library databases. We selected studies reporting high or low environmental CO concentrations, as well as COHb levels in exposed subjects presenting in ED or staying at home. We included 19 studies, but only 7 studies reported environmental CO concentration and proved a correlation between COHb and CO exposure in healthy and non-smoker subjects only. However, confounding factors were often incompletely assessed. The main symptoms reported were headache, nausea, vertigo and vomiting. COHb data stored in healthcare databases were used in six studies and provided useful information about symptoms, CO sources and patient characteristics. Most studies were classified at risk of bias. This review indicates that COHb is the most commonly used biomarker to assess CO exposure and seems to be useful. Further studies are needed to establish the reliability of COHb as a biomarker and/or explore other possible biomarkers. Surveillance systems of the general population, correlated with geographical locations and other confounding factors, could be important for CO exposure monitoring and the development of focused prevention programs. PMID- 29027624 TI - Cerebrovascular Complications and Polycythaemia Vera. PMID- 29027622 TI - Minimally invasive techniques for lumbar decompressions and fusions. AB - PURPOSE OF REVIEW: The purpose of this study is to summarize the recent literature investigating the use of minimally invasive (MIS) techniques in the treatment of lumbar degenerative stenosis, spondylolisthesis, and scoliosis. RECENT FINDINGS: MIS lumbar decompression and fusion techniques for degenerative pathology are associated with reduced operative morbidity, shortened length of hospital stay, and reduced postoperative pain and narcotics utilization. Recent studies with long-term clinical follow-up have demonstrated equivalence in clinical outcomes between open and MIS surgical procedures. Radiographically, MIS procedures provide adequate postoperative correction of coronal alignment. Correction of sagittal alignment, however, is more variable based on current reports. MIS techniques are both safe and effective in the treatment of lumbar degenerative pathologies. While some studies have reported on long-term outcomes and costs associated with MIS procedures, more investigation into these topics is still necessary. Additionally, further work is required to analyze the training requirements and learning curves of MIS procedures to better promote adoption amongst surgeons. PMID- 29027623 TI - Prospective observational study on the first 51 cases of peripheral blood stem cell transplantation from unrelated donors in Japan. AB - The Japan Marrow Donor Program (JMDP) has facilitated unrelated peripheral blood stem cell transplantation (URPBSCT) since 2010. We conducted a prospective multicenter observational study to evaluate the feasibility of such transplantation. Between 2011 and 2014, 51 patients underwent URPBSCT from 8/8 allele-matched donors for hematological malignancies. The median age of the patients was 50 years; 21 had high-risk disease. Myeloablative conditioning regimens were used in 31 patients, and tacrolimus based graft-versus-host disease (GVHD) prophylaxis was used for all patients. The cumulative rate of engraftment was 96%. With a median follow-up period of 610 days for survivors, 100-day and 1 year overall survival rates were 86 and 59%, respectively. The cumulative incidence of non-relapse mortality and relapse at 1 year were 14 and 35%, respectively. The incidence of grade II to IV acute GVHD at 100 days and extensive type of chronic GVHD at 1 year were 25 and 32%, respectively. The probability of overall survival was comparable with that of bone marrow transplantation from HLA matched-unrelated donors in Japan, although the incidence of chronic GVHD was higher. Further follow-up with more patients is clearly warranted to establish the optimal use of URPBSCT together with the approaches of minimizing chronic GVHD. PMID- 29027625 TI - Serum C3 complement levels in ANCA associated vasculitis at diagnosis is a predictor of patient and renal outcome. AB - AIM: To determinate the prognostic significance of low serum C3 at the time of diagnosis of ANCA-associated vasculitis (AAV). METHODS: Our cohort included 75 consecutive patients with AAV diagnosed from January 2005 to December 2015. C3 levels were measured at the time of diagnosis. Patients were divided into two groups, those with low serum C3 levels (< 0.9 g/l) and those with normal serum C3 levels (0.9-1.8 g/l). We analysed association between serum C3 levels and both combined and singularly patient and renal survival (ESRD). Small number of relapsed patients did not allow for the statistical analysis to be performed as to weather the low serum C3 is associated with relapse rate in AAV patients. RESULTS: Low serum C3 levels were significantly associated with worse combined end-point patient and renal survival (HR 3.079; 95% CI 1.231-7.701; p = 0.016), and on multivariate adjusted analysis association remained significant (HR 2.831; 95% CI 1.093-7.338; p = 0.032). For both end-points individually low serum C3 levels were significantly associated with poorer patient survival (HR 6.378; 95% CI 2.252-18.065; p < 0.001; on multivariate adjusted analysis HR 4.315 95% CI 1.350-13.799; p = 0.014) and renal survival (HR 3.207; 95% CI 1.040-9.830; p = 0.043; on multivariate adjusted analysis HR 3.679; 95% CI 1.144-11.827; p = 0.029). In our study there was no significant association between serological and patohistological phenotypes and serum C3 levels. CONCLUSION: Lower serum C3 levels at the diagnosis is associated with poorer patient and renal outcomes in AAV patients. PMID- 29027627 TI - Association of TNF-alpha-3959T/C Gene Polymorphisms in the Chinese Population with Intracranial Aneurysms. AB - Recent studies have demonstrated that cytokines play an important role in the pathogenesis of intracranial aneurysm (IA). Tumor necrosis factor-alpha (TNF alpha) is an important proinflammatory cytokine, which was shown to influence the development of IA, but there is no research data from China. Hence, the purpose of this study was to explore the relationship between TNF-alpha polymorphisms and IA in China. The association of genetic variants of TNF-alpha gene expression was investigated in a Chinese population with IA. The TNF-alpha-3959T>C(rs1799964), 4127C>A(rs1800630), 4133C>T(rs1799724), 4184C>T(rs4248158), and 4752G>A(rs361525) gene polymorphisms in 192 IA cases and 112 controls were analyzed using polymerase chain reaction (PCR). Differences in genotype and allele frequencies between patients and controls were tested. There were no significant differences in 4127C>A (p = 0.072), 4133C>T (p = 0.373), 4184C>T (p = 0.749), and 4752G>A (p = 0.184) genotype frequencies between the IA group and the control group. But this case-control association study revealed that TNF-alpha-3959T>C (p < 0.001) was significantly associated with increased risk of IA. These results suggested that a novel TNF-alpha locus was found to be closely correlated with the occurrence of IA in Chinese. PMID- 29027629 TI - Combined analysis of the preoperative and postoperative prognostic nutritional index offers a precise predictor of the prognosis of patients with gastric cancer. AB - PURPOSE: The prognostic nutritional index (PNI) is considered useful for predicting the prognosis of patients with gastric cancer (GC). This retrospective study investigated the relationship between both the pre- and postoperative PNI and the prognosis of GC patients. METHODS: The subjects of this study were 254 patients who underwent curative surgery for histopathologically diagnosed GC. RESULTS: Patients were divided according to their pre- and postoperative PNI as follows: preoperative PNI of >= 52 (pre-PNIHigh), preoperative PNI of < 52 (pre PNILow), postoperative PNI of >= 49 (post-PNIHigh), and postoperative PNI of < 49 (pre-PNILow). Both pre- and postoperative PNI were significantly associated with GC prognosis. Patients were then divided as follows: group A, patients with pre PNIHigh and post-PNIHigh; group B, patients with either pre-PNIHigh and post PNILow or pre-PNILow and post-PNIHigh; and group C, patients with pre-PNILow and post-PNILow. The 5-year survival rates were 100.0, 83.0, and 67.1% for groups A, B, and C, respectively. Multivariate analysis indicated that the combination of pre- and postoperative PNI was an independent prognostic indicator. CONCLUSIONS: Combined analysis of the pre- and postoperative PNI offers accurate information about the prognosis of patients with GC. PMID- 29027630 TI - Plasma cell myeloma mimicking classical Hodgkin lymphoma in the bone marrow. PMID- 29027631 TI - Detrimental roles of TNF-alpha in the antiphospholipid syndrome and de novo synthesis of antiphospholipid antibodies induced by biopharmaceuticals against TNF-alpha. AB - Antiphospholipid syndrome (APS) is an autoimmune disease that is characterized by arterial and/or venous thrombosis and/or recurrent pregnancy losses. Obstetric APS (OAPS) is considered as a distinct entity from vascular APS (VAPS). In the absence of any additional disease, APS is designated as primary (PAPS), while the term secondary APS (SAPS) is used when other diseases are associated. Catastrophic APS (CAPS) is characterized by the rapid development of multiple thrombosis in various vital organs. The presence of antiphospholipid antibodies (aPL Abs) is considered as a laboratory criterion for APS diagnosis. aPL Abs cause an increase in systemic and decidual TNF-alpha levels in experimental model of APS (eAPS), while paradoxically, administration of TNF-alpha blockers has been associated with de novo synthesis of aPL Abs in patients with various autoimmune diseases. While eAPS provides evidence for the fact that application of TNF-alpha blockers has beneficial effects, lack of randomized prospective studies is the main obstacle for consideration of TNF-alpha blockers administration as a therapeutic option not for all, but at least for selected cases of APS patients despite compelling evidence for detrimental roles of TNF-alpha for both VASP and OAPS. This article represents a review of previously published reports on detrimental roles of TNF-alpha in APS, reports on the application of anti-TNF alpha agents in eAPS and articles that reported de novo synthesis of aPL Abs induced by biopharmaceuticals against TNF-alpha. PMID- 29027626 TI - Emerging roles for LPP in metastatic cancer progression. AB - LIM domain containing proteins are important regulators of diverse cellular processes, and play pivotal roles in regulating the actin cytoskeleton. Lipoma Preferred Partner (LPP) is a member of the zyxin family of LIM proteins that has long been characterized as a promoter of mesenchymal/fibroblast cell migration. More recently, LPP has emerged as a critical inducer of tumor cell migration, invasion and metastasis. LPP is thought to contribute to these malignant phenotypes by virtue of its ability to shuttle into the nucleus, localize to adhesions and, most recently, to promote invadopodia formation. In this review, we will examine the mechanisms through which LPP regulates the functions of adhesions and invadopodia, and discuss potential roles of LPP in mediating cellular responses to mechanical cues within these mechanosensory structures. PMID- 29027628 TI - The Prognostic Significance of Measurable ("Minimal") Residual Disease in Acute Myeloid Leukemia. AB - PURPOSE OF REVIEW: The purpose of this review was to evaluate recent literature on detection methodologies for, and prognostic significance of, measurable ("minimal") residual disease (MRD) in acute myeloid leukemia (AML). RECENT FINDINGS: There is no "one-fits-all" approach to MRD testing in AML. Most exploited to date are methods relying on immunophenotypic aberrancies (identified via multiparameter flow cytometry) or genetic abnormalities (identified via PCR based assays). Current methods have important shortcomings, including the lack of assay platform standardization/harmonization across laboratories. In parallel to refinements of existing technologies and data analysis/interpretation, new methodologies (e.g., next-generation sequencing-based assays) are emerging that eventually may complement or replace existing ones. This dynamic evolution of MRD testing has complicated comparisons between individual studies. Nonetheless, an ever-growing body of data demonstrates that a positive MRD test at various time points throughout chemotherapy and hematopoietic cell transplantation identifies patients at particularly high risks of disease recurrence and short survival even after adjustment for other risk factors. PMID- 29027632 TI - Let us talk about eggs! Professional resistance to elective egg vitrification and gendered medical paternalism. AB - In this paper, by applying a feminist bioethical perspective, we identify a new form of medical paternalism that still shapes contemporary legal policies on human egg cryopreservation performed without medical reasons. The fear of negligent, careless women who opt to delay their pregnancy for mere convenience is a widely known gender biased stereotype. Nevertheless, the opinions and judgments of medical professionals on this issue have not yet been sufficiently explored by in-depth research. In this essay, therefore, first we look at the broader bioethical, legal, and social aspects of human egg cryopreservation. In the second part of the paper we discuss a unique qualitative study conducted with professionals working at Hungarian IVF clinics. We argue, based on a bioethical analysis of the collected data, that when new reproduction technologies provide opportunities for women to widen their range of reproductive choices, the traditional forms of medical paternalism can be reinforced by gendered paternalism, as well. We identify several elements of gendered paternalism that characterized the attitudes of the IVF staff and discuss the professionals' resistance to elective egg freezing and vitrification of eggs for the future. We conclude by suggesting directions for future policy. Although we focus on the Hungarian case in this paper, we are aware that similar attitudes can be observed in some other countries where this technology has become available and requested by women, but where they also face difficulties in their access to it. PMID- 29027633 TI - Multi-Modality Imaging in the Evaluation and Treatment of Mitral Regurgitation. AB - OPINION STATEMENT: Mitral regurgitation (MR) is frequent and associated with increased mortality and morbidity when severe. It may be caused by intrinsic valvular disease (primary MR) or ventricular deformation (secondary MR). Imaging has a critical role to document the severity, mechanism, and impact of MR on heart function as selected patients with MR may benefit from surgery whereas other will not. In patients planned for a surgical intervention, imaging is also important to select candidates for mitral valve (MV) repair over replacement and to predict surgical success. Although standard transthoracic echocardiography is the first-line modality to evaluate MR, newer imaging modalities like three dimensional (3D) transesophageal echocardiography, stress echocardiography, cardiac magnetic resonance (CMR), and computed tomography (CT) are emerging and complementary tools for MR assessment. While some of these modalities can provide insight into MR severity, others will help to determine its mechanism. Understanding the advantages and limitations of each imaging modality is important to appreciate their respective role for MR assessment and help to resolve eventual discrepancies between different diagnostic methods. With the increasing use of transcatheter mitral procedures (repair or replacement) for high-surgical-risk patients, multimodality imaging has now become even more important to determine eligibility, preinterventional planning, and periprocedural guidance. PMID- 29027634 TI - A Randomized Controlled Trial to Assess the Impact of Proper Insulin Injection Technique Training on Glycemic Control. AB - INTRODUCTION: Improper injection technique can negatively affect glycemic control and treatment tolerability. We assessed the impact of structured insulin injection training on glycemic control. METHODS: We compared changes in glycated hemoglobin (A1C) and fasting plasma glucose following structured insulin injection training in a 6-month pilot study in patients with type 1 or 2 diabetes. Patients were recruited from mobile clinics in Moscow, Russia, and randomized into three groups. Groups 1 and 2 received structured injection training, and group 3 did not. Group 1 received 4-mm needles sufficient for each injection; groups 2 and 3 provided their own needle supply. Changes in insulin total daily dose (TDD), injection technique, needle reuse, and lipohypertrophy (LH) were assessed. RESULTS: Of 120 patients enrolled, 116 were included in all analyses (group 1, n = 43; group 2, n = 35; group 3, n = 38). At 6 months, mean [95% CI] reductions in A1C were significant in groups 1 and 2 (- 1.00% [10.9 mmol/mol (- 1.3 to - 0.6)] and - 1.00% [10.9 mmol/mol (- 1.4 to - 0.7)], respectively; P < 0.001 for both), but not in group 3 (- 0.02% [0.2 mmol/mol (- 1.2 to 1.6)]). Increases in insulin TDD, however, were similar and significant across groups (approximately 6 IU; P < 0.05). Injection technique improved, and needle reuse and LH declined in groups 1 and 2, but not in group 3. CONCLUSIONS: Little is known about the glycemic impact of insulin injection training. We found that structured training and the use of short pen needles can improve injection technique, leading to significant A1C reductions and decreased rates of LH. PMID- 29027636 TI - Polymorphisms in interleukins 17A and 17F genes and periodontitis: results from a meta-analysis. AB - Polymorphisms in inflammatory genes such as interleukins 17A and 17F are associated with the risk of development of periodontitis, although the results remain contradictory. Hence, the aim of this study was perform a meta-analysis focusing on two polymorphisms (rs2275913 and rs763780) in interleukins 17A and 17F genes, respectively, in both chronic (CP) and aggressive periodontitis (AgP). A review in literature was performed in several databases for studies published before 25, September 2016. The meta-analysis was obtained through the review manager statistical software (version 5.2) with odds ratio (OR) calculation and funnel plot (P < 0.05) for heterogeneity, as well as the comprehensive meta analysis software (version 3.3.070) for the assessment of publication bias. Seven articles with 1540 participants composed the results in which the mutant allele in the rs2275913 polymorphism did not present significant association with the risk of CP or AgP (OR 1.56, 95% CI 0.77, 3.15, P = 0.21; OR 1.12, 95% CI 0.05, 23.44, P = 0.94, respectively) nor was the mutant allele in rs763780 associated with the risk of CP (OR 1.19, 95% CI 0.80, 1.76, P = 0.39) or AgP (OR 1.07, 95% CI 0.63, 1.84, P = 0.79). No bias of publication was observed by Egger's and Begg's tests in any allelic evaluation. This meta-analysis showed a non significant association between the polymorphisms rs2275913 and rs763780 in interleukins 17A and 17F genes and chronic and aggressive periodontitis in the allelic evaluation. PMID- 29027637 TI - Vaccine adjuvants: smart components to boost the immune system. AB - Vaccination is an effective approach to prevent the consequences of infectious diseases. Vaccines strengthen immunity and make individuals resistant to infections with pathogens. Although conventional vaccines are highly immunogenic, they are associated with some safety issues. Subunit vaccines are safe, but they require adjuvants to stimulate the immune system because of their weaker immunogenicity. Adjuvants are entities incorporated into vaccines to increase the immunogenic responses of antigens. They play a crucial role in increasing the potency and efficacy of vaccines. Different adjuvants have different modes of action; therefore, a better understanding of their immunology could provide guidance for the development of novel adjuvants. Numerous studies have been conducted using different types of adjuvants to characterize their potency and safety; however, in practice, only few are used in human or animal vaccines. This review aims to introduce the different modes of action of adjuvants and give insight into the types of adjuvants that possess the greatest potential for adjuvanticity. PMID- 29027639 TI - Robotic laparoendoscopic single-site benign gynecologic surgery: a single-center experience. AB - The da Vinci Xi surgical system was released with several upgrades and modifications compared to the previous robotic generations to facilitate minimal invasive surgery. Herein, we present our preliminary experience of robotic laparoendoscopic single-site gynecologic surgery performed for benign indications with the da Vinci Xi robotic system in a single center. Thirty-five female patients underwent robotic single-site surgery between June 2016 and January 2017. The median console time for hysterectomy with or without salpingo oophorectomy was 41 min. The median intracorporeal vaginal cuff closure time was 18 min. Two cases (5.7%) were converted to robotic-assisted multiport surgery. There was one major intraoperative complication (2.9%). None of the patient required blood transfusion. When comparing our first 12 cases to subsequent 12 cases of R-LESS hysterectomy, there was a statistically significant decrease in surgical times and estimated blood loss. On logistic regression analysis, no association was detected between BMI and port entry time (OR 0.93, 95% CI 0.83 1.04, p = 0.23), console time (OR 0.98, 95% CI 0.94-1.02, p = 0.37), cuff closure time (OR 0.9, 95% CI 0.76-1.09, p = 0.33), operative time (OR 1, 95% CI 0.98 1.01, p = 0.97), and estimated blood loss (OR 0.98, 95% CI 0.96-1.01, p = 0.33). Our preliminary experience with robotic laparoendoscopic single-site surgery using the da Vinci Xi system has demonstrated feasibility and safety in select patients. Further studies with greater number of patients in multiple settings will help us to fully elucidate the role of da Vinci Xi surgical system in single site gynecologic surgery. PMID- 29027640 TI - The utility of botulinum toxin A in the repair of distal biceps tendon ruptures. AB - PURPOSE: The purpose of our study is to report the outcomes and complications in patients who underwent distal biceps tendon repair with the use of Botulinum toxin A (BoNT-A) as an adjunct to surgery. METHODS: A retrospective review of 14 patients who underwent 15 distal biceps tendon repairs was performed. All repaired tendons had their correlating muscle bellies injected intraoperatively with a mixture of 100U of BoNT-A and 10 ml of normal saline. Each patient was evaluated for surgical and post-operative complications and followed with Disabilities of the Arm, Shoulder and Hand (DASH) Disability Scores. RESULTS: The cohort was exclusively male, 14/14 (100%). The mean age at procedure was 52.1 years (range: 29-65 years). Types of injuries repaired included: 12 acute biceps tendon ruptures, one chronic partial (> 50% of tendon) biceps tear, and two chronic biceps ruptures. Average final follow-up was 32.9 months (SD: 19.6; range: 7.07-61.72). Average time to repair of chronic injury was 5.75 months (range: 2-12 months). There were no intraoperative complications, and all patients were discharged home on the day of surgery. Average DASH score at latest follow-up was 4.9 (range: 0.0-12.5). All patients had return of function of paralyzed muscle prior to final follow-up. One patient required an incision and drainage for a deep infection 1 week post-operatively, without any further complications. Another patient required operative removal of heterotopic ossification located around the tendon fixation site, which was the result of a superficial infection treated with antibiotics 2 weeks post-operatively. This patient later healed with improvement in supination/pronation range-of-motion and no further complications. CONCLUSIONS: Injection of BoNT-A is safe and effective to protect distal biceps tendon repair during the early phases of bone-tendon healing. CLINICAL RELEVANCE: BoNT-A may is safe and effective to protect distal biceps tendon repair. The utility of BoNT-A as an adjunct to surgical repair may be applicable to acute or chronic tears as well as repairs in the non-compliant patient without decreases in functional scores after return of function of the biceps muscle. LEVEL OF EVIDENCE: Level 4. PMID- 29027638 TI - Fluconazole versus mould-active triazoles for primary antifungal prophylaxis in adult patients with acute lymphoblastic leukemia: clinical outcome and cost effectiveness analysis. AB - This study evaluated the clinical and cost-effectiveness of prophylactic use of fluconazole versus mould-active triazoles (voriconazole and posaconazole) in adult patients with acute lymphoblastic leukemia (ALL). A decision analytical model was developed with inputs from a 7-year retrospective study (2009-2016) of 103 consecutive adult patients with ALL who received antifungal prophylaxis. Information on the administration of antifungal agents, clinical outcomes, and costs were collected. One-way sensitivity analyses and probabilistic sensitivity analysis were performed. The mould-active triazoles group was associated with higher life-years (3.71 vs 3.59) and lower total costs (US$4886 vs US$5722) per patient compared with fluconazole. One-way sensitivity analyses revealed that varying all of the key variables in the model did not affect the robustness of the results. Probabilistic sensitivity analysis demonstrated that mould-active triazoles had a probability of 77.1 and 90.1% of providing a dominant and cost effective option relative to fluconazole, respectively. Mould-active triazoles should be regarded as preferable to fluconazole as the first-line prophylactic for adult patients with ALL accompanied by uncommon severe vinca alkaloid-induced neurotoxicity. However, the results reported here should be interpreted with caution owing to the observational nature of the data. PMID- 29027641 TI - Cost Effectiveness of Imatinib, Dasatinib, and Nilotinib as First-Line Treatment for Chronic-Phase Chronic Myeloid Leukemia in China. AB - BACKGROUND AND OBJECTIVE: Tyrosine kinase inhibitors (TKIs) have obvious effects on chronic myeloid leukemia (CML), but they are expensive in China. Moreover, the overall cost of treatment of CML is high and the medical economic burden of patients with CML on the government is heavy. This study tested the cost effectiveness of imatinib, nilotinib, and dasatinib as first-line treatment in Chinese patients who were first diagnosed with chronic myeloid leukemia in the chronic phase (CML-CP). METHODS: A state-transition Markov model combining clinical effectiveness, utility, and cost data was used. Sensitivity analyses were conducted to determine the robustness of the model outcomes. RESULTS: The imatinib-first, dasatinib-first, and nilotinib-first strategy offered patients 9.76, 9.87, and 9.72 quality-adjusted life years (QALYs) at a cost of US$303,502.42, US$381,681.03, and US$305,509.92 over 20 years, respectively. The nilotinib-first strategy exhibited the lowest utility and highest price and was thus eliminated. An incremental cost-effectiveness analysis of the imatinib-first strategy and the dasatinib-first strategy showed that the dasatinib-first strategy yielded an incremental cost-utility ratio (ICER) of 710,714.64 $/QALY compared with the imatinib-first strategy, which exceeded the threshold; hence, the dasatinib-first strategy was not cost effective and was eliminated. The results were robust for multiple sensitivity analyses. CONCLUSION: From the perspective of the Chinese medical system, imatinib is likely to be more cost effective than dasatinib and nilotinib for patients who were first diagnosed with CML-CP. PMID- 29027643 TI - Contribution of Theory of Mind, Executive Functioning, and Pragmatics to Socialization Behaviors of Children with High-Functioning Autism. AB - Social difficulties are a key aspect of autism, but the intervening factors are still poorly understood. This study had two objectives: to compare the profile of ToM skills, executive functioning (EF), and pragmatic competence (PC) of children with high-functioning autism (HFA) and children with typical development (TD), and analyze their mediator role in social functioning. The participants were 52 children with HFA and 37 children with TD matched on age, intelligence quotient, and expressive vocabulary. Significant differences were found on measures of ToM, both explicit and applied, EF, and PC between children with HFA and TD. Multiple mediation analysis revealed that applied ToM skills and PC mediated the relations between autism symptoms and social functioning. Implications for social cognitive interventions to address these findings are discussed. PMID- 29027642 TI - Familial MPN Predisposition. AB - Chronic myeloproliferative neoplasms (MPN) characteristically arise from a somatic mutation in the pluripotent hematopoietic stem cell, and most common recurring mutations are in the JAK2, CALR, and cMPL genes. However, these mutations are not founder mutations, but mainly drive the disease phenotype and a pre-existing germline predisposition has been long speculated, but has not been clearly defined to date. Genome-wide association studies in family clusters of MPN have identified a number of genetic variants that are associated with increased germline risk for developing clonal MPN. The strongest association discovered so far is the presence of JAK2 46/1 haplotype, and subsequently, many studies have found additional variants in other genes, most notably in TERT gene. However, these still account for a small fraction of familial MPN, and more in depth studies including whole genome sequencing are needed to gain better insight into familial genetic predisposition of clonal MPNs. PMID- 29027645 TI - Preventive effect of pre-warming, hot compress, and pH adjustment in oxaliplatin induced venous pain. AB - Background Venous pain induced by peripheral intravenous administration of oxaliplatin remains clinically unresolved. Objective The aim of this study was to determine the efficacy of comprehensive intervention care for venous pain in colorectal cancer patients receiving oxaliplatin. Setting A Japanese tertiary hospital. Method We treated all outpatients after April 2012 with comprehensive intervention care including pre-warming of the oxaliplatin solution, use of a hot compress, and pH adjustment by combination with dexamethasone. We retrospectively reviewed the electronic medical records from colorectal cancer patients who had received oxaliplatin via a peripheral vein between December 2009 and June 2014. Main outcome measures The primary endpoint of this study was the incidence of venous pain at the administration site during oxaliplatin infusion, according to injection site reaction grade >= 2. Results We evaluated 271 treatment courses in 59 patients. Venous pain occurred in 42 courses (15.5%) among 26 patients. Multivariate logistic regression analysis revealed that female gender and body mass index >= 25 kg/m2 were significantly associated with an increased risk of venous pain during all courses (adjusted odds ratio [OR]: 3.18, 95% confidence interval [CI] 1.35-7.92; P < 0.01; and adjusted OR: 3.37, 95% CI 1.26-9.40; P = 0.02, respectively), whereas comprehensive intervention care were significantly associated with reduced risk of venous pain during all courses (adjusted OR: 0.10, 95% CI 0.02-0.44; P < 0.01). Conclusion Comprehensive intervention care is a clinical treatment option for oxaliplatin-induced peripheral venous pain in patients with colorectal cancer, especially females with obesity. PMID- 29027644 TI - Treatment of empty sella associated with visual impairment: a systematic review of chiasmapexy techniques. AB - PURPOSE: Chiasmapexy is a poorly described surgical procedure adopted to correct the downward displacement of suprasellar visual system (SVS) into an empty sella (ES) causing visual worsening. The aim of our study is to define the indications for extradural and intradural chiasmapexy. METHODS: A systematic literature review has been performed on MEDLINE database (US National Library of Medicine), including only articles that depicted cases of surgically treated patients affected by ES and progressive delayed visual worsening. Moreover, we have reported three cases of secondary ES syndrome (SESS) with visual worsening treated in our Department with transsphenoidal (TS) microsurgical intradural approach. Finally, we have compared the results of extradural and intradural chiasmapexy described in literature. RESULTS: The etiology of visual impairment is different in primary and secondary ESS. In primary ESS (PESS) the only predisposing factor is a dehiscence of diaphragma sellae, and the anatomical distortion caused by displacement of optic chiasm or traction of pituitary stalk and infundibulum may determine a direct injury of neural fibers and ischemic damage of SVS. In PESS the mechanical elevation of SVS performed through extradural approach is sufficient to resolve the main pathologic mechanism. In SESS, arachnoidal adhesions play an important role in addition to downward herniation of SVS. Consequently, the surgical technique should provide elevation of SVS combined to intradural release of scar tissue and arachnoidal adhesions. In treatment of SESS, the intradural approaches result to be more effective, guaranteeing the best visual outcomes with the lowest complications rates. CONCLUSIONS: The intradural chiasmapexy is indicated in treatment of SESS, instead the extradural approaches are suggested for surgical management of PESS. PMID- 29027646 TI - Prevalence of obstructive sleep apnea among obese toddlers and preschool children. AB - BACKGROUND: Obstructive sleep apnea (OSA) is a common disorder estimated at 1-5% in the school-aged children. With the obesity prevalence reaching staggering rates globally, OSA in obese adolescents is estimated to be 4-5-folds higher than their lean peers. There is a paucity of data regarding obesity-related OSA in children 6 years and less. This is particularly relevant as OSA is associated with neurocognitive deficits. The aim of this study is to evaluate the prevalence of OSA among obese toddlers and preschool children and further to determine what other factors may be associated with the presence of OSA. METHODS: A retrospective study involving children <=6 years, identified from two Canadian pediatric tertiary care centers who had an in-lab polysomnography (PSG). Obesity was defined by a BMI of > 95th percentile for age and gender or a z-score of > 2. OSA was diagnosed if the obstructive apnea-hypopnea index (OAHI) was greater than 2 events per hour. RESULTS: There were 60 participants included; the mean age was 4.4 years (standard deviation [SD] +/- 1.7), mean BMI z-score was 3.0 (SD +/- 1.2). Of these, 22/60 (36.6%) had OSA. Compared with the non-OSA group, the OSA group had a higher Epworth sleepiness score (p = 0.03) and were more likely to snore (p = 0.01). CONCLUSION: Young obese children should be assessed for OSA. A history of snoring and daytime sleepiness may be useful indicators to facilitate triage for a PSG, especially in resource-limited settings. PMID- 29027647 TI - Dasatinib-associated reversible demyelinating peripheral polyneuropathy in a case of chronic myeloid leukemia. AB - Tyrosine kinase inhibitors (TKIs) are essential for the treatment of chronic myeloid leukemia (CML). Adverse effects of dasatinib have been reported; however, few reports have highlighted the association between dasatinib and demyelinating peripheral neuropathy (DPN). We report a patient with CML who developed acute onset of DPN associated with dasatinib therapy. A 46-year-old Japanese woman was treated with dasatinib for 7 months after the diagnosis of CML and she achieved a major molecular response (MMR). However, dysphagia, hoarseness, and muscle weakness progressively developed over 2 weeks. Nerve conduction studies revealed extensive demyelinating changes. Dasatinib was discontinued and the patient received intravenous immunoglobulin (IVIg), resulting in resolution of the symptoms. However, 1 month after the re-initiation of dasatinib therapy, muscle weakness developed again, indicating possible involvement of dasatinib in the development of DPN. She was then treated with IVIg, followed by prednisolone and nilotinib instead of dasatinib. These treatments eventually led to improvements of the symptoms and helped her achieve an MMR. This case suggests that dasatinib may carry risks of DPN possibly through immune-mediated disorders. It is clinically important to realize that dasatinib can cause extensive DPN, and a quick discontinuation and a switch to another TKI may be indicated. PMID- 29027648 TI - Prevention of Type 2 Diabetes with the Chinese Herbal Medicine Tianqi Capsule: A Systematic Review and Meta-Analysis. AB - INTRODUCTION: Prevention of the rapid growth in incidence of type 2 diabetes (T2DM) is a big challenge for clinicians. In China, many trials have indicated that Tianqi capsule, which contains several Chinese herbal medicines as part of a large healing system called traditional Chinese medicine, could decrease the incidence of T2DM. The review assessed the effectiveness of Tianqi capsule in prevention of T2DM. METHODS: Seven electronic databases were searched to identify eligible trials published from the inception of the databases up until May 1, 2017. Randomized controlled trials (RCTs) of Tianqi capsule for impaired glucose tolerance (IGT) were included. Data extraction and quality assessment were performed according to the Cochrane review standards. A random or a fixed effect model was used to analyze outcomes which were expressed as risk ratios (RRs) or mean differences (MD), and I 2 statistics were used to assess heterogeneity. RESULTS: Six trials were identified that included 1027 subjects. Meta-analysis showed that subjects who received Tianqi capsule plus lifestyle modification (LM) were less likely to progress to T2DM compared to controls (RR 0.55, 95% CI 0.44 0.68). Subjects who received Tianqi capsule plus LM were more likely to have glucose return to normal compared to controls (RR 0.69; 95% CI 0.62-0.78); and they had reduced fasting plasma glucose (FBG) (MD - 0.35; 95% CI - 0.55 to - 0.16) and 2-h plasma glucose (2 h PG) (MD - 1.04; 95% CI - 1.75 to - 0.32). There was no statistical difference between the two groups for IGT stabilized incidence (RR 0.89; 95% CI 0.71-1.12). No obvious adverse events occurred. CONCLUSION: In patients with IGT, Tianqi capsule reduced the risk of progression to T2DM and increased the possibility of regression toward normoglycemia. As a result of the limited number of RCTs and the methodological drawbacks of the included studies, the results should be interpreted with caution. PMID- 29027650 TI - Correction to: Role of intestinal microbiome in American ginseng-mediated colon cancer prevention in high fat diet-fed AOM/DSS mice. AB - This article was originally published with the wrong title. PMID- 29027651 TI - Syndesmis aethopharynx Westervelt & Kozloff, 1990 (Rhabdocoela: Umagillidae): a revisitation supported by scanning electron microscopy and molecular analyses. AB - Species of Syndesmis Francois, 1886 are rhabdocoel platyhelminths typically found in echinoids. Our knowledge of this group is based on old and insufficient studies, generally representing light microscopy-based species descriptions. Syndesmis aethopharynx Westervelt & Kozloff, 1990 is an understudied endosymbiont of Paracentrotus lividus (Lamarck), which is likely to have been confused with the type-species, i.e. Syndesmis echinorum Francois, 1886, in the literature. In this work, S. aethopharynx is revisited based on new data on surface morphology and phylogeny and basic ecological data are provided. Scanning electron microscopy analysis revealed that the whole ventral region of the worm is equipped with cilia, which supports the assumption that the unciliated epidermal area reported for some species of umagillids, likewise endosymbiotic in echinoderms, is an apomorphy. Following the results of the molecular phylogenetic analysis, species of Syndesmis are closely-related to symbionts of other echinoderms, i.e. holothurians, and like them, may have evolved from some free living or symbiotic Provorticidae ancestor. Syndesmis spp. may stand for a key group in studying the evolution of feeding strategies in rhabdocoels, as their phylogenetic position is between intestinal and coelomic symbionts, and since both the digestive tube and perivisceral fluid were recorded as sites of infection. The infection levels were low, likely reflecting the aggregated distribution of the host and the fragile nature of the symbiont. PMID- 29027649 TI - Sex-Specific Effects of Combined Exposure to Chemical and Non-chemical Stressors on Neuroendocrine Development: a Review of Recent Findings and Putative Mechanisms. AB - PURPOSE OF REVIEW: Environmental toxicants and psychosocial stressors share many biological substrates and influence overlapping physiological pathways. Increasing evidence indicates stress-induced changes to the maternal milieu may prime rapidly developing physiological systems for disruption by concurrent or subsequent exposure to environmental chemicals. In this review, we highlight putative mechanisms underlying sex-specific susceptibility of the developing neuroendocrine system to the joint effects of stress or stress correlates and environmental toxicants (bisphenol A, alcohol, phthalates, lead, chlorpyrifos, and traffic-related air pollution). RECENT FINDINGS: We provide evidence indicating that concurrent or tandem exposure to chemical and non-chemical stressors during windows of rapid development is associated with sex-specific synergistic, potentiated and reversed effects on several neuroendocrine endpoints related to hypothalamic-pituitary-adrenal axis function, sex steroid levels, neurotransmitter circuits, and innate immune function. We additionally identify gaps, such as the role that the endocrine-active placenta plays, in our understanding of these complex interactions. Finally, we discuss future research needs, including the investigation of non-hormonal biomarkers of stress. We demonstrate multiple physiologic systems are impacted by joint exposure to chemical and non-chemical stressors differentially among males and females. Collectively, the results highlight the importance of evaluating sex-specific endpoints when investigating the neuroendocrine system and underscore the need to examine exposure to chemical toxicants within the context of the social environment. PMID- 29027652 TI - Correction to: Tumor Volume Doubling Time as a Dynamic Prognostic Marker for Patients with Hepatocellular Carcinoma. AB - The original version of this article unfortunately contained an error in corresponding author e-mail. It was submitted and published as kimkim70@amc.seoul.kr instead of kimkm70@amc.seoul.kr. PMID- 29027653 TI - Comparison of dexmedetomidine and fentanyl to prevent haemodynamic response to skull pin application in neurosurgery: double blind randomized controlled trial. AB - BACKGROUND: Skull pin application during craniotomy is a highly noxious stimulus. Therefore, the attenuated effect between dexmedetomidine and fentanyl was investigated. METHOD: A randomized, double-blind controlled trial included sixty patients, randomly allocated into groups A and B. After patients entered the operative room, blood pressure and heart rate were measured (T1). At 5 minutes after propofol induction (T2), group A received dexmedetomidine 1 ug kg-1 whereas group B received normal saline. At 3 minutes before skull pin insertion (T3), group B received a single bolus of fentanyl 1 ug kg-1 whereas group A received normal saline. The hemodynamic responses were recorded at 1 minute before skull pin insertion (T4), during skull pin insertion (T5), then repeated every minute for 5 minutes (T6-T10). RESULTS: Controlling blood pressure in the dexmedetomidine group (Group A) was better than in the fentanyl group (Group B) at T4 and T10 (P < 0.05) and T5-T8 (P < 0.01) for systolic blood pressure whereas diastolic blood pressure was significantly different at T4 and T8 (P < 0.05) and T5-T7 (P < 0.01). Mean arterial pressure, also was better controlled in group A at T4 and T10 (P < 0.05) and T5-T8 (P < 0.01). The heart rate in group A was lower than group B at T9 (P < 0.05) and T3-T6 (P < 0.01). Regarding adverse events, 11 hypertensive and 2 hypotensive responses occurred in group B whereas group A just only had 7 incidences of hypotension. CONCLUSION: The attenuated effect of dexmedetomidine infusion is significantly greater than fentanyl infusion. PMID- 29027654 TI - Pharmacokinetic drug-drug interactions in the intensive care unit - single-centre experience and literature review. AB - BACKGROUND: Drug-drug interactions constitute a serious health hazard in everyday clinical practice in critically ill patients. Drug-drug interactions may be pharmacokinetic or pharmacodynamic in their nature. We aimed to investigate the quantity and quality of possible drug-drug interactions, and their possible side effects in intensive care unit patients in a 12-month period. METHODS: This retrospective study covered data on pharmacological treatment of 43 consecutive patients (11 females, 32 males) aged 62 +/- 15 years, hospitalized between January 2015 and February 2016. Pharmacokinetic DDIs were identified and graded. Only severe and clinically important drug-drug interactions were subjected for further analysis. RESULTS: Median baseline SAPS III was 53 (IQR 38-67) points. Median intensive care unit stay was 12 (6-25) days. Subjects were treated with a median number of 22 (12-27) drugs. We identified 27 (16-41) possible drug-drug interactions per patient, including 3 (1-7) drug-drug interactions of a severe grade. The total number of severe and clinically important drug-drug interactions was 253 of which 227 were analyzed in detail. No possible side-effects of drug drug interactions were identified. CONCLUSIONS: DDIs as well as their side effects are challenging regarding their precise evaluation, especially due to the need for multidrug treatment in critically ill patients. Concentration-controlled therapy should be recommended, especially for treatment with vancomycin, digoxin and valproate. Pantoprazole should be a proton pump-inhibitor of choice. Drug dose modification is necessary in combined treatment with fluconazole and amiodarone or rifampicin. From a clinical point of view, the most important impact of drug-drug interactions is on antibiotic treatment effectiveness, especially with meropenem when valproate is also prescribed. PMID- 29027655 TI - Determinants of immediate failure of noninvasive mechanical ventilation outside the intensive care unit. AB - BACKGROUND: This study aimed to characterize which are the early determinants of immediate failure of the use of noninvasive mechanical ventilation (NIMV) outside the ICU. METHODS: This prospective study included patients who were admitted to the Military Hospital in Guayaquil, Ecuador. Each variable was analyzed independently by using a multiple logistic regression model toward establishing an association with the event. RESULTS: A total of 249 cases of NIMV over a 10 year period of its application outside the ICU was included in the study. Fifty five (22.10%) patients were transferred to the ICU, A multivariate analysis showed that the determinants of immediate NIMV failure outside the ICU were the following: age (OR: 1.12; P = 0.03); SBP (OR: 1.04; P = 0.001); HR (OR: 1.66; P < 0.0001); pCO2 (OR: 1.16; P = 0.007); pO2 (OR: 1.35; P = 0.003); levels of IPAP (OR: 1.35; P < 0.0001); and the number of quadrants affected, as shown in a chest X-ray (OR: 1.40; P < 0.0001). CONCLUSIONS: The number of affected quadrants in a chest X-ray, tachyarrhythmia and hypoxemia may be useful in the initial decision in the use of NIMV outside the ICU. High values of IPAP, the persistence of elevated pCO2, arterial hypotension, and age could be useful as a second screening associated with immediate NIMV failure outside the ICU. PMID- 29027657 TI - Practical issues of nutrition during continuous renal replacement therapy. AB - Continuous renal replacement therapy (CRRT) in critically ill patients has significant impact on one's ability to provide efficient nutritional therapy. CRRT may help in the prevention of intestinal oedema and the maintenance of the proper function of the gastrointestinal tract by enabling strict control of the fluid balance. It facilitates early introduction of nutrition via the enteral route, as well as allowing for the composition of high-volume feeding mixtures. It is necessary to take into consideration that during CRRT, together with blood purification of toxic substances, nutritive elements are also eliminated to some extent (micro- and macronutrients). In this article, the authors discuss the impact of CRRT on nutritive elements loss, energetic balance and present the principles of adjusting feeding prescriptions to changes implied by CRRT. PMID- 29027656 TI - Pulmonary complications after non-cardiac surgeries: temporal patterns and risk factors. AB - BACKGROUND: Postoperative complications are the primary determinants of survival following major surgery. We aimed to characterize the early perioperative risk factors for postoperative pulmonary complications (POPCs) in patients undergoing major non-cardiac surgeries. METHODS: This study utilized a multicenter prospective observational cohort design. Adult patients undergoing non-cardiac surgeries and admitted to 21 Brazilian ICUs were screened for inclusion in the study. POPCs were defined as the presence of acute pulmonary oedema, nosocomial pneumonia, and extubation failure in the postoperative period. RESULTS: Of the 581 patients enrolled, 110 (19%) had at least one POPC, of whom 5% had acute pulmonary oedema, 10% extubation failure while 10% had pneumonia. Most cases of pulmonary oedema occurred in the first week after surgery, while pneumonia was more frequently a later occurrence. The mortality rate was significantly higher in the group with POPCs compared to the group of patients without POPCs (62% vs. 11%, RR: 5.1, 95% CI: 4.23-7.69; P < 0.001). A low functional capacity (RR: 4.6, 95% CI: 2.1-10.0), major surgery (RR: 3.6, 95% CI: 1.2-10.7), preoperative hemodynamic instability (RR: 3.4, 95% CI: 1.1-10.6), alcoholism (RR: 3.3, 95% CI: 1.0-10.7), unplanned surgery (RR: 2.3, 95% CI: 1.0-5.2), the SOFA score (RR: 1.1, 95% CI: 1.0-1.2), and increased central venous pressure (RR: 1.1, 95% CI: 1.0 1.1) were independent predictors of POPCs. CONCLUSIONS: Pulmonary complications are common in intensive care units after major non-cardiac surgeries. Awareness of the risk factors for POPCs may help multidisciplinary teams develop strategies to prevent these complications. PMID- 29027658 TI - Pathological drainage of the right superior vena cava into the left atrium diagnosed in a 37-year-old patient in postpartum period: a case report. PMID- 29027659 TI - A novel cotton WRKY gene, GhWRKY6-like, improves salt tolerance by activating the ABA signaling pathway and scavenging of reactive oxygen species. AB - WRKY transcription factors are transcriptional regulators of signaling pathways involved in biotic and abiotic stress responses. In this study, we report that ectopic expression of the GhWRKY6-like gene significantly improved salt tolerance in Arabidopsis thaliana while silencing the GhWRKY6-like increase the sensitivity to abiotic stresses in cotton. GhWRKY6-like was localized to the nucleus. Expression of GhWRKY6-like was remarkably induced by salt, polyethylene glycol (PEG) and abscisic acid (ABA) treatments. For further characterization, the GhWRKY6-like gene was cloned and transformed into Arabidopsis. Our findings showed that the germination rate and root length were significantly improved in plants overexpressing GhWRKY6-like vs wild type (WT) under salt, mannitol and ABA treatments. Additionally, the overexpressing lines showed greater salt tolerance than WT plants in soil. In addition, overexpressing plants accumulated less H2 O2 and malondialdehyde (MDA), while higher proline content, superoxide dismutase (SOD) and peroxidase (POD) activities were detected under salt and osmotic stresses. In contrast, virus-induced gene silencing (VIGS) of GhWRKY6-like in cotton showed enhanced sensitivity compared to WT plants during salt and drought stresses. Additionally, expression analysis of stress-responsive genes in GhWRKY6 like Arabidopsis revealed that there was increased expression of genes involved in the ABA signaling pathway (AtABF4, AtABI5 and AtMYC2) and osmotic stress (AtSOS2, AtRD29a and AtRD29b). Our results revealed that GhWRKY6-like enhanced salt tolerance in Arabidopsis by scavenging reactive oxygen species and regulating the ABA signaling pathway. We suggest that overexpression of the GhWRKY6-like gene in cotton will enhance tolerance against salt, drought and osmotic stresses. PMID- 29027661 TI - Negotiating Ethical Paradoxes in Conducting a Randomized Controlled Trial: Aligning Intervention Science with Participatory Values. AB - In this article, we describe ethical tensions we have faced in the context of our work as intervention scientists, where we aim to promote social justice and change systems that impact girls involved in the juvenile legal system. These ethical tensions are, at their core, about resisting collusion with systems of control while simultaneously collaborating with them. Over the course of designing and implementing a randomized controlled trial (RCT) of an ecological advocacy intervention for girls, called ROSES, ethical paradoxes crystalized and prompted us to engage in critical reflection and action toward the aim of moving away from conducting research on legal-system-involved girls and moving toward a more democratic, participatory process of inquiry with girls. Our experience revealed two intertwined paradoxes that ultimately served generative purposes. First, in collaborating with legal system stakeholders, we observed a single story of girls' pathology narrated for girls, without girls, and ultimately internalized by girls. Second, in reflecting critically on the ethical implications of our study design, it became clear that the design was grounded in a medical model of inquiry although the intervention we sought to evaluate was based, in part, on resistance to the medical model. We describe emergent ethical tensions and the solutions we sought, which center on creating counternarratives and counterspaces that leverage, extend, and disrupt our existing RCT. We detail these solutions, focusing on how we restructured our research team to enhance structural competence, shifted the subject of inquiry to include the systems in which youth are embedded, and created new opportunities for former research participants to become co-researchers through formal roles on an advisory board. PMID- 29027662 TI - Prediction and scale in savanna ecosystems. AB - Contents Summary 52 I. Introduction 52 II. Determinants of savanna vegetation structure 53 III. Are trees in savannas really more heterogeneous? 53 IV. Are trees in savannas a 'slow' variable? 54 V. Are trees in savannas spatially patterned? 55 VI. Conclusions 55 Acknowledgements 55 References 56 SUMMARY: Savannas are highly variable systems, and predicting variation, especially in the tree layer, represents a major unresolved challenge for forecasting biosphere responses to global change. Prediction to date has focused on disentangling interactions between resource limitation and chronic disturbances to identify what determines local savanna vegetation heterogeneity. By focusing at too fine a scale, this approach overlooks: sample size limitation arising from sparse tree distributions; stochasticity in demographic and environmental processes that is preserved as heterogeneity among tree populations with slow dynamics; and spatial self-organization. Renewed focus on large (1-50 ha) permanent plots and on spatial patterns of tree-layer variability at even larger landscape spatial scales (>=1000s of ha) promises to resolve these limitations, consistent with the goal of predicting large-scale biosphere responses to global change. PMID- 29027660 TI - Maternal emotion dysregulation, parenting stress, and child physiological anxiety during dark-enhanced startle. AB - Maternal emotion dysregulation (ED) plays a crucial role in the development of psychopathology in children. The current study aimed to investigate parenting stress as a mediator of the relationship between maternal emotion dysregulation and child startle potentiation, with child sex as a moderator. Mothers were interviewed to obtain self-report of maternal ED and parenting stress and child's dark-enhanced startle (DES) response was measured using electromyographic recordings of the eye-blink muscle during the delivery of acoustic probes. We found that maternal ED was positively correlated with both her parenting stress and her child's DES. A bootstrap analysis yielded a full mediation of the association between ED and child DES via parenting stress. Child sex was not a significant moderator of these relationships. These results suggest that maternal ED has important consequences for the intergenerational transmission of risk and also highlight the interaction of behavioral and biological mechanisms of risk. PMID- 29027663 TI - The role of cardiac vagal tone and inhibitory control in pre-schoolers' listening comprehension. AB - This study investigated the role of basal cardiac activity and inhibitory control at the beginning of the school year in predicting oral comprehension at the end of the year in pre-schoolers. Forty-three, 4-year-olds participated in the study. At the beginning of the school year children's electrocardiogram at rest was registered followed by the assessment of inhibitory control as well as verbal working memory and verbal ability. At the end of the year all children were administered a listening comprehension ability measure. A stepwise regression showed a significant effect of basal cardiac vagal tone in predicting listening comprehension together with inhibitory control and verbal ability. These results are among the first to show the predictive role of basal cardiac vagal tone and inhibitory control in pre-schoolers' oral text comprehension, and offer new insight into the association between autonomic regulation of the heart, inhibitory control, and cognitive activity at a young age. PMID- 29027664 TI - Navigating Community Development Conflicts: Contested Visions of Poverty & Poverty Alleviation. AB - This article explores an ethical dilemma that arose from the author's involvement in a project intended to identify and address the needs of seven batey communities in the Dominican Republic. In the summer of 2014, the author conducted a large-scale needs assessment to inform strategic planning for a foundation that was invested in community development work in those communities. Through a collaborative process, the author worked with the foundation, representatives of the migrant communities, and other researchers to develop survey and focus group tools that were administered to 1,360 and 54 people, respectively. Data collection, analysis, and dissemination proceeded as planned. The conflict and resulting ethical dilemma emerged at the point of data interpretation and strategic planning, processes that revealed that the different parties held conflicting theories of poverty. The ideological conflicts related to why poverty exists, who is responsible for it, and what should be done about it made proceeding with the project ethically tenuous for the author. The author describes the values and theories of ethics on which she relied to navigate this challenge, as well as reflections on her continued participation in the community development process. PMID- 29027665 TI - Impact of Digital Technologies on Novel Endpoint Capture in Clinical Trials. AB - Digital technologies have been successfully deployed in clinical settings for many years, yet recent advances in hardware and analytic capabilities have driven an explosion in interest over the potential of digital medicine to change how drugs are developed, centering on how we interact with patients, treat patients, and capture information about patients. PMID- 29027666 TI - Alexander George Karczmar (1917-2017). AB - The neurochemistry community at large and the Advisory Board of The International Symposia on Cholinergic Mechanisms mourn the loss of Alexander George Karczmar, the elected Honorary President of these international symposia, who passed away peacefully in his Chicago home at the age of 100 on August 17, 2017. For many of us Alex was the essence of cholinergic signaling, and personified its versatile power to send messages between the brain and the peripheral tissues and organs, and to connect between body and soul. PMID- 29027667 TI - Co-inhibitory profile and cytotoxicity of CD57+ PD-1- T cells in end-stage renal disease patients. AB - Blockade of the CD80/86-CD28 pathway by belatacept after kidney transplantation is associated with an increased risk of rejection compared with standard, calcineurin inhibitor (CNI)-based therapy. CD28- T cells, which express CD57, are not susceptible to belatacept treatment. High numbers of CD4+ CD57+ programmed death 1 (PD-1)- T cells pretransplantation have been associated with a higher chance of rejection, although conflicting data have been reported. To investigate the working mechanism behind this possible higher chance of rejection, we studied the expression of co-inhibitory molecules (CD223, CD244 and PD-1), proliferative capacity and cytotoxic potential of fluorescence activated cell sorted (FACS) CD4+ CD57+ PD-1- and CD8+ CD57+ PD-1- T cells, and their CD57- control populations, after alloantigen stimulation. The effect of belatacept on the cytotoxic capacity of pretransplantation peripheral blood mononuclear cells from 20 patients who received belatacept post-transplantation was also tested. Expression of co-inhibitory molecule CD223 increased by approximately 10-fold after allogeneic stimulation in all four T cell subsets. Proliferation and up regulation of CD244 and PD-1 was observed for CD4+ CD57- PD-1- T cells after allogeneic stimulation, but no up-regulation of these markers occurred on CD8+ T cells or CD4+ CD57+ PD-1- T cells. However, CD4+ CD57+ PD-1- T cells and, to a lesser extent, CD8+ CD57+ PD-1- T cells displayed higher cytotoxicity as indicated by granzyme B expression. Belatacept inhibited the cytotoxic potential of CD4+ CD57+ PD-1- T cells (median of inhibition 31%, P < 0.01) and CD8+ CD57+ PD-1- T cells (median of inhibition 10%, P < 0.05). In conclusion, alloantigen activated CD4+ CD57+ PD-1- T cells exhibited a less proliferative but more cytotoxic profile than their CD57- counterparts. Their cytotoxic capacity can be inhibited partly by belatacept and was not associated with development of rejection after kidney transplantation. PMID- 29027668 TI - Decreased sorbitol synthesis leads to abnormal stamen development and reduced pollen tube growth via an MYB transcription factor, MdMYB39L, in apple (Malus domestica). AB - Sugars produced by photosynthesis not only fuel plant growth and development, but may also act as signals to regulate plant growth and development. This work focuses on the role of sorbitol, a sugar alcohol, in flower development and pollen tube growth of apple (Malus domestica). Transgenic 'Greensleeves' apple trees with decreased sorbitol synthesis had abnormal stamen development, a decreased pollen germination rate and reduced pollen tube growth, which were all closely related to lower sorbitol concentrations in stamens. RNA sequencing and quantitative RT-PCR analyses identified reduced transcript levels during stamen development and pollen tube growth in the transgenic trees of a stamen-specific MYB39-like transcription factor, MdMYB39L, and of its putative target genes involved in hexose uptake, cell wall formation and microsporogenesis. Suppressing MdMYB39L expression in pollen via antisense oligonucleotide transfection significantly reduced the expression of its putative target genes and pollen tube growth. Exogenous sorbitol application during flower development partially restored MdMYB39L expression, stamen development, and pollen germination and tube growth of the transgenic trees. Addition of sorbitol to the germination medium also partially restored pollen germination and tube growth of the transgenic trees. We conclude that sorbitol plays an essential role in stamen development and pollen tube growth via MdMYB39L in apple. PMID- 29027669 TI - Changes in Public Attitudes and Perceptions about Homelessness Between 1990 and 2016. AB - Public attitudes on homelessness can and has influenced policies and services for homeless populations. This study surveyed national public attitudes about homelessness in the 21st century and examined changes in attitudes in the past two decades. An online survey of public attitudes about homelessness was conducted with 541 U.S. adults across 47 states in November 2016 using Amazon Mechanical Turk. Survey results were compared to two public surveys conducted in 1990. Compared to previous surveys, the current sample endorsed more compassion, government support, and liberal attitudes about homelessness. The largest changes were related to increased support for homeless individuals to use public spaces for sleeping and panhandling. When asked about the demographic composition of the homeless population, the contemporary sample tended to overestimate the proportions who were young and racial/ethnic minorities, while underestimating the proportions who were married, or had mental health or substance abuse problems. Together, the findings suggest there has been an increase in compassion and liberal attitudes toward homelessness in the past two decades. Greater support for homeless individuals during an era of economic recessions and governmental homeless initiatives presents opportunities for new public health approaches to address homelessness. PMID- 29027670 TI - Chiari-like malformation in two cats. AB - Two male, neutered, domestic, shorthaired cats were evaluated for progressive paresis and ataxia. Neurological examinations suggested a spinal cord lesion in each case. Complete blood examination and cerebrospinal fluid analysis were unremarkable in both cats. MRI revealed malformation of the occipital bone with herniation of the cerebellar vermis through the foramen magnum but without syringomyelia. Chiari-like malformation was suspected in both patients. MRI repeated one year later in both cats because of progression of clinical signs yielded the same findings as the initial scans. Foramen magnum decompression in one cat was associated with resolution of clinical signs. PMID- 29027671 TI - Ethical Challenges of Personal Disclosure in Gaining Entry with Religious Congregations. AB - This is a story about learning how to navigate my social identities as a non religious gay man attempting to conduct data-based consultation with a religious congregation. Beyond my own growth in knowing myself better, this story speaks to the larger ethical challenge of how we build trust in community relationships, and in particular how much of our personal selves we need to disclose in the process of an individual or group deciding to work with us. Individuals and groups make decisions to work with us based on who they perceive us to be; thus, what is our ethical obligation to disclose aspects of who we are to promote full informed consent? To illustrate this ethical challenge of personal disclosure, I tell the story of discussions I had with three different religious leaders and a congregational committee about potentially working together. Throughout these stories, I reflect on my own messy process of growth as a window into the more general question of how we navigate our identities and values as community psychologists in the work we do with communities. PMID- 29027672 TI - Inside-Out: Representational Ethics and Diverse Communities. AB - The purpose of this paper is to write about insights and special considerations for researchers who are, to some degree, "insiders" to the communities they study by expanding on the concept of representational ethics as applied to research in community psychology with diverse and marginalized groups. Representational ethics refers to the ways that researchers, artists, or corporations represent the identities of the people they portray in their communications. As community psychologists we generate and disseminate knowledge about the communities we work with, and in that process, create narratives about the people who participate in our studies. In preparing a report on psychological issues among Evangelical Christian refugees from the former Soviet Union, Dina Birman struggled with her portrayal of this group and her own status of being both an insider and an outsider to this community. When investigating academic aspirations and psychological distress among Muslim high school students, Ashmeet Oberoi was forced to acknowledge the one-sidedness of the discourse on autonomy and cultural socialization of Muslim adolescents. In her research with Cuban-educated doctors in Miami, Florida, Wendy Moore encountered similar issues as she considered how to represent gender dynamics among her participants. PMID- 29027673 TI - Community Power Structure Analysis and the Ethical Considerations of "Studying Up". AB - This narrative outlines our challenges in studying power and power structures within an individual-level ethical framework. Taking a social ethics perspective, we share the story of our "sticky situation" (Campbell, ) that transpired during a multi-year community partnership. We were asked, by our community partners, to help collect interview data without informed consent. As a team of community engaged university researchers, we were faced with a seemingly easy ethical situation (no consent, no research) that had unexpectedly complicated and long lasting consequences. This experience revealed to us how community-engaged research and action, under a traditional ethics framework, can often work to protect those in positions of power and offer little to disrupt the status quo. Reflecting on the tension between individual and social ethics, we discuss the limitations of an individual-level framework, including the definitions for respect for persons, justice, and beneficence, on our ability as a field to understand, critique, and contribute to the dismantling of oppressive power structures. PMID- 29027674 TI - Reflexivity in Counterspaces Fieldwork. AB - Reflexivity is an important tool for navigating ethically important moments in fieldwork. It may be particularly useful in situations where the researcher has the potential to undermine the conduct of the study and/or the well-being enhancing role of counterspaces. In this article, I explore my use of reflexivity to traverse ethically important moments I encountered while investigating a counterspace for African-American youth who had been incarcerated. The ethical challenge concerned whether and how to continue this study in light of realizing that I held implicit biases toward the research participants. I describe my process for arriving at a decision and propose key considerations for the use of reflexivity in supporting ethical fieldwork within counterspaces. PMID- 29027675 TI - Ultrasound-Guided Percutaneous Dilatational Tracheostomies in 2 Difficult Airways. AB - Ultrasound has become a rapid, safe, and easy-to-use tool for anesthesiologists. It reduces complications, morbidity, and mortality, especially in patients with anatomic abnormalities in whom a traditional approach may be both difficult and risky. We report 2 cases of symptomatic patients with a difficult airway due to displacement of the trachea by a neck mass. Real-time ultrasound imaging was performed for percutaneous dilatational tracheostomies, identifying important structures, without any complications. PMID- 29027676 TI - Toxicokinetics of strychnine and brucine after the oral administration of Biqi capsule to rats by RRLC-MS/MS. AB - Biqi capsule is a well-known traditional Chinese medicine formula that has been widely applied for the clinical treatment of such diseases as rheumatoid arthritis, scapulohumeral periarthritis and cervical spondylopathy. However, there is concern regarding the toxicity of Biqi capsule owing to its active ingredients, strychnine and brucine. To investigate the toxicokinetics of strychnine and brucine after oral administration of Biqi capsule to rats, a sensitive and simple rapid-resolution liquid chromatography/tandem mass spectrometry method was developed to determine the levels of strychnine and brucine in rat plasma. Chromatographic separation was performed on a Capcell Pak C18 MG II (3.0 MUm, 2.0 * 35 mm) column by gradient elution with acetonitrile and 0.2% formic acid as the mobile phase. The method was validated over the range of 0.25-250 ng/mL for strychnine and 0.025-25 ng/mL for brucine. The intra- and inter-day accuracies of strychnine and brucine in rat plasma were 100.3-106.6 and 90.75-106.1% respectively, and the precisions were within 14.2%. The established method was successfully applied to the toxicokinetic study of strychnine and brucine after single and multiple oral administration of Biqi capsule to male and female rats at 0.4, 0.8 and 1.6 g/kg doses. The results showed different toxicokinetic characteristics in the different groups. PMID- 29027677 TI - Comparison of plasma pharmacokinetics of Tanreqing solution between intratracheal aerosolization and intravenous injection in rats. AB - A rapid ultra high performance liquid chromatography tandem mass spectrometry method was developed for the simultaneous analysis of baicalin, oroxylin A-7-O beta-d-glucoronide and chlorogenic acid in rats plasma, and applied to comparison of pharmacokinetics of Tanreqing solution between intratracheal aerosolization and intravenous injection. Results of the analytical method validation assay showed high sensitivity, accuracy and suitable recovery. Results of pharmacokinetics showed similar decline phases for baicalin, oroxylin A-7-O-beta d-glucoronide and chlorogenic acid in two different delivery routes. The half lives of intratracheal aerosolization and intravenous injection were 0.90 and 1.22 h for baicalin, 0.47 and 0.17 h for oroxylin A-7-O-beta-d-glucoronide and 0.22 and 0.13 h for chlorogenic acid, and this implies that compounds were retained in the lung for a relatively short time. This study was the first to provide important pharmacokinetics information for traditional Chinese medicine delivery to the lung. PMID- 29027678 TI - Evaluation of Carotid Plaque Neovascularization in Patients With Coronary Heart Disease on Contrast-Enhanced Ultrasonography. AB - OBJECTIVES: To examine the repeatability of quantitative time-intensity curve analysis of neovascularization within carotid plaques with contrast-enhanced ultrasonography (US) and to investigate carotid plaque neovascularization in patients with coronary heart disease using contrast-enhanced US and the correlation between risk factors and acute coronary syndrome (ACS). METHODS: Sixty patients with ACS and 60 with stable coronary artery disease (CAD) underwent conventional carotid and contrast-enhanced US, and plaque enhancement was observed and analyzed quantitatively. Carotid contrast-enhanced US was performed within 1 month of ACS occurrence. Interobserver and intraobserver variability of the measurements was assessed. The peak signal intensity was the maximum number of contrast microbubbles that local tissues could accumulate, reflecting the local microvascular density and representing the capillary volume. RESULTS: The ACS group had higher low-density lipoprotein cholesterol (mean +/- SD, 3.21 +/- 0.75 versus 2.53 +/- 0.71 mmol/L; P < .01) and high-sensitivity C reactive protein (CRP; 3.76 +/- 0.19 versus 2. 93 +/- 0.15 mg/L; P < .01) levels than the stable CAD group. The proportion of soft plaques in the ACS group (81%) was higher than in the stable CAD group (53%). The proportion of plaque enhancement, peak signal intensity, and plaque-to-carotid lumen enhancement intensity ratio were higher in the ACS group than the stable CAD group. The peak signal intensity was correlated with the high-sensitivity CRP value. Logistic regression analyses indicated that age (65-74 years), high-sensitivity CRP, and enhancement intensity were correlated with the occurrence of ACS. The sensitivity and specificity of the peak signal intensity in carotid plaques were 80.0% and 88.3%, respectively (cutoff value, 9.97 dB; area under the receiver operating characteristic curve, 0.865). The time-intensity curve measurements had good repeatability. CONCLUSIONS: Carotid plaque enhancement is a potential independent risk factor for ACS occurrence. These results illustrate the correlation of carotid plaque vulnerability with the coronary artery symptomatic state according to the common pathogenetic mechanism of atherosclerosis. PMID- 29027679 TI - High prevalence of betanodavirus barfin flounder nervous necrosis virus as well as red-spotted grouper nervous necrosis virus genotype in shellfish. AB - Using two serially executed PCRs, the discriminative multiplex two-step RT-PCR (DMT-2 RT-PCR) following the detection seminested two-step RT-PCR (DSN-2 RT-PCR), we found a high frequency presence of BFNNV genotype as well as RGNNV in various domestic and imported shellfish. This was definitely different from the previous reports of outbreaks and asymptomatic infection only by the RGNNV genotype in cultured finfish in Korea. Cultivation of NNV entrapped in shellfish was performed successfully by a blind passage. Thus, in an attempt to elucidate the epidemiology of betanodavirus, experiments conducted on 969 shellfish samples concluded that (i) distribution of NNV genotype, especially BFNNV, in shellfish is clearly different from that found in finfish of the world; (ii) unlike RGNNV, which showed a high rate in summer, BFNNV showed no seasonal variation and this result suggests BFNNVs in the marine environment remain fairly constant throughout the year; and (iii) the entrapped virus in shellfish was alive and culturable in vitro. These results are the first report of high level prevalence of in vitro culturable NNV in shellfish, for both BFNNV and RGNNV, which may present a potential risk in transmitting nodaviruses to host species in a marine environment. PMID- 29027680 TI - Determination of thiocyanate as a biomarker of tobacco smoke constituents in selected biological materials of human origin. AB - In order to protect human health, it is necessary to biomonitor toxic substances originating from tobacco smoke in biological materials sampled from persons with different exposures to tobacco smoke constituents. Thiocyanate anion is a biomarker of exposure to tobacco smoke components which is characterized by a relatively long half-life in the human body, i.e. 6 days. In this work, we present the results of thiocyanate determinations performed on samples of placenta, meconium, saliva, breast milk, sweat and blood. The placenta samples were subjected to accelerated solvent extraction with water. The thiocyanate concentrations were determined using ion chromatography. The analyzed biological materials were compared with regard to their applicability for biomonitoring toxic substances originating from tobacco smoke. The highest mean concentrations of thiocyanate were observed in the samples of biological materials collected from active smokers. PMID- 29027681 TI - The drivers of sea lice management policies and how best to integrate them into a risk management strategy: An ecosystem approach to sea lice management. AB - The control of sea lice infestations on cultivated Atlantic salmon is a major issue in many regions of the world. The numerous drivers which shape the priorities and objectives of the control strategies vary for different regions/jurisdictions. These range from the animal welfare and economic priorities of the producers, to the mitigation of any potential impacts on wild stocks. Veterinary ethics, environmental impacts of therapeutants, and impacts for organic certification of the produce are, amongst others, additional sets of factors which should be considered. Current best practice in both EU and international environmental law advocates a holistic ecosystem approach to assessment of impacts and risks. The issues of biosecurity and ethics, including the impacts on the stocks of species used as cleaner fish, are areas for inclusion in such a holistic ecosystem assessment. The Drivers, Pressures, State, Impacts, Responses (DPSIR) process is examined as a decision-making framework and potential applications to sea lice management are outlined. It is argued that this is required to underpin any integrated sea lice management (ISLM) strategy to balance pressures and outcomes and ensure a holistic approach to managing the issue of sea lice infestations on farmed stock on a medium to long-term basis. PMID- 29027682 TI - Comparative Study of Abdominal Muscle Thickness on Ultrasonography in Healthy Adolescents and Patients With Low Back Pain. AB - OBJECTIVES: Low back pain (LBP) is a common musculoskeletal disorder among different age groups, including adolescents. The purpose of this study was to compare the abdominal muscle thickness between healthy adolescents and those with LBP. METHODS: One hundred sixty healthy high school adolescents and 80 high school adolescents with LBP participated in the study. All participants were asked to complete a demographic questionnaire and also a visual analog scale and the Oswestry Disability Questionnaire to evaluate the pain intensity and functional disability. Then abdominal muscle thickness was examined with ultrasonography. RESULTS: The healthy high adolescents included 80 boys and 80 girls, and the adolescents with LBP included 40 boys and 40 girls. The results showed a significant difference between healthy adolescents and those with LBP in terms of abdominal muscle thickness (P < .05). Patients with LBP had smaller abdominal muscles compared with healthy adolescents. No significant difference was found between the groups in terms of the subcutaneous fat dimension (P > .05). CONCLUSIONS: The thickness of abdominal muscles was lower in adolescents with LBP. Future studies with a larger sample and a wider age range are recommended to support the results of this study. PMID- 29027683 TI - Ultrasonographic Measurement of the Biceps Femoris Long-Head Muscle Architecture. AB - OBJECTIVES: Biceps femoris long-head architectural assessment using ultrasonography (US) has not been previously described in detail for both acquisition (image capture) and digitization (image measurement) processes, and the effect of the US window width is unknown. This study aimed to describe the reliability and test-retest minimum detectable difference of US-based biceps femoris architectural measurements. METHODS: Muscle length was determined by marking the muscle-tendon junction distances. Sonograms were acquired with a 6-cm image width and cropped for a 3-cm width in 3 assessments (n = 20 adults). Intra- and inter-rater reliability rates were determined for both image (3- and 6-cm widths) acquisition and digitizing processes separated and together (within session) for the biceps femoris fascicle length, fascicle angle, and muscle thickness measurements using intraclass correlation coefficients (ICCs) and Pearson (r) correlation coefficients. RESULTS: Muscle length was measured with high intra-rater (ICC = 0.93; r = 0.92) and inter-rater (ICC = 0.90; r = 0.90) reliability. Intra-rater (coefficient of variation, 0.2%-1.8%) and inter-rater (ICC = 0.79-0.99; r = 0.80-0.99) digitizing reliability rates were high. High intra-rater (ICC = 0.79-0.95; r = 0.79-0.95) and moderate-to-high inter-rater (ICC = 0.51-0.92; r = 0.70-0.93) session reliability rates were found for all architectural parameters for 6- and 3-cm images (intra-rater ICC = 0.77-0.93; r = 0.79-0.93; inter-rater ICC = 0.63-0.98; r = 0.90-0.98). The inter-rater session reliability rates for both image acquisition and digitizing processes were higher for 6-cm images (ICC = 0.65-0.86; r = 0.67-0.87) than 3-cm images (ICC = 0.28 0.93; r = 0.67-0.93). The minimum detectable differences for the 6-cm images were 8.4 mm, 1.5 degrees , and 1.6 mm for fascicle length, fascicle angle, and muscle thickness, respectively. CONCLUSIONS: Ultrasonography can be used to reliably assess midmuscle architecture of the biceps femoris muscle when the same rater performs image acquisition and digitization. PMID- 29027684 TI - Chemical interaction between Lilium brownii and Rhizoma Anemarrhenae, the herbal constituents of Baihe Zhimu decoction, by liquid chromatography coupled to hybrid triple quadrupole linear ion trap mass spectrometer. AB - During the course of decoction, the components of herbal formula interact with each other, such that chemical extraction characteristics are altered. The crude drugs, Lilium brownii (Baihe) and Rhizoma Anemarrhenae (Zhimu), are the herbal constituents of Baihe Zhimu decoction, a traditional herbal formula. To investigate the chemical interaction between Baihe and Zhimu when decocting together, eight marker components in Baihe Zhimu decoction were simultaneously characterized and quantified in one run by a hybrid triple quadrupole linear ion trap mass spectrometer in the multiple reactions monitoring-information dependent acquisition-enhanced product ion mode. The results showed that Zhimu significantly suppressed the extraction of phenolic glycosides (the components from Baihe) when co-decocting, and Baihe clearly suppressed the extraction of xanthones and steroidal saponins (the components from Zhimu). Overall, the presently developed method would be a preferred candidate for the investigation of the chemical interaction between herbal medicines. PMID- 29027685 TI - RubisCO and the Search for Biomolecular Culprits of Planetary Change. PMID- 29027686 TI - Ultrasonography of the Sural Nerve: Normal and Pathologic Appearances. AB - Ultrasonography (US) of peripheral nerves has gained wide popularity because of the increased definition of modern high-frequency electronic transducers, as well as the well-known advantages of US, which include easy availability, low cost, and the possibility of realizing a dynamic examination. Traditionally, US has been deployed to assess the major nerves of the limbs. More recently, US has also been used to assess the normal appearance and pathologic changes of smaller subcutaneous nerves. The sural nerve is a small sensory nerve in the subcutaneous tissues of the calf that can be affected by a variety of disorders. This pictorial essay illustrates the normal anatomy of the sural nerve, the technique for its examination by US, as well as the US appearance of its main pathologic changes. PMID- 29027687 TI - Filter Adsorption of Anidulafungin to a Polysulfone-Based Hemofilter During CVVHD In Vitro. AB - Candidemia is frequent in critically ill patients, especially in combination with an acute kidney injury (AKI). Echinocandins generally are recommended for therapy of such infections. Recent studies found no need for dosage adjustment in patients with end-stage renal disease receiving hemodialysis, or patients with AKI receiving continuous venovenous hemofiltration. The aim of this in vitro study was to examine the adsorption of anidulafungin to the surface of the hemofilter during continuous venovenous hemodialysis (CVVHD) and its effect on anidulafungin concentrations. The concentration of anidulafungin in the dialyzed fluid, and the dialysate during CVVHD in vitro was examined using three different dialyzed fluids (saline; saline with 40 g/L human albumin; and a mixture of human erythrocytes and fresh frozen plasma). After the end of dialysis, the hemofilter was opened and portions of the filter capillaries were also analyzed to determine the amount of anidulafungin adsorbed. When dialyzing saline, about 99% of the anidulafungin used adsorbed to the hemofilter capillaries; in the experiments with saline with 40 g/L albumin, about 60% adsorbed to the hemofilter's surface, and when blood was dialyzed, 35% was found adsorbed after analyzing the filter capillaries. Anidulafungin was not detectable in the dialysate of any of the experiments, consequently the dialysis clearance was 0 mL/min. In conclusion, during CVVHD in vitro we found remarkable adsorption of anidulafungin to the hemofilter's surface, yet the effect on the tissue concentration needs further examination. PMID- 29027688 TI - Preoperative Ultrasonographic Assessment of the Anterior Pelvic Plane for Personalized Total Hip Replacement. AB - OBJECTIVES: Correct positioning of the acetabular component is a key factor in minimizing the risk of dislocation after total hip replacement (THR) surgery. A "safe" orientation of the cup is usually defined by 2 angles measured between its geometric axis and the anterior pelvic plane. However, in the current state-of the-art approach to THR surgery, the intraoperative orientation of the anterior pelvic plane cannot be measured. Even less is known about the functional orientation of the pelvis, which determines the postoperative orientation of the cup during the patient's everyday activities. The aim of this article is to present an original approach to personalized THR surgery, in which the necessary measurements are done preoperatively without interfering with the surgical work flow, and the individual orientation of the cup is obtained without navigation using standard tools that are available in the operating room. METHODS: To quantify the effect of the anatomic conditions on the final orientation of the cup, we measured the orientation of the anterior pelvic plane in 43 patients scheduled for THR using a newly developed noninvasive method based on ultrasonography and mobile devices. RESULTS: Our results confirm a large variability of the pelvic orientation in both supine and standing positions. We further show how this variability affects the final position of the cup and discuss its consequences for the patient. Finally, we explore a few practical solutions for individualized cup placement, including our own approach, which is based on tilting of the operating table. CONCLUSIONS: In this work, we show that the common guidelines used today for cup implantation can only be effectively applied to a small portion of the population. In most cases, it is crucial that the orientation of the cup is readjusted for the particular anatomy of the individual patient. PMID- 29027689 TI - Oral Mucosa Model for Electrochemotherapy Treatment of Dog Mouth Cancer: Ex Vivo, In Silico, and In Vivo Experiments. AB - Electrochemotherapy (EQT) is a local cancer treatment well established to cutaneous and subcutaneous tumors. Electric fields are applied to biological tissue in order to improve membrane permeability for cytotoxic drugs. This phenomenon is called electroporation or electropermeabilization. Studies have reported that tissue conductivity is electric field dependent. Electroporation numerical models of biological tissues are essential in treatment planning. Tumors of the mouth are very common in dogs. Inadequate EQT treatment of oral tumor may be caused by significant anatomic variations between dogs and tumor position. Numerical models of oral mucosa and tumor allow the treatment planning and optimization of electrodes for each patient. In this work, oral mucosa conductivity during electroporation was characterized by measuring applied voltage and current of ex vivo rats. This electroporation model was used with a spontaneous canine oral melanoma. The model outcomes of oral tumor EQT is applied in different parts of the oral cavity including near bones and the hard palate. The numerical modeling for treatment planning will help the development of new electrodes and increase the EQT effectiveness. PMID- 29027690 TI - Ultrasound-Guided Posterior Femoral Cutaneous Nerve Block: A Cadaveric Study. AB - OBJECTIVES: To identify any anatomic barriers to local anesthetic spread between the sciatic nerve (SN) and the posterior femoral cutaneous nerve (PFCN) at the level of the infragluteal crease and to describe a potential technique for an ultrasound (US)-guided subgluteal PFCN block in a cadaveric model. METHODS: Bilateral US-guided subgluteal injections of a colored latex solution were performed around the SN (15 mL) and PFCN (10 mL) in 4 unembalmed cadavers, for a total of 8 cadaver thighs. The specimens were dissected after latex polymerization to observe the spread of the latex solutions. RESULTS: With US guidance, the PFCN was visualized deep to the gluteus maximus and slightly superficial or lateral to the SN at the level of the infragluteal crease. The SN and PFCN were found on dissection to be coated with their respective colored latex in all 8 thighs. The SN and PFCN were consistently separated by the deep investing muscular fascia of the thigh, with only 2 thighs showing substantial mixing of latex injectates. CONCLUSIONS: The deep investing muscular fascia of the thigh appears to impede the spread of injectate between the SN and PFCN in a most unembalmed cadaver specimens. A US-guided subgluteal PFCN blockade may be a feasible technique to complement an SN block when complete anesthesia of the posterior thigh is required. PMID- 29027691 TI - Serum adenosine deaminase and xanthine oxidase activities in silver catfish naturally infected with Ichthyophthirius multifiliis: The influence of these enzymes on inflammatory and oxidative status. AB - Adenosine deaminase (ADA) activity, through adenosine (Ado) levels, as well as xanthine oxidase (XO) activity through uric acid levels exerts an essential role on immune and inflammatory responses during infectious diseases. Thus, the aim of this study was to evaluate the involvement of seric ADA and XO activities in the inflammatory and oxidative status of silver catfish naturally infected with Ichthyophthirius multifiliis. Seric ADA activity decreased, while Ado levels increased in infected animals compared to uninfected animals. Moreover, the seric XO activity increased in infected animals compared to uninfected animals, alongside the seric levels of uric acid, metabolites of nitric oxide (NOx) and reactive oxygen species (ROS). Based on this evidence, the downregulation of seric ADA activity exerts an anti-inflammatory profile, contributing to restricting the inflammatory process. The most important finding is that upregulation of seric XO activity leads to an excessive formation of uric acid, which contributes to oxidative and inflammatory processes. Moreover, uric acid induces the release of pro-inflammatory and pro-oxidative mediators, such NOx and ROS, which contribute directly to disease pathogenesis. In summary, the upregulation of XO activity may be considered a pathway involved in NOx and ROS production in silver catfish infected with I. multifiliis. PMID- 29027692 TI - Prenatal Diagnosis of a Urinoma and Dilated Azygous Vein. PMID- 29027694 TI - Can We Evaluate Hiatal Ballooning by Measuring the Anteroposterior Diameter With 2-Dimensional Translabial Ultrasonography? AB - OBJECTIVES: To analyze the association between the anteroposterior hiatal diameter and pelvic organ prolapse and to determine whether 2-dimensional translabial ultrasonography can evaluate hiatal ballooning by measuring the anteroposterior diameter. METHODS: This study was a retrospective analysis of 312 women seen for lower urinary tract symptoms or pelvic organ prolapse between December 2014 and July 2016. All women had an International Continence Society (ICS) Pelvic Organ Prolapse Quantification (POP-Q) system examination and 4 dimensional translabial ultrasonography. The anteroposterior hiatal diameter was measured in the midsagittal plane, and the hiatal area was measured in the minimal axial plane during the maximal Valsalva maneuver. RESULTS: Valid data from 294 patients were analyzed. International Continence Society POP-Q stage 0 was found in 121 women, stage 1 in 49, stage 2 in 78, stage 3 in 42, and stage 4 in 4. The anteroposterior diameter had an excellent linear correlation (r = 0.814; P < .001) with the hiatal area during the Valsalva maneuver and was strongly related to ICS POP-Q stages (P < .01). A receiver operating characteristic curve analysis proposed a cutoff of 6.0 cm for the anteroposterior diameter against ICS POP-Q stage 2 and higher (sensitivity, 73%; specificity, 52%) and prolapse symptoms (sensitivity, 74%; specificity, 64%). CONCLUSIONS: The anteroposterior hiatal diameter, which represents hiatal distensibility in the midsagittal plane, can be used to evaluate hiatal ballooning. "Mild" ballooning was defined as an anteroposterior diameter measurement of 6.0 to less than 6.5 cm, "moderate" ballooning as 6.5 to less than 7.0 cm, and "marked" ballooning as 7.0 cm or greater. PMID- 29027693 TI - Efficacy and safety of golimumab in Crohn's disease: a French national retrospective study. AB - BACKGROUND: Anti-tumour necrosis factor (TNF) agents have improved the care of Crohn's disease (CD). After the first anti-TNF discontinuation, it is possible to switch to another anti-TNF. Three anti-TNF agents are available for ulcerative colitis (infliximab, adalimumab and golimumab), but only the first 2 have been approved for CD because golimumab has not been studied for this indication. AIM: To report the efficacy and safety of golimumab in CD. METHODS: Crohn's disease patients who received golimumab were identified in 12 French tertiary centres and were retrospectively analysed. The primary endpoint was the duration of golimumab treatment before escalation or discontinuation. The clinical response was defined as a decrease of more than 3 points in the Harvey-Bradshaw index or by global physician assessment. RESULTS: One hundred and fifteen patients were included. The golimumab treatment duration was 9.8 months (0.55-44), and 48.7% of the patients were still under treatment at the end of follow-up. Clinical response was observed in 55.8% of the patients after a mean duration of 3.8 months. The probability of remaining under treatment without escalation at 6, 12 and 24 months was 54.6%, 34.9% and 19.3% respectively. In multivariate analysis, discontinuation of the first anti-TNF agent due to intolerance (odds ratio, OR = 2.16; 95% CI, confidence interval [1.25-3.86]; P = .005) and co-immunosuppression for more than 6 months (OR = 3.98; 95% CI [2.3-7.1]; P < .0001) were predictive factors of efficacy. Six per cent of the patients discontinued treatment due to intolerance. CONCLUSION: After failure of infliximab or adalimumab for Crohn's disease, golimumab was safe and seemed beneficial in half of the patients. PMID- 29027695 TI - Shear Wave Elastographic Alterations in the Kidney After Extracorporeal Shock Wave Lithotripsy. AB - OBJECTIVES: Extracorporeal shock wave lithotripsy (ESWL) is a method used frequently for the treatment of renal stone disease. Although its safety is proven, there are still concerns about its unwanted effects on kidneys. In this prospective study, we aimed to evaluate renal tissue alterations with shear wave elastography (SWE) after ESWL. We also studied the correlation between SWE and resistive index (RI) changes. METHODS: The study included 59 patients who underwent ESWL treatment for renal stone disease. We performed SWE and color Doppler ultrasonography to calculate SWE and RI values before, 1 hour after, and 1 week after lithotripsy treatment. A binary comparison was performed by the Bonferroni test. The correlation between SWE and RI values was evaluated by a Pearson correlation analysis. RESULTS: The patients included 26 women (44.1%) and 33 men (55.9%). Their ages ranged from 20 to 65 years (mean +/- SD, 45.0 +/- 1.1 years). Stone diameters ranged from 7 to 19 mm (mean, 13.0 +/- 0.5 mm). There was a significant difference in SWE values before and 1 hour after lithotripsy treatment (P = .001; P < .01). In the follow-up measurement 1 week after treatment, this difference disappeared (P > .99; P > .05). Resistive index values increased significantly 1 hour after lithotripsy treatment and returned to prelithotripsy values 1 week after treatment. In the correlation analysis, SWE and RI values were not correlated. CONCLUSIONS: Measurements of alterations in SWE values after ESWL can provide useful information about renal tissue injury. PMID- 29027696 TI - Computer-Aided Evaluation of Blood Vessel Geometry From Acoustic Images. AB - A method for computer-aided assessment of blood vessel geometries based on shape fitting algorithms from metric vision was evaluated. Acoustic images of cross sections of the radial artery and cephalic vein were acquired, and medical practitioners used a computer application to measure the wall thickness and nominal diameter of these blood vessels with a caliper method and the shape fitting method. The methods performed equally well for wall thickness measurements. The shape-fitting method was preferable for measuring the diameter, since it reduced systematic errors by up to 63% in the case of the cephalic vein because of its eccentricity. PMID- 29027697 TI - Development and validation of a reverse transcription quantitative polymerase chain reaction for tilapia lake virus detection in clinical samples and experimentally challenged fish. AB - Tilapia lake virus (TiLV) is an emerging pathogen associated with high mortalities of wild and farm-raised tilapia in different countries. In this study, a SYBR green-based reverse transcription quantitative polymerase chain reaction (RT-qPCR) assay targeting segment three of the virus was developed to detect and quantify TiLV in clinical samples and experimentally challenged fish. All 30 field samples with clinical signs and history consistent with TiLV infection were positive for TiLV as detected by the developed RT-qPCR method. The RT-qPCR technique provided 100 and 10,000 times more sensitive for virus detection than those offered by the RT-PCR and virus isolation in cell culture methods, respectively. The detection limit of the RT-qPCR method was as low as two viral copies/MUl. Moreover, the RT-qPCR technique could be applied for TiLV detection in various fish tissues including gills, liver, brain, heart, anterior kidney and spleen. Significantly, this study delivered an accurate and reliable method for rapid detection of TiLV viruses that facilitates active surveillance programme and disease containment. PMID- 29027698 TI - Buffalo heifers selected for lower residual feed intake have lower feed intake, better dietary nitrogen utilisation and reduced enteric methane production. AB - This study was conducted to evaluate the utilisation of the residual feed intake (RFI) as a feed efficiency selection tool and its relationship with methane emissions. Eighteen Murrah buffalo (Bubalus bubalis) heifers were fed ad libitum with total mixed ration (TMR) for 120 days. Based on linear regression models involving dry matter intake (DMI), average daily gain (ADG) and mid-test metabolic body size (MBW0.75 ), heifers were assigned into low and high RFI groups. The RFI varied from -0.09 to +0.12 kg DM/day with average RFI of -0.05 and 0.05 kg DM/day in low and high RFI heifers respectively. Low RFI heifers ate 11.6% less DM each day, yet average daily gain (ADG) and feed utilisation were comparable among low and high RFI groups. Low RFI heifers required significantly (p < .05) less metabolizable energy for maintenance (MEm) compared to high RFI heifers. Apparent nutrient digestibility showed non-significant difference (p > .05) among low and high RFI groups. Although the nitrogen balance was similar among heifers of low and high RFI groups, nitrogen metabolism was significantly higher (p > .05) in high RFI heifers. Comparison of data from heifers exhibiting the low (n = 9) and high (n = 9) RFI showed that the low RFI heifers have lower enteric methane production and methane losses than high RFI heifers. In conclusion, results of this study revealed that selection of more efficient buffalo heifers has multiple benefits, such as decreased feed intake and less emission of methane. PMID- 29027699 TI - Lymphopenia and fumaric acid esters for psoriasis: a retrospective case series prompted by the European Medicines Agency's Pharmacovigilance Risk Assessment Committee (PRAC) recommendations. PMID- 29027700 TI - Increases in the expression of Na+ /H+ exchanger 1 and 3 are associated with insulin signalling in the ruminal epithelium. AB - Na+ /H+ exchanger (NHE), which catalyses the exchange of extracellular Na+ for intracellular H+ , is of importance in the maintenance of Na+ and pH homoeostasis for rumen epithelial cells. Studies in ruminants showed that high concentrate diets could increase the expression of NHE in ruminal epithelium. Results of recent studies further indicated that insulin, as an important hormone closely related to dietary concentrate, could enhance the expression of NHE. In this study, we have investigated the mechanisms of insulin regulating the expression of NHE in rumen epithelial cells and its potential role in dietary modulation of NHE expression in ruminal epithelium of cows. In primary culture, insulin increased phosphorylation of ERK 1/2 and AKT in rumen epithelial cells. However, this promotion was diminished by insulin receptor inhibitor. Insulin also stimulated NHE1 and NHE3 expression. But this increase was suppressed by insulin receptor inhibitor, ERK inhibitor and AKT inhibitor. In the present animal experiment, NHE1 and NHE3 expression increased in rumen epithelium of cows ingesting a high concentrate diet (HC, 60% concentrate), accompanied by increased insulin concentration in plasma, compared to those feeding a low concentrate diet (LC, 20% concentrate). Furthermore, the phosphorylation of ERK1/2 and AKT was higher in the rumen epithelium of the HC group than those in the LC group. Collectively, these results indicate that diet-dependent change of NHE1 and NHE3 abundance was mediated, at least in part, by plasma insulin through the ERK and AKT pathway. PMID- 29027703 TI - 31st Annual Meeting of the Austrian Society of Transplantation, Transfusion and Genetics - Austrotransplant 2017, Zell am See, Austria, 18-20 October 2017. PMID- 29027701 TI - Cellular and molecular characterization of IDH1-mutated diffuse low grade gliomas reveals tumor heterogeneity and absence of EGFR/PDGFRalpha activation. AB - Diffuse low grade gliomas (DLGG, grade II gliomas) are slowly-growing brain tumors that often progress into high grade gliomas. Most tumors have a missense mutation for IDH1 combined with 1p19q codeletion in oligodendrogliomas or ATRX/TP53 mutations in astrocytomas. The phenotype of tumoral cells, their environment and the pathways activated in these tumors are still ill-defined and are mainly based on genomics and transcriptomics analysis. Here we used freshly resected tumors to accurately characterize the tumoral cell population and their environment. In oligodendrogliomas, cells express the transcription factors MYT1, Nkx2.2, Olig1, Olig2, Sox8, four receptors (EGFR, PDGFRalpha, LIFR, PTPRZ1) but not the co-receptor NG2 known to be expressed by oligodendrocyte progenitor cells. A variable fraction of cells also express the more mature oligodendrocytic markers NOGO-A and MAG. DLGG cells are also stained for the young-neuron marker doublecortin (Dcx) which is also observed in oligodendrocytic cells in nontumoral human brain. In astrocytomas, MYT1, PDGFRalpha, PTPRZ1 were less expressed whereas Sox9 was prominent over Sox8. The phenotype of DLGG cells is overall maintained in culture. Phospho-array screening showed the absence of EGFR and PDGFRalpha phosphorylation in DLGG but revealed the strong activation of p44/42 MAPK/ERK which was present in a fraction of tumoral cells but also in nontumoral cells. These results provide evidence for the existence of close relationships between the cellular phenotype and the mutations found in DLGG. The slow proliferation of these tumors may be associated with the absence of activation of PDGFRalpha/EGFR receptors. PMID- 29027702 TI - PER1, GUP1 and CWH43 of methylotrophic yeast Ogataea minuta are involved in cell wall integrity. AB - In eukaryotes, the glycosylphosphatidylinositol (GPI) modification of many glycoproteins on the cell surface is highly conserved. The lipid moieties of GPI anchored proteins undergo remodelling processes during their maturation. To date, the products of the PER1, GUP1 and CWH43 genes of the yeast Saccharomyces cerevisiae have been shown to be involved in the lipid remodelling. Here, we focus on the putative GPI remodelling pathway in the methylotrophic yeast Ogataea minuta. We found that the O. minuta homologues of PER1, GUP1 and CWH43 are functionally compatible with those of S. cerevisiae. Disruption of GUP1 or CWH43 in O. minuta caused a growth defect under non-permissive conditions. The O. minuta per1Delta mutant exhibited a more fragile phenotype than the gup1Delta or cwh43Delta mutants. To address the role of GPI modification in O. minuta, we assessed the effect of these mutations on the processing and localization of the O. minuta homologues of the Gas1 protein; in S. cerevisiae, Gas1p is an abundant and well-characterized GPI-anchored protein. We found that O. minuta possesses two copies of the GAS1 gene, which we designate GAS1A and GAS1B. Microscopy and western blotting analysis showed mislocalization and/or lower retention of Gas1Ap and Gas1Bp within the membrane fraction in per1Delta or gup1Delta mutant cells, suggesting the significance of lipid remodelling for GPI-anchored proteins in O. minuta. Localization behaviour of Gas1Bp differed from that of Gas1Ap. Our data reveals, for the first time (to our knowledge), the existence of genes related to GPI anchor remodelling in O. minuta cells. PMID- 29027704 TI - Effect of Royal Jelly on behavioural patterns, feather quality, egg quality and some haematological parameters in laying hens at the late stage of production. AB - The aim was to elucidate the impact of Royal Jelly (RJ) on behavioural patterns, feather cover, egg quality and some blood haematological indices in laying hens (58-64 weeks of age). A total of 108 Tetra Brown laying hens were used in the current trial. The birds were divided into three equal groups (36 birds each). The pure RJ was prepared for immediate injection subcutaneously, as follows: the first treated group (RJ1 :100 mg/kg); the second treated group (RJ2 :200 mg/kg); the control group. The eating and drinking activities in the RJ2 group were significantly (p = .009 and .015 respectively) higher than the control and RJ1 groups. Furthermore, the aggressive pecks, feather pecks and threating behaviour in the RJ2 group were significantly (p = .005, .001 and .039 respectively) lower than the control and RJ1 groups. Both RJ-treated groups had the best feather cover on the neck and abdomen regions (p = .010 and .001 respectively; Figure ). Both RJ-treated groups had a significantly higher eggshell ratio (p = .019) and shell thickness (p = .001) in comparison with the control group. The albumen height, Haugh units and yolk index in both RJ-treated groups were significantly greater than those recorded in the control group (p = .026, .001 and .022 respectively). The erythrocyte and total leucocyte counts in the RJ2 group were significantly higher than those reported in the control and RJ1 groups (p = .029 and .013 respectively); however, the heterophil/lymphocyte (H/L) ratio and heterophil % in both RJ-treated groups were significantly the lowest (p = .001 and .039). In conclusion, birds in the RJ2 group had superior feather cover, welfare and behavioural indices, probably due to the impact of active flavonoids components of RJ on laying hen performance. Furthermore, the RJ-treated groups had significantly improved egg quality parameters and some blood haematological indices. PMID- 29027705 TI - Effects of dietary supplementation of spices on forage degradability, ruminal fermentation, in vivo digestibility, growth performance and nitrogen balance in Black Bengal goat. AB - The objective of the study was to evaluate the effects of spices on forage utilization and nitrogen (N) emission using in vitro and in vivo approach. A 6 * 5 factorial triplicate arrangement was used to assess the in vitro degradability of rice straw with control (without spices) and individual (40 mg/g rice straw) spices (cumin, coriander, clove, black cumin, turmeric) at five different incubation times. In vitro dry matter (DM) and organic matter (OM) degradability of rice straw were highest in presence of spices except for clove. Clove significantly reduced the total volatile fatty acids concentration, molar proportion of acetate and propionate ratio, but increased propionate production. Acetate and butyrate production were not affected by treatments. The ammonia nitrogen concentration was lowest for clove and turmeric compared to other spices. Rumen pH was unchanged but gradually decreased over the incubation period. For in vivo study, 12 bucks with average live weight 7.65 +/- 0.19 kg were assigned to a completely randomized design with three treatments and four replicates for a 28-day period. Bucks were fed a total mixed ration without (0 g/kg DM) or with (2.5, 7.5 g/kg DM) clove supplementation. DM intake, body weight and apparent total tract digestibility of crude protein (CP) and acid detergent fibre (ADF) were not affected by increasing dietary doses of clove but tended (p = .09) to increase DM and OM digestibility. The urinary N and urine urea N concentration of bucks decreased linearly with incremental doses of clove diet. In contrary, clove supplementation had positive effects on plasma urea N and retained N in bucks. We concluded that though some spices had positive effects on ruminal digestion and fermentation, the dosage level assessed in the current study (up to 7.5 g/kg DM clove) can be promoted as an effective dietary approach to mitigate N losses in bucks. PMID- 29027706 TI - Regional citrate anticoagulation with calcium replacement in pediatric apheresis. AB - PURPOSE: The objective of this retrospective analysis was to present our single center experience with intravenous (IV) calcium replacement and regional citrate anticoagulation in pediatric apheresis therapy with the aim of developing a standard operating procedure to minimize symptomatic hypocalcemia. METHODS: We analyzed apheresis procedures in patients <18 years of age over a 2-year time period (Jan 2012 to Dec 2014). Procedures in tandem with other extracorporeal therapies, including continuous renal replacement therapy, extracorporeal liver support, and extracorporeal membrane oxygenation, were excluded. RESULTS: Two hundred and six patients underwent 1176 procedures. All procedures were performed with acid citrate dextrose formula A (ACD-A) for anticoagulation and IV calcium replacement. The majority of procedures (56.7%) were therapeutic plasma exchange (TPE). The average rate of IV calcium chloride (2.16 mg/mL of elemental calcium) was 60.4 +/- 21.4 mL/h while inlet flow rate was 43.7 +/- 16.3 mL/min. Patients experienced hypocalcemia in 63 of 1176 procedures (5.3%), including 48 episodes (4.1%) of hypocalcemia during apheresis treatment. Two procedures with hypocalcemia had symptoms: one slight lip twitch and one patient with abdominal pain. No hemodynamic alterations were noted in any procedure associated with hypocalcemia. Hypocalcemia was seen the least with RCE. For patients with hypocalcemia prior to the apheresis session, we used a calcium infusion running at 1.6 times the inlet flow rate. CONCLUSION: Running IV calcium at 1.4 times the inlet flow rate resulted in a lower incidence of hypocalcemia than reported in literature describing other approaches to apheresis. It nearly eliminated episodes of symptomatic hypocalcemia. PMID- 29027707 TI - A Trichosporonales genome tree based on 27 haploid and three evolutionarily conserved 'natural' hybrid genomes. AB - To construct a backbone tree consisting of basidiomycetous yeasts, draft genome sequences from 25 species of Trichosporonales (Tremellomycetes, Basidiomycota) were generated. In addition to the hybrid genomes of Trichosporon coremiiforme and Trichosporon ovoides that we described previously, we identified an interspecies hybrid genome in Cutaneotrichosporon mucoides (formerly Trichosporon mucoides). This hybrid genome had a gene retention rate of ~55%, and its closest haploid relative was Cutaneotrichosporon dermatis. After constructing the C. mucoides subgenomes, we generated a phylogenetic tree using genome data from the 27 haploid species and the subgenome data from the three hybrid genome species. It was a high-quality tree with 100% bootstrap support for all of the branches. The genome-based tree provided superior resolution compared with previous multi gene analyses. Although our backbone tree does not include all Trichosporonales genera (e.g. Cryptotrichosporon), it will be valuable for future analyses of genome data. Interest in interspecies hybrid fungal genomes has recently increased because they may provide a basis for new technologies. The three Trichosporonales hybrid genomes described in this study are different from well characterized hybrid genomes (e.g. those of Saccharomyces pastorianus and Saccharomyces bayanus) because these hybridization events probably occurred in the distant evolutionary past. Hence, they will be useful for studying genome stability following hybridization and speciation events. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29027708 TI - Advancing Prenatal Detection of Congenital Heart Disease: A Novel Screening Protocol Improves Early Diagnosis of Complex Congenital Heart Disease. AB - OBJECTIVES: Prenatal diagnosis of complex congenital heart disease (CHD) during routine obstetric ultrasound (US) examinations improves postnatal outcomes, but sensitivity is low (<40%). Our objective was to improve our prenatal detection of complex CHD with implementation of a specific screening protocol. METHODS: From January 2003 to December 2013, 506 consecutive confirmed cases of complex CHD in the province of Manitoba, Canada, were analyzed to compare the sensitivity and positive predictive value of prenatal US detection of complex CHD before and after the introduction of a novel prenatal screening protocol. The intervention was done in October 2004, emphasizing screening and not diagnosis of complex CHD. It involved education, practical scanning tips, a checklist, and feedback on cases. We also assessed the effect of the intervention in different screening settings: community hospitals, tertiary hospitals, and fetal assessment units. RESULTS: The sensitivity for detecting complex CHD increased from 29.8% to 88.3% (P < .0001), while the positive predictive value remained high. The largest improvement in detection was found for US units in community hospitals (52.4% higher; P < .0001), followed by tertiary hospitals (39.9%; P = .0004), and fetal assessment units (7.2%; P = .16). Additionally, there was a significant decrease in the presentation of neonates in critical condition from before to after the implementation (24.3% to 13.1%, respectively; P = .0165). CONCLUSIONS: Implementing a focused routine prenatal screening protocol can vastly improve detection rates of critical cardiac abnormalities. The improvement in community hospitals was particularly important because early detection ensured that the birth was planned to take place in an appropriate facility. Our novel protocol can be performed by all sonographers, regardless of experience, equipment used, and hospital setting. PMID- 29027709 TI - Pemphigus vulgaris complicated by extensive keloid scarring. PMID- 29027710 TI - Megacystis-Microcolon-Intestinal Hypoperistalsis Syndrome: An Unusual In Utero Presentation. PMID- 29027711 TI - Expansion of mesenchymal stem cells on electrospun scaffolds maintains stemness, mechano-responsivity, and differentiation potential. AB - Mesenchymal stem cells (MSCs) hold great promise for regenerative therapies and tissue engineering applications given their multipotential differentiation capacity. However, MSC isolation and expansion are typically performed on super physiologically stiff tissue culture plastic (TCP), which may alter their behavior and lead to unintended consequences upon implantation. In contrast, electrospun nanofibrous scaffolds possess physical and mechanical properties that are similar to that of native tissue. In this study, we investigated whether isolation and expansion of juvenile bovine MSCs directly onto electrospun nanofibrous scaffolds better preserves MSC phenotype and stemness compared to TCP. Our data show that culture of MSCs on electrospun scaffolds reduces proliferation, decreases cellular senescence, and better maintains stemness compared to cells isolated and expanded on TCP, likely due to a reduction in cell contractility. Furthermore, in contrast to electrospun scaffolds, TCP biased MSCs towards a fibrotic phenotype that persisted even after the cells were reseeded onto a different substrate. Cells pre-cultured on electrospun scaffolds exhibited a heightened response to mechanical stimuli and greater chondrogenesis in methacrylated hyaluronic acid hydrogels. These data suggest that alternative substrates that better approximate the native cell environment should be used to preserve endogenous MSC behavior and may improve their success in tissue engineering applications. (c) 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:808-815, 2018. PMID- 29027712 TI - Upregulation of UBE2Q1 via gene copy number gain in hepatocellular carcinoma promotes cancer progression through beta-catenin-EGFR-PI3K-Akt-mTOR signaling pathway. AB - Hepatocellular carcinoma (HCC) is the most common type of liver cancer and represents a highly malignant tumor with a poor prognosis. Therapeutic modalities for HCC are limited and generally ineffective. UBE2Q1 is a putative E2 ubiquitin conjugating enzyme, and has been shown to be overexpressed in various types of cancers including HCC. How UBE2Q1 contributes to hepatocarcinogenesis remains unknown. Here, we show that UBE2Q1 is up-regulated in HCC cell lines and in a subset of human HCC tissues. Up-regulation of UBE2Q1 in primary HCC tumors was significantly correlated with shorter overall survival and disease-free survival. Mechanistically, we showed that the frequent up-regulation of UBE2Q1 in HCCs was attributed to the recurrent UBE2Q1 gene copy gain at chromosome 1q21. Functionally, we showed that knockdown of UBE2Q1 reduced HCC cell proliferation, promoted apoptosis via induction of GADD45alpha, and suppressed orthotopic tumorigenicity both in vitro and in vivo. Inactivation of UBE2Q1 also impeded HCC cell migration and invasion in vitro through regulating EMT process, and suppressed HCC metastasis in vivo. Interestingly, our data revealed a role of UBE2Q1 in the regulation of beta-catenin-EGFR-PI3K-Akt-mTOR signaling pathway. Our findings indicate that UBE2Q1 is a candidate oncogene involved in HCC development and progression and therefore a potential therapeutic target in applicable HCC patients. PMID- 29027714 TI - Practical Synthesis of alpha-Amyrin, beta-Amyrin, and Lupeol: The Potential Natural Inhibitors of Human Oxidosqualene Cyclase. AB - A practical synthesis of alpha-amyrin (1), beta-amyrin (2), and lupeol (3) was accomplished in total yields of 32, 42, and 40% starting from easily available ursolic acid (4), oleanolic acid (5), and betulin (6), respectively. Remarkably, these three natural pentacyclic triterpenes exhibited potential inhibitory activity against human oxidosqualene cyclase. PMID- 29027713 TI - Engineering Cell Surface Function with DNA Origami. AB - A specific and reversible method is reported to engineer cell-membrane function by embedding DNA-origami nanodevices onto the cell surface. Robust membrane functionalization across epithelial, mesenchymal, and nonadherent immune cells is achieved with DNA nanoplatforms that enable functions including the construction of higher-order DNA assemblies at the cell surface and programed cell-cell adhesion between homotypic and heterotypic cells via sequence-specific DNA hybridization. It is anticipated that integration of DNA-origami nanodevices can transform the cell membrane into an engineered material that can mimic, manipulate, and measure biophysical and biochemical function within the plasma membrane of living cells. PMID- 29027715 TI - Diagnostic performance of human epididymis protein 4 compared to a combination of biophysical and biochemical markers to differentiate ovarian endometriosis from epithelial ovarian cancer in premenopausal women. AB - AIM: This study is a comparison of human epididymis protein 4 (HE4) with cancer antigen 125 (CA125), using the Risk of Ovarian Malignancy Algorithm (ROMA), Copenhagen Index (CPH-I), Risk of Malignancy Index (RMI) and Morphology Index (MI) to differentiate ovarian endometriosis from epithelial ovarian cancer (EOC) in premenopausal women. METHODS: The study was performed at the University Clinic of Obstetrics and Gynecology in Skopje. One hundred and sixty-four premenopausal patients were divided into three study groups, including ovarian endometriosis (37), other benign pelvic masses (57) and EOCs (11), and a control group (59). After ultrasonography, all subjects underwent blood sampling. Surgery and histological verification was performed. Pelvic masses were classified based on histological findings. Mann-Whitney, receiver operating characteristic-area under the curve (AUC), sensitivity, specificity and Kruskal-Wallis tests were used for statistical analysis. The level of significance alpha was set at 5%. RESULTS: For each of the tested markers, sensitivity, specificity and accuracy to distinguish ovarian endometriosis from EOC were as follows: HE4 (81.82%, 100%, 95.83%); CA125 (81.82%, 48.65%, 56.25%); ROMA (90.91%, 83.78%, 85.42%); CPH-I (81.82%, 97.30%, 93.75%); RMI (90.91%, 35.14%, 47.92%); and MI (100%, 75.68%, 81.25%), respectively. The AUC for ovarian endometriosis compared to EOC for tested markers was as follows: HE4 (AUC = 0.934), CA125 (AUC = 0.821), ROMA (AUC = 0.929), CPH-I (AUC = 0.924) and RMI (AUC = 0.880), respectively. CONCLUSION: HE4 and CPH-I perform best to discriminate ovarian endometriosis from EOC in premenopausal women. MI has maximal sensitivity to detect EOC. PMID- 29027716 TI - Cytotoxicity of Group 5 Transition Metal Ditellurides (MTe2 ; M=V, Nb, Ta). AB - Much research effort has been put in to study layered compounds with transition metal dichalcogenides (TMDs) being one of the most studied compounds. Due to their extraordinary properties such as excellent electrochemical properties, tuneable band gaps, and low shear resistance due to weak van der Waals interactions between layers, TMDs have been found to have wide applications such as electrocatalysts for hydrogen evolution reactions, supercapacitors, biosensors, field-effect transistors (FETs), photovoltaics, and lubricant additives. In very recent years, Group 5 transition metal ditellurides have received an immense amount of research attention. However to date, little has been known of the potential toxicities posed by these materials. As such, we conducted the cytotoxicity study by incubating various concentrations of the Group 5 transition metal ditellurides (MTe2 ; M=V, Nb, Ta) with human lung carcinoma epithelial A549 cells for 24 hours and the remaining cell viabilities after treatment was measured. Our findings indicate that VTe2 is highly toxic whereas NbTe2 and TaTe2 are deemed to exhibit mild toxicities. This study constitutes an exemplary first step towards the understanding of the Group 5 transition metal ditellurides' toxicity effects in preparation for their possible future commercialisation. PMID- 29027717 TI - Functional characterization of five NR5A1 gene mutations found in patients with 46,XY disorders of sex development. AB - Steroidogenic factor-1 (SF1), encoded by the NR5A1 gene, is a key regulator of steroidogenesis and reproductive development. NR5A1 mutations described in 46,XY patients with disorders of sex development (DSD) can be associated with a range of conditions of phenotypes; however, the genotype-phenotype correlation remains elusive in many cases. In the present study, we describe the impact of five NR5A1 variants (three novel: p.Arg39Cys, p.Ser32Asn, and p.Lys396Argfs*34; and two previously described: p.Cys65Tyr and p.Cys247*) on protein function, identified in seven patients with 46,XY DSD. In vitro functional analyses demonstrate that NR5A1 mutations impair protein functions and result in the DSD phenotype observed in our patients. Missense mutations in the DNA binding domain and the frameshift mutation p.Lys396Argfs*34 lead to both, markedly affected transactivation assays, and loss of DNA binding, whereas the mutation p.Cys247* retained partial transactivation capacity and the ability to bind a consensus SF1 responsive element. SF1 acts in a dose-dependent manner and regulates a cascade of genes involved in the sex determination and steroidogenesis, but in most cases reported so far, still lead to a sufficient adrenal steroidogenesis and function, just like in our cases, in which heterozygous mutations are associated to 46,XY DSD with intact adrenal steroid biosynthesis. PMID- 29027718 TI - Hypervascular retained product of conception: Characteristic magnetic resonance imaging and possible relationship to placental polyp and pseudoaneurysm. AB - The cases of two patients who developed myometrial vascularization following dilatation and curettage are described. In case 1, pathological diagnosis was possible with the resected specimens. This patient had hypervascular retained products of conception (RPOC). In case 2, the natural course of this pathological condition was observed, confirming a process of regression during repeated withdrawal bleeding. The three principal magnetic resonance imaging (MRI) findings in these cases were: (i) presence of a remnant; (ii) breaking of the junctional zone in contact with the remnant; and (iii) vascularization/flow voids infiltrating into the myometrium from the broken junctional zone. These three MRI findings differed in degree and varied in combination in each case of RPOC. Uterine artery pseudoaneurysms have been reported as intrauterine vascularization after abortion or delivery with subsequent spontaneous regression. These reports may include cases of hypervascular RPOC. PMID- 29027719 TI - Glioplasticity in irritable bowel syndrome. AB - BACKGROUND: Growing evidence indicates a wide array of cellular remodeling in the mucosal microenvironment during irritable bowel syndrome (IBS), which possibly contributes to pathophysiology and symptom generation. Here, we investigated whether enteric glial cells (EGC) may be altered, and which factors/mechanisms lead to these changes. METHODS: Colonic mucosal biopsies of IBS patients (13 IBS Constipation [IBS-C]; 10 IBS-Diarrhea [IBS-D]; 11 IBS-Mixed [IBS-M]) and 24 healthy controls (HC) were analyzed. Expression of S100beta and GFAP was measured. Cultured rat EGC were incubated with supernatants from mucosal biopsies, then proliferation and Ca2+ response to ATP were analyzed using flow cytometry and Ca2+ imaging. Histamine and histamine 1-receptor (H1R) involvement in the effects of supernatant upon EGC was analyzed. KEY RESULTS: Compared to HC, the mucosal area immunoreactive for S100beta was significantly reduced in biopsies of IBS patients, independently of the IBS subtype. IBS-C supernatants reduced EGC proliferation and IBS-D and IBS-M supernatants reduced Ca2+ response to ATP in EGC. EGC expressed H1R and the effects of supernatant upon Ca2+ response to ATP in EGC were blocked by pyrilamine and reproduced by histamine via H1R. IBS supernatants reduced mRNA expression of connexin-43. The S100beta stained area was negatively correlated with the frequency and intensity of pain and bloating. CONCLUSION AND INFERENCES: Changes in EGC occur in IBS, involving mucosal soluble factors. Histamine, via activation of H1R-dependent pathways, partly mediates altered Ca2+ response to ATP in EGC. These changes may contribute to the pathophysiology and the perception of pain and bloating in patients with IBS. PMID- 29027720 TI - The effect of different thermal treatment on the physical properties of PGA/PCL copolymer suture material. AB - Samples of polyglycolic acid PGA/polycaprolactone PCL copolymer absorbable suture materials, which is called Poliglecaprone PGC copolymer suture, were thermally treated by two different processes. The first method is the direct heat exposure, from 20 to 38 degrees C, in the surrounding medium. Which is an environmental study. The other method is the annealing process at temperatures ranged from 65, 80, 100, 120, and 140 degrees C, for two different duration periods 60 and 120 min. This is an extensive technical study. The refractive indices of thermally treated PGA/PCL copolymer sutures were measured using multiple-beam Fizeau fringes. The birefringence profiles across the suture cross-sections were studied for different annealing conditions. The effect of heat on the polarizabilty per unit volume, dielectric properties, and suture diameter were investigated. The activation energy for the heating processes was calculated using Arrhenius equation. Microinterferograms are given for illustration. PMID- 29027721 TI - N-Doped Carbon Nanofibrous Network Derived from Bacterial Cellulose for the Loading of Pt Nanoparticles for Methanol Oxidation Reaction. AB - The large-scale, low-cost preparation of Pt-based catalysts with high activity and durability for the methanol oxidation reaction is still challenging. The key to achieving this aim is finding suitable supporting materials. In this paper, N doped carbon nanofibrous networks are prepared by annealing a gel containing two inexpensive and ecofriendly precursors, that is, bacterial cellulose and urea, for the loading of Pt nanoparticles. An undoped analogue is also prepared for comparison. Meanwhile, the effect of the annealing temperature on the performance of the catalysts is evaluated. The results show that the N doping and higher annealing temperature can improve the electron conductivity of the catalyst and provide more active sites for the loading of ultrafine Pt nanoparticles with a narrow size distribution. The best catalyst exhibits a remarkably high electrocatalytic activity (627 mA mg-1 ), excellent poison tolerance, and high durability. This work demonstrates an ideal Pt supporting material for the methanol oxidation reaction. PMID- 29027722 TI - The Coordination and Supramolecular Chemistry of Gold Metalloligands. AB - This review article deals with the use of gold metalloligands as building blocks for the assembly of heterometallic complexes. Several families of gold complexes decorated with crown-ether, amide, pyridine, bipyridine, terpyridine, carboxylato, amino acid or pi-alkyne binding sites have been reported. Adducts of these metalloligands with alkaline or transition-metal cations, or with transition-metal or lanthanide complexes, have been isolated and structurally characterized. The reported heterometallic species range from simple dinuclear complexes to self-assembled supramolecules, coordination polymers, or solids. New structural motifs have been found in these complexes. Most of these metalloligands and complexes are photoluminescent and some of them show switchable emissions based on the formation and rupture of metallophilic contacts. Potential applications as sensors, sensitizers, in vivo imaging agents, and anticancer drugs are envisaged. PMID- 29027724 TI - Adsorbed Eutectic GaIn Structures on a Neoprene Foam for Stretchable MRI Coils. AB - Stretchable conductors based on eutectic gallium-indium (eGaIn) alloy are patterned on a polychloroprene substrate (neoprene foam) using stencil printing. By tuning the amount of eGaIn on the neoprene substrate, different strain sensitivity of electrical resistance is achieved. Conductors with a layer of eGaIn, which adsorbs to the walls of 60-100 um wide neoprene cells, change their electrical resistance for 5% at 100% strain. When the amount of eGaIn is increased, the cells are filled with eGaIn and the strain-sensitivity of the electrical resistance rises to 300% at 100% strain. The developed conductors are patterned as stretchable on-body coils for receiving magnetic signals in a clinical magnetic resonance imaging setup. First images with a stretchable coil are acquired on an orange and compared to the images that are recorded using a rigid copper coil of the same size. PMID- 29027723 TI - Diagnostic yield of chromosomal microarray analysis in fetuses with isolated increased nuchal translucency: a French multicenter study. AB - OBJECTIVE: To determine the frequency and nature of copy number variants (CNVs) identified by chromosomal microarray analysis (CMA) in a large cohort of fetuses with isolated increased nuchal translucency thickness (NT) >= 3.5 mm. METHODS: This was a retrospective, multicenter study, including 11 French hospitals, of data from the period between April 2012 and December 2015. In total, 720 fetuses were analyzed by rapid aneuploidy test and the fetuses identified as euploid underwent CMA. CNVs detected were evaluated for clinical significance and classified into five groups: pathogenic CNVs; benign CNVs; CNVs predisposing to neurodevelopmental disorders; variants of uncertain significance (VOUS); and CNVs not related to the phenotype (i.e. incidental findings). RESULTS: In 121 (16.8%) fetuses, an aneuploidy involving chromosome 13, 18 or 21 was detected by rapid aneuploidy test and the remaining 599 fetuses were euploid. Among these, 53 (8.8%) had a CNV detected by CMA: 16/599 (2.7%) were considered to be pathogenic, including 11/599 (1.8%) that were cryptic (not visible by karyotyping); 7/599 (1.2%) were CNVs predisposing to neurodevelopmental disorders; and 8/599 (1.3%) were VOUS. Additionally, there was one (0.2%) CNV that was unrelated to the reason for referral diagnosis (i.e. an incidental finding) and the remaining 21 were benign CNVs, without clinical consequence. Interestingly, we identified five genomic imbalances of the 1q21.1 or 15q11.2 regions known to be associated with congenital heart defects. CONCLUSION: Our study demonstrates the benefit of CMA in the etiological diagnosis of fetuses with isolated increased NT. It is worth noting that most (69%) of the detected pathogenic CNVs were cryptic. Copyright (c) 2017 ISUOG. Published by John Wiley & Sons Ltd. PMID- 29027725 TI - Severity of ineffective esophageal motility is associated with utilization of skeletal muscle relaxant medications. AB - BACKGROUND: Ineffective esophageal motility (IEM) is the most common finding on high-resolution esophageal manometry (HREM). The underlying mechanisms for IEM remain to be fully elucidated. The aim of this study was to determine if utilization of skeletal muscle relaxants is associated with IEM, and with more severe subtypes of the disorder. METHODS: Patients with diagnosis of IEM were gender and age matched to patients with normal HREM. Demographic information, symptoms, endoscopic findings, medication usage and medical comorbidities were recorded. Patients with a diagnosis of IEM were divided into subgroups based on mean distal contractile integral (DCI) and percentage of ineffective swallows, and assessed for clinically significant differences among patients with varying severity of underlying IEM. KEY RESULTS: A total of 118 patients were included in each group. There were no significant clinical differences between the group of patients with IEM and the group of patients with normal manometry. Within the group of IEM patients, those with mean DCI < 250 mm Hg/s/cm were more likely to be prescribed skeletal muscle relaxants (27.8% vs 11.0%, P = .044), and those using skeletal muscle relaxants had a larger mean percentage of ineffective swallows (81.1% vs 71.5%, P = .029). There were no significant differences across mean DCI subgroups in usage of any other medication, or in any of the demographic variables or disease comorbidities examined in this study. CONCLUSIONS & INFERENCES: Use of skeletal muscle relaxants is associated with more severe IEM, which may suggest a causal association between this class of medications and weaker esophageal peristalsis. PMID- 29027726 TI - Melanotic neuroectodermal tumour of infancy: An enigmatic tumour with unique cytomorphological features. PMID- 29027727 TI - Downregulated apoptosis and autophagy after anti-Abeta immunotherapy in Alzheimer's disease. AB - Abeta immunization of Alzheimer's disease (AD) patients in the AN1792 (Elan Pharmaceuticals) trial caused Abeta removal and a decreased density of neurons in the cerebral cortex. As preservation of neurons may be a critical determinant of outcome after Abeta immunization, we have assessed the impact of previous Abeta immunization on the expression of a range of apoptotic proteins in post-mortem human brain tissue. Cortex from 13 AD patients immunized with AN1792 (iAD) and from 27 nonimmunized AD (cAD) cases was immunolabeled for proapoptotic proteins implicated in AD pathophysiology: phosphorylated c-Jun N-terminal kinase (pJNK), activated caspase3 (a-casp3), phosphorylated GSK3beta on tyrosine 216 (GSK3betatyr216 ), p53 and Cdk5/p35. Expression of these proteins was analyzed in relation to immunization status and other clinical data. The antigen load of all of these proapoptotic proteins was significantly lower in iAD than cAD (P < 0.0001). In cAD, significant correlations (P < 0.001) were observed between: Cdk5/p35 and GSK3betatyr216 ; a-casp3 and Abeta42 ; p53 and age at death. In iAD, significant correlations were found between GSK3betatyr216 and a-casp3; both spongiosis and neuritic curvature ratio and Abeta42 ; and Cdk5/p35 and Abeta antibody level. Although neuronal loss was increased by immunization with AN1792, our present findings suggest downregulation of apoptosis in residual neurons and other cells. PMID- 29027728 TI - Hepatitis in AIDS patients. AB - The individuals with HIV infection are more susceptible to develop coinfections with infectious pathogens such as HCV and HBV. The routes of transmission of these pathogens are the same including sexual contact, injection drug use, or at birth from mother to an infant. The main reason of morbidity and mortality in HIV infected individuals is a liver disease in the context of antiretroviral therapy, and coinfection such as HCV and HBV complicates this condition. Nucleos(t)ide analogues are used for HBV infection management, and treatment of HCV infection is done by PegIFN and ribavirin combination and protease inhibitors. In this review, we focused on hepatitis B and C infections in HIV patients along with their therapies. PMID- 29027729 TI - Application of Bayesian analysis to the doubly labelled water method for total energy expenditure in humans. AB - RATIONALE: The doubly labelled water (DLW) method is the reference method for the estimation of free-living total energy expenditure (TEE). In this method, where both 2 H and 18 O are employed, different approaches have been adopted to deal with the non-conformity observed regarding the distribution space for the labels being non-coincident with total body water. However, the method adopted can have a significant effect on the estimated TEE. METHODS: We proposed a Bayesian reasoning approach to modify an assumed prior distribution for the space ratio using experimental data to derive the TEE. A Bayesian hierarchical approach was also investigated. The dataset was obtained from 59 adults (37 women) who underwent a DLW experiment during which the 2 H and 18 O enrichments were measured using isotope ratio mass spectrometry (IRMS). RESULTS: TEE was estimated at 9925 (9106-11236) [median and interquartile range], 9646 (9167-10540), and 9,638 (9220-10340) kJ.day-1 for women and at 13961 (12851-15347), 13353 (12651 15088) and 13211 (12653-14238) kJ.day-1 for men, using normalized non-Bayesian, independent Bayesian and hierarchical Bayesian approaches, respectively. A comparison of hierarchical Bayesian with normalized non-Bayesian methods indicated a marked difference in behaviour between genders. The median difference was -287 kJ.day-1 for women, and -750 kJ.day-1 for men. In men there is an appreciable compression of the TEE distribution obtained from the hierarchical model compared with the normalized non-Bayesian methods (range of TEE 11234-15431 kJ.day-1 vs 10786-18221 kJ.day-1 ). An analogous, yet smaller, compression is seen in women (7081-12287 kJ.day-1 vs 6989-13775 kJ.day-1 ). CONCLUSIONS: The Bayesian analysis is an appealing method to estimate TEE during DLW experiments. The principal advantages over those obtained using the classical least-squares method is the generation of potentially more useful estimates of TEE, and improved handling of outliers and missing data scenarios, particularly if a hierarchical model is used. PMID- 29027730 TI - Psychological distress in post-partum women after non-invasive prenatal testing (NIPT) in Japan. AB - AIM: The purpose of this study was to clarify the characteristics of psychological mental distress in post-partum women after non-invasive prenatal testing (NIPT) in Japan. METHODS: Psychological mental distress was assessed using the Kessler Psychological Distress Scale (K6). We compared patients with (i) low pre-NIPT K6 and low post-partum K6 scores (control group), and (ii) low pre-NIPT K6 and a high post-partum K6 scores (case group). RESULTS: Among the 697 women who underwent NIPT, 29 (4.2%) had low pre-NIPT K6 and high post-partum K6 scores (case group) and 668 (95.8%) had low pre-NIPT K6 and low post-partum K6 scores (control). Among women with negative NIPT findings, post-partum women with a high K6 score were compared to a control group of women with a low K6 score. Logistic regression analysis showed that primiparity (P = 0.007), low birthweight (P = 0.005) and use of intracytoplasmic sperm injection (P = 0.02) and assisted reproductive technology (P = 0.05) were significantly different between the groups. CONCLUSION: Even if women do not feel mental distress before NIPT, they may develop mental stress post-partum. In particular, primipara women who conceived through assisted reproductive technology (especially intracytoplasmic sperm injection) and gave birth to a low birthweight baby were more susceptible to developing post-partum distress. Thus, it is important to educate women that support is available, with consultation with other healthcare professionals during genetic counseling if necessary. Further studies are needed in order to determine the factors associated with post-partum mental distress. PMID- 29027731 TI - High-Performance Inorganic Perovskite Quantum Dot-Organic Semiconductor Hybrid Phototransistors. AB - All-inorganic lead halide perovskite quantum dots (IHP QDs) have great potentials in photodetectors. However, the photoresponsivity is limited by the low charge transport efficiency of the IHP QD layers. High-performance phototransistors based on IHP QDs hybridized with organic semiconductors (OSCs) are developed. The smooth surface of IHP QD layers ensures ordered packing of the OSC molecules above them. The OSCs significantly improve the transportation of the photoexcited charges, and the gate effect of the transistor structure significantly enhances the photoresponsivity while simultaneously maintaining high Iphoto /Idark ratio. The devices exhibit outstanding optoelectronic properties in terms of photoresponsivity (1.7 * 104 A W-1 ), detectivity (2.0 * 1014 Jones), external quantum efficiency (67000%), Iphoto /Idark ratio (8.1 * 104 ), and stability (100 d in air). The overall performances of our devices are superior to state-of-the art IHP photodetectors. The strategy utilized here is general and can be easily applied to many other perovskite photodetectors. PMID- 29027732 TI - Blunt cerebrovascular injury: early recognition and treatment options in asymptomatic patient. PMID- 29027733 TI - Improvement of wheat seed vitality by dielectric barrier discharge plasma treatment. AB - Influences of discharge voltage on wheat seed vitality were investigated in a dielectric barrier discharge (DBD) plasma system at atmospheric pressure and temperature. Six different treatments were designed, and their discharge voltages were 0.0, 9.0, 11.0, 13.0, 15.0, and 17.0 kV, respectively. Fifty seeds were exposed to the DBD plasma atmosphere with an air flow rate of 1.5 L min-1 for 4 min in each treatment, and then the DBD plasma-treated seeds were prepared for germination in several Petri dishes. Each treatment was repeated three times. Germination indexes, growth indexes, surface topography, water uptake, permeability, and alpha-amylase activity were measured. DBD plasma treatment at appropriate energy levels had positive effects on wheat seed germination and seedling growth. The germination potential, germination index, and vigor index significantly increased by 31.4%, 13.9%, and 54.6% after DBD treatment at 11.0 kV, respectively, in comparison to the control. Shoot length, root length, dry weight, and fresh weight also significantly increased after the DBD plasma treatment. The seed coat was softened and cracks were observed, systematization of the protein was strengthened, and amount of free starch grain increased after the DBD plasma treatment. Water uptake, relative electroconductivity, soluble protein, and alpha-amylase activity of the wheat seed were also significantly improved after the DBD plasma treatment. Roles of active species and ultraviolet radiation generated in the DBD plasma process in wheat seed germination and seedling growth are proposed. Bioelectromagnetics. 39:120-131, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29027734 TI - High resolution visualization and exo-proteomics reveal the physiological role of XlnR and AraR in plant biomass colonization and degradation by Aspergillus niger. AB - In A. niger, two transcription factors, AraR and XlnR, regulate the production of enzymes involved in degradation of arabinoxylan and catabolism of the released l arabinose and d-xylose. Deletion of both araR and xlnR in leads to reduced production of (hemi)cellulolytic enzymes and reduced growth on arabinan, arabinogalactan and xylan. In this study, we investigated the colonization and degradation of wheat bran by the A. niger reference strain CBS 137562 and araR/xlnR regulatory mutants using high-resolution microscopy and exo-proteomics. We discovered that wheat bran flakes have a 'rough' and 'smooth' surface with substantially different affinity towards fungal hyphae. While colonization of the rough side was possible for all strains, the xlnR mutants struggled to survive on the smooth side of the wheat bran particles after 20 and 40 h post inoculation. Impaired colonization ability of the smooth surface of wheat bran was linked to reduced potential of DeltaxlnR to secrete arabinoxylan and cellulose-degrading enzymes and indicates that XlnR is the major regulator that drives colonization of wheat bran in A. niger. PMID- 29027735 TI - Temporal trends in percutaneous coronary interventions thru the drug eluting stent era: Insights from 18,641 procedures performed over 12-year period. AB - BACKGROUND: The last decade, regarded as the DES era in PCI, has witnessed significant advances in the management of coronary disease. We aimed to assess temporal trends in the practice and outcome of percutaneous coronary intervention (PCI) during the drug eluting stent (DES) era. METHODS: We analyzed 18,641 consecutive PCI's performed between January 2004 and December 2016, distinguished by procedural date (Q1 : 2004-2006, n = 4,865; Q2 : 2007-2009, n = 4,977; Q3 : 2010-2012, n = 4,230; Q4 : 2013-2016, n = 4,569). RESULTS: At presentation, mean patients age was 65 (+/-11) years and 22.8% were females. Over time, there was a rise in the relative number of octogenarians (Q1 : 10.7% vs Q4 : 15.5%, P < 0.001) and an increase in the burden of most comorbidities (e.g., left ventricular dysfunction >= moderate and chronic kidney disease, P < 0.001 for both). Despite a 2-fold increase in the rate of complex interventions, and a 3 fold increase in the rate of unprotected left-main angioplasty (P < 0.001 for both), the radial approach was increasingly adopted (Q1 : 2% to Q4 : 63.5%, P < 0.001). DES implantation increased from 43% to 83% at the expense of bare metal stent (BMS) application, and accompanied by drug coated balloon sprout to 1.8%, P < 0.001. Kaplan-Meier survival curves revealed a time-based enhanced outcome, with a decreased rate of death, MI, target vessel revascularization and CABG over the years. CONCLUSIONS: In the last decade, PCI has evolved to offer better outcome to more elderly, sicker patient population, with more complex coronary disease interventions. The shift to second generation DES and to enhanced PCI techniques may explain part of this progress. PMID- 29027737 TI - An optical coherence tomography study of neointimal morphology and strut coverage at different time intervals from implantation of biodegradable polymer-coated sirolimus-eluting stents. AB - OBJECTIVES: The aim of the study was to capture the evolution of neointima after implantation of a biodegradable polymer-coated, sirolimus-eluting, cobalt chromium coronary stent system (BP-DES). BACKGROUND: Optical coherence tomography (OCT) suggests that in-stent neointimal morphology influences clinical outcomes after DES implantation. METHODS: Sixty patients treated with single BP-DES implantation were examined by quantitative coronary angiography (QCA) and OCT at 3, 6, and 12-month follow-up. RESULTS: Median late lumen loss by QCA (mm) was 0.04 (IQR 0, 0.08), 0.17 (IQR 0, 0.32), and 0.14 (IQR 0.07, 0.31) at 3, 6, and 12 month follow-up respectively (P = 0.03). OCT cross-section multilevel analysis showed uncovered struts in 3.90%, 1.78%, and 0.02% of struts respectively (P = 0.03). The corresponding malapposition rates were 0.12%, 0.04%, and 0%. Lipid rich neointima was observed only at 12-month follow-up in one restenotic lesion (0.77% cross-sections) that was accountable for the only target vessel revascularization. The homogeneous pattern was prevalent at all three time points, but its incidence displayed an upward trend (3 months: 59%; 6 months: 71%; 12 months: 88%) despite no difference in neointimal volume between 6 and 12 months. Conversely, a trend could be observed of decreasing incidence of heterogeneous pattern as the follow-up length increased. CONCLUSIONS: In this study of a single-type BP-DES, the majority of stent struts were covered within 3 months from implantation. While the quantitative neointimal accumulation plateaued at 6 months with no further significant increase beyond 6 months, the neointima continued to evolve qualitatively and mature along with better strut coverage between 6 and 12 months after implantation. PMID- 29027736 TI - Unravelling the Redox-catalytic Behavior of Ce4+ Metal-Organic Frameworks by X ray Absorption Spectroscopy. AB - The introduction of Ce4+ as a structural cation has been shown to be a promising route to redox active metal-organic frameworks (MOFs). However, the mechanism by which these MOFs act as redox catalysts remains unclear. Herein, we present a detailed study of the active site in [Ce6 O4 (OH)4 ]-based MOFs such as Ce-UiO 66, involved in the aerobic oxidation of benzyl alcohol, chosen as a model redox reaction. X-ray absorption spectroscopy (XAS) data confirm the reduction of up to one Ce4+ ion per Ce6 cluster with a corresponding outwards radial shift due to the larger radius of the Ce3+ cation, while not compromising the structural integrity of the framework, as evidenced by powder X-ray diffraction. This unambiguously demonstrates the involvement of the metal node in the catalytic cycle and explains the need for 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) as a redox mediator to bridge the gap between the one-electron oxidation of the Ce4+ /Ce3+ couple and the two-electron alcohol oxidation. Finally, an improved catalytic system with Ce-MOF-808 and TEMPO was developed which outperformed all other tested Ce4+ -MOFs. PMID- 29027738 TI - The development of the cucullaris muscle and the branchial musculature in the Longnose Gar, (Lepisosteus osseus, Lepisosteiformes, Actinopterygii) and its implications for the evolution and development of the head/trunk interface in vertebrates. AB - The vertebrate head/trunk interface is the region of the body where the different developmental programs of the head and trunk come in contact. Many anatomical structures that develop in this transition zone differ from similar structures in the head or the trunk. This is best exemplified by the cucullaris/trapezius muscle, spanning the head/trunk interface by connecting the head to the pectoral girdle. The source of this muscle has been claimed to be either the unsegmented head mesoderm or the somites of the trunk. However most recent data on the development of the cucullaris muscle are derived from tetrapods and information from actinopterygian taxa is scarce. We used classical histology in combination with fluorescent whole-mount antibody staining and micro-computed tomography to investigate the developmental pattern of the cucullaris and the branchial muscles in a basal actinopterygian, the Longnose gar (Lepisosteus osseus). Our results show (1) that the cucullaris has been misidentified in earlier studies on its development in Lepisosteus. (2) Cucullaris development is delayed compared to other head and trunk muscles. (3) This developmental pattern of the cucullaris is similar to that reported from some tetrapod taxa. (4) That the retractor dorsalis muscle of L. osseus shows a delayed developmental pattern similar to the cucullaris. Our data are in agreement with an explanatory scenario for the cucullaris development in tetrapods, suggesting that these mechanisms are conserved throughout the Osteichthyes. Furthermore the developmental pattern of the retractor dorsalis, also spanning the head/trunk interface, seems to be controlled by similar mechanisms. PMID- 29027739 TI - Erratum. PMID- 29027740 TI - Effective tolerance based on resource reallocation is a virus-specific defence in Arabidopsis thaliana. AB - Plant viruses often harm their hosts, which have developed mechanisms to prevent or minimize the effects of virus infection. Resistance and tolerance are the two main plant defences to pathogens. Although resistance to plant viruses has been studied extensively, tolerance has received much less attention. Theory predicts that tolerance to low-virulent parasites would be achieved through resource reallocation from growth to reproduction, whereas tolerance to high-virulent parasites would be attained through shortening of the pre-reproductive period. We have shown previously that the tolerance of Arabidopsis thaliana to Cucumber mosaic virus (CMV), a relatively low-virulent virus in this host, accords to these predictions. However, whether other viruses trigger the same response, and how A. thaliana copes with highly virulent virus infections remains unexplored. To address these questions, we challenged six A. thaliana wild genotypes with five viruses with different genomic structures, life histories and transmission modes. In these plants, we quantified virus multiplication, virulence, and the effects of infection on plant growth and reproduction, and on the developmental schedule. Our results indicate that virus multiplication varies according to the virus * host genotype interaction. Conversely, effective tolerance is observed only on CMV infection, and is associated with resource reallocation from growth to reproduction. Tolerance to the other viruses is observed only in specific host virus combinations and, at odds with theoretical predictions, is linked to longer pre-reproductive periods. These findings only partially agree with theoretical predictions, and contribute to a better understanding of pathogenic processes in plant-virus interactions. PMID- 29027741 TI - Recommendations for standardized risk factor definitions in pediatric hospital acquired venous thromboembolism to inform future prevention trials: communication from the SSC of the ISTH. PMID- 29027742 TI - Disentangling causation: complex roles of coral-associated microorganisms in disease. AB - Rapidly changing climate regimes combined with other anthropogenic pressures are implicated in increased disease epizootics among reef building corals, resulting in changing habitat structure. These accumulated stressors directly contribute to disease outbreaks by compromising the coral host immune system, modulating virulence of microbial pathogens and/or disrupting the balance within the microbiome of the holobiont. Disentangling coral disease causation has been challenging, and while progress has been made for certain diseases in terms of the roles the associated microorganisms play, it is evident that like in other marine or terrestrial systems, compromised host health cannot always be attributed to a single causative agent. Here, we summarize the current state in knowledge of microbial induced coral diseases, and discuss challenges and strategies to further disentangle disease causation. With the major environmental pressures coral reefs face over the next century, understanding interactions between host, environmental and microbial causative agent(s) that lead to disease, is still a priority to enable development of effective strategies for building resilience into coral populations. PMID- 29027743 TI - Generalized pustular psoriasis triggered by Zika virus infection. AB - Zika virus is an emerging arbovirus, which is expanding in epidemic proportions through tropical and subtropical areas of the world. Although Zika is linked to a number of congenital and neurological complications, there is scarce knowledge on the impact of ZIKV infection in human skin. We report the case of a 68-year old woman who presented with generalized pustular psoriasis after a preceding and otherwise uneventful episode of ZIKV infection. Based on recent experimental data on the biology of ZIKV infection in the cutaneous environment, we speculate that ZIKV may have directly triggered the development of generalized pustular psoriasis by stimulation of keratinocyte-derived mediators of inflammation and a polyfunctional T-cell driven immune reaction in the cutaneous milieu. PMID- 29027745 TI - The importance of measuring skin resistance for electrical nociceptive stimulation in standing horses. PMID- 29027746 TI - Racehorse injuries: Have we only got half the story? PMID- 29027744 TI - Concise Review: Induced Pluripotent Stem Cell Models for Neuropsychiatric Diseases. AB - The major neuropsychiatric conditions of schizophrenia, affective disorders, and infantile autism are characterized by chronic symptoms of episodic, stable, or progressive nature that result in significant morbidity. Symptomatic treatments are the mainstay but do not resolve the underlying disease processes, which are themselves poorly understood. The prototype psychotropic drugs are of variable efficacy, with therapeutic mechanisms of action that are still uncertain. Thus, neuropsychiatric disorders are ripe for new technologies and approaches with the potential to revolutionize mechanistic understanding and drive the development of novel targeted treatments. The advent of methods to produce patient-derived stem cell models and three-dimensional organoids with the capacity to differentiate into neurons and the various neuronal cellular lineages mark such an advance. We discuss numerous techniques involved, their applications, and areas that require further optimization. Stem Cells Translational Medicine 2017;6:2062-2070. PMID- 29027747 TI - Isn't it high time we talked openly about racism? PMID- 29027748 TI - Microfluidics approach to investigate the role of dynamic similitude in osteocyte mechanobiology. AB - Fluid flow is an important regulator of cell function and metabolism in many tissues. Fluid shear stresses have been used to level the mechanical stimuli applied in vitro with what occurs in vivo. However, these experiments often lack dynamic similarity, which is necessary to ensure the validity of the model. For interstitial fluid flow, the major requirement for dynamic similarity is the Reynolds number (Re), the ratio of inertial to viscous forces, is the same between the system and model. To study the necessity of dynamic similarity for cell mechanotransduction studies, we investigated the response of osteocyte-like MLO-Y4 cells to different Re flows at the same level of fluid shear stress. Osteocytes were chosen for this study as flows applied in vitro and in vivo have Re that are orders of magnitude different. We hypothesize that osteocytes' response to fluid flow is Re dependent. We observed that cells exposed to lower and higher Re flows developed rounded and triangular morphologies, respectively. Lower Re flows also reduced apoptosis rates compared to higher Re flows. Furthermore, MLO-Y4 cells exposed to higher Re flows had stronger calcium responses compared to lower Re flows. However, by also controlling for flow rate, the lower Re flows induced a stronger calcium response; while degradation of components of the osteocyte glycocalyx reversed this effect. This work suggests that osteocytes are highly sensitive to differences in Re, independent of just shear stresses, supporting the need for improved in vitro flow platforms that better recapitulate the physiological environment. (c) 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:663-671, 2018. PMID- 29027749 TI - Permanent tooth agenesis in individuals with non-syndromic Robin sequence: a systematic review and meta-analysis. AB - OBJECTIVES: To evaluate prevalence rates and patterns of permanent tooth agenesis in individuals with non-syndromic Robin sequence (ns-RS). MATERIAL AND METHODS: Two investigators independently carried out a literature search, using PubMed, Web of Science, Ovid, EMBASE and the Cochrane Library, identifying articles relating to permanent tooth agenesis, diagnosed using panoramic radiographs, in individuals with ns-RS. The outcomes desired were prevalence rates and patterns of permanent tooth agenesis. The final search was carried out in January 2017. RESULTS: Six articles were selected for inclusion, with a total of 448 individuals with ns-RS. Data available in each study varied which allowed conducting further specific meta-analyses only on sample sizes of 339 or 378 individuals from three or four of the six included articles. The overall estimated prevalence rate of permanent tooth agenesis was 42% (95% CI: 35%-48%), excluding third molars, with no sex predilection. In individuals with tooth agenesis, approximately 30% had one missing tooth while 40% had two missing teeth. Tooth agenesis was more commonly bilateral (Relative Risk 2) and found in the mandible (Relative Risk 1.6). The highest prevalence of permanent tooth agenesis was found for mandibular second premolars (26%) followed by maxillary second premolars (14%). The most common tooth agenesis patterns were the agenesis of both mandibular second premolars, followed by the agenesis of all second premolars. CONCLUSION: Individuals with ns-RS have high prevalence rates of permanent tooth agenesis. The most prevalent tooth agenesis patterns are bilateral symmetric tooth agenesis, most commonly agenesis of both mandibular second premolars. PMID- 29027750 TI - A Simple and Robust Method for Culturing Human-Induced Pluripotent Stem Cells in an Undifferentiated State Using Botulinum Hemagglutinin. AB - Clinical and industrial applications of human-induced pluripotent stem cells (hiPSCs) is hindered by the lack of robust culture strategies capable of sustaining a culture in an undifferentiated state. Here, a simple and robust hiPSC-culture-propagation strategy incorporating botulinum hemagglutinin (HA) mediated selective removal of cells deviating from an undifferentiated state is developed. After HA treatment, cell-cell adhesion is disrupted, and deviated cells detached from the central region of the colony to subsequently form tight monolayer colonies following prolonged incubation. The authors find that the temporal and dose-dependent activity of HA regulated deviated-cell removal and recoverability after disruption of cell-cell adhesion in hiPSC colonies. The effects of HA are confirmed under all culture conditions examined, regardless of hiPSC line and feeder-dependent or -free culture conditions. After routine application of our HA-treatment paradigm for serial passages, hiPSCs maintains expression of pluripotent markers and readily forms embryoid bodies expressing markers for all three germ-cell layers. This method enables highly efficient culturing of hiPSCs and use of entire undifferentiated portions without having to pick deviated cells manually. This simple and readily reproducible culture strategy is a potentially useful tool for improving the robust and scalable maintenance of undifferentiated hiPSC cultures. PMID- 29027751 TI - The emerging role of mRNA methylation in normal and pathological behavior. AB - Covalent RNA modifications were recently rediscovered as abundant RNA chemical tags. Similarly to DNA epigenetic modifications, they have been proposed as essential regulators of gene expression. Here we focus on 3 of the most abundant adenosine methylations: N6-methyladenosine (m6 A), N6,2'-O-dimethyladenosine (m6 Am) and N1-methyladenosine (m1 A). We review the potential role of these modifications on mature mRNA in regulating gene expression within the adult brain, nervous system function and normal and pathological behavior. Dynamic mRNA modifications, summarized as the epitranscriptome, regulate transcript maturation, translation and decay, and thus crucially determine gene expression beyond primary transcription regulation. However, the extent of this regulation in the healthy and maladapted adult brain is poorly understood. Analyzing this novel layer of gene expression control in addition to epigenetics and posttranslational regulation of proteins will be highly relevant for understanding the molecular underpinnings of behavior and psychiatric disorders. PMID- 29027752 TI - Label-Free Multiplex DNA Detection Utilizing Projected Capacitive Touchscreen. AB - A novel strategy to achieve label-free multiplex DNA detection system based on the projected capacitive touchscreen is developed. Touchscreen panel is first fabricated by patterning the ITO (indium-tin-oxide) electrode array on the glass wafer, and the electrodes are modified with the respective capture probe DNA sequences complementary to hemagglutinin1 (H1), neuraminidase1 (N1), and matrix1 (M1) DNA to demonstrate the molecular diagnosis of H1N1 influenza virus as a model pathogen. DNA sample is applied to the electrodes to allow hybridization of target DNA with the corresponding complementary capture probe. As a result, the hybridization event significantly enhanced the capacitance on the electrode, which can be very conveniently detected by the projected capacitive touchscreen. Based on this design principle, the authors have successfully detected target regions of H1N1 influenza virus in a label-free multiplexed manner. This touchscreen-based detecting system would greatly benefit the point-of-care testing (POCT) in various diagnostic applications. PMID- 29027753 TI - Li+ Ion Conductors with Adamantane-Type Nitridophosphate Anions beta-Li10 P4 N10 and Li13 P4 N10 X3 with X=Cl, Br. AB - beta-Li10 P4 N10 and Li13 P4 N10 X3 with X=Cl, Br have been synthesized from mixtures of P3 N5 , Li3 N, LiX, LiPN2 , and Li7 PN4 at temperatures below 850 degrees C. beta-Li10 P4 N10 is the low-temperature polymorph of alpha-Li10 P4 N10 and crystallizes in the trigonal space group R3. It is made up of non-condensed [P4 N10 ]10- T2 supertetrahedra, which are arranged in sphalerite-analogous packing. Li13 P4 N10 X3 (X=Cl, Br) crystallizes in the cubic space group Fm3?m . Both isomorphic compounds comprise adamantane-type [P4 N10 ]10- , Li+ ions, and halides, which form octahedra. These octahedra build up a face-centered cubic packing, whose tetrahedral voids are occupied by the [P4 N10 ]10- ions. The crystal structures have been elucidated from X-ray powder diffraction data and corroborated by EDX measurements, solid-state NMR, and FTIR spectroscopy. Furthermore, we have examined the phase transition between alpha- and beta-Li10 P4 N10 . To confirm the ionic character, the migration pathways of the Li+ ions have been evaluated and the ion conductivity and its temperature dependence have been determined by impedance spectroscopy. XPS measurements have been carried out to analyze the stability with respect to Li metal. PMID- 29027755 TI - Compressed sensing approach for wrist vein biometrics. AB - The work describes features of the compressed sensing (CS) approach utilized for development of a wearable system for wrist vein recognition with single-pixel detection; we consider this system useful for biometrics authentication purposes. The CS approach implies use of a spatial light modulation (SLM) which, in our case, can be performed differently-with a liquid crystal display or diffusely scattering medium. We show that compressed sensing combined with above-mentioned means of SLM allows us to avoid using an optical system-a limiting factor for wearable devices. The trade-off between the 2 different SLM approaches regarding issues of practical implementation of CS approach for wrist vein recognition purposes is discussed. A possible solution of a misalignment problem-a typical issue for imaging systems based upon 2D arrays of photodiodes-is also proposed. Proposed design of the wearable device for wrist vein recognition is based upon single-pixel detection. PMID- 29027754 TI - Afatinib treatment of a squamous lung cancer after tumor progression of nivolumab. AB - Nivolumab prolonged disease control in a patient with advanced squamous lung cancer that was refractory to multiple treatments. The rapid eradication of cancer after the administration of nivolumab caused hemoptysis and repeated infection. Six months after immunotherapy, mediastinal lymph node metastasis developed and afatinib effectively relieved dysphonia associated with nerve paralysis. PMID- 29027756 TI - What is the outcome in patients with acute leukaemia who survive severe acute graft-versus-host disease? AB - BACKGROUND: Acute graft-versus-host disease (aGVHD) is a major complication of allogeneic haematopoietic stem cell transplantation (HSCT). With new promising therapies, survival may improve for severe aGVHD. OBJECTIVES: We wanted to analyze the long-term outcome in patients who survive severe aGVHD. METHODS: This study was a landmark analysis of 23 567 patients with acute Leukaemia who survived for more than 6 months after HSCT, 2002-2014. Patients alive after severe aGVHD (n = 1738) were compared to controls. RESULTS: Patients with severe aGVHD had higher non-relapse mortality (NRM) and higher rate of extensive chronic GVHD (cGVHD) than the controls (P < 10-5 ). The probability of relapse was significantly lower in the severe aGVHD group, but Leukaemia-free survival (LFS) and overall survival were significantly lower than for the controls (P < 10-5 ). Five-year LFS in patients with severe aGVHD was 49%, as opposed to 61% in controls with no or mild GVHD and 59% in patients with moderate GVHD. CONCLUSIONS: HSCT patients who survive severe aGVHD have higher risk of developing extensive cGVHD, a higher NRM, a lower relapse probability, and lower LFS than other HSCT patients. This study is a platform for outcome analysis in patients treated with novel therapies for acute GVHD. PMID- 29027757 TI - Straightforward Design of Fluorescent Receptors for Sulfate: Study of Non Covalent Interactions Contributing to Host-Guest Formation. AB - A straightforward design of receptors for binding and sensing of sulfate in aqueous medium was developed. The design involves the connection of two naphthalimide-based pH probes through a hydrogen-bonding motif. The structure of the receptor-sulfate complex, predicted by DFT calculations, was unambiguously confirmed by NMR measurements. There are three major interactions stabilizing the host-guest complex: electrostatic interactions, hydrogen bonding, and stacking interactions of the dyes. Study of two control receptors containing either one dye or methyl amide groups instead of amides, revealed that electrostatic and hydrogen bonding interactions contribute the most to affinity and selectivity of receptors. The receptors can detect sulfate in a 1:1 THF-buffer mixture in pH window 3.6-4.5 demonstrating up to 7-fold fluorescence enhancement. To the best of our knowledge, the reported PET (photoinduced electron transfer) anion probes possess the largest response for sulfate in aqueous solution yet described. PMID- 29027758 TI - Characterization of UDP-glucuronosyltransferase genes and their possible roles in multi-insecticide resistance in Plutella xylostella (L.). AB - BACKGROUND: Uridine diphosphate-glucuronosyltransferases (UGTs), as multifunctional detoxification enzymes, play important roles in the biotransformation of various compounds. However, their roles in insecticide resistance are still unclear. This study presents a genome-wide identification of the UGTs in diamondback moth, Plutella xylostella (L.), a notorious insect pest of cruciferous crops worldwide. The possible roles of these UGTs in insecticide resistance were evaluated. RESULTS: A total of 21 putative UGTs in P. xylostella were identified. Quantitative real-time polymerase chain reaction (PCR)-based analyses showed that all the UGT genes were expressed in all tested developmental stages and tissues. Bioassay results indicated that a field-collected population (BL) was resistant to 9 of 10 commonly used insecticides, and 10 of 21 UGT mRNAs were upregulated in the BL population. Exposure to the LC50 of each insecticide affected the expression of most UGT genes. Among these, the expression levels of UGT40V1, UGT45B1 and UGT33AA4 were induced by more than five insecticides, whereas indoxacarb and metaflumizone significantly repressed the expression of most UGT genes. CONCLUSION: UGTs may play important roles in the metabolism of commonly used insecticides in P. xylostella. These findings provide valuable information for further research on the physiological and toxicological functions of specific UGT genes in P. xylostella. (c) 2017 Society of Chemical Industry. PMID- 29027759 TI - Greek Physiotherapists' Perspectives on Rehabilitation Following Total Knee Replacement: a Descriptive Survey. AB - BACKGROUND AND PURPOSE: In Greece, as in many countries, there is a scarcity of evidence in the type of physiotherapy services offered for the rehabilitation of total knee replacement (TKR). Despite the number of TKRs annually performed in Greece (over 10,000), there are no available clinical guidelines as to the content of best physiotherapy practice. The aim of this nationwide survey undertaken by physiotherapists treating TKR patients post-operatively was to record standard practice and services available in Greece. METHODS: Design: cross country survey Ten per cent of all registered physiotherapists working in public/private sectors were recruited. The developed survey comprised of questions regarding therapists' profile, protocols implemented at different stages of rehabilitation and the aims and modalities used. RESULTS: A 58.7% response rate was achieved, where 36% (47/132) of respondents were treating patients in the inpatient phase and 64% (85/132) after hospital discharge. Patients in Greece are discharged with a home-based exercise program (56.7%) and, to a lesser extent, are referred to rehabilitation centres (13.3%). Strengthening, range of movement and functionality seemed to be the primary goals especially in the inpatient phase, whereas in the outpatient phase, apart from the larger differences identified, functionality and balance training were more frequently reported. CONCLUSIONS: No significant variations in practice were found during inpatient rehabilitation, whilst there seemed to be diversity across outpatient physiotherapy programs. The current survey suggests that patient's general health and psychological and behavioural issues are the criteria by which physiotherapists select the volume of implemented exercise and progression. However, no specific guidelines were followed. Copyright (c) 2016 John Wiley & Sons, Ltd. PMID- 29027761 TI - Oxidative stress and mitochondrial dynamics malfunction are linked in Pelizaeus Merzbacher disease. AB - Pelizaeus-Merzbacher disease (PMD) is a fatal hypomyelinating disorder characterized by early impairment of motor development, nystagmus, choreoathetotic movements, ataxia and progressive spasticity. PMD is caused by variations in the proteolipid protein gene PLP1, which encodes the two major myelin proteins of the central nervous system, PLP and its spliced isoform DM20, in oligodendrocytes. Large duplications including the entire PLP1 gene are the most frequent causative mutation leading to the classical form of PMD. The Plp1 overexpressing mouse model (PLP-tg66/66 ) develops a phenotype very similar to human PMD, with early and severe motor dysfunction and a dramatic decrease in lifespan. The sequence of cellular events that cause neurodegeneration and ultimately death is poorly understood. In this work, we analyzed patient-derived fibroblasts and spinal cords of the PLP-tg66/66 mouse model, and identified redox imbalance, with altered antioxidant defense and oxidative damage to several enzymes involved in ATP production, such as glycolytic enzymes, creatine kinase and mitochondrial proteins from the Krebs cycle and oxidative phosphorylation. We also evidenced malfunction of the mitochondria compartment with increased ROS production and depolarization in PMD patient's fibroblasts, which was prevented by the antioxidant N-acetyl-cysteine. Finally, we uncovered an impairment of mitochondrial dynamics in patient's fibroblasts which may help explain the ultrastructural abnormalities of mitochondria morphology detected in spinal cords from PLP-tg66/66 mice. Altogether, these results underscore the link between redox and metabolic homeostasis in myelin diseases, provide insight into the pathophysiology of PMD, and may bear implications for tailored pharmacological intervention. PMID- 29027763 TI - Primary Sjogren's syndrome in Asia: Yin and Yang? PMID- 29027762 TI - Fresh Noncultured Endothelial Progenitor Cells Improve Neonatal Lung Hyperoxia Induced Alveolar Injury. AB - Treatment of preterm human infants with high oxygen can result in disrupted lung alveolar and vascular development. Local or systemic administration of endothelial progenitor cells (EPCs) is reported to remedy such disruption in animal models. In this study, the effects of both fresh (enriched for KDR) and cultured bone marrow (BM)-derived cell populations with EPC characteristics were examined following hyperoxia in neonatal mouse lungs. Intraperitoneal injection of fresh EPCs into five-day-old mice treated with 90% oxygen resulted in full recovery of hyperoxia-induced alveolar disruption by 56 days of age. Partial recovery in septal number following hyperoxia was observed following injection of short-term cultured EPCs, yet aberrant tissue growths appeared following injection of long-term cultured cells. Fresh and long-term cultured cells had no impact on blood vessel development. Short-term cultured cells increased blood vessel number in normoxic and hyperoxic mice by 28 days but had no impact on day 56. Injection of fresh EPCs into normoxic mice significantly reduced alveolarization compared with phosphate buffered saline-injected normoxic controls. These results indicate that fresh BM EPCs have a higher and safer corrective profile in a hyperoxia-induced lung injury model compared with cultured BM EPCs but may be detrimental to the normoxic lung. The appearance of aberrant tissue growths and other side effects following injection of cultured EPCs warrants further investigation. Stem Cells Translational Medicine 2017;6:2094-2105. PMID- 29027764 TI - A Decatwistacene with an Overall 170 degrees Torsion. AB - Two different lengths of twistacenes, namely hexatwistacene and decatwistacene, induced by steric hindrance between imide groups and neighboring annulated benzene rings, were synthesized by bottom-up synthesis of palladium-catalyzed Suzuki cross-coupling and C-H activation. Single-crystal X-ray analyses revealed that decatwistacene, which is the longest twistacene reported, exhibits an astonishing overall end-to-end torsion angle of about 170 degrees , the largest torsion angle reported. Both twistacenes have an enhanced solubility and stability with respect to light and oxygen owing to their large twisting deformations together with much lower LUMO levels caused by the introduction of imide groups, opening a window to the narrowest chiral graphene nanoribbons with good stability and processability. PMID- 29027765 TI - Factor XIII deficiency diagnosis: Challenges and tools. AB - Factor XIII deficiency (FXIIID) is a rare hereditary bleeding disorder arising from heterogeneous mutations, which can lead to life-threatening hemorrhage. The diagnosis of FXIIID is challenging due to normal standard coagulation assays requiring specific FXIII assays for diagnosis, which is especially difficult in developing countries. This report presents an overview of FXIIID diagnosis and laboratory methods and suggests an algorithm to improve diagnostic efficiency and prevent missed or delayed FXIIID diagnosis. Assays measuring FXIII activity: The currently available assays utilized to diagnose FXIIID, including an overview of their complexity, reliability, sensitivity, and specificity, as well as mutational analysis are reviewed. The use of a FXIII inhibitor assay is described. Diagnostic tools in FXIIID: Many laboratories are not equipped with quantitative FXIII activity assays, and if available, limitations in lower activity ranges are important to consider. Clot solubility tests are not standardized, have a low sensitivity, and are therefore not recommended as routine screening test; however, they are the first screening test in almost all coagulation laboratories in developing countries. To minimize the number of patients with undiagnosed FXIIID, test quality should be improved in less well equipped laboratories. Common country-specific mutations may facilitate diagnosis through targeted genetic analysis in reference laboratories in suspected cases. However, genetic analysis may not be feasible in every country and may miss spontaneous mutations. Centralized FXIII activity measurements should also be considered. An algorithm for diagnosis of FXIIID including different approaches dependent upon laboratory capability is proposed. PMID- 29027766 TI - Kinetic Modeling of Mammalian Cell Culture Bioprocessing: The Quest to Advance Biomanufacturing. AB - Kinetic modeling is the most suitable framework to describe the dynamic behavior of mammalian cell culture although its industrial application is still in its infancy. Herein, the authors reviewed mammalian bioprocess relevant kinetic models, and found that the simple unstructured-unsegregated approach utilizing empirical Monod-type kinetics based on limiting substrates and inhibitory metabolites is commonly used due to its traceability and simple formalism. Notably, the available kinetic models are typically small to moderate in size, and the development of large-scale models is severely hampered by the scarcity of kinetic data and limitations in current parameter estimation methods. The recent availability of abundant high-throughput multi-omics datasets from mammalian cell cultures have now paved the way to improve parameterization of kinetic models, and integrate regulatory, signaling, and product quality related intracellular events, as well as cellular metabolism within the modeling framework. Ultimately, the authors foresee that multi-scale modeling is the way forward in building predictive kinetic models of mammalian cell culture to advance biomanufacturing. PMID- 29027767 TI - Monitoring of brown stink bug (Hemiptera: Pentatomidae) population dynamics in corn to predict its abundance using weather data. AB - The brown stink bug (BSB), Euschistus servus (Say) (Hemiptera: Pentatomidae), is a serious economic pest of corn production in the southeastern United States. The BSB population dynamics was monitored for 17 weeks from tasseling to preharvest of corn plants (i.e., late May to mid-September) using pheromone traps in three corn fields from 2005 to 2009. The trap data showed two peaks in early June and mid-August, respectively. The relationship between trap catch and pregrowing season weather data was examined using correlation and stepwise multiple factor regression analyses. Weather indices used for the analyses were accumulated growing degree day (AGDD), number of days with minimum temperature below 0 degrees C (Subz), accumulated daily maximum (AMaxT) and minimum temperatures (AMinT) and rainfall (ARain). The weather indices were calculated with lower (10 degrees C) and upper (35 degrees C) as biological thresholds. The parameters used in regression analysis were seasonal abundance (or overall mean of BSB adult catch) (BSBm), number of BSB adults caught at a peak (PeakBSB), and peak week (Peakwk). The BSBm was negatively related to high temperature (AmaxT or AGDD) consistently, whereas 1stPeakBSB was positively correlated to both ARain and Subz, irrespective of weather data durations (the first 4, 4.5, and 5 months). In contrast, the 7-month weather data (AGDD7) were negatively correlated to the BSBm only, but not correlated to the second PeakBSB. The 5-year monitoring study demonstrated that weather data can be used to predict the BSB abundance at its first peak in tasseling corn fields in the southeastern U.S. states. PMID- 29027768 TI - Religious Exemptions and Accommodations for Coverage of Certain Preventive Services Under the Affordable Care Act. Interim final rules with requestfor comments. AB - The United States has a long history of providing conscience protections in the regulation of health care for entities and individuals with objections based on religious beliefs and moral convictions. These interim final rules expand exemptions to protect religious beliefs for certain entities and individuals whose health plans are subject to a mandate of contraceptive coverage through guidance issued pursuant to the Patient Protection and Affordable Care Act. These rules do not alter the discretion of the Health Resources and Services Administration (HRSA), a component of the United States Department of Health and Human Services (HHS), to maintain the guidelines requiring contraceptive coverage where no regulatorily recognized objection exists. These rules also leave the "accommodation" process in place as an optional process for certain exempt entities that wish to use it voluntarily. These rules do not alter multiple other Federal programs that provide free or subsidized contraceptives for women at risk of unintended pregnancy. PMID- 29027769 TI - Moral Exemptions and Accommodations for Coverage of Certain Preventive Services Under the Affordable Care Act. Interim final rules with requestfor comments. AB - The United States has a long history of providing conscience protections in the regulation of health care for entities and individuals with objections based on religious beliefs or moral convictions. These interim final rules expand exemptions to protect moral convictions for certain entities and individuals whose health plans are subject to a mandate of contraceptive coverage through guidance issued pursuant to the Patient Protection and Affordable Care Act. These rules do not alter the discretion of the Health Resources and Services Administration, a component of the United States Department of Health and Human Services, to maintain the guidelines requiring contraceptive coverage where no regulatorily recognized objection exists. These rules also provide certain morally objecting entities access to the voluntary "accommodation" process regarding such coverage. These rules do not alter multiple other Federal programs that provide free or subsidized contraceptives for women at risk of unintended pregnancy. PMID- 29027771 TI - Two different placement paths in popliteal fossa with a novel nerve block needle for postoperative analgesia after foot and ankle surgery. AB - BACKGROUND: Previous studies have documented that single injection nearby the sciatic nerve bifurcation would influence the anesthesia and analgesia effect. But this is uncertain for preoperative continuous popliteal sciatic nerve block. This trial was conducted to compare two paths (proximal to the bifurcation and at the bifurcation) of ultrasound-guided continuous popliteal sciatic nerve block in foot and ankle surgery. METHODS: Forty recruited objects were randomly assigned to receive ultrasound-guided continuous popliteal sciatic nerve block at the puncture path proximal to the nerve bifurcation either at the nerve bifurcation. Subjects received an injection using a novel nerve block needle with external indwelling cannula guided by ultrasound invented by the corresponding author. The external indwelling cannula was inserted for postoperative analgesia. The primary outcome was NRS scores (at rest and during movement) times at 24 hours after surgery. The secondary outcomes included the measurements related to the performance of the nerve block and efficacy of analgesia, such as anesthesia effect grade, grade of nausea and vomiting, case number of patients with cannula leaking, occlusion or slipping, patient satisfaction, etc. RESULTS: During the surgery, six subjects in the proximal group needed additional analgesic, significantly different from one in the at bifurcation group (P<0.05). There was significant difference on anesthesia effect rating, 1.6+/-0.8 in the proximal group and 1.1+/-0.4 in another (P<0.05). The proximal group got 2.1+/-1.6 of NRS on rest at 24 hours and 1.7+/-1.5 at 48 hours, and the at bifurcation group got 0.9+/-1.4 at 24 hours and 0.7+/-1.1 at 48 hours (P<0.05). The proximal group got more PCA times during 6-24 hours and 24-48 hours and lower satisfaction scores. CONCLUSIONS: Continuous popliteal sciatic nerve block at nerve bifurcation could receive better analgesia effect and more patients' satisfaction, rather than proximal to the bifurcation. PMID- 29027770 TI - Bispectral Index and non-Bispectral Index anesthetic protocols on postoperative recovery outcomes. AB - INTRODUCTION: The study aimed to compare Bispectral Index (BIS) and non-BIS anesthetic protocols on postoperative recovery outcomes. EVIDENCE ACQUISITION: Medline, PubMed, Cochrane, EMBASE, and Google Scholar databases were searched until January 21, 2016. EVIDENCE SYNTHESIS: Twenty-six studies were included with a total of 9537 patients. BIS monitoring was significantly associated with shorter time to eye opening (P=0.001), time to extubation (P<0.001), and time to orientation (P=0.002) compared with non-BIS monitoring. No difference between groups was seen with respect to hypoxemia, postoperative nausea and vomiting (PONV), time to oral fluid intake, and length of Postanesthesia Care Unit (PACU) stay (P values >=0.185). CONCLUSIONS: The use of BIS-monitoring is superior to non-BIS monitored anesthesia in terms of shorter time to eye-opening, extubation, and orientation. BIS monitor may be considered a safe and effective method for monitoring depth of anesthesia during surgery. PMID- 29027772 TI - Supraglottic airway devices: indications, contraindications and management. AB - Supraglottic airway devices (SADs) have become an essential tool in airway management. Over the past three decades, these devices have been increasingly adopted as an alternative to face mask ventilation and/or endotracheal intubation. The range of proposed uses and features has increased significantly. They are used in pre- and in-hospital settings, elective and emergency anesthesia, in spontaneously breathing and ventilated patients, as conduits for intubation, as a bridge to extubation and for airway rescue. With SADs, serious complications such as aspiration and loss of airway are rare and largely preventable. Adequate operator experience, familiarity with the selected device, attention to details and careful patient selection are fundamental to safety and proficiency. In this review, we explore the increasing proposed uses for SADs and discuss possible complications and the management of these. PMID- 29027773 TI - Perioperative pain management in cardiac surgery: a systematic review. AB - BACKGROUND: Every year, more than 1.5 million patients, who undergo cardiac surgery worldwide, are exposed to a series of factors that can trigger acute postoperative pain associated with hemodynamic instability, respiratory complications, and psychological disorders. Through an evaluation of literature data about postoperative pain in cardiac surgery we define unmet needs and potential objectives for future research on this often-underestimated problem. METHODS: Following PRISMA Guidelines, a systematic literature search was carried out by two independent researchers on Scopus, CINAHL, the Cochrane Library, and PubMed using the key words: (perioperative OR postoperative) analgesia AND "cardiac surgery." Papers concerning children, or published prior to 2000, were considered ineligible, as well as abstracts, animal studies, and studies written in languages other than English. RESULTS: Fifty-four papers were selected and subsequently divided into two main categories: systemic analgesic drugs and regional anesthesia techniques. CONCLUSIONS: Over the past 17 years, opioids are still the most extensively used therapy, whereas we found only few trials investigating other drugs (e.g. paracetamol). Regional anesthesia techniques, especially thoracic epidural analgesia and intrathecal morphine administration, can effectively treat pain, but have not yet showed any significant impact on major clinical outcomes, with several concerns related to their potential complications. To date multimodal analgesia with implementation of regional analgesia seems to be the best choice. In the future, better-designed studies should consider other drugs stratifying groups according to comorbidities and risk factors, as well as using standardized units of measurement. PMID- 29027774 TI - Rational approach to transfusion in liver transplantation. AB - For over 50 years patients with liver cirrhosis were considered to be at markedly increased risk of bleeding. This dogma was seemingly supported by abnormalities in standard laboratory tests (SLTs), such as the prothrombin time, that were interpreted as indicating a bleeding diathesis. However, publications from the last decade have revealed SLTs to be poor predictors of bleeding and it is now understood that stable patients with cirrhosis have a rebalanced haemostatic system and preserved thrombin generation. Viscoelastic tests (VETs), such as ROTEM(r) or TEGTM allow dynamic assessment of the entire coagulation process and provide a better illustration of the interactions between pro- and anticoagulants as well as platelets. Despite their documented success in reducing transfusion rates in liver transplantation more than 30 years ago, the adoption of VETs has been met with some resistance and has only recently gained significant momentum. Bleeding risk should be assessed in every patient undergoing invasive intervention and must consider markers of disease severity, underlying coagulation incompetence, anaemia and surgical factors. The recognition that bleeding in this patient cohort is predominantly linked to mechanistic factors such as portal hypertension, rather than primary coagulopathy, has led to a paradigm shift in their perioperative management. Cognizant of their detrimental effect, the use of large volumes of fresh frozen plasma to correct derangements in SLTs has given way to more refined haemostatic management with specific factor concentrates guided by VETs, coupled with measures to minimize portal venous pressure and meticulous surgical hemostasis. PMID- 29027775 TI - Tactics for reducing opioids consumption for bariatric surgery. PMID- 29027776 TI - Lung ultrasonography and echocardiography in the Intensive Care Unit: a combined and practical approach. AB - This article describes some practical applications of critical care ultrasonography that are of interest to the frontline intensivist. Instead of presenting a standard state of the art review article, we present 3 typical clinical cases where combined echocardiography, lung ultrasonography, and other ultrasonography techniques were helpful to the critical care team. The manuscript includes a variety figures and video clips that illustrate the utility of critical care ultrasonography in guiding diagnosis and management of the critically ill patient. PMID- 29027777 TI - Immobilization during anesthesia for vitrectomy using a laryngeal mask without neuromuscular blockade versus endotracheal intubation and neuromuscular blockade. AB - BACKGROUND: For intraocular surgery, most authors recommend general anesthesia including intubation and neuromuscular blockade to avoid complications by patient movements. However, anesthesia using a laryngeal mask and avoidance of muscle relaxants is common clinical practice. Purpose of this prospective observational study was to compare the incidence of eye movement and deviation of the eye axis during general anesthesia adjusted to minimal alveolar concentration (MAC) for pars plana-vitrectomy (PPV) using a laryngeal mask without neuromuscular blockade (LM) versus endotracheal intubation and neuromuscular blockade (INT). METHODS: The patients (N.=148) who underwent PPV for vitreoretinal disorders received MAC adjusted general anesthesia by volatile anesthetics. Seventy-four patients were subjected to LM and 74 to INT. In both groups the patient's lungs were mechanically ventilated without allowing spontaneous ventilation. Eye movements and upward deviations were judged and documented during surgery. Postoperatively quality of immobilization was assessed by a standardized questionnaire. RESULTS: Intraoperative movements were not observed in either group. Upward eye deviation was observed in nine (12%) patients in the LM group, but not in patients in the INT group (0%; P=0.003). The standardized questionnaire revealed no clinically relevant difference in quality of immobilization between groups, especially eye deviations did not lead to any relevant surgical complications or difficulties. CONCLUSIONS: For PPV, MAC adjusted balanced anesthesia using a laryngeal mask without neuromuscular blockade was associated with more, but clinically irrelevant upward eye deviations and may be an alternative to intubation with neuromuscular blockade. However, adequate depth of anesthesia must be assured to avoid unwanted injuries during surgery. PMID- 29027778 TI - Automated ventilation: a progress or just another way to do the same? PMID- 29027779 TI - Donor lung management. PMID- 29027780 TI - Postoperative confusion. PMID- 29027781 TI - A smart aid to videolaryngoscopy. PMID- 29027782 TI - Improved Performances of LiNi0.8Co0.15Al0.05O2 Material Employing NaAlO2 as a New Aluminum Source. AB - To prepare a high-performance LiNi0.8Co0.15Al0.05O2 material (LNCA) for Li-ion batteries, a new aluminum source, NaAlO2, is employed in the coprecipitation step for the first time, and the effect of aluminum sources on the performances is systematically investigated. Different from the traditional preparation process using Al(NO3)3 as the aluminum source, the preparation process of the Ni0.8Co0.15Al0.05(OH)2.05 precursor from NaAlO2 is a hydrolysis process, during which the fast precipitation of Al3+ and the formation of a flocculent precipitate can be effectively avoided. As expected, stoichiometric LNCA with uniform element distribution, low cation mixing and well-ordered layered structure is obtained from NaAlO2, which is designed as LNCA-NaAlO2. The characterization and electrochemical measurements show that LNCA-NaAlO2 exhibits significantly improved performances (such as tap density, initial discharge capacity and volumetric energy density, rate performance, cycle performance, electrochemical stability, microstructure stability, and storage stability) compared to the performances of those prepared from Al(NO3)3 (LNCA-Al(NO3)3), indicating that it is an effective strategy to preparing high-performance LNCA employing NaAlO2 as the aluminum source. PMID- 29027783 TI - Antibacterial Structural Color Hydrogels. AB - Structural color hydrogels with lasting survivability are important for many applications, but they still lack anti-biodegradation capability. Thus, we herein present novel antibacterial structural color hydrogels by simply integrating silver nanoparticles (AgNPs) in situ into the hydrogel materials. Because the integrated AgNPs possessed wide and excellent antibacterial abilities, the structural color hydrogels could prevent bacterial adhesion, avoid hydrogel damage, and maintain their vivid structural colors during their application and storage. It was demonstrated that the AgNP-tagged poly(N-isopropylacrylamide) structural color hydrogels could retain their original thermal-responsive color transition even when the AgNP-free hydrogels were degraded by bacteria and that the AgNP-integrated self-healing structural color protein hydrogels could save their self-repairing property instead of being degraded by bacteria. These features indicated that the antibacterial structural color hydrogels could be amenable to a variety of practical biomedical applications. PMID- 29027784 TI - Mixed-Metal-Organic Framework Self-Template Synthesis of Porous Hybrid Oxyphosphides for Efficient Oxygen Evolution Reaction. AB - Developing an efficient, stable yet cost-effective electrocatalyst is the key link along the path to hydrogen fuels produced by water splitting. The current bottleneck in the water electrolysis technology is the sluggish oxygen-evolving reaction (OER) which is also central to the rechargeable metal-air batteries. Herein, we report a promising mixed-metal-organic framework (MMOF) self-template strategy to synthesize CoFe hybrid oxyphosphides with highly porous morphology. Aided by the porous hybrid bulk structure beneficial to fast-ion diffusion to abundant highly active sites, the as-synthesized Co3FePxO exhibited excellent electrocatalytic activity toward OER, with an overpotential of 291 mV at 10 mA cm 2 and a low Tafel slope of 85 mV dec-1. With the underpinnings of MMOF maintaining the structural rigidity and stability, the material also showed long life for OER without discernible activity decay. PMID- 29027785 TI - Chemically Cross-Linked MOF Membrane Generated from Imidazolium-Based Ionic Liquid-Decorated UiO-66 Type NMOF and Its Application toward CO2 Separation and Conversion. AB - Carbon dioxide capture and transformation are of great importance to make cuts in greenhouse gas emissions. Nanometal-organic frameworks (NMOFs) could serve as ideal fillers for polymer membranes owing to their structural diversity and regulable microenvironment of the nanocage. Herein, a bifunctional, robust, and chemically cross-linked NMOF-based membrane was successfully constructed by the postsynthetic polymerization of imidazolium-based ionic liquid (IL)-decorated UiO 66 type nanoparticles (NPs) and the isocyanate-terminated polyurethane oligomer under mild conditions. The IL-modified MOF-polymer membranes exhibit a highly selective adsorption for CO2 over N2 and CH4. In addition, the obtained membrane can also be a highly active heterogeneous catalyst for CO2 transformation by cycloaddition with epoxide under an ambient pressure. PMID- 29027786 TI - Hierarchical Porous Magnesium Oxide (Hr-MgO) Microspheres for Adsorption of an Organophosphate Pesticide: Kinetics, Isotherm, Thermodynamics, and DFT Studies. AB - In this study, hierarchical porous magnesium oxide (Hr-MgO) microspheres have been fabricated from a hydromagnesite precursor via a facile precipitation method followed by calcination. The Hr-MgO microspheres consist of several nanosheet building blocks that generate a flowerlike architecture. Chlorpyrifos (CPF), a persistent organic pollutant, has been chosen as a model organophosphate pesticide to determine the adsorptive capacities of the fabricated Hr-MgO. The equilibrium adsorption data fits well with the Langmuir isotherm model, showing a maximum adsorption capacity of 3974 mg g-1, which is the highest value to date. Both kinetic as well as thermodynamic parameters reveal the spontaneous, exothermic, and pseudo-second-order nature of the adsorption process due to chemisorption between the pesticide and the adsorbent. Density functional theory studies suggest the importance of hydroxylation on the MgO surface for the successful destructive adsorption, which takes place via the cleavage of S?P and Cl-C bonds resulting in the fragmentation of CPF, which is in good agreement with Fourier transform infrared and mass spectrometric studies. The present study shows the potential use of hierarchically structured porous MgO microspheres as an efficient adsorbent for the removal of CPF pollutant. PMID- 29027787 TI - Detection of T4 Polynucleotide Kinase via Allosteric Aptamer Probe Platform. AB - As a vital enzyme in DNA phosphorylation and restoration, T4 polynucleotide kinase (T4 PNK) has aroused great interest in recent years. Therefore, numerous strategies have been established for highly sensitive detection of T4 PNK based on diverse signal amplification techniques. However, they often need sophisticated design, a variety of auxiliary reagents and enzymes, or cumbersome manipulations. We have designed a new kind of allosteric aptamer probe (AAP) consisting of streptavidin (SA) aptamer and the complementary DNA (cDNA) for simple detection of T4 PNK without signal amplification and with minimized interference in complex biological samples. When the 5'-terminus of the cDNA is phosphorylated by T4 PNK, the cDNA is degraded by lambda exonuclease to release the fluorescein amidite (FAM)-labeled SA aptamer, which subsequently binds to streptavidin beads. The enhancement of the fluorescence signal on SA beads can be detected precisely and easily by a microscope or flow cytometer. Our method performs well in complex biological samples as a result of the enrichment of the signaling molecules on beads, as well as simple manipulations to discard the background interference and nonbinding molecules. Without signal amplification techniques, our AAP method not only avoids complicated manipulations but also decreases the time required. With the advantages of ease of operation, reliability, and robustness for T4 PNK detection in buffer as well as real biological samples, the AAP has great potential for clinical diagnostics, inhibitor screening, and drug discovery. PMID- 29027789 TI - Integrated Bacterial Identification and Antimicrobial Susceptibility Testing Using PCR and High-Resolution Melt. AB - Accurate and timely diagnostics are critical for managing bacterial infections. The current gold standard, culture-based diagnostics, can provide clinicians with comprehensive diagnostic information including bacterial identity and antimicrobial susceptibility, but they often require several days of turnaround time, which leads to compromised clinical outcome and promotes the spread of antibiotic resistance. Nucleic acid amplification tests such as PCR have significantly accelerated the detection of specific bacteria but generally lack the capacities for broad-based bacterial identification or antimicrobial susceptibility testing. Here, we report an integrated assay based on PCR and high resolution melt (HRM) for rapid diagnosis for bacterial infections. In our assay, we measure bacterial growth in the presence or absence of certain antibiotics with real-time quantitative PCR or digital PCR to determine antimicrobial susceptibility. In addition, we use HRM and a machine learning algorithm to identify bacterial species based on melt-curve profiles of the 16S rRNA gene in an automated fashion. As a demonstration, we correctly identified the bacterial species and their antimicrobial susceptibility profiles for multiple unknown samples in blinded tests within ~6.5 h. PMID- 29027790 TI - Microbial Fermentation of Organic Carbon Substrates Drives Rapid pH Neutralization and Element Removal in Bauxite Residue Leachate. AB - Globally, mineral processing activities produce an estimated 680 GL/yr of alkaline wastewater. Neutralizing pH and removing dissolved elements are the main goals of wastewater treatment prior to discharge. Here, we present the first study to explicitly evaluate the role of microbial communities in driving pH neutralization and element removal in alkaline wastewaters by fermentation of organic carbon, using bauxite residue leachate as a model system, and evaluate the effects of organic carbon complexity and microbial inoculum addition rates on the performance of these treatment systems at laboratory scale. Rates and extents of pH neutralization were higher in bioreactors fed with simpler organic carbon substrates (glucose and banana: 6 days to reach pH <= 8) than those fed with more complex organic carbon substrates (eucalyptus mulch: 15 days to reach pH <= 8; woodchips: equilibrium pH around 9). Concentrations of dissolved Al, As, B, Mo, Na, S, and V all significantly decreased after bioremediation. Increasing soil inoculant addition rate accelerated rates and extent of pH neutralization and element removal up to 0.1 wt %; further increases had little effect. Overall, glucose added at 1.8 wt % and soil inoculum added at 0.1 wt % provided the most effective minimal combination of carbon substrate and inoculum to drive pH neutralization and element removal. PMID- 29027792 TI - Multifunctional Cytochrome c: Learning New Tricks from an Old Dog. AB - Cytochrome c (cyt c) is a small soluble heme protein characterized by a relatively flexible structure, particularly in the ferric form, such that it is able to sample a broad conformational space. Depending on the specific conditions, interactions, and cellular localization, different conformations may be stabilized, which differ in structure, redox properties, binding affinities, and enzymatic activity. The primary function is electron shuttling in oxidative phosphorylation, and is exerted by the so-called native cyt c in the intermembrane mitochondrial space of healthy cells. Under pro-apoptotic conditions, however, cyt c gains cardiolipin peroxidase activity, translocates into the cytosol to engage in the intrinsic apoptotic pathway, and enters the nucleus where it impedes nucleosome assembly. Other reported functions include cytosolic redox sensing and involvement in the mitochondrial oxidative folding machinery. Moreover, post-translational modifications such as nitration, phosphorylation, and sulfoxidation of specific amino acids induce alternative conformations with differential properties, at least in vitro. Similar structural and functional alterations are elicited by biologically significant electric fields and by naturally occurring mutations of human cyt c that, along with mutations at the level of the maturation system, are associated with specific diseases. Here, we summarize current knowledge and recent advances in understanding the different structural, dynamic, and thermodynamic factors that regulate the primary electron transfer function, as well as alternative functions and conformations of cyt c. Finally, we present recent technological applications of this moonlighting protein. PMID- 29027794 TI - Artificial Metalloproteins for Binding and Stabilization of a Semiquinone Radical. AB - The interaction of a number of first-row transition-metal ions with a 2,2' bipyridyl alanine (bpyA) unit incorporated into the lactococcal multidrug resistance regulator (LmrR) scaffold is reported. The composition of the active site is shown to influence binding affinities. In the case of Fe(II), we demonstrate the need of additional ligating residues, in particular those containing carboxylate groups, in the vicinity of the binding site. Moreover, stabilization of di-tert-butylsemiquinone radical (DTB-SQ) in water was achieved by binding to the designed metalloproteins, which resulted in the radical being shielded from the aqueous environment. This allowed the first characterization of the radical semiquinone in water by resonance Raman spectroscopy. PMID- 29027793 TI - Pivotal Roles of Metal Oxides in the Formation of Environmentally Persistent Free Radicals. AB - Environmentally persistent free radicals (EPFRs) are emerging pollutants that can adversely affect human health. Although the pivotal roles of metal oxides in EPFR formation have been identified, few studies have investigated the influence of the metal oxide species, size, or concentration on the formation of EPFRs. In this study, EPFR formation from a polyaromatic hydrocarbon with chlorine and hydroxyl substituents (2,4-dichloro-1-naphthol) was investigated using electron paramagnetic resonance spectroscopy. The effect of the metal oxide on the EPFR species and its lifetime and yield were evaluated. The spectra obtained with catalysis by CuO, Al2O3, ZnO, and NiO were obviously different, indicating that different EPFRs formed. The abilities of the metal oxides to promote EPFR formation were in the order Al2O3 > ZnO > CuO > NiO, which were in accordance with the oxidizing strengths of the metal cations. A decay study showed that the generated radicals were persistent, with a maximum 1/e lifetime of 108 days on the surface of Al2O3. The radical yields were dependent on the concentration and particle size of the metal oxide. Metal oxide nanoparticles increased the EPFR concentrations more than micrometer-sized particles. PMID- 29027795 TI - Photochromic Heterocycle-Fused Thieno[3,2-b]phosphole Oxides as Visible Light Switches without Sacrificing Photoswitching Efficiency. AB - A series of novel photochromic thieno[3,2-b]phosphole oxides has been shown to demonstrate photochromism without the need for the use of high-energy ultraviolet (UV) light irradiation while maintaining promising photochromic properties such as excellent thermal irreversibility, robust fatigue resistance, and high photoswitching efficiency. Promising visible light-induced photochromic properties have been realized by the new molecular design, in which various pi systems have been incorporated into the weakly aromatic phosphole backbone instead of the conventional modification of the peripheral diaryl units that usually leads to a drastic reduction of the photochromic quantum yields (phiO->C and phiC->O < 0.01) or even a loss of the photochromic behavior. Excellent fatigue resistance has been observed for a representative compound with no apparent loss of photochromic reactivity over ten photochromic cycles by alternate irradiation with violet (ca. 410 nm) and green (ca. 500 nm) light with high photochromic quantum yields (phiO->C = 0.87 and phiC->O = 0.44), rendering it a new promising candidate as visible light photoswitches for various potential applications. PMID- 29027796 TI - Changing Single-Molecule Magnet Properties of a Windmill-Like Distorted Terbium(III) alpha-Butoxy-Substituted Phthalocyaninato Double-Decker Complex by Protonation/Deprotonation. AB - Synthesis, structures, and magnetic properties of alpha-butoxy-substituted phthalocyaninato double-decker complexes Tb(alpha-obPc)2 (1-) (alpha-obPc: dianion of 1,4,8,11,15,18,22,25-octa(n-butoxy)phthalocyaninato) with protonated (1H), deprotonated (1[HDBU]), and diprotonated forms (1H2+) are discussed. X-ray analysis was used to confirm the position of the proton in 1H, and it was revealed that the protonation induced asymmetric distortion in 1H. In contrast, 1[HDBU] was distorted in a highly symmetric windmill-like fashion. 1H is arranged in a slipped column array in the crystal packing, whereas 1[HDBU] is arranged in a one-dimensional fashion, in which the magnetic easy axes of 1[HDBU] lie along the same line. From direct-current (dc) magnetic measurements, ferromagnetic Tb Tb interactions occur in both 1H and 1[HDBU], and magnetic hysteresis was observed. However, the area of the magnetic hysteresis in 1[HDBU] is larger than that in 1H, meaning that magnetic relaxation time (tau) is longer in 1[HDBU]. In addition, the results of alternating-current magnetic measurements in a zero dc magnetic field indicate that tau of 1[HDBU] is longer as compared to 1H. In other words, protonation/deprotonation affects not only the molecular structures and crystal packing but also the single-molecule magnet properties. PMID- 29027797 TI - Phosphorus-Chalcogen Ring Expansion and Metal Coordination. AB - The reactivity of 4-membered (RPCh)2 rings (Ch = S, Se) that contain phosphorus in the +3 oxidation state is reported. These compounds undergo ring expansion to (RPCh)3 with the addition of a Lewis base. The 6-membered rings were found to be more stable than the 4-membered precursors, and the mechanism of their formation was investigated experimentally and by density functional theory calculations. The computational work identified two plausible mechanisms involving a phosphinidene chalcogenide intermediate, either as a free species or stabilized by a suitable base. Both the 4- and 6-membered rings were found to react with coinage metals, giving the same products: (RPCh)3 rings bound to the metal center from the phosphorus atom in tripodal fashion. PMID- 29027798 TI - Correction to Naphthoquinones of Sinningia reitzii and Anti inflammatory/Antinociceptive Activities of 8-Hydroxydehydrodunnione. PMID- 29027799 TI - Proton-Coupled O-Atom Transfer in the Oxidation of HSO3- by the Ruthenium Oxo Complex trans-[RuVI(TMC)(O)2]2+ (TMC = 1,4,8,11-Tetramethyl-1,4,8,11 tetraazacyclotetradecane). AB - We have previously reported that the oxidation of SO32- to SO42- by a trans dioxoruthenium(VI) complex, [RuVI(TMC)(O)2)]2+ (RuVI; TMC = 1,4,8,11-tetramethyl 1,4,8,11-tetraazcyclotetradecane) in aqueous solutions occurs via an O-atom transfer mechanism. In this work, we have reinvestigated the effects of the pH on the oxidation of SIV by RuVI in more detail in order to obtain kinetic data for the HSO3- pathway. The HSO3- pathway exhibits a deuterium isotope effect of 17.4, which indicates that O-H bond breaking occurs in the rate-limiting step. Density functional theory calculations have been performed that suggest that the oxidation of HSO3- by RuVI may occur via a concerted or stepwise proton-coupled O atom transfer mechanism. PMID- 29027800 TI - Chromophore Distortions in Photointermediates of Proteorhodopsin Visualized by Dynamic Nuclear Polarization-Enhanced Solid-State NMR. AB - Proteorhodopsin (PR) is the most abundant retinal protein on earth and functions as a light-driven proton pump. Despite extensive efforts, structural data for PR photointermediate states have not been obtained. On the basis of dynamic nuclear polarization (DNP)-enhanced solid-state NMR, we were able to analyze the retinal polyene chain between positions C10 and C15 as well as the Schiff base nitrogen in the ground state in comparison to light-induced, cryotrapped K- and M-states. A high M-state population could be achieved by preventing reprotonation of the Schiff base through a mutation of the primary proton donor (E108Q). Our data reveal unexpected large and alternating 13C chemical shift changes in the K-state propagating away from the Schiff base along the polyene chain. Furthermore, two different M-states have been observed reflecting the Schiff base reorientation after the deprotonation step. Our study provides novel insight into the photocycle of PR and also demonstrates the power of DNP-enhanced solid-state NMR to bridge the gap between functional and structural data and models. PMID- 29027801 TI - Palladium(0)-Catalyzed Carbonylative One-Pot Synthesis of N-Acylguanidines. AB - A convenient synthetic strategy toward N-acylguanidines via a sequential one-pot multicomponent carbonylation/amination reaction has been developed. The compounds were readily obtained via an N-cyanobenzamide intermediate formed from the Pd(0) catalyzed carbonylative coupling of cyanamide and aryl iodides or bromides. Subsequent amination with a large variety of amines provided the final N acylguanidines, with the overall formation of one C-C and two C-N bonds, in moderate to excellent yields. The substrate scope was found to be wide and the methodology was used to produce over 50 compounds, including 29 novel molecules. Furthermore, three separate nitrogen-containing heterocycles were prepared from the N-acylguanidines synthesized using the developed multicomponent, carbonylative method. PMID- 29027802 TI - Phosphonate-Stabilized Titanium-Oxo Clusters with Ferrocene Photosensitizer: Structures, Photophysical and Photoelectrochemical Properties, and DFT/TDDFT Calculations. AB - The metal-to-core charge transfer (MCCT) transition in sensitized titanium-oxo clusters is an important process for photoinduced electron injection in photovoltaic conversion. This process resembles most closely the Type II photoinjection in dye-sensitized solar cells. Herein we report the synthesis and photophysical and photoelectrochemical (PEC) properties of the phosphonate stabilized titanium-oxo clusters containing the ferrocenecarboxylate ligands. These ferrocene-containing clusters exhibit intense visible absorption extended up to 600 nm along with low optical band gaps of ~2.2 eV. The low-energy transitions of these clusters were systematically investigated by UV-vis spectroscopy and DFT/TDDFT calculations. The combined experimental and computational studies suggest that the ferrocenecarboxylate-substituted titanium oxo clusters form a donor-acceptor (D-A) system. The low-energy transition of these clusters primarily involves the MCCT from the iron center to TiO cluster core. The TiO core structure and phosphonate ligands both have great influence on the PEC properties of the clusters. This work provides valuable examples for the sensitized titanium-oxo clusters in which electron injection takes place via MCCT transition. PMID- 29027803 TI - Origin of Efficient Inverted Nonfullerene Organic Solar Cells: Enhancement of Charge Extraction and Suppression of Bimolecular Recombination Enabled by Augmented Internal Electric Field. AB - We report our effort to unravel the origin of efficient operation of nonfullerene organic solar cells (OSCs), based on a poly[4,8-bis(5-(2-ethylhexyl) thiophen-2 yl)benzo[1,2-b;4,5-b']dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3 fluorothieno[3,4-b]thiophene-)-2-carboxylate-2-6-diyl)](PTB7-Th):3,9-bis(2 methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl) dithieno[2,3-d:2',3'-d']-s-indaceno [1,2-b:5,6-b']dithiophene (ITIC) blend system. The effects of buildup of space charges, charge extraction, and bimolecular recombination processes on the performance and the stability of PTB7 Th:ITIC-based regular and reverse configuration OSCs are analyzed. It is found that the high-performing inverted PTB7-Th:ITIC OSCs benefit from the combined effects of (1) suppression of bimolecular recombination enabled by an augmented effective internal electric field and (2) improvement of charge extraction by avoiding the holes passing through ITIC-rich region, which would otherwise occur in a regular configuration cell. The inverted PTB7-Th:ITIC OSCs possess a significant improvement in the cell stability and a high power conversion efficiency of ~8.0%, which is >29% higher than that of an optimized regular configuration control cell (6.1%). PMID- 29027804 TI - Planar Polycyclic Oxaphosphoranes Incorporating a Benzophosphole Unit. AB - A facile method to synthesize quaternized benzophospholes on gram scale was reported, and the products were isolated by simple filtration. During this research, a series of sigma5-oxaphosphoranes incorporating polycyclic aromatic hydrocarbons (PAHs) were obtained. The grafting of alpha-phenolate groups on the phosphorus center enhances the coplanarity of the system. PMID- 29027806 TI - Clinical evaluation and treatment of phaeochromocytoma. AB - Phaeochromocytoma and extra adrenal paraganglioma are rare neuroendocrine tumours and have the potential to secrete adrenaline, noradrenaline and dopamine causing a myriad of clinical symptoms. Prompt diagnosis is essential for clinicians and requires a multidisciplinary specialist approach for the clinical and laboratory investigation, diagnosis, treatment and follow-up of patients. This paper is an integrated review of the clinical and laboratory evaluation and treatment of patients suspected to have phaeochromocytoma or paraganglioma, highlighting recent developments and best practices from recent published clinical guidelines. PMID- 29027805 TI - Near-Infrared Emissive Discrete Platinum(II) Metallacycles: Synthesis and Application in Ammonia Detection. AB - Two novel discrete organoplatinum(II) metallacycles are prepared by means of coordination-driven self-assembly of a 90 degrees organoplatinum(II) acceptor, cis-(PEt3)2Pt(OTf)2, with two donors, a pyridyl donor, 9,10-di(4 pyridylvinyl)anthracene, and one of two dicarboxylate ligands. Both metallacycles display aggregation-induced emission as well as solvatochromism. More interestingly, both metallacycles exhibit near-infrared fluorescent emission in the solid state and can be used to detect ammonia gas. PMID- 29027807 TI - Biochemistry of the menopause. AB - The life of a human female is characterized from teenage years by monthly menstruation which ceases (the menopause) typically between the age of 40 and 60 years. The potential for reproduction declines and ceases as the ovaries become depleted of follicles. A transition period in mid-life, for 2 to 10 years, when menstruation is less regular is called the perimenopause. The menopause is associated with a significant decline in plasma concentrations of sex hormones, an increase in the concentrations of the gonadotrophins and changes in other hormones such as the inhibins. These changes are superimposed with effects of aging, social and metabolic factors, daily activity and well-being. Although the menopause is entirely natural, in some cases ovarian failure can occur earlier than usual; this is pathological and warrants careful biochemical investigations to distinguish it from conditions causing infertility. Elderly females are affected by a range of clinical disorders including endocrine, cardiovascular, skeletal, urogenital tract and immunological systems, body mass, vasomotor tone, mood and sleep pattern. Reference intervals for many diagnostic biochemical tests for the menopause need to be used when interpreting results in clinical investigations for patient management. The standardization and harmonization of assays are being addressed. Many women now choose to develop their career before bearing children, and the health service has had to change services around this. This review does not cover screening for and tests during pregnancy. The review is timely since the population is aging and there will be more demand on healthcare services. PMID- 29027809 TI - Correction to: J Altern Complement Med 2016;22(12):1007-1012. DOI: 10.1089/acm.2016.0115. PMID- 29027808 TI - Measuring the attitudes of novice drivers with autism spectrum disorder as an indication of apprehensive driving: Going beyond basic abilities. AB - For some individuals with autism spectrum disorder, driving apprehension may interfere with the acquisition and application of driving privileges. The Driving Attitude Scale Parent-Report provides an indication of novice drivers' positive and negative attitudes toward driving. Responses were compared for parents of 66 autism spectrum disorder and 166 neuro-typical novice drivers. After the autism spectrum disorder drivers completed 3 months of driver training, 60 parents repeated the Driving Attitude Scale Parent-Report. Parents reported autism spectrum disorder drivers to have less positive and more negative attitudes toward driving than parents of neuro-typical drivers. Parents of autism spectrum disorder drivers who received driving training in a safe/low-threat virtual reality driving simulator demonstrated a significant increase in positive attitudes and reduction in negative attitudes, compared to parents of autism spectrum disorder drivers undergoing routine driver training. The reports of parents of autism spectrum disorder drivers suggest potential problems with learning to drive that can go beyond general abilities and include driving apprehension. PMID- 29027810 TI - Electrocardiographic characteristics associated with in-hospital outcome in patients with left main acute coronary syndrome: For contriving a new risk stratification score. AB - AIM: The aim of this study was to evaluate electrocardiographic characteristics associated with in-hospital prognosis in patients with left main acute coronary syndrome. METHODS AND RESULTS: A total of 89 left main acute coronary syndrome subjects were selected from 3357 consecutive acute coronary syndrome patients (2.7%). Patients of this study were divided into two groups; those who survived and those who died. Patients' characteristics and electrocardiogram on admission were then retrospectively analyzed between the two groups. In-hospital mortality was 28.1%. The prevalence and degree of ST-segment elevation at lead aVL were significantly higher in the deceased group than in the survival group ( p<0.001). However, those at lead aVR did not show significant differences between the two groups. Moreover, the width of the QRS-complex was significantly wider (lead V3; p<0.001), and the level of five minus the absolute value of five minus number of ST-segment elevation (5-|5-ST|; due to the highest in-hospital mortality (70%) in the five-lead ST-segment elevation group) was significantly larger in the deceased group than in the survival group ( p<0.001). The odds ratios that predicted in-hospital cardiac death were 1.03 for width of the QRS-complex at lead V3 (95% confidence interval (CI); 1.01-1.06; p=0.003), 1.74 for 5-|5-ST| (95% CI; 1.03-3.00; p=0.040), and 1.44 for ST-segment elevation at lead aVL (95% CI; 0.93-2.23; p=0.100). CONCLUSIONS: ST-segment elevation at lead aVL rather than aVR, width of the QRS-complex at lead V3 and number of ST-segment elevation were the prognostic predictors for in-hospital mortality in patients with left main acute coronary syndrome. Electrocardiographic characteristics should be assessed in addition to the established risk score in patients with left main acute coronary syndrome. PMID- 29027811 TI - Prevention of human papillomavirus (HPV)-related tumors in people living with human immunodeficiency virus (HIV). AB - INTRODUCTION: In comparison to their HIV-negative counterparts, people living with HIV (PLWH) have a higher prevalence of human papillomavirus (HPV) infection in various anatomical sites coupled with increased HPV persistence, higher risk of HPV-related tumors, and faster disease progression. Areas covered: Gender neutral prevention strategies for HPV-related cancers in PLWH discussed: ABC approach, HPV vaccination, antiretroviral treatment (ART), anal cancer screening, and smoking cessation. Gender specific strategies: cervical cancer screening reduces the incidence and mortality of cervical cancer and circumcision might reduce the risk of HPV infections in men. Expert commentary: HPV-related cancer incidence has not declined (e.g. cervical cancer) and has even increased (e.g. anal cancer) in the ART era, demanding an effective HPV prevention strategy. HPV vaccination should be introduced into national prevention programs worldwide immediately because current prophylactic vaccines are safe, tolerable, and immunogenic in PLWH. HPV vaccine efficacy trials in PLWH are essential to determine the most appropriate immunization schedule. The population most at risk of anal cancer is HIV-positive men who have sex with men, who are not protected by herd immunity if only the female population is vaccinated. Unvaccinated PLWH need enhanced surveillance for early detection of HPV-related cancers and their precursors. PMID- 29027813 TI - Final chapter, From India to the Planet Mars: A Study of a Case of Somnambulism with Glossolalia, by Theodore Flournoy (1900). AB - Among the many attempts to explain mediumship psychologically at the turn of the century were the efforts of Swiss psychologist Theodore Flournoy (1854-1920). In his well-known book Des Indes a la Planete Mars (1900), translated as From India to the Planet Mars (1900), Flournoy analysed the mediumistic productions of medium Helene Smith (1861-1929), consisting of accounts of previous lives in France and in India, and material about planet Mars. Flournoy explained the phenomena as a function of cryptomnesia, suggestive influences, and subconscious creativity, analyses that influenced both psychology and psychical research. The purpose of this Classic Text is to reprint the conclusion of Flournoy's study, whose ideas were developed in the context of psychological attention to mediumship and secondary personalities. PMID- 29027812 TI - Use of a Novel, Remotely Connected Diabetes Management System Is Associated with Increased Treatment Satisfaction, Reduced Diabetes Distress, and Improved Glycemic Control in Individuals with Insulin-Treated Diabetes: First Results from the Personal Diabetes Management Study. AB - BACKGROUND: The ability to automatically transfer data to clinicians and receive timely guidance in therapy adjustments through remote and in-office consults can positively impact patients' perceptions about quality of care, which is positively associated with clinical outcomes. We assessed the impact of using the Accu-Chek Connect diabetes management system on treatment satisfaction, diabetes distress, and glycemic control in adults with type 1 diabetes and insulin-treated type 2 diabetes. SUBJECTS AND METHODS: This 6-month, prospective, multicenter, single-arm study assessed the impact of using the system on treatment satisfaction and glycemic control among 87 adults with insulin-treated diabetes (multiple daily insulin injections and basal only), with 8.8% +/- 1.6% glycated hemoglobin (HbA1c) at baseline. The Diabetes Treatment Satisfaction Questionnaire status (DTSQs) and Diabetes Distress Scale (DDS) were administered at baseline, and the Diabetes Treatment Satisfaction Questionnaire-change (DTSQc) and DDS at 6 months. Changes in HbA1c, average blood glucose (BG), and other metrics were also assessed. RESULTS: Improvements in DTSQc scores were observed at 6 months with a total mean (standard deviation) score of 14.3 +/- 5.1. Significant reductions in total mean DDS scores from baseline to 6 months were also observed, from 2.0 +/- 0.8 to 1.7 +/- 0.7, P < 0.0001. A significant reduction in regimen-related distress was notable, from "moderate distress" (2.4 +/- 1.0) to "not distressed" (1.9 +/- 0.9), P < 0.0001). Significant reductions in mean HbA1c (-0.9 +/- 1.6, P < 0.0001) and mean BG (-24.8 +/- 50.8, P < 0.0001) were observed. CONCLUSIONS: Use of the Accu-Chek Connect diabetes management system is associated with increased treatment satisfaction and improved glycemic control among individuals with insulin-treated diabetes. NCT02600845 ( www.clinicaltrials.gov ). PMID- 29027814 TI - Short-chain fatty acids: a link between prebiotics and microbiota in chronic kidney disease. AB - Under physiologic conditions, the human gut microbiota performs several activities essential to the body health. In contrast, their imbalances exacerbate some actions which can promote a cascade of metabolic abnormalities, and vice versa. Numerous diseases, including chronic kidney disease, are associated with gut microbiota imbalance, and among several strategies to re-establish gut symbiosis, prebiotics seem to represent an effective nonpharmacological approach. Prebiotics fermentation by gut microbiota produce short-chain fatty acids, which improve the gut barrier integrity and function, and modulate the glucose and lipid metabolism as well as the inflammatory response and immune system. Therefore, this literature review intends to discuss the beneficial effects of prebiotics in human health through short-chain fatty acids production, with a particular interest on chronic kidney disease. PMID- 29027815 TI - l-Carnosine As an Adjunctive Therapy to Risperidone in Children with Autistic Disorder: A Randomized, Double-Blind, Placebo-Controlled Trial. AB - OBJECTIVES: This study aimed at investigating the efficacy and tolerability of l carnosine as an add-on to risperidone in the management of children with autism. METHODS: This was a 10-week, randomized, double-blind, placebo-controlled study. Seventy drug-free children aged 4-12 years old with a diagnosis of autism spectrum disorder (ASD), according to the Diagnostic and Statistical Manual of Mental Disorders, fifth edition. (DSM-5) who had an Aberrant Behavior Checklist Community (ABC-C) scale irritability subscale score of >=12, entered the study. The patients were randomly assigned to l-carnosine (800 mg/day in 2 divided doses) or placebo in addition to risperidone titrated up to 2 mg/day (based on body weight) for 10 weeks. The children were assessed by using ABC-C at baseline and weeks 5 and 10 post-baseline. The primary outcome measure was the mean change in the ABC-C irritability subscale score, and other subscale scores were defined as secondary outcomes. RESULTS: Using the general linear model repeated measures, no significant effect was observed for time * treatment interaction on the irritability subscale scores. However, significant effect was detected on the hyperactivity/noncompliance subscale [F (1.62, 64.96) = 3.53, p-value = 0.044]. No significant improvements were obtained on the lethargy/social withdrawal, stereotypic behavior, and inappropriate speech subscale scores. Significantly greater score reduction in the hyperactivity/noncompliance subscale occurred in the l-carnosine group compared with the placebo group at the end of the trial. Extrapyramidal Symptom Rating Scale Scores and its changes did not differ between the two groups. The frequency of other side effects was not significantly different between the two groups. CONCLUSIONS: Although no significant difference was detected on the irritability subscale scores, l-carnosine add-on can improve hyperactivity/noncompliance subscales of the ABC-C rating scale in patients with ASD. PMID- 29027816 TI - A comparison of the genetic and clinical risk factors for arterial hypertension between indigenous and non-indigenous people of the Shoria Mountain Region. AB - BACKGROUND: This study investigated the non-genetic and genetic risk factors for arterial hypertension (AH) in two ethnic groups living in the Mountain Shoria region: Shors and non-indigenous people. METHODS: Clinical and epidemiological study of compactly living population in the remote areas of the Mountain Shoria (Orton, Ust-Kabyrza, Sheregesh settlements, Kemerovo region). 1178 residents of these settlements were surveyed with the help of continuous sampling method; the sample consisted of adults (18 years and older). RESULTS: The prevalence of AH was lower in Shors (39.9% vs. 46.1%), mainly due to differences between men from the different groups: 33.2% vs. 45.8%. The percentage of people with AH, overweight, and obesity (including transabdominal obesity) in the different age groups did not differ between ethnicities. We identified statistically significant differences in the prevalence of hypertension according the two ethic groups according to age, body weight, and abdominal obesity. I/D ACE and ADRA2B polymorphisms were associated with AH. In DD ACE and DD ADRA2B carriers, there were fewer hypertensive patients in Shors than in non-indigenous people: 40.6% vs. 58.6% and 38.3% vs. 64.0%, respectively. In DD ACE carriers, more Shors had AH (60.0% vs. 37.1%). CONCLUSION: Among Shors, the following factors increased AH risk: female sex, age, hypercholesterolemia, hyperbetacholesterinemia, hypertriglyceridemia, obesity (including transabdominal obesity), glucose intolerance, and the DD ACE, CT MTHFR, and AA ADRB1 genotypes; among the non indigenous population, the main factors were age, hypercholesterolemia, hyperbetacholesterinemia, hypoalfacholesterinemia, hypertriglyceridemia, obesity (including transabdominal obesity), and ID ACE genotype. PMID- 29027817 TI - Oral Supplementation of Parturient Mothers with Vitamin D and Its Effect on 25OHD Status of Exclusively Breastfed Infants at 6 Months of Age: A Double-Blind Randomized Placebo Controlled Trial. AB - BACKGROUND: Exclusively breastfed infants are at increased risk of vitamin D deficiency and many lactating mothers have been found deficient in 25OHD stores. OBJECTIVE: To compare serum vitamin D levels in exclusively breastfed infants at 6 months of age with or without oral supplementation of 600,000 IU of vitamin D3 to mothers in early postpartum period. METHODS: Exclusively breastfeeding term parturient mothers were randomized 24-48 hours following delivery to receive either 600,000 IU of vitamin D3 (Cholecalciferol) over 10 days in a dose of 60,000 IU/day or placebo. 25OHD levels were measured by Radio Immuno Assay method at recruitment and after 6 months in all mothers and their infants. Urinary calcium and creatinine ratio was measured to monitor adverse effects of vitamin D3 in both mothers and infants at 14 weeks and 6 months of age. X-ray of both wrists in anteroposterior view and serum alkaline phosphatase of infants were done in both groups at 6 months of age to look for evidence of rickets. RESULTS: Maternal profile was similar in intervention (A) and control (B) groups. Mothers' serum 25OHD levels at recruitment were also similar being 16.2 +/- 9.3 ng/mL in group A and 14.1 +/- 7.1 ng/mL in group B. After 6 months, 25OHD levels were 40.3 +/- 21.6 and 22.9 +/- 20.1 ng/mL in group A and group B mothers (p <= 0.00), respectively. The serum 25OHD levels in cord blood were 9.9 +/- 5.7 and 8.9 +/- 5.1 ng/mL, respectively, in infants born to mothers in intervention and control groups (p = 0.433). At 6 months of age, the serum 25OHD levels significantly (p < 0.00) raised to 29.1 +/- 14.6 ng/mL in infants of group A compared to those of group B (15.7 +/- 17.7 ng/mL). Four infants developed radiological rickets at 6 months of age, two infants each in intervention group and study group. As against 10 infants in the control group (16.94%), no infant in the study group had biochemical rickets. Urinary calcium and creatinine ratio in mothers and infants at 14 weeks and 6 months of age in both intervention and study group was within normal limits, indicating there was no adverse effects of oral administration of 600,000 IU of vitamin D3. CONCLUSION: Serum 25OHD levels of exclusively breastfed infants significantly rise at 6 months of age when their mothers are orally supplemented with 60,000 IU of vitamin D3 daily for 10 days in the early postpartum period in comparison to infants of vitamin D3 unsupplemented mothers. PMID- 29027818 TI - Effects of nesfatin-1 on atrial contractility and thoracic aorta reactivity in male rats. AB - BACKGROUND: This study aimed to examine the effects of nesfatin-1 on thoracic aorta vasoreactivity and to investigate the inotropic and chronotropic effects of nesfatin-1 on the spontaneous contractions of the isolated rat atria. METHODS: Isolated right atria and thoracic aorta were used in organ baths. The reactivity of the thoracic aorta was evaluated by potassium chloride (KCl), phenylephrine (Phe), acetylcholine (ACh), and sodium nitroprusside (SNP). The effects of nesfatin-1 on the spontaneous contractions of the rat atria were also examined. RESULTS: Nesfatin-1 (0.1-100 ng/ml) produced a concentration-dependent relaxation response in rat thoracic aorta. The relaxant responses to nesfatin-1 were inhibited by the removal of endothelium, NO synthase blocker N-nitro-L-arginine methyl ester (L-NAME, 10-4 M), and soluble guanylate cyclase inhibitor 1H [1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ, 10-5 M). Nesfatin-1 (10 ng/ml, 30 min) increased the relaxation responses to either ACh or SNP, and the contractile response to both Phe and KCl did not significantly change in the arteries that were incubated with nesfatin-1 compared with the controls. The thoracic aorta contractions induced by the stepwise addition of Ca2+ to a high KCl solution with no Ca2+ were not significantly changed by nesfatin-1. Under calcium-free conditions, the contractions of the thoracic aorta rings incubated with nesfatin 1 in response to Phe were not significantly lower than those of the rings from the control rats. Nesfatin-1 showed positive inotropic and chronotropic effects on rat atria. CONCLUSION: Nesfatin-1 significantly changed the vascular responsiveness in rat thoracic aorta and produced positive inotropic and chronotropic effects on rat atria. PMID- 29027819 TI - Can phage therapy solve the problem of recalcitrant chronic rhinosinusitis? AB - Chronic rhinosinusitis (CRS) affects 5-15% of the global population. In some patients, the infectious exacerbations of the disease are recalcitrant to medical treatment and surgery. These cases are probably associated with the presence of bacterial biofilms. Bacteriophage (phage) therapy seems to be a promising antibiofilm strategy. The efficacy of phage therapy in sinonasal infections has been demonstrated both in vitro and in animal models. In the past, phage preparations were also administered to humans with CRS with favorable outcomes and no significant side effects. Very recently, the safety and efficacy of phage therapy in otolaryngological infections has been demonstrated in pioneer Phase I/II clinical trials. This review addresses the potential of phage therapy to treat CRS. We also discuss issues that require further research. PMID- 29027820 TI - Using Cost-Effectiveness Analysis to Quantify the Value of Genomic-Based Diagnostic Tests: Recommendations for Practice and Research. AB - AIMS: New sequencing technologies allow increased opportunities to use genomic based diagnostic tests (genomic tests) in routine clinical practice, which will impact healthcare budgets and patients' outcomes. This article aims to generate a list of recommendations on how the principles and methods of cost-effectiveness analysis (CEA) can be used to quantify the costs and benefits of genomic tests. METHODS: A systematic literature search identified publications describing the use of CEA to evaluate genomic tests. Data were extracted as key concepts to produce a thematic list of previously described challenges and solutions to using CEA to evaluate genomic tests. Defining features of evaluating genomic tests were categorized into a list of key recommendations for applying methods in practice and for research needs. RESULTS: Features producing challenges in the implementation of CEA to evaluate genomic tests were as follows: the ability of the tests to diagnose multiple disorders; potential consequences for future generations suggesting an infinite time horizon; and the potential need to consider nonhealth benefits. CONCLUSIONS: CEA was identified as an appropriate evaluative framework for genomic tests, although standard methods may need modification and important method research questions remain. Key recommendations suggest a need for research to reflect: sharing genomic information across generations; genomic tests for multiple disorders; and health and nonhealth benefits. PMID- 29027821 TI - It is dopey to stop giving dopamine to hospitalized patients with Parkinson's disease. PMID- 29027822 TI - Mucosa-associated lymphoid tissue lymphoma with intraocular and orbital involvement: case presentation and review of the literature. AB - Primary ocular lymphomas are typically confined to either the eye or the orbit. Rarely, in immune-competent patients, lymphomas affect both the eye and the orbit simultaneously. Mucosa-associated lymphoid tissue (MALT) lymphomas are the most common ocular lymphomas. They usually present primarily in the orbit but sometimes can present primarily in intraocular tissue. MALT lymphomas that occur initially in the uvea can sometimes spread to the adjacent orbit. We report a case of progressively enlarging MALT lymphoma in a 62-year-old immune-competent patient causing a severe mass effect in the orbit and simultaneously presenting with intraocular involvement. There was radiographic evidence of lymphoma confined to the orbit with intraocular involvement. The simultaneous presentation makes it difficult to determine if the lymphoma initially presented in the orbit or intraocular tissue, although the orbital component was more impressive. The case also includes a literature review of simultaneous orbital and intraocular MALT lymphomas. The patient responded to systemic chemotherapy with regression in size of the lymphoma, relief of the mass effect seen in the orbit, and the regression of the intraocular involvement. PMID- 29027823 TI - Structural and biological diversity of natural p-terphenyls. AB - p-Terphenyls consisting of a C-18 tricyclic or polycyclic C-18 aromatic skeleton, have diverse structures because of the variation of the middle ring and the connections between the rings, and to the main skeleton. p-Terphenyls have recently been found to exhibit various biological activities such as cytotoxic, alpha-glucosidase inhibitory, antioxidant, and antimicrobial activity. In this review, we briefly summarized the structural varieties, biosyntheses, and bioactivities of natural p-terphenyl derivatives referring to the recent 10 years' publications. PMID- 29027824 TI - A computable phenotype for asthma case identification in adult and pediatric patients: External validation in the Chicago Area Patient-Outcomes Research Network (CAPriCORN). AB - OBJECTIVE: Comprehensive, rapid, and accurate identification of patients with asthma for clinical care and engagement in research efforts is needed. The original development and validation of a computable phenotype for asthma case identification occurred at a single institution in Chicago and demonstrated excellent test characteristics. However, its application in a diverse payer mix, across different health systems and multiple electronic health record vendors, and in both children and adults was not examined. The objective of this study is to externally validate the computable phenotype across diverse Chicago institutions to accurately identify pediatric and adult patients with asthma. METHODS: A cohort of 900 asthma and control patients was identified from the electronic health record between January 1, 2012 and November 30, 2014. Two physicians at each site independently reviewed the patient chart to annotate cases. RESULTS: The inter-observer reliability between the physician reviewers had a kappa-coefficient of 0.95 (95% CI 0.93-0.97). The accuracy, sensitivity, specificity, negative predictive value, and positive predictive value of the computable phenotype were all above 94% in the full cohort. CONCLUSIONS: The excellent positive and negative predictive values in this multi-center external validation study establish a useful tool to identify asthma cases in in the electronic health record for research and care. This computable phenotype could be used in large-scale comparative-effectiveness trials. PMID- 29027825 TI - Cost-effectiveness of carfilzomib plus dexamethasone compared with bortezomib plus dexamethasone for patients with relapsed or refractory multiple myeloma in the United States. AB - BACKGROUND: We assessed the economic value of carfilzomib 56 mg/m2 and dexamethasone (Kd56) vs. bortezomib and dexamethasone (Vd) for relapsed/refractory multiple myeloma (R/RMM) using ENDEAVOR trial results. METHODS: Cost-effectiveness of Kd56 vs. Vd was assessed using a partitioned survival model by estimating progression-free survival, overall survival, and direct costs over a lifetime horizon. Surveillance Epidemiology and End Results (SEER) survival data were extrapolated after matching registry and ENDEAVOR patients. Utilities were sourced from the literature and mapped from patient reported quality of life in ENDEAVOR to estimate quality-adjusted life-years (QALYs) from life-years (LYs). RESULTS: The model predicted an average gain of 1.66 LYs and 1.50 QALYs with Kd56 vs. Vd, and lifetime additional costs of $182,699, resulting in an incremental cost-effectiveness ratio (ICER) of $121,828/QALY gained. The ICER was $114,793/QALY in patients with 1 prior treatment; $99,263/QALY in those not transplanted, and <$150,000/QALY up to an 85% discount in bortezomib price. CONCLUSIONS: Kd56 is cost-effective for patients with R/RMM at a willingness-to-pay threshold of $150,000/QALY. Trial data in the model may limit generalizability; however, SEER registry data mitigates this challenge. Kd56 provides additional value in key subgroups, and remains cost-effective after steep comparator discounts. PMID- 29027826 TI - Dietary advanced glycated end-products and medicines influence the expression of SIRT1 and DDOST in peripheral mononuclear cells from long-term type 1 diabetes patients. AB - Quantitative polymerase chain reaction was employed to quantify expression of two genes coding for advanced glycation end-product receptors [RAGE ( AGER) and AGER1 ( DDOST)] and of the gene coding the deacetylase SIRT1 ( SIRT1) in peripheral blood mononuclear cells from type 1 diabetes patients without [Group A, n = 35; 28.5 (24-39) years old; median (interquartile interval)] or with at least one microvascular complication [Group B, n = 117; 34.5 (30-42) years old]; 31 healthy controls were also included. In a subgroup of 48 patients, daily advanced glycation end-products intake before blood collection was assessed. Lower expression of DDOST was found in patients than in controls after adjustment for sex, age, use of statins, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers. Higher expressions of AGER, DDOST and SIRT1 were observed in Group A. Stratifying by complications, AGER and DDOST expressions were higher in those without retinopathy and without diabetic kidney disease, respectively, compared to patients with these complications. Patients using statins or angiotensin receptor blockers presented higher expression of DDOST. Expression of SIRT1 was higher in patients consuming >=12,872 KU daily of advanced glycation end-products. Although AGER, DDOST and SIRT1 are differently expressed in peripheral blood mononuclear cells from type 1 diabetes patients with and without microvascular complications, they are also influenced by dietary advanced glycation end-products and by statins and angiotensin receptor blockers. PMID- 29027828 TI - Folate-decorated and NIR-activated nanoparticles based on platinum(IV) prodrugs for targeted therapy of ovarian cancer. AB - Platinum-based drugs are used to treat a variety of cancers but have many side effects such as nephrotoxicity and neurotoxicity. A folate-decorated nanoparticles system with a good drug payload can selectively deliver drugs into folate receptor (FR)-overexpressing cancer cells to prevent the shortcomings of platinum-based chemotherapy. Here, folate-decorated and near-infrared (NIR) laser activated nanoparticles (abbreviated as PtIV-FINPs) were prepared via ultrasonic self-assembling of platinum(IV) prodrug c,c,t-Pt(NH3)2Cl2(OOCCH2CH2COOH)2, folic acid (FA)-functionalized lipid DSPE-PEG-FA and NIR fluorescent dye indocyanine green (ICG). The obtained PtIV-FINPs had almost spherical shape with a mean diameter about 100 nm. In vitro cellular uptake, cytotoxicity assays revealed that upon NIR irradiation, PtIV-FINPs further enhanced cellular uptake and generated higher cytotoxicity against human ovarian carcinoma SKOV3 cells than non-targeted or non-NIR activated nanoparticles. Thus, the multifunctional nanoparticles have potential to be developed as an attractive drug delivery system for effective chemotherapy against FR-overexpressing cells. PMID- 29027827 TI - Triggering receptor expressed on myeloid cells in the pathogenesis of periodontitis: potential novel treatment strategies. AB - INTRODUCTION: Periodontal diseases are polymicrobial inflammatory disorders of the tissue, ligament, and bone structures supporting teeth. Periodontitis (inflammation with corresponding loss of attachment) affects 40-50% of adults. Recently, members of the Triggering Receptor on Myeloid Cell (TREM) family have been studied to determine their relationship to these diseases. Areas covered: TREM-1 is a receptor expressed on the surface of PMNs, monocytes, macrophages, dendritic cells, vascular smooth muscle cells, and keratinocytes upregulated in the presence of periodontal inflammation. TREM-1 expression can be upregulated by oral bacterium Porphyromonas gingivalis that can be abrogated by a sub antimicrobial dose of doxycycline. When cleaved from the cell surface, a soluble form of TREM-1 (sTREM-1) can be used as a biomarker of inflammation and might also provide a link between oral and systemic inflammation. While less understood, TREM-2 has a role in osteoclastogenesis which could contribute to the alveolar bone destruction seen in more advanced periodontitis. Expert commentary: Additional studies to simulate biofilm microenvironment in TREM research are warranted. Longitudinal studies determining TREM-1, sTREM-1, and TREM-2 levels in tissues over time and progression of periodontal diseases would provide valuable information in the role of TREM receptors as indicators of or contributors to the disease process. PMID- 29027829 TI - Mental health, pain symptoms and systemic comorbidities in women with endometriosis: a cross-sectional study. AB - INTRODUCTION: Endometriosis is a gynecological disease with a severe impact on quality of life. The aim of this study is to assess mental health status in a group of women with endometriosis, investigating their clinical history, pain symptoms and systemic comorbidities. METHODS: An observational cross-sectional study was performed on a group of Italian Caucasian women with endometriosis (n = 134). All patients filled the 'Patient Health Questionnaire' (PHQ), a self administered screening tool for mental health disorders. The characteristics of endometriosis, pain symptoms and their severity, the presence and types of comorbid systemic disorders were added into the same survey. RESULTS: According to PHQ algorithms, 59% of patients were affected by at least one psychiatric disorder, with a significant correlation with pain symptoms (p = 0.0026). Patients with severe pain showed a higher incidence of multiple psychiatric disorders (p = 0.026) and somatoform disorder than those with mild pain (p = 0.0009). There was no correlation between the presence of psychiatric disorders and age, BMI, parity, infertility, need for surgery, number of intervention, localization of endometriotic lesions and systemic comorbidities. DISCUSSION: Women with endometriosis showed a high frequency of PHQ results positive for psychiatric disorders, with a significant association with pain severity. PMID- 29027830 TI - Occurrence, types, properties and interactions of phenolic compounds with other food constituents in oil-bearing plants. AB - Phenolic phytochemicals have become of interest due to their therapeutic potential, particularly with regards to their anti-cancer, anti-inflammatory, hypolipidemic, and hypoglycemic properties. An evolving area of research involving phenolics in foods and their products pertains to the functional, biological, and nutritional consequences resulting from the binding between certain phenolic compounds and the macronutrient and micronutrient constituents of foods. The goal of this review is to provide a summary of studies investigating endogenous phenolic interactions with major components in food systems, including carbohydrates, proteins, lipids, minerals and vitamins, with a focus on the phenolic compounds and nutrients in oil-bearing plants. Another major objective is to provide a comprehensive overview of the chemical nature of phenolic interactions with food constituents that could affect the quality, nutritional and functional properties of foods. Such information can assist in the discovery and optimization of specific phenolic complexes in plant-based foods that could be utilized towards various applications in the food, nutraceutical and pharmaceutical industries. PMID- 29027831 TI - Evaluation of brain targeting in rats of Salvianolic acid B nasal delivery by the microdialysis technique. AB - The purpose of this study was to investigate the biodistribution of Salvianolic acid B in rats blood and brain after intranasal administration and explore its feasibility and evaluate its brain targeting effect. The concentration of Salvianolic acid B in blood and brain following nasal administration (32 mgckg-1) was measured combining with microdialysis sampling and liquid chromatograph-mass spectrometer/MS detection technology. After the microdialysis samples were corrected with in vivo recoveries, the pharmacokinetic parameters were obtained by using non-compartment model and the brain targeting evaluated by the value of drug targeting index (DTI). The Cmax in blood and brain by intravenous injection were higher than intranasal administration, but the intranasal administration of MRT0-infinity significantly prolonged and increased by nearly 2.03 and 1.86 times, respectively. The DTI value of Salvianolic acid B was 5.54 and bioavailability (F) was 43.98%. After nasal administration of Salvianolic acid B, it has a certain brain targeting, which could become a new drug system for the treatment of brain diseases. PMID- 29027832 TI - Clinical evaluation of P-glycoprotein inhibition by venetoclax: a drug interaction study with digoxin. AB - 1. Venetoclax is a novel, small molecule B-cell lymphoma-2 (BCL-2) inhibitor that has demonstrated clinical efficacy in a variety of haematological malignancies. Since venetoclax is an inhibitor of P glycoprotein (P-gp) transporter, a study was conducted in healthy, female volunteers to evaluate the effect of venetoclax on the pharmacokinetics of digoxin, a P-gp probe substrate. 2. Volunteers received a single oral dose of digoxin (0.5 mg) with or without a single oral dose of venetoclax (100 mg). Serial blood samples were obtained for pharmacokinetic assessments of digoxin and venetoclax and serial urine samples were obtained for measurement of digoxin concentrations. Safety was assessed throughout the study. 3. Coadministration of digoxin and venetoclax increased digoxin maximum observed plasma concentration (Cmax) by 35% and area under the plasma-concentration time curve (AUC0-infinity) by 9%. Digoxin half-life, renal clearance and the fraction excreted unchanged in urine remained relatively similar. The results of this study indicate that venetoclax can increase the concentrations of P-gp substrates. Narrow therapeutic index P-gp substrates should be administered six hours prior to venetoclax to minimise the potential interaction. PMID- 29027835 TI - Identifying the Types of Support Needed by Interprofessional Teams Providing Pediatric End-of-Life Care: A Thematic Analysis. AB - BACKGROUND: Despite the number of interprofessional team members caring for children at the end of life, little evidence exists on how institutions can support their staff in providing care in these situations. OBJECTIVE: We sought to evaluate which aspects of the hospital work environment were most helpful for multidisciplinary team members who care for patients at the end of life and identify areas for improvement to better address staff needs. DESIGN: Qualitative thematic analysis was completed of free-text comments from a survey distributed to interprofessional staff members involved in the care of a recently deceased pediatric patient. A total of 2701 surveys were sent; 890 completed. Free-text responses were provided by 306 interprofessional team members. SETTING/SUBJECTS: Interprofessional team members involved in the care of a child who died at a 348 bed academic children's hospital in the Midwestern United States. MEASUREMENTS: Realist thematic analysis of free-text responses was completed in Dedoose using a deductive and inductive approach with line-by-line coding. Descriptive statistics of demographic information was completed using Excel. RESULTS: Thematic analysis of the 306 free-text responses identified three main support-related themes. Interprofessional team members desire to have (1) support through educational efforts such as workshops, (2) support from colleagues, and (3) support through institutional practices. CONCLUSIONS: Providers who participate in end-of-life work benefit from ongoing support through education, interpersonal relationships, and institutional practices. Addressing these areas from an interprofessional perspective enables staff to provide the optimal care for patients, patients' families, and themselves. PMID- 29027834 TI - Extrapolation of plasma clearance to understand species differences in toxicokinetics of bisphenol A. AB - 1. Understanding species differences in the toxicokinetics of bisphenol A (BPA) is central to setting acceptable exposure limits for human exposures to BPA. BPA toxicokinetics have been well studied, with controlled oral dosing studies in several species and across a wide dose range. 2. We analyzed the available toxicokinetic data for BPA following oral dosing to assess potential species differences and dose dependencies. BPA is rapidly conjugated and detoxified in all species. The toxicokinetics of BPA can be well described using non compartmental analyses. 3. Several studies measured free (unconjugated) BPA in blood and reported area under the curve (AUC) of free BPA in blood of mice, rats, monkeys, chimpanzees and humans following controlled oral doses. Extrinsic clearance was calculated and analyzed across species and dose using allometric scaling. 4. The results indicate free BPA clearance is well described using allometric scaling with high correlation coefficients across all species and doses up to 10 mg/kg. The results indicate a human equivalent dose factor (HEDf) of 0.9 is appropriate for extrapolating a point of departure from mice and rats to a human equivalent dose (HED), thereby replacing default uncertainty factors for animal to human toxicokinetics. PMID- 29027833 TI - Trichostatin A and 5-Aza-2'-Deoxycytidine influence the expression of cold induced genes in Arabidopsis. AB - The expression of cold-induced genes is critical for plants to survive under freezing stress. However, the underlying mechanisms for the decision of when, where, and which genes to express are unclear when a plant meets a sudden temperature drop. Previous studies have demonstrated epigenetics to play a central role in the regulation of gene expression in plant responses to environmental stress. DNA methylation and histone deacetylation are the two most important epigenetic modifications. This study was conducted to investigate the effects of inhibiting DNA methylation and histone deacetylation on gene expression, and to explore the potential role of epigenetics in plant responses to cold stress. The results revealed that histone deacetylase inhibitors (trichostatin A) and DNA methylation inhibitors (5-Aza-2'-deoxycytosine) treatment enhanced cold tolerance. DNA microarray analysis and the gene ontology method revealed 76 cold-induced differently expressed genes in Arabidopsis thaliana seedlings that were treated to 0 degrees C for 24 h following Trichostatin A and 5-Aza-2'-Deoxycytidine. Furthermore, analyses of metabolic pathways and transcription factors of 3305 differentially expressed genes were performed. Each four metabolic pathways were significantly affected (p < 0.01) by Trichostatin A and 5-Aza-2'-Deoxycytidine. Finally, 10 genes were randomly selected and verified via qPCR analysis. Our study indicated that Trichostatin A and 5-Aza-2'-Deoxycytidine can improve the plant cold resistance and influence the expression of the cold-induced gene in A. thaliana. This result will advance our understanding of plant freezing responses and may provide a helpful strategy for cold tolerance improvement in crops. PMID- 29027836 TI - Developing Macroindicators of Palliative Care Development in Africa: A Process with In-Country and International Experts. AB - BACKGROUND: Indicators specific to the African context are important to measure palliative care (PC) development accurately. OBJECTIVE: To describe the process used to develop a set of PC macroindicators for Africa. DESIGN: Open-ended interviews on national PC development were conducted with five African Country Experts. Indicators were rated (1-4) by 14 Country Experts for validity and feasibility. An additional 11 interviews were conducted to ensure indicator saturation. Indicators scoring >=3 proceeded to a modified two-round RAND/UCLA Delphi with global experts on PC development (International Committee). Finally, indicators were ranked by the project team. SETTING/SUBJECTS: Sixteen country experts from 7 African countries and 14 International Committee members. RESULTS: One hundred three indicators were rated by Country Experts, and 58 proceeded to the Delphi. Thirty-eight indicators were rated as important by the International Committee, and the project team ranked 19 of these as most important. Service indicators (n = 6) included the number of types of services most important in Africa (e.g., hospices, home based) and coverage. Policy indicators (n = 4) included the existence of PC in national policies, guidelines, and budget and a responsible person. Education indicators (n = 3) consisted of inclusion of PC in medical and nursing curricula and recognition as a specialty. Medicine indicators (n = 4) focused on morphine availability, consumption, and prescribing barriers. Vitality indicators (n = 2) reflected the existence of a national association and its activity. CONCLUSION: The process to develop African-specific PC indicators resulted in 19 indicators that were used to measure PC development as a comparative baseline for development in African countries. PMID- 29027838 TI - The role of appraisal in dysphoric affect reactivity to positive laboratory films and daily life events in depression. AB - Hedonic deficits are linked to protracted dysphoric affect (DA) in depression, a disorder characterised by emotion context insensitivity (ECI). Recent findings from daily life studies contradict the ECI view. This study longitudinally investigated DA across laboratory and daily life contexts and the conditions associated with discrepancies in DA reactivity. Thirty-three healthy controls and 41 adults with major depressive disorder (MDD) provided responses to neutral and positive (a) films viewed in the laboratory and (b) daily events recorded over the course of three days using ecological momentary assessment (EMA) methodology. The current study reports on participants' appraisals of films and events and their subsequent DA, both rated individually after each task and daily event. Despite large group similarities in appraisals of the positive film and life events, MDDs appraised the neutral film and neutral life events as less important (film: d = .58; event: eta2 = .07) and less pleasant (film: d = .56; event: eta2 = .18) relative to controls. While MDDs reported higher DA both in the laboratory and in daily life, they experienced larger decreases in DA during positive life events (B = -.77, SE = .28, t(73) = -2.70, p = .009), but not in response to the positive film relative to controls. Results indicate that higher pleasantness appraisals in daily life predicted larger decreases in DA among MDDs than controls (B = -.24, SE = .06, t(73) = -4.10, p < .001). Finally, lower pleasantness appraisals of a standardised neutral film predicted larger DA decreases among MDDs during positive life events (B = 1.28, SE = .46, t(73) = 2.77, p = .006). The implications of valence and relevance of context for DA reactivity and mood repair are discussed. PMID- 29027837 TI - Malpractice in paediatric minimally invasive surgery - a current concept: Results of an international survey. AB - This study aimed to assess malpractice in paediatric minimally invasive surgery (MIS), and attitudes, prevention strategies and mechanisms to support surgeons while they are under investigation. An observational, multicentric, questionnaire based study was conducted. The survey questionnaire was sent via mail, and it comprised four sections. Twenty-four paediatric surgeons (average age 54.6 years), from 13 different countries, participated in this study. The majority had >15 years of experience in MIS. Three (12.5%) surgeons reported a total of five malpractice claims regarding their MIS activity. The reasons for the claims were a postoperative complication in 3/5 (60%) cases, a delayed/failed diagnosis in 1/5 (20%) cases and the death of the patient in 1/5 (20%) cases. The claims concluded with the absolution of the surgeon in all cases, and monetary compensation to the claimant in two (40%) cases. Eleven (45.8%) surgeons were invited as expert counsels in medico-legal actions. Medico-legal aspects have a minimal impact on the MIS activity of paediatric surgeons. In this series, claims concluded with the absolution of the surgeon in all cases, but they had a negative effect on the surgeon's reputation and finances. A key element in supporting surgeons while they are under investigation is always to choose a surgeon who is an expert in paediatric MIS as legal counsel. A constant update on innovations in paediatric MIS and appropriate professional liability insurance may also play a key role in reducing medico-legal consequences. PMID- 29027839 TI - EphB receptors, mainly EphB3, contribute to the proper development of cortical thymic epithelial cells. AB - EphB and their ligands ephrin-B are an important family of protein tyrosine kinase receptors involved in thymocyte-thymic epithelial cell interactions known to be key for the maturation of both thymic cell components. In the present study, we have analyzed the maturation of cortical thymic epithelium in EphB deficient thymuses evaluating the relative relevance of EphB2 and EphB3 in the process. Results support a relationship between the epithelial hypocellularity of mutant thymuses and altered development of thymocytes, lower proportions of cycling thymic epithelial cells and increased epithelial cell apoptosis. Together, these factors induce delayed development of mutant cortical TECs, defined by the expression of different cell markers, i.e. Ly51, CD205, MHCII, CD40 and beta5t. Furthermore, although both EphB2 and EphB3 are necessary for cortical thymic epithelial maturation, the relevance of EphB3 is greater since EphB3-/- thymic cortex exhibits a more severe phenotype than that of EphB2 deficient thymuses. PMID- 29027840 TI - Male factor infertility and risk of multiple sclerosis: A register-based cohort study. AB - BACKGROUND: Gender, possibly due to the influence of gonadal hormones, is presumed to play a role in the pathogenesis of multiple sclerosis (MS), but no studies have evaluated whether male infertility is associated with MS. OBJECTIVE: To study the association between male factor infertility and prevalent as well as incident MS. METHOD: Our cohort was established by linkage of the Danish National in vitro fertilization (IVF) registry to The Danish Multiple Sclerosis Registry and consisted of 51,063 men whose partners had undergone fertility treatment in all public and private fertility clinics in Denmark between 1994 and 2015. RESULTS: With a median age of 34 years at baseline, 24,011 men were diagnosed with male factor infertility and 27,052 did not have male factor infertility and made up the reference group. Men diagnosed with male factor infertility had a higher risk of prevalent (odds ratio (OR) = 1.61, 95% confidence interval (95% CI) 1.04-2.51) and incident MS (hazard ratio (HR) = 1.28, 95% CI 0.76-2.17) when compared to the reference group. CONCLUSION: This nationwide cohort study has shown, for the first time, an association between male infertility and MS which may be due to underlying common etiologies such as hypogonadism, shared genetics, or a joint autoimmune component. PMID- 29027841 TI - Diffusion tensor tractography in cerebral small vessel disease: correlation with cognitive function. AB - Background Patients with cerebral small vessel disease may suffer from varying levels of cognitive deficit and may progress on to vascular dementia. The extent of involvement, as seen on conventional magnetic resonance (MR) measures, correlates poorly with the level of cognitive decline. The purpose of this study was to investigate the utility of diffusion tensor imaging (DTI) as a marker for white matter damage in small vessel disease and to assess its correlation with cognitive function. Methods Thirty consecutive patients with cerebral small vessel disease underwent conventional MR imaging, DTI, and neuropsychological assessment. Results On tractographic analysis, fractional anisotropy was significantly reduced while mean diffusivity significantly increased in several white matter tracts. The alteration in DTI indices correlated well with cognitive function. No significant correlation was identified between T2 lesion load and cognitive performance. Conclusions Tractographic analysis of white matter integrity is a useful measure of disease severity and correlates well with cognitive function. It may have a significant potential in monitoring disease progression and may serve as a surrogate marker for treatment trials. PMID- 29027843 TI - The impact of vascular risk factors on brain volume and lesion load in patients with early multiple sclerosis. AB - BACKGROUND: Vascular risk factors (VRF) in multiple sclerosis (MS) patients have been associated with lower brain volumes. It is currently unknown if this association already exists in early MS and how it develops over time. METHODS: We identified 82 patients with clinically isolated syndrome (CIS) ( n = 61) or with early relapsing-remitting MS ( n = 21) and assessed their VRF including arterial hypertension, hyperlipidaemia, diabetes mellitus and smoking. We analysed T2 lesion load, normalized brain volume (NBV), cortical grey (cGMV) and white matter volumes (WMV), thalamic and basal ganglia volumes at baseline and follow-up magnetic resonance imaging (MRI) and assessed the percentage of brain volume change (PBVC) using SIENA. RESULTS: Patient mean age was 32.4 (+/-8.7) years and 54 (65%) were women. Median follow-up period was 42 (29-54) months. In total, 26 patients (31.7%) had one or more VRF (VRF+). At baseline, VRF+ patients had a lower NBV (1530.9 cm3 vs 1591.2 cm3, p = 0.001), a lower cGMV (628.5 cm3 vs 668.6 cm3, p = 0.002) and WMV (752.2 cm3 vs 783.9 cm3, p = 0.009) than VRF-negative patients. Similar results were obtained at follow-up. PBVC was comparable between patients with and without VRF. CONCLUSION: VRF are associated with lower brain volume already in early MS but do not lead to increased brain volume loss during 3.5 years of follow-up. PMID- 29027842 TI - WRKY transcription factors are involved in brassinosteroid signaling and mediate the crosstalk between plant growth and drought tolerance. AB - Brassinosteroids (BRs) are critical for the plant growth and development. BRs signal through the plasma membrane localized receptor-like kinases to downstream transcription factors BES1/BZR1 to regulate the expression of thousands of genes for various BR responses. In addition to the role in plant growth and development, BRs have been implicated in responses to environmental stresses such as drought. However, the mechanism through which BRs regulate drought have just begun emerging. We have recently found that a group of WRKY transcription factors, WRKY46, WRKY54, WRKY70, which are well known for the function in abiotic and biotic stress, cooperates with BES1 to mediate BR-regulated drought response. The wrky46 wrky54 wrky70 triple mutants showed growth defect, likely due to impaired BR signaling as well as some reduction of endogenous BR level. WRKY46/54/70 cooperates with BES1 to regulate the expression of BR target genes to promote growth. We also found that WRKY46/54/70 negatively modulates drought tolerance by globally repressing drought-inducible gene expression. Thus, our result uncovers a new role for WRKY transcription factors in BR signaling and provides the molecular mechanism for BR-regulated plant growth and drought stress through WRKY46/54/70 and BES1 transcription factors. PMID- 29027844 TI - Controversies and best practices for acute scaphoid fracture management. AB - Acute scaphoid fractures are common wrist injuries that continue to elicit debate from surgeons regarding the most appropriate diagnostic and management algorithms. This review will examine the current literature and trends, in an attempt to provide the reader with an evidence-based discussion regarding current controversies of interest to clinicians. In addition, an attempt will be made to provide recommendations for the best treatment practices for acute scaphoid fractures. PMID- 29027846 TI - Letters to the Editor. PMID- 29027845 TI - The potent mechanism-based inactivation of CYP2D6 and CYP3A4 with fusidic acid in in vivo bioaccumulation. AB - 1. The accumulation of fusidic acid (FA) after multiple doses of FA has been reported on in previous studies but the related mechanisms have not been clarified fully. In the present study, we explain the mechanisms related to the mechanism-based inactivation of CYP2D6 and CYP3A4. 2. The irreversible inhibitory effects of FA on CYP2D6 and CYP3A4 were examined via a series of experiments, including: (a) time-, concentration- and NADPH-dependent inactivation, (b) substrate protection in enzyme inactivation and (c) partition ratio with recombinant human CYP enzymes. Metoprolol alpha-hydroxylation and midazolam 1' hydroxylation were used as marker reactions for CYP2D6 and CYP3A4 activities, and HPLC-MS/MS measurement was also utilised. 3. FA caused to the time- and concentration-dependent inactivation of CYP2D6 and CYP3A4. About 55.8% of the activity of CYP2D6 and 75.8% of the activity of CYP3A4 were suppressed after incubation with 10 MUM FA for 15 min. KI and kinact were found to be 2.87 MUM and 0.033 min-1, respectively, for CYP2D6, while they were 1.95 MUM and 0.029 min-1, respectively, for CYP3A4. Inhibition of CYP2D6 and CYP3A4 activity was found to require the presence of NADPH. Substrates of CYP2D6 and CYP3A4 showed that the enzymes were protected against the inactivation induced by FA. The estimated partition ratio for the inactivation was 7 for CYP2D6 and 12 for CYP3A4. 4. FA is a potent mechanism-based inhibitor of CYP2D6 and CYP3A4, which may explain the accumulation of FA in vivo. PMID- 29027847 TI - Antimicrobial activity of a bioelectric dressing using an in vitro wound pathogen colony drip-flow reactor biofilm model. AB - OBJECTIVE: We performed in vitro antibiofilm testing of a silver and zinc containing microcurrent generating bioelectric dressing (BED) against clinical wound pathogens to determine its efficacy in preventing biofilm formation under low shear and continuous flow conditions, simulating wound infection environments. METHOD: We customised an in vitro colony drip-flow reactor (DFR) biofilm model for efficacy evaluation of BED. Each bacterial pathogen was diluted to 104CFU/ml and inoculated on the polycarbonate filter membrane as an abiotic support. BED and controls (no treatment, gauze, and blank polyester with no silver and zinc) were applied directly on the membranes where bacterial cultures were inoculated. Biofilms were continuously developed onto the membranes for 72 hours at room temperature. Biofilm formation was confirmed by crystal violet staining and microscopic observation. Through vigorous shaking and sonication, the released bacteria were serially diluted, plated, and incubated for 24 hours at 37 degrees C to determine the numbers of surviving bacteria. RESULTS: Biofilms were well developed onto blank polyesters, but not the BED after 72 hours incubation. Crystal violet staining from the blank polyesters showed large and fully grown biofilms. We observed an inhibition in bacterial growth on BED treatment. The antibiofilm activity of the BED against each of eight monospecies biofilms showed a 1- or 2 log10 (or 10- or 100-fold) reduction in bacterial numbers compared with those of controls. CONCLUSION: Our results demonstrated that colony DFR biofilm model was an appropriate for testing the antibiofilm efficacy of BED under low shear and continuous flow conditions for simulating clinical wound environments. The bioelectric currents generated from the silver and zinc active ingredients in the dressing resulted in antibiofilm activity of this wound care device. DECLARATION OF INTEREST: The opinions or assertions contained herein are the private views of the authors, based on scientific investigation, and are not to be construed as official or as reflecting the views of the Department of Defense, the United States Government or any of the authors' employers. Dr. Mina Izadjoo has served as a consultant to Vomaris Innovations Inc. PMID- 29027848 TI - Evaluation of tissue engineering products for the management of neuropathic diabetic foot ulcers: an interim analysis. AB - OBJECTIVE: The objective of this prospective, multicentre clinical study is to assess the application of MatriStem MicroMatrix (MSMM) and MatriStem Wound Matrix (MSWM) (porcine urinary bladder derived extracellular matrix) compared with Dermagraft (DG) (human fibroblast-derived dermal substitute) for the management of non-healing diabetic foot ulcers (DFUs). METHOD: A randomised, multicentre study was conducted at thirteen centers throughout the US. It was designed to evaluate the incidence of ulcer closure, rate of ulcer healing, wound characteristics, patient quality of life, cost-effectiveness, and recurrence. Those subjects whose DFUs decreased in size by <=30% or increased by <=50% during the standard of care (SOC) phase were randomised into the treatment phase of the study. The study evaluated complete wound closure by eight weeks with weekly device application. A two-week post treatment SOC phase followed the treatment phase for any wounds that did not heal by the end of eight weeks, and wound closure was also evaluated at the end of that period. Ulcer recurrence at 6 months post-treatment was evaluated in the subjects that showed wound healing by the end of the post-treatment SOC phase. Standard adjunctive therapy, including debridement, saline irrigation and foot off-loading, was provided to both arms during the four-week screening period, after which eligible subjects were randomised in a 1:1 ratio, to either the MatriStem (MS) or DG treatment arm. This study was developed to evaluate the hypothesis that the wound outcomes observed after wound management with MS were non-inferior to those of DG after eight weeks. The authors present the planned interim results of this study after one half of the projected enrolment was completed. RESULTS: There were 95 subjects consented and entered into the SOC four-week screening phase of the trial and 56 were randomised into the treatment phase. At the planned interim analysis, there was a significantly lower cost per subject and significant improvement in patient quality of life for the subjects treated with MS compared with those managed with DG. However, there was not a statistically significant difference found during the analysis of the interim data between the two study groups for rate of wound healing or number of subjects with complete wound closure. CONCLUSION: The data from this interim analysis show that MSMM and MSWM provide results for healing DFUs that are similar to the results obtained for DG at a significant quality of life and economic advantage. DECLARATION OF INTEREST: The opinions expressed are those of the authors and not necessarily those of the Department of Veterans Affairs or the United States Government. T.W. Gilbert is employed as the Chief Science Officer and is a stockholder in ACell, Inc., which commercializes MatriStem Wound Matrix and MicroMatrix. None of the other authors have a conflict of interest to declare. PMID- 29027849 TI - Immune and vascular dysfunction in diabetic wound healing. AB - : The diminished capacity for wound healing in patients with diabetes contributes to morbidity through ulceration and recurrent infections, loss of function and decreased workplace productivity, increased hospitalisation rates, and rising health-care costs. These are due to diabetes' effects on signalling molecules, cellular cascades, different cell populations, and the vasculature. The function of multiple immune system components including cellular response, blood factors, and vascular tone are all negatively impacted by diabetes. The purpose of this paper is to review the current understanding of immune and vascular dysfunction contributing to impaired wound healing mechanisms in the diabetic population. Normal wound healing mechanisms are reviewed followed by diabetic aberrations to immune and inflammatory function and atherogenesis and angiopathy. DECLARATION OF INTEREST: The authors have no financial or personal relationships to people or organisations that could potentially and inappropriately influence their work and conclusions. PMID- 29027851 TI - Treatment of diabetic foot ulcers with dehydrated amniotic membrane allograft: a prospective case series. AB - OBJECTIVE: A diabetic foot ulcer (DFU) is one of the many potential complications associated with diabetes. If not effectively and rapidly treated, DFUs can result in lower extremity amputations. This prospective case series aimed to assess the effectiveness of a dehydrated amniotic-derived tissue allograft (DAMA), with regards to time to wound closure and total number of applications. METHOD: Patients were recruited with a neuropathic non-healing DFU(s) despite standard care for at least 4 weeks before the study. The number of DAMA applications and time between applications was based on the physician's judgment. For the majority of patients (n=13/14), offloading, usually total contact casting (TCC), was used in conjunction with DAMA. Wounds were assessed, measured, and photographed every 1-2 weeks. RESULTS: Cases included 14 patients (11 men, 3 women; mean age 56.7+/ 9.1 years) with 15 non-healing neuropathic DFUs with a mean baseline wound area of 6.5+/-11.6cm2 (median: 2.2cm2; range: 0.1-44.2cm2) and mean volume of 4.3+/ 10.9cm3 (median: 0.3cm3; range: 0-39.8cm3). All patients in this series achieved complete wound closure within a median time of 5 weeks (range: 1-14 weeks). Wound area was reduced by a median of 58.3% at week 1 and 74.1% at week 3, and volume by a median of 62.8% at week 1, 97.4% at week 3 and by a median of 100% at week 5 and all time points thereafter. Patients received a median of 2 DAMA applications (range: 1-11). In those that required more than 1 application (n=12), DAMA was applied at intervals of 1 week (n=3) or >=2 weeks (n=9). Smaller wounds (areas <2.2cm2) closed rapidly (<1 month, 1-2 applications), whereas larger wounds (>2.2cm2) required >2 weekly/biweekly applications. CONCLUSION: The use of DAMA, particularly when coupled with TCC, led to wound closure of DFUs in all patients in this case series, including complex patients with DFUs of >=1 year in duration, lack of prior response to conservative treatment measures, area >10cm2 and/or multiple comorbidities. Prospective randomised trials would help to elucidate the precise role of DAMA in these encouraging results. DECLARATION OF INTEREST: Derma Sciences, Inc. (Princeton, NJ) funded editorial support services. PMID- 29027852 TI - A single-centre, retrospective study of cryopreserved umbilical cord/amniotic membrane tissue for the treatment of diabetic foot ulcers. AB - OBJECTIVE: Histopathological studies have shown a prolonged inflammatory phase in wounds of patients with diabetes, delaying formation of mature granulation tissue and reducing wound tensile strength, making these wounds difficult for physicians to heal. Cryopreserved human umbilical cord (cUC) tissues possess unique anti inflammatory and anti-scarring properties and have been found to help improve closure of these chronic wounds. METHOD: A retrospective chart review was performed to assess the efficacy of cUC as an advanced treatment modality to help promote the closure of chronic DFUs. Overall healing rate, duration to wound closure, and number of cUC applications used to achieve closure were used to assess cUC treatment efficacy. RESULTS: A total of 32 wounds in 29 patients treated at a single health-care centre were included in the study population The average initial wound area for all wounds was 10.6 +/- 2.15cm2. Of the 32 wounds 28 achieved complete epithelialisation for an overall healing rate of 87.5%. Average time to wound closure was 13.8 +/- 1.95 weeks with a median of 9 weeks and an average of 1.68 +/- 0.18 cUC applications. CONCLUSION: The results suggest cUC allograft may be effective in improving the healing of DFUs ulcers as well as potentially reducing the medical costs associated with chronic DFUs due to the low number of applications needed to achieve complete wound closure. Prospective, randomised controlled trials are suggested to better understand the efficacy of cUC in chronic wound healing. DECLARATION OF INTEREST: Dr Raphael is a paid speaker for Amniox Medical, Inc. PMID- 29027853 TI - Intraoperative test stimulation versus stereotactic accuracy as a surgical end point: a comparison of essential tremor outcomes after ventral intermediate nucleus deep brain stimulation. AB - OBJECTIVE Ventral intermediate nucleus deep brain stimulation (DBS) for essential tremor is traditionally performed with intraoperative test stimulation and conscious sedation, without general anesthesia (GA). Recently, the authors reported retrospective data on 17 patients undergoing DBS after induction of GA with standardized anatomical coordinates on T1-weighted MRI sequences used for indirect targeting. Here, they compare prospectively collected data from essential tremor patients undergoing DBS both with GA and without GA (non-GA). METHODS Clinical outcomes were prospectively collected at baseline and 3-month follow-up for patients undergoing DBS surgery performed by a single surgeon. Stereotactic, euclidean, and radial errors of lead placement were calculated. Functional (activities of daily living), quality of life (Quality of Life in Essential Tremor [QUEST] questionnaire), and tremor severity outcomes were compared between groups. RESULTS Fifty-six patients underwent surgery: 16 without GA (24 electrodes) and 40 with GA (66 electrodes). The mean baseline functional scores and QUEST summary indices were not different between groups (p = 0.91 and p = 0.59, respectively). Non-GA and GA groups did not differ significantly regarding mean postoperative percentages of functional improvement (non-GA, 47.9% vs GA, 48.1%; p = 0.96) or QUEST summary indices (non-GA, 79.9% vs GA, 74.8%; p = 0.50). Accuracy was comparable between groups (mean radial error 0.9 +/- 0.3 mm for non-GA and 0.9 +/- 0.4 mm for GA patients) (p = 0.75). The mean euclidean error was also similar between groups (non-GA, 1.1 +/- 0.6 mm vs GA, 1.2 +/- 0.5 mm; p = 0.92). No patient had an intraoperative complication, and the number of postoperative complications was not different between groups (non-GA, n = 1 vs GA, n = 10; p = 0.16). CONCLUSIONS DBS performed with the patient under GA to treat essential tremor is as safe and effective as traditional DBS surgery with intraoperative test stimulation while the patient is under conscious sedation without GA. PMID- 29027854 TI - Long-term outcomes of tissue-based ACTH-antibody assay-guided transsphenoidal resection of pituitary adenomas in Cushing disease. AB - OBJECTIVE Cushing disease is caused by a pituitary micro- or macroadenoma that hypersecretes adrenocorticotropic hormone (ACTH), resulting in hypercortisolemia. For decades, transsphenoidal resection (TSR) has been an efficacious treatment but with certain limitations, namely precise tumor localization and complete excision. The authors evaluated the novel use of a double-antibody sandwich assay for the real-time quantitation of ACTH in resected pituitary specimens with the goals of augmenting pathological diagnosis and ultimately improving long-term patient outcome. METHODS This study involved a retrospective review of records and an analysis of assay values, pathology slides, and MRI studies of patients with Cushing disease who had undergone TSR in the period from 2009 to 2014 and had at least 1 year of follow-up in coordination with an endocrinologist. In the operating room, biopsy specimens from the patients had been analyzed for tissue ACTH concentration. Additional samples were simultaneously sent for frozen section pathological analysis. The ACTH assay performance was compared against pathology assessments of surgical tumor samples using receiver operating characteristic (ROC) analysis and against pre- and postoperative MRI studies. RESULTS Fourteen patients underwent TSR with guidance by ACTH-antibody assay and pathological assessment of 127 biopsy samples and were followed up for an average of 3 years. The ACTH threshold for discriminating adenomatous from normal tissue was 290,000 pg/mg of tissue, based on jointly maximized sensitivity (95.0%) and specificity (71.3%). Lateralization discordance between preoperative MRI studies and surgical visualization was noted in 3 patients, confirming the impression that MRI alone may not achieve optimal localization. A majority of the patients (85.7%) attained long-term disease remission based on urinary free cortisol levels, plasma cortisol levels, and long-term corticosteroid therapy. Comparisons of patient-months of remission and treatment failure showed that the remission rate in the study sample statistically exceeds the rate in historical controls (71.9%; p = 0.0007, Fisher's exact test). Long-term unexpected hormonal deficiencies were statistically similar between study patients (29%) and those in a meta-analysis (25%; p = 0.7596, Fisher's exact test). CONCLUSIONS These preliminary findings reflect the promising potential of tissue-based ACTH antibody-guided assay for improving the cure rates of Cushing disease patients undergoing TSR. Further studies with larger sample sizes, further refinements of assay interpretation, and longer-term follow-ups are needed. PMID- 29027855 TI - Mesial temporal lobe epilepsy: long-term seizure outcome of patients primarily treated with transsylvian selective amygdalohippocampectomy. AB - OBJECTIVE The aim of this study was to present long-term seizure outcome data in a consecutive series of patients with refractory mesial temporal lobe epilepsy primarily treated with transsylvian selective amygdalohippocampectomy (SAHE). METHODS The authors retrospectively analyzed prospectively collected data for all patients who had undergone resective surgery for medically refractory epilepsy at their institution between July 1994 and December 2014. Seizure outcome was assessed according to the International League Against Epilepsy (ILAE) and the Engel classifications. RESULTS The authors performed an SAHE in 158 patients (78 males, 80 females; 73 right side, 85 left side) with a mean age of 37.1 +/- 10.0 years at surgery. Four patients lost to follow-up and 1 patient who committed suicide were excluded from analysis. The mean follow-up period was 9.7 years. At the last available follow-up (or before reoperation), 68 patients (44.4%) had achieved an outcome classified as ILAE Class 1a, 46 patients (30.1%) Class 1, 6 patients (3.9%) Class 2, 16 patients (10.4%) Class 3, 15 patients (9.8%) Class 4, and 2 patients (1.3%) Class 5. These outcomes correspond to Engel Class I in 78.4% of the patients, Engel Class II in 10.5%, Engel Class III in 8.5%, and Engel Class IV in 2.0%. Eleven patients underwent a second surgery (anterior temporal lobectomy) after a mean of 4.4 years from the SAHE (left side in 6 patients, right side in 5). Eight (72.7%) of these 11 patients achieved seizure freedom. The overall ILEA seizure outcome since (re)operation after a mean follow up of 10.0 years was Class 1a in 72 patients (47.0%), Class 1 in 50 patients (32.6%), Class 2 in 7 patients (4.6%), Class 3 in 15 patients (9.8%), Class 4 in 8 patients (5.2%), and Class 5 in 1 patient (0.6%). These outcomes correspond to an Engel Class I outcome in 84.3% of the patients. CONCLUSIONS A satisfactory long-term seizure outcome following transsylvian SAHE was demonstrated in a selected group of patients with refractory temporal lobe epilepsy. PMID- 29027856 TI - Obituary. Robert H. Wilkins, MD, 1934-2017. PMID- 29027857 TI - Is there added value in obtaining cervical spine MRI in the assessment of nontraumatic angiographically negative subarachnoid hemorrhage? A retrospective study and meta-analysis of the literature. AB - OBJECTIVE Diagnostic algorithms for nontraumatic angiographically negative subarachnoid hemorrhage (AN-SAH) vary, and the optimal method remains subject to debate. This study assessed the added value of cervical spine MRI in identifying a cause for nontraumatic AN-SAH. METHODS Consecutive patients 18 years of age or older who presented with nontraumatic SAH between February 1, 2009, and October 31, 2014, with negative cerebrovascular catheter angiography and subsequent cervical MRI were studied. Patients with intraparenchymal, subdural, or epidural hemorrhage; recent trauma; or known vascular malformations were excluded. All cervical MR images were reviewed by two blinded neuroradiologists. The diagnostic yield of cervical MRI was calculated. A literature review was conducted to identify studies reporting the diagnostic yield of cervical MRI in patients with AN-SAH. The weighted pooled estimate of diagnostic yield of cervical MRI was calculated. RESULTS For all 240 patients (mean age 53 years, 48% male), catheter angiography was performed within 4 days after admission (median 12 hours, interquartile range [IQR] 10 hours). Cervical MRI was performed within 19 days of admission (median 24 hours, IQR 10 hours). In a single patient, cervical MRI identified a source for SAH (cervical vascular malformation). Meta-analysis of 7 studies comprising 538 patients with AN-SAH produced a pooled estimate of 1.3% (95% confidence interval 0.5%-2.5%) for diagnostic yield of cervical MRI. No statistically significant between-study heterogeneity or publication bias was identified. CONCLUSIONS Cervical MRI following AN-SAH, in the absence of findings to suggest spinal etiology, has a very low diagnostic yield and is not routinely necessary. PMID- 29027858 TI - Role of the temporal pole in temporal lobe epilepsy seizure networks: an intracranial electrode investigation. AB - OBJECTIVE A convergence of clinical research suggests that the temporal pole (TP) plays an important and potentially underappreciated role in the genesis and propagation of seizures in temporal lobe epilepsy (TLE). Understanding its role is becoming increasingly important because selective resections for medically intractable TLE spare temporopolar cortex (TPC). The purpose of this study was to characterize the role of the TPC in TLE after using dense electrocorticography (ECoG) recordings in patients undergoing invasive monitoring for medically intractable TLE. METHODS Chronic ECoG recordings were obtained in 10 consecutive patients by using an array customized to provide dense coverage of the TP as part of invasive monitoring to localize the epileptogenic zone. All patients would eventually undergo cortico-amygdalohippocampectomy. A retrospective review of the patient clinical records including ECoG recordings, neuroimaging studies, neuropathology reports, and clinical outcomes was performed. RESULTS In 7 patients (70%), the TP was involved at seizure onset; in 7 patients (70%), there were interictal discharges from the TP; and in 1 case, there was early spread to the TP. Seizure onset in the TP did not necessarily correlate with preoperative neuroimaging abnormalities of the TP. CONCLUSIONS These data demonstrate that TPC commonly plays a crucial role in temporal lobe seizure networks. Seizure onset from the TP would not have been predicted based on available neuroimaging data or interictal discharges. These findings illustrate the importance of thoroughly considering the role of the TP prior to resective surgery for TLE, particularly when selective mesial resection is being considered. PMID- 29027860 TI - Editorial. Refining manuscript elements in the Journal of Neurosurgery: when less is more. PMID- 29027859 TI - Quantitative cerebral blood flow using xenon-enhanced CT after decompressive craniectomy in traumatic brain injury. AB - OBJECTIVE Few studies have reported on changes in quantitative cerebral blood flow (CBF) after decompressive craniectomy and the impact of these measures on clinical outcome. The aim of the present study was to evaluate global and regional CBF patterns in relation to cerebral hemodynamic parameters in patients after decompressive craniectomy for traumatic brain injury (TBI). METHODS The authors studied clinical and imaging data of patients who underwent xenon enhanced CT (XeCT) CBF studies after decompressive craniectomy for evacuation of a mass lesion and/or to relieve intractable intracranial hypertension. Cerebral hemodynamic parameters prior to decompressive craniectomy and at the time of the XeCT CBF study were recorded. Global and regional CBF after decompressive craniectomy was measured using XeCT. Regional cortical CBF was measured under the craniectomy defect as well as for each cerebral hemisphere. Associations between CBF, cerebral hemodynamics, and early clinical outcome were assessed. RESULTS Twenty-seven patients were included in this study. The majority of patients (88.9%) had an initial Glasgow Coma Scale score <= 8. The median time between injury and decompressive surgery was 9 hours. Primary decompressive surgery (within 24 hours) was performed in the majority of patients (n = 18, 66.7%). Six patients had died by the time of discharge. XeCT CBF studies were performed a median of 51 hours after decompressive surgery. The mean global CBF after decompressive craniectomy was 49.9 +/- 21.3 ml/100 g/min. The mean cortical CBF under the craniectomy defect was 46.0 +/- 21.7 ml/100 g/min. Patients who were dead at discharge had significantly lower postcraniectomy CBF under the craniectomy defect (30.1 +/- 22.9 vs 50.6 +/- 19.6 ml/100 g/min; p = 0.039). These patients also had lower global CBF (36.7 +/- 23.4 vs 53.7 +/- 19.7 ml/100 g/min; p = 0.09), as well as lower CBF for the ipsilateral (33.3 +/- 27.2 vs 51.8 +/- 19.7 ml/100 g/min; p = 0.07) and contralateral (36.7 +/- 19.2 vs 55.2 +/- 21.9 ml/100 g/min; p = 0.08) hemispheres, but these differences were not statistically significant. The patients who died also had significantly lower cerebral perfusion pressure (52 +/- 17.4 vs 75.3 +/- 10.9 mm Hg; p = 0.001). CONCLUSIONS In the presence of global hypoperfusion, regional cerebral hypoperfusion under the craniectomy defect is associated with early mortality in patients with TBI. Further study is needed to determine the value of incorporating CBF studies into clinical decision making for severe traumatic brain injury. PMID- 29027861 TI - Eloquent: history of a word's adoption into the neurosurgical lexicon. PMID- 29027862 TI - Effect of body mass index on outcome after aneurysmal subarachnoid hemorrhage treated with clipping versus coiling. AB - OBJECTIVE It has been suggested that increased body mass index (BMI) may confer a protective effect on patients who suffer from aneurysmal subarachnoid hemorrhage (aSAH). Whether the modality of aneurysm occlusion influences the effect of BMI on patient outcomes is not well understood. The authors aimed to compare the effect of BMI on outcomes for patients with aSAH treated with surgical clipping versus endovascular coiling. METHODS The authors retrospectively reviewed the outcomes for patients admitted to their institution for the management of aSAH treated with either clipping or coiling. BMI at the time of admission was recorded and used to assign patients to a group according to low or high BMI. Cutoff values for BMI were determined by classification and regression tree analysis. Predictors of poor functional outcome (defined as modified Rankin Scale score > 2 measured >= 90 days after the ictus) and posttreatment cerebral hypodensities detected during admission were then determined separately for patients treated with clipping or coiling using stepwise multivariate logistic regression analysis. RESULTS Of the 469 patients admitted to the authors' institution with aSAH who met the study's inclusion criteria, 144 were treated with clipping and 325 were treated with coiling. In the clipping group, the frequency of poor functional outcome was higher in patients with BMI >= 32.3 kg/m2 (47.6% vs 19.0%; p = 0.007). In contrast, in the coiling group, patients with BMI >= 32.3 kg/m2 had a lower frequency of poor functional outcome at >= 90 days (5.8% vs 30.9%; p < 0.001). On multivariate analysis, high BMI was independently associated with an increased (OR 3.92, 95% CI 1.20-13.41; p = 0.024) and decreased (OR 0.13, 95% CI 0.03-0.40; p < 0.001) likelihood of poor functional outcome for patients treated with clipping and coiling, respectively. For patients in the surgical group, BMI >= 28.4 kg/m2 was independently associated with incidence of cerebral hypodensities during admission (OR 2.44, 95% CI 1.16-5.25; p = 0.018) on multivariate analysis. For patients treated with coiling, BMI >= 33.2 kg/m2 was independently associated with reduced odds of hypodensities (OR 0.45, 95% CI 0.21-0.89; p = 0.021). CONCLUSIONS The results of this study suggest that BMI may differentially affect functional outcomes after aSAH, depending on treatment modality. These findings may aid in treatment selection for patients with aSAH. PMID- 29027863 TI - Potential utility of FLAIR in MRI-negative Cushing's disease. AB - OBJECTIVE Accurate presurgical localization of microadenomas in Cushing's disease (CD) leads to improved remission rates and decreased adverse events. Volumetric gradient recalled echo (3D-GRE) MRI detects pituitary microadenomas in CD in up to 50%-80% cases as a focus of hypointensity due to delayed contrast wash-in. The authors have previously reported that postcontrast FLAIR imaging may be useful in detecting otherwise MRI-negative pituitary microadenomas as foci of hyperintensity. This reflects theoretically complementary imaging of microadenomas due to delayed contrast washout. The authors report on the diagnostic accuracy and clinical utility of FLAIR imaging in the detection of microadenomas in patients with CD. METHODS The authors prospectively analyzed imaging findings in 23 patients (24 tumors) with biochemically proven CD who underwent transsphenoidal surgery for CD. Preoperatively, the patients underwent pituitary MRI with postcontrast FLAIR and postcontrast 3D-GRE sequences. RESULTS Postcontrast FLAIR hyperintensity was detected in macroadenomas, and in 3D-GRE positive or -negative microadenomas. Overall, 3D-GRE was superior in detecting surgically and histopathologically confirmed, location-concordant microadenomas. Of 24 pituitary adenomas, 18 (75%; sensitivity 82%, positive predictive value 95%) were found on 3D-GRE, and 13 (50% [1 was false positive]; sensitivity 55%, positive predictive value 92%) were correctly identified on FLAIR. The stand alone specificity of 3D-GRE and FLAIR was similar (50%). These results confirm the superiority of 3D-GRE as a stand-alone imaging modality. The authors then tested the utility of FLAIR as a complementary tool to 3D-GRE imaging. All 5 patients with negative 3D-GRE MRI displayed a distinct focus of FLAIR enhancement. Four of those 5 cases (80%) had location-concordant positive histopathological results and achieved postsurgical biochemical remission. The remaining patient was not cured, because resection did not include the region of FLAIR hyperintensity. CONCLUSIONS This study suggests that delayed microadenoma contrast washout may be detected as FLAIR hyperintensity in otherwise MRI negative CD cases. The authors propose adding postcontrast FLAIR sequences to complement 3D-GRE for surgical planning in patients with CD. Clinical trial registration no.: NIH protocol 03-N-0164, NCT00060541 (clinicaltrials.gov). PMID- 29027864 TI - Integrating computational methods to predict mutagenicity of aromatic azo compounds. AB - Azo dyes have several industrial uses. However, these azo dyes and their degradation products showed mutagenicity, inducing damage in environmental and human systems. Computational methods are proposed as cheap and rapid alternatives to predict the toxicity of azo dyes. A benchmark dataset of Ames data for 354 azo dyes was employed to develop three classification strategies using knowledge based methods and docking simulations. Results were compared and integrated with three models from the literature, developing a series of consensus strategies. The good results confirm the usefulness of in silico methods as a support for experimental methods to predict the mutagenicity of azo compounds. PMID- 29027865 TI - The bidirectional relation of emotion perception and social judgments: the effect of witness' emotion expression on perceptions of moral behaviour and vice versa. AB - The present research tested the notion that emotion expression and context perception are bidirectionally related. Specifically, in two studies focusing on moral violations (N = 288) and positive moral deviations (N = 245) respectively, we presented participants with short vignettes describing behaviours that were either (im)moral, (in)polite or unusual together with a picture of the emotional reaction of a person who supposedly had been a witness to the event. Participants rated both the emotional reactions observed and their own moral appraisal of the situation described. In both studies, we found that situational context influenced how emotional reactions to this context were rated and in turn, the emotional expression shown in reaction to a situation influenced the appraisal of the situation. That is, neither the moral events nor the emotion expressions were judged in an absolute fashion. Rather, the perception of one also depended on the other. PMID- 29027866 TI - Magnetic resonance imaging-guided laser interstitial thermal therapy as treatment for intractable insular epilepsy in children. AB - OBJECTIVE Seizure onset within the insula is increasingly recognized as a cause of intractable epilepsy. Surgery within the insula is difficult, with considerable risks, given the rich vascular supply and location near critical cortex. MRI-guided laser interstitial thermal therapy (LiTT) provides an attractive treatment option for insular epilepsy, allowing direct ablation of abnormal tissue while sparing nearby normal cortex. Herein, the authors describe their experience using this technique in a large cohort of children undergoing treatment of intractable localization-related epilepsy of insular onset. METHODS The combined epilepsy surgery database of Cook Children's Medical Center and Dell Children's Hospital was queried for all cases of insular onset epilepsy treated with LiTT. Patients without at least 6 months of follow-up data and cases preoperatively designated as palliative were excluded. Patient demographics, presurgical evaluation, surgical plan, and outcome were collected from patient charts and described. RESULTS Twenty patients (mean age 12.8 years, range 6.1 18.6 years) underwent a total of 24 LiTT procedures; 70% of these patients had normal findings on MRI. Patients underwent a mean follow-up of 20.4 months after their last surgery (range 7-39 months), with 10 (50%) in Engel Class I, 1 (5%) in Engel Class II, 5 (25%) in Engel Class III, and 4 (20%) in Engel Class IV at last follow-up. Patients were discharged within 24 hours of the procedure in 15 (63%) cases, in 48 hours in 6 (24%) cases, and in more than 48 hours in the remaining cases. Adverse functional effects were experienced following 7 (29%) of the procedures: mild hemiparesis after 6 procedures (all patients experienced complete resolution or had minimal residual dysfunction by 6 months), and expressive language dysfunction after 1 procedure (resolved by 3 months). CONCLUSIONS To their knowledge, the authors present the largest cohort of pediatric patients undergoing insular surgery for treatment of intractable epilepsy. The patient outcomes suggest that LiTT can successfully treat intractable seizures originating within the insula and offers an attractive alternative to open resection. This is the first description of LiTT applied to insular epilepsy and represents one of only a few series describing the use of LiTT in children. The results indicate that seizure reduction after LiTT compares favorably to that after conventional open surgical techniques. PMID- 29027867 TI - Unplanned readmission within 90 days after pediatric neurosurgery. AB - OBJECTIVE Readmission and return to operating room after surgery are increasingly being used as a proxy for quality of care. Nearly 60% of these readmissions are unplanned, which translates into billions of dollars in health care costs. The authors set out to analyze the incidence of readmission at their center, to define causes of unplanned readmission, and to determine the preoperative and surgical variables associated with readmissions following pediatric neurosurgery. METHODS A total of 536 children who underwent operations for neurosurgical diagnoses between 2012 and 2015 and who were later readmitted were included in the final analysis. Unplanned readmissions were defined to have occurred as a result of complications within 90 days after index surgery. Patient records were retrospectively reviewed to determine the primary diagnosis, surgery indication, and cause of readmission and return to operating room. The cost for index hospitalization, readmission episode, and total cost were derived based on the charges obtained from administrative data. Bivariate and multivariable analyses were conducted. RESULTS Of 536 patients readmitted in total, 17.9% (n = 96) were readmitted within 90 days. Of the overall readmissions, 11.9% (n = 64) were readmitted within 30 days, and 5.97% (n = 32) were readmitted between 31 and 90 days. The median duration between discharge and readmission was 20 days (first quartile [Q1]: 9 days, third quartile [Q3]: 36 days). The most common reason for readmission was shunt related (8.2%, n = 44), followed by wound infection (4.7%, n = 25). In the risk-adjusted multivariable logistic regression model for total 90-day readmission, patients with the following characteristics: younger age (p = 0.001, OR 0.886, 95% CI 0.824-0.952); "other" (nonwhite, nonblack) race (p = 0.024, OR 5.49, 95% CI 1.246-24.2); and those born preterm (p = 0.032, OR 2.1, 95% CI 1.1-4.12) had higher odds of being readmitted within 90 days after discharge. The total median cost for patients undergoing surgery in this study cohort was $11,520 (Q1: $7103, Q3: $19,264). For the patients who were readmitted, the median cost for a readmission episode was $8981 (Q1: $5051, Q3: $18,713). CONCLUSIONS Unplanned 90-day readmissions in pediatric neurosurgery are primarily due to CSF-related complications. Patients with the following characteristics: young age at presentation; "other" race; and children born preterm have a higher likelihood of being readmitted within 90 days after surgery. The median cost was > $8000, which suggests that the readmission episode can be as expensive as the index hospitalization. Clearly, readmission reduction has the potential for significant cost savings in pediatric neurosurgery. Future efforts, such as targeted education related to complication signs, should be considered in the attempt to reduce unplanned events. Given the single-center, retrospective study design, the results of this study are primarily applicable to this population and cannot necessarily be generalized to other institutions without further study. PMID- 29027868 TI - Posttraumatic complications in pediatric skull fracture: dural sinus thrombosis, arterial dissection, and cerebrospinal fluid leakage. AB - OBJECTIVE Skull fracture is associated with several intracranial injuries. The object of this study was to determine the rate of fracture associated with venous thrombosis, intracranial arterial dissection (ICAD), and cerebrospinal fluid (CSF) leakage in pediatric patients. Further, the authors aimed to highlight the features of pediatric skull fracture that predict poor neurological outcomes. METHOD In this retrospective study, the authors evaluated the records of 258 pediatric patients who had incurred a traumatic skull fracture in the period from 2009 to 2015. All the patients had undergone CT imaging, which was used to characterize the type of skull fracture and other important features, including intracranial hemorrhage. Patients with fracture extending to a dural sinus or proximal to major intracranial vessels had undergone vascular imaging to evaluate for venous thrombosis or arterial dissection. Clinical data were also reviewed for patients who had CSF leakage. RESULTS Two hundred fifty-eight patients had 302 skull fractures, with 11.6% having multiple fractures. Falling was the most common mechanism of injury (52.3%), and the parietal bone was most frequently involved in the fracture (43.4%). Diastatic fracture was associated with increased intracranial hemorrhage (p < 0.05). The rate of venous thrombosis was 0.4%, and the rate of ICAD was also 0.4%. The rate of CSF leakage was 2.3%. Skull base fracture was the only significant risk factor associated with an increased risk of CSF leakage (p < 0.05). There was a significant difference in fracture related morbidity in patients younger than versus older than 2 years of age. Patients younger than 2 years had fewer intracranial hemorrhages (21.8% vs 38.8%) and fewer neurosurgical interventions (3.0% vs 12.7%) than the patients older than 2 years (p < 0.001). Moreover, skull fracture in the younger group was mostly caused by falling (81.2% vs 33.1%); in the older group, fracture was most often caused by vehicle-related accidents (35.7% vs 4.0%) and being struck by or against an object (19.1% vs 7.9%). Additionally, skull fracture location was analyzed based on the mechanism of injury. Parietal bone fracture was closely associated with falling, and temporal bone fracture was associated with being struck by or against an object (p < 0.05). Frontal bone fracture was more associated with being struck by or against an object and vehicle-related injury (p < 0.05) than with falling. Vehicle-related accidents and being struck by or against an object, as opposed to falling, were associated with increased surgical intervention (13.3% vs 16.2% vs 3.7%, respectively). CONCLUSIONS Pediatric skull fracture usually has a benign outcome in patients who fall and are younger than 2 years of age. Poor prognostic factors include diastasis, an age > 2 years, and fracture caused by vehicle-related accidents or being struck by or against an object. In this series, the rates of venous thrombosis and ICAD were low, and the authors do not advocate vascular imaging unless these disease entities are clinically suspected. Patients with skull base fracture should be closely monitored for CSF leakage. PMID- 29027869 TI - Acceptance of Telemonitoring Among Patients with Obstructive Sleep Apnea Syndrome: How is the Perceived Interest by and for Patients? AB - BACKGROUND: Obstructive sleep apnea syndrome, a chronic respiratory disease, requires regular adherence to Continuous Positive Airway Pressure (CPAP) therapy. Telemonitoring may be relevant to support adherence, but nonetheless this raises ethical issues around the intrusive nature of the daily life of patients Objective: To explore the acceptance of telemonitoring by patients and the impact of this on adherence. MATERIALS AND METHODS: A prospective and observational study has been performed with 160 patients who initiated their CPAP therapy. The acceptability of telemonitoring was studied using an attitudes' scale of 8 items. A total of 160 patients (111 men, 49 women) responded to the questionnaire at 1 month upon treatment. The adoption of both telemonitoring and adherence behavior were observed at 10 months of therapy. RESULTS: A majority (78%) of patients expressed a favorable attitude toward telemonitoring, but nearly 40% consider this device like intrusive. However, at 10 months of treatment, 78% of patients are still telemonitored. We did not observe a significant difference between telemonitoring patients and nontelemonitoring patients with respect to the mean duration of use of CPAP therapy. However, the risk of stopping CPAP therapy is significantly more important in patients who refused telemonitoring. DISCUSSION AND CONCLUSION: It seems reductive to consider telemonitoring as a simple tool of surveillance to support adherence. It may be preferable to consider telemonitoring as a follow-up proposal. This will allow for more reactive management and close to the needs of the patients, in particular as telemonitoring is, in general, well accepted by patients. PMID- 29027870 TI - Flow diversion of a recurrent, iatrogenic basilar tip aneurysm in a pediatric patient: case report. AB - Endoscopic third ventriculostomy (ETV) is a common treatment for noncommunicating hydrocephalus. Although rare, vascular injury and traumatic pseudoaneurysm development during ETV have been reported. The authors present the case of a 13 year-old boy who underwent repeat ETV (rETV) for shunt and ETV failure, and who suffered an intraoperative subarachnoid hemorrhage due to iatrogenic injury to the basilar tip, with subsequent development of a pseudoaneurysm. Despite initial primary coil embolization, the aneurysm recurred and was definitively treated with flow diversion. In this report, the authors review complication rates associated with ETV and rETV as well as the emerging use of flow diversion and its applications in vessel reconstruction within the pediatric population. PMID- 29027871 TI - Weak evidence for increased motivated forgetting of trauma-related words in dissociated or traumatised individuals in a directed forgetting experiment. AB - Motivated forgetting is the idea that people can block out, or forget, upsetting or traumatic memories, because there is a motivation to do so. Some researchers have cited directed forgetting studies using trauma-related words as evidence for the theory of motivated forgetting of trauma. In the current article subjects used the list method directed forgetting paradigm with both trauma-related words and positive words. After one list of words was presented subjects were directed to forget the words previously learned, and they then received another list of words. Each list was a mix of positive and trauma-related words, and the lists were counterbalanced. Later, subjects recalled as many of the words as they could, including the ones they were told to forget. Based on the theory that motivated forgetting would lead to recall deficits of trauma-related material, we created eight hypotheses. High dissociators, trauma-exposed, sexual trauma exposed, and high dissociators with trauma-exposure participants were hypothesised to show enhanced forgetting of trauma words. Results indicated only one of eight hypotheses was supported: those higher on dissociation and trauma recalled fewer trauma words in the to-be-forgotten condition, compared to those low on dissociation and trauma. These results provide weak support for differential motivated forgetting. PMID- 29027874 TI - Perspectives on Temperature Management. PMID- 29027875 TI - Human factors challenges in emergency management: enhancing individual and team performance in fire and emergency services. PMID- 29027876 TI - Intradural pathology and pathophysiology associated with Chiari I malformation in children and adults with and without syringomyelia. AB - OBJECTIVE The pathophysiology underlying tonsillar herniation and CSF obstruction in Chiari malformation Type I (CM-I) is unclear, and the cause of CM-I-associated syringomyelia is not well understood. A better understanding of this pathophysiology is important for an improved treatment strategy. Therefore, the authors sought to identify, characterize, and examine the intradural pathology and CSF flow pathophysiology in the posterior fossa and at the level of the foramen magnum that occurs in the setting of CM-I. They determined the incidence of these intradural findings and assessed differences across age, with the degree of tonsillar herniation, and in the presence and absence of syringomyelia. METHODS A prospective database initiated in March 2003 recorded all intraoperative findings during surgical treatment of children and adults with CM I with or without syringomyelia. A total of 389 surgeries for CM-I were performed in 379 patients between March 2003 and June 2016. A total of 109 surgeries were performed in 109 patients with CM-I (without osseoligamentous abnormalities) in whom both a posterior fossa extradural and intradural decompression with duraplasty was performed (first-time intradural procedures). Using a surgical microscope, intradural pathology and obstruction of CSF channels were identified and assessed. Student t-tests and Fisher's exact tests compared groups in a series of univariate analyses, followed by multivariate logistic regression. RESULTS The following intradural pathological entities were observed (prevalence noted in parentheses). These include those that did not obstruct CSF flow channels: opacified arachnoid (33.0%), thickened arachnoid (3.7%), ischemic and gliotic tonsils (40.4%), tonsillar cysts (0.9%), and inferior descent of the fourth ventricle and cervicomedullary junction (CMJ) (78.0%). The following intradural pathological entities were observed to obstruct CSF flow channels: medialized tonsils (100%), tonsil overlying and obstructing the foramen of Magendie (21.1%), intertonsillar and tonsil to CMJ arachnoid adhesions (85.3%), vermian posterior inferior cerebellar artery branches obstructing the foramen of Magendie (43.1%), and arachnoid veils or webs obstructing or occluding the foramen of Magendie (52.3%). Arachnoid veils varied in type and were observed in 59.5% of patients with CM-I who had syringomyelia, which was significantly greater than the 33.3% of patients with CM-I without syringomyelia who had an arachnoid veil (p = 0.018). The presence of CM-I with an arachnoid veil had 3.22 times the odds (p = 0.013, 95% CI 1.29-8.07, by multivariate logistic regression) of being associated with syringomyelia, adjusting for tonsillar herniation. The inferior descent of the fourth ventricle and CMJ occurred with a greater degree of tonsillar herniation (p < 0.001) and correlated with a cervicomedullary kink or buckle on preoperative MRI. CONCLUSIONS Intradural pathology associated with CM-I with or without syringomyelia exists in many forms, is more prevalent than previously recognized in patients of all ages, and may play a role in the pathophysiology of CM-I tonsillar herniation. Arachnoid veils appear to partially obstruct CSF flow, are significantly more prevalent in cases of CM-I with syringomyelia, and therefore may play a role in the pathophysiology of CM-I associated syringomyelia. PMID- 29027877 TI - Case report of a patient with tuberculosis of the femur after osteosynthesis with review of literature. PMID- 29027878 TI - Are Prophylactic Antibiotic Agents Indicated in Anorectal Surgery for Patients with Human Immunodeficiency Virus? AB - BACKGROUND: With increased survival among patients with human immunodeficiency virus (HIV), surgeons have been seeing more cases of anal dysplasia and cancer. There is, however, no data on the incidence of surgical site infections (SSIs) in HIV-positive patients undergoing elective anorectal procedures, nor on the administration of prophylactic antibiotic agents. We reviewed a HIV-positive population that has undergone elective anorectal biopsy of areas of dysplasia observed on office anoscopy to assess the need for antibiotic prophylaxis. PATIENTS AND METHODS: A retrospective chart review was performed of all HIV positive patients seen as outpatients in the Colorectal Surgery Division from 2007-2016. Demographics, dates of surgery and follow-up, antibiotic prophylaxis, and pre-operative CD4 count and HIV viral load were recorded for 229 patients. Post-operative examination notes were reviewed to determine the presence of SSIs. The proportion of patients who received prophylaxis was assessed and the SSI rate was calculated. RESULTS: Surgical site infections occurred in 2 of 237 (0.8%) cases without antibiotic prophylaxis and in none of the 38 cases with prophylaxis. This infection rate was found to be lower than that of the general surgery population, with no statistical difference from hemorrhoidectomy patients without HIV. One SSI occurred in a 51-year-old male with a pre-operative CD4 count of 612 per microliter and viral load of zero. Another occurred in a 57-year old female with an unknown CD4 count and viral load. A chi2 analysis showed the incidence of SSIs in the groups with and without prophylaxis was not significantly different (p = 0.563). CONCLUSION: Surgical site infection rates in HIV-positive patients undergoing biopsies for anal dysplasia were similar to patients without HIV undergoing similar minor anorectal procedures, and no difference was noted in the rate of SSI with the administration of prophylactic antibiotic agents. We do not recommend routine use of prophylactic antibiotic agents in this population. PMID- 29027880 TI - 87th Annual Meeting of the American Thyroid Association. PMID- 29027883 TI - Short Call Abstracts. PMID- 29027879 TI - Emerging Ethical Issues in Restorative Dentistry. AB - This article reviews some of the merging ethical issues in restorative dentistry. This is a branch of healthcare concerned with quality of life, since retention of functioning teeth is important in allowing a healthy diet to be consumed. Yet the supply of dentists is such that, in many of the world's poorest countries, extraction is the only viable option for treating tooth decay. Available repair materials present various ethical problems. Silver amalgam is being phased out in much of the world, because of environmental concerns with mercury, yet it is cheap and reliable. Alternatives have been developed, influenced by the West's preoccupation with appearance, yet these materials are difficult to place and are less durable than amalgam. These concerns lead to significant ethical problems, which are explored in this article. It concludes by proposing a way to deal with the emerging ethical problems. PMID- 29027884 TI - Accuracy and Reliability of a Handheld, Nonmydriatic Fundus Camera for the Remote Detection of Optic Disc Edema. AB - BACKGROUND: Optic disc edema can be an important indicator of serious neurological disease, but is poorly detected using the direct ophthalmoscope. Portable fundus photography may overcome this difficulty. INTRODUCTION: The purpose of this study was to determine the sensitivity and specificity of a handheld, nonmydriatic fundus camera for the detection of optic disc edema. MATERIALS AND METHODS: Retrospective review of nonmydriatic optic disc photographs taken with a portable fundus camera (Pictor Plus; Volk Optical, Mentor, OH) from the University of Michigan Neuro-Ophthalmology Clinics. We included 103 consecutive eyes with optic disc edema and 103 consecutive eyes without optic disc edema of 109 patients. Four masked neuro-ophthalmologists graded a single photograph of each optic disc presented in randomized order and documented the presence of optic disc edema. Sensitivity and specificity of graders' photographic interpretation was compared with clinical examinations. Reliability of assessments within and between graders was determined using kappa statistics. RESULTS: The sensitivity and specificity for detection of optic disc edema were 71.8-92.2% and 81.6-95.2%, respectively. Photos were found to be ungradable in 0-8.3% of cases. The intergrader reliabilities ranged from 0.60 [95% confidence interval (CI): 0.52-0.67] to 0.72 (95% CI: 0.66-0.77). Intragrader reliability ranged from 0.76 (95% CI: 0.63-0.92) to 0.82 (95% CI: 0.69-0.95). DISCUSSION: Photographs taken with portable, nonmydriatic technology met threshold sensitivity and specificity for remote screening for optic disc edema when performed by most, but not all graders. Reliability between graders was moderate-strong and strong within individual providers. CONCLUSIONS: Portable photography holds promise for use in remote screening of optic disc edema. PMID- 29027885 TI - Therapeutic Hypothermia in Postcardiac Arrest. PMID- 29027886 TI - Molecular Typing of Bois Noir Phytoplasma Strains in the Chianti Classico Area (Tuscany, Central Italy) and Their Association with Symptom Severity in Vitis vinifera 'Sangiovese'. AB - Bois noir (BN) is the most widespread disease of the grapevine yellows complex in the Euro-Mediterranean area. BN is caused by 'Candidatus Phytoplasma solani' (BNp), transmitted from herbaceous plants to grapevine by polyphagous insect vectors. In this study, genetic diversity among BNp strains and their prevalence and possible association with grapevine symptom severity were investigated in a Sangiovese clone organic vineyard in the Chianti Classico area (Tuscany). Field surveys over 2 years revealed a range of symptom severity on grapevine and an increase of BN incidence. A TaqMan allelic discrimination assay detected only tufB type b among BNp strains, suggesting the prevalence of the bindweed-related ecology. Nucleotide sequence analyses of vmp1 and stamp genes identified 12 vmp1 and 16 stamp sequence variants, showing an overall positive selection for such genes. The prevalent genotype was Vm43/St10, reported for the first time in this study and closely related to strains identified only in the French Eastern Pyrenees. BNp strains identified in the examined vineyard and mostly grouped in separate bindweed-related phylogenetic clusters showed statistically significant differences in their distribution in grapevines exhibiting distinct symptom severity. These results suggest the possible occurrence of a range of virulence within BNp strain populations in the Chianti Classico area. PMID- 29027887 TI - Frequent Shifts in Aspergillus flavus Populations Associated with Maize Production in Sonora, Mexico. AB - Aspergillus flavus frequently contaminates maize, a critical staple for billions of people, with aflatoxins. Diversity among A. flavus L morphotype populations associated with maize in Sonora, Mexico was assessed and, in total, 869 isolates from 83 fields were placed into 136 vegetative compatibility groups (VCGs) using nitrate-nonutilizing mutants. VCG diversity indices did not differ in four agroecosystems (AES) but diversity significantly differed among years. Frequencies of certain VCGs changed manyfold over single years in both multiple fields and multiple AES. Certain VCGs were highly frequent (>1%) in 2006 but frequencies declined repeatedly in each of the two subsequent years. Other VCGs that had low frequencies in 2006 increased in 2007 and subsequently declined. None of the VCGs were consistently associated with any AES. Fourteen VCGs were considered dominant in at least a single year. However, frequencies often varied significantly among years. Only 9% of VCGs were detected all 3 years whereas 66% were detected in only 1 year. Results suggest that the most realistic measurements of both genetic diversity and the frequency of A. flavus VCGs are obtained by sampling multiple locations in multiple years. Single-season sampling in many locations should not be substituted for sampling over multiple years. PMID- 29027889 TI - Cure rate modelling. PMID- 29027888 TI - Same-Hospital Re-Admission Rate Is Not Reliable for Measuring Post-Operative Infection-Related Re-Admission. AB - BACKGROUND: Post-operative infections cause morbidity, consume resources, and are an important quality measure in assessing and comparing hospitals. Commonly used metrics do not account for re-admission to a different hospital. The Nationwide Readmissions Database (NRD) tracks re-admissions across United States (US) hospitals. Infection-related re-admission across US hospitals has not been studied previously. PATIENTS AND METHODS: The 2013 NRD was queried for admissions with a primary International Classification of Diseases and Related Health Problems, 9th revision, Clinical Modification code for the most frequently performed operations. Non-elective all-cause, infection-related, and different hospital 30-day re-admission rates were calculated, using All Patient Refined Diagnosis Related Groups codes. Multi-variable logistic regression identified risk factors for re-admission. RESULTS: Of 826,836 surviving to discharge, 39,281 (4.8%) had an unplanned re-admission within 30 days, occurring at a different hospital 20.5% of the time. The most common reason for re-admission was infection (25.1%). Orthopedic and spinal procedures were at highest risk for all-cause and infection-related different hospital re-admission. Infection-related different hospital re-admission risk factors included: Length of stay >30 days (odds ratio [OR] 2.28 [1.62-3.21], p < 0.01), age >=65 years (OR 1.56 [1.38-1.76], p < 0.01), and Charlson Comorbidity Index >1 (OR 1.14 [1.01-1.28], p < 0.01) and differed from predictors of same-hospital infectious re-admission. Non-elective surgical procedure (OR 0.79 [0.72-0.87], p < 0.01) and initial hospitalization at a large hospital (OR 0.66 [0.59-0.74], p < 0.01) were protective. CONCLUSION: A substantial proportion of post-operative re-admissions are missed by same hospital re-admission data. All-cause and infection-related post-operative re admissions to a different hospital are affected by unique patient and institution specific factors. Re-admission reduction programs, quality metrics, and policy based on same hospital re-admission data should be updated to incorporate different hospital re-admission. PMID- 29027890 TI - Corrigendum. PMID- 29027891 TI - Editorial Board - End-of-volume. PMID- 29027892 TI - The Lives of Older Lesbians: Sexuality, Identity and the Life Course. PMID- 29027893 TI - Hospital-acquired conditions: predictors and implications for outcomes following spine tumor resection. AB - OBJECTIVE Hospital-acquired conditions (HACs) significantly compromise patient safety, and have been identified by the Centers for Medicare and Medicaid Services as events that will be associated with penalties for surgeons. The mitigation of HACs must be an important consideration during the postoperative management of patients undergoing spine tumor resection. The purpose of this study was to identify the risk factors for HACs and to characterize the relationship between HACs and other postoperative adverse events following spine tumor resection. METHODS The 2008-2014 American College of Surgeons' National Surgical Quality Improvement Program database was used to identify adult patients undergoing the resection of intramedullary, intradural extramedullary, and extradural spine lesions via current procedural terminology and ICD-9 codes. Demographic, comorbidity, and operative variables were evaluated via bivariate statistics before being incorporated into a multivariable logistic regression model to identify the independent risk factors for HACs. Associations between HACs and other postoperative events, including death, readmission, prolonged length of stay, and various complications were determined through multivariable analysis while controlling for other significant variables. The c-statistic was computed to evaluate the predictive capacity of the regression models. RESULTS Of the 2170 patients included in the study, 195 (9.0%) developed an HAC. Only 2 perioperative variables, functional dependency and high body mass index, were risk factors for developing HACs (area under the curve = 0.654). Hospital acquired conditions were independent predictors of all examined outcomes and complications, including death (OR 2.26, 95% CI 1.24-4.11, p = 0.007), prolonged length of stay (OR 2.74, 95% CI 1.98-3.80, p < 0.001), and readmission (OR 9.16, 95% CI 6.27-13.37, p < 0.001). The areas under the curve for these models ranged from 0.750 to 0.917. CONCLUSIONS The comorbidities assessed in this study were not strongly predictive of HACs. Other variables, including hospital-associated factors, may play a role in the development of these conditions. The presence of an HAC was found to be an independent risk factor for a variety of adverse events. These findings highlight the need for continued development of evidence based protocols designed to reduce the incidence and severity of HACs. PMID- 29027894 TI - Editorial. The clinical and economic costs of treating cervical radiculopathy: the age-old question of the anterior versus posterior approach. PMID- 29027895 TI - Changes in foraminal area with anterior decompression versus keyhole foraminotomy in the cervical spine: a biomechanical investigation. AB - OBJECTIVE Anterior cervical discectomy and fusion (ACDF) with or without partial uncovertebral joint resection (UVR) and posterior keyhole foraminotomy are established operative procedures to treat cervical disc degeneration and radiculopathy. Studies have demonstrated reliable results with each procedure, but none have compared the change in neuroforaminal area between indirect and direct decompression techniques. The purpose of this study was to determine which cervical decompression method most consistently increases neuroforaminal area and how that area is affected by neck position. METHODS Eight human cervical functional spinal units (4 each of C5-6 and C6-7) underwent sequential decompression. Each level received the following surgical treatment: bilateral foraminotomy, ACDF, ACDF + partial UVR, and foraminotomy + ACDF. Multidirectional pure moment flexibility testing combined with 3D C-arm imaging was performed after each procedure to measure the minimum cross-sectional area of each foramen in 3 different neck positions: neutral, flexion, and extension. RESULTS Neuroforaminal area increased significantly with foraminotomy versus intact in all positions. These area measurements did not change in the ACDF group through flexion-extension. A significant decrease in area was observed for ACDF in extension (40 mm2) versus neutral (55 mm2). Foraminotomy + ACDF did not significantly increase area compared with foraminotomy in any position. The UVR procedure did not produce any changes in area through flexion-extension. CONCLUSIONS All procedures increased neuroforaminal area. Foraminotomy and foraminotomy + ACDF produced the greatest increase in area and also maintained the area in extension more than anterior-only procedures. The UVR procedure did not significantly alter the area compared with ACDF alone. With a stable cervical spine, foraminotomy may be preferable to directly decompress the neuroforamen; however, ACDF continues to play an important role for indirect decompression and decompression of more centrally located herniated discs. These findings pertain to bony stenosis of the neuroforamen and may not apply to soft disc herniation. The key points of this study are as follows. Both ACDF and foraminotomy increase the foraminal space. Foraminotomy was most successful in maintaining these increases during neck motion. Partial UVR was not a significant improvement over ACDF alone. Foraminotomy may be more efficient at decompressing the neuroforamen. Results should be taken into consideration only with stable spines. PMID- 29027896 TI - Molluscum contagiosum and pubic hair removal in male patients. PMID- 29027897 TI - Congenital syphilis in England and amendments to the BASHH guideline for management of affected infants. PMID- 29027898 TI - Surgery versus Antibiotics for Uncomplicated Appendicitis: Which Would a Medical Student Want? AB - BACKGROUND: Recent data suggest that treatment of acute, uncomplicated appendicitis (AUA) with antibiotics is as effective as surgery. A 2015 study indicated that more than 50% of patients would choose antibiotic therapy. Medical students represent a unique population of potential patients with greater medical knowledge than the general public and possibly less bias than practicing physicians. Therefore, we aimed to evaluate what the MEDICAL STUDENT'S treatment choice for AUA would be and what factors influence these decisions. METHODS: We conducted a survey of current medical students at a single institution. Survey data included demographics, interest in surgery or a procedure-related specialty, knowledge of and experience with surgery and antibiotics, and concerns about treatments. A summary of the literature regarding the efficacy and safety of antibiotics and surgery was presented. Each participant was asked which treatment he or she would choose if affected by AUA. RESULTS: A series of 255 medical students completed the survey (mean age 24.8 +/- 2.4 y; 51.5% female). The largest number of respondents (41.2%) were second-year students, and more than half (54.2%) reported an interest in a procedure-related specialty. Nearly all (93%) reported prior antibiotic use (19% reporting adverse effects), and 50% had prior surgery (20% reporting adverse events). When asked to identify concerns about each treatment choice, "surgical complications" was selected most frequently (82%) for surgery, and "adverse events and side effects" was selected most frequently for antibiotics (57%). When asked how they would treat their own AUA, 66.3% selected surgery, 24.3% selected antibiotics, and 9.4% were unsure. Race, gender, specialty of interest, year of training, and history of adverse effects related to antibiotics or surgery were not significantly related to treatment choice (all p > 0.1). CONCLUSION: When informed of the benefits and risks of surgery and antibiotics to treat AUA, medical students in our study were more likely to choose surgery. PMID- 29027899 TI - Metformin extends C. elegans lifespan through lysosomal pathway. AB - Metformin, a widely used first-line drug for treatment of type 2 diabetes (T2D), has been shown to extend lifespan and delay the onset of age-related diseases. However, its primary locus of action remains unclear. Using a pure in vitro reconstitution system, we demonstrate that metformin acts through the v-ATPase Ragulator lysosomal pathway to coordinate mTORC1 and AMPK, two hubs governing metabolic programs. We further show in Caenorhabditis elegans that both v-ATPase mediated TORC1 inhibition and v-ATPase-AXIN/LKB1-mediated AMPK activation contribute to the lifespan extension effect of metformin. Elucidating the molecular mechanism of metformin regulated healthspan extension will boost its therapeutic application in the treatment of human aging and age-related diseases. PMID- 29027900 TI - RNA polymerase II stalling at pre-mRNA splice sites is enforced by ubiquitination of the catalytic subunit. AB - Numerous links exist between co-transcriptional RNA processing and the transcribing RNAPII. In particular, pre-mRNA splicing was reported to be associated with slowed RNAPII elongation. Here, we identify a site of ubiquitination (K1246) in the catalytic subunit of RNAPII close to the DNA entry path. Ubiquitination was increased in the absence of the Bre5-Ubp3 ubiquitin protease complex. Bre5 binds RNA in vivo, with a preference for exon 2 regions of intron-containing pre-mRNAs and poly(A) proximal sites. Ubiquitinated RNAPII showed similar enrichment. The absence of Bre5 led to impaired splicing and defects in RNAPII elongation in vivo on a splicing reporter construct. Strains expressing RNAPII with a K1246R mutation showed reduced co-transcriptional splicing. We propose that ubiquinitation of RNAPII is induced by RNA processing events and linked to transcriptional pausing, which is released by Bre5-Ubp3 associated with the nascent transcript. PMID- 29027901 TI - Structure of RNA polymerase bound to ribosomal 30S subunit. AB - In bacteria, mRNA transcription and translation are coupled to coordinate optimal gene expression and maintain genome stability. Coupling is thought to involve direct interactions between RNA polymerase (RNAP) and the translational machinery. We present cryo-EM structures of E. coli RNAP core bound to the small ribosomal 30S subunit. The complex is stable under cell-like ionic conditions, consistent with functional interaction between RNAP and the 30S subunit. The RNA exit tunnel of RNAP aligns with the Shine-Dalgarno-binding site of the 30S subunit. Ribosomal protein S1 forms a wall of the tunnel between RNAP and the 30S subunit, consistent with its role in directing mRNAs onto the ribosome. The nucleic-acid-binding cleft of RNAP samples distinct conformations, suggesting different functional states during transcription-translation coupling. The architecture of the 30S*RNAP complex provides a structural basis for co localization of the transcriptional and translational machineries, and inform future mechanistic studies of coupled transcription and translation. PMID- 29027902 TI - Independent manipulation of histone H3 modifications in individual nucleosomes reveals the contributions of sister histones to transcription. AB - Histone tail modifications can greatly influence chromatin-associated processes. Asymmetrically modified nucleosomes exist in multiple cell types, but whether modifications on both sister histones contribute equally to chromatin dynamics remains elusive. Here, we devised a bivalent nucleosome system that allowed for the constitutive assembly of asymmetrically modified sister histone H3s in nucleosomes in Saccharomyces cerevisiae. The sister H3K36 methylations independently affected cryptic transcription in gene coding regions, whereas sister H3K79 methylation had cooperative effects on gene silencing near telomeres. H3K4 methylation on sister histones played an independent role in suppressing the recruitment of Gal4 activator to the GAL1 promoter and in inhibiting GAL1 transcription. Under starvation stress, sister H3K4 methylations acted cooperatively, independently or redundantly to regulate transcription. Thus, we provide a unique tool for comparing symmetrical and asymmetrical modifications of sister histone H3s in vivo. PMID- 29027904 TI - Self-assembly of model proteins into virus capsids. AB - We consider self-assembly of proteins into a virus capsid by the methods of molecular dynamics. The capsid corresponds either to SPMV or CCMV and is studied with and without the RNA molecule inside. The proteins are flexible and described by the structure-based coarse-grained model augmented by electrostatic interactions. Previous studies of the capsid self-assembly involved solid objects of a supramolecular scale, e.g. corresponding to capsomeres, with engineered couplings and stochastic movements. In our approach, a single capsid is dissociated by an application of a high temperature for a variable period and then the system is cooled down to allow for self-assembly. The restoration of the capsid proceeds to various extent, depending on the nature of the dissociated state, but is rarely complete because some proteins depart too far unless the process takes place in a confined space. PMID- 29027905 TI - Electron transport and room temperature single-electron charging in 10 nm scale PtC nanostructures formed by electron beam induced deposition. AB - Nanostructures of platinum-carbon nanocomposite material have been formed by electron-beam induced deposition. These consist of nanodots and nanowires with a minimum size ~20 nm, integrated within ~100 nm nanogap n-type silicon-on insulator transistor structures. The nanodot transistors use ~20 nm Pt/C nanodots, tunnel-coupled to Pt/C nanowire electrodes, bridging the Si nanogaps. Room-temperature single-electron transistor operation has been measured, and single-electron current oscillations and 'Coulomb diamonds' observed. In nanowire transistors, the temperature dependence from 290 to 8 K suggests that the current is a combination of thermally activated and tunnelling transport of carriers across potential barriers along the current path, and that the Pt/C is p-type at low temperature. PMID- 29027903 TI - Functional dichotomy in spinal- vs prefrontal-projecting locus coeruleus modules splits descending noradrenergic analgesia from ascending aversion and anxiety in rats. AB - The locus coeruleus (LC) projects throughout the brain and spinal cord and is the major source of central noradrenaline. It remains unclear whether the LC acts functionally as a single global effector or as discrete modules. Specifically, while spinal-projections from LC neurons can exert analgesic actions, it is not known whether they can act independently of ascending LC projections. Using viral vectors taken up at axon terminals, we expressed chemogenetic actuators selectively in LC neurons with spinal (LC:SC) or prefrontal cortex (LC:PFC) projections. Activation of the LC:SC module produced robust, lateralised anti nociception while activation of LC:PFC produced aversion. In a neuropathic pain model, LC:SC activation reduced hind-limb sensitisation and induced conditioned place preference. By contrast, activation of LC:PFC exacerbated spontaneous pain, produced aversion and increased anxiety-like behaviour. This independent, contrasting modulation of pain-related behaviours mediated by distinct noradrenergic neuronal populations provides evidence for a modular functional organisation of the LC. PMID- 29027906 TI - Directed assembly-based printing of homogeneous and hybrid nanorods using dielectrophoresis. AB - Printing nano and microscale three-dimensional (3D) structures using directed assembly of nanoparticles has many potential applications in electronics, photonics and biotechnology. This paper presents a reproducible and scalable 3D dielectrophoresis assembly process for printing homogeneous silica and hybrid silica/gold nanorods from silica and gold nanoparticles. The nanoparticles are assembled into patterned vias under a dielectrophoretic force generated by an alternating current (AC) field, and then completely fused in situ to form nanorods. The assembly process is governed by the applied AC voltage amplitude and frequency, pattern geometry, and assembly time. Here, we find out that complete assembly of nanorods is not possible without applying both dielectrophoresis and electrophoresis. Therefore, a direct current offset voltage is used to add an additional electrophoretic force to the assembly process. The assembly can be precisely controlled to print silica nanorods with diameters from 20-200 nm and spacing from 500 nm to 2 MUm. The assembled nanorods have good uniformity in diameter and height over a millimeter scale. Besides homogeneous silica nanorods, hybrid silica/gold nanorods are also assembled by sequentially assembling silica and gold nanoparticles. The precision of the assembly process is further demonstrated by assembling a single particle on top of each nanorod to demonstrate an additional level of functionalization. The assembled hybrid silica/gold nanorods have potential to be used for metamaterial applications that require nanoscale structures as well as for plasmonic sensors for biosensing applications. PMID- 29027907 TI - Negative thermophoresis of nanoparticles interacting with fluids through a purely repulsive potential. AB - Thermophoretic forces acting on nanoparticles are investigated using molecular dynamics simulation. We assume the Lennard-Jones (LJ) potential for the interaction between fluid molecules. On the other hand, the interaction between the nanoparticle and the surrounding fluid molecules are assumed to be either LJ or Weeks-Chandler-Andersen (WCA) potential, where the latter is purely-repulsive. The effect of the interaction potential on the thermophoretic force is investigated for various situations. It is found that the thermophoretic force basically acts in the direction from the hotter side to the colder side of the nanoparticle. However, when the surrounding fluid is in the liquid phase, the force acts in the reversed direction for the case of the WCA potential. It is clarified that the sign reversal is caused by the different structures observed in the distribution of repulsive forces acting on the nanoparticle. PMID- 29027908 TI - Large energy storage efficiency of the dielectric layer of graphene nanocapacitors. AB - Electric capacitors are commonly used in electronic circuits for the short-term storage of small amounts of energy. It is desirable however to use capacitors to store much larger energy amounts to replace rechargeable batteries. Unfortunately existing capacitors cannot store sufficient energy to be able to replace common electrochemical energy storage systems. Here we examine the energy storage capabilities of graphene nanocapacitors, which are tri-layer devices involving an Al film, Al2O3 dielectric layer, and a single layer of carbon atoms, i.e., graphene. This is a purely electronic capacitor and therefore it can function in a wide temperature interval. The capacitor shows a high dielectric breakdown electric field strength, of the order of 1000 kV mm-1 (i.e., 1 GV m-1), which is much larger than the table value of the Al2O3 dielectric strength. The corresponding energy density is 10-100 times larger than the energy density of a common electrolytic capacitor. Moreover, we discover that the amount of charge stored in the dielectric layer can be equal or can even exceed the amount of charge stored on the capacitor plates. The dielectric discharge current follows a power-law time dependence. We suggest a model to explain this behavior. PMID- 29027909 TI - Cytotoxicity and cellular uptake of different sized gold nanoparticles in ovarian cancer cells. AB - Nanomedicine has advanced the biomedical field with the availability of multifunctional nanoparticles (NPs) systems that can target a disease site enabling drug delivery and helping to monitor the disease. In this paper, we synthesised the gold nanoparticles (AuNPs) with an average size 18, 40, 60 and 80 nm, and studied the effect of nanoparticles size, concentration and incubation time on ovarian cancer cells namely, OVCAR5, OVCAR8, and SKOV3. The size measured by transmission electron microscopy images was slightly smaller than the hydrodynamic diameter; measured size by ImageJ as 14.55, 38.13, 56.88 and 78.56 nm. The cellular uptake was significantly controlled by the AuNPs size, concentration, and the cell type. The nanoparticles uptake increased with increasing concentration, and 18 and 80 nm AuNPs showed higher uptake ranging from 1.3 to 5.4 MUg depending upon the concentration and cell type. The AuNPs were associated with a temporary reduction in metabolic activity, but metabolic activity remained more than 60% for all sample types; NPs significantly affected the cell proliferation activity in first 12 h. The increase in nanoparticle size and concentration induced the production of reactive oxygen species in 24 h. PMID- 29027910 TI - A LQR-Based Controller with Estimation of Road Bank for Improving Vehicle Lateral and Rollover Stability via Active Suspension. AB - In this article, a Linear Quadratic Regulator (LQR) lateral stability and rollover controller has been developed including as the main novelty taking into account the road bank angle and using exclusively active suspension for both lateral stability and rollover control. The main problem regarding the road bank is that it cannot be measured by means of on-board sensors. The solution proposed in this article is performing an estimation of this variable using a Kalman filter. In this way, it is possible to distinguish between the road disturbance component and the vehicle's roll angle. The controller's effectiveness has been tested by means of simulations carried out in TruckSim, using an experimentally validated vehicle model. Lateral load transfer, roll angle, yaw rate and sideslip angle have been analyzed in order to quantify the improvements achieved on the behavior of the vehicle. For that purpose, these variables have been compared with the results obtained from both a vehicle that uses passive suspension and a vehicle using a fuzzy logic controller. PMID- 29027911 TI - Outlier Detection for Sensor Systems (ODSS): A MATLAB Macro for Evaluating Microphone Sensor Data Quality. AB - Microphone sensor systems provide information that may be used for a variety of applications. Such systems generate large amounts of data. One concern is with microphone failure and unusual values that may be generated as part of the information collection process. This paper describes methods and a MATLAB graphical interface that provides rapid evaluation of microphone performance and identifies irregularities. The approach and interface are described. An application to a microphone array used in a wind tunnel is used to illustrate the methodology. PMID- 29027914 TI - Fabrication and Characterization of a Stabilized Thin Film Ag/AgCl Reference Electrode Modified with Self-Assembled Monolayer of Alkane Thiol Chains for Rapid Biosensing Applications. AB - The fabrication of miniaturized electrical biosensing devices can enable the rapid on-chip detection of biomarkers such as miRNA molecules, which is highly important in early-stage cancer detection. The challenge in realizing such devices remains in the miniaturization of the reference electrodes, which is an integral part of electrical detection. Here, we report on a novel thin film Ag/AgCl reference electrode (RE) that has been fabricated on top of a Au sputtered glass surface, which was coated with a self-assembled monolayer (SAM) of 6-mercepto-1-hexanol (MCH). The electrode showed very little measurement deviation (-1.5 mv) from a commercial Ag/AgCl reference electrode and exhibited a potential drift of only +/- 0.2 mV/h. In addition, the integration of this SAM modified microfabricated thin film RE enabled the rapid detection (<30 min) of miRNA (let-7a). The electrode can be integrated seamlessly into a microfluidic device, allowing the highly stable and fast measurement of surface potential and is expected to be very useful for the development of miniature electrical biosensors. PMID- 29027913 TI - Neural Hyperexcitability in Autism Spectrum Disorders. AB - Despite the progress that has been made in research on autism spectrum disorders (ASD), the understanding of the biological basis of ASD to identify targets for novel, effective treatment remains limited. One of the leading biological theories of autism is a model of cortical hyperexcitability. While numerous genetic and epigenetic studies support this model, how this particular biological alteration relates to known phenotypes in ASD is not well established. Using examples of sensory processing alterations, this review illustrates how cortical excitability may affect neural processes to result eventually in some core clinical phenotypes in ASD. Applications of the cortical excitability model for translational research and drug development are also discussed. PMID- 29027912 TI - Guanidinium Toxins and Their Interactions with Voltage-Gated Sodium Ion Channels. AB - Guanidinium toxins, such as saxitoxin (STX), tetrodotoxin (TTX) and their analogs, are naturally occurring alkaloids with divergent evolutionary origins and biogeographical distribution, but which share the common chemical feature of guanidinium moieties. These guanidinium groups confer high biological activity with high affinity and ion flux blockage capacity for voltage-gated sodium channels (NaV). Members of the STX group, known collectively as paralytic shellfish toxins (PSTs), are produced among three genera of marine dinoflagellates and about a dozen genera of primarily freshwater or brackish water cyanobacteria. In contrast, toxins of the TTX group occur mainly in macrozoa, particularly among puffer fish, several species of marine invertebrates and a few terrestrial amphibians. In the case of TTX and analogs, most evidence suggests that symbiotic bacteria are the origin of the toxins, although endogenous biosynthesis independent from bacteria has not been excluded. The evolutionary origin of the biosynthetic genes for STX and analogs in dinoflagellates and cyanobacteria remains elusive. These highly potent molecules have been the subject of intensive research since the latter half of the past century; first to study the mode of action of their toxigenicity, and later as tools to characterize the role and structure of NaV channels, and finally as therapeutics. Their pharmacological activities have provided encouragement for their use as therapeutants for ion channel-related pathologies, such as pain control. The functional role in aquatic and terrestrial ecosystems for both groups of toxins is unproven, although plausible mechanisms of ion channel regulation and chemical defense are often invoked. Molecular approaches and the development of improved detection methods will yield deeper understanding of their physiological and ecological roles. This knowledge will facilitate their further biotechnological exploitation and point the way towards development of pharmaceuticals and therapeutic applications. PMID- 29027916 TI - A Next-Generation Sequencing Approach Uncovers Viral Transcripts Incorporated in Poxvirus Virions. AB - Transcripts are known to be incorporated in particles of DNA viruses belonging to the families of Herpesviridae and Mimiviridae, but the presence of transcripts in other DNA viruses, such as poxviruses, has not been analyzed yet. Therefore, we first established a next-generation-sequencing (NGS)-based protocol, enabling the unbiased identification of transcripts in virus particles. Subsequently, we applied our protocol to analyze RNA in an emerging zoonotic member of the Poxviridae family, namely Cowpox virus. Our results revealed the incorporation of 19 viral transcripts, while host identifications were restricted to ribosomal and mitochondrial RNA. Most viral transcripts had an unknown and immunomodulatory function, suggesting that transcript incorporation may be beneficial for poxvirus immune evasion. Notably, the most abundant transcript originated from the D5L/I1R gene that encodes a viral inhibitor of the host cytoplasmic DNA sensing machinery. PMID- 29027915 TI - A Combination of Immune Checkpoint Inhibition with Metronomic Chemotherapy as a Way of Targeting Therapy-Resistant Cancer Cells. AB - Therapeutic resistance remains a major obstacle in treating many cancers, particularly in advanced stages. It is likely that cytotoxic lymphocytes (CTLs) have the potential to eliminate therapy-resistant cancer cells. However, their effectiveness may be limited either by the immunosuppressive tumor microenvironment, or by immune cell death induced by cytotoxic treatments. High frequency low-dose (also known as metronomic) chemotherapy can help improve the activity of CTLs by providing sufficient stimulation for cytotoxic immune cells without excessive depletion. Additionally, therapy-induced removal of tumor cells that compete for shared nutrients may also facilitate tumor infiltration by CTLs, further improving prognosis. Metronomic chemotherapy can also decrease the number of immunosuppressive cells in the tumor microenvironment, including regulatory T cells (Tregs) and myeloid-derived suppressor cells (MDSCs). Immune checkpoint inhibition can further augment anti-tumor immune responses by maintaining T cells in an activated state. Combining immune checkpoint inhibition with metronomic administration of chemotherapeutic drugs may create a synergistic effect that augments anti-tumor immune responses and clears metabolic competition. This would allow immune-mediated elimination of therapy-resistant cancer cells, an effect that may be unattainable by using either therapeutic modality alone. PMID- 29027917 TI - Porcine Dental Epithelial Cells Differentiated in a Cell Sheet Constructed by Magnetic Nanotechnology. AB - Magnetic nanoparticles (MNPs) are widely used in medical examinations, treatments, and basic research, including magnetic resonance imaging, drug delivery systems, and tissue engineering. In this study, MNPs with magnetic force were applied to tissue engineering for dental enamel regeneration. The internalization of MNPs into the odontogenic cells was observed by transmission electron microscopy. A combined cell sheet consisting of dental epithelial cells (DECs) and dental mesenchymal cells (DMCs) (CC sheet) was constructed using magnetic force-based tissue engineering technology. The result of the iron staining indicated that MNPs were distributed ubiquitously over the CC sheet. mRNA expression of enamel differentiation and basement membrane markers was examined in the CC sheet. Immunostaining showed Collagen IV expression at the border region between DEC and DMC layers in the CC sheet. These results revealed that epithelial-mesenchymal interactions between DEC and DMC layers were caused by bringing DECs close to DMCs mechanically by magnetic force. Our study suggests that the microenvironment in the CC sheet might be similar to that during the developmental stage of a tooth bud. In conclusion, a CC sheet employing MNPs could be developed as a novel and unique graft for artificially regenerating dental enamel. PMID- 29027918 TI - Temperature Influences the Production and Transport of Saxitoxin and the Expression of sxt Genes in the Cyanobacterium Aphanizomenon gracile. AB - The cyanobacterium Aphanizomenon gracile is the most widely distributed producer of the potent neurotoxin saxitoxin in freshwaters. In this work, total and extracellular saxitoxin and the transcriptional response of three genes linked to saxitoxin biosynthesis (sxtA) and transport (sxtM, sxtPer) were assessed in Aphanizomenon gracile UAM529 cultures under temperatures covering its annual cycle (12 degrees C, 23 degrees C, and 30 degrees C). Temperature influenced saxitoxin production being maximum at high temperatures (30 degrees C) above the growth optimum (23 degrees C), concurring with a 4.3-fold increased sxtA expression at 30 degrees C. Extracellular saxitoxin transport was temperature dependent, with maxima at extremes of temperature (12 degrees C with 16.9% extracellular saxitoxin; and especially 30 degrees C with 53.8%) outside the growth optimum (23 degrees C), coinciding with a clear upregulation of sxtM at both 12 degrees C and 30 degrees C (3.8-4.1 fold respectively), and yet with just a slight upregulation of sxtPer at 30 degrees C (2.1-fold). Nitrate depletion also induced a high extracellular saxitoxin release (51.2%), although without variations of sxtM and sxtPer transcription, and showing evidence of membrane damage. This is the first study analysing the transcriptional response of sxtPer under environmental gradients, as well as the effect of temperature on putative saxitoxin transporters (sxtM and sxtPer) in cyanobacteria in general. PMID- 29027920 TI - Fingertip Fiber Optical Tactile Array with Two-Level Spring Structure. AB - Tactile perception is a feature benefiting reliable grasping and manipulation. This paper presents the design of an integrated fingertip force sensor employing an optical fiber based approach where applied forces modulate light intensity. The proposed sensor system is developed to support grasping of a broad range of objects, including those that are hard as well those that are soft. The sensor system is comprised of four sensing elements forming a tactile array integrated with the tip of a finger. We investigate the design configuration of a separate force sensing element with the aim to improve its measurement range. The force measurement of a single tactile element is based on a two-level displacement that is achieved thanks to a hybrid sensing structure made up of a stiff linear and flexible ortho-planar spring. An important outcome of this paper is a miniature tactile fingertip sensor that is capable of perceiving light contact, typically occurring during the initial stages of a grasp, as well as measuring higher forces, commonly present during tight grasps. PMID- 29027921 TI - Binding Direction-Based Two-Dimensional Flattened Contact Area Computing Algorithm for Protein-Protein Interactions. AB - Interactions between protein molecules are essential for the assembly, function, and regulation of proteins. The contact region between two protein molecules in a protein complex is usually complementary in shape for both molecules and the area of the contact region can be used to estimate the binding strength between two molecules. Although the area is a value calculated from the three-dimensional surface, it cannot represent the three-dimensional shape of the surface. Therefore, we propose an original concept of two-dimensional contact area which provides further information such as the ruggedness of the contact region. We present a novel algorithm for calculating the binding direction between two molecules in a protein complex, and then suggest a method to compute the two dimensional flattened area of the contact region between two molecules based on the binding direction. PMID- 29027919 TI - Shiga Toxins Induce Apoptosis and ER Stress in Human Retinal Pigment Epithelial Cells. AB - Shiga toxins (Stxs) produced by Shiga toxin-producing bacteria Shigella dysenteriae serotype 1 and select serotypes of Escherichia coli are the most potent known virulence factors in the pathogenesis of hemorrhagic colitis progressing to potentially fatal systemic complications such as acute renal failure, blindness and neurological abnormalities. Although numerous studies have defined apoptotic responses to Shiga toxin type 1 (Stx1) or Shiga toxin type 2 (Stx2) in a variety of cell types, the potential significance of Stx-induced apoptosis of photoreceptor and pigmented cells of the eye following intoxication is unknown. We explored the use of immortalized human retinal pigment epithelial (RPE) cells as an in vitro model of Stx-induced retinal damage. To the best of our knowledge, this study is the first report that intoxication of RPE cells with Stxs activates both apoptotic cell death signaling and the endoplasmic reticulum (ER) stress response. Using live-cell imaging analysis, fluorescently labeled Stx1 or Stx2 were internalized and routed to the RPE cell endoplasmic reticulum. RPE cells were significantly sensitive to wild type Stxs by 72 h, while the cells survived challenge with enzymatically deficient mutant toxins (Stx1A- or Stx2A-). Upon exposure to purified Stxs, RPE cells showed activation of a caspase dependent apoptotic program involving a reduction of mitochondrial transmembrane potential (Deltapsim), increased activation of ER stress sensors IRE1, PERK and ATF6, and overexpression CHOP and DR5. Finally, we demonstrated that treatment of RPE cells with Stxs resulted in the activation of c-Jun N-terminal kinase (JNK) and p38 mitogen-activated protein kinase (p38MAPK), suggesting that the ribotoxic stress response may be triggered. Collectively, these data support the involvement of Stx-induced apoptosis in ocular complications of intoxication. The evaluation of apoptotic responses to Stxs by cells isolated from multiple organs may reveal unique functional patterns of the cytotoxic actions of these toxins in the systemic complications that follow ingestion of toxin-producing bacteria. PMID- 29027922 TI - The Detection of Water Flow in Rectangular Microchannels by Terahertz Time Domain Spectroscopy. AB - Flow characteristics of water were tested in a rectangular microchannel for Reynolds number (Re) between 0 and 446 by terahertz time domain spectroscopy (THz TDS). Output THz peak trough intensities and the calculated absorbances of the flow were analyzed theoretically. The results show a rapid change for Re < 250 and a slow change as Re increases, which is caused by the early transition from laminar to transition flow beginning nearly at Re = 250. Then this finding is confirmed in the plot of the flow resistant. Our results demonstrate that the THz TDS could be a valuable tool to monitor and character the flow performance in microscale structures. PMID- 29027923 TI - Plasmonic Nanomaterial-Based Optical Biosensing Platforms for Virus Detection. AB - Plasmonic nanomaterials (P-NM) are receiving attention due to their excellent properties, which include surface-enhanced Raman scattering (SERS), localized surface plasmon resonance (LSPR) effects, plasmonic resonance energy transfer (PRET), and magneto optical (MO) effects. To obtain such plasmonic properties, many nanomaterials have been developed, including metal nanoparticles (MNP), bimetallic nanoparticles (bMNP), MNP-decorated carbon nanotubes, (MNP-CNT), and MNP-modified graphene (MNP-GRP). These P-NMs may eventually be applied to optical biosensing systems due to their unique properties. Here, probe biomolecules, such as antibodies (Ab), probe DNA, and probe aptamers, were modified on the surface of plasmonic materials by chemical conjugation and thiol chemistry. The optical property change in the plasmonic nanomaterials was monitored based on the interaction between the probe biomolecules and target virus. After bioconjugation, several optical properties, including fluorescence, plasmonic absorbance, and diffraction angle, were changed to detect the target biomolecules. This review describes several P-NMs as potential candidates of optical sensing platforms and introduces various applications in the optical biosensing field. PMID- 29027925 TI - Multiscale Modeling of Polycrystalline NiTi Shape Memory Alloy under Various Plastic Deformation Conditions by Coupling Microstructure Evolution and Macroscopic Mechanical Response. AB - Numerical modeling of microstructure evolution in various regions during uniaxial compression and canning compression of NiTi shape memory alloy (SMA) are studied through combined macroscopic and microscopic finite element simulation in order to investigate plastic deformation of NiTi SMA at 400 degrees C. In this approach, the macroscale material behavior is modeled with a relatively coarse finite element mesh, and then the corresponding deformation history in some selected regions in this mesh is extracted by the sub-model technique of finite element code ABAQUS and subsequently used as boundary conditions for the microscale simulation by means of crystal plasticity finite element method (CPFEM). Simulation results show that NiTi SMA exhibits an inhomogeneous plastic deformation at the microscale. Moreover, regions that suffered canning compression sustain more homogeneous plastic deformation by comparison with the corresponding regions subjected to uniaxial compression. The mitigation of inhomogeneous plastic deformation contributes to reducing the statistically stored dislocation (SSD) density in polycrystalline aggregation and also to reducing the difference of stress level in various regions of deformed NiTi SMA sample, and therefore sustaining large plastic deformation in the canning compression process. PMID- 29027926 TI - Nanocomposites for Machining Tools. AB - Machining tools are used in many areas of production. To a considerable extent, the performance characteristics of the tools determine the quality and cost of obtained products. The main materials used for producing machining tools are steel, cemented carbides, ceramics and superhard materials. A promising way to improve the performance characteristics of these materials is to design new nanocomposites based on them. The application of micromechanical modeling during the elaboration of composite materials for machining tools can reduce the financial and time costs for development of new tools, with enhanced performance. This article reviews the main groups of nanocomposites for machining tools and their performance. PMID- 29027924 TI - Anti-Salmonella Activity Modulation of Mastoparan V1-A Wasp Venom Toxin-Using Protease Inhibitors, and Its Efficient Production via an Escherichia coli Secretion System. AB - A previous study highlighted that mastoparan V1 (MP-V1), a mastoparan from the venom of the social wasp Vespula vulgaris, is a potent antimicrobial peptide against Salmonella infection, which causes enteric diseases. However, there exist some limits for its practical application due to the loss of its activity in an increased bacterial density and the difficulty of its efficient production. In this study, we first modulated successfully the antimicrobial activity of synthetic MP-V1 against an increased Salmonella population using protease inhibitors, and developed an Escherichia coli secretion system efficiently producing active MP-V1. The protease inhibitors used, except pepstatin A, significantly increased the antimicrobial activity of the synthetic MP-V1 at minimum inhibitory concentrations (determined against 106 cfu/mL of population) against an increased population (108 cfu/mL) of three different Salmonella serotypes, Gallinarum, Typhimurium and Enteritidis. Meanwhile, the E. coli strain harboring OmpA SS::MP-V1 was identified to successfully secrete active MP-V1 into cell-free supernatant, whose antimicrobial activity disappeared in the increased population (108 cfu/mL) of Salmonella Typhimurium recovered by adding a protease inhibitor cocktail. Therefore, it has been concluded that our challenge using the E. coli secretion system with the protease inhibitors is an attractive strategy for practical application of peptide toxins, such as MP-V1. PMID- 29027927 TI - Conotoxins as Tools to Understand the Physiological Function of Voltage-Gated Calcium (CaV) Channels. AB - Voltage-gated calcium (CaV) channels are widely expressed and are essential for the completion of multiple physiological processes. Close regulation of their activity by specific inhibitors and agonists become fundamental to understand their role in cellular homeostasis as well as in human tissues and organs. CaV channels are divided into two groups depending on the membrane potential required to activate them: High-voltage activated (HVA, CaV1.1-1.4; CaV2.1-2.3) and Low voltage activated (LVA, CaV3.1-3.3). HVA channels are highly expressed in brain (neurons), heart, and adrenal medulla (chromaffin cells), among others, and are also classified into subtypes which can be distinguished using pharmacological approaches. Cone snails are marine gastropods that capture their prey by injecting venom, "conopeptides", which cause paralysis in a few seconds. A subset of conopeptides called conotoxins are relatively small polypeptides, rich in disulfide bonds, that target ion channels, transporters and receptors localized at the neuromuscular system of the animal target. In this review, we describe the structure and properties of conotoxins that selectively block HVA calcium channels. We compare their potency on several HVA channel subtypes, emphasizing neuronal calcium channels. Lastly, we analyze recent advances in the therapeutic use of conotoxins for medical treatments. PMID- 29027928 TI - Automated Epileptic Seizure Detection Based on Wearable ECG and PPG in a Hospital Environment. AB - Electrocardiography has added value to automatically detect seizures in temporal lobe epilepsy (TLE) patients. The wired hospital system is not suited for a long term seizure detection system at home. To address this need, the performance of two wearable devices, based on electrocardiography (ECG) and photoplethysmography (PPG), are compared with hospital ECG using an existing seizure detection algorithm. This algorithm classifies the seizures on the basis of heart rate features, extracted from the heart rate increase. The algorithm was applied to recordings of 11 patients in a hospital setting with 701 h capturing 47 (fronto )temporal lobe seizures. The sensitivities of the hospital system, the wearable ECG device and the wearable PPG device were respectively 57%, 70% and 32%, with corresponding false alarms per hour of 1.92, 2.11 and 1.80. Whereas seizure detection performance using the wrist-worn PPG device was considerably lower, the performance using the wearable ECG is proven to be similar to that of the hospital ECG. PMID- 29027930 TI - Bioactive Coating with Two-Layer Hierarchy of Relief Obtained by Sol-Gel Method with Shock Drying and Osteoblast Response of Its Structure. AB - In this work, we analyze the efficiency of the modification of the implant surface. This modification was reached by the formation of a two-level relief hierarchy by means of a sol-gel approach that included dip coating with subsequent shock drying. Using this method, we fabricated a nanoporous layer with micron-sized defects on the nanotitanium surface. The present work continues an earlier study by our group, wherein the effect of osteoblast-like cell adhesion acceleration was found. In the present paper, we give the results of more detailed evaluation of coating efficiency. Specifically, cytological analysis was performed that included the study of the marker levels of osteoblast-like cell differentiation. We found a significant increase in the activity of alkaline phosphatase at the initial incubation stage. This is very important for implantation, since such an effect assists the decrease in the induction time of implant engraftment. Moreover, osteopontin expression remains high for long expositions. This indicates a prolonged osteogenic effect in the coating. The results suggest the acceleration of the pre-implant area mineralization and, correspondingly, the potential use of the developed coatings for bone implantation. PMID- 29027929 TI - Procyanidin B2 Protects Neurons from Oxidative, Nitrosative, and Excitotoxic Stress. AB - The aberrant generation of oxygen and nitrogen free radicals can cause severe damage to key cellular components, resulting in cell apoptosis. Similarly, excitotoxicity leads to protease activation and mitochondrial dysfunction, which subsequently causes cell death. Each of these factors play critical roles in the neuronal cell death underlying various neurodegenerative diseases. Procyanidin B2 (PB2) is a naturally occurring polyphenolic compound found in high concentrations in cocoa, apples, and grapes. Here, we examine the neuroprotective effects of PB2 in primary cultures of rat cerebellar granule neurons (CGNs) exposed to various stressors. CGNs were pre-incubated with PB2 and then neuronal stress was induced as described below. Mitochondrial oxidative stress was triggered with HA14-1, an inhibitor of the pro-survival Bcl-2 protein which induces glutathione-sensitive apoptosis. Glutamate and glycine were used to induce excitotoxicity. Sodium nitroprusside, a nitric oxide generating compound, was used to induce nitrosative stress. We observed significant dose-dependent protection of CGNs with PB2 for all of the above insults, with the greatest neuroprotective effect being observed under conditions of nitrosative stress. Intriguingly, the neuroprotective effect of PB2 against nitric oxide was superoxide-dependent, as we have recently shown for other catechol antioxidants. Finally, we induced neuronal stress through the removal of depolarizing extracellular potassium and serum (5K conditions), which is a classical model of intrinsic apoptosis in CGNs. PB2 did not display any significant protection against 5K-induced apoptosis at any concentration tested. We conclude that PB2 offers neuronal protection principally as an antioxidant by scavenging reactive oxygen and nitrogen species instead of through modulation of pro-survival cell signaling pathways. These findings suggest that PB2 may be an effective neuroprotective agent for the treatment of neurodegenerative disorders. PMID- 29027931 TI - Discovering the Biological Target of 5-epi-Sinuleptolide Using a Combination of Proteomic Approaches. AB - Sinuleptolide and its congeners are diterpenes with a norcembranoid skeleton isolated from the soft coral genus Sinularia. These marine metabolites are endowed with relevant biological activities, mainly associated with cancer development. 5-epi-sinuleptolide has been selected as a candidate for target discovery studies through the application of complementary proteomic approaches. Specifically, a combination of conventional chemical proteomics based on affinity chromatography, coupled with high-resolution mass spectrometry and bioinformatics, as well as drug affinity responsive target stability (DARTS), led to a clear identification of actins as main targets for 5-epi-sinuleptolide. Subsequent in-cell assays, performed with cytochalasin D as reference compound, gave information on the ability of 5-epi-sinuleptolide to disrupt the actin cytoskeleton by loss of actin fibers and formation of F-actin amorphous aggregates. These results suggest the potential application of 5-epi sinuleptolide as a useful tool in the study of the molecular processes impaired in several disorders in which actin is thought to play an essential role. PMID- 29027932 TI - Peer Victimization among Classmates-Associations with Students' Internalizing Problems, Self-Esteem, and Life Satisfaction. AB - Bullying is a major problem in schools and a large number of studies have demonstrated that victims have a high excess risk of poor mental health. It may however also affect those who are not directly victimized by peers. The present study investigates whether peer victimization among classmates is linked to internalizing problems, self-esteem, and life satisfaction at the individual level, when the student's own victimization has been taken into account. The data were derived from the first wave of the Swedish part of Youth in Europe Study (YES!), including information on 4319 students in grade 8 (14-15 years of age) distributed across 242 classes. Results from multilevel analyses show a significant association between classes with a high proportion of students being victimized and higher levels of internalizing problems, lower self-esteem, and lower life satisfaction at the student level. This association holds when the student's own victimization has been taken into account. This suggests that peer victimization negatively affects those who are directly exposed, as well as their classmates. We conclude that efficient methods and interventions to reduce bullying in school are likely to benefit not only those who are victimized, but all students. PMID- 29027933 TI - DPPH Radical Scavenging and Postprandial Hyperglycemia Inhibition Activities and Flavonoid Composition Analysis of Hawk Tea by UPLC-DAD and UPLC-Q/TOF MSE. AB - Hawk tea (Litsea coreana Levl. var. Lanuginosa (Migo) Yen C. Yang & P.H. Huang), a very popular herbal tea material, has attracted more and more attention due to its high antioxidant properties and possible therapeutic effect on type II diabetes mellitus. The raw materials of Hawk tea are usually divided into three kinds: bud tea (BT), primary leaf tea (PLT) and mature leaf tea (MLT). In this study, the DPPH radical scavenging activity and the antimicrobial properties of these three kinds of Hawk tea from different regions were comparatively investigated, and a ultra-high performance liquid chromatographic coupled with a photodiode array detector (UPLC-DAD) method was employed for comparison of the three major flavonoid constituents, including hyperoside, isoquercitrin and astragalin, in different samples of Hawk tea. At the same time, the effect of methanol extract (ME) of PLT on the mouse postprandial blood glucose and the effect of ME and its different fractions (petroleum ether fraction (PE), ethyl acetate fraction (EA), n-butanol fraction (n-BuOH), and water fraction (WF)) on the activity of alpha-glucosidase were studied. The results showed that Hawk BT and Hawk PLT possessed the higher radicals scavenging activity than Hawk MLT, while the antibacterial activity against P. vulgaris of PLT and MLT was higher than Hawk BT. The contents of the three major flavonoid constituents in samples of Hawk PLT are higher than Hawk BT and Hawk MLT. The mouse postprandial blood glucose levels of the middle dose (0.5 g/kg) group and the high dose (1 g/kg) group with oral administration of the ME of PLT were significantly lower than the control group. What's more, the inhibitory effect of ME of PLT and its EA and n BuOH fractions on alpha-glucosidase was significantly higher than that of acarbose. Rapid ultra-high performance liquid chromatography/quadrupole time-of flight-mass spectrometry (UPLC-ESI-QTOF-MS) was used to identify the flavonoids in Hawk PLT, and a total of 20 flavonoids were identified or tentatively identified by comparing their retention times and accurate mass measurements with reference compounds or literature data. The bioactive flavonoid composition and DPPH radical scavenging activities present in different Hawk tea raw materials are quite different due to the different ontogenesis of these raw materials. Further studies on PLT showed that the substances in PLT ME could reduce the level of mouse postprandial blood glucose through inhibiting the activity of alpha-glucosidase. PMID- 29027935 TI - Robust Stereo Visual Odometry Using Improved RANSAC-Based Methods for Mobile Robot Localization. AB - In this paper, we present a novel approach for stereo visual odometry with robust motion estimation that is faster and more accurate than standard RANSAC (Random Sample Consensus). Our method makes improvements in RANSAC in three aspects: first, the hypotheses are preferentially generated by sampling the input feature points on the order of ages and similarities of the features; second, the evaluation of hypotheses is performed based on the SPRT (Sequential Probability Ratio Test) that makes bad hypotheses discarded very fast without verifying all the data points; third, we aggregate the three best hypotheses to get the final estimation instead of only selecting the best hypothesis. The first two aspects improve the speed of RANSAC by generating good hypotheses and discarding bad hypotheses in advance, respectively. The last aspect improves the accuracy of motion estimation. Our method was evaluated in the KITTI (Karlsruhe Institute of Technology and Toyota Technological Institute) and the New Tsukuba dataset. Experimental results show that the proposed method achieves better results for both speed and accuracy than RANSAC. PMID- 29027934 TI - Angiotensin I-Converting Enzyme (ACE) Inhibitory Activity, Antioxidant Properties, Phenolic Content and Amino Acid Profiles of Fucus spiralis L. Protein Hydrolysate Fractions. AB - Food protein-derived hydrolysates with multi-bioactivities such as antihypertensive and antioxidant properties have recently received special attention since both activities can play significant roles in preventing cardiovascular diseases. This study reports, for the first time, the angiotensin I-converting enzyme (ACE)-inhibition and antioxidant properties of ultrafiltrate fractions (UF) with different molecular weight ranges (<1, 1-3 and >=3 kDa) obtained from Fucus spiralis protein hydrolysate (FSPH) digested with cellulase bromelain. The amino acids profile, recovery yield, protein, peptide and total phenolic contents of these FSPH-UF, and the in vitro digestibility of F. spiralis crude protein were also investigated. FSPH-UF >=3 kDa presented remarkably higher ACE-inhibition, yield, peptide and polyphenolic (phlorotannins) contents. Antioxidant analysis showed that FSPH-UF <1 kDa and >=3 kDa exhibited significantly higher scavenging of 2,2-diphenyl-1-picrylhydrazyl radical and ferrous ion-chelating (FIC) activity. FSPH-UF >=3 kDa had also notably higher ferric reducing antioxidant power (FRAP). Strong correlations were observed between ACE-inhibition and antioxidant activities (FIC and FRAP). The results suggest that ACE-inhibition and antioxidant properties of FSPH-UF may be due to the bioactive peptides and polyphenols released during the enzymatic hydrolysis. In conclusion, this study shows the potential use of defined size FSPH-UF for the prevention/treatment of hypertension and/or oxidative stress-related diseases. PMID- 29027936 TI - Assessing White Wine Viscosity Variation Using Polarized Laser Speckle: A Promising Alternative to Wine Sensory Analysis. AB - In this paper, we report measurements of wine viscosity, correlated to polarized laser speckle results. Experiments were performed on white wine samples produced with a single grape variety. Effects of the wine making cellar, the grape variety, and the vintage on wine Brix degree, alcohol content, viscosity, and speckle parameters are considered. We show that speckle parameters, namely, spatial contrast and speckle decorrelation time, as well as the inertia moment extracted from the temporal history speckle pattern, are mainly affected by the alcohol and sugar content and hence the wine viscosity. Principal component analysis revealed a high correlation between laser speckle results on the one hand and viscosity and Brix degree values on the other. As speckle analysis proved to be an efficient method of measuring the variation of the viscosity of white mono-variety wine, one can therefore consider it as an alternative method to wine sensory analysis. PMID- 29027937 TI - Abrin Toxicity and Bioavailability after Temperature and pH Treatment. AB - Abrin, one of most potent toxins known to man, is derived from the rosary pea (jequirity pea), Abrus precatorius and is a potential bioterror weapon. The temperature and pH stability of abrin was evaluated with an in vitro cell free translation (CFT) assay, a Vero cell culture cytotoxicity assay, and an in vivo mouse bioassay. pH treatment of abrin had no detrimental effect on its stability and toxicity as seen either in vitro or in vivo. Abrin exposure to increasing temperatures did not completely abrogate protein translation. In both the cell culture cytotoxicity model and the mouse bioassay, abrin's toxic effects were completely abrogated if the toxin was exposed to temperatures of 74 degrees C or higher. In the cell culture model, 63 degrees C-treated abrin had a 30% reduction in cytotoxicity which was validated in the in vivo mouse bioassay with all mice dying but with a slight time-to-death delay as compared to the non treated abrin control. Since temperature inactivation did not affect abrin's ability to inhibit protein synthesis (A-chain), we hypothesize that high temperature treatment affected abrin's ability to bind to cellular receptors (affecting B-chain). Our results confirm the absolute need to validate in vitro cytotoxicity assays with in vivo mouse bioassays. PMID- 29027938 TI - Palladium Nanoparticles-Based Fluorescence Resonance Energy Transfer Aptasensor for Highly Sensitive Detection of Aflatoxin M1 in Milk. AB - A highly sensitive aptasensor for aflatoxin M1 (AFM1) detection was constructed based on fluorescence resonance energy transfer (FRET) between 5 carboxyfluorescein (FAM) and palladium nanoparticles (PdNPs). PdNPs (33 nm) were synthesized through a seed-mediated growth method and exhibited broad and strong absorption in the whole ultraviolet-visible (UV-Vis) range. The strong coordination interaction between nitrogen functional groups of the AFM1 aptamer and PdNPs brought FAM and PdNPs in close proximity, which resulted in the fluorescence quenching of FAM to a maximum extent of 95%. The non-specific fluorescence quenching caused by PdNPs towards fluorescein was negligible. After the introduction of AFM1 into the FAM-AFM1 aptamer-PdNPs FRET system, the AFM1 aptamer preferentially combined with AFM1 accompanied by conformational change, which greatly weakened the coordination interaction between the AFM1 aptamer and PdNPs. Thus, fluorescence recovery of FAM was observed and a linear relationship between the fluorescence recovery and the concentration of AFM1 was obtained in the range of 5-150 pg/mL in aqueous buffer with the detection limit of 1.5 pg/mL. AFM1 detection was also realized in milk samples with a linear detection range from 6 pg/mL to 150 pg/mL. The highly sensitive FRET aptasensor with simple configuration shows promising prospect in detecting a variety of food contaminants. PMID- 29027939 TI - Nicotine Component of Cigarette Smoke Extract (CSE) Decreases the Cytotoxicity of CSE in BEAS-2B Cells Stably Expressing Human Cytochrome P450 2A13. AB - Cytochrome P450 2A13 (CYP2A13), an extrahepatic enzyme mainly expressed in the human respiratory system, has been reported to mediate the metabolism and toxicity of cigarette smoke. We previously found that nicotine inhibited 4 (methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) metabolism by CYP2A13, but its influence on other components of cigarette smoke remains unclear. The nicotine component of cigarette smoke extract (CSE) was separated, purified, and identified using high-performance liquid chromatography (HPLC) and ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS), splitting CSE into a nicotine section (CSE-N) and nicotine-free section (CSE-O). Cell viability and apoptosis by Cell Counting Kit-8 (CCK-8) and flow cytometry assays were conducted on immortalized human bronchial epithelial (BEAS-2B) cells stably expressing CYP2A13 (B-2A13) or vector (B-V), respectively. Interestingly, CSE and CSE-O were toxic to BEAS-2B cells whereas CSE-N showed less cytotoxicity. CSE-O was more toxic to B-2A13 cells than to B-V cells (IC50 of 2.49% vs. 7.06%), which was flatted by 8-methoxypsoralen (8-MOP), a CYP inhibitor. CSE-O rather than CSE or CSE-N increased apoptosis of B-2A13 cells rather than B-V cells. Accordingly, compared to CSE-N and CSE, CSE-O significantly changed the expression of three pairs of pro- and anti-apoptotic proteins, Bcl-2 Associated X Protein/B cell lymphoma-2 (Bax/Bcl-2), Cleaved Poly (Adenosine Diphosphate Ribose) Polymerase/Poly (Adenosine Diphosphate-Ribose) Polymerase (C-PARP/PARP), and C-caspase-3/caspase-3, in B-2A13 cells. In addition, recombination of CSE-N and CSE-O (CSE-O/N) showed similar cytotoxicity and apoptosis to the original CSE. These results demonstrate that the nicotine component decreases the metabolic activation of CYP2A13 to CSE and aids in understanding the critical role of CYP2A13 in human respiratory diseases caused by cigarette smoking. PMID- 29027940 TI - Zika Virus Persistently and Productively Infects Primary Adult Sensory Neurons In Vitro. AB - Zika virus (ZIKV) has recently surged in human populations, causing an increase in congenital and Guillain-Barre syndromes. While sexual transmission and presence of ZIKV in urine, semen, vaginal secretions, and saliva have been established, the origin of persistent virus shedding into biological secretions is not clear. Using a primary adult murine neuronal culture model, we have determined that ZIKV persistently and productively infects sensory neurons of the trigeminal and dorsal root ganglia, which innervate glands and mucosa of the face and the genitourinary tract, respectively, without apparent injury. Autonomic neurons that innervate these regions are not permissive for infection. However, productive ZIKV infection of satellite glial cells that surround and support sensory and autonomic neurons in peripheral ganglia results in their destruction. Persistent infection of sensory neurons, without affecting their viability, provides a potential reservoir for viral shedding in biological secretions for extended periods of time after infection. Furthermore, viral destruction of satellite glial cells may contribute to the development of Guillain-Barre Syndrome via an alternative mechanism to the established autoimmune response. PMID- 29027941 TI - Verification of a Method for Measuring Parkinson's Disease Related Temporal Irregularity in Spiral Drawings. AB - Parkinson's disease (PD) is a progressive movement disorder caused by the death of dopamine-producing cells in the midbrain. There is a need for frequent symptom assessment, since the treatment needs to be individualized as the disease progresses. The aim of this paper was to verify and further investigate the clinimetric properties of an entropy-based method for measuring PD-related upper limb temporal irregularities during spiral drawing tasks. More specifically, properties of a temporal irregularity score (TIS) for patients at different stages of PD, and medication time points were investigated. Nineteen PD patients and 22 healthy controls performed repeated spiral drawing tasks on a smartphone. Patients performed the tests before a single levodopa dose and at specific time intervals after the dose was given. Three movement disorder specialists rated videos of the patients based on the unified PD rating scale (UPDRS) and the Dyskinesia scale. Differences in mean TIS between the groups of patients and healthy subjects were assessed. Test-retest reliability of the TIS was measured. The ability of TIS to detect changes from baseline (before medication) to later time points was investigated. Correlations between TIS and clinical rating scores were assessed. The mean TIS was significantly different between healthy subjects and patients in advanced groups (p-value = 0.02). Test-retest reliability of TIS was good with Intra-class Correlation Coefficient of 0.81. When assessing changes in relation to treatment, TIS contained some information to capture changes from Off to On and wearing off effects. However, the correlations between TIS and clinical scores (UPDRS and Dyskinesia) were weak. TIS was able to differentiate spiral drawings drawn by patients in an advanced stage from those drawn by healthy subjects, and TIS had good test-retest reliability. TIS was somewhat responsive to single-dose levodopa treatment. Since TIS is an upper limb high frequency-based measure, it cannot be detected during clinical assessment. PMID- 29027942 TI - On the Effect of Hydrogen on the Low-Temperature Elastic and Anelastic Properties of Ni-Ti-Based Alloys. AB - Linear and non-linear internal friction and the effective Young's modulus of a Ni50.8Ti49.2 alloy have been studied after different heat treatments, affecting hydrogen content, over wide ranges of temperatures (13-300 K) and strain amplitudes (10-7-10-4) at frequencies near 90 kHz. It has been shown that the contamination of the alloy by hydrogen strongly affects the internal friction and Young's modulus of the martensitic phase. Presence of hydrogen gives rise to a non-relaxation internal friction maximum due to a competition of two different temperature-dependent processes. The temperature position and height of the maximum depend strongly on the hydrogen content. We conclude that many of the internal friction peaks, reported earlier for differently treated Ni-Ti-based alloys, had the same origin as the present maximum. PMID- 29027943 TI - Low-Grade Dysplastic Nodules Revealed as the Tipping Point during Multistep Hepatocarcinogenesis by Dynamic Network Biomarkers. AB - Hepatocellular carcinoma (HCC) is a complex disease with a multi-step carcinogenic process from preneoplastic lesions, including cirrhosis, low-grade dysplastic nodules (LGDNs), and high-grade dysplastic nodules (HGDNs) to HCC. There is only an elemental understanding of its molecular pathogenesis, for which a key problem is to identify when and how the critical transition happens during the HCC initiation period at a molecular level. In this work, for the first time, we revealed that LGDNs is the tipping point (i.e., pre-HCC state rather than HCC state) of hepatocarcinogenesis based on a series of gene expression profiles by a new mathematical model termed dynamic network biomarkers (DNB)-a group of dominant genes or molecules for the transition. Different from the conventional biomarkers based on the differential expressions of the observed genes (or molecules) for diagnosing a disease state, the DNB model exploits collective fluctuations and correlations of the observed genes, thereby predicting the imminent disease state or diagnosing the critical state. Our results show that DNB composed of 59 genes signals the tipping point of HCC (i.e., LGDNs). On the other hand, there are a large number of differentially expressed genes between cirrhosis and HGDNs, which highlighted the stark differences or drastic changes before and after the tipping point or LGDNs, implying the 59 DNB members serving as the early-warning signals of the upcoming drastic deterioration for HCC. We further identified the biological pathways responsible for this transition, such as the type I interferon signaling pathway, Janus kinase-signal transducers and activators of transcription (JAK-STAT) signaling pathway, transforming growth factor (TGF)-beta signaling pathway, retinoic acid-inducible gene I (RIG-I)-like receptor signaling pathway, cell adhesion molecules, and cell cycle. In particular, pathways related to immune system reactions and cell adhesion were downregulated, and pathways related to cell growth and death were upregulated. Furthermore, DNB was validated as an effective predictor of prognosis for HCV induced HCC patients by survival analysis on independent data, suggesting a potential clinical application of DNB. This work provides biological insights into the dynamic regulations of the critical transitions during multistep hepatocarcinogenesis. PMID- 29027944 TI - The Fabrication and Characterization of Ni/4H-SiC Schottky Diode Radiation Detectors with a Sensitive Area of up to 4 cm2. AB - Silicon carbide (SiC) detectors of an Ni/4H-SiC Schottky diode structure and with sensitive areas of 1-4 cm2 were fabricated using high-quality lightly doped epitaxial 4H-SiC material, and were tested in the detection of alpha particles and pulsed X-rays/UV-light. A linear energy response to alpha particles ranging from 5.157 to 5.805 MeV was obtained. The detectors were proved to have a low dark current, a good energy resolution, and a high neutron/gamma discrimination for pulsed radiation, showing the advantages in charged particle detection and neutron detection in high-temperature and high-radiation environments. PMID- 29027945 TI - Etched Polymer Fibre Bragg Gratings and Their Biomedical Sensing Applications. AB - Bragg gratings in etched polymer fibres and their unique properties and characteristics are discussed in this paper. Due to the change in material and mechanical properties of the polymer fibre through etching, Bragg gratings inscribed in such fibres show high reflectivity and enhanced intrinsic sensitivity towards strain, temperature, and pressure. The short-term and long term stability of the gratings and the effect of hysteresis on the dynamic characteristics are also discussed. The unique properties and enhanced intrinsic sensitivity of etched polymer fibre Bragg grating are ideal for the development of high-sensitivity sensors for biomedical applications. To demonstrate their biomedical sensing capabilities, a high-sensitivity pressure transducer that operates in the blood pressure range, and a breathing rate monitoring device are developed and presented. PMID- 29027946 TI - Serum 25-Hydroxyvitamin D Concentrations and Indicators of Mental Health: An Analysis of the Canadian Health Measures Survey. AB - The main function of vitamin D is calcium homeostasis. However, emerging evidence has correlated adequate serum 25-hydroxyvitamin D (25(OH)D) concentrations with better mental health. The objective of this study is to investigate the association of serum 25(OH)D concentrations with indicators of mental health such as depression, anxiety, and stress. Associations of serum 25(OH)D concentrations with four indicators of mental health were examined using ordered logistic regression models with increasing specificity that account for demographics, socio-economic status, and health. Margin effects are used to determine the probability of the average adult Canadian being in the best mental health state by groupings of serum 25(OH)D concentrations. A robust association between serum 25(OH)D concentrations and the indicators of mental health were observed. In the fully adjusted ordered logistic model, an average Canadian appeared more likely to experience better mental health when serum 25(OH)D concentrations were higher. This study adds to the weight of the existence of an association between vitamin D status and mental health, but, as this study is cross sectional, it does not establish causality. Due to the low risk of harm from toxicity and the relative modest costs of vitamin D supplements, more research to establish the effectiveness and causality of this relationship is recommended. PMID- 29027947 TI - Two New Sandwich-Type Polyoxomolybdates Functionalized with Diphosphonates: Efficient and Selective Oxidation of Sulfides to Sulfones. AB - Two sandwich-type polyoxomolybdates Na8[MO2{Mo2O5(O3PCH3C(O)PO3)}2] (M = Ni2+ (1); Co2+ (2)) were synthesized by one-pot reaction of Na2HPMo12O40.14H2O, 1 hydroxy ethidene diphosphonic acid (HEDP=HOC(CH3)(PO3H2)2), and (1) NiCl2/CoCl2 (2). Compounds 1 and 2 were characterized by single crystal X-ray analysis, X-ray powder diffraction (XRPD), IR spectroscopy, 31P NMR spectra, UV-vis spectroscopy, and thermogravimetric analyses (TGA). Structural analysis reveals that 1 and 2 exhibit similar centrosymmetric structure, which consists of one transition metal (TM) ion sandwiched by two same subunits {Mo2O5(O3PCH3C(O)PO3)}. The clusters 1 and 2 show efficient catalytic activities for oxidation of thioanisole. Moreover, they are catalytically selective for oxidizing thioanisole. Both resuable polyoxomolybdates 1 and 2 catalysts show good thermo- and hydrolytic stability. It is noted that compound 1 shows outstanding catalytic activity for oxidation of various sulfides to corresponding sulfones with 93-100% selectivity at 97-100% conversion in one hour under mild conditions, which is potentially valuable to the removal of organic sulfides. PMID- 29027949 TI - The Flexural Strength and Fracture Toughness of TC4-Based Laminated Composites Reinforced with Ti Aluminide and Carbide. AB - TiC-Ti-Al mixed powders and TC4 titanium alloy foils were overlapped layer-by layer in the graphite die. The TC4-based laminated composite sheets reinforced by Ti aluminide and carbide were successfully fabricated via spark plasma sintering (SPS) at 1100 degrees C with a well-bonded interface. The composite layers were mainly composed of TiAl, Ti3Al, Ti2AlC, and Ti3AlC2 phases. The carbides particles distributed in the matrix played an important role in the deflection of cracks and the passivation of microcracks. TC4 titanium alloy layers had an obvious effect on the stress distribution during the loading process, and provided an energy dissipation mechanism, which could improve the mechanical properties of the laminated composite sheets obviously. When the theoretical amount of Ti2AlC was 20 wt %, the flexural strength and fracture toughness of the laminated composite sheets reached the maximum value in the arrester direction, which were 1428.79 MPa and 64.08 MPa.m1/2, respectively. PMID- 29027948 TI - Comparing the Performance of Indoor Localization Systems through the EvAAL Framework. AB - In recent years, indoor localization systems have been the object of significant research activity and of growing interest for their great expected social impact and their impressive business potential. Application areas include tracking and navigation, activity monitoring, personalized advertising, Active and Assisted Living (AAL), traceability, Internet of Things (IoT) networks, and Home-land Security. In spite of the numerous research advances and the great industrial interest, no canned solutions have yet been defined. The diversity and heterogeneity of applications, scenarios, sensor and user requirements, make it difficult to create uniform solutions. From that diverse reality, a main problem is derived that consists in the lack of a consensus both in terms of the metrics and the procedures used to measure the performance of the different indoor localization and navigation proposals. This paper introduces the general lines of the EvAAL benchmarking framework, which is aimed at a fair comparison of indoor positioning systems through a challenging competition under complex, realistic conditions. To evaluate the framework capabilities, we show how it was used in the 2016 Indoor Positioning and Indoor Navigation (IPIN) Competition. The 2016 IPIN competition considered three different scenario dimensions, with a variety of use cases: (1) pedestrian versus robotic navigation, (2) smartphones versus custom hardware usage and (3) real-time positioning versus off-line post processing. A total of four competition tracks were evaluated under the same EvAAL benchmark framework in order to validate its potential to become a standard for evaluating indoor localization solutions. The experience gained during the competition and feedback from track organizers and competitors showed that the EvAAL framework is flexible enough to successfully fit the very different tracks and appears adequate to compare indoor positioning systems. PMID- 29027950 TI - Control Design and Digital Implementation of a Fast 2-Degree-of-Freedom Translational Optical Image Stabilizer for Image Sensors in Mobile Camera Phones. AB - This study presents design, digital implementation and performance validation of a lead-lag controller for a 2-degree-of-freedom (DOF) translational optical image stabilizer (OIS) installed with a digital image sensor in mobile camera phones. Nowadays, OIS is an important feature of modern commercial mobile camera phones, which aims to mechanically reduce the image blur caused by hand shaking while shooting photos. The OIS developed in this study is able to move the imaging lens by actuating its voice coil motors (VCMs) at the required speed to the position that significantly compensates for imaging blurs by hand shaking. The compensation proposed is made possible by first establishing the exact, nonlinear equations of motion (EOMs) for the OIS, which is followed by designing a simple lead-lag controller based on established nonlinear EOMs for simple digital computation via a field-programmable gate array (FPGA) board in order to achieve fast response. Finally, experimental validation is conducted to show the favorable performance of the designed OIS; i.e., it is able to stabilize the lens holder to the desired position within 0.02 s, which is much less than previously reported times of around 0.1 s. Also, the resulting residual vibration is less than 2.2-2.5 MUm, which is commensurate to the very small pixel size found in most of commercial image sensors; thus, significantly minimizing image blur caused by hand shaking. PMID- 29027952 TI - Modeling and Compensation of Random Drift of MEMS Gyroscopes Based on Least Squares Support Vector Machine Optimized by Chaotic Particle Swarm Optimization. AB - MEMS (Micro Electro Mechanical System) gyroscopes have been widely applied to various fields, but MEMS gyroscope random drift has nonlinear and non-stationary characteristics. It has attracted much attention to model and compensate the random drift because it can improve the precision of inertial devices. This paper has proposed to use wavelet filtering to reduce noise in the original data of MEMS gyroscopes, then reconstruct the random drift data with PSR (phase space reconstruction), and establish the model for the reconstructed data by LSSVM (least squares support vector machine), of which the parameters were optimized using CPSO (chaotic particle swarm optimization). Comparing the effect of modeling the MEMS gyroscope random drift with BP-ANN (back propagation artificial neural network) and the proposed method, the results showed that the latter had a better prediction accuracy. Using the compensation of three groups of MEMS gyroscope random drift data, the standard deviation of three groups of experimental data dropped from 0.00354 degrees /s, 0.00412 degrees /s, and 0.00328 degrees /s to 0.00065 degrees /s, 0.00072 degrees /s and 0.00061 degrees /s, respectively, which demonstrated that the proposed method can reduce the influence of MEMS gyroscope random drift and verified the effectiveness of this method for modeling MEMS gyroscope random drift. PMID- 29027951 TI - Effects of Maternal Low-Energy Diet during Gestation on Intestinal Morphology, Disaccharidase Activity, and Immune Response to Lipopolysaccharide Challenge in Pig Offspring. AB - Maternal nutrition during gestation is involved in the offspring's intestinal development and immunity. The aim of this study was to (1) determine the effects of maternal energy on intestinal digestion and absorption function in offspring, using pigs as a model; and (2) to evaluate the potential effect and mechanisms of maternal energy in modulating immune responses of lipopolysaccharide (LPS) challenged piglets. After mating, thirty-six nine-parity sows (Landrace * Yorkshire), body weight (BW) (initial body weight 233.56 +/- 2.77 kg) were allocated to two dietary treatment groups; a control diet (CON) group and a low energy diet (LED) group. The nutrient levels of the CON were based on the nutrient recommendations by the National Research Council (NRC, 2012), and contained 3.40 MCal digestible energy (DE)/kg diet and 7.3% crude protein; while the LED contained 3.00 MCal DE/kg diet. The dietary treatments were introduced from day 1 of gestation to farrowing. Intestine samples were collected from the pigs' offspring at birth, and at weaning (day 28 post-birth). At weaning, male pigs from control and LED groups were intraperitoneally injected with LPS (50 MUg/kg body weight) or saline (n = 6), and sacrificed at 4 h post-injection to collect blood, intestine and digesta samples for biochemical analysis. The results indicated that the maternal LED markedly decreased the BW, small intestinal weight, and the ratio of jejunum and ileum villus height to crypt depth in the offspring. Moreover, the activities of lactase and sucrase in newborn piglets' intestine, and sucrase and maltase in weaning piglet intestine were markedly decreased by the maternal LED. In addition, maternal LED significantly increased the mRNA relative expression of ileal IL-6 and TNF-alpha in newborn piglets. Plasma IL-1beta concentration and colonic Escherichia coli amount were affected by maternal diet (p < 0.05) and LPS challenge (p < 0.001). Maternal LED significant increased the mRNA relative expression of ileal TLR-4, IL-1beta and NF-kappaB as well as decreased ZO-1 in weaning pigs after LPS challenge (p < 0.05). In conclusion, decreasing energy intake could suppress the offspring's intestinal digestion and absorption function, and increase the susceptibility of weaning piglets to LPS challenge. PMID- 29027953 TI - Vitamin D and Age-Related Macular Degeneration. AB - In recent years, the relationship between vitamin D and health has received growing attention from the scientific and medical communities. Vitamin D deficiencies have been repeatedly associated with various acute and chronic diseases, including age-related macular degeneration (AMD). Its active metabolite, 1alpha,25-dihydoxy vitamin D, acts as a modulator of cell proliferation, differentiation and apoptosis, and cumulative data from experimental and observational studies suggest that relatively a lower vitamin D status could be a potential risk factor for the development of early and/or late AMD. Herein, we made a narrative review of the mechanisms linking a potential role of vitamin D with the current concepts of AMD pathophysiology. PMID- 29027955 TI - 3D Defect Localization on Exothermic Faults within Multi-Layered Structures Using Lock-In Thermography: An Experimental and Numerical Approach. AB - Micro-electronic devices are increasingly incorporating miniature multi-layered integrated architectures. However, the localization of faults in three dimensional structure remains challenging. This study involved the experimental and numerical estimation of the depth of a thermally active heating source buried in multi-layered silicon wafer architecture by using both phase information from an infrared microscopy and finite element simulation. Infrared images were acquired and real-time processed by a lock-in method. It is well known that the lock-in method can increasingly improve detection performance by enhancing the spatial and thermal resolution of measurements. Operational principle of the lock in method is discussed, and it is represented that phase shift of the thermal emission from a silicon wafer stacked heat source chip (SSHSC) specimen can provide good metrics for the depth of the heat source buried in SSHSCs. Depth was also estimated by analyzing the transient thermal responses using the coupled electro-thermal simulations. Furthermore, the effects of the volumetric heat source configuration mimicking the 3D through silicon via integration package were investigated. Both the infrared microscopic imaging with the lock-in method and FE simulation were potentially useful for 3D isolation of exothermic faults and their depth estimation for multi-layered structures, especially in packaged semiconductors. PMID- 29027956 TI - Combined Venom Gland Transcriptomic and Venom Peptidomic Analysis of the Predatory Ant Odontomachus monticola. AB - Ants (hymenoptera: Formicidae) have adapted to many different environments and have become some of the most prolific and successful insects. To date, 13,258 ant species have been reported. They have been classified into 333 genera and 17 subfamilies. Except for a few Formicinae, Dolichoderinae, and members of other subfamilies, most ant species have a sting with venom. The venoms are composed of formic acid, alkaloids, hydrocarbons, amines, peptides, and proteins. Unlike the venoms of other animals such as snakes and spiders, ant venoms have seldom been analyzed comprehensively, and their compositions are not yet completely known. In this study, we used both transcriptomic and peptidomic analyses to study the composition of the venom produced by the predatory ant species Odontomachus monticola. The transcriptome analysis yielded 49,639 contigs, of which 92 encoded toxin-like peptides and proteins with 18,106,338 mapped reads. We identified six pilosulin-like peptides by transcriptomic analysis in the venom gland. Further, we found intact pilosulin-like peptide 1 and truncated pilosulin-like peptides 2 and 3 by peptidomic analysis in the venom. Our findings related to ant venom peptides and proteins may lead the way towards development and application of novel pharmaceutical and biopesticidal resources. PMID- 29027957 TI - Peroxisomal 2-Hydroxyacyl-CoA Lyase Is Involved in Endogenous Biosynthesis of Heptadecanoic Acid. AB - Circulating heptadecanoic acid (C17:0) is reported to be a pathology risk/prognosis biomarker and a dietary biomarker. This pathology relationship has been shown to be reliably predictive even when independent of dietary contributions, suggesting that the endogenous biosynthesis of C17:0 is related to the pathological aetiology. Little is known about C17:0 biosynthesis, which tissues contribute to the circulating levels, and how C17:0 is related to pathology. Hacl1+/- mice were mated to obtain Hacl1-/- and Hacl1+/+ control mice. At 14 weeks, they were anesthetized for tissue collection and fatty acid analysis. Compared to Hacl1+/+, C15:0 was not significantly affected in any Hacl1 /- tissues. However, the Hacl1-/- plasma and liver C17:0 levels were significantly lower: ~26% and ~22%, respectively. No significant differences were seen in the different adipose tissues. To conclude, Hacl1 plays a significant role in the liver and plasma levels of C17:0, providing evidence it can be endogenously biosynthesized via alpha-oxidation. The strong inverse association of C17:0 with pathology raises the question whether there is a direct link between alpha-oxidation and these diseases. Currently, there is no clear evidence, warranting further research into the role of alpha-oxidation in relation to metabolic diseases. PMID- 29027954 TI - Marine Sponge Natural Products with Anticancer Potential: An Updated Review. AB - Despite the huge investment into research and the significant effort and advances made in the search for new anticancer drugs in recent decades, cancer cure and treatment continue to be a formidable challenge. Many sources, including plants, animals, and minerals, have been explored in the oncological field because of the possibility of identifying novel molecular therapeutics. Marine sponges are a prolific source of secondary metabolites, a number of which showed intriguing tumor chemopreventive and chemotherapeutic properties. Recently, Food and Drug Administration-approved drugs derived from marine sponges have been shown to reduce metastatic breast cancer, malignant lymphoma, and Hodgkin's disease. The chemopreventive and potential anticancer activity of marine sponge-derived compounds could be explained by multiple cellular and molecular mechanisms, including DNA protection, cell-cycle modulation, apoptosis, and anti-inflammatory activities as well as their ability to chemosensitize cancer cells to traditional antiblastic chemotherapy. The present article aims to depict the multiple mechanisms involved in the chemopreventive and therapeutic effects of marine sponges and critically explore the limitations and challenges associated with the development of marine sponge-based anticancer strategy. PMID- 29027958 TI - Adipose Tissue as a Strategic Source of Mesenchymal Stem Cells in Bone Regeneration: A Topical Review on the Most Promising Craniomaxillofacial Applications. AB - Bone regeneration in craniomaxillofacial surgery represents an issue that involves both surgical and aesthetic aspects. The most recent studies on bone tissue engineering involving adipose-derived stromal/stem cells (ASCs) have clearly demonstrated that such cells can play a crucial role in the treatment of craniomaxillofacial defects, given their strong commitment towards the osteogenic phenotype. A deeper knowledge of the molecular mechanisms underlying ASCs is crucial for a correct understanding of the potentialities of ASCs-based therapies in the most complex maxillofacial applications. In this topical review, we analyzed the molecular mechanisms of ASCs related to their support toward angiogenesis and osteogenesis, during bone regeneration. Moreover, we analyzed both case reports and clinical trials reporting the most promising clinical applications of ASCs in the treatment of craniomaxillofacial defects. Our study aimed to report the main molecular and clinical features shown by ASCs, used as a therapeutic support in bone engineering, as compared to the use of conventional autologous and allogeneic bone grafts. PMID- 29027959 TI - Radiation-Induced Changes of microRNA Expression Profiles in Radiosensitive and Radioresistant Leukemia Cell Lines with Different Levels of Chromosome Abnormalities. AB - In our study, we estimate an effect from chromosome aberrations and genome mutations on changes in microRNA expression profiles in cancer cell lines demonstrating different radiosensitivity. Here, cell viability and microRNA spectrum have been estimated 1, 4, and 24 h after irradiation. MiSeq high throughput sequencing system (Illumina, San Diego, CA, USA) is employed to perform microRNA spectrum estimation. In the K562 cell line, the number of expressed microRNAs in chromosomes demonstrates a more pronounced variation. An analysis of microRNA effects on signaling pathway activity demonstrates differences in post-transcriptional regulation of the expression of genes included into 40 signaling pathways. In the K562 cell line, microRNA dynamics analyzed for their dependence on chromosome localization show a wider scattering of microRNA expression values for a pair of chromosomes compared to the HL-60 cell line. An analysis of microRNAs expression in the K562 and HL-60 cell lines after irradiation has shown that chromosome abnormalities can affect microRNA expression changes. A study of radiation-induced changes of microRNA expression profiles in the K562 and HL-60 cell lines has revealed a dependence of microRNA expression changes on the number of chromosome aberrations and genome mutations. PMID- 29027960 TI - A New Approach to Assess Lifetime Dietary Patterns Finds Lower Consumption of Animal Foods with Aging in a Longitudinal Analysis of a Health-Oriented Adventist Population. AB - Life-course diet patterns may impact risk of disease, but little is known about dietary trends with aging. In a retrospective longitudinal analysis we estimated lifetime intake of animal products and adherence to vegetarian dietary patterns among 51,082 Adventist Health Study-2 (AHS-2) subjects using data from a reliable life-course dietary (meats, dairy, eggs) questionnaire. Results showed a marked tendency to consume fewer animal products (in total) in older years and to reduce consumption of meat, poultry and fish, but not eggs or dairy. Among the 29% of elderly subjects who during their lifetime kept the same dietary pattern (LTS) were: LTS-vegans (1.1%), LTS-lacto-ovo vegetarians (31.2%), LTS-pesco vegetarians (0.49%), LTS-semi vegetarians (3.7%), and LTS-non-vegetarians (63.5%). Among the 71% of switchers were "Converters" (59.7%) who moved towards and "Reverters" (9.1%) who moved away from vegetarian diets, and Multiverters (31.2%), who had moved in both directions. LTS-non-vegetarians, and also reverters, were more overweight and showed a less healthy lifestyle than others. We conclude that the dietary patterns are dynamic with strong trends to reduce animal foods and to adopt more vegetarian patterns with aging. The disease experience of subjects with different lifetime dietary patterns can be compared. PMID- 29027962 TI - Novel Therapeutics for Multiple Sclerosis Designed by Parasitic Worms. AB - The evolutionary response to endemic infections with parasitic worms (helminth) was the development of a distinct regulatory immune profile arising from the need to encapsulate the helminths while simultaneously repairing tissue damage. According to the old friend's hypothesis, the diminished exposure to these parasites in the developed world has resulted in a dysregulated immune response that contributes to the increased incidence of immune mediated diseases such as Multiple Sclerosis (MS). Indeed, the global distribution of MS shows an inverse correlation to the prevalence of helminth infection. On this basis, the possibility of treating MS with helminth infection has been explored in animal models and phase 1 and 2 human clinical trials. However, the possibility also exists that the individual immune modulatory molecules secreted by helminth parasites may offer a more defined therapeutic strategy. PMID- 29027961 TI - Dosis Facit Sanitatem-Concentration-Dependent Effects of Resveratrol on Mitochondria. AB - The naturally occurring polyphenol, resveratrol (RSV), is known for a broad range of actions. These include a positive impact on lifespan and health, but also pro apoptotic anti-cancer properties. Interestingly, cell culture experiments have revealed a strong impact of RSV on mitochondrial function. The compound was demonstrated to affect mitochondrial respiration, structure and mass of mitochondria as well as mitochondrial membrane potential and, ultimately, mitochondria-associated cell death pathways. Notably, the mitochondrial effects of RSV show a very strict and remarkable concentration dependency: At low concentrations, RSV (<50 MUM) fosters cellular antioxidant defense mechanisms, activates AMP-activated protein kinase (AMPK)- and sirtuin 1 (SIRT1)-linked pathways and enhances mitochondrial network formation. These mechanisms crucially contribute to the cytoprotective effects of RSV against toxins and disease related damage, in vitro and in vivo. However, at higher concentrations, RSV (>50 MUM) triggers changes in (sub-)cellular Ca2+ homeostasis, disruption of mitochondrial membrane potential and activation of caspases selectively yielding apoptotic cancer cell death, in vitro and in vivo. In this review, we discuss the promising therapeutic potential of RSV, which is most probably related to the compound's concentration-dependent manipulation of mitochondrial function and structure. PMID- 29027963 TI - Optimizing the Nutritional Support of Adult Patients in the Setting of Cirrhosis. AB - AIM: The aim of this work is to develop a pragmatic approach in the assessment and management strategies of patients with cirrhosis in order to optimize the outcomes in this patient population. METHOD: A systematic review of literature was conducted through 8 July 2017 on the PubMed Database looking for key terms, such as malnutrition, nutrition, assessment, treatment, and cirrhosis. Articles and studies looking at associations between nutrition and cirrhosis were reviewed. RESULTS: An assessment of malnutrition should be conducted in two stages: the first, to identify patients at risk for malnutrition based on the severity of liver disease, and the second, to perform a complete multidisciplinary nutritional evaluation of these patients. Optimal management of malnutrition should focus on meeting recommended daily goals for caloric intake and inclusion of various nutrients in the diet. The nutritional goals should be pursued by encouraging and increasing oral intake or using other measures, such as oral supplementation, enteral nutrition, or parenteral nutrition. CONCLUSIONS: Although these strategies to improve nutritional support have been well established, current literature on the topic is limited in scope. Further research should be implemented to test if this enhanced approach is effective. PMID- 29027964 TI - Microglia and Monocytes/Macrophages Polarization Reveal Novel Therapeutic Mechanism against Stroke. AB - Stroke is a leading cause of morbidity and mortality worldwide, and consists of two types, ischemic and hemorrhagic. Currently, there is no effective treatment to increase the survival rate or improve the quality of life after ischemic and hemorrhagic stroke in the subacute to chronic phases. Therefore, it is necessary to establish therapeutic strategies to facilitate functional recovery in patients with stroke during both phases. Cell-based therapies, using microglia and monocytes/macrophages preconditioned by optimal stimuli and/or any therapies targeting these cells, might be an ideal therapeutic strategy for managing stroke. Microglia and monocytes/macrophages polarize to the classic pro inflammatory type (M1-like) or alternative protective type (M2-like) by optimal condition. Cell-based therapies using M2-like microglia and monocytes/macrophages might be protective therapeutic strategies against stroke for three reasons. First, M2-like microglia and monocytes/monocytes secrete protective remodeling factors, thus prompting neuronal network recovery via tissue (including neuronal) and vascular remodeling. Second, these cells could migrate to the injured hemisphere through the blood-brain barrier or choroid-plexus. Third, these cells could mitigate the extent of inflammation-induced injuries by suitable timing of therapeutic intervention. Although future translational studies are required, M2 like microglia and monocytes/macrophages therapies are attractive for managing stroke based on their protective functions. PMID- 29027967 TI - Cusp Catastrophe Regression and Its Application in Public Health and Behavioral Research. AB - The cusp catastrophe model is an innovative approach for investigating a phenomenon that consists of both continuous and discrete changes in one modeling framework. However, its application to empirical health and behavior data has been hindered by the complexity in data-model fit. In this study, we reported our work in the development of a new modeling method-cusp catastrophe regression (RegCusp in short) by casting the cusp catastrophe into a statistical regression. With the RegCusp approach, unbiased model parameters can be estimated with the maximum likelihood estimation method. To validate the RegCusp method, a series of simulations were conducted to demonstrate the unbiasedness of parameter estimation. Since the estimated residual variance with the Fisher information matrix method was over-dispersed, a bootstrap re-sampling procedure was developed and used as a remedy. We also demonstrate the practical applicability of the RegCusp with empirical data from an NIH-funded project to evaluate an HIV prevention intervention program to educate adolescents in the Bahamas for condom use. Study findings indicated that the model parameters estimated with RegCusp were practically more meaningful than those estimated with comparable methods, especially the estimated cusp point. PMID- 29027966 TI - Myocardial Expression of Macrophage Migration Inhibitory Factor in Patients with Heart Failure. AB - Macrophage migration inhibitory factor (MIF) is a pleiotropic inflammatory protein and contributes to several different inflammatory and ischemic/hypoxic diseases. MIF was shown to be cardioprotective in experimental myocardial ischemia/reperfusion injury and its expression is regulated by the transcription factor hypoxia-inducible factor (HIF)-1alpha. We here report on MIF expression in the failing human heart and assess myocardial MIF in different types of cardiomyopathy. Myocardial tissue samples from n = 30 patients were analyzed by quantitative Real-Time PCR. MIF and HIF-1alpha mRNA expression was analyzed in myocardial samples from patients with ischemic (ICM) and non-ischemic cardiomyopathy (NICM) and from patients after heart transplantation (HTX). MIF expression was elevated in myocardial samples from patients with ICM compared to NICM. Transplanted hearts showed lower MIF levels compared to hearts from patients with ICM. Expression of HIF-1alpha was analyzed and was shown to be significantly increased in ICM patients compared to patients with NICM. MIF and HIF-1alpha mRNA is expressed in the human heart. MIF and HIF-1alpha expression depends on the underlying type of cardiomyopathy. Patients with ICM show increased myocardial MIF and HIF-1alpha expression. PMID- 29027968 TI - Rapid Identification of Dipeptidyl Peptidase-IV (DPP-IV) Inhibitory Peptides from Ruditapes philippinarum Hydrolysate. AB - Dipeptidyl peptidase-IV (DPP-IV) inhibitory peptides were rapidly identified from Ruditapes philippinarum hydrolysate. The hydrolysate was fractionated by ethanol precipitation and preparative reverse phase high-performance liquid chromatography (RP-HPLC). The fraction which showed the highest DPP-IV inhibitory activity was then analyzed by a high-throughput nano-liquid chromatography electrospray ionization tandem mass spectrometry (nano-LC ESI-MS/MS) method, and the sequences of peptides were identified based on the MS/MS spectra against the Mollusca protein data from the UniProt database. In total, 50 peptides were identified. Furthermore, molecular docking was used to identify potential DPP-IV inhibitors from the identified peptides. Docking results suggested that four peptides: FAGDDAPR, LAPSTM, FAGDDAPRA, and FLMESH, could bind pockets of DPP-IV through hydrogen bonds, pi-pi bonds, and charge interactions. The four peptides were chemically synthesized and tested for DPP-IV inhibitory activity. The results showed that they possessed DPP-IV inhibitory activity with IC50 values of 168.72 MUM, 140.82 MUM, 393.30 MUM, and >500 MUM, respectively. These results indicate that R. philippinarum-derived peptides may have potential as functional food ingredients for the prevention of diabetes. PMID- 29027965 TI - Enhancing the Therapeutic Delivery of Oligonucleotides by Chemical Modification and Nanoparticle Encapsulation. AB - Oligonucleotide (ON) drugs, including small interfering RNA (siRNA), microRNA (miRNA) and antisense oligonucleotides, are promising therapeutic agents. However, their low membrane permeability and sensitivity to nucleases present challenges to in vivo delivery. Chemical modifications of the ON offer a potential solution to improve the stability and efficacy of ON drugs. Combined with nanoparticle encapsulation, delivery at the site of action and gene silencing activity of chemically modified ON drugs can be further enhanced. In the present review, several types of ON drugs, selection of chemical modification, and nanoparticle-based delivery systems to deliver these ON drugs are discussed. PMID- 29027970 TI - Stereopermutation on the Putative Structure of the Marine Natural Product Mucosin. AB - A stereodivergent total synthesis has been executed based on the plausibly misassigned structure of the unusual marine hydrindane mucosin (1). The topological connectivity of the four contiguous all-carbon stereocenters has been examined by selective permutation on the highlighted core. Thus, capitalizing on an unprecedented stereofacial preference of the cis-fused bicycle[4.3.0]non-3-ene system when a Michael acceptor motif is incorporated, copper-mediated conjugate addition furnished a single diastereomer. Cued by the relative relationship reported for the appendices in the natural product, the resulting anti-adduct was elaborated into a probative target structure 1*. PMID- 29027969 TI - New and Old Genes Associated with Primary and Established Responses to Cisplatin and Topotecan Treatment in Ovarian Cancer Cell Lines. AB - Low efficiency of chemotherapy in ovarian cancer results from the development of drug resistance. Cisplatin (CIS) and topotecan (TOP) are drugs used in chemotherapy of this cancer. We analyzed the development of CIS and TOP resistance in ovarian cancer cell lines. Incubation of drug sensitive cell lines (W1 and A2780) with cytostatic drugs was used to determine the primary response to CIS and TOP. Quantitative polymerase chain reaction (Q-PCR) was performed to measure the expression levels of the genes. We observed decreased expression of the MCTP1 gene in all resistant cell lines. We observed overexpression of the S100A3 and HERC5 genes in TOP-resistant cell lines. Increased expression of the S100A3 gene was also observed in CIS-resistant A2780 sublines. Overexpression of the C4orf18 gene was observed in CIS- and TOP-resistant A2780 sublines. A short time of exposure to CIS led to increased expression of the ABCC2 gene in the W1 and A2780 cell lines and increased expression of the C4orf18 gene in the A2780 cell line. A short time of exposure to TOP led to increased expression of the S100A3 and HERC5 genes in both sensitive cell lines, increased expression of the C4orf18 gene in the A2780 cell line and downregulation of the MCTP1 gene in the W1 cell line. Our results suggest that changes in expression of the MCTP1, S100A3 and C4orf18 genes may be related to both CIS and TOP resistance. Increased expression of the HERC5 gene seems to be important only in TOP resistance. PMID- 29027972 TI - Special Issue "Synthesis and Applications of Oligonucleotide Conjugates". AB - The underlying idea of oligonucleotide conjugates is to provide oligonucleotide with some novel property [...]. PMID- 29027973 TI - Smart Annotation of Cyclic Data Using Hierarchical Hidden Markov Models. AB - Cyclic signals are an intrinsic part of daily life, such as human motion and heart activity. The detailed analysis of them is important for clinical applications such as pathological gait analysis and for sports applications such as performance analysis. Labeled training data for algorithms that analyze these cyclic data come at a high annotation cost due to only limited annotations available under laboratory conditions or requiring manual segmentation of the data under less restricted conditions. This paper presents a smart annotation method that reduces this cost of labeling for sensor-based data, which is applicable to data collected outside of strict laboratory conditions. The method uses semi-supervised learning of sections of cyclic data with a known cycle number. A hierarchical hidden Markov model (hHMM) is used, achieving a mean absolute error of 0.041 +/- 0.020 s relative to a manually-annotated reference. The resulting model was also used to simultaneously segment and classify continuous, 'in the wild' data, demonstrating the applicability of using hHMM, trained on limited data sections, to label a complete dataset. This technique achieved comparable results to its fully-supervised equivalent. Our semi supervised method has the significant advantage of reduced annotation cost. Furthermore, it reduces the opportunity for human error in the labeling process normally required for training of segmentation algorithms. It also lowers the annotation cost of training a model capable of continuous monitoring of cycle characteristics such as those employed to analyze the progress of movement disorders or analysis of running technique. PMID- 29027971 TI - Chemotaxonomic Classification Applied to the Identification of Two Closely Related Citrus TCMs Using UPLC-Q-TOF-MS-Based Metabolomics. AB - This manuscript elaborates on the establishment of a chemotaxonomic classification strategy for closely-related Citrus fruits in Traditional Chinese Medicines (TCMs). UPLC-Q-TOF-MS-based metabolomics was applied to depict the variable chemotaxonomic markers and elucidate the metabolic mechanism of Citrus TCMs from different species and at different ripening stages. Metabolomics can capture a comprehensive analysis of small molecule metabolites and can provide a powerful approach to establish metabolic profiling, creating a bridge between genotype and phenotype. To further investigate the different metabolites in four closely-related Citrus TCMs, non-targeted metabolite profiling analysis was employed as an efficient technique to profile the primary and secondary metabolites. The results presented in this manuscript indicate that primary metabolites enable the discrimination of species, whereas secondary metabolites are associated with species and the ripening process. In addition, analysis of the biosynthetic pathway highlighted that the syntheses of flavone and flavone glycosides are deeply affected in Citrus ripening stages. Ultimately, this work might provide a feasible strategy for the authentication of Citrus fruits from different species and ripening stages and facilitate a better understanding of their different medicinal uses. PMID- 29027974 TI - Longitudinal Measurements of Tarnished Plant Bug (Hemiptera: Miridae) Susceptibility to Insecticides in Arkansas, Louisiana, and Mississippi: Associations with Insecticide Use and Insect Control Recommendations. AB - Concentration-response assays were conducted from 2008 through 2015 to measure the susceptibility of field populations of Lygus lineolaris (Palisot de Beauvois) from the Delta regions of Arkansas, Louisiana, and Mississippi to acephate, imidacloprid, thiamethoxam, permethrin, and sulfoxaflor. A total of 229 field populations were examined for susceptibility to acephate, 145 for susceptibility to imidacloprid, and 208 for susceptibility to thiamethoxam. Permethrin assays were conducted in 2014 and 2015 to measure levels of pyrethroid resistance in 44 field populations, and sulfoxaflor assays were conducted against 24 field populations in 2015. Resistance to acephate and permethrin is as high or higher than that previously reported, although some populations, especially those exposed to permethrin, appear to be susceptible. Variable assay responses were measured for populations exposed to imidacloprid and thiamethoxam. Average response metrics suggest that populations are generally susceptible to the neonicotinoids, but a few populations from cotton fields experiencing control problems exhibited elevated LC50s. Efforts to associate variability in LC50s with recorded use of insecticides and estimated cotton insect losses and control costs suggest that intensive use of insecticides over several decades may have elevated general detoxifying enzymes in L. lineolaris and some field populations may be exhibiting resistance to multiple classes of insecticide. These results suggest that efforts should be made to manage these pests more efficiently with a reduced use of insecticides and alternative controls. PMID- 29027975 TI - Dietary Supplement Use during Preconception: The Australian Longitudinal Study on Women's Health. AB - Worldwide, dietary supplement use among reproductive aged women is becoming increasingly common. The aim of this study was to investigate dietary supplement use among Australian women during preconception. Self-reported data were collected prospectively for the Australian Longitudinal Study on Women's Health (ALSWH). The sample included 485 women aged 31-36 years, with supplement data, classified as preconception when completing Survey 5 of the ALSWH in 2009. Frequency and contingency tables were calculated and Pearson's chi-square test for associations between demographic variables and supplementation status was performed. Sixty-three per cent of women were taking at least one dietary supplement during preconception. Multiple-micronutrient supplements were the most commonly reported supplement (44%). Supplements containing folic acid and iodine were reported by 51% and 37% of preconception women, respectively. Folic acid (13%), omega-3 fatty acids (11%), vitamin C (7%), B vitamins (4%), iron (3%), and calcium (3%) were the most common single nutrients supplemented during preconception. Women trying to conceive, with no previous children, and born outside Australia were more likely to take dietary supplements. In Australia, dietary supplement use during preconception is relatively high. However, supplementation of recommended nutrients, including folic acid and iodine, could be improved. PMID- 29027976 TI - Development and Bioanalytical Applications of a White Light Reflectance Spectroscopy Label-Free Sensing Platform. AB - The development of a sensing platform based on white light reflectance spectroscopy (WLRS) is presented. The evolution of the system, from polymer film characterization and sensing of volatile organic compounds to biosensor for the label-free determination of either high (e.g., proteins) or low molecular weight analytes (e.g., pesticides), is described. At the same time, the passage from single to multi-analyte determinations, and from a laboratory prototype set-up to a compact device appropriate for on-site determination, is outlined. The improvements made on both the sensor and the optical set-up, and the concomitant advances in the analytical characteristics and the robustness of the assays performed with the different layouts, are also presented. Finally, the future perspectives of the system, aiming for the creation of a standalone instrument to be used by non-experts, will be discussed. PMID- 29027978 TI - Feedback System Control Optimized Electrospinning for Fabrication of an Excellent Superhydrophobic Surface. AB - Superhydrophobic surface, as a promising micro/nano material, has tremendous applications in biological and artificial investigations. The electrohydrodynamics (EHD) technique is a versatile and effective method for fabricating micro- to nanoscale fibers and particles from a variety of materials. A combination of critical parameters, such as mass fraction, ratio of N, N Dimethylformamide (DMF) to Tetrahydrofuran (THF), inner diameter of needle, feed rate, receiving distance, applied voltage as well as temperature, during electrospinning process, to determine the morphology of the electrospun membranes, which in turn determines the superhydrophobic property of the membrane. In this study, we applied a recently developed feedback system control (FSC) scheme for rapid identification of the optimal combination of these controllable parameters to fabricate superhydrophobic surface by one-step electrospinning method without any further modification. Within five rounds of experiments by testing totally forty-six data points, FSC scheme successfully identified an optimal parameter combination that generated electrospun membranes with a static water contact angle of 160 degrees or larger. Scanning electron microscope (SEM) imaging indicates that the FSC optimized surface attains unique morphology. The optimized setup introduced here therefore serves as a one-step, straightforward, and economic approach to fabricate superhydrophobic surface with electrospinning approach. PMID- 29027977 TI - Participation of the Halogens in Photochemical Reactions in Natural and Treated Waters. AB - Halide ions are ubiquitous in natural waters and wastewaters. Halogens play an important and complex role in environmental photochemical processes and in reactions taking place during photochemical water treatment. While inert to solar wavelengths, halides can be converted into radical and non-radical reactive halogen species (RHS) by sensitized photolysis and by reactions with secondary reactive oxygen species (ROS) produced through sunlight-initiated reactions in water and atmospheric aerosols, such as hydroxyl radical, ozone, and nitrate radical. In photochemical advanced oxidation processes for water treatment, RHS can be generated by UV photolysis and by reactions of halides with hydroxyl radicals, sulfate radicals, ozone, and other ROS. RHS are reactive toward organic compounds, and some reactions lead to incorporation of halogen into byproducts. Recent studies indicate that halides, or the RHS derived from them, affect the concentrations of photogenerated reactive oxygen species (ROS) and other reactive species; influence the photobleaching of dissolved natural organic matter (DOM); alter the rates and products of pollutant transformations; lead to covalent incorporation of halogen into small natural molecules, DOM, and pollutants; and give rise to certain halogen oxides of concern as water contaminants. The complex and colorful chemistry of halogen in waters will be summarized in detail and the implications of this chemistry for global biogeochemical cycling of halogen, contaminant fate in natural waters, and water purification technologies will be discussed. PMID- 29027979 TI - Molecular Mechanics of the Moisture Effect on Epoxy/Carbon Nanotube Nanocomposites. AB - The strong structural integrity of polymer nanocomposite is influenced in the moist environment; but the fundamental mechanism is unclear, including the basis for the interactions between the absorbed water molecules and the structure, which prevents us from predicting the durability of its applications across multiple scales. In this research, a molecular dynamics model of the epoxy/single walled carbon nanotube (SWCNT) nanocomposite is constructed to explore the mechanism of the moisture effect, and an analysis of the molecular interactions is provided by focusing on the hydrogen bond (H-bond) network inside the nanocomposite structure. The simulations show that at low moisture concentration, the water molecules affect the molecular interactions by favorably forming the water-nanocomposite H-bonds and the small cluster, while at high concentration the water molecules predominantly form the water-water H-bonds and the large cluster. The water molecules in the epoxy matrix and the epoxy-SWCNT interface disrupt the molecular interactions and deteriorate the mechanical properties. Through identifying the link between the water molecules and the nanocomposite structure and properties, it is shown that the free volume in the nanocomposite is crucial for its structural integrity, which facilitates the moisture accumulation and the distinct material deteriorations. This study provides insights into the moisture-affected structure and properties of the nanocomposite from the nanoscale perspective, which contributes to the understanding of the nanocomposite long-term performance under the moisture effect. PMID- 29027982 TI - Regional Sustainable Development Analysis Based on Information Entropy-Sichuan Province as an Example. AB - According to the implementation of a scientific development perspective, sustainable development needs to consider regional development, economic and social development, and the harmonious development of society and nature, but regional sustainable development is often difficult to quantify. Through an analysis of the structure and functions of a regional system, this paper establishes an evaluation index system, which includes an economic subsystem, an ecological environmental subsystem and a social subsystem, to study regional sustainable development capacity. A sustainable development capacity measure model for Sichuan Province was established by applying the information entropy calculation principle and the Brusselator principle. Each subsystem and entropy change in a calendar year in Sichuan Province were analyzed to evaluate Sichuan Province's sustainable development capacity. It was found that the established model could effectively show actual changes in sustainable development levels through the entropy change reaction system, at the same time this model could clearly demonstrate how those forty-six indicators from the three subsystems impact on the regional sustainable development, which could make up for the lack of sustainable development research. PMID- 29027983 TI - To Facilitate or Curb? The Role of Financial Development in China's Carbon Emissions Reduction Process: A Novel Approach. AB - With the Paris Agreement coming into effect, China, as the largest CO2 emitter in the world, will be facing greater pressure to reduce its carbon emissions. This paper discusses how to solve this issue from the perspective of financial development in China. Although many studies have analyzed its impact on carbon emissions, the conclusions are contradictory. A major criticism of the existing studies is the reasonability of the selection of appropriate indicators and panel estimation techniques. Almost all studies use only one or limited indicators to represent the financial development and ignore the cross-sectional dependence. To fulfil the gaps mentioned above, a financial development index system is built, and with the framework of the STIRPAT (Stochastic impacts by regression on population, affluence, and technology) model, this paper applies an ARDL approach to investigating the long-run relationship between financial development and carbon emissions and a dynamic panel error-corrected model to capture the short run impact. The empirical results show that financial development can improve carbon emissions, and such impact not only shows a regional difference but also reflects the features of stage differences. Additionally, based on the discussion on seven specific aspects of financial development, our findings can be helpful for policy makers to enact corresponding policies to realize the goal of reducing carbon emissions in China. PMID- 29027980 TI - The Plasticizer Bisphenol A Perturbs the Hepatic Epigenome: A Systems Level Analysis of the miRNome. AB - Ubiquitous exposure to bisphenol A (BPA), an endocrine disruptor (ED), has raised concerns for both human and ecosystem health. Epigenetic factors, including microRNAs (miRNAs), are key regulators of gene expression during cancer. The effect of BPA exposure on the zebrafish epigenome remains poorly characterized. Zebrafish represents an excellent model to study cancer as the organism develops a disease that resembles human cancer. Using zebrafish as a systems toxicology model, we hypothesized that chronic BPA-exposure impacts the miRNome in adult zebrafish and establishes an epigenome more susceptible to cancer development. After a 3 week exposure to 100 nM BPA, RNA from the liver was extracted to perform high throughput mRNA and miRNA sequencing. Differential expression (DE) analyses comparing BPA-exposed to control specimens were performed using established bioinformatics pipelines. In the BPA-exposed liver, 6188 mRNAs and 15 miRNAs were differently expressed (q <= 0.1). By analyzing human orthologs of the DE zebrafish genes, signatures associated with non-alcoholic fatty liver disease (NAFLD), oxidative phosphorylation, mitochondrial dysfunction and cell cycle were uncovered. Chronic exposure to BPA has a significant impact on the liver miRNome and transcriptome in adult zebrafish with the potential to cause adverse health outcomes including cancer. PMID- 29027981 TI - BACE1 Function and Inhibition: Implications of Intervention in the Amyloid Pathway of Alzheimer's Disease Pathology. AB - Alzheimer's disease (AD) is a fatal progressive neurodegenerative disorder characterized by increasing loss in memory, cognition, and function of daily living. Among the many pathologic events observed in the progression of AD, changes in amyloid beta peptide (Abeta) metabolism proceed fastest, and precede clinical symptoms. BACE1 (beta-secretase 1) catalyzes the initial cleavage of the amyloid precursor protein to generate Abeta. Therefore inhibition of BACE1 activity could block one of the earliest pathologic events in AD. However, therapeutic BACE1 inhibition to block Abeta production may need to be balanced with possible effects that might result from diminished physiologic functions BACE1, in particular processing of substrates involved in neuronal function of the brain and periphery. Potentials for beneficial or consequential effects resulting from pharmacologic inhibition of BACE1 are reviewed in context of ongoing clinical trials testing the effect of BACE1 candidate inhibitor drugs in AD populations. PMID- 29027985 TI - Triterpenoids from Ocimum labiatum Activates Latent HIV-1 Expression In Vitro: Potential for Use in Adjuvant Therapy. AB - Latent HIV reservoirs in infected individuals prevent current treatment from eradicating infection. Treatment strategies against latency involve adjuvants for viral reactivation which exposes viral particles to antiretroviral drugs. In this study, the effect of novel triterpenoids isolated from Ocimum labiatum on HIV-1 expression was measured through HIV-1 p24 antigen capture in the U1 latency model of HIV-1 infection and in peripheral blood mononuclear cells (PBMCs) of infected patients on combination antiretroviral therapy (cART). The mechanism of viral reactivation was determined through the compound's effect on cytokine production, histone deacetylase (HDAC) inhibition, and protein kinase C (PKC) activation. Cytotoxicity of the triterpenoids was determined using a tetrazolium dye and flow cytometry. The isolated triterpene isomers, 3-hydroxy-4,6a,6b,11,12,14b hexamethyl-1,2,3,4,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-octadecahydropicene 4,8a-dicarboxylic acid (HHODC), significantly (p < 0.05) induced HIV-1 expression in a dose-dependent manner in U1 cells at non-cytotoxic concentrations. HHODC also induced viral expression in PBMCs of HIV-1 infected patients on cART. In addition, the compound up-regulated the production of interleukin (IL)-2, IL-6, tumour necrosis factor (TNF)-alpha, and interferon (IFN)-gamma but had no effect on HDAC and PKC activity, suggesting cytokine upregulation as being involved in latency activation. The observed in vitro reactivation of HIV-1 introduces the adjuvant potential of HHODC for the first time here. PMID- 29027984 TI - The Effect of Intra-articular Injection of Autologous Microfragmented Fat Tissue on Proteoglycan Synthesis in Patients with Knee Osteoarthritis. AB - Osteoarthritis (OA) is one of the leading musculoskeletal disorders in the adult population. It is associated with cartilage damage triggered by the deterioration of the extracellular matrix tissue. The present study explores the effect of intra-articular injection of autologous microfragmented adipose tissue to host chondrocytes and cartilage proteoglycans in patients with knee OA. A prospective, non-randomized, interventional, single-center, open-label clinical trial was conducted from January 2016 to April 2017. A total of 17 patients were enrolled in the study, and 32 knees with osteoarthritis were assessed. Surgical intervention (lipoaspiration) followed by tissue processing and intra-articular injection of the final microfragmented adipose tissue product into the affected knee(s) was performed in all patients. Patients were assessed for visual analogue scale (VAS), delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) and immunoglobulin G (IgG) glycans at the baseline, three, six and 12 months after the treatment. Magnetic resonance sequence in dGEMRIC due to infiltration of the anionic, negatively charged contrast gadopentetate dimeglumine (Gd-DTPA2-) into the cartilage indicated that the contents of cartilage glycosaminoglycans significantly increased in specific areas of the treated knee joint. In addition, dGEMRIC consequently reflected subsequent changes in the mechanical axis of the lower extremities. The results of our study indicate that the use of autologous and microfragmented adipose tissue in patients with knee OA (measured by dGEMRIC MRI) increased glycosaminoglycan (GAG) content in hyaline cartilage, which is in line with observed VAS and clinical results. PMID- 29027986 TI - Effects of Conjugated Linoleic Acid Supplementation on the Expression Profile of miRNAs in Porcine Adipose Tissue. AB - Conjugated linoleic acids (CLAs) play a major role in adipocyte differentiation and lipid metabolism in animals. MicroRNAs (miRNAs) appear to be involved in many biological processes in adipose tissue. However, the specific influence on miRNAs by CLA supplementation in porcine adipose tissue remains unclear. Thus, we continuously added 1.5% CLA to the pig diet from the embryo stage to the finishing period and conducted a high-throughput sequencing approach to analyse the changes in adipose tissue miRNAs. We identified 283 known porcine miRNAs, and 14 miRNAs were differentially expressed in response to CLA treatment. A Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that the targets of the 14 differentially expressed miRNAs were involved in the Wnt signalling pathway. The CLA treatment downregulated the gene expression of PPARgamma, C/EBPalpha, FAS, and FATP1 in both subcutaneous and abdominal fat tissues; the analysis showed that ssc-miR-21 expression was significantly correlated with PPARgamma expression (p<0.05), and speculated that ssc-miR-21 might influence adipogenesis through PPARgamma. In conclusion, our study analysed the miRNA profiles in porcine adipose tissues by CLA treatment, and demonstrated that miRNAs are important regulators of fat lipogenesis. This study provides valuable information for the molecular regulatory mechanism of CLA on adipose tissue. PMID- 29027987 TI - Chromosomal Evolution in Chiroptera. AB - Chiroptera is the second largest order among mammals, with over 1300 species in 21 extant families. The group is extremely diverse in several aspects of its natural history, including dietary strategies, ecology, behavior and morphology. Bat genomes show ample chromosome diversity (from 2n = 14 to 62). As with other mammalian orders, Chiroptera is characterized by clades with low, moderate and extreme chromosomal change. In this article, we will discuss trends of karyotypic evolution within distinct bat lineages (especially Phyllostomidae, Hipposideridae and Rhinolophidae), focusing on two perspectives: evolution of genome architecture, modes of chromosomal evolution, and the use of chromosome data to resolve taxonomic problems. PMID- 29027988 TI - The History of Tree and Shrub Taxa on Bol'shoy Lyakhovsky Island (New Siberian Archipelago) since the Last Interglacial Uncovered by Sedimentary Ancient DNA and Pollen Data. AB - Ecosystem boundaries, such as the Arctic-Boreal treeline, are strongly coupled with climate and were spatially highly dynamic during past glacial-interglacial cycles. Only a few studies cover vegetation changes since the last interglacial, as most of the former landscapes are inundated and difficult to access. Using pollen analysis and sedimentary ancient DNA (sedaDNA) metabarcoding, we reveal vegetation changes on Bol'shoy Lyakhovsky Island since the last interglacial from permafrost sediments. Last interglacial samples depict high levels of floral diversity with the presence of trees (Larix, Picea, Populus) and shrubs (Alnus, Betula, Ribes, Cornus, Saliceae) on the currently treeless island. After the Last Glacial Maximum, Larix re-colonised the island but disappeared along with most shrub taxa. This was probably caused by Holocene sea-level rise, which led to increased oceanic conditions on the island. Additionally, we applied two newly developed larch-specific chloroplast markers to evaluate their potential for tracking past population dynamics from environmental samples. The novel markers were successfully re-sequenced and exhibited two variants of each marker in last interglacial samples. SedaDNA can track vegetation changes as well as genetic changes across geographic space through time and can improve our understanding of past processes that shape modern patterns. PMID- 29027989 TI - Inhibition of neddylation by MLN4924 improves neointimal hyperplasia and promotes apoptosis of vascular smooth muscle cells through p53 and p62. AB - Targeting apoptosis of vascular smooth muscle cells (VSMCs) represents an attractive approach to diminish the occurrence of restenosis. Neddylation is a highly conserved post-translational modification process and inhibition of neddylation has been shown to regulate apoptosis of other cells. However, the impacts of neddylation inhibition on VSMCs and neointimal hyperplasia have not been studied. In our present study, we have shown that MLN4924, a selective inhibitor of NEDD8-activating enzyme (NAE), markedly inhibited neointimal hyperplasia and accumulation of VSMCs, whereas increased apoptosis in the vascular wall. In vitro studies revealed that MLN4924 induced G2/M arrest and apoptosis of human VSMCs. Knockdown of NAE1 had similar effects. MLN4924 upregulated p53 and p62 in human VSMCs. Knockdown of either p53 or p62 mitigated the impacts of MLN4924 on G2/M arrest and apoptosis. Moreover, p53 knockdown abolished MLN4924-induced upregulation of p62. Finally, smooth muscle p53 knockout mice were generated and subjected to femoral artery injury and MLN4924 treatment. Deficiency of p53 in smooth muscle blocked the effects of MLN4924 on neointimal hyperplasia and apoptosis. Together, our results revealed that neddylation inhibition induces apoptosis through p53 and p62 in VSMCs and improves neointimal hyperplasia mainly by promoting apoptosis through smooth muscle p53 in mice. These pre-clinical data provide strong translational implications for targeting restenosis by perturbation of neddylation using MLN4924. PMID- 29027990 TI - IL6 blockade potentiates the anti-tumor effects of gamma-secretase inhibitors in Notch3-expressing breast cancer. AB - Notch pathways have important roles in carcinogenesis including pathways involving the Notch1 and Notch2 oncogenes. Pan-Notch inhibitors, such as gamma secretase inhibitors (GSIs), have been used in the clinical trials, but the outcomes of these trials have been insufficient and have yielded unclear. In the present study, we demonstrated that GSIs, such as MK-0752 and RO4929097, inhibit breast tumor growth, but increase the breast cancer stem cell (BCSC) population in Notch3-expressing breast cancer cells, in a process that is coupled with IL6 induction and is blocked by the IL6R antagonist Tocilizumab (TCZ). IL6 induction results from inhibition of Notch3-Hey2 signaling through MK-0752. Furthermore, HIF1alpha upregulates Notch3 expression via direct binding to the Notch3 promoter and subsequently downregulates BCSCs by decreasing the IL6 levels in Notch3 expressing breast cancer cells. Utilizing both breast cancer cell line xenografts and patient-derived xenografts (PDX), we showed that the combination of MK-0752 and Tocilizumab significantly decreases BCSCs and inhibits tumor growth and thus might serve as a novel therapeutic strategy for treating women with Notch3 expressing breast cancers. PMID- 29027992 TI - Deficiency of Parkinson's disease-related gene Fbxo7 is associated with impaired mitochondrial metabolism by PARP activation. AB - This corrects the article DOI: 10.1038/cdd.2016.104. PMID- 29027991 TI - N6-isopentenyladenosine dual targeting of AMPK and Rab7 prenylation inhibits melanoma growth through the impairment of autophagic flux. AB - Targeting the autophagic process is considered a promising therapeutic strategy in cancer since a great number of tumors, including melanoma, show high basal levels of protective autophagy that contributes to tumor progression and chemoresistance. Here, exploiting both in vitro and in vivo approaches, we identified N6-isopentenyladenosine (iPA), an end product of the mevalonate pathway, as a novel autophagy inhibitor with an interesting anti-melanoma activity. iPA, after being phosphorylated by adenosine kinase into 5'-iPA monophosphate, induces autophagosome accumulation through AMPK activation, measured by increased fluorescent GFP-LC3 puncta and enhanced conversion into the lipidated autophagosome-associated LC3-II. However, at a later stage iPA blocks the autophagic flux monitored by p62 accumulation, Luciferase reporter-based assay for LC3 turnover in living cells and fluorescence of a tandem RFP-GFP-LC3 construct. Impaired autophagic flux is due to the block of autophagosome-lysosome fusion through the defective localization and function of Rab7, whose prenylation is inhibited by iPA, resulting in a net inhibition of autophagy completion that finally leads to melanoma apoptotic cell death. AMPK silencing prevents apoptosis upon iPA treatment, whereas basal autophagosome turnover is still inhibited due to unprenylated Rab7. These results strongly support the advantage of targeting autophagy for therapeutic gain in melanoma and provide the preclinical rational to further investigate the antitumor action of iPA, able to coordinately induce autophagosome accumulation and inhibit the autophagic flux, independently targeting AMPK and Rab7 prenylation. This property may be particularly useful for the selective killing of tumors, like melanoma, that frequently develop chemotherapy resistance due to protective autophagy activation. PMID- 29027993 TI - Current pharmacotherapy for obesity. AB - More than one-third of adults in the USA have obesity, which causes, exacerbates or adversely impacts numerous medical comorbidities, including diabetes mellitus and cardiovascular disease. Despite intensive lifestyle modifications, the disease severity warrants further aggressive intervention, including pharmacotherapy, medical devices and bariatric surgery. Noninvasive anti-obesity drugs have thus now resurfaced as targeted adjunctive therapeutic approaches to intensive lifestyle intervention, bridging the gap between lifestyle and bariatric surgery. In this Review, we discuss FDA-approved anti-obesity drugs in terms of safety and efficacy. As most of these drugs have a mean percentage weight loss reported in clinical trials but individual variations in response rates, a future direction of obesity pharmacotherapy research might include the potential for personalized medicine to target early responders to these anti obesity drugs. PMID- 29027994 TI - Bone diseases: Romosozumab - on track or derailed? PMID- 29027995 TI - Microbiota: FMT transiently improves insulin sensitivity. PMID- 29027997 TI - Microdiversification in genome-streamlined ubiquitous freshwater Actinobacteria. AB - Actinobacteria of the acI lineage are the most abundant microbes in freshwater systems, but there are so far no pure living cultures of these organisms, possibly because of metabolic dependencies on other microbes. This, in turn, has hampered an in-depth assessment of the genomic basis for their success in the environment. Here we present genomes from 16 axenic cultures of acI Actinobacteria. The isolates were not only of minute cell size, but also among the most streamlined free-living microbes, with extremely small genome sizes (1.2 1.4 Mbp) and low genomic GC content. Genome reduction in these bacteria might have led to auxotrophy for various vitamins, amino acids and reduced sulphur sources, thus creating dependencies to co-occurring organisms (the 'Black Queen' hypothesis). Genome analyses, moreover, revealed a surprising degree of inter- and intraspecific diversity in metabolic pathways, especially of carbohydrate transport and metabolism, and mainly encoded in genomic islands. The striking genotype microdiversification of acI Actinobacteria might explain their global success in highly dynamic freshwater environments with complex seasonal patterns of allochthonous and autochthonous carbon sources. We propose a new order within Actinobacteria ('Candidatus Nanopelagicales') with two new genera ('Candidatus Nanopelagicus' and 'Candidatus Planktophila') and nine new species. PMID- 29027996 TI - Aquatic urban ecology at the scale of a capital: community structure and interactions in street gutters. AB - In most cities, streets are designed for collecting and transporting dirt, litter, debris, storm water and other wastes as a municipal sanitation system. Microbial mats can develop on street surfaces and form microbial communities that have never been described. Here, we performed the first molecular inventory of the street gutter-associated eukaryotes across the entire French capital of Paris and the non-potable waters sources. We found that the 5782 OTUs (operational taxonomic units) present in the street gutters which are dominated by diatoms (photoautotrophs), fungi (heterotrophs), Alveolata and Rhizaria, includes parasites, consumers of phototrophs and epibionts that may regulate the dynamics of gutter mat microbial communities. Network analyses demonstrated that street microbiome present many species restricted to gutters, and an overlapping composition between the water sources used for street cleaning (for example, intra-urban aquatic networks and the associated rivers) and the gutters. We propose that street gutters, which can cover a significant surface area of cities worldwide, potentially have important ecological roles in the remediation of pollutants or downstream wastewater treatments, might also be a niche for growth and dissemination of putative parasite and pathogens. PMID- 29027998 TI - Temporal dynamics of uncultured viruses: a new dimension in viral diversity. AB - Recent work has vastly expanded the known viral genomic sequence space, but the seasonal dynamics of viral populations at the genome level remain unexplored. Here we followed the viral community in a freshwater lake for 1 year using genome resolved viral metagenomics, combined with detailed analyses of the viral community structure, associated bacterial populations and environmental variables. We reconstructed 8950 complete and partial viral genomes, the majority of which were not persistent in the lake throughout the year, but instead continuously succeeded each other. Temporal analysis of 732 viral genus-level clusters demonstrated that one-fifth were undetectable at specific periods of the year. Based on host predictions for a subset of reconstructed viral genomes, we for the first time reveal three distinct patterns of host-pathogen dynamics, where the viruses may peak before, during or after the peak in their host's abundance, providing new possibilities for modelling of their interactions. Time series metagenomics opens up a new dimension in viral profiling, which is essential to understand the full scale of viral diversity and evolution, and the ecological roles of these important factors in the global ecosystem. PMID- 29027999 TI - A population genomics approach shows widespread geographical distribution of cryptic genomic forms of the symbiotic fungus Rhizophagus irregularis. AB - Arbuscular mycorrhizal fungi (AMF; phylum Gomeromycota) associate with plants forming one of the most successful microbe-plant associations. The fungi promote plant diversity and have a potentially important role in global agriculture. Plant growth depends on both inter- and intra-specific variation in AMF. It was recently reported that an unusually large number of AMF taxa have an intercontinental distribution, suggesting long-distance gene flow for many AMF species, facilitated by either long-distance natural dispersal mechanisms or human-assisted dispersal. However, the intercontinental distribution of AMF species has been questioned because the use of very low-resolution markers may be unsuitable to detect genetic differences among geographically separated AMF, as seen with some other fungi. This has been untestable because of the lack of population genomic data, with high resolution, for any AMF taxa. Here we use phylogenetics and population genomics to test for intra-specific variation in Rhizophagus irregularis, an AMF species for which genome sequence information already exists. We used ddRAD sequencing to obtain thousands of markers distributed across the genomes of 81 R. irregularis isolates and related species. Based on 6 888 variable positions, we observed significant genetic divergence into four main genetic groups within R. irregularis, highlighting that previous studies have not captured underlying genetic variation. Despite considerable genetic divergence, surprisingly, the variation could not be explained by geographical origin, thus also supporting the hypothesis for at least one AMF species of widely dispersed AMF genotypes at an intercontinental scale. Such information is crucial for understanding AMF ecology, and how these fungi can be used in an environmentally safe way in distant locations. PMID- 29028000 TI - Influence of resistance breeding in common bean on rhizosphere microbiome composition and function. AB - The rhizosphere microbiome has a key role in plant growth and health, providing a first line of defense against root infections by soil-borne pathogens. Here, we investigated the composition and metabolic potential of the rhizobacterial community of different common bean (Phaseolus vulgaris) cultivars with variable levels of resistance to the fungal root pathogen Fusarium oxysporum (Fox). For the different bean cultivars grown in two soils with contrasting physicochemical properties and microbial diversity, rhizobacterial abundance was positively correlated with Fox resistance. Pseudomonadaceae, bacillaceae, solibacteraceae and cytophagaceae were more abundant in the rhizosphere of the Fox-resistant cultivar. Network analyses showed a modular topology of the rhizosphere microbiome of the Fox-resistant cultivar, suggesting a more complex and highly connected bacterial community than in the rhizosphere of the Fox-susceptible cultivar. Metagenome analyses further revealed that specific functional traits such as protein secretion systems and biosynthesis genes of antifungal phenazines and rhamnolipids were more abundant in the rhizobacterial community of the Fox resistant cultivar. Our findings suggest that breeding for Fox resistance in common bean may have co-selected for other unknown plant traits that support a higher abundance of specific beneficial bacterial families in the rhizosphere with functional traits that reinforce the first line of defense. PMID- 29028001 TI - Soil protist communities form a dynamic hub in the soil microbiome. AB - Soil microbes are essential for soil fertility. However, most studies focus on bacterial and/or fungal communities, while the top-down drivers of this microbiome composition, protists, remain poorly understood. Here, we investigated how soil amendments affect protist communities and inferred potential interactions with bacteria and fungi. Specific fertilization treatments impacted both the structure and function of protist communities. Organic fertilizer amendment strongly reduced the relative abundance of plant pathogenic protists and increased bacterivorous and omnivorous protists. The addition of individual biocontrol bacteria and fungi further altered the soil protist community composition, and eventually function. Network analysis integrating protist, bacterial and fungal community data, placed protists as a central hub in the soil microbiome, linking diverse bacterial and fungal populations. Given their dynamic response to soil management practices and key position in linking soil microbial networks, protists may provide the leverage between soil management and the enhancement of bacterial and fungal microbiota at the service of improved soil health. PMID- 29028003 TI - Bacterial secretion of D-arginine controls environmental microbial biodiversity. AB - Bacteria face tough competition in polymicrobial communities. To persist in a specific niche, many species produce toxic extracellular effectors to interfere with the growth of nearby microbes. These effectors include the recently reported non-canonical D-amino acids (NCDAAs). In Vibrio cholerae, the causative agent of cholera, NCDAAs control cell wall integrity in stationary phase. Here, an analysis of the composition of the extracellular medium of V. cholerae revealed the unprecedented presence of D-Arg. Compared with other D-amino acids, D-Arg displayed higher potency and broader toxicity in terms of the number of bacterial species affected. Tolerance to D-Arg was associated with mutations in the phosphate transport and chaperone systems, whereas D-Met lethality was suppressed by mutations in cell wall determinants. These observations suggest that NCDAAs target different cellular processes. Finally, even though virtually all Vibrio species are tolerant to D-Arg, only a few can produce this D-amino acid. Indeed, we demonstrate that D-Arg may function as part of a cooperative strategy in vibrio communities to protect non-producing members from competing bacteria. Because NCDAA production is widespread in bacteria, we anticipate that D-Arg is a relevant modulator of microbial subpopulations in diverse ecosystems. PMID- 29028004 TI - Geobiological feedbacks and the evolution of thermoacidophiles. AB - Oxygen-dependent microbial oxidation of sulfur compounds leads to the acidification of natural waters. How acidophiles and their acidic habitats evolved, however, is largely unknown. Using 16S rRNA gene abundance and composition data from 72 hot springs in Yellowstone National Park, Wyoming, we show that hyperacidic (pH<3.0) hydrothermal ecosystems are dominated by a limited number of archaeal lineages with an inferred ability to respire O2. Phylogenomic analyses of 584 existing archaeal genomes revealed that hyperacidophiles evolved independently multiple times within the Archaea, each coincident with the emergence of the ability to respire O2, and that these events likely occurred in the recent evolutionary past. Comparative genomic analyses indicated that archaeal thermoacidophiles from independent lineages are enriched in similar protein-coding genes, consistent with convergent evolution aided by horizontal gene transfer. Because the generation of acidic environments and their successful habitation characteristically require O2, these results suggest that thermoacidophilic Archaea and the acidity of their habitats co-evolved after the evolution of oxygenic photosynthesis. Moreover, it is likely that dissolved O2 concentrations in thermal waters likely did not reach levels capable of sustaining aerobic thermoacidophiles and their acidifying activity until ~0.8 Ga, when present day atmospheric levels were reached, a time period that is supported by our estimation of divergence times for archaeal thermoacidophilic clades. PMID- 29028007 TI - Endoscopic optical coherence tomography with a focus-adjustable probe. AB - We present a focus-adjustable endoscopic probe for optical coherence tomography (OCT), which is able to acquire images with different focal planes and overcome depth-of-focus limitations by image fusing. The use of a two-way shape-memory alloy spring enables the probe to adjust working distance over 1.5 mm, providing a large scanning range with high resolution and no sensitivity loss. Equipped with a homemade hollow-core ultrasonic motor, the probe is capable of performing an unobstructed 360 deg field-of-view distal scanning. Both the axial resolution and the best lateral resolution are ~4 MUm, with a sensitivity of 100.3 dB. Spectral-domain OCT imaging of phantom and biological tissues with the probe is also demonstrated. PMID- 29028008 TI - Atmospheric boundary layer CO2 remote sensing with a direct detection LIDAR instrument based on a widely tunable optical parametric source. AB - We report on the capability of a direct detection differential absorption lidar (DIAL) for range resolved and integrated path (IPDIAL) remote sensing of CO2 in the atmospheric boundary layer (ABL). The laser source is an amplified nested cavity optical parametric oscillator (NesCOPO) emitting approximately 8 mJ at the two measurement wavelengths selected near 2050 nm. Direct detection atmospheric measurements are taken from the ground using a 30 Hz frequency switching between emitted wavelengths. Results show that comparable precision measurements are achieved in DIAL and IPDIAL modes (not better than a few ppm) on high SNR targets such as near range ABL aerosol and clouds, respectively. Instrumental limitations are analyzed and degradation due to cloud scattering variability is discussed to explain observed DIAL and IPDIAL limitations. PMID- 29028002 TI - Cyanophage-encoded lipid desaturases: oceanic distribution, diversity and function. AB - Cyanobacteria are among the most abundant photosynthetic organisms in the oceans; viruses infecting cyanobacteria (cyanophages) can alter cyanobacterial populations, and therefore affect the local food web and global biochemical cycles. These phages carry auxiliary metabolic genes (AMGs), which rewire various metabolic pathways in the infected host cell, resulting in increased phage fitness. Coping with stress resulting from photodamage appears to be a central necessity of cyanophages, yet the overall mechanism is poorly understood. Here we report a novel, widespread cyanophage AMG, encoding a fatty acid desaturase (FAD), found in two genotypes with distinct geographical distribution. FADs are capable of modulating the fluidity of the host's membrane, a fundamental stress response in living cells. We show that both viral FAD (vFAD) families are Delta9 lipid desaturases, catalyzing the desaturation at carbon 9 in C16 fatty acid chains. In addition, we present a comprehensive fatty acid profiling for marine cyanobacteria, which suggests a unique desaturation pathway of medium- to long chain fatty acids no longer than C16, in accordance with the vFAD activity. Our findings suggest that cyanophages are capable of fiddling with the infected host's membranes, possibly leading to increased photoprotection and potentially enhancing viral-encoded photosynthetic proteins, resulting in a new viral metabolic network. PMID- 29028006 TI - Polymorphism of antibiotic-inactivating enzyme driven by ecology expands the environmental resistome. AB - The environmental resistome has been recognized as the origin and reservoir of antibiotic resistance genes and considered to be dynamic and ever expanding. In this study, a targeted gene sequencing approach revealed that the polymorphic diversity of the aminoglycoside-inactivating enzyme AAC(6')-Ib was ecological niche-specific. AAC(6')-Ib-cr, previously known as a clinical variant, was prevalent in various soils and the intestines of chickens and humans, suggesting that this variant might not have arisen from adaptive mutations in the clinic but instead originated from the environment. Furthermore, ecologically dominant polymorphic variants of AAC(6')-Ib were characterized and found to display different substrate specificities for quinolones and aminoglycosides, conferring the altered resistance spectra. Interestingly, a novel variant with the D179Y substitution showed an extended resistance spectrum to the recently developed fluoroquinolone gemifloxacin. Our results suggest that soil and animal microbiomes could be major reservoirs of antibiotic resistance; polymorphic diversity expands the antibiotic resistome in the environment, resulting in the potential emergence of novel resistance. PMID- 29028009 TI - Extended polar decomposition method of Mueller matrices for turbid media in reflection geometry. AB - The polar decomposition method for Mueller matrices proposed by Lu-Chipman has been demonstrated and validated for many applications. However, in some situations, e.g., when analyzing the Mueller matrix of birefringent turbid media with Mie-sized scatterers acquired in reflection geometry, the method may suffer from limitations due to the assumptions required by this method. Here we extend the Lu-Chipman method and show that it can provide more reasonable results for these situations. The method has been validated experimentally with turbid phantoms. Thus, this Letter may prove useful in tissue polarimetry. PMID- 29028005 TI - Microbiome and infectivity studies reveal complex polyspecies tree disease in Acute Oak Decline. AB - Decline-diseases are complex and becoming increasingly problematic to tree health globally. Acute Oak Decline (AOD) is characterized by necrotic stem lesions and galleries of the bark-boring beetle, Agrilus biguttatus, and represents a serious threat to oak. Although multiple novel bacterial species and Agrilus galleries are associated with AOD lesions, the causative agent(s) are unknown. The AOD pathosystem therefore provides an ideal model for a systems-based research approach to address our hypothesis that AOD lesions are caused by a polymicrobial complex. Here we show that three bacterial species, Brenneria goodwinii, Gibbsiella quercinecans and Rahnella victoriana, are consistently abundant in the lesion microbiome and possess virulence genes used by canonical phytopathogens that are expressed in AOD lesions. Individual and polyspecies inoculations on oak logs and trees demonstrated that B. goodwinii and G. quercinecans cause tissue necrosis and, in combination with A. biguttatus, produce the diagnostic symptoms of AOD. We have proved a polybacterial cause of AOD lesions, providing new insights into polymicrobial interactions and tree disease. This work presents a novel conceptual and methodological template for adapting Koch's postulates to address the role of microbial communities in disease. PMID- 29028010 TI - Highly sensitive demodulation of a vibration-induced phase shift based on a low noise OEO. AB - A highly sensitive demodulation approach of a vibration-induced phase shift based on a low-noise optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. The vibration-induced optical phase variation is directly converted to the electrical oscillating signal of the OEO with carrier phase-shifted double sideband (CPS-DSB) modulation, which is realized by cascading a dual-output Mach Zehnder modulator (DOMZM) and a fiber interferometer. Theoretically, within a CPS DSB modulated OEO, the minimum detectable optical phase shift is determined by the phase noise achievable, and the sensitivity of the optical phase shift demodulation no longer depends on its frequency. A proof-of-concept OEO oscillating at 100 MHz with ultralow phase noise is built for demonstration. The achieved minimum detectable optical phase shift is 0.58 MUrad/?Hz at 1 kHz and 0.21 MUrad/?Hz at 10 kHz, which are the best results ever reported, to the best of our knowledge. PMID- 29028011 TI - Mid-infrared 1 W hollow-core fiber gas laser source. AB - We report the characteristics of a 1 W hollow-core fiber gas laser emitting CW in the mid-IR. Our system is based on an acetylene-filled hollow-core optical fiber guiding with low losses at both the pump and laser wavelengths and operating in the single-pass amplified spontaneous emission regime. Through systematic characterization of the pump absorption and output power dependence on gas pressure, fiber length, and pump intensity, we determine that the reduction of pump absorption at high pump flux and the degradation of gain performance at high gas pressure necessitate the use of increased gain fiber length for efficient lasing at higher powers. Low fiber attenuation is therefore key to efficient high power laser operation. We demonstrate 1.1 W output power at a 3.1 MUm wavelength by using a high-power erbium-doped fiber amplifier pump in a single-pass configuration, approximately 400 times higher CW output power than in the ring cavity previously reported. PMID- 29028012 TI - Ultra-compact all-in-fiber-core Mach-Zehnder interferometer. AB - Optical Mach-Zehnder interferometers (MZIs) are useful components in a variety of optical applications, including optical modulation; signal processing; and physical, chemical, and biological sensing. We introduce here a novel, assembly free all-in-fiber-core MZI, which is directly written with a femtosecond laser. By introducing a positive refractive index-modified zone in half of the fiber core, the original single-mode fiber section is converted into a few-mode fiber section, where a strong coupling between the two lowest-order guided modes is generated, resulting in a well-defined interference spectrum in transmission. This device promises many significant advantages over existing approaches such as ease of fabrication, stability, small insertion loss, robustness extremely broad operating bandwidth, and precise and controllable cavity lengths. These advantages make this device strikingly attractive with the potential for extensive adoption in fiber communications, signal processing, sensors, and laser wavelength control. PMID- 29028013 TI - Plasmonic topological insulators for topological nanophotonics. AB - Photonic topological insulators are optical structures supporting robust propagation of light at their edges that are topologically protected from scattering. Here we propose the concept of plasmonic topological insulators (PTI) that not only topologically protect light at the lattice edges but also enable their confinement and guidance at the deep-subwavelength scale. The suggested PTI are composed of an evanescently coupled array of metallic nanowires that are modulated periodically along the light propagation direction. The intrinsic loss associated with the PTI is found not to deteriorate their topological protection on the edge modes. The proposed PTI may find interesting applications in nanophotonics, where the tolerance to the fabrication disorders for device applications are essential. PMID- 29028014 TI - Classes of non-parity-time-symmetric optical potentials with exceptional-point free phase transitions. AB - Paraxial linear propagation of light in an optical waveguide with material gain and loss is governed by a Schrodinger equation with a complex potential. In this Letter, new classes of non-parity-time (PT)-symmetric complex potentials featuring conjugate-pair eigenvalue symmetry are constructed by operator symmetry methods. Due to this eigenvalue symmetry, it is shown that the spectrum of these complex potentials is often all-real. Under parameter tuning in these potentials, a phase transition can also occur, where pairs of complex eigenvalues appear in the spectrum. A distinctive feature of the phase transition here is that the complex eigenvalues may bifurcate out from an interior continuous eigenvalue inside the continuous spectrum; hence, a phase transition takes place without going through an exceptional point. In one spatial dimension, this class of non PT-symmetric complex potentials is of the form V(x)=h'(x)-h2(x), where h(x) is an arbitrary PT-symmetric complex function. These potentials in two spatial dimensions are also derived. Diffraction patterns in these complex potentials are further examined, and unidirectional propagation behaviors are demonstrated. PMID- 29028015 TI - Simplified demultiplexing scheme for two PDM-IM/DD systems utilizing a single Stokes analyzer over 25-km SMF. AB - We propose a four-linear state of polarization multiplexed intensity modulation and direct detection (IM/DD) scheme based on two orthogonal polarization division multiplexing (PDM) on-off keying systems. We also experimentally demonstrate a simple demultiplexing algorithm for this scheme by utilizing only a single Stokes analyzer. At the rate of 4*10 Gbit/s, the experimental results show that the power penalty of the proposed scheme is about 1.5 dB, compared to the single PDM IM/DD for back-to-back (B2B) transmission. Compared to B2B, just about 1.7 dB power penalty is required after 25 km Corning LEAF optical fiber transmission. Meanwhile, the performance of the polarization tracking is evaluated, and the results show that the BER fluctuation is less than 0.5 dB with a polarization scrambling rate up to 708.75 deg/s. PMID- 29028016 TI - Measuring the electromagnetic chirality of 2D arrays under normal illumination. AB - We present an electromagnetic chirality measure for 2D arrays of subwavelength periodicities under normal illumination. The calculation of the measure uses only the complex reflection and transmission coefficients from the array. The measure allows the ordering of arrays according to their electromagnetic chirality, which further allows a quantitative comparison of different design strategies. The measure is upper bounded, and the extreme properties of objects with high values of electromagnetic chirality make them useful in both near- and far-field applications. We analyze the consequences that different possible symmetries of the array have on its electromagnetic chirality. We use the measure to study four different arrays. The results indicate the suitability of helices for building arrays of high electromagnetic chirality, and the low effectiveness of a substrate for breaking the transverse mirror symmetry. PMID- 29028018 TI - Solitons in a PT-symmetric chi(2) coupler. AB - We consider the existence and stability of solitons in a chi(2) coupler. Both the fundamental and second harmonics (SHs) undergo gain in one of the coupler cores and are absorbed in the other one. The gain and loss are balanced, creating a parity-time (PT) symmetric configuration. We present two types of families of PT symmetric solitons having equal and different profiles of the fundamental and SHs. It is shown that the gain and loss can stabilize solitons. The interaction of stable solitons is shown. In the cascading limit, the model is reduced to the PT-symmetric coupler with effective Kerr-type nonlinearity and the balanced nonlinear gain and loss. PMID- 29028017 TI - Arbitrary-shaped Brillouin microwave photonic filter by manipulating a directly modulated pump. AB - We present a cost-effective gigahertz-wide arbitrary-shaped microwave photonic filter based on stimulated Brillouin scattering in fiber using a directly modulated laser (DML). After analyzing the relationship between the spectral power density and the modulation current of the DML, we manage to precisely adjust the optical spectrum of the DML, thereby controlling the Brillouin filter response arbitrarily for the first time, to the best of our knowledge. The filter performance is evaluated by amplifying a 500 Mb/s non-return-to-zero on-off keying signal using a 1 GHz rectangular filter. The comparison between the proposed DML approach and the previous approach adopting a complex IQ modulator shows similar filter flexibility, shape fidelity, and noise performance, proving that the DML-based Brillouin filter technique is a cost-effective and valid solution for microwave photonic applications. PMID- 29028019 TI - Tunable spin Hall effect of light with graphene at a telecommunication wavelength. AB - The spin Hall effect of light (SHEL) has been widely studied for manipulating spin-polarized photons. In this Letter, we present a mechanism to tune the spin shift of the SHEL electrically at 1550 nm by means of introducing a graphene layer. The spin shift is quite sensitive to a graphene layer near the Brewster angle for horizontal polarization incidence and can be dynamically tuned by varying the Fermi energy of graphene. We find that the position of the Brewster angle and the value of the spin shift are decided by the real and imaginary parts of graphene conductivity, respectively. In addition, two different tuned regions have been revealed: one is the "step-like switch" region where the spin shift switches between two values, and the other is the "negative modulation" region where the spin shift declines gradually as the Fermi energy increases. These findings may provide a new paradigm for a tunable spin photonic device. PMID- 29028020 TI - Coherent solid-state LIDAR with silicon photonic optical phased arrays. AB - We present, to the best of our knowledge, the first demonstration of coherent solid-state light detection and ranging (LIDAR) using optical phased arrays in a silicon photonics platform. An integrated transmitting and receiving frequency modulated continuous-wave circuit was initially developed and tested to confirm on-chip ranging. Simultaneous distance and velocity measurements were performed using triangular frequency modulation. Transmitting and receiving optical phased arrays were added to the system for on-chip beam collimation, and solid-state beam steering and ranging measurements using this system are shown. A cascaded optical phase shifter architecture with multiple groups was used to simplify system control and allow for a compact packaged device. This system was fabricated within a 300 mm wafer CMOS-compatible platform and paves the way for disruptive low-cost and compact LIDAR on-chip technology. PMID- 29028021 TI - Intensity noise suppression in mode-locked fiber lasers by double optical bandpass filtering. AB - We show that the relative intensity noise (RIN) of a mode-locked fiber laser can be suppressed below a -140 dB/Hz level for the entire >20 Hz offset frequency range by a proper combination of intra-cavity and extra-cavity optical bandpass filters. When a 12-nm-bandwidth intra-cavity filter and a 16-nm-bandwidth extra cavity filter are employed for a polarization-maintaining-nonlinear-amplifying loop-mirror (PM-NALM)-based Er-fiber laser, the RIN spectrum level is suppressed by ~30 dB in the low offset frequency range. The resulting integrated rms RIN is only 0.0054% [1 Hz-1 MHz]-to our knowledge, one of the lowest integrated RIN performances for any mode-locked laser reported so far. Besides the simplicity, this double-filtering approach has an additional advantage: unlike active pump laser feedback methods, it does not have any resonant peaks in the stabilized RIN spectrum. In addition to the RIN suppression, with intra-cavity bandpass filtering, the integrated rms timing jitter is also reduced from 7.29-fs (no filter) to 2.95-fs (12-nm intra-cavity filter) [10 kHz-1 MHz] in the soliton PM NALM laser. PMID- 29028022 TI - Continuous tunable broadband emission of fluorphosphate glasses for single component multi-chromatic phosphors. AB - A kind of Sn2+/Mn2+ co-doped fluorphosphate (FP) glasses that served as single component continuous tunable broadband emitting multi-chromatic phosphors are developed for the first time. Importantly, these FP glasses have high thermal conductivity (3.25-3.70 W/m.K) and good chemical stability in water (80 degrees C). By combining with commercially available UV-LEDs directly, the emission colors can be tuned from blue/cold-white to warm-white/red through the energy transfer from Sn2+ to Mn2+, and the broadband spectra covering the whole visible region from 380 nm to 760 nm. Notably, the FP glass can also serve as a white light phosphor by controlling the content of SnO/MnO, which has excellent optical properties. The CIE chromaticity coordinate, color rendering index, and quantum efficiency are (0.33, 0.29), 84, and 0.952, respectively. These new phosphors, possessing good optical and chemical properties, are promising for applications in solid-state lighting devices. PMID- 29028023 TI - Study of femtosecond laser-induced circular optical properties in silica by Mueller matrix spectropolarimetry. AB - Transmission Mueller-matrix spectroscopic ellipsometry is applied to femtosecond laser-induced modifications in silica glass in the spectral range of 450-1000 nm. Within a type II regime, the modifications exhibit not only circular dichroism, but also circular birefringence. We suggest that the laser polarization orientation with respect to pulse front tilt determines the amplitude and the sign of the circular properties. By using differential decomposition of the Mueller matrix, optical rotation is revealed for the first time, to the best of our knowledge. A maximum value of the effective optical activity of 143 degrees /mm at 550 nm is found. PMID- 29028024 TI - Time-delay signature suppression in a chaotic semiconductor laser by fiber random grating induced random distributed feedback. AB - We demonstrate that a semiconductor laser perturbed by distributed feedback with random time delays from a large number of scattering centers along a fiber random grating can emit light chaotically without the time-delay signature (TDS). A theoretical model is developed based on the modified Lang-Kobayashi model to numerically explore the chaotic dynamics of the laser diode subjected to random feedback. It is predicted that the random distributed feedback destroys the phase correlated mode condition and hence suppresses the TDS. The fiber random grating is fabricated with random index modulation periods through point-by-point inscription, which introduces large numbers of phase-uncorrelated cavity modes into the semiconductor laser, leading to high dimensional chaotic dynamics and thus the concealment of the TDS. The experimentally obtained TDS value is negligible with a minimum of 0.0088, which is the smallest to date. PMID- 29028025 TI - Photoacoustic imaging methodology for the optical characterization of contact lenses. AB - We demonstrate photoacoustic microscopy as a metrology method for the optical characterization and quality control of contact lenses (CLs). Dual-wavelength excitation is applied to CLs tinted on both sides with two thin ink layers, each of them possessing distinctly different optical absorption properties. Thus, the method is capable of measuring the elevation maps of both CL surfaces during two subsequent imaging sessions and extracting the CL thickness, curvatures, and dioptric power. We show that such an easily implementable technique provides robust, high-precision, cost-effective three-dimensional imaging and characterization of both rigid and soft CLs, which renders it highly favorable for a broad range of applications. PMID- 29028026 TI - Synthesis of circularly coherent sources. AB - An experiment is presented in which a partially coherent source endowed with circular coherence is generated. The source is synthesized through a time averaging procedure, so that the mutual intensity is used as the basic correlation function. The correlation between points at different radial distances from the source center is tested by means of a Young interferometer. To confirm the perfect coherence among points along a circle concentric with the source center, the Young mask is replaced by an array of equally spaced pinholes arranged along a circle. The observed pattern is identical to that produced by the same mask, illuminated by perfectly coherent light. PMID- 29028027 TI - Fabrication of disk droplets and evaluation of their lasing action. AB - Disk resonators are difficult to create with droplets, since they self-form spheres due to the surface tension. In this study, disk (cylindrical) droplets were created by enclosing a dye (rhodamine 6G) solution in silicone rubber. Lasing actions of these droplets were examined by pulsed green laser excitation. In a large droplet (2 mm diameter), the whispering gallery mode emission was difficult to attain, since it competed with the radial or axial modes that made a round trip in the droplet. A disk droplet of 150 MUm diameter exhibited a comb like spectrum of the whispering gallery mode resonant emission. PMID- 29028028 TI - Enhanced total internal reflection using low-index nanolattice materials. AB - Low-index materials are key components in integrated photonics and can enhance index contrast and improve performance. Such materials can be constructed from porous materials, which generally lack mechanical strength and are difficult to integrate. Here we demonstrate enhanced total internal reflection (TIR) induced by integrating robust nanolattice materials with periodic architectures between high-index media. The transmission measurement from the multilayer stack illustrates a cutoff at about a 60 degrees incidence angle, indicating an enhanced light trapping effect through TIR. Light propagation in the nanolattice material is simulated using rigorous coupled-wave analysis and transfer matrix methods, which agrees well with experimental data. The demonstration of the TIR effect in this Letter serves as a first step towards the realization of multilayer devices with nanolattice materials as robust low-index components. These nanolattice materials can find applications in integrated photonics, antireflection coatings, photonic crystals, and low-k dielectric. PMID- 29028029 TI - Flat-top narrowband filters enabled by guided-mode resonance in two-level waveguides. AB - Resonant nanogratings and periodic metasurfaces express diverse spectral and polarization properties on broadside illumination by incident light. Cooperative resonance interactions may yield shaped spectra for particular applications, in contrast to a multilayer dielectric mirror. Here, we provide guided-mode resonance filters with flat-top spectra suitable for wavelength division multiplexing systems. Applying a single one-dimensional grating layer sandwiched by two waveguides, we theoretically achieve high-efficiency flat-top spectra in the near-infrared region. This result is obtained by inducing simultaneous nearly degenerate resonant modes. The resonance separation under this condition controls the width of the flat-top spectrum. This means we can implement spectral widths ranging from a sub-nanometer to several nanometers applying fundamentally the same device architecture. PMID- 29028030 TI - Mode selecting switch using multimode interference for on-chip optical interconnects. AB - A novel mode selecting switch (MSS) is experimentally demonstrated for on-chip mode-division multiplexing (MDM) optical interconnects. The MSS consists of a Mach-Zehnder interferometer with tapered multi-mode interference couplers and TiN thermo-optic phase shifters for conversion and switching between the optical data encoded on the fundamental and first-order quasi-transverse electric (TE) modes. The C-band MSS exhibits a >25 dB switching extinction ratio and < -12 dB crosstalk. We validate the dynamic switching with a 25.8 kHz gating signal measuring switching times for both TE0 and TE1 modes of <10.9 MUs. All channels exhibit less than 1.7 dB power penalty at a 10-12 bit error rate, while switching the non-return-to-zero PRBS-31 data signals at 10 Gb/s. PMID- 29028031 TI - Precise identification of graphene layers at the air-prism interface via a pseudo Brewster angle. AB - We propose a simple method for the precise identification of graphene layers at the air-prism interface via a pseudo-Brewster angle, where the horizontally polarized reflection is close to zero. We find that the pseudo-Brewster angle is sensitive to the variation of graphene layers where the pseudo-Brewster angle is approximately linearly increased about 0.5 deg as the layer numbers increased. Furthermore, the sensitivity of the pseudo-Brewster angle can be greatly enhanced and reaches 0.04 deg by eliminating the influence of the cross-polarization effect. Our scheme can provide a simple and effective method to identify the layer numbers of graphene. PMID- 29028032 TI - Proof-of-principle implementation of a quantum random number generator with independent devices and a dimension witness. AB - The random number is a paramount issue in modern science. How to estimate the genuine randomness of the data generated by a given device is a central problem. Lunghi et al. proposed a self-testing quantum random number generator from a prepare-and-measure scenario with independent devices. Based on this Letter, Han et al. proposed a more efficient method (Han16 protocol for short) to estimate the genuine randomness. Here we report a proof-of-principle realization of the Han16 protocol with a HSPS. The experimental results demonstrate that the Han16 protocol almost doubles the generation rate of the quantum random number with regard to the previous protocol. In addition, the results of the experiment show that the Han16 protocol is practical, and the experimental device can tolerate loss and noise. PMID- 29028033 TI - Flat top surface plasmon polariton beams. AB - Surface plasmon polaritons (SPPs) have emerged as powerful tools for guiding and manipulating light below the diffraction limit. In this context, the availability of flat top SPP beams displaying a constant transversal profile can allow for uniform excitation and coupling scenarios, thus opening the door to developing novel applications that cannot be achieved using conventional Gaussian SPP beams. Here, we present a rigorous theoretical description of flat top SPP beams propagating along flat metal-dielectric interfaces. This is accomplished through the use of Hermite-Gaussian SPP modes that constitute a complete basis set for the solutions of Maxwell's equations for a metal-dielectric interface in the paraxial approximation. We provide a comprehensive analysis of the evolution of the transversal profiles of these beams as they propagate, which is complemented with the study of the width and kurtosis parameters. Our results serve to enlarge the capabilities of surface plasmon polaritons to control and manipulate light below the diffraction limit. PMID- 29028034 TI - Soliton trapping and comb self-referencing in a single microresonator with chi(2) and chi(3) nonlinearities. AB - A shaped doublet pump pulse is proposed for a simultaneous octave-spanning soliton Kerr frequency comb generation and second-harmonic conversion in a single microresonator. The temporal soliton in the cavity is trapped atop a doublet pulse pedestal, resulting in a greatly expanded soliton region compared to that with a general Gaussian pulse pump. The possibility of single-microresonator comb self-referencing in a single silicon nitride microring that can facilitate compact on-chip optical clocks is demonstrated via simulation. PMID- 29028035 TI - Generation, amplification, frequency conversion, and reversal of propagation of THz photons in nonlinear hyperbolic metamaterial. AB - We propose metamaterial (MM) that supports a mixture of three or more normal and backward electromagnetic modes with equal co-directed phase velocities and mutually contra-directed energy fluxes. This enables extraordinary three-wave mixing, greatly enhanced optical parametric amplification, and frequency-changing generation of entangled photons in the reflection direction. Proof-of-principle numerical simulation of such processes is presented based on the particular example of the wave-guided terahertz waves contra-propagating in the MM made of carbon nanotubes. PMID- 29028036 TI - Synthesis and characterization of depolarizing samples based on the indices of polarimetric purity. AB - In this work, we discuss the interest of using the indices of polarimetric purity (IPPs) as a criterion for the characterization and classification of depolarizing samples. We prove how differences in the depolarizing capability of samples, not seen by the commonly used depolarization index PDelta, are identified by the IPPs. The above-stated result is analyzed from a theoretical point of view and experimentally verified through a set of polarimetric measurements. We show how the approach presented here can be useful in easily synthetizing depolarizing samples with controlled depolarizing features, just by properly combining low cost fully polarizing elements (such as linear retarders or polarizers). PMID- 29028037 TI - Hopping induced inversions and Pancharatnam excursions of C-points. AB - In this Letter, we show the acquisition of the Pancharatnam phase by a C-point singularity when it is subjected to discrete cyclic polarization transformations. The changes in state of polarizations (SOPs) are mapped onto a Poincare sphere as geodesical closed trajectories. The Pancharatnam phase acquired by a C-point is equal to the solid angle subtended by the closed trajectories at the center of the Poincare sphere. We show this by considering index hopping induced inversions of C-points. For example, a lemon from the North Pole of a Poincare sphere is first converted into a star whose location can be traced to the South Pole of the Poincare sphere and retrieved back as a lemon at the North Pole to complete a closed geodesical trajectory on the Poincare sphere. Depending on the trajectory, it is shown that the lemons (stars) acquire different amounts of the Pancharatnam phase, attributable to the amount of rotation in the SOP pattern of the lemons (stars). PMID- 29028038 TI - Hybrid optical pumping of K and Rb atoms in a paraffin coated vapor cell. AB - Dynamic hybrid optical pumping effects with a radio-frequency field-driven nonlinear magneto-optical rotation scheme are studied in a dual-species paraffin coated vapor cell. By pumping K atoms and probing Rb87 atoms, we achieve an intrinsic magnetic resonance linewidth of 3 Hz, and the observed resonance is immune to power broadening and light-shift effects. Such an operation scheme shows favorable prospects for atomic magnetometry applications. PMID- 29028039 TI - Vertically integrated spot-size converter in AlGaAs-GaAs. AB - We report on the demonstration of a spot size converter (SSC) for monolithic photonic integration at a wavelength of 850 nm on a GaAs substrate. We designed and fabricated a dual-waveguide AlGaAs chip. The design consists of a lower waveguide layer for efficient end-fire coupling to a single-mode fiber, an upper waveguide layer for high refractive index contrast waveguides, and a vertical SSC to connect the two waveguide layers. We measured a SSC conversion efficiency of 91% (or -0.4 dB) between the upper and lower waveguide layers for the TE mode at a wavelength of 850 nm. PMID- 29028040 TI - Ex vivo validation of photo-magnetic imaging. AB - We recently introduced a new high-resolution diffuse optical imaging technique termed photo-magnetic imaging (PMI), which utilizes magnetic resonance thermometry (MRT) to monitor the 3D temperature distribution induced in a medium illuminated with a near-infrared light. The spatiotemporal temperature distribution due to light absorption can be accurately estimated using a combined photon propagation and heat diffusion model. High-resolution optical absorption images are then obtained by iteratively minimizing the error between the measured and modeled temperature distributions. We have previously demonstrated the feasibility of PMI with experimental studies using tissue simulating agarose phantoms. In this Letter, we present the preliminary ex vivo PMI results obtained with a chicken breast sample. Similarly to the results obtained on phantoms, the reconstructed images reveal that PMI can quantitatively resolve an inclusion with a 3 mm diameter embedded deep in a biological tissue sample with only 10% error. These encouraging results demonstrate the high performance of PMI in ex vivo biological tissue and its potential for in vivo imaging. PMID- 29028041 TI - Comparing mode-crosstalk and mode-dependent loss of laterally displaced orbital angular momentum and Hermite-Gaussian modes for free-space optical communication. AB - There is interest in using orbital angular momentum (OAM) modes to increase the data speed of free-space optical communication. A prevalent challenge is the mitigation of mode-crosstalk and mode-dependent loss that is caused by the modes' lateral displacement at the data receiver. Here, the mode-crosstalk and mode dependent loss of laterally displaced OAM modes (LG0,+1, LG0,-1) are experimentally compared to that of a Hermite-Gaussian (HG) mode subset (HG0,1, HG1,0). It is shown, for an aperture larger than the modes' waist sizes, some of the HG modes can experience less mode-crosstalk and mode-dependent loss when laterally displaced along a symmetry axis. It is also shown, over a normal distribution of lateral displacements whose standard deviation is 2* the modes' waist sizes, on average, the HG modes experience 66% less mode-crosstalk and 17% less mode-dependent loss. PMID- 29028042 TI - Nonlinear pulse compression to 43 W GW-class few-cycle pulses at 2 MUm wavelength. AB - High-average power laser sources delivering intense few-cycle pulses in wavelength regions beyond the near infrared are promising tools for driving the next generation of high-flux strong-field experiments. In this work, we report on nonlinear pulse compression to 34.4 MUJ-, 2.1-cycle pulses with 1.4 GW peak power at a central wavelength of 1.82 MUm and an average power of 43 W. This performance level was enabled by the combination of a high-repetition-rate ultrafast thulium-doped fiber laser system and a gas-filled antiresonant hollow core fiber. PMID- 29028043 TI - Dual fluorescence-absorption deconvolution applied to extended-depth-of-field microscopy. AB - Fast imaging over large volumes can be obtained in a simple manner with extended depth-of-field (EDOF) microscopy. A standard technique of Wiener deconvolution can correct for the blurring inherent in EDOF images. We compare Wiener deconvolution with an alternative, parameter-free technique based on the dual reconstruction of fluorescence and absorption layers in a sample. This alternative technique provides significantly enhanced reconstruction contrast owing to a quadratic positivity constraint that intrinsically favors sparse solutions. We demonstrate the advantages of this technique with mouse neuronal images acquired in vivo. PMID- 29028044 TI - Field extension inside guided-mode-resonance filters under a focused beam. AB - We present a theoretical study of the mid-infrared guided mode resonance spectral filters made of two subwavelength metallic gratings and a dielectric waveguide under a focused beam with a finite spot size. This Letter shows that, at the resonant wavelength, the lateral extension of the electromagnetic field in the waveguide is close to the width of the beam. We compare the performance of filters using gratings with a one-slit pattern and gratings with a two-slit pattern, and we show that the latter gratings (biatom gratings) provide a higher transmission and a better limitation of field extension, due to an improved angular acceptance. These results open new perspectives for pixel-sized infrared filters. PMID- 29028045 TI - LED-pumped alexandrite laser oscillator and amplifier. AB - Taking advantage of light-emitting-diode (LED) performance breakthrough driven by the lighting market, we report, to the best of our knowledge, the first LED pumped chromium-doped crystal laser oscillator and amplifier based on alexandrite crystals (Cr3+:BeAl2O4). We developed a Ce:YAG concentrator as the pumped source, illuminated by blue LEDs that can be easily power scaled. With 2200 LEDs (450 nm), the Ce:YAG concentrator can deliver to the gain medium up to 268 mJ at 10 Hz at 550 nm with a irradiance of 8.5 kW/cm2. We demonstrate, in oscillator configuration, an LED-pumped alexandrite laser delivering an energy of 2.9 mJ at 748 nm in free running operation. In the cavity, we measured a double-pass small signal gain of 1.28, which is in good agreement with numerical simulations. As an amplifier, the system demonstrated to boost a CW Ti:sapphire laser by a factor of 4 at 750 nm in eight passes with a large tuning range from 710 nm to 800 nm. PMID- 29028046 TI - On the manifestation of higher-order nonlinearities in a noble gas medium undergoing strong ionization. AB - While there is a consensus that higher-order effects beyond chi(3) are present also in high-intensity light-matter interactions, when and how they become apparent needs further study. The central question addressed in this Letter is whether it is possible to design a situation in which they show up before being completely masked by the electrons freed by a high-intensity field. The second question we attempt to answer is how much such observations, if and when feasible, can reveal about the nature of the nonlinear polarization. We answer the first question in the affirmative, but our comparative simulations indicate that distinguishing the higher-order nonlinearity from the third-order polarization can be extremely challenging. We also briefly discuss the implications for the interpretation of the measured values of the nonlinear index. PMID- 29028047 TI - Chip-scale nanophotonic switch based on a waveguide-metamaterial coupling mechanism. AB - We demonstrate a simple and effective waveguide-metamaterial coupling mechanism to achieve switching control of the fundamental TE mode propagation in a silicon photonic stripe waveguide. The metamaterial is made of vertically stacked alternating ITO/Si layers and, theoretically, can be switched between transparent and absorptive regimes via modifying the carrier concentration of the ITO layers. In addition to its small footprint and CMOS-compatible fabrication, simulation results indicate that the optical switch features a high modulation depth (MD) of 27.8 dB, low insertion losses of 0.004 dB, and a wide operating bandwidth of 300 nm where the MD is >24.6 dB. We expect that this mechanism is a good candidate for designing high-performance and ultra-compact photonic devices in densely integrated nanophotonic circuits and computation systems. PMID- 29028048 TI - Fine-structure oscillations of noise-like pulses induced by amplitude modulation of nonlinear polarization rotation. AB - The generation and evolution processes of noise-like pulses (NLPs) in an all normal-dispersion nonlinear polarization rotation (NPR) mode-locked Yb-doped fiber laser are numerically and experimentally investigated. We demonstrate that the amplitude modulation induced by reverse saturable absorption and the peak power-limiting effect of the NPR plays a key role in the formation of fine structure oscillations of NLPs. The width variation of the NLPs is also discussed in detail. PMID- 29028049 TI - Open-cavity fiber laser with distributed feedback based on externally or self induced dynamic gratings. AB - Dynamic population inversion gratings induced in an active medium by counter propagating optical fields may have a reverse effect on writing laser radiation via feedback they provide. In this Letter we report, to the best of our knowledge, on the first demonstration of an open-cavity fiber laser in which the distributed feedback is provided by a dynamic grating "written" in a Yb-doped active fiber, either by an external source or self-induced via a weak (~0.1%) reflection from an angle-cleaved fiber end. It has been shown that meters-long dynamic grating is formed with a narrow bandwidth (<50 MHz) and a relatively high-reflection coefficient (>7%) securing single-frequency operation, but the subsequent hole-burning effects accompanied by new grating formation lead to the switching from one longitudinal mode to another. providing a regular pulse-mode dynamics. As a result, periodically generated pulse trains cover a spectrum range of several terahertz delivering millions of cavity modes in sequent pulses. PMID- 29028050 TI - Performance optimization of PM-16QAM transmission system enabled by real-time self-adaptive coding. AB - We experimentally demonstrate self-adaptive coded 5*100 Gb/s WDM polarization multiplexed 16 quadrature amplitude modulation transmission over a 100 km fiber link, which is enabled by a real-time control plane. The real-time optical signal to-noise ratio (OSNR) is measured using an optical performance monitoring device. The OSNR measurement is processed and fed back using control plane logic and messaging to the transmitter side for code adaptation, where the binary data are adaptively encoded with three types of low-density parity-check (LDPC) codes with code rates of 0.8, 0.75, and 0.7 of large girth. The total code-adaptation latency is measured to be 2273 ms. Compared with transmission without adaptation, average net capacity improvements of 102%, 36%, and 7.5% are obtained, respectively, by adaptive LDPC coding. PMID- 29028051 TI - Flexible femtosecond inscription of fiber Bragg gratings by an optimized deformable mirror. AB - The period of fiber Bragg gratings is adapted by shaping the wavefronts of ultrashort laser pulses applied in a phase mask inscription technique. A specially designed deformable mirror, based on a dielectric substrate to withstand high peak powers, is utilized to deform the wavefront. A shift of about 11 nm is demonstrated for a Bragg wavelength around 1550 nm. PMID- 29028052 TI - Point-by-point fabrication and characterization of sapphire fiber Bragg gratings. AB - The Letter reports the inscription of fiber Bragg gratings (FBGs) in a single crystal sapphire optical fiber via a point-by-point method by 780 nm infrared femtosecond laser pulses. Compared to phase mask exposure, the use of the point by-point method for the inscription provides a flexible way to fabricate sapphire FBGs and to make wavelength division multiplexing in sapphire fiber more practicable. The multiplexing of three cascade gratings is demonstrated, and their performance up to 1400 degrees C is tested. The permanent enhancement of reflectivity by a factor of about 5 after heat treatment and the nearly linear temperature response with a slope of 25.8 pm/ degrees C are demonstrated. PMID- 29028053 TI - Subwavelength dielectric nanorod chains for energy transfer in the visible range. AB - We report a new type of energy transfer device, formed by a dielectric nanorod array embedded in a silver slab. Such dielectric chain structures allow surface plasmon wave guiding with large propagation length and highly suppressed crosstalk between adjacent transmission channels. The simulation results show that our proposed design can be used to enhance the energy transfer along the waveguide-like dielectric nanorod chains via coupled plasmons, where the energy spreading is effectively suppressed, and superior imaging properties in terms of resolution and energy transfer distance can be achieved. PMID- 29028054 TI - Extended 9.7 nm tuning range in a MOPA system with a tunable dual grating Y branch laser. AB - In this Letter, we present a tunable Y-branch hybrid master oscillator power amplifier (MOPA) with 5.5 W output power, emitting between 973.7 and 983.4 nm. The MO is a monolithic Y-branch distributed Bragg reflector (DBR) diode laser, which is collimated and coupled into a tapered amplifier using cylindrical microlenses in a compact 25 mm*25 mm conduction cooled laser package. The wavelength spacing between the two laser branches is 2.2 nm. Each branch can be electrically tuned by up to 7.5 nm of quasi-continuous wavelength tuning, which in combination covers up to 9.7 nm of spectral range. Over this range, an output power variation of 0.5% and 0.2% is observed for the left and right arms, respectively, while maintaining a spectral width of less than 17 pm. In addition, the MOPA system can be operated as a dual-wavelength system by operating both branches simultaneously. The presented device is suitable for nonlinear frequency conversion applications. PMID- 29028055 TI - Laser-written polarizing directional coupler with reduced interaction length. AB - Integrated optical waveguides, manufactured with femtosecond laser writing (FSLW) technology, enable precise control and manipulation of light in complicated photonic chips. However, due to the intrinsically low anisotropy of FSLW waveguides, polarizing integrated devices have had a relatively large footprint. In this Letter, we demonstrate an approach based on stress-induced anisotropy, allowing us to decrease the size of polarizing directional couplers down to 3.7 mm, almost an order of magnitude shorter than previously reported. The measured extinction ratios at the wavelength of 808 nm are 16 dB and 20 dB for the horizontal and vertical polarizations, respectively. We provide a possible theoretical model for the observed effects. PMID- 29028056 TI - Coupled-resonator-induced plasmonic bandgaps. AB - By drawing an analogy with the conventional photonic crystals, the plasmonic bandgaps have mainly employed the periodic metallic structures, named as plasmonic crystals. However, the sizes of the plasmonic crystals are much larger than the wavelengths, and the large sizes considerably decrease the density of the photonic integration circuits. Here, based on the coupled-resonator effect, the plasmonic bandgaps are experimentally realized in the subwavelength waveguide resonator structure, which considerably decreases the structure size to subwavelength scales. An analytic model and the phase analysis are established to explain this phenomenon. Both the experiment and simulation show that the plasmonic bandgap structure has large fabrication tolerances (>20%). Instead of the periodic metallic structures in the bulky plasmonic crystals, the utilization of the subwavelength plasmonic waveguide-resonator structure not only significantly shrinks the bandgap structure to be about lambda2/13, but also expands the physics of the plasmonic bandgaps. The subwavelength dimension, together with the waveguide configuration and robust realization, makes the bandgap structure easy to be highly integrated on chips. PMID- 29028057 TI - Exploring the coherent interaction in a hybrid system of hollow gold nanoprisms and cyanine dye J-aggregates: role of plasmon-hybridization mediated local electric-field enhancement. AB - In this work, we probed the possibility of observing strong plasmon-exciton interactions in hollow gold nanoprism-J-aggregate nanocomposites. Several different hollow gold nanoprisms (HGNs) with different aspect ratios were synthesized. This allowed us to systematically tune the LSPR energies through the exciton energy of the PIC-J-aggregate, which in turn allowed us to have direct determination of the coupling strength of HGN-J-aggregate composites. Hybrid nanosystems were prepared by adsorbing and assembling 1,1'-diethyl-2,2'-cyanine (pseudoisocyanine or PIC) iodide onto the surface of hollow gold nanoprisms. Plasmon-exciton interactions were studied using extinction spectroscopy. The experimental results were analysed, and complemented by the results obtained from numerical simulations. Our results reveal that the HGN-PIC-J-aggregate hybrid nanosystem shows coherent coupling between the localized surface plasmons of the HGN and excitons of the PIC-J-aggregate, as obvious from the observation of a clear transparency dip and the formation of two new hybrid plexcitonic modes in the plexcitonic spectra. Anti-crossing behaviour of the plexcitonic modes, together with large Rabi splitting and coupling constant, asserts strong coupling between the plasmon and the exciton, overwhelming the decoherence effects, in our hybrid nanosystem. Analysis of the calculated near-field distribution establishes that the plasmon-hybridization mediated large electric-field enhancement holds the key to the strong coupling. PMID- 29028058 TI - Protein-protein interaction networks as a new perspective to evaluate distinct functional roles of voltage-dependent anion channel isoforms. AB - Voltage-dependent anion channels (VDACs) are a family of three mitochondrial porins and the most abundant integral membrane proteins of the mitochondrial outer membrane (MOM). VDACs are known to be involved in metabolite/ion transport across the MOM and in many cellular processes ranging from mitochondria-mediated apoptosis to the control of energy metabolism, by interacting with cytosolic, mitochondrial and cytoskeletal proteins and other membrane channels. Despite redundancy and compensatory mechanisms among VDAC isoforms, they display not only different channel properties and protein expression levels, but also distinct protein partners. Here, we review the known protein interactions for each VDAC isoform in order to shed light on their peculiar roles in physiological and pathological conditions. As proteins associated with the MOM, VDAC opening/closure as a metabolic checkpoint is regulated by protein-protein interactions, and is of pharmacological interest in pathological conditions such as cancer. The interactions involving VDAC1 have been characterized more in depth than those involving VDAC2 and VDAC3. Nevertheless, the so far explored VDAC protein interactions for each isoform show that VDAC1 is mainly involved in the maintenance of cellular homeostasis and in pro-apoptotic processes, whereas VDAC2 displays an anti-apoptotic role. Despite there being limited information on VDAC3, this isoform could contribute to mitochondrial protein quality control and act as a marker of oxidative status. In pathological conditions, namely neurodegenerative and cardiovascular diseases, both VDAC1 and VDAC2 establish abnormal interactions aimed to counteract the mitochondrial dysfunction which contributes to end-organ damage. PMID- 29028059 TI - A series of organic-inorganic hybrid compounds formed by [P2W18O62]6- and several types of transition metal complexes. AB - Five new organic-inorganic hybrid compounds based on [P2W18O62]6- (abbreviated as {P2W18}) and several types of transition metal complexes (TMCs) have been synthesized and characterized by IR, UV-Vis, XRD, cyclic voltammetry measurements and single crystal X-ray diffraction analysis. [Cu(phen)2][Cu(phen)(H2O)3][Cu(phen)2(H2O)][P2W18O62].8H2O (1) (phen = 1,10 phenanthroline) is a {P2W18} bi-supported complex of phen, while [Cu(2,2' bpy)(H2O)2]2[Cu(2,2'-bpy)2][P2W18O62].3.5H2O (2) (2,2'-bpy = 2,2'-bipyridine) is a 1-D chain structure formed by {P2W18} and copper complexes of 2,2'-bpy. [Ag(2,2'-bpy)2]5[HP2W18O62].H2O (3), [Ag(2,2'-bpy)(H2O)]2[Ag(2,2'-bpy)]2[Ag2(2,2' bpy)3][P2W18O62] (4), and [Ag(2,2'-bpy)(H2O)]3[Ag2(2,2'-bpy)3][Ag(2,2' bpy)][P2W18O62].H2O (5) are constructed from {P2W18} and silver complexes of 2,2' bpy. Compounds 4 and 5 are novel dimers of {P2W18} joined by silver complexes, while compound 3 contains two different kinds of silver complexes, forming a novel supramolecular structure. Each of the five compounds is formed by {P2W18} and more than one type of TMC. The formation mechanism of these compounds has been carefully discussed. In addition, we also synthesized two supramolecular structures based on {P2W18} and organic moieties: [H6P2W18O62](phen)5.5 (6) and [H6P2W18O62](phen)3.43H2O (7). The catalytic properties of these compounds were also tested. PMID- 29028060 TI - Molecular emulsions: from charge order to domain order. AB - Aqueous mixtures of small molecules, such as lower n-alkanols for example, are known to be micro-segregated, with domains in the nano-meter range. One consequence of this micro-segregation would be the existence of long range domain domain oscillatory correlations in the various atom-atom pair correlation functions, and subsequent pre-peaks in the corresponding atom-atom structure factors, in the q-vector range corresponding to nano-sized domains. However, no such pre-peak have ever been observed in the large corpus of radiation scattering data published so far on aqueous mixtures of small n-alkanols. By using large scale simulations of aqueous-1propanol mixtures, it is shown herein that the origin for the absence of scattering pre-peak resides in the exact cancellation of the contributions of the various atom-atom correlation pre-peaks to the total scattered intensity. The mechanism for this cancellation is due to the differences in the long range oscillatory behaviour of the correlations (beyond 1 nm), which are exactly out-of-phase between same species and cross species. This is similar to the charge order observed in ionic melts, but differs from room temperature ionic liquids, where the segregation is between charged and neutral groups, instead of species segregation. The consequences of such cancellation in the experimental scattering data are examined, in relation to the possibility of detecting micro-segregation through such methods. In the particular case of aqueous-1propanol mixtures, it is shown the X-ray scattering leads an exact cancellation, while this cancellation in neutron scattering is seen to depend on the deuteration ratio between solvent and solute. PMID- 29028061 TI - Interaction with prefibrillar species and amyloid-like fibrils changes the stiffness of lipid bilayers. AB - Evaluating the toxicity of self-assembled protein states is a key step towards developing effective strategies against amyloidogenic pathologies such as Alzheimer's and Parkinson's diseases. Such analysis is directly connected to quantitatively probing the stability of the cellular membrane upon interaction with different protein states. Using a combination of spectroscopic techniques, morphological observations, and spectral analysis of membrane fluctuations, we identify different destabilisation routes for giant unilamellar vesicles interacting with native-like states, prefibrillar species and amyloid-like fibrils of alpha-lactalbumin. These effects range from substantially lowering the bending rigidity of the membranes to irreversible structural changes and complete disruption of the lipid bilayers. Our findings clearly indicate how the wide heterogeneity in structures occurring during protein aggregation can result in different destabilisation pathways, acting on different length scales and not limited to enhanced membrane permeability. PMID- 29028062 TI - Residual stresses in colloidal gels. AB - A combination of experiments and Brownian Dynamics (BD) simulations is utilized to examine internal stresses in colloidal gels brought to rest from steady shear at different shear rates. A model colloidal gel with intermediate volume fraction is chosen where attractions between particles are introduced by adding non adsorbing linear polymer chains. After flow cessation, the gel releases the stress in two distinct patterns: at high shear rates, where shear forces dominate over attractive forces, the shear-melted gel behaves as a liquid and releases stresses to zero after flow cessation. After low shear rates, though, stresses relax only partially, similar to the response of hard sphere glasses and jammed soft particles. The balance between shear and attractive forces which determines the intensity of structural distortion controls the amplitude of the residual stresses through a universal scaling. Stress decomposition to repulsive and attractive contributions in BD simulations reveals that internal stresses mainly originate from attractive forces. Moreover, analysis of particle dynamics indicates that internal stresses are associated with sub-diffusive particle displacements on average smaller than the attraction range as such short-range displacements are not sufficient to completely erase structural anisotropy caused during the course of shear. PMID- 29028063 TI - Particle formation and growth from oxalic acid, methanesulfonic acid, trimethylamine and water: a combined experimental and theoretical study. AB - Atmospheric particles influence visibility, health and climate but the mechanisms of their formation from initial clusters and their growth to detectable particles remain largely unknown. Previous studies show that reactions of methanesulfonic acid (MSA) with ammonia and amines form particles, a process which is enhanced by water. We report here results from a combined experimental-theoretical investigation of the effect of oxalic acid (OxA) on particle formation and growth from the reaction of MSA with trimethylamine (TMA) in the absence and presence of water. The gas phase reactants were mixed in an aerosol flow reactor (1 atm, 294 K). Particle number concentrations and size distributions were measured as a function of reaction time from 0.8-12 s. The interaction of OxA with TMA with and without water does not lead to significant particle formation. When OxA is present during the reaction of MSA with TMA, there is little change (<=2 times more) in the particle number concentration but particles are larger compared to the base case of MSA with TMA alone. However, the presence of water with MSA and TMA overwhelms the effect of OxA so that OxA has no significant impact on particle number concentration or size. Results of these experiments suggest the MSA hydrate is important for particle formation and growth of the four component OxA-MSA-TMA-H2O system. These results are compared to earlier studies of the effect of OxA on the MSA-methylamine reaction and interpreted based on theoretically calculated properties of small clusters of the components. PMID- 29028064 TI - Nonequilibrium mode-coupling theory for dense active systems of self-propelled particles. AB - The physics of active systems of self-propelled particles, in the regime of a dense liquid state, is an open puzzle of great current interest, both for statistical physics and because such systems appear in many biological contexts. We develop a nonequilibrium mode-coupling theory (MCT) for such systems, where activity is included as a colored noise with the particles having a self propulsion force f0 and a persistence time taup. Using the extended MCT and a generalized fluctuation-dissipation theorem, we calculate the effective temperature Teff of the active fluid. The nonequilibrium nature of the systems is manifested through a time-dependent Teff that approaches a constant in the long time limit, which depends on the activity parameters f0 and taup. We find, phenomenologically, that this long-time limit is captured by the potential energy of a single, trapped active particle (STAP). Through a scaling analysis close to the MCT glass transition point, we show that taualpha, the alpha-relaxation time, behaves as taualpha ~ f0-2gamma, where gamma = 1.74 is the MCT exponent for the passive system. taualpha may increase or decrease as a function of taup depending on the type of active force correlations, but the behavior is always governed by the same value of the exponent gamma. Comparison with the numerical solution of the nonequilibrium MCT and simulation results give excellent agreement with scaling analysis. PMID- 29028065 TI - A Bayesian approach for estimating protein-protein interactions by integrating structural and non-structural biological data. AB - Accurate elucidation of genome wide protein-protein interactions is crucial for understanding the regulatory processes of the cell. High-throughput techniques, such as the yeast-2-hybrid (Y2H) assay, co-immunoprecipitation (co-IP), mass spectrometric (MS) protein complex identification, affinity purification (AP) etc., are generally relied upon to determine protein interactions. Unfortunately, each type of method is inherently subject to different types of noise and results in false positive interactions. On the other hand, precise understanding of proteins, especially knowledge of their functional associations is necessary for understanding how complex molecular machines function. To solve this problem, computational techniques are generally relied upon to precisely predict protein interactions. In this work, we present a novel method that combines structural and non-structural biological data to precisely predict protein interactions. The conceptual novelty of our approach lies in identifying and precisely associating biological information that provides substantial interaction clues. Our model combines structural and non-structural information using Bayesian statistics to calculate the likelihood of each interaction. The proposed model is tested on Saccharomyces cerevisiae's interactions extracted from the DIP and IntAct databases and provides substantial improvements in terms of accuracy, precision, recall and F1 score, as compared with the most widely used related state-of-the art techniques. PMID- 29028066 TI - Complex molecular surfaces and interfaces: concluding remarks. AB - This paper is derived from our concluding remarks presentation and the ensuing conversations at the Faraday Discussions meeting on Complex Molecular Surfaces and Interfaces, Sheffield, UK, 24th-26th July 2017. This meeting was comprised of sessions on understanding the interaction of molecules with surfaces and their subsequent organisation, reactivity or properties from both experimental and theoretical perspectives. This paper attempts to put these presentations in the wider context and focuses on topics that were debated during the meeting and where we feel that opportunities lie for the future development of this interdisciplinary research area. PMID- 29028067 TI - Quantum chemical and molecular dynamics modelling of hydroxylated polybrominated diphenyl ethers. AB - A series of 19 hydroxylated polybrominated diphenyl ethers (OH-PBDEs) have been studied using density functional theory (DFT) and molecular dynamics simulations with the purpose of investigating eventual correlations between their physicochemical properties and toxic action. Dissociation constants (pKa), solvation free energies and octanol-water partition coefficients (log P) have been computed. Additionally, metadynamics simulations of OH-PBDEs passing through a lipid bilayer have been carried out for four OH-PBDE species. No correlations between computed pKa values and toxicity data have been found. Medium correlations were found between partition coefficients and the ability of OH PBDEs to alter membrane potential in cell cultures, which is attributed to higher uptake of molecules with larger log P parameters. It was also demonstrated that in lipid bilayers, OH-PBDE molecules differ in their orientational distributions and can adopt different conformations which can affect the uptake of these molecules and influence the pathways of their toxic action. PMID- 29028068 TI - More than euglossines: the diverse pollinators and floral scents of Zygopetalinae orchids. AB - Floral volatile organic compounds (VOCs) play important roles in plant-pollinator interactions. We investigated the reproductive ecology and floral VOCs of Zygopetalinae orchids to understand the relationship between floral scents and pollinators. We performed focal observations, phenological censuses and breeding system experiments in eight species in southeast Brazil. Floral scents were collected and analysed using SPME/GC-MS. We performed multivariate analyses to group species according to affinities of their VOCs and define compounds associated to each plant. Dichaea cogniauxiana was pollinated by weevils which use their developing ovules, while D. pendula was pollinated by the same weevils and perfume-collecting male euglossine bees. The other species were deceit pollinated by bees. Zygopetalum crinitum was pollinated by carpenter bees, while W. warreana, Z. mackayi and Z. maxillare were bumblebee-pollinated. The latter was also pollinated by Centris confusa. Breeding system varied widely with no association to any pollinator group. Most VOCs are common to other floral scents. Zygopetalum crinitum presented an exclusive blend of VOCs, mainly composed of benzenoids. The scents of Pabstia jugosa, Promenaea xanthina and the Zygopetalum spp. were similar. The bumblebee-pollinated species have flowering periods partially overlapped, thus neither phenology nor pollinators constitute hybridization barriers among these species. Euglossines are not the only pollinators of Zygopetalinae. Different VOCs, size and lifespan of flowers are associated with distinct pollinators. A distinctive VOC bouquet may determine specialisation in carpenter bees or male euglossines within bee-pollinated flowers. Finally, visitation of deceit-pollinated flowers by perfume-collecting euglossines allows us to hypothesise how pollination by this group of bees had evolved. PMID- 29028069 TI - Acclimatization patterns in tropical reptiles: uncoupling temperature and energetics. AB - The physiological compensation of animals in changing environments through acclimatization has long been considered to be of minor importance in tropical ectotherms due to more stable climatic conditions compared to temperate regions. Contrasting this assumption are reports about a range of metabolic adjustments in tropical species, especially during the last two decades from field acclimatized animals. Metabolic rates are strongly linked to temperature in ectotherms but they also reflect energetic requirements and restrictions. We therefore postulate that the observed variety of acclimatization patterns in tropical reptiles results from an interaction of multiple influences, including food and water availability, rather than from thermal constraints alone. We present new data from two sympatric Malagasy lizards with contrasting acclimatization patterns and, complemented with an extensive literature search, discuss the variety of acclimatization patterns in tropical reptiles with regard to thermal and energetic influences. This broad consideration of constraints allows a rearrangement of apparently controversial patterns into a scheme of decreasing metabolic costs, including two new categories for selective and selective inverse acclimatization, where metabolic shifts are restricted to body temperatures below those preferred during activity. PMID- 29028070 TI - Gene expression in human adipose-derived stem cells: comparison of 2D films, 3D electrospun meshes or co-cultured scaffolds with two-way paracrine effects. AB - Finding the appropriate cues to trigger the desired differentiation is a challenge in tissue engineering when stem cells are involved. In this regard, three-dimensional environments are often compared to cells' two-dimensional culture behaviour (plastic culture dish). Here, we compared the gene expression pattern of human adipose-derived stem cells (ASC) seeded in a three-dimensional (3D) electrospun mesh and on a two-dimensional (2D) film - both of exactly the same material. Additionally, we conducted experiments with a scaffold floating above a film to investigate two-way paracrine effects (co-system). Electrospun meshes (3D scaffolds) and films (2D), consisting either of pristine poly-lactic co-glycolic acid (PLGA) or of PLGA-containing dispersed amorphous calcium phosphate nanoparticles (PLGA/aCaP), were seeded with ASCs and cultured either in Dulbecco Minimum Essential Medium (DMEM) or in osteogenic medium. After two weeks, minimum stem cell criteria markers as well as typical markers for osteogenesis, endothelial cell differentiation, adipogenesis and chondrogenesis were analysed by quantitative real-time PCR. Interestingly, mostly osteogenic genes of cells seeded on 3D meshes were upregulated compared to those on 2D films, while stem cell markers seemed to be only slightly affected. Runx2 and osteocalcin showed an especially strong upregulation under all conditions, while most other factors analysed for 2D/3D changes were highly dependent on the material composition, the culture medium and on paracrine signalling effects. The beneficial 3D environment for stem cells found in many studies has therefore not to be attributed to the third dimension alone and should carefully be compared to 2D films fabricated of the same material. Furthermore, paracrine interactions triggering differentiation are not negligible. PMID- 29028071 TI - How to isolate a ready-to-use adipose-derived stem cells pellet for clinical application. AB - Adipose-derived stem cells (ASCs) are multipotent mesenchymal stem cells (MSCs) that show definitive stem cell characteristics such as plastic adherence in culture, ability to maintain multipotency upon in vitro expansion, and self renewal capacity. ASCs are particularly promising for use in regenerative medicine because they can be harvested easily from adipose tissue by standard liposuction, with minimal donor site morbidity. Since ASCs do not necessitate ex vivo expansion to obtain clinically significant cell numbers, it is critical to identify a standardized method that maximizes the number of ASCs collected. Based on current literature, there is no standardized method to isolate ASCs for clinical application. Furthermore, clinical studies involving ASCs often show inconsistencies in the reported results. Such studies often use research-derived isolation protocols, which are complex, time-consuming, and involve the use of chemical and animal-derived reagents. In this paper, we present an in-depth review of the available data on ASC isolation protocols. Moreover, we describe our isolation protocol that allows the collection of a ready-to-use ASC pellet for clinical application. PMID- 29028072 TI - Vitamin D in human reproduction: the more, the better? An evidence-based critical appraisal. AB - OBJECTIVE: Vitamin D is a fat-soluble secosteroid hormone that regulates calcium, magnesium, and phosphate homeostasis and plays a pivotal role as antiproliferative and immunomodulatory mediator. Considering the different sources of synthesis and dietary intake as well as the pleiotropic actions in extremely diverse (micro)environments of the body, the supplementation of this Vitamin should be carefully evaluated taking into account the several pathways that it regulates. In the current brief review, we aimed to summarize the available evidence about the topic, in order to suggest the best evidence-based supplementation strategy for human reproduction, avoiding the unuseful (and sometimes hazardous) empiric supplementation. MATERIALS AND METHODS: Narrative overview, synthesizing the findings of literature retrieved from searches of computerized databases. RESULTS: Accumulating evidence from in vitro fertilization (IVF) trials suggests that fertilization rate decreases significantly with increasing levels of 25OH-D in follicular fluid; in addition, Vitamin D levels in the follicular fluid are negatively correlated to the quality of embryos and the higher values of Vitamin D are associated with lower possibility to achieve pregnancy. Both low and high Vitamin D serum concentrations decrease not only spermatozoa count, but their progressive motility as well as increase morphological abnormalities. Finally, studies in animal models found that severe hypervitaminosis D can reduce the total skeletal calcium store in embryos and may compromise the postnatal survival. CONCLUSIONS: Based on the retrieved data, we solicit to be extremely selective in deciding for Vitamin D supplementation, since its excess may play a detrimental role in fertility. PMID- 29028073 TI - Polyphenol epigallocatechin-3-gallate alleviates high glucose-induced H9C2 cell damage through PI3K/Akt pathway. AB - OBJECTIVE: The aim of this work was to study the protective effect of polyphenol epigallocatechin-3-gallate (EGCG) on high glucose-induced oxidative damage of H9C2 cells and to investigate the relationship between this effect and phosphatidyl inositol 3 kinase-serine/threonine kinase (P13K/Akt) signal transduction pathway. MATERIALS AND METHODS: H9C2 cells were used as objects of study, 350 mM glucose serum-free medium was used as the high glucose molding condition, and LY294002 (10 MUM) was used as the PI3K/Akt inhibitor. 3-(4,5 dimethylthiazol-2-yl)2,5-diphenyl tetrazolium bromide (MTT) assay was used to detect the cell viability, lactate dehydrogenase (LDH) assay was used to detect the cytotoxicity, flow cytometry was used to detect the proportion of cell apoptosis, and Western blotting was used to detect the expressions of cell associated proteins. RESULTS: Cell viability was reduced and cell apoptosis was increased by 350 mM high glucose. The high glucose-induced apoptosis was alleviated and the Akt expression in cells was increased by EGCG. The protective effect of EGCG was reduced after inhibition of PI3K/Akt pathway. CONCLUSIONS: EGCG protects H9C2 cells from high glucose-induced damage. EGCG plays the protective effect through inducing the PI3K/Akt pathway activation. PMID- 29028074 TI - Efficacy and safety of 5% lidocaine-medicated plasters in localized pain with neuropathic and/or inflammatory characteristics: an observational, real-world study. AB - OBJECTIVE: Based on clinical study results, 5% lidocaine-medicated plaster (5% LMP) is currently recommended for the treatment of localized peripheral neuropathic pain, such as post-herpetic neuralgia (PHN). However, its effective action, as well as the high safety, have indeed led to its use in clinical practice for pain conditions with similar pathophysiological mechanisms. In this study, the efficacy and safety of 5% LMP were investigated in patients with localized pain with neuropathic and/or inflammatory characteristics, such as PHN, post-traumatic/surgical or musculoskeletal pain. PATIENTS AND METHODS: 503 patients with localized pain treated with 5% LMP were evaluated at baseline (T0), after 30 days (T30) and after 60 days (T60). The primary endpoint was number and proportion of 30% responders at T60, whereas secondary endpoints included number and proportion of 30% responders at T30, mean pain intensity, mean extension of the painful area, dynamic mechanical allodynia and quality of sleep. Evaluations were assessed in all patients and subgroups based on different clinical entities. Concomitant treatments and adverse reactions were also recorded. RESULTS: 72% and 90% of all patients responded to 5% LMP treatment at T30 and T60, respectively. Comparable results were also obtained in subgroups such as PHN patients (72% and 68% at T30 and T60, respectively), and musculoskeletal pain (73% and 83% at T30 and T60, respectively). The mean pain intensity, as well as the extension of the painful area, significantly decreased during the study, in all patients and each subgroup. In addition, secondary endpoints significantly improved at each time point compared with baseline, in all groups. CONCLUSIONS: The effectiveness and safety of 5% LMP were shown in localized pain conditions such as neuropathic and, importantly, in musculoskeletal pain, a condition never investigated with this product. This field-practice study suggests that topical pain-reducing strategies such as 5% LMP could be effective in neuropathic and/or inflammatory, localized pain conditions. PMID- 29028075 TI - Safety of oral alpha-lipoic acid treatment in pregnant women: a retrospective observational study. AB - OBJECTIVE: Alpha-lipoic acid is a natural molecule, which directly or by means of its reduced form, dihydrolipoic acid, exerts antioxidant, anti-inflammatory and immunomodulatory activities, very helpful also in preventing miscarriage and preterm delivery. Used as dietary supplement alpha-lipoic acid was demonstrated to be safe for living organisms even when administered at high doses. However, no study was made so far to verify the safety of its continuous administration on a substantial number of pregnant women. The present investigation was performed to answer this issue. PATIENTS AND METHODS: An observational retrospective study was carried out analyzing 610 expectant mothers. They had been treated daily by oral route with 600 mg alpha-lipoic acid, for at least 7 weeks during gestation. The primary outcome was to verify alpha-lipoic acid safety in the mother and infant. Maternal safety was assessed by monitoring for adverse reactions, physical and clinical examination, including a morbidity assessment. Laboratory and clinical examinations were performed monthly. Neonatal safety was assessed by the evaluation of birth weight, gestational age, Apgar scores, neonatal death with the related cause of death. Data collected from the Birth Registry of Campania Region were used as control. RESULTS: This study provided a very clear and reassuring picture about the safety of alpha-lipoic acid oral treatment during pregnancy. No adverse effect was noticed in mothers or newborns. The two sets of monitored data, from treated and controls, were completely superimposable or, in some cases, better in alpha-lipoic acid group. CONCLUSIONS: Our results open a reassuring scenario regarding the administration of alpha-lipoic acid during pregnancy. PMID- 29028076 TI - Intestinal probiotics in relieving clinical symptoms of severe hand, foot, and mouth disease and potential mechanism analysis. AB - OBJECTIVE: In this prospective cohort study, the efficacy and action mechanism of an intestinal probiotic formulation, Golden Bifid, in severe hand, foot, and mouth disease (HFMD) were determined in 63 consecutively admitted patients successfully treated in the Pediatrics Emergency Department of our hospital. PATIENTS AND METHODS: All patients had a persistent fever; 43 patients had rashes on hands, feet, crissum, and hips; and 45 patients had neurological signs and symptoms. Patients were treated with standard supportive therapy along with ventilator-assisted respiration combined with bedside hemofiltration for removal of circulatory toxins and to achieve acid-base equilibrium and electrolyte stability. Golden Bifid was orally administered for 2 weeks, and vaccination was performed after patients were in stable condition. Additional supportive nursing care was also provided. Patients were categorized into the effective treatment (n = 40) and ineffective treatment (n = 23) groups. RESULTS: Serum levels of proinflammatory factors [interleukin (IL)-1beta, IL-6, tumor necrosis factor alpha, and interferon-gamma] were significantly decreased and those of anti inflammatory factors (IL-13, IL-4, and IL-10) were significantly increased after treatment in the effective treatment group. In contrast, in the ineffective treatment group, serum proinflammatory factor levels were significantly increased and serum anti-inflammatory factor levels were significantly decreased. Between group difference was significant. After treatment, serum D-lactic acid, diamine oxidase, and endotoxin levels were significantly decreased in the effective group and significantly increased in the ineffective group by intra- and inter-group comparisons. CONCLUSIONS: Intestinal probiotics were effective in relieving clinical symptoms of severe HFMD, maintaining intestinal immunity and anti inflammatory responses, and enhancing intestinal barrier function, with better safety and efficacy, which should be further evaluated for more extensive clinical applications. PMID- 29028077 TI - Urinary kidney injury molecule-1 and neutrophil gelatinase-associated lipocalin as early biomarkers for predicting vancomycin-associated acute kidney injury: a prospective study. AB - OBJECTIVE: Previous studies have demonstrated that urinary kidney injury molecule 1 (uKIM-1) and neutrophil gelatinase-associated lipocalin (uNGAL) were superior to serum creatinine (Scr) in detecting acute kidney injury (AKI), but their ability to predict clinical vancomycin-associated AKI has not been investigated. This study aimed to investigate the abilities of uKIM-1 and uNGAL individually and in combination to predict vancomycin-associated AKI. PATIENTS AND METHODS: Scr, uKIM-1, and uNGAL were measured on the day before and days 1, 2, and 3 of vancomycin therapy in a generalized adult population. Levels of these biomarkers between AKI and non-AKI groups were comparatively analyzed. Predictive performances were evaluated by receiver operating characteristic curve (ROC) analysis. RESULTS: A total of 87 patients were enrolled, and among them, 11 (12.6%) patients developed AKI. Urinary KIM-1 and NGAL levels in the AKI group were higher than in the non-AKI group at all time points (p < 0.05), and the areas under the receiver operating characteristic curves (AUC) were 0.849 (95% confidence interval [CI] 0.750-0.948) for uKIM-1 and 0.824 (95% CI 0.726-0.922) for uNGAL, with cut-off values of 1.72 ng/mL and 9.07 ng/mL respectively. The AUC of uKIM-1 and uNGAL combined was 0.852 (95% CI 0.754-0.949), and the sensitivity and specificity were 90.9% and 75.0%, respectively. CONCLUSIONS: Urinary KIM-1 and NGAL could efficiently discriminate patients with or without vancomycin associated AKI earlier than Scr, and the combined urinary biomarkers showed fair discrimination compared with the individual biomarkers. PMID- 29028078 TI - A natural pharma standard supplement formulation to control treatment-related toxicity and oxidative stress in genitourinary cancer: a preliminary study. AB - OBJECTIVE: Oncological treatments are associated with toxicities that may decrease compliance to treatment in most genitourinary cancer patients. Supplementation with pharmaceutical-standardized supplement may be a supplementary method to control the side effects after chemo- and radiotherapy and the increased oxidative stress associated to treatments. This registry study evaluated a natural combination of supplements containing curcumin, cordyceps, and astaxanthin (OncotrisTM) used as supplementary management in genitourinary cancer patients who had undergone oncological therapy. PATIENTS AND METHODS: Patients with genitourinary cancers (prostate or bladder malignancies) who had undergone and completed cancer treatments (radiotherapy, chemotherapy or intravesical immunotherapy with increased oxidative stress and residual symptoms) were recruited in this registry, supplement study. Registry subjects (n = 61) freely decided to follow either a standard management (SM) (control group = 35) or SM plus oral daily supplementation (supplement group = 26). Evaluation of severity of treatment-related residual side effects, blood count test, prostate specific antigen (PSA) test and plasma free radicals (oxidative stress) were performed at inclusion and at the end of the observational period (6 weeks). RESULTS: Two patients dropped out during the registry. Therefore, the analysis included 59 participants: 26 individuals in the supplementation group and 33 in the control group. In the supplement group, the intensity of signs and symptoms (treatment-related) and residual side effects significantly decreased at 6 weeks: minimal changes were observed in controls. Supplementation with OncotrisTM was associated with a significant improvement in blood cell count and with a decreased level of plasmatic PSA and oxidative stress. CONCLUSIONS: Naturally derived supplements, specifically OncotrisTM (patent pending), could support the body to overcome the treatment-related toxicities - and the relative oxidative stress in cancer patients. PMID- 29028079 TI - Potency on lowering serum uric acid in gout patients: a pooled analysis of registrative studies comparing febuxostat vs. allopurinol. AB - OBJECTIVE: Hyperuricemia leading to urate crystal formation in tissues represents the pathophysiological mechanism of gout. Guidelines recommend a therapeutic target of serum urate concentration (sUA) <6 mg/dL, or even lower (<=5 mg/dL) in patients with large deposits. We conducted an analysis with the aim to achieve additional insights into the urate-lowering efficacy of two xanthine oxidase inhibitors, allopurinol and febuxostat. PATIENTS AND METHODS: This was a pooled analysis of phase III trials on allopurinol and febuxostat, including 4101 patients with gout and hyperuricemia. The efficacy outcomes were: mean reduction of sUA concentration from baseline; number of patients with target sUA levels (<6.0 mg/dL or <=5 mgdL); time to reach target sUA levels. RESULTS: Three registrative, phase III, randomized, multicenter, placebo-controlled/allopurinol controlled trials assessing the efficacy of febuxostat, were included. The mean reduction of sUA concentration with any dose of febuxostat was higher (-2.92+/ 2.87 mg/dL; -27%), with respect to placebo- (-0.62+/-1.84 mg/dL; -5%) and allopurinol-pooled groups (-2.41+/-2.20 mg/dL; -24%). Moreover, febuxostat showed a higher probability to achieve the recommended target sUA concentration than allopurinol [odds ratio: 2.43 (95% CI: 2.119-2.789) and 4.05 (95% CI: 3.41-4.82) for sUA levels <6 mg/dL and <=5 mg/dL, respectively]. Patients on any-dose febuxostat reached target sUA faster than allopurinol-treated patients (86.04+/ 71.47 vs. 98.76+/-70.88 days and 52.08+/-49.97 vs. 90.42+/-68.03 days for reaching sUA levels <6 mg/dL and <=5 mg/dL, respectively; p <0.001 for both comparisons). CONCLUSIONS: In patients with gout and hyperuricemia, febuxostat was significantly more effective and faster than allopurinol in obtaining the recommended target sUA levels, which were reached by a higher number of patients. Therefore, febuxostat was confirmed as an effective option for the treatment of hyperuricemia in gout. PMID- 29028080 TI - Roles of hypoxia-inducible factor-1alpha and its target genes in neonatal hypoxic pulmonary hypertension. AB - OBJECTIVE: To investigate the role of hypoxia-inducible factor-1alpha and its target genes in hypoxic pulmonary hypertension in neonates. PATIENTS AND METHODS: A total of 117 newborns were selected and divided into two groups for clinical experiments: 85 cases in the hypoxic pulmonary hypertension (HPH) group, including mild, moderate and severe subgroups, and 32 cases in the case-control group. ELISA was used to detect the serum HIF-1alpha, endothelin-1 (ET-1) and adrenomedullin (ADM) levels, and echocardiography was used to detect the dynamic changes in pulmonary artery systolic pressure (PASP), right ventricular ejection fraction (RVEF), tricuspid E peak and A peak ratio (E/A) and right ventricular Tei index. RESULTS: The average PASP level of the HPH group was significantly higher than that of the control group at 1 d and 3 d after birth (p < 0.05). The average PASP level was still higher in the severe HPH group than that in the control group at 7 d after birth, while the average levels in the mild and moderate HPH groups recovered to the normal. Compared with those in control group, RVEF and E/A of the tricuspid valve were decreased significantly in severe HPH patients (p < 0.05). The Tei indexes of the right ventricle were significantly higher in the mild, moderate and severe HPH groups than those in control group and the right ventricular Tei index was positively correlated with PASP. The levels of serum ADM, HHH-1alpha and ET-1 in all the three HPH subgroups were significantly higher than those in the control group at 1 d after birth and showed positive correlations with PASP (p < 0.05), except that serum ADM in mild HPH showed no obvious difference from the control group. The levels of serum HIF 1alpha and ADM in the severe HPH group and the ET-1 levels in the moderate and severe groups were increased significantly at 3 d after birth (p < 0.05). CONCLUSIONS: The PASP level in neonates with HPH is related to the serum HIF 1alpha, ET-1 and ADM levels, indicating that hypoxia can increase the level of HIF-1alpha, which in turn will enhance the expression of downstream target genes ET-1 and ADM, further leading to pulmonary hypertension. The right ventricular Tei index can be used to sensitively detect right ventricular dysfunction of mild, moderate and severe HPH groups. PMID- 29028081 TI - Serum YKL-40 level is correlated with apnea hypopnea index in patients with obstructive sleep apnea sindrome. AB - OBJECTIVE: Obstructive sleep apnea syndrome (OSAS) has been associated with elevated biochemical markers of inflammation. Although the exact mechanism is unknown, both sleep deprivation and hypoxemia are believed to be important causative factors. YKL-40, also known as chitinase-like protein, has been shown to be related to various inflammatory conditions including atherosclerosis, diabetes, cancer, and asthma. The present study aimed to evaluate the relationship between YKL-40 levels and the Apnea Hypopnea Index (AHI) in patients with obstructive sleep apnea syndrome. PATIENTS AND METHODS: The study was conducted at the Sleep Unit of the Namik Kemal University Research Center. From January 2013 to December 2013, 120 patients diagnosed with OSAS by polysomnography and 40 subjects without OSAS were recruited. Patients in both groups were matched by age, sex, and body mass index (BMI). They were further divided into groups of mild, moderate and severe OSAS based on their AHI value. Serum YKL-40 concentrations were measured by the enzyme-linked immunosorbent assay (ELISA). RESULTS: OSAS patients showed significantly elevated YKL-40 levels compared to the control group; 102,05 (23.14) pg/ml in the control group vs. 144.81 (65.53) pg/ml in the OSAS group. A Spearman correlation analysis showed that serum YKL-40 levels were significantly and positively correlated with AHI (r = 0.434, p < 0.001) and oxygen desaturation index (r = 0.374, p < 0.001). CONCLUSIONS: The study demonstrated that high serum YKL-40 levels correlated with the severity of OSAS and might serve as a nonspecific biomarker for prediction and progression of the disease. PMID- 29028082 TI - Evaluation of the role of 8-iso-PGF levels at multiple sites during intracranial hemorrhage in pediatric patients. AB - OBJECTIVE: The present study was planned to explore the role of 8-isomeric prostaglandinF2alpha (8-iso-PGF2alpha) levels at the multiple sites of cerebrospinal fluid in children with intracranial hemorrhage. PATIENTS AND METHODS: 90 children with intracranial hemorrhage were admitted to Surgery Intensive Care Unit (SICU) of our hospital from January to December 2013 and were selected as study subjects. They were divided into group A (n=30), group B (n=30) and group C (n=30). The group A was given conventional treatment, the group B was treated with minimally invasive puncture and the group C was treated with cerebrospinal fluid decompression. After 1 d, 2 d, 3 d, and 7 d of hospitalization, enzyme-linked immunosorbent assay (ELISA) was used to detect the 8-iso-PGF2alpha levels in peripheral blood of children in all groups. On the day of admission and 10 d after treatment, 3 groups of children were implemented with brain nuclear magnetic resonance spectroscopy for metabolite analyses. RESULTS: On the day of admission there were no significant differences in the 8-iso PGF2alpha levels among group A, B and C. Further, after 1 d, 3 d, 7 d of hospital stay, the 8-iso-PGF2alpha levels in peripheral blood showed a gradual downward trend, and decline range of the group C was greater than that of group A and B (p < 0.05). After 10 days of treatment, there were significant differences in the bilateral temporal lobe and hippocampal NAA/Creatinine (Cr), Cho/Cr, mI/Cr and NAA/mI among group A, B, and C. The survival rate of group C was higher than that of group A and B (p < 0.05). On the other hand, the prevalence of sequelae was significantly lower than that of group A and B (p < 0.05). The amount of blood loss in children with intracranial hemorrhage was positively correlated with the levels of 8-iso-PGF2alpha in peripheral blood (r = 0.546, p < 0.05) as observed by Spearman correlation analysis. CONCLUSIONS: 8-iso-PGF2alpha plays an important role in the pathogenesis of intracranial hemorrhage, and could be utilized as a biomarker of oxidative stress in children with intracranial hemorrhage. Further, cerebrospinal fluid decompression is a better method of treatment for intracranial hemorrhage. PMID- 29028083 TI - Association between advanced oxidation protein products (AOPP) and vascular calcification in uremic patients. AB - OBJECTIVE: To investigate the correlation between serum advanced oxidation protein products (AOPP) and vascular calcification in uremic patients. PATIENTS AND METHODS: The general data of included subjects were collected, and the serum AOPP, intact parathyroid hormone (iPTH), creatinine (Cre), Urea, calcium (Ca), phosphorus (P), total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterin (LDL-C), hemoglobin (Hb) and albumin (ALB) were detected. Coronary artery computed tomography (CT) scan was performed and the coronary arterial calcification score (CACS) was calculated; the whole abdomen CT scan was performed and abdominal aortic calcification index (AACI) was calculated. SPSS l9.0 software was used for data analysis. RESULTS: The coronary artery CT and detection of serum indexes showed that AOPP in positive coronary arterial calcification group was significantly increased compared with that in negative coronary arterial calcification group (59.14 +/- 14.57 vs. 37.59 +/- 5.31) MUmol/L. The whole abdomen CT and detection of serum indexes showed that AOPP in positive abdominal aortic calcification group was significantly increased compared with that in negative abdominal aortic calcification group (60.32 +/- 15.43 vs. 39.57 +/- 6.25) MUmol/L. AOPP in severe calcification group was significantly higher than negative group (70.72 +/- 18.18 vs. 39.57 +/- 6.25) MUmol/L. There were no significant differences in AOPP between hypertension and non-hypertension groups, diabetic nephropathy and non-diabetic nephropathy groups. Correlation analysis showed that AOPP of uremic patients had a significantly positive correlation with logl0[CACS+1] and had a significantly positive correlation with inferior AACI. CONCLUSIONS: AOPP in positive coronary arterial calcification group and positive abdominal aortic calcification group was higher than that in negative group and AOPP in severe calcification group was significantly higher than that in negative group. AOPP of uremic patients has a significantly positive correlation with CACS and AACI. PMID- 29028084 TI - Expression and clinical significance of aquaporin-1 and ET-1 in urine of children with congenital hydronephrosis. AB - OBJECTIVE: Congenital hydronephrosis is induced by congenital obstruction of uretero pelvic junction, bladder vesicoureteral reflux, posterior urethral valve, stricture of ureter end and ureterocyst, which is extremely apt to cause end stage renal failure in children. It becomes significant to explore the expression profile and clinical significance of aquaporin-1 (AQP-1) and ET-1 (endothelin-1) in the urine of children with congenital hydronephrosis. PATIENTS AND METHODS: 80 cases of children with congenital hydronephrosis were selected to be the observation group and another 40 cases of children with other diseases were served as control group. Pre-operative morning urine, intra-operative renal pelvis urine and morning urine at the 7th day after the operation of all the children were collected for the detection of the level of ET-1, Cr level and AQP1 in the urine. Urine various indexes of different diseases stages in children of both groups were compared. RESULTS: There was no significant difference between children with mild and children in control group (p > 0.05). In the observation group, the AQP-1 level during the operation was significantly lower than that before operation, but it was significantly higher in post-operation than that during the operation, which was still lower than that in control group (p < 0.05). Urine ET-1 level in observation group and its positive rate were significantly higher than that in control group (p < 0.05). Serum stress indexes in each stage of the observation group were significantly higher than that in control group (p < 0.05). CONCLUSIONS: The expression levels of urine AQP-1 and ET-1 of children with congenital hydronephrosis were obviously increased. The AQP 1 level during the operation was lower than that before operation. This post operation level was significantly higher than before the operation. The expression of AQP-1 and ET-1 could be used as important indexes for clinical diagnosis. PMID- 29028085 TI - Nestin and CD146 expression in metaplastic breast cancer: stem-cell therapy in need? Lessons reported from a male patient. AB - OBJECTIVE: Metaplastic breast carcinomas represent a rare subtype of breast cancer exhibiting aggressive clinical features. They appear as highly chemoresistant tumors, therefore showing poor outcome and high rates of local recurrence or distant metastasis. CASE REPORT: A 37-year-old greek man was referred to our hospital for evaluation of a locally advanced, ulcerated, fixed, irregular and hard in consistency mass covering his left breast and chest wall. Further work out with CT and biopsy of the tumor revealed a triple negative metaplastic breast cancer classified as cT4cN3cM1. The patient received first line chemotherapy and afterward a palliative resection of the tumor. The histology revealed the presence of a combined triple negative adenocarcinoma with a predominant metaplastic squamous carcinoma and a spindle cell (sarcomatoid) carcinoma of the breast. In the tissue sample stem cell markers, nestin and CD146 (MCAM) were expressed, enhancing the theory that cancer cells of this tumor could possibly harbor stem cell properties. The patient received several chemotherapy regimens but died 6 months after the initiation of treatment. CONCLUSIONS: Metaplastic breast cancer consists of cells with stem cell properties. New targeted therapies are warranted in the view of the tumor's high resistance to conventional chemotherapy. Targeting nestin and CD146 might be a promising therapy as they seem to be implicated in the EMT pathway. PMID- 29028086 TI - Downregulation of microRNA-645 suppresses breast cancer cell metastasis via targeting DCDC2. AB - OBJECTIVE: To analyze the functioning mode of miR-645 on breast cancer cell metastasis and provide therapeutic targets for breast cancer. MATERIALS AND METHODS: Quantitative Real-time PCR (qRT-PCR) assay was employed to detect miR 645 expression level. Wound healing assay and transwell assay were performed to investigate metastasis capacity of breast cancer cells. Protein levels were assessed by Western blotting assay. The target gene was predicted and verified by bioinformatics analysis and luciferase assay. RESULTS: MiR-645 was upregulated in breast cancer tissues when compared with pericarcinous tissues (n=60). Downregulated miR-645 could attenuate breast cancer cell migration and invasion capacities, as well as inhibit the process of epithelial-mesenchymal transition (EMT). DCDC2 was chosen as the target gene of miR-645 by bioinformatic analysis and Luciferase reporter assay. Moreover, the silence of DCDC2 could rescue tumor suppression role of downregulated miR-645 on breast cancer metastasis. CONCLUSIONS: Knockdown of miR-645 exerted tumor-suppressive effects on breast cancer metastasis via targeting DCDC2 in vitro, which provided an innovative and candidate target for diagnose and treatment of breast cancer. PMID- 29028087 TI - Axillary ectopic lobular carcinoma of breast: two rare case reports. AB - OBJECTIVE: The presence of ectopic or supernumerary breast tissue is a rare event, related to a not complete regression of breast tissue along the milk line. Primary ectopic breast cancer of the axilla can create many difficulties in differential diagnosis with subsequent delayed specific treatments. The incidence of ectopic breast tissue is 0.2-6%, and the axilla is the most common site involved. In this tissue, the same physiologic and pathologic changes as seen in ectopic breast tissue may occur, including carcinoma formation. PATIENTS AND METHODS: Two patients (a 56 years old and 70 years old women) came to our attention for the recent development painless nodular axillary lesions, clinically characterized by an increased thickness, irregular margins and adherence to the floors below. RESULTS: Patients underwent ultrasonography (US) and mammography (MMG) revealing non-specific features of the lesions. Magnetic resonance imaging (MRI), demonstrated margins slightly irregular and a non specific appearance of each lesion. Both patients underwent wide local excision with axillary lymph node dissection. Histological examination showed infiltrating lobular carcinomas of the breasts. CONCLUSIONS: We describe two unusual cases of ectopic axillary breast carcinoma localization. It is important a correct and fast diagnosis with a local examination, diagnostic instruments, surgical excision and histological examination. PMID- 29028088 TI - Antitumor effect of miR-27b-3p on lung cancer cells via targeting Fzd7. AB - OBJECTIVE: Lung cancer is the most common malignancy with the highest mortality rate among cancers. microRNAs (miRNAs) have been confirmed to be closely related to the physiological disorder, especially the tumor process. This study aimed to investigate the effect of miR-27b-3p on lung tumor cells. MATERIALS AND METHODS: The expressions of miR-27b-3p in lung tumors and adjacent non-tumors lung tissues were compared. We test the bonding effect of miR-27b-3p on the Fzd7 promoter, and miR-27b-3p effects on the Fzd7 expression in both NCI-H446 and A549 cells. Then, effects of miR-27b-3p and Fzd7 on these cells viability, survival and apoptosis were detected, respectively. In addition, the possible mechanism of miR-27b-3p affected these cells apoptosis was explored by analyzing the expression of apoptosis-related factors. RESULTS: We found that miR-27b-3p was low expressed in lung tumors compared to adjacent non-tumorous lung tissues. miR-27b-3p directly targeted Fzd7 promoter and negatively regulated Fzd7 expression. Fzd7 promoted NCI-H446 and A549 cells viability and survival, inhibited cells apoptosis. However, miR-27b-3p effects on these cells were quite the opposite to Fzd7. The expressions of apoptosis-related factors were associated positively with miR-27b 3p and showed a negative correlation with Fzd7 expression. CONCLUSIONS: The miR 27b-3p was lowly expressed in lung cancer tissues, and played the role of a tumor suppressor. It could promote cell apoptosis and suppress cancer cells viability and survival via down-regulating Fzd7. It suggested that miR-27b-3p might be a potential target for the prophylaxis and treatment of lung cancer. PMID- 29028089 TI - The productions of atrial natriuretic peptide and arginine vasopressin in small cell lung cancer with brain metastases and their associations with hyponatremia. AB - OBJECTIVE: Hyponatremia is one of the most frequently encountered electrolyte disorder in small cell lung cancer (SCLC) patients. It was shown that some SCLC cell lines could produce atrial natriuretic peptide (ANP) and arginine vasopressin (AVP). The aim of the study was to assess the secretion of ANP, AVP and their relative contributions to hyponatremia in SCLC patients, especially in patients with brain metastases. PATIENTS AND METHODS: In total, 194 SCLC patients including 51 patients with brain metastases were collected. The levels of ANP and AVP were measured with radioimmunoassay kits. And then their associations with serum sodium were investigated. The progression-free survival (PFS) was compared between the hyponatremia group and the normal serum sodium group. RESULTS: Serum sodium was negatively correlated with the plasma levels of ANP (r=-0.171, p=0.017) and AVP (r = -0.244, p=0.001) in all SCLC patients. In the brain metastatic subgroup, there was also a negative correlation between serum sodium and ANP (r=-0.399, p=0.004), while there was no correlation between serum sodium and AVP (r=-0.232, p=0.101). The occurrence rate of hyponatremia (serum sodium values below 135 mmol/l) in patients with brain metastases (21/51, 41.18%) was higher than that in patients without brain metastases (37/143, 25.87%) (p=0.040). The progression-free survival (PFS) in the hyponatremia group was significantly shorter than that in patients of the group without hyponatremia (p=0.010). Moreover, compared with patients which regained normal serum sodium after the treatment, the PFS of patients still with hyponatremia after the treatment was significantly shorter (p=0.049). CONCLUSIONS: ANP might play a leading role in the formation of hyponatremia of SCLC patients with brain metastases. Correcting hyponatremia timely and appropriately could improve SCLC patients' prognosis. PMID- 29028090 TI - A comparative study on inflammatory factors and immune functions of lung cancer and pulmonary ground-glass attenuation. AB - OBJECTIVE: To compare the inflammatory factors and immune functions of patients with lung cancer and pulmonary ground-glass attenuation. PATIENTS AND METHODS: A total of 108 patients with pulmonary sarcoidosis treated in our hospital were selected and randomly divided into lung cancer group (Group A, n=32), diffuse ground-glass nodule group (Group B, n=35) and solitary ground-glass nodule group (Group C, n=41) according to the diagnosis results. Levels of inflammatory factors, tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), interleukin-6 (IL-6) and interleukin-10 (IL-10), in serum were detected via enzyme-linked immunosorbent assay (ELISA); the T-lymphocyte subset levels (CD3+, CD4+, CD8+ and CD4+/CD8+) in the immune system of patients in the three groups were detected using the flow cytometer; the levels of immunoglobulins, immunoglobulin G (IgG), immunoglobulin A (IgA) and immunoglobulin M (IgM), were detected via immunoturbidimetric assay. RESULTS: There were no significant differences in the levels of TNF-alpha, IL-1beta, IL-6 and IL-10 in patients between Group A and Group B (p>0.05), but the levels in Group A and Group B were significantly higher than those in Group C (p<0.05). There were no significant differences in the levels of CD3+, CD4+, CD8+ and CD4+/CD8+ in patients between Group A and Group B (p>0.05), but the levels in Group A and Group B were significantly lower than those in Group C (p<0.05). There were no significant differences in the levels of IgG, IgA and IgM in patients between Group A and Group B (p>0.05), but the levels in Group A and Group B were significantly lower than those in Group C (p<0.05). CONCLUSIONS: There are lower inflammation and immune functions in patients with lung cancer and pulmonary ground-glass attenuation. Compared with those in patients with lung cancer and diffuse ground glass nodules, the inflammatory degree in patients with solitary ground-glass nodules is lower and the immune functions are better. Detecting the inflammatory factors and immune functions of patients can also be used as a differential diagnosis means of lung cancer. PMID- 29028091 TI - Investigation of serum miR-411 as a diagnosis and prognosis biomarker for non small cell lung cancer. AB - OBJECTIVE: Biomarkers in blood have become increasingly appreciated in the diagnosis and prognosis of non-small cell lung cancer (NSCLC). The purpose of the current study was to explore potential diagnostic and prognostic value of serum miR-411 in NSCLC patients. PATIENTS AND METHODS: 153 patients with NSCLC and 75 healthy controls were enrolled in the study. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was performed to determine the expression level of serum miR-411 in NSCLC patients and healthy controls. The association of miR-411 expression with clinicopathological factors or the prognosis of NSCLC patients was also analyzed. Patient survival was determined by telephone interview, and survival curves were plotted by using the Kaplan-Meier method and compared by the Log-rank test. Receiver operating characteristic curves was used to evaluate the sensitivity and specificity of serum miR-411. RESULTS: Our data showed that serum miR-411 levels were significantly greater in NSCLC patients than healthy controls (p < 0.001). High serum miR-411 expression was significantly associated with TNM stage (p = 0.018), lymph node status (p = 0.006) and differentiated degree (p < 0.015). Kaplan-Meier analysis showed that high serum miR-411 expression levels predicted poor survival (p = 0.0053). The area under the curve (AUC) of high expression of serum miR-411 to diagnose NSCLC was 0.835 (95% CI: 0.737-0.933, p < 0.001). Univariate and multivariate analyses suggested that high expression of miR-411 was an independent poor prognostic indicator for NSCLC patients. CONCLUSIONS: The present results suggested that detection of serum miR-411 levels may have clinical potentials as a non-invasive diagnostic/prognostic biomarker for NSCLC patients. PMID- 29028092 TI - Long non-coding RNA ROR is a novel prognosis factor associated with non-small cell lung cancer progression. AB - OBJECTIVE: The aim of the present study was to determine the expression levels of long intergenic non-protein coding RNA, regulator of reprogramming (linc-ROR) in non-small-cell lung cancer (NSCLC) patients and to further explore the prognostic value of this lncRNA. PATIENTS AND METHODS: In our investigation, we determined the expression of linc-ROR in human NSCLC tissues and matched normal lung tissues by quantitative Real-time-PCR analysis. Also, correlations between linc-ROR expression and the clinicopathological features were evaluated. Survival curves were plotted using the Kaplan-Meier method and differences in survival rates were analyzed using the log-rank test. Cox regression analyses were performed to explore the effect of linc-ROR as an independent predictor of survival. RESULTS: We found that linc-ROR had high expression in NSCLC specimens than that in matched adjacent normal lung tissues (p < 0.01). In addition, higher linc-ROR expression levels were positively correlated with advanced TNM stage (p = 0.007), positive distant metastasis (p = 0.001) and LN metastasis (p = 0.011). Furthermore, significantly shorter 5-year overall survival (OS) and disease-free survival (DFS) were observed in patients with higher expression of linc-ROR (both p < 0.001). In a multivariate Cox model, it was found that linc-ROR expression was an independent prognostic factor for both 5-years OS (p = 0.001) and 5-year DFS (p = 0.001) in NSCLC. CONCLUSIONS: Our findings indicate that linc-ROR plays an oncogenic role in NSCLC development and may function as a prognostic and predictive biomarker for NSCLC. PMID- 29028094 TI - Upregulation of miR-802 suppresses gastric cancer oncogenicity via targeting RAB23 expression. AB - OBJECTIVE: The aberrant expression of microRNAs (miRNAs) has been observed in various types of cancer. Recently, miR-802 was found to play important role in tumor progression. However, the function of miR-802 in gastric cancer (GC) remains unknown. The aim of the present study was to investigate biological effects and underlying mechanisms of miR-802 in GC. PATIENTS AND METHODS: Quantitative RT-PCR was performed to evaluate the expression level of miR-802 in GC tissues and cell lines. The in vitro cell proliferation was measured using the MTT method. Cell invasion and migration assays were performed using the transwell assay. The effects of miR-802 on tumor growth were examined using a GC xenograft model. Flow cytometry method was used to detect the effect of miR-802 in apoptosis of GC cells. Targets of miR-802 were predicted using bioinformatics and validated using luciferase reporter and Western blot analyses. RESULTS: The results showed that miR-802 was significantly down-regulated in GC tissues and cell lines. The enforced expression of miR-802 induced growth suppression and apoptosis of GC cells. Moreover, miR-802 overexpression suppressed the migration and invasion of GC cells. Bioinformatics analysis predicted that the RAB23 was a potential target gene of miR-802. The results of luciferase reporter assay demonstrated that miR-802 could directly target RAB23. Additionally, in vivo analysis, the xenograft mouse model also confirmed the suppressive effects of miR 802 on tumor growth. CONCLUSIONS: Our results are the first to demonstrate the tumor-suppressive role of miR-802 in GC. The identification of miR-802 and its novel target RAB23 will be valuable in developing therapeutic applications for GC. PMID- 29028093 TI - miR-144-3p serves as a tumor suppressor by targeting FZD7 and predicts the prognosis of human glioblastoma. AB - OBJECTIVE: Previous research indicated that miR-144-3p was associated with the regulation of the carcinogenic processes, but the role of miR-144-3p in glioblastoma (GBM) remains unclear. In this study, we aimed to analyze the role of miR-144-3p in GBM. PATIENTS AND METHODS: The expression of miR-144-3p was measured in GBM tissues and adjacent non-malignant tissues using qRT-PCR. The correlation of miR-144-3p with clinicopathological features and prognosis was also analyzed. Cell proliferation, invasion, and migration assay were applied to assess the function of miR-144-3p in vitro. Bioinformatics prediction and luciferase assays were employed to identify the predicted microRNA (miRNA) which regulates Frizzled-7 (FZD7). The levels of FZD7 and FZD7 mRNA were determined by Western blot and RT-PCR. RESULTS: The results showed that the miR-144-3p expression was significantly downregulated in tumor tissues and GBM cell lines compared with that in normal brain tissues and the normal human astrocytes. The levels of miR-144-3p were negatively correlated with the status of WHO grade and recurrence. Furthermore, patients with low serum levels of miR-144-3p had a significantly shorter median overall survival rate. Multivariate Cox regression analysis confirmed that low level of miR-144-3p expression predicted poor prognosis independently. Further function assays showed that miR-144-3p inhibited proliferation invasion and migration of GBM cells. Finally, miR-144-3p was demonstrated to bind to the wild-type 3' untranslated region of FZD7 but not with its mutant. CONCLUSIONS: The results of the present study indicate that miR-144 3p suppresses tumor metastasis by targeting FZD7. This work also provides strong evidence that miR-144-3p is an independent prognostic factor for patients with GBM. PMID- 29028095 TI - BCAR4 increase cisplatin resistance and predicted poor survival in gastric cancer patients. AB - OBJECTIVE: Gastric cancer is a common malignancy with increasing worldwide incidence, and chemotherapeutic drugs for gastric cancer are not effective. Long non-coding RNA (lncRNA) has been proved to be important in different cancer progression. In this research, we investigated whether lncRNAs have relations with drug resistance in gastric cancer to find new potential targets for therapy, which can increase the survival time of the drug-resistant gastric patient. PATIENTS AND METHODS: qRT-PCR was used to detect the expression of BCAR4 in 113 cases of gastric cancer tissue and adjacent tissue, and the clinical significance was also analyzed. MTT assays and Western blot were performed to cytologically determine the relationship between BCAR4 expression and cisplatin resistance, as well as to investigate the potential molecular mechanism involved. RESULTS: Compared with the adjacent tissues, we found that BCAR4 was highly expressed in gastric cancer tissues. We also found that the expression of BCAR4 was significantly related to the size of the tumor, clinical classification and the survival time. In cytological experiments, we found the expression of BCAR4 was enhanced in cisplatin-resistant cell strains (SGC7901/DDP). What's more, overexpression of BCAR4 in SGC7901 cells increased resistance to cisplatin while reduced BCAR4 expression increased the sensitivity of SGC7901/DDP cells to cisplatin. Western blot experiments indicated that elevated expression of BCAR4 upregulated tumor stem cell-related biomarkers via regulating Wnt signaling pathway. CONCLUSIONS: We showed that BCAR4 was closely related with the cisplatin resistant gastric cancer. It might be a promising target for treating gastric cancer and improving the efficiency of chemotherapeutic drugs. PMID- 29028096 TI - Expressions of HIF-1alpha and KISS-1 in patients with liver cancer and correlation analysis. AB - OBJECTIVE: To study the expressions of hypoxia-inducible factor-1alpha (HIF 1alpha) and tumor metastasis suppressor gene (KISS-1) in patients with liver cancer and to analyze the correlation between HIF-1alpha and KISS-1 and liver cancer. PATIENTS AND METHODS: 20 normal liver tissues and 30 liver cancer tissues in our hospital were selected. The expressions of HIF-1alpha and KISS-1 in normal liver tissues and liver cancer tissues were detected via immunofluorescence assay. The mRNA expressions of HIF-1alpha and KISS-1 in normal liver tissues and liver cancer tissues were detected via reverse transcription polymerase chain reaction (RT-PCR). The protein expressions of HIF-1alpha and KISS-1 in normal liver tissues and liver cancer tissues were detected via Western blotting. Differences of HIF-1alpha and KISS-1 expressions in normal liver tissues and liver cancer tissues were analyzed using SPSS 17.0 statistical software. RESULTS: Immunofluorescence assay, RT-PCR, and Western blotting, showed that HIF-1alpha was highly expressed in liver cancer tissues, and its expression level was significantly higher than that in normal liver tissues. However, the expression of KISS-1 in normal liver tissues was significantly higher than that in liver cancer tissues. The results of analysis of variance showed that the differences of HIF-1alpha and KISS-1 expressions in normal liver tissues and liver cancer tissues were statistically significant (p<0.01). CONCLUSIONS: The abnormal expressions of HIF-1alpha and KISS-1 are closely related to the development and progression of liver cancer, indicating that HIF-1alpha and KISS-1 have important research values in liver cancer, and the expressions of HIF-1alpha and KISS-1 can be used as the index of deterioration degree of liver cancer, providing a new clinical basis for diagnosis and treatment. PMID- 29028097 TI - MicroRNA-217 functions as a prognosis predictor and inhibits pancreatic cancer cell proliferation and invasion via targeting E2F3. AB - OBJECTIVE: Pancreatic cancer (PC) is the most malignant tumor among all the tumors in the digestive system. MiR-217 has been reported to take a critical part in various malignant tumors. The aim of this study was to explore the function of MiR-217 in pancreatic cancer and its target genes. PATIENTS AND METHODS: Twenty pairs of PC tissues and matched normal adjacent pancreatic tissues were collected. The expression of miR-217 in PC tissues and normal pancreatic tissues was detected by Real-time polymerase chain reaction (PCR). PC cells were transfected with miR-217 mimics, inhibitors and negative control, respectively. Cell Counting Kit-8 (CCK-8) assay was used to detect cell viability. Cell apoptosis was checked via Annexin V-FITC/PI apoptosis kit. The protein expression of E2F3 was detected by Western blot. To detect repression by miR-217, HEK293T cells were co-transfected with the indicated E2F3 3'-UTR luciferase reporter. RESULTS: The expression of miR-217 was reduced in PC tissues comparing to normal pancreatic tissues. Meantime, the in-vitro study revealed that miR-217 suppressed PC cell growth, invasion but promoted apoptosis. Next, we proved that E2F3 was the target of miR-217 on PC cell function. CONCLUSIONS: miR-217 suppresses PC cell growth, invasion but promotes apoptosis in vitro through targeting E2F3. The miR-217-E2F3 axis may be used for PC therapy. PMID- 29028098 TI - Down-regulation of miR-329-3p is associated with worse prognosis in patients with cervical cancer. AB - OBJECTIVE: miR-329-3p has been reported to serve as a tumor suppressor in the progression of cervical cancer (CC). The aim of this study was to investigate the clinical significance of miR-329-3p in human CC. PATIENTS AND METHODS: Quantitative RT-PCR (qRT-PCR) was used to detect miR-329-3p expression in CC tissue samples and matched normal cervical tissues. The x2 test was used to analyze the association between miR-329-3p expression and clinical features of CC patients. Moreover, we evaluated the prognostic value of miR-329-3p by Kaplan Meier survival curve and Cox regression model. RESULTS: We found that the mean expression level of miR-329-3p in CC tissues was significantly lower than the mean level in the adjacent normal tissues samples (p < 0.01). MiR-329-3p level was significantly associated with lymph node metastasis (p = 0.013), FIGO stage (p = 0.024) and distant metastasis (p = 0.001). Furthermore, a significant difference was found, that CC patients with low miR-329-3p expression level had distinctly shorter overall survival than patients with high miR-329-3p expression level (p = 0.001). Finally, multivariate analyses indicated that miR-329-3p represented an independent predictor for overall survival of CC (p = 0.04). CONCLUSIONS: These results indicated, for the first time, that down-regulation of miR-329-3p was associated with poor prognosis in CC patients. MiR-329-3p can be used as an independent factor to predict survival of patients with CC. PMID- 29028099 TI - The diagnostic value of determination of serum GOLPH3 associated with CA125, CA19.9 in patients with ovarian cancer. AB - OBJECTIVE: To evaluate the value of three tumor markers serum Golgi phosphoprotein-3 (GOLPH3), cancer antigen 125 (CA125) and cancer antigen 19-9 (CA19.9) in the diagnosis and postoperative evaluation of ovarian cancer by detecting these three markers. PATIENTS AND METHODS: A total of 187 patients were studied and included in the ovarian cancer group, benign pelvic mass group, and the normal control group. The levels of serum Golgi phosphoprotein-3 (GOLPH3), cancer antigen 125 (CA125) and cancer antigen 199 (CA19.9) were detected, respectively, and their effects on the diagnosis, evaluation, pathology typing and staging of ovarian cancer were measured. RESULTS: The sensitivity of the detection of ovarian cancer by GOLPH3 combined with CA125 and CA19.9 was higher than that by a single marker (p<0.05). The level of serum GOLPH3 in patients with serous and endometrioid carcinoma was significantly higher than that in patients with mucinous carcinoma, clear-cell carcinoma and germ cell tumor (p<0.05). There was no significant statistical difference in serum GOLPH3 level between patients with ovarian malignancies at stage III-IV and those at stage I-II (p>0.05). The levels of serum GOLPH3, CA125 and CA19.9 in patients with ovarian malignancies after surgery were significantly lower than those before surgery (p<0.05). CONCLUSIONS: The combined detection by GOLPH3, CA125, and CA19.9 may improve the diagnosis rate of ovarian epithelial cancer. GOLPH3, as a new ovarian cancer tumor marker used in clinical diagnosis, is expected to become an important indicator for the early diagnosis of ovarian cancer and the determination of clinical surgery efficacy. PMID- 29028100 TI - ZEB1 promotes prostate cancer proliferation and invasion through ERK1/2 signaling pathway. AB - OBJECTIVE: Prostate cancer is a kind of malignancy with high occurrence in the male urogenital system. However, the mechanism of the occurrence, the progression, and the metastasis of prostate cancer are still unclear. Searching for the effective molecule target is of great significance to improve the curative effect on prostate cancer. Zinc finger E box binding protein-1 (ZEB1) protein is a member of the zinc finger transcription factor family that participates in the embryonic development and formation. ZEB1 was found to be involved in the occurrence and in the development of multiple cancers, while its role in prostate cancer still needs elucidation. MATERIALS AND METHODS: Normal prostate cell line PC-3M and prostate cancer cell line DU145 were cultured in vitro and transfected by ZEB1 siRNA. ZEB1 mRNA and protein expressions were detected by real-time PCR and Western blot assay. Cell proliferation was determined by using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay. Cell migration was evaluated by transwell assay. Cell apoptosis was evaluated by caspase-3 activity. The impact of ZEB1 on extracellular signal-regulated kinase 1 and 2 (ERK1/2) signaling pathway was assessed by Western blot assay. RESULTS: ZEB1 expression significantly increased in DU145 cells compared with PC-3M cells (p<0.05). ZEB1 mRNA and protein obviously declined, cell proliferation inhibited, cell invasion suppressed, and Caspase-3 activity enhanced in DU145 cells after ZEB1 siRNA transfection (p<0.05). ZEB1 siRNA markedly decreased ERK1/2 phosphorylation in DU145 cells compared with control (p<0.05). CONCLUSIONS: Inhibition of ZEB1 promoted prostate cancer apoptosis, restrained proliferation, and suppressed invasion through down regulating ERK1/2 signaling pathway. PMID- 29028101 TI - TopBP1 promotes malignant progression and correlates with poor prognosis in osteosarcoma. AB - OBJECTIVE: Topoisomerase IIbeta binding protein 1 (TopBP1) is involved in DNA damage and replication checkpoint and has been shown to be related to tumorigenesis in many cancer types. This study aimed to evaluate the biological role and clinicopathological significance of TopBP1 in OS. PATIENTS AND METHODS: TopBP1 expression in sarcoma patients was determined through the Oncomine database, and the prognostic role of TopBP1 expression was assessed in a retrospective cohort study. CCK-8 assay and colony formation assay were employed to evaluate the effect of TopBP1 on proliferation and chemoresistance in OS cells. Cell apoptosis and cell cycle assay were used to assess the effect of TopBP1 on apoptosis and cycle of OS cells. RESULTS: We observed that TopBP1 expression was elevated not only in OS, but also in other sarcoma types including myxofibrosarcoma, liposarcoma, and leiomyosarcoma. Knockdown of TopBP1 using small interfering (si) RNA blocked cell proliferation and colony formation ability, and caused cell apoptosis as well as G1-phase arrest in OS cells. Moreover, TopBP1 knockdown decreased the chemoresistance of OS cells to both doxorubicin and cisplatin. Lastly, the retrospective cohort study showed that high TopBP1 expression was not only associated with high local recurrence and low necrosis rate, but also correlated with poor overall survival and disease-free survival of OS patients. CONCLUSIONS: Our findings indicate that TopBP1 contributes to the cell survival and chemoresistance to doxorubicin and cisplatin of OS, suggesting TopBP1 may serve as a novel target for inhibition of progression and chemotherapeutic resistance in OS patients. PMID- 29028102 TI - The ten commandments of hepatic radioembolization: expert discussion and report from Mediterranean Interventional Oncology (MIOLive) congress 2017. AB - Microsphere and particle technology represent the next-generation agents that have formed the basis of interventional oncology, an evolving subspecialty of interventional radiology. One of these platforms, yttrium-90 microspheres, is increasingly being used as a treatment modality for primary and secondary liver tumors. Due to the widespread use of radioembolization, a comprehensive review of the methodologic and technical considerations seems to be mandatory. This article summarizes the expert discussion and report from Mediterranean Interventional Oncology Live Congress (MIOLive 2017) that was held in Rome, Italy, integrating evidence-reported literature and experience-based perceptions, to assist not only residents and fellows who are training in interventional radiologists but also practicing colleagues who are approaching to this intra-arterial treatment. PMID- 29028103 TI - Expressions of IL-1alpha and MMP-9 in degenerated lumbar disc tissues and their clinical significance. AB - OBJECTIVE: To observe the expression levels of interleukin-1alpha (IL-1alpha) and matrix metalloproteinase-9 (MMP-9) in degenerated lumbar disc tissues and to investigate their clinical significance. PATIENTS AND METHODS: Fifty patients with lumbar disc degeneration received the operative treatment were divided into three groups according to the magnetic resonance imaging (MRI) results: protrusion group, extrusion group, and free group. The degenerated intervertebral disc tissues were taken, and the normal intervertebral disc tissues of 20 patients received the operative treatment due to lumbar bursting fracture, and were selected as the control group. The bone mineral densities of all patients were measured. The mRNA and protein expression levels of MMP-9 and IL-1alpha were detected via Real-time polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay (ELISA), respectively. RESULTS: The bone mass of patients with lumbar disc degeneration was significantly decreased compared with that of the control group, and the bone mass was decreased more significantly in a free group than that in protrusion group. The mRNA and protein levels in IL-1alpha and MMP-9 of patients with lumbar disc degeneration were significantly increased compared with those in control group; the mRNA and protein levels in IL-1alpha and MMP-9 of extrusion group and free group were significantly higher than those in protrusion group, and the mRNA and protein levels in IL-1alpha and MMP-9 of free group were significantly higher than those in extrusion group. CONCLUSIONS: The levels of IL-1alpha and MMP-9 in degenerated lumbar disc tissues are higher than normal levels, and the increasing levels are positively correlated with the disease condition. PMID- 29028104 TI - The influence of ovulation induction and assisted conception on maternal and perinatal outcomes of twin pregnancies. AB - OBJECTIVE: To compare obstetrical and neonatal outcomes of twin pregnancies conceived via assisted reproductive technology (ART) with those of naturally conceived ones and to investigate the influence of the ART procedure type on these parameters. PATIENTS AND METHODS: This observational study included 450 ART and 647 spontaneous twin pregnancies delivered over 15 years at a single university-based hospital of Rome, Italy. Logistic and linear regression models adjusted for confounding factors were used to evaluate the effect of ART and the type of assisted conception (IVF/ICSI, ovulation induction +/- intrauterine insemination, egg/embryo donation) on maternal and perinatal outcomes. RESULTS: The mean gestational age was significantly lower in pregnancies conceived via ART. The occurrence rates of gestational diabetes, antenatal admission, prophylactic administration of corticosteroid, very preterm delivery and neonatal intensive care unit admission were higher in the ART group. Twin pregnancies achieved via egg/embryo donation had a lower risk of maternal thrombocytopenia and cervical incompetence and were at greater risk of receiving corticosteroid prophylaxis and patent ductus arteriosus than pregnancies obtained by IVF/ICSI. Conception by ovulation induction was associated with reduced risk of hyperemesis gravidarum and longer neonatal hospitalization compared to pregnancies obtained by IVF/ICSI. CONCLUSIONS: Assisted conception was associated with adverse obstetrical outcomes and lower gestational age, but after adjustment for gestational age neonatal immediate outcomes were similar to those observed in the spontaneous group. There were no many important differences in the outcomes of twin pregnancies obtained by a different type of conception. PMID- 29028105 TI - Value of confocal laser endomicroscopy in the diagnosis of vocal cord lesions. AB - OBJECTIVE: The aim of this study was to assess the reliability and limitations of confocal laser endomicroscopy (CLE) for diagnosing lesions of the vocal cords and differentiating malignant from non-malignant lesions. PATIENTS AND METHODS: During microlaryngoscopy, the vocal cords were scanned by probe-based CLE (pCLE: a GastroFlex probe with the Cellvizio(r) laser system, Mauna Technologies, Paris, France). The video recordings were analyzed and compared with the histological results. Thirty-one representative images were extracted and presented to four medical professionals (blinded examiners) for assessment. RESULTS: The accuracy for the category malignant/nonmalignant ranged between 58.1% and 87.1%. Overall interrater reliability was 0.29. Sensitivity ranged between 45.5 and 100%, specificity between 60.0 and 100%, PPV between 38.5% and 100% and NPV between 66.7 and 100%. CONCLUSIONS: CLE is a promising method for the non-invasive diagnosis of vocal cord lesions in vivo, but factors such as small penetration depth, not available contrast media for the nuclei and subjective analyses of the images limit, at the moment, its diagnostic value. PMID- 29028106 TI - Correlation between presence of primary iris- and cilliary body cysts and intraocular pressure. AB - OBJECTIVE: The objective of this study was to examine the correlation between the presence of primary iris-ciliary cysts and the intraocular pressure. PATIENTS AND METHODS: Sixty patients with short-sightedness undergoing routine examination for laser vision correction in our hospital in 2003 were enrolled. Patients with known high intraocular pressure and risk of glaucoma were excluded from the study. A total of 119 eyes were examined by the Ultrasound Biomicroscope (UBM), and the presence of the primary iris-ciliary cysts was confirmed. Intraocular pressure was measured by using a blowing tonometer for each eye in triplicate. Through Pentacam correction of intraocular pressure using the Ehlers formula, the influence of the thickness of central cornea on intraocular pressure was excluded. RESULTS: Among all participants, 62 eyes (52.1%) were with high myopia, 57 eyes (47.9%) with low and moderate myopia, 27 eyes (22.7%) with single cyst, 20 eyes (16.8%) with multiple cysts, and 72 eyes (60.5%) were free from cysts. Moreover, the intraocular pressure was found within the normal range in 72 eyes (60.5%), and abnormally high in 47 eyes (39.5%). CONCLUSIONS: Our results showed that the presence of primary iris-ciliary cysts and the intraocular pressure were positively correlated, with a correlation coefficient of 0.235 (p = 0.01). These findings may prove useful for prediction and screening of high intraocular pressure. PMID- 29028107 TI - Platelet-rich plasma and myocardial regeneration. PMID- 29028108 TI - Effect of VEGF on neuronal degeneration and interaction between Alzheimer's disease biomarkers. AB - The article "Effect of VEGF on neuronal degeneration and interaction between Alzheimer's disease biomarkers" by H.-C. Yuan, C.-W. Jiang, L.-Y. Hou, Y.-B. Lv, X.-Z. Feng, L.-F. Guo, G. Sun, K. Liu, Y.-J. Liu, B. Xu, C.-Y. Wang, published in Eur Rev Med Pharmacol Sci 2017; 21 (16): 3649-3657 has been withdrawn. PMID- 29028109 TI - Research on the correlation of urine calcium integrin binding protein-1 and pro BNP with ischemic heart failure. AB - OBJECTIVE: To investigate the correlation between the levels of urine calcium integrin binding protein-1 (CIB1) and serum precursor N-terminal brain natriuretic peptide (pro-BNP) and ischemic heart failure. PATIENTS AND METHODS: 30 patients diagnosed as acute ischemic heart failure for the first time in our hospital from January to August 2016 were continuously selected as the observation group 1, 30 patients with chronic stable ischemic heart failure as the observation group 2, and 30 healthy volunteers as the control group. Urine CIB1 level was detected via enzyme linked immunosorbent assay (ELISA) and serum pro-BNP level was detected via radioimmunoassay. The linear correlation between the CIB1 and pro-BNP levels in observation group 1 was observed, and the diagnostic value of CIB1 and pro-BNP levels for chronic stable ischemic heart failure were analyzed using the receiver operating characteristic (ROC) curve. RESULTS: CIB1 and pro-BNP levels in the observation group 1 were significantly higher than those in the observation group 2. These levels were significantly lower in the control group (p < 0.05). In the observation group 1, CIB1 and pro BNP levels were positively correlated (p < 0.05). The diagnostic accuracy of CIB1 for chronic stable ischemic heart failure in the observation group 2 (area under the curve, AUC) was 0.854, the sensitivity was 86.6% and the specificity was 82.5%, respectively. The diagnostic accuracy of pro-BNP was 0.823, the sensitivity was 83.5% and the specificity was 85.9%, respectively. CONCLUSIONS: There is a significant correlation between the urine CIB1 and serum pro-BNP levels in patients with acute ischemic heart failure. In patients with chronic stable ischemic heart failure, the diagnostic value of urine CIB1 outperforms that of serum pro-BNP, which still needs further study. PMID- 29028111 TI - DNA methylation of methylation complex genes in relation to stress and genome wide methylation in mother-newborn dyads. AB - OBJECTIVES: Early life stress is known to have enduring biological effects, particularly with respect to health. Epigenetic modifications, such as DNA methylation, are a possible mechanism to mediate the biological effect of stress. We previously found correlations between maternal stress, newborn birthweight, and genome-wide measures of DNA methylation. Here we investigate ten genes related to the methylation/demethylation complex in order to better understand the impact of stress on health. MATERIALS AND METHODS: DNA methylation and genetic variants at methylation/demethylation genes were assayed. Mean methylation measures were constructed for each gene and tested, in addition to genetic variants, for association with maternal stress measures based on interview and survey data (chronic stress and war trauma), maternal venous, and newborn cord genome-wide mean methylation (GMM), and birthweight. RESULTS: After cell type correction, we found multiple pairwise associations between war trauma, maternal GMM, maternal methylation at DNMT1, DNMT3A, TET3, and MBD2, and birthweight. CONCLUSIONS: The association of maternal GMM and maternal methylation at DNMT1, DNMT3A, TET3, and MBD2 is consistent with the role of these genes in establishing, maintaining and altering genome-wide methylation patterns, in some cases in response to stress. DNMT1 produces one of the primary enzymes that reproduces methylation patterns during DNA replication. DNMT3A and TET3 have been implicated in genome-wide hypomethylation in response to glucocorticoid hormones. Although we cannot determine the directionality of the genic and genome wide changes in methylation, our results suggest that altered methylation of specific methylation genes may be part of the molecular mechanism underlying the human biological response to stress. PMID- 29028110 TI - Melanoma staging: Evidence-based changes in the American Joint Committee on Cancer eighth edition cancer staging manual. AB - Answer questions and earn CME/CNE To update the melanoma staging system of the American Joint Committee on Cancer (AJCC) a large database was assembled comprising >46,000 patients from 10 centers worldwide with stages I, II, and III melanoma diagnosed since 1998. Based on analyses of this new database, the existing seventh edition AJCC stage IV database, and contemporary clinical trial data, the AJCC Melanoma Expert Panel introduced several important changes to the Tumor, Nodes, Metastasis (TNM) classification and stage grouping criteria. Key changes in the eighth edition AJCC Cancer Staging Manual include: 1) tumor thickness measurements to be recorded to the nearest 0.1 mm, not 0.01 mm; 2) definitions of T1a and T1b are revised (T1a, <0.8 mm without ulceration; T1b, 0.8 1.0 mm with or without ulceration or <0.8 mm with ulceration), with mitotic rate no longer a T category criterion; 3) pathological (but not clinical) stage IA is revised to include T1b N0 M0 (formerly pathologic stage IB); 4) the N category descriptors "microscopic" and "macroscopic" for regional node metastasis are redefined as "clinically occult" and "clinically apparent"; 5) prognostic stage III groupings are based on N category criteria and T category criteria (ie, primary tumor thickness and ulceration) and increased from 3 to 4 subgroups (stages IIIA-IIID); 6) definitions of N subcategories are revised, with the presence of microsatellites, satellites, or in-transit metastases now categorized as N1c, N2c, or N3c based on the number of tumor-involved regional lymph nodes, if any; 7) descriptors are added to each M1 subcategory designation for lactate dehydrogenase (LDH) level (LDH elevation no longer upstages to M1c); and 8) a new M1d designation is added for central nervous system metastases. This evidence based revision of the AJCC melanoma staging system will guide patient treatment, provide better prognostic estimates, and refine stratification of patients entering clinical trials. CA Cancer J Clin 2017;67:472-492. (c) 2017 American Cancer Society. PMID- 29028113 TI - The role of PLIN protein in healthy lipid storage and lipid droplet expansion. PMID- 29028115 TI - Ecological correlates of seed dormancy differ among dormancy types: a case study in the legumes. PMID- 29028114 TI - Trichodysplasia spinulosa associated with HIV infection: clinical response to acitretin and valganciclovir. PMID- 29028116 TI - Effect of beta-mannanase domain from Trichoderma reesei on its biochemical characters and synergistic hydrolysis of sugarcane bagasse. AB - BACKGROUND: beta-mannanase is a key enzyme for hydrolyzing mannan, a major constituent of hemicellulose, which is the second most abundant polysaccharide in nature. Different structural domains greatly affect its biochemical characters and catalytic efficiency. However, the effects of linker and carbohydrate-binding module (CBM) on beta-mannanase from Trichoderma reesei (Man1) have not yet been fully described. The present study aimed to determine the influence of different domains on the expression efficiency, biochemical characteristics and hemicellulosic deconstruction of Man1. RESULTS: The expression efficiency was improved after truncating CBM. Activities of Man1 and Man1DeltaCBM (CBM) in the culture supernatant after 168 h of induction were 34.5 and 42.9 IU mL-1 , although a value of only 0.36 IU mL-1 was detected for Man1DeltaLCBM (lacking CBM and linker). Man1 showed higher thermostability than Man1DeltaCBM at low temperature, whereas Man1DeltaCBM had a higher specificity for galactomannan (Km = 2.5 mg mL-1 ) than Man1 (Km = 4.0 mg mL-1 ). Both Man1 and Man1DeltaCBM could synergistically improve the hydrolysis of cellulose, galactomannan and pretreated sugarcane bagasse, with a 10-30% improvement of the reducing sugar yield. CONCLUSION: Linker and CBM domains were vital for mannanase activity and expression efficiency. CBM affected the thermostability and adsorption ability of Man1. The results obtained in the present study should help guide the rational design and directional modification of Man with respect to improving its catalytic efficiency. (c) 2017 Society of Chemical Industry. PMID- 29028117 TI - Comparison of Weight-Based Dosing Strategies for Intravenous Immunoglobulin in Patients with Hematologic Malignancies. AB - STUDY OBJECTIVE: Intravenous immunoglobulin (IVIG) is a weight-based therapy used to treat and prevent infections in patients with hematologic malignancies. IVIG doses were calculated traditionally using actual body weight (ABW). However, limited pharmacokinetic data suggest dosing strategies using ideal body weight (IBW) or adjusted body weight (adjBW) may be appropriate given the small volume of distribution of IVIG. Our objective was to compare the effectiveness of using a precision-dosing strategy (IBW or adjBW) with a traditional-dosing strategy (ABW) for IVIG in patients with hematologic malignancies or those undergoing hematopoietic stem cell transplant, as well as to perform an IVIG drug use analysis. DESIGN: Retrospective cohort study. SETTING: Academic medical center. PATIENTS: Between April 2014 and September 2016, 209 IVIG encounters met inclusion criteria for the primary outcome. Of those encounters, 125 were dosed using the traditional-dosing strategy, and 84 used the precision-dosing strategy. MEASUREMENTS AND MAIN RESULTS: The primary outcome was infection rate within 30 days of IVIG administration. Secondary outcomes included 60-day infection rate, immunoglobulin G (IgG)-level response (IgG higher than 400 mg/dl), and realized and potential IVIG savings. No difference in 30-day infection rate between precision- and traditional-dosing strategies was identified (15.5% vs 16%, respectively, p=0.823). Similarly, no difference was identified in the 60-day infection rate between groups (23.2% vs 19.8%, respectively, p=0.568). Levels of IgG obtained after IVIG repletion showed a treatment response rate of 86% in both groups. Use of a precision-dosing strategy achieved $2600/month in institutional savings with the opportunity for an additional $4600/month in savings with complete adherence to this dosing strategy. CONCLUSION: No differences in infection rate and IgG-level response were identified when a precision-dosing strategy was used. Implementation of an IVIG precision-dosing strategy provided institutional cost savings. PMID- 29028118 TI - Elevated serum adipsin may predict unsuccessful treatment for cows' milk allergy but other biomarkers do not. AB - AIM: This study evaluated whether 15 allergy, immunology or inflammatory markers predicted the long-term use of cows' milk or milk products seven years after the start of oral immunotherapy (OIT) for cows' milk allergy in children. METHODS: The following laboratory parameters were measured before the OIT at Tampere University Hospital, Finland, and after the six-month escalation phase: serum total immunoglobulin (Ig) E, milk-specific IgG and IgG4, eosinophil cationic protein, eosinophil-derived neurotoxin, interleukins 4, 5, 6, 10 and 12p70 and serum adipokines adiponectin, adipsin, leptin and resistin. Follow-up data from a seven-year phone questionnaire in 2015 were available for 24 children: 14 successful and 10 unsuccessful milk users. RESULTS: There were no significant differences in any of the 15 markers measured at the start of the study between the subjects who later formed the successful and unsuccessful groups. At the end of the six-month escalation phase of OIT, serum adipsin was higher in the group who were unsuccessful milk users at the seven-year follow-up study. CONCLUSION: None of the 15 allergy, immunology or inflammatory markers were useful in predicting the outcome of OIT. Preliminary evidence was found that high serum adipsin after the six-month escalation phase of OIT might predict unsuccessful outcome. PMID- 29028119 TI - Comparison of Treatment Persistence with Dabigatran or Rivaroxaban versus Vitamin K Antagonist Oral Anticoagulants in Atrial Fibrillation Patients: A Competing Risk Analysis in the French National Health Care Databases. AB - BACKGROUND: Direct oral anticoagulants (DOACs) have been proposed as a more convenient alternative to vitamin K antagonists (VKAs), which are commonly associated with poor treatment persistence in non-valvular atrial fibrillation (nv-AF). METHODS: Using data from the French national health care databases (Regime General, 50 million beneficiaries), a cohort study was conducted to compare the 1-year non-persistence rates in nv-AF patients initiating dabigatran (N=11,141) or rivaroxaban (N=11,126) versus VKA (N=11,998). Treatment discontinuation was defined as a switch between oral anticoagulant (OAC) classes or a 60-day gap with no medication coverage, with the additional criterion of no reimbursement for international normalized ratio monitoring during this gap for VKA patients. Considering death as a competing risk, differences between 1-year discontinuation rates were used to compare each DOAC versus VKA. The 95% confidence intervals (CIs) were estimated via bootstrapping. Baseline patient characteristics were adjusted using inverse probability of treatment weighting. Subgroup analyses considered DOAC dose at initiation, age, risk of stroke, and bleeding. RESULTS: Adjusted 1-year discontinuation rates were higher for dabigatran than for VKA new users (36.8% vs 30.2%; difference: 6.6% [95% CI, 5.5 7.6]) and for rivaroxaban versus VKA new users (33.4% vs 30.4%; 3.0% [1.9-4.1]). Similar differences were found in all subgroup analyses, except in dabigatran and rivaroxaban patients <75 years (dabigatran vs VKA: 0.3% [-1.4 to 1.8]; rivaroxaban vs VKA: -2.6% [-4.3 to -0.9]) and dabigatran 150 mg new users (-1.1% [-3.1 to 0.7]). Consistent results were obtained when considering both switches between OAC classes and death as competing risks of treatment discontinuation. CONCLUSION: Results from this nationwide cohort study showed high non-persistence levels with all OACs and suggest that persistence with both dabigatran and rivaroxaban therapy is not better than persistence with VKA therapy. Hospitalizations for bleeding among non-persistent patients were unlikely to explain these high non-persistence rates. PMID- 29028121 TI - Lupus-like cutaneous reaction following pembrolizumab: An immune-related adverse event associated with anti-PD-1 therapy. AB - PD-1 (programmed cell death-1) inhibitors, used to treat metastatic melanoma and other malignancies, are associated with development of immune-related adverse events in the skin. Such reactions include morbilliform eruptions, vitiligo, alopecia areata and bullous pemphigoid. In this report, we describe a patient who developed a lupus-like cutaneous reaction in the setting of pembrolizumab therapy for metastatic melanoma, adding to the spectrum of reactions which may be observed in association with PD-1 inhibitor therapy. PMID- 29028120 TI - Rethinking the Way We Do Research: The Benefits of Community-Engaged, Citizen Science Approaches and Nontraditional Collaborators. AB - There is tremendous opportunity for basic scientists to enhance the impact of our research by engaging more deeply with nontraditional partners and expanding the way we think about interdisciplinary research teams. These efforts can include more deeply engaging our participants, and the broader public, in our research; working with individuals from other fields to take a more active role in the dissemination and translation of our research; and working with collaborators from the arts and communication sciences to make our research more engaging and understandable. In this review, I provide an overview of our efforts along these lines in a project called Spit for Science (https://spit4science.vcu.edu/). This project draws from concepts central to community-engaged participatory research and citizen science. Although conducting research in this way involves a considerable time commitment, it has many potential benefits, including raising awareness about our research areas and findings; creating a public that is more connected to and aware of the importance of research, which can have potential implications for funding for science; creating new job opportunities for students; and increasing participation rates in our studies. By thinking creatively about how we conduct our research, and more broadly engaging diverse groups of individuals in the research process, we have the potential to significantly increase the reach and impact of our science. PMID- 29028122 TI - Atypical ALK-positive Spitz tumors with 9p21 homozygous deletion: Report of two cases and review of the literature. AB - ALK rearrangements occur in up to 10% of spitzoid melanocytic neoplasms. No reported cases have shown homozygous deletion of 9p21 (CDKN2A) or gains of 6p25 (RREB1) or 11q13 (CCND1), which have been associated with aggressive clinical behavior. Here we report 2 unique cases. Case 1 occurred in a 9-year-old male with a 14-mm nodule on the anterior left thigh. Biopsy revealed an ALK-positive Spitz tumor containing an irregular nodule of densely packed melanocytes with increased mitoses and loss of p16 immunoreactivity. FISH analysis showed homozygous deletion of 9p21 and gain of 6p25. Sentinel lymph node biopsy revealed small subcapsular foci of tumor. Case 2 occurred in a 7-year-old female with a 12 mm nodule on the anterior right ankle. Biopsy revealed an ALK-positive Spitz tumor containing an expansile nodule of pleomorphic epithelioid melanocytes with numerous mitoses and loss of p16 immunoreactivity. By FISH, the nodule showed homozygous deletion of 9p21 and gains of 6p25 and 11q13. Our cases show the transformation of tumors produced by an activating kinase fusion gene (ALK) through secondary genetic changes including loss of tumor suppressor activity (CDKN2A). Long-term follow up will be important to further define the behavior of these unique Spitz tumors. PMID- 29028112 TI - The role of declining adaptive homeostasis in ageing. AB - Adaptive homeostasis is "the transient expansion or contraction of the homeostatic range for any given physiological parameter in response to exposure to sub-toxic, non-damaging, signalling molecules or events, or the removal or cessation of such molecules or events" (Davies, 2016). Adaptive homeostasis enables biological systems to make continuous short-term adjustments for optimal functioning despite ever-changing internal and external environments. Initiation of adaptation in response to an appropriate signal allows organisms to successfully cope with much greater, normally toxic, stresses. These short-term responses are initiated following effective signals, including hypoxia, cold shock, heat shock, oxidative stress, exercise-induced adaptation, caloric restriction, osmotic stress, mechanical stress, immune response, and even emotional stress. There is now substantial literature detailing a decline in adaptive homeostasis that, unfortunately, appears to manifest with ageing, especially in the last third of the lifespan. In this review, we present the hypothesis that one hallmark of the ageing process is a significant decline in adaptive homeostasis capacity. We discuss the mechanistic importance of diminished capacity for short-term (reversible) adaptive responses (both biochemical and signal transduction/gene expression-based) to changing internal and external conditions, for short-term survival and for lifespan and healthspan. Studies of cultured mammalian cells, worms, flies, rodents, simians, apes, and even humans, all indicate declining adaptive homeostasis as a potential contributor to age-dependent senescence, increased risk of disease, and even mortality. Emerging work points to Nrf2-Keap1 signal transduction pathway inhibitors, including Bach1 and c-Myc, both of whose tissue concentrations increase with age, as possible major causes for age-dependent loss of adaptive homeostasis. PMID- 29028123 TI - Impact of Insulin Detemir Administration Time on Hypoglycemia Rates in Hospitalized Patients. AB - STUDY OBJECTIVE: To determine if insulin detemir administration time affects the frequency of hypoglycemia (blood glucose level <70 mg/dl) in hospitalized patients. DESIGN: Retrospective cohort study. PATIENTS: A total of 357 adults (aged 18-89 yrs) who received insulin detemir for at least 48 hours while hospitalized between January 1, 2014, and December 31, 2015, were included. Patients were categorized into one of three groups according to insulin detemir administration time: detemir given once/day between 7 a.m. and 10 a.m. (AM group [71 patients]), detemir given once/day between 6 p.m. and 10 p.m. (PM group [158 patients]), and detemir given twice/day (BID group [128 patients]). SETTING: Community hospital. MEASUREMENTS AND MAIN RESULTS: The primary outcome was the percentage of patient days with any occurrence of hypoglycemia. The key secondary outcomes included the percentages of patients who experienced any hypoglycemic event, severe hypoglycemia, hypoglycemia requiring treatment, and refractory hypoglycemia; time of hypoglycemia; and percentage of patients experiencing one or more episodes of hyperglycemia. The AM group had a lower proportion of days with hypoglycemia compared with the PM group (7.9% vs 11.9%, p=0.008). There was a nonsignificant trend toward a lower proportion of days with hypoglycemia in the BID group compared with the PM group (9.1% vs 11.9%, p=0.0302). No significant differences in percentage of patient days with hyperglycemia and rates of severe hypoglycemia, hypoglycemia requiring treatment, or refractory hypoglycemia were noted among the three groups. CONCLUSION: Administration of detemir in the morning may reduce the occurrence of hypoglycemia in hospitalized patients. Institutions that include detemir on their formularies may consider evaluating the incidence of hypoglycemia and modifying administration schedules as part of their medication safety program. PMID- 29028124 TI - Atrazine feminizes sex ratio in Blanchard's cricket frogs (Acris blanchardi) at concentrations as low as 0.1 MUg/L. AB - We exposed Blanchard's cricket frogs (Acris blanchardi) to ecologically relevant concentrations (0, 0.1, 1, and 10 MUg/L) of a commercial formulation of atrazine throughout the larval period to determine effects on survival, somatic growth and development (time to metamorphosis and mass at metamorphosis), and gonadal development (sex ratio at metamorphosis and the prevalence of testicular ova in phenotypic males). We tested the following hypotheses: 1) atrazine feminizes the sex ratio, 2) atrazine increases the proportion of phenotypic males with testicular ova, and 3) atrazine differentially affects somatic growth (mass at metamorphosis) and development (time to metamorphosis) for males and females. Although the control sex ratio was male-biased, exposure to 0.1 and 10 MUg/L atrazine feminized sex ratios, because these treatments produced 51 and 55% fewer males than the control, respectively. We did not observe testicular ova. Atrazine did not impact survival or metamorphosis, and we did not detect sexually dimorphic impacts on time to metamorphosis or mass at metamorphosis. However, males metamorphosed 2.3 d later than females, regardless of treatment. Sex biases in timing of metamorphosis are underexplored in anurans, but if prevalent, could have important implications for theory surrounding the impact of environmental factors on metamorphosis. Our data suggest that cricket frog sex ratios are sensitive to environmentally relevant concentrations of atrazine and that feminization in the field is likely. Environ Toxicol Chem 2018;37:427-435. (c) 2017 SETAC. PMID- 29028125 TI - Ledipasvir and tenofovir drug interaction in human immunodeficiency virus hepatitis C virus coinfected patients: Impact on tenofovir trough concentrations and renal safety. AB - We evaluate the impact of ledipasvir on both tenofovir plasma trough concentration and estimated glomerular renal function in human immunodeficiency virus-hepatitis C virus coinfected patients receiving a tenofovir-based antiretroviral regimen and treated with ledipasvir/sofosbuvir. Twenty-six patients [81% male, median age: 51 years; hepatitis C virus genotype 1(75%)/4(15%)] were included. Tenofovir trough concentration (interquartile range) increased from 78 ng ml-1 (53-110) at baseline to 141 ng ml-1 (72-176) at 1 month (P = 0.003). No significant difference on estimated glomerular renal function using both Cockroft-Gault and Modification of Diet in Renal Disease formulae, respectively, [median (interquartile range)] was observed between baseline [101.3 ml min-1 (91.1-114.1); 95.6 ml min-1 (86.5-111.2)], 1 month [102.4 ml min-1 (89.8-112.9), P = 0.26; 92.5 ml min-1 (88.1-114.3), P = 0.27], end-of-treatment [96.5 ml min-1 (82.4-115.4), P = 0.39; 95.4 ml min-1 (84.2 105.4), P = 0.16] and 12 weeks after the end of treatment [100.5 ml min-1 (83.3 111.9), P = 0.24; 93.4 ml min-1 (82.2-103.5), P = 0.16]. Three patients progressed from chronic kidney disease stage 1 to stage 2 at 12 weeks post treatment. A significant increase in tenofovir exposure through P-glycoprotein inhibition by ledipasvir was confirmed without significant impact on glomerular renal function in our population with normal renal function or mild renal impairment. PMID- 29028126 TI - Leukocytoclastic vasculitis presenting in association with Coxiella burnetii (Q fever): A case report. AB - Q fever caused by Coxiella burnetii usually presents asymptomatically or as an undifferentiated febrile disease and rarely as rash or other cutaneous manifestations of the disease. Here we present a 41-year-old male complaining of body ache, fever, nausea, malaise, bilateral knee pain and vomiting. Clinical examination revealed a notable erythematous blanching rash all over his body. Workup revealed positive serologic testing for C. burnetii and skin biopsy of the rash revealed leukocytoclastic vasculitis. PMID- 29028127 TI - Pure mucinous (colloid) adenocarcinoma of the conjunctiva. AB - Primary mucinous carcinomas of the periorbital region are very rare and often require differential diagnosis of metastatic disease. We describe a case of pure mucinous adenocarcinoma arising in the subconjunctival stroma of the ocular fornix in a female patient with a longstanding history of bilateral ocular cicatricial pemphigoid. Histologically, the tumor was composed of predominantly goblet-like cells floating in pools of mucin separated by delicate collagenous septa. The initial suspicion was of primary cutaneous mucinous carcinoma and less likely endocrine mucin-producing sweat gland carcinoma, however the CK7 /synaptophysin-/chromogranin-immunoprofile did not confirm either of the two. Focal areas of the tumor demonstrated peripheral staining for p63 and CK5/6 suggestive of an in situ component. Additional studies showed that the tumor cells were positive for CK20, CDX2, villin and MUC2. Given the final immunophenotype of the tumor, metastatic lesion from the lower gastrointestinal tract had to be ruled out. Thorough clinicoradiological work-up did not reveal any other primary tumors or evidence of metastatic disease elsewhere. Unique histomorphology, the presence of an in-situ component and negative clinical investigation suggest that this is a primary mucinous adenocarcinoma arising in the ocular fornix. This case may represent the first report of this entity in the literature. PMID- 29028129 TI - Stevens-Johnson syndrome induced by modafinil. PMID- 29028128 TI - Diagnostic accuracy of magnetic resonance imaging hepatic proton density fat fraction in pediatric nonalcoholic fatty liver disease. AB - : We assessed the performance of magnetic resonance imaging (MRI) proton density fat fraction (PDFF) in children to stratify hepatic steatosis grade before and after treatment in the Cysteamine Bitartrate Delayed-Release for the Treatment of Nonalcoholic Fatty Liver Disease in Children (CyNCh) trial, using centrally scored histology as reference. Participants had multiecho 1.5 Tesla (T) or 3T MRI on scanners from three manufacturers. Of 169 enrolled children, 110 (65%) and 83 (49%) had MRI and liver biopsy at baseline and at end of treatment (EOT; 52 weeks), respectively. At baseline, 17% (19 of 110), 28% (31 of 110), and 55% (60 of 110) of liver biopsies showed grades 1, 2, and 3 histological steatosis; corresponding PDFF (mean +/- SD) values were 10.9 +/- 4.1%, 18.4 +/- 6.2%, and 25.7 +/- 9.7%, respectively. PDFF classified grade 1 versus 2-3 and 1-2 versus 3 steatosis with areas under receiving operator characteristic curves (AUROCs) of 0.87 (95% confidence interval [CI], 0.80, 0.94) and 0.79 (0.70, 0.87), respectively. PDFF cutoffs at 90% specificity were 17.5% for grades 2-3 steatosis and 23.3% for grade 3 steatosis. At EOT, 47% (39 of 83), 41% (34 of 83), and 12% (10 of 83) of biopsies showed improved, unchanged, and worsened steatosis grade, respectively, with corresponding PDFF (mean +/- SD) changes of -7.8 +/- 6.3%, 1.2 +/- 7.8%, and 4.9 +/- 5.0%, respectively. PDFF change classified steatosis grade improvement and worsening with AUROCs (95% CIs) of 0.76 (0.66, 0.87) and 0.83 (0.73, 0.92), respectively. PDFF change cut-off values at 90% specificity were -11.0% and +5.5% for improvement and worsening. CONCLUSION: MRI-estimated PDFF has high diagnostic accuracy to both classify and predict histological steatosis grade and change in histological steatosis grade in children with NAFLD. (Hepatology 2018;67:858-872). PMID- 29028131 TI - A Motion Analysis Protocol for Kinematic Assessment of Poly-Articulated Prosthetic Hands With Cosmetic Gloves. AB - To provide upper-limb amputees with devices that best fit their needs and to test innovative solutions, it is necessary to quantitatively appraise a device performance with rigorous measurement methods. The aim of this work was to define an optimal motion analysis protocol, suitable for optoelectronic systems, to measure the kinematics of poly-articulated hands even when covered by a cosmetic glove. This is a fundamental aspect, because gloves can decrease device speed and range of motion and, ultimately, patients' acceptance of the artificial limb. In this work, different mathematical models of the joints and marker-sets for motion analysis were conceived. A regression model to choose a reduced marker-set for studying the hand performance with different cosmetic glove models was developed. The proposed approaches for finger motion analysis were experimentally tested on the index finger of the i-Limb, a commercial myoelectric poly-articulated prosthetic hand, but the results can be easily extended to the whole hand and to other poly-articulated prosthetic hands. The methods proposed for the performance analysis of prosthetic hands points out that the cosmetic gloves imply a reduction of the finger flexion/extension (F/E) angles and of the motion velocity. This draws attention to the need for performing independent cyclic tests on commercial products with various cosmetic solutions to better guide component selection. PMID- 29028130 TI - Oral Anticoagulation and Functional Outcome after Intracerebral Hemorrhage. AB - OBJECTIVE: Oral anticoagulation treatment (OAT) resumption is a therapeutic dilemma in intracerebral hemorrhage (ICH) care, particularly for lobar hemorrhages related to amyloid angiopathy. We sought to determine whether OAT resumption after ICH is associated with long-term outcome, accounting for ICH location (ie, lobar vs nonlobar). METHODS: We meta-analyzed individual patient data from: (1) the multicenter RETRACE study (n = 542), (2) a U.S.-based single center ICH study (n = 261), and (3) the Ethnic/Racial Variations of Intracerebral Hemorrhage study (n = 209). We determined whether, within 1 year from ICH, OAT resumption was associated with: (1) mortality, (2) favorable functional outcome (modified Rankin Scale = 0-3), and (3) stroke incidence. We separately analyzed nonlobar and lobar ICH cases using propensity score matching and Cox regression models. RESULTS: We included 1,012 OAT-related ICH survivors (633 nonlobar and 379 lobar). Among nonlobar ICH survivors, 178/633 (28%) resumed OAT, whereas 86/379 (23%) lobar ICH survivors did. In multivariate analyses, OAT resumption after nonlobar ICH was associated with decreased mortality (hazard ratio [HR] = 0.25, 95% confidence interval [CI] = 0.14-0.44, p < 0.0001) and improved functional outcome (HR = 4.22, 95% CI = 2.57-6.94, p < 0.0001). OAT resumption after lobar ICH was also associated with decreased mortality (HR = 0.29, 95% CI = 0.17-0.45, p < 0.0001) and favorable functional outcome (HR = 4.08, 95% CI = 2.48 6.72, p < 0.0001). Furthermore, OAT resumption was associated with decreased all cause stroke incidence in both lobar and nonlobar ICH (both p < 0.01). INTERPRETATION: These results suggest novel evidence of an association between OAT resumption and outcome following ICH, regardless of hematoma location. These findings support conducting randomized trials to explore risks and benefits of OAT resumption after ICH. Ann Neurol 2017;82:755-765. PMID- 29028132 TI - Graphene-Based Linear Tandem Micro-Supercapacitors with Metal-Free Current Collectors and High-Voltage Output. AB - Printable supercapacitors are regarded as a promising class of microscale power source, but are facing challenges derived from conventional sandwich-like geometry. Herein, the printable fabrication of new-type planar graphene-based linear tandem micro-supercapacitors (LTMSs) on diverse substrates with symmetric and asymmetric configuration, high-voltage output, tailored capacitance, and outstanding flexibility is demonstrated. The resulting graphene-based LTMSs consisting of 10 micro-supercapacitors (MSs) present efficient high-voltage output of 8.0 V, suggestive of superior uniformity of the entire integrated device. Meanwhile, LTMSs possess remarkable flexibility without obvious capacitance degradation under different bending states. Moreover, areal capacitance of LTMSs can be sufficiently modulated by incorporating polyaniline based pseudocapacitive nanosheets into graphene electrodes, showing enhanced capacitance of 7.6 mF cm-2 . To further improve the voltage output and energy density, asymmetric LTMSs are fabricated through controlled printing of linear patterned graphene as negative electrodes and MnO2 nanosheets as positive electrodes. Notably, the asymmetric LTMSs from three serially connected MSs are easily extended to 5.4 V, triple voltage output of the single cell (1.8 V), suggestive of the versatile applicability of this technique. Therefore, this work offers numerous opportunities of graphene and analogous nanosheets for one-step scalable fabrication of flexible tandem energy storage devices integrating with printed electronics on same substrate. PMID- 29028134 TI - Issue Information-Declaration of Helsinki. PMID- 29028133 TI - Addendum to "Cartilage-Specific Autophagy Deficiency Promotes ER Stress and Impairs Chondrogenesis in PERK-ATF4-CHOP-Dependent Manner". PMID- 29028135 TI - Predicting episodic and spatial memory performance from hippocampal resting-state functional connectivity: Evidence for an anterior-posterior division of function. AB - fMRI studies have identified distinct resting-state functional connectivity (RSFC) networks associated with the anterior and posterior hippocampus. However, the functional relevance of these two networks is still largely unknown. Hippocampal lesion studies and task-related fMRI point to a role for the anterior hippocampus in nonspatial episodic memory and the posterior hippocampus in spatial memory. We used Relevance Vector Regression (RVR), a machine-learning method that enables predictions of continuous outcome measures from multivariate patterns of brain imaging data, to test the hypothesis that patterns of whole brain RSFC associated with the anterior hippocampus predict episodic memory performance, while patterns of whole-brain RSFC associated with the posterior hippocampus predict spatial memory performance. Magnetic resonance imaging and memory assessment took place at two separate occasions. The anterior and posterior RSFC largely corresponded with previous findings, and showed no effect of laterality. Supporting the hypothesis, RVR produced accurate predictions of episodic performance from anterior, but not posterior, RSFC, and accurate predictions of spatial performance from posterior, but not anterior, RSFC. In contrast, a univariate approach could not predict performance from resting-state connectivity. This supports a functional dissociation between the anterior and posterior hippocampus, and indicates a multivariate relationship between intrinsic functional networks and cognitive performance within specific domains, that is relatively stable over time. PMID- 29028136 TI - The Synergistic Effect between Triphenylpyrrole Isomers as Donors, Linking Groups, and Acceptors on the Fluorescence Properties of D-pi-A Compounds in the Solid State. AB - Eight donor-pi-acceptor (D-pi-A) compounds employing triphenylpyrrole isomers (TPP-1,2,5 and TPP-1,3,4) as donors, malononitrile (CN) and 1H-indene-1,3(2H) dione (CO) as acceptors, pyridone (P) and benzopyran (B) as pi-linking groups were synthesized. The compounds exhibited aggregation-induced emission and piezochromic properties. Compared with previously reported donors, triphenylpyrroles induced all the compounds to have more remarkable photophysical properties. The compounds containing TPP-1,2,5 and P moieties displayed stronger fluorescence intensities, shorter emission wavelengths, and more distinct piezochromic properties. However, the same phenomenon was observed in the TPP 1,3,4-containing system if B was as pi-linker. Moreover, the CN acceptor endowed the compound to have a relatively strong fluorescent intensity, in which CO induced a relatively long emission wavelength. That is, the photophysical properties of D-pi-A compounds can be controlled by adjusting the structure of donor, linker and acceptor. PMID- 29028137 TI - Conjugated Polymers Via Direct Arylation Polymerization in Continuous Flow: Minimizing the Cost and Batch-to-Batch Variations for High-Throughput Energy Conversion. AB - Continuous flow methods are utilized in conjunction with direct arylation polymerization (DArP) for the scaled synthesis of the roll-to-roll compatible polymer, poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(4,7-di(thiophen-2-yl) benzo[c][1,2,5]thiadiazole)] (PPDTBT). PPDTBT is based on simple, inexpensive, and scalable monomers using thienyl-flanked benzothiadiazole as the acceptor, which is the first beta-unprotected substrate to be used in continuous flow via DArP, enabling critical evaluation of the suitability of this emerging synthetic method for minimizing defects and for the scaled synthesis of high-performance materials. To demonstrate the usefulness of the method, DArP-prepared PPDTBT via continuous flow synthesis is employed for the preparation of indium tin oxide (ITO)-free and flexible roll-coated solar cells to achieve a power conversion efficiency of 3.5% for 1 cm2 devices, which is comparable to the performance of PPDTBT polymerized through Stille cross coupling. These efforts demonstrate the distinct advantages of the continuous flow protocol with DArP avoiding use of toxic tin chemicals, reducing the associated costs of polymer upscaling, and minimizing batch-to-batch variations for high-quality material. PMID- 29028138 TI - 2D Ruddlesden-Popper Perovskites for Optoelectronics. AB - Conventional 3D organic-inorganic halide perovskites have recently undergone unprecedented rapid development. Yet, their inherent instabilities over moisture, light, and heat remain a crucial challenge prior to the realization of commercialization. By contrast, the emerging 2D Ruddlesden-Popper-type perovskites have recently attracted increasing attention owing to their great environmental stability. However, the research of 2D perovskites is just in their infancy. In comparison to 3D analogues, they are natural quantum wells with a much larger exciton binding energy. Moreover, their inner structural, dielectric, optical, and excitonic properties remain to be largely explored, limiting further applications. This review begins with an introduction to 2D perovskites, along with a detailed comparison to 3D counterparts. Then, a discussion of the organic spacer cation engineering of 2D perovskites is presented. Next, quasi-2D perovskites that fall between 3D and 2D perovskites are reviewed and compared. The unique excitonic properties, electron-phonon coupling, and polarons of 2D perovskites are then be revealed. A range of their (opto)electronic applications is highlighted in each section. Finally, a summary is given, and the strategies toward structural design, growth control, and photophysics studies of 2D perovskites for high-performance electronic devices are rationalized. PMID- 29028139 TI - Birth-weight discordance and neonatal morbidity in twin pregnancy: analysis of STORK multiple pregnancy cohort. AB - OBJECTIVES: To investigate the relationship between weight discordance and neonatal morbidity in twin pregnancy progressing to at least 34 weeks of gestation. The secondary aim was to determine the predictive accuracy of different weight discordance cut-offs in predicting neonatal morbidity in twin pregnancy. METHODS: This was a retrospective multicenter cohort study of all twin pregnancies booked for antenatal care at four hospitals in the Southwest Thames region of London Obstetric Research Collaborative (STORK) over a period of 10 years. Ultrasound data were obtained by a search of each hospital's obstetric ultrasound computer database, while outcome details were obtained from the computerized maternity and neonatal records. The primary outcome was incidence of composite neonatal morbidity in twin pregnancy with birth-weight discordance. Logistic regression was used to identify and adjust for potential confounders, while a receiver-operating characteristics (ROC) curve was used to determine predictive accuracy. RESULTS: Nine hundred and thirty-nine twin pregnancies (760 dichorionic, 179 monochorionic) were included. Gestational age at birth and birth weight decile were significantly lower in pregnancies complicated by neonatal morbidity compared with those which were not (P < 0.001 for both). On multivariable logistic regression analysis, gestational age at birth (P < 0.001), birth-weight decile (P = 0.029) and birth-weight discordance (P = 0.019), but not chorionicity (P = 0.477) or presence of at least one small-for-gestational-age (SGA) twin (P = 0.245), were associated independently with the risk of neonatal morbidity. There was a progressive increase in the risk of neonatal morbidity with increasing birth-weight discordance. Despite this association, birth-weight discordance showed an overall poor predictive accuracy for neonatal morbidity, with an area under the ROC curve of 0.58 (95% CI, 0.53-0.63) with an optimal cut off of 17.6%, showing sensitivity and specificity of 35.2% (95% CI, 27.8-43.2%) and 83.2% (95% CI, 80.4-85.8%), respectively. CONCLUSION: Intertwin birth-weight discordance is associated independently with the risk of neonatal morbidity in twins born after 34 weeks' gestation, irrespective of chorionicity or diagnosis of SGA in either twin. However, its predictive accuracy for neonatal morbidity is poor. Copyright (c) 2017 ISUOG. Published by John Wiley & Sons Ltd. PMID- 29028141 TI - Mapping trends in the concept of nurse rounding: A bibliometric analysis and research agenda. AB - AIMS: Examine the growth and diffusion of research on the concept of nurse rounding and provide definitional clarity on forms of nurse rounding. METHODS: Bibliometric and content analysis of primary research on nurse rounding were used to map development of the field. Manuscripts were identified from a keyword search of MEDLINE, CINAHL, and PsycINFO databases for the period 2000 to 2015. Titles, country of origin, and year of publication along with details on the characteristics and sample of each study were coded on a database. Content analyses were performed on the coded data to derive a taxonomic understanding and identify publication trends. RESULTS: Thirty-eight primary research studies were identified. Overall, there has been an increase in the number and diversity of studies on nursing rounding. A typology of 4 variants of nurse rounding was devised to enhance clarity and enable comparative analysis. CONCLUSION: There has been continued interest in nurse rounding and its potential benefits. However, poor definitional clarity is evident in this body of research, with various label used interchangeably in studies reporting similar rounding designs. The field would benefit from improved conceptual clarity and investigation into forms of nurse rounding that remain largely unexamined. PMID- 29028140 TI - Report of 12 cases with tracheobronchial mucormycosis and a review. AB - OBJECTIVES: Tracheobronchial mucormycosis is a rare and invasive pulmonary mucormycosis involving the tracheobronchial tree. DATA SOURCE: At a 3500-bed tertiary care center. STUDY SELECTION: This was a retroactive study of 12 cases of tracheobronchial mucormycosis diagnosed in our hospital, and 48 cases that were previously reported in the English literature. RESULTS: Rhizopus was the predominant species of pathogen (66.7%). Primary bronchus was the most frequently involved location (38.2%), and upper lobes (51% of cases) were a predilection. Obstructive necrosis and mucosal necrosis were the most common pathological forms (40% and 34.5%, respectively). Fever (59.3%), cough (59.3%), dyspnea (40.7%) and hemoptysis (30.5%) were the most common symptoms. 51.4% patients had rales, 40% had moist rales and 28.6% had negative physical findings. Ninety-five percent patients had immunosuppressive diseases. Diabetes mellitus (66.7%), diabetes ketoacidosis (21.7%), corticosteroid therapy (20%) and kidney insufficiency (18.3%) were the most common predisposing factors. 13.2% had neutropenia which was mostly among the non-diabetic patients (P = .006). Endobronchial lesion of 23.2% had imaging reports with 33.9% exhibiting single mass. Pathological diagnosis of 76.7% used the transbronchial biopsy. The most frequent antifungal therapies were intravenous amphotericin B (79.7%), surgery (33.3%) and surgery combined with amphotericin B therapy (28.3%). Overall in-hospital mortality was 52.5%, with hemoptysis (P = .017), dyspnea at presentation (P = .022) and angioinvasion (P = .03) as independent risk prognostic factors. In contrast, surgery (P = .003) was an independent protection prognostic factor. CONCLUSIONS: Tracheobronchial mucormycosis is a rare but severe disease with high mortality because of its nonspecific clinical presentations and variable predisposing factors. PMID- 29028142 TI - Local hyperthermia therapy for refractory cutaneous Mycobacterium marinum infection. PMID- 29028143 TI - Functional analysis of Toxoplasma lactate dehydrogenases suggests critical roles of lactate fermentation for parasite growth in vivo. AB - Glycolysis was thought to be the major pathway of energy supply in both fast replicating tachyzoites and slowly growing bradyzoites of Toxoplasma gondii. However, its biological significance has not been clearly verified. The genome of T. gondii encodes two lactate dehydrogenases (LDHs), which are differentially expressed in tachyzoites and bradyzoites. In this study, we knocked out the two LDH genes individually and in combination and found that neither gene was required for tachyzoite growth in vitro under standard growth conditions. However, during infection in mice, Deltaldh1 and Deltaldh1 Deltaldh2 mutants were unable to propagate and displayed significant virulence attenuation and cyst formation defects. LDH2 only played minor roles in these processes. To further elucidate the mechanisms underlying the critical requirement of LDH in vivo, we found that Deltaldh1 Deltaldh2 mutants replicated significantly more slowly than wild-type parasites when cultured under conditions with physiological levels of oxygen (3%). In addition, Deltaldh1 Deltaldh2 mutants were more susceptible to the oxidative phosphorylation inhibitor oligomycin A. Together these results suggest that lactate fermentation is critical for parasite growth under physiological conditions, likely because energy production from oxidative phosphorylation is insufficient when oxygen is limited and lactate fermentation becomes a key supplementation. PMID- 29028144 TI - Treatment of pediatric anogenital condyloma acuminata with sinecatechins ointment. PMID- 29028145 TI - Ultrafast Dynamics of a Fluorescent Tetrazolium Compound in Solution. AB - Tetrazolium salts are exploited in various fields of research by virtue of their low reduction potentials. Increasingly, associated applications also attend to the photochemical and luminescence properties of these systems. Here, we investigate the photoinduced dynamics of phenyl-benzo[c]tetrazolo-cinnolinium chloride (PTC), one of the very few known fluorescent tetrazolium compounds, by using time-correlated single-photon counting, femtosecond fluorescence upconversion, and ultrafast transient absorption spectroscopy. PTC is generated photochemically by ultraviolet illumination of 2,3,5-triphenyl-tetrazolium chloride (TTC) in various alcohols. Time-resolved fluorescence measurements on PTC with different excitation wavelengths disclose biphasic solvation and vibrational relaxation dynamics. Depending on the solvent, the emission behavior of PTC is characterized by quantum yields on the order of several tens of percent and corresponding excited-state lifetimes of several hundreds of picoseconds. The radiative rate is basically constant for the studied alcohols, whereas the rate of the competing non-radiative process is sensitive to the solvent polarity. Hence, we discuss the possible involvement of intermediate radicals and further presumptive reaction pathways pursued after photoexcitation of PTC. PMID- 29028146 TI - Ferromagnetism and Half-Metallicity in a High-Band-Gap Hexagonal Boron Nitride System. AB - Metal-free half-metallicity is the subject of intense research in the field of spintronics devices. Using density functional theoretical calculations, atom-thin hexagonal boron nitride (h-BN)-based systems are studied for possible spintronics applications. Ferromagnetism is observed in patterned C-doped h-BN systems. Interestingly, such a patterned C-doped h-BN exhibits half-metallicity with a Curie temperature of approximately 324 K at a particular C-doping concentration. It shows half-metallicity more than metal-free systems studied to date. Thus, such a BN-based system can be used to achieve a 100 % spin-polarised current at the Fermi level. Furthermore, this C-doped system shows excellent dynamical, thermal, and mechanical properties. Therefore, a stable metal-free planar ferromagnetic half-metallic h-BN-based system is proposed for use in room temperature spintronics devices. PMID- 29028147 TI - 'Most significant change' and the maximising cognition (MAXCOG) intervention: The views of clients, supporters and counsellors. AB - OBJECTIVES: To explore the views of clients, supporters and counsellors about their experiences of the maximising cognition (MAXCOG) intervention. METHODS: The most significant change (MSC) method of analysis was used. Twenty-three narrative accounts of the MAXCOG intervention and the 'MSC' that occurred were obtained. A panel, including experts from Alzheimer's Australia, the MAXCOG research team and clinicians from memory clinics, conducted a workshop to discuss and categorise the accounts. RESULTS: Two subcategories of stories were identified: (i) An 'acceptance group' that focused on adjustment issues; and (ii) A 'goal achievement' group with a focus on goals and improvement in ability and confidence. These subcategories mapped closely to the original goals outlined for the MAXCOG intervention. CONCLUSION: The MAXCOG intervention was successful in assisting people to work towards goals and adjust psychologically to difficulties. PMID- 29028149 TI - Solitary perianal rectal mass as the only manifestation of Crohn's disease. PMID- 29028148 TI - Follow-up of 1887 patients receiving tumor necrosis-alpha antagonists: Tuberculin skin test conversion and tuberculosis risk. AB - OBJECTIVES: To evaluate the characteristics of patients who developed tuberculosis while receiving tumor necrosis factor-alpha (TNF-alpha) antagonists and the related factors with tuberculosis. METHODS: Patient's demographics, tuberculin skin test (TST), isoniazid prophylaxis and type of TNF-alpha antagonist were recorded. TST conversion (>=5 mm increase) was evaluated for patients who had baseline and 1-year TST. RESULTS: Files of 1887 patients who were receiving TNF-alpha antagonists between August 2005 and June 2015 were evaluated. TST significantly increased at the end of 1 year (n = 748 baseline:7.36 +/- 7.2 mm vs. 1 year:9.52 +/- 7.5 mm, P < 0.001). One-third of patients (31.2%) who had negative TST at baseline had positive TST at 1 year. Tuberculosis developed in 22 patients (1.16%). The annual incidence of tuberculosis was 423/100 000 patient-year. TNF-alpha antagonist indications were ankylosing spondylitis (n = 8), inflammatory bovel diseases (n = 7) and rheumatoid arthritis (n = 4). Ten (45.5%) patients received infliximab, six (27.3%) patients received etanercept and six (27.3%) patients received adalimumab. Nineteen (86.4%) patients were under isoniazid prophylaxis. Twelve patients had extrapulmonary tuberculosis (54.5%; four lymph node, three pleura, two periton, one pericarditis, one intestinal, one joint). Atypical mycobacterium was detected in one patient. Adalimumab treatment (9.5* increase), male sex (15.6* increase) and previous tuberculosis disease history (11.5* increase) were risk factors for active tuberculosis. Conversion of TST was not found related with tuberculosis. CONCLUSIONS: Despite the high proportion of isoniazid prophylaxis, the incidence of tuberculosis in our patients receiving TNF-alpha antagonist was higher than the literature. Adalimumab treatment, male sex and previous tuberculosis disease history were found as risk factors for tuberculosis. PMID- 29028150 TI - Potential of microRNAs as novel targets in the alleviation of pathological fear. AB - The current treatment of post-traumatic stress disorder (PTSD), phobias and other anxiety disorders, remains insufficient particularly in producing long-lasting full symptom control. Dysfunctional fear processing is common in these disorders, including a deficiency in fear-inhibitory mechanisms and impairment in the ability to discriminate between safety and danger cues. Research has aimed to elucidate brain circuitries, neurotransmitters and downstream signaling pathways important in the alleviation of aberrant fear, with a specific focus on mechanisms modulating fear memory and its behavioral expression. MicroRNAs (miRNA) as "fine tuners" of gene expression at the post-transcriptional level have emerged as critical regulators of such mechanisms important in both, the generation and the inhibition of fear memories. Along these lines, abnormal expression of miRNAs has been associated with different fear-related disorders. After providing an updated overview on the involvement of miRNAs in fear learning mechanisms, we summarize and discuss in particular those studies in which the implication of miRNAs in successful inhibition of fear has been explored. For a better overview, we dissociate the different modes of fear alleviation investigated in this regard and present studies in rodents demonstrating that specific miRNAs are involved in the destabilization of fear by interfering with consolidation/reconsolidation mechanisms or that they are associated with the generation of fear extinction or safety learning. Finally, we discuss the potential of miRNAs as biomarkers and novel therapeutic targets, as well as the challenges involved in applying the discovered mechanisms in the development of improved treatments of fear- and trauma-related disorders. PMID- 29028151 TI - Delirium care: Real-world solutions to real-world problems. AB - OBJECTIVES: Implementation research into delirium care is lacking. Exploiting known practice barriers to understand what management strategies work best in delirium is a means of prioritising care interventions. A consensus approach to determining priority interventions in delirium was derived and related to reference standards in health-care practice. METHODS: A workshop of 20 experts was held at the Australasian Delirium Association conference 2016. Structured small group work, iterative ranking and a 21-member check were undertaken to (i) explore research barriers in delirium care; (ii) explore how barriers related to individual items of multicomponent interventions; and (iii) rank multicomponent interventions in relation to each statement within the newly released Australian Commission on Safety and Quality in Health Care delirium standard. RESULTS: Top ranking interventions included the following: education and training, comprehensive geriatric assessment, family partnerships, individualised care and multidisciplinary engagement. CONCLUSION: Delirium experts identified a minimum standard of any care intervention for delirium. PMID- 29028152 TI - Salivary C-reactive protein and mean platelet volume in diagnosis of late-onset neonatal pneumonia. AB - BACKGROUND: Neonatal pneumonia is an important and major cause of neonatal morbidity and mortality worldwide therefore; its early detection plays a crucial role in successful therapy. Analysis of saliva as a non-invasive method for detection of neonatal diseases holds great promise for improving health care. Till now, salivary C-reactive protein (CRP), mean platelet volume (MPV), neutrophil/lymphocyte ratio (NLR) and platelets/lymphocytes ratio (PLR) have not been studied as markers of diagnosis in neonatal pneumonia. OBJECTIVE: To assess the applicability of salivary CRP, MPV, NLR and PLR as diagnostic markers in late onset neonatal pneumonia. METHODS: A prospective case control study of 70 full term neonates, 35 with late-onset neonatal pneumonia and 35 healthy controls, was enrolled. Serum and salivary CRP concentrations were measured by ELISA, while MPV, NLR and PLR were measured by automated blood cell counter. RESULTS: This study showed a statistically significant difference between salivary CRP means in neonates with late-onset neonatal pneumonia vs control neonates (6.2 +/- 4.6 and 2.8 +/- 1.9 ng/L) respectively. At the cutoff point of 3.8 ng/L, salivary CRP showed 91.4% sensitivity and 80.9% specificity. Salivary CRP also showed accuracy in predicting elevated serum CRP in neonates with pneumonia. MPV showed a significant difference between pneumonia and controls (mean = 10.2 +/- 0.7, 8 +/- 0.5) respectively. At cutoff point 9.0, it has 80% sensitivity and specificity. CONCLUSIONS: The present study showed for the first time that both salivary CRP and MPV are suitable as diagnostic markers in late-onset neonatal pneumonia. PMID- 29028153 TI - Tailored intraoperative localization of non-palpable pulmonary lesions for thoracoscopic wedge resection using hybrid room technology. AB - INTRODUCTION: VATS wedge resection can require conversion to thoracotomy when pulmonary lesions cannot be identified. Hybrid operating rooms (HORs) provide real-time image acquisition capabilities allowing the intraoperative placement of markers to facilitate the removal of non-palpable nodules during VATS. OBJECTIVES: To present our workflow based on the alternative use of two different markers according to the location of the lung lesion and report our initial results. METHODS: All consecutive patients with non-palpable lesions requiring VATS wedge resection underwent localization of the targets in HOR. Lesions were considered non-palpable if they were small (<1 cm), deep (>1 cm from surface), subsolid, or located within a dystrophic area. Anesthetized patients were placed in lateral decubitus. Cone-beam CT (CBCT) was performed, and the needle trajectory was planned using Syngo iGuide Needle Guidance. Metal hook-wire or coil was placed, according to our workflow, close to the lesion and their position was verified by CBCT or fluoroscopy. RESULTS: Eleven VATS wedge resections were performed in 10 patients with 12 non-palpable lesions. The localization was performed with seven hook-wires and four coils in 30 minutes (range 17-56 minutes). The median estimated total effective dose was 11.6 mSv (range 1.9-24.7 mSv). Eleven lesions were removed by VATS, and one deep nodule required a thoracotomy. No complications were observed. CONCLUSIONS: Our experience confirms that HOR is suitable for simultaneous localization and VATS resection of 'difficult' pulmonary lesions. A versatile approach, using different devices, seems advisable for the removal of targets in every clinical scenario, reducing the VATS conversion rate. PMID- 29028154 TI - On-Surface Synthesis of Adenine Oligomers via Ullmann Reaction. AB - Despite the fact that DNA bases have been well-studied on surface, the on-surface synthesis of one-dimensional DNA analogs through in situ reactions is still an interesting topic to be investigated. Herein, from the interplay of high resolution scanning tunneling microscopy (STM) imaging and density functional theory (DFT) calculations, we have delicately designed a halogenated derivative of adenine as precursor to realize the combination of DNA bases and Ullmann reaction, and then successfully synthesized adenine oligomers on Au(111) via Ullmann coupling. This model system provides a possible bottom-up strategy of fabricating adenine oligomers on surface, which may further give access to man made DNA strands with multiple bases. PMID- 29028155 TI - A Parallel Reaction Monitoring Mass Spectrometric Method for Analysis of Potential CSF Biomarkers for Alzheimer's Disease. AB - SCOPE: The aim of this study was to develop and evaluate a parallel reaction monitoring mass spectrometry (PRM-MS) assay consisting of a panel of potential protein biomarkers in cerebrospinal fluid (CSF). EXPERIMENTAL DESIGN: Thirteen proteins were selected based on their association with neurodegenerative diseases and involvement in synaptic function, secretory vesicle function, or innate immune system. CSF samples were digested and two to three peptides per protein were quantified using stable isotope-labeled peptide standards. RESULTS: Coefficients of variation were generally below 15%. Clinical evaluation was performed on a cohort of 10 patients with Alzheimer's disease (AD) and 15 healthy subjects. Investigated proteins of the granin family exhibited the largest difference between the patient groups. Secretogranin-2 (p<0.005) and neurosecretory protein VGF (p<0.001) concentrations were lowered in AD. For chromogranin A, two of three peptides had significantly lowered AD concentrations (p<0.01). The concentrations of the synaptic proteins neurexin-1 and neuronal pentraxin-1, as well as neurofascin were also significantly lowered in AD (p<0.05). The other investigated proteins, beta2-microglobulin, cystatin C, amyloid precursor protein, lysozyme C, neurexin-2, neurexin-3, and neurocan core protein, were not significantly altered. CONCLUSION AND CLINICAL RELEVANCE: PRM MS of protein panels is a valuable tool to evaluate biomarker candidates for neurodegenerative disorders. PMID- 29028156 TI - Genetic background effects in Neuroligin-3 mutant mice: Minimal behavioral abnormalities on C57 background. AB - : Neuroligin-3 (NLGN3) is a postsynaptic cell adhesion protein that interacts with presynaptic ligands including neurexin-1 (NRXN1) [Ichtchenko et al., Journal of Biological Chemistry, 271, 2676-2682, 1996]. Mice harboring a mutation in the NLGN3 gene (NL3R451C) mimicking a mutation found in two brothers with autism spectrum disorder (ASD) were previously generated and behaviorally phenotyped for autism-related behaviors. In these NL3R451C mice generated and tested on a hybrid C57BL6J/129S2/SvPasCrl background, we observed enhanced spatial memory and reduced social interaction [Tabuchi et al., Science, 318, 71-76, 2007]. Curiously, an independently generated second line of mice harboring the same mutation on a C57BL6J background exhibited minimal aberrant behavior, thereby providing apparently discrepant results. To investigate the origin of the discrepancy, we previously replicated the original findings of Tabuchi et al. by studying the same NL3R451C mutation on a pure 129S2/SvPasCrl genetic background. Here we complete the behavioral characterization of the NL3R451C mutation on a pure C57BL6J genetic background to determine if background genetics play a role in the discrepant behavioral outcomes involving NL3R451C mice. NL3R451C mutant mice on a pure C57BL6J background did not display spatial memory enhancements or social interaction deficits. We only observed a decreased startle response and mildly increased locomotor activity in these mice suggesting that background genetics influences behavioral outcomes involving the NL3R451C mutation. Autism Res 2018, 11: 234-244. (c) 2017 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Behavioral symptoms of autism can be highly variable, even in cases that involve identical genetic mutations. Previous studies in mice with a mutation of the Neuroligin-3 gene showed enhanced learning and social deficits. We replicated these findings on the same and different genetic backgrounds. In this study, however, the same mutation in mice on a different genetic background did not reproduce our previous findings. Our results suggest that genetic background influences behavioral symptoms of this autism associated mutation. PMID- 29028157 TI - Transthoracic catheter drainage for large symptomatic congenital pulmonary airway malformation. AB - BACKGROUND: Surgical resection of large symptomatic congenital pulmonary airway malformation (CPAM) in newborns has high risks of mortality and postoperative morbidity. This study aimed to report the clinical outcomes of newborns who underwent percutaneous transthoracic catheter drainage (PTCD) of large symptomatic CPAM before surgical resection. METHODS: This was a retrospective, descriptive study based on review of the medical records of newborn infants who required surgical resection of large symptomatic CPAM at a single tertiary hospital from 2001 to 2017. The clinical outcomes were compared between patients who underwent surgical resection following PTCD (PTCD group) and those who underwent surgical resection alone (non-PTCD group). RESULTS: A total of 17 newborns were included. PTCD was performed in seven cases; the median age at the time of the initial PTCD was 4 days (range, 0-20 days). Following PTCD in all cases, chest radiograph demonstrated a dramatic reduction in the sizes of the cysts and improvement of mediastinal shift and the Alveolar-arterial oxygen difference decreased. The median duration between initial PTCD and surgery was 4 days (range, 2-33 days). PTCD-related complications included pneumothorax (n = 2), catheter displacement (n = 1), and failure to drain (n = 1). Compared with the non-PTCD group (6 of 10), the PTCD group had a tendency toward lower rates of postoperative complications (1 of 7). CONCLUSION: PTCD can be an effective interim management for symptomatic newborn infants who require emergency surgical resection of large CPAM. PMID- 29028158 TI - Effects of intratracheal budesonide during early postnatal life on lung maturity of premature fetal rabbits. AB - AIM: This study aimed to study the effects of intratracheal instillation of budesonide on lung maturity of premature fetal rabbits. The developmental pattern of pulmonary alveoli in rabbits is similar to that in humans. METHOD: Fetal rabbits were taken out from female rabbits on the 28th day of pregnancy (full term = 31 days) by cesarean section (c-section). The fetal rabbits were divided into four groups: control (normal saline, NS), budesonide (budesonide, BUD), calf pulmonary surfactant for injection (pulmonary surfactant, PS), and calf pulmonary surfactant + budesonide for injection (pulmonary surfactant + budesonide, PS + BUD). All premature rabbits were kept warm after c-section. After 15-min autonomous respiration, a tracheal cannula was implemented for instilling NS, BUD, PS, and PS + BUD. The morphology of lung tissues of premature fetal rabbits was analyzed using optical and electron microscopes. Surfactant protein B (SP-B) mRNA and protein levels in lung tissues were determined using polymerase chain reaction and Western blotting, respectively. RESULT: Intratracheal instillation of BUD could increase the alveolar area of the fetal rabbits (P < 0.01), decrease the alveolar wall thickness (P < 0.01), and increase the mean density of lamellar bodies (P < 0.05) and SP-B protein levels in type II epithelial cells of pulmonary alveoli (P < 0.05). CONCLUSION: Intratracheal instillation of BUD during early postnatal life is effective in promoting alveolarization and increasing SP-B expression, the pro-pulmonary maturity of BUD combined with PS is superior to that of BUD or PS alone. However, the long-term effect of BUD on lung development needs further exploration. PMID- 29028159 TI - Serologically diagnosed acute human bocavirus 1 infection in childhood community acquired pneumonia. AB - AIM: To assess the role of human bocavirus 1 (HBoV1) as a causative agent of non severe community-acquired pneumonia (CAP) in children. METHODS: Patients aged 2 59 months with non-severe CAP (respiratory complaints and radiographic pulmonary infiltrate/consolidation) attending a University Hospital in Salvador, Brazil were enrolled in a prospective cohort. From 820 recruited children in a clinical trial (ClinicalTrials.gov NCT01200706), nasopharyngeal aspirate (NPA), and acute and convalescent serum samples were obtained from 759 (92.6%) patients. NPAs were tested for 16 respiratory viruses by PCR. Acute HBoV1 infection was confirmed by measuring specific IgM and IgG responses in paired serum samples. RESULTS: Respiratory viruses were detected in 693 (91.3%; 95%CI: 89.1-93.2) CAP cases by PCR. HBoV1-DNA was detected in 159 (20.9%; 95%CI: 18.2-24.0) cases. Of these 159 PCR positive cases, acute HBoV1 infection was confirmed serologically in 38 cases (23.9%; 95%CI: 17.8-31.0). Overall, acute HBoV1 infection was confirmed in 5.0% (38/759) of non-severe CAP patients. HBoV1 was detected in 151 cases with at least one other virus making 31.7% of all multiple virus (n = 477) detections. Among all 759 cases, 216 had one respiratory virus detected, and sole HBoV1 was detected in only 8 (3.7%). Acute HBoV1 infection was serologically diagnosed in 34 (22.5%) HBoV1-DNA-positive cases with another virus, compared to 4 (50.0%) cases with sole virus detection (p = 0.09). CONCLUSION: HBoV1 was detected by PCR in one fifth of the children with non-severe CAP and acute HBoV1 infection was serologically confirmed in one quarter of these cases. PMID- 29028162 TI - The benefits of replication research. PMID- 29028160 TI - Angiotensin-converting enzyme insertion/deletion gene polymorphism in Egyptian children with CAP: A case-control study. AB - BACKGROUND: Community-acquired pneumonia (CAP) is a major cause of childhood morbidity and mortality worldwide. The angiotensin-converting enzyme (ACE) gene is a potential candidate gene for CAP risk. OBJECTIVES: In this study, we aimed to investigate whether the ACE insertion/deletion (I/D) polymorphism (rs4340) could be a genetic marker for CAP susceptibility in Egyptian children, and we also measured the serum ACE level to assess its relation to such polymorphism. METHODS: This was a prospective case-control study included 300 patients with CAP, and 300 age, gender, and ethnicity matched healthy controls. The ACE I/D polymorphism (rs4340) at intron 16 was genotyped by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP), while the serum ACE levels were measured by ELISA. RESULTS: Compared to the controls subjects, the frequencies of the ACE DD genotype and D allele were overrepresented in patients with CAP (OR = 3.05; [95%CI: 2.14-4.35] for the DD genotype; P < 0.001) and (OR: 1.8; [95%CI: 1.42-2.29]; for the D allele; P < 0.01, respectively). Patients with the DD genotype had significantly higher mean serum ACE levels (45.6 +/- 11.4 U/L) compared to those with ID genotype (36.5 +/- 8.3 U/L) and II genotype (21.6 +/- 5.7 U/L); P < 0.01, respectively. CONCLUSION: The ACE I/D polymorphism (rs4340) may contribute to the genetic susceptibility of CAP in Egyptian children. The ACE D allele and DD genotype were associated with higher serum ACE levels among studied CAP patients. PMID- 29028161 TI - Effect of haemodialysis and residual renal function on serum levels of galectin 3, B-type natriuretic peptides and cardiac troponin T. AB - AIM: Levels of plasma markers of myocardial fibrosis (galectin-3), stretch (B type natriuretic peptide (BNP)) and injury (high-sensitivity troponin T (hs-TnT)) are affected by haemodialysis, residual renal function (RRF) and cardiac pathology. We aimed to determine the association of RRF, urine output and haemodialysis itself on cardiac biomarkers in haemodialysis patients. METHODS: Adult haemodialysis patients underwent venesection pre- and post-haemodialysis then echocardiography and inter-dialytic urine collection to calculate RRF (mL/min per 1.73m2 ) and urine output (mL/day). Galectin-3, BNP-32, NT-ProBNP and hs-TnT levels were compared across tertiles of echocardiographic parameters, RRF and urine output using the non-parametric test for trend across ordered groups. RESULTS: Twenty-three patients (17 male) with mean age 67.7+/-13.8 years and median (interquartile range) dialysis duration 13.6 (9.8-19.1) months participated. Galectin-3 was substantially lower following haemodialysis: 55 ng/mL (47-70) versus 23 ng/mL (19-27, P < 0.001), but other biomarkers changed little. By increasing RRF tertile, post-dialysis galectin-3 was 32.6 ng/mL (23.7 36.6), 21.9 ng/mL (19.0-23.2) and 19.0 ng/mL (16.9-21.0, P = 0.001); NT-ProBNP was 10 192 ng/L (2303-21 504), 2037 ng/L (1224-10 795) and 1481 ng/L (172-2890, P = 0.016). Results were similar for daily urine volume, but measured echocardiographic parameters were not associated with biomarker concentrations. CONCLUSION: Plasma concentration of galectin-3 is reduced by the haemodialysis procedure. Lower RRF and urine volume are strongly associated with higher levels of galectin-3 and NT-Pro-BNP. These associations are important to the clinical interpretation of these biomarker levels in haemodialysis patients. PMID- 29028163 TI - Early Detection of Urinary Proteome Biomarkers for Effective Early Treatment of Pulmonary Fibrosis in a Rat Model. AB - SCOPE: Pulmonary fibrosis (PF) is a progressive and devastating lung disease. With limited effective treatments available in the late stage, PF has a very poor prognosis. Molecular biomarkers are highly desired for PF, especially for its early phase. MATERIALS AND METHODS: Urine is a good biomarker source, and accumulates systemic changes in the body especially in the early-stage of diseases. In this study, a bleomycin (BLM)-induced rat model is used to mimic PF. Using labeled proteome quantitation, some urinary proteins are identified as candidate biomarkers of PF for early detection and disease monitoring. Then, prednisone treatment is administered at different phases of fibrosis. RESULTS: Our results suggested that urine proteins could enable early detection and monitoring of both disease progression and treatment efficacy in the BLM-induced PF model. Early prednisone treatment effectively inhibited pulmonary fibrosis, whereas the same treatment at a later phase had very limited effects. Meanwhile, five proteins showed the potential for monitoring therapeutic response. CONCLUSION: Urinary proteomics has been underutilized in respiratory diseases. These findings will improve our understanding of the pathogenesis of PF and accelerate biomarker discovery in respiratory diseases. PMID- 29028164 TI - Executive summary of the 9th meeting of the WHO working group RT-PCR for the detection and subtyping of influenza viruses. PMID- 29028165 TI - Executive summary of the 6th meeting of the WHO Expert Working Group of the GISRS for Surveillance of Antiviral Susceptibility. PMID- 29028166 TI - Continuing risk of meningitis due to Neisseria meningitidis serogroup C in Africa: revised recommendations from a WHO expert consultation. PMID- 29028167 TI - Progress towards eliminating onchocerciasis in the WHO Region of the Americas: elimination of transmission in the north-east focus of the Bolivarian Republic of Venezuela. PMID- 29028168 TI - Synthesis of a Pentasaccharide Fragment Related to the Inner Core Region of Rhizobial and Agrobacterial Lipopolysaccharides. AB - The pentasaccharide fragment alpha-d-Man-(1 -> 5)-[alpha-d-Kdo-(2 -> 4)-]alpha-d Kdo-(2 -> 6)-beta-d-GlcNAc-(1 -> 6)-alpha-d-GlcNAc equipped with a 3-aminopropyl spacer moiety was prepared by a sequential assembly of monosaccharide building blocks. The glucosamine disaccharide-as a backbone surrogate of the bacterial lipid A region-was synthesized using an 1,3-oxazoline donor, which was followed by coupling with an isopropylidene-protected Kdo-fluoride donor to afford a protected tetrasaccharide intermediate. Eventually, an orthogonally protected manno-configured trichloroacetimidate donor was used to achieve the sterically demanding glycosylation of the 5-OH group of Kdo in good yield. The resulting pentasaccharide is suitably protected for further chain elongation at positions 3, 4, and 6 of the terminal mannose. Global deprotection afforded the target pentasaccharide to be used for the conversion into neoglycoconjugates and "clickable" ligands. PMID- 29028169 TI - Aggregation Number in Water/n-Hexanol Molecular Clusters Formed in Cyclohexane at Different Water/n-Hexanol/Cyclohexane Compositions Calculated by Titration 1H NMR. AB - Upon titration of n-hexanol/cyclohexane mixtures of different molar compositions with water, water/n-hexanol clusters are formed in cyclohexane. Here, we develop a new method to estimate the water and n-hexanol aggregation numbers in the clusters that combines integration analysis in one-dimensional 1H NMR spectra, diffusion coefficients calculated by diffusion-ordered NMR spectroscopy, and further application of the Stokes-Einstein equation to calculate the hydrodynamic volume of the clusters. Aggregation numbers of 5-15 molecules of n-hexanol per cluster in the absence of water were observed in the whole range of n hexanol/cyclohexane molar fractions studied. After saturation with water, aggregation numbers of 6-13 n-hexanol and 0.5-5 water molecules per cluster were found. O-H and O-O atom distances related to hydrogen bonds between donor/acceptor molecules were theoretically calculated using density functional theory. The results show that at low n-hexanol molar fractions, where a robust hydrogen-bond network is held between n-hexanol molecules, addition of water makes the intermolecular O-O atom distance shorter, reinforcing molecular association in the clusters, whereas at high n-hexanol molar fractions, where dipole-dipole interactions dominate, addition of water makes the intermolecular O O atom distance longer, weakening the cluster structure. This correlates with experimental NMR results, which show an increase in the size and aggregation number in the clusters upon addition of water at low n-hexanol molar fractions, and a decrease of these magnitudes at high n-hexanol molar fractions. In addition, water produces an increase in the proton exchange rate between donor/acceptor molecules at all n-hexanol molar fractions. PMID- 29028170 TI - Mediating Reductive Charge Shift Reactions in Electron Transport Chains. AB - We report the synthesis of a full-fledged family of covalent electron donor acceptor1-acceptor2 conjugates and their charge-transfer characterization by means of advanced photophysical assays. By virtue of variable excited state energies and electron donor strengths, either Zn(II)Porphyrins or Zn(II)Phthalocyanines were linked to different electron-transport chains featuring pairs of electron accepting fullerenes, that is, C60 and C70. In this way, a fine-tuned redox gradient is established to power a unidirectional, long range charge transport from the excited-state electron donor via a transient C60* toward C70*-. This strategy helps minimize energy losses in the reductive, short range charge shift from C60 to C70. At the forefront of our investigations are excited-state dynamics deduced from femtosecond transient absorption spectroscopic measurements and subsequent computational deconvolution of the transient absorption spectra. These provide evidence for cascades of short-range charge-transfer processes, including reductive charge shift reactions between the two electron-accepting fullerenes, and for kinetics that are influenced by the nature and length of the respective spacer. Of key importance is the postulate of a mediating state in the charge-shift reaction at weak electronic couplings. Our results point to an intimate relationship between triplet-triplet energy transfer and charge transfer. PMID- 29028172 TI - Influences of Histidine-1 and Azaphenylalanine-4 on the Affinity, Anti inflammatory, and Antiangiogenic Activities of Azapeptide Cluster of Differentiation 36 Receptor Modulators. AB - Azapeptide analogues of growth hormone releasing peptide-6 (GHRP-6) exhibit promising affinity, selectivity, and modulator activity on the cluster of differentiation 36 receptor (CD36). For example, [A1, azaF4]- and [azaY4]-GHRP-6 (1a and 2b) were previously shown to bind selectively to CD36 and exhibited respectively significant antiangiogenic and slight angiogenic activities in a microvascular sprouting assay using choroid explants. The influences of the 1- and 4-position residues on the affinity, anti-inflammatory, and antiangiogenic activity of these azapeptides have now been studied in detail by the synthesis and analysis of a set of 25 analogues featuring Ala1 or His1 and a variety of aromatic side chains at the aza-amino acid residue in the 4-position. Although their binding affinities differed only by a factor of 17, the analogues exhibited significant differences in ability to modulate production of nitric oxide (NO) in macrophages and choroidal neovascularization. PMID- 29028171 TI - Structure-Based Design of Non-natural Macrocyclic Peptides That Inhibit Protein Protein Interactions. AB - Macrocyclic peptides can interfere with challenging biomolecular targets including protein-protein interactions. Whereas there are various approaches that facilitate the identification of peptide-derived ligands, their evolution into higher affinity binders remains a major hurdle. We report a virtual screen based on molecular docking that allows the affinity maturation of macrocyclic peptides taking non-natural amino acids into consideration. These macrocycles bear large and flexible substituents that usually complicate the use of docking approaches. A virtual library containing more than 1400 structures was screened against the target focusing on docking poses with the core structure resembling a known bioactive conformation. Based on this screen, a macrocyclic peptide 22 involving two non-natural amino acids was evolved showing increased target affinity and biological activity. Predicted binding modes were verified by X-ray crystallography. The presented workflow allows the screening of large macrocyclic peptides with diverse modifications thereby expanding the accessible chemical space and reducing synthetic efforts. PMID- 29028175 TI - The Information Content of Discrete Functions and Their Application in Genetic Data Analysis. AB - The complex of central problems in data analysis consists of three components: (1) detecting the dependence of variables using quantitative measures, (2) defining the significance of these dependence measures, and (3) inferring the functional relationships among dependent variables. We have argued previously that an information theory approach allows separation of the detection problem from the inference of functional form problem. We approach here the third component of inferring functional forms based on information encoded in the functions. We present here a direct method for classifying the functional forms of discrete functions of three variables represented in data sets. Discrete variables are frequently encountered in data analysis, both as the result of inherently categorical variables and from the binning of continuous numerical variables into discrete alphabets of values. The fundamental question of how much information is contained in a given function is answered for these discrete functions, and their surprisingly complex relationships are illustrated. The all important effect of noise on the inference of function classes is found to be highly heterogeneous and reveals some unexpected patterns. We apply this classification approach to an important area of biological data analysis-that of inference of genetic interactions. Genetic analysis provides a rich source of real and complex biological data analysis problems, and our general methods provide an analytical basis and tools for characterizing genetic problems and for analyzing genetic data. We illustrate the functional description and the classes of a number of common genetic interaction modes and also show how different modes vary widely in their sensitivity to noise. PMID- 29028176 TI - A Biclique Approach to Reference-Anchored Gene Blocks and Its Applications to Genomic Islands. AB - We formalize a new problem variant in gene-block discovery, denoted Reference Anchored Gene Blocks (RAGB), given a query sequence Q of length n, representing the gene array of a DNA element, a window size bound d on the length of a substring of interest in Q, and a set of target gene sequences [Formula: see text]. Our objective is to identify gene blocks in [Formula: see text] that are centered in a subset q of co-localized genes from Q, and contain genomes from [Formula: see text] in which the corresponding orthologs of the genes from q are also co-localized. We cast RAGB as a variant of a (colored) biclique problem in bipartite graphs, and analyze its parameterized complexity, as well as the parameterized complexity of other related problems. We give an [Formula: see text] time algorithm for the uncolored variant of our biclique problem, where m is the number of areas of interest that are parsed from the target sequences, and n and d are as defined earlier. Our algorithm can be adapted to compute all maximal bicliques in the graph within the same time complexity, and to handle edge weights with a slight [Formula: see text] increase to its time complexity. For the colored version of the problem, our algorithm has a time complexity of [Formula: see text]. We implement the algorithm and exemplify its application to the data mining of proteobacterial gene blocks that are centered in predicted proteobacterial genomic islands, leading to the identification of putatively mobilized clusters of virulence, pathogenicity, and resistance genes. PMID- 29028174 TI - Could Frequent Carbapenem Use Be a Risk Factor for Colistin Resistance? AB - AIMS: The antibiotic colistin, which had been previously abandoned, is being brought back as a last line of defense against bacterial infection. However, colistin resistance was reported shortly after its reintroduction. This study evaluated the risk factors for colonization/infections due to colistin-resistant Acinetobacter baumannii (ColR-Ab) and Klebsiella pneumoniae (ColR-Kp) strains and characterized the molecular epidemiology of these two strains. RESULTS: Age, previous hospitalization duration, and previous use of carbapenem and colistin were risk factors for ColR-Kp, whereas previous use of carbapenem and colistin was a risk factor for ColR-Ab. According to pulsed-field gel electrophoresis analysis, most ColR-Kp strains could be grouped into two major pulsotypes. This appears to be an indicator of cross contamination of ColR-Kp strain, since different isolates appeared to be belonging to the same clones. The existence of colistin-susceptible (ColS) and colistin-resistant (ColR) strains in the same pulsotypes might also be an indicator of the recent emergence of resistance mechanisms. CONCLUSIONS: The results highlight the emergence of ColR pathogens in Turkey, which is considered to be developing country, and that carbapenem use coupled with insufficient infection control measures might increase the risk of ColR outbreaks. PMID- 29028177 TI - Postmeal increment in intact glucagon-like peptide 1 level, but not intact glucose-dependent insulinotropic polypeptide levels, is inversely associated with metabolic syndrome in patients with type 2 diabetes. AB - PURPOSE: Metabolic syndrome increases the risk of cardiovascular disease. Recently glucagon-like peptide 1 (GLP-1) agonists proved to be effective in preventing cardiovascular disease (CVD) in patients with type 2 diabetes. We investigated the association of blood incretin levels with metabolic syndrome in patients with type 2 diabetes. MATERIALS AND METHODS: This is a cross-sectional study involving 334 people with type 2 diabetes. Intact GLP-1 (iGLP-1) and intact glucose-dependent insulinotropic polypeptide (iGIP) levels were measured in a fasted state and 30 min after ingestion of a standard mixed meal. Metabolic syndrome was diagnosed based on the criteria of the International Diabetes Federation. RESULTS: Two hundred twenty-five (69%) of the subjects have metabolic syndrome. The fasting iGLP-1 level was no different between groups. Thirty-min postprandial iGLP-1 was non-significantly lower in the subjects who had metabolic syndrome. Incremental iGLP-1 (DeltaiGLP-1, the difference between 30-min postmeal and fasting iGLP-1 levels) was significantly lower in those with metabolic syndrome. There were no significant differences in fasting iGIP, postprandial iGIP, and DeltaiGIP between groups. The DeltaiGLP-1, but not DeltaiGIP levels decreased significantly as the number of metabolic syndrome components increased. In hierarchical logistic regression analysis, the DeltaiGLP-1 level was found to be a significant contributor to metabolic syndrome even after adjusting for other covariates. CONCLUSION: Taken together, the iGLP-1 increment in the 30 min after meal ingestion is inversely associated with metabolic syndrome in patients with type 2 diabetes. This suggests that postmeal iGLP-1 increment could be useful in assessing cardiovascular risk in type 2 diabetes. PMID- 29028178 TI - Zika Virus: Immune Evasion Mechanisms, Currently Available Therapeutic Regimens, and Vaccines. AB - The sudden emergence of infectious pathogens such as Zika virus (ZIKV) holds global health concerns. Recent dissemination of ZIKV from Pacific to Americas with an upsurge of congenital anomalies and Guillain Barre Syndrome (GBS) in adults has created an alarming situation. High-throughput studies are in progress to understand ZIKV's mode of pathogenesis and mechanism of immune escape, yet the pathogenesis remains obscure. Mainly ZIKV's envelope (E) protein and nonstructural proteins (mainly NS1 and NS5) manipulate host cell to support viral immune escape by modulation of the interferon pathway and complement antagonism. The development of direct therapeutics for ZIKV infection is required to overcome the rapidly evolving viral threat. Currently, the existing strategies for ZIKV treatment are only supportive. Although, there is no prophylactic or therapeutic vaccine presently available, however, recent efforts have brought up ZIKV vaccines into clinical trial phase 1. This review presents the highlights of recent advances in understanding immune evasion strategies adapted by ZIKV and existing therapies against the virus. PMID- 29028179 TI - Reconstructing One-Articulated Networks with Distance Matrices. AB - Given a distance matrix M that represents evolutionary distances between any two species, an edge-weighted phylogenetic network N is said to satisfy M if between any pair of species, there exists a path in N with a length equal to the corresponding entry in M. In this article, we consider a special class of networks called a one-articulated network, which is a proper superset of galled trees. We show that if the distance matrix M is derived from an ultrametric one articulated network N (i.e., for any species X and Y, the entry [Formula: see text] is equal to the shortest distance between X and Y in N), we can re construct a network that satisfies M in [Formula: see text] time, where n denotes the number of species; further, the reconstructed network is guaranteed to be the simplest, in a sense that the number of hybrid nodes is minimized. In addition, one may easily index a one-articulated network N with a minimum number of hybrid nodes in [Formula: see text] space, such that on any given phylogenetic tree T, we can determine whether T is contained in N (i.e., if a spanning subtree [Formula: see text] of N is a subdivision of T) in [Formula: see text] time. PMID- 29028180 TI - Stakeholder Education for Community-Wide Health Initiatives: A Focus on Teen Pregnancy Prevention. AB - Teen pregnancies and births continue to decline due in part to implementation of evidence-based interventions and clinical strategies. While local stakeholder education is also thought to be critical to this success, little is known about what types of strategies work best to engage stakeholders. With the goal of identifying and describing evidence-based or best practice strategies for stakeholder education in community-based public health initiatives, we conducted a systematic literature review of strategies used for effective stakeholder education. Over 400 articles were initially retrieved; 59 articles met inclusion criteria. Strategies were grouped into four steps that communities can use to support stakeholder education efforts: identify stakeholder needs and resources, develop a plan, develop tailored and compelling messaging, and use implementation strategies. These strategies lay a framework for high-quality stakeholder education. In future research, it is important to prioritize evaluating specific activities taken to raise awareness, educate, and engage a community in community wide public health efforts. PMID- 29028181 TI - Unbiased Taxonomic Annotation of Metagenomic Samples. AB - The classification of reads from a metagenomic sample using a reference taxonomy is usually based on first mapping the reads to the reference sequences and then classifying each read at a node under the lowest common ancestor of the candidate sequences in the reference taxonomy with the least classification error. However, this taxonomic annotation can be biased by an imbalanced taxonomy and also by the presence of multiple nodes in the taxonomy with the least classification error for a given read. In this article, we show that the Rand index is a better indicator of classification error than the often used area under the receiver operating characteristic (ROC) curve and F-measure for both balanced and imbalanced reference taxonomies, and we also address the second source of bias by reducing the taxonomic annotation problem for a whole metagenomic sample to a set cover problem, for which a logarithmic approximation can be obtained in linear time and an exact solution can be obtained by integer linear programming. Experimental results with a proof-of-concept implementation of the set cover approach to taxonomic annotation in a next release of the TANGO software show that the set cover approach further reduces ambiguity in the taxonomic annotation obtained with TANGO without distorting the relative abundance profile of the metagenomic sample. PMID- 29028182 TI - Hypothesis: RNA and DNA Viral Sequence Integration into the Mammalian Host Genome Supports Long-Term B Cell and T Cell Adaptive Immunity. AB - Viral sequence integration into the mammalian genome has long been perceived as a health risk. In some cases, integration translates to chronic viral infection, and in other instances, oncogenic gene mutations occur. However, research also shows that animal cells can benefit from integrated viral sequences (e.g., to support host cell development or to silence foreign invaders). Here we propose that, comparable with the clustered regularly interspaced short palindromic repeats that provide bacteria with adaptive immunity against invasive bacteriophages, animal cells may co-opt integrated viral sequences to support immune memory. We hypothesize that host cells express viral peptides from open reading frames in integrated sequences to boost adaptive B cell and T cell responses long after replicating viruses are cleared. In support of this hypothesis, we examine previous literature describing (1) viruses that infect acutely (e.g., vaccinia viruses and orthomyxoviruses) followed by unexplained, long-term persistence of viral nucleotide sequences, viral peptides, and virus specific adaptive immunity, (2) the high frequency of endogenous viral genetic elements found in animal genomes, and (3) mechanisms with which animal host machinery supports foreign sequence integration. PMID- 29028185 TI - Time-Varying Time-Frequency Complexity Measures for Epileptic EEG Data Analysis. AB - OBJECTIVE: Our goal is to use existing and to propose new time-frequency entropy measures that objectively evaluate the improvement on epileptic patients after medication by studying their resting state electroencephalography (EEG) recordings. An increase in the complexity of the signals would confirm an improvement in the general state of the patient. METHODS: We review the Renyi entropy based on time-frequency representations, along with its time-varying version. We also discuss the entropy based on singular value decomposition computed from a time-frequency representation, and introduce its corresponding time-dependant version. We test these quantities on synthetic data. Friedman tests are used to confirm the differences between signals (before and after proper medication). Principal component analysis is used for dimensional reduction prior to a simple threshold discrimination. RESULTS: Experimental results show a consistent increase in complexity measures in the different regions of the brain. These findings suggest that extracted features can be used to monitor treatment. When combined, they are useful for classification purposes, with areas under ROC curves higher than 0.93 in some regions. CONCLUSION: Here we applied time-frequency complexity measures to resting state EEG signals from epileptic patients for the first time. We also introduced a new time-varying complexity measure. We showed that these features are able to evaluate the treatment of the patient, and to perform classification. SIGNIFICANCE: The time frequency complexities, and their time-varying versions, can be used to monitor the treatment of epileptic patients. They could be applied to a wider range of problems. PMID- 29028183 TI - Non-synaptic signaling from cerebellar climbing fibers modulates Golgi cell activity. AB - Golgi cells are the principal inhibitory neurons at the input stage of the cerebellum, providing feedforward and feedback inhibition through mossy fiber and parallel fiber synapses. In vivo studies have shown that Golgi cell activity is regulated by climbing fiber stimulation, yet there is little functional or anatomical evidence for synapses between climbing fibers and Golgi cells. Here, we show that glutamate released from climbing fibers activates ionotropic and metabotropic receptors on Golgi cells through spillover-mediated transmission. The interplay of excitatory and inhibitory conductances provides flexible control over Golgi cell spiking, allowing either excitation or a biphasic sequence of excitation and inhibition following single climbing fiber stimulation. Together with prior studies of spillover transmission to molecular layer interneurons, these results reveal that climbing fibers exert control over inhibition at both the input and output layers of the cerebellar cortex. PMID- 29028186 TI - Decoding Covert Somatosensory Attention by a BCI System Calibrated With Tactile Sensation. AB - OBJECTIVE: We propose a novel calibration strategy to facilitate the decoding of covert somatosensory attention by exploring the oscillatory dynamics induced by tactile sensation. METHODS: It was hypothesized that the similarity of the oscillatory pattern between stimulation sensation (SS, real sensation) and somatosensory attentional orientation (SAO) provides a way to decode covert somatic attention. Subjects were instructed to sense the tactile stimulation, which was applied to the left (SS-L) or the right (SS-R) wrist. The brain computer interface (BCI) system was calibrated with the sensation data and then applied for online SAO decoding. RESULTS: Both SS and SAO showed oscillatory activation concentrated on the contralateral somatosensory hemisphere. Offline analysis showed that the proposed calibration method led to a greater accuracy than the traditional calibration method based on SAO only. This is confirmed by online experiments, where the online accuracy on 15 subjects was 78.8 +/- 13.1%, with 12 subjects >70% and 4 subject >90%. CONCLUSION: By integrating the stimulus induced oscillatory dynamics from sensory cortex, covert somatosensory attention can be reliably decoded by a BCI system calibrated with tactile sensation. SIGNIFICANCE: Indeed, real tactile sensation is more consistent during calibration than SAO. This brain-computer interfacing approach may find application for stroke and completely locked-in patients with preserved somatic sensation. PMID- 29028187 TI - Dynamic Video Deblurring Using a Locally Adaptive Blur Model. AB - State-of-the-art video deblurring methods cannot handle blurry videos recorded in dynamic scenes since they are built under a strong assumption that the captured scenes are static. Contrary to the existing methods, we propose a new video deblurring algorithm that can deal with general blurs inherent in dynamic scenes. To handle general and locally varying blurs caused by various sources, such as moving objects, camera shake, depth variation, and defocus, we estimate pixel wise varying non-uniform blur kernels. We infer bidirectional optical flows to handle motion blurs, and also estimate Gaussian blur maps to remove optical blur from defocus. Therefore, we propose a single energy model that jointly estimates optical flows, defocus blur maps and latent frames. We also provide a framework and efficient solvers to minimize the proposed energy model. By optimizing the energy model, we achieve significant improvements in removing general blurs, estimating optical flows, and extending depth-of-field in blurry frames. Moreover, in this work, to evaluate the performance of non-uniform deblurring methods objectively, we have constructed a new realistic dataset with ground truths. In addition, extensive experimental results on publicly available challenging videos demonstrate that the proposed method produces qualitatively superior performance than the state-of-the-art methods which often fail in either deblurring or optical flow estimation. PMID- 29028188 TI - Zero-Shot Learning Using Synthesised Unseen Visual Data with Diffusion Regularisation. AB - Sufficient training examples are the fundamental requirement for most of the learning tasks. However, collecting well-labelled training examples is costly. Inspired by Zero-shot Learning (ZSL) that can make use of visual attributes or natural language semantics as an intermediate level clue to associate low-level features with high-level classes, in a novel extension of this idea, we aim to synthesise training data for novel classes using only semantic attributes. Despite the simplicity of this idea, there are several challenges. First, how to prevent the synthesised data from over-fitting to training classes? Second, how to guarantee the synthesised data is discriminative for ZSL tasks? Third, we observe that only a few dimensions of the learnt features gain high variances whereas most of the remaining dimensions are not informative. Thus, the question is how to make the concentrated information diffuse to most of the dimensions of synthesised data. To address the above issues, we propose a novel embedding algorithm named Unseen Visual Data Synthesis (UVDS) that projects semantic features to the high-dimensional visual feature space. Two main techniques are introduced in our proposed algorithm. (1) We introduce a latent embedding space which aims to reconcile the structural difference between the visual and semantic spaces, meanwhile preserve the local structure. (2) We propose a novel Diffusion Regularisation (DR) that explicitly forces the variances to diffuse over most dimensions of the synthesised data. By an orthogonal rotation (more precisely, an orthogonal transformation), DR can remove the redundant correlated attributes and further alleviate the over-fitting problem. On four benchmark datasets, we demonstrate the benefit of using synthesised unseen data for zero-shot learning. Extensive experimental results suggest that our proposed approach significantly outperforms the state-of-the-art methods. PMID- 29028184 TI - Native KCC2 interactome reveals PACSIN1 as a critical regulator of synaptic inhibition. AB - KCC2 is a neuron-specific K+-Cl- cotransporter essential for establishing the Cl- gradient required for hyperpolarizing inhibition in the central nervous system (CNS). KCC2 is highly localized to excitatory synapses where it regulates spine morphogenesis and AMPA receptor confinement. Aberrant KCC2 function contributes to human neurological disorders including epilepsy and neuropathic pain. Using functional proteomics, we identified the KCC2-interactome in the mouse brain to determine KCC2-protein interactions that regulate KCC2 function. Our analysis revealed that KCC2 interacts with diverse proteins, and its most predominant interactors play important roles in postsynaptic receptor recycling. The most abundant KCC2 interactor is a neuronal endocytic regulatory protein termed PACSIN1 (SYNDAPIN1). We verified the PACSIN1-KCC2 interaction biochemically and demonstrated that shRNA knockdown of PACSIN1 in hippocampal neurons increases KCC2 expression and hyperpolarizes the reversal potential for Cl-. Overall, our global native-KCC2 interactome and subsequent characterization revealed PACSIN1 as a novel and potent negative regulator of KCC2. PMID- 29028189 TI - Non-Rigid Event-by-Event Continuous Respiratory Motion Compensated List-Mode Reconstruction for PET. AB - Respiratory motion during positron emission tomography (PET)/computed tomography (CT) imaging can cause significant image blurring and underestimation of tracer concentration for both static and dynamic studies. In this paper, with the aim to eliminate both intra-cycle and inter-cycle motions, and apply to dynamic imaging, we developed a non-rigid event-by-event (NR-EBE) respiratory motion-compensated list-mode reconstruction algorithm. The proposed method consists of two components: the first component estimates a continuous non-rigid motion field of the internal organs using the internal-external motion correlation. This continuous motion field is then incorporated into the second component, non-rigid MOLAR (NR-MOLAR) reconstruction algorithm to deform the system matrix to the reference location where the attenuation CT is acquired. The point spread function (PSF) and time-of-flight (TOF) kernels in NR-MOLAR are incorporated in the system matrix calculation, and therefore are also deformed according to motion. We first validated NR-MOLAR using a XCAT phantom with a simulated respiratory motion. NR-EBE motion-compensated image reconstruction using both the components was then validated on three human studies injected with 18F-FPDTBZ and one with 18F-fluorodeoxyglucose (FDG) tracers. The human results were compared with conventional non-rigid motion correction using discrete motion field (NR discrete, one motion field per gate) and a previously proposed rigid EBE motion compensated image reconstruction (R-EBE) that was designed to correct for rigid motion on a target lesion/organ. The XCAT results demonstrated that NR-MOLAR incorporating both PSF and TOF kernels effectively corrected for non-rigid motion. The 18F-FPDTBZ studies showed that NR-EBE out-performed NR-Discrete, and yielded comparable results with R-EBE on target organs while yielding superior image quality in other regions. The FDG study showed that NR-EBE clearly improved the visibility of multiple moving lesions in the liver where some of them could not be discerned in other reconstructions, in addition to improving quantification. These results show that NR-EBE motion-compensated image reconstruction appears to be a promising tool for lesion detection and quantification when imaging thoracic and abdominal regions using PET. PMID- 29028190 TI - A Hybrid Solution for Simultaneous Transfer of Ultrastable Optical Frequency, RF Frequency, and UTC Time-Tags Over Optical Fiber. AB - We describe a fiber-optic solution for simultaneous distribution of all signals generated at today's most advanced time and frequency laboratories, i.e., an ultrastable optical reference frequency derived from an optical atomic clock, a radio frequency precisely linked to a realization of the SI-Second, and a realization of an atomic timescale, being the local representation of the virtual, global UTC timescale. In our solution both the phase of the optical carrier and the delay of electrical signals (10-MHz frequency reference and one pulse-per-second time tags) are stabilized against environmental perturbations influencing the fiber link instability and accuracy. We experimentally demonstrate optical transfer stabilities of and for 100 s averaging period, for optical carrier and 10-MHz signals, respectively. PMID- 29028191 TI - Deep Neural Networks for No-Reference and Full-Reference Image Quality Assessment. AB - We present a deep neural network-based approach to image quality assessment (IQA). The network is trained end-to-end and comprises ten convolutional layers and five pooling layers for feature extraction, and two fully connected layers for regression, which makes it significantly deeper than related IQA models. Unique features of the proposed architecture are that: 1) with slight adaptations it can be used in a no-reference (NR) as well as in a full-reference (FR) IQA setting and 2) it allows for joint learning of local quality and local weights, i.e., relative importance of local quality to the global quality estimate, in an unified framework. Our approach is purely data-driven and does not rely on hand crafted features or other types of prior domain knowledge about the human visual system or image statistics. We evaluate the proposed approach on the LIVE, CISQ, and TID2013 databases as well as the LIVE In the wild image quality challenge database and show superior performance to state-of-the-art NR and FR IQA methods. Finally, cross-database evaluation shows a high ability to generalize between different databases, indicating a high robustness of the learned features. PMID- 29028192 TI - Reversion Correction and Regularized Random Walk Ranking for Saliency Detection. AB - In recent saliency detection research, many graph-based algorithms have applied boundary priors as background queries, which may generate completely "reversed" saliency maps if the salient objects are on the image boundaries. Moreover, these algorithms usually depend heavily on pre-processed superpixel segmentation, which may lead to notable degradation in image detail features. In this paper, a novel saliency detection method is proposed to overcome the above issues. First, we propose a saliency reversion correction process, which locates and removes the boundary-adjacent foreground superpixels, and thereby increases the accuracy and robustness of the boundary prior-based saliency estimations. Second, we propose a regularized random walk ranking model, which introduces prior saliency estimation to every pixel in the image by taking both region and pixel image features into account, thus leading to pixel-detailed and superpixel-independent saliency maps. Experiments are conducted on four well-recognized data sets; the results indicate the superiority of our proposed method against 14 state-of-the-art methods, and demonstrate its general extensibility as a saliency optimization algorithm. We further evaluate our method on a new data set comprised of images that we define as boundary adjacent object saliency, on which our method performs better than the comparison methods. PMID- 29028193 TI - Landmark-Based Shape Encoding and Sparse-Dictionary Learning in the Continuous Domain. AB - We provide a generic framework to learn shape dictionaries of landmark-based curves that are defined in the continuous domain. We first present an unbiased alignment method that involves the construction of a mean shape as well as training sets whose elements are subspaces that contain all affine transformations of the training samples. The alignment relies on orthogonal projection operators that have a closed form. We then present algorithms to learn shape dictionaries according to the structure of the data that needs to be encoded: 1) projection-based functional principal-component analysis for homogeneous data and 2) continuous-domain sparse shape encoding to learn dictionaries that contain imbalanced data, outliers, or different types of shape structures. Through parametric spline curves, we provide a detailed and exact implementation of our method. We demonstrate that it requires fewer parameters than purely discrete methods and that it is computationally more efficient and accurate. We illustrate the use of our framework for dictionary learning of structures in biomedical images as well as for shape analysis in bioimaging. PMID- 29028194 TI - Temporal Scalability of Dynamic Volume Data Using Mesh Compensated Wavelet Lifting. AB - Due to their high resolution, dynamic medical 2D+t and 3D+t volumes from computed tomography (CT) and magnetic resonance tomography (MR) reach a size which makes them very unhandy for teleradiologic applications. A lossless scalable representation offers the advantage of a down-scaled version which can be used for orientation or previewing, while the remaining information for reconstructing the full resolution is transmitted on demand. The wavelet transform offers the desired scalability. A very high quality of the lowpass sub-band is crucial in order to use it as a down-scaled representation. We propose an approach based on compensated wavelet lifting for obtaining a scalable representation of dynamic CT and MR volumes with very high quality. The mesh compensation is feasible to model the displacement in dynamic volumes which is mainly given by expansion and contraction of tissue over time. To achieve this, we propose an optimized estimation of the mesh compensation parameters to optimally fit for dynamic volumes. Within the lifting structure, the inversion of the motion compensation is crucial in the update step. We propose to take this inversion directly into account during the estimation step and can improve the quality of the lowpass sub band by 0.63 and 0.43 dB on average for our tested dynamic CT and MR volumes at the cost of an increase of the rate by 2.4% and 1.2% on average. PMID- 29028195 TI - Tensor Rank Preserving Discriminant Analysis for Facial Recognition. AB - Facial recognition, one of the basic topics in computer vision and pattern recognition, has received substantial attention in recent years. However, for those traditional facial recognition algorithms, the facial images are reshaped to a long vector, thereby losing part of the original spatial constraints of each pixel. In this paper, a new tensor-based feature extraction algorithm termed tensor rank preserving discriminant analysis (TRPDA) for facial image recognition is proposed; the proposed method involves two stages: in the first stage, the low dimensional tensor subspace of the original input tensor samples was obtained; in the second stage, discriminative locality alignment was utilized to obtain the ultimate vector feature representation for subsequent facial recognition. On the one hand, the proposed TRPDA algorithm fully utilizes the natural structure of the input samples, and it applies an optimization criterion that can directly handle the tensor spectral analysis problem, thereby decreasing the computation cost compared those traditional tensor-based feature selection algorithms. On the other hand, the proposed TRPDA algorithm extracts feature by finding a tensor subspace that preserves most of the rank order information of the intra-class input samples. Experiments on the three facial databases are performed here to determine the effectiveness of the proposed TRPDA algorithm. PMID- 29028196 TI - Edge Probability and Pixel Relativity-Based Speckle Reducing Anisotropic Diffusion. AB - Anisotropic diffusion filters are one of the best choices for speckle reduction in the ultrasound images. These filters control the diffusion flux flow using local image statistics and provide the desired speckle suppression. However, inefficient use of edge characteristics results in either oversmooth image or an image containing misinterpreted spurious edges. As a result, the diagnostic quality of the images becomes a concern. To alleviate such problems, a novel anisotropic diffusion-based speckle reducing filter is proposed in this paper. A probability density function of the edges along with pixel relativity information is used to control the diffusion flux flow. The probability density function helps in removing the spurious edges and the pixel relativity reduces the oversmoothing effects. Furthermore, the filtering is performed in superpixel domain to reduce the execution time, wherein a minimum of 15% of the total number of image pixels can be used. For performance evaluation, 31 frames of three synthetic images and 40 real ultrasound images are used. In most of the experiments, the proposed filter shows a better performance as compared to the state-of-the-art filters in terms of the speckle region's signal-to-noise ratio and mean square error. It also shows a comparative performance for figure of merit and structural similarity measure index. Furthermore, in the subjective evaluation, performed by the expert radiologists, the proposed filter's outputs are preferred for the improved contrast and sharpness of the object boundaries. Hence, the proposed filtering framework is suitable to reduce the unwanted speckle and improve the quality of the ultrasound images. PMID- 29028197 TI - Multi-Task Vehicle Detection With Region-of-Interest Voting. AB - Vehicle detection is a challenging problem in autonomous driving systems, due to its large structural and appearance variations. In this paper, we propose a novel vehicle detection scheme based on multi-task deep convolutional neural networks (CNNs) and region-of-interest (RoI) voting. In the design of CNN architecture, we enrich the supervised information with subcategory, region overlap, bounding-box regression, and category of each training RoI as a multi-task learning framework. This design allows the CNN model to share visual knowledge among different vehicle attributes simultaneously, and thus, detection robustness can be effectively improved. In addition, most existing methods consider each RoI independently, ignoring the clues from its neighboring RoIs. In our approach, we utilize the CNN model to predict the offset direction of each RoI boundary toward the corresponding ground truth. Then, each RoI can vote those suitable adjacent bounding boxes, which are consistent with this additional information. The voting results are combined with the score of each RoI itself to find a more accurate location from a large number of candidates. Experimental results on the real world computer vision benchmarks KITTI and the PASCAL2007 vehicle data set show that our approach achieves superior performance in vehicle detection compared with other existing published works. PMID- 29028198 TI - A Benchmark Dataset and Saliency-Guided Stacked Autoencoders for Video-Based Salient Object Detection. AB - Image-based salient object detection (SOD) has been extensively studied in past decades. However, video-based SOD is much less explored due to the lack of large scale video datasets within which salient objects are unambiguously defined and annotated. Toward this end, this paper proposes a video-based SOD dataset that consists of 200 videos. In constructing the dataset, we manually annotate all objects and regions over 7650 uniformly sampled keyframes and collect the eye tracking data of 23 subjects who free-view all videos. From the user data, we find that salient objects in a video can be defined as objects that consistently pop-out throughout the video, and objects with such attributes can be unambiguously annotated by combining manually annotated object/region masks with eye-tracking data of multiple subjects. To the best of our knowledge, it is currently the largest dataset for video-based salient object detection. Based on this dataset, this paper proposes an unsupervised baseline approach for video based SOD by using saliency-guided stacked autoencoders. In the proposed approach, multiple spatiotemporal saliency cues are first extracted at the pixel, superpixel, and object levels. With these saliency cues, stacked autoencoders are constructed in an unsupervised manner that automatically infers a saliency score for each pixel by progressively encoding the high-dimensional saliency cues gathered from the pixel and its spatiotemporal neighbors. In experiments, the proposed unsupervised approach is compared with 31 state-of-the-art models on the proposed dataset and outperforms 30 of them, including 19 image-based classic (unsupervised or non-deep learning) models, six image-based deep learning models, and five video-based unsupervised models. Moreover, benchmarking results show that the proposed dataset is very challenging and has the potential to boost the development of video-based SOD. PMID- 29028199 TI - Tensor Factorization for Low-Rank Tensor Completion. AB - Recently, a tensor nuclear norm (TNN) based method was proposed to solve the tensor completion problem, which has achieved state-of-the-art performance on image and video inpainting tasks. However, it requires computing tensor singular value decomposition (t-SVD), which costs much computation and thus cannot efficiently handle tensor data, due to its natural large scale. Motivated by TNN, we propose a novel low-rank tensor factorization method for efficiently solving the 3-way tensor completion problem. Our method preserves the low-rank structure of a tensor by factorizing it into the product of two tensors of smaller sizes. In the optimization process, our method only needs to update two smaller tensors, which can be more efficiently conducted than computing t-SVD. Furthermore, we prove that the proposed alternating minimization algorithm can converge to a Karush-Kuhn-Tucker point. Experimental results on the synthetic data recovery, image and video inpainting tasks clearly demonstrate the superior performance and efficiency of our developed method over state-of-the-arts including the TNN and matricization methods. PMID- 29028200 TI - Automatic Optimization of Wayfinding Design. AB - Wayfinding signs play an important role in guiding users to navigate in a virtual environment and in helping pedestrians to find their ways in a real-world architectural site. Conventionally, the wayfinding design of a virtual environment is created manually, so as the wayfinding design of a real-world architectural site. The many possible navigation scenarios, as well as the interplay between signs and human navigation, can make the manual design process overwhelming and non-trivial. As a result, creating a wayfinding design for a typical layout can take months to several years. In this paper, we introduce the Way to Go! approach for automatically generating a wayfinding design for a given layout. The designer simply has to specify some navigation scenarios; our approach will automatically generate an optimized wayfinding design with signs properly placed considering human agents' visibility and possibility of making mistakes during a navigation. We demonstrate the effectiveness of our approach in generating wayfinding designs for different layouts such as a train station, a downtown and a canyon. We evaluate our results by comparing different wayfinding designs and show that our optimized wayfinding design can guide pedestrians to their destinations effectively and efficiently. Our approach can also help the designer visualize the accessibility of a destination from different locations, and correct any "blind zone" with additional signs. PMID- 29028201 TI - Summed Area Tables for Cube Maps. AB - The original Summed Area Table (SAT) structure is designed for handling 2D rectangular data. Due to the nature of spherical functions, the SAT structure cannot handle cube maps directly. This paper proposes a new SAT structure for cube maps and develops the corresponding lookup algorithm. Our formulation starts by considering a cube map as part of an auxiliary 3D function defined in a 3D rectangular space. We interpret the 2D integration process over the cube map surface as a 3D integration over the auxiliary 3D function. One may suggest that we can create a 3D SAT for this auxiliary function, and then use the 3D SAT to achieve the 3D integration. However, it is not practical to generate or store this special 3D SAT directly. This 3D SAT has some nice properties that allow us to store it in a storage-friendly data structure, namely Summed Area Cube Map (SACM). A SACM can be stored in a standard cube map texture. The lookup algorithm of our SACM structure can be implemented efficiently on current graphics hardware. In addition, the SACM structure inherits the favorable properties of the original SAT structure. PMID- 29028202 TI - Feature-based Volumetric Terrain Generation and Decoration. AB - Two-dimensional height fields are the most common data structure used for storing and rendering of terrain in offline rendering and especially real-time computer graphics. By its very nature, a height field cannot store terrain structures with multiple vertical layers such as overhanging cliffs, caves, or arches. This restriction does not apply to volumetric data structures. However, the workflow of manual modelling and editing of volumetric terrain usually is tedious and very time-consuming. Therefore, we propose to use three-dimensional curve-based primitives to efficiently model prominent, large-scale terrain features. We present a technique for volumetric generation of a complete terrain surface from the sparse input data by means of diffusion-based algorithms. By combining an efficient, feature-based toolset with a volumetric terrain representation, the modelling workflow is accelerated and simplified while retaining the full artistic freedom of volumetric terrains. Feature Curves also contain material information that can be complemented with local details by using per-face texture mapping. All stages of our method are GPU-accelerated using compute shaders to ensure interactive editing of terrain. Please note that this paper is an extended version of our previously published work. PMID- 29028203 TI - An Information Theoretical Analysis of Human Insulin-Glucose System Toward the Internet of Bio-Nano Things. AB - Molecular communication is an important tool to understand biological communications with many promising applications in Internet of Bio-Nano Things (IoBNT). The insulin-glucose system is of key significance among the major intra body nanonetworks, since it fulfills metabolic requirements of the body. The study of biological networks from information and communication theoretical (ICT) perspective is necessary for their introduction in the IoBNT framework. Therefore, the objective of this paper is to provide and analyze for the first time in the literature, a simple molecular communication model of the human insulin-glucose system from ICT perspective. The data rate, channel capacity, and the group propagation delay are analyzed for a two-cell network between a pancreatic beta cell and a muscle cell that are connected through a capillary. The results point out a correlation between an increase in insulin resistance and a decrease in the data rate and channel capacity, an increase in the insulin transmission rate, and an increase in the propagation delay. We also propose applications for the introduction of the system in the IoBNT framework. Multi cell insulin glucose system models may be based on this simple model to help in the investigation, diagnosis, and treatment of insulin resistance by means of novel IoBNT applications. PMID- 29028204 TI - Identifying condition-specific modules by clustering multiple networks. AB - Condition-specific modules in multiple networks must be determined to reveal the underlying molecular mechanisms of diseases. Current algorithms exhibit limitations such as low accuracy and high sensitivity to the number of networks because these algorithms discover condition-specific modules in multiple networks by separating specificity and modularity of modules. To overcome these limitations, we characterize condition-specific module as a group of genes whose connectivity is strong in the corresponding network and weak in other networks; this strategy can accurately depict the topological structure of condition specific modules. We then transform the condition-specific module discovery problem into a clustering problem in multiple networks. We develop an efficient heuristic algorithm for the Specific Modules in Multiple Networks (SMMN), which discovers the condition-specific modules by considering multiple networks. By using the artificial networks, we demonstrate that SMMN outperforms state-of-the art methods. In breast cancer networks, stage-specific modules discovered by SMMN are more discriminative in predicting cancer stages than those obtained by other techniques. In pan-cancer networks, cancer-specific modules are more likely to associate with survival time of patients, which is critical for cancer therapy. PMID- 29028205 TI - MPIGeneNet: Parallel Calculation of Gene Co-Expression Networks on Multicore Clusters. AB - In this work, we present MPIGeneNet, a parallel tool that applies Pearson's correlation and Random Matrix Theory to construct gene co-expression networks. It is based on the state-of-the-art sequential tool RMTGeneNet, which provides networks with high robustness and sensitivity at the expenses of relatively long runtimes for large scale input datasets. MPIGeneNet returns the same results as RMTGeneNet but improves the memory management, reduces the I/O cost, and accelerates the two most computationally demanding steps of co-expression network construction by exploiting the compute capabilities of common multicore CPU clusters. Our performance evaluation on two different systems using three typical input datasets shows that MPIGeneNet is significantly faster than RMTGeneNet. As an example, our tool is up to 175.41 times faster on a cluster with eight nodes, each one containing two 12-core Intel Haswell processors. The source code of MPIGeneNet, as well as a reference manual, are available at https://sourceforge.net/projects/mpigenenet/. PMID- 29028206 TI - Grouped Gene Selection of Cancer via Adaptive Sparse Group Lasso Based on Conditional Mutual Information. AB - This paper deals with the problems of cancer classification and grouped gene selection. The weighted gene co-expression network on cancer microarray data is employed to identify modules corresponding to biological pathways, based on which a strategy of dividing genes into groups is presented. Using the conditional mutual information within each divided group, an integrated criterion is proposed and the data-driven weights are constructed. They are shown with the ability to evaluate both the individual gene significance and the influence to improve correlation of all the other pairwise genes in each group. Furthermore, an adaptive sparse group lasso is proposed, by which an improved blockwise descent algorithm is developed. The results on four cancer data sets demonstrate that the proposed adaptive sparse group lasso can effectively perform classification and grouped gene selection. PMID- 29028207 TI - Clustering-based Compression for Population DNA Sequences. AB - Due to the advancement of DNA sequencing techniques, the number of sequenced individual genomes has experienced an exponential growth. Thus, effective compression of this kind of sequences is highly desired. In this work, we present a novel compression algorithm called Reference-based Compression algorithm using the concept of Clustering (RCC). The rationale behind RCC is based on the observation about the existence of substructures within the population sequences. To utilize these substructures, k-means clustering is employed to partition sequences into clusters for better compression. A reference sequence is then constructed for each cluster so that sequences in that cluster can be compressed by referring to this reference sequence. The reference sequence of each cluster is also compressed with reference to a sequence which is derived from all the reference sequences. Experiments show that RCC can further reduce the compressed size by up to 91.0% when compared with state-of-the-art compression approaches. There is a compromise between compressed size and processing time. The current implementation in Matlab has time complexity in a factor of thousands higher than the existing algorithms implemented in C/C++. Further investigation is required to improve processing time in future. PMID- 29028208 TI - Tunable and Lightweight On-Chip Event Detection for Implantable Bladder Pressure Monitoring Devices. AB - Lower urinary tract dysfunctions, such as urinary incontinence and overactive bladder, are conditions that greatly affect the quality of life for millions of individuals worldwide. For those with more complex pathophysiologies, diagnosis of these conditions often requires a urodynamics study, providing physicians with a snapshot view of bladder mechanics. Recent advancements in implantable bladder pressure monitors and advanced data analysis techniques have made diagnosis through chronic monitoring a promising prospect. However, implants targeted at treatment must remain in the bladder for long periods of time, making minimizing power consumption a primary design objective. Currently, much of the typical implant's power draw is due to data transmission. Previous work has demonstrated an adaptive rate transmission technique to reduce power consumption. However, the ultimate reduction in power consumption can only be attained when the device does not transmit bladder pressure samples, but rather bladder events. In this paper, we present an algorithm and circuit level implementation for on-chip bladder pressure data compression and event detection. It is designed to be a complete, tunable, and lightweight diagnosis and treatment framework for bladder pressure monitoring implants, capable of selectively transmitting compressed bladder pressure data with tunable quality, "snapshots" of significant bladder events, or simply indicate events occurred for the highest energy efficiency. The design aims to minimize area through resource reuse, leading to a total area of 1.75 , and employs advanced VLSI techniques for power reduction. With compression and event detection enabled, the design consumes roughly 2.6 nW in TSMC technology. With only event detection, this reduces to 2.1 nW, making this approach ideal for long-life implantable bladder pressure monitoring devices. PMID- 29028210 TI - Extensions to Online Feature Selection Using Bagging and Boosting. AB - Feature subset selection can be used to sieve through large volumes of data and discover the most informative subset of variables for a particular learning problem. Yet, due to memory and other resource constraints (e.g., CPU availability), many of the state-of-the-art feature subset selection methods cannot be extended to high dimensional data, or data sets with an extremely large volume of instances. In this brief, we extend online feature selection (OFS), a recently introduced approach that uses partial feature information, by developing an ensemble of online linear models to make predictions. The OFS approach employs a linear model as the base classifier, which allows the $l_{0}$ -norm of the parameter vector to be constrained to perform feature selection leading to sparse linear models. We demonstrate that the proposed ensemble model typically yields a smaller error rate than any single linear model, while maintaining the same level of sparsity and complexity at the time of testing. PMID- 29028209 TI - Digital Implementation of the Two-Compartmental Pinsky-Rinzel Pyramidal Neuron Model. AB - It is believed that brain-like computing system can be achieved by the fusion of electronics and neuroscience. In this way, the optimized digital hardware implementation of neurons, primary units of nervous system, play a vital role in neuromorphic applications. Moreover, one of the main features of pyramidal neurons in cortical areas is bursting activities that has a critical role in synaptic plasticity. The Pinsky-Rinzel model is a nonlinear two-compartmental model for CA3 pyramidal cell that is widely used in neuroscience. In this paper, a modified Pinsky-Rinzel pyramidal model is proposed by replacing its complex nonlinear equations with piecewise linear approximation. Next, a digital circuit is designed for the simplified model to be able to implement on a low-cost digital hardware, such as field-programmable gate array (FPGA). Both original and proposed models are simulated in MATLAB and next digital circuit simulated in Vivado is compared to show that obtained results are in good agreement. Finally, the results of physical implementation on FPGA are also illustrated. The presented circuit advances preceding designs with regards to the ability to replicate essential characteristics of different firing responses including bursting and spiking in the compartmental model. This new circuit has various applications in neuromorphic engineering, such as developing new neuroinspired chips. PMID- 29028211 TI - Online Heterogeneous Transfer by Hedge Ensemble of Offline and Online Decisions. AB - In this paper, we study the online heterogeneous transfer (OHT) learning problem, where the target data of interest arrive in an online manner, while the source data and auxiliary co-occurrence data are from offline sources and can be easily annotated. OHT is very challenging, since the feature spaces of the source and target domains are different. To address this, we propose a novel technique called OHT by hedge ensemble by exploiting both offline knowledge and online knowledge of different domains. To this end, we build an offline decision function based on a heterogeneous similarity that is constructed using labeled source data and unlabeled auxiliary co-occurrence data. After that, an online decision function is learned from the target data. Last, we employ a hedge weighting strategy to combine the offline and online decision functions to exploit knowledge from the source and target domains of different feature spaces. We also provide a theoretical analysis regarding the mistake bounds of the proposed approach. Comprehensive experiments on three real-world data sets demonstrate the effectiveness of the proposed technique. PMID- 29028212 TI - A Novel Error-Compensation Control for a Class of High-Order Nonlinear Systems With Input Delay. AB - A novel tracking error-compensation-based adaptive neural control scheme is proposed for a class of high-order nonlinear systems with completely unknown nonlinearities and input delay. In the tracking errors of existing papers, there exist the following difficulties: first, output curve always lags behind the desired trajectory, second, some big peak errors cause a decrease in tracking precision, and third, a big initial value of the modified tracking error can make the closed-loop system unstable. To tackle them, three corresponding error compensation terms are constructed, including a prediction and compensation term, an auxiliary signal produced by the constructed auxiliary system, and a damping term. However, inequality amplification caused by high order will weaken the effectiveness of the proposed error-compensation scheme, and the control precision will decrease under an assumption that the lower bounds of the unknown control coefficients should be exactly known. To overcome aforementioned difficulties, in the derivation of the first virtual control law, the radial basis function neural network is used to approximate a hybrid term online constructed by unknown nonlinearities, a lumped control coefficient achieved by state transformation, and the dynamic of the proposed error-compensation terms and desired signal. Meanwhile, input delay is coped with a robust compensation signal constructed based on a finite integral of the past control values. Finally, it is proven that all the closed-loop signals are semiglobally uniformly ultimately bounded. Simulation results demonstrate the effectiveness of the proposed method. PMID- 29028213 TI - Classification of Imbalanced Data by Oversampling in Kernel Space of Support Vector Machines. AB - Historical data sets for fault stage diagnosis in industrial machines are often imbalanced and consist of multiple categories or classes. Learning discriminative models from such data sets is challenging due to the lack of representative data and the bias of traditional classifiers toward the majority class. Sampling methods like synthetic minority oversampling technique (SMOTE) have been traditionally used for such problems to artificially balance the data set before being trained by a classifier. This paper proposes a weighted kernel-based SMOTE (WK-SMOTE) that overcomes the limitation of SMOTE for nonlinear problems by oversampling in the feature space of support vector machine (SVM) classifier. The proposed oversampling algorithm along with a cost-sensitive SVM formulation is shown to improve performance when compared to other baseline methods on multiple benchmark imbalanced data sets. In addition, a hierarchical framework is developed for multiclass imbalanced problems that have a progressive class order. The proposed WK-SMOTE and hierarchical framework are validated on a real-world industrial fault detection problem to identify deterioration in insulation of high-voltage equipments. PMID- 29028214 TI - Dimensionality Reduction in Multiple Ordinal Regression. AB - Supervised dimensionality reduction (DR) plays an important role in learning systems with high-dimensional data. It projects the data into a low-dimensional subspace and keeps the projected data distinguishable in different classes. In addition to preserving the discriminant information for binary or multiple classes, some real-world applications also require keeping the preference degrees of assigning the data to multiple aspects, e.g., to keep the different intensities for co-occurring facial expressions or the product ratings in different aspects. To address this issue, we propose a novel supervised DR method for DR in multiple ordinal regression (DRMOR), whose projected subspace preserves all the ordinal information in multiple aspects or labels. We formulate this problem as a joint optimization framework to simultaneously perform DR and ordinal regression. In contrast to most existing DR methods, which are conducted independently of the subsequent classification or ordinal regression, the proposed framework fully benefits from both of the procedures. We experimentally demonstrate that the proposed DRMOR method (DRMOR-M) well preserves the ordinal information from all the aspects or labels in the learned subspace. Moreover, DRMOR-M exhibits advantages compared with representative DR or ordinal regression algorithms on three standard data sets. PMID- 29028215 TI - Spectral Shape Analysis of Human Torsos: Application to the Evaluation of Scoliosis Surgery Outcome. AB - This paper aims at evaluating the effect of spinal surgery on the torso shape appearance of adolescent patients. Current methods that assess the surgical outcome on the trunk shape are limited to its global asymmetry or rely on unreliable manual measurements. We introduce a novel framework to evaluate pre- to postoperative local asymmetry changes using a spectral representation of the torso shape, more specifically, the Laplacian spectrum (eigenvalues and eigenvectors) of a graph. We conduct a statistical analysis on the eigenvalues to efficiently select the spectral space and determine the significant components between preop and postop groups. On the selected eigenvectors, we propose a local analysis based on the concept of Euler characteristic to detect their local maxima and minima, which are then used to compute local left-right (L-R) asymmetries of torso shape. On 49 patients with a thoracic spinal deformity, the method captures significant pre- to postoperative changes of asymmetry at the waist, shoulder blades, shoulders, and breasts. We have evaluated average correction rates for L-R asymmetry of the waist height (67%), shoulder-blade height (64%) and depth (67%), lateral offset between shoulder and neck (61%), and breast height (52%). Spectral torso shape analysis provides a novel approach to quantify the surgical correction of the scoliotic trunk from local shape asymmetry. The proposed method could help the surgeon to understand the impact of different spinal surgery strategies on the postoperative appearance and choose the one that should provide better patient's satisfaction. PMID- 29028216 TI - Clustering of Morphological Features for Identifying Femur Cavity Subtypes With Difficulties of Intramedullary Nail Implantation. AB - Intramedullary (IM) nail implantation is currently the standard treatment for femoral intertrochanteric fractures. However, individual differences in femur cavity bring a challenge in designing well-matched IM nails and cause difficulties in IM nail implantation. Therefore, there is an intense need to analyze femur cavities to predict difficulties in IM nail implantation to assist the design of IM nails. This study proposed a method to automatically identify subtypes of femur cavities that exhibit differences in potential difficulties in nail implantation by clustering the morphological features of femur models. The unsupervised subtype extraction method offers a scientific approach to stratify patients for designing and choosing well-matched IM nails. First, the quantitative morphological features of 422 femur cavities were extracted from computed tomography patient models. Second, 422 femur cavities were clustered into three distinct subtypes using a density peak-based k-means clustering method to provide a possible solution for the scientific design of IM nails. The effectiveness of the identified subtypes was validated by comparing subtype differences associated with IM nail implantation and the natural attributes of the patient. Quantitative evaluation of the mismatch degree and real clinical cases confirmed that the clustering results were clinically effective, with clear differences in the subtypes. Therefore, particular IM nails designed from the identified subtypes will potentially facilitate IM nail implantation and reduce complications. Compared with state-of-the-art methods, we used the largest scale dataset and unsupervised clustering to achieve subtype identification of femur cavities with clinical significance. PMID- 29028217 TI - Efficacy of Guided Spiral Drawing in the Classification of Parkinson's Disease. AB - BACKGROUND: Change of handwriting can be an early marker for severity of Parkinson's disease but suffers from poor sensitivity and specificity due to inter-subject variations. AIM: This study has investigated the group-difference in the dynamic features during sketching of spiral between PD and control subjects with the aim of developing an accurate method for diagnosing PD patients. METHOD: Dynamic handwriting features were computed for 206 specimens collected from 62 Subjects (31 Parkinson's and 31 Controls). These were analyzed based on the severity of the disease to determine group-difference. Spearman rank correlation coefficient was computed to evaluate the strength of association for the different features. RESULTS: Maximum area under ROC curve (AUC) using the dynamic features during different writing and spiral sketching tasks were in the range of 0.67 to 0.79. However, when angular features ($?boldsymbol{?varphi }$ and ${?boldsymbol{p}_{?boldsymbol{n}}}$) and count of direction inversion during sketching of the spiral were used, AUC improved to 0.933. Spearman correlation coefficient was highest for phi and ${?boldsymbol{p}_{?boldsymbol{n}}}$. CONCLUSION: The angular features and count of direction inversion which can be obtained in real-time while sketching the Archimedean guided spiral on a digital tablet can be used for differentiating between Parkinson's and healthy cohort. PMID- 29028218 TI - Activity Recognition Using Complex Network Analysis. AB - In this paper, we perform complex network analysis on a connectivity dataset retrieved from a monitoring system in order to classify simple daily activities. The monitoring system is composed of a set of wearable sensing modules positioned on the subject's body and the connectivity data consists of the correlation between each pair of modules. A number of network measures are then computed followed by the application of statistical significance and feature selection methods. These methods were implemented for the purpose of reducing the total number of modules in the monitoring system required to provide accurate activity classification. The obtained results show that an overall accuracy of 84.6% for activity classification is achieved, using a random forest classifier, and when considering a monitoring system composed of only two modules positioned at the neck and thigh of the subject's body. PMID- 29028219 TI - Data-Driven Finite-Horizon Approximate Optimal Control for Discrete-Time Nonlinear Systems Using Iterative HDP Approach. AB - This paper presents a data-based finite-horizon optimal control approach for discrete-time nonlinear affine systems. The iterative adaptive dynamic programming (ADP) is used to approximately solve Hamilton-Jacobi-Bellman equation by minimizing the cost function in finite time. The idea is implemented with the heuristic dynamic programming (HDP) involved the model network, which makes the iterative control at the first step can be obtained without the system function, meanwhile the action network is used to obtain the approximate optimal control law and the critic network is utilized for approximating the optimal cost function. The convergence of the iterative ADP algorithm and the stability of the weight estimation errors based on the HDP structure are intensively analyzed. Finally, two simulation examples are provided to demonstrate the theoretical results and show the performance of the proposed method. PMID- 29028221 TI - Quality of Life and Patient-Reported Outcomes Following Proton Radiation Therapy: A Systematic Review. AB - Background: As costs of cancer care rise, the importance of documenting value in oncology increases. Proton beam radiotherapy (PBT) has the potential to reduce toxicities in cancer patients, but is relatively expensive and unproven. Evaluating quality of life (QOL) and patient-reported outcomes (PROs) is essential to establishing PBT's "value" in oncologic therapy. The goal of this systematic review was to assess QOL and PROs in patients treated with PBT. Methods: Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-guided systematic searches were conducted. The PubMed search engine was the primary data source, along with publications found from references of selected articles, and articles known to the authors published through 2017. Seventeen original investigations were found to have sufficient focus and relevance to be incorporated into the systematic review. Results: Studies of skull base (n = 1), brain (n = 1), head/neck (n = 1), lung (n = 1), breast (n = 2), prostate (n = 8), and pediatric (n = 3) malignancies treated with PBT that met eligibility criteria were included. QOL did not deteriorate during PBT for skull base and after PBT for brain tumors, respectively. PROs were higher for PBT than photon-based radiotherapy for both head/neck and lung cancer. Patient reported breast cosmesis was appropriate after PBT and comparable to photon modalities. PBT in various settings of prostate cancer displayed an expected post therapy decline; one study showed improved PROs (rectal urgency, bowel frequency) for PBT, and two others showed PROs/QOL comparable with other modalities. Pediatric studies demonstrated improvements in QOL during therapy, with additional increases thereafter. Conclusions: Based on limited data, PBT provides favorable QOL/PRO profiles for select brain, head/neck, lung, and pediatric cancers; measures for prostate and breast cancers were more modest. These results have implications for cost-effective cancer care and prudently designed QOL evaluation in ongoing trials, which are discussed. Future data could substantially change the conclusions of this review. PMID- 29028223 TI - Are scientific research outputs aligned with national policy makers' priorities? A case study of tuberculosis in Cambodia. AB - With funding for tuberculosis (TB) research decreasing, and the high global disease burden persisting, there are calls for increased investment in TB research. However, justification of such investments is questionable, when translation of research outputs into policy and health care improvements remains a challenge for TB and other diseases. Using TB in Cambodia as a case study, we investigate how evidence needs of national policy makers are addressed by topics covered in research publications. We first conducted a systematic review to compile all studies on TB in Cambodia published since 2000. We then identified priority areas in which evidence for policy and programme planning are required from the perspective of key national TB control stakeholders. Finally, results from the literature review were analysed in relation to the priority research areas for national policy makers to assess overlap and highlight gaps in evidence. Priority research areas were: TB-HIV co-infection; childhood TB; multidrug resistant TB (MDR-TB); and universal and equitable access to quality diagnosis and treatment. On screening 1687 unique papers retrieved from our literature search, 253 were eligible publications focusing on TB in Cambodia. Of these, only 73 (29%) addressed one of the four priority research areas. Overall, 30 (11%), five (2%), seven (2%) and 37 (14%) studies reported findings relevant to TB-HIV, childhood TB, MDR-TB and access to quality diagnosis and treatment respectively. Our analysis shows that a small proportion of the research outputs in Cambodia address priority areas for informing policy and programme planning. This case study illustrates that there is substantial room for improvement in alignment between research outputs and evidence gaps that national policy makers would like to see addressed; better coordination between researchers, funders and policy makers' on identifying priority research topics may increase the relevance of research findings to health policies and programmes. PMID- 29028222 TI - Role of RBP2-Induced ER and IGF1R-ErbB Signaling in Tamoxifen Resistance in Breast Cancer. AB - Background: Despite the benefit of endocrine therapy, acquired resistance during or after treatment still remains a major challenge in estrogen receptor (ER) positive breast cancer. We investigated the potential role of histone demethylase retinoblastoma-binding protein 2 (RBP2) in endocrine therapy resistance of breast cancer. Methods: Survival of breast cancer patients according to RBP2 expression was analyzed in three different breast cancer cohorts including METABRIC (n = 1980) and KM plotter (n = 1764). RBP2-mediated tamoxifen resistance was confirmed by invitro sulforhodamine B (SRB) colorimetric, colony-forming assays, and invivo xenograft models (n = 8 per group). RNA-seq analysis and receptor tyrosine kinase assay were performed to identify the tamoxifen resistance mechanism by RBP2. All statistical tests were two-sided. Results: RBP2 was associated with poor prognosis to tamoxifen therapy in ER-positive breast cancer (P = .04 in HYU cohort, P = .02 in KM plotter, P = .007 in METABRIC, log-rank test). Furthermore, RBP2 expression was elevated in patients with tamoxifen-resistant breast cancer (P = .04, chi-square test). Knockdown of RBP2 conferred tamoxifen sensitivity, whereas overexpression of RBP2 induced tamoxifen resistance invitro and invivo (MCF7 xenograft: tamoxifen-treated control, mean [SD] tumor volume = 70.8 [27.9] mm3, vs tamoxifen-treated RBP2, mean [SD] tumor volume = 387.9 [85.1] mm3, P < .001). Mechanistically, RBP2 cooperated with ER co-activators and corepressors and regulated several tamoxifen resistance-associated genes, including NRIP1, CCND1, and IGFBP4 and IGFBP5. Furthermore, epigenetic silencing of IGFBP4/5 by RBP2-ER-NRIP1-HDAC1 complex led to insulin-like growth factor-1 receptor (IGF1R) activation. RBP2 also increased IGF1R-ErbB crosstalk and subsequent PI3K-AKT activation via demethylase activity-independent ErbB protein stabilization. Combinational treatment with tamoxifen and PI3K inhibitor could overcome RBP2 mediated tamoxifen resistance (RBP2-overexpressing cells: % cell viability [SD], tamoxifen = 89.0 [3.8]%, vs tamoxifen with BKM120 = 41.3 [5.6]%, P < .001). Conclusions: RBP2 activates ER-IGF1R-ErbB signaling cascade in multiple ways to induce tamoxifen resistance, suggesting that RBP2 is a potential therapeutic target for ER-driven cancer. PMID- 29028220 TI - Pediatric brain repair from endogenous neural stem cells of the subventricular zone. AB - There is great interest in the regenerative potential of the neural stem cells and progenitors that populate the germinal zones of the immature brain. Studies using animal models of pediatric brain injuries have provided a clearer understanding of the responses of these progenitors to injury. In this review, we have compared and contrasted the responses of the endogenous neural stem cells and progenitors of the subventricular zone in animal models of neonatal cerebral hypoxia-ischemia, neonatal stroke, congenital cardiac disease, and pediatric traumatic brain injury. We have reviewed the dynamic shifts that occur within this germinal zone with injury as well as changes in known signaling molecules that affect these progenitors. Importantly, we have summarized data on the extent to which cell replacement occurs in response to each of these injuries, opportunities available, and obstacles that will need to be overcome to improve neurological outcomes in survivors. PMID- 29028224 TI - Are global tuberculosis control targets overlooking an essential indicator? Prolonged delays to diagnosis despite high case detection rates in Yunnan, China. AB - Delay in treating active tuberculosis (TB) impedes disease control by allowing ongoing transmission, and may explain the unexpectedly modest declines in global TB incidence. Even though China has achieved TB control targets under the global Directly Observed Treatment, Short course (DOTS) strategy, TB prevalence in western provinces, including Yunnan, is not decreasing. This cross-sectional study investigates whether prolonged delay in identifying and correctly treating TB patients, which is not routinely monitored, persists even when there is a well functioning TB control programme and global targets are being met. Records of adult smear-positive pulmonary TB patients diagnosed with between 2006 and 2013 were extracted from the Yunnan Centre for Disease Control electronic database, which contains information on the entire population of TB patients managed across 129 diagnostic centres. Delay was investigated at three stages: delay to DOTS facility (period between symptom onset and first visit to at a CDC unit providing standardized treatment); delay to TB confirmation (period between reaching a CDC unit and confirmation of smear-positive TB) and delay to treatment (period between confirmation of TB and initiation of treatment). Data from 76 486 patients was analysed. Delay to reaching a DOTS facility was by far the largest contributor to total delay to treatment initiation. The median delay to reaching a DOTS facility, to TB confirmation and to treatment was 57 days (IQR 25-112), 2 days (IQR 1-6) and 1 day (IQR 0-1) respectively. Prolonged delays to reaching a facility providing standardized TB care occurred in a substantial subset of the population despite all TB control targets being met; overall, 32% (24 676) of patients experienced a delay of more than 90 days to reaching a DOTS facility. Policies that focus on reducing delays in accessing appropriate health services, rather than only on increasing overall case-detection rates, may result in greater progress towards reducing TB incidence. PMID- 29028225 TI - Optimising routine surveillance systems for informing tuberculosis control policies in China. PMID- 29028226 TI - Large funding inflows, limited local capacity and emerging disease control priorities: a situational assessment of tuberculosis control in Myanmar. AB - There are numerous challenges in planning and implementing effective disease control programmes in Myanmar, which is undergoing internal political and economic transformations whilst experiencing massive inflows of external funding. The objective of our study-involving key informant discussions, participant observations and linked literature reviews-was to analyse how tuberculosis (TB) control strategies in Myanmar are influenced by the broader political, economic, epidemiological and health systems context using the Systemic Rapid Assessment conceptual and analytical framework. Our findings indicate that the substantial influx of donor funding, in the order of one billion dollars over a 5-year period, may be too rapid for the country's infrastructure to effectively utilize. TB control strategies thus far have tended to favour medical or technological approaches rather than infrastructure development, and appear to be driven more by perceived urgency to 'do something' rather informed by evidence of cost effectiveness and sustainable long-term impact. Progress has been made towards ambitious targets for scaling up treatment of drug-resistant TB, although there are concerns about ensuring quality of care. We also find substantial disparities in health and funding allocation between regions and ethnic groups, which are related to the political context and health system infrastructure. Our situational assessment of emerging TB control strategies in this transitioning health system indicates that large investments by international donors may be pushing Myanmar to scale up TB and drug-resistant TB services too quickly, without due consideration given to the health system (service delivery infrastructure, human resource capacity, quality of care, equity) and epidemiological (evidence of effectiveness of interventions, prevention of new cases) context. PMID- 29028228 TI - Preventing emergence of drug resistant tuberculosis in Myanmar's transitioning health system. AB - Multidrug-resistant tuberculosis (MDR-TB) is a particular threat to the populations of resource-limited countries. Although inadequate treatment of TB has been identified as a major underlying cause of drug resistance, essential information to inform changes in health service delivery and policy is missing. We investigate factors that may be driving the emergence of MDR-TB in Myanmar, a country where investment and health system reforms are ongoing to address the unexplained, high occurrence of MDR-TB. We conducted a multi-centre, retrospective case-control study in 10 townships across Yangon. Cases were 202 GeneXpert-confirmed MDR-TB patients with a history of prior first-line treatment for TB. Controls were 404 previously untreated smear-microscopy confirmed TB patients who had no evidence of resistance to anti-TB drugs. Information on patient and health service factors was collected through face-to-face patient interviews and hospital record reviews. Multivariable logistic regression analysis indicated that the following TB patient groups are at higher risk of developing MDR-TB after initial TB treatment: those who have diabetes (aOR 2.10; 95% CI 1.17-3.76), those who missed taking drugs during the initial treatment more than once weekly (aOR 2.35; 95% CI 1.18-4.65) and those with a higher socioeconomic (aOR 1.99; 95% CI 1.09-3.63) or educational status (aOR 1.78; 95% CI1.01-3.13). Coinciding with a surge in funding to improve health in Myanmar, this study identifies practices of patients and healthcare organizations that can be addressed, and high-risk TB patient groups that can be prioritized for treatment support. Specifically, the study shows that TB patients who experience frequent, short interruptions in treatment and those with diabetes may require enhanced treatment support and monitoring by health services in order to prevent further generation of drug resistance. PMID- 29028229 TI - Tuberculosis control in South East Asia: vignettes from China, Cambodia and Myanmar. PMID- 29028227 TI - A strong TB programme embedded in a developing primary healthcare system is a lose-lose situation: insights from patient and community perspectives in Cambodia. AB - As exemplified by the situation in Cambodia, disease specific (vertical) health programmes are often favoured when the health system is fragile. The potential of such an approach to impede strengthening of primary healthcare services has been studied from a health systems perspective in terms of access and quality of care. In this bottom-up, qualitative study we investigate patient and community member experiences of health services when a strong tuberculosis (TB) programme is embedded into a relatively underutilized primary healthcare system. We conducted six gender-stratified community focus group discussions (n = 49) and seven mixed gender focus group discussions with TB patients (n = 45) in three provinces located in urban, peri-urban and rural areas of Cambodia. Our analysis of health seeking behaviour and experiences for TB and TB-like illness indicates that building a strong vertical TB control programme has had numerous benefits, including awareness of typical symptoms and need to seek care early; confidence in free TB services at public facilities; and willingness to complete treatment. However, there was a clear dichotomy in experiences and behaviour with respect to care-seeking for less severe illness at primary health services, which were generally avoided owing to access barriers and perceived poor quality. The tendency to delay seeking health care until the development of severe symptoms clearly indicative of TB is a major barrier to early diagnosis and treatment of TB. Our study indicates that an imbalance in the strength of vertical and primary health services could be a lose-lose situation as this impedes improvements in health system functioning and constrains progress of vertical disease control programmes. PMID- 29028230 TI - Fine-scale spatial patterns in microbial community composition in an acid mine drainage. AB - Microbial community composition is essential for aquatic ecosystem functions and has been explored across diverse environments and various spatial scales. However, documented patterns are often based on samples from spatially/geographically separated locations or sites. Here, we define sampling volume as spatial scale and examine (by Illumina 16S rRNA sequencing) microbial community composition over a scale of 1 mL to 10 L in an acid mine drainage. beta Diversity analysis revealed that all samples grouped very tightly according to spatial scales and variations between every two scales were significant. Notably, mean beta-diversity within each group was negatively correlated with spatial scales, indicating patchy microbial distribution. Partition of beta-diversity further revealed that it was the relative abundances of some microbial taxa that largely changed among spatial scales. Phylogenetic analysis showed that microbial lineages were not randomly distributed, but displayed a tendency of more phylogenetically clustering at smaller spatial scales. Thus, we documented fine scale spatial patterns in microbial community composition within a continuous aquatic environment, which may have practical implications for adequate sampling of aquatic systems in future studies. PMID- 29028231 TI - Policy, politics and public health. AB - If public health is the field that diagnoses and strives to cure social ills, then understanding political causes and cures for health problems should be an intrinsic part of the field. In this article, we argue that there is no support for the simple and common, implicit model of politics in which scientific evidence plus political will produces healthy policies. Efforts to improve the translation of evidence into policy such as knowledge transfer work only under certain circumstances. These circumstances are frequently political, and to be understood through systematic inquiry into basic features of the political economy such as institutions, partisanship and the organization of labour markets. PMID- 29028232 TI - Towards an overarching European health information system. AB - A European health information system (HIS) supports mutual learning between member states through international comparisons. In addition, it informs international policy agendas. Collaboration between the major stakeholders, most importantly the World Health Organization Regional Office for Europe (WHO-Euro), the European Commission and OECD, is important for member states, as this will contribute to better and more efficiently produced health intelligence. This paper focuses on this 'supra-international' collaboration. Although progress has been made, most notably in relation to joint data collections on monetary and non monetary healthcare statistics, there is still room for improvement, both in relation to the harmonization of indicators and their underlying data collections, and the better coordination of reporting and research and development work. The working environment is complex, and differences between the (scope of the) health information activities of the three international organizations must be accepted. Yet there is enough common ground to build on. In addition, important barriers hampering further progress are the current semantic confusion about what constitutes a(n international) HIS, and inadequate coordination of national positions across various technical and political platforms of the international organizations. A pragmatic, bottom-up approach, instead of technically and strategically complex and comprehensive solutions, seems the best way forward. The current momentum created by EU-level developments and networks like the European Health Information Initiative of WHO-Euro provide an opportunity for taking the overarching European HIS to a next level. PMID- 29028233 TI - Ethics in public health: call for shared moral public health literacy. AB - Public Health (PH) in Europe has become much more vocal about its moral understandings since 1992. The rising awareness that PH issues were inseparable from issues of human rights and social justice almost self-evidently directed the agenda of EUPHA and the European Public Health (EPH)-conferences. Problems of cultural and behavioural change, and environmental issues on a global scale were also added. The Section Ethics in PH invited the EPH community to join in 'arm chair thinking': coming together at conferences not only to share the 'how' and 'what' of PH research, practices and policies but also the 'why'. Time has been reserved to genuinely discuss what moral values are at stake in the work of PH and to actively develop a moral language and framework for PH Ethics. The challenge for the next decades is to find ways to involve the general public in the cultivation of a shared moral PH literacy. PMID- 29028234 TI - What role can civil society organizations have in European health policy? AB - Over the years, the main European institutions active in health [European Union, and the Regional Office for Europe of the World Health Organization (WHO)] have played active roles in policy for public health in Europe. Yet, more recent developments have called into question the place of public health on the European political agenda. In this article, we reflect on how European health policy is set and what the role of civil society organizations (CSOs) can or should be, by showcasing two European associations as examples of how to influence European health policy development and implementation. PMID- 29028235 TI - How to include public health practice and practitioners in a European Network. AB - There is a wide range of different Public Health (PH) activities and programs running in Europe. Besides the richness of national traditions, differences exist in numbers of programs, methods adopted, types of engaged professionals, available resources (including public investments), awareness to the problem and finally in health indicators among and within countries. Promoting networks of PH practices and practitioners strengthens the possibility to share knowledge across organizational, sectorial and geographic boundaries, promotes adaptation and local implementation, fosters innovation in the form of knowledge creation by developing more efficient new services and by sharing effective practices within and between organizations and sectors. Nevertheless, strengthening existing networks and promoting new ones requires coordinated efforts based on complex adaptive systems and network science rules, along with the engagement of local, national and European health authorities. Given these premises, networking promotion and development is a promising way to improve health and wealth to European citizens and communities. PMID- 29028236 TI - EUPHA, a timely adventure. PMID- 29028237 TI - The epidemiological transition in Eastern and Western Europe: a historic natural experiment. AB - Background: The continent of Europe has experienced remarkable changes in the past 25 years, providing scope for natural experiments that offer insight into the complex determinants of health. Methods: We analysed trends in life expectancy at birth in three parts of Europe, those countries that were members of the European Union (EU) prior to 2004, countries that joined the European Union since then, and the twelve countries that emerged from the Soviet Union to form the Commonwealth of Independent States (CIS). The contribution of deaths at different ages to these changes was assessed using Arriaga's method of decomposing changes in life expectancy. Results: Europe remains divided geographically, with an East-West gradient. The former Soviet countries experienced a marked initial decline in life expectancy and have only recovered after 2005. However, the situation for those of working ages is little better than in 1990. The pre-2004 EU has seen substantial gains throughout the past 25 years, although there is some evidence that this may be slowing, or even reversing, at older ages. The countries joining the EU in 2004 subsequently began to see some improvements in the early 1990s, but have experienced larger gains since 2000. Conclusions: Europe offers a valuable natural laboratory for understanding the impact of political, economic, and social changes on health. While the historic divisions of Europe are still visible, there is also evidence that individual countries are doing better or worse than their neighbours, providing many lessons that can be learned from. PMID- 29028238 TI - Demographic trends and public health in Europe. AB - Demographic trends in Europe are currently being shaped by an ageing population, falling fertility rates and diverse migration flows. Fertility rates are lowest in Eastern and Southern Europe with Eastern Europe also experiencing the lowest net migration and an exodus of its working population. All regions in Europe are experiencing aging of their population with some countries having the added burden of high rates of unemployment among the working age population. The impact of these demographic changes on the current and future public health of the country depends on how countries have been preparing and adapting to demographic changes over the past years. Changes in age structure and ethnic composition will put further strain on health care and welfare systems and requires careful planning. A multi-faceted approach which goes beyond the health care system is required and countries need to look beyond their borders in search as to how countries are tackling these important issues. As Europe ages the concept of healthy aging should become an increasing priority focus for European Public Health. PMID- 29028239 TI - Nordic paradox, Southern miracle, Eastern disaster: persistence of inequalities in mortality in Europe. AB - The persistence of socioeconomic inequalities in health, despite all that has been done to reduce social and economic inequalities in many European countries, is one of the great disappointments of public health. In this paper, I summarize the results of a series of studies into the explanation of variations and trends in inequalities in mortality in three European regions: the Nordic countries with their puzzlingly large inequalities in mortality, Southern European countries with their miraculously small inequalities in mortality and Central & Eastern European countries in which inequalities in mortality have disastrously exploded since the early 1990 s. The results of these studies show that inequalities in mortality are remarkably variable and dynamic, which suggests that it may be possible to reduce them if we exploit the entry-points for policy that these studies have also identified, such as poverty, smoking, excessive alcohol consumption and lack of access to health care. At the same time, another lesson is that health inequalities are influenced in sometimes unexpected ways by factors that are not under our control, and that we cannot expect to eliminate these health inequalities soon. PMID- 29028240 TI - Tobacco still a major killer-will we achieve the end game? AB - The game of tobacco use began in Europe in 1560 when the first tobacco seeds were sent from Lisbon to the king of France, by Jean Nicot. From kings' and nobles' exclusive use, it gradually and progressively became popular among the public, as a new player. Eighty-eight years ago (1929), Fritz Linkint, an extraordinary researcher in Germany, while reviewing existing evidence regarding a wide range of cancers potentially caused by smoking, indicated that smoking was a cause of respiratory disease. Despite the overwhelming accumulated evidence of the negative effects of nicotine intake, the prevalence of tobacco use is not expected to decline in the near future. What have we missed thus far in the game that claims more than seven million deaths annually worldwide? Although tobacco use is recognized as a major health problem, the persistent habit creates a dissonance between public health initiatives to reduce tobacco consumption and the choices citizens are making. To understand this dissonance, consideration first must be given to the social meaning attributed to smoking. Second, the political dissonance between health imperatives and social agendas is discussed with regard to relevant theory. Third, health promotion strategies can make a strong contribution to win the game from a negentropic perspective, that is to say, a public health vision that is structured towards an overarching goal. PMID- 29028241 TI - 'Du bist was du isst': challenges in European nutrition policy. AB - Food cultures have developed in communities as according to the produce of local farms in the vicinity. The industrial revolution resulted in large cities and towns becoming reliant on farm produce from the neighbouring countryside; this stimulated development of farming, which itself became industrialized. However, although local diets in Europe differed markedly, the 'healthiness' of all diets was unquestioned until recently. Early in the 20th century, academic departments studying nutrition were established, but it is only since the 1980s that much interest in the 'healthiness' of our food began to be of concern outwith academia. At about this time it was becoming clear that existing patterns of farming and food production were having negative effects on the environment. Since the 1990s, environmental, farming and nutritional sciences have each progressed, but in parallel, and there has been all too little effort to unite them. However, it is clear that, in general, production of foods associated with 'unhealthy' nutrition is also the most damaging from an environmental viewpoint.This article summarizes the evidence on current European diets, analyses costs and benefits in transitioning to healthy and sustainable diets, identifies sustainable dietary guidelines as the way forward and discusses the role of public health in achieving dietary reform in the interests of improved nutrition and environmental protection. PMID- 29028242 TI - Public mental health. AB - Public mental health (PMH) is a major challenge for public health research and practice. This article is organized in six parts. First, we will highlight the significance of PMH; second, we will define mental health and mental disorders; third, we identify and describe determinants of mental health and mental disorders on which we worked in the past 10 years since the establishment of the PMH section such as social determinants and violence. Fourth, we will describe the development of the EUPHA PMH section and provide details on vulnerable groups in the field of PMH, on violence as a main determinant and on suicide as an outcome which affects all countries in the European region. Fifth, we describe policy and practice implications of the development of PMH and highlight the European dimension of PMH. We will conclude this article by providing an outlook on potential further development of PMH as regards research and policy and practice. Finally, we hope that the EUPHA PMH section will contribute to public health in the next 25 years and we can contribute to improvement of PMH in Europe. PMID- 29028243 TI - New challenges of public health: bringing the future of personalised healthcare into focus. AB - The greater personalization of healthcare represents a driver of innovation for research, and for the healthcare systems and industries as a whole. Still policy makers, healthcare professionals, citizens and private companies need to take some steps to realize the potential for such a radical shift. In this paper, we illustrate the challenges, the benefits and consequences that might accompany the implementation of personalized healthcare, and the steps that policy-makers and practitioners would need to take to realise its potential. Six main prerequisites for radical change in healthcare are presented, that include achieving better genetic literacy for professionals and for the public; engaging citizen in the discourse; improved governance, consent and trust in healthcare; feeding and harnessing the data-knowledge cycle for better health; adopting and adapting the Health Technology Assessment framework for the evaluation of the new technologies; and retaining humanity and community in health and care. Some of these concepts originate from a discussion on the future of health and healthcare, looking at least 15-20 years into the future, that we had at the end of 2016 at Ickworth with an international group of experts, under the aegis of the PHG Foundation. PMID- 29028244 TI - Celebrating EUPHA's 25th anniversary. PMID- 29028245 TI - Austerity and health: the impact in the UK and Europe. AB - Austerity measures-reducing social spending and increasing taxation-hurts deprived groups the most. Less is known about the impact on health. In this short review, we evaluate the evidence of austerity's impact on health, through two main mechanisms: a 'social risk effect' of increasing unemployment, poverty, homelessness and other socio-economic risk factors (indirect), and a 'healthcare effect' through cuts to healthcare services, as well as reductions in health coverage and restricting access to care (direct). We distinguish those impacts of economic crises from those of austerity as a response to it. Where possible, data from across Europe will be drawn upon, as well as more extensive analysis of the UK's austerity measures performed by the authors of this review. PMID- 29028246 TI - Validation of Lower Tier Exposure Tools Used for REACH: Comparison of Tools Estimates With Available Exposure Measurements. AB - Background: Tier 1 exposure tools recommended for use under REACH are designed to easily identify situations that may pose a risk to health through conservative exposure predictions. However, no comprehensive evaluation of the performance of the lower tier tools has previously been carried out. The ETEAM project aimed to evaluate several lower tier exposure tools (ECETOC TRA, MEASE, and EMKG-EXPO TOOL) as well as one higher tier tool (STOFFENMANAGER(r)). This paper describes the results of the external validation of tool estimates using measurement data. Methods: Measurement data were collected from a range of providers, both in Europe and United States, together with contextual information. Individual measurement and aggregated measurement data were obtained. The contextual information was coded into the tools to obtain exposure estimates. Results were expressed as percentage of measurements exceeding the tool estimates and presented by exposure category (non-volatile liquid, volatile liquid, metal abrasion, metal processing, and powder handling). We also explored tool performance for different process activities as well as different scenario conditions and exposure levels. Results: In total, results from nearly 4000 measurements were obtained, with the majority for the use of volatile liquids and powder handling. The comparisons of measurement results with tool estimates suggest that the tools are generally conservative. However, the tools were more conservative when estimating exposure from powder handling compared to volatile liquids and other exposure categories. In addition, results suggested that tool performance varies between process activities and scenario conditions. For example, tools were less conservative when estimating exposure during activities involving tabletting, compression, extrusion, pelletisation, granulation (common process activity PROC14) and transfer of substance or mixture (charging and discharging) at non-dedicated facilities (PROC8a; powder handling only). With the exception of STOFFENMANAGER(r) (for estimating exposure during powder handling), the tools were less conservative for scenarios with lower estimated exposure levels. Conclusions: This is the most comprehensive evaluation of the performance of REACH exposure tools carried out to date. The results show that, although generally conservative, the tools may not always achieve the performance specified in the REACH guidance, i.e. using the 75th or 90th percentile of the exposure distribution for the risk characterisation. Ongoing development, adjustment, and recalibration of the tools with new measurement data are essential to ensure adequate characterisation and control of worker exposure to hazardous substances. PMID- 29028247 TI - Atopy as a Modifier of the Relationships Between Endotoxin Exposure and Symptoms Among Laboratory Animal Workers. AB - Background: Exposure to endotoxin is known to trigger airway inflammation and symptoms, and atopy may modify the relationship between endotoxin exposure and symptom development. Objective: To test the a priori hypothesis that atopic status modifies the relationship between endotoxin exposure and respiratory symptom development. Methods: A prospective study of laboratory workers at The Jackson Laboratories was conducted. Allergy skin testing was performed and population demographic and clinical information was obtained at baseline. Personal exposure assessments for airborne endotoxin and surveys of self-reported symptoms were performed every 6 months. Cox proportional hazards models were used to examine the relationship between endotoxin exposure and development of mouse associated symptoms and multivariate regression was used to test for interaction. Results: Overall, 16 (9%) of 174 worker-participants developed mouse-associated rhinoconjunctivitis symptoms by 24 months and 8 (5%) developed mouse-associated lower respiratory symptoms by 24 months. Among workers with endotoxin exposure above the median (>=2.4 EU m-3), 5 (6% of 80) atopics reported mouse-associated rhinoconjunctivitis symptoms at 24 months as compared to 3 (3% of 94) non atopics. Among workers below the median endotoxin exposure (<2.4 EU m-3), 1 (1% of 80) atopic reported mouse-associated rhinoconjunctivitis symptoms at 24 months as compared to 7 (7% of 94) non-atopics. For the combination of symptoms, the adjusted hazard ratio was 6.8 (95% confidence interval: 0.7-67.2) for atopics and 0.07 (95% confidence interval: 0.01-0.5) for non-atopics. Conclusion: In this occupational cohort, atopic workers may be more susceptible to, and non-atopic workers protected from, endotoxin-associated upper and lower respiratory symptoms. PMID- 29028248 TI - Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys. AB - Objectives: The objective was to quantify the blue-light hazard from gas metal arc welding (GMAW) of aluminum alloys. The exposure level is expected to depend on the welding conditions. Therefore, it is important to identify the blue-light hazard under various welding conditions. Methods: We experimentally conducted GMAW of aluminum alloys under various welding conditions and measured the spectral radiance of the arcs. The effective blue-light radiance, which the American Conference of Governmental Industrial Hygienists has defined to quantify the exposure level of blue light, was calculated from the measured spectral radiance. The maximum acceptable exposure duration per 10000 s for this effective blue-light radiance was calculated. Results: The effective blue-light radiance measured in this study was in the range of 2.9-20.0 W cm-2.sr. The corresponding maximum acceptable exposure duration per 10000 s was only 5.0-34 s, so it is hazardous to view the welding arc. The effective blue-light radiance was higher at higher welding currents than at lower welding currents, when pulsed welding currents were used rather than steady welding currents, and when magnesium was included in the welding materials. Conclusions: It is very hazardous to view the arcs in GMAW of aluminum alloys. Welders and their helpers should use appropriate eye protection in arc-welding operations. They should also avoid direct light exposure when starting an arc-welding operation. PMID- 29028249 TI - A Method to Quantitatively Assess Dermal Exposure to Volatile Organic Compounds. AB - Assessing dermal exposure of workers to noxious chemicals becomes increasingly important in industrial settings. Among various chemicals, volatile organic compounds (VOCs) are widely used in industrialized countries, but still there are no validated methodologies able to accurately quantify skin exposure. In this study, we developed a sensitive methodology based on activated charcoal cloth (ACC) to quantitatively assess skin exposure to 181 VOCs. The majority of the VOCs (156) showed a constant desorption efficiency (DE) of ~100% over the studied concentration range. Seven VOCs showed a concentration dependency for the DEs, which we described by a Dubinin-Raduskevich desorption isotherm. For 18 compounds, the DEs were situated below 80% but showed to be constant over the concentration range. All tested VOCs showed a good storage stability on ACC, especially at -80 degrees C storage. Only for n-pentane there was a decrease of ~40% when it was stored for a month. In a controlled environment test, ACC has shown to reflect well the increasing concentrations of VOCs in the air with a high linearity (R2 >= 0.812, except for gamma-butyrolactone where R2 = 0.570). In this study, we show that ACC is a suitable sampling material for quantitatively assessing dermal exposure to 181 VOCs in terms of sensitivity and DE. This method will allow more studies that are detailed on dermal exposure, which will lead to a better assessment of skin exposure in occupational settings. PMID- 29028250 TI - Comprehensive Biological Monitoring to Assess Isocyanates and Solvents Exposure in the NSW Australia Motor Vehicle Repair Industry. AB - Urethane products that contain isocyanates are extensively used in the motor vehicle repair (MVR) industry and other industries such as furniture and cabinet making as two-pack spray paints, clears, and adhesives. Attention has recently been refocussed on isocyanate-containing chemicals, particularly in paints. The spray painters in the MVR industry had a propensity to develop industrial asthma at a rate 80 times higher than the general public, which was previously reported in the UK. To track workers exposure to isocyanates, urine samples were collected from 196 spray painters who worked mainly in 78 MVR shops across 54 New South Wales (NSW) towns and suburbs. The biological monitoring also covered exposure testing to a wide variety of solvents including aromatic hydrocarbons, ketones, and alcohols. The main finding of the study was that 2.6% of the spray painters surveyed in the MVR industry in NSW that handled isocyanate-containing paints showed exposure to isocyanates; with 1.0% being moderately exposed, which is more than twice the current UK's Health and Safety Executive (HSE) Biological Monitoring Guidance Value (BMGV) of 1 umol mol-1 creatinine. Potential exposures to toluene (a solvent often found in paint thinners) was monitored via hippuric acid (HA) urine levels and showed 2.6% of the spray painters surveyed to be over the US' American Conference of Government Industrial Hygienists (ACGIH) Biological Exposure Index (BEI) of 1010 mmol/mole creatinine for HA. The other solvents or their metabolites were all below their respective BEI; these comprised benzene, xylene, ethyl benzene, methyl ethyl ketone, acetone, methanol, and ethanol. These findings indicate that isocyanates and certain solvents exposure were occurring in the NSW Australia vehicle repair industry, albeit at lower levels than previous occupational biological monitoring studies that showed higher exposure levels, particularly for isocyanates. One reason for this could be the increasing use of water-based paints in the industry, resulting in lower than expected isocyanate and solvent metabolite levels detected in this more recent study. Further, the completion of sample context form, along with spot urine collection in relation to the isocyanate exposure monitoring work details will provide crucial information to interpret the biological analysis results. The development of new biomarkers of isocyanate oligomer-derived triamines should be incorporated in the assessment of isocyanate exposure in the MVR industry to provide a more complete picture of isocyanate exposure. PMID- 29028251 TI - Monitoring Surface Contamination by Antineoplastic Drugs in Italian Hospitals: Performance-Based Hygienic Guidance Values (HGVs) Project. AB - Antineoplastic drugs (ADs) will continue to represent a potential risk for personnel involved in the handling of these compounds and great concerns have been raised by the presence of ADs in many surveyed workplaces. Eight hospitals were investigated by means of wipe sampling for surface residue determination. Each wipe sample was tested for five ADs considered suitable exposure markers. Cyclophosphamide (CP), gemcitabine (GEM), 5-fluorouracil (5-FU), platinum containing drugs (Pt), and epi-doxorubicin (EPI) contamination levels were measured in 85 per cent of the studied pharmacies and 93 per cent of outpatient care units (OpCUs). This study showed that 83 out of 349 samples were positive in Pharmacies, this proportion being statistically significant (chi2 = 42.9, p < 0.001). The positive samples provided evidence of at least one substance with levels greater than the limit of detection (LOD). The two most frequently detected substances were Pt (42%) and CP (30%). These accounted for 72 per cent of the whole dataset, followed by 5-FU and GEM. Based on the 90th percentile of wipe sampling data distribution, we suggest hygienic guidance values (HGVs) of 3.6, 1.0, 0.9, and 0.5 ng cm-2 for CP, 5-FU, GEM and Pt, respectively, as the best target levels of the surface contamination load in Italian pharmacies. The approach of proposing guidance values at the 90th percentile of results obtained from workplaces with good hygiene practice was found to be a simple and practical way of controlling occupational exposure. HGVs were challenged in this study as technical threshold limits to benchmark AD residual surface contamination at workplaces. PMID- 29028252 TI - Surveillance and Analysis of Occupational Carbon Monoxide Poisoning in the Paris Region. AB - Objectives: Acute carbon monoxide poisoning is common and often severe. Domestic causes have been extensively documented, while occupational exposures have been reported less frequently. We analyse occupational carbon monoxide poisonings from the available data of the carbon monoxide poisoning surveillance network for Paris and its region, and identify predictive factors of severity for occupational poisoning in order to identify priority prevention actions. Methods: We retrospectively reviewed all events of acute accidental carbon monoxide exposures which occurred in the Paris region, at the work place, and notified to the surveillance network from 1 January 2005 to 31 December 2011. Results: Over the 7-year study period, 362 exposed workers were identified, representing 8.15% of all cases of carbon monoxide exposures. The largest number of events occurred in the building sector and most commonly affected occupations were craft and related trades workers. The most common sources of exposure were internal combustion engine equipment that was involved in almost half of cases. Minor severity was observed in 86% of cases, and 13% were moderate or more. We identify that the use of internal combustion engine equipment was significantly associated with increased severity. Conclusions: Occupational carbon monoxide poisoning is reported less frequently than domestic poisoning and has different and more numerous causes. It can be potentially severe, especially when it is caused by internal combustion engine equipment. Information about risks, compliance with instructions and cleaning rules, and establishment of collective and individual protective equipment would significantly reduce the frequency and severity of carbon monoxide poisoning. PMID- 29028253 TI - How Accurate and Reliable Are Exposure Models? PMID- 29028254 TI - Comparing the Advanced REACH Tool's (ART) Estimates With Switzerland's Occupational Exposure Data. AB - The Advanced REACH Tool (ART) is the most sophisticated tool used for evaluating exposure levels under the European Union's Registration, Evaluation, Authorisation and restriction of CHemicals (REACH) regulations. ART provides estimates at different percentiles of exposure and within different confidence intervals (CIs). However, its performance has only been tested on a limited number of exposure data. The present study compares ART's estimates with exposure measurements collected over many years in Switzerland. Measurements from 584 cases of exposure to vapours, mists, powders, and abrasive dusts (wood/stone and metal) were extracted from a Swiss database. The corresponding exposures at the 50th and 90th percentiles were calculated in ART. To characterize the model's performance, the 90% CI of the estimates was considered. ART's performance at the 50th percentile was only found to be insufficiently conservative with regard to exposure to wood/stone dusts, whereas the 90th percentile showed sufficient conservatism for all the types of exposure processed. However, a trend was observed with the residuals, where ART overestimated lower exposures and underestimated higher ones. The median was more precise, however, and the majority (>=60%) of real-world measurements were within a factor of 10 from ART's estimates. We provide recommendations based on the results and suggest further, more comprehensive, investigations. PMID- 29028255 TI - Wipe Sampling Method and Evaluation of Environmental Variables for Assessing Surface Contamination of 10 Antineoplastic Drugs by Liquid Chromatography/Tandem Mass Spectrometry. AB - This paper describes a novel wipe sampling and high-performance liquid chromatography/tandem mass spectrometry (HPLC-MS/MS) method capable of simultaneously detecting 10 antineoplastic drugs (5-fluorouracil, oxaliplatin, methotrexate, vindesine, ifosfamide, cyclophosphamide, vincristine, vinblastine, docetaxel, and paclitaxel). The good overall recoveries and sensitivity values of this method along with the comparatively short run time (8 min) allows for its use in routine monitoring in health care facilities. The long-term behavior of the studied drugs on contaminated surfaces and the effect of surface roughness on drug recoveries were studied to gain insights about how these environmental variables influence the detection, cleaning, and occupational exposure of these drugs. Surfaces with higher roughness parameter (Ra) values (rougher) had the lowest recoveries while those with lower Ra (smoother) presented the highest recoveries. Long-term assessments evidence distinctive drug behaviors with oxaliplatin, vindesine, vincristine, and vinblastine being the less persistent drugs (~20% was recovered after 24 h) and docetaxel and paclitaxel the most persistent drugs with recoveries of 40% and 80% after 1 month. This information indicates the importance of collecting ancillary information about drug usage (throughput, timing, cleaning procedures, etc.) to interpret the results in the context of potential exposure. Finally, the method was successfully applied to evaluate trace surface contamination down to the single picogram per square centimeter in multiple work areas within three local health care centers on Vancouver Island, Canada. PMID- 29028256 TI - A Pilot Study: The UNC Passive Aerosol Sampler in a Working Environment. AB - Objectives: Dust is generally sampled on a filter using air pumps, but passive sampling could be a cost-effective alternative. One promising passive sampler is the University of North Carolina passive aerosol sampler (UNC sampler). The aim of this study is to characterize and compare the UNC sampler's performance with PM10 and PM2.5 impactors in a working environment. Methods: Area sampling was carried out at different mining locations using UNC samplers in parallel with PM2.5 and PM10 impactors. Two different collection surfaces, polycarbonate (PC) and carbon tabs (CT), were employed for the UNC sampling. Sampling was carried out for 4-25 hours. Results: The UNC samplers underestimated the concentrations compared to PM10 and PM2.5 impactor data. At the location with the highest aerosol concentration, the time-averaged mean of PC showed 24% and CT 35% of the impactor result for PM2.5. For PM10, it was 39% with PC and 58% with CT. Sample blank values differed between PC and CT. For PM2.5, PC blank values were ~7 times higher than those of CT, but only 1.8 times higher for PM10. The blank variations were larger for PC than for CT. Conclusions: Particle mass concentrations appear to be underestimated by the UNC sampler compared to impactors, more so for PM2.5 than for PM10. CT may be preferred as a collection surface because the blank values were lower and less variable than for PC. Future validations in the working environment should include respirable dust sampling. PMID- 29028257 TI - Evaluation of Tier One Exposure Assessment Models (ETEAM): Project Overview and Methods. PMID- 29028258 TI - Between-User Reliability of Tier 1 Exposure Assessment Tools Used Under REACH. AB - When applying simple screening (Tier 1) tools to estimate exposure to chemicals in a given exposure situation under the Registration, Evaluation, Authorisation and restriction of CHemicals Regulation 2006 (REACH), users must select from several possible input parameters. Previous studies have suggested that results from exposure assessments using expert judgement and from the use of modelling tools can vary considerably between assessors. This study aimed to investigate the between-user reliability of Tier 1 tools. A remote-completion exercise and in person workshop were used to identify and evaluate tool parameters and factors such as user demographics that may be potentially associated with between-user variability. Participants (N = 146) generated dermal and inhalation exposure estimates (N = 4066) from specified workplace descriptions ('exposure situations') and Tier 1 tool combinations (N = 20). Interactions between users, tools, and situations were investigated and described. Systematic variation associated with individual users was minor compared with random between-user variation. Although variation was observed between choices made for the majority of input parameters, differing choices of Process Category ('PROC') code/activity descriptor and dustiness level impacted most on the resultant exposure estimates. Exposure estimates ranging over several orders of magnitude were generated for the same exposure situation by different tool users. Such unpredictable between user variation will reduce consistency within REACH processes and could result in under-estimation or overestimation of exposure, risking worker ill-health or the implementation of unnecessary risk controls, respectively. Implementation of additional support and quality control systems for all tool users is needed to reduce between-assessor variation and so ensure both the protection of worker health and avoidance of unnecessary business risk management expenditure. PMID- 29028259 TI - Stem Cell Transplantation for Frailty. PMID- 29028260 TI - pulseR: Versatile computational analysis of RNA turnover from metabolic labeling experiments. AB - Motivation: Metabolic labelling of RNA is a well-established and powerful method to estimate RNA synthesis and decay rates. The pulseR R package simplifies the analysis of RNA-seq count data that emerge from corresponding pulse-chase experiments. Results: The pulseR package provides a flexible interface and readily accommodates numerous different experimental designs. To our knowledge, it is the first publicly available software solution that models count data with the more appropriate negative-binomial model. Moreover, pulseR handles labelled and unlabelled spike-in sets in its workflow and accounts for potential labeling biases (e.g. number of uridine residues). Availability and implementation: The pulseR package is freely available at https://github.com/dieterich-lab/pulseR under the GPLv3.0 licence. Contact: a.uvarovskii@uni-heidelberg.de or christoph.dieterich@uni-heidelberg.de. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028261 TI - Panoptes: web-based exploration of large scale genome variation data. AB - Motivation: The size and complexity of modern large-scale genome variation studies demand novel approaches for exploring and sharing the data. In order to unlock the potential of these data for a broad audience of scientists with various areas of expertise, a unified exploration framework is required that is accessible, coherent and user-friendly. Results: Panoptes is an open-source software framework for collaborative visual exploration of large-scale genome variation data and associated metadata in a web browser. It relies on technology choices that allow it to operate in near real-time on very large datasets. It can be used to browse rich, hybrid content in a coherent way, and offers interactive visual analytics approaches to assist the exploration. We illustrate its application using genome variation data of Anopheles gambiae, Plasmodium falciparum and Plasmodium vivax. Availability and implementation: Freely available at https://github.com/cggh/panoptes, under the GNU Affero General Public License. Contact: paul.vauterin@gmail.com. PMID- 29028262 TI - TSIS: an R package to infer alternative splicing isoform switches for time-series data. AB - Summary: An alternative splicing isoform switch is where a pair of transcript isoforms reverse their relative expression abundances in response to external or internal stimuli. Although computational methods are available to study differential alternative splicing, few tools for detection of isoform switches exist and these are based on pairwise comparisons. Here, we provide the TSIS R package, which is the first tool for detecting significant transcript isoform switches in time-series data. The main steps of TSIS are to search for the isoform switch points in the time-series, characterize the switches and filter the results with user input parameters. All the functions are integrated into a Shiny App for ease of implementation of the analysis. Availability and implementation: The TSIS package is available on GitHub: https://github.com/wyguo/TSIS. Contact: runxuan.zhang@hutton.ac.uk. PMID- 29028263 TI - Epigenomic annotation-based interpretation of genomic data: from enrichment analysis to machine learning. AB - Motivation: One of the goals of functional genomics is to understand the regulatory implications of experimentally obtained genomic regions of interest (ROIs). Most sequencing technologies now generate ROIs distributed across the whole genome. The interpretation of these genome-wide ROIs represents a challenge as the majority of them lie outside of functionally well-defined protein coding regions. Recent efforts by the members of the International Human Epigenome Consortium have generated volumes of functional/regulatory data (reference epigenomic datasets), effectively annotating the genome with epigenomic properties. Consequently, a wide variety of computational tools has been developed utilizing these epigenomic datasets for the interpretation of genomic data. Results: The purpose of this review is to provide a structured overview of practical solutions for the interpretation of ROIs with the help of epigenomic data. Starting with epigenomic enrichment analysis, we discuss leading tools and machine learning methods utilizing epigenomic and 3D genome structure data. The hierarchy of tools and methods reviewed here presents a practical guide for the interpretation of genome-wide ROIs within an epigenomic context. Contact: mikhail.dozmorov@vcuhealth.org. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028264 TI - TeachEnG: a Teaching Engine for Genomics. AB - Motivation: Bioinformatics is a rapidly growing field that has emerged from the synergy of computer science, statistics and biology. Given the interdisciplinary nature of bioinformatics, many students from diverse fields struggle with grasping bioinformatic concepts only from classroom lectures. Interactive tools for helping students reinforce their learning would be thus desirable. Here, we present an interactive online educational tool called TeachEnG (acronym for Teaching Engine for Genomics) for reinforcing key concepts in sequence alignment and phylogenetic tree reconstruction. Our instructional games allow students to align sequences by hand, fill out the dynamic programming matrix in the Needleman Wunsch global sequence alignment algorithm, and reconstruct phylogenetic trees via the maximum parsimony, Unweighted Pair Group Method with Arithmetic mean (UPGMA) and Neighbor-Joining algorithms. With an easily accessible interface and instant visual feedback, TeachEnG will help promote active learning in bioinformatics. Availability and implementation: TeachEnG is freely available at http://teacheng.illinois.edu. The source code is available from https://github.com/KnowEnG/TeachEnG under the Artistic License 2.0. It is written in JavaScript and compatible with Firefox, Safari, Chrome and Microsoft Edge. Contact: songj@illinois.edu. PMID- 29028265 TI - StereoGene: rapid estimation of genome-wide correlation of continuous or interval feature data. AB - Motivation: Genomics features with similar genome-wide distributions are generally hypothesized to be functionally related, for example, colocalization of histones and transcription start sites indicate chromatin regulation of transcription factor activity. Therefore, statistical algorithms to perform spatial, genome-wide correlation among genomic features are required. Results: Here, we propose a method, StereoGene, that rapidly estimates genome-wide correlation among pairs of genomic features. These features may represent high throughput data mapped to reference genome or sets of genomic annotations in that reference genome. StereoGene enables correlation of continuous data directly, avoiding the data binarization and subsequent data loss. Correlations are computed among neighboring genomic positions using kernel correlation. Representing the correlation as a function of the genome position, StereoGene outputs the local correlation track as part of the analysis. StereoGene also accounts for confounders such as input DNA by partial correlation. We apply our method to numerous comparisons of ChIP-Seq datasets from the Human Epigenome Atlas and FANTOM CAGE to demonstrate its wide applicability. We observe the changes in the correlation between epigenomic features across developmental trajectories of several tissue types consistent with known biology and find a novel spatial correlation of CAGE clusters with donor splice sites and with poly(A) sites. These analyses provide examples for the broad applicability of StereoGene for regulatory genomics. Availability and implementation: The StereoGene C ++ source code, program documentation, Galaxy integration scripts and examples are available from the project homepage http://stereogene.bioinf.fbb.msu.ru/. Contact: favorov@sensi.org. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028266 TI - CircPro: an integrated tool for the identification of circRNAs with protein coding potential. AB - Summary: Circular RNAs (circRNAs), a novel class of endogenous RNAs, are widespread in eukaryotic cells. Emerging roles in diverse biological processes suggest that circRNA is a promising key player in RNA world. Most circRNAs are generated through back-splicing of pre-mRNAs, forming a covalently closed loop structure with no 5' caps or 3' polyadenylated tails. In addition, most circRNAs were not associated with translating ribosomes, therefore, circRNAs were deemed to be noncoding. However, the latest research findings revealed that some circRNAs could generate proteins in vivo, which expands the landscape of transcriptome and proteome. To gain insights into the new area of circRNA translation, we introduce an integrated tool capable of detecting circRNAs with protein-coding potential from high-throughput sequencing data. Availability and implementation: CircPro is available at http://bis.zju.edu.cn/CircPro. Contact: mchen@zju.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028267 TI - VariantTools: an extensible framework for developing and testing variant callers. AB - Motivation: Variant calling is the complex task of separating real polymorphisms from errors. The appropriate strategy will depend on characteristics of the sample, the sequencing methodology and on the questions of interest. Results: We present VariantTools, an extensible framework for developing and testing variant callers. There are facilities for reproducibly tallying, filtering, flagging and annotating variants. The tools are extensible, modular and flexible, so that they are tunable to particular use cases, and they interoperate with existing analysis software so that they can be embedded in established work flows. Availability and implementation: VariantTools is available from http://www.bioconductor.org/. Contact: michafla@gene.com. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028268 TI - Relationship between the Mediterranean dietary pattern and musculoskeletal health in children, adolescents, and adults: systematic review and evidence map. AB - Context: An understanding of the modifiable effects of diet on bone and skeletal muscle mass and strength over the life course will help inform strategies to reduce age-related fracture risk. The Mediterranean diet is rich in nutrients that may be important for optimal musculoskeletal health. The aim of this systematic review was to investigate the relationship between a Mediterranean diet and musculoskeletal outcomes (fracture, bone density, osteoporosis, sarcopenia) in any age group. Ten electronic databases were searched. Randomized controlled trials and prospective cohort studies that investigated a traditional Mediterranean diet, published in any language, were eligible. Studies using other designs or other definitions of the Mediterranean diet were collated separately in an evidence map. Details on study design, methods, population, dietary intervention or exposure, length of follow-up, and effect on or association with musculoskeletal outcomes were extracted. The search yielded 1738 references. Data from eligible randomized controlled trials (n = 0) and prospective cohort studies (n = 3) were synthesized narratively by outcome for the systematic review. Two of these studies reported on hip fracture incidence, but results were contradictory. A third study found no association between the Mediterranean diet and sarcopenia incidence. Overall, the systematic review and evidence map demonstrate a lack of research to understand the relationship between the Mediterranean diet and musculoskeletal health in all ages. PROSPERO registration number IDCRD42016037038. PMID- 29028269 TI - Acceptance and adoption of biofortified crops in low- and middle-income countries: a systematic review. AB - Context: Biofortification of staple crops is a promising strategy for increasing the nutrient density of diets in order to improve human health. The willingness of consumers and producers to accept new crop varieties will determine whether biofortification can be successfully implemented. This review assessed sensory acceptance and adoption of biofortified crops and the determining factors for acceptance and adoption among consumers and producers in low- and middle-income countries. PubMed, Scopus, and Web of Science were searched for published reports. Unpublished studies were identified using an internet search. From a total of 1669 records found, 72 primary human research studies published in English or Spanish met the criteria for inclusion. : Data were extracted from each identified study using a standardized form. Sensory acceptability (n = 40) was the most common topic of the studies, followed by determinants of acceptance (n = 25) and adoption (n = 21). Of crops included in the studies, sweet potato and maize were the most studied, whereas rice and pearl-millet were the least investigated. Overall, sensory acceptance was good, and availability and information on health benefits of the crops were the most important determinants of acceptance and adoption. : Changes to the sensory qualities of a crop, including changes in color, did not act as an obstacle to acceptance of biofortified crops. Future studies should look at acceptance of biofortified crops after they have been disseminated and introduced on a wide-scale. PMID- 29028271 TI - Influence of adipose tissue mass on bone mass in an overweight or obese population: systematic review and meta-analysis. AB - Context: The scientific literature shows conflicting evidence about the relationship between adiposity and bone mass in overweight and obese populations. The aim of this review was to quantify the correlation between adipose mass (absolute and relative) and bone mineral density (BMD) in overweight and obese populations. Three databases were searched electronically. In addition, reference lists of relevant articles were screened. A total of 16 studies, comprising 2587 participants and 75 correlation coefficients were selected for inclusion in the review. Data were extracted from each study using a standardized form. Multilevel modeling indicated opposing relationships between BMD and adiposity: absolute adiposity correlated positively, and relative adiposity negatively, with BMD. Sex and age were the primary moderators of these relationships. Strong evidence supported a negative relationship between relative adipose mass and BMD in men (R = -0.37; 95%CI, -0.57 to -0.12) and in those aged less than 25 years (R = -0.28; 95%CI, -0.45 to -0.08). To prevent bone loss in overweight and obese populations, nutrition- and exercise-based interventions that focus on a controlled reduction of adipose mass with concomitant preservation of lean mass are recommended. : PROSPERO no. CRD42015024313. PMID- 29028270 TI - Critical review of the emerging research evidence on agricultural biodiversity, diet diversity, and nutritional status in low- and middle-income countries. AB - The declining diversity of agricultural production and food supplies worldwide may have important implications for global diets. The primary objective of this review is to assess the nature and magnitude of the associations of agricultural biodiversity with diet quality and anthropometric outcomes in low- and middle income countries. A comprehensive review of 5 databases using a priori exclusion criteria and application of a systematic, qualitative analysis to the findings of identified studies revealed that agricultural biodiversity has a small but consistent association with more diverse household- and individual-level diets, although the magnitude of this association varies with the extent of existing diversification of farms. Greater on-farm crop species richness is also associated with small, positive increments in young child linear stature. Agricultural diversification may contribute to diversified diets through both subsistence- and income-generating pathways and may be an important strategy for improving diets and nutrition outcomes in low- and middle-income countries. Six research priorities for future studies of the influence of agricultural biodiversity on nutrition outcomes are identified based on gaps in the research literature. PMID- 29028272 TI - Dietary carbohydrates, components of energy balance, and associated health outcomes. AB - The role of dietary carbohydrates in the development of obesity and associated metabolic dysfunction has recently been questioned. Within the last decade, the Scientific Advisory Committee on Nutrition carried out a comprehensive evaluation of the role of dietary carbohydrates in human health. The current review aims to complement and extend this report by providing specific consideration of the effects of the component parts of energy balance, their interactions, and their culmination on energy storage and health. PubMed was searched for all published trials that had a minimum follow-up period of 3 months and were designed to manipulate dietary carbohydrate intake, irrespective of resultant differences in absolute carbohydrate dose (grams per day). Dietary carbohydrate manipulation has little effect on the individual components of energy balance that have been assessed. However, the role of dietary carbohydrates in influencing physical activity has yet to be assessed using gold-standard measurement tools. Moreover, adherence to a diet of modified carbohydrate content has not been found to result in a consistent pattern of changes in weight or indirect measures of metabolic health. However, certain markers of cardiovascular disease risk (ie, blood triglycerides and high-density lipoprotein cholesterol) may respond positively to a reduction in dietary carbohydrates. PMID- 29028273 TI - Corrigendum. PMID- 29028274 TI - THE 2017 13TH ANNUAL DAVID W. KENNEDY, MD, LECTURE The evolution of outcomes in sinus surgery for chronic rhinosinusitis: past, present, and future. AB - This is an edited transcript from the 2017 13th Annual David W. Kennedy, MD, Lecture, presented to the American Rhinologic Society during the 63rd Annual Meeting. PMID- 29028275 TI - Exposure reductions associated with introduction of solar lamps to kerosene lamp using households in Busia County, Kenya. AB - Solar lamps are a clean and potentially cost-effective alternative to polluting kerosene lamps used by millions of families in developing countries. By how much solar lamps actually reduce exposure to pollutants, however, has not been examined. Twenty households using mainly kerosene for lighting were enrolled through a secondary school in Busia County, Kenya. Personal PM2.5 and CO concentrations were measured on a school pupil and an adult in each household, before and after provision of 3 solar lamps. PM2.5 concentrations were measured in main living areas, pupils' bedrooms, and kitchens. Usage sensors measured use of kerosene and solar lighting devices. Ninety percent of baseline kerosene lamp use was displaced at 1-month follow-up, corresponding to average PM2.5 reductions of 61% and 79% in main living areas and pupils' bedrooms, respectively. Average 48-h exposure to PM2.5 fell from 210 to 104 MUg/m3 (-50%) among adults, and from 132 to 35 MUg/m3 (-73%) among pupils. Solar lamps displaced most kerosene lamp use in at least the short term. If sustained, this could mitigate health impacts of household air pollution in some contexts. Achieving safe levels of exposure for all family members would likely require also addressing use of solid-fuel stoves. PMID- 29028276 TI - Enhancing antibiotic stewardship by tackling "spurious" penicillin allergy. AB - Approximately 90-99% of patients with a label of penicillin allergy (PenA) are not allergic when comprehensively investigated. An inaccurate label of PenA has major public health implications-longer hospital stay, more frequent hospital admissions, greater use of fluoroquinolones, glycopeptides, cephalosporins and other expensive antibiotics resulting in significantly higher costs to the health service and predisposing to Clostridium difficile, methicillin-resistant Staphylococcus aureus infections and vancomycin-resistant enterococcus. We describe lessons learnt from recent studies regarding possible reasons contributing to an inaccurate label of PenA as well as propose a concerted multidisciplinary approach to address this important public health problem. Given the unmet need for allergy services in the UK and several other countries and knowledge gaps regarding PenA amongst healthcare professionals, we describe the potential role for a computerized clinical decision support system to enable non specialists rapidly identify and de-label "low-risk" hospitalized patients with a label of PenA thereby obviating the need for allergy tests. This approach however needs rigorous evaluation for feasibility, safety, patient and physician acceptability, cost-effectiveness and its compatibility with information technology systems currently employed in the health service. PMID- 29028277 TI - Associations between daily cooking duration and the prevalence of diabetes and prediabetes in a middle-aged and elderly Chinese population: A cross-sectional study. AB - Experimental and epidemiological studies indicated that ambient air pollution was positively associated with diabetes. Few studies investigated the associations between household air pollution, for example, daily cooking duration and diabetes or prediabetes. We conducted a cross-sectional study to investigate the associations of daily cooking duration with the prevalence of diabetes and prediabetes among a middle-aged and elderly population. A total of 26 089 individuals (11 250 males and 14 839 females) derived from the Dongfeng-Tongji cohort study were included. Daily cooking duration was assessed by questionnaire. Diabetes and prediabetes were identified according to the criterion of American Diabetes Association. No significant association was observed between daily cooking duration and the prevalence risk of diabetes (odds ratio[OR] = 0.97, 95% confidence interval[CI]: [0.81-1.16], P for trend = .74); however, longer daily cooking duration was associated with higher prevalence risk of prediabetes (OR = 1.26, 95% CI: 1.07-1.47; P for trend = .003) and hyperglycemia (OR = 1.21, 95% CI: 1.05-1.41; P for trend = .005). Our study suggested that daily cooking duration was not associated with diabetes but with higher prevalence risk of prediabetes/hyperglycemia in a middle-aged and elderly Chinese population. PMID- 29028278 TI - Functional variants in intercellular adhesion molecule-1 and toll-like receptor-4 genes are more frequent in children with febrile urinary tract infection with renal parenchymal involvement. AB - AIM: We studied the functional polymorphisms of intercellular adhesion molecule-1 (ICAM-1) and toll-like receptor-4 (TLR-4) genes and risk of acute pyelonephritis (APN) in children attending Assiut University Children's Hospitals, Egypt, from 2011 to 2015. METHODS: Urinary tract infections (UTIs) were diagnosed in 380 children: 98 had APN and 282 had lower UTIs. Four single-nucleotide polymorphisms in ICAM-1 and TLR-4 genes were genotyped in all subjects: ICAM-1 rs1799969 Gly241Arg, ICAM-1 rs5498 Glu469Lys, TLR-4 rs4896791 Thr399Ile and TLR-4 rs4896790 Asp299Gly. RESULTS: Patients with APN were significantly more likely to have AA genotype of the ICAM-1 rs5498 (1462 A/G) polymorphism (p = 0.04) than children with lower UTIs and the TLR-4 Asp299Gly GG genotype (p = 0.002) and G allele (p = 0.006) than healthy controls. The association with the ICAM-1 Glu469Lys (1462A/G) was less evident. The GG genotype was associated with a modest relative risk of 1.4 (p = 0.1) of developing APN, but was not an independent odds ratio, at 1.2 (p = 0.48). CONCLUSION: Functional variants in ICAM-1 and TLR-4 genes were increasingly common in children with febrile UTIs with renal parenchymal involvement, but the ICAM-1 Glu469Lys (1462A/G) association was less evident. TLR4 Asp299Gly might independently increase renal parenchymal infection rather than renal scarring. PMID- 29028279 TI - Liver elastography malignancy prediction score for noninvasive characterization of focal liver lesions. AB - BACKGROUND & AIMS: To analyse elastographic characteristics of focal liver lesions (FLL)s and diagnostic performance of real-time two-dimensional shear-wave elastography (RT-2D-SWE) in order to differentiate benign and malignant FLLs. METHODS: Consecutive patients diagnosed with FLL by abdominal ultrasound (US) underwent RT-2D-SWE of FLL and non-infiltrated liver by intercostal approach over the right liver lobe. The nature of FLL was determined by diagnostic work-up, including at least one contrast-enhanced imaging modality (MDCT/MRI), check-up of target organs when metastatic disease was suspected and FLL biopsy in inconclusive cases. RESULTS: We analysed 196 patients (median age 60 [range 50 68], 50.5% males) with 259 FLLs (57 hepatocellular carcinomas, 17 cholangiocarcinomas, 94 metastases, 71 haemangiomas, 20 focal nodular hyperplasia) of which 70 (27%) were in cirrhotic liver. Malignant lesions were stiffer (P < .001) with higher variability in intralesional stiffness (P = .001). The best performing cut-off of lesion stiffness was 22.3 kPa (sensitivity 83%; specificity 86%; positive predictive value [PPV] 91.5%; negative predictive value [NPV] 73%) for malignancy. Lesion stiffness <14 kPa had NPV of 96%, while values >32.5 kPa had PPV of 96% for malignancy. Lesion stiffness, lesion/liver stiffness ratio and lesion stiffness variability significantly predicted malignancy in stepwise logistic regression (P < .05), and were used to construct a new Liver Elastography Malignancy Prediction (LEMP) score with accuracy of 96.1% in validation cohort (online calculator available at http://bit.do/lemps). CONCLUSION: The comprehensive approach demonstrated in this study enables correct differentiation of benign and malignant FLL in 96% of patients by using RT-2D SWE. PMID- 29028280 TI - Temporal changes in soil C-N-P stoichiometry over the past 60 years across subtropical China. AB - Controlled experiments have shown that global changes decouple the biogeochemical cycles of carbon (C), nitrogen (N), and phosphorus (P), resulting in shifting stoichiometry that lies at the core of ecosystem functioning. However, the response of soil stoichiometry to global changes in natural ecosystems with different soil depths, vegetation types, and climate gradients remains poorly understood. Based on 2,736 observations along soil profiles of 0-150 cm depth from 1955 to 2016, we evaluated the temporal changes in soil C-N-P stoichiometry across subtropical China, where soils are P-impoverished, with diverse vegetation, soil, and parent material types and a wide range of climate gradients. We found a significant overall increase in soil total C concentration and a decrease in soil total P concentration, resulting in increasing soil C:P and N:P ratios during the past 60 years across all soil depths. Although average soil N concentration did not change, soil C:N increased in topsoil while decreasing in deeper soil. The temporal trends in soil C-N-P stoichiometry differed among vegetation, soil, parent material types, and spatial climate variations, with significantly increased C:P and N:P ratios for evergreen broadleaf forest and highly weathered Ultisols, and more pronounced temporal changes in soil C:N, N:P, and C:P ratios at low elevations. Our sensitivity analysis suggests that the temporal changes in soil stoichiometry resulted from elevated N deposition, rising atmospheric CO2 concentration and regional warming. Our findings revealed that the responses of soil C-N-P and stoichiometry to long term global changes have occurred across the whole soil depth in subtropical China and the magnitudes of the changes in soil stoichiometry are dependent on vegetation types, soil types, and spatial climate variations. PMID- 29028281 TI - Usefulness of the index of NASH - ION for the diagnosis of steatohepatitis in patients with non-alcoholic fatty liver: An external validation study. AB - BACKGROUND & AIMS: The non-invasive identification of steatohepatitis (NASH) in patients with Non-Alcoholic Fatty Liver Disease is an unmet need in clinical practice. Index of NASH (ION) is a new tool for the prediction of NASH. We aimed to externally validate ION and to compare it with CK-18. Since necroinflammation precedes fibrosis, we also tested ION in combination with non-invasive tools for fibrosis. METHODS: We analysed data from 292 Italian patients (169 Southern cohort, and 123 Northern cohort) with an histological diagnosis of NAFLD. The ION, FIB-4 and NFS scores were calculated according to published algorithms. Serum cytokeratin18-Aspartate396 levels and liver stiffness (LS) by Fibroscan were assessed within three months from liver biopsy. RESULTS: The diagnostic accuracy of ION for the identification of NASH was not as satisfactory as reported (area under the ROC curve, AUROC = 0.687 [95% CI = 0.62-0.75]). The proposed cut-off value >=50 showed a poor sensitivity (Se) (28%) and a good specificity (Sp) (92%), with a positive predictive value (PPV) of 91% and a negative predictive value (NPV) of 30%. A new cut-off value >26 improved Se (73%) but decreased Sp (60%) (PPV of 84% and a NPV of 43%). ION performed slightly better in obese NAFLD (AUROC = 0.700). The combination of ION and markers of fibrosis did not improve the identification of advanced liver disease. CONCLUSIONS: ION is not feasible for the non-invasive diagnosis of NASH across different populations of NAFLD patients, mainly because its limited reproducibility in non-obese subjects. PMID- 29028282 TI - Characteristics of Quality Improvement Champions in Nursing Homes: A Systematic Review With Implications for Evidence-Based Practice. AB - BACKGROUND: Improving care quality while reducing cost has always been a focus of nursing homes. Certified nursing assistants comprise the largest proportion of the workforce in nursing homes and have the potential to contribute to the quality of care provided. Quality improvement (QI) initiatives using certified nursing assistants as champions have the potential to improve job satisfaction, which has been associated with care quality. AIMS: To identify the role, use and preparation of champions in a nursing home setting as a way of informing future QI strategies in nursing homes. METHODS: A systematic literature review. Medical Subject Headings and text words for "quality improvement" were combined with those for "champion*" to search Medline, CINAHL, Joanna Briggs Institute, MedLine In-Process, and other Nonindexed Citations. After duplicates were removed, a total of 337 potential articles were identified for further review. After full text review, seven articles from five original studies met inclusion criteria and were included in the synthesis. RESULTS: Various types of QI initiatives and implementation strategies were used together with champions. Champions were identified by study authors as one of the single most effective strategies employed in all studies. The majority of studies described the champion role as that of a leader, who fosters and reinforces changes for improvement. Although all the included studies suggested that implementing nurse or aid champions in their QI initiatives were important facilitators of success, how the champions were selected and trained in their role is either missing or not described in any detail in the studies included in the review. LINKING EVIDENCE TO ACTION: Utilizing certified nursing assistants as QI champions can increase participation in QI projects and has the potential to improve job satisfaction and contribute to improve quality of care and improved patient outcomes in nursing homes. PMID- 29028283 TI - Implementation of buffy-coat-derived pooled platelet concentrates for internal quality control of light transmission aggregometry: a proof of concept study. AB - : Essentials In platelet function testing, standardized internal controls (IQC) are not commercially provided. Platelet function testing was performed daily on aliquoted pooled platelet concentrates. Pooled platelet concentrates showed stability for control purposes from Monday to Friday. Pooled platelet concentrates provide the necessary steadiness to serve as IQC material. SUMMARY: Background Standardized commercially available control material for internal quality control (IQC) of light transmission aggregometry (LTA) is still lacking. Moreover, the availability of normal blood donors to provide fresh platelets is difficult in small laboratories, where 'volunteers' may be in short supply. Objectives To evaluate the implementation of buffy-coat-derived pooled platelet concentrates (PCs) for IQC material for LTA. Methods We used buffy-coat-derived pooled PCs from the blood bank as IQC material for LTA. On each weekend one PC was prepared (> 200 mL) and aliquoted from the original storage bag on a daily basis in four baby bags (40-50 mL), which were delivered from Monday to Friday to our laboratory. The IQC measurements of at least 85 work-weeks (from Monday to Friday) were evaluated with this new IQC material. LTA was performed on a four channel Chronolog 700 Aggregometer (Chronolog Corporation, Havertown, PA, USA) (agonists: collagen, adenosine diphosphate [ADP], arachidonic acid [AA] and thrombin receptor activator peptide-6 [TRAP-6]). Results The medians of platelet aggregation from IQC measurements with collagen, ADP and AA from Monday to Friday were 68.0-59.5, 3.0-2.0 and 51.0-50.0%, respectively, and the mean of platelet aggregation with TRAP-6 was 71.2-66.4%. Conclusions Buffy-coat-derived pooled PCs serve as a reliable and robust IQC material for LTA measurements and would be beneficial for the whole laboratory procedure and employees' safety. PMID- 29028284 TI - Tissue factor-bearing microparticles and inflammation: a potential mechanism for the development of venous thromboembolism in cancer. AB - Cancer is associated with an increased risk of venous thromboembolism (VTE); the exact mechanisms for the induction of VTE remain to be fully elucidated, but it is widely acknowledged that tissue factor (TF)-bearing microparticles (TF-MPs) may play a significant role. However, TF-MPs have yet to be accepted as a genuine biomarker for cancer-associated VTE, as the presence of elevated TF-MP levels is not always accompanied by thrombosis; interestingly, in certain cases, particularly in pancreatic cancer, VTE seems to be more likely in the context of acute inflammation. Although several potential mechanisms for the development of VTE in cancer have been postulated, this review explores the homeostatic disruption of TF-MPs, as the main reservoir of bloodborne TF, in the context of cancer and inflammation, and considers the abrogated responses of the activated endothelium and mononuclear phagocyte system in mediating this disruption. PMID- 29028285 TI - Trends in the incidence rate, type and treatment of surgically verified endometriosis - a nationwide cohort study. AB - INTRODUCTION: To study the trends in incidence rate, type and surgical treatment, and patient characteristics of surgically verified endometriosis during 1987 2012. MATERIAL AND METHODS: This is a register-based cohort study. We identified women receiving their first diagnosis of endometriosis in surgery from the Finnish Hospital Discharge Register (FHDR). Quality of the FHDR records was assessed bidirectionally. The age-standardized incidence rates of the first surgically verified endometriosis was assessed by calendar year. RESULTS: The cohort comprises 49 956 women. The quality assessment suggested the FHDR data to be of good quality. The most common diagnosis, ovarian endometriosis (46%), was associated with highest median age 38.5 years (interquartile range 31.0-44.8) and the second most common diagnosis, peritoneal endometriosis (40%), with median age 34.9 years (28.6-41.7). Between 1987 and 2012, a decrease was observed in the median age, from 38.8 (32.3-43.6) to 34.0 (28.9-41.0) years, and in the age standardized incidence rate from 116 [95% confidence interval (CI) 112-121] to 45 (42-48) per 100 000 women. The proportion of hysterectomy as a first surgical treatment decreased from 38 to 19%, whereas that of laparoscopy increased from 42 to 73% when comparing 1987-1995 with 1996-2012. CONCLUSIONS: This nationwide cohort of surgically verified endometriosis showed a decrease in the incidence rate and in the patient age at the time of first diagnosis, even though the proportion of laparoscopy has increased. The number of hysterectomies has decreased. These changes are likely to reflect the evolving diagnostics, increasing awareness of endometriosis, and effective use of medical treatment before surgery. PMID- 29028286 TI - Doppler-guided goal-directed fluid therapy does not affect intestinal cell damage but increases global gastrointestinal perfusion in colorectal surgery: a randomized controlled trial. AB - AIM: Individualized, goal-directed fluid therapy (GDFT), based on Doppler measurements of stroke volume, has been proposed as a treatment strategy in terms of reducing complications, mortality and length of hospital stay in major bowel surgery. We studied the effect of Doppler-guided GDFT on intestinal damage as compared with standard postoperative fluid replacement. METHOD: Patients undergoing elective colorectal resection for malignancy were randomized either to standard intra- and postoperative fluid therapy or to standard fluid therapy with additional Doppler-guided GDFT. The primary outcome was intestinal epithelial cell damage measured by plasma levels of intestinal fatty acid-binding protein (I FABP). Global gastrointestinal perfusion was measured by gastric tonometry, expressed as regional (gastric) minus arterial CO2 -gap (Pr-a CO2 -gap). RESULTS: I-FABP levels were not significantly different between the intervention group and the control group (respectively, 440.8 (251.6) pg/ml and 522.4 (759.9) pg/ml, P = 0.67). Mean areas under the curve (AUCs) of intra-operative Pr-a CO2 -gaps were significantly lower in the intervention group than in the control group (P = 0.01), indicating better global gastrointestinal perfusion in the intervention group. Moreover, the mean intra-operative Pr-a CO2 -gap peak in the intervention group was 0.5 (1.0) kPa, which was significantly lower than the mean peak in the control group, of 1.4 (1.4) kPa (P = 0.03). CONCLUSION: Doppler-guided GDFT during and in the first hours after elective colorectal surgery for malignancy increases global gastrointestinal perfusion, as measured by Pr-a CO2 -gap. PMID- 29028287 TI - A validated model for the 22-item Sino-Nasal Outcome Test subdomain structure in chronic rhinosinusitis. AB - BACKGROUND: Previous studies have identified subdomains of the 22-item Sino-Nasal Outcome Test (SNOT-22), reflecting distinct and largely independent categories of chronic rhinosinusitis (CRS) symptoms. However, no study has validated the subdomain structure of the SNOT-22. This study aims to validate the existence of underlying symptom subdomains of the SNOT-22 using confirmatory factor analysis (CFA) and to develop a subdomain model that practitioners and researchers can use to describe CRS symptomatology. METHODS: A total of 800 patients with CRS were included into this cross-sectional study (400 CRS patients from Boston, MA, and 400 CRS patients from Reno, NV). Their SNOT-22 responses were analyzed using exploratory factor analysis (EFA) to determine the number of symptom subdomains. A CFA was performed to develop a validated measurement model for the underlying SNOT-22 subdomains along with various tests of validity and goodness of fit. RESULTS: EFA demonstrated 4 distinct factors reflecting: sleep, nasal, otologic/facial pain, and emotional symptoms (Cronbach's alpha, >0.7; Bartlett's test of sphericity, p < 0.001; Kaiser-Meyer-Olkin >0.90), independent of geographic locale. The corresponding CFA measurement model demonstrated excellent measures of fit (root mean square error of approximation, <0.06; standardized root mean square residual, <0.08; comparative fit index, >0.95; Tucker-Lewis index, >0.95) and measures of construct validity (heterotrait-monotrait [HTMT] ratio, <0.85; composite reliability, >0.7), again independent of geographic locale. CONCLUSION: The use of the 4-subdomain structure for SNOT-22 (reflecting sleep, nasal, otologic/facial pain, and emotional symptoms of CRS) was validated as the most appropriate to calculate SNOT-22 subdomain scores for patients from different geographic regions using CFA. PMID- 29028288 TI - Hypochlorous acid is antipruritic and anti-inflammatory in a mouse model of atopic dermatitis. AB - BACKGROUND: It has been reported that topical hypochlorous acid (HOCl) formulations lead to relief of itch in human patients with atopic dermatitis; however, the specific antipruritic mechanism of action remains unclear. OBJECTIVE: To confirm itch relief and reduction of lesions in a mouse model of atopic dermatitis and to elucidate possible HOCl's mode of action. METHODS: In this study, the effects of topical administration of HOCl hydrogel (0.05%) on atopic dermatitis-like lesions in NC/Nga mice model as well as in vitro effects of HOCl on dorsal root ganglia neurons and mouse bone marrow-derived dendritic cells (mBMDCs) were investigated. NC/Nga mice were sensitized with house dust mite allergen and treated topically with HOCl hydrogel both preventively and therapeutically against established lesions. Allergen challenge was continued during HOCl hydrogel application. RESULTS: Treatment with HOCl hydrogel prevented the development of lesions and scratching bouts during the whole observation period. When administered after full development of lesions, HOCl reduced lesions and scratching behaviour to a similar extent as a positive control 0.1% betamethasone dipropionate ointment. The reduced inflammatory response by HOCl treatment was demonstrated by reduced secretion of inflammatory cytokines in affected skin tissue from NC/Nga mice. In addition, HOCl significantly reduced IL 12 production in mBMDC. The diminished scratching behaviour was confirmed by impaired response to several pruritogens in dorsal root ganglia neurons excised from NC/Nga mice after termination of the studies. The response to the stimuli was also reduced by pre-incubation of sensory neurons from untreated BALB/c mice with 0.0001% HOCl. CONCLUSIONS AND CLINICAL RELEVANCE: These data indicate a direct reduction in sensory response by HOCl, leading to significantly reduced itch and inflammation in vivo. PMID- 29028289 TI - Early vs delayed closure of loop defunctioning ileostomy in patients undergoing distal colorectal resections: an integrated systematic review and meta-analysis of published randomized controlled trials. AB - AIMS: The objective of this study was to evaluate the surgical outcomes and feasibility of early loop defunctioning ileostomy closure, within 2 weeks of index surgery, in patients undergoing distal colorectal resection. METHODS: A systematic review of the literature on published randomized controlled trials reporting the feasibility and outcomes on early vs delayed closure of loop defunctioning ileostomy in patients undergoing distal colorectal resection using the principles of meta-analysis on RevMan 5.4 statistical software was undertaken. RESULTS: Four randomized, controlled trials on 446 patients evaluating the feasibility and outcomes on early vs delayed closure of loop defunctioning ileostomy in patients undergoing low colorectal resection were analysed. There were 176 patients in the early closure group and 270 patients in the delayed closure group. The risk of anastomotic leak [risk ratio 0.37 (CI: 0.10-1.42), P = 0.15], anastomotic stenosis [risk ratio 4.79 (CI: 0.23-98.47), P = 0.31] and postoperative complications [risk ratio 0.75 (CI: 0.48-1.16), P = 0.19] was similar in both groups. In addition, there was no significant difference between the groups with regard to the duration of operation [standardized mean difference -0.49 (CI: -01.09, -0.12), P = 0.12] and length of hospitalization [standardized mean difference -0.04 (CI: -0.25, -0.18), P = 0.75]. CONCLUSIONS: Early closure of loop defunctioning ileostomy in patients undergoing distal colorectal resection is feasible with comparable outcomes to delayed closure. PMID- 29028291 TI - Reproductive biology of Aechmea bracteata (Sw.) Griseb. (Bromelioideae: Bromeliaceae). AB - Individuals of Aechmea bracteata show inflorescences with red scape bracts and odourless, yellow, tubular diurnal flowers, with closely arranged sexual organs, producing a large amount of fruits. In order to investigate the reproductive system of this species, a suite of characters was assessed: phenology, floral morphology and biology, nectar production dynamics, and fruit and seed production and germination, as a result of controlled pollination crosses. The study was conducted during two flowering seasons in wild populations in Yucatan, Mexico. Results suggest an annual flowering pattern with one flowering peak; flowers were diurnal, showing partial dichogamy (protandry)-herkogamy, anthers and stigma become mature before floral aperture, which could lead to self-pollination, nectar is produced during anthesis, varying in volume and total sugar concentration during the day; fruits and seeds were produced in all experimental crosses (cross-pollination, obligated cross-pollination, assisted and unassisted selfing, geitonogamy and apomixis), as well as high percentage seed germination. Several species of Aechmea are reportedly self-compatible and autogamous, as suggested by results of selfing and non-assisted selfing crosses, but these results are negated by the presence of apomixis, indicating that the species is apomictic. This is the first report of this breeding system for subgenus Aechmea and the sixth for Bromeliaceae. Polyembryony is here suggested for the first time in this genus and family based on the fact that more seeds were recorded that expected based on ovule numbers. Finally, when performing experimental crosses, estimating reproductive success based on number of seeds is a better approach than number of fruits, due to the effect of pseudogamy. PMID- 29028290 TI - Plasminogen activator inhibitor-1 regulates the vascular expression of vitronectin. AB - : Essentials Vitronectin (VN) is produced by smooth muscle cells (SMCs) and promotes neointima formation. We studied the regulation of vascular VN expression by plasminogen activator inhibitor-1 (PAI-1). PAI-1 stimulates VN gene expression in SMCs by binding LDL receptor-related protein 1. Stimulation of VN gene expression may be a mechanism by which PAI-1 controls vascular remodeling. SUMMARY: Background Increased expression of vitronectin (VN) by smooth muscle cells (SMCs) promotes neointima formation after vascular injury, and may contribute to chronic vascular diseases, such as atherosclerosis. However, the molecular regulation of vascular VN expression is poorly defined. Given the overlapping expression profiles and functions of VN and plasminogen activator inhibitor (PAI)-1, we hypothesized that PAI-1 regulates vascular VN expression. Objectives To determine whether PAI-1 regulates VN expression in SMCs and in vivo. Methods The effects of genetic alterations in PAI-1 expression, pharmacologic PAI-1 inhibition and recombinant PAI-1 on SMC VN expression were studied, and vascular VN expression in wild-type (WT) and PAI-1-deficient mice was assessed. Results VN expression was significantly lower in PAI-1-deficient SMCs and significantly increased in PAI-1-overexpressing SMCs. PAI-1 small interfering RNA and pharmacologic PAI-1 inhibition significantly decreased SMC VN expression. Recombinant PAI-1 stimulated VN expression by binding LDL receptor related protein-1 (LRP1), but another LRP1 ligand, alpha2 -macroglobulin, did not. As compared with WT controls, carotid artery VN expression was significantly lower in PAI-1-deficient mice and significantly higher in PAI-1-transgenic mice. In a vein graft (VG) model of intimal hyperplasia, VN expression was significantly attenuated in PAI-1-deficient VGs as compared with WT controls. The plasma VN concentration was significantly decreased in PAI-1-deficient mice versus WT controls at 4 weeks, but not at 5 days or 8 weeks, after surgery. Conclusions PAI-1 stimulates SMC VN expression by binding LRP1, and controls vascular VN expression in vivo. Autocrine regulation of vascular VN expression by PAI-1 may play important roles in vascular homeostasis and pathologic vascular remodeling. PMID- 29028292 TI - Dynamics of soil biogeochemical gas emissions shaped by remolded aggregate sizes and carbon configurations under hydration cycles. AB - Changes in soil hydration status affect microbial community dynamics and shape key biogeochemical processes. Evidence suggests that local anoxic conditions may persist and support anaerobic microbial activity in soil aggregates (or in similar hot spots) long after the bulk soil becomes aerated. To facilitate systematic studies of interactions among environmental factors with biogeochemical emissions of CO2 , N2 O and CH4 from soil aggregates, we remolded silt soil aggregates to different sizes and incorporated carbon at different configurations (core, mixed, no addition). Assemblies of remolded soil aggregates of three sizes (18, 12, and 6 mm) and equal volumetric proportions were embedded in sand columns at four distinct layers. The water table level in each column varied periodically while obtaining measurements of soil GHG emissions for the different aggregate carbon configurations. Experimental results illustrate that methane production required prolonged inundation and highly anoxic conditions for inducing measurable fluxes. The onset of unsaturated conditions (lowering water table) resulted in a decrease in CH4 emissions while temporarily increasing N2 O fluxes. Interestingly, N2 O fluxes were about 80% higher form aggregates with carbon placement in center (anoxic) core compared to mixed carbon within aggregates. The fluxes of CO2 were comparable for both scenarios of carbon sources. These experimental results highlight the importance of hydration dynamics in activating different GHG production and affecting various transport mechanisms about 80% of total methane emissions during lowering water table level are attributed to physical storage (rather than production), whereas CO2 emissions (~80%) are attributed to biological activity. A biophysical model for microbial activity within soil aggregates and profiles provides a means for results interpretation and prediction of trends within natural soils under a wide range of conditions. PMID- 29028293 TI - A large case series on surgical outcomes in congenital factor XIII deficiency patients in Iran. AB - : Essentials Data on surgery in factor XIII (FXIII) deficiency patients are scarce and lack standardized guidelines. Variable dosage of 10-50 U kg-1 was given to FXIII deficiency patients undergoing surgery. Surgical outcomes showed excellent hemostasis with a minimal risk of post-operative complications. Surgery can be performed safely in FXIII deficiency patients following FXIII administration. SUMMARY: Background The lack of accepted standardized surgical guidelines leads to dependence on the treating physicians' and centers' experiences. Aim Our aim is to evaluate the surgical outcomes of a large group of congenital factor XIII deficiency (FXIIID) patients. Methods A case series study was conducted prior to surgery on congenital FXIIID patients in two major referral centers located in Iran from 2010 to 2016. All patients were on prophylaxis using plasma factor XIII concentrate (10 U kg-1 , every 28 days) except for three patients. Single doses of 10 U kg-1 or 30 U kg-1 plasma factor XIII concentrate were given before a minor procedure and circumcision, respectively. Two doses of plasma factor XIII concentrate, one 30 U kg-1 prior to the procedure and the second dose of 30 U kg-1 on postoperative day 3, were given for major surgery. The dose was 50 U kg-1 both before and after neurosurgical procedures. Results One hundred and sixty-two FXIIID patients underwent minor, major and obstetrical/gynecological surgeries. Median age of the patients was 14 years (ages ranged 15 days to 47 years). The male-to-female ratio was 89/73. Five postoperative complications, two bleeding and three thrombosis, were recorded. Conclusion Our study showed excellent hemostasis in FXIIID patients undergoing surgeries. During the period of these surgeries, we observed only 1.8% postoperative complications. Surgery can be performed safely in FXIIID patients, and our proposed treatment regimens lead to adequate hemostatic coverage with minimal risk, for both minor and major surgeries. PMID- 29028294 TI - Carbon Dots/g-C3N4 Nanoheterostructures-Based Signal-Generation Tags for Photoelectrochemical Immunoassay of Cancer Biomarkers Coupling with Copper Nanoclusters. AB - A class of 0-dimensional/2-dimensional (0D/2D) nanoheterostructures based on carbon quantum dots (CQDs) and graphitic carbon nitride (g-C3N4) was designed as the signal-generation tags for the sensitive photoelectrochemical (PEC) immunoassay of prostate-specific antigen (PSA) coupling with the copper nanoclusters (CuNCs). Combination of CQDs with g-C3N4 promoted the photoexcited electron/hole separation and largely increased the photocurrents of the nanoheterostructures. Initially, a sandwich-type immunoreaction was carried out on monoclonal anti-PSA antibody-coated microplate by using PSA aptamer linked with CuNCs as the tracer. Accompanying the immunocomplex, the carried CuNCs were dissolved under acidic conditions. The as-released copper ions from the CuNCs could be captured onto the CQDs/g-C3N4 nanoheterostructures via the amino-group on the CQD surface as well as the -NHx (x = 1, 2, 3) of g-C3N4 nanosheets. The strong coordination of the Lewis basic sites on the CQDs/g-C3N4 with Cu2+ decreased the photocurrent of the nanoheterostructures. Under optimal conditions, CQDs/g-C3N4 nanoheterostructures displayed good photocurrent responses for the detection of PSA within the dynamic linear range of 0.02-100 ng mL-1 and a limit of detection (LOD) of 5.0 pg mL-1. This method was also evaluated for quantitative screening of human PSA serum specimens by using the referenced electrochemiluminescent enzyme-linked immunoassay (ECL-ELIA) and gave good matched results between two methods. Additionally, this system was beneficial to explore the charge-separation and photoinduced electron transfer mechanism in the photoelectrochemical sensing protocols. PMID- 29028295 TI - Generation and Characterization of a meta-Aryne on Cu and NaCl Surfaces. AB - We describe the generation of a meta-aryne at low temperature (T = 5 K) using atomic manipulation on Cu(111) and on bilayer NaCl on Cu(111). We observe different voltage thresholds for dehalogenation of the precursor and different reaction products depending on the substrate surface. The chemical structure is resolved by atomic force microscopy with CO-terminated tips, revealing the radical positions and confirming a diradical rather than an anti-Bredt olefin structure for this meta-aryne on NaCl. PMID- 29028296 TI - Enhanced Flux and Electrochemical Cleaning of Silicate Scaling on Carbon Nanotube Coated Membrane Distillation Membranes Treating Geothermal Brines. AB - The desalination of inland brackish groundwater offers the opportunity to provide potable drinking water to residents and industrial cooling water to industries located in arid regions. Geothermal brines are used to generate electricity, but often contain high concentrations of dissolved salt. Here, we demonstrate how the residual heat left in spent geothermal brines can be used to drive a membrane distillation (MD) process and recover desalinated water. Porous polypropylene membranes were coated with a carbon nanotube (CNT)/poly(vinyl alcohol) layer, resulting in composite membranes having a binary structure that combines the hydrophobic properties critical for MD with the hydrophilic and conductive properties of the CNTs. We demonstrate that the addition of the CNT layer increases membrane flux due to enhanced heat transport from the bulk feed to the membrane surface, a result of CNT's high thermal transport properties. Furthermore, we show how hydroxide ion generation, driven by water electrolysis on the electrically conducting membrane surface, can be used to efficiently dissolve silicate scaling that developed during the process of desalinating the geothermal brine, negating the need for chemical cleaning. PMID- 29028298 TI - Ultrathin Nanocrystalline Diamond Films with Silicon Vacancy Color Centers via Seeding by 2 nm Detonation Nanodiamonds. AB - Color centers in diamonds have shown excellent potential for applications in quantum information processing, photonics, and biology. Here we report chemical vapor deposition (CVD) growth of nanocrystalline diamond (NCD) films as thin as 5 6 nm with photoluminescence (PL) from silicon-vacancy (SiV) centers at 739 nm. Instead of conventional 4-6 nm detonation nanodiamonds (DNDs), we prepared and employed hydrogenated 2 nm DNDs (zeta potential = +36 mV) to form extremely dense (~1.3 * 1013 cm-2), thin (2 +/- 1 nm), and smooth (RMS roughness < 0.8 nm) nucleation layers on an Si/SiOx substrate, which enabled the CVD growth of such ultrathin NCD films in two different and complementary microwave (MW) CVD systems: (i) focused MW plasma with an ellipsoidal cavity resonator and (ii) pulsed MW plasma with a linear antenna arrangement. Analytical ultracentrifuge, infrared and Raman spectroscopies, atomic force microscopy, and scanning electron microscopy are used for detailed characterization of the 2 nm H-DNDs and the nucleation layer as well as the ultrathin NCD films. We also demonstrate on/off switching of the SiV center PL in the NCD films thinner than 10 nm, which is achieved by changing their surface chemistry. PMID- 29028299 TI - Environmental Engineering of Pd Nanoparticle Catalysts for Catalytic Hydrogenation of CO2 and Bicarbonate. AB - The extraordinary catalytic properties of enzymes are derived not only from their catalytic groups but also the unique properties of the active site. Tuning the microenvironment of synthetic catalysts is expected to enhance their performance if effective strategies can be developed. Interfacially cross-linked reverse micelles were prepared from three different cross-linkable surfactants. Pd nanoparticles were deposited in the core of the micelle for the catalytic hydrogenation of bicarbonate and CO2. The catalytic performance was found to depend heavily on the nature of the headgroup of the surfactant. Quaternary ammonium-based surfactants through ion exchange could bring bicarbonate to the catalytic center, whereas tertiary amine-based surfactants worked particularly well in CO2 hydrogenation, with turnover numbers an order of magnitude higher than that of commercially available Pd/C. The amines were proposed to bring CO2 to the proximity of the catalysts through reversible formation of carbamate, in the nanospace of the hydrophilic core of the cross-linked reverse micelle. In the bicarbonate reduction, additional improvement of the catalysts was achieved through localized sol-gel synthesis that introduced metal oxide near the catalytic metal. PMID- 29028300 TI - Highly Efficient UV Protection of the Biomaterial Wood by A Transparent TiO2/Ce Xerogel. AB - Titanium dioxide is widely used in sunscreens because of its strong ultraviolet (UV) light absorbing capabilities and its resistance to discoloration under UV exposure. However, when deposited as a thin film, the high refractive index of titanium dioxide typically results in whiteness and opacity, which limits the use of titanium dioxide for material surfaces, for which long-term natural appearance is of high relevance. Since the whitish appearance is due to the strong light scattering and reflection on the interface of oxide particles and air, one can increase the transparency of TiO2 coatings by forming a continuous TiO2 layer. The purpose of the present article is 2-fold. First, we show that, in the presence of cerium ammonium nitrate, titanium dioxide can be turned from a white powder into a TiO2/Ce xerogel via a facile bottom-up fabrication process. Second, we demonstrate that the transparent TiO2/Ce xerogel can diminish surface deterioration induced by UV light and preserve the natural appearance of the highly abundant biomaterial wood. Furthermore, EPR spectroscopy revealed that the TiO2/Ce xerogel coating suppresses free radical generation on wood surfaces upon UV irradiation. Our research expands the applicability of the protective effect of titanium dioxide to coatings for natural engineering materials, which will become increasingly important in future bioeconomies. PMID- 29028297 TI - Spectroscopic Imaging at the Nanoscale: Technologies and Recent Applications. PMID- 29028301 TI - Metallic Cobalt@Nitrogen-Doped Carbon Nanocomposites: Carbon-Shell Regulation toward Efficient Bi-Functional Electrocatalysis. AB - To advance hydrogen economy, noble-metal-free electrocatalysts with good efficiency are urgently demanded. They can be developed from metal-organic frameworks (MOFs) with abundant structure-variety, in which a controlled pyrolysis is desired to rationalize nanostructure and maximize catalytic activity. Herein, the efficient regulation is proposed for the first time on the carbon-shell of MOFs-derived Co@NC nanocomposites via varying temperature and flow-rate during pyrolysis, enabling the good accessibility and the electronic optimization of active Co cores. With moderated temperature and flow-rate, the resulting ultrathin carbon-shell, on the one hand, renders Co cores easily accessible to electrolytes and, on the other hand, promotes the electronic penetration to optimize metallic Co active sites. As expected, the optimal Co@NC affords the benchmarking performance of noble-metal-free electrocatalysts in hydrogen evolution and oxygen reduction reactions, featured by the low overpotentials, the striking kinetic metrics, and the outstanding long-term stability. Elucidating the feasibility to design efficient electrocatalysts via controlled MOFs pyrolysis, this work will open up new opportunities for the development of cost-effective materials in the energy field. PMID- 29028302 TI - High Ion-Exchange Capacity Semihomogeneous Cation Exchange Membranes Prepared via a Novel Polymerization and Sulfonation Approach in Porous Polypropylene. AB - Semihomogeneous cation exchange membranes with superior ion exchange capacity (IEC) were synthesized via a novel polymerization and sulfonation approach in porous polypropylene support. The IEC of membranes could reach up to 3 mmol/g because of high mass ratio of functional polymer to membrane support. Especially, theoretical IEC threshold value agreed well with experimental threshold value, indicating that IEC could be specifically designed without carrying out extensive experiments. Also, sulfonate groups were distributed both on membrane surface and across the membranes, which corresponded well with high IEC of the synthesized membranes. In addition, the semifinished membrane showed hydrophobic property because of the formation of polystyrene. In contrast, the final membranes demonstrated super hydrophilic property, indicating the adequate sulfonation of polystyrene. Furthermore, when sulfonation reaction time increased, the conductivity of membranes also showed a tendency to increase, revealing the positive relationship between conductivity and IEC. Finally, the final membranes showed sufficient thermal stability for electrodialysis applications such as water desalination. PMID- 29028304 TI - Enhancing Efficiency of Perovskite Solar Cells via Surface Passivation with Graphene Oxide Interlayer. AB - Perovskite solar cells have been demonstrated as promising low-cost and highly efficient next-generation solar cells. Enhancing VOC by minimization the interfacial recombination kinetics can further improve device performance. In this work, we for the first time reported on surface passivation of perovskite layers with chemical modified graphene oxides, which act as efficient interlayer to reduce interfacial recombination and enhance hole extraction as well. Our modeling points out that the passivation effect mainly comes from the interaction between functional group (4-fluorophenyl) and under-coordinated Pb ions. The resulting perovskite solar cells achieved high efficient power conversion efficiency of 18.75% with enhanced high open circuit VOC of 1.11 V. Ultrafast spectroscopy, photovoltage/photocurrent transient decay, and electronic impedance spectroscopy characterizations reveal the effective passivation effect and the energy loss mechanism. This work sheds light on the importance of interfacial engineering on the surface of perovskite layers and provides possible ways to improve device efficiency. PMID- 29028305 TI - Fast Image-Guided Stratification Using Anti-Programmed Death Ligand 1 Gold Nanoparticles for Cancer Immunotherapy. AB - Cancer immunotherapy has made enormous progress in offering safer and more effective treatments for the disease. Specifically, programmed death ligand 1 antibody (alphaPDL1), designed to perform immune checkpoint blockade (ICB), is now considered a pillar in cancer immunotherapy. However, due to the complexity and heterogeneity of tumors, as well as the diversity in patient response, ICB therapy only has a 30% success rate, at most; moreover, the efficacy of ICB can be evaluated only two months after start of treatment. Therefore, early identification of potential responders and nonresponders to therapy, using noninvasive means, is crucial for improving treatment decisions. Here, we report a straightforward approach for fast, image-guided prediction of therapeutic response to ICB. In a colon cancer mouse model, we demonstrate that the combination of computed tomography imaging and gold nanoparticles conjugated to alphaPDL1 allowed prediction of therapeutic response, as early as 48 h after treatment. This was achieved by noninvasive measurement of nanoparticle accumulation levels within the tumors. Moreover, we show that the nanoparticles efficiently prevented tumor growth with only a fifth of the standard dosage of clinical care. This technology may be developed into a powerful tool for early and noninvasive patient stratification as responders or nonresponders. PMID- 29028303 TI - Neutrophil-Particle Interactions in Blood Circulation Drive Particle Clearance and Alter Neutrophil Responses in Acute Inflammation. AB - Although nano- and microparticle therapeutics have been studied for a range of drug delivery applications, the presence of these particles in blood flow may have considerable and understudied consequences to circulating leukocytes, especially neutrophils, which are the largest human leukocyte population. The objective of this work was to establish if particulate drug carriers in circulation interfere with normal neutrophil adhesion and migration. Circulating blood neutrophils in vivo were found to be capable of rapidly binding and sequestering injected carboxylate-modified particles of both 2 and 0.5 MUm diameter within the bloodstream. These neutrophil-particle associations within the vasculature were found to suppress neutrophil interactions with an inflamed mesentery vascular wall and hindered neutrophil adhesion. Furthermore, in a model of acute lung injury, intravenously administered drug-free particles reduced normal neutrophil accumulation in the airways of C57BL/6 mice between 52% and 60% versus particle-free mice and between 93% and 98% in BALB/c mice. This suppressed neutrophil migration resulted from particle-induced neutrophil diversion to the liver. These data indicate a considerable acute interaction between injected particles and circulating neutrophils that can drive variations in neutrophil function during inflammation and implicate neutrophil involvement in the clearance process of intravenously injected particle therapeutics. Such an understanding will be critical toward both enhancing designs of drug delivery carriers and developing effective therapeutic interventions in diseases where neutrophils have been implicated. PMID- 29028306 TI - Wet Spinning of Flame-Retardant Cellulosic Fibers Supported by Interfacial Complexation of Cellulose Nanofibrils with Silica Nanoparticles. AB - The inherent flammability of cellulosic fibers limits their use in some advanced applications. This work demonstrates for the first time the production of flame retardant macroscopic fibers from wood-derived cellulose nanofibrils (CNF) and silica nanoparticles (SNP). The fibers are made by extrusion of aqueous suspensions of anionic CNF into a coagulation bath of cationic SNP at an acidic pH. As a result, the fibers with a CNF core and a SNP thin shell are produced through interfacial complexation. Silica-modified nanocellulose fibers with a diameter of ca. 15 MUm, a titer of ca. 3 dtex and a tenacity of ca. 13 cN tex-1 are shown. The flame retardancy of the fibers is demonstrated, which is attributed to the capacity of SNP to promote char forming and heat insulation on the fiber surface. PMID- 29028307 TI - Metabolomics of Small Numbers of Cells: Metabolomic Profiling of 100, 1000, and 10000 Human Breast Cancer Cells. AB - In cellular metabolomics, it is desirable to carry out metabolomic profiling using a small number of cells in order to save time and cost. In some applications (e.g., working with circulating tumor cells in blood), only a limited number of cells are available for analysis. In this report, we describe a method based on high-performance chemical isotope labeling (CIL) nanoflow liquid chromatography mass spectrometry (nanoLC-MS) for high-coverage metabolomic analysis of small numbers of cells (i.e., <=10000 cells). As an example, 12C-/13C dansyl labeling of the metabolites in lysates of 100, 1000, and 10000 MCF-7 breast cancer cells was carried out using a new labeling protocol tailored to handle small amounts of metabolites. Chemical-vapor-assisted ionization in a captivespray interface was optimized for improving metabolite ionization and increasing robustness of nanoLC-MS. Compared to microflow LC-MS, the nanoflow system provided much improved metabolite detectability with a significantly reduced sample amount required for analysis. Experimental duplicate analyses of biological triplicates resulted in the detection of 1620 +/- 148, 2091 +/- 89 and 2402 +/- 80 (n = 6) peak pairs or metabolites in the amine/phenol submetabolome from the 12C-/13C-dansyl labeled lysates of 100, 1000, and 10000 cells, respectively. About 63-69% of these peak pairs could be either identified using dansyl labeled standard library or mass-matched to chemical structures in human metabolome databases. We envisage the routine applications of this method for high-coverage quantitative cellular metabolomics using a starting material of 10000 cells. Even for analyzing 100 or 1000 cells, although the metabolomic coverage is reduced from the maximal coverage, this method can still detect thousands of metabolites, allowing the analysis of a large fraction of the metabolome and focused analysis of the detectable metabolites. PMID- 29028308 TI - Topographical Manipulation of Microparticles and Cells with Acoustic Microstreaming. AB - Precise and reproducible manipulation of synthetic and biological microscale objects in complex environments is essential for many practical biochip and microfluidic applications. Here, we present an attractive acoustic topographical manipulation (ATM) method to achieve efficient and reproducible manipulation of diverse microscale objects. This new guidance method relies on the acoustically induced localized microstreaming forces generated around microstructures, which are capable of trapping nearby microobjects and manipulating them along a determined trajectory based on local topographic features. This unique phenomenon is investigated by numerical simulations examining the local microstreaming in the presence of microscale boundaries under the standing acoustic wave. This method can be used to manipulate a single microobject around a complex structure as well as collectively manipulate multiple objects moving synchronously along complicated shapes. Furthermore, the ATM can serve for automated maze solving by autonomously manipulating microparticles with diverse geometries and densities, including live cells, through complex maze-like topographical features without external feedback, particle modification, or adjustment of operational parameters. PMID- 29028309 TI - Unique Reversible Conversion-Type Mechanism Enhanced Cathode Performance in Amorphous Molybdenum Polysulfide. AB - A unique reversible conversion-type mechanism is reported in the amorphous molybdenum polysulfide (a-MoS5.7) cathode material. The lithiation products of metallic Mo and Li2S2 rather than Mo and Li2S species have been detected. This process could yield a high discharge capacity of 746 mAh g-1. Characterizations of the recovered molybdenum polysulfide after the delithiaiton process manifests the high reversibility of the unique conversion reaction, in contrast with the general irreversibility of the conventional conversion-type mechanism. As a result, the a-MoS5.7 electrodes deliver high cycling stability with an energy density retention of 1166 Wh kg-1 after 100 cycles. These results provide a novel model for the design of high-capacity and long-life electrode materials. PMID- 29028310 TI - Direct Observation of Oxygen Vacancy Distribution across Yttria-Stabilized Zirconia Grain Boundaries. AB - Crystalline interfaces in materials often govern the macroscopic functional properties owing to their complex structure and chemical inhomogeneity. For ionic crystals, however, such understanding has been precluded by the debatable local anion distribution across crystal interfaces. In this study, using yttria stabilized zirconia as a model material, the oxygen vacancy distribution across individual grain boundaries was directly quantified by atomic-resolution scanning transmission electron microscopy with ultrahigh-sensitive energy-dispersive X-ray spectroscopy. Combined with dynamical scattering calculations, we unambiguously show that the relative oxygen concentrations increase in four high-angle grain boundaries, indicating that the oxygen vacancies are actually depleted near the grain boundary cores. These results experimentally evidence that the long-range electric interaction is the dominant factor to determine the local point defect distribution at ionic crystal interfaces. PMID- 29028312 TI - Light-Gated Memristor with Integrated Logic and Memory Functions. AB - Memristive devices are able to store and process information, which offers several key advantages over the transistor-based architectures. However, most of the two-terminal memristive devices have fixed functions once made and cannot be reconfigured for other situations. Here, we propose and demonstrate a memristive device "memlogic" (memory logic) as a nonvolatile switch of logic operations integrated with memory function in a single light-gated memristor. Based on nonvolatile light-modulated memristive switching behavior, a single memlogic cell is able to achieve optical and electrical mixed basic Boolean logic of reconfigurable "AND", "OR", and "NOT" operations. Furthermore, the single memlogic cell is also capable of functioning as an optical adder and digital-to analog converter. All the memlogic outputs are memristive for in situ data storage due to the nonvolatile resistive switching and persistent photoconductivity effects. Thus, as a memdevice, the memlogic has potential for not only simplifying the programmable logic circuits but also building memristive multifunctional optoelectronics. PMID- 29028311 TI - Radiolabeled, Antibody-Conjugated Manganese Oxide Nanoparticles for Tumor Vasculature Targeted Positron Emission Tomography and Magnetic Resonance Imaging. AB - Manganese oxide nanoparticles (Mn3O4 NPs) have attracted a great deal of attention in the field of biomedical imaging because of their ability to create an enhanced imaging signal in MRI as novel potent T1 contrast agents. In this study, we present tumor vasculature-targeted imaging in mice using Mn3O4 NPs through conjugation to the anti-CD105 antibody TRC105 and radionuclide copper-64 (64Cu, t1/2: 12.7 h). The Mn3O4 conjugated NPs, 64Cu-NOTA-Mn3O4@PEG-TRC105, exhibited sufficient stability in vitro and in vivo. Serial positron emission tomography (PET) and magnetic resonance imaging (MRI) studies evaluated the pharmacokinetics and demonstrated targeting of 64Cu-NOTA-Mn3O4@PEG-TRC105 to 4T1 murine breast tumors in vivo, compared to 64Cu-NOTA-Mn3O4@PEG. The specificity of 64Cu-NOTA-Mn3O4@PEG-TRC105 for the vascular marker CD105 was confirmed through in vivo, in vitro, and ex vivo experiments. Since Mn3O4 conjugated NPs exhibited desirable properties for T1 enhanced imaging and low toxicity, the tumor-specific Mn3O4 conjugated NPs reported in this study may serve as promising multifunctional nanoplatforms for precise cancer imaging and diagnosis. PMID- 29028313 TI - Anomalous Corrosion of Bulk Transition Metal Diselenides Leading to Stable Monolayers. AB - In this paper we provide insight into an anomalous corrosion process, referred to as electroablation (EA), which converts multilayer flakes of transition metal diselenides like MoSe2 into their corresponding monolayers when micromechanically exfoliated on a conductive electrode and subsequently subjected to a high anodic potential inside a conventional electrochemical cell. Photoluminescence intensity maps and scanning transmission electron microscopy (STEM) images confirmed the single crystalline nature and 2H-hexagonal lattice structure of the remnant monolayer MoSe2 flakes, indicating the superior corrosion stability of the monolayers compared to that of the bulk counterpart. It is noted that the EA technique is a low-cost alternative for high-yield synthesis of single crystalline monolayer MoSe2 at room temperature. We also found that the dynamics of such an electro-oxidation-mediated and self-limiting corrosion process differs significantly for MoSe2 and WSe2. While we were able to engineer the corrosion conditions for the EA process to obtain monolayers of MoSe2, our attempts to obtain monolayers of WSe2 were largely unsuccessful. Finally, we constructed a phenomenological physical chemistry framework to explain such anomalous corrosion processes in transition metal diselenides. PMID- 29028314 TI - Heterologous Gene Expression of N-Terminally Truncated Variants of LipPks1 Suggests a Functionally Critical Structural Motif in the N-terminus of Modular Polyketide Synthase. AB - Streptomyces genomes have a high G + C content and typically use an ATG or GTG codon to initiate protein synthesis. Although gene-finding tools perform well in low GC genomes, it is known that the accuracy in predicting a translational start site (TSS) is much less for high GC genomes. LipPks1 is a Streptomyces-derived, well-characterized modular polyketide synthase (PKS). Using this enzyme as a model, we experimentally investigated the effects of alternative TSSs using a heterologous host, Streptomyces venezuelae. One of the TSSs employed boosted the protein level by 59-fold and the product yield by 23-fold compared to the originally annotated start codon. Interestingly, a structural model of the PKS indicated the presence of a structural motif in the N-terminus, which may explain the observed different protein levels together with a proline and arginine-rich sequence that may inhibit translational initiation. This structure was also found in six other modular PKSs that utilize noncarboxylated starter substrates, which may guide the selection of optimal TSSs in conjunction with start-codon prediction software. PMID- 29028315 TI - Nanoparticles of Short Cationic Peptidopolysaccharide Self-Assembled by Hydrogen Bonding with Antibacterial Effect against Multidrug-Resistant Bacteria. AB - Cationic antimicrobial peptides (AMPs) and polymers are active against many multidrug-resistant (MDR) bacteria, but only a limited number of these compounds are in clinical use due to their unselective toxicity. The typical strategy for achieving selective antibacterial efficacy with low mammalian cell toxicity is through balancing the ratio of cationicity to hydrophobicity. Herein, we report a cationic nanoparticle self-assembled from chitosan-graft-oligolysine (CSM5-K5) chains with ultralow molecular weight (1450 Da) that selectively kills bacteria. Further, hydrogen bonding rather than the typical hydrophobic interaction causes the polymer chains to be aggregated together in water into small nanoparticles (with about 37 nm hydrodynamic radius) to concentrate the cationic charge of the lysine. When complexed with bacterial membrane, these cationic nanoparticles synergistically cluster anionic membrane lipids and produce a greater membrane perturbation and antibacterial effect than would be achievable by the same quantity of charge if dispersed in individual copolymer molecules in solution. The small zeta potential (+15 mV) and lack of hydrophobicity of the nanoparticles impedes the insertion of the copolymer into the cell bilayer to improve biocompatibility. In vivo study (using a murine excisional wound model) shows that CSM5-K5 suppresses the growth of methicillin-resistant Staphylococcus aureus (MRSA) bacteria by 4.0 orders of magnitude, an efficacy comparable to that of the last resort MRSA antibiotic vancomycin; it is also noninflammatory with little/no activation of neutrophils (CD11b and Ly6G immune cells). This study demonstrates a promising new class of cationic polymers-short cationic peptidopolysaccharides that effectively attack MDR bacteria due to the synergistic clustering of, rather than insertion into, bacterial anionic lipids by the concentrated polymers in the resulting hydrogen-bonding-stabilized cationic nanoparticles. PMID- 29028316 TI - Tailoring Nanocrystalline Metal-Organic Frameworks as Fluorescent Dye Carriers for Bioimaging. AB - Challenges exist in taking advantage of dye molecules for reliable and reproducible molecular probes in biomedical applications. In this study, we show how to utilize the dye molecules for bioimaging within protective carriers of nanocrystalline metal-organic frameworks (nMOFs) particles. Specifically, Resorufin and Rhodamine-6G having different molecular sizes were encapsulated within close-fitting pores of nMOF-801 and nUiO-67 particles, respectively. The resulting nanocrystalline particles have high crystallinity, uniform size, and morphology and preserve enhanced photoluminescence properties with exceptional stabilities in biomedical environment. The samples are further functionalized with a targeting agent and successfully work for fluorescence imaging of FL83B (human hepatocyte cell) and HepG2 (human hepatocellular carcinoma) without cytotoxicity. PMID- 29028317 TI - Impacts of Near-Future Ocean Acidification and Warming on the Shell Mechanical and Geochemical Properties of Gastropods from Intertidal to Subtidal Zones. AB - Many marine organisms produce calcareous shells as the key structure for defense, but the functionality of shells may be compromised by ocean acidification and warming. Nevertheless, calcifying organisms may adaptively modify their shell properties in response to these impacts. Here, we examined how reduced pH and elevated temperature affect shell mechanical and geochemical properties of common grazing gastropods from intertidal to subtidal zones. Given the greater environmental fluctuations in the intertidal zone, we hypothesized that intertidal gastropods would exhibit more plastic responses in shell properties than subtidal gastropods. Overall, three out of five subtidal gastropods produced softer shells at elevated temperature, while intertidal gastropods maintained their shell hardness at both elevated pCO2 (i.e., reduced pH) and temperature. Regardless of pH and temperature, degree of crystallization was maintained (except one subtidal gastropod) and carbonate polymorph remained unchanged in all tested species. One intertidal gastropod produced less soluble shells (e.g., higher calcite/aragonite) in response to reduced pH. In contrast, subtidal gastropods produced only aragonite which has higher solubility than calcite. Overall, subtidal gastropods are expected to be more susceptible than intertidal gastropods to shell dissolution and physical damage under future seawater conditions. The increased vulnerability to shell dissolution and predation could have serious repercussions for their survival and ecological contributions in the future subtidal environment. PMID- 29028319 TI - Hop to It. PMID- 29028320 TI - Tunneling Control of Chemical Reactions: The Third Reactivity Paradigm. AB - This Perspective describes the emergence of tunneling control as a new reactivity paradigm in chemistry. The term denotes a tunneling reaction that passes through a high but narrow potential energy barrier, leading to formation of a product that would be disfavored if the reaction proceeded by passage over kinetic barriers rather than through them. This reactivity paradigm should be considered along with thermodynamic and kinetic control as a factor that can determine which of two or more possible products is likely to be the one obtained. Tunneling control is a concept that can provide a deep and detailed understanding of a variety of reactions that undergo facile (and possibly unrecognized) tunneling. PMID- 29028318 TI - Combination of Calpha-H Hydrogen Bonds and van der Waals Packing Modulates the Stability of GxxxG-Mediated Dimers in Membranes. AB - The GxxxG motif is frequently found at the dimerization interface of a transmembrane structural motif called GASright, which is characterized by a short interhelical distance and a right-handed crossing angle between the helices. In GASright dimers, such as glycophorin A (GpA), BNIP3, and members of the ErbB family, the backbones of the helices are in contact, and they invariably display networks of 4 to 8 weak hydrogen bonds between Calpha-H carbon donors and carbonyl acceptors on opposing helices (Calpha-H...O?C hydrogen bonds). These networks of weak hydrogen bonds at the helix-helix interface are presumably stabilizing, but their energetic contribution to dimerization has yet to be determined experimentally. Here, we present a computational and experimental structure-based analysis of GASright dimers of different predicted stabilities, which show that a combination of van der Waals packing and Calpha-H hydrogen bonding predicts the experimental trend of dimerization propensities. This finding provides experimental support for the hypothesis that the networks of Calpha-H hydrogen bonds are major contributors to the free energy of association of GxxxG-mediated dimers. The structural comparison between groups of GASright dimers of different stabilities reveals distinct sequence as well as conformational preferences. Stability correlates with shorter interhelical distances, narrower crossing angles, better packing, and the formation of larger networks of Calpha-H hydrogen bonds. The identification of these structural rules provides insight on how nature could modulate stability in GASright and finely tune dimerization to support biological function. PMID- 29028321 TI - Stereospecific Allylic Functionalization: The Reactions of Allylboronate Complexes with Electrophiles. AB - Allylboronic esters react readily with carbonyls and imines (pi-electrophiles), but are unreactive toward a range of other electrophiles. By addition of an aryllithium, the corresponding allylboronate complexes display enhanced nucleophilicity, enabling addition to a range of electrophiles (tropylium, benzodithiolylium, activated pyridines, Eschenmoser's salt, Togni's reagent, Selectfluor, diisopropyl azodicarboxylate (DIAD), MeSX) in high regio- and stereocontrol. This protocol provides access to key new functionalities, including quaternary stereogenic centers bearing moieties such as fluorine and the trifluoromethyl group. The allylboronate complexes were determined to be 7 to 10 orders of magnitude more reactive than the parent boronic ester. PMID- 29028322 TI - Synthesis, Characterization, and Properties of Iron(II) Spin-Crossover Molecular Photoswitches Functioning at Room Temperature. AB - Spin-crossover molecular switches [FeII(H2B(pz)2)2L] (L = novel phenanthroline based ligands featuring photochromic diarylethene units; pz = 1-pyrazolyl) were synthesized and thoroughly characterized by variable-temperature X-ray crystallography, Mossbauer spectroscopy, and magnetic measurements. The effect of substituents introduced into the phenanthroline backbone (L2) and into the photochromic diarylethene unit (L3) on photophysical properties of metal-free ligands and spin-crossover iron(II) complexes 2 and 3, respectively, were investigated in detail. Both ligands and complexes could be switched with light in solution at room temperature. The photocyclization of 2 was accompanied by a high-spin to low-spin photoconversion determined at 19%. The closed-ring isomers of L3 and 3 reveal the lifetimes in the range of minutes, whereas those of L2 and 2 are thermally stable for days in solutions at room temperature. The reversibility of the photoswitching can be improved by avoiding the photostationary states. Prospective introduction of anchoring groups to the phenanthroline backbone might allow the construction of chemisorbed self assembled monolayers of spin-crossover species switchable with light at room temperature. PMID- 29028323 TI - Benchmarking of Computational Methods for Creation of Retention Models in Quantitative Structure-Retention Relationships Studies. AB - Quantitative structure-retention relationship (QSRR) models are powerful techniques for the prediction of retention times of analytes, where chromatographic retention parameters are correlated with molecular descriptors encoding chemical structures of analytes. Many QSRR models contain geometrical descriptors derived from the three-dimensional (3D) spatial coordinates of computationally predicted structures for the analytes. Therefore, it is sensible to calculate these structures correctly, as any error is likely to carry over to the resulting QSRR models. This study compares molecular modeling, semiempirical, and density functional methods (both B3LYP and M06) for structure optimization. Each of the calculations was performed in a vacuum, then repeated with solvent corrections for both acetonitrile and water. We also compared Natural Bond Orbital analysis with the Mulliken charge calculation method. The comparison of the examined computational methods for structure calculation shows that, possibly due to the error inherent in descriptor creation methods, a quick and inexpensive molecular modeling method of structure determination gives similar results to experiments where structures are optimized using an expensive and time-consuming level of computational theory. Also, for structures with low flexibility, vacuum or gas phase calculations are found to be as effective as those calculations with solvent corrections added. PMID- 29028324 TI - Correction to Characterization of the Fleeting Hydroxoiron(III) Complex of the Pentadentate TMC-py Ligand. PMID- 29028326 TI - Ratiometric pH Imaging with a CoII2 MRI Probe via CEST Effects of Opposing pH Dependences. AB - We report a Co2-based magnetic resonance (MR) probe that enables the ratiometric quantitation and imaging of pH through chemical exchange saturation transfer (CEST). This approach is illustrated in a series of air- and water-stable CoII2 complexes featuring CEST-active tetra(carboxamide) and/or hydroxyl-substituted bisphosphonate ligands. For the complex bearing both ligands, variable-pH CEST and NMR analyses reveal highly shifted carboxamide and hydroxyl peaks with intensities that increase and decrease with increasing pH, respectively. The ratios of CEST peak intensities at 104 and 64 ppm are correlated with solution pH in the physiological range 6.5-7.6 to construct a linear calibration curve of log(CEST104 ppm/CEST64 ppm) versus pH, which exhibits a remarkably high pH sensitivity of 0.99(7) pH unit-1 at 37 degrees C. In contrast, the analogous CoII2 complex with a CEST-inactive bisphosphonate ligand exhibits no such pH response, confirming that the pH sensitivity stems from the integration of amide and hydroxyl CEST effects that show base- and acid-catalyzed proton exchange, respectively. Importantly, the pH calibration curve is independent of the probe concentration and is identical in aqueous buffer and fetal bovine serum. Furthermore, phantom images reveal analogous linear pH behavior. The CoII2 probe is stable toward millimolar concentrations of H2PO4-/HPO42-, CO32-, SO42-, CH3COO , and Ca2+ ions, and more than 50% of melanoma cells remain viable in the presence of millimolar concentrations of the complex. The stability of the probe in physiological environments suggests that it may be suitable for in vivo studies. Together, these results highlight the ability of dinuclear transition metal PARACEST probes to provide a concentration-independent measure of pH, and they provide a potential design strategy toward the development of MR probes for ratiometric pH imaging. PMID- 29028327 TI - Carbon and Phosphorus Removal from Primary Municipal Wastewater Using Recovered Aluminum. AB - In this work, recovery of aluminum from coagulated primary sludge and its reuse potential as secondary coagulant were investigated. The recovery process consisted of releasing the particle-bound aluminum from primary sludge by acidification (HCl or H2SO4), followed by separation using centrifugation for dissolved coagulant recovery. The recovered coagulant was then reused for treating primary wastewater and overall coagulation efficiency was determined. While with fresh alum, the removal efficiencies of total suspended solids, chemical oxygen demand, total phosphorus, and total nitrogen were 85%, 65%, 80% and 33%, respectively, a drop in removal efficiency of total suspended solids and chemical oxygen demand was observed for recovered aluminum (85-60% and 65-50%, respectively). Nitrogen concentration remained almost constant with each cycle, while phosphorus in the effluent increased by 1 mg/L and 3 mg/L in the first and second cycle, respectively. Precipitation of various aluminum species was modeled for determining the recovery potential of aluminum at low pH. Preliminary cost analysis indicates that optimum recovery of aluminum occurred at a pH of 1.5 for both acids. Struvite precipitation effectively removed increased phosphorus solubilized by acidification at the end of second cycle, however, it also decreased the amount of aluminum available for recycle. PMID- 29028325 TI - DNA Aptamer-Based Activatable Probes for Photoacoustic Imaging in Living Mice. AB - DNA aptamers are a powerful class of molecules for sensing targets, but have been limited when applied to imaging in living animals because most aptamer probes are fluorescence-based, which limits imaging penetration depth. Photoacoustic (PA) imaging emerged as an alternative to MRI and X-ray tomography in biomedical imaging, due to its ability to afford high-resolution images at depths in the cm range. Despite its promise, PA imaging is limited by a lack of strategies to design selective and activatable probes for targets. To overcome this limitation, we report design and demonstration of PA probes based on DNA aptamers that can hybridize to DNA strands conjugated to a near-infrared fluorophore/quencher pair (IRDye 800CW/IRDye QC-1) with efficient contact quenching. Binding of the target triggered a release of the DNA strand with the quencher and thus relief of the contact quenching, resulting in a change of the PA signal ratio at 780/725 nm. Using thrombin as a model, a relationship was established between the thrombin concentrations and the PA ratio, with a dynamic range of 0-1000 nM and a limit of detection of 112 nM. Finally, in vivo PA imaging studies showed that the PA ratio increased significantly 45 min after injection of thrombin but not with injection of PBS as a vehicle control, demonstrating the first aptamer-based activatable PA probe for advanced molecular imaging in living mice. Since in vitro selection can obtain aptamers selective for many targets, the design demonstrated can be applied for PA imaging of a number of targets. PMID- 29028328 TI - Using Covalent Labeling and Mass Spectrometry To Study Protein Binding Sites of Amyloid Inhibiting Molecules. AB - Amyloid aggregates are associated with several debilitating diseases, and there are numerous efforts to develop small molecule treatments against these diseases. One challenge associated with these efforts is determining protein binding site information for potential therapeutics because amyloid-forming proteins rapidly form oligomers and aggregates, making traditional protein structural analysis techniques challenging. Using beta-2-microglobulin (beta2m) as a model amyloid forming protein along with two recently identified small molecule amyloid inhibitors (i.e., rifamycin SV and doxycycline), we demonstrate that covalent labeling and mass spectrometry (MS) can be used to map small-molecule binding sites for a rapidly aggregating protein. Specifically, three different covalent labeling reagents, namely diethylpyrocarbonate, 2,3-butanedione, and the reagent pair EDC/GEE, are used together to pinpoint the binding sites of rifamycin SV, doxycycline, and another molecule, suramin, which binds but does not inhibit Cu(II)-induced beta2m amyloid formation. The labeling results reveal binding sites that are consistent with the known effects of these molecules on beta2m amyloid formation and are in general agreement with molecular docking results. We expect that this combined covalent labeling approach will be applicable to other protein/small molecule systems that are difficult to study by traditional means. PMID- 29028329 TI - Sponge Spray-Reaching New Dimensions of Direct Sampling and Analysis by MS. AB - Sample preparation for the analysis of clinical samples with the mass spectrometer (MS) can be extensive and expensive. Simplifying and speeding up the process would be very beneficial. This paper reports sponge spray-a novel sampling and direct MS analysis approach-attempting exactly that. It enables direct analysis without any sample preparation from dried blood, plasma, and urine. The tip of a volumetric absorptive microsampling device is used to collect an exact amount of sample and from that same tip an electrospray can be directed into a mass spectrometer. We demonstrate here that, although with significant matrix effects, quantitation of penicillin G, a common antimicrobial, is possible in plasma and in urine, with essentially no sample preparation. PMID- 29028330 TI - Ambient-Stable Bis-Azoaromatic-Centered Diradical [(L*)M(L*)] Complexes of Rh(III): Synthesis, Structure, Redox, and Spin-Spin Interaction. AB - Bis-azoaromatic electron traps, viz. 2-(2-pyridylazo)azoarene 1, have been synthesized by colligating electron-deficient pyridine and azoarene moieties, and they act as apposite proradical templates for the formation of stable open-shell diradical complexes [(1*-)RhIII(1*-)]+ ([2]+), starting from the low-valent electron reservoir [RhI]. The less stable monoradical [RhIII(1*-)Cl2(PPh3)3] (3) has also been isolated as a minor product. These pi-radical complexes are multiredox systems, and the electron transfer processes occur exclusively within the pincer-type NNN ligand backbone 1. Molecular and electronic structures of the diradicals and monoradicals have been ascertained with the aid of X-ray diffraction, electrochemical, spectroelectrochemical, and spectral (electronic, IR, NMR, and EPR) studies. In the diradicals [2]+, the orthogonal disposition of two ligand pi orbitals linked via a closed-shell metal center (t26) impedes significant coupling between the radicals. Indeed, the observed magnetic moment of [2a]+ lies near ~2.3 MUB over the temperature range 50-300 K. A very weak antiferromagnetic (AF) intramolecular spin-spin interaction between two ligand pi arrays in [(1*-)RhIII(1*-)]+ have been found experimentally (J ~ -5 cm-1), and this is further substantiated by density functional theory (DFT) calculations at the (U)B3LYP/6-31G(d,p) level. PMID- 29028331 TI - Ion-Induced Hydrogel Formation and Nematic Ordering of Nanocrystalline Cellulose Suspensions. AB - Nanocrystalline cellulose (NCC) is a promising material for formation of hydrogels and nematic liquid crystals. While salt addition is known to facilitate hydrogel formation, it remains unclear whether this originates from cationic bridging or charge screening effects. Herein, we demonstrate the effect of mono- and divalent salts on NCC gelation and nematic ordering. A strong correlation of NCC suspension zeta-potential and rheological behavior was found. Lower concentrations of divalent cations were needed to decrease NCC zeta-potential and form hydrogels. The same zeta-potentials and gel strengths were achieved at higher concentrations of monovalent salts. Salt-induced NCC aggregation is thus caused by intermolecular attractive forces rather than cationic bridging. Against excluded volume argumentation, salt addition was found to promote NCC nematic phase formation. Increased nematic ordering was observed in a transition regime of moderate salt addition before complete aggregation occurs. This regime is governed by an equilibrium of repulsive and attractive forces. Small angle neutron scattering suggests lateral orientation of NCC. Hence, NCC gelation and nematic ordering can be modulated via its zeta-potential by targeted salt addition. PMID- 29028332 TI - Coupling Light Emitting Diodes with Photocatalyst-Coated Optical Fibers Improves Quantum Yield of Pollutant Oxidation. AB - A photocatalyst-coated optical fiber was coupled with a 318 nm ultraviolet-A light emitting diode, which activated the photocatalysts by interfacial photon electron excitation while minimizing photonic energy losses due to conventional photocatalytic barriers. The light delivery mechanism was explored via modeling of evanescent wave energy produced upon total internal reflection and photon refraction into the TiO2 surface coating. This work explores aqueous phase LED irradiated optical fibers for treating organic pollutants and for the first time proposes a dual-mechanistic approach to light delivery and photocatalytic performance. Degradation of a probe organic pollutant was evaluated as a function of optical fiber coating thickness, fiber length, and photocatalyst attachment method and compared against the performance of an equivalent catalyst mass in a completely mixed slurry reactor. Measured and simulated photon fluence through the optical fibers decreased as a function of fiber length, coating thickness, or TiO2 mass externally coated on the fiber. Thinner TiO2 coatings achieved faster pollutant removal rates from solution, and dip coating performed better than sol gel attachment methods. TiO2 attached to optical fibers achieved a 5-fold higher quantum yield compared against an equivalent mass of TiO2 suspended in a slurry solution. PMID- 29028333 TI - Profiling and Quantification of Regioisomeric Caffeoyl Glucoses in Berry Fruits. AB - On the basis of a recently developed tandem mass spectrometry-based hierarchical scheme for the identification of regioisomeric caffeoyl glucoses, selected berry fruits were profiled for their caffeoyl glucose ester content. Fresh edible berries profiled, including strawberries, raspberries, blueberries, blackberries, red currant, black currant, lingonberries, gooseberries, and juices of elderberries, goji berries, chokeberries, cranberries, acai berries, sea buckthorn berries, Montmorency sour cherries, and pomegranates, were investigated. 1-Caffeoyl glucose was found to be the predominant isomer in the majority of samples, with further profiling revealing the presence of additional hydroxycinnamoyl glucose esters and O-glycosides with p-coumaroyl, feruloyl, and sinapoyl substituents. A quantitative liquid chromatography-mass spectrometry based method was developed and validated, and all caffeoyl glucose isomers were quantified for the first time in edible berries. PMID- 29028334 TI - Dynamic Control of Aptamer-Ligand Activity Using Strand Displacement Reactions. AB - Nucleic acid aptamers are an expandable toolkit of sensors and regulators. To employ aptamer regulators within nonequilibrium molecular networks, the aptamer ligand interactions should be tunable over time, so that functions within a given system can be activated or suppressed on demand. This is accomplished through complementary sequences to aptamers, which achieve programmable aptamer-ligand dissociation by displacing the aptamer from the ligand. We demonstrate the effectiveness of our simple approach on light-up aptamers as well as on aptamers inhibiting viral RNA polymerases, dynamically controlling the functionality of the aptamer-ligand complex. Mathematical models allow us to obtain estimates for the aptamer displacement kinetics. Our results suggest that aptamers, paired with their complement, could be used to build dynamic nucleic acid networks with direct control over a variety of aptamer-controllable enzymes and their downstream pathways. PMID- 29028335 TI - Metallo-supramolecular Complexes Enantioselectively Eradicate Cancer Stem Cells in Vivo. AB - Cancer stem cells (CSCs) are responsible for drug resistance, metastasis and recurrence of cancers. However, there is still no clinically approved drug that can effectively eradicate CSCs. Thus, it is crucial and important to develop specific CSC-targeting agents. Chiral molecular recognition of DNA plays an important role in rational drug design. Among them, polymorphic telomeric G quadruplex DNA has received much attention due to its significant roles in telomerase activity and chromosome stability. Herein, we find that one enantiomer of zinc-finger-like chiral metallohelices, [Ni2L3]4+-P, a telomeric G-quadruplex targeting ligand, can preferentially reduce cell growth in breast CSCs compared to the bulk cancer cells. In contrast, its enantiomer, [Ni2L3]4+-M, has little effect on both populations. Further studies indicate that [Ni2L3]4+-P can repress CSC properties and induce apoptosis in breast CSCs. This is different to the bulk cancer cells. The inhibition of breast CSC traits is involved in the nuclear translocation of hTERT. The apoptosis is associated with the induction of telomere uncapping, telomere DNA damage and the degradation of 3'-overhang. Moreover, [Ni2L3]4+-P, but not [Ni2L3]4+-M, has the ability to reduce tumorigenesis of breast CSCs in vivo. To our knowledge, this is the first report that chiral complexes show significant enantioselectivity on eradicating CSCs. PMID- 29028336 TI - Reaction of CO2 with UO3 Nanoclusters. AB - Adsorption of CO2 to uranium oxide, (UO3)n, clusters was modeled using density functional theory (DFT) and coupled cluster theory (CCSD(T)). Geometries and reaction energies were predicted for carbonate formation (chemisorption) and Lewis acid-base addition of CO2 (physisorption) to these (UO3)n clusters. Chemisorption of multiple CO2 moieties was also modeled for dimer and trimer clusters. Physisorption and chemisorption were both predicted to be thermodynamically allowed for (UO3)n clusters, with chemisorption being more thermodynamically favorable than physisorption. The most energetically favored (UO3)3(CO2)m clusters contain tridentate carbonates, which is consistent with solid-state and solution structures for uranyl carbonates. The calculations show that CO2 exposure is likely to convert (UO3)n to uranyl carbonates. PMID- 29028337 TI - Effect of Orbital Interactions between Vicinal Bonds and between Hydroxy Groups on the Conformational Stabilities of 1,2-Ethanediol and 2,3-Butanediols. AB - The geometries of the two hydroxy groups in 1,2-ethanediol or 2,3-butanediols are more stable in a gauche orientation than those in an anti orientation. This has been generally explained in terms of the gauche effect, which is stabilization due to antiperiplanar electron delocalization between an antibonding orbital of the C-O bond (sigmaCO*) and a bonding orbital of the C-H or C-C bond (sigmaCH or sigmaCC). However, a C-C single bond rotation simultaneously determines the geometries of the six vicinal bonds. Therefore, it is important to understand the effects on conformational stability of other interactions of the bond orbitals adjacent to the rotating C1-C2 bond. Bond model analysis revealed that antiperiplanar bond orbital interactions as a whole contribute to the higher stabilities of hydroxy/hydroxy gauche conformers, where the C-O/C-H or C-O/C-C combination including the sigmaCO*/sigmaCH or sigmaCO*/sigmaCC delocalization is not the dominant interaction stabilizing hydroxy/hydroxy gauche conformers. Rather, our results show that a large destabilization due to the antiperiplanar C O/C-O combination in hydroxy/hydroxy anti conformers relatively increases the stabilities of hydroxy/hydroxy gauche conformers. This destabilization results mainly from the repulsion between the antiperiplanar bonding orbitals (sigmaCO/sigmaCO), which have a larger overlap compared to the synclinal sigmaCO/sigmaCO combination. The sum of the interbond energies between the vicinal bond orbitals of these 1,2-alkanediols is more advantageous for stability in gauche conformers. In addition, interactions between the gauche-oriented hydroxy groups provide large stabilization energies and the corresponding interactions in anti conformers are negligible. The relative conformational stabilities of 1,2-ethanediol and erythro-2,3-butanediol can be explained by the interactions between the antiperiplanar bond orbitals, between the vicinal bond orbitals, or between the hydroxy groups in addition to the combination of interactions between the vicinal bond orbitals and between the hydroxy groups. In contrast, in threo-2,3-butanediol, differences in the relative stabilities of the three conformers can be understood by the combination of the interactions between the vicinal bond orbitals and between the hydroxy groups. PMID- 29028339 TI - Silver/Scandium-Cocatalyzed Bicyclization of beta-Alkynyl Ketones Leading to Benzo[c]xanthenes and Naphtho[1,2-b]benzofurans. AB - The combination of AgTFA and Sc(OTf)3 enables the bimetallic synergistic catalysis of beta-alkynyl ketones and para-quinone methides (p-QMs), allowing direct synthesis of 17 examples of benzo[c]xanthenes with generally good yields through a benzannulation/1,6-addition/cyclization sequence. Exchanging p-QMs for quinone imine ketal resulted in 10 examples of tetracyclic naphtho[1,2 b]benzofurans via a similar benzannulation/1,4-addition/cyclization cascade. During these reaction processes, AgTFA and Sc(OTf)3 could be perfectly compatible, together with the realization of C(sp3)-H functionalization adjacent to carbonyl group on the beta-alkynyl ketone unit. PMID- 29028338 TI - Molecular Hybridization of Potent and Selective gamma-Hydroxybutyric Acid (GHB) Ligands: Design, Synthesis, Binding Studies, and Molecular Modeling of Novel 3 Hydroxycyclopent-1-enecarboxylic Acid (HOCPCA) and trans-gamma-Hydroxycrotonic Acid (T-HCA) Analogs. AB - gamma-Hydroxybutyric acid (GHB) is a neuroactive substance with specific high affinity binding sites. To facilitate target identification and ligand optimization, we herein report a comprehensive structure-affinity relationship study for novel ligands targeting these binding sites. A molecular hybridization strategy was used based on the conformationally restricted 3-hydroxycyclopent-1 enecarboxylic acid (HOCPCA) and the linear GHB analog trans-4-hydroxycrotonic acid (T-HCA). In general, all structural modifications performed on HOCPCA led to reduced affinity. In contrast, introduction of diaromatic substituents into the 4 position of T-HCA led to high-affinity analogs (medium nanomolar Ki) for the GHB high-affinity binding sites as the most high-affinity analogs reported to date. The SAR data formed the basis for a three-dimensional pharmacophore model for GHB ligands, which identified molecular features important for high-affinity binding, with high predictive validity. These findings will be valuable in the further processes of both target characterization and ligand identification for the high affinity GHB binding sites. PMID- 29028340 TI - Probing the Binding Pathway of BRACO19 to a Parallel-Stranded Human Telomeric G Quadruplex Using Molecular Dynamics Binding Simulation with AMBER DNA OL15 and Ligand GAFF2 Force Fields. AB - Human telomeric DNA G-quadruplex has been identified as a good therapeutic target in cancer treatment. G-quadruplex-specific ligands that stabilize the G quadruplex have great potential to be developed as anticancer agents. Two crystal structures (an apo form of parallel stranded human telomeric G-quadruplex and its holo form in complex with BRACO19, a potent G-quadruplex ligand) have been solved, yet the binding mechanism and pathway remain elusive. In this study, we simulated the binding of a free BRACO19 molecule to the apo form of the G quadruplex using the latest AMBER DNA (OL15) and ligand (GAFF2) force fields. Three binding modes have been identified: top stacking, bottom intercalation, and groove binding. Bottom intercalation (51% of the population) resembles the bottom binding pose in the complex crystal structure very well. The groove binding mode is less stable than the bottom binding mode and is likely to be an intermediate state leading to the bottom binding mode. A flip-insertion mechanism was observed in the bottom intercalation mode, during which flipping of the bases outward makes space for ligand insertion, after which the bases flip back to increase the stability of the complex. In addition to reproducing the base-flipping behavior for some loop residues upon ligand binding, the direct alignment type of the ATAT tetrad was observed in our simulations for the first time. These successes provide initial support for using this combination of the OL15 and GAFF2 force fields to study quadruplex-ligand interactions. PMID- 29028341 TI - Highly Ordered Organic Ferroelectric DIPAB-Patterned Thin Films. AB - Ferroelectric molecular compounds present great advantages for application in electronics because they combine high polarization values, comparable to those of inorganic materials, with the flexibility and low-cost properties of organic ones. However, some limitations to their applicability are related to the high crystallinity required to deploy ferroelectricity. In this article, highly ordered ferroelectric patterned thin films of diisopropylammonium bromide have been successfully fabricated by a lithographically controlled wetting technique. Confinement favors the self-organization of ferroelectric crystals, avoiding the formation of polymorphs and promoting the long-range orientation of crystallographic axes. Patterned structures present high stability, and the polarization can be switched to be arranged in stable domain pattern for application in devices. PMID- 29028342 TI - Radical-Pair-Based Magnetoreception Amplified by Radical Scavenging: Resilience to Spin Relaxation. AB - Birds and several other species are equipped with the remarkable ability to sense the geomagnetic field for the purpose of navigation and orientation. The primary detection mechanism of this compass sense is uncertain but appears to originate from a truly quantum process involving spin-correlated radical pairs. In order to elicit sensitivity to weak magnetic fields, such as the Earth's magnetic field, the underlying spin dynamics must be protected from fast decoherence. In this work, we elucidate the effects of spin relaxation on a recently suggested reaction scheme involving three radicals, instead of a radical pair, doublet quartet interconversion under magnetic interactions, and a spin-selective scavenging reaction. We show that, besides giving rise to a vastly enhanced reaction anisotropy, this extended reaction scheme is more resilient to spin relaxation than the conventional radical pair mechanism. Surprisingly, the anisotropic magnetic field effect can be enhanced by fast spin relaxation in one of the radicals of the primary pair. We discuss this finding in the context of magnetoreception. Radical scavenging can protect the spin system against fast spin relaxation in one of the radicals, thereby providing a credible model to the involvement of fast relaxing radical pairs, such as FADH*/O2*-, in radical-pair based magnetoreception. This finding will help explain behavioral observations that seem incompatible with the previously proposed flavin semiquinone/tryptophanyl radical pair. PMID- 29028343 TI - Synthesis of Substituted Quinazolin-4(3H)-imines From Aryldiazonium Salts, Nitriles and 2-Cyanoanilines via A Metal-Free Tandem Approach. AB - A transition metal-free synthesis of multisubstituted quinazolin-4(3H)-imines has been realized by the direct reaction of aryldiazonium salts, nitriles, and 2 cyanoanilines in a one-pot fashion. This strategy utilizes the in situ formation of reactive N-arylnitrilium intermediate, which undergoes further tandem cyclization with consecutive formation of N-C bonds. Broad functional group compatibility, mild conditions, shorter time, and operational simplicity are the notable features of this report. PMID- 29028344 TI - Gelling Lamellar Phases of the Binary System Water-Didodecyldimethylammonium Bromide with an Organogelator. AB - Does the presence of a gel network influence the properties of a lyotropic liquid crystal? Does the replacement of oil by a lyotropic liquid crystal influence the properties of an organogel? To answer these questions we study gelled lyotropic liquid crystals (LLC). In the present study we show that it is possible to gel the lamellar phase of the binary system water-didodecyl dimethylammonium bromide (2C12DAB) with the organogelator 12-hydroxyoctadecanoic acid (12-HOA). We compare various properties of the gelled LLC phases with the "parent systems", i.e., with the binary organogel consisting of n-decane-12-HOA and with the nongelled LC phases, respectively. Optical and electron microscopy, differential scanning calorimetry (DSC), rheometry, as well as small and wide-angle X-ray scattering (SWAXS) proved the coexistence of an Lalpha phase and a 12-HOA gel network in the gelled Lalpha phase. However, a small influence of the Lalpha phase on the gel properties was seen, namely slightly lower sol-gel transition temperatures and viscoelastic moduli of the gelled Lalpha phase compared to the binary gel. On the other hand, the presence of the gel also has an influence on the Lalpha phase: the interlayer spacing of the surfactant bilayers in the gelled Lalpha phases is slightly larger compared to the nongelled Lalpha phases, which is due to mixing part of the 12-HOA molecules in the Lalpha bilayers. Despite this mutual influence the structures of both the Lalpha phase and the gel network are hardly disturbed in the gelled Lalpha phase, i.e., that the self-assembly of the surfactant and of the gelator molecules clearly occur in an orthogonal way. PMID- 29028345 TI - Iron-Catalyzed Carbene Insertion Reactions of alpha-Diazoesters into Si-H Bonds. AB - An efficient iron-catalyzed carbene insertion reaction of alpha-diazo carbonyl compounds into the Si-H bond was developed. A wide range of alpha-silylesters was obtained in high yields (up to 99%) from alpha-diazoesters using a simple iron(II) salt as catalyst. PMID- 29028346 TI - Influence of Hofmeister I- on Tuning Optoelectronic Properties of Ampholytic Polythiophene by Varying pH and Conjugating with RNA. AB - A significant tuning of optoelectronic properties of polythiophene (PT) chains due to Hofmeister iodide (I-) ion is demonstrated in ampholytic polythiophene [polythiophene-g-poly{(N,N,N-trimethylamino iodide)ethyl methacrylate-co methacrylic acid}, APT] at different pHs. In acidic medium, the absorption and emission signals of PT chromophore exhibit appreciable blue shift in the presence of I- as counteranion only. The cooperative effect of undissociated -COOH and quaternary ammonium groups immobilize I- near the apolar PT chain causing threading of grafted chains and hence twisting of the backbone attributing to the blue shift. As medium pH is increased, dethreading of the PT backbone occurs due to ionization of -COOH group, releasing quencher iodide ions from the vicinity of the PT chains resulting in a red shift in absorption and a sharp hike in fluorescence intensity (390 times) for an increase of excitons lifetime. With an increase of pH, morphology changes from a multivesicular aggregate with vacuoles to smaller size vesicles and finally to nanofibrillar network structure. Dethreading is also found when APT interacts with RNA showing a significant hike of fluorescence (22 times) for displacing iodide ions forming a nanofibrillar network morphology. Threading and dethreading also affect the resistance, capacitance, and Warburg impedance values of APT. Molecular dynamics simulation of a model APT chain in a water box supports the threading at lower pH where the iodide ions pose nearer to the PT chain than that at higher pH causing dethreading. So the influence of Hofmeister I- ion is established for tuning the optoelectronic properties of a novel PT based polyampholyte by changing pH or by conjugating with RNA. PMID- 29028347 TI - Switchable Plasmonic Metasurfaces with High Chromaticity Containing Only Abundant Metals. AB - Plasmonic color generation offers several advantages but is also limited by the cost and availability of noble metals like gold. In this work, we present color tunable metasurfaces with high chromaticity and reflectivity consisting of an aluminum mirror, a dielectric spacer, and a plasmonic nanohole array in copper. Copper is shown to be an excellent alternative to gold when properly protected from oxidation and makes it possible to generate a wide RGB gamut covering 27% of the standard RGB. By patterning the metasurfaces into microscale pixel triplets, color photos can be well reproduced with high resolution over wafer-sized areas. Further, we demonstrate active modulation of the reflected intensity using an electrochromic conductive polymer deposited on top of the nanostructures by screen printing. This technology opens up for ultrathin and flexible reflective displays in full color, that is, plasmonic electronic paper, compatible with large-scale sustainable production. PMID- 29028348 TI - Directed Organization of Platinum Nanocrystals through Organic Supramolecular Nanoporous Templates. AB - We propose a novel approach to trap 2 nm Pt nanocrystals using nanoporous two dimensional supramolecular networks for cavity-confined host-guest recognition process. This will be achieved by taking advantage of two features of supramolecular self-assembly at surfaces: First, its capability to allow the formation of complex 2D architectures, more particularly, nanoporous networks, through noncovalent interactions between organic molecular building-blocks; second, the ability of the nanopores to selectively host and immobilize a large variety of guest species. In this paper, for the first time, we will use isotropic honeycomb networks and anisotropic linear porous supramolecular networks to host 2 nm Pt nanocrystals. PMID- 29028349 TI - Proteomic Profiling of beta-hCG-Induced Spheres in BRCA1 Defective Triple Negative Breast Cancer Cells. AB - Previously, we identified that beta-hCG is expressed by BRCA1 mutated but not wild type breast cancers in vitro/in vivo and exhibited a novel event in beta-hCG overexpressing BRCA1 mutated HCC1937 cells where the cells were able to form spheres (HCC1937 beta spheres) in adherent cell culture plates even in the absence of any growth factors. These spheres express stem cell and EMT markers. In the present study, we carried out the total proteomic profiling of these HCC1937 beta spheres obtained from BRCA1 defective beta-hCG expressing stable breast cancer cells to analyze the cell signaling pathways that are active in these cells. Functional annotation revealed proteins (164 cellular and 97 secretory) predominantly involved in oxygen binding, nucleosome assembly, cytoskeleton organization, protein folding, etc. Many of the proteins identified from HCC1937 beta spheres in this study are also up regulated in breast cancers, which are directly linked with poor prognosis in human cancer samples as analyzed using TCGA data set. Survival analysis shows that beta-hCG expressing cancer patients are linked with poor survival rate. Interestingly, hemoglobins were identified at both cellular and secretory level in HCC1937 beta spheres and experiments after treating with ROS inducers revealed that beta-hCG induces hemoglobin and protects the cancer cells during oxidative stress. Our proteomic data strongly propose beta-hCG as an oncogenic molecule associated with BRCA1 mutation, and hence, targeting beta-hCG could be a strategy to treat BRCA1 defective breast cancers. PMID- 29028350 TI - Asymmetric Synthesis of (-)-6'-beta-Fluoro-aristeromycin via Stereoselective Electrophilic Fluorination. AB - (-)-6'-beta-Fluoro-aristeromycin (2), a potent inhibitor of S adenosylhomocysteine (AdoHcy) hydrolase, has been synthesized via stereoselective electrophilic fluorination followed by a purine base build-up approach. Interestingly, purine base condensation using a cyclic sulfate resulted in a synthesis of (+)-5'-beta-fluoro-isoaristeromycin (2a). Computational analysis indicates that the fluorine atom controlled the regioselectivity of the purine base substitution. PMID- 29028352 TI - Effect of Dimensionality and Doping in Quasi-"One-Dimensional (1-D)" Nitrogen Doped Graphene Nanoribbons on the Oxygen Reduction Reaction. AB - Designing an efficient metal-free electrocatalyst for the oxygen reduction reaction (ORR) is a challenging research theme having enormous practical importance in several renewable energy technologies like fuel cell and metal-air batteries. Here we discuss a cost-effective and commercially viable strategy to develop high-performance nitrogen-doped graphene nanoribbon (N-GNR), which is a quasi-"one-dimensional" analogue of graphene. We have selected the N-GNR system to identify the doping-induced variation in the distribution of active catalytic sites experimentally in graphene-based electrocatalysts. N-GNR exhibits a comparable exchange current density (1.65 * 10-9 vs 2.25 * 10-9 A cm-2), thermodynamic potential (0.80 vs 0.83 V), and smaller Tafel slope (55 vs 60 mV dec-1) with respect to the benchmarking platinum/carbon (Pt/C), and also, more precisely, it goes through a four-electron pathway with low hydrogen peroxide yield. Although the exact mechanism is still not clear, the theme of the work is based on the identification of the possible active sites with the help of experimental evidence like X-ray photoelectron spectroscopy. These results support the assumption that an edge N (pyridinic N)-bonded adjacent C lowers the activation energy barriers of O2 adsorption, predominantly to kinetically facilitate the ORR activity. We hope these results will be helpful in developing more efficient ORR catalysts. PMID- 29028351 TI - A Hexamer of a Peptide Derived from Abeta16-36. AB - The absence of high-resolution structures of amyloid oligomers constitutes a major gap in our understanding of amyloid diseases. A growing body of evidence indicates that oligomers of the beta-amyloid peptide Abeta are especially important in the progression of Alzheimer's disease. In many Abeta oligomers, the Abeta monomer components are thought to adopt a beta-hairpin conformation. This paper describes the design and study of a macrocyclic beta-hairpin peptide derived from Abeta16-36. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis and size exclusion chromatography studies show that the Abeta16 36 beta-hairpin peptide assembles in solution to form hexamers, trimers, and dimers. X-ray crystallography reveals that the peptide assembles to form a hexamer in the crystal state and that the hexamer is composed of dimers and trimers. Lactate dehydrogenase release assays show that the oligomers formed by the Abeta16-36 beta-hairpin peptide are toxic toward neuronally derived SH-SY5Y cells. Replica-exchange molecular dynamics demonstrates that the hexamer can accommodate full-length Abeta. These findings expand our understanding of the structure, solution-phase behavior, and biological activity of Abeta oligomers and may offer insights into the molecular basis of Alzheimer's disease. PMID- 29028354 TI - Nanosheet Array-Like Palladium-Catalysts Pdx/rGO@CoAl-LDH via Lattice Atomic Confined in Situ Reduction for Highly Efficient Heck Coupling Reaction. AB - A series of novel nanosheet array-like catalysts Pdx/rGO@CoAl-LDH (x = 0.0098 1.9, refers to Pd loading in wt % on ICP, rGO: reduced graphene oxide, LDH: layered double hydroxide) were first prepared via a simple and green lattice atomic-confined in situ reduction of oxidative Pd precursors by the evenly atomic dispersed reductive Co2+ sites on LDH layers of a nanohybrid rGO@CoAl-LDH with hexagonal LDH nanoplates (~73 * 7 nm) interdigitated vertical to the surfaces of rGO layer in both sides, fabricated through a simple citric acid-assisted aqueous phase coprecipitation method. The as-obtained Pd catalysts possess clean Pd nanoclusters (NCs) with tunable sizes in 1.3-1.8 nm on varied Pd loadings. All the Pdx/rGO@CoAl-LDH catalysts show excellent activities for the Heck reaction, and the Pd0.0098/rGO@CoAl-LDH with the ultrafine Pd NCs of 1.3 +/- 0.2 nm yields a maximum turnover frequency of 160 000 h-1 over a heterogeneous catalyst so far. The excellent activities can be attributed to the ultrasmall Pd NCs with high dispersion and clean Pd surfaces, increased electron transfer capacity and surface area, and remarkable Pd-CoAl-LDH-rGO three-phase synergistic effect of the present unique nanosheet array-like Pd NCs catalysts. Moreover, the catalyst Pd0.33/rGO@CoAl-LDH shows a broad range of substrate applicability and can be reused more than five runs without obvious loss of activity, giving the present catalysts long-term stability. These findings make the rGO@CoAl-LDH hybrid prepared by a facile and scalable synthesis route a universal green platform to support other noble or nonprecious metal NCs via lattice atomic-confined in situ reduction strategy to construct more desired heterogeneous catalysts. PMID- 29028355 TI - Ion Transport and Competition Effects on NaTi2(PO4)3 and Na4Mn9O18 Selective Insertion Electrode Performance. AB - We evaluate the efficiency and capacity of electrochemically reversible insertion electrodes for use in targeted ion removal applications in aqueous solutions. The relative attributes of insertion material chemistry are evaluated by comparing the performance of two different sodium insertion materials, NaTi2(PO4)3 and Na4Mn9O18, in different electrolyte environments. We performed experiments over a range of solution compositions containing both sodium and other non-inserting ions, and we then developed mechanistic insight into the effects of solution concentration and composition on overpotential losses and round trip Coulombic efficiency. In dilute aqueous streams, performance was limited by the rate of ion transport from the bulk electrolyte region to the electrode interface. This leads to slow rates of ion removal, large overpotentials for ion insertion, parasitic charge loss due to water electrolysis, and lower round trip Coulombic efficiencies. This effect is particularly large for insertion electrodes with redox potentials exceeding the water stability window. In solutions with high background concentrations of non-inserting ions, the accumulation of non inserting ions at the electrode interface limits inserting ion flux and leads to low ion removal capacity and round trip Coulombic efficiency. PMID- 29028353 TI - Activated Microglia Targeting Dendrimer-Minocycline Conjugate as Therapeutics for Neuroinflammation. AB - Brain-related disorders have outmatched cancer and cardiovascular diseases worldwide as the leading cause of morbidity and mortality. The lack of effective therapies and the relatively dry central nervous system (CNS) drug pipeline pose formidable challenge. Superior, targeted delivery of current clinically approved drugs may offer significant potential. Minocycline has shown promise for the treatment of neurological diseases owing to its ability to penetrate the blood brain barrier (BBB) and potency. Despite its potential in the clinic and in preclinical models, the high doses needed to affect a positive therapeutic response have led to side effects. Targeted delivery of minocycline to the injured site and injured cells in the brain can be highly beneficial. Systemically administered hydroxyl poly(amidoamine) (PAMAM) generation-6 (G6) dendrimers have a longer blood circulation time and have been shown to cross the impaired BBB. We have successfully prepared and characterized the in vitro efficacy and in vivo targeting ability of hydroxyl-G6 PAMAM dendrimer-9-amino minocycline conjugate (D-mino). Minocycline is a challenging drug to carry out chemical transformations due to its inherent instability. We used a combination of a highly efficient and mild copper catalyzed azide-alkyne click reaction (CuAAC) along with microwave energy to conjugate 9-amino-minocycline (mino) to the dendrimer surface via enzyme responsive linkages. D-mino was further evaluated for anti-inflammatory and antioxidant activity in lipopolysaccharides activated murine microglial cells. D-mino conjugates enhanced the intracellular availability of the drug due to their rapid uptake, suppressed inflammatory cytokine tumor necrosis factor alpha (TNF-alpha) production, and reduced oxidative stress by suppressing nitric oxide production, all significantly better than the free drug. Fluorescently labeled dendrimer conjugate (Cy5-D-mino) was systematically administered (intravenous, 55 mg/kg) on postnatal day 1 to rabbit kits with a clinically relevant phenotype of cerebral palsy. The in vivo imaging study indicates that Cy5-D-mino crossed the impaired blood-brain barrier and co localized with activated microglia at the periventricular white matter areas, including the corpus callosum and the angle of the lateral ventricle, with significant implications for positive therapeutic outcomes. The enhanced efficacy of D-mino, when combined with the inherent neuroinflammation-targeting capability of the PAMAM dendrimers, may provide new opportunities for targeted drug delivery to treat neurological disorders. PMID- 29028356 TI - Aggregation of a Cationic Gemini Surfactant with a Chelating Molecule and Effects from Calcium Ions. AB - The aggregation behavior of cationic ammonium gemini surfactant hexamethylene-1,6 bis(dodecyldimethylammonium bromide) (12-6-12) with chelating molecule ethylenediaminetetraacetic acid (EDTA) and the effects of calcium bromide (CaBr2) on the structure and morphology of the aggregates in the mixture have been investigated by surface tension, isothermal titration microcalorimetry, electrical conductivity, zeta potential, dynamic light scattering, cryogenic transmission electron microscopy, freeze-fracture transmission electron microscopy, and 1H NMR techniques. It was found that the electrostatic attraction between the carboxyl groups of EDTA and the headgroups of 12-6-12 leads to the formation of oligomeric-like surfactant EDTA(12-6-12)2 at an EDTA/12-6-12 molar ratio of 0.50. The critical aggregation concentration of the EDTA(12-6-12)2 complexes is much lower than that of 12-6-12, and the complexes form loose, large network-like premicellar aggregates and then transfer into small micelles with an increase in concentration. Moreover, the addition of CaBr2 induces the transition from the loose aggregates and micelles to vesicles owing to the coordination interaction between the calcium ion and EDTA and the electrostatic interaction between EDTA and 12-6-12. The work reveals that as a bridging molecule between the calcium ion and the gemini surfactant, the chelating molecule greatly promotes the assembly of the gemini surfactant and strengthens the molecular packing in the presence of calcium ions. PMID- 29028358 TI - Posterior Tibial Translation Measurements on Magnetic Resonance Imaging Improve Diagnostic Sensitivity for Chronic Posterior Cruciate Ligament Injuries and Graft Tears. AB - BACKGROUND: Magnetic resonance imaging (MRI) of the knee is a highly sensitive and specific method for diagnosing acute posterior cruciate ligament (PCL) tears, with a reported accuracy of 96% to 100%. In chronic and revision settings, these injuries may be missed on MRI because of the apparent continuity of nonfunctional PCL fibers. Posterior tibial translation (PTT) of the medial compartment has been identified as a potential secondary finding of PCL tear on routine MRI. Purpose/Hypothesis: The purpose of this study was to evaluate the sensitivity of PTT on MRI associated with PCL injuries and compare it with the sensitivity of a radiologist's MRI interpretation with preoperative posterior knee stress radiographs as the gold standard. Our hypothesis was that the MRI measurement of PTT of the medial compartment would improve diagnostic sensitivity as compared with the diagnosis made by the interpreting radiologist's evaluation of the continuity of the PCL fibers for chronic and postrecostruction graft injuries. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2. METHODS: Cases of patients who underwent a primary or revision PCL reconstruction, without anterior cruciate ligament injury, by a single surgeon between 2010 and 2016 were retrospectively analyzed. Measurements of medial and lateral compartment PTT were performed with the MRI of PCL-injured cases and controls without clinical or MRI evidence of ligamentous injury. The sensitivity of this technique was compared with the preoperative MRI diagnosis determined by review of the musculoskeletal radiologist's report and confirmed by the gold standard of posterior knee stress radiographs. The sensitivity of medial compartment PTT was determined by receiver operator characteristic (ROC) analysis and compared with the MRI sensitivity for chronic PCL and PCL graft tears. RESULTS: One hundred patients (80 males and 20 females) with a mean age of 31.1 years (range, 15-66 years) met the inclusion criteria: 57 acute primary tears, 32 chronic primary, and 11 PCL graft tears. MRI sensitivity was 100% for acute primary PCL tears, 62.5% for chronic primary PCL tears, and 18.1% for PCL graft tears. There were significant differences in medial compartment PTT on MRI for acute versus chronic injuries ( P = .025) and acute versus graft injuries ( P = .007). ROC curve analysis indicated that the most accurate cutoff point for the detection of chronic PCL tears was 2.0 mm of medial compartment PTT on MRI, with a sensitivity and specificity of 0.80 and 0.89, respectively. For PCL graft injuries, the ROC curve indicated that the most accurate medial compartment PTT cutoff for the detection of PCL graft failure was 3.6 mm (sensitivity, 0.92; specificity, 0.72). CONCLUSION: MRI evaluation of the PCL fibers had poor sensitivity for chronic PCL tears and PCL reconstruction graft tears. The sensitivity for diagnosing chronic PCL tears and PCL reconstruction graft failures was improved by measuring posteromedial tibial translation. PMID- 29028357 TI - Folate-PEG-NOTA-Al18F: A New Folate Based Radiotracer for PET Imaging of Folate Receptor-Positive Tumors. AB - The folate receptor (FR) has been established as a promising target for imaging and therapy of cancer (FR-alpha), inflammation, and autoimmune diseases (FR beta). Several folate based PET radiotracers have been reported in the literature, but an 18F-labeled folate-PET imaging agent with optimal properties for clinical translation is still lacking. In the present study, we report the design and preclinical evaluation of folate-PEG12-NOTA-Al18F (1), a new folate PET agent with improved potential for clinical applications. Radiochemical synthesis of 1 was achieved via a one-pot labeling process by heating folate PEG12-NOTA in the presence of in situ prepared Al18F for 15 min at 105 degrees C, followed by HPLC purification. Specific binding of 1 to FR was evaluated on homogenates of KB (FR-positive) and A549 (FR-deficient) tumor xenografts in the presence and absence of excess folate. In vivo tumor imaging with folate-PEG12 NOTA-Al18F was compared to imaging with 99mTc-EC20 using nu/nu mice bearing either KB or A549 tumor xenografts. Specific accumulation of 1 in tumor and other tissues was assessed by high-resolution micro-PET and ex vivo biodistribution in the presence and absence of excess folate. Radiosynthesis of 1 was accomplished within ~35 min, affording pure radiotracer 1 in 8.4 +/- 1.3% (decay corrected) radiochemical yield with ~100% radiochemical purity after HPLC purification and a specific activity of 35.8 +/- 15.3 GBq/mmol. Further in vitro and in vivo examination of 1 demonstrated highly specific FR-mediated uptake in FR+ tumor, with Kd of ~0.4 nM (KB), and reduced accumulation in liver. Given its facile preparation and improved properties, the new radiotracer, folate-PEG12-NOTA-Al18F (1), constitutes a promising tool for identification and classification of patients with FR overexpressing cancers. PMID- 29028360 TI - A Predictive Model for the Growth of Listeria monocytogenes in Commercial Blue Crab (Callinectes sapidus). AB - During the processing and handling of commercial blue crab (Callinectes sapidus), Listeria monocytogenes can potentially contaminate cooked meat and grow to hazardous levels. To manage this risk, predictive models are useful tools for designing and implementing preventive controls; however, no model specific for blue crab meat has been published or evaluated. In this study, a cocktail of L. monocytogenes strains was added to pasteurized blue crab meat, which was incubated at storage temperatures from 0 to 35 degrees C. At selected time intervals, L. monocytogenes was enumerated by direct plating onto modified Oxford agar. A primary model was fitted to kinetic data to estimate the lag-phase duration (LPD) and growth rate (GR). Listeria monocytogenes replicated from 0 to 35 degrees C, with GR ranging from 0.004 to 0.518 log CFU/h. Overall, the LPD decreased with increasing temperature, displaying a maximum value of 187 h at 0 degrees C; however, this trend was not consistent. The LPD was not detected at 10 degrees C, and it occurred inconsistently from trial to trial. A secondary GR model (R2 = 0.9892) for pasteurized crab meat was compared with the L. monocytogenes GR in fresh crab meat, demonstrating bias and accuracy factors of 0.98 and 1.36, respectively. The model estimates varied from other published data and models, especially at temperatures >=5 degrees C, supporting the need for a specific predictive tool for temperature deviations. PMID- 29028359 TI - Complex interaction between circadian rhythm and diet on bile acid homeostasis in male rats. AB - Desynchronization between the master clock in the brain, which is entrained by (day) light, and peripheral organ clocks, which are mainly entrained by food intake, may have negative effects on energy metabolism. Bile acid metabolism follows a clear day/night rhythm. We investigated whether in rats on a normal chow diet the daily rhythm of plasma bile acids and hepatic expression of bile acid metabolic genes is controlled by the light/dark cycle or the feeding/fasting rhythm. In addition, we investigated the effects of high caloric diets and time restricted feeding on daily rhythms of plasma bile acids and hepatic genes involved in bile acid synthesis. In experiment 1 male Wistar rats were fed according to three different feeding paradigms: food was available ad libitum for 24 h (ad lib) or time-restricted for 10 h during the dark period (dark fed) or 10 h during the light period (light fed). To allow further metabolic phenotyping, we manipulated dietary macronutrient intake by providing rats with a chow diet, a free choice high-fat-high-sugar diet or a free choice high-fat (HF) diet. In experiment 2 rats were fed a normal chow diet, but food was either available in a 6-meals-a-day (6M) scheme or ad lib. During both experiments, we measured plasma bile acid levels and hepatic mRNA expression of genes involved in bile acid metabolism at eight different time points during 24 h. Time-restricted feeding enhanced the daily rhythm in plasma bile acid concentrations. Plasma bile acid concentrations are highest during fasting and dropped during the period of food intake with all diets. An HF-containing diet changed bile acid pool composition, but not the daily rhythmicity of plasma bile acid levels. Daily rhythms of hepatic Cyp7a1 and Cyp8b1 mRNA expression followed the hepatic molecular clock, whereas for Shp expression food intake was leading. Combining an HF diet with feeding in the light/inactive period annulled CYp7a1 and Cyp8b1 gene expression rhythms, whilst keeping that of Shp intact. In conclusion, plasma bile acids and key genes in bile acid biosynthesis are entrained by food intake as well as the hepatic molecular clock. Eating during the inactivity period induced changes in the plasma bile acid pool composition similar to those induced by HF feeding. PMID- 29028361 TI - New Findings on Biological Actions and Clinical Applications of Royal Jelly: A Review. AB - Royal jelly (RJ) is a natural bee product with great potential for use in medicine. The chemical composition of RJ indicates the presence of various bioactive substances including 10-hydroxydecanoic acid and 24 methylenecholesterol. In addition, a number of biological and pharmacological activities of RJ have been documented. The aim of this study was to review the biological and medical effects of RJ. The search was conducted in articles from electronic and scientific literature databases such as Pub Med, Science Direct, Scopus, Medline, and ISI Web of Science published from 1990 to 2017 using keywords of pharmacological, biological, and clinical effects and royal jelly. Data were chosen after the primary survey of all abstracts and selected full articles. Comparison among related data was done by the authors. Literature has shown that RJ possesses many beneficial effects on biological systems. For example, the therapeutic uses of RJ have been reported in several diseases such as hypercholesterolemia, diabetes, hypertension, and cancers. It was also found to possess neurotrophic, hypotensive, immunomodulatory, antimicrobial, antioxidant, antidiabetic, antihypercholesterolemic, antitumor, and anti inflammatory effects. Owing to the broad spectrum of biological effects and valuable clinical trials, evaluating the beneficial pharmaceutical effects of RJ in animal and human models seems to be important. PMID- 29028362 TI - The Current Socio-Political Climate and Psychological Distress Among Transgender People. PMID- 29028363 TI - SUMMARY: GLIDING THROUGH THE GOLDEN YEARS GRACEFULLY. PMID- 29028364 TI - The Effectiveness of Empowerment Program on Increasing Self-Esteem, Learned Resourcefulness, and Coping Ways in Women Exposed to Domestic Violence. AB - This study was conducted to assess the effectiveness of empowerment program on increasing self-esteem, learned resourcefulness, and coping ways in women exposed to domestic violence. This experimental study was conducted between October 2012 and June 2014 in the obstetrics and gynaecology departments of the Giresun Maternity Hospital, and at the Family Counseling Center (FCC) in Turkey. Sixty women who agreed to participate in the study were randomly assigned into two groups. Data were collected by the Coopersmith Self-Esteem Inventory (SEI), The Rosenbaum's Learned Resourcefulness Scale (RLRS), and the Ways of Coping Inventory (WCI). The assessment of the women before and after the empowerment program showed that women in the intervention group showed significant improvements in the SEI, RLRS, and WCI scores compared with controls. These results suggest that the empowerment program is an effective practice for increasing the levels of self-esteem, learned resourcefulness, and coping ways of women exposed to domestic violence. PMID- 29028365 TI - Exploring Self-Care and Preferred Supports for Adult Parents in Recovery from Substance Use Disorders: Qualitative Findings from a Feasibility Study. AB - Very little is known about the self-care behaviors (SCB) that adult parents employ and the preferred supports they utilize to maintain their recovery from substance use disorders (SUD) while also parenting their children. This study used a qualitative descriptive approach to explore perceptions of self-care and parenting to inform future self-care interventions for parents in early recovery. Nineteen mothers and fathers of at least one child between the ages of 6-18 were interviewed by telephone about parental self-care practices while in recovery from SUD, recovery management, and preferred supports in the community. Participants described the experience of parenting as challenging, with variations in the level of support and resources. Self-care included meaningful connection with recovery support and children, taking care of physical health, maintaining spirituality, healthy eating, exercise, journaling, continuing education, staying busy, sponsorship, establishing boundaries, self-monitoring, abstinence, and dealing with destructive emotions. Participants reported SCB as being a critical component of their ongoing recovery and their parenting practices, though differences in SCB by gender and for minorities require further exploration. Parental gains were perceived as benefits of SCB that minimized the negative impact of prior parental drug use on their children. PMID- 29028366 TI - Synthesis, modeling and biological evaluation of hybrids from pyrazolo[1,5c]pyrimidine as antileishmanial agents. AB - AIM: A new series of pyrazolo[1,5-c]pyrimidines were synthesized by different hybridization strategies. METHODOLOGY: All structures were confirmed by IR, 1H, 13C, 1H-13C heteronuclear multiple-quantum correlation (HMQC) spectra and microanalysis. They were evaluated for their in vitro antileishmanial activity against miltefosine and amphotericin B deoxycholate as reference drugs. RESULTS: The most active compounds 2a and 9a demonstrated superior potencies to miltefosine by ten- and six-fold, respectively, for the promastigote form, and by 5.5-fold for the amastigote form. Their binding scenario to Leishmania major pteridine reductase was rationalized by docking experiments. In addition, all compounds were safe for the experimental animals orally up to 150 mg/kg and parenterally up to 75 mg/kg. CONCLUSION: This study provides novel chemotype class for antileishmanial activity. [Formula: see text]. PMID- 29028367 TI - Philip Hillkowitz The "Granddaddy of Medical Technologists" and Cofounder of the American Society for Clinical Pathologists and the Jewish Consumptives' Relief Society. AB - CONTEXT: - In the early 20th century, the future of hospital-based clinical pathology practice was uncertain and this situation led to the formation of the American Society for Clinical Pathologists in 1922. Philip Hillkowitz, MD, and Ward Burdick, MD, were its cofounders. No biography of Hillkowitz exists. OBJECTIVE: - To explore the life, beliefs, and accomplishments of Philip Hillkowitz. DESIGN: - Available primary and secondary historical sources were reviewed. RESULTS: - Hillkowitz, the son of a Russian rabbi, immigrated to America as an 11-year-old child in 1885. He later attended medical school in Cincinnati, Ohio, and then moved to Colorado, where he began his clinical practice, which transitioned into a clinical pathology practice. In Denver, he met Charles Spivak, MD, another Jewish immigrant and together they established the Jewish Consumptives' Relief Society, an ethnically sensitive tuberculosis sanatorium that flourished in the first half of the 20th century because of its national fundraising network. In 1921, Hillkowitz and Burdick, also a Denver based pathologist, successively organized the pathologists in Denver, followed by the state of Colorado. Early the next year, they formed the American Society for Clinical Pathologists (ASCP). Working with the American College of Surgeons, the ASCP put hospital-based practice of clinical pathology on solid footing in the 1920s. Hillkowitz then established and oversaw the ASCP Board of Registry of Medical Technologists. CONCLUSIONS: - Philip Hillkowitz changed the directions of clinical pathology and tuberculosis treatment in 20th century America, while simultaneously serving as a successful ethnic power broker within both the American Jewish and Eastern European immigrant communities. PMID- 29028368 TI - A Window Into Clinical Next-Generation Sequencing-Based Oncology Testing Practices. AB - CONTEXT: - Detection of acquired variants in cancer is a paradigm of precision medicine, yet little has been reported about clinical laboratory practices across a broad range of laboratories. OBJECTIVE: - To use College of American Pathologists proficiency testing survey results to report on the results from surveys on next-generation sequencing-based oncology testing practices. DESIGN: - College of American Pathologists proficiency testing survey results from more than 250 laboratories currently performing molecular oncology testing were used to determine laboratory trends in next-generation sequencing-based oncology testing. RESULTS: - These presented data provide key information about the number of laboratories that currently offer or are planning to offer next-generation sequencing-based oncology testing. Furthermore, we present data from 60 laboratories performing next-generation sequencing-based oncology testing regarding specimen requirements and assay characteristics. The findings indicate that most laboratories are performing tumor-only targeted sequencing to detect single-nucleotide variants and small insertions and deletions, using desktop sequencers and predesigned commercial kits. Despite these trends, a diversity of approaches to testing exists. CONCLUSIONS: - This information should be useful to further inform a variety of topics, including national discussions involving clinical laboratory quality systems, regulation and oversight of next-generation sequencing-based oncology testing, and precision oncology efforts in a data driven manner. PMID- 29028369 TI - Toll-like receptors: Significance, ligands, signaling pathways, and functions in mammals. AB - This review attempts to cover the implication of the toll-like receptors (TLRs) in controlling immune functions with emphasis on their significance, function, regulation and expression patterns. The tripartite TLRs are type I integral transmembrane receptors that are involved in recognition and conveying of pathogens to the immune system. These paralogs are located on cell surfaces or within endosomes. The TLRs are found to be functionally involved in the recognition of self and non-self-antigens, maturation of DCs and initiation of antigen-specific adaptive immune responses as they bridge the innate and adaptive immunity. Interestingly, they also have a significant role in immunotherapy and vaccination. Signals generated by TLRs are transduced through NFkappaB signaling and MAP kinases pathway to recruit pro-inflammatory cytokines and co-stimulatory molecules, which promote inflammatory responses. The excess production of these cytokines leads to grave systemic disorders like tumor growth and autoimmune disorders. Hence, regulation of the TLR signaling pathway is necessary to keep the host system safe. Many molecules like LPS, SOCS1, IRAK1, NFkappaB, and TRAF3 are involved in modulating the TLR pathways to induce appropriate response. Though quantification of these TLRs helps in correlating the magnitude of immune response exhibited by the animal, there are several internal, external, genetic and animal factors that affect their expression patterns. So it can be concluded that any identification based on those expression profiles may lead to improper diagnosis during certain conditions. PMID- 29028370 TI - Is it Important to Talk About Technologies with Eating Disorder Clients? The Health-Care Professional Perspective. AB - Nowadays, the use of digital technology is an important issue that should be addressed during the treatment of people who have eating disorders. The involvement or absence of this issue reflects the understanding, experience, and atttude of health-care professionals toward their clients' use of technology. The aim of the present study was to investigate the perceptions of health-care professionals and their assessment of their clients' usage of digital technology while developing strategies for treatment. Semistructured interviews with 30 professionals were performed from October 2015 to June 2016 and a thematic analysis was used to analyze the data. The health-care professionals' views could be summarized in three thematic groups: (1) technology use is not relevant for the cooperation; (2) technology use is relevant for the cooperation and addressed generally; and (3) technology use is relevant for the cooperation and addressed specifically. The results are discussed in relation to the theoretical model presented by Rodgers about the impact of technology on disordered eating behaviors and the implications for practice. PMID- 29028371 TI - From Social Media to Mainstream News: The Information Flow of the Vaccine-Autism Controversy in the US, Canada, and the UK. AB - Despite increasing warnings about inaccurate information online, little is known about how social media contribute to the widespread diffusion of unverified health information. This study addresses this issue by examining the vaccine autism controversy. By looking into a large dataset of Twitter, Reddit posts, and online news over 20 months in the US, Canada, and the UK, our time-series analysis shows that Twitter drives news agendas, and Reddit follows news agendas regarding the vaccine-autism debate. Additionally, the results show that both Twitter and Reddit are more likely to discuss the vaccine-autism link compared to online news content. PMID- 29028372 TI - The Effect of Latanaprost on Intraocular Inflammation and Macular Edema. AB - There is debate concerning whether the use of Latanoprost in early postoperative period of cataract surgery and in glaucoma patients with uveitis as it may aggravate the inflammation and results in macular edema (ME), because of blood ocular barrier disruption. However, there is no solid evidence for disruption of blood-ocular barrier with Latanoprost and aggravation of uveitis or ME formation. Similar to pseudophakic ME, the imaging ME in cases claimed to be secondary to Latanoprost is greater than clinical ME, happens mostly in complicated surgeries, and the vast majority resolve within weeks to months with using a non-steroidal anti-inflammatory drug. The current literature suggests that Latanoprost can be used in patients with uveitis and early after cataract surgery with or without concomitant topical non-steroidal anti-inflammatory drugs that are currently used by many ophthalmologists as a preventive measure for ME even in non-glaucoma uncomplicated cataract surgeries. PMID- 29028373 TI - Pulmonary Hypertension in Children. PMID- 29028374 TI - Recognizing Workplace Factors Contributing to Interstitial Lung Disease. PMID- 29028376 TI - Interprofessional Pulmocheck care pathway: An innovative approach to managing pediatric asthma care in the Netherlands. AB - OBJECTIVES: Under-diagnosis and suboptimal asthma control in children persists. An innovative care pathway was developed by a hospital department of pediatrics with the aim to detect pulmonary problems in children and provide appropriate treatment possibilities through systematic feedback towards the referring primary care physician. Primary care physicians can use this pathway to refer children with asthma-like symptoms for a one-day assessment. Goals are to measure the usage of the pathway by primary care general practitioners (GPs), the outcomes in terms of new diagnoses of asthma, the reduction in regular referrals, generated recommendations/therapy and the adequacy of asthma follow-up. METHODS: We collected all feedback letters sent to the GP concerning children who underwent the Pulmocheck in 2010, 2011 and 2012. Furthermore, all GPs, who had referred a child to the Pulmocheck in this period and that subsequently was diagnosed with asthma and was further managed in primary care, were sent a follow-up questionnaire in 2014. RESULTS: There were 121 referrals from 51 GPs in 3 years to this pathway. In 59.5% of these referrals a new diagnosis of asthma was established. In 90.9% one or more changes in clinical management were advised. The response rate to the follow-up questionnaires was 65.7% of which 4.8% of the children with new established asthma were reviewed four times or more in the follow-up period, 17.4% two times, 65.2% once, and in 8.7% were not followed. CONCLUSIONS: The specialty pediatric asthma care pathway revealed a high number of children with newly diagnosed asthma, but was also helpful to exclude this diagnosis. However, the referral rate of GPs to this pathway was low, but in the children, that were referred several changes in the clinical management were advised and the frequency of monitoring of the children with diagnosed asthma was not in accordance with the asthma guidelines. PMID- 29028375 TI - Health Disparities in Patients with Pulmonary Arterial Hypertension: A Blueprint for Action. An Official American Thoracic Society Statement. AB - BACKGROUND: Health disparities have a major impact in the quality of life and clinical care received by minorities in the United States. Pulmonary arterial hypertension (PAH) is a rare cardiopulmonary disorder that affects children and adults and that, if untreated, results in premature death. The impact of health disparities in the diagnosis, treatment, and clinical outcome of patients with PAH has not been systematically investigated. OBJECTIVES: The specific goals of this research statement were to conduct a critical review of the literature concerning health disparities in PAH, identify major research gaps and prioritize direction for future research. METHODS: Literature searches from multiple reference databases were performed using medical subject headings and text words for pulmonary hypertension and health disparities. Members of the committee discussed the evidence and provided recommendations for future research. RESULTS: Few studies were found discussing the impact of health disparities in PAH. Using recent research statements focused on health disparities, the group identified six major study topics that would help address the contribution of health disparities to PAH. Representative studies in each topic were discussed and specific recommendations were made by the group concerning the most urgent questions to address in future research studies. CONCLUSIONS: At present, there are few studies that address health disparities in PAH. Given the potential adverse impact of health disparities, we recommend that research efforts be undertaken to address the topics discussed in the document. Awareness of health disparities will likely improve advocacy efforts, public health policy and the quality of care of vulnerable populations with PAH. PMID- 29028377 TI - Randomized trial of electrodynamic microneedle combined with 5% minoxidil topical solution for the treatment of Chinese male Androgenetic alopecia. AB - BACKGROUND: In treating androgenetic alopecia, 5% minoxidil is a commonly used topical drug. By using electrodynamic microneedle at the same time may increase absorption of minoxidil and further stimulate hair growth. OBJECTIVE: A 24-week, randomized, evaluator blinded, comparative study was performed to evaluate the efficacy of treating Chinese male androgenetic alopecia using microneedle combined with 5% minoxidil topical solution. METHODS: Randomized subjects received topical 5% minoxidil (group 1, n = 20), local electrodynamic microneedle treatments (group 2, n = 20), or local electrodynamic microneedle treatments plus topical 5% minoxidil (group 3, n = 20). A total of 12 microneedle treatments were performed every 2 weeks with 2ml 5% minoxidil delivery in group 3 during each microneedle treatment. Patient receiving topical 5% minoxidil applied 1 ml of the solution twice daily over the course of the study. A total of 60 Chinese male subjects with Norwood-Hamilton type III-VI androgenetic alopecia were treated. RESULTS: The mean improvement in total hair density from baseline to 24 weeks was 18.8/cm2 in group 1, 23.4/cm2 in group 2, and 38.3/cm2 in group 3. The hair growth in the 3 groups was significantly different (P = 0.002), but there were no significant differences in toxicity found between the 3 groups. CONCLUSIONS: Treatment with microneedle plus topical 5% minoxidil was associated with the best hair growth. PMID- 29028378 TI - From the Editor-in-Chief's Desk. PMID- 29028380 TI - Electrospray ionization mass spectrometric study of thallium complexes with nucleosides. AB - The complexes between Tl+, K+, and nucleosides were studied by using electrospray ionization mass spectrometry. It was found that for complexes of 1:1 stoichiometry, thallium complexes with cytidine were the most abundant and thallium complexes with guanosine were the second most abundant ones. The relative abundances of cytidine-Tl+ to cytidine-K+ complexes depended on stoichiometry (at higher stoichiometry the potassium complexes were more abundant). In other words, the relative affinity of Tl+ and K+ to form cytidine complexes depends on the stoichiometry of the formed complexes. Guanosine-Tl+ complexes were more abundant than guanosine-K+ complexes, irrespective of stoichiometry. Both guanosine tetramer and mixed cytidine/guanosine tetramer were more abundant when they were stabilized by thallium than potassium. Therefore, Tl+ may affect the K+ stabilization of these tetramers. PMID- 29028381 TI - Dependence of matrix effect on ionization polarity during LC-ESI-MS analysis of derivatized amino acids in some natural samples. AB - Matrix effect, the influence of co-eluting components on the ionization efficiency of the analyte, affects the trueness and precision of the LC-ESI-MS analysis. Derivatization can reduce or eliminate matrix effect, for example, diethyl ethoxymethylenemalonate (DEEMM) derivatives have shown less matrix effect compared to other derivatives. Moreover, the use of negative ion mode can further reduce matrix effect. In order to investigate the combination of derivatization and different ionization modes, an LC-ESI-MS/MS method using alternating positive/negative ion mode was developed and validated. The analyses in positive and negative ion modes had comparable limit of quantitation values. The influence of ESI polarity on matrix effect was investigated during the analysis of 22 DEEMM derivatized amino acids in herbal extracts and honeys. Sample dilution approach was used for the evaluation of the presence of matrix effect. Altogether, 4 honeys and 11 herbal extracts were analyzed, and the concentrations of 22 amino acids in the samples are presented. In the positive ion mode, matrix effect was observed for several amino acid derivatives and the matrix effect was stronger in honey samples compared to the herbal extracts. The negative ion mode was free from matrix effect, with only few exceptions in honeys (average relative standard deviation over all analytes and matrices was 8%; SD = 7%). The matrix effect was eliminated in the positive ion mode by sample dilution and agreement between concentrations from the two ion modes was achieved for most amino acids. In conclusion, it was shown that the combination of derivatization and negative ion mode can be a powerful tool for minimizing matrix effect in more complicated applications. PMID- 29028382 TI - Simultaneous determination of metolazone and valsartan in plasma by on-line SPE coupled with liquid chromatography/tandem mass spectrometry. AB - Combination of metolazone (0.5 mg) and valsartan (80 mg) has been verified as a promising therapy treatment for hypertension. In order to facilitate to pharmacokinetic research, it needs a method for the simultaneously determination of metolazone and valsartan in biological samples. However, there are no relative reports so far. In order to facilitate to pharmacokinetic research, an on-line solid phase extraction coupled with liquid chromatography-tandem mass spectrometry method for the simultaneous determination of metolazone and valsartan in beagle dog plasma was developed and validated in this study. An on line solid phase extraction column Retain PEP Javelin (10 mm * 2.1 mm) was used to remove impurities in plasma samples. The metolazone, valsartan and internal standard (losartan) were separated on a Poroshell 120 SB-C18 column (4.6 mm * 50 mm * 2.7 um) with a gradient elution procedure. Acidified acetonitrile/water mixture was used as a mobile phase. The selected multiple-reaction monitoring mode in positive ion was performed and the parent to the product transitions m/z 366/259, m/z 436.2/291 and m/z 423.4/207 were used to measure the metolazone, valsartan and losartan. The method was linear over the range of 0.1-100 ng/mL and 1-1000 ng/mL for metolazone and valsartan, respectively. This method was validated in terms of specificity, linearity, sensitivity, precision, accuracy, matrix effect, and stability and then successfully applied to pharmacokinetic studies of the metolazone and valsartan combination tablets in beagle dogs. PMID- 29028384 TI - Effect of metal surfaces on matrix-assisted laser desorption/ionization analyte peak intensities. AB - Different metal surfaces in the form of transmission electron microscope grids were examined as support surfaces in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry with a view towards enhancement of peptide signal intensity. The observed enhancement between 5-fold and 20-fold relative to the normal stainless steel slide was investigated by applying the thermal desorption model for matrix-assisted laser desorption/ionization. A simple model evaluates the impact that the thermal properties of the metals have on the ion yield of the analyte. It was observed that there was not a direct, or strong, correlation between the thermal properties of the metals and the corresponding ion yield of the peptides. The effects of both fixed and variable laser irradiances versus ion yield were also examined for the respective metals studied. In all cases the use of transmission electron microscope grids required much lower laser irradiances in order to generate similar peak intensities as those observed with a stainless steel surface. PMID- 29028383 TI - Rapid detection of undesired cosmetic ingredients by matrix-assisted laser desorption ionization time-of-flight mass spectrometry. AB - In recent years, cosmetic industry profits soared due to the widespread use of cosmetics, which resulted in illicit manufacturers and products of poor quality. Therefore, the rapid and accurate detection of the composition of cosmetics has become crucial. At present, numerous methods, such as gas chromatography and liquid chromatography-mass spectrometry, were available for the analysis of cosmetic ingredients. However, these methods present several limitations, such as failure to perform comprehensive and rapid analysis of the samples. Compared with other techniques, matrix-assisted laser desorption ionization time-of-flight mass spectrometry offered the advantages of wide detection range, fast speed and high accuracy. In this article, we briefly summarized how to select a suitable matrix and adjust the appropriate laser energy. We also discussed the rapid identification of undesired ingredients, focusing on antibiotics and hormones in cosmetics. PMID- 29028385 TI - Computation of stability regions for the cylindrical ion trap with no octupole electric field as compared to the corresponding results of the Paul trap. AB - The cylindrical ion trap is analyzed so that the octupole component of the electric field inside the trap is set to zero. As a consequence, the diameter to height ratio is computed to be 1.20 for which the quadrupole component of the cylindrical ion trap is dominant. Afterwards, it is concluded that the electric potential inside the trap as well as the corresponding stability regions are very similar to those obtained for an ideal Paul trap with pure quadrupole electric field. Furthermore, we drew a conclusion that the stability diagrams of the cylindrical ion trap without octupole term and the stability diagrams of the Paul trap have 5.6%, 3.7%, and 2.9% discrepancy for the first, second, and third stability diagrams, respectively. It should be noted that, expansion of the electric potential inside the cylindrical ion trap in terms of the multipole electric field components and making the advantages of the octupole term elimination has not been reported in the literature previously. PMID- 29028386 TI - Applications of the fractional calculus to study the physical theory of ion motion in a quadrupole ion trap. AB - In this article, fractional calculus has been applied to study the motion of ions in a three-dimensional radio frequency quadrupole ion trap; we have called this arrangement a fractional quadrupole ion trap. The main purpose of the article is to show that by controlling the fractional parameter of a trapped ion, one can gain a more efficient mass separation. In what follows, we will see that with decreasing the fractional parameter, we can achieve a smaller first stability region. Note that a small stability diagram will result in a good and acceptable mass separation. Various methods can be proposed to obtain a desired ion acceleration with a sufficient accuracy for good mass separation, which is similar to the one obtained by a fractional ion trap. Some of these methods are using the effects of a damping force, a magnetic field or both on the confinement of particles in the quadrupole ion trap. The first stability regions are plotted for all of the aforementioned methods, and simulation results are provided to compare them with those for the fractional case. PMID- 29028387 TI - Two possible improvements for mass spectrometry analysis of intact biomolecules. AB - The goals of our study were to investigate abilities of two approaches to eliminate possible errors in electrospray mass spectrometry measurements of biomolecules. Passing of a relatively dense supersonic gas jet through ionization region followed by its hitting the spray of the analyzed solution in low vacuum may be effective to keep an initial biomolecule structure in solution. Provided that retention of charge carriers for some sites in the biomolecule cannot be changed noticeably in electrospray ion source, decomposition and separation of charge-state distributions of electrosprayed ions may give additional information about native structure of biomolecules in solution. PMID- 29028388 TI - Feature selection algorithm for spray-from-tissue mass spectrometry. AB - Detection of the brain tumor margins is one of the most significant problems in neurosurgery. Several mass spectrometry-based approaches have been proposed recently for tumor boundary detection. One of them, spray from tissue does not require sample preparation but needs special algorithms for analysis of its spectra. Here we proposed the feature selection algorithm designed for analysis of spray-from-tissue data. PMID- 29028389 TI - Investigation of the ozonation products of natural complex mixtures using Fourier transform ion cyclotron resonance mass spectrometry. AB - Natural complex mixtures such as oil and dissolved organic matter play an important role in the economy and in the global carbon cycle. One of the most promising approaches for the investigation of the chemical structure of such substances is the combination of the high-resolution mass spectrometry and selective chemical reactions. Here, we report the investigation of the ozonation products of natural complex mixtures using Fourier transform ion cyclotron resonance mass spectrometry. Ozonation of crude oil results in the appearance of the new compounds with high content (up to 9 atom) of oxygen. Isotopic exchange reaction showed that those oxygen stem from the carbonyl groups. Ozonation of the dissolved organic matter leads to the destruction of the substance and shift towards the region of the saturated compounds. PMID- 29028390 TI - High-resolution mass spectra processing for the identification of different pathological tissue types of brain tumors. AB - The purpose of the work is to demonstrate the possibilities of identifying the different types of pathological tissue identification directly through tissue mass spectrometry. Glioblastoma parts dissected during neurosurgical operation were investigated. Tumor fragments were investigated by the immunohistochemistry method and were identified as necrotic tissue with necrotized vessels, necrotic tissue with tumor stain, tumor with necrosis (tumor tissue as major), tumor, necrotized tumor (necrotic tissues as major), parts of tumor cells, boundary brain tissue, and brain tissue hyperplasia. The technique of classification of tumor tissues based on mass spectrometric profile data processing is suggested in this paper. Classifiers dividing the researched sample to the corresponding tissue type were created as a result of the processing. Classifiers of necrotic and tumor tissues are shown to yield a combined result when the tissue is heterogeneous and consists of both tumor cells and necrotic tissue. PMID- 29028391 TI - A new approach to improving the accuracy of elemental analysis in laser mass spectrometry. AB - It is shown that the main reason affecting the accuracy and reproducibility of the elemental analysis of solids with a laser source of ions is the difference in the ionization cross sections of different elements in the generation of laser plasma. Computer modeling was carried out for the evaporation of the sample and generation of laser plasma at different values of laser power density. The aim of modelling was to determine the cause of the low accuracy of analysis by direct selection of ions from the plasma. The researches have shown that we cannot get satisfactory accuracy of analysis using analytical signal formed only on the base of single-charged ions. At the same time, in the formation of an analytical signal, as a sum of the intensities of the mass peaks of all charges of each element, the accuracy of the analysis does not depend either on the ionization cross section or on the nonreproducibility of the laser radiation power. It is shown that this approach completely eliminates the "matrix effect." PMID- 29028392 TI - Application of selected reaction monitoring and parallel reaction monitoring for investigation of HL-60 cell line differentiation. AB - Targeted mass spectrometry represents a powerful tool for investigation of biological processes. The convenient approach of selected reaction monitoring using stable isotope-labeled peptide standard (SIS) is widely applied for protein quantification. Along with this method, high-resolution parallel reaction monitoring has been increasingly used for protein targeted analysis. Here we applied two targeted approaches (selected reaction monitoring with SIS and label free parallel reaction monitoring) to investigate expression of 11 proteins during all-trans retinoic acid-induced differentiation of HL-60 cells. In our experiments, we have determined the proteins expression ratio at 3, 24, 48, and 96 h after all-trans retinoic acid treatment in comparison with 0 h, respectively. Expression profiles of four proteins (VAV1, PRAM1, LYN, and CEBPB) were highly correlated ( r > 0.75) and FGR expression was detected on proteome level starting from 24 h by both techniques. For prominent differences (fold change >= 2) label-free parallel reaction monitoring is not inferior to selected reaction monitoring with isotopically labeled peptide standards. Differentially expressed proteins, that have been determined in our study, can be considered as potential drug targets for acute myeloid leukemia (AML) treatment. PMID- 29028393 TI - Editorial. PMID- 29028394 TI - Active sampling system for gas-phase analyzers. AB - The approaches for increasing a contact-free sampling distance up to 40 cm for a field asymmetric ion mobility spectrometer were investigated and implemented by use both the vortex flow made by a rotating impeller and the laser desorption of traces of low volatile explosives. The sampling device for a laser-based field asymmetric ion mobility spectrometer including a high-speed rotating impeller was designed and built with help of computer simulation of vortex and analytical flows. The dependence of a signal of trinitrotoluene vapors on a rotational speed of an impeller was obtained. The optimization of analytical flow was performed. The effective sampling distance is increased up to 28 cm for trinitrotoulene vapors detection by a field asymmetric ion mobility spectrometer equipped with a rotating impeller. The distance can be increased up to 40 cm using laser irradiation of objects with traces of explosives. It was shown that under ambient conditions the efficient desorption of low-volatile explosives is achieved at laser intensity 107 W/cm2, wavelength lambda = 266 nm, pulse energy about 1 mJ and pulse frequency not less than 10 Hz. PMID- 29028395 TI - Mass selective laser cooling of 229Th3+ in a multisectional linear Paul trap loaded with a mixture of thorium isotopes. AB - We consider an experiment on trapping and laser cooling of 229Th3+ ions in a linear Paul trap in the presence of undesirable impurities such as ions of the radioactive isotope 228Th3+. We suggest a method of separating these impurities by means of selective laser cooling utilizing the isotope shift of cooling transitions in 229Th3+ and 228Th3+ ions. According to our estimation, the isotope shift is equal to 3.4 GHZ and makes laser separation of these isotopes possible. PMID- 29028396 TI - Laser-stimulated desorption of organic molecules from surfaces, as a method of increasing the efficiency of ion mobility spectrometry analysis. AB - Application of laser-induced desorption was investigated as a method of increasing the efficiency of gas phase analyzers on principles of field asymmetric ion mobility spectrometry. Mass spectrometric data of investigations of laser desorption of pentaerythritoltetranitrate molecules and cyclotetramethylenetetranitramine molecules from quartz substrate under vacuum were obtained. Laser sources a Nd3+:YAG with nanosecond pulse duration (lambda = 532 nm) and a continuous wave diode laser (lambda = 440 nm) were used. It was shown that both laser sources have different desorption abilities. This is expressed in various time of appearance of desorbed products that is caused by different heating mechanisms of surface layer. The desorbed quantity under action of both laser sources exceeds the detection threshold for all modern gas phase analyzers. It should be noted that despite the presence of surface dissociation of explosives under laser radiation, the quantity of nondissociated molecules is large enough for detection by ion mobility and field asymmetric ion mobility spectrometers. The optimal parameters of laser radiation for effective removal (evaporation) molecules of low-volatile compounds from surfaces are defined. The conclusion about preferable use of a Nd3+:YAG laser for increasing the detection ability of detectors based on ion mobility spectrometry was made. PMID- 29028397 TI - Detection of gas traces using semiconductor sensors, ion mobility spectrometry, and mass spectrometry. AB - This article deals with the state-of-the-art instrumentation and application in the field of solid state gas sensorics, ion mobility spectrometry and mass spectrometry-related research for the detection and measurements of low gas and vapor concentrations. The advantages and disadvantages of gas-analytical devices and systems are discussed, as well as the possibilities of its complex and/or complementary applications. Ion mobility spectrometry-mass spectrometry and subsequent techniques based on solid-state gas sensors are proposed for planned medical study. PMID- 29028398 TI - A computer model of comprehensive modeling of the laser time-of-flight analyzer. AB - This article offers a new approach to computer modeling of time-of-flight analyzers of mass spectrometers. The main feature of the model is comprehensive tracking of the processes from the laser plasma generation until the final stage, on which the isotopic or elemental composition is determined for the analyzed solid sample. Apart from usual models based on SIMION-8 3D or similar software, this article proposes fundamentally new modeling stages. These stages are (1) generation and spread of laser plasma, (2) formation of the ion packages, (3) ion detection, and (4) formation and processing of the analytical signals. In order to provide consistent modeling of all the stages, special software units were developed. Program control of the analyzer ion optics (electrodes voltages) allows scan of mass spectra by ion energy. Additional complex of the programs provides simulation of mass spectra digitization, summation of digitized mass spectra for a wide range of variable parameters, and consideration of the discriminatory effects. According to the data, the software calculates ion optical characteristics of the analyzer and the analytical parameters of measurement results. PMID- 29028399 TI - Is myelin basic protein a potential biomarker of brain cancer? AB - Myelin basic protein is a potential biomarker for the central nervous system diseases in which the myelin sheath is destroyed. Using pseudo-selected reaction monitoring and the method of standard additions, we have measured the myelin basic protein level in the cerebrospinal fluid of patients with neurotrauma (n = 6), chronic neurodegenerative diseases (n = 2) and brain cancer (n = 5). Myelin basic protein was detected only in four out of five cerebrospinal fluid samples of patients with brain cancer. The cerebrospinal fluid myelin basic protein level ranged from 3.7 to 8.8 ng ml-1. We suggest that monitoring of myelin basic protein in cerebrospinal fluid can serve as a diagnostic test for the brain cancer. PMID- 29028400 TI - Label-free study of cosmonaut's urinary proteome changes after long-duration spaceflights. AB - During the entire time that cosmonauts stay on board the international space station, different extreme space flight factors affect their bodies. In order to find out what physiological changes occur under the influence of spaceflight, different parameters of the human body before and after flights are monitored. Analysis of the urine proteome is one of the most perspective non-invasive methods of condition monitoring. The aim of the study was to perform a comparative semi-quantitative label-free urine proteome analysis of samples collected from 21 cosmonauts before and after long-duration spaceflight at the international space station. For proteomic analysis, urine samples were collected from cosmonauts at three time periods: six months prior to the flight as a background, and on days 1 and 7 of the recovery period after landing. All probes were analyzed by LC-MS/MS, and 256 proteins were identified with more than one unique peptide. The core proteome consists of 50 proteins that are detected in more than 70% of the samples. Label-free semi-quantitative analysis enables us to find 20 proteins which were significantly changed on +1 day and +7 day with respect to background. Most of these proteins participate in the regulation of biological processes, in the regulation of the immune system and in intracellular processes also; some of these proteins are related with stress and response to stimulus. In conclusion, the proteomic analysis of cosmonauts' urine samples provides new data on the human body's adaptation to ground conditions after long duration spaceflight. PMID- 29028401 TI - Numerical simulation of ion transport in an atmosphere-to-vacuum interface taking into account gas dynamics and space charge. AB - A two-step approach was developed for the study of ion transport in an atmospheric pressure interface. In the first step, the flow in the interface was numerically simulated using the standard gas dynamic package ANSYS CFX 15.0. In the second step, the calculated fields of pressure, temperature, and velocity were imported into a custom-built software application for simulation of ion motion under the influence of both gas dynamic and electrostatic forces. To account for space charge effects in axially symmetric interfaces an analytical expression was used for the Coulomb force. For all other types of interfaces, an iterative approach for the Coulomb force computation was developed. The simulations show that the influence of the space charge is the main contributor to the loss of ion current in the heated capillary. In addition, the maximum ion current which can be transmitted through the heated capillary (0.58 mm inner diameter and 58.5 mm length) is limited to ~6 nA for ions with m/z = 508 Da and with reduced ion mobility 1.05 cm2V-1s-1. This limit remains practically constant and independent of the ion current at the entrance of the capillary. For a particular ion type, this limit depends on its m/z ratio and ion mobility. PMID- 29028402 TI - Effect of ion clouds micromotion on measured signal in Fourier transform ion cyclotron resonance: Computer simulation. AB - Particle-in-cell-based realistic simulation of Fourier transform ion cyclotron resonance experiments could be used to generate ion trajectories and a signal induced on the detection electrodes. It has been shown recently that there is a modulation of "reduced" cyclotron frequencies in ion cyclotron resonance signal caused by Coulomb interaction of ion clouds. In this work it was proposed to use this modulation in order to determine frequency difference between an ion of known m/z and all other ions generating signal in ion cyclotron resonance cell. It is shown that with an increase of number of ions in ion cyclotron resonance trap, the modulation index increases, which lead to a decrease in the accuracy of determination of peak intensities by super Fourier transform resolution methods such as filter diagonalization method. PMID- 29028403 TI - Laser ion mobility spectrometry in the detection of ultra-low quantities of explosives. AB - The paper presents the results of research and development of ion mobility spectrometer with laser ion sources for detecting ultra-low quantities of explosives in air. Particular attention is paid to the mechanisms of the formation of negative ions. It is shown that laser ionization with respect to ion mobility spectrometry provides an increase of sensitivity and selectivity of detection. The ion mobility spectra of the most common nitro explosives are investigated. The detection threshold for laser ion mobility spectrometer was reached at the level of 10-14 g/cm3 (for trinitrotoluene). PMID- 29028404 TI - Static harmonization of dynamically harmonized Fourier transform ion cyclotron resonance cell. AB - Static harmonization in the Fourier transform ion cyclotron resonance cell improves the resolving power of the cell and prevents dephasing of the ion cloud in the case of any trajectory of the charged particle, not necessarily axisymmetric cyclotron (as opposed to dynamic harmonization). We reveal that the Fourier transform ion cyclotron resonance cell with dynamic harmonization (paracell) is proved to be statically harmonized. The volume of the statically harmonized potential distribution increases with an increase in the number of trap segments. PMID- 29028405 TI - Evaluation of plasma peptides extraction methods by high-resolution mass spectrometry. AB - Monitoring of peptides offers a promising approach for the discovery of novel biomarkers, which might be valuable for detection, treatment and prevention of large variety of diseases. Development of highly effective methods for plasma peptide extraction remains an important task. In the current study, we applied different types of plasma peptide extraction approaches to reveal efficient methods which would provide the highest peptide yield. We used different combinations of plasma treatment with acetonitrile and/or urea/guanidine, protein precipitation by acetone, gel-filtration, ultrafiltration, and two types of solid phase extraction. The extracted peptides were analyzed by LC-MS/MS. The obtained results suggest that several methods, including differential solubilization, organic precipitation, as well as some variants of ultrafiltration and solid phase extraction, provide effective plasma peptide enrichment convenient for further LC-MS/MS analysis. Alas, most of the identified peptides were extracted by only one of the applied methods. Hence, it seems reasonable to consider several methods to increase the possibility of novel biomarker discovery. PMID- 29028406 TI - Loading of mass spectrometry ion trap with Th ions by laser ablation for nuclear frequency standard application. AB - We describe an original multisectional quadrupole ion trap aimed to realize nuclear frequency standard based on the unique isomer transition in thorium nucleus. It is shown that the system effectively operates on Th+, Th2+ and Th3+ ions produced by laser ablation of metallic thorium-232 target. Laser intensity used for ablation is about 6 GW/cm2. Via applying a bias potential to every control voltage including the RF one, we are able not only to manipulate ions within the energy range as wide as 1-500 eV but to specially adjust trap potentials in order to work mainly with ions that belong to energy distribution maximum and therefore to effectively enhance the number of trapped ions. Measurement of energy distributions of 232Th+, 232Th2+, 232Th3+ ions obtained by laser ablation allows us to define optimal potential values for trapping process. Observed number of ions inside trap in dependence on trapping time is found to obey an unusually slow - logarithmic decay law that needs more careful study. PMID- 29028407 TI - Synthesis of carboxylated styrene polymer for internal calibration of Fourier transform ion cyclotron resonance mass-spectrometry of humic substances. AB - We report synthesis and application of the novel carboxylated styrene for internal calibration of Fourier transform ion cyclotron resonance mass-spectra of humic substances. The calibrant was synthesized in five steps from acetylsalicylic acid (aspirin) followed by spontaneous polymerization of vinyl salicylic acid. Aromatic nature of the prepared polymer enabled its simultaneous analysis in the presence of the Suwannee River fulvic acid without using dual spray approach. The major advantage of the calibrant proposed in this study is a lack of suppression of humic substances signals and maintenance of peak intensity distribution. The appropriate calibration resulted in an increased number of unambiguous identification in Suwannee River fulvic acid. Thanks to the higher mass accuracy, it was also possible to refine attribution of the CHOS species to hydrolysable tannins as opposed to the erroneous previous assignment to the condensed tannins. PMID- 29028408 TI - Tonic Pupil in Cytomegalovirus Anterior Uveitis in an Immunocompetent Adult Male A Case Report. AB - PURPOSE: To report an interesting case of development of tonic pupil in an immunocompetent male with cytomegalovirus (CMV) anterior uveitis. METHODS: Retrospective case report Results: A 30-year-old Iranian healthy male was diagnosed to have Posner-Schlossman syndrome (OS). Aqueous tap was positive for CMV by multiplex Polymerase chain reaction (PCR). Adequate control of inflammation and Intraocular pressures (IOP) were achieved with topical steroids, ganciclovir gel, and antiglaucoma medications. On a follow-up visit, he complained of recent onset of blurring of vision (OS) despite appropriate refractive correction, quiet anterior chamber, and normal IOP. Pupillary examination showed anisocoria (larger pupil in OS). Pupillary constriction (OS) on instillation of 0.125% pilocarpine drops confirmed the diagnosis of a tonic pupil. CONCLUSION: We describe a unique finding of tonic pupil on a follow-up examination in an immunocompetent adult male with CMV anterior uveitis. A prior association has not been described in literature (Medline Search). PMID- 29028409 TI - High prevalence and low intensity Ichthyophonus infections in Pacific Halibut (Hippoglossus stenolepis). AB - Ichthyophonus occurred at high prevalence but low intensity in Pacific Halibut (Hippoglossus stenolepis) throughout the west coast of North America, ranging from coastal Oregon to the Bering Sea. Infection prevalence in adults was variable on spatial and temporal scales, with the lowest prevalence typically occurring on the edges of the geographic range and highest prevalence consistently occurring inside Prince William Sound, AK (58-77%). Additionally, intra-annual differences occurred at Albatross - Portlock, AK (71% versus 32% within 2012) and inter-annual differences occurred along coastal Oregon (50% versus 12% from 2012 to 2015). The infection prevalence was influenced by host age, increasing from <= 3% among the youngest cohorts (<=age 6) to 39-54% among age 9-17 cohorts, then decreasing to 27% among the oldest (age 18+) cohorts. There was little indication of significant disease impacts to Pacific Halibut, as the intensity of infection was uniformly low and length-at-age was similar between infected and uninfected cohorts. These results suggest that Ichthyophonus in Pacific Halibut currently represents a stable parasite-host paradigm in the North Pacific. Received 04 May 2017 accepted 09 Oct 2017 revised 21 Sep 2017. PMID- 29028410 TI - Development of an Inhibitor Screening Assay for Mono-ADP-Ribosyl Hydrolyzing Macrodomains Using AlphaScreen Technology. AB - Protein mono-ADP-ribosylation is a posttranslational modification involved in the regulation of several cellular signaling pathways. Cellular ADP-ribosylation is regulated by ADP-ribose hydrolases via a hydrolysis of the protein-linked ADP ribose. Most of the ADP-ribose hydrolases share a macrodomain fold. Macrodomains have been linked to several diseases, such as cancer, but their cellular roles are mostly unknown. Currently, there are no inhibitors available targeting the mono-ADP-ribose hydrolyzing macrodomains. We have developed a robust AlphaScreen assay for the screening of inhibitors against macrodomains having mono-ADP-ribose hydrolysis activity. We utilized this assay for validatory screening against human MacroD1 and identified five compounds inhibiting the macrodomain. Dose response measurements and an orthogonal assay further validated four of these compounds as MacroD1 inhibitors. The developed assay is homogenous, easy to execute, and suitable for the screening of large compound libraries. The assay principle can also be adapted for other ADP-ribose hydrolyzing macrodomains, which can utilize a biotin-mono-ADP-ribosylated protein as a substrate. PMID- 29028412 TI - The Bacteroid Periplasm in Soybean Nodules Is an Interkingdom Symbiotic Space. AB - The functional role of the periplasm of nitrogen-fixing bacteroids has not been determined. Proteins were isolated from the periplasm and cytoplasm of Bradyrhizobium diazoefficiens bacteroids and were analyzed using liquid chromatography tandem mass spectrometry proteomics. Identification of bacteroid periplasmic proteins was aided by periplasm prediction programs. Approximately 40% of all the proteins identified as periplasmic in the B. diazoefficiens genome were found expressed in the bacteroid form of the bacteria, indicating the periplasm is a metabolically active symbiotic space. The bacteroid periplasm possesses many fatty acid metabolic enzymes, which was in contrast to the bacteroid cytoplasm. Amino acid analysis of the periplasm revealed an abundance of phosphoserine, phosphoethanolamine, and glycine, which are metabolites of phospholipid metabolism. These results suggest the periplasm is a unique space and not a continuum with the peribacteroid space. A number of plant proteins were found in the periplasm fraction, which suggested contamination. However, antibodies to two of the identified plant proteins, histone H2A and lipoxygenase, yielded immunogold labeling that demonstrated the plant proteins were specifically targeted to the bacteroids. This suggests that the periplasm is an interkingdom symbiotic space containing proteins from both the bacteroid and the plant. PMID- 29028413 TI - Initial Assessment, Treatment, and Follow-Up of Minor Pediatric Burn Wounds in Four Patients Remotely: A Preliminary Communication. AB - BACKGROUND: Close, multidisciplinary collaboration with burn experts is the essential strategy to achieve the best functional and esthetic outcomes in burn wound treatment. Management of minor burn injuries, where no specialized care is available, might be challenging. One concept to achieve a fast and timely result is the application of telemedicine. The objective of this study was to assess and develop a simple telemedicine protocol, which can be applied globally. MATERIAL AND METHODS: We present a pilot study based on a pediatric population of four patients with minor burns. Based on the severity and burn area, two cases of ambulant pediatric patients (mean 1% total body surface area, superficial and deep 2 degrees burn) with minor burn injuries met study criteria and were enrolled. A pediatrician performed the initial assessment, followed by plastic surgery video consultation, using telephone's digital camera. Treatment protocols were designed to optimize outcomes. After the initial treatment phase, which took place at a nonteaching local hospital in Poland from January 1, 2014, to December 31, 2014, clinical follow-up was performed by a plastic surgeon via smartphone in the United States. RESULTS: We have achieved complete burn wound resolution, in all patients, with no scarring and only minor discoloration. A simple, reproducible treatment protocol was designed to include dressing changes and additional outpatient visits. CONCLUSIONS: Implementation of a telemedicine protocol allows for easy access to burn consultations, helps multidisciplinary collaboration, eases follow-ups, and shortens specialists' consult wait times. Real-time evaluation provides fast and flexible treatment, without long distance travels, for patients and their families. Telemedicine increases the frequency of follow-up, contributes to the esthetic outcome, and together with improved cost effectiveness is beneficial for both the patient and healthcare system. PMID- 29028411 TI - Expanding the map of protein-RNA interaction sites via cell fusion followed by PAR-CLIP. AB - PAR-CLIP (photoactivatable ribonucleoside-enhanced crosslinking and immunoprecipitation) facilitates the identification and mapping of protein/RNA interactions. So far, it has been limited to select cell-lines as it requires efficient 4SU uptake. To increase transcriptome complexity and thus identify additional RNA-protein interaction sites we fused HEK 293 T-Rex cells (HEK293-Y) that express the RNA binding protein YBX1 with PC12 cells expressing eGFP (PC12 eGFP). The resulting hybrids enable PAR-CLIP on a neuronally expanded transcriptome (Fusion-CLIP) and serve as a proof of principle. The fusion cells express both parental marker genes YBX1 and eGFP and the expanded transcriptome contains human and rat transcripts. PAR-CLIP of fused cells versus the parental HEK293-Y identified 768 novel RNA targets of YBX1. We were able to trace the origin of the majority of the short PAR-CLIP reads as they differentially mapped to the human and rat genome. Furthermore, Fusion-CLIP expanded the CAUC RNA binding motif of YBX1 to UCUUUNNCAUC. The fusion of HEK293-Y and PC12-eGFP cells resulted in cells with a diverse genome expressing human and rat transcripts that enabled the identification of novel YBX1 substrates. The technique allows the expansion of the HEK 293 transcriptome and makes PAR-CLIP available to fusion cells of diverse origin. PMID- 29028414 TI - Immunization attitudes and practices among family medicine providers. AB - OBJECTIVE: To describe immunization attitudes and practices among family medicine providers across New York State. METHODS: In this cross-sectional survey study, family medicine providers across New York State completed a questionnaire to assess vaccine beliefs and barriers and immunization practices. STATISTICAL ANALYSIS: Descriptive statistical methods were used to define provider characteristics, knowledge and vaccine practices. RESULTS: Completed questionnaires from 226 family medicine providers were included for analysis. As a group, 207/218 (95%) of providers who answered the question state they always recommend standard pediatric vaccines. Of the 209 providers who answered both questions, 47 (22%) state they always recommend standard pediatric vaccines but do not always recommend HPV vaccine to eligible 11-12 year-old patients. Only 75% of providers strongly disagreed with the statement 'vaccinating adolescents against HPV increases the likelihood of unprotected sex'. Even though 178/190 (94%) and 164/188 (87%) of surveyed family medicine providers reported recommending that their pregnant patients receive influenza vaccine and Tdap vaccine, respectively, only 134/185 (72%) routinely do so in their office. CONCLUSION: Most family medicine providers self-report always recommending standard pediatric vaccines, however only a minority are following ACIP recommendations. Educational sessions to update family medicine providers on ACIP recommendations and address individual provider concerns may improve provider vaccine confidence and uptake of vaccines by their patients. PMID- 29028416 TI - Differences in Risky Sexual Behavior According to Sexual Orientation in Korean Adolescents. AB - Adolescents in sexual minority groups are known to be at risk of contracting sexually transmitted diseases through risky sexual behavior. However, few studies have examined associations between sexual orientation and risky sexual behavior and sexually transmitted diseases in Korean adolescents. Therefore, this cross sectional study used raw data from the Tenth Korea Youth Risk Behavior Web-Based Survey to explore these relationships. Logistic regression analyses were performed to examine the associations between risky sexual behavior and sexual orientation in adolescents. The participants were 6,884 adolescents who provided data regarding demographic characteristics, sexual orientation, and risky sexual behavior. The proportions of homosexual and bisexual subjects who used condoms, engaged in sexual intercourse after drinking alcohol, and experienced sexually transmitted diseases were higher relative to those of heterosexual subjects. Associations between homosexuality and bisexuality and sexually transmitted diseases and engagement in sexual intercourse after drinking remained after multivariate adjustment. Interventions to prevent risky sexual behavior should target sexual orientation, to improve sexual health and prevent sexually transmitted disease in homosexual and bisexual adolescents. PMID- 29028415 TI - CRISPR/Cas9-mediated noncoding RNA editing in human cancers. AB - Cancer is characterized by multiple genetic and epigenetic alterations, including a higher prevalence of mutations of oncogenes and/or tumor suppressors. Mounting evidences have shown that noncoding RNAs (ncRNAs) are involved in the epigenetic regulation of cancer genes and their associated pathways. The clustered regularly interspaced short palindromic repeats (CRISPR)-associated nuclease 9 (CRISPR/Cas9) system, a revolutionary genome-editing technology, has shed light on ncRNA-based cancer therapy. Here, we briefly introduce the classifications and mechanisms of CRISPR/Cas9 system. Importantly, we mainly focused on the applications of CRISPR/Cas9 system as a molecular tool for ncRNA (microRNA, long noncoding RNA and circular RNA, etc.) editing in human cancers, and the novel techniques that are based on CRISPR/Cas9 system. Additionally, the off-target effects and the corresponding solutions as well as the challenges toward CRISPR/Cas9 were also evaluated and discussed. Long- and short-ncRNAs have been employed as targets in precision oncology, and CRISPR/Cas9-mediated ncRNA editing may provide an excellent way to cure cancer. PMID- 29028417 TI - Opioid Prescription Trends Among Patients With Cancer Referred to Outpatient Palliative Care Over a 6-Year Period. AB - INTRODUCTION: In the United States, opioid regulations have become increasingly stringent in recent years. Increased regulatory scrutiny, in part, is related to heightened awareness through literature and a recent media blitz on the opioid prescription epidemic. These regulations have the potential to impact prescription trends by health care providers. Our objective was to evaluate changes in the type and dose of opioid prescriptions among patients who are referred by oncologists to an outpatient palliative care clinic. MATERIALS AND METHODS: We reviewed the electronic health records of 750 patients who were seen as new consultations at MD Anderson Cancer Center's outpatient palliative care clinic between January 1 and April 30 each year from 2010 through 2015. Data collected included demographics, cancer type and stage, symptom assessment, performance status, opioid type, and opioid dose defined as the morphine equivalent daily dose (MEDD). RESULTS: Median age was 59 years (interquartile range [IQR], 51 to 67), 383 (51%) were female, 529 (70%) were white, and 654 (87%)of patients had advanced cancer. In 2010, median MEDD before referral was 78 mg/d (IQR, 30 to 150); however, by 2015, the MEDD had progressively decreased to 40 mg/d (IQR, 19 to 80; P = .001). Hydrocodone was the most common opioid prescribed between 2010 and 2015; however, after its reclassification as a schedule II opioid in October 2014, the use of tramadol, a schedule IV opioid, increased ( P < .001). CONCLUSION: During the past several years, the MEDD prescribed by referring oncologists has decreased. After hydrocodone reclassification, the use of tramadol with less stringent prescription limits has increased. PMID- 29028419 TI - An innovative educational clinical experience promoting geriatric exercise. AB - Formal educational training in physical activity promotion is relatively sparse throughout the medical education system. The authors describe an innovative clinical experience in physical activity directed at medical clinicians on a geriatrics rotation. The experience consists of a single 2 1/2 hour session, in which learners are partnered with geriatric patients engaged in a formal supervised exercise program. The learners are guided through an evidence-based exercise regimen tailored to functional status. This experience provides learners with an opportunity to interact with geriatric patients outside the hospital environment to counterbalance the typical geriatric rotation in which geriatric patients are often seen in clinics or hospitals. In this experience, learners are exposed to fit and engaged geriatric patients successfully living in the community despite chronic or disabling conditions. A survey of 105 learners highlighted positive responses to the experience, with 96% of survey respondents indicating that the experience increased their confidence in their ability to serve as advocates for physical activity for older adults, and 89.5% of responders to a follow-up survey indicating that the experience changed their perception of geriatric patients. Modifications to the experience, implemented at partnering facilities are described. The positive feedback from this experience warrants consideration for implementation in other settings. PMID- 29028418 TI - Cancer Center Clinic and Research Team Perceptions of Identity and Interactions. AB - PURPOSE: Conduct of cancer clinical trials requires coordination and cooperation among research and clinic teams. Diffusion of and confusion about responsibility may occur if team members' perceptions of roles and objectives do not align. These factors are critical to the success of cancer centers but are poorly studied. METHODS: We developed a survey adapting components of the Adapted Team Climate Inventory, Measure of Team Identification, and Measure of In-Group Bias. Surveys were administered to research and clinic staff at a National Cancer Institute-designated comprehensive cancer center. Data were analyzed using descriptive statistics, t tests, and analyses of variance. RESULTS: Responses were received from 105 staff (clinic, n = 55; research, n = 50; 61% response rate). Compared with clinic staff, research staff identified more strongly with their own group ( P < .01) but less strongly with the overall cancer center ( P = .02). Both clinic staff and research staff viewed their own group's goals as clearer than those of the other group ( P < .01) and felt that members of their groups interacted and shared information within ( P < .01) and across ( P < .01) groups more than the other group did. Research staff perceived daily outcomes as more important than did clinic staff ( P = .05), specifically research-related outcomes ( P = .07). CONCLUSION: Although there are many similarities between clinic and research teams, we also identified key differences, including perceptions of goal clarity and sharing, understanding and alignment with cancer center goals, and importance of outcomes. Future studies should examine how variation in perceptions and group dynamics between clinic and research teams may impact function and processes of cancer care. PMID- 29028420 TI - The Effect of Telemedicine on Resource Utilization and Hospital Disposition in Critically Ill Pediatric Transport Patients. AB - PURPOSE: Pediatric transport teams rely on communication to report patient data to medical command officers, who create care plans and determine disposition. Common destinations are the emergency department (ED), pediatric intensive care unit (PICU), or regular inpatient care area (RIPCA). Telephone report does not result in complete understanding of the patient's condition. Further workup in the ED is often required. Telemedicine allows the patient to be directly seen; parents to be interviewed; and laboratory studies, radiographs, and vital signs to be reviewed. We hypothesized that telemedicine would improve understanding of the patient and result in more accurate disposition. DESIGN: Patients within our hospital from 2012 to 2013 were compared with patients transported using our telemedicine program from April 2014 to April 2015. RESULTS: From 2012 to 2013, a total of 4,662 transports were performed. Of these, 4,067 were inbound transports, 2,302 of these patients were sent to ED (56.6%), 1,062 were sent to RIPCA (26%), and 431 were sent to PICU (10.6%). Over a year-long period of telemedicine implementation, 212 patients used telemedicine and were analyzed. ED utilization decreased to 27% (p < 0.0001), PICU increased to 34.4% (p < 0.0001), and RIPCA rates remained the same at 28% (p = 0.203). Of ED dispositions, 58.6% were admitted to RIPCA for further care, 13.7% to PICU for escalation of care, and 24.1% were discharged. Of RIPCA dispositions, 10% had rapid responses; 0 had code blues. Of PICU dispositions, 90.4% had care escalation; 9.6% were observed in the PICU without escalation. CONCLUSION: Telemedicine use in transported pediatric patients can positively alter disposition patterns. PMID- 29028421 TI - Medical student reflections on geriatrics: Moral distress, empathy, ethics and end of life. AB - Medical students' early clinical encounters may influence their perceptions of geriatrics. This study examines reflective essays written by 3rd-year medical students on required clinical rotations. Using content analysis, the authors analyzed the essays' thematic content. The authors then used chi-squared analysis to compare themes with geriatric patients (age 60+) to themes with other age groups. One hundred twenty out of 802 essays described a geriatric patient. The most common geriatric themes were (1) death and dying, (2) decision making, (3) meaningful physician-patient interactions, (4) quality of care, and (5) professional development. Geriatric essays were more likely to discuss death/dying and risk-benefit themes and less likely to discuss abuse. Geriatric essays were more likely to describe students' moral distress. Geriatric essays with moral distress were more likely to include empathy themes compared to geriatric essays without moral distress. Geriatric patients may pose unique ethical challenges for early clinical students. PMID- 29028422 TI - Enterococcus faecalis Endophthalmitis in Children - A 21 Year Study. AB - PURPOSE: To report Enterococcus faecalis endophthalmitis (EFE) in children and its comparison with adults. METHODS: Retrospective study of 19 children up to 18 years age, undergoing vitrectomy for EFE at a referral eye center from January 1995 to December 2015. The results were compared to 18 adults with EFE. RESULTS: The mean age was 7.4 +/- 3.06 years. Post-traumatic EFE was seen in 17 (89.4%) children (p < 0.05) versus postoperative EFE seen in 12 (66%) adults. Broomstick 9 (52.9%) and hypodermic needle injury 6 (35.2%) were common associations. "Optimum functional outcome" was achieved in 12 (63.1%) eyes of children and 5 (27.7%) eyes of adults (p = 0.03). Sealed and Zone II wounds, lens, and needle injuries had good outcome whereas intervention after 3 days and retinal detachment had poor outcomes (p < 0.05). The was no correlation with the Ocular Trauma Score. CONCLUSION: EFE in children is rare; seen with broom stick and needle injuries, if managed early recovers optimum vision. PMID- 29028423 TI - 2016 Updates to the WHO Brain Tumor Classification System: What the Radiologist Needs to Know. AB - Radiologists play a key role in brain tumor diagnosis and management and must stay abreast of developments in the field to advance patient care and communicate with other health care providers. In 2016, the World Health Organization (WHO) released an update to its brain tumor classification system that included numerous significant changes. Several previously recognized brain tumor diagnoses, such as oligoastrocytoma, primitive neuroectodermal tumor, and gliomatosis cerebri, were redefined or eliminated altogether. Conversely, multiple new entities were recognized, including diffuse leptomeningeal glioneuronal tumor and multinodular and vacuolating tumor of the cerebrum. The glioma category has been significantly reorganized, with several infiltrating gliomas in children and adults now defined by genetic features for the first time. These changes were driven by increased understanding of important genetic factors that directly impact tumorigenesis and influence patient care. The increased emphasis on genetic factors in brain tumor diagnosis has important implications for radiology, as we now have tools that allow us to evaluate some of these alterations directly, such as the identification of 2-hydroxyglutarate within infiltrating gliomas harboring mutations in the genes for the isocitrate dehydrogenases. For other tumors, such as medulloblastoma, imaging can demonstrate characteristic patterns that correlate with particular disease subtypes. The purpose of this article is to review the changes to the WHO brain tumor classification system that are most pertinent to radiologists. (c)RSNA, 2017. PMID- 29028424 TI - Unique Tailoring of Th17 at the Gingival Oral Mucosal Barrier. AB - Our recent work highlights unique requirements for the induction of Th17 cells at the oral/gingival mucosal barrier. Unlike other barrier sites, such as the skin and gastrointestinal tract, we found that Th17 cells can develop at the gingiva independently of commensal microbiota colonization. Instead, we identified that damage, which occurs physiologically due to mastication, promotes induction of Th17 cells and tones homeostatic immunity at the gingiva. PMID- 29028425 TI - Movement Variability Increases With Shoulder Pain When Compensatory Strategies of the Upper Body Are Constrained. AB - This cross-sectional study analyzed the influence of chronic shoulder pain (CSP) on movement variability/kinematics during humeral elevation, with the trunk and elbow motions constrained to avoid compensatory strategies. For this purpose, 37 volunteers with CSP as the injured group (IG) and 58 participants with asymptomatic shoulders as the control group (CG) participated in the study. Maximum humeral elevation (Emax), maximum angular velocity (Velmax), variability of the maximum angle (CVEmax), functional variability (Func_var), and approximate entropy (ApEn) were calculated from the kinematic data. Patients' pain was measured on the visual analogue scale (VAS). Compared with the CG, the IG presented lower Emax and Velmax and higher variability (i.e., CVEmax, Func_var, and ApEn). Moderate correlations were achieved for the VAS score and the kinematic variables Emax, Velmax and variability of curve analysis, Func_varm, and ApEn. No significant correlation was found for CVEmax. In conclusion, CSP results in a decrease of angle and velocity and an increased shoulder movement variability when the neuromuscular system cannot use compensatory strategies to avoid painful positions. PMID- 29028426 TI - A Single-Bead-Based, Fully Integrated Microfluidic System for High-Throughput CD4+T Lymphocyte Enumeration. AB - A single-bead-based, fully integrated microfluidic system has been developed for high-throughput CD4+T lymphocyte enumeration at point-of-care testing. Instead of directly counting CD4+T lymphocytes, CD4+T lymphocyte enumeration is achieved by quantitatively detecting CD4 antigen from the lysed blood sample with a functionalized polycarbonate single bead based on chemiluminescence. To implement the sandwiched chemiluminescence immunoassay with reduced nonspecific binding, a streamlined microfluidic chip with multiple reaction chambers is developed to allow each reaction step to be completed in an independent chamber where reagent is pre-stored. With simple magnetic control, the single bead with an embedded ferrous core can be consecutively transported between each of two adjacent chambers for different reactions. Meanwhile, enhanced mixing can be achieved by moving the single bead back and forth inside one chamber with magnetic actuation. High-throughput detection can be performed when a linear actuation stage is adopted to introduce synchronous magnetic control to multiple single beads in parallel microfluidic chips. A sensitive charge-coupled device (CCD) camera is adopted for high-throughput chemiluminescence detection from multiple single beads. Experimental results show that with the fully integrated microfluidic system, easy-to-operate, accurate, low-cost, immediate, and high-throughput CD4+T lymphocyte enumeration can be successfully achieved at resource-poor settings. PMID- 29028427 TI - Air quality measurements-From rubber bands to tapping the rainbow. PMID- 29028428 TI - Introduction to a special grouping of papers from the 2016 Air Quality Measurement Methods and Technology Conference. PMID- 29028430 TI - Curcumin Prevents Osteoarthritis by Inhibiting the Activation of Inflammasome NLRP3. AB - Curcumin has shown protective potential on osteoarthritis. However, its effect on treatment of osteoarthritis remains elusive so far. This study aimed to determine whether curcumin could ameliorate osteoarthritis in vivo and the underline mechanisms. The mice subjected to destabilization of the medial meniscus (DMM) surgery were administered curcumin. Cartilage integrity was evaluated by immunohistological staining. Expression levels of inflammatory cytokines from mice arthrodial cartilage were detected. THP-1 cells were primed by lipopolysaccharide (LPS)/ATP to induce inflammation, followed by the addition of curcumin. The expression of proinflammatory cytokines was also detected. Moreover, the expression of pro-caspase-1, cleaved caspase-1, and NLRP3 inflammasome was examined. Administration of curcumin significantly reduced osteoarthritis disease progression in DMM model of osteoarthritis. Curcumin suppressed mRNA expression of proinflammatory mediators in arthrodial cartilage of mice subjected to surgery. In LPS- and ATP-induced THP-1 macrophage cells, curcumin significantly suppressed the expression of interleukin 1 beta (IL-1beta) and tumor necrosis factor alpha (TNF-alpha) at both RNA and protein levels. Compared to vehicle-treated controls, curcumin also showed remarkably increased pro-caspase-1 and decreased cleaved caspase-1. This study provides the first evidence that curcumin exerts protection on osteoarthritis by inhibition to the release of inflammasome NLRP3, leading to the downregulation of inflammatory cytokines. PMID- 29028431 TI - Interferon Tau Regulates Cytokine Production and Cellular Function in Human Trophoblast Cell Line. AB - Type I interferons (IFN), including IFN-beta (IFNB), activate multiple STAT signaling to drive various biological responses. Another type I IFN, IFN-tau (IFNT), secreted by ruminant embryonic trophoblast cells, has multiple functions with low cytotoxicity. Here, we examined the effects of IFNT on human trophoblast cell functions. First, we performed next-generation sequencing and demonstrated that IFNT-dependent changes in the human Sw.71 trophoblast cell line are partly mediated by proinflammatory as well as IFN signaling. Next, we validated candidate genes, and data confirmed that IFNT stimulated interleukin-6 (IL-6) and IL-8 mRNA expression and secretion. However, human IFNB did not affect IL-6 and IL-8 mRNA expression and secretion. IFNT-induced cytokine secretion was dependent on STAT3 signaling, but not STAT1 signaling. In addition, treatment with IFNT, IL 6, or IL-8 increased cell proliferation, and IFNT also stimulated cell migration in human trophoblast cells. Although IFNT did not affect superoxide dismutase (SOD) 1 mRNA expression, it clearly increased mitochondrial SOD2 mRNA expression, resulting in the acceleration of SOD activity. We demonstrated that in addition to IFN signaling, IFNT also regulated inflammation-related signaling as well as cell proliferation, migration, and redox signaling in human trophoblast cells. PMID- 29028432 TI - Coadministration of Recombinant Adenovirus Expressing GM-CSF with Inactivated H5N1 Avian Influenza Vaccine Increased the Immune Responses and Protective Efficacy Against a Wild Bird Source of H5N1 Challenge. AB - Wild birds play a key role in the spread of avian influenza virus (AIV). There is a continual urgent requirement for AIV vaccines to address the ongoing genetic changes of AIV. In the current study, we trialed a novel AIV vaccine against the wild bird source of H5N1 type AIV with recombinant adenovirus expressing granulocyte monocyte colony-stimulating factor (GM-CSF) as an adjuvant. A total of 150-day-old commercial chicks, with AIV-maternal-derived antibody, were divided into 6 groups. The primary vaccination was performed at day 14 followed by a subsequent boosting and intramuscular challenge on day 28 and 42, respectively. Recombinant GM-CSF (rGM-CSF) expressed by adenovirus, named as rAd GM-CSF, raised the hemagglutination inhibition (HI) titers (log2) against AIV from 7.0 (vaccinate with inactivated vaccine alone) to 8.4 after booster immunization. Moreover, the rGM-CSF addition markedly increased the expression of interferon-gamma, interleukin-4, and major histocompatibility complex-II in the lungs, compared with those immunized with inactivated vaccine alone on day 29, that is, 18 h post booster immunization. Following challenge, chicks inoculated with the inactivated AIV vaccine and rAd-GM-CSF together exhibited mild clinical signs and 62% survivals compared to 33% in the group immunized with inactivated AIV vaccine alone. Higher level of HI titers, immune related molecule expressions, and protection ratio demonstrates a good potential of rGM-CSF in improving humoral and cell mediated immune responses of inactivated AIV vaccines. PMID- 29028435 TI - Evaluation of Agricultural Interventions on Human and Poultry-Related Salmonella Enteritidis in British Columbia. AB - A collaborative investigation between public health and animal health led to numerous interventions along the food chain in response to an outbreak of human salmonellosis and increased incidence of Salmonella Enteritidis (SE) among poultry. Incidence of both human and chicken SE decreased substantially in 2012 and 2013 following these interventions. We used time series analysis to assess the impact of three interventions: vaccination of broiler breeder flocks, separation in the hatchery of breeder eggs, and an industry order to stop farm gate sales of ungraded broiler hatching eggs. Results show a Granger causal association between human SE incidence and SE incidence in chickens 8 months earlier. Among the interventions, separation of breeder flocks showed a consistent and statistically significant association with declining SE incidence in chickens. Our results did not show consistent declines in chicken SE following breeder flock vaccination (live or inactivated vaccine). None of the interventions had statistically significant impacts on human SE incidence. Our results are consistent with a positive effect of certain interventions and also reveal where additional data are needed for a more comprehensive evaluation. Multiple interventions throughout the food chain are best practices when dealing with enteric pathogens; collecting data on the timing and intensity of these interventions allow proper evaluation of their independent and combined effects. Finally, we identify considerations for others interested in undertaking similar evaluations. Ongoing collaborative work between public health and animal health is required to refine strategies for SE control in British Columbia. PMID- 29028434 TI - Gender Differences in Hostility and Aggression Among Military Healthcare Personnel After Deployment. PMID- 29028436 TI - Pain Management After Hip Arthroscopy: Systematic Review of Randomized Controlled Trials and Cohort Studies. AB - BACKGROUND:: Hip arthroscopy is often associated with significant postoperative pain and opioid-associated side effects. Effective pain management after hip arthroscopy improves patient recovery and satisfaction and decreases opioid related complications. PURPOSE:: To collect, examine, and provide a comprehensive review of the available evidence from randomized controlled trials and comparative studies on pain control after hip arthroscopy. STUDY DESIGN:: Systematic review. METHODS:: Using the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines, a systematic review of the literature for postoperative pain control after hip arthroscopy was performed using electronic databases. Only comparative clinical studies with level 1 to 3 evidence comparing a method of postoperative pain control with other modalities or placebo were included in this review. Case series and studies without a comparative cohort were excluded. RESULTS:: Several methods of pain management have been described for hip arthroscopy. A total of 14 studies met our inclusion criteria: 3 on femoral nerve block, 3 on lumbar plexus block, 3 on fascia iliaca block, 4 on intra-articular injections, 2 on soft tissue surrounding surgical site injection, and 2 on celecoxib (4 studies compared 2 or more methods of analgesia). The heterogeneity of the studies did not allow for pooling of data. Single-injection femoral nerve blocks and lumbar plexus blocks provided improved analgesia, but increased fall rates were observed. Fascia iliaca blocks do not provide adequate pain relief when compared with surgical site infiltration with local anesthetic and are associated with increased risk of cutaneous nerve deficits. Patients receiving lumbar plexus block experienced significantly decreased pain compared with fascia iliaca block. Portal site and periacetabular injections provide superior analgesia compared with intra-articular injections alone. Preoperative oral celecoxib, compared with placebo, resulted in earlier time to discharge and provided significant pain relief up to 24 hours. CONCLUSION:: Perioperative nerve blocks provide effective pain management after hip arthroscopy but must be used with caution to decrease risk of falls. Intra-articular and portal site injections with local anesthetics and preoperative celecoxib can decrease opioid consumption. There is a lack of high-quality evidence on this topic, and further research is needed to determine the best approach to manage postoperative pain and optimize patient satisfaction. PMID- 29028437 TI - Stimulants Do Not Increase the Risk of Seizure-Related Hospitalizations in Children with Epilepsy. AB - OBJECTIVE: To evaluate the safety of stimulants in children with epilepsy. METHODS: In a retrospective cohort study based on Medicaid Analytic eXtract billing records from 26 U.S. states from 1999 to 2010, we identified incident stimulant use among children with epilepsy through outpatient encounter claims and pharmacy claims. We established a control group of nonusers and used frequency matching to generate index dates. We followed both cohorts for 12 months and calculated hazard ratios [HRs] of current and former use of stimulants versus no use on the outcome of seizure-related hospitalization using multivariate Cox proportional hazard models. RESULTS: We identified 18,166 stimulant users and 54,197 nonusers in children with epilepsy. The incidence of seizure-related hospitalization in current stimulant users, former users, and nonusers was 3.6, 3.5, and 4.3 per 100 patient-years. After adjustment for confounders, we found current and former use of stimulants did not increase seizure-related hospitalizations (HR 0.95, 95% confidence interval [CI]: 0.83, 1.09 and HR 0.99, 95% CI: 0.85, 1.15). Children with cerebral palsy, congenital nervous system anomalies, or intellectual disability did not have significantly higher HRs than those without the already mentioned comorbidities. CONCLUSION: This study has not identified any overall increase in the rate of seizure-related hospitalizations with the use of stimulants in children with epilepsy. PMID- 29028438 TI - Laser Sintering Technology and Balling Phenomenon. AB - OBJECTIVE: The aim of this review was to evaluate the balling phenomenon which occurs typically in Selective Laser Sintering (SLS). BACKGROUND DATA: The balling phenomenon is a typical SLS defect, and observed in laser sintered powder, significantly reduces the quality of SLS, and hinders the further development of SLS Technology. METHODS: Electronic database searches were performed using Google Scholar. The keywords "laser sintering, selective laser sintering, direct metal laser melting, and balling phenomenon" were searched in title/abstract of publications, limited to December 31, 2016. The inclusion criteria were SLS, balling phenomenon, some alloys (such as Cr-Co, iron, stainless steel, and Cu based alloys) mechanical properties, microstructure and bond strength between metal-ceramic crown, laboratory studies, full text, and in English language. RESULTS: A total of 100 articles were found the initial search and yielded a total of 50 studies, 30 of which did not fulfill the inclusion criteria and were therefore excluded. In addition, 20 studies were found by screening the reference list of all included publications. Finally, 40 studies were selected for this review. CONCLUSIONS: The method in question is regulated by powder material characteristics and the conditions of laser processing. The procedure of formation, affecting factors, and the mechanism of the balling effect are very complex. PMID- 29028439 TI - A Dyadic Approach to Understanding the Link Between Sexual Functioning and Sexual Satisfaction in Heterosexual Couples. AB - Researchers have demonstrated that several dimensions of sexual functioning (e.g., sexual desire, arousal, orgasm) are associated with the sexual satisfaction of individuals in a committed mixed-sex (male-female) relationship. We extended this research by comparing a dyadic model that included both own (i.e., actor effect) and partner (i.e., partner effect) domains of sexual functioning to an individual model that included only actor effects. Participants were 124 mixed-sex couples who completed online measures of sexual functioning and sexual satisfaction. Data analysis using the actor-partner interdependence model (APIM) and structural equation modeling (SEM) indicated that the dyadic model had a better fit than the individual model. Women's sexual desire and orgasm and men's erectile functioning were significant positive predictors of both own and partner's sexual satisfaction. These results are discussed in terms of the importance of taking a dyadic approach to research and clinical work related to sexual satisfaction. PMID- 29028440 TI - Intracerebroventricular infusion of angiotensin AT2 receptor agonist novokinin aggravates some diabetes-mellitus-induced alterations in Wistar rats. AB - Cumulative data suggest the significant role of the renin-angiotensin system in the development of the pathological consequences of diabetes mellitus (DM). Newly synthesized AT2 receptor agonists gained importance as a target for creating new antihypertensives. The aim of the present work was to study the effects of peptide AT2 agonist novokinin, infused intracerebroventricularly, on the consequences of the streptozotocin-induced type 1 DM (T1DM) in Wistar rats. Food and water consumption, body mass, urine excretion (metabolic cages), motor activity (open-field test), anxiety (elevated plus maze), nociception (paw pressure analgesimeter test), spatial memory (T-maze alternation test), and plasma levels of glucose and corticosterone (ELISA) were assessed 2 weeks after the T1DM induction. Novokinin increased water and food consumption, as well as urine output, and reduced mass gain in the control rats. Diabetic rats demonstrated hyperalgesia, increased level of plasma corticosterone, decreased motor and exploratory activity, and impaired spatial memory. Novokinin infusion increased water intake, diuresis, and mortality rate, decreased food intake, exacerbated diabetes-induced hyperalgesia, and provoked anxiety-like behavior but improved spatial memory in diabetic rats. These initial data suggest that angiotensin AT2 receptors participate in the pathogenesis of T1DM-induced complications in the function of the nervous system. PMID- 29028441 TI - Physiological and pharmacological inductors of HSP70 enhance the antioxidative defense mechanisms of the liver and pancreas in diabetic rats. AB - Heat preconditioning (HP) is a powerful adaptive and protective phenomenon and the heat stress proteins (HSPs) it produces are an important determinant for the development of diabetic complications. Aspirin has been reported to modulate heat shock response in different organisms through increased induction of HSPs and is also known to exert antioxidative and radical scavenging effects in diabetes. We estimated the effect of physiological (heat stress: 45 min at 41 +/- 0.5 degrees C) and pharmacological (aspirin treatment) induction of HSP70 on several parameters of oxidative state in the pancreas and liver of diabetic rats. Diabetes increased HSP70 level and decreased poly(ADP) ribose polymerase (PARP), glutathione (GSH), and glutathione peroxidase (GPx) activities in the pancreas. In the liver, there was reduction of HSP70 level, GSH concentration, and CAT activity, while GPx and GR activity were enhanced. HP of diabetic rats caused an additional increase of HSP70, GSH, and antioxidant enzymes in both organs. Pre treatment of HP-diabetic animals with aspirin led to an additional increase of PARP and HSP70. Both HP and aspirin, as physiological and pharmacological inductors of HSP70, respectively, enhanced the antioxidative defense mechanisms of the liver and pancreas in diabetic rats. PMID- 29028442 TI - The Use of Mobile Applications Among Adults with Type 1 and Type 2 Diabetes: Results from the Second MILES-Australia (MILES-2) Study. AB - BACKGROUND: While the number of diabetes-specific mobile applications (apps) continues to grow, there is a lack of knowledge about their actual use. METHODS: The second MILES (Management and Impact for Long-term Empowerment and Success) Australia study was a national cross-sectional survey of the psychological, behavioral, and social aspects of diabetes for adults with type 1 diabetes (T1D) and type 2 diabetes (T2D). Associations between diabetes-specific app usage and demographic, clinical, and psychosocial variables were examined. RESULTS: Of the 1589 respondents responding to the diabetes-specific app questions, 795 had T1D (mean +/- standard deviation age 43 +/- 14 years; 61% women; diabetes duration 19 +/- 14 years) and 794 had T2D (age 60 +/- 9 years; 40% women; diabetes duration 11 +/- 7 years). Among adults with T1D, 24% (n = 188) reported using apps, with carbohydrate counting (74%; n = 139) as the most common cited purpose. App usage was significantly associated with shorter diabetes duration, more frequent glucose monitoring, and lower self-reported HbA1c. Among adults with T2D, 8% (n = 64) reported using apps, with glucose monitoring (62%; n = 39) as the most common purpose. For all respondents, the most commonly reported reason for not using apps was a belief that they could not help with diabetes self-management. CONCLUSIONS: A minority of adults with T1D and T2D use apps to support their self management. App use among adults with T1D is associated with a more recent T1D diagnosis, more frequent glucose monitoring, and lower self-reported HbA1c. Future efforts should focus on this association and determine the mechanisms by which app use is related to better clinical outcomes. PMID- 29028443 TI - Diagnosing at a Distance: Is the Goldwater Rule Still Relevant Today? PMID- 29028445 TI - Return to Sport-Specific Performance After Primary Anterior Cruciate Ligament Reconstruction: A Systematic Review. AB - BACKGROUND:: Physicians counseling athletes on the prognosis of sport-specific performance outcomes after anterior cruciate ligament reconstruction (ACLR) depend on the published literature. However, critical appraisal of the validity and biases in these studies is required to understand how ACLR affects an athlete's ability to return to sport, the athlete's sport-specific performance, and his or her ability to achieve preinjury levels of performance. PURPOSE:: This review identifies the published prognostic studies evaluating sport-specific performance outcomes after ACLR. A risk of bias assessment and summaries of return to sport and career longevity results are provided for each included study. STUDY DESIGN:: Systematic review. METHODS:: Electronic databases (Ovid MEDLINE, EMBASE, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, and PUBMED) were searched via a defined search strategy with no limits, to identify relevant studies for inclusion in the review. A priori defined eligibility criteria included studies measuring sport specific performance within an athlete's sport, before and after primary ACLR. Reference lists of eligible studies were hand-searched for additional relevant studies. Data extraction was performed by use of a standardized spreadsheet. Each included study was assessed by use of 6 bias domains of the Quality in Prognosis Studies tool to critically appraise study participation, study attrition, prognostic factors, outcome measurement, confounders, and statistical analysis and reporting. Two authors independently performed each stage of the review and reached consensus through discussion. RESULTS:: Fifteen pertinent prognostic studies evaluated sport-specific performance outcomes and/or return to play after ACLR for athletes participating in competitive soccer, football, ice hockey, basketball, Alpine ski, X-Games ski and snowboarding, and baseball. Twelve of these studies were considered to have a high level of bias. CONCLUSION:: This review demonstrated that most high-performance or professional athletes returned to their preinjury level of sport after ACLR. The bulk of evidence suggests there was a measurable decrease in performance statistics, although this is highly sport-specific. A paucity of literature is available that addresses sport specific performance in athletes after ACLR. This review has determined that the available literature is highly biased and must be read with caution. CLINICAL RELEVANCE:: By better understanding the validity and biases in the published literature, physicians can provide more informed prognoses about return to sport specific performance after ACLR while considering risk factors relevant to their patients. REGISTRATION:: CRD42016046709 (International Prospective Register of Systematic Reviews, https://www.crd.york.ac.uk/prospero/ ). PMID- 29028444 TI - Development and In-House Validation of a Real-Time Polymerase Chain Reaction for the Detection of Listeria monocytogenes in Meat. AB - Listeriosis is a foodborne disease caused by Listeria monocytogenes. The aims of this work were to develop and validate an in-house real-time polymerase chain reaction (RT-PCR) for the detection of L. monocytogenes, and to determine its prevalence in raw ground beef samples from 53 butcheries that also sell ready-to eat foods. One set of primers and one hydrolysis probe were designed for hly gene detection and then challenged with pure strains. The detection was successful for all L. monocytogenes strains analyzed and negative for all non-L. monocytogenes strains (detection limit, 10 colony forming unit [CFU]/mL). Inclusivity, exclusivity, and analytical accuracy were 100%. L. monocytogenes was detected in 41.5% of raw ground beef samples from the 53 butcheries analyzed. This RT-PCR may be a valuable method for rapid detection of L. monocytogenes in meat. PMID- 29028446 TI - Out of "Objectification Limelight"? The Contribution of Body Appreciation to Sexual Adjustment in Midlife Women. AB - According to objectification theory, women become culturally desexualized during midlife and have the opportunity to let go of their propensity to self-objectify. In young women, self-objectification is negatively related to sexual adjustment. Yet little is known about what could ameliorate this relationship or whether it continues after midlife. Body appreciation (i.e., acceptance and positive regard for the body) has been substantiated as a contributor to improved sexual adjustment in young and older women alike. Hence, this study was designed to examine whether it helps mitigate the deleterious effect of self-objectification on sexual function, satisfaction, and distress in women over the age of 50 (n = 193). Path analyses revealed that self-surveillance is related to body shame and appearance anxiety, the latter of which was related to body self-consciousness during sex. In turn, body self-consciousness during sex mediated the relationship between body shame, appearance anxiety, and all three indicators of sexual adjustment. Furthermore, high body appreciation attenuated the negative associations between self-objectification constructs, body self-consciousness during sex, and sexual satisfaction and distress. Overall, this study supports the use of objectification theory in midlife and older women. Sex therapy interventions that incorporate mindfulness and body appreciation principles are discussed. PMID- 29028447 TI - Complications of Home Enteral Nutrition: Mechanical Complications and Access Issues in the Home Setting [Formula: see text]. AB - Home enteral nutrition (HEN) is an essential component in the care of patients with an array of underlying etiologies resulting in the inability to meet caloric needs through volitional intake alone. Although some would include oral nutrition supplementation as HEN, for the purposes of this review, the term is limited to a patient's requiring an enteral access device for the delivery of exogenous nutrients. Complications related to such devices remain a difficult problem in the hospital setting, and these issues are often amplified when encountered in the home setting. Focused multidisciplinary teams and close follow-up are essential in optimizing outcomes for patients receiving HEN, but all healthcare providers should have foundational knowledge regarding commonly encountered complications of HEN access and the initial management of these issues. PMID- 29028448 TI - Characterization of the Stool Microbiome in Hispanic Preschool Children by Weight Status and Time. AB - BACKGROUND: Variations in gut microbiota composition and diversity have been associated with childhood adiposity, although most studies describing this have been cross-sectional in nature. Our objective was to evaluate associations between body weight and the gut microbiota over time in obese preschool-age children. METHODS: Obese, preschool-age, Hispanic children provided stool samples at baseline and following a 6-month behavioral intervention. Normal-weight (NW) children also provided stool samples. Stool microbial community composition was characterized using 16S rRNA gene sequencing. Estimates of within-sample diversity were calculated on operational taxonomic unit (OTU) count data, and the Firmicutes:Bacteroidetes (F:B) ratio was determined on per-sample basis. Estimates of between-sample diversity were generated using the weighted Unifrac metric, differential abundances were evaluated using Wilcoxon rank-sum tests, and associations of microbiome features with clinical data were quantified using Spearman rank correlations. RESULTS: For the 30 obese children sampled preintervention and postintervention, a decrease in body mass index (BMI) z-score from 2.55 to 2.34 (p = 0.004, paired t-test) was observed. Bacteroides massiliensis was significantly enriched in obese children, while B. plebius was significantly enriched in NW controls. We identified significant correlations between multiple Bacteroides-like OTUs and BMI z-score, but neither F:B ratios nor OTU-level abundances were altered in conjunction with weight change in the obese children. Rather, highly individualized OTU-level responses were observed. CONCLUSIONS: Although differences exist between the gut microbiota of obese and NW children, we detected highly individualized responses of the gut microbiota of obese children over time and following weight loss. PMID- 29028449 TI - Geometric Characteristics of the Knee Are Associated With a Noncontact ACL Injury to the Contralateral Knee After Unilateral ACL Injury in Young Female Athletes. AB - BACKGROUND: Contralateral anterior cruciate ligament (CACL) injury after recovery from a first-time ACL rupture occurs at a high rate in young females; however, little is known about the risk factors associated with bilateral ACL trauma. HYPOTHESIS: The geometric characteristics of the contralateral knee at the time of the initial ACL injury are associated with risk of suffering a CACL injury in these female athletes. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Sixty-two female athletes who suffered their first noncontact ACL injury while participating in sports at the high school or college level were identified, and geometry of the femoral notch, ACL, tibial spines, tibial subchondral bone, articular cartilage surfaces, and menisci of the contralateral, uninjured, knee was characterized in 3 dimensions. We were unable to contact 7 subjects and followed the remaining 55 until either a CACL injury or an ACL graft injury occurred or, if they were not injured, until the date of last contact (mean, 34 months after their first ACL injury). Cox regression was used to identify risk factors for CACL injury. RESULTS: Ten (18.2%) females suffered a CACL injury. Decreases of 1 SD in femoral intercondylar notch width (measured at its outlet and anterior attachment of the ACL) were associated with increases in the risk of suffering a CACL injury (hazard ratio = 1.88 and 2.05, respectively). Likewise, 1 SD decreases in medial-lateral width of the lateral tibial spine, height of the medial tibial spine, and thickness of the articular cartilage located at the posterior region of the medial tibial compartment were associated with 3.59-, 1.75-, and 2.15-fold increases in the risk of CACL injury, respectively. CONCLUSION: After ACL injury, subsequent injury to the CACL is influenced by geometry of the structures that surround the ACL (the femoral notch and tibial spines). This information can be used to identify individuals at increased risk for CACL trauma, who might benefit from targeted risk-reduction interventions. PMID- 29028451 TI - Questioning the Goldwater Rule: Commentary on Lilienfeld, Miller, and Lynam. PMID- 29028450 TI - Comparing two approaches of miR-34a target identification, biotinylated-miRNA pulldown vs miRNA overexpression. AB - microRNAs (miRNAs) are critical regulators of gene expression. For elucidating functional roles of miRNAs, it is critical to identify their direct targets. There are debates about whether pulldown of biotinylated miRNA mimics can be used to identify miRNA targets or not. Here we show that biotin-labelled miR-34a can be loaded to AGO2, and AGO2 immunoprecipitation can pulldown biotinylated miR-34a (Bio-miR pulldown). RNA-sequencing (RNA-seq) of the Bio-miR pulldown RNAs efficiently identified miR-34a mRNA targets, which could be verified with luciferase assays. In contrast to the approach of Bio-miR pulldown, RNA-seq of miR-34a overexpression samples had limited value in identifying direct targets of miR-34a. It seems that pulldown of 3'-Biotin-tagged miRNA can identify bona fide microRNA targets at least for miR-34a. PMID- 29028453 TI - A Qualitative Exploration of Adult Baby/Diaper Lover Behavior From an Online Community Sample. AB - This study examined qualitative data on 1,795 male, 139 female, and 78 transgender members of the adult baby/diaper lover (ABDL) online community. Using grounded theory, the analyses examined a description of ABDL practices, explored evidence of subgroups within the ABDL community, and examined the degree to which ABDL behavior involves sexual motivations. Overall, the data suggest there is a fair amount of diversity within the ABDL community. Most participants enjoy wearing diapers or engaging in age regression (as babies or children), and the importance of incontinence may vary. ABDL practices can reflect bondage play for some individuals and a way to cope with medical problems for others. Overall, there is modest evidence of more than two ABDL subgroups. Although a large number of individuals do not see their ABDL practices as sexual in nature, there is a clear contingent that describes sexual motivations. For some, sex during ABDL activity violates conceptions of baby play. Nonsexual motivations include a desire to relax or be carefree as well as a desire to be nurtured. Some diaper lovers and adult babies have the same goals but achieve them in different ways. ABDL practices may be as diverse as seemingly typical sexual behaviors. PMID- 29028452 TI - Atrial Fibrillation in Women: Risks and Management. AB - Atrial fibrillation (AF) is one of the most commonly occurring arrhythmias and a major modifiable risk factor for stroke, especially in women. While its prevalence is similar in both men and women, women unfortunately face a greater intrinsic AF-related risk of stroke than men do. This is likely one of the reasons that more women than men die from strokes, in addition to experiencing more new and recurrent strokes. Therefore, in women especially, it is imperative to diagnose and treat AF as early as possible. While its unreliable symptom profile and possible intermittent nature can make AF difficult to detect, proactive identification of risk factors and improved detection methods can help. Additionally, the use of risk stratification schemes for anticoagulant therapy, along with the efficacy of nonvitamin K antagonist anticoagulants can enable appropriate therapy to prevent stroke occurrence. PMID- 29028454 TI - The Longtan Modification: An Effective and Economical Surgical Innovation for Parastomal Hernia Post-Intraperitoneal Sigmoidostomy. AB - PURPOSE: This study was designed to introduce a new surgical innovation, referred to as the "Longtan modification," for cases with parastomal hernia (PSH) following intraperitoneal sigmoidostomy, and to assess the safety and feasibility of this procedure. METHODS: Between January 2013 and June 2016, a total of 26 consecutive cases with PSH successfully underwent this procedure. The patient demographics, surgical outcomes, stoma-related complications, and the stoma function were collected and analyzed. RESULTS: Mean diameter of the hernia ring was 7.6 cm, mean operation time was 94.2 minutes, and mean intraoperative blood loss was 18.0 mL. The mean period of postoperative hospitalization was 4.4 days while the mean hospitalization cost was only $3,750 USD. There were no severe complications such as postoperative hemorrhage, ischemic necrosis, peritoneal infection, or intestinal obstruction, although one case suffered from postoperative infection at the site of incision. None of the cases had a recurrence of PSH during the follow-up period. In addition, the stoma functioned efficiently and appropriately following the Longtan modification. CONCLUSION: Overall, the Longtan modification appears to be an effective and economical surgical innovation for cases with PSH following intraperitoneal sigmoidostomy. PMID- 29028456 TI - Visual Attention Patterns Differ in Gynephilic and Androphilic Men and Women Depending on Age and Gender of Targets. AB - Visual attention patterns measured with eye-tracking techniques provide indirect clues about sexual response. This study aimed to test the category specificity of sexual responses to stimuli varying in gender and age by evaluating both early and late attention of gynephilic and androphilic men and women. We simultaneously presented sexually preferred and nonpreferred stimuli and measured time to first fixation and total duration of fixation on four areas of interest: entire body, then face, chest, and pelvis. Androphilic women's early attention patterns were nonspecific, whereas gynephilic women and both groups of men showed a category specific pattern for the entire body. In contrast, all groups showed gender specific patterns of late attention for all areas of interest. We also found support for age specificity of early and late visual attention in all four groups, with greater attention to adult than child stimuli. This study supports the usefulness of a competing stimulus eye-tracking paradigm as a method to examine gender specificity in gynephilic women and androphilic and gynephilic men, and as a measure of age specificity in gynephilic and androphilic men and women. PMID- 29028455 TI - Health Indicators for Older Sexual Minorities: National Health Interview Survey, 2013-2014. AB - PURPOSE: Advances in lesbian, gay, and bisexual (sexual minority [SM]) acceptance and equality have been made in the past decade. However, certain SM subgroups continue to be disadvantaged due to lack of data and, thus, lack of knowledge about these populations. Data for older sexual minorities are especially lacking and will be increasingly important as more sexual minorities enter older age. This research explores results from a nationally representative health survey to elucidate some health indicators for older sexual minorities. METHODS: Data from the 2013 and 2014 National Health Interview Surveys (NHIS) were pooled for increased sample size, and established research methods were followed as recommended by prior NHIS sexual orientation studies. We conducted descriptive analyses on the differences between SM and heterosexual groups, aged 65 years and older, for 12 health indicators. RESULTS: Four out of the 12 health indicators were significantly different for sexual minorities, and three out of those four indicated positive health outcomes or behaviors when compared with heterosexuals. Sexual minorities were more than three times as likely to receive HIV testing as heterosexual peers. Sexual minorities were more likely to receive an influenza vaccination, and much more likely to report excellent or very good health, than their heterosexual peers. Sexual minorities were more than twice as likely to report binge drinking, which is consistent with prior research for adult sexual minorities. CONCLUSION: This analysis is the first to examine national data on health indicators for sexual minorities, aged 65 years and older, using NHIS data. As more surveys begin to collect SMdata and more years of data are collected by NHIS, a clearer picture of the health of older adult sexual minorities should emerge. PMID- 29028457 TI - Photocatalytic degradation of P-Cresol using TiO2/ZnO hybrid surface capped with polyaniline. AB - This study evaluated the photocatalytic activity of polyaniline (PANI)-capped titanium dioxide and zinc oxide (TiO2/ZnO) hybrid, for the degradation of P Cresol. The hybrid was synthesized by precipitating ZnO on the surface of commercial TiO2. An "in situ" chemical oxidative polymerization method was used to prepare the PANI capped hybrid (TiO2/ZnO/PANI). The photocatalysts were characterized by powder X-ray diffraction (XRD), a Brunauer Emmett Teller (BET) analyzer, Fourier-transform infrared (FTIR) and photoluminescence spectroscopies, high resolution-transmission electron microscopy (HR-TEM) and thermogravimetric analysis (TGA). During photodegradation under ultraviolet (UV) irradiation, ZnO, TiO2, TiO2/ZnO hybrid and TiO2/ZnO/PANI composite had P-Cresol removal of 43%, 50%, 61% and 99%, respectively. The higher activity of the TiO2/ZnO hybrid as compared to TiO2 and ZnO was attributed to a reduced electron-hole pair recombination. The recombination was further significantly reduced upon introduction of PANI; hence, the highest activity observed with TiO2/ZnO/PANI. The initial reaction rate constant for TiO2/ZnO/PANI (0.9679 min-1) was more than twice compared to that for TiO2/ZnO hybrid (0.1259 min-1). A synergistic effect between PANI and TiO2/ZnO resulted in a highly efficient charge separation caused by the transfer of photogenerated holes from the hybrid to highest occupied molecular orbitals (HOMO) of PANI. The best TiO2/ZnO/PANI (PANI to TiO2/ZnO) ratio observed was 0.5:2 for the photodegradation of P-Cresol. Total organic carbon (TOC) analysis indicated a 97.4% mineralization of P-Cresol with PANI/TiO2/ZnO. PMID- 29028458 TI - Exploring gender and elder abuse from the perspective of professionals. AB - We conducted an online survey of professionals working in two Canadian provinces to learn about their knowledge of elder abuse from a gender-based perspective. A total of 169 professionals (90% women) completed a survey in either French or English. Five topic areas emerged from the analysis: the influence of gender on the risk of abuse; types of abuse detected; knowledge gaps; capacity to respond to gender-based abuse; and awareness of resources. To gain further insight into these results, we conducted three focus groups with a total of 24 professionals. Professionals held relatively little recognition of, or knowledge about, gender related to elder abuse. Our results indicate the need to develop educational and awareness raising opportunities for professionals who work with abused older adults in both French and English to identify and respond to the unique needs of older women and men. PMID- 29028459 TI - Viral Diagnostics. PMID- 29028460 TI - Goldwater Rule: Red Line or Guideline? PMID- 29028461 TI - Antibiotic-Impregnated Central Venous Catheters Do Not Change Antibiotic Resistance Patterns. AB - BACKGROUND: Antibiotic-impregnated central venous catheters (CVCs) decrease the incidence of infection in high-risk patients. However, use of these catheters carries the hypothetical risk of inducing antibiotic resistance. We hypothesized that routine use of minocycline and rifampin-impregnated catheters (MR-CVC) in a single intensive care unit (ICU) would change the resistance profile for Staphylococcus aureus. METHODS: We reviewed antibiotic susceptibilities of S. aureus isolates obtained from blood cultures in a large urban teaching hospital from 2002-2015. Resistance patterns were compared before and after implementation of MR-CVC use in the surgical ICU (SICU) in August 2006. We also compared resistance patterns of S. aureus obtained in other ICUs and in non-ICU patients, in whom MR-CVCs were not used. RESULTS: Data for rifampin, oxacillin, and clindamycin were available for 9,703 cultures; tetracycline resistance data were available for 4,627 cultures. After implementation of MR-CVC use in the SICU, rifampin resistance remained unchanged, with rates the same as in other ICU and non-ICU populations (3%). After six years of use of MR-CVCs in the SICU, the rate of tetracycline resistance was unchanged in all facilities (1%-3%). The use of MR CVCs was not associated with any change in S. aureus oxacillin-resistance rates in the SICU (66% vs. 60%). However, there was a significant decrease in S. aureus clindamycin resistance (59% vs. 34%; p < 0.05) in SICU patients. CONCLUSIONS: Routine use of rifampin-minocycline-impregnated CVCs in the SICU was not associated with increased resistance of S. aureus isolates to rifampin or tetracyclines. PMID- 29028462 TI - Older Adults with Alzheimer's Disease Who Have Used an Automatic Medication Dispenser for 3 or More Years. AB - This article describes four older adults with Alzheimer's disease and comorbidities who used an automatic medication dispenser (AMD) to continue pharmacotherapy for these chronic diseases and who remained at home living either alone or with an older spouse. The AMDs were used for 3 to 4.5 years. The patients scored at least 21 on the Mini-Mental State Examination, and their dosing regimen involved taking the medication once or twice per day throughout this period. The caregivers filled the devices with medications once every 1 to 2 weeks and continuously monitored the patients' conditions nearly every day. Additionally, one caregiver changed how the device is used to accommodate a participant's conditions. As a result of using the device, medication adherence remained good, and caregiver burden was reduced. The results indicate that an AMD can be used as a long-term medication management tool for some older adults with dementia when caregivers provide continued support, as described above. Further research is needed to clarify the necessary conditions for using an AMD and to identify benefits for older adults with dementia to use AMDs to take medication on a long-term basis. PMID- 29028463 TI - Assessing adult attention deficit hyperactivity disorder (ADHD) in the university setting. AB - OBJECTIVE: To address the increasing demand for assessments of Adult Attention Deficit Hyperactivity Disorder (ADHD), the primary author developed a protocol for Counseling and Psychological Services (CAPS) at Stanford University's Vaden Student Health Center to improve the efficiency of such evaluations. PARTICIPANTS: As part of quality assurance, we reviewed the charts of Stanford students who sought assessment for ADHD before the protocol was implemented (September 2011-June 2013) and after the protocol was established (October 2013 August 2014). An IRB exemption was obtained. METHODS: The protocol includes questionnaires that solicit detailed clinical information from a variety of sources prior to the student's initial visit. RESULTS: A peer chart review of 35 randomly selected charts showed that students completing the protocol are receiving a more thorough assessment. CONCLUSION: The new Stanford ADHD protocol, designed to improve clinic efficiency, also increases the availability of relevant clinical information. PMID- 29028464 TI - Should Physicians Consider the Environmental Effects of Prescribing Antibiotics? AB - Pharmaceuticals are beginning to receive attention as a source of pollution in aquatic environments. Yet the impact of physician prescription patterns on water resources is not often discussed in clinical decision making. Here, we comment on a case in which empiric antibiotic treatment might benefit a patient while simultaneously being detrimental to the aquatic environment. We first highlight the potential harm caused by this prescription from its production to its disposal. We then suggest that Van Rensselaer Potter's original conceptualization of bioethics can be used to balance clinicians' obligations to protect individual, public, and environmental health. PMID- 29028465 TI - Cultivating Humility and Diagnostic Openness in Clinical Judgment. AB - In this case, a physician rejects a patient's concerns that tainted water is harming the patient and her community. Stereotypes and biases regarding socioeconomic class and race/ethnicity, constraining diagnostic frameworks, and fixed first impressions could skew the physician's judgment. This paper narratively illustrates how cultivating humility could help the physician truly hear the patient's suggestions. The discussion builds on the multifaceted concept of cultural humility as a lifelong journey that addresses not only stereotypes and biases but also power inequalities and community inequities. Insurgent multiculturalism is a complementary concept. Through epistemic humility-which includes both intellectual and emotional components-and admitting uncertainty, physicians can enhance patients' and families' epistemic authority and health agency. PMID- 29028466 TI - Is Acute Care-Oriented Research Ethical in Resource-Limited Settings? AB - In this case scenario, a medical student, Jenny, is conducting congenital heart disease research in a resource-limited setting faced with water insecurity. She has concerns about how ethical it is for her to conduct advanced clinical research in a region with more basic health needs. The first commentary argues that advanced clinical research in resource-limited settings follows the ethical principle of beneficence and interactional justice but violates the principle of distributive justice. The second commentary questions whether beneficence is enough, since the Belmont Report states that beneficence is the obligation to simultaneously reduce harm and increase benefit. It calls upon public health physician-scientists to think deeply about how to involve communities in their research-and how to insert themselves into health policy development processes. PMID- 29028467 TI - Expanding Ethics Review Processes to Include Community-Level Protections: A Case Study from Flint, Michigan. AB - As the Flint community endeavors to recover and move forward in the aftermath of the Flint water crisis, distrust of scientific and governmental authorities must be overcome. Future community engagement in research will require community-level protections ensuring that no further harm is done to the community. A community ethics review explores risks and benefits and complements institutional review board (IRB) review. Using the case of Flint, I describe how community-level ethical protections can reestablish a community's trust. All IRBs reviewing protocols that include risk to communities and not merely individual participants should consider how community members are engaged in the proposed research and identify and respond to questions and domains of concern from community members. PMID- 29028468 TI - Lessons for Physicians from Flint's Water Crisis. AB - Physicians form a vital front in recognizing unusual clinical presentations that could herald a health threat. In the Flint water crisis, physicians can be credited with playing critical roles in both uncovering the crisis and providing leadership when government failed to respond effectively. Yet most physicians in Flint were not formally trained in advocacy or leadership and might have recognized the health implications of the crisis more quickly had they received formal environmental health training. Furthermore, connections to other professional disciplines-and to the community-are vital for effective responses to environmental health threats. We explore some lessons learned in Flint that might help expedite resolution of future environmental health crises, particularly those involving aging infrastructure and diminished or dysfunctional regulation or oversight. PMID- 29028469 TI - The Importance of Clinicians and Community Members Receiving Timely and Accurate Information about Waterborne Hazards. AB - It is important for clinicians and community members to receive up-to-date information about the microbiological and elemental composition of local water supplies. Clinicians play an important role in helping their patients to interpret water quality data and understand the potential impact of water quality on their health. Expanding the medical school curriculum to include environmental health, public health, and health disparities-including disparities related to environmental quality and waterborne hazards-is key to clinicians' fulfilling this role. PMID- 29028470 TI - The Safe Drinking Water Act of 1974 and Its Role in Providing Access to Safe Drinking Water in the United States. AB - In 1974, President Gerald Ford signed into law the Safe Drinking Water Act, the first piece of legislation of its kind to provide a comprehensive regulatory framework for overseeing the nation's drinking water supply. The law has proven instrumental in setting standards for ensuring that the US population can access drinking water that is safe. However, the law delegates much of its monitoring requirements to states, creating, at times, a confusing and complicated system of standards that must be adhered to and enforced. Although it has proven valuable in the safety standards it specifies, the law's administration and enforcement poses tremendous challenges. PMID- 29028471 TI - Water Safety and Lead Regulation: Physicians' Community Health Responsibilities. AB - This article reviews the regulation of lead in drinking water, highlighting its epidemiological, engineering, and ethical aspects with a focus on the Flint water crisis. We first discuss water quality policy and its implementation with a focus on lead contamination of water, primarily from pipe systems between a water treatment facility and a tap. We then discuss physicians' roles and ethical responsibilities regarding safe drinking water using a human rights framework. We argue that physicians can play an important role in safeguarding drinking water in their communities by being vigilant, honoring the community's trust in them, and warning, educating, and empowering patients and broader communities so as to protect tap water safety and public health. PMID- 29028472 TI - Waterborne. AB - These photos capture the Flint water crisis from the perspective of a photographer and cinematographer who is a resident of Flint. They represent citizens' struggles, town hall meetings, and some of the city's repair efforts. They also illuminate environmental injustice as a violation of human rights. PMID- 29028473 TI - Elder Self-Neglect: Another Ethical Dilemma for Physicians. PMID- 29028474 TI - Capacity Determinations and Elder Self-Neglect. PMID- 29028475 TI - Response to "What Should Physicians Do When They Disagree, Clinically and Ethically, with a Surrogate's Wishes?" PMID- 29028479 TI - Peer Review in Scientific Scholarship. PMID- 29028477 TI - Modulation of the NF-kappaB signaling pathway by the HIV-2 envelope glycoprotein and its incomplete BST-2 antagonism. AB - The HIVs have evolved by selecting means to hijack numerous host cellular factors. HIVs exploit the transcription factor NF-kappaB to ensure efficient LTR driven gene transcription. However, NF-kappaB is primarily known to act as a key regulator of the proinflammatory and antiviral responses. Interestingly, retroviruses activate NF-kappaB during early stages of infection to initiate proviral genome expression while suppressing it at later stages to restrain expression of antiviral genes. During HIV-1 infection, diverse viral proteins such as Env, Nef and Vpr have been proposed to activate NF-kappaB activity, whereas Vpu has been shown to inhibit NF-kappaB activation. It is still unclear how HIV-2 regulates NF-kappaB signaling pathway during its replication cycle. Here we confirm that human BST-2 and HIV-1 Env proteins can trigger potent activation of NF-kappaB. Importantly, we demonstrate for the first time that the HIV-2 Env induces NF-kappaB activation in HEKappa293T cells. Furthermore, the anti-BST-2 activity of the HIV-2 Env is not sufficient to completely inhibit NF kappaB activity. PMID- 29028476 TI - Differential interaction between human and murine Crm1 and lentiviral Rev proteins. AB - Mice have multiple obstacles to HIV replication, including a block of unspliced and partially spliced viral mRNA nuclear export. In human, Rev binds to the Rev response element and human (h) Crm1, facilitating nuclear export of RRE containing viral RNAs. Murine (m) Crm1 is less functional than hCrm1 in this regard. Here we demonstrated that in biochemical experiments mCrm1 failed to interact with HIV Rev whereas hCrm1 did. In genetic experiments in human cells, we observed a modest but significant differential effect between mCrm1 and hCrm1, which was also true of other lentiviral Revs tested. Triple mutant hCrm1 P411T M412V-F414S behaved similarly to mCrm1, whereas mCrm1 with T411P-V412M-S414F regained some activity, although contribution of additional residues to its function can not be excluded. Similar results were observed in murine cells. This suggests a differential interaction between hCrm1 and mCrm1 and many lentiviral Revs, which may partially explain the HIV replicative defect in mice. PMID- 29028480 TI - WITHDRAWN: Revisiting the cholinergic hypothesis in Alzheimer's disease: Emerging evidence from translational and clinical research. 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- 29028481 TI - Neuropsychiatric symptoms as risk factors of dementia in a Mexican population: A 10/66 Dementia Research Group study. AB - INTRODUCTION: Cognitive and/or memory impairment are the main clinical markers currently used to identify subjects at risk of developing dementia. This study aimed to explore the relationship between the presence of neuropsychiatric symptoms and dementia incidence. METHODS: We analyzed the association between neuropsychiatric symptoms and incident dementia in a cohort of 1355 Mexican older adults from the general population over 3 years of follow-up, modeling cumulative incidence ratios using Poisson models. RESULTS: Five neuropsychiatric symptoms were associated with incident dementia: delusions, hallucinations, anxiety, aberrant motor behavior, and depression. The simultaneous presence of two symptoms had a relative risk, adjusted for mild cognitive impairment, diabetes, indicators of cognitive function, and sociodemographic factors, of 1.9 (95% confidence interval, 1.2-2.9), whereas the presence of three to five, similarly adjusted, had a relative risk of 3.0 (95% confidence interval, 1.9-4.8). DISCUSSION: Neuropsychiatric symptoms are common in predementia states and may independently contribute as risk factors for developing dementia. PMID- 29028482 TI - Adiposity phenotypes are associated with type-2 diabetes: LAP index, body adiposity index, and neck circumference. AB - BACKGROUND AND AIMS: Adiposity phenotypes can be detected by anthropometric indexes associated with type-2 diabetes mellitus (T2DM). Besides body mass index (BMI) and waist circumference (WC), new indices seem to be able to identify T2DM. This study aimed to evaluate independent associations of T2DM with lipid accumulation product (LAP index), neck circumference (NC) and body adiposity index (BAI) in patients with hypertension. METHODS: A cross-sectional study was carried out among 430 patients with hypertension. The T2DM diagnosed was standardized. WC and NC (cm) were measured and BMI was calculated. LAP index was calculated separately for men [(WC-65) * TG] and women [(WC-58) * TG]; BAI was evaluated in percentiles according to hip (cm)/[height (m)1.5]-18. RESULTS: Participants were aged 58.3 +/- 11.7 years, had systolic blood pressure (SBP) 154.2 +/- 24.9 mmHg, diastolic blood pressure (DBP) 89.0 +/- 14.7 mmHg, and BMI 30.1 +/- 6.0 kg/m2. There was 145 men and 285 women, and 142 participants had T2DM. Analyses carried out separately by gender showed that among men, BAI at the 75th percentile increased about 60% the risk of T2DM, while among women, those in the upper quartile of LAP and NC had increased risk of T2DM (prevalence ratio (PR): 2.93; 95%CI: 1.62-5.28 and 3.30; 95%IC: 1.78-6.14, respectively), after adjustment for potential confounders. CONCLUSIONS: Adiposity phenotypes such as LAP index and neck circumference were independently associated with T2DM in hypertensive women, and BAI was associated with T2DM in men. PMID- 29028483 TI - Circulating levels of sgp130 and sex hormones in male patients with coronary atherosclerotic disease. AB - BACKGROUND AND AIMS: Inflammation and endocrine disorders are considered as major pathogenic factors of coronary atherosclerotic disease (CAD). Sgp130, a natural antagonist of IL-6 trans-signaling, and sex hormones, especially testosterone and estradiol, are prominently considered as anti-atherosclerotic. The aim of this study was to investigate the possible association between serum sgp130 and testosterone and estradiol in male CAD patients. METHODS: A total of 254 male patients with CAD and 122 male controls were recruited for this study. Circulating IL-6, sIL-6, sgp130 were measured by an enzyme-linked immunosorbent assay. Serum concentrations of hs-CRP, testosterone, estradiol, and other routine biochemical markers were also quantified. Besides, we observed the effects of testosterone and estradiol on sgp130 in HUVECs. RESULTS: Serum levels of sgp130, testosterone and estradiol and the ratio of testosterone and estradiol (T/E2) were obviously decreased in CAD patients compared with controls. Pearson correlation analysis showed that serum sgp130 levels had positive correlations with testosterone (r = 0.295, p < 0.001) and estradiol (r = 0.338, p < 0.001) levels in CAD patients. In addition, multiple regression analysis indicated that serum sgp130 was positively associated with estradiol (beta-coefficient = 0.450, p < 0.001) and T/E2 ratio (beta-coefficient = 0.257, p = 0.001). Furthermore, basic studies found that supernatant sgp130 levels of HUVECs were significantly increased by the cooperativity of testosterone and estradiol. CONCLUSIONS: Low levels of serum sgp130 were positively associated with sex hormones in male patients with CAD, suggesting an important role of sgp130 in the presence of low and imbalanced sex hormones levels. Thus, regulation of sgp130 levels by rebalancing sex hormones has the potential to be a novel therapeutic for the treatment of CAD. PMID- 29028484 TI - Cholesterol target value attainment and lipid-lowering therapy in patients with stable or acute coronary heart disease: Results from the Dyslipidemia International Study II. AB - BACKGROUND AND AIMS: Low-density lipoprotein cholesterol (LDL-C) is a major contributor to cardiovascular disease. In the Dyslipidemia International Study II (DYSIS II), we determined LDL-C target value attainment, use of lipid-lowering therapy (LLT), and cardiovascular outcomes in patients with stable coronary heart disease (CHD) and those suffering from an acute coronary syndrome (ACS). METHODS: DYSIS II included patients from 18 countries. Patients with either stable CHD or an ACS were enrolled if they were >=18 years old and had a full lipid profile available. Data were collected at a physician visit (CHD cohort) or at hospital admission and 120 days later (ACS cohort). RESULTS: A total of 10,661 patients were enrolled, 6794 with stable CHD and 3867 with an ACS. Mean LDL-C levels were low at 88 mg/dl and 108 mg/dl for the CHD and ACS cohorts respectively, with only 29.4% and 18.9% displaying a level below 70 mg/dl. LLT was utilized by 93.8% of the CHD cohort, with a mean daily statin dosage of 25 +/- 18 mg. The proportion of the ACS cohort treated with LLT rose from 65.2% at admission to 95.6% at follow-up. LLT-treated patients, who were female, obese, or current smokers, were less likely to achieve an LDL-C level of <70 mg/dl, while those with type 2 diabetes, chronic kidney disease, or those taking a higher statin dosage were more likely. CONCLUSIONS: Few of these very high-risk patients achieved the LDL-C target, indicating huge potential for improving cardiovascular outcome by use of more intensive LLT. PMID- 29028485 TI - A study on beta-glucan binding protein (beta-GBP) and its involvement in phenoloxidase cascade in Indian white shrimp Fenneropenaeus indicus. AB - The present study reports the purification of novel immune molecule beta-1, 3 glucan binding protein from the heamolymph of the Indian white shrimp, Fenneropenaeus indicus (Fibeta-GBP). The purified Fibeta-GBP had 95kDa molecular weight in SDS-PAGE analysis. MALDI-TOF/TOF analysis revealed that the purified Fibeta-GBP showed similarity to various crustacean proteins; 48 and 46% similarity was observed for beta-1, 3 glucan binding protein of Chinese white shrimp Fenneropenaeus chinensis and banana shrimp Fenneropenaeus merguiensis, with MOWSE score of 3.11e+12 and 2.05e+8, respectively. The phenoloxidase activity (PO) of Fibeta-GBP was evaluated and, in the presence of laminarin, PO activity increased significantly. Substrate specificity assay demonstrated that Fibeta-GBP had the specific binding site for soluble or insoluble beta-glucan (laminarin), since the PO activity increased in the presence of laminarin when compared to other sugars. Enzymatic activities revealed that the optimum temperature and pH for Fibeta-GBP activating PO were 40 degrees C and pH 7-8. Moreover, even at 100 degrees C Fibeta-GBP enhanced PO activity highlighting that Fibeta-GBP was thermostable and thermophilic in nature. Among various divalent metallic ions, Fibeta-GBP significantly promoted the PO activity in presence of Mg2+ and Ca2+. The breakdown of para nitroanilide from Nalpha-Benzoyl-l-Arginine 4-Nitroanilide hydrochloride showed that serine protease activity was induced by Fibeta-GBP and also increased concentration of Fibeta-GBP evoked the activity. Furthermore, hemolytic activity tests revealed that PO reaction product induced RBC membrane damage and cell shrinkage. Lastly, Baclight bacterial viability assays showed maximum killing effect of PO reaction product on both Gram positive and Gram negative bacteria. PMID- 29028486 TI - A point mutation in the extracellular domain of CD4 completely abolishes CD4 T cell development in C57BL/6 mouse. AB - In this study, we performed ENU mutagenesis and multi-parameter flow cytometric analysis in C57BL/6 mice to uncover novel genes or alleles regulating immune cell development. We identified a novel mutant allele of Cd4 gene which completely blocked development of a major subset of T cells named CD4 T cell. Our data for the first time showed experimentally in mice the critical role of the first extracellular domain, by obtaining mice with a loss of function mutation from Ile to Asn at the position 99 of CD4 (I99N). Interestingly, such CD4I99N mutant protein can be expressed on the surface of human cells, and the mRNA stability could be also affected by this point mutation, suggesting that absence of CD4 T cells in mice rooted in the deficiency in function and expression of CD4. In addition, we used this novel CD4 T cell deficient model as recipient mice for adoptive transfer experiment, and showed that it could be an optimal model for study of CD4 T cells. PMID- 29028487 TI - Ziram, a dithiocarbamate fungicide, exhibits pseudo-cytoprotective actions against oxidative stress in rat thymocytes: Possible environmental risks. AB - Ziram, a dithiocarbamate fungicide, protects various vegetables and fruits against infections by fungus. Recently, there have been increasing anxieties about the risks in the use of dithiocarbamate fungicides. Our previous studies showed that Zn2+ was a determinant of Ziram cytotoxicity. In addition, Zn2+ is linked to H2O2 cytotoxicity. Therefore, in this study, we aimed to test the hypothesis that Ziram could augment the cytotoxicity of H2O2 by examining the changes induced by Ziram in some cellular parameters in rat thymic lymphocytes subjected to H2O2-induced oxidative stress using flow-cytometric methods with fluorescent dyes. Ziram significantly attenuated H2O2-induced cell death at sublethal concentrations. However, in the cells under oxidative stress elicited by H2O2, Ziram promoted the changing over from intact cells to living cells with exposed phosphatidylserine (PS) on plasma membranes, whereas it inhibited the transition from PS-exposed living cells to dead cells. Ziram significantly augmented H2O2 actions, including reduction of cellular glutathione levels and elevation of intracellular Zn2+ concentrations. Conversely, it attenuated H2O2 induced depolarization of mitochondrial membrane potential. Ziram at sublethal concentrations seems to exhibit promotive and suppressive actions on the process of cell death caused by H2O2. Ziram increased the number of living cells with exposed PS, a phenomenon characteristic of early stages of apoptosis. Thus, it is concluded that Ziram exhibits pseudo-cytoprotective actions against H2O2-induced oxidative stress. Ziram at sublethal concentrations exerts promotive and suppressive actions on the process of cell death caused by oxidative stress. PMID- 29028489 TI - Assessment of types of synthetic cannabinoids in narcotic cases assessed by the Council of Forensic Medicine between 2011-2015, Ankara, Turkey. AB - Synthetic cannabinoids mimic the effects of cannabis and are the largest and fastest growing class of newly appearing designer drugs. Reports have revealed that various types of synthetic cannabinoids are mixed with herbal substances. The present study investigated the herbal substance cases involving synthetic cannabinoids in Ankara and nearby cities in Turkey. Data were collected from the reports of synthetic cannabinoids that were analyzed between January 01, 2011 and December 31, 2015 in the Ankara Narcotic Department of the Council of Forensic Medicine at the request of the judicial authorities. In all, 4610 narcotic reports were obtained and reviewed. Among these narcotic reports during the period, 370 reports (8%) were related to synthetic cannabinoids. 28 synthetic cannabinoid compounds could be identified in herbals: 5-F-AB-PINACA, 5-F-AKB-48, 5-F-NNEI, 5-F-PB-22, AB-CHMINACA, AB-FUBINACA, AB-PINACA, ADB-CHMINACA, ADB FUBINACA, AKB-48, AM-2201, EAM-2201, JWH-018, JWH-022, JWH-031, JWH-122, JWH-201, JWH-210, JWH-250, JWH-251, JWH-307, MAM-2201, NM-2201, PB-22, RCS-4, THJ-2201, UR 144, XLR-11. The amount of herbals was 30.72g, 329.22g, 665.89g, 4844.7g, and 5684.3g in 2011, 2012, 2013, 2014, and 2015, respectively. Generally, herbals contained more than one synthetic cannabinoids. ADB-FUBINACA was the most common synthetic cannabinoid among the herbals determined in this study, which was 3132.43g, excepting multi-synthetic cannabinoid herbals. The amount and diversity of synthetic cannabinoid compounds have increased dramatically between 2011 and 2015. PMID- 29028488 TI - Prenatal phthalate exposure and placental size and shape at birth: A birth cohort study. AB - OBJECTIVE: There is concern over the potential placental effects of prenatal phthalate exposure, and the potential adverse effects of prenatal phthalate exposure require further study; however, few data are available in humans. We investigated the associations between phthalate exposure in each trimester and both placental size and shape at birth. METHODS: We measured the urinary concentrations of phthalate metabolites among 2725 pregnant women in the Ma'anshan Birth Cohort. Before collecting urine samples from each of the three trimesters, the pregnant women were interviewed via questionnaires. Placental information was obtained from hospital records. We estimated the sex-specific associations between urinary phthalate concentrations in each trimester and both placental size and shape at birth using adjusted multiple regression. A linear mixed model was used for the repeated measures analysis with subject-specific random intercepts and slopes for gestational age at sample collection to test the effect of phthalate levels on placental size and shape and to estimate the effect sizes. RESULTS: Overall, placental breadth increased by 0.148cm (95% CI: 0.078, 0.218) with each 1 ln-concentration increase in MBP in the first trimester. The difference between placental length and breadth (length-breadth) decreased by 0.086cm (95% CI: -0.159, -0.012) and 0.149cm (95% CI: -0.221, -0.076) with each 1 ln-concentration increase in MMP and MBP, respectively, in the first trimester. In the second trimester, placental thickness increased by 0.017cm (95% CI: 0.006, 0.027), 0.020cm (95% CI: 0.004, 0.036), 0.028cm (95% CI: 0.007, 0.048), and 0.035cm (95% CI: 0.018, 0.053) with each 1 ln-concentration increase in MMP, MBP, MEOHP, and MEHHP, respectively. In the third trimester, placental thickness increased by 0.037cm (95% CI: 0.019, 0.056) and 0.019cm (95% CI: 0, 0.037) with each 1 ln-concentration increase in MBP and MEHP, respectively. Multiple linear regression for each offspring sex indicated that prenatal phthalate exposure increased placental thickness in both the first and second trimesters in males, whereas the corresponding relationship was close to null in females. Linear mixed models (LMMs) yielded similar results. CONCLUSION: Our results suggest the presence of associations between prenatal phthalate exposure and placental size and shape. Exposure to certain phthalates may cause the placenta to become thicker and more circular. Associations appeared stronger for the subsample representing male offspring than those for the subsample representing female offspring. Given the few studies on this topic, additional research is warranted. PMID- 29028490 TI - Differentiation of red lipsticks using the attenuated total reflection technique supported by two chemometric methods. AB - The main challenge for the identification and differentiation of lipsticks for forensic purposes is the fact that they have a similar chemical composition - in particular, samples of the same hue. The objective of the presented research was to solve this problem using a nondestructive analytical technique - attenuated total reflection spectroscopy (ATR). 38 red lipsticks produced by 20 different manufacturers were examined in optimized experimental conditions. To facilitate discrimination and provide more extensive analyses of the obtained data, two chemometric techniques: principal component analysis and cluster analysis were used. Ultimately, nine groups of investigated lipstick samples with comparable chemical compositions were differentiated. Moreover, lipstick smears on six different interfering surfaces were analyzed and spectral subtraction was performed in order to identify individual samples. The established approach succeeded in identifying the index number and the manufacturer of the samples by using an in-lab built ATR spectra library. The developed method demonstrates a great potential for the differentiation and identification of red lipsticks with a very similar hue. It also seems to have good prospects for future application in forensic science investigations. PMID- 29028491 TI - Boron removal from hydraulic fracturing wastewater by aluminum and iron coagulation: Mechanisms and limitations. AB - One promising water management strategy during hydraulic fracturing is treatment and reuse of flowback/produced water. In particular, the saline flowback water contains many of the chemicals employed for fracking, which need to be removed before possible reuse as "frac water." This manuscript targets turbidity along with one of the additives; borate-based cross-linkers used to adjust the rheological characteristics of the frac-fluid. Alum and ferric chloride were evaluated as coagulants for clarification and boron removal from saline flowback water obtained from a well in the Eagle Ford shale. Extremely high dosages (> 9000 mg/L or 333 mM Al and 160 mM Fe) corresponding to Al/B and Fe/B mass ratios of ~70 and molar ratios of ~28 and 13 respectively were necessary to remove ~80% boron. Hence, coagulation does not appear to be feasible for boron removal from high-strength waste streams. X-ray photoelectron spectroscopy revealed BO bonding on surfaces of freshly precipitated Al(OH)3(am) and Fe(OH)3(am) suggesting boron uptake was predominantly via ligand exchange. Attenuated total reflection-Fourier transform infrared spectroscopy provided direct evidence of inner-sphere boron complexation with surface hydroxyl groups on both amorphous aluminum and iron hydroxides. Only trigonal boron was detected on aluminum flocs since possible presence of tetrahedral boron was masked by severe AlO interferences. Both trigonal and tetrahedral conformation of boron complexes were identified on Fe(OH)3 surfaces. PMID- 29028492 TI - Modelling an industrial anaerobic granular reactor using a multi-scale approach. AB - The objective of this paper is to show the results of an industrial project dealing with modelling of anaerobic digesters. A multi-scale mathematical approach is developed to describe reactor hydrodynamics, granule growth/distribution and microbial competition/inhibition for substrate/space within the biofilm. The main biochemical and physico-chemical processes in the model are based on the Anaerobic Digestion Model No 1 (ADM1) extended with the fate of phosphorus (P), sulfur (S) and ethanol (Et-OH). Wastewater dynamic conditions are reproduced and data frequency increased using the Benchmark Simulation Model No 2 (BSM2) influent generator. All models are tested using two plant data sets corresponding to different operational periods (#D1, #D2). Simulation results reveal that the proposed approach can satisfactorily describe the transformation of organics, nutrients and minerals, the production of methane, carbon dioxide and sulfide and the potential formation of precipitates within the bulk (average deviation between computer simulations and measurements for both #D1, #D2 is around 10%). Model predictions suggest a stratified structure within the granule which is the result of: 1) applied loading rates, 2) mass transfer limitations and 3) specific (bacterial) affinity for substrate. Hence, inerts (XI) and methanogens (Xac) are situated in the inner zone, and this fraction lowers as the radius increases favouring the presence of acidogens (Xsu,Xaa, Xfa) and acetogens (Xc4,Xpro). Additional simulations show the effects on the overall process performance when operational (pH) and loading (S:COD) conditions are modified. Lastly, the effect of intra-granular precipitation on the overall organic/inorganic distribution is assessed at: 1) different times; and, 2) reactor heights. Finally, the possibilities and opportunities offered by the proposed approach for conducting engineering optimization projects are discussed. PMID- 29028493 TI - Zeolite-supported nanoscale zero-valent iron: New findings on simultaneous adsorption of Cd(II), Pb(II), and As(III) in aqueous solution and soil. AB - Nanoscale zero-valent iron (NZVI) has a high adsorption capacity for heavy metals, but it forms aggregates easily. In this study, zeolite-supported nanoscale zero-valent iron (Z-NZVI) was synthesized from a simplified liquid phase reduction of iron(III) salts which simultaneously adsorbed As(III), Cd(II) and Pb(II) from aqueous solution and soil. Scanning electron micrographs showed that aggregation was eliminated and the NZVI evenly dispersed onto the surface of zeolite. FTIR spectra reveal that NZVI was protected from oxidization on the surface of Z-NZVI. XRD and XPS patterns confirmed the formation of Cd(OH)2, Pb0, and FeAsO4 in Z-NZVI after adsorption. The experimental maximum adsorption capacity of Z-NZVI was 11.52mg As(III)/g, 48.63mg Cd(II)/g, and 85.37mg Pb(II)/g at pH 6, respectively, much higher than that of zeolite. Batch experiments indicate that various adsorption mechanisms including electrostatic adsorption, ionic exchange, oxidation, reduction, co-precipitation, and complexation coexisted with the selected heavy metals. Due to the formation of multiphase compounds on the Z-NZVI, the synergy and competition among heavy metals were concurrent. Most arsenic, cadmium and lead in the soil samples were immobilized after mixing with 30g/kg Z-NZVI. These results suggest that Z-NZVI has great potential for treating water and soil multi-contaminated with heavy metals. PMID- 29028494 TI - Surfactants selectively reallocated the bacterial distribution in soil bioelectrochemical remediation of petroleum hydrocarbons. AB - Soil contaminated by aged petroleum hydrocarbons is faced with scarcity of electron acceptors, low activity of functional microbes and inefficient electron transfer, which hinder the bioremediation application. The soil microbial fuel cell (MFC) simultaneously solves these problems with bioelectricity production. In this study, five types of surfactants were introduced to enhance the bioavailability of aged petroleum hydrocarbon in soils. The ampholytic surfactant (lecithos) was optimal due to the highest bioelectricity generation (0.321Cd-1g 1) and promoted hydrocarbon degradation (328%), while the nonionic (glyceryl monostearate) and cationic (cetyltrimethylammonium bromide) surfactants were inefficient. The surfactants induced a special microbial enrichment affiliated with Proteobacteria, Firmicutes, Bacteroidetes, Actinobacteria, Chloroflexi, Planctomycetes and Acidobacteria (93%-99% of total) in soil MFCs. The anionic surfactant (sodium dodecyl sulfate) exhibited the strongest selectivity, and alpha-proteobacteria and gamma-proteobacteria abundances decreased while Clostridia increased, much like the result obtained with the biosurfactant beta cyclodextrin. Furthermore, Bacillus abundance was increased in connected soil MFCs, except addition of lecithos in which Clostridium increased to 14.88% from 3.61% in the control. The high correlations among Bacillus, Phenylobacterium, Solibacillus (0.9162-0.9577) and among Alcaligenes, Dysgonomonas, Sedimentibacter (0.9538-0.9966) indicated a metabolic network of microorganisms in the soil bioelectrochemical remediation system. PMID- 29028495 TI - Non-cytotoxic effect of green synthesized silver nanoparticles and its antibacterial activity. AB - Silver nanoparticles (AgNPs) were green synthesized using ethanolic extract of fenugreek leaves and characterized using UV-Vis spectroscopy, Fourier transform infra-red spectroscopy (FTIR), X-ray diffraction (XRD), high resolution transmission electron microscopy HRTEM and energy dispersive X-ray analysis (EDX) techniques. The HRTEM results revealed the formation of highly stable, mono dispersed, spherical shaped AgNPs with the size ranging from 20 to 30nm. The presence of flavonoids and their interaction with the AgNPs were confirmed using FTIR. Antibacterial activities of the AgNPs were studied against pathogenic gram positive Staphylococcus aureus (S. aureus) and gram negative Escherichia coli (E. coli) bacteria. The synthesized AgNPs displayed the enhancement of antibacterial activity against E. coli. The morphological changes in the bacterial cell membrane was observed using SEM analysis. Leakage of protein from the bacterial cells increased at every time intervals (2 and 4h). MTT assay was carried out for the AgNPs against human skin cell line (HaCaT). Interestingly, cytotoxicity of the synthesized AgNPs was less toxic to HaCaT cells as compared to bacteria cells, which suggests that the synthesized AgNPs by this method is eco-friendly in nature. PMID- 29028496 TI - Are the damaging effects induced by the imazethapyr formulation Pivot(r) H in Boana pulchella (Anura) reversible upon ceasing exposure? AB - In the present study, the damage recovery capabilities of Boana pulchella tadpoles after acute exposure (96h) to 0.39mg/L concentration of the imazethapyr (IMZT)-based herbicide formulation Pivot(r) H (25% IMZT LC50 value) were assessed during a period of 7 to -21 days. To appraise the recovery capabilities, frequency of micronuclei (MNs), other nuclear abnormalities and DNA single-strand breaks evaluated by single cell gel electrophoresis assay on circulating blood cells were employed as endpoints for genotoxicity. Growth, development, body mass, and morphological abnormalities were also employed as individual endpoints in the recovery assay. Results demonstrated that IMZT induced sublethal effects at both the individual (i.e., loss of keratodonts) and cytogenetic levels (e.g., increase of MN frequency, other nuclear abnormalities and DNA single-strand breaks). At 11 days of the exposure phase, tadpoles recovered their basal levels of frequency of MNs, other nuclear abnormalities, and comets. However, loss of keratodonts, observed at the end of the exposure period, was present up to 21 days thereafter. Finally, axial abnormalities and delay in development stage were observed only during the postexposure phase in IMZT-exposed tadpoles at 18 and 25 days, respectively and were observed until the end of the experiment. This is the first evidence of use the comet assay as cytogenetic biomarker of genotoxicity in evaluating the recovery capabilities of amphibians in general and also those of B. pulchella after exposure to IMZT. PMID- 29028497 TI - Aquatic macroinvertebrate assemblages are affected by insecticide applications on the Argentine Pampas. AB - Agriculture intensification in Argentina has increased agrochemicals consumption in the last decades and might represent an environmental risk for adjacent water bodies. The objective of the present work was to assess the effect of land use on water quality and invertebrate assemblages in the Argentine Pampas streams. Eight streams were sampled on 4 occasions during the 2013/14 growing season. Three streams are located within a biosphere reserve, two drain basins with extensive livestock fields, and three run through intensively cultivated plots; one of them contained a 30m wide uncultivated grass-covered strip between the crop and the stream. Macroinvertebrates were sampled from emergent vegetation by means of a D net with a 500um pore size, and 30cm diameter. Higher nutrient concentrations were measured in the agricultural streams. Endosulfan was measured in sediments of the agricultural streams, concentrations being significantly lower in the stream with the buffer strip. Invertebrate assemblages in the cropped streams were significantly different from those in the livestock and reserve streams, those in the latter not being different from each other. Ampullaridae (Pomacea canaliculata) and Planorbidae (Biomophalaria peregrina) were the taxa best represented in the agricultural streams. Hyalellidae (Hyalella curvispina), Zygoptera and Planorbidae (B. peregrina) were the taxa best represented in the reserve and livestock streams. Present evidence suggests that the observed differences in the invertebrate composition in the agricultural streams were related with the impact of agrochemicals and that buffer strips represent a useful attenuation practice. Cattle breeding on natural pastures represented a land use with low impact on the invertebrate assemblages. PMID- 29028498 TI - Spinal segmental myoclonus resembling "belly dance" in a pregnant woman. PMID- 29028499 TI - Fasciculations in nerve and muscle disorders - A prospective study of muscle ultrasound compared to electromyography. AB - OBJECTIVES: We examined the clinical utility of muscle ultrasound (MUS) in detecting fasciculations in patients with nerve and muscle disorders (NMD) and investigated the impact on diagnostic sensitivity when combining electromyography (EMG) and MUS. METHODS: We included 58 consecutive patients suspected to have NMD and 38 healthy subjects (HS). Patients and HS underwent MUS in 14 skeletal and two bulbar muscles and the video recordings of the MUS were anonymised. Only patients underwent EMG. RESULTS: The follow-up diagnoses were: 15 Amyotrophic lateral sclerosis (ALS), 15 polyneuropathy, 14 patients had other diagnoses (disease-control group) and 14 patients had no pathological findings. MUS detected more muscles with fasciculations among ALS patients compared to all other groups. In ALS patients, the dominating pattern of fasciculations was continuous (45%). More proximal muscles showed fasciculations among ALS patients compared to all other patient groups. MUS was more sensitive than EMG in detecting fasciculations (58% vs. 48%). When combining the two methods, the sensitivity in detecting fasciculations increased to 65%. Fasciculations in nine muscles could predict the ALS diagnosis with high sensitivity and specificity. CONCLUSIONS: MUS is a sensitive tool in detecting fasciculations in patients with NMD and performs well compared to EMG in diagnosing ALS. SIGNIFICANCE: MUS may add valuable information in the clinic, especially in diagnosing ALS. PMID- 29028500 TI - Neural network topology in ADHD; evidence for maturational delay and default-mode network alterations. AB - OBJECTIVE: Attention-deficit/hyperactivity disorder (ADHD) has been associated with widespread brain abnormalities in white and grey matter, affecting not only local, but global functional networks as well. In this study, we explored these functional networks using source-reconstructed electroencephalography in ADHD and typically developing (TD) children. We expected evidence for maturational delay, with underlying abnormalities in the default mode network. METHODS: Electroencephalograms were recorded in ADHD (n=42) and TD (n=43) during rest, and functional connectivity (phase lag index) and graph (minimum spanning tree) parameters were derived. Dependent variables were global and local network metrics in theta, alpha and beta bands. RESULTS: We found evidence for a more centralized functional network in ADHD compared to TD children, with decreased diameter in the alpha band (etap2=0.06) and increased leaf fraction (etap2=0.11 and 0.08) in the alpha and beta bands, with underlying abnormalities in hub regions of the brain, including default mode network. CONCLUSIONS: The finding of a more centralized network is in line with maturational delay models of ADHD and should be replicated in longitudinal designs. SIGNIFICANCE: This study contributes to the literature by combining high temporal and spatial resolution to construct EEG network topology, and associates maturational-delay and default mode interference hypotheses of ADHD. PMID- 29028502 TI - DOTA-tetrazine probes with modified linkers for tumor pretargeting. AB - INTRODUCTION: Pretargeted radioimmunoimaging and -therapy approaches building on the bioorthogonal inverse-electron-demand Diels-Alder (IEDDA) reaction between strained trans-cyclooctenes (TCO) and electron-deficient tetrazines (Tz) have yielded impressive results in recent years and have proven a vital alternative to biological pretargeting systems. After improvement of the TCO-antibody conjugates, we here report on our evaluation of a new series of radiolabeled Tz probes. METHODS: Four new Tz-probes were synthesized, radiolabeled with lutetium 177, and characterized in vitro in terms of lipophilicity, reactivity, and stability in PBS and mouse serum. The in vivo biodistribution profile and tumor targeting potential of the probes were evaluated in LS174T tumor-bearing mice pretargeted with TCO-antibody conjugates using non-pretargeted mice as control. RESULTS: Radiolabeling of all probes proceeded in high yields providing the 177Lu labeled tetrazines in >95% radiochemical purity without any further purification. In mouse serum, half-lives of the probes varied between 8 and 13 h, with the exception of the most lipophilic probe, [177Lu]1b, with a serum half-life of less than 1 h. This probe also showed the fastest blood clearance (t1/2 = 5.4 min), more than 2-fold faster than PEG-linked probes [177Lu]3 and [177Lu]4, and even 3 fold faster than the other small probes without the PEG-linker, [177Lu]1a and [177Lu]2. In the pretargeting experiments, tumor uptake of the lead probe [177Lu]4 (~6 %ID/g) was most closely approached by [177Lu]2, followed by [177Lu]3 and [177Lu]1a. While all the smaller and more lipophilic probes suffered from increased liver uptake, the PEG-linked probe [177Lu]3 with its additional negative charge surprisingly showed the highest kidney uptake among all of the probes. CONCLUSION: The in vitro performance of some of the new tetrazine probes turned out to be comparable to the established lead probe [177Lu]Lu-DOTA-PEG11-Tz ([177Lu]4). However, tumor pretargeting studies in vivo showed lower tumor uptake and increased uptake in non-target organs. PMID- 29028503 TI - Unveiling the stimulatory effects of tartrazine on human and bovine serum albumin fibrillogenesis: Spectroscopic and microscopic study. AB - Amyloid fibrils are playing key role in the pathogenesis of various neurodegenerative diseases. Generally anionic molecules are known to induce amyloid fibril in several proteins. In this work, we have studied the effect of anionic food additive dye i.e., tartrazine (TZ) on the amyloid fibril formation of human serum albumins (HSA) and bovine serum albumin (BSA) at pHs7.4 and 3.5. We have employed various biophysical methods like, turbidity measurements, Rayleigh Light Scattering (RLS), Dynamic Light Scattering (DLS), intrinsic fluorescence, Congo red assay, far-UV CD, transmission electron microscopy (TEM) and atomic force microscopy (AFM) to decipher the mechanism of TZ-induce amyloid fibril formation in both the serum albumins at pHs7.4 and 3.5. The obtained results suggest that both the albumins forms amyloid-like aggregates in the presence of 1.0 to 15.0mM of TZ at pH3.5, but no amyloid fibril were seen at pH7.4. The possible cause of TZ-induced amyloid fibril formation is electrostatic and hydrophobic interaction because sulfate group of TZ may have interacted electrostatically with positively charged amino acids of the albumins at pH3.5 and increased protein-protein and protein-TZ interactions leading to amyloid fibril formation. The TEM, RLS and DLS results are suggesting that BSA forms bigger size amyloids compared to HSA, may be due to high surface hydrophobicity of BSA. PMID- 29028504 TI - Research on differences between 2-(2'-pyridyl)benzimidazole and 2-(4' pyridyl)benzimidazole based on terahertz time-domain spectroscopy. AB - Due to the important pharmaceutical activities of benzimidazole derivatives, the differences between 2-(2'-pyridyl)benzimidazole and 2-(4'-pyridyl)benzimidazole were researched by terahertz time-domain spectroscopy and density functional theory systematically. Although the only difference between their molecular configurations is the different arrangement of nitrogen on pyridine ring, 2PBI and 4PBI have large differences in their experimental absorption spectra in the range of 0.2-2.5THz, such as the amount, amplitude and frequency position of absorption peaks. The validity of these results was confirmed by the theoretical results simulated using density functional theory. The possible reasons of these differences originate from the different dihedral angles between benzimidazole ring and pyridine ring and the different hydrogen-bonding interactions within crystal cell. PMID- 29028501 TI - Interindividual variability in response to continuous theta-burst stimulation in healthy adults. AB - OBJECTIVE: We used complete-linkage cluster analysis to identify healthy subpopulations with distinct responses to continuous theta-burst stimulation (cTBS). METHODS: 21 healthy adults (age+/-SD, 36.9+/-15.2years) underwent cTBS of left motor cortex. Natural log-transformed motor evoked potentials (LnMEPs) at 5 50min post-cTBS (T5-T50) were calculated. RESULTS: Two clusters were found; Group 1 (n=12) that showed significant MEP facilitation at T15, T20, and T50 (p's<0.006), and Group 2 (n=9) that showed significant suppression at T5-T15 (p's<0.022). LnMEPs at T10 and T40 were best predictors of, and together accounted for 80% of, cluster assignment. In an exploratory analysis, we examined the roles of brain-derived neurotrophic factor (BDNF) and apolipoprotein E (APOE) polymorphisms in the cTBS response. Val66Met participants showed greater facilitation at T10 than Val66Val participants (p=0.025). BDNF and cTBS intensity predicted 59% of interindividual variability in LnMEP at T10. APOE did not significantly affect LnMEPs at any time point (p's>0.32). CONCLUSIONS: Data driven cluster analysis can identify healthy subpopulations with distinct cTBS responses. T10 and T40 LnMEPs were best predictors of cluster assignment. T10 LnMEP was influenced by BDNF polymorphism and cTBS intensity. SIGNIFICANCE: Healthy adults can be sorted into subpopulations with distinct cTBS responses that are influenced by genetics. PMID- 29028505 TI - Characterization and cysteine sensing performance of nanocomposites based on up conversion excitation host and rhodamine-derived probes. AB - Optical sensing for cysteine (Cys) recognition is an interesting topic due to Cys biological participation. In this paper, two rhodamine-based chemosensors were designed for Cys optical sensing. For chemosensor photostability improvement, up conversion nanocrystals were synthesized and used as excitation host. These nanocrystals were modified with a phase transfer reagent alpha-cyclodextrin (alpha-CD) to improve their compatibility with chemosensors. An efficient energy transfer from these nanocrystals to chemosensors under 980nm radiation was observed and confirmed by spectral match analysis, energy transfer radius calculation and emission decay lifetime comparison. A direct bonding mechanism between Cys and chemosensors with bonding stoichiometry of 1:1 was established by Job's plot experiment. Given the presence of Cys, chemosensor emission was increased, showing emission turn on effect. These two chemosensors showed good selectivity, improved photostability and linear sensing response towards Cys. PMID- 29028507 TI - Hydrogen bond docking preference in furans: OH?pi vs. OH?O. AB - The docking sites of hydrogen bonds in complexes formed between 2,2,2 trifluoroethanol (TFE), furan (Fu), and 2-methyl furan (MF) have been investigated. Using density functional theory (DFT) calculations, gas phase and matrix isolation FTIR spectroscopies, the strengths of OH?O and OH?pi hydrogen bonds in the complexes were compared to find the docking preference. Calculations suggest that the hydrogen bond donor, TFE, is more likely to dock onto the oxygen atom of the aromatic furans ring, and consequently, the OH?O type hydrogen bond is relatively stronger than the OH?pi type. The FTIR spectrum in the OH stretching fundamental range obtained at room temperatures has been compared with that obtained at extremely low temperatures in the matrix. The fundamental and the red shifts of OH-stretching vibrations were observed in both FTIR spectra, confirming the formation of hydrogen bonded complexes. By assessing the ability of furan and MF to participate in the formation of OH?O hydrogen bond, the effect of ring methylation has been highlighted. From the calculated geometric and thermodynamic parameters as well as the frequency shift of the OH-stretching vibrations in complexes, TFE-MF is found to be more stable than TFE-Fu, which suggests that the strength of the OH?O hydrogen bond in TFE-MF originates from the high activity of the furan molecule caused by the methylation of the aromatic ring. The present study furthers the knowledge of docking preference in heteroaromatic molecules and is helpful to understand the nature of intermolecular interactions between hydrogen bond donors and acceptors, including both electron-deficient atoms and pi cloud. PMID- 29028506 TI - Sodium deoxycholate mediated enhanced solubilization and stability of hydrophobic drug Clozapine in pluronic micelles. AB - In this report, the solubilization behaviour of a hydrophobic drug Clozapine (CLZ) in micellar suspensions of pluronics having different hydrophilic lipophilic balance (HLB) ratios viz. P84, F127 and F108 in the absence and presence of bile salt sodium deoxycholate (SDC) has been studied. UV-Vis spectroscopy has been exploited to determine the solubilization capacity of the investigated micellar systems in terms of drug loading efficiency, average number of drug molecules solubilized per micelle (ns), partition coefficient (P) and standard free energy of solubilization (?G degrees ). The morphological and structural changes taking place in pluronics in different concentration regimes of SDC and with the addition of drug CLZ has been explored using dynamic light scattering (DLS) and small angle neutron scattering (SANS) measurements. The SANS results revealed that aggregation behaviour of pluronic-SDC mixed micelles gets improved in the presence of drug. The micropolarity measurements have been performed to shed light on the locus of solubilization of the drug in pure and mixed micellar systems. The compatibility between CLZ and drug carriers (pluronics and SDC) was confirmed using powder X-ray diffraction (PXRD) and Fourier transform infrared spectroscopy (FTIR) techniques. Among the investigated systems, P84-SDC mixed system was found to be highly efficient for CLZ loading. The long term stability data indicated that CLZ loaded P84-SDC mixed micellar formulation remained stable for 3months at room temperature. Further, it was revealed that the CLZ loaded P84-SDC mixed micelles are converted into CLZ loaded pure P84 micelles at 30-fold dilutions which remain stable up to 48-fold dilutions. The results from the present studies suggest that P84-SDC mixed micelles can serve as suitable delivery vehicles for hydrophobic drug CLZ. PMID- 29028508 TI - Jazz musicians reveal role of expectancy in human creativity. AB - Creativity has been defined as the ability to produce work that is novel, high in quality, and appropriate to an audience. While the nature of the creative process is under debate, many believe that creativity relies on real-time combinations of known neural and cognitive processes. One useful model of creativity comes from musical improvisation, such as in jazz, in which musicians spontaneously create novel sound sequences. Here we use jazz musicians to test the hypothesis that individuals with training in musical improvisation, which entails creative generation of musical ideas, might process expectancy differently. We compare jazz improvisers, non-improvising musicians, and non-musicians in the domain general task of divergent thinking, as well as the musical task of preference ratings for chord progressions that vary in expectation while EEGs were recorded. Behavioral results showed for the first time that jazz musicians preferred unexpected chord progressions. ERP results showed that unexpected stimuli elicited larger early and mid-latency ERP responses (ERAN and P3b), followed by smaller long-latency responses (Late Positivity Potential) in jazz musicians. The amplitudes of these ERP components were significantly correlated with behavioral measures of fluency and originality on the divergent thinking task. Together, results highlight the role of expectancy in creativity. PMID- 29028509 TI - Delayed-onset MRI findings in acute chorea related to anoxic brain injury. AB - Anoxic brain injury can manifest with various abnormal movements. We describe acute chorea in a young patient with anoxic brain injury due to chlordiazepoxide toxicity who had delayed radiographic lesions in bilateral globus pallidus. Although brain MRI 8days after the anoxic event was unremarkable, repeat brain MRI 15days after the event showed T2 hyperintensities and enhancement within the bilateral globus pallidi. It is possible that MRI brain findings of bilateral basal ganglia lesions may appear later than onset of chorea in anoxic brain injury. However, given the normal brain MRI in between, other etiologies cannot be excluded entirely. PMID- 29028510 TI - Comparison of virtual monochromatic series, iodine overlay maps, and single energy CT equivalent images in head and neck cancer conspicuity. AB - OBJECTIVE: To compare lesion conspicuity amongst DECT monochromatic series (40, 45, 50keV), and single-energy CT (SECT) equivalent images in head and neck squamous cell carcinomas (HNSCC). METHODS: Two readers compared DECT images to 70keV SECT equivalent series in 39 patients with HNSCC on lesion margin, enhancement, and overall conspicuity. RESULTS: The 45keV and 50keV images were significantly better (p-values <=0.001) than the SECT equivalent in lesion enhancement, margins, and overall conspicuity for both readers. Readers mostly preferred the 50keV monochromatic series. CONCLUSION: DECT can provide better lesion visualization than SECT in HNSCC. PMID- 29028511 TI - A pictorial review of diagnostic pitfalls of developmental anomalies and variants in pancreatic imaging. AB - Developmental anomalies and anatomic variants of the pancreas vary widely, and most of them are encountered incidentally during radiologic evaluation. However, some of these anomalies and variants are potentially pathologic and may cause various clinical presentations in childhood or adulthood. The early identification of these entities in various imaging modalities including ultrasound, computed tomography (CT), and magnetic resonance (MR) imaging would be valuable in making correct diagnoses and, in turn, preventing unnecessary additional procedures. In order to differentiate these entities, it is fundamental to understand the embryologic development and normal anatomical structure of the pancreas. In this article, we review the embryology and normal anatomy of the pancreas, and diagnostic pitfalls of developmental anomalies and anatomic variants in various pancreatic imaging modalities. PMID- 29028512 TI - The ectopic accessory parotid system: A new patient, studied through magnetic resonance imaging. AB - The ectopic accessory parotid system (EAPS) connotes an extra parotid tissue with its ductal outlet that is morphologically distinct from the main parotid gland and its drainage system. Clinically presenting as a saliva-draining cheek fistula near the oral commissure, this rare congenital anomaly is almost always associated with ipsilateral preauricular appendages and occasional mandibular hypoplasia, and is considered a variant of the oculo-auriculo-vertebral spectrum. This report discusses the embryology, clinical details, and management aspects in a new patient, highlighting the role of magnetic resonance imaging in, for the first time, tracking the ectopic salivary system, and establishing its independent existence. PMID- 29028513 TI - Occurrence and significance of morphologic changes in patients with metastatic triple negative breast cancer treated with Cabozantinib. AB - OBJECTIVE: To compare performance of RECIST1.1 and Choi criteria in assessment of patients with metastatic triple-negative breast cancer treated with cabozantinib. METHODS: Thirty patients with metastatic triple-negative breast cancer enrolled in phase 2 clinical trial received cabozantinib. Clinical benefit rates assessed by prospectively determined RECIST1.1 and retrospectively assessed Choi criteria were compared. RESULTS: Decreased tumor density (>=15%) at first follow-up was seen in 22/30(73%) patients. CBR was 40% (95%CI:23-59%) by RECIST1.1, and 73% (95%CI:54-88%) by Choi (NPV=100%, 95%CI:63-100%; PPV=55%, 95%CI:32-76%). CONCLUSIONS: Morphologic changes are seen in the majority of patients treated with cabozantinib, making Choi criteria valuable in response assessment. PMID- 29028514 TI - Solitary fibrous tumor in the abdomen and pelvis: A case series with radiological findings and treatment recommendations. AB - This study presents the radiological findings of seven cases of solitary fibrous tumor (SFT) in the abdomen and pelvis. A retrospective search of the pathology database at our institution was performed to identify cases of SFT in the abdomen and pelvis. After identifying seven cases, cross-sectional imaging was reviewed and characterized. We conclude that SFTs in the abdomen and pelvis should be considered with well-defined, circular, hypervascular masses. Pelvic SFTs should be considered with homogenous, avidly enhancing masses. Embolization of feeding arteries can allow safe surgical resection or biopsy, but embolization appears to not offer a definitive therapy. PMID- 29028515 TI - Post-biopsy MRI changes in the size and enhancement of intramuscular myxomas: A report of two cases. AB - Intramuscular myxomas are benign soft-tissue tumors, characterized by bland spindle-shaped cells and fibroblasts within an abundant mucoid matrix on histologic examination. Classically, these are slowly enlarging masses which may occasionally cause pain, paresthesia, and muscle weakness secondary to mass effect. We present an interesting phenomenon of two histologically confirmed cases of intramuscular myxomas that exhibited size and enhancement changes on follow-up imaging after image-guided biopsy. To our knowledge, this is the first report to describe size and enhancement changes of intramuscular myxomas after biopsy. PMID- 29028516 TI - Pravastatin to treat and prevent preeclampsia. Preclinical and clinical studies. AB - Pre-eclampsia is a disease of pregnancy affecting 5%-8% of all pregnancies and a leading cause of maternal and fetal mortality. Despite improvements in the diagnosis, there is no effective method for prevention and treatment. While studies in women are of critical importance, investigation of pathological mechanisms in pregnant women is necessarily limited, and the ability to establish cause and effect relationships, difficult. Mouse models have been instrumental in defining pathogenic mechanisms in preeclampsia and in the identification of pravastatin as a potential treatment to prevent pregnancy complications associated with placental dysfunction. Numerous epidemiological studies provided robust evidence demonstrating that pravastatin exposure during pregnancy does not affect fetal development. In addition, pravastatin is hydrophilic and has a limited passage through the placenta, diminishing any safety concerns. Several pilot studies suggest that pravastatin may be a good option to prevent and treat preeclampsia in women. While these studies are promising, the effectiveness of pravastatin to treat preeclampsia needs to be confirmed by randomized clinical trials. PMID- 29028517 TI - Effect of carbamazepine and oxcarbazepine on serum neuron-specific enolase in focal seizures: A randomized controlled trial. AB - Neuron-specific enolase (NSE) is the most investigated biomarker in the context of epilepsy and brain damage. The present study was conducted to investigate the change in serum NSE in patients with focal seizure and the effect of carbamazepine and oxcarbazepine on serum NSE. The present study is a randomized, open-label, parallel design clinical trial (ClinicalTrials.gov Identifier: NCT02705768) conducted on 60 patients of focal seizure. After recruitment, detailed history, clinical evaluations including Chalfont-National Hospital seizure severity scale (NHS3), Quality of Life in Epilepsy Inventory (QOLIE-31) and serum NSE estimation were done at baseline. Thirty healthy volunteers were recruited for a baseline evaluation of serum NSE. After randomization, one group received tablet oxcarbazepine and another group received tablet carbamazepine. At 4 weeks follow-up, all the parameter were reassessed. Serum NSE level was found to be significantly increased in patients with focal seizure in comparison to healthy volunteers. In both drug groups, serum NSE decreased significantly but the reduction in carbamazepine group (1.43; 95%CI: 0.18-2.67; p=0.025) was significantly higher than oxcarbazepine group.NHS3 score, score in all seven domains of QOLIE-31 and final QOLIE-31 score improved significantly in both the groups. In conclusion, serum NSE increases in the patients with focal seizure within 48h of a seizure episode. Therapy with carbamazepine and oxcarbazepine can decrease serum NSE level but the reduction is significantly higher with carbamazepine. Therapy with both the drugs can decrease the severity of epilepsy and improve the quality of life but adverse events were more with carbamazepine. PMID- 29028518 TI - Absence of distracting information explains the redundant signals effect for a centrally presented categorization task. AB - The redundant signals effect, a speed-up in response times with multiple targets compared to a single target in one display, is well-documented, with some evidence suggesting that it can occur even in conceptual processing when targets are presented bilaterally. The current study was designed to determine whether or not category-based redundant signals can speed up processing even without bilateral presentation. Toward that end, participants performed a go/no-go visual task in which they responded only to members of the target category (i.e., they responded only to numbers and did not respond to letters). Numbers and letters were presented along an imaginary vertical line in the center of the visual field. When the single signal trials contained a nontarget letter (Experiment 1), there was a significant redundant signals effect. The effect was not significant when the single-signal trials did not contain a nontarget letter (Experiments 2 and 3). The results indicate that, when targets are defined categorically and not presented bilaterally, the redundant signals effect may be an effect of reducing the presence of information that draws attention away from the target. This suggests that redundant signals may not speed up conceptual processing when interhemispheric presentation is not available. PMID- 29028519 TI - TEM observation on phase separation and interfaces of laser surface alloyed high entropy alloy coating. AB - Phase separation is a common phenomenon in traditional alloys. Under the condition of appropriate undercooling, the segregation phenomenon can be also found in blue-chip high-entropy alloys (HEAs). In this work, the phase separation behavior and interfacial investigation of laser surface alloyed HEA coating with high content Ti were studied principally by transmission electron microscopy. The results show that crystal structure and elementary composition on both sides of the interface of coating/substrate are quite different, and the interfaces between different phases are incoherent or semi-coherent boundarys, resolved by high resolution transmission electron microscopy. In the interface of (Co, Ni)Ti2 phase/beta-Ti phase, there is angle of 80 degrees between BCC<100> and FCC<201>. An interesting 'island' structure, that beta-Ti phases are embraced by (Co, Ni)Ti2 compounds in the BCC matrix, was observed definitely, which is attributed to the combined action of Ti segregation and inter-attraction of Ti and other elements. PMID- 29028521 TI - Age at menarche and depressive symptoms in older Southern Chinese women: A Mendelian randomization study in the Guangzhou Biobank Cohort Study. AB - To clarify the causal role of age at menarche in depressive symptoms we conducted a Mendelian randomization study using a large Southern Chinese cohort (n = 12,233). A genetic allele score was derived using stepwise regression with cross validation. Older age at menarche was not associated with geriatric depression scale score. Our findings suggest that higher rates of depression in women are likely attributable to other factors which require investigation. PMID- 29028520 TI - Socioeconomic status and childhood autism: A population-based study in China. AB - There is limited evidence on the association between socioeconomic status (SES) and autism in developing nations. The aim of this study was to examine this association among children aged 0-17 years in China. We obtained data from the Second National Sample Survey on Disability, and selected 616,940 children for analysis. Autism was ascertained according to the International Statistical Classification of Diseases, Tenth Revision. Multiple logistic regressions allowing for weights showed that children in middle-income and high-income families were less likely than their low-income peers to have autism, with an odds ratio of 0.60 (95%CI: 0.39, 0.93) and 0.44 (95%CI: 0.27, 0.72), respectively. Children in middle-education families had 63% (95%CI: 41%, 95%) odds of autism relative to their counterparts in low-education families. Stratified analyses found that all observed associations were only in male children, not in female children. In conclusion, children in families with socioeconomic disadvantage, in the form of lower family income and education, had greater risk of childhood autism. PMID- 29028522 TI - An examination of sex differences in neurocognition and social cognition in first episode psychosis. AB - Due to the dearth and conflicting findings of previous research, it is unclear whether males and females with first-episode psychosis (FEP) differ in their neurocognitive and social cognitive abilities. The aims of the current study were to investigate whether: (i) there are sex differences in neurocognition and social cognition among young people with FEP; and (ii) they resemble those observed in age-matched healthy controls. The current study involved secondary analysis of data from a previous study in which a large neurocognitive and social cognitive battery was administered to 146 individuals with FEP and 46 healthy controls aged 15-25 years. Seven two-way between-groups multivariate analysis of variances revealed that FEP participants were impaired relative to controls on all cognitive domains. Only one main effect of sex was found with males, regardless of group, outperforming females on verbal comprehension. A significant interaction effect was found for information processing speed with FEP females outperforming FEP males on the Symbol Digit Modalities Test; however, post-hoc analysis of the mean difference was not significant. Despite few sex differences, the current study highlights that cognitive impairment is a key feature of FEP that should be a treatment target in early intervention. PMID- 29028523 TI - The interplay between trait anxiety, cognitive biases and attentional control in healthy individuals with psychotic-like experiences. AB - Although both anxiety and cognitive biases contribute to psychosis, it is still unclear whether these factors interact in their influence on psychotic symptoms. The aim of the study was to examine the interactions between trait anxiety, cognitive biases and delusion-like experiences (PLEs) in a non-clinical sample; the moderational role of attentional control on this relationship was also considered in the study. Two subgroups of participants, 92 individuals (M=24.76; SD=6.33) with heightened (HA) trait anxiety and 78 individuals (M=23.09; SD=5.66) with lowered (LA) trait anxiety took part in the study. Anxiety, cognitive biases and attentional control were measured using self-report questionnaires. Regression analyses and moderation analyses were performed. External attribution bias predicted psychotic-like experiences in both groups, whereas attention to threat bias and belief inflexibility predicted PLEs within LA group. Further moderation analyses revealed that in LA group attention to threat bias increases PLEs only among individuals with a high and moderate ability to focus attention. The results indicated that trait anxiety is an important factor influencing the relationship between cognitive biases and PLEs, and that the ability to voluntarily focus attention is a significant moderator of the linkage between attention to threat bias and delusion-like experiences among low-anxious healthy individuals. PMID- 29028524 TI - Sleep health assessment: A scale validation. AB - Sleep health is a new and important concept. Considering the need to expand the research on sleep from the health perspective, this research proposes to validate a Sleep Health Scale (SHS) for use with the Portuguese adult population. A sample of 540 community-dwelling adults aged 18-90 years old was included. The SHS scores ranged from 0 to 30 with a mean of 19.09 (SD +/- 6.49). The distribution indicated that all socio demographic variables (age, gender, and literacy) influenced sleep health. Exploratory factor analysis (EFA) demonstrated one factor for this measurement model with poor indices (Chi-square (df) = 55.02(9), p < 0.001). Confirmatory factor analysis (CFA) was performed on the single factor and showed a well-adjusted model except for question 5 (Chi-square (df) = 11.443(4), p = 0.022; RMSEA = 0.084; CFI=0.99; GFI = 0.98; AGFI = 0.94), the convergent validity (AVE = 0.55) and reliability values (alpha = 0.85 /CR = 0.86) were good. In conclusion, the Sleep Health Scale (SHS) is valid and reliable for the assessment of the several sleep health indicators of Portuguese adults. An investigation on the relationship between sleep health and well-being in promoting quality of life with this scale is recommended for future research. PMID- 29028525 TI - Risk taking and adult attention deficit/hyperactivity disorder: A gap between real life behavior and experimental decision making. AB - Adults with attention deficit/hyperactivity disorder (ADHD) are prone to suboptimal decision making and risk taking. The aim of this study was to test performance on a theoretically-based probabilistic decision making task in well characterized adults with and without ADHD, and examine the relation between experimental risk taking and history of real-life risk-taking behavior, defined as cigarette, alcohol, and street drug use. University students with and without ADHD completed a modified version of the Cambridge Gambling Test, in which they had to choose between alternatives varied by level of risk, and reported their history of substance use. Both groups showed similar patterns of risk taking on the experimental decision making task, suggesting that ADHD is not linked to low sensitivity to risk. Past and present substance use was more prevalent in adults with ADHD. These finding question the validity of experimental probabilistic decision making task as a valid model for ADHD-related risk-taking behavior. PMID- 29028526 TI - Semantic coherence in psychometric schizotypy: An investigation using Latent Semantic Analysis. AB - Technological advancements have led to the development of automated methods for assessing semantic coherence in psychiatric populations. Latent Semantic Analysis (LSA) is an automated method that has been used to quantify semantic coherence in schizophrenia-spectrum disorders. The current study examined whether: 1) Semantic coherence reductions extended to psychometrically-defined schizotypy and 2) Greater cognitive load further reduces semantic coherence. LSA was applied to responses generated during category fluency tasks in baseline and cognitive load conditions. Significant differences between schizotypy and non-schizotypy groups were not observed. Findings suggest that semantic coherence may be relatively preserved at this point on the schizophrenia-spectrum. PMID- 29028527 TI - Identification and optimization of novel 6-acylamino-2-aminoquinolines as potent Hsp90 C-terminal inhibitors. AB - In order to discover novel Hsp90 inhibitors targeting the C-terminal ATP binding pocket, a novobiocin derivative based ROCS model was constructed for virtual screening. Compound 13 was identified as the lead compound and then systematical structure activity relationship (SAR) study was conducted. These efforts led to compound 69, which exhibited potent anti-proliferative activities against MCF7 and SKBr3 breast cancer cell lines. In 4T1 mice breast cancer models, 69 exhibited potent tumor growth inhibition and anti-metastasis effect. Compound 69 as a potent antitumor agent targeting the Hsp90 C-terminal is worthy of further pre-clinical study. PMID- 29028528 TI - Inhibitors of Yellow Fever Virus replication based on 1,3,5-triphenyl-4,5 dihydropyrazole scaffold: Design, synthesis and antiviral evaluation. AB - By the antiviral screening of an in house library of pyrazoline compounds, 4-(3 (4-phenoxyphenyl)-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide (5a) was identified as a promising hit compound for the development of anti- Yellow Fever Virus (YFV) agents. Structural optimization studies were focused on the development of 5a analogues which retain the potency as YFV inhibitors and show a reduced cytotoxicity. The synthesized 1-3,5-triphenyl-pyrazolines (4a-j, 5a-j, 6a j) were evaluated in cell based assays for cytotoxicity and antiviral activity against representative viruses of two of the three genera of the Flaviviridae family, i.e.: Pestivirus (BVDV) and Flavivirus (YFV). These compounds were also tested against a large panel of different pathogenic RNA and DNA viruses. Most of the new 1-3,5-triphenyl-pyrazolines (4a-j, 5a-j, 6a-j) exhibited a specific activity against YFV, showing EC50 values in the low micromolar range with almost a 10-fold improvement in potency compared to the reference inhibitor 6 azauridine. However, the selectivity indexes of the unsubstituted (4a-j) and the phenoxy (5a-j) analogues were generally modest due to the pronounced cytotoxicity against BHK-21 cells. Otherwise, the benzyloxy derivatives (6a-j) generally coupled high potency and selectivity. On the basis of both anti-YFV activity and selectivity index, pyrazolines 6a and 6b were chosen for time of addition experiments. The selected pyrazolines and the reference inhibitor 6-azauridine displayed maximal inhibition when added in the pretreatment or during the infection. PMID- 29028529 TI - Design, synthesis and immunological evaluation of novel amphiphilic desmuramyl peptides. AB - Muramyl dipeptide (MDP) - an essential bacterial cell wall component - is recognized by our immune system as pathogen-associated molecular pattern (PAMP) which results in immune responses with adverse toxic effects. In order to harness the beneficial properties from the pro-inflammatory characteristics of the bacterial cell wall motif, MDP was strategically re-designed while conserving the L-D configurations of the dipeptide moiety. The muramic acid was replaced with a hydrophilic arene and lipophilic chain was introduced at peptide end to give the amphiphilic desmuramyl peptides (DMPs). The novel DMPs were found to modulate the immune response by amplifying the LPS-induced surface glycoprotein (ICAM-1) expression in THP-1 cells without showing significant toxicity. Furthermore, these compounds were able to trigger the secretion of higher levels of pro inflammatory cytokine (TNF-alpha) than the well-studied NOD2 agonist, Murabutide. PMID- 29028530 TI - A pentanoic acid derivative targeting matrix metalloproteinase-2 (MMP-2) induces apoptosis in a chronic myeloid leukemia cell line. AB - Depending on our previous observations, some compounds of pentanoic acid were designed and synthesized. Characterization of the synthesized compounds was done by mass, NMR and IR spectroscopy as well as elemental analysis. Among the synthesized molecules, (2S)-5-oxo-2-[(nitrobenzene-4-yl sulfonyl) amino]-5 (pentylamino) pentanoic acid (Cpd 11) was found as a lead and potent inhibitor of matrix metalloproteinase-2 (MMP-2). Molecular modeling and enzyme inhibition studies were done to confirm the interaction or inhibitory potential of this compound. Thereafter, the biological screening was done through cytotoxicity, anti-invasion and apoptosis-related assays. Docking analysis revealed that Cpd 11 interacted with the target molecule MMP-2 and with MMP-9. However, enzyme inhibition assay showed 3-fold MMP-2 inhibition compared to MMP-9. Cytotoxicity assay showed the inhibitory potential of Cpd 11 against K562 cell line having IC50 value of 17.9 +/- 0.01 MUM after 48 h of incubation. The cell death was apoptotic in nature as revealed from the annexin V and sub-G1 cell cycle arrest assay. Besides this, Cpd 11 also exhibited dose dependent anti-invasive activity into K562 cell line. On the other hand, flow cytometry and western blot data revealed Cpd 11 induced downregulation of MMP-2 in K562 cell line after 48 h of incubation that might be linked with the anti-invasive and apoptotic activity furthermore. Therefore, the overall results validated each method and make this molecule as a potent MMP-2 inhibitor that blocked the invasion and could bring apoptosis at later stages in K562 cells sparing the normal ones. PMID- 29028531 TI - Synthesis and biological evaluation of novel non-racemic indole-containing allocolchicinoids. AB - Two novel indole-containing allocolchicinoids were prepared from naturally occurring colchicine exploiting the Curtius rearrangement and tandem Sonogashira coupling/Pd-catalyzed cyclization as the key transformations. Their cytotoxic properties, apoptosis-inducing activity, tubulin assembly inhibition and short time cytotoxic effects were investigated. Compound 7 demonstrated the most pronounced anti-cancer activity: IC50 < 1 nM, cell cycle arrest in the G2/M phase, 25% apoptosis induction, as well as lower destructive short-time effects on HT-29 cell line in comparison with colchicine. Docking studies for prepared indole-derived allocolchicine analogues were carried out. PMID- 29028532 TI - New dimeric cGMP analogues reduce proliferation in three colon cancer cell lines. AB - Activation of the cGMP-dependent protein kinase G (PKG) can inhibit growth and/or induce apoptosis in colon cancer. In this study we evaluated the effects on cell viability, cell death and proliferation of novel dimeric cGMP analogues, compared to a monomeric compound. Three colon cancer cell lines, which only express isoform 2 of PKG, were treated with these novel cGMP analogues and responded with increased PKG activity. cGMP analogues reduced cell viability in the three cell lines and this was due to a cytostatic rather than cytotoxic effect. These findings suggest that activation of PKG2 can be a therapeutic target in the treatment of colon cancer and, most importantly, that dimeric cGMP analogues can further improve the beneficial effects previously observed with monomeric cGMP analogues. PMID- 29028533 TI - Triclosan-caffeic acid hybrids: Synthesis, leishmanicidal, trypanocidal and cytotoxic activities. AB - The synthesis, cytotoxicity, anti-leishmanial and anti-trypanosomal activities of twelve triclosan-caffeic acid hybrids are described herein. The structure of the synthesized products was elucidated by a combination of spectrometric analyses. The synthesized compounds were evaluated against amastigotes forms of L. (V) panamensis, which is the most prevalent Leishmania species in Colombia, and against Trypanosoma cruzi, which is the pathogenic species to humans. Cytotoxicity was evaluated against human U-937 macrophages. Eight compounds were active against L. (V) panamensis (18-23, 26 and 30) and eight of them against T. cruzi (19-22, 24 and 28-30) with EC50 values lower than 40 MUM. Compounds 19-22, 24 and 28-30 showed higher activities than benznidazole (BNZ). Esters 19 and 21 were the most active compounds for both L. (V) panamensis and T. cruzi with 3.82 and 11.65 MUM and 8.25 and 8.69 MUM, respectively. Compounds 19-22, 24 and 28-30 showed higher activities than benznidazole (BNZ). Most of the compounds showed antiprotozoal activity and with exception of 18, 26 and 28, the remaining compounds were toxic for mammalian cells, yet they have potential to be considered as candidates for anti-trypanosomal and anti-leishmanial drug development. The activity is dependent on the length of the alkyl linker with compound 19, bearing a four-carbon alkyl chain, the most performing hybrid. In general, hydroxyl groups increase both activity and cytotoxicity and the presence of the double bond in the side chain is not decisive for cytotoxicity and anti protozoal activity. PMID- 29028534 TI - Discovery of Benzo[g]quinazolin benzenesulfonamide derivatives as dual EGFR/HER2 inhibitors. AB - An array of some new N-(substituted)-2-((4-oxo-3-(4-sulfamoylphenyl)-3,4 dihydrobenzo[g]quinazolin-2-yl)thio)acetamide 5-19 were synthesized from the starting compound 4-(2-mercapto-4-oxobenzo[g]quinazolin-3(4H) yl)benzenesulfonamide 4, to be assessed for their cytotoxic activity against A549 lung cancer cell line and to determine their inhibitory effect on EGFR tyrosine kinase enzyme. Compounds 5-19 showed high activity towards A549 cell line with IC50 values of 0.12-8.70 MUM. Compounds 6, 12 and 18 were the most potent in this series. These compounds were further screened as dual inhibitors for EGFR/HER2 enzymes in comparison with erlotinib and were found to possess very potent activity. Compound 12 showed the highest activity with IC50 values of 0.06 MUM and 0.30 MUM towards EGFR and HER2, respectively. Accordingly, the apoptotic effect of the most potent compounds 6, 12 and 18 was investigated and showed a marked increase in the level of caspases-3 by 6, 9 and 8 folds, respectively, compared to the control cells. Moreover, Molecular modeling was performed inside the active site of EGFR, keeping in mind their binding possibilities, bond lengths, angles and energy scores. It was found that the most active compounds demonstrated the best binding scores in the active site of EGFR, which may clarify their high inhibition profile. PMID- 29028535 TI - Baicalin and its metabolites suppresses gluconeogenesis through activation of AMPK or AKT in insulin resistant HepG-2 cells. AB - Scutellaria baicalensis Georgi (S. baicalensis), as a traditional Chinese herbal medicine, is an important component of several famous Chinese medicinal formulas for treating patients with diabetes mellitus. Baicalin (BG), a main bioactive component of S. baicalensis, has been reported to have antidiabetic effects. However, pharmacokinetic studies have indicated that BG has poor oral bioavailability. Therefore, it is hard to explain the pharmacological effects of BG in vivo. Interestingly, several reports show that BG is extensively metabolized in rats and humans. Therefore, we speculate that the BG metabolites might be responsible for the pharmacological effects. In this study, BG and its three metabolites (M1-M3) were examined their effects on glucose consumption in insulin resistant HepG-2 cells with a commercial glucose assay kit. Real-time PCR and western blot assay were used to confirm genes and proteins of interest, respectively. The results demonstrate that BG and its metabolites (except for M3) enhanced the glucose consumption which might be associated with inhibiting the expression of the key gluconeogenic genes, including glucose-6-phosphatase (G6Pase), phosphoenolypyruvate carboxykinase (PEPCK) and glucose transporter 2 (GLUT2). Further study found that BG and M1 could suppress hepatic gluconeogenesis via activation of the AMPK pathway, while M2 could suppress hepatic gluconeogenesis via activation of the PI3K/AKT signaling pathway. Taken together, our findings suggest that both BG and its metabolites have antihyperglycemic activities, and might be the active forms of oral doses of BG in vivo. PMID- 29028536 TI - Attitudes mediate the intergenerational transmission of corporal punishment in China. AB - This research aimed to examine the intergenerational transmission of corporal punishment and the role of parents' attitudes toward corporal punishment in the transmission processes in Chinese societies. Based on social-cognitive theory, it was hypothesized that parents' attitudes toward corporal punishment would mediate the transmission of corporal punishment. Seven hundred and eighty-five fathers and eight hundred and eleven mothers with elementary school-age children (data collected in winter 2009) were recruited through convenience sampling techniques. The Chinese version of Parent-Child Conflict Tactics Scale (CTSPC) and Attitude toward Physical Punishment Scale (ATPP) were used as the main assessment tools to measure parents' corporal punishment experiences in childhood, current use of corporal punishment and attitudes toward corporal punishment. Findings revealed that the strength of intergenerational transmission of corporal punishment was strong and parents' attitudes toward corporal punishment played a mediating role in the continuity of corporal punishment for both fathers and mothers in China. The findings highlighted the role of attitudes in the intergenerational transmission of corporal punishment within the Chinese cultural context and also suggested the need for intervention programs to focus on modification of maladaptive attitudes toward what is appropriate and effective discipline. PMID- 29028537 TI - Facile surface-engineered polymeric absorbents for simultaneous adsorption and degradation of organic wastes. AB - Polymeric absorbents were surface-engineered with photocatalysts for simultaneous adsorption and degradation of organic wastes in water using a facile Pickering emulsion polymerization method. This facile strategy not only overcome the low light energy utilization of traditional photocatalysts-polymer nanocomposites due to the core-shell structure, but also could convenient control the microstructure of the photocatalysts owing to the separated preparation procedure when compared to the direct growth method. Firstly, binary bismuth oxyhalide composed as BiOI0.5Cl0.5 was chosen to engineered polymeric absorbents due to its higher photodegradation efficiency especially. After the emulsification and polymerization process, BiOI0.5Cl0.5 acting as the stabilizer would be fixed on the surface of the functional polymeric absorbents to form PA@BiOI0.5Cl0.5. Batch experiments were lunched using phenol as the test substance, the results shown that PA@BiOI0.5Cl0.5 could remove phenol completely within a short time and could be reused without any treatments with a simultaneous adsorption and degradation process. Furthermore, polymeric absorbents were engineered with commercial TiO2 to prove the generality of this strategy. PMID- 29028538 TI - Nitric oxide induces rice tolerance to excessive nickel by regulating nickel uptake, reactive oxygen species detoxification and defense-related gene expression. AB - Soil contamination with nickel (Ni) is a persistent threat to crop production worldwide. The present study examined the putative roles of nitric oxide (NO) in improving Ni-tolerance in rice. Our findings showed that application of exogenous sodium nitroprusside (SNP), a NO donor, significantly improved the growth performance of rice seedlings when grown under excessive Ni. The enhanced Ni tolerance of rice prompted by SNP could be ascribed to its ability to regulate Ni uptake, decrease Ni-induced oxidative stress as evidenced by reduced levels of hydrogen peroxide, malondialdehyde, and electrolyte leakage in Ni-stressed plants. The positive roles of NO against Ni-toxicity also reflected through its protective effects on photosynthetic pigments, soluble proteins and proline. SNP also boosted antioxidant capacity in Ni-stressed plants by maintaining increased levels of ascorbate, enhanced activities of ROS-detoxifying enzymes, particularly peroxidase (POD) and catalase (CAT) in both roots and shoots compared with Ni stressed alone plants. Moreover, SNP treatment also upregulated the transcript levels of CAT, POD, ascorbate peroxidase, glutathione reductase and superoxide dismutase genes in shoots under Ni-stress. Using different sulfide compounds and NO scavenger cPTIO, we also provided evidence that NO, rather than other byproducts of SNP, contributed to the improved performance of rice seedlings under Ni-stress. Collectively, our results conclude that exogenous SNP-mediated modulation of endogenous NO enhanced rice tolerance to Ni-stress by restricting Ni accumulation, maintaining photosynthetic performance and reducing oxidative damage through improved antioxidant system, thereby suggesting NO as an effective stress regulator in mitigating Ni-toxicity in economically important rice, and perhaps in other crop plants. PMID- 29028539 TI - Electrospun polycaprolactam-manganese oxide fiber for headspace-solid phase microextraction of phthalate esters in water samples. AB - The nanofibrous polycaprolactam (polyamide 6 (PA6)) incorporated with manganese oxide (MnO) nanoparticles was fabricated by electrospinning and used as a new fiber coating for headspace-solid phase microextraction (HS-SPME) of the selected phthalate esters (PEs) in water samples prior to GC-MUECD. The adsorbent was fully characterized using scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy and thermogravimetric analysis (TGA). The main parameters that affect the HS-SPME efficiency such as extraction temperature, ionic strength, extraction and desorption times were investigated. The analytical figures of merit were obtained under the optimized conditions as follows: linear dynamic range (LDR), 0.500-5.00 * 102 ng mL-1; relative standard deviations (RSDs, n = 3), 1.86-10.9%; limits of detection (LODs), 0.0400-0.193 ng mL-1. The method was applied for determination of the target analytes in river water, bottled water, mineral water and soda samples and the relative recoveries were obtained between 90.3 and 107%. PMID- 29028540 TI - Endo-lysosomal dysfunction: a converging mechanism in neurodegenerative diseases. AB - Endo-lysosomal pathways are essential in maintaining protein homeostasis in the cell. Numerous genes in the endo-lysosomal pathways have been found to associate with neurodegenerative diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), and frontotemporal dementia (FTD). Mutations of these genes lead to dysfunction in multiple steps of the endo-lysosomal network: autophagy, endocytic trafficking and lysosomal degradation, resulting in accumulation of pathogenic proteins. Although the exact pathogenic mechanism varies for different disease associated genes, dysfunction of the endo-lysosomal pathways represents a converging mechanism shared by these diseases. Therefore, strategies that correct or compensate for endo-lysosomal dysfunction may be promising therapeutic approaches to treat neurodegenerative diseases. PMID- 29028542 TI - Spectral diffusion and dynamic nuclear polarization: Beyond the high temperature approximation. AB - Dynamic Nuclear Polarization (DNP) has proven itself most powerful for the orientation of nuclear spins in polarized targets and for hyperpolarization in magnetic resonance imaging (MRI). Unfortunately, the theoretical description of some of the processes involved in DNP invokes the high temperature approximation, in which Boltzmann factors are expanded up to first order, while the high electron and nuclear spin polarization required for many applications do not justify such an approximation. A previous article extended the description of one of the mechanisms of DNP-thermal mixing-beyond the high temperature approximation (Wenckebach, 2017). But that extension is still limited: it assumes that fast spectral diffusion creates a local equilibrium in the electron spin system. Provotorov's theory of cross-relaxation enables a consistent further extension to slower spectral diffusion, but also invokes the high temperature approximation. The present article extends the theory of cross-relaxation to low temperature and applies it to spectral diffusion in glasses doped with paramagnetic centres with anisotropic g-tensors. The formalism is used to describe DNP via the mechanism of the cross effect. In the limit of fast spectral diffusion the results converge to those obtained in Wenckebach (2017) for thermal mixing. In the limit of slow spectral diffusion a hole is burnt in the electron spin resonance (ESR) signal, just as predicted by more simple models. The theory is applied to DNP of proton and 13C spins in samples doped with the radical TEMPO. PMID- 29028541 TI - Tuning the structure of aminoferrocene-based anticancer prodrugs to prevent their aggregation in aqueous solution. AB - Aminoferrocene-based prodrugs are activated in cancer cells by reactive oxygen species (ROS). They were shown to exhibit high cytotoxicity towards a variety of cancer cell lines and primary cancer cells, but remain not toxic towards non malignant cells. However, these prodrugs have rather high lipophilicity leading to relatively low water solubility. In particular, an n-octanol/water partition coefficient for the best aminoferrocene-based prodrug (2) was found to be 4.51+/ 0.03. Though the approaches for decreasing lipophilicity are straightforward and include the addition of polar residues to the drug structure, these modifications also lead to dramatic decrease of cell permeability and, correspondingly, lower the activity of the drug. Therefore, a delicate balance of polar and unpolar groups should be found to reduce lipophilicity without compromising the useful drug properties. In this study we optimized an N-alkyl substituent, which is a key element responsible for the stabilization of the aminoferrocene drug released in cancer cells from prodrug 2. We found that an N-propargyl residue is an optimal replacement for the N-benzyl fragment. In particular, such a substitution (prodrug 7a) leads to reduction of prodrug lipophilicity down to logP=3.78+/ 0.05, improvement of its water solubility, decrease of its propensity towards aggregation and dramatic increase of its ROS-generating properties. Finally, we demonstrated that the optimized prodrug strongly suppresses growth of Guerin's carcinoma (T8) in vivo at the dose of 30mg/kg. PMID- 29028544 TI - Predicting the effect of relaxation during frequency-selective adiabatic pulses. AB - Adiabatic half and full passages are invaluable for achieving uniform, B1 insensitive excitation or inversion of macroscopic magnetization across a well defined range of NMR frequencies. To accomplish narrow frequency ranges with adiabatic pulses (<100Hz), long pulse durations at low RF power levels are necessary, and relaxation during these pulses may no longer be negligible. A numerical, discrete recursive combination of the Bloch equations for longitudinal and transverse relaxation with the optimized equation for adiabatic angular motion of magnetization is used to calculate the trajectory of magnetization including its relaxation during adiabatic hyperbolic secant pulses. The agreement of computer-calculated data with experimental results demonstrates that, in non viscous, small-molecule fluids, it is possible to model magnetization and relaxation by considering standard T1 and T2 relaxation in the traditional rotating frame. The proposed model is aimed at performance optimizations of applications in which these pulses are employed. It differs from previous reports which focused on short high-power adiabatic pulses and relaxation that is governed by dipole-dipole interactions, cross polarization, or chemical exchange. PMID- 29028543 TI - A pulse programmable parahydrogen polarizer using a tunable electromagnet and dual channel NMR spectrometer. AB - Applications of parahydrogen induced polarization (PHIP) often warrant conversion of the chemically-synthesized singlet-state spin order into net heteronuclear magnetization. In order to obtain optimal yields from the overall hyperpolarization process, catalytic hydrogenation must be tightly synchronized to subsequent radiofrequency (RF) transformations of spin order. Commercial NMR consoles are designed to synchronize applied waves on multiple channels and consequently are well-suited as controllers for these types of hyperpolarization experiments that require tight coordination of RF and non-RF events. Described here is a PHIP instrument interfaced to a portable NMR console operating with a static field electromagnet in the milliTesla regime. In addition to providing comprehensive control over chemistry and RF events, this setup condenses the PHIP protocol into a pulse-program that in turn can be readily shared in the manner of traditional pulse sequences. In this device, a TTL multiplexer was constructed to convert spectrometer TTL outputs into 24 VDC signals. These signals then activated solenoid valves to control chemical shuttling and reactivity in PHIP experiments. Consolidating these steps in a pulse-programming environment speeded calibration and improved quality assurance by enabling the B0/B1 fields to be tuned based on the direct acquisition of thermally polarized and hyperpolarized NMR signals. Performance was tested on the parahydrogen addition product of 2 hydroxyethyl propionate-1-13C-d3, where the 13C polarization was estimated to be P13C=20+/-2.5% corresponding to 13C signal enhancement approximately 25 million fold at 9.1 mT or approximately 77,000-fold 13C enhancement at 3 T with respect to thermally induced polarization at room temperature. PMID- 29028545 TI - Penicillium expansum (compatible) and Penicillium digitatum (non-host) pathogen infection differentially alter ethylene biosynthesis in apple fruit. AB - The role of ethylene on inducing plant resistance or susceptibility to certain fungal pathogens clearly depends on the plant pathogen interaction with little or no-information available focused on the apple-Penicillium interaction. Taken advantage that Penicillium expansum is the compatible pathogen and P. digitatum is the non-host of apples, the present study aimed at deciphering how each Penicillium spp. could interfere in the fruit ethylene biosynthesis at the biochemical and molecular level. The infection capacity and different aspects related to the ethylene biosynthesis were conducted at different times post inoculation. The results show that the fruit ethylene biosynthesis was differently altered during the P. expansum infection than in response to other biotic (non-host pathogen P. digitatum) or abiotic stresses (wounding). The first symptoms of the disease due to P. expansum were visible before the initiation of the fruit ethylene climacteric burst. Indeed, the ethylene climacteric burst was reduced in response to P. expansum concomitant to an important induction of MdACO3 gene expression and an inhibition (ca. 3-fold) and overexpression (ca. 2 fold) of ACO (1-Aminocyclopropane-1-carboxylic acid oxidase) and ACS (1 Aminocyclopropane-1-carboxylic acid synthase) enzyme activities, indicating a putative role of MdACO3 in the P. expansum-apple interaction which may, in turn, be related to System-1 ethylene biosynthesis. System-1 is auto-inhibited by ethylene and is characteristic of non-climateric or pre-climacteric fruit. Accordingly, we hypothesise that P. expansum may 'manipulate' the endogenous ethylene biosynthesis in apples, leading to the circumvention or suppression of effective defences hence facilitating its colonization. PMID- 29028546 TI - Enzymatic characterization and crystal structure analysis of Chlamydomonas reinhardtii dehydroascorbate reductase and their implications for oxidative stress. AB - Dehydroascorbate reductase (DHAR) is a key enzyme for glutathione (GSH)-dependent reduction of dehydroascorbate (DHA) to recycled ascorbate (AsA) in plants, and plays a major role against the toxicity of reactive oxygen species (ROS). Previously, we proposed that the increase of AsA regeneration via enhanced DHAR activity modulates the ascorbate-glutathione cycle activity against photooxidative stress in Chlamydomonas reinhardtii. In the present work, we use site-directed mutagenesis and crystal structure analysis to elucidate the molecular basis of how C. reinhardtii DHAR (CrDHAR1) is involved in the detoxification mechanisms. Mutagenesis data show that the D21A, D21N and C22A mutations result in severe loss of the enzyme's function, suggesting crucial roles of Asp-21 and Cys-22 in substrate binding and catalysis. The mutant K11A also exhibits reduced redox activity (~50%). The crystal structure of apo CrDHAR1 further provides insights into the proposed mechanism centering on the strictly conserved Cys-22, which is suggested to initiate the redox reactions of DHA and GSH. Furthermore, in vitro oxidation of the recombinant CrDHAR1 in the presence of 1 mM H2O2 has minor effects on the Km for the substrates but significantly reduces the kcat. The enzyme's activity and its mRNA abundance in the C. reinhardtii cells are increased by treatment with 0.2-1 mM H2O2 but decreased when H2O2 is >= 1.5 mM. The latter decrease is accompanied by oxidative damage and lower AsA concentrations. These biochemical and physiological data provide new insights into the catalytic mechanism of CrDHAR1, which protects the C. reinhardtii cells from oxidative stress-induced toxicity. PMID- 29028547 TI - (+)-Borneol improves the efficacy of edaravone against DSS-induced colitis by promoting M2 macrophages polarization via JAK2-STAT3 signaling pathway. AB - Compound edaravone injection (C.EDA), a compound preparation composed of edaravone (EDA) and (+)-Borneol with the mass ratio of 4: 1, displays a better anti-inflammatory activity than EDA. However, its precise mechanism remains to be further studied. In this work, we investigated whether (+)-Borneol could improve the efficacy of EDA against DSS-induced colitis. We found that C.EDA at 7.5 and 15mg/kg could significantly relieve the disease activity index (DAI) and reduce the loss of body weight and colon length in a dose-dependent manner, while EDA or (+)-Borneol alone only had moderate effects even at the highest dose. Additionally, ELISA revealed that C.EDA could more dramatically decrease the protein levels of inflammatory cytokines and increase the levels of anti inflammatory cytokine than EDA or (+)-Borneol alone both in colon tissues and serum. H&E staining and IHC assay also indicated that C.EDA exhibited more prominent effects on increasing the population of M2 macrophages, decreasing M1 macrophages infiltration and protecting intestinal barrier integrity. Furthermore, in vitro studied demonstrated that C.EDA, EDA or (+)-Borneol failed in inhibiting M1 macrophages activation but could specifically induce the activation of M2 macrophages in a STAT3-dependent manner. Knockdown the expression of STAT3 successfully abolished the effect of C.EDA and EDA on promoting M2 macrophages activation. Consistent with in vivo study, C.EDA exhibited a more efficient ability of inducing M2 macrophages polarization and STAT3 activation than EDA or (+)-Borneol alone in vitro. In conclusion, we confirmed that (+)-Borneol improved the efficacy of EDA against DSS-induced colitis by promoting M2 macrophages polarization via JAK2-STAT3 signaling pathway. PMID- 29028548 TI - Enhanced antitumor efficacy of arginine modified amphiphilic nanoparticles co delivering doxorubicin and iSur-pDNA via the multiple synergistic effect. AB - Arginine and alpha-tocopherol succinate (alpha-TOS) double grafted N-trimethyl chitosan chloride (TMC) nanoparticles (TAS NPs) were designed and developed for effective co-delivery of doxorubicin (DOX) and Survivin shRNA-expressing pDNA (iSur-pDNA). With DOX loading into the hydrophobic core and iSur-pDNA combining to the hydrophilic shell, TAS/DOX/pDNA NPs demonstrated favorable structural stability and sustained release properties in vitro. With the special non clathrin-dependent endocytosis, TAS/DOX/pDNA NPs presented higher cellular uptake and mainly distributed in ER and Golgi rather than lysosomes following internalization. The in vitro nuclear localization, gene silencing efficiency, cell apoptosis, and growth inhibition of tumor cells were significantly promoted by arginine modification. In the tumor-bearing mice model, TAS/DOX/pDNA NPs possessed the maximum antitumor efficiency as compared with single delivery of DOX or iSur-pDNA. Particularly, blank TAS NPs were selectively be toxic to tumor cells as evidenced by their capabilities to inhibit proliferation and induce apoptosis of tumor cells. The promising tumor treatment of TAS/DOX/pDNA NPs via a multiple synergistic manner arising from DOX and pDNA as well as the vectors would provide a potential strategy for a dual-delivery system to improve their therapeutic efficacies. PMID- 29028549 TI - MTA promotes chemotaxis and chemokinesis of immune cells through distinct calcium sensing receptor signaling pathways. AB - Mineral trioxide aggregate (MTA) has been introduced as a choice material for regenerative dentistry. To date, the diverse biological activities of MTA, including its anti-inflammatory effects, have been extensively discussed. However, there is limited insight into the link between MTA and immune cell migration. In this study, we report the role of MTA in enhancing both chemotactic and chemokinetic immune cell migration through distinct signaling pathways. By using versatile live imaging techniques, we demonstrated that MTA-mediated CaSR activation induced diverse downstream pathways to govern cell migratory capacity. In this context, Cdc42 generates cytoskeleton-driven cellular protrusions to steer directional cell migration (chemotaxis) whereas Ca2+-calmodulin dependent myosin light chain kinase induces cell contractility that plays an important role in speeding up the average migration speed (chemokinesis). Our findings illuminate an unrecognized role for MTA and the related CaSR signaling network in immune cell migration, providing evidence that can drive development of novel approaches to immunological therapy. PMID- 29028550 TI - Paternal exposure to environmental 17-alpha-ethinylestradiol concentrations modifies testicular transcription, affecting the sperm transcript content and the offspring performance in zebrafish. AB - The synthetic estrogen 17-alpha-ethinylestradiol (EE2), a major constituent in contraceptive pills, is an endocrine disrupting chemical (EDC) present in the aquatic environment at concentrations of ng/L. Developmental exposure to these low concentrations in fish can induce several disorders. Zebrafish (Danio rerio) is a perfect organism for monitoring the effects of environmental contaminants. Our hypothesis is that changes promoted by EE2 in the germ line of male adults could be transmitted to the unexposed progeny. We exposed male zebrafish to 2.5, 5 and 10ng/L of EE2 during spermatogenesis and mated them with untreated females. Detailed progeny development was studied concentrating to survival, hatching and malformations. Due to the high incidence of lymphedemas within larvae, we performed qPCR analysis of genes involved in lymphatic development (vegfc and vegfr3) and endothelial cell migration guidance (cxcr4a and cxcl12b). Estrogen receptor (ER) transcript presence was also evaluated in sperm, testis and embryos. Progenies showed a range of disorders although at a low incidence: skeletal distortions, uninflated swimbladder, lymphedema formation, cartilage deformities and otolith tethering. Swimming evaluation revealed less active locomotion. All these processes are related to pathways involving ERs (esr1, esr2a and esr2b). mRNA analysis revealed that environmental EE2 causes the up regulation of esr1 an esr2b in testis and the increase of esr2b transcripts in sperm pointing to a link between lymphedema in embryos and ER expression impairment. We demonstrate that the effects induced by environmental toxicants can be paternally inherited and point to the changes on the sperm transcriptome as the responsible mechanism. PMID- 29028551 TI - Exploring the safety in numbers effect for vulnerable road users on a macroscopic scale. AB - A "Safety in Numbers" effect for a certain group of road users is present if the number of crashes increases at a lower rate than the number of road users. The existence of this effect has been invoked to justify investments in multimodal transportation improvements in order to create more sustainable urban transportation systems by encouraging walking, biking, and transit ridership. The goal of this paper is to explore safety in numbers effect for cyclists and pedestrians in areas with different levels of access to multimodal infrastructure. Data from Chicago served to estimate the expected number of crashes on the census tract level by applying Generalized Additive Models (GAM) to capture spatial dependence in crash data. Measures of trip generation, multimodal infrastructure, network connectivity and completeness, and accessibility were used to model travel exposure in terms of activity, number of trips, trip length, travel opportunities, and conflicts. The results show that a safety in numbers effect exists on a macroscopic level for motor vehicles, pedestrians, and bicyclists. PMID- 29028552 TI - Risk-reducing salpingo-oophorectomy in BRCA1 and BRCA2 mutated patients: An evidence-based approach on what women should know. AB - This review is focused on the ovarian cancer risk reduction management in BRCA mutation carriers and is intended to assist with clinical decision-making. Obviously, treatment decisions must be based on the available evidence. Despite risk-reducing salpingo-oophorectomy is firmly recommended, several separate questions can be raised to address the variety of intense controversy of this approach. A special emphasis lies in the effective preventive surgical measure against ovarian cancer risk, in an attempt to detect the optimal timing and mitigate the impact on patients. The long term implications of risk-reducing salpingo-oophorectomy as well as hormone replacement therapy are also actively debated. This is expected to represent an opportunity for improved management modelling of BRCA mutated patients. PMID- 29028553 TI - A nationwide analysis of intensive care unit admissions, 2009-2014 - The Korean ICU National Data (KIND) study. AB - PURPOSE: To evaluate unbiased information on the characteristics, procedures, and outcomes of intensive care unit (ICU) admissions in a long-term nationwide study. MATERIALS AND METHODS: Cohort study of all ICU admissions in patients >18years of age in Korea between August 1, 2009 and September 30, 2014 (1,553,673 ICU admissions in 1,265,509 patients). RESULTS: From August 2009 to September 2014, the age-standardized ICU admission rate was 744.6 per 100,000 person-years (869.5 per 100,000 person-years in men and 622.0 per 100,000 person-years in women). The overall in-hospital mortality was 13.8% (14.1% in men and 13.5% in women). Among all Koreans, the ICU mortality rate was 102.9 per 100,000 person-years (122.5 per 100,000 person years in men and 83.8 per 100,000 person years in women). The median ICU and hospital length of stay were 4 and 13days, respectively. The median cost per ICU admission was $5051, which increased steadily over the study period. There were marked differences by gender in ICU admission rates, aggressive support, and outcomes. CONCLUSIONS: Our study identified increasing trends in ICU admissions and utilization of advance life support systems that add to the burden of care in a developed society. PMID- 29028554 TI - Recovery capital pathways: Modelling the components of recovery wellbeing. AB - BACKGROUND: In recent years, there has been recognition that recovery is a journey that involves the growth of recovery capital. Thus, recovery capital has become a commonly used term in addiction treatment and research yet its operationalization and measurement has been limited. Due to these limitations, there is little understanding of long-term recovery pathways and their clinical application. METHODS: We used the data of 546 participants from eight different recovery residences spread across Florida, USA. We calculated internal consistency for recovery capital and wellbeing, then assessed their factor structure via confirmatory factor analysis. The relationships between time, recovery barriers and strengths, wellbeing and recovery capital, as well as the moderating effect of gender, were estimated using structural equations modelling. RESULTS: The proposed model obtained an acceptable fit (chi2 (141, N=546)=533.642, p<0.001; CMIN/DF=3.785; CFI=0.915; TLI=0.896; RMSEA=0.071). Findings indicate a pathway to recovery capital that involves greater time in residence ('retention'), linked to an increase in meaningful activities and a reduction in barriers to recovery and unmet needs that, in turn, promote recovery capital and positive wellbeing. Gender differences were observed. CONCLUSIONS: We tested the pathways to recovery for residents in the recovery housing population. Our results have implications not only for retention as a predictor of sustained recovery and wellbeing but also for the importance of meaningful activities in promoting recovery capital and wellbeing. PMID- 29028555 TI - Shifting characteristics of ecstasy users ages 12-34 in the United States, 2007 2014. AB - BACKGROUND: Ecstasy/MDMA has been one of the most prevalent party drugs for decades, and powder ecstasy recently increased in popularity. We examined trends in use to determine who to best target for prevention and harm reduction. METHODS: Secondary analysis of the 2007-2014 National Survey on Drug Use and Health, a repeated cross-sectional, nationally representative probability sample, was conducted. Linear trends in past-year ecstasy use and trends in demographic and other past-year substance use characteristics among ecstasy users were examined among participants ages 12-34 (N=332,560). RESULTS: Past-year prevalence of ecstasy use was stable across years at 2% (P=0.693). Over time, the proportion of ecstasy users with a college degree increased from 11.5% in 2007/08 to 24.5% in 2013/14 (P<0.001). The proportion of users who were age 12-17 decreased, as did proportions of users who are non-Hispanic black, and reported income <$20,000/year (Ps<0.001). Prevalence of past-year use of marijuana, LSD, ketamine, and DMT/AMT/Foxy increased among ecstasy users (Ps<0.05); DMT/AMT/Foxy use increased more than four-fold from 2.1% in 2007/08 to 8.7% in 2013/14. Perception of great risk associated with LSD use decreased among users and ease of obtaining LSD increased (Ps<0.05). Past-year use of 5 or more other substances also increased over time (P<0.05). CONCLUSIONS: Ecstasy use in the US appears to be increasing among those with college degrees and use of other substances among ecstasy users is growing-particularly use of otherwise rare substances such as tryptamines. Results inform prevention and harm reduction strategies in this increasingly shifting group of ecstasy users. PMID- 29028556 TI - Buspirone maintenance does not alter the reinforcing, subjective, and cardiovascular effects of intranasal methamphetamine. AB - BACKGROUND: Medications development efforts for methamphetamine-use disorder have targeted central monoamines because these systems are directly involved in the effects of methamphetamine. Buspirone is a dopamine autoreceptor and D3 receptor antagonist and partial agonist at serotonin 1A receptors, making it a logical candidate medication for methamphetamine-use disorder. Buspirone effects on abuse related behaviors of methamphetamine have been mixed in clinical and preclinical studies. Experimental research using maintenance dosing, which models therapeutic use, is limited. This study evaluated the influence of buspirone maintenance on the reinforcing effects of methamphetamine using a self-administration procedure, which has predictive validity for clinical efficacy. The impact of buspirone maintenance on the subjective and cardiovascular response to methamphetamine was also determined. METHODS: Eight research participants (1 female) reporting recent illicit stimulant use completed a placebo-controlled, crossover, double-blind protocol in which the pharmacodynamic effects of intranasal methamphetamine (0, 15, and 30mg) were assessed after at least 6days of buspirone (0 and 45mg/day) maintenance. RESULTS: Intranasal methamphetamine functioned as a reinforcer and produced prototypical stimulant-like subjective (e.g., increased ratings of Good Effects and Like Drug) and cardiovascular (e.g., elevated blood pressure) effects. These effects of methamphetamine were similar under buspirone and placebo maintenance conditions. Maintenance on buspirone was well tolerated and devoid of effects when administered alone. CONCLUSIONS: These data suggest that buspirone is unlikely to be an effective pharmacotherapy for methamphetamine-use disorder. Given the central role of monoamines in methamphetamine-use disorder, it is reasonable for future studies to continue to target these systems. PMID- 29028557 TI - Understanding the association between stunting and child development in low- and middle-income countries: Next steps for research and intervention. AB - Stunting, caused by experiences of chronic nutritional deprivation, affects approximately 25% of children under age five globally (i.e., 156 million children). In this review, evidence of a relationship between stunting and child development in low- and middle-income countries is summarized, and issues for further research are discussed. We focus on studies that measured low height-for age among children less than 5 years old as the exposure and gross/fine motor skills, psychosocial competencies, cognitive abilities, or schooling and learning milestones as the outcomes. This review highlights three key findings. First, the variability in child development tools and metrics used among studies and the differences in the timing and frequency of the assessments complicate comparisons across study findings. Second, considerable evidence from across many countries supports an association between stunting and poor child development despite methodological differences and heterogeneity in the magnitude of associations. Further, effect sizes differ by developmental domain with greater associations shown for cognitive/schooling outcomes. How stunting influences child development, which domains of child development are more affected, and how the various domains of child development influence one another require further experimental research to test causal pathways. Finally, there is mixed evidence of the additive effect of nutrition + stimulation interventions on child development. However, understanding best methods for improving child developmental outcomes - either through nutrition programs or through integrated nutrition + psychosocial stimulation programs (or nutrition + other program interventions) - is a key area of further inquiry. Given that nearly 40% of children under age five suffer from loss of developmental potential - for which stunting is likely one of the key risk factors - reductions in stunting could have tremendous implications for child development and human capital formation, particularly in low- and middle-income countries. PMID- 29028558 TI - Determinants of trust in the flu vaccine for African Americans and Whites. AB - Trust is thought to be a major factor in vaccine decisions, but few studies have empirically tested the role of trust in adult immunization. Utilizing a 2015 national survey of African American and White adults (n = 1630), we explore multiple dimensions of trust related to influenza immunization, including generalized trust, trust in the flu vaccine, and trust in the vaccine production process. We find African Americans report lower trust than Whites across all trust measures. When considering demographic, racial, and ideological predictors, generalized trust shows statistically significant effects on both trust in the flu vaccine and trust in the vaccine process. When controlling for demographic, racial, and ideological variables, higher generalized trust was significantly associated with higher trust in the flu vaccine and the vaccine process. When controlling for generalized trust, in addition to the baseline covariates, psychosocial predictors (i.e. risk perception, social norms, knowledge) are significant predictors of trust in flu vaccine and trust in the vaccine process, with significant differences by race. These findings suggest that trust in vaccination is complex, and that significant differences in trust between White and African American adults may be contributing to disparities in influenza immunization. PMID- 29028560 TI - Racial discrimination and cortisol output: A meta-analysis. AB - RATIONALE: Although the relation between stress and physiology is well documented, attempts at understanding the link between racial discrimination and cortisol output, specifically, have produced mixed results, likely due to study characteristics such as racial/ethnic composition of the samples (e.g., African American, Latino), measures of discrimination, and research design (e.g., cross sectional, experimental). OBJECTIVES: To estimate the overall association between racial discrimination and cortisol output among racial/ethnic minority individuals and to determine if the association between racial discrimination and cortisol output is moderated by age, race/ethnicity, type of discrimination measure, sex, and research design. RESULTS: Using a random effects model, the overall effect size based on k = 16 studies (19% unpublished) and N = 1506 participants was r- = 0.040, 95% CI = -0.038 to 0.117. Studies were conducted predominantly in the U.S. (81%). Notably, experimental studies (r- = 0.267) exhibited larger effect sizes compared to non-experimental studies (r- = -0.007). Age, race/ethnicity, type of discrimination measure, and sex did not moderate the effect sizes. CONCLUSION: This meta-analysis provides evidence that the measurement of the association between racial discrimination and cortisol is complex, and it offers valuable insight regarding methods and designs that can inform future research on this topic. Limitations and future directions are discussed. PMID- 29028559 TI - "What's the right thing to do?" Correctional healthcare providers' knowledge, attitudes and experiences caring for transgender inmates. AB - RATIONAL: Incarcerated transgender individuals may need to access physical and mental health services to meet their general and gender-affirming (e.g., hormones, surgery) medical needs while incarcerated. OBJECTIVE: This study sought to examine correctional healthcare providers' knowledge of, attitudes toward, and experiences providing care to transgender inmates. METHOD: In 2016, 20 correctional healthcare providers (e.g., physicians, social workers, psychologists, mental health counselors) from New England participated in in depth, semi-structured interviews examining their experiences caring for transgender inmates. The interview guide drew on healthcare-related interviews with recently incarcerated transgender women and key informant interviews with correctional healthcare providers and administrators. Data were analyzed using a modified grounded theory framework and thematic analysis. RESULTS: Findings revealed that transgender inmates do not consistently receive adequate or gender affirming care while incarcerated. Factors at the structural level (i.e., lack of training, restrictive healthcare policies, limited budget, and an unsupportive prison culture); interpersonal level (i.e., custody staff bias); and individual level (i.e., lack of transgender cultural and clinical competence) impede correctional healthcare providers' ability to provide gender-affirming care to transgender patients. These factors result in negative health consequences for incarcerated transgender patients. CONCLUSIONS: Results call for transgender specific healthcare policy changes and the implementation of transgender competency trainings for both correctional healthcare providers and custody staff (e.g., officers, lieutenants, wardens). PMID- 29028561 TI - Stability and drug release studies of an antimycotic nanomedicine using HPLC, dynamic light scattering and atomic force microscopy. AB - Much attention has been paid to nanoparticle-based drug delivery systems to selectively deliver drugs to target organs and tissues. In this study, AmBisome, an antimycotic nanomedicine containing amphotericin B, was chosen as a typical nanomedicine, and analyzed using dynamic light scattering (DLS), an easy method to measure size, and size distribution, atomic force microscopy (AFM) and high performance liquid chromatography (HPLC). AFM allowed the analysis of shape, besides a detailed size and size distribution. HPLC is useful to quantify the released amount of amphotericin B as it succeeded in a rapid separation of AmBisome and free amphotericin B. The aggregation or collapse of AmBisome and release of amphotericin B occurred upon 75% methanol addition or dilution with buffer around pH 4. Therefore, it is important to analyze nanomedicines using multiple analytical methods, and to integrate them for the quality and quantity evaluation of nanomedicines. PMID- 29028562 TI - Common and differential factors associated with abstinence and poly drug use among Australian adolescents. AB - BACKGROUND: Social norms relating to youth substance use are changing. In Australia, alcohol use among adolescents has fallen dramatically and tobacco and cannabis use have also reduced, albeit more moderately. The aim of the present study was to identify (i) factors associated with compliance with recommendations for zero intake of alcohol, tobacco, and cannabis and (ii) factors associated with poly drug use (intake of all three substances). METHODS: As part of the Young Minds Matter Study, a self-report survey was administered to 1661 Australian adolescents aged 15-17 years. The survey included items relating to: substance use; psychological, social, and protective factors; and demographic characteristics. Probit regression analyses were conducted to generate a model of factors associated with abstinence from all three substances and a model of factors associated with the use of all three substances. RESULTS: While there were substantial differences between the two models indicating that different factors may influence the initiation of substance use versus poly drug use, there were also several common factors that operated in opposite directions. These were child age, degree of parental supervision and monitoring, the experience of externalising problems, and a diagnosis of major depression. CONCLUSION: The results highlight the potential utility of targeting high-risk youth by identifying (i) parents' supervision and monitoring behaviours and (ii) children's externalising problems and symptoms of depression. Directly addressing these factors in substance-use interventions may delay or prevent initiation while also reducing the likelihood of adolescents engaging in poly drug use. PMID- 29028563 TI - Exploring the relationship between online buyers and sellers of image and performance enhancing drugs (IPEDs): Quality issues, trust and self-regulation. AB - BACKGROUND: Online drug markets are expanding the boundaries of drug supply including the sale and purchase of image and performance enhancing drugs (IPEDs). However, the role of the internet in IPED markets, and in particular the ways in which these substances are supplied via the surface web, has rarely been considered. This article examines the online IPED market in order to inform drug policy and to provide a nuanced understanding of retailers involved, particularly exploring the relationship between buyers and sellers. METHODS: This paper is based on two extensive research projects conducted in the Netherlands and Belgium. The first project focuses on muscle drugs and is based on 64 IPED dealing cases, semi-structured interviews with authorities (N=32), and dealers (N=15), along with an analysis of 10 steroid-selling websites. The second research project primarily focuses on weight loss drugs and sexual enhancers in the Netherlands, and relies on interviews with authorities (N=38), suppliers (N=30), and consumers (N=10), analysis of 69 criminal case files, and an online analysis. RESULTS: In the literature, the illicit online sale of IPEDs is generally associated with illegal online pharmacies that try to mislead buyers. While confirmed in our research, we also illustrate that there are online suppliers who invest in customer relationships and services, and that users are aware of the illegal nature of their business. These e-vendors incorporate a 'social supply business model' by providing the best possible service to their customers and attempting to minimise risks in order to attract, satisfy and maintain customers. CONCLUSION: As it is likely that users will continue to make use of the internet to order IPEDs, regardless of closing down selling websites, it is first of all important to counteract these online sources by educating all types of consumers and providing harm reduction services. PMID- 29028566 TI - Concept mapping to promote meaningful learning, help relate theory to practice and improve learning self-efficacy in Asian mental health nursing students: A mixed-methods pilot study. AB - OBJECTIVES: Student nurses are provided with a great deal of knowledge within university, but they can find it difficult to relate theory to nursing practice. This study aimed to test the appropriateness and feasibility of assessing Novak's concept mapping as an educational strategy to strengthen the theory-practice link, encourage meaningful learning and enhance learning self-efficacy in nursing students. DESIGN: This pilot study utilised a mixed-methods quasi-experimental design. SETTING: The study was conducted in a University school of Nursing in Hong Kong. PARTICIPANTS: A total of 40 third-year pre-registration Asian mental health nursing students completed the study; 12 in the concept mapping (CM) group and 28 in the usual teaching methods (UTM) group. METHODS: The impact of concept mapping was evaluated thorough analysis of quantitative changes in students' learning self-efficacy, analysis of the structure and contents of the concept maps (CM group), a quantitative measure of students' opinions about their reflective learning activities and content analysis of qualitative data from reflective written accounts (CM group). RESULTS: There were no significant differences in self-reported learning self-efficacy between the two groups (p=0.38). The concept mapping helped students identify their current level of understanding, but the increased awareness may cause an initial drop in learning self-efficacy. The results highlight that most CM students were able to demonstrate meaningful learning and perceived that concept mapping was a useful reflective learning strategy to help them to link theory and practice. CONCLUSIONS: The results provide preliminary evidence that the concept mapping approach can be useful to help mental health nursing students visualise their learning progress and encourage the integration of theoretical knowledge with clinical knowledge. Combining concept mapping data with quantitative measures and qualitative reflective journal data appears to be a useful way of assessing and understanding the effectiveness of concept mapping. Future studies should utilise a larger sample size and consider using the approach as a targeted intervention immediately before and during clinical learning placements. PMID- 29028565 TI - Human papillomavirus vaccine initiation in Asian Indians and Asian subpopulations: a case for examining disaggregated data in public health research. AB - OBJECTIVES: Vaccine disparities research often focuses on differences between the five main racial and ethnic classifications, ignoring heterogeneity of subpopulations. Considering this knowledge gap, we examined human papillomavirus (HPV) vaccine initiation in Asian Indians and Asian subpopulations. STUDY DESIGN: National Health Interview Survey data (2008-2013), collected by the National Center for Health Statistics, were analyzed. METHODS: Multiple logistic regression analysis was conducted on adults aged 18-26 years (n = 20,040). RESULTS: Asian Indians had high income, education, and health insurance coverage, all positive predictors of preventative health engagement and vaccine uptake. However, we find that Asian Indians had comparatively lower rates of HPV vaccine initiation (odds ratio = 0.41; 95% confidence interval = 0.207-0.832), and foreign-born Asian Indians had the lowest rate HPV vaccination of all subpopulations (2.3%). CONCLUSIONS: Findings substantiate the need for research on disaggregated data rather than evaluating vaccination behaviors solely across standard racial and ethnic categories. We identified two populations that were initiating HPV vaccine at abysmal levels: foreign-born persons and Asian Indians. Development of culturally appropriate messaging has the potential to improve these initiation rates and improve population health. PMID- 29028564 TI - Assessing police officers' attitudes and legal knowledge on behaviors that impact HIV transmission among people who inject drugs. AB - BACKGROUND: Policing practices such as syringe confiscation and arrest can act as important social-structural drivers of HIV risk among people who inject drugs (PWID). However, police referral to treatment and other services may improve the health of PWID. Little is known about the role of modifiable attitudinal and knowledge factors in shaping officer behavior. Using baseline findings from a police education program (PEP), we assessed relationships between drug policy knowledge and attitudes towards public health interventions with self-reported syringe confiscation, drug arrest, and service referral among street-level police in Tijuana, Mexico. METHODS: Between February, 2015 and May, 2016 we surveyed 1319 police officers who reported syringe contact. The self-administered survey focused on attitudes, knowledge, and behaviors related to drug policy, public health, and occupational safety. We used ordinal logistic regression to model the odds of syringe confiscation, arrest for heroin possession, and referring PWID to health/social programs. RESULTS: The sample was mostly male (87%) and had at least a high school education (80%). In the last six months, a minority reported always/sometimes confiscating syringes (49%), arresting someone for heroin possession (43%), and referring PWID to health and social programs (37%). Those reporting needlestick injuries (NSI) had 1.38 (95% CI: 1.02-1.87) higher odds of reporting syringe confiscation. Officers who had favorable views on laws that treat addiction as a public health issue had lower odds (aOR=0.78; 95% CI: 0.59 1.03) of arresting PWID. Those agreeing that it was their role to refer PWID to health and social programs had higher odds of reporting such referrals (aOR: 3.32, 95% CI: 2.52-4.37). Legal knowledge was not associated with these practices. CONCLUSION: Changing drug policy and knowledge may be insufficient in shifting police behavior. Modifying officers' occupational risks and attitudes towards harm reduction interventions can facilitate efforts to align police practices with PWID health. PMID- 29028567 TI - Accessibility of prison healthcare for elderly inmates, a qualitative assessment. AB - Aging in custody and the rising population of elderly prisoners are creating compelling challenges for criminal justice, prison and public healthcare systems. Geriatric syndrome and higher prevalence of co-morbidities amongst older inmates result in heightened vulnerability in prison environments. Empirical research addressing older adults' access to medical care in detention is scarce; therefore, this study assessed access to medical care in prison from the perspective of older prisoners in Switzerland. We interviewed a sample of 35 older inmates (average age 61 years) on their experience of healthcare accessibility in prison; data were qualitatively analysed and major themes regarding evaluation of their access to medical services were extracted. Our findings identified three barriers to accessing health services in prison including psychological obstacles, negative consequences of healthcare utilization, and environmental hurdles. We advocate facilitating older inmates' access to medical care in order to relieve the psychological burden of seeking health services in detention and adequately informing them of their right to demand these services, thereby lessening the negative consequences of their requests. We suggest further training of prison and medical staff for better management of age-related issues in prison can ease the environmental obstacles. PMID- 29028568 TI - Virulence genotypes and antimicrobial susceptibility patterns of Arcobacter butzleri isolated from seafood and its environment. AB - Arcobacter butzleri is an emerging pathogen isolated from animals, food and the environment. In this study, 147 A. butzleri isolated from seafood and the coastal environment were tested for the presence of ten putative virulence genes (cadF, cj1349, ciaB, mviN, pldA, tlyA, hecA, hecB, irgA, iroE) and antimicrobial susceptibilities. Majority of the isolates harbored mviN (100%), cj1349 (97.2%), ciaB (95.9%), tlyA (91.8%), pldA (91.1%) and cadF (89.7%). Lower detection rates were observed for hecA (10.8%), hecB (19%), iroE (12.9%) and irgA (17.6%). Three A. butzleri isolates harbored all ten virulence genes. The occurrence of cj1349, ciaB, pldA, tlyA and hecA genes was significantly different (P<=0.05) among the isolates from different sources. All (100%) A. butzleri isolates were resistant to vancomycin, cephalothin, cefoxitin and sulphamethizole and susceptible to polymyxin-B, kanamycin, streptomycin, gentamicin, tetracycline and imipenem. Resistance to clinically important antibiotics such as cefotaxime (99.3%), ceftazidime (87.7%), nalidixic acid (70.7%), ampicillin (72.1%), ertapenem and amoxicillin-clavulanic acid (41.9%) was observed in A. butzleri from the environment. The isolates were highly susceptible to norfloxacin (97.9%) and colistin (97.2%), followed by ciprofloxacin (88.4%), meropenem (74.8%), chloramphenicol (72.7%) and erythromycin (69.3%). A. butzleri from different sources were not significantly different with respect to their antimicrobial susceptibility patterns. Multidrug resistance was observed in 66 (81.4%) isolates from fish, 29 (72.5%) isolates from shellfish and 17 (65.3%) isolates from coastal water. A. butzleri harboring virulence genes and resistance to multiple antibiotics found in seafood could be a potential health risk to seafood handlers and consumers. Continuous monitoring of seafood for potentially pathogenic A. butzleri is important to understand the evolution of antibiotic resistance in this emerging food pathogen and to determine the antimicrobial therapy regimen in the event of food-borne A. butzleri infections. PMID- 29028569 TI - Occurrence of transferable antibiotic resistances in commercialized ready-to-eat mealworms (Tenebrio molitor L.). AB - The present study aimed to assess the occurrence of transferable determinants conferring resistance to tetracyclines, macrolide-lincosamide-streptogramin B, vancomycin, beta-lactams, and aminoglycosides in 40 samples of commercialized edible mealworms (Tenebrio molitor L.) purchased from European Union (EU) and non EU producers. A high prevalence of tet(K) was observed in all of the samples assayed, with percentages of PCR-based positivity that ranged from 80% (samples from Thailand) to 100% (samples from the Netherlands, Belgium and France). For macrolides, erm(B) prevailed, being detected in 57.5% of the samples assayed, whereas erm(A) and erm(C) were detected with lower frequencies. Genes for resistance to vancomycin were only detected in samples produced in France and Belgium, with 90% and 10% of the samples being positive for vanA, respectively. Beta-lactamase genes were found with low occurrence, whereas the gene aac-aph, conferring high resistance to aminoglycosides, was found in 40% of the samples produced in the Netherlands and Belgium and 20% of the samples produced in Thailand. The results of Principal Coordinate Analysis and Principal Component Analysis depicted a clean separation of the samples collected from the four producers based on the distribution of the 12 AR determinants considered. Given the growing interest on the use of mealworms as a novel protein source, AR detection frequencies found in the present study suggest further investigation into the use of antibiotics during rearing of this insect species and more extensive studies focused on the factors that can affect the diffusion of transferable ARs in the production chain. Until such studies are completed, prudent use of antibiotics during rearing of edible insects is recommended. PMID- 29028570 TI - Bovine ovarian follicular growth and development correlate with lysophosphatidic acid expression. AB - The basis of successful reproduction is proper ovarian follicular growth and development. In addition to prostaglandins and vascular endothelial growth factor, a number of novel factors are suggested as important regulators of follicular growth and development: PGES, TFG, CD36, RABGAP1, DBI and BTC. This study focuses on examining the expression of these factors in granulosa and thecal cells that originate from different ovarian follicle types and their link with the expression of lysophosphatidic acid (LPA), known local regulator of reproductive functions in the cow. Ovarian follicles were divided into healthy, transitional, and atretic categories. The mRNA expression levels for PGES, TFG, CD36, RABGAP1, DBI and BTC in granulosa and thecal cells in different follicle types were measured by real-time PCR. The correlations among expression of enzymes synthesizing LPA (autotaxin, phospholipase A2), receptors for LPA and examined factors were measured. Immunolocalization of PGES, TFG, CD36, RABGAP1, DBI and BTC was examined by immunohistochemistry. We investigated follicle-type dependent mRNA expression of factors potentially involved in ovarian follicular growth and development, both in granulosa and thecal cells of bovine ovarian follicles. Strong correlations among receptors for LPA, enzymes synthesizing LPA, and the examined factors in healthy and transitional follicles were observed, with its strongest interconnection with TFG, DBI and RABGAP1 in granulosa cells, and TFG in thecal cells; whereas no correlations in atretic follicles were detected. A greater number of correlations were found in thecal cells than in granulosa cells as well as in healthy follicles than in transitional follicles. These data indicate the role of LPA in the growth, development and physiology of the bovine ovarian follicle. PMID- 29028571 TI - Identifying ovarian tissue in the bitch using anti-Mullerian hormone (AMH) or luteinizing hormone (LH). AB - Reliable methods for determining whether or not a bitch has ovarian tissue present are needed for cases with unknown neutering status. Vaginal cytology consistent with heat is indicative of functional ovarian tissue. Other methods are required when the bitch is not presented in suspected heat. Progesterone can be analyzed during 2 months after suspected heat. During other stages, assays for the analyses of anti-Mullerian hormone (AMH) and luteinizing hormone (LH) have been used. The AMH assay is expected to give detectable concentrations (positive) in bitches with ovarian tissue, and the LH assay should give negative results in intact bitches, except during the pre-ovulatory LH peak. The aim of the present study was to study the diagnostic efficiency for detecting ovarian tissue in bitches using an AMH assay developed for human samples, and a semi-quantitative rapid immune migration (RIMTM) LH assay developed for use in dogs. An AMH concentration of >=0.1 MUg/L, and an LH concentration of <=1 MUg/L, was set as the cut-off for presence of ovarian tissue. Client or staff owned bitches were included (N = 125). There were 73 intact bitches that were classified as being in heat (N = 25); in luteal phase (N = 12); or in anestrus (N = 36), and 52 spayed bitches that showed no clinical signs of estrogen influence. In total 64 of the 73 intact bitches (88%) were correctly identified using AMH, and 70/73 (96%) intact bitches were correctly identified using the LH assay. Excluding bitches in heat, the corresponding figures were 42/48 (88%) for AMH and 48/48 (100%) for LH. Of the 52 spayed bitches, 51 (98%) were correctly identified using the AMH assay and 49 (94%) were correctly identified using the LH assay. In this population, the predictive value of a positive AMH for intact bitches was 98%, and of a negative AMH for spayed bitches was 85%. Excluding bitches in heat, the predictive value of a negative LH test for intact bitches was 94%, and the predictive value of a positive LH test for identifying spayed bitches was 100%. It was concluded that analyses of AMH and LH are useful for detecting ovarian tissue in bitches, but that low concentrations of AMH may be obtained in intact bitches, classifying them as spayed. For LH, bitches in suspected estrus should not be tested to avoid the pre-ovulatory LH-surge, that otherwise may cause intact bitches being incorrectly identified as spayed. PMID- 29028572 TI - Supramolecular gels: using an amide-functionalized imidazolium-based surfactant. AB - Studies on supramolecular gel aggregates via supramolecular interactions are very fascinating and impressive. The interactions of gelator with solvent and inorganic salt can functionalize, activate, or control the properties of supramolecular gels. A lot of work on this area has been done, but all these contributions are only at an early stage. In this work, we tuned the gel formation conditions and properties by using low-molecular-weight gelator (LMWGs), amide-functionalized imidazolium-based surfactant, viz., N-cetyl-N' acetamido imidazolium bromide ([N-C16, N'-CONH2-Im]Br), in different solvents and with inorganic salt additives. Under chemical (Cu2+/H2O2) and physical (temperature) stimuli, gel-sol phase transition occurred in the gel formed from 2 wt% [N-C16, N'-CONH2-Im]Br in the solvent formamide (FM). Accompanied with increased mechanical strength of the gels, morphology alternation from initial straight stripe-shaped structures to curly belt-like textures was observed in the addition of CuBr2. From Small-angle X-ray scattering (SAXS) measurements, bilayer units with interdigitated hydrocarbon tails of the gelator were testified to appear in the gels. Comparative experiments demonstrate that the pi-pi interaction, H-bonding, and hydrophobic interaction between the gelator molecules are the main driving forces for the gelation. The low-cost gelator, facile preparation, and coordination-driven assembly process make the robust gel a good candidate in various applications, such as material templates and drug deliveries. PMID- 29028573 TI - The first protection-free synthesis of magnetic bifunctional l-proline as a highly active and versatile artificial enzyme: Synthesis of imidazole derivatives. AB - l-Proline is a bifunctional versatile organocatalyst that could promote a variety of useful transformations. Some passive and dynamic interactions between this simple amino acid and different substrates, which are necessary to enzymatic reactions, have given it "the simplest enzyme" title. Herein we presented the first report on the synthesis of magnetic bifunctional l-proline as an artificial enzyme without requiring any protection/deprotection steps according to an operationally simple process. This magnetic nano-biocatalyst is a promising catalyst that in a case study was successfully applied for the synthesis of 2,4,5 trisubstituted and 1,2,4,5-tetrasubstituted imidazoles in the 70-99% and 60-90% yields respectively, which it could be extended to the variety of l-proline-based organic transformations. The synergic effect of bifunctional l-proline shell as catalytic active site and magnetite nanoparticles core, which could function as protein mimics endow it high efficiency, versatility, recoverability, reusability and good turnover frequency, which are necessary characters for artificial enzymes' designing. PMID- 29028574 TI - Gravity-directed separation of both immiscible and emulsified oil/water mixtures utilizing coconut shell layer. AB - Pressure-driven and lower flux of superwetting ultrafiltration membranes in various emulsions separation are long-standing issues and major barriers for their large-scale utilization. Even though currently reported membranes have achieved great success in emulsions separeation, they still suffer from low flux and complex fabrication process resulting from their smaller nanoscale pore size. Herein, utilizition of coconut shell as a novel biomaterial for developing into a layer through the simple smashing, cleaning and stacking procedures, which not only could avoid the complexity of film making process, but also could realize efficient gravity-directed separation of both immiscible oil/water mixtures and water-in-oil emulsions with high flux. Specifically, the layer acted as "water removing" type filtrate material with excellent underwater superoleophobicity, exhibiting high efficiency for various immiscible oil/water mixtures separation and larger oil intrusion pressure. More importantly, the layer could also serve as adsorbent material with underoil superhydrophilicity, achieving gravity directed kinds of water-in-oil emulsions separation with high separation efficiency (above 99.99%) and higher flux (above 1620L/m2h), even when their pore sizes are larger than that of emulsified droplets. We deeply believe that this study would open up a new strategy for both immiscible oil/water mixtures and water-in-oil emulsions separation. PMID- 29028575 TI - Green synthesis of highly dispersed ytterbium and thulium co-doped sodium yttrium fluoride microphosphors for in situ light upconversion from near-infrared to blue in animals. AB - We report a simple, low cost and environmentally friendly method to prepare NaYF4:Yb3+, Tm3+ upconversion microphosphors (UCMPs) by thermal decomposition of rare earth-trifluoroacetate precursors using paraffin as the high boiling non coordinating solvent. The UCMPs exhibited cubic phase with defined shape and bright upconversion luminescence. After coating with amphiphilic polymers of phospholipid-polyethylene glycol, the NaYF4:Yb3+, Tm3+ UCMPs were highly dispersed in aqueous solutions and exhibited low cytotoxicity. Furthermore, we explored the use of the micro-injected micro-sized NaYF4:Yb3+, Tm3+ particles for converting of near infrared into blue light in mice brain. The in vivo macroscopic upconversion luminescence imaging results showed that UCMPs located at 1mm depth in the brain could be clearly distinguished. Microscopic upconversion luminescence imaging of the brain sections in vitro revealed that the UCMPs embedded at the particular location in brain tissues of mice were stable without significant diffusion in two weeks. PMID- 29028577 TI - CO2 adsorption at nitrogen-doped carbons prepared by K2CO3 activation of urea modified coconut shell. AB - This article reports on the synthesis and characterization of porous nitrogen doped carbons synthesized by carbonization of coconut shell followed by urea modification and K2CO3 activation. The as-synthesized samples were carefully characterized by various techniques. This series of samples demonstrate high CO2 uptake at 1bar, up to 3.71mmol/g at 25 degrees C in addition to 5.12mmol/g at 0 degrees C. Furthermore, these sorbents possess fast CO2 adsorption kinetics, stable reusability, moderate heat of CO2 adsorption, reasonable CO2/N2 selectivity, and high dynamic CO2 capture capacity under simulated flue gas conditions. It is found that, in addition to nitrogen content and narrow micropore volume, the pore size distribution of narrow micropore also plays a major role in determining the CO2 capture capacity under ambient condition. This work is intended to provide useful information and to inspire ways to develop new carbonaceous sorbents for removing CO2 from combustion flue gas. PMID- 29028576 TI - Bioelectrochromic hydrogel for fast antibiotic-susceptibility testing. AB - Materials science offers new perspectives in the clinical analysis of antimicrobial sensitivity. However, a biomaterial with the capacity to respond to living bacteria has not been developed to date. We present an electrochromic iron(III)-complexed alginate hydrogel sensitive to bacterial metabolism, here applied to fast antibiotic-susceptibility determination. Bacteria under evaluation are entrapped -and pre-concentrated- in the hydrogel matrix by oxidation of iron (II) ions to iron (III) and in situ formation of the alginate hydrogel in less than 2min and in soft experimental conditions (i.e. room temperature, pH 7, aqueous solution). After incubation with the antibiotic (10min), ferricyanide is added to the biomaterial. Bacteria resistant to the antibiotic dose remain alive and reduce ferricyanide to ferrocyanide, which reacts with the iron (III) ions in the hydrogel to produce Prussian Blue molecules. For a bacterial concentration above 107 colony forming units per mL colour development is detectable with the bare eye in less than 20min. The simplicity, sensitivity, low-cost and short response time of the biomaterial and the assay envisages a high impact of these approaches on sensitive sectors such as public health system, food and beverage industries or environmental monitoring. PMID- 29028578 TI - Obstetric early warning score in Scandinavia. A survey of midwives' use of systematic monitoring in parturients. AB - OBJECTIVE: systematic monitoring has recently been implemented widely in non obstetric departments. In the UK, Early Warning Score (EWS) systems specifically designed for the obstetric population (OEWS) are used. No information on the use of OEWS in Scandinavia has been reported. Consequently, we wanted to investigate the use of vital signs and attitude towards systematic monitoring of parturients in Denmark, Norway and Sweden. DESIGN: electronic questionnaires sent to heads of midwifery. The heads of midwifery referred two clinically active midwives. All in hospital obstetric departments in Scandinavia were invited to participate. FINDINGS: heads of midwifery from 76 departments (68%), and 125 clinical midwives (82%) responded. Ten per cent of midwives reported use of OEWS. Reported implementation barriers to OEWS included lack of evidence and suspected impact on the parturient due to frequent interruptions. fifty-four per cent of clinical midwives reported a systolic blood pressure threshold of 90-139mmHg, while 33% reported a threshold of>160mmHg. Ninety-three per cent stated a low threshold for maternal heart rate<60 bpm whereas 10% reported an upper threshold heart rate >= 150 bpm. Forty-seven per cent reported call for assistance thresholds for maternal heart rate at 60-110 bpm. KEY CONCLUSIONS: OEWS is not implemented in Scandinavian obstetric departments and reported thresholds of vital signs varied considerably. Major barriers for implementation in Scandinavia include midwives' concern of interruptions for the parturient and increased workload, and unclear benefit from use of OEWS. Local departments should provide midwives with unambiguous thresholds for vital signs in parturients either through local guidelines or via OEWS. PMID- 29028579 TI - The views of first time mothers completing an intervention to reduce postpartum weight retention: A qualitative evaluation of the mums OnLiNE study. AB - BACKGROUND: maternal postpartum weight retention (PPWR) has implications for short and long term weight-related health of both the mother and child. Little is known about how mothers perceive they may be best supported to achieve a healthy postpartum weight and healthy lifestyle behaviours. Evaluating existing postpartum weight focussed intervention strategies is an important step in the planning of future programs aimed at supporting new mothers. AIM: to describe the perspectives of women who completed the mums OnLiNE pilot intervention, regarding the acceptability and effectiveness of a program which aimed to limit PPWR and promote healthy diet and physical activity behaviours in new mothers. METHOD: descriptive qualitative research methods utilising semi-structured interview questions to explore new mothers' views regarding their participation in the mums OnLiNE intervention were used. All women who completed the intervention were invited to participate in one-on-one interviews via telephone. Interviews were digitally recorded and transcribed verbatim. Data were analysed utilising thematic analysis for common, emerging themes. FINDINGS: twelve women participated in the interviews. Six main themes including program usefulness, intervention components, walking, self-monitoring, barriers and challenges and future recommendations described women's views of the mums OnLiNE intervention. Women felt well supported being part of the program and their reported awareness of healthy eating increased. Telephone support was the most valued and helpful component of the intervention and the smartphone application for self-monitoring was used more often than the website. Walking was by far the most preferred activity as it was considered enjoyable and achievable and some reported that their incidental walking increased as a result of being part of the program. Lack of time and motivation were the main barriers to participation in the program. Suggestions for future programs included encouraging group support and mother baby exercise sessions. CONCLUSION: women perceived the mums OnLiNE intervention to be useful in promoting a healthy lifestyle and valued the support provided. Whilst barriers to participation in healthy lifestyle programs exist, well planned interventions which consider time constraints of new mothers, utilize one on-one support and offer social engagement with other new mothers may further support women in their attainment of healthy postpartum weight and lifestyle behaviours. PMID- 29028581 TI - Size-Controlled and Optical Properties of Platinum Nanoparticles by Gamma Radiolytic Synthesis. AB - Gamma radiolytic synthesis was used to produce size-controlled spherical platinum nanoparticles from an aqueous solution containing platinum tetraammine and polyvinyl pyrrolidone. The structural characterizations were performed using X ray diffraction, and transmission electron microscopy. The transmission electron microscopy was used to determine the average particle diameter, which decreased from 4.4nm at 80kGy to 2.8nm at 120kGy. The UV-visible absorption spectrum was measured and found that platinum nanoparticles exhibit two steady absorption maxima in UV regions due to plasmonic excitation of conduction electrons, which blue shifted to lower wavelengths with a decrease in particle size. We consider the conduction electrons of platinum nanoparticles to follow Thomas-Fermi-Dirac Weizsacker atomic model that they are not entirely free but weakly bounded to particles at lower-energy states {n = 5, l = 2 or 5d} and {n = 6, l = 0 or 6s}, which upon receiving UV photon energy the electrons make intra-band quantum excitations to higher-energy states allowed by the principles of quantum number that results the absorption maxima. We found an excellent agreement between the experimental and theoretical results, which suggest that the optical absorption of metal nanoparticles could be fundamentally described by a quantum mechanical interpretation, which could be more relevant to photo-catalysis and heterogeneous catalysis. PMID- 29028580 TI - Revision of the Genus Micromonas Manton et Parke (Chlorophyta, Mamiellophyceae), of the Type Species M. pusilla (Butcher) Manton & Parke and of the Species M. commoda van Baren, Bachy and Worden and Description of Two New Species Based on the Genetic and Phenotypic Characterization of Cultured Isolates. AB - The green picoalgal genus Micromonas is broadly distributed in estuaries, coastal marine habitats and open oceans, from the equator to the poles. Phylogenetic, ecological and genomic analyses of culture strains and natural populations have suggested that this cosmopolitan genus is composed of several cryptic species corresponding to genetic lineages. We performed a detailed analysis of variations in morphology, pigment content, and sequences of the nuclear-encoded small subunit rRNA gene and the second internal transcribed spacer (ITS2) from strains isolated worldwide. A new morphological feature of the genus, the presence of tip hairs at the extremity of the hair point, was discovered and subtle differences in hair point length were detected between clades. Clear non-homoplasious synapomorphies were identified in the small-subunit rRNA gene and ITS2 spacer sequences of five genetic lineages. These findings lead us to provide emended descriptions of the genus Micromonas, of the type species M. pusilla, and of the recently described species M. commoda, as well as to describe 2 new species, M. bravo and M. polaris. By clarifying the status of the genetic lineages identified within Micromonas, these formal descriptions will facilitate further interpretations of large-scale analyses investigating ecological trends in time and space for this widespread picoplankter. PMID- 29028582 TI - Internalized stigma and its impact in Indian outpatients with bipolar disorder. AB - Patients with many psychiatric disorders have considerable internalized stigma. The current study intended to examine the level and impact of internalized stigma in patients with bipolar affective disorder (BPAD). 60 patients with BPAD, 33 patients with schizophrenia and 30 patients with anxiety disorders were compared on Internalized Stigma of Mental Illness scale and The Stigma Scale. The patients with BPAD were assessed using Rosenberg Self-Esteem Scale (RSES), Participation scale (PS) and World Health Organization Quality Of Life - Brief Version - Hindi (WHOQOL-bref). Significant differences were found in all domains of self-stigma measures among the three groups. Using appropriate covariates, it was found that the differences were significant and independent of the effect of the covariates. In patients of BPAD, stigma and its domains were significantly correlated with the measures on monthly income, education, socio-occupational functioning, RSES, PS and WHOQOL-bref. Patients with BPAD experience substantial stigma, which was intermediate between that experienced by patients with schizophrenia (higher) and that experienced by patients with anxiety disorder (lower). Internalized stigma has significant impact on self-esteem, socio-occupational participation and functioning, and quality of life in patients with BPAD. Small sample size, sample of convenience, and cross-sectional design, limit the generalizability of the results. PMID- 29028583 TI - Influence of semantic consistency and perceptual features on visual attention during scene viewing in toddlers. AB - Conceptual representations of everyday scenes are built in interaction with visual environment and these representations guide our visual attention. Perceptual features and object-scene semantic consistency have been found to attract our attention during scene exploration. The present study examined how visual attention in 24-month-old toddlers is attracted by semantic violations and how perceptual features (i. e. saliency, centre distance, clutter and object size) and linguistic properties (i. e. object label frequency and label length) affect gaze distribution. We compared eye movements of 24-month-old toddlers and adults while exploring everyday scenes which either contained an inconsistent (e.g., soap on a breakfast table) or consistent (e.g., soap in a bathroom) object. Perceptual features such as saliency, centre distance and clutter of the scene affected looking times in the toddler group during the whole viewing time whereas looking times in adults were affected only by centre distance during the early viewing time. Adults looked longer to inconsistent than consistent objects either if the objects had a high or a low saliency. In contrast, toddlers presented semantic consistency effect only when objects were highly salient. Additionally, toddlers with lower vocabulary skills looked longer to inconsistent objects while toddlers with higher vocabulary skills look equally long to both consistent and inconsistent objects. Our results indicate that 24-month-old children use scene context to guide visual attention when exploring the visual environment. However, perceptual features have a stronger influence in eye movement guidance in toddlers than in adults. Our results also indicate that language skills influence cognitive but not perceptual guidance of eye movements during scene perception in toddlers. PMID- 29028584 TI - Diagnosis and treatment options for sequelae following radiation treatment of brain tumors. AB - Radiation serves an important role in the treatment of metastatic and primary brain tumors. Radiation carries a risk of post radiation treatment effects, such as pseudoprogression and radiation necrosis. The ability to differentiate between radiation necrosis, pseudoprogression, and tumor recurrence remains a diagnostic conundrum with varying treatment options. In this review, we will discuss the pathophysiology, diagnostic imaging modalities, and treatments of these post radiation treatment effects. We focus on the latest developments in magnetic resonance imaging (MRI) modalities including imaging biomarkers and the newest therapeutics such as VEGF inhibitors, Hyperbaric Oxygen Therapy, sensitized cytotoxic T cells, and Laser Interstitial Thermal Therapy (LITT). PMID- 29028585 TI - Seeing odors in color: Cross-modal associations in children and adults from two cultural environments. AB - We investigated the occurrence and underlying processes of odor-color associations in French and American 6- to 10-year-old children (n = 386) and adults (n = 137). Nine odorants were chosen according to their familiarity to either cultural group. Participants matched each odor with a color, gave hedonic and familiarity judgments, and identified each odor. By 6 years of age, children displayed culture-specific odor-color associations, but age differences were noted in the type of associations. Children and adults in both cultural groups shared common associations and formed associations that were unique to their environment, underscoring the importance of exposure learning in odor-color associations. PMID- 29028586 TI - Ameliorative effect of borneol, a natural bicyclic monoterpene against hyperglycemia, hyperlipidemia and oxidative stress in streptozotocin-induced diabetic Wistar rats. AB - Diabetes mellitus is a major public health problem worldwide. Oxidative stress plays a pivotal role in the pathogenesis of diabetes as it is one of the inevitable outcomes of the cellular process. The present study aims to investigate the putative antihyperglycemic, antihyperlipidemic and antioxidant efficacy of a monoterpene borneol, in comparison with glibenclamide, a standard drug for therapy of diabetes. Diabetes was induced by a single intraperitoneal injection of 40mg/kg body weight. The results of the present study showed a significant increase in the biochemical indices viz., fasting blood glucose concentration, glycated hemoglobin, urea, alanine aminotransferase, aspartate aminotransferase, malondialdehyde concentration, total cholesterol, triglycerides, low-density lipoprotein cholesterol, very low-density lipoprotein cholesterol and atherogenic index, with a significant decrease in body weight, plasma insulin, HOMA-beta-cell functioning index, glycogen, high-density lipoprotein cholesterol and antioxidant enzyme activities, viz., superoxide dismutase, catalase and reduced glutathione in diabetic rats when compared to controls. In addition, histology of the normal architecture of pancreas was affected in diabetic rats when compared to controls. The results for the first time reveal that oral administration of borneol for twenty eight days significantly attenuated the above mentioned alterations near to controls. Therefore, it is suggested that borneol could be a potential therapeutic antidiabetic molecule of biological relevance. PMID- 29028587 TI - Chemical constituents and medical benefits of Plantago major. AB - The medicinal benefits of Plantago major have been acknowledged around the world for hundreds of years. This plant contains a number of effective chemical constituents including flavonoids, alkaloids, terpenoids, phenolic acid derivatives, iridoid glycosides, fatty acids, polysaccharides and vitamins which contribute to its exerting specific therapeutic effects. Correspondingly, studies have found that Plantago major is effective as a wound healer, as well as an antiulcerative, antidiabetic, antidiarrhoeal, anti-inflammatory, antinociceptive, antibacterial, and antiviral agent. It also combats fatigue and cancer, is an antioxidant and a free radical scavenger. This paper provides a review of the medicinal benefits and chemical constituents of Plantago major published in journals from year 1937 to 2015 which are available from PubMed, ScienceDirect and Google Scholar. PMID- 29028588 TI - Formation of struvite urinary stones and approaches towards the inhibition-A review. AB - BACKGROUND: Struvite is one of the most common urinary/kidney stones, composed of magnesium ammonium phosphate (MgNHPO4.H2O). They are also termed as infection stones as these are associated with urinary tract infections. Numerous studies have been carried out to examine the growth and inhibition of struvite stones. OBJECTIVE: This review summarizes various reports on the factors responsible for inducing struvite stones in the kidney and gives a detailed account of studies on inhibition of growth of struvite crystals. RESULTS: The presence of urea splitting bacteria such as Proteus mirabilis and alkaline pH plays a crucial role in struvite formation. In vitro inhibition of struvite stones by various chemical agents were examined mainly in artificial urine whereas inhibition by herbal extracts was studied in vitro by gel diffusion technique. Herbal extracts of curcumin, Boerhaavia diffusa Linn, Rotula aquatica and many other plants, as well as some chemicals like pyrophosphate, acetohydroxamic acid, disodium EDTA and trisodium citrate, were reported to successfully inhibit struvite formation. CONCLUSION: The present review recapitulates various factors affecting the growth of struvite urinary stones and the inhibitory role of certain chemicals and herbal extracts. Most of the tested plants are edible hence can be easily consumed without any adverse effects whereas the side effects of chemicals are unknown due to lack of toxicity studies. Thus, the use of herbal extracts might serve as an alternate and safe therapy for prevention of struvite stones. PMID- 29028589 TI - TanshinoneIIA enhances the chemosensitivity of breast cancer cells to doxorubicin through down-regulating the expression of MDR-related ABC transporters. AB - As the first-line drug for breast cancer chemotherapy, doxorubicin (Dox) has strong cardiotoxicity. Meanwhile, prolonged Dox treatment of patients with breast cancer may result in resistance of breast cancer cells to Dox and an increased number of Dox-resistant breast cancer stem cells (BCSCs), thereby easily leading to breast cancer relapse. TanshinoneIIA (Tan IIA) has anti-tumor activity in addition to its cardiovascular protective effect. By preparing Dox resistant human breast cancer MCF-7 cells, here, we wanted to assess a new use of Tan IIA in enhancing the chemosensitivity of breast cancer cells to Dox and investigated its possible mechanisms. The results showed that Tan IIA could enhance the anti tumor effect of Dox on MCF-7 and MCF-7/dox cells in a dose-dependent manner, especially that of on MCF-7/dox cells. Even nontoxic dose of Tan IIA could also promote intracellular Dox accumulation of MCF-7 and MCF-7/dox cells through down regulating the expression of efflux ABC transporters including P-gp, BCRP and MRP1, which can effectively eliminated cancerous cells including BCSCs, thereby enhancing the chemosensitivity of breast cancer. Therefore, Tan IIA can be used as a new potential chemotherapeutic sensitizer for the combination treatment of breast cancer. PMID- 29028590 TI - Efficacy and tolerability of lisdexamfetamine as an antidepressant augmentation strategy: A meta-analysis of randomized controlled trials. AB - BACKGROUND: Psychostimulants have been used in the treatment of depression, with mixed results. This meta-analysis examines the efficacy and tolerability of the stimulant Lisdexamfetamine (LDX) as an add-on strategy in those with MDD who have failed to respond to an antidepressant. METHOD: Randomized control trials were identified and extracted from Pubmed; Web of Science; PsychINFO; and Cochrane Library. The efficacy of LDX was evaluated using Hedges' g and Odds Ratio, whereas Risk Difference was used to assess the safety and tolerability of LDX. RESULTS: Four studies met inclusion criteria. LDX did not demonstrate superiority in efficacy relative to placebo as indicated by a Hedges' g score of 0.126 (95% CI -0.040-0.291; p = 0.136) for mean change in Montgomery-Asberg Depression Rating Scale. Odds ratios of 1.206 (95% CI 0.745-1.954; p = 0.446) and 1.244 (95% CI 0.959-1.614; p = 0.1) were found for remission and response rates respectively. Risk differences of -0.1 (95% CI -0.155-(-0.045); p < 0.001) indicated a 10% increase chance of developing treatment-emergent adverse events (TEAE) in the LDX group. There was no significant difference in risk for developing serious or severe TEAE and discontinuing treatment due to TEAE. LIMITATIONS: The number of included studies was small and only one metric was available for analysis of antidepressant efficacy of LDX. CONCLUSIONS: LDX when used as antidepressant augmentation produced a small effect in improving depressive symptoms that approached trend-level significance and demonstrated comparable tolerability to placebo. Further studies are needed to determine the optimal clinical subset of depressive symptoms responsive to LDX augmentation. PMID- 29028591 TI - Posttraumatic stress disorder symptoms in parents and adolescents after the Wenchuan earthquake: A longitudinal actor-partner interdependence model. AB - BACKGROUND: Previous research has examined the association between parents' and children's posttraumatic stress disorder symptoms (PTSS) after a variety of traumatic events. However, longitudinal parent-child dyadic studies are scarce. METHODS: Independent self-reports were collected from parent-adolescent dyads (n = 688) after the 2008 Wenchuan earthquake. Adolescents (Mean = 15.22 years; 61.63% female) and one of their parents (Mean = 41.04 years; 58.14% female) each reported on their PTSS at 12 (T12m) and 18 months (T18m) following the earthquake. Longitudinal actor-partner interdependence models (APIMs) were used to examine PTSS within dyads. RESULTS: The prevalence rates of probable PTSD at T12m and T18m were 18.90% and 11.92% in adolescents; as well as 22.09% and 15.12% in parents, showing a significant decline over time. After adjusted for earthquake exposure, both maternal and paternal PTSS at T12m prospectively predicted adolescent girls' and boys' PTSS at T18m (mother to daughter: beta = 0.13; mother to son: beta = 0.17; father to daughter: beta = 0.17; father to son: beta = 0.33), while adolescent girls' and boys' PTSS at T12m only predicted maternal PTSS at T18m (daughter to mother: beta = 0.20; son to mother: beta = 0.20), but not paternal PTSS at T18m. LIMITATIONS: Self-reported measures other than clinical reviews were used to collect data. CONCLUSIONS: This study highlights the mutual impacts of adolescent and parental (especially maternal) PTSS after a disaster. Psychological prevention and intervention for adolescent disaster survivors should adopt a whole family approach. PMID- 29028592 TI - Elevation of plasma neutrophil gelatinase-associated lipocalin (NGAL) levels in schizophrenia patients. AB - BACKGROUND: Psychiatric diseases are usually accompanied by immune dysregulation and activation of the inflammatory response system. However, the characteristics of immunoinflammatory markers in psychiatric diseases are not well defined. METHODS: Seventy-three patients with psychiatric diseases were divided into four groups, including a schizophrenia group, an anxiety disorder group, a unipolar depression group, and a bipolar disorder group, according to the ICD-10 and DSM IV codes. Neutrophil gelatinase-associated lipocalin (NGAL) and associated classical immunoinflammatory markers including C-reactive protein (CRP), Th1/Th2 cytokines (IL-2, IL-4, IL-6, IL-10, TNF-alpha, and IFN-gamma), total leukocyte count (TLC), and neutrophilic granulocyte percentage (NEU%) were analysed; patients with physical diseases were excluded to avoid confounders. Fifteen healthy, age- and gender-matched individuals served as controls. RESULTS: Compared with the corresponding values in the control group, the level of CRP in each psychiatric disease group, the levels of IFN-gamma and NGAL in the schizophrenia group, and the NEU% in the depression group were significantly elevated (P < 0.05). Compared with the levels in the schizophrenia group, the levels of CRP in the bipolar disorder and depression groups, the level of IFN gamma in the bipolar disorder group, and the levels of NGAL in the anxiety disorder and depression groups were significantly decreased (P < 0.05). Compared with the depression group, the bipolar disorder group showed significant elevation the NGAL level. LIMITATION: The sample size was relatively small. CONCLUSIONS: Immunoinflammatory markers were elevated in patients with psychiatric diseases, especially schizophrenia. We are the first to report that the level of NGAL is significantly increased in schizophrenia patients. PMID- 29028593 TI - Genetic variations in the p11/tPA/BDNF pathway are associated with post stroke depression. AB - BACKGROUND: The effects of BDNF on post stroke depression (PSD) may be influenced by genetic variations in intracellular signal transduction pathways, such as the p11/tPA/BDNF pathway. In this study, we aimed to determine the association of polymorphisms in candidate genes of the gene transduction pathway with PSD, as well as the effects of the interactions between genes in our Chinese sample. METHODS: Two-hundred-fifty-four Chinese samples with acute ischaemic stroke included 122 PSD patients and 132 nonPSD patients. Sixty-five single nucleotide polymorphisms (SNPs) in six genes (p11, tPA, PAI-1, BDNF, TrkB and p75NTR) of the p11/tPA/BDNF pathway with minor allele frequencies > 5% were successfully genotyped from an initial series of 76 SNPs. The severity of depressive symptoms was assessed by the 17-item Hamilton Depression Rating scale score. Environmental factors were measured with the life events scale and social support rating scale for all patients. SNP and haplotype associations were analysed using gPLINK software. Gene-gene interactions were evaluated with generalized multifactor dimensionality reduction software. RESULTS: The results showed that TrkB polymorphisms (rs11140793AC genotype, rs7047042CG genotype, rs1221CT genotype, rs2277193TC genotype and rs2277192AG genotype) were significantly associated with PSD. Three haplotypes (AT, GG, and AAT) of TrkB were significantly associated with PSD. Seven haplotypes (GC, AG, ACG, CGC, GCT, ACGC and ACAT) of BDNF were significantly correlated with PSD. We identified significant gene-gene interactions between the p11 (rs11204922 SNP), tPA (rs8178895, rs2020918 SNPs) and BDNF (rs6265, rs2049046, rs16917271, rs727155 SNPs) genes in the PSD group. We also identified significant gene-gene interactions between the BDNF (rs2049046, rs7931247 SNPs) and TrkB (rs7816 SNP) genes with increased occurrence of PSD and sig gene-gene interactions between the BDNF gene (rs6265, rs56164415, rs2049046, rs4923468, rs2883187, rs16917271, rs1491850, rs727155, rs2049048 SNPs) and p75NTR gene (rs2072446, rs11466155) in the PSD group. CONCLUSION: These findings provides evidence that the TrkB gene, BDNF and TrkB haplotypes, and gene gene interactions between p11, tPA and BDNF are all associated with PSD, which suggests that genetic variations in the p11/tPA/BDNF pathway may play a central role in regulating the underlying mechanism of PSD. PMID- 29028594 TI - Observation of intra- and interspecific differences in the nest chemical profiles of social wasps (Hymenoptera: Polistinae) using infrared photoacoustic spectroscopy. AB - The aim of this study was to explore whether the nest chemical profile (NCP) can be used to determine intra- and interspecific differences in social wasps of the subfamily Polistinae. For this purpose, Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS) was used to directly analyze small pieces of nest as well as the gasters of females. An advantage of the methodology was that no sample preparation was required. FTIR-PAS combined with multivariate discriminant analyzes was used, to the best of our knowledge for the first time, to evaluate the NCPs of six species of polistine wasps, observing the influence of the nesting environment and investigating the relationships among the nest and female cuticular chemical profiles. The results revealed significant inter-species differences among the NCPs, as well as strong correlations with the environments in which the nests were located. The Mischocyttarus and Polistes species belong to the same tribe (Polistini) and therefore exhibited similar NCPs. These species were separated from the Polybia species in the NCP dendrogram, mainly because the Polybia belong to another tribe (Epiponini). Correlation was observed between the NCPs and the cuticular chemical profiles of females. The findings of the study demonstrated the importance of the NCP for differentiation of species and environments, and the utility of FTIR-PAS for identification of correlations between individuals and nests. The results confirmed the hypothesis that the NCP can be used as an additional tool for intra- and interspecific differentiation in social wasps of the subfamily Polistinae. PMID- 29028595 TI - "Loser" or "Popular"?: Neural response to social status words in adolescents with major depressive disorder. AB - Concerns about social status are ubiquitous during adolescence, with information about social status often conveyed in text formats. Depressed adolescents may show alterations in the functioning of neural systems supporting processing of social status information. We examined whether depressed youth exhibited altered neural activation to social status words in temporal and prefrontal cortical regions thought to be involved in social cognitive processing, and whether this response was associated with development. Forty-nine adolescents (ages 10-18; 35 female), including 20 with major depressive disorder and 29 controls, were scanned while identifying the valence of words that connoted positive and negative social status. Results indicated that depressed youth showed reduced late activation to social status (vs neutral) words in the superior temporal cortex (STC) and medial prefrontal cortex (MPFC); whereas healthy youth did not show any significant differences between word types. Depressed youth also showed reduced late activation in the dorsolateral prefrontal cortex and fusiform gyrus to negative (vs positive) social status words; whereas healthy youth showed the opposite pattern. Finally, age was positively associated with MPFC activation to social status words. Findings suggest that hypoactivation in the "social cognitive brain network" might be implicated in altered interpersonal functioning in adolescent depression. PMID- 29028597 TI - A continuum model for tension-compression asymmetry in skeletal muscle. AB - Experiments on passive skeletal muscle on different species show a strong asymmetry in the observed tension-compression mechanical behavior. This asymmetry shows that the tension modulus is two orders of magnitude higher than the compression modulus. Until now, traditional analytical constitutive models have been unable to capture that strong asymmetry in anisotropic solids using the same material parameters. In this work we present a model which is able to accurately capture five experimental tests in chicken pectoralis muscle, including the observed tension-compression asymmetry. However, aspects of the anisotropy of the tissue are not captured by the model. PMID- 29028596 TI - Synthesis, characterization and evaluation of a fluorinated resin monomer with low water sorption. AB - A fluorinated acrylate monomer (4-TF-PQEA) without BPA (bisphenol-A) structure was synthesized and mixed with triethylene glycol dimethacrylate (TEGDMA) to used as dental resin system in order to achieve lower water sorption and reduce human exposure to BPA derivatives. Double bond conversion (DC) was measured using Fourier transform infrared spectroscopy (FTIR). Water sorption (WS), water solution (WL) and depth of cure (DOC) were evaluated according to ISO 4049:2009. Water contact angle (CA) was measured using contact angle analyzer. Polymerization shrinkage (PS) was evaluated according to the Archimedes' principle and ISO 17304:2013. Flexural strength (FS) and flexural modulus (FM) were measured by three-point bending test with a universal testing machine according to ISO 4049:2009. Comprehensive strength (CS) and vickers microhardness (VM) were also investigated. Thermal stability test was measure by Thermogravimetric analyzer. Cytotoxicity of three resin systems was tested through MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromid) cytotoxicity method according to the ISO 10993-5:2009. Bisphenol-A glycidyl dimethacrylate (Bis-GMA)/ TEGDMA resin system was used as a control. The results show that 4-TF-PQEA/TEGDMA resin system had lower PS, lower WS and higher DC values than those of Bis-GMA/TEGDMA resin system except some mechanical properties, such as FS, FM and CS. Moreover, properties of other 4-TF-PQEA containing resin systems were also comparable with those of Bis-GMA/TEGDMA resin system. In particular, the overall performance of resin system consisted of 4-TF PQEA/Bis-GMA/TEGDMA is optimized when the mixture ratio is 30/40/30(wt/wt/wt). Therefore, the 4-TF-PQEA has potential to be used as resin monomer for dental resin composites to achieve lower water sorption. PMID- 29028598 TI - A particle swarm-based algorithm for optimization of multi-layered and graded dental ceramics. AB - The thermal residual stresses (TRSs) generated owing to the cooling down from the processing temperature in layered ceramic systems can lead to crack formation as well as influence the bending stress distribution and the strength of the structure. The purpose of this study is to minimize the thermal residual and bending stresses in dental ceramics to enhance their strength as well as to prevent the structure failure. Analytical parametric models are developed to evaluate thermal residual stresses in zirconia-porcelain multi-layered and graded discs and to simulate the piston-on-ring test. To identify optimal designs of zirconia-based dental restorations, a particle swarm optimizer is also developed. The thickness of each interlayer and compositional distribution are referred to as design variables. The effect of layers number constituting the interlayer between two based materials on the performance of graded prosthetic systems is also investigated. The developed methodology is validated against results available in literature and a finite element model constructed in the present study. Three different cases are considered to determine the optimal design of graded prosthesis based on minimizing (a) TRSs; (b) bending stresses; and (c) both TRS and bending stresses. It is demonstrated that each layer thickness and composition profile have important contributions into the resulting stress field and magnitude. PMID- 29028599 TI - Predicting the weathering of fuel and oil spills: A diffusion-limited evaporation model. AB - The majority of the evaporation models currently available in the literature for the prediction of oil spill weathering do not take into account diffusion-limited mass transport and the formation of a concentration gradient in the oil phase. The altered surface concentration of the spill caused by diffusion-limited transport leads to a slower evaporation rate compared to the predictions of diffusion-agnostic evaporation models. The model presented in this study incorporates a diffusive layer in the oil phase and predicts the diffusion limited evaporation rate. The information required is the composition of the fluid from gas chromatography or alternatively the distillation data. If the density or a single viscosity measurement is available the accuracy of the predictions is higher. Environmental conditions such as water temperature, air pressure and wind velocity are taken into account. The model was tested with synthetic mixtures, petroleum fuels and crude oils with initial viscosities ranging from 2 to 13,000 cSt. The tested temperatures varied from 0 degrees C to 23.4 degrees C and wind velocities from 0.3 to 3.8 m/s. The average absolute deviation (AAD) of the diffusion-limited model ranged between 1.62% and 24.87%. In comparison, the AAD of a diffusion-agnostic model ranged between 2.34% and 136.62% against the same tested fluids. PMID- 29028600 TI - Physico-chemical characterization of playground sand dust, inhalable and bioaccessible fractions. AB - Dust is a mixture of natural and anthropogenic particles originated from multiple sources, which can represent an hazard for human health. Playgrounds are a site of particularly concern, due to sand dust ingestion by toddlers and inhalation. In this study, 37 sands used in public playgrounds in the city of Barcelona were physico-chemically characterized also in relation to routine maintenance activities such as disinfection and sand renewal. The analyzed sands show a felsic mineralogy dominated by Na-feldspar, quartz, and, to a lesser extent, K feldspar, with minor amounts of clay minerals, carbonates and hematite. Particle fractions below 10, 2.5 and 1 MUm represent, on average, 0.65%, 0.17% and 0.07% of bulk volume, respectively, although, due to the human grinding, these initial fractions increased every year by a 18%, 5% and 2% respectively. Disinfection of sands effectively reduced only the NH4+ concentration, among inorganic species. The average metal content was anthropogenically enriched, with respect to the upper continental crust, only for Sb and As. Both elements show high spatial variation indicating local sources such as road traffic for Sb (contributing mostly to the total concentration), and industry for As (also contributing with highly bioaccessible Sb, Cu and Zn). A clear inverse relationship between total concentrations of some elements and their leachable (Sb) and bioaccessible (Sb and Cr) fractions is observed. The most bioaccessible elements were Ca > Ni > Cu > Sr > Cd > Pb, all above the 25% of the total concentration. Bioaccessibility was higher for the carbonate-bearing particles and for the anthropic emitted metals (>50% of Ba, Cu, K, Pb and Zn). PMID- 29028601 TI - Developing predictive models for toxicity of organic chemicals to green algae based on mode of action. AB - Organic chemicals in the aquatic ecosystem may inhibit algae growth and subsequently lead to the decline of primary productivity. Growth inhibition tests are required for ecotoxicological assessments for regulatory purposes. In silico study is playing an important role in replacing or reducing animal tests and decreasing experimental expense due to its efficiency. In this work, a series of theoretical models was developed for predicting algal growth inhibition (log EC50) after 72 h exposure to diverse chemicals. In total 348 organic compounds were classified into five modes of toxic action using the Verhaar Scheme. Each model was established by using molecular descriptors that characterize electronic and structural properties. The external validation and leave-one-out cross validation proved the statistical robustness of the derived models. Thus they can be used to predict log EC50 values of chemicals that lack authorized algal growth inhibition values (72 h). This work systematically studied algal growth inhibition according to toxic modes and the developed model suite covers all five toxic modes. The outcome of this research will promote toxic mechanism analysis and be made applicable to structural diversity. PMID- 29028602 TI - Toxicity of ZnO nanoparticles (NPs) to A549 cells and A549 epithelium in vitro: Interactions with dipalmitoyl phosphatidylcholine (DPPC). AB - Once inhaled, nanoparticles (NPs) will first interact with lung surfactant system, which may influence the colloidal aspects of NPs and consequently the toxic potential of NPs to pulmonary cells. In this study, we investigated the effects of dipalmitoyl phosphatidylcholine (DPPC), the major component in lung surfactant, on stability and toxicity of ZnO NPs. The presence of DPPC increased the UV-vis spectra, hydrodynamic size, Zeta potential and dissolution rate of ZnO NPs, which indicates that DPPC might interact with NPs and affect the colloidal stability of NPs. Exposure to ZnO NPs induced cytotoxicity associated with increased intracellular Zn ions but not superoxide in A549 cells. In A549 epithelium model, exposure to ZnO NPs induced cytotoxicity and decreased the release of interleukin 6 (IL-6) without a significant effect on epithelial permeability rate. Co-exposure of A549 cells or A549 epithelium model to DPPC and ZnO NPs induced a higher release of lactate dehydrogenase (LDH) and interleukin-6 (IL-6) compared with the exposure of ZnO NPs alone. We concluded that the presence of DPPC could influence the colloidal stability of ZnO NPs and increase the damage of NPs to membrane probably due to the increased positive surface charge. PMID- 29028603 TI - A surface-confined DNA assembly amplification strategy on DNA nanostructural scaffold for electrochemiluminescence biosensing. AB - A critical challenge in surface-based DNA assembly amplification is the reduced accessibility of DNA strands arranged on a heterogeneous surface compared to that in homogeneous solution. Here, a novel in situ surface-confined DNA assembly amplification electrochemiluminescence (ECL) biosensor based on DNA nanostructural scaffold was presented. In this design, a stem-loop structural DNA segment (Hairpin 1) was constructed on the vertex of DNA nanostructural scaffold as recognition probe. In the present of target DNA, the hairpin structure changed to rod-like through complementary hybridization with target DNA, resulting in the formation of Hairpin 1:target DNA. When the obtained Hairpin 1:target DNA met Hairpin 2 labeled with glucose oxidase (GOD), the DNA cyclic amplification was activated, releasing target DNA into homogeneous solution for the next recycling. Thus, the ECL signal of Ru(bpy)32+-TPrA system was quenched by H2O2, the product of GOD catalyzing glucose. As a result, this proposed method achieved a linear range response from 50 aM to 10 pM with lower detection limit of 20 aM. PMID- 29028604 TI - New zinc(II) N4 tetradentate Schiff base complex: A potential cytotoxic metallodrug and simple precursor for the preparation of ZnO nanoparticles. AB - A novel Schiff base Zn(II) complex using a tetradentate Schiff base ligand was synthesized and characterized. The results of cytotoxicity assay revealed that the prepared complex induced cytotoxicity in a breast cancer cell line. Thus, the binding of the Zn(II) complex to human serum albumin (HSA) was investigated using spectroscopic and molecular docking methods. The fluorescence data showed that the Zn(II) complex quenched protein fluorescence by a static quenching mechanism. The binding constant (Kb), number of binding sites (n), and thermodynamic parameters were calculated and showed that the Zn(II) complex binds to HSA through hydrogen bond and Vander Waals interactions with one binding site. Protein-ligand docking analysis confirmed that the Zn(II) complex binds to residues located in the subdomain IIA of HSA. This Zn(II) complex was used for the preparation of ZnO nanoparticles, and their photocatalytic activities were examined via photocatalytic degradation of ethidium bromide (EBr) in the absence of UV-vis irradiation. The results showed that these nanoparticles are promising materials for photocatalytic degradation. PMID- 29028605 TI - The construction and characterization of hybrid paclitaxel-in-micelle-in-liposome systems for enhanced oral drug delivery. AB - In this study, novel paclitaxel (PTX) loaded hybrid liposomes for oral PTX delivery were prepared through incorporating PTX loaded polyion complex micelles comprised of positively charged Pluronic F127-Polyethylenimine (PF127-PEI) copolymer and negatively charged sodium cholate (CA) into liposomes consisted of phospholipid molecules. According to the results, this kind of PTX-loaded hybrid liposomes showed improved PTX encapsulation efficiency, sustained PTX release, and enhanced PTX absorption in intestine. The mechanism for enhancing absorption was demonstrated in connection with inhibition of the efflux mediated by multidrug resistance protein, intestinal P-gp. In pharmacokinetic study, the absolute oral bioavailability of PTX loaded in hybrid liposomes had reached to 37.91%. All of these results demonstrated that the application of this novel PTX loaded hybrid liposomes is a strategy with great potential for highly effective oral PTX delivery. PMID- 29028606 TI - Inflammatory and biocompatibility evaluation of antimicrobial peptide GL13K immobilized onto titanium by silanization. AB - The inflammatory reaction around the implant after implant placement is important not only for osseointegration but also for long-term implant survivals. In our study, GL13K, an antimicrobial peptide, was immobilized onto titanium surfaces to improve its anti-inflammatory properties. The method of silanization was used to immobilize the GL13K, which was confirmed by X-ray photoelectron spectroscopy, scanning electron microscopy, atomic force microscopy, water contact angle measurement. DAPI fluorescence staining and Cell Counting Kit-8 (CCK-8) were used to measure the cell attachment and cell viability of the RAW264.7, which indicated a good cytocompatibility. Cellular morphology of RAW264.7 on modified surfaces showed less cell pseudopod. ELISA and qRT-PCR were performed to measure the inflammatory activity of the modified titanium surfaces. The secretion levels of pro-inflammatory cytokines interleukin (IL)-1beta, tumor necrosis factor-alpha (TNF-alpha) and inducible nitric oxide synthase (iNOS) were downregulated at 12h, 24h, and 48h, while the anti-inflammatory cytokines IL-10 and arginase were upregulated at 12h, 24h, and 48h. All results indicate that the GL13K-coated titanium surfaces make the inflammatory process towards a less pro-inflammatory, which may promote the process of osseointegration. PMID- 29028607 TI - pH-Induced interfacial properties of Chaplin E from Streptomyces coelicolor. AB - Chaplin E, or Chp E, is a surface active peptide secreted by Streptomyces coelicolor that adopts different structures depending on solution pH but the effect of these structures on the interfacial properties of Chp E is not known. In experiments paired with simulations, Chp E was found to display pH-dependent interfacial assembly and surface activity. At pH 3.0, Chp E formed an ordered non amyloidal interfacial film with high surface activity; while at pH 10.0, Chp E self-assembled into a heterogeneous film containing randomly arranged fibrils at the interface that was less surface active compared to the film formed at pH 3.0. In simulations at pH 10.0, Chp E molecules showed a higher propensity for dimerization within the solution phase, lower rate of adsorption to the interface and tighter inter-molecular associations at the interface, consistent with the lower surface activity and smaller interfacial area coverage per molecule measured at this pH compared to at pH 3.0. A model is presented for the role of Chp E in the developmental differentiation of Streptomyces coelicolor, where Chp E contributes to changes in surface tension at low pH and the formation of fibrils on the surface of aerial hyphae at high pH. Our data also suggest Chp E could be a promising surface active agent with functional activity that can be controlled by pH. PMID- 29028608 TI - Establishment of nerve growth factor gradients on aligned chitosan-polylactide /alginate fibers for neural tissue engineering applications. AB - Nerve conduits containing aligned fibrous fillers with gradiently distributed signal molecules are essential for long-gap nerve repair. This study was to develop an approach for establishing nerve growth factor (NGF) gradients onto the aligned chitosan-polylactide (CH-PLA) fibers. CH-PLA containing 37wt% of PLA was spun into fibers using a wet-spinning technique. CH-PLA fibers showed much higher wet-state tensile strength, enhanced degradation tolerance and significantly lower swelling degree in comparison to chitosan fibers. The CH-PLA fibers with diameters from 40 to 60MUm were selected and segmentally coated in bundles using NGF-contained alginate solutions to establish NGF gradients lengthwise along fibers. The diameter of resulting NGF-loaded CH-PLA/alginate fibers was well controlled within a range between 60 and 120MUm. Calcium ion crosslinked alginate coating layers on fibers showed abilities to administer the sustainable NGF release in a gradient distribution manner for at least 5 weeks. NGF-induced neurite outgrowth of PC12 cells confirmed that bioactivity of NGF released from fibers was well retained. PMID- 29028609 TI - Daunorubicin and doxorubicin molecular interplay with 2D membrane models. AB - The anthracyclines daunorubicin and doxorubicin are widely used antineoplastic agents due to their therapeutic activity against a broad variety of human cancers. Although, the classical model to explain anthracyclines' cytotoxicity has been based in the direct interference with nucleic acid function, evidence suggests that the plasma membrane is also involved in the drug's mechanism of action. In this work, the interaction of these drugs with two-dimensional membrane models were studied in order to gain further insights at the molecular level regarding anthracyclines membrane interactions. For that purpose, Langmuir monolayers composed of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC), sphingomyelin (SM) and cholesterol (Chol) were used, since these are the most common lipids found in biological membranes. Several biophysical techniques were employed: surface pressure (pi) - area (A) isotherms measurements were used to investigate the adsorption and penetration of drugs, polarization-modulation infrared reflection-absorption spectroscopy (PM-IRRAS) to acquire structural information and Brewster angle microscopy (BAM) to record images of the monolayers on the micrometer scale. The interactions of anthracyclines were assessed by alterations in the monolayers' shape, characteristic parameters (Cs-1 values and area per lipid molecule at 30mN.m-1 and under maximum packing conditions) and morphology of each 2D model studied. The presence of the drugs in the interface led to the production of less ordered monolayers, as evidenced by the decrease in the compressibility modulus. In addition, the drugs' effect on the membrane organization is related with their chemical structure and depends on the membranes phase. For lower surface pressures, both electrostatic and hydrophobic interactions led to significant modifications in the monolayer order. With further compression, the impact of such interactions is reduced, resulting in the squeezing-out of some drug molecules from the interface. Furthermore, BAM images showed a clear anticancer drug interplay with the lipid monolayer by changes in the domains shape and appearance of bright dots, which are located in the frontier between the condensed and expanded lipid phases. PMID- 29028610 TI - Systematic review and meta-analysis of dropout rates in individual psychotherapy for generalized anxiety disorder. AB - BACKGROUND: Despite being a relatively prevalent and debilitating disorder, Generalized Anxiety Disorder (GAD) is the second least studied anxiety disorder and among the most difficult to treat. Dropout from psychotherapy is concerning as it is associated with poorer outcomes, leads to service inefficiencies and can disproportionately affect disadvantaged populations. No study to date has calculated a weighted mean dropout rate for GAD and explored associated correlates. METHODS: A systematic review was conducted using PsycINFO, Medline and Embase databases, identifying studies investigating individual psychotherapies for adults with GAD. Forty-five studies, involving 2224 participants, were identified for meta-analysis. RESULTS: The weighted mean dropout rate was 16.99% (95% confidence interval 14.42%-19.91%). The Q-statistic indicated significant heterogeneity among studies. Moderator analysis and meta regressions indicated no statistically significant effect of client age, sex, symptom severity, comorbidity, treatment type, study type (randomized trial or not), study quality, number of sessions or therapist experience. CONCLUSIONS: In research investigating psychotherapy for GAD, approximately one in six clients can be expected to drop out of treatment. Dropout rate was not significantly moderated by the client, therapist or treatment variables investigated. Future research should specify the definition of dropout, reasons for dropout and associated correlates to assist the field's progression. PMID- 29028611 TI - Automatic imitation of pro- and antisocial gestures: Is implicit social behavior censored? AB - According to social reward theories, automatic imitation can be understood as a means to obtain positive social consequences. In line with this view, it has been shown that automatic imitation is modulated by contextual variables that constrain the positive outcomes of imitation. However, this work has largely neglected that many gestures have an inherent pro- or antisocial meaning. As a result of their meaning, antisocial gestures are considered taboo and should not be used in public. In three experiments, we show that automatic imitation of symbolic gestures is modulated by the social intent of these gestures. Experiment 1 (N=37) revealed reduced automatic imitation of antisocial compared with prosocial gestures. Experiment 2 (N=118) and Experiment 3 (N=118) used a social priming procedure to show that this effect was stronger in a prosocial context than in an antisocial context. These findings were supported in a within-study meta-analysis using both frequentist and Bayesian statistics. Together, our results indicate that automatic imitation is regulated by internalized social norms that act as a stop signal when inappropriate actions are triggered. PMID- 29028612 TI - Where do spontaneous first impressions of faces come from? AB - Humans spontaneously attribute a wide range of traits to strangers based solely on their facial features. These first impressions are known to exert striking effects on our choices and behaviours. In this paper, we provide a theoretical account of the origins of these spontaneous trait inferences. We describe a novel framework ('Trait Inference Mapping') in which trait inferences are products of mappings between locations in 'face space' and 'trait space'. These mappings are acquired during ontogeny and allow excitation of face representations to propagate automatically to associated trait representations. This conceptualization provides a framework within which the relative contribution of ontogenetic experience and genetic inheritance can be considered. Contrary to many existing ideas about the origins of trait inferences, we propose only a limited role for innate mechanisms and natural selection. Instead, our model explains inter-observer consistency by appealing to cultural learning and physiological responses that facilitate or 'canalise' particular face-trait mappings. Our TIM framework has both theoretical and substantive implications, and can be extended to trait inferences from non-facial cues to provide a unified account of first impressions. PMID- 29028613 TI - Divergent biology of facultative heavy metal plants. AB - Among heavy metal plants (the metallophytes), facultative species can live both in soils contaminated by an excess of heavy metals and in non-affected sites. In contrast, obligate metallophytes are restricted to polluted areas. Metallophytes offer a fascinating biology, due to the fact that species have developed different strategies to cope with the adverse conditions of heavy metal soils. The literature distinguishes between hyperaccumulating, accumulating, tolerant and excluding metallophytes, but the borderline between these categories is blurred. Due to the fact that heavy metal soils are dry, nutrient limited and are not uniform but have a patchy distribution in many instances, drought-tolerant or low nutrient demanding species are often regarded as metallophytes in the literature. In only a few cases, the concentrations of heavy metals in soils are so toxic that only a few specifically adapted plants, the genuine metallophytes, can cope with these adverse soil conditions. Current molecular biological studies focus on the genetically amenable and hyperaccumulating Arabidopsis halleri and Noccaea (Thlaspi) caerulescens of the Brassicaceae. Armeria maritima ssp. halleri utilizes glands for the excretion of heavy metals and is, therefore, a heavy metal excluder. The two endemic zinc violets of Western Europe, Viola lutea ssp. calaminaria of the Aachen-Liege area and Viola lutea ssp. westfalica of the Pb-Cu ditch of Blankenrode, Eastern Westphalia, as well as Viola tricolor ecotypes of Eastern Europe, keep their cells free of excess heavy metals by arbuscular mycorrhizal fungi which bind heavy metals. The Caryophyllaceae, Silene vulgaris f. humilis and Minuartia verna, apparently discard leaves when overloaded with heavy metals. All Central European metallophytes have close relatives that grow in areas outside of heavy metal soils, mainly in the Alps, and have, therefore, been considered as relicts of the glacial epoch in the past. However, the current literature favours the idea that hyperaccumulation of heavy metals serves plants as deterrent against attack by feeding animals (termed elemental defense hypothesis). The capability to hyperaccumulate heavy metals in A. halleri and N. caerulescens is achieved by duplications and alterations of the cis-regulatory properties of genes coding for heavy metal transporting/excreting proteins. Several metallophytes have developed ecotypes with a varying content of such heavy metal transporters as an adaption to the specific toxicity of a heavy metal site. PMID- 29028614 TI - Simultaneous determination of five Alternaria toxins in cereals using QuEChERS based methodology. AB - Two analytical approaches, including ultra-high performance liquid chromatograph linked with photo-diode array/fluorescence detector, and ultra-high performance liquid chromatography-tandem mass spectrometry, have been proposed for simultaneous determination of five Alternaria toxins in cereals, which both based on QuEChERS strategy. After QuEChERS extraction and salting out, the collected supernatant was subjected to an extra dispersive liquid-liquid microextraction step prior to quantitative analysis. Response surface methodology based on central composite design was employed to optimize the micro-extraction conditions. During photo-diode array/fluorescence detector method validation, satisfactory analytical characteristics, in terms of selectivity, recovery (72.7% 109.1%), precision (inter-day RSDs <9.6%), sensitivity (limits of quantification ranged from 2.1MUgkg-1 to 120.0MUgkg-1) and linearity (R2 all higher than 0.9984), were achieved. Mass spectrometry method was employed as a certified method for accuracy. The two methodologies were successfully applied to 71 samples including three different matrices and the quantitative results were compared. As the result of non-parametric test shown, the established two analytical approach exhibited comparable quantitative accuracy to each other. PMID- 29028615 TI - Determination of quinolones in wastewater by porous beta-cyclodextrin polymer based solid-phase extraction coupled with HPLC. AB - In this research, a novel insoluble sorbent based on cyclodextrin and rigid aromatic groups tetrafluoroacetonitrile was designed for dispersive insoluble solid-phase extraction (DSPE). Due to its high adsorption capacity, this obtained polymer was applied to separation and concentration of trace quinolones in wastewater before HPLC determination. Various parameters influencing the extraction performance were studied and optimized. A DSPE approach coupled with high performance liquid chromatography was developed for the determination of four quinolones in wastewater samples. The limit of quantitation of fleroxacin, ciprofloxacin, gatifloxacin, norfloxacin were 2.67, 3.17, 4.75, 5.50ngmL-1, respectively. The recoveries of four quinolones range from 96.43 to 103.3% with relative standard deviations less than 4.5%. These results demonstrated that the proposed approach based on CDP was efficient, low-cost for extraction of quinolones from wastewater. PMID- 29028616 TI - Simultaneous determination of a novel c-Met/AXL dual-target small-molecule inhibitor BPI-9016M and its metabolites in human plasma by liquid chromatography tandem mass spectrometry: Application in a pharmacokinetic study in Chinese advanced solid tumor patients. AB - BPI-9016M is a novel dual-target small-molecule inhibitor targeting c-Met and AXL, which was developed by Betta Pharmaceuticals Co., Ltd (Hangzhou, China). It has great potential in the treatment of advanced cancer. A high throughput quantitation method, based on liquid chromatography-tandem mass spectrometry, was developed and validated for the simultaneous determination of BPI-9016M and its main metabolite, M1 and M2-2, in human plasma with a sample preparation method of precipitation of protein. Liquid chromatographic separation was performed with a gradient elution of formic acid-10mM ammonium acetate aqueous solution (1:1000, v/v) and acetonitrile at a flow rate of 0.4mL/min within 2.2min. A Waters ACQUITY UPLC BEH C18 column (1.7MUm, 2.1*50mm) was chosen, of which the temperature was set to be 40 degrees C. Mass spectrometric detection, which were achieved in positive mode, were performed by multiple reaction monitoring with SCIEX API 5500 Qtrap equipped with an ESI ion source. This method showed good linearity, accuracy and precision in the range of 0.4-200ng/mL for BPI-9016M and 0.8 800ng/mL for M1 and M2-2, with high recovery and slight matrix effect for all analytes. And under the conditions same as stability assessments in method validation, the three analytes stayed stable during the entire destiny of a clinical sample from the collection of whole blood to the analysis of plasma by this method. The validated method was successfully applied to a first-in-human, dose-escalation phase I clinical trial in Chinese advanced solid tumor patients for the pharmacokinetic research of BPI-9016M tablet after oral administration. The concentration-time curves of BPI-9016M, M1, M2-2 were detailly captured with good veracity. And according to the results of hemolysis assessment, plasma concentrations of analytes in hemolyzed plasma samples could be reported normally without label. PMID- 29028617 TI - A plasma lipidomics strategy reveals perturbed lipid metabolic pathways and potential lipid biomarkers of human colorectal cancer. AB - To explore underlying molecular mechanisms and identify novel lipid biomarkers promising for colorectal cancer (CRC) diagnosis, a continuous-flow two dimensional liquid chromatography-quadrupole time-of-flight mass spectrometry (2D LC-QToF/MS) method was employed to comprehensively measure lipid species in human plasma of CRC patients and healthy controls. With a total of 427 annotated lipid species, we identified 64 lipid species with corrected p value less than 0.05 and fold change more than 1.5. These significantly altered lipid species were mainly involved in glycerolipids and glycerophospholipids metabolism and sphingolipids metabolism. After the diagnosis ability evaluation based on the receiver operating characteristic (ROC) curve, phosphatidylglycerol (34:0), sphingomyelin (42:2), ceramide (44:5), lysophosphatidylcholine (18:3), lysophosphatidylcholine (18:2), phosphatidylethanolamine (O-36:3), phosphatidylethanolamine (O-38:3) and sphingomyelin (38:8) were finally proposed as the potential biomarkers with the area under the curve (AUC) more than 0.900. These results suggest that this 2D LC QToF/MS-based lipidomics profiling has great potential as a noninvasive diagnostic method in detecting CRC and hopefully provide new clues to understand its underlying mechanism. PMID- 29028618 TI - One single standard substance for the simultaneous determination of 17 triterpenes in Ganoderma lingzhi and its related species using high-performance liquid chromatography. AB - Due to the difficulty and high cost for the preparation of triterpenes, one single standard for the simultaneous determination of multi-components (SSDMC) with high performance liquid chromatography (HPLC) is an advanced solution for multi-component analysis. Experiments were carried out to investigate the feasibility of SSDMC for the analysis of Ganoderma triterpenes, with external standard method (ESM) compared, and the samples of Ganoderma were classified by the content of Ganoderma triterpenes. The analysis was performed by using a Fortis Speed Core-C18 column (150mm*4.6mm I.D., 2.6MUm) at gradient elution of 0.01% glacial acetic acid-water (V/V) and acetonitrile with diode array detection (252nm), at a flow rate of 1mL/min. The results showed that all calibration curves had good linearity (r2>0.9999) within test ranges. The LOD and LOQ were lower than 2.52ng and 6.43ng, respectively. The RSD for intra-day and inter-day of the seventeen analytes were less than 3.12% at three levels, and the recoveries were 91.4-103.0%. The contents of other 16 triterpenes were determined with ganoderic acid A by SSDMC, which showed that there were few differences compared with the results obtained by ESM. Moreover, the classification of 25 different species and strains of Ganoderma by using the content of triterpenes intuitively reflected the distinction among Ganoderma. In summary, the developed method could be readily utilized as a method of quality evaluation for Ganoderma triterpenes. PMID- 29028619 TI - Development of a high-performance liquid chromatography method for the determination of florfenicol in animal feedstuffs. AB - An effective thin layer chromatography (TLC) purification procedure coupled to high-performance liquid chromatography (HPLC) method was developed for the determination of florfenicol (FF) in pig, chicken and fish feedstuffs. The feedstuff samples were extracted with ethyl acetate, defatted with n-hexane saturated with acetonitrile, and further purified by TLC. The chromatographic separation was performed on a Waters Symmetry C18 column using an isocratic procedure with acetonitrile-water (35:65, v/v) at 0.6mL/min. The ultraviolet (UV) detector was set at a wavelength of 225nm. The FF concentrations in feedstuff samples were quantified using a standard curve. Good linear correlations (y=159075x-15054, r>0.9999) were achieved within the concentration range of 0.05 200MUg/mL. The recoveries of FF spiked at levels of 1, 100 and 1000MUg/g ranged from 80.6% to 105.3% with the intra-day and inter-day relative standard deviation (RSD) less than 9.3%. The limit of detection (LOD) and limit of quantitation (LOQ) were 0.02 and 0.06mg/kg for pig feedstuffs, 0.02 and 0.07mg/kg for chicken feedstuffs, and 0.02 and 0.05mg/kg for fish feedstuffs, respectively. This reliable, simple and cost-effective method could be applied to the routine monitoring of FF in animal feedstuffs. PMID- 29028620 TI - Carbon emission analysis and evaluation of industrial departments in China: An improved environmental DEA cross model based on information entropy. AB - Environmental protection and carbon emission reduction play a crucial role in the sustainable development procedure. However, the environmental efficiency analysis and evaluation based on the traditional data envelopment analysis (DEA) cross model is subjective and inaccurate, because all elements in a column or a row of the cross evaluation matrix (CEM) in the traditional DEA cross model are given the same weight. Therefore, this paper proposes an improved environmental DEA cross model based on the information entropy to analyze and evaluate the carbon emission of industrial departments in China. The information entropy is applied to build the entropy distance based on the turbulence of the whole system, and calculate the weights in the CEM of the environmental DEA cross model in a dynamic way. The theoretical results show that the new weight constructed based on the information entropy is unique and optimal globally by using the Monte Carlo simulation. Finally, compared with the traditional environmental DEA and DEA cross model, the improved environmental DEA cross model has a better efficiency discrimination ability based on the data of industrial departments in China. Moreover, the proposed model can obtain the potential of carbon emission reduction of industrial departments to improve the energy efficiency. PMID- 29028621 TI - Combining valgus knee brace and lateral foot wedges reduces external forces and moments in osteoarthritis patients. AB - Osteoarthritis progression can be related to the external knee adduction and flexion moments during walking. Lateral foot wedges and knee braces have been used as treatment for osteoarthritis, but little is known about their influence on knee joint moments generated in the sagittal and frontal planes. Therefore, the aim of the present study was determine the effects of the isolated and combined use of valgus knee brace and lateral wedge foot orthotic on peak forces and moments during gait in knee osteoarthritis patients. Twenty four males (age: 62.1+/-2.0years) with varus alignment, symptomatic medial compartment knee osteoarthritis participated in this study. Subjects walked over ground at preferred speed in four conditions: (1) no assistive device (control); (2) using lateral wedges, (3) using knee braces, and (4) using both lateral wedges and knee braces. Ground reaction forces (GRF) and moments, as well as lower limb kinematics were recorded. Peak GRF, vertical loading rate, free moment, external knee adduction and flexion moments were compared across conditions. The concurrent use of lateral wedge and knee brace reduced the first peak GRF in the vertical (6%, p=0.002), anterior-posterior (30%, p=0.028) and medial-lateral directions (44%, p=0.029). Moreover, the use of these devices reduced the peak external knee adduction moment (25%, p=0.019), but not the external flexion moment and free moment (p>0.05). The combined use of lateral wedges and knee braces can reduce medial-lateral knee joint loading, but despite reduced peak forces in the sagittal plane, these device do not reduce joint moments. PMID- 29028623 TI - Constraints specific influences of vision, touch and surface compliance in postural dynamics. AB - Studies that have manipulated vision and touch in posture usually emphasize the prescriptive closed-loop function of the information to reduce the amount of postural motion. In contrast, we examine here the hypothesis that the standard sensory manipulations to maintain quiet stance also change in specific ways the constraints on the task goal and the emergent movement organization. Twelve participants were instructed to maintain quiet postural stance under three sensory factors: surface compliance (foam/no foam), visual information (open/closed eyes) and tactile information (finger touch/no finger touch). The standard deviation of center of pressure (COP) motion decreased with the presence of vision, touch and rigid surface. The correlation dimension showed that the manipulation of touch and vision produced different attractor dynamics that also interacted with surface compliance. Vision decreased the correlation dimension in the foam surface while the touch manipulation increased dimension in the rigid surface. The sensory information manipulations changed the qualitative properties of the attractor dynamics as well as the quantitative properties of the amount of postural motion providing evidence for the specific nature of the postural organization across information conditions. PMID- 29028622 TI - Virtual reality balance training for elderly: Similar skiing games elicit different challenges in balance training. AB - BACKGROUND: Virtual Reality (VR) balance training may have advantages over regular exercise training in older adults. However, results so far are conflicting potentially due to the lack of challenge imposed by the movements in those games. Therefore, the aim of this study was to assess to which extent two similar skiing games challenge balance, as reflected in center of mass (COM) movements relative to their Functional Limits of Stability (FLOS). METHODS: Thirty young and elderly participants performed two skiing games, one on the Wii Balance board (Wiiski), which uses a force plate, and one with the Kinect sensor (Kinski), which performs motion tracking. During gameplay, kinematics were captured using seven opto-electronical cameras. FLOS were obtained for eight directions. The influence of games and trials on COM displacement in each of the eight directions, and maximal COM speed, were tested with Generalized Estimated Equations. RESULTS: In all directions with anterior and medio-lateral, but not with a posterior component, subjects showed significantly larger maximal %FLOS displacements during the Kinski game than during the Wiiski game. Furthermore, maximal COM displacement, and COM speed in Kinski remained similar or increased over trials, whereas for Wiiski it decreased. CONCLUSIONS: Our results show the importance of assessing the movement challenge in games used for balance training. Similar games impose different challenges, with the control sensors and their gain settings playing an important role. Furthermore, adaptations led to a decrease in challenge in Wiiski, which might limit the effectiveness of the game as a balance-training tool. PMID- 29028624 TI - Foot pressure pattern, hindfoot deformities, and their associations with foot pain in individuals with advanced medial knee osteoarthritis. AB - This survey clarified foot pressure patterns and hindfoot deformities in individuals with advanced knee osteoarthritis (OA) and analyzed their associations with foot pain. Sixty-four individuals with unilateral knee OA who underwent total knee arthroplasty (TKA) were divided into the following groups: no foot pain (n=26; men:women, 4:22; mean age, 73.7 years), foot pain resolved after TKA (12; 2:10; 75.8), and foot pain remaining after TKA (26; 4:22; 74.7). Elderly individuals without pain or deformity in either knee (54; 10:44; 74.3) were controls. Navicular height ratio of the medial longitudinal arch, leg-heel angle, and partial foot pressure as the percentage of body weight (%PFP) were calculated.%PFPs of the medial and lateral heel regions before TKA were significantly lower for the no foot pain group than for controls. One year after TKA, %PFP improved significantly. In the foot pain resolved group, before TKA, the leg-heel angle was significantly higher, and%PFPs of the medial and lateral heel regions and navicular height ratio before TKA were significantly lower than those of controls. One year after TKA, all parameters improved significantly. In the foot pain remaining group, similar abnormalities were observed before TKA; however, significant improvement was only observed for%PFP of the medial heel region 1year after TKA. More than half of the patients with advanced knee OA had foot pain. This improved in approximately one-third, 1year after TKA. Hindfoot deformities are probably associated with foot pain in individuals with advanced knee OA. PMID- 29028625 TI - Difference in kick motion of adolescent soccer players in presence and absence of low back pain. AB - Many adolescent soccer players experience low back pain (LBP). However, there are no reports studying the kick motion of adolescent soccer players experiencing LBP. This study aimed to clarify the kick motion of adolescent soccer players in the presence and absence of LBP. We recruited 42 adolescent soccer players and divided them into two groups according to the presence of LBP (LBP group, n=22) and absence of LBP (NBP group, n=20). We measured real-time kick motion using a three-dimensional motion analysis system. We placed 65 spherical markers on each anatomical landmark and calculated the angle of the lumbar spine, center of mass (COM) of the whole body, and displacement of the support foot. We used an unpaired t-test to compare the data between the groups. Compared with the NBP group, the LBP group showed a lateral shift in COM, which increased the duration of kick motion. The presence of LBP affected the posterior positioning of the support foot and restricted the player's lumbar spine from bending laterally. A lateral shift in COM and larger rotation of the lumbar spine could stress the lumbar spine during kick motion. Therefore, coaches and athletic trainers should pay attention to soccer players' lumbar spine rotation and the COM shift during kick motion. This would be important for preventing LBP in adolescent soccer players. PMID- 29028626 TI - Accuracy of three methods in gait event detection during overground running. AB - Inertial measurement units (IMUs) have been extensively used to detect gait events. Various methods have been proposed for detecting initial contact (IC) and toe-off (TO) using IMUs affixed at various anatomical locations. However, the accuracy of such methods has yet to be compared. This study evaluated the accuracy of three common methods used for detecting gait events during jogging and running: (1) S-method, in which IC is identified as the instant of peak foot resultant acceleration and TO is identified when the acceleration exceeds a threshold of 2g in the region of interest; (2) M-method, in which IC and TO are defined as the minimum before the positive peak shank vertical acceleration and the minimum in the region of interest, respectively; and (3) L-method, in which IC is indicated by the instant of peak pelvis anteroposterior acceleration and TO is identified by the maximum in the region of interest. The performance of the IMU-based methods in detecting IC and TO and estimating stance time (ST) were tested on 11 participants at jogging and running speeds against a reference provided by a force-platform method. The S-method was the most accurate for IC detection (overall mean absolute difference (MAD): 4.7+/-4.1ms). The M-method was the most accurate for TO detection (overall MAD: 7.0+/-3.5ms). A combination of M and S-methods, called the MS-method, was the most accurate for ST estimation (overall MAD: 9.0+/-3.9ms). Thus, the MS-method is recommended for ST estimation; however, this method requires four IMUs for bilateral estimation. PMID- 29028627 TI - Local dynamic stability during treadmill walking can detect children with developmental coordination disorder. AB - OBJECTIVE: Developmental coordination disorder (DCD) is an innate impairment of motor coordination that affects basic locomotion and balance. This study investigated local dynamic stability of trunk accelerations during treadmill walking as an objective evaluation of gait stability and the sensitivity and specificity of this measure to discriminate children with DCD from typically developing children. METHOD: Eight children with DCD and ten age- and gender matched typically developing children (TD) walked four minutes on a treadmill. Trunk accelerations in vertical, medio-lateral and anterior-posterior directions were recorded with a sternum mounted accelerometer at 256Hz. Short term local dynamic stability (lambdas), root mean square (RMS) and relative root mean square (RMSR) were calculated from measures of orthogonal trunk accelerations. Receiver operating characteristic curve (ROC) analysis was performed to discriminate between groups based on short term local dynamic stability. RESULTS: lambdas was significantly greater in children with DCD in the main movement direction (AP) (DCD: 1.69+/-0.17 lambdas; TD:1.41+/-0.17 lambdas; p=0.005), indicating reduced local dynamic stability. RMS and RMSR accelerations showed no difference between children with DCD and TD children in any direction. The ROC analysis of lambdas in separate directions and in two dimensions showed an excellent accuracy of discriminating between children with DCD and TD children. Anterior-posterior direction in combination with medio-lateral or vertical showed best performance with an area under the curve (AUC) of 0.91. CONCLUSION: We have shown that children with developmental coordination disorder have general reduced local dynamic stability and that the short term Lyapunov exponent has good power of discrimination between DCD and TD. PMID- 29028628 TI - Role of PDGF-BB in proliferation, differentiation and maintaining stem cell properties of PDL cells in vitro. AB - OBJECTIVE: Platelet-derived growth factor-BB (PDGF-BB) is one of the most abundant growth factors in platelet derived products and has been shown to stimulate regeneration after tissue injury. There is a population of mesenchymal stem cells (MSC) in human periodontal ligament (PDL) which can contribute to tissue regeneration under appropriate conditions. DESIGN: PDL cells were isolated and characterized using stem cell and differentiation markers via immunofluorescence and flow cytometry and then cultured in vitro and treated with different concentrations of PDGF-BB. The effect of PDGF-BB on cell proliferation, stem cell and differentiation markers expression, soluble collagen production, lysyl oxidase (LOX) activity, alkaline phosphatase (ALP) activity and calcium nodules formation was assessed. RESULTS: PDGF-BB stimulated the proliferation of cells with the maximum effect at 50ng/mL. The growth factor increased the expression of stem cell markers and SPARC; Col1a2 expression was decreased, whereas the expression of Col3a1 remain unchanged. Soluble collagen production, ALP activity and calcium nodules formation were also significantly decreased by PDGF-BB; LOX activity was significantly increased. CONCLUSIONS: PDGF-BB is a powerful promoter of cell proliferation and increases the expression of stem cell markers; inhibites collagen production and mineraliration but accelerates the maturation of collagen chains through increased LOX activity and SPARC expression. PMID- 29028629 TI - A dual energy micro-CT methodology for visualization and quantification of biofilm formation and dentin demineralization. AB - OBJECTIVE: The aim of this study was to induce artificial caries in human sound dentin by means of a microcosm model using human saliva as source of bacteria and to apply a novel dual-energy micro-CT technique to quantify biofilm formation and evaluate its demineralization potential. DESIGN: Eight sound third molars had the occlusal enamel removed by cutting with a diamond disk and five cylindrical cavities (+/-2mm diameter; +/-1.5mm depth) were prepared over the dentin surface in each specimen (n=40 cavities). After sterilization, each specimen received the bacterial salivary inoculum obtained from individuals without any systemic diseases presenting dentin caries lesions and were incubated in BHI added of with 5% sucrose for 96h to allow biofilm formation. After that, two consecutive micro CT scans were acquired from each specimen (40kv and 70kv). Reconstruction of the images was performed using standardized parameters. After alignment, registration, filtering and image calculations, a final stack of images containing the biofilm volume was obtained from each prepared cavity. Dentin demineralization degree was quantified by comparison with sound dentin areas. All data were analyzed using Shapiro-Wilk test and Spearman correlation using alpha=5%. RESULTS: Dual-energy micro-CT technique disclosed biofilm formation in all cavities. Biofilm volume inside each cavity varied from 0.30 to 1.57mm3. A positive correlation between cavity volume and volume of formed biofilm was obtained (0.77, p<0.01). The mineral decrease obtained in dentin was high (+/ 90%) for all cavities and all demineralized areas showed mineral density values lower than a defined threshold for dentin caries (1.2g/cm3). CONCLUSION: Dual energy micro-CT technique was successful in the quantification of a microcosm human bacterial biofilm formation and to quantify its demineralization potential in vitro. PMID- 29028631 TI - Sexual behavior and pregnancy among adolescents in foster family homes. AB - Objective To examine the prevalence of and factors associated with sexual behavior and pregnancy involvement among adolescents in foster family homes. Methods A cross-sectional study was conducted among a random sample of children living in foster family homes. Logistic regression with Firth's correction was used to determine factors associated with sexual risk behavior and pregnancy involvement (i.e. having been pregnant or gotten someone pregnant). Results About half of adolescents (aged 13-18 years) in foster family homes ever had sex, of whom, one third had first sex before the age of 14 and one sixth had two or more sexual partners in the past 3 months. Of adolescents in the study, 9% had ever been pregnant or gotten someone pregnant. Although adolescents in foster family homes had higher rates of sex initiation and pregnancy involvement than those in the general population, the two groups had comparable rates of current sexual risk behavior. Being placed in kin/fictive kin foster homes [odds ratio (OR): 3.04; 95% confidence interval (CI): 1.18-7.80] and number of placement settings (OR: 1.20; 95% CI: 1.02-1.42) were associated with multiple sexual partners, while a history of running away from a foster home (OR: 7.64; 95% CI: 1.87-31.18) was associated with pregnancy involvement. Conclusions Efforts targeting placement stability including prevention of running away may reduce sexual risk behavior and pregnancy involvement among adolescents in foster family homes. PMID- 29028630 TI - EZH2 regulates dental pulp inflammation by direct effect on inflammatory factors. AB - OBJECTIVE: Pulpitis is a multi-factorial disease that could be caused by complex interactions between genetics, epigenetics and environmental factors. We aimed to evaluate the role of Enhancer of Zeste Homolog 2 (EZH2) in the inflammatory response of human dental pulp cells (HDPCs) and dental pulp tissues. METHODS: The expressions of inflammatory cytokines in HDPCs treated by EZH2 complex or EZH2 siRNA with or without rhTNF-alpha were examined by quantitative real-time polymerase chain reaction (q-PCR). The levels of secreted inflammatory cytokines including IL-6, IL-8, IL-15, CCL2 and CXCL12 in culture supernatants were measured by Luminex assay. In rat pulpitis model, the effects of EZH2 on dental pulp tissues were verified by histology. We invested the mechanisms of the effect of EZH2 on the inflammatory factors by ChIP assay. RESULTS: EZH2 down-regulation inhibited the expression of inflammatory factors, including IL-6, IL-8, IL-15, CCL2 and CXCL12 in HDPCs. EZH2 complex promoted the expression and secretion of these inflammatory factors in HDPCs, while EZH2 silencing could attenuate the promotion of inflammatory factors that were induced by rhTNF-alpha. In pulpitis models of rats, EZH2 down-regulation inhibited the inflammatory process of dental pulp while EZH2 complex showed no significant facilitation of pulpal inflammation. In addition, EZH2 could bind on the promoters of IL-6, IL-8 and CCL2, but not IL-15 and CXCL12, to affect the transcription of these proinflammatory cytokines. CONCLUSIONS: In HDPCs, EZH2 could induce inflammation, while EZH2 down-regulation could attenuate the inflammatory responses. EZH2 plays an important role in this inflammatory process of dental pulp. PMID- 29028632 TI - Procalcitonin as a diagnostic and prognostic marker in diabetic foot infection. A current literature review. AB - Diabetic foot ulcers (DFUs) are a very common cause of mortality and morbidity. The distinction between infected and non-infected DFU remains a very challenging task for clinicians in everyday practice. Even when infection is documented, the spectrum of diabetic foot infection is wide, ranging from cellulitis and soft tissue infection to osteomyelitis. Procalcitonin (PCT), a well-established sepsis biomarker, has been used in the diagnosis of several infections including osteomyelitis in patients with diabetes mellitus. This review gathers and presents all the relevant data, up until now, regarding the use of PCT as an assessment tool in diabetic patients with foot infection. Current evidence suggests that PCT levels could aid clinicians in distinguishing infected from non infected DFUs as well as in the distinction between soft tissue infection and bone involvement, but further and larger studies are warranted to confirm these findings. PMID- 29028633 TI - Acute kidney injury in congenital heart disease. AB - PURPOSE OF REVIEW: Acute kidney injury (AKI) is associated with significant morbidity and mortality in patients with congenital heart disease undergoing cardiac surgery or in pediatric patients with congestive heart failure. RECENT FINDINGS: This review describes the definition and various manifestations of AKI, the impact of biomarkers on the diagnosis of AKI, the importance of fluid overload as a consequence of AKI and its long-term impact. SUMMARY: There are novel biomarkers for AKI detection that should facilitate early recognition and intervention to prevent or attenuate the effects of AKI and fluid overload. Previous conventional wisdom that survivors of AKI fully recover renal function without subsequent consequences is flawed. PMID- 29028634 TI - Establishing a successful transition care plan for the adolescent with congenital heart disease. AB - PURPOSE OF REVIEW: In this review we explore the aspects needed to develop a successful transition program for adolescents with congenital heart disease and the barriers that exist to the development of such a program. RECENT FINDINGS: We review the literature including more recent publications which support the development of a transition program in order to facilitate transfer from the pediatric to the adult healthcare system. SUMMARY: With the development of a successful transition program patients will hopefully receive high-quality, continuous life-long care in the appropriate setting. PMID- 29028635 TI - Are We on the Same Page? Shared Mental Models to Support Clinical Teamwork Among Health Professions Learners: A Scoping Review. AB - PURPOSE: To conduct a scoping review to explore the construct of shared mental models (SMMs) in the context of clinical teamwork among health professions learners. METHOD: The authors searched the PubMed, ERIC, CINAHL, Scopus, Web of Science, PsychINFO, and EMBASE databases for English-language articles published between 2000 and 2016. Eligible articles mentioned SMMs in relation to clinical teamwork and included health professions learners. Two reviewers screened studies for eligibility and extracted data to determine the depth and breadth of the literature on SMMs. The authors examined definitions of the SMM construct in the context of clinical teams, educational interventions using SMMs, and the measurement of SMMs. RESULTS: Of the 1,273 articles retrieved, 23 met the inclusion criteria. SMMs were defined in less than two-fifths of the articles (9/23). All articles applied the construct to improvements in hospital-based patient safety, often in high-intensity settings (14/23). Most articles included graduate-level physicians (21/23) within clinical teams (18/23). Interventions designed to foster SMMs (6/23) included teamwork curricula/training and teamwork supportive tools. Measurements of SMMs (7/23) included a qualitative task analysis, quantitative analyses of speech, a concept mapping, and Likert-type surveys. CONCLUSIONS: In health professions education, the SMM construct lacks clear definition. Few studies described educational interventions aimed at SMM development, and few attempted to measure the construct. The authors propose an operational definition of SMMs in health care and illustrate how interventions intended to foster SMMs, such as team trainings or planning exercises and communication tools, could be developed, implemented, and assessed. PMID- 29028636 TI - Effects and Unforeseen Consequences of Accessing References on a Maintenance of Certification Examination: Findings From a National Study. AB - PURPOSE: Increasing criticism of maintenance of certification (MOC) examinations has prompted certifying boards to explore alternative assessment formats. The purpose of this study was to examine the effect of allowing test takers to access reference material while completing their MOC Part III standardized examination. METHOD: Item response data were obtained from 546 physicians who completed a medical subspecialty MOC examination between 2013 and 2016. To investigate whether accessing references was related to better performance, an analysis of covariance was conducted on the MOC examination scores with references (access or no access) as the between-groups factor and scores from the physicians' initial certification examination as a covariate. Descriptive analyses were conducted to investigate how the new feature of accessing references influenced time management within the test day. RESULTS: Physicians scored significantly higher when references were allowed (mean = 534.44, standard error = 6.83) compared with when they were not (mean = 472.75, standard error = 4.87), F(1, 543) = 60.18, P < .001, omega = 0.09. However, accessing references affected pacing behavior; physicians were 13.47 times more likely to finish with less than a minute of test time remaining per section when reference material was accessible. CONCLUSIONS: Permitting references caused an increase in performance, but also a decrease in the perception that the test has sufficient time limits. Implications for allowing references are discussed, including physician time management, impact on the construct assessed by the test, and the importance of providing validity evidence for all test design decisions. PMID- 29028637 TI - Hemorrhagic Shock After Epicardial Pacing Wire Removal: A Case Report. AB - Epicardial pacing wires are routinely used to avoid hemodynamic instability due to perioperative arrhythmias after cardiac surgery. In rare cases, pacing wires themselves can be associated with potentially life-threatening complications. Herein, we present a novel case of hemorrhagic shock and hemoperitoneum after temporary epicardial pacing wire removal. PMID- 29028639 TI - Implications of Mitochondrial Dysfunction for the Anesthetic and Perioperative Management: A Case Report of Spinal Fusion, Genetic Confusion, and a Patient's Perspective. AB - We describe a patient's personal struggle with a symptom complex consisting of profound muscle weakness requiring pyridostigmine, and metabolic abnormalities suggestive of mitochondrial disease. This included a profound sensitivity to opioids, which in the past caused severe respiratory depression during a prior hospital admission. Interestingly, the patient herself is a professor of ethics in genomic sciences, and she and her medical team thus far have not been able to formally diagnose her with mitochondrial disease. The patient now presented for a multilevel lumbar spine fusion and her hospital course and perspective on her medical odyssey are described here. PMID- 29028638 TI - Malignant Hyperthermia Versus Thyroid Storm in a Patient With Symptomatic Graves Disease: A Case Report. AB - Malignant hyperthermia and thyroid storm are intraoperative emergencies with overlapping symptoms but different treatment protocols. We faced this diagnostic dilemma in a 25-year-old patient with symptomatic hyperthyroidism, elevated free T3 and free T4, and low thyroid-stimulating hormone from Graves disease despite treatment with propranolol 80 mg daily and methimazole 40 mg every 8 hours. During thyroidectomy, he developed hyperthermia and hypercarbia without tachycardia. When the rate of rise of PaCO2 and temperature accelerated, we treated the patient for malignant hyperthermia, a diagnosis subsequently confirmed by genetic testing. PMID- 29028640 TI - Coronary Sinus Catheter-Induced Heart Block During Aortic Valve Replacement: A Case Report. AB - Conduction abnormalities after cardiac surgery are common as is spontaneous resolution of these abnormalities. However, 1%-3% of patients will require placement of a permanent pacemaker. Patients with preexisting conduction abnormalities, undergoing reoperation, preexisting pulmonary hypertension and undergoing mitral or aortic valve operations are at a higher risk for requiring a permanent pacemaker. We present the first case described in the literature of a patient with a preexisting left bundle branch block, and heart failure with a reduced left ventricular ejection fraction of 25% who developed complete heart block after placement of a coronary sinus catheter. PMID- 29028641 TI - Postoperative care after tonsillectomy: what's the evidence? AB - PURPOSE OF REVIEW: The purpose of this review is to evaluate the current literature regarding postoperative management after tonsillectomy in children. RECENT FINDINGS: Controversy remains regarding the ideal medication regimen to manage pain after tonsillectomy. Acetaminophen and ibuprofen are routinely used, although concerns of more severe postoperative hemorrhage with ibuprofen remain. Narcotics are prescribed commonly, but with extreme caution in children with severe obstructive sleep apnea. Although not always utilized by the authors, additional adjunctive medications such as perioperative dexamethasone, ketamine, and local infiltration of lidocaine into tonsillar pillars may decrease postoperative pain. Systematic reviews have shown that dexamethasone does not increase risk of posttonsillectomy bleeding. SUMMARY: Adenotonsillectomy is one of the most common procedures performed on children and may have significant morbidity from postoperative pain and bleeding. Managing pain remains challenging and the optimal treatment regimen has not been definitively identified. Many medications and alternative therapies have been studied and suggest possible benefit. PMID- 29028642 TI - "Lost to Follow-up" Among Adult Cancer Survivors. AB - BACKGROUND: Follow-up cancer care is important for patients who have received IV chemotherapy but some patients discontinue their care and are lost to follow-up (LFU) at the cancer center where they were treated. The purpose of this study was to determine what proportion of cancer survivors are LFU at 5 years after treatment, the timing of LFU, and the characteristics of those who do not continue survivorship care. METHODS: Adult patients with cancer who were treated with chemotherapy at a large community teaching hospital in 2006 and 2007 were identified and linked with State tumor registry data. Hospital medical records were reviewed to obtain information on demographics, diagnosis, treatment, and date of last follow-up visit. Characteristics of patients with >=5 years of follow-up care were compared with those who were LFU. RESULTS: In total, 487 patients received chemotherapy and 304 died (62%) during the 5-year follow-up period. Among the 183 cancer patients who were known to be alive at 5 years, 92 (50%) were LFU and 50% (46/92) of this LFU group were LFU within 1 year of diagnosis. At 5 years, follow-up care was continuing for 55% of women, compared with 39% of men. The highest proportion of follow-up was observed among lung cancer patients (84%), followed by patients with breast cancers (63%) and gastrointestinal cancers (40%). Patients with hematological cancers had the lowest follow-up proportion at 5 years (29%) (P<0.05). Follow-up was not significantly associated with age (P=0.48), insurance status(P=0.29), and race(P=0.06). CONCLUSIONS: It is estimated that 65% of the cancer survivors in the United States are >=5 years beyond their diagnosis but there is little data on oncology follow-up rates. In our retrospective study of 183 patients who were treated with chemotherapy only 49.7% continue to follow-up at their treatment center. LFU has important implications in planning long-term care strategies for cancer survivors and in survivorship research. PMID- 29028643 TI - Pharmacotherapy of borderline personality disorder: replacing confusion with prudent pragmatism. AB - PURPOSE OF REVIEW: The article aims to examine trends in the pharmacological treatment of borderline personality disorder (BPD) and shed more light on the attendant controversies. RECENT FINDINGS: Although specialized, BPD-centred psychotherapy is considered first-line treatment for BPD and no psychotropic drug has been licensed for BPD, medications are frequently prescribed in the management of this condition. Various classes of psychopharmacological agents are used for BPD and there is a prominent polypharmacy. Use of antidepressants for BPD has been decreasing somewhat and use of mood stabilizers and second generation antipsychotics has been increasing. Although there is a general agreement that little evidence of efficacy of medications exists for BPD, clinicians are either advised to almost completely avoid pharmacotherapy for BPD or use a 'targeted' approach, administering specific medications for the specific symptoms of BPD. This has created some confusion in clinical practice and contributed to a variety of prescribing practices for BPD. SUMMARY: Well designed studies of the efficacy of pharmacological agents in BPD are needed. Clinicians should use medications for BPD with caution, usually short term and mainly for symptom relief. They should frequently review a need for ongoing pharmacotherapy and make every effort to avoid polypharmacy. PMID- 29028644 TI - The ageing-brain cognitive diseases: advances and promises. PMID- 29028645 TI - An update on the status of molecular testing for the indeterminate thyroid nodule and risk stratification of differentiated thyroid cancer. AB - PURPOSE OF REVIEW: Correct identification of malignancy in cytologically indeterminate thyroid nodules is a diagnostic challenge, leading to potentially unnecessary surgery in patients for whom final histology is benign. Similarly, many patients with differentiated thyroid cancer (DTC) undergo aggressive surgical management of tumors, which may ultimately have low-risk histologic features. Use of molecular testing strategies can aid in both the diagnosis of indeterminate thyroid nodules and preoperative risk stratification of DTC. RECENT FINDINGS: Validation studies of both the Afirma Gene Expression Classifier and Thyroseq Next-Generation Sequencing panel are ongoing. Both tests can be used to help rule out malignancy in indeterminate thyroid nodules. Recent additions to available molecular testing for indeterminate thyroid nodules include the Rosetta microRNA classifier and the augmentation of the ThyGenX gene panel with a microRNA reflex test (ThyraMIR). Mutational analysis of DTC shows that mutation in TERT alone, and in combination with other mutations, portends advanced disease. SUMMARY: Currently available molecular testing modalities are useful for ruling out malignancy in indeterminate thyroid nodules; however, longer-term follow-up studies are needed to confirm that test-negative nodules are truly benign. Analysis of specific gene mutations helps identify aggressive disease to guide prognostication and management, but further study is needed. PMID- 29028646 TI - Advances in understanding the molecular underpinnings of adrenocortical tumors. AB - PURPOSE OF REVIEW: Adrenocortical tumors are divided into benign adenomas and malignant carcinomas. The former is relatively common and carries a favorable prognosis, whereas the latter is rare and frequently presents at an advanced stage, with poor outcomes. Advances in next-generation sequencing, genome analysis, and bioinformatics have allowed for high-throughput molecular characterization of adrenal tumorigenesis. RECENT FINDINGS: Although recent genomic, epigenomic, and transcriptomic studies in large tumor cohorts have confirmed the central roles of aberrant Wnt/beta-catenin signaling, constitutive protein kinase A pathway activation, cell cycle dysregulation, and ion channelopathies in adrenal tumorigenesis, these studies also revealed novel signature events underlying malignant differentiation of adrenocortical carcinomas. SUMMARY: Recent advances in understanding of the molecular mechanisms underlying adrenocortical tumorigenesis provide new molecular diagnostic and prognostic tools and opportunities for novel therapeutic approaches. These findings are particularly important in adrenocortical carcinoma, for which current treatment options are limited. PMID- 29028647 TI - Change in Engagement in Cognitive Activity and Risk for Mild Cognitive Impairment in a Cohort of Older Adults: The Monongahela-Youghiogheny Healthy Aging Team (MYHAT) Study. AB - Engagement in cognitively stimulating activities is gaining prominence as a potential strategy to maintain cognitive functioning in old age. In a population based cohort of individuals aged 65+ years, we examined patterns of change in frequency of engagement in total cognitive activity (TCA), higher cognitive activity (HCA), and frequent cognitive activity (FCA) based on the Florida Cognitive Activities Scale over an average of 3.62 years, and whether these patterns were associated with incident mild cognitive impairment (MCI) during this same period. Among 867 cognitively normal participants, 129 (15%) progressed to MCI. Latent class trajectory modeling identified high and stable, slowly, and quickly declining patterns for TCA; high and stable, slowly declining, and slowing increasing patterns for FCA; and high and stable, and slowly declining patterns for HCA. Separate, adjusted Cox proportional hazard models, revealed that compared with the high, stable pattern, both slow decline [hazard ratio (HR), 2.5; 95% confidence interval (CI), 1.5-4.0] and quick decline (HR, 11.0; 95% CI, 6.3-19.2) in TCA, and slow decline in the FCA (HR, 8.7; 95% CI, 5.3-14.3) and HCA (HR, 3.4; 95% CI, 2.0-5.6) subscales increased risk for incident MCI. Maintaining engagement in cognitive activities may be protective against progression to MCI, alternatively, declining engagement may be a marker for impending cognitive impairment. PMID- 29028648 TI - Gintonin Administration is Safe and Potentially Beneficial in Cognitively Impaired Elderly. PMID- 29028649 TI - [18F]-THK5351 PET Imaging in Patients With Semantic Variant Primary Progressive Aphasia. AB - BACKGROUND: Semantic variant primary progressive aphasia (svPPA) has been associated with a variety of proteinopathies, mainly transactive response DNA binding protein, but also with tau and beta-amyloid. Recently selective tau tracers for positron emission tomography (PET) have been developed to determine the presence of cerebral tau deposits in vivo. Here, we investigated the topographical distribution of THK5351 in svPPA patients. MATERIALS AND METHODS: Five svPPA patients, 14 Alzheimer's disease patients, and 15 age-matched normal controls underwent [F]-THK5351 PET scans, magnetic resonance imaging, and detailed neuropsychological tests. [F]-fluorodeoxyglucose PET was obtained in 3 svPPA patients, whereas the remaining 2 underwent amyloid PET using [F] flutemetamol. Tau distribution among the 3 groups was compared using regions of interest-based and voxel-based statistical analyses. RESULTS: In svPPA patients, [F]-THK5351 retention was elevated in the anteroinferior and lateral temporal cortices compared with the normal controls group (left>right), and in the left inferior and temporal polar region compared with Alzheimer's disease patients. [F]-THK5351 retention inversely correlated with glucose metabolism, whereas regional THK retention correlated with clinical severity. [F]-flutemetamol scans were negative for beta-amyloid. CONCLUSIONS: These findings show that [F]-THK5351 retention may be detected in cortical regions correlating with svPPA pathology. PMID- 29028650 TI - Fast digestive proteins and sarcopenia of aging. AB - PURPOSE OF REVIEW: The speed of dietary protein digestion influences postprandial amino acid availability which is crucial for improving altered anabolic response of skeletal muscle one feature of sarcopenia during aging. RECENT FINDINGS: By analogy with carbohydrate and in reference to their absorption rate, dietary proteins can be classified as 'fast' or 'slow' proteins depending on matrix food structure and technological processes, which can influence amino acids availability and their subsequent metabolic actions. 'Fast' digestive proteins have been shown to stimulate muscle protein synthesis and to improve muscle function in several recent studies involving older patients. These new aspects may be applied for improving health through preservation or restoration of muscle protein mass and function in clinical situations (obesity, rheumatoid arthritis and cancer cachexia). SUMMARY: Using fast digestive proteins is of major interest to overcome 'anabolic resistance' of aging for limiting sarcopenia. Fast proteins' action on muscle anabolism may be stimulated by other nutrients like vitamin D or omega 3 fatty acids or by combination with exercise. The beneficial impact of the 'fast' protein concept beyond the amount of dietary protein on muscle preservation is a promising therapeutic perspective to improve mobility and quality of life of older patients affected with chronic disease. PMID- 29028651 TI - Endoscopic Conduit Harvest in Coronary Artery Bypass Grafting Surgery: An ISMICS Systematic Review and Consensus Conference Statements. AB - OBJECTIVE: The purpose of this consensus conference was to develop and update evidence-informed consensus statements and recommendations on harvesting saphenous vein and radial artery via an open as compared with endoscopic technique by systematically reviewing and performing a meta-analysis of randomized and nonrandomized clinical trials. METHODS: All randomized controlled trials and nonrandomized controlled trials included in the first the International Society for Minimally Invasive Cardiothoracic Surgery Consensus Conference and Statements, in 2005 up to November 30, 2015, were included in a systematic review and meta-analysis. Based on the resultant, 76 studies (23 randomized controlled trials and 53 nonrandomized controlled trials) on 281,459 patients analyzed, consensus statements, and recommendations were generated comparing the risks and benefits of endoscopic versus open conduit harvesting for patients undergoing coronary artery bypass grafting. RESULTS: Compared with open vein harvest, it is reasonable to perform endoscopic vein harvest of saphenous vein to reduce wound-related complications, postoperative length of stay, and outpatient wound management resources and to increase patient satisfaction (class I, level A). Based on the quality of the conduit and major adverse cardiac events as well as 6-month angiographic patency, endoscopic vein harvest was noninferior to open harvest. It is reasonable to perform endoscopic radial artery harvest to reduce wound-related complication and to increase patient satisfaction (class I, level B-R and B-NR, respectively) with reduction in major adverse cardiac events and noninferior patency rate at 1 and 3 to 5 years (class III, level B-R). CONCLUSIONS: Based on the consensus statements, the consensus panel recommends (class I, level B) that endoscopic saphenous vein and radial artery harvesting should be the standard of care for patients who require these conduits for coronary revascularization. PMID- 29028653 TI - Adams-Oliver Syndrome With Moyamoya Disease for Cerebral Revascularisation Surgery. PMID- 29028652 TI - Novel Dry-Lab Training Method for Totally Endoscopic Coronary Anastomosis: A Pilot Study. AB - OBJECTIVE: We describe our original dry-lab training system for nonrobotic and beating heart endoscopic coronary artery anastomosis. METHODS: All the materials used for this training were commercially available. We selected a boxed machine, which can produce pulsatile movements of artificial vessels, and on its roof, we installed a two-dimensional home video camera and a monitor. A multiple-holed plate was placed in front of the machine, and through these holes, a trainee inserted endoscopic surgical instruments and anastomosed the artificial vessels by running fashion while watching the monitor. This training program has four stages. During the first stage, a trainee has to demonstrate mastery in conducting a conventional off-pump coronary artery anastomosis without assistance. The second stage is the "nonbeating" version, and the third stage is the "beating" version with the model mentioned previously. After a trainee gets accustomed to the third stage, the original artificial vessel is replaced with an extremely fragile one, and this is the fourth stage. Our trainee conducted one hundred fourth-stage anastomoses and each procedure was recorded with the video camera. We analyzed several factors from the videos and evaluated the efficacy of the training method. We compared the outcomes of the first 50 consecutive anastomoses with the following 50 ones and described the learning curves. RESULTS: The comparison showed a significant decrease in anastomotic time and vessel injury. We considered the quality of anastomosis acceptable after 47 anastomoses, and anastomotic time fell below 15 minutes at the 81st training at the fourth stage. CONCLUSIONS: Our dry-lab system might be an effective training method for endoscopic coronary anastomosis. PMID- 29028654 TI - To the Editor. PMID- 29028655 TI - Potency of HIV-2-specific antibodies increase in direct association with loss of memory B cells. AB - : Potent HIV-neutralizing antibodies are critical for vaccination and viral reservoir control. High levels of neutralizing antibodies characterize HIV-2 infection, a naturally occurring model of attenuated HIV disease with low-to undectable viremia. We found that HIV-2-specific antibody potency increased in direct association with the loss of both switched and unswitched memory B cells in untreated HIV-2 infection. Thus, HIV antibody affinity maturation is linked to memory B-cell exhaustion even in reduced viremia settings. PMID- 29028657 TI - Combinations of interventions to achieve a national HIV incidence reduction goal: insights from an agent-based model. AB - OBJECTIVE: Analyzing HIV care service targets for achieving a national goal of a 25% reduction in annual HIV incidence and evaluating the use of annual HIV diagnoses to measure progress in incidence reduction. DESIGN: Because there are considerable interactions among HIV care services, we model the dynamics of 'combinations' of increases in HIV care continuum targets to identify those that would achieve 25% reductions in annual incidence and diagnoses. METHODS: We used Progression and Transmission of HIV/AIDS 2.0, an agent-based dynamic stochastic simulation of HIV in the United States. RESULTS: A 25% reduction in annual incidence could be achieved by multiple alternative combinations of percentages of persons with diagnosed infection and persons with viral suppression including 85 and 68%, respectively, and 90 and 59%, respectively. The first combination corresponded to an 18% reduction in annual diagnoses, and infections being diagnosed at a median CD4 cell count of 372 cells/MUl or approximately 3.8 years from time of infection. The corresponding values on the second combination are 4%, 462 cells/MUl, and 2.0 years, respectively. CONCLUSION: Our analysis provides policy makers with specific targets and alternative choices to achieve the goal of a 25% reduction in HIV incidence. Reducing annual diagnoses does not equate to reducing annual incidence. Instead, progress toward reducing incidence can be measured by monitoring HIV surveillance data trends in CD4 cell count at diagnosis along with the proportion who have achieved viral suppression to determine where to focus local programmatic efforts. PMID- 29028658 TI - Immunologic response to antiretroviral therapy by age among treatment-naive patients in Sub-Saharan Africa. AB - OBJECTIVE: To estimate the association between age at antiretroviral therapy (ART) initiation and immunologic response over time by stratum of baseline CD4 cell counts. DESIGN: Retrospective cohort analysis of data pooled from four President's Emergency Plan for AIDS Relief funded countries in Sub-Saharan Africa. METHODS: General linear models were used to estimate the mean CD4 cell count by age group within groups defined by baseline CD4 cell count. Kaplan-Meier methods were used to estimate time to achieving a CD4 cell count of at least 500 cells/MUl by age group and stratified by baseline CD4 cell count. RESULTS: A total of 126 672 previously treatment-naive patients provided 466 482 repeated CD4 cell count measurements over 4 years of ART. The median baseline CD4 cell count for all age groups was less than 200 cells/MUl. Patients aged 30-39, 40-49, 50-59, and 60 and older at ART initiation had significantly lower mean CD4 cell counts in most strata and at most time points than those 20-29 years old. Compared with those 20-29, all older age groups had a significantly longer time to, and lower rate of, achieving a CD4 cell count of 500 cells. CONCLUSION: Age is associated with the magnitude of CD4 cell gain and the amount of time it takes to gain cells at different levels of baseline CD4 cell count. The delay in achieving a robust immune response could have significant implications for the risk of tuberculosis reactivation as well as comorbidities associated with age in the management of older HIV-infected patients. PMID- 29028659 TI - Differences in acute retroviral syndrome by HIV-1 subtype in a multicentre cohort study in Africa. AB - OBJECTIVE: Symptoms of acute retroviral syndrome (ARS) may be used to identify patients with acute HIV-1 infection who seek care. ARS symptoms in African adults differ by region. We assessed whether reporting of ARS was associated with HIV-1 subtype in a multicentre African cohort study representing countries with predominant HIV-1 subtypes A, C, and D. METHODS: ARS symptoms were assessed in adults enrolling within 6 weeks after the estimated date of infection in an acute and early HIV-1 infection cohort study. HIV-1 subtype was determined by POL genotyping. We used log-binomial regression to compare ARS symptom prevalence among those with subtype A vs. C or D, adjusting for sex, time since enrolment, and enrolment viral load. RESULTS: Among 183 volunteers ascertained within 6 weeks after estimated date of infection, 77 (42.0%) had subtype A, 83 (45.4%) subtype C, and 23 (12.6%) subtype D infection. Individuals with subtype A were 1.40 (95% confidence interval: 1.17, 1.68) times as likely as individuals with subtypes C or D to report any ARS symptoms; each individual symptom other than rash was also more prevalent in subtype A than in subtype C or D, with prevalence ratios ranging from 1.94 (1.40, 2.70) for headache to 4.92 (2.24, 10.78) for lymphadenopathy. CONCLUSION: Individuals with subtype A were significantly more likely than individuals with subtypes C or D to report any ARS symptoms. HIV-1 subtypes may help explain differences in ARS that have been observed across regions in Africa, and may impact the yield of symptom-based screening strategies for acute HIV infection detection. PMID- 29028660 TI - Cumulative exposure of TDF is associated with kidney tubulopathy whether it is currently used or discontinued. AB - OBJECTIVE: Tenofovir disoproxil fumarate (TDF) increases the risk of kidney tubular dysfunction (KTD). This study was conducted to elucidate whether KTD persists after discontinuation of TDF. DESIGN: A prospective cross-sectional study which enrolled 941 HIV-1-infected patients. METHODS: KTD was predefined as the presence of at least two abnormalities among the five tubular markers (fractional excretion of phosphate, fractional excretion of uric acid, beta2 microglobulinuria, N-acetyl-beta-D-glucosaminidase, nondiabetic glycosuria). Logistic regression model was used to examine the association between KTD and cumulative TDF use, as well as current status of TDF use. RESULTS: In total, 94% of study patients were men (median age 45, estimated glomerular filtration rate 75 ml/min per 1.73 m, CD4 575 cells/MUl. About 98% were on antiretroviral therapy. In total, 64% of the patients ever used TDF and 39% currently used TDF. Twenty-nine percent used TDF for more than 5 years. KTD was diagnosed in 116 (12%) patients. In multivariate model, more than 5 years of TDF exposure and current TDF use [odds ratio (OR) 4.2, 95% confidence interval (CI) 2.37-7.56], more than 5 years and past TDF use (OR 2.4, 95% CI 1.09-5.33), less than 5 years and current TDF (OR 2.4, 95% CI 1.24-4.85), and less than 5 years and past TDF (OR 2.4, 95% CI 1.22-4.64) were all significantly associated with KTD, with never TDF use as reference. The results were the same using 4 and 3 years of exposure as the cutoff. However, with 2 years exposure, both less than 2 years and current TDF (OR 2.3, 95% CI 0.84-6.20) and less than 2 years and past TDF (OR 1.9, 95% CI 0.73-4.93) were not associated with KTD, whereas both more than 2 years and current TDF and more than 2 years and past TDF were associated. CONCLUSION: The association between cumulative TDF use and KTD was strong and robust. The results of the study suggested that TDF-related KTD might persist after discontinuation of TDF if patients used TDF for more than 2 years. PMID- 29028661 TI - Changes in viral suppression status among US HIV-infected patients receiving care. AB - OBJECTIVE: To examine changes in viral suppression status among HIV patients receiving care in 2014 and the extent of viral suppression among persons with infrequent care visits. METHODS: Using data reported to the National HIV Surveillance System from 33 jurisdictions with complete reporting of CD4 and viral load tests, we created four viral suppression status groups based on their first and last viral loads in 2014: both suppressed, first unsuppressed and last suppressed (improved), first suppressed and last unsuppressed (worsened), and both unsuppressed. We also calculated the number and percentage of persons whose sole viral load in 2014 was suppressed and had a suppressed viral load at their last test in 2013. RESULTS: Among 339 515 persons with at least two viral load tests in 2014, 72.6% had all viral loads suppressed (durably suppressed); 75.5% had the first and last tests suppressed, 10.5% improved, 4.2% worsened, and 9.9% had both unsuppressed. Among 92 309 persons who had only one viral load test in 2014, 69 960 (75.8%) were suppressed and, of those, 53 834 (76.9%) also had a suppressed viral load at their last test in 2013. CONCLUSION: National surveillance data show that the majority of patients in HIV care during 2014 were durably suppressed. More showed improved compared with worsened viral suppression status. Some patients who have less frequent care visits have sustained viral suppression. Yet one in 10 who was in regular care did not have a suppressed viral load in 2014, indicating missed opportunities for clinical interventions to help patients achieve and sustain viral suppression. PMID- 29028663 TI - Chronically infected T-cell lines become handy for a novel assay measuring the reservoir of replication-competent HIV-1. PMID- 29028662 TI - Stool Xpert MTB/RIF and urine lipoarabinomannan for the diagnosis of tuberculosis in hospitalized HIV-infected children. AB - BACKGROUND: Tuberculosis (TB) causes substantial morbidity and mortality in HIV infected children. Sample collection and the paucibacillary nature of TB in children makes diagnosis challenging. Rapid diagnostic tools using easily obtained specimens are urgently needed. METHODS: Hospitalized, HIV-infected children aged 12 years or less enrolled in a randomized controlled trial (NCT02063880) comparing urgent to post-stabilization antiretroviral therapy initiation in Kenya underwent TB evaluation. At enrollment, sputum or gastric aspirates were collected for TB culture and Xpert, stool for Xpert, and urine for lipoarabinomannan (LAM). When possible, a second sputum/gastric aspirate for culture was obtained. Stool Xpert and urine LAM performance were compared to reference sputum/gastric aspirate culture. RESULTS: Among 165 HIV-infected children, median age was 24 months [interquartile range (IQR) 13-58], median CD4% was 14.3 (IQR 8.9-22.0%), and 114 (69.5%) had severe immunosuppression. Thirteen (7.9%) children had confirmed TB (positive culture and/or Xpert). Sputum/gastric aspirate Xpert, stool Xpert, and urine LAM sensitivities were 60% [95% confidence interval (CI) 26-88%], 63% (95% CI 25-92%), and 43% (95% CI 10-82%), respectively. Specificity was 98% (95% CI 94-100%) for sputum/gastric aspirate Xpert, 99% (95% CI 95-100%) for stool Xpert, and 91% (95% CI 84-95%) for urine LAM. Stool Xpert and urine LAM sensitivity increased among children with severe immunosuppression [80% (95% CI 28-100) and 60% (95% Cl 15-95%)]. CONCLUSION: Stool Xpert had similar performance compared with sputum/gastric aspirate Xpert to detect TB. Urine LAM had lower sensitivity and specificity, but increased among children with severe immunosuppression. Stool Xpert and urine LAM can aid rapid detection of TB in HIV-infected children using easily accessible samples. PMID- 29028664 TI - Abacavir use and risk of recurrent myocardial infarction. AB - OBJECTIVE: To investigate the association between abacavir (ABC) use and recurrent myocardial infarction (MI) among HIV-positive people with a prior MI. DESIGN: International multicohort collaboration with follow-up from 1999 to 2016. METHODS: The rate of recurrent MI was described among D:A:D participants who experienced an index MI whilst in the study, and who remained under follow-up beyond 28 days after this MI. Follow-up was considered to the date of next MI, death, 1 February 2016 or 6 months after last clinic visit. Poisson regression models considered associations between recurrent MI and exposure to ABC (use at index MI, current post-MI exposure and cumulative exposure), before and after adjusting for calendar year. RESULTS: The 984 individuals who experienced an index MI during the study (91.3% male, median age 51 at index MI) were followed for 5312 person-years, over which time there were 136 recurrent MIs (rate 2.56/100 person-years, 95% confidence interval 2.13-2.99). Rates were 2.40 (1.71 3.09) and 2.65 (2.10-3.21)/100 person-years in those who were and were not on ABC, respectively, at the index MI, and 2.90 (2.01-3.78) and 2.44 (1.95-2.93)/100 person-years in those who were and were not currently receiving ABC, respectively, post-MI. No association was seen with recurrent MI and either cumulative exposure to ABC [relative rate 0.86 (0.68-1.10)/5 years], receipt of ABC at index MI [0.90 (0.63-1.29)] nor recent post-MI exposure to ABC [1.19 (0.82 1.71)]. CONCLUSION: Among people with a previous MI, there was no evidence for an association between use of ABC post-MI and an elevated risk of a recurrent MI. PMID- 29028665 TI - Gynecologic cancer in HIV-infected women: treatment and outcomes in a multi institutional cohort. AB - OBJECTIVE: To evaluate gynecologic cancer treatments in HIV-infected women for adherence to National Comprehensive Cancer Network (NCCN) guidelines and to describe survival by adherence to guidelines. DESIGN: Beyond cervical cancer, there are little data on treatment and outcomes for these women. This is a retrospective cohort study of HIV-infected women with gynecologic cancers. METHODS: HIV-infected women with gynecologic cancers from 2000 to 2015 were identified at two urban, comprehensive cancer centers. Chart reviews extracted demographic, HIV, and cancer-related variables. Cancer treatment was evaluated for adherence to NCCN guidelines. Overall survival was compared between those who received NCCN adherent and nonadherent cancer care. RESULTS: Fifty-seven women were identified; 15 vulvar (26%), 26 cervical (46%), nine ovarian (16%), and seven endometrial (12%) cancers. Median time from HIV to cancer diagnosis was 8.5 years, and 88% of women were black. Thirty patients (53%) had stage I, and 27 (47%) had stage II-IV disease. Overall, 28 women (49%) received NCCN-adherent care; 22 of 30 stage I (73%) and six of 27 stage II-IV patients (22%). Among 29 women not receiving NCCN-adherent care, 69% were due to patient-related factors or toxicity. Among women with II-IV cancers, 48-month survival was higher in women who received NCCN-adherent care than those who did not (60 versus 28%). CONCLUSION: Most HIV-infected women with advanced gynecologic cancers did not receive NCCN-adherent care and had worse survival compared to those who did. Focus on treatment-related toxicities and patient-related barriers to cancer care are necessary in this population. PMID- 29028666 TI - Microbial translocation: translating simian immunodeficiency virus to HIV. AB - PURPOSE OF REVIEW: The article describes recent advances in understanding the causes and consequences of microbial translocation in HIV and simian immunodeficiency virus infections. RECENT FINDINGS: Persistent microbial translocation contributes to aberrant immune activation in immunodeficiency lentiviral infections and thereby, pathogenesis and mortality. Efforts to delineate the circumstances surrounding translocation have benefited from use of simian immunodeficiency virus-infected nonhuman primates and highlight the overwhelming immunologic diversion caused by translocating microbes. The use of therapeutics aimed at reducing microbial translocation show promise and will benefit from continued research into the mechanisms that promote systemic microbial dissemination in treated and untreated infections. SUMMARY: Insights into the source and identity of translocating microbes in lentiviral infections continue to enhance the development of adjunct therapeutics. PMID- 29028668 TI - The mycobiome in HIV. AB - PURPOSE OF REVIEW: There are a limited number of studies investigating the association between the microbiome and HIV. Although the majority of these published investigations have focused on the role of the bacterial community (bacteriome) in this setting, a handful of studies have also characterized the role of the mycobiome in HIV-infected individuals. This review will summarize the most recent reports pertaining to the role of the fungal community in HIV. RECENT FINDINGS: Differences in the composition of the oral and respiratory mycobiome in HIV-infected individuals compared with uninfected individuals have been reported. SUMMARY: Our review shows that studies investigating the role of the mycobiome in the setting of HIV are severely lacking. With recent advances in our understanding of the composition of the human microbiome, investigations into the role of the bacteria and fungus comprising the overall microbiota and how the two interact to influence each other and the host is crucial. PMID- 29028669 TI - The Fourth Conference of the International Society for Environmental Epidemiology in the Asia Chapter Region. PMID- 29028667 TI - Impact of antiretroviral drugs on the microbiome: unknown answers to important questions. AB - PURPOSE OF REVIEW: Little is known on how different antiretroviral (ARV) drugs affect the gut microbiome in HIV infection; and conflicting data exists on the effect of ARV drugs on residual inflammation/immune activation and microbial translocation. RECENT FINDINGS: Gut microbiome involvement in the transmission and pathogenesis of HIV infection is increasingly being recognized. Various studies have shown that antiretroviral therapy (ART) is unable to restore gut health despite effective suppression of plasma HIV viremia. Indeed, the resolution of residual inflammation and gut microbial translocation is partial under ART. Very recent studies have provided new evidence that ARV combinations can differentially affect the gut microbiome, immune activation and microbial translocation. Furthermore, a recent article uncovered a link between drug metabolism and specific microbial species indicating that microbes can directly metabolically degrade ARV drugs when administered topically. SUMMARY: There are still many unanswered questions regarding ARVs and the gut microbiome. It is, therefore, critical for researchers to address the effect of distinct ARV drugs on the microbiome and vice versa: the effects of the microbiome on ARV drug metabolism, and speculate about possible therapeutic avenues. PMID- 29028670 TI - Cord Blood Bisphenol A Levels and Reproductive and Thyroid Hormone Levels of Neonates: The Hokkaido Study on Environment and Children's Health. AB - BACKGROUND: Bisphenol A (BPA) is widely used and BPA exposure is nearly ubiquitous in developed countries. While animal studies have indicated adverse health effects of prenatal BPA exposure including reproductive dysfunction and thyroid function disruption possibly in a sex-specific manner, findings from epidemiologic studies have not been enough to prove these adverse effects. Given very limited research on human, the aim of this study was to investigate associations between cord blood BPA levels and reproductive and thyroid hormone levels of neonates and whether associations differed by neonate sex. METHODS: The study population included 514 participants of the Hokkaido study recruited from 2002 to 2005 at one hospital in Sapporo, Japan. The BPA level in cord blood was determined by ID-LC/MS/MS, and the limit of quantification was 0.040 ng/ml. We measured nine types of reproductive hormone levels in cord blood, and thyroid hormone levels were obtained from neonate mass screening test data. There were 283 subjects, who had both BPA and hormone levels measurements, included for the final analyses. RESULTS: The geometric mean of cord blood BPA was 0.051 ng/ml. After adjustment, BPA level was negatively associated with prolactin (PRL) (beta = -0.38). There was an interaction between infant sex and BPA levels on PRL; a weak negative association was found in boys (beta = -0.12), whereas a weak positive association was found in girls (beta = 0.14). BPA level showed weak positive association with testosterone, estradiol, and progesterone levels in boys. No association was found between BPA and thyroid hormone levels. CONCLUSIONS: Our findings suggested that fetal BPA levels might be associated with changes in certain reproductive hormone levels of neonates in a sex-specific manner, though further investigations are necessary. PMID- 29028671 TI - Prenatal and Childhood Exposure to Phthalate Diesters and Thyroid Function in a 9 Year Follow-up Birth Cohort Study: Taiwan Maternal and Infant Cohort Study. AB - BACKGROUND: Phthalates are widely used in industry, personal care products, and medications. Recent studies have suggested that phthalate exposure alters thyroid hormones. However, longitudinal studies concerning the association between phthalate exposure and thyroid function in children are scant. Therefore, we examined the association between pre- and postnatal phthalate exposure and thyroid function in children born in 2000-2001. METHODS: We studied 181 mother child pairs in central Taiwan and followed-up the children from 2000 to 2009 at 2, 5, and 8 years old. We measured serum levels of thyroxine (T4), free T4, triiodothyronine (T3), and thyroid-stimulating hormone in children by using radioimmunoassay. We quantified seven phthalate metabolites, representing the five most commonly used phthalates, in maternal and child urine samples by using liquid chromatography-tandem mass spectrometry. The metabolites were monoethylhexyl phthalate (MEHP), mono-(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP), mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP) derived from di(2-ethylhexyl) phthalate (DEHP), monomethyl phthalate (MMP), monoethyl phthalate (MEP), monobutyl phthalate (MBP), and monobenzyl phthalate (MBzP). We constructed a linear mixed model to examine these associations after adjustments for covariates. RESULTS: The T4 levels were inversely associated with maternal urinary MEHHP (beta = -0.028 [95% confidence interval (CI) = -0.051, -0.006]) and MEOHP (beta = -0.027 [-0.050, -0.003]), with similar T3 levels being observed in boys, even when the children exposure levels were considered spontaneously. In the girls, the free T4 levels were inversely associated with levels of maternal urinary MEP (beta = -0.042), maternal urinary MBzP (beta = -0.050), and children's urinary MEHP (beta = -0.027). CONCLUSIONS: Early life phthalate exposure was associated with decreased thyroid hormone levels in young children. PMID- 29028672 TI - Birth Cohort Consortium of Asia: Current and Future Perspectives. AB - BACKGROUND: The environmental health of children is one of the great global health concerns. Exposures in utero and throughout development can have major consequences on later health. However, environmental risks or disease burdens vary from region to region. Birth cohort studies are ideal for investigating different environmental risks. METHODS: The principal investigators of three birth cohorts in Asia including the Taiwan Birth Panel Study (TBPS), the Mothers and Children's Environmental Health Study (MOCEH), and the Hokkaido Study on Environment and Children' Health (Hokkaido Study) coestablished the Birth Cohort Consortium of Asia (BiCCA) in 2011. Through a series of five PI meetings, the enrolment criteria, aim of the consortium, and a first-phase inventory were confirmed. RESULTS: To date, 23 birth cohorts have been established in 10 Asian countries, consisting of approximately 70,000 study subjects in the BiCCA. This article provides the study framework, environmental exposure and health outcome assessments, as well as maternal and infant characteristics of the participating cohorts. CONCLUSIONS: The BiCCA provides a unique and reliable source of birth cohort information in Asian countries. Further scientific cooperation is ongoing to identify specific regional environmental threats and improve the health of children in Asia. PMID- 29028673 TI - Association Between Organophosphate Pesticide Exposure and Thyroid Hormones in Pregnant Women. AB - BACKGROUND: Use of organophosphate pesticides (OPs) is widespread in China. Although animal studies suggested that OP exposure could affect thyroid function, little is explored in human populations. METHODS: We investigated levels of OP exposure in pregnant women and the relationship between OPs and thyroid hormones in Shandong, China. We enrolled 637 pregnant women from April 2011 to December 2013. OP exposure was assessed by a questionnaire administered to the pregnant women in the hospital and by analyses of urinary dialkylphosphate (DAP) metabolites of OPs in pregnant women (n = 413). We measured the concentration of five thyroid hormones in serum samples in pregnant women (n = 325) and analyzed the association between DAP metabolites of OPs and thyroid hormones (n = 325). RESULTS: Median levels of DAP metabolites were 9.81 MUg/L for dimethylphosphate (DMP), 0.79 MUg/L for dimethylthiophosphate (DMTP), 5.00 MUg/L for diethylphosphate (DEP), and 0.78 MUg/L for diethylthiophosphate (DETP), which were higher than those reported in developed countries. We found that the total DAP concentration (the sum of DMP, DMTP, DEP, and DETP) in urine was positively associated with free T4 levels (beta = 0.137; 95% confidence interval [CI] = 0.012, 0.263) and negatively associated with thyroid-stimulating hormone levels (beta = -0.145; 95% CI = -0.242, -0.048). CONCLUSIONS: The findings suggest that OP exposure may be associated with changes in thyroid function in pregnant women. Given that urinary OP levels in pregnant women in Shandong were much higher than those reported in developed countries, further studies on the effects of OP exposure on thyroid function in pregnant women in China are warranted. PMID- 29028674 TI - Urinary Bisphenol A Concentration and Gestational Diabetes Mellitus in Chinese Women. AB - BACKGROUND: Bisphenol A (BPA) has been associated with variable metabolic effects in animal models. It is unknown whether BPA exposure affects glucose tolerance in pregnancy. We aimed to investigate whether maternal urinary BPA concentration is associated with gestational diabetes mellitus (GDM). METHODS: This study included 620 pregnant women from Shanghai, China 2012-2013. Maternal urinary BPA concentration was measured by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). GDM (n = 79) was diagnosed according to the criteria of the International Association of Diabetes and Pregnancy Study Groups (IADPSG). Multivariate regressions were used to explore the relationships of urinary BPA with GDM, plasma glucose levels in the 75-g 2-hour oral glucose tolerance test (OGTT), birth weight, and ponder index. RESULTS: The geometric mean of BPA was 1.32 MUg/L. After adjustment for maternal age, education, husband smoking status, prepregnancy body mass index (BMI), and urinary creatinine concentration, plasma glucose at 2 hours in the 75-g OGTT was 0.36 mmol/L lower (95% confidence index [CI] = -0.73, 0.01) for women with urine BPA in the high versus the low tertile. For each unit increase in natural log-transformed BPA, the odds of GDM was reduced by 27% (odds ratio (OR) = 0.73; 95% CI = 0.56, 0.97), the birth weight decreased by 25.70 g (95% CI = -54.48, 3.07), and ponder index was decreased by 0.02 (100 g/cm) (95% CI = -0.03, 0.00). CONCLUSIONS: Higher maternal urinary BPA concentrations were associated with reduced risk of GDM and marginally lower birth weight and ponder index. PMID- 29028675 TI - The Risk of Stroke in Physicians: A Population-based Cohort Study in Taiwan. AB - BACKGROUND: Physicians in Taiwan work in stressful workplaces and have heavy workloads, both of which may contribute to the occurrence of a stroke. However, it is not clear whether they have a higher risk of stroke. Therefore, we conducted a population-based cohort study to compare the risks of stroke between physicians and the general population and among subgroups of physicians in Taiwan. METHODS: In the National Health Insurance Research Database of Taiwan, we identified 28,062 physicians and selected 84,186 age- and sex-matched nonmedical staff beneficiaries as the references. Using conditional logistic regression, we compared the prevalence of stroke between physicians and references. In addition, we made comparisons among subgroup of physicians defined by age, sex, comorbidity, specialty, and the level of hospital. RESULTS: During the study period, physicians had higher prevalence rates of hypertension (23.6% vs. 19.1%), hyperlipidemia (21.4% vs. 12.9%), and coronary artery disease (CAD) (6.4% vs. 5.7%) than the referent group, but they had a lower risk of stroke with an odds ratio of 0.61 (95% confidence interval = 0.55, 0.66) after adjusting for hypertension, diabetes, hyperlipidemia, CAD, and active worker. Among physicians, the risks were higher in those who were older or had hypertension, diabetes, hyperlipidemia, or CAD. CONCLUSIONS: Despite having higher prevalence rates of hypertension, hyperlipidemia, and CAD and working in stressful workplaces with heavy workloads, our study suggests that physicians in Taiwan have a lower risk of stroke compared with the general population. These results may indicate the benefits of higher awareness and more knowledge of diseases. PMID- 29028676 TI - Air Pollution as a Potential Determinant of Rheumatoid Arthritis: A Population based Cohort Study in Taiwan. AB - BACKGROUND: Limited studies have explored the relationship between air pollution and rheumatoid arthritis (RA), with the results being somewhat inconsistent. METHODS: This was a retrospective cohort study that included 322,301 subjects aged 30-50 years, selected from the National Health Insurance Research Database in Taiwan, were followed from 2001 to 2010. We used a time-dependent extended Cox model and incorporated time-dependent variables to estimate the associations between the annual mean concentrations of air pollutants with RA, including carbon monoxide (CO), nitrogen dioxide (NO2), ozone (O3), particles with an aerodynamic diameter less than 10 MUm (PM10), and sulfur dioxide (SO2), and reported the hazard ratio (HR) and 95% confidence interval (CI). RESULTS: Newly diagnosed RA was positively associated with a 100-ppb increase in CO (adjusted HR = 1.17 [95% CI = 1.16, 1.18]), a 10-ppb increase in NO2 (1.54 [1.45, 1.64]), a 10 ppb increase in O3 (1.37 [1.33, 1.41]), and a 1 ppb in SO2 (1.02 [1.00, 1.04]). There was no association between a 10-MUg/m increase in PM10 and RA (1.02 [0.99, 1.05]). CONCLUSIONS: Our finding suggests that O3 and traffic-related air pollutants (CO and NO2) may be positively associated with incident RA. This is an important finding given that many individuals are exposed to similar levels of O3 and NO2 globally. PMID- 29028677 TI - Are People With a History of Disease More Susceptible to a Short-term Exposure to Asian Dust?: A Case-Crossover Study Among the Elderly in Japan. AB - BACKGROUND: Factors influencing the susceptibility of the elderly to the adverse health effects of short-term exposure to desert dust have yet to be explored. We aimed to identify the disease histories that increase the susceptibility of the elderly to disease onset induced by dust events. METHODS: We used a time stratified case-crossover design using data on 17,874 elderly residents (>=65 years) of Okayama, Japan, who were transported to hospital emergency rooms because of cardiovascular and respiratory diseases between 2006 and 2010. We used conditional logistic models to calculate the odds ratios (ORs) per interquartile increase of Asian dust. We then conducted stratified analyses based on patients with or without a history of chronic disease. RESULTS: Dust concentration was associated with a higher risk of cardiovascular (3-day lag), cerebrovascular (same day), and respiratory (3-day lag) disease onset. Patients with a history of respiratory disease had a higher risk of cardiovascular (OR: 1.09 [95% confidence interval (CI) = 1.00, 1.19] vs. 0.99 [0.97, 1.01]; P for interaction = 0.03) or cerebrovascular (1.15 [1.01, 1.31] vs. 0.99 [0.97, 1.01]; P = 0.02) disease onset (2-day lag) than those without. Patients with diabetes also had a higher risk of cerebrovascular disease onset (1.09 [1.00, 1.19] vs. 0.99 [0.97, 1.01]; P = 0.05) (2-day lag). In contrast, patients with a history of cerebrovascular disease had a lower risk of respiratory disease. CONCLUSIONS: People with a history of respiratory disease or diabetes might have a greater susceptibility to cardiovascular disease from Asian dust and would therefore benefit from proactive interventions during desert dust events. PMID- 29028678 TI - Increase in Medical Emergency Calls and Calls for Central Nervous System Symptoms During a Severe Air Pollution Event, January 2013, Jinan City, China. AB - BACKGROUND: In January 2013, a continuous and severe haze event affected one third of the major cities in China, including Jinan. OBJECTIVES: We investigated whether medical emergency calls (for nonaccidental emergencies) and calls for Central Nervous System (CNS) syndromes increased during this episode compared with the previous winter months (January, February, and December) in 2011 and 2012. METHODS: Daily emergency calls were obtained from Jinan Medical Emergency Center. Sentinel CNS syndromes from nonaccidental emergency calls included seven symptoms: headache, dizziness, syncope, coma, convulsions, paralysis, and epilepsy. Particles with aerodynamic diameter <10 um (PM10) were used as the indicator of air pollution. A generalized linear model based on quasi-Poisson regression was used to evaluate the effects on nonaccidental emergency calls and calls for CNS syndromes and each symptom, separately, during this episode. RESULTS: Markedly higher mean daily concentration, 332 MUg/m of PM10, during this episode versus reference months was found. Obviously increased effects on nonaccidental emergency calls and calls for CNS syndromes were observed during this episode, with relative risk (RR) value 1.3 (95% CI = 1.2, 1.3) and 1.2 (95% CI = 1.1, 1.3). Four of seven CNS symptoms were also increased during this episode: RRs values for dizziness, convulsions, paralysis, and epilepsy were 1.4 (95% CI = 1.2, 1.7), 1.4 (95% CI = 1.1, 1.6), 1.6 (95% CI = 1.2, 2.1), and 1.5 (95% CI = 1.1, 2.0), respectively. CONCLUSIONS: A noticeable increase in medical emergency calls and calls for Central Nervous System syndromes were observed during a severe air pollution episode on January 2013, in a large Chinese city. PMID- 29028679 TI - Association Between Long-term Exposure to Traffic-related Air Pollution and Inflammatory and Thrombotic Markers in Middle-aged Adults. AB - BACKGROUND: Studies evaluating possible associations between long-term exposure to air pollution and inflammatory and thrombotic markers are limited. METHODS: From 2009 to 2011, we monitored hematologic parameters and thrombotic markers in 402 volunteers 35-65 years of age who were recruited as the non-coronary heart disease (CHD) controls in a study of work-related factors and CHD in Taipei. We applied land-use regression models developed by the European Study of Cohorts for Air Pollution Effects to estimate the mean annual exposure of each participant to five air pollutants at their residence in Taipei, namely particulate matter (PM) of diameter <10 MUm (PM10) and 2.5 MUm (PM2.5), the absorbance of PM2.5 (PM2.5 abs), nitrogen dioxide (NO2), and nitrogen oxide (NOx). RESULTS: The mean annual exposures were 47.82 +/- 4.78 ug/m for PM10, 29.08 +/- 5.10 ug/m for PM2.5, and 2.04 +/- 0.37 (10 m) for PM2.5 abs. Multivariate linear regression analyses showed that the mean percentage (95% confidence interval) of blood monocyte counts increased by 9.08% (1.61%, 16.54%) per 10 ug/m increase in PM10, by 16.28% (6.66%, 25.89%) per 1.0 * 10 m increase in PM2.5 abs, by 8.28% (2.08%, 14.48%) per 20 ug/m increase in NO2, and by 2.84% (1.22%, 4.46%) per 10 ug/m increase in NOx. In addition, each 5 MUg/m increase in PM2.5 was associated with 1.97% (0.02%, 3.92%) increases in fibrinogen. CONCLUSIONS: Long-term exposure to traffic-related air pollution is positively associated with subclinical inflammatory and thrombotic markers in middle-aged workers in Taipei. PMID- 29028680 TI - Association Between Dioxin and Metabolic Syndrome by Age and Sex in an Endemic Area of Exposure in Taiwan. AB - BACKGROUND: Some of the effects of dioxins seem to be different between men and women, and exposures starting at an early age seem to have more prominent effects. Therefore, we conducted a study in Taiwan to evaluate the associations between exposure to polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and metabolic syndrome (MetS) starting at different ages in both sexes. METHODS: We recruited participants from an area where residents were exposed to PCDD/Fs released from a factory and defined serum PCDD/Fs levels >=20 pg WHO98-TEQDF/g lipid as high dioxin levels. MetS was defined as meeting three of the following criteria: fasting glucose >=100 mg/dl or under treatment for diabetes, waist circumference >=90 cm in men or >=80 cm in women, triglycerides >=150 mg/dl or under treatment for elevated triglycerides, high-density lipoprotein <40 mg/dl in men or <50 mg/dl in women, and blood pressures >=130/85 mmHg or under treatment for hypertension. RESULTS: Of the 2758 participants, 785 patients with MetS were identified, and we observed positive associations between a high dioxin level and MetS. After adjusting for sex, age, and age at starting exposure, we found that a high dioxin level was an independent predictor for MetS (adjusted odds ratio =1.38; 95% confidence interval = 1.11, 1.72). When we stratified the participants by gender, we found that a high dioxin level remained an independent predictor of MetS in men, but not in women, regardless of the age at starting exposure. CONCLUSIONS: Exposure to PCDD/Fs was associated with MetS in men, independent of age and age at starting exposure. PMID- 29028681 TI - Polybrominated Diphenyl Ether Concentrations in Human Breast Milk Specimens Worldwide. AB - BACKGROUND: Polybrominated diphenyl ethers (PBDEs) are a class of flame retardants of ubiquitous presence in numerous consumer products. PBDEs may impair neurodevelopment in infants. There is a lack of meta-analysis on PBDE concentrations in human breast milk worldwide. We aimed to summarize global research data on PBDE concentrations in human breast milk specimens in recent years. METHODS: We conducted a systematic review through PubMed search of original studies on PBDE concentrations in human individual breast milk specimens collected in the general population over the recent 15-year period (2000-2015) worldwide. RESULTS: A total of 49 eligible studies (total number of study subjects = 7,502) were identified. The pooled means (95% CI) of total PBDE concentration in breast milk (ng/g lipid) were 66.8 (44.7, 88.9) in North America, 2.6 (2.2, 3.1) in Europe, and 2.8 (2.4, 3.3) in Asia, respectively. The pooled means (95% CI) of median total PBDEs concentration in breast milk (ng/g lipid) were 40.0 (30.8-49.1) in North America, 1.9 (1.4-2.4) in Europe, and 2.2 (1.3-3.2) in Asia. The high concentrations of total PBDEs in breast milk in North America were mainly due to high concentrations of brominated diphenyl ether-47 (BDE-47), BDE-99, BDE-100, and BDE-153. There were too few studies from other continents (Africa, South America, and Oceania) for meaningful meta-analysis. CONCLUSION: Total PBDE concentrations in breast milk in the recent 15-year period were over 20 times higher in North America versus Asia or Europe, and comparable in Europe versus Asia. There is a need for more research data from other continents. PMID- 29028682 TI - Current and Projected Burden of Disease From High Ambient Temperature in Korea. AB - BACKGROUND: The objective of the present study was to estimate the current and projected burden of disease from high ambient temperature using population-based data sources of nationwide mortality and morbidity in Korea. METHODS: Disability adjusted life years (DALY) were estimated using noninjury-related deaths, and cerebrovascular and cardiovascular diseases from recently released nationwide health and mortality databases. Years of life lost and years lost due to disability were measured based on the point prevalence and number of deaths during the study period. Future DALY attributable to heat waves were estimated from projected populations, and temperature predictions for the years 2030 and 2050 were under Representative Concentration Pathways (RCP) 4.5 and 8.5 with summertime temperatures above threshold. RESULTS: Relative risks (RR) of total mortality and of cardiovascular disease were 1.02 (95% CI, 1.01, 1.02) and 1.08 (95% CI, 1.06, 1.09) for each 1 degrees C increase in temperature above threshold, respectively. The morbidity of heat-related disease was RR 1.67 (95% CI, 1.64, 1.68) for each 1 degrees C increase in temperature above threshold. DALY for all-cause death were 0.49 DALY/1000 in 2011, 0.71 (0.71) DALY/1000 in 2030 and 0.77 (1.72) DALY/1000 in 2050 based on RCP 4.5 (RCP 8.5). DALY for cardio- and cerebrovascular diseases were 1.24 DALY/1000 in 2011, 1.63 (1.82) DALY/1000 in 2030, and 1.76 (3.66) DALY/1000 in 2050 based on RCP 4.5 (RCP 8.5). CONCLUSIONS: Future excess mortality due to high ambient temperature is expected to be profound in Korea. Efforts to mitigate climate change can provide substantial health benefits via reducing heat-related mortality. PMID- 29028683 TI - Lung Cancer Associated with Arsenic Ingestion: Cell-type Specificity and Dose Response. AB - BACKGROUND: Arsenic is a well-documented human carcinogen, and studies on urinary and skin cancers have shown that the carcinogenicity of ingested arsenic has cell type specificity. To evaluate whether this is also true for lung cancers, we conducted a study on 243 townships in Taiwan. METHODS: The arsenic levels were assessed using measurement reports from a previous survey, and the incidence of lung cancer was assessed using the data gathered by the National Cancer Registry Program. We analyzed data by regression models with multiple variables to describe exposure levels; each variable denoted the proportion of people in a specific exposure category in each township. An urbanization index and variables denoting the distribution of age in each township were also included in the model to adjust for effects of urbanization and age. RESULTS: Among the three major cell types of lung cancer, squamous cell carcinoma appeared to be associated with arsenic level in drinking water, and the association was more prominent at exposure level above 0.64 mg/L in both men and women. A 1% increase in the proportion of wells in this category was associated with an increase of 0.27 per 100,000 per year in the incidence of squamous cell lung cancer in men and 0.13 per 100,000 per year in women. Adenocarcinoma and small cell carcinoma were not associated with arsenic level in drinking water. CONCLUSIONS: The results suggested that the carcinogenicity of arsenic on lungs is cell-type specific, which is compatible with observations on urinary and skin cancers. Whereas data in the literature were limited, the association between adenocarcinoma and arsenic exposures through inhalation appeared to be stronger than that of squamous cell carcinoma. Therefore, different exposure routes may give rise to different mechanisms in the carcinogenicity of arsenic. PMID- 29028684 TI - Toxic Metals Increase Serum Tumor Necrosis Factor-alpha Levels, Modified by Essential Elements and Different Types of Tumor Necrosis Factor-alpha Promoter Single-nucleotide Polymorphisms. AB - BACKGROUND: Lead (Pb), cadmium (Cd), and arsenic (As) could cause health issues through oxidative stress that is indicated in the elevated tumor necrosis factor alpha (TNF-alpha). However, some of the essential elements-selenium (Se), zinc (Zn), cobalt (Co), and copper (Cu)-are cofactors or structural components of antioxidant enzymes. It is suggested that single-nucleotide polymorphisms (SNPs) in the TNF-alpha gene have different TNF-alpha responses. This study aims to evaluate the effect of serum TNF-alpha levels through the interactions between toxic metals and essential elements and how the interactions between the toxic metals and TNF-alpha SNPs (-1031 T > C, -863 C > A, -857 C > T, -308 G > A, -238 G > A) influence serum TNF-alpha levels. METHODS: Blood samples were collected from 455 workers who carried out annual health examinations and multielements determined by inductively coupled plasma mass spectrometry (ICP-MS). TNF-alpha levels were detected by enzyme-linked immunosorbent assay (ELISA). TNF-alpha promoter SNPs were analyzed by specific primer probes using real-time polymerase chain reaction (PCR) methods. RESULTS: Increasing blood Pb, Cd, and As levels were associated with elevated TNF-alpha levels. The interaction between Pb and Cu decreased TNF-alpha levels and so did the interaction between Cd and Se. In the interaction between Pb and SNPs, individuals with AA/AG (-308 G > A) and AA/AG ( 238 G > A) had higher serum TNF-alpha levels. However, lower TNF-alpha levels were noted in those individuals with AA/CA (-863 C > A). In the interaction between As and SNPs, workers with AA/AG (-238 G > A) had synergic effect with As and induced higher serum TNF-alpha levels. CONCLUSIONS: Blood Cu and Se were antagonists of toxic metals (Pb, As, and Cd) through lower serum TNF-alpha levels. Variant types of TNF-alpha SNPs (-308 G > A, -238 G > A) and wild type of -863 CC would be more susceptible to toxic metals. PMID- 29028685 TI - Use of Genetic Algorithm Combinational Single-nucleotide Polymorphisms Could Modify the Association of Blood Lead Levels and Bone Matrix Density. AB - BACKGROUND: Previous studies have not explored the relationship between a single gene and a single disease. Our study aims to investigate the association of multiple genotypes with blood lead levels and bone matrix density (BMD) by using genetic algorithms. METHODS: Our research focused on 506 employees (245 males and 261 females) of a lead battery factory in Taiwan. We collected data on their BMD, blood lead level, and 6 SNPs (ACE, alpha-adducin, Bsm, Tag, Apa, and ALAD); these factors were analyzed using discrete binary particle swarm optimization (DBPSO) and logistic regression analysis. RESULTS: We found no association between blood lead level and bone density, which may be due to the relatively young age of this population (mean age = 45.1 years). However, the genotype that contained both Bsm type bb and ALAD type 1-1 may play an important role in protecting against lower bone density among these employees. CONCLUSIONS: In conclusion, this study found that the Bsm and ALAD genes influence bone density among lead workers. However, the mechanism and exact relationship between these two genes and bone density require further investigation. PMID- 29028686 TI - Interaction Between Catalase Gene Promoter Polymorphisms and Indoor Environmental Exposure in Childhood Allergic Rhinitis. AB - BACKGROUND: Allergic rhinitis (AR) is a highly prevalent chronic inflammatory disease affecting nearly 40% of the children in Taiwan. Genetic susceptibility may interact with specific environmental factors leading to allergic disease development. METHODS: To assess the interactions between catalase gene promoter polymorphisms and environmental factors on the risk of AR, we conducted a case control study in Taiwan. Data on AR and environmental factors were collected from 800 children using the ISSAC questionnaire. The case group consisted of 263 children with AR, and the control group consisted of =537 healthy children. Genotyping was performed for rs1001179 and rs769214 polymorphisms, and environmental exposure was assessed using four indicators including dwelling visible molds, mold odor, moisture on surfaces, and water damage. RESULTS: We found that the presence of visible molds, mold odor, and moisture was associated with AR. An apparent joint effect of the GG genotype and mold odor, compared with the AA and AG combined genotypes and without any exposure indicator (adjusted odds ratio [OR] = 1.95 [95% confidence interval (CI) = 1.20, 3.18]; interaction adjusted odds ratio = 2.59 [95% CI = 1.27, 5.30]), was observed. CONCLUSIONS: Our findings suggest that gene-environment interactions between the catalase polymorphism rs769214 and mold odor may play an important role in childhood AR development. PMID- 29028688 TI - Angioedema Associated With Long-Acting Injectable Paliperidone Palmitate: A Case Report. PMID- 29028687 TI - HYPERREFLECTIVE DEPOSITION IN THE BACKGROUND OF ADVANCED STARGARDT DISEASE. AB - PURPOSE: To describe an unusual manifestation of hyperreflective deposits in the subretinal space in a group of patients with clinically and genetically confirmed Stargardt disease. METHODS: Retrospective review of color fundus, autofluorescence, infrared reflectance, red-free images, and spectral domain optical coherence tomography in 296 clinically diagnosed and genetically confirmed (2 expected disease-causing mutations in ABCA4) patients with Stargardt disease. Full-field electroretinogram (ffERG), medical history, and genotype data (in silico predictions) were further analyzed from the selected cohort. RESULTS: Eight of 296 patients (2.7%) were found to exhibit small crystalline deposits that were detectable on certain imaging modalities, such as color, infrared reflectance and red-free images, but not autofluorescence. The deposits were most prevalent in the superior region of the macula, and spectral domain optical coherence tomography revealed their presence in the subretinal space. All patients presented with these findings at a notably advanced disease stage with abnormal ffERG and a high proportion of highly deleterious ABCA4 alleles. CONCLUSION: Hyperreflective subretinal deposits may be a manifestation of advanced ABCA4 disease, particularly in regions susceptible to disease-related changes, such as lipofuscin accumulation. PMID- 29028689 TI - Effective Switch From Clozapine to Aripiprazole in Treatment-Resistant Schizophrenia and Comorbid Alcohol Use Disorder. PMID- 29028690 TI - Adverse Event Reporting: Harnessing Residents to Improve Patient Safety. AB - OBJECTIVES: Reporting of adverse and near miss events are essential to identify system level targets to improve patient safety. Resident physicians historically report few events despite their role as front-line patient care providers. We sought to evaluate barriers to adverse event reporting in an effort to improve reporting. Our main outcomes were as follows: resident attitudes about event reporting and the frequency of event reporting before and after interventions to address reporting barriers. METHODS: We surveyed first year residents regarding barriers to adverse event reporting and used this input to construct a fishbone diagram listing barriers to reporting. Barriers were addressed, and resident event reporting was compared before and after efforts were made to reduce obstacles to reporting. RESULTS: First year residents (97%) recognized the importance of submitting event reports; however, the majority (85%) had not submitted an event report in the first 6 months of residency. Only 7% of residents specified that they had not witnessed an adverse event in 6 months, whereas one third had witnessed 10 or more events. The main barriers were as follows: lack of knowledge about how to submit events (38%) and lack of time to submit reports (35%). After improving resident education around event reporting and simplifying the reporting process, resident event reporting increased 230% (68 to 154 annual reports, P = 0.025). CONCLUSIONS: We were able to significantly increase resident event reporting by educating residents about adverse events and near misses and addressing the primary barriers to event reporting. Moving forward, we will continue annual resident education about patient safety, focus on improving feedback to residents who submit reports, and empower senior residents to act as role models to junior residents in patient safety initiatives. PMID- 29028691 TI - Job Burnout Reduces Hand Hygiene Compliance Among Nursing Staff. AB - OBJECTIVES: Health professional burnout has been associated with suboptimal care and reduced patient safety. However, the extent to which burnout influences hand hygiene compliance among health professionals has yet to be explored. The aim of the study was to examine whether job burnout reduces hand washing compliance among nursing staff. METHODS: A diary study was conducted. Forty registered nurses working in a general city hospital in Thessaloniki, Greece, completed a questionnaire, while they were monitored for hand hygiene compliance following the World Health Organization protocol for hand hygiene assessment. Burnout was measured using validated items from the Maslach Burnout Inventory. Data were collected from September to October 2015. RESULTS: Multiple regression analysis showed that controlling for years in practice, burnout was negatively associated with hand hygiene compliance (R = 0.322, F(3,36) = 5.704, P < 0.01). Nurses reporting higher levels of burnout were less likely to comply with hand hygiene opportunities (b = - 3.72, 95% confidence interval = -5.94 to -1.51). CONCLUSIONS: This study showed that burnout contributes to suboptimal care by reducing compliance to hand hygiene among nurses. Given the crucial role of hand hygiene compliance for the prevention of in-hospital infections, this study highlights the need for interventions targeting the prevention of burnout among nursing staff. PMID- 29028692 TI - The Relationship of Anxiety, Depression, and Quality of Life in Adults With Left Ventricular Assist Devices. AB - Psychological distress, including anxiety and depression, is commonly reported by patients with implantable left ventricular assist devices (LVADs). Still, the influence of anxiety and depression on global quality of life (QOL) is unknown. Moreover, the empirical data of LVAD patients' QOL is limited to 24 months. This study examined the differences in anxiety, depression, and QOL based on 3 LVAD implant duration groups (<=12, 13-24, and >=25 months). We also examined the influence of anxiety and depression on QOL. An observational cross-sectional study design was employed using self-administered demographics, anxiety, depression, and global QOL questionnaires. A total of 100 patients (mean age 52 +/- 13.3 years) across the United States completed the study. In the 3 implant duration groups, we found no significant differences in anxiety and depression, but the global QOL scores of patients with LVADs >= 13 months were significantly worse than those of patients with LVADs <= 12 months. Also, the correlations between QOL and either anxiety or depression were significant: Pearson's r ranged from -0.44 to -0.65 with all p values <0.0001. Compared with anxiety, depression is a stronger predictor of QOL. Our data showed that when depression is increased by 1 unit, the average QOL decreased by 0.76 units, assuming anxiety is held constant. This study uncovered relationships among anxiety, depression, and QOL in patients with long-term LVADs. Longitudinal research is needed to confirm our findings and explore factors that may contribute to worse QOL, particularly, those patients supported with LVADs beyond 13 months. PMID- 29028693 TI - The Development of Pulmonary Hypertension Results in Decreased Post-Transplant Survival. AB - The effects of pulmonary hypertension (PAH) on survival after heart transplantation are debated, especially for patients with left ventricular assist devices (LVAD). The United Network of Organ Sharing database was retrospectively queried from January 2005 to June 2015 to identify adult patients who underwent heart transplantation. Four groups were defined: patients without PAH, persistent PAH, resolved PAH, and developed PAH between listing and transplant. A total of 15,914 patients underwent heart transplant of which 4,662 (29%) were implanted with an LVAD. Of the total population, 10,872 (68%) had PAH at time of listing and 9,661 (61%) had PAH at time of transplant. Long-term survival was significantly worse for patients with an LVAD than for those without who had PAH at time of transplant (p = 0.010). Kaplan-Meier analysis showed a trend of worse long-term survival for patients with an LVAD who developed PAH by the time of transplant but improved survival for patients with resolved PAH while on LVAD therapy (p = 0.052). PAH at time of transplant results in worse long-term survival for patients with an LVAD. Furthermore, the development of PAH while on LVAD therapy may negatively impact long-term post-transplant survival, while resolution of PAH improves long-term survival. PMID- 29028694 TI - Individualized Biventricular Epicardial Augmentation Technology in a Drug-Induced Porcine Failing Heart Model. AB - For treatment of advanced heart failure, current strategies include cardiac transplantation or blood-contacting pump technology associated with complications, including stroke and bleeding. This study investigated an individualized biventricular epicardial augmentation technology in a drug-induced porcine failing heart model. A total of 11 pigs were used, for the assessment of hemodynamics and cardiac function under various conditions of support pressures and support durations (n = 4), to assess device positioning and function by in vivo computer tomographic imaging (n = 3) and to investigate a minimally invasive implantation on the beating heart (n = 4). Support pressures of 20-80 mm Hg gradually augmented cardiac function parameters in this animal model as indicated by increased left ventricular stroke volume, end-systolic pressures, and decreased end-diastolic pressures. Strong evidence was found regarding the necessity of mechanical synchronization of support end with the isovolumetric relaxation phase of the heart. In addition, the customized, self-expandable implant enabled a marker-guided minimally invasive implantation through a 4 cm skin incision using fluoroscopy. Correct positioning was confirmed in computer tomographic images. Continued long-term survival investigations will deliver preclinical evidence for further development of this concept. PMID- 29028695 TI - National Certification in Critical Care Echocardiography: Its Time Has Come. PMID- 29028697 TI - Machine Learning and Sepsis: On the Road to Revolution. PMID- 29028696 TI - Brain Oxygen Optimization in Severe Traumatic Brain Injury Phase-II: A Phase II Randomized Trial. AB - OBJECTIVES: A relationship between reduced brain tissue oxygenation and poor outcome following severe traumatic brain injury has been reported in observational studies. We designed a Phase II trial to assess whether a neurocritical care management protocol could improve brain tissue oxygenation levels in patients with severe traumatic brain injury and the feasibility of a Phase III efficacy study. DESIGN: Randomized prospective clinical trial. SETTING: Ten ICUs in the United States. PATIENTS: One hundred nineteen severe traumatic brain injury patients. INTERVENTIONS: Patients were randomized to treatment protocol based on intracranial pressure plus brain tissue oxygenation monitoring versus intracranial pressure monitoring alone. Brain tissue oxygenation data were recorded in the intracranial pressure -only group in blinded fashion. Tiered interventions in each arm were specified and impact on intracranial pressure and brain tissue oxygenation measured. Monitors were removed if values were normal for 48 hours consecutively, or after 5 days. Outcome was measured at 6 months using the Glasgow Outcome Scale-Extended. MEASUREMENTS AND MAIN RESULTS: A management protocol based on brain tissue oxygenation and intracranial pressure monitoring reduced the proportion of time with brain tissue hypoxia after severe traumatic brain injury (0.45 in intracranial pressure-only group and 0.16 in intracranial pressure plus brain tissue oxygenation group; p < 0.0001). Intracranial pressure control was similar in both groups. Safety and feasibility of the tiered treatment protocol were confirmed. There were no procedure-related complications. Treatment of secondary injury after severe traumatic brain injury based on brain tissue oxygenation and intracranial pressure values was consistent with reduced mortality and increased proportions of patients with good recovery compared with intracranial pressure-only management; however, the study was not powered for clinical efficacy. CONCLUSIONS: Management of severe traumatic brain injury informed by multimodal intracranial pressure and brain tissue oxygenation monitoring reduced brain tissue hypoxia with a trend toward lower mortality and more favorable outcomes than intracranial pressure-only treatment. A Phase III randomized trial to assess impact on neurologic outcome of intracranial pressure plus brain tissue oxygenation-directed treatment of severe traumatic brain injury is warranted. PMID- 29028698 TI - Quick Sequential Organ Failure Assessment: Illness Severity Indicator, Clinical Decision Support Tool, or Both? PMID- 29028699 TI - Pediatric Acute Respiratory Distress Syndrome in Asia: None of Us Is as Smart as All of Us. PMID- 29028700 TI - Victims or Culprits, B Cells May Serve as Markers for Mortality Risk and Targeted Therapy in Sepsis. PMID- 29028701 TI - Catatonia, Delirium, and Critical Illness: A Diagnostic Statistical Manual 5 Mystery Partially Disentangled. PMID- 29028702 TI - Just Because Things Are Not Different, Does Not Mean They Are the Same: Biomarker Patterns in Acute Respiratory Distress Syndrome. PMID- 29028703 TI - Sepsis in the Critically Ill-Does Gender Matter? PMID- 29028705 TI - Can We Boost Our Ability to Monitor Severe Brain Trauma? PMID- 29028704 TI - Aspirin for Sepsis Prophylaxis: An Ounce of Prevention? PMID- 29028706 TI - Lost in Translation, Found in Exploration: Understanding Why Interpreters Might Alter Communication. PMID- 29028707 TI - ICU-Acquired Weakness, Chronic Critical Illness, and the Persistent Inflammation Immunosuppression and Catabolism Syndrome. PMID- 29028708 TI - The authors reply. PMID- 29028709 TI - Ultrasound in Confirming Central Catheter Position: (Almost) Ready for Prime Time. PMID- 29028710 TI - The authors reply. PMID- 29028711 TI - Does Regulatory Really Intersect Reality in Glucose Measurement in the ICU? Is the Issue Testing Method Accuracy or Specimen Type? PMID- 29028712 TI - The authors reply. PMID- 29028713 TI - Lung Ultrasonography as the First Confirmation Method for Central Venous Catheterization: How Far Are We? PMID- 29028714 TI - The authors reply. PMID- 29028715 TI - The Effects of Afebrile Characteristic on Patients With Suspected Septic Shock: Several Facts Need to Be Noticed. PMID- 29028716 TI - The author replies. PMID- 29028717 TI - Comparing the ICU-7 to the Delirium Rating Scale. PMID- 29028718 TI - The author replies. PMID- 29028719 TI - Cardiac Function Following Traumatic Brain Injury. PMID- 29028721 TI - An Overlook of New-Onset Atrial Fibrillation in the Critically Ill Using Automated Detection: Have We Over Looked at It? PMID- 29028720 TI - The authors reply. PMID- 29028722 TI - The authors reply. PMID- 29028723 TI - Does Driving Pressure Matter in Pediatric Acute Respiratory Distress Syndrome? Strain to Find the Answer. PMID- 29028724 TI - The authors reply. PMID- 29028725 TI - Are Women Inferior Leaders in Emergency Situations? An Appeal for a More Careful Interpretation of Research Results. PMID- 29028726 TI - The authors reply. PMID- 29028727 TI - Smartphones to Assess Cardiac Function: Novelty Blindness or Fresh Perspectives? PMID- 29028728 TI - The authors reply. PMID- 29028729 TI - Therapeutic Hypothermia for Acute Respiratory Distress Syndrome. PMID- 29028730 TI - The author replies. PMID- 29028731 TI - When, Who, and How is Elevated Mean Airway Pressure and Central Venous Pressure in the First Day of Mechanical Ventilation a Sign? PMID- 29028732 TI - The authors reply. PMID- 29028733 TI - The Use of Tidal Volume Challenge Test in Critically Ill Patients: Caution Needed. PMID- 29028734 TI - The authors reply. PMID- 29028735 TI - Inflammatory Bowel Disease, the Hospital Anxiety and Depression Scale and Criterion Contamination. PMID- 29028736 TI - SUPERFICIAL AND DEEP CAPILLARY ISCHEMIA AS A PRESENTING SIGN OF RETINAL VASCULOPATHY WITH CEREBRAL LEUKOENCEPHALOPATHY AND SYSTEMIC MANIFESTATIONS. AB - PURPOSE: The aim of this study was to investigate the presenting sign of retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations, a rare autosomal dominant condition caused by mutations in the TREX1 gene, and to explore the potential efficacy of bevacizumab in preventing capillary occlusions. METHODS: Observational case report with the use of ultra-widefield fluorescein angiography, optical coherence tomography, and optical coherence tomography angiography. RESULTS: A 31-year-old man with a family history of retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations presented with a scotoma in his left eye. The visual acuity was 20/20 in both eyes, and his examination was notable for scattered cotton wool spots in the retina of both eyes as well as an area of paracentral acute middle maculopathy in the left eye. Ultra-widefield fluorescein angiography revealed peripheral capillary nonperfusion and vascular leakage corresponding to the cotton wool spots. Spectral domain optical coherence tomography and optical coherence tomography angiography confirmed the presence and distribution of superficial capillary plexus and deep capillary plexus ischemia. Neurologic examination and imaging were normal. A trial of monthly intravitreal bevacizumab injections to the left eye over 6 months resulted in diminished capillary leakage. CONCLUSION: Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations is a rare genetic condition manifested most commonly by cerebral and retinal ischemia. This retinal vasculopathy leads to occlusions of small caliber retinal vessels in the superficial plexus and deep plexus with resulting cotton wool spots and paracentral acute middle maculopathy, respectively. Recognition of the retinal findings by ophthalmologists and neurologists may avoid unnecessary brain biopsies in diagnosing this rare disorder. PMID- 29028737 TI - Resting Pd/Pa and haemodynamic relevance of coronary stenosis as evaluated by fractional flow reserve. AB - BACKGROUND: Fractional flow reserve (FFR) currently represents the gold standard in the evaluation of the haemodynamic relevance of coronary stenoses. However, both intracoronary and intravenous adenosine may be tolerated poorly by some patients. Therefore, considerable interest had been focused in the last few years on new adenosine-free indexes to define the haemodynamic relevance of coronary stenoses. So far, few data have been reported on resting Pd/Pa and its correlation with FFR as evaluated with high-dose intracoronary adenosine administration, which is the aim of the current study. MATERIALS AND METHODS: FFR was assessed in 120 patients with 137 intermediate lesions during cardiac catheterization by a pressure-recording guidewire (PrimeWire). FFR was calculated as the ratio of the distal coronary pressure to the aortic pressure at hyperaemia. Intracoronary doses of adenosine were administered up to 720 MUg as intracoronary boli. Exclusion criteria were as follows: (a) allergy to adenosine; (b) baseline bradycardia (heart rate <50 bpm); (c) hypotension (blood pressure <90 mmHg); and (d) refusal to provide signed informed consent. RESULTS: High doses of intracoronary adenosine were well tolerated, with no major side effects. Increasing doses up to 720 MUg progressively decreased FFR values and increased the percentage of patients showing an FFR less than 0.80. Resting Pd/Pa showed good accuracy in the identification of patients with significant FFR values (<0.80) [area under the curve=0.9 (0.84-0.96), P<0.0001]. Using receiver operating characteristic curves, we identified a threshold less than 0.93 as the best accurate cut-off value in the prediction of a positive FFR value. A value up to 0.88 was associated with a 100% positive predictive value, whereas a value of at least 0.95 was associated with a 95% negative predictive value. CONCLUSION: This study showed that in intermediate lesions, resting Pd/Pa was related linearly to FFR. We identified 0.93 as the best cut-off value in the prediction of haemodynamically significant coronary stenosis as evaluated by FFR. However, cut-off values of 0.88 and 0.95 could provide the maximal predictive positive and negative values, suggesting the additional use of FFR only in patients with resting values within this range. PMID- 29028738 TI - Multiple systemic embolic events in a patient undergoing primary percutaneous coronary intervention: drop foot and syncope as an unusual presentation of subacute ST-elevation myocardial infarction. PMID- 29028739 TI - Association of the SYNTAX Score II with cardiac rupture in patients with ST segment elevation myocardial infarction undergoing a primary percutaneous coronary intervention. AB - BACKGROUND: Despite advances in reperfusion strategies, medical therapy, and emergent surgery, cardiac rupture (CR) is still a major lethal complication. Numerous parameters have been found to be associated with CR development after a primary percutaneous coronary intervention (pPCI). SYNTAX Score (SS) and SYNTAX Score II (SSII) have been studied in ST-segment elevation myocardial infarction (STEMI) patients, and higher scores have been associated with higher mortality. However, the relationship between CR and SSII is unclear. This study investigates the possible relationship between CR and SS, SSII in STEMI patients treated with pPCI. PATIENTS AND METHODS: We enrolled 1663 consecutive STEMI patients treated with pPCI, who were divided into two groups according to CR development and compared with each other. Patients were further stratified into the three groups according to their SSII values. RESULTS: In this study, 33 (1.98%) patients developed CR. Both SS and SSII of those with CR were significantly higher than those without (19.27+/-4.0 vs. 16.40+/-4.55; P<0.001 and 49.40+/-16.54 vs. 30.92+/-11.80; P<0.001, respectively). It was also observed that CR increased gradually according to increasing SSII tertiles. SSII was found to be an independent predictor for CR (odds ratio=1.043, 95% confidence interval: 1.012 1.074; P=0.006). In the long-term follow-up, all-cause mortality was significantly higher in patients with CR than those without (60.6 vs. 8.8%; P<0.001). CONCLUSION: This study shows that SSII is an independent predictor for CR. Furthermore, patients with CR were associated with a poor prognosis. Closer follow-up of patients with high SSII may be useful in the early detection and treatment of this fatal complication. PMID- 29028740 TI - Coronary vasospasm: a silent enemy in orthotopic heart transplant. PMID- 29028741 TI - Fundamental Epidemiology Terminology and Measures: It Really Is All in the Name. AB - Epidemiology is the study of how disease is distributed in populations and the factors that influence or determine this distribution. Clinical epidemiology denotes the application of epidemiologic methods to questions relevant to patient care and provides a highly useful set of principles and methods for the design and conduct of quantitative clinical research. Validly analyzing, correctly reporting, and successfully interpreting the findings of a clinical research study often require an understanding of the epidemiologic terms and measures that describe the patterns of association between the exposure of interest (treatment or intervention) and a health outcome (disease). This statistical tutorial thus discusses selected fundamental epidemiologic concepts and terminology that are applicable to clinical research. Incidence is the occurrence of a health outcome during a specific time period. Prevalence is the existence of a health outcome during a specific time period. The relative risk can be defined as the probability of the outcome of interest (eg, developing the disease) among exposed individuals compared to the probability of the same event in nonexposed individuals. The odds ratio is a measure of risk that compares the frequency of exposure to a putative causal factor in the individuals with the health outcome (cases) versus those individuals without the health outcome (controls). Factors that are associated with both the exposure and the outcome of interest need to be considered to avoid bias in your estimate of risk. Because it takes into consideration the contribution of extraneous variables (confounders), the adjusted odds ratio provides a more valid estimation of the association between the exposure and the health outcome and thus is the preferably reported measure. The odds ratio closely approximates the risk ratio in a cohort study or a randomized controlled trial when the outcome of interest does not occur frequently (<10%). The editors, reviewers, authors, and readers of journal articles should be aware of and make the key distinction between the absolute risk reduction and the relative risk reduction. In assessing the findings of a clinical study, the investigators, reviewers, and readers must determine if the findings are not only statistically significant, but also clinically meaningful. Furthermore, in deciding on the merits of a new medication or other therapeutic intervention, the clinician must balance the benefits versus the adverse effects in individual patients. The number needed to treat and the number needed to harm can provide this needed additional insight and perspective. PMID- 29028742 TI - Intraoperative Esmolol as an Adjunct for Perioperative Opioid and Postoperative Pain Reduction: A Systematic Review, Meta-analysis, and Meta-regression. AB - BACKGROUND: Esmolol is an ultrashort beta-1 receptor antagonist. Recent studies suggest a role for esmolol in pain response modulation. The authors performed a meta-analysis to determine if the intraoperative use of esmolol reduces opioid consumption or pain scores. METHODS: PubMed, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, pubget, and Google Scholar were searched. Studies were included if they were randomized, placebo- or opioid-controlled trials written in English, and performed on patients 18 years of age or older. For comparison of opioid use, included studies tracked opioid consumption intraoperatively and/or in the postanesthesia care unit. Pain score comparisons were performed during the first hour after surgery. RESULTS: Seventy three studies were identified, 23 were included in the systematic review, and 19 were eligible for 1 or more comparisons. In 433 patients from 7 trials, intraoperative esmolol decreased intraoperative opioid consumption (Standard Mean Difference [SMD], -1.60; 95% confidence interval [CI], -2.25 to -0.96; P <= .001). In 659 patients from 12 trials, intraoperative esmolol decreased postanesthesia care unit opioid consumption (SMD, -1.21; 95% CI, -1.66 to -0.77; P <= .001). In 688 patients from 11 trials, there was insufficient evidence of change in postoperative 1 hour pain scores (SMD, -0.60; 95% CI, -1.44 to 0.24; P = .163). CONCLUSIONS: This meta-analysis demonstrates that intraoperative esmolol use reduces both intraoperative and postoperative opioid consumption, with no change in postoperative pain scores. PMID- 29028743 TI - Standardized Care Versus Precision Medicine: Do We Really Need to Wait for Point of-Care Testing? PMID- 29028744 TI - In Response: Subcellular Energetics and Metabolism: A Cross-Species Framework. PMID- 29028745 TI - In Response: Standardized Care Versus Precision Medicine; Do We Really Need to Wait for Point-of-Care Testing? PMID- 29028746 TI - Subcellular Energetics and Metabolism: A Cross-Species Framework. PMID- 29028748 TI - Problematic use of prescribed opioids for chronic noncancer pain-no scarcity of data outside the United States. PMID- 29028747 TI - Nervous system delivery of antilysophosphatidic acid antibody by nasal application attenuates mechanical allodynia after traumatic brain injury in rats. AB - Lysophosphatidic acid (LPA) is a bioactive lipid that impacts neurological outcomes after neurotrauma by inhibiting neuroregeneration, promoting inflammation, and contributing to behavioral deficits. Blocking LPA signaling with a novel anti-LPA monoclonal antibody (mAb) is neuroprotective after traumatic brain injury (TBI) if given to injured animals whose blood-brain barrier (BBB) has been compromised. It is hypothesized that the anti-LPA mAb could improve chronic pain initiated by TBI. However, poor brain penetration after systemic application of the antibody makes access to the central nervous system (CNS) problematic in situations where the BBB is intact. Our experiments investigated whether intranasal delivery of the anti-LPA mAb could bypass the BBB, allowing for direct entry of the antibody to certain areas of the CNS. When the humanized anti-LPA mAb, LT3114, was intranasally applied to injured rats within 30 minutes after mild TBI using the central lateral percussion model, enzyme-linked immunospecific assay and immunohistochemistry demonstrated antibody uptake to several areas in the CNS, including the area of cortical injury, the corpus callosum, cerebellum, and the subventricular region. Compared with control rats that received LT3114 but no TBI, TBI rats demonstrated significantly higher concentrations of intranasally administered LT3114 antibody in some tissues. In behavioral studies, a significant attenuation of mechanical allodynia after TBI was observed in the anti-LPA treatment group (P = 0.0079), when compared with vehicle controls within 14 days after TBI. These results suggest that intranasal application of the anti-LPA antibody directly accesses CNS sites involved in TBI related pain and that this access attenuates pain sequelae to the neurotrauma. PMID- 29028749 TI - Reply. PMID- 29028750 TI - Injuries to the Female Athlete in 2017: Part I: General Considerations, Concussions, Stress Fractures, and the Female Athlete Triad. PMID- 29028751 TI - Injuries to the Female Athlete in 2017: Part II: Upper and Lower-Extremity Injuries. PMID- 29028752 TI - Point-Counterpoint: Cost-Effectiveness Analysis in Medical Care and the Issue of Economic Model Transparency. PMID- 29028753 TI - Can Economic Model Transparency Improve Provider Interpretation of Cost effectiveness Analysis? Evaluating Tradeoffs Presented by the Second Panel on Cost-effectiveness in Health and Medicine. AB - The Second Panel on Cost-Effectiveness in Health and Medicine convened on December 7, 2016 at the National Academy of Medicine to disseminate their recommendations for conduct, methodological practices, and reporting of cost effectiveness analyses (CEAs). Following its summary, panel proceedings included lengthy discussions including the field's struggle to disseminate findings efficiently through peer-reviewed literature to target audiences. With editors of several medical and outcomes research journals in attendance, there was consensus that findings of cost-effectiveness analyses do not effectively reach other researchers or health care providers. The audience members suggested several solutions including providing additional training to clinicians in cost effectiveness research and requiring that cost-effectiveness models are made publicly available. However, there remains the questions of whether making economic modelers' work open-access through journals is fair under the defense that these models remain one's own intellectual property, or whether journals can properly manage the peer-review process specifically for cost-effectiveness analyses. In this article, we elaborate on these issues and provide some suggested solutions that may increase the dissemination and application of cost effectiveness literature to reach its intended audiences and ultimately benefit the patient. Ultimately, it is our combined view as economic modelers and clinicians that cost-effectiveness results need to reach the clinician to improve the efficiency of medical practice, but that open-access models do not improve clinician access or interpretation of the economics of medicine. PMID- 29028754 TI - Can Economic Model Transparency Improve Provider Interpretation of Cost Effectiveness Analysis? A Response. AB - To enhance the credibility and the value of health economic analyses, we argue that the computer model source code underlying these analyses should be made publicly available. Only with open publication is it possible for others to assess whether alternative assumptions, beyond those examined by the model authors, alter the model's findings. Because reproducibility is critical for scientific acceptance and because computation increasingly permeates scientific inquiry, other fields have moved toward open publication of computer models, and health economics should avoid falling behind. Making source code available shines a light on these otherwise black boxes and facilitates their complete evaluation and understandability. The preceding commentary makes 2 arguments against open publication. It claims first that open publication would undermine intellectual property rights and discourage work in this field. We respond that the impact on intellectual property would be minimal, and that open publication could even increase model value. The second argument against open publication is the possibility of model misuse. If anything, however, open publication would reduce this risk by making the model implementation completely transparent. We argue finally that open publication of models would have ancillary benefits by making the research more amenable for adaptation and innovation. Moving toward open publication will present challenges, but we believe that the benefits of increased scientific credibility and utility, particularly for health policy and clinical practice decisions, will certainly outweigh the harms. PMID- 29028755 TI - Finding Resolution for the Responsible Transparency of Economic Models in Health and Medicine. AB - The Second Panel on Cost-Effectiveness in Health and Medicine recommendations for conduct, methodological practices, and reporting of cost-effectiveness analyses has a number of questions unanswered with respect to the implementation of transparent, open source code interface for economic models. The possibility of making economic model source code could be positive and progressive for the field; however, several unintended consequences of this system should be first considered before complete implementation of this model. First, there is the concern regarding intellectual property rights that modelers have to their analyses. Second, the open source code could make analyses more accessible to inexperienced modelers, leading to inaccurate or misinterpreted results. We propose several resolutions to these concerns. The field should establish a licensing system of open source code such that the model originators maintain control of the code use and grant permissions to other investigators who wish to use it. The field should also be more forthcoming towards the teaching of cost effectiveness analysis in medical and health services education so that providers and other professionals are familiar with economic modeling and able to conduct analyses with open source code. These types of unintended consequences need to be fully considered before the field's preparedness to move forward into an era of model transparency with open source code. PMID- 29028756 TI - Financial Performance of Hospitals in the Mississippi Delta Region Under the Hospital Readmissions Reduction Program and Hospital Value-based Purchasing Program. AB - BACKGROUND: Previous studies showed that the Hospital Readmissions Reduction Program (HRRP) and the Hospital Value-based Purchasing Program (HVBP) disproportionately penalized hospitals caring for the poor. The Mississippi Delta Region (Delta Region) is among the most socioeconomically disadvantaged areas in the United States. The financial performance of hospitals in the Delta Region under both HRRP and HVBP remains unclear. OBJECTIVE: To compare the differences in financial performance under both HRRP and HVBP between hospitals in the Delta Region (Delta hospitals) and others in the nation (non-Delta hospitals). RESEARCH DESIGN: We used a 7-year panel dataset and applied difference-in-difference models to examine operating and total margin between Delta and non-Delta hospitals in 3 time periods: preperiod (2008-2010); postperiod 1 (2011-2012); and postperiod 2 (2013-2014). RESULTS: The Delta hospitals had a 0.89% and 4.24% reduction in operating margin in postperiods 1 and 2, respectively, whereas the non-Delta hospitals had 1.13% and 1% increases in operating margin in postperiods 1 and 2, respectively. The disparity in total margins also widened as Delta hospitals had a 1.98% increase in postperiod 1, but a 0.30% reduction in postperiod 2, whereas non-Delta hospitals had 1.27% and 2.28% increases in postperiods 1 and 2, respectively. CONCLUSIONS: The gap in financial performance between Delta and non-Delta hospitals widened following the implementation of HRRP and HVBP. Policy makers should modify these 2 programs to ensure that resources are not moved from the communities that need them most. PMID- 29028757 TI - Patient Experience-based Value Sets: Are They Stable? AB - BACKGROUND: Although societal preference weights are desirable to inform resource allocation decision-making, patient experienced health state-based value sets can be useful for clinical decision-making, but context may matter. OBJECTIVE: To estimate EQ-5D value sets using visual analog scale (VAS) ratings for patients undergoing knee replacement surgery and compare the estimates before and after surgery. METHODS: We used the Patient Reported Outcome Measures data collected by the UK National Health Service on patients undergoing knee replacement from 2009 to 2012. Generalized least squares regression models were used to derive value sets based on the EQ-5D-3 level using a development sample before and after surgery, and model performance was examined using a validation sample. RESULTS: A total of 90,450 preoperative and postoperative valuations were included. For preoperative valuations, the largest decrement in VAS values was associated with the dimension of anxiety/depression, followed by self-care, mobility, usual activities, and pain/discomfort. However, pain/discomfort had a greater impact on VAS value decrement in postoperative valuations. Compared with preoperative health problems, postsurgical health problems were associated with larger value decrements, with significant differences in several levels and dimensions, including level 2 of mobility, level 2/3 of usual activities, level 3 of pain/discomfort, and level 3 of anxiety/depression. Similar results were observed across subgroups stratified by age and sex. CONCLUSIONS: Findings suggest patient experience-based value sets are not stable (ie, context such as timing matters). However, the knowledge that lower values are assigned to health states postsurgery compared with presurgery may be useful for the patient-doctor decision-making process. PMID- 29028758 TI - MR Neurography of Lumbosacral Plexus in Failed Back Surgery Syndrome. AB - STUDY DESIGN: Retrospective clinical case series. OBJECTIVE: To study the role of MRN of lumbosacral plexus in management of patients with FBSS. SUMMARY OF BACKGROUND DATA: Failed back surgery syndrome (FBSS) is one of the major problems in health care, affecting up to 40% of patients following spine surgery. To date, no imaging modality has been used to effectively classify nerve compression, since nerve injuries are challenging to detect on conventional lumbar spine MRI. To our knowledge, no previous studies have addressed the use of MR Neurography (MRN) in FBSS or compared it to lumbar spine MRI. METHODS: From 203 consecutive 3T MRN studies of lumbosacral plexus in one year, 12% (25/203) presented as FBSS. Demographic data, number of previous lumbar MRIs and their findings, MRN findings, interval between MRI and MRN, pre-and post-MRN diagnosis, pain levels, and treatments were recorded. Changes in diagnosis, treatment and outcomes following MRN were determined. RESULTS: The final sample of 25 patients had a mean age 62 +/- 15 and male to female ratio 1:1.08. 88% (22/25) had previous lumbar MRI, of which 27% had 3 or more. Most common imaging findings were neuroforaminal stenosis 22.6% (7/31) on MRI and neuropathy 22.9% (19/83) on MRN. Mean interval between MRI and MRN was 13.9 +/- 28.3 months. Lumbar MRIs were inconclusive in 36% (8/22). MRN detected 63% (52/83) more findings and changed the diagnosis and treatment in 12% and 48% of FBSS cases, respectively. Favorable outcomes were recorded in 40-67% of patients following MRN guided treatments. CONCLUSION: FBSS is a complex problem and MRN of lumbosacral plexus impacts its management by better directing source of symptoms. LEVEL OF EVIDENCE: 4. PMID- 29028759 TI - Which Domains of the ODI Best Predict Change in Physical Function in Patients After Surgery for Degenerative Lumbar Spondylolisthesis? AB - STUDY DESIGN: A retrospective review. OBJECTIVE: The purpose of this study is to determine the differential improvement of the various individual items of the Oswestry Disability Index (ODI) and to determine their relationship to other measures of Health Related Quality of Life (HRQOL). SUMMARY OF BACKGROUND DATA: The ODI is an easily scored, common, 10-item questionnaire about symptoms relevant to lumbar spine pathology. It is not clear if all of the items can be reliably applied to spine surgery. The purpose of this study is to determine the differential improvement of the various individual items of the ODI and to determine their relationship to other measures of HRQOL. METHODS: Analysis of a prospective registry of patients treated at an academic medical center was undertaken. At baseline, standardized outcome measures including ODI and SF12 PCS were collected on all patients undergoing elective fusion surgery for degenerative spondylolisthesis. Multiple linear regressions were performed using change in SF12 PCS as the dependent variable and change in ODI components as the independent variables. RESULTS: Baseline and 1-year follow-up data were collected on 196 patients (mean age 60.4 years). There were statistically significant differences in improvement among ODI items. Surprisingly, the most improvement after surgery was noted in the standing, sex life, and social life domains. The least improvement was noted in the personal care, sleeping, and sitting domains. Linear regression for change in ODI components versus change in SF-12 PCS revealed a significant correlation (R = 0.353, P <= 0.001). The only retained domains in the final model were change in lifting, standing, and traveling as predictors for DeltaPCS. CONCLUSION: All domains of the ODI do not improve equally after surgery for degenerative spondylolisthesis. Some of the domains that improve most (e.g., sex life) have no discernible relationship to the known pathophysiology of degenerative spondylolisthesis. Based upon these results, we conclude that the item bank and composite scoring of the ODI are inappropriate for evaluating quality of life in studies of surgically treated degenerative spondylolisthesis patients. LEVEL OF EVIDENCE: 3. PMID- 29028760 TI - The Impact of Metastatic Spinal Tumor Location on 30-Day Perioperative Mortality and Morbidity After Surgical Decompression. AB - STUDY DESIGN: A retrospective cohort study from 2011 to 2014 was performed using the American College of Surgeons National Surgical Quality Improvement Program database. OBJECTIVE: The purpose of this study was to assess the impact of tumor location in the cervical, thoracic, or lumbosacral spine on 30-day perioperative mortality and morbidity after surgical decompression of metastatic extradural spinal tumors. SUMMARY OF BACKGROUND DATA: Operative treatment of metastatic spinal tumors involves extensive procedures that are associated with significant complication rates and healthcare costs. Past studies have examined various risk factors for poor clinical outcomes after surgical decompression procedures for spinal tumors, but few studies have specifically investigated the impact of tumor location on perioperative mortality and morbidity. METHODS: We identified 2238 patients in the American College of Surgeons National Surgical Quality Improvement Program database who underwent laminectomy for excision of metastatic extradural tumors in the cervical, thoracic, or lumbosacral spine. Baseline patient characteristics were collected from the database. Univariate and multivariate regression analyses were performed to examine the association between spinal tumor location and 30-day perioperative mortality and morbidity. RESULTS: On univariate analysis, cervical spinal tumors were associated with the highest rate of pulmonary complications. Multivariate regression analysis demonstrated that cervical spinal tumors had the highest odds of multiple perioperative complications. However, thoracic spinal tumors were associated with the highest risk of intra- or postoperative blood transfusion. In contrast, patients with metastatic tumors in the lumbosacral spine had lower odds of perioperative mortality, pulmonary complications, and sepsis. CONCLUSION: Tumor location is an independent risk factor for perioperative mortality and morbidity after surgical decompression of metastatic spinal tumors. The addition of tumor location to existing prognostic scoring systems may help to improve their predictive accuracy. LEVEL OF EVIDENCE: 3. PMID- 29028761 TI - The Value of 24/7 In-House ICU Staffing 24/7 Intensivist in the ICU. PMID- 29028762 TI - Intermittent Versus Continuous and Intermittent Medications for Pain and Sedation After Pediatric Cardiothoracic Surgery; A Randomized Controlled Trial. AB - OBJECTIVES: Compare continuous infusions of morphine and midazolam in addition to intermittent doses with an intermittent only strategy for pain and sedation after pediatric cardiac surgery. DESIGN: Randomized controlled trial. SETTING: Advocate Children's Hospital, Oak Lawn, IL. PATIENTS: Sixty patients 3 months to 4 years old with early extubation after pediatric cardiac surgery. INTERVENTIONS: Patients received a continuous infusion of morphine and midazolam or placebo for 24 hours. Both groups received intermittent morphine and midazolam doses as needed. MEASUREMENTS AND MAIN RESULTS: Gender, age, bypass time, and surgical complexity were not different between groups. Scheduled ketorolac and acetaminophen were used in both groups and were not associated with adverse events. The mean, median, and maximum Faces, Legs, Activity, Cry, And Consolability score were not different between groups. There was no significant difference in number of intermittent doses received between groups. The total morphine dose was higher in the continuous/intermittent group (0.90 vs 0.23 mg/kg; p < 0.01). The total midazolam dose was also higher in the continuous/intermittent group (0.90 vs 0.18 mg/kg; p < 0.01). The hospital length of stay was longer in the continuous/intermittent group (8.4 vs 4.9 d; p = 0.04). CONCLUSIONS: Pain was not better controlled with the addition of continuous infusions of morphine and midazolam when compared with intermittent dosing only. Use of continuous infusions resulted in a significantly higher total dosage of these medications and a longer length of stay. PMID- 29028763 TI - Effects of Hyperoxia During Resuscitation From Hemorrhagic Shock in Swine With Preexisting Coronary Artery Disease. AB - OBJECTIVES: Investigation of the effects of hyperoxia during resuscitation from hemorrhagic shock in swine with preexisting coronary artery disease. DESIGN: Prospective, controlled, randomized trial. SETTING: University animal research laboratory. SUBJECTS: Nineteen hypercholesterolemic pigs with preexisting coronary artery disease. INTERVENTIONS: Anesthetized, mechanically ventilated, and surgically instrumented pigs underwent 3 hours of hemorrhagic shock (removal of 30% of the calculated blood volume and subsequent titration of mean arterial blood pressure ~40 mm Hg). Postshock resuscitation (48 hr) comprised retransfusion of shed blood, crystalloids (balanced electrolyte solution), and norepinephrine support. Pigs were randomly assigned to "control" (FIO2 0.3, adjusted for arterial oxygen saturation >= 90%) and "hyperoxia" (FIO2 1.0 for 24 hr) groups. MEASUREMENTS AND MAIN RESULTS: Before, at the end of shock and every 12 hours of resuscitation, datasets comprising hemodynamics, calorimetry, blood gases, cytokines, and cardiac and renal function were recorded. Postmortem, organs were sampled for immunohistochemistry, western blotting, and mitochondrial high-resolution respirometry. Survival rates were 50% and 89% in the control and hyperoxia groups, respectively (p = 0.077). Apart from higher relaxation constant tau at 24 hours, hyperoxia did not affect cardiac function. However, troponin values were lower (2.2 [0.9-6.2] vs 6.9 [4.8-9.8] ng/mL; p < 0.05) at the end of the experiment. Furthermore, hyperoxia decreased cardiac 3-nitrotyrosine formation and increased inducible nitric oxide synthase expression. Plasma creatinine values were lower in the hyperoxia group during resuscitation coinciding with significantly improved renal mitochondrial respiratory capacity and lower 3-nitrotyrosine formation. CONCLUSIONS: Hyperoxia during resuscitation from hemorrhagic shock in swine with preexisting coronary artery disease reduced renal dysfunction and cardiac injury, potentially resulting in improved survival, most likely due to increased mitochondrial respiratory capacity and decreased oxidative and nitrosative stress. Compared with our previous study, the present results suggest a higher benefit of hyperoxia in comorbid swine due to an increased susceptibility to hemorrhagic shock. PMID- 29028764 TI - The Prognostic Value of MRI in Moderate and Severe Traumatic Brain Injury: A Systematic Review and Meta-Analysis. AB - OBJECTIVES: Traumatic brain injury is a major cause of death and disability, yet many predictors of outcome are not precise enough to guide initial clinical decision-making. Although increasingly used in the early phase following traumatic brain injury, the prognostic utility of MRI remains uncertain. We thus undertook a systematic review and meta-analysis of studies evaluating the predictive value of acute MRI lesion patterns for discriminating clinical outcome in traumatic brain injury. DATA SOURCES: MEDLINE, EMBASE, BIOSIS, and CENTRAL from inception to November 2015. STUDY SELECTION: Studies of adults who had MRI in the acute phase following moderate or severe traumatic brain injury. Our primary outcomes were all-cause mortality and the Glasgow Outcome Scale. DATA EXTRACTION: Two authors independently performed study selection and data extraction. We calculated pooled effect estimates with a random effects model, evaluated the risk of bias using a modified version of Quality in Prognostic Studies and determined the strength of evidence with the Grading of Recommendations, Assessment, Development, and Evaluation. DATA SYNTHESIS: We included 58 eligible studies, of which 27 (n = 1,652) contributed data to meta analysis. Brainstem lesions were associated with all-cause mortality (risk ratio, 1.78; 95% CI, 1.01-3.15; I = 43%) and unfavorable Glasgow Outcome Scale (risk ratio, 2.49; 95% CI, 1.72-3.58; I = 81%) at greater than or equal to 6 months. Diffuse axonal injury patterns were associated with an increased risk of unfavorable Glasgow Outcome Scale (risk ratio, 2.46; 95% CI, 1.06-5.69; I = 74%). MRI scores based on lesion depth demonstrated increasing risk of unfavorable neurologic outcome as more caudal structures were affected. Most studies were at high risk of methodological bias. CONCLUSIONS: MRI following traumatic brain injury yields important prognostic information, with several lesion patterns significantly associated with long-term survival and neurologic outcome. Given the high risk of bias in the current body of literature, large well-controlled studies are necessary to better quantify the prognostic role of early MRI in moderate and severe traumatic brain injury. PMID- 29028765 TI - Preventing clinical progression and need for treatment in patients on active surveillance for prostate cancer. AB - PURPOSE OF REVIEW: Active surveillance is an established treatment option for men with localized, low-risk prostate cancer (CaP). It entails the postponement of immediate therapy with the option of delayed intervention upon disease progression. The rate of clinical progression and need for treatment on active surveillance is approximately 50% over 15 years. The present review summarizes recent data on current methods, attempting to prevent clinical progression. RECENT FINDINGS: Patient selection for active surveillance is the first mandatory step required to lower progression. Adherence to active surveillance protocols is critical in making sure patients are monitored well and treated early when progression occurs. Before active surveillance allocation and during active surveillance follow-up, methods involving multiparametric MRI, prostate specific antigen derivatives, biopsy factors, urinary, tissue and genetic markers can be used to prevent clinical progression and/or identify those at risk for progression. Medications such as 5alpha-reductase inhibitors and others might inhibit disease progression in patients on active surveillance. SUMMARY: Active surveillance is required because of overdiagnosis, along with our inability to accurately predict individual CaP behavior. Several methods can potentially reduce the risk of CaP progression in patients with active surveillance. However, a measure of uncertainty and fear of progression will always accompany patients with active surveillance and the physicians treating them. PMID- 29028766 TI - Immunotherapy for metastatic urothelial carcinoma: status quo and the future. AB - PURPOSE OF REVIEW: The treatment paradigm of urothelial carcinoma has been revolutionized by the advent of multiple anti-programmed-cell death-1/ligand-1 (PD-1/PD-L1) antibodies. Significant improvements have been obtained in the locally advanced or metastatic stage, which was lacking of therapeutic standards. This review reports key findings from completed and ongoing clinical trials that highlight the potential of PD-1/PD-L1 blockade in this disease. RECENT FINDINGS: Anti-PD-1/PD-L1 monoclonal antibodies have shown efficacy and safety in patients with urothelial carcinoma, regardless of their prognostic features. Efficacy was similar across different compounds, with objective responses that approximate 20%, with some differences favoring PD-L1-expressing patients. Typically, responding patients have good chances of achieving durable response, but biomarkers predictive of therapeutic effect are lacking. To date, evidences from randomized studies are limited to the second-line, postplatinum therapy. SUMMARY: Despite the activity of PD-1/PD-L1 inhibitors is well established in metastatic urothelial carcinoma, multiple gray zones still exist regarding their optimal use in clinical practice. These uncertainties are related to patient and treatment related criteria, to the optimal duration of treatment, including combination or sequence with standard chemotherapy. Special issues are represented by pseudoprogression or hyperprogression. Generally, enhanced predictive tools are needed and a myriad of further investigations are underway. PMID- 29028767 TI - Prostate-specific membrane antigen-guided salvage lymph node dissection in recurrent prostate cancer: a novel technology to detect lymph node metastases. AB - PURPOSE OF REVIEW: With Gallium (Ga)-prostate-specific membrane antigen (PSMA) PET/computed tomography (CT) as emerging imaging technique offering superior detection rates in biochemical recurrent prostate cancer, salvage lymph node dissection has gained increasing interest in localized oligometastatic prostate cancer. Currently, PSMA-targeting small molecules cannot only be linked to positron-emitting isotopes for imaging but also be labelled with gamma-radiation emitting isotopes. These modified PSMA agents are evaluated for intraoperative guidance for resection of metastatic lymph nodes. This review aims to review current knowledge on the novel technique of PSMA-radioguided surgery. RECENT FINDINGS: Recently radiolabeling of PSMA ligands with Indium and Technetium as gamma emitter has been established. After preoperative intravenous injection of these novel PSMA agents single photon emission computed tomography/CT imaging can be performed using the gamma-emitting properties. Although its diagnostic performance seems to be inferior to Ga-PSMA PET/CT, intraoperative guidance by the use of a gamma probe was reported to facilitate detection and resection of tumour-infiltrated soft tissue. First follow-up data suggests favourable outcomes concerning prostate-specific antigen progression and treatment-free survival in a subset of patients. SUMMARY: Although current knowledge is still limited and published data is sparse salvage surgery in recurrent prostate cancer facilitated by gamma-emitting PSMA agents seems feasible. However, careful identification of ideal candidates for those procedures is mandatory. PMID- 29028768 TI - Hydrogen Gas Treatment Improves the Neurological Outcome After Traumatic Brain Injury Via Increasing miR-21 Expression. AB - Hydrogen gas (H2) exerts a beneficial effect against traumatic brain injury (TBI). microRNA-21 (miR-21) is one of the most highly expressed members of small non-coding microRNA family in mammalian cells. miR-21 can improve the neurological outcome after TBI. In the present study, we investigated whether H2 treatment could improve the neurological outcome after TBI via increasing miR-21 expression. TBI was induced by controlled cortical impact in rats. H2 treatment was given by exposure to 2% H2 from 30 min to 5 h after TBI operation. Here, we found that H2 treatment significantly increased the expression of miR-21 in brain from 6 h to 3 d after TBI. The level of miR-21 expression in brain was significantly decreased after intracerebroventricular infusion of miR-21 antagomir in TBI-challenged rats with or without H2 treatment. Moreover, we found that H2 treatment conferred a better neurological outcome after TBI by improving neurological dysfunction, alleviating brain edema as well as decreasing lesion volume and blood-brain barrier permeability, which were significantly prevented by miR-21 antagomir. Furthermore, intracerebroventricular infusion of miR-21 agomir increased the level of miR-21 expression and decreased the lesion volume after TBI. In addition, H2 treatment decreased the levels of oxidative products (malondialdehyde and 8-iso-prostaglandin F2alpha) and increased the activities of endogenous antioxidant enzymes (superoxide dismutase and catalase) in brain after TBI, which were prevented by miR-21 antagomir. Taken together, these data indicate that H2 treatment improves the neurological outcome after TBI via increasing miR-21 expression. PMID- 29028769 TI - Activation of the Nuclear Receptor Fxr Improves Intestinal Cell Tolerance to Ischemia-Reperfusion Injury. AB - The farnesoid X receptor (FXR) plays an important role in bile acid metabolism, intestinal homeostasis, and intestinal ischemia-reperfusion (I/R) injury. We aimed to clarify the potential effects of FXR on intestinal epithelial cell tolerance to intestinal I/R injury and reveal the underlying mechanisms. An intestinal I/R injury model was established by the occlusion of the superior mesenteric artery for ischemia for 1 h, followed by reperfusion for 4 h in C57BL/6 (wild type [WT]) and FXR mice. The small intestine injury was assessed by histological analysis. Diamine oxidase and TNF-alpha levels in the serum were measured. Expressions of Bcl-2, Bax, caspase-3, and cystathionine-gamma-lyase (CSE) were determined by immunohostochemical staining. Oxygen-glucose deprivation/reperfusion (OGD/R) was used to make injury in cultured Caco-2 cells pretreated with FXR agonist (INT-747) or DL-propargylglycine (PAG) for 24 h. Cell viability and the expressions of NF-kappaB, TNF-alpha, and IL-6 were assessed. Compared with WT I/R mice, FXR knockout mice exacerbated intestinal I/R injury, intestinal epithelial apoptosis, and inflammatory response. The I/R injury in WT mice was alleviated with INT-747 pretreatment. CSE expression increased after intestinal I/R injury in WT but not in FXR mice. INT-747 enhanced Caco-2 cell viability and inhibited inflammatory response by blocking the NF-kappaB pathway after OGD/R injury, which was diminished by a CSE-specific inhibitor (PAG). Thus, we demonstrated that FXR activation enhances intestinal epithelial cell tolerance to I/R by suppressing the inflammatory response and NF-kappaB pathway via CSE mediation. PMID- 29028770 TI - Expression and Clinical Correlations of Costimulatory Molecules on Peripheral T Lymphocyte Subsets of Early-Stage Severe Sepsis: A Prospective Observational Study. AB - OBJECTIVE: The aim of the study was to investigate the expression and clinical correlations of costimulatory molecules on peripheral T-cell subsets of severe sepsis (SS) patients. METHODS: Blood samples of patients with community-acquired pneumonia-associated SS and healthy controls (HCs) were analyzed. SS patients were followed up for 28 days. Costimulatory molecule expression on T-cell subsets was determined by flow cytometry analysis. The clinical correlations of these parameters were examined. RESULTS: A total of 92 SS patients and 29 HCs were recruited. Higher frequency of CD28, CD27, OX40 on CD4+ T cells, OX40 on CD4+CD27 CD28- T cells and lower frequency of CD4+CD27-CD28- T cells in the SS group compared with the HC group and in the nonsurvived SS group compared with the survived SS subgroup were observed. The SS group and the nonsurvived SS subgroup exhibited lower frequency of 4-1BB on either CD8+ or CD4+ T cells. The frequency of regulatory T cells (Tregs), OX40+ Tregs and 4-1BB+ conventional T cells (Tconvs) were higher in the SS group. The frequency of CD4+CD27+ T cells, CD4+CD28+ T cells, and OX40+ on CD4+CD27-CD28- T cells were positively correlated with the sequential organ failure assessment (SOFA) score. The frequency of CD4+CD27+ T cells and OX40+ on CD4+CD27-CD28- T cells independently predicted 28 day mortality. CONCLUSIONS: Early-stage SS patients exhibited an activated T-cell phenotype. Imbalanced OX40 and 4-1BB expression presented on Tregs and Tconvs may contribute to a functional imbalance of Tregs/Tconvs. The frequency of CD4+CD27+ T cells and OX40+ on CD4+CD27-CD28- T cells predicted 28-day mortality of SS. PMID- 29028771 TI - Mechanisms of Thrombocytopenia During Septic Shock: A Multiplex Cluster Analysis of Endogenous Sepsis Mediators. AB - BACKGROUND: Thrombocytopenia is a common feature of sepsis and may involve various mechanisms often related to the inflammatory response. This study aimed at evaluating factors associated with thrombocytopenia during human septic shock. In particular, we used a multiplex analysis to assess the role of endogenous sepsis mediators. METHODS: Prospective, observational study. Thrombocytopenia was defined as an absolute platelet count <100 G/L or a 50% relative decrease in platelet count during the first week of septic shock. Plasma concentrations of 27 endogenous mediators involved in sepsis and platelet pathophysiology were assessed at day-1 using a multi-analyte Milliplex human cytokine kit. Patients with underlying diseases at risk of thrombocytopenia (hematological malignancies, chemotherapy, cirrhosis, and chronic heart failure) were excluded. RESULTS: Thrombocytopenia occurred in 33 (55%) of 60 patients assessed. Patients with thrombocytopenia were more prone to present with extrapulmonary infections and bacteremia. Disseminated intravascular coagulation was frequent (81%) in these patients. Unbiased hierarchical clustering identified five different clusters of sepsis mediators, including one with markers of platelet activation (e.g., thrombospondin-1) positively associated with platelet count, one with markers of inflammation (e.g., tumor necrosis factor alpha and heat shock protein 70), and endothelial dysfunction (e.g., intercellular adhesion molecule-1 and vascular cell adhesion molecule-1) negatively associated with platelet count, and another involving growth factors of thrombopoiesis (e.g., thrombopoietin), also negatively associated with platelet count. Surrogates of hemodilution (e.g., hypoprotidemia and higher fluid balance) were also associated with thrombocytopenia. CONCLUSION: Multiple mechanisms seemed involved in thrombocytopenia during septic shock, including endothelial dysfunction/coagulopathy, hemodilution, and altered thrombopoiesis. PMID- 29028772 TI - Heme Oxygenase-1 Protects the Liver from Septic Injury by Modulating TLR4 Mediated Mitochondrial Quality Control in Mice. AB - Mitochondrial dysfunction is involved in the pathogenesis of sepsis-induced multiple organ dysfunction syndrome (MODS). Mitochondrial quality control (QC) is characterized by self-recovering mitochondrial damage through mitochondrial biogenesis, mitophagy, and fission/fusion. Heme oxygenase (HO)-1 acts as a signaling molecule to modulate inflammation. The present study elucidated the cytoprotective mechanisms of HO-1 in sepsis, particularly focusing on toll-like receptor (TLR)4-mediated mitochondrial QC. Mice were subjected to sepsis by cecal ligation and puncture (CLP). The mice were injected intraperitoneally with hemin (10 mg/kg) at 12 h before CLP or zinc protoporphyrin IX (ZnPP; 30 mg/kg) at 2 h before CLP. The serum and tissues were collected 6 h after CLP. Mortality, MODS, and proinflammatory cytokines increased in septic mice. These increases were augmented by ZnPP but attenuated by hemin. Hemin decreased mitochondrial lipid peroxidation and mitochondrial dysfunction. Hemin enhanced mitochondrial biogenesis, as indicated by increased levels of peroxisome proliferator-activated receptor-gamma coactivator 1alpha, nuclear respiratory factor 1, and mitochondrial transcription factor A (TFAM). Hemin also enhanced mitophagy, as indicated by decreased PTEN-induced putative kinase 1 (PINK1) level and increased Parkin level. Hemin decreased fission-related protein, dynamin-related protein 1 (DRP1), and increased fusion-related protein, mitofusin 2. Hemin attenuated the increased TLR4 expression. TAK-242, a TLR4 antagonist, attenuated mortality, inflammatory response, and impaired mitochondrial QC. Our findings suggest that HO-1 attenuates septic injury by modulating TLR4-mediated mitochondrial QC. PMID- 29028773 TI - Medication Review and the Active Consumer of Health. PMID- 29028774 TI - Seeking Humanizing Care in Patient-Centered Care Process: A Grounded Theory Study. AB - Patient-centered care is both a goal in itself and a tool for enhancing health outcomes. The application of patient-centered care in health care services globally however is diverse. This article reports on a study that sought to introduce patient-centered care. The aim of this study is to explore the process of providing patient-centered care in critical care units. The study used a grounded theory method. Data were collected on 5 critical care units in Tehran University of Medical Sciences. Purposive and theoretical sampling directed the collection of data using 29 semistructured interviews with 27 participants (nurses, patients, and physician). Data obtained were analyzed according to the analysis stages of grounded theory and constant comparison to identify the concepts, context, and process of the study. The core category of this grounded theory is "humanizing care," which consisted of 4 interrelated phases, including patient acceptance, purposeful patient assessment and identification, understanding patients, and patient empowerment. A core category of humanizing care integrated the theory. Humanizing care was an outcome and process. Patient centered care is a dynamic and multifaceted process provided according to the nurses' understanding of the concept. Patient-centered care does not involve repeating routine tasks; rather, it requires an all-embracing understanding of the patients and showing respect for their values, needs, and preferences. PMID- 29028775 TI - The Effect of Progressive Relaxation Exercises on Fatigue and Sleep Quality in Individuals With COPD. AB - This randomized controlled experimental study was conducted to investigate the effect of progressive muscle relaxation exercises on dyspnea, fatigue, and sleep quality in individuals with chronic obstructive pulmonary disease. A Descriptive Questionnaire and the Chronic Obstructive Pulmonary Disease and Asthma Fatigue Scale, Chronic Obstructive Pulmonary Disease and Asthma Sleep Scale and Medical Research Council Dyspnea Scale were used for data collection. The decrease in the mean dyspnea, fatigue, and sleep scores in the intervention group was statistically significantly more pronounced than the patients in the control group (P < .05). Progressive relaxation exercises can be implemented to decrease the dyspnea, fatigue, and sleep problems seen in patients with moderate and advanced chronic obstructive pulmonary disease by nurses working in the clinic. PMID- 29028776 TI - The Effect of Music Therapy on Anxiety and Various Physical Findings in Patients With COPD in a Pulmonology Service. AB - This interventional study was carried out to determine the effect of music therapy on anxiety and the various physical findings in patients with chronic obstructive pulmonary disease in the pulmonary diseases service. Ninety-six patients (28 females, 68 males) of 114 adult patients who were hospitalized between November 10, 2013, and March 10, 2014, were included in the study. Ninety six patients were separated in 3 groups. The data for the study were collected from a questionnaire form of sociodemographic and clinical characteristics, a patient follow-up form, and the Beck Anxiety Scale. SPPS 11.5 was used for data analysis. The Kolmogorov-Smirnov Test was used to determine whether the data showed normal distribution. The nonparametric Kruskal-Wallis Test was used to determine the differences between mean anxiety scores on day 0, day 5, and day 15, and the differences in physiological findings on day 0, day 5, and day 15. There was a significant decrease in anxiety level average on day 5 (P <= .0001) and day 15 (P <= .0001) of the study in both the Western classical music and Turkish classical music groups compared with control group. There was also a significant decrease in systolic blood pressure and diastolic blood pressure averages in both music groups compared with control group (P <= .005). There was no significant difference in heart rates and respiration rate average between the Western classical music and Turkish classical music groups compared with the control group (P > .05). PMID- 29028777 TI - Taboo in the Workplace: A Qualitative Study of Taiwanese Nurses' "Not-Eating Pineapple" in Clinical Practice. AB - There has been an increased emphasis on nurses' mental health and well-being in the workplace. Psychologists have established a correlative link between individual's beliefs on luck and mental health. The pineapple taboo has been observed among Taiwanese hospital nurses as a prevalent superstitious belief for bringing luck or warding off increased clinical workloads, but how and why the ritual persists in the hospital workplace remains unknown. This article aims to explore the latent meaning of observance of the taboo and how it is related to nurses' clinical practice and possibly affects their mental health at work. A qualitative research was designed in line with the hermeneutic phenomenological method. Through purposive sampling, 18 nurse participants were recruited for in depth semistructured interviews. Resulting from the ensuing analysis, 3 modalities were identified as constituting the spectrum of observance of the taboo: (a) "strictly not eating pineapple"; (b) "not eating pineapple at work"; and (c) "eating pineapple without admitting to doing so." Each reflects the position of nurses revealed in relation to the pineapple taboo in clinical settings. Based on the subjective narratives of nurses, it may be understood as an active moral attempt at "being right" rather than a passive avoidance of bad luck in the taboo observation. The findings facilitate an appropriate understanding of the embedded meaning of nurses' workplace-related belief and its seminal function of empowerment for nurses in holistic nursing practice. PMID- 29028778 TI - Essential Oils and Gastroparesis: Power for Transforming Health, Hope, and Quality of Life. AB - This study explored how essential oils for persons with gastroparesis symptoms affect the quality of life. Gastroparesis is a chronic delayed gastric motility disorder characterized by postprandial fullness, early satiety, nausea, vomiting, abdominal discomfort, bloating, depression, and anxiety. The aim of this study was to determine how essential oils support digestion and eliminate inflammation in the body as evidenced by self-reporting a decrease in symptoms, thereby improving quality of life. A qualitative descriptive methodology using Barrette's Theory of Power as Knowing Participation in Change thematic framework was used. Three main themes were extracted from the data: awareness of quality of life possibilities, freedom to make choices, and transforming health and hope. The constitutive theme that was synthesized became essential oils transform health, hope, and increase quality-of-life possibilities. PMID- 29028779 TI - An Investigation of the Use of Traditional Chinese Medicine and Complementary and Alternative Medicine in Stroke Patients. AB - This study aimed to investigate the use of traditional Chinese medicine and complementary and alternative medicine in stroke patients in Taiwan. Chinese herbal medicine, massage, acupuncture, natural products, and exercise were widely used among stroke patients. Integrating safe and effective traditional Chinese medicine and complementary and alternative medicine into conventional therapies is suggested. PMID- 29028780 TI - Nutritional Neuroscience: A Therapeutic Lifestyle Factor in Mental Health. PMID- 29028781 TI - Fragranced Products and Risks of Adverse Effects. PMID- 29028782 TI - Single coronary artery anomaly and chest pain. PMID- 29028783 TI - Three-dimensional transesophageal echocardiography in the guide of cardiac mass biopsy: future prospectives. PMID- 29028784 TI - Manufacturer change and risk of system-related complications after implantable cardioverter defibrillator replacement: physicians' survey and data from the Detect Long-term Complications After Implantable Cardioverter Defibrillator Replacement Registry. AB - AIMS: Some barriers seem to exist in changing implantable cardioverter defibrillator (ICD) manufacturer at the time of device replacement. We sought to understand the obstacles to changing ICD manufacturer within the cohort of patients enrolled in the Detect Long-term Complications After ICD Replacement Registry. METHODS: We analyzed 784 consecutive ICD/cardiac resynchronization therapy defibrillator (CRT-D) device replacements within a 1.5-year time-frame in 36 Italian centers to evaluate potential factors associated with changing manufacturers and system-related complications. RESULTS: Manufacturer change occurred in 191 patients (24%): 72/211 single-chamber ICDs (34%), 52/210 dual chamber ICDs (25%) and 67/363 CRT-D (18%, P < 0.0001 vs. single-chamber). Replacement-only procedures were associated with a lower rate of manufacturer change than upgrading procedures (23 vs. 32%, P = 0.02). In the single chamber/dual-chamber cohort, the only variables associated with manufacturer change were the number of available manufacturers (OR = 1.9; P < 0.0001) and an upgrade procedure (OR = 1.7; P = 0.035), whereas the center volume was associated with maintenance of the same manufacturer (OR = 0.5; P = 0.0172). In the CRT-D group, the number of available manufacturers [OR = 2.9; P < 0.0001, service life below the median value (OR = 2.5; P = 0.0026)], and physiological design (OR = 8.4; P = 0.0048) were associated with manufacturer change. At 6-month follow-up, 17 patients (2.2%) experienced a system complication that was lead-related in all cases; upgrade procedure was the only predictor (hazard ratio = 6.7) of complications. CONCLUSION: At the time of ICD replacement, a manufacturer change occurred in 24% of patients and it was less likely in CRT-D devices, which are equipped with more specific technology and less frequently require the addition of features. System-related complications are strongly associated to upgrade procedures rather than to manufacturer change. PMID- 29028785 TI - A shot through the heart. PMID- 29028786 TI - Reducer, extracorporeal shockwave therapy or stem cells in refractory angina: a retrospective study. PMID- 29028787 TI - Relationship Between PD-L1 Expression and CD8+ T-cell Immune Responses in Hepatocellular Carcinoma. AB - As PD-1/PD-L1 immune checkpoint inhibitors exhibited promising clinical outcomes in various types of solid tumors, PD-1/PD-L1 blockades have been explored for the treatment of hepatocellular carcinoma (HCC). However, the association of PD-L1 with antitumor immunoregulation is not clearly defined in HCC. Here, we evaluated the characteristics of PD-L1 expression, CD8 T-cell infiltration and their relationship in HCC. A total of 411 resected tumor specimens from HCC patients were immunostained for PD-L1 and CD8. Only 78 (19%) cases showed >=5% membranous PD-L1 expression on tumor cells, although a significantly positive correlation was found between PD-L1 expression and CD8 T-cell densities. Moreover, patients with higher tumor PD-L1 expression also showed a higher hepatitis B virus load, which was also related to increased CD8 infiltration. Survival analysis suggested that both tumor and stroma PD-L1 status did not significantly affect overall survival or recurrence-free survival in patients. Although high CD8 T-cell density was overall associated with better overall survival and recurrence-free survival, its favorable prognostic value was eliminated by high tumor PD-L1 expression. Further flow cytometric and enzyme-linked immunosorbent assay (ELISA) results from the coculture of HCC cell lines with specific CD8 cytotoxic T lymphocytes (CTLs) demonstrated that CD8 CTLs remarkably upregulated PD-L1 expression on tumor cell lines by HLA class-I specificity, and the overexpression of tumor PD-L1 impaired interferon-gamma secretion by CD8 CTLs in a negative feedback regulation mechanism. In conclusion, our findings reveal an interaction between PD-L1 expression and CD8 T-cell immunity in HCC, although PD-L1 is not a prognostic factor for the patients. PMID- 29028788 TI - Efficacy and Safety of Pembrolizumab in Patients Enrolled in KEYNOTE-030 in the United States: An Expanded Access Program. AB - KEYNOTE-030 (ClinicalTrials.gov ID, NCT02083484) was a global expanded access program that allowed access to pembrolizumab, an antiprogrammed death 1 antibody, for patients with advanced melanoma before its regulatory approval. Patients with unresectable stage III/IV melanoma that progressed after standard-of-care therapy, including ipilimumab and, if BRAF mutant, a BRAF inhibitor, were eligible to receive pembrolizumab 2 mg/kg every 3 weeks. Response was assessed by immune-related response criteria by investigator review. Adverse events (AEs) were graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events, version 4.0. In the United States, 979 patients enrolled between April and September 2014. Of the 947 evaluable patients, 621 (65.6%) remained on treatment and transitioned to receive commercial pembrolizumab following approval by the Food and Drug Administration, whereas 326 (34.4%) discontinued, most commonly for disease progression (39.6%) or death (26.4%). Objective response rate was 14.5% (95% confidence interval, 12.2%-16.8%) in the treated population (n=947) and 22.1% (95% confidence interval, 18.8% 25.5%) in patients who had >=1 response assessment reported (n=619). Twelve patients achieved complete response. One hundred eighty-one (19.1%) patients experienced >=1 treatment-related AE, most commonly general disorders (8.0%), skin/subcutaneous tissue disorders (7.3%), and gastrointestinal disorders (6.4%); 29 (3.1%) patients experienced >=1 grade 3/4 treatment-related AE. Immune mediated AEs were also reported. There were no treatment-related deaths. The safety and efficacy observed in this expanded access program were consistent with those previously reported for similar populations and support the use of pembrolizumab for patients with advanced melanoma. PMID- 29028789 TI - Safe Administration of An Anti-PD-1 Antibody to Kidney-transplant Patients: 2 Clinical Cases and Review of the Literature. AB - Antiprogrammed cell-death protein 1 (PD-1) antibodies have revolutionized therapy of metastatic melanoma and other tumors, but some subgroups of patients such as immunosuppressed patients after solid-organ transplantation, have regularly been excluded from clinical studies. We report 2 cases of kidney-transplant patients who received an anti-PD-1 antibody to treat metastatic melanoma. Treatment was tolerated well with no relevant adverse events and stable kidney functions, but the melanoma progressed in both patients. Factors potentially affecting risk of allograft rejection and response to treatment, for example, immunosuppressive regimen and therapeutic sequence, are discussed on the basis of current literature. Further studies are necessary to determine the risk of allograft rejection and the therapeutic benefit of anti-PD-1 antibodies for organ transplanted patients, in particular as these checkpoint inhibitors have become therapeutic standard in a variety of tumors other than melanoma. PMID- 29028790 TI - Imaging Factors that Distinguish Between Patients with Asymptomatic and Symptomatic Cervical Spondylotic Myelopathy with Mild to Moderate Cervical Spinal Cord Compression. AB - BACKGROUND Not all patients with spinal cord compression due to cervical spondylotic myelopathy (CSM) have clinical symptoms and signs. The aim of this study was to investigate and compare the imaging findings in asymptomatic and symptomatic patients with CSM with mild to moderate cervical spinal cord compression. MATERIAL AND METHODS A retrospective clinical study included 68 patients. Group A (n=30) had no symptoms and signs; group B (n=38) had symptoms and signs of cervical myelopathy. The age, sex, body mass index (BMI), history of steroid treatment, duration of symptoms, number of spondylotic cervical segments, Torg ratio, range of motion (ROM), incidence of cervical segmental instability, overall curvature of the cervical spine, direction of spinal cord compression, and spinal cord magnetic resonance imaging (MRI) signal intensity were compared. RESULTS For groups A and B, the Torg ratio was 90.3% and 83.6% (P<0.05), the incidence of cervical segmental instability was 23.3% and 65.8% (P<0.05), and the incidence of a spinal cord high intensity signal was 13.3% and 86.9% (P<0.05). Logistic regression analysis showed myelopathy as a dependent variable, independently associated with cervical segmental instability (OR=5.898, P=0.037), an MRI T2-weighted intramedullary high signal (OR=9.718, P=0.002), and Torg ratio (OR=0.155, P=0.006). CONCLUSIONS Cervical segmental instability, a high intramedullary signal on T2-weighted MRI, and the Torg ratio had the greatest capacity to distinguish between asymptomatic and symptomatic patients with CSM with mild to moderate cervical spinal cord compression. PMID- 29028791 TI - Is diacerein an alternative for the treatment of osteoarthritis? AB - INTRODUCTION: Among the possibilities for the management of osteoarthritis, different pharmacological alternatives have been proposed, being diacerein one of them due to its anti-inflammatory effect. However, diacerein clinical utility is not clear. METHODS: To answer this question, we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data of primary studies, conducted a meta-analysis and generated a summary of findings table using the GRADE approach. RESULTS AND CONCLUSION: We concluded diacerein probably leads to a slight reduction in pain, but would not improve functionality among patients with knee osteoarthritis, and can frequently present diarrhea as an adverse effect. PMID- 29028792 TI - Is a psychotherapeutic approach possible in primary health care? AB - The development of valid psychotherapeutic approaches, adapted to the characteristics of the consultation in primary care, is a subject in constant development. In order to work effectively in a model of psychotherapy adjusted to primary care, the health practitioner (psychiatrist, psychologist, or family physician) must constantly focus on finding the most efficient way to treat the patient, in a short period of time, and with different nuances from those usually used in secondary care: That is, an eclectic and pragmatic approach to dealing with the problems that patients bring to consultation, and a practical and direct way of assisting them, in order to achieve therapeutic goals. To try to answer the question of whether it is possible to perform psychotherapeutic approaches in primary health care, this brief analysis presents a reflection on the issue and a case example. PMID- 29028793 TI - Clinico-pathological features of erythema nodosum leprosum: A case-control study at ALERT hospital, Ethiopia. AB - BACKGROUND: Leprosy reactions are a significant cause of morbidity in leprosy population. Erythema nodosum leprosum (ENL) is an immunological complication affecting approximately 50% of patients with lepromatous leprosy (LL) and 10% of borderline lepromatous (BL) leprosy. ENL is associated with clinical features such as skin lesions, neuritis, arthritis, dactylitis, eye inflammation, osteitis, orchitis, lymphadenitis and nephritis. ENL is treated mainly with corticosteroids and corticosteroids are often required for extended periods of time which may lead to serious adverse effects. High mortality rate and increased morbidity associated with corticosteroid treatment of ENL has been reported. For improved and evidence-based treatment of ENL, documenting the systems affected by ENL is important. We report here the clinical features of ENL in a cohort of patients with acute ENL who were recruited for a clinico-pathological study before and after prednisolone treatment. MATERIALS AND METHODS: A case-control study was performed at ALERT hospital, Ethiopia. Forty-six LL patients with ENL and 31 non-reactional LL matched controls were enrolled to the study and followed for 28 weeks. Clinical features were systematically documented at three visits (before, during and after predinsolone treatment of ENL cases) using a specifically designed form. Skin biopsy samples were obtained from each patient before and after treatment and used for histopathological investigations to supplement the clinical data. RESULTS: Pain was the most common symptom reported (98%) by patients with ENL. Eighty percent of them had reported skin pain and more than 70% had nerve and joint pain at enrolment. About 40% of the patients developed chronic ENL. Most individuals 95.7% had nodular skin lesions. Over half of patients with ENL had old nerve function impairment (NFI) while 13% had new NFI at enrolment. Facial and limb oedema were present in 60% patients. Regarding pathological findings before treatment, dermal neutrophilic infiltration was noted in 58.8% of patients with ENL compared to 14.3% in LL controls. Only 14.7% patients with ENL had evidence of vasculitis at enrolment. CONCLUSION: In our study, painful nodular skin lesions were present in all ENL patients. Only 58% patients had dermal polymorphonuclear cell infiltration showing that not all clinically confirmed ENL cases have neutrophilic infiltration in lesions. Very few patients had histological evidence of vasculitis. Many patients developed chronic ENL and these patients require inpatient corticosteroid treatment for extended periods which challenges the health service facility in resource poor settings, as well as the patient's quality of life. PMID- 29028795 TI - Alx4 relays sequential FGF signaling to induce lacrimal gland morphogenesis. AB - The sequential use of signaling pathways is essential for the guidance of pluripotent progenitors into diverse cell fates. Here, we show that Shp2 exclusively mediates FGF but not PDGF signaling in the neural crest to control lacrimal gland development. In addition to preventing p53-independent apoptosis and promoting the migration of Sox10-expressing neural crests, Shp2 is also required for expression of the homeodomain transcription factor Alx4, which directly controls Fgf10 expression in the periocular mesenchyme that is necessary for lacrimal gland induction. We show that Alx4 binds an Fgf10 intronic element conserved in terrestrial but not aquatic animals, underlying the evolutionary emergence of the lacrimal gland system in response to an airy environment. Inactivation of ALX4/Alx4 causes lacrimal gland aplasia in both human and mouse. These results reveal a key role of Alx4 in mediating FGF-Shp2-FGF signaling in the neural crest for lacrimal gland development. PMID- 29028794 TI - Condensin II and GAIT complexes cooperate to restrict LINE-1 retrotransposition in epithelial cells. AB - LINE-1 (L1) retrotransposons can mobilize (retrotranspose) within the human genome, and mutagenic de novo L1 insertions can lead to human diseases, including cancers. As a result, cells are actively engaged in preventing L1 retrotransposition. This work reveals that the human Condensin II complex restricts L1 retrotransposition in both non-transformed and transformed cell lines through inhibition of L1 transcription and translation. Condensin II subunits, CAP-D3 and CAP-H2, interact with members of the Gamma-Interferon Activated Inhibitor of Translation (GAIT) complex including the glutamyl-prolyl tRNA synthetase (EPRS), the ribosomal protein L13a, Glyceraldehyde 3-phosphate dehydrogenase (GAPDH), and NS1 associated protein 1 (NSAP1). GAIT has been shown to inhibit translation of mRNAs encoding inflammatory proteins in myeloid cells by preventing the binding of the translation initiation complex, in response to Interferon gamma (IFN-gamma). Excitingly, our data show that Condensin II promotes complexation of GAIT subunits. Furthermore, RNA-Immunoprecipitation experiments in epithelial cells demonstrate that Condensin II and GAIT subunits associate with L1 RNA in a co-dependent manner, independent of IFN-gamma. These findings suggest that cooperation between the Condensin II and GAIT complexes may facilitate a novel mechanism of L1 repression, thus contributing to the maintenance of genome stability in somatic cells. PMID- 29028797 TI - STAT, Wingless, and Nurf-38 determine the accuracy of regeneration after radiation damage in Drosophila. AB - We report here a study of regeneration in Drosophila larval wing imaginal discs after damage by ionizing radiation. We detected faithful regeneration that restored a wing disc and abnormal regeneration that produced an extra wing disc. We describe a sequence of changes in cell number, location and fate that occur to produce an ectopic disc. We identified a group of cells that not only participate in ectopic disc formation but also recruit others to do so. STAT92E (Drosophila STAT3/5) and Nurf-38, which encodes a member of the Nucleosome Remodeling Factor complex, oppose each other in these cells to modulate the frequency of ectopic disc growth. The picture that emerges is one in which activities like STAT increase after radiation damage and fulfill essential roles in rebuilding the tissue. But such activities must be kept in check so that one and only one wing disc is regenerated. PMID- 29028796 TI - BAK1 is involved in AtRALF1-induced inhibition of root cell expansion. AB - The rapid alkalinization factor (RALF) peptide negatively regulates cell expansion, and an antagonistic relationship has been demonstrated between AtRALF1, a root-specific RALF isoform in Arabidopsis, and brassinosteroids (BRs). An evaluation of the response of BR signaling mutants to AtRALF1 revealed that BRI1-associated receptor kinase1 (bak1) mutants are insensitive to AtRALF1 root growth inhibition activity. BAK1 was essential for the induction of AtRALF1 responsive genes but showed no effect on the mobilization of Ca2+ and alkalinization responses. Homozygous plants accumulating AtRALF1 and lacking the BAK1 gene did not exhibit the characteristic semi-dwarf phenotype of AtRALF1 overexpressors. Biochemical evidence indicates that AtRALF1 and BAK1 physically interact with a Kd of 4.6 MUM and acridinium-labeled AtRALF1 was used to demonstrate that part of the specific binding of AtRALF1 to intact seedlings and to a microsomal fraction derived from the roots of Arabidopsis plants is BAK1 dependent. Moreover, AtRALF1 induces an increase in BAK1 phosphorylation, suggesting that the binding of AtRALF1 to BAK1 is functional. These findings show that BAK1 contains an additional AtRALF1 binding site, indicating that this protein may be part of a AtRALF1-containing complex as a co-receptor, and it is required for the negative regulation of cell expansion. PMID- 29028798 TI - Obstructive sleep apnea and rhonchopathy are associated with downregulation of trefoil factor family peptide 3 (TFF3)-Implications of changes in oral mucus composition. AB - STUDY OBJECTIVES: Trefoil factor family (TFF) peptides belong to the family of mucin-associated peptides and are expressed in most mucosal surfaces. TFF peptides carry out functions such as proliferation and migration enhancement, anti-apoptosis, and wound healing. Moreover, TFFs are associated with mucins and interact with them as "linker peptides", thereby influencing mucus viscosity. To test the hypothesis that in rhonchopathy and obstructive sleep apnea (OSA) changes occur in the expression of TFF3 and -2 that could contribute to changes in mucus viscosity, leading to an increase in upper airway resistance during breathing. METHODS: RT-PCR, Western-blot, immunohistochemistry and ELISA were performed to detect and quantify TFF3 and -2 in uvula samples. In addition, 99 saliva samples from patients with mild, moderate or severe OSA, as well as samples from rhonchopathy patients and from healthy volunteers, were analyzed by ELISA. RESULTS: TFF3 was detected in all uvula samples. Immunohistochemistry revealed a subjectively decreasing antibody reactivity of the uvula epithelia with increasing disease severity. ELISA demonstrated significantly higher TFF3 saliva protein concentrations in the healthy control group compared to cases with rhonchopathy and OSA. Predisposing factors of OSA such as BMI or age showed no correlation with TFF3. No significant changes were observed with regard to TFF2. CONCLUSIONS: The results suggest the involvement of TFF3 in the pathogenesis of rhonchopathy and OSA and lead to the hypothesis that reduction of TFF3 production by the epithelium and subepithelial mucous glands of the uvula contribute to an increase in breathing resistance due to a change in mucus organization. PMID- 29028799 TI - Modeling the environmental suitability of anthrax in Ghana and estimating populations at risk: Implications for vaccination and control. AB - Anthrax is hyper-endemic in West Africa. Despite the effectiveness of livestock vaccines in controlling anthrax, underreporting, logistics, and limited resources makes implementing vaccination campaigns difficult. To better understand the geographic limits of anthrax, elucidate environmental factors related to its occurrence, and identify human and livestock populations at risk, we developed predictive models of the environmental suitability of anthrax in Ghana. We obtained data on the location and date of livestock anthrax from veterinary and outbreak response records in Ghana during 2005-2016, as well as livestock vaccination registers and population estimates of characteristically high-risk groups. To predict the environmental suitability of anthrax, we used an ensemble of random forest (RF) models built using a combination of climatic and environmental factors. From 2005 through the first six months of 2016, there were 67 anthrax outbreaks (851 cases) in livestock; outbreaks showed a seasonal peak during February through April and primarily involved cattle. There was a median of 19,709 vaccine doses [range: 0-175 thousand] administered annually. Results from the RF model suggest a marked ecological divide separating the broad areas of environmental suitability in northern Ghana from the southern part of the country. Increasing alkaline soil pH was associated with a higher probability of anthrax occurrence. We estimated 2.2 (95% CI: 2.0, 2.5) million livestock and 805 (95% CI: 519, 890) thousand low income rural livestock keepers were located in anthrax risk areas. Based on our estimates, the current anthrax vaccination efforts in Ghana cover a fraction of the livestock potentially at risk, thus control efforts should be focused on improving vaccine coverage among high risk groups. PMID- 29028800 TI - Spatial distribution of extensively drug-resistant tuberculosis (XDR TB) patients in KwaZulu-Natal, South Africa. AB - BACKGROUND: KwaZulu-Natal province, South Africa, has among the highest burden of XDR TB worldwide with the majority of cases occurring due to transmission. Poor access to health facilities can be a barrier to timely diagnosis and treatment of TB, which can contribute to ongoing transmission. We sought to determine the geographic distribution of XDR TB patients and proximity to health facilities in KwaZulu-Natal. METHODS: We recruited adults and children with XDR TB diagnosed in KwaZulu-Natal. We calculated distance and time from participants' home to the closest hospital or clinic, as well as to the actual facility that diagnosed XDR TB, using tools within ArcGIS Network analyst. Speed of travel was assigned to road classes based on Department of Transport regulations. Results were compared to guidelines for the provision of social facilities in South Africa: 5km to a clinic and 30km to a hospital. RESULTS: During 2011-2014, 1027 new XDR TB cases were diagnosed throughout all 11 districts of KwaZulu-Natal, of whom 404 (39%) were enrolled and had geospatial data collected. Participants would have had to travel a mean distance of 2.9 km (CI 95%: 1.8-4.1) to the nearest clinic and 17.6 km (CI 95%: 11.4-23.8) to the nearest hospital. Actual distances that participants travelled to the health facility that diagnosed XDR TB ranged from <10 km (n = 143, 36%) to >50 km (n = 109, 27%), with a mean of 69 km. The majority (77%) of participants travelled farther than the recommended distance to a clinic (5 km) and 39% travelled farther than the recommended distance to a hospital (30 km). Nearly half (46%) of participants were diagnosed at a health facility in eThekwini district, of whom, 36% resided outside the Durban metropolitan area. CONCLUSIONS: XDR TB cases are widely distributed throughout KwaZulu-Natal province with a denser focus in eThekwini district. Patients travelled long distances to the health facility where they were diagnosed with XDR TB, suggesting a potential role for migration or transportation in the XDR TB epidemic. PMID- 29028802 TI - Pneumococcal responses are similar in Papua New Guinean children aged 3-5 years vaccinated in infancy with pneumococcal polysaccharide vaccine with or without prior pneumococcal conjugate vaccine, or without pneumococcal vaccination. AB - TRIAL DESIGN: In an earlier trial, Papua New Guinean (PNG) children at high risk of pneumococcal disease were randomized to receive 0 or 3 doses of 7-valent pneumococcal conjugate vaccine (PCV7), followed by a single dose of 23-valent pneumococcal polysaccharide vaccine (PPV23) at 9 months of age. We here studied in a non-randomized follow-up trial the persistence of pneumococcal immunity in these children at 3-5 years of age (n = 132), and in 121 community controls of a similar age with no prior pneumococcal vaccination. METHODS: Circulating IgG antibody titers to all PCV7 and PPV23-only serotypes 2, 5 and 7F were measured before and after challenge with 1/5th of a normal PPV23 dose. Serotype-specific memory B-cells were enumerated at 10 months and 3-5 years of age for a subgroup of study children. RESULTS: Serotype-specific IgG antibody titers before and after challenge were similar for children who received PCV7/PPV23, PPV23 only, or no pneumococcal vaccines. Before challenge, at least 89% and 59% of children in all groups had serotype-specific titers >= 0.35MUg/ml and >= 1.0 MUg/ml, respectively. Post-challenge antibody titers were higher or similar to pre challenge titers for most children independent of pneumococcal vaccination history. The rise in antibody titers was significantly lower when pre-challenge titers were higher. Overall the relative number of serotype-specific memory B cells remained the same or increased between 10 months and 3-5 years of age, and there were no differences in serotype-specific memory B-cell numbers at 3-5 years of age between the three groups. CONCLUSIONS: Immunity induced by PCV7 and/or PPV23 immunization in infancy does not exceed that of naturally acquired immunity in 3-5-year-old children living in a highly endemic area. Also, there was no evidence that PPV23 immunization in the first year of life following PCV7 priming induces longer-term hypo-responsiveness. TRIAL REGISTRATION: Clinicaltrials.gov NCT01414504 and NCT00219401. PMID- 29028801 TI - dOCRL maintains immune cell quiescence by regulating endosomal traffic. AB - Lowe Syndrome is a developmental disorder characterized by eye, kidney, and neurological pathologies, and is caused by mutations in the phosphatidylinositol 5-phosphatase OCRL. OCRL plays diverse roles in endocytic and endolysosomal trafficking, cytokinesis, and ciliogenesis, but it is unclear which of these cellular functions underlie specific patient symptoms. Here, we show that mutation of Drosophila OCRL causes cell-autonomous activation of hemocytes, which are macrophage-like cells of the innate immune system. Among many cell biological defects that we identified in docrl mutant hemocytes, we pinpointed the cause of innate immune cell activation to reduced Rab11-dependent recycling traffic and concomitantly increased Rab7-dependent late endosome traffic. Loss of docrl amplifies multiple immune-relevant signals, including Toll, Jun kinase, and STAT, and leads to Rab11-sensitive mis-sorting and excessive secretion of the Toll ligand Spatzle. Thus, docrl regulation of endosomal traffic maintains hemocytes in a poised, but quiescent state, suggesting mechanisms by which endosomal misregulation of signaling may contribute to symptoms of Lowe syndrome. PMID- 29028803 TI - Scale of Body Connection: A multi-sample construct validation study. AB - The Scale of Body Connection (SBC) was created to address the need for a self report measure to examine body awareness and bodily dissociation in mind-body research. Developed in the U.S.A., it has been translated into many languages and tested for validity of scale translation. The burgeoning of mind-body research and the widespread use of the SBC scale underscored the need for critical assessment of the instrument's measurement properties. Thus, a broader evaluation of the SBC was designed using large samples from eight international, cross sectional studies drawn from community (i.e., non-clinical) populations. Specifically, we assessed scale distribution properties and internal consistency reliabity, and using confirmatory factory analysis we evaluated scale contruct validity and compared male/female measurement models. The results indicated acceptable reliability for both the body awareness and bodily dissociation scales, and a good fit between the proposed theoretic model and the data, providing evidence of construct validity across all samples. Mean differences in body awareness were observed for males vs. females in most samples, with females generally showing higher body awareness compared to males. Multi-group structural equation modeling demonstrated a stable latent factor structure and factor loadings, indicating equivalent measurement models for males and females. In summary, this multi-sample study demonstrated SBC construct validity that supports its use in clinical research as a brief, readily translated, easy to administer measure of body awareness and bodily dissociation. PMID- 29028804 TI - A recombinase polymerase amplification assay for rapid detection of Crimean-Congo Haemorrhagic fever Virus infection. AB - BACKGROUND: Crimean-Congo Haemorrhagic fever Virus (CCHFV) is a rapidly emerging vector-borne pathogen and the cause of a virulent haemorrhagic fever affecting large parts of Europe, Africa, the Middle East and Asia. METHODOLOGY/PRINCIPLE FINDINGS: An isothermal recombinase polymerase amplification (RPA) assay was successfully developed for molecular detection of CCHFV. The assay showed rapid (under 10 minutes) detection of viral extracts/synthetic virus RNA of all 7 S segment clades of CCHFV, with high target specificity. The assay was shown to tolerate the presence of inhibitors in crude preparations of mock field samples, indicating that this assay may be suitable for use in the field with minimal sample preparation. The CCHFV RPA was successfully used to screen and detect CCHFV positives from a panel of clinical samples from Tajikistan. CONCLUSIONS/SIGNIFICANCE: The assay is a rapid, isothermal, simple-to-perform molecular diagnostic, which can be performed on a light, portable real-time detection device. It is ideally placed therefore for use as a field-diagnostic or in-low resource laboratories, for monitoring of CCHF outbreaks at the point-of need, such as in remote rural regions in affected countries. PMID- 29028805 TI - What drives slow wave activity during early non-REM sleep: Learning during prior wake or effort? AB - What is the function of sleep in humans? One claim is that sleep consolidates learning. Slow wave activity (SWA), i.e. slow oscillations of frequency < 4 Hz, has been observed in electroencephalograms (EEG) during sleep; it increases with prior wakefulness and decreases with sleep. Studies have claimed that increase in SWA in specific regions of the sleeping brain is correlated with overnight improved performance, i.e. overnight consolidation, on a demanding motor learning task. We wondered if SWA change during sleep is attributable to overnight consolidation or to metabolic demand. Participants executed out-and-back movements to a target using a pen-like cursor with their dominant hand while the target and cursor position were displayed on a screen. They trained on three different conditions on separate nights, differing in the amount and degree of rotation between the actual hand movement direction and displayed cursor movement direction. In the no-rotation (NR) condition, there was no rotation. In the single rotation (SR) condition, the amount of rotation remained the same throughout, and performance improved both across pre-sleep training and after sleep, i.e. overnight consolidation occurred; in the random rotation (RR) condition, the amount of rotation varied randomly from trial to trial, and no overnight consolidation occurred; SR and RR were cognitively demanding. The average EEG power density of SWA for the first 30 min. of non-rapid eye movement sleep after training was computed. Both SR and RR elicited increase in SWA in the parietal region; furthermore, the topographic distribution of SWA in each was remarkably similar. No correlation was found between the overnight performance improvement on SR and the SWA change in the parietal region on measures of learning. Our results argue that regulation of SWA in early sleep is associated with high levels of cognitive effort during prior wakefulness, and not just overnight consolidation. PMID- 29028806 TI - A novel immunotoxin reveals a new role for CD321 in endothelial cells. AB - There are currently several antibody therapies that directly target tumors, and antibody-drug conjugates represent a novel moiety as next generation therapeutics. Here, we used a unique screening probe, DT3C, to identify functional antibodies that recognized surface molecules and functional epitopes, and which provided toxin delivery capability. Accordingly, we generated the 90G4 antibody, which induced DT3C-dependent cytotoxicity in endothelial cells. Molecular analysis revealed that 90G4 recognized CD321, a protein localized at tight junctions. Although CD321 plays a pivotal role in inflammation and lymphocyte trans-endothelial migration, little is known about its mechanism of action in endothelial cells. Targeting of CD321 by the 90G4 immunotoxin induced cell death. Moreover, 90G4 immunotoxin caused cytotoxicity primarily in migratory endothelial cells, but not in those forming sheets, suggesting a critical role for CD321 in tumor angiogenesis. We also found that hypoxia triggered redistribution of CD321 to a punctate localization on the basal side of cells, resulting in functional impairment of tight junctions and increased motility. Thus, our findings raise the intriguing possibility that endothelial CD321 presented cellular localization in tight junction as well as multifunctional dynamics in several conditions, leading to illuminate the importance of widely expressed CD321 as a potential target for antitumor therapy. PMID- 29028807 TI - Ulcerative colitis, Crohn's disease, and irritable bowel syndrome have different profiles of extracellular matrix turnover, which also reflects disease activity in Crohn's disease. AB - BACKGROUND: Increased protease activity is a key pathological feature of inflammatory bowel disease (IBD). However, the differences in extracellular matrix remodelling (ECM) in Crohn's disease (CD) and ulcerative colitis (UC) are not well described. An increased understanding of the inflammatory processes may provide optimized disease monitoring and diagnostics. We investigated the tissue remodelling in IBD and IBS patients by using novel blood-based biomarkers reflecting ECM remodelling. METHODS: Five ECM biomarkers (VICM, BGM, EL-NE, C5M, Pro-C5) were measured by competitive ELISAs in serum from 72 CD patients, 60 UC patients, 22 patients with irritable bowel syndrome (IBS), and 24 healthy donors. One-way analysis of variance, Mann-Whitney U-test, logistic regression models, and receiver operator characteristics (ROC) curve analysis was carried out to evaluate the diagnostic accuracy of the biomarkers. RESULTS: The ECM remodelling was significantly different in UC compared to CD. The best biomarker combination to differentiate UC from CD and colonic CD was BGM and VICM (AUC = 0.98, P<0.001; AUC = 0.97, P<0.001), and the best biomarker combination to differentiate IBD from IBS patients were BGM, EL-NE, and Pro-C5 (AUC = 0.8, P<0.001). When correcting for the use of immunosuppressant and elevated CRP levels (CRP>5mg/mL), correlation of Pro-C5 (r = 0.36) with CDAI was slightly improved compared to CRP (r = 0.27) corrected for the use of immunosuppressant. Furthermore, BGM and EL-NE biomarkers were highly associated with colon inflammation in CD patients. CONCLUSION: ECM fragments of tissue remodelling in IBD affect UC and CD differently, and may aid in differentiating IBD from IBS (EL-NE, BGM, Pro-C5), and UC from CD patients (BGM, VICM). Formation of type V collagen is related to the level of inflammation in CD and may reflect disease activity in CD. PMID- 29028808 TI - Functional characterization of GABAA receptor-mediated modulation of cortical neuron network activity in microelectrode array recordings. AB - The numerous gamma-aminobutyric acid type A receptor (GABAAR) subtypes are differentially expressed and mediate distinct functions at neuronal level. In this study we have investigated GABAAR-mediated modulation of the spontaneous activity patterns of primary neuronal networks from murine frontal cortex by characterizing the effects induced by a wide selection of pharmacological tools at a plethora of activity parameters in microelectrode array (MEA) recordings. The basic characteristics of the primary cortical neurons used in the recordings were studied in some detail, and the expression levels of various GABAAR subunits were investigated by western blotting and RT-qPCR. In the MEA recordings, the pan GABAAR agonist muscimol and the GABABR agonist baclofen were observed to mediate phenotypically distinct changes in cortical network activity. Selective augmentation of alphabetagamma GABAAR signaling by diazepam and of delta containing GABAAR (delta-GABAAR) signaling by DS1 produced pronounced changes in the majority of the activity parameters, both drugs mediating similar patterns of activity changes as muscimol. The apparent importance of delta-GABAAR signaling for network activity was largely corroborated by the effects induced by the functionally selective delta-GABAAR agonists THIP and Thio-THIP, whereas the delta-GABAAR selective potentiator DS2 only mediated modest effects on network activity, even when co-applied with low THIP concentrations. Interestingly, diazepam exhibited dramatically right-shifted concentration-response relationships at many of the activity parameters when co-applied with a trace concentration of DS1 compared to when applied alone. In contrast, the potencies and efficacies displayed by DS1 at the networks were not substantially altered by the concomitant presence of diazepam. In conclusion, the holistic nature of the information extractable from the MEA recordings offers interesting insights into the contributions of various GABAAR subtypes/subgroups to cortical network activity and the putative functional interplay between these receptors in these neurons. PMID- 29028810 TI - Risk of exacerbation following pneumonia in adults with heart failure or chronic obstructive pulmonary disease. AB - BACKGROUND: Recent evidence demonstrates increased short-term risk of cardiac complications and respiratory failure among patients with heart failure (HF) and chronic obstructive pulmonary disease (COPD), respectively, concurrent with an episode of community-acquired pneumonia (CAP). We evaluated patients with pre existing HF or COPD, beginning 30 days after CAP diagnosis, to determine if CAP had a prolonged impact on their underlying comorbidity. METHODS: A retrospective matched-cohort design using US healthcare claims was employed. In each month of accrual, patients with HF or COPD who developed CAP ("CAP patients") were matched (1:1, without replacement, on demographic and clinical profiles) to patients with HF or COPD who did not develop CAP ("comparison patients"). All patients were aged >=40 years, and were pneumonia free during prior 1-year period. Exacerbation beginning 30 days after the CAP diagnosis and for the subsequent 1-year period were compared between CAP and comparison patients. FINDINGS: 38,010 (4.6%) HF patients and 48,703 (5.9%) COPD patients experienced a new CAP episode requiring hospitalization or outpatient care only, and were matched to comparison patients. In the HF subset, CAP patients were 47.2% more likely to experience an exacerbation vs patients without CAP (17.8% vs. 12.1%; p<0.001); in the COPD subset, CAP patients were 42.3% more likely to experience an exacerbation (16.2% vs. 11.4%; p<0.001). CONCLUSIONS: Our data provide evidence that CAP foreshadows a prolonged increase in risk of exacerbation of underlying HF or COPD in adults, and suggests a potential benefit to CAP prevention strategies. PMID- 29028809 TI - Nasal DNA methylation differentiates corticosteroid treatment response in pediatric asthma: A pilot study. AB - BACKGROUND: Treatment response to systemic corticosteroid in asthmatic children is heterogeneous and may be mediated by epigenetic mechanism(s). We aim to identify DNA methylation (DNAm) changes responsive to steroid, and DNAm biomarkers that distinguish treatment response. MATERIALS AND METHODS: We followed 33 children (ages 5-18) presenting to the Emergency Department (ED) for asthma exacerbation. Based on whether they met discharge criteria in <=24 hours, participants were grouped into good and poor responders to steroid treatment. Nasal samples were collected upon presentation to the ED (T0) and 18-24 hours later (T1). Genome-wide DNAm was measured for both time points in 20 subjects, and compared between T0 and T1 in good and poor responders respectively. DNAm at T1 was also compared between two responder groups. DNAm of selected CpGs was verified in the complete cohort, and expression of associated genes was examined. Interactions between DNAm, common single nucleotide polymorphism (SNP) located at the CpG sites and treatment responses were assessed. RESULTS: Three CpGs located in the OTX2 promoter showed responder-specific DNAm changes from T0 to T1, in which DNAm decreased in good but not in poor responders. Good and poor responders showed differential DNAm at T1 in 127 CpGs without and 182 CpGs with common SNP co-localization. Negative correlations between DNAm and gene expression were observed at CpGs located within the LDHC promoter, suggesting an impact of DNAm on gene regulation. Interactions between SNPs, DNAm and treatment response were detected. CONCLUSION: Acute systemic steroid treatment modifies nasal DNAm in good responders. Nasal DNAm, dependent or independent of SNPs, can differentiate response to treatment in acute asthmatic children. PMID- 29028811 TI - Elevated expression of HSP10 protein inhibits apoptosis and associates with poor prognosis of astrocytoma. AB - Astrocytoma is the most common type of primary malignant brain tumor, with pretty lowly 5-year survival rate in patients. Although extended surgical removal of the tumor and postoperative chemotherapy/radiotherapy executed, still there is large recurrence rate, mainly because diffuse glioma tumor cells ubiquitously infiltrate into normal parenchyma. So it becomes a priority to hunt novel molecular and signaling pathway targets to suppress astrocyma progression. HSP10, an important member of Heat shock proteins (Hsps) family, classically works as molecular chaperone folding or degradating of target proteins. Evolutionarily, HSP10 is also reported to be involved in immunomodulation and tumor progression. Poly (ADP-ribose) polymerase (PARP), important in DNA repair, is one of the main cleavage targets of caspase. And cleaved PARP (c-PARP) can serve as a marker of cells undergoing apoptosis. So far, whether the expression of HSP10 or c-PARP is associated with clinicopathologic implication for astrocytoma has not been reported. Meanwhile, it is unclear about the relationship between HSP10 and cell apoptosis. The purpose of this research is to elucidate the association between the expression of HSP10 and c-PARP and clinicopathological characteristics of astrocytoma by immunohistochemistry. The results showed that positive percentage of high HSP10 expression in astrocytoma 42/103, 40.8%) was significantly higher than that in the non-tumor control brain tissues (8/43, 18.6%) (P = 0.01). While no apparent difference of high c-PARP expression existed between astrocytoma and non-tumor control brain tissues. Furthermore, elevated expression of HSP10 was negative related to low expression of c-PARP (r = -0.224, P = 0.023), indicating high expression of HSP10 in astrocytoma inhibited apoptosis process effectively. And overexpression of HSP10 was proved to be the independent poor prognostic factor for astrocytoma by multivariate analysis. Taken together, our results suggest that elevated expression of HSP10 protein inhibits apoptosis and associates with poor prognosis of astrocytoma. PMID- 29028812 TI - Occurrence of the Middle East Respiratory Syndrome Coronavirus (MERS-CoV) across the Gulf Corporation Council countries: Four years update. AB - The emergence of the Middle East Respiratory Syndrome Coronavirus (MERS-CoV) infections has become a global issue of dire concerns. MERS-CoV infections have been identified in many countries all over the world whereas high level occurrences have been documented in the Middle East and Korea. MERS-CoV is mainly spreading across the geographical region of the Middle East, especially in the Arabian Peninsula, while some imported sporadic cases were reported from the Europe, North America, Africa, and lately Asia. The prevalence of MERS-CoV infections across the Gulf Corporation Council (GCC) countries still remains unclear. Therefore, the objective of the current study was to report the prevalence of MERS-CoV in the GCC countries and to also elucidate on its demographics in the Arabian Peninsula. To date, the World Health Organization (WHO) has reported 1,797 laboratory-confirmed cases of MERS-CoV infection since June 2012, involving 687 deaths in 27 different countries worldwide. Within a time span of 4 years from June 2012 to July 2016, we collect samples form MERS CoV infected individuals from National Guard Hospital, Riyadh, and Ministry of health Saudi Arabia and other GCC countries. Our data comprise a total of 1550 cases (67.1% male and 32.9% female). The age-specific prevalence and distribution of MERS-CoV was as follow: <20 yrs (36 cases: 3.28%), 20-39 yrs (331 cases: 30.15%), 40-59 yrs (314 cases: 28.60%), and the highest-risk elderly group aged >=60 yrs (417 cases: 37.98%). The case distribution among GCC countries was as follows: Saudi Arabia (1441 cases: 93%), Kuwait (4 cases: 0.3%), Bahrain (1 case: 0.1%), Oman (8 cases: 0.5%), Qatar (16 cases: 1.0%), and United Arab Emirates (80 cases: 5.2%). Thus, MERS-CoV was found to be more prevalent in Saudi Arabia especially in Riyadh, where 756 cases (52.4%) were the worst hit area of the country identified, followed by the western region Makkah where 298 cases (20.6%) were recorded. This prevalence update indicates that the Arabian Peninsula, particularly Saudi Arabia, is the hardest hit region regarding the emerging MERS CoV infections worldwide. GCC countries including Saudi Arabia now have the infrastructure in place that allows physicians and scientific community to identify and immediately respond to the potential risks posed by new outbreaks of MERS-CoV infections in the region. Given the continuum of emergence and the large magnitude of the disease in our region, more studies will be required to bolster capabilities for timely detection and effective control and prevention of MERS CoV in our region. PMID- 29028813 TI - Evaluation of shedding, tissue burdens, and humoral immune response in goats after experimental challenge with the virulent Brucella melitensis strain 16M and the reduced virulence vaccine strain Rev. 1. AB - Brucella melitensis is the causative agent of brucellosis in small ruminants and is of considerable economic and public health importance in many countries worldwide. The control of disease in humans depends on the control of disease in livestock; however, few counties with endemic B. melitensis infection have been able to successfully eradicate this pathogen. This underscores the need for further research on the pathogenesis of both virulent and vaccine strains of B. melitensis in the small ruminant host. The aim of the present study was to characterize clinical effects, tissue colonization, shedding, and humoral immune response following B. melitensis infection in goats. Both virulent (16M) and reduced virulence (Rev. 1) strains of B. melitensis were studied. Pregnant goats were infected at 11-14 weeks of gestation with 8 x 106 or 8 x 107 CFU of B. melitensis. Infection of goats with B. melitensis 16M resulted in an 86% abortion rate. This strain disseminated widely in pregnant does post-infection with none of the 15 sampled tissues spared from colonization. Importantly, we report the first isolation of B. melitensis from muscle tissue in ruminants. Pathogenesis of Rev. 1 infection was variable with two does showing minimal colonization and one doe exhibiting disease similar to that of animals infected with fully virulent 16M. Shedding of B. melitensis in milk occurred in all 16M- and Rev. 1- infected goats. In pregnant animals challenged with virulent B. melitensis, median time to seroconversion was 21 days; however, 2 animals did not seroconvert until after abortion. PMID- 29028814 TI - Diversity and microevolution of CRISPR loci in Helicobacter cinaedi. AB - Helicobacter cinaedi is associated with nosocomial infections. The CRISPR-Cas system provides adaptive immunity against foreign genetic elements. We investigated the CRISPR-Cas system in H. cinaedi to assess the potential of the CRISPR-based microevolution of H. cinaedi strains. A genotyping method based on CRISPR spacer organization was carried out using 42 H. cinaedi strains. The results of sequence analysis showed that the H. cinaedi strains used in this study had two CRISPR loci (CRISPR1 and CRISPR2). The lengths of the consensus direct repeat sequences in CRISPR1 and CRISPR2 were both 36 bp-long, and 224 spacers were found in the 42 H. cinaedi strains. Analysis of the organization and sequence similarity of the spacers of the H. cinaedi strains showed that CRISPR arrays could be divided into 7 different genotypes. Each genotype had a different ancestral spacer, and spacer acquisition/deletion events occurred while isolates were spreading. Spacer polymorphisms of conserved arrays across the strains were instrumental for differentiating closely-related strains collected from the same hospital. MLST had little variability, while the CRISPR sequences showed remarkable diversity. Our data revealed the structural features of H. cinaedi CRISPR loci for the first time. CRISPR sequences constitute a valuable basis for genotyping, provide insights into the divergence and relatedness between closely related strains, and reflect the microevolutionary process of H. cinaedi. PMID- 29028815 TI - Striatal astrocytes engulf dopaminergic debris in Parkinson's disease: A study in an animal model. AB - The role of astrocytes in Parkinson's disease is still not well understood. This work studied the astrocytic response to the dopaminergic denervation. Rats were injected in the lateral ventricles with 6-hydroxydopamine (25MUg), inducing a dopaminergic denervation of the striatum not accompanied by non-selective tissue damage. The dopaminergic debris were found within spheroids (free-spheroids) which retained some proteins of dopaminergic neurons (e.g., tyrosine hydroxylase, the dopamine transporter protein, and APP) but not others (e.g., alpha synuclein). Free-spheroids showed the initial (LC3-autophagosomes) but not the late (Lamp1/Lamp2-lysosomes) components of autophagy (incomplete autophagy), preparing their autophagosomes for an external phagocytosis (accumulation of phosphatidylserine). Free-spheroids were penetrated by astrocyte processes (fenestrated-spheroids) which made them immunoreactive for GFAP and S100beta, and which had some elements needed to continue the debris degradation (Lamp1/Lamp2). Finally, proteins normally found in neurons (TH, DAT and alpha-synuclein) were observed within astrocytes 2-5 days after the dopaminergic degeneration, suggesting that the intracellular contents of degenerated cells had been transferred to astrocytes. Taken together, present data suggest phagocytosis as a physiological role of striatal astrocytes, a role which could be critical for cleaning striatal debris during the initial stages of Parkinson's disease. PMID- 29028816 TI - Comparison of acute kidney injury between open and laparoscopic liver resection: Propensity score analysis. AB - The inflammatory response has been shown to be a major contributor to acute kidney injury. Considering that laparoscopic surgery is beneficial in reducing the inflammatory response, we compared the incidence of postoperative acute kidney injury between laparoscopic liver resection and open liver resection. Among 1173 patients who underwent liver resection surgery, 222 of 926 patients who underwent open liver resection were matched with 222 of 247 patients who underwent laparoscopic liver resection, by using propensity score analysis. The incidence of postoperative acute kidney injury assessed according to the creatinine criteria of the Kidney Disease: Improving Global Outcomes definition was compared between those 1:1 matched groups. A total 77 (6.6%) cases of postoperative acute kidney injury occurred. Before matching, the incidence of acute kidney injury after laparoscopic liver resection was significantly lower than that after open liver resection [1.6% (4/247) vs. 7.9% (73/926), P < 0.001]. After 1:1 matching, the incidence of postoperative acute kidney injury was still significantly lower after laparoscopic liver resection than after open liver resection [1.8% (4/222) vs. 6.3% (14/222), P = 0.008; odds ratio 0.273, 95% confidence interval 0.088-0.842, P = 0.024]. The postoperative inflammatory marker was also lower in laparoscopic liver resection than in open liver resection in matched set data (white blood cell count 12.7 +/- 4.0 * 103/MUL vs. 14.9 +/- 3.9 * 103/MUL, P < 0.001). Our findings suggest that the laparoscopic technique, by decreasing the inflammatory response, may reduce the occurrence of postoperative acute kidney injury during liver resection surgery. PMID- 29028818 TI - Floral structure and ontogeny of Syndiclis (Lauraceae). AB - Generic delimitation in the Beilschmiedia group of the Lauraceae remains ambiguous because flowering specimens of a few genera with confined distribution are poorly represented in herbaria, and a few floral characters important for taxonomy are still poorly known. Syndiclis is sporadically distributed in southwestern China, and is represented in the herbaria by only a few flowering specimens. We conducted field investigations to collect floral materials of four species and observed structures and ontogeny of the tiny flowers using both light microscopy (LM) and scanning electron microscopy (SEM). The results show that the genus Syndiclis possesses flowers with huge variation in both merosity and organ number. Flowers of the genus are dimerous, trimerous, or tetramerous, or have mixed merosity with monomerous and dimerous, or dimerous and trimerous, or trimerous and tetramerous whorls. The number of staminodes ranges from two to eight, depending on floral merosity, and on how many stamens of the third androecial whorl are reduced to staminodes. The staminodes of the fourth androecial whorl are comparable to the staminodes in Potameia, but the staminodes of the third androecial whorl of Syndiclis are relatively larger than the staminodes in Potameia. They are erect or curved inwards, covering the ovary. The anthers are usually two-locular, but rarely one-locular or three-locular. Each stamen of the third androecial whorl bears two conspicuous and enlarged glands at the base. The lability of floral merosity and organ number of Syndiclis may have been caused by changes of pollination system and loss of special selective pressures that are present in most Lauraceous plants with fixed floral organ number. This study furthers our understanding of variation and evolution of a few important characters of the Beilschmiedia group and provides essential data for a revised generic classification of the group. PMID- 29028817 TI - Mitochondrial dysfunction in the gastrointestinal mucosa of children with autism: A blinded case-control study. AB - Gastrointestinal (GI) symptoms are prevalent in autism spectrum disorder (ASD) but the pathophysiology is poorly understood. Imbalances in the enteric microbiome have been associated with ASD and can cause GI dysfunction potentially through disruption of mitochondrial function as microbiome metabolites modulate mitochondrial function and mitochondrial dysfunction is highly associated with GI symptoms. In this study, we compared mitochondrial function in rectal and cecum biopsies under the assumption that certain microbiome metabolites, such as butyrate and propionic acid, are more abundant in the cecum as compared to the rectum. Rectal and cecum mucosal biopsies were collected during elective diagnostic colonoscopy. Using a single-blind case-control design, complex I and IV and citrate synthase activities and complex I-V protein quantity from 10 children with ASD, 10 children with Crohn's disease and 10 neurotypical children with nonspecific GI complaints were measured. The protein for all complexes, except complex II, in the cecum as compared to the rectum was significantly higher in ASD samples as compared to other groups. For both rectal and cecum biopsies, ASD samples demonstrated higher complex I activity, but not complex IV or citrate synthase activity, compared to other groups. Mitochondrial function in the gut mucosa from children with ASD was found to be significantly different than other groups who manifested similar GI symptomatology suggesting a unique pathophysiology for GI symptoms in children with ASD. Abnormalities localized to the cecum suggest a role for imbalances in the microbiome, potentially in the production of butyrate, in children with ASD. PMID- 29028819 TI - The anti-myeloma activity of bone morphogenetic protein 2 predominantly relies on the induction of growth arrest and is apoptosis-independent. AB - Multiple myeloma (MM), a malignancy of the bone marrow, is characterized by a pathological increase in antibody-producing plasma cells and an increase in immunoglobulins (plasmacytosis). In recent years, bone morphogenetic proteins (BMPs) have been reported to be activators of apoptotic cell death in neoplastic B cells in MM. Here, we use bone morphogenetic protein 2 (BMP2) to show that the "apoptotic" effect of BMPs on human neoplastic B cells is dominated by anti proliferative activities and cell cycle arrest and is apoptosis-independent. The anti-proliferative effect of BMP2 was analysed in the human cell lines KMS12-BM and L363 using WST-1 and a Coulter counter and was confirmed using CytoTox assays with established inhibitors of programmed cell death (zVAD-fmk and necrostatin 1). Furthermore, apoptotic activity was compared in both cell lines employing western blot analysis for caspase 3 and 8 in cells treated with BMP2 and FasL. Additionally, expression profiles of marker genes of different cell death pathways were analysed in both cell lines after stimulation with BMP2 for 48h using an RT-PCR-based array. In our experiments we observed that there was rather no reduction in absolute cell number, but cells stopped proliferating following treatment with BMP2 instead. The time frame (48-72 h) after BMP2 treatment at which a reduction in cell number is detectable is too long to indicate a directly BMP2-triggered apoptosis. Moreover, in comparison to robust apoptosis induced by the approved apoptotic factor FasL, BMP2 only marginally induced cell death. Consistently, neither the known inhibitor of apoptotic cell death zVAD-fmk nor the necroptosis inhibitor necrostatin-1 was able to rescue myeloma cell growth in the presence of BMP2. PMID- 29028820 TI - A C-terminal motif contributes to the plasma membrane localization of Arabidopsis STP transporters. AB - Membrane trafficking is highly organized to maintain cellular homeostasis in any organisms. Membrane-embedded transporters are targeted to various organelles to execute appropriate partition and allocation of their substrates, such as ions or sugars. To ensure the fidelity of targeting and sorting, membrane proteins including transporters have sorting signals that specify the subcellular destination and the trafficking pathway by which the destination is to be reached. Here, we have identified a novel sorting signal (called the tri-aromatic motif) which contains three aromatic residues, two tryptophans and one histidine, for the plasma membrane localization of sugar transporters in the STP family in Arabidopsis. We firstly found that a C-terminal deletion disrupted the sugar uptake activity of STP1 in yeast cells. Additional deletion and mutation analyses demonstrated that the three aromatic residues in the C-terminus, conserved among all Arabidopsis STP transporters, were critical for sugar uptake by not only STP1 but also another STP transporter STP13. We observed that, when the tri-aromatic motif was mutated, STP1 was largely localized at the endomembrane compartments in yeast cells, indicating that this improper subcellular localization led to the loss of sugar absorption. Importantly, our further analyses uncovered that mutations of the tri-aromatic motif resulted in the endoplasmic reticulum (ER) retention of STP1 and STP13 in plant cells, suggesting that this motif is involved at the step of ER exit of STP transporters to facilitate their plasma membrane localization. Together, we here identified a novel ER export signal, and showed that appropriate sorting via the tri-aromatic motif is important for sugar absorption by STP transporters. PMID- 29028821 TI - Load-sensitive impairment of working memory for biological motion in schizophrenia. AB - Impaired working memory (WM) is a core cognitive deficit in schizophrenia. Nevertheless, past studies have reported that patients may also benefit from increasing salience of memory stimuli. Such efficient encoding largely depends upon precise perception. Thus an investigation on the relationship between perceptual processing and WM would be worthwhile. Here, we used biological motion (BM), a socially relevant stimulus that schizophrenics have difficulty discriminating from similar meaningless motions, in a delayed-response task. Non BM stimuli and static polygons were also used for comparison. In each trial, one of the three types of stimuli was presented followed by two probes, with a short delay in between. Participants were asked to indicate whether one of them was identical to the memory item or both were novel. The number of memory items was one or two. Healthy controls were more accurate in recognizing BM than non-BM regardless of memory loads. Patients with schizophrenia exhibited similar accuracy patterns to those of controls in the Load 1 condition only. These results suggest that information contained in BM could facilitate WM encoding in general, but the effect is vulnerable to the increase of cognitive load in schizophrenia, implying inefficient encoding driven by imprecise perception. PMID- 29028822 TI - Serial-omics characterization of equine urine. AB - Horse urine is easily collected and contains molecules readily measurable using mass spectrometry that can be used as biomarkers representative of health, disease or drug tampering. This study aimed at analyzing microliter levels of horse urine to purify, identify and quantify proteins, polar metabolites and non polar lipids. Urine from a healthy 12 year old quarter horse mare on a diet of grass hay and vitamin/mineral supplements with limited pasture access was collected for serial-omics characterization. The urine was treated with methyl tert-butyl ether (MTBE) and methanol to partition into three distinct layers for protein, non-polar lipid and polar metabolite content from a single liquid-liquid extraction and was repeated two times. Each layer was analyzed by high performance liquid chromatography-high resolution tandem mass spectrometry (LC MS/MS) to obtain protein sequence and relative protein levels as well as identify and quantify small polar metabolites and lipids. The results show 46 urine proteins, many related to normal kidney function, structural and circulatory proteins as well as 474 small polar metabolites but only 10 lipid molecules. Metabolites were mostly related to urea cycle and ammonia recycling as well as amino acid related pathways, plant diet specific molecules, etc. The few lipids represented triglycerides and phospholipids. These data show a complete mass spectrometry based-omics characterization of equine urine from a single 333 MUL mid-stream urine aliquot. These omics data help serve as a baseline for healthy mare urine composition and the analyses can be used to monitor disease progression, health status, monitor drug use, etc. PMID- 29028823 TI - Novel mutations in Darier disease and association to self-reported disease severity. AB - Darier disease is a rare and severe autosomal dominant skin disease characterised by malodorous keratotic papules in seborrheic areas of the skin. Darier disease affects up to 1 in 30 000 people and is caused by mutations in the ATP2A2 gene, which encodes to the sarco/endoplasmic reticulum calcium-ATPase isoform 2 that pumps calcium into the endoplasmic reticulum. Although many ATP2A2 variants have been described, it is not known if genotype correlates with phenotype, which could be important for prognosis and treatment. This is the first study to use whole exome sequencing to screen the ATP2A2 gene in a cohort of 28 clinically diagnosed Darier disease patients. Twenty-one different disease causing variants were identified and 15 of these were novel. Sixteen of the 21 variants were predicted to be pathogenic using in silico prediction programs. There were seven missense, four intronic/splice-sites, three frameshifts, two in-frame deletions, four nonsense and one synonymous mutations. This study also found ten patients who harbour more than one ATP2A2 variant. The phenotype of the patient cohort was assessed by photography and by patient questionnaires. The genotype-phenotype association was examined for all variants in relation to the patient's disease severity score, and no correlation could be established. PMID- 29028824 TI - The association between serum brain-derived neurotrophic factor and a cluster of cardiovascular risk factors in adolescents: The CHAMPS-study DK. AB - BACKGROUND AND OBJECTIVE: Cardiovascular disease and type 2 diabetes pose a global health burden. Therefore, clarifying the pathology of these risk factors is essential. Previous studies have found positive and negative associations between one or more cardiovascular risk factors and brain-derived neurotrophic factor (BDNF) probably due to diverse methodological approaches when analysing peripheral BDNF levels. Moreover, only a few studies have been performed in youth populations. Consequently, the main objective of this study was to examine the association between serum BDNF and a composite z-score consisting of six cardiovascular risk factors. A secondary aim was to examine the associations between serum BDNF and each of the six risk factors. METHODS: Four hundred and forty-seven apparently healthy adolescents between 11-17 years of age participated in this cross-sectional study. Cardiorespiratory fitness (CRF), anthropometrics, pubertal status, blood pressure (BP), serum BDNF, high-density lipoprotein cholesterol (HDL-C), triglyceride (TG), blood glucose and insulin were measured. Information about alcohol consumption and socio-economic status was collected via questionnaires. Associations were modelled using linear regression analysis. RESULTS: Serum BDNF was positively associated with the composite z-score in the total study sample (standardized beta coefficient (std.beta) = 0.10, P = 0.037). In males, serum BDNF was positively associated with the composite z-score (Std. beta = 0.14, P = 0.034) and HOMA-IR (Std. beta = 0.19, P = 0.004), and negatively associated with CRF (Std. beta = -0.15, P = 0.026). In females, BDNF was positively associated with TG (Std. beta = 0.14, P = 0.030) and negatively associated with waist circumference (WC) (Std. beta = 0.16, P = 0.012). CONCLUSION: Serum BDNF was positively associated with a composite z-score of cardiovascular risk factors. This association seems to be mainly driven by the association between TG, HOMA-IR and serum BDNF, and particularly for males. Further longitudinal research is warranted to determine the temporal relationship between BDNF and cardiovascular risk factors. PMID- 29028825 TI - Specvis: Free and open-source software for visual field examination. AB - Visual field impairment affects more than 100 million people globally. However, due to the lack of the access to appropriate ophthalmic healthcare in undeveloped regions as a result of associated costs and expertise this number may be an underestimate. Improved access to affordable diagnostic software designed for visual field examination could slow the progression of diseases, such as glaucoma, allowing for early diagnosis and intervention. We have developed Specvis, a free and open-source application written in Java programming language that can run on any personal computer to meet this requirement (http://www.specvis.pl/). Specvis was tested on glaucomatous, retinitis pigmentosa and stroke patients and the results were compared to results using the Medmont M700 Automated Static Perimeter. The application was also tested for inter-test intrapersonal variability. The results from both validation studies indicated low inter-test intrapersonal variability, and suitable reliability for a fast and simple assessment of visual field impairment. Specvis easily identifies visual field areas of zero sensitivity and allows for evaluation of its levels throughout the visual field. Thus, Specvis is a new, reliable application that can be successfully used for visual field examination and can fill the gap between confrontation and perimetry tests. The main advantages of Specvis over existing methods are its availability (free), affordability (runs on any personal computer), and reliability (comparable to high-cost solutions). PMID- 29028828 TI - ISED: Constructing a high-resolution elevation road dataset from massive, low quality in-situ observations derived from geosocial fitness tracking data. AB - Gaining access to inexpensive, high-resolution, up-to-date, three-dimensional road network data is a top priority beyond research, as such data would fuel applications in industry, governments, and the broader public alike. Road network data are openly available via user-generated content such as OpenStreetMap (OSM) but lack the resolution required for many tasks, e.g., emergency management. More importantly, however, few publicly available data offer information on elevation and slope. For most parts of the world, up-to-date digital elevation products with a resolution of less than 10 meters are a distant dream and, if available, those datasets have to be matched to the road network through an error-prone process. In this paper we present a radically different approach by deriving road network elevation data from massive amounts of in-situ observations extracted from user-contributed data from an online social fitness tracking application. While each individual observation may be of low-quality in terms of resolution and accuracy, taken together they form an accurate, high-resolution, up-to-date, three-dimensional road network that excels where other technologies such as LiDAR fail, e.g., in case of overpasses, overhangs, and so forth. In fact, the 1m spatial resolution dataset created in this research based on 350 million individual 3D location fixes has an RMSE of approximately 3.11m compared to a LiDAR-based ground-truth and can be used to enhance existing road network datasets where individual elevation fixes differ by up to 60m. In contrast, using interpolated data from the National Elevation Dataset (NED) results in 4.75m RMSE compared to the base line. We utilize Linked Data technologies to integrate the proposed high-resolution dataset with OpenStreetMap road geometries without requiring any changes to the OSM data model. PMID- 29028826 TI - Identification of cis-regulatory sequences reveals potential participation of lola and Deaf1 transcription factors in Anopheles gambiae innate immune response. AB - The innate immune response of Anopheles gambiae involves the transcriptional upregulation of effector genes. Therefore, the cis-regulatory sequences and their cognate binding factors play essential roles in the mosquito's immune response. However, the genetic control of the mosquito's innate immune response is not yet fully understood. To gain further insight on the elements, the factors and the potential mechanisms involved, an open chromatin profiling was carried out on A. gambiae-derived immune-responsive cells. Here, we report the identification of cis-regulatory sites, immunity-related transcription factor binding sites, and cis-regulatory modules. A de novo motif discovery carried out on this set of cis regulatory sequences identified immunity-related motifs and cis-regulatory modules. These modules contain motifs that are similar to binding sites for REL-, STAT-, lola- and Deaf1-type transcription factors. Sequence motifs similar to the binding sites for GAGA were found within a cis-regulatory module, together with immunity-related transcription factor binding sites. The presence of Deaf1- and lola-type binding sites, along with REL- and STAT-type binding sites, suggests that the immunity function of these two factors could have been conserved both in Drosophila and Anopheles gambiae. PMID- 29028827 TI - P. falciparum infection and maternofetal antibody transfer in malaria-endemic settings of varying transmission. AB - INTRODUCTION: During pregnancy, immunoglobulin G (IgG) is transferred from the mother to the fetus, providing protection from disease in early infancy. Plasmodium falciparum infections may reduce maternofetal antibody transfer efficiency, but mechanisms remain unclear. METHODS: Mother-cord paired serum samples collected at delivery from Papua New Guinea (PNG) and the Thailand Myanmar Border Area (TMBA) were tested for IgG1 and IgG3 to four P. falciparum antigens and measles antigen, as well as total serum IgG. Multivariable linear regression was conducted to assess the association of peripheral P. falciparum infection during pregnancy or placental P. falciparum infection assessed at delivery with maternofetal antibody transfer efficiency. Path analysis assessed the extent to which associations between P. falciparum infection and antibody transfer were mediated by gestational age at delivery or levels of maternal total serum IgG. RESULTS: Maternofetal antibody transfer efficiency of IgG1 and IgG3 was lower in PNG compared to TMBA (mean difference in cord antibody levels (controlling for maternal antibody levels) ranged from -0.88 to 0.09, median of 0.20 log2 units). Placental P. falciparum infections were associated with substantially lower maternofetal antibody transfer efficiency in PNG primigravid women (mean difference in cord antibody levels (controlling for maternal antibody levels) ranged from -0.62 to -0.10, median of -0.36 log2 units), but not multigravid women. The lower antibody transfer efficiency amongst primigravid women with placental infection was only partially mediated by gestational age at delivery (proportion indirect effect ranged from 0% to 18%), whereas no mediation effects of maternal total serum IgG were observed. DISCUSSION: Primigravid women may be at risk of impaired maternofetal antibody transport with placental P. falciparum infection. Direct effects of P. falciparum on the placenta, rather than earlier gestational age and elevated serum IgG, are likely responsible for the majority of the reduction in maternofetal antibody transfer efficiency with placental infection. PMID- 29028829 TI - Sodium excretion is higher in patients with rheumatoid arthritis than in matched controls. AB - OBJECTIVE: It was shown that sodium can promote auto-immunity through the activation of the Th17 pathway. We aimed to compare sodium intake in patients with rheumatoid arthritis (RA) vs. matched controls. METHODS: This case-control study included 24 patients with RA at diagnosis and 24 controls matched by age, gender and body mass index. Sodium intake was evaluated by 24-hr urinary sodium excretion. RESULTS: Sodium excretion was greater for patients with early RA (2,849+/-1,350 vs. 2,182+/-751.7mg/day, p = 0.039) than controls. This difference remained significant after adjustment for smoking and the use of anti hypertensive and nonsteroidal anti-inflammatory drugs (p = 0.043). Patients with radiographic erosion at the time of diagnosis had a higher sodium excretion than those without (p = 0.028). CONCLUSION: Patients with early RA showed increased sodium excretion which may have contributed to autoimmunity. PMID- 29028830 TI - ER stress and subsequent activated calpain play a pivotal role in skeletal muscle wasting after severe burn injury. AB - Severe burns are typically followed by hypermetabolism characterized by significant muscle wasting, which causes considerable morbidity and mortality. The aim of the present study was to explore the underlying mechanisms of skeletal muscle damage/wasting post-burn. Rats were randomized to the sham, sham+4 phenylbutyrate (4-PBA, a pharmacological chaperone promoting endoplasmic reticulum (ER) folding/trafficking, commonly considered as an inhibitor of ER), burn (30% total body surface area), and burn+4-PBA groups; and sacrificed at 1, 4, 7, 14 days after the burn injury. Tibial anterior muscle was harvested for transmission electron microscopy, calcium imaging, gene expression and protein analysis of ER stress / ubiquitin-proteasome system / autophagy, and calpain activity measurement. The results showed that ER stress markers were increased in the burn group compared with the sham group, especially at post-burn days 4 and 7, which might consequently elevate cytoplasmic calcium concentration, promote calpain production as well as activation, and cause skeletal muscle damage/wasting of TA muscle after severe burn injury. Interestingly, treatment with 4-PBA prevented burn-induced ER swelling and altered protein expression of ER stress markers and calcium release, attenuating calpain activation and skeletal muscle damage/wasting after severe burn injury. Atrogin-1 and LC3-II/LC3 I ratio were also increased in the burn group compared with the sham group, while MuRF-1 remained unchanged; 4-PBA decreased atrogin-1 in the burn group. Taken together, these findings suggested that severe burn injury induces ER stress, which in turns causes calpain activation. ER stress and subsequent activated calpain play a critical role in skeletal muscle damage/wasting in burned rats. PMID- 29028832 TI - Correction: Use of the 22C3 anti-PD-L1 antibody to determine PD-L1 expression in multiple automated immunohistochemistry platforms. AB - [This corrects the article DOI: 10.1371/journal.pone.0183023.]. PMID- 29028831 TI - Short-term vitamin E treatment impairs reactive oxygen species signaling required for adipose tissue expansion, resulting in fatty liver and insulin resistance in obese mice. AB - OBJECTIVES: The use of antioxidant therapy in the treatment of oxidative stress related diseases such as cardiovascular disease, diabetes or obesity remains controversial. Our aim is to demonstrate that antioxidant supplementation may promote negative effects if used before the establishment of oxidative stress due to a reduced ROS generation under physiological levels, in a mice model of obesity. METHODS: C57BL/6J mice were fed with a high-fat diet for 14 weeks, with (OE group) or without (O group) vitamin E supplementation. RESULTS: O mice developed a mild degree of obesity, which was not enough to induce metabolic alterations or oxidative stress. These animals exhibited a healthy expansion of retroperitoneal white adipose tissue (rpWAT) and the liver showed no signs of lipotoxicity. Interestingly, despite achieving a similar body weight, OE mice were insulin resistant. In the rpWAT they presented a reduced generation of ROS, even below physiological levels (C: 1651.0 +/- 212.0; O: 3113 +/- 284.7; OE: 917.6 +/-104.4 RFU/mg protein. C vs OE p< 0.01). ROS decay may impair their action as second messengers, which could account for the reduced adipocyte differentiation, lipid transport and adipogenesis compared to the O group. Together, these processes limited the expansion of this fat pad and as a consequence, lipid flux shifted towards the liver, causing steatosis and hepatomegaly, which may contribute to the marked insulin resistance. CONCLUSIONS: This study provides in vivo evidence for the role of ROS as second messengers in adipogenesis, lipid metabolism and insulin signaling. Reducing ROS generation below physiological levels when the oxidative process has not yet been established may be the cause of the controversial results obtained by antioxidant therapy. PMID- 29028834 TI - Validation of a theoretically motivated approach to measuring childhood socioeconomic circumstances in the Health and Retirement Study. AB - Childhood socioeconomic status (cSES) is a powerful predictor of adult health, but its operationalization and measurement varies across studies. Using Health and Retirement Study data (HRS, which is nationally representative of community residing United States adults aged 50+ years), we specified theoretically motivated cSES measures, evaluated their reliability and validity, and compared their performance to other cSES indices. HRS respondent data (N = 31,169, interviewed 1992-2010) were used to construct a cSES index reflecting childhood social capital (cSC), childhood financial capital (cFC), and childhood human capital (cHC), using retrospective reports from when the respondent was <16 years (at least 34 years prior). We assessed internal consistency reliability (Cronbach's alpha) for the scales (cSC and cFC), and construct validity, and predictive validity for all measures. Validity was assessed with hypothesized correlates of cSES (educational attainment, measured adult height, self-reported childhood health, childhood learning problems, childhood drug and alcohol problems). We then compared the performance of our validated measures with other indices used in HRS in predicting self-rated health and number of depressive symptoms, measured in 2010. Internal consistency reliability was acceptable (cSC = 0.63, cFC = 0.61). Most measures were associated with hypothesized correlates (for example, the association between educational attainment and cSC was 0.01, p < 0.0001), with the exception that measured height was not associated with cFC (p = 0.19) and childhood drug and alcohol problems (p = 0.41), and childhood learning problems (p = 0.12) were not associated with cHC. Our measures explained slightly more variability in self-rated health (adjusted R2 = 0.07 vs. <0.06) and number of depressive symptoms (adjusted R2 > 0.05 vs. < 0.04) than alternative indices. Our cSES measures use latent variable models to handle item-missingness, thereby increasing the sample size available for analysis compared to complete case approaches (N = 15,345 vs. 8,248). Adopting this type of theoretically motivated operationalization of cSES may strengthen the quality of research on the effects of cSES on health outcomes. PMID- 29028833 TI - Merkel cell polyomavirus recruits MYCL to the EP400 complex to promote oncogenesis. AB - Merkel cell carcinoma (MCC) frequently contains integrated copies of Merkel cell polyomavirus DNA that express a truncated form of Large T antigen (LT) and an intact Small T antigen (ST). While LT binds RB and inactivates its tumor suppressor function, it is less clear how ST contributes to MCC tumorigenesis. Here we show that ST binds specifically to the MYC homolog MYCL (L-MYC) and recruits it to the 15-component EP400 histone acetyltransferase and chromatin remodeling complex. We performed a large-scale immunoprecipitation for ST and identified co-precipitating proteins by mass spectrometry. In addition to protein phosphatase 2A (PP2A) subunits, we identified MYCL and its heterodimeric partner MAX plus the EP400 complex. Immunoprecipitation for MAX and EP400 complex components confirmed their association with ST. We determined that the ST-MYCL EP400 complex binds together to specific gene promoters and activates their expression by integrating chromatin immunoprecipitation with sequencing (ChIP seq) and RNA-seq. MYCL and EP400 were required for maintenance of cell viability and cooperated with ST to promote gene expression in MCC cell lines. A genome wide CRISPR-Cas9 screen confirmed the requirement for MYCL and EP400 in MCPyV positive MCC cell lines. We demonstrate that ST can activate gene expression in a EP400 and MYCL dependent manner and this activity contributes to cellular transformation and generation of induced pluripotent stem cells. PMID- 29028835 TI - Hydrogen peroxide yields mechanistic insights into human mRNA capping enzyme function. AB - Capping of nascent RNA polymerase II (Pol II) transcripts is required for gene expression and the first two steps are catalyzed by separate 5' triphosphatase and guanylyltransferase activities of the human capping enzyme (HCE). The cap is added co-transcriptionally, but how the two activities are coordinated is unclear. Our previous in vitro work has suggested that an unidentified factor modulates the minimum length at which nascent transcripts can be capped. Using the same well-established in vitro system with hydrogen peroxide as a capping inhibitor, we show that this unidentified factor targets the guanylyltransferase activity of HCE. We also uncover the mechanism of HCE inhibition by hydrogen peroxide, and by using mass spectrometry demonstrate that the active site cysteine residue of the HCE triphosphatase domain becomes oxidized. Using recombinant proteins for the two separated HCE domains, we provide evidence that the triphosphatase normally acts on transcripts shorter than can be acted upon by the guanylyltransferase. Our further characterization of the capping reaction dependence on transcript length and its interaction with the unidentified modulator of capping raises the interesting possibility that the capping reaction could be regulated. PMID- 29028836 TI - Affected pathways and transcriptional regulators in gene expression response to an ultra-marathon trail: Global and independent activity approaches. AB - Gene expression (GE) analyses on blood samples from marathon and half-marathon runners have reported significant impacts on the immune and inflammatory systems. An ultra-marathon trail (UMT) represents a greater effort due to its more testing conditions. For the first time, we report the genome-wide GE profiling in a group of 16 runners participating in an 82 km UMT competition. We quantified their differential GE profile before and after the race using HuGene2.0st microarrays (Affymetrix Inc., California, US). The results obtained were decomposed by means of an independent component analysis (ICA) targeting independent expression modes. We observed significant differences in the expression levels of 5,084 protein coding genes resulting in an overrepresentation of 14% of the human biological pathways from the Kyoto Encyclopedia of Genes and Genomes database. These were mainly clustered on terms related with protein synthesis repression, altered immune system and infectious diseases related mechanisms. In a second analysis, 27 out of the 196 transcriptional regulators (TRs) included in the Open Regulatory Annotation database were overrepresented. Among these TRs, we identified transcription factors from the hypoxia-inducible factors (HIF) family EPAS1 (p< 0.01) and HIF1A (p<0.001), and others jointly described in the gluconeogenesis program such as HNF4 (p< 0.001), EGR1 (p<0.001), CEBPA (p< 0.001) and a highly specific TR, YY1 (p<0.01). The five independent components, obtained from ICA, further revealed a down-regulation of 10 genes distributed in the complex I, III and V from the electron transport chain. This mitochondrial activity reduction is compatible with HIF-1 system activation. The vascular endothelial growth factor (VEGF) pathway, known to be regulated by HIF, also emerged (p<0.05). Additionally, and related to the brain rewarding circuit, the endocannabinoid signalling pathway was overrepresented (p<0.05). PMID- 29028837 TI - A pilot study for robot appearance preferences among high-functioning individuals with autism spectrum disorder: Implications for therapeutic use. AB - Recent rapid technological advances have enabled robots to fulfill a variety of human-like functions, leading researchers to propose the use of such technology for the development and subsequent validation of interventions for individuals with autism spectrum disorder (ASD). Although a variety of robots have been proposed as possible therapeutic tools, the physical appearances of humanoid robots currently used in therapy with these patients are highly varied. Very little is known about how these varied designs are experienced by individuals with ASD. In this study, we systematically evaluated preferences regarding robot appearance in a group of 16 individuals with ASD (ages 10-17). Our data suggest that there may be important differences in preference for different types of robots that vary according to interaction type for individuals with ASD. Specifically, within our pilot sample, children with higher-levels of reported ASD symptomatology reported a preference for specific humanoid robots to those perceived as more mechanical or mascot-like. The findings of this pilot study suggest that preferences and reactions to robotic interactions may vary tremendously across individuals with ASD. Future work should evaluate how such differences may be systematically measured and potentially harnessed to facilitate meaningful interactive and intervention paradigms. PMID- 29028838 TI - Sequentially optimized reconstruction strategy: A meta-strategy for perimetry testing. AB - Perimetry testing is an automated method to measure visual function and is heavily used for diagnosing ophthalmic and neurological conditions. Its working principle is to sequentially query a subject about perceived light using different brightness levels at different visual field locations. At a given location, this query-patient-feedback process is expected to converge at a perceived sensitivity, such that a shown stimulus intensity is observed and reported 50% of the time. Given this inherently time-intensive and noisy process, fast testing strategies are necessary in order to measure existing regions more effectively and reliably. In this work, we present a novel meta-strategy which relies on the correlative nature of visual field locations in order to strongly reduce the necessary number of locations that need to be examined. To do this, we sequentially determine locations that most effectively reduce visual field estimation errors in an initial training phase. We then exploit these locations at examination time and show that our approach can easily be combined with existing perceived sensitivity estimation schemes to speed up the examinations. Compared to state-of-the-art strategies, our approach shows marked performance gains with a better accuracy-speed trade-off regime for both mixed and sub populations. PMID- 29028839 TI - Interaction of the Human Respiratory Syncytial Virus matrix protein with cellular adaptor protein complex 3 plays a critical role in trafficking. AB - Human Respiratory Syncytial Virus (HRSV) is a leading cause of bronchopneumonia in infants and the elderly. To date, knowledge of viral and host protein interactions within HRSV is limited and are critical areas of research. Here, we show that HRSV Matrix (M) protein interacts with the cellular adaptor protein complex 3 specifically via its medium subunit (AP-3Mu3A). This novel protein protein interaction was first detected via yeast-two hybrid screen and was further confirmed in a mammalian system by immunofluorescence colocalization and co-immunoprecipitation. This novel interaction is further substantiated by the presence of a known tyrosine-based adaptor protein MU subunit sorting signal sequence, YXXF: where F is a bulky hydrophobic residue, which is conserved across the related RSV M proteins. Analysis of point-mutated HRSV M derivatives indicated that AP-3Mu3A- mediated trafficking is contingent on the presence of the tyrosine residue within the YXXL sorting sequence at amino acids 197-200 of the M protein. AP-3Mu3A is up regulated at 24 hours post-infection in infected cells versus mock-infected HEp2 cells. Together, our data suggests that the AP-3 complex plays a critical role in the trafficking of HRSV proteins specifically matrix in epithelial cells. The results of this study add new insights and targets that may lead to the development of potential antivirals and attenuating mutations suitable for candidate vaccines in the future. PMID- 29028840 TI - Polymorphism of keratin 1 associates with systemic lupus erythematosus and systemic sclerosis in a south Chinese population. AB - Both systemic lupus erythematosus (SLE) and systemic sclerosis (SSc) diseases are related to the genetic and environmental factors, causing damage to the skin. The mutations of keratin 1 gene (KRT1) were reported to associate with skin diseases. The single-nucleotide polymorphism (SNP, rs14024) and the indel polymorphism (cds indel, rs267607656), consisting mostly of the common haplotypes and could be used for genotyping of KRT1. We used the PCR with sequence specific primers (PCR-SSP) to determine the genotype of KRT1 in 164 SLE, 99 SSc patients, and 418 healthy controls. The results showed that the mutant with G at SNP rs14024 was associated with the high risk to SLE (p = 6.48*10-5) and SSc (p = 8.75*10-5), while the deletion allele at rs267607656 was associated with the low risk to SSc (p = 4.89*10-4) comparing to the normal controls. Haplogenotype, Del-/MU+ was associated with high susceptibility to SLE (OR = 1.87, p = 0.001) and SSc (OR = 2.29, p = 2.34*10-4). In contrast, the Haplogenotype Del+/MU- was associated with resistance to SLE (OR = 0.35, p = 6.24*10-5) and SSc (OR = 0.34, p = 0.001). This study demonstrates that the variations in KRT1 and the specific polymorphism of KRT1 in this Chinese Han population are associated with autoimmune diseases SLE and SSc. Typing KRT1 might be helpful to identify SLE and SSc patients. PMID- 29028841 TI - Efficacies of prevention and control measures applied during an outbreak in Southwest Madrid, Spain. AB - Leishmaniasis is a vector-borne disease of worldwide distribution, currently present in 98 countries. Since late 2010, an unusual increase of human visceral and cutaneous leishmaniasis cases has been observed in the south-western Madrid region, totaling more than 600 cases until 2015. Some hosts, such as human, domestic dog and cat, rabbit (Oryctolagus cuniculus), and hare (Lepus granatensis), were found infected by the parasite of this disease in the area. Hares were described as the most important reservoir due to their higher prevalence, capacity to infect the vector, and presence of the same strains as in humans. Various measures were adopted to prevent and control the disease, and since 2013 there was a slight decline in the human sickness. We used a mathematical model to evaluate the efficacy of each measure in reducing the number of infected hosts. We identified in the present model that culling both hares and rabbits, without immediate reposition of the animals, was the best measure adopted, decreasing the proportion of all infected hosts. Particularly, culling hares was more efficacious than culling rabbits to reduce the proportion of infected individuals of all hosts. Likewise, lowering vector contact with hares highly influenced the reduction of the proportion of infected hosts. The reduction of the vector density per host in the park decreased the leishmaniasis incidence of hosts in the park and the urban areas. On the other hand, the reduction of the vector density per host of the urban area (humans, dogs and cats) decreased only their affected population, albeit at a higher proportion. The use of insecticide-impregnated collar and vaccination in dogs affected only the infected dogs' population. The parameters related to the vector contact with dog, cat or human do not present a high impact on the other hosts infected by Leishmania. In conclusion, the efficacy of each control strategy was determined, in order to direct future actions in this and in other similar outbreaks. The present mathematical model was able to reproduce the leishmaniasis dynamics in the Madrid outbreak, providing theoretical support based on successful experiences, such as the reduction of human cases in Southwest Madrid, Spain. PMID- 29028843 TI - Efficiency of different air filter types for pig facilities at laboratory scale. AB - Air filtration has been shown to be efficient in reducing pathogen burden in circulating air. We determined at laboratory scale the retention efficiency of different air filter types either composed of a prefilter (EU class G4) and a secondary fiberglass filter (EU class F9) or consisting of a filter mat (EU class M6 and F8-9). Four filter prototypes were tested for their capability to remove aerosol containing equine arteritis virus (EAV), porcine reproductive and respiratory syndrome virus (PRRSV), bovine enterovirus 1 (BEV), Actinobacillus pleuropneumoniae (APP), and Staphylococcus (S.) aureus from air. Depending on the filter prototype and utilisation, the airflow was set at 1,800 m3/h (combination of upstream prefilter and fiberglass filter) or 80 m3/h (filter mat). The pathogens were aerosolized and their concentration was determined in front of and behind the filter by culture or quantitative real-time RT-PCR. Furthermore, survival of the pathogens over time in the filter material was determined. Bacteria were most efficiently filtered with a reduction rate of up to 99.9% depending on the filter used. An approximately 98% reduction was achieved for the viruses tested. Viability or infectivity of APP or PRRSV in the filter material decreased below the detection limit after 4 h and 24 h, respectively, whereas S. aureus was still culturable after 4 weeks. Our results demonstrate that pathogens can efficiently be reduced by air filtration. Consequently, air filtration combined with other strict biosecurity measures markedly reduces the risk of introducing airborne transmitted pathogens to animal facilities. In addition, air filtration might be useful in reducing bioaerosols within a pig barn, hence improving respiratory health of pigs. PMID- 29028842 TI - In vitro investigation of head and neck cancer stem cell proportions and their changes following X-ray irradiation as a function of HPV status. AB - INTRODUCTION: Some head and neck squamous cell carcinomas (HNSCC) have a distinct aetiology, which depends on the presence of oncogenic human papilloma virus (HPV). Also, HNSCC contains cancer stem cells (CSCs) that have greater radioresistance and capacity to change replication dynamics in response to irradiation compared to non-clonogenic cells. Since there is limited data on CSCs in HNSCC as a function of HPV status, better understanding of their radiobiology may enable improved treatment outcome. METHODS: Baseline and post-irradiation changes in CSC proportions were investigated by flow cytometry in a HPV-negative (UM-SCC-1) and a HPV-positive (UM-SCC-47) HNSCC cell line, using fluorescent staining with CD44/ALDH markers. CSC proportions in both irradiated and unirradiated cultures were compared for the two cell lines at various times post irradiation. To assess repopulation of CSCs, untreated cultures were depleted of CD44+/ALDH+ cells and re-cultured for 3 weeks before flow cytometry analysis. RESULTS: CSC proportions in untreated cell lines were 0.57% (UM-SCC-1) and 2.87% (UM-SCC-47). Untreated cell lines depleted of CD44+/ALDH+ repopulated this phenotype to a mean of 0.15% (UM-SCC-1) and 6.76% (UM-SCC-47). All UM-SCC-47 generations showed elevated CSC proportions after irradiation, with the most significant increase at 2 days post-irradiation. The highest elevation in UM-SCC 1 CSCs was observed at 1 day post-irradiation in the 2nd generation and at 3 days after irradiation in the 3rd generation. When measured after 10 days, only the 3rd generation of UM-SCC-1 showed elevated CSCs. CONCLUSIONS: CSC proportions in both cell lines were elevated after exposure and varied with time post irradiation. UM-SCC-47 displayed significant plasticity in repopulating the CSC phenotype in depleted cultures, which was not seen in UM-SCC-1. PMID- 29028844 TI - A polyphenol-enriched diet and Ascaris suum infection modulate mucosal immune responses and gut microbiota composition in pigs. AB - Polyphenols are a class of bioactive plant secondary metabolites that are thought to have beneficial effects on gut health, such as modulation of mucosal immune and inflammatory responses and regulation of parasite burdens. Here, we examined the interactions between a polyphenol-rich diet supplement and infection with the enteric nematode Ascaris suum in pigs. Pigs were fed either a basal diet or the same diet supplemented with grape pomace (GP), an industrial by-product rich in polyphenols such as oligomeric proanthocyanidins. Half of the animals in each group were then inoculated with A. suum for 14 days to assess parasite establishment, acquisition of local and systemic immune responses and effects on the gut microbiome. Despite in vitro anthelmintic activity of GP-extracts, numbers of parasite larvae in the intestine were not altered by GP supplementation. However, the bioactive diet significantly increased numbers of eosinophils induced by A. suum infection in the duodenum, jejunum and ileum, and modulated gene expression in the jejunal mucosa of infected pigs. Both GP supplementation and A. suum infection induced significant and apparently similar changes in the composition of the prokaryotic gut microbiota, and both also decreased concentrations of isobutyric and isovaleric acid (branched-chain short chain fatty acids) in the colon. Our results demonstrate that while a polyphenol enriched diet in pigs may not directly influence A. suum establishment, it significantly modulates the subsequent host response to helminth infection. Our results suggest an influence of diet on immune function which may potentially be exploited to enhance immunity to helminths. PMID- 29028846 TI - Periodontal Indices and Status in 34 Growing Patients with Unilateral Cleft Lip and Palate: A Split-Mouth Study. AB - Periodontal examination in growing patients with unilateral cleft lip and palate was performed in a split-mouth study design. Higher plaque acumulation and bleeding indices were recorded for teeth on the cleft side. Pocket probing depth (PPD) and clinical attachment level (CAL) values were higher at lateral incisors and canines adjacent to the cleft. Keratinized gingiva and depth of the vestibule were lower adjacent to the cleft. This study shows that growing patients with clefts present differences regarding periodontal parameters between the cleft and the control side. These alterations affected patients' ability to maintain proper oral hygiene and resulted in differences in PPD and CAL. PMID- 29028847 TI - Is History of Periodontitis a Risk Factor for Peri-implant Disease? A Pilot Study. AB - PURPOSE: The aim of this pilot study was to evaluate clinical outcomes of implant treatment in periodontally compromised patients. MATERIALS AND METHODS: Partially edentulous patients who were diagnosed and treated for chronic periodontitis and later rehabilitated with implant-supported single crowns or fixed partial dentures were enrolled in this study. At the final follow-up, data on probing pocket depth and bleeding on probing were collected, and changes in peri-implant bone levels were assessed on periapical radiographs. Accordingly, patients were categorized into peri-implant disease-free (PID-free), peri-implant mucositis (PIM), or peri-implantitis (PI) groups. Additionally, information on the history of systemic diseases was obtained and correlated with the findings. RESULTS: Seven females and six males with a mean age of 55.2 (standard deviation [SD] +/- 8.38) years were included in this study. Fifty-five implants were placed in 13 partially edentulous patients with a history of chronic periodontitis. The mean follow-up in the study was 35.1 (SD +/- 2.40) months. No implants were lost in the 13 patients, for a cumulative survival of 100%. PI was confirmed in 3 patients and PIM in 8 patients, while 2 patients were found to be PID-free. Diabetes and hypertension were found to be the predominant systemic factors among patients affected by peri-implant diseases. CONCLUSION: Patients with a history of periodontitis are at considerable risk of being affected by peri-implant mucositis, if not by peri-implantitis. PMID- 29028848 TI - The Stability of Augmented Bone Between Two Different Membranes Used for Guided Bone Regeneration Simultaneous with Dental Implant Placement in the Esthetic Zone. AB - PURPOSE: This randomized controlled clinical trial compared the stability of augmented bone between a synthetic resorbable membrane and a collagen resorbable membrane with guided bone regeneration (GBR) simultaneous with dental implant placement in the esthetic zone in terms of facial bone thickness. MATERIALS AND METHODS: A total of 60 dental implants from patients requiring implant placement with simultaneous GBR in the esthetic zone were equally allocated to the test group or control group by block randomization. Biphasic calcium phosphate ceramic bone was used in combination with either a polylactic acid (PLA) membrane (test group, 30 implants) or a resorbable collagen membrane (control group, 30 implants). Cone beam computed tomographic (CBCT) images were used to assess the facial bone thickness postimplantation and then 6 months later at four levels: implant platform and 2 mm, 4 mm, and 6 mm apical to the implant shoulder. RESULTS: All implants were osseointegrated, and no implant loss was found during this study. Facial bone was detected in all cases; however, the thickness of the facial bone was reduced at the 6-month follow-up in both groups. The percentage of facial bone thickness reduction was 34.30%, 27.94%, 24.25%, and 19.81% in the test group and 34.80%, 24.06%, 19.52%, and 20.45% in the control group at the level of the implant platform and at 2 mm, 4 mm, and 6 mm apical to the implant shoulder, respectively. Nevertheless, there was no statistically significant difference between the groups (P > .05). CONCLUSION: A synthetic resorbable membrane revealed an amount of stable augmented bone similar to that of a collagen resorbable membrane. PMID- 29028849 TI - The Effect of Resin Cement Type and Thermomechanical Aging on the Retentive Strength of Custom Zirconia Abutments Bonded to Titanium Inserts. AB - PURPOSE: The purpose of this study was to investigate the effect of resin cement type on the retentive strength of custom zirconia abutments bonded to titanium inserts. MATERIALS AND METHODS: Sixty implant (4.3 mm diameter and 11.5 mm length) and custom zirconia abutment (15 mm height and 2 mm wall thickness) pairs were used to form six groups (n = 10 each). Three different resin cements were used to bond the zirconia abutments and titanium inserts: Panavia F 2.0, Zirconite, and Multilink Hybrid Abutment. Control groups and thermomechanically aged groups were formed. Specimens were subjected to tensile test to failure, and the retention values were analyzed by two-way analysis of variance (ANOVA). RESULTS: Two-way ANOVA showed a significant effect of the cement type and thermomechanical aging (P < .05). Regardless of the cement, control groups showed significantly (P < .05) higher retentive strength than the thermomechanically aged groups. Comparing the resin cements, the retentive strength of Zirconite, aged or not, was higher than that of Panavia F 2.0 and Multilink Hybrid Abutment; no significant differences between the latter two cements were found. In the Zirconite group, adhesive failure occurred mostly between the titanium and the resin cement. In the Panavia F 2.0 and Multilink Hybrid Abutment groups, adhesive failure between the zirconia and the resin cement was observed. CONCLUSION: Resin cement type had an effect on the retentive strength of custom zirconia abutments bonded to titanium inserts. Thermomechanical aging had a negative effect on the retentive strength. Zirconite adhesively bonded to the zirconia surface of the custom abutment. Differences were noted in adhesive failure types among the cements. PMID- 29028845 TI - Analysis of cell cycle parameters during the transition from unhindered growth to ribosomal and translational stress conditions. AB - Abrogation of ribosome synthesis (ribosomal stress) leads to cell cycle arrest. However, the immediate cell response to cessation of ribosome formation and the transition from normal cell proliferation to cell cycle arrest have not been characterized. Furthermore, there are conflicting conclusions about whether cells are arrested in G2/M or G1, and whether the cause is dismantling ribosomal assembly per se, or the ensuing decreased number of translating ribosomes. To address these questions, we have compared the time kinetics of key cell cycle parameters after inhibiting ribosome formation or function in Saccharomyces cerevisiae. Within one-to-two hours of repressing genes for individual ribosomal proteins or Translation Elongation factor 3, configurations of spindles, spindle pole bodies began changing. Actin began depolarizing within 4 hours. Thus the loss of ribosome formation and function is sensed immediately. After several hours no spindles or mitotic actin rings were visible, but membrane ingression was completed in most cells and Ace2 was localized to daughter cell nuclei demonstrating that the G1 stage was reached. Thus cell division was completed without the help of a contractile actin ring. Moreover, cell wall material held mother and daughter cells together resulting in delayed cell separation, suggesting that expression or function of daughter gluconases and chitinases is inhibited. Moreover, cell development changes in very similar ways in response to inhibition of ribosome formation and function, compatible with the notion that decreased translation capacity contributes to arresting the cell cycle after abrogation of ribosome biogenesis. Potential implications for the mechanisms of diseases caused by mutations in ribosomal genes (ribosomopathies) are discussed. PMID- 29028850 TI - Effect of Different Degrees of Mesial Implant Inclination on the Retention and Stability of Two-Implant Mandibular Overdentures Retained with Stud Attachments: An In Vitro Study. AB - PURPOSE: To evaluate the effect of different degrees of mesial implant inclinations on the retention and stability of two-implant mandibular overdentures retained with stud attachments. MATERIALS AND METHODS: Four experimental mandibular acrylic models were constructed. Two laboratory implants were inserted in the canine areas of each model with the following degrees of mesial inclinations: 0, 5, 10, and 20 degrees. Experimental overdentures were connected to the implants with Locator extra-light retention (Le), Locator light retention (Ll), and Locator medium retention (Lm). Vertical (retention) and oblique (stability) dislodging forces (anterior, posterior, and lateral) were measured at the beginning of the study (initial retention) and after 540 cycles of denture insertion and removal (final retention). RESULTS: The final retention was not significantly affected by small (5 degrees) and large (20 degrees) implant inclinations, but decreased with a moderate (10 degrees) inclination. For a small implant inclination (5 degrees), Lm showed the highest final retention/stability and Le showed the lowest, while for moderate and large inclinations (10 and 20 degrees), Le showed the highest final retention/stability and Lm showed the lowest. Vertical dislodging recorded the highest final stability, and lateral dislodgment recorded the lowest stability. CONCLUSION: Within the limitations of this in vitro study, only moderate implant angulation (10 degrees) negatively affects the final retention and stability of Locator retained overdentures. Locator medium retention for small angulation (5 degrees) and Locator extra-light retention for moderate (10 degrees) and large (20 degrees) angulations are recommended to maintain high retention and stability after 540 cycles of denture insertion and removal. PMID- 29028851 TI - Peri-implant Crestal Bone Changes Around Zirconia Implants in Periodontally Healthy and Compromised Patients. AB - PURPOSE: No consensus regarding the efficacy of zirconia implants in maintaining peri-implant hard and soft tissue health has yet been obtained. The aim of this retrospective follow-up study was to gain knowledge about peri-implant bone behavior and about implant survival and success after treatment with zirconia dental implants in patients with normal and compromised soft and hard tissue conditions. MATERIALS AND METHODS: This follow-up study involved 86 patients with 123 zirconia implants (Straumann PURE Ceramic Implant) that were radiographically investigated directly after implant placement (day 0), 3 months after placement, and 1 year after the definitive implant crown placement. The clinical assessment was done at the 1-year postloading appointment and also included the modified Plaque Index, modified Sulcus Bleeding Index, and sulcus pocket depths. Eighteen patients with periodontally compromised conditions were compared to 68 patients with healthy periodontal conditions. RESULTS: The survival rate was 100% and success rate was 94.5%, with no differences between the two groups. The alveolar crest around the ceramic implants showed no significant difference between day 0 and 1 year postloading for both groups (P > .05). There was also no significant difference at 1 year postloading between the groups in the distance from the implant shoulder to the peri-implant bone crest (P = .67) or in pocket depth (P = .07). CONCLUSION: No significant peri-implant bone loss was observed in the first year. The survival and success rates showed no differences between the periodontally healthy and periodontally compromised groups; however, only a limited number of patients with periodontally compromised conditions were included in this study. PMID- 29028852 TI - Biocompatibility and Osseointegration of Titanium Implants with a Silver-Doped Polysiloxane Coating: An In Vivo Pig Model. AB - PURPOSE: To test the antimicrobial properties, surface topography, reaction of surrounding tissue (biocompatibility), and osseointegration of ultrathin implant surfaces containing polysiloxane and nanoscaled silver particles. MATERIALS AND METHODS: Implants with polysiloxane coating and nanoscaled silver particles (Ag/SiOxCy; HyProtect, Bio-Gate) were compared with implants with polysiloxane coating alone and with noncoated (grit-blasted and acid-etched) implants. A total of 72 implants were inserted into the calvaria of eight domestic pigs (nine implants each, three of each type). After 3 months, histologic sections were evaluated for inflammatory cell infiltration and bone implant contact. RESULTS: Roughness parameters did not differ between all three implant types. The Ag/SiOxCy coating exhibited a good antimicrobial effect in vitro and no sign of inflammatory cell infiltration in vivo. The noncoated implants demonstrated 10.85% and 14.48% more bone contact than the polysiloxane-coated implants (P = .003) and the Ag/SiOxCy-coated implants (P <= .001), respectively. Osseointegration was not significantly different between the Ag/SiOxCy-coated and polysiloxane-coated implants (P = .72). CONCLUSION: The osseointegration capability of the Ag/SiOxCy-coated implants was equal to that of the polysiloxane coated implants but less than that of the grit-blasted and acid-etched implants. Because of the biocompatibility of the polysiloxane coating, further studies should be conducted in load-bearing models and in the oral cavity to investigate the antimicrobial effect of the embedded silver clusters. PMID- 29028853 TI - Impact of Sex, Age, and Season on Sinus Membrane Thickness. AB - PURPOSE: Sinus membrane thickness has been associated with the incidence of membrane perforation during the sinus elevation procedure. Understanding the sinus membrane thickness is essential for prevention of this specific surgical complication. Therefore, the aim of this retrospective study was to investigate the impact of sex, age, and season on the membrane thickness. MATERIALS AND METHODS: The charts of 144 healthy patients were included in the study. Cone beam computed tomography (CBCT) images from these patients were analyzed to determine the sinus membrane thickness in the coronal and sagittal views. Sex, age, and season were correlated with the membrane thickness. RESULTS: The mean thickness of the sinus membrane was 1.81 +/- 1.66 mm (range: 0.47 to 9.49 mm). In 22.12% of the CBCT images, the sinus membrane was not visible. Membrane thickness of less than 2 mm was found in 70.8% of the cases. Age was found to be strongly correlated (P < .05) with sinus membrane thickness but not sex or season. CONCLUSION: Based on CBCT assessment, age was found to be a factor influencing sinus membrane thickness but not sex or season. PMID- 29028854 TI - Clinical Insights and Emerging Strategies in Managing Cutaneous T-Cell Lymphoma. AB -

Mycosis Fungoides and Sezary Syndrome, the two most common types of Cutaneous T-Cell Lymphoma (CTCL), present many management challenges for dermatologists. Here, we provide a comprehensive review of up-to-date literature, guidelines, and expert clinical insights. We highlight the updates in the World Health Organization Classification of Cutaneous Lymphomas; we summarize the epidemiology, including a recently observed stabilization of increasing incidence of CTCL in the past decade and increased incidence in males, blacks, and veterans; we also provide the most recent updates on prognostic factors for CTCL. Utilization of Next-Generation Sequencing and other novel technologies has shed light on pathogenic mechanisms of CTCL, including immune dysregulation, antigen stimulation, and genomic alterations. CTCL management still remains a significant challenge due to lack of standardization of therapies for every stage of the disease. We provide a straightforward approach to clinical evaluation, diagnostic workup via immunophenotyping and molecular studies, staging guidelines, and select treatment strategies in Mycosis Fungoides and Sezary Syndrome. CTCL patients require individualized, holistic, and multidisciplinary care, for whom addressing management in different skin types and prioritizing quality of life issues are essential.

J Drugs Dermatol. 2017;16(5):405-412.

. PMID- 29028855 TI - Benjamin Button Effect: Recognizable Rejuvenation. AB -

The "Benjamin Button" effect inspired by the popular motion picture, is used to describe the goal of achieving a clearly younger and more attractive, yet still natural appearance utilizing noninvasive and minimally invasive therapies and procedures. Due to high patient demand for enhancement and rejuvenation of the face and body with minimal downtime, there is an ever-increasing number of companies developing products and devices, variety of indications, and field of practitioners offering them. Each option, including topicals, injectables, and devices, promises near magical results. Despite that, a brief review of online discussions and media resources reveals both patients complaining of inadequate results and celebrities with extreme appearances. For clinical practitioners, it is critical to understand the art, science, and economics of noninvasive rejuvenation in order to properly evaluate potential patients, set appropriate expectations, develop, and provide an effective noninvasive rejuvenation plan to achieve a true "Benjamin Button" effect for patients.

J Drugs Dermatol. 2017;16(6 Suppl):s74-76.

. PMID- 29028856 TI - Ethnicity and Aging Skin. AB -

Aging is a complex process influenced by both extrinsic and intrinsic factors. Premature signs of aging due to cumulative UV exposure represent a major concern of the cosmetic patient. Skin of color is less susceptible to photodamage and thus signs of aging are less pronounced and occur later than in Caucasians. Understanding structural and functional differences among different racial/ethnic groups is important to achieve favorable treatment outcomes when addressing aging concerns.

. PMID- 29028858 TI - Approach to the Mature Cosmetic Patient: Aging Gracefully. AB -

Aging gracefully has taken on a whole new meaning over the past few decades as new aesthetic treatments have been developed and are becoming more sophisticated by the day. The aging process, which is exacerbated by chronic UV exposure, results in dyspigmentation, loss of skin laxity, precancerous and cancerous skin lesions, fat loss and redistribution, and bone resorption. Laser and light devices can be used to treat dyspigmentation, while neuromodulators and soft tissue fillers can be used for rhytides and revolumization. Newer procedures include using resorbable polyglycolide/L-lactide suspension sutures with bidirectional cones for mid face revolumization, deoxycholic acid injections for submental fat reduction, and radiofrequency energy. Certain over-the-counter products can increase the risk of postprocedure bruising, while arnica and bromelain may help decrease this risk. Dermatologists continue to be at the forefront of aesthetic treatments, ready and willing to help the aging population look and feel their best.

J Drugs Dermatol. 2017;16(6 Suppl):s84 86.

. PMID- 29028857 TI - Treating the Young Aesthetic Patient: Evidence-Based Recommendations. AB -

BACKGROUND: There is growing demand for cosmetic treatments in the younger population, yet counseling and treating this age group can be difficult to justify.

OBJECTIVE: Chronologic changes that cause noticeable signs of aging are discussed within each age group. Age-appropriate cosmetic preventions and interventions are therefore recommended.

METHODS: A PubMed search was performed for high quality trials and evidence based reviews on the basic science of aging, as well as on cosmetic modalities and their histological, biochemical, and clinical effects.

RESULTS AND CONCLUSIONS: Specific age-related changes occur with each decade of life. A complete understanding of when these physiologic changes occur helps determine age-appropriate cosmetic counseling, preventions, and interventions.

J Drugs Dermatol. 2017;16(6 Suppl):s81 83.

. PMID- 29028859 TI - Neurotoxins: Evidence for Prevention. AB -

Onabotulinum Toxin A is the gold standard treatment for temporary dynamic rhytid reduction. Clinicians have observed a long-term and preventive benefit for patients beyond muscle relaxation particularly in patients who receive repeated treatments over time. These changes include progressive reduction of rhytides, prevention of dynamic rhytides, and improvements in skin quality. In this brief paper, we review basic science, clinical, and anecdotal evidence that explores a long-term and potential preventive effect of Onabotulinum Toxin A injections.

J Drugs Dermatol. 2017;16(6 Suppl):s87-90.

. PMID- 29028860 TI - "Man-some": A Review of Male Facial Aging and Beauty. AB -

Gender plays a significant role in determining facial anatomy and behavior, both of which are key factors in the aging process. Understanding the pattern of male facial aging is critical when planning aesthetic treatments on men. Men develop more severe rhytides in a unique pattern, show increased periocular aging changes, and are more prone to hair loss. What also needs to be considered when planning a treatment is what makes men beautiful or "man-some". Male beauty strikes a balance between masculine and feminine facial features. A hypermasculine face can have negative associations. Men also exhibit different cosmetic concerns. Men tend to focus on three areas of the face - hairline, periocular area, and jawline. A comprehensive understanding of the male patient including anatomy, facial aging, cosmetic concerns, and beauty are needed for successful cosmetic outcomes.

J Drugs Dermatol. 2017;16(6 Suppl):s91 93.

. PMID- 29028861 TI - The Rationale of Anti-Aging Cosmetic Ingredients. AB -

Anti-aging cosmetics are a mainstay in the skin care regimen irrespective of gender or human ethnics. Skin aging involves functional slowdown combined with environmental induced alterations. This paper focuses on cosmetic ingredients that aim at alleviating the signs of skin aging, with proven/controlled results of efficacy. Anti-aging skin care widely benefits from new ingredients and modern evaluation methods that can substantiate the effects of innovative products in a perceivable and sensitive manner. Our approach in controlling skin aging consists of following steps: 1) Developing novel testing methods; 2) Preventing photo aging by sunscreens that protect from UV damage; 3) Protecting and restoring skin from damage induced by environmental exposure through active ingredients; 4) Boosting the cell metabolism and cell renewal to restore skin mechanical properties and improved appearance.

J Drugs Dermatol. 2017;16(6 Suppl):s94-97.

. PMID- 29028862 TI - Alternatives to Standard Injectables and Devices for Rejuvenation. AB - :

INTRODUCTION: Looking at alternatives to standard injectables and devices for rejuvenation, typical indications for facial rejuvenation are poor skin quality, pigmentary changes, and the loss of shape. Looking for effective treatments for those indications in the aesthetic field, one can notice a kind of "retro"-trend: easy-to-perform, non- or minimally-invasive, low-investment requiring procedures are regaining a lot of popularity. And, over time, those treatments are becoming well defined and far more specific.

OBJECTIVE: To discuss an indication-specific full-face concept for facial rejuvenation using alternatives to standard injectables and devices for rejuvenation. MATERIALS AND METHODS: The strategy of this indication-specific full-face concept is based on a three-pillar-principle: regeneration, regulation, and reshaping. In parallel to this concept, major indications such as poor skin quality, pigmentary changes, and loss of shape and definition are discussed. To address those indications, therapeutic principles such as topicals (cosmeceuticals, magistral formulations), mesotherapy, needling, chemical peelings, injection lipolysis, and thread lifting will be demonstrated.

CONCLUSION: As an alternative to standard injectables and devices, an indication-specific approach for a concept of full face rejuvenation is based on the three-pillar-principle of regeneration, regulation, and reshaping by easy-to-perform, non- or minimally-invasive procedures for rejuvenation.

J Drugs Dermatol. 2017;16(6 Suppl):s98 103.

. PMID- 29028863 TI - The Future of Non-Invasive Rejuvenation Technology: Devices. AB -

Non-invasive rejuvenation of the skin is performed regularly in many cosmetic offices. Using evidence-based medicine, we will review the various technologies being used for non-invasive rejuvenation. This includes the use of intense pulsed light (IPL), which has been thoroughly studied and shown to be quite useful for this type of rejuvenation in removing the red and brown pigments, as well as affecting collagen. Fractional lasers, both non-ablative and ablative in nature, also can show dramatic improvements in the skin and associated clinical studies are reviewed here. Also described are radiofrequency (RF) fractional pin devices and RF microneedles used for non-invasive rejuvenation. Picosecond lasers are showing very positive results in the non-invasive rejuvenation market. Finally, absorbable sutures are being used to lift the skin and add volume in the skin over a duration of time. They are quickly becoming more popular.

J Drugs Dermatol. 2017;16(6 Suppl):s104-107.

. PMID- 29028864 TI - Predicting Cognitive Functioning, Activities of Daily Living, and Participation 6 Months after Mild to Moderate Stroke. AB - Objective: Predicting neurocognitive and functional outcomes in stroke is an important clinical task, especially in rehabilitation settings. We assessed acute predictors of cognitive and functional outcomes 6 months after mild to moderate stroke. Methods: We conducted a retrospective analysis of acute clinical data and 6-month follow-up telephone interviews for 498 mild to moderate stroke patients. Predictors were sociodemographic variables, the National Institute of Health Stroke Scale (NIHSS), basic physical measures, the Mesulam Cancellation Test, the Short Blessed Test (SBT), Trails A/B, and the Boston Naming Test. The outcome variables were the Communication, Memory and Thinking, ADL/IADLs, and Participation subscales from the Stroke Impact Scale. We conducted four hierarchical multiple regression analyses with demographic variables and the NIHSS score entered into the first step, followed by physical variables in the second step, and neuropsychological variables in the final step. Results: Physical variables explained more variance in ADL/IADLs and Participation outcomes than in Communication and Memory and Thinking outcomes, while cognitive predictors exhibited the opposite trend. The SBT was the only significant independent predictor of Communication and Memory and Thinking (p's < .001), while the NIHSS was the only measure that significantly predicted ADL/IADLs (p < .001) and Participation (p = .002). Poorer performance on screening measures predicted worse cognitive and functional outcomes 6 months post-stroke. Conclusions: These results support the clinical utility of administering brief screening instruments during acute recovery from mild to moderate stroke. Neuropsychologists should prioritize performance on screening measures assessing acute neurologic status and cognitive dysfunction when making recommendations for post-stroke rehabilitation. PMID- 29028865 TI - Clinical Ethics in the Context of Deep Brain Stimulation for Movement Disorders. AB - Objective: Discuss common clinical ethical challenges encountered in working with patients who are candidates for deep brain stimulation (DBS) for the treatment of motor symptoms of Parkinson's disease (PD). Method: The relevant literature is reviewed and supplemented by descriptive, ethically challenging cases stemming from decades of combined experience working on DBS teams. We outline ethical arguments and provide pragmatic recommendations to assist neuropsychologists working in movement disorder teams. Results: The goals of the pre-operative neuropsychological DBS assessment include: (1) identification of potential cognitive risk factors; (2) identification of relevant neuropsychiatric or neurobehavioral factors; (3) assessment of level of family support; and (4) systematic assessment of patient's and family member's goals or expectations for DBS. The information gleaned from the pre-operative neuropsychological assessment is highly relevant to the most commonly studied clinical ethics challenges encountered in DBS: (1) assessment of risk/benefit; (2) determinations regarding inclusion/exclusion; (3) autonomy; and (4) patient's perception of benefit and quality of life. Conclusions: Neuropsychologists are particularly well poised to provide unique and important insights to assist with developing the most ethically sound practices that take into account patient's values as well as fiduciary responsibilities to the patient, the team, the profession, and the broader community. PMID- 29028867 TI - How Flexible is the Use of Egocentric Versus Allocentric Frame of Reference in the Williams Syndrome Population? AB - Objective: This study examined the spontaneous use of allocentric and egocentric frames of reference and their flexible use as a function of instructions. Method: The computerized spatial reference task created by Heiz and Barisnikov (2015) was used. Participants had to choose a frame of reference according to three types of instructions: spontaneous, allocentric and egocentric. The performances of 16 Williams Syndrome participants between 10 and 41 years were compared to those of two control groups (chronological age and non-verbal intellectual ability). Results: The majority of Williams Syndrome participants did not show a preference for a particular frame of reference. When explicitly inviting participants to use an allocentric frame of reference, all three groups showed an increased use of the allocentric frame of reference. At the same time, an important heterogeneity of type of frame of reference used by Williams Syndrome participants was observed. Conclusion: Results demonstrate that despite difficulties in the spontaneous use of allocentric and egocentric frames of reference, some Williams Syndrome participants show flexibility in the use of an allocentric frame of reference when an explicit instruction is provided. PMID- 29028866 TI - Global and targeted approaches to single-cell transcriptome characterization. AB - Analysing transcriptomes of cell populations is a standard molecular biology approach to understand how cells function. Recent methodological development has allowed performing similar experiments on single cells. This has opened up the possibility to examine samples with limited cell number, such as cells of the early embryo, and to obtain an understanding of heterogeneity within populations such as blood cell types or neurons. There are two major approaches for single cell transcriptome analysis: quantitative reverse transcription PCR (RT-qPCR) on a limited number of genes of interest, or more global approaches targeting entire transcriptomes using RNA sequencing. RT-qPCR is sensitive, fast and arguably more straightforward, while whole-transcriptome approaches offer an unbiased perspective on a cell's expression status. PMID- 29028868 TI - Symplasmic and apoplasmic transport inside feather moss stems of Pleurozium schreberi and Hylocomium splendens. AB - Background and Aims: The ubiquitous feather mosses Pleurozium schreberi and Hylocomium splendens form a thick, continuous boundary layer between the soil and the atmosphere, and play important roles in hydrology and nutrient cycling in tundra and boreal ecosystems. The water fluxes among these mosses and environmental factors controlling them are poorly understood. The aim of this study was to investigate whether feather mosses are capable of internal transport and to provide a better understanding of species-specific morphological traits underlying this function. The impacts of environmental conditions on their internal transport rates were also investigated. Methods: Cells involved in water and food conduction in P. schreberi and H. splendens were identified by transmission electron microscopy. Symplasmic and apoplasmic fluorescent tracers were applied to the moss stems to determine the routes of internal short- and long-distance transport and the impact of air humidity on the transport rates. Key Results: Symplasmic transport over short distances occurs via food-conducting cells in both mosses. Pleurozium schreberi is also capable of apoplasmic internal long-distance transport via a central strand of hydroids. These are absent in H. splendens. Reduced air humidity significantly increased the internal transport of both species, and the increase was significantly faster for P. schreberi than for H. splendens. Conclusions: Pleurozium schreberi and Hylocomium splendens are capable of internal transport but the pathway and conductivity differ due to differences in stem anatomy. These results help explain their varying desiccation tolerance and possibly their differing physiology and autecology and, ultimately, their impact on ecosystem functioning. PMID- 29028869 TI - MG-RAST version 4-lessons learned from a decade of low-budget ultra-high throughput metagenome analysis. AB - As technologies change, MG-RAST is adapting. Newly available software is being included to improve accuracy and performance. As a computational service constantly running large volume scientific workflows, MG-RAST is the right location to perform benchmarking and implement algorithmic or platform improvements, in many cases involving trade-offs between specificity, sensitivity and run-time cost. The work in [Glass EM, Dribinsky Y, Yilmaz P, et al. ISME J 2014;8:1-3] is an example; we use existing well-studied data sets as gold standards representing different environments and different technologies to evaluate any changes to the pipeline. Currently, we use well-understood data sets in MG-RAST as platform for benchmarking. The use of artificial data sets for pipeline performance optimization has not added value, as these data sets are not presenting the same challenges as real-world data sets. In addition, the MG-RAST team welcomes suggestions for improvements of the workflow. We are currently working on versions 4.02 and 4.1, both of which contain significant input from the community and our partners that will enable double barcoding, stronger inferences supported by longer-read technologies, and will increase throughput while maintaining sensitivity by using Diamond and SortMeRNA. On the technical platform side, the MG-RAST team intends to support the Common Workflow Language as a standard to specify bioinformatics workflows, both to facilitate development and efficient high-performance implementation of the community's data analysis tasks. PMID- 29028870 TI - An assessment on the uncertainty of the nitrogen to phosphorus ratio as a threshold for nutrient limitation in plants. AB - Background and Aims: The nitrogen (N) to phosphorus (P) ratio (N:P) has been widely used as a threshold for identifying nutrient limitations in terrestrial plants; however, the associated reliability has not been well assessed. Methods: The uncertainty of nutrient limitations caused by the N:P threshold was evaluated using two approaches: fertilization experiments synthesized across multiple ecosystems; and random sampling simulation of the impacts of different nutrient sufficiencies and deficiencies. Key Results: The fertilization experiment data indicated that the types of nutrient limitation determined via N:P thresholds were partly inconsistent with the growth responses observed under N and P additions, i.e. under N:P thresholds of 14 and 16 (or 10 and 20), 32.5 % (or 16.2 %) of the data were inconsistent between these two. The random sampling simulation suggested that N:P thresholds may indicate N (or P) limitations when leaf N (or P) content is sufficient, whereas these thresholds may not indicate N (or P) limitations when leaf N (or P) content is deficient. The error risks calculated from the sampling simulation presented large fluctuations at small sample sizes and decreased as the thresholds of nutrient content sufficiency (or deficiency) increased (or decreased). The N:P thresholds of 10 and 20 showed lower error risks than the thresholds of 14 and 16. Conclusions: These findings highlight that canonical N:P thresholds have the potential to introduce a large uncertainty when used to detect plant nutrient limitations, suggesting that the error risks should be cautioned in future studies. PMID- 29028872 TI - A review of methods and databases for metagenomic classification and assembly. AB - Microbiome research has grown rapidly over the past decade, with a proliferation of new methods that seek to make sense of large, complex data sets. Here, we survey two of the primary types of methods for analyzing microbiome data: read classification and metagenomic assembly, and we review some of the challenges facing these methods. All of the methods rely on public genome databases, and we also discuss the content of these databases and how their quality has a direct impact on our ability to interpret a microbiome sample. PMID- 29028871 TI - High light aggravates functional limitations of cucumber canopy photosynthesis under salinity. AB - Background and Aims: Most crop species are glycophytes, and salinity stress is one of the most severe abiotic stresses reducing crop yields worldwide. Salinity affects plant architecture and physiological functions by different mechanisms, which vary largely between crop species and determine the susceptibility or tolerance of a crop species to salinity. Methods: Experimental data from greenhouse cucumber (Cucumis sativus), a salt-sensitive species, grown under three salinity levels were interpreted by combining a functional-structural plant model and quantitative limitation analysis of photosynthesis. This approach allowed the quantitative dissection of canopy photosynthetic limitations into architectural and functional limitations. Functional limitations were further dissected into stomatal (Ls), mesophyll (Lm) and biochemical (Lb). Key Results: Architectural limitations increased rapidly after the start of the salinity treatment and became stronger than the sum of functional limitations (Ls + Lm + Lb) under high salinity. Stomatal limitations resulted from ionic effects and were much stronger than biochemical limitations, indicating that canopy photosynthesis was more limited by the effects of leaf sodium on stomatal regulation than on photosynthetic enzymes. Sensitivity analyses suggested that the relative importance of salinity effects on architectural and functional limitations depends on light conditions, with high light aggravating functional limitations through salinity effects on stomatal limitations. Conclusions: Salinity tolerance of cucumber is more likely to be improved by traits related to leaf growth and stomatal regulation than by traits related to tissue tolerance to ion toxicity, especially under high light conditions. PMID- 29028873 TI - miRNA in tumour metabolism and why could it be the preferred pathway for energy reprograming. AB - The current literature on the role of microRNA (miRNA) in tumour metabolism is growing, and a number of studies regularly confirm the impact miRNA can have in energy reprograming in tumours. However, there remains to be a lack of understanding of the larger perspective of the role of miRNA in the metabolism story. In the first part of this review, we provide a comprehensive and up-to date description of the extensive role of miRNAs in tumour metabolism including glucose, lipid and amino acid metabolism. However, in the second part, we aim to provide a description of the multidimensional role miRNA can be playing in tumour metabolism. Of paramount importance is the role miRNA has in responding to metabolic cues and how it can alter cellular state and fate, including cancer stem cells, in response to such cues. In addition, exosomal miRNAs can provide means by which cells can communicate metabolic signals and messages with other cells within the tumour microenvironment, altering therefore the phenotype and functional capacity of these cells. With this expanding area of research better understanding of the role of miRNA in tumour metabolism in a mechanistic approach, and not only describing which miRNAs can effect which genes, can help to exploit the therapeutic implications behind the extensive role of miRNA in tumour metabolism. PMID- 29028874 TI - Impaired Self-Awareness of Motor Disturbances in Parkinson's Disease. AB - Traditionally, anosognosia for cognitive or motor impairments in patients with Parkinson's disease (PD) was viewed as unlikely unless the patient was demented. More recent research has suggested that a portion of non-demented PD patients (30%-50%) in fact have impaired subjective awareness (ISA) of their motor impairments (ISAm). This empirical finding has implications for the clinical neuropsychological examination of PD patients and raises theoretical questions relevant to the broader study of anosognosia seen in other patient groups. The purpose of this paper is to primarily review our own research in this area and to summarize research findings of other investigators who have examined ISA in PD patients. Our secondary goal is to demonstrate the relevance of assessing ISA when conducting a neuropsychological examination of PD patients. Our findings suggest ISAm in PD patients is related to motor signs of right hemispheric dysfunction, but the brain imaging correlates of ISA for hypokinesias appear different than those obtained for ISA for dyskinesia in this patient group. PMID- 29028875 TI - Systematic bias of correlation coefficient may explain negative accuracy of genomic prediction. PMID- 29028876 TI - Systematic comparative study of computational methods for T-cell receptor sequencing data analysis. AB - High-throughput sequencing technologies have exposed the possibilities for the in depth evaluation of T-cell receptor (TCR) repertoires. These studies are highly relevant to gain insights into human adaptive immunity and to decipher the composition and diversity of antigen receptors in physiological and disease conditions. The major objective of TCR sequencing data analysis is the identification of V, D and J gene segments, complementarity-determining region 3 (CDR3) sequence extraction and clonality analysis. With the advancement in sequencing technologies, new TCR analysis approaches and programs have been developed. However, there is still a deficit of systematic comparative studies to assist in the selection of an optimal analysis approach. Here, we present a detailed comparison of 10 state-of-the-art TCR analysis tools on samples with different complexities by taking into account many aspects such as clonotype detection [unique V(D)J combination], CDR3 identification or accuracy in error correction. We used our in silico and experimental data sets with known clonalities enabling the identification of potential tool biases. We also established a new strategy, named clonal plane, which allows quantifying and comparing the clonality of multiple samples. Our results provide new insights into the effect of method selection on analysis results, and it will assist users in the selection of an appropriate analysis method. PMID- 29028877 TI - RINspector: a Cytoscape app for centrality analyses and DynaMine flexibility prediction. AB - Motivation: Protein function is directly related to amino acid residue composition and the dynamics of these residues. Centrality analyses based on residue interaction networks permit to identify key residues in a protein that are important for its fold or function. Such central residues and their environment constitute suitable targets for mutagenesis experiments. Predicted flexibility and changes in flexibility upon mutation provide valuable additional information for the design of such experiments. Results: We combined centrality analyses with DynaMine flexibility predictions in a Cytoscape app called RINspector. The app performs centrality analyses and directly visualizes the results on a graph of predicted residue flexibility. In addition, the effect of mutations on local flexibility can be calculated. Availability: The app is publicly available in the Cytoscape app store. Contact: guillaume.brysbaert@univ lille1.fr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028878 TI - Web-based drug repurposing tools: a survey. AB - Drug repurposing (a.k.a. drug repositioning) is the search for new indications or molecular targets distinct from a drug's putative activity, pharmacological effect or binding specificities. With the ever-increasing rates of termination of drugs in clinical trials, drug repositioning has risen as one of the effective solutions against the risk of drug failures. Repositioning finds a way to reverse the grim but real trend that Eroom's law portends for the pharmaceutical and biotech industry, and drug discovery in general. Further, the advent of high throughput technologies to explore biological systems has enabled the generation of zeta bytes of data and a massive collection of databases that store them. Computational analytics and mining are frequently used as effective tools to explore this byzantine series of biological and biomedical data. However, advanced computational tools are often difficult to understand or use, thereby limiting their accessibility to scientists without a strong computational background. Hence it is of great importance to build user-friendly interfaces to extend the user-base beyond computational scientists, to include life scientists who may have deeper chemical and biological insights. This survey is focused on systematically presenting the available Web-based tools that aid in repositioning drugs. PMID- 29028879 TI - Review of computational methods for virus-host protein interaction prediction: a case study on novel Ebola-human interactions. AB - Identification of potential virus-host interactions is useful and vital to control the highly infectious virus-caused diseases. This may contribute toward development of new drugs to treat the viral infections. Recently, database records of clinically and experimentally validated interactions between a small set of human proteins and Ebola virus (EBOV) have been published. Using the information of the known human interaction partners of EBOV, our main objective is to identify a set of proteins that may interact with EBOV proteins. Here, we first review the state-of-the-art, computational methods used for prediction of novel virus-host interactions for infectious diseases followed by a case study on EBOV-human interactions. The assessment result shows that the predicted human host proteins are highly similar with known human interaction partners of EBOV in the context of structure and semantics and are responsible for similar biochemical activities, pathways and host-pathogen relationships. PMID- 29028881 TI - SNP genotyping and parameter estimation in polyploids using low-coverage sequencing data. AB - Motivation: Genotyping and parameter estimation using high throughput sequencing data are everyday tasks for population geneticists, but methods developed for diploids are typically not applicable to polyploid taxa. This is due to their duplicated chromosomes, as well as the complex patterns of allelic exchange that often accompany whole genome duplication (WGD) events. For WGDs within a single lineage (autopolyploids), inbreeding can result from mixed mating and/or double reduction. For WGDs that involve hybridization (allopolyploids), alleles are typically inherited through independently segregating subgenomes. Results: We present two new models for estimating genotypes and population genetic parameters from genotype likelihoods for auto- and allopolyploids. We then use simulations to compare these models to existing approaches at varying depths of sequencing coverage and ploidy levels. These simulations show that our models typically have lower levels of estimation error for genotype and parameter estimates, especially when sequencing coverage is low. Finally, we also apply these models to two empirical datasets from the literature. Overall, we show that the use of genotype likelihoods to model non-standard inheritance patterns is a promising approach for conducting population genomic inferences in polyploids. Availability and implementation: A C ++ program, EBG, is provided to perform inference using the models we describe. It is available under the GNU GPLv3 on GitHub: https://github.com/pblischak/polyploid-genotyping. Contact: blischak.4@osu.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028880 TI - Semantic Memory in HIV-associated Neurocognitive Disorders: An Evaluation of the "Cortical" Versus "Subcortical" Hypothesis. AB - Objective: HIV-associated neurocognitive disorders (HAND) have historically been characterized as a subcortical condition that does not affect semantic memory; however, recent evidence suggests that the cortical regions that support semantic memory may be affected in HIV. Method: The current study examined the effects of HAND on semantic memory in 85 HIV+ individuals with HAND, 193 HIV+ individuals without HAND, and 181 HIV- individuals who completed the Boston Naming Test (BNT) and the Famous Faces subtest of the Kauffman Adolescent and Adult Intelligence Test (KAIT-FF). Results: Linear regressions revealed a significant adverse effect of HAND on total scores on the BNT and the KAIT-FF (all ps < .01). Analyses of BNT errors showed that individuals with HAND committed more semantically related errors as compared to the other two study groups (all ps < .05). However, there were no group differences in rates of visually based errors, which are more commonly observed in traditional subcortical diseases (all ps > .10). Conclusions: Results indicate that HAND may impose adverse effects on individuals' object naming and identification abilities suggestive of mild semantic deficits that parallel traditional cortical diseases such as Alzheimer's disease. PMID- 29028882 TI - Enzymatic methods for genome-wide profiling of protein binding sites. AB - Genome-wide mapping of protein-DNA interactions is a staple approach in many areas of modern molecular biology. Genome-wide profiles of protein-binding sites are most commonly generated by chromatin immunoprecipitation and high-throughput sequencing (ChIP-seq). Although ChIP-seq has played a central role in studying genome-wide protein binding, recent work has highlighted systematic biases in the technique that warrant technical and interpretive caution and underscore the need for orthogonal techniques to both confirm the results of ChIP-seq studies and uncover new insights not accessible to ChIP. Several such techniques, based on genetic or immunological targeting of enzymatic activity to specific genomic loci, have been developed. Here, we review the development, applications and future prospects of these methods as complements to ChIP-based approaches and as powerful techniques in their own right. PMID- 29028883 TI - A new pan-European Train-the-Trainer programme for bioinformatics: pilot results on feasibility, utility and sustainability of learning. AB - Demand for training life scientists in bioinformatics methods, tools and resources and computational approaches is urgent and growing. To meet this demand, new trainers must be prepared with effective teaching practices for delivering short hands-on training sessions-a specific type of education that is not typically part of professional preparation of life scientists in many countries. A new Train-the-Trainer (TtT) programme was created by adapting existing models, using input from experienced trainers and experts in bioinformatics, and from educational and cognitive sciences. This programme was piloted across Europe from May 2016 to January 2017. Preparation included drafting the training materials, organizing sessions to pilot them and studying this paradigm for its potential to support the development and delivery of future bioinformatics training by participants. Seven pilot TtT sessions were carried out, and this manuscript describes the results of the pilot year. Lessons learned include (i) support is required for logistics, so that new instructors can focus on their teaching; (ii) institutions must provide incentives to include training opportunities for those who want/need to become new or better instructors; (iii) formal evaluation of the TtT materials is now a priority; (iv) a strategy is needed to recruit, train and certify new instructor trainers (faculty); and (v) future evaluations must assess utility. Additionally, defining a flexible but rigorous and reliable process of TtT 'certification' may incentivize participants and will be considered in future. PMID- 29028885 TI - HoTResDB: Host Transcriptional Response Database for Viral Hemorrhagic Fevers. AB - Summary: High-throughput screening of the host transcriptional response to various viral infections provides a wealth of data but utilization of microarray and next generation sequencing (NGS) data for analysis can be difficult. The Host Transcriptional Response DataBase (HoTResDB), allows visitors to access already processed microarray and NGS data from non-human primate models of viral hemorrhagic fever to better understand the host transcriptional response. Availability: HoTResDB is freely available at http://hotresdb.bu.edu. Contact: jhconnor@bu.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028886 TI - Analysis of protein targets in pathogen-host interaction in infectious diseases: a case study on Plasmodium falciparum and Homo sapiens interaction network. AB - Infection and disease progression is the outcome of protein interactions between pathogen and host. Pathogen, the role player of Infection, is becoming a severe threat to life as because of its adaptability toward drugs and evolutionary dynamism in nature. Identifying protein targets by analyzing protein interactions between host and pathogen is the key point. Proteins with higher degree and possessing some topologically significant graph theoretical measures are found to be drug targets. On the other hand, exceptional nodes may be involved in infection mechanism because of some pathway process and biologically unknown factors. In this article, we attempt to investigate characteristics of host pathogen protein interactions by presenting a comprehensive review of computational approaches applied on different infectious diseases. As an illustration, we have analyzed a case study on infectious disease malaria, with its causative agent Plasmodium falciparum acting as 'Bait' and host, Homo sapiens/human acting as 'Prey'. In this pathogen-host interaction network based on some interconnectivity and centrality properties, proteins are viewed as central, peripheral, hub and non-hub nodes and their significance on infection process. Besides, it is observed that because of sparseness of the pathogen and host interaction network, there may be some topologically unimportant but biologically significant proteins, which can also act as Bait/Prey. So, functional similarity or gene ontology mapping can help us in this case to identify these proteins. PMID- 29028884 TI - Protein-protein interaction specificity is captured by contact preferences and interface composition. AB - Motivation: Large-scale computational docking will be increasingly used in future years to discriminate protein-protein interactions at the residue resolution. Complete cross-docking experiments make in silico reconstruction of protein protein interaction networks a feasible goal. They ask for efficient and accurate screening of the millions structural conformations issued by the calculations. Results: We propose CIPS (Combined Interface Propensity for decoy Scoring), a new pair potential combining interface composition with residue-residue contact preference. CIPS outperforms several other methods on screening docking solutions obtained either with all-atom or with coarse-grain rigid docking. Further testing on 28 CAPRI targets corroborates CIPS predictive power over existing methods. By combining CIPS with atomic potentials, discrimination of correct conformations in all-atom structures reaches optimal accuracy. The drastic reduction of candidate solutions produced by thousands of proteins docked against each other makes large scale docking accessible to analysis. Availability and implementation: CIPS source code is freely available at http://www.lcqb.upmc.fr/CIPS. Contact: alessandra.carbone@lip6.fr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028887 TI - Identification of cancer driver genes in focal genomic aberrations from whole exome sequencing data. AB - Summary: Whole-exome sequencing (WES) data have been used for identifying copy number aberrations in cancer cells. Nonetheless, the use of WES is still challenging for identification of focal aberrant regions in multiple samples that may contain cancer driver genes. In this study, we developed a wavelet-based method for identifying focal genomic aberrant regions in the WES data from cancer cells (WIFA-X). When we applied WIFA-X to glioblastoma multiforme and lung adenocarcinoma datasets, WIFA-X outperformed other approaches on identifying cancer driver genes. Availability and implementation: R source code is available at http://gcancer.org/wifax. Contact: hyunjulee@gist.ac.kr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028888 TI - RRDB: a comprehensive and non-redundant benchmark for RNA-RNA docking and scoring. AB - Motivation: With the discovery of more and more noncoding RNAs and their versatile functions, RNA-RNA interactions have received increased attention. Therefore, determination of their complex structures is valuable to understand the molecular mechanism of the interactions. Given the high cost of experimental methods, computational approaches like molecular docking have played an important role in the determination of complex structures, in which a benchmark is critical for the development of docking algorithms. Results: Meeting the need, we have developed the first comprehensive and nonredundant RNA-RNA docking benchmark (RRDB). The diverse dataset of 123 targets consists of 78 unbound-unbound and 45 bound-unbound (or unbound-bound) test cases. The dataset was classified into three groups according to the interface conformational changes between bound and unbound structures: 47 'easy', 38 'medium' and 38 'difficult' targets. A docking test with the benchmark using ZDOCK 2.1 demonstrated the challenging nature of the RNA-RNA docking problem and the important value of the present benchmark. The bound and unbound cases of the benchmark will be beneficial for the development and optimization of docking and scoring algorithms for RNA-RNA interactions. Availability and implementation: The benchmark is available at http://huanglab.phys.hust.edu.cn/RRDbenchmark/. Contact: huangsy@hust.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028889 TI - Segway 2.0: Gaussian mixture models and minibatch training. AB - Summary: Segway performs semi-automated genome annotation, discovering joint patterns across multiple genomic signal datasets. We discuss a major new version of Segway and highlight its ability to model data with substantially greater accuracy. Major enhancements in Segway 2.0 include the ability to model data with a mixture of Gaussians, enabling capture of arbitrarily complex signal distributions, and minibatch training, leading to better learned parameters. Availability and implementation: Segway and its source code are freely available for download at http://segway.hoffmanlab.org. We have made available scripts (https://doi.org/10.5281/zenodo.802939) and datasets (https://doi.org/10.5281/zenodo.802906) for this paper's analysis. Contact: michael.hoffman@utoronto.ca. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028890 TI - MALDIrppa: quality control and robust analysis for mass spectrometry data. AB - Summary: This R package helps to implement a robust approach to deal with mass spectrometry (MS) data. It is aimed at alleviating reproducibility issues and pernicious effects of deviating signals on both data pre-processing and downstream data analysis. Based on robust statistical methods, it facilitates the identification and filtering of low-quality mass spectra and atypical peak profiles as well as monitoring and data handling through pre-processing, which extends existing computational tools for high-throughput data. Availability and implementation: MALDIrppa is implemented as a package for the R environment for data analysis and it is freely available to download from the CRAN repository at https://CRAN.R-project.org/package=MALDIrppa. Contact: javier.palarea@bioss.ac.uk. PMID- 29028891 TI - On the mechanisms of protein interactions: predicting their affinity from unbound tertiary structures. AB - Motivation: The characterization of the protein-protein association mechanisms is crucial to understanding how biological processes occur. It has been previously shown that the early formation of non-specific encounters enhances the realization of the stereospecific (i.e. native) complex by reducing the dimensionality of the search process. The association rate for the formation of such complex plays a crucial role in the cell biology and depends on how the partners diffuse to be close to each other. Predicting the binding free energy of proteins provides new opportunities to modulate and control protein-protein interactions. However, existing methods require the 3D structure of the complex to predict its affinity, severely limiting their application to interactions with known structures. Results: We present a new approach that relies on the unbound protein structures and protein docking to predict protein-protein binding affinities. Through the study of the docking space (i.e. decoys), the method predicts the binding affinity of the query proteins when the actual structure of the complex itself is unknown. We tested our approach on a set of globular and soluble proteins of the newest affinity benchmark, obtaining accuracy values comparable to other state-of-art methods: a 0.4 correlation coefficient between the experimental and predicted values of DeltaG and an error < 3 Kcal/mol. Availability and implementation: The binding affinity predictor is implemented and available at http://sbi.upf.edu/BADock and https://github.com/badocksbi/BADock. Contact: j.planas-iglesias@warwick.ac.uk or baldo.oliva@upf.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028892 TI - Nephele: a cloud platform for simplified, standardized and reproducible microbiome data analysis. AB - Motivation: Widespread interest in the study of the microbiome has resulted in data proliferation and the development of powerful computational tools. However, many scientific researchers lack the time, training, or infrastructure to work with large datasets or to install and use command line tools. Results: The National Institute of Allergy and Infectious Diseases (NIAID) has created Nephele, a cloud-based microbiome data analysis platform with standardized pipelines and a simple web interface for transforming raw data into biological insights. Nephele integrates common microbiome analysis tools as well as valuable reference datasets like the healthy human subjects cohort of the Human Microbiome Project (HMP). Nephele is built on the Amazon Web Services cloud, which provides centralized and automated storage and compute capacity, thereby reducing the burden on researchers and their institutions. Availability and implementation: https://nephele.niaid.nih.gov and https://github.com/niaid/Nephele. Contact: darrell.hurt@nih.gov. PMID- 29028893 TI - Canvas SPW: calling de novo copy number variants in pedigrees. AB - Motivation: Whole genome sequencing is becoming a diagnostics of choice for the identification of rare inherited and de novo copy number variants in families with various pediatric and late-onset genetic diseases. However, joint variant calling in pedigrees is hampered by the complexity of consensus breakpoint alignment across samples within an arbitrary pedigree structure. Results: We have developed a new tool, Canvas SPW, for the identification of inherited and de novo copy number variants from pedigree sequencing data. Canvas SPW supports a number of family structures and provides a wide range of scoring and filtering options to automate and streamline identification of de novo variants. Availability and implementation: Canvas SPW is available for download from https://github.com/Illumina/canvas. Contact: sivakhno@illumina.com. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028894 TI - AQUa: an adaptive framework for compression of sequencing quality scores with random access functionality. AB - Motivation: The past decade has seen the introduction of new technologies that significantly lowered the cost of genome sequencing. As a result, the amount of genomic data that must be stored and transmitted is increasing exponentially. To mitigate storage and transmission issues, we introduce a framework for lossless compression of quality scores. Results: This article proposes AQUa, an adaptive framework for lossless compression of quality scores. To compress these quality scores, AQUa makes use of a configurable set of coding tools, extended with a Context-Adaptive Binary Arithmetic Coding scheme. When benchmarking AQUa against generic single-pass compressors, file sizes are reduced by up to 38.49% when comparing with GNU Gzip and by up to 6.48% when comparing with 7-Zip at the Ultra Setting, while still providing support for random access. When comparing AQUa with the purpose-built, single-pass, and state-of-the-art compressor SCALCE, which does not support random access, file sizes are reduced by up to 21.14%. When comparing AQUa with the purpose-built, dual-pass, and state-of-the-art compressor QVZ, which does not support random access, file sizes are larger by 6.42-33.47%. However, for one test file, the file size is 0.38% smaller, illustrating the strength of our single-pass compression framework. This work has been spurred by the current activity on genomic information representation (MPEG G) within the ISO/IEC SC29/WG11 technical committee. Availability and implementation: The software is available on Github: https://github.com/tparidae/AQUa. Contact: tom.paridaens@ugent.be. PMID- 29028895 TI - CCmiR: A computational approach for competitive and cooperative microRNA binding prediction. AB - Motivation: The identification of microRNA (miRNA) target sites is important. In the past decade, dozens of computational methods have been developed to predict miRNA target sites. Despite their existence, rarely does a method consider the well-known competition and cooperation among miRNAs when attempts to discover target sites. To fill this gap, we developed a new approach called CCmiR, which takes the cooperation and competition of multiple miRNAs into account in a statistical model to predict their target sites. Results: Tested on four different datasets, CCmiR predicted miRNA target sites with a high recall and a reasonable precision, and identified known and new cooperative and competitive miRNAs supported by literature. Compared with three state-of-the-art computational methods, CCmiR had a higher recall and a higher precision. Availability: CCmiR is freely available at http://hulab.ucf.edu/research/projects/miRNA/CCmiR. Contact: xiaoman@mail.ucf.edu, haihu@cs.ucf.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028896 TI - PyDREAM: high-dimensional parameter inference for biological models in python. AB - Summary: Biological models contain many parameters whose values are difficult to measure directly via experimentation and therefore require calibration against experimental data. Markov chain Monte Carlo (MCMC) methods are suitable to estimate multivariate posterior model parameter distributions, but these methods may exhibit slow or premature convergence in high-dimensional search spaces. Here, we present PyDREAM, a Python implementation of the (Multiple-Try) Differential Evolution Adaptive Metropolis [DREAM(ZS)] algorithm developed by Vrugt and ter Braak (2008) and Laloy and Vrugt (2012). PyDREAM achieves excellent performance for complex, parameter-rich models and takes full advantage of distributed computing resources, facilitating parameter inference and uncertainty estimation of CPU-intensive biological models. Availability and implementation: PyDREAM is freely available under the GNU GPLv3 license from the Lopez lab GitHub repository at http://github.com/LoLab-VU/PyDREAM. Contact: c.lopez@vanderbilt.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028897 TI - Sipros Ensemble improves database searching and filtering for complex metaproteomics. AB - Motivation: Complex microbial communities can be characterized by metagenomics and metaproteomics. However, metagenome assemblies often generate enormous, and yet incomplete, protein databases, which undermines the identification of peptides and proteins in metaproteomics. This challenge calls for increased discrimination of true identifications from false identifications by database searching and filtering algorithms in metaproteomics. Results: Sipros Ensemble was developed here for metaproteomics using an ensemble approach. Three diverse scoring functions from MyriMatch, Comet and the original Sipros were incorporated within a single database searching engine. Supervised classification with logistic regression was used to filter database searching results. Benchmarking with soil and marine microbial communities demonstrated a higher number of peptide and protein identifications by Sipros Ensemble than MyriMatch/Percolator, Comet/Percolator, MS-GF+/Percolator, Comet & MyriMatch/iProphet and Comet & MyriMatch & MS-GF+/iProphet. Sipros Ensemble was computationally efficient and scalable on supercomputers. Availability and implementation: Freely available under the GNU GPL license at http://sipros.omicsbio.org. Contact: cpan@utk.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028898 TI - diffloop: a computational framework for identifying and analyzing differential DNA loops from sequencing data. AB - Summary: The 3D architecture of DNA within the nucleus is a key determinant of interactions between genes, regulatory elements, and transcriptional machinery. As a result, differences in DNA looping structure are associated with variation in gene expression and cell state. To systematically assess changes in DNA looping architecture between samples, we introduce diffloop, an R/Bioconductor package that provides a suite of functions for the quality control, statistical testing, annotation, and visualization of DNA loops. We demonstrate this functionality by detecting differences between ENCODE ChIA-PET samples and relate looping to variability in epigenetic state. Availability and implementation: Diffloop is implemented as an R/Bioconductor package available at https://bioconductor.org/packages/release/bioc/html/diffloop.html. Contact: aryee.martin@mgh.harvard.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028899 TI - Phandango: an interactive viewer for bacterial population genomics. AB - Summary: Fully exploiting the wealth of data in current bacterial population genomics datasets requires synthesising and integrating different types of analysis across millions of base pairs in hundreds or thousands of isolates. Current approaches often use static representations of phylogenetic, epidemiological, statistical and evolutionary analysis results that are difficult to relate to one another. Phandango is an interactive application running in a web browser allowing fast exploration of large-scale population genomics datasets combining the output from multiple genomic analysis methods in an intuitive and interactive manner. Availability: Phandango is a web application freely available for use at www.phandango.net and includes a diverse collection of datasets as examples. Source code together with a detailed wiki page is available on GitHub at https://github.com/jameshadfield/phandango. Contact: jh22@sanger.ac.uk, sh16@sanger.ac.uk. PMID- 29028901 TI - A collaborative filtering-based approach to biomedical knowledge discovery. AB - Motivation: The increase in publication rates makes it challenging for an individual researcher to stay abreast of all relevant research in order to find novel research hypotheses. Literature-based discovery methods make use of knowledge graphs built using text mining and can infer future associations between biomedical concepts that will likely occur in new publications. These predictions are a valuable resource for researchers to explore a research topic. Current methods for prediction are based on the local structure of the knowledge graph. A method that uses global knowledge from across the knowledge graph needs to be developed in order to make knowledge discovery a frequently used tool by researchers. Results: We propose an approach based on the singular value decomposition (SVD) that is able to combine data from across the knowledge graph through a reduced representation. Using cooccurrence data extracted from published literature, we show that SVD performs better than the leading methods for scoring discoveries. We also show the diminishing predictive power of knowledge discovery as we compare our predictions with real associations that appear further into the future. Finally, we examine the strengths and weaknesses of the SVD approach against another well-performing system using several predicted associations. Availability and implementation: All code and results files for this analysis can be accessed at https://github.com/jakelever/knowledgediscovery. Contact: sjones@bcgsc.ca. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028902 TI - graphkernels: R and Python packages for graph comparison. AB - Summary: Measuring the similarity of graphs is a fundamental step in the analysis of graph-structured data, which is omnipresent in computational biology. Graph kernels have been proposed as a powerful and efficient approach to this problem of graph comparison. Here we provide graphkernels, the first R and Python graph kernel libraries including baseline kernels such as label histogram based kernels, classic graph kernels such as random walk based kernels, and the state of-the-art Weisfeiler-Lehman graph kernel. The core of all graph kernels is implemented in C ++ for efficiency. Using the kernel matrices computed by the package, we can easily perform tasks such as classification, regression and clustering on graph-structured samples. Availability and implementation: The R and Python packages including source code are available at https://CRAN.R project.org/package=graphkernels and https://pypi.python.org/pypi/graphkernels. Contact: mahito@nii.ac.jp or elisabetta.ghisu@bsse.ethz.ch. Supplementary information: Supplementary data are available online at Bioinformatics. PMID- 29028903 TI - Comparative analysis of differential gene expression tools for RNA sequencing time course data. AB - RNA sequencing (RNA-seq) has become a standard procedure to investigate transcriptional changes between conditions and is routinely used in research and clinics. While standard differential expression (DE) analysis between two conditions has been extensively studied, and improved over the past decades, RNA seq time course (TC) DE analysis algorithms are still in their early stages. In this study, we compare, for the first time, existing TC RNA-seq tools on an extensive simulation data set and validated the best performing tools on published data. Surprisingly, TC tools were outperformed by the classical pairwise comparison approach on short time series (<8 time points) in terms of overall performance and robustness to noise, mostly because of high number of false positives, with the exception of ImpulseDE2. Overlapping of candidate lists between tools improved this shortcoming, as the majority of false-positive, but not true-positive, candidates were unique for each method. On longer time series, pairwise approach was less efficient on the overall performance compared with splineTC and maSigPro, which did not identify any false-positive candidate. PMID- 29028900 TI - Unravelling the biological secrets of microchimerism by single-cell analysis. AB - The presence of microchimeric cells is known for >100 years and well documented since decades. Earlier, microchimeric cells were mainly used for cell-based non invasive prenatal diagnostics during early pregnancy. Microchimeric cells are also present beyond delivery and are associated to various autoimmune diseases, tissue repair, cancer and immune tolerance. All these findings were based on low complexity studies and occasionally accompanied by artefacts not allowing the biological functions of microchimerism to be determined. However, with the recent developments in single-cell analysis, new means to identify and characterize microchimeric cells are available. Cell labelling techniques in combination with single-cell analysis provide a new toolbox to decipher the biology of microchimeric cells at molecular and cellular level. In this review, we discuss how recent developments in single-cell analysis can be applied to determine the role and function of microchimeric cells. PMID- 29028904 TI - Considerations for Clinical Neuropsychological Evaluation in Amyotrophic Lateral Sclerosis. AB - The clinical neuropsychologist has the opportunity to be uniquely involved in the evaluation and treatment of individuals with amyotrophic lateral sclerosis (ALS). We review the current literature that defines cognitive and behavioral symptoms in ALS, including current knowledge of the neuropathological and genetic underpinning for these symptoms. There are unique considerations for clinical neuropsychological evaluation and clinical research in ALS and we highlight these in this review. Specifically, we shed light on special factors that contribute to our understanding of cognitive and behavioral impairment in ALS, including co morbid symptoms, differential diagnosis, and considerations for longitudinal tracking of phenotypes. We discuss the rationale for proposing a specific approach to such as cognitive screening, test selection, response modality consideration, and test-retest intervals. With this didactic overview, the clinical neuropsychologist has the potential to learn more about the heterogeneous presentation of motor and neuropsychological symptoms in ALS. Furthermore, the reader has the opportunity to understand what it takes to develop a valid assessment approach particularly when the phenotype of ALS remains undefined in some regards. This clinical practice review sets the stage for the clinical neuropsychologist to further contribute to our clinical and scientific understanding of ALS and cognition. PMID- 29028906 TI - Critical assessment and performance improvement of plant-pathogen protein-protein interaction prediction methods. AB - The identification of plant-pathogen protein-protein interactions (PPIs) is an attractive and challenging research topic for deciphering the complex molecular mechanism of plant immunity and pathogen infection. Considering that the experimental identification of plant-pathogen PPIs is time-consuming and labor intensive, computational methods are emerging as an important strategy to complement the experimental methods. In this work, we first evaluated the performance of traditional computational methods such as interolog, domain-domain interaction and domain-motif interaction in predicting known plant-pathogen PPIs. Owing to the low sensitivity of the traditional methods, we utilized Random Forest to build an inter-species PPI prediction model based on multiple sequence encodings and novel network attributes in the established plant PPI network. Critical assessment of the features demonstrated that the integration of sequence information and network attributes resulted in significant and robust performance improvement. Additionally, we also discussed the influence of Gene Ontology and gene expression information on the prediction performance. The Web server implementing the integrated prediction method, named InterSPPI, has been made freely available at http://systbio.cau.edu.cn/intersppi/index.php. InterSPPI could achieve a reasonably high accuracy with a precision of 73.8% and a recall of 76.6% in the independent test. To examine the applicability of InterSPPI, we also conducted cross-species and proteome-wide plant-pathogen PPI prediction tests. Taken together, we hope this work can provide a comprehensive understanding of the current status of plant-pathogen PPI predictions, and the proposed InterSPPI can become a useful tool to accelerate the exploration of plant-pathogen interactions. PMID- 29028905 TI - Quality of biological images, reconstructed using localization microscopy data. AB - Motivation: Fluorescence localization microscopy is extensively used to study the details of spatial architecture of subcellular compartments. This modality relies on determination of spatial positions of fluorophores, labeling an extended biological structure, with precision exceeding the diffraction limit. Several established models describe influence of pixel size, signal-to-noise ratio and optical resolution on the localization precision. The labeling density has been also recognized as important factor affecting reconstruction fidelity of the imaged biological structure. However, quantitative data on combined influence of sampling and localization errors on the fidelity of reconstruction are scarce. It should be noted that processing localization microscopy data is similar to reconstruction of a continuous (extended) non-periodic signal from a non-uniform, noisy point samples. In two dimensions the problem may be formulated within the framework of matrix completion. However, no systematic approach has been adopted in microscopy, where images are typically rendered by representing localized molecules with Gaussian distributions (widths determined by localization precision). Results: We analyze the process of two-dimensional reconstruction of extended biological structures as a function of the density of registered emitters, localization precision and the area occupied by the rendered localized molecule. We quantify overall reconstruction fidelity with different established image similarity measures. Furthermore, we analyze the recovered similarity measure in the frequency space for different reconstruction protocols. We compare the cut-off frequency to the limiting sampling frequency, as determined by labeling density. Availability and implementation: The source code used in the simulations along with test images is available at https://github.com/blazi13/qbioimages. Contact: bruszczy@nencki.gov.pl or t.bernas@nencki.gov.pl. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028907 TI - OncomiR: an online resource for exploring pan-cancer microRNA dysregulation. AB - Summary: Dysregulation of microRNAs (miRNAs) is extensively associated with cancer development and progression. miRNAs have been shown to be biomarkers for predicting tumor formation and outcome. However, identification of the relationships between miRNA expression and tumor characteristics can be difficult and time-consuming without appropriate bioinformatics expertise. To address this issue, we present OncomiR, an online resource for exploring miRNA dysregulation in cancer. Using combined miRNA-seq, RNA-seq and clinical data from The Cancer Genome Atlas, we systematically performed statistical analyses to identify dysregulated miRNAs that are associated with tumor development and progression in most major cancer types. Additional analyses further identified potential miRNA gene target interactions in tumors. These results are stored in a backend database and presented through a web server interface. Moreover, through a backend bioinformatics pipeline, OncomiR can also perform dynamic analysis with custom miRNA selections for in-depth characterization of miRNAs in cancer. Availability and implementation: The OncomiR website is freely accessible at www.oncomir.org. Contact: xiaowei.wang@wustl.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028909 TI - The systematic analysis of ultraconserved genomic regions in the budding yeast. AB - Motivation: In the evolution of species, a kind of special sequences, termed ultraconserved sequences (UCSs), have been inherited without any change, which strongly suggests those sequences should be crucial for the species to survive or adapt to the environment. However, the UCSs are still regarded as mysterious genetic sequences so far. Here, we present a systematic study of ultraconserved genomic regions in the budding yeast based on the publicly available genome sequences, in order to reveal their relationship with the adaptability or fitness advantages of the budding yeast. Results: Our results indicate that, in addition to some fundamental biological functions, the UCSs play an important role in the adaptation of Saccharomyces cerevisiae to the acidic environment, which is backed up by the previous observation. Besides that, we also find the highly unchanged genes are enriched in some other pathways, such as the nutrient-sensitive signaling pathway. To facilitate the investigation of unique UCSs, the UCSC Genome Browser was utilized to visualize the chromosomal position and related annotations of UCSs in S.cerevisiae genome. Availability and implementation: For more details on UCSs, please refer to the Supplementary information online, and the custom code is available on request. Contact: fgao@tju.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028908 TI - Negative Affect Is Associated With Higher Risk of Incident Cognitive Impairment in Nondepressed Postmenopausal Women. AB - Background: Positive affect (PA) and negative affect (NA) reflect subjective emotional experiences. Although related to depression and anxiety, these dimensions are distinct constructs representing affective states and patterns. Prior studies suggest that elevated depressive symptoms are associated with risk of mild cognitive impairment (MCI) and probable dementia, but whether affective states are associated with cognitive impairment is still unknown. The present study examined relationships between baseline affective states and cognitive impairment (MCI, probable dementia) in nondepressed women. Method: Baseline PA and NA were assessed in postmenopausal women (N = 2,137; mean age = 73.8 years) from the Women's Health Initiative Study of Cognitive Aging (WHISCA) using the Positive and Negative Affect Schedule (PANAS). Women were followed annually for an average of 11.3 years; those with elevated depressive symptoms at baseline were excluded. Results: Higher NA was associated with a higher risk of MCI and probable dementia, even after adjusting for important covariates including age, education, sociodemographic, lifestyle, and cardiovascular risk factors, global cognition, and hormone therapy assignment at baseline. PA was not significantly associated with either outcome. Conclusions: We present the first evidence to date that greater NA, even in the absence of elevated depressive symptoms, is associated with higher risk of MCI and dementia. This suggests that NA may be an important, measureable and potentially modifiable risk factor for age-related cognitive decline. PMID- 29028910 TI - Assessment of changes in lactate concentration with intravascular microdialysis during high-risk cardiac surgery using the trend interchangeability method. AB - Background: Blood lactate is a strong predictor of mortality, and repeated blood lactate assays are recommended during surgery in high-risk patients. We hypothesized that the use of intravascular microdialysis incorporated in a central venous catheter would be interchangeable with the reference blood gas technique to monitor changes in blood lactate. Methods: Microdialysis and central venous blood lactate measurements were recorded simultaneously in high-risk cardiac surgical patients. The correlation between absolute values was determined by linear regression, and the Bland-Altman test for repeated measurements was used to compare bias, precision, and limits of agreement. Changes in lactate measurements were evaluated with a four-quadrant plot and trend interchangeability method (TIM). Results: In the 23 patients analysed, the central venous catheter was used as part of standard care, with no complications. The correlation coefficient for absolute values ( n =104) was 0.96 ( P <0.0001). The bias, precision, and limits of agreement were -0.19, 0.51, and -1.20 to 0.82 mmol litre -1 , respectively. The concordance rate for changes in blood lactate measurements ( n =80) was 94% with the four-quadrant plot. In contrast, the TIM showed that 23 (29) changes in lactate measurements were not interpretable, and among the remaining 57 (71) interpretable changes, 18 (32) were interchangeable, 8 (14) were in the grey zone, and 31 (54) were not interchangeable. Conclusions: Microdialysis with a central venous catheter appears to provide reliable absolute blood lactate values. Although changes in blood lactate measurements showed an excellent concordance rate, changes between the two methods were poorly interchangeable with the TIM. Clinical trial registration: NCT02296593. PMID- 29028911 TI - Genome-wide pre-miRNA discovery from few labeled examples. AB - Motivation: Although many machine learning techniques have been proposed for distinguishing miRNA hairpins from other stem-loop sequences, most of the current methods use supervised learning, which requires a very good set of positive and negative examples. Those methods have important practical limitations when they have to be applied to a real prediction task. First, there is the challenge of dealing with a scarce number of positive (well-known) pre-miRNA examples. Secondly, it is very difficult to build a good set of negative examples for representing the full spectrum of non-miRNA sequences. Thirdly, in any genome, there is a huge class imbalance (1: 10 000) that is well-known for particularly affecting supervised classifiers. Results: To enable efficient and speedy genome wide predictions of novel miRNAs, we present miRNAss, which is a novel method based on semi-supervised learning. It takes advantage of the information provided by the unlabeled stem-loops, thereby improving the prediction rates, even when the number of labeled examples is low and not representative of the classes. An automatic method for searching negative examples to initialize the algorithm is also proposed so as to spare the user this difficult task. MiRNAss obtained better prediction rates and shorter execution times than state-of-the-art supervised methods. It was validated with genome-wide data from three model species, with more than one million of hairpin sequences each, thereby demonstrating its applicability to a real prediction task. Availability and implementation: An R package can be downloaded from https://cran.r project.org/package=miRNAss. In addition, a web-demo for testing the algorithm is available at http://fich.unl.edu.ar/sinc/web-demo/mirnass. All the datasets that were used in this study and the sets of predicted pre-miRNA are available on http://sourceforge.net/projects/sourcesinc/files/mirnass. Contact: cyones@sinc.unl.edu.ar. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028912 TI - Evidence-based medicine: the clue is in the name. PMID- 29028913 TI - Does variable training lead to variable care? PMID- 29028914 TI - Trajectory of Total Cholesterol in the Last Years of Life Over Age 80 Years: Cohort Study of 99,758 Participants. AB - Background: Epidemiological studies suggest that lower total cholesterol (TC) may be associated with higher mortality. This study aimed to evaluate whether a decline in TC before death might account for the association of TC with mortality over age 80 years. Methods: Cohort study using primary care electronic health records of 99,758 participants aged 80-105 years from the UK Clinical Practice Research Datalink. Hazard ratios for all-cause mortality were adjusted for age, gender, frailty, comorbidity, blood pressure, and smoking. Fractional polynomial models were fitted to evaluate longitudinal trends in TC before death or end-of study. Adjusted odds ratios were estimated using generalized estimating equations. Results: There were 63,630 women and 36,128 men, mean age 86 years, with 29,200 deaths. There were 41,164 treated with statins at cohort entry. Compared with TC values of 4.5-5.4 mmol/L, TC values <3.0 mmol/L were associated with higher mortality (statin treated hazard ratios 1.53, 95% confidence interval 1.43-1.64, p < .001; not treated, 1.41, 1.29-1.54, p < .001). A secular decline in TC values accelerated in the last 2 years of life. In the last quarter of follow-up, the adjusted odds of TC < 3.0 mmol/L for those who died, compared with surviving participants, were 3.33 (2.84-3.91, p < .001) for untreated and 1.88 (1.68-2.11, p < .001) for statin-treated participants. Conclusions: TC values show a terminal decline in the last years of life. Reverse causation may contribute to the association of lower TC with higher mortality in nonrandomized studies. PMID- 29028915 TI - Point-of-care paediatric gastric sonography: can antral cut-off values be used to diagnose an empty stomach? AB - Background: Gastric sonography is emerging as a valuable clinical point-of-care tool to assess aspiration risk. A recent study proposed that a single cut-off cross-sectional area (CSA) in the supine position could diagnose an empty stomach in the parturient. This study establishes the sensitivity and specificity of a single CSA cut-off measurement in both supine and right lateral decubitus (RLD) positions in the diagnosis of an empty antrum in paediatric patients. Methods: Following induction of anaesthesia, antral sonography was performed in supine and RLD positions in 100 fasted paediatric patients prior to upper endoscopic evaluation. Following upper endoscopy, any residual stomach content was suctioned under direct visualization and antral sonography was immediately performed. Antral CSA values were compared using Wilcoxon signed rank test. Receiver operator characteristic (ROC) curves were plotted to estimate the discriminating power of antral sonography position in the diagnosis of an empty antrum. Results: Significant differences were found between pre-suctioned and post-suctioned CSA values in the RLD position. The cut-off CSAs of the empty antrum in the supine and RLD positions were 2.19 cm2 (sensitivity 75%, specificity 36%) and 3.07 cm2 (sensitivity 76%, specificity 67%), respectively. Conclusions: The RLD position produces the most sensitive and specific CSA cut-off value where an antral CSA of <= 3.07 cm2 in the RLD position presents with acceptable performance in the ability to discriminate an empty antrum in paediatric patients over 1 yr of age. As age increases, the sensitivity and specificity of this test increases in the RLD position. PMID- 29028916 TI - Hypertension and cataract surgery under loco-regional anaesthesia: not to be ignored? PMID- 29028917 TI - Comparative usability of modern anaesthesia ventilators: a human factors study. AB - Background: The anaesthesia ventilator represents the key equipment for intraoperative respiratory care. Improper operation of this device may threaten a patient's health. A self-explanatory interface facilitates handling and decreases the risk of operating errors. This study systematically evaluates the usability of user interfaces in four modern anaesthesia ventilators. Methods: Twenty naive operators were asked to execute 20 tasks on each of four different anaesthesia ventilators (Avance CS2TM, GE Healthcare; Flow-iTM, Maquet; and PerseusTM and PrimusTM, Drager) in a randomized order. The success of task execution, frequency of requests for assistance, and processing times were recorded. During the tasks, the operators' visual focus was measured via eye-tracking. Additionally, subjective assessments of usability were evaluated by a standardized questionnaire. For comparison, six experienced operators undertook the same protocol. Results: The overall rate of falsely executed tasks was low. Naive operators requested assistance least when using the Perseus (26). Pooled processing times were shortest for the Perseus (222 s), followed by the Primus (223 s), the Avance (238 s), and the Flow-i (353 s). Task-specific processing times differed considerably between the devices. Eye-tracking analyses revealed associated interface issues that impeded the operators' performance. Operators rated usability best for the Perseus [mean (sd): 67 (17) arbitrary units] and worst for the Flow-i [50 (16) arbitrary units]. Results from experienced operators support these findings by trend. Conclusions: The usability of modern anaesthesia ventilators differs considerably. Interface issues of specific tasks impair the operator's efficiency. Eliminating the specific usability issues might improve the operator's performance and, as a consequence, the patient's safety. PMID- 29028918 TI - Is science the answer? PMID- 29028919 TI - Physical Activity Producing Low, but Not Medium or Higher, Vertical Impacts Is Inversely Related to BMI in Older Adults: Findings From a Multicohort Study. AB - Background: High impact physical activity (PA) is thought to improve skeletal health, but its relation to other health outcomes are unclear. We investigated associations between PA impact magnitude and body mass index (BMI) in older adults. Methods: Data were taken from the Cohort for Skeletal Health in Bristol and Avon (COSHIBA), Hertfordshire Cohort Study, and MRC National Survey of Health and Development. Vertical acceleration peaks from 7-day hip-worn accelerometer recordings were used to classify PA as low (0.5 < g < 1.0g), medium (1 < g < 1.5g), or higher (>=1.5g) impact. Cohort-specific associations of low, medium, and higher impact PA with BMI were examined using linear regressions and estimates combined using random-effects meta-analysis. Results: A total of 1182 participants (mean age = 72.7 years, 68% female) were included. Low, medium, and higher impact PA were inversely related to BMI in initial models. After adjustment for confounders and other impacts, low, but not medium or higher, impacts were inversely related to BMI (-0.31, p < .001: overall combined standard deviation change in BMI per doubling in the number of low impacts). In adjusted analyses of body composition measured by dual-energy X-ray absorptiometry in COSHIBA, low, but not medium or higher, impacts were inversely related to total body fat mass (-0.19, p < .001) and android:gynoid fat mass ratio (-0.16, p = .01), whereas high impact PA was weakly and positively associated with lean mass (0.05, p = .06). Conclusions: Greater exposure to PA producing low magnitude vertical impacts was associated with lower BMI and fat mass at older age. Low impact PA may help reduce obesity risk in older adults. PMID- 29028920 TI - Perceived Fatigability and Objective Physical Activity in Mid- to Late-Life. AB - Background: Fatigability, defined as fatigue in relation to a standardized task, predicts functional decline in older adults independent of reported tiredness or energy level. Although the sensation of fatigue, tiredness, and energy level adversely affect physical activity (PA), the association between fatigability and objectively measured PA is unknown. Methods: Participants in the Baltimore Longitudinal Study of Aging (n = 557, 50% women, aged 50-97 years) were instructed to wear an Actiheart accelerometer for 7 consecutive days in the free living environment. Perceived fatigability was assessed using the Borg rating of perceived exertion (RPE) after 5 minutes of treadmill walking at 1.5 mph (0.67 m/s) and categorized as low (6-7 RPE), intermediate (8-9 RPE), and high (10+ RPE) fatigability. Time-of-day PA differences between fatigability groups were assessed using mixed-effects modeling. Results: Total daily PA was 1.3% lower for every unit increment in perceived fatigability after adjusting for demographic, behavioral, and medical factors (p = .01). In time-of-day analyses, the high fatigability group was less active compared to the low fatigability group throughout the day (8:00 am to 8:00 pm) and the intermediate fatigability group in the morning (8:00 am to 12:00 pm). Patterns of PA within the high fatigability group differed from both the intermediate and low groups in the morning but mirrored the intermediate group in the afternoon and evening. Discussion: These results suggest that RPE is a bio-marker of fatigability associated with progressively lower PA with aging. Whether the effects of fatigability occurring at the end of the day reflect waning energy levels or a voluntary choice that could be modified remains to be evaluated. PMID- 29028921 TI - SmartPilot(r) view-guided anaesthesia improves postoperative outcomes in hip fracture surgery: a randomized blinded controlled study. AB - Background: Both under-dosage and over-dosage of general anaesthetics can harm frail patients. We hypothesised that computer-assisted anaesthesia using pharmacokinetic/pharmacodynamic models guided by SmartPilot(r) View (SPV) software could optimise depth of anaesthesia and improve outcomes in patients undergoing hip fracture surgery. Methods: This prospective, randomized, single centre, blinded trial included patients undergoing hip fracture surgery under general anaesthesia. In the intervention group, anaesthesia was guided using SPV with predefined targets. In the control group, anaesthesia was delivered by usual practice using the same agents (propofol, sufentanil and desflurane). The primary endpoint was the time spent in the "appropriate anaesthesia zone" defined as bispectral index (BIS) (blinded to the anaesthetist during surgery) of 45-60 and systolic arterial pressure of 80-140 mm Hg. Postoperative complications were recorded for one month in a blinded manner. Results: Of 100 subjects randomised, 97 were analysed (n=47 in SPV and 50 in control group). Anaesthetic drug consumption was reduced in the SPV group (for propofol and desflurane). Intraoperative duration of low BIS (<45) was similar, but cumulative time of low systolic arterial pressure (<80 mm Hg) was significantly shorter in the SPV group (median (Q1-Q3); 3 (0-40) vs 5 (0-116) min, P=0.013). SPV subjects experienced fewer moderate or major postoperative complications at 30-days (8 (17)% vs 18 (36)%, P=0.035) and shorter length of hospitalisation (8 (2-20) vs 8 (2-60) days, P=0.017). Conclusions: SmartPilot(r) View-guided anaesthesia reduces intraoperative hypotension duration, occurrence of postoperative complications and length of stay in hip fracture surgery patients. Clinical trial registration: NCT 02556658. PMID- 29028922 TI - Methods for handling longitudinal outcome processes truncated by dropout and death. AB - Cohort data are often incomplete because some subjects drop out of the study, and inverse probability weighting (IPW), multiple imputation (MI), and linear increments (LI) are methods that deal with such missing data. In cohort studies of ageing, missing data can arise from dropout or death. Methods that do not distinguish between these reasons for missingness typically provide inference about a hypothetical cohort where no one can die (immortal cohort). It has been suggested that inference about the cohort composed of those who are still alive at any time point (partly conditional inference) may be more meaningful. MI, LI, and IPW can all be adapted to provide partly conditional inference. In this article, we clarify and compare the assumptions required by these MI, LI, and IPW methods for partly conditional inference on continuous outcomes. We also propose augmented IPW estimators for making partly conditional inference. These are more efficient than IPW estimators and more robust to model misspecification. Our simulation studies show that the methods give approximately unbiased estimates of partly conditional estimands when their assumptions are met, but may be biased otherwise. We illustrate the application of the missing data methods using data from the 'Origins of Variance in the Old-old' Twin study. PMID- 29028923 TI - Detecting presence of mutational signatures in cancer with confidence. AB - Motivation: Cancers arise as the result of somatically acquired changes in the DNA of cancer cells. However, in addition to the mutations that confer a growth advantage, cancer genomes accumulate a large number of somatic mutations resulting from normal DNA damage and repair processes as well as carcinogenic exposures or cancer related aberrations of DNA maintenance machinery. These mutagenic processes often produce characteristic mutational patterns called mutational signatures. The decomposition of a cancer genome's mutation catalog into mutations consistent with such signatures can provide valuable information about cancer etiology. However, the results from different decomposition methods are not always consistent. Hence, one needs to be able to not only decompose a patient's mutational profile into signatures but also establish the accuracy of such decomposition. Results: We proposed two complementary ways of measuring confidence and stability of decomposition results and applied them to analyze mutational signatures in breast cancer genomes. We identified both very stable and highly unstable signatures, as well as signatures that previously have not been associated with breast cancer. We also provided additional support for the novel signatures. Our results emphasize the importance of assessing the confidence and stability of inferred signature contributions. Availability: All tools developed in this paper have been implemented in an R package, called SignatureEstimation, which is available from https://www.ncbi.nlm.nih.gov/CBBresearch/Przytycka/index.cgi#signatureestimation. Contact: wojtowda@ncbi.nlm.nih.gov (D.W.), przytyck@ncbi.nlm.nih.gov (T.M.P.). Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028924 TI - Survivor bias in Mendelian randomization analysis. AB - Mendelian randomization studies employ genotypes as experimental handles to infer the effect of genetically modified exposures (e.g. vitamin D exposure) on disease outcomes (e.g. mortality). The statistical analysis of these studies makes use of the standard instrumental variables framework. Many of these studies focus on elderly populations, thereby ignoring the problem of left truncation, which arises due to the selection of study participants being conditional upon surviving up to the time of study onset. Such selection, in general, invalidates the assumptions on which the instrumental variables analysis rests. We show that Mendelian randomization studies of adult or elderly populations will therefore, in general, return biased estimates of the exposure effect when the considered genotype affects mortality; in contrast, standard tests of the causal null hypothesis that the exposure does not affect the mortality rate remain unbiased, even when they ignore this problem of left truncation. To eliminate "survivor bias" or "truncation bias" from the effect of exposure on mortality, we next propose various simple strategies under a semi-parametric additive hazard model. We examine the performance of the proposed methods in simulation studies and use them to infer the effect of vitamin D on all-cause mortality based on the Monica10 study with the genetic variant filaggrin as instrumental variable. PMID- 29028925 TI - Influence of Bayesian optimization on the performance of propofol target controlled infusion. AB - Background: Target controlled infusion (TCI) systems use population-based pharmacokinetic (PK) models that do not take into account inter-individual residual variation. This study compares the bias and inaccuracy of a population based vs a personalized TCI propofol titration using Bayesian adaptation. Haemodynamic and hypnotic stability, and the prediction probability of alternative PK models, was studied. Methods: A double-blinded, prospective randomized controlled trial of 120 subjects undergoing cardiac surgery was conducted. Blood samples were obtained at 10, 35, 50, 65, 75 and 120 min and analysed using a point-of-care propofol blood analyser. Bayesian adaptation of the PK model was applied at 60 min in the intervention group. Median (Absolute) Performance Error (Md(A)PE) was used to evaluate the difference between bias and inaccuracy of the models. Haemodynamic (mean arterial pressure [MAP], heart rate) and hypnotic (bispectral index [BIS]) stability was studied. The predictive performance of four alternative propofol PK models was studied. Results: MdPE and MdAPE did not differ between groups during the pre-adjustment period (control group: 6.3% and 16%; intervention group: 5.4% and 18%). MdPE differed in the post adjustment period (12% vs. -0.3%), but MdAPE did not (18% vs. 15%). No difference in heart rate, MAP or BIS was found. Compared with the other models, the Eleveld propofol PK model (patients) showed the best prediction performance. Conclusions: When an accurate population-based PK model was used for propofol TCI, Bayesian adaption of the model improved bias but not precision. Clinical trial registration: Dutch Trial Registry NTR4518. PMID- 29028926 TI - Structure-based prediction of protein- peptide binding regions using Random Forest. AB - Motivation: Protein-peptide interactions are one of the most important biological interactions and play crucial role in many diseases including cancer. Therefore, knowledge of these interactions provides invaluable insights into all cellular processes, functional mechanisms, and drug discovery. Protein-peptide interactions can be analyzed by studying the structures of protein-peptide complexes. However, only a small portion has known complex structures and experimental determination of protein-peptide interaction is costly and inefficient. Thus, predicting peptide-binding sites computationally will be useful to improve efficiency and cost effectiveness of experimental studies. Here, we established a machine learning method called SPRINT-Str (Structure-based prediction of protein-Peptide Residue-level Interaction) to use structural information for predicting protein-peptide binding residues. These predicted binding residues are then employed to infer the peptide-binding site by a clustering algorithm. Results: SPRINT-Str achieves robust and consistent results for prediction of protein-peptide binding regions in terms of residues and sites. Matthews' Correlation Coefficient (MCC) for 10-fold cross validation and independent test set are 0.27 and 0.293, respectively, as well as 0.775 and 0.782, respectively for area under the curve. The prediction outperforms other state-of-the-art methods, including our previously developed sequence-based method. A further spatial neighbor clustering of predicted binding residues leads to prediction of binding sites at 20-116% higher coverage than the next best method at all precision levels in the test set. The application of SPRINT-Str to protein binding with DNA, RNA and carbohydrate confirms the method's capability of separating peptide-binding sites from other functional sites. More importantly, similar performance in prediction of binding residues and sites is obtained when experimentally determined structures are replaced by unbound structures or quality model structures built from homologs, indicating its wide applicability. Availability and implementation: http://sparks lab.org/server/SPRINT-Str. Contact: yangyd25@mail.sysu.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028927 TI - Tumor origin detection with tissue-specific miRNA and DNA methylation markers. AB - Motivation: A clear identification of the primary site of tumor is of great importance to the next targeted site-specific treatments and could efficiently improve patient's overall survival. Even though many classifiers based on gene expression had been proposed to predict the tumor primary, only a few studies focus on using DNA methylation (DNAm) profiles to develop classifiers, and none of them compares the performance of classifiers based on different profiles. Results: We introduced novel selection strategies to identify highly tissue specific CpG sites and then used the random forest approach to construct the classifiers to predict the origin of tumors. We also compared the prediction performance by applying similar strategy on miRNA expression profiles. Our analysis indicated that these classifiers had an accuracy of 96.05% (Maximum Relevance-Maximum-Distance: 90.02-99.99%) or 95.31% (principal component analysis: 79.82-99.91%) on independent DNAm datasets, and an overall accuracy of 91.30% (range 79.33-98.74%) on independent miRNA test sets for predicting tumor origin. This suggests that our feature selection methods are very effective to identify tissue-specific biomarkers and the classifiers we developed can efficiently predict the origin of tumors. We also developed a user-friendly webserver that helps users to predict the tumor origin by uploading miRNA expression or DNAm profile of their interests. Availability and implementation: The webserver, and relative data, code are accessible at http://server.malab.cn/MMCOP/. Contact: zouquan@nclab.net or a.teschendorff@ucl.ac.uk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028928 TI - Effectiveness of tip rotation in fibreoptic bronchoscopy under different experimental conditions: an in vitro crossover study. AB - Background: Proper manipulation of fibreoptic bronchoscopes is essential for successful tracheal intubation or diagnostic bronchoscopy. Failure of proper navigation and rotation of the fibrescope may lead to difficulties in advancing the fibrescope and might also be responsible for (unnecessary) difficulties and delays in fibreoptic tracheal intubation, with subsequent hypoxaemia. The present study, therefore, aimed to assess the effectiveness of tip rotation in flexible bronchoscopes in different experimental conditions. Methods: Five differently sized pairs of fibrescopes (outer diameters of 2.2, 2.4, 3.5, 4.2, and 5.2 mm) were inserted into paediatric airway manikins via an appropriately sized laryngeal mask and were turned clockwise or anticlockwise at the fibrescope body or cord to 45, 90, and 180 degrees , with the cord held either straight or bent. The primary outcome measure was the ratio of rotation measured at the tip over the rotation performed with the fibrescope body or cord. Results: Overall, the 'body' turn was significantly less effective when a bent cord was present (mean difference ranging from 29.8% (95% confidence interval 8.8-50.9) to 117.4% (93.6 141.2). This difference was diminished when the 'cord' turn was performed. Smaller fibrescopes, with outer diameters of 2.2 and 2.4 mm, were inferior with respect to the transmission of 'body' rotation to the tip. Conclusions: 'Cord' turning of the fibrescope appears to be more effective in rotating the tip than a turn of the fibrescope 'body' only. Straightening the fibrescope cord and combined 'body' and 'cord' turning are recommended. PMID- 29028929 TI - Peripheral i.v. analysis (PIVA) of venous waveforms for volume assessment in patients undergoing haemodialysis. AB - Background: The assessment of intravascular volume status remains a challenge for clinicians. Peripheral i.v. analysis (PIVA) is a method for analysing the peripheral venous waveform that has been used to monitor volume status. We present a proof-of-concept study for evaluating the efficacy of PIVA in detecting changes in fluid volume. Methods: We enrolled 37 hospitalized patients undergoing haemodialysis (HD) as a controlled model for intravascular volume loss. Respiratory rate (F0) and pulse rate (F1) frequencies were measured. PIVA signal was obtained by fast Fourier analysis of the venous waveform followed by weighing the magnitude of the amplitude of the pulse rate frequency. PIVA was compared with peripheral venous pressure and standard monitoring of vital signs. Results: Regression analysis showed a linear correlation between volume loss and change in the PIVA signal (R2=0.77). Receiver operator curves demonstrated that the PIVA signal showed an area under the curve of 0.89 for detection of 20 ml kg-1 change in volume. There was no correlation between volume loss and peripheral venous pressure, blood pressure or pulse rate. PIVA-derived pulse rate and respiratory rate were consistent with similar numbers derived from the bio-impedance and electrical signals from the electrocardiogram. Conclusions: PIVA is a minimally invasive, novel modality for detecting changes in fluid volume status, respiratory rate and pulse rate in spontaneously breathing patients with peripheral i.v. cannulas. PMID- 29028930 TI - Use of a hand-held digital cognitive aid in simulated crises: the MAX randomized controlled trial. AB - Background: Cognitive aids improve the technical performance of individuals and teams dealing with high-stakes crises. Hand-held electronic cognitive aids have rarely been investigated. A randomized controlled trial was conducted to investigate the effects of a smartphone application, named MAX (for Medical Assistance eXpert), on the technical and non-technical performance of anaesthesia residents dealing with simulated crises. Methods: This single-centre randomized, controlled, unblinded trial was conducted in the simulation centre at Lyon, France. Participants were anaesthesia residents with >1 yr of clinical experience. Each participant had to deal with two different simulated crises with and without the help of a digital cognitive aid. The primary outcome was technical performance, evaluated as adherence to guidelines. Two independent observers remotely assessed performance on video recordings. Results: Fifty-two residents were included between July 2015 and February 2016. Six participants were excluded for technical issues; 46 participants were confronted with a total of 92 high-fidelity simulation scenarios (46 with MAX and 46 without). Mean (sd) age was 27 (1.8) yr and clinical experience 3.2 (1.0) yr. Inter-rater agreement was 0.89 (95% confidence interval 0.85-0.92). Mean technical scores were higher when residents used MAX [82 (11.9) vs 59 (10.8)%; P<0.001]. Conclusion: The use of a hand-held cognitive aid was associated with better technical performance of residents dealing with simulated crises. These findings could help digital cognitive aids to find their way into daily medical practice and improve the quality of health care when dealing with high-stakes crises. Clinical trial registration: NCT02678819. PMID- 29028932 TI - Surgical pleth index: prediction of postoperative pain in children? AB - Background: Surgical Pleth Index (SPI) is a non-invasive, dimensionless score (0 100) aimed to allow an estimate of intraoperative nociception. Thus, it may be a useful tool to guide intraoperative analgesia. However, no optimum SPI target range for the use in children has yet been defined. It was the aim of this study to define a clinically appropriate SPI target to predict moderate-severe postoperative pain in children. Methods: After ethics approval 105 children (2-16 yr) undergoing elective sevoflurane/opioid-based anaesthesia were included. SPI was recorded directly before the end of surgery and compared with acute postoperative pain (age appropriately assessed on different pain scales in the age groups two to three yr, four to eight yr and nine to16 yr) in the postoperative acute care unit (PACU). Results: Data of 93 children were analysed. A significant negative correlation was found between age and SPI (r=-0.43; P=0.03). The SPI cut-off value with the highest sensitivity (76%) and specificity (62%) in all children combined was 40. The negative predictive value for SPI <= 40 to predict the absence of moderate-severe pain in PACU was 87.5%. The commonly used SPI cut-off (50) published in all related studies had neither any clinically relevant sensitivity nor specificity to predict the presence or absence of acute pain in PACU. Conclusions: The results suggest that a lower (<= 40) than previously published (50) target for SPI may be more appropriate in studies investigating SPI guided anaesthesia in children, if the avoidance of moderate severe postoperative pain is the main goal. Clinical trial registration: ACTRN12616001139460. PMID- 29028931 TI - DeepGO: predicting protein functions from sequence and interactions using a deep ontology-aware classifier. AB - Motivation: A large number of protein sequences are becoming available through the application of novel high-throughput sequencing technologies. Experimental functional characterization of these proteins is time-consuming and expensive, and is often only done rigorously for few selected model organisms. Computational function prediction approaches have been suggested to fill this gap. The functions of proteins are classified using the Gene Ontology (GO), which contains over 40 000 classes. Additionally, proteins have multiple functions, making function prediction a large-scale, multi-class, multi-label problem. Results: We have developed a novel method to predict protein function from sequence. We use deep learning to learn features from protein sequences as well as a cross-species protein-protein interaction network. Our approach specifically outputs information in the structure of the GO and utilizes the dependencies between GO classes as background information to construct a deep learning model. We evaluate our method using the standards established by the Computational Assessment of Function Annotation (CAFA) and demonstrate a significant improvement over baseline methods such as BLAST, in particular for predicting cellular locations. Availability and implementation: Web server: http://deepgo.bio2vec.net, Source code: https://github.com/bio-ontology-research-group/deepgo. Contact: robert.hoehndorf@kaust.edu.sa. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028933 TI - Novel method for intraoperative assessment of cerebral autoregulation by paced breathing. AB - Background: Cerebral autoregulation (CA) is the mechanism that maintains constancy of cerebral blood flow (CBF) despite variations in blood pressure (BP). Patients with attenuated CA have been shown to have an increased incidence of peri-operative stroke. Studies of CA in anaesthetized subjects are rare, because a simple and non-invasive method to quantify the integrity of CA is not available. In this study, we set out to improve non-invasive quantification of CA during surgery. For this purpose, we introduce a novel method to amplify spontaneous BP fluctuations during surgery by imposing mechanical positive pressure ventilation at three different frequencies and quantify CA from the resulting BP oscillations. Methods: Fourteen patients undergoing sevoflurane anaesthesia were included in the study. Continuous non-invasive BP and transcranial Doppler-derived CBF velocity (CBF V ) were obtained before surgery during 3 min of paced breathing at 6, 10, and 15 bpm and during surgery from mechanical positive pressure ventilation at identical frequencies. Data were analysed using frequency domain analysis to obtain CBF V -to-BP phase lead as a continuous measure of CA efficacy. Group averages were calculated. Values are means ( sd ), and P <0.05 was used to indicate statistical significance. Results: Preoperative vs intraoperative CBF V -to-BP phase lead was 43 (9) vs 45 (8) degrees , 25 (8) vs 24 (10) degrees , and 4 (6) vs -2 (12) degrees during 6, 10, and 15 bpm, respectively (all P =NS). Conclusions: During surgery, cerebral autoregulation indices were similar to values determined before surgery. This indicates that CA can be quantified reliably and non-invasively using this novel method and confirms earlier evidence that CA is unaffected by sevoflurane anaesthesia. Clinical trial registration: NCT03071432. PMID- 29028934 TI - DeepLoc: prediction of protein subcellular localization using deep learning. PMID- 29028936 TI - Lost in translation? Comparing the effectiveness of electronic-based and paper based cognitive aids. PMID- 29028937 TI - Abnormal Structural Brain Connectome in Individuals with Preclinical Alzheimer's Disease. AB - Alzheimer's disease has a long preclinical phase during which amyloid pathology and neurodegeneration accumulate in the brain without producing overt cognitive deficits. It is currently unclear whether these early disease stages are associated with a progressive disruption in the communication between brain regions that subsequently leads to cognitive decline and dementia. In this study we assessed the organization of structural networks in cognitively normal (CN) individuals harboring amyloid pathology (A+N-), neurodegeneration (A-N+), or both (A+N+) from the prospective and longitudinal Swedish BioFINDER study. We combined graph theory with diffusion tensor imaging to investigate integration, segregation, and centrality measures in the brain connectome in the previous groups. At baseline, our findings revealed a disrupted network topology characterized by longer paths, lower efficiency, increased clustering and modularity in CN A-N+ and CN A+N+, but not in CN A+N-. After 2 years, CN A+N+ showed significant abnormalities in all global network measures, whereas CN A-N+ only showed abnormalities in the global efficiency. Network connectivity and organization were associated with memory in CN A+N+ individuals. Altogether, our findings suggest that amyloid pathology is not sufficient to disrupt structural network topology, whereas neurodegeneration is. PMID- 29028935 TI - Latent-Profile Analysis Reveals Behavioral and Brain Correlates of Dopamine Cognition Associations. AB - Evidence suggests that associations between the neurotransmitter dopamine and cognition are nonmonotonic and open to modulation by various other factors. The functional implications of a given level of dopamine may therefore differ from person to person. By applying latent-profile analysis to a large (n = 181) sample of adults aged 64-68 years, we probabilistically identified 3 subgroups that explain the multivariate associations between dopamine D2/3R availability (probed with 11C-raclopride-PET, in cortical, striatal, and hippocampal regions) and cognitive performance (episodic memory, working memory, and perceptual speed). Generally, greater receptor availability was associated with better cognitive performance. However, we discovered a subgroup of individuals for which high availability, particularly in striatum, was associated with poor performance, especially for working memory. Relative to the rest of the sample, this subgroup also had lower education, higher body-mass index, and lower resting-state connectivity between caudate nucleus and dorsolateral prefrontal cortex. We conclude that a smaller subset of individuals induces a multivariate non-linear association between dopamine D2/3R availability and cognitive performance in this group of older adults, and discuss potential reasons for these differences that await further empirical scrutiny. PMID- 29028939 TI - Serotonin 2A Receptor Signaling Underlies LSD-induced Alteration of the Neural Response to Dynamic Changes in Music. AB - Classic psychedelic drugs (serotonin 2A, or 5HT2A, receptor agonists) have notable effects on music listening. In the current report, blood oxygen level dependent (BOLD) signal was collected during music listening in 25 healthy adults after administration of placebo, lysergic acid diethylamide (LSD), and LSD pretreated with the 5HT2A antagonist ketanserin, to investigate the role of 5HT2A receptor signaling in the neural response to the time-varying tonal structure of music. Tonality-tracking analysis of BOLD data revealed that 5HT2A receptor signaling alters the neural response to music in brain regions supporting basic and higher-level musical and auditory processing, and areas involved in memory, emotion, and self-referential processing. This suggests a critical role of 5HT2A receptor signaling in supporting the neural tracking of dynamic tonal structure in music, as well as in supporting the associated increases in emotionality, connectedness, and meaningfulness in response to music that are commonly observed after the administration of LSD and other psychedelics. Together, these findings inform the neuropsychopharmacology of music perception and cognition, meaningful music listening experiences, and altered perception of music during psychedelic experiences. PMID- 29028938 TI - Impact of the US Maternal Tetanus, Diphtheria, and Acellular Pertussis Vaccination Program on Preventing Pertussis in Infants <2 Months of Age: A Case Control Evaluation. AB - Background: Infants aged <1 year are at highest risk for pertussis-related morbidity and mortality. In 2012, Tdap (tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis) vaccine was recommended for women during each pregnancy to protect infants in the first months of life; data on effectiveness of this strategy are currently limited. Methods: We conducted a case-control evaluation among pertussis cases <2 months old with cough onset between 1 January 2011 and 31 December 2014 from 6 US Emerging Infection Program Network states. Controls were hospital-matched and selected by birth certificate. Mothers were interviewed to collect information on demographics, household characteristics, and healthcare providers. Provider-verified immunization history was obtained on mothers and infants. Mothers were considered vaccinated during pregnancy if Tdap was received >=14 days before delivery; trimester was calculated using Tdap date, infant's date of birth, and gestational age. Odds ratios were calculated using multivariable conditional logistic regression; vaccine effectiveness (VE) was estimated as (1 - odds ratio) * 100%. Results: A total of 240 cases and 535 controls were included; 17 (7.1%) case mothers and 90 (16.8%) control mothers received Tdap during the third trimester of pregnancy. The multivariable VE estimate for Tdap administered during the third trimester of pregnancy was 77.7% (95% confidence interval [CI], 48.3%-90.4%); VE increased to 90.5% (95% CI, 65.2% 97.4%) against hospitalized cases. Conclusions: Vaccination during pregnancy is an effective way to protect infants during the early months of life. With a continuing resurgence in pertussis, efforts should focus on maximizing Tdap uptake among pregnant women. PMID- 29028940 TI - Optogenetic Activation of the Sensorimotor Cortex Reveals "Local Inhibitory and Global Excitatory" Inputs to the Basal Ganglia. AB - To understand how information from different cortical areas is integrated and processed through the cortico-basal ganglia pathways, we used optogenetics to systematically stimulate the sensorimotor cortex and examined basal ganglia activity. We utilized Thy1-ChR2-YFP transgenic mice, in which channelrhodopsin 2 is robustly expressed in layer V pyramidal neurons. We applied light spots to the sensorimotor cortex in a grid pattern and examined neuronal responses in the globus pallidus (GP) and entopeduncular nucleus (EPN), which are the relay and output nuclei of the basal ganglia, respectively. Light stimulation typically induced a triphasic response composed of early excitation, inhibition, and late excitation in GP/EPN neurons. Other response patterns lacking 1 or 2 of the components were also observed. The distribution of the cortical sites whose stimulation induced a triphasic response was confined, whereas stimulation of the large surrounding areas induced early and late excitation without inhibition. Our results suggest that cortical inputs to the GP/EPN are organized in a "local inhibitory and global excitatory" manner. Such organization seems to be the neuronal basis for information processing through the cortico-basal ganglia pathways, that is, releasing and terminating necessary information at an appropriate timing, while simultaneously suppressing other unnecessary information. PMID- 29028941 TI - Dysregulation of Cortical Neuron DNA Methylation Profile in Autism Spectrum Disorder. AB - Autism Spectrum Disorder (ASD) is a complex neuropsychiatric syndrome whose etiology includes genetic and environmental components. Since epigenetic marks are sensitive to environmental insult, they may be involved in the development of ASD. Initial brain studies have suggested a dysregulation of epigenetic marks in ASD. However, due to cellular heterogeneity in the brain, these studies have not determined if there is a true change in the neuronal epigenetic signature. Here, we report a genome-wide methylation study on fluorescence-activated cell sorting sorted neuronal nuclei from the frontal cortex of 16 male ASD and 15 male control subjects. Using the 450 K BeadArray, we identified 58 differentially methylated regions (DMRs) that included loci associated to GABAergic system genes, particularly ABAT and GABBR1, and brain-specific MicroRNAs. Selected DMRs were validated by targeted Next Generation Bisulfite Sequencing. Weighted gene correlation network analysis detected 3 co-methylation modules which are significantly correlated to ASD that were enriched for genomic regions underlying neuronal, GABAergic, and immune system genes. Finally, we determined an overlap of the 58 ASD-related DMRs with neurodevelopment associated DMRs. This investigation identifies alterations in the DNA methylation pattern in ASD cortical neurons, providing further evidence that epigenetic alterations in disorder-relevant tissues may be involved in the biology of ASD. PMID- 29028943 TI - A joint model for mixed and truncated longitudinal data and survival data, with application to HIV vaccine studies. AB - In HIV vaccine studies, a major research objective is to identify immune response biomarkers measured longitudinally that may be associated with risk of HIV infection. This objective can be assessed via joint modeling of longitudinal and survival data. Joint models for HIV vaccine data are complicated by the following issues: (i) left truncations of some longitudinal data due to lower limits of quantification; (ii) mixed types of longitudinal variables; (iii) measurement errors and missing values in longitudinal measurements; (iv) computational challenges associated with likelihood inference. In this article, we propose a joint model of complex longitudinal and survival data and a computationally efficient method for approximate likelihood inference to address the foregoing issues simultaneously. In particular, our model does not make unverifiable distributional assumptions for truncated values, which is different from methods commonly used in the literature. The parameters are estimated based on the h likelihood method, which is computationally efficient and offers approximate likelihood inference. Moreover, we propose a new approach to estimate the standard errors of the h-likelihood based parameter estimates by using an adaptive Gauss-Hermite method. Simulation studies show that our methods perform well and are computationally efficient. A comprehensive data analysis is also presented. PMID- 29028942 TI - Association of high-evidence gastric cancer susceptibility loci and somatic gene expression levels with survival. AB - Eleven high-evidence single-nucleotide polymorphisms (SNPs) at nine loci for gastric cancer (GC) risk were reported, but their associations with survival remain unknown. In this study, we examined associations between SNP and GC survival by anatomic location and histology among 1147 incident cases from the Shanxi Upper Gastrointestinal Genetics Project. We further examined whether SNPs were expression quantitative trait loci in normal and tumor gastric tissues, and whether tumor versus normal somatic mRNA differences in 126 cases were associated with survival. No SNPs were associated with GC survival overall. However, subtype specific associations were observed for gastric cardia adenocarcinomas at MUC1/TRIM46/1q22 rs2070803 [HRAA versus GA+GG = 2.16; 95% confidence interval (CI) = 1.24-3.78; P = 0.0068] and LTA/TNF/6p21.33 rs1799724 (HRTT+CT versus CC = 1.30; 95% CI = 1.07-1.57; P = 0.0077), and for diffuse-type GC at PSCA/8q24.3 rs2294008 (HRTT versus CT+CC = 1.99; 95% CI = 1.33-2.97; P = 7.8E-04). Rs2294008T was a cis-expression quantitative trait loci for PSCA, upregulating mRNA in normal gastric (beta = 0.60; P = 5.7E-21) and GC (beta = 0.30; P = 0.0089) tissues. Cases in the highest quartile (the smallest downregulation of tumor PSCA) had shortest survival than cases with the most downregulated PSCA (median survival of 0.47 years in the highest quartile versus 3.73 years in the lowest quartile; hazard ratio = 9.70; 95% CI = 2.46-38.4; P = 0.0012). Less striking effects for mRNA levels were observed for MTX1 at 1q22 in gastric cardia adenocarcinoma and for JRK at 8q24.3 in diffuse GC. Our results suggest three high-evidence GC risk loci have prognostic importance in GC subtypes. Future studies in well-characterized independent populations are warranted to validate our findings and further investigate the clinical utility of these variants in predicting GC prognosis. PMID- 29028946 TI - Mouse Cntnap2 and Human CNTNAP2 ASD Alleles Cell Autonomously Regulate PV+ Cortical Interneurons. AB - Human mutations in CNTNAP2 are associated with an array of neuropsychiatric and neurological syndromes, including speech and language disorders, epilepsy, and autism spectrum disorder (ASD). We examined Cntnap2's expression and function in GABAergic cortical interneurons (CINs), where its RNA is present at highest levels in chandelier neurons, PV+ neurons and VIP+ neurons. In vivo functions were studied using both constitutive Cntnap2 null mice and a transplantation assay, the latter to assess cell autonomous phenotypes of medial ganglionic eminence (MGE)-derived CINs. We found that Cntnap2 constitutive null mutants had normal numbers of MGE-derived CINs, but had reduced PV+ CINs. Transplantation assays showed that Cntnap2 cell autonomously regulated the physiology of parvalbumin (PV)+, fast-spiking CINs; no phenotypes were observed in somatostatin+, regular spiking, CINs. We also tested the effects of 4 human CNTNAP2 ASD missense mutations in vivo, and found that they impaired PV+ CIN development. Together, these data reveal that reduced CNTNAP2 function impairs PV+ CINs, a cell type with important roles in regulating cortical circuits. PMID- 29028944 TI - Identification and replication of the interplay of four genetic high-risk variants for urinary bladder cancer. AB - Little is known whether genetic variants identified in genome-wide association studies interact to increase bladder cancer risk. Recently, we identified two- and three-variant combinations associated with a particular increase of bladder cancer risk in a urinary bladder cancer case-control series (Leibniz Research Centre for Working Environment and Human Factors at TU Dortmund (IfADo), 1501 cases, 1565 controls). In an independent case-control series (Nijmegen Bladder Cancer Study, NBCS, 1468 cases, 1720 controls) we confirmed these two- and three variant combinations. Pooled analysis of the two studies as discovery group (IfADo-NBCS) resulted in sufficient statistical power to test up to four-variant combinations by a logistic regression approach. The New England and Spanish Bladder Cancer Studies (2080 cases and 2167 controls) were used as a replication series. Twelve previously identified risk variants were considered. The strongest four-variant combination was obtained in never smokers. The combination of rs1014971[AA] near apolipoprotein B mRNA editing enzyme, catalytic polypeptide like 3A (APOBEC3A) and chromobox homolog 6 (CBX6), solute carrier family 1s4 (urea transporter), member 1 (Kidd blood group) (SLC14A1) exon single nucleotide polymorphism (SNP) rs1058396[AG, GG], UDP glucuronosyltransferase 1 family, polypeptide A complex locus (UGT1A) intron SNP rs11892031[AA] and rs8102137[CC, CT] near cyclin E1 (CCNE1) resulted in an unadjusted odds ratio (OR) of 2.59 (95% CI = 1.93-3.47; P = 1.87 * 10-10), while the individual variant ORs ranged only between 1.11 and 1.30. The combination replicated in the New England and Spanish Bladder Cancer Studies (ORunadjusted = 1.60, 95% CI = 1.10-2.33; P = 0.013). The four-variant combination is relatively frequent, with 25% in never smoking cases and 11% in never smoking controls (total study group: 19% cases, 14% controls). In conclusion, we show that four high-risk variants can statistically interact to confer increased bladder cancer risk particularly in never smokers. PMID- 29028945 TI - Sphingosine Kinase 1 expression in peritoneal macrophages is required for colon carcinogenesis. AB - Accumulating evidence suggests that the sphingosine kinase 1 (SphK1)/sphingosine 1-phosphate (S1P) pathway plays a pivotal role in colon carcinogenesis. Our previous studies indicate that the SphK1/S1P pathway mediates colon carcinogenesis at least by regulating cyclooxygenase 2 (COX-2) expression and prostaglandin E2 (PGE2) production. However, the mechanisms by which this pathway regulates colon carcinogenesis are still unclear. First, we show that SphK1 deficient mice significantly attenuated azoxymethane (AOM)-induced colon carcinogenesis as measured by colon tumor incidence, multiplicity, and volume. We found that AOM activates peritoneal macrophages to induce SphK1, COX-2, and tumor necrosis factor (TNF)-alpha expression in WT mice. Interestingly, SphK1 knockout (KO) mice revealed significant reduction of COX-2 and TNF-alpha expression from AOM-activated peritoneal macrophages, suggesting that SphK1 regulates COX-2 and TNF-alpha expression in peritoneal macrophages. We found that inoculation of WT peritoneal macrophages restored the carcinogenic effect of AOM in Sphk1 KO mice as measured by aberrant crypt foci (ACF) formation, preneoplastic lesions of colon cancer. In addition, downregulation of SphK1 only in peritoneal macrophage by short hairpin RNA (shRNA) reduced the number of ACF per colon induced by AOM. Intraperitoneal injection of sphingolipids demonstrates that S1P enhanced AOM induced ACF formation, while ceramide inhibited. Finally, we show that SphK inhibitor SKI-II significantly reduced the number of ACF per colon. These results suggest that SphK1 expression plays a pivotal role in the early stages of colon carcinogenesis through regulating COX-2 and TNF-alpha expression from activated peritoneal macrophages. PMID- 29028948 TI - Volumes of the spinal canal and caudal space in children zero to three years of age assessed by magnetic resonance imaging: implications for volume dosage of caudal blockade. AB - Background: The primary aim of this study was to objectively assess the different spinal and caudal volumes that are of interest for caudal block volume dosing. Methods: Three directly assessed (volume of spinal canal/caudal space, volume of the dural sac and volume of spinal cord) and two derived volumes (volume of the epidural space and cerebrospinal fluid volume) were determined from magnetic resonance images (MRI) in 20 children (zero - three yr of age). The assessed volumes were correlated to age, height and weight. Furthermore, the volumes of the epidural space from caudal canal to three different clinically relevant target levels (L 1, Th 10 and Th 6) and the epidural volume of each individual spinal segment at the caudal, lumbar and thoracic levels were calculated. Results: All volumes correlated in a linear manner to length and weight (R2 0.614 - 0.867) whereas a curvilinear correlation was associated with best curve fit for age (R2 0.696 - 0.883). The median volumes of the epidural space from caudal canal to L 1, Th 10 and Th 6 were 1.30 ml kg-1 (95%CI 1.08-1.51), 1.57 ml kg-1 (95%CI 1.29-1.81) and 1.78 ml kg-1 (95%CI 1.52-2.08), respectively. The median volumes of the epidural space per vertebral segment were Thoracic: 0.60 ml (95%CI 0.38-0.75); Lumbar: 1.18 ml (95%CI 0.94-1.43) and Caudal: 0.85 ml (95%CI 0.56 1.18). Conclusions: The spinal volumes of interest show a linear correlation to height and weight whereas a curvilinear correlation was found for age. The volume of the epidural space per segment was found to be significantly higher at the lumbar level compared with the caudal and thoracic levels. PMID- 29028947 TI - Dlx1 and Dlx2 Promote Interneuron GABA Synthesis, Synaptogenesis, and Dendritogenesis. AB - The postnatal functions of the Dlx1&2 transcription factors in cortical interneurons (CINs) are unknown. Here, using conditional Dlx1, Dlx2, and Dlx1&2 knockouts (CKOs), we defined their roles in specific CINs. The CKOs had dendritic, synaptic, and survival defects, affecting even PV+ CINs. We provide evidence that DLX2 directly drives Gad1, Gad2, and Vgat expression, and show that mutants had reduced mIPSC amplitude. In addition, the mutants formed fewer GABAergic synapses on excitatory neurons and had reduced mIPSC frequency. Furthermore, Dlx1/2 CKO had hypoplastic dendrites, fewer excitatory synapses, and reduced excitatory input. We provide evidence that some of these phenotypes were due to reduced expression of GRIN2B (a subunit of the NMDA receptor), a high confidence Autism gene. Thus, Dlx1&2 coordinate key components of CIN postnatal development by promoting their excitability, inhibitory output, and survival. PMID- 29028949 TI - Pyramidal Cell Subtypes and Their Synaptic Connections in Layer 5 of Rat Frontal Cortex. AB - The frontal cortical areas make a coordinated response that generates appropriate behavior commands, using individual local circuits with corticostriatal and corticocortical connections in longer time scales than sensory areas. In secondary motor cortex (M2), situated between the prefrontal and primary motor areas, major subtypes of layer 5 corticostriatal cells are crossed corticostriatal (CCS) cells innervating both sides of striatum, and corticopontine (CPn) cells projecting to the ipsilateral striatum and pontine nuclei. CCS cells innervate CPn cells unidirectionally: the former are therefore hierarchically higher than the latter among L5 corticostriatal cells. CCS cells project directly to both frontal and nonfrontal areas. On the other hand, CPn cells innervate the thalamus and layer 1a of frontal areas, where thalamic fibers relaying basal ganglia outputs are distributed. Thus, CCS cells can make activities of frontal areas in concert with those of nonfrontal area using corticocortical loops, whereas CPn cells are more involved in closed corticostriatal loops than CCS cells. Since reciprocal connections between CPn cells with facilitatory synapses may be related to persistent activity, CPn cells play a key role of longer time constant processes in corticostriatal as well as in corticocortical loops between the frontal areas. PMID- 29028951 TI - Big data, small airways, big problems. PMID- 29028950 TI - Epidemiology and Relative Severity of Influenza Subtypes in Singapore in the Post Pandemic Period from 2009 to 2010. AB - Background: After 2009, pandemic influenza A(H1N1) [A(H1N1)pdm09] cocirculated with A(H3N2) and B in Singapore. Methods: A cohort of 760 participants contributed demographic data and up to 4 blood samples each from October 2009 to September 2010. We compared epidemiology of the 3 subtypes and investigated evidence for heterotypic immunity through multivariable logistic regression using a generalized estimating equation. To examine age-related differences in severity between subtypes, we used LOESS (locally weighted smoothing) plots of hospitalization to infection ratios and explored birth cohort effects referencing the pandemic years (1957; 1968). Results: Having more household members aged 5-19 years and frequent public transport use increased risk of infection, while preexisting antibodies against the same subtype (odds ratio [OR], 0.61; P = .002) and previous influenza infection against heterotypic infections (OR, 0.32; P = .045) were protective. A(H1N1)pdm09 severity peaked in those born around 1957, while A(H3N2) severity was least in the youngest individuals and increased until it surpassed A(H1N1)pdm09 in those born in 1952 or earlier. Further analysis showed that severity of A(H1N1)pdm09 was less than that for A(H3N2) in those born in 1956 or earlier (P = .021) and vice versa for those born in 1968 or later (P < .001), with no difference in those born between 1957 and 1967 (P = .632). Conclusions: Our findings suggest that childhood exposures had long-term impact on immune responses consistent with the theory of antigenic sin. This, plus observations on short-term cross-protection, have implications for vaccination and influenza epidemic and pandemic mitigation strategies. PMID- 29028952 TI - The efficacy of GlideScope(r) videolaryngoscopy compared with direct laryngoscopy in children who are difficult to intubate: an analysis from the paediatric difficult intubation registry. AB - Background: We analysed data from the Paediatric Difficult Intubation Registry examining the use of direct laryngoscopy and GlideScope(r) videolaryngoscopy. Methods: Data collected by a multicentre, paediatric difficult intubation registry from 1295 patients were analysed. Rates of success and complications between direct laryngoscopy and GlideScope videolaryngoscopy were analysed. Results: Initial (464/877 = 53% vs 33/828 = 4%, Z-test = 22.2, P < 0.001) and eventual (720/877 = 82% vs. 174/828 = 21%, Z-test = 25.2, P < 0.001) success rates for GlideScope were significantly higher than direct laryngoscopy. Children weighing <10 kg had lower success rates with the GlideScope than the group as a whole. There were no differences in complication rates per attempt between direct laryngoscopy and GlideScope. The direct laryngoscopy group had more complications associated with the greater number of attempts needed to intubate. There were no increased risks of hypoxia or trauma with GlideScope use. Each additional attempt at intubation with either device resulted in a two-fold increase in complications (odds ratio: 2.0, 95% confidence interval: 1.5-2.5, P < 0.001). Conclusions: During difficult tracheal intubation in children, direct laryngoscopy is an overly used technique with a low chance of success. GlideScope use was associated with a higher chance of success with no increased risk of complications. GlideScope use in children with difficult tracheal intubation has a lower success rate than in adults with difficult tracheal intubation. Children weighing less than 10 kilograms had lower success rates with either device. Attempts should be minimized with either device to decrease complications. PMID- 29028953 TI - Overutilization of Antibiotics in Children With Diarrhea: First Do No Harm. PMID- 29028955 TI - Gamma-Band Oscillations Preferential for Nociception can be Recorded in the Human Insula. AB - Transient nociceptive stimuli elicit robust phase-locked local field potentials (LFPs) in the human insula. However, these responses are not preferential for nociception, as they are also elicited by transient non-nociceptive vibrotactile, auditory, and visual stimuli. Here, we investigated whether another feature of insular activity, namely gamma-band oscillations (GBOs), is preferentially observed in response to nociceptive stimuli. Although nociception-evoked GBOs have never been explored in the insula, previous scalp electroencephalography and magnetoencephalography studies suggest that nociceptive stimuli elicit GBOs in other areas such as the primary somatosensory and prefrontal cortices, and that this activity could be closely related to pain perception. Furthermore, tracing studies showed that the insula is a primary target of spinothalamic input. Using depth electrodes implanted in 9 patients investigated for epilepsy, we acquired insular responses to brief thermonociceptive stimuli and similarly arousing non nociceptive vibrotactile, auditory, and visual stimuli (59 insular sites). As compared with non-nociceptive stimuli, nociceptive stimuli elicited a markedly stronger enhancement of GBOs (150-300 ms poststimulus) at all insular sites, suggesting that this feature of insular activity is preferential for thermonociception. Although this activity was also present in temporal and frontal regions, its magnitude was significantly greater in the insula as compared with these other regions. PMID- 29028956 TI - Age Differences in the Neural Mechanisms of Intertemporal Choice Under Subjective Decision Conflict. AB - Older decision-makers may capitalize on their greater experiences in financial decisions and by this offset decline in cognitive abilities. However, this pattern of results should reverse in situations that place high demands on cognitive control functions. In this study, we investigated how decision conflict affects the neural mechanisms of intertemporal decision-making in younger and older adults. To individually adjust the level of decision conflict we determined the indifference point (IDP) in intertemporal decision-making for each participant. During functional magnetic resonance imaging, participants performed choice options close to their IDP (high conflict) or far away from the IDP (low conflict). In younger adults, decision conflict leads to reduced delay discounting and lower discount rates are associated with higher working memory (WM) capacity. In older adults, high decision conflict is associated with enhanced discounting, hypoactivation in the ventral striatum as well diminished ventral striatal representations of differences in subjective values. Taken together, our results show that under enhanced decision conflict, younger adults engage in a more reflective decision mode that reflects individual differences in WM capacity. In contrast, older adults get more present-oriented under high demands on cognitive control and this decision bias is associated with changes in striatal value signaling. PMID- 29028954 TI - 1-Benzyl-indole-3-carbinol is a highly potent new small molecule inhibitor of Wnt/beta-catenin signaling in melanoma cells that coordinately inhibits cell proliferation and disrupts expression of microphthalmia-associated transcription factor isoform-M. AB - 1-Benzyl-indole-3-carbinol (1-benzyl-I3C), a synthetic analogue of the crucifer derived natural phytochemical I3C, displayed significantly wider sensitivity and anti-proliferative potency in melanoma cells than the natural compound. Unlike I3C, which targets mainly oncogenic BRAF-expressing cells, 1-benzyl-I3C effectively inhibited proliferation of melanoma cells with a more extensive range of mutational profiles, including those expressing wild-type BRAF. In both cultured melanoma cell lines and in vivo in melanoma cell-derived tumor xenografts, 1-benzyl-I3C disrupted canonical Wnt/beta-catenin signaling that resulted in the downregulation of beta-catenin protein levels with a concomitant increase in levels of the beta-catenin destruction complex components such as glycogen synthase kinase-3beta (GSK-3beta) and Axin. Concurrent with the inhibition of Wnt/beta-catenin signaling, 1-benzyl-I3C strongly downregulated expression of the melanoma master regulator, microphthalmia-associated transcription factor isoform-M (MITF-M) by inhibiting promoter activity through the consensus lymphoid enhancer factor-1 (LEF-1)/T-cell transcription factor (TCF) DNA-binding site. Chromatin immunoprecipitation revealed that 1-benzyl-I3C downregulated interactions of endogenous LEF-1 with the MITF-M promoter. 1-Benzyl I3C ablated Wnt-activated LEF-1-dependent reporter gene activity in a TOP FLASH assay that was rescued by expression of a constitutively active form of the Wnt co-receptor low-density lipoprotein receptor-related protein (LRP6), indicating that 1-benzyl-I3C disrupts Wnt/beta-catenin signaling at or upstream of LRP6. In oncogenic BRAF-expressing melanoma cells, combinations of 1-benzyl-I3C and Vemurafenib, a clinically employed BRAF inhibitor, showed strong anti proliferative effects. Taken together, our observations demonstrate that 1-benzyl I3C represents a new and highly potent indolecarbinol-based small molecule inhibitor of Wnt/beta-catenin signaling that has intriguing translational potential, alone or in combination with other anti-cancer agents, to treat human melanoma. PMID- 29028957 TI - Long-term Mortality and Disability in Cryptococcal Meningitis: A Systematic Literature Review. AB - Cryptococcal meningitis (CM) is the primary cause of meningitis in adults with human immunodeficiency virus (HIV) infection and an emerging disease in HIV seronegative individuals. No literature review has studied the long-term outcome of CM. We performed a systematic review on the long-term (>=3-month) impact of CM (Cryptococcus neoformans and Cryptococcus gattii) on mortality and disability in HIV-infected and non-HIV-infected adults. Although the quality of current evidence is limited, the long-term impact of CM on survival and disability seems to be high. One-year mortality ranged from 13% in an Australian non-HIV-infected C. gattii-infected cohort to 78% in a Malawian HIV-infected cohort treated with fluconazole monotherapy. One-year impairment proportions among survivors ranged from 19% in an Australian C. gattii cohort to >70% in a Taiwanese non-HIV- and HIV-infected cohorts. Ongoing early therapeutic interventions, early detection of impairments and access to rehabilitation services may significantly improve patients' survival and quality of life. PMID- 29028959 TI - Effectiveness of Measles Vaccination and Immune Globulin Post-Exposure Prophylaxis in an Outbreak Setting-New York City, 2013. AB - Background: Measles, mumps, and rubella vaccine (MMR) or immune globulin (IG) are routinely used for measles post-exposure prophylaxis (PEP). However, current literature on the effectiveness of measles PEP is limited and variable. Here, we examined the effectiveness of MMR and IG PEP among children exposed to measles during an outbreak in New York City (NYC) in 2013. Methods: Contacts were identified by the NYC Department of Health and Mental Hygiene between 13 March 2013 and 30 June 2013. Immunity to measles and receipt of PEP was determined for contacts. PEP effectiveness [(1 - relative risk of developing measles) * 100] was calculated for MMR, IG, and any PEP (MMR or IG) for nonimmune contacts aged <19 years. Results: A total of 3409 contacts were identified, of which 208 (6.1%), 274 (8.0%), and 318 (9.3%) met the inclusion criteria for analysis of MMR, IG, and any PEP effectiveness, respectively. Of the contacts included, 44 received MMR PEP and 77 received IG PEP. Effectiveness of MMR PEP was 83.4% (95% confidence interval [CI], 34.4%, 95.8%). No contact who received IG PEP developed measles; effectiveness of IG PEP was 100% (approximated 95% CI, 56.2%, 99.8%). Effectiveness of receiving any PEP (MMR or IG) was 92.9% (95% CI, 56.2%, 99.8%). Conclusions: Contacts who received PEP were less likely to develop disease. Our findings support current recommendations for administration of PEP following exposure to measles. These results highlight the importance of a rapid public health outbreak response to limit measles transmission following case identification. PMID- 29028958 TI - Development of Clinical Prediction Models for Surgery and Complications in Crohn's Disease. AB - Background and Aims: Crohn's disease-related complications account for a substantial proportion of inflammatory bowel disease-associated health care expenditure. Identifying patients at risk for complications may allow for targeted use of early therapeutic interventions to offset this natural course. We aimed to develop risk prediction models for Crohn's disease-related surgery and complications. Methods: Using data from the Randomised Evaluation of an Algorithm for Crohn's Disease cluster-randomised clinical Trial [REACT], which involved 1898 patients from 40 community practices, separate prediction models were derived and internally validated for predicting Crohn's disease-related surgery and disease-related complications [defined as the first disease-related surgery, hospitalisation, or complication within 24 months]. Model performance was assessed in terms of discrimination and calibration, decision curves, and net benefit analyses. Results: There were 130 [6.8%] disease-related surgeries and 504 [26.6%] complications during the 24-month follow-up period. Selected baseline predictors of surgery included age, gender, disease location, Harvey-Bradshaw Index [HBI] score, stool frequency, antimetabolite or 5-aminosalicylate use, and the presence of a fistula, abscess, or abdominal mass. Selected predictors of complications included those same factors for surgery, plus corticosteroid or anti-tumour necrosis factor use, but excluded 5-aminosalicylate use. Discrimination ability, as measured by validated c-statistics, was 0.70 and 0.62 for the surgery and complication models, respectively. Score charts and nomograms were developed to facilitate future risk score calculation. Conclusions: Separate risk prediction models for Crohn's disease-related surgery and complications were developed using clinical trial data involving community gastroenterology practices. These models could be used to guide Crohn's disease management. External validation is warranted. PMID- 29028961 TI - Towards unified quality verification of synthetic count data with countsimQC. AB - Summary: Statistical tools for biological data analysis are often evaluated using synthetic data, designed to mimic the features of a specific type of experimental data. The generalizability of such evaluations depends on how well the synthetic data reproduce the main characteristics of the experimental data, and we argue that an assessment of this similarity should accompany any synthetic dataset used for method evaluation. We describe countsimQC, which provides a straightforward way to generate a stand-alone report that shows the main characteristics of (e.g. RNA-seq) count data and can be provided alongside a publication as verification of the appropriateness of any utilized synthetic data. Availability and implementation: countsimQC is implemented as an R package (for R versions >= 3.4) and is available from https://github.com/csoneson/countsimQC under a GPL (>=2) license. Contact: charlotte.soneson@uzh.ch or mark.robinson@imls.uzh.ch. PMID- 29028963 TI - ZCCHC17 is a master regulator of synaptic gene expression in Alzheimer's disease. AB - Motivation: In an effort to better understand the molecular drivers of synaptic and neurophysiologic dysfunction in Alzheimer's disease (AD), we analyzed neuronal gene expression data from human AD brain tissue to identify master regulators of synaptic gene expression. Results: Master regulator analysis identifies ZCCHC17 as normally supporting the expression of a network of synaptic genes, and predicts that ZCCHC17 dysfunction in AD leads to lower expression of these genes. We demonstrate that ZCCHC17 is normally expressed in neurons and is reduced early in the course of AD pathology. We show that ZCCHC17 loss in rat neurons leads to lower expression of the majority of the predicted synaptic targets and that ZCCHC17 drives the expression of a similar gene network in humans and rats. These findings support a conserved function for ZCCHC17 between species and identify ZCCHC17 loss as an important early driver of lower synaptic gene expression in AD. Availability and implementation: Matlab and R scripts used in this paper are available at https://github.com/afteich/AD_ZCC. Contact: aft25@cumc.columbia.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028960 TI - Ovarian Follicular Theca Cell Recruitment, Differentiation, and Impact on Fertility: 2017 Update. AB - The major goal of this review is to summarize recent exciting findings that have been published within the past 10 years that, to our knowledge, have not been presented in detail in previous reviews and that may impact altered follicular development in polycystic ovarian syndrome (PCOS) and premature ovarian failure in women. Specifically, we will cover the following: (1) mouse models that have led to discovery of the derivation of two precursor populations of theca cells in the embryonic gonad; (2) the key roles of the oocyte-derived factor growth differentiation factor 9 on the hedgehog (HH) signaling pathway and theca cell functions; and (3) the impact of the HH pathway on both the specification of theca endocrine cells and theca fibroblast and smooth muscle cells in developing follicles. We will also discuss the following: (1) other signaling pathways that impact the differentiation of theca cells, not only luteinizing hormone but also insulinlike 3, bone morphogenic proteins, the circadian clock genes, androgens, and estrogens; and (2) theca-associated vascular, immune, and fibroblast cells, as well as the cytokines and matrix factors that play key roles in follicle growth. Lastly, we will integrate what is known about theca cells from mouse models, human-derived theca cell lines from patients who have PCOS and patients who do not have PCOS, and microarray analyses of human and bovine theca to understand what pathways and factors contribute to follicle growth as well as to the abnormal function of theca. PMID- 29028965 TI - Tuberculin Skin Test Conversions and Occupational Exposure Risk in US Healthcare Workers. AB - Background: Healthcare workers (HCWs) undergo occupational tuberculosis screening at regular intervals. However, the risk of contracting tuberculosis at the workplace in a setting with a low background tuberculosis incidence is unclear. We aimed to evaluate the risk of tuberculin skin test (TST) conversion and the risk of occupational tuberculosis infection among HCWs in such a setting. Methods: We conducted a retrospective cohort study of employees of a large tertiary medical center in the US Midwest who had undergone TST screening during the study period 1 January 1998 to 31 May 2014. Results: Among 40142 HCWs who received a TST, only 123 converted over 16.4 years. Only 9 (7%) of the converters had a suspected tuberculosis exposure at the workplace and none developed active tuberculosis. The majority of TST converters (66%) had a negative QuantiFERON-TB test at the time of the conversion. Conclusions: In one of the largest cohorts of HCWs in a low-tuberculosis-incidence setting, we demonstrated an extremely low risk of occupational tuberculosis exposure among TST converters and no resulting active tuberculosis cases. In this setting, the approach of testing HCWs at baseline and after tuberculosis exposure, rather than at regular intervals, should be considered. PMID- 29028962 TI - Clinical Features of Acute Flaccid Myelitis Temporally Associated With an Enterovirus D68 Outbreak: Results of a Nationwide Survey of Acute Flaccid Paralysis in Japan, August-December 2015. AB - Background: Acute flaccid myelitis (AFM) is an acute flaccid paralysis syndrome with spinal motor neuron involvement of unknown etiology. We investigated the characteristics and prognostic factors of AFM clusters coincident with an enterovirus D68 (EV-D68) outbreak in Japan during autumn 2015. Methods: An AFM case series study was conducted following a nationwide survey from August to December 2015. Radiographic and neurophysiologic data were subjected to centralized review, and virology studies were conducted for available specimens. Results: Fifty-nine AFM cases (58 definite, 1 probable) were identified, including 55 children and 4 adults (median age, 4.4 years). The AFM epidemic curve showed strong temporal correlation with EV-D68 detection from pathogen surveillance, but not with other pathogens. EV-D68 was detected in 9 patients: 5 in nasopharyngeal, 2 in stool, 1 in cerebrospinal fluid (adult case), and 1 in tracheal aspiration, nasopharyngeal, and serum samples (a pediatric case with preceding steroid usage). Cases exhibited heterogeneous paralysis patterns from 1 to 4-limb involvement, but all definite cases had longitudinal spinal gray matter lesions on magnetic resonance imaging (median, 20 spinal segments). Cerebrospinal fluid pleocytosis was observed in 50 of 59 cases (85%), and 8 of 29 (28%) were positive for antiganglioside antibodies, as frequently observed in Guillain-Barre syndrome. Fifty-two patients showed variable residual weakness at follow-up. Good prognostic factors included a pretreatment manual muscle strength test unit score >3, normal F-wave persistence, and EV-D68-negative status. Conclusions: EV-D68 may be one of the causative agents for AFM, while host susceptibility factors such as immune response could contribute to AFM development. PMID- 29028964 TI - The Cost-Effectiveness of Human Immunodeficiency Virus Testing and Treatment Engagement Initiatives in British Columbia, Canada: 2011-2013. AB - Background: Recognition of the secondary preventive benefits of antiretroviral therapy (ART) has mobilized global efforts to "seek, test, treat, and retain" people living with human immunodeficiency virus [HIV]/AIDS (PLHIV) in HIV care. We aimed to determine the cost-effectiveness of a set of HIV testing and treatment engagement interventions initiated in British Columbia, Canada, in 2011 2013. Methods: Using a previously validated dynamic HIV transmission model, linked individual-level health administrative data for PLHIV, and aggregate-level HIV testing data, we estimated the cost-effectiveness of primary care testing (hospital, emergency department [ED], outpatient), ART initiation, and ART retention initiatives vs a counterfactual scenario that approximated the status quo. HIV incidence, mortality, costs (in 2015$CDN), quality-adjusted life years (QALYs), and incremental cost-effectiveness ratios were estimated. Analyses were executed over 5- to 25-year time horizons from a government-payer perspective. Results: ED testing was the best value at $30216 per QALY gained and had the greatest impact on incidence and mortality among PLHIV, while ART initiation provided the greatest QALY gains. The ART retention initiative was not cost effective. Delivered in combination at the observed scale and sustained throughout the study period, we estimated a 12.8% reduction in cumulative HIV incidence and a 4.7% reduction in deaths among PLHIV at $55258 per QALY gained. Results were most sensitive to uncertainty in the number of undiagnosed PLHIV. Conclusions: HIV testing and ART initiation interventions were cost-effective, while the ART retention intervention was not. Developing strategies to reengage PLHIV lost to care is a priority moving forward. PMID- 29028967 TI - Response to 'The end of the dosage of 6 Thioguanine nucleotides? Not so sure...'. PMID- 29028966 TI - High Rates of Subsequent Asymptomatic Sexually Transmitted Infections and Risky Sexual Behavior in Patients Initially Presenting With Primary Human Immunodeficiency Virus-1 Infection. AB - Background: Knowledge of the risk factors of individuals with an asymptomatic sexually transmitted infection (STI) is essential for implementation of targeted STI screening strategies. Methods: Between June 2015 and January 2017, an STI screening was offered to all participants in the Zurich Primary human immunodeficiency virus (HIV)-1 Infection study. Patients were tested for gonorrhea, chlamydia, syphilis, and hepatitis C virus (HCV). Results: Of 214 participants, 174 (81%) were screened at least once. Most patients were men who have sex with men (MSM) (87.4%). Presenting with a primary HIV infection was associated with higher odds for later risky sexual behavior, as compared with presenting in the chronic phase (odds ratio [OR], 5.58; 95% confidence interval [CI], 3.68-8.8). In total, 79 STIs were detected, reflecting a high period prevalence of 33.3% (58 of 174 patients). Sixty-six percent of patients (52 of 79) were asymptomatic. Most common STIs were chlamydia (50.6%; 40 of 79 patients), gonorrhea (25.3%; 20 of 79), and syphilis (19%; 15 of 79). In a multivariable model, engaging in insertive (OR, 6.48; 95% CI, 1.14-36.76) or both insertive and receptive (4.61; 1.01-20.96) anal intercourse, STI symptoms (3.4; 1.68-6.89), and condomless sex (2.06; 1.14-3.74) were positively correlated with a positive screening result. The hazard of an incident STI increased with the presence of STI symptoms (hazard ratio, 3.03; 95% CI, 1.17-7.84) and any recent drug use (2.63; 1-6.9). Conclusions: A trimonthly STI screening including asymptomatic individuals should be considered in this population, particularly in MSM who report sexual risk behavior. Clinical Trial Registration: NCT 00537966. PMID- 29028968 TI - "Cleaved Lymphocytes" Could Be Induced by Pertussis Toxin Injection in Mice, and Are Actually Not Lymphocytes. PMID- 29028969 TI - Corrigendum: Correlation of defective mitotic checkpoint with aberrantly reduced expression of MAD2 protein in nasopharyngeal carcinoma cells. PMID- 29028971 TI - Infrequent Testing of Women for Rectal Chlamydia and Gonorrhea in the United States. AB - Background: Anal sex is a common sexual behavior among women that increases their risk of acquiring rectal infection with Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC). Methods: We estimated the frequency and positivity of rectal CT and GC tests for women aged 15-60 years performed by a large US commercial laboratory between November 2012 and September 2015. We also estimated the frequency and positivity of pharyngeal and genital specimens also performed on the same date. Among women with a positive CT or GC result, we estimated the frequency and positivity of recommended repeat testing within 12 months. Results: Of 5499 women who had rectal CT and GC tests, positivity was 10.8%. On the same date, approximately 80% also had genital CT tests, genital GC tests, and pharyngeal GC tests, while 40% had pharyngeal CT tests. Rectal CT or GC infection was associated with genital CT or GC infection, but 46.5% of rectal CT and GC infections would not have been identified with genital testing alone. Among women with a rectal CT or GC infection, only 20.0% had a recommended repeat rectal test. Of those who had a repeat test, 17.7% were positive. Conclusions: Testing women for rectal CT and GC was infrequent, but positive tests were often found in women with negative genital tests. Most women with positive rectal tests were not retested. Interventions are needed to increase extragenital CT and GC testing of at-risk women. PMID- 29028970 TI - Poor Obstetric and Infant Outcomes in Human Immunodeficiency Virus-Infected Pregnant Women With Tuberculosis in South Africa: The Tshepiso Study. AB - Background: Before the wide availability of antiretroviral therapy (ART), tuberculosis and human immunodeficiency virus (HIV) disease among pregnant women resulted in poor maternal and neonatal outcomes, including high rates of mother to-child transmission of both HIV and tuberculosis. We aimed to describe the impact of tuberculosis among HIV-infected mothers on obstetric and infant outcomes in a population with access to ART. Methods: In this prospective cohort study, we followed up HIV-infected pregnant women with or without tuberculosis disease from January 2011 through January 2014 in Soweto, South Africa. Two controls were enrolled for each case patient, matched by enrollment time, maternal age, gestational age, and planned delivery clinic and followed up for 12 months after delivery. Results: We recruited 80 case patients and 155 controls, resulting in 224 live-born infants. Infants of mothers with HIV infection and tuberculosis disease had a higher risk of low birth weight (20.8% vs 10.7%; P = .04), prolonged hospitalization at birth (51% vs 16%; P < .001), infant death (68 vs 7 deaths per 1000 births; P < .001), and tuberculosis disease (12% vs 0%; P < .001) despite appropriate maternal therapy and infant tuberculosis preventive therapy. HIV transmission was higher among these infants (4.1% vs 1.3%; P = .20), though this difference was not statistically significant. Obstetric outcomes in coinfected women were also poorer with higher risks of maternal hospitalization (25% vs 11%; P = .005) and preeclampsia (5.5% vs 0.7%; P = .03). Conclusions: Tuberculosis in HIV coinfected pregnant women remains a significant threat to the health of both mothers and infants. Improving tuberculosis prevention and early diagnosis among pregnant women is critical. PMID- 29028972 TI - The Challenge of Vaccine Policy-making With Imperfect Data. PMID- 29028974 TI - Temporal Dynamics of Human Frontal and Cingulate Neural Activity During Conflict and Cognitive Control. AB - Cognitive control refers to the ability to produce flexible, goal-oriented behavior in the face of changing task demands and conflicting response tendencies. A classic cognitive control experiment is the Stroop-color naming task, which requires participants to name the color in which a word is written while inhibiting the tendency to read the word. By comparing stimuli with conflicting word-color associations to congruent ones, control processes over response tendencies can be isolated. We assessed the spatial specificity and temporal dynamics in the theta and gamma bands for regions engaged in detecting and resolving conflict in a cohort of 13 patients using a combination of high resolution surface and depth recordings. We show that cognitive control manifests as a sustained increase in gamma band power, which correlates with response time. Conflict elicits a sustained gamma power increase but a transient theta power increase, specifically localized to the left cingulate sulcus and bilateral dorsolateral prefrontal cortex (DLPFC). Additionally, activity in DLPFC is affected by trial-by-trial modulation of cognitive control (the Gratton effect). Altogether, the sustained local neural activity in dorsolateral and medial regions is what determines the timing of the correct response. PMID- 29028975 TI - Comparative Responses of Rhagoletis zephyria and Rhagoletis pomonella (Diptera: Tephritidae) to Commercial and Experimental Sticky Traps and Odors in Washington State. AB - Rhagoletis zephyria Snow and Rhagoletis pomonella (Walsh) (Diptera: Tephritidae) are morphologically similar flies that attack white-colored snowberry fruit (Symphoricarpos spp.) and yellow/red or dark-colored apple/hawthorn fruit (Malus/Crataegus spp.), respectively. The two flies are caught together on traps in R. pomonella surveys in the western United States, increasing labor needed to process catches. Comparing responses of the two species with different traps could help identify best practices for reducing R. zephyria captures in these surveys and could contribute to understanding population divergence in Rhagoletis flies. In Washington State, United States, we found that R. zephyria responded most to yellow rectangles and more to white than red spheres (RSs) baited with ammonium carbonate (AC), whereas R. pomonella responded most to RSs with AC. Yellow plastic rectangles with AC were more effective in capturing R. zephyria than cardboard rectangles, as has been found for R. pomonella. R. zephyria did not respond to apple fruit volatiles associated with RSs that were attractive to R. pomonella. In contrast, R. zephyria responded more to yellow rectangles with snowberry than apple volatiles. Both species responded to AC. Our results suggest that RSs are better than yellow rectangles for surveying R. pomonella when snowberries are abundant. However, if discrimination from R. zephyria is paramount, RSs with apple volatiles should be used. Differences in the species' responses to traps appear related to odor/color cues of the flies' host fruit, while commonalties appear related to visual/olfactory stimuli associated with protein feeding, for which AC is a general attractant. PMID- 29028976 TI - Atherosclerotic plaque characterization: a need for a paradigm shift for prediction of risk. PMID- 29028973 TI - Safety and Immunogenicity of Newborn MVA85A Vaccination and Selective, Delayed Bacille Calmette-Guerin for Infants of Human Immunodeficiency Virus-Infected Mothers: A Phase 2 Randomized, Controlled Trial. AB - Background: Vaccination of human immunodeficiency virus (HIV)-infected infants with bacille Calmette-Guerin (BCG) is contraindicated. HIV-exposed newborns need a new tuberculosis vaccination strategy that protects against tuberculosis early in life and avoids the potential risk of BCG disease until after HIV infection has been excluded. Methods: This double-blind, randomized, controlled trial compared newborn MVA85A prime vaccination (1 * 108 PFU) vs Candin(r) control, followed by selective, deferred BCG vaccination at age 8 weeks for HIV-uninfected infants and 12 months follow-up for safety and immunogenicity. Results: A total of 248 HIV-exposed infants were enrolled. More frequent mild-moderate reactogenicity events were seen after newborn MVA85A vaccination. However, no significant difference was observed in the rate of severe or serious adverse events, HIV acquisition (n = 1 per arm), or incident tuberculosis disease (n = 5 MVA85A; n = 3 control) compared to the control arm. MVA85A vaccination induced modest but significantly higher Ag85A-specific interferon gamma (IFNgamma)+ CD4+ T cells compared to control at weeks 4 and 8 (P < .0001). BCG did not further boost this response in MVA85A vaccinees. The BCG-induced Ag85A-specific IFNgamma+ CD4+ T-cell response at weeks 16 and 52 was of similar magnitude in the control arm compared to the MVA85A arm at all time points. Proliferative capacity, functional profiles, and memory phenotype of BCG-specific CD4 responses were similar across study arms. Conclusions: MVA85A prime vaccination of HIV-exposed newborns was safe and induced an early modest antigen-specific immune response that did not interfere with, or enhance, immunogenicity of subsequent BCG vaccination. New protein-subunit and viral-vectored tuberculosis vaccine candidates should be tested in HIV-exposed newborns. Clinical Trials Registration: NCT01650389. PMID- 29028977 TI - Evolving Understanding of the Causes of Pneumonia in Adults, With Special Attention to the Role of Pneumococcus. AB - Before 1945, Streptococcus pneumoniae caused more than 90% of cases of pneumonia in adults. After 1950, the proportion of pneumonia caused by pneumococcus began to decline. Pneumococcus has continued to decline; at present, this organism is identified in fewer than fewer10%-15% of cases. This proportion is higher in Europe, a finding likely related to differences in vaccination practices and smoking. Gram-negative bacilli, Staphylococcus aureus, Chlamydia, Mycoplasma, and Legionella are each identified in 2%-5% of patients with pneumonia who require hospitalization. Viruses are found in 25% of patients, up to one-third of these have bacterial coinfection. Recent studies fail to identify a causative organism in more than 50% of cases, which remains the most important challenge to understanding lower respiratory infection. Our findings have important implications for antibiotic stewardship and should be considered as new policies for empiric pneumonia management are developed. PMID- 29028978 TI - Comparative Epidemiology and Outcomes of Human Immunodeficiency virus (HIV), Non HIV Non-transplant, and Solid Organ Transplant Associated Cryptococcosis: A Population-Based Study. AB - In this population-based study in the contemporary era in the United States, the proportion of human immunodeficiency virus (HIV)-negative patients with cryptococcosis approaches that in HIV-infected patients. Cryptococcosis is associated with higher mortality rates in HIV-negative patients (including organ transplant recipients). PMID- 29028979 TI - 2017 European Society of Cardiology (ESC) focused update on dual antiplatelet therapy in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS). PMID- 29028982 TI - TROVE: A User-friendly Tool for Visualizing and Analyzing Cancer Hallmarks in Signaling Networks. AB - Summary: Cancer hallmarks, a concept that seeks to explain the complexity of cancer initiation and development, provide a new perspective of studying cancer signaling which could lead to a greater understanding of this complex disease. However, to the best of our knowledge, there is currently a lack of tools that support such hallmark-based study of the cancer signaling network, thereby impeding the gain of knowledge in this area. We present TROVE, a user-friendly software that facilitates hallmark annotation, visualization and analysis in cancer signaling networks. In particular, TROVE facilitates hallmark analysis specific to particular cancer types. Availability and Implementation: Available under the Eclipse Public License from: https://sites.google.com/site/cosbyntu/softwares/trove and https://github.com/trove2017/Trove. Contact: hechua@ntu.edu.sg or assourav@ntu.edu.sg. PMID- 29028980 TI - Influenza Among Young Children in Bangladesh: Clinical Characteristics and Outcomes From a Randomized Clinical Trial. AB - Background: Influenza causes substantial morbidity in children worldwide, although influenza vaccine is seldom used in low-resource settings. More information on the clinical presentation of influenza and the efficacy of vaccine is needed to inform policy. Methods: In 2013 we conducted a randomized, placebo controlled clinical trial of live attenuated influenza vaccine (LAIV) in children aged 24-59 months in Bangladesh (N = 1761). If participants met prespecified specimen collection criteria, we collected nasopharyngeal washes for testing by singleplex reverse-transcription polymerase chain reaction (RT-PCR) for laboratory-confirmed influenza virus infection (LCI). A panel of RT-PCR assays was used to detect noninfluenza respiratory viruses. Primary efficacy results have been reported. In this analysis of prespecified and post hoc objectives from the trial, we compared signs and symptoms between LCI and non-LCI cases and estimated the efficacy of LAIV against moderate-to-severe LCI and other prespecified non-LCI clinical outcomes including all-cause pneumonia and acute otitis media. Results: The most common signs and symptoms of LCI were fever, cough, and runny nose. The combination of subjective fever and cough had a 63% sensitivity for LCI. The combination of measured fever, cough, and runny nose was most specific (90%) but had low sensitivity (32%) for LCI. The efficacy of LAIV against vaccine-strain moderate-to-severe LCI was 56.7% (95% confidence interval, 9.5%-79.2%). No statistically significant vaccine efficacy was found against the non-laboratory-confirmed clinical outcomes. Conclusions: It was not possible to distinguish LCI from noninfluenza viral infections on clinical evaluations alone in this population of Bangladeshi children. LAIV was efficacious against moderate to-severe LCI. Clinical Trials Registration: NCT01797029. PMID- 29028983 TI - Guidelines on informed consent in anaesthesia: unrealistic, unethical, untenable.... PMID- 29028981 TI - Tofacitinib in Patients with Ulcerative Colitis: Health-Related Quality of Life in Phase 3 Randomised Controlled Induction and Maintenance Studies. AB - Background and Aims: Tofacitinib is an oral, small molecule Janus kinase [JAK] inhibitor that is being investigated for ulcerative colitis [UC]. We evaluated health-related quality of life [HRQoL] in tofacitinib UC Phase 3 studies. Methods: Patients >= 18 years old in OCTAVE Induction 1 [N = 598] and 2 [N = 541] with moderately to severely active UC were randomised [1:4] to placebo or tofacitinib 10 mg twice daily [BID] for 8 weeks. Subsequently, OCTAVE Sustain re randomised [1:1:1] clinical responders [N = 593] from induction studies to placebo, tofacitinib 5 mg BID, or 10 mg BID, for 52 weeks. Inflammatory Bowel Disease Questionnaire [IBDQ] and SF-36v2(r) Health Survey [SF-36v2] assessed HRQoL. Results: In OCTAVE Induction 1 and 2, mean changes from baseline IBDQ were greater with tofacitinib 10 mg BID at Week 8 [28.9 and 31.5] versus placebo [15.4 and 17.2; p < 0.0001]; mean changes from baseline SF-36v2 Physical and Mental Component Summaries [PCS/MCS] were also greater with 10 mg BID [PCS: 6.8 and 6.8; MCS: 6.8 and 7.6] versus placebo [PCS: 2.5 and 4.6; MCS: 3.5 and 4.4; p < 0.01]. In OCTAVE Sustain atWeek 52, changes in IBDQ were maintained with tofacitinib 5 mg [-1.3] and 10 mg BID [0.6], and larger with placebo [-20.2; p < 0.0001]. Changes in SF-36v2 PCS/MCS were also maintained with 5 mg [PCS: 0.0; MCS: -1.0] and 10 mg BID [PCS: 0.3; MCS: 0.1] versus placebo [PCS: -5.2; MCS: -6.7; p < 0.0001] at Week 52 in OCTAVE Sustain. Conclusions: Tofacitinib 10 mg BID induction therapy significantly improved HRQoL versus placebo at Week 8. Improvements were maintained through 52 weeks' maintenance therapy with tofacitinib 5 mg and 10 mg BID. ClinicalTrials.gov registration numbers: NCT01465763, NCT01458951 and NCT01458574. PMID- 29028984 TI - A Bayesian framework for the inference of gene regulatory networks from time and pseudo-time series data. AB - Motivation: Molecular profiling techniques have evolved to single-cell assays, where dense molecular profiles are screened simultaneously for each cell in a population. High-throughput single-cell experiments from a heterogeneous population of cells can be experimentally and computationally sorted as a sequence of samples pseudo-temporally ordered samples. The analysis of these datasets, comprising a large number of samples, has the potential to uncover the dynamics of the underlying regulatory programmes. Results: We present a novel approach for modelling and inferring gene regulatory networks from high throughput time series and pseudo-temporally sorted single-cell data. Our method is based on a first-order autoregressive moving-average model and it infers the gene regulatory network within a variational Bayesian framework. We validate our method with synthetic data and we apply it to single cell qPCR and RNA-Seq data for mouse embryonic cells and hematopoietic cells in zebra fish. Availability and implementation: The method presented in this article is available at https://github.com/mscastillo/GRNVBEM. Contact: mscastillo@ugr.es. PMID- 29028985 TI - Impact of coronary lumen reconstruction on the estimation of endothelial shear stress: in vivo comparison of three-dimensional quantitative coronary angiography and three-dimensional fusion combining optical coherent tomography. AB - Aims: It is not clearly elucidated how the fusion technique improves the accuracy of endothelial shear stress (ESS) prediction, in comparison with that of three dimensional (3D) quantitative coronary angiography (QCA) alone. We aimed to evaluate the difference in geometric measurements and haemodynamic estimation between 3D QCA and a 3D fusion model combining 3D QCA and optical coherence tomography (OCT). Methods and results: Computational fluid dynamics was assessed in the coronary models of 20 patients. In the plane-per-plane comparison, the difference and agreement were assessed using a generalized linear mixed model and concordance correlation coefficient (CCC), respectively. The haemodynamic feature around minimum-lumen-diameter (MLD) was characterized using CCC values calculated for 1-mm segments. In comparison with the 3D fusion model, 3D QCA showed a shorter maximum lumen diameter (2.54 +/- 0.67 mm vs. 2.78 +/- 0.73 mm, P < 0.001) and smaller lumen area (4.81 +/- 2.56 mm2 vs. 5.66 +/- 2.97 mm2, P < 0.001), resulting in a significantly higher ESS (4.64 Pa vs. 3.78 Pa, p = 0.029). A more asymmetric lumen shape of the 3D fusion model was more likely associated with under- and over-estimation of the maximum and minimum lumen diameters in the 3D QCA model, respectively. The circumferential ESS variations, which were blunted by 3D QCA, showed the worst concordance near the MLD site (CCC = 0.370) on segment-based comparison. Conclusion: The 3D fusion technique may be a more relevant tool for the haemodynamic simulation of coronary arteries through providing more accurate lumen characterization than 3D QCA. PMID- 29028986 TI - A new haplotype block detection method for dense genome sequencing data based on interval graph modeling of clusters of highly correlated SNPs. AB - Motivation: Linkage disequilibrium (LD) block construction is required for research in population genetics and genetic epidemiology, including specification of sets of single nucleotide polymorphisms (SNPs) for analysis of multi-SNP based association and identification of haplotype blocks in high density sequencing data. Existing methods based on a narrow sense definition do not allow intermediate regions of low LD between strongly associated SNP pairs and tend to split high density SNP data into small blocks having high between-block correlation. Results: We present Big-LD, a block partition method based on interval graph modeling of LD bins which are clusters of strong pairwise LD SNPs, not necessarily physically consecutive. Big-LD uses an agglomerative approach that starts by identifying small communities of SNPs, i.e. the SNPs in each LD bin region, and proceeds by merging these communities. We determine the number of blocks using a method to find maximum-weight independent set. Big-LD produces larger LD blocks compared to existing methods such as MATILDE, Haploview, MIG ++, or S-MIG ++ and the LD blocks better agree with recombination hotspot locations determined by sperm-typing experiments. The observed average runtime of Big-LD for 13 288 240 non-monomorphic SNPs from 1000 Genomes Project autosome data (286 East Asians) is about 5.83 h, which is a significant improvement over the existing methods. Availability and implementation: Source code and documentation are available for download at http://github.com/sunnyeesl/BigLD. Contact: yyoo@snu.ac.kr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028987 TI - In silico structural modeling of multiple epigenetic marks on DNA. AB - Availability and implementation: The code together with examples and tutorials are available from http://www.cs.ox.ac.uk/mosaics. Contact: peter.minary@cs.ox.ac.uk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29028989 TI - PHAST, PHASTER and PHASTEST: Tools for finding prophage in bacterial genomes. AB - PHAST (PHAge Search Tool) and its successor PHASTER (PHAge Search Tool - Enhanced Release) have become two of the most widely used web servers for identifying putative prophages in bacterial genomes. Here we review the main capabilities of these web resources, provide some practical guidance regarding their use and discuss possible future improvements. PHAST, which was first described in 2011, made its debut just as whole bacterial genome sequencing and was becoming inexpensive and relatively routine. PHAST quickly gained popularity among bacterial genome researchers because of its web accessibility, its ease of use along with its enhanced accuracy and rapid processing times. PHASTER, which appeared in 2016, provided a number of much-needed enhancements to the PHAST server, including greater processing speed (to cope with very large submission volumes), increased database sizes, a more modern user interface, improved graphical displays and support for metagenomic submissions. Continuing developments in the field, along with increased interest in automated phage and prophage finding, have already led to several improvements to the PHASTER server and will soon lead to the development of a successor to PHASTER (to be called PHASTEST). PMID- 29028990 TI - A giant pulmonary artery aneurysm. PMID- 29028988 TI - QuASAR-MPRA: accurate allele-specific analysis for massively parallel reporter assays. AB - Motivation: The majority of the human genome is composed of non-coding regions containing regulatory elements such as enhancers, which are crucial for controlling gene expression. Many variants associated with complex traits are in these regions, and may disrupt gene regulatory sequences. Consequently, it is important to not only identify true enhancers but also to test if a variant within an enhancer affects gene regulation. Recently, allele-specific analysis in high-throughput reporter assays, such as massively parallel reporter assays (MPRAs), have been used to functionally validate non-coding variants. However, we are still missing high-quality and robust data analysis tools for these datasets. Results: We have further developed our method for allele-specific analysis QuASAR (quantitative allele-specific analysis of reads) to analyze allele-specific signals in barcoded read counts data from MPRA. Using this approach, we can take into account the uncertainty on the original plasmid proportions, over dispersion, and sequencing errors. The provided allelic skew estimate and its standard error also simplifies meta-analysis of replicate experiments. Additionally, we show that a beta-binomial distribution better models the variability present in the allelic imbalance of these synthetic reporters and results in a test that is statistically well calibrated under the null. Applying this approach to the MPRA data, we found 602 SNPs with significant (false discovery rate 10%) allele-specific regulatory function in LCLs. We also show that we can combine MPRA with QuASAR estimates to validate existing experimental and computational annotations of regulatory variants. Our study shows that with appropriate data analysis tools, we can improve the power to detect allelic effects in high-throughput reporter assays. Availability and implementation: http://github.com/piquelab/QuASAR/tree/master/mpra. Contact: fluca@wayne.edu or rpique@wayne.edu. Supplementary information: Supplementary data are available online at Bioinformatics. PMID- 29028991 TI - A Bayesian procedure for estimating the causal effects of nursing home bed-hold policy. AB - Nursing home bed-hold policies provide continuity of care for Medicaid beneficiaries by paying nursing homes to reserve beds so residents can return to their facility of occupancy following an acute hospitalization. In 2001, Michigan implemented bed-hold policies in nursing homes. We investigated the impact of these policies on mortality and hospitalizations using 1999-2004 quarterly data from nursing homes in Michigan and nursing homes in 11 states that did not implement such policies. Synthetic Control has been used to estimate the effects of policies by accounting for changes over time unrelated to the intervention. Synthetic Control is intended for scalar continuous outcome at each period, and assumes a single treated unit and multiple control units. We propose a Bayesian procedure to overcome these limitations. It imputes the outcomes of nursing homes in Michigan if they were not exposed to the policy by matching to non-exposed nursing homes that are associated with the exposed ones in the pre-policy period. Because sampling from a Bayesian model is computationally challenging, we describe an approximation procedure that can be implemented using existing software. Our approach can be applied to other studies that examine the impact of policies. PMID- 29028992 TI - Spatial Distribution of Megacopta cribraria (Hemiptera: Plataspidae) Adults, Eggs and Parasitism by Paratelenomus saccharalis (Hymenoptera: Platygastridae) in Soybean. AB - Since 2014, populations of the kudzu bug, Megacopta cribraria (F.) (Hemiptera: Plataspidae), have declined in the southeastern United States and seldom require treatment. This decline follows the discovery of Paratelenomus saccharalis (Dodd; Hymenoptera: Platygastridae), a non-native egg parasitoid. The objective of this project was to observe the temporal and spatial dynamics of P. saccharalis parasitism of kudzu bug egg masses in commercial soybean fields. Four fields were sampled weekly for kudzu bugs and egg masses at a density of one sample per 0.6 ha. Sampling commenced when soybean reached the R2 maturity stage and continued until no more egg masses were present. Responses including kudzu bugs, egg masses, and parasitism rates were analyzed using ANOVA, Spatial Analysis by Distance Indices (SADIE), and SaTScan spatial analysis software. Egg masses were collected from the field, held in the lab and monitored for emergence of kudzu bug nymphs or P. saccharalis. Kudzu bug populations were generally lower than previously reported in the literature and spatial aggregation was not consistently observed. Egg parasitism was first detected in early July and increased to nearly 40% in mid-August. Significant spatial patterns in parasitism were observed with spatio-temporal clusters being loosely associated with clusters of egg masses. There were no significant differences in parasitism rates between field margins and interiors, suggesting that P. saccharalis is an effective parasitoid of kudzu bug egg masses on a whole-field scale. PMID- 29028993 TI - High Prevalence of Multidrug-Resistant Mycoplasma genitalium in Human Immunodeficiency Virus-Infected Men Who Have Sex With Men in Alabama. AB - We tested for Mycoplasma genitalium in 157 HIV-infected men. Urogenital and rectal prevalence were 10.8% and 6.4%. Macrolide resistance mutations were detected in 70.6% and 80% of urogenital and rectal samples, and fluoroquinolone resistance mutations in 26.7% and 40%, respectively. PMID- 29028994 TI - An atypical cause of ST elevation. PMID- 29028995 TI - Sinus of Valsalva aneurysm protruding intramurally into right ventricle: does size really matter? PMID- 29028996 TI - Cold Tolerance of Megacopta cribraria (Hemiptera: Plataspidae): An Invasive Pest of Soybeans. AB - Kudzu bug, Megacopta cribraria Fabricius (Hemiptera: Plataspidae), first discovered in the United States in 2009, is an invasive pest of soybeans. From 2013 to 2016, Maryland has been the northern limit of its distribution in the United States. We sought to determine the physiological cold temperature limits, timing of movement to overwintering locations, and to characterize overwintering microhabitat temperature. We measured supercooling point (SCP) on three populations from distinct USDA plant hardiness zones in Maryland and Virginia between October and December of 2015. The average SCP across all sample months and populations was -12.6 degrees C and no consistent trend of month or population location were observed. Additionally, we assessed the lower lethal temperature to kill 50% of the population (LLT50) at the same population locations in October and November 2015. The average LLT50 over both months and all three population locations was -5.1 degrees C. Again, no consistent trend based on population location was observed but we did find a modest depression in the LLT50 values between October and November. We observed that kudzu bug overwinters in leaf litter and begins to move into the litter in late November to early December. Leaf litter moderates day to night temperature differences and was warmer than ambient temperature by an average of 0.7 degrees C. Evidence suggests that the cold tolerance of the kudzu bug limits its distribution north of Maryland. PMID- 29028997 TI - Serum Quantitative Proteomic Analysis Reveals Soluble EGFR To Be a Marker of Insulin Resistance in Male Mice and Humans. AB - To identify circulating factors as candidates involved in type 2 diabetes mellitus (T2DM), we conducted two different quantitative proteomic analyses: (1) db/db mouse sera were compared with db/+ mouse sera obtained at 4, 8, 12, and 24 weeks of age, and (2) db/db mouse sera from animals treated with liraglutide were compared with sera from animals without liraglutide treatment. Twenty proteins were differentially expressed in db/db mouse sera in the first experiment and eight proteins were differentially expressed in db/db mouse sera after liraglutide treatment in the second experiment. Soluble epidermal growth factor receptor (sEGFR) was identified as a common factor, and its protein level was significantly affected in both experiments. An enzyme-linked immunosorbent assay confirmed that the relatively low serum sEGFR levels in db/db mice were restored by liraglutide treatment. The serum sEGFR levels were elevated in diabetic mice with impaired insulin secretion and decreased in high-fat diet-fed mice and ob/ob mice. The serum sEGFR levels increased after the administration of a dual inhibitor of IGF-1/insulin receptor or streptozotocin. In humans with normal glucose tolerance or T2DM, the serum sEGFR levels were correlated with the fasting blood glucose, fasting serum insulin, homeostatic model assessment of insulin resistance, HbA1c, total cholesterol, low-density lipoprotein cholesterol, and triglycerides levels. These findings suggest that sEGFR might be a biomarker for evaluating insulin resistance or a therapeutic target of liraglutide. PMID- 29028998 TI - High Cryptococcal Antigen Titers in Blood Are Predictive of Subclinical Cryptococcal Meningitis Among Human Immunodeficiency Virus-Infected Patients. AB - Background: High mortality rates among asymptomatic cryptococcal antigen (CrAg) positive patients identified through CrAg screening, despite preemptive fluconazole treatment, may be due to undiagnosed cryptococcal meningitis. Methods: Symptoms were reviewed in CrAg-positive patients identified by screening 19233 individuals with human immunodeficiency virus infection and CD4 cell counts <100/uL at 17 clinics and 3 hospitals in Johannesburg from September 2012 until September 2015, and at 2 hospitals until June 2016. Cerebrospinal fluid samples from 90 of 254 asymptomatic patients (35%) and 78 of 173 (45%) with headache only were analyzed for cryptococcal meningitis, considered present if Cryptococcus was identified by means of India ink microscopy, culture, or CrAg test. CrAg titers were determined with stored blood samples from 62 of these patients. The associations between blood CrAg titer, concurrent cryptococcal meningitis, and mortality rate were assessed. Results: Cryptococcal meningitis was confirmed in 34% (95% confidence interval, 25%-43%; 31 of 90) of asymptomatic CrAg-positive patients and 90% (81%-96%; 70 of 78) with headache only. Blood CrAg titer was significantly associated with concurrent cryptococcal meningitis in asymptomatic patients (P < .001) and patients with headache only (P = .003). The optimal titer for predicting cryptococcal meningitis was >160 (sensitivity, 88.2%; specificity, 82.1%); the odds ratio for concurrent cryptococcal meningitis was 34.5 (95% confidence interval, 8.3-143.1; P < .001). Conclusions: About a third of asymptomatic CrAg-positive patients have concurrent cryptococcal meningitis. More effective clinical assessment strategies and antifungal regimens are required for CrAg-positive patients, including investigation for cryptococcal meningitis irrespective of symptoms. Where it is not possible to perform lumbar punctures in all CrAg-positive patients, blood CrAg titers should be used to target those most at risk of cryptococcal meningitis. PMID- 29028999 TI - Control of Pecan Weevil With Microbial Biopesticides. AB - The pecan weevil, Curculio caryae (Horn) (Coleoptera: Curculionidae), is a key pest of pecans Carya illinoinensis ([Wangenh.] K. Koch) (Fagales: Juglandaceae). Control recommendations rely on broad spectrum chemical insecticides. Due to regulatory and environmental concerns, effective alternatives for C. caryae control must be sought for pecan production in conventional and organic systems. We explored the use of microbial biopesticides for control of C. caryae in Georgia pecan orchards. Three experiments were conducted. The first investigated an integrated microbial control approach in an organic system at two locations. Three microbial agents, Grandevo (based on byproducts of the bacterium Chromobacterium subtsugae Martin, Gundersen-Rindal, Blackburn & Buyer), the entomopathogenic nematode Steinernema carpocapsae (Weiser), and entomopathogenic fungus Beauveria bassiana (Balsamo) Vuillemin, were applied to each treatment plot (0.6 ha) at different times during the season. A second experiment compared the effects of S. carpocapsae and B. bassiana applied as single treatments relative to application of both agents (at different times); survival of C. caryae was assessed approximately 11 mo after larvae were added to pots sunk in an organic pecan orchard. In a conventional orchard (with 1.0 ha plots), the third experiment compared Grandevo applications to a commonly used regime of chemical insecticides (carbaryl alternated with a pyrethroid). All experiments were repeated in consecutive years. The combined pest management tactic (experiment 1) reduced C. caryae infestation relative to non-treated control plots in both locations in 2014 and one of the two locations in 2015 (the other location had less than 1% infestation). In experiment 2, no differences among combined microbial treatments, single-applied microbial treatments or different numbers of application were observed, yet all microbial treatments reduced C. caryae survival relative to the control. In the third experiment, both Grandevo and standard chemical insecticide applications resulted in lower weevil infestation than the control (both years) and there was no difference between the insecticide treatments in 2014 although the chemical insecticide regime had slightly lower infestation in 2015. These results provide evidence that microbial biopesticides can substantially reduce pecan weevil infestations in organic and nonorganic systems. PMID- 29029000 TI - Spindle cell sarcoma of the mitral valve: a rare indication for mitral valve replacement. AB - Primary cardiac tumours are a rare finding and even rarer cause of valvular heart disease. We report a case of cardiac spindle cell sarcoma mimicking mitral valve stenosis and the subsequent operative management. PMID- 29029001 TI - Comparative study of bicuspid vs. tricuspid aortic valve stenosis. AB - Aims: To examine differences and similarities in bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV) stenosis occurring during the same age and whether any differences impact outcomes following aortic valve replacement (AVR). Methods and results: An age-matched cohort of 198 BAV stenosis and 198 TAV stenosis patients was identified from 888 consecutive patients undergoing AVR for severe AS. Mean age 68 +/- 6 years; 68% male. Patients with BAV were less likely to have multiple comorbidities, as measured by the Charlson Comorbidity Index (CCI) >2 (3 vs. 10%, P = 0.007). Indexed aortic valve area (0.44 +/- 0.09 vs. 0.42 +/- 0.08 cm2/m2, P = 0.17) and left ventricular ejection fraction (LVEF) were similar (62 +/- 11 vs. 61 +/- 12%, P = 0.12), but E/e' >=15 (46 vs. 66%, P = 0.0002) was less common in BAV stenosis. A tissue aortic valve prosthesis was more commonly utilized in both groups (81 vs. 78%, P = 0.54). Overall indexed effective orifice area was larger in BAV compared with TAV (1.08 +/- 0.33 vs. 0.96 +/- 0.25 cm2/m2, P = 0.0008). Five-year survival following AVR was lower in TAV compared with BAV stenosis (61 vs. 79%, P = 0.02). Independent predictors of survival following AVR were LVEF < 50% [hazard ratio (HR): 4.8, P = 0.0005], CCI > 2 (HR: 3.1, P = 0.015), effective orifice area index <=0.85 cm2/m2 (HR: 2.5, P = 0.004), and bioprosthesis (HR: 3.7, P = 0.02). Conclusion: In an age-matched cohort, TAV compared with BAV stenosis is associated with greater prevalence of cardiovascular risk factors and cardiac impairment and worse survival after AVR. PMID- 29029002 TI - Infrared intraoperative fluorescence imaging using indocyanine green in thoracic surgery. AB - Thoracic surgery faces many unique challenges that require innovative solutions. The increase in utilization of minimally invasive practices, poor overall cancer survival and significant morbidity of key operations remain key obstacles to overcome. Intraoperative fluorescence imaging is a process by which fluorescent dyes and imaging systems are used as adjuncts for surgeons in the operating room. Other surgical subspecialists have shown that intraoperative fluorescence imaging can be applied as a practical adjunct to their practices. Thoracic surgeons over the last 15 years have also used intraoperative fluorescence imaging for sentinel lymph node mapping, lung mapping, oesophageal conduit vascular perfusion and lung nodule identification. This review describes some of the key studies that demonstrate the applications of intraoperative near-infrared fluorescence imaging. PMID- 29029003 TI - Rearing Xyleborus volvulus (Coleoptera: Curculionidae) on Media Containing Sawdust from Avocado or Silkbay, With or Without Raffaelea lauricola (Ophiostomatales: Ophiostomataceae). AB - Like other ambrosia beetles, Xyleborus volvulus Fabricius (Coleoptera: Curculionidae) lives in a mutualistic symbiotic relationship with fungi that serve as food source. Until recently, X. volvulus was not considered a pest, and none of its symbionts were considered plant pathogens. However, recent reports of an association between X. volvulus and Raffaelea lauricola T.C. Harr., Fraedrich & Aghayeva (Ophiostomatales: Ophiostomataceae), the cause of the laurel wilt disease of avocado (Persea americana Mill. [Laurales: Lauraceae]), and its potential role as vector of the pathogen merit further investigation. The objective of this study was to evaluate three artificial media containing sawdust obtained from avocado or silkbay (Persea humilis Nash) for laboratory rearing of X. volvulus. The effect of R. lauricola in the media on the beetle's reproduction was also evaluated. Of the three media, the one with the lowest content of sawdust and intermediate water content provided the best conditions for rearing X. volvulus. Reproduction on this medium was not affected by the sawdust species or the presence of R. lauricola. On the other two media, there was a significant interaction between sawdust species and R. lauricola. The presence of R. lauricola generally had a negative effect on brood production. There was limited colonization of the mycangia of X. volvulus by R. lauricola on media inoculated with the pathogen. From galleries formed within the best medium, there was 50% recovery of R. lauricola, but recovery was much less from the other two media. Here, we report the best artificial substrate currently known for X. volvulus. PMID- 29029004 TI - Right ventricular thickening and extensive late gadolinium enhancement in a patient with rare case of isolated cardiac sarcoidosis and initially negative biopsy. PMID- 29029006 TI - Large-scale assessment of aortic stenosis: facing the next cardiac epidemic? AB - Aims: Aortic stenosis (AS) is the most frequent valvular disease in developed countries. As society grows older, the prevalence of AS increases. However, the real burden, current aetiology, severity distribution, and echocardiographic patterns of AS are not fully clear. The aim of the present study is to provide an accurate overall picture of AS, focusing on its epidemiology, aetiology, and echocardiographic features. Methods and results: A total of 29 502 consecutive echocardiograpies were prospectively included in this multicentre study. The present sample was composed of patients with advanced age (mean 75.2 years) and similar gender distribution. High proportion (7.2%) showed any grade of AS, with important number of patients (2.8%) presenting severe AS, most of them aged 75 years or more. Coexisting valvular disease appeared in almost half of the sample (49.6%), being the most frequently diagnosed aortic regurgitation (AR) (22%) followed by mitral regurgitation (MR) (15.6%). Degenerative aetiology was found in the vast majority (93.4%) of the studies whereas rheumatic is currently infrequent (3.35%). Low flow-low gradient (LFLG) appeared in 24.6% of patients with severe AS. Atrial fibrillation (23.1% vs. 11.6%; P = 0.002), MR (23.3% vs. 15.1%; P = 0.018), and right ventricle dysfunction (13.3% vs. 5.2%; P = 0.003) appeared frequently in LFLG group. Conclusions: Burden of AS is higher than previously assumed. Degenerative aetiology is the main cause of AS. Most of the patients are elder with high prevalence of significant co-existing valvular disease. LFLG severe AS is present in an important proportion of patients, showing high grade of left ventricle remodelling. PMID- 29029005 TI - Biopsy-derived Intestinal Epithelial Cell Cultures for Pathway-based Stratification of Patients With Inflammatory Bowel Disease. AB - Background: Endoplasmic reticulum [ER] stress was shown to be pivotal in the pathogenesis of inflammatory bowel disease. Despite progress in inflammatory bowel disease [IBD] drug development, not more than one-third of patients achieve steroid-free remission and mucosal healing with current therapies. Furthermore, patient stratification tools for therapy selection are lacking. We aimed to identify and quantify epithelial ER stress in a patient-specific manner in an attempt towards personalised therapy. Methods: A biopsy-derived intestinal epithelial cell culture system was developed and characterised. ER stress was induced by thapsigargin and quantified with a BiP enzyme-linked immunosorbent assay [ELISA] of cell lysates from 35 patients with known genotypes, who were grouped based on the number of IBD-associated ER stress and autophagy risk alleles. Results: The epithelial character of the cells was confirmed by E cadherin, ZO-1, and MUC2 staining and CK-18, CK-20, and LGR5 gene expression. Patients with three risk alleles had higher median epithelial BiP-induction [vs untreated] levels compared with patients with one or two risk alleles [p = 0.026 and 0.043, respectively]. When autophagy risk alleles were included and patients were stratified in genetic risk quartiles, patients in Q2, Q3, and Q4 had significantly higher ER stress [BiP] when compared with Q1 [p = 0.034, 0.040, and 0.034, respectively]. Conclusions: We developed and validated an ex vivo intestinal epithelial cell culture system and showed that patients with more ER stress and autophagy risk alleles have augmented epithelial ER stress responses. We thus presented a personalised approach whereby patient-specific defects can be identified, which in turn could help in selecting tailored therapies. PMID- 29029007 TI - Presence of micro- and macroalbuminuria and the association with cardiac mechanics in patients with type 2 diabetes. AB - Aims: Albuminuria-a marker of generalized vascular dysfunction-is a strong predictor of heart failure in patients with type 2 diabetes which may be caused by concomitant myocardial dysfunction reflecting the same underlying pathogenesis. Methods and results: We included 915 patients with type 2 diabetes from two secondary care centres and stratified according to albuminuria status in normo-, micro-, and macroalbuminuria. We performed comprehensive echocardiography including conventional imaging, tissue Doppler imaging, and 2D speckle tracking. Cardiac remodelling occurred in patients with increasing left ventricular (LV) mass index and LV wall thicknesses with increasing severity of albuminuria. Diastolic measures worsened across groups of albuminuria severity (normo-, micro , and macroalbuminuria, respectively): septal e' velocity [mean: 6.9 cm/s (SD 1.9), 6.4 (1.7), and 5.9 (1.7), P < 0.001], septal E/e' (median: 10.6 [interquartile range: 8.9-13.2], 12.1 [10.3-14.8], and 12.7 [10.4-16.6], P < 0.001), and left atrial volume index (24.3 mL/m2 [19.1-29.9], 25.7 [20.0-31.6], and 29.0 [22.2-34.9], P < 0.001) In contrast, systolic measures were only impaired in patients with macroalbuminuria: global longitudinal strain (GLS): [ 14.6% (2.7) in normo- and -13.3 (2.9) in macroalbuminuria, P < 0.001] and GLS rate [mean: -0.79 s-1 (0.17) in normo- and -0.72 (0.16) in macroalbuminuria, P = 0.001]. The findings persisted in subgroup analyses of patients without known coronary heart disease and with normal ejection fraction and in multivariable adjusted analyses. Conclusion: In patients with type 2 diabetes, microalbuminuria is associated with decreased diastolic function whereas decreased systolic function was only associated with macroalbuminuria supporting the notion of similar pathogenic mechanisms of albuminuria and impaired myocardial function. PMID- 29029008 TI - Complete arterial revascularization using bilateral internal mammary artery in T graft technique for multivessel coronary artery disease in on- or off-pump approach: does gender lose its historical impact on clinical outcome? AB - OBJECTIVES: Higher rates of mortality and morbidity have been reported in women undergoing coronary artery bypass grafting (CABG) compared with men. Different revascularization techniques (on-pump and off-pump) might influence this outcome. METHODS: We retrospectively analysed 3445 consecutively recruited patients (all comers) undergoing complete arterial CABG (CACABG) at a single centre between January 2000 and December 2012. CACABG was performed in all patients using bilateral skeletonized internal mammary artery in T-graft technique, either on pump (n = 2216) or off-pump (n = 1229). Early results (30-day) and long-term follow-up data were analysed with respect to gender-specific outcome. RESULTS: Women were older than men in both groups (P < 0.001), and men had a higher body mass index (on-pump: P < 0.001; off-pump: P = 0.02) compared with women. Men displayed a higher extent of coronary artery disease (P < 0.001) and an overall lower ejection fraction (P < 0.001) when undergoing on-pump CABG. No gender differences were observed for late survival (P = 0.74 vs P = 0.52) in on-pump and off-pump procedures, respectively. Late follow-up revealed a higher rate of FitzGibbon A graft patency in men undergoing the on-pump approach (P = 0.006). CONCLUSIONS: CACABG using bilateral internal mammary artery in T-graft technique showed excellent early and long-term results. No significant gender-specific differences were observed in both groups undergoing CACABG with respect to 30 days mortality and morbidity as well as late survival. However, late follow-up revealed a higher graft patency in men undergoing the on-pump approach, compared to women. PMID- 29029009 TI - The Effect of Physical Activity and Cardiorespiratory Fitness on All-Cause Mortality in Hong Kong Chinese Older Adults. AB - Background: It is unclear whether physical activity (PA) could predict all-cause mortality independently of cardiorespiratory fitness, and there are relatively few studies evaluating the combined effect of PA and cardiorespiratory fitness on mortality. Methods: We invited 1,242 Chinese older adults aged 69-94 years from the MrOs and MsOs cohort (Hong Kong) study for a 7-year follow-up. PA was measured by the Physical Activity Scale of the Elderly (PASE). Cardiorespiratory fitness, expressed as maximal oxygen uptake (VO2max), was assessed by performing symptom-limited maximal exercise testing on an electrically braked bicycle ergometer and 6-m walk test. We aimed to examine the independent and combined effect of PA and VO2max with all-cause mortality by cox proportional hazards models. Results: Ninety-nine deaths occurred over a mean follow-up of 5.3 +/- 0.8 years. PA was inversely associated with all-cause mortality in unadjusted and fully-adjusted models, and the association was still significant after further adjusted for VO2max. In stratified analysis, PA was significantly related to all cause mortality within both unfit and fit strata. As compared with those being active and fit, physically inactive and cardiorespiratory unfit individuals had the highest all-cause mortality risk. Physically active but unfit individuals and inactive but fit individuals had similar all-cause mortality risk. Conclusions: Among older adults, PA was an important predictor of all-cause mortality independently of VO2max. High cardiorespiratory fitness does not necessarily confer low mortality risk in physically inactive older adults. PMID- 29029011 TI - Obesity and prognosis: Time to forget about metabolically healthy obesity. PMID- 29029010 TI - Call for Action: Invasive Fungal Infections Associated With Ibrutinib and Other Small Molecule Kinase Inhibitors Targeting Immune Signaling Pathways. AB - Opportunistic infections caused by Pneumocystis jirovecii, Cryptococcus neoformans, and ubiquitous airborne filamentous fungi have been recently reported in patients with hematological cancers historically considered at low risk for invasive fungal infections (IFIs), after receipt of the Bruton tyrosine kinase inhibitor ibrutinib. The spectrum and severity of IFIs often observed in these patients implies the presence of a complex immunodeficiency that may not be solely attributed to mere inhibition of Bruton tyrosine kinase. In view of the surge in development of small molecule kinase inhibitors for treatment of malignant and autoimmune diseases, it is possible that there would be an emergence of IFIs associated with the effects of these molecules on the immune system. Preclinical assessment of the immunosuppressive effects of kinase inhibitors and human studies aimed at improving patient risk stratification for development of IFIs could lead to prevention, earlier diagnosis, and better outcomes in affected patients. PMID- 29029012 TI - Heterogeneity of studies in anesthesiology systematic reviews: a meta epidemiological review and proposal for evidence mapping. AB - Heterogeneity among the primary studies included in a systematic review (SR) is one of the most challenging considerations for systematic reviewers. Current practices in anaesthesiology SRs have not been evaluated, but traditional methods may not provide sufficient information to evaluate the true nature of these differences. We address these issues by examining the practices for evaluating heterogeneity in anesthesiology reviews. Also, we propose a mapping method for presenting heterogeneous aspects of the primary studies in SRs.We evaluated heterogeneity practices reported in SRs published in highly ranked anesthesiology journals and Cochrane reviews. Elements extracted from the SRs included heterogeneity tests, models used, analyses conducted, plots used, and I2 values. Additionally, we selected a SR to develop an evidence map in order to display clinical heterogeneity.Our statistical analysis showed 150/207 SRs reporting a test for statistical heterogeneity. Plots were used in 138 reviews to display heterogeneity. Subgroup analyses were the most commonly reported analysis (54%). Meta-regression and sensitivity analyses were used sparingly (25%; 23% respectively). A random effects model was most commonly reported (33%). Heterogeneity statistics across meta-analyses suggested that, in our sample, the majority (55%) did not present sufficient heterogeneity to be of great concern. Cochrane reviews (n=58) were also analysed. Plots were used in 88% of Cochrane reviews. Subgroup analysis was used in 59% Cochrane reviews, while sensitivity analysis was used in 62%.Many reviews did not provide sufficient detail regarding heterogeneity. We are calling for improvement to reporting practices. PMID- 29029013 TI - An empirical Bayes approach for multiple tissue eQTL analysis. AB - Expression quantitative trait locus (eQTL) analyses identify genetic markers associated with the expression of a gene. Most up-to-date eQTL studies consider the connection between genetic variation and expression in a single tissue. Multi tissue analyses have the potential to improve findings in a single tissue, and elucidate the genotypic basis of differences between tissues. In this article, we develop a hierarchical Bayesian model (MT-eQTL) for multi-tissue eQTL analysis. MT-eQTL explicitly captures patterns of variation in the presence or absence of eQTL, as well as the heterogeneity of effect sizes across tissues. We devise an efficient Expectation-Maximization (EM) algorithm for model fitting. Inferences concerning eQTL detection and the configuration of eQTL across tissues are derived from the adaptive thresholding of local false discovery rates, and maximum a posteriori estimation, respectively. We also provide theoretical justification of the adaptive procedure. We investigate the MT-eQTL model through an extensive analysis of a 9-tissue data set from the GTEx initiative. PMID- 29029015 TI - An experimental study comparing the respiratory effects of tapentadol and oxycodone in healthy volunteers. AB - Background: There is a clinical need for potent opioids that produce little or no respiratory depression. In the current study we compared the respiratory effects of tapentadol, a mu-opioid receptor agonist and noradrenaline reuptake inhibitor, and oxycodone, a selective mu-opioid receptor agonist. We hypothesize that tapentadol 100 mg has a lesser effect on the control of breathing than oxycodone 20 mg. Methods: Fifteen healthy volunteers were randomized to receive oral tapentadol (100 and 150 mg), oxycodone 20 mg or placebo immediate release tablets in a crossover double-blind randomized design. The main end-point of the study was the effect of treatment on the ventilatory response to hypercapnia and ventilation at an extrapolated end-tidal PCO2 of 7.3 kPa (55 mmHg, VE55); VE55 was assessed prior and for 6-h following drug intake. Results: All three treatments had typical opioid effects on the hypercapnic ventilatory response: a shift to the right coupled to a decrease of the response slope. Oxycodone 20 mg had a significantly larger respiratory depressant effect than tapentadol 100 mg (mean difference -5.0 L min-1, 95% confidence interval: -7.1 to -2.9 L min-1, P<0.01), but not larger than tapentadol 150 mg (oxycodone vs. tapentadol 150 mg: P>0.05). Conclusions: In this exploratory study we observed that both tapentadol and oxycodone produce respiratory depression. Tapentadol 100 mg but not 150 mg had a modest respiratory advantage over oxycodone 20 mg. Further studies are needed to explore how these results translate to the clinical setting. PMID- 29029014 TI - 1,25-Dihydroxyvitamin D Regulation of Glutamine Synthetase and Glutamine Metabolism in Human Mammary Epithelial Cells. AB - Genomic profiling has identified a subset of metabolic genes that are altered by 1,25-dihydroxyvitamin D (1,25D) in breast cells, including GLUL, the gene that encodes glutamine synthetase (GS). In this study, we explored the relevance of vitamin D modulation of GLUL and other metabolic genes in the context of glutamine utilization and dependence. We show that exposure of breast epithelial cells to glutamine deprivation or a GS inhibitor reduced growth and these effects were exacerbated by cotreatment with 1,25D. 1,25D downregulation of GLUL was sufficient to reduce abundance and activity of GS. Flow cytometry demonstrated that glutamine deprivation induced S phase arrest, likely due to reduced availability of glutamine for DNA synthesis. In contrast, 1,25D induced G0/G1 arrest, indicating that its effects are not solely due to reduced glutamine synthesis. Indeed, 1,25D also reduced expression of GLS1 and GLS2 genes, which code for glutaminases that shunt glutamine into the tricarboxylic acid (TCA) cycle. Consistent with reduced entry of glutamine into the TCA cycle, 1,25D inhibited glutamine oxidation and the metabolic response to exogenous glutamine as analyzed by Seahorse Bioscience extracellular flux assays. Effects of 1,25D on GLUL/GS expression and glutamine oxidation were retained in human mammary epithelial (HME) cells that express SV-40 (HME-LT cells) but not in those that express SV-40 and oncogenic H-Ras (HME-PR cells). Furthermore, HME-PR cells exhibited glutamine independence and expressed constitutively high levels of GLUL/GS, which were unaffected by 1,25D. Collectively, these data suggest that 1,25D alters glutamine availability, dependence, and metabolism in nontransformed and preneoplastic mammary epithelial cells in association with cell cycle arrest. PMID- 29029016 TI - diffuStats: an R package to compute diffusion-based scores on biological networks. AB - Summary: Label propagation and diffusion over biological networks are a common mathematical formalism in computational biology for giving context to molecular entities and prioritizing novel candidates in the area of study. There are several choices in conceiving the diffusion process-involving the graph kernel, the score definitions and the presence of a posterior statistical normalization which have an impact on the results. This manuscript describes diffuStats, an R package that provides a collection of graph kernels and diffusion scores, as well as a parallel permutation analysis for the normalized scores, that eases the computation of the scores and their benchmarking for an optimal choice. Availability and implementation: The R package diffuStats is publicly available in Bioconductor, https://bioconductor.org, under the GPL-3 license. Contact: sergi.picart@upc.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29029017 TI - Region-Specific Suppression of Hypothalamic Responses to Insulin To Adapt to Elevated Maternal Insulin Secretion During Pregnancy. AB - As part of the adaptation of maternal glucose regulation during pregnancy to ensure glucose provision to the fetus, maternal insulin concentrations become elevated. However, increased central actions of insulin, such as suppression of appetite, would be maladaptive during pregnancy. We hypothesized that central nervous system targets of insulin become less responsive during pregnancy to prevent overstimulation by the increased circulating insulin concentrations. To test this hypothesis, we have measured insulin-induced phosphorylation of Akt (pAkt) in specific hypothalamic nuclei as an index of hypothalamic insulin responsiveness. Despite higher endogenous insulin concentrations following feeding, arcuate nucleus pAkt levels were significantly lower in the pregnant group compared with the nonpregnant group. In response to an intracerebroventricular injection of insulin, insulin-induced pAkt was significantly reduced in the arcuate nucleus and ventromedial nucleus of pregnant rats compared with nonpregnant rats. Similar levels of insulin receptor beta and PTEN, a negative regulator of the phosphoinositide 3-kinase/Akt pathway, were detected in hypothalamic areas of nonpregnant and pregnant rats. In the ventromedial nucleus, however, levels of phosphorylated PTEN were significantly lower in pregnancy, suggesting that reduced inactivation of PTEN may contribute to the attenuated insulin signaling in this area during pregnancy. In conclusion, these results demonstrate region-specific changes in responsiveness to insulin in the hypothalamus during pregnancy that may represent an adaptive response to minimize the impact of elevated circulating insulin on the maternal brain. PMID- 29029018 TI - Corrigendum to 'Chewing 50 times per bite could help to resume oral feeding on the first postoperative day following minimally invasive oesophagectomy' [Eur J Cardiothorac Surg 2017]. PMID- 29029020 TI - The Endometrial Polarity Paradox: Differential Regulation of Polarity Within Secretory-Phase Human Endometrium. AB - A major cause of infertility in normal and assisted reproduction cycles is failure of the endometrium to undergo appropriate changes during the secretory phase of the menstrual cycle as it acquires receptivity for an implanting blastocyst. Current dogma states that loss of epithelial polarity in the luminal epithelial cells, the point of first contact between maternal endometrium and blastocyst, may facilitate embryo implantation. Loss of polarity is likely an important change during the secretory phase to overcome mutual repulsion between otherwise polarized epithelial surfaces. Although "plasma membrane transformation" describes morphological/molecular alterations associated with loss of polarity, direct measures of polarity have not been investigated. Transepithelial resistance, a proxy measure of polarity, was downregulated in endometrial epithelial (ECC-1) cells by combined estrogen/progestin, mimicking the hormonal milieu of the secretory phase. Examination of defined polarity markers within human endometrium throughout the menstrual cycle identified downregulation of atypical protein kinase C, Stardust, Crumbs, and Scribble within the luminal-epithelial layer, with upregulation of Scribble within the stromal compartment as the menstrual cycle progressed from the estrogen-dominated proliferative to progesterone-dominated secretory phase. Epithelial (ECC-1) Scribble expression was downregulated in vitro by combined estrogen/progestin and estrogen/progestin/human chorionic gonadotropin treatment, whereas knockdown of Scribble in these cells enhanced "embryo" (trophectodermal spheroid) adhesion. In contrast, Scribble was upregulated within decidualized primary human endometrial stromal cells, with decidualization downregulated upon Scribble knockdown. These data highlight an important contribution of polarity modulation within the human endometrium, likely important for receptivity. Clinical investigations examining how polarity may be modulated in the infertile endometrium may facilitate fertility. PMID- 29029021 TI - Aetiological heterogeneity of head and neck squamous cell carcinomas: the role of human papillomavirus infections, smoking and alcohol. AB - Tobacco and alcohol consumption are the main risk factors for head and neck squamous cell carcinoma (HNSCC). In addition, human papillomavirus (HPV) infection plays a causal role in oropharyngeal cancer (OPC), a subset of HNSCC. We assessed the independent effects of tobacco, alcohol and HPV infection on OPC risk in the head and neck cancer (HeNCe) Life study, a hospital-based case control study of HNSCC with frequency-matched controls by age and sex from four Montreal hospitals. Interviewers collected information on socio-demographic and behavioural factors. We tested exfoliated oral cells for HPV DNA by polymerase chain reaction (PCR). We included only OPC cases (n = 188) and controls (n = 427) without missing values for HPV, smoking or alcohol. We examined associations by estimating odds ratios (ORs) and corresponding 95% confidence intervals (CI) using unconditional logistic regression. Smoking (OR = 1.90, 95% CI: 1.04-3.45) and alcohol (OR = 2.74, 95% CI: 1.45-5.15) were associated with an increased risk of OPC independent of HPV status. Positivity for HPV 16 among heavy smokers and heavy alcohol users was associated with a 30.4-fold (95% CI: 8.94-103.26) and 18.6-fold (95% CI: 5.75-60.13) elevation in risk of OPC relative to participants who were HPV negative, respectively. Moreover, the combined effect of heavy smoking and alcohol comsumption with HPV 16 infection substantially increased OPC risk (OR = 48.76, 95% CI: 15.83-150.17) and (OR = 50.60, 95% CI: 15.96-160.40), respectively. Our results support the independent roles of smoking, alcohol and HPV infection in OPC risk and a possible combined effect. Efforts should be made to tackle these major risk factors simultaneously. PMID- 29029019 TI - Combined Loss of EAF2 and p53 Induces Prostate Carcinogenesis in Male Mice. AB - Mutations in the p53 tumor suppressor are frequent in patients with castration resistant prostate cancer but less so in patients with localized disease, and patients who have Li-Fraumeni with germline p53 mutations do not have an increased incidence of prostate cancer, suggesting that additional molecular and/or genetic changes are required for p53 to promote prostate carcinogenesis. ELL-associated factor 2 (EAF2) is a tumor suppressor that is frequently downregulated in advanced prostate cancer. Previous studies have suggested that p53 binds to EAF2, providing a potential mechanism for their functional interactions. In this study, we tested whether p53 and EAF2 could functionally interact in prostate cancer cells and whether concurrent inactivation of p53 and EAF2 could promote prostate carcinogenesis in a murine knockout model. Endogenous p53 coprecipitated with EAF2 in prostate cancer cells, and deletion mutagenesis indicated that this interaction was mediated through the C terminus of EAF2 and the DNA binding domain of p53. Concurrent knockdown of p53 and EAF2 induced an increase in proliferation and migration in cultured prostate cancer cells, and conventional p53 and EAF2 knockout mice developed prostate cancer. In human prostate cancer specimens, concurrent p53 nuclear staining and EAF2 downregulation was associated with high Gleason score. These findings suggest that EAF2 and p53 functionally interact in prostate tumor suppression and that simultaneous inactivation of EAF2 and p53 can drive prostate carcinogenesis. PMID- 29029022 TI - Functional Characterization of MicroRNA-27a-3p Expression in Human Polycystic Ovary Syndrome. AB - The goal of this study was to characterize the function of microRNA-27a-3p (miR 27a-3p) in polycystic ovary syndrome (PCOS). miR-27a-3p expression was analyzed in excised granulosa cells (GCs) from 21 patients with PCOS and 12 normal patients undergoing in vitro fertilization cycle treatments and in 17 nontreated cuneiform ovarian resection PCOS samples and 13 control ovarian samples from patients without PCOS. We found that the expression of miR-27a-3p was significantly increased in both excised GCs and the ovaries of patients with PCOS compared with the controls. Insulin treatment of the human granulosa-like tumor cell line (KGN) resulted in decreased downregulated expression of miR-27a-3p, and this effect appeared to be mediated by signal transducer and activator of transcription STAT1 and STAT3. The overexpression of miR-27a-3p in KGN cells inhibited SMAD5, which in turn decreased cell proliferation and promoted cell apoptosis. After KGN cells were stimulated with insulin for 48 hours, there was increased expression of SMAD5 protein and decreased apoptosis. Additionally, knockdown/overexpression of SMAD5 in KGN cells reduced/increased cell number and promoted/inhibited cell apoptosis. Insulin-stimulated primary GCs isolated from patients with PCOS, in contrast to normal GCs or KGN cells, did not exhibit decreased miR-27a-3p expression. The differences in the expression levels in KGN cells and human PCOS GCs are likely explained by increased miR-27a-3p expression in the GCs caused by insulin resistance in PCOS. Taken together, our data provided evidence for a functional role of miR-27a-3p in the GCs' dysfunction that occurs in patients with PCOS. PMID- 29029023 TI - Comprehensive evaluation of the effectiveness and safety of balloon pulmonary angioplasty for inoperable chronic thrombo-embolic pulmonary hypertension: long term effects and procedure-related complications. AB - Aims: Although balloon pulmonary angioplasty (BPA) improves haemodynamics and short-term prognosis in patients with inoperable chronic thrombo-embolic pulmonary hypertension (CTEPH), the long-term effects of BPA, and procedure related complications remain to be fully elucidated. Methods and results: From July 2009 to October 2016, we performed a total of 424 BPA sessions in 84 consecutive patients with inoperable CTEPH. We used 3D reconstructed computed tomography to determine target lesions of pulmonary arteries and optical computed tomography to select balloon size, if needed. In 77 patients (92%) who completed the BPA treatment [65 +/- 14 (SD) years-old, male/female 14/63], haemodynamics and exercise capacity were examined at 6 months after last BPA and in the chronic phase [>12 months after first BPA, 31 (20, 41) months]. The BPA treatment significantly improved mean pulmonary arterial pressure (38 +/- 10 to 25 +/- 6 mmHg), pulmonary vascular resistance (7.3 +/- 3.2 to 3.8 +/- 1.0 Wood units), and 6-minute walk distance (380 +/- 138 to 486 +/- 112 m) (all P < 0.01), and the improvements persisted throughout the follow-up period (43 +/- 27 months) (N = 53). In the 424 sessions, haemoptysis was noted in 60 sessions (14%), and non invasive positive pressure ventilation (NPPV) was used to treat haemoptysis and/or hypoxemia in 33 sessions (8%). Furthermore, 5-year survival was 98.4% (only one patient died of colon cancer) with no peri-procedural death. Conclusion: These results indicate that BPA improves haemodynamics and exercise capacity in inoperable CTEPH patients with acceptable complication rate and that the beneficial haemodynamic effects of BPA persist for years with resultant good long-term prognosis. PMID- 29029024 TI - DiversePathsJ: diverse shortest paths for bioimage analysis. AB - Motivation: We introduce a formulation for the general task of finding diverse shortest paths between two end-points. Our approach is not linked to a specific biological problem and can be applied to a large variety of images thanks to its generic implementation as a user-friendly ImageJ/Fiji plugin. It relies on the introduction of additional layers in a Viterbi path graph, which requires slight modifications to the standard Viterbi algorithm rules. This layered graph construction allows for the specification of various constraints imposing diversity between solutions. Results: The software allows obtaining a collection of diverse shortest paths under some user-defined constraints through a convenient and user-friendly interface. It can be used alone or be integrated into larger image analysis pipelines. Availability and implementation: http://bigwww.epfl.ch/algorithms/diversepathsj. Contact: michael.unser@epfl.ch or fred.hamprecht@iwr.uni-heidelberg.de. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29029025 TI - Insulin-Deficient Mouse beta-Cells Do Not Fully Maturebut Can Be Remedied Through Insulin Replacementby Islet Transplantation. AB - Insulin receptor (IR) insufficiency in beta-cells leads to impaired insulin secretion and reduced beta-cell hyperplasia in response to hyperglycemia. Selective IR deficiency in beta-cells in later embryological development may lead to compensatory beta-cell hyperplasia. Although these findings suggest insulin signaling on the beta-cell is important for beta-cell function, they are confounded by loss of signaling by the insulinlike growth factors through the IR. To determine whether insulin itself is necessary for beta-cell development and maturation, we performed a characterization of pancreatic islets in mice with deletions of both nonallelic insulin genes (Ins1-/-Ins2-/-). We immunostained neonatal Ins1-/-Ins2-/- and Ins1+/+Ins2+/+ pancreata and performed quantitative polymerase chain reaction on isolated neonatal islets. Insulin-deficient islets had reduced expression of factors normally expressed in maturing beta-cells, including muscoloaponeurotic fibrosarcoma oncogene homolog A, homeodomain transcription factor 6.1, and glucose transporter 2. Ins1-/-Ins2-/-beta-cells expressed progenitor factors associated with stem cells or dedifferentiated beta cells, including v-myc avian myolocytomatosis viral oncogene lung carcinoma derived and homeobox protein NANOG. We replaced insulin by injection or islet transplantation to keep mice alive into adulthood to determine whether insulin replacement was sufficient for the completed maturation of insulin-deficient beta cells. Short-term insulin glargine (Lantus(r)) injections partially rescued the beta-cell phenotype, whereas long-term replacement of insulin by isogenic islet transplantation supported the formation of more mature beta-cells. Our findings suggest that tightly regulated glycemia, insulin species, or other islet factors are necessary for beta-cell maturation. PMID- 29029026 TI - Long-segment pulmonary artery resection to avoid pneumonectomy: long-term results after prosthetic replacement. AB - OBJECTIVES: Resection of a long pulmonary artery (PA) segment infiltrated by tumour and reconstruction by conduit interposition or wide patch is a challenging but feasible option to avoid pneumonectomy. Our goal was to report the long-term results of our experience with this type of operation using various techniques and materials. METHODS: Between 1991 and 2015, 24 patients underwent sleeve resection of a long PA segment or extended resection (>2.5 cm) of 1 aspect of the circumference of the PA associated with lobectomy for centrally located lung cancer. Materials used for conduit reconstruction (20 patients) included pulmonary vein in 12 patients, autologous pericardium in 4, porcine pericardium in 3 and bovine pericardium in 1. Patches used in 4 patients consisted of porcine pericardium (2 patients) and pulmonary vein (2 patients). RESULTS: Twenty-three patients underwent left upper lobectomy without associated bronchoplasty. One patient underwent bronchovascular left upper sleeve lobectomy. The postoperative morbidity rate was 29.1%. No complications related to the reconstructive procedure occurred. There were no postoperative deaths. Complete patency of the reconstructed PA was shown in all patients by postoperative contrast computed tomography performed every 6 months. Pathological tumour stage ranged from I to IIIA. Five-year overall survival and disease-free survival rates were 69.9% and 52.7%, respectively, at a median follow-up of 41 months. CONCLUSIONS: Resection of the long PA segment followed by conduit or wide patch reconstruction is a feasible, safe and effective option to avoid pneumonectomy. Different biological materials can be used to provide adequate tissue characteristics; the choice is made on a case-by-case basis. Long-term results confirm the oncological reliability of this operation. PMID- 29029027 TI - Patent protection for microbial technologies. AB - Microbial technologies often serve as the basis of fundamental research tools in molecular biology. These present a variety of ethical, legal and social issues concerning their patenting. This commentary presents several case studies of these issues across three major microbiological tools: CRISPR, viral vectors and antimicrobial resistance drugs. It concludes that the development of these technologies-both scientifically and commercially-depend, in part, on the patent regime available for each, and researchers' willingness to enforce those patents against others. PMID- 29029028 TI - Intralobar pulmonary sequestration with an aortic aneurysm. PMID- 29029030 TI - Outcomes of surgery for infective endocarditis: a single-centre experience of 801 patients. AB - OBJECTIVES: Infective endocarditis (IE) remains a life-threatening disease, despite the improvement in diagnostic and therapeutic measures. We reviewed our outcomes for all adults who underwent surgery for endocarditis at our centre. METHODS: Between January 1995 and December 2013, 801 patients [586 men (73%)] underwent surgery for IE. Mean age was 60 +/- 14.7 years. Native endocarditis (NE) was present in 372 patients (46%), and 379 (47%) patients had active IE. The mean follow-up period was 4.6 +/- 4.75 years (maximum 20 years). RESULTS: Single valve endocarditis was present in 551 (69%) patients (392 aortic and 159 mitral). Multivalve involvement was present in 250 (31%) patients. Preoperative stroke was present in 149 (19%) patients, while 62 (8%) patients were on dialysis prior to surgery. Valve repair was possible in 122 (15%) patients, while 679 (85%) patients underwent valve replacement. Mechanical valves were used in 312 (39%) patients. Aortic homografts were used in 84 (10%) patients. Early mortality occurred in 64 (8%) patients. Overall survival at 5, 10 and 20 years was 68%, 45% and 8.4%, respectively. Postoperative stroke occurred in 16 (2%) patients, while 59 (7%) patients required new dialysis postoperatively. Multivariate analysis revealed active IE (P = 0.002), preoperative dialysis (P = 0.007), previous coronary artery bypass grafting (P = 0.001), root abscess (P = 0.006) and tricuspid valve or multivalve involvement (P = 0.002) to be predictors of early mortality. The need for dialysis (P < 0.001), previous coronary artery bypass grafting (P < 0.001) and mitral valve (P = 0.002) and tricuspid valve/multivalve involvement (P < 0.001) were significant predictors of late mortality. CONCLUSIONS: Active IE is associated with high perioperative mortality especially with multivalve and aortic root involvement. Preoperative stroke has no impact on perioperative mortality. Long-term survival for those who survived the immediate postoperative period is satisfactory, and mechanical valves are associated with the best long-term survival. PMID- 29029029 TI - A manifesto for cardiovascular imaging: addressing the human factor. AB - Our use of modern cardiovascular imaging tools has not kept pace with their technological development. Diagnostic errors are common but seldom investigated systematically. Rather than more impressive pictures, our main goal should be more precise tests of function which we select because their appropriate use has therapeutic implications which in turn have a beneficial impact on morbidity or mortality. We should practise analytical thinking, use checklists to avoid diagnostic pitfalls, and apply strategies that will reduce biases and avoid overdiagnosis. We should develop normative databases, so that we can apply diagnostic algorithms that take account of variations with age and risk factors and that allow us to calculate pre-test probability and report the post-test probability of disease. We should report the imprecision of a test, or its confidence limits, so that reference change values can be considered in daily clinical practice. We should develop decision support tools to improve the quality and interpretation of diagnostic imaging, so that we choose the single best test irrespective of modality. New imaging tools should be evaluated rigorously, so that their diagnostic performance is established before they are widely disseminated; this should be a shared responsibility of manufacturers with clinicians, leading to cost-effective implementation. Trials should evaluate diagnostic strategies against independent reference criteria. We should exploit advances in machine learning to analyse digital data sets and identify those features that best predict prognosis or responses to treatment. Addressing these human factors will reap benefit for patients, while technological advances continue unpredictably. PMID- 29029031 TI - Impact of Field Densities of the Naturalized Defoliator Caloptilia triadicae (Lepidoptera: Gracillariidae) on the Invasive Weed Chinese Tallowtree. AB - Chinese tallowtree, Triadica sebifera (L.) Small (Euphoriaceae), is one of the most aggressive weeds of coastal wetlands and forests of the southeastern United States. The lack of specialist herbivores in the invaded range may be one of the factors that contribute to the invasive nature of this weed. Chinese tallowtree has been the target of a classical biological control project since 2006. Several herbivore species are being tested for biological control of Chinese tallowtree. Concurrently, an adventive herbivore, Caloptilia triadicae Davis (Lepidoptera: Gracillariidae), was found feeding on Chinese tallowtree in the southeastern United States in 2004 and now occurs throughout the invaded range. Field populations of C. triadicae from two sites caused extensive mining damage to the Chinese tallowtree leaves. The greatest damage occurred after 30 d of exposure to C. triadicae in the herbivory treatment and amounted to about 25-30 leaf mines (early instars) and leaf rolls (late instars) per plant. Insecticide-treated plants had atmost 5-10 leaf mines and rolls per plant. Despite this difference, plant growth in height, number of new branches, and leaves did not differ significantly from plants protected from herbivory. Analysis of harvested plant results suggested that, in general, herbivory had little impact on biomass. However, there was a slight reduction in trunk weights in the unrestriced herbivory treatment compared with the insecticide-treated plants. Although this study exposed experimental plants to only 60 d of herbivory, these results suggested that C. triadicae alone will not exert sufficient control of invasive populations of Chinese tallowtree. Furthermore, they indicated that continued development of biological control agents that target Chinese tallowtree are needed. PMID- 29029032 TI - FOXA1 expression is a strong independent predictor of early PSA recurrence in ERG negative prostate cancers treated by radical prostatectomy. AB - FOXA1 (Fork-head box protein A1, HNF-3a) is a transcription factor involved in androgen signaling with relevance for lineage-specific gene expression of the prostate. The expression was analyzed by immunohistochemistry on a tissue microarray containing 11152 prostate cancer specimens. Results were compared with tumor phenotype, biochemical recurrence, androgen receptor expression, ETS related gene (ERG) status and other recurrent genomic alterations. FOXA1 expression was detectable in 97.6% of 8227 interpretable cancers and considered strong in 28.5%, moderate in 46.2% and weak in 22.9% of cases. High FOXA1 expression was associated with TMPRSS2:ERG rearrangement and ERG expression (P < 0.0001). High FOXA1 expression was linked to high Gleason grade, advanced pathological tumor (pT) stage and early PSA recurrence in ERG negative cancers (P < 0.0001), while these associations were either weak or absent in ERG positive cancers. In ERG negative cancers, the prognostic role of FOXA1 expression was independent of Gleason grade, pathological tumor stage, lymph node stage, surgical margin status and preoperative PSA. Independent prognostic value became even more evident if the analysis was limited to preoperatively available features such as biopsy Gleason grade, preoperative PSA, cT stage and FOXA1 expression (P < 0.0001). Within ERG negative cancers, FOXA1 expression was also strongly associated with PTEN and 5q21 deletions (P < 0.0001). High expression of FOXA1 is an independent prognostic parameter in ERG negative prostate cancer. Thus, FOXA1 measurement might provide clinically useful information in prostate cancer. PMID- 29029034 TI - Ten-year experience of endocardial linear infarct exclusion technique for ischaemic cardiomyopathy. AB - OBJECTIVES: To report the mid-term results of our surgical ventricular restoration procedure, called the endocardial linear infarct exclusion technique (ELIET), for ischaemic cardiomyopathy. METHODS: From 2006 to 2015, 43 consecutive patients who underwent surgical ventricular restoration with ELIET for ischaemic cardiomyopathy were retrospectively analysed. RESULTS: The mean age of patients at surgery was 65.3 +/- 9.2 years and EuroSCORE II was 13.7 +/- 12.0% (median 9.3%). The mean number of distal anastomoses of coronary artery bypass was 2.8 +/ 1.5. A concomitant mitral procedure was performed in 58.1% of patients. The hospital mortality rate was 11.6% (5 patients). The ejection fraction was improved from 24.1 +/- 9.2% to 31.7 +/- 8.2% in 2 weeks after surgery. The end systolic left ventricular volume index was effectively reduced, irrespective of performing a concomitant mitral procedure (reduction rate, ELIET: 35.6% vs ELIET + mitral: 39.2%). After ELIET, the sphericity index of the left ventricle did not worsen, and the conicity index was significantly improved. The 5-year estimated rates of survival and freedom from cardiac events were 71.3 +/- 7.9 and 61.1 +/- 8.3%, respectively. A concomitant mitral procedure was significantly associated with cardiac events based on univariate Cox hazard analysis. CONCLUSIONS: This study showed that ELIET can effectively reduce the ventricular volume and create an ellipsoidal left ventricle. PMID- 29029035 TI - Long-term survival and causes of death in patients with ST-elevation acute coronary syndrome without obstructive coronary artery disease. AB - Aims: We aimed to study survival and causes of death in patients with ST elevation acute coronary syndrome (STE-ACS) with and without obstructive coronary artery disease (CAD). Methods and results: We included 4793 consecutive patients with STE-ACS triaged for acute coronary angiography at a large cardiac invasive centre (2009-2014). Of these, 88% had obstructive CAD (stenosis >=50%), 6% had non-obstructive CAD (stenosis 1-49%), and 5% had normal coronary arteries. Patients without obstructive CAD were younger and more often female with fewer cardiovascular risk factors. Median follow-up time was 2.6 years. Compared with patients with obstructive CAD, the short-term hazard of death (<=30 days) was lower in both patients with non-obstructive CAD [hazard ratio (HR) 0.49, 95% confidence interval (CI) 0.27-0.89, P = 0.018] and normal coronary arteries (HR 0.31, 95% CI 0.11-0.83, P = 0.021). In contrast, the long-term hazard of death (>30 days) was similar in patients with non-obstructive CAD (HR 1.15, 95% CI 0.77 1.72, P = 0.487) and higher in patients with normal coronary arteries (HR 2.44, 95% CI 1.58-3.76, P < 0.001), regardless of troponin levels. Causes of death were cardiovascular in 70% of patients with obstructive CAD, 38% with non-obstructive CAD, and 32% with normal coronary arteries. Finally, patients without obstructive CAD had lower survival compared with an age and sex matched general population. Conclusions: STE-ACS patients without obstructive CAD had a long-term risk of death similar to or higher than patients with obstructive CAD. Causes of death were less often cardiovascular. This suggests that STE-ACS patients without obstructive CAD warrant medical attention and close follow-up. PMID- 29029036 TI - Intracellular superoxide level controlled by manganese superoxide dismutases affects trichothecene production in Fusarium graminearum. AB - The intracellular superoxide level is a clue to clarification of the regulatory mechanism for mycotoxin production in Fusarium graminearum. In this study, we focused on two manganese superoxide dismutases (SODs) of the fungus, FgSOD2 and FgSOD3, to investigate the relationship of the superoxide level to trichothecene production. Recombinant FgSOD2 and FgSOD3 showed SOD activity, and they were localized mainly in the mitochondria and cytoplasm, respectively. Trichothecene production and mRNA levels of Tri5 and Tri6, which encode a trichothecene biosynthetic enzyme and a key regulator of trichothecene production, respectively, were greatly reduced in gene-deletion mutants of FgSod2 and FgSod3 (DeltaFgSod2 and DeltaFgSod3). Significant increases in the cytosolic and mitochondrial superoxide levels were observed in DeltaFgSod2 and DeltaFgSod3, respectively. These results suggested that the cellular superoxide level affects trichothecene production in F. graminearum. PMID- 29029037 TI - Functional variants in the low-density lipoprotein receptor gene are associated with clear cell renal cell carcinoma susceptibility. AB - Recent studies indicate that abnormal levels of low-density lipoprotein (LDL), which is an important component of dyslipidaemia, are associated with alterations to cancer risk, including that of renal cell carcinoma (RCC). Single nucleotide polymorphisms at microRNA-binding sites contribute to cancer susceptibility and progression by affecting the messenger RNA (mRNA) function of target genes. In this case-control study, we examined the frequency of six potentially functional single nucleotide polymorphisms in the LDL receptor gene (LDLR) in 1004 clear cell RCC (ccRCC) patients and 1065 cancer-free subjects. Logistic regression analyses estimated odds ratios (ORs) and 95% confidence intervals (CIs). The association between genetic variants and levels of LDLR mRNA and protein was also evaluated. Compared with the CC genotype, multivariate logistic regression analysis showed that the LDLR rs2738464 variant GG genotype was associated with a significantly decreased ccRCC risk (P = 0.002, OR: 0.605, 95% CI: 0.439-0.833). Further functional experiments showed that the rs2738464 variant G allele affected miR-330 regulation of the LDLR 3'-untranslated region (UTR), increasing LDLR mRNA levels in patient kidney tissues. These findings suggest that LDLR rs2738464 may affect the affinity of miR-330 binding to the LDLR 3'-UTR, thus regulating LDLR expression and contributing to ccRCC risk. PMID- 29029033 TI - Trial Evaluating Ambulatory Therapy of Travelers' Diarrhea (TrEAT TD) Study: A Randomized Controlled Trial Comparing 3 Single-Dose Antibiotic Regimens With Loperamide. AB - Background: Recommended treatment for travelers' diarrhea includes the combination of an antibiotic, usually a fluoroquinolone or azithromycin, and loperamide for rapid resolution of symptoms. However, adverse events, postdose nausea with high-dose azithromycin, effectiveness of single-dose rifaximin, and emerging resistance to front-line agents are evidence gaps underlying current recommendations. Methods: A randomized, double-blind trial was conducted in 4 countries (Afghanistan, Djibouti, Kenya, and Honduras) between September 2012 and July 2015. US and UK service members with acute watery diarrhea were randomized and received single-dose azithromycin (500 mg; 106 persons), levofloxacin (500 mg; 111 persons), or rifaximin (1650 mg; 107 persons), in combination with loperamide (labeled dosing). The efficacy outcomes included clinical cure at 24 hours and time to last unformed stool. Results: Clinical cure at 24 hours occurred in 81.4%, 78.3%, and 74.8% of the levofloxacin, azithromycin, and rifaximin arms, respectively. Compared with levofloxacin, azithromycin was not inferior (P = .01). Noninferiority could not be shown with rifaximin (P = .07). At 48 and 72 hours, efficacy among regimens was equivalent (approximately 91% at 48 and 96% at 72 hours). The median time to last unformed stool did not differ between treatment arms (azithromycin, 3.8 hours; levofloxacin, 6.4 hours; rifaximin, 5.6 hours). Treatment failures were uncommon (3.8%, 4.4%, and 1.9% in azithromycin, levofloxacin, and rifaximin arms, respectively) (P = .55). There were no differences between treatment arms with postdose nausea, vomiting, or other adverse events. Conclusions: Single-dose azithromycin, levofloxacin, and rifaximin with loperamide were comparable for treatment of acute watery diarrhea. Clinical Trial Registration: NCT01618591. PMID- 29029038 TI - Geographical distance and local environmental conditions drive the genetic population structure of a freshwater microalga (Bathycoccaceae; Chlorophyta) in Patagonian lakes. AB - The patterns and mechanisms underlying the genetic structure of microbial populations remain unresolved. Herein we investigated the role played by two non mutually exclusive models (i.e. isolation by distance and isolation by environment) in shaping the genetic structure of lacustrine populations of a microalga (a freshwater Bathycoccaceae) in the Argentinean Patagonia. To our knowledge, this was the first study to investigate the genetic population structure in a South American microorganism. Population-level analyses based on ITS1-5.8S-ITS2 sequences revealed high levels of nucleotide and haplotype diversity within and among populations. Fixation index and a spatially explicit Bayesian analysis confirmed the occurrence of genetically distinct microalga populations in Patagonia. Isolation by distance and isolation by environment accounted for 38.5% and 17.7% of the genetic structure observed, respectively, whereas together these models accounted for 41% of the genetic differentiation. While our results highlighted isolation by distance and isolation by environment as important mechanisms in driving the genetic population structure of the microalga studied, none of these models (either alone or together) could explain the entire genetic differentiation observed. The unexplained variation in the genetic differentiation observed could be the result of founder events combined with rapid local adaptations, as proposed by the monopolisation hypothesis. PMID- 29029039 TI - The Effects of Audiovisual Inputs on Solving the Cocktail Party Problem in the Human Brain: An fMRI Study. AB - At cocktail parties, our brains often simultaneously receive visual and auditory information. Although the cocktail party problem has been widely investigated under auditory-only settings, the effects of audiovisual inputs have not. This study explored the effects of audiovisual inputs in a simulated cocktail party. In our fMRI experiment, each congruent audiovisual stimulus was a synthesis of 2 facial movie clips, each of which could be classified into 1 of 2 emotion categories (crying and laughing). Visual-only (faces) and auditory-only stimuli (voices) were created by extracting the visual and auditory contents from the synthesized audiovisual stimuli. Subjects were instructed to selectively attend to 1 of the 2 objects contained in each stimulus and to judge its emotion category in the visual-only, auditory-only, and audiovisual conditions. The neural representations of the emotion features were assessed by calculating decoding accuracy and brain pattern-related reproducibility index based on the fMRI data. We compared the audiovisual condition with the visual-only and auditory-only conditions and found that audiovisual inputs enhanced the neural representations of emotion features of the attended objects instead of the unattended objects. This enhancement might partially explain the benefits of audiovisual inputs for the brain to solve the cocktail party problem. PMID- 29029041 TI - Long-Term Effects of Berberis thunbergii (Ranunculales: Berberidaceae) Management on Ixodes scapularis (Acari: Ixodidae) Abundance and Borrelia burgdorferi (Spirochaetales: Spirochaetaceae) Prevalence in Connecticut, USA. AB - Japanese barberry (Berberis thunbergii de Candolle; Ranunculales: Berberidaceae) is an exotic invasive shrub that escaped cultivation in the United States and is now permanently established in many eastern and midwestern states. This study examined the long-term impacts of Japanese barberry management on blacklegged tick (Ixodes scapularis Say; Acari: Ixodidae) abundances and associated prevalence of Borrelia burgdorferi (Johnson, Schmid, Hyde, Steigerwalt, and Brenner; Spirochaetales: Spirochaetaceae), the etiologic agent of Lyme disease. At six locations across Connecticut, adult I. scapularis were sampled for up to 10 yr. At each location, we sampled an area where barberry infestations were unmanipulated, adjacent areas where barberry was virtually nonexistent, and areas where barberry was managed utilizing a variety of techniques. Barberry management reduced B. burgdorferi-infected adult I. scapularis (BBIAIS) abundances (191/ha +/- 64 SE) over 6 yr to statistically indifferent from that of no barberry areas (140/ha +/- 47 SE; P = 0.080) and significantly less than intact barberry stands (458/ha +/- 80 SE; P = 0.026). Over 9 yr, BBIAIS abundances in managed barberry remained lower than intact barberry stands (P = 0.037), but increased to be significantly greater than no barberry areas (P = 0.007) as cover increased over time. Longer-term data further document that Japanese barberry infestations are favorable habitat for I. scapularis. Control of Japanese barberry and other invasives should be at least on a 5-yr rotation to maintain low levels of invasive cover and eliminate humidity refugia to expose juvenile I. scapularis to more hostile environmental conditions in the interest of public health. PMID- 29029042 TI - Does pharmacokinetic/pharmacodynamic model-guided anaesthesia improve outcome after hip fracture surgery? PMID- 29029040 TI - Herbacetin suppresses cutaneous squamous cell carcinoma and melanoma cell growth by targeting AKT and ODC. AB - Herbacetin is a flavonol compound that is found in plants such as flaxseed and ramose scouring rush herb, it possesses a strong antioxidant capacity, and exerts anticancer effects on colon and breast cancer. However, the effect of herbacetin on skin cancer has not been investigated. Herein, we identified herbacetin as a dual V-akt murine thymoma viral oncogene homolog (AKT) and ornithine decarboxylase (ODC) inhibitor, and illustrated its anticancer effects in vitro and in vivo against cutaneous squamous cell carcinoma (SCC) and melanoma cell growth. To identify the direct target(s) of herbacetin, we screened several skin cancer-related protein kinases, and results indicated that herbacetin strongly suppresses both AKT and ODC activity. Results of cell-based assays showed that herbacetin binds to both AKT and ODC, inhibits TPA-induced neoplastic transformation of JB6 mouse epidermal cells, and suppresses anchorage-independent growth of cutaneous SCC and melanoma cells. The inhibitory activity of herbacetin was associated with markedly reduced NF-kappaB and AP1 reporter activity. Interestingly, herbacetin effectively attenuated TPA-induced skin cancer development and also exhibited therapeutic effects against solar-UV-induced skin cancer and melanoma growth in vivo. Our findings indicate that herbacetin is a potent AKT and ODC inhibitor that should be useful for preventing skin cancers. PMID- 29029043 TI - Degradation of the recalcitrant oil spill components anthracene and pyrene by a microbially driven Fenton reaction. AB - Oil spill components include a range of toxic saturated, aromatic and polar hydrocarbons, including pyrene and anthracene. Such contaminants harm natural ecosystems, adversely affect human health and negatively impact tourism and the fishing industries. Current physical, chemical and biological remediation technologies are often unable to completely remove recalcitrant oil spill components, which accumulate at levels greater than regulatory limits set by the Environmental Protection Agency. In the present study, a microbially driven Fenton reaction, previously shown to produce hydroxyl (HO * ) radicals that degrade chlorinated solvents and associated solvent stabilizers, was also found to degrade source zone concentrations of the oil spill components, pyrene (10 MUM) and anthracene (1 MUM), at initial rates of 0.82 and 0.20 MUM h -1 , respectively. The pyrene- and anthracene-degrading Fenton reaction was driven by the metal-reducing facultative anaerobe Shewanella oneidensis exposed to alternating aerobic and anaerobic conditions in the presence of Fe(III). Similar to the chlorinated solvent degradation system, the pyrene and anthracene degradation systems required neither the continual supply of exogenous H 2 O 2 nor UV-induced Fe(III) reduction to regenerate Fe(II). The microbially driven Fenton reaction provides the foundation for the development of alternate ex situ and in situ oil and gas spill remediation technologies. PMID- 29029044 TI - Enhanced killing of Escherichia coli using a combination of polyhexamethylene biguanide hydrochloride and 1-bromo-3-chloro-5,5- dimethylimidazolidine-2,4 dione. AB - The bactericidal activities of polyhexamethylene biguanide hydrochloride (PHMB), 1-bromo-3-chloro-5,5-dimethylimidazolidine-2,4-dione (BCDMH) and the combination of the two (designated as PB) were compared using Escherichia coli as the test organism. PB exhibited strong bactericidal activity: 10 mg/L PHMB combined with 8 mg/L BCDMH resulted in approximately 5.74 log10 reduction (LR), whereas 320 mg/L PHMB or 20 mg/L BCDMH was about 5.53 and 6.56 LR, respectively. Analyses using scanning electron microscopy, flow cytometry and atomic absorption spectroscopy indicated that PB, PHMB and BCDMH disrupted cell membranes and changed membrane structure and permeability, resulting in the leakage of intracellular soluble proteins and ions. PB exerted stronger effects on potassium and magnesium leakage, membrane potential and permeability than BCDMH did. PB caused less protein leakage than PHMB did. These results suggest that at a relatively low concentration, PB exhibited good bactericidal activity and physiological effect on E. coli. PMID- 29029045 TI - Revisiting the contribution of gene duplication of blaOXA-23 in carbapenem resistant Acinetobacter baumannii. PMID- 29029046 TI - Ammonia oxidisers in a non-nitrifying Brazilian savanna soil. AB - Low nitrification rates in Brazilian savanna (Cerrado) soils have puzzled researchers for decades. Potential mechanisms include biological inhibitors, low pH, low microbial abundance and low soil moisture content, which hinders microbial activity, including ammonia oxidation. Two approaches were used to evaluate these potential mechanisms: (i) manipulation of soil moisture and pH in microcosms containing Cerrado soil and (ii) assessment of nitrification inhibition in slurries containing mixtures of Cerrado soil and an actively nitrifying agricultural soil. Despite high ammonium concentration in Cerrado soil microcosms, little NO3- accumulation was observed with increasing moisture or pH, but in some Cerrado soil slurries, ammonia-oxidising archaea (AOA) amoA transcripts were detected after 14 days. In mixed soil slurries, the final NO3- concentration reflected the initial proportions of agricultural and Cerrado soils in the mixture, providing no evidence of nitrification inhibitors in Cerrado soil. AOA community denaturing gradient gel electrophoresis profiles were similar in the mixed and nitrifying soils. These results suggest that nitrification in Cerrado soils is not constrained by water availability, ammonium availability, low pH or biological inhibitors, and alternative potential explanations for low nitrification levels are discussed. PMID- 29029048 TI - General practitioners' perception of being a doctor in urban vs. rural regions in Germany - A focus group study. AB - Background: Inadequate recruitment numbers for GPs in rural regions give cause for concern. Working in rural regions is less attractive among medical students because of strong associations concerning a higher workload, restriction of privacy and demands exceeding their competences. We aimed to explore perceptions of GPs working in urban versus rural regions to contrast these prejudices. Methods: We conducted nine focus groups with GPs [female = 21, male = 44] from urban and rural regions, using a semi-structured guideline. Transcripts were content analyzed using deductive and inductive categories. Results: Urban GPs perceived themselves as a provider of medical services and rural GPs as being a medical companion. Compared to urban GPs, GPs from non-urban regions portray themselves more strongly as a family physician that accompanies patients 'from the cradle to the grave' and is responsible for the treatment of any medical issue. They emphasized their close relationship with their patients. Rural GPs establish a close relationship with their patients and considered this as beneficial for the treatment relationship. This aspect seems to play a subordinate role for urban GPs. Conclusions: GPs enjoy their work and the role they play in their patients' lives. Being a rural GP was described very positively. Greater emphasis should be made on positive aspects of being a GP in rural regions, e.g. by university lectures given by rural GPs, campaigns emphasizing the positive aspects of working as a GP [in rural regions], promotion of work placements or incentives for working in rural general practices. PMID- 29029047 TI - Community structure of rare methanogenic archaea: insight from a single functional group. AB - The rare biosphere, the low abundant microbial populations, is suggested to be a conserved way of microbial life. Here we conducted a molecular survey of rare methanogenic archaea in the environment targeting the mcrA gene in order to test if general concepts associated with the structure of the rare bacterial biosphere also apply to single functional groups. Similar to what is known about rare bacterial communities, the contribution of rare methanogens to the alpha diversity is much larger than to Bray-Curtis measures. Moreover, a similar core group of methanogens harbored by the abundant and rare communities suggests similar sources and environmental controls of both groups. Among the communities of different levels of rarity, the conditionally rare methanogenic taxa largely account for the overall community dynamics of the rare biosphere and likely enter the dominant community under favorable environmental conditions. In addition, we observed a positive correlation between the alpha diversity and the production of methane when the rare taxa were taken into account. This supports the concept that increasing microbial biodiversity enhances ecological function. The composition and environmental associations of the rare methanogenic biosphere allow us to conclude that rarity is a conserved way also for single functional groups. PMID- 29029049 TI - Intraoperative naloxone reduces remifentanil-induced postoperative hyperalgesia but not pain: a randomized controlled trial. AB - Background: Intraoperative use of a high-dose remifentanil may induce postoperative hyperalgesia. Low-dose naloxone can selectively reverse some adverse effects of opioids without compromising analgesia. We thus hypothesized that the intraoperative use of a high-dose remifentanil combined with a low-dose naloxone infusion reduces postoperative hyperalgesia compared with the use of remifentanil alone. Methods: Patients undergoing elective thyroid surgery were randomly assigned into one of three groups, depending on the intraoperative effect-site concentration of remifentanil, with or without a continuous infusion of naloxone: 4 ng ml-1 remifentanil with 0.05 MUg kg-1 h-1 naloxone in the high remifentanil with naloxone group, and 4 or 1 ng ml-1 remifentanil with a placebo in the high- or low-remifentanil groups, respectively. We measured the pain thresholds (primary outcome) to mechanical stimuli using von Frey filaments and incidence of hyperalgesia on the peri-incisional area 24 h after surgery. We also measured pain intensity, analgesic consumptions and adverse events up to 48 h after surgery. Results: The pain threshold presented as von Frey numbers [median (interquartile range)] was significantly lower in the high-remifentanil group (n=31) than in the high-remifentanil with naloxone (n=30) and the low remifentanil (n=30) groups [3.63 (3.22-3.84) vs 3.84 (3.76-4.00) vs 3.80 (3.69 4.08), P=0.011]. The incidence of hyperalgesia was also higher in the high remifentanil group than in the other groups [21/31 vs 10/30 vs 9/30, P=0.005]. Postoperative pain intensity, analgesic consumptions and adverse events were similar between groups. Conclusions: The intraoperative use of low-dose naloxone combined with high-dose remifentanil reduced postoperative hyperalgesia but not pain. Clinical trial registration: NCT02856087. PMID- 29029050 TI - Small-sized conduits in the right ventricular outflow tract in young children: bicuspidalized homografts are a good alternative to standard conduits. AB - OBJECTIVES: Downsizing a homograft (HG) through bicuspidalization has been used for more than 2 decades to overcome the shortage of small-sized conduits for reconstruction of the right ventricular outflow tract (RVOT) in young children. Our goal was to investigate the durability of bicuspidalized HGs compared with other small HGs. METHODS: A retrospective analysis of 93 conduits <=20 mm, implanted over 23 years, was performed. The end-points were survival, structural valve degeneration and conduit replacement. The conduits comprised 40 pulmonary HGs, 12 aortic HGs, 17 bicuspidalized HGs and 24 xenografts. RESULTS: The median age, mean conduit diameter and z-value at implantation were 1.4 (interquartile range 0.3-3) years, 16.5 +/- 2.7 mm and 2.8 +/- 1.3, respectively. Valve position was heterotopic in 59 patients and orthotopic in 34 patients. At a mean follow-up period of 7.6 +/- 5.9 years, the hospital survival rate was 89%. Freedom from explant at 5 and 10 years was 83 +/- 5% and 52 +/- 6%, respectively. Freedom from structural valve degeneration was 79 +/- 5% at 5 years and 47 +/- 6% at 10 years [68 +/- 8% for pulmonary HG, 42 +/- 16% for bicuspidalized HG, 31 +/- 15% for aortic HG and 20 +/- 9% for xenografts (log rank P < 0.001)]. Multivariable analysis indicated an increased risk for structural valve degeneration with smaller conduit size (hazard ratio 0.79, 95% confidence interval 0.67-0.94; P < 0.008), extra-anatomic position (hazard ratio 2.71, 95% confidence interval 1.33 5.50; P = 0.006) and the use of xenografts compared with non-downsized pulmonary HGs (hazard ratio 4.90, 95% confidence interval 2.23-10.76; P < 0.001). CONCLUSIONS: Appropriately sized pulmonary HGs remain the most durable option for a right ventricular outflow tract conduit in young children. However, when a small pulmonary HG is unavailable, bicuspidalization offers a valid alternative, preferable to xenograft conduits, at mid-term follow-up. PMID- 29029052 TI - Corrigendum to: Adenoviral intramyocardial VEGF-DDeltaNDeltaC gene transfer increases myocardial perfusion reserve in refractory angina patients: a phase I/IIa study with 1-year follow-up. PMID- 29029051 TI - Multilocus sequence typing and virulence genotyping of Streptococcus suis serotype 9 isolates revealed high genetic and virulence diversity. AB - Streptococcus suis is an important swine pathogen that can cause a variety of diseases. Streptococcus suis serotype 9 (SS9) is a prevalent serotype, but limited information is available. Here, we studied and compared 30 SS9 isolates, including 24 isolates from China between year 2004 and 2013, 5 isolates from Vietnam and a serotype reference isolate from Denmark. A multilocus sequence typing (MLST) analysis was performed to exploit the genetic relationships between those isolates. The phylogenetic tree based on the MLST data divides those isolates into two clades (I and II), revealing different evolutionary paths of collected strains. A virulence genotyping analysis was performed by detecting 23 virulence-related genes; the clustering result also revealed two clusters (I and II), highly in accordance with MLST analysis result, showing that phylogenetic relatedness led to the presence of similar virulence genotypes. Murine model infection experiment was performed to assess the virulence of those strains in cluster I and cluster II, which displayed high virulence diversity even within a same cluster/ST. Notably, ST 243 could be regarded as an ST with high virulence potential in SS9. In conclusion, this study has revealed high genetic and virulence diversity in SS9 isolates. PMID- 29029053 TI - A 12-Year Follow-up on the Long-Term Effectiveness of the Quadrivalent Human Papillomavirus Vaccine in 4 Nordic Countries. AB - Background: The long-term effectiveness of the quadrivalent human papillomavirus (qHPV) vaccine was assessed by monitoring the combined incidence of cervical intraepithelial neoplasia (CIN2, CIN3), adenocarcinoma in situ (AIS), and cervical cancer related to HPV16 or HPV18. Methods: Women from Nordic countries of Denmark, Iceland, Norway, and Sweden who received a 3-dose regimen of the qHPV vaccine in the beginning of FUTURE II (Females United to Unilaterally Reduce Endo/Ectocervical Disease; V501-015, base study NCT00092534) are followed through different national registries. Effectiveness analyses were conducted approximately 2 years following completion of the base study and occur approximately every 2 years thereafter for 10 years (ie, 14 years from day 1 of the base study). Vaccine effectiveness against HPV16/18-related CIN2 or worse (CIN2+) was estimated by comparing the observed incidence with the expected incidence of CIN2+ in an unvaccinated cohort using historical registry data. Results: In the per-protocol population (2084 women) analysis of effectiveness after the first 12 years, there were no breakthrough cases of HPV16/18 CIN2+ after 9437 person- years of follow-up. Statistical power was sufficient to conclude that qHPV vaccine effectiveness remains above 90% for at least 10 years. The number of person-years during the follow-up interval of 10-12 years is continuing to accrue and shows a trend toward continuing effectiveness of the vaccine during that period. Conclusion: The qHPV vaccine shows continued protection in women through at least 10 years, with a trend for continued protection through 12 years of follow-up. Clinical Trials Registration: NCT00092534. Study Identification: V501-015. PMID- 29029055 TI - Prognostic Models for 9-Month Mortality in Tuberculous Meningitis. AB - Background: Tuberculous meningitis (TBM) is the most severe form of extrapulmonary tuberculosis. We developed and validated prognostic models for 9 month mortality in adults with TBM, with or without human immunodeficiency virus (HIV) infection. Methods: We included 1699 subjects from 4 randomized clinical trials and 1 prospective observational study conducted at 2 major referral hospitals in Southern Vietnam from 2001-2015. Modeling was based on multivariable Cox proportional hazards regression. The final prognostic models were validated internally and temporally and were displayed using nomograms and a Web-based app (https://thaole.shinyapps.io/tbmapp/). Results: 951 HIV-uninfected and 748 HIV infected subjects with TBM were included; 219 of 951 (23.0%) and 384 of 748 (51.3%) died during 9-month follow-up. Common predictors for increased mortality in both populations were higher Medical Research Council (MRC) disease severity grade and lower cerebrospinal fluid lymphocyte cell count. In HIV-uninfected subjects, older age, previous tuberculosis, not receiving adjunctive dexamethasone, and focal neurological signs were additional risk factors; in HIV infected subjects, lower weight, lower peripheral blood CD4 cell count, and abnormal plasma sodium were additional risk factors. The areas under the receiver operating characteristic curves (AUCs) for the final prognostic models were 0.77 (HIV-uninfected population) and 0.78 (HIV-infected population), demonstrating better discrimination than the MRC grade (AUC, 0.66 and 0.70) or Glasgow Coma Scale score (AUC, 0.68 and 0.71) alone. Conclusions: The developed models showed good performance and could be used in clinical practice to assist physicians in identifying patients with TBM at high risk of death and with increased need of supportive care. PMID- 29029054 TI - Prostaglandin-Endoperoxide Synthase 1 Mediates the Timing of Parturition in Mice Despite Unhindered Uterine Contractility. AB - Cyclooxygenase (COX)-derived prostaglandins stimulate uterine contractions and prepare the cervix for parturition. Prior reports suggest Cox-1 knockout (KO) mice exhibit delayed parturition due to impaired luteolysis, yet the mechanism for late-onset delivery remains unclear. Here, we examined key factors for normal onset of parturition to determine whether any could account for the delayed parturition phenotype. Pregnant Cox-1KO mice did not display altered timing of embryo implantation or postimplantation growth. Although messenger RNAs of contraction-associated proteins (CAPs) were differentially expressed between Cox 1KO and wild-type (WT) myometrium, there were no differences in CAP agonist induced intracellular calcium release, spontaneous or oxytocin (OT)-induced ex vivo uterine contractility, or in vivo uterine contractile pressure. Delayed parturition in Cox-1KO mice persisted despite exogenous OT treatment. Progesterone (P4) withdrawal, by ovariectomy or administration of the P4 antagonist RU486, diminished the delayed parturition phenotype of Cox-1KO mice. Because antepartum P4 levels do not decline in Cox-1KO females, P4-treated WT mice were examined for the effect of this hormone on in vivo uterine contractility and ex vivo cervical dilation. P4-treated WT mice had delayed parturition but normal uterine contractility. Cervical distensibility was decreased in Cox-1KO mice on the day of expected delivery and reduced in WT mice with long-term P4 treatment. Collectively, these findings show that delayed parturition in Cox-1KO mice is the result of impaired luteolysis and cervical dilation, despite the presence of strong uterine contractions. PMID- 29029056 TI - Time to Switch to Second-line Antiretroviral Therapy in Children With Human Immunodeficiency Virus in Europe and Thailand. AB - Background: Data on durability of first-line antiretroviral therapy (ART) in children with human immunodeficiency virus (HIV) are limited. We assessed time to switch to second-line therapy in 16 European countries and Thailand. Methods: Children aged <18 years initiating combination ART (>=2 nucleoside reverse transcriptase inhibitors [NRTIs] plus nonnucleoside reverse transcriptase inhibitor [NNRTI] or boosted protease inhibitor [PI]) were included. Switch to second-line was defined as (i) change across drug class (PI to NNRTI or vice versa) or within PI class plus change of >=1 NRTI; (ii) change from single to dual PI; or (iii) addition of a new drug class. Cumulative incidence of switch was calculated with death and loss to follow-up as competing risks. Results: Of 3668 children included, median age at ART initiation was 6.1 (interquartile range (IQR), 1.7-10.5) years. Initial regimens were 32% PI based, 34% nevirapine (NVP) based, and 33% efavirenz based. Median duration of follow-up was 5.4 (IQR, 2.9 8.3) years. Cumulative incidence of switch at 5 years was 21% (95% confidence interval, 20%-23%), with significant regional variations. Median time to switch was 30 (IQR, 16-58) months; two-thirds of switches were related to treatment failure. In multivariable analysis, older age, severe immunosuppression and higher viral load (VL) at ART start, and NVP-based initial regimens were associated with increased risk of switch. Conclusions: One in 5 children switched to a second-line regimen by 5 years of ART, with two-thirds failure related. Advanced HIV, older age, and NVP-based regimens were associated with increased risk of switch. PMID- 29029057 TI - Patient-specific modelling of regional tobramycin concentration levels in airways of patients with cystic fibrosis: can we dose once daily? AB - Background: Inhaled tobramycin is important in the treatment of Pseudomonas aeruginosa (Pa) infections in cystic fibrosis (CF). However, despite its use it fails to attenuate the clinical progression of CF lung disease. The bactericidal efficacy of tobramycin is known to be concentration-dependent and hence changing the dosing regimen from a twice-daily (q12h) inhalation to a once-daily (q24h) inhaled double dose could improve treatment outcomes. Objectives: To predict local concentrations of nebulized tobramycin in the airways of patients with CF, delivered with the small airway-targeting Akita(r) system or standard PARI-LC(r) Plus system, with different inspiratory flow profiles. Methods: Computational fluid dynamic (CFD) methods were applied to patient-specific airway models reconstructed from chest CT scans. The following q12h and q24h dosing regimens were evaluated: Akita(r) (150 and 300 mg) and PARI-LC(r) Plus (300 and 600 mg). Site-specific concentrations were calculated. Results: Twelve CT scans from patients aged 12-17 years (median = 15.7) were selected. Small airway concentrations were 762-2999 mg/L for the q12h dosing regimen and 1523-5997 mg/L for the q24h dosing regimen, well above the MIC for WT Pa strains. Importantly, the q24h regimen appeared to be more suitable than the q12h regimen against more resistant Pa strains and the inhibitory effects of sputum on tobramycin activity. Conclusions: CFD modelling showed that high concentrations of inhaled tobramycin are indeed delivered to the airways, with the Akita(r) system being twice as efficient as the PARI-LC(r) system. Ultimately, the q24h dosing regimen appears more effective against subpopulations with high MICs (i.e. more resistant strains). PMID- 29029058 TI - Inter-ethnic differences in valve morphology, valvular dysfunction, and aortopathy between Asian and European patients with bicuspid aortic valve. AB - Background: Transcatheter aortic valve replacement (TAVR) has been shown safe and feasible in patients with bicuspid aortic valve (BAV) morphology. Evaluation of inter-ethnic differences in valve morphology and function and aortic root dimensions in patients with BAV is important for the worldwide spread of this therapy in this subgroup of patients. Comparisons between large European and Asian cohorts of patients with BAV have not been performed, and potential differences between populations may have important implications for TAVR. Aim: The present study evaluated the differences in valve morphology and function and aortic root dimensions between two large cohorts of European and Asian patients with BAV. Methods and results: Aortic valve morphology was defined on transthoracic echocardiography according to the number of commissures and raphe: type 0 = no raphe and two commissures, type 1 = one raphe and two commissures, type 2 = two raphes and one commissure. Aortic stenosis and regurgitation were graded according to current recommendations. For this study, aortic root dimensions were manually measured on transthoracic echocardiograms at the level of the aortic annulus, sinus of Valsalva (SOV), sinotubular junction (STJ), and ascending aorta (AA). Of 1427 patients with BAV (45.2 +/- 18.1 years, 71.9% men), 794 (55.6%) were Europeans and 633 (44.4%) were Asians. The groups were comparable in age and proportion of male sex. Asians had higher prevalence of type 1 BAV with raphe between right and non-coronary cusps than Europeans (19.7% vs. 13.6%, respectively; P < 0.001), whereas the Europeans had higher prevalence of type 0 BAV (two commissures, no raphe) than Asians (14.5% vs. 6.8%, respectively; P < 0.001). The prevalence of moderate and severe aortic regurgitation was higher in Europeans than Asians (44.2% vs. 26.8%, respectively; P < 0.001) whereas there were no differences in BAV with normal function or aortic stenosis. After adjusting for demographics, comorbidities, and valve function, the dimensions of the aortic annulus [mean difference 1.17 mm/m2, 95% confidence interval (CI) 0.96-1.39], SOV (mean difference 1.86 mm/m2, 95% CI 1.47 2.24), STJ (mean difference 0.52 mm/m2, 95% CI 0.14-0.90) and AA (mean difference 1.05 mm/m2, 95% CI 0.57-1.52) were significantly larger among Asians compared with Europeans. Conclusions: This large multicentre registry reports for the first time that Asians with BAV showed more frequently type 1 BAV (with fusion between right and non-coronary cusp) and have larger aortic dimensions than Europeans. These findings have important implications for prosthesis type and size selection for TAVR. PMID- 29029059 TI - Canonical Wnt/beta-Catenin Signaling Regulates Postnatal Mouse Epididymal Development But Does Not Affect Epithelial Cell Differentiation. AB - The epithelial lining of the epididymis establishes an optimal environment in which spermatozoa acquire the ability to fertilize an oocyte. This highly specialized organ develops from a simple embryonic tube known as the Wolffian duct (WD). How the simple columnar epithelium of WD acquires the complex features of the adult epididymal epithelium is currently unclear. During these first few weeks after birth, the epididymal epithelium undergoes major changes and by 5 weeks consists of four different cell types. The main objective of this study was to evaluate potential roles of Wnt signaling during postnatal epididymal development and differentiation. To analyze the activity of Wnt signaling during postnatal development, we evaluated the epididymis of TCFGFP mice, a Wnt reporter mouse model. Wnt signaling activity as indicated by green fluorescent protein expression was detected in the whole epididymis of TCFGFP mice during the first 2 weeks of life but was localized only to the caput region by 5 weeks of age. Using a genetic cell lineage tracing approach, we showed that all four of the epididymal epithelial cell types originated from the simple columnar epithelium of WD. To delineate the functional significance of epithelial Wnt signaling in epididymal development and differentiation, we generated a mouse model in which beta-catenin (Ctnnb1) was specifically ablated from the epididymal epithelium upon administration of doxycycline. Genetic suppression of epithelial Wnt/beta catenin signaling inhibited epididymal development by affecting cell proliferation but had no effect on epithelial cell differentiation. PMID- 29029060 TI - Metagenomics: novel enzymes from non-culturable microbes. AB - In the transition to the post-petroleum economy, there is a growing demand for novel enzymes with high process performances to replace traditional chemistry with a more 'green' approach. To date, microorganisms encompass the richest source of industrial biocatalysts, but the Earth-living microbiota remains largely untapped by using traditional isolation and cultivation methods. Metagenomics, which is culture independent, represents a powerful tool for discovering novel enzymes from unculturable microorganisms. Herein, we summarize the variety of approaches adopted for mining environmental DNA and, based on a systematic literature review, we provide a comprehensive list of 332 industrially relevant enzymes discovered from metagenomes within the last three years. PMID- 29029061 TI - Effects of access to radiology in out-of-hours primary care in the Netherlands: a prospective observational study. AB - Background: In the Netherlands, out-of-hours primary care is provided in general practitioner-cooperatives (GPCs). These are increasingly located on site with emergency departments (ED), forming Emergency-Care-Access-Points (ECAP). A more efficient and economical organization of out-of-hours primary emergency care could be realized by increased collaboration at an ECAP. In this study, we compared the effects of different models with respect to access to (hospital) radiology by the GPC. We investigated patient and care characteristics, indication for diagnostics and outcomes at GPCs with and without access to radiology. Methods: A prospective observational record review study of patients referred for conventional radiology for trauma by one of five GPCs in the period April 2014-October 2015, covering three organizational models. Results: The mean age was 31 years and 56% was female. Extremities were predominately involved (91%). There was a medical indication for radiology in 85% and the assessed risk by requesting GPs on abnormalities was high in 66%. There was a significant difference in outcomes between models. Radiological abnormalities (fractures/luxations) were present in 51% without direct access and in 35% with partial and unlimited access. Overall, 61% of the included patients were referred to the ED; 100% in the models without access and 38% in the models with (partial) access. Conclusions: GPC access to radiology is beneficial for patients and professionals. The diagnostics were adequately used. With access to radiology, unnecessary referrals and specialist care are prevented. This may lead to a decrease in ED attendance and overcrowding. PMID- 29029062 TI - Multicentric evaluation of the impact of central tumour location when comparing rates of N1 upstaging in patients undergoing video-assisted and open surgery for clinical Stage I non-small-cell lung cancer. AB - OBJECTIVES: Large retrospective series have indicated lower rates of cN0 to pN1 nodal upstaging after video-assisted thoracic surgery (VATS) compared with open resections for Stage I non-small-cell lung cancer (NSCLC). The objective of our multicentre study was to investigate whether the presumed lower rate of N1 upstaging after VATS disappears after correction for central tumour location in a multivariable analysis. METHODS: Consecutive patients operated for PET-CT based clinical Stage I NSCLC were selected from prospectively managed surgical databases in 11 European centres. Central tumour location was defined as contact with bronchovascular structures on computer tomography and/or visibility on standard bronchoscopy. RESULTS: Eight hundred and ninety-five patients underwent pulmonary resection by VATS (n = 699, 9% conversions) or an open technique (n = 196) in 2014. Incidence of nodal pN1 and pN2 upstaging was 8% and 7% after VATS and 15% and 6% after open surgery, respectively. pN1 was found in 27% of patients with central tumours. Less central tumours were operated on by VATS compared with the open technique (12% vs 28%, P < 0.001). Logistic regression analysis showed that only tumour location had a significant impact on N1 upstaging (OR 6.2, confidence interval 3.6-10.8; P < 0.001) and that the effect of surgical technique (VATS versus open surgery) was no longer significant when accounting for tumour location. CONCLUSIONS: A quarter of patients with central clinical Stage I NSCLC was upstaged to pN1 at resection. Central tumour location was the only independent factor associated with N1 upstaging, undermining the evidence for lower N1 upstaging after VATS resections. Studies investigating N1 upstaging after VATS compared with open surgery should be interpreted with caution due to possible selection bias, i.e. relatively more central tumours in the open group with a higher chance of N1 upstaging. PMID- 29029063 TI - Impact of Pneumococcal Vaccination on Pneumonia Hospitalizations and Related Costs in Ontario: A Population-Based Ecological Study. AB - Background: In Ontario, Canada, pneumococcal conjugate vaccine (PCV) was approved for infants in 2001 and became part of the publicly funded routine immunization schedule in 2005. We assessed the population-level impact of PCV on pneumonia hospitalizations and related costs. Methods: We used the difference-in differences approach to evaluate the impact of pneumococcal vaccination on pneumonia hospitalizations and related costs, using nonpneumonia hospitalization as the control condition. We extracted monthly hospitalization costs, stratified by age group, from population-based health administrative data between April 1992 and March 2014. The study period was divided into 5 intervals: prevaccine period, availability of 7-valent PCV (PCV7) for private purchase, public funding for PCV7, replacement of PCV7 with 10-valent PCV (PCV10), and replacement of PCV10 with 13-valent PCV (PCV13). Results: A total of 1063700 pneumonia hospitalizations were recorded during the study period. In the vaccine-eligible age group, pneumonia hospitalizations declined by 34% (95% confidence interval, 32%-37%), 38% (32%-43%), and 45% (40%-51%) and hospitalization-related costs declined by 38% (25%-51%), 39% (33%-45%), and 46% (41%-52%) after public funding for PCV7, PCV10, and PCV13, respectively. Pneumonia hospitalizations and related costs also declined substantially for PCV-ineligible older children and elderly persons (aged >65 years). Conclusions: Our results suggest that the publicly funded PCV immunization program is responsible for substantial reductions in pneumonia hospitalizations and related healthcare costs, among both young children eligible for publicly funded vaccination and other age groups not included in the publicly funded program. PMID- 29029065 TI - Emergence of Escherichia coli co-producing NDM-1 and KPC-2 carbapenemases from a retail vegetable, China. PMID- 29029064 TI - 2015-2016 Vaccine Effectiveness of Live Attenuated and Inactivated Influenza Vaccines in Children in the United States. AB - Background: In the 2015-2016 season, quadrivalent live attenuated influenza vaccine (LAIV) and both trivalent and quadrivalent inactivated influenza vaccine (IIV) were available in the United States. Methods: This study, conducted according to a test-negative case-control design, enrolled children aged 2-17 years presenting to outpatient settings with fever and respiratory symptoms for <5 days at 8 sites across the United States between 30 November 2015 and 15 April 2016. A nasal swab was obtained for reverse-transcriptase polymerase chain reaction (RT-PCR) testing for influenza, and influenza vaccination was verified in the medical record or vaccine registry. Influenza vaccine effectiveness (VE) was estimated using a logistic regression model. Results: Of 1012 children retained for analysis, most children (59%) were unvaccinated, 10% received LAIV, and 31% received IIV. Influenza A (predominantly antigenically similar to the A/California/7/2009 strain) was detected in 14% and influenza B (predominantly a B/Victoria lineage) in 10%. For all influenza, VE was 46% (95% confidence interval [CI], 7%-69%) for LAIV and 65% (48%-76%) for IIV. VE against influenza A(H1N1)pdm09 was 50% (95% CI, -2% to 75%) for LAIV and 71% (51%-82%) for IIV. The odds ratio for vaccine failure with RT-PCR-confirmed A(H1N1)pdm09 was 1.71 (95% CI, 0.78-3.73) in LAIV versus IIV recipients. Conclusions: LAIV and IIV demonstrated effectiveness against any influenza among children aged 2-17 years in 2015-2016. When compared to all unvaccinated children, VE against influenza A(H1N1)pdm09 was significant for IIV but not LAIV. Clinical Trials Registration: NCT01997450. PMID- 29029066 TI - National disparities in the relationship between antimicrobial resistance and antimicrobial consumption in Europe: an observational study in 29 countries authors' response. PMID- 29029067 TI - Pharmacodynamics of fosfomycin against ESBL- and/or carbapenemase-producing Enterobacteriaceae. AB - Background: The increase in antibiotic resistance in Gram-negative bacteria and the limited therapeutic options due to the shortage of new antibiotics have increased the interest of the 'old' antibiotic fosfomycin in the treatment of infections. However, there are contradictory reports on the pharmacodynamics of and emergence of resistance to fosfomycin. Methods: Time-kill assays were performed with 11 ESBL-positive and 3 ESBL-negative strains, exposing the bacteria to 2-fold static concentrations from 0.125* to 32* MIC. The sigmoid maximum effect (Emax) model was fitted to the time-kill curve data. Amplification of resistance over time was evaluated under various conditions of selective pressure by plating on 16* MIC plates. Results: Fosfomycin was bactericidal for all strains within 8 h. Using the Emax model, no significant differences between strains were observed for the pharmacodynamic parameters. However, the large variation in Hill slope factors for Escherichia coli of 0.87 up to 4.02 indicates that the killing behaviour appears to be more time dependent for some strains but concentration dependent for others. In the fosfomycin-exposed cultures under low and high selective pressure (>=2* MIC) the median resistance proportions between the resistant and total population increased from <=2 * 10-6 (T = 0 h) to 0.652 0.899 (T = 24 h). Resistance appeared stable after repeated subculturing. Conclusions: Killing behaviour of fosfomycin does not only differ between species but also within species and may have an impact on the design of optimal dosing regimens. Although fosfomycin was bactericidal against all strains (re)growth of resistant subpopulations occurred relatively fast. This may limit the use of fosfomycin as a single drug therapy. PMID- 29029069 TI - Molting Site Fidelity in Workers of Formosan Subterranean Termites (Isoptera: Rhinotermitidae). AB - Spatial assessment of molting in workers of Coptotermes formosanus Shiraki was conducted in laboratory-reared colonies using extended foraging arenas. Workers at a premolt stage were found concentrated in the nest or in a planar arena near the nest. However, molting individuals were found exclusively in the central nest and they stayed inside or near the central nest for at least 36 h postmolting. The absence of premolt workers at foraging sites suggests that the workers have an affinity to the nest for molting and the second study on nest-fidelity evaluation suggested that the workers molt in the proximity of eggs. The molting site fidelity by workers in a colony ensures that speeding up the time for mortality induced by chitin synthesis inhibitor (CSI) baits will not result in an inhibitory cascade of dead termites around the bait stations. Thus, speeding up the elimination of a C. formosanus colony using CSI baits with the addition of molt-accelerating compounds will not lead to secondary repellency. Reasons for the molting-site fidelity amongst workers in a colony are discussed. PMID- 29029068 TI - Considering health equity when moving from evidence-based guideline recommendations to implementation: a case study from an upper-middle income country on the GRADE approach. AB - The availability of evidence-based guidelines does not ensure their implementation and use in clinical practice or policy making. Inequities in health have been defined as those inequalities within or between populations that are avoidable, unnecessary and also unjust and unfair. Evidence-based clinical practice and public health guidelines ('guidelines') can be used to target health inequities experienced by disadvantaged populations, although guidelines may unintentionally increase health inequities. For this reason, there is a need for evidence-based clinical practice and public health guidelines to intentionally target health inequities experienced by disadvantaged populations. Current guideline development processes do not include steps for planned implementation of equity-focused guidelines. This article describes nine steps that provide guidance for consideration of equity during guideline implementation. A critical appraisal of the literature followed by a process to build expert consensus was undertaken to define how to include consideration of equity issues during the specific GRADE guideline development process. Using a case study from Colombia we describe nine steps that were used to implement equity-focused GRADE recommendations: (1) identification of disadvantaged groups, (2) quantification of current health inequities, (3) development of equity-sensitive recommendations, (4) identification of key actors for implementation of equity focused recommendations, (5) identification of barriers and facilitators to the implementation of equity-focused recommendations, (6) development of an equity strategy to be included in the implementation plan, (7) assessment of resources and incentives, (8) development of a communication strategy to support an equity focus and (9) development of monitoring and evaluation strategies. This case study can be used as model for implementing clinical practice guidelines, taking into account equity issues during guideline development and implementation. PMID- 29029070 TI - Development and validation of an LC tandem MS assay for the quantification of beta-lactam antibiotics in the sputum of cystic fibrosis patients. AB - Objectives: Antibiotic therapy is of vital importance for the control of infectious exacerbations in cystic fibrosis (CF) patients. However, very little is known regarding the fraction of systemically administered antibiotics reaching the lower respiratory tract secretions. We developed and validated a method to measure the concentrations of piperacillin, ceftazidime, meropenem and aztreonam in CF sputum, and present the validation data. Methods: Ultra-performance LC coupled to tandem MS was used. A single sample can be measured in 2.5 min with multiple reaction monitoring in positive electrospray ionization mode. Deuterated internal standards were used and a concentration range of 0.7-160 mg/L was covered. The method was validated according to the EMA guideline on analytical method validation. Results: The boundaries within which a reliable measurement in CF sputum can be performed were determined. A few constraints are linked to the instability of the antibiotics in sputum. Piperacillin showed limited stability at room temperature and during freeze-thaw cycles. Autosampler instability was observed after 15 h for aztreonam at low concentrations. Conclusions: The method allows a reliable measurement of the selected antibiotics, if precautions are taken regarding the limited stability of piperacillin at room temperature. Due to freeze-thaw instability, piperacillin should always be analysed on the day of sampling. Quick review of the analytical data and reanalysis are needed as low concentrations of aztreonam are not stable in the autosampler. PMID- 29029071 TI - Visual Cortex Limits Pop-Out in the Superior Colliculus of Awake Mice. AB - We detect objects more readily if they differ from their surroundings in motion, color, or texture. This increased saliency is thought to be related to increased responses in the visual cortex. The superior colliculus is another brain area involved in vision and especially in directing gaze and attention. In this study, we show that differences in texture orientation also increase responses in the superficial layers of the superior colliculus that receive retinal and cortical input. We found that gratings evoke more neural response when surrounded by orthogonal gratings than when surrounded by parallel gratings, particularly in the awake mouse. This pop-out is not originating from the visual cortex, and silencing visual cortex increased the relative difference in response. A model shows that this can result from retinotopically matched excitation from visual cortex to the superior colliculus. We suggest that the perceptual saliency of a stimulus differing from its surround in a low-level feature like grating orientation could depend on visual processing in the superior colliculus. PMID- 29029072 TI - Detection of optrA in the African continent (Tunisia) within a mosaic Enterococcus faecalis plasmid from urban wastewaters. AB - Objectives: Oxazolidinone resistance is a serious limitation in the treatment of MDR Enterococcus infections. Plasmid-mediated oxazolidinone resistance has been strongly linked to animals where the use of phenicols might co-select resistance to both antibiotic families. Our goal was to assess the diversity of genes conferring phenicol/oxazolidinone resistance among diverse enterococci and to characterize the optrA genetic environment. Methods: Chloramphenicol-resistant isolates (>16 mg/L, n = 245) from different sources (hospitals/healthy humans/wastewaters/animals) in Portugal, Angola and Tunisia (1996-2016) were selected. Phenicol (eight cat variants, fexA, fexB) or phenicol + oxazolidinone [cfr, cfr(B), optrA] resistance genes were searched for by PCR. Susceptibility (disc diffusion/microdilution), filter mating, stability of antibiotic resistance (500 bacterial generations), plasmid typing (S1-PFGE/hybridization), MLST and WGS (Illumina-HiSeq) were performed for optrA-positive isolates. Results: Resistance to phenicols (n = 181, 74%) and phenicols + oxazolidinones (n = 2, 1%) was associated with the presence of cat(A-8) (40%, predominant in hospitals and swine), cat(A-7) (29%, predominant in poultry and healthy humans), cat(A-9) (2%), fexB (2%) and fexA + optrA (1%). fexA and optrA genes were co-located in a transferable plasmid (pAF379, 72 918 bp) of two ST86 MDR Tunisian Enterococcus faecalis (wastewaters) carrying several putative virulence genes. MICs of chloramphenicol, linezolid and tedizolid were stably maintained at 64, 4 and 1 mg/L, respectively. The chimeric pAF379 comprised relics of genetic elements from different Gram-positive bacteria and origins (human/porcine). Conclusions: To the best of our knowledge, we report the first detection of optrA in an African country (Tunisia) within a transferable mosaic plasmid of different origins. Its identification in isolates from environmental sources is worrisome and alerts for the need of a concerted global surveillance on the occurrence and spread of optrA. PMID- 29029074 TI - Multimodality imaging evaluation of Chagas disease: an expert consensus of Brazilian Cardiovascular Imaging Department (DIC) and the European Association of Cardiovascular Imaging (EACVI). AB - Aims: To develop a document by Brazilian Cardiovascular Imaging Department (DIC) and the European Association of Cardiovascular Imaging (EACVI) to review and summarize the most recent evidences about the non-invasive assessment of patients with Chagas disease, with the intent to set up a framework for standardized cardiovascular imaging to assess cardiovascular morphologic and functional disturbances, as well as to guide the subsequent process of clinical decision making. Methods and results: Chagas disease remains one of the most prevalent infectious diseases in Latin America, and has become a health problem in non endemic countries. Dilated cardiomyopathy is the most severe manifestation of Chagas disease, which causes substantial disability and early mortality in the socially most productive population leading to a significant economical burden. Prompt and correct diagnosis of Chagas disease requires specialized clinical expertise to recognize the unique features of this disease. The appropriate and efficient use of cardiac imaging is pivotal for diagnosing the cardiac involvement in Chagas disease, to stage the disease, assess patients' prognosis and address management. Echocardiography is the most common imaging modality used to assess, and follow-up patients with Chagas disease. The presence of echocardiographic abnormalities is of utmost importance, since it allows to stage patients according to disease progression. In early stages of cardiac involvement, echocardiography may demonstrate segmental left ventricuar wall motion abnormalities, mainly in the basal segments of inferior, inferolateral walls, and the apex, which cannot be attributed to obstructive coronary artery arteries. The prevalence of segmental wall motion abnormalities varies according to the stage of the disease, reaching about 50% in patients with left ventricular dilatation and dysfunction. Speckle tracking echocardiography allows a more precise and quantitative measurement of the regional myocardial function. Since segmental wall motion abnormalities are frequent in Chagas disease, speckle tracking echocardiography may have an important clinical application in these patients, particularly in the indeterminate forms when abnormalities are more subtle. Speckle tracking echocardiography can also quantify the heterogeneity of systolic contraction, which is associated with the risk of arrhythmic events. Three-dimensional (3D) echocardiography is superior to conventional two dimensional (2D) echocardiography for assessing more accurately the left ventricular apex and thus to detect apical aneurysms and thrombus in patients in whom ventricular foreshortening is suspected by 2D echocardiography. In addition, 3D echocardiography is more accurate than 2D Simpson s biplane rule for assessing left ventricular volumes and function in patients with significant wall motion abnormalities, including aneurysms with distorted ventricular geometry. Contrast echocardiography has the advantage to enhancement of left ventricular endocardial border, allowing for more accurate detection of ventricular aneurysms and thrombus in Chagas disease. Diastolic dysfunction is an important hallmark of Chagas disease even in its early phases. In general, left ventricular diastolic and systolic dysfunction coexist and isolated diastolic dysfunction is uncommon but may be present in patients with the indeterminate form. Right ventricular dysfunction may be detected early in the disease course, but in general, the clinical manifestations occur late at advanced stages of Chagas cardiomyopathy. Several echocardiographic parameters have been used to assess right ventricular function in Chagas disease, including qualitative evaluation, myocardial performance index, tissue Doppler imaging, tricuspid annular plane systolic excursion, and speckle tracking strain. Cardiac magnetic resonance (CMR) is useful to assess global and regional left ventricular function in patients with Chagas diseases. Myocardial fibrosis is a striking feature of Chagas cardiomyopathy and late gadolinium enhancement (LGE) is used to detect and quantify the extension of myocardial fibrosis. Myocardial fibrosis might have a role in risk stratification of patients with Chagas disease. Limited data are available regarding right ventricular function assessed by CMR in Chagas disease. Radionuclide ventriculography is used for global biventricular function assessment in patients with suspected or definite cardiac involvement in Chagas disease with suboptimal acoustic window and contraindication to CMR. Myocardial perfusion scintigraphy may improve risk stratification to define cardiac involvement in Chagas disease, especially in the patients with devices who cannot be submitted to CMR and in the clinical setting of Chagas patients whose main complaint is atypical chest pain. Detection of reversible ischemic defects predicts further deterioration of left ventricular systolic function and helps to avoid unnecessary cardiac catheterization and coronary angiography. Conclusion: Cardiac imaging is crucial to detect the cardiac involvement in patients with Chagas disease, stage the disease and stratify patient risk and address management. Unfortunately, most patients live in regions with limited access to imaging methods and point-of-care, simplified protocols, could improve the access of these remote populations to important information that could impact in the clinical management of the disease. Therefore, there are many fields for further research in cardiac imaging in Chagas disease. How to better provide an earlier diagnosis of cardiac involvement and improve patients risk stratification remains to be addressed using different images modalities. PMID- 29029073 TI - Clinical genetics and outcome of left ventricular non-compaction cardiomyopathy. AB - Aims: In this study, we aimed to clinically and genetically characterize LVNC patients and investigate the prevalence of variants in known and novel LVNC disease genes. Introduction: Left ventricular non-compaction cardiomyopathy (LVNC) is an increasingly recognized cause of heart failure, arrhythmia, thromboembolism, and sudden cardiac death. We sought here to dissect its genetic causes, phenotypic presentation and outcome. Methods and results: In our registry with follow-up of in the median 61 months, we analysed 95 LVNC patients (68 unrelated index patients and 27 affected relatives; definite familial LVNC = 23.5%) by cardiac phenotyping, molecular biomarkers and exome sequencing. Cardiovascular events were significantly more frequent in LVNC patients compared with an age-matched group of patients with non-ischaemic dilated cardiomyopathy (hazard ratio = 2.481, P = 0.002). Stringent genetic classification according to ACMG guidelines revealed that TTN, LMNA, and MYBPC3 are the most prevalent disease genes (13 patients are carrying a pathogenic truncating TTN variant, odds ratio = 40.7, Confidence interval = 21.6-76.6, P < 0.0001, percent spliced in 76 100%). We also identified novel candidate genes for LVNC. For RBM20, we were able to perform detailed familial, molecular and functional studies. We show that the novel variant p.R634L in the RS domain of RBM20 co-segregates with LVNC, leading to titin mis-splicing as revealed by RNA sequencing of heart tissue in mutation carriers, protein analysis, and functional splice-reporter assays. Conclusion: Our data demonstrate that the clinical course of symptomatic LVNC can be severe. The identified pathogenic variants and distribution of disease genes-a titin related pathomechanism is found in every fourth patient-should be considered in genetic counselling of patients. Pathogenic variants in the nuclear proteins Lamin A/C and RBM20 were associated with worse outcome. PMID- 29029075 TI - Improving health systems performance in low- and middle-income countries: a system dynamics model of the pay-for-performance initiative in Afghanistan. AB - System dynamics methods were used to explore effective implementation pathways for improving health systems performance through pay-for-performance (P4P) schemes. A causal loop diagram was developed to delineate primary causal relationships for service delivery within primary health facilities. A quantitative stock-and-flow model was developed next. The stock-and-flow model was then used to simulate the impact of various P4P implementation scenarios on quality and volume of services. Data from the Afghanistan national facility survey in 2012 was used to calibrate the model. The models show that P4P bonuses could increase health workers' motivation leading to higher levels of quality and volume of services. Gaming could reduce or even reverse this desired effect, leading to levels of quality and volume of services that are below baseline levels. Implementation issues, such as delays in the disbursement of P4P bonuses and low levels of P4P bonuses, also reduce the desired effect of P4P on quality and volume, but they do not cause the outputs to fall below baseline levels. Optimal effect of P4P on quality and volume of services is obtained when P4P bonuses are distributed per the health workers' contributions to the services that triggered the payments. Other distribution algorithms such as equal allocation or allocations proportionate to salaries resulted in quality and volume levels that were substantially lower, sometimes below baseline. The system dynamics models served to inform, with quantitative results, the theory of change underlying P4P intervention. Specific implementation strategies, such as prompt disbursement of adequate levels of performance bonus distributed per health workers' contribution to service, increase the likelihood of P4P success. Poorly designed P4P schemes, such as those without an optimal algorithm for distributing performance bonuses and adequate safeguards for gaming, can have a negative overall impact on health service delivery systems. PMID- 29029076 TI - Neoliberal Long-Term Care: From Community to Corporate Control. AB - Publicly (mainly Medicaid) funded long-term care (LTC) services have evolved from a nursing home dominated system of service to a much more balanced system including home- and community-based services (HCBS) programs over the last 30 years. The HCBS programs have been largely administered by the state and local level nonprofit aging networks (ANs) consisting of Area Agencies on Aging and thousands of service providers. Over the last decade, however, for-profit HMOs administered primarily by large insurance companies have begun to displace AN organizations. State policymakers have embraced for-profit privatizations under the rationale that this approach will generate greater savings, efficiencies, and higher quality outcomes than the traditional public or private nonprofit models of program administration. As we show here, there is very little evidence for this rationale; yet, this lack of evidence has not prevented the continuing growth of for-profit managed LTC programs supported more by an ideology of market fundamentalism than empirical evidence. We also describe six possible consequences of the trend toward corporate control of public LTC services in the years ahead. PMID- 29029077 TI - Association of Obesity, Diabetes, and Risk of Tuberculosis: Two Population-Based Cohorts. AB - Background: Mounting data have revealed that body mass index (BMI) is inversely associated with risk of active tuberculosis. The inverse association presents a "paradox" with regard to diabetes, because obesity is a major determinant of diabetes, and diabetes is a well-known risk factor for tuberculosis. Methods: We conducted 2 population-based cohort studies involving 167392 participants. The main exposure was BMI and diabetes ascertained at baseline. Occurrence of incident tuberculosis was ascertained from Taiwan's National Tuberculosis Registry. We conducted a causal mediation analysis and a joint effects analysis to characterize the relationship between BMI, diabetes, and tuberculosis. Results: During a median of >7 years of follow-up, 491 individuals developed incident tuberculosis. Compared with normal-weight individuals, obese individuals (>30 kg/m2) had a 67% (95% confidence interval [CI], -3% to -90%) and 64% (31% 81%) reduction in tuberculosis hazard in the 2 cohorts. In the causal mediation analysis, obesity had a harmful effect on tuberculosis mediated through diabetes (0.8% and 2.7% increased odds in the 2 cohorts, respectively) but had a strongly protective effect not mediated through diabetes (72% and 67% decreased odds, respectively). Individuals who were simultaneously obese and diabetic had a lower but statistically insignificant risk of tuberculosis (adjusted hazard ratio, 0.30; 95% CI, .08-1.22) compared with nondiabetic normal-weight individuals. Conclusions: Our analyses revealed that the relationship between obesity, diabetes, and risk of tuberculosis was complex and nonlinear. Better understanding of the interplay between host metabolism and tuberculosis immunology may lead to novel therapeutic or preventive strategies. PMID- 29029078 TI - Prebiotic potential of pectin and pectic oligosaccharides to promote anti inflammatory commensal bacteria in the human colon. AB - Dietary plant cell wall carbohydrates are important in modulating the composition and metabolism of the complex gut microbiota, which can impact on health. Pectin is a major component of plant cell walls. Based on studies in model systems and available bacterial isolates and genomes, the capacity to utilise pectins for growth is widespread among colonic Bacteroidetes but relatively uncommon among Firmicutes. One Firmicutes species promoted by pectin is Eubacterium eligens. Eubacterium eligens DSM3376 utilises apple pectin and encodes a broad repertoire of pectinolytic enzymes, including a highly abundant pectate lyase of around 200 kDa that is expressed constitutively. We confirmed that certain Faecalibacterium prausnitzii strains possess some ability to utilise apple pectin and report here that F. prausnitzii strains in common with E. eligens can utilise the galacturonide oligosaccharides DP4 and DP5 derived from sugar beet pectin. Faecalibacterium prausnitzii strains have been shown previously to exert anti inflammatory effects on host cells, but we show here for the first time that E. eligens strongly promotes the production of the anti-inflammatory cytokine IL-10 in in vitro cell-based assays. These findings suggest the potential to explore further the prebiotic potential of pectin and its derivatives to re-balance the microbiota towards an anti-inflammatory profile. PMID- 29029079 TI - Sialylation of extracellular superoxide dismutase (EC-SOD) enhances furin mediated cleavage and secretion. AB - Extracellular superoxide dismutase (EC-SOD, SOD3) protects tissues against oxidative damage by detoxifying superoxide anions, particularly in the lungs and cardiovascular system. EC-SOD undergoes several posttranslational modifications including N-glycosylation and proteolytic cleavage. While the roles of proteolytic cleavage have been well studied, the structure and function of EC-SOD N-glycans are poorly understood. Here we analyzed glycan structures on native EC SOD purified from human sera, and identified sialylated biantennary structures. Using glycan maturation-defective CHO mutant cells, we further revealed that the presence of terminal sialic acids in the N-glycans of EC-SOD enhanced both the secretion and furin-mediated C-terminal cleavage of EC-SOD. These results provide new insights into how the posttranslational modifications of EC-SOD control its functions. PMID- 29029080 TI - Recurrent purulent pericarditis secondary to a giant bronchogenic cyst. PMID- 29029081 TI - Rapid Cold-Hardening of a Subtropical Species, Maruca vitrata (Lepidoptera: Crambidae), Accompanies Hypertrehalosemia by Upregulating Trehalose-6-Phosphate Synthase. AB - A subtropical insect, Maruca vitrata (F.) (Lepidoptera: Crambidae), is invasive to temperate zones, in which low temperatures during winter would be a serious challenge for colonization. This study assessed cold tolerance and cold-hardening of M. vitrata to understand its overwintering mechanism. Supercooling capacity was confirmed in all developmental stages exhibiting body freezing points at lower than -10 degrees C, in which supercooling points (SCPs) were significantly different among developmental stages, with eggs having the lowest SCP (at -22.5 degrees C). However, all developmental stages suffered significant mortality after being exposed to low temperatures much higher than SCPs. Furthermore, nonfreezing injury increased with elapsed time at 25 degrees C after cold shock. One of the nonfreezing symptoms was a darkening on thorax, which was explained by uncontrolled prophenoloxidase activation. Pre-exposure to 8 degrees C for 1 h significantly increased the survival of both young and old larvae to a low temperature treatment (-5 degrees C for 1 h). Rapid cold-hardening (RCH) was accompanied by significant increase in hemolymph trehalose concentration. During RCH, trehalose-6-phosphate synthase was significantly upregulated in its expression level. These results suggest that M. vitrata is a freeze-susceptible species and becomes cold-hardy via hypertrehalosemia. PMID- 29029082 TI - Decreased Homocysteine Trans-Sulfuration in Hypertension With Hyperhomocysteinemia: Relationship With Insulin Resistance. AB - Context: Homocysteine is an independent cardiovascular risk factor and is elevated in essential hypertension. Insulin stimulates homocysteine catabolism in healthy individuals. However, the mechanisms of hyperhomocysteinemia and its relationship with insulin resistance in essential hypertension are unknown. Objective: To investigate whole body methionine and homocysteine kinetics and the effects of insulin in essential hypertension. Design and Setting: Eight hypertensive male subjects and six male normotensive controls were infused with l [methyl-2H3,1-13C]methionine for 6 hours. In the last 3 hours a euglycemic, hyperinsulinemic clamp was performed. Steady-state methionine and homocysteine kinetics were determined in postabsorptive and hyperinsulinemic conditions. Results: Postabsorptive hypertensive subjects had elevated homocysteine concentrations (+30%, P = 0.035) and slightly (by 15% to 20%) but insignificantly lower methionine rates of appearance (Ras) (P = 0.07 to P = 0.05) and utilization for protein synthesis (P = 0.06) than postabsorptive normotensive controls. Hyperinsulinemia suppressed methionine Ra and protein synthesis, whereas it increased homocysteine trans-sulfuration, clearance, and methionine transmethylation (the latter only in the normotensive subjects). However, in the hypertensive subjects trans-sulfuration was significantly lower (P < 0.05) and increased ~50% less [by +1.59 +/- 0.34 vs +3.45 +/- 0.52 umol/kg lean body mass (LBM) per hour, P < 0.005] than in normotensive controls. Homocysteine clearance through trans-sulfuration was ~50% lower in hypertensive than in normotensive subjects (P < 0.005). In the hypertensive subjects, insulin-mediated glucose disposal was ~45% lower (460 +/- 44 vs 792 +/- 67 mg/kg LBM per hour, P < 0.0005) than in normotensive controls and was positively correlated with the increase of trans-sulfuration (P < 0.0015). Conclusions: In subjects with essential hypertension, hyperhomocysteinemia is associated with decreased homocysteine trans-sulfuration and probably represents a feature of insulin resistance. PMID- 29029083 TI - Unravelling the genome of a Pseudomonas aeruginosa isolate belonging to the high risk clone ST235 reveals an integrative conjugative element housing a blaGES-6 carbapenemase. AB - Objectives: In Pseudomonas aeruginosa, the blaGES-6 carbapenemase gene was previously associated with an In1076 class I integron. Here, we conducted a genome-based analysis and explored the genetic platform associated with the mobility of this gene. Methods: WGS of a blaGES-6-harbouring P. aeruginosa isolate (FFUP_PS_690) was performed with Illumina HiSeq, de novo assembly was performed using SPAdes and subsequent bioinformatic analysis was performed concerning antibiotic resistance genes, virulence features and mobile genetic elements. Results: The FFUP_PS_690 isolate belongs to the ST235 high-risk clone and houses a novel integrative conjugative element (ICE), hereby named ICEPae690. This clc-like ICE comprises the blaGES-6-harbouring In1076 integron and specific modules. An ExoU island A variant was also identified. Conclusions: The presence of a 'hitch-hiking' blaGES-6-harbouring In1076 integron in an ICE and an exoU carrying genomic island highlight the potential spread of these elements through conjugation and/or clonal expansion of the ST235 lineage. PMID- 29029084 TI - Penicillin-binding protein encoded by pbp4 is involved in mediating copper stress in Listeria monocytogenes. AB - Listeria monocytogenes raises major food safety and public health concerns due to its potential for severe foodborne disease and persistent colonization of food processing facilities. Copper is often employed to control pathogens in agriculture and is increasingly used in healthcare facilities, but mechanisms mediating tolerance of L. monocytogenes to copper remain poorly understood. A mariner-based mutant library of L. monocytogenes 2011L-2858, implicated in the 2011 listeriosis outbreak via whole cantaloupe, was screened for growth at sublethal levels of copper yielding mutant G2B4 with decreased copper tolerance. The transposon was localized in pbp4 (lmo2229 homolog), encoding a penicillin binding protein (PBP). In addition to reduced copper tolerance, G2B4 exhibited increased susceptibility to beta-lactam antibiotics, reduced biofilm formation and reduced virulence in the Galleria mellonella model. Mutant phenotypes were fully restored upon genetic complementation of G2B4 with intact pbp4. Findings provide the first evidence for the role of a PBP in copper tolerance of L. monocytogenes and suggest that pbp4 may be a suitable target to enable the use of lower levels of copper or enhance the effectiveness of levels currently in use. Given the wide distribution of PBPs and their highly conserved nature, this could have profound impacts in regard to ecology and control of L. monocytogenes and other microorganisms. PMID- 29029085 TI - Impairment of elastic properties of the aorta in bicuspid aortic valve: relationship between biomolecular and aortic strain patterns. AB - Aims: Bicuspid aortic valve (BAV) is associated with aortic wall alterations. We aimed to detect any correlation between aortic elasticity and genetic and biomolecular patterns of elastin. Methods and results: Forty-nine BAV patients (mean age: 38 +/- 17.05) were prospectively enrolled. A blood sample was drawn for analysis of a single nucleotide polymorphism of elastin gene (ELN rs2071307) responsible for misfolding of elastin, and for the amount of elastin soluble fragments (ESF) in the plasma. Aortic dimensions and elastic properties were determined by echocardiography, aortic stiffness (AS) by M-mode analysis, and longitudinal strain (LS) of the ascending aorta (AA) by speckle-tracking echocardiography; values of aortic strain were compared with 45 age-matched subjects (mean age: 33 +/- 9.67) with tricuspid aortic valve (TAV). BAV patients had greater aortic dimensions [Valsalva sinus (P = 0.004), sinotubular junction (P = 0.013), AA (P < 0.001)] and stiffness (P = 0.002) but lower LS (P = 0.04) than those with TAV. Results from comparisons of mutated genotype patients (AA, n = 10) with heterozygous (GA, n = 21) and wild-types ones (GG, n = 16) revealed that the presence of mutation was associated with increased ESF (P = 0.010 GG vs. GA; P = 0.035 GA vs. AA), larger AA (P = 0.019 GG vs. GA; P = 0.001 GG vs. AA), and lower LS (P = 0.032 GG vs. AA). Patients with a dilated AA showed greater ESF (P < 0.001), greater AS (P = 0.007), and lower LS of the AA (P = 0.002) than those with a normal AA. The same parameters were not significantly different comparing patients with moderate or severe aortic valve disease and patients with less than moderate valve disease. Conclusions: Our results show a close correlation between genetic and biomolecular patterns of elastin and mechanical properties of the aorta in patients with BAV. PMID- 29029086 TI - HIV prevention costs and their predictors: evidence from the ORPHEA Project in Kenya. AB - We estimate costs and their predictors for three HIV prevention interventions in Kenya: HIV testing and counselling (HTC), prevention of mother-to-child transmission (PMTCT) and voluntary medical male circumcision (VMMC). As part of the 'Optimizing the Response of Prevention: HIV Efficiency in Africa' (ORPHEA) project, we collected retrospective data from government and non-governmental health facilities for 2011-12. We used multi-stage sampling to determine a sample of health facilities by type, ownership, size and interventions offered totalling 144 sites in 78 health facilities in 33 districts across Kenya. Data sources included key informants, registers and time-motion observation methods. Total costs of production were computed using both quantity and unit price of each input. Average cost was estimated by dividing total cost per intervention by number of clients accessing the intervention. Multivariate regression methods were used to analyse predictors of log-transformed average costs. Average costs were $7 and $79 per HTC and PMTCT client tested, respectively; and $66 per VMMC procedure. Results show evidence of economies of scale for PMTCT and VMMC: increasing the number of clients per year by 100% was associated with cost reductions of 50% for PMTCT, and 45% for VMMC. Task shifting was associated with reduced costs for both PMTCT (59%) and VMMC (54%). Costs in hospitals were higher for PMTCT (56%) in comparison to non-hospitals. Facilities that performed testing based on risk factors as opposed to universal screening had higher HTC average costs (79%). Lower VMMC costs were associated with availability of male reproductive health services (59%) and presence of community advisory board (52%). Aside from increasing production scale, HIV prevention costs may be contained by using task shifting, non-hospital sites, service integration and community supervision. PMID- 29029088 TI - Plant-Herbivore and Plant-Pollinator Interactions of the Developing Perennial Oilseed Crop, Silphium integrifolium. AB - Sampling in Kansas and North Dakota documented the plant-herbivore and plant pollinator interactions of the developing perennial oilseed crop, Silphium integrifolium Michx. The larva of the tortricid moth, Eucosma giganteana (Riley), was the most damaging floret- and seed-feeding pest in Kansas, with infested heads producing ~85% (2015) or ~45% (2016) fewer seeds than apparently undamaged heads. Necrosis of apical meristems caused stunting and delayed bloom in Kansas; though the source of the necrosis is not known, observations of the tarnished plant bug, Lygus lineolaris (Palisot de Beauvois; Hemiptera: Miridae), in S. integrifolium terminals suggest a possible cause. In North Dakota, E. giganteana larvae were not found, but pupae of Neotephritis finalis (Loew; Diptera: Tephritidae), a minor pest of cultivated sunflower, were common in the heads of S. integrifolium. Bees appeared highly attracted to S. integrifolium, and in all but one observation, bees were seen actively collecting pollen. The most common bees included large apids (Apis mellifera L., Svastra obliqua [Say], Melissodes spp.) and small-bodied halictids (Lasioglossum [Dialictus] spp.). Controlled pollination experiments demonstrated that S. integrifolium is pollinator dependent, due to both mechanical barriers (imperfect florets and protogyny) and genetic self-incompatibility. Subsequent greenhouse tests and AFLP confirmation of putative self-progeny show that a low (<1%) level of self-pollination is possible. If genetic self-incompatibility is eventually reduced through breeding, mechanical barriers would maintain a reliance on bees to move pollen between male and female florets. Collectively, observations on S. integrifolium show that both herbivore and pollinator management are important to maximize seed production. PMID- 29029089 TI - Geostatistics and Geographic Information System to Analyze the Spatial Distribution of the Diversity of Anastrepha Species (Diptera: Tephritidae): the Effect of Forest Fragments in an Urban Area. AB - Fruit flies are among the most damaging insect pests of commercial fruit in Brazil. It is important to understand the landscape elements that may favor these flies. In the present study, spatial data from surveys of species of Anastrepha Schiner (Diptera: Tephritidae) in an urban area with forest fragments were analyzed, using geostatistics and Geographic Information System (GIS) to map the diversity of insects and evaluate how the forest fragments drive the spatial patterns. The results indicated a high diversity of species associated with large fragments, and a trend toward lower diversity in the more urbanized area, as the fragment sizes decreased. We concluded that the diversity of Anastrepha species is directly and positively related to large and continuous forest fragments in urbanized areas, and that combining geostatistics and GIS is a promising method for use in insect-pest management and sampling involving fruit flies. PMID- 29029087 TI - The effect of sacubitril/valsartan compared to olmesartan on cardiovascular remodelling in subjects with essential hypertension: the results of a randomized, double-blind, active-controlled study. AB - Aims: Progressive aortic stiffening eventually leads to left ventricular (LV) hypertrophy and heart failure if left untreated. Anti-hypertensive agents have been shown to reverse this to some extent. The effects of sacubitril/valsartan (LCZ696), a dual-action angiotensin receptor blocker (ARB), and neprilysin inhibitor, on arterial stiffness and LV remodelling have not been investigated. Methods and results: This was a randomized, multi-centre, double-blind, double dummy, active-controlled, parallel group, study to compare the effects on cardiovascular remodelling of sacubitril/valsartan with those of olmesartan in patients with hypertension and elevated pulse pressure. Magnetic resonance imaging scans were used to assess LV mass and local aortic distensibility, at baseline and at 12 and 52 weeks after initiation of treatment. Central pulse and systolic pressure were determined using a SphymoCor(r) XCEL device at each time point. A total of 114 patients were included, with 57 in each treatment group. The mean age was 59.8 years, and 67.5% were male. Demographic characteristics did not vary between the two sets of patients. Left ventricular mass index decreased to a greater extent in the sacubitril/valsartan group compared to the olmesartan group from baseline to 12 weeks (-6.36 vs. -2.32 g/m2; P = 0.039) and from baseline to 52 weeks (-6.83 vs. -3.55 g/m2; P = 0.029). These differences remained significant after adjustment for systolic blood pressure (SBP) at follow up (P = 0.036 and 0.019 at 12 and 52 weeks, respectively) and similar signals (though formally non-significant) were observed after adjusting for changes in SBP (P = 0.0612 and P = 0.0529, respectively). There were no significant differences in local distensibility changes from baseline to 12 or 52 weeks between the two groups; however, there was a larger reduction in central pulse pressure for the sacubitril/valsartan group compared to the olmesartan group (P = 0.010). Conclusion: Since LV mass change correlates with cardiovascular prognosis, the greater reductions in LV mass indicate valuable advantages of sacubitril/valsartan compared to olmesartan. The finding that LV mass index decrease might be to some extent independent of SBP suggests that the effect of the dual-acting agent may go beyond those due to its BP-lowering ability. PMID- 29029090 TI - Comparative Toxicities of Newer and Conventional Insecticides: Against Four Generalist Predator Species. AB - Generalist insect predators play an essential role in regulating the populations of Bemisia tabaci and other pests in agricultural systems, but may be affected negatively by insecticides applied for pest management. Evaluation of insecticide compatibility with specific predator species can provide a basis for making treatment decisions with the aim of conserving natural enemies. Eleven insecticides representing six modes of action groups were evaluated for toxicity against four predator species and at different developmental stages. Full concentration series bioassays were conducted on laboratory-reared or insectary supplied predators using Petri dish and systemic uptake bioassay techniques. Highest toxicities were observed with imidacloprid and clothianidin against first and second instar nymphs of Geocoris punctipes (Say) (Hemiptera: Geocoridae). Later instar nymphs were less susceptible to neonicotinoid treatments based on higher LC50s observed with imidacloprid, thiamethoxam, and dinotefuran against third or fourth instar nymphs. The pyrethroid insecticide bifenthrin was highly toxic against adults of G. punctipes and Orius insidiosus (Say) (Hemiptera: Anthocoridae). Standard concentration/mortality evaluation of nonacute toxicity insecticides, including buprofezin, pyriproxyfen, spirotetramat, and spiromesifen, was inconclusive in terms of generating probit statistics. However, low mortality levels of insects exposed for up to 120 h suggested minimal lethality with the exception of pyriproxyfen that was mildly toxic to Chrysoperla rufilabris (Burmeister) (Neuroptera: Chrysopidae). PMID- 29029092 TI - CORRIGENDUM FOR "Dapagliflozin Lowers Plasma Glucose Concentration and Improves beta-Cell Function". PMID- 29029091 TI - Cockroach Oothecal Parasitoid, Evania appendigaster (Hymenoptera: Evaniidae) Exhibits Oviposition Preference Towards Oothecal Age Most Vulnerable to Host Cannibalism. AB - Many female parasitoid wasps optimize host selection to balance the benefits of high-quality hosts and the costs of predator- or hyperparasitoid-induced mortality risks to maximize their fitness. Cannibalism exists in many insect species and affects survival of parasitoid larvae developing in or on parasitized hosts. However, little is known about how parasitoid wasps resolve the fitness consequence of host cannibalism-induced mortality risk during host selection. We examined the effect of oothecal age on cannibalism in the American cockroach Periplaneta americana (L.) (Dictyoptera: Blattidae) and its effect on host age selection and fitness of its oothecal parasitoid Evania appendigaster (L.) (Hymenoptera: Evaniidae). P. americana differentially cannibalized 1-d-old (30 60%) versus 10- to 40-d-old oothecae (<9%). However, parasitoid females did not avoid but still preferred to parasitize 1-d-old (45%) over 10- to 40-d-old oothecae (1.6-20%). The parasitism rate was greater and the handling time was shorter on 1-d-old compared to older oothecae. For parasitoid progeny emerging from different-aged oothecae, regression analysis showed that development time increased and body size (measured as hind tibia length) and longevity decreased with oothecal age. These results demonstrate that reduced parasitoid progeny survival due to host cannibalism did not change the parasitoid's oviposition preference for newly laid oothecae, and that E. appendigaster females traded progeny survival for fitness gains for themselves and their progeny. PMID- 29029093 TI - Electronegative Low-Density Lipoprotein L5 Induces Adipose Tissue Inflammation Associated With Metabolic Syndrome. AB - Context: Electronegative low-density lipoprotein (LDL) L5 is a naturally occurring, atherogenic entity found at elevated levels in the plasma of patients with metabolic syndrome (MetS) in the absence of elevated plasma LDL levels. Objective: To investigate the role of L5 in the mechanism of adipose tissue inflammation associated with MetS. Patients/Setting: Plasma LDL isolated from patients with MetS (n = 29) and controls (n = 29) with similar plasma LDL levels was separated into five subfractions, L1 to L5, with increasing electronegativity. Design: We examined the invivo effects of L5 on adipose tissue in mice and the in vitro effects of L5 on adipocytokine signaling and monocytes. Results: Tail-vein injection of human L5 but not L1 into C57BL/6 mice induced the accumulation of F4/80+ and CD11c+ M1 macrophages. The effects of L5 were attenuated in mice deficient for L5's receptor, lectin-like oxidized LDL receptor 1 (LOX-1). L5 but not L1 induced human adipocytes to release inflammatory adipocytokines. Incubating human THP-1 monocytes with LDL-free culture media from L5-treated adipocytes enhanced the migration of monocytes by 300-fold (P < 0.001 vs L1-treated adipocyte media)-effects that were attenuated by LOX-1 neutralizing antibody. Migrated cells were positive for mature macrophage marker PM-2K, indicating the transformation of monocytes into macrophages. The infiltration of M1 macrophages in adipose tissue was also observed in a previously established hamster model of endogenously elevated L5. Conclusions: L5 induces adipose inflammation through LOX-1 by promoting macrophage maturation and infiltration into adipose tissue. Elevated plasma L5 levels may be a novel etiology of adipose tissue inflammation in patients with MetS. PMID- 29029094 TI - Thyroid Hormone Metabolism Defects in a Mouse Model of SBP2 Deficiency. AB - Selenocysteine insertion sequence binding protein 2 (SBP2) is an essential factor in selenoprotein synthesis. Patients with SBP2 defects have a characteristic thyroid phenotype and additional manifestations such as growth delay, male infertility, impaired motor coordination, and developmental delay. The thyroid phenotype has become pathognomonic for this defect, and putative deficiencies in the iodothyronine deiodinases selenoenzymes have been implicated. To investigate the role of SBP2 and selenoproteins in thyroid physiology and answer questions raised by the human syndrome, we generated a tamoxifen-inducible Sbp2 conditional knockout (iCKO) mouse model. These Sbp2-deficient mice have high serum thyroxine (T4), thyrotropin, and reverse triiodothyronine (T3), similar to the human phenotype of SBP2 deficiency, whereas serum T3 is normal. Their liver T4 and T3 content reflect the serum levels, and deiodinase 1 expression and enzymatic activity were decreased. In contrast, brain T3 content is decreased, indicative of local hypothyroidism, confirmed by the decreased expression of the thyroid hormone (TH) positively regulated gene hairless. Interestingly, the cerebrum T4 content did not parallel the high serum T4 levels, and the expression of TH transporters was decreased. Deiodinase 2 enzymatic activity and deiodinase 3 expression were decreased in cerebrum. The expression and/or activity of other selenoproteins were decreased in brain, liver, and serum, thus demonstrating a global deficiency in selenoprotein synthesis. Sbp2 iCKO mice replicate the thyroid phenotype of SBP2 deficiency and represent an important tool to advance our understanding of the role of SBP2 in thyroid homeostasis and for investigating selenoprotein biology relevant to human disease. PMID- 29029095 TI - Identification of novel bifunctional HIV-1 reverse transcriptase inhibitors. AB - Objectives: The increasing prevalence of mutations in HIV-1 reverse transcriptase (RT) that confer resistance to existing NRTIs and NNRTIs underscores the need to develop RT inhibitors with novel mode-of-inhibition and distinct resistance profiles. Methods: Biochemical assays were employed to identify inhibitors of RT activity and characterize their mode of inhibition. The antiviral activity of the inhibitors was assessed by cell-based assays using laboratory HIV-1 isolates and MT4 cells. RT variants were purified via avidin affinity columns. Results: Compound A displayed equal or greater potency against many common NNRTI-resistant RTs (K103N and Y181C RTs) relative to WT RT. Despite possessing certain NNRTI like properties, such as being unable to inhibit an engineered variant of RT lacking an NNRTI-binding pocket, we found that compound A was dependent on Mg2+ for binding to RT. Optimization of compound A led to more potent analogues, which retained similar activities against WT and K103N mutant viruses with submicromolar potency in a cell-based assay. One of the analogues, compound G, was crystallized in complex with RT and the structure was determined at 2.6 A resolution. The structure indicated that compound G simultaneously interacts with the active site (Asp186), the highly conserved primer grip region (Leu234 and Trp229) and the NNRTI-binding pocket (Tyr188). Conclusions: These findings reveal a novel class of RT bifunctional inhibitors that are not sensitive to the most common RT mutations, which can be further developed to address the deficiency of current RT inhibitors. PMID- 29029096 TI - Novel roles of glycosaminoglycans in the degradation of type I collagen by cathepsin K. AB - Glycosaminoglycans (GAGs) and collagen are the major organic components of bone matrix. However, their roles and functional relationships remain elusive. To investigate the role of GAGs in bone matrix degradation, the effects of GAGs on collagen were examined under acidic conditions that recapitulate the microenvironment of osteoclast resorption pits. We found that sulfated GAGs protect collagen fibrils against acid denaturation. Scanning electron microscopy demonstrated that collagen fibrils retain the fibril structure at pH 4.0 in the presence of chondroitin 6-sulfate. By surface plasmon resonance analysis, we found that sulfated GAGs, but not non-sulfated GAGs, bind to triple-helix type I collagen below pH 4.5. The binding of collagen in an acidic solution was dependent upon the GAG sugar chain length. Functionally, the acid-resistant collagen fibrils generated in the presence of sulfated GAGs were resistant to cathepsin K degradation in vitro below pH 4.0. As the pH increased from 4.0 to 5.0, the acid-resistant collagen fibrils were degraded by cathepsin K. Our results highlight the possibility that the interaction between GAGs and collagen under acidic conditions has a regulatory impact on cathepsin K-mediated bone degradation. PMID- 29029097 TI - Impact of Three Doses of Vitamin D3 on Serum 25(OH)D Deficiency and Insufficiency in At-Risk Schoolchildren. AB - Objective: We investigated the daily dose of vitamin D needed to achieve serum 25 hydroxyvitamin D [25(OH)D] sufficiency among schoolchildren at risk for deficiency. Study Design: The Daily D Health Study was a randomized double-blind vitamin D supplementation trial among racially/ethnically diverse schoolchildren (n = 685) in the northeastern United States. Children were supplemented with vitamin D3 at 600, 1000, or 2000 IU/d for 6 months. Measurements included serum 25(OH)D at baseline (October to December), 3 months (January to March), 6 months (April to June), and 12 months (6 months after supplementation). Results: At baseline, mean +/- standard deviation serum 25(OH)D level was 22.0 +/- 6.8 ng/mL, with 5.5% severely vitamin D deficient (<12 ng/mL), 34.1% deficient (12 to 19 ng/mL), 49.0% insufficient (20 to 29 ng/mL), and 11.4% sufficient (>=30 ng/mL). The lowest levels of serum 25(OH)D were found among black (17.9 +/- 6.7 ng/mL) and Asian children (18.9 +/- 4.8 ng/mL), with no baseline differences by weight status. Serum 25(OH)D increased over 6 months in all three dose groups. The 2000 IU/d group achieved a higher mean serum 25(OH)D level than the other two dose groups (33.1 vs 26.3 and 27.5 ng/mL; P < 0.001), with 59.9% of this group attaining sufficiency at 3 months and only 5.3% remaining severely deficient/deficient at 6 months. All dose groups demonstrated a fall in 25(OH)D at 12 months. Conclusions: Children at risk for vitamin D deficiency benefited from daily sustained supplementation of 2000 IU/d compared with lower doses closer to the current recommended daily allowance for vitamin D intake. This benefit occurred over the winter months, when serum 25(OH)D level tend to fall. PMID- 29029098 TI - Genital Granulomatosis in Male and Female Patients With Crohn's Disease: Clinical Presentation and Treatment Outcomes. AB - Background: Genital granulomatosis [GG] is a metastatic form of Crohn's disease [CD], characterised by granulomatous inflammation of the genital skin without contact with the gastrointestinal tract. Little is known about GG, as most publications are case reports or small series, and only sporadic in male cases. Methods and Aims: Cases of GG were retrospectively collected through the Collaborative Network For Exceptionally Rare case reports project of the European Crohn's and Colitis Organisation. Results: A total of 43 patients [9 males, 34 females] were diagnosed as having GG, mostly as oedema and/or ulcers. Histological confirmation of granulomas was obtained in 70% of the cases. CD location was colonic or ileocolonic in 97% and perianal disease was documented in 57%. There was no significant difference between males and females in CD phenotype or genital lesions. GG was the first manifestation of inflammatory bowel disease [IBD] in one-third of the patients; these patients were younger at the time of GG occurrence and they all were non-smokers. GG occurred in the absence of gastrointestinal disease activity in 30% of the cases. Ten out of 11 patients [91%] responded to systemic corticosteroid treatment, 5/9 patients responded to immunomodulators, and 9/11 patients responded to anti-tumour necrosis factor alpha [TNF-alpha] agents. Conclusions: GG is a rare extraintestinal manifestation of CD. It mainly occurs among women, in the setting of colonic involvement of CD, and perianal disease is often associated. Most cases are successfully managed with systemic corticosteroids or anti-TNF agents. PMID- 29029100 TI - 2017 EACTS/EACTA Guidelines on patient blood management for adult cardiac surgery. PMID- 29029101 TI - Growth Outcomes After GH Therapy of Patients Given Long-Term Corticosteroids for Juvenile Idiopathic Arthritis. AB - Context: Growth hormone (GH) therapy may improve statural growth outcomes in patients with severe juvenile idiopathic arthritis (JIA). Objectives: To evaluate the effect of GH treatment on adult height and to identify determinants of growth outcomes in JIA. Design and Patients: Data from 58 patients with JIA, including 53 receiving GH, enrolled in three prospective clinical trials between 1997 and 2002 were analyzed. Intervention: GH (0.056 mg/kg/d [interquartile range (IQR), 0.050 to 0.062]) for a median duration of 6.5 years (IQR, 4.7 to 7.9 years). Main Outcome Measures: Factors associated with a favorable growth outcome (adult height - target height <= -1.5 standard deviations) were identified by multivariate logistic regression. Results: Adult height was available for 48 patients 8.6 years after GH initiation (IQR, 6.0 to 10.2 years). Height standard deviation score (SDS) increased from -2.9 (IQR, -4.4 to -1.6) at baseline to -1.7 (IQR, -3.9 to -0.1) in adulthood (P < 0.001). Median adult height was below target height [SDS, -0.2 (IQR, -1.4 to 0.4); P < 0.001]. Corrected adult height SDS was -1.3 (IQR, -3.0 to -0.2). Growth outcome was favorable in 24 (52.2%) patients. Significant independent determinants of growth outcome were age at GH initiation [adjusted odds ratio (aOR), 0.68 per additional year; 95% confidence interval (CI), 0.47 to 0.99], height at GH initiation (aOR, 2.6 per additional SDS; 95% CI, 1.15 to 5.9), and mean C-reactive protein levels during follow up (aOR, 0.51 per additional 10 mg/L; 95% CI, 0.28 to 0.92). Conclusion: Long-term GH treatment significantly increased growth in patients with JIA but did not fully restore the genetic growth potential. The response showed marked interindividual variability and was weaker in patients with severe inflammation. PMID- 29029099 TI - Biomarkers of Mineral and Bone Metabolism and 20-Year Risk of Hospitalization With Infection: The Atherosclerosis Risk in Communities Study. AB - Context: Mineral and bone disorders (MBDs) might be relevant in the etiology of infection. Objective: To determine whether MBD biomarkers were associated with the incidence of hospitalization with infection. We also assessed the cross sectional association between MBD biomarker levels and kidney function. Design, Setting, Participants: Community-based cohort study of 11,218 participants with an estimated glomerular filtration rate (eGFR) >=30 mL/min/1.73m2 in the Atherosclerosis Risk in Communities study. We assessed the cross-sectional associations of five MBD markers-fibroblast growth factor 23 (FGF23), 25 hydroxyvitamin D [25(OH)D], parathyroid hormone (PTH), calcium corrected for hypoalbuminemia, and phosphorus-with eGFR from 1990 to 1992 and their longitudinal associations with incident hospitalization with infection in 1990 to 2013. Main Outcome: Incident hospitalization with infection. Results: In age-, sex-, and race-adjusted models, lower eGFRs were significantly associated with greater levels of FGF23, PTH, and corrected calcium but not 25(OH)D or phosphorus. During follow-up, 5078 hospitalizations with infection occurred. In fully adjusted Cox models, with the second quartile as the reference, the hazard ratio (HR) was significantly greater in the highest quartile of FGF23 [HR, 1.12; 95% confidence interval (CI), 1.03 to 1.21], PTH (HR, 1.09; 95% CI, 1.01 to 1.18), and corrected calcium (HR, 1.11; 95% CI, 1.03 to 1.20), and lowest quartile for 25(OH)D (HR, 1.11; 95% CI, 1.03 to 1.21). The association with phosphorus was significant only when the outcome was restricted to primary diagnosis of infection. These findings were consistent across subgroups of age, sex, race, and eGFR (<60 vs >=60 mL/min/1.73 m2). Conclusions: MBD biomarkers were associated with eGFR and the subsequent risk of infection, supporting MBD involvement in the etiology of infection. PMID- 29029104 TI - Adoptive Immunotherapy of Viral Infections: Should Infectious Disease Embrace Cellular Immunotherapy? PMID- 29029103 TI - Cardiovascular Disease Prevention Policy in Human Immunodeficiency Virus: Recommendations From a Modeling Study. AB - Background: Cardiovascular disease (CVD) is expected to contribute a large noncommunicable disease burden among human immunodeficiency virus (HIV)-infected people. We quantify the impact of prevention interventions on annual CVD burden and costs among HIV-infected people in the Netherlands. Methods: We constructed an individual-based model of CVD in HIV-infected people using national ATHENA (AIDS Therapy Evaluation in The Netherlands) cohort data on 8791 patients on combination antiretroviral therapy (cART). The model follows patients as they age, develop CVD (by incorporating a CVD risk equation), and start cardiovascular medication. Four prevention interventions were evaluated: (1) increasing the rate of earlier HIV diagnosis and treatment; (2) avoiding use of cART with increased CVD risk; (3) smoking cessation; and (4) intensified monitoring and drug treatment of hypertension and dyslipidemia, quantifying annual number of averted CVDs and costs. Results: The model predicts that annual CVD incidence and costs will increase by 55% and 36% between 2015 and 2030. Traditional prevention interventions (ie, smoking cessation and intensified monitoring and treatment of hypertension and dyslipidemia) will avert the largest number of annual CVD cases (13.1% and 20.0%) compared with HIV-related interventions-that is, earlier HIV diagnosis and treatment and avoiding cART with increased CVD risk (0.8% and 3.7%, respectively)-as well as reduce cumulative CVD-related costs. Targeting high-risk patients could avert the majority of events and costs. Conclusions: Traditional CVD prevention interventions can maximize cardiovascular health and defray future costs, particularly if targeting high-risk patients. Quantifying additional public health benefits, beyond CVD, is likely to provide further evidence for policy development. PMID- 29029102 TI - Nucleos(t)ide Analogue Treatment for Patients With Hepatitis B Virus (HBV) e Antigen-Positive Chronic HBV Genotype C Infection: A Nationwide, Multicenter, Retrospective Study. AB - Background: Antiviral treatment for hepatitis B virus (HBV) e antigen (HBeAg) positive chronic HBV infection is still controversial. We assessed whether antiviral treatment reduces the risk of liver disease progression in these patients. Methods: This study included consecutive patients in 8 large-volume hospitals in Korea who tested positive for HBeAg and had an HBV DNA level of >20000 IU/mL, an alanine aminotransferase (ALT) level of <40 IU/L, and no evidence of cirrhosis. The primary end point was the development of hepatocellular carcinoma (HCC), and the secondary end point was the development of cirrhosis. Results: A total of 484 patients were included: 87 were in the antiviral treatment group, and 397 were in the control group. Baseline liver function was significantly more favorable for the control group. After matching for propensity score to overcome those differences, the antiviral treatment group had a significantly reduced risk for HCC (hazard ratio [HR], 0.234; log-rank P = .046) and cirrhosis (HR, 0.235; log-rank P = .015), compared with the control group. After balancing the baseline characteristics by using inverse probability weighting, antiviral therapy significantly decreased the risk of HCC (HR, 0.189; log-rank P = .004) and cirrhosis (HR, 0.347; log-rank P = .036). Conclusion: Antiviral therapy for patients with HBeAg-positive chronic HBV infection and have a high HBV load reduces the risk of HCC, even if the ALT level is below the upper limit of normal. PMID- 29029105 TI - Comparative performance of transcatheter aortic valve-in-valve implantation versus conventional surgical redo aortic valve replacement in patients with degenerated aortic valve bioprostheses: systematic review and meta-analysis. AB - The objective of this report was to directly compare, by means of a systematic review and meta-analysis, redo surgical aortic valve replacement (re-sAVR) with valve-in-valve transcatheter aortic valve implantation (ViV TAVI) for patients with failed degenerated aortic bioprostheses. Multiple databases were screened for all available reports comparing ViV TAVI with re-sAVR in patients with failing degenerated aortic bioprostheses. The primary outcome was all-cause mortality determined from the longest available survival data. Five observational studies (n = 342) were included in the meta-analysis; patients in the ViV TAVI group were older and had a higher baseline risk compared to those in the re-sAVR group. Although there was no statistical difference in procedural mortality [risk ratio (RR) 0.74, 95% confidence interval (CI) 0.18-2.97; P = 0.67], 30-day mortality (RR 1.29, 95% CI 0.44-3.78; P = 0.64) and cardiovascular mortality (RR 0.91, 95% CI 0.30-2.70; P = 0.86) at a mean follow-up period of 18 months, cumulative survival analysis favoured surgery with borderline statistical significance (ViV TAVI versus re-sAVR: hazard ratio 1.91, 95% CI 1.03-3.57; P = 0.039). ViV TAVI was associated with a significantly lower rate of permanent pacemaker implantations (RR 0.37, 95% CI 0.20-0.68; P = 0.002) and shorter intensive care unit (P < 0.001) and hospital stays (P = 0.020). In contrast, re sAVR offered superior echocardiographic outcomes: lower incidence of patient prosthesis mismatch (P = 0.008), fewer paravalvular leaks (P = 0.023) and lower mean postoperative aortic valve gradients in the prespecified analysis (P = 0.017). The ViV TAVI approach is a safe and feasible alternative to re-sAVR that may offer an effective, less invasive treatment for patients with failed surgical aortic valve bioprostheses who are inoperable or at high risk. Re-sAVR should remain the standard of care, particularly in the low-risk population, because it offers superior haemodynamic outcomes with low mortality rates. PMID- 29029106 TI - Iatrogenic Cushing Syndrome in a Child With Congenital Adrenal Hyperplasia: Erroneous Compounding of Hydrocortisone. AB - Context: Patients with 21-hydroxylase deficiency congenital adrenal hyperplasia (CAH) require lifelong treatment with glucocorticoids. In growing children, the drug of choice is hydrocortisone. Commercially available hydrocortisone tablets do not conform to very low doses prescribed to infants and toddlers, and compounded hydrocortisone is often dispensed to meet therapeutic needs. However, safety, efficacy, and uniformity of compounded products are not tested. We report a case of Cushing syndrome in a child with CAH who was inadvertently receiving excessive hydrocortisone in compounded form. Design: A 20-month-old girl with CAH developed growth deceleration, excessive weight for length, irritability, increased facial fat, plethora, and excess body hair while receiving hydrocortisone from a local compounding pharmacy. The signs and symptoms persisted despite decreasing hydrocortisone dose. Iatrogenic Cushing syndrome was suspected. The prescribed hydrocortisone capsules were sent for analysis to the Sports Medicine Research & Testing Laboratory, where testing revealed that each 1 mg hydrocortisone capsule contained five to 10 times the dose prescribed and listed on the label. Conclusion: Physicians must be aware that errors in compounded medications may lead to unanticipated adverse effects. Iatrogenic Cushing syndrome should be suspected in any child receiving compounded glucocorticoid treatment who develops growth arrest and excess weight gain. PMID- 29029107 TI - New Food Baits for Trapping German Cockroaches, Blattella germanica (L.) (Dictyoptera: Blattellidae). AB - German cockroaches (GCRs), Blattella germanica (L.) (Dictyoptera: Blattellidae), are attracted to those beer semiochemicals (e.g., ethanol) that formerly living and active yeasts have produced or otherwise formed in the brewing process. We predicted that an earlier step in the production of beer, where yeasts actively metabolize the sugar in malted barley powder (dry malt extract [DME]), is very attractive to GCRs. In laboratory experiments, a 3-component composition (3CC) comprising DME, water, and Brewer's yeast strongly attracted GCR nymphs, females, and males. Both Brewers' yeast and 'spoilage organisms' in the DME or water seem to add to the attractiveness of the 3CC, but there is no additive or synergistic effect between them. The 3CC becomes optimally attractive to GCRs after 12 h of fermentation and stays that attractive for at least 120 h. In field trapping experiments, the 3CC and-unexpectedly-also the DME each proved as effective for attracting and capturing GCRs as a commercial cockroach bait (Combat Roach Gel). Future studies will investigate lethal biocontrol agents that can be added to the 3CC, or the DME, and will explore the efficacy of such lethal baits for GCR control. PMID- 29029108 TI - Relative Risks of Contributing Factors to Morbidity and Mortality in Adults With Craniopharyngioma on Growth Hormone Replacement. AB - Context: In adults, craniopharyngioma (CP) of either childhood-onset (CO-CP) or adult-onset (AO-CP) is associated with increased morbidity and mortality, but data on the relative risks (RRs) of contributing factors are lacking. Objective: To assess the RRs of factors contributing to morbidity and mortality in adults with CO-CP and AO-CP. Methods: Data on 1669 patients with CP from KIMS (Pfizer International Metabolic Database) were analyzed using univariate and multiple Poisson and Cox regression methods. Results: When CO-CP and AO-CP groups were combined, history of stroke and hyperlipidemia increased cardiovascular risk, higher body mass index (BMI) and radiotherapy increased cerebrovascular risk, and increased waist circumference increased the risk of developing diabetes mellitus (DM). Compared with patients with CO-CP, patients with AO-CP had a threefold higher risk of tumor recurrence, whereas being female and previous radiotherapy exposure conferred lower risks. Radiotherapy and older age with every 10 years from disease onset conferred a 2.3- to 3.5-fold risk for developing new intracranial tumors, whereas older age, greater and/or increasing BMI, history of stroke, and lower insulinlike growth factor I (IGF-I) standard deviation score measured at last sampling before death were related to increased all-cause mortality. Compared with the general population, adults with CP had 9.3-, 8.1-, and 2.2-fold risks of developing DM, new intracranial tumors, and early death, respectively. Conclusion: Conventional factors that increase the risks of cardio- and cerebrovascular diseases and DM and risks for developing new intracranial tumors contributed to excess morbidity and mortality. In addition, lower serum IGF-I level measured from the last sample before death was inversely associated with mortality risk in patients with CP. PMID- 29029110 TI - 2017 EACTS Guidelines on perioperative medication in adult cardiac surgery. PMID- 29029109 TI - Early diagnosis of acute coronary syndrome. AB - The diagnostic evaluation of acute chest pain has been augmented in recent years by advances in the sensitivity and precision of cardiac troponin assays, new biomarkers, improvements in imaging modalities, and release of new clinical decision algorithms. This progress has enabled physicians to diagnose or rule-out acute myocardial infarction earlier after the initial patient presentation, usually in emergency department settings, which may facilitate prompt initiation of evidence-based treatments, investigation of alternative diagnoses for chest pain, or discharge, and permit better utilization of healthcare resources. A non trivial proportion of patients fall in an indeterminate category according to rule-out algorithms, and minimal evidence-based guidance exists for the optimal evaluation, monitoring, and treatment of these patients. The Cardiovascular Round Table of the ESC proposes approaches for the optimal application of early strategies in clinical practice to improve patient care following the review of recent advances in the early diagnosis of acute coronary syndrome. The following specific 'indeterminate' patient categories were considered: (i) patients with symptoms and high-sensitivity cardiac troponin <99th percentile; (ii) patients with symptoms and high-sensitivity troponin <99th percentile but above the limit of detection; (iii) patients with symptoms and high-sensitivity troponin >99th percentile but without dynamic change; and (iv) patients with symptoms and high sensitivity troponin >99th percentile and dynamic change but without coronary plaque rupture/erosion/dissection. Definitive evidence is currently lacking to manage these patients whose early diagnosis is 'indeterminate' and these areas of uncertainty should be assigned a high priority for research. PMID- 29029111 TI - Short-term and mid-term survival in bronchial sleeve resection by robotic system versus thoracotomy for centrally located lung cancer. AB - OBJECTIVES: The aim of this study was to compare the short-term and mid-term results of patients with centrally located lung cancer who underwent bronchial sleeve resection by robotic system or thoracotomy. METHODS: From September 2014 to September 2015, 103 patients, including 17 robotic and 86 open cases, were included in our study. All the clinicopathological data, operative details and follow-up information were investigated. RESULTS: There were no intraoperative deaths. The mean console time was 113.59 min. The operative time for robotic surgery (155.06 +/- 44.75 min), even in our initial cases, was comparable to that for thoracotomy (150.30 +/- 47.84 min, P = 0.71). The 30-day mortality rate in the robotic and thoracotomy groups was 1 (6%) patient and 2 (2%) patients, respectively, with no significant difference (P = 0.43). A total of 4 (24%) patients in the robotic group and 22 (26%) patients in the thoracotomy group experienced postoperative complications (P = 0.86). In multivariable analysis, tumour size and postoperative radiotherapy were significant predictors of relapse free survival, whereas only the intensive care unit stay was a significant predictor of overall survival. There was no significant difference in relapse free survival (log-rank P = 0.16) and overall survival (log-rank P = 0.59) between the 2 groups. CONCLUSIONS: Robotic surgery for bronchial sleeve resection is safe and feasible and has similar oncological outcomes compared with open procedures. But long-term survival still needs to be investigated. PMID- 29029112 TI - Diversity and regulation of intrinsic beta-lactamases from non-fermenting and other Gram-negative opportunistic pathogens. AB - This review deeply addresses for the first time the diversity, regulation and mechanisms leading to mutational overexpression of intrinsic beta-lactamases from non-fermenting and other non-Enterobacteriaceae Gram-negative opportunistic pathogens. After a general overview of the intrinsic beta-lactamases described so far in these microorganisms, including circa. 60 species and 100 different enzymes, we review the wide array of regulatory pathways of these beta lactamases. They include diverse LysR-type regulators, which control the expression of beta-lactamases from relevant nosocomial pathogens such as Pseudomonas aeruginosa or Stenothrophomonas maltophilia or two-component regulators, with special relevance in Aeromonas spp., along with other pathways. Likewise, the multiple mutational mechanisms leading to beta-lactamase overexpression and beta-lactam resistance development, including AmpD (N-acetyl muramyl-L-alanine amidase), DacB (PBP4), MrcA (PPBP1A) and other PBPs, BlrAB (two component regulator) or several lytic transglycosylases among others, are also described. Moreover, we address the growing evidence of a major interplay between beta-lactamase regulation, peptidoglycan metabolism and virulence. Finally, we analyse recent works showing that blocking of peptidoglycan recycling (such as inhibition of NagZ or AmpG) might be useful to prevent and revert beta-lactam resistance. Altogether, the provided information and the identified gaps should be valuable for guiding future strategies for combating multidrug-resistant Gram negative pathogens. PMID- 29029113 TI - Estrogen Metabolism in Abdominal Subcutaneous and Visceral Adipose Tissue in Postmenopausal Women. AB - Context: In postmenopausal women, adipose tissue (AT) levels of estrogens exceed circulating concentrations. Although increased visceral AT after menopause is related to metabolic diseases, little is known about differences in estrogen metabolism between different AT depots. Objective: We compared concentrations of and metabolic pathways producing estrone and estradiol in abdominal subcutaneous and visceral AT in postmenopausal women. Design, Setting, Patients, and Interventions: AT and serum samples were obtained from 37 postmenopausal women undergoing surgery for nonmalignant gynecological reasons. Serum and AT estrone, estradiol, and serum estrone sulfate (E1S) concentrations were quantitated using liquid chromatography-tandem mass spectrometry. Activity of steroid sulfatase and reductive 17beta-hydroxysteroid dehydrogenase enzymes was measured using radiolabeled precursors. Messenger RNA (mRNA) expression of estrogen-converting enzymes was analyzed by real-time reverse transcription quantitative polymerase chain reaction. Results: Estrone concentration was higher in visceral than subcutaneous AT (median, 928 vs 706 pmol/kg; P = 0.002) and correlated positively with body mass index (r = 0.46; P = 0.011). Both AT depots hydrolyzed E1S to estrone, and visceral AT estrone and estradiol concentrations correlated positively with serum E1S. Compared with visceral AT, subcutaneous AT produced more estradiol from estrone (median rate of estradiol production, 1.02 vs 0.57 nmol/kg AT/h; P = 0.004). In visceral AT, the conversion of estrone to estradiol increased with waist circumference (r = 0.65; P = 0.022), and estradiol concentration correlated positively with mRNA expression of HSD17B7 (r = 0.76; P = 0.005). Conclusions: Both estrone and estradiol production in visceral AT increased with adiposity, but estradiol was produced more effectively in subcutaneous fat. Both AT depots produced estrone from E1S. Increasing visceral adiposity could increase overall estrogen exposure in postmenopausal women. PMID- 29029114 TI - Carbapenem-resistant Citrobacter spp. isolated in Spain from 2013 to 2015 produced a variety of carbapenemases including VIM-1, OXA-48, KPC-2, NDM-1 and VIM-2. AB - Objectives: There is little information about carbapenemase-producing (CP) Citrobacter spp. We studied the molecular epidemiology and microbiological features of CP Citrobacter spp. isolates collected in Spain (2013-15). Methods: In total, 119 isolates suspected of being CP by the EUCAST screening cut-off values were analysed. Carbapenemases and ESBLs were characterized using PCR and sequencing. The genetic relationship among Citrobacter freundii isolates was studied by PFGE. Results: Of the 119 isolates, 63 (52.9%) produced carbapenemases, of which 37 (58.7%) produced VIM-1, 20 (31.7%) produced OXA-48, 12 (19%) produced KPC-2, 2 (3.2%) produced NDM-1 and 1 (1.6%) produced VIM-2; 9 C. freundii isolates co-produced VIM-1 plus OXA-48. Fourteen isolates (22.2%) also carried ESBLs: 8 CTX-M-9 plus SHV-12, 2 CTX-M-9, 2 SHV-12 and 2 CTX-M-15. Fifty-seven isolates (90.5%) were C. freundii, 4 (6.3%) were Citrobacter koseri, 1 (1.6%) was Citrobacter amalonaticus and 1 (1.6%) was Citrobacter braakii. By EUCAST breakpoints, eight (12.7%) of the CP isolates were susceptible to the four carbapenems tested. In the 53 CP C. freundii analysed by PFGE, a total of 44 different band patterns were observed. Four PFGE clusters were identified: cluster 1 included eight isolates co-producing VIM-1 and OXA-48; blaVIM-1 was carried in a class 1 integron (intI-blaVIM-1-aacA4-dfrB1-aadA1-catB2 qacEDelta1/sul1) and blaOXA-48 was carried in a Tn1999.2 transposon. Conclusions: We observed the clonal and polyclonal spread of CP Citrobacter spp. across several Spanish geographical areas. Four species of Citrobacter spp. produced up to five carbapenemase types, including co-production of VIM-1 plus OXA-48. Some CP Citrobacter spp. isolates were susceptible to the four carbapenems tested, a finding with potential clinical implications. PMID- 29029115 TI - Whole-Genome Next-Generation Sequencing to Study Within-Host Evolution of Norovirus (NoV) Among Immunocompromised Patients With Chronic NoV Infection. AB - Background: The genus Norovirus comprises large genetic diversity, and new GII.4 variants emerge every 2-3 years. It is unknown in which host these new variants originate. Here we study whether prolonged shedders within the immunocompromised population could be a reservoir for newly emerging strains. Methods: Sixty-five fecal samples from 16 immunocompromised patients were retrospectively selected. Isolated viral RNA was enriched by hybridization with a custom norovirus whole genome RNA bait set and deep sequenced on the Illumina MiSeq platform. Results: Patients shed virus for average 352 days (range, 76-716 days). Phylogenetic analysis showed distinct GII.4 variants in 3 of 13 patients (23%). The viral mutation rates were variable between patients but did not differ between various immune status groups. All within-host GII.4 viral populations showed amino acid changes at blocking epitopes over time, and the majority of VP1 amino acid mutations were located at the capsid surface. Conclusions: This study found viruses in immunocompromised hosts that are genetically distinct from viruses circulating in the general population, and these patients therefore may contain a reservoir for newly emerging strains. Future studies need to determine whether these new strains are of risk to other immunocompromised patients and the general population. PMID- 29029117 TI - The European Registry for Patients with Mechanical Circulatory Support (EUROMACS) of the European Association for Cardio-Thoracic Surgery (EACTS): second report. AB - OBJECTIVES: The European Registry for Patients with Mechanical Circulatory Support (EUROMACS) was founded in Berlin, Germany. EUROMACS is supported fully by the European Association for Cardio-Thoracic Surgery (EACTS) and, since 2014, has functioned as a committee of the EACTS. The purpose of having the EUROMACS as a part of the EACTS is to accumulate clinical data related to long-term mechanical circulatory support for scientific purposes and to publish annual reports. METHODS: Participating hospitals contributed surgical and cardiological pre-, peri- and long-term postoperative data of mechanical circulatory support implants to the registry. Data for all implants performed from 1 January 2011 to 31 December 2016 were analysed. Several auditing methods were used to monitor the quality of the data. Data could be provided for in-depth studies, and custom data could be provided at the request of clinicians and scientists. This report includes updates of patient characteristics, implant frequency, mortality rates and adverse events. RESULTS: Fifty-two hospitals participated in the registry. This report is based on 2947 registered implants in 2681 patients. Survival of adult patients (>17 years of age) with continuous-flow left ventricular assist devices with a mean follow-up of 391 days was 69% (95% confidence interval 66 71%) 1 year after implantation. On average, patients were observed for 12 months (median 7 months, range 0-70 months). When we investigated for adverse events, we found an overall event rate per 100 patient-months of 3.56 for device malfunction, 6.45 for major bleeding, 6.18 for major infection and 3.03 for neurological events within the first 3 months after implantation. CONCLUSIONS: Compared to the first EUROMACS report, the number of participating hospitals increased from 21 to 52 (+148%), whereas the number of registered implants more than tripled from 825 to 2947 (+257%). The increase in the number of participating hospitals led us to increase the quality control measures through data input control, on-site audits and statistical analyses. PMID- 29029118 TI - Potential Side Effects of the Entomopathogenic Fungus Metarhizium anisopliae on the Egg Parasitoid Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) Under Controlled Conditions. AB - The purpose was to evaluate the side effects of strains Metarhizium anisopliae (Metsch.) Sorokin sensu lato Unioeste 43 and M. anisopliae sensu stricto ESALQ 1641 on Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) under controlled conditions. A free-choice test for parasitism was performed, with the confinement of T. pretiosum females mated with cards (1 * 5 cm) containing age standardized Anagasta kuehniella Zeller eggs, either sprayed with a fungal strain (109 conidia/ml) or 0.01% v/v Tween 80 (control). For the no-choice tests, T. pretiosum females mated were confined with cards sprayed with fungal strains before or after parasitism, and cards with fungal applications at different times. The number of parasitized eggs, percentage of emergence, longevity, egg-to adult period, sex ratio, total and confirmed mortality by the fungus, and longevity of females that parasitized previously sprayed eggs, were assessed. Histological analysis of immature phases was also performed. The fungus was repellent to T. pretiosum in the free-choice test, while in the no-choice test, fungal applications before and after parasitism did not affect the number of eggs parasitized by T. pretiosum or the sex ratio of emerging adults. However, both strains affected adult emergence rates, the egg-to-adult period, and longevity. Overall, both M. anisopliae strains had minor effects on these biological parameters of T. pretiosum under controlled conditions. Hyphae were not detected in histological observations of immature stages of the parasitoid. PMID- 29029116 TI - Upregulation of IRS1 Enhances IGF1 Response in Y537S and D538G ESR1 Mutant Breast Cancer Cells. AB - Increased evidence suggests that somatic mutations in the ligand-binding domain of estrogen receptor [ER (ERalpha/ESR1)] are critical mediators of endocrine resistant breast cancer progression. Insulinlike growth factor-1 (IGF1) is an essential regulator of breast development and tumorigenesis and also has a role in endocrine resistance. A recent study showed enhanced crosstalk between IGF1 and ERalpha in ESR1 mutant cells, but detailed mechanisms are incompletely understood. Using genome-edited MCF-7 and T47D cell lines harboring Y537S and D538G ESR1 mutations, we characterized altered IGF1 signaling. RNA sequencing revealed upregulation of multiple genes in the IGF1 pathway, including insulin receptor substrate-1 (IRS1), consistent in both Y537S and D538G ESR1 mutant cell line models. Higher IRS1 expression was confirmed by quantitative reverse transcription polymerase chain reaction and immunoblotting. ESR1 mutant cells also showed increased levels of IGF-regulated genes, reflected by activation of an IGF signature. IGF1 showed increased sensitivity and potency in growth stimulation of ESR1 mutant cells. Analysis of downstream signaling revealed the phosphoinositide 3-kinase (PI3K)-Akt axis as a major pathway mediating the enhanced IGF1 response in ESR1 mutant cells. Decreasing IRS1 expression by small interfering RNA diminished the increased sensitivity to IGF1. Combination treatment with inhibitors against IGF1 receptor (IGF1R; OSI-906) and ER (fulvestrant) showed synergistic growth inhibition in ESR1 mutant cells, particularly at lower effective concentrations. Our study supports a critical role of enhanced IGF1 signaling in ESR1 mutant cell lines, pointing toward a potential for cotargeting IGF1R and ERalpha in endocrine-resistant breast tumors with mutant ESR1. PMID- 29029119 TI - The end of the unique myocardial band: Part II. Clinical and functional considerations. AB - Two of the leading concepts of mural ventricular architecture are the unique myocardial band and the myocardial mesh model. We have described, in an accompanying article published in this journal, how the anatomical, histological and high-resolution computed tomographic studies strongly favour the latter concept. We now extend the argument to describe the linkage between mural architecture and ventricular function in both health and disease. We show that clinical imaging by echocardiography and magnetic resonance imaging, and electrophysiological studies, all support the myocardial mesh model. We also provide evidence that the unique myocardial band model is not compatible with much of scientific research. PMID- 29029120 TI - Diagnostic Usefulness of Varicella-Zoster Virus Real-Time Polymerase Chain Reaction Analysis of DNA in Saliva and Plasma Specimens From Patients With Herpes Zoster. AB - Background: We evaluated the diagnostic usefulness of polymerase chain reaction (PCR) analysis for detecting varicella-zoster virus (VZV) infection and reactivation of VZV, using DNA extracted from saliva and plasma specimens obtained from subjects with suspected herpes zoster and from healthy volunteers during stressful and nonstressful conditions. Methods: There were 52 patients with a diagnosis of herpes zoster (group 1), 30 with a diagnosis of zoster mimicking disease (group 2), and 27 healthy volunteers (group 3). Saliva and plasma samples were evaluated for VZV DNA by real-time PCR analysis. Results: Among patients with suspected herpes zoster (ie, patients in groups 1 and 2), the sensitivity of PCR analysis of salivary DNA for detecting VZV (88%; 95% confidence interval [CI], 74%-95%) was significantly higher than that of PCR analysis of plasma DNA (28%; 95% CI, 16%-44%; P < .001), whereas the specificity of PCR analysis of salivary DNA (100%; 95% CI, 88%-100%) was similar to that of PCR analysis of plasma DNA (100%; 95% CI, 78%-100%; P > .99). VZV DNA was not detected in saliva and plasma samples from group 3 (0%; 95% CI, 0%-14%). Conclusions: Real-time PCR analysis of salivary DNA is more sensitive than that of plasma DNA for detecting VZV among patients with suspected herpes zoster. We found no subclinical reactivation of VZV in group 3 following exposure to common stressful conditions. PMID- 29029121 TI - Clinical Heterogeneity and Phenotypic Expansion of NaPi-IIa-Associated Disease. AB - Context: NaPi-IIa, encoded by SLC34A1, is a key phosphate transporter in the mammalian proximal tubule and plays a cardinal role in renal phosphate handling. NaPi-IIa impairment has been linked to various overlapping clinical syndromes, including hypophosphatemic nephrolithiasis with osteoporosis, renal Fanconi syndrome with chronic kidney disease, and, most recently, idiopathic infantile hypercalcemia and nephrocalcinosis. Objectives: We studied the molecular basis of idiopathic infantile hypercalcemia with partial proximal tubulopathy in two apparently unrelated patients of Israeli and Turkish descent. Design: Genetic analysis in two affected children and their close relatives was performed using whole-exome sequencing, followed by in vitro localization and trafficking analysis of mutant NaPi-IIa. Results: Mutation and haplotype analyses in both patients revealed a previously described homozygous loss-of-function inserted duplication (p.I154_V160dup) in NaPi-IIa, which is inherited identical-by-descent from a common ancestor. The shared mutation was originally reported by our team in two adult siblings with renal Fanconi syndrome, hypophosphatemic bone disease, and progressive renal failure who are family members of one of the infants reported herein. In vitro localization assays and biochemical analysis of p.I154_V160dup and of additional NaPi-IIa mutants harboring a trafficking defect indicate aberrant retention at the endoplasmic reticulum in an immature and underglycosylated state, leading to premature proteasomal degradation. Conclusions: Our findings expand the phenotypic spectrum of NaPi-IIa disruption, reinforce its link with proximal tubular impairment, enable longitudinal study of the natural history of the disease, and shed light on cellular pathways associated with loss of function and impaired trafficking of NaPi-IIa mutants. PMID- 29029123 TI - Outcome of elevated CA125 values from primary care following implementation of ovarian cancer guidelines. AB - Background: Ovarian cancer presents later in the UK compared to economically similar countries. National guidance suggests measuring CA125 in primary care as a means of bringing patients to specialist attention. Aim: To investigate the outcome of CA125 values measured in accordance with this policy. Setting and design: Examination of the laboratory records of female patients from the usual catchment population of one general hospital in whom CA125 was measured from primary care in a calendar year. Methods: Those with values >35 u/ml were identified. Electronic records within the hospital were interrogated to identify what further evaluation had been undertaken whether ovarian or primary peritoneal cancer had been diagnosed or what other pathology was identified. We also reviewed the CA125 measurement history of patients diagnosed over 3 years by any route. Results: One hundred and sixty-four new cases of CA125 >=35 u/ml were found. Further information was available for 152 of them. Sixteen had ovarian or primary peritoneal cancer and 16 had other cancers. In 50 no cause for the abnormality was found. The remainder had various non-malignant conditions. The specificity for carcinoma of ovary/primary peritoneal carcinoma was 95.4% [95% confidence interval: 94.8-96.0). In a 3-year period, 65 patients were diagnosed with ovarian or primary peritoneal cancer, 5 had values of CA125 between 20 and 35 u/ml shortly before diagnosis. Conclusions: The CA125 level is a useful diagnostic test for ovarian cancer which has been embraced by primary care but higher sensitivity for earlier disease will require strategies to improve the specificity. PMID- 29029124 TI - Benzalkonium Chloride Provides Remarkable Stability to Liquid Protein Lures for Trapping Anastrepha obliqua (Diptera: Tephritidae). AB - Hydrolyzed protein lures are widely used to monitor fruit fly pests but are rapidly degraded by microbial activity and must be replaced frequently. To improve the stability of lures, the quaternary ammonium biocide, benzalkonium chloride (BC), was evaluated in mixtures with two hydrolyzed proteins commonly used to monitor Anastrepha spp. The mean number of Anastrepha obliqua adults captured during six consecutive weeks using Captor + borax with the addition of 240 mg BC/liter, not renewed during the test, was similar to Captor + borax that was replaced at weekly intervals and was more effective than Captor + borax without BC. Numbers of A. obliqua flies captured in 30% CeraTrap diluted in water containing 240 mg BC/liter were similar to those caught in traps baited with Captor + borax or 30% CeraTrap without BC in the first 9 d of evaluation but was significantly more effective than both lures after 56 d. After >2 mo of use, 30% CeraTrap containing 240 mg BC/liter remained as effective as newly prepared 30% CeraTrap. The addition of BC to lures reduced surface tension of liquid lures by ~40-50%. However, when BC was increased to 720 mg BC/liter, only a small additional reduction in surface tension was observed and higher concentrations of BC did not increase capture rates. These findings could contribute to reduced costs for trapping networks and the development of long-lasting formulations of liquid protein lures for bait stations and mass-trapping targeted at major tephritid pests. PMID- 29029122 TI - Immunogenicity and Safety of the HZ/su Adjuvanted Herpes Zoster Subunit Vaccine in Adults Previously Vaccinated With a Live Attenuated Herpes Zoster Vaccine. AB - Background: Protection against herpes zoster (HZ) induced by the live attenuated zoster vaccine Zostavax (ZVL) wanes within 3-7 years. Revaccination may renew protection. We assessed whether (re)vaccination with the adjuvanted HZ subunit vaccine candidate (HZ/su) induced comparable immune responses in previous ZVL recipients and ZVL-naive individuals (HZ-NonVac). Methods: In an open-label, multicenter study, adults >=65 years of age, vaccinated with ZVL >=5 years previously (HZ-PreVac), were matched to ZVL-naive adults (HZ-NonVac). Participants received 2 doses of HZ/su 2 months apart. The primary objective of noninferiority of the humoral immune response 1 month post-dose 2 was considered demonstrated if the upper limit of the 95% confidence interval (CI) of the adjusted anti-glycoprotein E geometric mean concentration (GMC) ratio of HZ NonVac over HZ-PreVac was <1.5. HZ/su cellular immunogenicity, reactogenicity, and safety were also assessed. Results: In 430 participants, humoral immune response to HZ/su was noninferior in HZ-PreVac compared with HZ-NonVac (adjusted GMC ratio, 1.04 [95% CI, .92-1.17]). Cellular immunogenicity, reactogenicity, and safety appeared to be comparable between groups. HZ/su was well-tolerated, with no safety concerns raised within 1 month post-dose 2. Conclusions: HZ/su induces a strong immune response irrespective of prior vaccination with ZVL, and may be an attractive option to revaccinate prior ZVL recipients. Clinical Trials Registration: NCT02581410. PMID- 29029125 TI - Vaccine Prevention of Respiratory Syncytial Virus Infection in Older Adults: The Work Continues. PMID- 29029126 TI - Hyalomma dromedarii (Acari: Ixodidae) Salivary Gland Extract Inhibits Angiogenesis and Exhibits In Vitro Antitumor Effects. AB - Hard ticks (Acari: Ixodidae) are blood-sucking ectoparasites characterized by the extended period of their attachment to their host. To access their bloodmeal, ticks secrete saliva containing a range of molecules that target the host's inflammation, immune system, and hemostatic components. Some of these molecules reportedly possess antiangiogenic and antitumor properties. The present study describes our investigation, the first of its kind, of the antiangiogenic and antitumoral effects of the Hyalomma dromedarii Koch, 1844 (Acari: Ixodidae), salivary gland extract (SGE), which inhibited the adhesion and migration of Human Umbilical Vein Endothelial Cells (HUVECs) in a dose-dependent manner, as well as angiogenesis in the Chick Chorioallantoic Membrane model. Interestingly, H. dromedarii SGE exerted an antiproliferative effect on U87 glioblastoma cells and inhibited their adhesion and migration to fibrinogen. These results open up new possibilities for characterizing and developing new molecules involved in the key steps of tumor progression. PMID- 29029129 TI - A visual review of the human pathogen Streptococcus pneumoniae. AB - Being the principal causative agent of bacterial pneumonia, otitis media, meningitis and septicemia, the bacterium Streptococcus pneumoniae is a major global health problem. To highlight the molecular basis of this problem, we have portrayed essential biological processes of the pneumococcal life cycle in eight watercolor paintings. The paintings are done to a consistent nanometer scale based on currently available data from structural biology and proteomics. In this review article, the paintings are used to provide a visual review of protein synthesis, carbohydrate metabolism, cell wall synthesis, cell division, teichoic acid synthesis, virulence, transformation and pilus synthesis based on the available scientific literature within the field of pneumococcal biology. Visualization of the molecular details of these processes reveals several scientific questions about how molecular components of the pneumococcal cell are organized to allow biological function to take place. By the presentation of this visual review, we intend to stimulate scientific discussion, aid in the generation of scientific hypotheses and increase public awareness. A narrated video describing the biological processes in the context of a whole-cell illustration accompany this article. PMID- 29029127 TI - Antibody Kinetics and Response to Routine Vaccinations in Infants Born to Women Who Received an Investigational Trivalent Group B Streptococcus Polysaccharide CRM197-Conjugate Vaccine During Pregnancy. AB - Background: Maternal vaccination against group B Streptococcus (GBS) might provide protection against invasive GBS disease in infants. We investigated the kinetics of transplacentally transferred GBS serotype-specific capsular antibodies in the infants and their immune response to diphtheria toxoid and pneumococcal vaccination. Methods: This phase 1b/2, observer-blind, single-center study (NCT01193920) enrolled infants born to women previously randomized (1:1:1:1) to receive either GBS vaccine at dosages of 0.5, 2.5, or 5.0 MUg of each of 3 CRM197-glycoconjugates (serotypes Ia, Ib, and III), or placebo. Infants received routine immunization: combination diphtheria vaccine (diphtheria-tetanus acellular pertussis-inactivated poliovirus/Haemophilus influenzae type b vaccine; age 6/10/ 14 weeks) and 13-valent pneumococcal CRM197-conjugate vaccine (PCV13; age 6/14 weeks and 9 months). Antibody levels were assessed at birth, day (D) 43, and D91 for GBS serotypes; 1 month postdose 3 (D127) for diphtheria; and 1 month postprimary (D127) and postbooster (D301) doses for pneumococcal serotypes. Results: Of 317 infants enrolled, 295 completed the study. In infants of GBS vaccine recipients, GBS serotype-specific antibody geometric mean concentrations were significantly higher than in the placebo group at all timepoints and predictably decreased to 41%-61% and 26%-76% of birth levels by D43 and D91, respectively. Across all groups, >=95% of infants were seroprotected against diphtheria at D127 and >=91% of infants had seroprotective antibody levels against each PCV13 pneumococcal serotype at D301. Conclusions: Maternal vaccination with an investigational CRM197-glycoconjugate GBS vaccine elicited higher GBS serotype-specific antibody levels in infants until 90 days of age, compared with a placebo group, and did not affect infant immune responses to diphtheria toxoid and pneumococcal vaccination. Clinical Trials Registration: NCT01193920. PMID- 29029128 TI - Evolution and Spatiotemporal Dynamics of Enterovirus A71 Subgenogroups in Vietnam. AB - Background: Enterovirus A71 (EV-A71) is the major cause of severe hand, foot, and mouth disease and viral encephalitis in children across the Asia-Pacific region, including in Vietnam, which has experienced a high burden of disease in recent years. Multiple subgenogroups (C1, C4, C5, and B5) concurrently circulate in the region with a large variation in epidemic severity. The relative differences in their evolution and epidemiology were examined within Vietnam and globally. Methods: A total of 752 VP1 gene sequences were analyzed (413 generated in this study combined with 339 obtained from GenBank), collected from patients in 36 provinces in Vietnam during 2003-2013, along with epidemiological metadata. Globally representative VP1 gene datasets of subgenogroups were used to coestimate time-resolved phylogenies and relative genetic diversity to infer virus origins and regional transmission network. Results: Despite frequent virus migration between countries, the highest genetic diversity of individual subgenogroups was maintained independently for several years in specific Asian countries representing genogroup-specific sources of EV-A71 diversity. Conclusion: This study highlights a persistent transmission network of EV-A71, with specific Asian countries seeding other countries in the region and beyond, emphasizing the need for improved EV-A71 surveillance and detailed genetic and antigenic characterization. PMID- 29029130 TI - Alternative Sample Types for HIV-1 Antiretroviral Drug Resistance Testing. AB - Monitoring human immunodeficiency virus type 1 (HIV-1) drug resistance is critical for assessing ART effectiveness and treatment outcomes for HIV-1 infected individuals, including children, worldwide. Traditionally, testing for HIV-1 drug resistance has primarily been performed on plasma samples, and with commercially available, clinically validated assays that are costly and difficult to access. While plasma is the preferred sample for HIV-1 drug resistance genotyping, plasma analysis requires sophisticated laboratory equipment, personnel, space, and stringent storage conditions for maintenance of sample integrity and transport. With the limitations in feasibility and affordability of providing these ideal conditions for plasma genotyping in resource-constrained settings, the field has gained substantial experience with the dried blood spot (DBS) technique as an alternative. Moreover, DBS analysis can be used to comprehensively monitor the spread of the epidemic with applications to more sensitive and quantitative technologies to assess HIV-1 globally. PMID- 29029132 TI - General practitioners' strategies in consultations with immigrants in Norway practice-based shared reflections among participants in focus groups. AB - Background: Immigrants comprise 16.8% of the population in Norway and meet General Practitioners (GPs) as their first point of contact with most health care services as do others in Norway. While Norwegian GPs are not trained in cultural competence, little is known about the extent to which they see good care for immigrants as relying on specific strategies. Objectives: To explore the thoughts of GPs in Norway about strategies they might use with immigrant patients. Methods: We performed focus groups posing the question 'What strategies do you use when meeting immigrant patients?' to three groups of GPs working in Norway. Two groups comprised 10 trainee GPs each; the final group comprised eight certified GPs. Verbatim transcripts were analysed by systematic text condensation. Results: Strategies for consultations with immigrants emerged gradually throughout the focus groups, coalescing around (i) Respect and learn about immigrant culture. (ii) Particularize diagnosis and care, accommodating epidemiological and cultural knowledge for a given group, while keeping a keen eye on the individual. (iii) Inform about Norwegian health care. (iv) Organize resources such as time, translators and interdisciplinary teams. Other core elements of cultural competence, including reflections on the GP's own cultural background, were conspicuously absent, however. Conclusion: Given the growing numbers of immigrants and the early transfer of refugees to general practice, our study points to the urgent need of supplementing teaching in patient-centred clinical method with cultural competence. Our study also highlights the potential of educational GP groups to develop strategies for cross-cultural consultations. PMID- 29029131 TI - Plasma Amino Acids Stimulate Uncoupled Respiration of Muscle Subsarcolemmal Mitochondria in Lean but Not Obese Humans. AB - Context: Obesity is associated with mitochondrial dysfunction in skeletal muscle. Increasing the plasma amino acid (AA) concentrations stimulates mitochondrial adenosine triphosphate (ATP) production in lean individuals. Objective: To determine whether acute elevation in plasma AAs enhances muscle mitochondrial respiration and ATP production in subsarcolemmal (SS) and intermyofibrillar (IMF) mitochondria in obese adults. Design: Assessment of SS and IMF mitochondrial function during saline (i.e., control) and AA infusions. Participants: Eligible participants were healthy lean (body mass index, <25 kg/m2; age, 37 +/- 3 years; n = 10) and obese (body mass index >30 kg/m2; age 35 +/- 3 years; n = 11) subjects. Intervention: Single trial of saline infusion followed by AA infusion. SS and IMF mitochondria were isolated from muscle biopsies collected at the end of the saline and AA infusions. Main Outcomes: Mitochondrial respiration and ATP production. Results: AA infusion increased adenosine 5'-diphosphate (ADP) stimulated respiration and ATP production rates of SS mitochondria in the lean (P < 0.05), but not obese, subjects. Furthermore, AA infusion increased the uncoupled (i.e., non-ADP-stimulated) respiration of SS mitochondria in the lean subjects only (P < 0.05). AA infusion had no effect on any of these parameters in IMF mitochondria in either lean or obese subjects (P > 0.05). Conclusions: Increasing the plasma AA concentrations enhances the capacity for respiration and ATP production of muscle SS, but not IMF, mitochondria in lean individuals, in parallel with increases in uncoupled respiration. However, neither of these parameters increases in muscle SS or IMF mitochondria in obese individuals. PMID- 29029133 TI - Rapid Determination of Ebolavirus Infectivity in Clinical Samples Using a Novel Reporter Cell Line. AB - Modern ebolavirus diagnostics rely primarily on quantitative reverse transcription-polymerase chain reaction (qRT-PCR), a sensitive method to detect viral genetic material in the acute phase of the disease. However, qRT-PCR does not confirm presence of infectious virus, presenting limitations in patient and outbreak management. Attempts to isolate infectious virus rely on in vivo or basic cell culture approaches, which prohibit rapid results and screening. In this study, we present a novel reporter cell line capable of detecting live ebolaviruses. These cells permit sensitive, large-scale screening and titration of infectious virus in experimental and clinical samples, independent of ebolavirus species and variant. PMID- 29029135 TI - Small increase in dolutegravir trough, but equivalent total dolutegravir exposure with simeprevir in HIV/HCV seronegative volunteers. AB - Background: Dolutegravir, an HIV integrase strand-transfer inhibitor, and simeprevir, an HCV NS3/4A PI, have the potential to interact as dolutegravir is a P-glycoprotein, uridine glucuronosyl transferase 1A1 and cytochrome P4503A substrate and simeprevir has been shown to mildly inhibit these. Objectives: To compare dolutegravir and simeprevir pharmacokinetics (PK) when given separately versus in combination. Methods: Healthy volunteers received: (i) 150 mg of simeprevir once daily for 7 days; (ii) 50 mg of dolutegravir once daily for 7 days; and (iii) 150 mg of simeprevir once daily plus 50 mg of dolutegravir once daily for 7 days, with randomization to treatment sequence. Twenty-four hour intensive PK sampling was performed on day 7 of each sequence following observed dosing and a standardized meal. PK parameters were determined using non compartmental methods and compared using paired t-tests. Bioequivalence for area under the curve (AUCtau) and maximum concentration (Cmax) were also assessed. NCT02404805. Results: Twenty-four subjects completed all three sequences. Dolutegravir trough was increased 24% (P = 0.0003) with simeprevir. Dolutegravir AUCtau was increased 15% (P = 0.002), but was deemed bioequivalent as the 90% CI for the geometric mean ratio was 107%-123%. Dolutegravir Cmax was bioequivalent. Simeprevir PK was unaffected by dolutegravir. There were no discontinuations due to adverse events and all adverse events were mild to moderate in severity. Conclusions: Dolutegravir trough was increased slightly with simeprevir, but AUCtau was bioequivalent. Despite the increase in trough, dolutegravir concentrations were well within the range with established safety data. Suggesting that simeprevir and dolutegravir can be safely co-administered. PMID- 29029134 TI - The natural history and surgical outcome of patients with scimitar syndrome: a multi-centre European study. AB - Aims: Treatment decisions in patients with scimitar syndrome (SS) are often challenging, especially in patients with isolated SS who are often asymptomatic and who might be diagnosed accidentally. We queried a large multi-institutional registry of SS patients to evaluate the natural history of this condition and to determine the efficacy of surgical treatment in terms of survival and clinical status. Methods and results: We collected data on 485 SS patients from 51 institutions; 279 (57%) patients were treated surgically (STPs) and 206 (43%) were clinically monitored (CMPs). Median age at last follow-up was 11.6 years (interquartile range 4-22 years). Overall survival probability at 30 years of age was 88% [85-92% confidence intervals (CI)] and was lower in patients with associated congenital heart disease (CHD) (P < 0.001) and pulmonary hypertension (P < 0.001). Most patients were asymptomatic at last follow-up (279/451, 62%); STPs were more frequently asymptomatic than CMPs (73% vs. 47%, P < 0.001), with fewer cardiac [odds ratio (OR) 0.42, 95% CI 0.22-0.82] and respiratory symptoms (OR 0.08, 95% CI 0.02-0.28). Many STPs (63/254, 25%) had stenosis/occlusion of the scimitar drainage, and this was associated with a younger age at surgery (OR 0.4, CI 0.21-0.78). Conclusion: Patients with SS have a high overall survival. Survival probability was lower in patients with associated CHDs and in patients with pulmonary hypertension. Surgical treatment of SS is beneficial in reducing symptoms, however, given the significant risk of post-operative scimitar drainage stenosis/occlusion, it should be tailored to a comprehensive haemodynamic evaluation and to the patient's age. PMID- 29029136 TI - Susceptibility of Culex quinquefasciatus (Diptera: Culicidae) in Southern Louisiana to Larval Insecticides. AB - Mosquito control districts conduct rigorous insecticide treatments against both larval and adult Culex quinquefasciatus Say (Diptera: Culicidae), the primary vector of West Nile virus in the southern United States. However, the development of resistant populations of Cx. quinquefasciatus in response to extensive larvicide or adulticide applications has been demonstrated repeatedly across the world. Examining changes in insecticide susceptibility in treated field areas can help inform mosquito control districts as to whether or not their treatments remain effective. We hypothesized that frequent insecticide applications for the control of mosquitoes in East Baton Rouge Parish, Louisiana, lowered susceptibility of wild Cx. quinquefasciatus to larvicides. Larvicide susceptibility was measured using Lysinibacillus sphaericus, spinosad, and temephos in populations of Cx. quinquefasciatus sampled from sites in three Parishes where frequencies of insecticide applications varied, and frequencies of resistance were measured relative to a susceptible reference colony. Susceptibility to these larvicides was widespread, although fourfold resistance to the organophosphate temephos was detected at one site in East Baton Rouge Parish in the spring of 2016, which increased to eightfold resistance by the end of the mosquito season. Activities of esterases were found to be elevated in wild, temephos-resistant mosquitoes, indicating the potential role of these enzymes as a mechanism of resistance. The results of this study provide a baseline of comparison for future measurements of susceptibility in Cx. quinquefasciatus in Louisiana, and may help inform local mosquito control districts as to the effectiveness and sustainability of their insecticide programs. PMID- 29029139 TI - Quantitative deformation analysis differentiates ischaemic and non-ischaemic cardiomyopathy: sub-group analysis of the VINDICATE trial. AB - Aims: To test the hypothesis that patients with ischaemic cardiomyopathy (ICM) and non-ischaemic cardiomyopathy (NICM) have different torsion and strain parameters, and compare to healthy, age-matched controls. VINDICATE investigated efficacy of high-dose vitamin D on patients with heart failure (HF) secondary to left ventricular (LV) systolic dysfunction of any aetiology. It is important to differentiate ICM and NICM as treatment and prognosis varies significantly. Cardiovascular magnetic resonance (CMR) reliably determines aetiology of HF and tissue tagging techniques are recognized as the reference standard measures of strain and torsion. Methods and results: Fifty three patients (31 ICM, 22 NICM) from VINDICATE and 25 controls underwent CMR at 3.0T, including cine imaging in multiple planes and tissue tagging by spatial modulation of magnetization. CMR data were analysed blinded, by quantitatively reporting circumferential strain and torsion from tagged images and global longitudinal strain from feature tracking. HF patients had larger ventricles indexed to body surface area, lower left ventricular ejection fraction (LVEF), LV torsion, twist, and strain parameters compared to controls. There were no significant differences between ICM and NICM in age, blood pressure, heart rhythm, or NYHA status. There was no significant difference in LV dimensions, EF, and strain parameters between ICM and NICM. NICM patients had significantly lower LV twist (6.0 +/- 3.7 degrees vs. 8.8 +/- 4.3 degrees , P = 0.023) and torsion (5.9 +/- 3.5 degrees vs. 8.8 +/ 4.7 degrees , P = 0.017) compared to ICM. Conclusion: Twist, torsion, and strain are reduced in HF patients compared to controls. Torsion and twist are significantly lower in patients with NICM compared to ICM, despite similar volumetric dimensions, circumferential and longitudinal strain parameters, and LVEF. PMID- 29029141 TI - Targeted antiplatelet therapy: novel treatment options for ischaemic heart disease. PMID- 29029137 TI - Comparison of Thaumarchaeotal populations from four deep sea basins. AB - The nitrogen cycle in the marine environment is strongly affected by ammonia oxidizing Thaumarchaeota. In some marine settings, Thaumarchaeotes can comprise a large percentage of the prokaryotic population. To better understand the biogeographic patterns of Thaumarchaeotes, we sought to investigate differences in their abundance and phylogenetic diversity between geographically distinct basins. Samples were collected from four marine basins (The Caspian Sea, the Great Australian Bight, and the Central and Eastern Mediterranean). The concentration of bacterial and archaeal 16S rRNA genes and archaeal amoA genes were assessed using qPCR. Minimum entropy decomposition was used to elucidate the fine-scale diversity of Thaumarchaeotes. We demonstrated that there were significant differences in the abundance and diversity of Thaumarchaeotes between these four basins. The diversity of Thaumarchaeotal oligotypes differed between basins with many oligotypes only present in one of the four basins, which suggests that their distribution showed biogeographic patterning. There were also significant differences in Thaumarchaeotal community structure between these basins. This would suggest that geographically distant, yet geochemically similar basins may house distinct Thaumarchaeaotal populations. These findings suggest that Thaumarchaeota are very diverse and that biogeography in part contributes in determining the diversity and distribution of Thaumarchaeotes. PMID- 29029140 TI - Structural valve deterioration in the Mitroflow biological heart valve prosthesis. AB - OBJECTIVES: Concern has been raised regarding the long-term durability of the Mitroflow biological heart valve prosthesis. Our aim was to assess the incidence of structural valve degeneration (SVD) for the Mitroflow bioprosthesis in a nationwide study in Denmark including all patients alive in Denmark who had received a Mitroflow aortic bioprosthesis since 2000. METHODS: Patients alive in Denmark with a Mitroflow bioprosthesis implanted since January 2000 were invited to participate in a nationwide cross-sectional study with a predefined definition of SVD. Of 1552 patients, 861 patients had died and 47 patients had been reoperated with 40 reoperations due to SVD. The remaining 644 patients were invited for evaluation; 574 patients accepted and were evaluated for SVD. The incidence of SVD was calculated using competing risk regression analysis with death as the competing event. RESULTS: A total of 173 patients were diagnosed with SVD by echocardiography. Of these, 64 (11%) patients had severe SVD and 109 (19%) patients moderate SVD. Severe SVD was associated with the age of the prosthesis and small prosthesis size [Size 21: hazard ratio (95% confidence interval, CI) 2.72 (0.97-8.56), P = 0.06; Size 19: 6.26 (1.63-24.06), P = 0.008]. The cumulative incidences of reoperation or severe SVD at Year 9 were 12.5% for Size 19, 7.6% for Size 21 and 3.1 (1.2-6.4)% for Size 23. Median survival in patients with prosthesis Sizes 23-29 was 6.4 (95% CI 5.7-7.0) years, with Size 21 it was 6.5 (95% CI 5.9-7.1) years and with Size 19 it was 6.9 (95% CI 5.7-8.2) years (P = 0.78). CONCLUSIONS: The incidence of undetected severe SVD was as high as the incidence of operated SVD. The overall risk for SVD is high for the Mitroflow bioprosthesis, especially if the prosthesis is small and older than 5 years. PMID- 29029142 TI - Detecting myocardial infarction type 2: targetting the right patients. PMID- 29029138 TI - The Female Genital Tract Microbiome Is Associated With Vaginal Antiretroviral Drug Concentrations in Human Immunodeficiency Virus-Infected Women on Antiretroviral Therapy. AB - Background: The female genital tract (FGT) microbiome may affect vaginal pH and other factors that influence drug movement into the vagina. We examined the relationship between the microbiome and antiretroviral concentrations in the FGT. Methods: Over one menstrual cycle, 20 human immunodeficiency virus (HIV)-infected women virologically suppressed on tenofovir (TFV) disoproxil fumarate/emtricitabine and ritonavir-boosted atazanavir (ATV) underwent serial paired cervicovaginal and plasma sampling for antiretroviral concentrations using high-performance liquid chromatography-tandem mass spectrometry. Analysis of 16S ribosomal RNA gene sequencing of cervicovaginal lavage clustered each participant visit into a unique microbiome community type (mCT). Results: Participants were predominantly African American (95%), with a median age of 38 years. Cervicovaginal lavage sequencing (n = 109) resulted in a low-diversity mCT dominated by Lactobacillus (n = 40), and intermediate-diversity (n = 28) and high diversity (n = 41) mCTs with abundance of anaerobic taxa. In multivariable models, geometric mean FGT:plasma ratios varied significantly by mCT for all 3 drugs. For both ATV and TFV, FGT:plasma was significantly lower in participant visits with high- and low-diversity mCT groups (all P < .02). For emtricitabine, FGT:plasma was significantly lower in participant visits with low- vs intermediate-diversity mCT groups (P = .002). Conclusions: Certain FGT mCTs are associated with decreased FGT antiretroviral concentrations. These findings are relevant for optimizing antiretrovirals used for biomedical HIV prevention in women. PMID- 29029143 TI - Genome-Wide Analysis of Genetic Risk Factors for Rheumatic Heart Disease in Aboriginal Australians Provides Support for Pathogenic Molecular Mimicry. AB - Background: Rheumatic heart disease (RHD) after group A streptococcus (GAS) infections is heritable and prevalent in Indigenous populations. Molecular mimicry between human and GAS proteins triggers proinflammatory cardiac valve reactive T cells. Methods: Genome-wide genetic analysis was undertaken in 1263 Aboriginal Australians (398 RHD cases; 865 controls). Single-nucleotide polymorphisms were genotyped using Illumina HumanCoreExome BeadChips. Direct typing and imputation was used to fine-map the human leukocyte antigen (HLA) region. Epitope binding affinities were mapped for human cross-reactive GAS proteins, including M5 and M6. Results: The strongest genetic association was intronic to HLA-DQA1 (rs9272622; P = 1.86 * 10-7). Conditional analyses showed rs9272622 and/or DQA1*AA16 account for the HLA signal. HLA-DQA1*0101_DQB1*0503 (odds ratio [OR], 1.44; 95% confidence interval [CI], 1.09-1.90; P = 9.56 * 10-3) and HLA-DQA1*0103_DQB1*0601 (OR, 1.27; 95% CI, 1.07-1.52; P = 7.15 * 10-3) were risk haplotypes; HLA_DQA1*0301-DQB1*0402 (OR 0.30, 95%CI 0.14-0.65, P = 2.36 * 10 3) was protective. Human myosin cross-reactive N-terminal and B repeat epitopes of GAS M5/M6 bind with higher affinity to DQA1/DQB1 alpha/beta dimers for the 2 risk haplotypes than the protective haplotype. Conclusions: Variation at HLA_DQA1 DQB1 is the major genetic risk factor for RHD in Aboriginal Australians studied here. Cross-reactive epitopes bind with higher affinity to alpha/beta dimers formed by risk haplotypes, supporting molecular mimicry as the key mechanism of RHD pathogenesis. PMID- 29029145 TI - Blood Meal Source Characterization Using Illumina Sequencing in the Chagas Disease Vector Rhodnius pallescens (Hemiptera: Reduviidae) in Panama. AB - Accurate blood meal identification is critical to understand hematophagous vector host relationships. This study describes a customizable Next-Generation Sequencing (NGS) approach to identify blood meals from Rhodnius pallescens (Hemiptera: Reduviidae) triatomines using multiple barcoded primers and existing software to pick operational taxonomic units and match sequences for blood meal identification. We precisely identified all positive control samples using this method and further examined 74 wild-caught R. pallescens samples. With this novel blood meal identification method, we detected 13 vertebrate species in the blood meals, as well as single and multiple blood meals in individual bugs. Our results demonstrate the reliability and descriptive uses of our method. PMID- 29029146 TI - A Real-Time PCR Assay for the Separation of Autographa gamma (Noctuidae: Plusiinae) From Morphologically Similar Species in North America. AB - The silver Y moth, Autographa gamma L. (Noctuidae: Plusiinae), is a pest of major economic importance in its native range of Europe, Asia, and North Africa. Although not present in North America, larvae of A. gamma are commonly intercepted in commodity shipments at U.S. ports, and adult surveys are conducted each year in more than 20 states. Because of the similarity of A. gamma to several native North American species that are attracted to the same pheromone lure, morphological identification of adults is difficult and requires dissection. In 2010, a specimen of Autographa californica (Speyer, 1875) (Lepidoptera: Noctuidae) from Pennsylvania was incorrectly identified as A. gamma, signaling the need for an alternative method of rapid identification. Here we detail a real-time PCR assay capable of identifying A. gamma specimens in approximately 45 min using extracted DNA. The assay uses a hydrolysis probe that targets a species-specific segment of the CO1 DNA barcode region, while a control probe targets a conserved region of 18S rDNA. The assay was tested with two independent runs of 452 specimens of Plusiinae representing 23 different species. The assay provided unambiguous data 99.7% of the time and did not result in any false positives; these data were used to develop a rule set for interpreting the real-time PCR results. In addition, the same diagnostic probe was tested in bulk sample simulations using real-time PCR and droplet digital PCR where A. gamma could be detected in concentrations as low as 1:1,000,000 (gamma:californica). These experiments provide baseline data for developing a bulk sample assay. PMID- 29029147 TI - Maternal and Fetal Outcomes Among Pregnant Women With Human Monkeypox Infection in the Democratic Republic of Congo. AB - Human monkeypox is an endemic disease in rain-forested regions of central Democratic Republic of Congo. We report fetal outcomes for 1 of 4 pregnant women who participated in an observational study at the General Hospital of Kole (Sankuru Province), where 222 symptomatic subjects were followed between 2007 and 2011. Of the 4 pregnant women, 1 gave birth to a healthy infant, 2 had miscarriages in the first trimester, and 1 had fetal death, with the macerated stillborn showing diffuse cutaneous maculopapillary skin lesions involving the head, trunk and extremities, including palms of hands and soles of feet. PMID- 29029144 TI - Broad-range survey of vector-borne pathogens and tick host identification of Ixodes ricinus from Southern Czech Republic. AB - Ixodes ricinus ticks are vectors of numerous human and animal pathogens. They are host generalists able to feed on more than 300 vertebrate species. The prevalence of tick-borne pathogens is influenced by host-vector-pathogen interactions that results in spatial distribution of infection risk. Broad-range polymerase chain reaction electrospray ionization mass spectrometry (PCR/ESI-MS) was used to analyze 435 I. ricinus nymphs from four localities in the south of the Czech Republic for the species identification of tick-borne pathogens. Borrelia burgdorferi sensu lato spirochetes were the most common pathogen detected in the ticks; 21% of ticks were positive for a single genospecies and 2% were co infected with two genospecies. Other tick-borne pathogens detected included Rickettsia helvetica (3.9%), R. monacensis (0.2%), Anaplasma phagocytophilum (2.8%), Babesia venatorum (0.9%), and Ba. microti (0.5%). The vertebrate host of the ticks was determined using PCR followed by reverse line blot hybridization from the tick's blood-meal remnants. The host was identified for 61% of ticks. DNA of two hosts was detected in 16% of samples with successful host identification. The majority of ticks had fed on artiodactyls (50.7%) followed by rodents (28.6%) and birds (7.8%). Other host species were wild boar, deer, squirrels, field mice and voles. PMID- 29029148 TI - The Crux of Ebola Diagnostics. PMID- 29029149 TI - No Clinical Benefit of Empirical Antimicrobial Therapy for Pediatric Diarrhea in a High-Usage, High-Resistance Setting. AB - Background: Pediatric diarrheal disease presents a major public health burden in low- to middle-income countries. The clinical benefits of empirical antimicrobial treatment for diarrhea are unclear in settings that lack reliable diagnostics and have high antimicrobial resistance (AMR). Methods: We conducted a prospective multicenter cross-sectional study of pediatric patients hospitalized with diarrhea containing blood and/or mucus in Ho Chi Minh City, Vietnam. Clinical parameters, including disease outcome and treatment, were measured. Shigella, nontyphoidal Salmonella (NTS), and Campylobacter were isolated from fecal samples, and their antimicrobial susceptibility profiles were determined. Statistical analyses, comprising log-rank tests and accelerated failure time models, were performed to assess the effect of antimicrobials on disease outcome. Results: Among 3166 recruited participants (median age 10 months; interquartile range, 6.5-16.7 months), one-third (1096 of 3166) had bloody diarrhea, and 25% (793 of 3166) were culture positive for Shigella, NTS, or Campylobacter. More than 85% of patients (2697 of 3166) were treated with antimicrobials; fluoroquinolones were the most commonly administered antimicrobials. AMR was highly prevalent among the isolated bacteria, including resistance against fluoroquinolones and third-generation cephalosporins. Antimicrobial treatment and multidrug resistance status of the infecting pathogens were found to have no significant effect on outcome. Antimicrobial treatment was significantly associated with an increase in the duration of hospitalization with particular groups of diarrheal diseases. Conclusions: In a setting with high antimicrobial usage and high AMR, our results imply a lack of clinical benefit for treating diarrhea with antimicrobials; adequately powered randomized controlled trials are required to assess the role of antimicrobials for diarrhea. PMID- 29029151 TI - Combined Toxicity of Three Essential Oils Against Aedes aegypti (Diptera: Culicidae) Larvae. AB - Essential oils are potential alternatives to synthetic insecticides because they have low mammalian toxicity, degrade rapidly in the environment, and possess complex mixtures of bioactive constituents with multi-modal activity against the target insect populations. Twenty-one essential oils were initially screened for their toxicity against Aedes aegypti (L.) larvae and three out of the seven most toxic essential oils (Manuka, oregano, and clove bud essential oils) were examined for their chemical composition and combined toxicity against Ae. aegypti larvae. Manuka essential oil interacted synergistically with oregano essential oil and antagonistically with clove bud essential oil. GC-MS analysis revealed the presence of 21 components in Manuka essential oil and three components each in oregano and clove bud essential oils. Eugenol (84.9%) and eugenol acetate (9.6%) were the principal constituents in clove bud essential oil while carvacrol (75.8%) and m-isopropyltoluene (15.5%) were the major constituents in oregano essential oil. The major constituents in Manuka essential oil were calamenene (20%) and 3-dodecyl-furandione (11.4%). Manuka essential oil interacted synergistically with eugenol acetate and antagonistically with eugenol, suggesting that eugenol was a major contributor to the antagonistic interaction between Manuka and clove bud essential oils. In addition, Manuka interacted synergistically with carvacrol suggesting its contribution to the synergistic interaction between Manuka and oregano essential oils. These findings provide novel insights that can be used to develop new and safer alternatives to synthetic insecticides. PMID- 29029150 TI - Antibiotic Use and New-Onset Inflammatory Bowel Disease in Olmsted County, Minnesota: A Population-Based Case-Control Study. AB - Background and Aims: Several studies have suggested significant associations between environmental factors and the risk of developing inflammatory bowel disease [IBD]. However, data supporting the role of antibiotics are conflicting. The aim of this study was to evaluate the association between antibiotic use and new-onset IBD. Methods: We conducted a population-based case-control study using the Rochester Epidemiology Project of Olmsted County, Minnesota. We identified 736 county residents diagnosed with IBD between 1980 and 2010 who were matched to 1472 controls, based on age, sex and date of IBD diagnosis. Data on antibiotic use between 3 months and 5 years before IBD diagnosis were collected. Logistic regression models were used to estimate associations between antibiotic use and IBD, and were expressed as adjusted odds ratio [AOR] with 95% confidence interval [CI]. Results: Antibiotic use occurred in 455 IBD cases [61.8%] and 495 controls [33.6%] [p < 0.001]. In multivariate analysis, there were statistically significant associations between antibiotic use and new-onset IBD [AOR, 2.93; 95% CI, 2.40-3.58], Crohn's disease [CD] [AOR, 3.01; 2.27-4.00] and ulcerative colitis [UC] [AOR, 2.94; 95% CI, 2.23-3.88]. A cumulative duration of antibiotic use >= 30 days had the strongest AOR [6.01; 95% CI, 4.34-8.45]. AOR for those receiving antibiotics under the age of 18 years was 4.27 [95% CI, 2.39-7.91], 2.97 for age 18-60 years [2.36-3.75] and 2.72 for age > 60 years [1.60-4.67]. Conclusions: This population-based case-control study suggests a strong association between antibiotic use and the risk of both new-onset CD and new onset UC. The risk was increased among all age-onset IBD. PMID- 29029152 TI - Surgical Treatment in Childhood-onset Inflammatory Bowel Disease-A Nationwide Register-based Study of 4695 Incident Patients in Sweden 2002-2014. AB - Background and Aims: The incidence of childhood-onset [< 18 years] inflammatory bowel disease [IBD] is increasing worldwide, and some studies suggest that it represents a more severe disease phenotype. Few nationwide, population-based studies have evaluated the surgical burden in patients with childhood-onset IBD, and whether the improved medical treatment has influenced the need for gastrointestinal surgery. The aim was to examine whether the surgical treatment at any age of patients with childhood-onset IBD has changed over time. Methods: In a nationwide cohort study we identified 4695 children [< 18 years] diagnosed with incident IBD in 2002-2014 through the Swedish Patient Register [ulcerative colitis: n = 2295; Crohn's disease: n = 2174; inflammatory bowel disease unclassified: n = 226]. Abdominal [intestinal resections and colectomies] and perianal surgeries were identified through the Swedish Patient Register. The cumulative incidences of surgeries were calculated using the Kaplan-Meier method. Results: In the cohort, 44% were females and 56% males. The median age at inflammatory bowel disease diagnosis was 15 years and the maximum age at end of follow-up was 31 years. The 3-year cumulative incidence of intestinal surgery was 5% in patients with ulcerative colitis and 7% in patients with Crohn's disease, and lower in children aged < 6 years at inflammatory bowel disease diagnosis [3%] than in those aged 15-17 years at diagnosis [7%]. Calendar period of inflammatory bowel disease diagnosis was not associated with risk of surgery. Conclusion: Over the past 13 years, the risk of surgery in childhood-onset inflammatory bowel disease has remained unchanged. PMID- 29029154 TI - Interrogating resilience in health systems development. AB - The Fourth Global Symposium on Health Systems Research was themed around 'Resilient and responsive health systems for a changing world.' This commentary is the outcome of a panel discussion at the symposium in which the resilience discourse and its use in health systems development was critically interrogated. The 2014-15 Ebola outbreak in West-Africa added momentum for the wider adoption of resilient health systems as a crucial element to prepare for and effectively respond to crisis. The growing salience of resilience in development and health systems debates can be attributed in part to development actors and philanthropies such as the Rockefeller Foundation. Three concerns regarding the application of resilience to health systems development are discussed: (1) the resilience narrative overrules certain democratic procedures and priority setting in public health agendas by 'claiming' an exceptional policy space; (2) resilience compels accepting and maintaining the status quo and excludes alternative imaginations of just and equitable health systems including the socio political struggles required to attain those; and (3) an empirical case study from Gaza makes the case that resilience and vulnerability are symbiotic with each other rather than providing a solution for developing a strong health system. In conclusion, if the normative aim of health policies is to build sustainable, universally accessible, health systems then resilience is not the answer. The current threats that health systems face demand us to imagine beyond and explore possibilities for global solidarity and justice in health. PMID- 29029153 TI - Modeling the Environmental Suitability for Aedes (Stegomyia) aegypti and Aedes (Stegomyia) albopictus (Diptera: Culicidae) in the Contiguous United States. AB - The mosquitoes Aedes (Stegomyia) aegypti (L.)(Diptera:Culicidae) and Ae. (Stegomyia) albopictus (Skuse) (Diptera:Culicidae) transmit dengue, chikungunya, and Zika viruses and represent a growing public health threat in parts of the United States where they are established. To complement existing mosquito presence records based on discontinuous, non-systematic surveillance efforts, we developed county-scale environmental suitability maps for both species using maximum entropy modeling to fit climatic variables to county presence records from 1960-2016 in the contiguous United States. The predictive models for Ae. aegypti and Ae. albopictus had an overall accuracy of 0.84 and 0.85, respectively. Cumulative growing degree days (GDDs) during the winter months, an indicator of overall warmth, was the most important predictive variable for both species and was positively associated with environmental suitability. The number (percentage) of counties classified as environmentally suitable, based on models with 90 or 99% sensitivity, ranged from 1,443 (46%) to 2,209 (71%) for Ae. aegypti and from 1,726 (55%) to 2,329 (75%) for Ae. albopictus. Increasing model sensitivity results in more counties classified as suitable, at least for summer survival, from which there are no mosquito records. We anticipate that Ae. aegypti and Ae. albopictus will be found more commonly in counties classified as suitable based on the lower 90% sensitivity threshold compared with the higher 99% threshold. Counties predicted suitable with 90% sensitivity should therefore be a top priority for expanded mosquito surveillance efforts while still keeping in mind that Ae. aegypti and Ae. albopictus may be introduced, via accidental transport of eggs or immatures, and potentially proliferate during the warmest part of the year anywhere within the geographic areas delineated by the 99% sensitivity model. PMID- 29029155 TI - The Role of Phylogenetics as a Tool to Predict the Spread of Resistance. AB - Drug resistance mutations emerge in genetic sequences of HIV through drug selective pressure. Drug resistance can be transmitted. In this review we discuss phylogenetic methods used to study the emergence of drug resistance and the spread of resistant viruses. PMID- 29029157 TI - Stings of the Ant Wasmannia auropunctata (Hymenoptera: Formicidae) as Cause of Punctate Corneal Lesions in Humans and Other Animals. AB - Numerous researchers have observed a form of punctate corneal lesions causing leukomas (corneal opacities) in humans, domestic animals, and wild animals in different parts of the world. This condition has been reported under different names, including West Indian (or Caribbean) punctate keratopathy, West Indian dots, tropical punctate keratopathy, Rice's keratopathy, Florida keratopathy, and Florida spots. Many of these cases, appear to have a common cause, the stings of a small red ant, Wasmannia auropunctata (Hymenoptera: Formicidae), originally from the Neotropics, but spread to other parts of the world through human commerce. The purpose of this article is to link disparate literature on punctate or nummular corneal lesions published in medical, veterinary, wildlife, and entomology journals, because many researchers seem largely unaware of the literature from disciplines other than their own. Recognizing a common cause of this corneal condition is important to insure proper medical treatment and foster efforts to limit the spread and negative impact of W. auropunctata. PMID- 29029156 TI - Detailed Transmission Network Analysis of a Large Opiate-Driven Outbreak of HIV Infection in the United States. AB - In January 2015, an outbreak of undiagnosed human immunodeficiency virus (HIV) infections among persons who inject drugs (PWID) was recognized in rural Indiana. By September 2016, 205 persons in this community of approximately 4400 had received a diagnosis of HIV infection. We report results of new approaches to analyzing epidemiologic and laboratory data to understand transmission during this outbreak. HIV genetic distances were calculated using the polymerase region. Networks were generated using data about reported high-risk contacts, viral genetic similarity, and their most parsimonious combinations. Sample collection dates and recency assay results were used to infer dates of infection. Epidemiologic and laboratory data each generated large and dense networks. Integration of these data revealed subgroups with epidemiologic and genetic commonalities, one of which appeared to contain the earliest infections. Predicted infection dates suggest that transmission began in 2011, underwent explosive growth in mid-2014, and slowed after the declaration of a public health emergency. Results from this phylodynamic analysis suggest that the majority of infections had likely already occurred when the investigation began and that early transmission may have been associated with sexual activity and injection drug use. Early and sustained efforts are needed to detect infections and prevent or interrupt rapid transmission within networks of uninfected PWID. PMID- 29029159 TI - Impact evaluation of free delivery care on maternal health service utilisation and neonatal health in Nepal. AB - Nepal introduced free delivery services for births in public facilities in 2005 in 25 districts with the intervention initially restricted to women with less than two living children and/or women with obstetric complications. After November 2007, eligibility conditions were relaxed to include all women, and the programme was later expanded to cover an additional 50 districts in December 2008. We exploit the phased expansion of the free birth delivery programme to identify its impact on place of delivery, the presence of skilled birth attendants (SBAs) and neonatal mortality using difference-in-difference methods, on data for 4457 live-births reported between 2001 and 2008 from Nepal Demographic and Health Surveys for 2006 and 2011. Programme impacts were estimated for: (1) initial implementation until the relaxation of eligibility criteria to include all women in November 2007 (early phase); and (2) initial implementation until the programme was expanded nationwide in December 2008 (longer phase). Early implementing districts were treatment districts, while late implementing hill districts were control districts. In the early phase, the likelihood of delivery by SBAs was 5.6 percentage points higher (95%CI 0.002, 0.111) and the likelihood of delivery in a public facility was 5.1 percentage points higher (95%CI -0.003, 0.106) in treatment districts compared with control districts. The programme lowered the likelihood of neonatal mortality by 4.0 ( 0.072, -0.009) percentage points for women with less than two living children and by 6.9 percentage points (95%CI -0.104, -0.035) for women from lower castes and indigenous groups in treatment districts compared with women in control districts, during the early phase. Programme effects on use of public facilities for births and deliveries attended by SBAs were not sustained over a longer exposure period. The results on neonatal mortality persisted with longer programme exposure, although the effects were smaller in magnitude. PMID- 29029158 TI - Genetic Interaction Network as an Important Determinant of Gene Order in Genome Evolution. AB - Although it is generally accepted that eukaryotic gene order is not random, the basic principles of gene arrangement on a chromosome remain poorly understood. Here, we extended existing population genetics theories that were based on two locus models and proposed a hypothesis that genetic interaction networks drive the evolution of eukaryotic gene order. We predicted that genes with positive epistasis would move toward each other in evolution, during which a negative correlation between epistasis and gene distance formed. We tested and confirmed our prediction with computational simulations and empirical data analyses. Importantly, we demonstrated that gene order in the budding yeast could be successfully predicted from the genetic interaction network. Taken together, our study reveals the role of the genetic interaction network in the evolution of gene order, extends our understanding of the encoding principles in genomes, and potentially offers new strategies to improve synthetic biology. PMID- 29029161 TI - Society for Glycobiology Awards-2017. PMID- 29029160 TI - Characterization of the Actinobacillus pleuropneumoniae SXT-related integrative and conjugative element ICEApl2 and analysis of the encoded FloR protein: hydrophobic residues in transmembrane domains contribute dynamically to florfenicol and chloramphenicol efflux. AB - Objectives: To characterize ICEApl2, an SXT-related integrative and conjugative element (ICE) found in a clinical isolate of the porcine pathogen Actinobacillus pleuropneumoniae, and analyse the functional nature of the encoded FloR. Methods: ICEApl2 was identified in the genome of A. pleuropneumoniae MIDG3553. Functional analysis was done using conjugal transfer experiments. MIDG3553 was tested for susceptibility to the antimicrobials for which resistance genes are present in ICEApl2. Lack of florfenicol/chloramphenicol resistance conferred by the encoded FloR protein was investigated by cloning and site-directed mutagenesis experiments in Escherichia coli. Results: ICEApl2 is 92660 bp and contains 89 genes. Comparative sequence analysis indicated that ICEApl2 is a member of the SXT/R391 ICE family. Conjugation experiments showed that, although ICEApl2 is capable of excision from the chromosome, it is not self-transmissible. ICEApl2 encodes the antimicrobial resistance genes floR, strAB, sul2 and dfrA1, and MIDG3553 is resistant to streptomycin, sulfisoxazole and trimethoprim, but not florfenicol or chloramphenicol. Cloning and site-directed mutagenesis of the floR gene revealed the importance of the nature of the hydrophobic amino acid residues at positions 160 and 228 in FloR for determining resistance to florfenicol and chloramphenicol. Conclusions: Our results indicate that the nature of hydrophobic residues at positions 160 and 228 of FloR contribute dynamically to specific efflux of florfenicol and chloramphenicol, although some differences in resistance levels may depend on the bacterial host species. This is also, to our knowledge, the first description of an SXT/R391 ICE in A. pleuropneumoniae or any member of the Pasteurellaceae. PMID- 29029163 TI - Toxicity and Sublethal Effects of Cantharidin on Musca domestica (Diptera: Muscidae). AB - The house fly, Musca domestica L. (Diptera: Muscidae), is a major pest of medical and veterinary importance all over the world. Management efforts for house flies are usually compromised owing to their resistance to many groups of conventional insecticides. Cantharidin, a natural toxin produced by meloid beetles, is a biopesticide with a reported toxicity to some insect pests including house flies. However, the effects of cantharidin on biological and fitness parameters of house flies have not yet been investigated. In the present study, we investigated the toxicity and sublethal effects of cantharidin on biological parameters of house flies for two consecutive generations. The results revealed that the values of LC50, LC25, LC10, and LC2 against house flies were to be 2.45, 1.23, 0.66, and 0.30 mg/liter, respectively. Sublethal effects of these concentrations on the development and reproduction parameters of house flies revealed that cantharidin reduced population growth by affecting pupation rate, adult emergence, and by lengthening developmental time. The female ratio, fecundity, egg hatching, and survival of adult flies were significantly reduced at LC2, LC10, LC25, and LC50 of cantharidin when compared with the control group. Furthermore, the increase in concentration of cantharidin had a significant effect on reducing the mean values of mean relative growth rate, net reproductive rate (Ro), intrinsic rate of natural increase (rm), and biotic potential (bp). In conclusion, the results of this study revealed the toxicity of cantharidin against house flies and the adverse effects of sublethal concentrations on biological parameters which may have positive implications for effective management of house flies. PMID- 29029162 TI - Aberrant Global and Jagged-Mediated Notch Signaling Disrupts Segregation Between wt1-Expressing and Steroidogenic Tissues in Zebrafish. AB - Although the zebrafish interrenal tissue has been used as a model for steroidogenesis and genesis of the adrenal gland, its specification and morphogenesis remains largely unclear. In the present study, we explored how the Wilms tumor 1 (WT1)-expressing cells are segregated from the SF-1-expressing steroidogenic cells in the zebrafish model. The interrenal tissue precursors expressing ff1b, the equivalent of mammalian SF-1, were derived from wt1 expressing pronephric primordia in the zebrafish embryo. Through histochemistry and in situ hybridization, we demonstrated that the size of functionally differentiated interrenal tissue was substantially increased on global inhibition of the Notch signaling pathway and was accompanied by a disrupted segregation between the wt1- and ff1b-expressing cells. As the Notch pathway was conditionally activated during interrenal specification, differentiation, but not ff1b expression, of interrenal tissue was drastically compromised. In embryos deficient for Notch ligands jagged 1b and 2b, transgenic reporter activity of wt1b promoter was detected within the steroidogenic interrenal tissue. In conclusion, our results indicate that Jagged-Notch signaling is required (1) for segregation between wt1-expressing cells and differentiated steroidogenic tissue; and (2) to modulate the extent of functional differentiation in the steroidogenic interrenal tissue. PMID- 29029165 TI - Depicting new pharmacological strategies for familial hypercholesterolaemia involving lipoprotein (a). AB - Approximately 35 million people worldwide suffer from heterozygous familial hypercholesterolaemia (HeFH), a condition characterized by genetically determined life-long elevation of plasma low-density lipoprotein cholesterol (LDL-C). One in three of these patients also inherit an elevated plasma concentration of lipoprotein (a) [Lp(a)], a lipoprotein particle with atherogenic, inflammatory and prothrombotic properties. Accordingly, the combination of high plasma LDL-C and Lp(a) can markedly accelerate premature atherosclerotic cardiovascular disease (ASCVD). Neither statin nor ezetimibe lowers Lp(a), so that FH patients with high Lp(a) remain at high residual risk of ASCVD. PCSK9 monoclonal antibodies are indicated for HeFH patients not at guideline-recommended LDL-C target, but only lower Lp(a) concentration by 15-30%. Recent trials employing apo(a) antisense therapy show more potent (up to 90%) reductions in plasma Lp(a). The combination of PCSK9 inhibitor and apo(a) antisense therapy appears the optimal strategy for mitigating residual risk of ASCVD in HeFH patients with high Lp(a). PMID- 29029164 TI - Aging Parents' Disabilities and Daily Support Exchanges With Middle-Aged Children. AB - Background and Objectives: Aging parents often incur disabilities in activities of daily living, which may limit their ability to give support and necessitate increased support from middle-aged children. Research has predominantly assessed disabled parents' retrospective reports of receiving support, but we know little about their daily support exchanges with middle-aged children. This study examined practical support, emotional support, and advice that aging parents with and without disabilities provided and received from middle-aged children, and links between these support exchanges and parents' daily mood. Research Design and Methods: Aging parents (N = 202, Mage = 79.86) from the Family Exchanges Study II indicated their disabilities and background characteristics. They also reported daily exchanges of practical, emotional support, and advice with each middle-aged child and their daily mood for 7 days. Results: Multilevel models revealed that aging parents suffering disabilities were equally likely to provide each type of support but more likely to receive practical support. Aging parents' disabilities seemed to buffer the effects of these support exchanges, such that parents with disabilities versus parents without disabilities reported less negative mood when providing practical support or emotional support, and more positive mood when receiving practical support. Discussion and Implications: Exploring the role of aging parents' disabilities in their daily support exchanges with middle-aged children expands on the literature of late-life disabilities and parent-child ties. Despite increasing disabilities, aging parents continue to engage in support exchanges with middle-aged children in daily life and these parents appear to benefit from such involvement. PMID- 29029167 TI - 124 Low-Back Pain Relief With a New 32-Contact Surgical Lead and Neural Targeting Algorithm. PMID- 29029166 TI - Beyond Antigenic Match: Possible Agent-Host and Immuno-epidemiological Influences on Influenza Vaccine Effectiveness During the 2015-2016 Season in Canada. AB - Background: Vaccine effectiveness (VE) estimates for 2015-2016 seasonal influenza vaccine are reported from Canada's Sentinel Practitioner Surveillance Network (SPSN). This season was characterized by a delayed 2009 pandemic influenza A(H1N1) virus (A[H1N1]pdm09) epidemic and concurrent influenza B(Victoria) virus activity. Potential influences on VE beyond antigenic match are explored, including viral genomic variation, birth cohort effects, prior vaccination, and epidemic period. Methods: VE was estimated by a test-negative design comparing the adjusted odds ratio for influenza test positivity among vaccinated compared to unvaccinated participants. Vaccine-virus relatedness was assessed by gene sequencing and hemagglutination inhibition assay. Results: Analyses included 596 influenza A(H1N1)pdm09 and 305 B(Victoria) cases and 926 test-negative controls. A(H1N1)pdm09 viruses were considered antigenically related to vaccine (unchanged since 2009), despite phylogenetic clustering within emerging clade 6B.1. The adjusted VE against A(H1N1)pdm09 was 43% (95% confidence interval [CI], 25%-57%). Compared to other age groups, VE against A(H1N1)pdm09 was lower for adults born during 1957-1976 (25%; 95% CI, -16%-51%). The VE against A(H1N1)pdm09 was also lower for participants consecutively vaccinated during both the current and prior seasons (41%; 95% CI, 18%-57%) than for those vaccinated during the current season only (75%; 95% CI, 45%-88%), and the VE among participants presenting in March-April 2016 (19%; 95% CI, -15%-44%) was lower than that among those presenting during January-February 2016 (62%; 95% CI, 44%-74%). The adjusted VE for B(Victoria) viruses was 54% (95% CI, 32%-68%), despite lineage-level mismatch to B(Yamagata) vaccine. The further variation in VE as observed for A(H1N1)pdm09 was not observed for B(Victoria). Conclusions: Influenza VE findings may require consideration of other agent-host and immuno-epidemiologic influences on vaccine performance beyond antigenic match, including viral genomic variation, repeat vaccination, birth (immunological) cohort effects, and potential within-season waning of vaccine protection. PMID- 29029168 TI - Effects of Foliar Insecticides on Leaf-Level Spectral Reflectance of Soybean. AB - Pest-induced changes in plant reflectance are crucial for the development of pest management programs using remote sensing. However, it is unknown if plant reflectance data is also affected by foliar insecticides applied for pest management. Our study assessed the effects of foliar insecticides on leaf reflectance of soybean. A 2-yr field trial and a greenhouse trial were conducted using randomized complete block and completely randomized designs, respectively. Treatments consisted of an untreated check, a new systemic insecticide (sulfoxaflor), and two representatives of the most common insecticide classes used for soybean pest management in the north-central United States (i.e., lambda cyhalothrin and chlorpyrifos). Insecticides were applied at labeled rates recommended for controlling soybean aphid; the primary insect pest in the north central United States. Leaf-level reflectance was measured using ground-based spectroradiometers. Sulfoxaflor affected leaf reflectance at some red and blue wavelengths but had no effect at near-infrared or green wavelengths. Chlorpyrifos affected leaf reflectance at some green, red, and near-infrared wavelengths but had no effect at blue wavelengths. lambda-cyhalothrin had the least effect on spectral reflectance among the insecticides, with changes to only a few near infrared wavelengths. Our results showing immediate and delayed effects of foliar insecticides on soybean reflectance indicate that application of some insecticides may confound the use of remote sensing for detection of not only insects but also plant diseases, nutritional and water deficiencies, and other crop stressors. PMID- 29029169 TI - A Family Affair: Family Typologies of Problems and Midlife Well-Being. AB - Background and Objectives: Midlife adults are a "pivot" generation, responding to parents' and grown children's problems. Yet, some midlife adults may have families where multiple members suffer sorrows, whereas other midlife adults may have families with few problems. This study examined: (a) typologies of problems across generations and (b) associations between profiles of problems and midlife adults' well-being. Research Design and Methods: Midlife adults (N = 633) reported their own, each parent's (n = 868), and grown child's (n = 1,785) physical (e.g., injury, cancer), psychological (e.g., anxiety, addiction), and lifestyle problems (e.g., divorce, job loss), and parents' functional disabilities. Midlife adults reported their own depressive symptoms. Results: Latent profile analysis revealed four family typologies: (a) lowest problems across generations (n = 364), (b) offspring and midlife adult moderate problems, parent high physical problems and disability (n = 165), (c) offspring and parent moderate problems (n = 90), and (d) offspring highest problems (n = 14). Midlife adults in the lowest problems group (Profile a) reported higher income and fewer depressive symptoms than midlife adults in the other groups. Discussion and Implications: Midlife adults cope with challenges when grown children or parents suffer problems, and their well-being may suffer as a result. In this study, regardless of the profile, higher problems in either generation were associated with more depressive symptoms for midlife adults. PMID- 29029170 TI - Use of a structured panel process to define antimicrobial prescribing appropriateness in critical care. AB - Background: Antimicrobial prescribing is frequently reported as appropriate or inappropriate, particularly in the ICU. However, the definitions used are non standardized and lack validity and reliability. Objectives: To develop standardized definitions of appropriateness for antimicrobial prescribing in the critical care setting. Methods: We used consensus-based modified Delphi and RAND appropriateness methodology to develop criteria to define appropriateness of antimicrobial prescribing. A multiphased approach with an online questionnaire followed by a facilitated in-person meeting was utilized and included clinicians from a variety of practice areas (e.g. surgeons, infectious diseases specialists, intensivists, transplant specialists and pharmacists). Results: There were a total of 23 criteria agreed upon to define the following categories of antimicrobial prescribing: appropriate; effective but unnecessary; inappropriate; and under-treatment. Conclusions: These standardized criteria for appropriateness may be generalizable to other patient populations and utilized with other tools to adjudicate prescribing practices. PMID- 29029172 TI - DnaSP 6: DNA Sequence Polymorphism Analysis of Large Data Sets. AB - We present version 6 of the DNA Sequence Polymorphism (DnaSP) software, a new version of the popular tool for performing exhaustive population genetic analyses on multiple sequence alignments. This major upgrade incorporates novel functionalities to analyze large data sets, such as those generated by high throughput sequencing technologies. Among other features, DnaSP 6 implements: 1) modules for reading and analyzing data from genomic partitioning methods, such as RADseq or hybrid enrichment approaches, 2) faster methods scalable for high throughput sequencing data, and 3) summary statistics for the analysis of multi locus population genetics data. Furthermore, DnaSP 6 includes novel modules to perform single- and multi-locus coalescent simulations under a wide range of demographic scenarios. The DnaSP 6 program, with extensive documentation, is freely available at http://www.ub.edu/dnasp. PMID- 29029171 TI - Effect of HIV on the Frequency and Number of Mycobacterium tuberculosis-Specific CD4+ T Cells in Blood and Airways During Latent M. tuberculosis Infection. AB - Human immunodeficiency virus type 1 (HIV) infection substantially increases the risk of developing tuberculosis. There is extensive depletion of Mycobacterium tuberculosis-specific CD4+ T cells in blood during early HIV infection, but little is known about responses in the lungs at this stage. Given that mucosal organs are a principal target for HIV-mediated CD4+ T-cell destruction, we investigated M. tuberculosis-specific responses in bronchoalveolar lavage (BAL) from persons with latent M. tuberculosis infection and untreated HIV coinfection with preserved CD4+ T-cell counts. M. tuberculosis-specific CD4+ T-cell cytokine (interferon gamma, tumor necrosis factor alpha, and interleukin 2) responses were discordant in frequency and function between BAL and blood. Responses in BAL were 15-fold lower in HIV-infected persons as compared to uninfected persons (P = .048), whereas blood responses were 2-fold lower (P = .006). However, an increase in T cells in the airways in HIV-infected persons resulted in the overall number of M. tuberculosis-specific CD4+ T cells in BAL being similar. Our study highlights the important insights gained from studying M. tuberculosis immunity at the site of disease during HIV infection. PMID- 29029173 TI - First Report of Aedes (Stegomyia) albopictus (Skuse) (Diptera: Culicidae), the Asian Tiger Mosquito, in Ecuador. AB - Aedes (Stegomyia) albopictus (Skuse), (Diptera: Culicidae), the Asian tiger mosquito, is one of the most widespread invasive vector-borne disease insect in tropical and temperate zones. This species has invaded the Americas over the past 3 decades and has spread to six countries. We report Ae. albopictus in Guayaquil city, the first time it has been identified in Ecuador. Outdoor BG-Sentinel traps without lures collected a total of 21 Ae. albopictus. PMID- 29029174 TI - Statistical Package for Growth Rates Made Easy. AB - Growth rates are an important tool in microbiology because they provide high throughput fitness measurements. The release of GrowthRates, a program that uses the output of plate reader files to automatically calculate growth rates, has facilitated experimental procedures in many areas. However, many sources of variation within replicate growth rate data exist and can decrease data reliability. We have developed a new statistical package, CompareGrowthRates (CGR), to enhance the program GrowthRates and accurately measure variation in growth rate data sets. We define a metric, Variability-score (V-score), that can help determine if variation within a data set might result in false interpretations. CGR also uses the bootstrap method to determine the fraction of bootstrap replicates in which a strain will grow the fastest. We illustrate the usage of CGR with growth rate data sets similar to those in Mira, Meza, et al. (Adaptive landscapes of resistance genes change as antibiotic concentrations change. Mol Biol Evol. 32(10): 2707-2715). These statistical methods are compatible with the analytic methods described in Growth Rates Made Easy and can be used with any set of growth rate output from GrowthRates. PMID- 29029175 TI - Beyond Antigenic Match: Moving Toward Greater Understanding of Influenza Vaccine Effectiveness. PMID- 29029176 TI - Spontaneous mechanical rupture of a papillary muscle effectively resolved by mitral valve repair. AB - We report a case of spontaneous mechanical papillary muscle rupture. In theory, the papillary muscle works as a shock absorber that compensates for geometric changes of left ventricular wall. We believe that the aetiology of papillary muscle rupture, in this case, is linked to the physical and mechanical strains exerted on the papillary. We performed a mitral valve repair with excellent short and long-term results. PMID- 29029177 TI - Influence of Traditional Management and Environmental Variables on Mediterranean Saproxylic Beetle Assemblages. AB - Mediterranean oak forests of the Iberian Peninsula host a great diversity of saproxylic beetles. For centuries, humans have carried out traditional management practices in this area, at both habitat and tree level, causing changes in forest structure. The aim of this study was to evaluate the anthropic effect of these traditional practices on saproxylic beetle diversity by measuring a set of environmental variables related to forest structure at both plot and tree level. Fauna was collected using window traps over a period of 12 mo. Multiple regression procedures showed which variables significantly affected the diversity of the studied assemblage. Our results demonstrated that the different metrics used to assess the diversity of assemblages responded variably depending on the management strategies applied and the level at which they were carried out. Certain management practices that disrupted the landscape from its natural state, such as the introduction of livestock or the local removal of particular trees, maximized species richness but, nevertheless, had a negative effect on the rest of diversity metrics analyzed. However, other practices such as pollarding, which involves the suppression of the main branch of the tree, had a positive effect on all diversity metrics evaluated as it promoted the formation of potential microhabitats for saproxylic fauna. We concluded that not all types and degrees of traditional forest management favor saproxylic beetle diversity and that different diversity metrics should be taken into consideration in future strategies for the protection and conservation of this fauna. PMID- 29029178 TI - Expansion of Viral Load Testing and the Potential Impact on Human Immunodeficiency Virus Drug Resistance. AB - Increasing the volume, strengthening the quality, and proactively using data of human immunodeficiency virus (HIV) load testing are pivotal to limiting the threat of HIV drug resistance (HIVDR) accumulation,and allow for optimal case based HIVDR surveillance. Triangulation of viral load (VL) and HIVDR testing data could be pursued to answer key questions and translate data and results for program and public policy. Identification of virologic failure and early management mitigates the greater risk of HIVDR. Routine VL monitoring and evaluation systems are necessary, and countries should consider reviewing system requirements, structural needs, and procedural and technical factors for the entire VL cascade, with special emphasis on post-test result use. PMID- 29029180 TI - Cerebral strokes in children on intracorporeal ventricular assist devices: analysis of the EUROMACS Registry. AB - OBJECTIVES: Little is known about cerebral strokes in paediatric patients supported by intracorporeal continuous-flow ventricular assist devices. METHODS: We retrospectively investigated patients younger than 19 years of age who were treated with an intracorporeal continuous-flow ventricular assist device in the European Registry for Patients with Mechanical Circulatory Support (EUROMACS) database. The patients were stratified by body surface area in Group 1 [<1.2 m2 (n = 13)] and Group 2 [>=1.2 m2 (n = 38)]. Cerebral strokes, both ischaemic and haemorrhagic, were studied. RESULTS: Of the 2941 patients with ventricular assist device (VAD) implants listed in the database, 124 (4%) patients were less than 19 years of age. Fifty-one of them (2%) were supported with a continuous-flow ventricular assist device. Group 1 (6 female and 7 male) had a mean age (+/-SD) of 9 +/- 2.3 years compared with 15.6 +/- 1.8 years in Group 2 (21 female and 17 male). Three (23%) patients died in Group 1 on VAD support, whereas 5 (13%) patients died in Group 2 (P = 0.21; log-rank test). Seven (54%) patients with a VAD in Group 1 and 17 (45%) patients in Group 2 underwent transplantation (P = 0.29); of these, 1 (8%) patient recovered (Group 1) with subsequent device explantation. The other patients, 2 in Group 1 and 16 in Group 2, were still on device support at the time of the analysis. There were no cerebral strokes in Group 1, but 4 cerebral strokes (11% of Group 2, 8% of a total of 51 patients in Groups 1 and 2 combined) occurred in Group 2 (3 patients died; P = 0.26; log-rank test). Taken together, the incidence of cerebral strokes in this paediatric cohort of patients with an intracorporeal VAD was 0.1 per patient-year. CONCLUSIONS: The incidence of cerebral strokes in children with intracorporeal VADs (0.1 per patient-year) seems to be low irrespective of the body surface area. PMID- 29029181 TI - Characterization of Odorant Receptors from a Non-ditrysian Moth, Eriocrania semipurpurella Sheds Light on the Origin of Sex Pheromone Receptors in Lepidoptera. PMID- 29029179 TI - Sustained Malaria Control Over an 8-Year Period in Papua New Guinea: The Challenge of Low-Density Asymptomatic Plasmodium Infections. AB - Background: The scale-up of effective malaria control in the last decade has resulted in a substantial decline in the incidence of clinical malaria in many countries. The effects on the proportions of asymptomatic and submicroscopic infections and on transmission potential are yet poorly understood. Methods: In Papua New Guinea, vector control has been intensified since 2008, and improved diagnosis and treatment was introduced in 2012. Cross-sectional surveys were conducted in Madang Province in 2006 (with 1280 survey participants), 2010 (with 2117 participants), and 2014 (with 2516 participants). Infections were quantified by highly sensitive quantitative polymerase chain reaction (PCR) analysis, and gametocytes were quantified by reverse-transcription qPCR analysis. Results: Plasmodium falciparum prevalence determined by qPCR decreased from 42% in 2006 to 9% in 2014. The P. vivax prevalence decreased from 42% in 2006 to 13% in 2010 but then increased to 20% in 2014. Parasite densities decreased 5-fold from 2006 to 2010; 72% of P. falciparum and 87% of P. vivax infections were submicroscopic in 2014. Gametocyte density and positivity correlated closely with parasitemia, and population gametocyte prevalence decreased 3-fold for P. falciparum and 29% for P. vivax from 2010 to 2014. Conclusions: Sustained control has resulted in reduced malaria transmission potential, but an increasing proportion of gametocyte carriers are asymptomatic and submicroscopic and represent a challenge to malaria control. PMID- 29029182 TI - Overlapping Surgeries Are Not Associated With Worse Patient Outcomes: Retrospective Multivariate Analysis of 14 872 Neurosurgical Cases Performed at a Single Institution. AB - BACKGROUND: Overlapping surgeries have recently become a controversial topic. OBJECTIVE: To evaluate the effect of overlapping surgeries on patient outcomes. METHODS: A retrospective analysis of all neurosurgical procedures performed at a single institution from July 2013 to May 2016 was conducted. Variables extracted from the electronic medical records included sex, age, procedure type, resident years of training, evening case, emergency case, American Society of Anesthesiologists Physical Status Score, illness severity, mortality risk, and percentage of case overlap. Univariate and multivariate analyses were performed for the following primary outcomes: procedure length, length of hospital stay, return to operating room (OR), disposition upon discharge, hospital readmission, and mortality. Separate analyses were performed for overlap thresholds of 0%, 20%, 50%, and 100%. RESULTS: A total of 14 872 cases were performed during the study period, and all were included in the statistical analyses. Univariate analysis showed a benefit for overlapping surgeries in terms of hospital length of stay, return to OR, and disposition status (all P < .001). No difference was found for hospital readmission or mortality. Overlapping surgeries were significantly longer and were staffed by more senior residents (P < .001). Multivariate analysis showed a benefit for overlapping surgeries, or no difference, for all the measured outcomes except procedure length. CONCLUSION: These results reject the hypothesis that overlapping surgeries are predictive of worse outcomes. When considered in the context of the current debate regarding overlapping surgeries, these results argue against claims that overlapping surgeries are dangerous or harmful to patients. PMID- 29029183 TI - Evaluation of the Constituents of Vetiver Oil Against Anopheles minimus (Diptera: Culicidae), a Malaria Vector in Thailand. AB - The development of resistance by mosquitoes to current synthetic compounds has resulted in reduced effectiveness of prevention and control methods worldwide. An alternative nonchemical based control tools are needed to be evaluated particularly plant-derived essential oils. Several components of vetiver oil have been documented as insect repellents. However, detailed knowledge of those components action against insect remains unknown. In this study, behavioral response of Anopheles minimus to four constituents of vetiver oil (valencene, terpinen-4-ol, isolongifolene, vetiverol) was evaluated by using the high throughput screening assay system. Vetiverol and isolongifolene exhibited strong contact irritancy action at 1.0% (80.2% escaping) and 5.0% (81.7% escaping) concentration, respectively, while moderate action was found in both valencene and terpinen-4-ol at 5.0% (57.6% escaping). Only at 1.0% (0.7 spatial activity index [SAI]) and 5.0% (1.0 SAI) of valencene and 0.5% (0.7 SAI) of isolongifolene showed spatial repellency activity. High mortality (58.9-98.2%) was recorded in all concentration of vetiverol and isolongifolene. Meanwhile, valencene exhibited high mortality only at 5.0%, terpinen-4-ol showed very low toxic action (0-4.3%) in all concentration. These proved that valencene in vetiver oil is the promising constituent that can be developed as an alternative mosquito control mean in efforts to prevent disease transmission. PMID- 29029185 TI - Patient-reported outcomes in newly diagnosed early rheumatoid arthritis patients treated to target with a tocilizumab- or methotrexate-based strategy. AB - Objective: To evaluate the effect of initiation of tocilizumab, with or without MTX, compared with MTX alone on patient-reported outcomes (PROs), in DMARD-naive patients with early RA. Methods: In U-Act-Early, patients initiated treat-to target step-up MTX, tocilizumab or tocilizumab plus MTX therapy. PROs assessed included the Functional Assessment of Chronic Illness Therapy-Fatigue, 36-item Short Form (SF-36), five dimensional EuroQol (EQ-5D) and the Revised Illness Perception Questionnaire. Differences between strategy groups over time and proportions of patients exceeding minimum clinically important differences (MCID) were evaluated. Results: During the 2-year study period, significant improvements were found in the tocilizumab strategies in the SF-36 physical component score (tocilizumab, P = 0.012; tocilizumab plus MTX, P = 0.044) and EQ-5D score (tocilizumab plus MTX, P = 0.020) when compared with the MTX strategy. No significant differences were noted in other PROs (P ? 0.052, except for the domain 'identity' in the Illness Perception Questionnaire; tocilizumab vs MTX, P = 0.048). The proportions of patients achieving MCID in SF-36 physical component score were significantly higher at 12 and 52 weeks (P ? 0.049) in the tocilizumab arms when compared with the MTX arm. At week 24, the proportion achieving MCID in EQ-5D was significantly higher in the tocilizumab plus MTX arm vs the MTX arm (P = 0.045). Conclusion: Initiation of treat-to-target tocilizumab therapy resulted in significantly improved PROs, especially within the first 24 weeks, when compared with initiation of MTX therapy. Also on the patients' level, initiating tocilizumab may be considered as a valuable strategy in DMARD-naive patients with early RA. Trial registration: ClinicalTrials.gov, http://clinicaltrials.gov, NCT01034137. PMID- 29029184 TI - Low Plasma Adiponectin Concentrations Predict Increases in Visceral Adiposity and Insulin Resistance. AB - Context: Plasma adiponectin concentration has been shown to be inversely associated with body mass index (BMI) and insulin resistance in cross-sectional research. However, it is unclear whether adiponectin predicts future body composition and insulin resistance. Objective: We aimed to investigate the potential relationship between adiponectin concentration and future regional body fat distribution and insulin resistance. Design and Setting: This was a community based prospective cohort study with 5 years of follow-up. Participants: A total of 218 Japanese Americans without diabetes (79 men, 139 women, mean age 51.7 +/- 10.1 years) were assessed at baseline and after 5 years of follow-up. Main Outcome Measures: Abdominal visceral and subcutaneous fat area and thigh subcutaneous fat area were measured by computed tomography (CT). Insulin resistance was evaluated by homeostasis model assessment 2 of insulin resistance (HOMA2-IR). Plasma total adiponectin was measured by radioimmunoassay. Results: Baseline adiponectin was inversely associated with abdominal visceral fat area (P = 0.037) and HOMA2-IR (P = 0.002) at 5 years in a multiple linear regression model after adjustment for baseline traits (including age, sex, BMI, abdominal visceral fat area, abdominal subcutaneous fat area, thigh subcutaneous fat area, HOMA2-IR) and weight change. However, no association was seen between baseline adiponectin concentration and BMI or other CT-measured regional fat depots at 5 years. Conclusions: Low plasma adiponectin concentration independently predicted future abdominal visceral fat accumulation and increased insulin resistance in Japanese Americans. PMID- 29029186 TI - Improved Algorithmic Complexity for the 3SEQ Recombination Detection Algorithm. AB - Identifying recombinant sequences in an era of large genomic databases is challenging as it requires an efficient algorithm to identify candidate recombinants and parents, as well as appropriate statistical methods to correct for the large number of comparisons performed. In 2007, a computation was introduced for an exact nonparametric mosaicism statistic that gave high precision P values for putative recombinants. This exact computation meant that multiple-comparisons corrected P values also had high precision, which is crucial when performing millions or billions of tests in large databases. Here, we introduce an improvement to the algorithmic complexity of this computation from O(mn3) to O(mn2), where m and n are the numbers of recombination-informative sites in the candidate recombinant. This new computation allows for recombination analysis to be performed in alignments with thousands of polymorphic sites. Benchmark runs are presented on viral genome sequence alignments, new features are introduced, and applications outside recombination analysis are discussed. PMID- 29029187 TI - Evidence for the Selective Basis of Transition-to-Transversion Substitution Bias in Two RNA Viruses. AB - The substitution rates of transitions are higher than expected by chance relative to those of transversions. Many have argued that selection disfavors transversions, as nonsynonymous transversions are less likely to conserve biochemical properties of the original amino acid. Only recently has it become feasible to directly test this selective hypothesis by comparing the fitness effects of a large number of transition and transversion mutations. For example, a recent study of six viruses and one beta-lactamase gene did not find evidence supporting the selective hypothesis. Here, we analyze the relative fitness effects of transition and transversion mutations from our recently published genome-wide study of mutational fitness effects in influenza virus. In contrast to prior work, we find that transversions are significantly more detrimental than transitions. Using what we believe to be an improved statistical framework, we also identify a similar trend in two HIV data sets. We further demonstrate a fitness difference in transition and transversion mutations using four deep mutational scanning data sets of influenza virus and HIV, which provided adequate statistical power. We find that three of the most commonly cited radical/conservative amino acid categories are predictive of fitness, supporting their utility in studies of positive selection and codon usage bias. We conclude that selection is a major contributor to the transition:transversion substitution bias in viruses and that this effect is only partially explained by the greater likelihood of transversion mutations to cause radical as opposed to conservative amino acid changes. PMID- 29029189 TI - Identification of a mutarotase gene involved in D-galactose utilization in Aspergillus nidulans. AB - Aldose 1-epimerases or mutarotases (EC 5.1.3.3) are catalyzing the interconversion of alpha- and beta-anomers of hemiacetals of aldose sugars such as D-glucose and D-galactose, and are presumed to play an auxiliary role in carbohydrate metabolism as mutarotation occurs spontaneously in watery solutions. The first step in the Leloir pathway of D-galactose breakdown is preceded by accelerated conversion of beta-D-galactopyranose into the alpha-anomer, the substrate of the anomer-specific D-galactose 1-kinase. Here, we identified two putative aldose-1-epimerase genes (galmA and galmB) in the model organism Aspergillus nidulans, and characterized them upon generation of single- and double deletion mutant strains, as well as overexpressing mutants carrying multiple copies of either. Assaying cell-free extracts from the galmB single- and galm double mutants, we observed that the mutarotation hardly exceeded spontaneous anomer conversion, while galmB multicopy strains displayed higher activities than the wild type, increasing with the copy number. When grown on D galactose in submerged cultures, biomass formation and D-galactose uptake rates in mutants lacking galmB were considerably reduced. None such effects were observed studying galmA deletion mutants, which consistently behave like the wild type. We conclude that GalmB is the physiologically relevant mutarotase for the utilization of D-galactose in A. nidulans. PMID- 29029188 TI - An Analysis of the Epidemic of Klebsiella pneumoniae Carbapenemase-Producing K. pneumoniae: Convergence of Two Evolutionary Mechanisms Creates the "Perfect Storm". AB - Background: Carbapenem resistance is a critical healthcare challenge worldwide. Particularly concerning is the widespread dissemination of Klebsiella pneumoniae carbapenemase (KPC). Klebsiella pneumoniae harboring blaKPC (KPC-Kpn) is endemic in many areas including the United States, where the epidemic was primarily mediated by the clonal dissemination of Kpn ST258. We postulated that the spread of blaKPC in other regions occurs by different and more complex mechanisms. To test this, we investigated the evolution and dynamics of spread of KPC-Kpn in Colombia, where KPC became rapidly endemic after emerging in 2005. Methods: We sequenced the genomes of 133 clinical isolates recovered from 24 tertiary care hospitals located in 10 cities throughout Colombia, between 2002 (before the emergence of KPC-Kpn) and 2014. Phylogenetic reconstructions and evolutionary mapping were performed to determine temporal and genetic associations between the isolates. Results: Our results indicate that the start of the epidemic was driven by horizontal dissemination of mobile genetic elements carrying blaKPC-2, followed by the introduction and subsequent spread of clonal group 258 (CG258) isolates containing blaKPC-3. Conclusions: The combination of 2 evolutionary mechanisms of KPC-Kpn within a challenged health system of a developing country created the "perfect storm" for sustained endemicity of these multidrug-resistant organisms in Colombia. PMID- 29029190 TI - Pharmacokinetics of IGF-1 in PAPP-A2-Deficient Patients, Growth Response, and Effects on Glucose and Bone Density. AB - Context: The pregnancy-associated plasma protein A2 (PAPP-A2) cleaves insulinlike growth factor binding proteins 3 and 5, releasing free insulinlike growth factor 1 (IGF-1). Homozygous mutations in PAPP-A2 result in growth failure with elevated total but low free IGF-1. Objective: To determine the 24-hour pharmacokinetic (PK) profile of free and total IGF-1 after a dose of recombinant human insulinlike growth factor 1 (rhIGF-1). We describe the growth response and effects on glucose metabolism and bone mineral density (BMD) after 1 year of rhIGF-1 therapy. Design and Patients: Three affected siblings, their heterozygous parents, and two healthy controls participated. The subjects received a dose of rhIGF-1, followed by serial blood samples collected over 24 hours. The two younger siblings were started on rhIGF-1 treatment. An oral glucose tolerance test and dual-energy X-ray absorptiometry scans were obtained at baseline and after 1 year of treatment. Results: Subcutaneous administration of rhIGF-1 increased the concentration of free and total IGF-1 in patients with PAPP-A2 deficiency. The PK profile was comparable in all participants. At baseline, all three subjects demonstrated insulin resistance and below-average BMD. Treatment with rhIGF-1 is ongoing in the youngest patient but was discontinued in his brother because of the development of pseudotumor cerebri. The treated patient had an increase in height velocity from 3.0 to 6.2 cm/y, resolution of insulin resistance, and an increase in total body BMD. Conclusions: rhIGF-1 at standard dosages resulted in similar PK characteristics in patients with PAPP-A2 deficiency, heterozygous relatives, and healthy controls. The youngest affected patient experienced a modest growth response to therapy with rhIGF-1, as well as beneficial effects on glucose metabolism and bone mass. PMID- 29029191 TI - Evaluating the Neolithic Expansion at Both Shores of the Mediterranean Sea. AB - During the Neolithic, human populations underwent cultural and technological developments that led to an agricultural revolution. Although the population genetics and evolution of European Neolithic populations have been extensively studied, little is known regarding the Neolithic expansion in North Africa with respect to Europe. One could expect that the different environmental and geological conditions at both shores of the Mediterranean Sea could have led to contrasting expansions. In order to test this hypothesis, we compared the Neolithic expansion in Europe and North Africa accounting for possible migration between them through the Strait of Gibraltar. We analyzed the entire X chromosome of 580 individuals from 20 populations spatially distributed along the North of Africa and Europe. Next, we applied approximate Bayesian computation based on extensive spatially explicit computer simulations to select among alternative scenarios of migration through the Strait of Gibraltar and to estimate population genetics parameters in both expansions. Our results suggest that, despite being more technologically advanced, Neolithic populations did not expand faster than Paleolithic populations, which could be interpreted as a consequence of a more sedentary lifestyle. We detected reciprocal Neolithic migration between the Iberian Peninsula and North Africa through the Strait of Gibraltar. Counterintuitively, we found that the studied Neolithic expansions presented similar levels of carrying capacity and migration, and occurred at comparable speeds, suggesting a similar demic process of substitution of hunter-gatherer populations. Altogether, the Neolithic expansion through both Mediterranean shores was not so different, perhaps because these populations shared similar technical abilities and lifestyle patterns. PMID- 29029192 TI - Paracoccidioidomycosis Associated With a Heterozygous STAT4 Mutation and Impaired IFN-gamma Immunity. AB - Background: Mutations in genes affecting interferon-gamma (IFN-gamma) immunity have contributed to understand the role of IFN-gamma in protection against intracellular pathogens. However, inborn errors in STAT4, which controls interleukin-12 (IL-12) responses, have not yet been reported. Our objective was to determine the genetic defect in a family with a history of paracoccidioidomycosis. Methods: Genetic analysis was performed by whole-exome sequencing and Sanger sequencing. STAT4 phosphorylation (pSTAT4) and translocation to the nucleus, IFN-gamma release by patient lymphocytes, and microbicidal activity of patient monocytes/macrophages were assessed. The effect on STAT4 function was evaluated by site-directed mutagenesis using a lymphoblastoid B cell line (B-LCL) and U3A cells. Results: A heterozygous missense mutation, c.1952 A>T (p.E651V) in STAT4 was identified in the index patient and her father. Patient's and father's lymphocytes showed reduced pSTAT4, nuclear translocation, and impaired IFN-gamma production. Mutant B-LCL and U3A cells also displayed reduced pSTAT4. Patient's and father's peripheral blood mononuclear cells and macrophages demonstrated impaired fungicidal activity compared with those from healthy controls that improved in the presence of recombinant human IFN-gamma, but not rhIL-12. Conclusion: Our data suggest autosomal dominant STAT4 deficiency as a novel inborn error of IL-12-dependent IFN-gamma immunity associated with susceptibility to paracoccidioidomycosis. PMID- 29029193 TI - Sex and Iron Modify Fibroblast Growth Factor 23 Concentration in 1-Year-Old Children. AB - Context: Fibroblast growth factor 23 (FGF23) plays an important role in phosphate homeostasis, but its regulation is inadequately characterized. Objective: To examine FGF23 regulators, especially sex and iron status, in early childhood. Design: A cross-sectional study involving 1-year-old children. Setting and Participants: Healthy term infants with a birth weight appropriate for gestational age were recruited to an ongoing vitamin D trial at Katiloopisto Maternity Hospital, Helsinki, Finland. At 12-month follow-up visits, serum FGF23, 25-hydroxyvitamin D (25OHD), phosphate, ionized calcium, parathyroid hormone, and iron status were measured. All 721 children (51% girls) with complete data were included. Main Outcome Measures: Intact and C-terminal FGF23 concentrations and iron status at 1 year of age. Results: Intact FGF23 was greater in girls than in boys [median, 44.4 pg/mL; interquartile range (IQR), 36.8 to 51.9; median, 40.9 pg/mL; IQR, 34.5 to 49.0, respectively; P < 0.001]. C-terminal FGF23 was similar in boys and girls (median, 2.8 pmol/L; IQR, 2.1 to 3.7; median, 2.9 pmol/L; IQR, 2.2 to 3.7, respectively; P = 0.393). The iron concentration was positively associated with intact FGF23 and was the strongest modifier of intact FGF23 (regression coefficient, 0.498; 95% confidence interval, 0.333 to 0.663; P < 0.001) with ferritin, season, ionized calcium, 25OHD, and sex as other covariates. The association between iron and C-terminal FGF23 was inversely related (regression coefficient, -0.072; 95% confidence interval, -0.092 to 0.051; P < 0.001). Conclusions: At 1 year of age, FGF23 status was different in girls and boys, with intact FGF23 concentrations higher in girls. Iron modified FGF23 concentrations, with intact FGF23 higher and C-terminal lower, in those with greater iron concentrations. PMID- 29029194 TI - Envelope proteome changes driven by RamA overproduction in Klebsiella pneumoniae that enhance acquired beta-lactam resistance. AB - Objectives: In Klebsiella pneumoniae, overproduction of RamA results in reduced envelope permeability and reduced antimicrobial susceptibility but clinically relevant resistance is rarely observed. Here we have tested whether RamA overproduction can enhance acquired beta-lactam resistance mechanisms in K. pneumoniae and have defined the envelope protein abundance changes upon RamA overproduction during growth in low and high osmolarity media. Methods: Envelope permeability was estimated using a fluorescent dye accumulation assay. beta Lactam susceptibility was measured using disc testing. Total envelope protein production was quantified using LC-MS/MS proteomics and transcript levels were quantified using real-time RT-PCR. Results: RamA overproduction enhanced beta lactamase-mediated beta-lactam resistance, in some cases dramatically, without altering beta-lactamase production. It increased production of efflux pumps and decreased OmpK35 porin production, though micF overexpression showed that OmpK35 reduction has little impact on envelope permeability. A survey of K. pneumoniae bloodstream isolates revealed ramA hyperexpression in 3 of 4 carbapenemase producers, 1 of 21 CTX-M producers and 2 of 19 strains not carrying CTX-M or carbapenemases. Conclusions: Whilst RamA is not a key mediator of antibiotic resistance in K. pneumoniae on its own, it is potentially important for enhancing the spectrum of acquired beta-lactamase-mediated beta-lactam resistance. LC-MS/MS proteomics analysis has revealed that this enhancement is achieved predominantly through activation of efflux pump production. PMID- 29029195 TI - Helpfulness, Trust, and Safety of Neighborhoods: Social Capital, Household Income, and Self-Reported Health of Older Adults. AB - Background and Objectives: Growing literature documents that where you live has an impact on your health, due in part to social capital. Building on social capital literature, we assess how subjective appraisals of neighborhood quality are associated with self-reported health (SRH) for older adults. Research Design and Methods: Cross-sectional analysis of the 2014 California Health Interview Survey, a representative survey of diverse, noninstitutionalized California residents. We use three measures of neighborhood quality: trustworthy neighbors, helpful neighbors, and feeling safe. Using weighted ordinary least squares regression, we assess the associations of trust, helpfulness, and safety to SRH, controlling for neighborhood, demographic, and health care variables. We then examine how these associations vary by household income. Results: We find that characterizing neighbors as helpful and feeling safe are associated with better SRH, even controlling for community, demographic, and health care variables. However, the importance of these dimensions varies across household income: helpfulness is positively associated, whereas trust is negatively associated with SRH for lower income residents; safety is positively associated with SRH in all but the lowest income residents. These findings show that social capital dimensions work differently from one another, and differentially affect the health of older adults. Discussion and Implications: Scholarly analyses of neighborhood effects should include a range of social capital measures and stratify by household income. Our findings may also inform priority setting for social capital programs, especially for older adults with limited economic resources. Policies and programs should consider actions that raise perceptions of helpfulness and safety. PMID- 29029197 TI - Microsurgical Clip Reconstruction of a 1 cm Complex Anterior Communicating Artery Aneurysm via an Orbitozygomatic Approach: 2-Dimensional Operative Video. PMID- 29029196 TI - Association Between Coronary Artery Calcification and the Hemoglobin Glycation Index: The Kangbuk Samsung Health Study. AB - Context: The hemoglobin glycation index (HGI) is known to be correlated with the risk for cardiovascular disease. Objective: To analyze the association between incident coronary artery calcification (CAC) and the changes in HGI among participants without diabetes, over 4 years. Design, Setting, Participants, and Outcome Measures: A retrospective study of 2052 nondiabetic participants in whom the coronary artery calcium score was measured repeatedly over 4 years, as part of a health checkup program in Kangbuk Samsung Hospital in Korea, and who had no CAC at baseline. The HGI was defined as the difference between the measured and predicted hemoglobin A1c (HbA1c) levels. Results: A total of 201 participants developed CAC after 4 years, and the mean baseline HGI was significantly higher in those patients. The incidence of CAC gradually increased from the first to the fourth quartile groups of baseline HGI. The odds ratio (OR) for incident CAC was the highest among the four groups divided by the quartiles of the baseline HGI and was significant after adjustment for confounding variables (vs first quartile group: OR, 1.632; 95% confidence interval, 1.024 to 2.601). The incidence of and risk for CAC development were significantly higher than in other groups compared with the low-to-low group after adjustment for confounding factors; however, when baseline HbA1c level was included in the model, only participants with a low-to high HGI over 4 years showed a significantly increased OR for CAC development compared with the low-to-low group (OR, 1.722; 95% confidence interval, 1.046 to 2.833). Conclusions: The participants with a high baseline HGI and consistently high HGI showed a higher risk for incident CAC than those with a low baseline HGI. An increased HGI over 4 years significantly increased the risk for CAC regardless of the baseline HbA1c levels. PMID- 29029198 TI - Different genomic changes underlie adaptive evolution in populations of contrasting history. AB - Experimental evolution is a powerful tool to understand the adaptive potential of populations under environmental change. Here, we study the importance of the historical genetic background in the outcome of evolution at the genome-wide level. Using the natural clinal variation of Drosophila subobscura, we sampled populations from two contrasting latitudes (Adraga, Portugal and Groningen, Netherlands) and introduced them in a new common environment in the laboratory. We characterized the genome-wide temporal changes underlying the evolutionary dynamics of these populations, which had previously shown fast convergence at the phenotypic level, but not at chromosomal inversion frequencies. We found that initially differentiated populations did not converge either at genome-wide level or at candidate SNPs with signs of selection. In contrast, populations from Portugal showed convergence to the control population that derived from the same geographical origin and had been long-established in the laboratory. Candidate SNPs showed a variety of different allele frequency change patterns across generations, indicative of an underlying polygenic basis. We did not detect strong linkage around candidate SNPs, but rather a small but long-ranging effect. In conclusion, we found that history played a major role in genomic variation and evolution, with initially differentiated populations reaching the same adaptive outcome through different genetic routes. PMID- 29029199 TI - A Surrogate Function for One-Dimensional Phylogenetic Likelihoods. AB - Phylogenetics has seen a steady increase in data set size and substitution model complexity, which require increasing amounts of computational power to compute likelihoods. This motivates strategies to approximate the likelihood functions for branch length optimization and Bayesian sampling. In this article, we develop an approximation to the 1D likelihood function as parametrized by a single branch length. Our method uses a four-parameter surrogate function abstracted from the simplest phylogenetic likelihood function, the binary symmetric model. We show that it offers a surrogate that can be fit over a variety of branch lengths, that it is applicable to a wide variety of models and trees, and that it can be used effectively as a proposal mechanism for Bayesian sampling. The method is implemented as a stand-alone open-source C library for calling from phylogenetics algorithms; it has proven essential for good performance of our online phylogenetic algorithm sts. PMID- 29029200 TI - Lateral Cerebellar Nucleus Stimulation has Selective Effects on Glutamatergic and GABAergic Perilesional Neurogenesis After Cortical Ischemia in the Rodent Model. AB - BACKGROUND: Chronic deep brain stimulation of the rodent lateral cerebellar nucleus (LCN) has been demonstrated to enhance motor recovery following cortical ischemia. This effect is concurrent with synaptogenesis and expression of long term potentiation markers in the perilesional cerebral cortex. OBJECTIVE: To further investigate the cellular changes associated with chronic LCN stimulation in the ischemic rodent by examining neurogenesis along the cerebellothalamocortical pathway. METHODS: Rats were trained on the pasta matrix task, followed by induction of cortical ischemia and electrode implantation in the contralesional LCN. Electrical stimulation was initiated 6 wk after stroke induction and continued for 4 wk prior to sacrifice. Neurogenesis was examined using immunohistochemistry. RESULTS: Treated animals showed enhanced performance on the pasta matrix task relative to sham controls. Increased cell proliferation colabeled with 5'-Bromo-2'-deoxyuridine and neurogenic markers (doublecortin) was observed in the perilesional cortex as well as bilateral mediodorsal and ventrolateral thalamic subnuclei in treated vs untreated animals. The neurogenic effect at the level of motor cortex was selective, with stimulation-treated animals showing greater glutamatergic neurogenesis but significantly less GABAergic neurogenesis. CONCLUSION: These findings suggest that LCN deep brain stimulation modulates postinjury neurogenesis, providing a possible mechanistic foundation for the associated enhancement in poststroke motor recovery. PMID- 29029201 TI - A Comprehensive Comparison of Quantifications of Intraindividual Variability in Response Times: A Measurement Burst Approach. AB - Objectives: To formally identify and contrast the most commonly-employed quantifications of response time inconsistency (RTI) and elucidate their utility for understanding within-person (WP) and between-person (BP) variation in cognitive function with increasing age. Method: Using two measurement burst studies of cognitive aging, we systematically identified and computed five RTI quantifications from select disciplines to examine: (a) correlations among RTI quantifications; (b) the distribution of BP and WP variation in RTI; and (c) the comparability of RTI quantifications for predicting attention switching. Results: Comparable patterns were observed across studies. There was significant variation in RTI BP as well as WP across sessions and bursts. Correlations among RTI quantifications were generally strong and positive both WP and BP, except for the coefficient of variation. Independent prediction models indicated that slower mean response time (RT) and greater RTI were associated with slower attention switching both WP and BP. For selecting simultaneous prediction models, collinearity resulted in inflated standard errors and unstable model estimates. Discussion: RTI reflects a novel dimension of performance that is a robust and theoretically informative predictor of BP and WP variation in cognitive function. Among the plenitude of RTI quantifications, not all are interchangeable, nor of comparable predictive utility. PMID- 29029203 TI - Prognostic significance of computed tomography criteria for pulmonary veno occlusive disease in systemic sclerosis-pulmonary arterial hypertension. AB - Objectives: SSc-pulmonary arterial hypertension (SSc-PAH) is associated with worse response to therapy and survival when compared with idiopathic PAH. It is suggested that the vasculopathy in SSc may involve postcapillary pulmonary venules resulting in pulmonary veno-occlusive disease (PVOD). This may underlie the lower gas transfer and worse outcome on therapy. We sought to test whether CT signs of PVOD (CTS-PVOD) were frequent in SSc-PAH and whether they were associated with pulmonary oedema on therapy and worse survival. Methods: CT thorax of 66 SSc patients with precapillary pulmonary hypertension (PH) were blindly scored by two radiologists for CTS-PVOD (?1 or ? 2). Case note and radiograph review determined the presence of pulmonary oedema on therapy. Results: Fifty-nine patients (89%) had ?1 CTS-PVOD and only 7 (11%) had ?2 CTS PVOD. Pulmonary oedema on therapy was relatively common in those with ?2 CTS PVOD. On univariate analysis ?2 CTS-PVOD were associated with a trend towards worse survival. Conclusion: CTS-PVOD were less frequent in this SSc-PAH cohort than in previous reports but the presence of at least two of these signs is associated with pulmonary oedema on therapy and a trend towards worse survival on univariate analysis. PMID- 29029202 TI - A Metabolomic Signature of Acute Caloric Restriction. AB - Context: The experimental paradigm of acute caloric restriction (CR) followed by refeeding (RF) can be used to study the homeostatic mechanisms that regulate energy homeostasis, which are relevant to understanding the adaptive response to weight loss. Objective: Metabolomics, the measurement of hundreds of small molecule metabolites, their precursors, derivatives, and degradation products, has emerged as a useful tool for the study of physiology and disease and was used here to study the metabolic response to acute CR. Participants, Design, and Setting: We used four ultra high-performance liquid chromatography-tandem mass spectrometry methods to characterize changes in carbohydrates, lipids, amino acids, and steroids in eight normal weight men at baseline, after 48 hours of CR (10% of energy requirements) and after 48 hours of ad libitum RF in a tightly controlled environment. Results: We identified a distinct metabolomic signature associated with acute CR characterized by the expected switch from carbohydrate to fat utilization with increased lipolysis and beta-fatty acid oxidation. We found an increase in omega-fatty acid oxidation and levels of endocannabinoids, which are known to promote food intake. These changes were reversed with RF. Several plasmalogen phosphatidylethanolamines (endogenous antioxidants) significantly decreased with CR (all P <= 0.0007). Additionally, acute CR was associated with an increase in the branched chain amino acids (all P <= 1.4 * 10 7) and dehydroepiandrosterone sulfate (P = 0.0006). Conclusions: We identified a distinct metabolomic signature associated with acute CR. Further studies are needed to characterize the mechanisms that mediate these changes and their potential contribution to the adaptive response to dietary restriction. PMID- 29029204 TI - Evidence of Premating Isolation Between Two Sibling Moths: Ectropis grisescens and Ectropis obliqua (Lepidoptera: Geometridae). AB - The sex pheromones of Ectropis grisescens Warren and Ectropis obliqua Prout were both reported to contain (Z,Z,Z)-3,6,9-octadecatriene (Z3,Z6,Z9-18:H) and (Z,Z) 3,9-cis-6,7-epoxy-octadecadiene (Z3,epo6,Z9-18:H). To clarify how these two sibling geometrids maintain premating isolation, the female sex pheromones of the two species were reexamined. Gas chromatography-electroantennographic detection (GC-EAD) and gas chromatography-mass spectrometry revealed two GC-EAD-active compounds, Z3,Z6,Z9-18:H and Z3,epo6,Z9-18:H, in E. grisescens female pheromone glands as well as an additional GC-EAD-active compound, (Z,Z)-3,9-cis-6,7-epoxy nonadecadiene (Z3,epo6,Z9-19:H), in E. obliqua female pheromone glands. Synthesized Z3,Z6,Z9-18:H and Z3,epo6,Z9-18:H elicited dose-dependent electroantennogram (EAG) responses from male antennae of both E. grisescens and E. obliqua. However, Z3,epo6,Z9-19:H only elicited dose-dependent EAG responses from E. obliqua and limited EAG responses from E. grisescens at all doses. In wind-tunnel studies, lures that contained Z3,Z6,Z9-18:H and Z3,epo6,Z9-18:H attracted E. grisescens males and had no effect on E. obliqua males. The addition of Z3,epo6,Z9-19:H to the blend of Z3,Z6,Z9-18:H and Z3,epo6,Z9-18:H strongly attracted E. obliqua males but had a limited attraction for E. grisescens males. Thus, Z3,Z6,Z9-18:H and Z3,epo6,Z9-18:H were sex pheromone components of E. grisescens, whereas Z3,Z6,Z9-18:H, Z3,epo6,Z9-18:H and Z3,epo6,Z9-19:H were sex pheromone components of E. obliqua. The presence or absence of Z3,epo6,Z9-19:H played a central role in the premating isolation of these two sibling species. PMID- 29029205 TI - Transcriptome Analysis of the Triatoma infestans (Hemiptera: Reduviidae) Integument. AB - The insect integument, formed by the cuticle and the underlying epidermis, is essential for insect fitness, regulation of lipid biosynthesis and storage, insect growth and feeding, together with development progress. Its participation in insecticide resistance has also been outlined. Triatoma infestans Klug (Hemiptera: Reduviidae) is one of the major vectors of Chagas disease in South America; however, genomic data are scarce. In this study, we performed a transcriptome analysis of the nymph integument in order to identify which genes are expressed and their putative role. Using the 454 GS-FLX sequencing platform, we obtained approximately 144,620 reads from the integument tissue. These reads were assembled into 6,495 isotigs and 8,504 singletons. Based on BLAST similarity searches, about 8,000 transcripts were annotated with known genes, conserved domains, and/or Gene Ontology terms.The most abundant transcripts corresponded to transcription factors and nucleic acid metabolism, membrane receptors, cell signaling, and proteins related to cytoskeleton, transport, and cell energy processes, among others. More than 10% of the transcripts-encoded proteins putatively involved in the metabolism of fatty acids and related components (fatty acid synthases, elongases, desaturases, fatty alcohol reductases), structural integument proteins, and the insecticide detoxification system (among them, cytochrome P450s, esterases, and glutathione transferases). Real-time qPCR assays were used to investigate their putative participation in the resistance mechanism. This preliminary study is the first transcriptome analysis of a triatomine integument, and together with prior biochemical information, will help further understandthe role of the integument in a wide array of mechanisms. PMID- 29029208 TI - Dust storms, heart attacks, and protecting those at risk. PMID- 29029207 TI - European Association of Preventive Cardiology (EAPC) and European Association of Cardiovascular Imaging (EACVI) joint position statement: recommendations for the indication and interpretation of cardiovascular imaging in the evaluation of the athlete's heart. PMID- 29029206 TI - Dissecting HIV Virulence: Heritability of Setpoint Viral Load, CD4+ T-Cell Decline, and Per-Parasite Pathogenicity. AB - Pathogen strains may differ in virulence because they attain different loads in their hosts, or because they induce different disease-causing mechanisms independent of their load. In evolutionary ecology, the latter is referred to as "per-parasite pathogenicity". Using viral load and CD4+ T-cell measures from 2014 HIV-1 subtype B-infected individuals enrolled in the Swiss HIV Cohort Study, we investigated if virulence-measured as the rate of decline of CD4+ T cells-and per parasite pathogenicity are heritable from donor to recipient. We estimated heritability by donor-recipient regressions applied to 196 previously identified transmission pairs, and by phylogenetic mixed models applied to a phylogenetic tree inferred from HIV pol sequences. Regressing the CD4+ T-cell declines and per parasite pathogenicities of the transmission pairs did not yield heritability estimates significantly different from zero. With the phylogenetic mixed model, however, our best estimate for the heritability of the CD4+ T-cell decline is 17% (5-30%), and that of the per-parasite pathogenicity is 17% (4-29%). Further, we confirm that the set-point viral load is heritable, and estimate a heritability of 29% (12-46%). Interestingly, the pattern of evolution of all these traits differs significantly from neutrality, and is most consistent with stabilizing selection for the set-point viral load, and with directional selection for the CD4+ T-cell decline and the per-parasite pathogenicity. Our analysis shows that the viral genotype affects virulence mainly by modulating the per-parasite pathogenicity, while the indirect effect via the set-point viral load is minor. PMID- 29029209 TI - Genetic Evidence for the Introduction of Rhagoletis pomonella (Diptera: Tephritidae) into the Northwestern United States. AB - The apple maggot fly, Rhagoletis pomonella Walsh (Diptera: Tephritidae), is a serious quarantine pest in the apple-growing regions of central Washington and Oregon. The fly is believed to have been introduced into the Pacific Northwest via the transport of larval-infested apples near Portland, Oregon, within the last 40 yr. However, R. pomonella also attacks native black hawthorn, Crataegus douglasii Lindley (Rosales: Rosaceae), and introduced ornamental hawthorn, Crataegus monogyna Jacquin, in the region. It is, therefore, possible that R. pomonella was not introduced but has always been present on black hawthorn. If true, then the fly may have independently shifted from hawthorn onto apple in the Pacific Northwest within the last 40 yr after apples were introduced. Here, we test the introduction hypothesis through a microsatellite genetic survey of 10 R. pomonella sites in Washington and 5 in the eastern United States, as well as a comparison to patterns of genetic variation between populations of Rhagoletis cingulata Loew and Rhagoletis indifferens Curran, two sister species of cherry infesting flies known to be native to the eastern and western United States, respectively. We report results based on genetic distance networks, patterns of allelic variation, and estimated times of population divergence that are consistent with the introduction hypothesis for R. pomonella. The results have important implications for R. pomonella management, suggesting that black hawthorn-infesting flies near commercial apple-growing regions of central Washington may harbor sufficient variation to utilize apple as an alternate host, urging careful monitoring, and possible removal of hawthorn trees near orchards. PMID- 29029211 TI - What is value health care and who is the judge? PMID- 29029210 TI - Lesinurad monotherapy in gout patients intolerant to a xanthine oxidase inhibitor: a 6 month phase 3 clinical trial and extension study. AB - Objective: To investigate the efficacy and safety of lesinurad, a selective uric acid reabsorption inhibitor, in a 6 month, phase 3 clinical trial and extension study. Methods: Patients with gout who cannot take a xanthine oxidase inhibitor (XOI) and have serum uric acid (sUA) ?6.5 mg/dl were randomized to receive oral lesinurad (400 mg daily) or placebo. The primary endpoint was the proportion of patients with sUA <6.0 mg/dl at month 6. Safety assessments included treatment emergent adverse events (TEAEs) and laboratory data. Patients who completed the study were eligible for an open-label, uncontrolled extension study of lesinurad 400 mg monotherapy. Results: Patients (n = 214) were primarily white males (mean age 54.4 years; gout duration 11.2 years). Significantly more patients achieved the primary endpoint with lesinurad than placebo (29.9 vs 1.9%; P < 0.0001). Overall TEAE rates were higher with lesinurad (77.6 vs 65.4%); renal-related TEAEs (17.8%), renal-related serious TEAEs (4.7%) and serum creatinine elevations (1.5 times baseline, 24.3%) occurred only with lesinurad. A total of 143 patients (65 lesinurad, 78 placebo) enrolled in the extension study. Treatment with lesinurad 400 mg resulted in rapid and sustained sUA lowering that persisted for up to 18 months before the study was terminated prematurely. No new safety findings were observed in the extension. Conclusion: In patients with gout and intolerance/contraindication to XOIs, lesinurad 400 mg monotherapy demonstrated superior sUA lowering compared with placebo, with sustained effects for up to 18 months. Due to a high incidence of serum creatinine elevations and renal-related adverse events, including serious adverse events with lesinurad 400 mg, lesinurad should not be used as monotherapy. Trial registration: ClinicalTrials.gov (http://clinincaltrials.gov), NCT01508702. PMID- 29029212 TI - Galaxy sign in alveolar sarcoidosis: An unusual radiological presentation of Lofgren's syndrome. PMID- 29029213 TI - Recovery Kinetics of Radiographic and Implant-Related Revision Patients Following Adult Spinal Deformity Surgery. AB - BACKGROUND: Prior studies have observed similar health-related quality of life (HRQL) in revisions and nonrevision (NR) patients following adult spinal deformity (ASD) correction. However, a novel comparison approach may allow better comparisons in spine outcomes groups. OBJECTIVE: To determine if ASD revisions for radiographic and implant-related complications undergo a different recovery than NR patients. METHODS: Inclusion: ASD patients with complete HRQL (Oswestry Disability Index, Short-Form-36 version 2 (SF-36), Scoliosis Research Society [SRS]-22) at baseline, 6 wk, 1 yr, 2 yr. Generated revision groups: nonrevision (NR), revised-complete data (RC; with follow-up 2 yr after revision), and revised incomplete data (RI; without 2-yr follow-up after revision). In a traditional analysis, analysis of variance (ANOVA) compared baseline HRQLs to follow-up changes. In a novel approach, integrated health state was normalized at baseline using area under curve analysis before ANOVA t-tests compared follow-up statuses. RESULTS: Two hundred fifty-eight patients were included with 50 undergoing reoperations (19.4%). Rod fractures (n = 15) and proximal joint kyphosis (n = 9) were most common. In standard HRQL analysis, comparing RC index surgery and RC revision surgery HRQLS revealed no significant differences throughout the 2-yr follow-up from either the initial index or revision procedure. Using normalized HRQL/integrated health state, RI displayed worse scores in SF-36 Physical Component Score, SRS activity, and SRS appearance relative to NR (P < .05), indicating less improvement over the 2-yr period. RC were significantly worse than RI in SF-36 Mental Component Score, SRS mental, SRS satisfaction, and SRS total (P < .05). CONCLUSION: ASD patients indicated for revisions for radiographic and implant-related complications differ significantly in their overall 2-yr recovery compared to NR, using a normalized integrated health state method. Traditional methods for analyzing revision patients' recovery kinetics may overlook delayed improvements. PMID- 29029215 TI - Child Sexual Abuse and Depression in Late Life for Men: A Population-Based, Longitudinal Analysis. AB - Objective: Research investigating long-term effects of childhood sexual abuse (CSA) on mental health for men is vastly underdeveloped. This study strengthened the knowledge base by examining: (a) long-term trajectories of depressive symptoms for men with and without a history of CSA, and (b) moderating effects of social support over time. Method: We analyzed multiple waves of data from the Wisconsin Longitudinal Study. The sample (N = 2,451) consisted of men with histories of CSA and a stratified, randomly sampled comparison group. Growth curve modeling was employed for analyses. Results: After controlling for demographic, parental, and health factors, men with CSA histories had greater depressive symptoms than those with no history of CSA. For both groups, depressive symptoms decreased over time; slope patterns did not differ. We found a significant moderating effect of social support on the relationship between CSA and depressive symptoms. Discussion: This innovative, population-based, longitudinal study demonstrated that CSA can undermine mental health for men across the life span and into old age. Social support appears to mitigate these deleterious effects. In early, middle, and late adulthood, practitioners should assess for CSA and strengthen support resources for male survivors. PMID- 29029214 TI - Sleepless Night and Day, the Plight of Progressive Supranuclear Palsy. AB - Objectives: To elucidate the unique sleep and waking characteristics in progressive supranuclear palsy (PSP), a neurodegenerative disease associated with motor deficits and dementia that largely affects the brainstem and thalamic regions. Methods: A total of 20 PSP and 16 healthy older adult controls participated in this study. The participants underwent an overnight polysomnography and multiple sleep latency test (MSLT) the following day. Prior to the MSLT last trial, they were asked to complete the Stanford Sleepiness Scale. Data were assessed for measures of latency to sleep onset, sleep duration, waking, and sleep staging during the night. Mean sleep latency, a measure of daytime sleepiness, sleep onset rapid eye movement (REM) periods, and microsleeps were studied with the MSLT. Spectral analysis of wake electroencephalogram (EEG) was performed for 30-second periods at the start of each MSLT trial. Results: PSP took significantly longer time to fall asleep (p < .001), slept less during the night (p <= .001), and had more wake after sleep onset than controls (p <= .001). PSP had less N2 sleep (p < .05) and N3 sleep (p < .05), and REM sleep (p < .001) than controls. During the MSLT, PSP took significantly longer to fall asleep (p < .001), did not have microsleeps when they remained awake throughout the assessment periods, but were subjectively sleepier than controls (p < .05). Gamma power was increased during wake EEG in PSP (p < .01). Conclusions: Sleep/waking regulation and REM sleep regulation are disrupted in PSP, leading to profound sleep deprivation without recuperation. Our findings suggest a diminished homeostatic sleep drive in PSP. This hyperaroused state is unique and is a severely disabling feature of PSP. PMID- 29029216 TI - Diversity and Distribution of Cryptic Species of the Bemisia tabaci (Hemiptera: Aleyrodidae) complex in Pakistan. AB - Bemisia tabaci (Gennadius; Hempitera: Aleyrodidae) is considered to be a cryptic (sibling) species complex, the members of which exhibit morphological invariability while being genetically and behaviorally distinct. Members of the complex are agricultural pests that cause direct damage by feeding on plants, and indirectly by transmitting viruses that cause diseases leading to reduced crop yield and quality. In Pakistan, cotton leaf curl disease, caused by multiple begomovirus species, is the most economically important viral disease of cotton. In the study outlined here, the diversity and geographic distribution of B. tabaci cryptic species was investigated by analyzing a taxonomically informative fragment of the mitochondrial cytochrome c oxidase 1 gene (mtCOI-3'). The mtCOI 3' sequence was determined for 285 adult whiteflies and found to represent six cryptic species, the most numerous being Asia II-1 and Middle East Asia Minor 1 (MEAM-1), the later also referred to as the B-biotype, which was previously thought to be confined to Sindh province but herein, was also found to be present in the Punjab province. The endemic Asia I was restricted to Sindh province, while an individual in the Asia II-8 was identified in Pakistan for the first time. Also for the first time, samples were collected from northwestern Pakistan and Asia II-1 was identified. Results indicate that in Pakistan the overall diversity of B. tabaci cryptic species is high and, based on comparisons with findings from previous studies, the distribution is dynamic. PMID- 29029217 TI - High levels of susceptibility to new and older antibiotics in Neisseria gonorrhoeae isolates from Saskatchewan (2003-15): time to consider point-of-care or molecular testing for precision treatment? AB - Objectives: The antimicrobial susceptibility of Neisseria gonorrhoeae isolates from Saskatchewan was determined retrospectively (2003-15) to ascertain temporal trends to both current and older antimicrobials used for treatment. Method: The agar dilution method was used to test the antimicrobial susceptibilities of 685 isolates to seven antibiotics. Results: Over the period, only three (0.4%) gonococcal isolates had reduced susceptibility to cefixime and/or ceftriaxone. All isolates were susceptible to spectinomycin. Over 95% of the isolates tested were susceptible to azithromycin except in 2010 and 2013 (27.6% and 7.2% resistant, respectively). One isolate was resistant to both azithromycin and cefixime. Ciprofloxacin resistance was seen in < 5% of isolates prior to 2010, but in > 5% thereafter. From 2006 to 2012, and in 2015, penicillin resistance was detected in < 5% (0%-4.0%) of isolates, but in > 5% for the rest of the study period. Tetracycline resistance remained >5% (11.8%-89.1%) throughout the study. Plasmid-mediated resistance to tetracycline fluctuated between 0% and 17.5% of isolates tested. Four isolates were MDR and two isolates were XDR. Conclusions: N. gonorrhoeae isolates were largely susceptible (~85%) to antibiotics no longer recommended for treatment, such as penicillin and ciprofloxacin. Gonorrhoea in Saskatchewan is primarily (>95%) diagnosed by nucleic acid amplification testing, which does not permit antimicrobial susceptibility testing. The development of molecular testing, or point-of-care tests, to evaluate antimicrobial susceptibility, would enhance knowledge of true levels of resistance and allow discretion as to whether older but still effective antibiotics could be used in individual patient care. PMID- 29029218 TI - Dose-Dependent Effects on Replication and Persistence of Salmonella enterica serovar Typhimurium in House Flies (Diptera: Muscidae). AB - Adult house flies (Musca domestica L.) ingest variable numbers of bacteria when they encounter microbe-rich substrates. Bacterial abundance may affect replication within the fly gut, which subsequently impacts vector potential. This study investigated the dose-dependent replication of GFP-expressing Salmonella enterica serovar Typhimurium (ex Kauffmann and Edwards1952) Le Minor and Popoff 1987, (Enterobacteriales: Enterobacteriaceae) (GFP S. Typhimurium) within the fly alimentary canal. Adult house flies were fed two doses (colony forming units, CFU) of GFP S. Typhimurium (high, ~105 CFU and low, ~104 CFU). Bacteria were examined at 2-, 4-, 6-, 12-, and 24-h postingestion (PI) in situ in the gut via epifluorescence microscopy and enumerated by culture on selective media. In both treatment groups, GFP S. Typhimurium proliferated and persisted in flies for 24 h. In the high-dose group, proliferation peaked at 6 h PI (>500% increase). In the low-dose group, proliferation peaked at both 4 and 6 h PI (>900% increase). Dose significantly affected bacterial replication within the house fly alimentary canal, particularly at 4-, 6-, and 12-h PI. The ability of S. Typhimurium to proliferate and persist in the alimentary canal demonstrates that house flies may serve as significant reservoirs and probable disseminators of this pathogen. Our results show that bacterial abundance should be considered when assessing the potential of house flies to harbor and transmit pathogens. PMID- 29029219 TI - Pupation Behavior and Predation on Drosophila suzukii (Diptera: Drosophilidae) Pupae in Maine Wild Blueberry Fields. AB - Drosophila suzukii (Matsumura; Diptera: Drosophilidae) is an invasive vinegar fly and pest of soft fruits in North America, including wild blueberries (Vaccinium angustifolium Aiton) in Maine. Despite its presence in the continental United States for 9 yr, little is known about its natural enemy complex. Here we report the results of a 3-yr study designed to identify naturally-occurring predators in Maine's wild blueberry fields. Experiments were conducted to determine pupation site and pupation depth to understand D. suzukii's predation vulnerability. Predation rates in the field of fully-exposed, caged, and buried pupae were measured. Pitfall traps were deployed to identify the potential predator assemblage, and laboratory experiments were conducted to determine how many pupae were consumed by commonly occurring ground beetle species (Carabidae) and field crickets (Gryllus pennsylvanicus Burmeister). The most commonly collected predators were ants, ground beetles, harvestmen, and field crickets. Significantly more pupae were found to occur in the soil compared to blueberry fruit, with most pupae in the top 0.5 cm layer of soil. Pupal predation rates in the field were high, with higher rates of predation on exposed pupae compared to buried pupae. Laboratory studies revealed that ground beetles and field crickets are likely predators of D. suzukii pupae. PMID- 29029220 TI - Effects of host traits and land-use changes on the gut microbiota of the Namibian black-backed jackal (Canis mesomelas). AB - Host traits and environmental factors drive the natural variation in gut microbiota, and disruption in homeostasis can cause infections and chronic diseases. African wildlife is increasingly facing human-induced agricultural habitats, which also amplifies the contact probability with livestock with unknown consequences for wildlife gut microbiotas and the risk of transmission of potentially pathogenic bacteria. We applied high-throughput sequencing of bacterial 16S rRNA genes and microsatellite genotyping to investigate the impact of host traits and habitat use on the gut microbiotas of black-backed jackals (Canis mesomelas). This abundant carnivore inhabits livestock and game farms in central Namibia and is often persecuted as pathogen reservoir and vector. We further compared the gut microbiotas of black-backed jackals to other wild and domestic carnivores, herbivores and an omnivore, to disentangle the effects of environment, host species and dietary preference. In black-backed jackals, intrinsic host traits had a stronger impact in shaping the host-bacteria relationship than environmental factors. Nevertheless, the abundance of bacterial operational taxonomic units (OTUs) differed in individuals from livestock and game farms for specific bacterial genera such as Lactobacillus and Clostridium. We found, however, no evidence that black-backed jackals harbour abnormal levels of OTUs related to potential bacterial pathogens or that livestock farming has a negative impact on their health. We present here the first study investigating simultaneously the impact of host traits and environmental factors on gut microbiotas of a wildlife carnivore that occurs in a human-modified habitat. PMID- 29029222 TI - The Scarring Effects of Father's Unemployment? Job-Security Satisfaction and Mental Health at Midlife. AB - Objectives: We investigate the association between early-life paternal unemployment and midlife mental health, examining whether the impact of father's unemployment may vary contingent on the broader economic context on which it occurred. We also investigate job-security satisfaction as a potential mediator of this association. Method: We utilize random-effects models, drawing on 15 waves of data from the Household, Income and Labour Dynamics in Australia (HILDA) Survey, with 7,438 individuals and 42,309 individual-time observations. Results: We find respondents whose father was unemployed report worse mental health at midlife (-2.27; p < .01), with the association being modest, though statistically significant. This association is also stronger for younger respondents, whose paternal unemployment was more likely during the economic downturn of the mid 1970s in Australia. Paternal unemployment is also associated with lower satisfaction with job security at midlife (-0.17; p < 0.05), which is related to worse mental health; however, it explains little of the association between paternal unemployment and mental health. Discussion: Existing research finds paternal unemployment relates to educational attainment, socioeconomic achievement, and wellbeing in the shorter term, but exposure to this event may also have enduring implications for the wellbeing of the offspring. PMID- 29029221 TI - Analysis of Clostridium difficile biofilms: imaging and antimicrobial treatment. AB - Background: Clostridium difficile, a spore-forming Gram-positive anaerobic bacillus, is the most common causative agent of healthcare-associated diarrhoea. Formation of biofilms may protect C. difficile against antibiotics, potentially leading to treatment failure. Furthermore, bacterial spores or vegetative cells may linger in biofilms in the gut causing C. difficile infection recurrence. Objectives: In this study, we evaluated and compared the efficacy of four antibiotics (fidaxomicin, surotomycin, vancomycin and metronidazole) in penetrating C. difficile biofilms and killing vegetative cells. Methods: C. difficile biofilms grown initially for 48 or 72 h using the colony biofilm model were then treated with antibiotics at a concentration of 25 * MIC for 24 h. Vegetative cells and spores were enumerated. The effect of treatment on biofilm structure was studied by scanning electron microscopy (SEM). The ability of fidaxomicin and surotomycin to penetrate biofilms was studied using fluorescently tagged antibiotics. Results: Both surotomycin and fidaxomicin were significantly more effective than vancomycin or metronidazole (P < 0.001) at killing vegetative cells in established biofilms. Fidaxomicin was more effective than metronidazole at reducing viable spore counts in biofilms (P < 0.05). Fluorescently labelled surotomycin and fidaxomicin penetrated C. difficile biofilms in < 1 h. After 24 h of treatment, SEM demonstrated that both fidaxomicin and surotomycin disrupted the biofilm structure, while metronidazole had no observable effect. Conclusions: Fidaxomicin is effective in disrupting C. difficile biofilms, killing vegetative cells and decreasing spore counts. PMID- 29029223 TI - Age and the Factor Structure of Emotional Experience in Adulthood. AB - Objectives: The current study examined the factor structure of emotional experience across adults 34-50, 51-65, and 66-84 year olds. Method: Participants (N = 2,022) were asked about 14 negative and 13 positive emotions across 8 days in the National Study of Daily Experiences II study. Factor analysis computed both inter-individual factors (between-person structure of emotional experience) and intra-individual factors (factors describing emotions in daily life) for each age group. Results: For inter-individual variation, one positive and one negative factor captured emotions experienced for the first two age groups, but the 66 to 84-year-old adults had an additional factor for anger. For intra-individual variation, two factors (fear and sadness; anger) captured negative emotions for the first two age groups. The oldest age group had three negative factors: fear; anger (with additional sadness emotions); and sadness. Four factors captured positive emotions for the middle-aged groups and three for the oldest group; interpersonally oriented emotions (e.g. sense of belonging) were the primary sources of age differences. Discussion: Findings suggest that subtle age differences exist in the factor structure of daily emotional experience when comparing middle-aged and older adults. PMID- 29029224 TI - Immunogenicity and Safety of an Adjuvanted Herpes Zoster Subunit Vaccine Coadministered With Seasonal Influenza Vaccine in Adults Aged 50 Years or Older. AB - Background: The immunogenicity and safety of an adjuvanted herpes zoster subunit (HZ/su) vaccine when coadministered with a quadrivalent seasonal inactivated influenza vaccine (IIV4) was investigated in a phase 3, open-label, randomized clinical trial in adults aged >=50 years. Methods: Subjects were randomized 1:1 to receive either HZ/su (varicella zoster virus glycoprotein E; AS01B Adjuvant System) and IIV4 at day 0 followed by a second HZ/su dose at month 2 (coadministration group), or IIV4 at month 0 and HZ/su at months 2 and 4 (control group). The primary objectives were the HZ/su vaccine response rate in the coadministration group and the noninferiority of the antibody responses to HZ/su and IIV4 in the coadministration compared with the control group. Safety information was collected throughout the duration of the study. Results: A total of 413 subjects were vaccinated in the coadministration group and 415 in the control group. The HZ/su vaccine response rate in the coadministration group was 95.8% (95% confidence interval, 93.3%-97.6%) and the anti-glycoprotein E GMCControl/Coadmin ratio was 1.08 (.97-1.20). The primary noninferiority objectives were met. No safety concerns were observed. Conclusions: No interference in the immune responses to either vaccine was observed when the vaccines were coadministered, and no safety concerns were identified. Clinical Trials Registration: NCT01954251. PMID- 29029227 TI - Local Versus Global Enterovirus (EV) Surveillance: A Discussion for the Need for Active Surveillance to Guide EV-A71 Vaccines. PMID- 29029229 TI - Implementing National HIV/AIDS Strategy 2015 Treatment Targets Is Cost-effective and Would Save Lives: What Other Evidence Do We Need? PMID- 29029225 TI - Glucocorticoid Signaling in Health and Disease: Insights From Tissue-Specific GR Knockout Mice. AB - Glucocorticoids are adrenally produced hormones critically involved in development, general physiology, and control of inflammation. Since their discovery, glucocorticoids have been widely used to treat a variety of inflammatory conditions. However, high doses or prolonged use leads to a number of side effects throughout the body, which preclude their clinical utility. The primary actions of glucocorticoids are mediated by the glucocorticoid receptor (GR), a transcription factor that regulates many complex signaling pathways. Although GR is nearly ubiquitous throughout the body, glucocorticoids exhibit cell- and tissue-specific effects. For example, glucocorticoids stimulate glucose production in the liver, reduce glucose uptake in the skeletal muscle, and decrease insulin secretion from the pancreatic beta-cells. Mouse models represent an important approach to understanding the dynamic functions of GR signaling in normal physiology, disease, and resistance. In the absence of a viable GR null model, gene-targeting techniques utilizing promoter-driven recombination have provided an opportunity to characterize the tissue-specific actions of GR. The aim of the present review is to describe the organ systems in which GR has been conditionally deleted and summarize the functions ascribed to glucocorticoid action in those tissues. PMID- 29029228 TI - Development of a Whole-Task Simulator for Carotid Endarterectomy. AB - BACKGROUND: Surgical education relies on operative exposure with live patients. Carotid endarterectomy (CEA) demands an experienced surgeon with a very low complication rate. The high-risk nature of this procedure and the decline in number of CEAs performed annually has created a gap in residency training. OBJECTIVE: To develop a high-fidelity whole-task simulation for CEA that demonstrates content, construct, and face validity. METHODS: Anatomically accurate models of the human neck were created using multilayered poly-vinyl alcohol hydrogels. Graded polymerization of the hydrogel was achieved by inducing crosslinks during freeze/thaw cycles, stiffening the simulated tissues to achieve realistic tactile properties. Venous bleeding was simulated using pressure bags and a ventricular assistive device created pulsatile flow in the carotid. Ten surgeons performed the simulation under operating room conditions, and metrics were compared among experience levels to determine construct validity. Participants completed surveys about realism and usefulness to evaluate face validity. RESULTS: A significant difference was found in operative measures between attending and resident physicians. The mean operative time for the expert group was 63.6 min vs 138.8 for the resident group (P = .002). There was a difference in mean internal carotid artery clamp time of 43.4 vs 83.2 min (P = .04). There were only 2 hypoglossal nerve injuries, both in the resident group (P = .009). CONCLUSION: The whole-task CEA simulator is a realistic, inexpensive model that offers comprehensive training and allows residents to master skills prior to operating on live patients. Overall, the model demonstrated face and construct validity among neurosurgery and vascular surgeons. PMID- 29029230 TI - Microbial organic acid production as carbon dioxide sink. AB - Mixed-substrate conversions are an under-regarded option to fix carbon dioxide in significant amounts. In such a conversion, carbon dioxide together with one other carbon source such as glucose is converted to a single carbon product. With mixed substrate conversions, it is possible to incorporate carbon dioxide into products with higher oxidation states than the co-substrate. Using abundant co-substrates such as glucose, glycerol or methanol, it is possible to produce organic acids anaerobically, using CO 2 both as an electron acceptor and as an additional carbon source. Here, we outline the thermodynamic feasibility to produce industrially important organic acids with this approach to provide guidance for future metabolic engineering endeavours. PMID- 29029226 TI - New Insights into the Genetic Basis of Monge's Disease and Adaptation to High Altitude. AB - Human high-altitude (HA) adaptation or mal-adaptation is explored to understand the physiology, pathophysiology, and molecular mechanisms that underlie long-term exposure to hypoxia. Here, we report the results of an analysis of the largest whole-genome-sequencing of Chronic Mountain Sickness (CMS) and nonCMS individuals, identified candidate genes and functionally validated these candidates in a genetic model system (Drosophila). We used PreCIOSS algorithm that uses Haplotype Allele Frequency score to separate haplotypes carrying the favored allele from the noncarriers and accordingly, prioritize genes associated with the CMS or nonCMS phenotype. Haplotypes in eleven candidate regions, with SNPs mostly in nonexonic regions, were significantly different between CMS and nonCMS subjects. Closer examination of individual genes in these regions revealed the involvement of previously identified candidates (e.g., SENP1) and also unreported ones SGK3, COPS5, PRDM1, and IFT122 in CMS. Remarkably, in addition to genes like SENP1, SGK3, and COPS5 which are HIF-dependent, our study reveals for the first time HIF-independent gene PRDM1, indicating an involvement of wider, nonHIF pathways in HA adaptation. Finally, we observed that down-regulating orthologs of these genes in Drosophila significantly enhanced their hypoxia tolerance. Taken together, the PreCIOSS algorithm, applied on a large number of genomes, identifies the involvement of both new and previously reported genes in selection sweeps, highlighting the involvement of multiple hypoxia response systems. Since the overwhelming majority of SNPs are in nonexonic (and possibly regulatory) regions, we speculate that adaptation to HA necessitates greater genetic flexibility allowing for transcript variability in response to graded levels of hypoxia. PMID- 29029231 TI - Analysis of Phylogenomic Tree Space Resolves Relationships Among Marsupial Families. AB - A fundamental challenge in resolving evolutionary relationships across the tree of life is to account for heterogeneity in the evolutionary signal across loci. Studies of marsupial mammals have demonstrated that this heterogeneity can be substantial, leaving considerable uncertainty in the evolutionary timescale and relationships within the group. Using simulations and a new phylogenomic data set comprising nucleotide sequences of 1550 loci from 18 of the 22 extant marsupial families, we demonstrate the power of a method for identifying clusters of loci that support different phylogenetic trees. We find two distinct clusters of loci, each providing an estimate of the species tree that matches previously proposed resolutions of the marsupial phylogeny. We also identify a well-supported placement for the enigmatic marsupial moles (Notoryctes) that contradicts previous molecular estimates but is consistent with morphological evidence. The pattern of gene-tree variation across tree-space is characterized by changes in information content, GC content, substitution-model adequacy, and signatures of purifying selection in the data. In a simulation study, we show that incomplete lineage sorting can explain the division of loci into the two tree-topology clusters, as found in our phylogenomic analysis of marsupials. We also demonstrate the potential benefits of minimizing uncertainty from phylogenetic conflict for molecular dating. Our analyses reveal that Australasian marsupials appeared in the early Paleocene, whereas the diversification of present-day families occurred primarily during the late Eocene and early Oligocene. Our methods provide an intuitive framework for improving the accuracy and precision of phylogenetic inference and molecular dating using genome-scale data. PMID- 29029232 TI - Immune checkpoint inhibitor-induced myo-fasciitis. PMID- 29029233 TI - Anticoagulation combined with antiplatelet therapy in patients with left ventricular thrombus after first acute myocardial infarction. AB - Aims: There are limited data about the optimal anti-thrombotic therapy for preventing embolism while minimizing bleeding events in patients with first acute myocardial infarction (AMI) complicated by left ventricular thrombus (LVT). Methods and results: Among 2301 consecutive patients with AMI hospitalized between 2001 and 2014, we studied 1850 patients with first AMI who discharged alive to investigate clinical characteristics, incidence of systemic embolism (SE), and association between anticoagulation and embolic or bleeding events. Left ventricular thrombus was diagnosed by echocardiography, left ventriculography, or cardiac magnetic resonance imaging in 92 (5.0%) patients (62 +/- 12 years). During a median follow-up period of 5.4 years (interquartile range 2.1-9.1 years), SE occurred in 15 of 92 patients with LVT (16.3%) and 51 of 1758 patients without LVT (2.9%), respectively. Kaplan-Meier analysis showed a significantly higher incidence of SE in the LVT group (log-rank test, P < 0.001). Multivariate analysis showed that LVT was an independent predictor of SE. Among the LVT patients treated with vitamin K antagonists (n = 84), we compared the patients with therapeutic range (TTR) >=50% (n = 34) and those with TTR <50% (n = 50). Only one embolic event developed in the TTR >=50% group and nine embolic events developed in the TTR <50% group (2.9% vs. 19%, P = 0.036). There was no difference in major bleeding events (TTR >=50%; 9% vs. TTR <50%; 8%, P = 0.89). Conclusion: Appropriate anticoagulation therapy may decrease the incidence of embolic events without increasing the incidence of bleeding events in patients with first AMI complicated by LV thrombus. PMID- 29029234 TI - Keeping education fresh-not just in microbiology. AB - Innovative practice from around the globe, addressing a range of recent educational themes and trends, was published in the FEMS Microbiology Letters virtual Thematic Issue 'Keeping Education Fresh' in October 2017. Its thought provoking content is reviewed here to more directly facilitate reflections and discussions in the professional community. The focus is on best practice approaches when enhancing student engagement, how to adjust those to the diversity of learners, learning situations and infrastructures, and to a broad range of subjects. The need for authentic learning and to move away from didactic teaching is emphasized. The 'students as researchers' theme is featured e.g. in context of service learning. Creative approaches are presented such as using performing arts, popular culture and gamification. The development of interdisciplinary and intercultural competences, and the exploration of socioscientific themes and philosophical issues are considered. Revisions of curricula and programmes, reflective of educational advancements and sector drivers, are discussed from undergraduate to postgraduate and professional specialist level also in light of problem-based learning, interactive distance and on-campus learning, and even the legacy of Massive Open Online Courses. Such changes always require resources and skills, and carry risks. Yet, innovation is a risk worth taking to keep education fresh. PMID- 29029235 TI - Predicting Nut Damage at Harvest Using Different in-Season Density Estimates of Amyelois Transitella: Analysis of Data from Commercial Almond Production. AB - Despite decades of research on management tactics for the navel orangeworm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae), on almonds, we still do not have an established means of using in-season pest-density estimates to predict damage to nuts at harvest. As a result, hull-split pesticide applications, although timed carefully to coincide with navel orangeworm oviposition and with crop vulnerability, are not tied to pest densities-thus falling short of our goals under modern pest management. Here we use an ecoinformatics approach, analyzing a pre-existing data set collected in commercial almond production in California, to ask: 1) are navel orangeworm density estimates obtained using different sampling methods in strong agreement with one another? and 2) can we use either single density estimates or combinations of density estimates to explain variation in nutmeat damage at harvest? We find that correlations between density estimates of navel orangeworm made over a single growing season are often weak, and suggest that density estimates taken closer to the time of harvest (catches of adult females between hull split and harvest; infestation of early-split nuts) may be most useful for predicting damage at harvest. Single-density estimates explained <=39.1% of variation in harvest damage, whereas a combination of predictors explained 51.5% of the total variance in nutmeat damage at harvest. Our results suggest that density estimates taken just prior to harvest may, with refinement, be usable within a predictive framework to guide late-season control decisions. PMID- 29029236 TI - First In-Human Experience With Complete Integration of Neuromodulation Device Within a Customized Cranial Implant. AB - BACKGROUND: Neuromodulation devices have the potential to transform modern day treatments for patients with medicine-resistant neurological disease. For instance, the NeuroPace System (NeuroPace Inc, Mountain View, California) is a Food and Drug Administration (FDA)-approved device developed for closed-loop direct brain neurostimulation in the setting of drug-resistant focal epilepsy. However, current methods require placement either above or below the skull in nonanatomic locations. This type of positioning has several drawbacks including visible deformities and scalp pressure from underneath leading to eventual wound healing difficulties, micromotion of hardware with infection, and extrusion leading to premature explantation. OBJECTIVE: To introduce complete integration of a neuromodulation device within a customized cranial implant for biocompatibility optimization and prevention of visible deformity. METHODS: We report a patient with drug-resistant focal epilepsy despite previous seizure surgery and maximized medical therapy. Preoperative imaging demonstrated severe resorption of previous bone flap causing deformity and risk for injury. She underwent successful responsive neurostimulation device implantation via complete integration within a clear customized cranial implant. RESULTS: The patient has recovered well without complication and has been followed closely for 180 d. Device interrogation with electrocorticographic data transmission has been successfully performed through the clear implant material for the first time with no evidence of any wireless transmission interference. CONCLUSION: Cranial contour irregularities, implant site infection, and bone flap resorption/osteomyelitis are adverse events associated with implantable neurotechnology. This method represents a novel strategy to incorporate all future neuromodulation devices within the confines of a low-profile, computer designed cranial implant and the newfound potential to eliminate contour irregularities, improve outcomes, and optimize patient satisfaction. PMID- 29029238 TI - Toward Understanding the Outcomes of Monkeypox Infection in Human Pregnancy. PMID- 29029237 TI - CPAP Does Not Reduce Inflammatory Biomarkers in Patients With Coronary Artery Disease and Nonsleepy Obstructive Sleep Apnea: A Randomized Controlled Trial. AB - Objectives: Obstructive sleep apnea (OSA) and enhanced vascular inflammation coexist in patients with coronary artery disease (CAD). Continuous positive airway pressure (CPAP) is first-line treatment for OSA with daytime sleepiness. This analysis of data from the RICCADSA (Randomized Intervention with CPAP in Coronary Artery Disease and Sleep Apnea) trial investigated the effects of CPAP on inflammatory markers in patients with CAD and nonsleepy OSA. Methods: This single-center, randomized, controlled, open-label trial enrolled consecutive revascularized patients with nonsleepy OSA (apnea-hypopnea index >15/h; Epworth Sleepiness Scale score <10). Levels of high-sensitivity C-reactive protein (hs CRP), interleukin (IL)-6, IL-8, and tumor necrosis factor-alpha (TNF-alpha) were measured in blood samples taken at baseline (median 94 days after revascularization) and after 1 year of follow-up in patients randomized to CPAP or no-CPAP. Results: A total of 220 patients with analyzable blood samples at baseline and 1 year were included. Baseline IL-6 levels were significantly lower in the CPAP versus no-CPAP group (median 3.1 pmol/L [interquartile range 1.3-5.7] vs. 4.2 pmol/L [2.0-8.9], respectively; p = .005). At 1-year follow-up, median IL 6 levels were significantly reduced in both groups (to 2.2 pmol/L [1.2-3.9] in the CPAP group and to 2.2 [1.2-4.7] in no-CPAP group; both p < .001 vs. baseline). IL-8, hs-CRP, and TNF-alpha did not change significantly from baseline. There was no association between CPAP adherence and changes in inflammatory marker levels. Conclusions: In patients with stable CAD and nonsleepy OSA, inflammatory biomarkers did not change significantly over time except for IL-6 levels, which reduced to the same extent in the CPAP and no-CPAP groups. Clinical Trial Registration: ClinicalTrials.gov, ID: NCT00519597; researchweb.org, VGSKAS-4731. PMID- 29029239 TI - What Does the Sleeping Brain Say? Syntax and Semantics of Sleep Talking in Healthy Subjects and in Parasomnia Patients. AB - Objectives: Speech is a complex function in humans, but the linguistic characteristics of sleep talking are unknown. We analyzed sleep-associated speech in adults, mostly (92%) during parasomnias. Methods: The utterances recorded during night-time video-polysomnography were analyzed for number of words, propositions and speech episodes, frequency, gaps and pauses (denoting turn taking in the conversation), lemmatization, verbosity, negative/imperative/interrogative tone, first/second person, politeness, and abuse. Results: Two hundred thirty-two subjects (aged 49.5 +/- 20 years old; 41% women; 129 with rapid eye movement [REM] sleep behavior disorder and 87 with sleepwalking/sleep terrors, 15 healthy subjects, and 1 patient with sleep apnea speaking in non-REM sleep) uttered 883 speech episodes, containing 59% nonverbal utterance (mumbles, shouts, whispers, and laughs) and 3349 understandable words. The most frequent word was "No": negations represented 21.4% of clauses (more in non-REM sleep). Interrogations were found in 26% of speech episodes (more in non REM sleep), and subordinate clauses were found in 12.9% of speech episodes. As many as 9.7% of clauses contained profanities (more in non-REM sleep). Verbal abuse lasted longer in REM sleep and was mostly directed toward insulting or condemning someone, whereas swearing predominated in non-REM sleep. Men sleep talked more than women and used a higher proportion of profanities. Apparent turn taking in the conversation respected the usual language gaps. Conclusions: Sleep talking parallels awake talking for syntax, semantics, and turn-taking in conversation, suggesting that the sleeping brain can function at a high level. Language during sleep is mostly a familiar, tensed conversation with inaudible others, suggestive of conflicts. PMID- 29029240 TI - A Greater Extent of Insomnia Symptoms and Physician-Recommended Sleep Medication Use Predict Fall Risk in Community-Dwelling Older Adults. AB - Study Objectives: Cross-sectional studies suggest that insomnia symptoms are associated with falls in later life. This longitudinal study examines the independent and interactive effects of the extent of insomnia symptoms (i.e., multiple co-existing insomnia symptoms) and sleep medications on fall risk over a 2-year follow-up among community-dwelling older adults. Methods: Using data from the Health and Retirement Study (2006-2014, N = 6882, Mage = 74.5 years +/- 6.6 years), we calculated the extent of insomnia symptoms (range = 0-4) participants reported (i.e., trouble falling asleep, waking up during the night, waking up too early, and not feeling rested). At each wave, participants reported recent sleep medications use and falls since the last wave, and were evaluated for balance and walking speed. Results: A greater burden of insomnia symptoms and using physician recommended sleep medications at baseline independently predicted falling after adjusting for known risk factors of falling. The effects of insomnia symptoms on fall risk differed by sleep medications use. The extent of insomnia symptoms exhibited a positive, dose-response relation with risk of falling among those not using sleep medications. Older adults using physician-recommended sleep medications exhibited a consistently higher fall risk irrespective of the extent of insomnia symptoms. Conclusions: The number of insomnia symptoms predicts 2 year fall risk in older adults. Taking physician-recommended sleep medications increases the risks for falling in older adults, irrespective of the presence of insomnia symptoms. Future efforts should be directed toward treating insomnia symptoms, and managing and selecting sleep medications effectively to decrease the risk of falling in older adults. PMID- 29029241 TI - Fragmentary Gene Sequences Negatively Impact Gene Tree and Species Tree Reconstruction. AB - Species tree reconstruction from genome-wide data is increasingly being attempted, in most cases using a two-step approach of first estimating individual gene trees and then summarizing them to obtain a species tree. The accuracy of this approach, which promises to account for gene tree discordance, depends on the quality of the inferred gene trees. At the same time, phylogenomic and phylotranscriptomic analyses typically use involved bioinformatics pipelines for data preparation. Errors and shortcomings resulting from these preprocessing steps may impact the species tree analyses at the other end of the pipeline. In this article, we first show that the presence of fragmentary data for some species in a gene alignment, as often seen on real data, can result in substantial deterioration of gene trees, and as a result, the species tree. We then investigate a simple filtering strategy where individual fragmentary sequences are removed from individual genes but the rest of the gene is retained. Both in simulations and by reanalyzing a large insect phylotranscriptomic data set, we show the effectiveness of this simple filtering strategy. PMID- 29029243 TI - Considerations in the Use of MDS Research Criteria for Prodromal Parkinson's in Rapid Eye Movement Sleep Behaviour Disorder and Population Cohorts. PMID- 29029242 TI - Germ Cell Neoplasia in Situ and Preserved Fertility Despite Suppressed Gonadotropins in a Patient With Testotoxicosis. AB - Context: Testotoxicosis is an autosomal-dominant, male-limited disorder. Activating mutations in the luteinizing hormone receptor gene (LHCGR) cause high autonomous testosterone secretion, resulting in early-onset peripheral precocious puberty. Little is known about long-term consequences of testotoxicosis. Case Description: We present a rare case of a patient followed for 25 years with two remarkable outcomes: preserved fertility and germ cell neoplasia in situ (GCNIS). He presented with precocious puberty at 10 months of age and was diagnosed with testotoxicosis due to a de novo heterozygous Asp578Tyr mutation in LHCGR. Testicular biopsy in childhood showed Leydig cell hyperplasia with altered cell maturation. From infancy throughout adulthood, elevated testosterone and estradiol, low inhibin B and anti-Mullerian hormone, and completely suppressed follicle-stimulating hormone and luteinizing hormone were noted. Height acceleration and advanced bone age resulted in a reduced final height. Semen analysis revealed ongoing spermatogenesis, and the patient fathered a child by natural conception. Ketoconazole treatment decreased circulating testosterone in childhood, supported by experimental suppression of testosterone production in his adult testis tissue cultured ex vivo. At 25 years of age, ultrasound revealed a testicular tumor, identified as a Leydig cell adenoma, but unexpectedly with GCNIS present in adjacent seminiferous tubules. Conclusion: The case illustrates that absence of gonadotropins but high intratesticular testosterone concentration is sufficient for spermatogenesis and to allow fatherhood. Our study is also the first description, to our knowledge, of GCNIS in a patient with testotoxicosis. We recommend regular clinical examination and ultrasonic evaluation of the testes in these patients due to potential increased risk of malignancy. PMID- 29029244 TI - ELMO1 Regulates Autophagy Induction and Bacterial Clearance During Enteric Infection. AB - Macrophages are specialized phagocytic cells involved in clearing invading pathogens. Previously we reported that engulfment and cell motility protein 1 (ELMO1) in macrophages mediates bacterial internalization and intestinal inflammation. Here we studied the role of ELMO1 in the fate of internalized targets. ELMO1 is present in the intracellular vesicles and enhances accumulation of the protein LC3B following engulfment of Salmonella or treatment with autophagy-inducing rapamycin. The protein ATG5 and the kinase ULK1 are involved in classical autophagy, while LC3-associated phagocytosis is ULK1 independent. ATG5 but not ULK1 cooperated with ELMO1 in LC3 accumulation after infection, suggesting the ELMO1 preferentially regulated LC3-associated phagocytosis. Because LC3-associated phagocytosis delivers cargo for degradation, the contribution of ELMO1 to the lysosome degradation pathways was evaluated by studying pH and cathepsin B activity. ELMO1-depleted macrophages showed a time dependent increase in pH and a decrease in cathepsin B activity associated with bacterial survival. Together, ELMO1 regulates LC3B accumulation and antimicrobial responses involved in the clearance of enteric pathogens. This paper investigated how innate immune pathways involving ELMO1 work in a coordinated fashion to eliminate bacterial threats. ELMO1 is present in the phagosome and enhances bacterial clearance by differential regulation of lysosomal acidification and enzymatic activity. PMID- 29029246 TI - The epidermal growth factor network: role in oocyte growth, maturation and developmental competence. AB - BACKGROUND: The LH surge induces great physiological changes within the preovulatory follicle, which culminate in the ovulation of a mature oocyte that is capable of supporting embryo and foetal development. However, unlike mural granulosa cells, the oocyte and its surrounding cumulus cells are not directly responsive to LH, indicating that the LH signal is mediated by secondary factors produced by the granulosa cells. The mechanisms by which the oocyte senses the ovulatory LH signal and hence prepares for ovulation has been a subject of considerable controversy for the past four decades. Within the last 15 years several significant insights have been made into the molecular mechanisms orchestrating oocyte development, maturation and ovulation. These findings centre on the epidermal growth factor (EGF) pathway and the role it plays in the complex signalling network that finely regulates oocyte maturation and ovulation. OBJECTIVE AND RATIONALE: This review outlines the role of the EGF network during oocyte development and regulation of the ovulatory cascade, and in particular focuses on the effect of the EGF network on oocyte developmental competence. Application of this new knowledge to advances in ART is examined. SEARCH METHODS: The PubMed database was used to search for peer-reviewed original and review articles concerning the EGF network. Publications offering a comprehensive description of the role of the EGF network in follicle and oocyte development were used. OUTCOMES: It is now clear that acute upregulation of the EGF network is an essential component of the ovulatory cascade as it transmits the LH signal from the periphery of the follicle to the cumulus-oocyte complex (COC). More recent findings have elucidated new roles for the EGF network in the regulation of oocyte development. EGF signalling downregulates the somatic signal 3'5' cyclic guanine monophosphate that suppresses oocyte meiotic maturation and simultaneously provides meiotic inducing signals. The EGF network also controls translation of maternal transcripts in the quiescent oocyte, a process that is integral to oocyte competence. As a means of restricting the ovulatory signal to the Graffian follicle, most COCs in the ovary are unresponsive to EGF-ligands. Recent studies have revealed that development of a functional EGF signalling network in cumulus cells requires dual endocrine (FSH) and oocyte paracrine cues (growth differentiation factor 9 and bone morphogenetic protein 15), and this occurs progressively in COCs during the last stages of folliculogenesis. Hence, a new concept to emerge is that cumulus cell acquisition of EGF receptor responsiveness represents a developmental hallmark in folliculogenesis, analogous to FSH-induction of LH receptor signalling in mural granulosa cells. Likewise, this event represents a major milestone in the oocyte's developmental progression and acquisition of developmental competence. It is now clear that EGF signalling is perturbed in COCs matured in vitro. This has inspired novel concepts in IVM systems to ameliorate this perturbation, resulting in improved oocyte developmental competence. WIDER IMPLICATIONS: An oocyte of high quality is imperative for fertility. Elucidating the fundamental molecular and cellular mechanims by which the EGF network regulates oocyte maturation and ovulation can be expected to open new opportunities in ART. This knowledge has already led to advances in oocyte IVM in animal models. Translation of such advances into a clinical setting should increase the efficacy of IVM, making it a viable treatment option for a wide range of patients, thereby simplifying fertility treatment and bringing substantial cost and health benefits. PMID- 29029245 TI - Host Transcription Profile in Nasal Epithelium and Whole Blood of Hospitalized Children Under 2 Years of Age With Respiratory Syncytial Virus Infection. AB - Background: Most insights into the cascade of immune events after acute respiratory syncytial virus (RSV) infection have been obtained from animal experiments or in vitro models. Methods: In this study, we investigated host gene expression profiles in nasopharyngeal (NP) swabs and whole blood samples during natural RSV and rhinovirus (hRV) infection (acute versus early recovery phase) in 83 hospitalized patients <2 years old with lower respiratory tract infections. Results: Respiratory syncytial virus infection induced strong and persistent innate immune responses including interferon signaling and pathways related to chemokine/cytokine signaling in both compartments. Interferon-alpha/beta, NOTCH1 signaling pathways and potential biomarkers HIST1H4E, IL7R, ISG15 in NP samples, or BCL6, HIST2H2AC, CCNA1 in blood are leading pathways and hub genes that were associated with both RSV load and severity. The observed RSV-induced gene expression patterns did not differ significantly in NP swab and blood specimens. In contrast, hRV infection did not as strongly induce expression of innate immunity pathways, and significant differences were observed between NP swab and blood specimens. Conclusions: We conclude that RSV induced strong and persistent innate immune responses and that RSV severity may be related to development of T follicular helper cells and antiviral inflammatory sequelae derived from high activation of BCL6. PMID- 29029247 TI - Plasmodium falciparum Infection Early in Pregnancy has Profound Consequences for Fetal Growth. AB - Malaria during pregnancy constitutes a large health problem in areas of endemicity. The World Health Organization recommends that interventions are initiated at the first antenatal visit, and these improve pregnancy outcomes. This study evaluated fetal growth by ultrasonography and birth outcomes in women who were infected prior to the first antenatal visit (gestational age, <120 days) and not later in pregnancy. Compared with uninfected controls, women with early Plasmodium falciparum exposure had retarded intrauterine growth between gestational ages of 212 and 253 days (difference between means, 107 g [95% confidence interval {CI}, 26-188]; P = .0099) and a shorter pregnancy duration (difference between means, 6.6 days [95% CI, 1.0-112.5]; P = .0087). The birth weight (difference between means, 221 g [95% CI, 6-436]; P = .044) and the placental weight (difference between means, 84 g [95% CI, 18-150]; P = .013) at term were also reduced. The study suggests that early exposure to P. falciparum, which is not targeted for prevention by current control strategies, has a profound impact on fetal growth, pregnancy duration, and placental weight at term. PMID- 29029249 TI - Prognostic Factors in Patients With Spinal Chordoma: An Integrative Analysis of 682 Patients. PMID- 29029248 TI - Efficacy of Nanoencapsulated Thymus eriocalyx and Thymus kotschyanus Essential Oils by a Mesoporous Material MCM-41 Against Tetranychus urticae (Acari: Tetranychidae). AB - Inspite of well-established potentiality of plant essential oils as biopesticides, their environmentally low persistence is considered as a hindering obstacle for its commercialization. In the present study, chemical composition and toxicity of essential oils isolated from leaves of Thymus eriocalyx and Thymus kotschyanus were evaluated against two-spotted spider mite, Tetranychus urticae. The chemicals present in the crude oil were found to be thymol (28.83%), oleic acid (11.51%), palmitic acid (8.60%), borneol (5.72%), rho-cymene (3.60%), and 1,8-cineole (3.57%) in the essential oil of T. eriocalyx, and camphene (35.59%), linalyl acetate (20.47%), linalool (14.75%), alpha-terpineol (13.87%), and geranyl acetate (3.07%) in the essential oil of T. kotschyanus. The essential oils had strong fumigant toxicity on the adult females of Te. urticae and their fumigation persistence was prolonged until 6 and 5 d, respectively, for T. eriocalyx and T. kotschyanus. Loading of essential oils in MCM-41 increased their stability and persistence was extended up to 20 and 18 d for T. eriocalyx and T. kotschyanus. Further, mite mortality increased from 80 to 203 mites by T. eriocalyx and from 58 to 186 mites by T. kotschyanus nanoencapsulated essential oils. Based on these results, nanoencapsulation of T. eriocalyx and T. kotschyanus essential oils in MCM-41 may be a useful method for their application in the management of Te. urticae. PMID- 29029251 TI - Effects of the Botanical Compound p-Anisaldehyde on Horn Fly (Diptera: Muscidae) Repellency, Mortality, and Reproduction. AB - The horn fly, Haematobia irritans irritans (L.) (Diptera: Muscidae), is an economically important obligate blood feeder that mainly attacks cattle in Europe, Asia, and North and South America. As horn fly resistance to conventional insecticides becomes more common, alternative control tactics, such as application of bioactive botanical natural products are being investigated. p Anisaldehyde has been found in many plant species, and it has shown effects that include mortality, attractancy, and interference with host seeking. The series of bioassays we developed was effective for assessing a range of horn fly responses to chemicals and probably those of some other filth fly species. In our study, p anisaldehyde was lethal to horn fly eggs at concentrations of 0.00001%, and possibly less. Mixed into cow manure, 5000-20,000 ppm p-anisaldehyde reduced horn fly larvae by 85.4%-100%. p-Anisaldehyde caused some immobilization of adult horn flies when exposed by direct contract with spray droplets and by fumigation. Mortality was 90%-100% in response to 5%-10% concentrations by 30 min, and LD50 and LD90 values are reported for five times from 30 min-4 h. Complete horn fly mortality was achieved by fumigation with 0.75% p-anisaldehyde by 3 h in an enclosed space, and we determined that fumigation was more (~12.5-fold) lethal to adult horn flies than sprayed droplets. Although horn flies were not repelled by p-anisaldehyde in static air tube olfactometers, the compound completely deterred feeding from cotton pads soaked in bovine blood in response to concentrations of 0.6% and greater in ventilated containers. Although horn fly control is not likely to use fumigation methods, p-anisaldehyde might be useful for adult control using sprays and egg and larval control using feed-through techniques. Exposure to sublethal concentrations of p-anisaldehyde did not affect horn fly egg production and hatching. Aside from causing different responses in the same species of arthropod, p-anisaldehyde has a variety of effects on other arthropods. Research on this compound as a potentially multifaceted pest management tool has been sparse. This study, for example, is the first to demonstrate p-anisaldehyde's feeding deterrent and immobilization properties and effects on different life stages. PMID- 29029250 TI - Actigraphy-Derived Daily Rest-Activity Patterns and Body Mass Index in Community Dwelling Adults. AB - Study Objectives: To examine associations between 24-hour rest-activity patterns and body mass index (BMI) among community-dwelling US adults. Rest-activity patterns provide a field method to study exposures related to circadian rhythms. Methods: Adults (N = 578) wore an actigraph on their nondominant wrist for 7 days. Intradaily variability and interdaily stability (IS), M10 (most active 10 hours), L5 (least active 5-hours), and relative amplitude (RA) were derived using nonparametric rhythm analysis. Mesor, acrophase, and amplitude were calculated from log-transformed count data using the parametric cosinor approach. Results: Participants were 80% female and mean (standard deviation) age was 52 (15) years. Participants with higher BMI had lower values for magnitude, RA, IS, total sleep time (TST), and sleep efficiency. In multivariable analyses, less robust 24-hour rest-activity patterns as represented by lower RA were consistently associated with higher BMI: comparing the bottom quintile (least robust) to the top quintile (most robust 24-hour rest-activity pattern) of RA, BMI was 3-kg/m2 higher (p = .02). Associations were similar in magnitude to an hour less of TST (1-kg/m2 higher BMI) or a 10% decrease in sleep efficiency (2-kg/m2 higher BMI), and independent of age, sex, race, education, and the duration of rest and/or activity. Conclusions: Lower RA, reflecting both higher night activity and lower daytime activity, was associated with higher BMI. Independent of the duration of rest or activity during the day or night, 24-hour rest, and activity patterns from actigraphy provide aggregated measures of activity that associate with BMI in community-dwelling adults. PMID- 29029252 TI - Time-on-Task Effect During Sleep Deprivation in Healthy Young Adults Is Modulated by Dopamine Transporter Genotype. AB - Study Objectives: The time-on-task (TOT) effect and total sleep deprivation (TSD) have similar effects on neurobehavioral functioning, including increased performance instability during tasks requiring sustained attention. The TOT effect is exacerbated by TSD, suggesting potentially overlapping mechanisms. We probed these mechanisms by investigating genotype-phenotype relationships on psychomotor vigilance test (PVT) performance for 3 a-priori selected genes previously linked to the TOT effect and/or TSD: dopamine active transporter 1 (DAT1), catechol-O-methyltransferase (COMT), and tumor necrosis factor alpha (TNFalpha). Methods: N = 82 healthy adults participated in 1 of 3 laboratory studies. A 10-min PVT was administered repeatedly during 38 h of TSD. We assessed changes in response time (RT) across each minute of the PVT as a function of time awake and genotype. Additionally, cumulative relative RT frequency distributions were constructed to examine changes in performance from the first to the second 5 min of the PVT as a function of genotype. Results: DAT1, COMT, and TNFalpha were associated with differences in the build-up of the TOT effect across the 10-min PVT. DAT1 additionally modulated the interaction between TSD and the TOT effect. Subjects homozygous for the DAT1 10-repeat allele were relatively protected against TOT deficits on the PVT during TSD compared to carriers of the 9-repeat allele. Conclusions: DAT1 is known to regulate dopamine reuptake and is highly expressed in the striatum. Our results implicate striatal dopamine in mechanisms involved in performance instability that appear to be common to TSD and the TOT effect. Furthermore, DAT1 may be a candidate biomarker of resilience to the build up of performance impairment across TOT due to TSD. PMID- 29029254 TI - Retrospective Proteomic Analysis of Serum After Akhmeta Virus Infection: New Suspect Case Identification and Insights Into Poxvirus Humoral Immunity. AB - Serologic cross-reactivity, a hallmark of orthopoxvirus (OPXV) infection, makes species-specific diagnosis of infection difficult. In this study, we used a variola virus proteome microarray to characterize and differentiate antibody responses to nonvaccinia OPXV infections from smallpox vaccination. The profile of 2 case patients infected with newly discovered OPXV, Akhmeta virus, exhibited antibody responses of greater intensity and broader recognition of viral proteins and includes the B21/22 family glycoproteins not encoded by vaccinia virus strains used as vaccines. An additional case of Akhmeta virus, or nonvaccinia OPXV infection, was identified through community surveillance of individuals with no or uncertain history of vaccination and no recent infection. The results demonstrate the utility of microarrays for high-resolution mapping of antibody response to determine the nature of OPXV exposure. PMID- 29029253 TI - Breathing Disturbances Without Hypoxia Are Associated With Objective Sleepiness in Sleep Apnea. AB - Study Objectives: To determine whether defining two subtypes of sleep-disordered breathing (SDB) events-with or without hypoxia-results in measures that are more strongly associated with hypertension and sleepiness. Methods: A total of 1022 participants with 2112 nocturnal polysomnograms from the Wisconsin Sleep Cohort were analyzed with our automated algorithm, developed to detect breathing disturbances and desaturations. Breathing events were time-locked to desaturations, resulting in two indices-desaturating (hypoxia-breathing disturbance index [H-BDI]) and nondesaturating (nonhypoxia-breathing disturbance index [NH-BDI]) events-regardless of arousals. Measures of subjective (Epworth Sleepiness Scale) and objective (2981 multiple sleep latency tests from a subset of 865 participants) sleepiness were analyzed, in addition to clinically relevant clinicodemographic variables. Hypertension was defined as BP >= 140/90 or antihypertensive use. Results: H-BDI, but not NH-BDI, correlated strongly with SDB severity indices that included hypoxia (r >= 0.89, p <= .001 with 3% oxygen desaturation index [ODI] and apnea hypopnea index with 4% desaturations). A doubling of desaturation-associated events was associated with hypertension prevalence, which was significant for ODI but not H-BDI (3% ODI OR = 1.06, 95% CI = 1.00-1.12, p < .05; H-BDI OR 1.04, 95% CI = 0.98-1.10) and daytime sleepiness (beta = 0.20 Epworth Sleepiness Scale [ESS] score, p < .0001; beta = -0.20 minutes in MSL on multiple sleep latency test [MSLT], p < .01). Independently, nondesaturating event doubling was associated with more objective sleepiness (beta = -0.52 minutes in MSL on MSLT, p < .001), but had less association with subjective sleepiness (beta = 0.12 ESS score, p = .10). In longitudinal analyses, baseline nondesaturating events were associated with worsening of H-BDI over a 4 year follow-up, suggesting evolution in severity. Conclusions: In SDB, nondesaturating events are independently associated with objective daytime sleepiness, beyond the effect of desaturating events. PMID- 29029255 TI - Plasmids can transfer to Clostridium difficile CD37 and 630Deltaerm both by a DNase resistant conjugation-like mechanism and a DNase sensitive mechanism. AB - Broad host range conjugative plasmids that replicate in Escherichia coli have been widely used to mobilise smaller replicons, bearing their cognate origin of transfer (oriT) into a variety of organisms that are less tractable genetically, such as Clostridium (Clostridioides) difficile. In this work we demonstrated that the oriT region of pMTL9301 (derived from RK2) is not required for transfer between E. coli and C. difficile strains 630Deltaerm and CD37 and that this oriT independent transfer is abolished in the presence of DNase when CD37 is the recipient. Transfer to the 630Deltaerm strain is DNase resistant even without an obvious oriT, when E. coli CA434 is used as a donor and is sensitive to DNase when E. coli HB101 is the donor. PMID- 29029256 TI - Multicentre validation of 4-well azole agar plates as a screening method for detection of clinically relevant azole-resistant Aspergillus fumigatus. AB - Objectives: Azole-resistant Aspergillus fumigatus is emerging worldwide. Reference susceptibility testing methods are technically demanding and no validated commercial susceptibility tests for moulds currently exist. In this multicentre study a 4-well azole-containing screening agar method was evaluated using clinically relevant isolates. Methods: Forty WT and 39 cyp51A mutant A. fumigatus [G54 (n = 10), M220 (n = 10), TR34/L98H (n = 9) and TR46/Y121F/T289A (n = 10)] were tested individually and as simulated mixed samples (sampling 4 WT and 1 mutant colonies). EUCAST MICs were determined following E.Def 9.3. In-house and commercial 4-well plates containing agars supplemented with 4 mg/L itraconazole, 1 mg/L voriconazole, 0.5 mg/L posaconazole and no antifungal, respectively, were evaluated. Growth was scored (0-3) by two independent observers in three laboratories. Inter-plate, inter-observer, essential and categorical agreement, sensitivity and specificity were calculated. Results: CYP51A genotype and antifungal compound-specific MICs and growth patterns were documented. The inter observer agreement was excellent with 86%-99% identical scores (range 80%-100%) for both plates. The qualitative agreement (no growth versus growth) was excellent (median 95%-100%, range 87%-100%, overall). The overall sensitivity and specificity for the 4-well plate (no growth versus growth) was 99% (range 97% 100%) and 99% (95%-100%), respectively. The sensitivity for simulated WT/mutant specimens was 94% (range 83%-100%) for the WT-TR34/L98H combination, but 100% for the WT/G54W combination. The performance remained unchanged using only itraconazole- and voriconazole-containing agars, but was lower for the other combinations. Conclusions: Implementation of the 4-well screening plate in routine laboratories will allow easy and reliable detection of the most common azole-resistant A. fumigatus. PMID- 29029258 TI - Acupuncture Improves Peri-menopausal Insomnia: A Randomized Controlled Trial. AB - Study Objectives: To evaluate the short-term efficacy of acupuncture for the treatment of peri-menopausal insomnia (PMI). Methods: Design: A randomized, participant-blind, placebo-controlled trial consisted of the acupuncture group (n = 38) and placebo-acupuncture group (n = 38). Setting: A tertiary teaching and general hospital. Participants: 76 peri-menopausal women with insomnia disorder based on the International Classification of Sleep Disorders, Third Edition. Interventions: A 10-session of acupuncture at bilateral Shenshu (BL 23) and Ganshu (BL 18) with unilateral Qimen (LR 14) and Jingmen (GB 25) or Streitberger needles at the same acupoints was performed for over 3 weeks. Measurements: Pittsburgh Sleep Quality Index (PSQI) and Insomnia Severity Index (ISI) with over night polysomnography (PSG) exam were completed at baseline and post-treatment. Results: After the treatments, the decrease from baseline in PSQI score was 8.03 points in acupuncture group and 1.29 points in placebo-acupuncture group. The change from baseline in ISI score was 11.35 points in acupuncture group and 2.87 points in placebo-acupuncture group. In PSG data, acupuncture significantly improved the sleep efficiency and total sleep time, associated with less wake after sleep onset and lower percent stage 1 after the treatment. No significant differences from baseline to post-treatment were found in placebo-acupuncture group. Conclusions: Acupuncture can contribute to a clinically relevant improvement in the short-term treatment of PMI, both subjectively and objectively. Clinical Trial Registration: Acupuncture for peri-menopause insomnia: a randomized controlled trial, http://www.chictr.org.cn/showproj.aspx?proj=12118 ChiCTR-IPR-15007199, China. PMID- 29029259 TI - First Experimental Assessment of Protein Intrinsic Disorder Involvement in an RNA Virus Natural Adaptive Process. AB - Intrinsic disorder (ID) in proteins is defined as a lack of stable structure in physiological conditions. Intrinsically disordered regions (IDRs) are highly abundant in some RNA virus proteomes. Low topological constraints exerted on IDRs are expected to buffer the effect of numerous deleterious mutations and could be related to the remarkable adaptive potential of RNA viruses to overcome resistance of their host. To experimentally test this hypothesis in a natural pathosystem, a set of four variants of Potato virus Y (PVY; Potyvirus genus) containing various ID degrees in the Viral genome-linked (VPg) protein, a key determinant of potyvirus adaptation, was designed. To estimate the ID contribution to the VPg-based PVY adaptation, the adaptive ability of the four PVY variants was monitored in the pepper host (Capsicum annuum) carrying a recessive resistance gene. Intriguingly, the two mutants with the highest ID content displayed a significantly higher ability to restore infection in the resistant host, whereas the less intrinsically disordered mutant was unable to restore infection. The role of ID on virus adaptation may be due either to a larger exploration of evolutionary pathways or the minimization of fitness penalty caused by resistance-breaking mutations. This pioneering study strongly suggests the positive impact of ID in an RNA virus adaptive capacity. PMID- 29029261 TI - From the Cover: Selective Enhancement of Domoic Acid Toxicity in Primary Cultures of Cerebellar Granule Cells by Lowering Extracellular Na+ Concentration. AB - Domoic acid (DOM) is an excitatory amino acid analog of kainic acid (KA) that acts through glutamic acid (GLU) receptors, inducing a fast and potent neurotoxic response. Here, we present evidence for an enhancement of excitotoxicity following exposure of cultured cerebellar granule cells to DOM in the presence of lower than physiological Na+ concentrations. The concentration of DOM that reduced by 50% neuronal survival was approximately 3 uM in Na+-free conditions and 16 uM in presence of a physiological concentration of extracellular Na+. The enhanced neurotoxic effect of DOM was fully prevented by AMPA/KA receptor antagonist, while N-methyl-D-aspartate-receptor-mediated neurotoxicity did not seem to be involved, as the absence of extracellular Na+ failed to potentiate GLU excitotoxicity under the same experimental conditions. Lowering of extracellular Na+ concentration to 60 mM eliminated extracellular recording of spontaneous electrophysiological activity from cultured neurons grown on a multi electrode array and prevented DOM stimulation of the electrical activity. Although changes in the extracellular Na+ concentration did not alter the magnitude of the rapid increase in intracellular Ca2+ levels associated to DOM exposure, they did change significantly the contribution of voltage-sensitive calcium channels (VScaCs) and the recovery time to baseline. The prevention of Ca2+ influx via VSCaCs by nifedipine failed to prevent DOM toxicity at any extracellular Na+ concentration, while the reduction of extracellular Ca2+ concentration ameliorated DOM toxicity only in the absence of extracellular Na+, enhancing it in physiological conditions. Our data suggest a crucial role for extracellular Na+ concentration in determining excitotoxicity by DOM. PMID- 29029260 TI - An Adjuvanted, Postfusion F Protein-Based Vaccine Did Not Prevent Respiratory Syncytial Virus Illness in Older Adults. AB - Background: Respiratory syncytial virus (RSV) is an important cause of illness in older adults. This study assessed efficacy of a vaccine for prevention of RSV associated acute respiratory illness (ARI), defined by specified symptoms with virologic confirmation. Methods: This phase 2b study evaluated RSV postfusion F protein (120 ug) with glucopyranosyl lipid adjuvant (5 ug) in 2% stable emulsion. Subjects aged >=60 years were randomly assigned at a ratio of 1:1 to receive vaccine or placebo (all received inactivated influenza vaccine). Ill subjects recorded symptoms and provided blood and nasal swab samples. Results: In the per protocol population (n = 1894), the incidence of RSV-associated ARI occurring >=14 days after dosing was 1.7% and 1.6% in the vaccine and placebo groups, respectively, for a vaccine efficacy (VE) of -7.1% (90% confidence interval [CI], -106.9%-44.3%). Efficacy was not observed in secondary analyses that included seroresponse to nonvaccine RSV antigens (VE, 8.9%; 90% CI, -28.5%-35.4%) or symptoms combined with seroresponse (VE, 10.0%; 90% CI, -45.4%-44.4%). On day 29, 92.9% of vaccinees had an anti-F immunoglobulin G antibody seroresponse. Overall, 48.5% and 30.9% of RSV vaccine recipients reported local and systemic solicited symptoms, respectively. Conclusion: The RSV vaccine was immunogenic but did not protect older adults from RSV illness. Clinical Trials Registration: NCT02508194. PMID- 29029262 TI - Chikungunya fever outbreak identified in North Bali, Indonesia. AB - Background: Chikungunya virus (CHIKV) infections have been reported sporadically within the last 5 years in several areas of Indonesia including Bali. Most of the reports, however, have lacked laboratory confirmation. Method: A recent fever outbreak in a village in the North Bali area was investigated using extensive viral diagnostic testing including both molecular and serological approaches. Results and conclusions: Ten out of 15 acute febrile illness samples were confirmed to have CHIKV infection by real-time PCR or CHIKV-specific IgM enzyme linked immunosorbent assay (ELISA). The outbreak strain belonged to the Asian genotype with highest homology to other CHIKV strains currently circulating in Indonesia. The results are of public health concern particularly because Bali is a popular tourist destination in Indonesia and thereby the potential to spread the virus to non-endemic areas is high. GenBank accession numbers: KY885022, KY885023, KY885024, KY885025, KY885026, KY885027. PMID- 29029264 TI - A General Model for Estimating Macroevolutionary Landscapes. AB - The evolution of quantitative characters over long timescales is often studied using stochastic diffusion models. The current toolbox available to students of macroevolution is however limited to two main models: Brownian motion and the Ornstein-Uhlenbeck process, plus some of their extensions. Here, we present a very general model for inferring the dynamics of quantitative characters evolving under both random diffusion and deterministic forces of any possible shape and strength, which can accommodate interesting evolutionary scenarios like directional trends, disruptive selection, or macroevolutionary landscapes with multiple peaks. This model is based on a general partial differential equation widely used in statistical mechanics: the Fokker-Planck equation, also known in population genetics as the Kolmogorov forward equation. We thus call the model FPK, for Fokker-Planck-Kolmogorov. We first explain how this model can be used to describe macroevolutionary landscapes over which quantitative traits evolve and, more importantly, we detail how it can be fitted to empirical data. Using simulations, we show that the model has good behavior both in terms of discrimination from alternative models and in terms of parameter inference. We provide R code to fit the model to empirical data using either maximum-likelihood or Bayesian estimation, and illustrate the use of this code with two empirical examples of body mass evolution in mammals. FPK should greatly expand the set of macroevolutionary scenarios that can be studied since it opens the way to estimating macroevolutionary landscapes of any conceivable shape. [Adaptation; bounds; diffusion; FPK model; macroevolution; maximum-likelihood estimation; MCMC methods; phylogenetic comparative data; selection.]. PMID- 29029263 TI - Role of STAT3 in skin fibrosis and transforming growth factor beta signalling. AB - Objective: SSc is an autoimmune disease characterized by progressive fibrosis of the skin and internal organs. IL-6 and related cytokines that signal through STAT3 have been implicated in the pathogenesis of SSc and mouse models of fibrosis. The aim of this study was to investigate the efficacy of inhibiting STAT3 in the development of fibrosis in two mouse models of skin fibrosis. Methods: Biopsy samples of skin from SSc patients and healthy control subjects were used to determine the expression pattern of phosphotyrosyl (pY705)-STAT3. C188-9, a small molecule inhibitor of STAT3, was used to treat fibrosis in the bleomycin-induced fibrosis model and Tsk-1 mice. In vitro studies were performed to determine the extent to which STAT3 regulates the fibrotic phenotype of dermal fibroblasts. Results: Increased STAT3 and pY705-STAT3 was observed in SSc skin biopsies and in both mouse models of SSc. STAT3 inhibition with C188-9 resulted in attenuated skin fibrosis, myofibroblast accumulation, pro-fibrotic gene expression and collagen deposition in both mouse models of skin fibrosis. C188-9 decreased in vitro dermal fibroblast production of fibrotic genes induced by IL-6 trans-signalling and TGF-beta. Finally, TGF-beta induced phosphotyrosylation of STAT3 in a SMAD3-dependent manner. Conclusion: STAT3 inhibition decreases dermal fibrosis in two models of SSc. STAT3 regulates dermal fibroblasts function in vitro and can be activated by TGF-beta. These data suggest that STAT3 is a potential therapeutic target for dermal fibrosis in diseases such as SSc. PMID- 29029266 TI - Investigation of Human Immunodeficiency Virus Outbreaks Among People Who Inject Drugs: Timely Diagnosis and Molecular Surveillance are Crucial. PMID- 29029257 TI - Beyond the bulk: disclosing the life of single microbial cells. AB - Microbial single cell analysis has led to discoveries that are beyond what can be resolved with population-based studies. It provides a pristine view of the mechanisms that organize cellular physiology, unbiased by population heterogeneity or uncontrollable environmental impacts. A holistic description of cellular functions at the single cell level requires analytical concepts beyond the miniaturization of existing technologies, defined but uncontrolled by the biological system itself. This review provides an overview of the latest advances in single cell technologies and demonstrates their potential. Opportunities and limitations of single cell microbiology are discussed using selected application related examples. PMID- 29029265 TI - Preclinical testing of a broad-spectrum antimicrobial endotracheal tube coated with an innate immune synthetic mimic. AB - Background: Endotracheal tubes provide an abiotic surface on which bacteria and fungi form biofilms, and the release of endotoxins and planktonic organisms can cause damaging inflammation and infections. Objectives: Ceragenins are small molecule mimics of antimicrobial peptides with broad-spectrum antibacterial and antifungal activity, and a ceragenin may be used to provide antimicrobial protection to the abiotic surface of an endotracheal tube. Methods: A hydrogel film, containing CSA-131, was generated on endotracheal tubes. Elution of CSA-131 was quantified in drip-flow and static systems, antifungal and antibacterial activity was measured with repeated inoculation in growth media, biofilm formation was observed through electron microscopy, safety was determined by intubation of pigs with coated and uncoated endotracheal tubes. Results: Optimized coatings containing CSA-131 provided controlled elution of CSA-131, with concentrations released of less than 1 MUg/mL. The eluting ceragenin prevented fungal and bacterial colonization of coated endotracheal tubes for extended periods, while uncoated tubes were colonized by bacteria and fungi. Coated tubes were well tolerated in intubated pigs. Conclusions: Thin films containing CSA-131 provide protection against microbial colonization of endotracheal tubes. This protection prevents fungal and bacterial biofilm formation on the tubes and reduces endotoxin associated with tubes. This coating is well suited for decreasing the adverse effects of intubation associated with infection and inflammation. PMID- 29029267 TI - Evaluation of universal versus genotype-guided efavirenz dose reduction in pregnant women using population pharmacokinetic modelling. AB - Objectives: Lack of data on the pharmacokinetics of efavirenz in pregnant women at the 400 mg reduced dose currently prevents universal roll-out. Population pharmacokinetic modelling was used to explore pharmacokinetic endpoints at 200, 400 and 600 mg daily doses in pregnant women stratified by CYP2B6 metabolic status. Methods: The analysis was based on 252 plasma efavirenz concentrations from 77 pregnant women (77 sparse, 175 intensive) who received antiretroviral regimens containing 600 mg of efavirenz. The model was developed using NONMEM(r). The effect of genetics was investigated and concentration-time courses at steady state were simulated for individuals (n = 1000 each) classified as CYP2B6 slow, intermediate and fast metabolizers at 200, 400 and 600 mg daily doses. Results: At a 400 mg reduced dose, predicted mean (90% CI) mid-dose efavirenz concentration (C12) was 2.24 MUg/mL (0.89-4.18) in pregnant women classified as slow metabolizers, compared with 0.87 MUg/mL (0.34-1.64) in intermediate metabolizers and 0.78 MUg/mL (0.30-1.47) in fast metabolizers. C12 was below the 0.47 MUg/mL threshold determined within the ENCORE 1 trial in 10% at 400 mg, 4.6% at 600 mg and 3.4% with genotype-guided dosing. The 4.0 MUg/mL toxicity threshold was exceeded in 4.6% at 400 mg, 13.5% at 600 mg and 5.2% with genotype-guided dosing. Conclusions: These data provide context for the ongoing debate about reduction in efavirenz dose to 400 mg during pregnancy and should be interpreted alongside the lower toxicity expected with the lower dose. Additional research is required to investigate genotype-guided dose reduction in pregnant women. PMID- 29029268 TI - Development and Validation of a Method for the Detection of alpha- and beta Endosulfan (Organochlorine Insecticide) in Calliphora vomitoria (Diptera: Calliphoridae). AB - Entomotoxicology studies employ analytical methods and instrumentation to detect chemical substances in carrion insects feeding from the decomposing tissues. The identification of such chemicals may determine the cause of death and may be used for the estimation of the minimum time since death. To date, the main focus of entomotoxicological studies has been the detection of drugs, whereas little information concerns the effects of pesticides on blowflies. Pesticides are generally freely available and more affordable than drugs but they can also be a home hazard and an accessible candidate poison at a crime scene. A QuEChERS extraction method followed by Gas chromatography-mass spectrometry (GC-MS) analysis was developed for the detection of alpha- and beta-endosulfan (organochlorine insecticide and acaricide) in Calliphora vomitoria L. (Diptera: Calliphoridae) and validated. Furthermore, the effects of endosulfan on the morphology, development time and survival of the immature blowflies were investigated. Larvae were reared on liver substrates homogeneously spiked with aliquots of endosulfan corresponding to the concentrations found in body tissues of humans and animals involved in endosulfan poisoning. Results demonstrated that the combination of QuEChERS extraction and GC-MS provide an adequate methods to detect both alpha- and beta-endosulfan in blowfly immatures. Furthermore, the presence of alpha- and beta-endosulfan in the food source 1) prevented C. vomitoria immatures reaching the pupal instar and, therefore, the adult instar at high concentrations, 2) did not affect the developmental time of blowflies at low concentrations 3) affected the size of immatures only at high concentrations, resulting in significantly smaller larvae. PMID- 29029269 TI - An Overlooked Paleotetraploidization in Cucurbitaceae. AB - Cucurbitaceae plants are of considerable biological and economic importance, and genomes of cucumber, watermelon, and melon have been sequenced. However, a comparative genomics exploration of their genome structures and evolution has not been available. Here, we aimed at performing a hierarchical inference of genomic homology resulted from recursive paleopolyploidizations. Unexpectedly, we found that, shortly after a core-eudicot-common hexaploidy, a cucurbit-common tetraploidization (CCT) occurred, overlooked by previous reports. Moreover, we characterized gene loss (and retention) after these respective events, which were significantly unbalanced between inferred subgenomes, and between plants after their split. The inference of a dominant subgenome and a sensitive one suggested an allotetraploid nature of the CCT. Besides, we found divergent evolutionary rates among cucurbits, and after doing rate correction, we dated the CCT to be 90 102 Ma, likely common to all Cucurbitaceae plants, showing its important role in the establishment of the plant family. PMID- 29029270 TI - Does Active Oral Sex Contribute to Female Infertility? AB - Based on recent, historical, and circumstantial evidence, we present a multifactorial hypothesis that has potential direct implications on the epidemiology and management of chlamydial infection and disease in humans. We propose that (1) like its veterinary relatives, the oculogenital pathogen Chlamydia trachomatis evolved as a commensal organism of the human gastrointestinal (GI) tract primarily transmissible via the fecal-oral route; (2) in the modern era, C. trachomatis causes "opportunistic" infection at non-GI sites under conditions driven by improved sanitation/hygiene and reduced fecal oral transmission; and (3) the rise in the practice of oral sex is contributing to the increased prevalence of C. trachomatis in the human GI tract. Infectious organisms produced in the GI tract and reaching the rectum may then chronically contaminate and infect the female urogenital tract, thereby potentially contributing to the most serious sequelae of chlamydial infection in women: pelvic inflammatory disease, ectopic pregnancy, and tubal factor infertility. PMID- 29029272 TI - BSR and BHPR guideline for the prescription and monitoring of non-biologic disease-modifying anti-rheumatic drugs. PMID- 29029273 TI - The Citizen Science Project 'Mueckenatlas' Helps Monitor the Distribution and Spread of Invasive Mosquito Species in Germany. AB - The citizen science project 'Mueckenatlas' (mosquito atlas) was implemented in early 2012 to improve mosquito surveillance in Germany. Citizens are asked to support the spatiotemporal mapping of culicids by submitting mosquito specimens collected in their private surroundings. The Mueckenatlas has developed into an efficient tool for data collection with close to 30,000 mosquitoes submitted by the end of 2015. While the vast majority of submissions included native mosquito species, a small percentage represented invasive species. The discovery of Aedes albopictus (Skuse) (Diptera: Culicidae), Aedes japonicus japonicus (Theobald) (Diptera: Culicidae) and Aedes koreicus (Edwards) (Diptera: Culicidae) specimens via the Mueckenatlas project prompted targeted monitoring activities in the field which produced additional information on the distribution of these species in Germany. Among others, Mueckenatlas submissions led to the detection of three populations of Ae. j. japonicus in West, North and Southeast Germany in 2012, 2013, and 2015, respectively. As demonstrated by on-site monitoring, the origins of Ae. j. japonicus specimens submitted to the Mueckenatlas mirror the distribution areas of the four presently known German populations as found by active field sampling (the fourth population already reported prior to the launch of the Mueckenatlas). The data suggest that a citizen science project such as the Mueckenatlas may aid in detecting changes in the mosquito fauna and can therefore be used to guide the design of more targeted field surveillance activities. PMID- 29029271 TI - Sequence and Structural Diversity of Mouse Y Chromosomes. AB - Over the 180 My since their origin, the sex chromosomes of mammals have evolved a gene repertoire highly specialized for function in the male germline. The mouse Y chromosome is unique among mammalian Y chromosomes characterized to date in that it is large, gene-rich and euchromatic. Yet, little is known about its diversity in natural populations. Here, we take advantage of published whole-genome sequencing data to survey the diversity of sequence and copy number of sex-linked genes in three subspecies of house mice. Copy number of genes on the repetitive long arm of both sex chromosomes is highly variable, but sequence diversity in nonrepetitive regions is decreased relative to expectations based on autosomes. We use simulations and theory to show that this reduction in sex-linked diversity is incompatible with neutral demographic processes alone, but is consistent with recent positive selection on genes active during spermatogenesis. Our results support the hypothesis that the mouse sex chromosomes are engaged in ongoing intragenomic conflict. PMID- 29029274 TI - Mutation-Driven Parallel Evolution during Viral Adaptation. AB - Convergent evolution has been demonstrated across all levels of biological organization, from parallel nucleotide substitutions to convergent evolution of complex phenotypes, but whether instances of convergence are the result of selection repeatedly finding the same optimal solution to a recurring problem or are the product of mutational biases remains unsettled. We generated 20 replicate lineages allowed to fix a single mutation from each of four bacteriophage genotypes under identical selective regimes to test for parallel changes within and across genotypes at the levels of mutational effect distributions and gene, protein, amino acid, and nucleotide changes. All four genotypes shared a distribution of beneficial mutational effects best approximated by a distribution with a finite upper bound. Parallel adaptation was high at the protein, gene, amino acid, and nucleotide levels, both within and among phage genotypes, with the most common first-step mutation in each background fixing on an average in 7 of 20 replicates and half of the substitutions in two of the four genotypes occurring at shared sites. Remarkably, the mutation of largest beneficial effect that fixed for each genotype was never the most common, as would be expected if parallelism were driven by selection. In fact, the mutation of smallest benefit for each genotype fixed in a total of 7 of 80 lineages, equally as often as the mutation of largest benefit, leading us to conclude that adaptation was largely mutation-driven, such that mutational biases led to frequent parallel fixation of mutations of suboptimal effect. PMID- 29029275 TI - Surgical Management of Intrinsic Tumors of the Facial Nerve. AB - BACKGROUND: Intrinsic tumors of the facial nerve are a rare entity. Dealing with this subset of tumors is challenging both in terms of decision making and surgical intervention. OBJECTIVE: To review the outcomes of surgical management of facial nerve tumors and cable nerve graft interpositioning. METHODS: A retrospective analysis was performed at a referral center for skull base pathology. One hundred fifteen patients who were surgically treated for facial nerve tumors were included. In case of nerve interruption during surgery, the cable nerve interpositioning technique was employed wherein the facial nerve palsy lasted for less than 1-yr duration. In cases of facial nerve palsy lasting for greater than 1 yr, the nerve was restituted by a hypoglossal facial coaptation. RESULTS: Various degrees of progressive paralysis were seen in 84 (73%) cases. Sixty nine (60%) of the tumors involved multiple segments of the facial nerve. Sixty-two (53.9%) tumors involved the geniculate ganglion. Seventy four (64.3%) of the cases were schwannomas. Hearing preservation surgeries were performed in 60 (52.1%). Ninety one (79.1%) of the nerves that were sectioned in association with tumor removal were restituted primarily by interposition cable grafting. The mean preoperative House-Brackmann grading of the facial nerve was 3.6. The mean immediate postoperative grading was 5.4, which recovered to a mean of 3.4 at the end of 1 yr. CONCLUSION: In patients with good facial nerve function (House-Brackmann grade I-II), a wait-and-scan approach is recommended. In cases where the facial nerve has been interrupted during surgery, the cable nerve interpositioning technique is a convenient and well-accepted procedure for immediate restitution of the nerve. PMID- 29029276 TI - Complement C3 Associates With Incidence of Diabetes, but No Evidence of a Causal Relationship. AB - Purpose: This study explored whether complement factor 3 (C3) in plasma is associated with incidence of diabetes in a population-based cohort. We also identified genetic variants related to C3 and explored whether C3 and diabetes share common genetic determinants. Methods: C3 was analyzed in plasma from 4368 nondiabetic subjects, 46 to 68 years old, from the Malmo Diet and Cancer Study. Incidence of diabetes was studied in relationship to C3 levels during 17.7+/- 4.4 years of follow-up. Genotypes associated with C3 were identified in a genome-wide association study. Diabetes Genetics Replication and Meta-Analysis and the European Genetic Database were used for in silico look-up. Results: In all, 538 (12.3%) subjects developed diabetes during 18 years of follow-up. High C3 was significantly associated with incidence of diabetes after risk factor adjustments (hazard ratio comparing 4th vs 1st quartile, 1.54 (95% confidence interval, 1.13 to 2.09; P = 0.005). C3 was associated with polymorphisms at the complement factor H locus (P < 10-8). However, no relationship with diabetes was observed for this locus. Another eight loci were associated with C3 with P < 10-5. One of them, the glucose kinase regulatory protein (GCKR) locus, has been previously associated with diabetes. The relationship between C3 levels and the GCKR locus was replicated in the European Genetic Database cohort. Conclusions: Plasma concentration of C3 is a risk marker for incidence of diabetes. The results suggest that this association could, in part, be explained by pleiotropic effects related to the GCKR gene. PMID- 29029277 TI - miR-122 Release in Exosomes Precedes Overt Tolvaptan-Induced Necrosis in a Primary Human Hepatocyte Micropatterned Coculture Model. AB - Idiosyncratic drug-induced liver injury (IDILI) is thought to often result from an adaptive immune attack on the liver. However, it has been proposed that the cascade of events culminating in an adaptive immune response begins with drug induced hepatocyte stress, release of exosomal danger signals, and innate immune activation, all of which may occur in the absence of significant hepatocelluar death. A micropatterned coculture model (HepatoPac) was used to explore the possibility that changes in exosome content precede overt necrosis in response to the IDILI drug tolvaptan. Hepatocytes from 3 human donors were exposed to a range of tolvaptan concentrations bracketing plasma Cmax or DMSO control continuously for 4, 24, or 72 h. Although alanine aminotransferase release was not significantly affected at any concentration, tolvaptan exposures at approximately 30-fold median plasma Cmax resulted in increased release of exosomal microRNA-122 (miR-122) into the medium. Cellular imaging and microarray analysis revealed that the most significant increases in exosomal miR-122 were associated with programmed cell death and small increases in membrane permeability. However, early increases in exosome miR-122 were more associated with mitochondrial induced apoptosis and oxidative stress. Taken together, these data suggest that tolvaptan treatment induces cellular stress and exosome release of miR-122 in primary human hepatocytes in the absence of overt necrosis, providing direct demonstration of this with a drug capable of causing IDILI. In susceptible individuals, these early events may occur at pharmacologic concentrations of tolvaptan and may promote an adaptive immune attack that ultimately results in clinically significant liver injury. PMID- 29029279 TI - Radical, Staged Approach to Extensive Posterior Fossa Pediatric Ependymoma: 3 Dimensional Operative Video. PMID- 29029278 TI - Efficacy and safety of delafloxacin compared with vancomycin plus aztreonam for acute bacterial skin and skin structure infections: a Phase 3, double-blind, randomized study. AB - Background: Delafloxacin is an investigational anionic fluoroquinolone in development for oral or intravenous administration for the treatment of infections caused by Gram-positive (including MRSA), Gram-negative, atypical and anaerobic organisms. Objectives: To establish the non-inferiority of delafloxacin compared with vancomycin plus aztreonam for the treatment of acute bacterial skin and skin structure infections and to compare the safety of the two antimicrobials. Patients and methods: A Phase 3, multicentre, randomized, double blind, active-controlled study with 660 patients compared delafloxacin 300 mg or vancomycin 15 mg/kg plus aztreonam 2 g each administered twice daily intravenously for 5-14 days. Non-inferiority was evaluated by objective response (>=20% erythema reduction) at 48-72 h after initiation of study drug, investigator subjective assessment of outcome and microbiological responses. Clinical Trials Registration: NCT01811732. EudraCT number: 2012-001767-71. Results: In the ITT analysis set, the objective response was 78.2% in the delafloxacin arm and 80.9% in the vancomycin/aztreonam arm (mean treatment difference, -2.6%; 95% CI, -8.78% to 3.57%). Investigator-assessed cure was similar between the two groups at follow-up (52.0% versus 50.5%) and late follow up (70.4% versus 66.6%). Bacterial eradication of MRSA was 100% and 98.5% in the delafloxacin group and the vancomycin/aztreonam group, respectively. Frequency of treatment-emergent adverse events in the delafloxacin and vancomycin/aztreonam groups was similar. Treatment-emergent adverse events leading to study drug discontinuation were higher in the vancomycin/aztreonam group compared with the delafloxacin group (4.3% versus 0.9%). Conclusions: Delafloxacin, an anionic fluoroquinolone, was statistically non-inferior to vancomycin/aztreonam at 48-72 h following the start of therapy and was well tolerated as monotherapy in the treatment of acute bacterial skin and skin structure infections. PMID- 29029280 TI - Pharmacokinetics and safety results from the Phase 3 randomized, open-label, study of intravenous posaconazole in patients at risk of invasive fungal disease. PMID- 29029281 TI - Rabies-what is necessary to achieve 'zero by 30'? PMID- 29029282 TI - Ecoinformatics Can Infer Causal Effects of Crop Variety on Insect Attack by Capitalizing on 'Pseudoexperiments' Created When Different Crop Varieties Are Interspersed: A Case Study in Almonds. AB - Capturing the complementary strengths of observational and experimental research methods usually requires the researcher to gather separate experimental and observational data sets. In some cases, however, commercial agricultural practices produce the spatial and temporal mixing of 'treatments' independently of other possibly covarying factors that is normally achieved only with formal experimentation. The resulting 'pseudoexperiments' can provide strong evidence for causal relationships. Here, we analyze a large observational data set that creates a series of such pseudoexperiments to assess the effect of different commercial varieties of almond, Prunus dulcis (Mill.) on the impact of two key lepidopteran pests, the navel orangeworm Amyelois transitella (Walker) (Lepidoptera: Pyralidae), and the peach twig borer Anarsia lineatella Zeller (Lepidoptera: Gelechiidae). Almonds are universally planted as polycultures of different varieties to obtain efficient cross-pollination. We find substantial differences across almond varieties in the rates of infestation of almond hulls and nutmeats by the two pests. We find no support for the hypothesis that earlier maturing varieties sustain higher attack; for A. transitella, later-maturing varieties instead had more frequent infestation. On many almond varieties, A. lineatella reaches high infestation levels by feeding almost exclusively on the hulls, rather than nutmeats. Given the importance of these pests in directly destroying almond nuts and in promoting aflatoxin-producing Aspergillus sp. fungal infections of almonds, further work exploring the impact of these pests is warranted. Because many crops requiring cross-pollination are planted as mixtures of different varieties, commercial agricultural production data hold great potential for studying within-crop variation in susceptibility to insect attack. PMID- 29029284 TI - The Influence of CO2 on Genioglossus Muscle After-Discharge Following Arousal From Sleep. AB - Objectives: Ventilatory after-discharge (sustained elevation of ventilation following stimulus removal) occurs during sleep but not when hypocapnia is present. Genioglossus after-discharge also occurs during sleep, but CO2 effects have not been assessed. The relevance is that postarousal after-discharge may protect against upper airway collapse. This study aimed to determine whether arousal elicits genioglossus after-discharge that persists into sleep, and whether it is influenced by CO2. Methods: Twenty-four healthy individuals (6 female) slept with a nasal mask and ventilator. Sleep (EEG, EOG, EMG), ventilation (pneumotachograph), end-tidal CO2 (PETCO2), and intramuscular genioglossus EMG were monitored. NREM eucapnia was determined during 5 minutes on continuous positive airway pressure (4 cmH2O). Inspiratory pressure support was increased until PETCO2 was >=2 mm Hg below NREM eucapnia. Supplemental CO2 was added to reproduce normocapnia, without changing ventilator settings. Arousals were induced by auditory tones and genioglossus EMG compared during steady-state hypocapnia and normocapnia. Results: Eleven participants (4 female) provided data. Prearousal PETCO2 was less (p < .05) during hypocapnia (40.74 +/- 2.37) than normocapnia (43.82 +/- 2.89), with differences maintained postarousal. After discharge, defined as an increase in genioglossus activity above prearousal levels, occurred following the return to sleep. For tonic activity, after discharge lasted four breaths irrespective of CO2 condition. For peak activity, after-discharge lasted one breath during hypocapnia and 6 breaths during normocapnia. However, when peak activity following the return to sleep was compared between CO2 conditions no individual breath differences were observed. Conclusions: Postarousal genioglossal after-discharge may protect against upper airway collapse during sleep. Steady-state CO2 levels minimally influence postarousal genioglossus after-discharge. PMID- 29029283 TI - Trajectories of cardiorespiratory fitness in patients with juvenile dermatomyositis. AB - Objectives: Previous research demonstrated decreased cardiorespiratory fitness (CRF) in patients with JDM during active disease and remission. However, longitudinal data regarding trajectories of CRF are currently lacking. The objective of this study was to determine trajectories of CRF in patients with both monocyclic and chronic JDM, and to identify potential predictors of these trajectories. Methods: Thirty-six patients with JDM [median age (interquartile range) at diagnosis: 8.3 (6.3-15.4) years] treated in our paediatric rheumatology outpatient clinic were included. All patients performed multiple cardiopulmonary exercise tests between 2003 and 2016. Relevant CRF parameters were analysed, including peak oxygen uptake, maximal workload, mechanical efficacy and oxygen uptake at ventilatory anaerobic threshold. We analysed trajectories up to 10 years after diagnosis and determined predictors of CRF outcome parameters by multilevel analyses. Results: Trajectories demonstrated significant declines in CRF during the active phase of the disease with subsequent improvement in CRF during the initial years after diagnosis. However, hereafter no further improvements, and even a decrease, in CRF were observed over time in both monocyclic and chronic subtypes of JDM. We found that a longer disease duration, younger age of onset and higher prednisone dose negatively influence CRF. Conclusion: Patients with both monocyclic and chronic JDM show decreases in long term CRF trajectories. Longer disease duration, younger age of onset and higher prednisone dose negatively influence CRF. This study stresses the need for regular evaluation of CRF and implementation of (exercise) interventions to improve CRF in patients with JDM, even in monocyclic patients. PMID- 29029285 TI - Selection of Reference Genes for Expression Studies in Diaphorina citri (Hemiptera: Liviidae). AB - The Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), is considered the main vector of the bacteria associated with huanglongbing, a very serious disease that has threatened the world citrus industry. The absence of efficient control management protocols, including a lack of resistant cultivars, has led to the development of different approaches to study this pathosystem. The production of resistant genotypes relies on D. citri gene expression analyses by RT-qPCR to assess control of the vector population. High-quality, reliable RT qPCR analyses depend upon proper reference gene selection and validation. However, adequate D. citri reference genes have not yet been identified. In the present study, we evaluated the genes EF 1-alpha, ACT, GAPDH, RPL7, RPL17, and TUB as candidate reference genes for this insect. Gene expression stability was evaluated using the mathematical algorithms deltaCt, NormFinder, BestKeeper, and geNorm, at five insect developmental stages, grown on two different plant hosts [Citrus sinensis (L.) Osbeck (Sapindales: Rutaceae) and Murraya paniculata (L.) Jack (Sapindales: Rutaceae)]. The final gene ranking was calculated using RefFinder software, and the V-ATPase-A gene was selected for validation. According to our results, two reference genes are recommended when different plant hosts and developmental stages are considered. Considering gene expression studies in D. citri grown on M. paniculata, regardless of the insect developmental stage, GAPDH and RPL7 have the best fit as reference genes in RT qPCR analyses, whereas GAPDH and EF 1-alpha are recommended as reference genes in insect studies using C. sinensis. PMID- 29029286 TI - Patterns of Abundance and Host Specificity of Bat Ectoparasites in the Central Balkans. AB - Bats are hosts to a number of ectoparasites-acarines (ticks, chiggers, other mites), bat flies, and fleas. Bat ectoparasites might have significant ecological and public health importance as they may be potential vectors of zoonotic agents. It is important to identify their distribution, diversity, and host-parasite associations. Bat ectoparasites in the central Balkans have been largely understudied. The present research was conducted in 45 localities at the territory of Bosnia and Herzegovina, former Yugoslav Republic of Macedonia, Montenegro, and Serbia. In total, 1,143 individuals of 18 species of bats have been examined for the presence and abundance of ectoparasite species during 3 yr of research. In total, 21 ectoparasite species have been identified: three species of ticks, seven species of mites (including one species of chigger), eight species of bat flies, and three species of fleas. In total, 80 host parasite associations have been identified. The largest number of ectoparasites parasitized primarily only one host species. The highest total number of hosts was identified for ectoparasite species Ixodes vespertilionis Koch, Nycteribia schmidlii Schiner, and Spinturnix myoti Kolenati. The spinturnicid mite Spinturnix psi Kolenati was the most abundant ectoparasite species and together with Penicilidia dufouri Westwood the most widely distributed species of bat ectoparasite, being present at 21 localities in the central Balkans. The presented data include the first systematic records of patterns of prevalence, mean intensity, mean abundance, and host specificity for bat ectoparasites in the central Balkans. PMID- 29029288 TI - Microsurgical Clipping of a Blister-like Basilar Tip Aneurysm: 2-Dimensional Operative Video. PMID- 29029287 TI - Survival in Response to Multimodal Therapy in Anaplastic Thyroid Cancer. AB - Context: Historical outcomes in anaplastic thyroid cancer (ATC) have been dismal. Objective: To determine whether an initial intensive multimodal therapy (MMT) is associated with improved ATC survival. Design: MMT was offered to all patients with newly diagnosed ATC treated at the Mayo Clinic from 2003 through 2015; MMT vs care with palliative intent (PI) was individualized considering clinical status and patient preferences. Outcomes were retrospectively analyzed by American Joint Committee on Cancer stage and treatments compared with patient cohort data from 1949 through 1999. Patients: Forty-eight patients (60% male; median age, 62 years); 18 treated with PI, 30 with MMT. Main Outcome Measure: Overall survival (OS) and progression-free survival determined by Kaplan-Meier method. Results: Median OS and 1-year survival for the later cohort were 9 months [95% confidence interval (CI), 4 to 22 months] and 42% (95% CI, 28% to 56%) vs 3 months and 10% for the earlier cohort. Median OS was 21 months compared with 3.9 months in the pooled MMT vs PI groups for the later cohort [hazard ratio (HR), 0.32; P = 0.0006]. Among only patients in the later cohort who had stage IVB disease, median OS was 22.4 vs 4 months (HR, 0.12; 95% CI, 0.03 to 0.44; P = 0.0001), with 68% vs 0% alive at 1 year (MMT vs PI). Among patients with stage IVC cancer, OS did not differ by therapy. Conclusion: MMT appears to convey longer survival in ATC among patients with stage IVA/B disease. PMID- 29029289 TI - Post-Traumatic Hydrocephalus in Children: A Retrospective Study in 42 Pediatric Hospitals Using the Pediatric Health Information System. AB - BACKGROUND: Post-traumatic hydrocephalus (PTH) is a potentially treatable cause of poor recovery from traumatic brain injury (TBI) that remains poorly understood, particularly among children. OBJECTIVE: To better understand the risk factors for pediatric PTH using a large, multi-institutional database. METHODS: We conducted a retrospective cohort study using administrative data from 42 pediatric hospitals participating in the Pediatric Health Information System. All patients <=21 yr surviving a hospitalization with an International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) code for TBI were identified. The primary outcome was PTH, defined by an ICD-9-CM procedure code for surgical management of hydrocephalus within 6 mo. Data were analyzed using multivariable logistic regression. RESULTS: We identified 91 583 patients <=21 yr with TBI, 846 of whom developed PTH. Odds of PTH were significantly higher in children <1 yr compared to older age groups. A total of 48.7% of PTH cases were victims of abuse (adjusted odds ratio [aOR] 2.62, 95% confidence interval [CI] 2.16-3.18). PTH was more common after craniotomy (aOR 1.60, 95% CI 1.30-1.97). Craniectomy without early cranioplasty was associated with markedly increased odds of PTH (aOR 3.67, 95% CI 2.66-5.07), an effect not seen in those undergoing cranioplasty within 30 d (aOR 1.19, 95% CI 0.75-1.89). CONCLUSION: PTH was seen in 0.9% of children who sustained a TBI and was more common in those <1 yr. Severe injury, abuse, and craniectomy with delayed cranioplasty were associated with greatly increased likelihood of PTH. Early cranioplasty in children who require craniectomy may reduce the risk for PTH. PMID- 29029290 TI - NMDA Receptor-mediated Ca2+ Influx in the Absence of Mg2+ Block Disrupts Rest: Activity Rhythms in Drosophila. AB - Study Objectives: The correlated activation of pre- and postsynaptic neurons is essential for the NMDA receptor-mediated Ca2+ influx by removing Mg2+ from block site and NMDA receptors have been implicated in phase resetting of circadian clocks. So we assessed rest:activity rhythms in Mg2+ block defective animals. Methods: Using Drosophila locomotor monitoring system, we checked circadian rest:activity rhythms of different mutants under constant darkness (DD) and light:dark (LD) conditions. We recorded NMDA receptor-mediated currents or Ca2+ increase in neurons using patch-clamp and Ca2+ imaging techniques. Results: We found that Mg2+ block defective mutant flies were completely arrhythmic under DD. To further understand the role of Mg2+ block in daily circadian rest:activity, we observed the mutant files under LD cycles, and we found severely reduced morning anticipation and advanced evening peak compared to control flies. We also used tissue-specific expression of Mg2+ block defective NMDA receptors and demonstrated pigment-dispersing factor receptor (PDFR)-expressing circadian neurons were implicated in mediating the circadian rest:activity deficits. Endogenous functional NMDA receptors are expressed in most Drosophila neurons, including in a subgroup of dorsal neurons (DN1s). Subsequently, we determined that the uncorrelated extra Ca2+ influx may act in part through Ca2+/Calmodulin (CaM)-stimulated PDE1c pathway leading to morning behavior phenotypes. Conclusions: These results demonstrate that Mg2+ block of NMDA receptors at resting potential is essential for the daily circadian rest:activity rhythms and we propose that Mg2+ block functions to suppress CaM-stimulated PDE1c activation at resting potential, thus regulating Ca2+ and cyclic AMP oscillations in circadian and sleep circuits. PMID- 29029292 TI - Minimizing Retraction by Pia-Arachnoidal 10-0 Sutures in Intrasulcal Dissection. AB - BACKGROUND: In contemporary microneurosurgery reducing retraction-induced injury to the brain is essential. Self-retaining retractor systems are commonly used to improve visualization and decrease the repetitive microtrauma, but sometimes self retaining retractor systems can be cumbersome and the force applied can cause focal ischemia or contusions. This may increase the morbidity and mortality. Here, we describe a technique of retraction using 10-0 sutures in the arachnoid. OBJECTIVE: To evaluate the imaging and clinical results in patients where 10-0 suture retraction was used to aid the surgical procedure. METHODS: Adjacent cortex was retracted by placing 10-0 nylon suture in the arachnoid of the bank or banks of the sulcus. The suture was secured to the adjacent dural edge by using aneurysm clips, allowing for easy adjustability of the amount of retraction. We retrospectively analyzed the neurological outcome, signal changes in postoperative imaging, and ease of performing surgery in 31 patients with various intracranial lesions including intracranial aneurysms, intra- and extra-axial tumors, and cerebral ischemia requiring arterial bypass. RESULTS: Clinically, there were no injuries, vascular events, or neurological deficits referable to the relevant cortex. Postoperative imaging did not show changes consistent with ischemia or contusion due to the retraction. This technique improved the visualization and illumination of the surgical field in all cases. CONCLUSION: Retraction of the arachnoid can be used safely in cases where trans-sulcal dissection is required. This technique may improve initial visualization and decrease the need for dynamic or static retraction. PMID- 29029291 TI - Nutrition Influences Caffeine-Mediated Sleep Loss in Drosophila. AB - Study objectives: Plant-derived caffeine is regarded as a defensive compound produced to prevent herbivory. Caffeine is generally repellent to insects and often used to study the neurological basis for aversive responses in the model insect, Drosophila melanogaster. Caffeine is also studied for its stimulatory properties where sleep or drowsiness is suppressed across a range of species. Since limiting access to food also inhibits fly sleep-an effect known as starvation-induced sleep suppression-we tested whether aversion to caffeinated food results in reduced nutrient intake and assessed how this might influence fly studies on the stimulatory effects of caffeine. Methods: We measured sleep and total consumption during the first 24 hours of exposure to caffeinated diets containing a range of sucrose concentrations to determine the relative influence of caffeine and nutrient ingestion on sleep. Experiments were replicated using three fly strains. Results: Caffeine reduced total consumption and nighttime sleep, but only at intermediate sucrose concentrations. Although sleep can be modeled by an exponential dose response to nutrient intake, caffeine-mediated sleep loss cannot be explained by absolute caffeine or sucrose ingestion alone. Instead, reduced sleep strongly correlates with changes in total consumption due to caffeine. Other bitter compounds phenocopy the effect of caffeine on sleep and food intake. Conclusions: Our results suggest that a major effect of dietary caffeine is on fly feeding behavior. Changes in feeding behavior may drive caffeine-mediated sleep loss. Future studies using psychoactive compounds should consider the potential impact of nutrition when investigating effects on sleep. PMID- 29029293 TI - Multiple Chronic Conditions in Spousal Caregivers of Older Adults With Functional Disability: Associations With Caregiving Difficulties and Gains. AB - Objectives: Multiple chronic conditions (MCCs) are common and have harmful consequences in later life. Along with managing their own health, many aging adults care for an impaired partner. Spousal caregiving may be more stressful when caregivers have MCCs, particularly those involving complex management. Yet, little is known about combinations of conditions that are most consequential for caregiving outcomes. Method: Using a U.S. sample of 359 spousal caregivers and care recipients from the 2011 National Aging Trends Study and National Study of Caregiving, we examined three categories of MCCs based on similarity of management strategies (concordant only, discordant only, and both concordant and discordant) and their associations with caregiving difficulties and gains. We also considered gender differences. Results: Relative to caregivers without MCCs, caregivers with discordant MCCs reported fewer gains, whereas caregivers with both concordant and discordant MCCs reported greater emotional and physical difficulties. Wives with discordant MCCs only reported a trend for greater physical difficulties. Caregivers with concordant MCCs did not report more difficulties or gains. Discussion: Spousal caregivers with MCCs involving discordant management strategies appear to be at risk for adverse care-related outcomes and may benefit from support in maintaining their own health as well as their caregiving responsibilities. PMID- 29029294 TI - Cardiovascular events in anti-neutrophil cytoplasmic antibody-associated vasculitis: a meta-analysis of observational studies. AB - Objectives: Several chronic inflammatory diseases are associated with cardiovascular disease, but the risk in ANCA-associated vasculitis is poorly quantified. The aim of the present study was to review the evidence for an increased cardiovascular risk, including ischaemic heart disease, cerebrovascular accidents and peripheral arterial disease, in patients with ANCA-associated vasculitis. Methods: A comprehensive systematic review was conducted in accordance with guidelines of preferred reporting items for systematic reviews and meta-analyses. The databases PubMed, Embase.com and the Cochrane Library (Wiley) were searched for original observational studies comparing vasculitis patients with at least one control group. Summary estimates were derived with a random-effects model and reported as relative risks. Results: One thousand three hundred and seventy-five studies were identified. Seven studies were included, comprising almost 14 000 ANCA-associated vasculitis patients vs general population controls in six studies and chronic kidney disease patients in one study. ANCA-associated vasculitis carried a relative risk of 1.65 (95% CI: 1.23, 2.22) for all cardiovascular events, 1.60 (95% CI: 1.39, 1.84) for ischaemic heart disease and 1.20 (95% CI: 0.98, 1.48) for cerebrovascular accidents. We did not find studies that addressed the risk for peripheral arterial disease separately. No heterogeneity was seen in the estimates. Conclusion: This meta analysis of observational studies supports an increase in cardiovascular risk in patients with ANCA-associated vasculitis of ~65%, similar to that found in other chronic inflammatory diseases. Hence, there is a clear need for active cardiovascular risk management in patients with ANCA-associated vasculitis. PMID- 29029295 TI - Probabilistic Distances Between Trees. AB - Most existing measures of distance between phylogenetic trees are based on the geometry or topology of the trees. Instead, we consider distance measures which are based on the underlying probability distributions on genetic sequence data induced by trees. Monte Carlo schemes are necessary to calculate these distances approximately, and we describe efficient sampling procedures. Key features of the distances are the ability to include substitution model parameters and to handle trees with different taxon sets in a principled way. We demonstrate some of the properties of these new distance measures and compare them to existing distances, in particular by applying multidimensional scaling to data sets previously reported as containing phylogenetic islands. [Metric; probability distribution; multidimensional scaling; information geometry. PMID- 29029296 TI - The British Society for Rheumatology guideline for the management of systemic lupus erythematosus in adults: Executive Summary. PMID- 29029297 TI - Cytomegalovirus-Specific T-Cell Transfer for Refractory Cytomegalovirus Infection After Haploidentical Stem Cell Transplantation: The Quantitative and Qualitative Immune Recovery for Cytomegalovirus. AB - Background: The efficiency and mechanisms of adoptive transfer of cytomegalovirus (CMV)specific T cells for refractory CMV infection after haploidentical stem cell transplantation (haplo-SCT) remain largely unknown. Methods: Thirty-two patients with refractory CMV infection who accepted treatment with adoptive CMV-specific T cell infusion following haplo-SCT were prospectively enrolled. Another 32 patients with nonrefractory CMV infection after haplo-SCT were selected as control subjects. The phenotypical and functional characteristics of CMV-specific T cells were analyzed before and after cellular therapy in the refractory cohort, as well as in the nonrefractory cohort. Results: In the refractory cohort, 27 of the 32 treated patients exhibited CMV clearance within 4 weeks after adoptive T cell transfer without recurrence. The in vivo expansion of CMV-specific T cells and improvements in the cytokine production and proliferation ability of the CMV specific T cells were observed after cellular therapy. Moreover, a reduced expression of programmed death-1 (PD-1) on CMV-specific T cells was observed. However, in the remaining 5 patients who showed CMV recurrence 4 weeks after transfer, neither the quantity nor the function of CMV-specific T cells was restored. Conclusions: The adoptive transfer of CMV-specific T cells promotes quantitative and functional recovery of CMV-specific T cells to guard against refractory CMV infection after haplo-SCT. PMID- 29029298 TI - The Effect of Larval Diet on Adult Survival, Swarming Activity and Copulation Success in Male Aedes aegypti (Diptera: Culicidae). AB - Control of Aedes aegypti (L.) (Diptera: Culicidae) populations is vital for reducing the transmission of several pervasive human diseases. The success of new vector control technologies will be influenced by the fitness of laboratory reared transgenic males. However, there has been relatively little published data on how rearing practices influence male fitness in Aedes mosquitoes. In the laboratory, the effect of larval food availability on adult male fitness was tested, using a range of different fitness measures. Larval food availability was demonstrated to be positively correlated with adult body size. Larger males survived longer and exhibited greater swarming activity. As a consequence, larger males may have more mating opportunities in the wild. However, we also found that within a swarm larger males did not have an increased likelihood of copulating with a female. The outcome of the mating competition experiments depended on the methodology used to mark the males. These results show that fitness assessment can vary depending on the measure analyzed, and the methodology used to determine it. Continued investigation into these fitness measures and methodologies, and critically, their utility for predicting male performance in the field, will increase the efficiency of vector control programs. PMID- 29029299 TI - Weak Regulation of Many Targets Is Cumulatively Powerful-An Evolutionary Perspective on microRNA Functionality. AB - Why do microRNAs (miRNAs) weakly repress so many targets such that most targets do not have phenotypic effects? An increasingly accepted view posits that weak targeting has no biological function and each miRNA effectively has only a few functional targets. Here, we review the evolutionary arguments for this postulate and find these arguments seriously flawed. In contrast, from the systems perspective, the power of broad and weak targeting may reside in the cumulative effects of all repressions, which collectively stabilize gene regulatory networks. This view predicts that miRNAs would show little tendency to downsize their target pools. A survey of "twin-miRs" production indeed validates this prediction. PMID- 29029300 TI - Flight Activity and Field Infestation Relationships for Coffee Berry Borer in Commercial Coffee Plantations in Kona and Kau Districts, Hawaii. AB - The coffee berry borer (CBB), Hypothenemus hampei Ferrari (Coleoptera: Curculionidae: Scolytinae) is a recent invader to Hawaii. To date, limited information regarding the seasonal phenology of this pest on the islands limits the implementation of integrated control strategies. As part of a coffee farmer training program, we monitored CBB flight activity in 15 coffee plantations (Kona and Kau Districts) over 10 mo with methanol-ethanol (3:1 ratio) baited traps. Concurrently, we quantified CBB infestation and penetration rates inside developing coffee berries through the end of harvest. Approximately 1 million CBB were captured, with the highest activity (e.g., >500 CBB/trap/wk) in December through February, coinciding with end of main regional harvesting periods. Relatively high activity (>250 CBB/trap/wk) was also observed during berry development, in May and June (Kona) and June and July (Kau). Field infestation rates were higher overall in Kau (9.6 +/- 1.1%) compared with coffee plantations in Kona (4.7 +/- 0.4%). Linear regression investigated relationships between CBB trap data and berry infestation rates. Trap catch data generally correlated better with the proportion of shallow entries (AB position) compared with deeper penetrations (CD position) or total infestation. Pearson correlation coefficients based on different parameters (i.e., region, altitude, and berry phenology) revealed positive and mostly significant correlations between these variables (R values 0.410 to 0.837). Timing peak flight activity of CBB with insecticide applications will help coffee growers improve pest control. The ability of trap data to calculate reliable economic (action) thresholds for the CBB is discussed. PMID- 29029301 TI - Attractiveness of Host Plants at Different Growth Stage to Kudzu Bug, Megacopta cribraria (Heteroptera: Plataspidae): Behavioral Responses to Whole Plant and Constitutive Volatiles. AB - The kudzu bug, Megacopta cribraria (Fabricius), is an invasive pest of soybeans, Glycine max (L.) Merr., that has recently been detected in the United States. This study investigated whether there was a differential attraction of adult bugs to soybean growth stages, and whether the attraction was related to soybean constitutive volatiles. Greenhouse choice assays examined the behavioral orientation preference of adult bugs exposed to four growth stages of whole soybean plants: vegetative (V2), flowering (R1), pod (R3), and seed (R5). Results show that significantly more adults landed on plants in the early reproductive stage R1 than in other stages. Laboratory olfactometer assays also demonstrate that significantly more adult bugs were attracted to R1 plants, with females responding more strongly than males. Both greenhouse and olfactometer assays indicate that the differential attraction of adult bugs to soybean growth stages was mediated by plant constitutive volatiles. These results offer an insight into kudzu bug chemical and behavioral ecology and thus are of great significance for optimizing the timing of field scouting and treatment as well as the development of soybean pest management programs. PMID- 29029303 TI - Clinical Usage of the Adjuvanted Herpes Zoster Subunit Vaccine (HZ/su): Revaccination of Recipients of Live Attenuated Zoster Vaccine and Coadministration With a Seasonal Influenza Vaccine. PMID- 29029304 TI - Conventional and Advanced Imaging of Spine Oncologic Disease, Nonoperative Post treatment Effects, and Unique Spinal Conditions. AB - In this review, we discuss the imaging features of diseases and conditions ranging from neoplastic to nonoperative post-treatment effects to unique conditions of the spine. Additionally, advanced imaging may increase diagnostic certainty in cases where conventional imaging characteristics of benign lesions and malignant pathology are variable. PMID- 29029302 TI - Acute Kynurenine Challenge Disrupts Sleep-Wake Architecture and Impairs Contextual Memory in Adult Rats. AB - Study Objectives: Tryptophan metabolism via the kynurenine pathway may represent a key molecular link between sleep loss and cognitive dysfunction. Modest increases in the kynurenine pathway metabolite kynurenic acid (KYNA), which acts as an antagonist at N-methyl-d-aspartate and alpha7 nicotinic acetylcholine receptors in the brain, result in cognitive impairments. As glutamatergic and cholinergic neurotransmissions are critically involved in modulation of sleep, our current experiments tested the hypothesis that elevated KYNA adversely impacts sleep quality. Methods: Adult male Wistar rats were treated with vehicle (saline) and kynurenine (25, 50, 100, and 250 mg/kg), the direct bioprecursor of KYNA, intraperitoneally at zeitgeber time (ZT) 0 to rapidly increase brain KYNA. Levels of KYNA in the brainstem, cortex, and hippocampus were determined at ZT 0, ZT 2, and ZT 4, respectively. Analyses of vigilance state-related parameters categorized as wake, rapid eye movement (REM), and non-REM (NREM) as well as spectra power analysis during NREM and REM were assessed during the light phase. Separate animals were tested in the passive avoidance paradigm, testing contextual memory. Results: When KYNA levels were elevated in the brain, total REM duration was reduced and total wake duration was increased. REM and wake architecture, assessed as number of vigilance state bouts and average duration of each bout, and theta power during REM were significantly impacted. Kynurenine challenge impaired performance in the hippocampal-dependent contextual memory task. Conclusions: Our results introduce kynurenine pathway metabolism and formation of KYNA as a novel molecular target contributing to sleep disruptions and cognitive impairments. PMID- 29029306 TI - An Assessment of Phylogenetic Tools for Analyzing the Interplay Between Interspecific Interactions and Phenotypic Evolution. AB - Much ecological and evolutionary theory predicts that interspecific interactions often drive phenotypic diversification and that species phenotypes in turn influence species interactions. Several phylogenetic comparative methods have been developed to assess the importance of such processes in nature; however, the statistical properties of these methods have gone largely untested. Focusing mainly on scenarios of competition between closely-related species, we assess the performance of available comparative approaches for analyzing the interplay between interspecific interactions and species phenotypes. We find that many currently used statistical methods often fail to detect the impact of interspecific interactions on trait evolution, that sister-taxa analyses are particularly unreliable in general, and that recently developed process-based models have more satisfactory statistical properties. Methods for detecting predictors of species interactions are generally more reliable than methods for detecting character displacement. In weighing the strengths and weaknesses of different approaches, we hope to provide a clear guide for empiricists testing hypotheses about the reciprocal effect of interspecific interactions and species phenotypes and to inspire further development of process-based models. PMID- 29029305 TI - Large-Scale Automated Sleep Staging. AB - Study Objectives: Automated sleep staging has been previously limited by a combination of clinical and physiological heterogeneity. Both factors are in principle addressable with large data sets that enable robust calibration. However, the impact of sample size remains uncertain. The objectives are to investigate the extent to which machine learning methods can approximate the performance of human scorers when supplied with sufficient training cases and to investigate how staging performance depends on the number of training patients, contextual information, model complexity, and imbalance between sleep stage proportions. Methods: A total of 102 features were extracted from six electroencephalography (EEG) channels in routine polysomnography. Two thousand nights were partitioned into equal (n = 1000) training and testing sets for validation. We used epoch-by-epoch Cohen's kappa statistics to measure the agreement between classifier output and human scorer according to American Academy of Sleep Medicine scoring criteria. Results: Epoch-by-epoch Cohen's kappa improved with increasing training EEG recordings until saturation occurred (n = ~300). The kappa value was further improved by accounting for contextual (temporal) information, increasing model complexity, and adjusting the model training procedure to account for the imbalance of stage proportions. The final kappa on the testing set was 0.68. Testing on more EEG recordings leads to kappa estimates with lower variance. Conclusion: Training with a large data set enables automated sleep staging that compares favorably with human scorers. Because testing was performed on a large and heterogeneous data set, the performance estimate has low variance and is likely to generalize broadly. PMID- 29029307 TI - Droplet Digital PCR Diagnosis of Human Schistosomiasis: Parasite Cell-Free DNA Detection in Diverse Clinical Samples. AB - Background: Schistosomiasis japonica remains a major public health and socioeconomic concern in Southeast Asia. Sensitive and accurate diagnostics can play a pivotal role in achieving disease elimination goals. Methods: We previously reported a novel droplet digital polymerase chain reaction (ddPCR) assay targeting the mitochondrial gene nad1 to diagnose schistosomiasis japonica. The tool identified both prepatent and patent infections using Schistosoma japonicum DNA isolated from serum, urine, salivary glands, and feces in a murine model. The assay was validated here using clinical samples collected from 412 subjects resident in an area moderately endemic for schistosomiasis in the Philippines. Results: S. japonicum DNA present in human stool, serum, urine, and saliva was detected quantitatively with high sensitivity. The capability to diagnose cases of human schistosomiasis using noninvasively collected clinical samples, the higher level of sensitivity obtained compared with the microscopy based Kato-Katz test, and the capacity to quantify infection intensity have important public health implications for schistosomiasis control and programs targeting other neglected tropical diseases. Conclusions: This verified ddPCR method represents a valuable new tool for the diagnosis and surveillance of schistosomiasis, particularly in low-prevalence and low-intensity areas approaching elimination and in monitoring where disease emergence or re-emergence is a concern. PMID- 29029308 TI - Difficult-to-treat rheumatoid arthritis: an area of unmet clinical need. AB - Increased effectiveness of pharmacological treatments in early RA has led many to believe that difficult-to-treat, established RA is a condition of the past. However, there are still plenty of RA patients who continue to have signs and symptoms suggestive of inflammatory disease activity, despite consecutive treatment with multiple conventional synthetic and biological DMARDs. We argue that difficult-to-treat RA constitutes an area of unmet clinical need and propose a definition of this concept. An overview of what is known about the multiple contributory factors varying for each individual patient, and an approach towards improved patient-tailored management are presented. This management approach involves thorough assessment to determine whether persistence of signs and symptoms is based on inflammatory disease activity, and the role of comorbidities. Furthermore, it addresses medication-related issues, such as non adherence, patient beliefs and expectations, and setting of realistic treatment goals. PMID- 29029309 TI - Limited Efficacy of Caffeine and Recovery Costs During and Following 5 Days of Chronic Sleep Restriction. AB - Objectives: To investigate the effects of caffeine on psychomotor vigilance and sleepiness during sleep restriction and following subsequent recovery sleep. Methods: Participants were N = 48 healthy good sleepers. All participants underwent five nights of sleep satiation (time-in-bed [TIB]: 10 hours), followed by five nights of sleep restriction (TIB: 5 hours), and three nights of recovery sleep (TIB: 8 hours) in a sleep laboratory. Caffeine (200 mg) or placebo was administered in the form of chewing gum at 08:00 am and 12:00 pm each day during the sleep restriction phase. Participants completed hourly 10-minute psychomotor vigilance tests and a modified Maintenance of Wakefulness Test approximately every 4 hours during the sleep restriction and recovery phases. Results: Caffeine maintained objective alertness compared to placebo across the first 3 days of sleep restriction, but this effect was no longer evident by the fourth day. A similar pattern of results was found for Maintenance of Wakefulness Test sleep latencies, such that those in the caffeine group (compared to placebo) did not show maintenance of wakefulness relative to baseline after the second night of restriction. Compared to placebo, participants in the caffeine condition displayed slower return to baseline in alertness and wakefulness across the recovery sleep period. Finally, the caffeine group showed greater N3 sleep duration during recovery. Conclusions: Caffeine appears to have limited efficacy for maintaining alertness and wakefulness across 5 days of sleep restriction. Perhaps more importantly, there may be recovery costs associated with caffeine use following conditions of prolonged sleep loss. PMID- 29029310 TI - Editor's Highlight: Fragrance Allergens Linalool and Limonene Allylic Hydroperoxides in Skin Allergy: Mechanisms of Action Focusing on Transcription Factor Nrf2. AB - Allergic contact dermatitis is regarded as the most frequent expression of immunotoxicity in humans. Many odorant terpenes commonly used in fragrance compositions are considered as weak skin sensitizers, whereas some of their autoxidation products, allylic hydroperoxides, are classified as strong sensitizers according to the local lymph node assay. However, the mechanism of their effects on the immune system remains unclear. Since dendritic cells play a key role in allergic contact dermatitis, we studied their activation by the frequently used linalool (LINA) and limonene (LIMO), and their respective sensitizing allylic hydroperoxides (LINA-OOH, LIMO-OOH). The THP-1 cell-line was used as a surrogate for dendritic cells, the model currently employed in the validated h-CLAT in vitro test. Our data showed that allylic hydroperoxides behave differently. Both LINA-OOH and LIMO-OOH oxidized cell surface thiols 30 min after stimulation. However, the oxidative stress induced by LINA-OOH was stronger, with a higher decreased GSH/GSSG ratio and a stronger reactive species production. Moreover, LINA-OOH induced a stronger Nrf2 accumulation in correlation with nqo1 and ho-1 gene expression, 2 Nrf2 target genes. Regarding signaling pathways involved in these effects, P38 mitogen-activated protein kinase and P-ERK were activated in response to LINA-OOH but not with LIMO-OOH. CD54 and CD86 were induced 24-h postexposure. In contrast, LINA and LIMO did not modify THP-1 phenotype. This work underlies that autoxidation forming allylic hydroperoxide (ROOH) does not lead to equal chemical reactivity since LINA-OOH appears to be a stronger activator than LIMO-OOH, in regard to oxidative stress and Nrf2 pathway activation. PMID- 29029311 TI - Use of colchicine in pregnancy: a systematic review and meta-analysis. AB - Objectives: Colchicine is an anti-inflammatory agent used in the treatment of several rheumatological conditions. The use of colchicine in pregnancy is controversial. The current study aimed to systematically review and meta-analyse the existing data in the literature regarding the safety of colchicine in pregnancy. Methods: A systematic review was carried out using six electronic databases, identifying all relevant studies where colchicine was administered to pregnant women, and where pregnancy-related outcomes were measured. The primary endpoints were miscarriage and major foetal malformation. Secondary endpoints included birthweight and gestational age at birth. Results: Four studies were included for meta-analysis. Use of colchicine throughout pregnancy was not associated with an increased incidence of miscarriage or major foetal malformations. The incidence of miscarriage was significantly lower in women who took colchicine compared with those that did not. In women with FMF who took colchicine throughout the pregnancy, there was no significant difference in birthweight or gestational age compared with those who did not take colchicine. When not limited to FMF, colchicine use was associated with a significantly lower birthweight and gestational age compared with a control group including healthy women who did not take colchicine. Conclusions: Colchicine therapy did not significantly increase the incidence of foetal malformations or miscarriage when taken during pregnancy. Colchicine therapy for FMF should not be withheld on this basis during pregnancy. PMID- 29029312 TI - Prefusion F, Postfusion F, G Antibodies, and Disease Severity in Infants and Young Children With Acute Respiratory Syncytial Virus Infection. AB - Background: Respiratory syncytial virus (RSV) is the most frequent cause of lower respiratory tract infection in infants. Maternally derived RSV-specific antibodies play a role in protection against RSV infection in early life, but data regarding the concentration and specificity of those antibodies are incomplete. Methods: We prospectively enrolled a cohort of previously healthy infants and young children hospitalized (n = 45) or evaluated as outpatients (n = 20) for RSV infection, and healthy noninfected age-matched controls (n = 18). Serum samples were obtained at enrollment to quantify the concentrations and neutralizing activity of serum immunoglobulin G antibodies to the RSV prefusion (pre-F), postfusion (post-F), and G glycoproteins. We also assessed the associations between antibody concentrations and clinical disease severity. Results: Concentrations of pre-F antibodies were >=3-fold higher than post-F antibodies and >30-fold higher than G antibodies in serum from infants with acute RSV infection. Antibody concentrations and neutralizing activity inversely correlated with age. The pre-F antibodies displayed the greatest neutralizing activity (55%-100%), followed by G (0%-45%), and post-F (0%-29%) antibodies. Higher concentrations of pre-F and G antibodies, but not post-F antibodies, were associated with lower clinical disease severity scores. Conclusions: Maternal antibodies directed to pre-F, followed by antibodies directed to G, can modulate RSV disease severity in young infants. PMID- 29029314 TI - Small Aneurysms Account for the Majority and Increasing Percentage of Aneurysmal Subarachnoid Hemorrhage: A 25-Year, Single Institution Study. AB - BACKGROUND: Prospective studies of unruptured aneurysms have shown very low rates of rupture for small aneurysms (<10 mm) and suggested that the risk of treatment outweighs benefit. However, common clinical practice shows that patients with aneurysmal subarachnoid hemorrhage (aSAH) frequently have small aneurysms. OBJECTIVE: To investigate trends in size and location of ruptured aneurysms over a 25-yr period. METHODS: A prospective, Institutional Review Board-approved database of all patients presenting to our institution with aSAH from 1991 to 2016 was analyzed. Cerebral angiography identified the source of hemorrhage. Patients with nonaneurysmal etiologies were excluded. RESULTS: Complete data were available for 1306/1562 patients (84%) with aSAH from 1991 to 2016. The average age was 53 yr and 72% of patients were female. The average size of ruptured aneurysms over 25 yr was 8.0 mm. The average size of ruptured aneurysms decreased steadily with each 5-yr interval from 10.1 mm (1991-1996) to 6.6 mm (2012-2016; P < .001). Overall, very small aneurysms (<5 mm) were responsible for aSAH in 41% of patients. The percentage of very small ruptured aneurysms rose from 29% during the initial 5-yr period (1991-1996) to 50% in the most recent period. Likewise, the percentage of ruptured aneurysms that were 5 to 9 mm rose from 26% to 34% (P < .001). In the past 5 yr, aneurysms <10 mm accounted for 84% of aSAH. Vessel of origin (P = .097) and aneurysm location (P = .322) did not vary with time. CONCLUSION: Ruptured small and very small aneurysms represent a majority and increasing share of aSAH. Identification and prophylactic treatment of these aneurysms remains an important clinical role for cerebrovascular neurosurgery. PMID- 29029313 TI - Subjective-Objective Sleep Discrepancy Is Associated With Alterations in Regional Glucose Metabolism in Patients With Insomnia and Good Sleeper Controls. AB - Objectives: Sleep discrepancies are common in primary insomnia (PI) and include reports of longer sleep onset latency (SOL) than measured by polysomnography (PSG) or "negative SOL discrepancy." We hypothesized that negative SOL discrepancy in PI would be associated with higher relative glucose metabolism during nonrapid eye movement (NREM) sleep in brain networks involved in conscious awareness, including the salience, left executive control, and default mode networks. Methods: PI (n = 32) and good sleeper controls (GS; n = 30) completed [18F]fluorodeoxyglucose positron emission tomography (FDG-PET) scans during NREM sleep, and relative regional cerebral metabolic rate for glucose (rCMRglc) was measured. Sleep discrepancy was calculated by subtracting PSG-measured SOL on the PET night from corresponding self-report values the following morning. We tested for interactions between group (PI vs. GS) and SOL discrepancy for rCMRglc during NREM sleep using both a region of interest mask and exploratory whole-brain analyses. Results: Significant group by SOL discrepancy interactions for rCMRglc were observed in several brain regions (pcorrected < .05 for all clusters). In the PI group, more negative SOL discrepancy (self-reported > PSG-measured SOL) was associated with significantly higher relative rCMRglc in the right anterior insula and middle/posterior cingulate during NREM sleep. In GS, more positive SOL discrepancy (self-reported < PSG-measured SOL) was associated with significantly higher relative rCMRglc in the right anterior insula, left anterior cingulate cortex, and middle/posterior cingulate cortex. Conclusions: Although preliminary, these findings suggest regions of the brain previously shown to be involved in conscious awareness, and the perception of PSG-defined states may also be involved in the phenomena of SOL discrepancy. PMID- 29029316 TI - The Need for, and the Role of the Toxicological Chemist in the Design of Safer Chemicals. AB - During the past several decades, there has been an ever increasing emphasis for designers of new commercial (nonpharmaceutical) chemicals to include considerations of the potential impacts a planned chemical may have on human health and the environment as part of the design of the chemical, and to design chemicals such that they possess the desired use efficacy while minimizing threats to human health and the environment. Achievement of this goal would be facilitated by the availability of individuals specifically and formally trained to design such chemicals. Medicinal chemists are specifically trained to design and develop safe and clinically efficacious pharmaceutical substances. No such formally trained science hybrid exists for the design of safer commercial (nonpharmaceutical) chemicals. This article describes the need for and role of the "toxicological chemist," an individual who is formally trained in synthetic organic chemistry, biochemistry, physiology, toxicology, environmental science, and in the relationships between structure and commercial use efficacy, structure and toxicity, structure and environmental fate and effects, and global hazard, and trained to integrate this knowledge to design safer commercially efficacious chemicals. Using examples, this article illustrates the role of the toxicological chemist in designing commercially efficacious, safer chemical candidates. PMID- 29029315 TI - From the Cover: 7,8-Dihydroxyflavone Rescues Lead-Induced Impairment of Vesicular Release: A Novel Therapeutic Approach for Lead Intoxicated Children. AB - Childhood lead (Pb2+) intoxication is a public health problem of global proportion. Lead exposure during development produces multiple effects on the central nervous system including impaired synapse formation, altered synaptic plasticity, and learning deficits. In primary hippocampal neurons in culture and hippocampal slices, Pb2+ exposure inhibits vesicular release and reduces the number of fast-releasing sites, an effect associated with Pb2+ inhibition of NMDA receptor-mediated trans-synaptic Brain-Derived Neurotrophic Factor (BDNF) signaling. The objective of this study was to determine if activation of TrkB, the cognate receptor for BDNF, would rescue Pb2+-induced impairments of vesicular release. Rats were chronically exposed to Pb2+ prenatally and postnatally until 50 days of age. This chronic Pb2+ exposure paradigm enhanced paired-pulse facilitation of synaptic potentials in Schaffer collateral-CA1 synapses in the hippocampus, a phenomenon indicative of reduced vesicular release probability. Decreased vesicular release probability was confirmed by both mean-variance analysis and direct 2-photon imaging of vesicular release from hippocampal slices of rats exposed to Pb2+in vivo. We also found a Pb2+-induced impairment of calcium influx in Schaffer collateral-CA1 synaptic terminals. Intraperitoneal injections of Pb2+ rats with the TrkB receptor agonist 7,8-dihydroxyflavone (5 mg/kg) for 14-15 days starting at postnatal day 35, reversed all Pb2+-induced impairments of presynaptic transmitter release at Schaffer collateral-CA1 synapses. This study demonstrates for the first time that in vivo pharmacological activation of TrkB receptors by small molecules such as 7,8-dihydroxyflavone can reverse long-term effects of chronic Pb2+ exposure on presynaptic terminals, pointing to TrkB receptor activation as a promising therapeutic intervention in Pb2+-intoxicated children. PMID- 29029317 TI - The Critical Role of Supply Chains in Preventing Human Immunodeficiency Virus Drug Resistance in Low- and Middle-Income Settings. AB - The functioning of the supply chain may be a driving factor behind the development of human immunodeficiency virus (HIV) drug resistance (HIVDR) in many low- and middle-income countries (LMICs). Additionally, the effectiveness of supply chains will likely impact the scale-up of both viral-load monitoring and HIVDR testing. This article describes the complexities of global supply chains relevant for LMICs and presents early data on stock-outs and drug substitutions in several countries supported by the US President's Emergency Plan for AIDS Relief. Supply chain systems will need to be strengthened to minimize interruptions as new antiretroviral therapy regimens are introduced and to facilitate adoption of new laboratory technologies. PMID- 29029318 TI - Eliminating the Controlled Napping Policy at CSX Is a Blow to Public Safety. PMID- 29029319 TI - New Records of Phlebotomine Sand Flies (Diptera: Psychodidae) From the State of Alagoas, Northeast of Brazil. AB - Phlebotomine sand flies are small insects of great medical importance. This study presents new records of phlebotomine sand flies, which augment the list of species, recorded in the state of Alagoas, Brazil. Sand flies were collected using CDC miniature light traps. Collections were made between November 2008 and April 2016, in 47 municipalities within the state of Alagoas. Twenty-seven thousand two-hundred forty-four sand flies were collected, representing 18 species in seven genera. Lutzomyia longipalpis was the predominant species (85.4% of total), and it was recorded in all biomes. Three species (Evandromyia evandroi (Costa Lima and Antunes 1936), Evandromyia tupynambai (Mangabeira 1942), and Pressatia choti (Floch and Abonnenc 1941)) were collected in coastal and Atlantic forest biomes; five species (Lutzomyia villelai (Mangabeira 1942), Micropygomyia oswaldoi (Mangabeira 1942), Nyssomyia umbratilis (Ward and Frahia 1977), Nyssomyia intermedia (Lutz and Neiva 1912), and Nyssomyia whitmani (Antunes and Coutinho 1939)) were collected in Atlantic forest and Caatinga biomes. The species Evandromyia corumbaensis (Galati, Nunes, Oshiro and Rego 1989) and Psathyromyia naftalekatzi (Falcao, Andrade-Filho, Almeida and Brandao-Filho 2000) were found only in the coastal zones. This work provides an updated list of the phlebotomine sand flies of Alagoas, with some notes on their taxonomy, ecology, distribution, and epidemiological relevance. PMID- 29029320 TI - Insecticidal Mechanism of Wintergreen Oil Against the Health Pest Paederus fuscipes (Coleoptera: Staphylinidae). AB - Paederus fuscipes, a health pest, causes dermatitis linearis in humans. Wintergreen oil exhibits optimal insecticidal activity against P. fuscipes. However, the insecticidal mechanism remains unclear not only in P. fuscipes but also in other pests. In this study, we explored the insecticidal mechanism of wintergreen oil in terms of its effect on the activity of acetylcholinesterase (AChE) enzyme and detoxifying enzymes (carboxylesterase, glutathione-S transferase, and mixed function oxidase); such effect was studied by fumigation both in vivo and in vitro in P. fuscipes male and female adults. In the in vivo and in vitro experiments on male and female adults, wintergreen oil did not significantly affect the activities of the three detoxifying enzymes. Hence, the mode of action of wintergreen oil may be unrelated to the three detoxifying enzymes. Wintergreen oil significantly inhibited AChE activity. When wintergreen oil was tested at different times in vivo, the highest inhibition rates were 41.99% (male) and 40.91% (female). When different doses of wintergreen oil were used for in vivo treatment, the highest inhibition rates were 33.78% (male) and 43.33% (female). When wintergreen oil was tested in vitro, the highest inhibition rates were 31.06% (male) and 35.57% (female). In vitro with chlorpyrifos as a positive control, the AChE activity of 3-MUl wintergreen oil treatment was significantly lower than that of 10 mg/liter chlorpyrifos in both P. fuscipes male and female adults. The results demonstrated that AChE is a potential key factor, maybe a target enzyme, in the mechanism of wintergreen oil against P. fuscipes. PMID- 29029321 TI - Rapid Novel Facile Biosynthesized Silver Nanoparticles From Bacterial Release Induce Biogenicity and Concentration Dependent In Vivo Cytotoxicity With Embryonic Zebrafish-A Mechanistic Insight. AB - In this study, rapid one step facile synthesis of silver nanoparticles (AgNPs) was done using culture supernatant of two Gram positive (B. thuringiensis and S. aureus) and Gram negative (E. coli and Salmonella typhimurium [STAgNP]) bacterial strains and were termed as "Bacillus thuringiensis," "Staphylococcus aureus," "Escherichia coli," and "STAgNP," respectively. Synthesized AgNPs were well characterized with the help of different standard techniques like FESEM, DLS, UV Vis spectroscopy, and Fourier transform infrared. Mechanism of AgNPs synthesis was elucidated using in silico approach. In vivo cytotoxicity of synthesized AgNPs was assessed in embryonic Zebrafish model with the help of uptake, oxidative stress, and apoptosis induction experimental assays, and the mechanism was investigated through in silico approach at the molecular level. The result showed successful biosynthesis of 20-40 nm sized AgNPs stable with zeta potential of - 45 to - 35 mV having standard silver nanoparticles SPR peaks due to the interaction of reduced silver particles with amino acid residues of bapA proteins of the bacterial supernatant. In vivo cytotoxicity with embryonic Zebrafish was found to be dependent on biogenicity and concentration of biosynthesized AgNPs as consequence of oxidative stress induction and apoptosis due to the influential regulation of sod1 and tp53 genes clarified by pathway analysis with reference to experimental and computational results. The study suggested that cytotoxicity of biologically synthesized silver nanoparticles from bacteria depends on strain specificity with significant difference in use of Gram positive and Gram negative bacterial strains. PMID- 29029322 TI - A Dynamic Mathematical Model of Bile Acid Clearance in HepaRG Cells. AB - A dynamic model based on ordinary differential equations that describes uptake, basolateral and canalicular export of taurocholic acid (TCA) in human HepaRG cells is presented. The highly reproducible inter-assay experimental data were used to reliably estimate model parameters. Primary human hepatocytes were similarly evaluated to establish a mathematical model, but with notably higher inter-assay differences in TCA clearance and bile canaliculi dynamics. By use of the HepaRG cell line, the simultaneous TCA clearance associated to basolateral uptake, canalicular and sinusoidal efflux, was predicted. The mathematical model accurately reproduced the dose-dependent inhibition of TCA clearance in the presence and absence of the prototypical cholestatic drugs cyclosporine A (CsA) and chlorpromazine. Rapid inhibition of TCA clearance and recovery were found to be major characteristics of CsA. Conversely, the action of chlorpromazine was described by slow onset of inhibition relative to inhibition of TCA clearance by CsA. The established mathematical model, validated by the use of these 2 prototypical cholestatic drugs and the integration of bile canalicular dynamics, provides an important development for the further study of human hepatobiliary function, through simultaneous temporal and vectorial membrane transport of bile acids in drug-induced cholestasis. PMID- 29029323 TI - Editor's Highlight: lncRNAL20992 Regulates Apoptotic Proteins to Promote Lead Induced Neuronal Apoptosis. AB - Lead is a heavy metal pollutant that is widely present in the environment and can seriously harm human health, especially the nervous system. Long noncoding RNAs (lncRNAs) play important roles in many physiological and pathological processes; however, there remains a lack of in-depth studies on the molecular mechanisms associated with lead neurotoxicity. Here, our results showed that lead exposure inhibited cell proliferation and promoted cell apoptosis. We observed that lncRNAL20992 was significantly upregulated in a lead-induced neuronal-injury cell model according to quantitative reverse transcription polymerase chain reaction. Silencing lncRNAL20992 revealed its significant functions involved in promoting cell apoptosis and inhibiting cell proliferation according to cell-counting kit 8, EdU assay, terminal deoxynucleotidyl transferase dUTP nick-end labeling, and western blot. To elucidate the molecular mechanisms of lncRNAL20992, we used RNA pulldown mass spectrometry combined with bioinformatics analysis to discover 4 proteins (AIFM1, HSP7C, GRP78, and LMNA) that interacted with lncRNAL20992. Western blot analysis indicated that lncRNAL20992 involved in lead-induced neuronal injury was mediated by the 4 proteins. Our study constitutes the first investigation of the functions and related mechanisms of lncRNAL20992 and offered valuable insight into understanding the roles of lncRNA in lead-induced neurotoxicity. PMID- 29029325 TI - Guidelines for the Use of Electrophysiological Monitoring for Surgery of the Human Spinal Column and Spinal Cord. PMID- 29029326 TI - Letter: Electric Beats Open New Frontiers for Deep Brain Stimulation. PMID- 29029324 TI - Cadmium Exposure Impairs Cognition and Olfactory Memory in Male C57BL/6 Mice. AB - Cadmium (Cd) is a heavy metal of high interest to the superfund initiative. Recent epidemiology studies have suggested a possible association between Cd exposure and cognitive as well as olfactory impairments in humans. However, studies in animal models are needed to establish a direct causal relationship between Cd exposure and impairments in cognition and olfaction. This study aims to investigate the toxic effect of Cd on cognition and olfactory function in mice. One group of 8-week-old C57BL/6 male mice was exposed to 3 mg/l Cd (in the form of CdCl2) through drinking water for 20 weeks for behavior tests and final blood Cd concentration analysis. The behavior tests were conducted before, during, and after Cd exposure to analyze the effects of Cd on cognition and olfactory function. Upon completion of behavior tests, blood was collected to measure final blood Cd concentration. Two additional groups of mice were similarly exposed to Cd for 5 or 13 weeks for peak blood Cd concentration measurement. The peak blood Cd concentration was 2.125-2.25 MUg/l whereas the final blood Cd concentration was 0.18 MUg/l. At this exposure level, Cd impaired hippocampus-dependent learning and memory in novel object location test, T-maze test, and contextual fear memory test. It also caused deficits in short-term olfactory memory and odor-cued olfactory learning and memory. Results in this study demonstrate a direct relationship between Cd exposure and cognitive as well as olfactory impairments in an animal model. PMID- 29029327 TI - The Exonization and Functionalization of an Alu-J Element in the Protein Coding Region of Glycoprotein Hormone Alpha Gene Represent a Novel Mechanism to the Evolution of Hemochorial Placentation in Primates. AB - Alu elements contribute considerably to gene regulation and genome evolution in primates. The generation of new exons from Alu elements has been found in various human genes, and the regulatory function of the Alu exon has been investigated in many studies. However, the functionalization of Alu elements in protein coding regions remains unknown. Here, we reported that an Alu-J element exonized in the glycoprotein hormone alpha (GPHA) gene and encoded an additional N-terminal peptide (Alu-J encoding peptide) of the mature GPHA peptide, leading to a splicing variant of Alu-GPHA in anthropoid primates ~35 Ma. Interestingly, adaptive evolution of the Alu-J exon occurred in the human and ape lineages during anthropoid evolution. The Alu-J encoding peptide is found to be a new biomarker in human early pregnancy and prolongs the serum half-life of human chorionic gonadotropin (HCG) circulation. Moreover, Alu-J encoding peptide enhances the bioactivity of HCG protein, both in vivo and in vitro. Our study reveals the first example of an Alu element functioning as the encoding peptide to increase the whole protein stability and provides insight into the potential multi-functionalization of the Alu exon in the protein coding regions. Furthermore, with the chorionic gonadotropin linking with hemochorial placentation, the exonization and functionalization of the Alu-J exon in GPHA gene represent a novel mechanism to the evolution of hemochorial placentation in primates. PMID- 29029328 TI - Predicting deaths in a resource-limited neonatal intensive care unit in Nepal. AB - Background: This study aimed to determine whether the Neonatal Acute Physiology (SNAP) scoring system (SNAP II) and with perinatal extension (SNAP II PE) can be used to predict neonatal deaths in a resource-limited neonatal intensive care unit in Nepal. Methods: A prospective observational study was conducted in a neonatal intensive care unit (NICU) of Kanti Children's Hospital in Kathmandu, Nepal. Data required for the SNAP II and SNAP II PE scores were collected. The relationships between the SNAP II and SNAP II PE scores and neonatal mortality were analyzed. Results: There were 135 neonates admitted during the 6 month study period, of whom 126 met the inclusion criteria. Of these 126 neonates, 29 (23.0%) died. Mortality was 83% (5/6) when SNAP II was >40, and 66.7% (6/9) when SNAP II PE was >50. A SNAP II score of >=12 had a sensitivity of 75.9%, and specificity of 73.2% for predicting mortality, and a SNAP II PE score of >=14 had a sensitivity of 82.8% and specificity of 67.0% for it. Conclusions: SNAP II and SNAP II PE scoring of neonates can be used to predict prognosis of neonates in resource-limited NICUs in Nepal. PMID- 29029329 TI - A New Anthropophilic Species of Simulium (Trichodagmia) (Diptera: Simuliidae) From Amazonia: Morphology, Chromosomes, and DNA Sequences. AB - The black fly Simulium (Trichodagmia) hirtipupa Lutz (Diptera: Simuliidae) is widely distributed in southern Brazil, with one report from Amapa state in the northern region of Brazilian Amazonia. Morphological comparison of northern and southern populations revealed differences in all life stages, corroborated by chromosomal and molecular analyses, and indicated that the population previously identified as S. hirtipupa from Amapa state represents an undescribed species. This new species is described based on all life stages above the egg, and its chromosomal and molecular divergence from S. hirtipupa is highlighted. Simulium criniferum n. sp. can be diagnosed by the deeply concave male ventral plate with a prominent median projection bearing a ventral keel; female anal lobe in lateral view with a broadly rounded, distal membranous area about as long as wide; pupa with a boot-shaped cocoon bearing a minutely bubbled surface, cephalic plate and thorax with abundant hair-like tubercles, and gill of 12 translucent filaments with darkly sclerotized, acuminate tips; and larva with the body cuticle bearing spiniform setae, abdomen truncated posteriorly, and gill histoblast in situ with the filament tips directed ventrally. Chromosomally, the new species has five unique fixed inversions and uniquely shares three additional fixed inversions with its nearest relative, S. hirtipupa. Partial COI sequences indicate a genetic distance of ~9% between the new species and S. hirtipupa. Females of the new species are anthropophilic. PMID- 29029331 TI - The clinical utility of human leucocyte antigen B27 in axial spondyloarthritis. AB - The association between HLA-B27 and AS was first established in the early 1970s. Since then, our understanding of this disease has changed, such that we now recognize AS to be the extreme of the clinical phenotype within a disease spectrum known as axial SpA (axSpA). Recent advances in therapeutic options have driven the need for earlier diagnosis and many screening strategies have been proposed to facilitate this. In parallel, our understanding of axSpA genetics, and especially the contribution of HLA-B27, has expanded. In this article we will present and discuss the evidence supporting the use of HLA-B27 in clinical practice. We will briefly summarize the evolution of the concept of axSpA, the prevalence of HLA-B27 and axSpA and the potential role of HLA-B27 in the aetiopathogenesis of axSpA and focus on the utility of HLA-B27 in everyday clinical practice. PMID- 29029330 TI - The association between omega-3 fatty acid biomarkers and inflammatory arthritis in an anti-citrullinated protein antibody positive population. AB - Objectives: Higher circulating omega-3 fatty acids (n-3 FAs) are associated with a lower prevalence of anti-CCP antibodies and RF in subjects without RA. We examined whether, in anti-CCP+ subjects, n-3 FAs also play a role in development of inflammatory arthritis (IA). Methods: At Colorado-based health fairs from 2008 to 2014, participants without a previous diagnosis of RA who were anti-CCP3+ (n = 47) were recruited into a follow-up study; symptom assessments and joint examinations were conducted every 6 months for the determination of IA. We measured n-3 FAs as a percentage of total lipids in red blood cell membranes (n-3 FA%) at each visit. Results: We detected IA in 10 anti-CCP3+ subjects (21%) at the baseline visit. Increased total n-3 FA% in red blood cell membranes [odds ratio (OR) = 0.09, 95% CI: 0.01, 0.76], specifically docosapentaenoic acid (OR = 0.16, 95% CI: 0.03, 0.83) and docosahexaenoic acid (OR = 0.23, 95% CI: 0.06, 0.86), was associated with a lower odds of IA at the baseline visit, adjusting for n-3 FA supplement use, current smoking, RF+, elevated CRP+ and shared epitope. We followed 35 of the anti-CCP3+ subjects who were IA negative at baseline and detected 14 incident IA cases over an average of 2.56 years of follow-up. In a time-varying survival analysis, increasing docosapentaenoic acid significantly decreased risk of incident IA (hazard ratio = 0.52, 95% CI: 0.27, 0.98), adjusting for age at baseline, n-3 FA supplement use, RF+, CRP+ and shared epitope. Conclusion: n-3 FAs may potentially lower the risk of transition from anti-CCP positivity to IA, an observation that warrants further investigation. PMID- 29029332 TI - Identification of a Novel Subset of Myeloid-Derived Suppressor Cells During Chronic Staphylococcal Infection That Resembles Immature Eosinophils. AB - We have previously reported that myeloid-derived suppressor cells (MDSC), which are a heterogeneous population of immunosuppressive immature myeloid cells, expanded during chronic Staphylococcus aureus infection and promoted bacterial persistence by inhibiting effector T cells. Two major MDSC subsets, including monocytic MDSC and granulocytic MDSC, have been described to date. Here, we identified a new subset of MDSC (Eo-MDSC) in S. aureus-infected mice that phenotypically resembles eosinophils. Eo-MDSC exhibit eosinophilic cytoplasmic granules and express CD11b, the eosinophil marker Syglec-F, variable levels of CCR3, and low levels of interleukin-5Ralpha. Furthermore, Eo-MDSC accumulated at the site of infection and exerted a potent immunosuppressive effect on T-cell responses that was mediated by nitric oxide-dependent depletion of l-arginine. Increases in the number of Eo-MDSC by adoptive transfer caused a significant exacerbation of infection in S. aureus-infected mice. This study sheds new light on the heterogeneity and complexity of MDSC during chronic infection. PMID- 29029334 TI - Effect of long-term hydroxychloroquine on vascular events in patients with systemic lupus erythematosus: a database prospective cohort study. AB - Objectives: The incidence of thromboembolism in patients with SLE is higher than that in the general population. HCQ, widely used to treat lupus, may have vascular protective effects. The aim of this study was to determine whether long term HCQ exposure is associated with decreased thromboembolism risk in SLE. Methods: We designed a prospective cohort study within an SLE population based on the National Health Insurance Research Database in Taiwan. We divided participants into HCQ and control groups according to HCQ prescription during the first year. These groups were defined by medication possession ratio (MPR) ?80% and MPR = 0%, respectively. Patients with an MPR between 0 and 80% were excluded. The primary outcome was a composite vascular event, including acute coronary syndrome, ischaemic stroke, pulmonary embolism, deep vein thrombosis and peripheral arterial disease 1 year after inclusion. We excluded patients from the cohort if they had outcomes within the first year. Results: A total of 8397 patients were eligible for analysis. After propensity-score matching, we included 1946 patients in each group. During a mean follow-up of 7.4 years, the number of events was 139 in the HCQ group (7.1%) and 149 in the control group (7.7%). The risk of vascular events in the HCQ group was similar to that in the control group (hazard ratio = 0.91; 95% CI: 0.72, 1.15). Further subgroup analyses confirmed no statistically significant differences between the groups. Conclusion: Long-term HCQ appears to have no vascular protective effect in patients with SLE. PMID- 29029335 TI - Cortical Reorganization in Dual Innervation by Single Peripheral Nerve. AB - BACKGROUND: Functional recovery after peripheral nerve injury and repair is related with cortical reorganization. However, the mechanism of innervating dual targets by 1 donor nerve is largely unknown. OBJECTIVE: To investigate the cortical reorganization when the phrenic nerve simultaneously innervates the diaphragm and biceps. METHODS: Total brachial plexus (C5-T1) injury rats were repaired by phrenic nerve-musculocutaneous nerve transfer with end-to-side (n = 15) or end-to-end (n = 15) neurorrhaphy. Brachial plexus avulsion (n = 5) and sham surgery (n = 5) rats were included for control. Behavioral observation, electromyography, and histologic studies were used for confirming peripheral nerve reinnervation. Cortical representations of the diaphragm and reinnervated biceps were studied by intracortical microstimulation techniques before and at months 0.5, 3, 5, 7, and 10 after surgery. RESULTS: At month 0.5 after complete brachial plexus injury, the motor representation of the injured forelimb disappeared. The diaphragm representation was preserved in the "end-to-side" group but absent in the "end-to-end" group. Rhythmic contraction of biceps appeared in "end-to-end" and "end-to-side" groups, and the biceps representation reappeared in the original biceps and diaphragm areas at months 3 and 5. At month 10, it was completely located in the original biceps area in the "end-to-end" group. Part of the biceps representation remained in the original diaphragm area in the "end-to-side" group. Destroying the contralateral motor cortex did not eliminate respiration-related contraction of biceps. CONCLUSION: The brain tends to resume biceps representation from the original diaphragm area to the original biceps area following phrenic nerve transfer. The original diaphragm area partly preserves reinnervated biceps representation after end-to-side transfer. PMID- 29029333 TI - More than Counting: An Intraindividual Variability Approach to Categorical Repeated Measures. AB - Objectives: Age-related differences in daily experiences are often described using summaries of categorical repeated measures, including typologies of stressors, activities, social partners, and coping strategies. This paper illustrates how an intraindividual variability (IIV) framework can be used to extract additional meaning from categorical IIV data. Method: Using 8-occasion categorical data on daily stressors from the National Study of Daily Experiences (N = 1,499, MAge = 46.74, SDAge= 12.91), we derive and compute six IIV metrics that invoke numeric and nominal measurement of the central tendency, dispersion, and asymmetry of individuals' stressor experiences and examine how these metrics, relative dominance, diversity, log-skew and mode, spread, order, are related to age and interindividual differences in negative affect. Results: Results demonstrate the utility of the numeric and nominal categorical IIV metrics, with theoretically meaningful age gradients in the three numeric IIV stressor metrics and five of six IIV metrics mapping differences in negative affect. Discussion: Findings highlight how the unique constructs measured by these six metrics of categorical IIV may be used to examine dynamic process, study interindividual and age-related differences, and expand the variety of developmental research questions that may be answered using categorical repeated measures data. PMID- 29029336 TI - Editor's Highlight: Differential Effects of Exposure to Single Versus a Mixture of Endocrine-Disrupting Chemicals on Steroidogenesis Pathway in Mouse Testes. AB - Endocrine-disrupting chemicals (EDCs) generate reproductive dysfunctions affecting the biosynthesis of steroid hormones and genes of the steroidogenic pathway. EDCs effects are mainly reported as a result of exposure to single compounds. However, humans are environmentally exposed to a mixture of EDCs. Herein, we assess chronic exposure to single alkylphenols and phthalates versus a mixture in mouse testes histology and steroidogenesis. Pregnant mice were exposed through drinking water to: 0.3 mg/kg-body weight (BW)/d of each phthalate (bis (2 ethylhexyl) phthalate, dibutyl phthalate, benzyl butyl phthalate), 0.05 mg/kg BW/d of each alkylphenol (4-nonylphenol, 4-tert-octylphenol), or their mixture, covering from 0.5 postcoital day to weaning, continuing in the male offspring each exposure until adulthood (60-days old). Body and relative testis weight were increased in mixture-exposed mice along with histological alterations. Intratesticular testosterone (T) changed only in mice exposed to DBP, whereas estradiol (E2) levels were altered in all groups (except benzyl butyl phthalate). mRNA levels of genes encoding hormones of the steroid pathway (Cyp11a1, Hsd3b1, Cyp17a1, and Cyp19a1), cholesterol transporters (Star), and transcriptional factors (Sp1) showed that mice exposed to single or mixed compounds had alterations in at least 2 transcripts. However, none of the different types of exposure induced changes in all transcripts. In addition, changes at the mRNA or protein levels with single compounds were not always the same as those with a mixture. In conclusion, the effects of a chronic exposure to a mixture of EDCs on the expression of genes and proteins of the steroidogenic pathway and hormonal status were different from those exposed to single EDC. PMID- 29029337 TI - Protective Effect of Indoor Residual Spraying of Insecticide on Preterm Birth Among Pregnant Women With HIV Infection in Uganda: A Secondary Data Analysis. AB - Background: Recent evidence demonstrated improved birth outcomes among human immunodeficiency virus (HIV)-uninfected pregnant women protected by indoor residual spraying of insecticide (IRS). Evidence regarding its impact on HIV infected pregnant women is lacking. Methods: Data were pooled from 2 studies conducted before and after an IRS campaign in Tororo, Uganda, among HIV-infected pregnant women who received bed nets, daily trimethoprim-sulfamethoxazole, and combination antiretroviral therapy at enrollment. Exposure was the proportion of pregnancy protected by IRS. Adverse birth outcomes included preterm birth, low birth weight, and fetal or neonatal death. Multivariate Poisson regression with robust standard errors was used to estimate risk ratios. Results: Of 565 women in our analysis, 380 (67%), 88 (16%), and 97 (17%) women were protected by IRS for 0%, >0% to 90%, and >90% of their pregnancy, respectively. Any IRS protection significantly reduced malaria incidence during pregnancy and placental malaria risk. Compared with no IRS protection, >90% IRS protection reduced preterm birth risk (risk ratio, 0.35; 95% confidence interval, .15-.84), with nonsignificant decreases in the risk of low birth weight (0.68; .29-1.57) and fetal or neonatal death (0.24; .04-1.52). Discussion: Our exploratory analyses support the hypothesis that IRS may significantly reduce malaria and preterm birth risk among pregnant women with HIV receiving bed nets, daily trimethoprim-sulfamethoxazole, and combination antiretroviral therapy. PMID- 29029338 TI - To Include or Not to Include: The Impact of Gene Filtering on Species Tree Estimation Methods. AB - With the increasing availability of whole genome data, many species trees are being constructed from hundreds to thousands of loci. Although concatenation analysis using maximum likelihood is a standard approach for estimating species trees, it does not account for gene tree heterogeneity, which can occur due to many biological processes, such as incomplete lineage sorting. Coalescent species tree estimation methods, many of which are statistically consistent in the presence of incomplete lineage sorting, include Bayesian methods that coestimate the gene trees and the species tree, summary methods that compute the species tree by combining estimated gene trees, and site-based methods that infer the species tree from site patterns in the alignments of different loci. Due to concerns that poor quality loci will reduce the accuracy of estimated species trees, many recent phylogenomic studies have removed or filtered genes on the basis of phylogenetic signal and/or missing data prior to inferring species trees; little is known about the performance of species tree estimation methods when gene filtering is performed. We examine how incomplete lineage sorting, phylogenetic signal of individual loci, and missing data affect the absolute and the relative accuracy of species tree estimation methods and show how these properties affect methods' responses to gene filtering strategies. In particular, summary methods (ASTRAL-II, ASTRID, and MP-EST), a site-based coalescent method (SVDquartets within PAUP*), and an unpartitioned concatenation analysis using maximum likelihood (RAxML) were evaluated on a heterogeneous collection of simulated multilocus data sets, and the following trends were observed. Filtering genes based on gene tree estimation error improved the accuracy of the summary methods when levels of incomplete lineage sorting were low to moderate but did not benefit the summary methods under higher levels of incomplete lineage sorting, unless gene tree estimation error was also extremely high (a model condition with few replicates). Neither SVDquartets nor concatenation analysis using RAxML benefited from filtering genes on the basis of gene tree estimation error. Finally, filtering genes based on missing data was either neutral (i.e., did not impact accuracy) or else reduced the accuracy of all five methods. By providing insight into the consequences of gene filtering, we offer recommendations for estimating species tree in the presence of incomplete lineage sorting and reconcile seemingly conflicting observations made in prior studies regarding the impact of gene filtering. PMID- 29029339 TI - Targeted Enrichment of Large Gene Families for Phylogenetic Inference: Phylogeny and Molecular Evolution of Photosynthesis Genes in the Portullugo Clade (Caryophyllales). AB - Hybrid enrichment is an increasingly popular approach for obtaining hundreds of loci for phylogenetic analysis across many taxa quickly and cheaply. The genes targeted for sequencing are typically single-copy loci, which facilitate a more straightforward sequence assembly and homology assignment process. However, this approach limits the inclusion of most genes of functional interest, which often belong to multi-gene families. Here, we demonstrate the feasibility of including large gene families in hybrid enrichment protocols for phylogeny reconstruction and subsequent analyses of molecular evolution, using a new set of bait sequences designed for the "portullugo" (Caryophyllales), a moderately sized lineage of flowering plants (~ 2200 species) that includes the cacti and harbors many evolutionary transitions to C$_{?mathrm{4}}$ and CAM photosynthesis. Including multi-gene families allowed us to simultaneously infer a robust phylogeny and construct a dense sampling of sequences for a major enzyme of C$_{?mathrm{4}}$ and CAM photosynthesis, which revealed the accumulation of adaptive amino acid substitutions associated with C$_{?mathrm{4}}$ and CAM origins in particular paralogs. Our final set of matrices for phylogenetic analyses included 75-218 loci across 74 taxa, with ~ 50% matrix completeness across data sets. Phylogenetic resolution was greatly improved across the tree, at both shallow and deep levels. Concatenation and coalescent-based approaches both resolve the sister lineage of the cacti with strong support: Anacampserotaceae $+$ Portulacaceae, two lineages of mostly diminutive succulent herbs of warm, arid regions. In spite of this congruence, BUCKy concordance analyses demonstrated strong and conflicting signals across gene trees. Our results add to the growing number of examples illustrating the complexity of phylogenetic signals in genomic scale data. PMID- 29029340 TI - Circadian Phase and Phase Angle Disorders in Primary Insomnia. AB - Objectives: We aimed to identify the prevalence of circadian phase and phase angle abnormalities in patients with insomnia. Methods: We conducted a cross sectional, multicenter study at three sleep laboratories in the United States and Australia. Patients with insomnia and healthy control participants completed a sleep log for 7 days. Circadian phase was assessed from salivary dim light melatonin onset (DLMO) time during a 12-hour laboratory visit. Results: Seventy nine patients meeting the Research Diagnostic Criteria for Primary, Psychophysiological, Paradoxical, and/or Idiopathic Childhood Insomnia (46 females, 35.5 +/- 12.3 years [M +/- SD]) and 21 controls (14 females, 34.4 +/- 11.8 years). As compared to controls, patients with insomnia tried to initiate sleep on average at the same clock time (24:17 +/- 1:17 hours vs. 24:13 +/- 1:30 hours, respectively; p = .84) but had a later average DLMO times (20:56 +/- 1:55 hours, 18:17-01:21 vs. 22:02 +/- 2:02 hours, 17:11-04:52, respectively; p = .04). Consequently, patients with insomnia slept at an earlier circadian phase than controls (phase angle, bedtime-DLMO 2:13 hours (+/- 1:43) vs. 3:10 hours (+/- 1:08), respectively; p = .008), of whom 10% tried to sleep at or before DLMO (compared to 0 controls), and 22% tried to sleep before or within 1 hour after DLMO (compared to 6% of controls). Conclusions: A substantial proportion (10% 22%) of patients with insomnia initiate sleep at too early a circadian phase, implicating a circadian etiology for their insomnia. Outpatient circadian phase assessments should be considered to improve differential diagnoses in insomnia and to inform the development of appropriately timed circadian-based treatments. PMID- 29029341 TI - An increased concentration of receptor activator of nuclear factor kappa-B ligand pre-dates the onset of rheumatoid arthritis. AB - Objectives: RANK ligand (RANKL) is involved in destruction and osteoporosis in RA. In this study, the relationships between RANKL and ACPA, anti-carbamylated protein antibodies (anti-CarP), cytokines and chemokines were analysed in individuals before the onset of RA symptoms, and their associations with radiological findings at disease onset were assessed. Methods: This was a case control study performed within the Medical Biobank of Northern Sweden that included 470 pre-symptomatic individuals [334 women and 136 men; mean (s.d.) age 52.3 (9.4) years] using blood samples donated before symptom onset (pre-dating time; 5.0 years) and 96 controls (60 women and 36 men). Plasma was analysed for RANKL (BioVendor, Karasek, Brno, Czech Republic), anti-CCP2 antibodies (Eurodiagnostics, Malmo, Sweden), anti-CarP antibodies (in-house ELISA), ACPA specificities (ISAC-platform, Phadia AB, Uppsala, Sweden) and cytokines/chemokines (Meso Scale Discovery methods, Rockville, MD, USA). Radiographs of hands and feet were graded using the Larsen score. Results: The concentration of RANKL was higher in the pre-symptomatic individuals compared with controls; mean (s.e.m.): 0.50 (0.03) vs 0.22 (0.02) nmol/l (P < 0.001). The concentration increased gradually over time until symptom onset but appeared later than ACPA/RF/anti-CarP antibodies. Positivity for these antibodies yielded higher levels of RANKL compared with seronegativity (P < 0.001). RANKL concentrations were significantly associated with IL-6 and IL-10 concentrations. The combination of positivity for RANKL and anti-CarP antibodies resulted in a higher Larsen score at diagnosis beta = 6.18 (95% CI: 0.93, 11.43; P = 0.022). Conclusion: RANKL concentrations were increased several years before symptom onset for RA, particularly in ACPA/RF/anti-CarP-positive individuals, all detectable earlier than RANKL. Positivity for RANKL and anti-CarP antibodies yielded the highest Larsen score at disease onset. PMID- 29029342 TI - STRIDE: Species Tree Root Inference from Gene Duplication Events. AB - The correct interpretation of any phylogenetic tree is dependent on that tree being correctly rooted. We present STRIDE, a fast, effective, and outgroup-free method for identification of gene duplication events and species tree root inference in large-scale molecular phylogenetic analyses. STRIDE identifies sets of well-supported in-group gene duplication events from a set of unrooted gene trees, and analyses these events to infer a probability distribution over an unrooted species tree for the location of its root. We show that STRIDE correctly identifies the root of the species tree in multiple large-scale molecular phylogenetic data sets spanning a wide range of timescales and taxonomic groups. We demonstrate that the novel probability model implemented in STRIDE can accurately represent the ambiguity in species tree root assignment for data sets where information is limited. Furthermore, application of STRIDE to outgroup-free inference of the origin of the eukaryotic tree resulted in a root probability distribution that provides additional support for leading hypotheses for the origin of the eukaryotes. PMID- 29029345 TI - Evacuating People and Their Pets: Older Floridians' Need for and Proximity to Pet Friendly Shelters. AB - Objectives: Pets influence evacuation decisions, but little is known about pet friendly emergency shelters' availability or older adults' need for them. Our study addresses this issue, focusing on the most densely populated area of Florida (Miami-Dade)-the state with the oldest population and greatest hurricane susceptibility. Method: We use Geographic Information Systems (GIS)-based methodology to identify the shortest paths to pet-friendly shelters, based on distance and congested and uncongested travel times-taking into account the older population's spatial distribution. Logistic regression models using the 2013 American Housing Survey's Disaster Planning Module examine anticipated shelter use as a function of pet ownership and requiring pet evacuation assistance. Results: Thirty-four percent of older adults in the Miami-Dade area have pets-35% of whom report needing pet evacuation assistance. However, GIS accessibility measures show that travel time factors are likely to impede older adults' use of the area's few pet-friendly shelters. Logistic regression results reveal that pet owners are less likely to report anticipating shelter use; however, the opposite holds for pet owners reporting they would need help evacuating their pets-they anticipate using shelters. Discussion: High pet shelter need coupled with low availability exacerbates older adults' heightened vulnerability during Florida's hurricane season. PMID- 29029343 TI - An Evaluation of Different Partitioning Strategies for Bayesian Estimation of Species Divergence Times. AB - The explosive growth of molecular sequence data has made it possible to estimate species divergence times under relaxed-clock models using genome-scale data sets with many gene loci. In order to improve both model realism and to best extract information about relative divergence times in the sequence data, it is important to account for the heterogeneity in the evolutionary process across genes or genomic regions. Partitioning is a commonly used approach to achieve those goals. We group sites that have similar evolutionary characteristics into the same partition and those with different characteristics into different partitions, and then use different models or different values of model parameters for different partitions to account for the among-partition heterogeneity. However, how to partition data in practical phylogenetic analysis, and in particular in relaxed clock dating analysis, is more art than science. Here, we use computer simulation and real data analysis to study the impact of the partition scheme on divergence time estimation. The partition schemes had relatively minor effects on the accuracy of posterior time estimates when the prior assumptions were correct and the clock was not seriously violated, but showed large differences when the clock was seriously violated, when the fossil calibrations were in conflict or incorrect, or when the rate prior was mis-specified. Concatenation produced the widest posterior intervals with the least precision. Use of many partitions increased the precision, as predicted by the infinite-sites theory, but the posterior intervals might fail to include the true ages because of the conflicting fossil calibrations or mis-specified rate priors. We analyzed a data set of 78 plastid genes from 15 plant species with serious clock violation and showed that time estimates differed significantly among partition schemes, irrespective of the rate drift model used. Multiple and precise fossil calibrations reduced the differences among partition schemes and were important to improving the precision of divergence time estimates. While the use of many partitions is an important approach to reducing the uncertainty in posterior time estimates, we do not recommend its general use for the present, given the limitations of current models of rate drift for partitioned data and the challenges of interpreting the fossil evidence to construct accurate and informative calibrations. PMID- 29029346 TI - Botanical Compound p-Anisaldehyde Repels Larval Lone Star Tick (Acari: Ixodidae), and Halts Reproduction by Gravid Adults. AB - The lone star tick, Amblyomma americanum (L.), widely distributed across eastern, southeastern, and midwestern regions of the United States and south into Mexico, is an obligate blood feeder that attaches to three hosts during the larval, nymphal, and adult stages. White-tailed deer and wild turkey are common hosts, as well as a wide variety of other avian and mammalian hosts. Amblyomma americanum is the most frequently reported species of tick to bite humans in the southeastern and southcentral United States, and it can transmit diseases that include erhlichiosis, rickettsiosis, tularemia, and protozoan infections. As A. americanum resistance to conventional insecticides becomes more common, alternative control tactics, such as application of bioactive botanical natural products are being investigated. p-Anisaldehyde has been found in many plant species and it has shown effects that include mortality, attractancy, and interference with host seeking. The series of bioassays we developed was effective for assessing a range of ixodid tick responses to chemicals. This first assessment of p-anisaldehyde on ticks focused mostly on larvae, usually the most vulnerable free-living stage, and on egg production by adults. Contact exposure to larvae resulted in an LD50 of 0.162% and an LD90 of 0.311% p-anisaldehyde. Although fumigation was not lethal to larval A. americanum, p-anisaldehyde was strongly repellent against them in several bioassays that indicate aspects of the repellency such as counteracting the negative geotaxic orientation on a vertical surface, the ability to trap larvae between and inside treatment barriers on different substrates and to divert upward larval movement from one surface to another, and the extent to which larvae fall from a treated surface. The compound at a relatively low concentration applied to gravid adults strongly reduces egg laying and the few eggs that are produced do not hatch. Aside from repelling larval A. americanum and halting reproduction, p-anisaldehyde has a variety of effects on other arthropods including attraction. Research on this compound as a potentially multifaceted pest management tool has been sparse. This study, for example, is the first to demonstrate p-anisaldehyde's repellent properties against an arthropod pest. p-Anisaldehyde might also act as a strong repellent against other tick species. PMID- 29029344 TI - The Clinical and Economic Impact of Attaining National HIV/AIDS Strategy Treatment Targets in the United States. AB - Background: The US National HIV/AIDS Strategy (NHAS) aims for 72% (90% diagnosed times 80% of those virally suppressed) viral suppression among persons with human immunodeficiency virus (HIV) by 2020. We examined the clinical and economic impact of reaching this target, in the general US population and among black men who have sex with men (MSM), the group with the highest HIV prevalence. Methods: Using a mathematical simulation, we project the 5- and 20-year clinical outcomes, costs, and incremental cost-effectiveness ratios for (1) Current Pace of detection, linkage, retention, and virologic suppression and (2) NHAS investments in expanded testing ($24-$74 per test) and adherence ($400 per person-year), calibrated to achieve 72% suppression by 2020. We examined alternative rates of testing, retention, and suppression and the efficacy and cost of adherence interventions. Results: Compared with Current Pace over 20 years, NHAS averted 280000 HIV transmissions (80000 in black MSM) and 199000 (45000) deaths and saved 2138000 (453000) years of life, while increasing costs by 23%. The incremental cost-effectiveness ratio for NHAS compared with Current Pace was $68900 per quality-adjusted life-year ($38300 for black MSM) and was most sensitive to antiretroviral therapy costs. Conclusions: Reaching NHAS targets would yield substantial clinical benefits and be cost-effective in both the general US and black MSM populations. PMID- 29029347 TI - Childhood Health and Educational Outcomes Associated With Maternal Sleep Apnea: A Population Record-Linkage Study. AB - Objectives: Sleep apnea in pregnancy is known to adversely affect birth outcomes. Whether in utero exposure to maternal sleep apnea is associated with long-term childhood consequences is unclear. Methods: Population-based longitudinal study of singleton infants born during 2002-2012 was conducted using linked birth, hospital, death, developmental, and educational records from New South Wales, Australia. Maternal sleep apnea during pregnancy was identified from hospital records. Outcomes were mortality and hospitalizations up to age 6, developmental vulnerability in the first year of school (aged 5-6 years), and performance on standardized tests in the third year of school (aged 7-9 years). Cox proportional hazards and modified Poisson regression models were used to calculate hazard and risk ratios for outcomes in children exposed to maternal apnea compared with those not exposed. Results: Two hundred nine of 626188 singleton infants were exposed to maternal sleep apnea. Maternal apnea was not significantly associated with mortality (Fisher's exact p = .48), developmental vulnerability (adjusted RR 1.29; 95% CI 0.75-2.21), special needs status (1.58; 0.61-4.07), or low numeracy test scores (1.03; 0.63-1.67) but was associated with low reading test scores (1.55; 1.08-2.23). Maternal apnea significantly increased hospitalizations in the first year of life (adjusted HR 1.81; 95% CI 1.40-2.34) and between the first and sixth birthdays (1.41; 1.14-1.75). This is partly due to admissions for suspected pediatric sleep apnea. Conclusions: Maternal sleep apnea during pregnancy is associated with poorer childhood health. Its impact on developmental and cognitive outcomes warrants further investigation. PMID- 29029348 TI - Dysregulation of Sleep Behavioral States in Narcolepsy. AB - Study Objectives: Patients with narcolepsy experience poor maintenance of wakefulness and fragmented night sleep, but the underlying mechanism of sleep boundary dysregulation remains little understood. The goal of this study was to quantify abnormal sleep-wake regulation in narcolepsy patients. Methods: Using a model-based approach (state space analysis), we analyzed overnight electroencephalography recordings in 10 patients with narcolepsy type 1 and age- and gender-matched healthy control subjects. We analyzed consolidated sleep states using cluster analysis in state space and transitional sleep periods as trajectories between stable clusters. Results: Patients with narcolepsy showed a dislocation of rapid eye movement (REM) sleep in state space and overlap of REM and WAKE behavioral states. Narcolepsy patients had more trajectories between the REM and the WAKE clusters and also between the non-rapid eye movement (NREM) and WAKE clusters. Point density analysis showed more transitional periods between WAKE and REM in narcolepsy, less consolidated NREM sleep, and higher velocities between WAKE and NREM in patients. Conventional sleep analysis revealed increased NREM1 and decreased NREM2 sleep and reduced REM latency in narcolepsy patients. Conclusions: This study provides further evidence for narcolepsy as a disorder of state boundaries including but not limited to REM sleep and wakefulness. In particular, the increase in transitional periods between REM and WAKE but also between NREM and WAKE indicates abnormal state dynamics in narcolepsy. This pattern may be a consequence of disrupted sleep/wake stabilizing mechanisms due to loss of hypocretin/orexin neurons in the hypothalamus. PMID- 29029349 TI - Letter: Surgical Decision Making From Image-Based Biophysical Modeling of Glioblastoma: Not Ready for Primetime. PMID- 29029350 TI - The British Society for Rheumatology guideline for the management of systemic lupus erythematosus in adults. PMID- 29029352 TI - Patient Satisfaction Outcomes after Robotic Arm-Assisted Total Knee Arthroplasty: A Short-Term Evaluation. PMID- 29029351 TI - From the Cover: Development and Application of a Dual Rat and Human AHR Activation Assay. AB - Significant prolonged aryl hydrocarbon receptor (AHR) activation, classically exhibited following exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin, can cause a variety of undesirable toxicological effects. Novel pharmaceutical chemistries also have the potential to cause activation of AHR and consequent toxicities in pre-clinical species and man. Previous methods either employed relatively expensive and low-throughput primary hepatocyte dosing with PCR endpoint, or low resolution overexpressing reporter gene assays. We have developed, validated and applied an in vitro microtitre plate imaging-based medium throughput screening assay for the assessment of endogenous species-specific AHR activation potential via detection of induction of the surrogate transcriptional target Cytochrome P450 CYP1A1. Routine testing of pharmaceutical drug development candidate chemistries using this assay can influence the chemical design process and highlight AHR liabilities. This assay should be introduced such that human AHR activation liability is flagged early for confirmatory testing. PMID- 29029353 TI - Centralization of Pediatric Surgery: European Perspective. PMID- 29029354 TI - Cost Analysis of Sending Routine Pathology Specimens following Total Joint Arthroplasty in the Age of Bundled Payments. AB - Bundled payment plans are being developed as a means to curb healthcare spending. Routine histology following total hip arthroplasties (THA) and total knee arthroplasties (TKA) is standard practice at many institutions. Recently, the value of this practice has been questioned as histologic diagnoses in THA and TKA rarely differ from the clinical diagnoses. The goal of this study is to identify discrepant and discordant diagnoses following THA and TKA at an academic medical center and to calculate the cost-saving potential in the setting of a bundled payment plan. A retrospective chart review was conducted on 1,213 primary THA and TKA performed by two orthopaedic surgeons from 2012 to 2014. The clinical and histologic diagnoses were compared and classified as concordant, discrepant, or discordant. Cost information was obtained from the institutional billing office. One thousand one hundred and sixty-six THA and TKA were analyzed in the final cohort. Nineteen (1.6%) diagnoses were classified as discrepant while none were discordant. The cost of histologic examination per specimen was estimated to be $48.56. The total cost of all arthroplasties was $14,999,512.46, of which histologic examination made up 0.31% of the total cost. The results of this study corroborate the results of previous studies and support the proposition that routine histologic examination is not cost-effective. The cost incurred to perform histologic examination will become a cost deduction from future bundled payments. The practice of sending routine histologic specimens following TJA should be decided upon by the operating orthopaedic surgeon. PMID- 29029355 TI - Over-Sewing of Staple Line in Laparoscopic Sleeve Gastrectomy: Initial Experience of a Comparative Study. AB - INTRODUCTION: The main drawback of laparoscopic sleeve gastrectomy (LSG) is the severity of postoperative complications. Staple line reinforcement (SLR) is strongly advocated. Recently, over-sewing has been proposed as a cost-effective and helpful method for reinforcing the staple line. The purpose of this study was to report our initial experience with LSG comparing over-sewing over the entire staple line with the upper-third staple line. MATERIALS AND METHODS: All obese patients seen at Negrar Sacro Cuore, Don Calabria Hospital were entered into our prospective database and were retrospectively evaluated. Complications (divided as major complications: leaks and bleeding; and minor complications: dysphagia, esophagitis, and reflux disease) and reoperations were recorded for all patients. Complications were graded according to the Clavien classification system. RESULTS: From February 2015 to March 2016, 30 patients underwent LSG. Patients were divided in two groups according to over-sewing: Group A-over-sewing over the entire staple line; and Group B upper-third over-sewing. Mean total operative time was longer in Group A-90 minutes-compared with 85 minutes in Group B. In regard to minor complications, we reported one esophagitis and two cases of dysphagia in Group B and one dysphagia in Group A. Gastroesophageal reflux was higher in Group B than in Group A (3 vs. 1, p=0.149). Three major complications were observed (10%): two bleeding and one hematoma in Group B and no major complications occurred in Group A. All major complications were conservatively treated. No leaks were reported in both groups. No mortality was observed. CONCLUSIONS: Over-sewing of the staple line was associated with fewer leaks but no conclusions can be drawn regarding the effects of over-sewing on staple line bleedings. Before standardizing surgical techniques further, trials are necessary to improve our knowledge about over-sewing in LSG. PMID- 29029356 TI - Total Hip Arthroplasty Dislocation after Cardioversion: A Case Report. AB - New onset postoperative atrial fibrillation (AF) is the most common perioperative arrhythmia in the elderly. The incidence after total joint arthroplasty is much lower than other non-cardiac surgeries. Since postoperative atrial fibrillation can cause increased length of hospital stay, mortality, and healthcare costs, it is critical to focus on prevention and prompt management. New onset atrial fibrillation is treated with rhythm control for patients who demonstrate hemodynamic instability or refractory to rate control measures. Electrical cardioversion is an effective option for unstable patients with known complications. However, there is limited data on orthopedic problems after cardioversion. A unique case is reported presenting postoperative total hip arthroplasty (THA) dislocation after electrical cardioversion for new onset atrial fibrillation in the postanesthesia care unit (PACU). PMID- 29029357 TI - A Pilot Retrospective Study to Evaluate Two Multi-Layer Foam Dressings for the Management of Moderately Exudative Pressure Injuries. AB - Prevention and treatment of pressure injuries (PI) is a standard benchmark for quality of care, performance, risk reduction, and patient safety. Foam dressings are designed to wick away a large volume of exudate with minimal lateral movement to prevent periwound skin maceration; this renders foam dressings a popular choice for the treatment of chronic wounds with high to moderate amounts of exudate. In addition, multi-layer foam dressings may have added benefits to alleviate pressure and minimize shear as the dressing materials slide against each other. The purpose of this retrospective pilot study was to evaluate the effectiveness and safety of two different multi-layer foam dressings (Optifoam(r) Gentle, Medline Industries, Inc. Northfield, Illinois; Mepilex(r) Border, Molnlycke Health Care, Gothenburg, Sweden) for the management of pressure injuries that produce a moderate amount of exudate. A total of 15 patients and 25 wound treatments were reviewed over a period of 12 months in the study. The difference in the mean surface areas at baseline between the two dressings was not statistically significant (p=.38). All wounds improved over time. There was no difference in healing rate (cm2/day) for wounds that were treated with the Mepilex(r) Border dressing (M=.12 cm2/day, SD=.19) compared to the Optifoam(r) Gentle dressing (M=.18 cm2/day; SD=.25); t (23)= .85, p=.40. Findings of this study suggest similar clinical performance between the two foam dressings. Foam dressings were used for the management of several shallow stage 3 and 4 PIs in place of packing. Results of this study challenge the commonly accepted notion that wounds with depth should always be packed with dressing material. PMID- 29029358 TI - Topographical Variations between Splenic Flexure and Spleen: A Study with CT Image-Based Reconstruction. AB - INTRODUCTION: An issue that is seldom seen in the literature relates the detailed relationship of the splenic flexure (SF) and the spleen-both carefully examined with a prospective approach in patients undergoing computer tomography (CT) scan. MATERIALS AND METHODS: SF localization has been searched and examined in 120 consecutive CT scans. Several different variables (age, gender, BMI, indication of CT scan, etc.) have been considered. In cooperation with the Radiology Division, we brought to completion a dedicated topographic outline, with the purpose of providing a detailed classification for SF localization. RESULTS: The SF lies, in 52% of cases, in what we called the inferior (I) position, below the spleen. Other categories of our classification were anterior (A) and posterior (P) positions, which were found respectively in 42% and 8% of analyzed cases. Considering all the variables given, we did not find any significant statistical correlation (p > 0.05). CONCLUSIONS: This study was carried out to classify types of SF in terms of its positional relationship with the spleen. We investigated 120 CT scans and classified the SF into three types, according to its localization: inferior (I), anterior (A), and posterior (P) types. A better understanding of the anatomic variability in SF may be useful for minimizing complications and performing an accurate surgical dissection. PMID- 29029359 TI - A probabilistic network for the diagnosis of acute cardiopulmonary diseases. AB - In this paper, the development of a probabilistic network for the diagnosis of acute cardiopulmonary diseases is presented in detail. A panel of expert physicians collaborated to specify the qualitative part, which is a directed acyclic graph defining a factorization of the joint probability distribution of domain variables into univariate conditional distributions. The quantitative part, which is a set of parametric models defining these univariate conditional distributions, was estimated following the Bayesian paradigm. In particular, we exploited an original reparameterization of Beta and categorical logistic regression models to elicit the joint prior distribution of parameters from medical experts, and updated it by conditioning on a dataset of hospital records via Markov chain Monte Carlo simulation. Refinement was iteratively performed until the probabilistic network provided satisfactory concordance index values for several acute diseases and reasonable diagnosis for six fictitious patient cases. The probabilistic network can be employed to perform medical diagnosis on a total of 63 diseases (38 acute and 25 chronic) on the basis of up to 167 patient findings. PMID- 29029360 TI - Laser desorption ionization mass spectrometry: Recent progress in matrix-free and label-assisted techniques. AB - The MALDI-based mass spectrometry, over the last three decades, has become an important analytical tool. It is a gentle ionization technique, usually applicable to detect and characterize analytes with high molecular weights like proteins and other macromolecules. The earlier difficulty of detection of analytes with low molecular weights like small organic molecules and metal ion complexes with this technique arose due to the cluster of peaks in the low molecular weight region generated from the matrix. To detect such molecules and metal ion complexes, a four-prong strategy has been developed. These include use of alternate matrix materials, employment of new surface materials that require no matrix, use of metabolites that directly absorb the laser light, and the laser absorbing label-assisted LDI-MS (popularly known as LALDI-MS). This review will highlight the developments with all these strategies with a special emphasis on LALDI-MS. PMID- 29029361 TI - The mechanism of attenuation of epithelial-mesenchymal transition by a phosphodiesterase 5 inhibitor via renal klotho expression. AB - Phosphodiesterase-5 (PDE-5) inhibitors induces vasodilation in several organs by blocking cyclic GMP (guanosine monophosphate) degradation. However, the existence of alternative mechanism of action in case of an impaired nitric oxide (NO) system remains controversial. Previous studies suggested that decreased NO bioavailability may result in the downregulation of klotho expression, but the relationship between klotho and NO remains obscure. Therefore, we investigated whether a PDE-5 inhibitor could preserve epithelial-mesenchymal transition (EMT) and relationship exists between the NO and renal klotho expression. Ten-week-old SD rats (N = 24, 200 g, male) were divided (N = 6) into four groups, which received: A LSD, L-NAME 1 mg/mL in drinking water, Udenafil 5 mg/kg subcutaneously and both for 4 weeks. Urine nitrate/nitrite, NGAL (Neutrophil gelatinase-associated lipocalin), and cGMP were measured using ELISA. Kidney was subjected to evaluate PCNA (proliferative cell nuclear antigen), alpha-SMA (smooth muscle cell antigen), E-cadherin, and klotho expression. Urine cGMP decreased after treatment of PDE-5 inhibitor compared with control due to blocking degradation of cGMP (P < .05, control vs Udenafil and L-NAME with Udenafil groups). Urine NGAL increased after treating of L-NAME and attenuated after using PDE-5 inhibitor (P < .05, control vs L-NAME and L-NAME with Udenafil). PCNA, alpha-SMA, and E-cadherin (EMT markers) increased after L-NAME treatment and normalized after using PDE-5 inhibitor. Klotho expression showed trend to increase in the L-NAME with PDE-5 inhibitor group compared with the L NAME group, however, eNOS expression did not change after treatment of L-NAME or PDE-5 inhibitor compared with control. PDE-5 inhibitor alleviates EMT in the kidney via klotho modulation independent of the NO system. PMID- 29029362 TI - Altered TDP-43-dependent splicing in HSPB8-related distal hereditary motor neuropathy and myofibrillar myopathy. AB - BACKGROUND AND PURPOSE: Mutations in the small heat-shock protein 22 gene (HSPB8) have been associated with Charcot-Marie-Tooth disease type 2L, distal hereditary motor neuropathy (dHMN) type IIa and, more recently, distal myopathy/myofibrillar myopathy (MFM) with protein aggregates and TDP-43 inclusions. The aim was to report a novel family with HSPB8K141E -related dHMN/MFM and to investigate, in a patient muscle biopsy, whether the presence of protein aggregates was paralleled by altered TDP-43 function. METHODS: We reviewed clinical and genetic data. We assessed TDP-43 expression by qPCR and alternative splicing of four previously validated direct TDP-43 target exons in four genes by reverse transcriptase polymerase chain reaction. RESULTS: The triplets and their mother presented in the second to third decade of life with progressive weakness affecting distal and proximal lower limb and truncal muscles. Nerve conduction study showed a motor axonal neuropathy. The clinical features, moderately raised creatin kinase levels, selective pattern of muscle involvement on magnetic resonance imaging and pathological changes on muscle biopsy, including the presence of protein aggregates, supported the diagnosis of a contemporary primary muscle involvement. In affected muscle tissue we observed a consistent alteration of TDP-43-dependent splicing in three out of four TDP-43-target transcripts (POLDIP3, FNIP1 and BRD8), as well as a significant decrease of TDP-43 mRNA levels. CONCLUSIONS: Our study confirmed the role of mutated HSPB8 as a cause of a combined neuromuscular disorder encompassing dHMN and MFM with protein aggregates. We identified impaired RNA metabolism, secondary to TDP-43 loss of function, as a possible pathological mechanism of HSPB8K141E toxicity, leading to muscle and nerve degeneration. PMID- 29029363 TI - Synergistic induction of astrocytic differentiation by factors secreted from meninges in the mouse developing brain. AB - Astrocytes, which support diverse neuronal functions, are generated from multipotent neural stem/precursor cells (NS/PCs) during brain development. Although many astrocyte-inducing factors have been identified and studied in vitro, the regions and/or cells that produce these factors in the developing brain remain elusive. Here, we show that meninges-produced factors induce astrocytic differentiation of NS/PCs. Consistent with the timing when astrocytic differentiation of NS/PCs increases, expression of astrocyte-inducing factors is upregulated. Meningeal secretion-mimicking combinatorial treatment of NS/PCs with bone morphogenetic protein 4, retinoic acid and leukemia inhibitory factor synergistically activate the promoter of a typical astrocytic marker, glial fibrillary acidic protein. Taken together, our data suggest that meninges play an important role in astrocytic differentiation of NS/PCs in the developing brain. PMID- 29029364 TI - Ecm33 is a novel factor involved in efficient glucose uptake for nutrition responsive TORC1 signaling in yeast. AB - Glucose uptake is crucial for providing both an energy source and a signal that regulates cell proliferation. Therefore, it is important to clarify the mechanisms underlying glucose uptake and its transmission to intracellular signaling pathways. In this study, we searched for a novel regulatory factor involved in glucose-induced signaling by using Saccharomyces cerevisiae as a eukaryotic model. Requirement of the extracellular protein Ecm33 in efficient glucose uptake and full activation of the nutrient-responsive TOR kinase complex 1 (TORC1) signaling pathway is shown. Cells lacking Ecm33 elicit a series of starvation-induced pathways even in the presence of extracellular high glucose concentration. This results in delayed cell proliferation, reduced ATP, induction of autophagy, and dephosphorylation of the TORC1 substrates Atg13 and Sch9. PMID- 29029365 TI - Eighteen-month lamivudine prophylaxis on preventing occult hepatitis B virus infection reactivation in patients with haematological malignancies receiving immunosuppression therapy. AB - This study evaluated the long-term efficacy and safety of an 18-month lamivudine prophylaxis in 68 HBsAg-negative/anti-HBc-positive patients with oncohaematological disease. All 68 consecutive HBsAg-negative/anti-HBc-positive patients with an oncohaematological disease and naive for chemotherapy observed from April 2008 to December 2012 at 2 Hematology Units in Naples were treated with lamivudine for 18 months after stopping chemotherapy and monitored for HBsAg at months 1 and 3 during chemotherapy and then every 3 months after its discontinuation. During follow-up, 13 (19.1%) of the 68 patients died of complications related to their oncohaematological disease, and 3 (4%) showed a virological HBV reactivation (retroconversion to HBsAg positivity) 1-7 months after the discontinuation of lamivudine prophylaxis (2 treated for chronic lymphocytic leukaemia and one for Waldenstrom's disease); of these, 2 showed a biochemical reactivation. Comparing the demographic and clinical characteristics of the 3 patients with a virological HBV reactivation to the 65 without, the former were older (median age and range: 67 years [75-78] vs. 61 [24-88]; P = .05) and were less frequently treated for B-cell non-Hodgkin lymphoma (B-NHL) (0 vs. 70.7%, P = .03). In conclusion, a 18 months of lamivudine prophylaxis was effective in preventing HBV reactivation in HBsAg-negative/anti-HBc-positive patients treated for B-NHL. However, in patients with chronic and severe immunodepression, such as those with chronic lymphocytic leukaemia and Waldenstrom's disease, prophylaxis should be continued for an indefinite period. PMID- 29029366 TI - Directly Coupled Versus Spectator Linkers on Diimine PtII Acetylides-Change the Structure, Keep the Function? AB - Modification of light-harvesting units with anchoring groups for surface attachment often compromises light-harnessing properties. Herein, a series of [donor-acceptor-anchor] platinum(II) diimine (bis-)acetylides was developed in order to systematically compare the effect of conjugated versus electronically decoupled modes of attachment of protected anchoring groups on the photophysical properties of light-harvesting units. The first examples of "decoupled" phosphonate diimine PtII complexes are reported, and their properties are compared and contrasted to those of carboxylate analogues studied by a diversity of methods. Ultrafast time-resolved IR and transient absorption spectroscopy revealed that all complexes have a charge-transfer (CT) lowest excited state with lifetimes between 2 and 14 ns. Vibrational signatures and dynamics of CT states were identified; the assignment of electronic states and their vibrational origin was aided by TDDFT calculations. Ultrafast energy redistribution accompanied by structural changes was directly captured in the CT states. A significant difference between the structures of the electronic ground and CT excited states, as well as differences in the structural reorganisation in the complexes bearing directly attached or electronically decoupled anchoring groups, was discovered. This work demonstrates that decoupling of the anchoring group from the light harvesting core by a saturated spacer is an easy approach to combine surface attachment with high reduction potential and ten times longer lifetime of the CT excited state of the light-absorbing unit, and retain electron-transfer photoreactivity essential for light-harvesting applications. PMID- 29029367 TI - Genetic diversity of Plasmodium falciparum merozoite surface protein-1 (block 2), glutamate-rich protein and sexual stage antigen Pfs25 from Chandigarh, North India. AB - OBJECTIVE: To elucidate the genetic diversity of Plasmodium falciparum in residual transmission foci of northern India. METHODS: Clinically suspected patients with malaria were screened for malaria infection by microscopy. 48 P. falciparum-infected patients were enrolled from tertiary care hospital in Chandigarh, India. Blood samples were collected from enrolled patients, genomic DNA extraction and nested PCR was performed for further species confirmation. Sanger sequencing was carried out using block 2 region of msp1, R2 region of glurp and pfs25-specific primers. RESULTS: Extensive diversity was found in msp1 alleles with predominantly RO33 alleles. Overall allelic prevalence was 55.8% for RO33, 39.5% for MAD20 and 4.7% for K1. Six variants were observed in MAD20, whereas no variant was found in RO33 and K1 alleles. A phylogenetic analysis of RO33 alleles indicated more similarity to South African isolates, whereas MAD20 alleles showed similarity with South-East Asian isolates. In glurp, extensive variation was observed with eleven different alleles based on the AAU repeats. However, pfs25 showed less diversity and was the most stable among the targeted genes. CONCLUSION: Our findings document the genetic diversity among circulating strains of P. falciparum in an area of India with low malaria transmission and could have implications for control strategies to reach the national goal of malaria elimination. PMID- 29029368 TI - Who accesses surgery at district level in sub-Saharan Africa? Evidence from Malawi and Zambia. AB - OBJECTIVES: To examine age and gender distribution for the most common types of surgery in Malawi and Zambia. METHODS: Data were collected from major operating theatres in eight district hospitals in Malawi and nine in Zambia. Raw data on surgical procedures were coded by specialist surgeons for frequency analyses. RESULTS: In Malawi female surgical patients had a mean age of 25 years, with 91% aged 16-40 years. Females accounted for 85%, and obstetric cases for 75%, of all surgical patients. In Zambia, female surgical patients had a mean age of 26, with 75% aged 16-40 years. They accounted for 55% of all cases, 34% being obstetric. Male surgical patients in Malawi were on average older (33 years) than in Zambia (23 years). General surgical cases in men and women, respectively, had a median age of 42 and 32 in Malawi and 26 and 30 in Zambia. The median age of trauma patients was 12 in males and 10 in females in both countries. Children aged 0-15 years accounted for 64-65% of all trauma cases in Malawi and 57-58% in Zambia, with peak incidences in 6- to 10-year-olds. CONCLUSIONS: Women of reproductive (16-45 years) mainly undergoing Caesarean sections and children aged 0-15 years who accounted for two-thirds of trauma cases are the main patient populations undergoing surgery at district hospitals in Zambia and Malawi. Verification and analysis of routine hospital data, across 10-30% of districts countrywide, demonstrated the need to prioritise quality assurance in surgery and anaesthesia, and preventive interventions in children. PMID- 29029370 TI - Elder neglect-Oral diseases and injuries. AB - Elder neglect (EN) is the failure of a designated caregiver to meet the needs of a dependent older person. World EN prevalence, meta-analyzed in this study, is 1.0% or 1.8% according to different statistical methods. Referring alleged EN cases to Adult Protective Services (APSs) by healthcare workers (HCWs) is mandatory in many countries. However, only few claims are substantiated, as EN could be confused with Self-Neglect, and neglect could be unintentional or due to caregiver unawareness. Screening tools are inaccurate, and their use is discouraged by public health organizations, because they lead to too many false positives, which engulf the already overwhelmed APSs. HCWs need effective tools with objective judgments, which do not hamper the HCW-caregiver-patient rapport and prevent lawsuits when allegations are unfounded. Orofacial EN manifestations (poor oral/denture hygiene, lack of needed/improper dentures, dry mouth, skin/mucosal rashes) are essential Forensic Markers of EN. I classified EN associated oral diseases according to the unmet needs into four groups: (1) traumatic injuries due to lack of caregiver vigilance (e.g., maxillofacial fractures); (2) diseases due to oral hygiene deficiency (e.g., root caries); (3) diseases typical of the elderly with late/no diagnosis (e.g., oral cancer); and (4) diseases typical of the elderly exacerbated by psychological distress (e.g., oral lichen planus). PMID- 29029371 TI - Structures of a Complex Hydrazinium Lead Iodide, (N2 H5 )15 Pb3 I21 , Possessing [Pb2 I9 ]5- , [PbI6 ]4- , and I- Ions and alpha- and beta-(N2 H5 )PbI3. AB - Photovoltaic perovskites, most notably methylammonium lead triiodide, (NH3 Me)PbI3 , have recently attracted considerable attention, and based upon the modified "Goldschmidt" as well as a "revised" tolerance factors, hydrazinium should be able to occupy the same cation site as methylammonium, and form a cubic unit cell. The reaction of N2 H5+ I- with PbI2 in dimethylformamide results in three types of yellow crystals; hexagonal, needle-like, and rod-like, the structures of which were determined at 100 K. The hexagonal (P63 /m: a=10.8906(10) A; b=37.845(5) A) crystals possess isolated face-sharing octahedral [Pb2 I9 ]5- , [PbI6 ]4- , and I- ions. IR spectroscopy indicates the presence of hydrogen-bonded N2 H5+ and the composition was determined by single-crystal X-ray diffraction, density measurements, combustion elemental analysis, and thermogravimetric analysis to be (N2 H5 )15 Pb3 I21 , which is photoluminescent at 50 K, but not at room temperature. The needle and rod crystals have an orthorhombic (Pnma: a=11.1385(7) A; b=4.4806(3) A; c=17.6241(11) A) and hexagonal (P63 /mmc: a=8.7386(9) A; b=8.2006(9) A) unit cells, respectively, possessing the perovskite ABX3 composition of (N2 H5 )PbI3 , but neither exhibits the cubic Perovskite structure type. The structures of alpha- and beta-(N2 H5 )PbI3 possess parallel ribbons of Pb2 I4 and chains of PbI2 , respectively. Strong inter hydrazinium hydrogen bonding due to it possessing both hydrogen bonding donor and acceptor sites (unlike NH3 Me+ ) appear to stabilize the observed extended ribbon motif for (N2 H5 )15 Pb3 I21 and alpha-(N2 H5 )PbI3 . (N2 H5 )15 Pb3 I21 has a band-gap-like absorption of 2.34 eV, and both alpha- and beta-(N2 H5 )PbI3 have a 2.70 eV band-gap-like absorptions. PMID- 29029373 TI - Meet NPInfluence, an exclusive panel of nurse practitioner opinion leaders impacting the future of health care. PMID- 29029369 TI - No disparity of the efficacy and all-cause mortality between Asian and non-Asian type 2 diabetes patients with sodium-glucose cotransporter 2 inhibitors treatment: A meta-analysis. AB - AIMS/INTRODUCTION: To evaluate whether there is disparity of the efficacy and all cause mortality and other adverse effects between Asian and non-Asian patients with sodium-glucose cotransporter 2 (SGLT2) inhibitors treatment. MATERIALS AND METHODS: Randomized clinical trials publicly available before January 2017, comparing SGLT2 inhibitors treatment with a placebo in type 2 diabetes patients were identified. The association between treatment and outcomes was estimated by computing the weighted mean difference for glycated hemoglobin level, blood pressure level, lipid profile levels and bodyweight, and the odds ratios for adverse events. RESULTS: A total of 17 trials with Asian patients were included and 39 trials with non-Asian patients were included. Comparison of the glycated hemoglobin decreases corrected by a placebo between Asian and non-Asian patients showed that there was a non-significant difference of 0.05% between groups (P > 0.05). Comparisons of the bodyweight changes and blood pressure changes corrected by a placebo between Asian and non-Asian patients did not show a significant difference between groups (P > 0.05). The risk of all-cause mortality was not increased when compared with a placebo both in Asian and non-Asian populations, and the risk of genital infection in Asian and non-Asian populations were both significant increased. CONCLUSIONS: Overall, according to the present meta analysis, comparison of the efficacy in SGLT2 inhibitors treatment between Asian and non-Asian type 2 diabetes patients showed no significant difference in glycated hemoglobin reduction and bodyweight reduction. Furthermore, no disparity was found in the risk of all-cause mortality or hypoglycemia in SGLT2 inhibitors treatment between Asian and non-Asian patients. PMID- 29029374 TI - A look at some changes in publishing infrastructure. PMID- 29029376 TI - AANP News. PMID- 29029375 TI - Treatment and disease management of multiple sclerosis patients: A review for nurse practitioners. AB - BACKGROUND AND PURPOSE: This review discusses the role of the nurse practitioner (NP) in evaluating the clinical effects, potential side effects, and monitoring requirements for treatment options in multiple sclerosis (MS) and provides guidance on how to help patients understand these issues. METHODS: A literature search was conducted on PubMed to identify publications on monitoring and disease management of MS patients. Additional resources included drug information web sites and package inserts. CONCLUSIONS: NPs play an active role in the management of MS patients via effective monitoring and communication throughout the patient's treatment regimen and disease course. In the shared decision-making model of MS treatment, NPs ensure that patients understand the implications of their disease-modifying therapies (DMTs). As patients move through treatments during the course of their disease, the importance of this role increases, and it is critical that NPs follow the guidelines in each medication's product label and take into account any potential lingering effects of prior medications. IMPLICATIONS FOR PRACTICE: It is critical for NPs to promote patient adherence, to ensure that patients understand treatment side effects and monitoring requirements, and to take sequencing and reversibility implications of DMTs into account when making clinical decisions. PMID- 29029377 TI - Gain-of-function mutations in G-protein-coupled receptor genes associated with human endocrine disorders. AB - The human genome encodes more than 700 G-protein-coupled receptors (GPCRs), many of which are involved in hormone secretion. To date, more than 100 gain-of function (activating) mutations in at least ten genes for GPCRs, in addition to several loss-of-function mutations, have been implicated in human endocrine disorders. Previously reported gain-of-function GPCR mutations comprise various missense substitutions, frameshift mutations, intragenic inframe deletions and copy-number gains. Such mutations appear in both germline and somatic tumour cells, and lead to various hormonal abnormalities reflecting excessive receptor activity. Phenotypic consequences of these mutations include distinctive endocrine syndromes, as well as relatively common hormonal abnormalities. Such mutations encode hyperfunctioning receptors with increased constitutive activity, broadened ligand specificity, increased ligand sensitivity and/or delayed receptor desensitization. Furthermore, recent studies proposed a paradoxical gain of-function mechanism caused by inactive GPCR mutants. Molecular diagnosis of GPCR activating mutations serves to improve the clinical management of mutation positive patients. This review aims to introduce new aspects regarding gain-of function mutations in GPCR genes associated with endocrine disorders. PMID- 29029378 TI - Gpn3 is polyubiquitinated on lysine 216 and degraded by the proteasome in the cell nucleus in a Gpn1-inhibitable manner. AB - Gpn1 associates with Gpn3, and both are required for RNA polymerase II nuclear targeting. Global studies have identified by mass spectrometry that human Gpn3 is ubiquitinated on lysines 189 and 216. Our goals here were to determine the type, physiological importance, and regulation of Gpn3 ubiquitination. After inhibiting the proteasome with MG132, Gpn3-Flag was polyubiquitinated on K216, but not K189, in HEK293T cells. Gpn3-Flag exhibited nucleo-cytoplasmic shuttling, but polyubiquitination and proteasomal degradation of Gpn3-Flag occurred only in the cell nucleus. Polyubiquitination-deficient Gpn3-Flag K216R displayed a longer half-life than Gpn3-Flag in two cell lines. Interestingly, Gpn1-EYFP inhibited Gpn3-Flag polyubiquitination in a dose-dependent manner. In conclusion, Gpn1 inhibitable, nuclear polyubiquitination on lysine 216 regulates the half-life of Gpn3 by tagging it for proteasomal degradation. PMID- 29029379 TI - Role of 24-epibrassinolide (EBL) in mediating heavy metal and pesticide induced oxidative stress in plants: A review. AB - Industrialization and urbanization have posed serious threats to the environment. Excessive release of heavy metals from industrial effluents and overuse of pesticides in modern agriculture are limiting crop production by polluting environment and deteriorating food quality. Sustaining food quality under heavy metals and pesticide stress is crucial to meet the increasing demands for food. 24-Epibrassinolide (EBL), a ubiquitously occurring plant growth hormone shows great potential to alleviate heavy metals and pesticide stress in plants. This review sums up the potential role of EBL in ameliorating heavy metals and pesticide toxicity in plants extensively. EBL application increases plant's overall growth, biomass accumulation and photosynthetic efficiency by the modulation of numerous biochemical and physiological processes under heavy metals and pesticide stress. In addition, EBL scavenges reactive oxygen species (ROS) by triggering the production of antioxidant enzymes such as SOD, CAT, POX etc. EBL also induces the production of proline and soluble proteins that helps in maintaining osmotic potential and osmo-protection under both heavy metals and pesticide stress. At the end, future needs of research about the application of 24-epibrassinolide have also been discussed. PMID- 29029380 TI - Is the microcosm approach using meiofauna community descriptors a suitable tool for ecotoxicological studies? AB - The usual approaches used in ecological risk assessment have been based on individual and population level standard procedures. Although these have been important tools to assess adverse effects on ecosystems, they are generally simplified and therefore lack ecological realism. Microcosm studies using meiobenthic communities offer a good compromise between the complexity of the ecosystem and the often highly artificial settings of laboratory experiments. An experiment was designed to investigate the potential of the microcosm approach using meiofauna as a tool for ecotoxicological studies. The experiment tested the ecological effects of exposure to sewage-impacted pore water simultaneously at the community level using meiofauna microcosms and at the individual level using laboratory fecundity tests with the copepod Nitokra sp. Specifically, the experiment tested the toxicity of pore water from three sites according to a contamination gradient. Both approaches were efficient in detecting differences in toxicity between the less and more contaminated sites. However, only multivariate data from community analysis detected differences in the gradient of contamination. In addition to information about toxicity, the community level microcosm experiment gave indications about sensitive and tolerant species, indirect ecological effects, as well as raised hypothesis about contamination routes and bioavailability to be tested. Considering the importance of meiofauna for benthic ecosystems, the microcosm approach using natural meiobenthic communities might be a valuable addition as a higher tier approach in ecological risk assessment, providing highly relevant ecological information on the toxicity of contaminated sediments. PMID- 29029381 TI - Biochemical responses and accumulation patterns of Mytilus galloprovincialis exposed to thermal stress and Arsenic contamination. AB - Organisms in marine systems are exposed to multiple stressors that create a range of associated environmental and ecotoxicological risks. Examples of stressors include alterations related to climate change, such as temperature increase, and the exposure to pollutants arising from human activities. The present study evaluated the impacts of Arsenic exposure (1mg/L) and warming (21 degrees C) in Mytilus galloprovincialis, acting alone and in combination. Our results demonstrated that both Arsenic exposure and warming induced oxidative stress and reduced mussels metabolism, with changes becoming more prominent with the exposure time and when mussels were exposed to both stressors in combination. Furthermore, results obtained showed higher As accumulation in organisms exposed to warming treatments. The present study showed that under warming scenarios, the negative impacts induced by As may be enhanced in ecologically and economically relevant bivalves, with potential impacts on population stocks due to increased sensitivity to pollutants, which may eventually result in biodiversity loss and socio-economic impacts. PMID- 29029382 TI - Differential impacts of six insecticides on a mealybug and its coccinellid predator. AB - Broad-spectrum insecticides may disrupt biological control and cause pest resurgence due to their negative impacts on natural enemies. The preservation of sustainable pest control in agroecosystems requires parallel assessments of insecticide toxicity to target pests and their key natural enemies. In the present study, the leaf dipping method was used to evaluate the relative toxicity of six insecticides to the striped mealybug, Ferrisia dasylirii (Cockerell) (Hemiptera: Pseudococcidae) and its predator, Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae). Three neurotoxic insecticides, lambda-cyhalothrin, methidathion and thiamethoxam, caused complete mortality of both pest and predator when applied at their highest field rates. In contrast, lufenuron, pymetrozine and pyriproxyfen caused moderate mortality of third-instar mealybug nymphs, and exhibited low or no toxicity to either larvae or adults of the lady beetle. At field rates, lufenuron and pymetrozine had negligible effects on prey consumption, development or reproduction of T. notata, but adults failed to emerge from pupae when fourth instar larvae were exposed to pyriproxyfen. In addition, pyriproxyfen caused temporary sterility; T. notata females laid non viable eggs for three days after exposure, but recovered egg fertility thereafter. Our results indicate that the three neurotoxic insecticides can potentially control F. dasylirii, but are hazardous to its natural predator. In contrast, lufenuron and pymetrozine appear compatible with T. notata, although they appear less effective against the mealybug. Although the acute toxicity of pyriproxyfen to T. notata was low, some pupal mortality and reduced egg fertility suggest that this material could impede the predator's numerical response to mealybug populations. PMID- 29029383 TI - DPP4 inhibition prevents AKI. PMID- 29029384 TI - p53 upregulates PLCepsilon-IP3-Ca2+ pathway and inhibits autophagy through its target gene Rap2B. AB - The tumor suppressor p53 plays a pivotal role in numerous cellular responses as it regulates cell proliferation, metabolism, cellular growth, and autophagy. In order to identify novel p53 target genes, we utilized an unbiased microarray approach and identified Rap2B as a robust candidate, which belongs to the Ras related GTP-binding protein superfamily and exhibits increased expression in various human cancers. We demonstrated that p53 increases the intracellular IP3 and Ca2+ levels and decreases the LC3 protein levels through its target gene Rap2B, suggesting that p53 can inhibit the autophagic response triggered by starvation via upregulation of the Rap2B-PLCepsilon-IP3-Ca2+ pathway. As a confirmed target gene of p53, we believe that further investigating potential functions of Rap2B in autophagy and tumorigenesis will provide a novel strategy for cancer therapy. PMID- 29029387 TI - The beta-NAD+ salvage pathway and PKC-mediated signaling influence localized PARP 1 activity and CTCF Poly(ADP)ribosylation. AB - Poly(ADP)ribosylation (PARylation) of the chromatin architectural protein CTCF is critical for CTCF-dependent regulation of chromatin boundary and insulator elements. Loss of CTCF PARylation results in epigenetic silencing of certain tumor suppressor genes through destabilization of nearby chromatin boundaries. We investigated the metabolic and mechanistic processes that regulate PARP-1 mediated CTCF PARylation in human cancer cell lines and discovered a key role for the expression and activity of beta-NAD+ salvage enzymes, NAMPT and NMNAT-1. These enzymes are downregulated in cells that exhibit reduced CTCF PARylation, resulting in a decreased concentration of nuclear beta-NAD+. In these cells, decreased NMNAT-1 expression is enforced by a proteasome-mediated feedback loop resulting in degradation of NMNAT-1, transcriptional repression of NAMPT, and suppression of PARP-1 activity. Interestingly, dePARylated CTCF is associated in a stable protein complex with PARP-1 and NMNAT-1 in cancer cells harboring silenced tumor suppressor genes. Although the metabolic context in these cells favors suppression of PARP-1 activity, CTCF PARylation can be restored by Protein Kinase C (PKC) signaling. PKC induces dissociation of the catalytically inactive PARP-1/NMNAT-1/CTCF protein complex and phosphorylation of NMNAT-1, which stimulates its proteasome-mediated degradation. Our findings suggest that CTCF PARylation is underpinned by a cellular metabolic context engendered by regulation of the beta-NAD+ salvage pathway in which NMNAT-1 acts as a rheostat to control localized beta-NAD+ synthesis at CTCF/PARP-1 complexes. PMID- 29029386 TI - Exome sequencing analysis of murine medulloblastoma models identifies WDR11 as a potential tumor suppressor in Group 3 tumors. AB - Mouse models of human cancers are widely used in cancer research, yet questions frequently arise regarding their faithfulness in recapitulating their human counterparts. To compare the somatic mutations of murine models with human medulloblastoma (MB), we performed whole-exome sequencing on 12 tumors representing three distinct medulloblastoma subgroups: Wnt, Sonic Hedgehog (Shh) and Group 3 (G3). In total, 64 somatic mutations were identified and validated, including 40 predicted to cause amino acid changes. After filtering and cross species analysis with 366 human MBs from four independent studies, human orthologs for 16 of the 40 mouse genes were found to harbor non-silent mutations in human MB. Loss-of-function Kmt2d mutations detected in one mouse tumor was previously reported in 30 of 366 human MBs. In mice bearing G3 MB, one mouse succumbed to tumor burden at least 15 days earlier than other mice, raising the possibility that somatic mutations may have accelerated the tumorigenesis process. In this mouse tumor, four novel candidate genes harbored non-silent somatic mutations, Lrfn2, Smyd1, Ubn2 and Wdr11. Extended survival was found in mice harboring mouse G3 overexpressing WDR11 but not the other three genes. Genes in the KEGG WNT signaling pathway, including Ccnd1/2/3, Myc and Tcf7l1, were down regulated in the transcriptome of G3 MB tumorspheres overexpressing WDR11, consistent with reduced tumor progression. In conclusion, we demonstrated that common spontaneous mutations were shared between human and murine models of MB suggesting similar molecular mechanisms of tumorigenesis, and identified WDR11 as a protein with tumor suppressive activity in G3 MB. PMID- 29029388 TI - Rapamycin-induced miR-21 promotes mitochondrial homeostasis and adaptation in mTORC1 activated cells. AB - mTORC1 hyperactivation drives the multi-organ hamartomatous disease tuberous sclerosis complex (TSC). Rapamycin inhibits mTORC1, inducing partial tumor responses; however, the tumors regrow following treatment cessation. We discovered that the oncogenic miRNA, miR-21, is increased in Tsc2-deficient cells and, surprisingly, further increased by rapamycin. To determine the impact of miR 21 in TSC, we inhibited miR-21 in vitro. miR-21 inhibition significantly repressed the tumorigenic potential of Tsc2-deficient cells and increased apoptosis sensitivity. Tsc2-deficient cells' clonogenic and anchorage independent growth were reduced by ~50% (p<0.01) and ~75% (p<0.0001), respectively, and combined rapamycin treatment decreased soft agar growth by ~90% (p<0.0001). miR 21 inhibition also increased sensitivity to apoptosis. Through a network biology driven integration of RNAseq data, we discovered that miR-21 promotes mitochondrial adaptation and homeostasis in Tsc2-deficient cells. miR-21 inhibition reduced mitochondrial polarization and function in Tsc2-deficient cells, with and without co-treatment with rapamycin. Importantly, miR-21 inhibition limited Tsc2-deficient tumor growth in vivo, reducing tumor size by approximately 3-fold (p<0.0001). When combined with rapamcyin, miR-21 inhibition showed even more striking efficacy, both during treatment and after treatment cessation, with a 4-fold increase in median survival following rapamycin cessation (p=0.0008). We conclude that miR-21 promotes mTORC1-driven tumorigenesis via a mechanism that involves the mitochondria, and that miR-21 is a potential therapeutic target for TSC-associated hamartomas and other mTORC1 driven tumors, with the potential for synergistic efficacy when combined with rapalogs. PMID- 29029389 TI - A ketogenic diet supplemented with medium-chain triglycerides enhances the anti tumor and anti-angiogenic efficacy of chemotherapy on neuroblastoma xenografts in a CD1-nu mouse model. AB - Neuroblastoma (NB) is a pediatric malignancy characterized by a marked reduction in aerobic energy metabolism. Recent preclinical data indicate that targeting this metabolic phenotype by a ketogenic diet (KD), especially in combination with calorie restriction, slows tumor growth and enhances metronomic cyclophosphamide (CP) therapy of NB xenografts. Because calorie restriction would be contraindicated in most cancer patients, the aim of the present study was to optimize the KD such that the tumors are sensitized to CP without the need of calorie restriction. In a NB xenograft model, metronomic CP was combined with KDs of different triglyceride compositions and fed to CD1-nu mice ad libitum. Metronomic CP in combination with a KD containing 8-carbon medium-chain triglycerides exerted a robust anti-tumor effect, suppressing growth and causing a significant reduction of tumor blood-vessel density and intratumoral hemorrhage, accompanied by activation of AMP-activated protein kinase in NB cells. Furthermore, the KDs caused a significant reduction in the serum levels of essential amino acids, but increased those of serine, glutamine and glycine. Our data suggest that targeting energy metabolism by a modified KD may be considered as part of a multimodal treatment regimen to improve the efficacy of classic anti NB therapy. PMID- 29029385 TI - Analyses of germline variants associated with ovarian cancer survival identify functional candidates at the 1q22 and 19p12 outcome loci. AB - We previously identified associations with ovarian cancer outcome at five genetic loci. To identify putatively causal genetic variants and target genes, we prioritized two ovarian outcome loci (1q22 and 19p12) for further study. Bioinformatic and functional genetic analyses indicated that MEF2D and ZNF100 are targets of candidate outcome variants at 1q22 and 19p12, respectively. At 19p12, the chromatin interaction of a putative regulatory element with the ZNF100 promoter region correlated with candidate outcome variants. At 1q22, putative regulatory elements enhanced MEF2D promoter activity and haplotypes containing candidate outcome variants modulated these effects. In a public dataset, MEF2D and ZNF100 expression were both associated with ovarian cancer progression-free or overall survival time. In an extended set of 6,162 epithelial ovarian cancer patients, we found that functional candidates at the 1q22 and 19p12 loci, as well as other regional variants, were nominally associated with patient outcome; however, no associations reached our threshold for statistical significance (p<1*10-5). Larger patient numbers will be needed to convincingly identify any true associations at these loci. PMID- 29029391 TI - Ginsenoside Rg3 inhibits the senescence of prostate stromal cells through down regulation of interleukin 8 expression. AB - Senescent stromal cells support the development of prostate cancer and are considered potential therapeutic targets. This research evaluated the regulatory effects of ginsenoside Rg3 on the senescence of prostatic stromal cells pre incubated in medium supplemented with 0.5% fetal bovine serum. The results revealed that ginsenoside Rg3 decreased the number of stromal cells positively stained with a senescent cell marker (senescence-associated beta-galactosidase). Ginsenoside Rg3 also increased the viability of stromal cells and promoted cell cycle transition from G0/G1 to S phase, as well as inhibited the carcinoma associated fibroblast-like phenotype in prostate stromal cells, through the up regulation of smooth muscle cell markers SM22 and smooth muscle myosin heavy chain. Conditioned medium collected from stromal cells treated with ginsenoside Rg3 exhibited an attenuated effect on the promotion of prostate cancer cell migration compared with conditioned medium from stromal cells without Rg3 treatment. Down-regulation of interleukin 8 (IL-8) in a dose- and time-dependent manner was observed in ginsenoside Rg3-treated stromal cells, and over-expression or addition of IL-8 reversed the anti-senescence role of Rg3 in prostate stromal cells. Furthermore, ginsenoside Rg3 down-regulated IL-8 expression by decreasing the reactive oxygen species level in prostatic stromal cells and reducing the transcriptional activity of IL-8 promoter by damping the transcription factors C/EBP beta and p65 binding to IL-8 promoter. Our research revealed that ginsenoside Rg3 was able to inhibit prostate stromal cell senescence by down regulating IL-8 expression. The results suggest a potential value for ginsenoside Rg3 in prostate cancer treatment through the targeting of pro-carcinogenic senescent stromal cells. PMID- 29029392 TI - Spermine and spermidine reversed age-related cardiac deterioration in rats. AB - Aging is the most important risk factor for cardiovascular disease (CVD). Slowing or reversing the physiological impact of heart aging may reduce morbidity and mortality associated with age-related CVD. The polyamines, spermine (SP) and spermidine (SPD) are essential for cell growth, differentiation and apoptosis, and levels of both decline with age. To explore the effects of these polyamines on heart aging, we administered SP or SPD intraperitoneally to 22- to 24-month old rats for 6 weeks. Both treatments reversed and inhibited age-related myocardial morphology alterations, myocardial fibrosis, and cell apoptosis. Using combined proteomics and metabolomics analyses, we identified proteins and metabolites up- or downregulated by SP and SPD in aging rat hearts. SP upregulated 51 proteins and 28 metabolites while downregulating 80 proteins and 29 metabolites. SPD upregulated 44 proteins and 24 metabolites and downregulated 84 proteins and 176 metabolites. These molecules were mainly associated with immune responses, blood coagulation, lipid metabolism, and glutathione metabolism pathways. Our study provides novel molecular information on the cardioprotective effects of polyamines in the aging heart, and supports the notion that SP and SPD are potential clinical therapeutics targeting heart disease. PMID- 29029394 TI - Long non-coding RNA H19 induces hippocampal neuronal apoptosis via Wnt signaling in a streptozotocin-induced rat model of diabetes mellitus. AB - Defects in hippocampal synaptic plasticity and disorders of memory and learning are the central nervous system complications of diabetes mellitus (DM). Here, we used a streptozotocin-induced rat DM model to investigate the effects of long non coding RNA H19 (lncRNA H19) on learning and memory and apoptosis of hippocampal neurons, and the involvement of the Wnt signaling. Our data demonstrate that lncRNA H19 is highly expressed in rats with DM. Over-expression of lncRNA H19 increased positioning navigation latency in DM rats and decreased duration of space exploration. lncRNA H19 over-expression also increased hippocampal neuronal apoptosis and expression of Wnt3, beta-catenin, TCF-1, Bax, caspase-8 and caspase 3. By contrast, expression of GSK-3beta and Bcl-2 was suppressed in DM rats over expressing lncRNA H19. These results suggest that lncRNA H19 induces hippocampal neuronal apoptosis via Wnt signaling, and that inhibition of lncRNA H19 may serve as a promising novel target for the treatment of cognitive decline in patients with DM. PMID- 29029393 TI - Intermittent treatment with farnesyltransferase inhibitor and sulforaphane improves cellular homeostasis in Hutchinson-Gilford progeria fibroblasts. AB - Hutchinson-Gilford progeria syndrome (HGPS) is a rare genetic condition associated with mutations in the LMNA gene. This disease recapitulates some aspects of normal aging, such as hair loss, thin skin, joint stiffness, and atherosclerosis. The latter leads to heart attack or stroke that causes death at an average age of 14.6 years in children with HGPS. The typical LMNA mutation results in the production of a truncated prelamin A protein, progerin, that remains permanently farnesylated and abnormally associated with the nuclear envelope. Farnesyltransferase inhibitors (FTIs) reverse nuclear structure abnormalities that are characteristic of HGPS cells. The first clinical trial using the FTI, Ionafarnib, demonstrated some improvements in HGPS children and, in particular, showed a decrease in arterial stiffness. Recently, we reported that sulforaphane, an antioxidant derived from cruciferous vegetables, efficiently stimulates autophagy and enhances progerin clearance in HGPS fibroblasts. In the present study, we investigated the effect of combined lonafarnib and sulforaphane treartment in HGPS fibroblast cultures. We report that co-administration of both drugs exerts a synergistic and additive positive effect on autophagy activity but was cytotoxic to HGPS cells. In contrast, intermittent treatment with lonafarnib followed by sulforaphane separately and in repeated cycles rescued the HGPS cellular phenotype. We propose that intermittent treatment with FTI and SFN separately might be a promising therapeutic avenue for children with HGPS. PMID- 29029395 TI - RASAL1 is a potent regulator of hepatic stellate cell activity and liver fibrosis. AB - Liver fibrosis, leading to cirrhosis and liver failure, can occur after chronic liver injury. The transition of hepatic stellate cells (HSCs) from quiescent cells into proliferative and fibrogenic cells is a central event in liver fibrosis. Here, we show that RAS protein activator like-1 (RASAL1), a RAS-GTPase activating protein, which switches off RAS activity, is significantly decreased during HSC activation, and that HSC activation can be antagonized by forced expression of the RASAL1 protein. We demonstrate that RASAL1 suppresses HSC proliferation by regulating the Ras-MAPK pathway, and that RASAL1 suppresses HSC fibrogenic activity by regulating the PKA-LKB1-AMPK-SRF pathway by interacting with angiotensin II receptor, type 1. We also show that RASAL1-deficient mice are more susceptible to liver fibrosis. These data demonstrate that deregulated RASAL1 expression levels and the affected downstream intracellular signaling are central mediators of perpetuated HSC activation and fibrogenesis in the liver. PMID- 29029390 TI - Extracellular truncated tau causes early presynaptic dysfunction associated with Alzheimer's disease and other tauopathies. AB - The largest part of tau secreted from AD nerve terminals and released in cerebral spinal fluid (CSF) is C-terminally truncated, soluble and unaggregated supporting potential extracellular role(s) of NH2 -derived fragments of protein on synaptic dysfunction underlying neurodegenerative tauopathies, including Alzheimer's disease (AD). Here we show that sub-toxic doses of extracellular-applied human NH2 tau 26-44 (aka NH 2 htau) -which is the minimal active moiety of neurotoxic 20-22kDa peptide accumulating in vivo at AD synapses and secreted into parenchyma acutely provokes presynaptic deficit in K+ -evoked glutamate release on hippocampal synaptosomes along with alteration in local Ca2+ dynamics. Neuritic dystrophy, microtubules breakdown, deregulation in presynaptic proteins and loss of mitochondria located at nerve endings are detected in hippocampal cultures only after prolonged exposure to NH 2 htau. The specificity of these biological effects is supported by the lack of any significant change, either on neuronal activity or on cellular integrity, shown by administration of its reverse sequence counterpart which behaves as an inactive control, likely due to a poor conformational flexibility which makes it unable to dynamically perturb biomembrane-like environments. Our results demonstrate that one of the AD relevant, soluble and secreted N-terminally truncated tau forms can early contribute to pathology outside of neurons causing alterations in synaptic activity at presynaptic level, independently of overt neurodegeneration. PMID- 29029396 TI - Activation of cannabinoid receptor type II by AM1241 protects adipose-derived mesenchymal stem cells from oxidative damage and enhances their therapeutic efficacy in myocardial infarction mice via Stat3 activation. AB - The poor survival of cells in ischemic sites diminishes the therapeutic efficacy of stem cell therapy. Previously we and others have reported that Cannabinoid receptor type II (CB2) is protective during heart ischemic injury for its anti oxidative activity. However, whether CB2 activation could improve the survival and therapeutic efficacy of stem cells in ischemic myocardium and the underlying mechanisms remain elusive. Here, we showed evidence that CB2 agonist AM1241 treatment could improve the functional survival of adipose-derived mesenchymal stem cells (AD-MSCs) in vitro as well as in vivo. Moreover, AD-MSCs adjuvant with AM1241 improved cardiac function, and inhibited cardiac oxidative stress, apoptosis and fibrosis. To unveil possible mechanisms, AD-MSCs were exposed to hydrogen peroxide/serum deprivation to simulate the ischemic environment in myocardium. Results delineated that AM1241 blocked the apoptosis, oxidative damage and promoted the paracrine effects of AD-MSCs. Mechanistically, AM1241 activated signal transducers and activators of transcription 3 (Stat3) through the phosphorylation of Akt and ERK1/2. Moreover, the administration of AM630, LY294002, U0126 and AG490 (inhibitors for CB2, Akt, ERK1/2 and Stat3, respectively) could abolish the beneficial actions of AM1241. Our result support the promise of CB2 activation as an effective strategy to optimize stem cell based therapy possibly through Stat3 activation. PMID- 29029397 TI - Tsp1 promotes alveolar stem cell proliferation and its down-regulation relates to lung inflammation in intralobar pulmonary sequestration. AB - An aberrant systemic artery supply results in recurrent infections in the abnormal lung lobe of intralobar pulmonary sequestration (ILS). The mechanisms underlying such persistent inflammation are unknown. Here, we hypothesize that alteration of an endothelial cell niche for alveolar epithelial cells results in the impaired proliferation potential of alveolar progenitor cells, leading to the defective defense mechanism in intralobar pulmonary sequestration. Paraffin sections of lung tissues from patients with intralobar pulmonary sequestration or from healthy controls were collected for analysis of alveolar epithelial alterations in intralobar pulmonary sequestration by quantitative RT-PCR or immunofluorescent staining. Differential transcripts were identified between human pulmonary artery endothelial cells and human aortic endothelial cells by microarray. Validation of microarray data by quantitative PCR analysis indicated that thrombospondin-1 expression level is low in near-lesion part but high in lesion part of ILS lobe as compared to healthy controls. In vitro 3-D matrigel culture was adopted to evaluate the regulation of alveolar progenitor cells by thrombospondin-1 and CD36. We found that the proliferative potential of alveolar type 2 stem/progenitor cells was impaired in intralobar pulmonary sequestration. Mechanistically, we discovered that endothelial thrombospondin-1 promotes alveolar type 2 cell proliferation through the interaction with CD36. These data demonstrate that alveolar stem cells are impaired in the abnormal lobe from patients with intralobar pulmonary sequestration and imply that restoring epithelial integrity can be beneficial for the future treatments of recurrent infections in lung pathologies. PMID- 29029398 TI - Dietary ZnO nanoparticles alters intestinal microbiota and inflammation response in weaned piglets. AB - The present study was carried out to determine whether low dose of zinc oxide nanoparticles (Nano-ZnO) could serve as a potential substitute of pharmacological dose of traditional ZnO in weaned piglets. 180 crossbred weaning piglets were randomly assigned to 3 treatments. Experimental animals were fed basal diet supplemented with 0 mg Zn/kg (Control), 600 mg Zn/kg (Nano-ZnO) and 2000 mg Zn/kg (ZnO) for 14 days. On day 14 after weaning, the piglets fed Nano-ZnO did not differ from those fed traditional ZnO in growth performance and jejunal morphology, while Nano-ZnO treatment could significantly alleviate the incidence of diarrhea (P < 0.05). In jejunum, the mRNA expressions of intestinal antioxidant enzymes and tight junction proteins were increased (P < 0.05) in Nano ZnO treatment. In ileum, the expression levels of IFN-gamma, IL-1beta, TNF-alpha and NF-kappaB were decreased (P < 0.05). Gene sequencing analysis of 16S rRNA revealed that dietary Nano-ZnO increased the bacterial richness and diversity in ileum, while decreased both of them in cecum and colon. Specifically, the relative abundances of Streptococcus in ileum, Lactobacillus in colon were increased, while the relative abundances of Lactobacillus in ileum, Oscillospira and Prevotella in colon were decreased (P < 0.05). In conclusion, our data reveal that low dose of Nano-ZnO (600 mg Zn/kg) can effectively reduce piglet diarrhea incidence, similar to high dose of traditional ZnO (2000 mg Zn/kg), which may be mediated by improving intestinal microbiota and inflammation response in piglets, and help to reduce zinc environmental pollution. PMID- 29029399 TI - A cellular platform for the evaluation of immune checkpoint molecules. AB - Blockade of the T cell coinhibitory molecules CTLA-4 and PD-1 has clinical utility to strengthen T cell responses. In addition to these immune checkpoints an ever-growing number of molecules has been implicated in generating coinhibitory signals in T cells. However, investigating coinhibitory molecules in primary human cells is complicated by the restricted expression and promiscuity of both coinhibitory receptors and their ligands. Here we have evaluated the potential of fluorescence-based transcriptional reporters based on the human Jurkat T cell line in conjunction with engineered T cell stimulator cell lines for investigating coinhibitory pathways. CTLA-4, PD-1, TIGIT, BTLA and 2B4 expressing reporter cells were generated and activated with T cell stimulator cells expressing cognate ligands of these molecules. All accessory molecules tested were functional in our reporter system. Engagement of CTLA-4, PD-1, BTLA and TIGIT by their ligands significantly inhibited T cell activation, whereas binding of 2B4 by CD48 resulted in enhanced responses. Mutational analysis revealed intracellular motifs that are responsible for BTLA mediated T cell inhibition and demonstrates potent reporter inhibition by CTLA-4 independent of cytoplasmic signaling motifs. Moreover, considerably higher IC50 values were measured for the CTLA-4 blocker Ipilimumab compared to the PD-1 antibody Nivolumab. Our findings show that coinhibitory pathways can be evaluated in Jurkat-based transcriptional reporters and yield novel insights on their function. Results obtained from this robust reductionist system can complement more time consuming and complex studies of such pathways in primary T cells. PMID- 29029400 TI - Rat embryonic fibroblasts immortalized by MRPS18-2 protein are target for NK cells. AB - Overexpression of the human mitochondrial ribosomal protein MRPS18-2 (S18-2) led to immortalization of primary rat embryonic fibroblasts (REFs). The derived cells (18IM) expressed embryonic stem cell markers. Noteworthy, genes encoding the COX family proteins were up-regulated significantly. It is known that the COX family proteins are involved in the regulation of immune response. In the present work we demonstrate that 18IM cells behave like stem cells when subjected to directed differentiation in vitro. However, unlike stem cells, 18IM cells do not develop tumors in vivo, in SCID mice. This phenomenon is observed due to the strong natural killer (NK) cell immunogenicity. 18IM cells were better recognized by NK cells, compared with primary REFs, as was shown by a standard NK killing assay. Our data explain asymmetry in behavior of stem-like cells in vivo and in vitro, and this support the notion that stem and/or cancer-initiating cells are preferred targets for NK-cells. Concluding, the S18-2 protein is a putative target for cancer vaccines. PMID- 29029401 TI - Lysine methylation of FEN1 by SET7 is essential for its cellular response to replicative stress. AB - The DNA damage response (DDR) is central to the cell survival and it requires post-translational modifications, in part, to sense the damage, amplify the signaling response and recruit and regulate DNA repair enzymes. Lysine methylation of histones such as H4K20 and non-histone proteins including p53 has been shown to be essential for the mounting of the DDR. It is well-known that the lysine methyltransferase SET7 regulates the DDR, as cells lacking this enzyme are hypersensitive to chemotherapeutic drugs. To define addition substrates of SET7 involved in the DDR, we screened a peptide array encompassing potential lysine methylation sites from >100 key DDR proteins and identified peptides from 58 proteins to be lysine methylated defining a methylation consensus sequence of [S>K-2; S>R-1; K0] consistent with previous findings. We focused on K377 methylation of the Flap endonuclease 1 (FEN1), a structure specific endonuclease with important functions in Okazaki fragment processing during DNA replication as a substrate of SET7. FEN1 was monomethylated by SET7 in vivo in a cell cycle dependent manner with levels increasing as cells progressed through S phase and decreasing as they exited S phase, as detected using K377me1 specific antibodies. Although K377me1 did not affect the enzymatic activity of FEN1, it was required for the cellular response to replicative stress by FEN1. These finding define FEN1 as a new substrate of SET7 required for the DDR. PMID- 29029403 TI - Marital status and survival in patients with primary liver cancer. AB - BACKGROUND: Marital status is viewed as an independent prognostic factor for survival in various cancer types. However, its role in primary liver cancer has yet to be thoroughly explored. OBJECTIVE: To investigate the impact of marital status on survival outcomes among liver cancer patients. RESULTS: We finally identified 40,809 eligible liver cancer patients between 2004 and 2012, including 21,939 (53.8%) patients were married at diagnosis and 18,870 (46.2%) were unmarried (including 5,871 divorced/separated, 4,338 widowed and 8,660 single). Married patients enjoyed overall and cause-specific survival outcomes compared with patients who were divorced/separated, widowed, single, respectively. The survival benefit associated with marriage still persisted even after adjusted for known confounders. Widowed individuals were at greater risk of overall and cancer specific mortality compared to other groups. Similar associations were observed in subgroup analyses according to SEER stage. MATERIALS AND METHODS: We used the Surveillance, Epidemiology and End Results (SEER) database to identify 40,809 patients diagnosed with primary liver cancer between 2004 and 2012. Kaplan-Meier analysis and Cox regression were performed to identify the influence of marital status on overall survival (OS) and liver cancer-specific survival (CSS). CONCLUSIONS: In primary liver cancer patients, married patients enjoyed survival benefits while widowed persons suffered survival disadvantages in both overall survival and cancer-specific survival. PMID- 29029402 TI - Notch signaling regulates metabolic heterogeneity in glioblastoma stem cells. AB - Glioblastoma (GBM) stem cells (GSCs) reside in both hypoxic and vascular microenvironments within tumors. The molecular mechanisms that allow GSCs to occupy such contrasting niches are not understood. We used patient-derived GBM cultures to identify GSC subtypes with differential activation of Notch signaling, which co-exist in tumors but occupy distinct niches and match their metabolism accordingly. Multipotent GSCs with Notch pathway activation reside in perivascular niches, and are unable to entrain anaerobic glycolysis during hypoxia. In contrast, most CD133-expressing GSCs do not depend on canonical Notch signaling, populate tumors regardless of local vascularity and selectively utilize anaerobic glycolysis to expand in hypoxia. Ectopic activation of Notch signaling in CD133-expressing GSCs is sufficient to suppress anaerobic glycolysis and resistance to hypoxia. These findings demonstrate a novel role for Notch signaling in regulating GSC metabolism and suggest intratumoral GSC heterogeneity ensures metabolic adaptations to support tumor growth in diverse tumor microenvironments. PMID- 29029404 TI - Quercetin induced ROS production triggers mitochondrial cell death of human embryonic stem cells. AB - Small molecules to selectively induce cell death of undifferentiated human pluripotent stem cells (hPSCs) have been developed with the aim of lowering the risk of teratoma formation during hPSC-based cell therapy. In this context, we have reported that Quercetin (QC) induces cell death selectively in hESCs via p53 mitochondrial localization. However, the detailed molecular mechanism by which hESCs undergo selective cell death induced by QC remains unclear. Herein, we demonstrate that mitochondrial reactive oxygen species (ROS), strongly induced by QC in human embryonic stem cells (hESCs) but not in human dermal fibroblasts (hDFs), were responsible for QC-mediated hESC's cell death. Increased p53 protein stability and subsequent mitochondrial localization by QC treatment triggered mitochondrial cell death only in hESCs. Of interest, peptidylprolyl isomerase D [PPID, also called cyclophilin D (CypD)], which functions in mitochondrial permeability transition and mitochondrial cell death, was highly expressed in hESCs. Inhibition of CypD by cyclosporine A (CsA) clearly inhibited the QC mediated loss of mitochondrial membrane potential and mitochondrial cell death. These results suggest that p53 and CypD in the mitochondria are critical for the QC-mediated induction of cell death in hESCs. PMID- 29029405 TI - SOX7 promotes the maintenance and proliferation of B cell precursor acute lymphoblastic cells. AB - B cell precursor acute lymphoblastic leukemia (BCP-ALL) is the most frequent type of cancer in children. Despite progresses in curative treatment, intensive chemotherapy regimens still cause life threatening complications. A better understanding of the molecular mechanisms underlying the emergence and maintenance of BCP-ALL is fundamental for the development of novel therapies. Here, we establish that SOX7 is frequently and specifically expressed in BCP-ALL and that the expression of this transcription factor does not correlate with any specific cytogenetic abnormalities. Using human leukemia model systems, we establish that the down-regulation of SOX7 in BCP-ALL causes a significant decrease in proliferation and clonogenicity in vitro that correlates with a delay in leukemia initiation and burden in vivo. Overall, these results identify a novel and important functional role for the transcription factor SOX7 in promoting the maintenance of BCP-ALL. PMID- 29029406 TI - Lyn mediates FIP1L1-PDGFRA signal pathway facilitating IL-5RA intracellular signal through FIP1L1-PDGFRA/JAK2/Lyn/Akt network complex in CEL. AB - The Fip1-like1 (FIP1L1)-platelet-derived growth factor receptor alpha (PDGFRA) (F/P) oncogene can cause chronic eosinophilic leukemia (CEL), but requires IL-5 cytokine participation. In this study, we investigate the mechanism of F/P in collaboration with IL-5 in CEL. The results showed that Lyn, a key effector in the IL-5-motivated eosinophil production, is extensively activated in F/P positive CEL cells. Lyn can associate and phosphorylate IL-5 receptor alpha (IL 5RA) in F/P-positive cells. Moreover, the activation of Lyn and IL-5R kinase were strengthened when the cells were stimulated by IL-5. Lyn inhibition in F/P positive CEL cells attenuated cellular proliferation, induced apoptosis, and blocked cell migration and major basic protein (MBP) release. We identified the FIP1L1-PDGFRA/JAK2/Lyn/Akt complex in the F/P-expressing cells which can be disrupted by dual inhibition of JAK2 and Lyn, repressing cell proliferation in both EOL-1(F/P-positive human eosinophilic cell line) and imatinib-resistance (IR) cells. Altogether, our data demonstrate that Lyn is a vital downstream kinase activated by F/P converged with IL-5 signals in CEL cells. Lyn activate and expand IL-5RA intracellular signaling through FIP1L1-PDGFRA/JAK2/Lyn/Akt network complex, provoking eosinophils proliferation and exaggerated activation manifested as CEL. PMID- 29029407 TI - Molecular profiling of colorectal pulmonary metastases and primary tumours: implications for targeted treatment. AB - This study aimed to molecularly characterise colorectal pulmonary metastases (PM) and investigate whether their molecular profiles were concordant with those of the primary tumour. Clinical data and archival formalin fixed paraffin embedded tissue samples were retrospectively collected from patients who underwent >= 1 pulmonary metastasectomies for colorectal cancer between 1997-2012. Primary tumour and metastatic samples were analysed using a targeted capture sequencing panel of 46 cancer-associated genes. The 5-year progression-free and overall survival rates for the 81 patients in this study were 32% (95% CI 22-42%) and 77% (95% CI 66-85%) respectively. Fifty-four patients had samples available from >= 1 PM, and sequencing data were successfully obtained from 33 PM from 24 patients. The most frequently mutated genes were APC (71%), KRAS (58%) and TP53 (46%). Seventy-three percent of the 15 patients with matched primary and PM samples and 6 of the 7 patients (86%) with data from >= 2 PM had concordant molecular profiles. The concordance for KRAS and NRAS was 100%. At our institutions, patients with resectable colorectal PM had a favourable prognosis. RAS mutations were commonly detected in PM and the molecular profiles of colorectal PM were highly concordant with the primary tumour. PMID- 29029408 TI - RNAi targeting Nogo Receptor enhanced survival and proliferation of murine retinal ganglion cells during N-methyl-D-aspartate-induced optic nerve crush. AB - We investigated the effects of lentivirus-mediated RNAi targeting of Nogo Receptor (NgR) on the proliferation and survival of murine retinal ganglion cells (mRGCs) in vitro and in vivo. Cultured mRGCs and C57BL/6 male mice were divided into 4 experimental groups: blank, model [100 MUM N-methyl-D-aspartate (NMDA)], nscRNA (100 MUM NMDA+ nscRNA vectors) and siNgR (100 MUM NMDA+ siNgR vectors). CCK-8 and flow cytometry analyses revealed that silencing NgR enhanced proliferation, cell cycling and survival of NMDA-treated mRGCs. H&E staining showed that NgR silencing enhanced mRGC cell density and reduced angiogenesis in NMDA-treated retinal tissues. TUNEL assays showed that mRGC apoptosis was significantly diminished by NgR silencing in NMDA-treated retinal tissues. Western blotting and qRT-PCR analysis in NMDA-treated mRGCs and murine retinal tissues revealed that NgR silencing resulted in downregulation of RhoA signaling (RhoA and ROCK2). Western blotting showed that levels of activated Bax and cleaved caspase 3 were decreased, while Bcl-2 and pro-caspase 3 were increased in NMDA-treated mRGCs and murine retinal tissues, which corroborated the decreased apoptosis. These findings indicate that NgR gene silencing increases proliferation and survival of mRGCs in NMDA-treated murine retinas, which suggests a potential for therapeutic application to preventing optic nerve damage. PMID- 29029409 TI - Metabolic characterization and pathway analysis of berberine protects against prostate cancer. AB - Recent explosion of biological data brings a great challenge for the traditional methods. With increasing scale of large data sets, much advanced tools are required for the depth interpretation problems. As a rapid-developing technology, metabolomics can provide a useful method to discover the pathogenesis of diseases. This study was explored the dynamic changes of metabolic profiling in cells model and Balb/C nude-mouse model of prostate cancer, to clarify the therapeutic mechanism of berberine, as a case study. Here, we report the findings of comprehensive metabolomic investigation of berberine on prostate cancer by high-throughput ultra performance liquid chromatography-mass spectrometry coupled with pattern recognition methods and network pathway analysis. A total of 30 metabolite biomarkers in blood and 14 metabolites in prostate cancer cell were found from large-scale biological data sets (serum and cell metabolome), respectively. We have constructed a comprehensive metabolic characterization network of berberine to protect against prostate cancer. Furthermore, the results showed that berberine could provide satisfactory effects on prostate cancer via regulating the perturbed pathway. Overall, these findings illustrated the power of the ultra performance liquid chromatography-mass spectrometry with the pattern recognition analysis for large-scale biological data sets may be promising to yield a valuable tool that insight into the drug action mechanisms and drug discovery as well as help guide testable predictions. PMID- 29029410 TI - Efficient intracellular delivery makes cancer cells sensitive to nanoemulsive chemodrugs. AB - Evodiamine has been documented to possess activities in numerous cancer cells. Our preliminary study showed that A549 cells were insensitive to evodiamine. In this paper, A549 cells are sensitive to nanoemulsive evodiamine (EVONE) through an efficient intracellular and systematic delivery. EVONE entered tumor cells by energy-dependent and mainly through clathrin-mediated endocytosis. EVONE exerted a higher cytotoxicity in a dose- and time-dependent manner. The enhanced induction of cell cycle arrest was ascribed to the down-regulation of cyclin B and cyclin dependent kinase 1, while the enhanced induction of apoptosis was due to the activation of caspase -3, -8 and -9 and the decreased B-cell lymphoma 2/ assaciated X protein ratio. Furthermore, the in vivo kinetic, bioavailability and in situ absorption characteristics of EVONE were much better than those of free evodiamine. The cancer cells insensitive to free chemodrugs became sensitive to nanoemulsive chemodrugs. PMID- 29029411 TI - Nestin expression involves invasiveness of esophageal carcinoma and its downregulation enhances paclitaxel sensitivity to esophageal carcinoma cell apoptosis. AB - Paclitaxel has been generally used to treat primary and metastatic esophageal carcinoma. It has been shown that nestin is highly expressed in esophageal carcinoma and that there is a strong association of nestin expression with poor prognosis in esophageal carcinoma patients. In this study, using immunohistochemistry, in situ hybridization and Western blotting we demonstrated that nestin was overexpressed in the invasive esophageal carcinoma. To further elucidate whether nestin inhibition could enhance paclitaxel sensitivity to esophageal carcinoma cells, we applied nestin siRNA in esophageal squamous cell carcinoma Eca-109 cells. Flow cytometry and TUNEL staining both showed that combination of paclitaxel treatment and nestin knockdown resulted in greater induction of apoptosis of esophageal carcinoma cells as compared with the cells transfected with control siRNA (also treated with paclitaxel). This study indicates that nestin knockdown enhances chemotherapeutic sensitivity of paclitaxel to esophageal carcinoma, and suggests that silencing of nestin could be a valuble therapeutic approach for enhancing drug sensitivity and thereby improving the treatment outcome of esophageal carcinoma patients. PMID- 29029412 TI - The value of phosphohistone H3 as a proliferation marker for evaluating invasive breast cancers: A comparative study with Ki67. AB - BACKGROUND: Established measurements of proliferation in breast cancer are Ki67 and mitotic-activity-index (MAI), with problems in reproducibility and prognostic accuracy. Phosphohistone H3 (PHH3), a relatively novel IHC marker is specific for mitosis with good reproducibility. We hypothesized that PHH3 would be more reproducible and better represent proliferation than Ki67. RESULTS: PHH3 identified easily-missed mitosis by MAI, as demonstrated by upgrading M grade at diagnosis (n = 29/218, evenly distributed). PHH3 accurately found hot-spots, supported by mitotic count agreement between low-power and 10HPFs (R2 = 0.999; P = 0.001). PHH3 was more reproducible than Ki67, measured by five-rater inter class correlation coefficient (0.904 > 0.712; P = 0.008). Finally, despite a relatively short follow-up (median 46 months; 7 recurrences) PHH3 was the only variable correlated with disease-free survival (P = 0.043), while all other conventional clinicopathologic variables, including Ki67 (P = 0.356), did not. MATERIALS AND METHODS: We compared Ki67 and PHH3 for 218 breast cancer surgical cases diagnosed from 2012 to 2013 at Severance hospital. The most representative invasive breast cancer surgical slides were immunohistochemically stained for Ki67 and PHH3. CONCLUSIONS: Poor reproducibility and inadequate representation of proliferation of Ki67 and MAI may be improved by PHH3, allowing better accuracy in breast cancer diagnostics. PMID- 29029413 TI - Targeting SHP-1-STAT3 signaling: A promising therapeutic approach for the treatment of cholangiocarcinoma. AB - Sorafenib is a multiple kinase inhibitor which targets Raf kinases, VEGFR, and PDGFR and is approved for the treatment of hepatocellular carcinoma (HCC). Previously, we found that p-STAT3 is a major target of SC-43, a sorafenib derivative. In this study, we report that SC-43-induced apoptosis in cholangiocarcinoma (CCA) via a novel mechanism. Three CCA cell lines (HuCCT-1, KKU-100 and CGCCA) were treated with SC-43 to determine their sensitivity to SC 43-induced cell death and apoptosis. We found that SC-43 activated SH2 domain containing phosphatase 1 (SHP-1) activity, leading to p-STAT3 and downstream cyclin B1 and Cdc2 downregulation, which induced G2-M arrest and apoptotic cell death. Importantly, SC-43 augmented SHP-1 activity by direct binding to N-SH2 and relief of its autoinhibition. Deletion of the N-SH2 domain (dN1) or point mutation (D61A) of SHP-1 counteracted the effect of SC-43-induced SHP-1 phosphatase activation and antiproliferation ability in CCA cells. In vivo assay revealed that SC-43 exhibited xenograft tumor growth inhibition, p-STAT3 reduction and SHP-1 activity elevation. In conclusion, SC-43 induced apoptosis in CCA cells through the SHP-1/STAT3 signaling pathway. PMID- 29029415 TI - Oxymatrine suppresses the growth and invasion of MG63 cells by up-regulating PTEN and promoting its nuclear translocation. AB - Studies demonstrated that reduced PTEN levels are associated with poor prognoses of osteosarcoma. The nuclear localization of PTEN is important for its tumor suppressive function. Equally importantly, PTEN is the most significant negative regulator of PI3K/Akt signaling cascade, the constitutively activated pathway in osteosarcoma. In our study MG63 cells and U2OS cells were treated with the indicated concentrations of oxymatrine, in order to find the inhibition of oxymatrine to cells. We found the functions of oxymatrine on proliferation, apoptosis and invasion in cells. Oxymatrine could increase the expression of PTEN and promote its nuclear translocation in MG63 cells. In addition, oxymatrine could induce cell cycle arrest in G1 phase and apoptosis of MG63 cells. The migration and invasion potential of MG63 cells were also markedly inhibited by oxymatrine. Oxymatrine could suppress the growth and invasion of MG63 human osteosarcoma cells by up-regulating PTEN and promoting its nuclear translocation and inhibiting PI3K/Akt signaling pathway. PMID- 29029414 TI - Targeting ADAM17 inhibits human colorectal adenocarcinoma progression and tumor initiating cell frequency. AB - ADAM17 (a disintegrin and metalloproteinase 17)/TACE (TNFalpha converting enzyme) has emerged as a potential therapeutic target in colorectal cancer (CRC) and other cancers, due in part to its role in regulating various tumor cell surface proteins and growth factors and cytokines in the tumor microenvironment. The emergence of MEDI3622, a highly potent and specific antibody-based ADAM17 inhibitor, has allowed testing of the concept that targeting ADAM17 may be an important new therapeutic approach for CRC patients. We demonstrate that MEDI3622 is highly efficacious on tumor growth in multiple human CRC PDX models, resulting in improved survival of animals bearing tumor xenografts. MEDI3622 was further found to impact Notch pathway activity and tumor-initiating cells. The promising preclinical activity seen here supports further clinical investigation of this treatment approach to improve therapeutic outcome for patients diagnosed with metastatic CRC, including patients with KRAS-mutant tumors for whom other therapeutic options are currently limited. PMID- 29029416 TI - Detection of activating and acquired resistant mutation in plasma from EGFR mutated NSCLC patients by peptide nucleic acid (PNA) clamping-assisted fluorescence melting curve analysis. AB - This study was designed to prospectively examine whether peptide nucleic acid clamping-assisted fluorescence melting curve analysis (PANAMutyperTM) is feasible for the detection of activating and acquired resistant epidermal growth factor receptor (EGFR) mutation in plasma. Patients with non-small cell lung cancer harboring activating EGFR mutations who were scheduled to undergo EGFR-tyrosine kinase inhibitors (EGFR-TKIs) were enrolled between September 2011 and March 2015. A total of 102 patients with EGFR-mutated lung cancer were enrolled, 53 had available plasma samples at disease progression, and 28 underwent serial plasma sampling during EGFR-TKI treatment. EGFR-TKI-sensitizing and T790M mutations were detected in the plasma of 68.6% (70/102) at baseline and 30.2% (16/53) at disease progression, respectively. The concordance rates for matched tissue and plasma samples were 80.4% and 90.2% for E19del and L858R mutations at baseline and 56.3% for T790M mutation at disease progression. The sustained presence of plasma EGFR mutations four weeks after EGFR-TKI predicted a poor objective response rate (30.0% vs. 87.5%, P = 0.025), as well as worse progression-free survival (hazard ratio [HR], 4.381) and overall survival (HR, 5.475). Longitudinal analysis could detect T790M mutations earlier than disease progression based on imaging study (median time from appearance of T790M in plasma samples to progression at imaging scan, 103 days). In conclusion, PANAMutyperTM is reliable for detecting activating and acquired resistant EGFR mutation in plasma, and predicts responses to EGFR-TKI via longitudinal monitoring of EGFR mutation during treatment. PMID- 29029417 TI - Anti-tumor activity of anthrax toxin variants that form a functional translocation pore by intermolecular complementation. AB - Anthrax lethal toxin is a typical A-B type protein toxin secreted by Bacillus anthracis. Lethal factor (LF) is the catalytic A-subunit, a metalloprotease having MEKs as targets. LF relies on the cell-binding B-subunit, protective antigen (PA), to gain entry into the cytosol of target cells. PA binds to cell surface toxin receptors and is activated by furin protease to form an LF-binding competent oligomer-PA pre-pore, which converts to a functional protein-conductive pore in the acidic endocytic vesicles, allowing translocation of LF into the cytosol. During PA pre-pore-to-pore conversion, the intermolecular salt bridge interactions between Lys397 and Asp426 on adjacent PA protomers play a critical role in positioning neighboring luminal Phe427 residues to form the Phe-clamp, an essential element of the PA functional pore. This essential intermolecular interaction affords the opportunity to create pairs of PA variants that depend on intermolecular complementation to form a functional pore. We have previously generated PA variants with furin-cleavage site replaced by substrate sequences of tumor-associated proteases, such as urokinase or MMPs. Here we show that PA-U2 K397Q, a urokinase-activated PA variant with Lys397 residue replaced by glutamine, and PA-L1-D426K, a MMP-activated PA variant with Asp426 changed to lysine, do not form functional pores both in vitro or in vivo unless they are used together. Further, the mixture of PA-U2-K397Q and PA-L1-D426K displayed potent anti-tumor activity in the presence of LF. Thus, PA-U2-K397Q and PA-L1 D426K form a novel intermolecular complementation system with toxin activation relying on the presence of two distinct tumor-associated proteases, i.e., urokinase and MMPs. PMID- 29029418 TI - Identification of circulating microRNA signatures as potential noninvasive biomarkers for prediction and prognosis of lymph node metastasis in gastric cancer. AB - Circulating microRNAs (miRNAs) are emerging as novel noninvasive biomarkers for prediction of lymph node metastasis (LNM) in cancer. The aim of this study was to identify serum miRNA signatures for prediction and prognosis of LNM in gastric cancer (GC). MiSeq sequencing was performed for an initial screening of serum miRNAs in 10 GC patients with LNM, 10 patients without LNM and 10 healthy controls. Reverse transcription quantitative real-time PCR was applied to confirm concentration of candidate miRNAs using a training cohort (n = 279) and a validation cohort (n = 180). We identified a four-miRNA panel (miR-501-3p, miR 143-3p, miR-451a, miR-146a) by multivariate logistic regression model that provided high predictive accuracy for LNM with an area under the receiver operating characteristic curve (AUC) of 0.891 (95% CI, 0.840 to 0.930) in training set. Prospective evaluation of this panel revealed an AUC of 0.822 (95% CI, 0.758 to 0.875, specificity = 87.78%, sensitivity = 63.33%) in validation set. Moreover, Kaplan-Meier analysis showed that LNM patients with low miR-451a and miR-146a levels had worse overall survival (OS) (p < 0.05). In Cox regression analysis, miR-451a was independently associated with OS of LNM (p = 0.028). Our results suggested that use of serum miRNAs seems promising in estimating the probability GC patients harbor LNM and providing prognostic information for LNM. PMID- 29029419 TI - CD44 regulates prostate cancer proliferation, invasion and migration via PDK1 and PFKFB4. AB - Our recent studies have shown that CD44, a cell-surface protein with functions in many biologic processes, involved in glucose metabolism of prostate cancer cells. However, the molecular mechanisms of the regulation need to be further elucidated. In present study, LNCaP cells infected with lentivirus vector overexpressing CD44. The expression levels of key enzymes in glucose metabolism known as PDK1 and PFKFB4 were determined using QRT-PCR and western blot. PDK1 and PFKFB4 in LNCaP and PC3 cells were knocked down with shRNA respectively, and then cell proliferation, invasion and cell migration assay were performed. We found that overexpression of CD44 increased expression levels of PDK1 and PFKFB4 in LNCaP cells. Silencing of PDK1 and PFKFB4 could decrease cell proliferation, inhibit invasion and migration ability of prostate cancer cells. In addition, CD44 inhibitor could decrease glucose consumption and increase ROS levels of PC-3 cells significantly, as well as sensitize PC-3 cells to docetaxel. Taken together, CD44 could modulate aggressive phenotype of prostate cancer cells, by regulation of the expression of PDK1 and PFKFB4. CD44 may be a novel potential therapeutic target. PMID- 29029420 TI - Generation and evaluation of antibody agents for molecular imaging of CD44v6 expressing cancers. AB - AIM: The aim of this study was to generate and characterize scFv antibodies directed to human CD44v6, as well as to radiolabel and evaluate top candidates in vitro and in vivo for their potential use in CD44v6-targeted molecular imaging in cancer patients. MATERIALS AND METHODS: Phage display selections were used to isolate CD44v6-specific scFvs. A chain shuffling strategy was employed for affinity maturation based on a set of CD44v6-specific first-generation clones. Two second-generation scFv clones were then chosen for labeling with 111In or 125I and assessed for CD44v6-specific binding on cultured tumor cells. In vivo uptake and distribution was evaluated in tumor-bearing mice using a dual tumor model. Finally, a proof-of-concept small animal PET-CT study was performed on one of the candidates labeled with 124I. RESULTS: Two affinity-matured clones, CD44v6 scFv-A11 and CD44v6-scFv-H12, displayed promising binding kinetics. Seven out of eight radiolabeled conjugates demonstrated CD44v6-specific binding. In vivo studies on selected candidates demonstrated very advantageous tumor-to-organ ratios, in particular for iodinated conjugates, where 125I-labeled scFvs exhibited favorable kinetics and tumor-to-blood ratios above five already at 24 hours p.i.. The small animal PET-CT study using 124I-labeled CD44v6-scFv-H12 was in line with the biodistribution data, clearly visualizing the high CD44v6 expressing tumor. CONCLUSION: The single chain fragments, CD44v6-scFv-A11 and CD44v6-scFv-H12 specifically bind to CD44v6, and the radiolabeled counterparts provide high tumor-to-blood ratios and fast clearance from organs and blood. We conclude that radioiodinated CD44v6-scFv-A11 and CD44v6-scFv-H12 possess features highly suitable for stringent molecular imaging. PMID- 29029421 TI - Prognostic value of supraclavicular nodes and upper abdominal nodes metastasis after definitive chemoradiotherapy for patients with thoracic esophageal squamous cell carcinoma. AB - The purpose of this study is to assess the prognostic value of supraclavicular nodes, left gastric nodes, celiac nodes and common hepatic nodes metastasis in esophageal squamous cell carcinoma (ESCC) treated with definitive radiotherapy. A total of 293 ESCC patients treated with radiotherapy or chemoradiotherapy entered the study. The results showed that the presence of supraclavicular nodes (chi2 = 0.075, P = 0.785) and left gastric nodes (chi2 = 3.603, P = 0.058) metastasis had no significant influence on survival, while celiac nodes (chi2 = 33.775, P < 0.001) and common hepatic nodes (chi2 = 42.350, P < 0.001) metastasis were associated with significantly shorter survival, regardless of the sites of primary tumor. Multivariate analysis showed that celiac nodes (HR: 0.457, 95% CI: 0.256-0.816; P = 0.008) and common hepatic nodes (HR: 0.241, 95% CI: 0.092-0.630; P = 0.004) metastasis were independently adverse indicator of survival in upper ESCC. While in the middle and lower ESCC, only the common hepatic nodes (middle ESCC: HR: 0.345, 95% CI: 0.161-0.738, P = 0.006; lower ESCC: HR: 0.377, 95% CI: 0.160-0.890, P = 0.026) metastasis was an independently adverse indicator of survival. In conclusion, our study demonstrated that in ESCC treated with definitive radiotherapy, both of celiac nodes and common hepatic nodes metastasis were adverse indicator of survival in upper ESCC, and common hepatic nodes metastasis were adverse indicator of survival in middle and lower ESCC. Supraclavicular nodes an left gastric nodes metastasis is not associated with patients survival in ESCC. PMID- 29029422 TI - Serine 207 phosphorylated lysyl-tRNA synthetase predicts disease-free survival of non-small-cell lung carcinoma. AB - It has been shown that various tRNA synthetases exhibit non-canonical activities unrelated to their original role in translation. We have previously described a signal transduction pathway in which serine 207 phosphorylated lysyl-tRNA synthetase (P-s207 LysRS) is released from the cytoplasmic multi-tRNA synthetase complex (MSC) into the nucleus, where it activates the transcription factor MITF in stimulated cultured mast cells and cardiomyocytes. Here we describe a similar transformation of LysRS due to EGFR signaling activation in human lung cancer. Our data shows that activation of the EGFR results in phosphorylation of LysRS at position serine 207, its release from the MSC and translocation to the nucleus. We then generated a P-s207 LysRS rabbit polyclonalantibody and tested 242 tissue micro-array samples derived from non-small-cell lung cancer patients. Highly positive nuclear staining for P-s207 LysRS was noted in patients with EGFR mutations as compared to WT EGFR patients and was associated with improved mean disease-free survival (DFS). In addition, patients with mutated EGFR and negative lymph node metastases had better DFS when P-s207 LysRS was present in the nucleus. The data presented strongly suggests functional and prognostic significance of P-s207 LysRS in non-small-cell lung cancer. PMID- 29029423 TI - DISC1 overexpression promotes non-small cell lung cancer cell proliferation. AB - Neuropsychiatric disorder-associated disrupted-in-schizophrenia-1 (DISC1) activates Wnt/beta-catenin signaling by inhibiting glycogen synthase kinase 3 beta (GSK3beta) phosphorylation, and may promote neural progenitor cell and pancreatic beta-cell proliferation. The present study found that DISC1 promotes non-small cell lung cancer (NSCLC) cell growth. Western blotting and immunohistochemistry analyses showed that DISC1 was highly expressed in NSCLC cell lines and patient tissues. DISC1 expression was negatively associated with phosphorylated (p-) GSK3beta, but positively correlated with a more invasive tumor phenotype and predicted poor NSCLC patient prognosis. siRNA-mediated DISC1 silencing increased p-GSK3beta expression and decreased expression of beta catenin and Cyclin D1, while DISC1 upregulation produced the opposite results. DISC1 knockdown also reduced NSCLC cell proliferation rates in vitro. These results suggest that DISC1 promotes NSCLC growth, likely through GSK3beta/beta catenin signaling, and that DISC1 may function as an oncogene and novel anti NSCLC therapeutic target. PMID- 29029424 TI - microRNA-22 can regulate expression of the long non-coding RNA MEG3 in acute myeloid leukemia. AB - AIM: Acute myeloid leukemia (AML) is the most common blood tumor with poor prognosis. At present, the research found that the pathogenesis of AML is related to many factors, such as recurrent somatic mutations and gene expression and epigenetic changes, however, the molecular mechanism of AML is still unclear. Long non-coding RNA MEG3 is a newly found tumor suppressor and plays a very important role in the regulation of a variety of tumor formation and progression. Studies found that the MEG3 expression was significantly decreased in AML. However, to date, it is not clear the cause of its abnormal expression. Therefore, the molecular mechanism of AML is urgently needed to study the molecular mechanism of AML. METHODS: The different expression level of MEG3, TET2, miR-22-3p, miR-22-5p in AML was detected by real-time quantification PCR. MEG3, TET2, miR-22-3p, miR-22-3p expression cell pools in K562 cells was used to interfering and TET2, MEG3 TET2, relations with miR-22-3p, miR-22-5p. The effect of AML cell on proliferation was evaluated by TET2 lower expression. RESULTS: 1. The lower expression of MEG3 and TET2 in AML cell lines was detected by RT-qPCR. 2. The stable MEG3, TET2 overexpression cell pools in K562 cells was successful established. 3. After transfection, MTT assay revealed that cell growth was significantly increased in AML cell lines transfected with TET2 compared with controls. CONCLUSIONS: Our findings suggested that MEG3 is significantly down regulated in AML cell lines. PMID- 29029425 TI - MiR-346 suppresses cell proliferation through SMYD3 dependent approach in hepatocellular carcinoma. AB - BACKGROUND & AIMS: The miRNAs are demonstrated to be involved in the carcinogenesis of hepatocellular carcinoma (HCC) and some exhibit potential value for oncotherapy. This study was designed to explore the role of miR-346 in the pathogenesis of hepatocellular carcinoma. METHODS: High throughput screening was employed following with Real time-PCR to investigate the candidate miRNAs. 5 ethynyl-2-deoxyuridine (EdU) assay, CCK-8, transwell assay, cell cycle assay, luciferase reporter assay, western blot and mice xenotransplantation model were performed in the present study. RESULTS: We found miR-346 was significantly down regulated in the HCC tissues compared with the non-tumor controls and was associated with the tumor size and TNM grade. Additionally, the in vitro and in vivo assays confirmed that miR-346 suppressed the proliferation of HCC. Then, bioinformatic algorithms and luciferase reporter assays proved that miR-346 directly targeted SET and MYND domain containing 3(SMYD3). We also performed the rescue experiments by inhibiting the expression of SMYD3 and found the down regulation of SMYD3 could neutralize the inhibitory effects of miR-346 on HCC. At last, the cox proportional hazards analysis showed that low expression of miR-346 was an an independent prognostic factor for HCC. CONCLUSION: Our findings illuminated miR-346 targeting SMYD3 to inhibit the proliferation of HCC and its down-regulation predicts a poor prognosis. PMID- 29029426 TI - A20 functions as mediator in TNFalpha-induced injury of human umbilical vein endothelial cells through TAK1-dependent MAPK/eNOS pathway. AB - A20, a negative regulator of nuclear factor kappaB signaling, has been shown to attenuate atherosclerotic events. Transforming growth factor beta-activated kinase 1 (TAK1) plays a critical role in TNFalpha-induced atherosclerosis via endothelial nitric oxide (NO) synthase (eNOS) uncoupling and NO reduction. In the study, we investigated the hypothesis that A20 protected endothelial cell injury induced by TNFalpha through modulating eNOS activity and TAK1 signalling. Human umbilical vein endothelial cells (HUVECs) were stimulated by TNFalpha. The impact of A20 on cell apoptosis, eNOS expression and NO production and related TAK1 pathway were detected. Both eNOS and NO production were remarkably reduced. TAK1, p38 MAPK phosphorylation and HUVECs apoptosis were enhanced after TNFalpha stimulation for 2 hrs. Inhibition of A20 significantly activated TAK1, p38 MAPK phosphorylation, and cell apoptosis, but blocked eNOS expression and NO production. Furthermore, p38 MAPK expression was suppressed by A20 over expression, but re-enhanced by inhibiting A20 or activation of TAK1. Furtherly, TNFalpha-induced suppression of eNOS and NO production were largely prevented by silencing p38 MAPK. Collectively, our results suggested that A20-mediated TAK1 inactivation suppresses p38 MAPK and regulated MAPK/eNOS pathway, which contributes to endothelial cell survival and function preservation. PMID- 29029427 TI - Environment and bladder cancer: molecular analysis by interaction networks. AB - Bladder cancer (BC) is the 9th most common cancer worldwide, and the 6th most common cancer in men. Its development is linked to chronic inflammation, genetic susceptibility, smoking, occupational exposures and environmental pollutants. Aim of this work was to identify a sub-network of genes/proteins modulated by environmental or arsenic exposure in BC by computational network approaches. Our studies evidenced the presence of HUB nodes both in "BC and environment" and "BC and arsenicals" networks. These HUB nodes resulted to be correlated to circadian genes and targeted by some miRNAs already reported as involved in BC, thus suggesting how they play an important role in BC development due to environmental or arsenic exposure. Through data-mining analysis related to putative effect of the identified HUB nodes on survival we identified genes/proteins and their mutations on which it will be useful to focus further experimental studies related to the evaluation of their expression in biological matrices and to their utility as biomarkers of BC development. PMID- 29029428 TI - Long non-coding RNA TUG1 promotes cervical cancer progression by regulating the miR-138-5p-SIRT1 axis. AB - Increasing evidences showed that long non-coding RNAs (lncRNAs) play vital roles in tumor progression. Recent studies indicated that lncRNA TUG1 was upregulated and promoted tumor processes in several cancers. However, the expression and underlying mechanism of TUG1 in cervical cancer remain unclear. In the present study, we found that TUG1 expression was upregulated in cervical cancer tissues and correlated with advanced clinical features and poor overall survival. TUG1 knockdown suppressed cervical cancer cell growth and metastasis in vitro and tumor growth in vivo. In addition, our results indicated that TUG1 could act as an endogenous sponge by directly binding to miR-138-5p and suppressed miR-138-5p expression. Furthermore, we found that TUG1 could reverse the inhibitory effect of miR-138-5p on cervical cancer cells processes, which might be involved in the activation of SIRT1, a target gene of miR-138-5p, and activation of Wnt/beta catenin signaling pathway. Taken together, we elucidated that TUG1 might promote cervical cancer malignant progression via miR-138-5p-SIRT1-Wnt/beta-catenin signaling pathway axis. PMID- 29029429 TI - Twist1 is highly expressed in cancer-associated fibroblasts of esophageal squamous cell carcinoma with a prognostic significance. AB - Cancer-associated fibroblasts (CAFs) play important roles in cancer progression. Twist1 was recently reported to be a key regulator of CAFs in gastric cancer, but its role in other types of cancer remains unclear, especially for esophageal squamous cell carcinoma (ESCC). We assessed the Twist1 expression on stromal fibroblasts using immunohistochemistry in 169 tissue specimens from ESCC patients, and performed in vitro and in vivo experiments to confirm the role of Twist1 in CAFs of ESCC. And we investigated the biological pathways that are activated in Twist1-high ESCC using The Cancer Genome Atlas (TCGA) data. The expression of Twist1 in stromal fibroblasts was observed in 89.9% of ESCC patients and positively associated with the increased depth of tumor invasion, lymph node metastasis, and advanced clinical stage, and a significant adverse prognostic factor in overall survival. Twist1-expressing stromal fibroblasts also expressed representative CAF markers, and co-localization of Twist1 and CAF markers were confirmed by confocal immunofluorescence imaging. Bioinformatic analysis of mRNA expression data of esophageal cancer from TCGA revealed that gene sets of CAFs were highly enriched in Twist1-high ESCC. Depletion of Twist1 in ex vivo cultured ESCC CAFs induced significant decrease in migration, invasion, colony formation, sphere formation, and contractibility of ESCC cancer cells compared to control CAFs. Furthermore, Twist1-expressing fibroblasts remarkably enhanced the in vivo tumorigenicity of ESCC in a xenograft model. In conclusion, Twist1 could be a novel CAF marker for the prognostic evaluation of ESCC patients as well as a potent therapeutic target for ESCC. PMID- 29029431 TI - Does uneven geographic distribution of urologists effect bladder and prostate cancers mortality? National health insurance data in Korea from 2007-2011. AB - The relationship between distribution of urologists and mortality of bladder and prostate cancers has not been clearly established. The aim of this study was to investigate the relationship between uneven distribution of urologists and urologic cancer specific mortality at country level. Data from the National Health Insurance Service and National Statistical Office in Korea from 2007 to 2011 were analyzed in this ecological study. Univariate and multivariable regression analyses were performed to determine risk factors for age standardized mortality rates (ASMR) of bladder and prostate cancers. Linear regression analysis showed a markedly (p < 0.001) uneven distribution of urologists between metropolitan and non-metropolitan areas. There was no significant difference in cancer specific ASMRs for either bladder cancer or prostate cancer. Univariate analysis after adjusting for time showed that country area, urologist density, and income were significant factors affecting bladder cancer incidence (p < 0.001, p = 0.013, and p < 0.001, respectively). It also showed that the number of training hospitals was a significant factor for prostate cancer incidence (p = 0.002). Although country area showed borderline significance (p = 0.056) for ASMR of bladder cancer, urologist density was not related to ASMR of bladder cancer or prostate cancer. Although there was a marked difference in urologist density between metropolitan and non-metropolitan areas for these years analyzed, mortality rates of bladder and prostate cancers were not significantly affected by country area or urologist density. PMID- 29029430 TI - Methylomics of nitroxidative stress on precancerous cells reveals DNA methylation alteration at the transition from in situ to invasive cervical cancer. AB - Epigenetic dysregulation is important in cervical cancer development, but the underlying mechanism is largely unknown. Increasing evidence indicates that DNA methylation is sensitive to changes in microenvironmental factors, such as nitric oxide (NO) in the chronic inflammatory cervix. However, the epigenomic effects of NO in cancer have not been investigated. In this study, we explored the methylomic effects of nitroxidative stress in HPV-immortalized precancerous cells. Chronic NO exposure promoted the acquisition of malignant phenotypes such as cell growth, migration, invasion, and anchorage-independent growth. Epigenetic analysis confirmed hypermethylation of PTPRR. Whole-genome methylation analysis showed BOLA2B, FGF8, HSPA6, LYPD2, and SHE were hypermethylated in cells. The hypermethylation BOLA2B, FGF8, HSPA6, and SHE was confirmed in cervical scrapings from invasive cancer, but not in CIN3/CIS, CIN2 and CIN1 (p=0.019, 0.023, 0.023 and 0.027 respectively), suggesting the role in the transition from in situ to invasive process. Our results reveal that nitroxidative stress causes epigenetic changes in HPV-infected cells. Investigation of these methylation changes in persistent HPV infection may help identify new biomarkers of DNA methylation for cervical cancer screening, especially for precancerous lesions. PMID- 29029432 TI - The involvement of Nrf2 in the protective effects of (-)-Epigallocatechin-3 gallate (EGCG) on NaAsO2-induced hepatotoxicity. AB - Arsenic exposure produces hepatotoxicity. The common mechanism determining its toxicity is the generation of oxidative stress. Oxidative stress induced by arsenic leads to the activation of nuclear factor erythroid 2-related factor 2 (Nrf2) pathway. (-)-Epigallocatechin-3-gallate (EGCG) possesses a potent antioxidant capacity and exhibits extensive pharmacological activities. This study aims to evaluate effects of EGCG on arsenic-induced hepatotoxicity and activation of Nrf2 pathway. Plasma activities of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, and lactate dehydrogenase were measured; Histological analyses were conducted to observe morphological changes; Biochemical indexes such as oxidative stress (Catalase (CAT), malonyldialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH), reactive oxygen species (ROS)), Nrf2 signaling related genes (Nrf2, Nqo1, and Ho-1) were assessed. The results showed that EGCG inhibited arsenic-induced hepatic pathological damage, liver ROS level and MDA level. Arsenic decreases the antioxidant enzymes SOD, GPX, and CAT activity and the decrease was inhibited by treatment of EGCG. Furthermore, EGCG attenuated the retention of arsenic in liver tissues and improved the expressions of Nrf2 signaling related genes (Nrf2, Nqo1, and Ho-1). These findings provide evidences that EGCG may be useful for reducing hepatotoxicity associated with oxidative stress by the activation of Nrf2 signaling pathway. Our findings suggest a possible mechanism of antioxidant EGCG in preventing hepatotoxicity, which implicate that EGCG may be a potential treatment for arsenicosis therapy. PMID- 29029433 TI - H2O2 attenuates IGF-1R tyrosine phosphorylation and its survival signaling properties in neuronal cells via NR2B containing NMDA receptor. AB - Impairment of insulin-like growth factor I (IGF-I) signaling plays an important role in the development of neurodegeneration. In the present study, we investigated the effect of H2O2 on the survival signaling of IGF-1 and its underlying mechanisms in human neuronal cells SH-SY5Y. Our results showed that IGF-1 promoted cell survival and stimulated phosphorylation of IGF-1R as well as its downstream targets like AKT and ERK1/2 in these cells. Meanwhile, these effects of IGF-1 were abolished by H2O2 at 200MUM concentration which did not cause any significant toxicity to cells itself in our experiments. Moreover, studies using various glutamate receptor subtype antagonists displayed that N methyl-D -aspartate (NMDA) receptor antagonist dizocilpine maleate (MK-801) blocked the effects of H2O2, whereas other glutamate receptor subtype antagonists, such as non-NMDA receptor antagonist 6,7-dinitroquinoxaline-2,3 dione (DNQX), metabolic glutamate receptor antagonists LY341495 and CPCCOEt, had no effect. Further studies revealed that NR2B-containing NMDARs are responsible for these effects as its effects were blocked by pharmacological inhibitor Ro25 698 or specific siRNA for NR2B, but not NR2A. Finally, our data also showed that Ca2+ influx contributes to the effects of H2O2. Similar results were obtained in primary cultured cortical neurons. Taken together, the results from the present study suggested that H2O2 attenuated IGF-1R tyrosine phosphorylation and its survival signaling properties via NR2B containing NMDA receptors and Ca2+ influx in SH-SY5Y cells. Therefore, NMDAR antagonists, especially NR2B-selective ones, combined with IGF-1 may serve as an alternative therapeutic agent for oxidative stress related neurodegenerative disease. PMID- 29029434 TI - Silencing protein kinase C zeta by microRNA-25-5p activates AMPK signaling and inhibits colorectal cancer cell proliferation. AB - Developing novel strategies against human colorectal cancer (CRC) cells is needed. Activation of AMP-activated protein kinase (AMPK) could possibly inhibit CRC cells. Protein kinase C zeta (PKCzeta) is an AMPK negative regulator. Here we found that PKCzeta expression was significantly elevated in human colon cancer tissues and CRC cells. PKCzeta upregulation was correlated with AMPK in activation and mTOR complex 1 (mTORC1) over-activation. Reversely, PKCzeta shRNA knockdown activated AMPK signaling and inhibited HT-29 cell proliferation. Significantly, downregulation of microRNA-25-5p (miR-25-5p), a PKCzeta-targeting miRNA, could be the cause of PKCzeta upregulation. Exogenous expression of miR-25 5p silenced PKCzeta to activate AMPK signaling, which inhibited HT-29 cell proliferation. In vivo studies showed that HT-29 xenograft growth in mice was inhibited after expressing PKCzeta shRNA or miR-25-5p. Collectively, PKCzeta could be a novel oncogenic protein of human CRC. PKCzeta silence, by targeted shRNA or miR-25-5p expression, activates AMPK and inhibits HT-29 cell proliferation. PMID- 29029435 TI - Anti-SSTR2 peptide based targeted delivery of potent PLGA encapsulated 3,3' diindolylmethane nanoparticles through blood brain barrier prevents glioma progression. AB - Current therapy for Glioblastoma is insufficient because of the presence of blood brain barrier. It limits the transport of essential drugs to the tumor sites. To overcome this limitation we strategized the delivery of an anticancer compound 3,3'-diindolylmethane by encapsulation in poly (lactic-co-glycolic acid) nanoparticles. These nanoparticles were tagged with a novel peptide against somatostatin receptor 2 (SSTR2), a potential target in glioma. The nanoformulation (27-87nm) had loading and encapsulation efficiency of 7.2% and 70% respectively. It was successfully internalized inside the glioma cells resulting in apoptosis. Furthermore, an in vivo bio-distribution study revealed the selective accumulation of the nanoformulation into rat brain tumor sites by crossing the blood brain barrier. This resulted in abrogation of epidermal growth factor receptor pathway activation in glioma cells. Our novel nanopreparation therefore shows great promise to serve as a template for targeted delivery of other therapeutics in treating GBM. PMID- 29029436 TI - XIST/miR-139 axis regulates bleomycin (BLM)-induced extracellular matrix (ECM) and pulmonary fibrosis through beta-catenin. AB - Pulmonary fibrosis (PF), characterized by the destruction of lung tissue architecture and the abnormal deposition of extracellular matrix (ECM) proteins, currently has no satisfactory treatment. In the present study, we investigated the hypothesis that XIST play a promotive role in bleomycin (BLM)-induced ECM and pulmonary fibrosis; XIST exerts its effect through miR-139 regulation. XIST expression was upregulated in lung tissues derived from BLM-induced mouse model of PF, and was positively correlated with beta-catenin and ECM protein levels, respectively. LV-sh-XIST-induced XIST knockdown led to decreased PF, reduced beta catenin and ECM protein levels in lung tissues. XIST knockdown suppressed the proliferation of IMR-90 (human fibroblast) and murine lung fibroblasts (MLFCs) and ECM protein expression. Moreover, miR-139 could directly bind to XIST and the 3'UTR of beta-catenin; XIST competed with beta-catenin for miR-139 binding both in IMR-90 and MLFCs. In MLFCs, miR-139 inversely regulated XIST, and could partially reverse the effect of XIST on beta-catenin and ECM proteins. In lung tissues of PF mice, miR-139 expression was downregulated, whereas beta-catenin expression was upregulated. In conclusion, XIST exerts positive effects on BLM induced PF through inhibiting miR-139 to promote human/mouse fibroblast proliferation and ECM proteins. PMID- 29029437 TI - Long non-coding RNA UBE2CP3 promotes tumor metastasis by inducing epithelial mesenchymal transition in hepatocellular carcinoma. AB - Hepatocellular carcinoma (HCC) is a highly aggressive, solid malignancy that has a poor prognosis. Long non-coding RNAs (lncRNAs) have been found to be dysregulated in various cancers, including HCC. However, the molecular mechanism involving lncRNAs in HCC remains largely unknown. In this study, lncRNAs differentially expressed between HCC and corresponding non-cancerous tissue were identified by microarray analysis. A specific differentially expressed lncRNA UBE2CP3 (ubiquitin conjugating enzyme E2 C pseudogene 3) was identified. LncRNA UBE2CP3 was frequently up-regulated in HCC samples as assessed by quantitative real-time polymerase chain reaction (qRT-PCR) and in situ hybridization (ISH) experiments. Clinical data showed that high levels of lncRNA UBE2CP3 were correlated with poor prognosis in HCC patients. Functional studies demonstrated that over-expression of lncRNA UBE2CP3 promoted cell invasion and migration in vitro and in vivo. Mechanistically, enhanced expression of lncRNA UBE2CP3 increased the expression of Snail1 and N-cadherin, but decreased the expression of E-cadherin, thus promoting the process of epithelial to mesenchymal transition (EMT) and finally inducing cell invasion and migration. Furthermore, serum levels of lncRNA UBE2CP3 were increased in HCC patients and decreased after surgery. Our results suggest that lncRNA UBE2CP3 promotes the metastasis of HCC and that serum lncRNA UBE2CP3 may be a new biomarker for the diagnosis of HCC. PMID- 29029438 TI - Lipocalin 2 regulates intestine bacterial survival by interplaying with siderophore in a weaned piglet model of Escherichia coli infection. AB - Iron is an essential nutrient that facilitates cell proliferation and growth, which plays a pivotal role in modulating the battle for survival between mammalian hosts and their pathogens. Pathogenic bacteria secrete siderophores to acquire iron from the host. However, lipocalin 2 (Lcn2), a siderophore-binding antimicrobial protein, binds to siderophores to prevent bacterial uptake of iron, which is critical for the control of systemic infection with Escherichia coli (E. coli). But few studies focus on the anti-infective response of Lcn2 in the intestines by inhibiting bacterial proliferation based on microbial iron metabolism. In this study, we showed that iron was sequestrated within cells in a piglet model of E. coli K88 infection. Siderophores was produced following E. coli K88 infection and siderophore-related genes expression was upregulated in iron-deficiency environment in vitro. Meanwhile, we found that Lcn2 expression was rapidly and robustly induced in jejunum by E. coli K88 infection and could be stimulated by IL-17 and IL-22. Furthermore, both Lcn2 induced in epithelial cells IPEC-1 and added exogenously as a recombinant protein could inhibit the growth of E. coli. We can conclude that Lcn2 is a crucial component of mucosal immune defense against intestinal infection with E. coli K88. PMID- 29029439 TI - MicroRNA-149* suppresses hepatic inflammatory response through antagonizing STAT3 signaling pathway. AB - Chronic inflammation is increasingly recognized as an important component of tumorigenesis and metabolic diseases. The roles of microRNA149* (miRNA149*) in inflammation remain poorly understood. Here, we demonstrate that miR-149* is a suppressor of STAT3-mediated inflammation. MiR-149*-/- mice were generated with CRISPR/CAS9 technique. In a lipopolysaccharide (LPS)-induced inflammation model, miR-149*-/- mice show more severe liver injury and inflammation, compared with wild-type (WT) mice. MiR-149*-/- mice also displayed elevated messenger RNA (mRNA) levels of interleukin (IL)-6, inducible nitric oxide synthase (iNOS), complement C3 (C3) and IL-4 in response to LPS. Then miR-149* agomir administration is largely able to alleviate the LPS-induced some inflammatory gene expression in WT mouse liver. In vitro, miR-149* mimics inhibited expression of STAT3-meidated inflammatory mediators induced by LPS and suppresses the phosphorylation of STAT3 and its transcription activity in HepG2 cells. These findings identify miR-149* as a negative mediator of inflammation that may serve as an attractive therapeutic tool for immune and inflammatory liver diseases. PMID- 29029440 TI - Colorectal carcinoma with osseous metaplasia. AB - Osseous metaplasia (OM) is rarely observed in colorectal cancer (incidence < 0.4% in rectal cancer), where it has a non-specific clinical presentation and unknown pathogenesis. Here, we report three cases of colorectal carcinoma with OM and propose a new hypothesis. All three patients (two males and one female) were Chinese and had different sites of colorectal carcinoma with OM: rectum, sigmoid colon, and appendix. The pathologic diagnoses were serrated adenocarcinoma; moderately to poorly differentiated adenocarcinoma with micropapillary carcinoma and cribriform comedo-type adenocarcinoma; and mucinous adenocarcinoma, respectively. Clinical follow-up showed that one patient died 5 months after surgery, but the others are alive after 68 months and 53 months. Immunohistochemistry revealed that CD44, MAPK, MDM2, OPN and PEDF were expressed by both tumor cells and stromal cells, while P53 was expressed only by tumor cells. KRAS/NRAS/BRAF genotyping revealed different KRAS mutations in each of the three cases, but the NRAS and BRAF exons were all wild-type. These findings suggest OM has no relation with NRAS and BRAF mutation, and it is uncertain whether there is a relationship between ossification and KRAS mutation. OPN, MAPK, MDM2, P53, PEDF and CD44 may act as osteogenic factors in colorectal cancer with OM. PMID- 29029441 TI - Curcumin protects against hepatic ischemia/reperfusion induced injury through inhibiting TLR4/NF-kappaB pathway. AB - The TLR4/NF-kappaB pathway had important roles in hepatic ischemia/reperfusion (I/R) injury. In this study, we reported a protective effect of curcumin against hepatic I/R injury via TLR4/NF-kappaB pathway. Curcumin significantly inhibited cell apoptosis, and decreased levels of LDH and production of TNF-a, IL-1b, and IL-6 in the cell supernatant. In addition, curcumin ameliorated elevated TLR4 and NF-kappaB caused by hypoxia/reoxygenation stimulation in BRL-3A cells. In vivo assays revealed that curcumin reduce levels of ALT and AST, and reversed TLR4/NF kappaB signaling pathway caused by hepatic I/R stimulation in liver tissues. These results suggested that curcumin ameliorates hepatic I/R injury, which may be mediated in part via the TLR4/NF-kappaB signaling pathway. PMID- 29029442 TI - Transcriptomic profiling of long non-coding RNAs in hepatitis B virus-related hepatocellular carcinoma. AB - Long non-coding RNAs (lncRNAs) have been reported to be involved in the development and progression of hepatocellular carcinoma (HCC). However, few studies have focus on the dyregulation and the role of lncRNAs in HBV-related HCC. We performed a comprehensive analysis of lncRNAs expression profile in HBV related HCC tissues samples using deep sequencing. We revealed that a total of 1242 lncRNA transcripts (983 up-regulated and 259 down-regulated) and 1841 mRNA transcripts were significantly differentially expressed in HBV-related HCC patients. Pathway and gene ontology analysis showed that they are involved in the biological process related to HCC development by cis-regulation of co-expressed protein-coding genes. 10 candidate lncRNAs were selected and validated with quantitative real-time PCR analysis. Furthermore, we found that one of most down regulated lncRNAs, n346077, could suppress HCC cells invasion and migration in vitro. Our findings provide an overview of aberrantly expressed lncRNAs in HBV related HCC and will be useful for further functional studies of lncRNAs in HBV related pathogenesis. PMID- 29029443 TI - Quantitative evaluation of Gd-EOB-DTPA uptake in focal liver lesions by using T1 mapping: differences between hepatocellular carcinoma, hepatic focal nodular hyperplasia and cavernous hemangioma. AB - OBJECTIVES: To investigate the difference of T1 relaxation time on Gd-EOB-DTPA enhanced MRI in hepatocellular carcinoma (HCC), hepatic focal nodular hyperplasia (FNH) and cavernous hemangioma of liver (CHL), and to quantitatively evaluate the uptake of Gd-EOB-DTPA in these three focal liver lesions (FLLs). RESULTS: The T1P of CHL was significantly higher than those of HCC and FNH (P < 0.05). Reduction of T1 relaxation time on hepatobiliary phase could be observed in all three types of lesions. There were significant differences of T1P, T1E, T1D and T1D% between FNH, CHL and HCC (P < 0.001). Spearman correlation analysis revealed that T1D% was the best indicator for diagnostic differentiation, with a correlation coefficient of 0.702. Discriminant analysis using three variables (T1P, T1E, and T1D%) showed that the classification accuracy was 88.2%. MATERIALS AND METHODS: 74 patients diagnosed with focal liver lesions underwent Gd-EOB-DTPA-enhanced MRI including T1 mapping were enrolled, consisting of 51 HCCs, 10 FNHs, and 13 CHLs. T1 relaxation times of these lesions were measured on pre-contrast (T1P) and on hepatobiliary phase images at 20 minute after contrast (T1E). The reduction of T1 relaxation time on hepatobiliary (T1D) and the percentage reduction (T1D%) was calculated. The differences of T1P, T1E, T1D and T1D% in these FLLs were analyzed. The usefulness of these parameters for classification of FLLs was evaluated. CONCLUSIONS: Uptake of Gd-EOB-DTPA is different between in HCC, FNH and CHL. These three lesions can be distinguished using T1 mapping. PMID- 29029444 TI - The prohibitin protein complex promotes mitochondrial stabilization and cell survival in hematologic malignancies. AB - Prohibitins (PHB1 and PHB2) have been proposed to play important roles in cancer development and progression, however their oncogenic mechanism of action has not been fully elucidated. Previously, we showed that the PHB1 and PHB2 protein complex is required for mitochondrial homeostasis and survival of normal human lymphocytes. In this study, novel evidence is provided that indicates mitochondrial prohibitins are overexpressed in hematologic tumor cells and promote cell survival under conditions of oxidative stress. Immunofluorescent confocal microscopy revealed both proteins to be primarily confined to mitochondria in primary patient lymphoid and myeloid tumor cells and tumor cell lines, including Kit225 cells. Subsequently, siRNA-mediated knockdown of PHB1 and PHB2 in Kit225 cells significantly enhanced sensitivity to H2O2-induced cell death, suggesting a protective or anti-apoptotic function in hematologic malignancies. Indeed, PHB1 and PHB2 protein levels were significantly higher in tumor cells isolated from leukemia and lymphoma patients compared to PBMCs from healthy donors. These findings suggest that PHB1 and PHB2 are upregulated during tumorigenesis to maintain mitochondrial integrity and therefore may serve as novel biomarkers and molecular targets for therapeutic intervention in certain types of hematologic malignancies. PMID- 29029445 TI - MicroRNA-200c increases radiosensitivity of human cancer cells with activated EGFR-associated signaling. AB - MicroRNA-200c (miR-200c) recently was found to have tumor-suppressive properties by inhibiting the epithelial-mesenchymal transition (EMT) in several cancers. miR 200c also interacts with various cellular signaling molecules and regulates many important signaling pathways. In this study, we investigated the radiosensitizing effect of miR-200c and its mechanism in a panel of human cancer cell lines. Malignant glioma (U251, T98G), breast cancer (MDA-MB-468), and lung carcinoma (A549) cells were transfected with control pre-microRNA, pre-miR-200c, or anti miR-200c. Then, RT-PCR, clonogenic assays, immunoblotting, and immunocytochemisty were performed. To predict the potential targets of miR-200c, microRNA databases were used for bioinformatics analysis. Ectopic overexpression of miR-200c downregulated p-EGFR and p-AKT and increased the radiosensitivity of U251, T98G, A549, and MDA-MB-468 cells. In contrast, miR-200c inhibition upregulated p-EGFR and p-AKT, and decreased radiation-induced cell killing. miR-200c led to persistent gammaH2AX focus formation and downregulated pDNA-PKc expression. Autophagy and apoptosis were major modes of cell death. Bioinformatics analysis predicted that miR-200c may be associated with EGFR, AKT2, MAPK1, VEGFA, and HIF1AN. We also confirmed that miR-200c downregulated the expression of VEGF, HIF 1alpha, and MMP2 in U251 and A549 cells. In these cells, overexpressing miR-200c inhibited invasion, migration, and vascular tube formation. These phenotypic changes were associated with E-cadherin and EphA2 downregulation and N-cadherin upregulation. miR-200c showed no observable cytotoxic effect on normal human fibroblasts and astrocytes. Taken together, our data suggest that miR-200c is an attractive target for improving the efficacy of radiotherapy via a unique modulation of the complex regulatory network controlling cancer pro-survival signaling and EMT. PMID- 29029446 TI - A potential prognostic biomarker SPC24 promotes tumorigenesis and metastasis in lung cancer. AB - RESULTS: SPC24 is over-expressed in clinical lung adenocarcinoma samples, and high level of SPC24 is associated with advanced stages of lung tumors. Knocking down SPC24 repressed cell growth and promoted apoptosis. SPC24 deficiency reduced cancer cell migration as well. E-cadherin, one of the epithelial-mesenchymal transition markers, was up-regulated in the knockdown cells, along with down regulation of N-cadherin and Vimentin. Oncomine expression analyses further confirmed that high level of SPC24 is associated with tumors from smokers, recurrent patients, or patients with shorter survivals. PURPOSE AND METHODS: To reveal the role of SPC24, an important component of kinetochore, in the tumorigenesis of lung cancer, we performed Oncomine and immunohistochemistry (IHC) analyses for SPC24 in human lung adenocarcinoma tumors. We knocked down SPC24 in two non-small cell lung cancer (NSCLC) cell lines, PC9 and A549, by siRNA and evaluated cell proliferation, apoptosis, and migration in the SPC24 deficient cells. Using a mouse xenograft model, we compared in vivo tumor growth of the knockdown and control cells. We further performed multiple Oncomine expression analyses for SPC24 in various lung cancer datasets with important clinical characteristics and risk factors, including survival, recurrence, and smoking status. CONCLUSIONS: SPC24 is a novel oncogene of lung cancer, and can serve as a promising prognostic biomarker to differentiate lung tumors that have various clinicopathological characteristics. The findings of the current study will benefit the diagnosis, management, and targeted therapy of lung cancer. PMID- 29029447 TI - The association between renal sinus fat area and the progression-free survival in Chinese non-metastatic clear-cell renal cell carcinoma patients. AB - In this retrospective study, we evaluated the association between renal sinus fat area (RSFA) and survival in 268 Chinese non-metastatic clear-cell renal cell carcinoma (ccRCC) patients. Patients with high RSFA exhibited better progression free survival than those with low RSFA in both univariable (HR: 0.240; 95% CI: 0.119-0.482; p < 0.001) and multivariable (HR: 0.432; 95% CI: 0.369-2.749; p = 0.027) analyses. A propensity-score matched (PSM) analysis using Kaplan-Meier curves confirmed our findings (log-rank test; p = 0.028). Based on the multivariable analysis, we constructed a prognostic nomogram with 4 factors, namely, RSFA, Fuhrman grade, AJCC stage and sarcomatoid component. The c-index values for the Leibovich scoring system and the nomogram were 0.762 (95%CI, 0.688 0.835) and 0.823 (95%CI, 0.759-0.888), respectively. These findings demonstrate that high RSFA is associated with better progression-free survival in non metastatic ccRCC. PMID- 29029448 TI - Risk-stratified surveillance and cost effectiveness of follow-up after radical cystectomy in patients with muscle-invasive bladder cancer. AB - BACKGROUND: The recurrence risk stratification and the cost effectiveness of oncological surveillance after radical cystectomy are not clear. We aimed to develop a risk stratification and a surveillance protocol with improved cost effectiveness after radical cystectomy. RESULTS: Of 581 enrolled patients, 175 experienced disease recurrences. The pathology-based protocol presented significant differences in recurrence-free survival between normal- and high-risk patients, but the medical expense was high, especially in normal-risk (<=pT2pN0) patients. Cox regression analysis identified six factors associated with recurrence-free survival. Risk score-based 5-year follow-up was significantly more cost effective than the pathology-based protocol. MATERIALS AND METHODS: We retrospectively evaluated 581 patients with radical cystectomy for muscle invasive bladder cancer at 4 hospitals. Patients with routine oncological follow up were stratified into normal- and high-risk groups by a pathology-based protocol utilizing pT, pN, lymphovascular invasion, and histology. Cost effectiveness of the pathology-based protocol was evaluated and a risk-score based protocol was developed to optimize cost effectiveness. Risk-scores were calculated by summing risk factors independently associated with recurrence-free survival. Patients were stratified by low-, intermediate-, and high-risk score. Estimated cost per one recurrence detection by the pathology and by risk-scores were compared. CONCLUSIONS: Risk-score-stratified surveillance protocol has potential to reduce over-evaluation after radical cystectomy without adverse effects on medical cost. PMID- 29029450 TI - New insights in the clinical and translational relevance of miR483-5p in adrenocortical cancer. AB - Adrenocortical cancer (ACC) is a rare aggressive malignancy. Recent ACC integrated genomics analysis contributed to redefine the risk groups on molecular basis, including tumor microRNAs (miRs), detectable also in the bloodstream. We developed a quantitative real-time (RT) assay for the measurement of miR483 and miR483-5p absolute levels in plasma samples. miR483/miR483-5p levels were evaluated in plasma samples of 27 patients with ACC before surgery and at follow up. Statistically significant differences in miR483-5p and miR483 levels were found between stage 1/2 and stage 3/4 ACCs in pre-surgery and post-surgery samples. ROC curve analysis of miR483-5p levels gave a prediction of the clinical stage (accuracy 0.917+/-0.084), with the best cut-off value of 0.221 ng/ml, prognosticating overall and recurrence-free survival. In a multivariate Cox analysis (HR 16.2, 95%CI[1.39-188.6, P<0.026]), miR483-5p was the only variable that significantly predicted recurrence, but not overall survival. In addition, miR483 and miR483-5p levels correlated with the number of circulating tumor cells (CTCs) detected in the same blood samples, independently of the timing of sampling. In conclusion, we demonstrated that miR483-5p absolute plasma levels in ACC patients are powerful molecular markers that may help in the follow-up of patients after surgery and chemotherapy, and contribute to more accurately classify and predict tumor progression. PMID- 29029449 TI - Disrupted small-world brain network topology in pure conduct disorder. AB - OBJECTIVES: Conduct disorder (CD) is characterized by the violation of the rights of others or basic social rules and a repetitive, persistent pattern of antisocial and aggressive behaviors. A large number of functional and structural neuroimaging studies have identified widely abnormalities in specific brain regions in CD, but the alterations in the topological organization of functional networks among them remain largely unknown. METHODS: Resting-state functional magnetic resonance imaging was applied to investigate the intrinsic functional connectivity in 18 pure CD patients and eighteen typically developing healthy controls. We first constructed the functional networks and then examined the CD related alteration in topology properties using graph theoretical analysis. RESULTS: Both the CD group and healthy controls exhibited small-world topology. However, the CD group showed decreased global and local efficiency. Changes in the nodal characteristics in CD group were found predominantly in the default mode network, visual, and striatum regions. In addition, altered fronto-limbic striatum network topology was found to have a relationship with clinical scores. CONCLUSIONS: Our findings indicate the altered nodal topology of brain functional connectivity networks in CD. SIGNIFICANCE: The results provide unequivocal evidence of a topological disruption in the brain networks that suggest some possible pathophysiological mechanisms underlying CD. PMID- 29029451 TI - Transcriptome analysis reveals a role for the endothelial ANP-GC-A signaling in interfering with pre-metastatic niche formation by solid cancers. AB - Cancer establishes a microenvironment called the pre-metastatic niche in distant organs where disseminated cancer cells can efficiently metastasize. Pre metastatic niche formation requires various genetic factors. Previous studies suggest that inhibiting a single niche-factor is insufficient to completely block pre-metastatic niche formation especially in human patients. Here we show that the atrial natriuretic peptide (ANP), an endogenous hormone produced by the heart, inhibits pre-metastatic niche formation and metastasis of murine solid cancer models when pharmacologically supplied in vivo. On the basis of a wealth of comprehensive RNA-seq data, we demonstrated that ANP globally suppressed expression of cancer-induced genes including known niche-factors in the lung. The lungs of mice overexpressing GC-A, a receptor for ANP in endothelial cells, were conferred resistance against pre-metastatic niche formation. Importantly, neither ANP administration nor GC-A overexpression had a detrimental effect on lung gene expression in a cancer-free condition. The current study establishes endothelial ANP-GC-A signaling as a therapeutic target to control the pre-metastatic niche. PMID- 29029452 TI - The H3K27me3-demethylase KDM6A is suppressed in breast cancer stem-like cells, and enables the resolution of bivalency during the mesenchymal-epithelial transition. AB - The deposition of the activating H3K4me3 and repressive H3K27me3 histone modifications within the same promoter, forming a so-called bivalent domain, maintains gene expression in a repressed but transcription-ready state. We recently reported a significantly increased incidence of bivalency following an epithelial-mesenchymal transition (EMT), a process associated with the initiation of the metastatic cascade. The reverse process, known as the mesenchymal epithelial transition (MET), is necessary for efficient colonization. Here, we identify numerous genes associated with differentiation, proliferation and intercellular adhesion that are repressed through the acquisition of bivalency during EMT, and re-expressed following MET. The majority of EMT-associated bivalent domains arise through H3K27me3 deposition at H3K4me3-marked promoters. Accordingly, we show that the expression of the H3K27me3-demethylase KDM6A is reduced in cells that have undergone EMT, stem-like subpopulations of mammary cell lines and stem cell-enriched triple-negative breast cancers. Importantly, KDM6A levels are restored following MET, concomitant with CDH1/E-cadherin reactivation through H3K27me3 removal. Moreover, inhibition of KDM6A, using the H3K27me3-demethylase inhibitor GSK-J4, prevents the re-expression of bivalent genes during MET. Our findings implicate KDM6A in the resolution of bivalency accompanying MET, and suggest KDM6A inhibition as a viable strategy to suppress metastasis formation in breast cancer. PMID- 29029453 TI - PTEN loss detection in prostate cancer: comparison of PTEN immunohistochemistry and PTEN FISH in a large retrospective prostatectomy cohort. AB - PTEN deletion is an established prognostic biomarker in prostate cancer. We compared PTEN immunohistochemistry (IHC) and PTEN fluorescence in situ hybridization (FISH) in the largest existing radical prostatectomy cohort with clinical follow-up data. There was high concordance between IHC and FISH: 93% (3098/3330) of tumors with intact PTEN IHC showed absence of PTEN gene deletion and 66% (720/1087) of cases with PTEN protein loss by IHC showed PTEN gene deletion by FISH. 84% (447/533) of cases with PTEN homozygous gene deletion had PTEN protein loss by IHC. PTEN loss by IHC was associated with reduced PSA recurrence-free survival (RFS) in multivariable models (HR=1.3; 95% CI: 1.16 1.47). Among cases with either PTEN deletion or absence of PTEN deletion by FISH, PTEN loss by IHC was strongly associated with reduced RFS on univariable analysis (p=0.0005 and p<0.0001 respectively). Among cases with intact PTEN by IHC, homozygous (p=0.04) but not heterozygous (p=0.10) PTEN gene deletion was weakly associated with reduced RFS. Among cases with PTEN loss by IHC, both homozygous (p=0.0044) and heterozygous (p=0.0017) PTEN gene deletion were associated with reduced RFS. These data support the utility of PTEN IHC and PTEN FISH as complementary screening tools for PTEN loss in prostate cancer. PMID- 29029454 TI - Long noncoding RNA AB073614 promotes the malignance of glioma by activating Wnt/beta-catenin signaling through downregulating SOX7. AB - Long noncoding RNA (lncRNA) AB073614 has recently shown to be aberrantly increased and identified as a poor prognostic biomarker in human glioma. However, the potential mechanisms remain unknown. This study demonstrated that AB073614 expression was significantly upregulated in both glioma tissues and cell lines, and glioma patients with high AB073614 expression had lower overall survival rates. Importantly, silencing AB073614 expression remarkably inhibited U251 cell proliferation, migration, and invasion in vitro, as well as suppressed tumor formation in vivo. The level of AB073614 was found to correlate inversely with sex-determining region Y-box 7 (SOX7) expression but correlate positively with Wnt/beta-catenin signaling activity. Of note, the data showed that the inhibition of SOX7 could reverse the tumor-suppressive effect of the silencing AB073614 on glioma in vitro and in vivo. Furthermore, the results indicated that AB073614 induced Wnt/beta-catenin signaling activity by repressing SOX7 expression. In conclusion, the findings demonstrated that AB073614 promoted the progression of glioma by targeting SOX7 to activate the Wnt/beta-catenin signaling pathway, suggesting that the inhibition of AB073614 might be a potential target for therapeutic intervention in glioma patients. PMID- 29029455 TI - Mobilization studies in mice deficient in sphingosine kinase 2 support a crucial role of the plasma level of sphingosine-1-phosphate in the egress of hematopoietic stem progenitor cells. AB - Sphingosine-1-phosphate (S1P) is a bioactive lipid involved in cell signaling and, if released from cells, also plays a crucial role in regulating the trafficking of lympho-hematopoietic cells, including primitive hematopoietic stem/progenitor cells (HSPCs). It has been demonstrated that S1P chemoattracts HSPCs, and its level in peripheral blood creates a gradient directing egress of these cells during mobilization. In this paper we analyzed hematopoiesis in mice deficient in sphingosine kinase 2 (Sphk2-KO mice) and studied the effect of this mutation on plasma S1P levels. We found that Sphk2-KO mice have normal hematopoiesis, and, in contrast to Sphk1-KO mice, the circulating S1P level is highly elevated in these animals and correlates with the fact that HSPCs in Sphk2 KO animals, also in contrast to Sphk1-KO animals, show enhanced mobilization. These results were recapitulated in wild type (WT) animals employing an Sphk2 inhibitor. We also administered an inhibitor of the S1P-degrading enzyme S1P lyase, known as tetrahydroxybutylimidazole (THI), to WT mice and observed that this resulted in an increase in S1P level in PB and enhanced mobilization of HSPCs. In sum, our results support a crucial role for S1P gradients in blood plasma in the mobilization process and indicate that small-molecule inhibitors of Sphk2 and Sgpl1 could be employed as mobilization-facilitating compounds. At the same time, further studies are needed to explain the unexpected effect of Sphk2 inhibition on increasing S1P levels in plasma. PMID- 29029457 TI - Prognostic relevance of protein expression, clinical factors, and MYD88 mutation in primary bone lymphoma. AB - Primary bone lymphomas (PBLs) are composed of malignant lymphoid cells presenting in osseous sites, without supra-regional lymph node or extranodal involvement. We systematically characterized the immunophenotype and the myeloid differentiation factor 88 (MYD88)-L265P gene mutation status in PBL. Clinical data from 19 patients with PBL treated at Nanjing Drum Tower Hospital between 2009 and 2015 were analyzed retrospectively. Protein expression patterns were identified immunohistochemically, and MYD88 mutation was assessed using polymerase chain reaction and direct DNA sequencing. Fifteen patients presented with diffuse large B-cell lymphoma. Clinical factors favoring a good prognosis were an age < 60 years and rituximab treatment. B-cell lymphoma 2 expression was detected in 5/15 diffuse large B-cell lymphoma patients, and was associated with a poor prognosis in a univariate model. Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signaling factors were upregulated in PBLs. All eighteen evaluable PBL samples harbored wild-type MYD88. These data thus suggest that age and rituximab treatment are independent prognostic factors determining overall survival, and that activation of JAK/STAT3 signaling may promote the pathogenesis of PBL. Moreover, the absence of MYD88-L265P mutation in PBL indicate there are distinct pathogenetic backgrounds among extranodal lymphomas. PMID- 29029456 TI - Protein tyrosine phosphatase nonreceptor type 22 (PTPN22) gene single nucleotide polymorphisms and its interaction with T2DM on pulmonary tuberculosis in Chinese Uygur population. AB - AIMS: To investigate the association of several single nucleotide polymorphisms (SNPs) within Protein tyrosine phosphatase nonreceptor type 22 (PTPN22) gene and additional gene- gene and gene- type 2 diabetes mellitus (T2DM) interaction with pulmonary tuberculosis (PTB) risk in Chinese Uygur population. METHODS: A total of 722 participants (186 males, 536 females) were selected, including 360 PTB patients and 362 control participants. Generalized multifactor dimensionality reduction (GMDR) was used to screen the best interaction combination among SNPs and T2DM. Logistic regression was performed to investigate association between 3 SNPs within PTPN22 gene, additional gene- gene and gene- T2DM interaction on PTB risk. RESULTS: Logistic regression analysis showed that PTB risk was significantly lower in carriers with rs2476601- CT genotype than those with CC genotype (CT versus CC), adjusted OR (95%CI) =0.42 (0.17-0.83), and higher in carriers with the rs33996649- GA genotype than those with GG genotype (GA versus GG), adjusted OR (95%CI) = 5.66 (2.24-9.47). We found a significant two-locus model (p=0.0010) involving rs33996649 and T2DM. Overall, the cross-validation consistency of this two- locus model was 10/ 10, and the testing accuracy was 60.11%. We also conducted stratified analysis for rs33996649 and T2DM using logistic regression. We found that T2DM patients with rs33996649 - GA genotype have the highest PTB risk, compared to non- T2DM patients with rs33996649- GG genotype, OR (95%CI) = 4.52 (2.71 -6.43), after covariates adjustment. CONCLUSIONS: We found that the T allele of rs2476601 and the A allele of rs33996649within PTPN22 gene, interaction between rs2476601 and T2DM were all associated with increased PTB risk. PMID- 29029458 TI - LMO1 polymorphisms reduce neuroblastoma risk in Chinese children: a two-center case-control study. AB - Previous genome-wide association and validation studies suggest that LIM domain only 1 (LMO1) gene polymorphisms affect neuroblastoma susceptibility. In this work, we used Taqman methodology to genotype four LMO1 polymorphisms (rs110419 A > G, rs4758051 G > A, rs10840002 A > G and rs204938 A > G) in 118 neuroblastoma cases and 281 controls from Northern China. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to evaluate the association. We found that rs4758051 G > A was associated with a decreased neuroblastoma risk (AA vs. GG: adjusted OR = 0.28, 95% CI = 0.13-0.62; AG/AA vs. GG: adjusted OR = 0.62, 95% CI = 0.40-0.97; AA vs. GG/AG: adjusted OR = 0.33, 95% CI = 0.15-0.69). Likewise, carrying the rs10840002 G allele was also associated with a decreased neuroblastoma risk in this Northern Chinese population. In a combination analysis using Southern and Northern Chinese populations, we found that those carrying the rs110419 G, rs4758051 A or rs10840002 G allele were at decreased neuroblastoma risk, and this finding was supported by a false-positive report probability analysis. These results further verify that LMO1 polymorphisms are protective against neuroblastoma. Case-control studies with larger samples and using other ethnicities are still needed to confirm our conclusion. PMID- 29029460 TI - VRK1 promotes cisplatin resistance by up-regulating c-MYC via c-Jun activation and serves as a therapeutic target in esophageal squamous cell carcinoma. AB - Esophageal squamous cell carcinoma (ESCC) is a common malignant disease characterized by poor prognosis. Chemoresistance remains a major cause of ESCC relapse. Vaccinia-related kinase 1 (VRK1) has previously been identified as a cancer-related gene. However, there is little research demonstrating an association between VRK1 and ESCC. In this study, we show that VRK1 is overexpressed in ESCC primary tumor samples and cell lines. VRK1 expression was significantly correlated with clinical characteristics and predicted poor outcomes in ESCC patients. Functionally, knockdown of VRK1 inhibited ESCC cell proliferation, survival, migration and invasion; conversely, VRK1 overexpression produced the opposite effects. Furthermore, we found that up-regulation of VRK1 promoted cisplatin (CDDP) resistance in ESCC both in vitro and in vivo, whereas knockdown of VRK1 reduced this resistance. Further studies verified that VRK1 phosphorylated c-Jun and that the VRK1/c-Jun pathway contributed to CDDP resistance in ESCC. Mechanistically, a dual luciferase reporter assay revealed that c-Jun transcriptionally activated the expression of c-MYC. Silencing c-MYC abolished the c-Jun-mediated CDDP resistance of ESCC cells. A Kaplan-Meier analysis indicated that c-MYC is a potential prognostic factor in ESCC. Finally, luteolin, a VRK1 inhibitor, attenuated the malignant biological behaviors and CDDP resistance in ESCC cells. Collectively, we conclude that VRK1 promotes CDDP resistance through c-MYC by activating c-Jun and potentiating a malignant phenotype in ESCC. Our studies provide novel insight into the role of VRK1 in carcinogenesis and indicate that VRK1 can serve as a potential therapeutic target in ESCC. PMID- 29029461 TI - Prognostic value of long non-coding RNA TUG1 in various tumors. AB - Taurine up-regulated gene 1 (TUG1) is a long non-coding RNA (lncRNA), has been reported that be dysregulated in various tumors, involved in proliferation and apoptosis in a variety of tumor cells. To detect the clinical significance of TUG1 expression in tumor patients, we carried out current systematic review and meta-analysis investigating its relation with the prognosis and clinicopathological features of cancers. A total of 15 studies comprise 1560 patients were analyzed. The pooled results showed that no significant relationship between high TUG1 expression and overall survival (OS) (HR = 1.28, 95% CI: 0.96-1.69, P = 0.091) in various tumors. In the subgroup analysis by cancer type, elevated TUG1 expression was associated with poorer survival in cancer patients with high TUG1 expression subgroup but better survival in patients with low TUG1 expression subgroup. Over-expression of TUG1 associated with significantly unfavorable survival for bladder cancer (HR=2.67, 95% CI: 1.47 4.87, P = 0.001). Up-regulation of TUG1 correlated with distant metastasis (DM) (OR = 4.22, 95% CI: 2.66-6.70, P < 0.001) and tumor differentiation (OR = 2.45, 95% CI: 1.28-4.70, P = 0.007), but failed to show inline to gender (OR = 1.04, 95% CI: 0.77-1.42, P = 0.774), age (OR = 0.75, 95% CI: 0.51-1.10, P = 0.136), lymph node metastasis (LNM) (OR = 1.45, 95% CI: 0.85-2.50, P = 0.177), and TNM stage (OR = 0.55, 95% CI: 0.17-1.81, P = 0.326). The overall results suggest lncRNA TUG1 may be a useful prognostic biomarker in cancer patients. PMID- 29029459 TI - Melatonin promotes the proliferation of GC-1 spg cells by inducing metallothionein-2 expression through ERK1/2 signaling pathway activation. AB - Synthesized by the pineal gland, melatonin is a neurohormone implicated in diverse physiological functions via several mechanisms. However, the role of melatonin in spermatogenesis and its underlying mechanisms have yet to be completely understood. In the present study, transcriptome sequencing was performed to characterize the mechanism of melatonin-induced GC-1 spg proliferation. Gene ontology (GO) enrichment and pathway analyses were also conducted to identify the signaling pathways and biological processes involved in differential mRNA expression. Results revealed 28 differential genes. Of these genes, 11 were upregulated and 17 were downregulated. Melatonin increased the expression of metallothionein-2 (Mt2), a gene that acts as a protector to sequester nonessential toxic heavy metals. Functional investigations demonstrated that Mt2 overexpression promoted the proliferation of GC-1 spg cells, but Mt2 knockdown significantly suppressed their proliferation and increased their apoptosis. Mechanistic analysis indicated that the extracellular-signal-regulated kinase 1/2 (ERK1/2) pathway participated in melatonin-promoted proliferation of GC-1 spg cells. Therefore, melatonin induces the proliferation of GC-spg 1 cells by stimulating Mt2 expression, and this process is mediated by the ERK1/2 signaling pathway. PMID- 29029462 TI - The appropriate number of ELNs for lymph node negative breast cancer patients underwent MRM: a population-based study. AB - Whether number of examed lymph nodes (ELNs) would bring survival benefit for patients with negative lymph nodes after modified radical mastectomy (MRM) is uncertain. In our study, using the Surveillance Epidemiology and End Results (SEER) database between 2004 and 2009, we screened the appropriate patients with negative lymph nodes underwent MRM. The Cox proportional hazard analysis was used to determine the effect of number of ELNs on cancer specific survival (CSS). The results showed that the number of ELNs was not an independent prognostic factor on CSS (P = 0.940). Then the X-tile mode was used to determine the appropriate threshold for ELNs count. The results showed that 9 was the appropriate cut-off point. Next, the log-rank chi2 test was used to analyze the CSS based on different subgroup variables. The results showed that some subgroup variables including age < 50/ >= 50, grade I/III, AJCC T1/T2, ER positive/negative and PR positive/negative ,demonstrated significant CSS benefits among the patients with the number of ELNs <= 9 (all, P < 0.05). However, three subgroup variables including grade II, AJCC T3 and AJCC T4, the patients with the number of ELNs <= 9 did not bring significant CSS benefits (all, P > 0.1). In conclusion, our study demonstrated that the number of ELNs was not an independent prognostic factor on CSS, and 9 can be selected as the appropriate cut-off point of ELNs for patients with negative lymph nodes who underwent MRM. PMID- 29029463 TI - Cystathionine- gamma-lyase promotes process of breast cancer in association with STAT3 signaling pathway. AB - Here we provide evidences to link cystathionine-gamma-lyase (CSE) to the development of breast cancer. CSE expression is up-regulated in both breast cancers and breast cancer cell lines and results in proliferation and migration of breast cancer cells. CSE Function in breast cancer depends on the STAT3 signaling pathway, a regulator of critical cell functions including cell growth in a wide variety of human cancer cells via activating the expression of relative genes. STAT3 positively relates to CSE expression. It activates the CSE promoter via a direct binding to the promoter. Moreover, CSE could reversely regulate STAT3 expression and consequently enhance the effect of STAT3 on CSE. Taken together, these data demonstrate for the first time the roles of CSE in breast cancer leading to breast cancer development in association with STAT3 signaling pathway. PMID- 29029464 TI - MiR-324-3p promotes tumor growth through targeting DACT1 and activation of Wnt/beta-catenin pathway in hepatocellular carcinoma. AB - Recently, it has been reported that miR-324-3p participates in regulation of the carcinogenesis and tumor progression in various cancers. However, the expression and function of miR-324-3p in hepatocellular carcinoma (HCC) remain unclear. In the current study, miR-324-3p expression was significantly up-regulated in HCC tissues and cell lines. HCC patients with high miR-324-3p level showed poor prognostic features and shorter overall survival and disease-free survival. And in vitro and in vivo experiments revealed that miR-324-3p promoted cell viability, colony formation, proliferation and cell cycle progression of HCC cells. Further studies demonstrated that miR-324-3p could directly target DACT1 (dishevelled binding antagonist of beta catenin 1) and negatively regulated its expression in HCC cells. And rescue experiments revealed that DACT1 could reverse the effects of miR-324-3p on HCC cells. Furthermore, the accumulation of both cytoplasmic and nuclear beta-catenin as well as its downstream targets including c-Myc and cyclin D1 could be positively regulated by miR-324-3p. The regulatory effects of miR-324-3p on beta-catenin, c-Myc and cyclin D1 levels could be reversed by DACT1. Overall, we concluded that miR-324-3p could promote tumor growth through targeting DACT1 and activation of Wnt/beta-catenin pathway in HCC. MiR-324-3p may be a ponderable and promising therapeutic target for HCC. PMID- 29029465 TI - Alterations in DNA methylation/demethylation intermediates predict clinical outcome in chronic lymphocytic leukemia. AB - Cytosine derivative dysregulations represent important epigenetic modifications whose impact on the clinical outcome in chronic lymphocytic leukemia (CLL) is incompletely understood. Hence, global levels of 5-methylcytosine (5-mCyt), 5 hydroxymethylcytosine (5-hmCyt), 5-carboxylcytosine (5-CaCyt) and 5 hydroxymethyluracil were tested in purified B cells from CLL patients (n = 55) and controls (n = 17). The DNA methylation 'writers' (DNA methyltransferases [DNMT1/3A/3B]), 'readers' (methyl-CpG-binding domain [MBD2/4]), 'editors' (ten eleven translocation [TET1/2/3]) and 'modulators' (SAT1) were also evaluated. Accordingly, patients were stratified into three subgroups. First, a subgroup with a global deficit in cytosine derivatives characterized by hyperlymphocytosis, reduced median progression free survival (PFS = 52 months) and shorter treatment free survival (TFS = 112 months) was identified. In this subgroup, major epigenetic modifications were highlighted including a reduction of 5-mCyt, 5-hmCyt, 5-CaCyt associated with DNMT3A, MBD2/4 and TET1/2 downregulation. Second, the cytosine derivative analysis revealed a subgroup with a partial deficit (PFS = 84, TFS = 120 months), mainly affecting DNA demethylation (5-hmCyt reduction, SAT1 induction). Third, a subgroup epigenetically similar to controls was identified (PFS and TFS > 120 months). The prognostic impact of stratifying CLL patients within three epigenetic subgroups was confirmed in a validation cohort. In conclusion, our results suggest that dysregulations of cytosine derivative regulators represent major events acquired during CLL progression and are independent from IGHV mutational status. PMID- 29029466 TI - A comparative study of anti-aging properties and mechanism: resveratrol and caloric restriction. AB - Resveratrol and caloric restriction (CR) are the powerful therapeutic options for anti-aging. Here, their comparative effect on longevity-associated gene silencing information regulator (SIRT1) were evaluated in vitro and in vivo. IMR-90 cells treated with 2,2'-azobis (2-amidinopropane) dihydrochloride (AAPH) were applied to establish a cellular senescence model, and rats treated with D-galactose (D gal) were used as an aging animal model. Resveratrol and CR exhibited similar anti-aging activities, evidenced by inhibiting senescence and apoptosis, and restoring cognitive impairment and oxidative damage. Moreover, they could up regulate telomerase (TE) activity, increase expressions of SIRT1, forkhead box 3a (Foxo3a), active regulator of SIRT1 (AROS) and Hu antigen R (HuR ), but decrease p53 and deleted in breast cancer 1 (DBC1) levels. However, 10 MUM resveratrol in vitro and the high dose group in vivo showed relatively stronger activities of anti-aging and stimulating SIRT1 level than CR. In conclusion, resveratrol and CR showed similar anti-aging activities on SIRT1 signaling, implicating the potential of resveratrol as a CR mimetic. PMID- 29029467 TI - NHERF1 together with PARP1 and BRCA1 expression as a new potential biomarker to stratify breast cancer patients. AB - It has been recognized that Na+/H+ Exchanger Regulatory Factor 1 (NHERF1) in breast cancer (BC) acts as a tumor suppressor or as an oncogenic protein, depending on its subcellular localization. This study aims to correlate NHERF1 expression to BRCA1 and PARP1 proteins, to investigate their relationship, and their biological and clinical significance. Using immunohistochemistry on tissue microarrays, we evaluated subcellular NHERF1, BRCA1 and PARP1 expression in 308 BCs including a subgroup (n=80) of triple negative BCs (TNBCs). Herein, we show that nuclear NHERF1 (nNHERF1) expression was significantly associated with nuclear BRCA1 (nBRCA1) expression (p=0.0008), and an association was also found between nuclear PARP1 (nPARP1) and nBRCA1 (p<0.0001). Cytoplasmic NHERF1 (cNHERF1) was correlated to nPARP1 (p<0.0001). Survival analyses showed that the patients with positive nPARP1 and nNHERF1 tended toward a shorter 5-year overall survival (OS) (p=0.057). In TNBCs, the association between nBRCA1 and nPARP1 was maintained (p<0.0001), and an association between nNHERF1 and nPARP1 was observed (p=0.010). Univariate analysis revealed that TNBCs with positive cNHERF1 and nPARP1 had a shorter 5-year OS (p=0.048). Our data suggest that NHERF1 could be a new potential biomarker in combination with PARP1 and BRCA1 expression to stratify BC patients. In particular, in TNBCs, cNHERF1 associated with nPARP1 expression identified a patient subgroup with a shorter survival, for whom it may be useful to develop novel therapeutic strategies. PMID- 29029468 TI - Resveratrol promotes MICA/B expression and natural killer cell lysis of breast cancer cells by suppressing c-Myc/miR-17 pathway. AB - Major histocompatibility complex class I chain-related proteins A and B (MICA and MICB) are important ligands for recognition of tumor cells by immune effector cells. Here, we report that resveratrol upregulated the protein and mRNA expression of MICA and MICB in breast cancer cells, which in turn promoted breast cancer cell lysis by natural killer (NK) cells in vitro and in vivo. Antibodies against NK group 2 member D blocked this effect. The 3'-untranslated regions of MICA and MICB were found to be direct binding targets of miR-17. MICA and MICB expression increased or decreased in breast cancer cells transfected with a miR 17 inhibitor or mimic, respectively. C-Myc overexpression/knockdown increased/decreased transcription of the miR-17-92 cluster host gene. Resveratrol suppressed c-Myc expression, which inhibited the transcription of miR-17-92 cluster, thereby downregulating miR-17. MiR-17 expression correlated inversely with MICA and MICB expression and overall survival in two sets of breast cancer specimens. Resveratrol thus upregulates MICA and MICB by suppressing the c Myc/miR-17 pathway in breast cancer cells, and increases the cytolysis of breast cancer cells by NK cells. This suggests resveratrol has the potential to promote antitumor immune responses in breast cancer patients. PMID- 29029469 TI - Genetic and environmental factors and serum hormones, and risk of estrogen receptor-positive breast cancer in pre- and postmenopausal Japanese women. AB - Breast cancer incidence in Japanese women has more than tripled over the past two decades. We have previously shown that this marked increase is mostly due to an increase in the estrogen receptor (ER)-positive, HER2-negative subtype. We conducted a case-control study; ER-positive, HER2-negative breast cancer patients who were diagnosed since 2011 and women without disease were recruited. Environmental factors, serum levels of testosterone and 25-hydroxyvitamin D, and common genetic variants reported as predictors of ER-positive breast cancer or found in Asian women were evaluated between patients and controls in pre- and postmenopausal women. To identify important risk predictors, risk prediction models were created by logistic regression models. In premenopausal women, two environmental factors (history of breastfeeding, and history of benign breast disease) and four genetic variants (TOX3-rs3803662, ESR1-rs2046210, 8q24 rs13281615, and SLC4A7-rs4973768) were considered to be risk predictors, whereas three environmental factors (body mass index, history of breastfeeding, and hyperlipidemia), serum levels of testosterone and 25-hydroxyvitamin D, and two genetic variants (TOX3-rs3803662 and ESR1-rs2046210) were identified as risk predictors. Inclusion of common genetic variants and serum hormone measurements as well as environmental factors improved risk assessment models. The decline in the birthrate according to recent changes of lifestyle might be the main cause of the recent notable increase in the incidence of ER-positive breast cancer in Japanese women. PMID- 29029470 TI - Real-time in vivo imaging of metastatic bone tumors with a targeted near-infrared fluorophore. AB - Tumors of the prostate or breast are particularly likely to metastasize to the bone, and early diagnosis of metastatic bone tumors is important for designing an effective treatment strategy. Imaging modalities for the detection of bone metastasis are limited, and radiation-based techniques are commonly used. Here, we investigated the efficacy of selective near-infrared (NIR) fluorescence detection of metastatic bone tumors and its role in the detection of bone metastasis in prostate and breast cancer cell lines and in a xenograft mouse model. A targeted NIR fluorophore was used to monitor metastatic bone tumors using a NIR fluorescence imaging system in real time, enabling the diagnosis of bone metastasis in vivo by providing the location of the metastatic bone tumor. The NIR fluorescence imaging technique using targeted NIR contrast agents is a potential tool for the early diagnosis of bone tumors. PMID- 29029471 TI - Protective effect of resveratrol against light-induced retinal degeneration in aged SAMP8 mice. AB - PURPOSE: The purpose of this study was to determine the protective effects of Resveratrol (RESV) on acute bright light-induced retinal degeneration in aged senescence accelerated mouse strain. METHODS: Ten three-month-old male SAMP8 mice (prone to aging) were randomly assigned to two experimental dietary groups: one untreated group and one RESV treatment group (n=20 eyes for each group). After 30 days of treatment, mice were exposed to intense bright light. Ten male SAMR1 mice (resistant to aging) served as control (n=20 eyes). The protective effects of RESV administration on light-induced retinal degeneration in SAMP8 strain as well as the effect of bright light damage in the retinas of SAMP8 mice were analyzed by electroretinography (ERG), retinal histology, mRNA, protein and lipid profile. RESULTS: 68%-85% of a-wave amplitude and 72%-92% of b-wave amplitude were persevered by RESV in SAMP8 mice that were exposed to light damage. Also, RESV preserved their photoreceptor nuclei. mRNA expression of neuroprotective factors leukemia inhibitory factor (LIF), brain derived neurotrophic factor (BDNF), oncostatin M (OSM), cardiotrophin 1(CT-1) and cardiotrophin-like cytokine (CLC) were up-regulated 28, 8, 7, 5 and 9-fold in SAMP8 mice after RESV treatment. In addition, RESV could suppress the NF-kappaB pathway by down-regulating the expression of pIkappaB. Light damage led to increase of saturated FA, monoenoic FA, n6 PUFA and n6/n3 ratio and decrease of Docosahexaenoic acid (DHA). There was no significant difference on DHA and the ratio of n6/n3-FA between the untreated and RESV treated SAMP8 mice. CONCLUSIONS: Collectively, our study provides evidence that RESV prevents light-induced retinal damage associated with aging. PMID- 29029472 TI - Up-regulation of brain-expressed X-linked 2 is critical for hepatitis B virus X protein-induced hepatocellular carcinoma development. AB - Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related death worldwide. Chronic hepatitis B virus (HBV) infection is a major cause for HCC. Hepatitis B virus X (HBx), one of four proteins encoded by HBV genome, plays a vital role in the pathogenesis of HBV-induced HCC. However, the molecular mechanisms of HBx-triggered HCC remain largely undetermined. Here we revealed that the expression of Brain-expressed X-linked 2 (BEX2) and Osteopontin (OPN) were elevated in liver tissues of HBV transgenic mice and human HCC specimens. Moreover, a positive correlation between BEX2 and OPN was exhibited in samples from HCC patients with HBV infection. The protein levels of BEX2 and OPN were both higher in HBV-positive HCC specimens compared to that of HBV-negative HCC specimens. HBx potentiated OPN expression through up-regulation of BEX2. Importantly, the depletion of BEX2 suppressed tumorigenic potential of HCC cells with highly expressed HBx. We demonstrated the important role of BEX2 in HCC pathogenesis, and BEX2 may be a novel therapeutic target for HCC patients with HBV infection. The newly identified HBx/BEX2/OPN signaling cassette is implicated in the pathogenesis of HBV-induced HCC. PMID- 29029473 TI - NBPF7 promotes the proliferation of alpha-catenin-knockdown HaCaT cells via functional interaction with the NF-kappaB pathway. AB - Loss of key components that form cell-cell adherens junctions, such as alpha catenin, triggers severe epidermal hyperproliferation. However, the underlying molecular mechanisms remain largely unknown. We report here that neuroblastoma breakpoint family (NBPF) genes are upregulated and that NBPF7 specifically promotes cellular proliferation of alpha-catenin-silenced HaCaT cells through functional linkage with the NF-kappaB pathway. Genome-wide profiling of HaCaT cells shows that NBPF genes are upregulated following alpha-catenin knockdown. Data from western blot analyses are consistent with the activation of the NF kappaB pathway as well as increased expression of NBPF7 by alpha-catenin knockdown. Co-immunoprecipitation assays indicate that NBPF7 could be detected in endogenous activated NF-kappaB immunoprecipitates. Immunoflurence analyses demonstrate that NBPF7 co-localizes with activated NF-kappaB in the nucleus after alpha-catenin silencing. Moreover, inhibition of NBPF7 decreases the proliferation of HaCaT cells and abolishes the enhanced proliferation associated with alpha-catenin knockdown in HaCaT cells. These results indicate that NBPF7 plays a key role in the alpha-catenin signaling pathway that regulates cell proliferation of keratinocytes. Our findings suggest that the classical NF-kappaB pathway plays a critical role in cellular proliferation and that NBPF7 is a functional mediator for alpha-catenin in the regulation of keratinocyte growth. PMID- 29029474 TI - Regulatory actions of ToxR and CalR on their own genes and type III secretion system 1 in Vibrio parahaemolyticus. AB - Vibrio parahaemolyticus is the leading cause of seafood-associated gastroenteritis. Type III secretion system 1 (T3SS1) is one of the virulence determinants of this bacteria. T3SS1 expression is regulated by ToxR and CalR. ToxR represses the transcription of T3SS1 genes via activation of CalR, which acts as a transcriptional repressor of T3SS1 genes. However, the transcriptional regulation mechanisms have not been elucidated. As showing in the present work, ToxR binds to the promoter DNA region of calR to activate its transcription. CalR occupies the promoter-proximal regions of each detected target operons in T3SS1 loci to repress their transcription, and thereby inhibiting T3SS1-dependent cytotoxicity. Moreover, a feedback CalR inhibits toxR and its own gene in a direct manner. Collectively, this work reported an interesting gene regulatory network involving the reciprocal regulation of ToxR and CalR, and their regulation on T3SS1 genes transcription in V. parahaemolyticus. PMID- 29029475 TI - The prognostic potential and carcinogenesis of long non-coding RNA TUG1 in human cholangiocarcinoma. AB - Cholangiocarcinoma (CCA) is a fatal disease with increasing worldwide incidence and is characterized by poor prognosis due to its poor response to conventional chemotherapy or radiotherapy. Long non-coding RNAs (lncRNAs) play key roles in multiple human cancers, including CCA. Cancer progression related lncRNA taurine up-regulated gene 1 (TUG1) was reported to be involved in human carcinomas. However, the impact of TUG1 in CCA is unclear. The aim of this study was to explore the expression pattern of TUG1 and evaluate its clinical significance as well as prognostic potential in CCA. In addition, the functional roles of TUG1 including cell proliferation, apoptosis, migration, invasion and epithelial mesenchymal transition (EMT), were evaluated after TUG1 silencing. Our data demonstrated up-regulation of TUG1 in both CCA tissues and cell lines. Moreover, overexpression of TUG1 is linked to tumor size (p=0.005), TNM stage (p=0.013), postoperative recurrence (p=0.036) and overall survival (p=0.010) of CCA patients. Furthermore, down-regulation of TUG1 following RNA silencing reduced cell growth and increased apoptosis in CCA cells. Additionally, TUG1 suppression inhibited metastasis potential in vitro by reversing EMT. Overall, our results suggest that TUG1 may be a rational CCA-related prognostic factor and therapeutic target. PMID- 29029476 TI - Contrastive study of two screening criteria for active surveillance in patients with low-risk papillary thyroid microcarcinoma: a retrospective analysis of 1001 patients. AB - Screening out patients who do not require immediate surgery is a growing trend in the field of thyroid research. In this study, we retrospectively compared the application of two surveillance selection criteria in 1001 patients who had undergone surgical treatment of papillary thyroid microcarcinoma (PTMC): low-risk PTMC characteristics defined by Kuma Hospital and CATO consensus on PTMC management of active surveillance. Treatment outcomes were compared between groups. We then analyzed the prognostic indicators of patients who could be managed by surveillance. A total of 724 patients met Kuma screening criteria and 135 met CATO screening criteria. The Kuma low-risk group had a lower incidence of multifocal lesions and CLNM than Kuma high-risk group. We also found more obvious differences in multifocal lesions, CLNM and extrathyroidal extension when evaluating the CATO low-risk criteria in the same manner. On the other hand, patients in the CATO low-risk group had a lower disease progression rate and longer disease-free survival than those in CATO high-risk group. There was no significant difference in prognosis between the Kuma low-risk group and Kuma high risk group. Our logistic regression analysis showed that a preoperative ultrasound size of >5 mm, male sex, younger age, and malignant lesions without concurrent benign nodules could be predictors of CLNM. In conclusion, patients classified in CATO low-risk criteria had lower proportion of clinicopathological risk factors than the ones in Kuma low-risk criteria. We also found more risk factors may not be suitable for surveillance, such as tumors without concurrent benign nodules. PMID- 29029477 TI - Coexpression analysis identifies nuclear reprogramming barriers of somatic cell nuclear transfer embryos. AB - The success of cloned animal "Dolly Sheep" demonstrated the somatic cell nuclear transfer (SCNT) technique holds huge potentials for mammalian asexual reproduction. However, the extremely poor development of SCNT embryos indicates their molecular mechanism remain largely unexplored. Deciphering the spatiotemporal patterns of gene expression in SCNT embryos is a crucial step toward understanding the mechanisms associated with nuclear reprogramming. In this study, a valuable transcriptome recourse of SCNT embryos was firstly established, which derived from different inter-/intra donor cells. The gene co expression analysis identified 26 cell-specific modules, and a series of regulatory pathways related to reprogramming barriers were further enriched. Compared to the intra-SCNT embryos, the inter-SCNT embryos underwent only complete partially reprogramming. As master genome trigger genes, the transcripts related to TFIID subunit, RNA polymerase and mediators were incomplete activated in inter-SCNT embryos. The inter-SCNT embryos only wasted the stored maternal mRNA of master regulators, but failed to activate their self-sustained pathway of RNA polymerases. The KDM family of epigenetic regulator also seriously delayed in inter-SCNT embryo reprogramming process. Our study provided new insight into understanding of the mechanisms of nuclear reprogramming. PMID- 29029478 TI - Effects of exercise on capillaries in the white matter of transgenic AD mice. AB - Previous studies have shown that exercise can prevent white matter atrophy in APP/PS1 transgenic Alzheimer's disease (AD) mice. However, the mechanism of this protective effect remains unknown. To further understand this issue, we investigated the effects of exercise on the blood supply of white matter in transgenic AD mice. Six-month-old male APP/PS1 mice were randomly divided into a control group and a running group, and age-matched non-transgenic littermates were used as a wild-type control group. Mice in the running group ran on a treadmill at low intensity for four months. Then, spatial learning and memory abilities, white matter and white matter capillaries were examined in all mice. The 10-month-old AD mice exhibited deficits in cognitive function, and 4 months of exercise improved these deficits. The white matter volume and the total length, total volume and total surface area of the white matter capillaries were decreased in the 10-month-old AD mice, and 4 months of exercise dramatically delayed the changes in these parameters in the AD mice. Our results demonstrate that even low-intensity running exercise can improve spatial learning and memory abilities, delay white matter atrophy and protect white matter capillaries in early-stage AD mice. Protecting capillaries might be an important structural basis for the exercise-induced protection of the structural integrity of white matter in AD. PMID- 29029479 TI - The genetically engineered drug rhCNB induces apoptosis via a mitochondrial route in tumor cells. AB - The calcineurin B subunit (CNB) has antitumor activity. We showed previously that recombinant human CNB (rhCNB) also had strong anti-tumor activity in vivo, and was thus a promising candidate anti-tumor drug. It appeared to kill tumor cells via immunomodulation. Here, we show that rhCNB inhibits the proliferation of human hepatoma HepG-2 cells, resulting in their apoptosis. Exogenous CNB was found to localize to mitochondria in tumor cells and activate the mitochondrial apoptosis pathway, as indicated by a decrease of mitochondrial transmembrane potential, release of cytochrome C and activation of caspase-9, which then activates caspase-3. At the same time Bcl-2 &Bcl-xL expression decreased, Bim expression increased, and Bax was activated. Interaction between rhCNB and Bcl-xL was detected, which may inhibit the function of Bcl-xL. Long-term tumor targeting was also observed in nude mice. These data deepened our understanding of the anti tumor mechanism of rhCNB and provided guidance for its drug development. PMID- 29029480 TI - Small molecule CP-31398 induces reactive oxygen species-dependent apoptosis in human multiple myeloma. AB - Reactive oxygen species (ROS) are normal byproducts of a wide variety of cellular processes. ROS have dual functional roles in cancer cell pathophysiology. At low to moderate levels, ROS act as signaling transducers to activate cell proliferation, migration, invasion, and angiogenesis. In contrast, high levels of ROS induce cell death. In multiple myeloma (MM), ROS overproduction is the trigger for apoptosis induced by several anticancer compounds, including proteasome inhibitors. However, no drugs for which oxidative stress is the main mechanism of action are currently used for treatment of MM in clinical situations. In this study, we demonstrate that the p53-activating small molecule CP-31398 (CP) effectively inhibits the growth of MM cell lines and primary MM isolates from patients. CP also suppresses the growth of MM xenografts in mice. Mechanistically, CP was found to induce intrinsic apoptosis in MM cells via increasing ROS production. Interestingly, CP-induced apoptosis occurs regardless of the p53 status, suggesting that CP has additional mechanisms of action. Our findings thus indicate that CP could be an attractive candidate for treatment of MM patients harboring p53 abnormalities; this satisfies an unmet clinical need, as such individuals currently have a poor prognosis. PMID- 29029481 TI - Cell cycle specific radiosensitisation by the disulfiram and copper complex. AB - The disulfiram and copper complex (DSF:Cu) has emerged as a potent radiosensitising anti-cancer agent. The ability of copper to stabilise DSF in a planar conformation and to inhibit DNA replication enzymes stimulated our investigation of the effect of DSF:Cu on cell cycle regulation. Flow cytometry and immunoblotting were used to assess the effect of DSF:Cu on cell cycle progression of the neuroblastoma cell line SK-N-BE(2c) and the glioma cell line UVW. Treatment with 0.1 and 0.3 MUM DSF:Cu inhibited DNA synthesis in SK-N-BE(2c) and UVW cells, respectively. The increased potency of ionising radiation treatment induced by DSF:Cu and/or gemcitabine was determined by clonogenic assay. Treatment with 0.3 MUM DSF:Cu resulted in greater radiation kill, exemplified by dose enhancement factor values of 2.64 and 2.84 in SK-N-BE(2c) and UVW cells, respectively. Although DSF:Cu failed to sensitise S phase cells to irradiation, we observed that DSF:Cu radiosensitisation was potentiated by the S phase-specific cytotoxic drug gemcitabine. The efficacy of the combination treatment consisting of DSF:Cu, gemcitabine and ionising radiation was schedule dependent. Together, these results describe cell cycle specific radiosensitisation by DSF:Cu. The well-established toxicity profiles of DSF and gemcitabine should facilitate their evaluation as a combination treatment in patients undergoing radiotherapy. PMID- 29029482 TI - In vivo immuno-targeting of an extracellular epitope of membrane bound preferentially expressed antigen in melanoma (PRAME). AB - Preferentially Expressed Antigen in Melanoma (PRAME) is a cancer/testis antigen that is overexpressed in a broad range of malignancies, while absent in most healthy human tissues, making it an attractive diagnostic cancer biomarker and therapeutic target. Although commonly viewed as an intracellular protein, we have demonstrated that PRAME has a membrane bound form with an external epitope targetable with conventional antibodies. We generated a polyclonal antibody (Membrane associated PRAME Antibody 1, MPA1) against an extracellular peptide sequence of PRAME. Binding of MPA1 to recombinant PRAME was evaluated by Enzyme Linked Immunosorbent Assay (ELISA). Flow cytometry and confocal immunofluorescence microscopy of MPA1 was performed on multiple tumor cell lines. Reverse Transcription Polymerase Chain Reaction (RT-PCR) for PRAME was conducted to compare protein and transcriptional expression levels. We demonstrated a robust proof-of-concept for PRAME targeting in vivo by radiolabeling MPA1 with zirconium-89 (89Zr-DFO-MPA1) and demonstrating high specific uptake in PRAME expressing tumors. To our knowledge, this is the first time a cancer testis antigen has been targeted using conventional antibody technologies. Thus, PRAME can be exploited for multiple clinical applications, including targeted therapy, diagnostic imaging and treatment guidance in a wide-range of malignancies, with minimal off-target toxicity. PMID- 29029484 TI - YBX1 promotes tumor growth by elevating glycolysis in human bladder cancer. AB - Aerobic glycolysis, also known as Warburg effect, is a key hallmark of cancers. The Y-box-binding protein 1 (YBX1) is a well-known oncoprotein implicated in multiple malignant phenotypes of cancers. Meanwhile, little is known about the oncogenic functions and mechanisms of YBX1 in bladder cancer. Based on gene set enrichment analysis (GSEA) of TCGA RNAseq data, we find that YBX1 was profoundly involved in the glycolysis part of glucose metabolism. Loss- and gain-of-function studies show that YBX1 can enhance glycolysis as revealed by expression of glycolytic enzymes, glucose uptake, lactate secretion and extracellular acidification rate (ECAR). Inhibition of glycolysis completely compromises the tumor-promoting effect of YBX1 on tumor growth. Mechanistically, YBX1 regulates the expression of c-Myc and HIF1alpha, which further upregulate glycolytic enzymes to facilitate glycolysis. Moreover, in vivo study further confirms that genetic silencing of YBX1 markedly attenuates tumor growth and this tumor suppressive effect is largely dependent on reduced glycolysis. Taken together, these results, as a proof of principle, provide a novel insight into the oncogenic role of YBX1 in glycolysis and suggest the potential therapeutic strategy by targeting YBX1 in bladder cancer. PMID- 29029483 TI - The long noncoding RNA TUG1 acts as a competing endogenous RNA to regulate the Hedgehog pathway by targeting miR-132 in hepatocellular carcinoma. AB - Emerging evidence shows that the Hedgehog pathway and the long noncoding RNA TUG1 play pivotal roles in cell proliferation, migration, and invasion in tumors. However, the mechanism underlying the effect of TUG1 and the Hedgehog pathway in hepatoma remains undefined. In the present study, we showed that the expression of TUG1 was negatively correlated with that of microRNA (miR)-132, and depletion of TUG1 inhibited the activation of the Hedgehog pathway in vitro and in vivo. We showed that TUG1 functions as a competing endogenous (ceRNA) by competing with miR-132 for binding to the sonic hedgehog protein in HCC, thereby suppressing the activation of Hedgehog signaling and its tumorigenic effect. These data indicate that targeting the TUG1-miR132-Hedgehog network could be a new strategy for the treatment of HCC. PMID- 29029485 TI - FZD7 is a novel prognostic marker and promotes tumor metastasis via WNT and EMT signaling pathways in esophageal squamous cell carcinoma. AB - Frizzled (FZD) proteins are receptors for secreted WNT proteins and play a critical role in the malignant progression of various cancers. However, the role of human FZD family members in esophageal squamous cell carcinoma (ESCC) was rarely investigated. In this study, we found that the FZD7 gene was the most commonly up-regulated FZD member in ESCC cell lines compared with other FZDs. TMA studies further validated that FZD7 protein was up-regulated in 165 of 252 (65.5%) informative ESCC patients and significantly correlated with poor overall survival (P=0.001). Additionally, multivariate Cox regression analysis showed that FZD7 overexpression was an independent prognostic factor for ESCC patients. Ectopic expression of FZD7 could promote ESCC cell metastasis both in vitro and in vivo. Under WNT3A stimulation, FZD7 was able to induce the nuclear translocation of beta-catenin and activate the downstream targets of WNT/beta catenin signaling, as well as promote epithelial-mesenchymal transition (EMT) potential in ESCC cells. Our study demonstrated for the first time that FZD7 contributes to the malignant progression of ESCC and represents a novel prognostic marker and a potential therapeutic target for ESCC patients. PMID- 29029486 TI - EGF stimulates glioblastoma metastasis by induction of matrix metalloproteinase-9 in an EGFR-dependent mechanism. AB - Epidermal growth factor (EGF) and EGF receptor (EGFR) play prominent roles in the metastasis of glioblastoma (GBM). However, the molecular mechanisms for the function of EGF and EGFR in GBM metastasis have not been elucidated. Herein, we demonstrate that coactivation of EGF and EGFR drives tumor metastasis in a matrix metalloproteinase-9 (MMP-9)-dependent manner. Expression levels of EGF, EGFR, and MMP-9 were substantially upregulated in the GBM and edema zones of patients, compared with those of paired unaffected participants. Secretion of EGF and MMP-9 was reduced in the cerebrospinal fluid (CSF) after removing GBM for 2 weeks by operation. To the mechanism, MMP-9 was upregulated by activating EGF and EGFR via PI3K/AKT- and ERK1/2-dependent pathways. Moreover, signal transducer and activator of transcription (STAT) 3 and STAT5 mediated the activation of NF kappaB by PI3K/AKT and ERK1/2 pathways. This resulted in transactivation of MMP-9 in GBM. Finally, MMP-9 induction facilitated abnormal proliferation, migration, and invasion of cells, which contributed to GBM metastasis. PMID- 29029487 TI - Prognostic factors and outcomes of primary transitional cell carcinoma of the ureter: a population-based study. AB - OBJECTIVE: This study investigated the prognostic factors and outcomes of a large observational cohort of patients with primary transitional cell carcinoma of the ureter, which was obtained from the Surveillance, Epidemiology, and End Results database. METHODS: We used the Surveillance, Epidemiology, and End Results program to identify 1910 patients who had available clinical and follow-up information and were diagnosed for primary transitional cell carcinoma of the ureter between 2004 and 2013. Descriptive statistics were used to explore the epidemiology, treatment practices, and tumor characteristics of the patients. Univariate and multivariable Cox regression models were used to analyze the patient data. RESULTS: The median overall survival (OS) was 46 months, and the 5 year OS rate was 41.8%. The median CSS was 78 months, and the 5-year CSS rate was 54.3%. Multivariate analysis identified tumor grade, tumor size, AJCC stage, M stage, cancer-directed surgical procedure and radiation as independent factors of primary transitional cell carcinoma of the ureter. For early stage patients, the surgical procedure was associated with fairly longer survival and additional radiation may cause more harm than benefit. Meanwhile, for advanced stage patients, the impact of surgery on OS and CSS greatly decreased. Radiation exerted a very limited impact on clinical outcomes. Patients with bad tumor differentiation or a large tumor size were more likely to have advanced stage disease. CONCLUSION: Durable cancer control can be expected in patients treated with surgery for early stage UTUC. The presence of advanced stage disease exerts a profound detrimental effect on the survival of patients. PMID- 29029488 TI - Integrated analysis of competing endogenous RNA network revealing lncRNAs as potential prognostic biomarkers in human lung squamous cell carcinoma. AB - Accumulating evidence shows the important role of long non-coding RNAs (lncRNAs) in competing endogenous RNA (ceRNA) networks for predicting survival in tumor patients. However, prognostic biomarkers for lung squamous cell carcinoma (LUSC) are still lacking. The objective of this study is to identify a lncRNA signature for evaluation of overall survival (OS) in 474 LUSC patients from The Cancer Genome Atlas (TCGA) database. A total of 474 RNA sequencing profiles in LUSC patients with clinical data were obtained, providing a large sample of RNA sequencing data, and 83 LUSC-specific lncRNAs, 26 miRNAs, and 85 mRNAs were identified to construct the ceRNA network (fold change>2, P<0.05). Among these above 83 LUSC-specific lncRNAs, 22 were assessed as closely related to OS in LUSC patients using a univariate Cox proportional regression model. Meanwhile, two (FMO6P and PRR26) of the above 22 OS-related lncRNAs were identified using a multivariate Cox regression model to construct a risk score as an independent indicator of the prognostic value of the lncRNA signature in LUSC patients. LUSC patients with low-risk scores were more positively correlated with OS (P<0.001). The present study provides a deeper understanding of the lncRNA-related ceRNA network in LUSC and suggests that the two-lncRNA signature could serve as an independent biomarker for prognosis of LUSC. PMID- 29029489 TI - Similar response profile to neoadjuvant chemotherapy, but different survival, in inflammatory versus locally advanced breast cancers. AB - : Inflammatory breast cancer (IBC) is a very aggressive form of breast cancer, as compared to locally advanced breast cancer (LABC). Neoadjuvant chemotherapy followed by surgery is the standard treatment in both cases. Whether IBC is less chemosensitive than LABC remains unclear. We retrospectively compared the rate of pathological complete response (pCR) to neoadjuvant chemotherapy in IBC and LABC. METHODS: Patients with IBC or LABC treated with neoadjuvant anthracycline-based chemotherapy followed by surgery were selected from our institutional database. The primary endpoint was the pCR rate, defined as absence of invasive tumor in breast and axillary lymph nodes. RESULTS: A total of 450 patients were included, 144 with IBC and 306 with LABC. The pCR rate was similar between the two groups, in the whole population (31%) and in each molecular subtype separately. Univariate analyses for pCR in IBC and LABC separately identified the same predictive variables, except the pathological type that was associated with pCR in LABC only, but not in IBC. IBC patients displayed shorter 5-year metastasis free survival and overall survival than LABC patients in the whole population (57% and 69% versus74% and 88% respectively), and in each molecular subtype separately. The IBC phenotype was an independent prognostic feature. Similarly, IBC patients displayed shorter 5-year loco-regional relapse-free survival than LABC patients (86% versus 95%). CONCLUSIONS: Similar pCR rates to chemotherapy were found in IBC and LABC, suggesting that IBC is not less chemosensitive than LABC. Survival was shorter in IBC, suggesting that the corresponding poorer prognosis is more due to a higher metastatic risk and/or other feature(s) than to a lesser chemosensitivity. PMID- 29029490 TI - 7-ketocholesterol and 27-hydroxycholesterol decreased doxorubicin sensitivity in breast cancer cells: estrogenic activity and mTOR pathway. AB - Hypercholesterolemia is one of the risk factors for poor outcome in breast cancer therapy. To elucidate the influence of the main circulating oxysterols, cholesterol oxidation products, on the cell-killing effect of doxorubicin, cells were exposed to oxysterols at a subtoxic concentration. When cells were exposed to oxysterols in fetal bovine serum-supplemented medium, 7-ketocholesterol (7 KC), but not 27-hydroxycholesterol (27-HC), decreased the cytotoxicity of doxorubicin in MCF-7 (high estrogen receptor (ER)alpha/ERbeta ratio) cells and the decreased cytotoxicity was restored by the P-glycoprotein inhibitor verapamil. 7-KC stimulated the efflux function of P-glycoprotein and reduced intracellular doxorubicin accumulation in MCF-7 but not in ERalpha(-) MDA-MB-231 and the resistant MCF-7/ADR cells. In MCF-7 cells, 7-KC increased the mRNA and protein levels of P-glycoprotein. The 7-KC-suppressed doxorubicin accumulation was restored by the fluvestrant and ERalpha knockdown. In a yeast reporter assay, the ERalpha activation by 7-KC was more potent than 27-HC. 7-KC, but not 27-HC, stimulated the expression of an ER target, Trefoil factor 1 in MCF-7 cells. When charcoal-stripped fetal bovine serum was used, both 7-KC and 27-HC induced Trefoil factor 1 expression and reduced doxorubicin accumulation in MCF-7 cells. 7-KC-reduced doxorubicin accumulation could be reversed by inhibitors of phosphatidylinositol 3-kinase, Akt, and mammalian target of rapamycin (mTOR). These findings demonstrate that 7-KC decreases the cytotoxicity of doxorubicin through the up-regulation of P-glycoprotein in an ERalpha- and mTOR-dependent pathway. The 7-KC- and 27-HC-elicited estrogenic effects are crucial in the P glycoprotein induction in breast cancer cells. PMID- 29029491 TI - BMI and serum lipid parameters predict increasing risk and aggressive prostate cancer in Chinese people. AB - OBJECTIVES: To determine if obesity and serum lipid parameters are associated with increased risk and more aggressive prostate cancer in Chinese population. MATERIALS AND METHODS: We conducted a retrospective cohort analysis including 3102 patients. Kruskal-Wallis test for continuous variables and the chi-squared tests for categorical variables were used for univariate comparison of the differences in patient characteristics across BMI categories between different groups. Odds ratios (OR) and 95% confidence intervals (CI) were estimated for the association between prostate cancer and the various patient characteristics. Multivariable Cox proportional hazards regression was performed to assess the risk of prostate cancer recurrence. RESULTS: 974 consecutive men were diagnosed as prostate cancer and 700 patients subsequently received radical prostatectomy immediately, and 1031 patients were pathologically diagnosed as biopsy negative. The level of low-density-lipoprotein cholesterol (LDL-c) and total cholesterol was significantly higher and the high-density-lipoprotein cholesterol (HDL-c) level is much lower in prostate cancer patients. Patients with low level of HDL c, who subsequently received radical prostatectomy, had increased risk of high risk disease. In addition, patients with normal weight were less likely to develop a biochemical recurrence. Combined analysis revealed that obese patients had significantly higher rates of PSA recurrence over time than nonobese patients. CONCLUSIONS: In our study, lipid parameters are supposed to be associated with prostate cancer risk and aggressiveness. Obese men are at increased risk of PSA recurrence after radical prostatectomy. PMID- 29029492 TI - GATA2 regulates the erythropoietin receptor in t(12;21) ALL. AB - The t(12;21) (p13;q22) chromosomal translocation resulting in the ETV6/RUNX1 fusion gene is the most frequent structural cytogenetic abnormality in children with acute lymphoblastic leukemia (ALL). The erythropoietin receptor (EPOR), usually associated with erythroid progenitor cells, is highly expressed in ETV6/RUNX1 positive cases compared to other B-lineage ALL subtypes. Gene expression analysis of a microarray database and direct quantitative analysis of patient samples revealed strong correlation between EPOR and GATA2 expression in ALL, and higher expression of GATA2 in t(12;21) patients. The mechanism of EPOR regulation was mainly investigated using two B-ALL cell lines: REH, which harbor and express the ETV6/RUNX1 fusion gene; and NALM-6, which do not. Expression of EPOR was increased in REH cells compared to NALM-6 cells. Moreover, of the six GATA family members only GATA2 was differentially expressed with substantially higher levels present in REH cells. GATA2 was shown to bind to the EPOR 5'-UTR in REH, but did not bind in NALM-6 cells. Overexpression of GATA2 led to an increase in EPOR expression in REH cells only, indicating that GATA2 regulates EPOR but is dependent on the cellular context. Both EPOR and GATA2 are hypomethylated and associated with increased mRNA expression in REH compared to NALM-6 cells. Decitabine treatment effectively reduced methylation of CpG sites in the GATA2 promoter leading to increased GATA2 expression in both cell lines. Although Decitabine also reduced an already low level of methylation of the EPOR in NALM-6 cells there was no increase in EPOR expression. Furthermore, EPOR and GATA2 are regulated post-transcriptionally by miR-362 and miR-650, respectively. Overall our data show that EPOR expression in t(12;21) B-ALL cells, is regulated by GATA2 and is mediated through epigenetic, transcriptional and post-transcriptional mechanisms, contingent upon the genetic subtype of the disease. PMID- 29029493 TI - Systemic immune-inflammation index predicts the clinical outcome in patients with nasopharyngeal carcinoma: a propensity score-matched analysis. AB - Systemic immune-inflammation index (SII), based on peripheral lymphocyte, neutrophil, and platelet counts, was recently investigated as a prognostic marker in several tumors. However, SII has not been reported in nasopharyngeal carcinoma (NPC). We evaluated the prognostic value of the SII in 327 patients with NPC. Univariate and multivariate analyses were calculated by the Cox proportional hazards regression model. The time-dependent receiver operating characteristics (ROC) curve was used to compare the discrimination ability for OS. PSM (propensity score matching) was carried out to imbalance the baseline characteristics. Our results showed that SII, PLR, NLR and MLR were all associated with OS in NPC patients in the Kaplan-Meier survival analysis. SII (HR: 2.26; 95% CI: 1.40-3.66; P=0.001), NLR (HR: 1.66; 95% CI: 1.08-2.53; P=0.020), and MLR (HR: 1.99; 95% CI: 1.17-3.39; P=0.011) were identified to be the independent prognostic factors. The AUC for SII was bigger than NLR, PLR and MLR for predicting survival in patients with NPC in 3 or 5-years. In the PSM analysis, SII remained an independent predictor for OS in NPC patients (HR=2.08, CI 1.22-3.55, P=0.007). SII is a novel, simple and inexpensive prognostic predictor for patients with NPC. The prognostic value of SII is superior to PLR, NLR and MLR. PMID- 29029494 TI - KRAS overexpression independent of RAS mutations confers an adverse prognosis in cytogenetically normal acute myeloid leukemia. AB - The prognostic value of RAS mutations has been systematically investigated in acute myeloid leukemia (AML). However, clinical significance of RAS expressions in AML remains poorly determined. To explore the clinical significance, we analyzed KRAS and NRAS expressions in 143 de novo AML patients by real-time quantitative PCR. KRAS and NRAS expressions were significantly up-regulated in AML patients. KRAS and NRAS mutations were identified in 4% (6/143) and 8% (12/143) of these patients, respectively. However, no significant association was observed between RAS mutations and expressions. High KRAS expression was associated with older age, higher white blood cells, and a tendency of higher platelets, whereas high NRAS expression was only correlated with older age. Complete remission (CR) rate and overall survival of AML patients were adversely affected by KRAS overexpression, but not NRAS overexpression. Multivariate analysis revealed that KRAS acted as an independent prognostic predictor in cytogenetically normal AML (CN-AML). Moreover, the prognostic value of KRAS expression was validated using the published data from Gene Expression Omnibus datasets. In the follow-up patients, KRAS expression rather than NRAS expression in CR time tended to decrease compared to newly diagnosis time, and both KRAS and NRAS expressions were significantly increased when in relapse time. Our findings revealed that RAS overexpression and mutations were common events in AML with potential therapeutic target value. KRAS overexpression independent of RAS mutations conferred an adverse prognosis in CN-AML. PMID- 29029496 TI - 177Lu-PSMA-617 radioligand therapy for a patient with lymph node metastatic prostate cancer. AB - Prostate specific membrane antigen (PSMA) is expressed in unfavorable prostate cancer. PSMA is basis for new diagnostics and theranostics. PET/CT using PSMA is more sensitive than choline PET/CT. 177Lu-PSMA radioligand therapy is mainly used for patients with end-stage prostate cancer. This report describes a patient with a third recurrence in lymph nodes. The recurrence was treated with 177Lu-PSMA radioligand therapy instead of chemotherapy with docetaxel. The effect was in part evaluated relative to that of two established salvage treatments. Prior salvage radiotherapy and abiraterone of the first and second recurrence in lymph nodes had given only a partial reduction of PSA. Nevertheless within five months of follow-up, 177Lu-PSMA radioligand therapy of the third recurrence in lymph nodes reduced PSA for a period to unmeasurable levels. 177Lu-PSMA radioligand therapy gave only mild adverse effects. In conclusion, for a patient with lymph node metastatic prostate cancer, 177Lu-PSMA-617 radioligand therapy had an attractive therapeutic profile. A follow-up study of similar patients is being planned. PMID- 29029495 TI - Metadherin promotes metastasis by supporting putative cancer stem cell properties and epithelial plasticity in pancreatic cancer. AB - Pancreatic ductal adenocarcinoma (PDAC) has a high metastatic potential. However, the mechanism of metastatic colonization in PDAC remains poorly understood. Metadherin (MTDH) has emerged in recent years as a crucial mediator of metastasis in several cancer types, although the biological role of MTDH in PDAC has not been investigated. Here, we demonstrated the functional roles of MTDH in PDAC progression, especially focusing on the metastatic cascade. In vitro studies showed that MTDH provides cancer stem cell (CSC) properties in metastatic PDAC cells and contributes to anoikis resistance with epithelial characteristics in PDAC cells. We also performed in vivo studies using both orthotopic transplantation and intra-portal vein injection as experimental models of liver metastasis to examine the function of MTDH at the metastatic site. MTDH knockdown dramatically reduced the incidence of liver metastases along with epithelial features in both experimental mouse models. Collectively, MTDH facilitates metastatic colonization with putative CSC and epithelial properties in PDAC cells. PDAC cells were transiently treated with TGF-beta1 to investigate the roles of MTDH on epithelial plasticity. Intriguingly, MTDH expression was negatively correlated with Twist1 expression during the Mesenchymal-Epithelial transition (MET) induction in metastatic PDAC cells. These results suggest that MTDH may contribute to MET induction via downregulation of Twsit1. Lastly, immunohistochemistry indicated that MTDH overexpression is closely associated with hematogenous metastasis and predicts poor prognosis in patients with PDAC. This is the first demonstration of MTDH function in PDAC metastatic colonization. Our data suggest that MTDH targeting therapy could be applied to control PDAC metastasis. PMID- 29029497 TI - Kras mutation is a marker of worse oncologic outcomes after percutaneous radiofrequency ablation of colorectal liver metastases. AB - BACKGROUND: Kras mutation has been associated with shorter overall survival and time to disease recurrence after resection of colorectal liver metastases (CLM). This study evaluated the prognostic value of Kras mutation in patients with CLM treated by percutaneous radiofrequency ablation (RFA). METHODS: This is an IRB waived retrospective analysis of the impact of KRAS mutation status on oncologic outcomes after CLM RFA. The endpoints were overall survival (OS), local tumor progression (LTP) rates, and incidence of new liver, lung, and peritoneal metastases. Survival times were calculated using Kaplan-Meier methodology from the time of RFA. RESULTS: The study enrolled 97 patients. Kras exon 2 mutation was detected in 39% (38/97) of patients. On univariate analysis, Kras mutation (P=0.016) (HR: 1.8; 95% CI: 1.1 - 2.9) was a significant predictor of OS and retained significance on multivariate analysis. Kras mutation was a significant predictor of new liver metastases (P=0.037) (SHR: 2.0; CI: 1.0-3.7) and peritoneal metastases (P=0.015) (sHR: 3.0; 95% CI: 1.2-7.2) on multivariate analysis. Kras mutation was a significant predictor of LTP after RFA of CLM ablated with margins of 1-5 mm (P=0.018) (SHR: 3.0; 95% CI: 1.2-7.7) with an LTP rate of 80% (12/15) versus 41% (11/27) for wild type. CONCLUSION: Kras mutation is a significant predictor of overall survival, new liver, and peritoneal metastases after RFA of CLM. A minimal radiographic ablation margin >= 6 mm is essential for local tumor control especially for mutant CLM. PMID- 29029498 TI - Diffusion-kurtosis imaging predicts early radiotherapy response in nasopharyngeal carcinoma patients. AB - In this prospective study, we analyzed diffusion kurtosis imaging (DKI) parameters to predict the early response to radiotherapy in 23 nasopharyngeal carcinoma (NPC) patients. All patients underwent conventional magnetic resonance imaging (MRI) and DKI before and after radiotherapy. The patients were divided into response (RG; no residual tumors; 16/23 patients) and no-response (NRG; residual tumors; 7/23 patients) groups, based on MRI and biopsy results 3 months after radiotherapy. The maximum diameter of tumors in RG and NRG patients were similar prior to radiotherapy (p=0.103). The pretreatment diffusion coefficient (D) parameters (Daxis, Dmean and Drad) were higher in RG than NRG patients (p=0.022, p=0.027 and p=0.027). Conversely, the pre-treatment fractional anisotropy (FA) and kurtosis coefficient (K) parameters (Kaxis, Kfa, Kmean, Krad and Mkt) were lower in RG than NRG patients (p=0.015, p=0.022, p=0.008, p=0.004, p=0.001, p=0.002). The Krad coefficient (0.76) was the best parameter to predict the radiotherapy response. Based on receiver operating characteristic curve analysis Krad showed 71.4% sensitivity and 93.7% specificity (AUC: 0.897, 95% CI, 0.756-1). Multivariate analysis indicated DKI parameters were independent prognostic factors for the short-term effect in NPC. Thus, DKI predicts the early response to radiotherapy in NPC patients. PMID- 29029499 TI - Generation and characterization of ErbB2-CAR-engineered cytokine-induced killer cells for the treatment of high-risk soft tissue sarcoma in children. AB - Pediatric patients with recurrent, refractory or advanced soft tissue sarcoma (STS) who are simultaneously showing signs of cumulative treatment toxicity are in need of novel therapies. In this preclinical analysis, we identified ErbB2 as a targetable antigen on STS cells and used cytokine-induced killer (CIK) cells transduced with the lentiviral 2nd-generation chimeric antigen receptor (CAR) vector pS-5.28.z-IEW to target ErbB2-positive tumors. Solely CIK cell subsets with the CD3+ T cell phenotype showed up to 85% cell surface expression of the respective CAR. A comparison of wildtype (WT), mock-vector and ErbB2-CAR-CIK cells showed, that engineered cells exhibited diminished in vitro expansion, retained WT CIK cell phenotype with higher percentages of differentiated effector memory/effector cells. Activating natural killer (NK) cell receptor NKG2D restricted target cell recognition and killing of WT and ErbB2-CAR-CIK cells was maintained against ErbB2-negative tumors, while ErbB2-CAR-CIK cells demonstrated significantly increased cytotoxicity against ErbB2-positive targets, including primary tumors. ErbB2-CAR- but not WT CIK cells proliferated, infiltrated and efficiently lysed tumor cell monolayers as well as 3D tumor spheroids. Here, we demonstrate a potential cell therapeutic approach using ErbB2-CAR-CIK cells for the recognition and elimination of tumor cells expressing ErbB2, which we identified as a targetable antigen on high-risk STS cells. PMID- 29029500 TI - EDG2 enhanced the progression of hepatocellular carcinoma by LPA/PI3K/AKT/ mTOR signaling. AB - HCC is the leading type of the malignant liver tumors with the unsatisfied prognosis. Liver resection has been considered as the predominant curative therapy, however, the post-surgical prognostic evaluation remains an urgent problem and the mechanism of HCC metastases has not been understood completely. EDG2 has been found to accelerate tumor progression through mediating different cell pathways, however, it remains unclear about the role of EDG2 on hepatocarcinogenesis. Here, EDG2 expression was found increased notably in HCC tissues by immunohistochemistry compared with adjacent liver tissues and comparison of survival curves revealed that EDG2 upregulation in HCC tissues was associated with the worse prognosis after liver resection. The positive correlation between EDG2 up-regulation and EMT was observed in HCC samples. Furthermore, EDG2 over-expression in HCC cells brought the typical EMT characteristics including up-regulation of Vimentin, Fibronectin and N-cadherin, suppression of E-cadherin, and enhanced cell migration and invasion capacities. Knockdown of EDG2 reversed the EMT phenotype in HCC cells. The in vivo experiments also identified the oncogenic role of EDG2 on HCC growth. The mechanistic studies elucidated that EDG2 enhanced mTOR phosphorylation via PI3K/AKT signaling and consequently induced EMT of HCC cells. Moreover, EDG2 was found to promote cell viability and proliferation of HCC cell through PI3K/AKT/mTOR/Skp2/p27Kip1 signaling. Taken together, the data here demonstrated EDG2 was a potential predictor for HCC patients receiving liver resection and accelerated HCC progression via regulating EMT driven by PI3K/AKT/mTOR signaling. PMID- 29029501 TI - Metformin and endometrial cancer survival: a quantitative synthesis of observational studies. AB - Metformin has been reported to have anticancer effect and can affect patient survival in several malignancies. However, the results are inconclusive for endometrial cancer. Hence, we conducted a systematic review and meta-analysis to investigate the prognostic role of metformin in patients with endometrial cancer. Studies were identified from Pubmed and Embase database through March 2017. Observational studies reporting hazard ratios (HRs) with 95% confidence intervals (CIs) for overall survival (OS) and progression-free survival (PFS) were selected. Data were abstracted and summarised using random-effects models. From 250 unique citations, we identified ten studies including 6242 patients with nine studies examining OS and five studies examining PFS. Meta-analysis demonstrated that metformin users had better OS (HR, 0.58; 95% CI, 0.45 to 0.76; P = 0.207, I2 = 26.6%) and PFS (HR, 0.61; 95% CI, 0.49 to 0.76; P =0.768, I2 = 0%) than non users for endometrial cancer patients. Similar findings were observed using sensitivity analysis adjusted by trim and filled methods (HR, 0.47; 95% CI, 0.37 to 0.58) and subgroup analyses. Based on the current evidence, we find that metformin use is associated with better OS and PFS in patients with endometrial cancer. However, further large-scale prospective studies are needed to establish its validity. PMID- 29029502 TI - Clinicopathologic implications of the miR-197/PD-L1 axis in oral squamous cell carcinoma. AB - Immune escape of a tumor from tumor-infiltrating lymphocytes (TILs) is induced by PD-L1, which is suppressed by miR-197. We investigated the clinicopathologic implications of the miR-197/PD-L1 axis and its effects on TILs and the clinicopathologic features of oral squamous cell carcinoma (OSCC). We used RT-PCR and immunohistochemistry in 68 OSCC patients to analyze the correlations between tumoral expression of miR-197 and PD-L1 and the degree of tumoral invasion by TILs (CD3+, CD4+, CD8+, PD-1+, FoxP3+, and CD20+ lymphocytes). PD-L1 levels correlated inversely with miR-197 but correlated positively with TILs. The aggressive features of OSCC, including high stage, angiolymphatic invasion, perineural invasion, and death, were associated with TIL depletion. High T stage (T4) tumors also had low PD-L1 but had high miR-197 expression. In a univariate survival analysis of the full cohort, high miR-197 was associated with poor overall survival, whereas high PD-L1 expression (2+) associated with good overall survival. In a multivariate analysis stratified based on miR-197 (median), high PD-L1 expression (2+) was an independent favorable prognostic factor for overall survival (P = 0.040) in the miR-197high subgroup but not the miR-197low subgroup. These findings may have clinicopathologic implications for the miR-197/PD-L1 axis and TILs in OSCC. PMID- 29029503 TI - Slingshot-1L, a cofilin phosphatase, induces primary breast cancer metastasis. AB - Slingshot (SSH) is a member of the conserved family of cofilin phosphatases that plays a critical role in cell membrane protrusion and migration by transforming inactive phosphorylated cofilin to an active form. SSH-like protein 1 (SSH-1L) expression is detected in various types of tumors; insulin induces the phosphatases activity of SSH-1L in a phosphoinositide 3-kinase-dependent manner. However, little is known about the expression and role of SSH-1L in breast cancer. Here, we analyzed 295 human breast cancer tissue specimens for SSH-1L expression by immunohistochemistry. The correlation between SSH-1L level and patients' clinical characteristics was analyzed with Pearson's chi2 test. The function of SSH-1L was evaluated by gene knockdown and quantitative real-time polymerase chain reaction detection of cofilin expression in MDA-MB-231, MCF-7, and SK-BR-3 human breast cancer cell lines. SSH-1L expression was detected in 88.1% of tissue specimens by immunohistochemistry and was strongly associated with increased metastasis and mortality. Loss of SSH-1L expression decreased the nonphosphorylated, active form of cofilin in SK-BR-3 and MDA-MB-231 cell lines, which was associated with reduced cell motility. Accordingly, SSH-1L/cofilin signaling played a critical role in primary breast cancer metastasis and was a potential therapeutic target for breast cancer treatment. PMID- 29029504 TI - Interleukin 10 gene rs1800896 polymorphism is associated with the risk of prostate cancer. AB - Numerous studies have uncovered the association of Interleukin-10 (IL-10) gene rs1800896 polymorphism with the risk of prostate cancer (PCa); however, their conclusions were inconsistent. Therefore, we conducted this meta-analysis to evaluate the role of IL-10 rs1800896 polymorphism in the risk of PCa. 16 eligible studies in 15 articles involving 6,301 cases and 6,510 controls were identified by researching PubMed, Google, CNKI, and EMBASE up to April 1, 2017. Our results revealed that IL-10 rs1800896 polymorphism was associated with the decreased risk of PCa under the homozygous model. Subgroup analysis by ethnicity revealed that rs1800896 polymorphism decreased the risk of PCa among Caucasians. In conclusion, IL-10 gene rs1800896 polymorphism is associated with the decreased risk of PCa. Larger studies with more diverse ethnic populations are needed to confirm these results. PMID- 29029505 TI - The deubiquitinating enzyme USP5 promotes pancreatic cancer via modulating cell cycle regulators. AB - Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal solid tumors. With an overall five-year survival rate remaining below 6%, there is an explicit need to search for new molecular targets for therapeutic interventions. We undertook a barcode labelled short-hairpin (shRNA) library screen in pancreatic cancer cells in order to identify novel genes promoting cancer survival and progression. Among the candidate genes identified in this screen was the deubiquitinase USP5, which subsequent gene expression analyses demonstrated to be significantly upregulated in primary human pancreatic cancer tissues. Using different knockdown approaches, we show that expression of USP5 is essential for the proliferation and survival of pancreatic cancer cells, tested under different 2D and 3D cell culture conditions as well as in in vivo experiments. These growth inhibition effects upon knockdown of USP5 are mediated primarily by the attenuation of G1/S phase transition in the cells, which is accompanied by accumulation of DNA damage, upregulation of p27, and increased apoptosis rates. Since USP5 is overexpressed in cancer tissues, it can thus potentially serve as a new target for therapeutic interventions, especially given the fact that deubiquitinases are currently emerging as new class of attractive drug targets in cancer. PMID- 29029506 TI - Bitter melon extract inhibits breast cancer growth in preclinical model by inducing autophagic cell death. AB - Breast cancer is a major public health problem worldwide in women and current therapeutic strategies are not adequately effective for this deadly disease. We have previously shown the anti-proliferative activity of bitter melon extract (BME) in breast cancer cells. In this study, we observed that BME treatment induces autophagosome-bound Long chain 3 (LC3)-B and accumulates protein p62/SQSTM1 (p62) in breast cancer cells. Additionally, we observed that BME treatment in breast cancer cells increases phospho-AMPK expression and inhibits the mTOR/Akt signaling pathway. Subsequently, we demonstrated that BME feeding effectively inhibited breast cancer growth in syngeneic and xenograft mouse models. Further, we observed the increased p62 accumulation, induction of autophagy and apoptotic cell death in tumors from BME-fed animals. Taken together, our results demonstrate that BME treatment inhibits breast tumor growth, and this anti-tumor activity in breast cancer is, in part, mediated by induction of autophagy and modulation of the AMPK/mTOR pathway. The antitumor activity of BME by oral feeding in breast cancer models suggested the high potential for a clinical application. PMID- 29029507 TI - PIK3CA amplification and PTEN loss in diffused large B-cell lymphoma. AB - Although it has been known that PIK3CA was amplified and PTEN was deficient on protein level in DLBCL, the clinicopathological significance of PIK3CA and PTEN genetic change on DNA level hasn't been established. Here, in our present study, to understand the clinical significance of genetic status of PIK3CA and PTEN in DLBCL, fluorescent in-situ hybridization (FISH) was employed to evaluate the genetic change of PIK3CA and PTEN in clinical sample tissues consist of 205 cases. Incidentally, to understand the clinicopathological significance of genetic change of PIK3CA and PTEN, Cross-table analysis was used to analyze the association between genetic change of PIK3CA and PTEN versus clinicopathological variables available to us, including age, gender, size, location, international prognosis index, performance state, B-symptom, clinical stage, Extra nodal site, concentration of lactate dehydrogenase, therapeutic effects, treatment and overall prognosis. It was found that PIK3CA was amplified and PTEN was deficient on DNA level, the percentage of amplification and loss was 12.7% (26/205) and 12.2% (25/205), respectively. Additionally, no significant association was observed between genetic change of PIK3CA and PTEN versus clinicopathological variables available. Nor was the significant correlation found between loss of PTEN versus PIK3CA amplification. Our results suggest that PTEN deficiency and amplification of PIK3CA on DNA level was an event in the pathogenesis of DLBCL. PMID- 29029508 TI - Efficiency of low dosage apatinib in post-first-line treatment of advanced lung adenocarcinoma. AB - Chemotherapy is the standard treatment of in advanced lung adenocarcinoma patients without driver mutation. However, few drugs could be selected when diseases progressed after second-line treatment. As a small molecule inhibitor of vascular endothelial growth factor receptor-2 (VEGFR-2), apatinib was suggested mainly using in advanced gastric cancer. In this study, we showed the results of apatinib as second-line to fourth-line treatment in EGFR wild-type advanced lung adenocarcinoma patients. 16 EGFR wild-type advanced lung adenocarcinoma patients were administrated apatinib (250-500 mg/d) orally. 3 patients showed partial response and 8 patients showed stable diseases response to apatinib, with a medium progression-free survival (PFS) of 4.4 month (2-10 months). The objective remission rate (ORR) was 18.75%(3/16). The total disease control rate (DCR) was 68.75% (11/16). The main toxicities were hypertension, hand-foot syndrome, proteinuria and thrombocytopenia which were tolerable and manageable. So, apatinib might be an optional choice for post-first-line treatment of EGFR wild type advanced lung adenocarcinoma patients. PMID- 29029510 TI - Adenovirus-mediated delivery of Sema3A alleviates rheumatoid arthritis in a serum transfer induced mouse model. AB - Rheumatoid arthritis is a chronic autoimmune disease characterized by infiltration of inflammatory cells into the synovium and destruction of cartilage and bone. Macrophages, fibroblast-like synoviocytes (FLS), and osteoclasts are critical cells driving the pathogenesis of RA. Semaphorin 3A (Sema3A) is recently identified as an essential player in the bone homeostasis, however its role in RA progression especially in the macrophage polarization are poorly understood. In the present study, we found that Sems3A levels were significantly decreased in RA serum and synovial fluid compared to OA controls. There was a negative correlation between Sema3A levels and RA severity. Using in vitro cell cultures, we showed for the first time that Sema3A promoted IL-4 induced M2 macrophage polarization, whereas prohibited LPS/IFN-gamma induced M1 polarization. Sema3A inhibited VEGF-induced endothelial cells proliferation and migration, suppressed VEGF-mediated invasion and IL-6 production of FLS while stimulating their apoptosis. In addition, Sema3A retarded osteoclastogenesis. In vivo data demonstrated that Sema3A administration attenuated joint tissue damage and the severity of experimental arthritis. Our findings uncovered Sema3A as a promising diagnostic biomarker and novel prevention and treatment strategies in arthritis treatment. PMID- 29029509 TI - Establishment of oral squamous cell carcinoma cell line and magnetic bead-based isolation and characterization of its CD90/CD44 subpopulations. AB - In this study, we describe the establishment of the human papillomavirus 18 positive, stage II, grade 1, T2N0M0 head and neck tumor primary cell line derived from oral squamous cell carcinoma of a non-smoking patient by using two different protocols. Furthermore, a preparation of subpopulations derived from this primary cell line according to the cluster of differentiation molecules CD44/CD90 status using magnetic bead-based separation and their characterization was performed. Impedance-based real-time cell analysis, enzyme-linked immunsorbant assay (ELISA), wound-healing assay, flow-cytometry, gene expression analysis, and MTT assay were used to characterize these four subpopulations (CD44+/CD90-, CD44 /CD90-, CD44+/CD90+, CD44-/CD90-). We optimised methodics for establishement of primary cell lines derived from oral squamous cell carcinoma tissue samples and subsequent separation of mesenchymal (CD90+) and epithelial (CD90-) types of tumorous cells. Primary cell line prepared by using trypsin proteolysis was more viable than the one prepared by using collagenase. According to our results, CD90 separation is a necessary step in preparation of permanent tumor-tissue derived cell lines. Based on the wound-healing assay, CD44+ cells exhibited stronger migratory capacity than CD44- subpopulations. CD44+ subpopulations had also significantly higher expression of BIRC5 and SOX2, lower expression of FLT1 and IL6, and higher levels of basal autophagy compared to CD44- subpopulations. Furthermore, co-cultivation experiments revealed that CD44-/CD90+ cells supported growth of epithelial tumor cells (CD44+/CD90-). On the contrary, factors released by CD44+/CD90+ type of cells seem to have rather inhibiting effect. The most cisplatin-resistant subpopulation with the shortest doubling time was CD44 /CD90+, but this subpopulation had a low migratory capacity. PMID- 29029511 TI - Mesenchymal stromal cells promote B-cell lymphoma in lacrimal glands by inducing immunosuppressive microenvironment. AB - Mesenchymal stromal cells (MSCs) have therapeutic potential for various diseases because of their anti-inflammatory and immunosuppressive properties. However, the immunosuppressive microenvironment allows tumor cells to evade immune surveillance, whereas maintenance of inflammation is required for tumor development and progression. Hence, MSCs may promote or suppress tumors in a context-dependent manner. We here investigated the effects of bone marrow-derived MSCs in a murine model of lacrimal gland B-cell lymphoma. Co-injection of MSCs with B lymphoma cells enhanced tumor growth in lacrimal glands without long-term engraftment. Of note, MSCs induced greater infiltration of immune and immune regulatory cells near tumor: CD4+ cells, CD11b+ cells, CD4+Foxp3+ regulatory T cells and CD11b+Ly6C+Ly6G- myeloid-derived suppressor cells. Concurrently, there was up-regulation of immune-related molecules including TNF-alpha, IL-1beta, TGF beta1, and arginase in glands treated with MSCs. Apoptosis in tumor was less severe in mice treated with MSCs compared to those without MSCs; however, MSCs did not directly inhibit apoptosis of B lymphoma cells in an in vitro co-culture. Together, data demonstrate that MSCs create immunosuppressive milieu by recruiting regulatory immune cells and promote B-cell lymphoma growth in lacrimal glands. PMID- 29029512 TI - PD-L1 expression indicates favorable prognosis for advanced lung adenocarcinoma patients treated with pemetrexed. AB - Conventional chemotherapy for lung cancer exerts anti-tumor effects through cytotoxicity, and through immunologic regulation by reducing specific T cell subsets and inducing the expression of programmed death ligand 1 (PD-L1) on tumor cells. Even though pemetrexed has shown huge potential in combination with other targeted or immune therapies, there is still little information about the values of specific immune checkpoint markers for advanced lung adenocarcinoma treated with pemetrexed. In the present study, a total of 56 patients with advanced lung adenocarcinoma, who received pemetrexed-based chemotherapy, were included retrospectively. Immunohistochemistry was performed to assess PD-L1, programmed death 1 (PD-1), thymidylate synthase, and tumor infiltrating lymphocytes (TILs). In this cohort, the positive expression of PD-L1 and PD-1 were 26.8% and 33.9% respectively. PD-L1, PD-1, and thymidylate synthase expression were not significantly associated with any clinical features, while the expression of both PD-L1 and PD-1 were correlated with Ki-67 expression. Furthermore, the expression of PD-1 was significantly correlated with TILs. The progression-free survival (PFS) in patients with PD-L1+ specimens was significantly longer compared to PD L1- specimens. Moreover, PD-L1 expression was an independent protective factor for PFS, and the smoking status was an independent risk factor. PD-L1 expression was significantly associated with better prognosis for patients with pemetrexed based treatment. Our findings suggested that PD-L1 expression might be a favorable prognostic biomarker for pemetrexed-based regimen, which is a rationale for combining immunotherapy with chemotherapy for lung cancer. PMID- 29029513 TI - Development of mesenchymal subtype gene signature for clinical application in gastric cancer. AB - Previously, in the Asian Cancer Research Group (ACRG) project, we defined four distinct molecular subtypes in gastric cancer (GC). Mesenchymal (microsatellite stable with epithelial-to-mesenchymal transition phenotype, MSS/EMT) tumors showed the worst prognosis among all the subtypes. To develop a gene signature for predicting mesenchymal subtype GC, we conducted gene expression profiling using a NanoString assay in 70 ACRG specimens. The gene signature was validated in an independent set obtained from the prospective Adjuvant chemoRadioTherapy In Stomach Tumor (ARTIST) trial. The association between the mesenchymal subtype and survival was investigated. After cross-platform concordance test performed in 70 ACRG specimens, a 71-gene MSS/EMT signature was obtained. In the validation set, the gene signature predicted that 20 of 73 (27%) patients had mesenchymal tumors. Patients with mesenchymal subtype had diffuse GC, poorly-differentiated or signet ring cell carcinoma, and were microsatellite stable. The estimated hazard ratio for survival in patients with mesenchymal GC compared to those with non mesenchymal tumors was 2.262 (95% confidence interval, 1.410 to 3.636; P=0.001). The survival difference remained significant when the subtypes were analyzed according to clinical prognostic parameters. This study suggested that the NanoString-based 71-gene signature for mesenchymal subtype is a strong predictor of the outcome in patients with GC. PMID- 29029514 TI - Targeting of CCN2 suppresses tumor progression and improves chemo-sensitivity in urothelial bladder cancer. AB - Urothelial bladder cancer (UBC) is the most common urinary neoplasm in China. CCN family protein 2 (CCN2), a cysteine-rich matricellular protein, is abnormally expressed in several cancer types and involved in tumor progression or chemo resistance. However, detailed expression patterns and effects of CCN2 in UBC still remain unknown. We found that down-regulation of CCN2 suppressed proliferation, migration and invasion of UBC cells in vitro and targeting of CCN2 decelerated xenograft growth in vivo. When treated with mitomycin C (MMC), CCN2 scilencing UBC cells showed lower survival and higher apoptotic rates and these effects were probably mediated via inactivation of Akt and Erk pathways. We also demonstrated the clinical significance of CCN2 expression, which was higher in UBC tissues and associated with advanced tumor stage and high pathologic grade. Taken together, our data suggest that CCN2 is an oncogene in UBC and might serve as a matricellular target for improving chemotherapeutic efficacy. PMID- 29029515 TI - Discovery of NKCC1 as a potential therapeutic target to inhibit hepatocellular carcinoma cell growth and metastasis. AB - Metastasis is the essential cause for the high mortality of hepatocellular carcinoma (HCC). In order to investigate the mechanism of metastasis, and to discover therapeutic targets for HCC, the quantitative proteomic technique was applied to characterize the plasma membrane proteins of two HCC cell lines with low (MHCC97L) or high (MHCC97H) metastatic potentials. One of the plasma membrane proteins, sodium-potassium-chloride cotransporter 1 (NKCC1), was upregulated in MHCC97H cell line. Immunohistochemistry result in HCC patients showed that NKCC1 expression was associated with poor differentiation and microvascular invasion. Knockdown of NKCC1 via RNA interference reduced HCC cell proliferation and invasion abilities in vitro and in vivo, whereas over-expression of NKCC1 significantly increased HCC cell proliferation and invasion abilities in vitro and in vivo. Additionally, blocking NKCC1 activity with bumetanide attenuated the proliferation and invasion abilities of HCC cells in vitro and limited the HCC growth in vivo. Further results suggested that NKCC1 promotes the invasion ability via MMP-2 activity, and that the WNK1/OSR1/NKCC1 signal pathway might play roles in HCC metastasis. For the first time, our study demonstrated that NKCC1 plays a role in HCC metastasis, and could be served as a potential target to inhibit HCC cell growth and metastasis. PMID- 29029516 TI - The prognostic role of Sirt1 expression in solid malignancies: a meta-analysis. AB - Although many studies have discussed the association of abnormally expressed silent information regulator 1 (Sirt1) with the prognosis of patients with a variety of solid carcinomas, they failed to agree on whether excessive Sirt1 indicates a good or poor overall survival for the patients. We conducted the current meta-analysis to illustrate the prognostic value of Sirt1 in solid malignancies. Articles published before December 2016 were searched using Pubmed and Web of Science. The studies were selected for the meta-analysis based on certain criteria. A total of 7,369 cases from 37 studies were included, in which 48.6% of the patients overexpressed Sirt1. The overall survival (OS) and clinical features, such as age and TNM stage, were analyzed using RevMan 5.3 software. Sirt1 overexpression was significantly correlated with the OS (HR: 1.52, 95% CI: [1.23, 1.88], P = 0.0001), especially in liver cancer (HR: 1.78, 95% CI: [1.46, 2.18], P < 0.00001) and lung cancer (HR: 1.80, 95% CI: [1.06, 3.05], P = 0.03), which suggested that the overexpression of Sirt1 indicates poor prognosis of patients with solid cancers. PMID- 29029517 TI - Prognostic value of HPV DNA status in cervical cancer before treatment: a systematic review and meta-analysis. AB - BACKGROUND: Human papillomavirus (HPV), has been recognized as an vital preliminary event in the oncogenesis of cervical cancer. But the prognostic value is not well defined, because of past studies showing conflicting results. So we conducted this meta-analysis to evaluate whether HPV DNA status was associated with prognosis in cervical cancer. MATERIALS AND METHODS: A total of 17 previously published eligible studies including 2,838 cases were identified and included in this meta-analysis. Positive HPV DNA was associated with good prognosis in patients with cervical cancer (overall survival [OS]: pooled hazard ratio (HR) = 0.610, 95% confidence interval (CI) = 0.457-0.814, P = 0.001; disease free survival [DFS]: pooled HR = 0.362, 95% CI = 0.252-0.519, P < 0.001). Furthermore, in subgroup analysis, the results revealed that the association between HPV DNA positive cervical cancers and better OS (pooled HR = 0.534, 95 % CI = 0.355-0.804, P = 0.003) in Mongoloid patients. Similarly, it existed in good OS (pooled HR = 0.628, 95 % CI 0.429-0.922, P = 0.017) and DFS (pooled HR = 0.355, 95% CI = 0.226-0.559, P < 0.001) in Caucasian patients. CONCLUSIONS: HPV DNA status in cervical cancer may be a useful prognostic biomarker before carcinomas are treated. However, larger sample sizes and more comprehensive studies are required in the future studies to verify our findings. PMID- 29029518 TI - Meta-analysis of the clinical characteristics and prognostic relevance of NOTCH1 and FBXW7 mutation in T-cell acute lymphoblastic leukemia. AB - The NOTCH1 signaling pathway is crucial for T-cell development, and NOTCH1 and/or FBXW7 mutations are frequently detected in T-cell acute lymphoblastic leukemia (T ALL). We performed a systematic review and meta-analysis of 18 randomized controlled trials (RCTs) to assess the prognostic impact of mutations in the NOTCH1 pathway. After retrieving relevant articles from PubMed, EMBASE, and the Cochrane Library, we investigated overall survival (OS) and event-free survival (EFS) with hazard ratios (HRs) using fixed-effects or random-effects models and conducted subgroup analyses based on population and mutation status. NOTCH1/FBXW7 mutations correlated significantly with better prognosis (5-year EFS: HR, 0.57; 95% confidence interval [CI], 0.46 to 0.68; P < 0.001 and 5-year OS: HR, 0.61; 95% CI, 0.51 to 0.74; P < 0.001). The HR for 5-year EFS and OS with NOTCH1 mutations were 0.63 (95% CI, 0.53 to 0.75) and 0.76 (95% CI, 0.60 to 0.95), respectively; with FBXW7 mutations, they were 0.82 (95% CI, 0.60 to 1.11) and 0.79 (95% CI, 0.55 to 1.12), respectively. However, differences between children and adults showed no significance. We conclude that the presence of NOTCH1/FBXW7 mutations is an independent prognostic factor for 5-year EFS and 5-year OS. PMID- 29029519 TI - Genetic polymorphisms in human UDP-glucuronosyltransferases 1A7 and the risk of gastrointestinal carcinomas: A systematic review and network meta-analysis. AB - OBJECTIVE: To identify the association between gastrointestinal carcinomas (GIC) risk and UDP-glucuronosyltransferases (UGTs) 1A7 polymorphisms through a systematic review and network meta-analysis. RESULTS: Seventeen studies were eligible, which included 7738 patients and 18 analyses. First, it was found that compared with non-cancer participants, UGT1A7*1 were significantly decreased in cancer patient groups, especially in hepatocellular carcinoma, colorectal carcinoma, and Asian population groups; UGT1A7*2 was significantly increased in hepatocellular carcinoma and Asian population groups; and UGT1A7*3 was significantly increased in hepatocellular carcinoma, colorectal carcinoma, Caucasian, and Asian population groups. Second, the UGT1A7 polymorphism alleles contrast model and the categorized UGT 1A7 genotypes were compared, and the outcomes revealed that the ratio of UGT1A7*3 vs *2 increased, which may indicate an increased risk for cancer, especially for the pancreatic carcinoma and Caucasian groups. The ratio of Intermediate vs Low increased as well, which may also indicate an increased risk for GIC. MATERIALS AND METHODS: PubMed, Embase, and the Cochrane library were searched for publications up until May 2017. First, the UGT 1A7 gene polymorphisms genotype in GIC patients were compared with a non cancer control group, and second, the UGT1A7 polymorphism alleles contrast model and UGT 1A7 genotypes categorized according to enzymatic activity were examined. CONCLUSIONS: There is a cancer risk associated with increased UGT1A7 *2 for the hepatocellular carcinoma and Asian groups and with increased UGT1A7 *3 for the hepatocellular carcinoma, colorectal carcinoma, Caucasian, and Asian groups. Moreover, in Caucasian patients with GIC, the ratio of UGT1A7 *3 vs *2 was increased. PMID- 29029520 TI - Prognostic role of intratumoral IL-17A expression by immunohistochemistry in solid tumors: a meta-analysis. AB - IL-17A is an important proinflammatory cytokine which is frequently elevated in tumor microenvironment. However, the role of intratumoral IL-17A in solid tumors remains controversial. Herein, we conducted a meta-analysis to assess the prognostic impact of intratumoral IL-17A in patients with solid tumor. PubMed and EBSCO were searched to identify the studies evaluating the associations between intratumoral IL-17A measured by immunohistochemistry (IHC) and overall survival (OS) and disease-free survival (DFS) in solid tumors. A total of 2972 patients with solid tumor from 21 published studies were incorporated into this meta analysis. We found that high level of intratumoral IL-17A was significantly associated with worse 3-year, 5-year OS and 1-year, 3-year DFS, but not with 1 year OS or 5-year DFS in solid tumors. In addition, in stratified analyses by cancer types, IL-17A overexpression was significantly associated with worse OS in hepatic carcinoma, but with improved OS in esophageal squamous cell carcinoma (ESCC). Furthermore, high IL-17A expression positively correlated with advanced TNM stage. In conclusion, High expression of intratumoral IL-17A leads to an unfavorable clinical outcome in majority of solid tumors, implicating IL-17A is a valuable biomarker for prognostic prediction of human solid malignances and targeting it may have a potential for effective treatment. PMID- 29029521 TI - Contrast-enhanced endoscopic ultrasound for differential diagnosis of pancreatic cancer: an updated meta-analysis. AB - AIM: We aim to assess the diagnostic value of contrast-enhanced endoscopic ultrasound (CE-EUS) for pancreatic cancer and inflammatory lesions by pooling current evidence. MATERIALS AND METHODS: A systematical search of PubMed, Web of Science and the Cochrane Library was performed from inception to January 2016. Two authors independently screened and extracted detailed data from included studies. A random effect model was adopted to estimate the pooled sensitivity, specificity in order to determine the diagnostic ablitity of CE-EUS. Furthermore, we conducted the meta-regression and subgroup analyses to explore possible heterogeneity. RESULTS: Eighteen eligible studies enrolling 1668 patients were finally included in the study. The pooled sensitivity of CE-EUS for distinguishing pancreatic cancers from solid inflammatory masses was 0.93 (95% CI, 0.91-0.94), and the specificity was 0.88 (95% CI, 0.84-0.90). The area under summary receiver operating characteristic curve yielded 0.97. No publication bias was observed by Deeks' funnel plot in current meta-analysis. CONCLUSIONS: We provided evidence that CE-EUS is a promising modality for differential diagnosis of pancreatic adenocarcinomas. Further multicenter prospective studies should be carried out to certify its utility. PMID- 29029522 TI - Circulating miRNAs as novel diagnostic biomarkers in hepatocellular carcinoma detection: a meta-analysis based on 24 articles. AB - The diagnostic value and suitability of circulating miRNAs for the detection of hepatocellular carcinoma have been inconsistent in the literature. A meta analysis is used to systematically evaluate the diagnostic value of circulating miRNAs. Eligible studies were selected and the heterogeneity was assessed by subgroup analysis, meta-regression, and publication bias. After strictly and comprehensive screening, the source methods, internal reference and the cut-off values of the included miRNAs were first listed. Circulating miRNAs demonstrated a relatively good diagnostic value in hepatocellular carcinoma, In the subgroup analysis, diagnosis odds ratio showed a higher accuracy with multiple miRNAs than with a single miRNA as well as with serum types than plasma types. In addition, although miRNAs have many expression patterns, the high frequency expression miRNAs (miR-21, miR-199 and miR-122) might be more specific for the diagnosis of hepatocellular carcinoma.The sources of heterogeneity might be related to the number of miRNAs and the specimen types in meta-regression. Furthermore, it's surprised that the pooled studies were first demonstrated publication bias (P < 0.05). In conclusion, multiple miRNAs in serum have a better diagnostic value, and the publication bias was stable. To validate the potential applicability of miRNAs in the diagnosis of hepatocellular carcinoma, more rigorous studies are needed to confirm these conclusions. PMID- 29029523 TI - Systematic review and meta-analysis of the utility of long non-coding RNA GAS5 as a diagnostic and prognostic cancer biomarker. AB - The growth arrest-specific 5 transcript (GAS5) is a long non-coding RNA (lncRNA) involved in the control of cell cycle progression and apoptosis in a wide variety of cells. To determine the clinical value of GAS5 expression in cancer patients, we performed a systematic review and meta-analysis exploring its association with the diagnosis, prognosis, and clinicopathological characteristics of cancer. Ten articles on prognosis, 15 on clinicopathology, and 5 on diagnosis were analyzed. Overall results showed that decreased GAS5 expression associated with unfavorable overall survival (OS) (HR = 2.50, 95%CI: 1.85-3.38, P < 0.001) and disease-free survival (DFS) (HR = 2.24, 95%CI: 1.58-3.18, P < 0.001) in several tumor types. Down-regulation of GAS5 correlated with poor recurrence-free survival (RFS) in hepatocellular carcinoma (HR = 2.40, 95%CI: 1.27-4.54, P = 0.007), and was associated with lymph node metastasis (OR = 1.92, 95% CI: 1.44-2.57, P < 0.001), distant metastasis (OR = 2.7, 95% CI: 1.05-6.97, P = 0.040), poor clinical stage (OR = 0.26, 95% CI: 0.18-0.38, P < 0.001), larger tumor size (OR = 3.21, 95% CI: 2.08-4.95, P < 0.001), and poor tumor differentiation (OR = 1.98, 95% CI: 1.40 2.80, P < 0.001). Pooled results of diagnostic data analysis showed that GAS5 exhibited a sensitivity of 0.76 and specificity of 0.64 for cancer diagnosis, and an area under the curve of 0.76 (95% CI: 0.72-0.80) indicated moderate diagnostic accuracy. This meta-analysis suggests GAS5 lncRNA may be a useful diagnostic and prognostic cancer biomarker, and may be especially useful for identifying patients prone to developing lymph node or distant metastasis. PMID- 29029524 TI - Comparative efficacy and safety of antibody induction therapy for the treatment of kidney: a network meta-analysis. AB - To evaluate the efficacy and safety of antibody induction therapies in kidney transplantation. Systematic literature searches were undertaken using MEDLINE, Embase, and Cochrane Library database from 1980 to 2016. Randomized controlled trials (RCTs) comparing three antibody induction therapies (alemtuzumab, interleukin-2 receptor antibodies and antithymocyte globulin) between each other were identified. Bayesian network meta-analysis was used to combine both the direct and indirect evidence on treatment efficacy and its safety. Antibody induction therapy studies, comprising of 18 RCTs (3444 kidney transplant recipients), were included. Overall, alemtuzumab treatment was superior to the ATG group (OR: 0.49, 95% CI: 0.32 to 0.71) and IL-2RAs group (OR: 0.36, 95% CI: 0.25 to 0.52) for reducing the 1-year acute rejection in kidney transplant recipients. Although alemtuzumab treatment was nearly same with ATG group and IL 2RAs group in improving patient survival and renal function, it can reduce the adverse effects of cytomegalovirus infection more efficiently than ATG group (OR: 0.59, 95% CI: 0.32 to 0.95) and IL-2RAs group (OR: 1.08, 95% CI: 0.61 to 1.73). Alemtuzumab was not associated with increased other adverse effects. Alemtuzumab treatment is safe and effective for kidney transplant recipients. No serious adverse effects were observed in trials or in general populations. PMID- 29029525 TI - Association between air pollution and cardiovascular mortality in China: a systematic review and meta-analysis. AB - Air pollutant levels in many Chinese cities remained significantly higher than the upper limits stated in World Health Organization guidelines. In light of limited evidence in China, we conducted a meta-analysis summarizing the association between acute exposure of air pollution and cardiovascular mortality. We searched PubMed, and CNKI databases etc. for literature published in English or Chinese up to January 2017. Outcomes were pooled and compared using random effects model. Excess risks (ERs) per 10 MUg/m3 increase in PM2.5, PM10, NO2, SO2 and O3 were evaluated. Subgroup analysis was conducted according to lag patterns (lags 0, 1, 2, 0-1, 0-2 days), gender (male vs. female), temperature (cool vs. warm) and age (< 65 vs. >= 65). Study bias was detected using Begg's and Egger's test. Of 299 articles identified, 30 met inclusion criteria. Each 10 MUg/m3 increase in the concentration was associated with a higher incidence of cardiovascular mortality for PM2.5 (0.68%, 95% CI: 0.39-0.97%), PM10 (0.39%, 95% CI: 0.26-0.53%), NO2 (1.12%, 95% CI: 0.76-1.48%), SO2 (0.75%, 95% CI: 0.42 1.09%), and O3 (0.62%, 95% CI: 0.33-0.92%), respectively. Air pollution conferred greater adverse impacts on cardiovascular mortality for longer duration of exposures. Strongest associations were seen for lag 0-1 day of exposure among all pollutants. Female, lower temperature, and age > 65 years were associated with greater risks of cardiovascular mortality for all pollutants. Higher concentrations of air pollutants correlated with a greater short-term increase in cardiovascular mortality. Further high-quality studies in China are urgently warranted to determine the susceptible population, which would offer reference for policy-making to minimize adverse health effects. PMID- 29029526 TI - Percutaneous coronary intervention using drug-eluting stents versus coronary artery bypass graft surgery in left main coronary artery disease an updated meta analysis of randomized clinical trials. AB - OBJECTIVES: To compare the safety and efficacy of percutaneous coronary intervention (PCI) using drug-eluting stent (DES) and coronary artery bypass graft (CABG) for the treatment of left main coronary artery (LMCA) disease. BACKGROUND: Several new randomized trials have recently examined the clinical outcomes of PCI and CABG in LMCA disease. However, the results of these studies were inconsistent. MATERIALS AND METHODS: We searched five online electronic databases to identify all the randomized clinical trials assessing the outcomes of PCI using DES and CABG in patients with LMCA. The clinical outcomes were the major adverse cardiac and cerebrovascular event (MACCE), all-cause death, myocardial infarction (MI), stroke, and repeat revascularization (RR). RESULTS: A total of 5 randomized clinical trials with 4595 LMCA patients were included in this meta-analysis. For one year follow-up, the results indicated that PCI were associated with a lower risk of stroke (RR = 0.21, 95% CI = 0.07-0.65, P = 0.007), a higher risk of RR (RR = 1.72, 95% CI = 1.28-2.33, P < 0.001) than CABG. Moreover, for long-term follow-up, there were significant higher risks of MACCE and RR with PCI versus CABG (MACCE: HR = 1.26, 95% CI = 1.11-1.44, P = 0.001; RR: HR = 1.70, 95% CI = 1.42-2.05, P < 0.001). However, there were no significant differences between the two groups in all-cause death and MI risks, regardless of follow-up duration. CONCLUSIONS: PCI is noninferior to CABG in short term follow up of patients with LMCA disease, but CABG is more safety and efficacy than PCI using DES in long-term follow-up. PMID- 29029527 TI - Targeted first-line therapies for advanced colorectal cancer: a Bayesian meta analysis. AB - BACKGROUND: Colorectal cancer is common and deadly. First-line treatments for patients with metastatic disease include FOLFIRI and FOLFOX, which have been combined with anti-EGFR or anti-VEGF antibodies to achieve benefit in selected populations. However, optimal therapy remains unclear. RESULTS: Fifteen publications on 10 trials were identified. There was a lack of decisive evidence that FOLFIRI or FOLFOX impact efficacy of either anti-EGFR or anti-VEGF, across mutational status groups. On the other hand, evidence suggests both anti-EGFR and anti-VEGF may be more effective for KRAS WT than MT patients. KRAS WT results provided evidence that anti-EGFR treatments may be more effective than anti-VEGF treatments when combined with FOLFIRI or FOLFOX. Further, evidence suggests that both anti-EGFR and anti-VEGF therapies, when combined with FOLFIRI or FOLFOX, may be harmful as compared to chemotherapy for KRAS MT patients. MATERIALS AND METHODS: Literature was searched for randomized trials comparing anti-EGFR or anti-VEGF antibodies, paired with FOLFIRI or FOLFOX, as first-line therapy for advanced colorectal cancer. Meta-estimates were generated via Bayesian hierarchical log-linear model. The primary endpoint was overall survival. CONCLUSIONS: Further studies examining impact of all-RAS mutation status, left or right side location of primary tumor, and combination anti-VEGF with modern bolus fluoropyrimidine are needed. PMID- 29029528 TI - Loss of heterozygosity on chromosome 16q increases relapse risk in Wilms' tumor: a meta-analysis. AB - Wilms' tumor (WT) is the most frequent malignant renal tumor in children. The survival rate is lower in patients with recurrence, and the factors that influence relapse in WT are not fully understood. Loss of heterozygosity on chromosome 16q (LOH 16q) has been reported to be associated with the relapse in WT, but this remains controversial. We performed a meta-analysis to clarify this. PUBMED, EMBASE, and the Cochrane Library were searched up to March 17, 2017. Ten studies involving 3385 patients were ultimately included in the meta-analysis. The meta-analysis showed that LOH 16q was significantly associated with the relapse in WT (relative risk [RR] = 1.74, 95% confidence interval [CI] = 1.43 2.13, P < 0.00001; hazard ratio [HR] = 1.76, 95% CI = 1.38-2.24, P < 0.00001). No significant heterogeneity among studies or publication bias was found. Sensitivity analysis showed omitting one study in each turn could not change the results. Subgroup analysis based on two studies indicated LOH 16q was more effective on elevated replase risk in patients with favorable-histology WT (RR = 2.52, 95% CI = 1.68-3.78, P < 0.00001; HR = 2.99, 95% CI = 1.84-4.88, P < 0.0001) but further work are needed to confirm this. These findings confirm that LOH 16q increased the relapse risk in WT, but more studies are required to further assess the association between LOH 16q and WT relapse among different subgroups. PMID- 29029529 TI - The roles of maspin expression in gastric cancer: a meta- and bioinformatics analysis. AB - Maspin is a mammary serine protease inhibitor that is encoded by human SERPINB5 gene, and inhibits invasion and metastasis of cancer cells as a tumor suppressor. We performed a systematic meta- and bioinformatics analysis through multiple online databases up to Feb 10, 2017. We found down-regulated maspin expression in gastric cancer, compared with normal mucosa and dysplasia (p < 0.05). Maspin expression was negatively correlated with depth of invasion, TNM staging and dedifferentiation of gastric cancer (p < 0.05). Nuclear maspin expression was higher in intestinal- than diffuse-type carcinoma (p < 0.05). An inverse association between maspin expression and unfavorable overall survival was found in patients with gastric cancer (p < 0.005). According to bioinformatics databases, SERPINB5 mRNA expression was higher in gastric cancer than normal tissues (p < 0.05), and negatively correlated with depth of invasion, TNM staging and dedifferentiation of gastric cancer (p < 0.05). According to KM plotter, we found that a higher SERPINB5 expression was positively correlated with overall and progression-free survival rates of all cancer patients, even stratified by aggressive parameters (p < 0.05). These findings indicated that maspin expression might be employed as a potential marker to indicate gastric carcinogenesis, subsequent progression, and even prognosis. PMID- 29029530 TI - Which treatment is preferred for advanced non-small-cell lung cancer with wild type epidermal growth factor receptor in second-line therapy? A meta-analysis comparing immune checkpoint inhibitor, tyrosine kinase inhibitor and chemotherapy. AB - BACKGROUND: The recommendations regarding the optimum treatment for advanced non small-cell lung cancer (NSCLC) patients with wild-type (WT) epidermal growth factor receptor (EGFR) tumors remain unclear. This meta-analysis was conducted to assess the efficacy among programmed death-ligand 1 (PD-L1)/programmed death-1 (PD-1) antibody, EGFR-tyrosine kinase inhibitors (TKI) and chemotherapy in second and third-line therapy. PATIENTS AND METHODS: Randomized trials investigating two of the three treatments were searched and included. Multiple treatments comparison and pairwise comparison were performed to assess overall survival (OS) and progression-free survival (PFS), expressed as hazard ratios (HRs). The effect of prespecified study-level characteristics was assessed by subgroup analysis and meta-regression. RESULTS: 12 randomized trials accruing 3341 advanced patients with WT EGFR tumors were analyzed. PD-1/PD-L1 antibody was associated with significantly longer OS and PFS than chemotherapy (OS: HR 0.67, 95% CrI 0.60 0.75; PFS: HR 0.83, 95% CrI 0.73-0.95) and TKI (OS: HR 0.59, 95% CrI 0.50-0.70; PFS: HR 0.75, 95% CrI 0.66-0.84) , while chemotherapy was associated with significantly longer OS (HR 0.88, 95% CrI 0.77-0.99) and PFS (HR 0.75, 95% CrI 0.66-0.84) than TKI. CONCLUSIONS: For advanced NSCLC patients with WT-EGFR tumors in second- or third-line therapy, PD-1/PD-L1 antibody appeared to be the most efficacious treatment, which was followed by chemotherapy. EGFR-TKI was worse than chemotherapy. PMID- 29029531 TI - Efficacy and safety of pramlintide injection adjunct to insulin therapy in patients with type 1 diabetes mellitus: a systematic review and meta-analysis. AB - AIMS: We aim to assess the efficacy and safety of pramlintide plus insulin therapy in patients with type 1 diabetes. METHODS: We included clinical studies comparing pramlintide plus insulin to placebo plus insulin. Efficacy was reflected by glycemic control and reduction in body weight and insulin use. Safety concerns were hypoglycemia and other adverse events. Subgroup analysis was performed for different doses (30, 60, 90 ug/meal) and durations (<=4, 26, 29, >29 weeks) of the treatment. RESULTS: A total of 10 randomized placebo-controlled studies were included for this meta-analysis (pramlintide, n=1978; placebo, n=1319). Compared with controls, patients given pramlintide had significantly lower HbA1c (p < 0.001), total daily insulin dose (p = 0.024), mean mealtime insulin dose (p < 0.001), body weight (p < 0.001) and postprandial glucose level (p = 0.002). The addition of pramlintide increased the incidence of nausea (p < 0.001), vomiting (p < 0.001), anorexia (p < 0.001) and hypoglycemia (p < 0.05) at the initiation of the treatment. The efficacy and adverse reactions of pramlintide were largely significant for the different doses and durations of the treatment. CONCLUSIONS: The addition of pramlintide to insulin therapy in patients with type 1 diabetes improves glycemic control and reduces insulin requirement and body weight while bringing transient hypoglycemia and digestive disorders. PMID- 29029532 TI - 11C-choline PET/CT and whole-body MRI including diffusion-weighted imaging for patients with recurrent prostate cancer. AB - PURPOSE: To compare the detection efficacy of 11C-choline positron emission tomography and computed tomography (PET/CT) with whole-body magnetic resonance imaging (MRI) including diffusion-weighted imaging (DWI) in patients with suspected recurrent prostate cancer. MATERIALS AND METHODS: Fifty-seven patients (mean age 68, range 54-80 years) underwent 11C-choline PET/CT and MRI using T1 weighted (T1w), short-tau inversion recovery (STIR), and DWI. Two readers visually rated suspicious lesions on a 5-point scale in 20 different regions. Clinical follow-up and histopathology served as the standard of reference (SOR). RESULTS: Fifty patients (mean PSA 29.9, range 1.0-670 ng/mL) had at least one positive lesion according to the SOR. Twenty-four patients had local recurrence (LR), 27 had lymph node (LN) involvement, and 22 had bone metastases. The overall detection rates for PET/CT and MRI on a patient basis were 94% and 88%, respectively (p = 0.07). The PSA level (>2 ng/mL vs <=2 ng/mL) significantly influenced the overall performance of PET/CT (p = 0.003) and MRI (p = 0.03). PET/CT was significantly superior to MRI in detecting LR (p = 0.03) and bone metastasis (p = 0.02). We found no difference with respect to the detection of LN metastasis (p = 0.65). CONCLUSION: 11C-choline PET/CT was superior in the detection of local recurrence and bone metastasis on a regional basis. Whole-body MRI including DWI showed similar diagnostic accuracy only for detecting lymph node metastases. Compared with 11C-choline PET/CT, therefore, whole-body MRI including DWI cannot serve as alternative imaging modality for restaging prostate cancer. PMID- 29029533 TI - The immune impact of mimic endoscopic retrograde appendicitis therapy and appendectomy on rabbits of acute appendicitis. AB - This study was conducted to evaluate the immune impact of mimic endoscopic retrograde appendicitis therapy and appendectomy on rabbits of acute suppurative appendicitis and to determine whether TLR4/MYD88/NF-kappaB signaling pathway was activated in this process. 48 rabbits were assigned into 4 groups: group I, the mimic endoscopic retrograde appendicitis therapy group; group II, the appendectomy group; group III, the model group; and group IV, the blank group. White blood cells decreased, while levels of C-reactive protein, tumor necrosis factor-alpha, interleukin-6, interleukin-4, and interleukin-10 increased on the 2nd day in group I and II. IgA in feces decreased at 2 weeks, while fecal microbiota changed at 2 and 4 weeks after appendectomy. CD8+ cells in appendix of group I increased within 8 weeks. Upregulated expression of TLR4, MYD88, and nuclear NF-kappaB were detected on the 2nd day in group I and II. Mimic endoscopic retrograde appendicitis therapy and appendectomy are effective ways for acute suppurative appendicitis. Mimic endoscopic retrograde appendicitis therapy was more preferable due to its advantage in maintaining intestinal immune function. TLR4/MYD88/NF-kappaB signaling pathway was activated in acute phase of appendicitis. PMID- 29029535 TI - Leucine-rich alpha-2-glycoprotein-1, relevant with microvessel density, is an independent survival prognostic factor for stage III colorectal cancer patients: a retrospective analysis. AB - BACKGROUND: Leucine-rich alpha-2-glycoprotein-1 (encoded by LRG1) has been shown to be involved in multiple cancer progression and angiogenesis. LRG1 has been shown to be one of the five plasma proteins that can be used for colorectal cancer (CRC) diagnosis. The objective of the current study was to explore relationship between LRG1 protein expression and microvessel density (MVD) in stage III CRC. METHODS: A single-center retrospective analysis of all stage III CRC who underwent surgery and adjuvant chemotherapy was carried out. LRG1 and CD34 were tested in tumor tissues by immunohistochemistry (IHC). RESULTS: LRG1 protein expression was significantly associated with MVD (P <0.001) and other clinicopathological parameters, including T stage (P=0.028), differentiation (P=0.035) and vascular invasion (P=0.007). Cox multivariate regression analysis showed that LRG1 protein expression was an independent poor predictive factor for both disease-free and overall survival. CONCLUSION: LRG1 protein expression can be used as a prognostic marker for stage III CRC along with its use as a diagnostic marker for CRC in general. PMID- 29029534 TI - Is preoperative chronic kidney disease status associated with oncologic outcomes in upper urinary tract urothelial carcinoma? A multicenter propensity score matched analysis. AB - PURPOSE: The aim of this study was to determine the effect of preoperative chronic kidney disease (CKD) on the prognosis of patients with upper urinary tract urothelial carcinoma (UTUC) who had undergone radical nephroureterectomy (RNU). RESULTS: The median follow-up period was 31.1 months (interquartile range: 16.2-55.7 months). Among the study patients, 224 patients in the non-CKD group were selected via propensity score matching. The median recurrence-free, cancer specific, and overall survival were significantly shorter for patients with preoperative CKD than for non-CKD patients (p = 0.001, p = 0.001, and p = 0.001, respectively). According to multivariable Cox regression analysis, preoperative CKD was related to worse recurrence-free (hazard ratio [HR]: 1.81, 95% confidence interval [CI]: 1.15-2.86, p = 0.011), cancer-specific (HR: 2.44, 95% CI: 1.44 4.14, p = 0.001), and overall survival (HR: 1.66, 95% CI: 1.15-2.40, p = 0.007). METHODS: A total of 566 patients who underwent RNU at 6 institutions from 2004 to 2014 were retrospectively reviewed. Of these patients, 342 had an estimated glomerular filtration rate (eGFR) >= 60 ml/min/1.73 m2 (non-CKD group) and 224 patients had an eGFR <60 ml/min/1.73 m2 (CKD group). To adjust for potential baseline confounders, 224 patients in the non-CKD group were selected by propensity matching. Clinicopathological variables and survival rates were compared between the 2 groups. CONCLUSIONS: Preoperative CKD appears to be an important independent prognostic factor for oncologic outcomes in patients with UTUC. PMID- 29029536 TI - The optimal chemotherapeutic regimen in D2-resected locally advanced gastric cancer: a propensity score-matched analysis. AB - Adjuvant chemotherapy using TS-1 or capecitabine plus oxaliplatin improves survival outcomes after radical gastrectomy, with both regimens showing similar efficacies. A total of 494 patients with stage II-III gastric cancer who underwent curative D2 gastrectomy and received adjuvant chemotherapy from April 2004 to June 2014 were included in this study. 219 patients received TS-1, and 275 received platinum-based chemotherapy. The disease-free survival associated with adjuvant chemotherapy with TS-1 was compared with that associated with fluoropyrimidine plus platinum chemotherapy to identify the subgroups that would benefit most from platinum-based chemotherapy. The platinum group consisted of younger individuals, more males and more stage III patients compared with the TS 1 group. To reduce selection bias and its effects on treatment results, we performed a propensity score-matched analysis. The matched cohort consisted of 219 TS-1 and 219 platinum treatment patients, respectively. In the matched cohort, the chemotherapeutic regimen did not affect disease-free survival according to stage (stage II: platinum vs. TS-1, P = 0.348; stage III: P = 0.132). According to the subgroup analysis, platinum-based chemotherapy resulted in an improved 3-year disease-free survival compared with TS-1 treatment (66.8% vs. 57.8%, P = 0.015) for patients with high-risk features (any two or more of pT4, pN3, and lymphovascular invasion positivity). Our results suggest that TS-1 alone is acceptable for patients without high-risk features, while platinum-based adjuvant chemotherapy should be administered to patients with high-risk features in D2-resected gastric cancer. PMID- 29029537 TI - The synergistic effect of dual use of amphetamine-type stimulants and ketamine on drug-induced psychotic symptoms in Chinese synthetic drug users. AB - The use of amphetamine-type stimulants (ATS) and ketamine is of particular clinical concern because of its associated psychotic symptoms. In Chinese clinical practice, ATS and ketamine are commonly used simultaneously, but very few studies have reported the symptom profile of users who use both drugs. This study determined whether the combined use of ATS and ketamine is associated with more psychotic symptoms than either ATS or ketamine alone. According to drug use characteristics, 375 Chinese synthetic drug users were categorized into 2 pairs of comparison groups: ATS-only (n=125) vs. ATS-mainly (ATS most of the time and ketamine sometimes, n=150) and ketamine-only (n=38) vs. ketamine-mainly (ketamine most of the time and ATS sometimes, n=62). We used the Chinese Brief Psychiatric Rating Scale (BPRS) to assess these patients' psychotic symptoms. ATS-mainly group had more anxiety/depression and anergia symptoms than ATS-only group (p<0.001), and ketamine-mainly group had more thinking-disorder, activity and hostility-suspicion symptoms than ketamine-only group (p<=0.001). These findings indicate that ATS may exacerbate the thinking-disorders, activity and hostility suspicion symptoms of ketamine users, and ketamine may exacerbate anxiety/depression and anergia symptoms of ATS users. PMID- 29029538 TI - Visceral pleural invasion predict a poor survival among lung adenocarcinoma patients with tumor size <= 3cm. AB - INTRODUCTION: The impact of visceral pleural invasion (VPI) on survival remains controversial for patients with early stage non-small cell lung cancer (NSCLC). This study investigated the survival status of VPI among patients with lymph node negative lung invasive adenocarcinoma smaller than 3cm. METHODS: We retrospectively reviewed 2537 consecutive patients with pathologic stage I lung invasive adenocarcinoma. All patients had received lobectomy and system lymph nodes resection. Patients were classified into 4 groups according to tumor size and visceral pleural invasion status. Disease-free survival (DFS) and overall survival (OS) were analyzed to evaluate survival difference between these groups. RESULTS: 548 patients with VPI while 1989 patients without VPI were included in this study. For patients with tumor size <=2cm, patients with VPI had significant worse DFS (HR,4.85; 95% CI, 2.98-7.91; p = .000) and OS(HR,3.52; 95% CI, 1.59 7.78; p = .002) compared with non-VPI group. For patients with tumor size between 2-3cm, patients with VPI had significant worse DFS (HR, 1.72; 95% CI, 1.16-2.55; p = .006) but no significant OS (HR, 1.31; 95% CI, 0.76-2.24; p = .330) compared with non-VPI group. For patients with VPI, there were no survival difference between tumor size 2-3cm group and <=2cm group for both DFS(HR,1.02; 95% CI, 0.65 1.61; p = .939) and OS(HR,1.45; 95% CI, 0.71-2.97; p = .315). CONCLUSIONS: VPI could predict a poor survival even for node-negative invasive lung adenocarcinoma patients with tumor size less than 3cm. PMID- 29029539 TI - Therapeutic evaluation of arterio-portal fistula-related gastroesophageal variceal bleeding. AB - BACKGROUND & AIMS: Intrahepatic arterio-portal fistula is an uncommon etiology of portal hypertension, which presents diagnostic and therapeutic challenges. This study aimed to assess the efficacy and outcomes of gastroesophageal variceal bleeding caused by arterio-portal fistula using different therapeutic approaches. METHODS: Medical records of 451 consecutive patients with arterio-portal fistula were reviewed from January 1, 2009, to July 15, 2016, and patients suffered variceal bleeding were eligible for the study. RESULTS: Among 57 patients with arterio-portal fistula, hepatocellular carcinoma was existed in 61.4% patients. A combination of radiological intervention and endoscopic treatment was performed in 8 (14.0%) patients; the remainder were treated using radiological intervention alone (n = 20, 35.1%), endoscopic treatment alone (n = 18, 31.6%), or without any intervention (n = 11, 19.3%). No patient died in the combination group, while 20 patients in the single-treatment group and 6 in the untreated group died during follow-up. A significant difference in the survival rate was found between the combination group and the other two groups. Treatment selection between combination and untreated groups was the only parameter significantly associated with survival (p = 0.002). CONCLUSIONS: For patients diagnosed with arterio portal fistula, combination treatment is the most optimal strategy in managing variceal bleeding, especially in patient with severe type of fistula. PMID- 29029540 TI - Timing of chemotherapy-induced neutropenia: the prognostic factor in advanced pancreatic cancer patients treated with gemcitabine / gemcitabine-based chemotherapy. AB - Chemotherapy-induced neutropenia (CIN) was reported to be a predictor of better survival in several cancers. The objective of our study is to evaluate the relationship between the timing (onset) of CIN and prognosis. Between June 2008 and June 2015, 134 patients with confirmed advanced pancreatic cancer received at least one cycle of gemcitabine / gemcitabine-based chemotherapy as first-line chemotherapy were eligible for assessment. Timing of CIN was categorized into early onset and non-early onset CIN group. The end of cycle 2 was the cutoff to differentiate early onset or non-early onset. The correlation between timing of CIN with survival was analyzed by Kaplan-Meier method and Cox proportional hazards model. Median overall survival (OS) was 8.05 months (95% CI: 5.97-10.13) for patients with early onset CIN compared with 5.82 months (95% CI: 5.00-6.63) for patients without early-onset neutropenia (P = 0.022). Multivariate analysis proved that timing of CIN was an independent prognostic factor, hazard ratios of death was 0.696 (95% CI: 0.466-0.938) for patients with early onset CIN. In conclusion, timing of CIN is an independent predictor of prognosis in patients with advanced pancreatic cancer undergoing gemcitabine / gemcitabine based chemotherapy. Early-onset CIN predicts better survival. PMID- 29029542 TI - Comprehensive analysis on diagnostic value of circulating miRNAs for patients with ovarian cancer. AB - We performed a meta-analysis to assess the diagnostic accuracy of circulating miRNA for patients with ovarian cancer. We systematically searched several online databases, including PubMed, Web of Science, Chinese National Knowledge Infrastructure, and Wanfang from inception to February 20, 2017. We used the bivariate mixed-effect models to pool positive likelihood ratios, negative likelihood ratios, diagnostic odds ratios and their 95% CI confidence intervals (CIs). We used the Quality Assessment of Diagnostic Accuracy Studies 2 for quality assessment of diagnostic accuracy studies. This meta-analysis included ten studies with the number of 1356 participants. The pooled sensitivity and specificity were 0.75 (95%CI: 0.69-0.80) and 0.75 (95%CI: 0.69-0.81). We also calculated the positive likelihood ratios (3.03, 95%CI: 2.44-3.76), and negative likelihood ratios (0.33, 95%CI: 0.27-0.41). The diagnostic odds ratio was 9.09 (95%CI: 6.51-12.69). The summary receiver operator characteristic was 0.82 (95%CI: 0.78-0.85). Sensitivity analysis showed similar results. No publication bias existed (t=0.380, P=0.712). The diagnostic ability of miRNAs were moderate for ovarian cancer. Further research was required to obtain accurate results. PMID- 29029541 TI - Cancer and the kidney: dangereoux liasons or price paid for the progress in medicine? AB - A long time ago, the links between renal disease and malignancy were observed, however, quite recently, their importance was recognized and 'new' subspecialty in nephrology, namely 'onconephrology' was established. In the XXI century, patients with malignancy make up the most growing number of the subjects seen for nephrology consult and/or critical care nephrology services. A plethora of renal problems may be found in patients with malignancy. They may influence not only their short-term outcomes but also the adequate therapy of the underlying oncological problem. Thus, all these kidney-related issues pose an important challenge for both specialities: oncology and nephrology. In the review a spectrum of acute and chronic renal injury caused by the malignancy is presented as well as the associations between renal disease and cancer. Assessment of kidney function and its importance in patients with malignancy is also discussed as medical oncologists should check the appropriate dose of chemotherapeutic drugs in relation to the actual renal function before prescribing them to the patients. Moreover, effects of kidney function on outcomes in oncology is presented. In addition, nephrology services should better understand both the biology of malignancy with its treatment to become a valuable part treating team to yield the best possible outcome. It is important for nephrology services to be acknowledged and to take an active participation in care of oncology patients. PMID- 29029543 TI - The miR-200 family in ovarian cancer. AB - Ovarian cancer (OC) is the most lethal gynecological malignancy. Its insidious nature, manifesting with little to no symptoms until the disease progresses to metastasis, along with a wide diversity of histological subtypes and corresponding clinical behavior, poses significant therapeutic challenges. The genetic profiling of this aggressive tumor and its subtypes has led to the identification of various molecular markers of prognosis. Among these, the miR 200 family of miRNAs appears to play an important role. The deregulated expression of the miR-200 family members has been detected in a variety of OC studies. The present review examines the potential usefulness of the miR-200 family members as prognostic indicators in ovarian cancer and their impact across different OC publications, with a particular focus on prognostic features, such as disease stage, tumor histology, survival and response to chemotherapy. We present the potential usefulness of the miR-200 family genes as prognostic indicators in OC and highlight the tendency that miR-200 overexpression corresponds with an advanced cancer stage. PMID- 29029544 TI - Melflufen - a peptidase-potentiated alkylating agent in clinical trials. AB - Aminopeptidases like aminopeptidase N (APN, also known as CD13) play an important role not only in normal cellular functioning but also in the development of cancer, including processes like tumor cell invasion, differentiation, proliferation, apoptosis, motility, and angiogenesis. An increased expression of APN has been described in several types of human malignancies, especially those characterized by fast-growing and aggressive phenotypes, suggesting APN as a potential therapeutic target. Melphalan flufenamide ethyl ester (melflufen, previously denoted J1) is a peptidase-potentiated alkylating agent. Melflufen readily penetrates membranes and an equilibrium is rapidly achieved, followed by enzymatic cleavage in aminopeptidase positive cells, which results in trapping of less lipophilic metabolites. This targeting effect results in very high intracellular concentrations of its metabolite melphalan and subsequent apoptotic cell death. This results in a potency increase (melflufen vs melphalan) ranging from 10- to several 100-fold in different in vitro models. Melflufen triggers a rapid, robust, and an irreversible DNA damage which may account for its ability to overcome melphalan-resistance in multiple myeloma cells. Furthermore, anti angiogenic properties of melflufen have been described. Consequently, it is hypothesized that melflufen could provide better efficacy but no more toxicity than what is achieved with melphalan, an assumption so far supported by experiences from hollow fiber and xenograft studies in rodents as well as by clinical data from patients with solid tumors and multiple myeloma. This review summarizes the current preclinical and clinical knowledge of melflufen. PMID- 29029545 TI - The role of toll-like receptor 4 in tumor microenvironment. AB - Tumors are closely related to chronic inflammation, during which there are various changes in inflammatory sites, such as immune cells infiltration, pro inflammation cytokines production, and interaction between immune cells and tissue cells. Besides, substances, released from both tissue cells attacked by exogenous etiologies, also act on local cells. These changes induce a dynamic and complex microenvironment favorable for tumor growth, invasion, and metastasis. The toll-like receptor 4 (TLR4) is the first identified member of the toll-like receptor family that can recognize pathogen-associated molecular patterns (PAMPs) and damage-associated molecular pattern (DAMPs). TLR4 expresses not only on immune cells but also on tumor cells. Accumulating evidences demonstrated that the activation of TLR4 in tumor microenvironment can not only boost the anti tumor immunity but also give rise to immune surveillance and tumor progression. This review will summarize the expression and function of TLR4 on dendritic cells (DCs), tumor-associated macrophages (TAMs), T cells, myeloid-derived suppressor cells (MDSCs), tumor cells as well as stromal cells in tumor microenvironment. Validation of the multiple role of TLR4 in tumors could primarily pave the road for the development of anti-tumor immunotherapy. PMID- 29029546 TI - Bladder cancer stem cells: clonal origin and therapeutic perspectives. AB - In this article, we review the origin and therapeutic perspectives of bladder cancer stem cells (BCSCs), which are integral to the initiation, high recurrence and chemoresistance of bladder cancer. BCSCs are heterogenous and originate from multiple cell types, including urothelial stem cells and differentiated cell types, including basal, intermediate stratum and umbrella cells. Cell surface markers, including CD44, CD67LR, EMA, ALDH1A1 and BCMab1, are used to identify and isolate BCSCs. The Hedgehog, Notch, Wnt and JAK-STAT signaling pathways play key roles in maintaining the stemness, self-renewal and proliferative potential of BCSCs. High expression of ABC transporters, acetaldehyde dehydrogenase, antioxidants and apoptosis resistance proteins in BCSCs play a critical role in chemoresistance. Consequently, a greater understanding of the biology of BCSCs will be important for identifying effective therapeutic targets to improve clinical outcomes for bladder cancer patients. PMID- 29029547 TI - Nanoformulations of curcumin: an emerging paradigm for improved remedial application. AB - Curcumin is a natural polyphenol and essential curcuminoid derived from the rhizome of the medicinal plant Curcuma longa (L.) is universally acknowledged as "Wonder drug of life". It is a vital consumable and restorative herb, commonly keened for several ailments such as cancer, arthritis, pain, bruises, gastrointestinal quandaries, swelling and much more. Despite its enormous curative potential, the poor aqueous solubility and consequently, minimal systemic bioavailability with rapid degradation are some of the major factors which restrict the utilization of curcumin at medical perspective. However, to improve its clinically relevant parameters, nanoformulation of curcumin is emerging as a novel substitute for their superior therapeutic modality. It enhances its aqueous solubility and targeted delivery to the tissue of interest that prompts to enhance the bioavailability, better drug conveyance, and more expeditious treatment. Subsequent investigations are endeavored to enhance the bio-distribution of native curcumin by modifying with felicitous nano-carriers for encapsulation. In this review, we specifically focus on the recent nanotechnology based implementations applied for overcoming the innate constraints of native curcumin and additionally the associated challenges which restrict its potential therapeutic applications both in vivo and in-vitro studies, as well as their detailed mechanism of action, have additionally been discussed. PMID- 29029548 TI - Antiangiogenic agents after first line and sorafenib plus chemoembolization: a systematic review. AB - Transarterial chemoembolization (TACE) is the standard treatment for intermediate stage, although the combination of TACE with sorafenib may theoretically benefit HCC patients in intermediate stage. Owing to the significant antiangiogenic effect of sorafenib and the limitation of TACE, it is rational to combine them. Though the strategy of combining TACE and sorafenib has been increasingly used in patients with unresectable HCC but the current evidence is controversial and its clinical role has not been determined yet. In first-line therapy, patients receiving sorafenib had increased overall survival and progression free survival. Therefore several antiangiogenic agents have entered clinical studies on HCC, many with negative results. This review discusses the current drug development for patients with HCC and role of TACE plus sorafenib. PMID- 29029551 TI - Low Back Pain: Investigation of Biases in Outpatient Canadian Physical Therapy. AB - Background: Previous research suggested that physical therapy services can be influenced by patient characteristics (age, sex, socioeconomic status) or insurance status rather than their clinical need. Objective: The aim of this study was to determine whether patient-related factors (age, sex, SES) and the source of reimbursement for physical therapy services (insurance status) influence wait time for, frequency of, and duration of physical therapy for low back pain. Design: This study was an empirical cross-sectional online survey of Canadian physical therapy professionals (defined as including physical therapists and physical rehabilitation specialists). Methods: A total of 846 physical therapy professionals received 1 of 24 different (and randomly selected) clinical vignettes (ie, patient case scenarios) and completed a 40-item questionnaire about how they would treat the fictional patient in the vignette as well as their professional clinical practice. Each vignette described a patient with low back pain but with variations in patient characteristics (age, sex, socioeconomic status) and insurance status (no insurance, private insurance, Workers' Compensation Board insurance). Results: The age, sex, and socioeconomic status of the fictional vignette patients did not affect how participants would provide service. However, vignette patients with Workers' Compensation Board insurance would be seen more frequently than those with private insurance or no insurance. When asked explicitly, study participants stated that insurance status, age, and chronicity of the condition were not factors associated with wait time for, frequency of, or duration of treatment. Limitations: This study used a standardized vignette patient and may not accurately represent physical therapy professionals' actual clinical practice. Conclusions: There appears to be an implicit professional bias in relation to patients' insurance status; the resulting inequity in service provision highlights the need for further research as a basis for national guidelines to promote equity in access to and provision of quality physical therapy services. PMID- 29029550 TI - B lymphoblastic leukemia/lymphoma: new insights into genetics, molecular aberrations, subclassification and targeted therapy. AB - B lymphoblastic leukemia/lymphoma (B-ALL) is a clonal hematopoietic stem cell neoplasm derived from B-cell progenitors, which mostly occurs in children and adolescents and is regarded as one of top leading causes of death related to malignancies in this population. Despite the majority of patients with B-ALL have fairly good response to conventional chemotherapeutic interventions followed by hematopoietic stem cell transplant for the last decades, a subpopulation of patients show chemo-resistance and a high relapse rate. Adult B-ALL exhibits similar clinical course but worse prognosis in comparison to younger individuals. Ample evidences have shown that the clinical behavior, response rate and clinical outcome of B-ALL rely largely on its genetic and molecular profiles, such as the presence of BCR-ABL1 fusion gene which is an independent negative prognostic predictor. New B-ALL subtypes have been recognized with recurrent genetic abnormalities, including B-ALL with intrachromosomal amplification of chromosome 21 (iAMP21), B-ALL with translocations involving tyrosine kinases or cytokine receptors ("BCR-ABL1-like ALL"). Genome-wide genetic profiling studies on B-ALL have extended our understanding of genomic landscape of B-ALL, and genetic mutations involved in various key pathways have been illustrated. These include CRLF2 and PAX5 alterations, TP53, CREBBP and ERG mutations, characteristic genetic aberrations in BCR-ABL1-like B-ALL and others. The review further provides new insights into clinical implication of the genetic aberrations in regard to targeted therapy development. PMID- 29029552 TI - Using Rasch Analysis to Validate the Motor Activity Log and the Lower Functioning Motor Activity Log in Patients With Stroke. AB - Background: The Motor Activity Log (MAL) and Lower-Functioning MAL (LF-MAL) are used to assess the amount of use of the more impaired arm and the quality of movement during activities in real-life situations for patients with stroke. Objective: This study used Rasch analysis to examine the psychometric properties of the MAL and LF-MAL in patients with stroke. Design: This is a methodological study. Methods: The MAL and LF-MAL include 2 scales: the amount of use (AOU) and the quality of movement (QOM). Rasch analysis was used to examine the unidimensionality, item difficulty hierarchy, targeting, reliability, and differential item functioning (DIF) of the MAL and LF-MAL. Results: A total of 403 patients with mild or moderate stroke completed the MAL, and 134 patients with moderate/severe stroke finished the LF-MAL. Evidence of disordered thresholds and poor model fit were found both in the MAL and LF-MAL. After the rating categories were collapsed and misfit items were deleted, all items of the revised MAL and LF-MAL exhibited ordering and constituted unidimensional constructs. The person-item map showed that these assessments were difficult for our participants. The person reliability coefficients of these assessments ranged from .79 to .87. No items in the revised MAL and LF-MAL exhibited bias related to patients' characteristics. Limitations: One limitation is the recruited patients, who have relatively high-functioning ability in the LF-MAL. Conclusions: The revised MAL and LF-MAL are unidimensional scales and have good reliability. The categories function well, and responses to all items in these assessments are not biased by patients' characteristics. However, the revised MAL and LF-MAL both showed floor effect. Further study might add easy items for assessing the performance of activity in real-life situations for patients with stroke. PMID- 29029549 TI - Progress and future prospect of in vitro spermatogenesis. AB - Infertility has become a major health issue in the world. It affects the social life of couples and of all infertility cases; approximately 40-50% is due to "male factor" infertility. Male infertility could be due to genetic factors, environment or due to gonadotoxic treatment. Developments in reproductive biotechnology have made it possible to rescue fertility and uphold biological fatherhood. In vitro production of haploid male germ cell is a powerful tool, not only for the treatment of infertility including oligozoospermic or azoospermic patient, but also for the fertility preservation in pre-pubertal boys whose gonadal function is threatened by gonadotoxic therapies. Genomic editing of in vitro cultured germ cells could also potentially cure flaws in spermatogenesis due to genomic mutation. Furthermore, this ex-vivo maturation technique with genomic editing may be used to prevent paternal transmission of genomic diseases. Here, we summarize the historical progress of in vitro spermatogenesis research by using organ and cell culture techniques and the future clinical application of in vitro spermatogenesis. PMID- 29029553 TI - Systematic Review of Costs and Effects of Self-Management Interventions for Chronic Musculoskeletal Pain: Spotlight on Analytic Perspective and Outcomes Assessment. AB - Background: Evidence for the cost-effectiveness of self-management interventions for chronic musculoskeletal pain (CMP) lacks consensus, which may be due to variability in the costing methods employed. Purpose: The purposes of the study were to identify how costs and effects have been assessed in economic analysis of self-management interventions for CMP and to identify the effect of the chosen analytical perspective on cost-effectiveness conclusions. Data Sources: Five databases were searched for all study designs using relevant terms. Study Selection: Two independent researchers reviewed all titles for predefined inclusion criteria: adults (>=18 years of age) with CMP, interventions with a primary aim of promoting self-management, and conducted a cost analysis. Data Extraction: Descriptive data including population, self-management intervention, analytical perspective, and costs and effects measured were collected by one reviewer and checked for accuracy by a second reviewer. Data Synthesis: Fifty seven studies were identified: 65% (n = 37) chose the societal perspective, of which 89% (n = 33) captured health care utilization, 92% (n = 34) reported labor productivity, 65% (n = 24) included intervention delivery, and 59% (n = 22) captured patient/family costs. Types of costs varied in all studies. Eight studies conducted analyses from both health service and societal perspectives; cost-effectiveness estimates varied with perspective chosen, but in no case was the difference sufficient to change overall policy recommendations. Limitations: Chronic musculoskeletal pain conditions where self-management is recommended, but not as a primary treatment, were excluded. Gray literature was excluded. Conclusion: Substantial heterogeneity in the cost components captured in the assessment of self-management for CMP was found; this was independent of the analytic perspective used. Greater efforts to ensure complete and consistent costings are required if reliable cost-effectiveness evidence of self-management interventions is to be generated and to inform the most appropriate perspective for economic analyses in this field. PMID- 29029555 TI - Turning Over the Hourglass. PMID- 29029554 TI - Cross-Sectional Relationships of Physical Activity and Sedentary Behavior With Cognitive Function in Older Adults With Probable Mild Cognitive Impairment. AB - Background: Mild cognitive impairment (MCI) represents a transition between normal cognitive aging and dementia and may represent a critical time frame for promoting cognitive health through behavioral strategies. Current evidence suggests that physical activity (PA) and sedentary behavior are important for cognition. However, it is unclear whether there are differences in PA and sedentary behavior between people with probable MCI and people without MCI or whether the relationships of PA and sedentary behavior with cognitive function differ by MCI status. Objective: The aims of this study were to examine differences in PA and sedentary behavior between people with probable MCI and people without MCI and whether associations of PA and sedentary behavior with cognitive function differed by MCI status. Design: This was a cross-sectional study. Methods: Physical activity and sedentary behavior in adults dwelling in the community (N = 151; at least 55 years old) were measured using a wrist-worn actigraphy unit. The Montreal Cognitive Assessment was used to categorize participants with probable MCI (scores of <26/30) and participants without MCI (scores of >=26/30). Cognitive function was indexed using the Alzheimer Disease Assessment Scale-Cognitive-Plus (ADAS-Cog Plus). Physical activity and sedentary behavior were compared based on probable MCI status, and relationships of ADAS Cog Plus with PA and sedentary behavior were examined by probable MCI status. Results: Participants with probable MCI (n = 82) had lower PA and higher sedentary behavior than participants without MCI (n = 69). Higher PA and lower sedentary behavior were associated with better ADAS-Cog Plus performance in participants without MCI (beta = -.022 and beta = .012, respectively) but not in participants with probable MCI (beta < .001 for both). Limitations: This study was cross-sectional and therefore could not establish whether conversion to MCI attenuated the relationships of PA and sedentary behavior with cognitive function. The diagnosis of MCI was not confirmed with a physician; therefore, this study could not conclude how many of the participants categorized as having probable MCI would actually have been diagnosed with MCI by a physician. Conclusions: Participants with probable MCI were less active and more sedentary. The relationships of these behaviors with cognitive function differed by MCI status; associations were found only in participants without MCI. PMID- 29029558 TI - A Bold Vision for Physical Therapy. PMID- 29029556 TI - Wheelchair Shuttle Test for Assessing Aerobic Fitness in Youth With Spina Bifida: Validity and Reliability. AB - Background: Testing aerobic fitness in youth is important because of expected relationships with health. Objective: The purpose of the study was to estimate the validity and reliability of the Shuttle Ride Test in youth who have spina bifida and use a wheelchair for mobility and sport. Design: Ths study is a validity and reliability study. Methods: The Shuttle Ride Test, Graded Wheelchair Propulsion Test, and skill-related fitness tests were administered to 33 participants for the validity study (age = 14.5 +/- 3.1 y) and to 28 participants for the reliability study (age = 14.7 +/- 3.3 y). Results: No significant differences were found between the Graded Wheelchair Propulsion Test and the Shuttle Ride Test for most cardiorespiratory responses. Correlations between the Graded Wheelchair Propulsion Test and the Shuttle Ride Test were moderate to high (r = .55-.97). The variance in peak oxygen uptake (VO2peak) could be predicted for 77% of the participants by height, number of shuttles completed, and weight, with large prediction intervals. High correlations were found between number of shuttles completed and skill-related fitness tests (CI = .73 to -.92). Intraclass correlation coefficients were high (.77-.98), with a smallest detectable change of 1.5 for number of shuttles completed and with coefficients of variation of 6.2% and 6.4% for absolute VO2peak and relative VO2peak, respectively. Conclusions: When measuring VO2peak directly by using a mobile gas analysis system, the Shuttle Ride Test is highly valid for testing VO2peak in youth who have spina bifida and use a wheelchair for mobility and sport. The outcome measure of number of shuttles represents aerobic fitness and is also highly correlated with both anaerobic performance and agility. It is not possible to predict VO2peak accurately by using the number of shuttles completed. Moreover, the Shuttle Ride Test is highly reliable in youth with spina bifida, with a good smallest detectable change for the number of shuttles completed. PMID- 29029559 TI - Congratulations to the 2017 PODS and NIFTI Recipients. PMID- 29029557 TI - Do Exercise Interventions Improve Participation in Life Roles in Older Adults? A Systematic Review and Meta-Analysis. AB - Background: The World Health Organization recognizes participation in meaningful life roles as a key component of health. However, the evidence base for interventions to improve participation remains inconclusive. In particular, whether exercise interventions improve participation in life roles is unclear. Purpose: The aim of this review was to evaluate the effect of physical exercise interventions on participation in life roles in older adults residing in the community. Data sources: The PubMed, Embase, CINAHL, Cochrane, and PEDro databases were searched from inception through March 2015. Study selection: Randomized controlled trials comparing the effects of an exercise intervention to usual care on participation in life roles in adults who were 60 years of age or older were included in this review. Data extraction: Teams of 2 investigators independently extracted data on participation. Methodological quality was appraised using the Cochrane tool for assessing the risk of bias. The protocol was registered with Prospero (CRD42014014880). Data synthesis: Eighteen randomized controlled trials with a total of 2,315 participants met the inclusion criteria. Standardized mean differences (SMDs) with 95% CIs were calculated using a random-effects model. A meta-analysis of 16 studies showed no overall effect of the exercise interventions on participation (SMD = 0.03; 95% CI = -0.10 to 0.16). Subgroup analysis showed that exercise interventions lasting 12 months or more had a small positive effect on participation (SMD = 0.15; 95% CI = 0.02 to 0.28). Limitations: Limitations included variability in definitions and measures of participation. Conclusions: In general, exercise interventions do not improve participation in life roles in older adults. The results do not support the implicit assumption that exercise-based interventions associated with improved function/activity also result in improved participation. Investigation of complex interventions that go beyond exercise to address participation in life roles for older adults is warranted. PMID- 29029562 TI - The Role of Emotion Regulation and Socialization in Behavioral Parent Training: A Proof-of-Concept Study. AB - Low-income families are less likely to effectively engage in Behavioral Parent Training (BPT), the standard of care for early-onset (3-8 years old) disruptive behavior disorders (DBDs); however, relatively little is known about predictors of treatment process and outcome within this vulnerable group. Given literature to suggest compromises associated with both low-income status and DBDs, this study examined the role of caregiver emotion regulation and socialization practices in 15 low-income families who participated in one evidence-based BPT program, Helping the Noncompliant Child (HNC). Findings suggest baseline caregiver emotion regulation predicted variability in BPT treatment duration and outcomes, whereas baseline caregiver emotion socialization practices explained variation in the severity of child disruptive behaviors concurrently, as well as BPT treatment outcomes. Furthermore, BPT yielded pre- to posttreatment effect sizes that were equivalent to or better than treatments designed to more explicitly target emotion regulation and socialization processes. Clinical implications and future directions are discussed. PMID- 29029563 TI - Development of a Single-Session, Transdiagnostic Preventive Intervention for Young Adults at Risk for Emotional Disorders. AB - Cognitive-behavioral prevention programs have demonstrated efficacy in reducing subclinical symptoms of anxiety and depression, and there is some evidence to suggest that they can lower the risk of future disorder onset. However, existing interventions tend to be relatively lengthy and target specific disorders or problem areas, both of which limit their potential for widespread dissemination. To address these limitations, we aimed to develop a single-session, transdiagnostic preventive intervention based on the Unified Protocol for Transdiagnostic Treatment of Emotional Disorders for young adults at risk for developing anxiety and/or depressive disorders within a college setting. Results from this proof-of-concept study indicated that the intervention was viewed as highly satisfactory and acceptable. The intervention also was successful at delivering adaptive emotion management skills in its 2-hr workshop format. Future studies evaluating the efficacy of this novel transdiagnostic, emotion-focused prevention program are warranted. PMID- 29029560 TI - Failure and Redemption of Statistical and Nonstatistical Rate Theories in the Hydroboration of Alkenes. AB - Our previous work found that canonical forms of transition state theory incorrectly predict the regioselectivity of the hydroboration of propene with BH3 in solution. In response, it has been suggested that alternative statistical and nonstatistical rate theories can adequately account for the selectivity. This paper uses a combination of experimental and theoretical studies to critically evaluate the ability of these rate theories, as well as dynamic trajectories and newly developed localized statistical models, to predict quantitative selectivities and qualitative trends in hydroborations on a broader scale. The hydroboration of a series of terminally substituted alkenes with BH3 was examined experimentally, and a classically unexpected trend is that the selectivity increases as the alkyl chain is lengthened far from the reactive centers. Conventional and variational transition state theories can predict neither the selectivities nor the trends. The canonical competitive nonstatistical model makes somewhat better predictions for some alkenes but fails to predict trends, and it performs poorly with an alkene chosen to test a specific prediction of the model. Added nonstatistical corrections to this model make the predictions worse. Parametrized Rice-Ramsperger-Kassel-Marcus (RRKM)-master equation calculations correctly predict the direction of the trend in selectivity versus alkene size but overpredict its magnitude, and the selectivity with large alkenes remains unpredictable with any parametrization. Trajectory studies in explicit solvent can predict selectivities without parametrization but are impractical for predicting small changes in selectivity. From a lifetime and energy analysis of the trajectories, "localized RRKM-ME" and "competitive localized noncanonical" rate models are suggested as steps toward a general model. These provide the best predictions of the experimental observations and insight into the selectivities. PMID- 29029561 TI - Women with PSVT are often misdiagnosed, referred later than men, and have more symptoms after ablation. AB - OBJECTIVES: Using a patient and gender perspective, this study evaluates the experiences and perspectives of referral for paroxysmal supraventricular tachycardia (PSVT), and symptoms, Health-Related Quality of Life (HRQOL) and functional impairment before and six months after ablation. DESIGN: This prospective study includes 214 (109 women) patients with PSVT who completed questionnaires before and after ablation addressing referral patterns, duration of arrhythmia, socioeconomic status, symptoms, HRQOL, and functional impairment. RESULT: Women had a longer history of symptomatic arrhythmia before ablation compared to men (16.2 +/- 14.6 vs. 9.9 +/- 13.1 years, p = .001). From the patient's perspective, physicians more often incorrectly interpreted women's symptoms as anxiety, stress, panic attacks, or depression compared to men, delaying referral for ablation. More women than men stated they were not taken seriously when consulting for their tachycardia symptoms (17% vs.7%, p = .03). At baseline, there were minor differences between the sexes in HRQOL and functional impairment, but women had a higher symptom score on Symptoms Checklist Frequency (19 vs. 14, p < .001) and Severity Scale (12 vs. 16, p = .001). At six months, women were more symptomatic and their HRQOL improved less than in men. Both sexes reported improvement in recreation and pastime (p = .001). CONCLUSION: Women with PSVT are referred for ablation later, and are more symptomatic before and after ablation than men. Symptoms due to PSVT are often incorrectly diagnosed as panic attacks, stress, anxiety, or depression, misdiagnoses that delay referral for ablation, especially for women. PMID- 29029564 TI - Psychometric Validation of the Revised Child Anxiety and Depression Scales-Parent Version (RCADS-P) in Children Evaluated for ADHD. AB - Children with attention-deficit/hyperactivity disorder (ADHD) frequently experience comorbid internalizing symptoms. The Revised Child Anxiety and Depression Scales-Parent Version (RCADS-P) is a frequently used measure of anxiety and depression in children, though its psychometric properties remain unexamined in children referred for ADHD specifically. The present study evaluated the RCADS-P in 372 children (age 7-12 years; 68% male) referred for evaluation at an ADHD specialty clinic (89% met criteria for ADHD). In addition to the RCADS-P, parents completed the Vanderbilt ADHD Diagnostic Rating Scale and Child Behavior Checklist and were administered the Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children semistructured diagnostic interview. Teacher ratings were available for approximately half of the sample. Factor structure, reliability, convergent/discriminant validity, and sensitivity/specificity were examined. Results supported the six-factor structure of the RCADS-P. The RCADS-P demonstrated adequate internal consistency as well as convergent and discriminant validity with other parent ratings and, to a somewhat lesser extent, teacher ratings. Children with an internalizing diagnosis had higher RCADS-P scores than children without an internalizing diagnosis. Finally, the RCADS-P had good-to-excellent diagnostic efficiency, and a total sum score of 25 had excellent sensitivity and fair specificity. Findings provide psychometric support for the RCADS-P in children with ADHD. PMID- 29029566 TI - Associations Among Quadriceps Strength and Rate of Torque Development 6 Weeks Post Anterior Cruciate Ligament Reconstruction and Future Hop and Vertical Jump Performance: A Prospective Cohort Study. AB - Study Design Prospective cohort. Background Quadriceps strength is associated with hop distance and jump height in persons who have undergone anterior cruciate ligament (ACL) reconstruction. However, it is unknown whether the ability to rapidly generate quadriceps torque in the early phase of recovery is associated with future hopping and jumping performance in this population. Objective To evaluate the prospective associations among quadriceps strength and rate of torque development (RTD) and single-leg hop for distance, vertical jump height, vertical ground reaction force (vGRF), and vertical force loading rate during a landing task in persons who have undergone ACL reconstruction. Methods Seventy patients with unilateral ACL reconstruction participated. At 6 weeks post ACL reconstruction, isometric quadriceps strength and RTD were measured using a dynamometer. At 6 months following ACL reconstruction, patients performed the single-leg hop for distance test. Patients also performed the single-leg vertical jump test on a force plate that measured maximum jump height, vGRF, and average loading rate during landing. Results Both quadriceps strength and RTD at 6 weeks post ACL reconstruction were associated with all hopping and jumping measures at 6 months post ACL reconstruction (P<=.04). Single-leg hop distance was associated more closely with quadriceps strength than with quadriceps RTD (P = .05), and vertical jump height and vGRF measures were associated more closely with quadriceps RTD than with quadriceps strength (P = .05 and P<.01, respectively). Both quadriceps measures were associated with loading rate. Conclusion Quadriceps strength and RTD are complementary but distinct predictors of future hopping and jumping performance in persons who have undergone ACL reconstruction. These findings may contribute to improved rehabilitation of patients who are at risk for poor jumping/hopping performance and abnormal knee loading. J Orthop Sports Phys Ther 2017;47(11):845-852. Epub 13 Oct 2017. doi:10.2519/jospt.2017.7133. PMID- 29029567 TI - More than 20 years' experience of left ventricular assist device implantation at a non-transplant Centre. AB - OBJECTIVES: Over recent decades implantable left ventricular assist devices (LVAD) have increased the possibility of improved survival in patients with advanced heart failure who also benefit from a better quality of life. The aim of this retrospective survey was to review the clinical results of LVAD implantation at a low-volume non-transplant centre (Linkoping, Sweden) between 1993 and 2016. Our aim was also to assess the mortality and morbidity rates associated with implantation of three LVAD versions at our centre, and to compare our results with those from transplant centres. DESIGN: A retrospective cohort study was performed examining the medical records of patients who had a HeartMate(r) (HMI, HMII, HMIII) LVAD implanted as a bridge to heart transplantation (BTT) or as destination therapy (DT) at the University Hospital, Linkoping. RESULTS: Our main finding was a survival to heart transplantation rate of 82% among our BTT LVAD patients. The most common adverse event among our patients was infection. A higher frequency of temporary dialysis was seen in the HMII group compared to the HMI group, and the frequency of right ventricular failure was higher in our HMII material. CONCLUSIONS: Our data suggests that patients requiring long-term LVAD support can safely have their device implanted and cared for at a non-transplant centre. PMID- 29029568 TI - Quaternized chitosan nanoparticles loaded with the combined attenuated live vaccine against Newcastle disease and infectious bronchitis elicit immune response in chicken after intranasal administration. AB - Newcastle disease (ND) and infectious bronchitis (IB) are important diseases, which cause respiratory diseases in chickens, resulting in severely economic losses in the poultry industry. In this study, N-2-hydroxypropyl trimethyl ammonium chloride chitosan (N-2-HACC) and N,O-carboxymethyl chitosan (CMC) were synthesized as adjuvant and delivery carrier for vaccine antigens. N-2-HACC CMC/NDV/IBV nanoparticles (NPs) (NDV/La Sota and IBV/H120 encapsulated in N-2 HACC-CMC NPs) and N-2-HACC-CMC/NDV-IBV NPs (the mixing of N-2-HACC-CMC/NDV NPs and N-2-HACC-CMC/IBV NPs in a ratio of 1:1) were prepared by the polyelectrolyte composite method, respectively. Both nanoparticles exhibited lower cytotoxicity and higher stability. Their bioactivities were maintained when they were stored at 37 degrees C for three weeks. Release assay in vitro showed that both NDV and IBV could be sustainably released from the nanoparticles after an initial burst release. In vivo immunization of chickens showed that N-2-HACC-CMC/NDV/IBV NPs or N-2-HACC-CMC/NDV-IBV NPs intranasally induced higher titers of IgG and IgA antibodies, significantly promoted proliferation of lymphocytes and induced higher levels of interleukine-2 (IL-2), IL-4 and interferon-gamma (IFN-gamma) than the commercially combined attenuated live vaccine did. This is the first study in the field of animal vaccines demonstrating that intranasal administration of chickens with antigens (NDV and IBV) encapsulated with chitosan derivative could induce humoral, cellular, and mucosal immune responses, which protected chickens from the infection of highly virulent NDV and IBV. This study indicated that N-2-HACC-CMC could be used as an efficient adjuvant and delivery carrier for further development of mucosal vaccines and drugs and could have an immense application potential in medicine. PMID- 29029569 TI - Friendship Quality in Adolescents With ADHD. AB - OBJECTIVE: This study compared the quality of friendships (same- and other-sex) in adolescents with and without ADHD, across age and gender. METHOD: A community sample of 115 participants (61 ADHD, 54 Comparison), ages 13 to 18, completed a questionnaire assessing perceived levels of social support and negative interactions experienced in their friendships. RESULTS: Ratings of friendship social support diminished across age in youth with ADHD, but increased in typically developing youth. Adolescents with and without ADHD, however, did not differ on ratings of negative interactions experienced in their friendships. Compared with males, females rated their friendships to be more supportive, irrespective of ADHD status. Adolescents with and without ADHD rated their same sex friendships to be simultaneously more supportive and more conflictual than their other-sex friendships. CONCLUSION: Assessments of adolescents with ADHD should include a careful examination of their social functioning with particular attention devoted to the quality of their friendships. PMID- 29029570 TI - Clinical characteristics of poly-drug abuse among heroin dependents and association with other psychopathology in compulsory isolation treatment settings in China. AB - OBJECTIVE: To investigate clinical characteristics and associations of polydrug abuse among heroin-dependent patients in compulsory isolation settings in China. METHODS: Structured interviews were conducted in 882 heroin-dependent patients in two compulsory isolation settings in Changsha, China. Descriptive statistics were employed to report prevalence and general information of polydrug abuse among the participants. Bivariate associations were examined between polydrug abuse and variables regarding demographics, heroin use profile and psychopathology. Multivariate logistic regressions were conducted to determine independent factors associated with polydrug abuse. RESULTS: Of all the participants, 40.6% reported abuse of/dependence on at least one other type of drug/alcohol than heroin/opioids during the month preceding admission, with benzodiazepines and alcohol being the most common type of drugs abused apart from heroin. Antisocial and depressive personality disorders, as well as more severe heroin use patterns, including younger age at initiate use and larger amount used per day, were found to be independently associated with polydrug abuse. CONCLUSIONS: The prevalence of polydrug abuse and its associated severe heroin use patterns and personality disorders suggests an urgent need of promoting treatment policies and strategies for heroin patients in China to address these issues. PMID- 29029572 TI - Response to: The death of ward-based learning. PMID- 29029573 TI - "Time and space". a further development in consent for elective spinal neurosurgery. PMID- 29029574 TI - Early Postoperative Infection Following Open Reduction Internal Fixation Repair of Closed Malleolar Fractures. AB - BACKGROUND: Early postoperative infection (EPI) following hardware placement in patients with malleolar fractures is a serious complication. Identifying factors that place patients at risk for early infection may help target interventions to prevent infections. METHODS: Data for the study included all adult patients who underwent operative management for closed malleolar fracture from 2006 to 2013 in the National Surgical Quality Improvement Program database. Characteristics of patients with and without EPI were compared using univariate tests. Logistic regression was used to perform a multivariable analysis of risk factors for EPI while controlling for covariates. Length of stay was analyzed using a generalized linear model. RESULTS: The analysis sample included 7054 patients, of whom 116 developed EPI. Patients with EPI were slightly older on average, more likely to have diabetes, and had higher anesthesia class. Multivariable analysis identified several risk factors for EPI, including diabetes (odds ratio [OR] = 2.6; 95% CI = 1.5-4.5; P < .0001), American Society of Anaesthesiology (ASA) class 3+ (OR = 2.3; 95% CI = 1.03-5.0; P = .04), unclean surgery (OR = 2.4; 95% CI = 1.3-4.2; P < .0001), and inpatient location (OR 1.7, 1.1-2.7; P = .01). After controlling for other factors, EPI was not significantly associated with a longer hospital stay (0.2 days, P = .55). CONCLUSION: In the 30 days after hardware placement for malleolar fracture, infection occurs with increased frequency in older patients, diabetics, those with higher anesthesia class, and in the setting of unclean surgery and inpatient operative location. Patients with the identified risk factors should be followed closely for development of infection. LEVELS OF EVIDENCE: Level III: Retrospective cohort study. PMID- 29029571 TI - Encoding strategy training and self-reported everyday prospective memory in people with Parkinson disease: a randomized-controlled trial. AB - Objective To compare the effects of laboratory-based training in implementation intentions (II; experimental strategy) and verbal rehearsal (VR; control strategy) on self-reported everyday prospective memory among people with Parkinson disease (PD) and to investigate potential correlates of change in self reported everyday prospective memory in response to this training. Method This was a randomized-controlled trial. Participants with mild to moderate PD without dementia underwent one session of training in either II (n = 25) or VR (n = 27). Then they were instructed to use their strategy as much as possible in their everyday lives to help them remember to do things. The Prospective and Retrospective Memory Questionnaire Prospective Scale (PRMQ-Pro) administered at baseline and one month after training assessed training-related change in self reported everyday prospective memory. Baseline depressive symptoms, perceptions of the strategy (credibility, expectancy), prospective memory-related awareness, global cognition, and disease severity were correlated to PRMQ-Pro Change scores (post minus pre) to determine their association with response to training. Results The VR group's PRMQ-Pro scores declined from pre to post training, while the II group's remained stable (p = .03). This effect was driven by change in self-cued everyday prospective memory tasks. Higher baseline depressive symptoms, treatment expectancy, and global cognition related to better response to training in the II group (rs <= -.40, ps <= .05). Conclusions II training may prevent everyday prospective memory decline among people with PD. In addition, people with higher depression, stronger expectations of improvement from strategy training, or better global cognition may benefit the most from II training. PMID- 29029575 TI - Effect of Gender on Mechanical Properties of the Plantar Fascia and Heel Fat Pad. AB - BACKGROUND: The purpose of the study was to investigate the plantar fascia and heel fat pad stiffness and thickness parameters in females and compare these values with those of males. METHODS: This study was carried out in 60 healthy sedentary participants (30 female, 30 male) between the ages of 19 and 50 years. Shear wave velocity (SWV) and thickness of the plantar fascia and heel fat pad were measured with an ultrasonography device. RESULTS: Males had a higher plantar fascia ( P = .037) and heel fat pad ( P = .001) thickness compared with females, but SWV of the plantar fascia ( P = .673), heel fat pad microchamber layer ( P = .240), and heel fat pad macrochamber layer ( P = .636) were similar in both groups. Body mass had a strong correlation with the plantar fascia ( r = 0.64, P < .001) and heel fat pad thickness ( r = 0.68, P < .001). Height had a moderate correlation with the plantar fascia ( r = 0.44, P < .001) and heel fat pad thickness ( r = 0.42, P = .001). CONCLUSION: Plantar fascia and heel fat pad stiffness were similar in both genders; however, females had a lower plantar fascia and heel fat pad thickness compared with males. Correlation analysis results suggest that higher plantar fascia and heel fat pad thickness in males may be related to higher body mass and height. LEVELS OF EVIDENCE: Level III: Retrospective comparative study. PMID- 29029576 TI - Marine Aerosols and Clouds. AB - The role of marine bioaerosols in cloud formation and climate is currently so uncertain that even the sign of the climate forcing is unclear. Marine aerosols form through direct emissions and through the conversion of gas-phase emissions to aerosols in the atmosphere. The composition and size of aerosols determine how effective they are in catalyzing the formation of water droplets and ice crystals in clouds by acting as cloud condensation nuclei and ice nucleating particles, respectively. Marine organic aerosols may be sourced both from recent regional phytoplankton blooms that add labile organic matter to the surface ocean and from long-term global processes, such as the upwelling of old refractory dissolved organic matter from the deep ocean. Understanding the formation of marine aerosols and their propensity to catalyze cloud formation processes are challenges that must be addressed given the major uncertainties associated with aerosols in climate models. PMID- 29029578 TI - The empathy test. PMID- 29029577 TI - A novel core-shell lipid nanoparticle for improving oral administration of water soluble chemotherapeutic agents: inhibited intestinal hydrolysis and enhanced lymphatic absorption. AB - The oral administration of water-soluble chemotherapeutical agents is limited by their serious gastrointestinal side effects, instability at intestinal pH, and poor absorption. Aiming to solve these problems, we chose topotecan (TPT) as a model drug and developed a novel lipid formulation containing core-shell lipid nanoparticle (CLN) that makes the water-soluble drug to 'dissolve' in oil. TPT molecules can be encapsulated into nanoparticles surrounded by oil barrier while avoiding the direct contact with intestinal environment, thus easing the intestinal hydrolytic degradation and gastrointestinal (GI) irritation. Microstructure and mean particle size of TPT-CLN were characterized by Transmission Electron Microscope (TEM) and Dynamic Light Scattering (DLS), respectively. The average size of nanoparticles was approximately 60 nm with a homogeneous distribution in shapes of spheres or ellipsoid. According to in vitro stability studies, more initial form of TPT was observed in presence of lipid nanoparticle compared with free topotecan solution in artificial intestinal juice (pH 6.5). After oral administration of TPT-CLN in rats, AUC and Cmax of TPT were all increased compared with free TPT, indicating significant enhancement of oral absorption. Intestinal lymphatic transport was confirmed as the major way for CLN to enhance oral absorption of TPT by the treatment of blocking chylomicron flow. Lower GI irritation of TPT-CLN was observed in the gastrointestinal damage studies. The in vivo antitumor activity of TPT-CLN showed an improved antitumor efficacy by oral treatment of TPT-CLN compared to free TPT. From the obtained data, the systems appear an attractive progress in oral administration of topotecan. PMID- 29029579 TI - Fatigue - but not mTBI history, PTSD, or sleep quality - directly contributes to reduced prospective memory performance in Iraq and Afghanistan era Veterans. AB - OBJECTIVE: Memory problems that affect daily functioning are a frequent complaint among Veterans reporting a history of repetitive mild traumatic brain injury (mTBI), especially in cohorts with comorbid PTSD. Here, we test the degree to which subjective sleep impairment and daytime fatigue account for the association of PTSD and self-reported mTBI history with prospective memory. METHOD: 82 Veterans with and without personal history of repeated blast-related mTBI during deployment were administered the Clinician Administered PTSD Scale (CAPS), Memory for Intentions Test (MIST), Patient Health Questionnaire-9 (PHQ-9), Neurobehavioral Symptom Inventory (NSI), and the Pittsburgh Sleep Quality Index (PSQI). Relationships between self-reported mTBI, PTSD, self-reported poor sleep and daytime fatigue, and MIST performance were modeled using partial least squares structural equation modeling (PLS-SEM). RESULTS: Reported daytime fatigue was strongly associated with poorer prospective memory performance. Poor subjective sleep quality was strongly and positively associated with reported daytime fatigue, but had no significant direct effect on prospective memory performance. PTSD diagnosis and self-reported mTBI history were only associated with prospective memory via their impact on subjective sleep quality and daytime fatigue. CONCLUSIONS: Results suggest that daytime fatigue may be a mediating factor by which both mTBI and PTSD can interfere with prospective memory. Additional attention should be given to complaints of daytime fatigue, independent of subjective sleep quality, in the clinical care of those with a self-reported history of mTBI, and/or PTSD. Further research into whether interventions that decrease daytime fatigue lead to improvement in prospective memory and subjective cognitive functioning is warranted. PMID- 29029580 TI - Uncovering Longitudinal Health Care Behaviors for Millions of Medicaid Enrollees: A Multistate Comparison of Pediatric Asthma Utilization. AB - BACKGROUND: This study introduces a framework for analyzing and visualizing health care utilization for millions of children, with a focus on pediatric asthma, one of the major chronic respiratory conditions. METHODS: The data source is the 2005 to 2012 Medicaid Analytic Extract claims for 10 Southeast states. The study population consists of Medicaid-enrolled children with persistent asthma. We translate multiyear, individual-level medical claims into sequences of discrete utilization events, which are modeled using Markov renewal processes and model-based clustering. Network analysis is used to visualize utilization profiles. The method is general, allowing the study of other chronic conditions. RESULTS: The study population consists of 1.5 million children with persistent asthma. All states have profiles with high probability of asthma controller medication, as large as 60.6% to 90.2% of the state study population. The probability of consecutive asthma controller prescriptions ranges between 0.75 and 0.95. All states have utilization profiles with uncontrolled asthma with 4.5% to 22.9% of the state study population. The probability for controller medication is larger than for short-term medication after a physician visit but not after an emergency department (ED) visit or hospitalization. Transitions from ED or hospitalization generally have a lower probability into physician office (between 0.11 and 0.38) than into ED or hospitalization (between 0.20 and 0.59). CONCLUSIONS: In most profiles, children who take asthma controller medication do so regularly. Follow-up physician office visits after an ED encounter or hospitalization are observed at a low rate across all states. Finally, all states have a proportion of children who have uncontrolled asthma, meaning they do not take controller medication while they have severe outcomes. PMID- 29029581 TI - Prevalence of urinary tract infections mimicking respiratory infections and risk factors associated. PMID- 29029582 TI - New Concepts in the Treatment of Malignant Pleural Mesothelioma. AB - Malignant pleural mesothelioma (MPM) is a highly aggressive and generally incurable cancer. Current anti-MPM chemotherapy-based treatments are only marginally effective, and long-term survival remains an unmet goal. Nonetheless, in selected cases, personalized surgery-based multimodality treatments (MMT) have been shown to significantly extend survival. The design of MMT and selection of patients are challenging, and optimal results require accurate presurgical diagnosis, staging, and risk stratification. Further, meticulous surgical techniques and advanced radiation protocols must be applied. We review key principles and evolving concepts in the care of MPM patients with a focus on the expanding role of MMT in MPM. PMID- 29029583 TI - New-Generation High-Potency and Designer Antibodies: Role in HIV-1 Treatment. AB - Broadly neutralizing antibodies (bNAbs) have been evaluated as promising agents in the fight against infectious diseases. HIV-1-specific bNAbs, in particular, have been tested in both preventive and therapeutic modalities. Multiple bNAbs have been isolated, characterized, and assessed in vitro and in vivo, but no single antibody appears to possess the breadth and potency that may be needed if it is to be used in the treatment of HIV-1 infection. With the technological advances of the past decades, novel and more effective bNAbs have been identified or engineered for higher neutralizing potency, greater breadth, and increased serum half-life. In this review, we discuss the development of a new generation of anti-HIV-1 bNAbs and their potential to be used clinically for treatment and prevention of HIV-1 infection. PMID- 29029584 TI - Evidence for Genetic Risk Contributing to Long-Term Adverse Treatment Effects in Childhood Cancer Survivors. AB - Survivors of childhood cancer are at increased risk for therapy-related morbidities and mortality. Although the demographic and clinical factors predicting the risk for long-term effects of cancer therapy are well known, the impact of genetic risk for specific late effects is less clearly defined. Here, we review the extant literature and recent research describing genetic modifiers to risk for the more common late effects of childhood cancer therapy. Results of this research support the need for clinical trials that attempt to further refine risk prediction by incorporating genetic testing into existing algorithms that are primarily based on clinical and demographic factors. Confirmation of genetic predisposition, as defined by reproducibility and prospective validation, would permit therapeutic modification and discussion of individualized survivor care plans even at initial cancer diagnosis. PMID- 29029585 TI - Refinement of the Affordable Care Act: A Progressive Perspective. AB - The Affordable Care Act (ACA) was the most significant expansion of health coverage since Medicare and Medicaid were enacted. The law resulted in approximately 13-20 million uninsured persons gaining coverage. Despite these gains, the ACA has numerous shortcomings. For progressives, the ACA was a unique opportunity to provide access to high-quality, comprehensive, equitable health coverage to all persons living in the United States. Using this perspective as our framework, in this review we highlight some of the limitations of the ACA and potential areas for refinement. We conclude that the ACA fell far short of the goal of achieving universal coverage and that the coverage made available through the ACA was not equitable. In addition, the ACA expanded coverage by building onto a highly fragmented, inefficient, and costly health system. Thus, it did little to control health costs. A more fiscally prudent approach would have been built upon more successful existing programs, such as a Medicare for All. PMID- 29029586 TI - Use and Misuse of Opioids in Chronic Pain. AB - The prescribing of opioid analgesics for pain management-particularly for management of chronic noncancer pain (CNCP)-has increased more than fourfold in the United States since the mid-1990s. Yet there is mounting evidence that opioids have only limited effectiveness in the management of CNCP, and the increased availability of prescribed opioids has contributed to upsurges in opioid-related addiction cases and overdose deaths. These concerns have led to critical revisiting and modification of prior pain management practices (e.g., guidelines from the Centers for Disease Control and Prevention), but the much needed changes in clinical practice will be facilitated by a better understanding of the pharmacology and behavioral effects of opioids that underlie both their therapeutic effects (analgesia) and their adverse effects (addiction and overdose). With these goals in mind, this review first presents an overview of the contemporary problems associated with opioid management of CNCP and the related public health issues of opioid diversion, overdose, and addiction. It then discusses the pharmacology underlying the therapeutic and main adverse effects of opioids and its implications for clinical management of CNCP within the framework of recent clinical guidelines for prescribing opioids in the management of CNCP. PMID- 29029587 TI - "Here if you need me": exploring peer support to enhance access to physical health care. AB - BACKGROUND: People diagnosed with mental illness (hereinafter "consumers") have higher rates of chronic disease and significantly shorter lives than the wider population. Peer workers have become increasingly involved in facilitating access to physical health care, yet the consumer perspective regarding peer involvement is unknown. This absent voice is needed to inform strategic planning and generate solutions to address the current inequity in health status. AIM: To articulate the views of consumers in regards to the potential use of peer workers to further the physical health of people with mental illness. METHODS: A qualitative exploratory study was conducted involving four focus groups with 31 consumer participants. Focus group responses were analysed thematically. RESULTS: Three themes pertaining to enhancing physical health care emerged: (1) the potential of peer workers in mitigating existing barriers, (2) consumer advocacy organisations expanding their agenda and (3) benefits of segregated activities as a segue to mainstream options. CONCLUSIONS: The envisaged forms of peer contribution have far greater scope and depth than is currently considered in policy, the research literature and health practice. Innovative solutions are required for this neglected population. Individual and systemic advocacy led by peer workers can enhance access to physical health care and have the potential to reduce physical health inequalities. PMID- 29029588 TI - Society for the Advancement of Transplant Anesthesia: Liver Transplant Anesthesia Fellowship-White Paper Advocating Measurable Proficiency in Transplant Specialties Training. AB - The anesthesia community has openly debated if the care of transplant patients was generalist or specialist care ever since the publication of an opinion paper in 1999 recommended subspecialty training in the field of liver transplantation anesthesia. In the past decade, liver transplant anesthesia has become more complex with a sicker patient population and evolving evidence-based practices. Transplant training is currently not required for accreditation or certification in anesthesiology, and not all anesthesia residency programs are associated with transplant centers. Yet there is evidence that patient outcome is affected by the experience of the anesthesiologist with liver transplants as part of a multidisciplinary care team. Requests for a formal review of the inequities in training opportunities and requirements led the Society for the Advancement for Transplant Anesthesia (SATA) to begin the task of developing post-graduate fellowship training recommendations. In this article, members of the SATA Working Group on Transplant Anesthesia Education present their reasoning for specialized education and conclusions about which pathways can better prepare trainees to care for complex transplant patients. PMID- 29029589 TI - Environmental Adaptations, Ecological Filtering, and Dispersal Central to Insect Invasions. AB - Insect invasions, the establishment and spread of nonnative insects in new regions, can have extensive economic and environmental consequences. Increased global connectivity accelerates rates of introductions, while climate change may decrease the barriers to invader species' spread. We follow an individual-level insect- and arachnid-centered perspective to assess how the process of invasion is influenced by phenotypic heterogeneity associated with dispersal and stress resistance, and their coupling, across the multiple steps of the invasion process. We also provide an overview and synthesis on the importance of environmental filters during the entire invasion process for the facilitation or inhibition of invasive insect population spread. Finally, we highlight important research gaps and the relevance and applicability of ongoing natural range expansions in the context of climate change to gain essential mechanistic insights into insect invasions. PMID- 29029590 TI - Nutritional Physiology and Ecology of Honey Bees. AB - Honey bees feed on floral nectar and pollen that they store in their colonies as honey and bee bread. Social division of labor enables the collection of stores of food that are consumed by within-hive bees that convert stored pollen and honey into royal jelly. Royal jelly and other glandular secretions are the primary food of growing larvae and of the queen but are also fed to other colony members. Research clearly shows that bees regulate their intake, like other animals, around specific proportions of macronutrients. This form of regulation is done as individuals and at the colony level by foragers. PMID- 29029591 TI - Application of Microphysiological Systems to Enhance Safety Assessment in Drug Discovery. AB - Enhancing the early detection of new therapies that are likely to carry a safety liability in the context of the intended patient population would provide a major advance in drug discovery. Microphysiological systems (MPS) technology offers an opportunity to support enhanced preclinical to clinical translation through the generation of higher-quality preclinical physiological data. In this review, we highlight this technological opportunity by focusing on key target organs associated with drug safety and metabolism. By focusing on MPS models that have been developed for these organs, alongside other relevant in vitro models, we review the current state of the art and the challenges that still need to be overcome to ensure application of this technology in enhancing drug discovery. PMID- 29029592 TI - Pharmacoepigenetics and Toxicoepigenetics: Novel Mechanistic Insights and Therapeutic Opportunities. AB - Pharmacological treatment and exposure to xenobiotics can cause substantial changes in epigenetic signatures. The majority of these epigenetic changes, caused by the compounds in question, occur downstream of transcriptional activation mechanisms, whereby the epigenetic alterations can create a transcriptional memory and stably modulate cell function. The increasing understanding of epigenetic mechanisms and their importance in disease has prompted the development of therapeutic interventions that target epigenetic modulatory mechanisms, particularly in oncology where inhibitors of epigenetic modifying proteins (epidrugs) have been successfully used in treatment, mostly in combination with standard-of-care chemotherapy, either provoking direct cytotoxicity or inhibiting resistance to anticancer drugs. In addition, emerging methods for detecting epigenetically modified DNA in bodily fluids may provide information about tumor phenotype or drug treatment success. However, it is important to note that many technical pitfalls, such as the nondeconvolution of methylcytosine and hydroxymethylcytosine, compromise epigenetic analyses and the interpretation of results. In this review, we provide an update on the field, with an emphasis on the novel therapeutic opportunities made possible by epidrugs. PMID- 29029593 TI - Lymphatic Dysfunction, Leukotrienes, and Lymphedema. AB - The lymphatic system is essential for the maintenance of tissue fluid homeostasis, gastrointestinal lipid absorption, and immune trafficking. Whereas lymphatic regeneration occurs physiologically in wound healing and tissue repair, pathological lymphangiogenesis has been implicated in a number of chronic diseases such as lymphedema, atherosclerosis, and cancer. Insight into the regulatory mechanisms of lymphangiogenesis and the manner in which uncontrolled inflammation promotes lymphatic dysfunction is urgently needed to guide the development of novel therapeutics: These would be designed to reverse lymphatic dysfunction, either primary or acquired. Recent investigation has demonstrated the mechanistic role of leukotriene B4 (LTB4) in the molecular pathogenesis of lymphedema. LTB4, a product of the innate immune response, is a constituent of the eicosanoid inflammatory mediator family of molecules that promote both physiological and pathological inflammation. Here we provide an overview of lymphatic development, the pathophysiology of lymphedema, and the role of leukotrienes in lymphedema pathogenesis. PMID- 29029594 TI - Chemoreceptors in the Gut. AB - The gastrointestinal tract represents the largest interface between the human body and the external environment. It must continuously monitor and discriminate between nutrients that need to be assimilated and harmful substances that need to be expelled. The different cells of the gut epithelium are therefore equipped with a subtle chemosensory system that communicates the sensory information to several effector systems involved in the regulation of appetite, immune responses, and gastrointestinal motility. Disturbances or adaptations in the communication of this sensory information may contribute to the development or maintenance of disease. This is a new emerging research field in which perception of taste can be considered as a novel key player participating in the regulation of gut function. Specific diets or agonists that target these chemosensory signaling pathways may be considered as new therapeutic targets to tune adequate physiological processes in the gut in health and disease. PMID- 29029595 TI - 2-Hydroxyoleic acid-inserted liposomes as a multifunctional carrier of anticancer drugs. AB - Studies have shown that insertion of oleic acid into lipid bilayers can modulate the membrane properties of liposomes so as to improve their function as drug carriers. Considering that 2-hydroxyoleic acid (2OHOA), a potential antitumor agent currently undergoing clinical trials, is a derivative of oleic acid, we explored the possibility of developing 2OHOA-inserted liposomes as a multifunctional carrier of antitumor drugs in the present study. The insertion of 2OHOA into lipid bilayers was confirmed by surface charge determination and differential scanning calorimetry. 2OHOA insertion greatly decreased the order of dimyristoylphosphatidylcholine packing, produced a nanosized (<100 nm) dispersion, and improved the colloidal stability of liposomes during storage. Moreover, 2OHOA-inserted liposome forms exhibited greater growth inhibitory activity against cancer cells compared with free 2OHOA, and the growth-inhibitory activity of liposomal 2OHOA was selective for tumor cells. 2OHOA insertion greatly increased the liposome-incorporated concentration of hydrophobic model drugs, including mitoxantrone, paclitaxel, and all-trans retinoic acid (ATRA). The in vitro anticancer activity of ATRA-incorporated/2OHOA-inserted liposomes was significantly higher than that of ATRA-incorporated conventional liposomes. In a B16-F10 melanoma syngeneic mouse model, the tumor growth rate was significantly delayed in mice treated with ATRA-incorporated/2OHOA-inserted liposomes compared with that in the control group. Immunohistochemical analyses revealed that the enhanced antitumor activity of ATRA-incorporated/2OHOA-inserted liposomes was due, at least in part, to increased induction of apoptosis. Collectively, our findings indicate that 2OHOA-inserted liposomes exhibit multiple advantages as antitumor drug carriers, including the ability to simultaneously deliver two anticancer drugs - 2OHOA and incorporated drug - to the tumor tissue. PMID- 29029597 TI - Identification of novel natural inhibitors of Opisthorchis felineus cytochrome P450 using structure-based screening and molecular dynamic simulation. AB - Opisthorchis felineus is the etiological agent of opisthorchiasis in humans. O. felineus cytochrome P450 (OfCYP450) is an important enzyme in the parasite xenobiotic metabolism. To identify the potential anti-opisthorchid compound, we conducted a structure-based virtual screening of natural compounds from the ZINC database (n = 1,65,869) against the OfCYP450. The ligands were screened against OfCYP450 in four sequential docking modes that resulted in 361 ligands having better docking score. These compounds were evaluated for Lipinski and ADMET prediction, and 10 compounds were found to fit well with re-docking studies. After refinement by docking and drug-likeness analyses, four potential inhibitors (ZINC2358298, ZINC8790946, ZINC70707116, and ZINC85878789) were identified. These ligands with reference compounds (itraconazole and fluconazole) were further subjected to molecular dynamics simulation (MDS) and binding energy analyses to compare the dynamic structure of protein after ligand binding and the stability of the OfCYP450 and bound complexes. The binding energy analyses were also calculated. The results suggested that the compounds had a negative binding energy with -259.41, -110.09, -188.25, -163.30, -202.10, and -158.79 kJ mol-1 for itraconazole, fluconazole, and compounds with IDs ZINC2358298, ZINC8790946, ZINC70707116, and ZINC85878789, respectively. These lead compounds displayed significant pharmacological and structural properties to be drug candidates. On the basis of MDS results and binding energy analyses, we concluded that ZINC8790946, ZINC70707116, and ZINC85878789 have excellent potential to inhibit OfCYP450. PMID- 29029596 TI - Additional Visualization via Smart Glasses Improves Accuracy of Wire Insertion in Fracture Surgery. AB - BACKGROUND: Smart glasses (SG) are a wearable device consisting of a small computer built into a head-mounted monitor (HMM) that can display various kinds of information. Lateral side visualization is displayed on the HMM of SG so the operator may also see it and the anteroposterior (AP) direction simultaneously. The present pilot study aimed to investigate the usefulness of SG in wire insertion for bone fracture. METHODS: We marked both the front and lateral sides of the shaft of an artificial femur bone. From the tip of the greater trochanter, we inserted a 2.4-mm Kirschner wire (K-wire) so that it could be directed toward the marks in both planes. Three surgeons enrolled in the study each performed 10 trials, both with SG (SG arm) and without (direct vision arm). We defined the error angle as the angle between the K-wire and the line connecting the marking point from the insertion point in both the front and lateral view images. We also measured the time it took to insert the K-wire in both arms. RESULTS: The SG had a significantly reduced (mean = 3.2 degrees ) error angle ( P = .02) when compared to the direct vision group (mean = 4.8 degrees ). However, no significant difference was found between direct vision (mean = 17.5 seconds) and SG arms (mean = 14.9 seconds) in the insertion time. CONCLUSION: While keeping the AP image view in primary focus, simultaneously viewing the lateral side of the surgical field using SG helps achieve more accurate wire insertion in surgery. PMID- 29029598 TI - A method for named entity normalization in biomedical articles: application to diseases and plants. AB - BACKGROUND: In biomedical articles, a named entity recognition (NER) technique that identifies entity names from texts is an important element for extracting biological knowledge from articles. After NER is applied to articles, the next step is to normalize the identified names into standard concepts (i.e., disease names are mapped to the National Library of Medicine's Medical Subject Headings disease terms). In biomedical articles, many entity normalization methods rely on domain-specific dictionaries for resolving synonyms and abbreviations. However, the dictionaries are not comprehensive except for some entities such as genes. In recent years, biomedical articles have accumulated rapidly, and neural network based algorithms that incorporate a large amount of unlabeled data have shown considerable success in several natural language processing problems. RESULTS: In this study, we propose an approach for normalizing biological entities, such as disease names and plant names, by using word embeddings to represent semantic spaces. For diseases, training data from the National Center for Biotechnology Information (NCBI) disease corpus and unlabeled data from PubMed abstracts were used to construct word representations. For plants, a training corpus that we manually constructed and unlabeled PubMed abstracts were used to represent word vectors. We showed that the proposed approach performed better than the use of only the training corpus or only the unlabeled data and showed that the normalization accuracy was improved by using our model even when the dictionaries were not comprehensive. We obtained F-scores of 0.808 and 0.690 for normalizing the NCBI disease corpus and manually constructed plant corpus, respectively. We further evaluated our approach using a data set in the disease normalization task of the BioCreative V challenge. When only the disease corpus was used as a dictionary, our approach significantly outperformed the best system of the task. CONCLUSIONS: The proposed approach shows robust performance for normalizing biological entities. The manually constructed plant corpus and the proposed model are available at http://gcancer.org/plant and http://gcancer.org/normalization , respectively. PMID- 29029599 TI - LiverWiki: a wiki-based database for human liver. AB - BACKGROUND: Recent advances in omics technology have produced a large amount of liver-related data. A comprehensive and up-to-date source of liver-related data is needed to allow biologists to access the latest data. However, current liver related data sources each cover only a specific part of the liver. It is difficult for them to keep pace with the rapid increase of liver-related data available at those data resources. Integrating diverse liver-related data is a critical yet formidable challenge, as it requires sustained human effort. RESULTS: We present LiverWiki, a first wiki-based database that integrates liver related genes, homolog genes, gene expressions in microarray datasets and RNA-Seq datasets, proteins, protein interactions, post-translational modifications, associated pathways, diseases, metabolites identified in the metabolomics datasets, and literatures into an easily accessible and searchable resource for community-driven sharing. LiverWiki houses information in a total of 141,897 content pages, including 19,787 liver-related gene pages, 17,077 homolog gene pages, 50,251 liver-related protein pages, 36,122 gene expression pages, 2067 metabolites identified in the metabolomics datasets, 16,366 disease-related molecules, and 227 liver disease pages. Other than assisting users in searching, browsing, reviewing, refining the contents on LiverWiki, the most important contribution of LiverWiki is to allow the community to create and update biological data of liver in visible and editable tables. This integrates newly produced data with existing knowledge. Implemented in mediawiki, LiverWiki provides powerful extensions to support community contributions. CONCLUSIONS: The main goal of LiverWiki is to provide the research community with comprehensive liver-related data, as well as to allow the research community to share their liver-related data flexibly and efficiently. It also enables rapid sharing new discoveries by allowing the discoveries to be integrated and shared immediately, rather than relying on expert curators. The database is available online at http://liverwiki.hupo.org.cn /. PMID- 29029600 TI - Clinical features and CKD-related quality of life in patients with CKD G3a and CKD G3b in China: results from the Chinese Cohort Study of Chronic Kidney Disease (C-STRIDE). AB - BACKGROUND: This study aimed to compare clinical features and health-related quality of life (HRQoL) in the Chinese chronic kidney disease (CKD) 3 population and determined the necessity of the subdivision of CKD3 in Chinese patients with CKD. METHODS: Participants with stage 3 CKD (18-74 years of age) were recruited at 39 clinical centers located at 28 cities in 22 provinces of China. The sociodemographic status, medical history, anthropometric measurements, and lifestyle behaviors were documented at entry, and blood and urine samples were collected. The estimated glomerular filtration rate was calculated using the CKD EPI creatinine equation. The HRQoL was evaluated using the kidney disease quality of-life instrument. A linear regression model was used to estimate the association between HRQoL and CKD stages (G3b vs G3a). RESULTS: The levels of intact parathyroid hormone, systolic blood pressure, uric acid, and high-density lipoprotein cholesterol were statistically significantly higher, whereas the levels of serum bicarbonate and hemoglobin were statistically significantly lower in the G3b group compared with the G3a group. Compared with CKD G3a group, the proportions of subjects with hyperuricemia and anemia were significantly higher in CKD G3b group (61.4% vs. 52.0% and 26.4% vs. 17.9%, respectively, P< 0.01). The HRQoL scores in "physical functioning (PCS)", "symptoms and problems", "effects of the kidney disease" and "burden of the kidney disease" were statistically significantly lower in the CKD G3b group compared with the CKD G3a group (90.88 +/- 11.05 vs. 89.30 +/- 11.52, 88.29 +/- 11.94 vs. 86.49 +/- 13.45, 55.86 +/- 26.40 vs. 52.10 +/- 27.64, 46.56 +/- 8.16 vs. 44.51 +/- 9.22, respectively, P< 0.01). Further, CKD G3b was associated with a lower score of physical functioning compared with G3a (regression coefficient =-1.12 [95%CI: 2.23, -0.16]). CONCLUSIONS: The preliminary results of this study suggested that modest differences existed in many important clinical features and KDQoL between patients with G3a and G3b CKD in a Chinese population. Also, a significant association between CKD3 subdivision of the disease and PCS was detected. Although further work is needed, we can speculate based on these results the CKD3 subdivision may be clinically meaningful for Chinese patients with CKD. PMID- 29029601 TI - Prevalence and risk factors for myopia in older adult east Chinese population. AB - BACKGROUND: To determine the prevalence and associated factors for myopia and high myopia among older population in a rural community in Eastern China. METHODS: A community-based, cross-sectional survey was conducted in the Weitang town located in Suzhou, an urban metropolis in East China. A total of 5613 Chinese residents aged 60 years and older were invited to complete a questionnaire and participated in a detailed eye examination,including measurements of visual acuity and refractive error using autorefraction and subjective refraction. Myopia and high myopia was defined as SE < -0.5 diopters (D) and < -5.0 D, respectively. RESULTS: Among the 5613 participating individuals, 4795 (85.4%) complete refraction data of phakic right eye was included for analysis. The age-adjusted prevalence was 21.1% (95% confidence interval [CI], 19.9-22.2) for myopia and 2.5% (95% CI, 2.1-2.9) for high myopia. The prevalence of myopia tended to increase significantly with age(p < 0.001),and women had a higher rate of myopia than men (p < 0.001). According to multivariate logistic regression analysis, adults who were older (odds ration[OR]:1.05; 95% CI:1.04-1.07), spent more time for sleeping at night (OR:1.12;95% CI: 1.06 1.18),or had cataract (OR:1.60;95% CI:1.36-1.88) and family history of myopia (OR:1.47;95% CI:1.23-1.77), are more susceptible to myopia (p < 0.001). People who had older age, family history, cataract and specially longer night-time sleep duration, would have a higher risk of myopia. CONCLUSION: Myopia and high myopia among rural old adult population in Eastern China presents common. The current literature unanticipated suggests that there was a positive significant association between prevalence of myopia and night-time sleep duration among adult. Our data provide some evidence of this relationship and highlight the need for larger studies to further investigate this relationship longitudinally and explore mechanism therein. PMID- 29029602 TI - eRP arrangement: a strategy for assembled genomic contig rearrangement based on replication profiling in bacteria. AB - BACKGROUND: The reduced cost of sequencing has made de novo sequencing and the assembly of draft microbial genomes feasible in any ordinary biology lab. However, the process of finishing and completing the genome remains labor intensive and computationally challenging in some cases, such as in the study of complete genome sequences, genomic rearrangements, long-range syntenic relationships, and structural variations. METHODS: Here, we show a contig reordering strategy based on experimental replication profiling (eRP) to recapitulate the bacterial genome structure within draft genomes. During the exponential growth phase, the majority of bacteria show a global genomic copy number gradient that is enriched near the replication origin and gradually declines toward the terminus. Therefore, if genome sequencing is performed with appropriate timing, the short-read coverage reflects this copy number gradient, providing information about the contig positions relative to the replication origin and terminus. RESULTS: We therefore investigated the appropriate timing for genomic DNA sampling and developed an algorithm for the reordering of the contigs based on eRP. As a result, this strategy successfully recapitulates the genomic structure of various structural mutants with draft genome sequencing. CONCLUSIONS: Our strategy was successful for contig rearrangement with intracellular DNA replication behavior mechanisms and can be applied to almost all bacteria because the DNA replication system is highly conserved. Therefore, eRP makes it possible to understand genomic structural information and long-range syntenic relationships using a draft genome that is based on short reads. PMID- 29029604 TI - Trauma burden in Tanzania: a one-day survey of all district and regional public hospitals. AB - BACKGROUND: Trauma contributes significantly to the burden of disease and mortality throughout the world, but particularly in developing countries. In Tanzania, there is an enormous research gap on trauma; the limited data available reflects realities in cities and areas with moderately- to highly-resourced treatment centers. Our aim was to provide a description of the injury epidemiology across all of Tanzania. Our data will serve as a basis for future larger studies. METHODS: This is a subgroup analysis of a cross-sectional, prospective study of the clinical epidemiology of patients presenting at all public district and regional hospitals in Tanzania. The study was conducted between May 2012 and December 2012. A team of emergency doctors used a purpose designed data collection sheet to gather the demographic and clinical information of all patients presenting during the day-site visit to each hospital. Descriptive statistics, including means, standard deviations, medians, and ranges are reported. RESULTS: A total of 5227 patients were seen in 24-h period in 105 (100% response rate) district (or designated district) and regional hospitals in mainland Tanzania. Of these patients, 508 (9.7%) presented with trauma-related complaints. Among patients with trauma-related complaints, 286 (56.3%) were male, and the overall median age of 30 (interquartile range of 22-35) years. Road traffic crash was the most common mechanism of injury, accounting for 227 (44.7%) complaints. Open wounds and bone fractures were the two most frequent diagnoses, with a combined 300 (59%) cases. Most of the patients - 325 (64%) - were discharged, 11 (2.2%) went to operating theatres and 4 (0.8%) of patients died while receiving care at the acute intake areas. CONCLUSIONS: Trauma-related complaints constitute a substantial burden among patients seeking care in acute intake areas of hospitals across Tanzania. There is a need to develop, implement and study systems that can support the improvement of trauma care and optimize outcomes of trauma patients. PMID- 29029603 TI - The pathophysiological role of mitochondrial oxidative stress in lung diseases. AB - Mitochondria are critically involved in reactive oxygen species (ROS)-dependent lung diseases, such as lung fibrosis, asbestos, chronic airway diseases and lung cancer. Mitochondrial DNA (mtDNA) encodes mitochondrial proteins and is more sensitive to oxidants than nuclear DNA. Damage to mtDNA causes mitochondrial dysfunction, including electron transport chain impairment and mitochondrial membrane potential loss. Furthermore, damaged mtDNA also acts as a damage associated molecular pattern (DAMP) that drives inflammatory and immune responses. In this review, crosstalk among alveolar epithelial cells, alveolar macrophages and mitochondria is examined. ROS-related transcription factors and downstream cell signaling pathways are also discussed. We conclude that targeting oxidative stress with antioxidant agents, such as thiol molecules, polyphenols and superoxide dismutase (SOD), and promoting mitochondrial biogenesis should be considered as novel strategies for treating lung diseases that currently have no effective treatment options. PMID- 29029605 TI - Monitoring multiple myeloma by idiotype-specific peptide binders of tumor-derived exosomes. AB - Tumor-derived exosomes (TDEs) play a pivotal role in tumor establishment and progression, and are emerging biomarkers for tumor diagnosis in personalized medicine. To date, there is a lack of efficient technology platforms for exosome isolation and characterization. Multiple myeloma (MM) is an incurable B-cell malignancy due to the rapid development of drug-resistance. MM-released exosomes express the immunoglobulin B-cell receptor (Ig-BCR) of the tumor B-cells, which can be targeted by Idiotype-binding peptides (Id-peptides). In this study, we analyzed the production of MM-released exosomes in the murine 5T33MM multiple myeloma model as biomarkers of tumor growth. To this end, we selected Id-peptides by screening a phage display library using as bait the Ig-BCR expressed by 5T33MM cells. By FACS, the FITC-conjugated Id-peptides detected the MM-released exosomes in the serum of 5T33MM-engrafted mice, levels of which are correlated with tumor progression at an earlier time point compared to serum paraprotein. These results indicate that Id-peptide-based recognition of MM-released exosomes may represent a very sensitive diagnostic approach for clinical evaluation of disease progression. PMID- 29029606 TI - Patient-centered professional practice models for managing low back pain in older adults: a pilot randomized controlled trial. AB - BACKGROUND: Low back pain is a debilitating condition for older adults, who may seek healthcare from multiple providers. Few studies have evaluated impacts of different healthcare delivery models on back pain outcomes in this population. The purpose of this study was to compare clinical outcomes of older adults receiving back pain treatment under 3 professional practice models that included primary medical care with or without chiropractic care. METHODS: We conducted a pilot randomized controlled trial with 131 community-dwelling, ambulatory older adults with subacute or chronic low back pain. Participants were randomly allocated to 12 weeks of individualized primary medical care (Medical Care), concurrent medical and chiropractic care (Dual Care), or medical and chiropractic care with enhanced interprofessional collaboration (Shared Care). Primary outcomes were low back pain intensity rated on the numerical rating scale and back-related disability measured with the Roland-Morris Disability Questionnaire. Secondary outcomes included clinical measures, adverse events, and patient satisfaction. Statistical analyses included mixed-effects regression models and general estimating equations. RESULTS: At 12 weeks, participants in all three treatment groups reported improvements in mean average low back pain intensity [Shared Care: 1.8; 95% confidence interval (CI) 1.0 to 2.6; Dual Care: 3.0; 95% CI 2.3 to 3.8; Medical Care: 2.3; 95% CI 1.5 to 3.2)] and back-related disability (Shared Care: 2.8; 95% CI 1.6 to 4.0; Dual Care: 2.5; 95% CI 1.3 to 3.7; Medical Care: 1.5; 95% CI 0.2 to 2.8). No statistically significant differences were noted between the three groups on the primary measures. Participants in both models that included chiropractic reported significantly better perceived low back pain improvement, overall health and quality of life, and greater satisfaction with healthcare services than patients who received medical care alone. CONCLUSIONS: Professional practice models that included primary care and chiropractic care led to modest improvements in low back pain intensity and disability for older adults, with chiropractic-inclusive models resulting in better perceived improvement and patient satisfaction over the primary care model alone. TRIAL REGISTRATION: Clinicaltrials.gov, NCT01312233 , 4 March 2011. PMID- 29029607 TI - miRNAs involved in the development and differentiation of fertile and sterile flowers in Viburnum macrocephalum f. keteleeri. AB - BACKGROUND: Sterile and fertile flowers are important evolutionary developmental phenotypes in angiosperm flowers. The development of floral organs, critical in angiosperm reproduction, is regulated by microRNAs (miRNAs). However, the mechanisms underpinning the miRNA regulation of the differentiation and development of sterile and fertile flowers remain unclear. RESULTS: Here, based on investigations of the morphological differences between fertile and sterile flowers, we used high-throughput sequencing to characterize the miRNAs in the differentiated floral organs of Viburnum macrocephalum f. keteleeri. We identified 49 known miRNAs and 67 novel miRNAs by small RNA (sRNA) sequencing and bioinformatics analysis, and 17 of these known and novel miRNA precursors were validated by polymerase chain reaction (PCR) and Sanger sequencing. Furthermore, by comparing the sequencing results of two sRNA libraries, we found that 30 known and 39 novel miRNA sequences were differentially expressed, and 35 were upregulated and 34 downregulated in sterile compared with fertile flowers. Combined with their predicted targets, the potential roles of miRNAs in V. macrocephalum f. keteleeri flowers include involvement in floral organogenesis, cell proliferation, hormonal pathways, and stress responses. miRNA precursors and targets were further validated by quantitative real-time PCR (qRT-PCR). Specifically, miR156a-5p, miR156g, and miR156j expression levels were significantly higher in fertile flowers than in sterile flowers, while SPL genes displayed the opposite expression pattern. Considering that the targets of miR156 are predicted to be SPL genes, we propose that miR156 may be involved in the regulation of stamen development in V. macrocephalum f. keteleeri. CONCLUSIONS: We identified miRNAs differentially expressed between fertile and sterile flowers in V. macrocephalum f. keteleeri and provided new insights into the important regulatory roles of miRNAs in the differentiation and development of fertile and sterile flowers. PMID- 29029609 TI - Modelling the implications of stopping vector control for malaria control and elimination. AB - BACKGROUND: Increasing coverage of malaria vector control interventions globally has led to significant reductions in disease burden. However due to its high recurrent cost, there is a need to determine if and when vector control can be safely scaled back after transmission has been reduced. METHODS AND FINDINGS: A mathematical model of Plasmodium falciparum malaria epidemiology was simulated to determine the impact of scaling back vector control on transmission and disease. A regression analysis of simulation results was conducted to derive predicted probabilities of resurgence, severity of resurgence and time to resurgence under various settings. Results indicate that, in the absence of secular changes in transmission, there are few scenarios where vector control can be removed without high expectation of resurgence. These, potentially safe, scenarios are characterized by low historic entomological inoculation rates, successful vector control programmes that achieve elimination or near elimination, and effective surveillance systems with high coverage and effective treatment of malaria cases. CONCLUSIONS: Programmes and funding agencies considering scaling back or withdrawing vector control from previously malaria endemic areas need to first carefully consider current receptivity and other available interventions in a risk assessment. Surveillance for resurgence needs to be continuously conducted over a long period of time in order to ensure a rapid response should vector control be withdrawn. PMID- 29029608 TI - Association of trace metal elements with lipid profiles in type 2 diabetes mellitus patients: a cross sectional study. AB - BACKGROUND: It is well known that dyslipidemia and chronic hyperglycemia increase the onset of diabetes and diabetic complication. The aim of this study is to see the association of trace metals elements and lipid profile among type 2 diabetes mellitus patients. METHODS: The study was conducted on 214 type 2 diabetic patients at Jimma University Specialized Hospital, Jimma, Ethiopia. All the eligible study participants responded to the structured interviewer administered questionnaire and fasting venous blood was drawn for biochemical analysis. Trace metal elements (zinc(Zn+2), magnesium(Mg+2), chromium(Cr+3), calcium(Ca+2), phosphorus(Po4-3), manganese(Mn+2), copper(Cu+2), and iron(Fe+3)) and lipid profiles (total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein (HDL-C), and triglycerides (TG)) were measured by atomic absorption spectrophotometry and enzymatic determination method respectively. Data were analyzed by SPSS version 24 software for windows. Bonferroni correction for multiple statistical comparisons was used and a p-value less than 0.01 were accepted as a level of significance. RESULT: The mean age of study participants was 42.95(+/-12.6) with an average of 5.83(+/-3.1) years being diagnosed with diabetes mellitus. The BMI of female (27.1(+/-4.9)) was significantly higher than male (25.21(+/-4.2)). BMI shows positive and significant (p < 0.01) association with lipid profiles (TC, LDL-C, and TG) among type 2 diabetic patients in the liner regression model. In addition, WH-R was positively associated with TG. In Pearson partial correlation adjusted for sex and age, Za+2 shown to have statistically significant and negative correlations with TC, LDL-C and with TG. Mg+2 and Cr+2 negatively and significantly correlated with the lipid profile TC and LDL-C. Ca+2 negatively correlated with TC and TG. Po-34 positively correlated with HDL-C; iron negatively correlated with TC. However, in the liner regression model, only calcium positively and significantly (Beta = -0.21, p < 0.01) associated with TG. CONCLUSION: In the current study, a negative correlation was observed between trace metal elements (Zn+2, Mg+2, Cr+3, Ca+2 and Fe+3) and lipid profile (TC, LDL-C and TG) among type 2 diabetes mellitus patients. In addition, Ca+2 observed to be associated with TG. Future studies are highly advised to uncover the bidirectional association between trace metal element and dyslipidemia in diabetic patients. PMID- 29029610 TI - Infection by and genotype characteristics of Enterocytozoon bieneusi in HIV/AIDS patients from Guangxi Zhuang autonomous region, China. AB - BACKGROUND: Enterocytozoon bieneusi has been increasingly reported to infect humans and various mammals. Microsporidia cause diarrhea in HIV-infected patients worldwide. PCR amplification and sequencing based on the internal transcribed spacer region have been used to describe the genotypes of E. bieneusi and transmission of microsporidiosis. METHODS: In this study, we examined E. bieneusi infection and genotypes in HIV-positive patients in Guangxi, China. Stool specimens were collected from 285 HIV-positive patients and 303 HIV-negative individuals. E. bieneusi genotypes were characterized using nested PCR and sequencing. RESULTS: Thirty-three (11.58%) HIV-positive patients were infected with microsporidia, and no infection was found in the 303 healthy controls. Three new genotypes were identified and named as GX25, GX456, and GX458; four known genotypes, PigEBITS7, Type IV/K, D, and Ebpc, were also identified. Our data showed that the positive rate for microsporidia was significantly higher in the rural patients than in the other occupation groups. In addition, the positive rate for microsporidia was significantly higher in the patients who drink unboiled water than in those with other drinking water sources. CONCLUSIONS: Our results will provide baseline data for preventing and controlling E. bieneusi infection in HIV/AIDS patients. Further studies are required to clarify the epidemiology and potential sources of microsporidia. Our study showed that microsporidium infection occurs in the HIV/AIDS patients in Guangxi, China. PMID- 29029612 TI - The relative efficiency of Iranian's rural traffic police: a three-stage DEA model. AB - BACKGROUND: Road traffic Injuries (RTIs) as a health problem imposes governments to implement different interventions. Target achievement in this issue required effective and efficient measures. Efficiency evaluation of traffic police as one of the responsible administrators is necessary for resource management. Therefore, this study conducted to measure Iran's rural traffic police efficiency. METHODS: This was an ecological study. To obtain pure efficiency score, three-stage DEA model was conducted with seven inputs and three output variables. At the first stage, crude efficiency score was measured with BCC-O model. Next, to extract the effects of socioeconomic, demographic, traffic count and road infrastructure as the environmental variables and statistical noise, the Stochastic Frontier Analysis (SFA) model was applied and the output values were modified according to similar environment and statistical noise conditions. Then, the pure efficiency score was measured using modified outputs and BCC-O model. RESULTS: In total, the efficiency score of 198 police stations from 24 provinces of 31 provinces were measured. The annual means (standard deviation) of damage, injury and fatal accidents were 247.7 (258.4), 184.9 (176.9), and 28.7 (19.5), respectively. Input averages were 5.9 (3.0) patrol teams, 0.5% (0.2) manpower proportions, 7.5 (2.9) patrol cars, 0.5 (1.3) motorcycles, 77,279.1 (46,794.7) penalties, 90.9 (2.8) cultural and educational activity score, 0.7 (2.4) speed cameras. The SFA model showed non-significant differences between police station performances and the most differences attributed to the environmental and random error. One-way main road, by road, traffic count and the number of household owning motorcycle had significant positive relations with inefficiency score. The length of freeway/highway and literacy rate variables had negative relations, significantly. Pure efficiency score was with mean of 0.95 and SD of 0.09. CONCLUSIONS: Iran's traffic police has potential opportunity to reduce RTIs. Adjusting police performance with environmental conditions is necessary. Capability of DEA method in setting quantitative targets for every station induces motivation for managers to reduce RTIs. Repetition of this study is recommended, annually. PMID- 29029611 TI - Identification of 15 candidate structured noncoding RNA motifs in fungi by comparative genomics. AB - BACKGROUND: With the development of rapid and inexpensive DNA sequencing, the genome sequences of more than 100 fungal species have been made available. This dataset provides an excellent resource for comparative genomics analyses, which can be used to discover genetic elements, including noncoding RNAs (ncRNAs). Bioinformatics tools similar to those used to uncover novel ncRNAs in bacteria, likewise, should be useful for searching fungal genomic sequences, and the relative ease of genetic experiments with some model fungal species could facilitate experimental validation studies. RESULTS: We have adapted a bioinformatics pipeline for discovering bacterial ncRNAs to systematically analyze many fungal genomes. This comparative genomics pipeline integrates information on conserved RNA sequence and structural features with alternative splicing information to reveal fungal RNA motifs that are candidate regulatory domains, or that might have other possible functions. A total of 15 prominent classes of structured ncRNA candidates were identified, including variant HDV self-cleaving ribozyme representatives, atypical snoRNA candidates, and possible structured antisense RNA motifs. Candidate regulatory motifs were also found associated with genes for ribosomal proteins, S-adenosylmethionine decarboxylase (SDC), amidase, and HexA protein involved in Woronin body formation. We experimentally confirm that the variant HDV ribozymes undergo rapid self cleavage, and we demonstrate that the SDC RNA motif reduces the expression of SAM decarboxylase by translational repression. Furthermore, we provide evidence that several other motifs discovered in this study are likely to be functional ncRNA elements. CONCLUSIONS: Systematic screening of fungal genomes using a computational discovery pipeline has revealed the existence of a variety of novel structured ncRNAs. Genome contexts and similarities to known ncRNA motifs provide strong evidence for the biological and biochemical functions of some newly found ncRNA motifs. Although initial examinations of several motifs provide evidence for their likely functions, other motifs will require more in-depth analysis to reveal their functions. PMID- 29029613 TI - Right precordial-directed electrocardiographical markers identify arrhythmogenic right ventricular cardiomyopathy in the absence of conventional depolarization or repolarization abnormalities. AB - BACKGROUND: Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) carries a risk of sudden death. We aimed to assess whether vectorcardiographic (VCG) parameters directed toward the right heart and a measured angle of the S wave would help differentiate ARVD/C with otherwise normal electrocardiograms from controls. METHODS: Task Force 2010 definite ARVD/C criteria were met for all patients. Those who did not fulfill Task Force depolarization or repolarization criteria (-ECG) were compared with age and gender-matched control subjects. Electrocardiogram measures of a 3-dimentional spatial QRS-T angle, a right precordial-directed orthogonal QRS-T (RPD) angle, a root mean square of the right sided depolarizing forces (RtRMS-QRS), QRS duration (QRSd) and the corrected QT interval (QTc), and a measured angle including the upslope and downslope of the S wave (S-wave angle) were assessed. RESULTS: Definite ARVD/C was present in 155 patients by 2010 Task Force criteria (41.7 +/- 17.6 years, 65.2% male). -ECG ARVD/C patients (66 patients) were compared to 66 control patients (41.7 +/- 17.6 years, 65.2% male). All parameters tested except the QRSd and QTc significantly differentiated -ECG ARVD/C from control patients (p < 0.004 to p < 0.001). The RPD angle and RtRMS-QRS best differentiated the groups. Combined, the 2 novel criteria gave 81.8% sensitivity, 90.9% specificity and odds ratio of 45.0 (95% confidence interval 15.8 to 128.2). CONCLUSION: ARVD/C disease process may lead to development of subtle ECG abnormalities that can be distinguishable using right-sided VCG or measured angle markers better than the spatial QRS-T angle, the QRSd or QTc, in the absence of Taskforce ECG criteria. PMID- 29029614 TI - Field assessment of a novel spatial repellent for malaria control: a feasibility and acceptability study in Mondulkiri, Cambodia. AB - BACKGROUND: Large-scale use of insecticide-treated nets and indoor residual spraying have contributed to a significant decrease in malaria transmission worldwide. Further reduction and progress towards elimination, however, require complementary control measures which can address the remaining gaps in protection from mosquito bites. Following the development of novel pyrethroids with high knockdown effects on malaria vectors, programmatic use of spatial repellents has been suggested as one potential strategy to fill the gaps. This report explores social and contextual factors that may influence the relevance, uptake and sustainable use of a spatial repellent in two remote villages in Mondulkiri province, Cambodia, with endemic malaria transmission. The repellent consisted of polyethylene emanators, held in an open plastic frame and impregnated with 10% metofluthrin. RESULTS: In a baseline survey, 90.9% of households in Ou Chra (n = 30/33) and 96.6% in Pu Cha (n = 57/59) were interviewed. Behavioural data were collected for all household occupants (n = 448). In both villages, there were times and places in which people remained exposed to mosquito bites. Prior to the installation of the repellent, 50.6 and 59.5% of respondents noted that bites occurred "very often" inside the house and in the outdoor area surrounding the house, respectively. Indoor biting was reported to occur more frequently in the evening, followed by at night, while outdoor biting occurred more frequently in the early morning. In a follow-up survey, spatial repellents were well received in both villages, although 63.2% of respondents would not replace bed nets with repellents. Most participants (96.6%) were willing to use the product again; the mean willingness to pay was US$ 0.3 per unit. A preference for local procurement methods emerged. CONCLUSION: Widespread use of spatial repellents would not fill all protective gaps, but, if their entomological efficacy can be ascertained, outdoor application has the potential to enhance vector control strategies in Cambodia. Successful implementation would require subsidisation and integration with the existing national malaria control strategy. It is hoped that this study, while contributing to a better understanding of the social contexts of residual malaria transmission, will generate further interest in the evaluation of spatial repellents for malaria control. PMID- 29029615 TI - Fenofibrate decreases the bone quality by down regulating Runx2 in high-fat-diet induced Type 2 diabetes mellitus mouse model. AB - BACKGROUND: This study is to investigate the effect of fenofibrate on the bone quality of Type 2 diabetes mellitus (T2DM) mouse model. METHODS: T2DM mouse model was induced by high-fat-diet, and the mice were treated with fenofibrate (100 mg/kg) (DIO-FENO) or PBS (DIO-PBS) for 4 weeks. The bone microstructure and biomechanical properties of femora were analyzed by micro-CT and 3-Point bending test. The protein expression was detected by immunohistochemical staining and Western blot. The cell apoptosis was evaluated by TUNEL staining. The Bcl2, caspase 3, and osteoblast marker genes were detected by RT-qPCR. RESULTS: The biomechanical properties of bones from DIO-FENO group were significantly lower than those in the control and DIO-PBS groups. Besides, the trabecular number was lower than those of the other groups, though the cortical porosity was decreased compared with that of DIO-PBS group because of the increase of apoptotic cells. The expression of osteocalcin and collagen I were decreased after treatment with fenofibrate in T2DM mice. Moreover, the cell viability was decreased after treated with different concentrations of fenofibrate, and the expression of Runx2 decreased after treated with high dose of fenofibrate. CONCLUSION: Fenofibrate decreases the bone quality of T2DM mice through decreasing the expression of collagen I and osteocalcin, which may be resulted from the down regulation of Runx2 expression. PMID- 29029616 TI - Short term effectiveness and experiences of a peer guided web-based self management intervention for young adults with juvenile idiopathic arthritis. AB - BACKGROUND: A web-based self-management intervention guided by peer-trainers was developed to support young adults' self-management in coping with Juvenile Idiopathic Arthritis (JIA). To investigate its effectiveness, a randomized controlled trial (RCT) was conducted. In addition, the content of the chat and participants' goals were studied to identify underlying processes. METHODS: An RCT with a six-month follow up period was conducted among 72 young adults with JIA, aged between 16 and 25 years old, randomly assigned to the intervention or to the usual care control group. After 24 weeks, in both groups 24 participants completed all measurements. Intentions to treat analyses were carried out by means of linear mixed models for longitudinal measurements. With self-efficacy as primary outcome, self-management, disease activity, quality of life, absenteeism of school/work, health care medication use and adherence to the intervention were studied. The participants' goals, personal achievements, interactions on the chat, and their appreciation of the intervention were analyzed using thematic analyses. RESULTS: No significant differences were found on self-efficacy, quality of life, and self-management between the participants of the control group and the intervention group. In the intervention group, modeling and sharing experiences were the most recognized themes. Fifty-five goals were formulated and divided into the following categories: improvement and maintaining balance, setting and recognizing boundaries, communicating and coping with incomprehension. Adherence, appreciation of the own learning experience, and personal achievements were rated positively. CONCLUSION: The web-based intervention did not lead to an improvement of self-efficacy. However, additional qualitative analyses showed that the intervention was appreciated and valuable for the participants. More research is needed on how to measure the added value of this intervention compared to the usual care. TRIAL REGISTRATION: Trial registration number NTR4679 . PMID- 29029617 TI - Association of red cell distribution width with all-cause and cardiovascular specific mortality in African American and white adults: a prospective cohort study. AB - BACKGROUND: While the mortality rate is declining in the United States, the life expectancy gap among different population groups suggests a need to identify biomarkers to improve early identification of individuals at risk. Red cell distribution width (RDW), a measure of anisocytosis, is an emerging biomarker of chronic disease morbidity and mortality, particularly in the elderly. However, little is known about its association with mortality risk in younger adults. The objectives of this study were to investigate the association between RDW and overall and cause-specific mortality risk, and to identify novel determinants of RDW level. METHODS: We used prospectively collected data from the Healthy Aging in Neighborhoods of Diversity across the Life Span study conducted in Baltimore, Maryland. At baseline (2004-2009), the study recruited 3720 African American and white men and women aged 30-64 years. Participants provided peripheral venous blood for RDW measurement as part of complete blood count, and genotyping. Mortality status was ascertained using the National Death Index database through December 31, 2013. Multivariable adjusted Cox proportional hazards regression models were fitted to assess mortality risk, and multiple linear regression models to identify determinants of RDW level. RESULTS: Participants' mean age was 48.1 (9.2) years. Of 2726 participants included in the present analyses, 57% were African Americans, and 56% were women. After 18,424 person-years of follow-up time, there were 226 deaths, and the leading cause of death were cardiovascular diseases (31.9%). Participants in the highest quartile of RDW had a 1.73-fold increased all-cause mortality risk (highest quartile vs. lowest quartile, multivariable adjusted hazard ratio = 1.73, 95% confidence interval: 1.10-2.74, p trend = 0.006). This effect was significantly modified by body mass index (p interaction = 0.004). Similar risk was observed for cardiovascular disease specific mortality. Independent of body mass index, waist-hip ratio and illicit drug use were significantly associated with RDW. CONCLUSIONS: Elevated RDW was associated with a substantial risk of all-cause and cardiovascular disease specific mortalities that was modified by body mass index. Central obesity and illicit drug use influence RDW level. In vulnerable populations at-risk for health disparities, RDW could provide a useful and inexpensive biomarker of mortality. PMID- 29029618 TI - Balneotherapeutic effects of high mineral spring water on the atopic dermatitis like inflammation in hairless mice via immunomodulation and redox balance. AB - BACKGROUND: Atopic dermatitis (AD) is a chronic relapsing allergic inflammatory skin disease that currently affects millions of children and adults worldwide. Drugs used to treat these inflammatory diseases include anti-histamines, corticosteroids and calcineurin inhibitors but these drugs have their limitations such as adverse effects with their long-term usage. Thus, researcher's interest in several alternative and complementary therapies are continually growing and balneotherapy is one of these approaches. Therefore, we investigate the bathing effect of high concentration mineral spring water (HMW) on redox balance and immune modulation in 2,4-dinitrochlorobenzene (DNCB)-induced atopic dermatitis like inflammation in hairless mice. METHODS: We induced AD-like inflammation by application of DNCB on the dorsal skin of female skh-1 hairless mice. The mice were treated with 100% pure HMW (PHMW) and 10% diluted HMW (DHMW) through bathing once a day for 4 weeks. Tacrolimus ointment (0.1%) was used as positive control (PC) and only DNCB treatment as negative control (NeC) group. The severity of skin lesion inflammation was assessed through clinical scoring and observing scratching behavior. Levels of immunoglobulin E (IgE) and inflammatory cytokines in serum were detected by ELISA and multiplex bead array system, and the levels of oxidative stress-related biomarkers and antioxidant enzyme were also measured. RESULTS: We found that HMW significantly decreased the scratching behavior in PHMW and DHMW groups at the 2nd week and in PHMW group at 4th week compared to NeC group. Likewise, serum IgE level was significantly decreased in DHMW group as compared to NeC group. In line, the level of inflammatory cytokines in serum such as interleukin (IL)-1beta, IL-13 and tumor necrosis factor-alpha were significantly inhibited in PHMW and DHMW groups compared to NeC group. In parallel, total reactive oxygen species (ROS) of serum level was significantly decreased in PHMW treatment groups compared to NeC group. Consistently, serum malondialdehyde (MDA) level in PHMW group was lower than in NeC group. By contrast, glutathione peroxidase (GPx) activity was significantly enhanced in PHMW than NeC. CONCLUSION: Collectively, our study indicates a balneotherapeutic effect of HMW on DNCB-induced AD like inflammation in hairless mice via immunomodulation and redox balance. PMID- 29029619 TI - Malaria prevalence, prevention and treatment seeking practices among nomadic pastoralists in northern Senegal. AB - BACKGROUND: Malaria transmission in Senegal is highly stratified, from low in the dry north to moderately high in the moist south. In northern Senegal, along the Senegal River Valley and in the Ferlo semi-desert region, annual incidence is less than five cases per 1000 inhabitants. Many nomadic pastoralists have permanent dwellings in the Ferlo Desert and Senegal River Valley, but spend dry season in the south with their herds, returning north when the rains start, leading to a concern that this population could contribute to ongoing transmission in the north. METHODS: A modified snowball sampling survey was conducted at six sites in northern Senegal to determine the malaria prevention and treatment seeking practices and parasite prevalence among nomadic pastoralists in the Senegal River Valley and the Ferlo Desert. Nomadic pastoralists aged 6 months and older were surveyed during September and October 2014, and data regarding demographics, access to care and preventive measures were collected. Parasite infection was detected using rapid diagnostic tests (RDTs), microscopy (thin and thick smears) and polymerase chain reaction (PCR). Molecular barcodes were determined by high resolution melting (HRM). RESULTS: Of 1800 participants, 61% were male. Sixty-four percent had at least one bed net in the household, and 53% reported using a net the night before. Only 29% had received a net from a mass distribution campaign. Of the 8% (142) who reported having had fever in the last month, 55% sought care, 20% of whom received a diagnostic test, one-third of which (n = 5) were reported to be positive. Parasite prevalence was 0.44% by thick smear and 0.50% by PCR. None of the molecular barcodes identified among the nomadic pastoralists had been previously identified in Senegal. CONCLUSIONS: While access to and utilization of malaria control interventions among nomadic pastoralists was lower than the general population, parasite prevalence was lower than expected and sheds doubt on the perception that they are a source of ongoing transmission in the north. The National Malaria Control Program is making efforts to improve access to malaria prevention and case management for nomadic populations. PMID- 29029621 TI - Uncertainty on the effectiveness and safety of rivaroxaban in premenopausal women with atrial fibrillation: empirical evidence needed. AB - BACKGROUND: Novel anticoagulations (NOACs) are increasingly prescribed for the prevention of stroke in premenopausal women with atrial fibrillation. Small studies suggest NOACs are associated with a higher risk of abnormal uterine bleeds than vitamin K antagonists (VKAs). Because there is no direct empirical evidence on the benefit/risk profile of rivaroxaban compared to VKAs in this subgroup, we synthesize available indirect evidence, estimate decision uncertainty on the treatments, and assess whether further research in premenopausal women is warranted. METHODS: A Markov model with annual cycles and a lifetime horizon was developed comparing rivaroxaban (the most frequently prescribed NOAC in this population) and VKAs. Clinical event rates, associated quality adjusted life years, and health care costs were obtained from different sources and adjusted for gender, age, and history of stroke. A Monte Carlo simulation with 10,000 iterations was then performed for a hypothetical cohort of premenopausal women, estimated to be reflective of the population of premenopausal women with AF in The Netherlands. RESULTS: In the simulation, rivaroxaban is the better treatment option for the prevention of ischemic strokes in premenopausal women in 61% of the iterations. Similarly, this is 98% for intracranial hemorrhages, 24% for major abnormal uterine bleeds, 1% for minor abnormal uterine bleeds, 9% for other major extracranial hemorrhages, and 23% for other minor extracranial hemorrhages. There is a 78% chance that rivaroxaban offers the most quality-adjusted life years. The expected value of perfect information in The Netherlands equals 122 quality-adjusted life years and 22 million Euros. CONCLUSIONS: There is a 22% risk that rivaroxaban offers a worse rather than a better benefit/risk profile than vitamin K antagonists in premenopausal women. Although rivaroxaban is preferred over VKAs in this population, further research is warranted, and should preferably take the shape of an internationally coordinated registry study including other NOACs. PMID- 29029620 TI - TGFbeta superfamily signaling and uterine decidualization. AB - Decidualization is an intricate biological process where extensive morphological, functional, and genetic changes take place in endometrial stromal cells to support the development of an implanting blastocyst. Deficiencies in decidualization are associated with pregnancy complications and reproductive diseases. Decidualization is coordinately regulated by steroid hormones, growth factors, and molecular and epigenetic mechanisms. Transforming growth factor beta (TGFbeta) superfamily signaling regulates multifaceted reproductive processes. However, the role of TGFbeta signaling in uterine decidualization is poorly understood. Recent studies using the Cre-LoxP strategy have shed new light on the critical role of TGFbeta signaling machinery in uterine decidualization. Herein, we focus on reviewing exciting findings from studies using both mouse genetics and in vitro cultured human endometrial stromal cells. We also delve into emerging mechanisms that underlie decidualization, such as non-coding RNAs and epigenetic modifications. We envision that future studies aimed at defining the interrelationship among TGFbeta signaling circuitries and their potential interactions with epigenetic modifications/non-coding RNAs during uterine decidualization will open new avenues to treat pregnancy complications associated with decidualization deficiencies. PMID- 29029622 TI - Paracrine and autocrine regulation of gene expression by Wnt-inhibitor Dickkopf in wild-type and mutant hepatocytes. AB - BACKGROUND: Cells are able to communicate and coordinate their function within tissues via secreted factors. Aberrant secretion by cancer cells can modulate this intercellular communication, in particular in highly organised tissues such as the liver. Hepatocytes, the major cell type of the liver, secrete Dickkopf (Dkk), which inhibits Wnt/ beta-catenin signalling in an autocrine and paracrine manner. Consequently, Dkk modulates the expression of Wnt/ beta-catenin target genes. We present a mathematical model that describes the autocrine and paracrine regulation of hepatic gene expression by Dkk under wild-type conditions as well as in the presence of mutant cells. RESULTS: Our spatial model describes the competition of Dkk and Wnt at receptor level, intra-cellular Wnt/ beta-catenin signalling, and the regulation of target gene expression for 21 individual hepatocytes. Autocrine and paracrine regulation is mediated through a feedback mechanism via Dkk and Dkk diffusion along the porto-central axis. Along this axis an APC concentration gradient is modelled as experimentally detected in liver. Simulations of mutant cells demonstrate that already a single mutant cell increases overall Dkk concentration. The influence of the mutant cell on gene expression of surrounding wild-type hepatocytes is limited in magnitude and restricted to hepatocytes in close proximity. To explore the underlying molecular mechanisms, we perform a comprehensive analysis of the model parameters such as diffusion coefficient, mutation strength and feedback strength. CONCLUSIONS: Our simulations show that Dkk concentration is elevated in the presence of a mutant cell. However, the impact of these elevated Dkk levels on wild-type hepatocytes is confined in space and magnitude. The combination of inter- and intracellular processes, such as Dkk feedback, diffusion and Wnt/ beta-catenin signal transduction, allow wild-type hepatocytes to largely maintain their gene expression. PMID- 29029623 TI - Hydrogen peroxide is involved in hydrogen sulfide-induced lateral root formation in tomato seedlings. AB - BACKGROUND: Both hydrogen sulfide (H2S) and hydrogen peroxide (H2O2) are separately regarded as a highly reactive molecule involved in root morphogenesis. In this report, corresponding causal link governing lateral root formation was investigated. METHODS: By using pharmacological, anatomic, and molecular approaches, evidence presented here revealed the molecular mechanism underlying tomato lateral root development triggered by H2S. RESULTS: A H2S donor sodium hydrosulfide (NaHS) triggered the accumulation of H2O2, the up-regulation of RBOH1 transcript, and thereafter tomato lateral root formation. Above responses were sensitive to the H2O2 scavenger (dimethylthiourea; DMTU) and the inhibitor of NADPH oxidase (diphenylene idonium; DPI), showing that the accumulations of H2O2 and increased RBOH1 transcript were respectively prevented. Lateral root primordial and lateral root formation were also impaired. Further molecular evidence revealed that H2S-modulated gene expression of cell cycle regulatory genes, including up-regulation of SlCYCA2;1, SlCYCA3;1, and SlCDKA1, and the down regulation of SlKRP2, were prevented by the co-treatment with DMTU or DPI. Above mentioned inducing phenotypes were consistent with the changes of lateral root formation-related microRNA transcripts: up-regulation of miR390a and miR160, and with the opposite tendencies of their target genes (encoding auxin response factors). Contrasting tendencies were observed when DMTU or DPI was added together. The occurrence of H2S-mediated S-sulfhydration during above responses was preliminarily discovered. CONCLUSIONS: Overall, these results suggested an important role of RBOH1-mediated H2O2 in H2S-elicited tomato lateral root development, and corresponding H2S-target proteins regulated at transcriptional and post-translational levels. PMID- 29029624 TI - Characteristics of spontaneous coagulase-negative staphylococcal spondylodiscitis: a retrospective comparative study versus Staphylococcus aureus spondylodiscitis. AB - BACKGROUND: Coagulase-negative staphylococci (CoNS) are increasingly implicated in recent patient series of spondylodiscitis, but there are no series of CoNS spondylodiscitis available. The objective of this study was to compare the characteristics of patients with spontaneous CoNS-spondylodiscitis with those patients with Staphylococcus aureus (SA) spondylodiscitis. METHODS: This was a retrospective single center study involving 147 spontaneous infectious spondylodiscitis cases observed between 2000 and 2015. The 26 cases of CoNS spondylodiscitis (15 confirmed) were compared with 30 cases of SA spondylodiscitis. CoNS infection was considered confirmed if the same CoNS was isolated in at least two samples at two different times. RESULT: Patients with CoNS-spondylodiscitis were older (70 vs. 61 years of age; p = 0.01), had associated cancer more often (15% vs. 0%; p = 0.04) and had a longer diagnostic delay (>15 days in 88% vs. 60%; p = 0.01); experienced fever less often (19% vs. 50%; p = 0.01), and had lower white blood cell (7.6 vs. 9.9G/L; p = 0.01) and polymorphonuclear leucocyte counts (5.6 vs. 7.5G/L; p = 0.04). Patients with CoNS spondylodiscitis had less pronounced inflammatory syndrome (erythrocyte sedimentation rate [ESR]: 62 vs. 81 mm at 1 h; p = 0.03; CRP: 60 vs. 147 mg/L; p = 0.0003) and less common (ESR < 30 mm: 23% vs. 0%; p = 0.01; CRP < 10 mg/L: 23% vs. 0%; p = 0.005) in comparison with patients with SA infection. The infection entry site was most often an intravascular catheter (20% vs. 3%; p = 0.008). The level of positive percutaneous needle biopsies was comparable between CoNS and SA. Two patients who died both had SA infections. CONCLUSION: CoNS spondylodiscitis involved at least 10% of spontaneous spondylodiscitis cases and was more common in elderly patients, afflicted by comorbidities, and its presentation was less virulent than that of those with SA-spondylodiscitis. PMID- 29029625 TI - A strategy for evaluating pathway analysis methods. AB - BACKGROUND: Researchers have previously developed a multitude of methods designed to identify biological pathways associated with specific clinical or experimental conditions of interest, with the aim of facilitating biological interpretation of high-throughput data. Before practically applying such pathway analysis (PA) methods, we must first evaluate their performance and reliability, using datasets where the pathways perturbed by the conditions of interest have been well characterized in advance. However, such 'ground truths' (or gold standards) are often unavailable. Furthermore, previous evaluation strategies that have focused on defining 'true answers' are unable to systematically and objectively assess PA methods under a wide range of conditions. RESULTS: In this work, we propose a novel strategy for evaluating PA methods independently of any gold standard, either established or assumed. The strategy involves the use of two mutually complementary metrics, recall and discrimination. Recall measures the consistency of the perturbed pathways identified by applying a particular analysis method to an original large dataset and those identified by the same method to a sub dataset of the original dataset. In contrast, discrimination measures specificity the degree to which the perturbed pathways identified by a particular method to a dataset from one experiment differ from those identifying by the same method to a dataset from a different experiment. We used these metrics and 24 datasets to evaluate six widely used PA methods. The results highlighted the common challenge in reliably identifying significant pathways from small datasets. Importantly, we confirmed the effectiveness of our proposed dual-metric strategy by showing that previous comparative studies corroborate the performance evaluations of the six methods obtained by our strategy. CONCLUSIONS: Unlike any previously proposed strategy for evaluating the performance of PA methods, our dual-metric strategy does not rely on any ground truth, either established or assumed, of the pathways perturbed by a specific clinical or experimental condition. As such, our strategy allows researchers to systematically and objectively evaluate pathway analysis methods by employing any number of datasets for a variety of conditions. PMID- 29029626 TI - Higher educational attainment associated with reduced likelihood of abnormal cervical lesions among Zambian women - a cross sectional study. AB - BACKGROUND: The high burden of cervical cancer in Zambia prompted the Ministry of Health and partners to develop the cervical cancer prevention program in Zambia (CCPPZ) in 2006. Despite this intervention more women continue to die from the disease and there is little understanding of factors that may be linked with abnormal cervical lesions in the general population. We therefore examined if educational attainment is associated with abnormal cervical lesions among Zambian women aged 15 to 49 years. METHODS: This study used data from the cervical cancer prevention program in Zambia, where a total of 14,294 women aged 15 to 49 years were screened for cervical cancer at nine health facilities between October 2013 and September 2014. The data represents women from six provinces of Zambia, namely Southern, Central, Copperbelt, Luapula, North-western and Eastern provinces. Step-wise logistic regression analysis using the Statistical Package for the Social Sciences (SPSS) version 21 was used to estimate adjusted odds ratios (AOR) and 95% confidence intervals (CIs) for educational attainment with presence of abnormal cervical lesions as outcome. Multiple imputation was further used to obtain the imputed stabilized estimates for educational attainment. RESULTS: The prevalence of abnormal cervical lesions, using the Visual Inspection with Acetic-acid (VIA) test was 10.7% (n = 1523). Educational attainment was inversely associated with abnormal cervical lesions (AOR = 0.75; 95% CI:0.70 0.81, AOR = 0.74; 95% CI:0.68-0.81 and AOR = 0.46; 95% CI:0.41-0.51) among women with primary, secondary and tertiary education, respectively, compared to those with no formal education. CONCLUSION: We find reduced likelihood of abnormal cervical lesions in educated women, suggesting a differential imbalance with women who have no formal education. These findings may be a reflection of inequalities associated with access to cervical cancer screening, making the service inadequately accessible for lower educated groups. This might also indicate serious limitations in awareness efforts instituted in the formative phases of the program. These findings underline the prevailing need for urgent concerted efforts in repackaging cervical cancer awareness programs targeting women with low or no formal education in whom the risk may be even higher. PMID- 29029627 TI - Determinants of self-rated health among shanghai elders: a cross-sectional study. AB - BACKGROUND: As the most populous nation in the world, China has now becoming an emerging ageing society. Shanghai is the first city facing the challenge of ageing demographics. Against this background, a study that employs self-rated health (SRH) assessment system was designed to explore the health status of Shanghai elders, and learn their attitudes toward health issues; as well as to investigate the determinants of SRH among Shanghai elders. Understanding SRH is crucial for finding appropriate solutions that could effectively tackle the increasing eldercare demand. METHODS: This study adopted a quantitative research strategy. Using a multistage stratified cluster sampling method, we conducted a questionnaire survey in August 2011 in Shanghai, which collected 2001 valid survey responses. SRH assessments were categorized by five levels: very good, fairly good, average, fairly poor, or poor. The respondents' functional status was evaluated using the Barthel index of activities for daily living. In the data analysis, we used chi-squared test to determine differences in socio-demographic characteristics among various groups. Along with statistics, several logistic regression models were designed to determine the associations between internal influence factors and SRH. RESULTS: Younger age (chi2 = 27.5, p < 0.05), male sex (chi2 = 11.5, p < 0.1), and living in the suburbs (chi2 = 55.1, p < 0.05) were associated with better SRH scores. Higher SRH scores were also linked with health behaviour of the respondents; namely, do not smoke (chi2 = 18.0, p < 0.1), do not drink (chi2 = 18.6, p < 0.1), or engage in regular outdoor activities (chi2 = 69.3, p < 0.05). The respondents with better social support report higher SRH scores than those without. Respondents' ability to hear (chi2 = 38.7, p < 0.05), speak (chi2 = 16.1, p < 0.05) and see (chi2 = 78.3, p < 0.05) impacted their SRH scores as well. Meanwhile, chronic illness except asthma was a major influence factor in low SRH score. Applying multiple regression models, a series of determinants were analysed to establish the extent to which they contribute to SRH. The impact of these variables on SRH scores were 6.6% from socio-demographic and health risk behaviours, 2.4% from social support, 8.5% from mental health, 20% from physical conditions, and13% from chronic diseases. CONCLUSIONS: This is the first study that examines the determinants of SRH among Shanghai elders. Nearly 40% of our study's respondents reported their health status as "good". The main determinants of SRH among elders include living condition, health risk behaviour, social support, health status, and the economic status of the neighbourhood. PMID- 29029630 TI - Correction to: Correlation of CSF flow using phase-contrast MRI with ventriculomegaly and CSF opening pressure in mucopolysaccharidoses. AB - After publication of the article [1], it has been brought to our attention that the full funding acknowledgement is missing from the original article. PMID- 29029628 TI - Erythropoietin reduces experimental autoimmune encephalomyelitis severity via neuroprotective mechanisms. AB - BACKGROUND: Treatment with erythropoietin (Epo) in experimental autoimmune encephalomyelitis (EAE), the rodent model of multiple sclerosis (MS), has consistently been shown to ameliorate disease progression and improve overall outcome. The effect has been attributed to modulation of the immune response and/or preservation of the central nervous system (CNS) tissue integrity. It remains unclear, however, if (a) Epo acts primarily in the CNS or the periphery and if (b) Epo's beneficial effect in EAE is mainly due to maintaining CNS tissue integrity or to modulation of the immune response. If Epo acts primarily by modulating the immune system, where is this modulation required? In the periphery, the CNS or both? METHODS: To address these questions, we used two well characterized transgenic mouse strains that constitutively overexpress recombinant human Epo (rhEpo) either systemically (tg6) or in CNS only (tg21) in a MOG-induced EAE model. We assessed clinical severity, disease progression, immunomodulation, and CNS tissue integrity, including neuronal survival. RESULTS: Although disease onset remained unaffected, EAE progression was alleviated in transgenic animals compared to controls with both lines performing equally well showing that expression of Epo in the periphery is not required; Epo expression in the CNS is sufficient. Immunomodulation was observed in both strains but surprisingly the profile of modulation differed substantially between strains. Modulation in the tg21 strain was limited to a reduction in macrophages in the CNS, with no peripheral immunomodulatory effects observed. In contrast, in the tg6 strain, macrophages were upregulated in the CNS, and, in the periphery of this strain, T cells and macrophages were downregulated. The lack of a consistent immunomodulatory profile across both transgenic species suggests that immunomodulation by Epo is unlikely to be the primary mechanism driving amelioration of EAE. Finally, CNS tissue integrity was affected in all strains. Although myelin appeared equally damaged in all strains, neuronal survival was significantly improved in the spinal cord of tg21 mice, indicating that Epo may ameliorate EAE predominantly by protecting neurons. CONCLUSIONS: Our data suggests that moderate elevated brain Epo levels provide clinically significant neuroprotection in EAE without modulation of the immune response making a significant contribution. PMID- 29029629 TI - Effects of age and gender on reference levels of biomarkers comprising the pediatric Renal Activity Index for Lupus Nephritis (p-RAIL). AB - BACKGROUND: Systemic Lupus Erythematosus (SLE) is a multisystem autoimmune disease that disproportionately effects women and children of minorities. Renal involvement (lupus nephritis, or LN) occurs in up to 80% of children with SLE and is a major determinant of poor prognosis. We have developed a non-invasive pediatric Renal Activity Index for Lupus (p-RAIL) that consists of laboratory measures that reflect histologic LN activity. These markers are neutrophil gelatinase associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1), monocyte chemotactic protein (MCP-1), adiponectin (APN), ceruloplasmin (CP) and hemopexin (HPX). A major gap in the knowledge base and a barrier to clinical utility is how these markers behave in healthy children. We set out to establish a reference range for the p-RAIL markers in a population of healthy children, and to determine if levels of these markers fluctuate with age or gender. METHODS: Urine was collected from 368 healthy children presenting to Cincinnati Children's primary care clinic for well child visits and assayed for NGAL, KIM-1, MCP-1, APN, CP and HPX using commercially available kits or assay materials. RESULTS: Specimens were grouped by age (0-5 years (n = 94); 5-10 (n = 89); 10-15 (n = 93); 15-20 (n = 91)) and gender (M = 184, F = 184). For age and gender comparisons, values were log transformed prior to analysis. The medians (minimums, maximums) of each marker in the combined population were as follows: NGAL 6.65 (0.004, 391.52) ng/ml, KIM-1416.84 (6.22, 2512.43) pg/ml, MCP-1209.36 (9.49, 2237.06) pg/ml, APN 8.05 (0.07, 124.50) ng/ml, CP 465.15 (8.02, 7827.00) ng/ml, HPX 588.70 (6.85, 17,658.40)ng/ml. All p-RAIL biomarkers but adiponectin had weak but significant positive correlations with age, with NGAL being the strongest (r = 0.33, p < 0.001). For gender comparisons, NGAL, CP and HPX were elevated in females vs males (86%, p < 0.0001; 3%, p = 0.007, and 5%, p = 0.0005 elevation of the log transformed mean, respectively). CONCLUSIONS: We have established a reference range for the p-RAIL biomarkers and have highlighted age and gender differences. This information is essential for rational interpretation of studies and clinical trials utilizing the p-RAIL algorithm. PMID- 29029631 TI - Neurotrophic support by traumatized muscle-derived multipotent progenitor cells: Role of endothelial cells and Vascular Endothelial Growth Factor-A. AB - BACKGROUND: Adult mesenchymal stem cells (MSCs) have been shown to increase nerve regeneration in animal models of nerve injury. Traumatized muscle-derived multipotent progenitor cells (MPCs) share important characteristics with MSCs and are isolated from severely damaged muscle tissue following surgical debridement. Previous investigations have shown that MPCs may be induced to increase production of several neurotrophic factors, suggesting the possible utility of autologous MPCs in peripheral nerve regeneration following injury. Recent findings have also shown that components of the vascular niche, including endothelial cells (ECs) and vascular endothelial growth factor (VEGF)-A, regulate neural progenitor cells and sensory neurons. METHODS: In this study, we have investigated the neuroinductive activities of MPCs, particularly MPC-produced VEGF-A, in the context of an aligned, neuroconductive nerve guide conduit and the endothelial component of the vascular system. Embryonic dorsal root ganglia (DRG) seeded on poly-epsilon-caprolactone aligned nanofibrous scaffold (NF) constructs and on tissue culture plastic, were cocultured with induced MPCs or treated with their conditioned medium (MPC-CM). RESULTS: Increased neurite extension was observed on both NF and tissue culture plastic in the presence of MPC-CM versus cell-free control CM. The addition of CM from ECs significantly increased the neurotrophic activity of induced MPC-CM, suggesting that MPC and EC neurotrophic activity may be synergistic. Distinctly higher VEGF-A production was seen in MPCs following neurotrophic induction versus culture under normal growth conditions. Selective removal of VEGF-A from MPC-CM reduced the observed DRG neurite extension length, indicating VEGF-A involvement in neurotrophic activity of the CM. CONCLUSIONS: Taken together, these findings suggest the potential of MPCs to encourage nerve growth via a VEGF-A-dependent action, and the use of MPC-CM or a combination of MPC and CM from ECs for peripheral nerve repair in conjunction with NFs in a nerve guide conduit. Due to the ease of use, application of bioactive agents derived from cultured cells to enhance neurotrophic support presents a promising line of research into peripheral nerve repair. PMID- 29029632 TI - Fatal haemorrhage and neoplastic thrombosis in a captive African lion (Panthera leo) with metastatic testicular sex cord-stromal tumour. AB - BACKGROUND: The study of neoplasia in wildlife species contributes to the understanding of cancer biology, management practices, and comparative pathology. Higher frequencies of neoplasms among captive non-domestic felids have been reported most commonly in aging individuals. However, testicular tumours have rarely been reported. This report describes a metastatic testicular sex cord stromal tumour leading to fatal haemorrhage and thrombosis in a captive African lion (Panthera leo). CASE PRESENTATION: During necropsy of a 16-year-old male African lion, the left testicle and spermatic cord were found to be intra abdominal (cryptorchid), semi-hard and grossly enlarged with multiple pale-yellow masses. Encapsulated haemorrhage was present in the retroperitoneum around the kidneys. Neoplastic thrombosis was found at the renal veins opening into the caudal vena cava. Metastases were observed in the lungs and mediastinal lymph nodes. Histology revealed a poorly differentiated pleomorphic neoplasm comprised of round to polygonal cells and scattered spindle cells with eosinophilic cytoplasm. An immunohistochemistry panel of inhibin-alpha, Ki-67, human placental alkaline phosphatase, cytokeratin AE1/AE3, cKit, vimentin and S100 was conducted. Positive cytoplasmic immunolabeling was obtained for vimentin and S100. CONCLUSIONS: The gross, microscopic and immunohistochemical findings of the neoplasm were compatible with a poorly differentiated pleomorphic sex cord stromal tumour. Cause of death was hypovolemic shock from extensive retroperitoneal haemorrhage and neoplastic thrombosis may have contributed to the fatal outcome. To our knowledge, this is the first report of sex cord-stromal tumour in non-domestic felids. PMID- 29029633 TI - Pattern of improvement in upper limb pointing task kinematics after a 3-month training program with robotic assistance in stroke. AB - BACKGROUND: When exploring changes in upper limb kinematics and motor impairment associated with motor recovery in subacute post stroke during intensive therapies involving robot-assisted training, it is not known whether trained joints improve before non-trained joints and whether target reaching capacity improves before movement accuracy. METHODS: Twenty-two subacute stroke patients (mean delay post stroke at program onset 63 +/- 29 days, M2) underwent 50 +/- 17 (mean +/- SD) 45 min sessions of robot-assisted (InMotionTM) shoulder/elbow training over 3 months, in addition to conventional occupational therapy. Monthly evaluations (M2 to M5) included Fugl-Meyer Assessment (FM), with subscores per joint, and four robot-based kinematic measures: mean target distance covered, mean velocity, direction accuracy (inverse of root mean square error from straight line) and movement smoothness (inverse of mean number of zero-crossings in the velocity profile). We assessed delays to reach statistically significant improvement for each outcome measure. RESULTS: At M5, all clinical and kinematic parameters had markedly improved: Fugl-Meyer, +65% (median); distance covered, +87%; mean velocity, +101%; accuracy, +134%; and smoothness, +96%. Delays to reach statistical significance were M3 for the shoulder/elbow Fugl-Meyer subscore (+43%), M4 for the hand (+80%) and M5 for the wrist (+133%) subscores. For kinematic parameters, delays to significant improvements were M3 for distance (+68%), velocity (+65%) and smoothness (+50%), and M5 for accuracy (+134%). CONCLUSIONS: An intensive rehabilitation program combining robot-assisted shoulder/elbow training and conventional occupational therapy was associated with improvement in shoulder and elbow movements first, which suggests focal behavior related brain plasticity. Findings also suggested that recovery of movement quantity related parameters (range of motion, velocity and smoothness) might precede that of movement quality (accuracy). TRIAL REGISTRATION: EudraCT 2016 005121-36 . Date of Registration: 2016-12-20. Date of enrolment of the first participant to the trial: 2009-11-24 (retrospective data). PMID- 29029634 TI - Is MMTV associated with human breast cancer? Maybe, but probably not. AB - BACKGROUND: Conflicting results regarding the association of MMTV with human breast cancer have been reported. Published sequence data have indicated unique MMTV strains in some human samples. However, concerns regarding contamination as a cause of false positive results have persisted. METHODS: We performed PCR assays for MMTV on human breast cancer cell lines and fresh frozen and formalin fixed normal and malignant human breast epithelial samples. Assays were also performed on peripheral blood mononuclear cells from volunteer blood donors and subjects at risk for human retroviral infections. In addition, assays were performed on DNA samples from wild and laboratory mice. Sequencing of MMTV positive samples from both humans and mice were performed and phylogenetically compared. RESULTS: Using PCR under rigorous conditions to prevent and detect "carryover" contamination, we did detect MMTV DNA in human samples, including breast cancer. However, the results were not consistent and seemed to be an artifact. Further, experiments indicated that the probable source of false positives was murine DNA, containing endogenous MMTV, present in our building. However, comparison of published and, herein, newly described MMTV sequences with published data, indicates that there are some very unique human MMTV sequences in the literature. CONCLUSION: While we could not confirm the true presence of MMTV in our human breast cancer subjects, the data indicate that further, perhaps more traditional, retroviral studies are warranted to ascertain whether MMTV might rarely be the cause of human breast cancer. PMID- 29029635 TI - Individual signatures and environmental factors shape skin microbiota in healthy dogs. AB - BACKGROUND: The individual, together with its environment, has been reported as the main force driving composition and structure of skin microbiota in healthy dogs. Therefore, one of the major concerns when analyzing canine skin microbiota is the likely influence of the environment. Despite the dense fur covering, certain skin diseases exhibit differential prevalence among skin sites, dog breeds, and individuals. RESULTS: We have characterized the normal variability of dog skin microbiota in a well-controlled cohort of a large number of Golden Labrador Retriever crossed dogs (N = 35) with similar ages, related genetic background, and a shared environment. We found that the individual drives the skin microbiota composition and structure followed by the skin site. The main bacterial classes inhabiting dog skin in this cohort are Gammaproteobacteria and Bacilli. We also detected bacteria associated to the environment on different dog skin sites that could be reflecting the different degrees of exposure of each skin site and each dog. Network analyses elucidated bacterial interactions within and between skin sites, especially in the chin, abdomen, axilla, and perianal region, with the highly shared interactions probably representing an anatomical, behavioral, or environmental component. When analyzing each skin site independently to assess host-specific factors, we found that temporality (season of birth and time spent in the kennel) affected all the skin sites and specially the inner pinna. The most abundant taxon driving this difference was Sphingomonas. We also found taxonomic differences among male and female dogs on the abdomen, axilla, and back. CONCLUSIONS: We observed a large inter-individual variability and differences among skin sites. Host-specific variables, such as temporality or sex, were also shaping skin microbiota of healthy dogs, even in an environmental homogenous cohort. PMID- 29029637 TI - Drug resistance patterns following pharmacy stock shortage in Nigerian Antiretroviral Treatment Program. AB - BACKGROUND: For patients on antiretroviral therapy (ART), treatment interruptions can impact patient outcomes and result in the accumulation of drug resistance mutations leading to virologic failure. There are minimal published data on the impact of an ART stock shortage on development of drug resistance mutations (DRMs). In this report, we evaluate data from patients enrolled in the Government of Nigeria National ART Program that were receiving treatment at the time of a national drug shortage in late 2003. METHODS: We conducted a cross-sectional evaluation of samples collected between December 2004 and August 2005 from ART patients in virologic failure that either had a treatment interruption or did not during the late 2003 drug shortage period at the Jos University Teaching Hospital (JUTH). Plasma virus was genotyped, sequence data were edited and analyzed, and mutation profiles were categorized to evaluate predicted drug susceptibility. Data were analyzed to examine factors associated with development of resistance mutations. A genotypic sensitivity score to the alternate recommended regimen was computed to assess drug susceptibility if regimens were changed. RESULTS: A total of 56 patients were included in this evaluation (28 interrupted, 28 uninterrupted). Patients in the interrupted group had more DRMs than those in the uninterrupted group (p < 0.001); interrupted patients were more likely than uninterrupted patients to have one or more TAM-2 mutations (57.1% interrupted vs. 21.3% uninterrupted; p = 0.04). There was a statistically significant difference in resistance to both d4T (53.7% interrupted vs. 17.9 uninterrupted; p = 0.011) and AZT (64.3% interrupted vs. 25.0% uninterrupted; p = 0.003) by drug interruption status. Examining genotypic sensitivity scores, we found that 67.9% of the interrupted patients, as compared to 25.0% of the uninterrupted patients, did not have full susceptibility to one drug in the regimen to which guidelines recommended they be switched (p = 0.001). DISCUSSION: In this small observational study, we found evidence of a difference in resistance profiles and ART susceptibility between those that were stocked-out of drug versus those that were not. We believe that these data are relevant for many other low- and middle income countries (LMIC) that also experienced similar ART shortages as they rapidly scaled up their national programs. PMID- 29029636 TI - Gene expression modules in primary breast cancers as risk factors for organotropic patterns of first metastatic spread: a case control study. AB - BACKGROUND: Metastases from primary breast cancers can involve single or multiple organs at metastatic disease diagnosis. Molecular risk factors for particular patterns of metastastic spread in a clinical population are limited. METHODS: A case-control design including 1357 primary breast cancers was used to study three distinct clinical patterns of metastasis, which occur within the first six months of metastatic disease: bone and visceral metasynchronous spread, bone-only, and visceral-only metastasis. Whole-genome expression profiles were obtained using whole genome (WG)-DASL assays from formalin-fixed paraffin-embedded (FFPE) samples. A systematic protocol was developed for handling FFPE samples together with stringent data quality controls to identify robust expression profiling data. A panel of published and novel gene sets were tested for association with these specific patterns of metastatic spread and odds ratios (ORs) were calculated. RESULTS: Metasynchronous metastasis to bone and viscera was found in all intrinsic breast cancer subtypes, while immunohistochemically (IHC)-defined receptor status and specific IntClust subgroups were risk factors for visceral only or bone-only first metastases. Among gene modules, those related to proliferation increased the risk of metasynchronous metastasis (OR (95% CI) = 2.3 (1.1-4.8)) and visceral-only first metastasis (OR (95% CI) = 2.5 (1.2-5.1)) but not bone-only metastasis (OR (95% CI) = 0.97 (0.56-1.7)). A 21-gene module (BV) was identified in estrogen-receptor-positive breast cancers with metasynchronous metastasis to bone and viscera (area under the curve = 0.77), and its expression increased the risk of bone and visceral metasynchronous spread in this population. BV was further orthogonally validated with NanoString nCounter in primary breast cancers, and was reproducible in their matched lymph nodes metastases and an external cohort. CONCLUSION: This case-control study of WG-DASL global expression profiles from FFPE tumour samples, after careful quality control and RNA selection, revealed that gene modules in the primary tumour have differing risks for clinical patterns of metasynchronous first metastases. Moreover, a novel gene module was identified as a putative risk factor for metasynchronous bone and visceral first metastatic spread, with potential implications for disease monitoring and treatment planning. PMID- 29029638 TI - Indoor microbiota in severely moisture damaged homes and the impact of interventions. AB - BACKGROUND: The limited understanding of microbial characteristics in moisture damaged buildings impedes efforts to clarify which adverse health effects in the occupants are associated with the damage and to develop effective building intervention strategies. The objectives of this current study were (i) to characterize fungal and bacterial microbiota in house dust of severely moisture damaged residences, (ii) to identify microbial taxa associated with moisture damage renovations, and (iii) to test whether the associations between the identified taxa and moisture damage are replicable in another cohort of homes. We applied bacterial 16S rRNA gene and fungal ITS amplicon sequencing complemented with quantitative PCR and chemical-analytical approaches to samples of house dust, and also performed traditional cultivation of bacteria and fungi from building material samples. RESULTS: Active microbial growth on building materials had significant though small influence on the house dust bacterial and fungal communities. Moisture damage interventions-including actual renovation of damaged homes and cases where families moved to another home-had only a subtle effect on bacterial community structure, seen as shifts in abundance weighted bacterial profiles after intervention. While bacterial and fungal species richness were reduced in homes that were renovated, they were not reduced for families that moved houses. Using different discriminant analysis tools, we were able identify taxa that were significantly reduced in relative abundance during renovation of moisture damage. For bacteria, the majority of candidates belonged to different families within the Actinomycetales order. Results for fungi were overall less consistent. A replication study in approximately 400 homes highlighted some of the identified taxa, confirming associations with observations of moisture damage and mold. CONCLUSIONS: The present study is one of the first studies to analyze changes in microbiota due to moisture damage interventions using high-throughput sequencing. Our results suggest that effects of moisture damage and moisture damage interventions may appear as changes in the abundance of individual, less common, and especially bacterial taxa, rather than in overall community structure. PMID- 29029641 TI - Sequence-specific detection of different strains of LCMV in a single sample using tentacle probes. AB - BACKGROUND: Virus infections often result in quasispecies of viral strains that can have dramatic impacts on disease outcomes. However, sequencing of viruses to determine strain composition is time consuming and often cost-prohibitive. Rapid, cost-effective methods are needed for accurate measurement of virus diversity to understand virus evolution and can be useful for experimental systems. METHODS: We have developed a novel molecular method for sequence-specific detection of RNA virus genetic variants called Tentacle Probes. The probes are modified molecular beacons that have dramatically improved false positive rates and specificity in routine qPCR. To validate this approach, we have designed Tentacle Probes for two different strains of Lymphocytic Choriomeningitis Virus (LCMV) that differ by only 3 nucleotide substitutions, the parental Armstrong and the more virulent Clone-13 strain. One of these mutations is a missense mutation in the receptor protein GP1 that leads to the Armstrong strain to cause an acute infection and Clone-13 to cause a chronic infection instead. The probes were designed using thermodynamic calculations for hybridization between target or non-target sequences and the probe. RESULTS: Using this approach, we were able to distinguish these two strains of LCMV individually by a single nucleotide mutation. The assay showed high reproducibility among different concentrations of viral cDNA, as well as high specificity and sensitivity, especially for the Clone 13 Tentacle Probe. Furthermore, in virus mixing experiments we were able to detect less than 10% of Clone-13 cDNA diluted in Armstrong cDNA. CONCLUSIONS: Thus, we have developed a fast, cost-effective approach for identifying Clone-13 strain in a mix of other LCMV strains. PMID- 29029640 TI - Breast carcinomas with low amplified/equivocal HER2 by Ish: potential supporting role of multiplex ligation-dependent probe amplification. AB - BACKGROUND: This is a retrospective cross sectional study aimed to verify whether Multiplex Ligation-dependent Probe Amplification (MLPA), a quantitative molecular assay, may represent a valuable reflex test in breast cancer with equivocal HER2 expression by immunohistochemistry and HER2 gene signals/nucleus (s/n) ranging between 4.0 and 5.9 by in situ hybridization. METHODS: A series of 170 breast carcinomas scored as 2+ for HER2 expression by immunohistochemistry, were selected from our files and analyzed in parallel by silver in situ hybridization and by MLPA. According to ASCO-CAP 2013 guidelines, 54/170 tumors, displaying 4.0 5.9 HER2 gene s/n, were defined as low amplified (ratio >= 2) or equivocal (ratio < 2) on the basis of centromere enumeration probe 17 (CEP17) status. An independent set of 108 score 2+ breast cancers represented the external validation set. Concordance between the two techniques was assessed through the use of Cohen's K statistic. RESULTS: A concordance rate of 78.2% (Cohen's K statistic: 0,548 95% CI:[0,419-0,677]) between in situ hybridization and MLPA was found in the whole series of 170 cases and of 55.5% (Cohen's K statistic: -0,043 95% CI:[-0,271-0,184]) in the 54 tumors presenting 4.0-5.9 HER2 gene s/n. By MLPA, we found HER2 amplification or gain in 14% of the 21 BC presenting a disomic status and in 18% of the 33 BC presenting a CEP17 > 2.0. These data were further confirmed in the external validation set. Interestingly, the 54 low amplified/equivocal breast carcinomas presented a frequency of hormonal receptor positivity significantly higher than that observed in the amplified tumors and similar to the non-amplified one (p = 0.016 for estrogen receptor and p = 0.001 for progesterone receptor). CONCLUSIONS: To avoid to offer patients an ineffective therapy, HER2 status should be studied more thoroughly in low amplified and equivocal cases which can have lower response rates and shorter time to progression to trastuzumab. In this context, our data indicate that MLPA may be a reliable, objective supporting test in selecting HER2 positive breast cancer patients. PMID- 29029639 TI - Efficacy differences of electroacupuncture with single acupoint or matching acupoints for chemotherapy-induced nausea and vomiting: study protocol for a randomized controlled trial. AB - BACKGROUND: Previous studies have shown that acupuncture is beneficial for the alleviation of chemotherapy-induced nausea and vomiting. However, there is a lack of clinical evidence concerning the effects of acupoint-matching on chemotherapy induced nausea and vomiting. METHODS/DESIGN: This is a parallel randomized controlled trial to evaluate the occurrence of nausea and vomiting after chemotherapy (the incidence of nausea and vomiting, frequency, VAS score, RINVR rating) as the main outcome for cancer. Quality of life, anxiety and depression scores are the secondary outcomes. Quality of life, anxiety and depression scores are the secondary phase. Use of remedy drugs, routine blood examination, and blood biochemical tests are the safety evaluation. We also compare the different effects of ST36 (single acupoint), CV12 (single acupoint), and ST36-CV12 matching groups. DISCUSSION: The results of this trial are expected to explore the effects of matching different acupoints and to offer biologic plausibility for the use of acupuncture in the treatment of chemotherapy-induced nausea and vomiting (CINV). TRIAL REGISTRATION: This trial is registered with clinicaltrials.gov NCT02195921 , The date of registration was 17 July 2014. PMID- 29029642 TI - Post-trauma morbidity, measured as sick leave, is substantial and influenced by factors unrelated to injury: a retrospective matched observational cohort study. AB - BACKGROUND: Mortality as an endpoint has been the focus of trauma research whereas few studies investigate long-term outcomes in terms of morbidity. An adequate analysis of post-injury morbidity includes several dimensions, for this reason sick leave has been used as a proxy for morbidity in the current study. The aim of this retrospective matched observational cohort study was to investigate sick leave before and after trauma and factors associated with prolonged sick leave. METHODS: Patients from a level one trauma centre 2005-2010 were matched in a 1:5 ratio with uninjured controls. By linkage to national registries, sick leave rates were compared. The association between potential risk factors and full-time sick leave at twelve months post injury, the primary end-point, was examined in trauma patients by logistic regression. RESULTS: Four thousand seven hundred twelve patients and 25,013 controls aged 20-63 were included. Trauma patients had more sick leave both before and after trauma. Age, psychiatric disease, low level of education, serious injury, spinal injury, reduced consciousness at admission, discharge destination other than home, and hospital length of stay >7 days were all associated with the primary end-point. The strongest risk factor was sick leave before trauma; this was also noted in the most seriously injured patients. DISCUSSION: In this retrospective matched observational cohort study we found a significant long-term morbidity, measured as sick leave, among trauma patients. Compared to controls the difference was maximal early after trauma and sustained throughout the follow up period. In the logistic regression, factors associated with the traumatic injury as well as host factors increased the probability of not returning to work. Full sick leavemonth twelve post injury was strongly associated with pre-injury sick leave but also with age, psychiatric comorbidity, level of education, injury severity, spinal injury, low GCS at admission, length of stay at hospital and discharge to other destination than home. CONCLUSIONS: Trauma patients suffer from significant long term morbidity. The sustained post-trauma morbidity is largely influenced by factors not related to injury per se. These insights enable identification of patients at risk for prolonged sick leave after trauma. PMID- 29029645 TI - On the implications of desexualizing vaccines against sexually transmitted diseases: reflections from a practicing pediatrician. AB - Human papillomavirus (HPV) vaccination holds great promise for drastically reducing the incidence of HPV-associated cancers of the genital tract, and possibly also certain head and neck cancers. Unfortunately, rates of HPV vaccine utilization among adolescents are low in many countries. Many research studies have identified the fact that HPV is a sexually transmitted infection as a barrier to higher vaccination rates. This is related to providers' and parents' reluctance to discuss or consider the burgeoning sexuality of their child. An approach suggested to overcome this barrier is to "desexualize" the vaccine. This entails focusing discussions and public messages on the cancer-preventing properties of the vaccine and ignoring or minimizing information about HPV's sexual transmissibility. In an article by Velan and Yadgar, the authors argue that this approach does more harm than good. This associated commentary offers a slightly different viewpoint from one who has been "in the trenches" both clinically and from a research standpoint for many years. PMID- 29029644 TI - Varying intervals of antiretroviral medication dispensing to improve outcomes for HIV patients (The INTERVAL Study): study protocol for a randomized controlled trial. AB - BACKGROUND: Requirements for frequent dispensing of antiretroviral therapy (ART) place demands on health systems and can lead to suboptimal adherence and disengagement in care for patients due to the time and cost of frequent clinic visits. Rigorous data are needed to define optimal ART dispensing strategies and to evaluate the impact of a longer medication supply on retention and virologic suppression and determine whether this strategy lowers costs for both the patient and the health system. To date, no randomized studies have tested the benefits of 6-month dispensing of ART compared to 3-month and standard of care approaches. METHODS: This study will be an unblinded cluster-randomized, matched controlled trial conducted among 8200 stable, HIV-infected individuals age 18 years and older on ART in Malawi and Zambia, to compare three ART dispensing intervals on the outcomes of retention in care (primary outcome), virologic suppression, and cost-effectiveness. Thirty clusters will be matched according to country, facility type, and ART cohort size and randomized to one of three study arms: standard of care, 3-month dispensing, and 6-month dispensing. Study participants will be followed, and outcomes will be measured at 12, 24, and 36 months. A subset of participants (n = 240) and providers (n = 180) will also participate in qualitative interviews to evaluate feasibility and acceptability of different ART dispensing intervals. DISCUSSION: This study will be the first to compare 6-month and 3-month ART dispensing intervals for stable, HIV-infected individuals in Malawi and Zambia. We focus on outcomes relevant to country programs, including retention, virologic suppression, and cost-effectiveness. Results from the study will help resource-limited health systems better understand the full scope of outcomes resulting from various ART dispensing intervals and help to inform health policy decisions. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03101592 . Registered on 18 March 2017. Pan African Clinical Trials, PACTR201706002336105 . Registered on 2 June 2017. PMID- 29029643 TI - An integrated methodology for assessing the impact of food matrix and gastrointestinal effects on the biokinetics and cellular toxicity of ingested engineered nanomaterials. AB - BACKGROUND: Engineered nanomaterials (ENMs) are increasingly added to foods to improve their quality, sensory appeal, safety and shelf-life. Human exposure to these ingested ENMs (iENMS) is inevitable, yet little is known of their hazards. To assess potential hazards, efficient in vitro methodologies are needed to evaluate particle biokinetics and toxicity. These methodologies must account for interactions and transformations of iENMs in foods (food matrix effect) and in the gastrointestinal tract (GIT) that are likely to determine nano biointeractions. Here we report the development and application of an integrated methodology consisting of three interconnected stages: 1) assessment of iENM-food interactions (food matrix effect) using model foods; 2) assessment of gastrointestinal transformations of the nano-enabled model foods using a three stage GIT simulator; 3) assessment of iENMs biokinetics and cellular toxicity after exposure to simulated GIT conditions using a triculture cell model. As a case study, a model food (corn oil-in-water emulsion) was infused with Fe2O3 (Iron(III) oxide or ferric oxide) ENMs and processed using this three-stage integrated platform to study the impact of food matrix and GIT effects on nanoparticle biokinetics and cytotoxicity . METHODS: A corn oil in phosphate buffer emulsion was prepared using a high speed blender and high pressure homogenizer. Iron oxide ENM was dispersed in water by sonication and combined with the food model. The resulting nano-enabled food was passed through a three stage (mouth, stomach and small intestine) GIT simulator. Size distributions of nano-enabled food model and digestae at each stage were analyzed by DLS and laser diffraction. TEM and confocal imaging were used to assess morphology of digestae at each phase. Dissolution of Fe2O3 ENM along the GIT was assessed by ICP-MS analysis of supernatants and pellets following centrifugation of digestae. An in vitro transwell triculture epithelial model was used to assess biokinetics and toxicity of ingested Fe2O3 ENM. Translocation of Fe2O3 ENM was determined by ICP MS analysis of cell lysates and basolateral compartment fluid over time. RESULTS: It was demonstrated that the interactions of iENMs with food and GIT components influenced nanoparticle fate and transport, biokinetics and toxicological profile. Large differences in particle size, charge, and morphology were observed in the model food with and without Fe2O3 and among digestae from different stages of the simulated GIT (mouth, stomach, and small intestine). Immunoflorescence and TEM imaging of the cell culture model revealed markers and morphology of small intestinal epithelium including enterocytes, goblet cells and M cells. Fe2O3 was not toxic at concentrations tested in the digesta. In biokinetics studies, translocation of Fe2O3 after 4 h was <1% and ~2% for digesta with and without serum, respectively, suggesting that use of serum proteins alters iENMs biokinetics and raises concerns about commonly-used approaches that neglect iENM food-GIT interactions or dilute digestae in serum-containing media. CONCLUSIONS: We present a simple integrated methodology for studying the biokinetics and toxicology of iENMs, which takes into consideration nanoparticle-food-GIT interactions. The importance of food matrix and GIT effects on biointeractions was demonstrated, as well as the incorporation of these critical factors into a cellular toxicity screening model. Standardized food models still need to be developed and used to assess the effect of the food matrix effects on the fate and bioactivity of iENMs since commercial foods vary considerably in their compositions and structures. PMID- 29029646 TI - Paretic versus non-paretic stepping responses following pelvis perturbations in walking chronic-stage stroke survivors. AB - BACKGROUND: The effects of a stroke, such as hemiparesis, can severely hamper the ability to walk and to maintain balance during gait. Providing support to stroke survivors through a robotic exoskeleton, either to provide training or daily-life support, requires an understanding of the balance impairments that result from a stroke. Here, we investigate the differences between the paretic and non-paretic leg in making recovery steps to restore balance following a disturbance during walking. METHODS: We perturbed 10 chronic-stage stroke survivors during walking using mediolateral perturbations of various amplitudes. Kinematic data as well as gluteus medius muscle activity levels during the first recovery step were recorded and analyzed. RESULTS: The results show that this group of subjects is able to modulate foot placement in response to the perturbations regardless of the leg being paretic or not. Modulation in gluteus medius activity with the various perturbations is in line with this observation. In general, the foot of the paretic leg was laterally placed further away from the center of mass than that of the non-paretic leg, while subjects spent more time standing on the non paretic leg. CONCLUSIONS: The findings suggest that, though stroke-related gait characteristics are present, the modulation with the various perturbations remains unaffected. This might be because all subjects were only mildly impaired, or because these stepping responses partly occur through involuntary pathways which remain unaffected by the complications after the stroke. PMID- 29029648 TI - Screening for Oral Cancer in a Mixed General Dental Practice. AB - How effectively is oral cancer screening being performed in a mixed general dental practice? Screening for oral cancer is a powerful tool in early detection and treatment of cancer. This audit aims to assess the effectiveness of oral cancer screening at a mixed NHS and private general dental practice in the West Midlands. A retrospective review of 100 case notes were audited for recording of soft tissue examination and social history, including alcohol consumption and cigarette smoking. The standards were set at 100% for both soft tissue examination and social history. The results showed that 100% of patients had received a soft tissue examination and 99% had their social history recorded. An attempt to eliminate the deficit to the set standard was by changing the medical history form to include social history. A re-audit is planned for six months' time. PMID- 29029649 TI - Chronic Facial Pain. AB - Orofacial pain is a common complaint with the vast majority of cases the result of an acute dental cause. There are, however, a number of patients who experience chronic orofacial pain in whom no dental cause can be found, and it is therefore important to identify these patients in order to avoid unnecessary dental procedures. Successful management of chronic orofacial pain depends on the correct diagnosis and appropriate interventions with a biopsychosocial approach. PMID- 29029647 TI - Renal manifestations of HIV during the antiretroviral era in South Africa: a systematic scoping review. AB - BACKGROUND: It is estimated that 650,000 patients may develop human immunodeficiency virus (HIV)-related renal disease in South Africa. South Africa has recently adopted WHO policy, stipulating that all HIV-infected patients have access to antiretroviral treatment (ART) irrespective of CD4 cell count. METHODS: We searched Google Scholar, PubMed, Medline, Cochrane Library, Worldcat.org and EBSCO host databases from July 2015 to December 2015. Eligibility criteria included articles pertaining to renal manifestations of HIV in South Africa from 2004 to 2015 in adult patients (>= 18 years). We independently reviewed the articles for quality. Thematic content analysis was performed to identify patterns of renal manifestations from the included studies. The risk of bias (e.g. internal validity) in the included studies was evaluated using the mixed methods appraisal tool. RESULTS: Eleven out 21 studies were eligible for data extraction. The prevalence of urine abnormalities on urine dipsticks was high but had poor sensitivity and specificity for detecting renal impairment. Normal renal function occurred in 28.4 to 79% of patients, mild renal impairment occurred in 19 to 57.1% and moderate renal impairment in 2 to 14.4%. Severe renal impairment occurred in 1.3% of patients. Both the Cockcroft-Gault equation (after correcting for bias) and the 4-variable Modification of Diet in Renal Disease equation (without the ethnicity factor for African Americans) have been validated for the estimation of glomerular filtration rate (eGFR) in Black South Africans. HIV associated nephropathy was the most prevalent histology seen (57.2%). Older age, a lower CD4 count, a low haemoglobin and a detectable viral load were associated with renal impairment. Renal function improved in the first year of commencing ART as evidenced by the regression of proteinuria and the increase in eGFR. CONCLUSION: The findings of the review have implications to the recently adopted 'test and treat' approach to HIV prevention and management. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42016039270. PMID- 29029650 TI - Oral Ulceration: An Overview of Diagnosis and Management. AB - Mouth ulcers are a common complaint by patients, with individuals regularly presenting to primary care practitioners for diagnosis and treatment. The aetiology and pathogenesis of oral ulceration is, however, both varied and complex. This article highlights the importance of differentiating recurrent aphthous stomatitis (RAS) in otherwise healthy individuals from recurrent oral ulceration (ROU) secondary to known or unknown systemic disease. An overview of the diagnosis and management of such patients is provided as a framework to guide general dental practitioners' with clinical decision making on whether to treat or refer to secondary care. PMID- 29029651 TI - Oral Lichenoid and Lichen Planus-like Lesions. AB - Many red and white lesions of the mouth are clinically indistinguishable from those of oral lichen planus (OLP). These lesions, often referred to as oral lichenoid lesions (OLL), can occur as a result of contact sensitivity (lichenoid contact reactions), drug reactions or as part of chronic graft versus host disease (GVHD). Oral lesions in discoid lupus erythematosus (DLE) and systemic lupus erythematosus (SLE) can also have a similar clinical appearance to OLP. Distinguishing oral lichen planus from oral lichenoid lesions, lupus lesions, or other red and white lesions of the mouth can be difficult (even impossible) but it is important, for optimal management of each condition. All patients with red and white pathological lesions should be referred to an oral medicine or a local oral or maxillofacial surgery department, where a biopsy and other investigations can help to establish a diagnosis, and appropriate treatment and monitoring can be commenced. Dentists and other members of the dental team, such as hygienists and dental therapists, should also equip themselves with the knowledge to be able to explain different pathologies of the mouth to their patients and discuss risk factors. PMID- 29029652 TI - Oral Lichen Planus. AB - Lichen planus (LP) is a relatively common autoimmune T-cell-mediated disease of unknown aetiology affecting the mucous membranes, skin and nails. Its prevalence varies between 0.5 and 2.2% of the population in epidemiological studies with a peak incidence in the 30-60 years range and with a female predominance of 2:1. Mucosal lichen planus tends to follow a chronic course with acute exacerbations. Spontaneous remission of oral lichen planus (OLP) is uncommon, and indeed mucosal LP may become worse with time. In contrast, cutaneous lichen planus may follow a milder clinical course though some variants may be severe such as those affecting the palms and soles and the scalp and the genital tract in females (vulvovaginal gingival LP) where scarring leads to significant complications. It is important to identify those cases that may be drug induced or be associated with a contact allergic or irritant reaction (lichenoid reaction) or the rarer oral presentation of discoid lupus erythematosus. There is a very small risk of malignancy (approximately 1:200 patients/year) associated with oral lichen planus; thus patients should be informed that long term monitoring via their general dental practitioner is appropriate. This review will focus on the clinical presentation and management of oral lichen planus. PMID- 29029653 TI - An Overview of Vesicobullous Conditions Affecting the Oral Mucosa. AB - Vesicobullous diseases are characterised by the presence of vesicles or bullae at varying locations in the mucosa. The most common occurring in the oral cavity are mucous membrane pemphigoid (MMP) and pemphigus vulgaris (PV). Both are autoimmune diseases with a peak age onset of over 60 years and females are more commonly affected than men. This paper reviews the structure of the oral mucosa, with specific reference to the basement membrane zone, as well as bullous conditions affecting the mucosa, including PV and pemphigoid, their aetiology, clinical presentation, and management. PMID- 29029654 TI - The Clinical Presentation of Oral Potentially Malignant Disorders. AB - Early detection of oral cancer improves survival rates significantly, however, the incidence of oral cancer has continued to rise in the UK - between 2002-2012, it increased by more than 30%. There is currently no national screening programme for oral cancer, so undertaking a full examination of the oral mucosa during routine dental appointments is vital. Although strong evidence is still lacking, oral cancer is thought to be preceded by oral potential malignant disorders (OPMDs) or oral precancerous diseases. These mainly present as white/red lesions within the mouth and their clinical appearance can be challenging to diagnose accurately, which can lead to them being misdiagnosed as negligible problems. Dentists must keep up to date with OPMDs detection and ensure they are capable of correctly recognising lesions that carry a potential risk. This paper aims to provide a brief overview on OPMDs, highlighting potentially malignant disorders as they may present to the practitioner, showing their typical clinical appearance, and suggesting differential diagnosis and clinical management in dental practice. PMID- 29029655 TI - Oral Cancer Diagnosis in Primary Care. AB - The incidence of oral cancer in the UK is rising, with approximately 7,300 new cases diagnosed in 2012. The number of oral cancer cases in the UK has risen by more than a quarter in the last decade. Mouth cancer is within the ten most common cancers encountered among men in the UK. Primary care practitioners, both in a dental and medical setting, have a role in the early diagnosis of oral malignancy, and in providing patients with information regarding risk factors such as smoking, alcohol and betel quid use. The purpose of this paper is to present the epidemiology and risk factors related to oral cancer and particularly review the literature regarding the level of awareness and practice in primary care as recorded in relevant research. PMID- 29029656 TI - Dry Mouth and Sjogren's Syndrome: An Overview. AB - Dry mouth is a common condition presenting to a GP or general dental practitioner. The most common cause of a dry mouth is related to medication use, however patients with Sjogren's syndrome, a multisystem autoimmune condition, may present to their dentist rather than their GP complaining of dry mouth and dry eyes. This article explores the causes of dry mouth and how a patient can be investigated to find the cause of their dry mouth. An overview of Sjogren's syndrome, the relevant diagnostic criteria, presenting signs and symptoms, investigations and management principles are outlined. PMID- 29029657 TI - Dry Mouth and Clinical Oral Dryness Scoring Systems. AB - Dry mouth or xerostomia is the feeling that there is not sufficient saliva in the mouth. If this is present all or most of the time then it can be uncomfortable. It can also sometimes indicate health problems and as a result should be brought to the attention of a health care professional. Xerostomia does not always equate to hyposalivation. There are ways to assess degrees of oral dryness, namely-CODS (clinical oral dryness scoring) which helps to give a numerical value to the oral signs. PMID- 29029658 TI - Update on Orofacial Granulomatosis. AB - Orofacial granulomatosis (OFG) is a condition manifesting clinically with chronic swelling of the mouth and/or face, notably with swelling of the lips and oral mucosa, a full-thickness, erythematous gingivitis and mucosal ulceration of various clinical types. Some patients may also present with neurological findings, for example facial palsy. Biopsy of affected tissue shows lymphoedema, with or without granulomatous inflammation. The oral lesions in OFG are histologically indistinguishable from the oral lesions in Crohn's disease (CD) and other systemic granulomatous disorders. It is a condition which may respond to the exclusion of certain food-related chemicals from the diet in up to 60% of patients and, as such, is distinct from gastrointestinal CD. CD is a relapsing systemic inflammatory disease which predominantly affects the gut, and patients suffering from this disease frequently present with abdominal pain, fever and altered bowel habit. A proportion of patients with clinical OFG (without other systemic disease) may have asymptomatic gastrointestinal involvement or go on to develop gut CD suggesting an association between the two diseases. It is estimated that 1% of CD sufferers may have a diagnosis of OFG, but the majority of patients in specialist OFG clinics do not have gut symptoms. PMID- 29029659 TI - Real Time Optical Vascular Imaging: A Potential Technique for the Diagnosis of Mucosal Disease Including Early Oral Cancer. AB - Early detection of oropharyngeal carcinoma is imperative in order to minimise morbidity and increase survival rate, but most of these patients present to the specialist with already advanced stages of malignancy, when the prognosis is relatively poor. General dental practitioners and dental care professionals have a unique opportunity during routine examination to detect any suspicious lesions. However, we continue to rely mostly on conventional examination, which is known to have limitations. There are diagnostic adjuncts available to help detect oral squamous cell carcinoma (OSCC) and oral potentially malignant disorders (OPMD), such as vital staining, brush cytology and macroscopic light-based detection techniques, discussed elsewhere in this issue. However a recent meta-analysis demonstrated that these techniques are not reliable enough as standalone diagnostics and that conventional biopsy remains the diagnostic gold standard. This article shows a new imaging technique which has the potential to detect early signs of oral cancer. This technique is based on the use of green light which allows the observation of oral microvasculature. General dental practitioners and dental care practitioners have a privileged opportunity during routine examination to detect any suspicious lesions in the head and neck region and refer when necessary to specialist care. However, they rely mostly on conventional examination, which is known to be insufficient for the detection of early signs of malignancy. There are diagnostic adjuncts available to help detect oral cancer and oral premalignant disorders, such as vital staining, brush cytology and macroscopic light-based detection techniques, but a recent meta analysis has concluded that alone, these are not reliable enough to make a full tissue diagnosis. In the main, their value is more as a guide to indicate need for and to locate sites for conventional biopsy, which remains the diagnostic gold standard. However, biopsy also has inherent limitations such as sample handling and site errors and is associated with patient morbidity at every sampling event. The authors have developed and tested a new real-time optical vascular imaging technique (RTOVI) to observe the gingival microvasculature as a direct reporter of local tissue function and behaviour. In addition to direct imaging, the reliability of a potential image analysis method, developed for microvascular images, was assessed. The images were assessed for number of capillaries, capillary area (CA), total capillary area (TCA) and aspect ratio (AR). The mean number of capillaries found in our study (45.06 per mm2) which was higher than figures identified in previous 'same-location' oral mucosal studies (15.42 per mm2). This may reflect the wide variation between individuals and potentially improved resolution and contrast optics between studies. This small study suggests that mean values in CA, TCA and AR may be reliable parameters for thresholding normal values, for comparison between individuals and for the assessment of the microvasculature over time. This assessment of normal is essential to pave the way for further studies involving inflammatory and mitotic lesions. PMID- 29029662 TI - Robert Warnock: Make Sure Your Voice is Heard. PMID- 29029661 TI - When Enough Is Enough. PMID- 29029664 TI - 2017 ASCP Annual Meeting & Exhibition. PMID- 29029663 TI - Demystifying Probiotics: Use in the Elderly. AB - Pharmacists and other health care professionals can be perplexed by the growing body of literature regarding the use of probiotics for a variety of symptoms and conditions and by an increasing number of probiotic products available to consumers. Understanding the functions of the intestinal microbiome, the possible mechanisms of actions of probiotics, the research supporting or refuting probiotic use, and criteria for selecting a probiotic product is essential to making a rational recommendation for patients. PMID- 29029665 TI - Mohs Micrographic Surgery: Key Pharmacologic Considerations. AB - OBJECTIVE: To describe Mohs micrographic surgery and evaluate whether direct oral anticoagulants should be withheld in patients with atrial fibrillation (Afib) prior to the procedure and to consider what type of antibiotic prophylaxis should be used. SETTING: A community setting in which an elderly patient is living independently at home. PRACTICE DESCRIPTION: Academic-affiliated internal medicine clinic that cares for adult patients of all ages, including elderly patients living independently in their own home. The practice occasionally consults with geriatric specialty pharmacists to obtain drug information regarding drug therapy. PRACTICE INNOVATION: Identify and assess literature regarding therapeutic issues regarding patients with Afib, whether direct oral anticoagulants should be withheld prior to dermatologic surgery, and what type of antibiotic prophylaxis should be provided prior to the procedure. MAIN OUTCOME MEASUREMENTS: Highlight literature that assesses surgical bleeding risk if direct oral anticoagulants are continued, and alternatively, the risk of a thromboembolic event if discontinued; and address antibiotic prophylaxis prior to Mohs micrographic surgery in a patient with Afib. RESULTS: In an elderly patient with Afib, a pharmacist should evaluate bleeding risk if direct oral anticoagulants are continued, risk for stroke if anticoagulants are discontinued, and determine appropriate antibiotic prophylaxis prior to Mohs micrographic surgery. CONCLUSION: In patients with Afib treated with direct oral anticoagulants who will have dermatologic surgery, the bleeding risk is usually low, whereas risk of a possible thromboembolic event is high, and antibiotic prophylaxis should be done to prevent infection. PMID- 29029666 TI - Exercising with Veterans: How Social Interaction with a Pharmacy Student Improves Patient Care. AB - With the baby boomer population anticipated to explode between 2010 and 2030, it is essential that student pharmacists learn how to properly care for older patients. One way for pharmacy students to prepare for providing health care to the elderly is to partake in an Advanced Pharmacy Practice Experience (APPE) elective course in geriatrics. Pharmacy students, and health care professionals in general, have an immense amount of information available to them that is not found in a patient's chart or textbook, but can be uncovered through increased social interaction with patients, promoting the best possible care. Although these are not novel ideas, this article describes a unique experience I recently had with the veterans at the Alvin C. York Campus of the Veterans Affairs (VA) Tennessee Valley Healthcare System. While completing an APPE elective in geriatrics, I was given the opportunity to attend twice-weekly exercise classes with the veterans. When my preceptor first told me about this project, I was both excited and intrigued because I thought it would be an interesting way to interact with my patients, but I never imagined how much the relationships I formed would positively impact my ability to care for my patients. PMID- 29029667 TI - Prediction Accuracy of Winter-Tozer Equations to Estimate Free Phenytoin Concentrations in Non-Critically Ill Hospitalized Patients. AB - OBJECTIVE: To assess the accuracy of the standard and revised Winter-Tozer (WT) equations of predicting free phenytoin (PHT) concentrations in non-critically ill, hospitalized patients. DESIGN: Retrospective chart review. SETTING: Single center, large urban community hospital. PATIENTS, PARTICIPANTS: Patients with free PHT levels obtained during the study period were reviewed. Thirty-nine non critically ill, hospitalized adults met the inclusion criteria. The study population consisted of 77% African-Americans and 77% individuals 65 years of age and older. INTERVENTIONS: PHT concentrations were measured at ambient temperature. Predicted free PHT concentrations were estimated as 10% of normalized total PHT concentrations using standard or revised WT equations in two groups of patients with hypoalbuminemia and end-stage renal disease (ESRD). MAIN OUTCOME MEASURE(S): Correlation between measured versus predicted free PHT concentrations in patients with hypoalbuminemia or ESRD. RESULTS: Strong positive correlations were identified between measured and predicted free PHT concentrations for 27 patients with hypoalbuminemia (r [the Pearson correlation coefficient] = 0.96; P < 0.001) and 12 patients with ESRD (r = 0.95; P < 0.001). CONCLUSION: This study population represented a largely understudied population in this research area. Use of traditional and revised WT equations in primarily elderly, non-critically ill African-American populations can be considered to accurately predict PHT levels in populations with altered PHT albumin binding resulting from hypoalbuminemia or ESRD and settings where free PHT levels are not readily obtainable. PMID- 29029668 TI - The DE-PHARM Project: A Pharmacist-Driven Deprescribing Initiative in a Nursing Facility. AB - OBJECTIVE: Many residents with life-limiting illnesses are being prescribed and taking potentially inappropriate medications (PIMs) and questionably beneficial medications either near or at the end of life. These medications can contribute to adverse drug reactions, increase morbidity, and increase unnecessary burden and cost. It is crucial that the process of deprescribing be incorporated into the care of these residents. After developing a clinical pharmacist-driven deprescribing initiative in the nursing facility, the objective of this project was to reduce the number of PIMs via accepted recommendations from the clinical pharmacist to the primary team. DESIGN/SETTING/PARTICIPANTS: The Discussion to Ensure the Patient-centered, Health-focused, prognosis-Appropriate, and Rational Medication regimen (DE-PHARM) quality improvement-approved project was conducted in an urban, academic nursing facility in Pittsburgh, Pennsylvania. The pilot phase occurred between October 2015 and April 2016. To be included in this study, participants had to be a custodial resident of the nursing facility with a previously documented comfort-focused treatment plan. All medications used for the management of chronic comorbid diseases were eligible for review. RESULTS: Forty-seven residents managed by eight different primary teams met inclusion criteria. Thirty-nine recommendations for 23 residents were made by the clinical pharmacist, with an average of 0.82 and range of 0-5 recommendations per resident, respectively. Of those, only 10 (26%) were accepted, 1 (3%) was modified, 3 (7%) were rejected, and 25 (64%) had no response within the 120-day response period. Additionally, two residents died during the project, and one resident was readmitted to the hospital for a prolonged period of time. CONCLUSION: The pilot phase of the DE-PHARM project, a clinical pharmacist-driven deprescribing initiative, was designed and assessed. This project demonstrated the feasibility of such an initiative. Because of the complexity of such a process, special attention must be paid to eligible residents and medications, the need for interprofessional collaboration, and the operational process. This project is ongoing in other nursing facilities in Western Pennsylvania. PMID- 29029669 TI - CMS Moves Toward a New Payment System for Nursing Facilities. PMID- 29029670 TI - ? PMID- 29029671 TI - Presidential Address: Embracing the Repulsive: The Case for Disgust as a Functionally Central Emotional State in the Theory, Practice, and Dissemination of Cognitive-Behavior Therapy. AB - Disgust is a primary emotion, but it is also understudied in general, and in psychopathology in particular. Disgust plays a potential role in the reluctance of many non-scientifically minded practitioners from adopting evidence-based methods of treatment. This article summarizes findings from psychopathology research and treatment, and highlights basic science that potentially accounts for the hesitancy for some therapists to adopt evidence-based methods. Several recommendations are provided for future research in disgust related to both psychopathology and dissemination research. PMID- 29029672 TI - Emotion Regulation Protects Against Recurrence of Depressive Symptoms Following Inpatient Care for Major Depressive Disorder. AB - Relapse following response in psychotherapy for major depressive disorder (MDD) is a major concern. Emotion regulation (ER) has been discussed as a putative emerging and maintaining factor for depression. The purpose of the present study was to examine whether ER protects against recurrence of depression over and above residual symptoms of depression following inpatient care for MDD. ER skills (ERSQ-ES) and depression (HEALTH-49) were assessed in 193 patients with MDD (age, M = 47.4, SD = 9.6, 75.1% female, 100% Caucasian) at treatment discontinuation, 3 and 12 months after treatment. Multiple hierarchical regressions were used to examine general and specific ER as predictors of depressive symptoms at follow ups. Higher general ER predicted lower depression over and beyond residual symptoms of depression at 3-month follow-up among treatment responders but not among treatment nonresponders. With regard to specific ER skills, readiness to confront and acceptance of undesired emotions predicted lower depressive symptoms beyond residual symptoms of depression 12 months, respectively 3 and 12 months after treatment. Findings of the present study indicate that targeting general ER might be more important for remitted and less important for nonremitted patients. Enhancing ER should hence be realized in a sequential treatment design, in which a continuation phase treatment with a specific focus on ER directly follows, once patients sufficiently responded to treatment. Acceptance of undesired emotion and readiness to confront situations that cue these emotions appear to be particularly important for protecting against recurrence of depression. Future research should clarify whether findings can be generalized to outpatient care. PMID- 29029673 TI - Emotion Regulation in Borderline Personality Disorder: An Experimental Investigation of the Effects of Instructed Acceptance and Suppression. AB - Difficulties with emotion regulation are central to borderline personality disorder (BPD). Recent research suggests that avoidance of emotions in general, and emotion suppression specifically, may be commonly used among those who meet criteria for the disorder. Contemporary behavioral interventions for BPD incorporate cognitive and behavioral skills to increase emotional experiencing and acceptance while decreasing behaviors that function to escape or avoid from emotions. Few studies, however, have experimentally examined the effects of instructed emotion suppression and acceptance in BPD. The present study examined the effects of instructed use of different emotion regulation strategies on emotions, psychophysiology, and behavior in BPD. Participants with BPD, major depressive disorder (MDD), and nonpsychiatric controls (N = 193) were randomly assigned to either suppress or accept emotions during an audio recording of a social rejection scenario, and completed a behavioral measure of distress tolerance. BPD participants exhibited greater heart rate variability in the acceptance (vs. suppression) condition; this pattern was not evident within the other groups. These results suggest that deliberate use of acceptance-based emotion regulation strategies may have unique physiological effects among individuals with BPD. PMID- 29029674 TI - Patterns of Anxious Arousal During a Speech Task Between Nonanxious Controls and Individuals With Social Anxiety Disorder Pre- and Posttreatment. AB - Although research indicates that anxious arousal in response to feared stimuli is related to treatment outcome (Heimberg et al., 1990), less is known about the patterns of anxious arousal. We identified patterns of anxious arousal in individuals with social anxiety disorder (SAD) at pre- (n= 61) and posttreatment (n= 40; 12-session CBGT, Heimberg & Becker, 2002), and in non-anxious controls (NACs; n= 31) using an assessment speech task administered at pretreatment (SAD) or the pretreatment equivalent (NACs), as well as at posttreatment (SAD only). We identified nine patterns of anxious arousal across groups that we further clustered into three groups: fear habituation, fear plateau, and fear increase. Chi-square and adjusted standardized residual analyses revealed that individuals in the pretreatment SAD group displayed the fear habituation patterns significantly more than chance and the fear plateau patterns significantly less than chance. In contrast, NACs displayed the fear plateau patterns significantly more than chance and the fear habituation patterns significantly less than chance. At posttreatment, treatment non-responders displayed fear habituation patterns significantly more than chance, whereas treatment responders displayed the fear habituation patterns significantly less than chance. Findings indicate that fear habituation during an anxiety-provoking assessment task is not necessary for treatment response. PMID- 29029676 TI - Childhood ADHD and Negative Self-Statements: Important Differences Associated With Subtype and Anxiety Symptoms. AB - The current study examined the role negative self-statements have on the comorbidity between anxious symptomatology and ADHD-combined presentation (ADHD C) and ADHD-predominantly inattentive (ADHD-I). A total of 114 children and adolescents with ADHD (M age = 10.15; SD = 2.30; range = 7-16) from a clinic referred sample were grouped based on a semistructured diagnostic interview and consensus approach (ADHD-C, n = 62; ADHD-I, n = 52). Negative self-statements were measured using the Children's Automatic Thoughts Scale and the total score from the Multidimensional Anxiety Scale for Children was used to measure anxious symptomatology. Findings indicated youth diagnosed with ADHD-C, compared to those diagnosed with ADHD-I, had more frequent personal failure (Cohen's d =.40) and hostile intent negative self-statements (Cohen's d =.47). The association of ADHD subtype and negative self-statements was moderated by anxiety; negative self statements of personal failure were highest in anxious ADHD-C children (beta =.31). A second sample of 137 children and adolescents (M age = 10.61; SD = 2.26; range = 7-16) from a larger clinic-referred sample was utilized to replicate our results dimensionally. Results indicated that both hyperactivity/impulsivity (beta = .23, p < .01) and the interaction of hyperactivity/impulsivity and anxiety (beta = .17, p < .05) were significant predictors of negative self statements regarding personal failure, while holding child age, child gender, oppositional symptoms, and inattention constant. In all, negative self-statements should be considered in the treatment and assessment of ADHD with particular attention paid to ADHD subtype and internalizing comorbidity. PMID- 29029675 TI - A Meta-Analysis of Compassion-Based Interventions: Current State of Knowledge and Future Directions. AB - OBJECTIVE: Scientific research into compassion has burgeoned over the past 20 years and interventions aiming to cultivate compassion towards self and others have been developed. This meta-analysis examined the effects of compassion-based interventions on a range of outcome measures. METHOD: Twenty-one randomized controlled trials (RCTs) from the last 12 years were included in the meta analysis, with data from 1,285 participants analyzed. Effect sizes were standardized mean differences calculated using the difference in pre-post change in the treatment group and control group means, divided by the pooled pre intervention standard deviation. RESULTS: Significant between-group differences in change scores were found on self-report measures of compassion (d = 0.55, k = 4, 95% CI [0.33-0.78]), self-compassion (d = 0.70, k = 13, 95% CI [0.59-0.87]), mindfulness (d = 0.54, k = 6, 95% CI [0.38-0.71]), depression (d = 0.64, k = 9, 95% CI [0.45-0.82]), anxiety (d = 0.49, k = 9, 95% CI [0.30-0.68]), psychological distress (d = 0.47, k = 14, 95% CI [0.19-0.56]), and well-being (d = 0.51, k = 8, 95% CI [0.30-0.63]). These results remained when including active control comparisons. Evaluations of risk of bias across studies pointed towards a relative lack of publication bias and robustness of findings. However, the evidence base underpinning compassion interventions relies predominantly on small sample sizes. CONCLUSIONS: Future directions are provided for compassion research, including the need for improved methodological rigor, larger scale RCTs, increased specificity on the targets of compassion, and examination of compassion across the lifespan. Although further research is warranted, the current state of evidence highlights the potential benefits of compassion-based interventions on a range of outcomes. PMID- 29029677 TI - Exposure-Based Therapy for Symptom Preoccupation in Atrial Fibrillation: An Uncontrolled Pilot Study. AB - Atrial fibrillation (AF) is the most common cardiac arrhythmia. Patients often experience a range of symptoms resulting in a markedly reduced quality of life, and commonly show symptom preoccupation in terms of avoidance and control behaviors. Cognitive behavior therapy (CBT) has been shown to improve symptom burden and quality of life in other somatic disorders, but has never been evaluated in patients with AF. The purpose of this study was to evaluate the potential efficacy and feasibility of an AF-specific CBT protocol in an uncontrolled pilot study. The study included 19 patients with symptomatic paroxysmal (intermittent) atrial fibrillation who were assessed pre- and posttreatment and at 6-month follow-up. The CBT lasted 10 weeks and included exposure to physical sensations similar to AF symptoms, exposure to avoided situations or activities, and behavioral activation. We observed large within group improvements on the primary outcome AF-specific quality of life measurement AFEQT posttreatment (Cohen's d = 1.54; p < . 001) and at 6-month follow-up (d = 1.15; p < . 001). We also observed improvements in self-reported frequency and severity of AF symptoms. All participants completed the treatment and treatment satisfaction was high. This study demonstrates the potential efficacy and feasibility of a novel CBT approach to reduce symptoms and increase quality of life in AF patients. PMID- 29029678 TI - Positive and Negative Affect as Links Between Social Anxiety and Depression: Predicting Concurrent and Prospective Mood Symptoms in Unipolar and Bipolar Mood Disorders. AB - The co-occurrence of social anxiety and depression is associated with increased functional impairment and a more severe course of illness. Social anxiety disorder is unique among the anxiety disorders in sharing an affective profile with depression, characterized by low levels of positive affect (PA) and high levels of negative affect (NA). Yet it remains unclear how this shared affective profile contributes to the covariation of social anxiety and depressive symptoms. We examined whether self-reported PA and NA accounted for unique variance in the association between social anxiety and depressive symptoms across three groups (individuals with remitted bipolar disorder, type I [BD; n = 32], individuals with remitted major depressive disorder [MDD; n = 31], and nonpsychiatric controls [n = 30]) at baseline and follow-ups of 6 and 12 months. Low levels of PA, but not NA, accounted for unique variance in both concurrent and prospective associations between social anxiety and depression in the BD group; in contrast, high levels of NA, but not PA, accounted for unique variance in concurrent and prospective associations between social anxiety and depression in the MDD group. Limitations include that social anxiety and PA/NA were assessed concurrently and all measurement was self-report. Few individuals with MDD/BD met current diagnostic criteria for social anxiety disorder. There was some attrition at follow-up assessments. Results suggest that affective mechanisms may contribute to the high rates of co-occurrence of social anxiety and depression in both MDD and BD. Implications of the differential role of PA and NA in the relationship between social anxiety and depression in MDD and BD and considerations for treatment are discussed. PMID- 29029680 TI - Long-Term Effectiveness of Treatment-as-Usual Couple Therapy for Military Veterans. AB - Despite the fact that veterans face increased psychological and relationship distress as a result of their service-related experiences, no study to date has explored the long-term effectiveness of couple therapy for veterans. In the present investigation, 238 individuals (113 couples and 12 additional individuals) completed assessments 18 months after termination of treatment-as usual couple therapy at two Veteran Administration Medical Centers. From pretreatment to 18-month follow-up, couples experienced significant increases in relationship satisfaction (d = 0.59) and significant decreases in both psychological distress (d = -0.31) and presence of intimate partner violence (d = -0.47). Overall, pretreatment demographic, psychological, and relationship characteristics did not significantly moderate maintenance of gains across 18 months. However, African American individuals (d = -0.58) and individuals not reporting intimate partner violence at pretreatment (d = -0.46) experienced smaller improvements in relationship satisfaction through 18-month follow-up. Further, older participants showed smaller reductions in psychological symptoms 18 months after treatment (d = 0.16). Thus, for many veterans and their spouses, treatment-as-usual couple therapy is effective at intervening in psychological and relationship distress long-term. Moreover, the long-term effectiveness of couple therapy with veterans appears to generalize across many demographic, intrapersonal, and interpersonal factors. PMID- 29029681 TI - Does Situation-Specificity Affect the Operation of Implementation Intentions? AB - Interventions that encourage people to link critical situations with appropriate responses (i.e., "implementation intentions") show promise in increasing physical activity. The study tested whether implementation intentions designed to deal with generic situations are more effective than implementation intentions designed to respond to specific situations. One hundred thirty-three participants either: (a) formed implementation intentions using a volitional help sheet with 10 critical situations (i.e., standard volitional help sheet); (b) formed implementation intentions using a volitional help sheet with one generic situation (i.e., single situation volitional help sheet); or (c) did not form implementation intentions (i.e., control condition). Participants who formed implementation intentions reported more physical activity and greater self regulation than those in the control condition. There were no differences between participants who were provided with one generic critical situation and those who were provided with 10 specific critical situations. Implementation intentions successfully increased self-reported physical activity irrespective of critical situation specificity. The implication is that implementation intention-based interventions are robust and require minimal tailoring. PMID- 29029679 TI - Investigating Habituation to Premonitory Urges in Behavior Therapy for Tic Disorders. AB - Behavior therapy is effective for Persistent Tic Disorders (PTDs), but behavioral processes facilitating tic reduction are not well understood. One process, habituation, is thought to create tic reduction through decreases in premonitory urge severity. The current study tested whether premonitory urges decreased in youth with PTDs (N = 126) and adults with PTDs (N = 122) who participated in parallel randomized clinical trials comparing behavior therapy to psychoeducation and supportive therapy (PST). Trends in premonitory urges, tic severity, and treatment outcome were analyzed according to the predictions of a habituation model, whereby urge severity would be expected to decrease in those who responded to behavior therapy. Although adults who responded to behavior therapy showed a significant trend of declining premonitory urge severity across treatment, results failed to demonstrate that behavior therapy specifically caused changes in premonitory urge severity. In addition, reductions in premonitory urge severity in those who responded to behavior therapy were significant greater than those who did not respond to behavior therapy but no different than those who responded or did not respond to PST. Children with PTDs failed to show any significant changes in premonitory urges. Reductions in premonitory urge severity did not mediate the relationship between treatment and outcome in either adults or children. These results cast doubt on the notion that habituation is the therapeutic process underlying the effectiveness of behavior therapy, which has immediate implications for the psychoeducation and therapeutic rationale presented in clinical practice. Moreover, there may be important developmental changes in premonitory urges in PTDs, and alternative models of therapeutic change warrant investigation. PMID- 29029683 TI - Corrigendum. PMID- 29029682 TI - A Comparison of Veterans Who Repeat Versus Who Do Not Repeat a Course of Manualized, Cognitive-Behavioral Therapy for Posttraumatic Stress Disorder. AB - Despite evidence that cognitive-behavioral therapy (CBT) for posttraumatic stress disorder (PTSD) is effective, some individuals do not experience clinically significant reduction or remission of their PTSD symptoms. These individuals may return for additional PTSD-focused psychotherapy. However, there is no research to know whether PTSD treatment repeaters have worse symptoms prior to the initial treatment episode or display differences in other pretreatment characteristics versus nonrepeaters. Research is also needed to explore whether treatment repeaters exhibit PTSD symptom changes during an initial or second course of treatment. The current study examines differences in pretreatment characteristics and treatment response among U.S. military veterans who participated in either a single course (n = 711) or in two separate courses (n = 87) of CBT for PTSD through an outpatient Veterans Affairs PTSD treatment program. Veterans completing two courses of CBT for PTSD were more likely to be married and employed and more likely to drop out of their initial course of treatment versus those who completed a single course. Hierarchical linear models showed that reductions in PTSD symptoms during treatment were not different for those who completed a second versus single course of CBT for PTSD. However, for those participating in two courses of CBT for PTSD, a relapse in PTSD symptoms was observed between the first and second course. These findings show that a second course of CBT may be viable for those with ongoing PTSD symptoms. PMID- 29029684 TI - Validation of the three web quality dimensions of a minimally invasive surgery e learning platform. AB - INTRODUCTION: E-learning web environments, including the new TELMA platform, are increasingly being used to provide cognitive training in minimally invasive surgery (MIS) to surgeons. A complete validation of this MIS e-learning platform has been performed to determine whether it complies with the three web quality dimensions: usability, content and functionality. METHODS: 21 Surgeons participated in the validation trials. They performed a set of tasks in the TELMA platform, where an e-MIS validity approach was followed. Subjective (questionnaires and checklists) and objective (web analytics) metrics were analysed to achieve the complete validation of usability, content and functionality. RESULTS: The TELMA platform allowed access to didactic content with easy and intuitive navigation. Surgeons performed all tasks with a close-to ideal number of clicks and amount of time. They considered the design of the website to be consistent (95.24%), organised (90.48%) and attractive (85.71%). Moreover, they gave the content a high score (4.06 out of 5) and considered it adequate for teaching purposes. The surgeons scored the professional language and content (4.35), logo (4.24) and recommendations (4.20) the highest. Regarding functionality, the TELMA platform received an acceptance of 95.24% for navigation and 90.48% for interactivity. CONCLUSIONS: According to the study, it seems that TELMA had an attractive design, innovative content and interactive navigation, which are three key features of an e-learning platform. TELMA successfully met the three criteria necessary for consideration as a website of quality by achieving more than 70% of agreements regarding all usability, content and functionality items validated; this constitutes a preliminary requirement for an effective e-learning platform. However, the content completeness, authoring tool and registration process required improvement. Finally, the e-MIS validity methodology used to measure the three dimensions of web quality in this work can be applied to other clinical areas or training fields. PMID- 29029685 TI - Using structured and unstructured data to identify patients' need for services that address the social determinants of health. AB - INTRODUCTION: Increasingly, health care providers are adopting population health management approaches that address the social determinants of health (SDH). However, effectively identifying patients needing services that address a SDH in primary care settings is challenging. The purpose of the current study is to explore how various data sources can identify adult primary care patients that are in need of services that address SDH. METHODS: A cross-sectional study described patients in need of SDH services offered by a safety-net hospital's federally qualified health center clinics. SDH services of social work, behavioral health, nutrition counseling, respiratory therapy, financial planning, medical-legal partnership assistance, patient navigation, and pharmacist consultation were offered on a co-located basis and were identified using structured billing and scheduling data, and unstructured electronic health record data. We report the prevalence of the eight different SDH service needs and the patient characteristics associated with service need. Moreover, characteristics of patients with SDH services need documented in structured data sources were compared with those documented by unstructured data sources. RESULTS: More than half (53%) of patients needed SDH services. Those in need of such services tended to be female, older, more medically complex, and higher utilizers of services. Structured and unstructured data sources exhibited poor agreement on patient SDH services need. Patients with SDH services need documented by unstructured data tended to be more complex. DISCUSSION: The need for SDH services among a safety net population is high. Identifying patients in need of such services requires multiple data sources with structured and unstructured data. PMID- 29029686 TI - Online written consultation, telephone consultation and offline appointment: An examination of the channel effect in online health communities. AB - INTRODUCTION: The emergence of online health communities broadens and diversifies channels for patient-doctor interaction. Given limited medical resources, online health communities aim to provide better treatment by decreasing medical costs, making full use of available resources and providing more diverse channels for patients. OBJECTIVES: This research examines how online channel usage affects offline channels, i.e., "Online Booking, Service in Hospitals" (OBSH), and how the channel effects change with doctors' online and offline reputation. METHODS: The study uses data of 4254 doctors from a Chinese online health community. RESULTS: Our findings demonstrate a strong relationship between online health communities and offline hospital communication with an important moderating role for reputation. There are significant channel effects, wherein written consultation complements OBSH (beta=3.320, p<0.10), but telephone consultation can be a readily substitute for OBSH (beta=-9.854, p<0.001). We also find that doctors with higher online and offline reputations can attract more patients to use the OBSH (betaonline=0.433, p<0.001; betaoffline=2.318&2.123, p<0.001). Third, channel effects fluctuate, relative to doctors' online and offline reputations: doctors with higher online reputations mitigate substitution effects between telephone consultation and OBSH (beta=0.064, p<0.01), and doctors with higher offline reputations mitigate complementary effects between written consultation and OBSH (beta=-1.586&-1.417, p<0.001). CONCLUSIONS: This study contributes to both knowledge and practice. This study shows that there is channel effect in healthcare, websites' managers can encourage physicians to provide online services, especially for these physicians who do not have enough patients. PMID- 29029687 TI - A qualitative study of COPD-patients' experience of a telemedicine intervention. AB - BACKGROUND: Clinically stable patients with chronic obstructive pulmonary disease (COPD) are often followed at regular intervals regardless of the needs. Our aim was to investigate the patient perspective on receiving telemedicine with weekly submission of readings and regular video consultations (Net-COPD) as an alternative to visits in the respiratory outpatient clinic and investigating the role of telemedicine in management of severe COPD. DESIGN: Descriptive design and the method is qualitative based on semistructured interviews. METHODS: Fourteen intervention patients participated from the Danish randomized clinical trial Net COPD project. The transcribed interviews were analysed using manifest and latent content analysis. FINDINGS: Participants reported that Net-COPD brought enhanced wellbeing and a sense of security in knowing that nurses kept an eye on them and initiated appropriate interventions in case of changes in the patient's condition. This was experienced as a lifeline to the respiratory outpatient clinic, which could be contacted when needed. Through monitoring, moreover, patients developed increased awareness and better self-management of their disease. Patients also experienced more focused and less stressful meetings via video consultations, than in respiratory outpatient visits. Nevertheless it was important that it was the same health staff patient met in the video consultations. CONCLUSION: Participation in telemedicine increased the patient empowerment primarily by the sharing of data with a permanent staff of nurses. This knowledge was used to keep control of the disease in the form of extra readings and the systematic use of learned initiatives. This gave patients and relatives a sense of security. PMID- 29029689 TI - Implementation of a cloud-based electronic medical record exchange system in compliance with the integrating healthcare enterprise's cross-enterprise document sharing integration profile. AB - In 2011, the Ministry of Health and Welfare of Taiwan established the National Electronic Medical Record Exchange Center (EEC) to permit the sharing of medical resources among hospitals. This system can presently exchange electronic medical records (EMRs) among hospitals, in the form of medical imaging reports, laboratory test reports, discharge summaries, outpatient records, and outpatient medication records. Hospitals can send or retrieve EMRs over the virtual private network by connecting to the EEC through a gateway. International standards should be adopted in the EEC to allow users with those standards to take advantage of this exchange service. In this study, a cloud-based EMR-exchange prototyping system was implemented on the basis of the Integrating the Healthcare Enterprise's Cross-Enterprise Document Sharing integration profile and the existing EMR exchange system. RESTful services were used to implement the proposed prototyping system on the Microsoft Azure cloud-computing platform. Four scenarios were created in Microsoft Azure to determine the feasibility and effectiveness of the proposed system. The experimental results demonstrated that the proposed system successfully completed EMR exchange under the four scenarios created in Microsoft Azure. Additional experiments were conducted to compare the efficiency of the EMR-exchanging mechanisms of the proposed system with those of the existing EEC system. The experimental results suggest that the proposed RESTful service approach is superior to the Simple Object Access Protocol method currently implemented in the EEC system, according to the irrespective response times under the four experimental scenarios. PMID- 29029688 TI - Subject-enabled analytics model on measurement statistics in health risk expert system for public health informatics. AB - PURPOSE: This study applied open source technology to establish a subject-enabled analytics model that can enhance measurement statistics of case studies with the public health data in cloud computing. METHODS: The infrastructure of the proposed model comprises three domains: 1) the health measurement data warehouse (HMDW) for the case study repository, 2) the self-developed modules of online health risk information statistics (HRIStat) for cloud computing, and 3) the prototype of a Web-based process automation system in statistics (PASIS) for the health risk assessment of case studies with subject-enabled evaluation. The system design employed freeware including Java applications, MySQL, and R packages to drive a health risk expert system (HRES). In the design, the HRIStat modules enforce the typical analytics methods for biomedical statistics, and the PASIS interfaces enable process automation of the HRES for cloud computing. The Web-based model supports both modes, step-by-step analysis and auto-computing process, respectively for preliminary evaluation and real time computation. RESULTS: The proposed model was evaluated by computing prior researches in relation to the epidemiological measurement of diseases that were caused by either heavy metal exposures in the environment or clinical complications in hospital. The simulation validity was approved by the commercial statistics software. The model was installed in a stand-alone computer and in a cloud-server workstation to verify computing performance for a data amount of more than 230K sets. Both setups reached efficiency of about 105 sets per second. CONCLUSIONS: The Web-based PASIS interface can be used for cloud computing, and the HRIStat module can be flexibly expanded with advanced subjects for measurement statistics. The analytics procedure of the HRES prototype is capable of providing assessment criteria prior to estimating the potential risk to public health. PMID- 29029690 TI - Identifying and eliminating inefficiencies in information system usage: A lean perspective. AB - OBJECTIVES: Mismatches frequently occur between information system (IS) dictated workflows and actual workflows of IS users. The resulting impeded workflows negatively influence the efficiency with which goods or services are produced and delivered to customers. Within a healthcare context, impeded workflows can additionally have a negative impact on the safety and effectiveness of care delivered to patients. METHODS: This study evaluates the impact of an electronic health record system of a large university hospital on workflows of healthcare professionals from a lean management waste perspective. Workflow mismatches were identified from direct observations and follow-up semi-structured interviews with physicians and nurses and assessed in terms of waste generated. RESULTS: In total, 241 manifestations of waste were identified and classified according to 8 types of waste. Furthermore, noteworthy relationships among the identified manifestations of waste were found. These include differences in frequency per type of waste, certain types of waste having a cascading effect, and waste proliferating as a result of mimicked and routinized behavior. CONCLUSIONS: The knowledge obtained from this study can support (re)design of IS to better match workflows which may subsequently lead to more safe, effective and efficient patient care. PMID- 29029691 TI - Geo-spatial reporting for monitoring of household immunization coverage through mobile phones: Findings from a feasibility study. AB - BACKGROUND: The addition of Global Positioning System (GPS) to a mobile phone makes it a very powerful tool for surveillance and monitoring coverage of health programs. This technology enables transfer of data directly into computer applications and cross-references to Geographic Information Systems (GIS) maps, which enhances assessment of coverage and trends. OBJECTIVE: Utilization of these systems in low and middle income countries is currently limited, particularly for immunization coverage assessments and polio vaccination campaigns. We piloted the use of this system and discussed its potential to improve the efficiency of field based health providers and health managers for monitoring of the immunization program. METHODS: Using "30*7" WHO sampling technique, a survey of children less than five years of age was conducted in random clusters of Karachi, Pakistan in three high risk towns where a polio case was detected in 2011. Center point of the cluster was calculated by the application on the mobile. Data and location coordinates were collected through a mobile phone. This data was linked with an automated mHealth based monitoring system for monitoring of Supplementary Immunization Activities (SIAs) in Karachi. After each SIA, a visual report was generated according to the coordinates collected from the survey. RESULT: A total of 3535 participants consented to answer to a baseline survey. We found that the mobile phones incorporated with GIS maps can improve efficiency of health providers through real-time reporting and replacing paper based questionnaire for collection of data at household level. Visual maps generated from the data and geospatial analysis can also give a better assessment of the immunization coverage and polio vaccination campaigns. CONCLUSION: The study supports a model system in resource constrained settings that allows routine capture of individual level data through GPS enabled mobile phone providing actionable information and geospatial maps to local public health managers, policy makers and study staff monitoring immunization coverage. PMID- 29029692 TI - e-Health readiness assessment factors and measuring tools: A systematic review. AB - BACKGROUND: The evolving, adoption and high failure nature of health information technology (HIT)/IS/T systems requires effective readiness assessment to avert increasing failures while increasing system benefits. However, literature on HIT readiness assessment is myriad and fragmented. This review bares the contours of the available literature concluding in a set of manageable and usable recommendations for policymakers, researchers, individuals and organizations intending to assess readiness for any HIT implementation. OBJECTIVES: Identify studies, analyze readiness factors and offer recommendations. METHOD: Published articles 1995-2016 were searched using Medline/PubMed, Cinahl, Web of Science, PsychInfo, ProQuest. Studies were included if they were assessing IS/T/mHealth readiness in the context of HIT. Articles not written in English were excluded. Themes that emerged in the process of the data synthesis were thematically analysed and interpreted. RESULTS: Analyzed themes were found across 63 articles. In accordance with their prevalence of use, they included but not limited to "Technological readiness", 30 (46%); "Core/Need/Motivational readiness", 23 (37%); "Acceptance and use readiness", 19 (29%); "Organizational readiness", 20 (21%); "IT skills/Training/Learning readiness" (18%), "Engagement readiness", 16 (24%) and "Societal readiness" (14%). Despite their prevalence in use, "Technological readiness", "Motivational readiness" and "Engagement readiness" all had myriad and unreliable measuring tools. Core readiness had relatively reliable measuring tools, which repeatedly been used in various readiness assessment studies CONCLUSION: Thus, there is the need for reliable measuring tools for even the most commonly used readiness assessment factors/constructs: Core readiness, Engagement and buy-ins readiness, Technological readiness and IT Skills readiness as this could serve as an immediate step in conducting effective/reliable e-Health readiness assessment, which could lead to reduced HIT implementation failures. PMID- 29029693 TI - What can Google and Wikipedia can tell us about a disease? Big Data trends analysis in Systemic Lupus Erythematosus. AB - OBJECTIVE: To investigate trends of Internet search volumes linked to Systemic Lupus Erythematosus (SLE), on-going clinical trials and research developments associated to the disease, using Big Data monitoring and data mining. METHODS: We performed a longitudinal analysis based on the large amount of data generated by Google Trends, scientific search tools (SCOPUS, Medline/Pubmed/ClinicalTrails.gov) considering 'SLE', and 'lupus' in a 5-year web based research. Wikipedia page views were also analysed using WikiTrends and the results were compared with the search volumes generated by Google Trends. RESULTS: We observed an overall higher distribution of search volumes from Google Trends in United States, South America, Canada, South Africa, Australia and Europe (mainly Italy, United Kingdom, Spain, France, Germany), showing a geographically heterogeneity in insight into health-related behaviour of the different populations towards SLE. By comparing the search volumes analysing the Wikipedia page views of both SLE and belimumab, we found a close peak trend, reflecting the knowledge translation after the approval of belimumab for the treatment of SLE. When focusing on search volumes of Google Trends, we noticed that the highest peaks were related to news headlines that involved celebrities affected by SLE, also when comparing to the peak generated by the approval of belimumab. CONCLUSION: This new approach, able to investigate health information seeking, might give an estimate of the health-related demand and even of the health-related behaviour of SLE, bringing new light to unanswered questions. PMID- 29029694 TI - Prescriber response to computerized drug alerts for electronic prescriptions among hospitalized patients. AB - BACKGROUND: Clinical decision support systems (CDSS) reduce prescription errors, but their effectiveness is reduced by high alert rates, "alert fatigue", and indiscriminate rejection. OBJECTIVES: To compare acceptance rates of alerts generated by the SafeRx(r) prescription CDSS among different alert types and departments in a tertiary care hospital, identify factors associated with alert acceptance, and determine whether alert overrides were justified. METHODS: In a retrospective study, we compared acceptance rates of all prescription alerts generated in 2013 in 18 departments of Israel's largest tertiary care center. In a prospective study in 2 internal medicine departments, we collected data on factors potentially associated with alert override, and an expert panel evaluated the justification for each overridden alert. We used multivariate analyses to examine the association between patient and physician-related factors and alert acceptance. RESULTS: In the retrospective study, of 390,841 prescriptions, 37.1% triggered at least one alert, 5.3% of which were accepted. Acceptance rates ranged from 7.9% for excessive dose alerts to 4.0% for duplicate drug and major drug-drug interactions alerts (p<0.001). In the prospective study, common reasons for alert overriding included "irrelevance to the specific condition" and "medication previously tolerated by the patient". Weekend shifts (incident rate ratio [IRR]=1.50 [95% CI, 1.01-2.22]) and a specific department (IRR=1.87 [1.23 2.87]) were associated with higher alert acceptance, while night shift (IRR=0.47 [0.26-0.85]) was associated with alert override. Most alert overrides (88.6%) were judged justified. CONCLUSIONS: The vast majority of SafeRx(r) alerts are overridden, and overriding is justified in most cases. Minimizing the number of alerts is essential to reduce the likelihood of developing "alert fatigue". Our findings may inform a rational, department-specific approach for alert silencing. PMID- 29029696 TI - Perceived critical success factors of electronic health record system implementation in a dental clinic context: An organisational management perspective. AB - BACKGROUND: Electronic health records (EHR) make health care more efficient. They improve the quality of care by making patients' medical history more accessible. However, little is known about the factors contributing to the successful EHR implementation in dental clinics. OBJECTIVES: This article aims to identify the perceived critical success factors of EHR system implementation in a dental clinic context. METHODS: We used Grounded Theory to analyse data collected in the context of Brunei's national EHR - the Healthcare Information and Management System (Bru-HIMS). Data analysis followed the stages of open, axial and selective coding. RESULTS: Six perceived critical success factors emerged: usability of the system, emergent behaviours, requirements analysis, training, change management, and project organisation. The study identified a mismatch between end-users and product owner/vendor perspectives. DISCUSSION: Workflow changes were significant challenges to clinicians' confident use, particularly as the system offered limited modularity and configurability. Recommendations are made for all the parties involved in healthcare information systems implementation to manage the change process by agreeing system goals and functionalities through wider consensual debate, and participated supporting strategies realised through common commitment. PMID- 29029695 TI - Continued use of an interactive computer game-based visual perception learning system in children with developmental delay. AB - This study developed an interactive computer game-based visual perception learning system for special education children with developmental delay. To investigate whether perceived interactivity affects continued use of the system, this study developed a theoretical model of the process in which learners decide whether to continue using an interactive computer game-based visual perception learning system. The technology acceptance model, which considers perceived ease of use, perceived usefulness, and perceived playfulness, was extended by integrating perceived interaction (i.e., learner-instructor interaction and learner-system interaction) and then analyzing the effects of these perceptions on satisfaction and continued use. Data were collected from 150 participants (rehabilitation therapists, medical paraprofessionals, and parents of children with developmental delay) recruited from a single medical center in Taiwan. Structural equation modeling and partial-least-squares techniques were used to evaluate relationships within the model. The modeling results indicated that both perceived ease of use and perceived usefulness were positively associated with both learner-instructor interaction and learner-system interaction. However, perceived playfulness only had a positive association with learner-system interaction and not with learner-instructor interaction. Moreover, satisfaction was positively affected by perceived ease of use, perceived usefulness, and perceived playfulness. Thus, satisfaction positively affects continued use of the system. The data obtained by this study can be applied by researchers, designers of computer game-based learning systems, special education workers, and medical professionals. PMID- 29029697 TI - The identification of transcriptional regulation related gene of laccase poxc through yeast one-hybrid screening from Pleurotus ostreatus. AB - Pleurotus ostreatus laccase gene poxc is transcriptionally induced by copper, and several putative MREs have been found and confirmed in its promoter region. However, the related transcription factors mediating copper response via MREs have not been reported. To isolate MRE binding proteins, we carried out yeast one hybrid screens. Reporter genes containing two trimers of the cMRE2 and cMRE3 element were prepared and introduced into a yeast strain. The yeast was transformed with library cDNA that represents RNA isolated from CuSO4-treated fungi of P. ostreatus. From the screen of yeast transformants, we isolated ltf4 which encoded protein with HTH DNA binding domain. Electrophoretic mobility shift assay suggested direct and specific interaction of ltf4 with the MRE2 of poxc. Quantitative RT-PCR showed that the transcription of ltf4 was significantly up regulated after the copper addition, and the expression trend was consistent with the poxc after copper introduction. The results indicated that ltf4 could interact with cMRE2 and thus participated in the regulation of copper mediated poxc transcription in P. ostreatus. PMID- 29029698 TI - Intrinsic disorder is a common structural characteristic of RxLR effectors in oomycete pathogens. AB - Intrinsic disorder is common in nature and has been studied to play important biological roles in bacterial effectors. However, disorder in oomycete RxLR effectors has not been investigated previously and the roles are unknown. Our results of PONDR VL-XT disorder analysis showed that predicted oomycete RxLR effectors were significantly more disordered than other effectors and secretome. The distribution of disorder content presented preference that RxLR-dEER regions were enriched in disordered residues, suggesting potential role of disorder in effector translocation. In contrast, the disorder content was depleted in the C terminal regions, especially for W/Y/L motifs. We also found that around 42 % of putative RxLR proteins were predicted to contain at least one alpha-helix-forming molecular recognition feature (alpha-MoRF), and most alpha-MoRFs were located in the C-terminal regions. Furthermore, both of the disorder mutants of PsAvh18 and PcAvh207 lost the cell death-inducing activity, indicating the potential important role of disordered structure in RxLR effector function. Overall, these results demonstrate that intrinsic disorder is a common characteristic of oomycete RxLR proteins, and we postulate that such structure feature may be important for effector translocation or function. This study extends our understanding of RxLR effectors in protein structures, and opens up new directions to explore novel mechanisms of oomycete RxLR effectors. PMID- 29029699 TI - Viability, purity, and genetic stability of entomopathogenic fungi species using different preservation methods. AB - Preservation methods for entomopathogenic fungi (EPF) require effective protocols to ensure uniform processes and to avoid alterations during storage. The aim of this study was to preserve Beauveria bassiana, Metarhizium acridum, M. anisopliae, M. rileyi, Isaria javanica, Hirsutella thompsonii, H. citriformis and Lecanicillium lecanii in mineral oil (MO), sterile water (SW), silica gel (SG), lyophilisation (L), ultracold-freezing at -70 degrees C, and cryopreservation at -196 degrees C. The viability and purity of the fungi were then verified: phenotypic characteristics were evaluated qualitatively at 6, 12 and 24 m. Genetic stability was tested by amplified fragment length polymorphisms (AFLP) analysis at 24 m. Of the eight species of EPF, three remained viable in SW, five in MO and L, six at -70 degrees C, seven in SG, and eight at -196 degrees C. No significant changes were observed in AFLP patterns at 24 m of storage. The most effective preservation methods for EPF were SG, L, -70 and -196 degrees C. Beauveria bassiana, M. acridum, M. anisopliae, M. rileyi and I. javanica remained stable with all methods, while the remaining species were less compatible. The optimisation of preservation methods for EPF facilitates the development of reliable protocols to ensure their inherent characteristics in culture collections. PMID- 29029700 TI - Lipid components of bile increase the protective effect of conjugated bile salts against antifungal drugs. AB - Fungi and bacteria can persist in the human gall bladder. Previous studies have shown that bile protects Candida albicans in this cryptic host niche from antifungals, providing a reservoir for intestinal re-colonization after discontinuation of antifungal therapy. Bile and conjugated bile salts trap antifungals in micelles, thereby reducing their bioavailability and possibly promoting the development of drug resistance. Here we show that the protective effect of bile and conjugated bile salts is not limited to C. albicans, but also observed with other fungi. Interestingly, bile, but not conjugated bile salts conferred resistance of C. albicans against fluconazole and only bile mediated resistance of Aspergillus terreus against voriconazole. To investigate this higher potency of bile we aimed in a step-wise reconstitution of bile from conjugated bile salts. Neither addition of phospholipids nor saturated fatty acids protected from azoles. In contrast, supplementation with polyunsaturated fatty acids increased azole resistance and decreased the critical micelle concentration of conjugated bile salts to the level of bile. Therefore, polyunsaturated fatty acids are vital for mixed micelle formation with high potential to trap antifungals. As biliary infections are difficult to treat, drug efficacy in the biliary system should be tested by using reconstituted synthetic bile. PMID- 29029701 TI - Out of Asia: Biogeography of fungal populations reveals Asian origin of diversification of the Laccaria amethystina complex, and two new species of violet Laccaria. AB - Purple Laccaria are ectomycorrhizal basidiomycetes associated with temperate forests all over the Northern Hemisphere in at least two taxa: Laccaria amethysteo-occidentalis in North America, and L. amethystina complex in Eurasia, as shown by Vincenot et al. (2012). Here, we combine a further study of the genetic structure of L. amethystina populations from Europe to southwestern China and Japan, using neutral Single Sequence Repeat (SSR; microsatellite) markers; and a systematic description of two novel Asian species, namely Laccaria moshuijun and Laccaria japonica, based on ecological, morphological, and molecular criteria (rDNA sequences). Population genetics provides evidence of the ancient isolation of three regional groups, with strong signal for speciation, and suggests a centre of origin of modern populations closest to present-day Chinese populations. Phylogenetic analyses confirm speciation at the molecular level, reflected in morphological features: L. moshuijun samples (from Yunnan, China) display strongly variable cheilocystidia, while L. japonica samples (from Japan) present distinctive globose to subglobose spores and clavate cheilocystidia. This study of a species complex primarily described with an extremely wide ecological and geographical range sheds new light on the biodiversity and biogeography of ectomycorrhizal fungi. PMID- 29029702 TI - Lysyl-tRNA synthetase (Krs) acts a virulence factor of Beauveria bassiana by its vital role in conidial germination and dimorphic transition. AB - Krs is a class II lysyl-tRNA synthetase (KRS) that is involved in cytosolic protein synthesis in budding yeast but functionally has not been explored in filamentous fungi. Previous transcriptomic analysis has revealed that a Krs coding gene is likely involved in pathogenesis of Beauveria bassiana, a classic insect pathogen as a global source of fungal insecticides. Here, we show that Krs is localized in the cytoplasm of hyphal cells and acts as a substantial virulence factor in B. bassiana. Deletion of krs resulted in 10-h delayed germination, decreased (15 %) thermotolerance, and lowered (46 %) UV-B resistance of aerial conidia despite limited impact on conidiation capacity and slight or inconspicuous influence on radial growth on rich and minimal media with different carbon (10 sugars/polyols) and nitrogen (17 amino acids) sources. The deletion mutant suffered 58 % reduction in submerged blastospore yield (an index of in vitro dimorphic transition rate) in a minimal medium, and the reduction increased to 71 % in another trehalose-based medium mimic to insect haemolymph. In standardized bioassays, median lethal actions of Deltakrs against Galleria mellonella larvae through the infections passing and bypassing the insect cuticle were prolonged to 192 and 153 h from wild-type median lethal time (LT50) estimates of 119 and 109 h, respectively. Microscopic examination revealed 2-d delayed presence of in vivo formed hyphal bodies in the haemolymph of the larvae infected by Deltakrs in either mode. These findings unveil a vital role of Krs in conidial germination and dimorphic transition and its contribution to the fungal potential against arthropod pests. PMID- 29029703 TI - Comparative genomics of maize ear rot pathogens reveals expansion of carbohydrate active enzymes and secondary metabolism backbone genes in Stenocarpella maydis. AB - Stenocarpella maydis is a plant pathogenic fungus that causes Diplodia ear rot, one of the most destructive diseases of maize. To date, little information is available regarding the molecular basis of pathogenesis in this organism, in part due to limited genomic resources. In this study, a 54.8 Mb draft genome assembly of S. maydis was obtained with Illumina and PacBio sequencing technologies, and analyzed. Comparative genomic analyses with the predominant maize ear rot pathogens Aspergillus flavus, Fusarium verticillioides, and Fusarium graminearum revealed an expanded set of carbohydrate-active enzymes for cellulose and hemicellulose degradation in S. maydis. Analyses of predicted genes involved in starch degradation revealed six putative alpha-amylases, four extracellular and two intracellular, and two putative gamma-amylases, one of which appears to have been acquired from bacteria via horizontal transfer. Additionally, 87 backbone genes involved in secondary metabolism were identified, which represents one of the largest known assemblages among Pezizomycotina species. Numerous secondary metabolite gene clusters were identified, including two clusters likely involved in the biosynthesis of diplodiatoxin and chaetoglobosins. The draft genome of S. maydis presented here will serve as a useful resource for molecular genetics, functional genomics, and analyses of population diversity in this organism. PMID- 29029705 TI - Introduction. PMID- 29029704 TI - Wood decay fungus Flavodon ambrosius (Basidiomycota: Polyporales) is widely farmed by two genera of ambrosia beetles. AB - The ambrosia fungus Flavodon ambrosius is the primary nutritional mutualist of ambrosia beetles Ambrosiodmus and Ambrosiophilus in North America. F. ambrosius is the only known ambrosial basidiomycete, unique in its efficient lignocellulose degradation. F. ambrosius is associated with both native American beetle species and species introduced from Asia. It remains unknown whether F. ambrosius is strictly a North American fungus, or whether it is also associated with these ambrosia beetle genera on other continents. We isolated fungi from the mycangia and galleries of ambrosia beetles Ambrosiodmus rubricollis, Ambrosiodmus minor, Ambrosiophilus atratus, and Ambrosiophilus subnepotulus in China, South Korea, and Vietnam. Phylogenetic analyses suggest that all Asian and North American isolates represent a single haplotype. These results confirm Flavodon ambrosius as the exclusive mutualistic fungus of multiple Ambrosiodmus and Ambrosiophilus beetle species around the world, making it the most widespread known ambrosia fungus species, both geographically and in terms of the number of beetle species. The Flavodon-beetle symbiosis appears to employ an unusually strict mechanism for maintaining fidelity, compared to the symbioses of the related Xyleborini beetles, which mostly vector more dynamic fungal communities. PMID- 29029706 TI - Pulmonary Embolism in 2017: How We Got Here and Where Are We Going? AB - In the 1970s, both the Urokinase Pulmonary Embolism and Urokinase-Streptokinase Pulmonary Embolism trials began the quest to develop thrombolytic therapy for the treatment of acute massive and submassive pulmonary embolism (PE). The goals of these studies were the immediate reduction in clot burden, restoration of hemodynamic stability, and improved survival. Major bleeding became the major barrier for clinicians to employ these therapies. From 1980s to the present time, a number of studies using recombinant tissue-type plasminogen activator for achieving these same above outcomes were completed but major bleeding continued to remain an adoption barrier. Finally, the concept of bringing the thrombolytic agent into the clot has entered the quest for the Holy Grail in the treatment of PE. This article will review all the major trials using peripheral thrombolysis and provide insight into the need for a team approach to pulmonary care (Pulmonary Embolism Response Team), standardization of pulmonary classification, and the need for trials designed for both short- and long-term outcomes using thrombolysis for selected PE populations. PMID- 29029707 TI - Epidemiology, Pathophysiology, Stratification, and Natural History of Pulmonary Embolism. AB - Pulmonary embolism (PE) is a common and potentially fatal form of venous thromboembolism that can be challenging to diagnose and manage. PE occurs when there is obstruction of the pulmonary vasculature and is a common cause of morbidity and mortality in the United States. A combination of acquired and inherited factors may contribute to the development of this disease and should be considered, since they have implications for both susceptibility to PE and treatment. Patients with suspected PE should be evaluated efficiently to diagnose and administer therapy as soon as possible, but the presentation of PE is variable and nonspecific so diagnosis is challenging. PE can range from small, asymptomatic blood clots to large emboli that can occlude the pulmonary arteries causing sudden cardiovascular collapse and death. Thus, risk stratification is critical to both the prognosis and management of acute PE. In this review, we discuss the epidemiology, risk factors, pathophysiology, and natural history of PE and deep vein thrombosis. PMID- 29029708 TI - Anticoagulation in Pulmonary Embolism: Update in the Age of Direct Oral Anticoagulants. AB - The emergence of direct oral anticoagulants (DOACs) represents a major advancement and paradigm shift in the treatment of venous thromboembolism. Currently, dabigatran, rivaroxaban, apixiban, and edoxoban are approved and used routinely for the prevention and treatment of patients with venous thromboembolism. Because each of the DOACs has different doses and dosing regimens, clinicians need to become familiar with their use. This article focuses on the practical considerations of how and when to use the DOACs. It also aims to explore follow-up monitoring, use in special populations, reversal agents, periprocedural management, and how to handle bleeding complications with the DOACs. PMID- 29029709 TI - Medical Management of Pulmonary Embolism: Beyond Anticoagulation. AB - Pulmonary embolism (PE) is a common medical condition that carries significant morbidity and mortality. Although diagnosis, anticoagulation, and interventional clot-burden reduction strategies represent the focus of clinical research and care in PE, appropriate risk stratification and supportive care are crucial to ensure good outcomes. In this chapter, we will discuss the medical management of PE from the time of presentation to discharge, focusing on the critical care of acute right ventricular failure, anticoagulation of special patient populations, and appropriate follow-up testing after acute PE. PMID- 29029710 TI - Systemic Thrombolysis for Pulmonary Embolism: Who and How. AB - Anticoagulation has been shown to improve mortality in acute pulmonary embolism (PE). Initiation of anticoagulation should be considered when PE is strongly suspected and the bleeding risk is perceived to be low, even if acute PE has not yet been proven. Low-risk patients with acute PE are simply continued on anticoagulation. Severely ill patients with high-risk (massive) PE require aggressive therapy, and if the bleeding risk is acceptable, systemic thrombolysis should be considered. However, despite clear evidence that parenteral thrombolytic therapy leads to more rapid clot resolution than anticoagulation alone, the risk of major bleeding including intracranial bleeding is significantly higher when systemic thrombolytic therapy is administered. It has been demonstrated that right ventricular dysfunction, as well as abnormal biomarkers (troponin and brain natriuretic peptide) are associated with increased mortality in acute PE. In spite of this, intermediate-risk (submassive) PE comprises a fairly broad clinical spectrum. For several decades, clinicians and clinical trialists have worked toward a more aggressive, yet safe solution for patients with intermediate-risk PE. Standard-dose thrombolysis, low-dose systemic thrombolysis, and catheter-based therapy which includes a number of devices and techniques, with or without low-dose thrombolytic therapy, have offered potential solutions and this area has continued to evolve. On the basis of heterogeneity within the category of intermediate-risk as well as within the high-risk group of patients, we will focus on the use of systemic thrombolysis in carefully selected high- and intermediate-risk patients. In certain circumstances when the need for aggressive therapy is urgent and the bleeding risk is acceptable, this is an appropriate approach, and often the best one. PMID- 29029711 TI - Surgical Embolectomy for Massive and Submassive Pulmonary Embolism and Pulmonary Thromboendarterectomy for Chronic Thromboembolic Pulmonary Hypertension. AB - Surgical therapy for massive acute pulmonary embolism has improved with the use of rapid response teams and selective bedside extracorporeal membrane oxygenation initiation. The chronic consequence of unresolved pulmonary embolism is a treatable form of pulmonary hypertension. Pulmonary thromboendarterectomy is a curative operation in selected cases, operated upon in an experienced center with the multidisciplinary team including imaging, pulmonary medicine, and cardiothoracic surgery. PMID- 29029712 TI - Advanced Cardiopulmonary Support for Pulmonary Embolism. AB - Management of high-risk pulmonary embolism (PE) requires an understanding of the pathophysiology of PE, options for rapid clot reduction, critical care interventions, and advanced cardiopulmonary support. PE can lead to rapid respiratory and hemodynamic collapse via a complex sequence of events leading to acute right ventricular failure. Importantly, reduction in pulmonary vascular resistance must be accomplished either by systemic thrombolytics, catheter directed thrombolytics, endovascular clot extraction, or surgical embolectomy. There are important advances in these techniques all of which have a niche role in the cardiopulmonary stabilization of critically ill patient with PE. Critical care support surrounding the above interventions is necessary. Maintenance of systemic perfusion and cardiac output may require careful titration of vasopressors, inotropes, and preload. Extreme caution should be taken with approach to intubation and positive pressure ventilation. A hemodynamically neutral induction with preparations for circulatory collapse should be the goal. Once intubated, the effect of positive pressure on pulmonary vascular resistance and right ventricular hemodynamics is necessary. Veno-arterial extra corporeal membrane oxygenation plays an increasingly important role in the stabilization of the hemodynamically collapsed patient who either has a contraindication to systemic lytics, failed systemic lytics, or requires a bridge to surgical or catheter embolectomy. Veno-arterial extra corporeal membrane oxygenation has also been used alone to stabilize the circulation until hemodynamics normalize on anticoagulation and has also been used in tenuous patient as a safety net for endovascular procedures. PMID- 29029714 TI - Catheter-Directed Therapy for Acute Submassive Pulmonary Embolism: Summary of Current Evidence and Protocols. AB - Treatment of acute submassive pulmonary embolism (PE) with thrombolytic therapy remains an area of controversy. For patients who fail or who have contraindications to systemic thrombolysis, catheter-directed therapy (CDT) may be offered depending on the patient's condition and the available institutional resources to perform CDT. Although various CDT techniques and protocols exist, the most studied method is low-dose catheter-directed thrombolytic infusion without mechanical thrombectomy. This article reviews current protocols and data on the use of CDT for acute submassive pulmonary embolism. PMID- 29029713 TI - Techniques and Devices for Catheter-Directed Therapy in Pulmonary Embolism. AB - The clinical presentation of a patient with acute pulmonary embolism (PE) can be classified into 3 categories: low-risk, submassive (presence of right heart strain), and massive (hemodynamic compromise). Massive PE is associated with high morbidity or mortality and typically treated with systemic intravenous thrombolysis. Over the last 2 decades, however, catheter-directed techniques have become an increasingly popular treatment modality for patients with a contraindication to systemic thrombolysis or without clinical improvement after systemic thrombolysis. Furthermore, endovascular treatment for patients with submassive PE has been of great interest due to the significantly increased mortality associated with right heart strain, and prospective clinical trials have demonstrated catheter-directed thrombolysis to decrease right heart strain earlier than systemic anticoagulation alone. This article describes available devices and endovascular techniques used to treat patients with massive and submassive acute PE. PMID- 29029715 TI - The Role of Inferior Vena Cava Filters in Pulmonary Embolism. AB - Pulmonary embolism (PE) is a cause of significant morbidity and mortality, with an estimated 600,000 cases of clinically significant PE in the United States annually, and roughly 200,000 deaths per annum directly attributable to PE. By far the most frequent cause of PE is deep vein thrombosis originating in the lower extremities, which travels to the pulmonary vasculature. The mainstay of treatment is anticoagulation, but multiple additional treatments exist for patients in whom anticoagulation is inadequate or contraindicated. The absolute indications for inferior vena cava (IVC) filtration are narrow, but many filters are placed in patients with relative indications. There is growing concern for overuse of IVC filters, with a relatively low rate of retrieval. It is essential for interventional radiologists to understand the appropriate and correct use and retrieval of IVC filters. Familiarity with placement techniques, protocols and techniques for retrieval, current and emerging technologies, and the clinical model for management of venous thromboembolism, will ensure that interventional radiologists remain an integral member of the care team for these often complex patients. PMID- 29029716 TI - Balloon Pulmonary Angioplasty in Chronic Thromboembolic Pulmonary Hypertension: New Horizons in the Interventional Management of Pulmonary Embolism. AB - Chronic thromboembolic pulmonary hypertension (CTEPH) is an underdiagnosed potential complication of acute or recurrent pulmonary thromboembolic disease. Multiple studies suggest that up to 5% of patients with acute pulmonary thromboembolic disease go on to develop CTEPH. The prognosis of untreated CTEPH is poor, but advances in medical and surgical treatments over the past few decades have improved patient outcomes. The gold standard and curative treatment for CTEPH is pulmonary endarterectomy; however, some patients are inoperable and others who have undergone pulmonary endarterectomy experience persistent or recurrent pulmonary hypertension despite medical therapy. In recent years, balloon pulmonary angioplasty has emerged as a primary and adjunctive treatment for these CTEPH patients at expert or specialized centers. This review outlines an approach to balloon pulmonary angioplasty for CTEPH, including clinical presentation and evaluation; patient selection and indications; treatment planning; equipment and technique; overcoming technical challenges; recognition and management of complications; postprocedural care and clinical follow-up; and expected outcomes. PMID- 29029717 TI - The Role of the Pulmonary Embolism Response Team: How to Build One, Who to Include, Scenarios, Organization, and Algorithms. AB - Pulmonary embolism response teams (PERTs) are multidisciplinary response teams aimed at delivering a range of diagnostic and therapeutic modalities to patients with pulmonary embolism. These teams have gained traction on a national scale. However, despite sharing a common goal, individual PERT programs are quite individualized-varying in their methods of operation, team structures, and practice patterns. The tendency of such response teams is to become intensely structured, algorithmic, and inflexible. However, in their current form, PERT programs are quite the opposite. They are being creatively customized to meet the needs of the individual institution based on available resources, skills, personnel, and institutional goals. After a review of the essential core elements needed to create and operate a PERT team in any form, this article will discuss the more flexible feature development of the nascent PERT team. These include team planning, member composition, operational structure, benchmarking, market analysis, and rudimentary financial operations. PMID- 29029718 TI - The Future of Catheter-Directed Therapy: Data Gaps, Unmet Needs, and Future Trials. AB - This article will focus on 3 avenues for future research: (1) addressing the lack of short- and long-term clinical outcome research on catheter-directed therapy; (2) determining the safety and efficacy of novel thrombus removal devices; and (3) translating our knowledge of the pathobiology and pathophysiology of pulmonary embolism into novel diagnostic and therapeutic strategies. PMID- 29029719 TI - Erratum to "Not just guess work: Tips for observation, brainstorming, and prototyping." Vasc Interv Radiol 20 (2017) 94-100. PMID- 29029720 TI - Corrigendum to "Associations of herd-level housing, management, and lameness prevalence with productivity and cow behavior in herds with automated milking systems" (J. Dairy Sci. 99:9069-9079). PMID- 29029721 TI - Corrigendum to "A survey of dairy calf management practices among farms using manual and automated milk feeding systems in Canada" (J. Dairy Sci. 100:6872 6884). PMID- 29029722 TI - The First "Virus Hunters". AB - The history of virology is a history of conceptual and technological inventions and breakthroughs. The development of filters made of porcelain or kieselgur by the end of the 19th century which withheld bacteria allowed the identification of infectious agents smaller than bacteria and noncultivable on the media known at that time and used to grow bacteria. Even finer-grain filters resulted in the observation that the ultravisible novel infectious agents are in fact of particulate nature. Infections of plants and animals were the first to be attributed to these tiny entities. Proof resulted from experimental infection of the natural hosts (including humans). Thus, of the first 30 viruses identified, 20 are veterinary viruses, i.e. infectious agents of poultry and livestock. The discovery that bacteria also have viruses in the 1910s expanded the viral universe which continues today. Filterability and ultravisibility remained a hallmark for the identification of viruses until the advent of the electron microscope in the late 1930s marking another technological breakthrough in virology. Cell culture techniques allowed virus propagation outside the infected organism. In the past decades, the advent and development of molecular biology has brought more innovations culminating in the rapid and accurate determination of genomic material of a variety of living beings including viruses in a hitherto unknown speed and depth using next-generation sequencing and metagenomic analyses. Thus, it is no surprise that new viruses are detected constantly including specimens of unprecedented size and shape. Virologists agree that the viral universe is immense, and only a small fraction has been explored yet. PMID- 29029723 TI - The Expanding Field of Mammalian Astroviruses: Opportunities and Challenges in Clinical Virology. AB - Astroviruses are best known as being one of the leading causes of diarrhea in infants and were first described in this context in 1975. In its first years, astrovirus research was mainly restricted to electron microscopy and serology studies. The ability to culture some of these viruses in vitro allowed a first consequent step forward, especially at the molecular level. Since the emergence of more powerful genetic methods, though, the face of this research field has dramatically changed and evolved. From the exponential number of discoveries of new astrovirus strains in the most varied of animal species to their association with atypical diseases, these viruses revealed a lot of surprises, and many more are probably still waiting to be uncovered. This chapter summarizes the most important knowledge about astroviruses and discusses the implication of the latest findings in this area of research. PMID- 29029724 TI - New Leaves in the Growing Tree of Pestiviruses. AB - Pestiviruses are a group of viruses of veterinary importance infecting livestock animals like pigs, cattle, and sheep, and also wildlife animals like wild boar and different deer species. While for decades only four classical species (Classical swine fever virus, Bovine viral diarrhea virus types 1 and 2, Border disease virus), and a few so-called atypical pestiviruses were known (e.g., Giraffe virus, Pronghorn virus, HoBi virus), a series of novel pestiviruses was identified in the last years (Bungowannah virus, Bat pestivirus, Norway rat pestivirus, Atypical porcine pestivirus, LINDA virus). The Australian Bungowannah virus could be isolated and further characterized by classical sequencing, but all the other latest novel pestiviruses were identified by metagenomics using next-generation sequencing technologies. Here, we describe these new viruses and their discovery and characterization. Differentiation is made between the occurrence of classical pestiviruses in new species and novel viruses or virus types. PMID- 29029725 TI - Bluetongue Virus: From BTV-1 to BTV-27. AB - Bluetongue virus (BTV) is the type species of genus Orbivirus within family Reoviridae. Bluetongue virus is transmitted between its ruminant hosts by the bite of Culicoides spp. midges. Severe BT cases are characterized by symptoms including hemorrhagic fever, particularly in sheep, loss of productivity, and death. To date, 27 BTV serotypes have been documented. These include novel isolates of atypical BTV, which have been almost fully characterized using deep sequencing technologies and do not rely on Culicoides vectors for their transmission among hosts. Due to its high economic impact, BT is an Office International des Epizooties (OIE) listed disease that is strictly controlled in international commercial exchanges. During the 20th century, BTV has been endemic in subtropical regions. In the last 15 years, novel strains of nine "typical" BTV serotypes (1, 2, 4, 6, 8, 9, 11, 14, and 16) invaded Europe, some of which caused disease in naive sheep and unexpectedly in bovine herds (particularly serotype 8). Over the past few years, three novel "atypical" serotypes (25-27) were characterized during sequencing studies of animal samples from Switzerland, Kuwait, and France, respectively. Classical serotype-specific inactivated vaccines, although expensive, were very successful in controlling outbreaks as shown with the northern European BTV-8 outbreak which started in the summer of 2006. Technological jumps in deep sequencing methodologies made rapid full characterizations of BTV genome from isolates/tissues feasible. Next-generation sequencing (NGS) approaches are powerful tools to study the variability of BTV genomes on a fine scale. This paper provides information on how NGS impacted our knowledge of the BTV genome. PMID- 29029726 TI - Loeffler 4.0: Diagnostic Metagenomics. AB - A new world of possibilities for "virus discovery" was opened up with high throughput sequencing becoming available in the last decade. While scientifically metagenomic analysis was established before the start of the era of high throughput sequencing, the availability of the first second-generation sequencers was the kick-off for diagnosticians to use sequencing for the detection of novel pathogens. Today, diagnostic metagenomics is becoming the standard procedure for the detection and genetic characterization of new viruses or novel virus variants. Here, we provide an overview about technical considerations of high throughput sequencing-based diagnostic metagenomics together with selected examples of "virus discovery" for animal diseases or zoonoses and metagenomics for food safety or basic veterinary research. PMID- 29029727 TI - The Recently Discovered Bokeloh Bat Lyssavirus: Insights Into Its Genetic Heterogeneity and Spatial Distribution in Europe and the Population Genetics of Its Primary Host. AB - In 2010, a novel lyssavirus named Bokeloh bat lyssavirus (BBLV) was isolated from a Natterer's bat (Myotis nattereri) in Germany. Two further viruses were isolated in the same country and in France in recent years, all from the same bat species and all found in moribund or dead bats. Here we report the description and the full-length genome sequence of five additional BBLV isolates from Germany (n=4) and France (n=1). Interestingly, all of them were isolated from the Natterer's bat, except one from Germany, which was found in a common Pipistrelle bat (Pipistrellus pipistrellus), a widespread and abundant bat species in Europe. The latter represents the first case of transmission of BBLV to another bat species. Phylogenetic analysis clearly demonstrated the presence of two different lineages among this lyssavirus species: lineages A and B. The spatial distribution of these two lineages remains puzzling, as both of them comprised isolates from France and Germany; although clustering of isolates was observed on a regional scale, especially in Germany. Phylogenetic analysis based on the mitochondrial cytochrome b (CYTB) gene from positive Natterer's bat did not suggest a circulation of the respective BBLV sublineages in specific Natterer's bat subspecies, as all of them were shown to belong to the M. nattereri sensu stricto clade/subspecies and were closely related (German and French positive bats). At the bat host level, we demonstrated that the distribution of BBLV at the late stage of the disease seems large and massive, as viral RNA was detected in many different organs. PMID- 29029728 TI - Software Dedicated to Virus Sequence Analysis "Bioinformatics Goes Viral". AB - Computer-assisted technologies of the genomic structure, biological function, and evolution of viruses remain a largely neglected area of research. The attention of bioinformaticians to this challenging field is currently unsatisfying in respect to its medical and biological importance. The power of new genome sequencing technologies, associated with new tools to handle "big data", provides unprecedented opportunities to address fundamental questions in virology. Here, we present an overview of the current technologies, challenges, and advantages of Next-Generation Sequencing (NGS) in relation to the field of virology. We present how viral sequences can be detected de novo out of current short-read NGS data. Furthermore, we discuss the challenges and applications of viral quasispecies and how secondary structures, commonly shaped by RNA viruses, can be computationally predicted. The phylogenetic analysis of viruses, as another ubiquitous field in virology, forms an essential element of describing viral epidemics and challenges current algorithms. Recently, the first specialized virus-bioinformatic organizations have been established. We need to bring together virologists and bioinformaticians and provide a platform for the implementation of interdisciplinary collaborative projects at local and international scales. Above all, there is an urgent need for dedicated software tools to tackle various challenges in virology. PMID- 29029729 TI - Schmallenberg Virus: A Novel Virus of Veterinary Importance. AB - In late 2011, unspecific clinical symptoms such as fever, diarrhea, and decreased milk production were observed in dairy cattle in the Dutch/German border region. After exclusion of classical endemic and emerging viruses by targeted diagnostic systems, blood samples from acutely diseased cows were subjected to metagenomics analysis. An insect-transmitted orthobunyavirus of the Simbu serogroup was identified as the causative agent and named Schmallenberg virus (SBV). It was one of the first detections of the introduction of a novel virus of veterinary importance to Europe using the new technology of next-generation sequencing. The virus was subsequently isolated from identical samples as used for metagenomics analysis in insect and mammalian cell lines and disease symptoms were reproduced in calves experimentally infected with both, this culture-grown virus and blood samples of diseased cattle. Since its emergence, SBV spread very rapidly throughout the European ruminant population causing mild unspecific disease in adult animals, but also premature birth or stillbirth and severe fetal malformation when naive dams were infected during a critical phase of gestation. In the following years, SBV recirculated regularly to a larger extend; in the 2014 and 2016 vector seasons the virus was again repeatedly detected in the blood of adult ruminants, and in the following winter and spring months, a number of malformed calves and lambs was born. The genome of viruses present in viremic adult animals showed a very high sequence stability; in sequences generated between 2012 and 2016, only a few amino acid substitutions in comparison to the initial SBV isolate could be detected. In contrast, a high sequence variability was identified in the aminoterminal part of the glycoprotein Gc-encoding region of viruses present in the brain of malformed newborns. This mutation hotspot is independent of the region or host species from which the samples originated and is potentially involved in immune evasion mechanisms. PMID- 29029730 TI - Assessing the Diversity of Rodent-Borne Viruses: Exploring of High-Throughput Sequencing and Classical Amplification/Sequencing Approaches. AB - Rodents are distributed throughout the world and interact with humans in many ways. They provide vital ecosystem services, some species are useful models in biomedical research and some are held as pet animals. However, many rodent species can have adverse effects such as damage to crops and stored produce, and they are of health concern because of the transmission of pathogens to humans and livestock. The first rodent viruses were discovered by isolation approaches and resulted in break-through knowledge in immunology, molecular and cell biology, and cancer research. In addition to rodent-specific viruses, rodent-borne viruses are causing a large number of zoonotic diseases. Most prominent examples are reemerging outbreaks of human hemorrhagic fever disease cases caused by arena- and hantaviruses. In addition, rodents are reservoirs for vector-borne pathogens, such as tick-borne encephalitis virus and Borrelia spp., and may carry human pathogenic agents, but likely are not involved in their transmission to human. In our days, next-generation sequencing or high-throughput sequencing (HTS) is revolutionizing the speed of the discovery of novel viruses, but other molecular approaches, such as generic RT-PCR/PCR and rolling circle amplification techniques, contribute significantly to the rapidly ongoing process. However, the current knowledge still represents only the tip of the iceberg, when comparing the known human viruses to those known for rodents, the mammalian taxon with the largest species number. The diagnostic potential of HTS-based metagenomic approaches is illustrated by their use in the discovery and complete genome determination of novel borna- and adenoviruses as causative disease agents in squirrels. In conclusion, HTS, in combination with conventional RT-PCR/PCR-based approaches, resulted in a drastically increased knowledge of the diversity of rodent viruses. Future improvements of the used workflows, including bioinformatics analysis, will further enhance our knowledge and preparedness in case of the emergence of novel viruses. Classical virological and additional molecular approaches are needed for genome annotation and functional characterization of novel viruses, discovered by these technologies, and evaluation of their zoonotic potential. PMID- 29029731 TI - Dual-target inhibitor screening against thrombin and factor Xa simultaneously by mass spectrometry. AB - An accurate, rapid, and cost-effective methodology for enzyme assay is highly demanded to screen the effect of compounds on target at the molecular level. Thrombin (EC 3.4.21.5) and factor Xa (FXa, EC 3.4.21.6) have been identified as the critical targets for the development of potential drugs with anticoagulant activity. In this study, a rapid, sensitive and accurate assay based on UHPLC MS/MS method has been developed for inhibitor screening against thrombin and factor Xa simultaneously. For thrombin and factor Xa, the Michaelis-Menten constants (Km) were calculated to be 6.14 and 57.27 MUM, respectively. The inhibition constants (Ki) for two known inhibitors, argatroban and rivaroxaban, were determined to be 16.23 and 0.41 nM, respectively. The assay was further validated through the determination of a high Z' factor value of 0.89. Finally, the developed assay was applied to screen a chemical library against two enzymes. Three hit compounds belonging to a class of sulfated polysaccharides were identified and their targets of inhibition action were further evaluated. The results indicated that the dual-target assay by UHPLC-MS/MS analysis could be used as a reliable method for screening anticoagulant agents. PMID- 29029732 TI - Determination of cyanocobalamin by isotope dilution LC-MS/MS. AB - Cyanocobalamin (CNCbl) is an active form of vitamin B12, commonly employed for the preparation of multivitamin supplements and fortified food. In this study, we present a novel analytical method for its determination based on stable isotope dilution liquid chromatography electrospray tandem mass spectrometry (ID LC MS/MS). Isotopically enriched 13C15NCbl was synthesized in-house and used as internal standard. The method was validated using NIST SRM 3280 multivitamin reference material and by comparison with an independent methodology based on LC ICPMS. The proposed method provided a detection limit of 57 pg/g and could be applied for the determination of trace level of CNCbl in multivitamin supplements with a relative standard uncertainty better than 3%. The novel ID LC-MS/MS is a primary ratio method that could become a reference for CNCbl determination in multivitamins and food supplements. The method was applied for the characterization of two NRC multivitamin tablet Certified Reference Material (CRM) candidates, VITA-1 and VITB-1 whose CNCbl levels were quantified as 2.64 +/ 0.09 and 1.75 +/- 0.12 MUg/g, respectively. PMID- 29029733 TI - Voltammetric determination of metal ions beyond mercury electrodes. A review. AB - For a long time mercury electrodes have been the main choice for the analysis of metal ions and some metalloids. However, in the last years, safety and environmental considerations have restricted their use and encouraged the search for alternative materials more environmentally friendly and with more possibilities for in-situ and flow analysis. This research has been reinforced by the popularisation of nanomaterials, biomolecules and screen-printed electrodes, as well as for the new advances in sensor miniaturization and integration of the electrodes in multi-sensor platforms and electronic tongues. The present review critically summarizes and discusses the progress made since 2010 in the development and application of new electrodes for the analysis of metals and metalloids. PMID- 29029734 TI - 3D lung spheroid cultures for evaluation of photodynamic therapy (PDT) procedures in microfluidic Lab-on-a-Chip system. AB - The purpose of this paper is to present a fully integrated microchip for the evaluation of PDT procedures efficiency on 3D lung spheroid cultures. Human lung carcinoma A549 and non-malignant MRC-5 spheroids were utilized as culture models. Spheroid viability was evaluated 24 h after PDT treatment, in which 5 aminolevulinic acid (ALA) had been used as a precursor of a photosensitizer (protoporphyrin IX - PpIX). Moreover, spheroid viability over a long-term (10 day) culture was also examined. We showed that the proposed PDT treatment was toxic only for cancer spheroids. This could be because of a much-favoured enzymatic conversion of ALA to PpIX in cancer as opposed normal cells. Moreover, we showed that to obtain high effectiveness of ALA-PDT on lung cancer spheroids additional time of spheroid after light exposure was required. It was found that PDT had been effective 5 days after PDT treatment with 3 mM ALA. To the best of our knowledge this has been the first presentation of such research performed on a 3D lung spheroids culture in a microfluidic system. PMID- 29029735 TI - Reduction of production rate in Y-shaped microreactors in the presence of viscoelasticity. AB - The viscoelasticity effects on the reaction-diffusion rates in a Y-shaped microreactor are studied utilizing the PTT rheological model. The flow is assumed to be fully developed and considered to be created under a combined action of electroosmotic and pressure forces. In general, finite-volume-based numerical simulations are conducted to handle the problem; however, analytical solutions based on the depthwise averaging approach are also obtained for the case for which there is no reaction between the inlet components. The analytical solutions are found to predict accurate results when the width to height ratio is at least 10 and acceptable results for lower aspect ratios. An investigation of the viscoelasticity effect reveals that it is accompanied by a significant reduction of the production rate and the production efficiency, defined as the ratio of the average product concentration to the inlet concentration of the limiting reactant. In addition, this effect gives rise to a more uniform transport with more symmetric concentration distributions. The pressure effects on the reaction diffusion rates are also pronounced in the presence of viscoelasticity. Finally, the influences of the product diffusivity are investigated for the first time revealing that the lower it is the thinner the area of significant production becomes. PMID- 29029736 TI - Rapid visual and spectrophotometric nitrite detection by cyclometalated ruthenium complex. AB - Quantitative determination of nitrite ion (NO2-) is of great importance in environmental and clinical investigations. A rapid visual and spectrophotometric assay for NO2- detection was developed based on a newly designed ruthenium complex, [Ru(npy)([9]aneS3)(CO)](ClO4) (denoted as RuNPY; npy = 2-(1 naphthyl)pyridine, [9]aneS3 = 1,4,7-trithiacyclononane). This complex traps NO+ produced in acidified NO2- solution, and yields observable color change within 1 min at room temperature. The assay features excellent dynamic range (1-840 MUmol L-1) and high selectivity, and its limit of detection (0.39 MUmol L-1) is also well below the guideline values for drinking water recommended by WHO and U.S. EPA. Practical use of this assay in tap water and human urine was successfully demonstrated. Overall, the rapidity and selectivity of this assay overcome the problems suffered by the commonly used modified Griess assays for nitrite determination. PMID- 29029737 TI - Surface enhanced infrared absorption spectroscopy based on gold nanostars and spherical nanoparticles. AB - Plasmonic anisotropic nanoparticles possess a number of hot spots on their surface due to the presence of sharp edges, tips or vertices, leading to a high electric field strength surrounding the nanostructures. In this paper, we explore different plasmonic nanostructures, including anisotropic gold nanostars (AuNSts) and spherical gold nanoparticles, in surface-enhanced infrared absorption spectroscopy (SEIRAS) in an attenuated total reflection (ATR) configuration. In our experiments, we observed up to 10-times enhancement of the infrared (IR) absorption of thioglycolic acid (TGA) and up to 2-times enhancement of signals for bovine serum albumin (BSA) protein on plasmonic nanostructure-based films deposited on a silicon (Si) internal reflection element (IRE) compared to bare Si IRE. The dependence of the observed enhancement on the amount of AuNSts present at the surface of the IRE has been demonstrated. Quantitative studies with both, TGA and BSA were performed, observing that the SEIRA signal can be correlated to the concentration of analyte molecules present within the evanescent field. The calibration curves in the presence of the AuNSts showed enhanced sensitivity as compared with the bare Si IRE. We finally compare efficiencies of anisotropic AuNSts and spherical citrate-capped and "bare" laser-synthesized gold nanoparticles as SEIRAS substrates for the detection of TGA and BSA. The signal obtained from AuNSts was at least 2 times higher for TGA molecules in comparison with spherical gold nanoparticles, which was explained by a more efficient generation of hot spots on anisotropic surface due to the presence of sharp edges, tips or vertices, leading to a high electric field strength surrounding the AuNSts. PMID- 29029738 TI - A redox-modulated fluorescent strategy for the highly sensitive detection of metabolites by using graphene quantum dots. AB - In this paper, a redox-modulated fluorescent strategy based on the transformation of Fe2+/Fe3+ couple and enzymatic reaction for rapid monitoring glucose and uric acid using graphene quantum dots (GQDs) as fluorescent probe was developed. Hydrogen peroxide (H2O2) can be produced by the enzymatic reaction of a series of metabolites, such as glucose and uric acid. In the presence of hydrogen peroxide, Fe2+ can be oxidized and converted to Fe3+, which have a significant quenching difference in the fluorescence of graphene quantum dots (GQDs). Thus, a sensitive and label-free biosensor for the detection of uric acid and glucose was developed. Under the optimized experimental conditions, the fluorescence intensity was linearly correlated with the concentration of uric acid and glucose in the range of 0.1-45 MUmolL-1 and 0.1-30 MUmolL-1 with a detection limit of 0.026 MUmolL-1and 0.021 MUmolL-1, respectively. The proposed method was applied to the determination of uric acid and glucose in human serum samples with satisfactory results, which had potential application to detect metabolites associated with H2O2 release. PMID- 29029739 TI - Studying the influence of stem composition in pH-sensitive molecular beacons onto their sensing properties. AB - Intracellular sensing using fluorescent molecular beacons is a potentially useful strategy for real-time, in vivo monitoring of important cellular events. This work is focused on evaluation of pyrene excimer signaling molecular beacons (MBs) for the monitoring of pH changes in vitro as well as inside living cells. The recognition element in our MB called pHSO (pH-sensitive oligonucleotide) is the loop enclosing cytosine-rich fragment that is able to form i-motif structure in a specific pH range. However, alteration of a sequence of the 6 base pairs containing stem of MB allowed the design of pHSO probes that exhibited different dynamic pH range and possessed slightly different transition midpoint between i motif and open loop configuration. Moreover, this conformational transition was accompanied by spectral changes showing developed probes different pyrene excimer monomer emission ratio triggered by pH changes. The potential of these MBs for intracellular pH sensing is demonstrated on the example of HeLa cells line. PMID- 29029741 TI - Enantioseparation of single layer native cyclodextrin chiral stationary phases: Effect of cyclodextrin orientation and a modeling study. AB - A novel native cyclodextrin (CD) chiral stationary phase (CSP) with single triazole-bridge at CD C2 position (CSP1) was prepared by anchoring mono(2A-azido 2A-deoxy)-beta-CD onto alkynyl silica via click chemistry. The effect of CD orientation on single layer CD-CSP's enantioseparation was comprehensively investigated using CSP1 (reversed orientation) and our previously reported CSP2 (C6 single triazole-bridge, normal orientation) as well as a commercial CD-CSP (Cyclobond I 2000, hybrid orientation) by separating several groups of analytes in chiral high performance liquid chromatography. It is found that the CD orientation on silica surface plays an important role in separating different racemates. CSP2 with normal CD orientation affords best separation for isoxazolines while CSP1 with reversed CD orientation better separates naringenin, hesperetin and Troger's base. CSP2 and Cyclobond I 2000 show comparable separation ability for dansyl amino acids while poor separation was found on CSP1. Besides, molecular dynamics simulation was performed under "real" separation conditions using flavanone as model analyte to reveal the essential factors for CD's chiral discrimination behaviors. PMID- 29029740 TI - A quantitative homogeneous assay for global DNA methylation levels using CpG binding domain- and methyl-CpG-binding domain-fused luciferase. AB - Global DNA methylation levels have been considered as biomarkers for cancer diagnostics because transposable elements that constitute approximately 45% of the human genome are hypomethylated in cancer cells. We have previously reported a homogeneous assay for measuring methylated CpG content of genomic DNA based on bioluminescence resonance energy transfer (BRET) using methyl-CpG-binding domain (MBD)-fused luciferase (MBD-luciferase). In this study, a homogeneous assay for measuring unmethylated CpG content of genomic DNA in the same platform was developed using CXXC domain-fused luciferase (CXXC-luciferase) that specifically recognizes unmethylated CpG. In this assay, CXXC-luciferase recognizes unmethylated CpG on genomic DNA, whereby BRET between luciferase and the fluorescent DNA intercalating dye is detected. We demonstrated that the BRET signal depended on the genomic DNA concentration (R2 = 0.99) and unmethylated CpG content determined by the bisulfite method (R2 = 0.97). There was a significant negative correlation between the BRET signal of the CXXC-luciferase-based assay and that of the MBD-luciferase-based assay (R2 = 0.92). Moreover, we demonstrated that the global DNA methylation level determined using the bisulfite method was dependent on the ratio of the BRET signal in the MBD-luciferase-based assay to the total BRET signal in the MBD-luciferase- and CXXC-luciferase-based assays (R2 = 0.99, relative standard deviation < 2.2%, and analysis speed < 35 min). These results demonstrated that global DNA methylation levels can be quantified by calculating the BRET signal ratio without any calibration curve. PMID- 29029742 TI - Preparative isoelectric focusing of microorganisms in cellulose-based separation medium and subsequent analysis by CIEF and MALDI-TOF MS. AB - Pre-separation and pre-concentration of bacteria is an important step especially when they are uncultured and bacterial concentration in the matrix is low. This study describes a preparative method based on isoelectric focusing of colored microorganisms in a cellulose-based separation medium from a high conductivity matrix. The isoelectric points found for the examined cells were 1.8 for Micrococcus luteus, 3.5 for Dietzia sp., and 4.7 for Rhodotorula mucilaginosa using capillary isoelectric focusing. The final positions of the zones of colored microbial cells in the cellulose-bed are indicated by colored pI markers. Segments of the separation medium with cells were harvested by a spatula, simply purified using centrifugation and analyzed by capillary isoelectric focusing and matrix-assisted laser desorption/ionization time of flight mass spectrometry. The determined recovery ranged from 78% to 93%. The viability of the harvested cells was verified by their cultivation. PMID- 29029743 TI - Advances of Vibrational Circular Dichroism (VCD) in bioanalytical chemistry. A review. AB - Vibrational Circular Dichroism (VCD) is a unique and relatively new spectroscopic technique that is capable of determining an absolute configuration of chiral molecules. VCD can be also used to determine structure of large macromolecules. This review highlights the most recent advances of VCD in bioanalytical chemistry. It shows that VCD is capable of unraveling supramolecular organization of peptides, proteins, saccharides, glycerophospholipids, polypeptide microcrystals, as well as amyloid fibrils and DNA. This review also demonstrates how VCD can be utilized to explore molecule-molecule interactions that determine mechanisms of chiral separations in chromatography. It aims to attract attention of scientists from all different research areas demonstrating the strength and capability of this very powerful spectroscopic technique. PMID- 29029744 TI - Hydrogels of polyaniline with graphene oxide for highly sensitive electrochemical determination of lead ions. AB - Conducting polymers with graphene/graphene oxide hydrogels represent a unique class of electrode materials for sensors and energy storage applications. In this article, we report a facile in situ method for the polymerisation of aniline resulting in the decoration of 1D conducting polyaniline (PANI) nanofibers onto the surface of 2D graphene oxide (GO) nanosheets followed by hydrogel formation at elevated temperature. The synthesized nanomaterial exhibits significant properties for the highly sensitive electrochemical determination as well as removal of environmentally harmful lead (Pb2+) ions. The square wave anodic stripping voltammetry (SWASV) determination of Pb2+ ions showed good electroanalytical performance with two linear ranges in 0.2-250 nM (correlation coefficient = 0.996) and 250-3500 nM (correlation coefficient = 0.998). The developed protocol has shown a limit of detection (LOD) of about 0.04 nM, which is much lower than that of the World Health Organization (WHO) threshold limits. The prepared electrode showed an average of ~99.4% removal of Pb2+ ions with a relative standard deviation (RSD) of 3.4%. Selectivity of the electrode towards Pb2+ ions were tested in presence of potential interferences such as Na+, K+, Ca2+, Mg2+, Cu2+, Cd2+, Hg2+, Zn2+, Co2+, Ni2+, Fe2+ and Fe3+ of similar and higher concentrations. The sensor showed good repeatability and reproducibility. The developed protocol was used to analyse samples from industrial effluents and natural water samples. The results obtained were correlated with atomic absorption spectroscopy (AAS). PMID- 29029745 TI - Synthesis of robust electrochemical substrate and fabrication of immobilization free biosensors for rapid sensing of salicylate and beta-hydroxybutyrate in whole blood. AB - An electrochemical latent redox probe, SAF 5 was designed, synthesized and characterized. A rapid and sensitive solution-based assay was demonstrated for salicylate hydroxylase (SHL). In presence of NADH at aerobic conditions, SHL catalyzed the decarboxylative hydroxylation of SAF and released a redox reporter amino ferrocene (AF 6). The release of AF 6 was monitored at interference free potential region (-50 mV vs. Ag|AgCl) using differential pulse voltammetry as signal read-out. The current signal generated by this process is highly specific, and insensitive to other biological interfering compounds. Next, the SAF incorporated SHL assay was extended to fabricate immobilization-free biosensors for rapid sensing of salicylic acid (SA) and beta-hydroxybutyrate (beta-HB) in whole blood. The described method rapidly detects SA in a linear range of 35-560 MUM with detection limit of 5.0 MUM. For beta-HB determination, the linear range was 10-600 MUM and detection limit was 2.0 MUM. Besides, the assay protocols are simple, fast, reliable, selective, sensitive and advantageous over existing methods. The whole blood assay did not required cumbersome steps such as, enzyme immobilization, pre-treatments and holds great practical potential in clinical diagnosis. PMID- 29029748 TI - Insufficient evidence for the effectiveness of nonfluoride agents on caries prevention in primary dentition. PMID- 29029746 TI - Liquid chromatography tandem mass spectrometric determination of triterpenes in human fluids: Evaluation of markers of dietary intake of olive oil and metabolic disposition of oleanolic acid and maslinic acid in humans. AB - Olive oil is rich in several minor components like maslinic (MA) and oleanolic (OA) acids which have cardioprotective, antitumor, and anti-inflammatory properties. In order to assess the health benefits in humans provided by the olive oil triterpenes (MA and OA), suitable analytical methods able to quantify the low concentrations expected in human fluids are required. In this study, the LC-MS/MS quantification of both OA and MA in plasma and urine has been evaluated. The plasmatic method is based on the direct determination of the analytes. The urinary detection requires more sensitivity which was reached by derivatization with 2-picolylamine. Additionally, the urinary species present after MA and OA ingestion were evaluated by the direct detection of several phase II metabolites previously synthesized. Our results showed that OA is metabolized as both sulfate and glucuronide conjugates whereas MA is mainly excreted as glucuronide. Based on this information, the method for the urinary detection of MA and OA involved an enzymatic hydrolysis. Both plasmatic and urinary methods were validated with suitable precision and accuracy at all tested levels. Required sensitivity was achieved in both matrices. Up to our knowledge, this is the first method able to quantify the low concentration levels of triterpenes present in urine. Samples from two healthy volunteers who received virgin olive oils with different triterpenes content were analyzed. Some preliminary clues on the metabolic disposition of OA and MA after olive oil intake are provided. PMID- 29029747 TI - An alignment algorithm for LC-MS-based metabolomics dataset assisted by MS/MS information. AB - Liquid chromatography-mass spectrometry (LC-MS) is an important analytical platform for metabolomics study. Peak alignment of metabolomics dataset is one of the keys for a successful metabolomics study. In this work, a MS/MS-based peak alignment method for LC-MS metabolomics data was developed. A rigorous strategy for screening endogenous reference variables was proposed. Firstly, candidate endogenous reference variables were selected based on MS, MS/MS and retention time in all samples. Multiple robust endogenous reference variables were obtained through further evaluation and confirmation. Then retention time of each metabolite feature was corrected by local linear regression using the four nearest neighbor robust reference variables. Finally, peak alignment was carried out based on corrected retention time, MS and MS/MS. Comparing with the other two peak alignment methods, the developed method showed a good performance and was suitable for metabolomics data with larger retention time drift. Our approach provides a simple and robust alignment method which is reliable to align LC-MS metabolomics dataset. PMID- 29029749 TI - Titanium-zirconium narrow-diameter implants may have high survival rates after 1 year. PMID- 29029750 TI - No differences important to patients between orthodontic treatment with customized fixed appliances and conventional appliances. PMID- 29029751 TI - Molar-incisor hypomineralization seems to be associated with caries experience, but the magnitude of this association is yet to be reliably determined. PMID- 29029752 TI - Low-level laser therapy may not provide any benefit in preventing and minimizing tooth sensitivity after dental bleaching. PMID- 29029753 TI - Decision aid did not reduce decision conflict in adolescents considering receiving orthodontic treatment with fixed appliances at an orthodontic clinic. PMID- 29029754 TI - Oral pathology patterns in late farmers of the Central Andes: A comparative perspective between coastal and highland populations. AB - Aiming at future comparisons with earlier hunter-gatherers or transitional populations, this paper intends to characterize and describe the oral pathology pattern of late agriculturalists from Central Andes dating to the Late Intermediate Period (LIP) and Inca periods (1000-1532 CE), and identify differences and/or similarities between coastal and highland populations. Although the botanical inventories of the LIP suggest carbohydrate-rich diets and similar components, it has been hypothesized that coastal and highland populations had, nevertheless, substantially different oral pathology patterns. We evaluated 14 indicators of oral pathology from Los Pinos (n=200) and Armatambo (n=25) sites in the Central Coast and two chronological phases from Laguna de los Condores site (LC-Inca, n=23; and LC-LIP, n=55), in the Peruvian northern highlands. The results showed a recurrent pattern of oral pathologies characterized by cervical caries (above 30%), extra-occlusal caries (above 60%), high rates of gross-gross caries, high frequency of ante mortem tooth loss, and signals of periodontal disease among these four populations. The diets of the coast were slightly more abrasive than those of the highlands. Oral pathology patterns were compatible with a slightly more cariogenic diet in the coast than in the highlands. In all four populations, those patterns were modulated by other common factors such as consumption of fermented drinks (maize beer - chicha) and the coca leaf chewing habit. PMID- 29029755 TI - Giant parathyroid lesion. PMID- 29029756 TI - Does prehospital care influence the profile of patients with acute cardiac failure? PMID- 29029757 TI - Palliative care and end-of-life care for polypathological patients. AB - Patients with advanced chronic diseases receive fragmented care, which entails high resource consumption and a poor quality of life. Uncertainty in the prognosis and scarce investigation into the importance of symptomatic control in this patient group hinders a proper therapeutic approach. Palliative care teams optimise the use of resources through comprehensive patient care, the optimization of the patient's environment, communication, the preparation of early care plans and the creation of coordinated healthcare circuits, which improve the quality of the patient's care in advanced stages of the disease. In the end-of-life phase, the therapeutic approach is focused on symptomatic control, selecting treatments according to the cause, comorbidities and the patient's wishes. To control refractory symptoms, palliative sedation is considered an indispensable option. PMID- 29029758 TI - Aspergillus flavus infection in an aortic graft: Imaging findings. PMID- 29029759 TI - Patient-centered research priorities in ovarian cancer: A systematic review of potential determinants of guideline care. AB - OBJECTIVE: To (a) determine what is known about the individual and contextual factors that may influence whether a woman with ovarian cancer receives guideline care, and (b) identify patient-centered research priorities in ovarian cancer. METHODS: A systematic review of the PubMed, MEDLINE, CINAHL Complete, and PsycInfo online databases. Eligible articles were published in English, described original research, and either (a) identified factors associated with the receipt of guideline care for ovarian cancer, or (b) described treatment decision making by women with ovarian cancer. Studies were excluded in which women with ovarian cancer did not comprise the entire sample of patient participants. Data were collected in accordance with Garrard's Matrix Method. Study quality was evaluated using the QualSyst tool for evaluating primary research papers. Relevant study findings were imported into NVivo Pro 11 for qualitative synthesis. RESULTS: The search strategy yielded 502 unique citations, of which 78 full-text articles were reviewed. Thirty-three articles met the criteria for inclusion. Study quality was high overall. Factors associated with the receipt of guideline care included race and ethnicity, socioeconomic status, insurance type, age, comorbidity, disease stage, tumor characteristics, hospital volume, hospital type, physician volume, and geographic location. Influences on treatment decision making among women with ovarian cancer included the desire to prolong survival, the patient-provider relationship, perceived ability to participate in the treatment decision, values and preferences, information needs, side effects, cost of care, and past experiences with chemotherapy. CONCLUSIONS: There is a need for further research that examines ovarian cancer treatment decision making from the perspective of the patient. Priority topics for future research may include the experiences of diverse women receiving treatment for ovarian cancer and the role of shared decision making with providers, referral networks, and practice patterns in the delivery of guideline care. PMID- 29029760 TI - [Pulmonary function alteration in laparoscopic surgery with pneumoperitoneum and abdominal wall elevation]. PMID- 29029761 TI - Multiple effects of a Gracilaria vermiculophylla invasion on estuarine mudflat functioning and diversity. AB - The invasive Japanese seaweed Gracilaria vermiculophylla has become established over the past several years in numerous European estuaries, from Portugal to Norway. In the Faou estuary (48.295 degrees N-4.179 degrees W, Brittany, France), it forms a dense population at the mud's surface. The effects of G. vermiculophylla on metabolism, diversity, and the food web were studied. Community gross primary production (GPP) and respiration (CR) during emersion, chlorophyll-a content, macrofaunal and meiofaunal diversity and abundance, and stable isotopes (delta13C and delta15N) of representative macrofaunal species and main food sources were measured at low tide in winter, spring, summer 2014, and winter 2015. Results show significant seasonal variation in GPP and CR. Moreover, GPP was significantly higher in areas where G. vermiculophylla was present than in the control area (bare mud). However, this high GPP appeared to be linked to the increase in biomass in primary producers, with their efficiency (primary productivity, i.e. assimilation number) remaining relatively stable compared with the control area. Significant variation in abundance of meiofauna and macrofauna was also detected and new epifaunal species were collected, mainly in Gracilaria colonized areas. Isotopic food-web Bayesian mixing models strongly suggested that G. vermiculophylla plays a major role in the diet of some dominant species. Mechanisms interacting with the functioning and diversity of the mudflat are discussed. Finally, the invasive seaweed G. vermiculophylla affected the mudflat ecosystem in three ways: as a new primary producer (increase in metabolism), as a habitat-forming species (changes in diversity and abundance of macrofauna and meiofauna), and as a new abundant food source, likely through the detrital pathway. PMID- 29029762 TI - Thinner cortex in patients with subjective cognitive decline is associated with steeper decline of memory. AB - We aimed to investigate associations between regional cortical thickness and rate of decline over time in 4 cognitive domains in patients with subjective cognitive decline (SCD). We included 233 SCD patients with the total number of 654 neuropsychological assessments (median = 3, range = 2-8) and available baseline magnetic resonance imaging from the Amsterdam Dementia Cohort (125 males, age: 63 +/- 9, Mini-Mental State Examination score: 28 +/- 2). We assessed longitudinal cognitive functioning at baseline and follow-up in 4 cognitive domains (composite Z-scores): memory, attention, executive function, and language. Thickness (millimeter) was estimated using FreeSurfer for frontal, temporal, parietal, cingulate, and occipital cortices. We used linear mixed models to estimate effects of cortical thickness on cognitive performance (dependent variables). There were no associations between cortical thickness and baseline cognition, but a faster subsequent rate of memory loss was associated with thinner cortex of the frontal [beta (SE) = 0.20 (0.07)], temporal [beta (SE) = 0.18 (0.07)], and occipital [beta (SE) = 0.22 (0.09)] cortices (all p < 0.05FDR). These findings illustrate that early cortical changes, particularly in the temporal cortex, herald incipient cognitive decline related to neurodegenerative diseases, most prominently Alzheimer's disease. PMID- 29029763 TI - Serotype, virulence profile, antimicrobial resistance and macrolide-resistance determinants in Streptococcus agalactiae isolates in pregnant women and neonates in Catalonia, Spain. AB - INTRODUCTION: Streptococcus agalactiae, or group B streptococci (GBS), is the main aetiological agent of early neonatal sepsis in developed countries. This microorganism belongs to the gastrointestinal tract microbiota wherefrom it can colonize the vagina and be vertically transmitted to the child either before or at birth, and subsequently cause infection in the newborn. Approximately, 50% of newborns born to women with GBS become colonized, with 1-2% developing early neonatal infection if no preventive intervention is performed. The aim of this study was to characterize and compare serotypes, virulence factors and antimicrobial resistance of GBS isolates collected from pregnant women and newborns in several hospitals in Catalonia. METHODS: 242 GBS strains were analyzed including 95 colonizers and 68 pathogenic strains isolated from pregnant women, and 79 strains isolated from neonates with sepsis in order to determine serotype, virulence and antimicrobial resistance. RESULTS: Serotype distribution was different among the three groups, with serotypes Ia and II being significantly more frequent among colonizing strains (p=0.001 and 0.012, respectively). Virulence factors bca and scpB were significantly more frequent among neonatal strains than pathogenic or colonizing strains (p=0.0001 and 0.002, respectively). Pathogenic strains were significantly more resistant to erythromycin, clindamycin and azithromycin than their non-pathogenic counterparts. CONCLUSIONS: Taking into account that neonatal sepsis represents a significant problem on a global scale, epidemiological surveillance, antimicrobial resistance and GBS virulence at the local level could provide important knowledge about these microorganisms as well as help to improve treatment and prevent invasive infection caused by this microorganism. PMID- 29029764 TI - Application of ISOCS system in the laboratory efficiency calibration. AB - ISOCS (In Situ Counting Object System) from Canberra is applied in laboratory for creating efficiency calibrations of good quality without using radioactive standards. Besides of typical sample containers used in laboratory, ISOSC system also allows modelling containers and objects of almost any shape and elemental composition. The study was based on gamma spectrometry with HPGe semiconductor detector with electronics and software spectrum analysis GENIE 2000 + ISOCS. Measuring set is equipped with portable shield system with set of collimators ISOCS Shield Systems Model ISOXSHLD from Canberra. This shielding system provides attenuation of gamma background radiation with average value 33 (for gamma energies from 186 keV to 2615.5 keV). The portable shield system can be used for low-background laboratory measurements. For this purpose a measuring vessel of new geometry was constructed: the polystyrene cylinder with a height of 40 mm and a diameter of 70 mm. The efficiency calibration for this container was performed using both ISOCS system and classical calibration standard in the same geometry. In order to verify the correctness of performed calibration procedures, the measurements of radioactive standard CBSS 2 were made. The results of both calibrations were compared with the data from the standard certificate. Satisfactory agreement was achieved. Mean percentage difference between results from ISOCS calibration compared to reference values is 6% for all isotopes activities in CBSS 2 standard. The set of collimators was used to develop efficiency calibration for in situ measurements of the soil surface. Test measurements were carried out at the area of the Institute of Nuclear Physics Polish Academy of Sciences in Krakow, Poland (IFJ PAN). Two measurement methods were compared: in situ and laboratory gamma spectroscopy. The obtained average results (from all 10 measuring points) are consistent within the range of measurement uncertainty. PMID- 29029765 TI - Radioactive and stable cesium isotope distributions and dynamics in Japanese cedar forests. AB - Dynamics of the Fukushima-derived radiocesium and distribution of the natural stable isotope 133Cs in Japanese cedar (Cryptomeria japonica D. Don) forest ecosystems were studied during 2014-2016. For the experimental site in Yamakiya, Fukushima Prefecture, we present the redistribution of radiocesium among ecosystem compartments during the entire observation period, while the results obtained at another two experimental site were used to demonstrate similarity of the main trends in the Japanese forest ecosystems. Our observations at the Yamakiya site revealed significant redistribution of radiocesium between the ecosystem compartments during 2014-2016. During this same period radionuclide inventories in the aboveground tree biomass were relatively stable, however, radiocesium in forest litter decreased from 20 +/- 11% of the total deposition in 2014 to 4.6 +/- 2.7% in 2016. Radiocesium in the soil profile accumulated in the 5-cm topsoil layers. In 2016, more than 80% of the total radionuclide deposition in the ecosystem resided in the 5-cm topsoil layer. The radiocesium distribution between the aboveground biomass compartments at Yamakiya during 2014-2016 was gradually approaching a quasi-equilibrium distribution with stable cesium. Strong correlations of radioactive and stable cesium isotope concentrations in all compartments of the ecosystem have not been reached yet. However, in some compartments the correlation is already strong. An increase of radiocesium concentrations in young foliage in 2016, compared to 2015, and an increase in 2015-2016 of the 137Cs/133Cs concentration ratio in the biomass compartments with strong correlations indicate an increase in root uptake of radiocesium from the soil profile. Mass balance of the radionuclide inventories, and accounting for radiocesium fluxes in litterfall, throughfall and stemflow, enabled a rough estimate of the annual radiocesium root uptake flux as 2 +/- 1% of the total inventory in the ecosystem. PMID- 29029767 TI - PET/CT and PET/MRI in head and neck malignancy. AB - Combined 2-[18F]-fluoro-2-deoxy-d-glucose (FDG) positron-emission tomography (PET)/computed tomography (CT) has an established role in the staging of difficult cases of head and neck (HN) squamous cell carcinoma (SCC), looking for an unknown primary, assessing response post-chemotherapy at 3-6 months, and differentiating relapse from treatment effects in patients suspected to have tumour recurrence. The PET NECK trial, comparing PET/CT surveillance versus neck dissection in advanced head and neck cancer showed survival was similar among patients who underwent PET/CT-guided surveillance and those who underwent planned neck dissection, but surveillance was more cost-effective. There is growing interest in the use of hypoxia PET tracers, especially in targeting radiotherapy, where the radiotherapy dose can be boosted in regions of hypoxia; the use of 68Ga peptide tracers in neuroendocrine malignancy and also in the growing field of combined PET/magnetic resonance imaging (MRI). PET/MRI has the advantage of increased anatomical detail and radiation dose reduction combined with the molecular and metabolic data from PET, although PET/CT has the advantage in better sensitivity for imaging lung metastases. Thus far, there is good agreement between PET/CT and PET/MRI with high correlation between semi-quantitative measurements in primary, nodal, osseous, and soft-tissue lesions imaging. PET/MRI may indeed provide greater accuracy than the currently available imaging procedures in the staging and later treatment response evaluation in HNSCC. PMID- 29029766 TI - Diagnostic performance of gadofosveset-enhanced axillary MRI for nodal (re)staging in breast cancer patients: results of a validation study. AB - AIM: To evaluate diagnostic performance of gadofosveset (GDF)-enhanced magnetic resonance imaging (MRI) in addition to T2-weighted (T2W) MRI for nodal (re)staging in newly diagnosed breast cancer patients. MATERIALS AND METHODS: Ninety patients underwent axillary T2W- and GDF-MRI. Two radiologists independently scored each lymph node; first on T2W-MRI, subsequently adjusting their score on GDF-MRI. Diagnostic performance parameters were calculated on node by-node and patient-by-patient validation with histopathology as the reference standard. Furthermore, learning curve analysis for reading GDF-MRI was performed. RESULTS: In patient-by-patient validation, overall reader performances for T2W- and GDF-MRI were similar with area under the receiver operating characteristic curves (AUC) of 0.75 and 0.77 (p=0.731) for reader 1 and 0.79 and 0.72 (p=0.156) for reader 2. For node-by-node validation, AUC values of T2W- and GDF-MRI were 0.76 and 0.82 (p=0.018) and 0.77 and 0.77 (p=0.998) for reader 1 and 2. The AUC for reader 1 was 0.71 for first one-third of nodes evaluated, improving to 0.80 and 0.95 for the next and last one-third, respectively. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) improved from 38%, 89%, 56%, and 79% to 60%, 93%, 64%, and 92%. The AUC of reader 2 improved from 0.69 to 0.79. CONCLUSION: The present study confirmed that GDF-MRI, in addition to T2W-MRI, has potential as a non-invasive method for nodal (re)staging in breast cancer. PMID- 29029769 TI - Role of imaging techniques in the diagnosis and follow-up of muscle-invasive bladder carcinoma. AB - INTRODUCTION: Muscle-invasive bladder malignancies represent 20-30% of all bladder cancers. These patients require imaging tests to determine the regional and distant staging. OBJECTIVE: To describe the role of various imaging tests in the diagnosis, staging and follow-up of muscle-invasive bladder cancer. To assess recent developments in radiology aimed at improving the sensitivity and specificity of local staging and treatment response. ACQUISITION OF EVIDENCE: We conducted an updated literature review. SYNTHESIS OF THE EVIDENCE: Computed tomography and magnetic resonance imaging (MRI) are the tests of choice for performing proper staging prior to surgery. Computed tomography urography is currently the most widely used technique, although it has limitations in local staging. Ultrasonography still has a limited role. Recent developments in MRI have improved its capacity for local staging. MRI has been suggested as the test of choice for the follow-up, with promising results in assessing treatment response. Positron emission tomography could improve the detection of adenopathies and extrapelvic metastatic disease. CONCLUSIONS: Imaging tests are essential for the diagnosis, staging and follow-up of muscle-invasive bladder cancer. Recent technical developments represent important improvements in local staging and have opened the possibility of assessing treatment response. PMID- 29029770 TI - Why women are not small men. PMID- 29029768 TI - Value of 100 kVp scan with sinogram-affirmed iterative reconstruction algorithm on a single-source CT system during whole-body CT for radiation and contrast medium dose reduction: an intra-individual feasibility study. AB - AIM: To perform an intra-individual investigation of the usefulness of a contrast medium (CM) and radiation dose-reduction protocol using single-source computed tomography (CT) combined with 100 kVp and sinogram-affirmed iterative reconstruction (SAFIRE) for whole-body CT (WBCT; chest-abdomen-pelvis CT) in oncology patients. MATERIALS AND METHODS: Forty-three oncology patients who had undergone WBCT under both 120 and 100 kVp protocols at different time points (mean interscan intervals: 98 days) were included retrospectively. The CM doses for the 120 and 100 kVp protocols were 600 and 480 mg iodine/kg, respectively; 120 kVp images were reconstructed with filtered back-projection (FBP), whereas 100 kVp images were reconstructed with FBP (100 kVp-F) and the SAFIRE (100 kVp S). The size-specific dose estimate (SSDE), iodine load and image quality of each protocol were compared. RESULTS: The SSDE and iodine load of 100 kVp protocol were 34% and 21%, respectively, lower than of 120 kVp protocol (SSDE: 10.6+/-1.1 versus 16.1+/-1.8 mGy; iodine load: 24.8+/-4versus 31.5+/-5.5 g iodine, p<0.01). Contrast enhancement, objective image noise, contrast-to-noise-ratio, and visual score of 100 kVp-S were similar to or better than of 120 kVp protocol. CONCLUSION: Compared with the 120 kVp protocol, the combined use of 100 kVp and SAFIRE in WBCT for oncology assessment with an SSCT facilitated substantial reduction in the CM and radiation dose while maintaining image quality. PMID- 29029771 TI - [Therapeutic itinerary and radiological features of positive microscopy tuberculosis patients at Centre Hospitalier National Universitaire de Fann (CHNUF), Dakar]. AB - INTRODUCTION: The long diagnostic delay is responsible for the extension of radiological lesions and spread of TB in the community. These radiological lesions can leave significant scars responsible for respiratory disability. OBJECTIVE: The aim of the study is to characterize radiologic features according to tuberculosis diagnostic delay. METHODS: We conducted a prospective cross sectional study, about 66 patients with positive sputum. RESULTS: The average diagnostic delay was 16 (+/-15) weeks; whether 22 (+/-14.1) weeks in the female gender versus 14.6 (+/-14.3) weeks in the male gender (P=0.10). The first care use was respectively health centers (62.1%), drugstores (51.9%), and traditional medicine (28.7%). Only 27.2% of patients used the marabouts care. Bilateral radiographic abnormalities in bivariate analysis were associated with consultation at the health center (66.7% versus 33.3%; P<0.031), as is the extension of the lesions (70.2% versus 29.8% RP=1.66 [1.05 to 2.91]; P<0.03). Lake of knowledge of the symptoms of TB was associated with the use of marabouts care (12.5% versus 87.5; PR=0.35 [0.11 to 1.08], P<0.04). CONCLUSION: These results should prompt consideration in an emergency, appropriate control interventions, advocacy, patient information and medical personnel on the reality of tuberculosis to prevent its spread often causing respiratory disability with radological effects. PMID- 29029773 TI - Post-resuscitation myocardial injury: MRI and MDCT patterns. PMID- 29029772 TI - Inhibition of Mammalian Target of Rapamycin Signaling with Rapamycin Prevents Trauma-Induced Heterotopic Ossification. AB - A pressing clinical need exists for 63% to 65% of combat-wounded service members and 11% to 20% of civilians who develop heterotopic ossification (HO) after blast related extremity injury and traumatic injuries, respectively. The mammalian target of rapamycin pathway is a central cellular sensor of injury. We evaluated the prophylactic effects of rapamycin, a selective inhibitor of mammalian target of rapamycin signaling, on HO formation in a rat model of blast-related, polytraumatic extremity injury. Rapamycin was administered intraperitoneally daily for 14 days at 0.5 mg/kg or 2.5 mg/kg. Ectopic bone formation was monitored by micro-computed tomography and confirmed by histologic examination. Connective tissue progenitor cells, platelet-derived growth factor receptor-alpha-positive cells, and alpha-smooth muscle actin-positive blood vessels were assayed at postoperative day 7 by colony formation and immunofluorescence. Early gene expression changes were determined by low-density microarray. There was significant attenuation of 1) total new bone and soft tissue ectopic bone with 0.5 mg/kg (38.5% and 14.7%) and 2.5 mg/kg rapamycin (90.3% and 82.9%), respectively, 2) connective tissue progenitor cells, 3) platelet-derived growth factor receptor-alpha-positive cells, 4) alpha-smooth muscle actin-positive blood vessels, and 5) of key extracellular matrix remodeling (CD44, Col1a1, integrins), osteogenesis (Sp7, Runx2, Bmp2), inflammation (Cxcl5, 10, IL6, Ccl2), and angiogenesis (Angpt2) genes. No wound healing complications were noted. Our data demonstrate the efficacy of rapamycin in inhibiting blast trauma-induced HO by a multipronged mechanism. PMID- 29029774 TI - Immediate coronary angiography in survivors of out-of-hospital cardiac arrest without obvious extracardiac cause: Who benefits? AB - BACKGROUND: Immediate coronary angiography (iCA) and primary percutaneous coronary angioplasty (pPCI) in patients successfully resuscitated after out-of hospital cardiac arrest (OHCA) of suspected cardiac cause is controversial. Our aims were to assess the results of iCA, the prognostic impact of pPCI after OHCA, and to identify subgroups most likely to benefit from this strategy. METHODS: In this single-centre retrospective study, patients aged >=18 years with sustained return of spontaneous circulation after OHCA and no evidence of a non-cardiac cause underwent routine iCA at admission, with pPCI if indicated. Results of iCA, and factors associated with in-hospital survival were analysed. RESULTS: Between 2006 and 2013, 160 survivors from OHCA presumed of cardiac origin were included (median age, 60 years; 85% males). iCA showed significant coronary-artery lesions in 75% of patients, and acute occlusion or unstable lesion in only 41%. pPCI was performed in 34% of patients and was not associated with survival by univariate or multivariate analysis (P=0.67). ST-segment elevation predicted acute coronary occlusion in 40%. An initial shockable rhythm was associated with higher in hospital survival (52% vs. 19%; P<0.001). After initial defibrillation, the first rhythm recorded by 12-lead electrocardiography was highly associated with prognosis: secondary asystole had a very low survival rate (5%, 1/21) despite PCI in 43% of patients, compared to sustained ventricular tachycardia/fibrillation (42%, 15/36) and supraventricular rhythm (71%, 50/70) (P<0.001). CONCLUSIONS: In our experience, the prevalence of acute coronary occlusion or unstable lesion immediately after OHCA of likely cardiac cause is only 41%. Immediate CA in OHCA survivors, with pPCI if indicated, should be restricted to highly selected patients. PMID- 29029775 TI - [Management of NSTEMI in a hospital without interventional cardiology and without use of GRACE score: Does the clinician appreciation match the GRACE score calculated retrospectively for the coronarography delay?] AB - PURPOSE: The management of non-ST segment elevation acute coronary syndromes (NSTEACS) remains an issue for mobidity, mortality, and an economic stake. The first aim of the study was to evaluate the additional value of the GRACE score for the compliance with the recommended times to coronary angiography in an hospital without interventional cardiology. We also analysed the in-hospital and 6-month mortality and the predictive factors of compliance for the coronarography delays. METHODS: Retrospective monocenter cross-sectional study including consecutive patients with chest pain suggestive of a NSTEACS during 1 year. Data of the delay to coronarography were collected and GRACE score was calculated a posteriori. RESULTS: The time to perform coronary angiography was non-compliant in 49% of cases (27 patients out of 55). The calculation of the GRACE score would have allowed correcting the delay for two patients of our cohort. Clinical appreciation, troponin elevation, ECG modifications were associated with the delay compliance. Age <75 years predisposed to recommended delays. Renal failure and history of coronaropathy were significantly associated with non compliant delays. A non-compliant delay was significantly associated with higher mortality. CONCLUSION: In our experience, the knowledge of the GRACE score had little impact on the timing of coronary angiography. However, as a predictor of mid and long term mortality, GRACE score remains SCA ST+ useful to intensify surveillance of high-risk patients. PMID- 29029776 TI - Accelerated idioventricular rhythm requiring catheter ablation in a child: The dark side of a benign arrhythmia. AB - A 12 year-old boy, with no history of cardiac disease, was referred to our department for evaluation of an incessant accelerated idioventricular rhythm (AIVR) complicated with severe left ventricular (LV) dysfunction and cardiogenic shock. Extensive diagnostic work-up failed to reveal any structural heart disease. During electrophysiological study, AIVR originated from the right ventricular endocardial anterior wall and was successfully ablated using remote magnetic navigation. LV function showed complete recovery four weeks after the procedure. This case highlights a life-threatening evolution of an arrhythmia generally presented as a benign entity in children. PMID- 29029777 TI - [Management of high-risk pulmonary embolism with pulmonary artery trunk mobile thrombus]. AB - The presence of a right intraventricular thrombus is a marker of severity of pulmonary embolism (PE), and is associated with high mortality. We report the case of a young patient with a PE postoperative of patellar tendon surgery. The cardiac echocardiography at its admission revealed a voluminous mobile thrombus of 1.7cm diameter located on the pulmonary trunk. Systemic thrombolysis was performed because of respiratory deterioration allowing a rapid disappearance of the thrombus and recovery. Our case emphasizes the value of a complete ultrasound analysis centered on the pulmonary trunk in the case of intermediate-risk PE. No recommendation exists on the management of these right ventricular thrombi, thrombolysis appearing to be the first-line treatment. PMID- 29029778 TI - Discussion of: "Redefining the abdominal seatbelt sign: Enhanced CT imaging metrics improve injury prediction". PMID- 29029779 TI - Redefining the abdominal seatbelt sign: Enhanced CT imaging metrics improve injury prediction. AB - INTRODUCTION: The abdominal seatbelt sign (ASBS) has an established association with abdominal injury, yet its definition remains ill-defined. We hypothesize specific imaging characteristics associated with the ASBS such as location above the pelvic brim and depth of abdominal wall contusion would better predict underlying injury and need for operative intervention. METHODS: We performed a retrospective chart review of subjects suffering from restrained motor vehicle collisions (MVC) evaluated at a level one trauma facility from 2010 to 2015. CT imaging was reviewed for the presence of a transverse abdominal wall contusion consistent with lap belt use. Contusion location was determined in relation to the anterior superior iliac spine (ASIS). Abdominal wall thickness as well as contusion depth were measured at the contusion level and an abdominal seatbelt sign depth index (ASBSI) was calculated. RESULTS: Sample size for the cohort was 551 subjects. Operative need was 19.73% in those with ASBS on CT (CT ASBS) above the ASIS and 4.05% (p-value < 0.01) in those with only clinical evidence of ASBS (CL ASBS). CT ASBS above the ASIS was associated with higher incidence of intra abdominal injuries (31.97% vs 16.45%; p = 0.01) and a higher rate of abdominal operations (19.73% vs. 7.59%; p < 0.01) compared to below the ASIS. In contrast, CT ASBS below the ASIS was associated with a higher incidence of pelvic fractures (17.72% vs. 8.16%; p = 0.01) with fractures being an independent risk factor for abdominal injury requiring intervention. Logistic regression analyses and receiver-operator characteristic curves demonstrated ASBSI was significantly associated with abdominal injury requiring operative intervention. CONCLUSION: Characteristics of abdominal wall injury on imaging such as location and contusion depth (ASBSI) are better predictors of abdominal operative need than standard clinical measures. This analysis substantiates a novel diagnostic tool which may have the potential to facilitate clinical diagnosis and management decisions in patients with abdominal seatbelt sign. PMID- 29029780 TI - Risk factors for surgical site infection after stoma closure comparison between pursestring wound closure and conventional linear wound closure: Propensity score matching analysis. AB - PURPOSE: Stoma closure has been associated with a high rate of surgical site infection (SSI) and the optimal skin closure method is still controversial. The aim of this study was to compare the short-term and long-term outcomes between the conventional linear closure (CC) and the persestring closure (PC) using propensity score matching analysis. METHODS: We analysed the data of 360 patients who underwent stoma closure with CC or PC between January 2000 and December 2014. The propensity score was calculated from age, gender, body mass index, primary disease, type of stoma, diabetes mellitus, history of smoking, steroid use, the American Society of Anesthesiologists score, Prognostic Nutritional Index and modified Glasgow Prognostic Score. RESULTS: There was no difference in operative variables between the two groups. The CC group and the PC group were comparable with regards to overall SSI (25.0 vs. 7.8%; P = 0.007), superficial SSI (21.9 vs. 4.7%; P = 0.003). Significant risk factor for SSI was conventional linear closure (OR, 4.14; 95% CI, 1.448-13.91). CONCLUSION: Our study suggests that a pursestring stoma closure leads to less SSI. PMID- 29029781 TI - Discussion of: "Returning from the acidotic abyss: Mortality in trauma patients with a pH < 7.0". PMID- 29029782 TI - Discussion of: "A nationwide evaluation of robotic ventral hernia surgery". PMID- 29029783 TI - Follow-up trends after Emergency Department discharge for acutely symptomatic hernias. AB - BACKGROUND: Patients frequently present to the Emergency Department (ED) with symptomatic hernias. This study evaluated the outcomes of patients presenting with symptomatic hernias without indication for immediate operation who are discharged for elective repair. METHODS: A three-year retrospective analysis of patients discharged from the ED with a symptomatic hernia was performed at a university affiliated county referral center. The incidences of ED revisits, clinic follow up and repairs occurring in the elective versus emergency setting were assessed. RESULTS: There were 111 patients evaluated and discharged from the ED with a symptomatic hernia where 21% (23) were recurrent and 27% (30) were chronically incarcerated. Of the 111 patients only 23% (26) followed-up in clinic and only 18% (20) underwent hernia repair. However, 25% (28) of all patients required a return visit to the ED and 45% (9) of herniorrhaphies were emergent. CONCLUSIONS: Discharge and failure of follow-up after an ED visit for a symptomatic hernia leaves many patients at risk for recurrent ED visits and emergent surgery. PMID- 29029786 TI - Cell calcium special issue: Preface. PMID- 29029785 TI - A single dose of cocaine potentiates glutamatergic synaptic transmission onto locus coeruleus neurons. AB - The brainstem locus coeruleus (LC), the primary norepinephrinergic (NE) nucleus in the brain, has been implicated in the abuse of drugs such as opioids. However, whether and how the LC-NE system is involved in cocaine addiction remains elusive. Here, we demonstrated cocaine-evoked synaptic plasticity of glutamatergic transmission onto LC neurons as one of the earliest traces occurring after a single injection of cocaine. Twenty-four hours after mice were injected intraperitoneally with cocaine, the evoked alpha-amino-3-hydroxy-5 methyl-4-isoxazolepropionic acid receptor (AMPAR) mediated synaptic transmission onto LC neurons were strongly potentiated without major effect on N-methyl-d aspartate receptor (NMDAR) mediated synaptic transmission. Compared with saline pretreated mice, AMPAR-mediated excitatory postsynaptic currents (EPSCs) of cocaine-pretreated mice showed a marked inward rectification, demonstrating the insertion of GluR2-lacking AMPARs to plasma membrane. In addition, the single injection of cocaine did not affect presynaptic glutamate release probability measured by paired pulse ratio. Furthermore, we found that the cocaine-induced potentiation of AMPAR EPSCs could be blocked by prazosin, an inhibitor of alpha1 adrenoreceptor (AR), indicating that cocaine increases AMPAR transmission via alpha1-ARs. These results reveal that LC-NE serves as an initial target of drug intake. PMID- 29029787 TI - Early testosterone replacement attenuates intracellular calcium dyshomeostasis in the heart of testosterone-deprived male rats. AB - BACKGROUND: Testosterone deficiency in elderly men increases the risk of cardiovascular disease. In bilateral orchiectomized (ORX) animals, impaired cardiac Ca2+ regulation was observed, and this impairment could be improved by testosterone replacement, indicating the important role of testosterone in cardiac Ca2+ regulation. However, the temporal changes of Ca2+ dyshomeostasis in testosterone-deprived conditions are unclear. Moreover, the effects of early vs. late testosterone replacement are unknown. We hypothesized that the longer the deprivation of testosterone, the greater the impairment of cardiac Ca2+ homeostasis, and that early testosterone replacement can effectively reduce this adverse effect. METHODS: Male Wistar rats were randomly divided into twelve groups, four sets of three. The first set were ORX for 2, 4 and 8 weeks, the second set were sham-operated groups of the same periods, the third set were ORX for 8 weeks coupled with a subcutaneous injection of vehicle (control), testosterone during weeks 1-8 (early replacement) or testosterone during weeks 5 8 (late replacement), and finally the 12-week sham-operated, ORX and ORX treated with testosterone groups. Cardiac Ca2+ transients (n=4-5/group), L-type calcium current (ICa-L) (n=4/group), Ca2+ regulatory proteins (n=6/group) and cardiac function (n=5/group) were determined. RESULTS: In the ORX rats, impaired cardiac Ca2+ transients and reduced ICa-L were observed initially 4 weeks after ORX as shown by decreased Ca2+ transient amplitude, rising rate and maximum and average decay rates. No alteration of Ca2+ regulatory proteins such as the L-type Ca2+ channels, ryanodine receptor type 2, Na+-Ca2+ exchangers and SERCA2a were observed. Early testosterone replacement markedly improved cardiac Ca2+ transients, whereas late testosterone replacement did not. The cardiac contractility was also improved after early testosterone replacement. CONCLUSIONS: Impaired cardiac Ca2+ homeostasis is time-dependent after testosterone deprivation. Early testosterone replacement improves cardiac Ca2+ transient regulation and contractility, suggesting the necessity of early intervention in conditions of testosterone-deprivation. PMID- 29029784 TI - Regulation of insulin exocytosis by calcium-dependent protein kinase C in beta cells. AB - The control of insulin release from pancreatic beta cells helps ensure proper blood glucose level, which is critical for human health. Protein kinase C has been shown to be one key control mechanism for this process. After glucose stimulation, calcium influx into beta cells triggers exocytosis of insulin containing dense-core granules and activates protein kinase C via calcium dependent phospholipase C-mediated generation of diacylglycerol. Activated protein kinase C potentiates insulin release by enhancing the calcium sensitivity of exocytosis, likely by affecting two main pathways that could be linked: (1) the reorganization of the cortical actin network, and (2) the direct phosphorylation of critical exocytotic proteins such as munc18, SNAP25, and synaptotagmin. Here, we review what is currently known about the molecular mechanisms of protein kinase C action on each of these pathways and how these effects relate to the control of insulin release by exocytosis. We identify remaining challenges in the field and suggest how these challenges might be addressed to advance our understanding of the regulation of insulin release in health and disease. PMID- 29029788 TI - Differential Ca2+ mobilization and mast cell degranulation by FcepsilonRI- and GPCR-mediated signaling. AB - Mast cells play a primary role in allergic diseases. During an allergic reaction, mast cell activation is initiated by cross-linking IgE-FcepsilonRI complex by multivalent antigen resulting in degranulation. Additionally, G protein-coupled receptors also induce degranulation upon activation. However, the spatio-temporal relationship between Ca2+ mobilization and mast cell degranulation is not well understood. We investigated the relationship between oscillations in Ca2+ level and mast cell degranulation upon stimulation in rat RBL-2H3 cells. Nile red and Fluo-4 were used as probes for monitoring histamine and intracellular Ca2+ levels, respectively. Histamine release and Ca2+ oscillations in real-time were monitored using total internal reflection fluorescence microscopy (TIRFM). Mast cell degranulation followed immediately after FcepsilonRI and GPCR-mediated Ca2+ increase. FcepsilonRI-induced Ca2+ increase was higher and more sustained than that induced by GPCRs. However, no significant difference in mast cell degranulation rates was observed. Although intracellular Ca2+ release was both necessary and sufficient for mast cell degranulation, extracellular Ca2+ influx enhanced the process. Furthermore, cytosolic Ca2+ levels and mast cell degranulation were significantly decreased by downregulation of store-operated Ca2+ entry (SOCE) via Orai1 knockdown, 2-aminoethyl diphenylborinate (2-APB) or tubastatin A (TSA) treatment. Collectively, this study has demonstrated the role of Ca2+ signaling in regulating histamine degranulation. PMID- 29029789 TI - Vesicle fusion and fission in plants and yeast. AB - Measurements of the membrane capacitance on animal cells has provided an excellent technique for monitoring of exo- and endocytotic activity in intact living cells. Here we review recent data in which the same technique was applied to plant cells and cells of the budding yeast Saccharomyces cerevisiae. The data show that unitary exo- and endocytotic events can also be measured with the same technique after removing the cell wall from these cells. The resulting protoplasts execute the same type of transient and permanent fusion/fission that is known from animal cells. Also the size of the vesicles, which are fusing or budding, are of the same order of magnitude as those recorded in animal cells. Together these data support the view of an evolutionary conserved mechanism for unitary exo- and endocytosis events in eukaryotes. The successful recordings of exo- and endocytotic activity in Saccharomyces cerevisiae by capacitance measurements now pave the way for correlating the abundant information on the molecular machinery of exo- and endocytosis in this model organism with distinct functional properties. PMID- 29029790 TI - Dynamics of surface neurotransmitter receptors and transporters in glial cells: Single molecule insights. AB - The surface dynamics of neurotransmitter receptors and transporters, as well as ion channels, has been well-documented in neurons, revealing complex molecular behaviour and key physiological functions. However, our understanding of the membrane trafficking and dynamics of the signalling molecules located at the plasma membrane of glial cells is still in its infancy. Yet, recent breakthroughs in the field of glial cells have been obtained using combination of superresolution microscopy, single molecule imaging, and electrophysiological recordings. Here, we review our current knowledge on the surface dynamics of neurotransmitter receptors, transporters and ion channels, in glial cells. It has emerged that the brain cell network activity, synaptic activity, and calcium signalling, regulate the surface distribution and dynamics of these molecules. Remarkably, the dynamics of a given neurotransmitter receptor/transporter at the plasma membrane of a glial cell or neuron is unique, revealing the existence of cell-type specific regulatory pathways. Thus, investigating the dynamics of signalling proteins at the surface of glial cells will likely shed new light on our understanding of glial cell physiology and pathology. PMID- 29029791 TI - In search for globally disordered apo-parvalbumins: Case of parvalbumin beta-1 from coho salmon. AB - Parvalbumin (PA) is a classical EF-hand calcium-binding protein of muscle, neuronal, and other tissues, and a major fish allergen. Although certain apo-PAs lack tertiary structure, functional implications of that feature and its structural prerequisites remain unclear. In a search for unstable PAs, we probed conformational stability of parvalbumin beta-1 from coho salmon (csPA), a cold water fish species, using circular dichroism, scanning calorimetry, hydrophobic probe fluorescence, limited proteolysis, chemical crosslinking and dynamic light scattering techniques. Apo-csPA is shown to be mainly monomeric protein with markedly disorganized secondary structure and lack of rigid tertiary structure. Examination of per-residue propensity for intrinsic disorder in the PA groups with either folded or unfolded apo-form using the average PONDR(r) VSL2P profiles revealed that the N-terminal region that includes alpha-helix A, AB-loop and N terminal half of alpha-helix B is predicted to be less ordered in PAs with disordered apo-state. Application of the structural criteria developed for discrimination of disordered PAs indicate that the latter comprise about 16-19% of all PAs. We show that structural instability of apo-beta-PA serves as a hallmark of elevated calcium affinity of the protein. Therefore, the successful predictions of unstable apo-PAs might facilitate search for PAs with maximal calcium affinity and possibly serving as calcium sensors. PMID- 29029792 TI - Analyzing optical imaging of Ca2+ signals via TIRF microscopy: The limits on resolution due to chemical rates and depth of the channels. AB - High resolution total internal reflection (TIRF) microscopy (TIRFM) together with detailed computational modeling provides a powerful approach towards the understanding of a wide range of Ca2+ signals mediated by the ubiquitous inositol 1,4,5-trisphosphate (IP3) receptor (IP3R) channel. Exploiting this fruitful collaboration further requires close agreement between the models and observations. However, elementary Ca2+ release events, puffs, imaged through TIRFM do not show the rapid single-channel openings and closings during and between puffs as are present in simulated puffs using data-driven single channel models. TIRFM also shows a rapid equilibration of 10ms after a channel opens or closes which is not achievable in simulation using standard Ca2+ diffusion coefficients and reaction rates between indicator dye and Ca2+. Furthermore, TIRFM imaging cannot decipher the depth of the channel with respect to the microscope, which will affect the change in fluorescence that the microscope detects, thereby affecting its sensitivity to fast single-channel activity. Using the widely used Ca2+ diffusion coefficients and reaction rates, our simulations show equilibration rates that are eight times slower than TIRFM imaging. We show that to get equilibrium rates consistent with observed values, the diffusion coefficients and reaction rates have to be significantly higher than the values reported in the literature, and predict the channel depth to be 200-250nm. Finally, we show that with the addition of noise, short events due to 1-2ms opening and closing of channels that are observed in computational models can be missed in TIRFM. PMID- 29029793 TI - High extracellular Ca2+ enhances the adipocyte accumulation of bone marrow stromal cells through a decrease in cAMP. AB - Bone marrow stromal cells (BMSCs) are common progenitors of both adipocytes and osteoblasts. We recently suggested that increased [Ca2+]o caused by bone resorption might accelerate adipocyte accumulation in response to treatment with both insulin and dexamethasone. In this study, we investigated the mechanism by which high [Ca2+]o enhances adipocyte accumulation. We used primary mouse BMSCs and evaluated the levels of adipocyte accumulation by measuring Oil Red O staining. CaSR agonists (both Ca2+ and Sr2+) enhanced the accumulation of adipocytes among BMSCs in response to treatment with both insulin and dexamethasone. We showed that high [Ca2+]o decreases the concentration of cAMP using ELISA. Real-time RT-PCR revealed that increasing the intracellular concentration of cAMP (both chemical inducer (1MUM forskolin and 200nM IBMX) and a cAMP analog (10MUM pCPT-cAMP)) suppressed the expression of PPARgamma and C/EBPalpha. In addition, forskolin, IBMX, and pCPT-cAMP inhibited the enhancement in adipocyte accumulation under high [Ca2+]o in BMSCs. However, this inhibited effect was not observed in BMSCs that were cultured in a basal concentration of [Ca2+]o. We next observed that the accumulation of adipocytes in the of bone marrow of middle-aged mice (25-40 weeks old) is higher than that of young mice (6 weeks old) based on micro CT. ELISA results revealed that the concentration of cAMP in the bone marrow mononuclear cells of middle-aged mice is lower than that of young mice. These data suggest that increased [Ca2+]o caused by bone resorption might accelerate adipocyte accumulation through CaSR following a decrease in cAMP. PMID- 29029795 TI - Autonomous health management for PMSM rail vehicles through demagnetization monitoring and prognosis control. AB - Autonomous vehicles are playing an increasingly importance in support of a wide variety of critical events. This paper presents a novel autonomous health management scheme on rail vehicles driven by permanent magnet synchronous motors (PMSMs). Firstly, the PMSMs are modeled based on first principle to deduce the initial profile of pneumatic braking (p-braking) force, then which is utilized for real-time demagnetization monitoring and degradation prognosis through similarity-based theory and generate prognosis-enhanced p-braking force strategy for final optimal control. A case study is conducted to demonstrate the feasibility and benefit of using the real-time prognostics and health management (PHM) information in vehicle 'drive-brake' control automatically. The results show that accurate demagnetization monitoring, degradation prognosis, and real time capability for control optimization can be obtained, which can effectively relieve brake shoe wear. PMID- 29029796 TI - Robust cubature Kalman filter for GNSS/INS with missing observations and colored measurement noise. AB - In order to improve the accuracy of GNSS/INS working in GNSS-denied environment, a robust cubature Kalman filter (RCKF) is developed by considering colored measurement noise and missing observations. First, an improved cubature Kalman filter (CKF) is derived by considering colored measurement noise, where the time differencing approach is applied to yield new observations. Then, after analyzing the disadvantages of existing methods, the measurement augment in processing colored noise is translated into processing the uncertainties of CKF, and new sigma point update framework is utilized to account for the bounded model uncertainties. By reusing the diffused sigma points and approximation residual in the prediction stage of CKF, the RCKF is developed and its error performance is analyzed theoretically. Results of numerical experiment and field test reveal that RCKF is more robust than CKF and extended Kalman filter (EKF), and compared with EKF, the heading error of land vehicle is reduced by about 72.4%. PMID- 29029794 TI - Rho-kinase inhibition reverses impaired Ca2+ handling and associated left ventricular dysfunction in pressure overload-induced cardiac hypertrophy. AB - Recent studies have implicated a relationship between RhoA/ROCK activity and defective Ca2+ homeostasis in hypertrophic hearts. This study investigated molecular mechanism underlying ROCK inhibition-mediated cardioprotection against pressure overload-induced cardiac hypertrophy, with a focus on Ca2+ homeostasis. Cardiac hypertrophy model was established by performing transverse aortic constriction (TAC) in 8-week-old male rats. Groups were assigned as SHAM, TAC and TAC+Fas (rats undergoing TAC and treated with fasudil). Rats in the TAC+Fas group were administered fasudil (5mg/kg/day), and rats in the SHAM and TAC groups were treated with vehicle for 10 weeks. Electrophysiological recordings were obtained from isolated left ventricular myocytes and expression levels of proteins were determined using western blotting. Rats in the TAC group showed remarkable cardiac hypertrophy, and fasudil treatment significantly reversed this alteration. TAC+Fas myocytes showed significant improvement in reduced contractility and Ca2+ transients. Moreover, these myocytes showed restoration of slow relaxation rate and Ca2+ reuptake. Although L-type Ca2+ currents did not change in TAC group, there was a significant reduction in the triggered Ca2+ transients which was reversed either by long-term fasudil treatment or incubation of TAC myocytes with fasudil. The hearts of rats in the TAC group showed a significant decrease in ROCK1, ROCK2, RyR2 protein levels and p-PLBS16/T17/SERCA2 ratio and increase in RhoA expression and MLC phosphorylation. However, fasudil treatment largely reversed TAC-induced alterations in protein expression. Thus, our findings indicate that upregulation of the RhoA/ROCK pathway is significantly associated with cardiac hypertrophy-related Ca2+ dysregulation and suggest that ROCK inhibition prevents hypertrophic heart failure. PMID- 29029798 TI - Effect of intravenous ondansetron on QTc interval in children with gastroenteritis. AB - BACKGROUND: The potential for ondansetron to cause QT prolongation and fatal dysrhythmia is well-reported, including a 2011 FDA report on the topic. Few clinical trials evaluating this phenomenon in the ED setting exist, and only one is pediatric. OBJECTIVE: We have sought to determine the effect of a standardized dose of intravenous ondansetron on the QTc duration of children under 14years of age treated for gastroenteritis-associated vomiting in a pediatric ED. This study is modeled closely after an FDA "thorough QT study". METHODS: EGCs were obtained before and 15, 30, 45, and 60min after a 0.15mg/kg IV dose of ondansetron given for gastroenteritis-associated vomiting. QT intervals were measured manually with digital calipers, and the QTc interval calculated both by Bazett's (QTcB) and Fridericia's (QTcF) correction. A paired t-test comparing QTc was conducted, and frequency of categorical outcomes of prolongation>30msec, >60 msec, and absolute prolongation >450 msec, >480 msec, and >500msec were evaluated. RESULTS: In a 4 month period, 134 patients were included in the study, 46% were male. The average QTc prior to ondansetron administration was: QTcB 415 msec (95% CI 343-565) and QTcF 373 (95% CI 304-499). The mean difference in QTc after ondansetron was 0.4msec for QTcB (95% CI -35-45msec) and 0.1msec for QTcF (95% CI -40-18msec). CONCLUSION: In these children, 0.15mg/kg of intravenous ondansetron did not cause prolongation of QTcB or QTcF measured 15min after administration, nor at later times. PMID- 29029797 TI - Comparison of IV dexketoprofen trometamol, fentanyl, and paracetamol in the treatment of renal colic in the ED: A randomized controlled trial. AB - OBJECTIVE: In this study, we aimed to compare the analgesic efficacy of intravenous dexketoprofen trometamol, fentanyl, and paracetamol in patients presenting to the emergency department with renal colic. MATERIALS AND METHOD: Data obtained from the emergency departments of Gaziantep University's Hospital for Research and Practice along with two other state hospitals in Gaziantep, Turkey between January 2016 and January 2017 was used for this study. A total of three hundred patients (n=300), who presented to the ER with complaints most common to renal colic whose diagnoses were subsequently confirmed with Computerized Tomography were included in the study. Patients' pain scores were recorded using the Visual Analogue Scale, at admission (immediately before drug administration), then at the 15th, and 30th minutes. SPSS 22.0 software package was used for analysis. p<0.05 was considered significant. RESULTS: At the 15th minute comparison, the efficacies of the three groups of drugs were not superior to one other, but at the 30th minute, dexketoprofen trometamol was statistically more effective than paracetamol and fentanyl. There was no statistically significant difference between fentanyl and paracetamol. The need for additional analgesia in the group receiving dexketoprofen trometamol was found to be lower. Dexketoprofen trometamol was statistically superior to the other two agents in achieving full analgesia at the end of the thirty-minute period. Fentanyl was found to be statistically significant in achieving moderate analgesia. CONCLUSION: As a Non-steroidal antiinflammatory drug dexketoprofen trometamol is superior to paracetamol and fentanyl in achieving analgesia and reducing the need for additional drugs for the treatment of renal colic. PMID- 29029799 TI - Interdependent and independent multidimensional role of tumor microenvironment on hepatocellular carcinoma. AB - The novelty of an effective therapeutic targeting for hepatocellular carcinoma (HCC) is based on improved understanding of each component of tumor microenvironment (TME) and its correspondent interactions at biological and molecular levels. In this context, new expansions for the treatment against TME and its communication with HCC are under exploration. Despite of the fact that blockage of growth factor receptors has become a treatment of choice in late phases of HCC in clinical practice, still a precise targeted treatment should address all the components of TME. Targeting one specific element out of cellular (cancer associated fibroblasts, endothelial cells, hepatic stellate cells, Kupffer cells and lymphocytes) or non-cellular (extracellular matrix, growth factors, inflammatory cytokines, proteolytic enzymes) parts of TME may not be a successful remedy for the disease because of well-designed hindrances of each component and their functional alternativeness. Meanwhile there are some elements of TME like epithelial-mesenchymal transition and CAF, which are considerably important and need thorough investigations. Ascertaining the potential role of these elements, and a single or combinational drug therapy targeting these elements of TME simultaneously, may provide the appreciable considerations to eventually improve in clinical practices and may also minimize the chances of reoccurrence of HCC. PMID- 29029800 TI - Surgical treatment of neuronal-glial tumors of mesial-basal part of temporal lobe: Long term outcome and control of epilepsy in pediatric patients. AB - BACKGROUND: Neuronal-glial tumors (ganglioglioma and dysembryoplastic neuroepithelial tumor) are a frequent cause of focal, drug-resistant and epilepsy in children and young adults, that is amenable for surgical treatment. AIM OF PAPER: Assessment of late outcome of surgical treatment and degree of seizure control, as well as prognostic significance of selected clinical factors. MATERIAL AND METHOD: 52 Pediatric patients presenting with epilepsy, lesion of mesio-basal temporal lobe and histologically verified neuronal-glial tumor treated at our facility since 2000-2011. RESULTS: After the mean follow-up of 2.94 years, satisfactory treatment outcome (Engel classes I and II) was obtained in 92% of the patients (n=48). Poor outcome (Engel class III) was seen in 8% of patients (n=4). New neurological deficits appeared in 28% of the patients (n=20) but in most of them resolved over time. CONCLUSIONS: In patients with drug resistant epilepsy and a lesion of mesial-basal part of temporal lobe suggestive of a glial-neuronal tumor, surgical treatment is strongly recommended, aiming at excision of tumor and elimination of seizures. Histological verification of the lesion is a pre-requisite for optimal treatment planning. In most patients, both treatment goals may be reached. Short duration of epilepsy prior to surgery and young age are favorable prognostic factors. Histological diagnosis of GG, co existence of cortical dysplasia and location of tumor extending beyond mesial basal temporal structures are associated with a higher risk of postoperative complications. These may out-weight expected benefits of surgery. PMID- 29029801 TI - Throwing out the good with the bad: Declining potential donor hearts with left ventricular dysfunction. PMID- 29029803 TI - Introduction to the special issue 'unintended effects of international cooperation'. AB - The 'Evaluation and Program Planning' journal has contributed to the launch of an academic discussion of unintended effects of international cooperation, notably by publishing in 2016 articles by Bamberger, Tarsilla, & Hesse-Biber and by Jabeen. This special issue aims to take up the academic challenges as laid down by those authors, by providing among others a clear typology and applying it, by outlining various methodological options and testing them, and elaborating on suggestions on how to deal with the barriers that prevent unintended effects being taken into account. This special issue makes clear that it is possible to reduce the share of unforeseen effects of international cooperation. Turning the spotlight on unintended effects that can be anticipated, and aiming to make progress on uncovering those that are particularly difficult to detect and debunking those that are exaggerated is the task that lies ahead of us. PMID- 29029802 TI - Early-life environmental exposures interact with genetic susceptibility variants in pediatric patients with eosinophilic esophagitis. AB - BACKGROUND: Although eosinophilic esophagitis (EoE) is associated with certain gene variants, the rapidly increasing incidence of EoE suggests that environmental factors contribute to disease development. OBJECTIVE: We tested for gene-environment interaction between EoE-predisposing polymorphisms (within TSLP, LOC283710/KLF13, CAPN14, CCL26, and TGFB) and implicated early-life factors (antibiotic use in infancy, cesarean delivery, breast-feeding, neonatal intensive care unit [NICU] admission, and absence of pets in the home). METHODS: We conducted a case-control study using hospital-based cases (n = 127) and control subjects representative of the hospital catchment area (n = 121). We computed case-only interaction tests and in secondary analyses evaluated the combined and independent effects of genotype and environmental factors on the risk of EoE. RESULTS: Case-only analyses identified interactions between rs6736278 (CAPN14) and breast-feeding (P = .02) and rs17815905 (LOC283710/KLF13) and NICU admission (P = .02) but not with any of the factors examined. Case-control analyses suggested that disease risk might be modifiable in subjects with certain gene variants. In particular, breast-feeding in those with the susceptibility gene variant at rs6736278 (CAPN14) reduced the risk of EoE (adjusted odds ratio, 0.08; 95% CI, 0.01-0.59). Admission to the NICU in those without the susceptibility gene variant at rs17815905 (LOC283710/KLF13) significantly increased the risk of having disease (adjusted odds ratio, 4.83; 95% CI, 1.49-15.66). CONCLUSIONS: The interplay of gene (CAPN14 and LOC283710/KLF13) and early-life environment factors (breast-feeding and NICU admission) might contribute to EoE susceptibility. PMID- 29029804 TI - A weight-of-evidence approach for the bioaccumulation assessment of triclosan in aquatic species. AB - The bioaccumulation assessment of chemicals is challenging because of various metrics and criteria, multiple lines of evidence and underlying uncertainty in the data. Measured in vivo laboratory and field bioaccumulation data are generally considered preferable; however, quantitative structure-activity relationships (QSARs), mass balance models and in vitro data can also be considered. This case study critically evaluates in vivo, in vitro and in silico data and provides new data for the bioaccumulation assessment of triclosan (TCS). The review focusses on measured fish bioconcentration factors (BCFs) because this is the most commonly used regulatory metric. Reported measured fish BCFs range from about 20 to 8700L/kg-ww spanning a range of possible bioaccumulation assessment outcomes, i.e. from "not bioaccumulative" to "very bioaccumulative". Estimated biotransformation rate constants for fish obtained from in vivo, in vitro and in silico methods show general consensus fostering confidence in the selection of plausible values to confront uncertainty in the measured fish BCF tests. Other measurements (lines of evidence) from various species are also collected and reviewed. The estimated biotransformation rate constants and selected chemical property data are used to parameterize bioaccumulation models for aquatic species. Collectively the available lines of evidence are presented using a weight of evidence approach for assessing the bioaccumulation of TCS in aquatic species. Acceptable quality measured data and model predictions for TCS BCFs and bioaccumulation factors are lower than 2000L/kg. Biomagnification factors are <1 (kg/kg). The general consistency in the acceptable quality data is largely explained by the relatively efficient rates of TCS biotransformation in a range of species including measurements of significant in vitro activity of phase II conjugation reactions. The review demonstrates the value of combining models and measurements and, when necessary, applying multiple lines of evidence for chemical assessment. PMID- 29029805 TI - Glycan diversity in the vomeronasal organ of the Korean roe deer, Capreolus pygargus: A lectin histochemical study. AB - Glycans in the epithelium play an important role in cell-to-cell communication and adhesion. No detailed evaluation of glycoconjugates in the vomeronasal organs (VNO) of the roe deer has been published previously. The aim of this study was to characterize glycan epitopes in the vomeronasal sensory epithelium (VSE) and non sensory epithelium (VNSE) using lectin histochemistry. Glycan epitopes identified by lectin histochemistry were grouped as follows: N-acetylglucosamine (s-WGA, WGA, BSL-II, DSL, LEL, STL), mannose (Con A, LCA, PSA), galactose (RCA120, BSL-I, Jacalin, PNA, ECL), N-acetylgalactosamine (VVA, DBA, SBA, and SJA), fucose (UEA I) and complex type N-glycan (PHA-E and PHA-L) groups. The free border of the VSE was positive for all 21 lectins, and 18 of the lectins (excluding DBA, SJA, and PHA-L) showed weak and/or moderate staining in the receptor cells. The supporting cells were weakly positive for 19 lectins (excluding PNA and SJA). Moreover, 17 lectins (excluding BSL-II, Jacalin, PNA, and SJA) were expressed in the basal cells. In the VNSE of roe deer, the free border showed staining for all 21 lectins examined. The ciliated cells were positive for 16 lectins (excluding BSL II, DSL, PNA, VVA, and SJA). Furthermore, 15 lectins (excluding DSL, LEL, ECL, UEA-I, PHA-E, and PHA-L) were expressed in goblet cells. Twenty lectins (excluding SJA) were expressed in the acini of the vomeronasal glands. Collectively, both VSE and VNSE were rich in N-acetylglucosamine, mannose, galactose, N-acetylgalactosamine, fucose, and complex-type N-glycans, although the different cell types of the VSE and VNSE expressed different glycoconjugates of varying intensities, suggesting that these carbohydrate residues may be involved in odor perception as well as cell-to-cell communication in the VNO. PMID- 29029806 TI - "Mojito's" phytophotodermatitis, the other "lime" disease. PMID- 29029807 TI - Binding and neutralizing anti-cytomegalovirus activities in immune globulin products. AB - Congenital infection as well as infection of immunocompromised individuals by cytomegalovirus (CMV) can be associated with significant morbidity, mortality, and long-term adverse health outcomes. Assessment of anti-viral activity using appropriate assays is essential for ensuring safe and efficacious use of therapeutic CMV immune globulin (IG) products. In this study, we used commercial ELISA kits to compare anti-CMV antibody binding activity and avidity for lots of CMV-specific and normal IG products available in the US market. Additionally, neutralizing activity of IG products was measured against CMV strains (AD169wt131 or TB40E-GFP) in MRC-5 human fibroblasts and ARPE-19 human epithelial cells. Our data revealed that, regardless of the method, anti-CMV activity was higher in CMV IG lots we tested compared with normal IG lots; CMV binding activity was at least 4-fold higher, and neutralizing activity at least 2- and 3-fold higher for epithelial and fibroblast cells, respectively, in CMV IG lots compared with normal IG lots. Furthermore, anti-CMV activity values from all three methods (ELISA, neutralization in MRC-5 cells, and neutralization in ARPE-19 cells) were highly correlated, whereas avidity, although higher in CMV IG lots, did not correlate well with either binding or neutralizing activities. PMID- 29029809 TI - Reply to "Comment on "Ecological niche of Neanderthals from Spy Cave revealed by nitrogen isotopes of individual amino acids in collagen." [J. Hum. Evol. 93 (2016) 82-90]" [J. Hum. Evol. 117 (2018) 53-55]. PMID- 29029808 TI - Potassium Homeostasis in Health and Disease: A Scientific Workshop Cosponsored by the National Kidney Foundation and the American Society of Hypertension. AB - While much emphasis, and some controversy, centers on recommendations for sodium intake, there has been considerably less interest in recommendations for dietary potassium intake, in both the general population and patients with medical conditions, particularly acute and chronic kidney disease. Physiology literature and cohort studies have noted that the relative balance in sodium and potassium intakes is an important determinant of many of the sodium-related outcomes. A noteworthy characteristic of potassium in clinical medicine is the extreme concern shared by many practitioners when confronted by a patient with hyperkalemia. Fear of this often asymptomatic finding limits enthusiasm for recommending potassium intake and often limits the use of renin-angiotensin aldosterone system blockers in patients with heart failure and chronic kidney diseases. New agents for managing hyperkalemia may alter the long-term management of heart failure and the hypertension, proteinuria, and further function loss in chronic kidney diseases. In this jointly sponsored effort between the American Society of Hypertension and the National Kidney Foundation, 3 panels of researchers and practitioners from various disciplines discussed and summarized current understanding of the role of potassium in health and disease, focusing on cardiovascular, nutritional, and kidney considerations associated with both hypo- and hyperkalemia. PMID- 29029810 TI - Characteristics and Changes of Pediatric Therapeutic Trials under the Best Pharmaceuticals for Children Act. PMID- 29029812 TI - Child survival in England: Strengthening governance for health. AB - The United Kingdom, like all European countries, is struggling to strengthen health systems and improve conditions for child health and survival. Child mortality in the UK has failed to improve in line with other countries. Securing optimal conditions for child health requires a healthy society, strong health system, and effective health care. We examine inter-sectoral and intra-sectoral policy and governance for child health and survival in England. Literature reviews and universally applicable clinical scenarios were used to examine child health problems and English policy and governance responses for improving child health through integrating care and strengthening health systems, over the past 15 years. We applied the TAPIC framework for analysing policy governance: transparency, accountability, participation, integrity, and capacity. We identified strengths and weaknesses in child health governance in all the five domains. However there remain policy failures that are not fully explained by the TAPIC framework. Other problems with successfully translating policy to improved health that we identified include policy flux; policies insufficiently supported by delivery mechanisms, measurable targets, and sufficient budgets; and policies with unintended or contradictory aspects. We make recommendations for inter sectoral and intra-sectoral child health governance, policy, and action to improve child health in England with relevant lessons for other countries. PMID- 29029811 TI - How has the management of acute coronary syndrome changed in the Russian Federation during the last 10 years? AB - METHODS: We report trends and patterns of percutaneous cardiovascular interventions (PCI) by region for 2005-2009, with more detailed data on management of myocardial infarctions in 2009-2103, relating them to regional economic development and changes in mortality from myocardial infarction. RESULTS: PCIs per 100,000 population increased from 8.7 in 2005-71.3 in 2013, with considerable regional variation. In 2013 the highest rates were in the wealthiest regions, although not in some remote regions dependent on oil and mineral extraction. Between 2009 and 2013 rates of thrombolysis in those with acute myocardial infarctions potentially eligible for treatment remained broadly similar at about 28% but rates of primary revascularisation with stenting rose rapidly, from 6.5% to 23.7%. In-hospital mortality from myocardial infarction since 2009 has declined most in regions achieving highest rates of primary revascularisation. CONCLUSIONS: The sustained investment in advanced cardiovascular technology has been associated with substantial increases in revascularisation in some but not all regions. However, rates overall remain far behind those in Western Europe. Further research is in progress to understand the reasons for these variations and the barriers to further expansion of services. PMID- 29029813 TI - Innovative Therapy, Monoclonal Antibodies and Beyond. AB - The seventh Edition of "Innovative Therapy, Monoclonal Antibodies and Beyond" Meeting took place in Milan, Italy, on January 27, 2017. The two sessions of the meeting were focused on: 1) Preclinical assays and novel biotargets; and 2) monoclonal antibodies, cell therapies and targeted molecules. Between these two sessions, a lecture entitled "HLA-antigens modulation and response to immune checkpoint inhibitor immunotherapy" was also presented. Despite the impressive successes in cancer immunotherapy in recent years, the response to immune based interventions occurs only in a minority of patients (~20%). Several basic and translational mechanisms of resistance to immune checkpoint blockers (ICBs) were discussed during the meeting: 1. the impact of tumor microenvironment on the activity of immune system; 2. strategies to inhibit the cross-talk between extracellular matrix and myeloid-derived suppressor cells (MDSC) in the preclinical setting; 3. microRNA expression as a biomarker and as a target of therapy in non-small cell lung cancer (NSCLC); 4. the significance of complement activation pathways in response to immune checkpoint inhibitors; 5. the immunosuppressive activity of the microbiota by inducing IL-17 producing cells; and 6. modulation of HLA antigens as possible markers of response to ICB therapy. In order to overcome the deficiency in active anti-tumor T cells, several clinically applicable combination strategies were also discussed: 1. strategies to enhance the anticancer effects of immunogenic cell death inducing chemotherapy; 2. the use of CAR T-cells in solid tumors; 3. the use of combination strategies involving oncolytic viruses and ICBs; 4. combinations of new ICBs with anti-PD-1/CTLA-4 therapy; and 4. combinations of targeted therapies and ICBs in melanoma. Overall, this conference emphasized the many novel strategies that are being investigated to improve the overall patient response to cancer immunotherapy. Optimization of biomarkers to accurately select patients who will respond to immunotherapy, coupled with combination strategies to improve long term patient survival remain critical challenges in the immuno-oncology field. PMID- 29029814 TI - Systematic review of electronic surveillance of infectious diseases with emphasis on antimicrobial resistance surveillance in resource-limited settings. AB - BACKGROUND: Electronic surveillance of infectious diseases involves rapidly collecting, collating, and analyzing vast amounts of data from interrelated multiple databases. Although many developed countries have invested in electronic surveillance for infectious diseases, the system still presents a challenge for resource-limited health care settings. METHODS: We conducted a systematic review by performing a comprehensive literature search on MEDLINE (January 2000-December 2015) to identify studies relevant to electronic surveillance of infectious diseases. Study characteristics and results were extracted and systematically reviewed by 3 infectious disease physicians. RESULTS: A total of 110 studies were included. Most surveillance systems were developed and implemented in high-income countries; less than one-quarter were conducted in low-or middle-income countries. Information technologies can be used to facilitate the process of obtaining laboratory, clinical, and pharmacologic data for the surveillance of infectious diseases, including antimicrobial resistance (AMR) infections. These novel systems require greater resources; however, we found that using electronic surveillance systems could result in shorter times to detect targeted infectious diseases and improvement of data collection. CONCLUSIONS: This study highlights a lack of resources in areas where an effective, rapid surveillance system is most needed. The availability of information technology for the electronic surveillance of infectious diseases, including AMR infections, will facilitate the prevention and containment of such emerging infectious diseases. PMID- 29029815 TI - Induced effect of Ca2+ on dalesconols A and B biosynthesis in the culture of Daldinia eschscholzii via calcium/calmodulin signaling. AB - Dalesconols (dalesconols A and B) were isolated from Daldinia eschscholzii and have remarkable immunosuppressive activity. In this study, the response of fungal growth, intra- and extracellular Ca2+, and dalesconols production after CaCl2 addition were reported for the first time. After supplementation with 5 mM Ca2+ at 24 h, dalesconols production reached 84.33 mg/L, which resulted in a 1.57-fold enhancement compared to the control. The key role of calcium/calmodulin signaling in dalesconols biosynthesis was confirmed by treatment with Ca2+ channel and calmodulin inhibitors. The transcriptional levels of dalesconols biosynthetic genes were up-regulated after CaCl2 addition and down-regulated after inhibitors were added. The results demonstrated that Ca2+ addition induces dalesconols biosynthesis through up-regulation of dalesconols biosynthesis genes via regulation of calcium/calmodulin signaling. This study provided an efficient strategy for improving dalesconols production and would facilitate further research on the biosynthesis and regulation of dalesconols. PMID- 29029817 TI - Predictable or fateful-a short guide for how to anticipate risk to keep the incidence of aortoesophageal fistulation to a minimum. PMID- 29029816 TI - Functional analysis of methyltransferases participating in streptothricin-related antibiotic biosynthesis. AB - Streptothricin (ST) and its related compounds produced by Streptomyces strains are broad-spectrum antibiotics that consist of carbamoylated d-gulosamine, amino acid side chain, and streptolidine lactam moieties. BD-12, a streptothricin related antibiotic, has a glycine-derived side chain and two N-methyl groups, whereas ST-F carrying the l-beta-lysine side chain has no methyl group. In our previous studies, we identified and characterized the BD-12 and ST biosynthetic gene clusters. Here we report the functional analysis of two methyltransferase genes (orf 6 and orf 13) in the BD-12 biosynthetic gene cluster. Combinatorial biosynthesis using these two methyltransferase genes and the ST biosynthetic gene cluster resulted in the production of three methylated forms of ST-F. Among them, N,N'-dimethyl-ST-F, a novel compound generated in the present study, showed bacteria-specific antibiotic activities, although ST-F exhibits antibiotic activities against both prokaryotes and eukaryotes. Our findings also demonstrated that the orf 6 and orf 13 genes are responsible for the N methylations of the amide bonds in the streptolidine lactam and in the amino-acid side chain linkage, respectively, and that N-methyl modification of the streptolidine lactam confers resistance in part against an ST hydrolase, SttH. PMID- 29029818 TI - Anomalous aortic origin of a coronary artery: 90% of optimal therapy is 50% improved technology. PMID- 29029819 TI - The left internal thoracic artery supplying a major part of the gastrointestinal tract. PMID- 29029820 TI - To breathe or to breathe better: Is that the question? PMID- 29029821 TI - The thoracoabdominal saga and heroes. PMID- 29029822 TI - Which aortic valve prosthesis I would implant on myself? PMID- 29029823 TI - Open melody implant in a vascular graft-An alternative to the bioprosthetic valve? PMID- 29029824 TI - Increased cerebrospinal fluid levels of cytokines monocyte chemoattractant protein-1 (MCP-1) and macrophage inflammatory protein-1beta (MIP-1beta) in patients with amyotrophic lateral sclerosis. AB - INTRODUCTION: Neuroinflammation has recently been described in amyotrophic lateral sclerosis (ALS). However, the precise role of such proinflammatory cytokines as monocyte chemoattractant protein-1 (MCP-1) and macrophage inflammatory protein-1beta (MIP-1beta) in ALS has not yet been determined. In this study, we determined cerebrospinal fluid (CSF) MCP-1 and MIP-1beta levels and assessed their association with the duration and severity of ALS. METHODS: Concentrations of MCP-1 and MIP-1beta were determined in the CSF of 77 patients diagnosed with ALS and 13 controls. Cytokine levels were analysed in relation to ALS duration (<12months vs. >12months) and severity (<30points vs. >30points on the ALS Functional Rating Scale administered at hospital admission). RESULTS: Higher CSF MIP-1beta (10.68pg/mL vs. 4.69pg/mL, P<.0001) and MCP-1 (234.89pg/mL vs. 160.95pg/mL, P=.011) levels were found in the 77 patients with ALS compared to controls. There were no differences in levels of either cytokine in relation to disease duration or severity. However, we did observe a significant positive correlation between MIP-1beta and MCP-1 in patients with ALS. CONCLUSIONS: The increase in MIP-1beta and MCP-1 levels suggests that these cytokines may have a synergistic effect on ALS pathogenesis. However, in our cohort, no association was found with either the duration or the clinical severity of the disease. PMID- 29029825 TI - [Cherry red spot macula in the context of Tay-Sachs disease]. PMID- 29029826 TI - [Fear the power of the fingers!] PMID- 29029827 TI - Dancing with the Stars: An Asterid NLR Family. AB - Wu and co-workers show how a network of sensor and helper NOD-like receptor proteins (NLRs) act together to confer robust resistance to diverse plant pathogens. PMID- 29029828 TI - Bridging Scales in Plant Biology Using Network Science. AB - Three recent studies have captured the organizational properties of plants at each the cellular, organ, and whole organism level. Data abstraction into networks enabled topological analyses to be performed, identifying optimizations within each scale. Multiscale network analysis provides the opportunity to integrate these levels, and quantitatively link genotype to phenotype. PMID- 29029829 TI - Oxygen, Energy, and Light Signalling Direct Meristem Fate. AB - Light, nutrition, and oxygen are each important cues for developmental transitions in plants. A small number of recent studies have converged to give the first indication of how these environmental cues act together and independently via auxin, cytokinin, and ethylene to regulate cell proliferation in the root and shoot meristems. PMID- 29029830 TI - Responsiveness of Persian Version of Consensus Auditory Perceptual Evaluation of Voice (CAPE-V), Persian Version of Voice Handicap Index (VHI), and Praat in Vocal Mass Lesions with Muscle Tension Dysphonia. AB - OBJECTIVES: This study was aimed at determining the internal and external responsiveness of the Persian version of the Consensus Auditory-Perceptual Evaluation of Voice (called ATSHA), Persian version of the Voice Handicap Index (VHI), and Praat scales among patients with vocal mass lesions and secondary muscle tension dysphonia. STUDY DESIGN: Prospective, within-participant repeated measures. METHOD: Thirty patients with vocal fold nodules, polyps, and cysts related to secondary muscle tension dysphonia participated in the study. The measures of interest and videostroboscopy examination were used before and after treatment. The Global Perceived Effect questionnaire was used to separate those improved (moderately or greatly improved) and stable (slightly improved) patients. RESULTS: The mean standardized response, standardized effect size, and Guyatt analyses indicated high internal responsiveness for the all target parameters of the ATSHA, total score of the VHI, and two parameters of the Praat (0.8<). There was poor correlation between the videostroboscopy and the other target scales (r Pearson = -0.1-0.1). The receiver operating characteristic analysis indicated that all the target scales did not significantly separate those improved and stable subjects (area under the curve = 0), except for the overall severity and roughness parameters of the ATSHA scale (area under the curve = 1). CONCLUSION: This study recommends both the Consensus Auditory Perceptual Evaluation of Voice and the VHI scales to show voice therapy changes. The target voice scale changes were not able to predict the videostroboscopy changes as external standard. Furthermore, we recommend that the overall severity and roughness may properly classify those improved and stable patients. PMID- 29029831 TI - Transmission Electron Microscopy of the Presbylarynx in the Process of Voice Aging. AB - INTRODUCTION: Microscopy studies of presbylarynx have identified epithelial atrophy, as well as vocal muscle atrophy, increased collagen, and decreased nonfibrous proteins of the extracellular matrix. Studies on the ultrastructure of presbylarynx are rare and can help us understand the pathophysiology of presbyphonia. OBJECTIVE: To describe details on the ultrastructure of presbylarynx by transmission electron microscopy (TEM). SUBJECTS AND METHODS: Sixteen human larynges were removed and distributed in two groups: control (n = 8; 30-50 years; six females, two males) and seniors (n = 8; 75-92 years; six females, two males). After preparation for TEM, the specimens, including epithelium and lamina propria, were examined and photographed at increasing magnification. RESULTS: Control: the epithelium was intact, with overlapped cells, and with desmosomes between the intercellular junctions. The basement membrane was continuous and uniform, and the lamina propria contained collagen and elastic fibers in a regularly distributed loose arrangement, as well as some fibroblasts of different shapes. Senior: the epithelial cells were separated by enlarged intercellular junctions. The basement membrane was delicate and continuous. In the lamina propria there was predominance of elongated fibroblasts. Under the basement membrane a dense network of collagen fibers could be identified. CONCLUSIONS: In this study with TEM some structural changes were identified, particularly in the larynx of the elderly, both in the epithelium and lamina propria, some of them with likely participation of fibroblasts, which reinforces the importance of additional ultrastructure as well as molecular studies targeting those cells, as they are the main precursors of the components of the extracellular matrix. PMID- 29029832 TI - Tumour auto-contouring on 2d cine MRI for locally advanced lung cancer: A comparative study. AB - BACKGROUND AND PURPOSE: Radiotherapy guidance based on magnetic resonance imaging (MRI) is currently becoming a clinical reality. Fast 2d cine MRI sequences are expected to increase the precision of radiation delivery by facilitating tumour delineation during treatment. This study compares four auto-contouring algorithms for the task of delineating the primary tumour in six locally advanced (LA) lung cancer patients. MATERIAL AND METHODS: Twenty-two cine MRI sequences were acquired using either a balanced steady-state free precession or a spoiled gradient echo imaging technique. Contours derived by the auto-contouring algorithms were compared against manual reference contours. A selection of eight image data sets was also used to assess the inter-observer delineation uncertainty. RESULTS: Algorithmically derived contours agreed well with the manual reference contours (median Dice similarity index: ?0.91). Multi-template matching and deformable image registration performed significantly better than feature-driven registration and the pulse-coupled neural network (PCNN). Neither MRI sequence nor image orientation was a conclusive predictor for algorithmic performance. Motion significantly degraded the performance of the PCNN. The inter observer variability was of the same order of magnitude as the algorithmic performance. CONCLUSION: Auto-contouring of tumours on cine MRI is feasible in LA lung cancer patients. Despite large variations in implementation complexity, the different algorithms all have relatively similar performance. PMID- 29029833 TI - Interim 18F-FDG-PET/CT during chemo-radiotherapy in the management of oesophageal cancer patients. A systematic review. AB - Oesophageal cancer is an aggressive disease. The possibility to early stratify patients as responsive and non-responsive with a non-invasive method is extremely appealing. The uptake of Fluorodeoxyglucose (18F-FDG) in tumours, provided by positron emission tomography (PET) images, has been proved to be useful to assess the initial staging of the disease, recurrence, and response to chemotherapy and chemo-radiotherapy (CRT). In the last years, efforts have been focused on the possibility to use ad interim 18F-FDG-PET/CT (PETint) to evaluate response during radiation therapy. However, controversial findings have been reported, although some relevant results would support its use for individual therapeutic decision. The present review assembles the comprehensive literature of the last decade to evaluate whether and in which cases PETint may offer predictive potential in oesophageal cancer. All the analysed studies (13 studies, 697 patients) denoted PETint as a challenging examination for early assessment of outcomes during CRT. In particular, 8 studies advocated the predictivity of PETint, whilst 5 did not find any correlation between the interim variation of PET parameters and the pathological complete response and/or the clinical outcome. The reasons that possibly have caused contradictions among the studies demand further research with prospective and uniform protocols and methods of analysis to assess the predictive and prognostic value of PETint in oesophageal cancer. PMID- 29029834 TI - Biochar composite membrane for high performance pollutant management: Fabrication, structural characteristics and synergistic mechanisms. AB - Biochar, a natural sourced carbon-rich material, has been used commonly in particle shape for carbon sequestration, soil fertility and environmental remediation. Here, we report a facile approach to fabricate freestanding biochar composite membranes for the first time. Wood biochars pyrolyzed at 300 degrees C and 700 degrees C were blended with polyvinylidene fluoride (PVdF) in three percentages (10%, 30% and 50%) to construct membranes through thermal phase inversion process. The resultant biochar composite membranes possess high mechanical strength and porous structure with uniform distribution of biochar particles throughout the membrane surface and cross-section. The membrane pure water flux was increased with B300 content (4825-5411 +/- 21 L m-2 h-1) and B700 content (5823-6895 +/- 72 L m-2 h-1). The membranes with B300 were more hydrophilic with higher surface free energy (58.84-60.31 mJ m-2) in comparison to B700 (56.32-51.91 mJ m-2). The biochar composite membranes indicated promising adsorption capacities (47-187 mg g-1) to Rhodamine B (RhB) dye. The biochar membranes also exhibited high retention (74-93%) for E. coli bacterial suspensions through filtration. After simple physical cleaning, both the adsorption and sieving capabilities of the biochar composite membranes could be effectively recovered. Synergistic mechanisms of biochar/PVdF in the composite membrane are proposed to elucidate the high performance of the membrane in pollutant management. The multifunctional biochar composite membrane not only effectively prevent the problems caused by directly using biochar particle as sorbent but also can be produced in large scale, indicating great potential for practical applications. PMID- 29029835 TI - Large-scale multi-stage constructed wetlands for secondary effluents treatment in northern China: Carbon dynamics. AB - Multi-stage constructed wetlands (CWs) have been proved to be a cost-effective alternative in the treatment of various wastewaters for improving the treatment performance as compared with the conventional single-stage CWs. However, few long term full-scale multi-stage CWs have been performed and evaluated for polishing effluents from domestic wastewater treatment plants (WWTP). This study investigated the seasonal and spatial dynamics of carbon and the effects of the key factors (input loading and temperature) in the large-scale seven-stage Wu River CW polishing domestic WWTP effluents in northern China. The results indicated a significant improvement in water quality. Significant seasonal and spatial variations of organics removal were observed in the Wu River CW with a higher COD removal efficiency of 64-66% in summer and fall. Obvious seasonal and spatial variations of CH4 and CO2 emissions were also found with the average CH4 and CO2 emission rates of 3.78-35.54 mg m-2 d-1 and 610.78-8992.71 mg m-2 d-1, respectively, while the higher CH4 and CO2 emission flux was obtained in spring and summer. Seasonal air temperatures and inflow COD loading rates significantly affected organics removal and CH4 emission, but they appeared to have a weak influence on CO2 emission. Overall, this study suggested that large-scale Wu River CW might be a potential source of GHG, but considering the sustainability of the multi-stage CW, the inflow COD loading rate of 1.8-2.0 g m-2 d-1 and temperature of 15-20 degrees C may be the suitable condition for achieving the higher organics removal efficiency and lower greenhouse gases (GHG) emission in polishing the domestic WWTP effluent. The obtained knowledge of the carbon dynamics in large-scale Wu River CW will be helpful for understanding the carbon cycles, but also can provide useful field experience for the design, operation and management of multi-stage CW treatments. PMID- 29029836 TI - Uranium in agricultural soils and drinking water wells on the Swiss Plateau. AB - Mineral phosphorus fertilizers are regularly applied to agricultural sites, but their uranium (U) content is potentially hazardous to humans and the environment. Fertilizer-derived U can accumulate in the soil, but might also leach to ground-, spring and surface waters. We sampled 19 mineral fertilizers from the canton of Bern and soils of three arable and one forest reference sites at each of four locations with elevated U concentrations (7-28 MUg L-1) in nearby drinking water wells. The total U concentrations of the fertilizers were measured. The soils were analysed at three depth intervals down to 1 m for general soil parameters, total Cd, P, U and NaHCO3-extractable U concentrations, and 234/238U activity ratios (AR). The U concentrations and AR values of the drinking water samples were also measured. A theoretical assessment showed that fertilizer-derived U may cause high U concentrations in leaching waters (up to approx. 25 MUg L-1), but normally contributes only a small amount (approx. 0-3 MUg L-1). The arable soils investigated showed no significant U accumulation compared to the forest sites. The close positive correlation of AR with NaHCO3-extractable U (R = 0.7, p < 0.001) indicates that application of fertilizer can increase the extractable U pool. The lack of depth gradients in the soil U concentrations (1.5-2.7 mg kg-1) and AR (0.90-1.06) ratios are inconsistent with the accumulation of U in the surface soil, and might indicate some leaching of fertilizer-derived U. The AR values in the water samples were close to 1, possibly suggesting an influence of fertilizer-derived U. However, based on findings from the literature and considering the heterogeneity of the catchment area, the agricultural practices, and the comparatively long distance to the groundwater, we conclude that fertilizer-derived U makes only a minor contribution to the elevated U concentrations in the water samples. PMID- 29029837 TI - A review of current evidence regarding the ICD-11 proposals for diagnosing PTSD and complex PTSD. AB - The World Health Organization's proposals for posttraumatic stress disorder (PTSD) in the 11th edition of the International Classification of Diseases, scheduled for release in 2018, involve a very brief set of symptoms and a distinction between two sibling disorders, PTSD and Complex PTSD. This review of studies conducted to test the validity and implications of the diagnostic proposals generally supports the proposed 3-factor structure of PTSD symptoms, the 6-factor structure of Complex PTSD symptoms, and the distinction between PTSD and Complex PTSD. Estimates derived from DSM-based items suggest the likely prevalence of ICD-11 PTSD in adults is lower than ICD-10 PTSD and lower than DSM IV or DSM-5 PTSD, but this may change with the development of items that directly measure the ICD-11 re-experiencing requirement. Preliminary evidence suggests the prevalence of ICD-11 PTSD in community samples of children and adolescents is similar to DSM-IV and DSM-5. ICD-11 PTSD detects some individuals with significant impairment who would not receive a diagnosis under DSM-IV or DSM-5. ICD-11 CPTSD identifies a distinct group who have more often experienced multiple and sustained traumas and have greater functional impairment than those with PTSD. PMID- 29029838 TI - Global analysis of neurological disease: burden and benefit. PMID- 29029840 TI - Pathology and hippocampal atrophy in Alzheimer's disease. PMID- 29029839 TI - Restless legs syndrome: is it all in the genes? PMID- 29029841 TI - Challenges and unfulfilled promises in Parkinson's disease. PMID- 29029842 TI - Palliative care in neurology. PMID- 29029843 TI - Palliative care in neurology. PMID- 29029844 TI - Trying to change the stroke landscape in Nigeria. PMID- 29029845 TI - Andrew Maas (and the bird on his shoulder). PMID- 29029847 TI - The diagnostic challenge of small fibre neuropathy: clinical presentations, evaluations, and causes. AB - Small fibre neuropathies are a heterogeneous group of disorders affecting thinly myelinated Adelta-fibres and unmyelinated C-fibres. Although multiple causes of small nerve fibre degeneration have been reported, including via genetic mutations, the cause of small fibre neuropathy remains unknown in up to 50% of cases. The typical clinical presentation of small fibre neuropathy is that of a symmetrical, length-dependent polyneuropathy associated with sensory or autonomic symptoms. More rarely, the clinical presentation is characterised by non-length dependent, focal, or multifocal symptoms. The diagnostic tests to identify small fibre neuropathy include skin biopsy, quantitative sensory, and autonomic testing. Additional tests, such as those measuring small fibre-related evoked potentials and corneal confocal microscopy, might contribute to a better understanding of these neuropathies. Biochemical markers can also help in screening patients for the presence of small fibre neuropathy and to assess disease progression. PMID- 29029848 TI - Fluoride containing bioactive glass composite for orthodontic adhesives - ion release properties. AB - OBJECTIVE: Dental materials that release calcium, phosphate and fluoride ions could prevent demineralisation and/or enhance remineralisation of enamel. The objective was to develop a novel bioactive glass (BAG) resin and investigate pH changes and ion release in 3 immersion media. METHODS: Quench melt derived BAG (35.25% SiO2, 6% Na2O, 43% CaO, 5.75% P2O5, and 10% CaF2) was incorporated into a resin (42.25% BisEMA, 55% TEGDMA, 0.25% DMAEM, 0.5% camphorquinone and 2% 4 Meta), with a filler load of 80% by weight. Ninety composite disks for each BAG loading of 80%, 60%, 50%, 40%, 20%, and 0% were made and each disk was immersed in 10ml of either tris buffer (TB), or artificial saliva at pH=7 (AS7) or pH=4 (AS4), n=30 for each solution. Three disks of each loading were taken from each of the solutions, at ten time points (6h-6months), for measurement of pH, fluoride, calcium and phosphate. RESULTS: The BAG adhesive raised the pH in all the solutions, release Ca, PO4 and F ions especially in AS4. The rise in pH and the release of Ca and F are directly related to the BAG loading and the time of immersion. The pH and the ion releases were maintained and continued over 6months. SIGNIFICANCE: Unlike glass ionomer resins, favourable ions F, Ca and PO4 releases were maintained over a long time period especially in acidic condition for this novel BAG-resin composite. This indicates the resin has the potential to prevent formation and progression of early caries lesions. PMID- 29029849 TI - Impact of the heating/quenching process on the mechanical, optical and thermodynamic properties of polyetheretherketone (PEEK) films. AB - OBJECTIVE: The aim of this study was to investigate the impact of a heating/quenching process on the optical, mechanical and thermodynamic properties of filled (20%_4000) and unfilled PEEK films (0%_2000 and 0%_4000). Heating/quenching was performed to simulate thermoforming as possible method to process thermoplastic polymers for dental application. METHODS: For the investigation, films of different PEEK qualities (0%_2000, 0%_4000, 20%_4000) were produced using isostatic pressing (n=10/quality). From each PEEK film, round specimens (n=20/PEEK film) with a diameter of 34mm were cut and following parameters were determined: translucency (T%), Martens-Hardness (HM), indentation modulus (EIT), glass transition temperature (TG), melting temperature (TM) and enthalpy of fusion (DeltaHf). Same specimens were exposed to heating/quenching using defined parameters. Afterwards, T%, HM, EIT, TG, TM and DeltaHf were determined again. Data were analysed using Kolmogorov-Smirnov test, univariate ANOVA followed by post-hoc Scheffe test with partial eta squared (etap2), Kruskal Wallis and Mann Whitney U test. Level of significance was defined to 95%. RESULTS: Materials showed significant differences for all investigated parameters in the initial state, except of TG (p=0.249). The heating/quenching process showed a significant increase on T% for the unfilled materials 0%_2000 and 0%_4000. HM and EIT decreased significantly through heating/quenching for all materials. Moreover, heating/quenching showed a reduction of TG for 0%_2000 and 20%_4000, while TM decreased for 0%_2000 and 0%_4000. DeltaHf confirms different crystallinities of tested materials. SIGNIFICANCE: The heating/quenching process showed a significant impact on all investigated parameters. The highest impact was found for mechanical properties resulting in decreased values of HM and EIT. PMID- 29029850 TI - Surface characteristics of dental implants: A review. AB - OBJECTIVES: During the last decades, several changes of paradigm have modified our view on how biomaterials' surface characteristics influence the bioresponse. After becoming aware of the role of a certain microroughness for improved cellular contact and osseointegration of dental titanium implants, the likewise important role of surface energy and wettability was increasingly strengthened. Very recently, synergistic effects of nanoscaled topographical features and hydrophilicity at the implant/bone interface have been reported. METHODS: Questions arise about which surface roughness and wetting data are capable to predict the bioresponse and, ultimately, the clinical performance. Current methods and approaches applied for topographical, wetting and surface energetic analyses are highlighted. Current knowledge of possible mechanisms explaining the influence of roughness and hydrophilicity at the biological interface is presented. RESULTS: Most marketed and experimental surfaces are based on commonly available additive or subtractive surface modifying methods such as blasting, etching or anodizing. Different height, spatial, hybrid and functional roughness parameters have been identified as possible candidates able to predict the outcome at hard and soft tissue interfaces. Likewise, hydrophilic implants have been proven to improve the initial blood contact, to support the wound healing and thereby accelerating the osseointegration. SIGNIFICANCE: There is clear relevance for the influence of topographical and wetting characteristics on a macromolecular and cellular level at endosseous implant/biosystem interfaces. However, we are still far away from designing sophisticated implant surfaces with the best possible, selective functionality for each specific tissue or cavity interface. Firstly, because our knowledge of the respective surface related reactions is at best fragmentary. Secondly, because manufacturing of multi-scaled complex surfaces including distinct nanotopographies, wetting properties, and stable cleanliness is still a technical challenge and far away from being reproducibly transferred to implant surfaces. PMID- 29029852 TI - Human adipose tissue-derived stem cells inhibit the activity of keloid fibroblasts and fibrosis in a keloid model by paracrine signaling. AB - BACKGROUND: Human adipose tissue-derived mesenchymal stem cells (ASCs) have potential utility as modulators of the regeneration of tissue that is inflamed or scarred secondary to injuries such as burns or trauma. However, the effect of ASCs on one particular type of scarring, keloidal disease, remains unknown. The absence of an optimal model for investigation has hindered the development of an effective therapy using ASCs for keloids. OBJECTIVE: To investigate the influence of ASCs on angiogenesis, extracellular matrix deposition, and inflammatory cell influx in keloids. METHODS: We analyzed the proliferation, migration, and apoptosis of human keloid-derived fibroblasts treated with a starvation-induced, conditioned medium from ASCs (ASCs-CM). This was achieved by Brdu proliferation assay, a validated co-culture migration assay, and flow cytometry, respectively. To assess the change in phenotype to a pro-fibrotic state, fibroblasts were analyzed by real-time PCR and contraction assay. A keloid implantation animal model was used to assess the paracrine effect of ASCs histochemically and immunohistochemically on scar morphology, collagen deposition, inflammatory cell composition, and blood vessel density. In tandem, an antibody-based array was used to identify protein concentration in the presence of ASCs-CM at time point 0, 24, and 48h. RESULTS: ASCs-CM inhibited the proliferation and collagen synthesis of human keloid-derived fibroblasts. ASCs-CM was associated with reduced inflammation and fibrosis in the keloid implantation model. Thirty-four cytokines were differentially regulated by ASCs-CM at 24h. These included molecules associated with apoptosis, matrix metalloproteases, and their inhibitors. The same molecules were present at relatively higher concentrations at the 48h timepoint. CONCLUSION: These results suggest that ASCs are associated with the inhibition of fibrosis in keloids by a paracrine effect. This phenomenon may have utility as a therapeutic approach in the clinical environment. PMID- 29029853 TI - Response to Letter to the Editor 'Long term mortality in critically ill burn survivors: Methodological issues'. PMID- 29029846 TI - Identification of novel risk loci for restless legs syndrome in genome-wide association studies in individuals of European ancestry: a meta-analysis. AB - BACKGROUND: Restless legs syndrome is a prevalent chronic neurological disorder with potentially severe mental and physical health consequences. Clearer understanding of the underlying pathophysiology is needed to improve treatment options. We did a meta-analysis of genome-wide association studies (GWASs) to identify potential molecular targets. METHODS: In the discovery stage, we combined three GWAS datasets (EU-RLS GENE, INTERVAL, and 23andMe) with diagnosis data collected from 2003 to 2017, in face-to-face interviews or via questionnaires, and involving 15 126 cases and 95 725 controls of European ancestry. We identified common variants by fixed-effect inverse-variance meta analysis. Significant genome-wide signals (p<=5 * 10-8) were tested for replication in an independent GWAS of 30 770 cases and 286 913 controls, followed by a joint analysis of the discovery and replication stages. We did gene annotation, pathway, and gene-set-enrichment analyses and studied the genetic correlations between restless legs syndrome and traits of interest. FINDINGS: We identified and replicated 13 new risk loci for restless legs syndrome and confirmed the previously identified six risk loci. MEIS1 was confirmed as the strongest genetic risk factor for restless legs syndrome (odds ratio 1.92, 95% CI 1.85-1.99). Gene prioritisation, enrichment, and genetic correlation analyses showed that identified pathways were related to neurodevelopment and highlighted genes linked to axon guidance (associated with SEMA6D), synapse formation (NTNG1), and neuronal specification (HOXB cluster family and MYT1). INTERPRETATION: Identification of new candidate genes and associated pathways will inform future functional research. Advances in understanding of the molecular mechanisms that underlie restless legs syndrome could lead to new treatment options. We focused on common variants; thus, additional studies are needed to dissect the roles of rare and structural variations. FUNDING: Deutsche Forschungsgemeinschaft, Helmholtz Zentrum Munchen-Deutsches Forschungszentrum fur Gesundheit und Umwelt, National Research Institutions, NHS Blood and Transplant, National Institute for Health Research, British Heart Foundation, European Commission, European Research Council, National Institutes of Health, National Institute of Neurological Disorders and Stroke, NIH Research Cambridge Biomedical Research Centre, and UK Medical Research Council. PMID- 29029851 TI - Arresting Evolution. AB - Evolution in the form of selective breeding has long been harnessed as a useful tool by humans. However, rapid evolution can also be a danger to our health and a stumbling block for biotechnology. Unwanted evolution can underlie the emergence of drug and pesticide resistance, cancer, and weeds. It makes live vaccines and engineered cells inherently unreliable and unpredictable, and therefore potentially unsafe. Yet, there are strategies that have been and can possibly be used to stop or slow many types of evolution. We review and classify existing population genetics-inspired methods for arresting evolution. Then, we discuss how genome editing techniques enable a radically new set of approaches to limit evolution. PMID- 29029854 TI - Hospitalized burns in Finland: 36305 cases from 1980-2010. AB - To analyse the epidemiology of burns in Finland, a comprehensive study was conducted among all hospitalized burn patients between 1980 and 2010. All patients with burn injury as the main diagnosis, 36305 cases in total, treated in the public and private sectors, were included. Patient data were obtained from the Finnish Hospital Discharge Register (FHDR). The incidence of hospitalized injuries declined from over 30 to 17 per 100000 persons. Men were at higher risk than women in all age groups. Children aged under ten years were overrepresented throughout the period and the highest incidence was found among one year old boys. The median total length of stay shortened from seven days in 1980-1995 to five days in 1996-2010. The annual number of hospitalized patients is recently under 1000 cases (17/100000). The male predominance (70%) did not change but the age group with the most injuries shifted from 20-39 years to 40-59 years. Injuries were most common during the summer months. This study of all hospitalized burn injuries of one entire country shows similar tendency of diminishing numbers and rising age of burn victims as in other western countries. The FHDR is a reliable source of data in epidemiological studies but precise recording of E- and N-codes in the registry would enable the accurate analysis of types and extent of injury. PMID- 29029855 TI - Improving mortality outcomes of Stevens Johnson syndrome/toxic epidermal necrolysis: A regional burns centre experience. AB - INTRODUCTION: Stevens Johnson Syndrome/toxic epidermal necrolysis (SJS/TEN) are rare, potentially fatal desquamative disorders characterised by large areas of partial thickness skin and mucosal loss. The degree of epidermal detachment that occurs has led to SJS/TEN being described as a burn-like condition. These patients benefit from judicious critical care, early debridement and meticulous wound care. This is best undertaken within a multidisciplinary setting led by clinicians experienced in the management of massive skin loss and its sequelae. In this study, we examined the clinical outcomes of SJS/TEN overlap & TEN patients managed by our regional burns service over a 12-year period. We present our treatment model for other burn centres treating SJS/TEN patients. METHODS: A retrospective case review was performed for all patients with a clinical diagnosis of TEN or SJS/TEN overlap admitted to our paediatric and adult burns centre between June 2004 and December 2016. Patient demographics, percentage total body surface area (%TBSA), mucosal involvement, causation, severity of illness score (SCORTEN), length of stay and survival were appraised with appropriate statistical analysis performed using Graph Pad Prism 7.02 Software. RESULTS: During the study period, 42 patients (M26; F: 16) with TEN (n=32) and SJS/TEN overlap (n=10) were managed within our burns service. Mean %TBSA of cutaneous involvement was 57% (range 10-100%) and mean length of stay (LOS) was 27 days (range 1-144 days). We observed 4 deaths in our series compared to 16 predicted by SCORTEN giving a standardised mortality ratio (SMR) of 24%. CONCLUSION: Management in our burns service with an aggressive wound care protocol involving debridement of blistered epidermis and wound closure with synthetic and biological dressings seems to have produced benefits in mortality when compared to predicted outcomes. PMID- 29029856 TI - What about HES in burn patients?: Evaluation of the actual evidence. PMID- 29029857 TI - The clinical utility of extracorporeal shock wave therapy for burn pruritus: A prospective, randomized, single-blind study. AB - PURPOSES: To investigate the effect and mechanisms of extracorporeal shock wave therapy (ESWT) on burn scar pruritus. METHODS: Forty-six patients participated (experimental group, n=23; sham stimulation group, n=23). Patients had complaints of severe pruritus ranging from 5 to 10 on the visual analog scale. The experimental group received 1000-2000 shock waves for each treatment with 100 impulses/cm2, each with low-energy flux density (0.05-0.20mJ/mm2) and a 1-week interval between treatments for 3 weeks. The numerical rating scale (NRS), 5D Itch Scale, and Leuven Itch Scale were evaluated immediately before ESWT and after the third session. Laser Doppler blood perfusion imaging (LDI) was performed immediately before ESWT and after the first and third sessions. RESULTS: In the experimental group, mean NRS scores were 6.30+/-1.29 before therapy and 3.57+/-2.09 after the third session, and the difference was significant (p<0.001). NRS scores in the experimental group after the third ESWT were significantly decreased compared to those of the sham stimulation group (p=0.009). The duration, severity, and consequences scores of pruritus on the Leuven Itch Scale after the third ESWT were significantly decreased in the experimental group compared with the sham stimulation group (p=0.033, p=0.007, and p=0.009, respectively). The direction score on the 5-D Itch Scale after the third ESWT was significantly decreased in the experimental group compared to the sham stimulation group (p=0.033). After the first ESWT session and after 3 sessions, the burn area had a significant increase in perfusion according to LDI, compared with the scores before treatment in the experimental group (p=0.023 and p=0.013, respectively). CONCLUSION: ESWT is a non-invasive modality that significantly reduced burn-associated pruritus. PMID- 29029858 TI - The WHO well known report on preventing suicide has neglected self-immolation. PMID- 29029859 TI - Intensive insulin therapy, insulin sensitisers and insulin secretagogues for burns: A systematic review of effectiveness and safety. AB - This systematic review investigated the effectiveness and safety of intensive insulin therapy (IIT), insulin secretagogues and sensitisers in burn patients. PubMed, Embase, clinicaltrials.gov and Cochrane central were searched from 1990 to 2016. Title/abstract screening, full-text review, critical appraisal and data extraction were carried out by two independent reviewers. Inclusion criteria were hospitalised burn patients, IIT, insulin sensitisers or secretagogues and the outcomes mortality, length of stay, resting energy expenditure, blood glucose, catabolism, or complications. We identified 594 potential studies of which 13 were included. Five studies investigated IIT in paediatric patients, 3 investigated IIT in adults and 5 investigated sensitisers or secretagogues. Glycaemic targets differed with age group - paediatric studies compared IIT to loose glycaemic control while adult studies compared IIT to more moderate control. Meta-analyses were limited by differences in outcome reporting, however mortality was increased in children by loose glycaemic control (OR=3.78, 95%CI 1.19-12.02) but not significantly affected in adults by moderate compared to tight control. Meta-analyses could not be performed for sensitisers or secretagogues. These findings support recommendations that moderate insulin administration (130-150mg/dL) is the prudent approach in burn patients. The evidence is relatively sparse and further research is warranted. PMID- 29029860 TI - Chemical burns: Diphoterine untangled. AB - OBJECTIVE: Diphoterine is a hypertonic, amphoteric, polyvalent and chelating decontamination solution used in the treatment of cutaneous and ocular chemical burns. Due to infrequent use by emergency physicians along with the small number of available studies, its debate in the literature as to its efficacy and safety remains inconclusive. METHODS: A structured literature search was performed in MEDLINE, EMBASE BIOLOGICAL ABSTRACTS and TOXNET to June 2016 for original English language studies reporting on the safety and effectiveness of Diphoterine. Methodological and reporting quality of pre-clinical animal studies was assessed using the Systematic Review Centre for Laboratory Animal Experimentation (SYRCLE) risk of bias tool and Animal Research: Reporting of In Vivo Experiments (ARRIVE) guidelines. Clinical studies were assessed using Chambers' criteria. RESULTS: 13 studies (seven in the pre-clinical, five in the clinical setting and one mixed) met the study inclusion criteria. Pre-clinical studies showed a faster resolution of pH and reduced tissue necrosis with Diphoterine. Clinical studies showed reduced tissue necrosis/severity of symptoms, faster pH resolution and a reduction in pain when using Diphoterine. No adverse events were attributable to Diphoterine. Reporting and methodology of the studies was poor or showed a high risk of bias. CONCLUSIONS: Diphoterine appears to be safe to use and is probably superior to other rinsing solutions. However, immediate decontamination is imperative and if Diphoterine is not available a different rinsing solution should be used. The methodology of the published literature for Diphoterine is generally poor and future publications should use the frameworks given as templates. PMID- 29029861 TI - Burn injury outcomes in patients with pre-existing diabetic mellitus: Risk of hospital-acquired infections and inpatient mortality. AB - BACKGROUND: Diabetes mellitus (DM) is a major cause of illness and death in the United States, and diabetic patients are at increased risk for burn injury. We therefore sought to examine the impact of pre-existing DM on the risk of inpatient mortality and hospital acquired infections (HAI) among burn patients. METHODS: Adult patients (>=18 years old) admitted from 2004 to 2013 were analyzed. Weighted Kaplan-Meier survival curves - adjusting for patient demographics, burn mechanism, presence of inhalation injury, total body surface area, additional comorbidities, and differential lengths of stay - were used to estimate the 30-day and 60-day risk of mortality and HAIs. RESULTS: A total of 5539 adult patients were admitted and included in this study during the study period. 655 (11.8%) had a pre-existing DM. The crude incidence of HAIs and in hospital mortality for the whole burn cohort was 8.5% (n=378) and 4.4% (n=243), respectively. Diabetic patients were more likely to be older, female, have additional comorbidities, inhalational injury, and contact burns. After adjusting for patient and burn characteristics, the 60-day risk of HAI among patients with DM was significantly higher, compared to non-diabetic patients (RR 2.07, 95% CI 1.28, 6.79). However, no significant difference was seen in the 60-day risk of mortality (RR 1.34, 95% CI 0.44, 3.10). CONCLUSIONS: Pre-existing DM significantly increases the risk of developing an HAI in patients following burn injury, but does not significantly impact the risk of inpatient mortality. Further understanding of the immune modulatory mechanism of burn injury and DM is imperative to better attenuate the acquisition of HAIs. PMID- 29029862 TI - Hidden dangers revealed by misdiagnosed diabetic neuropathy: A comparison of simple clinical tests for the screening of vibration perception threshold at primary care level. AB - AIM: Diabetic peripheral neuropathy is an important complication and contributes to the morbidity of diabetes mellitus. Evidence indicates early detection of diabetic peripheral neuropathy results in fewer foot ulcers and amputations. The aim of this study was to compare different screening modalities in the detection of diabetic peripheral neuropathy in a primary care setting. METHOD: A prospective non-experimental comparative multi-centre cross sectional study was conducted in various Primary Health Centres. One hundred participants living with Type 2 diabetes for at least 10 years were recruited using a convenience sampling method. The Vibratip, 128Hz tuning fork and neurothesiometer were compared in the detection of vibration perception. RESULTS: This study showed different results of diabetic peripheral neuropathy screening tests, even in the same group of participants. This study has shown that the percentage of participants who did not perceive vibrations was highest when using the VibraTip (28.5%). This was followed by the neurothesiometer (21%) and the 128Hz tuning fork (12%) (p<0.001). CONCLUSION: Correct diagnosis and treatment of neuropathy in patients with diabetes is crucial. This study demonstrates that some instruments are more sensitive to vibration perception than others. We recommend that different modalities should be used in patients with diabetes and when results do not concur, further neurological evaluation should be performed. This would significantly reduce the proportion of patients with diabetes who would be falsely identified as having no peripheral neuropathy and subsequently denied the benefit of beneficial and effective secondary risk factor control. PMID- 29029864 TI - Elective repeat caesarean delivery may affect bone mineral density compared with normal vaginal delivery. PMID- 29029863 TI - Changes in Local Bone Density in Early Thumb Carpometacarpal Joint Osteoarthritis. AB - PURPOSE: Thumb carpometacarpal (CMC) osteoarthritis (OA) represents a major source of functional morbidity. The effects of early CMC OA on loading and use patterns potentially lead to changes in local bone density and microarchitecture. Hounsfield units (HU), a quantitative attenuation coefficient obtained from computed tomography (CT) scans, have been shown to be a reliable marker of bone density. We hypothesized that early CMC OA is associated with lower local bone density about the CMC joint as assessed by HU. METHODS: We examined HU units from CT scans in 23 asymptomatic subjects and 91 patients with early CMC OA. The HU measurements were obtained within cancellous portions of the trapezium, capitate, first and third metacarpal bases, and distal radius. Linear regression models, with age and sex included as covariates, were used to assess the relationship between CMC OA and HU values at each anatomical site. RESULTS: Early OA patients had significantly lower HU than asymptomatic subjects within the trapezium (mean, 377 HU vs 436 HU) and first metacarpal bases (265 HU vs 324 HU). No significant group differences were noted at the capitate, third metacarpal, or distal radius. Male sex and younger age were associated with significantly higher HU at all the anatomical sites, except the first metacarpal base, where age had no significant effect. CONCLUSIONS: Subjects presenting with early CMC OA had significantly lower bone density as assessed with HU at the thumb CMC joint (trapezium and first metacarpal base). Early thumb CMC OA and discomfort may lead to diminished loading across the basal joint, producing focal disuse osteopenia. These findings in symptomatic early arthritis suggest a relationship between symptoms, functional use of the CMC joint, and local bone density. TYPE OF STUDY/LEVEL OF EVIDENCE: Diagnostic II. PMID- 29029865 TI - Total proteolytic activity and concentration of alpha-1 antitrypsin in meconium for assessment of the protease/antiprotease balance. AB - BACKGROUND: During intrauterine life, various proteolytic enzymes and their main inhibitor, alpha-1 antitrypsin, accumulate naturally in meconium. A protease/antiprotease balance is required to maintain the biological stability of the environment in which the fetus develops. METHODS: The pool of active proteases was determined using the EnzChek Protease Assay Kit. The concentration of alpha-1 antitrypsin in meconium was measured by enzyme-linked immunosorbent assay. Serial portions of meconium (n=80) were collected from healthy full-term neonates (n=19). RESULTS: Mean concentrations of active proteases and alpha-1 antitrypsin were 1.55 [standard deviation (SD) 1.3]mgg-1 (range 0.15-6.17) and 3.72 (SD 1.78)mgg-1 (range 0.76-8.55), respectively, with significant correlation (Rs=0.32, p=0.004). A significant increase in the concentration of active proteases was found between the first and last meconium portions (p<0.05). The proteases in the last meconium portions had a higher reaction velocity and affinity for the substrate than the proteases in the first meconium portions. The active protease:alpha-1 antitrypsin ratio was <0.5 in all first meconium portions, but was higher in the last meconium portions. CONCLUSIONS: Strong correlation between the concentrations of active proteases and alpha-1 antitrypsin in meconium may indicate their mutual interaction in the intrauterine environment. Alpha-1 antitrypsin maintains the protease/antiprotease balance during fetal development. PMID- 29029866 TI - Optic Chiasm Involvement With Concurrent Typical Wernicke Encephalopathy Magnetic Resonance Findings: A Case Report. AB - The variable clinical presentation of Wernicke encephalopathy often complicates interpretation. Prompt and accurate diagnosis relies on a constellation of typical and atypical magnetic resonance imaging (MRI) findings, which are not always simultaneously present. Our case demonstrates concurrent presentation of all typical Wernicke encephalopathy MRI findings with additional signal abnormalities involving the optic chiasm and optic tract. We suggest that optic pathway involvement may be considered among several atypical MRI manifestations, reinforcing the prompt diagnosis of the potentially life-threatening encephalopathy. PMID- 29029867 TI - A Text Messaging Intervention to Support Option B+ in Kenya: A Qualitative Study. AB - Key challenges in providing lifelong antiretroviral therapy (ART) to pregnant and breastfeeding women (Option B+) in sub-Saharan Africa include achieving long-term adherence and retention in care. One intervention that may help address these challenges is mobile text messaging. We evaluated the acceptability of a text messaging intervention to support women's ART adherence and retention in care in rural western Kenya. Forty in-depth interviews with 20 pregnant/postpartum women infected with HIV, their male partners, and four focus groups with 30 health care providers were conducted during September-November 2014. Data were coded and analyzed using thematic analysis. Findings revealed the following themes: (a) overall acceptability of the text messaging intervention; (b) proposed content of text messages; (c) format, timing, and language of text messages; and (d) potential challenges of the text messaging intervention. Findings were used to refine a text messaging intervention being evaluated at Kenyan study sites rolling out Option B+. PMID- 29029868 TI - Does severe osteoarthritis in knees with varus deformity alter the adductor ratio? AB - OBJECTIVE: In our retrospective study, we aimed to investigate the differences between the adductor ratio (AR) in knees with and without osteoarthritis, and its validity in determining the articular level. METHODS: Data from 80 knees of 80 patients were retrospectively evaluated. Anteroposterior weight-bearing knee radiographs of the patients with and without osteoarthritis (40 knees in each group) were obtained. The adductor ratio was determined using the following formula: ATJL/FW (adductor tubercle-joint line distance/femoral width). All radiographs were evaluated at the baseline and at one-month intervals afterwards. Intraobserver reliability of the two measurements was assessed using interclass correlations (ICC). Pearson's correlation test was used to evaluate the correlation between the ATJL and the FW. The differences between the adductor ratios of the two groups were evaluated by the independent samples two-tailed t test. RESULTS: Most of the ICC values were well above 0.95, indicating a very high intraobserver reliability. The adductor ratio was significantly greater in Group 2 in comparison to Group 1 (Mean AR in Group 2: 0.522 +/- 0.031 and Mean AR in Group 1: 0.502 +/- 0.032; p = 0.005). There was a significant correlation between the ATJL and FW in the groups when assessed both separately and combined. CONCLUSION: In conclusion, we can assert that if the AR is used to determine the articular level in revision arthroplasty cases, it may be sensible to measure the FW intraoperatively rather than measuring it on primary or contralateral radiographs of arthritic patients. LEVEL OF EVIDENCE: Level III, Diagnostic study. PMID- 29029870 TI - An obesity paradox with myocardial infarction in the elderly. PMID- 29029869 TI - Determination of the hip rotation centre from landmarks in pelvic radiograph. AB - OBJECTIVE: The hip rotation centre (HRC) is an important reference point in cases of total hip arthroplasty (THA). The aim of this study is to investigate the reference points in the Turkish population that enable the identification of the HRC in standard pelvic radiographs. METHODS: The pelvic radiographs of 50 women and 50 men were examined. The mean age was 46.2 (range; 18-91). Patients with deformity of the hip joint and non-standard pelvic radiograph due to hip flexion contracture were excluded from the study. The pelvic height (PH), the distance between the HRC and teardrop (HRC-Td), and the HRC and the line tangent tuber ischiadicums (HRC-TI) were measured. The ratio of HRC-Td and HRC-TI to PH were calculated. The first is called "the horizontal-HRC ratio" and the second, "the vertical-HRC ratio". RESULTS: Mean PH was 239 (+/-13.58) mm in males and 225 (+/ 12.52) in females (p < 0.0001). The distances of HRC-TI were 71 (+/-6.35) and 65 (+/-6.72) mm (p < 0.0001) and the distance of HRC-Td were 34 (+/-3.73) and 30 (+/ 4.05) mm (p = 0.0007), respectively. The vertical-HRC ratios were 30.01% (+/ 2.05) for males, 29.10% (+/-2.35) for females, the horizontal-HRC ratio, 14.25% (+/-1.42) and 13.69% (+/-1.38), respectively (p > 0.05). CONCLUSION: Although the quantitative values obtained in the present study differ between the genders, the ratios ("vertical-HRC" and "horizontal-HRC") are comparable in both sexes. The results show that these proposed ratios can be used in THA planning, regardless of gender in the Turkish population LEVEL OF EVIDENCE: Level IV, diagnostic study. PMID- 29029871 TI - Nanocasting synthesis of chromium doped mesoporous CeO2 with enhanced visible light photocatalytic CO2 reduction performance. AB - Chromium doped mesoporous CeO2 catalysts were synthesized via a simple nanocasting route by using silica SBA-15 as the template and metal nitrates as precursors. The effect of Cr doping concentration (5%, 10%, 15% and 20% of the initial Cr/(Cr+Ce) molar percentage) on the structures of these catalysts and their photocatalytic performances in reduction of CO2 with H2O were investigated. The results indicated that the introduction of Cr species could effectively extend the spectral response range from UV to visible light region (400-700nm) and improve the electronic conductivity for the mesoporous CeO2 catalysts which exhibited an enhanced photocatalytic activity in the reduction of CO2 with H2O when compared with the non-doped counterpart. The highest CO and CH4 yield of 16.2MUmol/g-cat. and 10.1MUmol/g-cat., respectively, were acquired on the optimal chromium doped CeO2 catalyst with the initial Cr(Cr+Ce) molar percentage of 15% under 8h visible-light irradiation, which were more than twice as high as that of bare CeO2. The remarkably increased photocatalytic performance should be attributed to the advantageous structural and compositional features of the chromium doped mesoporous CeO2. PMID- 29029872 TI - Inhibition of deubiquitinases alters gamete ubiquitination states and sperm oocyte binding ability in pigs. AB - This study was undertaken to investigate the dynamics of protein ubiquitination in pig gametes and their micro-environments, as well as to explore the action of deubiquitinases (DUBs) in sperm-oocyte binding. Protein ubiquitination states were evaluated by in the ejaculated sperm, seminal plasma, epididymal sperm, oocytes, zona pellucida (ZP) and follicular fluid (FF) by western blotting. Different concentrations of PR-619, a non-selective inhibitor of DUBs, were used to treat oocytes during in vitro maturation (IVM), the maturation rate, amount of ubiquitinated ZP proteins, and ZP solubility were assessed. The PR-619 was also used to treat sperms during capacitation, then the ubiquitinated amounts of acrosin inhibitor (AI) proteins were evaluated. The number of sperm attached to the ZP of each oocyte was subsequently determined after gamete co-incubation. The study indicates the existence of ubiquitinated proteins (76kDa) in sperm, seminal plasma, oocytes, and follicular fluid (FF). The amount of ubiquitinated ZP proteins changed as growth of follicles progressed. Treatment with PR-619 at 10 and 15MUM concentrations during IVM reduced the maturation rate of pig oocytes (P<0.05), while treatments with 10MUM of PR-619 extended the ZP dissolution time (P<0.05). Treatment with PR-619 enhanced AI ubiquitination and improved amounts of 30-kDa ubiquitinated proteins (P<0.05). Treatment with PR-619 at the 10MUM dose effectively reduced the number of sperm attached to per oocyte (P<0.05). Ubiquitinated proteins were present in gametes and their micro-environments. The DUBs were important in regulating pig gamete ubiquitination and sperm-oocyte binding. PMID- 29029873 TI - Prediction of calving time in dairy cattle. AB - This prospective study was carried out to predict the calving time in primiparous (n=11) and multiparous (n=22) Holstein-Friesian cows using the combination of data obtained from the RumiWatch noseband-sensor and 3D-accelerometer. The animals included in the study were fitted with the RumiWatch noseband-sensor and 3D-accelerometer at least 10days before the expected calving day. The calving event was defined as the time of the first appearance of the calves' feet outside the vulva, and this moment was determined by farm staff and/or confirmed by video monitor. As primiparous and multiparous cows behaved differently, two models including data of noseband-sensors and 3D-accelerometers were used to predict the calving time in each group. Lying bouts (LB) increased and rumination chews (RC) decreased similarly in both groups; besides that, boluses (B) decreased and other activities (OA) increased significantly in multiparous and primiparous cows, respectively. The sensitivity (Se) and specificity (Sp) for prediction of the onset of calving within the next 3h were determined with the logistic regression and ROC analysis (Se=88.9%, 85% and Sp=93.3%, 74% for multiparous and primiparous cows, respectively). This pilot study revealed that the RumiWatch system is a useful tool to predict calving time under farm conditions. PMID- 29029874 TI - Sperm subpopulations in ejaculated sperm and spermatozoa recovered from ovine epididymides up to 48h after death. AB - The objectives of this study were threefold: to identify subpopulations of sperm based on the kinetics of frozen/thawed sheep epididymal spermatozoa or semen collected with an artificial vagina; to evaluate the effects on sperm subpopulations in the thawed samples of post mortem storage at room temperature and the addition of 20% of seminal plasma to the freezing extender and to correlate the percentage of subpopulations with gestation rate following artificial intrauterine insemination. The categorization of the subpopulations was based on sperm kinetic data from Computer Assisted Sperm Analysis (CASA). A hundred ewes were inseminated with thawed spermatozoa and gestation rate was correlated with the proportions of each subpopulation using Pearson correlation matrix and linear regression. Three distinct subpopulations were identified in the thawed samples of either ovine ejaculate collected in artificial vaginas (AV) or ovine spermatozoa retrieved from the cauda epididymis. Subpopulation 1 (SP1) was characterized by spermatozoa with slow and non-linear motion, subpopulation 2 (SP2) was classified as hyperactived spermatozoa and subpopulation 3 (SP3) was composed of spermatozoa with fast, linear motion. The largest subpopulation in all groups was SP1. The semen collected in an artificial vagina had a higher (P<0.05) percentage of SP2 and lower (P<0.05) percentage of SP1 when compared to spermatozoa recovered after death. Increasing time of storage after death had a detrimental effect on sperm samples, increasing (P<0.05) the percentage of SP1 and decreasing (P<0.05) SP2. Length of storage after death was the only variable that influenced, with an inversely proportional relationship, SP3. In samples stored for 48h after death no SP3 spermatozoa were present. The addition of seminal plasma to the cryopreservative decreased (P<0.05) the subpopulation of hyperactived spermatozoa (SP2). We conclude that, after thawing there are three sperm subpopulations in the spermatozoa obtained from the cauda epididymides and the semen collected in AVs and that the relative proportions of these subpopulations varies with the time of storage post mortem and the presence of 20% of seminal plasma in the extender. However, we conclude that these subpopulations do not correlate with fertility after intrauterine artificial insemination. PMID- 29029875 TI - Oxytocin is not involved in luteolysis and early maternal recognition of pregnancy (MRP) in alpacas. AB - Pregnancy maintenance depends on the maternal recognition of pregnancy (MRP), a physiological process by which the lifespan of the corpus luteum is prolonged. This mechanism is not well characterized in camelids. The objectives of the present research were to determine if exogenous oxytocin prolongs the corpus luteum activity in alpacas and to evaluate expression and localization of oxytocin receptors within the endometrium at 9 and 14days post-mating. In the oxytocin studies, plasma progesterone profiles were determined after ovulation in the same alpacas on 2 cycles: one cycle without oxytocin treatment and one cycle with oxytocin treatment. Oxytocin was administered daily by intramuscular injections (IM) at a dose of 20IU (experiment 1, n=6) or 60IU (experiment 2, n=7 from day 3 through day 10 after induction of ovulation with GnRH IM. There was no significant difference in the length of the luteal phase (i.e. corpus luteum lifespan) between the treated and control cycles using either 20 or 60IU of oxytocin. In the final experiment, uteri from open and pregnant alpacas (n=4 per group) at 9 and 14days post-mating were evaluated for expressions of oxytocin receptors by immunohistochemistry. No significant difference (P<=0.05) in the expression of oxytocin receptors was observed between open and pregnant animals in either staining intensity or tissue localization. We conclude that oxytocin is not involved in luteolysis and early MRP in alpacas. PMID- 29029876 TI - "Hidden" nephropathy after oral phosphate preparation to colonoscopy. PMID- 29029877 TI - Substitutions of S101 decrease proton and hydride transfers in the oxidation of betaine aldehyde by choline oxidase. AB - Choline oxidase oxidizes choline to glycine betaine, with two flavin-mediated reactions to convert the alcohol substrate to the carbon acid product. Proton abstraction from choline or hydrated betaine aldehyde in the wild-type enzyme occurs in the mixing time of the stopped-flow spectrophotometer, thereby precluding a mechanistic investigation. Mutagenesis of S101 rendered the proton transfer reaction amenable to study. Here, we have investigated the aldehyde oxidation reaction catalyzed by the mutant enzymes using steady-state and rapid kinetics with betaine aldehyde. Stopped-flow traces for the reductive half reaction of the S101T/V/C variants were biphasic, corresponding to the reactions of proton abstraction and hydride transfer. In contrast, the S101A enzyme yielded monophasic traces like wild-type choline oxidase. The rate constants for proton transfer in the S101T/C/V variants decreased logarithmically with increasing hydrophobicity of residue 101, indicating a behavior different from that seen previously with choline for which no correlation was determined. The rate constants for hydride transfer also showed a logarithmic decrease with increasing hydrophobicity at position 101, which was similar to previous results with choline as a substrate for the enzyme. Thus, the hydrophilic character of S101 is necessary not only for efficient hydride transfer but also for the proton abstraction reaction. PMID- 29029878 TI - Dielectric properties of plasma membrane: A signature for dyslipidemia in diabetes mellitus. AB - Dielectric properties of a living biological membrane play crucial role indicating the status of the cell in pathogenic or healthy condition. A distinct variation in membrane capacitance and impedance was observed for peripheral blood mononuclear cell (PBMC) suspensions for diabetic and diabetic-dyslipidemic subjects compared to healthy control. Low frequency region were explicitly considered in electrical analysis to address complex membrane dielectric factors that alter the system capacitance of a PBMC suspension. Such variation was marked in size, morphology and membrane function of PBMCs for control and diseased cases. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) studies reveal significant alteration in surface morphology of PBMCs in diseased condition. Side scatter of flow cytometry reveals complexity of PBMCs in diseased condition. Changes in size between groups were not found by SEM and forward scatter. Functional alteration in PBMCs was manifested by significant changes in cell membrane properties like Na+, K+ ATPase and Ca2+, Mg2+ ATPase activity, reduced plasma membrane fluidity and changes in intracellular Ca2+ content, which bear significant correlation in diabetic and diabetic dyslipidemic subjects. Therefore, dielectric parameters of PBMCs in diabetic-dyslipidemic challenges may led to interesting correlation opening the possibility of identifying crucial signature biomarkers. PMID- 29029879 TI - Reduced renal function in patients with Myotonic Dystrophy type 1 and the association to CTG expansion and other potential risk factors for chronic kidney disease. AB - Myotonic dystrophy type 1 (DM1) affects several organs. Disease severity and age at onset are correlated to the CTG repeat expansion. The aim of this study was to assess renal function and the association to numbers of CTG repeat expansion in patients with DM1. Ninety-eight patients with DM1 were included. Glomerular filtration rate (measured GFR) was measured using iohexol clearance. Data on CTG repeats were available in 83/98 (85%) patients. The overall mGFR was 74 (16) ml/min/1.73 m2 (range 38-134). Sixty-four patients (69%) had a mild and sixteen patients (17%) a moderate decrease in renal function (mGFR 60-89 and 30-59 ml/min/1.73 m2, respectively). No correlations were found between CTG repeats and mGFR (r = 0.10, p = 0.4) or between CTG repeats and serum cystatin C (r = 0.12, p = 0.29). CTG repeats was positively correlated to creatinine-based estimates of GFR (eGFR) (modified diet in renal disease r = 0.49, p < 0.001, CKD-EPI creatinine equation; r = 0.50, p < 0.001), but analyses using Structural Equation Modeling showed no correlation. The correlation was explained by an indirect effect via serum creatinine and skeletal muscle mass index. In conclusion, patients with DM1 seem to have a slight decrease in renal function but there is no association between renal function and the number of CTG repeats, a marker of disease severity. PMID- 29029880 TI - Open versus endovascular repair of ruptured abdominal aortic aneurysms: What have we learned after more than 2 decades of ruptured endovascular aneurysm repair? AB - BACKGROUND: Ruptured abdominal aortic aneurysm is one of the most difficult clinical problems in surgical practice, with extraordinarily high morbidity and mortality. During the past 23 years, the literature has become replete with reports regarding ruptured endovascular aneurysm repair. METHODS: A variety of study designs and databases have been utilized to compare ruptured endovascular aneurysm repair and open surgical repair for ruptured abdominal aortic aneurysm and studies of various designs from different databases have yielded vastly different conclusions. It therefore remains controversial whether ruptured endovascular aneurysm repair improves outcomes after ruptured abdominal aortic aneurysm in comparison to open surgical repair. RESULTS: The purpose of this article is to review the best available evidence comparing ruptured endovascular aneurysm repair and open surgical repair of ruptured abdominal aortic aneurysm, including single institution and multi-institutional retrospective observational studies, large national population-based studies, large national registries of prospectively collected data, and randomized controlled clinical trials. CONCLUSION: This article will analyze the study designs and databases utilized with their attendant strengths and weaknesses to understand the sometimes vastly different conclusions the studies have reached. This article will attempt to integrate the data to distill some of the lessons that have been learned regarding ruptured endovascular aneurysm repair and identify ongoing needs in this field. PMID- 29029881 TI - Comparison of self-gripping mesh and sutured mesh in open inguinal hernia repair: A meta-analysis of long-term results. AB - BACKGROUND: Complications after inguinal hernioplasty pose a significant burden on individual patients and society because of high numbers of repair procedures. Recently, the long-term results of a self-gripping ProGrip mesh for open inguinal hernia repair have become available. The aim of this meta-analyses was to compare these long-term results with the results of a Lichtenstein hernioplasty with a sutured mesh focusing on chronic pain, recurrence rate, foreign body sensation, and operation duration. METHODS: A systematic review of the literature was undertaken to identify randomized controlled trials comparing open inguinal hernia repair with a self-gripping ProGrip mesh and a conventional Lichtenstein hernioplasty. RESULTS: In the present meta-analysis, the outcomes of 10 randomized controlled trials enrolling 2,541 patients were pooled. The mean follow-up was 24 months (range 6-72 months). There was no significant difference in the incidence of chronic pain (odds ratio = 0.93; 95% confidence interval, 0.74-1.18), recurrence (odds ratio = 1.34; 95% confidence interval, 0.82-2.19), or foreign body sensation (odds ratio = 0.82; 95% confidence interval, 0.65 1.03), between the self-gripping mesh and sutured mesh group at all follow-up time points. The mean operating time was significantly shorter (odds ratio = 7.58; 95% confidence interval, -9.58 to -5.58) in the self-gripping mesh group. CONCLUSION: The self-gripping mesh has comparable results with a sutured mesh regarding the incidence of chronic postoperative inguinal pain, recurrence and foreign body sensation. However, long-term results still are based on relatively small patient numbers and outcomes measures are heterogenic. The main advantage of the self-gripping mesh is the consistently significantly reduced operation time. PMID- 29029882 TI - Anesthetic considerations in a parturient with renal tubular acidosis and hypothyroidism undergoing cesarean delivery. AB - Renal tubular acidosis, associated with hypothyroidism, is rare. We present the case of a woman with known renal tubular acidosis and treated hypothyroidism who underwent emergency cesarean delivery under uneventful combined spinal-epidural anesthesia. The rationale for choosing the anesthetic technique and the potential risks associated with anesthesia and renal tubular acidosis are discussed. PMID- 29029883 TI - Brain sexual differentiation and effects of cross-sex hormone therapy in transpeople: A resting-state functional magnetic resonance study. AB - OBJECTIVES: It is hypothesized that transpeople show sex-atypical differentiation of the brain. Various structural neuroimaging studies provide support for this notion, but little is known about the sexual differentiation of functional resting-state networks in transpeople. In this study we therefore aimed to determine whether brain functional connectivity (FC) patterns in transpeople are sex-typical or sex-atypical, before and after the start of cross-sex hormone therapy (CHT). METHODS: We acquired resting-state functional magnetic resonance data in 36 transpeople (22 with female sex assigned at birth), first during gonadal suppression, and again four months after start of CHT, and in 37 cisgender people (20 females), both sessions without any hormonal intervention. We used independent component analysis to identify the default mode network (DMN), salience network (SN), and left and right working memory network (WMN). These spatial maps were used for group comparisons. RESULTS: Within the DMN, SN, and left WMN similar FC patterns were found across groups. However, within the right WMN, cisgender males showed significantly greater FC in the right caudate nucleus than cisgender females. There was no such sex difference in FC among the transgender groups and they did not differ significantly from either of the cisgender groups. CHT (in transgender participants) and circulating sex steroids (in cisgender participants) did not affect FC. CONCLUSION: Our findings may suggest that cisgender males and females experience a dissimilar (early) differentiation of the right WMN and that such differentiation is less pronounced in transpeople. PMID- 29029885 TI - Cost-Effectiveness of Thoracic Radiation Therapy for Extensive-Stage Small Cell Lung Cancer Using Evidence From the Chest Radiotherapy Extensive-Stage Small Cell Lung Cancer Trial (CREST). AB - PURPOSE: The Chest Radiotherapy Extensive-Stage Small Cell Lung Cancer Trial (CREST) showed that adding thoracic radiation therapy (TRT) to the standard treatment (ST) paradigm of chemotherapy and prophylactic cranial irradiation improves overall survival and progression-free survival (PFS) in patients with extensive-stage small cell lung cancer (ES-SCLC). We evaluated the cost effectiveness of adding TRT to ST in ES-SCLC patients. METHODS AND MATERIALS: A cost-utility analysis was performed comparing TRT plus ST versus ST alone. The base-case time horizon was 24 months, consistent with the maximum PFS reported in the CREST. Overall survival was partitioned into 2 health states: PFS and postprogression survival. The proportion of patients in each health state over time was estimated by fitting parametric probability distributions to the CREST survival data. Costs were from a US health care payer perspective, and utilities were derived from the literature. Incremental cost-effectiveness ratios (ICERs) were calculated per quality-adjusted life-year (QALY) using a 3% discount rate. Sensitivity analyses addressed uncertainty in key variables. RESULTS: In the base case analysis, adding TRT to ST was both cost saving and more effective, thereby strongly dominating ST alone. At willingness-to-pay thresholds of $50,000/QALY, $100,000/QALY, and $200,000/QALY, TRT was preferred 68%, 81%, and 96% of the time, respectively. In the lifetime scenario analysis, the TRT ICER increased to $194,726/QALY. CONCLUSIONS: By use of the actual follow-up interval reported in the CREST, adding TRT to ST strongly dominates a strategy of ST alone in ES-SCLC patients. Since the long-term survival benefit of TRT is small relative to ongoing costs of progressive metastatic disease, we estimate less favorable ICERs for TRT over a lifetime horizon. PMID- 29029884 TI - Identification of ATIC as a Novel Target for Chemoradiosensitization. AB - PURPOSE: Mutations in the gene encoding 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase/IMP cyclohydrolase (ATIC), a bifunctional enzyme that catalyzes the final 2 steps of the purine de novo biosynthetic pathway, were identified in a subject referred for radiation sensitivity testing. Functional studies were performed to determine whether ATIC inhibition was radiosensitizing and, if so, to elucidate the mechanism of this effect and determine whether small molecule inhibitors of ATIC could act as effective radiosensitizing agents. METHODS AND MATERIALS: Both small interfering RNA knockdown and small molecule inhibitors were used to inactivate ATIC in cell culture. Clonogenic survival assays, the neutral comet assay, and gammaH2AX staining were used to assess the effects of ATIC inhibition or depletion on cellular DNA damage responses. RESULTS: Depletion of ATIC or inhibition of its transformylase activity significantly reduced the surviving fraction of cells in clonogenic survival assays in multiple cancer cell lines. In the absence of ionizing radiation exposure, ATIC knockdown or chemical inhibition activated cell cycle checkpoints, shifting cells to the more radiosensitive G2/M phase of the cell cycle, and depleted cellular adenosine triphosphate but did not result in detectable DNA damage. Cells in which ATIC was knocked down or inhibited and then treated with ionizing radiation displayed increased numbers of DNA double-strand breaks and a delay in the repair of those breaks relative to irradiated, but otherwise untreated, controls. Supplementation of culture media with exogenous adenosine triphosphate ameliorated the DNA repair phenotypes. CONCLUSIONS: These findings implicate ATIC as an effective, and previously unrecognized, target for chemoradiosensitization and, more broadly, suggest that purine levels in cells might have an underappreciated role in modulating the efficiency of DNA damage responses that could be exploited in radiosensitizing strategies. PMID- 29029886 TI - Heterogeneity in Treatment Response of Spine Metastases to Spine Stereotactic Radiosurgery Within "Radiosensitive" Subtypes. AB - PURPOSE: To characterize outcomes of metastatic colorectal and non-small cell lung cancer (NSCLC) histologies, compared with other radiosensitive histologies, treated with spine stereotactic radiosurgery with regard to local control, overall survival, and predictors of response. METHODS AND MATERIALS: A total of 127 patients with 148 spine stereotactic radiosurgery-treated metastatic lesions at our institution between 2003 and 2013 were reviewed. We assessed clinical endpoints in relation to histologic type, including local control (LC) and overall survival (OS), using univariate and multivariate analyses. RESULTS: For all patients, the 1- and 2-year actuarial rates for LC were 82.6% and 75.8%, and rates for OS were 72.9% and 51.5% respectively. Among tumor histologies, 1-year cumulative incidence rates of local failure for thyroid, breast, lung, and colon cancer were 8.7%, 7.0%, 26.6%, and 39.6%, respectively. When analyzed together, NSCLC and colorectal cancers had significantly greater cumulative incidence rates at 1 and 2 years (30.4% and 38.7%, respectively) than other histologies (8.0% and 14.1% respectively, P=.0008). Non-small cell lung cancer/colorectal tumor status was a significant predictor of local failure in a competing risk univariate model (hazard ratio 2.12, 95% confidence interval 1.07-4.17, P=.03) and multivariate model (hazard ratio 2.35, 95% confidence interval 1.12-4.92, P=.024). CONCLUSIONS: Spine stereotactic radiosurgery is an effective strategy in achieving local control of spine metastases, particularly among radiosensitive histologies. However, a subset of these classically defined histologies (NSCLC and colorectal) has a propensity toward local failure. In addition to resulting in poorer OS outcomes, the poor LC rates seen in NSCLC and colorectal cancers in this study are more consistent with a radioresistant phenotype, suggesting the need for optimized dosing regimens in this subgroup. PMID- 29029887 TI - Long-Term Clinical Safety of High-Dose Proton Radiation Therapy Delivered With Pencil Beam Scanning Technique for Extracranial Chordomas and Chondrosarcomas in Adult Patients: Clinical Evidence of Spinal Cord Tolerance. AB - PURPOSE: To assess the radiation dose tolerance of the spinal cord by reviewing our institutional experience regarding the incidence of radiation-induced spinal cord toxicity after high-dose pencil beam scanning proton therapy (PBSPT). METHODS AND MATERIALS: Seventy-six patients (median age 53 years; range, 23-79 years) treated for spinal chordoma (n=55) or chondrosarcoma (n=21) met the following criteria and were retrospectively analyzed: PBSPT only, no reirradiation or concomitant chemotherapy, maximum dose (Dmax) to the spinal cord of >=45 Gy(relative biological effectiveness [RBE]), >=18 years of age, and follow-up of >=12 months. The delivered dose was 59.4 to 75.2 Gy(RBE) [median 73.9 Gy(RBE)] delivered with conventional fractionation between 2000 and 2014. The Dmax, D2%, and V40-V60 of the surface (sSC) and center (cSC) of the spinal cord were recorded. Toxicity was scored according to the Common Terminology Criteria for Adverse Events, version 4.03. RESULTS: Median follow-up was 65.5 months (range, 13-173 months). Patients received a mean Dmax and D2% to the sSC of 59.0 (median 58.7; range, 48.3-75.9) and 55.3 (median 52.7; range, 43.1-73.8) Gy(RBE), respectively. The corresponding values for the cSC were 52.3 (median 52.7; range, 32.3-73.3) and 51.1 (median 52.0; range, 25.3-73.1) Gy(RBE), respectively. Four patients (5%) developed acute radiation-induced neurotoxicity (grade [G] 1, n=1; G2, n=3). Twelve patients (16%) experienced late neurologic toxicities (G1, n=7; G2, n=4; G4, n=1). One patient with a history of pre-PBSPT symptomatic spinal cord compression redeveloped tetraplegia (G4) after receiving a Dmax of 57.8 Gy(RBE) to the sSC and 54.1 Gy(RBE) to the cSC. No significant correlation was found between sSC Dmax and D2%, cSC Dmax and D2%, or the length of CTV and toxicity. CONCLUSIONS: High-dose conformal PBSPT may be delivered safely in close proximity to the spinal cord with minimal neurotoxicity. Dose constraints of 64 Gy(RBE) as D2% for the sSC and 54 Gy(RBE) for the cSC seem appropriate for clinical use. PMID- 29029888 TI - Reirradiation Using Permanent Interstitial Brachytherapy: A Potentially Durable Technique for Salvaging Recurrent Pelvic Malignancies. AB - PURPOSE: To present a time-to-failure (TTF) analysis for all patients treated with permanent interstitial brachytherapy (PIB) at our institution, with additional analyses to correlate successful reirradiation and to identify the frequency of severe grade 3 to 4 toxicity. METHODS AND MATERIALS: Forty-two previously irradiated patients received curative or palliative intent PIB for a recurrent pelvic malignancy between January 2009 and August 2016. Minimum follow up was 6 months after the PIB procedure. All patients had a biopsy-proven recurrence and were treated using PIB alone (n=32) or in combination with a short course of additional radiation therapy (n=10). Competing risk analyses were performed to assess the risk of failures in the presence of death without failure. Exploratory analyses were performed for factors related to failure using competing risk analyses and the Gray statistic. RESULTS: A total of 61 PIB implants were performed among 42 patients with a median follow-up of 16.3 months. Fifty-two implants were performed as the first salvage reirradiation to a solitary recurrence (8 patients had more than 1 lesion); the success rate for initial reirradiation using PIB was 73% (38 cases out of 52), and the median TTF was not reached. Nine patients underwent a second repeat PIB to the same recurrence as a form of salvage; 3 (33%) remain without evidence of recurrence. The median TTF after second salvage was 7.7 months. Even with the limited sample size, prolonged TTF was marginally associated with definitive intent (P=.07) and the extent of disease at the time of PIB (P=.08). Grade 3+ toxicities were seen in 8 patients (16.7%). CONCLUSIONS: Permanent interstitial brachytherapy is a feasible and potentially durable treatment modality that can be used to curatively salvage selected recurrent pelvic malignancies in a previously irradiated field. PMID- 29029889 TI - Brachytherapy for Intermediate-Risk Prostate Cancer, Androgen Deprivation, and the Risk of Death. AB - PURPOSE: To determine whether the use of 6 months' adjuvant androgen deprivation therapy (ADT) combined with brachytherapy for intermediate-risk (IR) and low-risk (LR) prostate cancer is associated with an increased risk of cardiovascular death. METHODS AND MATERIALS: This is a retrospective analysis of prospectively collected data from men treated in the British Columbia Cancer Agency brachytherapy program from 1998 to 2012. Men were categorized by risk group and ADT use. Cardiac and other comorbidities were recorded and compared between groups. Biochemical control (Phoenix definition, nadir + 2 ng/mL) was ascertained. Overall, prostate, cardiac, and other-cause mortality were analyzed by the Kaplan-Meier method and Fine and Gray competing-risk analysis. RESULTS: The study included 3155 men (1142 with LR cancer and 2013 with IR cancer) who have been followed up for a median of 7.9 years. ADT was received by 47% of IR patients and 37% of LR patients for a median of 6 months. Men with IR cancer were older and had more cardiac and other comorbidities than LR cases (P<.01). Biochemical control improved from 86% to 89% at 10 years with the use of ADT (P=.006). Overall survival was inferior in patients receiving ADT (84% vs 86% at 10 years, P=.0274), and on competing-risk analysis, cardiovascular mortality in patients receiving ADT was higher in IR cases, 5.2% versus 3.6% at 10 years (P=.0493), but not in LR cases. Multivariate analysis confirmed increased cardiac mortality in IR patients receiving ADT (hazard ratio, 1.95 [95% confidence interval, 1.15-3.34]; P=.014). CONCLUSIONS: ADT adds little meaningful benefit in terms of biochemical control for IR men treated with low-dose-rate brachytherapy but likely decreases overall survival because of increased cardiac mortality. IR patients were older and had more cardiac risk factors than LR prostate cases; this may be because of a screening effect, case selection, or common etiologic cause. PMID- 29029891 TI - Imaging Findings Within the First 12 Months of Hepatocellular Carcinoma Treated With Stereotactic Body Radiation Therapy. AB - PURPOSE: To correlate the imaging findings of treated hepatocellular carcinoma (HCC) after stereotactic body radiation therapy (SBRT) with explant pathology and alpha-fetoprotein (AFP) response. METHODS AND MATERIALS: From 2007 to 2015, of 146 patients treated with liver SBRT for Barcelona Clinic Liver Cancer stage A hepatocellular carcinoma, 10 were identified with inclusion criteria and had regular interval follow-up magnetic resonance imaging/triple phase computed tomography and explant pathology or declining AFP values for radiology-pathology response correlation. Reference standards for successful response were >90% necrosis on explant pathology or pretreatment AFP >75 ng/mL normalizing to <10 ng/mL within 1 year after SBRT without other treatment. Subjects were treated with 24 to 50 Gy in 3 to 5 fractions. Multiphasic magnetic resonance imaging or computed tomography performed at 3, 6, 9, and 12 months after SBRT was compared with pretreatment imaging by 2 expert radiologists. Descriptive statistics were calculated. RESULTS: There were 10 subjects with 10 treated HCCs, classified as 3 Organ Procurement and Transplantation Network (OPTN) 5a, 4 OPTN 5b, and 3 OPTN 5x. All had successfully treated HCCs, according to explant pathology or declining AFP. Four of 10 HCCs had persistent central arterial hyperenhancement 3 to 12 months after SBRT; persistent wash-out was common up to 12 months (9 of 10). Of 10 treated HCCs, 9 exhibited decreased size at 12 months. Liver parenchyma adjacent to the lesion showed early (3-6 months) hyperemia followed by late (6-12 months) capsular retraction and delayed enhancement. No patient had a significant decline in liver function. CONCLUSIONS: In the absence of increasing size, persistent central arterial hyperenhancement and wash-out can occur within the first 12 months after SBRT in successfully treated HCCs and may not represent residual viable tumor. Liver parenchyma adjacent to the treated lesion showed inflammation followed by fibrosis, without significant change in hepatic function. Until a radiologic signature of tumor control is determined, freedom from local progression seems to be the best measure of HCC control after SBRT. PMID- 29029893 TI - The prevalence of sarcopenia is markedly increased in patients with intestinal failure and associates with several risk factors. AB - BACKGROUND & AIMS: Intestinal insufficiency and intestinal failure are conditions associated with malabsorption of micro- and macronutrients. Consequently, malnutrition and ensuing alterations in body composition are common in this context and patients may have an increased risk of progressive loss of skeletal muscle mass and function (i.e. sarcopenia). We investigated the prevalence of sarcopenia in patients with intestinal insufficiency and intestinal failure and identified associated risk factors. METHODS: This was a cross-sectional study including 113 clinically stable outpatients with intestinal insufficiency or intestinal failure. Body composition was assessed using bioelectrical impedance analysis and muscle function (strength or performance) using a handheld dynamometer and a timed up-and-go test. Sarcopenia was classified using the European Working Group on Sarcopenia in Older People criteria. Several parameters, including smoking, alcohol, and concurrent morbidities, were analyzed for association with sarcopenia. RESULTS: The prevalence of sarcopenia was 53.1% (95% CI; 43.8 to 62.2) in the combined patient group. In patients with intestinal failure the prevalence of sarcopenia was 72.7% (95% CI; 59.3 to 83.0) compared to 34.5% (95% CI; 23.3 to 47.8) in those with intestinal insufficiency (OR 5.07 [95% CI; 2.27 to 11.31]; p < 0.001). Excessive alcohol consumption (OR 7.69 [95% CI; 1.50 to 39.34]; p = 0.014), intestinal failure (OR 4.16 [95% CI; 1.69 to 10.28]; p = 0.002), and inflammatory activity (OR 3.83 [95% CI; 1.06 to 12.84]; p = 0.041), were identified as independent risk factors of sarcopenia. A trend was observed for hypermetabolism in multivariate analysis (OR 7.55 [95% CI; 0.79 to 72.03]; p = 0.079). CONCLUSIONS: Patients with intestinal insufficiency and intestinal failure are at immense risk of developing sarcopenia. Associated risk factors are excessive alcohol consumption, intestinal failure, and inflammatory activity. PMID- 29029892 TI - The expert's guide to mealtime interventions - A Delphi method survey. AB - BACKGROUND: Prevalence of malnutrition and a myriad of barriers to adequate oral diet in hospitalised patients warrants further investment to improve the patient mealtime experience. The aim of this study was to explore barriers and enablers to implementing effective mealtime interventions and develop a process framework to guide clinicians and researchers in the area. MATERIALS AND METHODS: Potential experts in the area of hospital mealtime intervention were identified as having published in this field of work within the Australasian setting. Further information was sought by email and telephone communication on professional background; research experience; interest; and capacity to participate. Recruited participants were surveyed using a modified Delphi method to establish opinion and experience in the area of mealtime interventions. Results were collated and content was coded using a thematic analysis approach by the primary researcher and two additional reviewers. RESULTS: Thirty-two Australian authors in the area of mealtime interventions within the hospital environment were identified from publication. Twenty-one participants were able to be contacted and nineteen of these consented to enrol in the study. Participants included those from a dietetic (n = 14), nursing (n = 4) and medical (n = 1) background. Participants were deemed to have expert knowledge if they had significant involvement in the published research and demonstrated a deep level of understanding of hospital mealtime interventions. All participants provided key insights into barriers to oral intake in the hospital environment and suggestions for interventions to address these barriers. From the survey, an eight step framework to guide mealtime interventions was developed. CONCLUSION: Hospital mealtime interventions are complex processes. Interventions should be implemented after careful consideration of the local context and baseline data; and tailored to address barriers. Roles and responsibilities for nutrition care should be clear and consistent. Implementation planning is recommended to ensure that an ongoing process is in place to engage executive support and staff involvement, foster project team resilience and ensure sustainability of interventions. PMID- 29029890 TI - Radiation Therapy Deficiencies Identified During On-Site Dosimetry Visits by the Imaging and Radiation Oncology Core Houston Quality Assurance Center. AB - PURPOSE: To review the dosimetric, mechanical, and programmatic deficiencies most frequently observed during on-site visits of radiation therapy facilities by the Imaging and Radiation Oncology Core Quality Assurance Center in Houston (IROC Houston). METHODS AND MATERIALS: The findings of IROC Houston between 2000 and 2014, including 409 institutions and 1020 linear accelerators (linacs), were compiled. On-site evaluations by IROC Houston include verification of absolute calibration (tolerance of +/-3%), relative dosimetric review (tolerances of +/-2% between treatment planning system [TPS] calculation and measurement), mechanical evaluation (including multileaf collimator and kilovoltage-megavoltage isocenter evaluation against Task Group [TG]-142 tolerances), and general programmatic review (including institutional quality assurance program vs TG-40 and TG-142). RESULTS: An average of 3.1 deficiencies was identified at each institution visited, a number that has decreased slightly with time. The most common errors are tabulated and include TG-40/TG-142 compliance (82% of institutions were deficient), small field size output factors (59% of institutions had errors >=3%), and wedge factors (33% of institutions had errors >=3%). Dosimetric errors of >=10%, including in beam calibration, were seen at many institutions. CONCLUSIONS: There is substantial room for improvement of both dosimetric and programmatic issues in radiation therapy, which should be a high priority for the medical physics community. Particularly relevant was suboptimal beam modeling in the TPS and a corresponding failure to detect these errors by not including TPS data in the linac quality assurance process. PMID- 29029894 TI - Clemastine fumarate for promotion of optic nerve remyelination. PMID- 29029895 TI - Double-duty solutions for the double burden of malnutrition. PMID- 29029896 TI - Clemastine fumarate as a remyelinating therapy for multiple sclerosis (ReBUILD): a randomised, controlled, double-blind, crossover trial. AB - BACKGROUND: Multiple sclerosis is a degenerative inflammatory disease of the CNS characterised by immune-mediated destruction of myelin and progressive neuroaxonal loss. Myelin in the CNS is a specialised extension of the oligodendrocyte plasma membrane and clemastine fumarate can stimulate differentiation of oligodendrocyte precursor cells in vitro, in animal models, and in human cells. We aimed to analyse the efficacy and safety of clemastine fumarate as a treatment for patients with multiple sclerosis. METHODS: We did this single-centre, 150-day, double-blind, randomised, placebo-controlled, crossover trial (ReBUILD) in patients with relapsing multiple sclerosis with chronic demyelinating optic neuropathy on stable immunomodulatory therapy. Patients who fulfilled international panel criteria for diagnosis with disease duration of less than 15 years were eligible. Patients were randomly assigned (1:1) via block randomisation using a random number generator to receive either clemastine fumarate (5.36 mg orally twice daily) for 90 days followed by placebo for 60 days (group 1), or placebo for 90 days followed by clemastine fumarate (5.36 mg orally twice daily) for 60 days (group 2). The primary outcome was shortening of P100 latency delay on full-field, pattern-reversal, visual-evoked potentials. We analysed by intention to treat. The trial is registered with ClinicalTrials.gov, number NCT02040298. FINDINGS: Between Jan 1, 2014, and April 11, 2015, we randomly assigned 50 patients to group 1 (n=25) or group 2 (n=25). All patients completed the study. The primary efficacy endpoint was met with clemastine fumarate treatment, which reduced the latency delay by 1.7 ms/eye (95% CI 0.5-2.9; p=0.0048) when analysing the trial as a crossover. Clemastine fumarate treatment was associated with fatigue, but no serious adverse events were reported. INTERPRETATION: To our knowledge, this is the first randomised controlled trial to document efficacy of a remyelinating drug for the treatment of chronic demyelinating injury in multiple sclerosis. Our findings suggest that myelin repair can be achieved even following prolonged damage. FUNDING: University of California, San Francisco and the Rachleff Family. PMID- 29029898 TI - Department of Error. PMID- 29029899 TI - Bite it forward ... bite it better? Incisor procumbency and mechanical advantage in the chisel-tooth and scratch-digger genus Ctenomys (Caviomorpha, Rodentia). AB - The subterranean genus Ctenomys (~60 species, ~100-1000g) constructs its burrows by using both forefeet and teeth throughout a wide range of habitats in South America. They show a high variation in the incisors' angle of attack (procumbency) and a mostly conserved skull morphology, not only amongst their congeners, but within the caviomorph rodents. Traditionally, procumbency has been largely related to tooth-digging. Looking for the possible influence of incisor procumbency on the mechanical advantage (MA) of each of the seven jaw adductor muscles in the genus, we examined 165 skulls representing 24 species. We also evaluated the role of two other relevant traits - i.e. mandibular width and diastema length - in jaw biomechanics and the existence of a relationship between procumbency angle and soil hardness. The in- and out-lever arms (Li and Lo) of the involve muscles were determined based on their insertion's 3D-coordinates and integrated to calculate their MA. Interspecific scaling relationships for skull and muscle measurements were analyzed through reduced major axis regression performed with phylogenetically independent standardized contrasts. Although the procumbency angle ranged between ~92.5 degrees (C. mendocinus) and ~107.2 (C. occultus), we found that it was not significantly correlated with the MA of any jaw adductor muscle. This study also showed that the incisor procumbency variation was not associated with the relative rostral length or soil hardness. This result contradicts previous generalizations about a correlation between habitat conditions and the procumbency of the incisors in subterranean rodents. In sum, our results suggest that, within Ctenomys, possessing more procumbent incisors may not represent a biomechanical advantage, but might be beneficial in other aspects related to chisel-tooth digging or food processing behaviors. PMID- 29029900 TI - Teixobactin as a scaffold for unlimited new antimicrobial peptides: SAR study. AB - It looks that a new era of antimicrobial peptides (AMPs) started with the discovery of teixobactin, which is a "head to side-chain" cyclodepsipeptide. It was isolated from a soil gram-negative b-proteobacteria by means of a revolutionary technique. Since there, several groups have developed synthetic strategies for efficient synthesis of this peptide and its analogues as well. Herein, all chemistries reported as well as the biological activity of the analogues are analyzed. Finally, some inputs regarding new trends for the next generation of analogues are discussed. PMID- 29029901 TI - Spectrum of orocutaneous disease associations: Immune-mediated conditions. AB - There are a number of diseases that manifest both on the skin and the oral mucosa, and therefore the importance for dermatologists in clinical practice to be aware of these associations is paramount. In the following continuing medical education series, we outline orocutaneous disease associations with both immunologic and inflammatory etiologies. PMID- 29029902 TI - Spectrum of orocutaneous disease associations: Genodermatoses and inflammatory conditions. AB - The oral cavity and cutaneous organ systems share a close embryologic origin. Therefore, there are numerous dermatologic conditions presenting with concomitant oral findings of which the dermatologist must be aware. The second article in this continuing medical education series reviews inflammatory orocutaneous conditions and a number of genodermatoses. It is essential for dermatologists to be familiar with oral cavity manifestations associated with dermatologic diseases for prompt diagnosis, management, and appropriate referral to stomatology and dentistry. PMID- 29029903 TI - Folate and phototherapy: What should we inform our patients? AB - BACKGROUND: Ultraviolet (UV) degradation of folate has been studied in vitro and in vivo, but comprehensive reviews of the subject and recommendations for supplementing folate are lacking, especially for women of childbearing age, in whom decreases in folate predisposes newborns to neural tube defects. OBJECTIVE: We reviewed the effects of phototherapy on folate and provide a recommendation for women of childbearing age on phototherapy. METHODS: PubMed was searched for in vivo studies comparing folate levels before and after phototherapy. RESULTS: There is no evidence of decreased folate levels after UVA exposure. Decreased folate levels after sun exposure were limited to subjects taking folate supplements. Studies using narrowband UVB showed mixed results, potentially explained by dose-dependent degradation of folate; exposure >40 J/cm2 cumulatively and >2 J/cm2 per treatment were associated with 19%-27% decreases in serum folate levels, while lower doses did not affect folate levels. LIMITATIONS: Extensive variability in results from studies and lack of considering confounders. CONCLUSIONS: We recommend all women of childbearing age on phototherapy take 0.8 mg/day of folate supplements, as suggested by current guidelines for women of childbearing age, to reduce the risk of neural tube defects in unplanned pregnancy. PMID- 29029904 TI - Incidental skin malignancies in teledermatology and in-person cohorts in the Veterans Affairs Health System. PMID- 29029905 TI - Perioperative complications with new oral anticoagulants dabigatran, apixaban, and rivaroxaban in Mohs micrographic surgery: A retrospective study. PMID- 29029906 TI - High prevalence of combination tanning among undergraduates: Survey at a southeastern US university. PMID- 29029907 TI - Acne, sexual orientation, and mental health among young adults in the United States: A population-based, cross-sectional study. PMID- 29029908 TI - Vancomycin and DRESS: A retrospective chart review of 32 cases in Los Angeles, California. PMID- 29029909 TI - Implementation of a dermatology teletriage system to improve access in an underserved clinic: A retrospective study. PMID- 29029910 TI - Assessment of dermatology clinic resources at safety-net hospitals: Results from a national survey. PMID- 29029911 TI - Oral tofacitinib monotherapy in Korean patients with refractory moderate-to severe alopecia areata: A case series. PMID- 29029912 TI - Prevalence of pediatric alopecia areata among 572,617 dermatology patients. PMID- 29029913 TI - Lack of an association between alopecia areata and visceral or hematopoietic cancers. PMID- 29029914 TI - Recurrence of genital aphthosis in girls: A retrospective analysis. PMID- 29029915 TI - Frequent skin examinations in patients with actinic keratoses: Ethical, financial, and moral implications. PMID- 29029916 TI - The specimen that did not survive processing: Ethical considerations pertaining to open disclosure. PMID- 29029917 TI - Dihydroxyacetone and sunless tanning: Knowledge, myths, and current understanding. PMID- 29029918 TI - The demand for skin biopsy from a patient with delusional parasitosis. PMID- 29029919 TI - The doll hairline: A clue for the diagnosis of frontal fibrosing alopecia. PMID- 29029920 TI - Mitigation or prevention of mild hair dye contact dermatitis after pretreatment with clobetasol foam. PMID- 29029921 TI - The modified purse-string suture: A useful technique for the repair of cutaneous surgical wounds. PMID- 29029922 TI - Submitting tangential nail-matrix specimens. PMID- 29029923 TI - Subcutaneous island flap on the nasal ala. PMID- 29029924 TI - Smoke-evacuating cautery pencils for dermatologic surgery. PMID- 29029925 TI - Does the dermatology standardized letter of recommendation alter applicants' chances of matching into residency? PMID- 29029926 TI - Comment on "Psychocutaneous disease: Clinical perspectives". PMID- 29029927 TI - Onychophagia and onychotillomania can be effectively managed. PMID- 29029928 TI - Recurrence, evolution, and re-excision of moderately dysplastic nevi. PMID- 29029929 TI - Approach to moderately dysplastic nevi with positive histologic margins. PMID- 29029930 TI - Histopathologic features of melanoma in difficult-to-diagnose lesions: A case control study; methodological issues. PMID- 29029931 TI - Reply to: "Histopathologic features of melanoma in difficult-to-diagnose lesions: A case-control study; methodological issues". PMID- 29029932 TI - Quantitative analysis of O-GlcNAcylation in combination with isobaric tag labeling and chemoenzymatic enrichment. AB - Protein O-GlcNAcylation regulates various biological processes, and is associated with several diseases. Therefore, the development of quantitative proteomics is important for understanding the mechanisms of O-GlcNAc-related diseases. We previously reported selective enrichment of O-GlcNAcylated peptides, which provided high-selectivity and effective release by a novel thiol-alkyne and thiol disulfide exchange. Here, we describe a new approach using initial isobaric tag labeling for relative quantification followed by enrichment and beta elimination/Michael addition with dithiothreitol for identification of both proteins and modification sites. The approach was validated using model proteins and peptides. This novel strategy could be used for quantitative O-GlcNAcome of biological samples. PMID- 29029934 TI - Ability of pulse wave transit time to detect changes in stroke volume and to estimate cardiac output compared to thermodilution technique in isoflurane anaesthetised dogs. AB - OBJECTIVE: To evaluate the ability of pulse wave transit time (PWTT) to detect changes in stroke volume (SV) and to estimate cardiac output (CO) compared with the thermodilution technique in isoflurane-anaesthetized dogs. STUDY DESIGN: Prospective, experimental study. ANIMALS: Eight adult laboratory dogs. METHODS: The dogs were anaesthetized with isoflurane and mechanically ventilated. Reference CO (TDCO) was measured via a pulmonary artery catheter using the thermodilution technique and reference SV (TDSV) was calculated. PWTT was calculated as the time from the electrocardiogram R-wave peak to the rise point of the pulse oximeter wave. Estimated CO (esCO) was derived from PWTT after calibration with arterial pulse pressure (both non-invasive and invasive methods) and TDCO. Haemodynamic changes were induced by administration of phenylephrine (vasoconstriction), high isoflurane (vasodilatation and negative inotropy) and dobutamine (vasodilatation and positive inotropy). Trending between percentage change in PWTT and TDSV was assessed using concordance analysis and receiver operator characteristic (ROC) curve. The agreement between esCO and TDCO was evaluated using the Bland-Altman method. RESULTS: The direction of percentage change between consecutive PWTT and the corresponding TDSV showed a concordance rate of 95%, with correlation coefficients of -0.86 (p<0.001). Area under the ROC curve for the change in PWTT to detect 15% change in TDSV was 0.91 (p<0.001). TDCO compared with esCO calibrated with invasive and non-invasive blood pressure showed a bias (precision of agreement) of 0.58 (1.54) and 0.57 (1.59) L minute-1 with a percentage error of +/-61% and +/-63%, respectively. CONCLUSIONS AND CLINICAL RELEVANCE: In isoflurane-anaesthetized dogs, PWTT showed a good trending ability to detect 15% changes in SV. This technique is easy to use, inexpensive, non-invasive and could become routine anaesthetic monitoring. However, the agreement between absolute esCO and TDCO was unacceptable. PMID- 29029933 TI - Highly potent and selective NaV1.7 inhibitors for use as intravenous agents and chemical probes. AB - The discovery and selection of a highly potent and selective NaV1.7 inhibitor PF 06456384, designed specifically for intravenous infusion, is disclosed. Extensive in vitro pharmacology and ADME profiling followed by in vivo preclinical PK and efficacy model data are discussed. A proposed protein-ligand binding mode for this compound is also provided to rationalise the high levels of potency and selectivity over inhibition of related sodium channels. To further support the proposed binding mode, potent conjugates are described which illustrate the potential for development of chemical probes to enable further target evaluation. PMID- 29029897 TI - Worldwide trends in body-mass index, underweight, overweight, and obesity from 1975 to 2016: a pooled analysis of 2416 population-based measurement studies in 128.9 million children, adolescents, and adults. AB - BACKGROUND: Underweight, overweight, and obesity in childhood and adolescence are associated with adverse health consequences throughout the life-course. Our aim was to estimate worldwide trends in mean body-mass index (BMI) and a comprehensive set of BMI categories that cover underweight to obesity in children and adolescents, and to compare trends with those of adults. METHODS: We pooled 2416 population-based studies with measurements of height and weight on 128.9 million participants aged 5 years and older, including 31.5 million aged 5-19 years. We used a Bayesian hierarchical model to estimate trends from 1975 to 2016 in 200 countries for mean BMI and for prevalence of BMI in the following categories for children and adolescents aged 5-19 years: more than 2 SD below the median of the WHO growth reference for children and adolescents (referred to as moderate and severe underweight hereafter), 2 SD to more than 1 SD below the median (mild underweight), 1 SD below the median to 1 SD above the median (healthy weight), more than 1 SD to 2 SD above the median (overweight but not obese), and more than 2 SD above the median (obesity). FINDINGS: Regional change in age-standardised mean BMI in girls from 1975 to 2016 ranged from virtually no change (-0.01 kg/m2 per decade; 95% credible interval -0.42 to 0.39, posterior probability [PP] of the observed decrease being a true decrease=0.5098) in eastern Europe to an increase of 1.00 kg/m2 per decade (0.69-1.35, PP>0.9999) in central Latin America and an increase of 0.95 kg/m2 per decade (0.64-1.25, PP>0.9999) in Polynesia and Micronesia. The range for boys was from a non significant increase of 0.09 kg/m2 per decade (-0.33 to 0.49, PP=0.6926) in eastern Europe to an increase of 0.77 kg/m2 per decade (0.50-1.06, PP>0.9999) in Polynesia and Micronesia. Trends in mean BMI have recently flattened in northwestern Europe and the high-income English-speaking and Asia-Pacific regions for both sexes, southwestern Europe for boys, and central and Andean Latin America for girls. By contrast, the rise in BMI has accelerated in east and south Asia for both sexes, and southeast Asia for boys. Global age-standardised prevalence of obesity increased from 0.7% (0.4-1.2) in 1975 to 5.6% (4.8-6.5) in 2016 in girls, and from 0.9% (0.5-1.3) in 1975 to 7.8% (6.7-9.1) in 2016 in boys; the prevalence of moderate and severe underweight decreased from 9.2% (6.0-12.9) in 1975 to 8.4% (6.8-10.1) in 2016 in girls and from 14.8% (10.4-19.5) in 1975 to 12.4% (10.3-14.5) in 2016 in boys. Prevalence of moderate and severe underweight was highest in India, at 22.7% (16.7-29.6) among girls and 30.7% (23.5-38.0) among boys. Prevalence of obesity was more than 30% in girls in Nauru, the Cook Islands, and Palau; and boys in the Cook Islands, Nauru, Palau, Niue, and American Samoa in 2016. Prevalence of obesity was about 20% or more in several countries in Polynesia and Micronesia, the Middle East and north Africa, the Caribbean, and the USA. In 2016, 75 (44-117) million girls and 117 (70-178) million boys worldwide were moderately or severely underweight. In the same year, 50 (24-89) million girls and 74 (39-125) million boys worldwide were obese. INTERPRETATION: The rising trends in children's and adolescents' BMI have plateaued in many high-income countries, albeit at high levels, but have accelerated in parts of Asia, with trends no longer correlated with those of adults. FUNDING: Wellcome Trust, AstraZeneca Young Health Programme. PMID- 29029935 TI - Review: The relationship of hemoglobin A1c to postoperative surgical risk with an emphasis on joint replacement surgery. AB - Patients with diabetes mellitus are known to have a high risk of postoperative complications, including infections, impaired wound healing, cardiovascular events, venous thromboembolism, and mortality. Because hyperglycemia has been thought to mediate this risk, there is a clinical propensity for improving glycemic control, as assessed by hemoglobin A1c (HbA1c) level, prior to proceeding with elective surgery, particularly joint replacement surgery. However, it is not established whether chronic poor glycemic control, indicated by elevated HbA1c levels, predicts increased risk of postoperative complications. The benefit of improving glycemic control must be weighed against risks of delaying necessary elective surgery, such as joint replacement surgery, which risks may include negative impact on long-term glycemic control. Thus, we review the current evidence to determine the relationship between HbA1c and postoperative surgical risk, especially on joint replacement surgery. PMID- 29029936 TI - Excellence, Like Beauty, May Be in the Eyes of the Beholder. PMID- 29029937 TI - Neoadjuvant trials can accelerate research on novel systemic treatment modalities in cancer of the uterine cervix. PMID- 29029938 TI - Dengvaxia sensitizes seronegatives to vaccine enhanced disease regardless of age. AB - During a large scale clinical efficacy trial of the Sanofipasteur live-attenuated tetravalent dengue vaccine (Dengvaxia), features of hospitalized disease accompanying dengue infections in placebo recipients were closely similar to those in vaccinated children. However, the age specific hospitalization curves for these two populations differed. The curve for children vaccinated at ages 2 16 years closely resembled the 1981 age specific hospitalization rate curve for Cuban children infected with DENV 2 who were sensitized by a prior DENV 1 infection. The corresponding age specific hospitalization curve for placebos experiencing heterotypic secondary dengue infections peaked at age, 9-11 years. These differing epidemiological features support the conclusion that antibody dependent enhanced (ADE) dengue disease occurred in seronegatives who were sensitized by vaccine. As hospitalizations continue to occur in all age groups Dengvaxia consumers should be warned that sensitized vaccinated seronegatives will experience enhanced dengue disease into the forseeable future. PMID- 29029940 TI - Antibody-dependent phagocytosis (ADP) responses following trivalent inactivated influenza vaccination of younger and older adults. AB - Globally the most commonly utilised immunisation against influenza is the trivalent inactivated influenza vaccine (TIV) derived from an A/H1N1, an A/H3N2 and aB type influenza virus. Vaccine effectiveness of TIV varies year to year, depending on how well antigenically matched the strains in the vaccine are compared to circulating strains [1,2]. Moreover, vaccine effectiveness can vary within certain subpopulations such as HIV-positive, young children and the elderly. Decreased vaccine effectiveness in the elderly is associated with impaired Ab production, as measured by standard hemagglutination inhibition (HAI) assays. We investigated the level of Antibody Dependent Phagocytosis (ADP) mediating Abs induced by the 2008-TIV in healthy Australian adults aged over and under 60years to determine if this immune function was also reduced in the elderly. We utilised an ADP assay that measures the uptake of IgG-opsonised HA coated fluorescent microspheres by a monocytic cell line. We also measured HA specific Abs that are close enough to bind to dimeric FcgammaRIIa ectodomains in an ELISA-based assay. Furthermore, we compared the extent of cross-reactive recognition of diverse influenza strains by ADP-mediating Abs found in pre- and post-vaccination sera in both of these groups. We found that young adults and older adults mounted similar ADP activity against HAs contained in the 2008-TIV, despite older adults have diminished HI responses. The level of cross-reactive antibodies against other HAs was limited in both groups. We conclude that seasonal influenza vaccination elicits limited cross-reactive ADP to HA in both young and older adults. New influenza vaccination strategies that elicit cross reactive and polyfunctional antibodies are needed. PMID- 29029939 TI - A novel therapeutic vaccine composed of a rearranged human papillomavirus type 16 E6/E7 fusion protein and Fms-like tyrosine kinase-3 ligand induces CD8+ T cell responses and antitumor effect. AB - The development of cervical cancer is mainly caused by infection with high risk genotypes of human papillomavirus, particularly type 16 (HPV16), which accounts for more than 50% of cervical cancer. The two early viral oncogenes, E6 and E7, are continuously expressed in cervical cancer cells and are necessary to maintain the malignant cellular phenotype, thus providing ideal targets for immunotherapy of cervical cancer. In this study, a novel vaccine strategy was developed based on a rationally shuffled HPV16 E6/E7 fusion protein, the addition of Fms-like tyrosine kinase-3 ligand (Flt3L) or the N domain of calreticulin (NCRT), and the usage of a CpG adjuvant. Four recombinant proteins were constructed: m16E6E7 (mutant E6/E7 fusion protein), rm16E6E7 (rearranged mutant HPV16 E6/E7 fusion protein), Flt3L-RM16 (Flt3L fused to rm16E6E7), and NCRT-RM16 (NCRT fused to rm16E6E7). Our results suggest that Flt3L-RM16 was the most potent of these proteins in terms of inducing E6- and E7-specific CD8+ T cell responses. Additionally, Flt3L-RM16 significantly induced regression of established E6/E7 expressing TC-1 tumors. Higher doses of Flt3L-RM16 trended toward higher levels of antitumor activity, but these differences did not reach statistical significance. In summary, this study found that Flt3L-RM16 fusion protein is a promising therapeutic vaccine for immunotherapy of HPV16-associated cervical cancer. PMID- 29029941 TI - Timeliness of childhood vaccination in the Federated States of Micronesia. AB - BACKGROUND: Vaccination coverage is typically measured as the proportion of individuals who have received recommended vaccine doses by the date of assessment. This approach does not provide information about receipt of vaccines by the recommended age, which is critical for ensuring optimal protection from vaccine-preventable diseases (VPDs). OBJECTIVE: To assess vaccination timeliness in the Federated States of Micronesia (FSM), and the projected impact of suboptimal vaccination in the event of an outbreak. METHODS: Timeliness of the 4th dose of diphtheria, tetanus, and acellular pertussis vaccine (DTaP) and 1st dose of measles, mumps, and rubella vaccine (MMR) among children 24-35 months was assessed in FSM. Both doses are defined as on time if administered from 361 through 395 days in age. Timeliness was calculated by one-way frequency analysis, and dose delays, measured in months after recommended age, were described using inverse Kaplan-Meier analysis. A time-series susceptible-exposed-infected recovery (TSEIR) model simulated measles outbreaks in populations with on time and late vaccination. RESULTS: Total coverage for the 4th dose of DTaP ranged from 36.6% to 98.8%, and for the 1st dose of MMR ranged from 80.9% to 100.0% across FSM states. On time coverage for the 4th dose of DTaP ranged from 3.2% to 52.3%, and for the 1st dose of MMR ranged from 21.1% to 66.9%. Maximum and median dose delays beyond the recommended age varied by state. TSEIR models predicted 10.8-13.7% increases in measles cases during an outbreak based on these delays. CONCLUSIONS: In each of the FSM states, a substantial proportion of children received DTaP and MMR doses outside the recommended timeframe. Children who receive vaccinations later than recommended remain susceptible to VPDs during the period they remain unvaccinated, which may have a substantial impact on health systems during an outbreak. Immunization programs should consider vaccination timeliness in addition to coverage as a measure of susceptibility to VPDs in young children. PMID- 29029942 TI - Immunogenicity of aluminum-adsorbed hepatitis A vaccine (Havrix(r)) administered as a third dose after primary doses of Japanese aluminum-free hepatitis A vaccine (Aimmugen(r)) for Japanese travelers to endemic countries. AB - BACKGROUND: Hepatitis A vaccination is recommended for travelers to endemic countries. Several inactivated aluminum-adsorbed hepatitis A vaccines are available worldwide, but only one licensed hepatitis A vaccine is available in Japan. This vaccine is a lyophilized inactivated aluminum-free hepatitis A vaccine (Aimmugen(r)). The standard schedule of Aimmugen(r) is three doses (at 0, 2-4 weeks, and 6 months). Japanese people will go abroad after receiving 2 doses of Aimmugen(r). Some long-term travelers will receive the third dose of hepatitis A vaccine at their destination, at 6-24 months after 2 doses of Aimmugen(r). Aimmugen(r) is not available in countries other than Japan. They receive inactivated aluminum-adsorbed hepatitis A vaccine instead of a third dose of Aimmugen(r). This study was undertaken to determine whether the booster vaccination with an aluminum-adsorbed hepatitis A vaccine is effective following two doses of Aimmugen(r). METHODS: Subjects were healthy Japanese adults aged 20 years or older who had received two doses of Aimmugen(r). Subjects received a booster dose of Havrix(r)1440 intramuscularly as the third dose. Serology samples for hepatitis A virus antibody titers were taken 4-6 weeks later. Anti-hepatitis A virus antibody titers were measured by an inhibition enzyme-linked immunosorbent assay. RESULTS: Subjects were 20 healthy Japanese adults, 6 men and 14 women. The mean age +/- standard deviation was 37.2 +/- 13.3. The seroprotection rate (SPR, anti-hepatitis A virus antibody titer >=10 mIU/mL) was 85% at enrollment, and increased to 100% after vaccination with Havrix(r). The geometric mean anti-hepatitis A virus antibody titer increased from 39.8 mIU/mL to 2938.2 mIU/mL. CONCLUSION: The three scheduled doses consisting of two doses of Aimmugen(r) plus a third dose with Havrix(r) is more immunogenic than using only two doses of Aimmugen(r). The vaccination with Havrix(r) could be allowed to be used instead of a third dose of Aimmugen(r). (UMIN000009351). PMID- 29029943 TI - BCG immune activation reduces growth and angiogenesis in an in vitro model of head and neck squamous cell carcinoma. AB - Head and neck squamous cell carcinoma (HNSCC) is one of the most frequent cancers worldwide and is associated with poor survival and significant treatment morbidity. The immune profile in patients with HNSCC is immunosuppressive and presents cytokine-mediated adaptive immune responses, triggered apoptosis of T cells, and alterations in antigen processing machinery. Bacille Calmette-Guerin (BCG) immunotherapy has been used successfully as a treatment for several types of cancer. In the present study, we sought to determine the antitumor effect of soluble mediators from peripheral blood mononuclear immune cells (PBMCs) activated with BCG vaccine in a three-dimensional coculture model of HNSCC growth using FaDu hypopharynx carcinoma squamous cells. BCG activation of PBMCs led to an increase in CD4+ and CD8+ lymphocyte subsets concomitant with an elevation in the levels of the antitumor cytokines IL-6, TNF-alpha and IFN-gamma, and a EGFR in FaDu cells. In addition, coculture with BCG-activated PBMCs reduced FaDu proliferation and increased cytotoxicity and apoptosis in parallel with an increase in caspase-3 activity and p53 expression. Finally, conditioned medium from BCG-activated PBMCs reduced the levels of the angiogenic factors vascular endothelial growth factor and angiopoietin-2 produced by human aortic endothelial cells (HAECs), and inhibited their proliferation and differentiation into capillary-like structures. Taken together, these results demonstrate that BCG vaccination induces antitumor responses in an HNSCC in vitro model and suggest that the BCG vaccine could be an effective alternative therapy for the treatment of HNSCC. PMID- 29029944 TI - [Antithrombotic treatment consensus protocol (anticoagulation and antiplatelet therapy) during the perioperative and periprocedural period in neurosurgery]. AB - The use of antithrombotic medication (antiplatelet and/or anticoagulant therapy) is widespread. Currently, the management of neurosurgical patients receiving this type of therapy continues to be a problem of special importance. Patients receiving antithrombotic treatment may need neurosurgical care because of bleeding secondary to such treatment, non-haemorrhagic neurosurgical lesions requiring urgent attention, or simply elective neurosurgical procedures. In addition, the consequences of reintroducing early (bleeding or rebleeding) or late (thrombotic or thromboembolic) anticoagulation can be devastating. In this paper we present the antithrombotic treatment consensus protocol during the perioperative and periprocedural period, both in emergent surgery and in elective neurosurgical procedures. PMID- 29029945 TI - Continuous positive airway pressure improves sleep quality, but not glycaemic control, in patients with poorly controlled long-standing type 2 diabetes. PMID- 29029946 TI - Hypoglycaemia causes both daytime and nighttime QTc interval prolongation in patients with type 2 diabetes receiving insulin treatment. PMID- 29029948 TI - Erratum. PMID- 29029947 TI - A "Neurological Emergency Trolley" reduces turnaround time for high-risk medications in a general intensive care unit. AB - OBJECTIVES: To reduce medication turnaround times during neurological emergencies, a multidisciplinary team developed a neurological emergency crash trolley in our intensive care unit. This trolley includes phenytoin, hypertonic saline and mannitol, as well as other equipment. The aim of this study was to assess whether the cart reduced turnaround times for these medications. RESEARCH METHODOLOGY/DESIGN: In this retrospective cohort study, medication delivery times for two year epochs before and after its implementation were compared. Eligible patients were identified from our intensive care unit screening log. Adults who required emergent use of phenytoin, hypertonic saline or mannitol while in the intensive care unit were included. Groups were compared with nonparametric analyses. SETTING: 33-bed general medical-surgical intensive care unit in an academic teaching hospital. MAIN OUTCOME MEASURES: Time to medication administration. RESULTS: In the pre-intervention group, there were 43 patients with 66 events. In the post-intervention group, there were 45 patients with 80 events. The median medication turnaround time was significantly reduced after implementation of the neurological emergency trolley (25 vs. 10minutes, p=0.003). There was no statistically significant difference in intensive care or 30-day survival between the two cohorts. CONCLUSION: The implementation of a novel neurological emergency crash trolley in our intensive care unit reduced medication turnaround times. PMID- 29029949 TI - Mitral Valve Replacement Using Carpentier-Edwards Pericardial Bioprosthesis in Patients With Rheumatic Heart Disease Aged Below 40 Years: 17-Year Results. AB - BACKGROUND: This study was designed to evaluate patients aged less than 40 years implanted with tissue heart valves with respect to survival, thromboembolism, structural degeneration and quality of life. METHODS: Between January, 2000 and December, 2016, 132 patients (51 males) with rheumatic heart disease underwent mitral valve replacement using Carpentier-Edwards, perimount, pericardial bioprostheses. The patients' ages ranged between 12 and 39 years (mean+/-SD 30.12+/-5.51 years). RESULTS: The hospital and late mortality were 1.5% and 1.5% respectively. The total cumulative follow-up period was 1330.98 patient-years with a mean of 124.78+/-50.3 months (range, 1-204 months). The actuarial survival and actuarial event-free survival at 204 months was 96.9% (+/-0.01%) and 93.4%(+/ 0.03%) respectively. There was one episode of thromboembolism (0.32 events per 100 patient years). Six (4.7%) patients underwent redo mitral valve replacement for severe bioprosthetic degeneration with stiffening and calcification using a Medtronic mechanical prosthesis (Medtronic Open Pivot, MN, USA). CONCLUSIONS: We conclude that Carpentier-Edwards perimount pericardial prosthesis provides satisfactory clinical performance in a young population with a low risk of degeneration and other valve-related events. PMID- 29029950 TI - Survival of Idiopathic Pulmonary Arterial Hypertension Patients in the Modern Era in Australia and New Zealand. AB - BACKGROUND: Epidemiology and treatment strategies continue to evolve in pulmonary arterial hypertension (PAH). We sought to define the characteristics and survival of patients with idiopathic, heritable and drug-induced PAH in the current management era. METHODS: Consecutive cases of idiopathic, heritable and drug induced PAH were prospectively enrolled into an Australian and New Zealand Registry. RESULTS: Between January 2012 and December 2016, a total of 220 incident cases were enrolled (mean age 57.2+/-18.7years, female 69.5%) and followed for a median duration of 26 months (IQR17-39). Co-morbidities were common such as obesity (34.1%), systemic hypertension (30.5%), coronary artery disease (16.4%) and diabetes mellitus (19.5%). Initial combination therapy was used in 54 patients (dual, n=50; triple, n=4). Estimated survival rates at 1 year, 2-years and 3-years were 95.6% (CI 92.8-98.5%), 87.3% (CI 82.5-92.4%) and 77.0% (CI 70.3-84.3%), respectively. Multivariate analysis showed that male sex and lower 6-minute distance at diagnosis independently predicted worse survival, whereas obesity was associated with improved survival. Co-morbidities other than obesity did not impact survival. Initial dual oral combination therapy was associated with a trend towards better survival compared with initial oral monotherapy (adjusted HR=0.27, CI 0.06-1.18, p=0.082) CONCLUSIONS: The epidemiology and survival of patients with idiopathic PAH in Australia and New Zealand are similar to contemporary registries reported in Europe and North America. Male sex and poorer exercise capacity are predictive of mortality whereas obesity appears to exert a protective effect. Despite current therapies, PAH remains a life-threatening disease associated with significant early mortality. PMID- 29029951 TI - Intrahepatic Vgamma9Vdelta2 T-cells from HCV-infected patients show an exhausted phenotype but can inhibit HCV replication. AB - Hepatitis C virus (HCV) persistence results from inefficiencies of both innate and adaptive immune responses to eradicate the infection. A functional impairment of circulating Vgamma9Vdelta2 T-cells was described but few data are available on Vgamma9Vdelta2 T-cells in the liver that, however, represents the battlefield in the HCV/host interaction. Aim of this work was to compare circulating and intrahepatic Vgamma9Vdelta2 T-cells in chronic HCV-infected patients (HCVpos) and in HCV-negative (HCVneg) subjects. Phenotypic and functional analysis was performed by flow cytometry. Anti-HCV activity was analyzed by using an in vitro autologous liver culture system. Independently from HCV infection, the liver was enriched of Vgamma9Vdelta2 T-cells expressing an effector/activated phenotype. In contrast, an enrichment of PD-1 expressing Vgamma9Vdelta2 T-cells was observed both in the peripheral blood and in the liver of HCVpos patients, probably due to a persistent antigenic stimulation. Moreover, a lower frequency of IFN-gamma producing Vgamma9Vdelta2 T-cells was observed in the liver of HCVpos patients, suggesting a functional impairment in the cytokine production in HCVpos liver. Despite this hypo-responsiveness, intrahepatic Vgamma9Vdelta2 T-cells are able to exert an anti-HCV activity after specific stimulation. Altogether, our data show that HCV infection induced a dysregulation of intrahepatic Vgamma9Vdelta2 T cells that maintain their anti-HCV activity after specific stimulation. A study aimed to evaluate the mechanisms of the antiviral activity may be useful to identify new pathways able to improve Vgamma9Vdelta2 T-cells intrahepatic function during HCV infection. PMID- 29029953 TI - Acute calcific periarthritis in proximal interphalangeal joint: An unusual cause of acute finger pain. PMID- 29029952 TI - Survival Disparity Following Abdominal Aortic Aneurysm Repair Highlights Inequality in Ethnic and Socio-economic Status. AB - OBJECTIVES: Socio-economic status (SES) and ethnicity have been reported as markers influencing the likelihood of increased mortality. The aim of this study was to investigate how SES and ethnicity impacted patient survival after abdominal aortic aneurysm (AAA) repair. METHODS: Consecutive patients undergoing open and endovascular AAA repair during a 14.5 year period were identified. Ethnicity was defined as recorded on health records and SES (a score of 10, where 1 is least deprived and 10 being most deprived) and was linked to census data. Operative outcomes were reported at 30 days and a medium-term survival analysis used the Cox model to report adjusted hazard ratios (HR). RESULTS: A total of 6239 patients with a median age of 75 years and 78.7% males were included. The majority (5,654) were identified as New Zealand (NZ) Europeans, with 421 identified as NZ Maori, 97 identified as belonging to a Pacific ethnic group, and 67 identified as an Asian ethnic group. The median survival follow-up period was 5 years and after adjusting for confounders, those who identified as NZ Maori had the lowest survival compared with all other ethnic groups with a HR of 1.46 (95% CI 1.23-1.72). Living in areas of high social deprivation >= 7 was an independent predictor of short and medium-term overall mortality when compared with living in deprivation deciles 1 or 2. CONCLUSIONS: Low SES was identified as a marker of risk for all ethnic groups in relation to both reduced short and medium-term survival. However, regardless of SES, NZ Maori had worse overall medium-term survival following AAA repair than the other ethnic groups. Therefore it appears that both SES and being Maori were markers of increased exposure to risk that negatively impact upon survival after AAA repair. There is a need to ensure systemic processes support initiatives that reduce this inequality. PMID- 29029954 TI - Cast immobilization of the lower-leg: No indication for thromboprophylactic therapy. PMID- 29029955 TI - Assessing incidence and risk factors of acute kidney injury in traumatic patients. PMID- 29029956 TI - Adipose stem cell neurospheres for Huntington's disease. PMID- 29029957 TI - A model-based approach for estimation of changes in lumbar segmental kinematics associated with alterations in trunk muscle forces. AB - The kinematics information from imaging, if combined with optimization-based biomechanical models, may provide a unique platform for personalized assessment of trunk muscle forces (TMFs). Such a method, however, is feasible only if differences in lumbar spine kinematics due to differences in TMFs can be captured by the current imaging techniques. A finite element model of the spine within an optimization procedure was used to estimate segmental kinematics of lumbar spine associated with five different sets of TMFs. Each set of TMFs was associated with a hypothetical trunk neuromuscular strategy that optimized one aspect of lower back biomechanics. For each set of TMFs, the segmental kinematics of lumbar spine was estimated for a single static trunk flexed posture involving, respectively, 40 degrees and 10 degrees of thoracic and pelvic rotations. Minimum changes in the angular and translational deformations of a motion segment with alterations in TMFs ranged from 0 degrees to 0.7 degrees and 0 mm to 0.04 mm, respectively. Maximum changes in the angular and translational deformations of a motion segment with alterations in TMFs ranged from 2.4 degrees to 7.6 degrees and 0.11 mm to 0.39 mm, respectively. The differences in kinematics of lumbar segments between each combination of two sets of TMFs in 97% of cases for angular deformation and 55% of cases for translational deformation were within the reported accuracy of current imaging techniques. Therefore, it might be possible to use image-based kinematics of lumbar segments along with computational modeling for personalized assessment of TMFs. PMID- 29029958 TI - Innate Lymphoid Cell Regulation: Meeting the Long-Lost Cousin. AB - Innate lymphoid cells (ILCs) play critical roles in immune homeostasis and immunity to pathogens. Increasing evidence implicates dysregulated ILC responses as drivers of disease pathogenesis in multiple inflammatory disorders. A recent study reveals how inflammatory ILC responses can be suppressed by a newly defined subset of ILCs with regulatory function. PMID- 29029959 TI - LDT classification and therapeutic strategy of congenital body wall defects. AB - BACKGROUND: Repairing body wall defects is a critical step in the treatment of some congenital deformities, and this procedure may need the help from plastic surgeons. Although there are many articles about congenital deformities, body wall defects of these malformations are rarely studied as independent targets. METHODS: In this article, the authors present an LDT classification for congenital body wall defects according to the position of the defects, the tissue layers involved, and the surgical urgency, each of which is represented by letters L, D, and T, respectively. That is, the defects in different areas (L), full-thickness (D1), or partial (D0A, D0B) defects, defects needing instant repair (T2), semi-elective repair (T1), or elective repair (T0). Based on this classification system, the authors have performed body wall reconstruction on two pairs of thoraco-omphalopagus twins, one pair of ischiopagus tetrapus twins, and an infant and an adult, both of whom were diagnosed with pentalogy of Cantrell associated with ectopia cordis. RESULTS: Except for one pair of thoraco omphalopagus twins who died after emergency separation, all the other patients survived. Another pair of thoraco-omphalopagus twins suffered from wound dehiscence and partial flap necrosis, respectively, after surgery. An expanded polytetrafluoroethylene mesh in one sister of the ischiopagus twins was removed because of infection. CONCLUSIONS: LDT classification not only can help doctors categorise different congenital body wall defects rapidly and easily, but can also guide the reconstruction of these defects. It may have clinical value to plastic surgeons to some extent. PMID- 29029960 TI - Considerations for the correct interpretation of confidence intervals in nursing research. PMID- 29029961 TI - A critical analysis towards research perspectives: Reply to comments on "Modeling human behavior in economics and social science". AB - We take advantage of the challenging comments to the modeling approach we proposed in [35] to look ahead at a number of applications of the methods to the alternative questions these comments raise. In turn, our effort results in a number of interesting and valuable research perspectives. The presentation goes along three main lines. In the first line, we summarize briefly the aims and results in [35]. In the second section we give a technical the issues raised and, finally, the focus moves to the above mentioned research perspectives. PMID- 29029962 TI - Answering Schrodinger's question: A free-energy formulation. AB - The free-energy principle (FEP) is a formal model of neuronal processes that is widely recognised in neuroscience as a unifying theory of the brain and biobehaviour. More recently, however, it has been extended beyond the brain to explain the dynamics of living systems, and their unique capacity to avoid decay. The aim of this review is to synthesise these advances with a meta-theoretical ontology of biological systems called variational neuroethology, which integrates the FEP with Tinbergen's four research questions to explain biological systems across spatial and temporal scales. We exemplify this framework by applying it to Homo sapiens, before translating variational neuroethology into a systematic research heuristic that supplies the biological, cognitive, and social sciences with a computationally tractable guide to discovery. PMID- 29029964 TI - Corrigendum to "Avoidable cancer cases in the Nordic countries - The impact of overweight and obesity" [Eur J Cancer 79 (2017) 106-118]. PMID- 29029963 TI - Genetic risk factors in Finnish patients with Parkinson's disease. AB - INTRODUCTION: Variation contributing to the risk of Parkinson's disease (PD) has been identified in several genes and at several loci including GBA, SMPD1, LRRK2, POLG1, CHCHD10 and MAPT, but the frequencies of risk variants seem to vary according to ethnic background. Our aim was to analyze how variation in these genes contributes to PD in the Finnish population. METHODS: The subjects consisted of 527 Finnish patients with early-onset PD, 325 patients with late onset PD and 403 population controls. We screened for known genetic risk variants in GBA, SMPD1, LRRK2, POLG1, CHCHD10 and MAPT. In addition, DNA from 225 patients with early-onset Parkinson's disease was subjected to whole exome sequencing (WES). RESULTS: We detected a significant difference in the length variation of the CAG repeat in POLG1 between patients with early-onset PD compared to controls. The p.N370S and p.L444P variants in GBA contributed to a relative risk of 3.8 in early-onset PD and 2.5 in late-onset PD. WES revealed five variants in LRRK2 and SMPD1 that were found in the patients but not in the Finnish ExAC sequences. These are possible risk variants that require further confirmation. The p.G2019S variant in LRRK2, common in North African Arabs and Ashkenazi Jews, was not detected in any of the 849 PD patients. CONCLUSIONS: The POLG1 CAG repeat length variation and the GBA p.L444P variant are associated with PD in the Finnish population. PMID- 29029965 TI - Contemporary Epidemiology, Management, and Outcomes of Patients Hospitalized for Heart Failure in China: Results From the China Heart Failure (China-HF) Registry. AB - BACKGROUND: Contemporary data on the epidemiology of heart failure (HF) in China are scarce. The China-HF Registry was designed to investigate clinical characteristics, management, and outcomes of patients hospitalized for HF in China. METHODS AND RESULTS: Data were collected prospectively on 13,687 patients with a primary discharge diagnosis of HF who were enrolled from 132 participating hospitals from January 2012 to September 2015. Data from the China-HF Registry was compared with previously published literature. The mean age was 65 +/- 15 years, 59.1% were male, and 36.0% had preserved ejection fraction. Age, body mass index, and systolic blood pressure were lower than in high-income countries. Common comorbidities included hypertension (50.9%), coronary heart disease (49.6%), and atrial fibrillation (24.4%). The overall use of diuretics, angiotensin-converting enzyme inhibitors or angiotensin receptor blockers (ACEI/ARB), and beta-blockers at admission was 30.1%, 27.0%, and 25.6%, respectively, which was lower than in other registries. For patients discharged alive, ACEI/ARB, beta-blocker, and mineralocorticoid receptor antagonist use in patients with reduced ejection fraction was 67.5%, 70.0%, and 74.1%, respectively; device use was much lower. The median length of hospital stay was 10 (range 7-15) days, and in-hospital mortality was 4.1 +/- 0.3%. Predictors of mortality included low systolic blood pressure, acute myocardial infarction, infection, right bundle branch block, and elevated total bilirubin and blood urea nitrogen level. CONCLUSIONS: Several important findings in patient profile and treatment patterns among Chinese patients with HF were noted compared with published literature. These data underscore the need for regional characterization of HF for global clinical trials and for the identification of several quality improvement opportunities. PMID- 29029967 TI - [10 years of external quality assurance in dialysis in Germany: Results and future prospects]. AB - BACKGROUND: In 2006, the Federal Joint Committee introduced a quality assurance programme for ambulatory dialysis treatment in Germany. Regarding the impact of chronic dialysis treatment on the quality of life of patients and on health care costs, quality assurance in dialysis is considered highly relevant. The directive on Quality Assurance in Dialysis (QSD-RL) established an external quality assurance programme on the basis of the assessment of certain quality parameters combined with an internal quality management system based on benchmarking parameters in all dialysis practices and centres. Data on quality parameters are collected and analysed quarterly. Regional associations of statutory health insurance physicians take responsibility for quality improvement measures and sanctions. This article aims to provide an overview of the development of quality parameters from 2008 to 2015. METHODS: We analysed the summarised annual quality reports published on the website of the Federal Joint Committee between 2009 and 2016. We present results on the so-called core quality parameters duration and frequency of dialysis sessions (both for haemodialysis patients), wKt/V for peritoneal dialysis patients, and percentage of haemodialysis patients with central venous catheters which has only been measured since 2014. RESULTS AND CONCLUSIONS: In 2015, 92,000 patients received outpatient dialysis. Between 2008 and 2015, the results for the core quality parameters duration and frequency of haemodialysis improved while the results for wKt/V seemingly show an unfavourable trend. The percentage of patients with central venous catheters appears to be quite high, and thus indicates that there is potential for quality improvement. FUTURE PERSPECTIVES: For the future, the Federal Joint Committee has resolved to merge the quality assurance programmes in dialysis and in kidney transplantation into a newly designed programme that has the potential to follow patients through all stages and kinds of renal replacement therapy and to focus on further aspects of treatment quality. PMID- 29029968 TI - Linking Editorial / Anknupfungseditorial. PMID- 29029966 TI - Softening Among U.S. Smokers With Psychological Distress: More Quit Attempts and Lower Consumption as Smoking Drops. AB - INTRODUCTION: It has been argued that as smoking prevalence declines, the remaining smokers represent a "hard core" who are unwilling or unable to quit, a process known as hardening. However, as recently shown, the general smoking population is softening not hardening (i.e., as prevalence falls, more quit attempts and lower consumption among continuing smokers). People with psychological distress smoke more, so they may represent hard-core smokers. METHODS: Using cross-sectional time series analysis, in 2016-2017 changes in quit attempts and cigarette consumption were evaluated over 19 years among smokers with serious psychological distress (Kessler-6 score >=13) based on the National Health Interview Survey (1997-2015), controlling for sociodemographic variables. RESULTS: People with psychological distress had higher smoking prevalence and consumed more cigarettes/day than people without distress. The percentage of those with at least one quit attempt was higher among those with psychological distress. The increase in quit attempts over time was similar among smokers in each of the distress levels. For every 10 years, the OR of a quit attempt increased by a factor of 1.13 (95% CI=1.02, 1.24, p<0.05). Consumption declined by 3.35 (95% CI= -3.94, -2.75, p<0.01) cigarettes/day for those with serious psychological distress. CONCLUSIONS: Although smoking more heavily than the general population, smokers with psychological distress, like the general population, are softening over time. To improve health outcomes and increase health equity, tobacco control policies should continue moving all subgroups of smokers down these softening curves, while simultaneously incorporating appropriately tailored quitting help into mental health settings. PMID- 29029969 TI - Cross-year peer-assisted learning using the inverted ("flipped") classroom design: A pilot study in dentistry. AB - BACKGROUND: The inverted classroom model (ICM) represents a special combination of online and attendance learning. The implementation of the didactic concept of "peer-assisted learning" (PAL) within an ICM design has not yet been described in the literature for the field of restorative dentistry. OBJECTIVE: It was the goal of the present study to develop an ICM offering in a cross-year PAL format (ICM cyPAL), and then introduce and evaluate it. METHOD: The pilot project was conducted at the dental clinic at the Goethe University of Frankfurt/Main, where following its conceptual development and implementation with three consecutive cohorts of students in their first clinical semester (the sixth semester at university) the ICM-cyPAL offering was evaluated. Data on acceptance, tutor effectiveness, group interaction models and learning strategies were collected using an evaluative instrument. RESULTS: 121 students (tutees) participated in three cohorts. The response rate reached 98.3 %. In total, the offering was given an average rating of 6.97+/-1.93 (from 1 = unsatisfactory to 10 = excellent). As the tutees explained the attention that the tutors employed gave to the group was "just right" (4.65+/-1.04; where 1 = too controlling and 4 = just right to 7 = left the group on their own too long) and talked "just the right amount" (4.54+/ 0.95; where 1 = too much and 4 = just right to 7 = talked too little). The results for tutor effectiveness reached values between 3.26+/-0.94 and 3.78+/ 0.87; for the evaluation of group interaction models average values were obtained from 3.41+/-0.98 to 3.89+/-0.73 (on a Likert scale of 1 = do not at all agree to 5 = completely agree). Concerning the surveyed learning strategies, the dimensions of "resource management" and "implementation of the learning materials" were given the highest and lowest rankings, respectively. CONCLUSION: The tutees' ratings of the newly developed and implemented ICM-cyPAL offering in the dental context were mainly positive. The thematic orientation of the structured training program needs to be optimized. The offering itself requires both a high degree of organization and solid financial and staffing resources. PMID- 29029970 TI - ? PMID- 29029971 TI - ? PMID- 29029972 TI - Development of indicators for a nationwide cross-sectoral quality assurance procedure for mental health care of patients with schizophrenia, schizotypal and delusional disorders in Germany. AB - PURPOSE: This paper describes the development of quality indicators for an external statutory and cross-sectoral quality assurance (QA) procedure in the context of the German health care system for adult patients suffering from schizophrenia, schizotypal and delusional disorders (F20-F29). METHODS: Indicators were developed by a modified RAND/UCLA Appropriateness Method with 1) the compilation of an indicator register based on a systematic literature search and analyses of health care claims data, 2) the selection of indicators by an expert panel that rated them for relevance and for feasibility regarding implementation. Indicators rated positive for both relevance and feasibility formed the final indicator set. RESULTS: 847 indicators were identified by different searches. Out of these, 56 were selected for the indicator register. During the formal consensus process the expert panel recommended another 45 indicators so that a total of 101 indicators needed to be considered by the panel. Of these, 27 indicators rated both relevant and feasible were included in the final set of indicators: this set included 4 indicators addressing structures, 19 indicators addressing processes and 4 indicators addressing outcomes. 17 indicators of the set will be reported by hospitals and 8 by psychiatric outpatient facilities. Two indicators considered to be cross-sectoral will be reported by both sectors. DISCUSSION: F20-F29 and its treatment show some specific features which so far have not been addressed by any procedure within the statutory QA program of the German health care system. These features include: Schizophrenia and related disorders a) are potentially chronic conditions, b) are mainly treated in outpatient settings, c) require a multi professional treatment approach and d) are treated regionally in catchment areas. These specific features in combination with the peculiarities of some legal, political and organizational characteristics of the German health care system and its statutory QA program have strongly influenced the development of indicators. The result was a seemingly "imbalanced" set of indicators with a greater number of indicators for inpatient than for outpatient care despite the fact that clinical reality is otherwise. CONCLUSIONS: The circumstances of the German health care system that restricted the development of this cross-sectoral QA procedure addressing care for F20-F29 are also most likely to emerge with the development of cross-sectoral QA procedures for other (potentially) chronic conditions that are mainly treated in the outpatient setting by multi professional teams or by networks of different providers. In order to be able to develop a QA procedure that mirrors the reality of service provision for (potentially) chronic diseases such as F20-F29 we need to explore further current and new data sources, diminish sectoral borders, and implement health care responsibility on the level of catchment areas. PMID- 29029973 TI - Comparing the management of constipation and distal intestinal obstruction syndrome between paediatricians and adult physicians. PMID- 29029974 TI - Altered cardiac gene expression of noradrenaline enzymes, transporter and beta adrenoceptors in rat model of rheumatoid arthritis. AB - Baseline sympathetic activity was found to be elevated in rheumatoid arthritis (RA) patients and it is related to increased cardiovascular risk in these patients. Although many studies have highlighted the association between RA and increased cardiac sympathetic activity, the underlying mechanistic links remain unclear. The aim of the present study was to understand how diseases-triggered changes in gene expression may result in maladaptive physiological changes. Our results suggest that the equilibrium between noradrenaline synthesis, release and reuptake was disrupted in the ventricles of arthritic rats. In the acute phase of the arthritic process, decreased gene expression of MAO-A might lead to accumulation of noradrenaline in myocardial interstitial space, whereas increased gene expression of NET protected cardiomyocytes from the deleterious effects of enhanced noradrenaline. During the chronic phase, reduced expression of beta1 adrenoceptor and decreased efficiency of noradrenaline reuptake contribute to progressive damage of the myocardium and limits heart efficiency. PMID- 29029975 TI - Distressed setting and profound challenges: Pandemic influenza preparedness plans in the Eastern Mediterranean Region. AB - BACKGROUND: Influenza pandemics are unpredictable and can have severe health and economic implications. Preparedness for pandemic influenza as advised by the World Health Organization (WHO) is key in minimizing the potential impacts. Pandemic Influenza Preparedness (PIP) Framework is a global public-private initiative to strengthen the preparedness. A total of 43 countries receive funds through Partnership Contribution (PC) component of PIP Framework to enhance preparedness; seven of these fall in the WHO's Eastern Mediterranean Region. We report findings of a desk review of preparedness plans of six such countries from the Region. METHODS: The assessment was done using a standardized checklist containing five criteria and 68 indicators. The checklist was developed using the latest WHO guidelines, in consultation with influenza experts from the Region. The criteria included preparation, surveillance, prevention and containment, case investigation and treatment, and risk communication. Two evaluators independently examined and scored the plans. RESULTS: Pandemic preparedness plan of only one country scored above 70% on aggregate and above 50% on all individual criteria. Plans from rest of the countries scored below satisfactory on aggregate, as well as on individual preparedness criteria. Among the individual criteria, prevention and containment scored highest while case investigation and treatment, the lowest for majority of the countries. In general, surveillance also scored low while it was absent altogether, in one of the plans. CONCLUSIONS: This was a desk review of the plans and not the actual assessment of the influenza preparedness. Moreover, only plans of countries facilitated through funds provided under the PC implementation plan were included. The preparedness scores of majority of reviewed plans were not satisfactory. This warrants a larger study of a representative sample from the Region and also calls for immediate policy action to improve the pandemic influenza preparedness plans and thereby enhance pandemic preparedness in the Region. PMID- 29029976 TI - Extraction and RT-qPCR detection of enteroviruses from solid environmental matrixes: Method decision tree for different sample types and viral concentrations. AB - Quantitative RT-PCR methods (RT-qPCR) are becoming increasingly desirable for the detection of enteric viruses in solid environmental matrixes such as sediments, soils and sewage sludge. However, effective methodologies that allow the extraction of high quality RNA ready for molecular quantification continue to be evaluated. In the present study, four different methods for enterovirus extraction from solid environmental matrixes were compared in terms of viral recovery and inhibitor removal. Three indirect methods based on glycine elution and concentration by ultracentrifugation were tested. The main differences between indirect methods were the sample to glycine buffer ratio, and the ultracentrifugation protocol applied. One commercial direct method was also tested. The indirect methods produced better results than the direct method. The ultracentrifugation led to viral losses in samples with high titers; however, as the virus concentration reduced, the ultracentrifugation became increasingly important for viral recovery. Two commercial RNA extraction kits were also evaluated and it was selected the most effective in removing RT-qPCR inhibitors. The results obtained allowed the development of a method decision tree with three versions that are suitable for different samples and viral concentrations. PMID- 29029977 TI - Spontaneous luminescence color change in the firefly luciferase assay system. AB - The temporal effects of luciferase reaction luminescence have only been discussed in the context of light intensity (flash vs. glow). However, alterations in the color of the light emitted over the course of the luciferase reaction have not been reported. Here, we show a temporal change in the light color emitted during the reaction catalyzed by unmodified firefly luciferase when concentrations of one of the substrates, adenosine triphosphate (ATP), are gradually increased. The temporal color change from green to red occurs within the first few minutes of the luciferase reaction when an ATP-containing solution is either added or synthesized in situ with the aid of an autocatalytic reaction occurring simultaneously. This color change is not accompanied by pH changes. An analysis of the red and green channels demonstrates dissimilar kinetics, suggesting the co existence of two or more temporally shifted luminescence pathways. The implications of these findings might improve dual-color biosensing/imaging protocols and influence the engineering of biophotonic systems. PMID- 29029978 TI - A multiplex RNA quantification method to determine the absolute amounts of mRNA without reverse transcription. AB - We have developed a highly sensitive microarray-based method that determines the absolute amounts of mRNA in a total RNA sample in a multiplex manner without reverse transcription. This direct mRNA measurement promotes high-throughput testing and reduces bias in transcriptome analyses. Furthermore, quantification of the absolute amount of mRNA allows transcriptome analysis without common controls or additional, complicated normalization. The method, called Photo-DEAN, was validated using chemically synthesized RNAs of known quantities and mouse liver total RNA samples. We found that the absolute amounts of mRNA were successfully measured without the cDNA synthesis step, with a sensitivity of 15 zmol achieved in 7 h. PMID- 29029979 TI - Immunoaffinity capture coupled with capillary electrophoresis - mass spectrometry to study therapeutic protein stability in vivo. AB - Protein engineering is at an all-time high in biopharmaceutics. As a result, absorption, distribution, metabolism and excretion (ADME) of proteins has become more important to understand in the context of engineering strategies to optimize therapeutic properties of potential lead constructs. Immunoaffinity capture coupled with a newly developed capillary electrophoresis - mass spectrometry (CE MS) system was used to characterize intact protein mass analysis of a wild type Fc-FGF21 construct and a sequence re-engineered Fc-FGF21 construct from an in vivo study. A number of truncated forms were observed and the time courses of the various proteolytic products were identified and compared between the two constructs. The abundances of the intact and truncated forms were used to provide the basis to semi-quantify ADME properties of the two protein forms. The use of this immunoaffinity capture followed by CE-MS based intact mass analysis workflow provided a qualitative and quantitative analysis of the pharmacokinetic profiles of the two proteins. The platform presented here holds great potential in characterization of the ADME properties of proteins. PMID- 29029980 TI - Sol-gel derived flexible silica aerogel as selective adsorbent for water decontamination from crude oil. AB - Oil spills are the most important threat to the sea ecosystem. The present study is an attempt to investigate the effects of sol-gel parameters on seawater decontamination from crude oil by use of flexible silica aerogel. To this goal, methyltrimethoxysilane (MTMS) based silica aerogels were prepared by two-step acid-base catalyzed sol-gel process, involving ambient pressure drying (APD) method. To investigate the effects of sol-gel parameters, the aerogels were prepared under two different acidic and basic pH values (i.e. 4 and 8) and varied ethanol/MTMS molar ratios from 5 to 15. The adsorption capacity of the prepared aerogels was evaluated for two heavy and light commercial crude oils under multiple adsorption-desorption cycles. To reduce process time, desorption cycles were carried out by using roll milling for the first time. At optimum condition, silica aerogels are able to uptake heavy and light crude oils with the order of 16.7 and 13.7, respectively. PMID- 29029981 TI - Beach litter dynamics on Mediterranean coasts: Distinguishing sources and pathways. AB - We assessed amounts, composition and net accumulation rates every ~15days of beach macro litter (>=2.5cm) on 4 Mediterranean beaches, on Corfu island, N. Ionian Sea, taking into account natural and anthropogenic drivers. Average net accumulation rate on all beaches was found 142+/-115N/100m/15d. By applying a Generalized Linear Model (GzLM) it was shown that sea transport is the dominant pathway affecting the amount and variability in beach litter loadings. Principal Component Analysis (PCA) on compositional data and indicator items discerned two more pathways of beach litter, i.e. in situ litter from beach goers and wind and/or runoff transport of litter from land. By comparing the PCA results to those from a simple item to source attribution, it is shown that regardless their source litter items arrive at beaches from various pathways. Our data provide baseline knowledge for designing monitoring strategies and for setting management targets. PMID- 29029982 TI - A change in phytoplankton community index with water quality improvement in Tolo Harbour, Hong Kong. AB - Water quality in Tolo Harbour and Channel (Tolo) has been improved since 1998 after the diversion of sewage effluent. However, it remains poorly understood how nutrient loading reduction has impacted the phytoplankton community. To evaluate this, we applied a Phytoplankton Community Index PI(mp) to the 23-year data (1991 2013) at inner (TM4) and outer (TM8) sites in Tolo, with the former being more eutrophic than the latter. The results show that 1) the phytoplankton community changed with time after sewage diversion; 2) "diatoms and dinoflagellates" were better indicators of nutrient impact than "autotrophic/mixotrophic and heterotrophic dinoflagellates"; 3) the rate of recovery differed between the two stations, but both reached a similar state at a similar time; 4) seasonality of the phytoplankton community showed greater disturbance in spring than in other seasons. Our findings indicate that the nutrient reduction in the Tolo resulted in a positive change in the phytoplankton community. PMID- 29029983 TI - Distribution and key influential factors of dissolved oxygen off the Changjiang River Estuary (CRE) and its adjacent waters in China. AB - Based on two multidisciplinary investigations conducted in summer and winter 2015, the distribution of dissolved oxygen (DO) and the associated seasonal variations off the Changjiang River Estuary (CRE) were studied. The DO content was high in winter, ranging from 6.81-10.29mg/L, and the distribution was mainly controlled by temperature and salinity. The DO concentration was 1.92-9.67mg/L in summer, and a hypoxic zone (DO<3mg/L) covered 14,800km2, which was mainly controlled by stratification and organic matter decomposition. The hypoxic zone exhibited a "dual-core" structure and the differences in the biochemical and physical processes between the southern and northern regions were compared: the northern region exhibited stronger pycnocline intensity; while larger biomass and higher TOC as well as TN contents were observed in the southern region. Hypoxia in the northern region might be mainly dominated by stratification, while that in the southern region was mainly associated with organic matter decomposition. PMID- 29029984 TI - Sleep, sleep apnea and atrial fibrillation: Questions and answers. AB - Sleep apnea (SA) is a common sleep disorder increasingly recognized as a risk for cardiovascular disease. Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with significant morbidity and mortality. An increasing number of investigations in recent years have linked SA to AF. In this review, we aim to provide a critical overview of the existing evidence in a question and answer format by addressing the following: What is the prevalent association between the two conditions (separating nocturnally detected AF episodes from AF as a prevalent condition)? Is SA a risk factor for incident AF? Is SA a risk factor for recurrence of AF following cardioversion/catheter-based ablation? What is the association between SA and AF in patients with heart failure? Are there signature electrocardiographic markers of AF found in patients with SA? Are there electrophysiology-based studies supporting the link between SA and AF? What other sleep characteristics (beyond SA) are found in patients with AF? What is the impact of SA treatment on AF? What is the effect of AF treatment on sleep? Finally, we address unsolved questions and suggest future directions to enhance our understanding of the AF-SA relationship. PMID- 29029985 TI - Clinical and pathological outcomes after irreversible electroporation of the pancreas using two parallel plate electrodes: a porcine model. AB - BACKGROUND: Irreversible electroporation (IRE) by inserting needles around the tumor as treatment for locally advanced pancreatic cancer entails several disadvantages, such as incomplete ablation due to field inhomogeneity, technical difficulties in needle placement and a risk of pancreatic fistula development. This experimental study evaluates outcomes of IRE using paddles in a porcine model. METHODS: Six healthy pigs underwent laparotomy and were treated with 2 separate ablations (in head and tail of the pancreas). Follow-up consisted of clinical and laboratory parameters and contrast-enhanced computed tomography (ceCT) imaging. After 2 weeks, pancreatoduodenectomy was performed for histology and the pigs were terminated. RESULTS: All animals survived 14 days. None of the animals developed signs of infection or significant abdominal distention. Serum amylase and lipase peaked at day 1 postoperatively in all pigs, but normalized without signs of pancreatitis. On ceCT-imaging the ablation zone was visible as an ill-defined, hypodense lesion. No abscesses, cysts or ascites were seen. Histology showed a homogenous fibrotic lesion in all pigs. CONCLUSION: IRE ablation of healthy porcine pancreatic tissue using two plate electrodes is feasible and safe and creates a homogeneous fibrotic lesion. IRE-paddles should be tested on pancreatic adenocarcinoma to determine the effect in cancer tissue. PMID- 29029986 TI - Radiofrequency ablation for colorectal cancer liver metastases initially greater than 25 mm but downsized by neo-adjuvant chemotherapy is associated with increased rate of local tumor progression. AB - BACKGROUND: Radiofrequency ablation (RFA) is a valid treatment for liver metastases from colorectal cancer (CRLM) smaller than 25 mm and unsuitable for surgical resection. Tumor size is predictive for local tumor progression (LTP). The aim of this study was to evaluate whether RFA is indicated for lesions >25 mm at presentation but <25 mm after chemotherapy. METHOD: Patients who underwent RFA for CRLM after chemotherapy (January 2004-December 2012) were reviewed. Metastases were classified according to their size. Group 1: <=25 mm before and after chemotherapy. Group 2A: >25 mm before but <=25 mm after chemotherapy. Group 2B: >25 mm before and after chemotherapy. RESULTS: 133 CRLM were ablated in 83 patients (median follow-up 56 months). At 1-year, the LTP rate was higher in group 2A than in group 1 (32% vs. 16%, p <= 0.001). The highest rate of 1-year LTP was 64% in group 2B. Time to LTP (TLTP) was shorter in group 2A than in group 1 (HR: 2.89; 95% CI [1.04-8.01]; p = 0.004). Following multivariate analysis, the group type was the only predictive factor for TLTP (p < 0.001). CONCLUSIONS: RFA is not the optimal treatment for CRLM > 25 mm at presentation. PMID- 29029987 TI - Multiple extensor tendons reconstruction with hamstring tendon grafts and flap coverage for severe dorsal hand injuries. AB - : Treatment of patients with traumatic loss of skin and multiple extensor tendons on the dorsum of the hand is a challenge. The aim of this study was to assess the outcome after reconstruction of soft tissues and multiple extensor tendons in patients who suffered traumatic loss of skin and multiple extensor tendons. Ten patients were enrolled in the study. These patients underwent single-stage reconstruction with autogenous hamstring tendon grafts for multiple extensor tendon defects and fasciocutaneous flaps for coverage of dorsal hand defects. In total, 25 tendons (2 tendons in 5 patients and 3 tendons in 5 patients) were reconstructed. The semitendinosus tendon was used in all patients and the gracilis tendon was added in five patients for tendon reconstruction. Total tendon length requiring reconstruction was between 9cm and 31cm. Free anterolateral thigh flaps were used in six patients and reverse pedicled forearm flaps were used in four patients. According to Miller's scoring system, 8 fingers had excellent results, 12 fingers had good results and 5 fingers had fair results at the final follow-up. Hamstring tendons can be used satisfactorily for primary reconstruction of multiple digital extensor tendons due to their availability and compatibility, with a fasciocutaneous flap. LEVEL OF EVIDENCE: IV. PMID- 29029988 TI - Mandibular embryonal rhabdomyosarcoma with cartilaginous metaplasia: report of a case and review of literature. AB - Rhabdomyosarcoma (RMS) is a malignant tumor of skeletal muscle origin and frequently involves the head and neck region. It represents the second most common pediatric soft tissue sarcoma and accounts for 3% of all childhood cancers. Here, we report a case of embryonal RMS presenting as a right-sided facial swelling in a 7-year-old boy. Histologically, the tumor consisted of classic embryonal rhabdosarcomatous areas with metaplastic cartilage, in both initial biopsy and final resection specimens. Cartilaginous metaplasia arising in the background of RMS is a rare finding, thus raising a diagnostic challenge. To the best of our knowledge, this represents the first case of RMS with cartilaginous metaplasia in the oral cavity. PMID- 29029989 TI - The effect of demographic and disease variables on Schneiderian membrane thickness and appearance. AB - OBJECTIVES: The purpose of this study was to evaluate the prevalence of sinus mucosal thickening (MT) and mucosal appearance (MA) in a patient population as detected with cone beam computed tomography (CBCT) and to determine the effects of various disease and demographic factors on MT and MA. STUDY DESIGN: The retrospective study consisted of CBCT images of 1000 maxillary arches in 500 patients. The arches were divided into 3 groups (atrophic, partially atrophic, and nonatrophic) according to the type of the maxillary dental crest. The CBCT scans were assessed to detect the prevalence of maxillary sinus MT and MA. chi2 analysis was used to determine the significance of association of periodontal bone loss (PBL), periapical (PA) status, alveolar crest type, age, and gender on sinus MT and MA. RESULTS: MT was significantly associated with PBL (P = .004), PA status (P = .001), and gender (P < .01). MA was significantly associated with PBL (P = .038), PA status (P = .009), and gender (P < .020). There were no significant associations between age or crest type and either MT or MA. CONCLUSIONS: Periodontal bone loss, PA lesions, and gender may have an association with MT of the maxillary sinus. PMID- 29029990 TI - 2017 EACTS/EACTA Guidelines on patient blood management for adult cardiac surgery. PMID- 29029992 TI - Rebuttal From Drs Koenig and Lakticova. PMID- 29029991 TI - Summary measures of agreement and association between many raters' ordinal classifications. AB - PURPOSE: Interpretation of screening tests such as mammograms usually require a radiologist's subjective visual assessment of images, often resulting in substantial discrepancies between radiologists' classifications of subjects' test results. In clinical screening studies to assess the strength of agreement between experts, multiple raters are often recruited to assess subjects' test results using an ordinal classification scale. However, using traditional measures of agreement in some studies is challenging because of the presence of many raters, the use of an ordinal classification scale, and unbalanced data. METHODS: We assess and compare the performances of existing measures of agreement and association as well as a newly developed model-based measure of agreement to three large-scale clinical screening studies involving many raters' ordinal classifications. We also conduct a simulation study to demonstrate the key properties of the summary measures. RESULTS: The assessment of agreement and association varied according to the choice of summary measure. Some measures were influenced by the underlying prevalence of disease and raters' marginal distributions and/or were limited in use to balanced data sets where every rater classifies every subject. Our simulation study indicated that popular measures of agreement and association are prone to underlying disease prevalence. CONCLUSIONS: Model-based measures provide a flexible approach for calculating agreement and association and are robust to missing and unbalanced data as well as the underlying disease prevalence. PMID- 29029993 TI - Rebuttal From Drs Cardenas-Garcia and Feller-Kopman. PMID- 29029994 TI - POINT: Should All Initial Episodes of Hemoptysis Be Evaluated by Bronchoscopy? Yes. PMID- 29029995 TI - COUNTERPOINT: Should All Initial Episodes of Hemoptysis Be Evaluated by Bronchoscopy? No. PMID- 29029996 TI - Erratum to "A dynamic population model for estimating all-cause mortality due to lifetime exposure history" [Regul. Toxicol. Pharmacol. 67 (2013) 246-251]. PMID- 29029997 TI - Correlation of general and oral health-related quality of life in malocclusion patients treated with a combined orthodontic and maxillofacial surgical approach. AB - PURPOSE: The aim of the study was to collect information about the oral health related quality of life (OHRQoL) after combined orthodontic and maxillofacial surgical treatment as well as its influence on health-related quality of life (HRQoL). MATERIALS AND METHODS: The study includes data from a total of 130 subjects, 65 of whom (21 male, 44 female, mean age at baseline: 24 years, mean age at the time of surgery: 26 years) were compared with control subjects matched on the basis of gender and age. The set of questionnaires used consisted of a questionnaire advanced by the authors including 35 general and treatment-specific questions, and the German version of the validated "Orthognathic Quality of Life Questionnaire" (OQLQ) to analyze the specific OHRQoL, and the SF-36 to measure HRQoL. RESULTS: The main reason for treatment was most often a combination of esthetic and functional complaints. In most cases, the treatment results met the expectations of subjects well or very well, particularly in the areas of aesthetics and masticatory function. Postoperative numbness or paresthesia were present in 59% of patients, especially in the chin and lower lip areas. In all, 20% of subjects considered the temporary restriction of mouth opening as very bothersome. A decrease in HRQoL was noted as compared with the control group in the subscales of "role physical" (p < 0.001), "general health" (p = 0.023), and "role emotional" (p = 0.007). No differences were found in the "physical functioning," "bodily pain," "vitality," "social functioning," and "mental health" subscales. The specific OHRQoL resulted in statistically significant limitations in the patient group for all areas examined. The "oral function" (p < 0.001), "dentofacial aesthetics" (p = 0.005), "social aspects" (p = 0.002), and "awareness of dentofacial aesthetics" (p = 0.004) values were significantly decreased. CONCLUSIONS: Overall, patients expressed a high level of satisfaction and approval with regard to the combined orthodontic and maxillofacial surgical treatment. However, even after combined orthodontic and maxillofacial surgical treatment of malocclusion patients, it is possible to detect smaller limitations with regard to the specific OHRQoL, which may have a negative impact on HRQoL. Based on the results, a participatory decision-making process focusing on the individual therapy-related expectations, desires, and psychological factors of the patient concerning the improvements effected by the treatment appears to be advisable. PMID- 29029998 TI - Introducing the understanding research series. PMID- 29029999 TI - DNA-guided assembly of a five-component enzyme cascade for enhanced conversion of cellulose to gluconic acid and H2O2. AB - Enzymatic fuel cells have received considerable attention because of their potential for direct conversion of abundant raw materials such as cellulose to electricity. The use of multi-enzyme cascades is particularly attractive as they offer the possibility of achieving a series of complex reactions at higher efficiencies. Here we reported the use of a DNA-guided approach to assemble a five-component enzyme cascade for direct conversion of cellulose to gluconic acid and H2O2. Site-specific co-localization of beta-glucosidase and glucose oxidase resulted in over 11-fold improvement in H2O2 production from cellobiose, highlighting the benefit of substrate channeling. Although a more modest 1.5-fold improvement in H2O2 production was observed using a five-enzyme cascade, due to H2O2 inhibition on enzyme activity, these results demonstrated the possibility to enhance the production of gluconic acid and H2O2 directly from cellulose by DNA guided enzyme assembly. PMID- 29030000 TI - Occupational asthma from biological pest control in greenhouses. PMID- 29030001 TI - The occurrence and characteristics of endoscopically unexpected malignant degeneration in large rectal adenomas. AB - BACKGROUND AND AIMS: Large non-pedunculated rectal polyps are most commonly resected by endoscopic mucosal resection (EMR) or transanal endoscopic microsurgery (TEM). Despite pre-procedural diagnostics, unexpected rectal cancer is incidentally encountered within the resected specimen. This study aimed to compare the diagnostic assessment and procedural characteristics of lesions with and without unexpected submucosal invasion. METHODS: A post-hoc analysis of a multicenter randomized trial (TREND study) was performed in which patients with a non-pedunculated rectal polyp of >=3 cm without endoscopic suspicion of invasive growth were randomized between EMR and TEM. RESULTS: Unexpected rectal cancer was detected in 13% (27/203) of patients; 15 after EMR and 12 after TEM. Most consisted of low-risk T1 cancers (78%, n = 18). There were no differences in the diagnostic assessment between lesions with and without unexpected submucosal invasion. Diagnostic biopsies revealed similar rates of high-grade dysplasia (28% [7/25] vs 18% [26/144]). When compared with EMR of adenomas, EMR procedures of unexpected cancers had a lower success rate of submucosal lifting (60% vs 93%, P < .001), were more often assessed as endoscopically incomplete (33% vs 10%, P = .01), and were more frequently terminated prematurely (60% vs 8%, P = .001). CONCLUSIONS: Diagnostic assessment of large non-pedunculated rectal polyps revealed similar characteristics between unexpected cancers and adenomas. Unexpected cancers during EMR were non-lifting in 40%, endoscopically assessed as incomplete in 33%, and terminated prematurely in 60%. In treatment-naive patients, these factors should raise suspicion of malignancy and need discussion in a multidisciplinary team meeting for decision on further treatment strategies. PMID- 29030003 TI - Antegrade ERCP through a spontaneous gastrogastric fistula in a patient with Roux en-Y postsurgical anatomy. PMID- 29030002 TI - An unusual cause of bowel obstruction diagnosed by EUS. PMID- 29030004 TI - Hepatic leukemia-associated macrophages exhibit a pro-inflammatory phenotype in Notch1-induced acute T cell leukemia. AB - Tumor-associated macrophages (TAMs) are well accepted and the pathological role of macrophages in hematopoietic malignancies have been proposed. Hepatomegaly is frequently observed in T cell acute lymphoblastic leukemia (T-ALL) patients with poor prognosis. However, the role of leukemia-associated macrophages (LAMs) in hepatic microenvironment remains unclear. Here, the characteristics of hepatic LAMs (H-LAMs) were studied in Notch1 induced T-ALL model. Increase in proportion and absolute counts of H-LAMs was detected with infiltration of inflammatory cells. Furthermore, H-LAMs exhibited a more M1-like phenotype distinct from that of TAMs in hepatocellular carcinoma and LAMs from BM or spleen in leukemia. Moreover, H-LAMs expressed increased level of cytokines in charge of recruiting inflammatory cells, which contributed to pro-inflammatory hepatic microenvironment. PMID- 29030005 TI - FOXP3, ICOS and ICOSL gene polymorphisms in systemic sclerosis: FOXP3 rs2294020 is associated with disease progression in a female Italian population. AB - Systemic sclerosis (SSc), an autoimmune disorder, is characterized by vasculopathy, inflammation, progressive perivascular and interstitial fibrosis. Its pathogenesis is largely unknown, however strong evidences suggest that genetic predisposition may contribute to SSc development. Several gene polymorphisms involved in regulatory T cell function have been identified in many autoimmune diseases, including SSc. Moreover, dysregulation of co-stimulatory and/or co-inhibitory signals, including ICOS signalling, can lead to autoimmunity. The aim of the present study was to investigate the association of the FOXP3 rs2294020, ICOS rs6726035 and ICOSL rs378299 SNPs with both the susceptibility and the progression to SSc in an Italian case-series of patients. SNP genotyping results were successfully obtained from a total of 350 subjects including 166 individuals with SSc and 184 healthy controls. Although analysis tests did not show any significant associations between the SNPs under study and susceptibility to SSc, the occurrence of FOXP3 rs2294020 in female patients was associated with decreased time to progression from early to definite SSc (allelic model: HR=1.43; CI=1.03-1.99; p=0.03; dominant model: HR=1.54; CI=1.04-2.28; p=0.03). The inclusion of presence of ACA autoantibodies in the model did not significantly change the estimates. No conclusions can be drawn for the susceptibility to the disease or the time to progression in men due to the low statistical power. This study provides evidence of the association of rs2294020 with SSc evolution in female patients, modulating the time of progression from the diagnosis of early SSc to the diagnosis of definite SSc, while no effect on SSc susceptibility per se was found. rs2294020 may be considered a disease modifying gene-variant rather than a disease-susceptibility SNP in SSc. PMID- 29030006 TI - Dexmedetomidine mitigate acute lung injury by inhibiting IL-17-induced inflammatory reaction. AB - Interleukin-17 (IL-17) is considered to play an important role in the pathogenesis of a number of inflammatory conditions. Previous studies demonstrated that intranasal injections of IL-17 resulted in pulmonary inflammation and lung damage, we therefore hypothesize that dexmedetomidine, a potent alpha2 adrenergic receptor agonist that shows anti-inflammation effects in several animal models of inflammation, would attenuate IL-17 induced lung injury. We examined the lung damage using a histological approach, and assessed the number of lung-infiltrating neutrophils in the bronchoalveolar lavage fluid. We then compared the production of selected cytokines by measuring their serum concentration after various treatments. Finally, we evaluated the expression of selected inflammatory genes and activation of NF-kappaB in the lung epithelial cells, using real-time PCR and western blot assay, respectively. In every aspect of pulmonary inflammation investigated, dexmedetomidine significantly and dose dependently attenuated the inflammatory effects of IL-17. Our results not only give a comprehensive description of the protective action of dexmedetomidine on IL-17 induced acute lung injury, but also provide insights to the underlying cellular and molecular mechanisms. PMID- 29030007 TI - Pretreatment of a matrix metalloproteases inhibitor and aprotinin attenuated the development of acute pancreatitis-induced lung injury in rat model. AB - OBJECTIVE: Acute lung injury (ALI) is one of the most common extra-pancreatic complications of acute pancreatitis. In this study, we examined the protective effect of protease inhibitor aprotinin and a matrix metalloproteinase inhibitor (MMPi) on pulmonary inflammation in rats with severe pancreatitis-associated ALI. METHOD: A rat model of acute pancreatitis (AP) was established by injecting sodium glycodeoxycholate (GDOC) into the pancreatic duct. Pharmacological interventions included pretreatment with a protease inhibitor aprotinin (10mg/kg) and a matrix metalloproteinase inhibitor (MMPi, 100g/kg). The extent of pancreatic and lung injury and systemic inflammation was assessed by examinations of blood, bronchoalveolar lavage (BAL), and lung tissue. Pancreatic or lung tissue edema was evaluated by tissue water content. Pulmonary arterial pressure and alveolar-capillary membrane permeability were evaluated post-injury via a catheter inserted into the pulmonary artery in an isolated, perfused lung model. RESULTS: Pre-treatment with aprotinin or MMPi significantly decreased amylase and lactate dehydrogenase (LDH), and the wet/dry weight ratio of the lung and pancreas in AP rats. Compared to the GDOC alone group, administration of aprotinin or MMPi prevented pancreatitis-induced IL-6 increases in the lung. Similarly, treatment with aprotinin or MMPi significantly decreased the accumulation of white blood cells, oxygen radicals, nitrite/nitrates in both blood and BAL, and markedly reduced lung permeability. CONCLUSION: Pretreatment with either aprotinin or MMPi attenuated the systemic inflammation and reduced the severity of lung and pancreas injuries. In short, our study demonstrated that inhibition of protease may be therapeutic to pulmonary inflammation in this GDOC induced AP model. PMID- 29030008 TI - Assessment of leukocyte activity in mice devoid of the glucocorticoid receptor in the noradrenergic system (GRDBHCre). AB - Disturbances in brain monoamines, overactivity of the hypothalamo-pituitary adrenal (HPA) axis and pro-inflammatory tendency in the immune system are the key features of depressive disorders. Recently, several murine lines with mutations in glucocorticoid receptors (GRs) have been generated and these animals may be utilized for study depressive-like disorders. In the present study, we have investigated whether selective ablation of GRs in noradrenergic neurons affects functional properties of leukocytes and redirects them towards pro-inflammatory activity. Transgenic mice selectively devoid of GRs on noradrenergic cells were constructed using the Cre/loxP approach. Peritoneal leukocytes were collected from mutant and wild type (WT) animals of both sexes and were cultured in vitro for 24h both in basal conditions and after application of selected pro- or anti inflammatory stimuli. Metabolic activity and adherence were measured in basal conditions. Nitric oxide (NO) synthesis and arginase (ARG) activity were assessed as the markers of functional status of the cells. Because adult mutant mice lack adrenal medulla and thereby peripheral adrenaline, we modulated pro- and anti inflammatory culture conditions by addition of noradrenaline (10-6M). Finally, effects of in vivo pro-inflammatory challenge (with intraperitoneal administration of lipopolysaccharide) on properties of leukocytes were assessed 24h (in both sexes) and 48h later (in males only). The experiments indicated that selective ablation of GR in noradrenergic neurons did not affect fundamental properties of peritoneal leukocytes and exerted effects only under conditions of selected pro- or anti-inflammatory stimuli in vitro. Stronger response to pro inflammatory stimulation in terms of NO synthesis and ARG activity may suggest pro-inflammatory tendency in mutant mice. In vivo inflammatory challenge failed to show any effect of GR ablation on selected parameters of leukocyte activity. Both in vitro studies and in vivo challenge revealed mainly sex-related differences in leukocyte activity. PMID- 29030009 TI - Immunobiological efficacy and immunotoxicity of novel synthetically prepared fluoroquinolone ethyl 6-fluoro-8-nitro-4-oxo-1,4-dihydroquinoline-3-carboxylate. AB - The present study examined the cytotoxicity, anti-cancer reactivity, and immunomodulatory properties of new synthetically prepared fluoroquinolone derivative 6-fluoro-8-nitro-4-oxo-1,4-dihydroquinoline-3-carboxylate (6FN) in vitro. The cytotoxicity/toxicity studies (concentrations in the range 1-100MUM) are focused on the cervical cancer cells HeLa, murine melanoma cancer cells B16, non-cancer fibroblast NIH-3T3 cells and reconstructed human epidermis tissues EpiDermTM. The significant growth inhibition of cancer cells HeLa and B16 was detected. The cytotoxicity was mediated via apoptosis-associated with activation of caspase-9 and -3. After 72h of treatment, the two highest 6FN concentrations (100 and 50MUM) induced toxic effect on epidermis tissue EpiDermTM, even the structural changes in tissue were observed with concentration of 100MUM. The effective induction of RAW 264.7 macrophages cell-release of pro- and anti inflammatory TH1, TH2 and TH17 cytokines, with anti-cancer and/or anti-infection activities, respectively, has been revealed even following low-dose exposition. PMID- 29030010 TI - LPS priming in early life decreases antigen uptake of dendritic cells via NO production. AB - Immunological mechanisms of hygiene hypothesis are expected to develop a novel strategy for allergy prevention. Although a large number of studies has investigated the relation between allergies and infection, little is known about the influence of the exposure to infections on antigen uptake by dendritic cells (DCs). In this study, we examined the effect of lipopolysaccharide (LPS) priming in early life on the antigen uptake ability of DCs by using an original mouse model. LPS priming in juvenile mice decreased the migration of antigen-capturing CD11c+ cells in the lymph nodes, but not in aged mice. Besides, the bone marrow derived DCs (BMDCs) from juvenile LPS-primed mice had the poor antigen uptake ability, and constitutively produced NO through the inducible nitric oxide synthase (iNOS). Interestingly, the LPS priming-induced poor antigen uptake of BMDCs was mimicked by the NO donor, and recovered by the iNOS inhibitor. Additionally, LPS priming in juvenile mice prevented the allergic reactions, but not in aged mice. Our results suggested that an exposure to infections in early life prevents allergy through the alteration of the BM cells fate that is to induce the differentiation of BM cells into inhibitory DCs such as NO-producing DCs. PMID- 29030011 TI - Influence of Pasteurella multocida Toxin on the differentiation of dendritic cells into osteoclasts. AB - Dendritic cells (DC) are antigen-presenting cells that connect the innate and adaptive immune system to ensure an efficient immune response during the course of an infection. Recently, DC came into the spotlight as a potential source of osteoclast progenitors, especially under (auto)inflammatory conditions. The virulence factor Pasteurella multocida Toxin (PMT) causes atrophic rhinitis in pigs, a disease characterised by a severe reduction of nasal bone. Our group and others have shown the potential of PMT in mediating differentiation of monocytes/macrophages into bone-resorbing osteoclasts. However, whether DC are target cells for PMT-induced osteoclast differentiation, is currently unknown. Using different murine DC model systems, we investigated the ability of PMT to induce osteoclast formation in DC. Similar to our previous observations in macrophages, PMT was endocytosed by DC and triggered intracellular deamidation of residue Q209 of the Gq alpha subunit. Still, PMT failed to induce prolonged secretion of osteoclastogenic cytokines and osteoclast formation; instead PMT treated DC secreted interleukin-12 (IL-12), an inhibitor of osteoclastogenesis. In this study, we show that in comparison to bone marrow-derived macrophages, PMT induces maturation of DC through increased expression of the activation markers CD80 and CD86. As maturation of DC prevents their transdifferentiation into osteoclasts, we hypothesize that PMT, a potent osteoclastogenic toxin, fails to trigger osteoclastogenesis in DC due to its effect on DC maturation and IL-12 production. PMID- 29030013 TI - Outcomes of patients at estimated low surgical risk undergoing transcatheter aortic valve implantation with balloon-expandable prostheses. AB - INTRODUCTION AND OBJECTIVES: Transcatheter aortic-valve implantation (TAVI) is an accepted treatment for patients with severe aortic stenosis and high surgical risk. However, there is lack in data about TAVI in low-risk patients that are already being treated with this therapy in some clinical contexts. METHODS: A retrospective analysis of patients treated with transfemoral TAVI using Edwards Sapien prosthesis in one center was performed, classifying the patients into three groups according to the surgical risk (high/intermediate/low risk for STS score>8/4-8/<4). Clinical characteristics, procedure and follow-up outcomes were collected, comparing the results between low and high surgical risk groups. RESULTS: 89 TAVIs using Edwards balloon expandable prosthesis were performed (9 Sapien XT and 80 Sapien 3 valves were implanted). 40 patients (45%) presented a STS score<4, while 33 (37%) had a STS>8. Low-risk patients were significantly younger and had lower rates of coronary artery disease, peripheral vascular disease, pulmonary lung disease and atrial fibrillation. There were no significant differences in most of the technical variables of the procedure, apart from vascular complications and complete left bundle branch block after valve implant, which were higher in the group with STS>8. Patients of low risk presented shorter hospital stay (2,91+/-1,6, vs 4,8+/-3,9 days), with lower rates of mortality at mid- and long follow-up (death from any cause 15,2% vs 0%, p 0,04). CONCLUSIONS: TAVI in low-risk patients is safe and associated with better outcome at mid and long-term follow-up compared to high-risk patients. PMID- 29030012 TI - MafB enhances efferocytosis in RAW264.7 macrophages by regulating Axl expression. AB - The transcription factor MafB is involved in cellular differentiation and phagocytosis in macrophages. Macrophages phagocytose apoptotic cells in vivo; this process, which is known as efferocytosis, requires Axl receptor tyrosine kinase (Axl) activity. However, the association between MafB and efferocytosis, as well as that between MafB and Axl, in macrophages is unknown. We hypothesized that MafB modulates macrophage efferocytosis by regulating Axl expression. Fluorescent-labeled apoptotic thymocytes were added to RAW264.7-MafB-shRNA and control cells, and the proportion of phagocytosis-positivey fluorescence microscopy and flow cytometry. In addition, Axl mRNA and protein were quantified by real-time PCR and western blotting in each group. RAW264.7-MafB-shRNA cells were transfected with a plasmid expressing green fluorescent protein (GFP)-tagged Axl or a control empty plasmid expressing only GFP. The capacity for phagocytosis of apoptotic cells was assessed in GFP-positive cells gated based on fluorescence intensity. In RAW264.7-MafB-shRNA cells, capacity for phagocytosis of apoptotic thymocytes was significantly reduced compared with that of control cells, as determined by fluorescence microscope and flow cytometry. Axl mRNA and protein expression was significantly reduced in RAW264.7-MafB-shRNA cells relative to control cells. Furthermore, the capacity of RAW264.7-MafB-shRNA cells, transfected with an Axl-expressing plasmid, for phagocytosis of apoptotic thymocytes was significantly greater than that of cells transfected with the control plasmid. Collectively, the present findings indicate that MafB enhances efferocytosis by regulating Axl expression in RAW264.7 macrophages. PMID- 29030014 TI - Nurses' intention to resign and avoidance of emergency department violence: A moderated mediation model. AB - BACKGROUND: Studies that examined the negative impact of violence in emergency departments on nurses' leave and avoidance behavior are well-documented. However, few studies provided an integrated model of how and when violence influences their leave and avoidance behavior. PURPOSE: The study adopted Affective Events Theory to propose and examine a model of violent events, negative emotions, and (leave and avoidance) behaviors on nurses in emergency departments and further analyzed whether the model is salient to nurses' occupational burnout, nursing experience, and nursing rank. METHOD: The sample included 123 emergency department nurses at a teaching hospital in northern, Taiwan. RESULTS: All participants had experienced violent incidents within the preceding 6 months. Moderated mediation analysis suggested that nurses experienced one of two emotional processes following violent incidents: "violence-negative feelings toward work-intention to resign" or "violence-negative emotion and physical symptoms-avoidance tendencies." Moreover, nurses with high burnout levels expressed weaker intention to resign after violent incidents, while nurses with more experience and higher rank were less likely to avoid violence after violent incidents. CONCLUSION: Emergency nurses do not simply elect to escape but may engage in avoidance behavior. This study revealed that how violent incidents affect nurses' resignation or avoidance behaviors depends on how they feel. Occupational burnout and nurses' attributes affected their behavior. PMID- 29030015 TI - Progressive white-matter demyelination in delayed CO poisoning encephalopathy. PMID- 29030016 TI - Does a two-year period of orthokeratology lead to changes in the endothelial morphology of children? AB - PURPOSE: To compare changes in endothelial morphology in the central and superior cornea in subjects wearing single-vision spectacles and orthokeratology lenses over two years. METHODS: Endothelial images of the two locations of 99 subjects (6-12 years) from completed myopia control studies were analysed. Endothelial cell density (ECD), coefficient of variation in cell size (CV), and hexagonality (HEX) before and two years after treatment were compared between the two groups of subjects. RESULTS: Baseline ECD and CV in the central cornea were slightly lower than those in the superior cornea, but no significant difference in HEX was found in the two corneal locations. After two years, reduction in ECD and increase in CV were only significant in the central cornea, but not in the superior cornea. Reduction in HEX was significant in both corneal locations. Subjects receiving orthokeratology had smaller reduction in ECD in the central cornea compared to the controls (orthokeratology: 56+/-94 cells/mm2; control: 98+/-91 cells/mm2, p=0.024), otherwise, there were no significant differences in the changes in endothelial morphology in the two corneal locations between the two groups of subjects. CONCLUSIONS: The current study confirmed that there were differences in endothelial morphology of central and superior cornea of Chinese children aged 6-12 years. The morphological response to normal ageing differed between the two corneal locations as reduction in cell density and polymegathism were found only in the central cornea whilst pleomorphism was found in both locations. Orthokeratology lens wear had minimal effect on the developmental changes in endothelial morphology. PMID- 29030017 TI - The effect of ageing on the ocular surface parameters. PMID- 29030018 TI - Reply to the Letter to the editor. PMID- 29030019 TI - In situ different antioxidative systems contribute to the site-specific methylmercury neurotoxicity in mice. AB - Methylmercury (MeHg), an environmental toxicant, induces site-specific neurotoxicity in adult human and animal models. In this study, we demonstrated that MeHg-induced neuropathological changes of the brain in mice were remarkable in the cerebrocortical neurons of deeper layers (dl-CCNs), but not in the CCNs of shallow layers (sl-CCNs) and the hippocampal neurons of cornu ammonis 1 (CA1 HNs). Total mercury concentration was not corresponded to the pathological changes. Here, we investigated the cause of such site-specific MeHg neurotoxicity with a focus on in situ antioxidative systems due to its critical role in MeHg intoxication. We performed in situ analyses of antioxidative enzymes expression using RT-qPCR analyses from laser microdissected sl-CCNs, dl-CCNs, and CA1-HNs samples, and immunohistochemistry. The results of antioxidative enzymes expression analyses demonstrated the lowest basal expression levels of mRNA and proteins, especially manganese superoxide dismutase (Mn-SOD) and glutathione peroxidase 1 (GPx1) in dl-CCNs. In addition, the Mn-SOD expression showed a lowest response to MeHg in dl-CCNs. We also performed enzymatic activity analyses for antioxidative enzymes using separated cerebral cortex and hippocampus. The results of enzymatic activity analyses indicate that the expression levels of antioxidative enzymes reflect their enzymatic activities. Immunostaining of thymidine glycerol, a sensitive oxidative stress marker, showed selectively increased expression in dl-CCNs after the exposure to MeHg but not in sl-CCNs and CA1-HNs, suggesting the occurrence of MeHg-induced oxidative stress in dl-CCNs. The differences in MeHg-induced occurrence of oxidative stress and pathological changes in sl-CCNs, dl-CCNs, and CA1-HNs corresponded to the basal level of Mn SOD and GPx1 expression and the different protective response of Mn-SOD expression to MeHg. These findings suggest that the in situ different antioxidative systems play a role in the site-specific neurotoxicity of MeHg. PMID- 29030020 TI - The trajectory of positive psychological change in a head and neck cancer population. AB - A stressful event may be sufficient to challenge a strongly held set of assumptions about the world and the self. In some people this may lead to post traumatic stress disorder (PTSD) and in others to positive psychological change (PPC), whereby a person's reactions to the challenge are beneficial. Little research has investigated PPC in people who have had head and neck cancer (HNC). The aim of this study was to identify demographic, clinical, and psychological factors associated with PPC over time. A cross-sequential study collected data over 5 years. Participants were sent the Silver Lining Questionnaire (SLQ; a measure of PPC), the University of Washington HNC quality of life measure, and the Medical Outcomes Short-Form 12 each year. Additional data were collected from clinical records. Analysis using linear mixed-effects modelling revealed that participants with lower stage tumours and those who only had a surgical intervention reported greater PPC over time. Multivariable modelling adjusting for psychosocial variables found that PPC had a quadratic relationship with time since diagnosis, increasing initially and levelling off after 18 months. These findings build on the minimal PPC research with people following HNC. In particular it demonstrates a model of trajectories for the development of PPC longitudinally over time. PMID- 29030021 TI - Hypoxic volume evaluated by 18F-fluoromisonidazole positron emission tomography (FMISO-PET) may be a prognostic factor in patients with oral squamous cell carcinoma: preliminary analyses. AB - Tumour hypoxia can be detected by 18F-fluoromisonidazole positron emission tomography (FMISO-PET). Few studies have assessed the relationships of new PET parameters, including hypoxic volume (HV), metabolic tumour volume (MTV), and total lesion glycolysis (TLG), with 5-year survival of patients treated surgically for oral squamous cell carcinoma (OSCC). This study evaluated the relationships between these PET parameters and 5-year survival in OSCC patients. Twenty-three patients (age 42-84 years; 15 male, eight female) with OSCC underwent FMISO- and 18F-fluoro-2-deoxyglucose (FDG)-PET computed tomography before surgery. All of them underwent radical surgery and were followed up for more than 5 years. The FDG-PET maximum standardized uptake value (SUVmax), HV, MTV, and TLG were measured. The ability of PET parameters to predict disease-free survival (DFS) and loco-regional recurrence (LR) was evaluated using receiver operating characteristic curve analysis. During the follow-up period, five of the 23 patients (22%) died and six (26%) experienced LR. Although FDG-PET SUVmax was not significantly associated with DFS or LR, HV correlated significantly with both DFS and LR. TLG, but not MTV, was significantly associated with DFS; however neither MTV nor TLG was related significantly to LR. In conclusion, tumour HV may predict outcomes in patients with OSCC. PMID- 29030023 TI - On universal coding events in protein biogenesis. AB - The complete ribosomal protein synthesis cycle and codon-amino acids associations are universally preserved in all life taxa on Earth. This process is accompanied by a set of hierarchically organized recognition and controlling events at different complexity levels. It starts with amino acid activation by aminoacyl tRNA synthetases (aaRS) followed by matching with the acceptor units of their cognate tRNAs ("operational RNA code") and ribosomal codon-anticodon pairing of messenger RNA ("triplet code"). However, this codon-anticodon matching is possible only when protein translation machinery (translation factors, ribosome) accepts an esterified amino acid. This capacity ("charge code") correlates mainly with the amino acid nature and the identity elements in the tRNA 3D structure. A fourth potential "folding code" (also referred as "stereochemical code") between the translation dynamics, sequence composition and folding of the resulting protein can also be defined in the frame of the 'Anfinsen dogma' followed by post translational modifications. All these coding events as well as the basic chemistry of life are deemed invariant across biological taxa due to the horizontal gene transfer (HGT) making the 'universal genetic code' the 'lingua franca' of life of earth. When cells (or organelles) are prevented from transmitting genetic information (i.e., HGT) the deviations in the above mentioned coding events become inevitable. A better understanding of these codes, in particular the mechanisms of their conservation in the context of HGT could provide a guide for the experimental engineering1 of the ribosomal protein biosynthesis machinery. This is highly relevant, among others, in attempts to create synthetic life forms in genetic isolation by using tailored "minimal genomes" and may explain the necessity for multiple coding evens in nature. PMID- 29030022 TI - Impact of support networks for breastfeeding: A multicentre study. AB - BACKGROUND: The rates of breastfeeding worldwide are slowly improving since 1996. Europe is still trailing behind the global breastfeeding incidence and prevalence rates. Thus, breastfeeding promotion, protection, prolongation and support have become an important challenge as breastfeeding sharply decreases in the first six months of life. OBJECTIVES: The aim of this project is to determine, assess and identify the real impact of breastfeeding support networks in Murcia (Spain). METHODS: After searching unsuccessfully for a validated questionnaire, a specific one was developed and validated for measuring the impact of formal and informal support networks through five dimensions: satisfaction, consultation, experience, problems and support. The questionnaire was provided to 500 mothers with experience in breastfeeding, who brought their children to baby paediatricians between 2 June and 27 November 2014. Upon completion of the survey and fieldwork, a detailed statistical analysis was conducted. RESULTS: The degree of satisfaction perceived by the users of the services of support breastfeeding networks is remarkable. In addition, mothers who clarified their doubts and discussed their problems with health professionals and/or breastfeeding support networks were more likely to breastfeed for a longer duration compared to those who did not (p=0.005). Furthermore, mothers who sought support in breastfeeding are more likely to breastfeed for more than 6 months (p<0.0005). CONCLUSION: Based on this information, we conclude that breastfeeding support networks have a positive influence in the duration of a women's decision to breastfeed. PMID- 29030024 TI - Neurodevelopmental outcomes at 3 years old for infants with birth weights under 500 g. AB - BACKGROUND: Marked improvements have been achieved in the survival of extremely low birth weight infants, but survival rates and prognoses of extremely small infants with birth weights <=500 g remain poor. The aim of this study was to clarify long-term outcomes for surviving infants with birth weights <=500 g. METHODS: The study population comprised fetuses of gestational age >=22 weeks, expected live- or stillbirth weight <=500 g, and birth date between 2003 and 2012. Developmental assessments were performed prospectively at 3 years old. RESULTS: Data were obtained for 21 fetuses, including 10 live births and 11 stillbirths. Of the 10 live births, median gestational age was 25.2 weeks (range, 22.4-27.1 weeks), median birth weight was 426 g (range, 370-483 g), and two neonates died before discharge. One infant with severe asphyxia died within 12 h and another infant with Down syndrome died at 34 days. The survival rate was thus 80%. All surviving infants were small for gestational age. Seven of the 8 surviving infants (88%) weighed less than 2500 g at a corrected age of 40 weeks. Seven infants were available for developmental assessments at 3 years old. One infant could not be followed. Two of those seven infants (29%) showed normal development, three infants (42%) showed mild neurodevelopmental disability, and two infants (29%) showed severe neurodevelopmental disability. One infant had periventricular leukomalacia and cerebral palsy. Two of the seven infants (29%) had short stature (<3 SD) at 3 years old. CONCLUSION: Although the survival rate among live births was good (80%) in this study, neurodevelopmental outcomes remained poor in infants with birth weights <=500 g. Further large studies are needed to assess long-term outcomes for extremely small infants. PMID- 29030025 TI - Emerge of blaNDM-1 and blaOXA-48-like harboring carbapenem-resistant Klebsiella pneumoniae isolates from hospitalized patients in southwestern Iran. AB - BACKGROUND: One of the most important emerging carbapenem-resistant bacteria is Klebsiella pneumoniae (K. pneumoniae). The present study aimed to investigate the antibiotic susceptibility pattern of K. pneumoniae isolates and detection of carbapenemase producing K. pneumoniae obtained from Iranian hospitalized patients. METHODS: This cross-sectional study was performed on 211 K. pneumoniae isolates which were recovered from different clinical specimens from 2014 to 2015. Modified Hodge test (MHT) and double disk synergy test (DDST) were done for detection of carbapenemase and metallo-beta-lactamase (MBL) producing K. pneumoniae. The presence of antibiotic resistance determinants was investigated by polymerase chain reaction (PCR) method. RESULTS: The results of antibiotic susceptibility showed that all isolates were resistant to ampicillin, and then mostly resistant to piperacillin and ceftazidime with 76.3% and 66.8%, respectively. On the other hand, the highest sensitivity was toward polymyxin B, followed by carbapenems. Of 29 carbapenem-resistant isolates, all were high-level imipenem-resistant isolates (Minimum inhibitory concentration >=4), except 4 isolates. The results of MHT and DDST showed that 93.1% (27/29) of carbapenem resistant isolates were carbapenemase and MBL producing isolates, respectively. The presence of blaNDM-1 and blaOXA-48-like genes was detected in 27 (10.9%) and 2 (0.9%) isolates, respectively. CONCLUSION: This is the first identification of blaNDM-1 and blaOXA-48-like in K. pneumoniae in Southwestern Iran and the highest reported prevalence of blaNDM in this bacterium from Iran. Since carbapenem resistant isolates containing New Delhi metallo-beta-lactamase 1 (NDM-1) were almost resistant to all the tested antibiotics, the resistance due to this gene may be increased in the near future as a potential health threat. PMID- 29030026 TI - Nephroprotective effect of electrolyzed reduced water against cisplatin-induced kidney toxicity and oxidative damage in mice. AB - BACKGROUND: Cisplatin is a potent chemotherapeutic drug for cancer therapy, but it has serious side effects in clinical treatment, particularly nephrotoxicity. The purpose of this study was to evaluate the protective effect of electrolyzed reduced water (ERW) on renal injury caused by cisplatin. METHODS: Animals were divided into four groups as follows: normal control group, cisplatin control group, ERW control group and ERW + cisplatin group. Each group comprised 10 animals, which were orally treated with normal saline or ERW daily companion by administration of one dose of cisplatin for 28 days. Animals in the cisplatin group received an intraperitoneal single-dose injection of cisplatin (20 mg/kg body weight) as a single i.p. dose on the 25th day of the experiment. We determined the hydration state in urine and the level of serum markers of kidney function, the levels of glutathione (GSH) and thiobarbituric acid-reactive substances (TBARS) levels and the activities of glutathione peroxidase (GPx), glutathione reductase (GR), catalase (CAT) and superoxidase dismutase (SOD) in kidney and histopathological changes. RESULTS: After administration of ERW, the reduced urinary osmolality was increased and elevated Na+, K+, Mg2+ and Ca2+ levels in urine were significantly decreased in cisplatin-induced renal injury mice. Besides, the results demonstrated that significantly decreased elevated serum levels of creatinine and blood urea nitrogen (BUN) and the levels of TBARS in the kidneys that were induced by cisplatin. Moreover, ERW treatment was also found to markedly increase (p < 0.05) the activities of GPx, GR, CAT and SOD, and to increase GSH content in the kidneys. Histopathology showed that ERW protects against cisplatin-induced renal injury to both the proximal and distal tubules. CONCLUSION: ERW exhibits potent nephroprotective effects on cisplatin-induced kidney damage in mice, likely due to both the increase in antioxidant-defense system activity and the inhibition of lipid peroxidation. PMID- 29030027 TI - Comparison of right ventricular measurements by perioperative transesophageal echocardiography as a predictor of hemodynamic instability following cardiac surgery. AB - BACKGROUND: The relationship between perioperative right ventricular (RV) performance and hemodynamic instability after cardiac surgery seemed less portrayed. Therefore, we sought to elucidate this relationship and compare the accuracy of different RV systolic indices in predicting outcome of cardiac surgery. METHODS: This study enrolled consecutive patients referred for cardiac surgeries. Exclusion criteria were non-sinus rhythm or contraindications to transesophageal echocardiography (TEE). TEE exam and simultaneous pulmonary hemodynamics were recorded in two stages: after induction of anesthesia and before sternotomy (stage 1), and after sternal closure (stage 2). RV measurements performed offline included fractional area change (RVFAC), tricuspid annular plane systolic excursion (TAPSE), peak systolic tricuspid annular velocity (RVS'), myocardial performance index (RVMPI), and global longitudinal strain (RVGLS). The end point was defined as prolonged use (>24 h) of postoperative inotropic agent in the intensive care unit (ICU). RESULTS: The study population included 68 patients (mean age 61 +/- 11 y; 49 men). Twenty-two of these patients (32%) were administered inotropic agents for a prolonged period with a mean duration of 63.9 +/- 5.3 h, accompanied with significantly longer ventilator use (p = 0.006) and longer ICU stay (p = 0.001) than patients without a prolonged inotropic agent use. Multivariable analysis demonstrated that only RVGLS in either stage 1 (odds ratio [OR] 1.11, p = 0.048) or stage 2 (OR 1.15, p = 0.018) was significantly associated with the outcome, especially a RVGLS > -13.5% in stage 2 demonstrating high risk of prolonged inotropic agent use after cardiac surgery (OR 7.37, p = 0.016). CONCLUSION: RVGLSs performed using perioperative TEE are reliably associated with hemodynamic instability following cardiac surgery. This finding adds substantial information to postoperative critical care. PMID- 29030028 TI - [Alberic Pont, the great war and the "broken faces"]. AB - The First World War and the number of facial injuries made specialized trauma centers necessary. Alberic Pont was trained both in medicine and dentistry. He founded in Lyon one of the first French specialized wards, which received more than 7000 soldiers overall. Through his charisma, his skills, his creativity and his generosity, he must be considered as a symbol among the pioneers of maxillo facial surgery, which was then at its early stage. The centenary of World War I is the occasion to shed light on this man who dedicated his career to those who were renamed "broken faces". PMID- 29030029 TI - Improving free-flap survival using intra-operative heparin: Ritualistic practice or evidence-base medicine? A systematic review. AB - INTRODUCTION: The failure rate of free flaps is approximately 5%, mostly due to thrombosis of microvascular anastomosis. A number of pharmacological agents have been tested in order to enhance the patency of microvascular anastomosis and so to as extend the survival of free flaps. One of them is heparin, a very commonly used anticoagulant. However, there exists no consensus on its use in microsurgery as concerns time of introduction (pre-, intra- or post-operative), recommended dosage, or duration of utilization. The aim of this study was to determine whether or not the use of intra-operative heparin, in its systemic or topical forms, can bring about improved survival of free flaps, and if and when it should be recommended in microsurgery. MATERIAL AND METHODS: A systematic review on the PUBMED database enabled us to identify articles evaluating the benefits of intra operative heparin with regard to free-flap survival. All in all, fifteen articles in animal and human research were selected. RESULTS: As far as animal research is concerned, 9 studies out of 11 showed the superiority of topical intra-operative heparin compared to saline in improving free-flap survival rates through improved patency of the anastomosis. As regards systemic intra-operative heparin, on the other hand, only two trials out of four yielded favorable results. In clinical research in humans, there has been no prospective randomized trial studying the action of topical intra-operative heparin in vessel irrigation of ex-vivo free flaps before vascular repermeabilisation. However, the preliminary results of four trials seem to provide positive arguments for this practice. CONCLUSION: The use of systemic per-operative heparin (intravenous injection) does not improve the survival of free flaps in either animal models or humans. In animal models, however, the use of topical intra-operative heparin (vessel irrigation) has been shown to improve the free-flap survival rate by avoiding thrombosis of microvascular anastomosis. Finally, in clinical studies concerning humans, as of now no prospective randomized trial has proven that use of topical intra operative heparin to ensure vessel irrigation in ex-vivo flaps is likely to increase free-flap survival. Studies should be conducted to decide whether or not to validate a rather ritualistic practice that consists in irrigating the relevant vessels before anastomosis; does it or does it not improve the patency rate? PMID- 29030030 TI - Oncological safety of nipple-sparing prophylactic mastectomy: A review of the literature on 3716 cases. AB - INTRODUCTION: The objective of our study was to evaluate the risk of cancer after prophylactic nipple-sparing mastectomy (PNSM). MATERIAL AND METHODS: The PubMed database was consulted using the following key-words: "nipple-sparing mastectomy", "prophylactic", "locoregional recurrence", "oncological risk". Articles published between January 1995 and December 2016 were searched. RESULTS: Out of the 270 articles found, 19 were included. Overall, 15 studies were retrospective, 2 prospective, 2 prospective and retrospective and 3 were multicentric. All told, they involved 3890 patients corresponding to 6786 mastectomies, among which the total number of prophylactic nipple-sparing mastectomies was 3716. Average age of the patients was 44.4years and average follow-up was 38.4months (8-168months); 29.4% of them had a BRCA 1 or 2 mutation; 85 and 15% underwent prosthetic and autologous reconstructions, respectively. Average cancer rates exterior to and within the nipple areolar complex (NAC) were 0.2 and 0.004%, respectively. The overall average rate of histological pre malignant lesions in the nipple areolar complex was 1.5%. The overall complication rate was 20.5%, and necrosis rates of the nipple areolar complex and the skin were 8.1 and 7.1%, respectively. CONCLUSION: In prophylactic breast surgery, conservation of the nipple areolar complex does not seem to increase the risk of cancer development. However, short follow-up time and the different methodologies applied in the different studies presently preclude generalization of the technique. PMID- 29030031 TI - Thermal desorption comprehensive two-dimensional gas chromatography coupled to time of flight mass spectrometry for vapour phase mainstream tobacco smoke analysis. AB - A thermal desorption comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (TD-GC*GC-TOFMS) method has been developed for the analysis of mainstream tobacco smoke (MTS) vapour phase (VP). The selection process of the sample introduction approach involved comparing the results obtained from three different approaches: a) use of gas sampling bag followed by SPME (Tedlar(r)-SPME), b) gas sampling bag followed by TD (Tedlar(r)-TD), and c) sampling directly on TD sorbents (Direct-TD). Six different SPME fibers and six different TD sorbent beds were evaluated for the extraction capacities in terms of total number of peaks and related intensities or peak areas. The best results were obtained for the Direct-TD approach using Tenax TA/Carbograph1TD/Carboxen1003 sorbent tubes. The optimisation of TD tube desorption parameters was carried out using a face-centered central composite experimental design and resulted in the use of the Tenax TA/Carbograph 1TD/Carboxen 1003 sorbent with a 7.5min desorption time, a 60mL/min tube desorption flow, and a 250 degrees C tube desorption temperature. The optimised method was applied to the separation of MTS-VP constituents, with 665 analytes detected. The method precision ranged from 1% to 15% for over 99% of identified peak areas and from 0% to 3% and 0% to 1% for both first (1tR) and second (2tR) dimension retention times, respectively. The method was applied to the analyses of two cigarette types differing in their filter construction. Principal component analysis (PCA) allowed a clear differentiation of the studied cigarette types (PC1 describing 94% of the explained variance). Supervised Fisher ratio analysis permitted the identification of compounds responsible for the chemical differences between the two sample types. A set of 91 most relevant compounds was selected by applying a Fisher ratio cut-off approach and most of them were selectively removed by one of the cigarette filter types. PMID- 29030032 TI - A modified approach for isolation of essential oil from fruit of Amorpha fruticosa Linn using microwave-assisted hydrodistillation concatenated liquid liquid extraction. AB - In this work, a modified technique was developed to separate essential oil from the fruit of Amorpha fruticosa using microwave-assisted hydrodistillation concatenated liquid-liquid extraction (MHD-LLE). The new apparatus consists of two series-wound separation columns for separating essential oil, one is the conventional oil-water separation column, and the other is the extraction column of components from hydrosol using an organic solvent. Therefore, the apparatus can simultaneously collect the essential oil separated on the top of hydrosol and the components extracted from hydrosol using an organic solvent. Based on the yield of essential oil in the first and second separation columns, the effects of parameters were investigated by single factor experiments and Box-Behnken design. Under the optimum conditions (2mL ethyl ether as the extraction solvent in the second separation column, 12mL/g liquid-solid ratio, 4.0min homogenate time, 35min microwave irradiation time and 540W microwave irradiation power), satisfactory yields for the essential oil in the first separation column (10.31+/ 0.33g/kg) and second separation column (0.82+/-0.03g/kg) were obtained. Compared with traditional methods, the developed method gave a higher yield of essential oil in a shorter time. In addition, GC-MS analysis of the essential oil indicated significant differences of the relative contents of individual volatile components in the essential oils obtained in the two separation columns. Therefore, the MHD-LLE technique developed here is a good alternative for the isolation of essential oil from A. fruticosa fruit as well as other herbs. PMID- 29030033 TI - A low-cost biosorbent-based coating for the highly sensitive determination of organochlorine pesticides by solid-phase microextraction and gas chromatography electron capture detection. AB - In this study, an environmentally friendly and low-cost biosorbent coating was evaluated, for the first time, as the extraction phase for solid-phase microextraction (SPME) supported on a nitinol alloy. The characterization of the new fiber was performed by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The applicability of the biosorbent-based fiber in the determination of delta hexachlorocyclohexane, aldrin, heptachlor epoxide, alpha-endosulfan, endrin and 4,4'-DDD in water samples was verified, with separation/detection by gas chromatography coupled to electron capture detection (GC-ECD). The influencing parameters (temperature, extraction time and ionic strength) were optimized simultaneously using a central composite design. The optimum conditions were: extraction time of 80min at 80 degrees C and sodium chloride concentration of 15% (w/v). Satisfactory analytical performance was achieved with limits of detection (LOD) between 0.19 and 0.71ngL-1 and limits of quantification (LOQ) between 0.65 and 2.38ngL-1. The relative recoveries for the analytes were determined using river and lake water samples spiked at different concentrations and ranged from 60% for alpha-endosulfan to 113% for delta-hexachlorocyclohexane, with relative standard deviations (RSD) lower than 21%. The fiber-to-fiber reproducibility (n=3) was also evaluated and the RSD was lower than 14%. The extraction efficiency obtained for the proposed biosorbent coating was compared to a commercially available DVB/Car/PDMS coating. The proposed fiber provided very promising results, including LODs at the level of parts per trillion and highly satisfactory thermal and mechanical stability. PMID- 29030034 TI - A polyacrylamide-based silica stationary phase for the separation of carbohydrates using alcohols as the weak eluent in hydrophilic interaction liquid chromatography. AB - A hydrophilic interaction liquid chromatography (HILIC) stationary phase was prepared by a two-step synthesis method, immobilizing polyacrylamide on silica sphere particles. The stationary phase (named PA, 5MUm dia) was evaluated using a mixture of carbohydrates in HILIC mode and the column efficiency reached 121,000Nm-1. The retention behavior of carbohydrates on PA stationary phase was investigated with three different organic solvents (acetonitrile, ethanol and methanol) employed as the weak eluent. The strongest hydrophilicity of PA stationary phase was observed in both acetonitrile and methanol as the weak eluent, when compared with another two amide stationary phases. Attributing to its high hydrophilicity, three oligosaccharides (xylooligosaccharide, fructooligosaccharide and chitooligosaccharides) presented good retention on PA stationary phase using alcohols/water as mobile phase. Finally, PA stationary phase was successfully applied for the purification of galactooligosaccharides and saponins of Paris polyphylla. It is feasible to use safer and cheaper alcohols to replace acetonitrile as the weak eluent for green analysis and purification of polar compounds on PA stationary phase. PMID- 29030035 TI - Quali-quantitative characterization of the volatile constituents in Cordia verbenacea D.C. essential oil exploiting advanced chromatographic approaches and nuclear magnetic resonance analysis. AB - Cordia verbenacea D.C. (Boraginaceae, Varronia curassavica Jacq. synonym) is a medicinal plant, native from Brazil, especially the leaves are used in folk medicine. The aim of this study was to extend the characterization of the volatile fraction of the essential oil obtained from this plant, by using GC-FID, GC-MS, and chiral GC. Moreover, to further clarify the composition of the volatile fraction, preparative multidimensional-GC (prep-MDGC) was used to collect unknown compounds, followed by NMR characterization. Specifically, the chemical characterization, both qualitative and quantitative, of the volatile fraction of the essential oil obtained from Cordia verbenacea cultivated in the Minas Gerais area (central area of Brazil) was investigated for the first time. The principal components from a quantitative point of view were alpha-pinene (25.32%; 24.48g/100g) and alpha-santalene (17.90%; 17.30g/100g), belonging to the terpenes family. Chiral-GC data are reported for the enantiomeric distribution of 7 different components. Last, to obtain the complete characterization of the essential oil constituents, prep-MDGC analysis was used to attain the isolation of two compounds, not present in the principal MS databases, which were unambiguously identified by NMR investigation as (E)-alpha-santalal and (E)-alpha bergamotenal, reported for the first time in Cordia verbenacea essential oil. PMID- 29030036 TI - A single-step synthesized supehydrophobic melamine formaldehyde foam for trace determination of volatile organic pollutants. AB - Superhydrophobic materials have attracted many attentions in recent years while their application in sample preparation remained almost intact. In this project, a rough surface of melamine formaldehyde foam was silanized by chemical deposition of trichloromethylsilane to form a highly porous and superhydrophobic material, presumably a suitable medium for extracting non-polar compounds such as benzene and its methyl derivatives. The prepared sorbent was packed in a needle for the headspace needle-trap microextraction of benzene, toluene, ethylbenzene and xylenes (BTEX). Major parameters associated with the extraction/desorption processes were considered for optimization. Under the optimized condition, the linear dynamic range was from 20 to 1000ngL-1 (R2>0.98). For evaluating the method precision, inter-day, intra-day and needle-to-needle relative standard deviations (RSD%) were calculated (<13%) for water samples spiked at 500ngL-1 of BTEX. The LOD values were in the range of 5-10ngL-1 using gas chromatography flame ionization detector (GC-FID). Finally, hookah water was considered as suspicious real sample, assumed to contain volatile organic pollutants. Among these pollutants, toluene was identified, at the concentration level of 439ngL-1, in one of the hookah samples while benzene was detectable at much lower level. Also, some other organic pollutants were identified in the smoke and hookah water using GC-mass spectrometry (GC-MS). In addition, the suspicious BTEX-containing samples from petrochemical waste water of Asalooye (Persian Gulf) were analyzed. PMID- 29030037 TI - Solid phase extraction based on porous magnetic graphene oxide/beta-cyclodextrine composite coupled with high performance liquid chromatography for determination of antiepileptic drugs in plasma samples. AB - In this study, a novel solid phase extraction based on porous magnetic graphene oxide-cyclodextrin polymers (MGO-CD) was developed with aromatic linker and used for the simultaneous extraction and preconcentration of trace antiepileptic drugs in plasma. The characteristics of MGO-CD were assessed by Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller surface areas (BET), Transmission Electron Microscope (TEM), Scanning Electron Microscope (SEM), X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). Magnetic cyclodextrin polymeric material exhibited a high specific surface area (187m2g-1), large pore volume (0.12cm3g-1), good saturated magnetization (37.68emug-1), and excellent dispersibility in aqueous solution. Various parameters influencing the extraction recovery of drugs were studied. The method exhibited good linearity in the range of 1-50MUgmL-1, and the limit of quantitation of carbamazepine, phenytoin, diazepam was 11.89, 47.10 and 16.17ngmL-1, respectively. The recoveries of three antiepileptic drugs range from 78.49 to 100.93% with relative standard deviations less than 5.5%. These analytical results demonstrated that the proposed approach based on MGO-CD was applicable for analysis of antiepileptic drugs in plasma samples. PMID- 29030038 TI - A system map for the ionic liquid stationary phase 1,12 di(tripropylphosphonium)dodecane bis(trifluoromethylsulfonyl)imide for gas chromatography. AB - The solvation parameter model is used to prepare a system map for the retention of volatile organic compounds on the ionic liquid stationary phase 1,12 di(tripropylphosphonium)dodecane bis(trifluoromethylsulfonyl)imide (SLB-IL60) by gas chromatography over the temperature range 80-280 degrees C. Retention is governed by dispersion, dipole-type and hydrogen-bonding interactions with a different temperature dependence. The hydrogen-bond acidity of the SLB-IL60 column is unexpected since the stationary phase contains no hydrogen-bond acid groups and is not obviously connected to contributions from the deactivated column wall. The polarity number is shown to be a poor indicator of column retention properties. Principal component analysis with the system constants of the solvation parameter model as variables indicates that the properties of SLB IL60 are not duplicated by any of the common poly(siloxane) and poly(ethylene glycol) stationary phase chemistries in common use for column preparation. The SLB-IL60 column has similar selectivity to a poly(cyanopropylphenyldimethylsiloxane) stationary phase containing 50% cyanopropylphenyl siloxane monomer but the two columns are not selectivity equivalent. Poly(ethylene glycol) stationary phases indicated as most similar to SLB-IL60 based on their polarity numbers are shown to have quite different selectivity. PMID- 29030039 TI - Effect of acidic and enzymatic pretreatment on the analysis of mountain tea (Sideritis spp.) volatiles via distillation and ultrasound-assisted extraction. AB - A number of beneficial medicinal properties are attributed to the extract and essential oil of the aerial parts of Sideritis species (Lamiaceae). Hydrodistillation of the aerial parts of wild Sideritis clandestina ssp. peloponnesiaca (an endemic taxon in northern Peloponnesus, Greece) gave a low essential oil yield (<0.12%); about 65 components, mainly alpha-pinene, beta caryophyllene, beta-pinene, globulol, caryophyllene oxide, were identified via GC MS. Internal and external standards were used for quantification. For miniaturization of the procedure, we studied side-by-side maceration (MAC) and ultrasound-assisted extraction (UAE) methods, as well as the effect of preincubation in acidic medium (pH 4.8) for 75min at 37 degrees C with or without a mixture of cellulase, hemicellulase and pectinase. Maceration and UAE provide consistent chemoprofiling of the main volatile compounds (about 20); UAE has lower demands on time, solvent, plant material (3g) and results in higher yields. Pretreatment with enzymes can increase the respective yields of hydrodistillation and UAE, but this effect is definitely attributed to the concurrent acidic pretreatment. In conclusion, incubation of plant material prior to hydrodistillation or UAE in citrate buffer, pH 4.8, significantly enhances the overall yield and number of components obtained and is recommended for the analysis of Sideritis volatiles. The acidic pre-treatment method was also successfully applied to analysis of cultivated Sideritis raeseri Boiss. & Heldr. in Boiss. ssp. raeseri; alpha-pinene, alpha- and gamma-terpinene and beta-thujene were predominant albeit in different percentages in flowers and leaves. PMID- 29030040 TI - Sedimentation assisted preparation of ground particles of silica monolith and their C18 modification resulting in a chromatographic phase of improved separation efficiency. AB - The sedimentation procedure has been adopted in production of ground silica monolith particles to improve chromatographic separation efficiency of the resultant phase. First, silica monolith particles have been successfully prepared in a large scale by a sol-gel process followed by grinding. The particles after calcination were separated by sedimentation into three zones using an Imhoff sedimentation cone. The particles of the bottom zone were derivatized with a C18 ligand and end-capped. The sedimentation process was found to not only eliminate troublesome minute particles but also narrow down the particle size distribution. The resultant phase was packed in glass lined stainless steel micro-columns. The average number of theoretical plates (N) of the columns for a test mixture was 47,000 and 29,300 for the 300 and 150mm columns (1mm internal diameter), corresponding to 157,000/m and 195,000/m, respectively. PMID- 29030041 TI - The application of chiral ultra-high-performance liquid chromatography tandem mass spectrometry to the separation of the zoxamide enantiomers and the study of enantioselective degradation process in agricultural plants. AB - In this study, an effective and sensitive chiral analytical method was developed to detect zoxamide enantiomers in vegetables, fruits and environmental matrices using ultra-high-performance liquid chromatography-tandem mass spectrometry. Optimal separation conditions were achieved with Lux Amylose-2 chiral column using acetonitrile/water (70:30v/v) as mobile phase with a flow rate and column temperature of 0.5mL/min and 25 degrees C. The absolute configuration, optical rotation and elution order were confirmed for the first time. The average recoveries in all matrices at four spiking levels (0.5, 5, 50, 250MUg/kg) ranged from 89.7 to 117.4%, with relative standard deviations being less than 10.9% for two enantiomers. The enantioselective dissipation of zoxamide in tomato showed that (-)-R-zoxamide was preferentially degraded leading to an enrichment of (+)-S isomer, with half-lives of 3.80 d and 5.17 d, respectively. Inversely, (+)-S zoxamide degraded faster than (-)-R-zoxamide in pepper (1.95day and 2.28day, respectively) and grape (2.03day and 2.87day). No significant enantioselectivity was observed in cucumber. The results of this study could help facilitate more accurate risk assessments of zoxamide in the future. PMID- 29030042 TI - Genetic variability and transcontinental sharing of Giardia duodenalis infrapopulations determined by glutamate dehydrogenase gene. AB - Microevolutionary data of Giardia duodenalis sub-assemblages is a prerequisite for determining the invasion zoonotic patterns of the parasite. To infer transmission patterns that could not be differentiated by the phenotypic features, a population genetic investigation is crucial for the elucidation of the genetic structure of G. duodenalis among the continents. Forty G. duodenalis positive fecal samples were collected from different foci of Northwest Iran. The specimens were subjected to Trichrome staining and sucrose gradient flotation. DNA samples were extracted, amplified, and sequenced by targeting glutamate dehydrogenase (gdh) gene. The global gdh sequences of sub-assemblages AII and BIV retrieved from NCBI GenBank were analyzed to estimate diversity indices, neutrality indices, and gene migration tests. Sequencing analyses indicated various levels of genetic variability of sub-assemblages AII and BIV among the five continents. Sub-assemblage BIV had greater genetic variability (haplotype diversity: 0.975; nucleotide diversity: 0.04246) than sub-assemblage AII. The statistical Fst value demonstrated that the genetic structure of sub-assemblages AII and BIV are moderately differentiated between European-American populations (Fst: 0.05352-0.15182), whereas a significant differentiation was not seen among other geographical population pairs. We conclude that a high gene flow of G. duodenalis sub-assemblages AII and BIV is unequivocally sharing among the continents. The current findings strengthen our knowledge to assess the evolutionary patterns of G. duodenalis in endemic foci of the world and it will become the basis of public health policy to control human giardiasis. PMID- 29030043 TI - Quality of anthelminthic medicines available in Jimma Ethiopia. AB - Soil-transmitted helminthiasis and schistosomiasis are major public health problems in Ethiopia. Mass deworming of at-risk population using a single dose administration of 400mg albendazole (ABZ) or 500mg mebendazole (MBZ) for treatment of common intestinal worms and 40mg of praziquantel (PZQ) per kg body weight for treatment of schistosomiasis is one of the strategies recommended by World Health Organization (WHO) in order to control the morbidity of soil transmitted helminthiasis and schistosomiasis. Since storage condition, climate, way of transportation and distribution route could all affect the quality of medicines, regular assessment by surveys is very critical to ensure the therapeutic outcome, to minimize risk of toxicity to the patient and resistance of parasites. Therefore, this study was conducted to assess the pharmaceutical quality of ABZ, MBZ and PZQ tablet brands commonly available in Jimma town (south west Ethiopia). Retail pharmacies (n=10) operating in Jimma town were selected using simple random sampling method. Samples of anthelminthic medicines available in the selected pharmacies were collected. Sample information was recorded and encompassed trade name, active ingredient name, manufacturer's name and full address, labeled medicine strength, dosage form, number of units per container, dosage statement, batch/lot number, manufacturing and expiry dates, storage information and presence of leaflets/package insert. Moreover, a first visual inspection was performed encompassing uniformity of color, uniformity of size, breaks, cracks, splits, embedded surface spots or visual contaminations. Finally, physico-chemical quality attributes investigated encompassed mass uniformity, quantity of active pharmaceutical ingredient (API), disintegration and dissolution, all following Pharmacopoeial test methods The physical characteristics of dosage form, packaging and labeling information of all samples complied with criteria given in the WHO checklists. The mass uniformity of tablets of each brand of ABZ, MBZ and PZQ complied with the pharmacopoeial specification limits, i.e no more than 2 individual masses >5% of average tablet weight, and none deviate by more than 10%. The quantity of APIs in all investigated tablet brands were within the 90-110% label claim (l.c.) limits, ranging between 95.05 and 110.09% l.c. Disintegration times were in line with the pharmacopoeial specification limit for immediate release (IR) tablets, ranging between 0.5 and 13min. However, the dissolution results (mean+/-SD, n=6) of one ABZ brand (i.e. Wormin(r), Q=59.21+/-0.99% at 30min) and two PZQ brands (i.e. Bermoxel(r), Q=63.43%+/-0.7 and Distocide(r), Q=62.43%+/-1.67, at 75min) showed poor dissolution, failing the United States Pharmacopoeia (USP) dissolution specification limit. PMID- 29030044 TI - Peripheral Blood Leukocyte Expression of lncRNA MIAT and Its Diagnostic and Prognostic Value in Ischemic Stroke. AB - BACKGROUND: Ischemic stroke (IS) is an extremely heterogeneous disease with variable pathogenesis. Due to the lack of early diagnostic markers, the mortality rate of IS remains high. Cumulative evidence shows that long noncoding RNAs among noncoding RNAs play important roles in cardiovascular diseases. In the present study, we focused on the expression pattern of myocardial infarction-associated transcript (MIAT) and its clinical significance in IS. METHODS: Blood samples were obtained from IS patients (n = 189) and healthy controls (n = 189). The National Institutes of Health Stroke Scale (NIHSS) was measured at the time of admission. Short-term functional outcome was measured by the modified Rankin Scale (mRS) at 3 months after admission. Multivariate analyses were performed using logistic regression models. The receiver operating characteristic (ROC) curve was used to evaluate the accuracy of MIAT in the diagnosis and prognosis of IS. RESULTS: In IS patients, MIAT expression level was significantly upregulated and correlated with NIHSS scores (r = .421, P <.001), mRS (r = .339, P <.001), high-sensitivity C-reactive protein (r = .309, P <.001), and infarct volume (r = .318, P <.001). ROC curves indicated that MIAT could serve as a potential marker for discriminating IS patients from the controls with an area under the curve of .842 (95% confidence interval, .802-.881). The overall survival analysis showed that patients with higher MIAT expression had a relatively poor prognosis. Meanwhile, the multivariate analysis revealed that MIAT was an independent prognostic marker of functional outcome and death in patients with IS. CONCLUSION: Our data suggested that MIAT might be a potential diagnostic and prognostic indicator in IS. PMID- 29030045 TI - The Potential Role of Thermography in Determining the Efficacy of Stroke Rehabilitation. AB - INTRODUCTION: Maintaining good physiological circulation in the extremities requires an optimally functioning muscle pump. Stroke symptoms indicate a change in venous circulation. In this study, changes were measured in joint function and microcirculation, and the correlation between them was examined. SETTING: Physiotherapy Center, Ss. Cosmas and Damian Rehabilitation Institute, Visegrad, Hungary. METHODOLOGY: Sixteen randomly selected poststroke patients with hemiparesis affecting mainly the upper extremities began undergoing rehabilitation 13 +/- 4 days following stroke. Thermograms were taken with a Fluke Ti 20 (Fluke Corporation, WA) pretreatment and post-treatment, and a physiotherapy documentation form was completed. Treatment comprised 15 physiotherapy, massage, and galvanic therapy sessions per patient, with the side exhibiting no neurological symptoms as a control. RESULTS: Joint function showed significant improvement on the affected side (P < .05). Thermographic examinations revealed microcirculatory dysfunction in the affected extremities in 100% of the cases. Following treatment, temperature increased significantly (P >= .5 degrees C) on the affected side. A strong correlation (r) was observed between joint function and temperature change (P < .05). CONCLUSION: Thermography is shown to be a reliable method for monitoring the effects of stroke rehabilitation treatment. Thermographic testing may enable us to predict the course of the trauma and the efficacy of treatment even at the acute stage. PMID- 29030046 TI - Ideal Cardiovascular Health and Incidence of Carotid Plaque among Middle-Aged and Elderly Adults. AB - BACKGROUND: The ideal cardiovascular health (CVH) has been reported to be associated with reduced risk of ischemic stroke (IS). Atherosclerosis is a fundamental precursor in progression to IS. This study aimed to investigate the association of CVH score and atherosclerosis defined by carotid plaque in a community-based cohort. METHODS: Data came from the Asymptomatic Polyvascular Abnormalities Community study. After exclusions for missing data and original carotid plaque, 1938 subjects were included. At baseline (2010), the 7 CVH factors were quantified on a 14-point scale with 2 points awarded for ideal status, 1 point for intermediate, and 0 point for poor. The incidence of carotid plaque from 2010 to 2012 was evaluated from bilateral common, internal, and external carotid arteries, and carotid bifurcations using high-resolution B-mode ultrasounds. Multivariable logistic models were used to assess the association between CVH score and carotid plaque incidence. RESULTS: After 2 years' follow up, 350 (18.06%) subjects developed carotid plaque. After adjusting for age, sex, education, and income, we observed a significant inverse association between the CVH score and incident carotid plaque. For every CVH score increase, the risk of carotid plaque incidence decreased by 8.10%. Stratified analysis showed the above association had no difference between sexes and age. CONCLUSIONS: Chinese subjects with a higher CVH score had a lower risk of developing carotid plaque after 2 years. The ideal CVH concept should be further promoted for protecting the arteries from atherosclerosis. PMID- 29030047 TI - Evaluation of the Time-Dependent Changes and the Vulnerability of Carotid Plaques Using Contrast-Enhanced Carotid Ultrasonography. AB - BACKGROUND: The association of carotid plaque enhancement on contrast-enhanced carotid ultrasound (CEUS) and plaque vulnerability evaluated by magnetic resonance imaging (MRI) was to be determined. MATERIALS AND METHODS: The 103 patients underwent CEUS from May 2013 until June 2016. CEUS images of the carotid plaque were obtained offline. Plaque images obtained at 1, 3, 5, and 10 minutes were compared with the reference image, defined as the image obtained at 0 minute. Plaque brightness was assessed using the gray-scale median during contrast enhancement (GSM-C). Plaque vulnerability was evaluated using T1- and T2 weighted MRI and Volume ISotropic TSE Acquisition (VISTA), with a VISTA cutoff value for the plaque muscle ratio (PMR) of 1.5. Time-dependent changes in the GSM C were evaluated, and those between 0 and 1 minute were compared with the PMR values determined on MRI. FINDINGS: GSM-C decreased significantly over time, from 32.0 at 0 minute to 28.0 at 1 minute, 25.0 at 3 minutes, and 19.0 at 10 minutes. The greater the increase in the changes in the GSM-C from 0 to 1 minute, the more significant the association with a PMR higher than the median on T1 (GSM-C: 0 minute: 29.0, 1 minute: 24.0, P = .015), a PMR less than or equal to the median on T2 (0 min: 35.0, 1 min: 28.0, P = .003), and a PMR more than 1.5 determined on VISTA (GSM-C: 0 minute: 29.0, 1 minute: 24.0, P = .005). CONCLUSIONS: Early changes in the GSM-C evaluated with CEUS indicate significant plaque vulnerability on MRI. PMID- 29030049 TI - More evidence is needed to show any role of cytomegalovisrus and varicella zoster virus in pathogenesis of multiple sclerosis. PMID- 29030048 TI - Increased Prevalence of Cerebrovascular Disease in Hospitalized Patients with Marfan Syndrome. AB - BACKGROUND AND PURPOSE: Small studies have suggested that Marfan syndrome is associated with a number of cerebrovascular complications. We sought to determine whether a clinical diagnosis of Marfan syndrome is associated with a higher prevalence of cerebrovascular diseases than the general population by performing a case-control study of hospitalized patients in the Nationwide Inpatient Sample (NIS). METHODS: Using the 2000-2012 NIS, we performed a case-control study matching cases of Marfan syndrome to controls without such a diagnosis. The prevalence of various cerebrovascular diseases between the 2 groups were compared, and multivariate logistic regression was used to adjust for suspected comorbidities. RESULTS: Between 2000 and 2012, there were a total of 13,883 discharges carrying a diagnosis of Marfan syndrome. On univariate analysis, patients with Marfan syndrome were more likely to have a primary or secondary diagnosis of hemorrhagic stroke (0.5% versus 0.3%, odds ratio [OR] = 1.56, 95% confidence interval [CI] = 1.06-2.29, P = 0.02) as well as intracranial hemorrhage (subarachnoid hemorrhage [SAH] and hemorrhagic stroke) (0.3% versus 0.2%, OR = 1.72, 95% CI = 1.05-2.82, P = 0.03). Patients hospitalized with Marfan syndrome were significantly more likely to have carotid dissection (0.3% versus 0.0%, OR = 11.69, 95% CI = 3.60-38.08, P <. 0001) and cerebral aneurysms (0.2% versus 0.1%, OR = 3.67, 95% CI = 1.76-7.68, P = 0.0002). On multivariate analysis adjusted for age, race, and comorbidities, patients with Marfan syndrome had significantly higher odds of ischemic stroke (OR = 1.20, 95% CI = 1.02-1.43, P = 0.03), hemorrhagic stroke (OR = 1.75, 95% CI = 1.18-2.63, P = 0.005), carotid artery dissection (OR = 11.94, 95% CI = 4.23-50.03, P < 0.0001), and cerebral aneurysm (OR = 3.95, 95% CI = 1.95-8.90, P <0.0001). CONCLUSIONS: There is a modestly increased prevalence of ischemic stroke, hemorrhagic stroke, and cerebral aneurysms in hospitalized patients with Marfan syndrome when compared with controls. PMID- 29030050 TI - Neural Regeneration a Century after Ramon y Cajal's Decree. AB - This Guest Editorial introduces this month's special Neural Regeneration and Development Theme Issue, a series of reviews intended to highlight the advances in modern neuroscience and to depict the chasms in our understanding of the brain. PMID- 29030051 TI - Determinants of Axon Growth, Plasticity, and Regeneration in the Context of Spinal Cord Injury. AB - The mechanisms that underlie recovery after injury of the central nervous system have rarely been definitively established. Axon regrowth remains the major prerequisite for plasticity, regeneration, circuit formation, and eventually functional recovery. The attributed functional relevance of axon regrowth, however, will depend on several subsequent conditional neurobiological modifications, including myelination and synapse formation, but also pruning of aberrant connectivity. Despite the ability to revamp axon outgrowth by altering an increasing number of extracellular and intracellular targets, disentangling which axons are responsible for the recovery of function from those that are functionally silent, or even contributing to aberrant functions, represents a pertinent void in our understanding, challenging the intuitive translational link between anatomical and functional regeneration. Anatomic hallmarks of regeneration are not static and are largely activity dependent. Herein, we survey mechanisms leading to the formation of dystrophic growth cone at the injured axonal tip, the subsequent axonal dieback, and the molecular determinants of axon growth, plasticity, and regeneration in the context of spinal cord injury. PMID- 29030054 TI - Inhibiting the CD38/cADPR pathway protected rats against sepsis associated brain injury. AB - BACKGROUND: The CD38/cADPR pathway has been found to play roles in various inflammatory conditions. However, whether CD38 plays a protective or detrimental effect in the central nervous system (CNS) is controversial. The aim of this study was to determine the effect of CD38/cADPR pathway in sepsis associated brain injury. MATERIALS AND METHODS: Male Sprague-Dawley rats were undergone cecal ligation and puncture (CLP) or sham laparotomies. NAD+, cADPR and CD38 were measured in the hippocampus of septic rats at 0, 6, 12, 24, and 48h after CLP surgery. Rats were divided into the sham, CLP group, CLP+ CD38 expression lentivirus (CLP+ CD38 LV), CLP+ CD38 interference lentivirus (CLP+ CD38 Ri), CLP+ negative control lentivirus (CLP+NC) and the CLP+8-Br-cADPR groups. The Western blots of Bcl-2, Bax and iNOS, TUNEL assays, malondialdehyde (MDA) and superoxide dismutase (SOD) assays, transmission electron microscope analysis were performed in the hippocampus of rats. RESULTS: NAD+, cADPR and CD38 levels increased significantly in the hippocampus of septic rats as early as 12-24h after CLP surgery. CD38 knockdown or blocking cADPR with 8-Br-cADPR significantly reduced apoptosis, MDA and SOD activity, iNOS expression and ultrastructural morphology damages in the hippocampus of septic rats. CONCLUSIONS: In this study, we found that the CD38/cADPR pathway was activated in sepsis associated brain injury. Blocking this pathway protected the hippocampus from apoptosis, oxidative stress and ultrastructural morphology damages in septic rats. PMID- 29030052 TI - Primary Cilia in Brain Development and Diseases. AB - The primary cilium, a sensory appendage that is present in most mammalian cells, plays critical roles in signaling pathways and cell cycle progression. Mutations that affect the structure or function of primary cilia result in ciliopathies, a group of developmental and degenerative diseases that affect almost all organs and tissues. Our understanding of the constituents, development, and function of primary cilia has advanced considerably in recent years, revealing pathogenic mechanisms that potentially underlie ciliopathies. In the brain, the primary cilia are crucial for early patterning, neurogenesis, neuronal maturation and survival, and tumorigenesis, mostly through regulating cell cycle progression, Hedgehog signaling, and WNT signaling. We review these advances in our knowledge of primary cilia, focusing on brain development, and discuss the mechanisms that may underlie brain abnormalities in ciliopathies. PMID- 29030055 TI - The heart of PD: Lewy body diseases as neurocardiologic disorders. AB - This review provides an update about cardiac sympathetic denervation in Lewy body diseases. The family of Lewy body diseases includes Parkinson's disease (PD), pure autonomic failure (PAF), and dementia with Lewy bodies (DLB). All three feature intra-neuronal cytoplasmic deposits of the protein, alpha-synuclein. Multiple system atrophy (MSA), the parkinsonian form of which can be difficult to distinguish from PD with orthostatic hypotension, involves glial cytoplasmic inclusions that contain alpha-synuclein. By now there is compelling neuroimaging, neuropathologic, and neurochemical evidence for cardiac sympathetic denervation in Lewy body diseases. In addition to denervation, there is decreased storage of catecholamines in the residual terminals. The degeneration develops in a centripetal, retrograde, "dying back" sequence. Across synucleinopathies the putamen and cardiac catecholaminergic lesions seem to occur independently of each other, whereas non-motor aspects of PD (e.g., anosmia, dementia, REM behavior disorder, OH) are associated with each other and with cardiac sympathetic denervation. Cardiac sympathetic denervation can be caused by synucleinopathy in inherited PD. According to the catecholaldehyde hypothesis, 3,4 dihydroxyphenylacetaldehyde (DOPAL), an intermediary metabolite of dopamine, causes or contributes to the death of catecholamine neurons, especially by interacting with proteins such as alpha-synuclein. DOPAL oxidizes spontaneously to DOPAL-quinone, which probably converts alpha-synuclein to its toxic oligomeric form. Decreasing DOPAL production and oxidation might slow the neurodegenerative process. Tracking cardiac sympathetic innervation over time could be the basis for a proof of principle experimental therapeutics trial targeting DOPAL. PMID- 29030053 TI - Function and Dysfunction of Adult Hippocampal Neurogenesis in Regeneration and Disease. AB - The hippocampus is the only known brain region where physiological neurogenesis continues into adulthood across mammalian species and in humans. However, disease and injury can change the level of adult hippocampal neurogenesis, which plays an important role in regulating cognitive and emotional abilities. Alterations in hippocampal neurogenesis can mediate treatment of mental illness or affect the brain's capacity for repair and regeneration. In the present review, we evaluate how adult neurogenesis contributes to the repair and regeneration of hippocampal circuitry in the face of diseases and injuries. We also discuss possible future directions for harnessing adult neurogenesis for therapeutic use. PMID- 29030056 TI - Development of a generic wound care assessment minimum data set. AB - BACKGROUND: At present there is no established national minimum data set (MDS) for generic wound assessment in England, which has led to a lack of standardisation and variable assessment criteria being used across the country. This hampers the quality and monitoring of wound healing progress and treatment. AIM: To establish a generic wound assessment MDS to underpin clinical practice. METHOD: The project comprised 1) a literature review to provide an overview of wound assessment best practice and identify potential assessment criteria for inclusion in the MDS and 2) a structured consensus study using an adapted Research and Development/University of California at Los Angeles Appropriateness method. This incorporated experts in the wound care field considering the evidence of a literature review and their experience to agree the assessment criteria to be included in the MDS. RESULTS: The literature review identified 24 papers that contained criteria which might be considered as part of generic wound assessment. From these papers 68 potential assessment items were identified and the expert group agreed that 37 (relating to general health information, baseline wound information, wound assessment parameters, wound symptoms and specialists) should be included in the MDS. DISCUSSION: Using a structured approach we have developed a generic wound assessment MDS to underpin wound assessment documentation and practice. It is anticipated that the MDS will facilitate a more consistent approach to generic wound assessment practice and support providers and commissioners of care to develop and re-focus services that promote improvements in wound care. PMID- 29030057 TI - Comparative pattern of growth and development of Echinostoma paraensei (Digenea: Echinostomatidae) in hamster and Wistar rat using light and confocal laser scanning microscopy. AB - Echinostoma paraensei (Digenea: Echinostomatidae) lives in the duodenum and bile duct of rodents and is reported as a useful model for studies on the biology of flatworms. Here, we compared the growth and development of pre and post ovigerous worms collected 3, 7, 14 and 21 days post infection from experimentally infected hamster (permissive host) and Wistar rat (less permissive hosts). Linear measurements and ratios were examined by light (morphology and morphometry) and confocal laser scanning microscopy. At day 3, either worm from hamsters or rats were small with poorly developed gonads. At seven day, worms increased in size and morphometric differences between hosts are statistically significant after this time. In addition, adult worms (14 and 21 days of age) harvested from hamster showed developed gonads and vitelline glands laterally distributed on the body, whereas worms from rat showed atrophied reproductive system characterized by underdeveloped vitelline glands and stunted ovary. The worm rate recovery in rat decreased from 29.3% (day 7) to 20.6% (day 14) and 8% (day 21), whilst it remained around 37% in hamster. In conclusion, this is the first appointment demonstrating that low permissiveness influences the reproductive system of echinostome since the immature stages of development. The phenotypic analysis evidenced that hamster provides a more favorable microenvironment for gonads development than rat, confirming golden hamster as a permissive host, whereas Wistar rat is less permissive host. PMID- 29030059 TI - Blood Transfusion in Elderly Patients with Acute Myocardial Infarction: Data from the RICO Survey. AB - BACKGROUND: Red blood cell transfusion benefit during acute myocardial infarction remains unclear in the elderly. We aimed to assess the transfusion impact on 1 year mortality in acute myocardial infarction patients aged >=65 years, according to their age and hemoglobin nadir. METHODS: We included 3316 consecutive patients with acute myocardial infarction aged >=65 years from the "obseRvatoire des Infarctus de Cote d'Or" (RICO) survey. They were categorized according to their hemoglobin nadir (<=8, >8 to <=10, and >10 g/dL) and age (<80 or >=80 years). RESULTS: A total of 1906 patients (57%) were 65-79 years old, and 1410 (43%) were aged >=80 years, of whom 103 (5%) and 145 (10%) patients received red blood cell transfusion, respectively (P < .001). In Cox regression analysis, transfusion was associated with increased 1-year mortality for hemoglobin nadir >10 g/dL but no significant effect for hemoglobin nadir between 8 and 10 g/dL. When hemoglobin nadir was <=8 g/dL, transfusion did not influence 1-year mortality for younger patients (65-79 years). However, for older patients (>=80 years), transfusion was associated with lower mortality (hazard ratio 0.43 [95% confidence interval, 0.22 0.86], P = .016). CONCLUSION: Among older patients with acute myocardial infarction, the effect of transfusion was largely dependent on hemoglobin threshold and age. Transfusion was associated with increased 1-year mortality when hemoglobin nadir was >10 g/dL. However, in patients aged >=80 years with hemoglobin nadir <8 g/dL, transfusion was associated with a 50% reduction in 1 year mortality. PMID- 29030060 TI - Bedside Diagnosis of Deep Vein Thrombosis Using a Pocket-Sized Ultrasound Device. PMID- 29030061 TI - Disseminated Histoplasmosis: An Unusual Presentation of a Classic Midwest Infection. PMID- 29030062 TI - Rare Complication of Cough. PMID- 29030058 TI - MDM2 Antagonists Counteract Drug-Induced DNA Damage. AB - Antagonists of MDM2-p53 interaction are emerging anti-cancer drugs utilized in clinical trials for malignancies that rarely mutate p53, including melanoma. We discovered that MDM2-p53 antagonists protect DNA from drug-induced damage in melanoma cells and patient-derived xenografts. Among the tested DNA damaging drugs were various inhibitors of Aurora and Polo-like mitotic kinases, as well as traditional chemotherapy. Mitotic kinase inhibition causes mitotic slippage, DNA re-replication, and polyploidy. Here we show that re-replication of the polyploid genome generates replicative stress which leads to DNA damage. MDM2-p53 antagonists relieve replicative stress via the p53-dependent activation of p21 which inhibits DNA replication. Loss of p21 promoted drug-induced DNA damage in melanoma cells and enhanced anti-tumor activity of therapy combining MDM2 antagonist with mitotic kinase inhibitor in mice. In summary, MDM2 antagonists may reduce DNA damaging effects of anti-cancer drugs if they are administered together, while targeting p21 can improve the efficacy of such combinations. PMID- 29030063 TI - Immediate and midterm results of balloon angioplasty for recurrent aortic coarctation in children aged<1 year. AB - BACKGROUND: Several publications have considered results of percutaneous angioplasty for aortic recoarctation, but none focused on procedures performed in children aged<1 year. AIMS: To describe the immediate and midterm results of balloon angioplasty for recoarctation before the age of 1 year, and to define the factors that might influence outcome. METHODS: We retrospectively reviewed data from 20 consecutive children undergoing percutaneous dilatation for aortic recoarctation before the age of 1 year in the University Hospitals of Tours and Nantes. RESULTS: In all patients except one, dilatation improved the median recoarctation diameter Z-score from -5.5 (range -10.6 to -2.5) to -2.8 (range 4.3 to 0.7) (P<0.001), and reduced the median peak systolic gradient from 33mmHg (range 20 to 60mmHg) to 21mmHg (range 6 to 50mmHg) (P<0.001). There was no procedure-induced mortality and no acute intimal flap or long-term aneurysm. Three patients experienced a transient femoral artery thrombosis, one of whom had a transient ischemic stroke. Eight children (40%) needed reintervention for further recoarctation (new surgery [n=4] or new dilatation [n=4]). A smaller balloon size was significantly associated with the risk of reintervention: balloon to recoarctation diameter ratio 2.0 (range 1.3 to 3.3) vs. 2.7 (range 2.1 to 4.5) (P=0.05); balloon to descending aorta ratio 0.8 (range 0.7 to 1.2) vs. 1.0 (range 0.9 to 1.3) (P<0.05). CONCLUSIONS: In this study, percutaneous balloon angioplasty for recoarctation in young infants aged<1 year improved aortic isthmus diameter with a low incidence of adverse event. However, the rate of further intervention is high, and is associated with a smaller balloon size. PMID- 29030064 TI - Five-year major clinical outcomes according to severity of coronary artery spasm as assessed by intracoronary acetylcholine provocation test. AB - BACKGROUND: Long-term clinical outcome data according to severity of coronary artery spasm (CAS) as assessed by an intracoronary acetylcholine provocation test are limited in series of Asian patients. AIM: To investigate 5-year clinical outcomes in patients with CAS according to CAS severity. METHODS: In total, 5873 consecutive patients with insignificant coronary artery disease (<70% fixed stenosis) who underwent an acetylcholine provocation test were enrolled and divided into four groups according to CAS severity during the acetylcholine provocation test: negative, borderline positive, moderately positive and severely positive. CAS severity was assessed by quantitative coronary angiography. We investigated 5-year clinical outcomes according to CAS severity. RESULTS: Over a follow-up period of up to 5 years, before adjustment, the severely-positive CAS group showed a significantly higher incidence of major adverse cardiac events (MACE; composite of death, myocardial infarction and de novo revascularization) (hazard ratio [HR]: 1.834, 95% confidence interval [CI]: 1.047-3.211; P=0.033), total death (HR: 3.124, 95% CI: 1.047-9.322; P=0.041), myocardial infarction (HR: 3.190, 95% CI: 1.069-9.519; P=0.037) and recurrent angina (HR: 1.762, 95% CI: 1.363-2.278; P<0.001) compared with the negative group. However, after adjustment for baseline confounders, only the incidence of recurrent angina (HR: 1.323, 95% CI: 1.014-1.726; P=0.039) was significantly higher in the severely-positive CAS group compared with the negative group. CONCLUSIONS: The severity of CAS in the positive group was not associated with an increased incidence of MACE after adjustment for covariates compared with the negative group, but the severely positive CAS group was associated with a higher incidence of recurrent angina compared with the negative group. PMID- 29030065 TI - Diuretics versus volume expansion in acute submassive pulmonary embolism. AB - BACKGROUND: The benefit of volume expansion (VE) in submassive pulmonary embolism (PE) with right ventricular (RV) dysfunction is unclear. AIM: To compare the effects of diuretic treatment versus VE in patients hospitalized for PE with RV dysfunction. METHODS: We prospectively included 46 consecutive patients with submassive PE treated on admission with a 40mg bolus of furosemide (D group, n=24) or 500mL of saline infusion (VE group, n=22). The primary endpoint was the timing of normalization of B-type natriuretic peptide and troponin Ic concentrations. The secondary endpoints were variations in RV function variables, recorded at baseline, at the 4th hour after treatment initiation (H4) and every day until discharge, and a clinical composite endpoint of thrombolysis or death at 7 and 30 days. RESULTS: No differences were observed between patients at baseline. The primary endpoint occurred earlier in the D group than in the VE group (67.5+/-34.8 vs 111.6+/-63.3hours; P=0.006). Furosemide treatment on admission was well tolerated, and was not associated with serious adverse events. At H4, substantial improvements were observed in the D group versus the VE group in terms of heart rate reduction (-8.15+/-21.0 vs -0.71+/-6.30 beats/min; P<0.01) and peak tricuspid annular systolic velocity (Doppler tissue imaging) (11.4+/ 2.10 vs 9.90+/-2.80cm/s; P=0.02). There was no significant difference between groups in terms of severe outcomes at 7 and 30 days. CONCLUSIONS: In the acute management of submassive PE patients, a single furosemide bolus on admission seems to produce significant and earlier improvements in RV function markers compared with VE, without adverse events. PMID- 29030066 TI - Etoposide induced NMI promotes cell apoptosis by activating the ARF-p53 signaling pathway in lung carcinoma. AB - Lung carcinoma is one of the leading causes of cancer-related death. The N-Myc and STATs interactor (NMI) has been reported to take participate in lots of physiological processes, but the involvement and functional mechanisms of NMI in lung carcinoma are poorly understood. In this study, we found that etoposide induces proliferation suppression, cell apoptosis and increases caspase-3 activity in A549 cells. Furthermore, etoposide treatment up-regulates the expression of NMI and ARF, enhances the interaction of NMI and ARF and promotes the p53 transcriptional activities. By contrast, when silencing NMI, the proliferation suppression and cell apoptosis caused by etoposide were repressed and the p53 signaling pathway activation was also suppressed. These investigations demonstrated etoposide-induced NMI can suppress tumor proliferation and promote cell apoptosis by activating the ARF-p53 signaling pathway in lung carcinoma. Our results provide an alternative mechanism for etoposide in lung carcinoma and suggest NMI has a critical role in suppressing lung carcinoma progression. PMID- 29030067 TI - Adipose tissue-derived stem cells in combination with xanthan gum attenuate osteoarthritis progression in an experimental rat model. AB - The current study explored the efficacy of an intra-articular (IA) injection of allogeneic adipose tissue-derived stem cells (ADSCs) combined with xanthan gum (XG) in a rat osteoarthritis (OA) model. We confirmed that XG significantly inproved proliferation of ADSCs in a dose dependent manner in vitro. The rat OA model was induced by an anterior cruciate ligament transection (ACLT), and at 4 weeks after surgery, rats were divided into four groups: the XG-ADSCs group, the ADSCs group, the XG group and the phosphate-buffered saline (PBS) group. A single dose of 1 * 106 allogeneic ADSCs suspended in 1% XG, ADSCs suspended in PBS, 1% XG alone or PBS alone was injected into the OA joint of rats in the respective treatment groups. Rats were sacrificed at 8 weeks after surgery. Treatment outcomes were evaluated by weight-bearing control of the hind limbs, gross morphological analysis, histological analysis and specific staining of articular cartilage, and measurement of inflammatory factors in synovial fluid. For the rats in the XG-ADSC-s and ADSCs-treated groups, the weight-bearing percentage of the right hind limb was significantly increased compared to that in the PBS group and was sustained over 4 weeks. However, the positive effect in the XG-ADSCs group was significantly greater than that in the ADSCs group. For the rats in the XG group, the efficacy decreased during the third week after surgery. The articular cartilage was relatively normal in the XG-ADSCs group, and moderate degeneration was observed in the ADSCs and XG groups. ADSCs and XG-ADSC treatments significantly decreased the concentrations of IL-1beta, TNF-alpha, MMP 3 and MMP-13 in synovial fluid; however, the attenuating effect of the XG-ADSCs treatment was significantly enhanced compared with that of the ADSCs treatment alone. These results indicate that a single IA injection of allogeneic ADSCs combined with XG efficiently attenuated OA progression with a therapeutic effect that was significantly greater than that of either ADSCs or XG alone. IA injection of XG-ADSCs might be an effective treatment for OA in humans. PMID- 29030068 TI - Double ovarian stimulation during the follicular and luteal phase in women >=38 years: a retrospective case-control study. AB - Previous studies have shown that double ovarian stimulation could obtain more oocytes in women with poor ovarian response. This retrospective case-control study aimed to investigate the efficacy of double ovarian stimulation in older women. One hundred and sixteen women aged >=38 years who received double ovarian stimulation were assigned to the study, with 103 divided into four groups according to follicular-phase ovarian stimulation protocols, including gonadotrophin-releasing hormone agonist short protocol (n = 27), gonadotrophin releasing hormone antagonist protocol (n = 32), mild stimulation protocol (n = 21) and medrocyprogesterone acetate (MPA) pituitary down-regulation protocol (n = 23). Numbers of oocytes retrieved and available embryos after double ovarian stimulation were more than double those obtained after follicular-phase ovarian stimulation alone. In total 81.90% of patients had available embryos, and the cancellation rate decreased from 37.07% to 18.10%. Forty-eight cases underwent 50 cryopreserved embryo transfer cycles, with a 22.00% clinical pregnancy rate. The implantation rate (10.53% versus 10.67%) was similar between the embryos derived from first and second stimulations. The results suggest that double ovarian stimulation could increase the chances of achieving pregnancy by accumulating more oocytes/embryos in a short time, which might serve as a useful strategy for older women. PMID- 29030069 TI - Sex differences and menstrual cycle effects in cognitive and sensory resting state networks. AB - It has not yet been established if resting state (RS) connectivity reflects stable characteristics of the brain, or if it is modulated by the psychological and/or physiological state of the participant. Based on research demonstrating sex hormonal effects in task-related brain activity, the present study aimed to investigate corresponding differences in RS networks. RS functional Magnetic Resonance Imaging (RS fMRI) was conducted in women during three different menstrual cycle phases, while men underwent three repeated RS fMRI testing sessions. Independent component analysis was used to identify the default mode network (DMN) and an auditory RS network. For the DMN, RS connectivity was stable across testing sessions in men, but varied across the menstrual cycle in women. For the auditory network (AN), retest reliable sex difference was found. Although RS activity in the DMN has been interpreted as trait characteristic of functional brain organization, these findings suggest that RS activity in networks involving frontal areas might be less stable than in sensory-based networks and can dynamically fluctuate. This also implies that some of the previously reported effects of sex hormones on task-related activity might to some extent be mediated by cycle-related fluctuations in RS activity, especially when frontal areas are involved. PMID- 29030070 TI - A latex agglutination assay to quantify the amount of hemagglutinin protein in adjuvanted low-dose influenza monovalent vaccines. AB - To formulate inactivated influenza vaccines, the concentration of hemagglutinin (HA) must be accurately determined. The standard test currently used to measure HA in influenza vaccines is the Single Radial Immunodiffusion (SRID) assay. We developed a very rapid, simple and sensitive alternative quantitative HA assay, namely the Latex Agglutination Assay (LAA). The LAA uses the Spherotest(r) technology, which is based on the agglutination of HA-specific immunoglobulin coated latex beads. The amount of HA in a sample is calculated from the level of bead agglutination by a simple absorbance measurement at 405nm against a standard curve generated using a monovalent vaccine standard. In less than 2hours, tens of samples could be quantified using the LAA as opposed to 2days for the SRID assay. Ten steps are required to complete an SRID assay as compared to 6 steps for the LAA, from sample preparation through spectrophotometric analysis. Furthermore, the limit of detection of the LAA was found to be approximately 15ng HA/mL, similar to an ELISA, with the quantification of less than 1.8MUg HA/mL. The quantification limit of the SRID is usually considered to be approximately 5MUg HA/mL. The development of the assay and a comparison of the titers obtained by SRID and LAA for several monovalent vaccines corresponding to various strains were performed. For A/H5N1 and A/H1N1 monovalent vaccines, the LAA was found to be linear and accurate as compared to the SRID. The precision of the LAA was close to that of the standard test, and good reproducibility from one laboratory to another was observed. Moreover, the LAA enabled HA quantification in AlOOH adjuvanted and in emulsion-adjuvanted low-dose vaccines as well as unadjuvanted vaccines. In conclusion, LAA may be useful to rapidly and accurately measure influenza HA protein in monovalent vaccines, especially in those containing less than 5MUg/mL of HA in the presence of an adjuvant. PMID- 29030071 TI - Single reaction, real time RT-PCR detection of all known avian and human metapneumoviruses. AB - Current molecular methods for the detection of avian and human metapneumovirus (AMPV, HMPV) are specifically targeted towards each virus species or individual subgroups of these. Here a broad range SYBR Green I real time RT-PCR was developed which amplified a highly conserved fragment of sequence in the N open reading frame. This method was sufficiently efficient and specific in detecting all MPVs. Its validation according to the NF U47-600 norm for the four AMPV subgroups estimated low limits of detection between 1000 and 10copies/MUL, similar with detection levels described previously for real time RT-PCRs targeting specific subgroups. RNA viruses present a challenge for the design of durable molecular diagnostic test due to the rate of change in their genome sequences which can vary substantially in different areas and over time. The fact that the regions of sequence for primer hybridization in the described method have remained sufficiently conserved since the AMPV and HMPV diverged, should give the best chance of continued detection of current subgroups and of potential unknown or future emerging MPV strains. PMID- 29030072 TI - Percutaneous Vesicoscopic Approach for Retrograde Ureteroscopy Following Cohen Cross-trigonal Ureteral Reimplantation. AB - Obtaining retrograde access into a ureter that has been previously reimplanted in a cross-trigonal fashion can be a challenging procedure. We describe a percutaneous vesicoscopic approach to obtain access into a reimplanted ureter to perform ureteroscopy and laser lithotripsy. PMID- 29030073 TI - Comparative Analysis of Surgery, Thermal Ablation, and Active Surveillance for Renal Oncocytic Neoplasms. AB - OBJECTIVE: To compare oncological and procedural outcomes for renal oncocytic tumors treated with surgery, thermal ablation, or active surveillance. METHODS: Clinical and pathologic data were collected for consecutive patients with a histologic diagnosis of oncocytoma, oncocytic neoplasm, or chromophobe renal cell cancer (chRCC) from 2003 to 2016. Independent pathology and radiology reviews were performed for this study. RESULTS: Of 171 patients, tumor histology included oncocytoma (n = 122), chRCC (n = 47), and oncocytic neoplasm not otherwise specified (n = 2). At the initial diagnosis, 67, 14, and 90 patients were treated with surgery, thermal ablation, and active surveillance. In 3 of 19 patients (16%) who had biopsy and subsequent surgery, diagnosis changed from oncocytoma to chRCC. The median follow-up was 39.9 months with no difference among choices of treatment modalities (P = .33). Of 90 patients who began active surveillance, 32 (36%) switched to active treatments (19 underwent thermal ablation and 13 underwent surgery). The median linear growth rate for patients on active surveillance was 1.2 mm/y. No patients who were managed with active surveillance developed metastatic renal cell cancer (mRCC). mRCC was identified in 3 patients and was the cause of death in 2 patients. Patients who developed metastatic disease presented with symptomatic tumors of >4 cm and were treated with immediate surgery. For oncocytic masses of <=4 cm (n = 126), the 5-year cancer specific survival was 100%. CONCLUSION: Renal oncocytic neoplasms have favorable oncological outcomes. Active surveillance is safe and is the preferred management for small (<=4 cm) oncocytic renal tumors in selected patients. PMID- 29030074 TI - A Survey of Morcellator Preference and Cost Comparison of the Lumenis VersaCut and Wolf Piranha Morcellators. AB - OBJECTIVE: To evaluate operating room (OR) costs associated with the 2 available morcellators in the United States in a matched cohort and to determine benign prostatic hyperplasia surgeon's morcellator preference. MATERIALS AND METHODS: Patients from 2013, the last year our institution exclusively used the VersaCut device, were matched 1:1 with the most recent patient cohort, utilizing the Wolf Piranha morcellator. Cost of morcellation including the expense of OR time and disposable instrument costs were calculated. A survey to the Endourological Society e-mail listserv was sent to determine morcellator preference. RESULTS: We identified 142 patients who underwent holmium laser enucleation of the prostate in 2013. When compared with the VersaCut group, morcellation efficiency (4.4 vs 7.0 g/min, P <.01) and expense of OR time ($1420.80 vs $992.21, P <.005) both favored the Piranha morcellator system even when the costs of disposable instruments were factored into the analysis ($1338.81 vs $1637.50, P <.05). A total of 126 urologists responded to the survey. Of these, 56 (44.5%) perform transurethral prostate enucleations, which included 48 (86%) holmium. More endourologists use the VersaCut (n = 33, 59%) than the Piranha (n = 24, 43%) morcellator. Qualities that impacted the preference of morcellator included the preferred device is safer, faster, easier to use, reusable, and less expensive. CONCLUSION: We identified a significant improved efficiency and improved cost savings utilizing the Piranha morcellator even when controlling for disposable costs. Of the endourologists who responded to the survey, less than half perform transurethral enucleation. Morcellator preference is largely based on safety, efficiency, and ease of use, whereas cost and reusablility were of lesser importance. PMID- 29030075 TI - Giant Abdominal Wall Pseudocyst After Open Radical Cystectomy. AB - An abdominal wall pseudocyst refers to an encapsulated collection of fluid located superficially in the rectus abdominal muscles. This uncommon complication is diagnosed based on physical examination and computed tomography results. However, the etiology of its formation remains unclear. Abdominal wall pseudocyst can be effectively treated by surgery including complete excision of the cyst. Here, we report imaging findings of a giant pseudocyst in the anterior abdominal wall after an open radical cystectomy. PMID- 29030076 TI - Predictive Factors of De Novo Overactive Bladder After Artificial Urinary Sphincter Implantation in Men With Postprostatectomy Incontinence. AB - OBJECTIVE: To investigate the rates and predictive factors associated with the development of de novo overactive bladder (OAB) and to assess the effects of de novo OAB on surgical outcomes after an artificial urinary sphincter (AUS). MATERIALS AND METHODS: We performed a retrospective review of 132 patients with postprostatectomy incontinence who underwent AUS surgery. Urodynamic studies were performed during preoperative visits in all patients, and patients with OAB or neurogenic bladder were excluded. We assessed the development of de novo OAB based on patient symptoms. Treatment success was defined as no need for pads, and social continence was defined as the need for <=1pad per day at the end of the follow-up. A multivariate analysis was performed using a logistic regression model to assess predictors of de novo OAB. RESULTS: The rate of development of de novo OAB after surgery was 37.5%. The treatment success rate was significantly higher in the no-OAB group (72.4%) than in the de novo OAB group (55.4%) (P = .038). A low preoperative cystometric capacity of less than 300 mL (odds ratio 5.27, confidence interval 1.02-27.28; P = .048) and pelvic irradiation (odds ratio 3.18, confidence interval 1.01-10.03; P = .049) were predictive factors of de novo OAB after AUS surgery. CONCLUSION: De novo OAB occurs commonly after AUS surgery, and the presence of de novo OAB adversely impacts treatment success. Low preoperative cystometric capacity of less than 300 mL and pelvic irradiation predict the occurrence of de novo OAB after AUS implantation. PMID- 29030077 TI - Corticomuscular coherence reflects somatosensory feedback gains during motor adaptation. AB - Beta-band corticomuscular coherence (CMC) observed between the sensorimotor cortex activity and contracting muscle is declaratively described as a neurophysiological reflection of sensorimotor binding. However, much remains unknown about the functional meaning of 'sensorimotor binding.' The efficacy of information binding in the sensorimotor system is assumed to be influenced by the gain of the feedback controller, which is regulated through a process that may in part be implemented in the primary sensorimotor cortex (SM1). Thus, we predicted that CMC is modulated together with feedback gains during motor learning. We examined this hypothesis using a hand-reaching adaptation task under a novel dynamical environment. CMC modulation was assessed before and after adaptation, and feedback gains were probed by long latency triggered muscle reactions. Overall, we found that CMC significantly decreased during the adaptation period, and such CMC decrease was associated with the decreased long latency reflexes. These results suggest that CMC has a related function to modulation of feedback gains. Our findings provided an electrophysiological hallmark of the sensorimotor binding process, which was stated as a function of CMC but poorly understood. PMID- 29030079 TI - Quantitative temporal changes in DTI values coupled with histological properties in cuprizone-induced demyelination and remyelination. AB - Diffusion tensor imaging (DTI) is widely used to evaluate microstructural variations in brain tissue. In particular, fractional anisotropy (FA), reflecting the magnitude and orientation of anisotropic water diffusion, allows us to detect pathological events in white matter. An ex vivo DTI study coupled with histological assessment is an efficient strategy to evaluate the myelination process, i.e. demyelination and remyelination. The relationship between DTI values and myelin content or the individual cellular components such as oligodendrocytes, microglia, and astrocytes during both processes of demyelination and remyelination are not well-understood. To address this issue, we employed a cuprizone-inducible demyelination mouse model. Demyelination can be induced in this model during cuprizone exposure and termination of cuprizone exposure induces remyelination. We fed the mice cuprizone-containing chow for 4 weeks and then normal chow for an additional 4 weeks. The ex vivo DTI was performed to evaluate the white matter profiles observed by FA, mean diffusivity (MD), and radial diffusivity (RD) at both demyelinating and remyelinating time points, and then we evaluated histological properties at the same time points. The results indicated a gradual FA decrease during the cuprizone treatment (0, 2, 3, 4 weeks). A lower peak was seen at 1 week after the normal chow was resumed, with recovery to baseline at 2 and 4 weeks. MD and RD showed an opposing pattern to that of FA. These DTI values were positively or negatively correlated with myelin content regardless of the status of the white matter. The RD value was more sensitive to myelination status than FA and MD. We have clarified the temporal changes in the DTI values coupled with histological properties over both the demyelination and remyelination processes. PMID- 29030080 TI - [Effectiveness of pelvic floor rehabilitation in erectile dysfunction: A literature review]. AB - PURPOSE: The pelvic floor is now well known and its role in the mechanism of erection is demonstrated. We wanted to know what is the evidence of the effectiveness of perineal rehabilitation in erectile dysfunction. MATERIALS: An English search was performed in Google scholar and databases PubMed, Medline, Pedro with the keywords "pelvic floor, erectile dysfunction, impotence, physiotherapy, exercises, rehabilitation, PFMT". We have selected randomized clinical trials published in indexed journals. RESULTS: Six randomized trials were selected. Five of them have shown statistically and clinically significant effectiveness in populations of men with erectile dysfunction and various underlying pathologies. In the fifth trial, the difference in effectiveness was not statistically significant. At 3 months, the best-conducted study showed an average improvement of 7 points at IIEF-5 compared to the control group (P-value: 0.004). Rehabilitation has not resulted in any adverse side effects. However, these studies were conducted in heterogeneous populations and the protocols for pelvic floor muscle strengthening rehabilitation differed from one study to another, making it impossible to formulate a specific recommendation for clinical practice. CONCLUSION: Based on the results of this literature review, perineal physiotherapy may have a role to play in the management of erectile dysfunction. PMID- 29030081 TI - Afterword. PMID- 29030078 TI - Evaluation of the prognostic value of neutrophil to lymphocyte ratio in patients with hypertriglyceridemia-induced acute pancreatitis. AB - INTRODUCTION: Recent studies attribute promising prognostic values to various inflammatory biomarkers in acute pancreatitis, including the following: the neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and red cell distribution width (RDW). We aimed to determine the performance of these biomarkers for detecting disease severity in patients with hypertriglyceridemia induced acute pancreatitis (HTG-AP). METHODS: We retrospectively reviewed 110 patients with HTG-AP and compared the NLR, PLR, and RDW in different severity groups. We performed receiver-operating characteristic (ROC) analysis to identify the optimal cut-off value for NLR to predict severe AP. RESULTS: NLR was significantly higher in patients with severe AP than mild and moderately severe AP (14.6 vs. 6.9, p < 0.001), and higher with organ failure upon presentation (9.1 vs. 7.1, p = 0.026). After dichotomization by the optimal cut-off value of 10 as determined by the ROC curve, the high-NLR group had a significantly longer length of stay (9.1 vs. 6.6 days, p = 0.001), duration of nil per os (4.9 vs. 3.7 days, p = 0.007), and higher rates of complications, including systemic inflammatory response syndrome (81.5% vs. 44.6%, p = 0.001) and persistent acute kidney injury (25.9% vs. 3.6%, p < 0.001). High NLR independently predicted severe acute pancreatitis in multivariate analysis (Odds ratio 6.71, p = 0.019). CONCLUSION: NLR represents an inexpensive, readily available test with a promising value to predict disease severity in HTG-AP. Among the three inflammatory biomarkers, NLR has the highest discriminatory capacity for severe HTG-AP, with an optimal cut-off value of 10. PMID- 29030082 TI - ADX-47273, a mGlu5 receptor positive allosteric modulator, attenuates deficits in cognitive flexibility induced by withdrawal from 'binge-like' ethanol exposure in rats. AB - Repeated exposure to and withdrawal from ethanol induces deficits in spatial reversal learning. Data indicate that metabotropic glutamate 5 (mGlu5) receptors are implicated in synaptic plasticity and learning and memory. These receptors functionally interact with N-methyl-d-aspartate (NMDA) receptors, and activation of one type results in the activation of the other. We examined whether (S)-(4 fluorophenyl)(3-(3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl)-piperidin-1-yl (ADX 47273), a positive allosteric modulator (PAM) of mGlu5 receptor, attenuates deficits in reversal learning induced by withdrawal (11-13days) from 'binge-like' ethanol input (5.0g/kg, i.g. for 5days) in the Barnes maze (a spatial learning) task in rats. We additionally examined the effects of ADX-47273 on the expression of the NMDA receptors subunit, GluN2B, in the hippocampus and prefrontal cortex, on the 13th day of ethanol withdrawal. Herein, withdrawal from repeated ethanol administration impaired reversal learning, but not the probe trial. Moreover, ADX 47273 (30mg/kg, i.p.) given prior to the first reversal learning trial for 3days in the Barnes maze, significantly enhanced performance in the ethanol-treated group. The 13th day of ethanol abstinence decreased the expression of the GluN2B subunit in the selected brain regions, but ADX-47273 administration increased it. In conclusion, positive allosteric modulation of mGlu5 receptors recovered spatial reversal learning impairment induced by withdrawal from 'binge-like' ethanol exposure. Such effect seems to be correlated with the mGlu5 receptors mediated potentiation of GluN2B-NMDA receptor mediated responses in the hippocampus and prefrontal cortex. Thus, our results emphasize the role of mGlu5 receptor PAM in the adaptive learning impaired by ethanol exposure. PMID- 29030083 TI - Human bone marrow mesenchymal stem cells secrete endocannabinoids that stimulate in vitro hematopoietic stem cell migration effectively comparable to beta adrenergic stimulation. AB - Granulocyte colony-stimulating factor (G-CSF) is a well-known hematopoietic stem cell (HSC)-mobilizing agent used in both allogeneic and autologous transplantation. However, a proportion of patients or healthy donors fail to mobilize a sufficient number of cells. New mobilization agents are therefore needed. Endocannabinoids (eCBs) are endogenous lipid mediators generated in the brain and peripheral tissues and activate the cannabinoid receptors CB1 and CB2. We suggest that eCBs may act as mobilizers of HSCs from the bone marrow (BM) under stress conditions as beta-adrenergic receptors (Adrbeta). This study demonstrates that BM mesenchymal stem cells (MSCs) secrete anandamide (AEA) and 2 arachidonylglycerol (2-AG) and the peripheral blood (PB) and BM microenvironment contain AEA and 2-AG. 2-AG levels are significantly higher in PB of the G-CSF treated group compared with BM plasma. BM mononuclear cells (MNCs) and CD34+ HSCs express CB1, CB2, and Adrbeta subtypes. CD34+ HSCs had higher CB1 and CB2 receptor expression in G-CSF-untreated and G-CSF-treated groups compared with MSCs. MNCs but not MSCs expressed CB1 and CB2 receptors based on qRT-PCR and flow cytometry. AEA- and 2-AG-stimulated HSC migration was blocked by eCB receptor antagonists in an in vitro migration assay. In conclusion, components of the eCB system and their interaction with Adrbeta subtypes were demonstrated on HSCs and MSCs of G-CSF-treated and G-CSF-untreated healthy donors in vitro, revealing that eCBs might be potential candidates to enhance or facilitate G-CSF-mediated HSC migration under stress conditions in a clinical setting. PMID- 29030085 TI - Are emotionally driven and addictive-like eating behaviors the missing links between psychological distress and greater body weight? AB - There is now a large body of evidence suggesting a significant association between emotional discomfort management, disordered eating behaviors and weight status. In the field of overweight and obesity, emotionally driven eating habits that resemble addictive behaviors are considered as a risk factor. This study aimed to investigate in a large sample of French university students 1) the associations between self-reported levels of psychological distress (PD), emotional eating (EE), food addiction (FA) and Body Mass Index (BMI); and 2) the potential mediation effect of eating behaviors (EE and FA) between PD and BMI. The responses of 1051 students (76.3% females) to self-reports assessing PD (Perceived Stress Scale, Hospital Anxiety and Depression Scale), EE (Intuitive Eating Scale-2) and FA (modified Yale Food Addiction Scale) were analysed. Associations between variables (Spearman correlation) and group comparisons by sex and BMI categories (Student's t tests/ANOVA) were tested, followed by Structural Equation Modeling (SEM) by sex. Among females and males, EE and FA scores were positively inter-related and correlated with PD scores and BMI. Moreover, among females and males, SEM showed that both EE and FA acts as mediators between PD and BMI. Hence, among educated young adults, using food consumption for down-regulating negative mood places the individual at risk for overweight and obesity. This study further emphasizes the necessity to take into account emotionally driven and addictive-like eating behaviors in interventions for promoting healthy eating and weight management. PMID- 29030084 TI - Characterization and use of the novel human multiple myeloma cell line MC-B11/14 to study biological consequences of CRISPR-mediated loss of immunoglobulin A heavy chain. AB - The genetic abnormalities underlying multiple myeloma (MM) are notoriously complex and intraclonal heterogeneity is a common disease feature. In the current study, we describe the establishment of a monoclonal immunoglobulin A (IgA) kappa (kappa) MM cell line designated MC-B11/14. Cytogenetic and fluorescence in situ hybridization analyses of the original and relapse patient samples revealed that the MM clone was nonhyperdiploid and possessed an 11;14 chromosomal translocation. The MC-B11/14 cell line, established from the relapse sample, is tetraploid and houses the t(11;14) abnormality. Given our long-standing interest in Ig function and secretion, we next used CRISPR technology to knock out IgA heavy-chain expression in the MC-B11/14 cells to assess the biological consequences of converting this cell line to one only expressing kappa light chains. As expected, secretion of intact IgA was undetectable from MC-B11/14IgA- cells. Sensitivity to pomalidomide treatment was similar between the MC-B11/14WT and MC-B11/14IgA- cells; however, MC-B11/14IgA- cells were found to be significantly more resistant to bortezomib treatment. This study describes the establishment of a new human MM cell line tool with which to study disease biology and the use of CRISPR technology to create a potentially useful model with which to study MM light-chain escape. PMID- 29030086 TI - Impact of type, size and shape of plates on hospital patients' perceptions of the quality of meals and satisfaction with foodservices. AB - Hospital meals are important for supporting nutrition goals and the overall hospital experience. The aim of this study was to assess if patients' perceptions of quality attributes of hot meals were impacted by the type of plate on which the meal was served. Eligible patients selected from medical and/or surgical wards at a 929 bed acute care hospital were randomised to receive hot meals served on either ceramic or disposable plates at eight evening meals. Patients from a multi-centre trial of pre-packaged meals where re-thermalised meals were presented on a variety of colour and shaped disposable plates were included in a second phase. Patient assessment of meal quality was undertaken using the Meal Assessment Tool (MAT)(Hannan-Jones & Capra, 2017) with data collected by interview. In phase one, 137 eligible patients competed the MAT (response 46.8%), with results showing no significant difference in the rating of appearance, quality, expectations or satisfaction when meals were served on disposable or ceramic plates. In phase two data were collected from 6189 patients (response 47.4%). No practical difference in rating of meals was found in relation to colour and sectioning of plates, however a statistical but non-practical difference was found regarding plate shape, with meals served on oblong/rectangular plates rated more positively. Of 3078 comments made concerning the meals, 99 (3.2%) concerned the plates on which the meals were served. This study has shown that quality, appearance and taste of meals, rather than the serving ware are important to patients. Findings suggest that attending to other quality aspects of meals may be far more important than the plate itself, and deserve attention. PMID- 29030087 TI - Current insights on the role of iron and copper dyshomeostasis in the pathogenesis of bilirubin neurotoxicity. PMID- 29030088 TI - Effects of N-acetylcysteine on isolated skeletal muscle contractile properties after an acute bout of aerobic exercise. AB - AIMS: The current study tested the hypotheses that 1) an acute bout of aerobic exercise impairs isolated skeletal muscle contractile properties and 2) N acetylcysteine (a thiol antioxidant; NAC) administration can restore the impaired muscle contractility after exercise. MAIN METHODS: At rest or immediately after an acute bout of aerobic exercise, extensor digitorum longus (EDL) and soleus muscles from male Wistar rats were harvested for ex vivo skeletal muscle contraction experiments. Muscles from exercised animals were incubated in Krebs Ringer's buffer in absence or presence of 20mM of NAC. Force capacity and fatigue properties were evaluated. KEY FINDINGS: Exercised EDL and soleus displayed lower force production across various stimulation frequencies (p<0.001), indicating that skeletal muscle force production was impaired after an acute bout of exercise. However, NAC treatment restored the loss of force production in both EDL and soleus after fatiguing exercise (p<0.05). Additionally, NAC treatment increased relative force production at different time points during a fatigue induced protocol, suggesting that NAC treatment mitigates fatigue induced by successive contractions. SIGNIFICANCE: NAC treatment improves force capacity and fatigue properties in ex vivo skeletal muscle from rats submitted to an acute bout of aerobic exercise. PMID- 29030089 TI - Knockdown of HIF-1alpha inhibits the proliferation and migration of outer root sheath cells exposed to hypoxia in vitro: An involvement of Shh pathway. AB - AIMS: Outer root sheath (ORS) is a highly proliferative component of a hair follicle. This study is performed to investigate whether hypoxia-induced elevation of hypoxia-inducible factor (HIF)-1alpha, a transcriptional activator, contributes to the outgrowth of ORS cells in vitro. MAIN METHODS: Hair follicles with intact ORS collected from 4-month old male American minks were cultured in normoxic or hypoxic condition (3% oxygen) for 7days. Primary ORS cells isolated from the mink hair follicles were exposed to hypoxia for 12, 24 or 48h, and their proliferation was analyzed with immunofluorescence assay using anti-proliferating cell nuclear antigen (PCNA) antibody. The migratory ability of ORS cells was detected via the transwell chamber. The endogenous HIF-1alpha was knocked down with its specific siRNA in ORS cells. KEY FINDINGS: Hypoxic exposure induced an elevation of HIF-1alpha in ex vivo cultured hair follicles. The mRNA and protein levels of sonic hedgehog (Shh), Shh receptor Patched 1, Smoothened and glioma associated oncogene homologue 1 were upregulated. In vitro, hypoxia induced an increase in HIF-1alpha in ORS cells. Further, under hypoxic condition, the number of PCNA-positive cells was increased, and more cells migrated towards high serum media. Hypoxia-enhanced proliferation and migration of ORS cells were suppressed either by HIF-1alpha siRNA or by pharmacological inhibitors of Shh pathway, cyclopamine and GANT61. The activation of Shh pathway was attenuated in HIF 1alpha-silenced ORS cells under hypoxic condition. SIGNIFICANCE: Our work demonstrates a direct role of activated HIF-1/Shh biological axis in sustaining the development of ORS in vitro. PMID- 29030090 TI - Differential expression of CCR4 in primary cutaneous gamma/delta (gamma/delta) T cell lymphomas and mycosis fungoides: Significance for diagnosis and therapy. PMID- 29030091 TI - Clinical characteristics of acute promyelocytic leukemia with the STAT5B-RARA fusion gene. PMID- 29030092 TI - A Phase II Study of CLAG Regimen Combined With Imatinib Mesylate for Relapsed or Refractory Acute Myeloid Leukemia. AB - INTRODUCTION: No standard salvage chemotherapy regimen is available for relapsed or refractory (RR) acute myeloid leukemia (AML). Preclinical data have suggested synergy in vitro between cytarabine and imatinib mesylate (IM) on AML cell growth inhibition. After demonstrating the safety and feasibility in a phase I study, we conducted a phase II clinical study of CLAG (cladribine, cytarabine, granulocyte colony-stimulating factor) regimen combined with IM for patients with RR-AML. PATIENTS AND METHODS: We performed a single-institution 2-stage phase II study. The primary endpoint was the remission rate measured using the standard AML response criteria. The secondary endpoints included overall survival (OS) and progression-free survival (PFS). RESULTS: From August 2009 to April 2011, 38 patients were treated at the Moffitt Cancer Center. Their median age was 62 years (range, 26-79 years). Of the 38 patients, 7 (18%) had refractory AML, 19 (50%) had early relapse, and 12 (32%) had late relapse. At the original diagnosis, only 2 patients had favorable risk factors, 18 had intermediate risk, and 16 had poor risk; for 2 patients, the karyotype was missing. The overall response rate for all 38 evaluable patients was 37%. The median OS was 11.1 months (95% CI, 4.8 13.4 months), the median PFS was 4.9 months (95% CI, 1.6-11.7 months). Among the responders, 8 of 14 patients subsequently underwent allogeneic hematopoietic cell transplantation. CONCLUSION: CLAG plus IM was well tolerated, with encouraging signs of activity in patients with poor-risk AML. PMID- 29030093 TI - Estimating past inhalation exposure to asbestos: A tool for risk attribution and disease screening. AB - INTRODUCTION: Late presentation is common in mesothelioma. Reliable assessment of past exposure to asbestos is a necessary first step for risk attribution and for the development of a future screening programme. Such a programme could maximise access to trials of novel therapies and would pave the way for development of novel chemoprophylaxis strategies. This paper describes a method for individual exposure reconstruction along with data from a validation study. METHODS: The exposure assessment method uses only descriptive information about the circumstances of the work that could be obtained from questioning the worker. The assessment is based on the tasks carried out and includes parameters for substance emission potential, activity emission potential, the effectiveness of any local control measures, passive emission, the fractional time the asbestos source is active and the efficiency of any respiratory protection worn. RESULTS: There was a good association between the estimated and measured exposure levels. Pearson's correlation coefficient between the log-transformed measurements and estimates from the model was 0.86, and 95% of the estimated individual values were within about a factor of ten of the associated measured value. The method described would be suitable for pre-selecting individuals at high risk of malignant pleural mesothelioma for screening using appropriate tools and/or enrolment in clinical trials of chemo-prophylaxis. DISCUSSION: This method is of potential clinical value in developing novel treatment approaches for mesothelioma. Pilot studies to test this approach are urgently needed. PMID- 29030095 TI - Postoperative Rehabilitation Following Thumb Base Surgery: A Systematic Review of the Literature. AB - OBJECTIVE: To provide an overview of rehabilitation for patients who underwent first carpometacarpal joint (CMC-1) arthroplasty, with emphasis on early active mobilization. DATA SOURCES: PubMed/MEDLINE, Embase, CINAHL, and Cochrane were searched. STUDY SELECTION: Articles written in English that described the postoperative regimen (including immobilization period/method and/or description of exercises/physical therapy, follow-up 6wk) on CMC-1 arthroplasty were included. DATA EXTRACTION: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement was used as guidance in this review, and methodological quality was assessed using the Effective Public Health Practice Project quality assessment tool. Randomized studies were additionally scored using the Physiotherapy Evidence Database scale. DATA SYNTHESIS: Twenty-seven studies were included consisting of 1015 participants, in whom 1118 surgical procedures were performed. A summary of the components of postoperative rehabilitation used in the included studies of CMC-1 osteoarthritis is presented for different surgical interventions. We found that early active recovery (including short immobilization, early initiation of range of motion and strength exercises) provides positive outcomes for pain, limitations in activities of daily living, and grip and pinch strength, but comparative studies are lacking. Furthermore, 3 postoperative exercises/therapy phases were identified in the literature-the acute phase, the unloaded phase, and the functional phase-but again comparative studies are lacking. CONCLUSIONS: Early active recovery is used more often in the literature and does not lead to worse outcomes or more complications. This systematic review provides guidance for clinicians in the content of postoperative rehabilitation for CMC-1 arthroplasty. The review also clearly identifies the almost complete lack of high-quality comparative studies on postoperative rehabilitation after CMC-1 arthroplasty. PMID- 29030094 TI - Particulate matter air pollution, physical activity and systemic inflammation in Taiwanese adults. AB - BACKGROUND: The protective effects of physical activity (PA) against chronic disease can be partially ascribed to its anti-inflammatory effects. On the other hand, long-term exposure to particulate matter with an aerodynamic diameter less than 2.5MUm (PM2.5) may induce systemic inflammation. OBJECTIVE: To investigate the joint effects of habitual PA and long-term exposure to PM2.5 on systemic inflammation in a large cohort of Taiwanese adults. METHODS: We studied 359,067 adult participants from a cohort consisting of Taiwanese residents who participated in a standard medical examination program from 2001 to 2014. Peripheral white blood cell (WBC) and differential counts were measured as indicators of systemic inflammation. Two-year average concentration of PM2.5 was estimated at each participant's address using a satellite-based spatio-temporal model. Habitual PA level was assessed by questionnaire (inactive, low, moderate and high). Mixed-effects linear regression model was used to examine the associations of WBC counts with PM2.5 and PA. RESULTS: Compared with inactive participants, those with low, moderate or high PA levels had 0.36% [95% confidence interval (CI): 0.31%, 0.41%], 0.70% (95%CI: 0.65%, 0.76%) and 1.16% (95%CI: 1.11%, 1.22%) lower WBC counts, respectively, after adjusting for PM2.5 exposure and a wide range of confounders. Long-term PM2.5 exposure was associated with increased WBC counts at all PA levels. Analyses for differential counts generated similar results. No significant interaction was observed between PA and PM2.5 exposure (P for interaction=0.59). CONCLUSIONS: Habitual PA was associated with statistically significant lower markers of systemic inflammation across different levels of PM2.5. Effects of PA and PM2.5 exposure on systemic inflammation are independent. PMID- 29030096 TI - Medical Safety Huddles in Rehabilitation: A Novel Patient Safety Strategy. AB - OBJECTIVE: To describe the implementation process, outcomes, and lessons learned in the implementation of medical safety huddles, a novel patient safety monitoring strategy that promotes physician engagement with patient safety. DESIGN: Single-center observational study. SETTING: Brain and spinal cord injury rehabilitation program at an urban, academic adult rehabilitation hospital. PARTICIPANTS: Physicians associated with the program (N=18). INTERVENTIONS: Weekly physicians' safety huddles were implemented to review, anticipate, and address patient safety issues. MAIN OUTCOME MEASURES: Main outcome measures were the number and nature of identified and anticipated patient safety incidents, actions taken, and physician attendance during huddles. The number of adverse events in the program before and after huddle implementation were secondary measures. RESULTS: Over a 7-month period, average physician attendance at medical huddles was 76.0%. There were 1.0+/-0.8 patient safety incidents and 3.2+/-2.1 anticipated patient safety issues identified in each weekly huddle. Most patient safety incidents identified were clinical administrative and clinical process related, which differed from information gathered from the organization's preexisting patient safety monitoring strategies. A total of 79 actions, or 3.3+/ 1.8 actions per huddle, were taken in response to improve patient safety for the program. Adverse events decreased from 31.2 (95% confidence interval [CI], 27.0 35.3) to 22.9 per month (95% CI, 19.3-26.5) after implementation. CONCLUSIONS: Medical safety huddles are a novel strategy to engage physicians in patient safety and organizational quality improvement. They have the potential to enhance organizational anticipation of safety risks by supplementing existing methods. Other rehabilitation settings may wish to consider implementing and evaluating similar huddles into their existing patient safety and quality improvement frameworks. PMID- 29030097 TI - Transient vimentin expression during the embryonic development of the chicken cerebellum. AB - Complex morphogenetic events, critical for the development of normal cerebellum foliation and layering, are known to involve type III intermediate filament protein such as vimentin expressed by Bergmann glia. The present study aimed to determine aspects of intermediate and late embryonic pattern of vimentin expression during the corticogenesis of chicken cerebellum at embryonic days 10 19 (E10-E19), using single and double immunohistochemistry/immunofluorescence. Vimentin expression showed partial co-localization with the glial markers GFAP and BLBP. Within cerebellar cortex, vimentin+ fibers were first found within lobules I and X (E10) and gradually extended to all folia (E15-E17), located within the external granule (EGL) the molecular cell layer, showing a radial orientation towards the inner granular layer and the cerebellar white matter oriented longitudinally. Interestingly, within the immature fissures base of most lobules, vimentin+ fibers radiate in a fan shape. Short-term BrdU experiments revealed that EGL cell proliferation was higher in the fissure base compared to folia apex. In addition, following 24-h survival, BrdU+ cells were found in close association to vimentin+ fibers in the EGL pre-migratory zone and within immature molecular layer. Paralleling cerebellum development, vimentin expression gradually extended to all folia sub-regions (base, wall, apex), but, at day E19, it was mainly confined to the folia apex and secondary fissure base. Taken together our data further support the possible role of vimentin+ fibers in the structural events of cerebellum corticogenesis, suggesting the participation of radial/Bergmann glia in chicken cerebellum foliation, similarly to that described for mammalian cerebellum morphogenesis. PMID- 29030099 TI - A Comprehensive Review of Hirudiniasis: From Historic Uses of Leeches to Modern Treatments of Their Bites. AB - Exposure to leeches in the wilderness setting is common. Leeches may attach themselves to exposed skin or pass through one of the body's orifices and attach internally. The condition of leech attachment is known as hirudiniasis, which can result in serious morbidity and, rarely, mortality. A comprehensive review of the literature was performed to detail the prevention of leech attachment, as well as both anecdotal and studied methods of removal. Complications from leech attachments include ongoing bleeding, wound infection, and poor wound healing. Although medicinal leeches are the most well-studied variety, this review examines all aspects of leech attachment, prevention, and management. PMID- 29030098 TI - MetaNetter 2: A Cytoscape plugin for ab initio network analysis and metabolite feature classification. AB - Metabolomics frequently relies on the use of high resolution mass spectrometry data. Classification and filtering of this data remain a challenging task due to the plethora of complex mass spectral artefacts, chemical noise, adducts and fragmentation that occur during ionisation and analysis. Additionally, the relationships between detected compounds can provide a wealth of information about the nature of the samples and the biochemistry that gave rise to them. We present a biochemical networking tool: MetaNetter 2 that is based on the original MetaNetter, a Cytoscape plugin that creates ab initio networks. The new version supports two major improvements: the generation of adduct networks and the creation of tables that map adduct or transformation patterns across multiple samples, providing a readout of compound relationships. We have applied this tool to the analysis of adduct patterns in the same sample separated under two different chromatographies, allowing inferences to be made about the effect of different buffer conditions on adduct detection, and the application of the chemical transformation analysis to both a single fragmentation analysis and an all-ions fragmentation dataset. Finally, we present an analysis of a dataset derived from anaerobic and aerobic growth of the organism Staphylococcus aureus demonstrating the utility of the tool for biological analysis. PMID- 29030100 TI - Antimicrobial susceptibility profiles of oral Treponema species. AB - Treponemes occur in the microflora of the dental plaque. Certain Treponema species that are frequently isolated from chronic periodontitis lesions are involved in its initiation and progression. In addition to mechanical instrumentation, antimicrobial agents are used as an adjunctive treatment modality for periodontitis. Despite its importance for successful antimicrobial treatment, information about susceptibility is limited for Treponema species. The aim of this study was to assess the susceptibility of Treponema denticola strains, Treponema socranskii, and Treponema vincentii to eleven antimicrobial agents. The minimum inhibitory and minimum bactericidal concentrations of these antimicrobial agents revealed strain-specific variation. Doxycycline, minocycline, azithromycin, and erythromycin were effective against all Treponema species tested in this study, whereas fluoroquinolones only exhibited an equivalent effectiveness on T. socranskii. The susceptibility of one T. denticola strain, T. socranskii, and T. vincentii to kanamycin was influenced by prior exposure to aerobic conditions. The susceptibility to quinolone drugs varied among strains of T. denticola, although they share an amino acid sequence identity of greater than 99% for DNA gyrase (type II topoisomerase) subunit A. In addition, an ATP-binding cassette (ABC) transporter inhibitor assay for T. denticola indicated that the transport of quinolone drugs is partially related to this transporter, although there may be parallel transport mechanisms. Our results provide important insights into antimicrobial agent-Treponema dynamics and establish a basis for developing an appropriate adjunctive therapy for periodontal disease. PMID- 29030102 TI - Lolium perenne peptides for treatment of grass pollen allergy: A randomized, double-blind, placebo-controlled clinical trial. PMID- 29030101 TI - Genome-wide association study and meta-analysis in multiple populations identifies new loci for peanut allergy and establishes C11orf30/EMSY as a genetic risk factor for food allergy. AB - BACKGROUND: Peanut allergy (PA) is a complex disease with both environmental and genetic risk factors. Previously, PA loci were identified in filaggrin (FLG) and HLA in candidate gene studies, and loci in HLA were identified in a genome-wide association study and meta-analysis. OBJECTIVE: We sought to investigate genetic susceptibility to PA. METHODS: Eight hundred fifty cases and 926 hyper-control subjects and more than 7.8 million genotyped and imputed single nucleotide polymorphisms (SNPs) were analyzed in a genome-wide association study to identify susceptibility variants for PA in the Canadian population. A meta-analysis of 2 phenotypes (PA and food allergy) was conducted by using 7 studies from the Canadian, American (n = 2), Australian, German, and Dutch (n = 2) populations. RESULTS: An SNP near integrin alpha6 (ITGA6) reached genome-wide significance with PA (P = 1.80 * 10-8), whereas SNPs associated with Src kinase-associated phosphoprotein 1 (SKAP1), matrix metallopeptidase 12 (MMP12)/MMP13, catenin alpha3 (CTNNA3), rho GTPase-activating protein 24 (ARHGAP24), angiopoietin 4 (ANGPT4), chromosome 11 open reading frame (C11orf30/EMSY), and exocyst complex component 4 (EXOC4) reached a threshold suggestive of association (P <= 1.49 * 10 6). In the meta-analysis of PA, loci in or near ITGA6, ANGPT4, MMP12/MMP13, C11orf30, and EXOC4 were significant (P <= 1.49 * 10-6). When a phenotype of any food allergy was used for meta-analysis, the C11orf30 locus reached genome-wide significance (P = 7.50 * 10-11), whereas SNPs associated with ITGA6, ANGPT4, MMP12/MMP13, and EXOC4 and additional C11orf30 SNPs were suggestive (P <= 1.49 * 10-6). Functional annotation indicated that SKAP1 regulates expression of CBX1, which colocalizes with the EMSY protein coded by C11orf30. CONCLUSION: This study identifies multiple novel loci as risk factors for PA and food allergy and establishes C11orf30 as a risk locus for both PA and food allergy. Multiple genes (C11orf30/EMSY, SKAP1, and CTNNA3) identified by this study are involved in epigenetic regulation of gene expression. PMID- 29030103 TI - Combining region- and network-level brain-behavior relationships in a structural equation model. AB - Brain-behavior associations in fMRI studies are typically restricted to a single level of analysis: either a circumscribed brain region-of-interest (ROI) or a larger network of brain regions. However, this common practice may not always account for the interdependencies among ROIs of the same network or potentially unique information at the ROI-level, respectively. To account for both sources of information, we combined measurement and structural components of structural equation modeling (SEM) approaches to empirically derive networks from ROI activity, and to assess the association of both individual ROIs and their respective whole-brain activation networks with task performance using three large task-fMRI datasets and two separate brain parcellation schemes. The results for working memory and relational tasks revealed that well-known ROI-performance associations are either non-significant or reversed when accounting for the ROI's common association with its corresponding network, and that the network as a whole is instead robustly associated with task performance. The results for the arithmetic task revealed that in certain cases, an ROI can be robustly associated with task performance, even when accounting for its associated network. The SEM framework described in this study provides researchers additional flexibility in testing brain-behavior relationships, as well as a principled way to combine ROI- and network-levels of analysis. PMID- 29030104 TI - FReM - Scalable and stable decoding with fast regularized ensemble of models. AB - Brain decoding relates behavior to brain activity through predictive models. These are also used to identify brain regions involved in the cognitive operations related to the observed behavior. Training such multivariate models is a high-dimensional statistical problem that calls for suitable priors. State of the art priors -eg small total-variation- enforce spatial structure on the maps to stabilize them and improve prediction. However, they come with a hefty computational cost. We build upon very fast dimension reduction with spatial structure and model ensembling to achieve decoders that are fast on large datasets and increase the stability of the predictions and the maps. Our approach, fast regularized ensemble of models (FReM), includes an implicit spatial regularization by using a voxel grouping with a fast clustering algorithm. In addition, it aggregates different estimators obtained across splits of a cross-validation loop, each time keeping the best possible model. Experiments on a large number of brain imaging datasets show that our combination of voxel clustering and model ensembling improves decoding maps stability and reduces the variance of prediction accuracy. Importantly, our method requires less samples than state-of-the-art methods to achieve a given level of prediction accuracy. Finally, FreM is much faster than other spatially-regularized methods and, in addition, it can better exploit parallel computing resources. PMID- 29030106 TI - The Shift From Sentinel Lymph Node Biopsy Performed Either Before or After Neoadjuvant Systemic Therapy in the Clinical Negative Nodes of Breast Cancer Patients. Results, and the Advantages and Disadvantages of Both Procedures. AB - BACKGROUND: In patients with breast cancer who are candidates for neoadjuvant therapy (NAT), the timing of when to perform sentinel lymph node biopsy (SLNB) remains under discussion. The aim of this study was to compare the advantages and disadvantages of SLNB performed before and after NAT. PATIENTS AND METHODS: One hundred seventy-two patients, T1c to T3 and N0 (clinically and according to ultrasound) candidates for NAT were included. We compared the outcomes of 2 groups: (1) 122 patients of whom SLNB was performed before NAT (pre-NAT) from December 2006 to April 2014; and (2) 50 patients with SLNB performed after NAT (post-NAT) from May 2014 to July 2016. RESULTS: Both groups were homogeneous in baseline patient characteristics. The SLNB was positive in 50 patients [41.7%] (33 macrometastases [66%] and 17 micrometastases [34%]) versus 6 patients [12%] (5 macrometastases [83.3%] and 1 micrometastases [16.7%]) in pre- and post-NAT groups, respectively. The lymphadenectomy was performed in 34 patients [28.3%] versus 4 patients [8%], with an odds ratio of 3.48 (95% confidence interval, 1.3 9.3). The recurrences in the pre-NAT group after a median follow-up of 62 months were 12 systemic, 2 local and systemic, and none axillary. In the post-NAT group were no recurrences after a median follow-up of 16 months. Finally, SLNB after NAT reduces the delay in starting NAT from 24 to 14 days (medians; P < .001) and the identification of the SLNB was in 122 patients [100%] versus 49 patients [98%]. CONCLUSION: SLNB performed after NAT significantly reduces the rate of lymphadenectomies without any increase in recurrences at early follow-up. Furthermore, it allows systemic treatment to be started earlier without interfering in the SLNB identification rate. PMID- 29030107 TI - Ammodytin L is the main cardiotoxic component of the Vipera ammodytes ammodytes venom. AB - Venom of the nose-horned viper (V. a. ammodytes) as also venoms of some related European viperids can induce also cardiotoxic effects in mammals. In this work we demonstrated that the protein in the V. a. ammodytes venom acting on heart is a myotoxic secreted phospholipase A2 analogue ammodytin L (AtnL). In the isolated perfused rat heart AtnL induced significant and irreversible cardiotoxicity characterized by atrioventricular (AV) blockade. This venom protein induced appearance of high levels of creatine kinase, lactate dehydrogenase, aspartate aminotransferase and troponin I in the sinus effluent of the isolated heart, indicative for myocardial damage, which is obviously the primary cause of its cardiotoxic action. Gel filtration chromatography subfractions C1 and C2 of the V. a. ammodytes venom harboured most of the venom cardiotoxicity. As we showed, just these two subfractions contained also AtnL. Subfraction C1 in the final CF concentration 11.3 MUg/mL (containing 3.1 MUg/mL AtnL) induced a complete cardiac arrest while subfraction C2 in the final CF concentration 6.0 MUg/mL (containing 0.8 MUg/mL AtnL) and the pure AtnL (1.0 MUg/mL) did not. Contrary to AtnL, subfraction C1 at 11.3 MUg/mL was not able to induce the AV blockade. This exposed the only other cardiotoxic subfractions-specific venom protein, a cysteine-rich secretory protein (CRISP), as an additional venom component potentially involved in modulation of the heart activity. Cardiotoxicity reported in some cases of the adder (V. berus) venom and the asp viper (V. aspis) venom poisonings may be assigned to AtnL in these venoms. PMID- 29030105 TI - Definition and characterization of an extended multiple-demand network. AB - Neuroimaging evidence suggests that executive functions (EF) depend on brain regions that are not closely tied to specific cognitive demands but rather to a wide range of behaviors. A multiple-demand (MD) system has been proposed, consisting of regions showing conjoint activation across multiple demands. Additionally, a number of studies defining networks specific to certain cognitive tasks suggest that the MD system may be composed of a number of sub-networks each subserving specific roles within the system. We here provide a robust definition of an extended MDN (eMDN) based on task-dependent and task-independent functional connectivity analyses seeded from regions previously shown to be convergently recruited across neuroimaging studies probing working memory, attention and inhibition, i.e., the proposed key components of EF. Additionally, we investigated potential sub-networks within the eMDN based on their connectional and functional similarities. We propose an eMDN network consisting of a core whose integrity should be crucial to performance of most operations that are considered higher cognitive or EF. This then recruits additional areas depending on specific demands. PMID- 29030108 TI - Enclosure utilisation and activity budgets of disabled Malayan sun bears (Helarctos malayanus). AB - Captive bears are housed in environments that differ greatly from their natural habitat, restricting their ability to perform normal species-specific behaviours. This may be detrimental to welfare, with disabled individuals at particular risk. The effect of physical disability on behaviour and enclosure utilisation was assessed in 12 adult Malayan sun bears (Helarctos malayanus) using 10min interval scan sampling. Amputees spent less time performing locomotor behaviours than able bodied bears, used their enclosures less evenly, but did not exhibit obvious stereotypies. This was possibly due to the increased energy demands of locomotion, or residual pain in amputated limbs. Amputees spent less time grooming, but did not differ in time spent climbing compared with non-amputees. Partially sighted bears did not differ from able-bodied controls in enclosure use or behaviour. Age was positively correlated with stereotypical behaviour, and negatively correlated with maintenance and resting. Medication use was associated with more resting and grooming, and reduced stereotypy. The findings suggest that enclosures for amputees can be smaller than those for able-bodied bears, but should still contain a variety of climbing structures. Partially sighted bears fare well in enclosures designed for able-bodied bears, not requiring any special provision. PMID- 29030109 TI - Social information changes stress hormone receptor expression in the songbird brain. AB - Social information is used by many vertebrate taxa to inform decision-making, including resource-mediated movements, yet the mechanisms whereby social information is integrated physiologically to affect such decisions remain unknown. Social information is known to influence the physiological response to food reduction in captive songbirds. Red crossbills (Loxia curvirostra) that were food reduced for several days showed significant elevations in circulating corticosterone (a "stress" hormone often responsive to food limitation) only if their neighbors were similarly food restricted. Physiological responses to glucocorticoid hormones are enacted through two receptors that may be expressed differentially in target tissues. Therefore, we investigated the influence of social information on the expression of the mineralocorticoid receptor (MR) and glucocorticoid receptor (GR) mRNA in captive red crossbill brains. Although the role of MR and GR in the response to social information may be highly complex, we specifically predicted social information from food-restricted individuals would reduce MR and GR expression in two brain regions known to regulate hypothalamic pituitary-adrenal (HPA) activity - given that reduced receptor expression may lessen the efficacy of negative feedback and release inhibitory tone on the HPA. Our results support these predictions - offering one potential mechanism whereby social cues could increase or sustain HPA-activity during stress. The data further suggest different mechanisms by which metabolic stress versus social information influence HPA activity and behavioral outcomes. PMID- 29030110 TI - Where and what TMS activates: Experiments and modeling. AB - BACKGROUND: Despite recent developments in navigation and modeling techniques, the type and location of the structures that are activated by transcranial magnetic stimulation (TMS) remain unknown. OBJECTIVE: We studied the relationships between electrophysiological measurements and electric fields induced in the brain to locate the TMS activation site. METHODS: The active and resting motor thresholds of the first dorsal interosseous muscle were recorded in 19 subjects (7 female, 12 male, age 22 +/- 4 years) using anteromedially oriented monophasic TMS at multiple locations over the left primary motor cortex (M1). Structural MR images were used to construct electric field models of each subject's head and brain. The cortical activation site was estimated by finding where the calculated electric fields best explained the coil-location dependency of the measured MTs. RESULTS: The experiments and modeling showed individual variations both in the measured motor thresholds (MTs) and in the computed electric fields. When the TMS coil was moved on the scalp, the calculated electric fields in the hand knob region were shown to vary consistently with the measured MTs. Group-level analysis indicated that the electric fields were significantly correlated with the measured MTs. The strongest correlations (R2 = 0.69), which indicated the most likely activation site, were found in the ventral and lateral part of the hand knob. The site was independent of voluntary contractions of the target muscle. CONCLUSION: The study showed that TMS combined with personalized electric field modeling can be used for high-resolution mapping of the motor cortex. PMID- 29030112 TI - Sailing in a sea of disbelief: In vivo measurements of transcranial electric stimulation in human subcortical structures. PMID- 29030111 TI - Double-blind, proof-of-concept (POC) trial of Low-Field Magnetic Stimulation (LFMS) augmentation of antidepressant therapy in treatment-resistant depression (TRD). AB - BACKGROUND: Low-Field Magnetic Stimulation (LFMS) is a novel, non-invasive, sub threshold neuromodulation technique, shown in preliminary studies to have immediate mood elevating effects in both unipolar and bipolar depressed patients. OBJECTIVE: We aimed to assess the antidepressant augmentation effects at 48 h of LFMS administered on two consecutive days compared to sham treatment in treatment resistant depression (TRD) subjects, using the Sequential Parallel Comparison Design (SPCD). METHODS: Eighty-four eligible subjects with TRD were randomly assigned to double-blind treatment with LFMS 20 min/day for four days, sham treatment 20 min/day for four days, or sham treatment 20 min/day for 2 days followed by LFMS treatment 20 min/day for two days, using the pre-randomization version of the SPCD (randomization 1:1:1). The SPCD analyses used a repeated measures linear modeling approach with maximum likelihood estimation to use all available data, and using a 60-40 weighting of Stage 1 vs. 2 responses, with the primary outcome being measured after 2 and 4 days. RESULTS: Both primary and secondary outcome measures consistently showed no differences between LFMS treated patients and those treated with sham, with the exception of a slight, non significantly greater improvement than sham in the visual analogue scale (VAS) sad mood on LFMS-treated patients. LFMS treatment was relatively well tolerated. CONCLUSIONS: We did not observe a significantly greater, rapid efficacy of LFMS compared to sham therapy. Future studies need to examine the possible therapeutic effects of more intensive forms of LFMS, as other forms of neurostimulation typically require longer duration of exposure. PMID- 29030114 TI - Impairment of energy sensors, SIRT1 and AMPK, in lipid induced inflamed adipocyte is regulated by Fetuin A. AB - Although several reports demonstrated that accumulation of excess lipid in adipose tissue produces defects in adipocyte which leads to the disruption of energy homeostasis causing severe metabolic problems, underlying mechanism of this event remains yet unclear. Here we demonstrate that FetuinA (FetA) plays a critical role in the impairment of two metabolic sensors, SIRT1 and AMPK, in inflamed adipocytes of high fat diet (HFD) mice. A linear increase in adipocyte hypertrophy from 10 to 16 week was in tandem with the increase in FetA and that coincided with SIRT1 cleavage and decrease in pAMPK which adversely affects PGC1alpha activation. Knock down (KD) of FetA gene in HFD mice could significantly improve this situation indicating FetA's contribution in the damage of energy sensors in inflamed adipocyte. However, FetA effect was not direct, it was mediated through TNF-alpha which again is dependent on FetA as FetA augments TNF-alpha expression. FetA being an upstream regulator of TNF-alpha, its suppression prevented TNF-alpha mediated Caspase-1 activation and cleavage of SIRT1. FetA induced inactivation of PGC1alpha due to SIRT1 cleavage decreased PPARUpsilon, adiponectin, NRF1 and Tfam expression. All these together caused a significant fall in mitochondrial biogenesis and bioenergetics that disrupted energy homeostasis resulting loss of insulin sensitivity. Taken together, our findings revealed a new dimension of FetA, it not only induced inflammation in adipocyte but also acts as an upstream regulator of SIRT1 cleavage and AMPK activation. Intervention of FetA may be worthwhile to prevent metabolic imbalance that causes insulin resistance and type 2 diabetes. PMID- 29030113 TI - Proteomic analyses of signalling complexes associated with receptor tyrosine kinase identify novel members of fibroblast growth factor receptor 3 interactome. AB - Receptor tyrosine kinases (RTKs) form multiprotein complexes that initiate and propagate intracellular signals and determine the RTK-specific signalling patterns. Unravelling the full complexity of protein interactions within the RTK associated complexes is essential for understanding of RTK functions, yet it remains an understudied area of cell biology. We describe a comprehensive approach to characterize RTK interactome. A single tag immunoprecipitation and phosphotyrosine protein isolation followed by mass-spectrometry was used to identify proteins interacting with fibroblast growth factor receptor 3 (FGFR3). A total of 32 experiments were carried out in two different cell types and identified 66 proteins out of which only 20 (30.3%) proteins were already known FGFR interactors. Using co-immunoprecipitations, we validated FGFR3 interaction with adapter protein STAM1, transcriptional regulator SHOX2, translation elongation factor eEF1A1, serine/threonine kinases ICK, MAK and CCRK, and inositol phosphatase SHIP2. We show that unappreciated signalling mediators exist for well-studied RTKs, such as FGFR3, and may be identified via proteomic approaches described here. These approaches are easily adaptable to other RTKs, enabling identification of novel signalling mediators for majority of the known human RTKs. PMID- 29030116 TI - Population genetic data for 21 autosomal STR loci for the Saudi Arabian population using the GlobalFiler(r) PCR amplification kit. PMID- 29030117 TI - Biohydrogen production from hyperthermophilic anaerobic digestion of fruit and vegetable wastes in seawater: Simplification of the culture medium of Thermotoga maritima. AB - Biohydrogen production by the hyperthermophilic and halophilic bacterium T. maritima, using fruit and vegetable wastes as the carbon and energy sources was studied. Batch fermentation cultures showed that the use of a culture medium containing natural seawater and fruit and vegetable wastes can replace certain components (CaCl2, MgCl2, Balch's oligo-elements, yeast extract, KH2PO4 and K2HPO4) present in basal medium. However, a source of nitrogen and sulfur remained necessary for biohydrogen production. When fruit and vegetable waste collected from a wholesale market landfill was used, no decreases in total H2 production (139 mmol L-1) or H2 yield (3.46 mol mol-1) was observed. PMID- 29030115 TI - Store-Operated Ca2+ Entry Controls Clonal Expansion of T Cells through Metabolic Reprogramming. AB - Store-operated Ca2+ entry (SOCE) is the main Ca2+ influx pathway in lymphocytes and is essential for T cell function and adaptive immunity. SOCE is mediated by Ca2+ release-activated Ca2+ (CRAC) channels that are activated by stromal interaction molecule (STIM) 1 and STIM2. SOCE regulates many Ca2+-dependent signaling molecules, including calcineurin, and inhibition of SOCE or calcineurin impairs antigen-dependent T cell proliferation. We here report that SOCE and calcineurin regulate cell cycle entry of quiescent T cells by controlling glycolysis and oxidative phosphorylation. SOCE directs the metabolic reprogramming of naive T cells by regulating the expression of glucose transporters, glycolytic enzymes, and metabolic regulators through the activation of nuclear factor of activated T cells (NFAT) and the PI3K-AKT kinase-mTOR nutrient-sensing pathway. We propose that SOCE controls a critical "metabolic checkpoint" at which T cells assess adequate nutrient supply to support clonal expansion and adaptive immune responses. PMID- 29030118 TI - Seed germination test for toxicity evaluation of compost: Its roles, problems and prospects. AB - Compost is commonly used for the growth of plants and the remediation of environmental pollution. It is important to evaluate the quality of compost and seed germination test is a powerful tool to examine the toxicity of compost, which is the most important aspect of the quality. Now the test is widely adopted, but the main problem is that the test results vary with different methods and seed species, which limits the development and application of it. The standardization of methods and the modelization of seeds can contribute to solving the problem. Additionally, according to the probabilistic theory of seed germination, the error caused by the analysis and judgment methods of the test results can be reduced. Here, we reviewed the roles, problems and prospects of the seed germination test in the studies of compost. PMID- 29030119 TI - WEEE plastic sorting for bromine essential to enforce EU regulation. AB - The plastics of waste of electric and electronic equipment (WEEE) are improved for fire safety by flame retardants, and particularly brominated flame retardants (BFR). As waste, the management of these plastic fractions must comply with the update of the regulation of waste hazard classification (2014, 2017), the publication of a technical standard on management of WEEE (2015), and a restriction of use for decabromodiphenylether in the product regulation (2017). Data of bromine (n=4283) and BFR concentrations (n=98) in plastics from electric and electronic equipment (EEE), and from WEEE processing facilities before and after sorting for bromine in four sites in France have been studied for chemical composition and for regulatory classification. The WEEE was analysed by handheld X-ray fluorescence, and the waste was sorted after shredding, by on-line X-ray transmission for total bromine content (< or > 2000 mg/kg) in small household appliances (SHA), cathode ray tubes (CRT) and flat screens plastics. In equipment (n=347), 15% of the equipment items have no bromine, while 46% have at least one part with bromine, and 39% have all parts brominated. The bromine concentration in plastics is very heterogeneous, found in high concentrations in large household appliance (LHA) plastics, and also found in unexpected product categories, as observed by other authors. Clearly, an unwanted global loop of brominated substances occurs via the international recycling of plastic scrap. In waste (n=65), polybromobiphenyls, polybromodiphenylethers (PBDE), tetrabromobisphenol A (TBBPA) and hexabromocyclododecane were analysed. The most concentrated BFRs are decaBDE (3000 mg/kg) and TBBPA (8000 mg/kg). The bromine concentration of regulated brominated substances was identified in 2014 and 2015 to be up to 86% of total bromine in "old" waste (SHA, CRT), 30-50% in "younger" waste (Flat screens), and a mean of only 8% in recent products (2009-2013). Regulated substances are a minority of all the brominated substances and the only practical way to sort is to measure total bromine on-line. The sorting reduces the mean bromine concentration in the "Low Br" fraction in all sites, and reduces the decaBDE concentration to levels below the restricted use limit. After sorting, the concentration in the "High Br" fractions exceeds all present or future regulatory limits. In conclusion, sorting of small household appliances, cathode ray tubes and flat screen plastics is necessary to avoid uncontrolled dispersion of regulated substances in recycled raw material. Other categories (large household appliances, electric and electronic tools, lighting equipment) should also be considered, since their total bromine content (unweighted mean concentration) is high for some of these products. A European campaign consisting of 7 countries and 35 sites will begin in 2017, directed by WEEE Forum, the European association speaking for thirty-one not-for-profit e-waste producer responsibility organisations, to assess the mean bromine content of plastics from large household appliances after shredding. PMID- 29030120 TI - Hydrometallurgical recycling of lithium-ion batteries by reductive leaching with sodium metabisulphite. AB - The hydrometallurgical extraction of metals from spent lithium-ion batteries (LIBs) was investigated. LIBs were first dismantled and a fraction rich in the active material was obtained by physical separation, containing 95% of the initial electrode, 2% of the initial steel and 22% of plastic materials. Several reducers were tested to improve metals dissolution in the leaching step using sulphuric acid. Sodium metabisulphite led to the best results and was studied in more detail. The best concentration of Na2S2O5 was 0.1 M. The metals dissolution increased with acid concentration, however, concentrations higher than 1.25 M are unnecessary. Best results were reached using a stirring speed of 400 min-1. The metals leaching efficiency from the active material (Li, Mn, Ni, Co) increased with the temperature and was above 80% for temperatures higher than 60 degrees C. The dissolution of metals also rose with the increase in the liquid/solid ratio (L/S), however, extractions above 85% can be reached at L/S as lower as 4.5 L/kg, which is favourable for further purification and recovery operations. About 90% of metals extraction can be achieved after only 0.5 h of leaching. Sodium metabisulphite can be an alternative reducer to increase the leaching of Li, Mn, Co, and Ni from spent LIBs. PMID- 29030121 TI - Estimation of optimal biomass fraction measuring cycle formunicipal solid waste incineration facilities in Korea. AB - This study estimates the optimum sampling cycle using a statistical method for biomass fraction. More than ten samples were collected from each of the three municipal solid waste (MSW) facilities between June 2013 and March 2015 and the biomass fraction was analyzed. The analysis data were grouped into monthly, quarterly, semi-annual, and annual intervals and the optimum sampling cycle for the detection of the biomass fraction was estimated. Biomass fraction data did not show a normal distribution. Therefore, the non-parametric Kruskal-Wallis test was applied to compare the average values for each sample group. The Kruskal Wallis test results showed that the average monthly, quarterly, semi-annual, and annual values for all three MSW incineration facilities were equal. Therefore, the biomass fraction at the MSW incineration facilities should be calculated on a yearly cycle which is the longest period of the temporal cycles tested. PMID- 29030122 TI - A novel approach for recovery of metals from waste printed circuit boards and simultaneous removal of iron from steel pickling waste liquor by two-step hydrometallurgical method. AB - Waste printed circuit boards (WPCBs) and steel pickling waste liquor (SPWL) have received extensive attention in recent years because of its harmfulness and resource. In this work, two-step leaching process was carried out by using SPWL as the leaching agent. A series of continuously domesticated bacteria were used for bioleaching and the bacterial strain was identified as Acidithiobacillus ferrooxidans (A. ferrooxidans) by 16S rDNA gene sequence analysis. The vast majority of the metals in WPCBs were recovered by two-step leaching, such as Cu, Pb, Zn, Sn, Al, Ni. Meanwhile, a large amount of iron was removed from SPWL, which greatly reduces the burden of the subsequent treatment. Pulp density and pH were optimized to achieve maximum recovery of copper and simultaneous removal of iron in bioleaching. It was found that the optimum conditions were pulp density 60 g/L and pH 0.5-1.0. Nearly 100% of copper was recovered and 51.94% of iron was removed under optimum conditions. The kinetic experiments showed that the rate of copper leaching was controlled by external diffusion rather than internal diffusion, because the acidic environment of the leachate prevented the formation of the precipitate and maintained it in a smaller size. PMID- 29030123 TI - Results and complications of superficialis-to-profundus tendon transfer in brain damaged patients, a series of 26 patients. AB - INTRODUCTION: In hemiplegic patients with a spastic clenched fist deformity, one of the goals of surgery is to address the hygiene, nursing and appearance problems. Transfer of the flexor digitorum superficialis (FDS) to the flexor digitorum profundus (FDP), initially described by Braun and colleagues, opens the non-functional hand in these patients. The primary objective of our study was to confirm the effectiveness of this technique for correcting these deformities. The secondary objectives were to demonstrate potential functional gains and to identify potential complications. MATERIAL AND METHODS: A Braun procedure was performed in 26 patients (9 women, 17 men, ranging in age from 36 to 79 years). The overall appearance of the hand was graded using the Keenan classification system. Complications related to the surgery were documented. The hand's function was evaluated with the House score. RESULTS: The average follow-up was 47 months. Preoperatively, all patients had a class V hand: severe clenched-fist deformity with zero pulp-to-palm distance. Postoperatively, 10 patients had a type I hand (open hand, with less than 20 degrees spontaneous extension deficit of the metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints) and 12 patients had a type II hand (20 degrees to 40 degrees spontaneous extension deficit of the MCP and PIP joints). The mean House score for all patients went from 0 to 0.88, and seven patients had functional improvements. Four patients had a forearm supination posture, 10 had intrinsic deformity with spontaneous MCP flexion and 6 had a swan-neck deformity. CONCLUSION: Superficialis-to-profundus tendon transfer (STP) provides satisfactory outcomes in terms of hand opening, with some patients also experiencing improved hand function. However, the complications cannot be ignored. LEVEL OF EVIDENCE: IV-retrospective or historical series. PMID- 29030124 TI - Targeting nitric oxide and NMDA receptor-associated pathways in treatment of high grade glial tumors. Hypotheses for nitro-memantine and nitrones. AB - Glioblastoma multiforme (GBM) is a devastating brain cancer with no curative treatment. Targeting Nitric Oxide (NO) and glutamatergic pathways may help as adjunctive treatments in GBM. NO at low doses promotes tumorigenesis, while at higher levels (above 300 nM) triggers apoptosis. Gliomas actively secrete high amounts of glutamate which activates EGR signaling and mediates degradation of peritumoral tissues via excitotoxic injury. Memantine inhibits NMDA-subtype of glutamate receptors (NMDARs) and induces autophagic death of glioma cells in vitro and blocks glioma growth in vivo. Nitro-memantines may exert further benefits by limiting NMDAR signaling and by delivery of NO to the areas of excessive NMDAR activity leading NO-accumulation at tumoricidal levels within gliomas. Due to the duality of NO in tumorigenesis, agents which attenuate NO levels may also act beneficial in treatment of GBM. Nitrone compounds including N tert-Butyl-alpha-phenylnitrone (PBN) and its disulfonyl-phenyl derivative, OKN 007 suppress free radical formation in experimental cerebral ischemia. OKN-007 failed to show clinical efficacy in stroke, but trials demonstrated its high biosafety in humans including elderly subjects. PBN inhibits the signaling pathways of NF-kappaB, inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX). In animal models of liver cancer and glioblastoma, OKN-007 seemed more efficient than PBN in suppression of cell proliferation, microvascular density and in induction of apoptosis. OKN-007 also inhibits SULF2 enzyme, which promotes tumor growth via versatile pathways. We assume that nitromemantines may be more beneficial concomitant with chemo-radiotherapy while nitrones alone may act useful in suppressing basal tumor growth and angiogenesis. PMID- 29030125 TI - Prolactin gene expression in the pituitary of rats subjected to vaginocervical stimulation requires Erk-1/2 signaling. AB - Vaginocervical stimulation (VCS) induces twice-daily prolactin (PRL) surges resulting in pseudopregnancy in the rat. Furthermore, activation of the extracellular signal-regulated kinase-1/2 (Erk-1/2) is involved in the effect of estradiol (E2) on the Prl gene expression in pituitary cells. Herein, we investigated whether Erk-1/2 signaling is involved in the control of Prl expression in the pituitary of VCS rats and whether VCS regulates the effect of E2 on Erk-1/2 and Prl in the pituitary. Estrous rats were assigned as control or VCS groups and 0, 6, 12 or 24h later the levels and localization of phosphorylated Erk-1/2 (p-Erk-1/2) were analyzed in the pituitary. The effect of an Erk-1/2 inhibitor PD98059 on the Prl level in the pituitary of control or VCS rats was also analyzed. Other control or VCS rats were treated with E2 and the level of p-Erk-1/2 and Prl were measured in the pituitary. In control rats, p-Erk 1/2 decreased at 6 and 12h and increased at 24h while Erk-1/2 was phosphorylated at all time points in VCS rats. p-Erk-1/2 was localized only in the anterior pituitary. PD98059 decreased Prl level in VCS, but not in control rats. Estradiol decreased Erk-1/2 phosphorylation although did not change Prl level in the pituitary of control or VCS rats. These findings show that prolonged activation of Erk-1/2 is necessary to induce Prl expression in the pituitary of VCS rats; however, VCS does not influence the role of E2 on the activation of Erk-1/2 and Prl expression the pituitary. PMID- 29030126 TI - The pesticide Lindane induces dose-dependent damage to granulosa cells in an in vitro culture. AB - Lindane, which is one of the most persistent organochlorine pesticide contaminating the Aral Sea region, is associated with numerous pathologies of the female reproductive system, including infertility, due to its gap junction blocker activity. By using an in vitro model of reproductive toxicity consisting of mouse parietal granulosa cells (GCs) exposed to increasing concentrations of Lindane ranging from 1 to 100MUM (L1; L10; L100), we aimed to ascertain the Lindane toxicity by evaluating the ultrastructure and expression of the cell death protein p53. GCs exposed to L1 showed an early sign of degeneration as chromatin marginalization and initial reduction of cell-to-cell contacts. Such effects increased at L10 with nuclear membrane invagination, cytoplasmic blebbing, reduction of microvilli and intercellular connections. L100 induced evident cellular damages with an extensive presence of vacuoles, cytoplasmic fragments, nuclear membrane vesiculation and abundant cellular debris. A dose dependent increase of p53 expression was evident in the L1 and L10 groups but not in L100. These data provide evidence for a dose-dependent reproductive toxicity of the gap junction blocker Lindane, as seen in mouse GCs cultured in vitro by ultrastructural damage compatible with apoptosis. Since gap junctions may play a critical role in FSH-stimulated progesterone production, the ultrastructural damage here evidenced could explain the increase in the prevalence of reproductive pathologies and infertility in exposed women. Finally, this study provided a useful and repeatable model of reproductive toxicity in vitro, which is applicable to evaluate the detrimental effects of toxicants or the reversing effect of protective substances. PMID- 29030127 TI - A method for the isolation and enrichment of purified bovine milk exosomes. AB - Exosomes are nanovesicles that play important roles in intercellular communication as they carry information to target cells. Isolation of high purity exosomes will aid in studying the exosomal cargo and quantity as well as how cell specific messages are carried. We describe a new method incorporating size exclusion chromatography (SEC) to enrich milk-derived exosomes from extracellular vesicles (EVs). This involved the initial isolation of EVs from bovine milk via milk processing and ultracentrifugation; followed by a new method to enrich exosomes using SEC. This method was compared to buoyant density gradient centrifugation, a widely used method of enrichment. Exosomes were characterised by particle concentration and size (nanoparticle tracking analysis, NTA), morphology (transmission electron microscopy, TEM), presence of exosomal markers (immunoblotting) and protein concentration (bicinchoninic acid assay, BCA). Proteomic profiles of exosomal fractions were analyzed by mass spectrometry using Information Dependant Acquisition. Milk exosomal fractions were shown to contain exosomal markers flotillin-1 (FLOT-1) and tumor susceptibility gene-101 (TSG 101). The new method produced a higher yield of exosomes compared to buoyant density gradient centrifugation. Pooled exosomal fractions exhibited intact morphology by TEM. The use of SEC confirmed the fractionation of exosomes based on size while minimizing the interference with proteins. Tetraspanins CD9 and CD81 were observed via mass spectrometry in exosomal fractions. This new and efficient method confirmed the signatures for exosomes derived from unpasteurized bovine milk. Purification of exosomes is a foundational technique in the study of biomarkers for pathological conditions and effective drug delivery systems. PMID- 29030129 TI - Laryngeal and vocal alterations after thyroidectomy. AB - INTRODUCTION: Dysphonia is a common symptom after thyroidectomy. OBJECTIVE: To analyze the vocal symptoms, auditory-perceptual and acoustic vocal, videolaryngoscopy, the surgical procedures and histopathological findings in patients undergoing thyroidectomy. METHODS: Prospective study. Patients submitted to thyroidectomy were evaluated as follows: anamnesis, laryngoscopy, and acoustic vocal assessments. Moments: pre-operative, 1st post (15 days), 2nd post (1 month), 3rd post (3 months), and 4th post (6 months). RESULTS: Among the 151 patients (130 women; 21 men). Type of surgery: lobectomy+isthmectomy n=40, total thyroidectomy n=88, thyroidectomy+lymph node dissection n=23. Vocal symptoms were reported by 42 patients in the 1st post (27.8%) decreasing to 7.2% after 6 months. In the acoustic analysis, f0 and APQ were decreased in women. Videolaryngoscopies showed that 144 patients (95.3%) had normal exams in the preoperative moment. Vocal fold palsies were diagnosed in 34 paralyzes at the 1st post, 32 recurrent laryngeal nerve (lobectomy+isthmectomy n=6; total thyroidectomy n=17; thyroidectomy+lymph node dissection n=9) and 2 superior laryngeal nerve (lobectomy+isthmectomy n=1; Total thyroidectomy+lymph node dissection n=1). After 6 months, 10 patients persisted with paralysis of the recurrent laryngeal nerve (6.6%). Histopathology and correlation with vocal fold palsy: colloid nodular goiter (n=76; palsy n=13), thyroiditis (n=8; palsy n=0), and carcinoma (n=67; palsy n=21). CONCLUSION: Vocal symptoms, reported by 27.8% of the patients on the 1st post decreased to 7% in 6 months. In the acoustic analysis, f0 and APQ were decreased. Transient paralysis of the vocal folds secondary to recurrent and superior laryngeal nerve injury occurred in, respectively, 21% and 1.3% of the patients, decreasing to 6.6% and 0% after 6 months. PMID- 29030128 TI - EXPANSION of diabetes education in a United States-Mexico border community (Expanding Services for Patients to Acquire New Skills, Set Goals, and Improve Overall Knowledge). AB - OBJECTIVES: To describe the process used by a pharmacy team at a community health center to coordinate and expand diabetes education services (English and Spanish) for a predominantly Hispanic, Spanish-speaking population. SETTING: The project was implemented at 2 clinics in a federally qualified community health center system based in a low-income southwest U.S.-Mexico border community. PRACTICE INNOVATION: This project enhanced accessibility to diabetes education to improve knowledge, skills, and goal setting through existing pharmacy services at the primary clinic and 1 rural satellite clinic. EVALUATION: The success of the project was evaluated quantitatively. Metrics used to evaluate enhancement of existing practices included enrollment and completion rates, number of sessions, and diabetes leadership meetings. RESULTS: Over the 5-month project period assessed, 7 interdisciplinary professionals were certified as Diabetes Empowerment Education Program educators. Four sessions were conducted at both clinics. A total of 31 participants completed the diabetes classes. An educational attainment of 8th grade or less was reported in 91% of the rural participants compared with 50% of the urban participants. Ten interdisciplinary leadership meetings centered on recruitment, progress toward goals, and action items to ensure quality of classes. A nurse practitioner and pharmacist piloted a shared-visit model with 5 patients during a 45-minute time period. CONCLUSION: Successful diabetes education services occurred by implementing an evidence-based curriculum, identifying provider champions, increasing patient enrollment through provider referrals, and generating reports. Patient accountability was facilitated by setting patient-centered goals for knowledge and skills. Last, support groups provided ongoing support once patients graduated from a structured diabetes program. PMID- 29030130 TI - Behavioural and objective vestibular assessment in persons with osteoporosis and osteopenia: a preliminary investigation. AB - INTRODUCTION: Calcium is vital for the functioning of the inner ear hair cells as well as for the neurotransmitter release that triggers the generation of a nerve impulse. A reduction in calcium level could therefore impair the peripheric vestibular functioning. However, the outcome of balance assessment has rarely been explored in cases with osteopenia and osteoporosis, the medical conditions associated with reduction in calcium levels. OBJECTIVE: The present study aimed to investigate the impact of osteopenia and osteoporosis on the outcomes of behavioural and objective vestibular assessment tests. METHODS: The study included 12 individuals each in the healthy control group and osteopenia group, and 11 individuals were included in the osteoporosis group. The groups were divided based on the findings of bone mineral density. All the participants underwent behavioural tests (Fukuda stepping, tandem gait and subjective visual vertical) and objective assessment using cervical and ocular vestibular evoked myogenic potentials. RESULTS: A significantly higher proportion of the individuals in the two clinical groups' demonstrated abnormal results on the behavioural balance assessment tests (p<0.05) than the control group. However, there was no significant difference in latencies or amplitude of cervical vestibular evoked myogenic potential and oVEMP between the groups. The proportion of individuals with absence of ocular vestibular evoked myogenic potential was significantly higher in the osteoporosis group than the other two groups (p<0.05). CONCLUSION: The findings of the present study confirm the presence of balance-related deficits in individuals with osteopenia and osteoporosis. Hence the clinical evaluations should include balance assessment as a mandatory aspect of the overall audiological assessment of individuals with osteopenia and osteoporosis. PMID- 29030131 TI - Effects of diabetes mellitus and systemic arterial hypertension on elderly patients' hearing. AB - INTRODUCTION: Chronic diseases can act as an accelerating factor in the auditory system degeneration. Studies on the association between presbycusis and diabetes mellitus and systemic arterial hypertension have shown controversial conclusions. OBJECTIVE: To compare the initial audiometry (A1) with a subsequent audiometry (A2) performed after a 3 to 4-year interval in a population of elderly patients with diabetes mellitus and/or systemic arterial hypertension, to verify whether hearing loss in these groups is more accelerated when compared to controls without these clinical conditions. METHODS: 100 elderly individuals participated in this study. For the auditory threshold assessment, a previous complete audiological evaluation (A1) and a new audiological evaluation (A2) performed 3-4 years after the first one was utilized. The participants were divided into four groups: 20 individuals in the diabetes mellitus group, 20 individuals in the systemic arterial hypertension group, 20 individuals in the diabetes mellitus/systemic arterial hypertension group and 40 individuals in the control group, matching them with each study group, according to age and gender. ANOVA and Kruskal-Wallis statistical tests were used, with a significance level set at 0.05. RESULTS: When comparing the mean annual increase in the auditory thresholds of the A1 with the A2 assessment, considering each study group and its respective control, it can be observed that there was no statistically significant difference for any of the frequencies for the diabetes mellitus group; for the systemic arterial hypertension group, significant differences were observed after 4kHz. For the diabetes mellitus and systemic arterial hypertension group, significant differences were observed at the frequencies of 500, 2kHz, 3kHz and 8kHz. CONCLUSION: It was observed that the systemic arterial hypertension group showed the greatest decrease in auditory thresholds in the studied segment when compared to the other groups, suggesting that among the three studied conditions, hypertension seems to have the greatest influence on hearing. PMID- 29030132 TI - Improved strategies for electrochemical 1,4-NAD(P)H2 regeneration: A new era of bioreactors for industrial biocatalysis. AB - Industrial enzymatic reactions requiring 1,4-NAD(P)H2 to perform redox transformations often require convoluted coupled enzyme regeneration systems to regenerate 1,4-NAD(P)H2 from NAD(P) and recycle the cofactor for as many turnovers as possible. Renewed interest in recycling the cofactor via electrochemical means is motivated by the low cost of performing electrochemical reactions, easy monitoring of the reaction progress, and straightforward product recovery. However, electrochemical cofactor regeneration methods invariably produce adventitious reduced cofactor side products which result in unproductive loss of input NAD(P). We review various literature strategies for mitigating adventitious product formation by electrochemical cofactor regeneration systems, and offer insight as to how a successful electrochemical bioreactor system could be constructed to engineer efficient 1,4-NAD(P)H2-dependent enzyme reactions of interest to the industrial biocatalysis community. PMID- 29030133 TI - Use of a national database as a tool to identify primary medication non adherence: The Estonian ePrescription system. AB - BACKGROUND: Medication adherence can be divided into primary and secondary adherence. Primary medication non-adherence (PMN) occurs when a patient does not obtain medicine with their initial prescription. Secondary non-adherence measures prescription refills among patients who previously filled their first prescription. While secondary non-adherence has been studied thoroughly, PMN has been assessed less extensively, due to lack of available data. Estonian ePrescription system might prove a valuable tool for this. OBJECTIVES: The aim of this study was to evaluate PMN and the interval between prescribing and dispensing of medicines using the Estonian ePrescriptions database to establish its potential use for this purpose and for other qualitative drug utilization research measures. Osteoporosis medicines were used as an example. METHODS: The Estonian Prescription Centre was used to evaluate if patients purchase medicines after initial prescription of osteoporosis medicine. Prescriptions from 2012 to 2015 of all patients over 18 were included. PMN was defined as the first prescription not being dispensed before it expired (60 days). The rate of PMN was calculated. RESULTS: Estonian ePrescription System enabled fast evaluation of PMN of osteoporosis patients based on data about prescribing, dispensing and time intervals in-between. Of patients who started osteoporosis treatment 13.1% were primary non-adherent. Of primary non-adherent patients 42% still started treatment at some point during the study. Of patients who did purchase their first prescription 80.4% did so within a week and 95% within 25 days. CONCLUSION: The Estonian ePrescription system is a useful tool for monitoring PMN. The PMN of osteoporosis medicines was identified as lower than previously reported. More similar type of studies about other groups of medicines would be needed to understand the pattern of PMN and give valuable information to healthcare specialists about how to increase initiation of treatment. PMID- 29030134 TI - A1AT polymorphisms may be associated with clinical characteristics of retrovirus infections in a mixed ethnic population from the Brazilian Amazon region. AB - OBJECTIVES: This study investigated the association of alpha-1-antrypsin deficiency (A1AT; S and Z polymorphisms) with HIV-1 and HTLV-1 infection. METHODS: Blood samples from 201 HIV-1-infected and 115 HTLV-1-infected individuals were examined and compared with those from 300 healthy controls. Genotyping of A1AT (S and Z) and quantification of plasma viral load were performed using RT-PCR, and the CD4+/CD8+ T-cell count was determined by flow cytometry. RESULTS: The wild-type MM genotype showed the highest frequency in each of the three groups investigated. SS and ZZ homozygous genotypes (variants) were observed only among HTLV-1 patients and controls, respectively. Genotype MS was significantly less frequent in HTLV-1-positive persons than in controls. Statistically significant differences were observed when comparing genotype frequencies between symptomatic and asymptomatic HTLV-1-infected persons. The distribution of plasma HIV-1 viral load among individuals with different genotypes of A1AT polymorphism also differed significantly. CONCLUSIONS: The results suggest that A1AT polymorphisms may be associated with human retrovirus infections when dealing with an ethnically mixed population from the Amazon region of Brazil. PMID- 29030135 TI - Staphylococcus saprophyticus: Which beta-lactam? AB - BACKGROUND: Staphylococcus saprophyticus is resistant to the drugs most often used for the empirical treatment of urinary tract infections (UTI). The adequacy of antimicrobial treatments prescribed for UTI due to S. saprophyticus is not usually questioned. This study described the epidemiology of such infections and assessed the susceptibility of S. saprophyticus to ceftriaxone and amoxicillin clavulanic acid. METHODS: Methicillin-susceptible S. saprophyticus (MSSS) isolated from clinical samples between November 2014 and July 2016 were included. Clinical data were recorded. The minimum inhibitory concentrations (MICs) of amoxicillin-clavulanic acid and ceftriaxone were measured for these MSSS strains and for 17 randomly selected methicillin-susceptible Staphylococcus aureus (MSSA) strains. RESULTS: Of the S. saprophyticus isolates from urine, 59.5% were associated with a diagnosis of cystitis and 33.3% with pyelonephritis. Sixty percent of S. saprophyticus cystitis cases and 25% of pyelonephritis cases were given an inappropriate antibiotic regimen. The MICs of ceftriaxone ranged from 4 to >32MUg/ml for MSSS, and from 1.5 to 4MUg/ml for MSSA. CONCLUSIONS: Many UTIs were treated with an empirical antibiotic therapy that was ineffective for S. saprophyticus, revealing that S. saprophyticus is an aetiology that is insufficiently considered in UTI. High MICs for ceftriaxone in MSSS were observed, which raises questions about the use of this antibiotic in UTIs due to S. saprophyticus. PMID- 29030136 TI - Implementation of a sentinel surveillance system for influenza-like illness (ILI) and severe acute respiratory infection (SARI) in the country of Georgia, 2015 2016. AB - OBJECTIVES: Due to reports of substandard influenza preparedness, the country of Georgia developed two influenza surveillance systems. This paper describes these surveillance systems in their capacity to detect influenza. METHODS: Two surveillance systems for influenza operate in Georgia: an influenza-like illness (ILI) sentinel surveillance system for out-patient cases, based in the capital, Tbilisi, and a severe acute respiratory infection (SARI) sentinel surveillance system for in-patient cases with five sentinel sites - one in Tbilisi, and four in Kutaisi. Patients in these surveillance systems provide samples for laboratory testing, including influenza confirmation. RESULTS: From 2015-2016, 825 cases were surveilled in the ILI surveillance system and 1367 cases were surveilled in the SARI surveillance system, with 222 (26.9%) and 451 (33.0%) positive for influenza, respectively. Influenza positivity varied by age with adults 30-64 years having highest proportion of influenza-positive cases at 42.2%. CONCLUSIONS: The sensitivity of the surveillance systems to influenza was relatively high compared to neighboring countries. These findings show the importance of influenza surveillance in the country of Georgia. PMID- 29030137 TI - Video Directly Observed Therapy to support adherence with treatment for tuberculosis in Vietnam: A prospective cohort study. AB - BACKGROUND: Ensuring patients fully adhere to their treatment is a major challenge for TB control programmes in resource-limited settings. This study was conducted three outpatient tuberculosis clinics in Hanoi, Vietnam. We aimed to evaluate the feasibility of using asynchronous Video Directly Observed Therapy (VDOT) to support treatment adherence among patients with bacteriologically confirmed pulmonary tuberculosis. METHODS: In this cohort study, consecutive adult patients with bacteriologically confirmed pulmonary TB were invited to enroll in a programme of VDOT. Patients were trained to use a smartphone to record themselves taking treatment for TB. Videos were uploaded to an online server and reviewed daily by study staff for at least two months. Adherence was evaluated based upon monthly pill count. RESULTS: Between November 2016 and January 2017, 40 of 78 eligible participants (51.3%) agreed to commence VDOT. Among participating patients, 27 (71.1%) of patients took all required doses. A median of 88.4% (interquartile range 75.8%-93.7%) of doses were correctly recorded and uploaded. Participants rated the VDOT interface highly, despite facing some initial technical difficulties. CONCLUSION: VDOT was feasible and resulted in high rates of treatment adherence in a resource-limited setting. PMID- 29030138 TI - Peculiar purulence: Hypervirulent Klebsiella pneumoniae causing pyomyositis. AB - This report describes the first confirmed case of isolated pyomyositis caused by a hypervirulent strain of Klebsiella pneumoniae. Pyomyositis is almost universally caused by gram-positive organisms and while the recent emergence of invasive disease due to hypervirulent K. pneumoniae has been well documented, the most common clinical manifestation reported is liver abscess. The K. pneumoniae isolate in our case had a hypermucousviscous phenotype as demonstrated by a positive string test and was confirmed to be hypervirulent with molecular testing. Documenting the extrahepatic manifestations of hypervirulent Klebsiella pneumoniae strains is important to increase clinical awareness and in guiding empiric antibiotic regimens. PMID- 29030139 TI - Reply to letter to the Editor: "Possible intermediary role of autophagy in serum albumin decrease-associated cardiovascular events among patients with coronary heart disease". PMID- 29030140 TI - Cangrelor compared with clopidogrel in patients with prior myocardial infarction Insights from the CHAMPION trials. AB - BACKGROUND: Patients who have had a prior myocardial infarction (MI) are at increased risk for adverse outcomes after subsequent percutaneous coronary intervention (PCI). OBJECTIVE: The objective of this study is to examine the efficacy and safety of cangrelor, a potent intravenous P2Y12 inhibitor, in patients with prior MI. METHODS: Pooled data from the CHAMPION trials were examined. Prior MI was defined as a history of MI, excluding MI events at baseline. The primary endpoint was a composite of death, MI, ischemia-driven revascularization, or stent thrombosis at 48-h post-randomization. The primary safety endpoint was GUSTO-defined severe bleeding at 48h. RESULTS: Out of 24,691 patients, 5699 (23%) had a prior MI. The primary endpoint was higher in patients with vs. without prior MI (4.9% vs. 4.0%, p=0.002). The primary endpoint was 4.2% with cangrelor vs. 5.7% with clopidogrel (absolute risk reduction=1.5%; OR 0.72 [95%CI 0.57-0.92]) in patients with prior MI and 3.7% with cangrelor vs. 4.3% with clopidogrel (absolute risk reduction=0.6%; OR 0.85 [95%CI 0.74-0.99]) in patients without prior MI (P-interaction=0.25). The rate of GUSTO-defined severe bleeding was 0.1% with cangrelor vs. 0.1% with clopidogrel (OR 1.39 [95%CI 0.31 6.24]) in patients with prior MI, and 0.2% with cangrelor vs. 0.2% with clopidogrel (OR 1.18 [95%CI 0.65-2.14]) in patients without prior MI (P interaction=0.84). CONCLUSION: In the CHAMPION trials, patients with prior MI had higher rates of ischemic outcomes within 48h after PCI. Cangrelor reduced ischemic events with no significant increase in GUSTO-defined severe bleeding in patients with or without prior MI. PMID- 29030141 TI - Feasibility and usefulness of three-dimensional optical coherence tomography guidance for optimal side branch treatment in coronary bifurcation stenting. AB - BACKGROUND: For the treatment of coronary bifurcation lesions, optimal guidewire (GW) recrossing after main vessel stenting is important for good stent apposition at the side branch (SB) orifice in kissing balloon inflation (KBI). METHODS: We analyzed 150 bifurcation lesions treated with single stenting following KBI in the three-dimensional optical coherence tomography (3D-OCT) bifurcation registry study (2015-16) and a single center experience (2012-16). OCT examination was performed after GW recrossing to the SB and after KBI. Patients were divided into two-dimensional (2D, n=78) and 3D groups (n=72) according to 2D- or 3D-OCT guidance. GW recrossing position, jailing configuration of the stent over the SB (divided into Link-connecting type: stent link connecting to the carina and Link free type: no stent link at the carina) and stent apposition were compared between the groups. RESULTS: Distal GW recrossing was achieved in 75.6% and 91.7% in the 2D and 3D groups, respectively (P=0.004). Compared with the 2D group, the incidence of incomplete stent apposition (ISA) toward the SB in the 3D group tended to be lower in the whole cohort (14.5+/-13.6% vs 10.0+/-9.0%, P=0.077), and was significantly lower in left main trunk bifurcations (18.7+/-12.8% vs 10.3+/-8.9%, P=0.014). Independent contributors to ISA were the Link-connecting type (beta 0.089, P<0.001), distal GW recrossing (beta -0.078, P=0.001), and age (beta -0.0020, P=0.012). CONCLUSION: Optimal GW recrossing under 3D-OCT guidance is feasible and improves stent apposition, which may lead to a better clinical outcome in the treatment of bifurcation lesions. PMID- 29030142 TI - Possible intermediary role of autophagy in serum albumin decrease-associated cardiovascular events among patients with coronary heart disease. PMID- 29030143 TI - Impact of atrial fibrillation on outcomes with motor vehicle accidents. AB - BACKGROUND: We examined the effect of AF a commonly encountered arrhythmia with significant morbidity on mortality following a motor vehicle accident (MVA) related hospitalization. METHODS: The Nationwide Inpatient Sample (NIS) was queried to identify patients with AF (ICD-9 CM 427.31) and MVA (ICD-9 CM E810.0 E819.9), considered separately and together, from 2003 through 2012. Baseline characteristics were identified and multilevel mixed model multivariate analysis was employed to verify the impact of AF on in-patient mortality in survivors. RESULTS: Of an estimated 2,978,630 MVA admissions reported, 79,687 (2.6%) hospitalizations also had a diagnosis of AF. The in-hospital mortality was 2.6% in MVA alone and 7.6% in MVA and AF. In multivariate analysis, after adjustment for age, gender, Charlson Comorbidity Index (CCI), the Trauma Mortality Prediction Model (TMPM), and hospital characteristics, AF was independently associated with in-hospital mortality [Odds ratio (OR) 1.52, confidence interval (CI) 1.41-1.69, P value<0.0001]. In patients with MVA and AF, increasing age, CCI, and TMPM were associated with higher mortality. Female gender is associated with lower mortality (OR 0.84, CI 0.81-0.88, P -0.0016). Most patients with MVA and AF had a CHADS2 score of 2 (34.6%). Mortality and transfusion rates were higher in MVA and AF patients compared to patients with MVA alone across all CHADS2 scores. CONCLUSION: In patients with a MVA, the presence of AF is an independent risk factor for in-hospital mortality. PMID- 29030145 TI - Introduction to the special section: Spinal Cord a model to understand CNS development and regeneration. PMID- 29030144 TI - Regulation of the membrane structure by brassinosteroids and progesterone in winter wheat seedlings exposed to low temperature. AB - Steroids constitute one of the most important groups of compounds of regulatory properties both in the animal and plant kingdom. In plants, steroids such as brassinosteroids or progesterone, by binding to protein receptors in cell membranes, regulate growth and initiate processes leading to increased tolerance to stress conditions. Due to their structural similarities to sterols, these steroids may also directly interact with cellular membranes. Our aim was to determine the changes of the structural parameters of lipid membranes under the influence of hydrophobic steroid compounds, i.e., 24-epibrassinolide (EBR) and its precursor-24-epicastasterone (ECS) and progesterone (PRO). Lipids were isolated from wheat seedlings with different tolerances to frost, grown at low temperatures (5 degrees C) for 1.5 and 3 weeks (acclimation process). Control plants were cultured continuously at 20 degrees C. From galactolipids and phospholipids, the main polar lipid fractions, the monolayers were formed, using a technique of Langmuir trough. EBR and ECS were introduced into monolayers, together with lipids, whereas the PRO was dissolved in the aqueous sub-phase upon which the monolayers were spread. Measurements performed at 25 degrees C and 10 degrees C showed a significant action of the tested compounds on the physicochemical properties of the monolayers. EBR and PRO increased the area per lipid molecule in monolayers, resulting in formation of more flexible surface structures while the presence of the ECS induced the opposite effect. The influence of the polarity of lipids and steroids on the interactions in the monolayer was discussed. Lipids extracted from the membranes of wheat with the most tolerance to frost were characterized by the highest fatty acid unsaturation and steroids had a relatively weak effect on the parameters of the structure of their monolayers. PMID- 29030146 TI - Salamander spinal cord regeneration: The ultimate positive control in vertebrate spinal cord regeneration. AB - Repairing injured tissues / organs is one of the major challenges for the maintenance of proper organ function in adulthood. In mammals, the central nervous system including the spinal cord, once established during embryonic development, has very limited capacity to regenerate. In contrast, salamanders such as axolotls can fully regenerate the injured spinal cord, making this a very powerful vertebrate model system for studying this process. Here we discuss the cellular and molecular requirements for spinal cord regeneration in the axolotl. The recent development of tools to test molecular function, including CRISPR mediated gene editing, has lead to the identification of key players involved in the cell response to injury that ultimately leads to outgrowth of neural stem cells that are competent to replay the process of spinal cord development to replace the damaged/missing tissue. PMID- 29030147 TI - [Report from the CFEF seminar on fetal biometry (June 2017)]. AB - This article reports the conclusions and recommendations resulting from the seminar organized in Paris on June 15, 2017 by the scientific committee of the French College of Fetal Ultrasound (CFEF). The purpose of this meeting was to audit the practices in screening for SGA and IUGR fetuses in France and to discuss ways to improve ultrasound screening. A review of charts, references, standards and common practices was performed. The potential new biometric tools applicable in France were reviewed and analyzed. Eventually, options and recommendations for improvement are proposed. PMID- 29030148 TI - [Robot-assisted laparoscopic radical trachelectomy for early stage cervical cancer (with video)]. PMID- 29030149 TI - Clinical management of women presenting with field effect of HPV and intraepithelial disease. AB - Anogenital human papillomavirus is the most common sexually transmitted infection acquired through skin-to-skin contact. Most infections are cleared by an intact immune system. Persistence of these infections results in precancerous lesions and, eventually, to cancers of the cervix, vagina, vulva, and perianal area. The introduction of the prophylactic human papilloma virus (HPV) vaccinations may reduce the incidence of these infections, but the effect of these vaccinations will be seen only in the decades that follow. In the meantime, multiple therapies such as immune modulators, ablative modalities, and surgical excision are used in an attempt to treat precancerous lesions and hence prevent cancer. There is an increase in multicentric disease in young women, especially with the HIV epidemic and in women who are immune compromised. This article aims to address the challenges and management options in women who have a field effect of HPV associated disease. PMID- 29030150 TI - Sociodemographic, socioeconomic, and clinical determinants of survival in patients with cancer: A systematic review of the literature focused on the elderly. AB - Studies on cancer survival have revealed disparities not only between the elderly and their younger counterparts, but also among the elderly themselves. The aim of this work was to identify sociodemographic, socioeconomic, clinical, and care related determinants of survival or mortality in older patients with cancer by a systematic synthesis of the literature. Understanding these factors is of great value for guiding health policies and programs aimed at reducing cancer survival disparities. We conducted a search of MEDLINE and SCOPUS databases under PRISMA guidelines. Results were limited to articles published in English and French from 2005 to 2015, and focused on elderly patients with cancer. The article selection was performed in a stepwise fashion: title, abstract, and full-text selection. Studied determinants and results of each article were synthesized. Forty-five articles were eligible and included in the study. We observed different ways of measuring socioeconomic status, comorbidities, and treatment among studies. Cancer-specific and overall survival were the main studied outcomes. Advanced age, low income, low socioeconomic status, presence of comorbidities, advanced stage, and poor tumor grade were found to be associated with lower survival or higher mortality. On the other hand, female gender and being married were predictive of increased survival or lower mortality. The next logical step is to carry out studies on elderly patients from different countries and to incorporate pertinent factors in a unique model. Moreover, specific geriatric health impairments should be taken into account in further research because of their association with survival. PMID- 29030151 TI - Optimizing bicoid signal extraction. AB - Signal extraction and analysis is of great importance, not only in fields such as economics and meteorology, but also in genetics and even biomedicine. There exists a range of parametric and nonparametric techniques which can perform signal extractions. However, the aim of this paper is to define a new approach for optimising signal extraction from bicoid gene expression profile. Having studied both parametric and nonparametric signal extraction techniques, we identified the lack of specific criteria enabling users to select the optimal signal extraction parameters. Exploiting the expression profile of bicoid gene, which is a maternal segmentation coordinate gene found in Drosophila melanogaster, we introduce a new approach for optimising the signal extraction using a nonparametric technique. The underlying criteria are based on the distribution of the residual, more specifically its skewness. PMID- 29030152 TI - Identification of microbiota dynamics using robust parameter estimation methods. AB - The compositions of in-host microbial communities (microbiota) play a significant role in host health, and a better understanding of the microbiota's role in a host's transition from health to disease or vice versa could lead to novel medical treatments. One of the first steps toward this understanding is modeling interaction dynamics of the microbiota, which can be exceedingly challenging given the complexity of the dynamics and difficulties in collecting sufficient data. Methods such as principal differential analysis, dynamic flux estimation, and others have been developed to overcome these challenges. Despite their advantages, these methods are still vastly underutilized in fields such as mathematical biology, and one potential reason for this is their sophisticated implementation. While this paper focuses on applying principal differential analysis to microbiota data, we also provide comprehensive details regarding the derivation and numerics of this method and include a functional implementation for readers' benefit. For further validation of these methods, we demonstrate the feasibility of principal differential analysis using simulation studies and then apply the method to intestinal and vaginal microbiota data. In working with these data, we capture experimentally confirmed dynamics while also revealing potential new insights into the system dynamics. PMID- 29030154 TI - Simultaneous profiles of sulfonated androgens, sulfonated estrogens and sulfonated progestogens in postpubertal boars (sus scrofa domestica) measured by LC-MS/MS. AB - Sulfonated steroids (s-St) have been usually regarded as inactive metabolites but are progressively considered as precursors for the intra-tissue formation of bioactive steroids. Moreover, independent effects without preceding removal of the sulfate group have been observed. We use the porcine testicular-epididymal compartment as a model to investigate the still largely unknown s-St physiology as the boar exhibits an intriguingly broad s-St spectrum predominantly originating from the testis. The application of LC-MS/MS in steroidomics enables the determination of unconjugated and intact sulfonated steroids with currently highest specificity and good sensitivity, allowing the concurrent measuring of numerous analytes in larger quantities of samples. Profiles (6h, 20min intervals) were generated for sulfonated 5-androstene-3beta,17beta-diol (Adiol-S), androsterone (A-S), dehydroepiandrosterone (DHEA-S), epiandrosterone (EA-S), epitestosterone (ET-S), estrone (E1-S), estradiol-17beta (E2-S), pregnenolone (P5 S), 17alphaOH-pregnenolone (OHP5-S) and unconjugated testosterone (T) in four unstimulated and four hCG-stimulated boars. Moreover, concentrations were measured in individual samples collected from testicular afferent and efferent blood to differentiate between testicular vs. extratesticular origin. Highest concentrations were found for EA-S, followed by ET-S, Adiol-S and DHEA-S, which mostly exceeded the levels of E1-S and A-S. Lowest concentrations were obtained for E2-S, P5-S and OHP5-S. The analytical profile also included sulfonated T, 5alpha-dihydrotestosterone and cholesterol. However, their concentrations were below the limit of quantification. Profiles of quantifiable s-St were consistent with a wave-like pattern associated with T pulses. In postpartal females (n=5) concentrations of all analytes assessed were undetectable, suggesting that in pigs the adrenals are not a quantitatively significant source of s-St. PMID- 29030153 TI - Potassium homeostasis in health and disease: A scientific workshop cosponsored by the National Kidney Foundation and the American Society of Hypertension. AB - While much emphasis, and some controversy, centers on recommendations for sodium intake, there has been considerably less interest in recommendations for dietary potassium intake, in both the general population and patients with medical conditions, particularly acute and chronic kidney disease. Physiology literature and cohort studies have noted that the relative balance in sodium and potassium intakes is an important determinant of many of the sodium-related outcomes. A noteworthy characteristic of potassium in clinical medicine is the extreme concern shared by many practitioners when confronted by a patient with hyperkalemia. Fear of this often asymptomatic finding limits enthusiasm for recommending potassium intake and often limits the use of renin-angiotensin aldosterone system blockers in patients with heart failure and chronic kidney diseases. New agents for managing hyperkalemia may alter the long-term management of heart failure and the hypertension, proteinuria, and further function loss in chronic kidney diseases. In this jointly sponsored effort between the American Society of Hypertension and the National Kidney Foundation, 3 panels of researchers and practitioners from various disciplines discussed and summarized current understanding of the role of potassium in health and disease, focusing on cardiovascular, nutritional, and kidney considerations associated with both hypo- and hyperkalemia. PMID- 29030155 TI - High glucose impaired estrogen receptor alpha signaling via beta-catenin in osteoblastic MC3T3-E1. AB - Diabetic Mellitus is a risk factor for osteoporosis. It has been suggested that altered estrogen or estrogen receptor alpha/beta (ERalpha/beta) signaling may be involved in diabetic osteoporosis. The present study is to investigate the effects of high glucose on ERalpha/beta signaling in osteoblastic MC3T3-E1 and how the altered signaling of ERalpha/beta affect osteoblastic bone formation. ERalpha/beta signaling was demonstrated as ERalpha/beta protein expression (Western Blotting) and ER transcription activity (Luciferase Reporter assays). Proliferation (WSK-1 assaying), differentiation (ALP staining) and mineralization (Alizalard Red staining) of MC3T3-E1 were examined to evaluate bone formation function. It has been found that high glucose increased ERalpha/beta expression dose-dependently and time-dependently, but high glucose (33mM) decreased ERalpha transcription activity. 17beta-estradiol increased the ERalpha/beta expression dose-dependently in normal medium, but decreased the ERalpha/beta expression dose dependently in medium with high glucose (33mM). High glucose decreased bone formation and also decreased the osteogenic effects of 17beta-estradiol (10-8M). High glucose decreased beta-catenin expression dose-dependently and time dependently. LiCl, an inhibitor of beta-catenin degradation, decreased ERalpha expression but increased ERalpha transcription activity. When compared with high glucose treatment, LiCl (5mM) increased ALP activity and calcified nodes. Besides, high glucose also decreased the protein expression PI-3K, pAKT/AKT, GSK 3beta. In conclusion, the present study suggested that high glucose may impair ERalpha transcription activity by inhibiting beta-catenin signaling in osteoblastic MC3T3-E1, leading decreased bone formation ligand-dependently or ligand-independently. PMID- 29030156 TI - Applicability of an innovative steroid-profiling method to determine synthetic growth promoter abuse in cattle. AB - A robust LC-MS/MS method was developed to quantify a large number of phase I and phase II steroids in urine. The decision limit is for most compounds lower than 1ngml-1 with a measurement uncertainty smaller than 30%. The method is fully validated and was applied to assess the influence of administered synthetic steroids and beta-agonists on the steroidogenesis. From three animal experiments, clenbuterol, diethylstilbestrol and stanozolol, the steroid profiles in urine of bovine animals were compared before and after treatment. It was demonstrated that the steroid profiles were altered due to these treatments. A predictive multivariate model was built to identify deviations from normal population steroid profiles. The abuse of synthetic steroids can be detected in urine samples from bovine animals using this model. The samples from the animal experiments were randomly analysed using this method and predictive model. It was shown that these samples were predicted correctly in the exogenous steroids group. PMID- 29030157 TI - Bits and Pieces: A Crowd-Sourced Series of 54 Cases of Fractured Hormonal Implants. AB - STUDY OBJECTIVE: The fracture of hormonal implants, including Implanon, Nexplanon (both from Merck & Co, Inc), and histrelin acetate is rare. Our aim was to describe patient demographic characteristics, mechanisms, and consequences of fractured implants by surveying physicians' experience via listservs and social media. DESIGN, SETTING, PARTICIPANTS, INTERVENTIONS, AND MAIN OUTCOME MEASURES: We developed a Research Electronic Data Capture survey for physicians regarding their experience with implant fracture, including patient characteristics, mechanism of fracture, changes in menstrual bleeding patterns, time from insertion to fracture, and time from fracture to seeking care. We distributed the survey to providers in listservs for the North American Society for Pediatric and Adolescent Gynecology, the Family Planning Fellowship, the Ryan Program, and the Facebook Physician Moms Group and Facebook OB-GYN Mom Group. We performed descriptive analyses. RESULTS: We received 42 survey responses, representing 54 discrete implant fractures of which 70% (n=14) were Nexplanon, 26% (n=38) were Implanon, and 4% (n=2) were histrelin acetate. Mechanisms of implant fracture included patient manipulation (23%, n=12), unintentional trauma (11%, n=6), interpersonal violence (8%, n=4), lifting/carrying (6%, n=3), fracture with removal (6%, n=3), and unknown (47%, n=25). Bleeding pattern was not altered in 78% (n=42) of cases. Time interval between placement and fracture was less than 2 years for 63% (n=34) of cases. Thirty-nine percent (n=21) of patients presented for care more than 1 month from the time of fracture. CONCLUSION: Patients should be counseled about potential for hormonal implant fracture, advised against excessive manipulation of implants, and counseled to present for care immediately upon noticing an implant fracture. Surveying physicians through listervs and social media is an effective strategy to increase the reporting of rare complications and events. PMID- 29030158 TI - Surgical Treatment of Adolescent Breast Disorders: Institutional Experience and National Trends. AB - STUDY OBJECTIVE: Adolescent breast disorders are rare and typically benign in nature; however, surgical treatments might require multiple surgeries. Because of the limited existing data, we sought to evaluate national trends and describe our institutional experience to help guide patient conversations. DESIGN: Retrospective review. SETTING: National database and academic institution. PARTICIPANTS: Patients 20 years old or younger who underwent a breast procedure in the Kids' Inpatient Database from January 2000 to December 2012 and at Mayo Clinic-Rochester from January 2000 to July 2016. Conditions were categorized into common and complex breast disorders. INTERVENTIONS: None. MAIN OUTCOME MEASURES: To assess any trend of adolescent breast procedures across the United States as a whole, weighted Kids' Inpatient Database data were assessed using a Rao-Scott chi2 test. Within the institutional data, the average number of procedures needed to correct common vs complex breast disorders were compared using an unequal variance t test. RESULTS: In recent years, the estimated number of hospitalizations for breast procedures decreased in the United States from 1661 in 2000 to 1078 in 2012 (P < .001). At our institution, 241 patients underwent a breast procedure (75.1% [181/241] female) over 16 years. Common breast disorders were corrected with fewer procedures than complex breast disorders (mean 1.09 vs 2.22 procedures; P = .0003). CONCLUSION: Inpatient treatment of adolescent breast disorders has been decreasing in recent years, likely reflecting a trend to outpatient procedures. Common adolescent breast disorders might be surgically corrected with 1 procedure, whereas complex disorders often require multiple surgeries to correct. It is important to discuss this with patients and their families to adequately set up expectations. PMID- 29030159 TI - Obstructive Mullerian Anomalies in Menstruating Adolescent Girls: A Report of 22 Cases. AB - STUDY OBJECTIVE: To assess the clinical course of obstructive Mullerian anomalies found in girls after menarche. DESIGN: A retrospective case series of adolescents who, between 2009 and 2016, were treated for vaginal or uterine obstructive malformations diagnosed after menarche. SETTING: Division of Gynecology, Poznan University of Medical Sciences, Poznan, Poland. PARTICIPANTS AND INTERVENTIONS: Twenty-two patients who, at the age range between 11.4 and 18.2 (median, 13.1) years, between 2 and 74 (median 7.5) months after menarche, underwent surgical repair of obstructive genital anomaly. MAIN OUTCOME MEASURES: Mullerian defect type, presentation, radiologic findings, pre- and postoperative course. RESULTS: Eighteen patients (18 of 22; 81.8%) were diagnosed with obstructed hemivagina ipsilateral renal anomaly syndrome. One patient (1 of 22; 4.5%) was diagnosed with uterus didelphys and unilateral cervical atresia. Three patients (3 of 22; 13.6%) had unicornuate uterus with a cavitated, noncommunicating rudimentary horn. The right side was affected in 13 patients (13 of 22; 59.1%), and the left side in 9 patients (9 of 22; 40.9%; P > .05). All but 1 patient had renal agenesis on the side of obstruction. Before repair of the obstructive genital anomaly, 4 patients underwent unnecessary surgeries for misdiagnosed ovarian cysts. Serious complications (pelvic inflammatory disease, vesicovaginal fistula) occurred in 2 patients with microperforated pyocolpos. Pelvic endometriosis was found in 4 of our patients. CONCLUSION: Our case series suggests that obstructed hemivagina ipsilateral renal anomaly syndrome is the most common obstructive Mullerian anomaly diagnosed in adolescents after menarche. The differential diagnosis for unilateral kidney agenesis accompanied by dysmenorrhea in adolescent girls should include obstructive genital tract anomaly. Accurate diagnosis of an obstructive genital anomaly early after menarche might help prevent unnecessary surgeries and infection-related complications. Meanwhile, prompt surgical correction of an obstructive genital tract anomaly results in relief of symptoms and might reduce the risk of endometriosis. PMID- 29030160 TI - Mobile Application vs Paper Pictorial Blood Assessment Chart to Track Menses in Young Women: A Randomized Cross-over Design. AB - STUDY OBJECTIVE: Heavy menstrual bleeding is a common symptom reported by approximately 30% of women. The Pictorial Blood Assessment Chart (PBAC) score is often used to quantify severity of menstrual bleeding. However, the traditional PBAC paper diary might be subject to recall bias and compliance issues, especially in adolescents. We developed a mobile application (app) version of the PBAC score and evaluated patient satisfaction and compliance with app reporting vs paper reporting. DESIGN, SETTING, PARTICIPANTS, INTERVENTIONS, AND MAIN OUTCOME MEASURES: This study was a randomized cross-over study of 25 postmenarchal female adolescents and young women ages 13-21 years. Participants agreed to track bleeding in 2 consecutive menstrual cycles and were randomized to use the PBAC paper diary or mobile app format first. At the end of each cycle, a satisfaction survey and system usability scale (app only) was used to assess the acceptability of the format used. RESULTS: Twenty-five participants had a median age of 15 years. Cross-over analysis showed that satisfaction level was significantly higher for the app (P < .001). Twenty of 25 (80%) participants preferred the app over the paper diary. For the app, 20 of 25 participants (80%) had high compliance for reporting bleeding, with a mean of 2 app entries per day. Participants' PBAC scores did not vary significantly between the paper diary (median, 95) and mobile app (median, 114). All paper diaries met definition for high compliance. There was no significant period or carryover effect. CONCLUSION: This study showed that a PBAC app compared with the paper diary was the preferred method of recording menstrual bleeding in adolescents and showed feasibility as a research data collection tool. PMID- 29030161 TI - ASGE EndoVators Summit: Defining the role and value of endoscopic therapies in obesity management. PMID- 29030162 TI - Commentary on EndoVators summit white paper. PMID- 29030163 TI - Metabolites related to renal function, immune activation, and carbamylation are associated with muscle composition in older adults. AB - Reduced skeletal muscle density in older adults is associated with insulin resistance, decreased physical function, and an increased all-cause mortality risk. To elucidate mechanisms that may underlie the maintenance of skeletal muscle density, we conducted a secondary analysis of previously published muscle composition and serum metabolomic data in 73 older adults (average age, 78y). Multivariable-adjusted linear regression was used to examine associations between 321 metabolites with muscle composition, defined as the ratio between normal density (NDM) with low density (LDM) thigh muscle cross sectional area (NDM/LDM). Sixty metabolites were significantly (p<=0.05 and q<0.30) associated with NDM/LDM. Decreased renal function and the immune response have been previously linked with reduced muscle density, but the mechanisms underlying these connections are less clear. Metabolites that were significantly associated with muscle composition were then tested for their association with circulating markers of renal function (blood urea nitrogen, creatinine, uric acid), and with the immune response (neutrophils/lymphocytes) and activation (kynurenine/tryptophan). 43 significant NDM/LDM metabolites (including urea) were co-associated with at least 1 marker of renal function; 23 of these metabolites have been previously identified as uremic solutes. The neutrophil/lymphocyte ratio was significantly associated with NDM/LDM (beta+/-SE: -0.3+/-0.1, p=0.01, q=0.04). 35 significant NDM/LDM metabolites were co-associated with immune activation. Carbamylation (defined as homocitrulline/lysine) was identified as a pathway that may link renal function and immune activation with muscle composition, as 29 significant NDM/LDM metabolites were co-associated with homocitrulline/lysine, with at least 2 markers of renal function, and with kynurenine/tryptophan. When considering that elevated urea and uremic metabolites have been linked with an increased systemic microbial burden, that antimicrobial defense can be reduced in the presence of carbamylation, and that adipocytes can promote host defense, we propose the novel hypothesis that the age-related increase in adipogenesis within muscle may be a compensatory antimicrobial response to protect against an elevated microbial burden. PMID- 29030164 TI - Renal function as a cofactor for risk stratification and short-term outcome in acute pulmonary embolism. AB - BACKGROUND: In addition to right ventricular dysfunction (RVD) and myocardial injury, impaired renal function is connected with poorer prognosis in pulmonary embolism (PE). We aimed to investigate renal function as a cofactor for risk stratification in PE. METHODS: Data from 182 patients with PE, treated between May 2006 and June 2011, were analysed retrospectively. PE patients with elevated creatinine were compared with those with normal values. Logistic regression models were calculated to investigate associations between creatinine and myocardial necrosis, RVD and in-hospital death. Prognostic performance of creatinine for prediction of myocardial necrosis and RVD were computed. RESULTS: Overall, 182 patients (61.5% females,aged 68.5+/-15.3years) with confirmed PE were included in this study; 142 patients(78.0%) showed normal creatinine, and 40(22.0%) had an elevated creatinine. Patients with elevated creatinine were older (75.9+/-10.7 vs. 66.5+/-15.7years, P=0.0003), more frequently female (77.5% vs. 57.0%,P=0.019), and had higher cardiac troponin I (0.19+/-0.23 vs. 0.11+/ 0.29ng/ml,P=0.0004), systolic pulmonary artery pressure (43.18+/-16.69 vs. 30.83+/-17.53mmHG,P=0.0006) and percentage of RVD (77.1% vs. 54.1%,P=0.040). Creatinine was significantly and independently associated with myocardial necrosis (OR 10.192, 95%CI 2.850-36.452, P=0.0004), shock-index>=1.0 (OR 3.265, 95%CI 1.067-9.992, P=0.0381) and RVD (OR 5.172, 95%CI 1.387-19.295, P=0.014). Creatinine>1.25mg/dl indicated for myocardial necrosis (AUC 0.680) and RVD (AUC 0.663). CONCLUSIONS: Additionally, to RVD and myocardial necrosis, impaired renal function could give further information for risk stratification in PE. Cardio pulmonary-renal interactions in PE seem to be multi-factorial. PMID- 29030165 TI - Hippocampal mTOR signaling is required for the antidepressant effects of paroxetine. AB - Although thought as a selective serotonin reuptake inhibitor (SSRI), the antidepressant mechanisms of paroxetine remain unknown. Previous studies have shown the role of the mammalian target of rapamycin (mTOR) signaling in depression. In this study, we investigated whether the antidepressant effects of paroxetine require mTOR signaling. We first examined whether chronic paroxetine administration restores the effects of CUMS and CSDS on the mTOR signaling cascade in the hippocampus and prefrontal cortex. Then, the pharmacologcial inhibitors of mTOR signaling (LY294002, U0126 and rapamycin) were used to assay if the paroxetine-induced reversing effects in the CUMS and CSDS models were prevented by mTOR system blockade. Furthermore, gene knockdown of mTOR by mTOR shRNA was also used to test whether mTOR is necessary for the antidepressant effects of paroxetine. It was found that paroxetine treatment fully reversed the effects of CUMS and CSDS on the mTOR signaling in the hippocampus, but not the prefrontal cortex. Pharmacological inhibition of the mTOR signaling significantly blocked the antidepressant effects of paroxetine in the CUMS and CSDS models. Moreover, gene silencing of hippocampal mTOR by mTOR-shRNA also abolished the antidepressant effects of paroxetine. Taken together, hippocampal mTOR signaling is necessary for the antidepressant effects of paroxetine. PMID- 29030166 TI - MDPV and alpha-PVP use in humans: The twisted sisters. AB - The new psychoactive substances phenomenon continues to represent a considerable public health challenge. Synthetic cathinones are beta-keto amphetamine analogues, also known as legal highs, research chemicals, bath salts. These drugs have surfaced as a popular alternative to other illicit drugs of abuse, such as cocaine, MDMA, and methamphetamine, due to their potent psychostimulant and empathogenic effects. Pyrovalerone cathinones (a-pyrrolidinophenones) form a distinct group of designer cathinones, such as MDPV. After being listed as an illegal product, "second generation" compounds such as alpha-PVP, sharing a very similar chemical structure with MDPV, were developed. Clinical effects of these compounds are individual, dose- and route of administration-dependent. Both of them have been involved in an increased number of, not only acute intoxications but also fatalities over the past few years, raising concerns in the medical field. In this paper, we will review the available data regarding the use and effects of MDPV and alpha-PVP in humans in order to highlight their impact on public health. Health actors and general population need to be clearly informed of potential risks and consequences of these 2 novel psychoactive substances spread and use. The literature search conducted led to the identification of potentially 83 relevant articles. All articles were screened from their abstracts to determine their relevance in the framework of the current review. This article is part of the Special Issue entitled 'Designer Drugs and Legal Highs.' PMID- 29030167 TI - Turnaround time of whole genome sequencing for mycobacterial identification and drug susceptibility testing in routine practice. AB - OBJECTIVES: Until recently whole genome sequencing (WGS) for mycobacteria has been restricted mostly to the research setting. However, in 2017 Public Health England has implemented WGS for routine mycobacterial identification and susceptibility testing for Mycobacterium tuberculosis. Our objective was to evaluate the impact of this change on the laboratory turnaround times and availability of results. METHODS: Over the years 2016 and 2017, the period 1 January to 30 April was selected to represent before and after implementation of WGS. Prior to 2017, line probe assays were used for mycobacterial species identification. Turnaround times for the different steps of the diagnostic process were evaluated for all positive mycobacterial cultures that were sent from our hospital to the Reference Laboratory during the study period. RESULTS: A total of 161 positive mycobacterial cultures were sent to the Reference Laboratory. Half of the isolates (n=81/161, 50%) were M. tuberculosis and 80/161 (50%) were non-tuberculous mycobacteria. The median number of workdays for mycobacterial species identification was 1 day (interquartile range (IQR) 1-3) in 2016 and 6 days (IQR 5-7) in 2017, p <0.001. For M. tuberculosis complex, the median time to drug susceptibility testing results, either molecular or phenotypic, was 12 days (IQR 11-18) in 2016 and 8 days (IQR 7-10) in 2017, p <0.001. CONCLUSIONS: Routine WGS performed well in this setting for mycobacterial identification and susceptibility testing for M. tuberculosis and decreased time to drug susceptibility testing results. There was an increase in turnaround times for species identification using WGS, when compared with the previous methods. PMID- 29030168 TI - Shiga toxin-producing Escherichia coli: incidence and clinical features in a setting with complete screening of patients with suspected infective diarrhoea. AB - OBJECTIVES: Shiga toxin-producing Escherichia coli (STEC) causes diarrhoeal disease, bloody diarrhoea, and haemolytic uraemic syndrome. The aim of this study was to describe the incidence of STEC and the clinical features of STEC patients from a well-defined Danish population in which all fecal samples of patients with suspected infective gastroenteritis were analysed for STEC. METHODS: In this population-based cohort study, all stool samples referred to two clinical microbiology laboratories were screened for STEC by culture and/or PCR. Epidemiological (n=170) and clinical (n=209) characteristics were analysed using data from local and national registries. RESULTS: Overall, 75,132 samples from 30,073 patients were screened resulting in 217 unique STEC-isolates. The epidemiological analysis showed an incidence of 10.1 cases per 100,000 person years, which was more than twofold higher than the incidence in the rest of Denmark (3.4 cases per 100,000 person-years, p <0.001). Three groups were associated with a higher incidence: age <5 years (n=28, p <0.001), age >=65 years (n=38, p 0.045), and foreign ethnicity (n=27, p 0.003). In the clinical analysis, patients with STEC harbouring only the Shiga toxin 1 gene (stx1-only isolates) showed a lower frequency of acute (n=11, p <0.05) and bloody diarrhoea (n=5, p <0.05) and a higher frequency of gastrointestinal symptoms for >=3 months (n=8, p <0.05) than the other STEC patients. CONCLUSIONS: We report a more than twofold higher incidence in the project area compared with the rest of Denmark, indicating that patients remain undiagnosed when selective STEC screening is used. We found an association between patients with stx1-only isolates and long term gastrointestinal symptoms. PMID- 29030169 TI - Clinical predictors and prediction rules to estimate initial patient risk for infective endocarditis in Staphylococcus aureus bacteraemia: attention must be paid to the reference standard. PMID- 29030170 TI - In utero negativization of Zika virus in a foetus with serious central nervous system abnormalities. AB - We describe a case of a pregnant woman with Zika virus (ZIKV) infection and a foetus with severe brain malformations. ZIKV tested positive in amniotic fluid at 19 weeks but was negative at delivery. The newborn did not meet the case definition of congenital ZIKV syndrome because neither ZIKV RNA nor IgM antibodies were detected; however, prenatal brain lesions were confirmed after birth (Graphical Abstract). PMID- 29030171 TI - To test or not to test? Laboratory support for the diagnosis of Lyme borreliosis. PMID- 29030172 TI - Towards a structured examination of contextual flexibility in persistent pain. PMID- 29030173 TI - A novel miniature, wireless neurostimulator in the management of chronic craniofacial pain: Preliminary results from a prospective pilot study. AB - OBJECTIVE: To report a novel wireless neuromodulation system for treatment of refractory craniofacial pain. BACKGROUND: Previous studies utilizing peripheral nerve stimulation (PNS) of the occipital and trigeminal nerves reported positive outcomes for alleviating neuropathic pain localized to the craniofacial and occipital areas. However several technological limitations and cosmetic concerns inhibited a more widespread acceptance and use of neuromodulation. Also, a relatively high incidence of adverse events like electrode erosions, dislocation, wire fracture and/or infection at the surgical site mandates a change in our approach to neuromodulation technology and implant techniques in the craniofacial region. METHODS: We report a novel approach for the management of craniofacial pain with a wirelessly powered, minimally invasive PNS system. The system is percutaneously implanted and placed subcutaneously adjacent to affected facial nerves via visual guidance by the clinician. In this feasibility study, pilot evidence was gathered in a cohort of ten subjects suffering from a combination of chronic headaches, facial pain for at least 15 days per month and for at least 4h/day. RESULTS: At four weeks post-implant follow up, all patients reported sustained pain relief of the primary pain area. Electrode location and total number of electrodes used per subject varied across the cohort. The average pain reduction using the visual analog scale was >=82%. The procedure had no adverse events or side effects. CONCLUSION: Percutaneous placement of a wireless neurostimulation device directly adjacent to affected craniofacial nerve(s) is a minimally invasive and reversible method of pain control in patients with craniofacial pain refractory to conventional medical managements. Preliminary results are encouraging and further larger scale studies are required for improved applications. PMID- 29030174 TI - Growth hormone protects against kainate excitotoxicity and induces BDNF and NT3 expression in chicken neuroretinal cells. AB - There is increasing evidence to suggest a beneficial neuroprotective effect of growth hormone (GH) in the nervous system. While our previous studies have largely focused on retinal ganglion cells (RGCs), we have also found conclusive evidence of a pro-survival effect of GH in cells of the inner nuclear layer (INL) as well as a protective effect on the dendritic trees of the inner plexiform layer (IPL) in the retina. The administration of GH in primary neuroretinal cell cultures protected and induced neural outgrowths. Our results, both in vitro (embryo) and in vivo (postnatal), showed neuroprotective actions of GH against kainic acid (KA)-induced excitotoxicity in the chicken neuroretina. Intravitreal injections of GH restored brain derived neurotrophic factor (BDNF) expression in retinas treated with KA. In addition, we demonstrated that GH over-expression and exogenous administration increased BDNF and neurotrophin-3 (NT3) gene expression in embryonic neuroretinal cells. Thus, GH neuroprotective actions in neural tissues may be mediated by a complex cascade of neurotrophins and growth factors which have been classically related to damage prevention and neuroretinal tissue repair. PMID- 29030176 TI - Physiologically based pharmacokinetic modeling of disposition and drug-drug interactions for valproic acid and divalproex. AB - Valproic acid (VPA) is an older first-line antiepileptic drug with a complex pharmacokinetic (PK) profile, currently under investigation for several novel neurologic and non-neurologic indications. Our study objective was to design and validate a mechanistic model of VPA disposition in adults and children; and evaluate its predictive performance of drug-drug interactions (DDIs). This study expands upon existing physiologically based pharmacokinetic (PBPK) models for VPA by incorporating UGT enzyme kinetics and an advanced dissolution, absorption, and metabolism (ADAM) model for extended-release (ER) formulation. PBPK models for VPA IR and ER formulations were constructed using Simcyp Simulator (Version 15). First-order absorption was used for the immediate-release (IR) formulation and the ADAM model, including a controlled-release profile, for ER. Data from twenty one published clinical studies were used to assess model performance. The model accurately predicted the concentration-time profiles of IR formulation for single dose and steady-state doses ranging from 200mg to 1000mg. Similarly profiles were also simulated for ER formulation after a single-dose and steady-state doses of 500mg and 1000mg, respectively. In addition, simulated PK profiles agreed well with the observed data from studies in which VPA ER formulation was given to pediatric patients and VPA IR formulation to adult patients with cirrhosis. The model was further validated with individual adult data from a Phase I clinical trial consisting of eight cohorts after IV infusion of VPA with doses ranging from 15 to 150mg/kg. Co-administrations of VPA as an enzyme-inhibitor with victim drug phenytoin or lorazepam, as well as a substrate with enzyme inducer carbamazepine or phenobarbital, were simulated with the model to evaluate drug drug interaction. The simulated serum concentration-time profiles were within the 5th and 95th percentiles, and the majority of the predicted area-under-the-curve (AUC) and peak plasma concentration (Cmax) values were within 25% of the reported average values. The comprehensive VPA PBPK model defined by this study may be used to support dosage regimen optimization to improve the safety and efficacy profile of this agent under different scenarios. PMID- 29030175 TI - Characterization of the pleiotropic roles of Sonic Hedgehog during retinal regeneration in adult zebrafish. AB - In contrast to the mammalian retina, the zebrafish retina possesses the ability to regenerate. This is primarily accomplished through Muller glial cells, which, upon damage, re-enter the cell cycle to form retinal progenitors. The progenitors continue to proliferate as they migrate to the area of damage and ultimately differentiate into new neurons. The purpose of this study was to characterize the expression and function of Sonic Hedgehog (Shh) during regeneration of the adult zebrafish retina. Expression profiling of Shh pathway genes showed a significant upregulation of expression associated with stages of progenitor proliferation and neuronal differentiation. Activation of Shh signaling during early stages of retinal regeneration using intraocular injections of the recombinant human SHH (SHH-N) resulted in increased Muller cell gliosis, proliferation, and neuroprotection of damaged retinal neurons. Continued activation of Shh resulted in a greater number of differentiated amacrine and ganglion cells in the fully regenerated retina. Conversely, inhibition of Shh signaling using intraocular injections of cyclopamine resulted in decreased Muller glial cell proliferation and a fewer number of regenerated amacrine and ganglion cells. These data suggest that Shh signaling plays pleiotropic roles in proliferation and differentiation during adult zebrafish retinal regeneration. PMID- 29030177 TI - Eprosartan mesylate loaded bilosomes as potential nano-carriers against diabetic nephropathy in streptozotocin-induced diabetic rats. AB - The objective of the present study was to formulate eprosartan mesylate loaded nano-bilosomes and investigates its potential for controlling streptozotocin induced diabetes nephropathy in Wistar rats. The eprosartan mesylate loaded nano bilosomes comprising of various ratios of soybean phosphatidylcholine/sodium deoxycholate were prepared by thin film hydration technique. The prepared formulations were evaluated for vesicles size, polydispersity index, zeta potential and entrapment efficiency. Further the optimized formulation was characterized for vesicles morphology, and its efficacy for the management of diabetic nephropathy in Wistar rats. The optimized eprosartan mesylate loaded nano-bilosomes exhibited vesicles size, polydispersity index, zeta potential and entrapment efficiency of 63.88+/-3.46nm, 0.172+/-0.026, -30.40+/-2.75mV and 61.19+/-0.88% respectively. In vivo activity demonstrated that the prepared eprosartan mesylate loaded nano-bilosomes formulation demonstrated a nephro protecting outcome as shown by the substantial decrease in serum creatinine, urea, lactate dehydrogenase, total albumin, and malondialdehyde. Additionally, an oral administration of eprosartan mesylate loaded nano-bilosomes decreases the raised expressions of Angiotensin II type 1 receptor, inducible nitric oxide synthase, and transforming growth factor-beta1 in Wistar rats. Further, histopathological examination established the nephro-protective effect of prepared formulation. In conclusion, the research work in the paper suggests that the prepared eprosartan mesylate loaded nano-bilosomes could serve as a practical oral formulation for diabetic nephropathy in future therapy and may offer potential benefits in cases with hypertension and renal disease. PMID- 29030179 TI - Designing probe from E6 genome region of human Papillomavirus 16 for sensing applications. AB - Human Papillomavirus (HPV) is a standout amongst the most commonly reported over 100 types, among them genotypes 16, 18, 31 and 45 are the high-risk HPV. Herein, we designed the oligonucleotide probe for the detection of predominant HPV type 16 for the sensing applications. Conserved amino acid sequences within E6 region of the open reading frame in the HPV genome was used as the basis to design oligonucleotide probe to detect cervical cancer. Analyses of E6 amino acid sequences from the high-risk HPVs were done to check the percentage of similarity and consensus regions that cause different cancers, including cervical cancer. Basic local alignment search tools (BLAST) have given extra statistical parameters, for example, desire values (E-values) and score bits. The probe, 'GGG GTC GGT GGA CCG GTC GAT GTA' was designed with 66.7% GC content. This oligonucleotide probe is designed with the length of 24 mer, GC percent is between 40 and 70, and the melting point (Tm) is above 50 degrees C. The probe needed an acceptable length between 22 and 31 mer. The choice of region is identified here can be used as a probe, has implications for HPV detection techniques in biosensor especially for clinical determination of cervical cancer. PMID- 29030178 TI - A lectin mediated delivery system for the intravesical treatment of bladder diseases using poly-(L)-glutamic acid as polymeric backbone. AB - In this study, we present a targeted drug delivery system to improve intravesical therapy of bladder diseases. The drug delivery system consists of wheat germ agglutinin (WGA) to facilitate specific interaction with the surface of bladder cells and alpha-poly-(L)-glutamic acid (PGA) as polymeric backbone to increase the number of drug molecules per targeting moiety. Additionally, fluorescein cadaverine was coupled to PGA to visualise and track the delivery system. Using 5637 single cells and cell monolayers, the optimised F-PGA-WGA delivery system, with an approximate molecular weight of 670kDa, could convince with its promising cytoadhesive as well as cytoinvasive potential. Using the competitive inhibitor N, N', N"-triacetylchitotriose a specificity of the carbohydrate-mediated interaction between the cell and the delivery system of up to 98% was determined. F-PGA alone did not show any interaction with the cells. Moreover, a high drug loading of 77 molecules of the model drug Dansylcadaverine per backbone was achieved. Microscopic analysis further confirmed binding and uptake of the cytoadhesive polymer even after additional loading with the model drug. Combining the auspicious targeting properties of WGA with the high drug loading possibilities of the backbone might finally lead to an enhanced efficacy when used for intravesical therapy. PMID- 29030180 TI - Designing a direct ELISA kit for the detection of Staphylococcus aureus enterotoxin A in raw milk samples. AB - Under favorable growth conditions, Staphylococcus aureus infects and causes illnesses in humans and animals. Staphylococcal enterotoxins are considered the most important factor for food poisoning, with these toxins usually found in milk and its byproducts. This study investigated the presence of a classical enterotoxin of S. aureus (enterotoxin A) in raw cow milk samples obtained from Region 3 of Tehran. Sixty cow milk samples were collected from traditional dairy sales centers in the study site. Electrophoresis, high-performance liquid chromatography, sandwich ELISA, and direct ELISA were evaluated as methods for detecting toxins in the milk. A direct ELISA kit was designed, with the best factors, the most suitable densities, and the most optimal temperatures and temporal incubation conditions incorporated into the design. Among the evaluated methods, direct ELISA exhibited the highest accuracy in toxin detection. The designed kit achieved a correctness coefficient of 0.98 and detected enterotoxin A in 23% of the samples. It also exhibited a relative sensitivity and other features that are comparable to those of other bacterial detection techniques. Finally, the kit achieved good matching and repetition results, and no cross reactions occurred between enterotoxins during the procedure. PMID- 29030181 TI - Use of gelatin and gum Arabic for encapsulation of black raspberry anthocyanins by complex coacervation. AB - Protein-polysaccharide interactions offer opportunities for designing the new functional foods with applications in the food and pharmaceutical industries. In this work, we microencapsulated black raspberry water extracts by double emulsion technique prior to complex coacervation using gelatin and gum Arabic to diminish the instability of their anthocyanins (ANCs) as water soluble compounds, particularly under harsh processing and storage conditions. Subsequently, optical microscopy, moisture, hygroscopicity, solubility, particle size, loading capacity, zeta potential, color parameters (L*, a*, b*, C, H degrees and TCD), stability, Fourier transform infrared spectroscopy (FTIR), and thermal behavior were evaluated. The microcapsules presented the lower moisture, hygroscopicity and solubility values as comparing the free form of ANCs. They showed the average sizes ranging from 35.34+/-3.21 to 80.22+/-5.21MUm and high loading capacity (29.67+/-0.66-38.54+/-0.08%). According to the HPLC results, the selected method significantly increased the stability of ANCs up to 23.66% after 2 months of storage at 37+/-2 degrees C. FT-IR spectra confirmed the negative zeta potential values of microcapsules and the occurrence of coacervation process. DSC results evidenced the thermostability of microcapsules. Furthermore, the selected optimal microcapsules revealed intense red color over the time of storage, implying the effectiveness of the method chosen to preserve anthocyanins. PMID- 29030182 TI - Biosynthesis of dextran by Weissella confusa and its In vitro functional characteristics. AB - The aim of this study was to monitor the influence of the fermentation conditions on the exopolysaccharides (EPS) biosynthesis. For this, different culture media compositions were tested on an isolated lactic acid bacteria (LAB) strain, identified by 16S rDNA sequence as being Weissella confusa. It was proved that this bacterial strain culture in MRS medium supplemented with 80g/L sucrose and dissolved in UHT milk produced up to 25.2g/L of freeze-dried EPS, in static conditions, after 48h of fermentative process. Using FTIR and NMR analysis, it was demonstrated that the obtained EPS is a dextran. The thermal analysis revealed a dextran structure with high purity while GPC analysis depicted more fractions, which is normal for a biological obtained polymer. A concentration up to 3mg/mL of dextran proved to have no cytotoxic effect on normal human dermal fibroblasts (NHDF). Moreover, at this concentration, dextran breaks up to 70% of the biofilms formed by the Candida albicans SC5314 strain, and has no antimicrobial activity against standard bacterial strains. Due to their characteristics, these EPS are suitable as hydrophilic matrix for controlled release of drugs in pharmaceutical industry. PMID- 29030183 TI - Modification by alpha-d-glucan branching enzyme lowers the in vitro digestibility of starch from different sources. AB - Granular corn starch, waxy corn starch, potato starch and tapioca starch were modified using the alpha-d-glucan branching enzyme (1,4-alpha-d-glucan:1,4-alpha d-glucan 6-alpha-d-(1,4-alpha-d-glucano)-transferase, GBE, EC 2.4.1.18) from Geobacillus thermoglucosidans. The GBE-catalyzed modification caused a time dependent increase in the ratios of alpha-1,6 linkages to total glycosidic linkages, as well as reductions in the average chain length and relative crystallinity. These modifications lowered the in vitro digestibility of the starch. Modification with GBE caused varying degrees of change in the in vitro digestibility of starches obtained from different sources. The highest slowly digestible starch (SDS) and resistant starch (RS) contents were found in modified tapioca starch. After modification of tapioca starch with GBE for 10h, the ratio of alpha-1,6 linkages to total glycosidic linkages was increased by 11.5%, while its relative crystallinity was decreased by 22.9%. Meanwhile, the SDS and RS contents of tapioca starch were increased by 47.3% and 13.5%, respectively. These results demonstrate that the digestibility of starch can be lowered through GBE modification, which may aid the development of modified starches that are digested more slowly. PMID- 29030184 TI - Screening of drug-sericin solid dispersions for improved solubility and dissolution. AB - The aim of present attempt deals with preparation of binary dispersion of sericin, waste of sericulture industry in order to enhance solubility and dissolution of poorly soluble drugs. Solid dispersions (SDs) of BCS-II drugs were prepared by spray drying, solvent evaporation, ball milling and physical mixing in ratio of drug:sericin (1:0.5, 1:1, 1:1.5, 1:2, 1:2.5 and 1:3). Further, SDs were investigated by solubility, ATR-FTIR, XRD, DSC, micromeritics and tablettability, surface morphology and in-vitro dissolution. Results demonstrated that, sericin improves solubility of drugs by 8-10 fold. The ATR-FTIR showed the slight shifting/broadening of principle peaks corresponding to NH and OH. Spray dried (1:2w/w) SDs showed maximum reduction in crystallinity of drugs indicating drug was molecularly distributed and was in amorphous state. Spray dried SDs of meloxicam showed better compressibility and compactibility. The microphotograph of spray dried SDs of lornoxicam and meloxicam showed bowl shaped and blend of bowl and spherical particles respectively, while spray dried SDs of felodepine showed spherical shape. The spray dried SDs (1:2w/w) displayed better dissolution performance than other methods Conclusively, sericin offers a hydrophilic matrix to deliver poor water soluble drugs and its aerodynamic shape may show a great potential for various drug deliveries. PMID- 29030185 TI - Inhibitory effect of tartrate against phosphate-induced DJ-1 aggregation. AB - The DJ-1 protein engages in diverse cellular and pathological processes, including tumorigenesis, apoptosis, sperm fertilization, and the progression of Parkinson's disease (PD). The functional dimeric form of DJ-1 transforms into non functional filamentous aggregates in an inorganic phosphate (Pi)-dependent manner in vitro. Here, we demonstrated that Pi and reactive oxygen species (ROS) induce DJ-1 aggregation in Neuro2A and SH-SY5Y cells. Remarkably, tartrate treatment significantly reduced Pi- and ROS-induced DJ-1 aggregation and restored Pi- and ROS-provoked cell death using quantitative data as mean+/-standard deviation, and statistics. Mechanistically, tartrate prevented DJ-1 aggregation via occupying the Pi-binding site. These findings revealed an unexpected physiological role of tartrate in the maintenance of DJ-1 function, and thus, a potential use as an inhibitor of DJ-1 aggregation. PMID- 29030186 TI - Counteraction of the deleterious effects of urea on structure and stability of mammalian kidney proteins by osmolytes. AB - Owing to the urine concentrating mechanism of kidney cells, urea concentration is very high (3.0-5.0M) in mammalian kidneys which may denature many kidney proteins. Methylamines are known to counteract the deleterious effects of urea on structure, stability and function of proteins at 2:1 molar ratio of urea to methylamines. It is known that mammalian kidney cells also contain stabilizing osmolytes, non-methylamines (myo-inositol and sorbitol). A question arises: Do these non-methylmine osmolytes have ability to counteract the deleterious effects of urea on kidney proteins? To answer this question, we took two kidney proteins, namely, sheep serum albumin and Human carbonic anhydrase II. We measured their thermodynamic stability (DeltaG0N<->D, the Gibbs free energy change in absence of GdmCl (guanidinium chloride) associated with the equilibrium, native (N) state< >denatured (D) state) from the GdmCl-induced denaturation curves in the presence of different concentrations of urea and each kidney osmolyte individually and in combination. For both proteins, we observed that (i) glycine betaine and myo inositol provide perfect counteraction at 2:1 molar ratio of urea to osmolyte, i.e., denaturing effect of 2M urea is 100% neutralized by 1M of glycine betaine (or myo-inositol), and (ii) sorbitol fails to refold urea denatured proteins. PMID- 29030187 TI - Not only tendons: The other architecture of collagen fibrils. AB - For many decades the fibrillar collagens have been the subject of a remarkable body of ultrastructural research. The vast majority of the studies, however, were carried out on tendon or on tendon-derived material. For many reasons this reflects an obvious choice but at the same time it also is an unfortunate circumstance, because this flooding of tendon-related data can easily encourage the false confidence that all connective tissues are similar. The reality is quite the opposite, and a different fibrillar structure has been long time observed on collagen fibrils from different tissues, the most notable example being offered by corneal fibrils. The same architecture can be found in a number of disparate tissues and may actually be the prevalent one on a whole-body scale. Although these fibrils diverge from those of tendon in their architecture, size, D-period, composition, cross-linking and fibrillogenesis mechanism, their structure was the subject of rather sparse ultrastructural studies and even today their mere existence is often overlooked or ignored. This paper summarizes the main aspects of the structural biology of these forgotten fibrils. PMID- 29030188 TI - The green fabrication, characterization and evaluation of catalytic antioxidation of gold nanoparticle-lignocellulose composite papers for active packaging. AB - Gold nanoparticles (AuNPs) were directly synthesized and anchored on lignocellulose fiber without an external immobilizing agent via a facile green approach using unbleached kraft (UBK) softwood pulp. The obtained AuNPs were confirmed by UV-vis diffuse reflectance spectroscopy, field-emission scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The antioxidant behavior of the as-prepared AuNP-UBK fiber nanocomposite was evaluated by free radical scavenging of 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH). The nanocomposite fiber exhibited greatly enhanced radical scavenging activity compared to that of the pure fiber. As a consequence, AuNP-UBK nanocomposite paper showed exceptional antioxidant performance with a radical scavenging rate of over 98%, which is attributed to the synergistic effects of adsorption by the fiber-fiber network and subsequent catalytic activity of the AuNPs. This research indicated that AuNP-UBK fiber nanocomposites could be a new candidate for antioxidant active packaging for use in food preservation. PMID- 29030189 TI - Thermostabilization of a thermophilic 1,4-alpha-glucan branching enzyme through C terminal truncation. AB - Thermophilic proteins are useful for the detailed investigation of thermostability because they function efficiently at high temperatures. Comparison of the amino acid sequences and three-dimensional structures of mesophilic and thermophilic 1,4-alpha-glucan branching enzymes (GBEs) shows that the amino acid sequence of the last 26 residues at the C-terminal end of the GBE from Geobacillus thermoglucosidans STB02 (GBEGt, GenBank accession no. KJ660983) are not conserved, and that their 3-dimensional structure is flexible. These residues appear to be modified based upon a balance between flexibility and rigidity that is related to thermostability. In this study, a truncated mutant of GBEGt made by removing the last 26 residues from its C-terminal end was found to have increased thermostability and solubility, compared with the wild-type enzyme. Additionally, truncation of a portion of the C-terminus resulted in a decrease in aqueous stability. The circular dichroism spectra of GBEGt and GBEGtDeltaC were also found to be different. These results suggest that deletion of flexible residues at the C-terminal end of GBEGt, which are located on the surface of the enzyme, enhances the thermostability of the enzyme without significantly compromising its enzymatic activity. PMID- 29030190 TI - Design of a pH-sensitive magnetic composite hydrogel based on salecan graft copolymer and Fe3O4@SiO2 nanoparticles as drug carrier. AB - Salecan, a novel water-soluble extracellular beta-glucan, is very suitable for the hydrogel preparation. Here, pH-sensitive magnetic composite hydrogel was fabricated by the graft copolymerization of crotonic acid (CA) and N (hydroxymethyl) acrylamide (HMAA) onto salecan in the presence of Fe3O4@SiO2 nanoparticles for doxorubicin (DOX) delivery. The embedment of Fe3O4@SiO2 nanoparticles into salecan-g-poly(CA-co-HMAA) hydrogel network endowed the material with magnetic property. In addition, DOX not only achieved effectively bound to the composite hydrogel, but also released in a controlled and pH dependent manner. The application of an external magnetic field could significantly enhance the drug release rate. More importantly, the released DOX preserved its bioavailability. Taken together, these hydrogel drug carriers provide a promising platform for magnetically targeted drug delivery. PMID- 29030191 TI - Effect of pH and surfactant on the protein: A perspective from theory and experiments. AB - In the present study, we are aimed to explore the bovine serum albumin (BSA) and sodium dodecyl sulfate (SDS) the interaction that can readily show the consequence of the change in concentration of protein with surfactants' various concentration and the different pH's, 4.0, 4.7, 7.0 of the medium through the many spectroscopic techniques. The BSA and SDS denaturation fully influenced by the pH. The results interpreted in terms of electrostatic and hydrophobic contributions to the stability of different phases formed in the system. Critical Micelle Concentration (CMC) of surfactant is influenced the protein folding and unfolding. The molecular docking supports the experiment data. This study demonstrates that the above and below the CMC of surfactant can significantly alter the binding interaction with the protein. PMID- 29030192 TI - Polyvinyl alcohol/Sodium alginate integrated silver nanoparticles as probable solution for decontamination of microbes contaminated water. AB - It is well known that the pathogenic multidrug resistant microbes are highly distributed and transferred to human through contaminated food and water. Advanced technologies have been developed for controlling these microbes using synthesized nanoparticles. In this study, biosynthesized silver nanoparticles were prepared, characterized and integrated with two synthetic and natural polymers. The polymers-silver nanoparticles were characterized using SEM, FTIR and mechanical properties of the membrane synthesized from either polymers with/without nanosilver. Both of pathogenic bacteria and yeast were tested for their resistance against 10 different antibiotics. The pathogens showed high resistance against 9 antibiotics and only one was recorded as potent. The cytotoxicity of nanosilver integrated polymers were tested against Hamster kidney cells and Human skin fibroblast cells, and the non-cytotoxic dose was checked for its antimicrobial activity against the selected pathogens. The obtained results in this study confirm that the using of the nanomaterials in safe doses could be a good substitution for biogenic antibiotics and chemicals used in water treatment. Moreover, the beads which were used in this study could be lasts for long period in water treatment station with high antibacterial capacity, in addition, it can be gathered easily at the end of the run. PMID- 29030193 TI - Inhibitory mechanism of two allosteric inhibitors, oleanolic acid and ursolic acid on alpha-glucosidase. AB - Glycemic control which can be efficaciously regulated by inhibiting alpha glucosidase activity is an effective therapy for diabetes mellitus. This work is to investigate the kinetics and inhibition mechanism of oleanolic acid and ursolic acid on alpha-glucosidase. Oleanolic acid and ursolic acid exhibited potent inhibitory activities with IC50 values of (6.35+/-0.02)*10-6 and (1.69+/ 0.03)*10-5molL-1 respectively in a reversible and non-competitive manner. Both of them binding to alpha-glucosidase induced the conformational change and intrinsic fluorescence quenching of alpha-glucosidase. The binding constants of oleanolic acid and ursolic acid with alpha-glucosidase at 298K were (2.04+/-0.02)*103 and (1.87+/-0.02)*103Lmol-1, respectively. Docking results showed that oleanolic acid and ursolic acid bound in different allosteric sites of cavity 2 and cavity 4 on alpha-glucosidase, respectively, which triggered allosteric regulation to perturb conformational dynamics of alpha-glucosidase, eventually leading to a decrease of catalytic activity of the enzyme. The substrate was not catalyzed by alpha glucosidase to generate further products due to formation of a nonreactive ternary complex of oleanolic acid- or ursolic acid-alpha-glucosidase-substrate. The combination of oleanolic acid and ursolic acid displayed a significant synergistic inhibition on alpha-glucosidase. PMID- 29030194 TI - Doughnut-shaped bovine serum albumin nanoparticles loaded with doxorubicin for overcoming multidrug-resistant in cancer cells. AB - Traditional spherical albumin nanoparticles remain as the dominant shape of nano carriers described in the literature at present, due to their simple desolvation method of synthesis. However, non-spherical shapes also show great promise as cancer drug delivery vectors. In this study, we report a novel synthetic strategy based on dimethyl sulfoxide (DMSO) addition during desolvation step, to produce doughnut-shaped bovine serum albumin nanoparticles (DBSA-NPs), while maintaining narrow size distributions and homogeneity. The characteristics such as size, polydispersity and doxorubicin loading of prepared DBSA-NPs in comparison with spherical ones were determined. The biodegradation of DBSA-NPs loaded with doxorubicin (Dox-DBSA-NPs) in the presence of trypsin enzyme was spectrophotometrically monitored directly based on doxorubicin release profile. The release profile was analyzed with different kinetic models and it was best fitted with Higuchi kinetics model. The anticancer effect of Dox-DBSA-NPs against lymphoblastic leukemia (MOLT-4) and multidrug resistant uterine sarcoma (MES SA/DX-5) cell lines were also investigated and the results were comparable with doxorubicin loaded spherical BSA nanoparticles. These results showed the potential of Dox-DBSA-NPs as a novel and high potential nano-carrier for management of non-resistance and also multidrug resistant cancer cells. PMID- 29030195 TI - Improvement of the catalytic characteristics of a salt-tolerant GH10 xylanase from Streptomyce rochei L10904. AB - A GH10 xylanase Srxyn10 from Streptomyce rochei L10904, and its truncated derivative, Srxyn10M, were investigated. Both displayed great salt-tolerant ability, retaining more than 95% and 91% activity after incubation at 37 degrees C for 1h in 3.0M and 5.0M NaCl, respectively. They exhibited a special hydrolytic property of forming xylobiose as the major product and produced fewer xylose compounds when combined with a reported xylanase while digesting corncob xylans. The mutant, Srxyn10M, was constructed from Srxyn10 by deleting the C-terminal carbohydrate-binding module. It possessed a 3.26-fold higher specific activity on beechwood xylan than Srxyn10. Moreover, Srxyn10M showed greater substrate affinity and catalytic efficiency than Srxyn10 when beechwood xylan, birchwood xylan, and oat-spelt xylan were used as substrates. The thermostability was also greatly improved. Therefore, the application potential was markedly enhanced by the improvement of these properties. PMID- 29030196 TI - Thiosemicarbazide and thiocarbohydrazide functionalized chitosan as ecofriendly corrosion inhibitors for carbon steel in hydrochloric acid solution. AB - Organically functionalized chitosan macromolecules namely Chitosan Thiosemicarbazide (CS-TS) and Chitosan-Thiocarbohydrazide (CS-TCH) were synthesized and evaluated as new corrosion inhibitors for mild steel corrosion in 1M HCl. The FTIR and 1H NMR studies confirmed the formation of the derivatives. The corrosion tests were performed using weight loss method, electrochemical measurements, surface morphology (AFM), quantum chemical investigation and molecular dynamics simulation methods. The maximum efficiency of 92% was obtained at a concentration as low as 200mgL-1. The inhibitors were found to obey Langmuir adsorption isotherm and exhibited both physical and chemical adsorption. Electrochemical impedance spectroscopy (EIS) results showed an increase in polarization resistance which supported the adsorption of inhibitors on the mild steel surface. Tafel data showed a mixed type behavior with cathodic predominance. The data of quantum chemical calculations and molecular dynamics simulation supported the experimental findings. PMID- 29030197 TI - Green synthesis of degradable conductive thermosensitive oligopyrrole/chitosan hydrogel intended for cartilage tissue engineering. AB - Electroactive scaffolds containing conductive polymers can promote tissue repair and regeneration. However, these polymers are non-degradable and cannot be removed from body. To overcome this limitation of conductive polymers, we developed a novel injectable electroactive hydrogel containing pyrrole oligomers which possessed the unique properties of being both electrically conductive and biodegradable. First, pyrrole oligomers were synthesized via chemical polymerization and were found to be amorphous with a non-globular morphology. Then, three different compositions of injectable chitosan/beta glycerophosphate hydrogels containing different concentrations of pyrrole oligomers were synthesized and characterized for chemical structure, morphology, conductivity, swelling ratio, In vitro biodegradation and gelation time. An increase in oligopyrrole content resulted in decreased pore size, and increased gelation time, swelling ratio, conductivity and degradation time. Among all the hydrogel compositions, the sample with pyrrole oligomer:chitosan ratio of 0.1 (w/w) showed the most prominent biodegradability, biocompatibility, electro-activity, swelling ratio and pore size values and was chosen as the optimal electroactive hydrogel composition in this work. PMID- 29030198 TI - Potential of ionic liquids for inhibiting the growth and beta-lactamase production by Bacillus cereus EMB20. AB - Present work reports the inhibition of Bacillus cereus EMB20 beta-lactamase by a deep eutectic solvent, maline in an uncompetitive manner. Far-UV CD and intrinsic fluorescence spectroscopy revealed a disrupted secondary as well as tertiary structure as a function of maline concentration. The effect of individual components of maline on beta-lactamase inhibition showed that malonic acid was mainly responsible for inhibiting the beta-lactamase. Structural and docking studies found that malonic acid led to major perturbations in the secondary and tertiary structure of the enzyme while H-bonding with the active site residues. Further the antibacterial and cytotoxic studies also confirmed the potential of maline as a potent growth inhibitor of beta-lactamase producing B. cereus EMB20. PMID- 29030200 TI - Iodine supplementation in pregnancy in mildly deficient regions. PMID- 29030199 TI - Effect of iodine supplementation in pregnant women on child neurodevelopment: a randomised, double-blind, placebo-controlled trial. AB - BACKGROUND: Iodine deficiency during pregnancy might be associated with reduced intelligence quotient (IQ) score in offspring. We assessed the effect of iodine supplementation in mildly iodine-deficient pregnant women on neurodevelopment of their offspring in areas where schoolchildren were iodine sufficient. METHODS: In this randomised, placebo-controlled trial, pregnant women in Bangalore, India, and Bangkok, Thailand, were randomly assigned (1:1) to receive 200 MUg iodine orally once a day or placebo until delivery. Randomisation was done with a computer-generated sequence and stratified by site. Co-primary outcomes were verbal and performance IQ scores on the Wechsler Preschool and Primary Scale of Intelligence Third Edition (WPPSI-III) and the global executive composite score from the Behaviour Rating Inventory of Executive Function-Preschool Version (BRIEF-P) in the children at age 5-6 years. The trial was double-blinded; some unmasking took place at age 2 years for an interim analysis, but participants and nearly all investigators remained masked to group assignment until age 5-6 years. Analysis was by intention to treat using mixed-effects models. This trial is registered with ClinicalTrials.gov, number NCT00791466. FINDINGS: Between Nov 18, 2008, and March 12, 2011, 832 women entered the trial at a mean gestational age of 10.7 weeks (SD 2.7); median urinary iodine concentration was 131 MUg/L (IQR 81 213). Mean compliance with supplementation was 87%, assessed by monthly tablet counts. 313 children (iodine group, n=159; placebo group, n=154) were analysed for verbal and performance IQ with WPPSI-III and 315 (iodine group, n=159; placebo group, n=156) for overall executive function with BRIEF-P. Mean WPPSI-III scores for verbal IQ were 89.5 (SD 9.8) in the iodine group and 90.2 (9.8) in the placebo group (difference -0.7, 95% CI -2.9 to 1.5; p=0.77), and for performance IQ were 97.5 (12.5) in the iodine group and 99.1 (13.4) in the placebo group (difference -1.6, -4.5 to 1.3; p=0.44). The mean BRIEF-P global executive composite score was 90.6 (26.2) in the iodine group and 91.5 (27.0) in the placebo group (difference -0.9, -6.8 to 5.0; p=0.74). The frequency of adverse events did not differ between groups during gestation or at delivery: 24 women in the iodine group and 28 in the placebo group reported adverse events (iodine group: abortion, n=20; blighted ovum, and n=2; intrauterine death, n=2; placebo group: abortion, n=22; blighted ovum, n=1; intrauterine death, n=2; early neonatal death, n=1; and neonatal death, n=2). INTERPRETATION: Daily iodine supplementation in mildly iodine-deficient pregnant women had no effect on child neurodevelopment at age 5-6 years. FUNDING: Swiss National Science Foundation, Nestle Foundation, Wageningen University and Research, and ETH Zurich. PMID- 29030201 TI - SGLT2 inhibitors: hypotheses on the mechanism of cardiovascular protection. PMID- 29030202 TI - Improving the clinical impact of randomised trials in thyroidology. PMID- 29030203 TI - Characterization and clinical evaluation of a novel 2D detector array for conventional and flattening filter free (FFF) IMRT pre-treatment verification. AB - BACKGROUND AND PURPOSE: The novel MatriXXFFF (IBA Dosimetry, Germany) detector is a new 2D ionization chamber detector array designed for patient specific IMRT plan verification including flattening-filter-free (FFF) beams. This study provides a detailed analysis of the characterization and clinical evaluation of the new detector array. MATERIAL AND METHODS: The verification of the MatriXXFFF was subdivided into (i) physical dosimetric tests including dose linearity, dose rate dependency and output factor measurements and (ii) patient specific IMRT pre treatment plan verifications. The MatriXXFFF measurements were compared to the calculated dose distribution of a commissioned treatment planning system by gamma index and dose difference evaluations for 18 IMRT-sequences. All IMRT-sequences were measured with original gantry angles and with collapsing all beams to 0 degrees gantry angle to exclude the influence of the detector's angle dependency. RESULTS: The MatriXXFFF was found to be linear and dose rate independent for all investigated modalities (deviations <=0.6%). Furthermore, the output measurements of the MatriXXFFF were in very good agreement to reference measurements (deviations <=1.8%). For the clinical evaluation an average pixel passing rate for gamma(3%,3mm) of (98.5+/-1.5)% was achieved when applying a gantry angle correction. Also, with collapsing all beams to 0 degrees gantry angle an excellent agreement to the calculated dose distribution was observed (gamma(3%,3mm)=(99.1+/-1.1)%). CONCLUSIONS: The MatriXXFFF fulfills all physical requirements in terms of dosimetric accuracy. Furthermore, the evaluation of the IMRT-plan measurements showed that the detector particularly together with the gantry angle correction is a reliable device for IMRT-plan verification including FFF. PMID- 29030204 TI - Interarterial Coronary Tract: Presumptive Echocardiographic Diagnosis. PMID- 29030205 TI - Large Congenital Coronary Fistula. PMID- 29030207 TI - Clinical Variety May Help Prevent Burnout After a Decade in Palliative Care. PMID- 29030206 TI - The Impact of Supporting Family Caregivers Before Bereavement on Outcomes After Bereavement: Adequacy of End-of-Life Support and Achievement of Preferred Place of Death. AB - CONTEXT: The investigation of the situation of bereaved family caregivers following caregiving during the end-of-life phase of illness has not received enough attention. OBJECTIVES: This study investigated the extent to which using the Carer Support Needs Assessment Tool (CSNAT) intervention during the caregiving period has affected bereaved family caregivers' perceptions of adequacy of support, their grief and well-being, and achievement of their preferred place of death. METHOD: All family caregivers who participated in a stepped-wedge cluster trial of the CSNAT intervention in Western Australia (2012 2014) and completed the pre-bereavement study (n = 322) were invited to take part in a caregiver survey by telephone four to six months after bereavement (2015). The survey measured the adequacy of end-of-life support, the level of grief, the current physical and mental health, and the achievement of the preferred place of death. RESULTS: The response rate was 66% (152, intervention; 60, control). The intervention group perceived that their pre-bereavement support needs had been adequately met to a significantly greater extent than the control group (d = 0.43, P < 0.001) and that patients have achieved their preferred place of death more often according to their caregivers (79.6% vs. 63.6%, P = 0.034). There was also a greater agreement on the preferred place of death between patients and their caregivers in the intervention group (P = 0.02). CONCLUSIONS: The results from this study provide evidence that the CSNAT intervention has a positive impact on perceived adequacy of support of bereaved family caregivers and achievement of preferred place of death according to caregivers. The benefits gained by caregivers in being engaged in early and direct assessment of their support needs before bereavement reinforce the need for palliative care services to effectively support caregivers well before the patient's death. PMID- 29030208 TI - Addressing a Patient's Hope for a Miracle. AB - Ill patients may make decisions to continue aggressive life-prolonging care based on hope for a miraculous recovery, and clinicians can find goals of care discussions with these patients extremely challenging. Thus, palliative care providers may be asked to help in these discussions. The concept of "miracle" can express a multitude of hopes, fears, and religious commitments. Effective, sensitive engagement requires the palliative care provider to attend to these variegated hopes, fears, and commitments. This case presents a typology of ways patients express hope for a miracle along with analysis of the motivations and beliefs underlying such hopes and suggestions for tailored responses by palliative care providers. PMID- 29030209 TI - Oncologists' and Patients' Perceptions of Initial, Intermediate, and Final Goals of Care Conversations. AB - CONTEXT: Although recommendations are for goals of care (GoC) conversations to happen early and often, their timing and content over the disease course remain unclear. OBJECTIVES: To describe perceptions of the timing and content of GoC conversations among oncologists and patients with advanced cancer. METHODS: Semi structured interviews with oncologists and patients at four hospitals in New York and Connecticut. We analyzed data using interpretive description. RESULTS: Oncologists (n = 21) were 67% male, averaged 46 years old (range 34-68 years), and had a mean 20 years (range 8-42 years) in practice. Advanced cancer patients (n = 39) were 59% female with a mean age of 58 years (range 26-88 years). Oncologists and patients viewed GoC conversations along an initial, intermediate, and final continuum. Oncologists reported having initial GoC conversations to build rapport, provide disease information, and clarify and consider treatment intent and options. Intermediate conversations focused on changes in treatment and side effects. Final conversations occurred when patients were hospice eligible and covered the shift to comfort care, a treatment summary, and advance directives. Timing and content were influenced by cancer type, disease status, and emotional state. Patients supported beginning GoC conversations early, but had different preferences for content of initial conversations. Some wanted complete information; others found this overwhelming. Patients felt intermediate GoC conversations should occur at decision points with time for processing. Content of intermediate and final conversations was dependent on patients' prognosis, questions, and treatment decisions. CONCLUSION: Although GoC conversations should follow individual patient preferences, our findings offer structure for their timing and content. PMID- 29030210 TI - Continuous Cardiac Inotropes in Patients With End-Stage Heart Failure: An Evolving Experience. AB - Heart failure (HF) experts recommend initiation of continuous inotrope therapy, such as milrinone or dobutamine, for clinically decompensating patients with stage D HF. Although originally intended to serve solely as a bridge to more definitive surgical therapies, more and more patients are receiving inotrope therapy for purely palliative purposes. In these cases, questions arise regarding care at the end of life. What criteria determine ongoing clinical benefit? Should the inotrope be continued until death? Should inotrope dosing be increased within recommended guidelines to improve symptoms? What is the role of inotropes in hospice care? Here, we describe such a case as a springboard to contemplate the evolving role of inotrope therapies and how hospice and palliative providers may interface with this rapidly developing face of advanced HF care. PMID- 29030211 TI - Identifying Opportunities to Improve Pain Among Patients With Serious Illness. AB - CONTEXT: Pain is a common and distressing symptom. Pain management is a core competency for palliative care (PC) teams. OBJECTIVE: Identify characteristics associated with pain and pain improvement among inpatients referred to PC. METHODS: Thirty-eight inpatient PC teams in the Palliative Care Quality Network entered data about patients seen between December 12, 2012 and March 15, 2016. We examined patient and care characteristics associated with pain and pain improvement. RESULTS: Of patients who could self-report symptoms, 30.7% (4959 of 16,158) reported moderate-to-severe pain at first assessment. Over 40% of these patients had not been referred to PC for pain. Younger patients (P < 0.0001), women (P < 0.0001), patients with cancer (P < 0.0001), and patients in medical/surgical units (P < 0.0001) were more likely to report pain. Patients with pain had higher rates of anxiety (P < 0.0001), nausea (P < 0.0001), and dyspnea (P < 0.0001). Sixty-eight percent of patients with moderate-to-severe pain improved by the PC team's second assessment within 72 hours; 74.7% improved by final assessment. There was a significant variation in the rate of pain improvement between PC teams (P < 0.0001). Improvement in pain was associated with improvement in anxiety (OR = 2.9, P < 0.0001) and dyspnea (OR = 1.4, P = 0.03). Patients who reported an improvement in pain had shorter hospital length of-stay by two days (P = 0.003). CONCLUSION: Pain is common among inpatients referred to PC. Three-quarters of patients with pain improve and improvement in pain is associated with other symptom improvement. Standardized, multisite data collection can identify PC patients likely to have marked and refractory pain, create benchmarks for the field, and identify best practices to inform quality improvement. PMID- 29030213 TI - Integrate and fire model with refractory period for synchronization of two cardiomyocytes. AB - We investigate an integrate and fire model for two cardiomyocytes interacting with each other. A feature of the model is to incorporate the refractory periods of the cardiomyocytes as well as the influence of firing of adjacent cells. The present model predicts that, if refractory periods of the two cells are nearly equal, the beating rhythms of the two cells always synchronize and their beating rate is tuned to the faster rate between the two cells. On the other hand, if their refractory periods significantly differ, they exhibit various kinds of harmonious beating rhythms. These results successfully explain the well known characteristics of synchronized beating of cultured cardiomyocytes. We also discuss effects of a delay time of cell-to-cell interaction, that gives further complicated phase diagrams for the beating rhythms. PMID- 29030212 TI - Modeling the chemotherapy-induced selection of drug-resistant traits during tumor growth. AB - The emergence of drug-resistance is a major challenge in chemotherapy. In this paper we develop a mathematical model to study the dynamics of drug-resistance in solid tumors. Our model follows the dynamics of the tumor, assuming that the cancer cell population depends on a phenotype variable that corresponds to the resistance level to a cytotoxic drug. The equation for the tumor density is written as a reaction-diffusion equation with a pressure term that depends on the local cell density. The model incorporates the dynamics of nutrients and two different types of drugs: a cytotoxic drug, which directly impacts the death rate of the cancer cells, and a cytostatic drug that reduces the proliferation rate. This model successfully integrates the phenotype structured drug-resistance approach with an asymmetric tumor growth model in space. Through analysis and simulations we study the impact of spatial and phenotypic heterogeneity on the tumor growth under chemotherapy. We demonstrate that heterogeneous cancer cells may emerge due to the selection dynamics of the environment. Our model predicts that under certain conditions, multiple resistant traits emerge at different locations within the tumor. We show that a higher dosage of the cytotoxic drug may delay a relapse, yet, when this happens, a more resistant trait emerges. Moreover, we estimate the expansion rate of the tumor boundary as well as the time of relapse, in terms of the resistance trait, the level of the nutrient, and the drug concentration. Finally, we propose an efficient drug schedule aiming at minimizing the growth rate of the most resistant trait. By combining the cytotoxic and cytostatic drugs, we demonstrate that the resistant cells can be eliminated. PMID- 29030214 TI - Fisher's fundamental theorem of natural selection, dynamic sufficiency, and the necessity of higher moments. AB - The "average effects" of alleles in Fisher's Fundamental Theorem of Natural Selection are meant to capture what having an allele does to fitness. These average effects however are generally not constant, because the way they are determined implies that they may depend on the composition of the current population. This can easily be mistaken for dynamic insufficiency. In a recent paper by Smerlak and Youssef (2017), both of these issues are moreover treated as related to the question whether or not there is a way around needing all higher moments for determining the long run behavior of a dynamical system. In this note I will argue that these are three unrelated issues. PMID- 29030215 TI - Analyzing cost-effectiveness of neural-monitoring in recurrent laryngeal nerve recovery course in thyroid surgery. AB - PURPOSE: The increasing use of intraoperative neural monitoring (IONM) of the recurrent laryngeal nerve (RLN) during thyroid surgery imposes an evaluation of cost-effectiveness. METHODS: The analysis estimated the cost versus utility of different alternatives that simulate nerve injury course and the consequences for the following cohorts of patients: (1) no RLN injury, or vocal fold palsy (VCP) recovery within 1 month (2), 2 months (3), 6 months (4), and after 12 months (5). In the model applied, the average simulated cohort consisted of a young female patient, 40 years old, employed, daily voice user, who underwent elective, conventional total thyroidectomy via cervical incision using a standardized intermittent IONM technique, for an operable benign, bilateral, diffuse, multinodular, non-toxic, non-retrosternal goiter. RESULTS: IONM was cost ineffective when parameters such as the rates of transient vocal fold palsy (VCP) reached 38.5%. IONM was cost-effective if the rate of VCP was 33.6% at 1 month, 22.9% at 2 months, 9.8% at 6 months, and 3.8% at 12 months, independent of phono surgery. The described scenario is cost-effective only in a high-volume setting. CONCLUSIONS: This study used simulation economic modeling to assess clinical and cost-effectiveness utility of IONM implementation. In light of the limitations of a simulation-based study, we conclusively assumed that IONM is cost-effective for permeant RLN injuries. PMID- 29030216 TI - Disrupted physiological reactivity among children with a history of suicidal ideation: Moderation by parental expressed emotion-criticism. AB - OBJECTIVE: The goal of this study was to examine physiological reactivity during parent-child interactions in children with and without a history of suicidal ideation (SI), a group known to be at increased risk for suicidal thoughts and behaviors in the future. We also examined the potential moderating role of parental expressed emotion-criticism (EE-Crit) to determine whether the presence of parental criticism may help to identify a subgroup of children with a history of SI most at risk for physiological dysregulation. METHOD: Participants were 396 children (age 7-11; 54% male, 71.7% Caucasian) and their biological parent. Children's levels of high frequency heart rate variability (HF-HRV) were assessed during a resting baseline period followed by a positive and negative discussion with their parent. Additionally, parents completed the Five-Minute Speech Sample to determine levels of EE-Crit toward their child, and children completed an interview assessing their history of SI. RESULTS: Consistent with our hypothesis, we found that exposure to parental criticism moderated the relation between a child's history of SI and their HF-HRV reactivity to the discussions. Specifically, while most children exhibited the typical pattern of HF-HRV suppression from baseline to both interactions, the highest risk children (i.e., children with a history of SI who also had highly critical parents) did not display any change in HF-HRV across the tasks, suggesting a failure to engage a typical psychophysiological response during emotional contexts. CONCLUSIONS: These results suggest a specific physiological mechanism that may place these children at risk for suicidal thoughts and behaviors in the future. PMID- 29030217 TI - Impact of peripheral immune status on central molecular responses to facial nerve axotomy. AB - When facial nerve axotomy (FNA) is performed on immunodeficient recombinase activating gene-2 knockout (RAG-2-/-) mice, there is greater facial motoneuron (FMN) death relative to wild type (WT) mice. Reconstituting RAG-2-/- mice with whole splenocytes rescues FMN survival after FNA, and CD4+ T cells specifically drive immune-mediated neuroprotection. Evidence suggests that immunodysregulation may contribute to motoneuron death in amyotrophic lateral sclerosis (ALS). Immunoreconstitution of RAG-2-/- mice with lymphocytes from the mutant superoxide dismutase (mSOD1) mouse model of ALS revealed that the mSOD1 whole splenocyte environment suppresses mSOD1 CD4+ T cell-mediated neuroprotection after FNA. The objective of the current study was to characterize the effect of CD4+ T cells on the central molecular response to FNA and then identify if mSOD1 whole splenocytes blocked these regulatory pathways. Gene expression profiles of the axotomized facial motor nucleus were assessed from RAG-2-/- mice immunoreconstituted with either CD4+ T cells or whole splenocytes from WT or mSOD1 donors. The findings indicate that immunodeficient mice have suppressed glial activation after axotomy, and cell transfer of WT CD4+ T cells rescues microenvironment responses. Additionally, mSOD1 whole splenocyte recipients exhibit an increased astrocyte activation response to FNA. In RAG-2-/- + mSOD1 whole splenocyte mice, an elevation of motoneuron-specific Fas cell death pathways is also observed. Altogether, these findings suggest that mSOD1 whole splenocytes do not suppress mSOD1 CD4+ T cell regulation of the microenvironment, and instead, mSOD1 whole splenocytes may promote motoneuron death by either promoting a neurotoxic astrocyte phenotype or inducing Fas-mediated cell death pathways. This study demonstrates that peripheral immune status significantly affects central responses to nerve injury. Future studies will elucidate the mechanisms by which mSOD1 whole splenocytes promote cell death and if inhibiting this mechanism can preserve motoneuron survival in injury and disease. PMID- 29030219 TI - Local infusion of ghrelin into the lateral amygdala blocks extinction of conditioned taste aversion in rats. AB - Ghrelin is an orexigenic brain-gut hormone promoting feeding and regulating energy metabolism in human and rodents. Our previous study showed that ghrelin locally infused into the lateral amygdala (LA) activates its receptor GHS-R1a and blocks acquisition of conditioned taste aversion (CTA) in rats. In this study, we further investigated the effect of ghrelin/GHS-R1a signaling on extinction of CTA. We found that local infusion of ghrelin (5MUM, 0.5MUl/side) into the LA not only interfered with CTA memory formation, but also the extinction of CTA memory. Pre-administration of GHS-R1a antagonist blocked ghrelin's effect on both CTA acquisition and extinction. However, pre-treatment with PI3K inhibitor only abolished the inhibitory effect of ghrelin on acquisition, but not on extinction. Altogether, our data indicated that ghrelin/GHS-R1a signaling in the LA circuit modulates both acquisition and extinction of CTA, the two forms of taste aversion processes with distinct mechanisms may also share certain molecular and circuit components in common. PMID- 29030218 TI - Acupuncture suppresses intravenous methamphetamine self-administration through GABA receptor's mediation. AB - OBJECTIVES: Methamphetamine is one of the widely abused drugs. In spite of a number of studies, there is still little successful therapy to suppress the methamphetamine abuse. Acupuncture has shown to attenuate the reinforcing effects of psychostimulant. Based on, the present study investigated if acupuncture could suppress intravenous methamphetamine self-administration behavior. In addition, a possible neuronal mechanism was investigated. MATERIALS & METHODS: Male Sprague Dawley rats weighing 270-300g were trained to intake food pellet. After catheter implantation, animal was trained to self-administer methamphetamine (0.05mg/kg) intravenously using fixed ratio 1 schedule in daily 2h session during 3 weeks. After training, rats who established baseline (infusion variation less than 20% of the mean for 3 consecutive days) received acupuncture treatment on the next day. Acupuncture was performed at each acupoint manually. In the second experiment, the selective antagonists of GABAA or GABAB receptor were given before acupuncture to investigate the possible neuronal involvement of GABA receptor pathway in the acupuncture effects. C-Fos expression was examined in the nucleus accumbens to support behavioral data. RESULTS: Acupuncture at HT7, but not at control acupoint LI5, reduced the self-administration behavior significantly. Also, the effects of acupuncture were blocked by the GABA receptor antagonists. C-Fos expression was shown to be parallel with the behavioral data. CONCLUSIONS: Results of this study have shown that acupuncture at HT7 suppressed methamphetamine self-administration through GABA receptor system, suggesting that acupuncture at HT7 can be a useful therapy for the treatment of methamphetamine abuse. PMID- 29030220 TI - The correlation between DNA methylation and transcriptional expression of human dopamine transporter in cell lines. AB - This study aims to investigate the relationship between DNA methylation and expression of human dopamine transporter (hDAT). We examined methylation status of hDAT in cells with various hDAT expression levels, including two dopaminergic neural cell lines (SK-N-AS and SH-SY-5Y) and one non-dopaminergic cell line (HEK293) by bisulfite sequencing PCR(BSP). The effects of DNA methyltransferase inhibitor 5-aza-dC or/and histone deacetylase inhibitor (HDACi, sodium butyrate, NaB) on the DNA methylation status and mRNA expression levels of hDAT were examined. The results revealed marked hypomethylation of the two promoter regions (-1214 to -856bp and -48 to 439bp, the first base of exon 1 was taken as +1 bp)of hDAT in SK-N-AS (4.7%+/-2.0mC and 3.5%+/-1.0mC, respectively) compared with SH-SY 5Y (88.0%+/-4.4%mC and 81.1%+/-8.8%mC) and HEK293 (90.7%+/-2.4mC and 84.4%+/-8.6% mC) cell lines, indicating a cell-specific methylation regulation of hDAT. 5-aza dC and NaB decreased hypermethylation,while increase hDAT expression in SH-SY-5Y cells and recovered hDAT mRNA expression in HEK293 cells. DNA methylation enabled the cell-specific differential expression of the hDAT gene. hDAT silencing was reversed by the introduction of DNA hypomethylation via 5-aza-dC or/and NaB. PMID- 29030221 TI - Inhibition of BDNF production by MPP+ through up-regulation of miR-210-3p contributes to dopaminergic neuron damage in MPTP model. AB - The neurotrophin brain-derived neurotrophic factor (BDNF) has been involved in supporting of neuron survival. The observation of reduced level of BDNF in the substantia nigra (SN) of Parkinson's disease (PD) patients suggests its important role in neuron protection in PD pathogenesis. However, the mechanism underlying the down-regulation of BDNF in PD was largely unknown. In this study, we found that miR-210-3p is involved in the regulation of BDNF production by 1-methyl-4 phenylpyridinium (MPP+). MPP+ inhibits the BDNF production in SH-SY5Y cells through a transcription independent manner. Moreover, miR-210-3p, which targets BDNF mRNA, is up-regulated by MPP+ in SH-SY5Y cells. Importantly, inhibition of miR-210-3p prevents the reduction of BDNF production by MPP+ and improves the DA neuron survival in 1-methyl-4-phenyl-1,2,3,6-tetra hydropyridine (MPTP) model. Together, we demonstrated up-regulation of miR-210-3p by MPP+ reduces the BDNF production and contributes to the DA neuron damage. PMID- 29030223 TI - 3D printed multi-compartment capsular devices for two-pulse oral drug delivery. AB - In the drug delivery area, versatile therapeutic systems intended to yield customized combinations of drugs, drug doses and release kinetics have drawn increasing attention, especially because of the advantages that personalized pharmaceutical treatments would offer. In this respect, a previously proposed capsular device able to control the release performance based on its design and composition, which could extemporaneously be filled, was improved to include multiple separate compartments so that differing active ingredients or formulations may be conveyed. The compartments, which may differ in thickness and composition, resulted from assembly of two hollow halves through a joint also acting as a partition. The systems were manufactured by fused deposition modeling (FDM) 3D printing, which holds special potential for product personalization, and injection molding (IM) that would enable production on a larger scale. Through combination of compartments having wall thickness of 600 or 1200MUm, composed of promptly soluble, swellable/erodible or enteric soluble polymers, devices showing two-pulse release patterns, consistent with the nature of the starting materials, were obtained. Systems fabricated using the two techniques exhibited comparable performance, thus proving the prototyping ability of FDM versus IM. PMID- 29030222 TI - Vascular changes in tumors resistant to a vascular disrupting nanoparticle treatment. AB - Anti-angiogenic and vascular disrupting therapies rely on the dependence of tumors on new blood vessels to sustain tumor growth. We previously reported a potent vascular disrupting agent, a theranostic nanosystem consisting of a tumor vasculature-homing peptide (CGKRK) fused to a pro-apoptotic peptide [D(KLAKLAK)2] coated on iron oxide nanoparticles. This nanosystem showed promising therapeutic efficacy in glioblastoma (GBM) and breast cancer models. However, complete control of the tumors was not achieved, and some tumors became non-responsive to the treatment. Here we examined the non-responder phenomenon in an aggressive MCF10-CA1a breast tumor model. In the treatment-resistant tumors we noted the emergence of CD31-negative patent neovessels and a concomitant loss of tumor homing of the nanosystem. In vivo phage library screening in mice bearing non responder tumors showed that compared to untreated and treatment-sensitive tumors, treatment sensitive tumors yield a distinct landscape of vascular homing peptides characterized by over-representation of peptides that target alphav integrins. Our approach may be generally applicable to the development of targeted therapies for tumors that have failed treatment. PMID- 29030226 TI - Self-sourced online and self-directed at home: a new frontier for abortion in the United States. PMID- 29030224 TI - Transfer-molded wrappable microneedle meshes for perivascular drug delivery. AB - After surgical procedures such as coronary/peripheral bypass grafting or endarterectomy for the treatment of organ ischemia derived from atherosclerosis, intimal hyperplasia (IH) which leads to restenosis or occlusion at the site of graft anastomosis frequently occurs. In order to inhibit IH caused by abnormal growth of smooth muscle cells (SMCs) in tunica media, various perivascular drug delivery devices are reported for delivery of anti-proliferation drugs into vascular tissue. However, there still remain conflicting requirements such as local and unidirectional delivery vs device porosity, and conformal tight device installation vs pulsatile expansion and constriction of blood vessels. In this study, a biodegradable microneedle (MN) array is developed on a flexible woven surgical mesh using a transfer molding method. Mechanical properties of 'wrappable' MN meshes are investigated and compared to the properties of blood vessels. Ex vivo and in vivo animal studies demonstrate enhanced drug delivery efficiency, efficacy for IH reduction, and safety of MN mesh. In particular, MN mesh showed significantly reduced neointiamal formation (11.1%) compared to other competitive groups (23.7 and 22.2%) after 4-week in vivo animal study. Additionally, wrappable MN meshes effectively suppressed side effects such as IH due to mechanical constriction, loss of toxic drug to the surroundings, and cell death that were frequently observed with other previous perivascular drug delivery devices. PMID- 29030225 TI - An intelligent re-shieldable targeting system for enhanced tumor accumulation. AB - Programmed ligand targeting strategy promotes the blood circulation stability of nanoparticles by shielding the ligand. However, the irreversible shielding causes the deshielded nanoparticles to be easily recognized and cleared by the reticuloendothelial system (RES), impeding their further retention in the tumor. Here, we for the first time prove the superiority of the intelligent re shieldable targeting system that is based on the pH-responsive self assembly/disassembly of gold nanoparticles. The system can enhance the stability of gold nanoparticles in the blood circulation (2.6-fold at 24h), reduce uptake by the RES (35% lower) and improve tumor accumulation (41% higher by analysis of gold content in tumor) effectively compared with the conventional irreversible system. Furthermore, preliminary study indicates that the system could be applied as computed tomography contrast agent in tumor imaging. The in vivo validity of the intelligent re-shieldable targeting system provides inspiration for the design of nanomaterials for cancer diagnosis and treatment. PMID- 29030227 TI - Exploring the feasibility of obtaining mifepristone and misoprostol from the internet. AB - OBJECTIVES: We aimed to document the experience of buying abortion pills from online vendors that do not require a prescription and to evaluate the active ingredient content of the pills received. STUDY DESIGN: We searched the internet to identify a convenience sample of websites that sold mifepristone and misoprostol to purchasers in the United States and attempted to order these products. We documented price, shipping time and other aspects of ordering. We sent the samples received to a testing laboratory that measured the amount of active ingredient in individual tablets. RESULTS: We identified 18 websites and ordered 22 products: 20 mifepristone-misoprostol combination products and 2 that contained only misoprostol. We received 18 combination products and the 2 misoprostol products from 16 different sites. No site required a prescription or any relevant medical information. The time between order and receipt of the 20 products ranged from 3 to 21 business days (median 9.5 days). The price for the 18 combination products ranged from $110 to $360, including shipping and fees; the products without mifepristone cost less. Chemical assays found that the 18 tablets labeled 200 mg mifepristone contained between 184.3 mg and 204.1 mg mifepristone, while the 20 tablets labeled 200 mcg misoprostol contained between 34.1 mcg and 201.4 mcg of the active ingredient. CONCLUSIONS: Obtaining abortion medications from online pharmaceutical websites is feasible in the United States. The mifepristone tablets received contained within 8% of the labeled amount of active agent. The misoprostol tablets all contained that compound but usually less than labeled. IMPLICATIONS STATEMENT: Given our findings, we expect that some people for whom clinic-based abortion is not easily available or acceptable may consider self-sourcing pills from the internet to be a rational option. PMID- 29030228 TI - The relation between young children's physiological arousal and their motivation to help others. AB - Children are motivated to help others from an early age. However, little is known about the internal biological mechanisms underlying their motivation to help. Here, we compiled data from five separate studies in which children, ranging in age from 18 months to 5.5 years, witnessed an adult needing help. In all studies, we assessed both (1) children's internal physiological arousal via changes in their pupil dilation, and (2) the latency and likelihood of them providing help. The results showed that the greater the baseline-corrected change in children's internal arousal in response to witnessing the need situation, the faster and more likely children were to help the adult. This was not the case for the baseline measure of children's tonic arousal state. Together, these results suggest that children's propensity to help is systematically related to their physiological arousal after they witness others needing help. This sheds new light on the biological mechanisms underlying not only young children's social perception but also their prosocial motivation more generally. PMID- 29030229 TI - Elevation of Proenkephalin 143-183 in Cerebrospinal Fluid in Moyamoya Disease. AB - BACKGROUND: In moyamoya disease (MMD), the causes of differences in clinical features between children and adults and of the dramatic temporal changes in moyamoya vessels are poorly understood. We previously discovered elevated levels of m/z 4588 and m/z 4473 peptides in cerebrospinal fluid (CSF) in patients with MMD. This study examined the amino acid sequences of these peptides and quantified in specimens. METHODS: The m/z 4588 and m/z 4473 peptides in CSF from patients with MMD were purified and concentrated by high-performance liquid chromatography and ultrafiltration. Liquid chromatography coupled with tandem mass spectrometry analysis was performed to identify the amino acid sequences of these peptides. We quantified these peptides in samples using sandwich enzyme linked immunosorbent assay, and concentrations in CSF were compared between MMD (n = 40, 19 male; median age, 37 years) and non-MMD intracranial disease (n = 40, 19 male; median age, 39 years) as controls. RESULTS: These peptides were identified as proenkephalin 143-183 (PENK 143-183). The concentration of PENK 143 183 was significantly greater in patients with MMD (median, 8,270 pmol/L) than control patients (median, 3,760 pmol/L; P < 0.001) and decreased in an age dependent manner in MMD (r = -0.57; P < 0.001). The area under the receiver operating characteristic curve in children (age <18 years) was 0.885 (95% confidence interval 0.741-1). The correlation between proenkephalin concentration and temporal changes in moyamoya vessels was suggested. CONCLUSIONS: Proenkephalin 143-183 in CSF may offer a helpful diagnostic biomarker in pediatric MMD. The effect of enkephalin peptides through opioid growth factor receptor or delta opioid receptor might be associated with the pathophysiology of MMD. PMID- 29030230 TI - Unilateral C1 Sagittal Split Fractures: An Unusual Entity Revisited. AB - BACKGROUND: An isolated, unilateral fracture of the C1 lateral mass is a rare condition that has been only minimally described in the literature. Historically, these fractures have predominantly been managed conservatively with either external immobilization or traction. CASE DESCRIPTION: We review the literature and present 2 patients that presented after failing conservative management, but demonstrated excellent clinical outcomes after surgical treatment. CONCLUSIONS: After failure of conservative management, unilateral sagittal split fractures may be safely and effectively managed with unilateral open reduction and placement of a lag screw. PMID- 29030232 TI - A novel bone targeting delivery system carrying phytomolecule icaritin for prevention of steroid-associated osteonecrosis in rats. AB - One of the effective strategies for prevention of steroid-associated osteonecrosis (SAON) is to inhibit bone resorption and fat formation and promote bone formation at osteonecrotic sensitive skeletal sites. We identified a novel phytomolecule that showed positive effects on osteogenesis, anti-bone resorption and anti-adipogenesis in vitro and also developed a bone-targeting delivery system (BTDS) for in vivo experimental study. The study investigated if our innovative synthesized BTDS carrying this phytomolecule would be able to effectively prevent SAON in a rat model. SAON was induced by combined injections of lipopolysaccharide and methylprednisolone. SAON rats were divided into four groups, one SAON untreated control group and three SAON treatment groups with different types of delivery systems (Asp8-liposome-icaritin, liposome-icaritin and Asp8-liposome) for two weeks. SAON lesions were identified and osteoclasts activity, osteogenesis and adipogenesis at these sites were evaluated by immunohistochemistry. Ex vitro study was also designed to evaluate the osteogenic and adipogenic potential of the isolated bone marrow stromal cells (BMSCs) via real-time PCR and histochemical staining. Our results showed that as a bone surface-specific BTDS, Asp8-liposome-icaritin effectively prevented steroids treated rats from SAON with significantly decreased osteocytes apoptosis, down regulated osteoclatsogenesis and up-regulated osteogenesis. However, both liposome-icaritin and Asp8-liposome treatment did not show significant efficacy for SAON prevention. In summary, this proof-concept-study showed for the first time that the innovative Asp8-liposome-icaritin BTDS was effective for prevention of SAON in terms of bone resorption prevention, adipogenesis suppression, and bone-formation enhancement. PMID- 29030233 TI - Percutaneous left atrial appendage closure is not ready for routine clinical use. PMID- 29030231 TI - ALS-associated mutation SOD1G93A leads to abnormal mitochondrial dynamics in osteocytes. AB - While the death of motor neuron is a pathological hallmark of amyotrophic lateral sclerosis (ALS), defects in other cell types or organs may also actively contribute to ALS disease progression. ALS patients experience progressive skeletal muscle wasting that may not only exacerbate neuronal degeneration, but likely has a significant impact on bone function. In our previous published study, we have discovered severe bone loss in an ALS mouse model with overexpression of ALS-associated mutation SOD1G93A (G93A). Here we further provide a mechanistic understanding of the bone loss in ALS animal and cellular models. Combining mitochondrial fluorescent indicators and confocal live cell imaging, we discovered abnormalities in mitochondrial network and dynamics in primary osteocytes derived from the same ALS mouse model G93A. Those mitochondrial defects occur in ALS mice after the onset of neuromuscular symptoms, indicating that mitochondria in bone cells respond to muscle atrophy during ALS disease progression. To examine whether ALS mutation has a direct contribution to mitochondrial dysfunction independent of muscle atrophy, we evaluated mitochondrial morphology and motility in cultured osteocytes (MLO-Y4) with overexpression of mitochondrial targeted SOD1G93A. Compared with osteocytes overexpressing the wild type SOD1 as a control, the SOD1G93A osteocytes showed similar defects in mitochondrial network and dynamic as that of the primary osteocytes derived from the ALS mouse model. In addition, we further discovered that overexpression of SOD1G93A enhanced the expression level of dynamin-related protein 1 (Drp1), a key protein promoting mitochondrial fission activity, and reduced the expression level of optic atrophy protein 1 (OPA1), a key protein related to mitochondrial fusion. A specific mitochondrial fission inhibitor (Mdivi-1) partially reversed the effect of SOD1G93A on mitochondrial network and dynamics, indicating that SOD1G93A likely promotes mitochondrial fission, but suppresses the fusion activity. Our data provide the first evidence that mitochondria show abnormality in osteocytes derived from an ALS mouse model. The accumulation of mutant SOD1G93A protein inside mitochondria directly causes dysfunction in mitochondrial dynamics in cultured MLO-Y4 osteocytes. In addition, the ALS mutation SOD1G93A-mediated dysfunction in mitochondrial dynamics is associated with an enhanced apoptosis in osteocytes, which could be a potential mechanism underlying the bone loss during ALS progression. PMID- 29030234 TI - Left atrial appendage closure devices: A reasonable therapeutic alternative. PMID- 29030235 TI - Impact of ventricular tachycardia ablation on health care utilization. AB - BACKGROUND: Catheter ablation of ventricular tachycardia (VT) has been shown to reduce the number of recurrent shocks in patients with an implantable cardioverter-defibrillator (ICD). However, how VT ablation affects postprocedural medical and pharmaceutical usage remains unclear. OBJECTIVE: The purpose of this study was to investigate changes in health care resource utilization (HCRU) after VT ablation. METHODS: This large-scale, real-world, retrospective study used the MarketScan databases to identify patients in the United States with an ICD or cardiac resynchronization therapy-defibrillator (CRT-D) undergoing VT ablation. We calculated cumulative medical and pharmaceutical expenditures, office visits, hospitalizations, and emergency room (ER) visits in the 1-year periods before and after ablation. RESULTS: A total of 523 patients met the study inclusion criteria. After VT ablation, median annual cardiac rhythm-related medical expenditures decreased by $5,408. Moreover, the percentage of patients with at least 1 cardiac rhythm-related hospitalization and ER visit decreased from 53% and 41% before ablation to 28% and 26% after ablation, respectively. Similar changes were observed in the number of all-cause hospitalizations and ER visits, but there were no significant changes in all-cause medical expenditures. During the year before VT ablation, there was an increasing rate of health care resource utilization, followed by drastic slowing after ablation. CONCLUSION: This retrospective study demonstrated that catheter ablation seems to reduce hospitalization and overall health care utilization in VT patients with an ICD or CRT-D in place. PMID- 29030237 TI - Contact force sensing for ablation of persistent atrial fibrillation: A randomized, multicenter trial. AB - BACKGROUND: Impact of contact force sensing (CFS) on ablation of persistent atrial fibrillation (PeAF) is unknown. OBJECTIVE: The purpose of the TOUCH AF (Therapeutic Outcomes Using Contact force Handling during Ablation of Persistent Atrial Fibrillation) randomized trial was to compare CFS-guided ablation to a CFS blinded strategy. METHODS: Patients (n = 128) undergoing first-time ablation for persistent AF were randomized to a CFS-guided vs CFS-blinded strategy. In the CFS guided procedure, operators visualized real-time force data. In the blinded procedure, force data were hidden. Wide antral pulmonary vein isolation plus a roof line were performed. Patients were followed at 3, 6, 9, and 12 months with clinical visit, ECG, and 48-hour Holter monitoring. The primary endpoint was cumulative radiofrequency (RF) time for all procedures. Atrial arrhythmia >30 seconds after 3 months was a recurrence. RESULTS: PeAF was continuous for 26 weeks (interquartile range [IQR] 13-52), and left atrial size was 45 +/- 5 mm. Force in the CFS-blinded and CFS-guided arms was 12 g [IQR 6-20] and 14 g [IQR 9 20] (P = .10), respectively. Total RF time did not differ between CFS-guided and CFS-blinded groups (49 +/- 14 min vs 50 +/- 20 min, respectively; P = .70). Single procedure freedom from atrial arrhythmia was 60% in the CFS-guided arm and 63% in the CFS-blinded arm off drugs. Lesions with gaps were associated with significantly less force (11.4 g [IQR 6-19] vs 13.2 g [IQR 8-20], respectively; P = .0007) and less force-time integral (174 gs [IQR 91-330] vs 210 gs [IQR 113 388], respectively; P <.001). CONCLUSION: CFS-guided ablation resulted in no difference to RF time or 12-month outcome. Lower force/force-time integral was associated with significantly more gaps. PMID- 29030236 TI - Accentuated vagal antagonism paradoxically increases ryanodine receptor calcium leak in long-term exercised Calsequestrin2 knockout mice. AB - BACKGROUND: Long-term aerobic exercise alters autonomic balance, which may not be favorable in heart rate (HR)-dependent arrhythmic diseases including catecholaminergic polymorphic ventricular tachycardia (CPVT) because of preexisting bradycardia and increased sensitivity to parasympathetic stimulation. OBJECTIVE: The purpose of this study was to determine whether long-term exercise induced autonomic adaptations modify CPVT susceptibility. METHODS: We determined exercise-induced parasympathetic effects on HR, arrhythmia incidence, and intracellular sarcoplasmic reticulum (SR) Ca2+ leak in atrial (ACM) and ventricular (VCM) cardiomyocytes, in exercised (EX) calsequestrin knockout (CASQ2 /-) mice, a model of CPVT. RESULTS: Although 8-week treadmill running improved exercise capacity in EX CPVT mice, the incidence and duration of ventricular tachycardia also increased. HR variability analyses revealed an increased high frequency component of the power spectrum and root mean square of successive differences in R-R intervals indicating accentuated vagal antagonism during beta adrenergic stimulation resulting in negligible HR acceleration. In EX CASQ2-/- VCM, peak amplitude of Ca2+ transient (CaT) increased, whereas SR Ca2+ content decreased. Aberrant Ca2+ sparks occurred at baseline, which was exacerbated with isoproterenol. Notably, although 10 MUM of the cholinergic agonist carbachol prevented isoproterenol-induced Ca2+ waves in ACM, CaT amplitude, SR Ca2+ load, and isoproterenol-induced Ca2+ waves paradoxically increased in VCM. In parallel, ventricular ryanodine receptor (RyR2) protein expression increased, whereas protein kinase A- and calmodulin-dependent protein kinase II-mediated phosphorylation of RyR2 was not significantly altered, which could imply an increased number of "leaky" channels. CONCLUSION: Our novel results suggest that long-term exercise in CASQ2-/- mice increases susceptibility to ventricular arrhythmias by accentuating vagal antagonism during beta-adrenergic challenge, which prevents HR acceleration and exacerbates abnormal RyR2 Ca2+ leak in EX CASQ2-/- VCM. PMID- 29030238 TI - Atrial fibrillation and cognitive decline: Another piece for a big puzzle. PMID- 29030240 TI - Postoperative Myocardial Infarction in Administrative Data vs Clinical Registry: A Multi-Institutional Study. AB - BACKGROUND: Previous studies have documented significant differences between administrative data and registry data in the determination of postoperative MI. The goal of this study was to characterize discordance between administrative and registry data in the determination of postoperative myocardial infarction (MI). STUDY DESIGN: This study was performed using data from the American College of Surgeons NSQIP merged with administrative data from 8 different hospitals, between 2013 and 2015. From each of these sources, the occurrence of a postoperative MI, as ascertained by administrative data and NSQIP data, were compared. In each situation in which the 2 sources disagreed (discordance), a 2 clinician chart review was performed to generate a "gold standard" determination as to the occurrence of postoperative MI. RESULTS: A total of 43,289 operations met our inclusion criteria for analysis. Within this cohort a total of 230 cases of MI were identified by administrative data and/or NSQIP data (administrative rate 0.41%, NSQIP rate 0.42%). A total of 89 discordant ascertainments were identified, of which 42 were admin+/NSQIP- and 47 were admin-/NSQIP+. Accuracy (99.9% for both) and concordance (kappa = 0.89 [95% CI 0.86 to 0.92] for administrative data, kappa = 0.87 [95% CI 0.84 to 0.91] for NSQIP data) of the 2 systems were similar when compared against our gold standard (chart review). The majority of errors were related to false negatives, with sensitivity rates of 81% in both data sources. CONCLUSIONS: In this multi-institutional study, administrative data and NSQIP demonstrated a similar ability to determine the occurrence of postoperative MI. These findings do not demonstrate an advantage of registry data over administrative data in the determination of postoperative MI. PMID- 29030239 TI - Surgical Antibiotic Prophylaxis and Risk for Postoperative Antibiotic-Resistant Infections. AB - BACKGROUND: Antibiotic-resistant infections have high rates of morbidity and mortality, and exposure to antibiotics is the crucial risk factor for development of antibiotic resistance. If surgical antibiotic prophylaxis (SAP) increases risk for antibiotic-resistant infections, prophylaxis may cause net harm, even if it decreases overall infection rates. STUDY DESIGN: This retrospective cohort study included adults who underwent elective surgical procedures and developed infections within 30 postoperative days. Procedures from multiple disciplines were included if SAP was considered discretionary by current guidelines. Postoperative antibiotic-resistant infections were defined as positive culture results from any site within 30 postoperative days, showing intermediate or nonsusceptibility across 1 or more antibiotic classes. Surgical antibiotic prophylaxis included use of antibiotics within any class and at any dose from 1 hour before first incision until the end of the operation. RESULTS: Among 689 adults with postoperative infections, 338 (49%) had postoperative resistant infections. Use of SAP was not associated with postoperative antibiotic-resistant infections (odds ratio [OR] 0.99; 95% CI 0.67 to 1.46). This result remained robust when the SAP definition was extended to antibiotics given within 4 hours before first incision (OR 0.94; 95% CI 0.63 to 1.40) and when the follow-up window was narrowed to 14 days (OR 0.82; 95% CI 0.50 to 1.34). Previous antibiotic-resistant infections were associated with risk for postoperative antibiotic-resistant infections (OR 1.81; 95% CI 1.16 to 2.83). CONCLUSIONS: Use of SAP was not associated with risk for postoperative antibiotic-resistant infections in a large cohort of patients with postoperative infections. This provides important reassurance regarding use of surgical antibiotic prophylaxis. PMID- 29030241 TI - Discovery of hidden allosteric sites as novel targets for allosteric drug design. AB - Hidden allosteric sites, as a novel type of allosteric site, are invisible in ligand-unbound (apo) crystal structures, but can emerge in ligand-bound (holo) crystal structures when a specific ligand binds to, and stabilizes, a unique conformation favored by the ligand. However, the identification of these sites is a significant challenge. Several computational and experimental approaches have been developed to identify such sites in proteins. Here, we outline these approaches, with a focus on examples of the successful use of such techniques. The discovery of hidden allosteric sites offers a new avenue for facilitating drug design by greatly expanding the repertoire of available drug targets, contributing to the search for allosteric drugs for the treatment of human diseases. PMID- 29030242 TI - Orodispersible dosage forms: biopharmaceutical improvements and regulatory requirements. AB - Orodispersible dosage forms have a growing presence in the pharmaceutical market because their administration can improve the bioavailability of some drugs and their prescription can ameliorate patient adherence and/or compliance. Here, we review the main features of orodispersible tablets, including oral lyophilisates, and orodispersible films along with their main production technologies. We summarize the bioavailability data and critically discussed their potential to improve patient adherence and/or compliance. We revisit this information in light of both the European Union (EU) and US regulatory frameworks, focusing on the differences in the definitions of such dosage forms and the requirements for marketing authorization. PMID- 29030244 TI - Pore formation and the key factors in antibacterial activity of aurein 1.2 and LLAA inside lipid bilayers, a molecular dynamics study. AB - Aurein 1.2 and LLAA are two antimicrobial peptides with different antibacterial activities (LLAA>Aurein 1.2), though their amino acid sequences are similar. In this manuscript, we study the key features for the different antibacterial activities of these peptides using molecular dynamics simulation. We find that in water, both peptides become disordered and LLAA is observed to have higher water solubility, a feature which may contribute to enhancing its propensity to disrupt the bilayer and thus higher activity. Both peptides are also investigated while they are initially located inside lipid bilayer as a pre-formed vertical channel composed of five parallel copies of each peptide. LLAA demonstrates larger structural deviation from the initial helical structure and also more structural flexibility which is concluded to be a key feature in its stronger activity. In the presence of LLAA, the bilayer order is perturbed more pronouncedly and the number of water molecules penetrating into bilayer is higher. It is shown that stronger electrostatic interactions, more hydrophobic contacts and more hydrogen bonds between lipid and LLAA also lead to stronger activity of LLAA. The simulation results show instability of the barrel-stave pores for our peptides inside lipid bilayers. PMID- 29030245 TI - Effect of phosphatidylcholine bilayer thickness and molecular order on the binding of the antimicrobial peptide maculatin 1.1. AB - Antimicrobial peptides (AMPs) interact directly with bacterial membrane lipids. Thus, changes in the lipid composition of bacterial membranes can have profound effects on the activity of AMPs. In order to understand the effect of bilayer thickness and molecular order on the activity of AMPs, the interaction of maculatin 1.1 (Mac1.1) with phosphatidylcholine (PC) model membranes composed of different monounsaturated acyl chain lengths between 14 and 22 carbons was characterised by dual polarisation interferometry (DPI) and 31P and 1H solid state NMR techniques. The thickness and bilayer order of each PC bilayer showed a linear dependence on the acyl chain length. The binding of Mac1.1 exhibited a biphasic dependency between the amount of bound Mac1.1 and bilayer thickness, whereby the mass of bound peptide increased from C14 to C16 and then decreased from C16 to C22. Significant perturbation of 31P chemical shift anisotropy (CSA) values was only observed for DOPC (C18) and DEPC (C22), respectively. In the case of DEPC, the greater range in CSA indicated different headgroup conformations or environments in the presence of Mac1.1. Overall, the results indicated that there is a significant change in the bilayer order upon binding of Mac1.1 and this change occurred in a co-operative manner at higher concentrations of Mac1.1 with increasing bilayer thickness and order. Overall, an optimum bilayer thickness and lipid order may be required for effective membrane perturbation by Mac1.1 and increasing the bilayer thickness and order may counteract the activity of Mac1.1 and play a role in antimicrobial resistance to AMPs. PMID- 29030243 TI - The inhibition of the kynurenine pathway prevents behavioral disturbances and oxidative stress in the brain of adult rats subjected to an animal model of schizophrenia. AB - Evidence has shown that the kynurenine pathway (KP) plays a role in the onset of oxidative stress and also in the pathophysiology of schizophrenia. The aim of this study was to use a pharmacological animal model of schizophrenia induced by ketamine to investigate if KP inhibitors could protect the brains of Wistar rats against oxidative stress and behavioral changes. Ketamine, injected at the dose of 25mg/kg, increased spontaneous locomotor activity. However, the inhibitors of tryptophan 2,3-dioxygenase (TDO), indoleamine 2,3-dioxygenase (IDO) and kynurenine-3-monooxygenase (KMO) were able to reverse these changes. In addition, the IDO inhibitor prevented lipid peroxidation, and decreased the levels of protein carbonyl in the prefrontal cortex (PFC), hippocampus and striatum. It also increased the activity of superoxide dismutase (SOD) in the hippocampus, as well as increasing the levels of catalase activity in the PFC and hippocampus. The TDO inhibitor prevented lipid damage in the striatum and reduced the levels of protein carbonyl in the hippocampus and striatum. Also, the TDO inhibitor increased the levels of SOD activity in the striatum and CAT activity in the hippocampus of ketamine-induced pro-oxidant effects. Lipid damage was not reversed by the KMO inhibitor. The KMO inhibitor increased the levels of SOD activity in the hippocampus, and reduced the levels of protein carbonyl while elevating the levels of CAT activity in the striatum of rats that had been injected with ketamine. Our findings revealed that the KP pathway could be a potential mechanism by which a schizophrenia animal model induced by ketamine could cause interference by producing behavioral disturbance and inducing oxidative stress in the brain, suggesting that the inhibition of the KP pathway could be a potential target in treating schizophrenia. PMID- 29030246 TI - Interaction of a model apolipoprotein, apoLp-III, with an oil-phospholipid interface. AB - Lipid droplets are "small" organelles that play an important role in de novo synthesis of new membrane, and steroid hormones, as well as in energy storage. The way proteins interact specifically with the oil-(phospho-)lipid monolayer interface of lipid droplets is a relatively unexplored but crucial question. Here, we use our home built liquid droplet tensiometer to mimic intracellular lipid droplets and study protein-lipid interactions at this interface. As model neutral lipid binding protein, we use apoLp-III, an amphipathic alpha-helix bundle protein. This domain is also found in proteins from the perilipin family and in apoE. Protein binding to the monolayer is studied by the decrease in the oil/water surface tension. Previous work used POPC (one of the major lipids found on lipid droplets) to form the phospholipid monolayer on the triolein surface. Here we expand this work by incorporating other lipids with different physico chemical properties to study the effect of charge and lipid head-group size. This study sheds light on the affinity of this important protein domain to interact with lipids. PMID- 29030249 TI - Sex as a biological variable: Drug use and abuse. AB - The study of sex as a biological variable is a necessary emphasis across a wide array of endpoints, including basic neuroscience, medicine, mental health, physiology and behavior. The present review summarizes work from clinical and preclinical populations on sex differences in drug use and abuse, ranging from initiation to escalation/dysregulation and from drug cessation/abstinence to relapse. These differences are analyzed in the context of the addiction cycle conceptualization of Koob and his colleagues and address patterns of drug use (binge/intoxication), motivation underlying its use (withdrawal/negative affect) and likelihood and causes of craving and relapse of drug taking (preoccupation/anticipation). Following this overview, an assessment of the basis for the reported sex differences is discussed in the context of the affective (rewarding and aversive) properties of drugs of abuse and how such properties and their balance vary with sex and contribute to drug intake. Finally, the interaction of sex with several experiential (drug history) and subject (age) factors and how these interactions affect reward and aversion are discussed to highlight the importance of understanding such interactions in predicting drug use and abuse. We note that sex as a biological variable remains one of critical evaluation and that such investigations of sex differences in drug use and abuse continue and be expanded to assess all facets of their mediation, including these affective properties, how their balance may be impacted by the multiple conditions under which drugs are taken and how this overall balance affects drug use and addiction vulnerability. PMID- 29030248 TI - Explicit wanting and liking for palatable snacks are differentially affected by change in physiological state, and differentially related to salivation and hunger. AB - Incentive salience theory (IST) suggests that 'wanting' and liking are dissociable processes. We argue that explicit measures of wanting in humans can reflect the impact of implicit 'wanting' as envisaged by IST, suggesting that dissociations should also be evident for explicit judgments of wanting and liking. To test this, participants were asked to make ratings of these variables for 8 palatable snack foods - and in a related test salivation rate was also assessed. Participants viewed and sniffed each snack food and rated wanting, and then sampled it and rated liking and whether they wanted more of it. Following a lunch eaten to satiety, and composed in part of half of the palatable snack foods, participants repeated their evaluations of the snack foods (and salivation rate). Liking changed less across lunch than wanting and want more ratings, the last-mentioned changing the most. Change in liking was associated with change in salivation rate, independent of wanting, and change in wanting was associated with change in hunger independent of liking. We argue these dissociations are consistent with 'wanting' influencing explicit wanting, and that want more ratings may represent a 'purer' measure of IST 'wanting'. PMID- 29030247 TI - Inhibition of intestinal ascorbic acid uptake by lipopolysaccharide is mediated via transcriptional mechanisms. AB - Ascorbic acid (AA) accumulation in intestinal epithelial cells is an active transport process mainly mediated by two sodium-dependent vitamin C transporters (SVCT-1 and SVCT-2). To date, little is known about the effect of gut microbiota generated lipopolysaccharide (LPS) on intestinal absorption of water-soluble vitamins. Therefore, the objective of this study was to investigate the effects of bacterially-derived LPS on AA homeostasis in enterocytes using Caco-2 cells, mouse intestine and intestinal enteroids models. Pre-treating Caco-2 cells and mice with LPS led to a significant decrease in carrier-mediated AA uptake. This inhibition was associated with a significant reduction in SVCT-1 and SVCT-2 protein, mRNA, and hnRNA expression. Furthermore, pre-treating enteroids with LPS also led to a marked decrease in SVCT-1 and SVCT-2 protein and mRNA expression. Inhibition of SVCT-1 and SVCT-2 occurred at least in part at the transcriptional level as promoter activity of SLC23A1 and SLC23A2 was attenuated following LPS treatment. Subsequently, we examined the protein and mRNA expression levels of HNF1alpha and Sp1 transcription factors, which are needed for basal SLC23A1 and SLC23A2 promoter activity, and found that they were significantly decreased in the LPS treated Caco-2 cells and mouse jejunum; this was reflected on level of the observed reduction in the interaction of these transcription factors with their respective promoters in Caco-2 cells treated with LPS. Our findings indicate that LPS inhibits intestinal carrier- mediated AA uptake by down regulating the expression of both vitamin C transporters and transcriptional regulation of SLC23A1 and SLC23A2 genes. PMID- 29030250 TI - Fructo-oligosaccharides reduce energy intake but do not affect adiposity in rats fed a low-fat diet but increase energy intake and reduce fat mass in rats fed a high-fat diet. AB - The ingestion of low or high lipid diets enriched with fructo-oligosaccharide (FOS) affects energy homeostasis. Ingesting protein diets also induces a depression of energy intake and decreases body weight. The goal of this study was to investigate the ability of FOS, combined or not with a high level of protein (P), to affect energy intake and body composition when included in diets containing different levels of lipids (L). We performed two studies of similar design over a period of 5weeks. During the first experiment (exp1), after a 3 week period of adaptation to a normal protein-low fat diet, the rats received one of the following four diets for 5weeks (6 rats per group): (i) normal protein (14% P/E (Energy) low fat (10% L/E) diet, (ii) normal protein, low fat diet supplemented with 10% FOS, (iii) high protein (55%P/E) low fat diet, and (iv) high protein, low fat diet supplemented with 10% FOS. In a second experiment (exp2) after the 3-week period of adaptation to a normal protein-high fat diet, the rats received one of the following 4 diets for 5weeks (6 rats per group): (i) normal protein, high fat diet (35% of fat), (ii) normal protein, high fat diet supplemented with 10% FOS, (iii) high protein high fat diet and (iv) high protein high fat diet supplemented with 10% FOS. In low-fat fed rats, FOS did not affect lean body mass (LBM) and fat mass but the protein level reduced fat mass and tended to reduce adiposity. In high-fat fed rats, FOS did not affect LBM but reduced fat mass and adiposity. No additive or antagonistic effects between FOS and the protein level were observed. FOS reduced energy intake in low-fat fed rats, did not affect energy intake in normal-protein high-fat fed rats but surprisingly, and significantly, increased energy intake in high-protein high-fat fed rats. The results thus showed that FOS added to a high-fat diet reduced body fat and body adiposity. PMID- 29030251 TI - Intravenous immunoglobulin (IVIG) treatment modulates peripheral blood Th17 and regulatory T cells in recurrent miscarriage patients: Non randomized, open-label clinical trial. AB - BACKGROUND: Th17 cells and Treg cells have been proposed as new risk factors for recurrent miscarriage (RM). In this study, we investigated the effect of Intravenous immunoglobulin G (IVIG) on the levels and function of Th17 and Treg cells and pregnancy outcome in women with RM. MATERIALS AND METHODS: 94 pregnant women with RM were enrolled in this study. Blood was drawn at the time of positive pregnancy. On the same day, IVIG 400mg/kg was administered intravenously for 44 patients. 50 other RM patients were included as no IVIG interfering control group. Following the first administration, IVIG was given every 4 weeks through 32 weeks of gestation. Peripheral blood was drawn after the last administration (32 weeks after pregnancy). RESULTS: IVIG down-regulated Th17 cells population and function and up-regulated Treg cells population and function were significant in the treated group. Pregnancy outcome in IVIG treated subjects was successful in 38 out of 44 RM women (86.3%). However, pregnancy outcome was successful in 21 out of 50 untreated RM women (42%). CONCLUSION: Administration of IVIG in RM women with cellular immune cells abnormalities during pregnancy influences Th17/Treg ratio in peripheral blood and enhances Treg and decreases Th17 responses. PMID- 29030252 TI - Sub-clonal analysis of the murine C1498 acute myeloid leukaemia cell line reveals genomic and immunogenic diversity. AB - BACKGROUND: In acute myeloid leukaemia (AML)-affected patients, the presence of heterogeneous sub-clones at diagnosis has been shown to be responsible for minimal residual disease and relapses. The role played by the immune system in this leukaemic sub-clonal hierarchy and maintenance remains unknown. As leukaemic sub-clone immunogenicity could not be evaluated in human AML xenograft models, we assessed the sub-clonal diversity of the murine C1498 AML cell line and the immunogenicity of its sub-clones in immune-competent syngeneic mice. METHODOLOGY: The murine C1498 cell line was cultured in vitro and sub-clonal cells were generated after limiting dilution. The genomic profiles of 6 different sub-clones were analysed by comparative genomic hybridization arrays (CGH). The sub-clones were then injected into immune-deficient and - competent syngeneic mice. The immunogenicities of the sub-clones was evaluated through 1) assessment of mouse survival, 2) determination of leukaemic cell infiltration into organs by flow cytometry and the expression of a fluorescent reporter gene, 3) assessment of the CTL response ex vivo and 4) detection of residual leukaemic cells in the organs via amplification of the genomic reporter gene by real-time PCR (qPCR). RESULTS: Genomic analyses revealed heterogeneity among the parental cell line and its derived sub-clones. When injected individually into immune-deficient mice, all sub-clones induced cases of AML with different kinetics. However, when administered into immune-competent animals, some sub-clones triggered AML in which no mice survived, whereas others elicited reduced lethality rates. The AML surviving mice presented efficient anti-leukaemia CTL activity ex vivo and eliminated the leukaemic cells in vivo. CONCLUSION: We showed that C1498 cell sub clones presented genomic heterogeneity and differential immunogenicity resulting either in immune escape or elimination. Such findings could have potent implications for new immunotherapeutic strategies in patients with AML. PMID- 29030253 TI - Polymorphisms in the TFAM and PGC1-alpha genes and their association with polycystic ovary syndrome among South Indian women. AB - We investigated the link between polymorphisms in genes involved in mitochondrial biogenesis, mitochondrial transcription factor A (TFAM) and Peroxisome proliferator activated receptor gamma coactivator-1 alpha (PGC-1alpha) and further studied the role of these genes on the pathophysiology of polycystic ovary syndrome (PCOS). This case-control study was carried out in 118 PCOS cases and 110 controls. In the present study we genotyped three polymorphisms of PGC1 alpha gene (rs8192678-Gly482Ser, rs13131226 and rs2970856) and polymorphism of TFAM gene (rs1937-+35G/C) by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. In addition, to better understand genetic contributions to the pathophysiology of PCOS, mtDNA copy number (MCN) was quantified using a qRT-PCR assay in the subjects. The results revealed that the distribution of genotypes and allele frequency of the PGC-1alpha Gly482Ser polymorphism in PCOS patients was statistically significant from those of the control group respectively (OR-2.488; 95% CI-1.0673 to 5.7998; P=0.047), (OR 1.6091; 95% CI-1.0955 to 2.3634; P=0.015) indicating that the presence of 'A' allele might confer risk to PCOS. Patients with the 'AA' genotype showed significantly lower levels of MCN compared with patients with other genotypes. In addition, patients carrying CT genotype of PGC1-alpha rs2970856 demonstrated significantly higher levels of LH (P=0.030) than TT and CC genotypes. In conclusion, our study indicates that carriers of the PGC-1alpha rs8192678 'Ser' allele have increased risk of developing PCOS. PMID- 29030254 TI - Complete structure and variation of the chloroplast genome of Agropyron cristatum (L.) Gaertn. AB - Agropyron cristatum (L.) Gaertner, a perennial grass in the tribe Triticeae (Poaceae), is a wild relative of cereal crops that is suitable for genetic improvement. In this study, we first sequenced the complete chloroplast (cp) genome of Ag. cristatum using Hiseq4000 PE150. The Ag. cristatum chloroplast genome is 135,554bp in length, has a typical quadripartite structure and contains 76 protein-coding genes, 29 tRNA genes and four rRNA genes. The cp genome of Ag. cristatum was used for comparison with other seven Triticeae species. One large variable region (800bp), which primarily contained the rpl23 (non-reciprocally translocated from IRs) and accD genes, was detected between rbcL gene and psaI gene within LSC region. The deletion of the accD and translocated rpl23 genes in Ag. cristatum indicated an independent gene-loss events or an additional divergence in Triticeae. Analyses of the dn/ds ratio and K2-P's genetic distance for 76 protein-coding genes showed that genes with evolutionary divergence might suffer from the effect of sequence regional constraints or gene functional constraints in Triticeae species. Our research will generally contribute to the knowledge of plastid genome evolution in Triticeae. PMID- 29030255 TI - Molecular cloning and characterization of secretory carbonic anhydrase VI in pufferfish (Takifugu rubripes). AB - Carbonic anhydrase VI (CA VI) has been characterized as a secretory isozyme in mammals. Our present study confirmed the occurrence of CA VI in pufferfish (Takifugu rubripes). In this study, genomic sequence information for the CA VI of pufferfish was used for molecular cloning. We cloned a 1821 bp cDNA sequence, which consisted of a complete coding sequence of 1623bp and a deduced amino acid sequence of 540 amino acids from the open reading frame. A BLAST search indicated that this protein exhibits 53%, 79%, and 67% identity with human, tilapia, and gar CA VI, respectively. It also shows 63%-77% identity with other fish CA VI like sequences (zebrafish, Asian arowana, salmon, and large yellow croaker). Moreover, alignment of two or more sequences revealed that the protein sequence of pufferfish CA VI has 34%-37% identity with mammalian and fish CA II sequences. An NH2-terminal signal peptide of 18 amino acids in length was predicted in the pufferfish CA VI sequence. Three potential N-linked glycosylation sites and two cysteine residues (Cys-28 and Cys-209) that are likely to form one disulfide bond were present in pufferfish CA VI. In silico and phylogenetic analyses revealed that pufferfish CA VI is an extracellular secretory protein. Active site analysis indicated that this protein is a low-activity CA isozymes due to a characteristic Val/Ile substitution at position 207. Homology modeling of puffer CA VI was performed using the crystal structure of human carbonic anhydrase XIV as a template structure, based on high similarity. Reverse transcription-polymerase chain reaction (PCR), quantitative PCR and in situ hybridization results revealed that, the pufferfish CA VI is highly expressed in liver tissue. PMID- 29030256 TI - Ficus virens proanthocyanidins induced apoptosis in breast cancer cells concomitantly ameliorated 5-fluorouracil induced intestinal mucositis in rats. AB - 5-Fluorouracil (5-FU) is a commonly used chemotherapeutic agent for breast cancer. However, its use often leads to drug resistance and mucositis. This study aimed to investigate whether proanthocyanidins from Ficus virens possessed anti breast cancer and anti-mucositis activities. The results showed that the cytotoxic effects of the proanthocyanidins against MDA-MB-231 and MCF-7 breast cancer cells were in the order of stem barks proanthocyanidins (SPAs) > leaves proanthocyanidins > fruits proanthocyanidins. Moreover, SPAs induced apoptosis in both cell lines which were accompanied with an increase in loss of mitochondrial membrane potential, production of reactive oxygen species, Bax to Bcl-2 protein expression ratio, and activated caspase 3. Furthermore, intraperitoneal injection of 5-FU (150 mg/kg body weight) resulted in body weight loss and jejunal injury in the rats while administration of SPAs (100 mg/kg body weight) counteracted these changes. Collectively, our study demonstrated that SPAs induced apoptosis cell death in breast cancer cells while ameliorating the symptoms of intestinal mucositis in rats.Therefore, SPAs merits further exploration as a potential therapeutic agent for breast cancer and chemotherapy-induced mucositis. PMID- 29030257 TI - RIFM fragrance ingredient safety assessment, 2-pentylcyclopentan-1-one, CAS Registry Number 4819-67-4. PMID- 29030258 TI - RIFM fragrance ingredient safety assessment, menthyl acetate (isomer unspecified), CAS Registry Number 16409-45-3. PMID- 29030259 TI - RIFM fragrance ingredient safety assessment, dihydro-beta-ionol, cas registry number 3293-47-8. PMID- 29030260 TI - Cyanidin-3-O-glucoside promotes the biosynthesis of progesterone through the protection of mitochondrial function in Pb-exposed rat leydig cells. AB - Cyanidin-3-O-glucoside (C3G) is an anthocyanin that has been reported to reduce the toxicity of heavy metals. In the present study, the protection effects of C3G on the biosynthesis of progesterone, the precursor of testosterone, against lead (Pb) in R2C rat Leydig cells were examined. Treatment of R2C cells with 100 MUM Pb resulted in a significant decrease in progesterone production. After being cultured in a medium containing C3G and Pb, R2C cells exhibited an increase in progesterone concentration compared with the Pb treatment, as a result of up regulation of the expression of the steroidogenic enzymes steroidogenic acute regulatory protein (StAR), 3beta-hydroxysteroid dehydrogenase (3beta-HSD) and cytochrome P450 enzyme cholesterol side chain cleavage enzyme (CYP11A1). Pb induced inhibition of extracellular regulated Kinase 1/2 (ERK 1/2) phosphorylation and down-regulation of protein kinase A (PKA) expression were alleviated by C3G. In addition, Pb-induced reactive oxygen species (ROS) overproduction led to mitochondrial depolarization, resulting in a decrease in progesterone biosynthesis, while C3G intervention reduced the ROS level and increased progesterone production. In conclusion, C3G may alleviate the Pb induced decrease of progesterone biosynthesis by modulating the dysfunction of mitochondria, including decreasing oxidative stress and regulating expression of steroidogenic enzyme proteins. PMID- 29030261 TI - RIFM fragrance ingredient safety assessment, alpha-Isobutylphenethyl alcohol, CAS Registry Number 7779-78-4. PMID- 29030262 TI - Combining actigraphy, ecological momentary assessment and neuroimaging to study apathy in patients with schizophrenia. AB - BACKGROUND: Apathy can be defined as a reduction of goal-directed behavior and is a strong predictor for poor functional outcome in schizophrenia. However, no objective measure of apathy has been identified and assessment is limited to retrospective interview-based ratings. Here we aimed to identify more precise objective readouts of apathy for translational research and clinical practice. METHODS: We employed a combined approach including interview-based ratings of the two negative symptom factors apathy and diminished expression, actigraphy based measures of spontaneous motor activity and the evaluation of daily activities using ecological momentary assessment. Furthermore, a functional magnetic resonance imaging task for reward anticipation was applied to investigate shared and divergent neural correlates of interview-based and behaviorally measured apathy. RESULTS: We found in 18 schizophrenia patients with high interview-based apathy levels that motor activity was negatively correlated with apathy but not with diminished expression. In contrast, measures of daily activities were not associated with apathy. Neural activation during reward anticipation revealed an association between hypoactivation of the ventral striatum and interview-based apathy as well as hypoactivation of the inferior frontal gyrus and motor activity level. CONCLUSIONS: Spontaneous motor activity is an objective readout of apathy, which was specific and not present for diminished expression. On a neural level, interview-based and objective measures of apathy showed divergent neural correlates in the cortical-striatal network, which suggests dissociable neural processes. Finally, motor activity provides a promising readout for quantifying apathy in both translational research and clinical practice. PMID- 29030263 TI - The role of endemic plants in Mauritian traditional medicine - Potential therapeutic benefits or placebo effect? AB - ETHNOPHARMACOLOGICAL RELEVANCE: The Mauritian endemic flora has been recorded to be used as medicines for nearly 300 years. Despite acceptance of these endemic plants among the local population, proper documentation of their therapeutic uses is scarce. This review aims at summarising documented traditional uses of Mauritian endemic species with existing scientific data of their alleged bioactivities, in a view to appeal for more stringent validations for their ethnomedicinal uses. MATERIAL AND METHODS: A comprehensive bibliographic investigation was carried out by analysing published books on ethnopharmacology and international peer-reviewed papers via scientific databases namely ScienceDirect and PubMed. The keywords "Mauritius endemic plants" and "Mauritius endemic medicinal plants" were used and articles published from 1980 to 2016 were considered. 675 works of which 12 articles were filtered which documented the ethnomedicinal uses and 22 articles reported the biological activities of Mauritian endemic plants. Only materials published in English or French language were included in the review. Available data on the usage of Mauritian endemic plants in traditional medicine and scientific investigation were related. RESULTS AND DISCUSSION: We documented 87 taxa of Mauritian endemic plants for their medicinal value. Endemic plants are either used as part of complex herbal formulations or singly, and are prescribed by herbalists to mitigate a myriad of diseases from metabolic disorders, dermatological pathologies, arthritis to sexually transmissible diseases. However, these species have undergone a limited consistent evaluation to validate their purported ethnomedicinal claims. As the World Health Organization Traditional Medicine Strategy 2014-2023 emphasises on moving traditional medicine into mainstream medicine on an equally trusted footage, the re-evaluation and modernization of Mauritius cultural heritage become necessary. CONCLUSIONS: With a consumer-driven 'return to nature', scientific validation and valorization of the herbal remedies, including efficacy and safety are, therefore, important. This review reports the scarcity of research on validating the efficacy and safety of medicinal endemic plants. This calls for the use of optimised methodologies to investigate the claims of therapeutic effects resulting from the use of these traditional medicines. PMID- 29030264 TI - Exploring the effect of parental influence on children's physical activity: The mediating role of children's perceptions of parental support. AB - The purpose of this study was to test a conceptual model linking parental support and parental physical activity (PA), with children's perception of parental support and children's PA. Baseline data were drawn from the Grade 5 ACT-i-Pass community-based PA intervention conducted in London, Ontario between May and October 2014. Parent and child PA were measured using the International Physical Activity Questionnaire and Physical Activity Questionnaire for Children, respectively. Questions pertaining to parental support and children's perception of that parental support were obtained via questionnaires. We employed structural equation modeling techniques to test the conceptual model. In total, 467 boys and 469 girls were included in the study. The model provided an acceptable model fit. Child's perception of parental support for PA had a positive effect on boys' (b=0.319) and girls' (b=0.326) PA. Parental PA was not significantly related to child's perception of parental support for PA. However, parent reported support for PA had a significant, positive effect on child's perception of parental support for boys (b=0.352) and girls (b=0.584). In terms of the indirect effects, the effect of parental PA on child's PA was not statistically significant; however, as expected, parental support for PA had a statistically significant indirect effect on child PA level in both groups. The findings of this study demonstrate the importance of children's perceptions of parental support in relation to their PA behaviours. Developing a better understanding of factors related to children's PA and identifying determinants and mediators of activity behaviours will help inform PA interventions. PMID- 29030265 TI - Associations of active commuting with body fat and visceral adipose tissue: A cross-sectional population based study in the UK. AB - The promotion of active travel (walking and cycling) is one promising approach to prevent the development of obesity and related cardio-metabolic disease. However the associations between active travel and adiposity remain uncertain. We used the Fenland study (a population based-cohort study; Cambridgeshire, UK, 2005-15) to describe the association of commuting means with DEXA measured body fat and visceral adipose tissue (VAT) among commuters (aged 29-65years; n=7680). We stratified our sample into those living near (within five miles) and far (five miles or further) from work, and categorised commuting means differently for each group reflecting their different travel options. Associations were adjusted for age, education, Mediterranean diet score, smoking, alcohol consumption, test site and either self-reported physical activity or objective physical activity. Among those living near to work, people who reported regularly cycling to work had lower body fat than those who only used the car (adjusting for self-reported physical activity: women, -1.74%, 95% CI: -2.27% to -0.76%; men, -1.30%, -2.26% to -0.33%). Among those who lived far from work, people who reported regular car use with active travel had lower body fat (women; -1.18%, 95% CI: -2.23% to 0.13%; men, -1.19%, -1.93% to -0.44%). Findings were similar for VAT and when adjusting for objectively measured physical activity instead of self-reported physical activity. In conclusion, active commuting may reduce adiposity and help prevent related cardio-metabolic disease. If people live too far from work to walk or cycle the whole journey, incorporating some active travel within the commute is also beneficial. PMID- 29030266 TI - Plasmid-mediated doxycycline resistance in a Yersinia pestis strain isolated from a rat. AB - The emergence of antibiotic-resistant Yersinia pestis strains represents a public health concern. Two antibiotic-resistant Y. pestis strains isolated from Madagascar have been previously identified and characterised. Both strains carried conjugative plasmids that conferred resistance to streptomycin or to multiple antibacterial drugs, respectively. Here we characterised a novel Y. pestis strain (IP2180H) that exhibited resistance to doxycycline. This strain was isolated from a rat in Antananarivo (Madagascar) in 1998. Resistance was carried by a conjugative plasmid (pIP2180H) homologous to pB71 from Salmonella enterica. The plasmid of the previously identified streptomycin-resistant Y. pestis strain was also sequenced and it was found that the three antibiotic resistance Y. pestis plasmids sequenced until now are genetically unrelated and are also unrelated to multidrug resistance plasmids from the phylogenetically close bacterial species Yersinia pseudotuberculosis. The fact that the three antibiotic resistant Malagasy Y. pestis strains were isolated from different hosts, at different times, from distant locations, and carried unrelated plasmids indicates independent horizontal acquisition of genetic material and further demonstrates the capacity of Y. pestis to acquire antibiotic resistance plasmids under natural conditions. Since these resistance plasmids can frequently carry or easily trap antibiotic resistance cassettes, the emergence of new multidrug-resistant Y. pestis strains may be expected and would represent a major health threat. PMID- 29030267 TI - Effects of pex1 disruption on wood lignin biodegradation, fruiting development and the utilization of carbon sources in the white-rot Agaricomycete Pleurotus ostreatus and non-wood decaying Coprinopsis cinerea. AB - Peroxisomes are well-known organelles that are present in most eukaryotic organisms. Mutant phenotypes caused by the malfunction of peroxisomes have been shown in many fungi. However, these have never been investigated in Agaricomycetes, which include white-rot fungi that degrade wood lignin in nature almost exclusively and play an important role in the global carbon cycle. Based on the results of a forward genetics study to identify mutations causing defects in the ligninolytic activity of the white-rot Agaricomycete Pleurotus ostreatus, we report phenotypes of pex1 disruptants in P. ostreatus, which are defective in two major features of white-rot Agaricomycetes: lignin biodegradation and mushroom formation. Pex1 disruption was also shown to cause defects in the hyphal growth of P. ostreatus on certain sawdust and minimum media. We also demonstrated that pex1 is essential for fruiting initiation in the non-wood decaying Agaricomycete Coprinopsis cinerea. However, unlike P. ostreatus, significant defects in hyphal growth on the aforementioned agar medium were not observed in C. cinerea. This result, together with previous C. cinerea genetic studies, suggests that the regulation mechanisms for the utilization of carbon sources are altered during the evolution of Agaricomycetes or Agaricales. PMID- 29030268 TI - Topical vancomycin to reduce surgical-site infections in neurosurgery: Study protocol for a multi-center, randomized controlled trial. AB - Surgical-site infections (SSIs) account for 20% of all healthcare-associated infections, are the most common nosocomial infection among surgical patients, and are a focus of quality improvement initiatives. Despite implementation of many quality care measures (e.g. prophylactic antibiotics), SSIs remain a significant cause of morbidity, mortality, and economic burden, particularly in the field of neurosurgery. Topical vancomycin is increasingly utilized in instrumented spinal and cardiothoracic procedures, where it has been shown to reduce the risk of SSIs. However, a randomized controlled trial assessing its efficacy in the general neurosurgical population has yet to be done. The principle aim of "Topical Vancomycin for Neurosurgery Wound Prophylaxis" (NCT02284126) is to determine whether prophylactic, topical vancomycin reduces the risk of SSIs in the adult neurosurgical population. This prospective, multicenter, patient blinded, randomized controlled trial will enroll patients to receive the standard of care plus topical vancomycin, or the standard of care alone. The primary endpoint of this study is a SSI by postoperative day (POD) 30. Patients must be over 18years of age. Patients are excluded for renal insufficiency, vancomycin allergy, and some ineligible procedures. Univariate analysis and logistic regression will determine the effect of topical vancomycin on SSIs at 30days. A randomized controlled trial is needed to determine the efficacy of this treatment. Results of this trial are expected to directly influence the standard of care and prevention of SSIs in neurosurgical patients. PMID- 29030269 TI - The importance of inclusion of kinetic information in the extrapolation of high to-low concentrations for human limit setting. AB - Human health risk assessment of inhalation exposures generally includes a high-to low concentration extrapolation. Although this is a common step in human risk assessment, it introduces various uncertainties. One of these uncertainties is related to the toxicokinetics. Many kinetic processes such as absorption, metabolism or excretion can be subject to saturation at high concentration levels. In the presence of saturable kinetic processes of the parent compound or metabolites, disproportionate increases in internal blood or tissue concentration relative to the external concentration administered may occur resulting in nonlinear kinetics. The present paper critically reviews human health risk assessment of inhalation exposure. More specific, it emphasizes the importance of kinetic information for the determination of a safe exposure in human risk assessment of inhalation exposures assessed by conversion from a high animal exposure to a low exposure in humans. For two selected chemicals, i.e. methyl tert-butyl ether and 1,2-dichloroethane, PBTK-modelling was used, for illustrative purposes, to follow the extrapolation and conversion steps as performed in existing risk assessments for these chemicals. Human health-based limit values based on an external dose metric without sufficient knowledge on kinetics might be too high to be sufficiently protective. Insight in the actual internal exposure, the toxic agent, the appropriate dose metric, and whether an effect is related to internal concentration or dose is important. Without this, application of assessment factors on an external dose metric and the conversion to continuous exposure results in an uncertain human health risk assessment of inhalation exposures. PMID- 29030270 TI - Preliminary data on citrinin kinetics in humans and their use to estimate citrinin exposure based on biomarkers. AB - Citrinin (CIT), a fungal metabolite causing nephrotoxicity, has a tolerable daily intake (TDI) value of 0.2MUg/kg bw. Contamination of food with CIT is not sufficiently known to allow dietary exposure assessment. Urinary biomonitoring data are available from cohorts of several countries. However, kinetic information is lacking for CIT, hampering the use of urinary biomonitoring data to estimate the daily intake. We have investigated the kinetics of CIT after oral intake in two human volunteers on two occasions. Urinary excretion showed that ingested CIT undergoes conversion to dihydro-citrinone (DH-CIT) which is then excreted in the urine along with parent compound. The cumulative urinary excretion within 24h was between 32.9% and 70.8% (median 40.2%) of the sum of CIT and DH-CIT ('total CIT'). The median half-life in urine was 6.7h for CIT and 8.9h for DH-CIT. The median half-life in plasma accounted to 9.4h. The daily urinary excretion for 'total CIT' served to estimate a provisional daily CIT intake using published urine biomarker data in several cohorts. European cohorts had an exposure well below the TDI whereas in Bangladesh the exposure in one cohort exceeded the TDI. PMID- 29030271 TI - NOAEL-dose of a neonicotinoid pesticide, clothianidin, acutely induce anxiety related behavior with human-audible vocalizations in male mice in a novel environment. AB - Neonicotinoids are novel systemic pesticides acting as agonists on the nicotinic acetylcholine receptors (nAChRs) of insects. Experimental studies have revealed that neonicotinoids pose potential risks for the nervous systems of non-target species, but the brain regions responsible for their behavioral effects remain incompletely understood. This study aimed to assess the neurobehavioral effects of clothianidin (CTD), a later neonicotinoid developed in 2001 and widely used worldwide, and to explore the target regions of neonicotinoids in the mammalian brain. A single-administration of 5 or 50mg/kg CTD to male C57BL/6N mice at or below the no-observed-adverse-effect level (NOAEL) induced an acute increase in anxiety during the elevated plus-maze test. In addition, mice in the CTD administered group spontaneously emitted human-audible vocalizations (4-16kHz), which are behavioral signs of aversive emotions, and showed increased numbers of c-fos immunoreactive cells in the paraventricular thalamic nucleus and dentate gyrus of the hippocampus. In conclusion, mice exposed to NOAEL-dose CTD would be rendered vulnerable to a novel environment via the activation of thalamic and hippocampal regions related to stress responses. These findings should provide critical insight into the neurobehavioral effects of neonicotinoids on mammals. PMID- 29030272 TI - Impact of fasting followed by short-term exposure to interleukin-6 on cytochrome P450 mRNA in mice. AB - The gene expression of the cytochrome P450 (CYP) enzyme family is regulated by numerous factors. Fasting has been shown to induce increased hepatic CYP mRNA in both humans and animals. However, the coordinated regulation of CYP, CYP regulating transcription factors, and transcriptional co-factors in the liver linking energy metabolism to detoxification has never been investigated. Interleukin-6 (IL-6) has been suggested to be released during fasting and has been shown to regulate CYP expression. The present study investigated the hepatic mRNA content of selected CYP, AhR, CAR, PXR and PPARalpha in mice fasted for 18h and subsequently exposed to IL-6. Furthermore, the impact of fasting on PGC 1alpha, HNF-4alpha, SIRT1 and SIRT3 mRNA was examined. Fasting induced a marked increase in Cyp2b10, Cyp2e1 and Cyp4a10 mRNA, while CYP1a1, Cyp1a2, Cyp2a4 and Cyp3a11 mRNA levels remained unchanged. In accordance, the mRNA levels of CAR and PPARalpha were also increased with fasting. The PGC-1alpha, SIRT1 and SIRT3 mRNA levels were also increased after fasting, while the HNF-4alpha mRNA levels remained unchanged. In mice subjected to IL-6 injection, the fasting-induced PXR, PPARalpha and PGC-1alpha mRNA responses were lower than after saline injection. In conclusion, fasting was demonstrated to be a strong inducer of hepatic CYP mRNA as well as selected transcription factors controlling the expression of the investigated CYP. Moreover, the mRNA levels of transcriptional co-factors acting as energy sensors and co-factors for CYP regulation was also increased in the liver, suggesting crosstalk at the molecular level between regulation of energy metabolism and detoxification. PMID- 29030273 TI - Heterologous production of myxobacterial alpha-pyrone antibiotics in Myxococcus xanthus. AB - Myxopyronins (MXN) and corallopyronins (COR) are structurally related alpha pyrone antibiotics from myxobacteria that represent a highly promising compound class for the development of broad-spectrum antibacterial therapeutic agents. Their ability to inhibit RNA polymerase through interaction with the "switch region", a novel target, distant from previously characterized RNA polymerase inhibitors (e.g. rifampicin), makes them particularly promising candidates for further research. To improve compound supply for further investigation of MXN, COR and novel derivatives of these antibacterial agents, establishment of an efficient and versatile microbial production platform for myxobacterial alpha pyrone antibiotics is highly desirable. Here we describe design, construction and expression of a heterologous production and engineering platforms for MXN and COR to facilitate rational structure design and yield improvement approaches in the myxobacterial host strain Myxococcus xanthus DK1622. Optimization of the cultivation medium yielded significantly higher production titers of MXN A at around 41-fold increase and COR A at around 25-fold increase, compared to the standard CTT medium. PMID- 29030274 TI - Predicting novel substrates for enzymes with minimal experimental effort with active learning. AB - Enzymatic substrate promiscuity is more ubiquitous than previously thought, with significant consequences for understanding metabolism and its application to biocatalysis. This realization has given rise to the need for efficient characterization of enzyme promiscuity. Enzyme promiscuity is currently characterized with a limited number of human-selected compounds that may not be representative of the enzyme's versatility. While testing large numbers of compounds may be impractical, computational approaches can exploit existing data to determine the most informative substrates to test next, thereby more thoroughly exploring an enzyme's versatility. To demonstrate this, we used existing studies and tested compounds for four different enzymes, developed support vector machine (SVM) models using these datasets, and selected additional compounds for experiments using an active learning approach. SVMs trained on a chemically diverse set of compounds were discovered to achieve maximum accuracies of ~80% using ~33% fewer compounds than datasets based on all compounds tested in existing studies. Active learning-selected compounds for testing resolved apparent conflicts in the existing training data, while adding diversity to the dataset. The application of these algorithms to wide arrays of metabolic enzymes would result in a library of SVMs that can predict high-probability promiscuous enzymatic reactions and could prove a valuable resource for the design of novel metabolic pathways. PMID- 29030275 TI - Metabolite damage and repair in metabolic engineering design. AB - The necessarily sharp focus of metabolic engineering and metabolic synthetic biology on pathways and their fluxes has tended to divert attention from the damaging enzymatic and chemical side-reactions that pathway metabolites can undergo. Although historically overlooked and underappreciated, such metabolite damage reactions are now known to occur throughout metabolism and to generate (formerly enigmatic) peaks detected in metabolomics datasets. It is also now known that metabolite damage is often countered by dedicated repair enzymes that undo or prevent it. Metabolite damage and repair are highly relevant to engineered pathway design: metabolite damage reactions can reduce flux rates and product yields, and repair enzymes can provide robust, host-independent solutions. Herein, after introducing the core principles of metabolite damage and repair, we use case histories to document how damage and repair processes affect efficient operation of engineered pathways - particularly those that are heterologous, non-natural, or cell-free. We then review how metabolite damage reactions can be predicted, how repair reactions can be prospected, and how metabolite damage and repair can be built into genome-scale metabolic models. Lastly, we propose a versatile 'plug and play' set of well-characterized metabolite repair enzymes to solve metabolite damage problems known or likely to occur in metabolic engineering and synthetic biology projects. PMID- 29030276 TI - Dental occlusal-surface-supported titanium guide to assist cutting and drilling in mandibular bilateral sagittal split osteotomy. AB - INTRODUCTION: Cutting and drilling guides manufactured using computer-aided design/computer-aided manufacturing (CAD/CAM) technologies have attracted increasing interest in orthognathic surgery, particularly in complex cases. The development of these guides requires virtual surgery planning and three dimensional modelling before they can be printed in titanium, polyamide or resin. We report the use of a personalized titanium device to assist bilateral sagittal split osteotomy (BSSO) with or without genioplasty combined with individual implants for repositioning and fixation. This one-piece guide for both sides of the BSSO allows the initiation of cutting and drilling with less invasive drill placement and greater accuracy. PROCEDURE: The titanium guide was manufactured using CAD/CAM technologies after conventional digital planning of BSSO. Intraoperatively, the guide was fitted on each side of the mandibular occlusal surface and screwed to predesigned drill holes. The guide facilitates the predrilling of screw holes and the initiation of cutting for buccal, lingual and external oblique ridge corticotomy using a piezosurgery device. CONCLUSION: Based on our experience, we think that this guide is a promising new tool to assist BSSO. It helped limit the extent of tissue detachment required and provided the strength necessary for accurate bone cutting and drilling. It also allowed the accurate fixation of preformed plates to obtain occlusion as per virtual planning. PMID- 29030277 TI - Isolated unilateral temporalis muscle hypertrophy: First case in an 8-year-old boy and review. AB - INTRODUCTION: Isolated unilateral temporalis muscle hypertrophy (IUTMH) was first described in 1990 and few cases have been published since then. This disease occurs mainly in adults. There is no clear etiology of IUTMH, but bruxism is one of the risk factors. Only two cases have been described before the age of 20 years. To our knowledge, no cases have been described in persons younger than 15 years old. We report the first case of IUTMH in an 8-year-old and review the literature. MATERIAL AND METHODS: This section is separated into 3 parts: (1) search for and description of clinical cases of IUTMH in our department; (2) literature search to find similar cases; (3) data analysis of all cases found. RESULTS: Ten patients, including our case, were found over a period of 23 years: five females and five males with a mean age of 32.8 years. One patient was 15 years old. Time between onset and diagnosis was 16.7 months. Half of the patients reported pain and three had experienced bruxism. Most of the patients had non surgical treatment. One patient evolved favorably with no treatment. One recurrence occurred 10 years later. DISCUSSION: IUTMH can occur in childhood in a high-stress environment. Diagnosis is based on the history and clinical and imaging findings. Biopsy helps to confirm the diagnosis, but electromyograms and neurological tests contribute little. Bruxism should be taken into account. The treatment with the least inconvenience must be given. PMID- 29030278 TI - Maxillofacial Mazabraud's syndrome: A case report & review. AB - Mazabraud's syndrome is characterized by myxomas of intramuscular type present in association with fibrous dysplasia. Up to this day, approximately 80 cases of Mazabraud's syndrome have been reported, although in the head and neck territory intramuscular myxoma reports in association with fibrous dysplasia of the bone are very scarce. An unusual case of Mazabraud's syndrome in a 63 years old female displaying fibrous dysplasia of the mandible and soft tissue myxoma in the edentulous alveolar ridge in the molar area is reported. After four years of follow-up, the clinical, imagenological and microscopical findings that led to the diagnosis and treatment are discussed. This report exemplifies the diagnostic and treatment challenge of this rare disease and enhances our clinical knowledge due to its long follow-up, highlighting the need of understanding better its behavior in order to establish proper guidelines for its treatment. PMID- 29030279 TI - Posterior cranial vault distraction osteogenesis in craniofacial surgery: Technical note. AB - INTRODUCTION: Posterior cranial vault distraction is a treatment for intracranial hypertension in certain cases of craniosynostosis and faciocraniosynostosis. It allows the harmonization of the skull back and prevents turricephaly. This study presents the surgical technique. TECHNICAL NOTE: Posterior cranial vault distraction osteogenesis consists of a circular osteotomy of the skull back. Four distractors are placed on the cranial flap without detachment of the dura mater. The distraction is carried out over nearly 1 month with an objective of 20mm. The technique's effectiveness is judged on the correction of the skull back shape and the disappearance of clinical and radiological signs of intracranial hypertension. DISCUSSION: Posterior cranial vault distraction osteogenesis enables a large increase in cranial volume and a correction of the dysmorphic skull back. This easy surgery and the low rate of complications make this technique a main surgical approach in the management of faciocraniosynostosis. PMID- 29030281 TI - Disc repositioning plus temporal eminectomy for temporomandibular joint internal derangement: A pilot study. AB - INTRODUCTION: Temporomandibular joint internal derangement is a common disorder, which usually resolves with conservative management. However, 5% of patients require surgery and although many techniques have been described, a gold standard surgical procedure has not yet been established. OBJECTIVES: The aim of this study was to compare the clinical outcome of disc repositioning plus temporal eminectomy versus disc repositioning alone, for the treatment of temporomandibular joint internal derangement. METHODOLOGY: Matched case-control retrospective pilot study. Records of patients diagnosed with temporomandibular joint internal derangement from January 2010 to December 2015 were studied. Eleven patients treated with disc repositioning plus temporal eminectomy for the case group and 11 patients treated with disc repositioning alone for the age- and gender-matched control group. RESULTS: No difference was found in terms of pain, noise or blockage with the maximum oral opening between the groups at the first or sixth month after surgery. However, there were differences in movement restriction at the first and sixth month after surgery, in favor of the temporal eminectomy group. These differences were statistically significant only at the sixth month after surgery (P: 0.03). CONCLUSIONS: Our results suggest that disc repositioning plus temporal eminectomy could be a short-term benefit in terms of mobility and oral opening. However, larger samples and prospective trials will be necessary to corroborate the current findings. PMID- 29030280 TI - Mobilization of malpositioned dental implant using segmental osteotomy: A case report. AB - By increasing the number of replaced tooth with dental implants, the number of poorly positioned implants is also increased. In this article, we present our experience about a 48-year-old female who was referred to our department for resolving prosthetic problem regarding two malpositioned implants inserted in the upper jaw. The interocclusal space was insufficient and the two adjacent implants had excessive buccal angulation. To overcome these problems, segmental osteotomy of the alveolar bone containing two implants has been done. After palatal and apical repositioning of the bone block, rigid fixation was performed using a 4 hole miniplate and four 5mm monocortical screws. Two weeks after the procedure, a conventional fixed prosthesis was constructed with regard to the esthetic and functional aspects. During the two-year follow-up, the patient was satisfied with the result and there were no complications, such as alveolar bone necrosis, marginal bone loss, implant failure or infection. PMID- 29030282 TI - Epithelioid hemangioendothelioma, an uncommon tumor of the eyelid: A case report. AB - Epithelioid hemangioendothelioma (EHE) is an infrequent vascular tumor that has an intermediate prognosis between the prognosis of the angioma and that of the angiosarcoma. Its evolution is characterized by a tendency to recurrence and metastases. EHE has been reported in locations such as: lungs, liver, bone and soft tissues. There are very few reports of cases involving the head and neck region. The occurrence of EHE in the orbital region and/or the eyelid is extremely rare. The authors report a case of EHE in the right upper eyelid. Surgical excision has been performed resulting in a good local control of the disease after a 5-year follow up. PMID- 29030283 TI - Logistics of Three-dimensional Printing: Primer for Radiologists. AB - The Association of University Radiologists Radiology Research Alliance Task Force on three-dimensional (3D) printing presents a review of the logistic considerations for establishing a clinical service using this new technology, specifically focused on implications for radiology. Specific topics include printer selection for 3D printing, software selection, creating a 3D model for printing, providing a 3D printing service, research directions, and opportunities for radiologists to be involved in 3D printing. A thorough understanding of the technology and its capabilities is necessary as the field of 3D printing continues to grow. Radiologists are in the unique position to guide this emerging technology and its use in the clinical arena. PMID- 29030284 TI - Structured Reporting in Radiology. AB - Radiology reports are vital for patient care as referring physicians depend upon them for deciding appropriate patient management. Traditional narrative reports are associated with excessive variability in the language, length, and style, which can minimize report clarity and make it difficult for referring clinicians to identify key information needed for patient care. Structured reporting has been advocated as a potential solution for improving the quality of radiology reports. The Association of University Radiologists-Radiology Research Alliance Structured Reporting Task Force convened to explore the current and future role of structured reporting in radiology and summarized its finding in this article. We review the advantages and disadvantages of structured radiology reports and discuss the current prevailing sentiments among radiologists regarding structured reports. We also discuss the obstacles to the use of structured reports and highlight ways to overcome some of those challenges. We also discuss the future directions in radiology reporting in the era of personalized medicine. PMID- 29030285 TI - Clinical Applications of 3D Printing: Primer for Radiologists. AB - Three-dimensional (3D) printing refers to a number of manufacturing technologies that create physical models from digital information. Radiology is poised to advance the application of 3D printing in health care because our specialty has an established history of acquiring and managing the digital information needed to create such models. The 3D Printing Task Force of the Radiology Research Alliance presents a review of the clinical applications of this burgeoning technology, with a focus on the opportunities for radiology. Topics include uses for treatment planning, medical education, and procedural simulation, as well as patient education. Challenges for creating custom implantable devices including financial and regulatory processes for clinical application are reviewed. Precedent procedures that may translate to this new technology are discussed. The task force identifies research opportunities needed to document the value of 3D printing as it relates to patient care. PMID- 29030286 TI - Peptides Acting as Cognitive Enhancers. AB - The aim of this paper is to present an overview of three peptides that, by improving synaptic function, enhance learning and memory in laboratory rodents. We summarize their structure, their mechanisms of action, and their effects on synaptic and cognitive function. First we describe FGL, a peptide derived from the neural cell adhesion molecule which improves cognition by the activation of the PKC pathway that triggers an activity-dependent delivery of AMPA receptors to the synapses. Then we describe PTD4-PI3KAc peptide that by activating PI3K signaling pathway it promotes synapse and spine formation and enhances hippocampal dependent memory. Lastly, we describe a new peptide derived from the well-known tumor suppressor PTEN that prevents pathological interactions between PTEN and PDZ proteins at synapses during exposure to Amyloid beta. This action prevents memory deterioration in mouse model of Alzheimer's disease. Together, this review indicates how learning and memory can be improved by manipulating synaptic function and number through pharmacological treatment with peptides, and it establishes synaptic function as a valid target for cognitive enhancement. PMID- 29030287 TI - Inhibition of Pain and Pain-Related Brain Activity by Heterotopic Noxious Counter Stimulation and Selective Attention in Chronic Non-Specific Low Back Pain. AB - The aim of the present study was to assess inhibition of pain and somatosensory evoked potentials (SEPs) by heterotopic noxious counter-stimulation (HNCS) and by selective attention in patients with chronic non-specific LBP. Seventeen patients and age/sex-matched controls were recruited (10 men, 7 women; mean age +/- SD: 43.3 +/- 10.4 and 42.7 +/- 11.1, respectively). On average, patients with LBP reported pain duration of 7.6 +/- 6.5 years, light to moderate disability (19.3 +/- 5.7/100) and low clinical pain intensity (21.8 +/- 1.5/100), while pain catastrophizing, state and trait anxiety and depressive symptoms were not significantly different between groups (all p's >0.05). HNCS and selective attention had differential inhibitory effects on pain and SEP, but no difference was observed between groups. Across both groups, HNCS decreased pain (p = 0.06) as well as the N100 and the N150 components of SEP (p's <0.001), while selective attention only decreased pain (p < 0.01) and the N100 (p<0.001). In contrast, the P260 was decreased by HNCS only when attention was directed toward the HNCS stimulus (p<0.01). This indicates that patients with the characteristics described above do not show altered pain inhibitory mechanisms involved in HNCS and selective attention. Importantly, this experiment was carefully designed to control for non-specific effects associated with the repetition of the test stimulus and the effect of an innocuous counter-stimulation. It remains to be determined if these results hold for patients with severe LBP and psychological symptoms or whether symptom severity may be associated with pain inhibition deficits. PMID- 29030288 TI - In vitro characterization of zebrafish (Danio rerio) organic anion transporters Oat2a-e. AB - OATS/Oats are transmembrane proteins that transport a variety of drugs, environmental toxins and endogenous metabolites into the cell. Zebrafish (Danio rerio) has seven OAT orthologs: Oat1, Oat2a-e and Oat3. In this study we specifically address Oat2 (Slc22a7) family. Conserved synteny analysis showed localization of zebrafish oat2 genes on two chromosomes, 11 and 17. All five zebrafish Oats were localized by live cell imaging in membranes of transiently transfected HEK293-T cells, and Oat2a, b, d, and e were confirmed using western blot analysis. Functional studies using the HEK293T cells overexpressing zebrafish Oats revealed two model fluorescent substrates of three Oats: Lucifer yellow for Oat2a and Oat2d (Km 122, and 49.7MUM), and 6-carboxyfluorescein for Oat2b and Oat2d (Km 199.7, and 266.9MUM). The initial screening of a series of diverse endo- and xenobiotics showed interaction with a number of compounds, including cGMP and diclofenac (IC50 27.74, and 19.14MUM) with Oat2a; estrone-3 sulfate and diclofenac (IC50 30.96, and 12.6MUM) with Oat2b; and fumarate and indomethacin (IC50 68.24, and 20.41MUM) with Oat2d. This study provides the first comprehensive data set on Oat2 in zebrafish and offers an important basis for more detailed molecular and (eco)toxicological characterizations of these transporters. PMID- 29030289 TI - Thermal properties of compacted pharmaceutical excipients. AB - Thermal properties of powders are critical material attributes that control temperature rise during tableting and roll compaction. In this study, various analytical methods were used to measure the thermal properties of widely used pharmaceutical excipients including microcrystalline cellulose (MCC) of three different grades (Avicel PH 101; Avicel PH 102 and Avicel DG), lactose and mannitol. The effect of relative density on the measured thermal properties was investigated by compressing the powders into specimen of different relative densities. Differential thermal analysis (DTA) was employed to explore endothermic or exothermic events in the temperature range endured during typical pharmaceutical manufacturing processes, such as tabletting and roll compaction. Thermogravimetric analysis (TGA) was performed to analyse the water/solvent content, either in the form as solvates or as loosely bound molecules on the particle surface. Thermal conductivity analysis (TCA) was conducted to measure thermal conductivity and volumetric heat capacity. It is shown that, for the MCC powders, almost no changes in morphology or structural changes were observed during heating to temperatures up to 200 degrees C. An increase in relative density or temperature leads to a high thermal conductivity and the volumetric heat capacity. Among all MCC powders considered, Avicel DG showed the highest increase in thermal conductivity and the volumetric heat capacity, but this heat capacity was not sensitive to the measurement temperature. For lactose and mannitol, some endothermic events occurred during heating. The thermal conductivity increased with the increase in temperature and relative density. A model was also developed to describe the variation of the thermal conductivity and the volumetric heat capacity with the relative density and the temperature. It was shown that the empirical model can well predict the dependency of the thermal conductivity and the volumetric heat capacity on the relative density and the temperature. PMID- 29030290 TI - Ex vivo evaluation of degradation rates of metronidazole and olsalazine in distal ileum and in cecum: The impact of prandial state. AB - PURPOSE: Evaluate ex vivo the bacterial metabolism induced degradation rates of mesalamine (negative control), metronidazole and olsalazine in distal ileum and in cecum. METHODS: The contents of distal ileum and cecum were collected during colonoscopy under anaerobic conditions from twelve healthy adults in the fasted and in the fed state. To eliminate potential effects of enzymes that may exist in the fluid of lower intestine, each sample was ultracentrifuged and the precipitate was diluted with a volume of normal saline equivalent to that of the supernatant, after ultracentrifugation of intestinal contents from which the specific precipitate had been obtained. Degradation of the three model drugs in individual materials was evaluated anaerobically. RESULTS: Mesalamine was stable in all cases. Degradation rates of metronidazole and olsalazine were higher in cecum than in distal ileum, only in the fasted state; no trend could be observed in the fed state. Degradation rates of metronidazole and olsalazine were decreased in the fed state in the cecum; no trend could be observed in distal ileum. CONCLUSIONS: In the fasted state, bacterial activity is higher in cecum than in distal ileum. Food residues decrease bacterial metabolism degradation rates of drugs in cecum. PMID- 29030291 TI - Evaluation of a Spray-type, Novel Dextrin Hydrogel Adhesion Barrier Under Laparoscopic Conditions in a Porcine Uterine Horn Adhesion Model. AB - STUDY OBJECTIVE: To establish a porcine uterine horn adhesion model that mimicked laparoscopic procedures and use it to investigate the effect of a spray-type, novel dextrin hydrogel adhesion barrier (AdSpray; Terumo Corporation, Tokyo, Japan) on postsurgical adhesions. DESIGN: A single-blind randomized controlled trial (Canadian Task Force Classification I). SETTING: A Certified animal research facility. SUBJECTS: Sixteen female pigs. INTERVENTIONS: All animals underwent laparoscopically assisted adhesion-inducing surgery. The uterine horns and the peritoneum of the pelvic sidewall were injured. In the experimental group, AdSpray was applied to the injured site, and the handling of the sprayer was assessed. At 28 +/- 1 days after surgery, animals were sacrificed, and adhesions at the injured site were evaluated. Uterine horn suture sites were examined under a light microscope to assess healing of the incised wound, the inflammatory reaction, abscess, and the foreign body reaction to the surgical suture. MEASUREMENTS AND MAIN RESULTS: The control group showed severe adhesions over the entire surface interface at the uterine horn suture sites and peritoneal resection site. Compared with the control treatment, AdSpray exhibited a higher percentage of adhesion-free sites (p < .001) and reduced the total adhesion score (p < .001). In the AdSpray group, no inflammation or abscess formation was observed on histopathological examination, and ideal healing of the suture sites was confirmed in all cases. CONCLUSION: Based on the results of the present study, the novel dextrin hydrogel shows excellent adhesion prevention and can be easily applied during laparoscopy using a dedicated sprayer. PMID- 29030292 TI - Multidisciplinary Resection of Deeply Infiltrative Endometriosis. AB - STUDY OBJECTIVE: To describe a multidisciplinary approach for the resection of deeply infiltrative endometriosis using the robotic platform. DESIGN: A technical video showing a step-by-step approach for the resection of deeply infiltrative endometriosis (Canadian Task Force classification level III). Institutional review board approval was not required for this study. SETTING: There is considerable involvement of the bowel and bladder with deeply infiltrative endometriosis [1-3]. The need for operative procedures involving multiple organs while performing a complete resection is common. The benefits of minimally invasive surgery for a gynecologic pathology have been documented in numerous studies. Patients had fewer medical and surgical complications postoperatively, better cosmesis, and better quality of life [4-6]. We believe that deeply infiltrative endometriosis does not preclude patients from having a minimally invasive resection procedure. In this video, we describe how the robotic platform was used for a seamless transition between surgical specialties including gynecology, colorectal, and urology to ensure complete resection of endometriosis lesions involving multiple organs. PATIENT: A 47-year-old woman with a 4-year history of severe pelvic pain, dysuria, dyspareunia, dyschezia, and dysmenorrhea failing multiple medical therapies presented to our clinic to discuss surgical options. After thorough counseling, the decision was made to proceed with definitive surgical management. Postoperatively, the patient was admitted for 2 days of postoperative inpatient care. After meeting all immediate postoperative milestones, she was discharged with an indwelling Foley catheter and instructed to follow up in the clinic with all 3 surgical specialties. At the 1-week interval, she was seen by the urology team; her indwelling catheter was removed after a cystoscopy was performed documenting adequate healing. Two weeks postoperatively, the patient was seen by the gynecology and colorectal teams and was noted to be healing adequately from the procedure. Her six-week visit was also unremarkable. She continued to follow up with the gynecology team for her yearly well-woman examinations and has been symptom free for 2 years after the surgery. She takes norethindrone daily to minimize recurrence. INTERVENTIONS: Preoperative pelvic magnetic resonance imaging (MRI) showed bladder endometriosis and extensive rectovaginal endometriosis. We describe the multidisciplinary approach used for surgery and the procedures performed by each specialty. The urology team performed a cystoscopy preoperatively to assess for full-thickness erosions and the location of those lesions in that event. The urology team also reviewed the magnetic resonance images with the radiology team, and the endometriosis lesions were suspected to be close to the bladder trigone, keeping in mind that this finding could be overestimated given that the bladder was deflated at the time the imaging was obtained. Accordingly, at the time of surgery, the decision was made to proceed with cystoscopy and the placement of ureteral stents as a prophylactic measure. An intentional cystotomy and resection of the bladder section involved with endometriosis were performed followed by watertight closure. The trigone area of the bladder was not involved, and ureteral reimplantation was not needed in this case. The gynecology team operated second and performed an extensive dissection of the retroperitoneal space with the development of the pararectal and paravesical spaces. They also ligated the uterine artery at its origin followed by dissection of the uterovesical space, effectively reflecting the bladder off of the lower uterine segment. At this point, they proceeded with a total hysterectomy, and the specimen was removed from the pelvis through the vaginal cuff. Preoperatively, the colorectal surgeon ordered a colonoscopy to determine if full-thickness erosions were present and reviewed the magnetic resonance images with the radiology team. Based on the MRI and colonoscopy, all patients are counseled and consented for the possibility of a low anterior resection and loop ileostomy to protect the anastomosis. Based on the understanding that colorectal and gynecologic surgeries have a different approach when dissecting the pararectal space at our institution, a discussion between the 2 teams is initiated at the multidisciplinary session for surgery planning. In the case we present, the colorectal surgeon opted for the removal of the uterus before his dissection was initiated given that he dissects this space presacrally and not retroperitoneally like the gynecology counterpart. He would also benefit from the extra space for dissection with the uterus out of the pelvis. The colorectal part of the case was initiated by mobilization of the rectum and dissecting the obliterated rectovaginal space. The presacral space was then opened followed by mobilization of the rectosigmoid from its attachment. The case was concluded with full transection and reanastomosis of the rectum section involved with endometriosis. The specimen was also removed from the pelvis through the vaginal cuff. MEASUREMENTS AND MAIN RESULTS: Complete resection of deeply infiltrative endometriosis spanning beyond the scope of 1 surgical specialty. No immediate intraoperative, perioperative, or long-term complications from surgery. Complete resolution of endometriosis symptoms. CONCLUSION: We encourage collaborative care for planning and performing comprehensive and safe resection of deeply infiltrative endometriosis. PMID- 29030293 TI - Solving probability reasoning based on DNA strand displacement and probability modules. AB - In computation biology, DNA strand displacement technology is used to simulate the computation process and has shown strong computing ability. Most researchers use it to solve logic problems, but it is only rarely used in probabilistic reasoning. To process probabilistic reasoning, a conditional probability derivation model and total probability model based on DNA strand displacement were established in this paper. The models were assessed through the game "read your mind." It has been shown to enable the application of probabilistic reasoning in genetic diagnosis. PMID- 29030294 TI - Type I interferon pathway activation in COPA syndrome. AB - Mutations of the COPA gene cause an immune dysregulatory disease characterised by polyarticular arthritis and progressive interstitial lung disease with pulmonary haemorrhages. We report the case of a young girl that presented at age 3 with polyarticular arthritis, chronic cough and high titer rheumatoid factor. Radiologic imaging showed interstitial lung disease with tree-in-a-bud nodules and air-filled cysts. Targeted genetic analysis of COPA gene showed the reported c.698G>A mutation. The patient was lost to follow up for 3years during which therapy was discontinued with the development of joint damage and deformities. Analysis of peripheral blood showed activation of type 1 interferon pathway, which was also confirmed in 4 previously reported COPA patients. Our observations underline the importance of early treatment in COPA disease to avoid loss of joint function. Furthermore, our results suggest a role for type 1 interferon in disease pathogenesis opening the possibility for targeted therapeutic approaches. PMID- 29030295 TI - The new phylogeny of the genus Mycobacterium: The old and the news. AB - BACKGROUND: Phylogenetic studies of bacteria have been based so far either on a single gene (usually the 16S rRNA) or on concatenated housekeeping genes. For what concerns the genus Mycobacterium these approaches support the separation of rapidly and slowly growing species and the clustering of most species in well defined phylogenetic groups. The advent of high-throughput shotgun sequencing leads us to revise conventional taxonomy of mycobacteria on the light of genomic data. For this purpose we investigated 88 newly sequenced species in addition to 60 retrieved from GenBank and used the Average Nucleotide Identity pairwise scores to reconstruct phylogenetic relationships within this genus. RESULTS: Our analysis confirmed the separation of slow and rapid growers and the intermediate position occupied by the M. terrae complex. Among the rapid growers, the species of the M. chelonae-abscessus complex belonged to the most ancestral cluster. Other major clades of rapid growers included the species related to M. fortuitum and M. smegmatis and a large grouping containing mostly environmental species rarely isolated from humans. The members of the M. terrae complex appeared as the most ancestral slow growers. Among slow growers two deep branches led to the clusters of species related to M. celatum and M. xenopi and to a large group harboring most of the species more frequently responsible of disease in humans, including the major pathogenic mycobacteria (M. tuberculosis, M. leprae, M. ulcerans). The species previously grouped in the M. simiae complex were allocated in a number of sub-clades; of them, only the one including the species M. simiae identified the real members of this complex. The other clades included also species previously not considered related to M. simiae. The ANI analysis, in most cases supported by Genome to Genome Distance and by Genomic Signature-Delta Difference, showed that a number of species with standing in literature were indeed synonymous. CONCLUSIONS: Genomic data revealed to be much more informative in comparison with phenotype. We believe that the genomic revolution enabled by high-throughput shotgun sequencing should now be considered in order to revise the conservative approaches still informing taxonomic sciences. PMID- 29030296 TI - Modulating influences of memory strength and sensitivity of the retrieval test on the detectability of the sleep consolidation effect. AB - Emotionality can increase recall probability of memories as emotional information is highly relevant for future adaptive behavior. It has been proposed that memory processes acting during sleep selectively promote the consolidation of emotional memories, so that neutral memories no longer profit from sleep consolidation after learning. This appears as a selective effect of sleep for emotional memories. However, other factors contribute to the appearance of a consolidation benefit and influence this interpretation. Here we show that the strength of the memory trace before sleep and the sensitivity of the retrieval test after sleep are critical factors contributing to the detection of the benefit of sleep on memory for emotional and neutral stimuli. 228 subjects learned emotional and neutral pictures and completed a free recall after a 12-h retention interval of either sleep or wakefulness. We manipulated memory strength by including an immediate retrieval test before the retention interval in half of the participants. In addition, we varied the sensitivity of the retrieval test by including an interference learning task before retrieval testing in half of the participants. We show that a "selective" benefit of sleep for emotional memories only occurs in the condition with high memory strength. Furthermore, this "selective" benefit disappeared when we controlled for the memory strength before the retention interval and used a highly sensitive retrieval test. Our results indicate that although sleep benefits are more robust for emotional memories, neutral memories similarly profit from sleep after learning when more sensitive indicators are used. We conclude that whether sleep benefits on memory appear depends on several factors, including emotion, memory strength and sensitivity of the retrieval test. PMID- 29030299 TI - Enhancing early consolidation of human episodic memory by theta EEG neurofeedback. AB - Consolidation of newly formed memories is readily disrupted, but can it be enhanced? Given the prominent role of hippocampal theta oscillations in memory formation and retrieval, we hypothesized that upregulating theta power during early stages of consolidation might benefit memory stability and persistence. We used EEG neurofeedback to enable participants to selectively increase theta power in their EEG spectra following episodic memory encoding, while other participants engaged in low beta-focused neurofeedback or passively viewed a neutral nature movie. Free recall assessments immediately following the interventions, 24h later and 7d later all indicated benefit to memory of theta neurofeedback, relative to low beta neurofeedback or passive movie-viewing control conditions. The degree of benefit to memory was correlated with the extent of theta power modulation, but not with other spectral changes. Theta enhancement may provide optimal conditions for stabilization of new hippocampus-dependent memories. PMID- 29030298 TI - Linking muscarinic receptor activation to UPS-mediated object memory destabilization: Implications for long-term memory modification and storage. AB - Consolidated memories can become destabilized during reactivation, resulting in a transient state of instability, a process that has been hypothesized to underlie long-term memory updating. Consistent with this notion, relatively remote memories, which are resistant to standard destabilization procedures, are reliably destabilized when novel information (i.e., the opportunity for memory updating) is present during reactivation. We have also shown that cholinergic muscarinic receptor (mAChR) activation can similarly destabilize consolidated object memories. Synaptic protein degradation via the ubiquitin proteasome system (UPS) has previously been linked to destabilization of fear and object-location memories. Given the role of calcium in regulating proteasome activity, we hypothesized that activation of cholinergic receptors, specifically M1 mAChRs, stimulates the UPS via inositol triphosphate receptor (IP3R)-mediated release of intracellular calcium stores to facilitate object memory destabilization. We present converging evidence for this hypothesis, which we tested using a modified spontaneous object recognition task for rats and microinfusions into perirhinal cortex (PRh), a brain region strongly implicated in object memory. We extend our previous findings by demonstrating that M1 mAChRs are necessary for novelty induced object memory destabilization. We also show that proteasome inhibition or IP3R antagonism in PRh prevents object memory destabilization induced by novelty or M1 mAChR stimulation. These results establish an intracellular pathway linking M1 receptors, IP3Rs, and UPS activity to object memory destabilization and suggest a previously unacknowledged role for cholinergic signaling in long-term memory modification and storage. PMID- 29030297 TI - Impaired extinction of cued fear memory and abnormal dendritic morphology in the prelimbic and infralimbic cortices in VPAC2 receptor (VIPR2)-deficient mice. AB - The structurally related neuropeptides vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating polypeptide (PACAP) have been implicated in stress regulation and learning and memory. Several bodies of research have shown the impact of the PACAP specific receptor PAC1 on fear memory, but the roles of other PACAP receptors in regulating fear stress responses remain to be elucidated. Here we aimed to investigate the effects of genetic deletion of VIPR2 encoding the VPAC2 receptor, which binds both VIP and PACAP, on fear-related memory and on dendritic morphology in the brain regions of the fear circuitry. Male VPAC2 receptor knockout (VPAC2-KO) and littermate wild-type control mice were subjected to Pavlovian fear conditioning paradigm. VPAC2-KO mice displayed normal acquisition of fear conditioning, contextual and cued fear memory, but impaired extinction of cued fear memory. Morphological analyses revealed reductions in cell body size and total branch number and length of apical and basal dendrites of prelimbic cortex neurons in VPAC2-KO mice. In addition, Sholl analysis indicated that the amount of dendritic material distal to the soma was decreased, while proximal dendritic material was increased. In the infralimbic cortex, the amount of apical dendritic material proximal to the soma was increased in VPAC2-KO mice, while other indices of morphology did not differ. Finally, there were no differences in dendritic morphology in basolateral amygdala neurons between genotypes. These findings suggest that the VPAC2 receptor plays an important role in the fear extinction processes and the regulation of the dendritic morphology in the prelimbic and infralimbic cortices. PMID- 29030300 TI - Gold nanocage decorated pH-sensitive micelle for highly effective photothermo chemotherapy and photoacoustic imaging. AB - : A pH-sensitive copolymer PAsp(DIP)-b-PAsp(MEA) (PDPM) was synthesized and self assembled to micelle loading chemotherapeutic drug doxorubicin (DOX) and introducing a gold nanocage structure for photothermo-chemotherapy and photoacoustic imaging. After further surface modification with polyethylene glycol (PEG), the DOX-loaded pH-sensitive gold nanocage (D-PGNC) around 100 nm possessed a uniform spherical structure with a pH-sensitive core of PAsp(DIP) incorporating DOX, an interlayer crosslinked via disulfide bonds and decorated with discontinuous gold shell, and a PEG corona. The release of DOX from D-PGNC was turned off in bloodstream due to the cross-linking and gold decoration of interlayer but turned on inside tumor tissue by multiple stimulations including the low pH value of tumor tissue (~6.8), the low lysosomal pH value of cancer cells (~5.0) and near-infrared (NIR) irradiation. The gold nanocage receiving NIR irradiation could generate hyperthermia to ablate tumor cells. Moreover, the photoacoustic (PA) imaging and analysis of DOX fluorescence inside tumor tissue demonstrated that photothermal therapy based on the gold nanocage effectively drove DOX penetration inside tumor. Owing to the rapid intratumor release and deep tissue penetration of drug favorable for killing cancer cells survived the photothermal therapy, the combined therapy based on D-PGNC via NIR irradiation exhibited a synergistic treatment effect superior to either chemotherapy or NIR induced photothermal therapy alone. STATEMENT OF SIGNIFICANCE: The novelty of the manuscript is its multifunctional system which incorporates anticancer drug DOX in its pH-sensitive core and acts as a template to introduce a gold nanocage. This nanomedicine presents potentials of sequestrating drug molecules in blood circulation but releasing them inside tumor upon responding to the acidic microenvironment therein. Exposure to NIR laser further expedited the pH sensitive DOX release and promoted DOX penetration into cancer tissues far away from the vasculature. Consequently, the combined photothermo-chemotherapy showed synergistic effects to inhibit tumor growth and prolong animal survival in nude mice bearing human SKOV-3 ovarian tumor. Moreover, owing to the decoration with gold nanocage, the tumor accumulation and intratumor diffusion of the micelles were easily trackable using photoacoustic imaging. PMID- 29030302 TI - Mesenchymal stem cell therapy for retro-corneal membrane - A clinical challenge in full-thickness transplantation of biosynthetic corneal equivalents. AB - : Artificial corneas (keratoprostheses) and biosynthetic collagen-based corneal equivalents are surgical implants designed to ease the global burden of corneal blindness. However, keratoprostheses in many cases fail due to development of fibrous retro-corneal membranes (RCM). Fibrous membranes which develop in the anterior chamber after prosthesis implantation do so on a matrix of fibrin. This study investigated fibrin deposition and RCM formation after full-thickness collagen-based hydrogel implants and compared them with syngeneic and allogeneic corneal grafts in mice. Fibrin cleared from the anterior chamber within 14 days in both allo- and syn-grafts but, persisted in hydrogel implants and developed into dense retro-corneal membrane (RCM) which were heavily infiltrated by activated myofibroblasts. In contrast, the number of CD11b+ macrophages infiltrating the initial deposition of fibrin in the anterior chamber (AC) after hydrogel implantation was markedly reduced compared to syn- and allo-grafts. Inoculation of mesenchymal stem cells prior to collagen gel implant promoted clearance of gel-associated fibrin from the anterior chamber. We propose that a failure of macrophage-mediated clearance of fibrin may be the cause of RCM formation after collagen-based hydrogel implants and that mesenchymal stem cell therapy promotes clearance of fibrin and prevents RCM formation. STATEMENT OF SIGNIFICANCE: The manuscript addresses the potential value of bone marrow-derived mesenchymal stem cell therapy for retro-corneal membrane (RCM) formation in full thickness transplantation of biosynthetic corneal equivalents. This work reports the pathophysiological changes in the anterior chamber of the mouse eye following full-thickness recombinant human cross-linked collagen-based hydrogel implants in which persistent fibrin promotes the development of dense RCM. Furthermore, pre treatment with mesenchymal stem cells reduces RCM formation and enhances corneal transparency. PMID- 29030301 TI - Biodegradable zwitterionic sulfobetaine polymer and its conjugate with paclitaxel for sustained drug delivery. AB - : A fully biodegradable zwitterionic polymer and the corresponding conjugate with paclitaxel (PTX) were synthesized as promising biomaterials. Allyl-functionalized polylactide (PLA) was employed as the precursor of polymer backbones. UV-induced thiol-ene reaction was conducted to conjugate thiol-functionalized sulfobetaine (SB) with the PLA-based backbone. The resulting zwitterionic polymer did not exhibit considerable cytotoxicity. A polymer-drug conjugate was also obtained by thiol-ene reaction of both thiol-functionalized SB and PTX with allyl functionalized PLA. The conjugate could readily form narrowly-dispersed nanoparticles in aqueous solutions with a volume-average hydrodynamic diameter (Dh,V) of 19.3 +/- 0.2 nm. Such a polymer-drug conjugate-based drug delivery system showed full degradability, well-suppressed non-specific interaction with biomolecules, and sustained drug release. In vitro assessments also confirmed the significant anti-cancer efficacy of the conjugate. After 72 h incubation with PLA SB/PTX containing 10 ug/mL of PTX, the cell viabilities of A549, MCF7, and PaCa-2 cells were as low as 20.0 +/- 2.5%, 1.7 +/- 1.7%, and 14.8 +/- 0.9%, respectively. Both flow cytometry and confocal microscopy suggested that the conjugates could be easily uptaken by A549 cells before the major release of PTX moieties. Overall, this work elucidates promising potentials of biodegradable zwitterionic polymer-based materials in biomedical applications. STATEMENT OF SIGNIFICANCE: The applicability of FDA-approved biodegradable aliphatic polyesters has been significantly restricted because they are hydrophobic and lack functionalities. Recently zwitterionic polymers have emerged as promising hydrophilic biomaterials, but most of the reported zwitterionic polymers are non biodegradable. This study reports a novel aliphatic polyester-based zwitterionic polymer and the corresponding polymer-drug conjugate. Their aliphatic polyester and zwitterionic components provide them with high enzymatic degradability and low nonspecific interactions with biomolecules, respectively. While the zwitterionic polymer did not show noticeable cytotoxicity, the corresponding polymer-anticancer drug conjugate exhibited acid-sensitive sustained drug release, remarkable effectiveness in killing cancer cells, as well as the ready cellular internalization. This work lays a foundation for the further development of synthetic biodegradable zwitterionic polymer-based materials which potentially may have broad and significant biomedical applications. PMID- 29030303 TI - Electrospun formulations of bevacizumab for sustained release in the eye. AB - : Medicines based on vascular endothelial growth factor (VEGF) neutralising antibodies such as bevacizumab have revolutionized the treatment of age related macular degeneration (AMD), a common blinding disease, and have great potential in preventing scarring after surgery or accelerating the healing of corneal injuries. However, at present frequent invasive injections are required to deliver these antibodies. Such administration is uncomfortable for patients and expensive for health service providers. Much effort is thus focused on developing dosage forms that can be administered less frequently. Here we use electrospinning to prepare a solid form of bevacizumab designed for prolonged release while maintaining antibody stability. Electrospun fibers were prepared with bevacizumab encapsulated in the core, surrounded by a poly-epsilon caprolactone sheath. The fibers were generated using aqueous bevacizumab solutions buffered at two different pH values: 6.2 (the pH of the commercial product; Fbeva) and 8.3 (the isoelectric point of bevacizumab; FbevaP). The fibers had smooth and cylindrical morphologies, with diameters of ca. 500nm. Both sets of bevacizumab loaded fibers gave sustained release profiles in an in vitro model of the subconjunctival space of the eye. Fbeva displayed first order kinetics with t1/2 of 11.4+/-4.4 days, while FbevaP comprises a zero-order reservoir type release system with t1/2 of 52.9+/-14.8 days. Both SDS-PAGE and surface plasmon resonance demonstrate that the bevacizumab in FbevaP did not undergo degradation during fiber fabrication or release. In contrast, the antibody released from Fbeva had degraded, and failed to bind to VEGF. Our results demonstrate that pH control is crucial to maintain antibody stability during the fabrication of core/shell fibers and ensure release of functional protein. STATEMENT OF SIGNIFICANCE: Bevacizumab is a potent protein drug which is highly effective in the treatment of degenerative conditions in the eye. To be effective, frequent injections into the eye are required, which is deeply unpleasant for patients and expensive for healthcare providers. Alternative methods of administration are thus highly sought after. In our work, we use the electrospinning technique to prepare fiber-based formulations loaded with bevacizumab. By careful control of the experimental parameters we are able to stabilize the protein during processing and ensure a constant rate of release over more than two months in vitro. These fibers could thus be used to reduce the frequency of dosing required, reducing cost and improving patient outcomes. PMID- 29030304 TI - Interaction of cruciferin-based nanoparticles with Caco-2 cells and Caco-2/HT29 MTX co-cultures. AB - : The objective of this work was to assess the potential of Cruciferin/Calcium (Cru/Ca) and Cruciferin/Chitosan (Cru/Cs) nanoparticles for oral drug delivery. For this purpose, Cru/Ca and Cru/Cs nanoparticles were developed through cold gelation of Cruciferin, a major canola protein, and in interaction with calcium and chitosan, respectively. The extent and rate of particle uptake in Caco-2 cells and Caco-2/HT29 co-culture was then evaluated by fluorescence spectroscopy as well as flow cytometry. Through pre-incubation of Caco-2 cell monolayer with specific endocytosis inhibitors, the mechanism of cell uptake was investigated. Our results showed that the uptake of negatively-charged Cru/Ca particles to be ~3 times higher than positively-charged Cru/Cs ones by Caco-2 cells. Presence of mucus secreted by HT29 cells in their co-culture with Caco-2 had negligible influence on the uptake and transport of both particles. In contrast to Cru/Ca particles which were dissociated in the simulated gastrointestinal conditions, digestion of Cru/Cs particles resulted in 6- and 2-fold increase in the cellular uptake and transport of encapsulated coumarin in the latter particles, respectively. While the presence of mucus in Caco-2/HT29 co-culture caused 40-50% decrease of cellular uptake and transport for coumarin encapsulated in digested Cru/Cs particles, it had no significant effect on the cell uptake and transport of coumarin associated with Cru/Ca particles after digestion. Energy-dependent mechanisms were the dominant mechanism for uptake of both undigested and digested particles. Therefore, in Caco-2/HT29 co-culture which closely simulated intestinal epithelial cells, undigested Cru/Ca and Cru/Cs particles had the ability to penetrate mucus layers, while digested Cru/Cs particles showed mucoadhesive property, and digested Cru/Ca particles were dissociated. Our results points to a potential for cruciferin based nanoparticles for oral drug delivery. STATEMENT OF SIGNIFICANCE: The long-term objective of this research is to investigate the potential of edible and safe biopolymer in enhanced oral delivery of drugs and/or vaccines. Here, we investigated the potential application of nanoparticles based on a protein extracted from Canola seeds, i.e., cruciferin, for oral delivery of a model small molecule, i.e., coumarin, through cells representing gastrointestinal epithelium, Caco-2 and Caco-2/HT29 cell monolayer. This study was completed for intact cruciferin nanoparticles and cruciferin coated chitosan nanoparticles, before and after digestion with gastric or intestine simulating fluids. This comparison was useful to understand the fate the cruciferin based particles in digestive mucosal tissues and their potential mucoadhesive and/or mucus-penetrating property. PMID- 29030305 TI - Entirely S-protected chitosan: A promising mucoadhesive excipient for metronidazole vaginal tablets. AB - AIM: Synthesis and evaluation of an entirely S-protected chitosan as mucoadhesive excipient for vaginal drug delivery. METHODS: N-acetyl-cysteine was linked to 6 mercaptonicotinamide via disulphide exchange reaction. The obtained ligand, NAC-6 MNA, was subsequently attached to chitosan by carbodiimide mediated amide bond formation in two concentrations. The synthesized S-protected chitosan was chemically characterized and mucoadhesive properties and stability against oxidation were investigated. Moreover, metronidazole tablets comprising the S protected chitosan were evaluated regarding water uptake capacity, disintegration behaviour, residence time on vaginal mucosa, release of the encapsulated drug and antimicrobial activity. RESULTS: S-protected chitosan displayed 160+/-19 (CS-MNA 160) and 320+/-38 (CS-MNA-320)umol of ligand per gram of polymer. At pH 4.2, CS MNA-160 and CS-MNA-320 showed 5.2-fold and 6.2-fold increase in mucus viscosity in comparison to unmodified chitosan (One-way ANOVA, p<.001), whereas, 9.9-fold (CS-MNA-160) and 15.6-fold (CS-MNA-320) (One-way ANOVA, p<.001) increase in viscosity was measured at pH 6. The S-protected chitosan remained stable against oxidation in presence of 0.5%v/v hydrogen peroxide. Metronidazole tablets consisting in S-protected chitosan showed prolonged residence time on vaginal mucosa and improved water uptake capacity and disintegration time in comparison to tablets consisting of unmodified chitosan. Moreover, CS-MNA-320 metronidazole tablets displayed prolonged drug release and antimicrobial activity. CONCLUSIONS: On the basis of the achieved results, entirely S-protected chitosan represents a promising excipient for the development of metronidazole vaginal tablets. STATEMENT OF SIGNIFICANCE: S-protected thiomers are polymers modified with thiol groups protected by aromatic ligands and characterized by strong mucoadhesive properties and high stability against oxidation. Up to date, the entirely S protection of thiol groups was achieved via the synthesis of the ligand 2-((2 amino-2-carboxyethyl)disulfanyl)nicotinic acid) which can be directly bound to the backbone of polymers bearing carboxylic moieties as pectin. However, this ligand is not suitable for positively charged polymers due to the negative charge. In this paper, the synthesis of a suitable ligand for the entirely S protection of positively charged polymers is presented. The first entirely S protected chitosan was synthesized, characterized and its mucoadhesive properties were assessed. Moreover, metronidazole tablets comprising the entirely S protected chitosan were developed and evaluated as vaginal drug delivery system. PMID- 29030306 TI - Electrospraying of microfluidic encapsulated cells for the fabrication of cell laden electrospun hybrid tissue constructs. AB - : The fabrication of functional 3D tissues is a major goal in tissue engineering. While electrospinning is a promising technique to manufacture a structure mimicking the extracellular matrix, cell infiltration into electrospun scaffolds remains challenging. The robust and in situ delivery of cells into such biomimetic scaffolds would potentially enable the design of tissue engineered constructs with spatial control over cellular distribution but often solvents employed in the spinning process are problematic due to their high cytotoxicity. Herein, microfluidic cell encapsulation is used to establish a temporary protection vehicle for the in situ delivery of cells for the development of a fibrous, cell-laden hybrid biograft. Therefore a layer-by-layer process is used by alternating fiber electrospinning and cell spraying procedures. Both encapsulation and subsequent electrospraying of capsules has no negative effect on the viability and myogenic differentiation of murine myoblast cells. Propidium iodide positive stained cells were analyzed to quantify the amount of dead cells and the presence of myosin heavy chain positive cells after the processes was shown. Furthermore, encapsulation successfully protects cells from cytotoxic solvents (such as dimethylformamide) during in situ delivery of the cells into electrospun poly(vinylidene fluoride-co-hexafluoropropylene) scaffolds. The resulting cell-populated biografts demonstrate the clear potential of this approach in the creation of viable tissue engineering constructs. STATEMENT OF SIGNIFICANCE: Infiltration of cells and their controlled spatial distribution within fibrous electrospun membranes is a challenging task but allows for the development of functional highly organized 3D hybrid tissues. Combining polymer electrospinning and cell electrospraying in a layer-by-layer approach is expected to overcome current limitations of reduced cell infiltration after traditional static seeding. However, organic solvents, used during the electrospinning process, impede often major issues due to their high cytotoxicity. Utilizing microfluidic encapsulation as a mean to embed cells within a protective polymer casing enables the controlled deposition of viable cells without interfering with the cellular phenotype. The presented techniques allow for novel cell manipulation approaches being significant for enhanced 3D tissue engineering based on its versatility in terms of material and cell selection. PMID- 29030307 TI - EGFR-targeted multifunctional polymersomal doxorubicin induces selective and potent suppression of orthotopic human liver cancer in vivo. AB - : Liver cancer is a globally leading malignancy that has a poor five-year survival rate of less than 20%. The systemic chemotherapeutics are generally ineffective for liver cancers partly due to fast clearance and low tumor uptake. Here, we report that GE11 peptide functionalized polymersomal doxorubicin (GE11 PS-DOX) effectively targets and inhibits epidermal growth factor receptor (EGFR) positive SMMC7721 orthotopic human liver tumor xenografts in mice. GE11-PS-DOX with a GE11 surface density of 10% displayed a high drug loading of 15.4 wt%, a small size of 78 nm, and glutathione-triggered release of DOX. MTT assays, flow cytometry and confocal microscopy studies revealed that GE11-PS-DOX mediated obviously more efficient DOX delivery into SMMC7721 cells than the non-targeting PS-DOX and clinically used liposomal doxorubicin (Lipo-DOX) controls. The in vivo studies showed that GE11-PS-DOX had a long circulation time and an extraordinary accumulation in the tumors (13.3 %ID/g). Interestingly, GE11-PS-DOX caused much better treatment of SMMC7721 orthotopic liver tumor-bearing mice as compared to PS-DOX and Lipo-DOX. The mice treated with GE11-PS-DOX (12 mg DOX equiv./kg) exhibited a significantly improved survival rate (median survival time: 130 days versus 70 and 38 days for PS-DOX at 12 mg DOX equiv./kg and Lipo-DOX at 6 mg DOX equiv./kg, respectively) and achieved 50% complete regression. Notably, GE11-PS DOX induced obviously lower systemic toxicity than Lipo-DOX. EGFR-targeted multifunctional polymersomal doxorubicin with improved efficacy and safety has a high potential for treating human liver cancers. STATEMENT OF SIGNIFICANCE: Liver cancer is one of the top five leading causes of cancer death worldwide. The systemic chemotherapeutics and biotherapeutics generally have a low treatment efficacy for hepatocellular carcinoma partly due to fast clearance and/or low tumor uptake. Nanomedicines based on biodegradable micelle and polymersomes offer a most promising treatment for malignant liver cancers. Their clinical effectiveness remains, however, suboptimal owing to issues like inadequate systemic stability, low tumor accumulation and selectivity, and poor control over drug release. Here we report that GE11 peptide-functionalized, disulfide crosslinked multifunctional polymersomal doxorubicin (GE11-PS-DOX) can effectively suppress the growth of orthotopic SMMC7721 human liver tumors in nude mice. They showed significantly decreased systemic toxicity and improved mouse survival rate with 3.4-fold longer median survival time as compared to clinically used pegylated liposomal doxorubicin (Lipo-DOX) and achieving 50% complete regression. GE11-PS-DOX, based on PEG-PTMC is biodegradable, nontoxic, and easy to prepare, appears as a safe, robust, versatile and all-function-in-one nanoplatform that has a high potential in targeted chemotherapy of EGFR expressed hepatocellular carcinoma. PMID- 29030308 TI - Engineering intranasal mRNA vaccines to enhance lymph node trafficking and immune responses. AB - : Intranasal mRNA vaccination provides immediate immune protection against pandemic diseases. Recent studies have shown that diverse forms of polyethyleneimine (PEI) have potent mucosal adjuvant activity, which could significantly facilitate the delivery of intranasal mRNA vaccines. Nevertheless, optimizing the chemical structure of PEI to maximize its adjuvanticity and decrease its toxicity remains a challenge. Here we show that the chemical structure of PEI strongly influences how well nanocomplexes of PEI and mRNA migrate to the lymph nodes and elicit immune responses. Conjugating cyclodextrin (CD) with PEI600 or PEI2k yielded CP (CD-PEI) polymers with different CD/PEI ratios. We analyzed the delivery efficacy of CP600, CP2k, and PEI25k as intranasal mRNA vaccine carriers by evaluating the lymph nodes migration and immune responses. Among these polymers, CP2k/mRNA showed significantly higher in vitro transfection efficiency, stronger abilities to migrate to lymph nodes and stimulate dendritic cells maturation in vivo, which further led to potent humoral and cellular immune responses, and showed lower local and systemic toxicity than PEI25k/mRNA. These results demonstrate the potential of CD-PEI2k/mRNA nanocomplex as a self-adjuvanting vaccine delivery vehicle that traffics to lymph nodes with high efficiency. STATEMENT OF SIGNIFICANCE: As we face outbreaks of pandemic diseases such as Zika virus, intranasal mRNA vaccination provides instant massive protection against highly variant viruses. Various polymer-based delivery systems have been successfully applied in intranasal vaccine delivery. However, the influence of molecular structure of the polymeric carriers on the lymph node trafficking and dendritic cell maturation is seldom studied for intranasal vaccination. Therefore, engineering polymer-based vaccine delivery system and elucidating the relationship between molecular structure and the intranasal delivery efficiency are essential for maximizing the immune responses. We hereby construct self-adjuvanting polymer-based intranasal mRNA vaccines to enhance lymph node trafficking and further improve immune responses. PMID- 29030309 TI - Hearing the Voice of the Resident in Long-Term Care Facilities-An Internationally Based Approach to Assessing Quality of Life. AB - OBJECTIVES: interRAI launched this study to introduce a set of standardized self report measures through which residents of long-term care facilities (LTCFs) could describe their quality of life and services. This article reports on the international development effort, describing measures relative to privacy, food, security, comfort, autonomy, respect, staff responsiveness, relationships with staff, friendships, and activities. First, we evaluated these items individually and then combined them in summary scales. Second, we examined how the summary scales related to whether the residents did or did not say that the LTCFs in which they lived felt like home. DESIGN: Cross-sectional self-report surveys by residents of LTCFs regarding their quality of life and services. SETTING/PARTICIPANTS: Resident self-report data came from 16,017 individuals who resided in 355 LTCFs. Of this total, 7113 were from the Flanders region of Belgium, 5143 residents were from Canada, and 3358 residents were from the eastern and mid-western United States. Smaller data sets were collected from facilities in Australia (20), the Czech Republic (72), Estonia (103), Poland (118), and South Africa (87). MEASUREMENTS: The interRAI Self-Report Quality of Life Survey for LTCFs was used to assess residents' quality of life and services. It includes 49 items. Each area of inquiry (eg, autonomy) is represented by multiple items; the item sets have been designed to elicit resident responses that could range from highly positive to highly negative. Each item has a 5-item response set that ranges from "never" to "always." RESULTS: Typically, we scored individual items scored based on the 2 most positive categories: "sometimes" and "always." When these 2 categories were aggregated, among the more positive items were: being alone when wished (83%); decide what clothes to wear (85%); get needed services (87%); and treated with dignity by staff (88%). Areas with a less positive response included: staff knows resident's life story (30%); resident has enjoyable things to do on weekends (32%); resident has people to do things with (33%); and resident has friendly conversation with staff (45%). We identified 5 reliable scales; these scales were positively associated with the resident statement that the LTCF felt like home. Finally, international score standards were established for the items and scales. CONCLUSIONS: This study establishes a set of standardized, self-report items and scales with which to assess the quality of life and services for residents in LTCFs. The study also demonstrates that these scales are significantly related to resident perception of the home like quality of the facilities. PMID- 29030310 TI - Dysphagia in Nursing Homes-Results From the NutritionDay Project. AB - OBJECTIVES: Dysphagia is a major healthcare problem as it increases the risk of malnutrition, dehydration, aspiration pneumonia, and death. The aims of this analysis of data from nursing homes (NHs) worldwide were to examine prevalence rates of dysphagia, to identify characteristics of residents with dysphagia, and to describe which type of nutrition residents with dysphagia receive. DESIGN: One day cross-sectional study, repeated in yearly intervals since 2007. SETTING: 926 NH units from 19 countries. PARTICIPANTS: NH residents participating in the nutritionDay between 2007 and 2014, aged 65 years or older, from Europe and North America, and with available information on dysphagia. MEASUREMENTS: Data on resident and unit level were collected on nutritionDay by local nursing staff using standardized questionnaires. Residents' nutritional status, nutritional intake, general residents' characteristics, and unit characteristics were of interest as potential predictors of dysphagia (no vs yes). Univariable generalized estimating equations were performed for all variables, and significant predictors (P < .01) included in a multivariable analysis. Nutritional strategies (type of diet, use of oral nutritional supplements, tube feeding, and parenteral nutrition) are described for residents with and without dysphagia. RESULTS: Dysphagia was reported in 13.4% of the 23,549 residents included, with great variation in the prevalence rates between participating countries. Twelve variables of 23 remained in the multivariable model [area under the receiver operating curve = 0.898; 95% confidence interval (CI) 0.892-0.904; P < .001]. Residents who were not able to eat lunch orally on nutritionDay were 14.90 [odds ratio (OR); 95% CI 9.61-23.11] times more likely to have dysphagia compared with residents who ate everything. ORs of dysphagia were higher for residents with chewing problems (OR 10.48; 95% CI 8.98-12.23), immobile (OR 5.10, 95% CI 4.25-6.11) and partially mobile residents (OR 1.94; 95% CI 1.64-2.29) compared to mobile residents, and residents with severe cognitive impairment (OR 1.99; 95% CI 1.64-2.42). Poor nutritional status, digestive diseases, neurologic diseases, dehydration, and use of antibiotics were also related to a higher risk of dysphagia. The most common nutritional strategy for residents with dysphagia was providing texture-modified diet (42.5%) followed by normal diet (28.2%). One quarter of residents with dysphagia received oral nutritional supplements additionally, 7.4% of residents with dysphagia received tube feeding exclusively, and 8.0% in combination with oral nutrition. CONCLUSIONS: This analysis of NHs participating in the nutritionDay provides important insight into the current awareness of dysphagia, associated factors, and nutritional strategies. Residents who were unable to eat orally, malnourished, or dehydrated suffered more often from dysphagia, which substantiates the challenges of providing safe and adequate nutrition for residents with dysphagia. Adequacy and efficiency of different nutritional strategies need to be clarified in future studies. PMID- 29030311 TI - Potential transmission opportunity of CTX-M-producing Escherichia coli on a large scale chicken farm in Vietnam. AB - OBJECTIVES: Extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli have disseminated worldwide. This study investigated blaCTX-M-positive E. coli on a large-scale Vietnamese chicken farm and analysed whether there was any difference in prevalence and molecular characteristics of blaCTX-M-positive E. coli between the farm and the Vietnamese community. METHODS: Faecal samples were collected from 24 human individuals and 38 chickens from the large-scale chicken farm as well as 51 humans and 36 chickens from the community. All samples were collected between June 2013 and June 2014 in Bavi Province in the Red River Delta region of Vietnam. Molecular characterisation of CTX-M-producing E. coli and genetic relatedness among the isolates were evaluated by conventional typing methods. Antimicrobial susceptibility of the isolates was evaluated by the disk diffusion method. RESULTS: The prevalence of blaCTX-M-positive E. coli was 83.3%, 71.1%, 54.9% and 13.9% in farm workers, farm chickens, community individuals and community backyard chickens, respectively. On average, blaCTX-M-positive E. coli isolates from farm chickens were resistant to 8.3 different antibiotics. The average number of detected aminoglycoside-modifying enzyme genes (3.4 genes) and the detection rate of the plasmid-mediated colistin resistance gene mcr-1 (33.3%) were higher in blaCTX-M-positive E. coli isolated from farm chickens compared with other sampling groups. In addition, two types of indistinguishable pulsed field gel electrophoresis (PFGE) patterns were observed in six blaCTX-M-65 positive E. coli and three blaCTX-M-55-positive E. coli from farm chickens. CONCLUSIONS: These results suggest a more frequent transmission opportunity of blaCTX-M-positive E. coli on the large-scale Vietnamese chicken farm. PMID- 29030312 TI - Antimicrobial resistance of Enterococcus spp. isolated from Thai fermented pork in Chiang Rai Province, Thailand. AB - OBJECTIVES: The aim of this study was to evaluate the prevalence of antimicrobial resistant phenotypes and genes of Enterococcus spp. in order to explore the range of resistance profiles from Thai traditional fermented pork. METHODS: A total of 120 Thai fermented pork specimens were collected in Chiang Rai, Thailand. Antimicrobial resistance among isolated enterococci to 11 antimicrobial agents was determined by the agar disk diffusion method. Antibiotic resistance genes from resistant phenotypes and virulence genes were observed. RESULTS: A total of 119 enterococci were found contaminating the collected samples. The most prevalent species was Enterococcus faecalis (68.9%), followed by Enterococcus hirae (16.0%), Enterococcus faecium (13.4%) and Enterococcus gallinarum (1.7%). The highest percentage of resistance was to ciprofloxacin (97.5%), followed by erythromycin (78.2%) and tetracycline (67.2%), whilst high-level gentamicin- and streptomycin-resistant isolates were of lower frequency (7.6% and 22.7%, respectively). All isolates were susceptible to the clinically important agents vancomycin and teicoplanin. Overall, a relatively high frequency of multidrug resistant (MDR) enterococci was observed (76.2%). Antimicrobial-resistant phenotypes were found to carry aacA-aphD, addE, erm(B), mefA/E, cat, tet(L) and tet(M) resistance genes. Virulence genes were also evaluated and the gelE gene was found to be the most common (37.8%). CONCLUSIONS: These data highlight the importance of MDR enterococci in fermented pork in Thailand. This is the first report to detect the unusual species E. hirae carrying the mefA/E macrolide resistance gene. These clinically important and unusual enterococci isolates from Thai fermented pork could be a source of transferable resistance genes to other bacteria. PMID- 29030313 TI - First description of the emergence of Enterobacter asburiae producing IMI-2 carbapenemase in the Czech Republic. PMID- 29030314 TI - Distribution of Ixodes ricinus ticks and prevalence of tick-borne encephalitis virus among questing ticks in the Arctic Circle region of northern Norway. AB - This study investigated the geographical distribution of Ixodes ricinus and prevalence of the tick-borne encephalitis virus (TBEV) in northern Norway. Flagging for questing I. ricinus ticks was performed in areas ranging from Vikna in Nord-Trondelag County, located 190km south of the Arctic Circle (66.3 degrees N), to Steigen in Nordland County, located 155km north of the Arctic Circle. We found that ticks were abundant in both Vikna (64.5 degrees N) and Bronnoy (65.1 degrees N). Only a few ticks were found at locations ~66 degrees N, and no ticks were found at several locations up to 67.5 degrees N. Real-time PCR (RT-PCR) analyses of the collected ticks (nymphs and adults) for the presence of TBEV revealed a low prevalence (0.1%) of TBEV among the nymphs collected in Vikna, while a prevalence of 0% to 3% was found among nymphs collected at five locations in Bronnoy. Adult ticks collected in Vikna and Bronnoy had higher rates of TBEV infection (8.6% and 0%-9.0%, respectively) than the nymphs. No evidence of TBEV was found in the few ticks collected further north of Bronnoy. This is the first report of TBEV being detected at locations up to 65.1 degrees N. It remains to be verified whether viable populations of I. ricinus exist at locations north of 66 degrees N. Future studies are warranted to increase our knowledge concerning tick distribution, tick abundance, and tick-borne pathogens in northern Norway. PMID- 29030315 TI - Natural history of Ixodes affinis in Virginia. AB - The ixodid tick species Ixodes affinis is expanding its range northward, changing the tick community population dynamics in the Mid-Atlantic United States. We present five years of surveillance on newly established populations of I. affinis throughout southeastern Virginia and discuss the habitat and host associations of I. affinis in this northernmost extent of its range. We found that I. affinis populations tend to persist once they are established, and populations tend to increase as ecological succession progresses, provided a vegetated understory persists. Populations of I. affinis were never found in the smallest habitat fragments or in xeric dune habitats, and the highest densities of I. affinis were found in mixed pine-hardwood forests with an herbaceous understory. We also document several new mammalian hosts for I. affinis, including house mice (Mus musculus) and coyotes (Canis latrans) and discuss how these hosts may facilitate the continued dispersal of I. affinis and the maintenance of these newly established populations. PMID- 29030316 TI - Post-molting development of wind-elicited escape behavior in the cricket. AB - Arthropods including insects grow through several developmental stages by molting. The abrupt changes in their body size and morphology accompanying the molting are responsible for the developmental changes in behavior. While in holometabolous insects, larval behaviors are transformed into adult-specific behaviors with drastic changes in nervous system during the pupal stage, hemimetabolous insects preserve most innate behaviors whole life long, which allow us to trace the maturation process of preserved behaviors after the changes in body. Wind-elicited escape behavior is one of these behaviors and mediated by cercal system, which is a mechanosensory organ equipped by all stages of nymph in orthopteran insects like crickets. However, the maturation process of the escape behavior after the molt is unclear. In this study, we examined time-series of changes in the wind-elicited escape behavior just after the imaginal molt in the cricket. The locomotor activities are developed over the elapsed time, and matured 24h after the molt. In contrast, a stimulus-angle dependency of moving direction was unchanged over time, meaning that the cercal sensory system detecting airflow direction was workable immediately after the molt, independent from the behavioral maturation. The post-molting development of the wind-elicited behavior was considered to result not simply from maturation of the exoskeleton or musculature because the escape response to heat-shock stimulus did not change after the molt. No effect of a temporal immobilization after the imaginal molt on the maturation of the wind-elicited behavior also implies that the maturation may be innately programmed without experience of locomotion. PMID- 29030317 TI - Biopsy Core Features are Poor Predictors of Adverse Pathology in Men with Grade Group 1 Prostate Cancer. AB - PURPOSE: Active surveillance is often restricted to patients with low risk prostate cancer who have 3 or fewer positive cores. We aimed to identify predictors of adverse pathology results for low risk prostate cancer treated with radical prostatectomy and determine whether a threshold number of positive cores could help the decision process for active surveillance. MATERIALS AND METHODS: A total of 3,359 men with low risk prostate cancer underwent radical prostatectomy between January 2000 and August 2016. We analyzed the relationship between biopsy core features and adverse pathology at radical prostatectomy, defined as Grade Group 3 or greater, seminal vesicle invasion or lymph node involvement. RESULTS: Of the 171 cases (5.1%) with adverse pathology findings at radical prostatectomy 144 (4.3%) were upgraded to Grade Group 3 or greater, 31 (0.9%) had seminal vesicle invasion and 15 (0.4%) had lymph node involvement. Prostate specific antigen and patient age were the only predictors of adverse pathology results. There was no significant association with the number of positive cores, the total mm of cancer or the maximum percent of cancer in any core. When we expanded the definition of adverse pathology to include Grade Group 2 and extraprostatic extension, the association between core features and outcome was statistically significant but clinically weak, and with no evidence of threshold effects. CONCLUSIONS: There is little basis for excluding patients with otherwise low risk prostate cancer on biopsy from active surveillance based on criteria such as the number of positive cores or the maximum cancer involvement of biopsy cores. PMID- 29030318 TI - The Association between Mortality and Distance to Treatment Facility in Patients with Muscle Invasive Bladder Cancer. AB - PURPOSE: Regionalization of bladder cancer treatment is suggested to improve quality of care. As an unintended consequence some patients travel farther for care with unknown implications on outcomes. We characterized the relationship between distance and overall mortality in patients with invasive bladder cancer and those who underwent radical cystectomy. MATERIALS AND METHODS: We performed a retrospective cohort study using NCDB (National Cancer Database) from 2004 to 2012 to identify patients with muscle invasive bladder cancer (cT2a-T4 N0 M0). We also extracted a subgroup of patients who underwent radical cystectomy. Multivariate Cox proportional hazards and multinomial logistic regression analyses were performed in each group, controlling for demographic, clinical, hospital and geographic factors. RESULTS: For 34,729 patients with muscle invasive bladder cancer traveling farther for treatment was associated with a lower probability of overall mortality (referent less than 12.5 miles, 12.5 to 49.9 miles HR 0.96, 95% CI 0.92-0.99 and 50 to 249.9 miles HR 0.91, 95% CI 0.86 0.96). This was significant for patients with cT2 disease and those treated at academic centers (p <=0.05). For 11,059 patients who underwent radical cystectomy this trend did not reach significance. However, longer distance was associated with surgery at a high volume institution and receipt of neoadjuvant chemotherapy (each p <0.001). CONCLUSIONS: Patients who traveled farther for bladder cancer treatment did not experience inferior survival outcomes and traveling to academic institutions was associated with reduced mortality. For patients who undergo cystectomy this relationship was equivocal, although longer distance was associated with receiving neoadjuvant chemotherapy or surgery at a high volume facility. These findings may reflect a complex association of regionalization of bladder cancer care with patient individual health and health care seeking behavior. PMID- 29030319 TI - Coordination of different ligands to copper(II) and cobalt(III) metal centers enhances Zika virus and dengue virus loads in both arthropod cells and human keratinocytes. AB - : Trace elements such as copper and cobalt have been associated with virus-host interactions. However, studies to show the effect of conjugation of copper(II) or cobalt(III) metal centers to thiosemicarbazone ligand(s) derived from either food additives or mosquito repellent such as 2-acetylethiazole or citral, respectively, on Zika virus (ZIKV) or dengue virus (serotype 2; DENV2) infections have not been explored. In this study, we show that four compounds comprising of thiosemicarbazone ligand derived from 2-acetylethiazole viz., (E)-N-ethyl-2-[1 (thiazol-2-yl)ethylidene]hydrazinecarbothioamide (acetylethTSC) (compound 1), a copper(II) complex with acetylethTSC as a ligand (compound 2), a thiosemicarbazone ligand-derived from citral (compound 3) and a cobalt(III) complex with a citral-thiosemicarbazone ligand (compound 4) increased DENV2 and ZIKV replication in both mosquito C6/36 cells and human keratinocytes (HaCaT cells). Treatment of both cell lines with compounds 2 or 4 showed increased dengue viral titers at all three tested doses. Enhanced dengue viral plaque formation was also noted at the tested dose of 100MUM, suggesting higher production of infectious viral particles. Treatment with the compounds 2 or 4 enhanced ZIKV and DENV2 RNA levels in HeLa cell line and primary cultures of mouse bone marrow derived dendritic cells. Also, pre- or post treatments with conjugated compounds 2 or 4 showed higher loads of ZIKV or DENV2 envelope (E) protein in HaCaT cells. No changes in loads of E-protein were found in ZIKV infected C6/36 cells, when compounds were treated after infection. In addition, we tested bis(1,10-phenanthroline)copper(II) chloride ([Cu(phen)2]Cl2, (compound 5) and tris(1,10-phenanthroline)cobalt(III) chloride ([Co(phen)3]Cl3, (compound 6) that also showed enhanced DENV2 loads. Also, we found that copper(II) chloride dehydrate (CuCl2.2H2O) or cobalt(II) chloride hexahydrate (CoCl2.6H2O) alone had no effects as "free" cations. Taken together, these findings suggest that use of Cu(II) or Co(III) conjugation to organic compounds, in insect repellents and/or food additives could enhance DENV2/ZIKV loads in human cells and perhaps induce pathogenesis in infected individuals or individuals pre-exposed to such conjugated complexes. IMPORTANCE: Mosquito-borne diseases are of great concern to the mankind. Use of chemicals/repellents against mosquito bites and transmission of microbes has been the topic of interest for many years. Here, we show that thiosemicarbazone ligand(s) derived from 2-acetylethiazole or citral or 1,10 phenanthroline upon conjugation with copper(II) or cobalt(III) metal centers enhances dengue virus (serotype 2; DENV2) and/or Zika virus (ZIKV) infections in mosquito, mouse and human cells. Enhanced ZIKV/DENV2 capsid mRNA or envelope protein loads were evident in mosquito cells and human keratinocytes, when treated with compounds before/after infections. Also, treatment with copper(II) or cobalt(III) conjugated compounds increased viral titers and number of plaque formations. These studies suggest that conjugation of compounds in repellents/essential oils/natural products/food additives with copper(II) or cobalt(III) metal centers may not be safe, especially in tropical and subtropical places, where several dengue infection cases and deaths are reported annually or in places with increased ZIKV caused microcephaly. PMID- 29030320 TI - ATP released from astrocytes modulates action potential threshold and spontaneous excitatory postsynaptic currents in the neonatal rat prefrontal cortex. AB - Maternal immune activation during pregnancy is a risk factor for neurodevelopmental disorders, such as schizophrenia; however, a full mechanistic understanding has yet to be established. The activity of a transient cell population, the subplate neurons, is critical for the development of cortical inhibition and functional thalamocortical connections. Sensitivity of these cells to factors released during inflammation, therefore, may offer a link between maternal immune activation and the aberrant cortical development underlying some neuropsychiatric disorders. An elevated extracellular ATP concentration is associated with inflammation and has been shown to have an effect on neuronal activity. Here, we investigated the effect of ATP on the electrophysiological properties of subplate neurons. Exogenous ATP increased the frequency and amplitude of spontaneous excitatory postsynaptic currents (sEPSCs) at micromolar concentrations. Further, ATP released by astrocytes activated by the PAR-1 agonist, TFLLR-NH2, also increased the amplitude and frequency of sEPSCs in subplate neurons. The electrophysiological properties of subplate neurons recorded from prefrontal cortical (PFC) slices from neonatal rats were also disrupted in a maternal immune activation rat model of schizophrenia, with a suramin-sensitive increase in frequency and amplitude of sEPSCs. An alternative neurodevelopmental rat model of schizophrenia, MAM-E17, which did not rely on maternal immune activation, however, showed no change in subplate neuron activity. Both models were validated with behavioral assays, showing schizophrenia-like endophenotypes in young adulthood. The purinergic modulation of subplate neuron activity offers a potential explanatory link between maternal immune activation and disruptions in cortical development that lead to the emergence of neuropsychiatric disorders. PMID- 29030321 TI - Destination specific risks of acquisition of notifiable food- and waterborne infections or sexually transmitted infections among Finnish international travellers, 1995-2015. AB - BACKGROUND: Overnight international travels made by Finns more than doubled during 1995-2015. To estimate risks and observe trends of travel-related notifiable sexually transmitted and food- and water-borne infections (STIs and FWIs) among travellers, we analysed national reports of gonorrhoea, syphilis, hepatitis A, shigellosis, campylobacteriosis and salmonellosis cases and related them to travel statistics. METHOD: Cases notified as travel-related to the Finnish infectious diseases register were used as numerators and overnight stays of Statistics Finland surveys as denominator. We calculated overall risks (per 100,000 travellers) and assessed trends (using regression model) in various geographic regions. RESULTS: Of all travel-related cases during 1995-2015, 2304 were STIs and 70,929 FWIs. During 2012-2015, Asia-Oceania showed highest risk estimates for gonorrhoea (11.0; 95%CI, 9.5-13), syphilis (1.4; 0.93-2.1), salmonellosis (157; 151-164), and campylobacteriosis (135; 129-141), and Africa for hepatitis A (4.5; 2.5-7.9), and shigellosis (35; 28-43). When evaluating at country level, the highest risks of infections was found in Thailand, except for hepatitis A ranking Hungary the first. During 2000-2011, significantly decreasing trends occurred for most FWIs particularly in the European regions and for STIs in Russia-Baltics. CONCLUSIONS: Our findings can be used in targeting pre-travel advice, which should also cover those visiting Thailand or European hepatitis A risk areas. PMID- 29030322 TI - Pain Affects Visual Orientation: an Eye-Tracking Study. AB - : Because of its unique evolutionary relevance, it is understood that pain automatically attracts attention. So far, such attentional bias has mainly been shown for pain-related stimuli whereas little is known about shifts in attentional focus after actual painful stimulation. This study investigated attentional shifts by assessing eye movements into the direction of painful stimulation. Healthy participants were presented either a blank screen or a picture showing a natural scene while painful electrical stimuli were applied to the left or right hand. In general, painful stimulation reduced exploratory behavior as reflected by less and slower saccades as well as fewer and longer fixations. Painful stimulation on the right hand induced a rightward bias (ie, increased initial saccades, total number and duration of fixations to the right hemifield of the screen). Pain applied to the left hand as well as no pain induced a leftward bias that was largest for the direction of first saccades. These findings are in line with previous observations of attentional biases toward pain-related information and highlight eye tracking as a valuable tool to assess involuntary attentional consequences of pain. Future studies are needed to investigate how the observed changes in eye movements relate to pain-induced changes in perception and cognition. PERSPECTIVE: The study investigated pain induced attentional shifts in terms of reflexive eye movements. This attention capturing quality of pain should be examined in chronic pain conditions because it might contribute to the cognitive impairments often observed in chronic pain patients. PMID- 29030323 TI - Gender and the Association between Long-Term Prescription Opioid Use and New Onset Depression. AB - : Women have a higher prevalence of chronic noncancer pain conditions and report more severe pain, yet, it is not known if the association between long-term opioid analgesic use (OAU) and risk of a new depression episode (NDE) differs according to gender. We analyzed patient data from the Veterans Health Administration (VHA; 2000-2012; n = 70,997) and a large private-sector health care organization (2003-2012; n = 22,981) to determine whether long-term OAU and risk of NDE differed according to gender. Patients were free of depression and OAU for 2 years before baseline. OAU duration was defined as 1 to 30, 31 to 90 and more than 90 days, and NDE was defined according to International Classification of Diseases, Ninth Revision codes. Gender-stratified Cox proportional hazard models were used to estimate hazard ratios (HRs). Propensity scores and subsequent inverse probability of treatment weighting controlled for confounding. In the VHA, more than 90 compared with 1- to 30-day OAU was more strongly associated with NDE among female than male patients (female: HR = 1.79 [95% confidence interval (CI), 1.45-2.22] vs male HR = 1.25 [95% CI, 1.16-1.34], P = .002). In private sector patients, there was no gender difference in the association between more than 90-day OAU and NDE (female HR = 1.97 [95% CI, 1.64 2.37] vs male HR = 1.99 [95% CI, 1.44-2.74]). Risk of NDE after long-term OAU is similar in men and women in private sector patients but may differ for VHA patients. Future prospective studies are needed to identify mechanisms for the association between longer OAU and NDE. PERSPECTIVE: Existing research is mixed regarding gender differences in outcomes after long-term prescription opioid use. This study found both genders have increased risk of an NDE after more than 90 days of opioid use. Women and men may benefit from closer monitoring of mood associated with chronic opioid use. PMID- 29030324 TI - Exploring the Therapeutic Affordances of Self-Harm Online Support Communities: An Online Survey of Members. AB - BACKGROUND: A growing number of online communities have been established to support those who self-harm. However, little is known about the therapeutic affordances arising from engagement with these communities and resulting outcomes. OBJECTIVE: The aim of this study was to explore the presence of therapeutic affordances as reported by members of self-harm online support communities. METHODS: In total, 94 respondents (aged 13-63 years, mean=23.5 years; 94% female) completed an online survey exploring their experiences of engaging with a self-harm online support community. Respondents varied in terms of how long they had been accessing an online community, with 22% (21/94) accessing less than 1 year, 39% (37/94) 1 to 2 years, 14% (13/94) 2 to 3 years, and 24.5% (23/94) more than 3 years. Responses were analyzed using deductive thematic analysis. RESULTS: The results of our analysis describe each of the five therapeutic affordances that were present in the data, namely (1) connection, the ability to make contact with others who self-harm for the purposes of mutual support and in so doing reduce feelings of loneliness and isolation; (2) adaptation, that is, how use of online support varies in relation to the personal circumstances of the individual user; (3) exploration, that is, the ability to learn about self-harm and learn about strategies to reduce or stop self-harming behavior; (4) narration, that is, the ability to share experiences, as well as read about the experiences of others; and (5) self-presentation, that is, how and what users present about themselves to others in the online community. CONCLUSIONS: Our findings suggest that engagement with self-harm online support communities may confer a range of therapeutic benefits for some users, which may serve to minimize the psychosocial burden of self-harm and promote positive coping strategies. In addition, the online nature of the support available may be helpful to those who are unable to access face-to-face support. PMID- 29030325 TI - ADHD: Is There an App for That? A Suitability Assessment of Apps for the Parents of Children and Young People With ADHD. AB - BACKGROUND: Attention-deficit hyperactivity disorder (ADHD) is a highly comorbid disorder that can impact significantly on the individual and their family. ADHD is managed via pharmacological and nonpharmacological interventions. Parents also gain support from parent support groups, which may include chat rooms, as well as face-to-face meetings. With the growth of technology use over recent years, parents have access to more resources that ever before. A number of mobile apps have been developed to help parents manage ADHD in their children and young people. Unfortunately many of these apps are not evidence-based, and little is known of their suitability for the parents or whether they are helpful in ADHD management. OBJECTIVE: The aim of this study was to explore the (1) parents' views of the suitability of the top ten listed apps for parents of children and young people with ADHD and (2) the views of clinicians that work with them on the suitability and value of the apps. METHODS: The top 10 listed apps specifically targeted toward the parents of children and young people with ADHD were identified via the Google Play (n=5) and iTunes store (n=5). Interviews were then undertaken with 7 parents of children or young people with ADHD and 6 clinicians who specialize in working with this population to explore their opinions of the 10 apps identified and what they believe the key components are for apps to be suitable and valuable for this population. RESULTS: Four themes emerged from clinician and parent interviews: (1) the importance of relating to the app, (2) apps that address ADHD-related difficulties, (3) how the apps can affect family relationships, and (4) apps as an educational tool. Two additional themes emerged from the clinician interviews alone: monitoring ADHD symptoms and that apps should be practical. Parents also identified an additional theme: the importance of the technology. Overall, the characteristics of the current top 10 listed apps did not appear to match well to the views of our sample. CONCLUSIONS: Findings suggest that these apps may not fully meet the complex needs of this parent population. Further research is required to explore the value of apps with this population and how they can be tailored to their very specific needs. PMID- 29030326 TI - Consumer Health-Related Activities on Social Media: Exploratory Study. AB - BACKGROUND: Although a number of studies have investigated how consumers use social media for health-related purposes, there is a paucity of studies in the Australian context. OBJECTIVE: This study aimed to explore how Australian consumers used social media for health-related purposes, specifically how they identified social media platforms, which were used, and which health-related activities commonly took place. METHODS: A total of 5 focus groups (n=36 participants), each lasting 60 to 90 minutes, were conducted in the Sydney metropolitan area. The group discussions were audiorecorded and transcribed verbatim. The transcripts were coded line-by-line and thematically analyzed. RESULTS: Participants used general search engines to locate health-related social media platforms. They accessed a wide range of social media on a daily basis, using several electronic devices (in particular, mobile phones). Although privacy was a concern, it did not prevent consumers from fully engaging in social media for health-related purposes. Blogs were used to learn from other people's experiences with the same condition. Facebook allowed consumers to follow health related pages and to participate in disease-specific group discussions. Wikipedia was used for factual information about diseases and treatments. YouTube was accessed to learn about medical procedures such as surgery. No participant reported editing or contributing to Wikipedia or posting YouTube videos related to health topics. Twitter was rarely used for health-related purposes. Social media allowed consumers to obtain and provide disease and treatment-related information and social and emotional support for those living with the same condition. Most considered their participation as observational, but some also contributed (eg, responded to people's questions). CONCLUSIONS: Participants used a wide range of social media for health-related purposes. Medical information exchange (eg, disease and treatment) and social and emotional support were the cornerstones of their online activities. Social media appears to be used as a key tool to support disease self-management. PMID- 29030328 TI - Studying Acute Coronary Syndrome Through the World Wide Web: Experiences and Lessons. AB - This study details my viewpoint on the experiences, lessons, and assessments of conducting a national study on care-seeking behavior for heart attack in the United States utilizing the World Wide Web. The Yale Heart Study (YHS) was funded by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health (NIH). Grounded on two prior studies, the YHS combined a Web based interview survey instrument; ads placed on the Internet; flyers and posters in public libraries, senior centers, and rehabilitation centers; information on chat rooms; a viral marketing strategy; and print ads to attract potential participants to share their heart attack experiences. Along the way, the grant was transferred from Ohio State University (OSU) to Yale University, and significant administrative, information technology, and personnel challenges ensued that materially delayed the study's execution. Overall, the use of the Internet to collect data on care-seeking behavior is very time consuming and emergent. The cost of using the Web was approximately 31% less expensive than that of face-to-face interviews. However, the quality of the data may have suffered because of the absence of some data compared with interviewing participants. Yet the representativeness of the 1154 usable surveys appears good, with the exception of a dearth of African American participants. PMID- 29030327 TI - The Effectiveness of eHealth Technologies on Weight Management in Pregnant and Postpartum Women: Systematic Review and Meta-Analysis. AB - BACKGROUND: The emergence and utilization of electronic health (eHealth) technologies has increased in a variety of health interventions. Exploiting the real-time advantages offered by mobile technologies during and after pregnancy has the potential to empower women and encourage behaviors that may improve maternal and child health. OBJECTIVE: The objective of this study was to assess the effectiveness of eHealth technologies for weight management during pregnancy and the postpartum period and to review the efficacy of eHealth technologies on health behaviors, specifically nutrition and physical activity. METHODS: A systematic search was conducted of the following databases: MEDLINE, EMBASE, Cochrane database of systematic reviews (CDSR), Cochrane central register of controlled trials (CENTRAL), CINAHL (Cumulative Index to Nursing and Allied Health Literature), and PsycINFO. The search included studies published from 1990 to July 5, 2016. All relevant primary studies that involved randomized controlled trials (RCTs), non-RCTs, before-and-after studies, historically controlled studies, and pilot studies were included. The study population was adult women of childbearing age either during pregnancy or the postpartum period. eHealth weight management intervention studies targeting physical activity, nutrition, or both, over a minimum 3-month period were included. Titles and abstracts, as well as full-text screening were conducted. Study quality was assessed using Cochrane's risk of bias tool. Data extraction was completed by a single reviewer, which was then verified by a second independent reviewer. Results were meta-analyzed to calculate pooled estimates of the effect, wherever possible. RESULTS: Overall, 1787 and 176 citations were reviewed at the abstract and full-text screening stages, respectively. A total of 10 studies met the inclusion criteria ranging from high to low risk of bias. Pooled estimates from studies of the effect for postpartum women resulted in a significant reduction in weight (-2.55 kg, 95% CI 3.81 to -1.28) after 3 to 12 months and six studies found a nonsignificant reduction in weight gain for pregnant women (-1.62 kg, 95% CI -3.57 to 0.33) at approximately 40 weeks. CONCLUSIONS: This review found evidence for benefits of eHealth technologies on weight management in postpartum women only. Further research is still needed regarding the use of these technologies during and after pregnancy. PMID- 29030331 TI - On OX40 and PD-1 Combination: Why Should OX40 Be First in Sequence? AB - The larger fraction of patients treated with immune checkpoint inhibitors remain nonresponding eventually. Combination of checkpoint inhibitor and costimulatory antibodies is thought additive, but for such effect, they may require to be given in the right sequence. Clin Cancer Res; 23(20); 5999-6001. (c)2017 AACRSee related article by Messenheimer et al., p. 6165. PMID- 29030332 TI - Genomics of Immunotherapy-Associated Hyperprogressors-Letter. PMID- 29030333 TI - Genomics of Immunotherapy-Associated Hyperprogressors-Response. PMID- 29030329 TI - Effect of a Website That Presents Patients' Experiences on Self-Efficacy and Patient Competence of Colorectal Cancer Patients: Web-Based Randomized Controlled Trial. AB - BACKGROUND: Patients often seek other patients' experiences with the disease. The Internet provides a wide range of opportunities to share and learn about other people's health and illness experiences via blogs or patient-initiated online discussion groups. There also exists a range of medical information devices that include experiential patient information. However, there are serious concerns about the use of such experiential information because narratives of others may be powerful and pervasive tools that may hinder informed decision making. The international research network DIPEx (Database of Individual Patients' Experiences) aims to provide scientifically based online information on people's experiences with health and illness to fulfill patients' needs for experiential information, while ensuring that the presented information includes a wide variety of possible experiences. OBJECTIVE: The aim is to evaluate the colorectal cancer module of the German DIPEx website krankheitserfahrungen.de with regard to self-efficacy for coping with cancer and patient competence. METHODS: In 2015, a Web-based randomized controlled trial was conducted using a two-group between subjects design and repeated measures. The study sample consisted of individuals who had been diagnosed with colorectal cancer within the past 3 years or who had metastasis or recurrent disease. Outcome measures included self-efficacy for coping with cancer and patient competence. Participants were randomly assigned to either an intervention group that had immediate access to the colorectal cancer module for 2 weeks or to a waiting list control group. Outcome criteria were measured at baseline before randomization and at 2 weeks and 6 weeks. RESULTS: The study randomized 212 persons. On average, participants were 54 (SD 11.1) years old, 58.8% (124/211) were female, and 73.6% (156/212) had read or heard stories of other patients online before entering the study, thus excluding any influence of the colorectal cancer module on krankheitserfahrungen.de. No intervention effects were found at 2 and 6 weeks after baseline. CONCLUSIONS: The results of this study do not support the hypothesis that the website studied may increase self-efficacy for coping with cancer or patient competencies such as self-regulation or managing emotional distress. Possible explanations may involve characteristics of the website itself, its use by participants, or methodological reasons. Future studies aimed at evaluating potential effects of websites providing patient experiences on the basis of methodological principles such as those of DIPEx might profit from extending the range of outcome measures, from including additional measures of website usage behavior and users' motivation, and from expanding concepts, such as patient competency to include items that more directly reflect patients' perceived effects of using such a website. TRIAL REGISTRATION: Clinicaltrials.gov NCT02157454; https://clinicaltrials.gov/ct2/show/NCT02157454 (Archived by WebCite at http://www.webcitation.org/6syrvwXxi). PMID- 29030334 TI - Individualized Pazopanib Dosing-Letter. PMID- 29030336 TI - Global project to map drug resistance and tackle "superbugs" is launched. PMID- 29030338 TI - Estrogen replacement attenuates stress-induced pressor responses through vasorelaxation via beta2-adrenoceptors in peripheral arteries of ovariectomized rats. AB - We examined whether chronic estrogen replacement has an inhibitory effect on stress-induced pressor responses via activation of beta2-adrenoceptor (AR) in peripheral arteries of ovariectomized rats. Female Wistar rats aged 9 wk were ovariectomized. After 4 wk, pellets containing either 17beta-estradiol (E2) or placebo (Pla) were subcutaneously implanted into the rats. After 4 wk of treatment, rats underwent cage-switch stress, and, in a separate experiment, a subset received an infusion of isoproterenol (ISO) with or without pretreatment with the beta1-AR blocker atenolol or the beta2-AR blocker butoxamine. In addition, the isolated mesenteric artery was used to assess the concentration related relaxing responses to ISO and the beta1- or beta2-AR mRNA level. The cage switch stress-induced pressor response was significantly attenuated in the E2 treated group compared with the Pla-treated group. Pretreatment with atenolol reduced blood pressure responses in both groups. However, butoxamine enhanced the pressor response only in the E2-treated group, resulting in no difference between the two groups. In addition, the intravenous ISO-induced depressor response was significantly enhanced in the E2-treated group compared with the Pla-treated group. Furthermore, the difference in the depressor response was abolished by pretreatment with butoxamine but not by atenolol. In the isolated mesenteric artery, butoxamine caused a rightward shift in ISO-induced concentration-related relaxation in the E2-treated group. The beta2-AR mRNA level in the mesenteric artery was higher in the E2-treated group than in the Pla-treated group. These results suggest that estrogen replacement attenuated the stress-induced pressor response probably by suppressing vasoconstriction via activation of beta2-ARs in peripheral arteries of ovariectomized rats. NEW & NOTEWORTHY In this study, we show, for the first time, that estrogen replacement has an inhibitory effect on the psychological stress-induced pressor response through vasorelaxation via beta2-adrenoceptors, probably due to overexpression of beta2-adrenoceptor mRNA, in peripheral arteries of ovariectomized rats. PMID- 29030335 TI - Single-cell RNA-seq reveals a distinct transcriptome signature of aneuploid hematopoietic cells. AB - Cancer cells frequently exhibit chromosomal abnormalities. Specific cytogenetic aberrations often are predictors of outcome, especially in hematologic neoplasms, such as monosomy 7 in myeloid malignancies. The functional consequences of aneuploidy at the cellular level are difficult to assess because of a lack of convenient markers to distinguish abnormal from diploid cells. We performed single-cell RNA sequencing (scRNA-seq) to study hematopoietic stem and progenitor cells from the bone marrow of 4 healthy donors and 5 patients with bone marrow failure and chromosome gain or loss. In total, transcriptome sequences were obtained from 391 control cells and 588 cells from patients. We characterized normal hematopoiesis as binary differentiation from stem cells to erythroid and myeloid-lymphoid pathways. Aneuploid cells were distinguished from diploid cells in patient samples by computational analyses of read fractions and gene expression of individual chromosomes. We confirmed assignment of aneuploidy to individual cells quantitatively, by copy-number variation, and qualitatively, by loss of heterozygosity. When we projected patients' single cells onto the map of normal hematopoiesis, diverse patterns were observed, broadly reflecting clinical phenotypes. Patients' monosomy 7 cells showed downregulation of genes involved in immune response and DNA damage checkpoint and apoptosis pathways, which may contribute to the clonal expansion of monosomy 7 cells with accumulated gene mutations. scRNA-seq is a powerful technique through which to infer the functional consequences of chromosome gain and loss and explore gene targets for directed therapy. PMID- 29030339 TI - Muscle alpha-adrenergic responsiveness during exercise and ATP-induced vasodilation in chronic obstructive pulmonary disease patients. AB - : Sympathetic vasoconstriction is blunted in exercising muscle (functional sympatholysis) but becomes attenuated with age. We tested the hypothesis that functional sympatholysis is further impaired in chronic obstructive pulmonary disease (COPD) patients. We determined leg blood flow and calculated leg vascular conductance (LVC) during 1) femoral-arterial Tyramine infusion (evokes endogenous norepinephrine release, 1 umol.min-1.kg leg mass-1), 2) one-legged knee extensor exercise with and without Tyramine infusion [10 W and 20% of maximal workload (WLmax)], 3) ATP (0.05 umol.min-1.kg leg mass-1) and Tyramine infusion, and 4) incremental ATP infusions (0.05, 0.3, and 3.0 umol.min-1.kg leg mass-1). We included 10 patients with moderate to severe COPD and 8 age-matched healthy control subjects. Overall, leg blood flow and LVC were lower in COPD patients during exercise ( P < 0.05). Tyramine reduced LVC in both groups at 10-W exercise (COPD: -3 +/- 1 ml.min-1.mmHg-1 and controls: -3 +/- 1 ml.min-1.mmHg-1, P < 0.05) and 20% WLmax (COPD: -4 +/- 1 ml.min-1.mmHg-1 and controls: -3 +/- 1 ml.min 1.mmHg-1, P < 0.05) with no difference between groups. Incremental ATP infusions induced dose-dependent vasodilation with no difference between groups, and, in addition, the vasoconstrictor response to Tyramine infused together with ATP was not different between groups (COPD: -0.03 +/- 0.01 l.min-1.kg leg mass-1 vs. CONTROLS: -0.04 +/- 0.01 l.min-1.kg leg mass-1, P > 0.05). Compared with age matched healthy control subjects, the vasodilatory response to ATP is intact in COPD patients and their ability to blunt sympathetic vasoconstriction (functional sympatholysis) as evaluated by intra-arterial Tyramine during exercise or ATP infusion is maintained. NEW & NOTEWORTHY The ability to blunt sympathetic vasoconstriction in exercising muscle and ATP-induced dilation in chronic obstructive pulmonary disease patients remains unexplored. Chronic obstructive pulmonary disease patients demonstrated similar sympathetic vasoconstriction in response to intra-arterial Tyramine during exercise and ATP-induced vasodilation compared with age-matched healthy control subjects. PMID- 29030340 TI - microRNA-206 correlates with left ventricular function after transcatheter aortic valve implantation. AB - Transcatheter aortic valve implantation (TAVI) is the method of choice in patients with high risk or contraindications for conventional aortic valve replacement. However, it is not well understood which parameters predict the overall cardiac function postprocedurally. miRNAs are small noncoding RNA molecules that repress gene expression by different mechanisms and can also be detected in the blood. Recent studies have shown that miRNAs detected in the blood may serve as sensitive and specific biomarkers in various diseases; therefore, we examined the levels of different microRNAs in the serum of patients undergoing TAVI. We thereby intended to find potential predictors for cardiac function after TAVI. Serum from patients with aortic valve disease was obtained at five different points: before the TAVI procedure, at days 1 and 3 after the TAVI procedure, and the day of dischargement and after a period of 3 mo. We next performed quantitative real-time PCRs to examine the samples for changes in the level of miRNAs previously described as cardiac enriched. Our results show that the level of miR-206 in the serum of patients after TAVI correlated negatively with the left ventricular ejection fraction of individual patients. We found left ventricular function to be better in patients with lower levels of miR-206 after implantation of the new valve. A decrease in the serum level of miR-206 may be linked to changes in cardiac function of patients after TAVI. Further studies are necessary to test the miRNA for its potential value as a prognostic marker. NEW & NOTEWORTHY This study is the first to investigate novel miRNA-based biomarkers within the context of transcatheter aortic valve implantation. miRNA-206 proved to correlate inversely with the postprocedural left ventricular ejection fraction of patients. PMID- 29030341 TI - Macrophage overexpression of matrix metalloproteinase-9 in aged mice improves diastolic physiology and cardiac wound healing after myocardial infarction. AB - Matrix metalloproteinase (MMP)-9 increases in the myocardium with advanced age and after myocardial infarction (MI). Because young transgenic (TG) mice overexpressing human MMP-9 only in macrophages show better outcomes post-MI, whereas aged TG mice show a worse aging phenotype, we wanted to evaluate the effect of aging superimposed on MI to see if the detrimental effect of aging counteracted the benefits of macrophage MMP-9 overexpression. We used 17- to 28 mo-old male and female C57BL/6J wild-type (WT) and TG mice ( n = 10-21 mice/group) to evaluate the effects of aging superimposed on MI. Despite similar infarct areas and mortality rates at day 7 post-MI, aging TG mice showed improved diastolic properties and remodeling index compared with WT mice (both P < 0.05). Macrophage numbers were higher in TG than WT mice at days 0 and 7 post-MI, and the post-MI increase was due to elevated cluster of differentiation 18 protein levels (all P < 0.05). RNA sequencing analysis of cardiac macrophages isolated from day 7 post-MI infarcts identified 1,276 statistically different (all P < 0.05) genes (994 increased and 282 decreased in TG mice). Reduced expression of vascular endothelial growth factor A, platelet-derived growth factor subunit A, and transforming growth factor-beta3, along with elevated expression of tissue inhibitor of MMP-4, in macrophages revealed mechanisms of indirect downstream effects on fibroblasts and neovascularization. While collagen accumulation was enhanced in TG mice compared with WT mice at days 0 and 7 post-MI ( P < 0.05 for both), the post-MI collagen cross-linking ratio was higher in WT mice ( P < 0.05), consistent with increased diastolic volumes. Vessel numbers [by Griffonia ( Bandeiraea) simplicifolia lectin I staining] were decreased in TG mice compared with WT mice at days 0 and 7 post-MI ( P < 0.05 for both). In conclusion, macrophage-derived MMP-9 improved post-MI cardiac wound healing through direct and indirect mechanisms to improve diastolic physiology and remodeling. NEW & NOTEWORTHY Aging mice with macrophage overexpression of matrix metalloproteinase 9 have increased macrophage numbers 7 days after myocardial infarction, resulting in improved diastolic physiology and left ventricular remodeling through effects on cardiac wound healing. PMID- 29030342 TI - Sex-specific impact of aging on the blood pressure response to exercise. AB - An exaggerated blood pressure (BP) response to exercise has been linked to cardiovascular disease, but little is known about the impact of age and sex on this response. Therefore, this study examined the hemodynamic and skeletal muscle metabolic response to dynamic plantar flexion exercise, at 40% of maximum plantar flexion work rate, in 40 physical activity-matched young (23 +/- 1 yr, n = 20) and old (73 +/- 2 yr, n = 20), equally distributed, male and female subjects. Central hemodynamics and BP (finometer), popliteal artery blood flow (Doppler ultrasound), and skeletal muscle metabolism (31P-magnetic resonance spectroscopy) were measured during 5 min of plantar flexion exercise. Popliteal artery blood flow and high-energy phosphate responses to exercise were not affected by age or sex, whereas aging, independent of sex, attenuated stroke volume and cardiac output responses. Systolic BP and mean arterial pressure responses were exaggerated in old women (Delta42 +/- 4 and Delta28 +/- 3 mmHg, respectively), with all other groups exhibiting similar increases in systolic BP (old men: Delta27 +/- 8 mmHg, young men: Delta27 +/- 3 mmHg, and young women: Delta22 +/- 3 mmHg) and mean arterial pressure (old men: Delta15 +/- 4 mmHg, young men: Delta19 +/- 2 mmHg, and young women: Delta17 +/- 2 mmHg). Interestingly, the exercise induced change in systemic vascular resistance in old women (?0.8 +/- 1.0 mmHg.l 1.min-1) was augmented compared with young women and young and old men (?-2.8 +/- 0.5, ?-1.6 +/- 0.6, and ?-3.18 +/- 1.4 mmHg.l-1.min-1, respectively, P < 0.05). Thus, in combination, advancing age and female sex results in an exaggerated BP response to exercise, likely the result of a failure to reduce systemic vascular resistance. NEW & NOTEWORTHY An exaggerated blood pressure response to exercise has been linked to cardiovascular disease; however, little is known about how age and sex impact this response in healthy individuals. During dynamic exercise, older women exhibited an exaggerated blood pressure response driven by an inability to lower systemic vascular resistance. PMID- 29030343 TI - Carbohydrate restriction with postmeal walking effectively mitigates postprandial hyperglycemia and improves endothelial function in type 2 diabetes. AB - Postprandial hyperglycemia has deleterious effects on endothelial function. Restricting carbohydrate intake and postmeal walking have each been shown to reduce postprandial hyperglycemia, but their combination and subsequent effects on endothelial function have not been investigated. Here, we sought to examine the effect of blunting postprandial hyperglycemia by following a low-carbohydrate diet, with or without postmeal walking exercise, on markers of vascular health in type 2 diabetes (T2D). In a randomized crossover design, individuals with T2D ( n = 11) completed three 4-day controlled diet interventions consisting of 1) low carbohydrate diet alone (LC), 2) low-carbohydrate diet with 15-min postmeal walks (LC + Ex), and 3) low-fat control diet (CON). Fasting blood samples and brachial artery flow-mediated dilation (%FMD) were measured before and after each intervention. Total circulating microparticles (MPs), endothelial MPs, platelet MPs, monocyte-platelet aggregates, and adhesion molecules were assessed as biomarkers of vascular health. There was a significant condition * time interaction for %FMD ( P = 0.01), with post hoc tests revealing improved %FMD after LC + Ex (+0.8 +/- 1.0%, P = 0.02), with no change after LC or CON. Endothelial MPs were significantly reduced with the LC diet by ~45% (from 99 +/- 60 to 44 +/- 31 MPs/MUl, P = 0.02), with no change after LC + Ex or CON (interaction: P = 0.04). Total MPs were lower (main effect time: P = 0.02), whereas monocyte-platelet aggregates were higher (main effect time: P < 0.01) after all interventions. Plasma adhesion molecules and C-reactive protein were unaltered. Attenuating postprandial hyperglycemic excursions using a low carbohydrate diet combined with postmeal walking appears to be an effective strategy to improve endothelial function in individuals with T2D. NEW & NOTEWORTHY Carbohydrate restriction and postmeal walking lower postprandial hyperglycemia in individuals with type 2 diabetes. Here, we show that the combination significantly improved endothelial function and that carbohydrate restriction alone reduced circulating endothelial microparticles in individuals with type 2 diabetes. Listen to this article's corresponding podcast at http://ajpheart.podbean.com/e/low-carb-diet-and-exercise-improve-endothelial health/ . PMID- 29030344 TI - Cell Type-Specific Chromatin Signatures Underline Regulatory DNA Elements in Human Induced Pluripotent Stem Cells and Somatic Cells. AB - RATIONALE: Regulatory DNA elements in the human genome play important roles in determining the transcriptional abundance and spatiotemporal gene expression during embryonic heart development and somatic cell reprogramming. It is not well known how chromatin marks in regulatory DNA elements are modulated to establish cell type-specific gene expression in the human heart. OBJECTIVE: We aimed to decipher the cell type-specific epigenetic signatures in regulatory DNA elements and how they modulate heart-specific gene expression. METHODS AND RESULTS: We profiled genome-wide transcriptional activity and a variety of epigenetic marks in the regulatory DNA elements using massive RNA-seq (n=12) and ChIP-seq (chromatin immunoprecipitation combined with high-throughput sequencing; n=84) in human endothelial cells (CD31+CD144+), cardiac progenitor cells (Sca-1+), fibroblasts (DDR2+), and their respective induced pluripotent stem cells. We uncovered 2 classes of regulatory DNA elements: class I was identified with ubiquitous enhancer (H3K4me1) and promoter (H3K4me3) marks in all cell types, whereas class II was enriched with H3K4me1 and H3K4me3 in a cell type-specific manner. Both class I and class II regulatory elements exhibited stimulatory roles in nearby gene expression in a given cell type. However, class I promoters displayed more dominant regulatory effects on transcriptional abundance regardless of distal enhancers. Transcription factor network analysis indicated that human induced pluripotent stem cells and somatic cells from the heart selected their preferential regulatory elements to maintain cell type-specific gene expression. In addition, we validated the function of these enhancer elements in transgenic mouse embryos and human cells and identified a few enhancers that could possibly regulate the cardiac-specific gene expression. CONCLUSIONS: Given that a large number of genetic variants associated with human diseases are located in regulatory DNA elements, our study provides valuable resources for deciphering the epigenetic modulation of regulatory DNA elements that fine-tune spatiotemporal gene expression in human cardiac development and diseases. PMID- 29030345 TI - Runx1 Deficiency Protects Against Adverse Cardiac Remodeling After Myocardial Infarction. AB - BACKGROUND: Myocardial infarction (MI) is a leading cause of heart failure and death worldwide. Preservation of contractile function and protection against adverse changes in ventricular architecture (cardiac remodeling) are key factors to limiting progression of this condition to heart failure. Consequently, new therapeutic targets are urgently required to achieve this aim. Expression of the Runx1 transcription factor is increased in adult cardiomyocytes after MI; however, the functional role of Runx1 in the heart is unknown. METHODS: To address this question, we have generated a novel tamoxifen-inducible cardiomyocyte-specific Runx1-deficient mouse. Mice were subjected to MI by means of coronary artery ligation. Cardiac remodeling and contractile function were assessed extensively at the whole-heart, cardiomyocyte, and molecular levels. RESULTS: Runx1-deficient mice were protected against adverse cardiac remodeling after MI, maintaining ventricular wall thickness and contractile function. Furthermore, these mice lacked eccentric hypertrophy, and their cardiomyocytes exhibited markedly improved calcium handling. At the mechanistic level, these effects were achieved through increased phosphorylation of phospholamban by protein kinase A and relief of sarco/endoplasmic reticulum Ca2+-ATPase inhibition. Enhanced sarco/endoplasmic reticulum Ca2+-ATPase activity in Runx1 deficient mice increased sarcoplasmic reticulum calcium content and sarcoplasmic reticulum-mediated calcium release, preserving cardiomyocyte contraction after MI. CONCLUSIONS: Our data identified Runx1 as a novel therapeutic target with translational potential to counteract the effects of adverse cardiac remodeling, thereby improving survival and quality of life among patients with MI. PMID- 29030346 TI - Diagnostic Accuracy of the Aortic Dissection Detection Risk Score Plus D-Dimer for Acute Aortic Syndromes: The ADvISED Prospective Multicenter Study. AB - BACKGROUND: Acute aortic syndromes (AASs) are rare and severe cardiovascular emergencies with unspecific symptoms. For AASs, both misdiagnosis and overtesting are key concerns, and standardized diagnostic strategies may help physicians to balance these risks. D-dimer (DD) is highly sensitive for AAS but is inadequate as a stand-alone test. Integration of pretest probability assessment with DD testing is feasible, but the safety and efficiency of such a diagnostic strategy are currently unknown. METHODS: In a multicenter prospective observational study involving 6 hospitals in 4 countries from 2014 to 2016, consecutive outpatients were eligible if they had >=1 of the following: chest/abdominal/back pain, syncope, perfusion deficit, and if AAS was in the differential diagnosis. The tool for pretest probability assessment was the aortic dissection detection risk score (ADD-RS, 0-3) per current guidelines. DD was considered negative (DD-) if <500 ng/mL. Final case adjudication was based on conclusive diagnostic imaging, autopsy, surgery, or 14-day follow-up. Outcomes were the failure rate and efficiency of a diagnostic strategy for ruling out AAS in patients with ADD RS=0/DD- or ADD-RS <=1/DD-. RESULTS: A total of 1850 patients were analyzed. Of these, 438 patients (24%) had ADD-RS=0, 1071 patients (58%) had ADD-RS=1, and 341 patients (18%) had ADD-RS >1. Two hundred forty-one patients (13%) had AAS: 125 had type A aortic dissection, 53 had type B aortic dissection, 35 had intramural aortic hematoma, 18 had aortic rupture, and 10 had penetrating aortic ulcer. A positive DD test result had an overall sensitivity of 96.7% (95% confidence interval [CI], 93.6-98.6) and a specificity of 64% (95% CI, 61.6-66.4) for the diagnosis of AAS; 8 patients with AAS had DD-. In 294 patients with ADD-RS=0/DD-, 1 case of AAS was observed. This yielded a failure rate of 0.3% (95% CI, 0.1-1.9) and an efficiency of 15.9% (95% CI, 14.3-17.6) for the ADD-RS=0/DD- strategy. In 924 patients with ADD-RS <=1/DD-, 3 cases of AAS were observed. This yielded a failure rate of 0.3% (95% CI, 0.1-1) and an efficiency of 49.9% (95% CI, 47.7 52.2) for the ADD-RS <=1/DD- strategy. CONCLUSIONS: Integration of ADD-RS (either ADD-RS=0 or ADD-RS <=1) with DD may be considered to standardize diagnostic rule out of AAS. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT02086136. PMID- 29030353 TI - RAD50 Expression Is Associated with Poor Clinical Outcomes after Radiotherapy for Resected Non-small Cell Lung Cancer. AB - Purpose: Although postoperative radiotherapy is often used to maintain local control after surgical resection and chemotherapy for locally advanced non-small cell lung cancer (NSCLC), both locoregional failure and distant metastasis remain problematic. The mechanisms of therapeutic resistance remain poorly understood.Experimental Design: We used reverse-phase protein arrays (RPPA) to profile the baseline expression of 170 total and phosphorylated proteins in 70 NSCLC cell lines to categorize pathways that may contribute to radiation resistance. Significant markers identified by RPPA were further analyzed in tissue microarrays (TMA) of specimens from 127 patients with NSCLC who had received surgery before receiving postoperative radiotherapy. Cox regression analysis and log-rank tests were used to identify potential predictive factors. We then validated the biological function of the markers in NSCLC cell lines in vitroResults: Of the 170 proteins or phospho-proteins profiled, a subset of 12 proteins was found to correlate with radiation response parameters. TMA analysis of the 12 proteins showing the greatest differences in expression in the RPPA analysis demonstrated that RAD50 had the strongest correlation with distant relapse-free survival, locoregional relapse-free survival, and disease-free survival in patients with NSCLC. We confirmed that knockdown of RAD50 sensitized NSCLC cells to radiation and that upregulation of RAD50 increased radioresistance in in vitro experiments.Conclusions: Upregulated RAD50 may be a predictor of radioresistance in patients with lung cancer who received radiotherapy. Clin Cancer Res; 24(2); 341-50. (c)2017 AACR. PMID- 29030347 TI - Extracellular Matrix Proteomics Reveals Interplay of Aggrecan and Aggrecanases in Vascular Remodeling of Stented Coronary Arteries. AB - BACKGROUND: Extracellular matrix (ECM) remodeling contributes to in-stent restenosis and thrombosis. Despite its important clinical implications, little is known about ECM changes post-stent implantation. METHODS: Bare-metal and drug eluting stents were implanted in pig coronary arteries with an overstretch under optical coherence tomography guidance. Stented segments were harvested 1, 3, 7, 14, and 28 days post-stenting for proteomics analysis of the media and neointima. RESULTS: A total of 151 ECM and ECM-associated proteins were identified by mass spectrometry. After stent implantation, proteins involved in regulating calcification were upregulated in the neointima of drug-eluting stents. The earliest changes in the media were proteins involved in inflammation and thrombosis, followed by changes in regulatory ECM proteins. By day 28, basement membrane proteins were reduced in drug-eluting stents in comparison with bare metal stents. In contrast, the large aggregating proteoglycan aggrecan was increased. Aggrecanases of the ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) family contribute to the catabolism of vascular proteoglycans. An increase in ADAMTS-specific aggrecan fragments was accompanied by a notable shift from ADAMTS1 and ADAMTS5 to ADAMTS4 gene expression after stent implantation. Immunostaining in human stented coronary arteries confirmed the presence of aggrecan and aggrecan fragments, in particular, at the contacts of the stent struts with the artery. Further investigation of aggrecan presence in the human vasculature revealed that aggrecan and aggrecan cleavage were more abundant in human arteries than in human veins. In addition, aggrecan synthesis was induced on grafting a vein into the arterial circulation, suggesting an important role for aggrecan in vascular plasticity. Finally, lack of ADAMTS-5 activity in mice resulted in an accumulation of aggrecan and a dilation of the thoracic aorta, confirming that aggrecanase activity regulates aggrecan abundance in the arterial wall and contributes to vascular remodeling. CONCLUSIONS: Significant differences were identified by proteomics in the ECM of coronary arteries after bare-metal and drug-eluting stent implantation, most notably an upregulation of aggrecan, a major ECM component of cartilaginous tissues that confers resistance to compression. The accumulation of aggrecan coincided with a shift in ADAMTS gene expression. This study provides the first evidence implicating aggrecan and aggrecanases in the vascular injury response after stenting. PMID- 29030355 TI - A Prognostic Bio-Model Based on SQSTM1 and N-Stage Identifies Nasopharyngeal Carcinoma Patients at High Risk of Metastasis for Additional Induction Chemotherapy. AB - Purpose: Metastasis is one of the most important causes of treatment failure in nasopharyngeal carcinoma (NPC). In T4 or N2-3 patients at high-risk of metastasis, concurrent chemoradiotherapy (CCRT) is inadequate and additional induction chemotherapy (IC) is controversial. There is a critical need to develop a better patient stratification to efficiently identify patients at high-risk of metastasis for additional IC. Recently, Sequestosome 1 (SQSTM1)/p62, an autophagy adaptor protein, was identified as one of the metastasis-related proteins in NPC. However, the mechanism by which SQSTM1 is involved in NPC metastasis was not investigated.Experimental Design: The effect of SQSTM1 on cell migration and invasion was examined in vitro and in vivo SQSTM1 expression was analyzed in clinical NPC samples using IHC. Luciferase reporter analyses were conducted to identify the effects of SQSTM1 on NF-kappaB transcriptional activity. A prediction bio-model was constructed by Cox analysis. Retrospective and prospective randomized clinical data were adopted to build and test the model, respectively.Results: SQSTM1 mediated epithelial to mesenchymal transition (EMT) through the NF-kappaB pathway to promote NPC metastasis. Inhibiting SQSTM1 enhanced sensitivity to cisplatin in NPC cells. In NPC patients, high SQSTM1 expression was associated with increased risk of distant metastasis. Furthermore, we propose a prognostic bio-model based on SQSTM1 and N-stage to predict NPC metastasis. Most importantly, our prospective randomized study suggested that IC is beneficial for NPC patients with high metastasis risk.Conclusions: The prognostic bio-model identifies NPC patients at high-risk of metastasis for additional IC. Clin Cancer Res; 24(3); 648-58. (c)2017 AACR. PMID- 29030354 TI - Phase Ib/II Trial of NC-6004 (Nanoparticle Cisplatin) Plus Gemcitabine in Patients with Advanced Solid Tumors. AB - Purpose: NC-6004, a novel cisplatin nanoparticle developed using micellar technology exhibits sustained release of cisplatin and selective distribution to tumors. Preclinical data demonstrated a favorable tolerability profile and preserved or improved antitumor activity compared with cisplatin across animal models. We evaluated the safety and tolerability of NC-6004 and gemcitabine using a Bayesian continual reassessment model (N-CRM) to determine the optimal dose.Experimental Design: Patients with advanced solid tumors received NC-6004 at 60 to 180 mg/m2 on day 1 and gemcitabine at 1,250 mg/m2 on days 1 and 8 every 3 weeks. Dose escalation of NC-6004 began with a single patient run-in until a dose limiting toxicity occurred at 180 mg/m2 Cohorts of four patients were enrolled at doses predicted by the N-CRM. The maximum tolerated dose (MTD) was defined as having the greatest probability of target toxicity <25%. Quality of life was assessed using EORTC-QLQ-C30.Results: Among 22 patients, the most common grade III/IV hematologic adverse events were leukopenia (68%) and thrombocytopenia (59%). Of 20 pretreated patients evaluable for response, half were previously exposed to a platinum agent. The MTD was 135 mg/m2 Nine patients were treated at the MTD with median treatment duration of 15 weeks (range, 3-50). Tumor shrinkage occurred in 11 (55%), partial responses in 3 (15%), and stable disease in 14 (70%). Most patients reported stable or improved EORTC QLQ-C30 scores.Conclusions: Greater cisplatin equivalent doses were achieved with no clinically significant neuro-, oto-, or nephrotoxicity. These data demonstrate tolerability and promising activity of NC-6004 in combination with gemcitabine. Clin Cancer Res; 24(1); 43-51. (c)2017 AACR. PMID- 29030357 TI - CQC is urged to speed up publication of inspection reports. PMID- 29030356 TI - Cell-Cycle and DNA-Damage Response Pathway Is Involved in Leptomeningeal Metastasis of Non-Small Cell Lung Cancer. AB - Purpose: Leptomeningeal metastasis (LM) is a detrimental complication of non small cell lung cancer (NSCLC) and associated with poor prognosis. However, the underlying mechanisms of the metastasis process are still poorly understood.Experimental Design: We performed next-generation panel sequencing of primary tumor tissue, cerebrospinal fluid (CSF), and matched normal controls from epidermal growth factor receptor (EGFR) mutation-positive NSCLC patients with LM.Results: The status of EGFR-activating mutations was highly concordant between primary tumor and CSF. PIK3CA aberrations were high in these patients, implicating an association with LM risk. Intriguingly, low overlapping of somatic protein-changing variants was observed between paired CSF and primary lesions, exhibiting tumor heterogeneity and genetic divergence. Moreover, genes with CSF recurrent genomic alterations were predominantly involved in cell-cycle regulation and DNA-damage response (DDR), suggesting a role of the pathway in LM development.Conclusions: Our study has shed light on the genomic variations of NSCLC-LM, demonstrated genetic heterogeneity and divergence, uncovered involvement of cell-cycle and DDR pathway, and paved the way for potential therapeutic approaches to this unmet medical need. Clin Cancer Res; 24(1); 209 16. (c)2017 AACR. PMID- 29030358 TI - Hunger can be the driving force behind "relapse" of type 2 diabetes. PMID- 29030359 TI - CC-chemokine ligand 18 is a useful biomarker associated with disease activity in IgG4-related disease. PMID- 29030360 TI - Metabolic and cardiovascular benefits of hydroxychloroquine: exploration in a wider population at high CV risk. PMID- 29030362 TI - NHS staff who refuse flu vaccine this winter will have to give reasons. PMID- 29030361 TI - Lack of placental transfer of certolizumab pegol during pregnancy: results from CRIB, a prospective, postmarketing, pharmacokinetic study. AB - OBJECTIVES: There is a need for effective and safe treatment during pregnancy in women with chronic inflammatory diseases. This study evaluated placental transfer of certolizumab pegol (CZP), an Fc-free anti-tumour necrosis factor drug, from CZP-treated pregnant women to their infants. METHODS: CRIB was a pharmacokinetic (PK) study of women >=30 weeks pregnant receiving commercial CZP for a locally approved indication (last dose <=35 days prior to delivery). Blood samples were collected from mothers, umbilical cords and infants at delivery, and infants again at weeks 4 and 8 post-delivery. CZP plasma concentrations were measured with a highly sensitive and CZP-specific electrochemiluminescence immunoassay (lower limit of quantification 0.032 MUg/mL). RESULTS: Sixteen women entered and completed the study. Maternal CZP plasma levels at delivery were within the expected therapeutic range (median [range] 24.4 [5.0-49.4] MUg/mL). Of the 16 infants, 2 were excluded from the per-protocol set: 1 due to missing data at birth and 1 due to implausible PK data. Of the remaining 14 infants, 13 had no quantifiable CZP levels at birth (<0.032 MUg/mL), and 1 had a minimal CZP level of 0.042 MUg/mL (infant/mother plasma ratio 0.0009); no infants had quantifiable CZP levels at weeks 4 and 8. Of 16 umbilical cord samples, 1 was excluded due to missing data; 3/15 had quantifiable CZP levels (maximum 0.048 MUg/mL). CONCLUSIONS: There was no to minimal placental transfer of CZP from mothers to infants, suggesting lack of in utero foetal exposure during the third trimester. These results support continuation of CZP treatment during pregnancy, when considered necessary. TRIAL REGISTRATION NUMBER: NCT02019602; Results. PMID- 29030363 TI - Isolated left ventricular non-compaction (LVNC) and recurrent strokes: to anticoagulate or not to anticoagulate, that is the question. AB - Isolated left ventricular non-compaction (LVNC) is an uncommon primary cardiomyopathy associated with significant risk of thromboembolic stroke. We report a case of a 69-year-old man with a medical history of ischaemic stroke who presented with a stroke for the second time, and during stroke workup transthoracic echo was suggestive of increased apical trabeculation. He underwent cardiac MRI study to evaluate the left ventricular structure, which revealed LVNC cardiomyopathy, which we believe is the main culprit of his recurrent strokes. Given the high risk of stroke recurrence, antiplatelets followed by anticoagulation for secondary prevention were initiated. This case demonstrates the association between LVNC and recurrent stroke, with a literature review trying to address the dilemma facing the clinician to decide on anticoagulation in such patients. PMID- 29030364 TI - So near, yet so far: access to safe abortion services remains elusive for poor women in India. AB - In this case study, we describe our experiences with a woman employed as a housemaid who sought unsafe abortion services from a private doctor. This was her sixth pregnancy, after previously giving birth to one son and two daughters and undergoing two induced abortions. Her husband remained opposed to the use of contraception. Initially, she had sought medical termination of pregnancy through a government hospital but was denied because of procedural delays, specifically the non-availability of an ultrasonography report consequent to a lack of proof of identity (ie, the AADHAAR card, a unique identification card for recording biometric and demographic data in India). She finally sought the services of an unqualified private physician and received oral abortifacient agents. Consequently, she was required to seek treatment for bleeding per vaginum from the dispensary staff at a government hospital. We note that many such incidents occur in our daily practice but remain unnoticed and undocumented. Although this patient was eligible for sterilisation (ie, tubectomy), her husband was uncooperative. This case illustrates the lack of decision-making power experienced by Indian women who have a low societal status. PMID- 29030365 TI - Transient global amnesia following a whole-body cryotherapy session. AB - Whole-body cryotherapy (WBC), which consists of a short exposure to very cold and dry air in special 'cryo-chambers', is believed to reduce inflammation and musculoskeletal pain as well as improve athletes' recovery. This is the case of a 63-year-old male, who presented with transient global amnesia (TGA) after undertaking a WBC session. TGA is a clinical syndrome characterised by a sudden onset of anterograde amnesia, sometimes coupled with a retrograde component, lasting up to 24 hours without other neurological deficits. Even though the patient completely recovered, as expected, in 24 hours, this case highlights that WBC is potentially not as risk free as thought to be initially. To conclude, before WBC can be medically recommended, well-conducted studies investigating the possible adverse events are required. PMID- 29030366 TI - Role of transoesophageal echocardiography in renal cell carcinoma: a brief review. AB - Transoesophageal echocardiography (TOE) is regularly used in cardiac and also increasingly in non-cardiac surgeries. It has a leading role in the perioperative management of renal cell carcinoma with tumour extension into inferior vena cava. We report two cases in which TOE was of immense help for patient management. This report highlights the two cases where intraoperative TOE was of immense help to establish diagnosis, to modify surgical plan, to guide the surgeon during clamp placement, to monitor cardiac function, to rule out tumour embolism and to confirm the complete removal of tumour thrombus. PMID- 29030367 TI - Patients with common variable immunodeficiency paradoxically have increased rates of autoimmune disorders. AB - Common variable immunodeficiency (CVID), characterised by disordered B cell function, is one of the most common primary immunodeficiency disorders. Patients with CVID are at lifelong risk of recurrent infections, particularly of the respiratory and gastrointestinal tracts. Paradoxically, given their immunocompromised state, patients with CVID are also at significantly increased risk of autoimmune disorders, which are seen in almost 25% of cases. The authors report a 24-year-old female patient with CVID, manifested as severe hypogammaglobulinaemia with recurrent sinopulmonary infections and enterocolitis, who presented with transaminitis, chronic diarrhoea and haematemesis. No infectious aetiologies were identified. She was diagnosed with coeliac disease after a small bowel biopsy and positive response to gluten-free diet. Haematemesis was attributed to portal hypertension due to liver cirrhosis, which was confirmed via liver biopsy. Coeliac disease can be a cause of diarrhoea in patients with immunodeficiency disorders and is often underdiagnosed. It can also be the underlying source of liver disease and is an often under-recognised cause of cirrhosis. The case presented emphasises the paradoxical and challenging relationship that patients with CVID face between immunodeficiency and autoimmune disorders, and also highlights that coeliac disease is an under-recognised cause of liver disease. PMID- 29030368 TI - Iron deficiency anaemia in a coeliac: a cause for concern? AB - A 70-year-old woman with a 15-year history of coeliac disease was admitted for treatment and investigation of symptomatic anaemia. Of note, she was recently commenced on aspirin therapy for retinal artery occlusion. This followed a normal gastro-duodenoscopy, colonoscopy and CT abdomen as workup for iron deficiency anaemia. On this occasion, the patient was further investigated with small bowel capsule endoscopy. This revealed an ulcerated lesion in her proximal jejunum suspicious for malignancy, namely lymphoma. A biopsy of the lesion confirmed adenomatous changes and high-grade dysplasia without malignant changes. Given the endoscopic appearances of the lesion, she was further evaluated with a small bowel MRI. This revealed a 3 cm lesion with associated lymphadenopathy but no distant metastases. She proceeded to resection of her small bowel which confirmed an invasive adenocarcinoma of her proximal jejunum. She is currently undergoing adjuvant chemotherapy on an outpatient basis. PMID- 29030369 TI - Post laser-assisted in situ keratomileusis keratomycotic malignant glaucoma. AB - We report a case of a 24-year-old male patient with post-laser assisted in situ keratomileusis (LASIK) culture-proven mycotic keratitis who developed pupillary block glaucoma on day 19 of medical management. The case was initially managed with multiple Nd-Yag peripheral iridotomy along with systemic and topical antiglaucoma medications. However, an emergency therapeutic penetrating keratoplasty (TPK) with lens extraction was done in view of persistently raised intraocular pressure (IOP) and seclusio pupillae. On postoperative day 1, IOP was 10 mm Hg with graft clarity 2 plus and deep anterior chamber with no evidence of residual infection or recurrence. Pupillary block glaucoma can occur in cases of post-LASIK mycotic keratitis, which may necessitate emergency TPK. PMID- 29030370 TI - "Golden hello" of L20 000 to be offered to 200 GPs a year, says health secretary. PMID- 29030373 TI - Letter by Heinrich-Nols and Kreuzer Regarding Article, "Increased Thromboembolic Events With Dabigatran Compared With Vitamin K Antagonism in Left Ventricular Assist Device Patients: A Randomized Controlled Pilot Trial". PMID- 29030371 TI - Patient and Spousal Health and Outcomes in Heart Failure. AB - BACKGROUND: A diagnosis of heart failure (HF) often requires a comprehensive lifestyle change to maintain disease stability. When patients with HF are married, the spouse frequently assumes the caregiving role. Our objectives were to describe the health of spouses of married patients with HF, and examine whether the health of a spouse impacts patient outcomes. METHODS AND RESULTS: We identified 905 patients that were married at the time of incident HF diagnosis in Olmsted County, MN, from 2000 to 2012. Using Rochester Epidemiology Project resources, the patient and their spouse's comprehensive longitudinal health histories were linked. Spousal health at patient HF diagnosis was assessed by comorbidity burden, self-reported difficulty with activities of daily living and prior hospitalizations. The associations of spousal health with patient outcomes and patient death with spousal outcomes were examined using Cox and Andersen-Gill models. Spouses of patients with HF were elderly (mean age, 71 years), often had comorbid conditions, and 16% had difficulty with >=1 activities of daily living. After adjustment for patient age, sex, and comorbidity, there were no independent associations of spousal health and patient risk of death or hospitalization after HF diagnosis. However, the risk of hospitalization (adjusted hazard ratio, 1.34; 95% confidence interval, 1.11-1.60; P=0.002) and death (hazard ratio, 2.10; 95% confidence interval, 1.60-2.75; P<0.001) increased in the surviving spouse after patient death. CONCLUSIONS: We found no evidence that the health of a spouse impacts patient outcomes after HF diagnosis. However, after a patient with HF dies, their surviving spouse's risk of hospitalization and death increases. PMID- 29030374 TI - Response by Andreas et al to Letter Regarding Article, "Increased Thromboembolic Events With Dabigatran Compared With Vitamin K Antagonism in Left Ventricular Assist Device Patients: A Randomized Controlled Pilot Trial". PMID- 29030375 TI - Primary care improvement in Wales "over reliant" on key individuals. PMID- 29030372 TI - Dose-Dependent Effects of the Myosin Activator Omecamtiv Mecarbil on Cross-Bridge Behavior and Force Generation in Failing Human Myocardium. AB - BACKGROUND: Omecamtiv mecarbil (OM) enhances systolic function in vivo by directly binding the myosin cross-bridges (XBs) in the sarcomere. However, the mechanistic details governing OM-induced modulation of XB behavior in failing human myocardium are unclear. METHODS AND RESULTS: The effects of OM on steady state and dynamic XB behavior were measured in chemically skinned myocardial preparations isolated from human donor and heart failure (HF) left ventricle. HF myocardium exhibited impaired contractile function as evidenced by reduced maximal force, magnitude of XB recruitment (Pdf), and a slowed rate of XB detachment (krel) at submaximal Ca2+ activations. Ca2+ sensitivity of force generation (pCa50) was higher in HF myocardium when compared with donor myocardium, both prior to and after OM incubations. OM incubation (0.5 and 1.0 MUmol/L) enhanced force generation at submaximal Ca2+ activations in a dose dependent manner. Notably, OM induced a slowing in krel with 1.0 MUmol/L OM but not with 0.5 MUmol/L OM in HF myocardium. Additionally, OM exerted other differential effects on XB behavior in HF myocardium as evidenced by a greater enhancement in Pdf and slowing in the time course of cooperative XB recruitment (Trec), which collectively prolonged achievement of peak force development (Tpk), compared with donor myocardium. CONCLUSIONS: Our findings demonstrate that OM augments force generation but also prolongs the time course of XB transitions to force-bearing states in remodeled HF myocardium, which may extend the systolic ejection time in vivo. Optimal OM dosing is critical for eliciting enhanced systolic function without excessive prolongation of systolic ejection time, which may compromise diastolic filling. PMID- 29030376 TI - Disfiguring facial pyoderma vegetans with an excellent outcome. AB - We describe a case of disfiguring facial pyoderma vegetans in order to highlight the challenges in managing this rare skin condition and review the literature.A 54-year-old woman presented to dermatology clinic with a 3-month history of a left-sided facial lesion, which had been treated as an infected sebaceous cyst. The lesion had dramatically increased in size in the weeks prior to presentation. There was a history of Crohn's disease and ileal adenocarcinoma, both of which were in remission. A clinical diagnosis of pyoderma vegetans was made and the patient responded well to immunosuppressive therapy with oral ciclosporin. Carbon dioxide (CO2) laser resurfacing to residual scarring contributed to an excellent cosmetic result. PMID- 29030377 TI - Spontaneous closure of ventricular septal perforation following percutaneous coronary intervention for acute myocardial infarction. AB - We report on an 84-year-old woman with anteroseptal acute myocardial infarction. Emergency coronary angiography revealed the occlusion of proximal left anterior descending artery without collateral circulation, and percutaneous coronary intervention was performed. Two drug eluting stents were implanted, and the procedure was concluded with thrombolysis in myocardial infarction grade 3 without complications. Postoperatively, no murmur was audible on auscultation and no shunt flow was observed on transthoracic echocardiography (TTE), and normal blood pressure was maintained. On day 2, however, the patient's vital signs deteriorated to a state of shock and systolic murmur appeared at the apical region. TTE showed a left-to-right shunt in the apical septal region, and ventricular septal perforation was diagnosed. Although emergency surgery was considered, the patient's vital signs improved the following day. The disappearance of the cardiac murmur and the shunt was confirmed. The clinical course was uneventful thereafter, and the patient was discharged. PMID- 29030378 TI - Worsening Guillain-Barre syndrome: harbinger of IRIS in HIV? AB - We report an HIV patient aged 38 years with acute inflammatory demyelinating polyradiculoneuropathy subtype of Guillain-Barre syndrome (GBS) as the only manifestation of seroconversion and worsening of GBS being the harbinger of immune reconstitution inflammatory syndrome (IRIS). To date, only 5 cases of GBS during IRIS are reported. They manifested either during the third week or later after starting highly active antiretroviral therapy (HAART). Our patient witnessed worsening weakness by fifth day after starting HAART, even before the occurrence of Pneumocystis jirovecii pneumonia, cautioning one of the impending serious complications of IRIS and helped us initiate steroids at an early date. PMID- 29030379 TI - Right Ventricular Pacing Increases Risk of Appropriate Implantable Cardioverter Defibrillator Shocks Asymmetrically: An Analysis of the ALTITUDE Database. AB - BACKGROUND: Right ventricular pacing (RVP) increases risk of atrial fibrillation in patients with implantable cardioverter-defibrillators (ICDs), but ventricular proarrhythmia is less clear. We analyzed a large remote monitoring database to assess this question. METHODS AND RESULTS: Patients with single- or dual-chamber ICDs, engaged in remote monitoring for at least 6 months and with unchanged tachycardia programming, were included. %RVP was derived for each weekly transmission. ICD electrograms preceding the first shock were adjudicated. Among 425 625 transmissions received from 8435 patients, 389 appropriate shocks occurred over a mean follow-up of 15.0+/-8.8 months. In a time-dependent Cox proportional hazards model, transmissions with 80% to 98% RVP were associated with a hazard ratio of 1.56 for an appropriate shock in the subsequent week compared with <1% RVP (95% CI, 1.01-2.41; P=0.04). By contrast, >=98% RVP trended toward a lower risk of an appropriate shock (hazard ratio, 0.61; 95% CI, 0.33 1.12; P=0.108). Lifetime cumulative %RVP was closely correlated with weekly %RVP (R2=0.907) and was similarly associated with increased risk of appropriate shocks at 80% to 98% RVP (hazard ratio, 1.57; 95% CI, 1.01-2.44; P=0.046) but not at >=98% RVP (hazard ratio, 0.49; 95% CI, 0.24-1.01; P=0.052). These results were driven by dual-chamber devices, but unaffected by PVC counts or programming. Male sex and age were also associated with appropriate ICD shocks. CONCLUSIONS: Increasing frequency of RVP is associated with a progressively increased risk of appropriate ICD shocks until >=98% RVP. RVP may have ventricular proarrhythmia because of competition of paced and intrinsic rhythm in ICD patients. PMID- 29030381 TI - Risk Stratification for Sudden Cardiac Death in Individuals Without Structural Disease: Implications From Studies of Rare Genetic Arrhythmic Disorders. PMID- 29030382 TI - Right Ventricular Pacing: Can More of a Bad Thing Be Good? PMID- 29030380 TI - Association Between QT-Interval Components and Sudden Cardiac Death: The ARIC Study (Atherosclerosis Risk in Communities). AB - BACKGROUND: Several reports have demonstrated that prolongation of the QT interval is associated with sudden cardiac death (SCD). However, it is unknown whether any of the components within the QT interval are responsible for its association with SCD. METHODS AND RESULTS: We examined the association of the individual QT-interval components (R-wave onset to R-peak, R-peak to R-wave end, ST-segment, T-wave onset to T-peak, and T-peak to T-wave end) with SCD in 12 241 participants (54+/-5.7 years; 26% black; 55% women) from the ARIC study (Atherosclerosis Risk in Communities). The QT interval and its components were measured at baseline (1987-1989) from 12-lead ECGs. SCD cases were adjudicated by a group of physicians through December 31, 2012. During a median follow-up of 23.6 years, a total of 346 cases of SCD were identified. Although prolongation of the QT interval was associated with a 49% increased risk of SCD (hazard ratio, 1.49; 95% confidence interval, 1.01-2.18), only the T-wave onset to T-peak component (per 1-SD increase: hazard ratio, 1.19; 95% confidence interval, 1.06 1.34) was associated with SCD and not any of the other components in separate models. When all of the QT-interval components were included in the same model, T wave onset to T-peak remained the strongest predictor of SCD (per 1-SD increase: hazard ratio, 1.21; 95% confidence interval, 1.06-1.37). CONCLUSIONS: The risk of SCD with the QT interval is driven by prolongation of the T-wave onset to T-peak component. This suggests that shifting the focus from the overall QT interval to its individual components will refine SCD prediction in the community. PMID- 29030385 TI - Long-term follow-up after bilateral percutaneous epiphysiodesis around the knee to reduce excessive predicted final height. AB - CONTEXT: Percutaneous epiphysiodesis (PE) around the knee to reduce predicted excessive final height. Studies until now included small numbers of patients and short follow-up periods. OBJECTIVE AND DESIGN: This Dutch multicentre, long-term, retrospective, follow-up study aimed to assess adult height (AH), complications, knee function and patient satisfaction after PE. The primary hypothesis was that PE around the knee in constitutionally tall boys and girls is an effective treatment for reducing final height with low complication rates and a high level of patient satisfaction. PARTICIPANTS: 77 treated adolescents and 60 comparisons. INTERVENTION: Percutaneous epiphysiodesis. OUTCOME: AH, complications, knee function, satisfaction. RESULTS: In the PE-treated group, final height was 7.0 cm (+/-6.3 cm) lower than predicted in boys and 5.9 cm (+/-3.7 cm) lower than predicted in girls. Short-term complications in file search were seen in 5.1% (three infections, one temporary nerve injury), one requiring reoperation. Long term complications in file search were seen in 2.6% (axis deformity 1.3%, prominent head of fibula 1.3%). No significant difference in knee function was found between treated cases and comparisons. Satisfaction was high in both the comparison and PE groups; most patients in the PE group recommended PE as the treatment for close relatives with tall stature. CONCLUSION: PE is safe and effective in children with predicted excessive AH. There was no difference in patient satisfaction between the PE and comparison group. Careful and detailed counselling is needed before embarking on treatment. PMID- 29030383 TI - Twelve-Week 24/7 Ambulatory Artificial Pancreas With Weekly Adaptation of Insulin Delivery Settings: Effect on Hemoglobin A1c and Hypoglycemia. AB - OBJECTIVE: Artificial pancreas (AP) systems are best positioned for optimal treatment of type 1 diabetes (T1D) and are currently being tested in outpatient clinical trials. Our consortium developed and tested a novel adaptive AP in an outpatient, single-arm, uncontrolled multicenter clinical trial lasting 12 weeks. RESEARCH DESIGN AND METHODS: Thirty adults with T1D completed a continuous glucose monitor (CGM)-augmented 1-week sensor-augmented pump (SAP) period. After the AP was started, basal insulin delivery settings used by the AP for initialization were adapted weekly, and carbohydrate ratios were adapted every 4 weeks by an algorithm running on a cloud-based server, with automatic data upload from devices. Adaptations were reviewed by expert study clinicians and patients. The primary end point was change in hemoglobin A1c (HbA1c). Outcomes are reported adhering to consensus recommendations on reporting of AP trials. RESULTS: Twenty nine patients completed the trial. HbA1c, 7.0 +/- 0.8% at the start of AP use, improved to 6.7 +/- 0.6% after 12 weeks (-0.3, 95% CI -0.5 to -0.2, P < 0.001). Compared with the SAP run-in, CGM time spent in the hypoglycemic range improved during the day from 5.0 to 1.9% (-3.1, 95% CI -4.1 to -2.1, P < 0.001) and overnight from 4.1 to 1.1% (-3.1, 95% CI -4.2 to -1.9, P < 0.001). Whereas carbohydrate ratios were adapted to a larger extent initially with minimal changes thereafter, basal insulin was adapted throughout. Approximately 10% of adaptation recommendations were manually overridden. There were no protocol related serious adverse events. CONCLUSIONS: Use of our novel adaptive AP yielded significant reductions in HbA1c and hypoglycemia. PMID- 29030387 TI - Discharge communication: do parents hear what we say? PMID- 29030386 TI - Physiological stability in an indigenous sleep device: a randomised controlled trial. AB - OBJECTIVE: To compare overnight oxygen saturation, heart rate and the thermal environment of infants sleeping in an indigenous sleep device (wahakura) or bassinet to identify potential risks and benefits. DESIGN: Randomised controlled trial. SETTING: Family homes in low socio-economic areas in New Zealand. PATIENTS: 200 mainly Maori mothers and their infants. INTERVENTIONS: Participants received a wahakura or bassinet from birth. MAIN OUTCOME MEASURES: Overnight oximetry, heart rate and temperature at 1 month. RESULTS: Intention-to-treat analysis for 83 bassinet and 84 wahakura infants showed no significant differences between groups for the mean time oxygen saturation (SpO2) was less than 94% (0.54 min, 95% CI -1.36 to 2.45) or less than 90% (0.22 min, 95% CI 0.56 to 1.00), the mean number of SpO2 dips per hour >5% (-0.19, 95% CI -3.07 to 2.69) or >10% (-0.41, 95% CI -1.63 to 0.81), mean heart rate (1.99 beats/min, 95% CI -1.02 to 4.99), or time shin temperature >36 degrees C (risk ratio (RR): 0.63, 95% CI 0.13 to 2.99) or <34 degrees C (RR: 0.89, 95% CI 0.61 to 1.30). A per protocol analysis of 45 bassinet and 26 wahakura infants and an as-used analysis of 104 infants in a bassinet and 48 in a wahakura found no significant differences between groups for all outcome measures. CONCLUSIONS: This indigenous sleep device is at least as safe as the currently recommended bassinet, which supports its use as a sleep environment that offers an alternative way of bed sharing. TRIAL REGISTRATION NUMBER: Australian New Zealand Clinical Trials Registry: ACTRN12610000993099. PMID- 29030384 TI - Follow-up brain imaging of 37 children with congenital Zika syndrome: case series study. AB - Objective To compare initial brain computed tomography (CT) scans with follow-up CT scans at one year in children with congenital Zika syndrome, focusing on cerebral calcifications.Design Case series study.Setting Barao de Lucena Hospital, Pernambuco state, Brazil.Participants 37 children with probable or confirmed congenital Zika syndrome during the microcephaly outbreak in 2015 who underwent brain CT shortly after birth and at one year follow-up.Main outcome measure Differences in cerebral calcification patterns between initial and follow up scans.Results 37 children were evaluated. All presented cerebral calcifications on the initial scan, predominantly at cortical-white matter junction. At follow-up the calcifications had diminished in number, size, or density, or a combination in 34 of the children (92%, 95% confidence interval 79% to 97%), were no longer visible in one child, and remained unchanged in two children. No child showed an increase in calcifications. The calcifications at the cortical-white matter junction which were no longer visible at follow-up occurred predominately in the parietal and occipital lobes. These imaging changes were not associated with any clear clinical improvements.Conclusion The detection of cerebral calcifications should not be considered a major criterion for late diagnosis of congenital Zika syndrome, nor should the absence of calcifications be used to exclude the diagnosis. PMID- 29030388 TI - Are prevalence measures better than incidence measures in sports injury research? PMID- 29030389 TI - High precompetition injury rate dominates the injury profile at the Rio 2016 Summer Paralympic Games: a prospective cohort study of 51 198 athlete days. AB - OBJECTIVES: To describe the incidence of injury in the precompetition and competition periods of the Rio 2016 Summer Paralympic Games. METHODS: A total of 3657 athletes from 78 countries, representing 83.4% of all athletes at the Games, were monitored on the web-based injury and illness surveillance system over 51 198 athlete days during the Rio 2016 Summer Paralympic Games. Injury data were obtained daily from teams with their own medical support. RESULTS: A total of 510 injuries were reported during the 14-day Games period, with an injury incidence rate (IR) of 10.0 injuries per 1000 athlete days (12.1% of all athletes surveyed). The highest IRs were reported for football 5-a-side (22.5), judo (15.5) and football 7-a-side (15.3) compared with other sports (p<0.05). Precompetition injuries were significantly higher than in the competition period (risk ratio: 1.40, p<0.05), and acute traumatic injuries were the most common injuries at the Games (IR of 5.5). The shoulder was the most common anatomical area affected by injury (IR of 1.8). CONCLUSION: The data from this study indicate that (1) IRs were lower than those reported for the London 2012 Summer Paralympic Games, (2) the sports of football 5-a-side, judo and football 7-a-side were independent risk factors for injury, (3) precompetition injuries had a higher IR than competition period injuries, (4) injuries to the shoulder were the most common. These results would allow for comparative data to be collected at future editions of the Games and can be used to inform injury prevention programmes. PMID- 29030390 TI - APC/CFZR-1 Controls SAS-5 Levels To Regulate Centrosome Duplication in Caenorhabditis elegans. AB - As the primary microtubule-organizing center, centrosomes play a key role in establishing mitotic bipolar spindles that secure correct transmission of genomic content. For the fidelity of cell division, centrosome number must be strictly controlled by duplicating only once per cell cycle. Proper levels of centrosome proteins are shown to be critical for normal centrosome number and function. Overexpressing core centrosome factors leads to extra centrosomes, while depleting these factors results in centrosome duplication failure. In this regard, protein turnover by the ubiquitin-proteasome system provides a vital mechanism for the regulation of centrosome protein levels. Here, we report that FZR-1, the Caenorhabditis elegans homolog of Cdh1/Hct1/Fzr, a coactivator of the anaphase promoting complex/cyclosome (APC/C), an E3 ubiquitin ligase, functions as a negative regulator of centrosome duplication in the C. elegans embryo. During mitotic cell division in the early embryo, FZR-1 is associated with centrosomes and enriched at nuclei. Loss of fzr-1 function restores centrosome duplication and embryonic viability to the hypomorphic zyg-1(it25) mutant, in part, through elevated levels of SAS-5 at centrosomes. Our data suggest that the APC/CFZR-1 regulates SAS-5 levels by directly recognizing the conserved KEN-box motif, contributing to proper centrosome duplication. Together, our work shows that FZR-1 plays a conserved role in regulating centrosome duplication in C. elegans. PMID- 29030391 TI - The effect of plasma auto-IgGs on CD4+ T cell apoptosis and recovery in HIV infected patients under antiretroviral therapy. AB - Although effective antiretroviral therapy (ART) suppresses HIV viral replication, prevents AIDS-related complications, and prolongs life, a proportion of patients fails to restore the patients' CD4+ T cell number to the level of healthy individuals. Increased mortality and morbidity have been observed in these patients. In the current study, we have investigated the role of auto-IgGs in CD4+ T cell apoptosis and recovery in a cross-sectional study. All HIV+ subjects were on viral-suppressive ART treatment with a different degree of CD4+ T cell reconstitution. Total auto-IgG binding on CD4+ T cell surfaces and its associated apoptosis and CD4+ T cell recovery were analyzed by flow cytometry ex vivo. Total IgGs from plasma were tested for their binding capacities to CD4+ T cell surfaces and their mediation to CD4+ T cell death through NK cell cytotoxicity in vitro. HIV+ subjects had increased surface binding of auto-IgGs on CD4+ T cells compared with healthy controls, and IgG binding was associated with elevated CD4+ T cell apoptosis in HIV+ subjects but not in healthy controls. Plasma IgGs from HIV+ subjects bound to CD4+ T cells and induced cell apoptosis through NK cytotoxicity in vitro. Soluble CD4 (sCD4) preincubation prevented NK cell-mediated CD4+ T cell death. Our results suggest that plasma autoantibodies may play a role in some HIV+ patients with poor CD4+ T cell recovery under viral-suppressive ART. PMID- 29030392 TI - Hydrogen Sulfide Preserves Endothelial Nitric Oxide Synthase Function by Inhibiting Proline-Rich Kinase 2: Implications for Cardiomyocyte Survival and Cardioprotection. AB - Hydrogen sulfide (H2S) exhibits beneficial effects in the cardiovascular system, many of which depend on nitric oxide (NO). Proline-rich tyrosine kinase 2 (PYK2), a redox-sensitive tyrosine kinase, directly phosphorylates and inhibits endothelial NO synthase (eNOS). We investigated the ability of H2S to relieve PYK2-mediated eNOS inhibition and evaluated the importance of the H2S/PYK2/eNOS axis on cardiomyocyte injury in vitro and in vivo. Exposure of H9c2 cardiomyocytes to H2O2 or pharmacologic inhibition of H2S production increased PYK2 (Y402) and eNOS (Y656) phosphorylation. These effects were blocked by treatment with Na2S or by overexpression of cystathionine gamma-lyase (CSE). In addition, PYK2 overexpression reduced eNOS activity in a H2S-reversible manner. The viability of cardiomyocytes exposed to Eta2Omicron2 was reduced and declined further after the inhibition of H2S production. PYK2 downregulation, l-cysteine supplementation, or CSE overexpression alleviated the effects of H2O2 on H9c2 cardiomyocyte survival. Moreover, H2S promoted PYK2 sulfhydration and inhibited its activity. In vivo, H2S administration reduced reactive oxygen species levels, as well as PYK2 (Y402) and eNOS (Y656) phosphorylation. Pharmacologic blockade of PYK2 or inhibition of PYK2 activation by Na2S reduced myocardial infarct size in mice. Coadministration of a PYK2 inhibitor and Na2S did not result in additive effects on infarct size. We conclude that H2S relieves the inhibitory effect of PYK2 on eNOS, allowing the latter to produce greater amounts of NO, thereby affording cardioprotection. Our results unravel the existence of a novel H2S-NO interaction and identify PYK2 as a crucial target for the protective effects of H2S under conditions of oxidative stress. PMID- 29030395 TI - Dignitarian medical ethics. AB - Philosophers and bioethicists are typically sceptical about invocations of dignity in ethical debates. Many believe that dignity is essentially devoid of meaning: either a mere rhetorical gesture used in the absence of good argument or a faddish term for existing values like autonomy and respect. On the other hand, the patient experience of dignity is a substantial area of research in healthcare fields like nursing and palliative care. In this paper, it is argued that philosophers have much to learn from the concrete patient experiences described in healthcare literature. Dignity is conferred on people when they are treated as having equal status, something the sick and frail are often denied in healthcare settings. The importance of equal status as a unique value has been forcefully argued and widely recognised in political philosophy in the last 15 years. This paper brings medical ethics up to date with philosophical discussion about the value of equal status by developing an equal status conception of dignity. PMID- 29030393 TI - Fanconi anemia FANCD2 and FANCI proteins regulate the nuclear dynamics of splicing factors. AB - Proteins disabled in the cancer-prone disorder Fanconi anemia (FA) ensure the maintenance of chromosomal stability during DNA replication. FA proteins regulate replication dynamics, coordinate replication-coupled repair of interstrand DNA cross-links, and mitigate conflicts between replication and transcription. Here we show that FANCI and FANCD2 associate with splicing factor 3B1 (SF3B1), a key spliceosomal protein of the U2 small nuclear ribonucleoprotein (U2 snRNP). FANCI is in close proximity to SF3B1 in the nucleoplasm of interphase and mitotic cells. Furthermore, we find that DNA replication stress induces the release of SF3B1 from nuclear speckles in a manner that depends on FANCI and on the activity of the checkpoint kinase ATR. In chromatin, both FANCD2 and FANCI associate with SF3B1, prevent accumulation of postcatalytic intron lariats, and contribute to the timely eviction of splicing factors. We propose that FANCD2 and FANCI contribute to the organization of functional domains in chromatin, ensuring the coordination of DNA replication and cotranscriptional processes. PMID- 29030396 TI - Faecal microbiota transplantation donor stools need screening for poliovirus. PMID- 29030397 TI - Poor health as a potential risk factor for job loss due to automation: the case of Norway. AB - OBJECTIVE: This study aimed to quantify the extent to which health characteristics of workers are related to the potential risk of experiencing job displacement due to automation. METHODS: Linking the 2015 Norwegian Statistics on Income and Living Conditions survey (n=6393) with predicted probabilities of automation by occupation, we used Kruskal-Wallis tests and multivariate generalised linear models to assess the association between long-standing illnesses and risk of job automation. RESULTS: Individuals with long-standing illnesses face substantially greater risks of losing their job due to automation. Whereas the average risk of job automation is 57% for men and 49% for women with long-standing illnesses, the risk is only 50% for men and 44% for women with limitations (p<0.001). Controlling for age, having a long-standing illness significantly increases the relative risk of facing job automation among men (risk ratio (RR) 1.13, 95% CI 1.09 to 1.19), as well as women (RR 1.11, 95% CI 1.05 to 1.17). While, among men, the association between long-standing illness and risk of job automation remains significant when controlling for education and income, it becomes insignificant among women. CONCLUSIONS: Individuals with poor health are likely to carry the highest burden of technological change in terms of worsening employment prospects because of working in occupations disproportionally more likely to be automated. Although the extent of technology related job displacement will depend on several factors, given the far-reaching negative consequences of job loss on health and well-being, this process represents a significant challenge for public health and social equity. PMID- 29030394 TI - PtdIns3P controls mTORC1 signaling through lysosomal positioning. AB - The mechanistic target of rapamycin complex 1 (mTORC1) is a protein kinase complex that localizes to lysosomes to up-regulate anabolic processes and down regulate autophagy. Although mTORC1 is known to be activated by lysosome positioning and by amino acid-stimulated production of phosphatidylinositol 3 phosphate (PtdIns3P) by the lipid kinase VPS34/PIK3C3, the mechanisms have been elusive. Here we present results that connect these seemingly unrelated pathways for mTORC1 activation. Amino acids stimulate recruitment of the PtdIns3P-binding protein FYCO1 to lysosomes and promote contacts between FYCO1 lysosomes and endoplasmic reticulum that contain the PtdIns3P effector Protrudin. Upon overexpression of Protrudin and FYCO1, mTORC1-positive lysosomes translocate to the cell periphery, thereby facilitating mTORC1 activation. This requires the ability of Protrudin to bind PtdIns3P. Conversely, upon VPS34 inhibition, or depletion of Protrudin or FYCO1, mTORC1-positive lysosomes cluster perinuclearly, accompanied by reduced mTORC1 activity under nutrient-rich conditions. Consequently, the transcription factor EB enters the nucleus, and autophagy is up regulated. We conclude that PtdIns3P-dependent lysosome translocation to the cell periphery promotes mTORC1 activation. PMID- 29030398 TI - On the effect of hyperaldosteronism-inducing mutations in Na/K pumps. AB - Primary aldosteronism, a condition in which too much aldosterone is produced and that leads to hypertension, is often initiated by an aldosterone-producing adenoma within the zona glomerulosa of the adrenal cortex. Somatic mutations of ATP1A1, encoding the Na/K pump alpha1 subunit, have been found in these adenomas. It has been proposed that a passive inward current transported by several of these mutant pumps is a "gain-of-function" activity that produces membrane depolarization and concomitant increases in aldosterone production. Here, we investigate whether the inward current through mutant Na/K pumps is large enough to induce depolarization of the cells that harbor them. We first investigate inward currents induced by these mutations in Xenopus Na/K pumps expressed in Xenopus oocytes and find that these inward currents are similar in amplitude to wild-type outward Na/K pump currents. Subsequently, we perform a detailed functional evaluation of the human Na/K pump mutants L104R, delF100-L104, V332G, and EETA963S expressed in Xenopus oocytes. By combining two-electrode voltage clamp with [3H]ouabain binding, we measure the turnover rate of these inward currents and compare it to the turnover rate for outward current through wild type pumps. We find that the turnover rate of the inward current through two of these mutants (EETA963S and L104R) is too small to induce significant cell depolarization. Electrophysiological characterization of another hyperaldosteronism-inducing mutation, G99R, reveals the absence of inward currents under many different conditions, including in the presence of the regulator FXYD1 as well as with mammalian ionic concentrations and body temperatures. Instead, we observe robust outward currents, but with significantly reduced affinities for intracellular Na+ and extracellular K+ Collectively, our results point to loss-of-function as the common mechanism for the hyperaldosteronism induced by these Na/K pump mutants. PMID- 29030399 TI - Robust lysosomal calcium signaling through channel TRPML1 is impaired by lysosomal lipid accumulation. AB - The transient receptor potential cation channel mucolipin 1 (TRPML1) channel is a conduit for lysosomal calcium efflux, and channel activity may be affected by lysosomal contents. The lysosomes of retinal pigmented epithelial (RPE) cells are particularly susceptible to build-up of lysosomal waste products because they must degrade the outer segments phagocytosed daily from adjacent photoreceptors; incomplete degradation leads to accumulation of lipid waste in lysosomes. This study asks whether stimulation of TRPML1 can release lysosomal calcium in RPE cells and whether such release is affected by lysosomal accumulations. The TRPML agonist ML-SA1 raised cytoplasmic calcium levels in mouse RPE cells, hesRPE cells, and ARPE-19 cells; this increase was rapid, robust, reversible, and reproducible. The increase was not altered by extracellular calcium removal or by thapsigargin but was eliminated by lysosomal rupture with glycyl-l-phenylalanine beta-naphthylamide. Treatment with desipramine to inhibit acid sphingomyelinase or YM201636 to inhibit PIKfyve also reduced the cytoplasmic calcium increase triggered by ML-SA1, whereas RPE cells from TRPML1-/- mice showed no response to ML-SA1. Cotreatment with chloroquine and U18666A induced formation of neutral, autofluorescent lipid in RPE lysosomes and decreased lysosomal Ca2+ release. Lysosomal Ca2+ release was also impaired in RPE cells from the ATP-binding cassette, subfamily A, member 4-/- mouse model of Stargardt's retinal dystrophy. Neither TRPML1 mRNA nor total lysosomal calcium levels were altered in these models, suggesting a more direct effect on the channel. In summary, stimulation of TRPML1 elevates cytoplasmic calcium levels in RPE cells, but this response is reduced by lysosomal accumulation.-Gomez, N. M., Lu, W. Lim, J. C., Kiselyov, K., Campagno, K. E., Grishchuk, Y., Slaugenhaupt, S. A., Pfeffer, B., Fliesler, S. J., Mitchell, C. H. Robust lysosomal calcium signaling through channel TRPML1 is impaired by lysosomal lipid accumulation. PMID- 29030400 TI - MicroRNA Signature of Cigarette Smoking and Evidence for a Putative Causal Role of MicroRNAs in Smoking-Related Inflammation and Target Organ Damage. AB - BACKGROUND: Cigarette smoking increases risk for multiple diseases. MicroRNAs regulate gene expression and may play a role in smoking-induced target organ damage. We sought to describe a microRNA signature of cigarette smoking and relate it to smoking-associated clinical phenotypes, gene expression, and lung inflammatory signaling. METHODS AND RESULTS: Expression profiling of 283 microRNAs was conducted on whole blood-derived RNA from 5023 Framingham Heart Study participants (54.0% women; mean age, 55+/-13 years) using TaqMan assays and high-throughput reverse transcription quantitative polymerase chain reaction. Associations of microRNA expression with smoking status and associations of smoking-related microRNAs with inflammatory biomarkers and pulmonary function were tested with linear mixed effects models. We identified a 6-microRNA signature of smoking. Five of the 6 smoking-related microRNAs were associated with serum levels of C-reactive protein or interleukin-6; miR-1180 was associated with pulmonary function measures at a marginally significant level. Bioinformatic evaluation of smoking-associated genes coexpressed with the microRNA signature of cigarette smoking revealed enrichment for immune-related pathways. Smoking associated microRNAs altered expression of selected inflammatory mediators in cell culture gain-of-function assays. CONCLUSIONS: We characterized a novel microRNA signature of cigarette smoking. The top microRNAs were associated with systemic inflammatory markers and reduced pulmonary function, correlated with expression of genes involved in immune function, and were sufficient to modulate inflammatory signaling. Our results highlight smoking-associated microRNAs and are consistent with the hypothesis that smoking-associated microRNAs serve as mediators of smoking-induced inflammation and target organ damage. These findings call for further mechanistic studies to explore the diagnostic and therapeutic use of smoking-related microRNAs. PMID- 29030401 TI - A Comparison of Whole Genome Sequencing to Multigene Panel Testing in Hypertrophic Cardiomyopathy Patients. AB - BACKGROUND: As DNA sequencing costs decline, genetic testing options have expanded. Whole exome sequencing and whole genome sequencing (WGS) are entering clinical use, posing questions about their incremental value compared with disease-specific multigene panels that have been the cornerstone of genetic testing. METHODS AND RESULTS: Forty-one patients with hypertrophic cardiomyopathy who had undergone targeted hypertrophic cardiomyopathy genetic testing (either multigene panel or familial variant test) were recruited into the MedSeq Project, a clinical trial of WGS. Results from panel genetic testing and WGS were compared. In 20 of 41 participants, panel genetic testing identified variants classified as pathogenic, likely pathogenic, or uncertain significance. WGS identified 19 of these 20 variants, but the variant detection algorithm missed a pathogenic 18 bp duplication in myosin binding protein C (MYBPC3) because of low coverage. In 3 individuals, WGS identified variants in genes implicated in cardiomyopathy but not included in prior panel testing: a pathogenic protein tyrosine phosphatase, non-receptor type 11 (PTPN11) variant and variants of uncertain significance in integrin-linked kinase (ILK) and filamin-C (FLNC). WGS also identified 84 secondary findings (mean=2 per person, range=0-6), which mostly defined carrier status for recessive conditions. CONCLUSIONS: WGS detected nearly all variants identified on panel testing, provided 1 new diagnostic finding, and allowed interrogation of posited disease genes. Several variants of uncertain clinical use and numerous secondary genetic findings were also identified. Whereas panel testing and WGS provided similar diagnostic yield, WGS offers the advantage of reanalysis over time to incorporate advances in knowledge, but requires expertise in genomic interpretation to appropriately incorporate WGS into clinical care. CLINICAL TRIAL REGISTRATION: URL: https://clinicaltrials.gov. Unique identifier: NCT01736566. PMID- 29030402 TI - Transcriptome and Functional Profile of Cardiac Myocytes Is Influenced by Biological Sex. AB - BACKGROUND: Although cardiovascular disease is the primary killer of women in the United States, women and female animals have traditionally been omitted from research studies. In reports that do include both sexes, significant sexual dimorphisms have been demonstrated in development, presentation, and outcome of cardiovascular disease. However, there is little understanding of the mechanisms underlying these observations. A more thorough understanding of sex-specific cardiovascular differences both at baseline and in disease is required to effectively consider and treat all patients with cardiovascular disease. METHODS AND RESULTS: We analyzed contractility in the whole rat heart, adult rat ventricular myocytes (ARVMs), and myofibrils from both sexes of rats and observed functional sex differences at all levels. Hearts and ARVMs from female rats displayed greater fractional shortening than males, and female ARVMs and myofibrils took longer to relax. To define factors underlying these functional differences, we performed an RNA sequencing experiment on ARVMs from male and female rats and identified ~600 genes were expressed in a sexually dimorphic manner. Further analysis revealed sex-specific enrichment of signaling pathways and key regulators. At the protein level, female ARVMs exhibited higher protein kinase A activity, consistent with pathway enrichment identified through RNA sequencing. In addition, activating the protein kinase A pathway diminished the contractile sexual dimorphisms previously observed. CONCLUSIONS: These data support the notion that sex-specific gene expression differences at baseline influence cardiac function, particularly through the protein kinase A pathway, and could potentially be responsible for differences in cardiovascular disease presentation and outcomes. PMID- 29030404 TI - A Smoking-Associated miRNA-mRNA Coexpression Network. PMID- 29030405 TI - Blood Pressure Genome-Wide Association Studies, Missing Heritability, and Omnigenics. PMID- 29030406 TI - Sex Determines Cardiac Myocyte Stretch and Relaxation. PMID- 29030407 TI - Hypertrophic Cardiomyopathy Gene Testing: Go Big? PMID- 29030408 TI - Unusual cause of opaque hemithorax. PMID- 29030410 TI - Shame and the vulnerable self in medical contexts: the compassionate solution. AB - Shame is a powerful experience that plays a vital role in a whole range of aspects of the clinical encounter. Shame experiences can have an impact on our psychological and physiological state and on how we experience ourselves, others and our relationships. The medical encounter is an obvious arena for shame because we are presenting (aspects of) our bodies and minds that can be seen as unattractive and undesirable, diseased, decayed and injured with the various excretions that typically might invite disgust. In contrast, experiences of compassion of acceptance, validation and kindness and can increase approach, openness and preparedness to engage with painful difficult scenarios. While shame is an experience that separates, segregates, marginalises and disengages people, caring and compassion facilitate integration, (re)connection and support. Given the potential opposite impacts of these different types of social experience, this paper will outline their evolutionary origins and compare and contrast them with particular reference to the medical context. PMID- 29030403 TI - New Blood Pressure-Associated Loci Identified in Meta-Analyses of 475 000 Individuals. AB - BACKGROUND: Genome-wide association studies have recently identified >400 loci that harbor DNA sequence variants that influence blood pressure (BP). Our earlier studies identified and validated 56 single nucleotide variants (SNVs) associated with BP from meta-analyses of exome chip genotype data. An additional 100 variants yielded suggestive evidence of association. METHODS AND RESULTS: Here, we augment the sample with 140 886 European individuals from the UK Biobank, in whom 77 of the 100 suggestive SNVs were available for association analysis with systolic BP or diastolic BP or pulse pressure. We performed 2 meta-analyses, one in individuals of European, South Asian, African, and Hispanic descent (pan ancestry, ~475 000), and the other in the subset of individuals of European descent (~423 000). Twenty-one SNVs were genome-wide significant (P<5*10-8) for BP, of which 4 are new BP loci: rs9678851 (missense, SLC4A1AP), rs7437940 (AFAP1), rs13303 (missense, STAB1), and rs1055144 (7p15.2). In addition, we identified a potentially independent novel BP-associated SNV, rs3416322 (missense, SYNPO2L) at a known locus, uncorrelated with the previously reported SNVs. Two SNVs are associated with expression levels of nearby genes, and SNVs at 3 loci are associated with other traits. One SNV with a minor allele frequency <0.01, (rs3025380 at DBH) was genome-wide significant. CONCLUSIONS: We report 4 novel loci associated with BP regulation, and 1 independent variant at an established BP locus. This analysis highlights several candidate genes with variation that alter protein function or gene expression for potential follow-up. PMID- 29030411 TI - Global shortage of neonatal and paediatric antibiotic trials: rapid review. AB - OBJECTIVES: There have been few clinical trials (CTs) on antibiotics that inform neonatal and paediatric drug labelling. The rate of unlicensed and off-label prescribing in paediatrics remains high. It is unclear whether the current neonatal and paediatric antibiotic research pipeline is adequate to inform optimal drug dosing. Using the ClinicalTrials.gov registry, this review aims to establish the current global status of antibiotic CTs in children up to 18 years of age. METHODS: Studies were identified using key word searches of the ClinicalTrials.gov registry and were manually filtered using prespecified inclusion/exclusion criteria. RESULTS: 76 registered open CTs of antibiotics in children were identified globally; 23 (30%) were recruiting newborns (only 8 (11%) included preterm neonates), 52 (68%) infants and toddlers, 58 (76%) children and 54 (71%) adolescents. The majority of registered trials were late phase (10 (15%) phase 3 and 23 (35%) phase 4/pharmacovigilance). Two-thirds were sponsored by non-profit organisations, compared with pharmaceutical companies (50 (66%) vs 26 (34%), respectively). A greater proportion of non-profit funded trials were efficacy-based strategic trials (n=34, 68%), in comparison with industry-led trials, which were most often focused on safety or pharmacokinetic data (n=17, 65%). Only 2 of the 37 antibiotics listed on the May 2016 Pew Charitable Trusts antibiotic development pipeline, currently being studied in adults, appear to be currently recruiting in open paediatric CTs. CONCLUSIONS: This review highlights that very few paediatric antibiotic CTs are being conducted globally, especially in neonates. There is a striking disparity noted between antibiotic drug development programmes in adults and children. PMID- 29030412 TI - Strategies for developing sustainable health research capacity in low and middle income countries: a prospective, qualitative study investigating the barriers and enablers to locally led clinical trial conduct in Ethiopia, Cameroon and Sri Lanka. AB - OBJECTIVES: In 2013, the WHO stated that unless low-income and middle-income countries (LMICs) become producers of research, health goals would be hard to achieve. Among the capacities required to build a local evidence base, ability to conduct clinical trials is important. There is no evidence-based guidance for the best ways to develop locally led trial capacity. This research aims to identify the barriers and enablers to locally led clinical trial conduct in LMICs and determine strategies for their sustainable development. DESIGN: Prospective, multiple case study design consisting of interviews (n=34), focus group discussions (n=13) and process mapping exercises (n=10). SETTING: Case studies took place in Ethiopia (2011), Cameroon (2012) and Sri Lanka (2013). PARTICIPANTS: Local health researchers with previous experiences of clinical trials or stakeholders with an interest in trials were purposively selected through registration searches and snowball sampling (n=100). PRIMARY AND SECONDARY OUTCOME MEASURES: Discussion notes and transcripts were analysed using thematic coding analysis. Key themes and mechanisms were identified. RESULTS: Institutions and individuals were variably successful at conducting trials, but there were strong commonalities in the barriers and enablers across all levels and functions of the research systems. Transferable mechanisms were summarised into the necessary conditions for trial undertaking, which included: awareness of research, motivation, knowledge and technical skills, leadership capabilities, forming collaborations, inclusive trial operations, policy relevance and uptake and macro and institutional strengthening. CONCLUSIONS: Barriers and enablers to locally led trial undertaking exist at all levels and functions of LMIC research systems. Establishing the necessary conditions to facilitate this research will require multiple, coordinated interventions that seek to resolve them in a systemic manner. The strategies presented in the discussion provide an evidence based framework for a self-sustaining capacity development approach. This represents an important contribution to the literature that will be relevant for research funders, users and producers. PMID- 29030409 TI - Clinical relevance of androgen receptor alterations in prostate cancer. AB - Prostate cancer (PC) remains a leading cause of cancer-related deaths among men worldwide, despite continuously improved treatment strategies. Patients with metastatic disease are treated by androgen deprivation therapy (ADT) that with time results in the development of castration-resistant prostate cancer (CRPC) usually established as metastases within bone tissue. The androgen receptor (AR) transcription factor is the main driver of CRPC development and of acquired resistance to drugs given for treatment of CRPC, while a minority of patients have CRPC that is non-AR driven. Molecular mechanisms behind epithelial AR reactivation in CRPC include AR gene amplification and overexpression, AR mutations, expression of constitutively active AR variants, intra-tumoural and adrenal androgen synthesis and promiscuous AR activation by other factors. This review will summarize AR alterations of clinical relevance for patients with CRPC, with focus on constitutively active AR variants, their possible association with AR amplification and structural rearrangements as well as their ability to predict patient resistance to AR targeting drugs. The review will also discuss AR signalling in the tumour microenvironment and its possible relevance for metastatic growth and therapy. PMID- 29030413 TI - Patient-reported outcome measures for patients with meniscal tears: a systematic review of measurement properties and evaluation with the COSMIN checklist. AB - OBJECTIVE: Meniscal tears occur frequently in the population and the most common surgical treatment, arthroscopic partial meniscectomy, is performed in approximately two million cases worldwide each year. The purpose of this systematic review is to summarise and critically appraise the evidence for the use of patient-reported outcome measures (PROMs) in patients with meniscal tears. DESIGN: A systematic review was undertaken. Data on reported measurement properties were extracted and the quality of the studies appraised according to Consensus-based Standards for the Selection of Health Measurement Instruments. DATA SOURCES: A search of MEDLINE, Embase, AMED and PsycINFO, unlimited by language or publication date (last search 20 February 2017). ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Development and validation studies reporting the measurement properties of PROMs in patients with meniscal tears were included. RESULTS: 11 studies and 10 PROMs were included. The overall quality of studies was poor. For measurement of symptoms and functional status, there is only very limited evidence supporting the selection of either the Lysholm Knee Scale, International Knee Documentation Committee Subjective Knee Form or the Dutch version of the Knee injury and Osteoarthritis Outcome Score. For measuring health related quality of life, only limited evidence supports the selection of the Western Ontario Meniscal Evaluation Tool (WOMET). Of all the PROMs evaluated, WOMET has the strongest evidence for content validity. CONCLUSION: For patients with meniscal tears, there is poor quality and incomplete evidence regarding the validity of the currently available PROMs. Further research is required to ensure these PROMs truly reflect the symptoms, function and quality of life of patients with meniscal tears. PROPERO REGISTRATION NUMBER: CRD42017056847. PMID- 29030414 TI - Longitudinal associations between marine omega-3 supplement users and coronary heart disease in a UK population-based cohort. AB - OBJECTIVES: Assess the association between marine omega-3 polyunsaturated fatty acid (n-3 PUFA) intake from supplements, mainly cod liver oil, and coronary heart disease (CHD) mortality. DESIGN: Prospective cohort study, with three exposure measurements over 22 years. SETTING: Norfolk-based European Prospective Investigation into Cancer (EPIC-Norfolk, UK). PARTICIPANTS: 22 035 men and women from the general population, 39-79 years at recruitment. EXPOSURE: Supplement use was assessed in three questionnaires (1993-1998; 2002-2004; 2004-2011). Participants were grouped into non-supplement users (NSU), n-3 PUFA supplement users (SU+n3) and non-n-3 PUFA supplement users (SU-n3). Cox regression adjusted for time-point specific variables: age, smoking, prevalent illnesses, body mass index, alcohol consumption, physical activity and season and baseline assessments of sex, social class, education and dietary intake (7-day diet diary). PRIMARY AND SECONDARY OUTCOME MEASURES: During a median of 19-year follow-up, 1562 CHD deaths were registered for 22 035 included participants. RESULTS: Baseline supplement use was not associated with CHD mortality, but baseline food and supplement intake of n-3 PUFA was inversely associated with CHD mortality after adjustment for fish consumption. Using time-varying covariate analysis, significant associations were observed for SU+n3 (HR: 0.74, 95% CI 0.66 to 0.84), but not for SU-n3 versus NSU. In further analyses, the association for SU+n3 persisted in those who did not take other supplements (HR: 0.83, 95% CI 0.71 to 0.97). Those who became SU+n3 over time or were consistent SU+n3 versus consistent NSU had a lower hazard of CHD mortality; no association with CHD was observed in those who stopped using n-3 PUFA-containing supplements. CONCLUSIONS: Recent use of n-3 PUFA supplements was associated with a lower hazard of CHD mortality in this general population with low fish consumption. Residual confounding cannot be excluded, but the findings observed may be explained by postulated biological mechanisms and the results were specific to SU+n3. PMID- 29030415 TI - Comorbidity and outcomes in traumatic brain injury: protocol for a systematic review on functional status and risk of death. AB - INTRODUCTION: Reports on the association between comorbidity and functional status and risk of death in patients with traumatic brain injury (TBI) have been inconsistent; it is currently unknown which additional clinical entities (comorbidities) have an adverse influence on the evolution of outcomes across the lifespan of men and women with TBI. The current protocol outlines a strategy for a systematic review of the current evidence examining the impact of comorbidity on functional status and early-term and late-term mortality, taking into account known risk factors of these adverse outcomes (ie, demographic (age and sex) and injury-related characteristics). METHODS AND ANALYSIS: A comprehensive search strategy for TBI prognosis, functional (cognitive and physical) status and mortality studies has been developed in collaboration with a medical information specialist of the large rehabilitation teaching hospital. All peer-reviewed English language studies with longitudinal design in adults with TBI of any severity, published from May 1997 to April 2017, found through Medline, Central, Embase, Scopus, PsycINFO and bibliographies of identified articles, will be considered eligible. Study quality will be assessed using published guidelines. ETHICS AND DISSEMINATION: The authors will publish findings from this review in a peer-reviewed scientific journal(s) and present the results at national and international conferences. This work aims to understand how comorbidity may contribute to adverse outcomes in TBI, to inform risk stratification of patients and guide the management of brain injury acutely and at the chronic stages postinjury on a population level. PROSPERO REGISTRATION NUMBER: CRD42017070033. PMID- 29030417 TI - Reply to 'Effects of sodium-glucose cotransporter 2 inhibitors on urinary excretion of intact and total angiotensinogen in patients with type 2 diabetes' by Yoshimoto et al. PMID- 29030418 TI - Short delay to initiate plasma exchange is the strongest predictor of outcome in severe attacks of NMO spectrum disorders. AB - INTRODUCTION: Severe attacks of neuromyelitis optica spectrum disorder (NMO-SD) are improved by plasma exchange (PLEX) given as an adjunctive therapy. Initial studies failed to demonstrate a delay of PLEX treatment influenced clinical outcome; however PLEX was always used late. We examine the clinical consequences of delay in PLEX initiation on severe optic neuritis and spinal cord attacks in NMO-SD. METHODS: All of our patients who suffered attacks of NMO-SD, treated in our centre by PLEX, were retrospectively considered for inclusion. Primary outcome was defined as complete improvement. Secondary poor/good outcomes were respectively defined to be the higher/lower third of Delta-Expanded Disability Status Scale (EDSS) (late minus baseline EDSS). Delays from clinical onset to PLEX initiation were categorised for multivariate analysis. RESULTS: Of the 60 patients included, NMO-SD criteria (2015) were fulfilled in 92%. One hundred and fifteen attacks were included and received PLEX with a median of 7 days (0-54) after clinical onset. The probability to regain complete improvement continuously decreased from 50% for PLEX given at day 0 to 1%-5% after day 20. Through multivariate analysis, the baseline impairment and PLEX delay were associated with the probability to complete improvement (OR 5.3; 95% CI 1.8 to 15.9). Reducing the PLEX delay also influenced the good secondary outcome but not the poor secondary outcome. CONCLUSIONS: These results confirm an improved clinical benefit of early initiation of PLEX during severe attacks of NMO-SD. Perceiving PLEX as a rescue therapy only after steroid failure could be deleterious. PMID- 29030419 TI - Accuracy of clinical diagnosis of dementia with Lewy bodies: a systematic review and meta-analysis. AB - BACKGROUND: The diagnosis of dementia with Lewy bodies (DLB) is based on diagnostic clinical criteria, which were updated over the years. OBJECTIVE: To evaluate, through a systematic review, accuracy of the diagnostic criteria, testing a possible improvement over time. METHODS: We searched on MEDLINE and SCOPUS databases for studies reporting diagnostic parameters regarding the clinical diagnosis of DLB until October 2016. We performed meta-analysis, using a Bayesian approach, on those using pathological examination as gold standard, subclassified based on the different diagnostic criteria used. RESULTS: We selected 22 studies on 1585 patients. Pooled sensitivity, specificity and accuracy were 60.2%, 93.8%, 79.7%, respectively, for criteria antecedents to McKeith 1996. For McKeith 1996-possible, pooled sensitivity, specificity and accuracy were 65.6%, 80.6%, 77.9% in early stages and 72.3%, 64.3%, 66% in late stages, respectively. For McKeith 1996-probable, pooled sensitivity, specificity and accuracy were 19.4%, 95.1%, 77.7% in early stages and 48.6%, 88%, 79.2% in late stages, respectively. McKeith criteria 2005 were evaluated only in late stages: pooled sensitivity, specificity and accuracy were 91.3%, 66.7% and 81.6%, respectively, for possible diagnosis (only one study) and 88.3%, 80.8%, 90.7% for probable diagnosis, decreasing to 85.6%, 77.1% and 81.7% if only considering clinical settings focused on dementia diagnosis and care. CONCLUSIONS AND RELEVANCE: Diagnostic criteria have become more sensitive and less specific over time, without substantial change in the accuracy. Based on current data, about 20% of DLB diagnosis are incorrect. Future studies are needed to evaluate if the recently released revised consensus criteria will improve the diagnostic accuracy of DLB. PMID- 29030416 TI - Genome-Wide Identification of Medicago Peptides Involved in Macronutrient Responses and Nodulation. AB - Growing evidence indicates that small, secreted peptides (SSPs) play critical roles in legume growth and development, yet the annotation of SSP-coding genes is far from complete. Systematic reannotation of the Medicago truncatula genome identified 1,970 homologs of established SSP gene families and an additional 2,455 genes that are potentially novel SSPs, previously unreported in the literature. The expression patterns of known and putative SSP genes based on 144 RNA sequencing data sets covering various stages of macronutrient deficiencies and symbiotic interactions with rhizobia and mycorrhiza were investigated. Focusing on those known or suspected to act via receptor-mediated signaling, 240 nutrient-responsive and 365 nodulation-responsive Signaling-SSPs were identified, greatly expanding the number of SSP gene families potentially involved in acclimation to nutrient deficiencies and nodulation. Synthetic peptide applications were shown to alter root growth and nodulation phenotypes, revealing additional regulators of legume nutrient acquisition. Our results constitute a powerful resource enabling further investigations of specific SSP functions via peptide treatment and reverse genetics. PMID- 29030420 TI - New biomarker for acute ischaemic stroke: plasma glycogen phosphorylase isoenzyme BB. AB - BACKGROUND: Glycogen phosphorylase is the key enzyme that breaks down glycogen to yield glucose-1-phosphate in order to restore depleted energy stores during cerebral ischaemia. We sought to determine whether plasma levels of glycogen phosphorylase BB (GPBB) isoform increased in patients with acute ischaemic stroke (AIS). METHODS: We studied plasma GPBB levels within 12 hours and again at 48+/ 24 hours of symptom onset in 172 patients with imaging-confirmed AIS and 133 stroke-free individuals. We determined the ability of plasma GPBB to discriminate between cases and controls and examined the predictive value of plasma GPBB for 90-day functional outcome, 90-day survival and acute lesion volumes on neuroimaging. RESULTS: The mean (SD) GPBB levels were higher in cases (46.3+/ 38.6 ng/mL at first measurement and 38.6+/-36.5 ng/mL at second measurement) than in controls (4.1+/-7.6 ng/mL, p<0.01 for both). The area under the receiver operating characteristic (ROC) curve for case-control discrimination based on first GPBB measurement was 0.96 (95% CI 0.93 to 0.98). The sensitivity and specificity based on optimal operating point on the ROC curve (7.0 ng/mL) were both 93%. GPBB levels increased in 90% of patients with punctate infarcts (<1.5 mL) and in all patients admitted within the first 4.5 hours of onset. There was no correlation between GPBB concentration and either clinical outcome or acute infarct volume. CONCLUSION: GPBB demonstrates robust response to acute ischaemia and high sensitivity for small infarcts. If confirmed in more diverse populations that also include stroke mimics, GPBB could find utility as a stand-alone marker for acute brain ischaemia. PMID- 29030421 TI - Serotonin transporter gene polymorphisms may be associated with poststroke neurological recovery after escitalopram use. AB - OBJECTIVE: Selective serotonin reuptake inhibitors (SSRIs) putatively improve neurological recovery after stroke. We aimed to investigate whether serotonin transporter (SERT) gene polymorphisms are related to the responsiveness to SSRIs in the poststroke neurological recovery. METHODS: This was a post hoc analysis of the EMOTION study (ClinicalTrials.gov NCT01278498), a randomised, placebo controlled, double-blind trial examining the efficacy of escitalopram on emotional and neurological disturbances after acute stroke. Patients with no/minimal disability initially (modified Rankin Scale (mRS) 0-1) were excluded. Of the participants, 301 underwent genetic studies of the STin2 (a variable number tandem repeat (VNTR) in intron 2) (STin2 12/10 and STin2 12/12 genotypes) and 5-HTTLPR (a variable-length repeat in the promoter region) polymorphisms of SERT. We explored whether neurological function (National Institutes of Health Stroke Scale (NIHSS) score and mRS) at 3 months would differ according to SERT polymorphisms within each treatment arm (escitalopram and placebo). RESULTS: Among the escitalopram users (n=159), neurological function in subjects with STin2 12/10 (n=29) improved significantly more than that in STin2 12/12 carriers (n=130) at 3 months. After adjusting for age, initial NIHSS and depression, STin2 12/10 independently predicted a good clinical outcome (mRS 0-1) (OR 2.99, 95% CI 1.04 to 8.58) at 3 months. However, differences between STin2 polymorphisms were not shown in the placebo group (n=142). 5-HTTLPR polymorphisms were not associated with neurological recovery in any treatment group. CONCLUSION: STin2 VNTR polymorphisms may be associated with poststroke neurological recovery after SSRI therapy. Further studies are needed to identify the role of serotonin in neurological recovery after stroke. PMID- 29030422 TI - Outcome of intracerebral haemorrhage related to non-vitamin K antagonists oral anticoagulants versus vitamin K antagonists: a comprehensive systematic review and meta-analysis. AB - INTRODUCTION: The characteristics and natural history of acute non-vitamin K antagonists oral anticoagulants (NOAC)-associated intracerebral haemorrhage (ICH) are largely unknown. We performed a comprehensive systematic review and meta analysis to compare baseline ICH volume, haematoma expansion and clinical outcomes between NOAC-ICH versus vitamin K antagonists-ICH (VKA-ICH). METHODS: We searched PubMed and conference abstracts for observational studies comparing baseline characteristics and outcomes in patients with NOAC-ICH versus VKA-ICH using an appropriate keyword/MeSH term search strategy. Data were extracted following PRISMA and MOOSE guidelines. The main outcome measures were mortality and unfavourable functional outcome (modified Rankin Score: 4-6) at discharge and at 3 months, as well as ICH volumes and haematoma expansion rates in the two groups. Random-effects models with DerSimonian-Laird weights were used for pooled estimates calculation. RESULTS: Twelve studies including 393 NOAC-ICH and 3482 VKA-ICH were pooled in meta-analysis. There was no difference in mean ICH-volume between the two groups (standard mean difference: -0.24; 95% CI -0.52 to 0.04, p=0.093). The rates of haematoma expansion were comparable in NOAC-ICH versus VKA ICH (OR: 0.76; 95% CI 0.49 to 1.19, p=0.236). We did not find any difference between patients with NOAC-ICH versus VKA-ICH in all-cause mortality at discharge (OR: 0.66; 95% CI 0.42 to 1.05, p=0.077) and unfavourable functional outcome at discharge (OR: 0.77; 95% CI 0.41 to 1.44, p=0.413). The 3-month outcome was also comparable between the two ICH groups. Moderate-to-substantial statistical heterogeneity was noted. CONCLUSION: Our results confirm that ICH volume, haematoma expansion, mortality and functional outcome appear to be similar for NOAC-ICH versus VKA-ICH. Large prospective cohorts and updated meta-analyses are needed to provide more precise estimates. PMID- 29030423 TI - Graphics and statistics for cardiology: designing effective tables for presentation and publication. AB - Research is of little use if its results are not effectively communicated. Data visualised in tables (and graphs) are key components in any scientific report, but their design leaves much to be desired. This article focuses on table design, following two general principles: clear vision and clear understanding. Clear vision is achieved by maximising the signal to noise ratio. In a table, the signal is the data in the form of numbers, and the noise is the support structure necessary to interpret the numbers. Clear understanding is achieved when the story in the data is told effectively, through organisation of the data and use of text. These principles are illustrated by original and improved tables from recent publications. Two special cases are discussed separately: tables produced by the pharmaceutical industry (in clinical study reports and reports to data safety monitoring boards), and study flow diagrams as proposed by the Consolidated Standards of Reporting Trials and Preferred Reporting Items for Systematic Reviews and Meta-Analyses initiatives. PMID- 29030424 TI - Stable coronary syndromes: pathophysiology, diagnostic advances and therapeutic need. AB - The diagnostic management of patients with angina pectoris typically centres on the detection of obstructive epicardial CAD, which aligns with evidence-based treatment options that include medical therapy and myocardial revascularisation. This clinical paradigm fails to account for the considerable proportion (approximately one-third) of patients with angina in whom obstructive CAD is excluded. This common scenario presents a diagnostic conundrum whereby angina occurs but there is no obstructive CAD (ischaemia and no obstructive coronary artery disease-INOCA). We review new insights into the pathophysiology of angina whereby myocardial ischaemia results from a deficient supply of oxygenated blood to the myocardium, due to various combinations of focal or diffuse epicardial disease (macrovascular), microvascular dysfunction or both. Macrovascular disease may be due to the presence of obstructive CAD secondary to atherosclerosis, or may be dynamic due to a functional disorder (eg, coronary artery spasm, myocardial bridging). Pathophysiology of coronary microvascular disease may involve anatomical abnormalities resulting in increased coronary resistance, or functional abnormalities resulting in abnormal vasomotor tone. We consider novel clinical diagnostic techniques enabling new insights into the causes of angina and appraise the need for improved therapeutic options for patients with INOCA. We conclude that the taxonomy of stable CAD could improve to better reflect the heterogeneous pathophysiology of the coronary circulation. We propose the term 'stable coronary syndromes' (SCS), which aligns with the well-established terminology for 'acute coronary syndromes'. SCS subtends a clinically relevant classification that more fully encompasses the different diseases of the epicardial and microvascular coronary circulation. PMID- 29030425 TI - Quantitative time-course metabolomics in human red blood cells reveal the temperature dependence of human metabolic networks. AB - The temperature dependence of biological processes has been studied at the levels of individual biochemical reactions and organism physiology (e.g. basal metabolic rates) but has not been examined at the metabolic network level. Here, we used a systems biology approach to characterize the temperature dependence of the human red blood cell (RBC) metabolic network between 4 and 37 degrees C through absolutely quantified exo- and endometabolomics data. We used an Arrhenius-type model (Q10) to describe how the rate of a biochemical process changes with every 10 degrees C change in temperature. Multivariate statistical analysis of the metabolomics data revealed that the same metabolic network-level trends previously reported for RBCs at 4 degrees C were conserved but accelerated with increasing temperature. We calculated a median Q10 coefficient of 2.89 +/- 1.03, within the expected range of 2-3 for biological processes, for 48 individual metabolite concentrations. We then integrated these metabolomics measurements into a cell-scale metabolic model to study pathway usage, calculating a median Q10 coefficient of 2.73 +/- 0.75 for 35 reaction fluxes. The relative fluxes through glycolysis and nucleotide metabolism pathways were consistent across the studied temperature range despite the non-uniform distributions of Q10 coefficients of individual metabolites and reaction fluxes. Together, these results indicate that the rate of change of network-level responses to temperature differences in RBC metabolism is consistent between 4 and 37 degrees C. More broadly, we provide a baseline characterization of a biochemical network given no transcriptional or translational regulation that can be used to explore the temperature dependence of metabolism. PMID- 29030426 TI - Molecular insights into the m-AAA protease-mediated dislocation of transmembrane helices in the mitochondrial inner membrane. AB - Protein complexes involved in respiration, ATP synthesis, and protein import reside in the mitochondrial inner membrane; thus, proper regulation of these proteins is essential for cell viability. The m-AAA protease, a conserved hetero hexameric AAA (ATPase associated with diverse cellular activities) protease, composed of the Yta10 and Yta12 proteins, regulates mitochondrial proteostasis by mediating protein maturation and degradation. It also recognizes and mediates the dislocation of membrane-embedded substrates, including foreign transmembrane (TM) segments, but the molecular mechanism involved in these processes remains elusive. This study investigated the role of the TM domains in the m-AAA protease by systematic replacement of one TM domain at a time in yeast. Our data indicated that replacement of the Yta10 TM2 domain abolishes membrane dislocation for only a subset of substrates, whereas replacement of the Yta12 TM2 domain impairs membrane dislocation for all tested substrates, suggesting different roles of the TM domains in each m-AAA protease subunit. Furthermore, m-AAA protease-mediated membrane dislocation was impaired in the presence of a large downstream hydrophilic moiety in a membrane substrate. This finding suggested that the m-AAA protease cannot dislocate large hydrophilic domains across the membrane, indicating that the membrane dislocation probably occurs in a lipid environment. In summary, this study highlights previously underappreciated biological roles of TM domains of the m-AAA proteases in mediating the recognition and dislocation of membrane-embedded substrates. PMID- 29030427 TI - Structural insights into marine carbohydrate degradation by family GH16 kappa carrageenases. AB - Carrageenans are sulfated alpha-1,3-beta-1,4-galactans found in the cell wall of some red algae that are practically valuable for their gelation and biomimetic properties but also serve as a potential carbon source for marine bacteria. Carbohydrate degradation has been studied extensively for terrestrial plant/bacterial systems, but sulfation is not present in these cases, meaning the marine enzymes used to degrade carrageenans must possess unique features to recognize these modifications. To gain insights into these features, we have focused on kappa-carrageenases from two distant bacterial phyla, which belong to glycoside hydrolase family 16 and cleave the beta-1,4 linkage of kappa carrageenan. We have solved the crystal structure of the catalytic module of ZgCgkA from Zobellia galactanivorans at 1.66 A resolution and compared it with the only other structure available, that of PcCgkA from Pseudoalteromonas carrageenovora 9T (ATCC 43555T). We also describe the first substrate complex in the inactivated mutant form of PcCgkA at 1.7 A resolution. The structural and biochemical comparison of these enzymes suggests key determinants that underlie the functional properties of this subfamily. In particular, we identified several arginine residues that interact with the polyanionic substrate, and confirmed the functional relevance of these amino acids using a targeted mutagenesis strategy. These results give new insight into the diversity of the kappa-carrageenase subfamily. The phylogenetic analyses show the presence of several distinct clades of enzymes that relate to differences in modes of action or subtle differences within the same substrate specificity, matching the hybrid character of the kappa carrageenan polymer. PMID- 29030428 TI - A retractable lid in lecithin:cholesterol acyltransferase provides a structural mechanism for activation by apolipoprotein A-I. AB - Lecithin:cholesterol acyltransferase (LCAT) plays a key role in reverse cholesterol transport by transferring an acyl group from phosphatidylcholine to cholesterol, promoting the maturation of high-density lipoproteins (HDL) from discoidal to spherical particles. LCAT is activated through an unknown mechanism by apolipoprotein A-I (apoA-I) and other mimetic peptides that form a belt around HDL. Here, we report the crystal structure of LCAT with an extended lid that blocks access to the active site, consistent with an inactive conformation. Residues Thr-123 and Phe-382 in the catalytic domain form a latch-like interaction with hydrophobic residues in the lid. Because these residues are mutated in genetic disease, lid displacement was hypothesized to be an important feature of apoA-I activation. Functional studies of site-directed mutants revealed that loss of latch interactions or the entire lid enhanced activity against soluble ester substrates, and hydrogen-deuterium exchange (HDX) mass spectrometry revealed that the LCAT lid is extremely dynamic in solution. Upon addition of a covalent inhibitor that mimics one of the reaction intermediates, there is an overall decrease in HDX in the lid and adjacent regions of the protein, consistent with ordering. These data suggest a model wherein the active site of LCAT is shielded from soluble substrates by a dynamic lid until it interacts with HDL to allow transesterification to proceed. PMID- 29030429 TI - Activating mutations in quorum-sensing regulator Rgg2 and its conformational flexibility in the absence of an intermolecular disulfide bond. AB - Rap/Rgg/NprR/PlcR/PrgX (RRNPP) quorum-sensing systems use extracellular peptide pheromones that are detected by cytoplasmic receptors to regulate gene expression in firmicute bacteria. Rgg-type receptors are allosterically regulated through direct pheromone binding to control transcriptional activity; however, the receptor activation mechanism remains poorly understood. Previous work has identified a disulfide bond between Cys-45 residues within the homodimer interface of Rgg2 from Streptococcus dysgalactiae (Rgg2Sd). Here, we compared two Rgg2Sd(C45S) X-ray crystal structures with that of wild-type Rgg2Sd and found that in the absence of the intermolecular disulfide, the Rgg2Sd dimer interface is destabilized and Rgg2Sd can adopt multiple conformations. One conformation closely resembled the "disulfide-locked" Rgg2Sd secondary and tertiary structures, but another displayed more extensive rigid-body shifts as well as dramatic secondary structure changes. In parallel experiments, a genetic screen was used to identify mutations in rgg2 of Streptococcus pyogenes (rgg2Sp ) that conferred pheromone-independent transcriptional activation of an Rgg2-stimulated promoter. Eight mutations yielding constitutive Rgg2 activity, designated Rgg2Sp*, were identified, and five of them clustered in or near an Rgg2 region that underwent conformational changes in one of the Rgg2Sd(C45S) crystal structures. The Rgg2Sp* mutations increased Rgg2Sp sensitivity to pheromone and pheromone variants while displaying decreased sensitivity to the Rgg2 antagonist cyclosporine A. We propose that Rgg2Sp* mutations invoke shifts in free-energy bias to favor the active state of the protein. Finally, we present evidence for an electrostatic interaction between an N-terminal Asp of the pheromone and Arg 153 within the proposed pheromone-binding pocket of Rgg2Sp. PMID- 29030430 TI - Direct binding to integrins and loss of disulfide linkage in interleukin-1beta (IL-1beta) are involved in the agonistic action of IL-1beta. AB - There is a strong link between integrins and interleukin-1beta (IL-1beta), but the specifics of the role of integrins in IL-1beta signaling are unclear. We describe that IL-1beta specifically bound to integrins alphavbeta3 and alpha5beta1. The E128K mutation in the IL1R-binding site enhanced integrin binding. We studied whether direct integrin binding is involved in IL-1beta signaling. We compared sequences of IL-1beta and IL-1 receptor antagonist (IL1RN), which is an IL-1beta homologue but has no agonistic activity. Several surface-exposed Lys residues are present in IL-1beta, but not in IL1RN. A disulfide linkage is present in IL1RN, but is not in IL-1beta because of natural C117F mutation. Substitution of the Lys residues to Glu markedly reduced integrin binding of E128K IL-1beta, suggesting that the Lys residues mediate integrin binding. The Lys mutations reduced, but did not completely abrogate, agonistic action of IL-1beta. We studied whether the disulfide linkage plays a role in agonistic action of IL-1beta. Reintroduction of the disulfide linkage by the F117C mutation did not affect agonistic activity of WT IL-1beta, but effectively reduced the remaining agonistic activity of the Lys mutants. Also, deletion of the disulfide linkage in IL1RN by the C116F mutation did not make it agonistic. We propose that the direct binding to IL-1beta to integrins is primarily important for agonistic IL-1beta signaling, and that the disulfide linkage indirectly affects signaling by blocking conformational changes induced by weak integrin binding to the Lys mutants. The integrin-IL-1beta interaction is a potential target for drug discovery. PMID- 29030431 TI - Distinctive Modulation of Dopamine Release in the Nucleus Accumbens Shell Mediated by Dopamine and Acetylcholine Receptors. AB - Nucleus accumbens (NAc) shell shows unique dopamine (DA) signals in vivo and plays a unique role in DA-dependent behaviors such as reward-motivated learning and the response to drugs of abuse. A disynaptic mechanism for DA release was reported and shown to require synchronized firing of cholinergic interneurons (CINs) and activation of nicotinic acetylcholine (ACh) receptors (nAChRs) in DA neuron (DAN) axons. The properties of this disynaptic mechanism of DA transmission are not well understood in the NAc shell. In this study, in vitro fast-scan cyclic voltammetry was used to examine the modulation of DA transmission evoked by CINs firing in the shell of mice and compared with other striatal regions. We found that DA signals in the shell displayed significant degree of summation in response to train stimulation of CINs, contrary to core and dorsal striatum. The summation was amplified by a D2-like receptor antagonist and experiments with mice with targeted deletion of D2 receptors to DANs or CINs revealed that D2 receptors in CINs mediate a fast inhibition observed within 100 ms of the first pulse, whereas D2 autoreceptors in DAN terminals are engaged in a slower inhibition that peaks at ~500 ms. ACh also contributes to the use dependent inhibition of DA release through muscarinic receptors only in the shell, where higher activity of acetylcholinesterase minimizes nAChR desensitization and promotes summation. These findings show that DA signals are modulated differentially by endogenous DA and ACh in the shell, which may underlie the unique features of shell DA signals in vivoSIGNIFICANCE STATEMENT The present study reports that dopamine (DA) release evoked by activation of cholinergic interneurons displays a high degree of summation in the shell and shows unique modulation by endogenous DA and acetylcholine. Desensitization of nicotinic receptors, which is a prevailing mechanism for use-dependent inhibition in the nucleus accumbens core and dorsal striatum, is also minimal in the shell in part due to elevated acetylcholinesterase activity. This distinctive modulation of DA transmission in the shell may have functional implications in the acquisition of reward-motivated behaviors and reward seeking. PMID- 29030432 TI - Protein Kinase A Deregulation in the Medial Prefrontal Cortex Impairs Working Memory in Murine Oligophrenin-1 Deficiency. AB - Classical and systems genetics have identified wide networks of genes associated with cognitive and neurodevelopmental diseases. In parallel to deciphering the role of each of these genes in neuronal or synaptic function, evaluating the response of neuronal and molecular networks to gene loss of function could reveal some pathophysiological mechanisms potentially accessible to nongenetic therapies. Loss of function of the Rho-GAP oligophrenin-1 is associated with cognitive impairments in both human and mouse. Upregulation of both PKA and ROCK has been reported in Ophn1-/y mice, but it remains unclear whether kinase hyperactivity contributes to the behavioral phenotypes. In this study, we thoroughly characterized a prominent perseveration phenotype displayed by Ophn1 deficient mice using a Y-maze spatial working memory (SWM) test. We report that Ophn1 deficiency in the mouse generated severe cognitive impairments, characterized by both a high occurrence of perseverative behaviors and a lack of deliberation during the SWM test. In vivo and in vitro pharmacological experiments suggest that PKA dysregulation in the mPFC underlies cognitive dysfunction in Ophn1-deficient mice, as assessed using a delayed spatial alternation task results. Functionally, mPFC neuronal networks appeared to be affected in a PKA-dependent manner, whereas hippocampal-PFC projections involved in SWM were not affected in Ophn1-/y mice. Thus, we propose that discrete gene mutations in intellectual disability might generate "secondary" pathophysiological mechanisms, which are prone to become pharmacological targets for curative strategies in adult patients.SIGNIFICANCE STATEMENT Here we report that Ophn1 deficiency generates severe impairments in performance at spatial working memory tests, characterized by a high occurrence of perseverative behaviors and a lack of decision making. This cognitive deficit is consecutive to PKA deregulation in the mPFC that prevents Ophn1 KO mice to exploit a correctly acquired rule. Functionally, mPFC neuronal networks appear to be affected in a PKA-dependent manner, whereas behaviorally important hippocampal projections were preserved by the mutation. Thus, we propose that discrete gene mutations in intellectual disability can generate "secondary" pathophysiological mechanisms prone to become pharmacological targets for curative strategies in adults. PMID- 29030433 TI - Dysregulation of the Mitochondrial Unfolded Protein Response Induces Non Apoptotic Dopaminergic Neurodegeneration in C. elegans Models of Parkinson's Disease. AB - Due to environmental insult or innate genetic deficiency, protein folding environments of the mitochondrial matrix are prone to dysregulation, prompting the activation of a specific organellar stress-response mechanism, the mitochondrial unfolded protein response (UPRMT). In Caenorhabditis elegans, mitochondrial damage leads to nuclear translocation of the ATFS-1 transcription factor to activate the UPRMT After short-term acute stress has been mitigated, the UPRMT is eventually suppressed to restore homeostasis to C. elegans hermaphrodites. In contrast, and reflective of the more chronic nature of progressive neurodegenerative disorders such as Parkinson's disease (PD), here, we report the consequences of prolonged, cell-autonomous activation of the UPRMT in C. elegans dopaminergic neurons. We reveal that neuronal function and integrity decline rapidly with age, culminating in activity-dependent, non apoptotic cell death. In a PD-like context wherein transgenic nematodes express the Lewy body constituent protein alpha-synuclein (alphaS), we not only find that this protein and its PD-associated disease variants have the capacity to induce the UPRMT, but also that coexpression of alphaS and ATFS-1-associated dysregulation of the UPRMT synergistically potentiate dopaminergic neurotoxicity. This genetic interaction is in parallel to mitophagic pathways dependent on the C. elegans PINK1 homolog, which is necessary for cellular resistance to chronic malfunction of the UPRMT Given the increasingly recognized role of mitochondrial quality control in neurodegenerative diseases, these studies illustrate, for the first time, an insidious aspect of mitochondrial signaling in which the UPRMT pathway, under disease-associated, context-specific dysregulation, exacerbates disruption of dopaminergic neurons in vivo, resulting in the neurodegeneration characteristic of PD.SIGNIFICANCE STATEMENT Disruptions or alterations in the activation of pathways that regulate mitochondrial quality control have been linked to neurodegenerative diseases due in part to the central role of mitochondria in metabolism, ROS regulation, and proteostasis. The extent to which these pathways, including the mitochondrial unfolded protein response (UPRMT) and mitophagy, are active may predict severity and progression of these disorders, as well as sensitivity to compounding stressors. Furthermore, therapeutic strategies that aim to induce these pathways may benefit from increased study into cellular responses that arise from long-term or ectopic stimulation, especially in neuronal compartments. By demonstrating the detrimental consequences of prolonged cellular activation of the UPRMT, we provide evidence that this pathway is not a universally beneficial mechanism because dysregulation has neurotoxic consequences. PMID- 29030434 TI - Cadherin-10 Maintains Excitatory/Inhibitory Ratio through Interactions with Synaptic Proteins. AB - Appropriate excitatory/inhibitory (E/I) balance is essential for normal cortical function and is altered in some psychiatric disorders, including autism spectrum disorders (ASDs). Cell-autonomous molecular mechanisms that control the balance of excitatory and inhibitory synapse function remain poorly understood; no proteins that regulate excitatory and inhibitory synapse strength in a coordinated reciprocal manner have been identified. Using super-resolution imaging, electrophysiology, and molecular manipulations, we show that cadherin 10, encoded by CDH10 within the ASD risk locus 5p14.1, maintains both excitatory and inhibitory synaptic scaffold structure in cultured cortical neurons from rats of both sexes. Cadherin-10 localizes to both excitatory and inhibitory synapses in neocortex, where it is organized into nanoscale puncta that influence the size of their associated PSDs. Knockdown of cadherin-10 reduces excitatory but increases inhibitory synapse size and strength, altering the E/I ratio in cortical neurons. Furthermore, cadherin-10 exhibits differential participation in complexes with PSD-95 and gephyrin, which may underlie its role in maintaining the E/I ratio. Our data provide a new mechanism whereby a protein encoded by a common ASD risk factor controls E/I ratios by regulating excitatory and inhibitory synapses in opposing directions.SIGNIFICANCE STATEMENT The correct balance between excitatory/inhibitory (E/I) is crucial for normal brain function and is altered in psychiatric disorders such as autism. However, the molecular mechanisms that underlie this balance remain elusive. To address this, we studied cadherin-10, an adhesion protein that is genetically linked to autism and understudied at the cellular level. Using a combination of advanced microscopy techniques and electrophysiology, we show that cadherin-10 forms nanoscale puncta at excitatory and inhibitory synapses, maintains excitatory and inhibitory synaptic structure, and is essential for maintaining the correct balance between excitation and inhibition in neuronal dendrites. These findings reveal a new mechanism by which E/I balance is controlled in neurons and may bear relevance to synaptic dysfunction in autism. PMID- 29030435 TI - Dissociation of Self-Motion and Object Motion by Linear Population Decoding That Approximates Marginalization. AB - We use visual image motion to judge the movement of objects, as well as our own movements through the environment. Generally, image motion components caused by object motion and self-motion are confounded in the retinal image. Thus, to estimate heading, the brain would ideally marginalize out the effects of object motion (or vice versa), but little is known about how this is accomplished neurally. Behavioral studies suggest that vestibular signals play a role in dissociating object motion and self-motion, and recent computational work suggests that a linear decoder can approximate marginalization by taking advantage of diverse multisensory representations. By measuring responses of MSTd neurons in two male rhesus monkeys and by applying a recently-developed method to approximate marginalization by linear population decoding, we tested the hypothesis that vestibular signals help to dissociate self-motion and object motion. We show that vestibular signals stabilize tuning for heading in neurons with congruent visual and vestibular heading preferences, whereas they stabilize tuning for object motion in neurons with discrepant preferences. Thus, vestibular signals enhance the separability of joint tuning for object motion and self motion. We further show that a linear decoder, designed to approximate marginalization, allows the population to represent either self-motion or object motion with good accuracy. Decoder weights are broadly consistent with a readout strategy, suggested by recent computational work, in which responses are decoded according to the vestibular preferences of multisensory neurons. These results demonstrate, at both single neuron and population levels, that vestibular signals help to dissociate self-motion and object motion.SIGNIFICANCE STATEMENT The brain often needs to estimate one property of a changing environment while ignoring others. This can be difficult because multiple properties of the environment may be confounded in sensory signals. The brain can solve this problem by marginalizing over irrelevant properties to estimate the property-of-interest. We explore this problem in the context of self-motion and object motion, which are inherently confounded in the retinal image. We examine how diversity in a population of multisensory neurons may be exploited to decode self-motion and object motion from the population activity of neurons in macaque area MSTd. PMID- 29030436 TI - A Mutator Phenotype Promoting the Emergence of Spontaneous Oxidative Stress Resistant Mutants in Campylobacter jejuni. AB - Campylobacter jejuni is a leading cause of foodborne illnesses worldwide. As a microaerophilic organism, C. jejuni must be able to defend against oxidative stress encountered both in the host and in the environment. How Campylobacter utilizes a mutation-based mechanism for adaptation to oxidative stress is still unknown. Here we present a previously undescribed phenotypic and genetic mechanism that promotes the emergence of oxidative stress-resistant mutants. Specifically, we showed that a naturally occurring mutator phenotype, resulting from a loss of function mutation in the DNA repair enzyme MutY, increased oxidative stress resistance (OXR) in C. jejuni We further demonstrated that MutY malfunction did not directly contribute to the OXR phenotype but increased the spontaneous mutation rate in the peroxide regulator gene perR, which functions as a repressor for multiple genes involved in oxidative stress resistance. Mutations in PerR resulted in loss of its DNA binding function and derepression of PerR controlled oxidative stress defense genes, thereby conferring an OXR phenotype and facilitating Campylobacter survival under oxidative stress. These findings reveal a new mechanism that promotes the emergence of spontaneous OXR mutants in bacterial organisms.IMPORTANCE Although a mutator phenotype has been shown to promote antibiotic resistance in many bacterial species, little is known about its contribution to the emergence of OXR mutants. This work describes the link between a mutator phenotype and the enhanced emergence of OXR mutants as well as its underlying mechanism involving DNA repair and mutations in PerR. Since DNA repair systems and PerR are well conserved in many bacterial species, especially in Gram positives, the same mechanism may operate in multiple bacterial species. Additionally, we developed a novel method that allows for rapid quantification of spontaneous OXR mutants in a bacterial population. This method represents a technical innovation and may also be applied to other bacterial species. These findings significantly advance our understanding of bacterial mechanisms for survival under oxidative stress. PMID- 29030437 TI - Formation of Staphylococcus aureus Biofilm in the Presence of Sublethal Concentrations of Disinfectants Studied via a Transcriptomic Analysis Using Transcriptome Sequencing (RNA-seq). AB - Staphylococcus aureus is a common biofilm-forming pathogen. Low doses of disinfectants have previously been reported to promote biofilm formation and to increase virulence. The aim of this study was to use transcriptome sequencing (RNA-seq) analysis to investigate global transcriptional changes in S. aureus in response to sublethal concentrations of the commonly used food industry disinfectants ethanol (EtOH) and chloramine T (ChT) and their combination (EtOH_ChT) in order to better understand the effects of these agents on biofilm formation. Treatment with EtOH and EtOH_ChT resulted in more significantly altered expression profiles than treatment with ChT. Our results revealed that EtOH and EtOH_ChT treatments enhanced the expression of genes responsible for regulation of gene expression (sigB), cell surface factors (clfAB), adhesins (sdrDE), and capsular polysaccharides (cap8EFGL), resulting in more intact biofilm. In addition, in this study we were able to identify the pathways involved in the adaptation of S. aureus to the stress of ChT treatment. Further, EtOH suppressed the effect of ChT on gene expression when these agents were used together at sublethal concentrations. These data show that in the presence of sublethal concentrations of tested disinfectants, S. aureus cells trigger protective mechanisms and try to cope with them.IMPORTANCE So far, the effect of disinfectants is not satisfactorily explained. The presented data will allow a better understanding of the mode of disinfectant action with regard to biofilm formation and the ability of bacteria to survive the treatment. Such an understanding could contribute to the effort to eliminate possible sources of bacteria, making disinfectant application as efficient as possible. Biofilm formation plays significant role in the spread and pathogenesis of bacterial species. PMID- 29030438 TI - Role of Wall Shear Stress in Cryptosporidium parvum Oocyst Attachment to Environmental Biofilms. AB - This study investigated Cryptosporidium parvum oocyst deposition onto biofilms as a function of shear stress under laminar or turbulent flow. Annular rotating bioreactors were used to grow stabilized stream biofilms at shear stresses ranging from 0.038 to 0.46 Pa. These steady-state biofilms were then used to assess the impact of hydrodynamic conditions on C. parvum oocyst attachment. C. parvum deposition onto biofilms followed a pseudo-second-order model under both laminar (after a lag phase) and turbulent flows. The total number of oocysts attached to the biofilm at steady state decreased as the hydrodynamic wall shear stress increased. The oocyst deposition rate constant increased with shear stress but decreased at high shear, suggesting that increasing wall shear stress results in faster attachment of Cryptosporidium due to higher mass transport until the shear forces exceed a critical limit that prevents oocyst attachment. These data show that oocyst attachment in the short and long term are impacted differently by shear: higher shear (to a certain limit) may be associated with faster initial oocyst attachment, but lower shear is associated with greater numbers of oocysts attached at equilibrium.IMPORTANCE This research provides experimental evidence to demonstrate that shear stress plays a critical role in protozoan-pathogen transport and deposition in environmental waters. The data presented in this work expand scientific understanding of Cryptosporidium attachment and fate, which will further influence the development of timely and accurate sampling strategies, as well as advanced water treatment technologies, to target protozoan pathogens in surface waters that serve as municipal drinking water sources. PMID- 29030439 TI - Conjugation-mediated horizontal gene transfer of Clostridium perfringens plasmids in the chicken gastrointestinal tract results in the formation of new virulent strains. AB - Clostridium perfringens is a gastrointestinal pathogen capable of causing disease in a variety of hosts. Necrotic enteritis in chickens is caused by C. perfringens strains that produce the pore-forming toxin NetB, the major virulence factor for this disease. Like many other C. perfringens toxins and antibiotic resistance genes, NetB is encoded on a conjugative plasmid. Conjugative transfer of the netB containing plasmid pJIR3535 has been demonstrated in vitro with a netB null mutant. This study has investigated the effect of plasmid transfer on disease pathogenesis, with two genetically distinct transconjugants constructed under in vitro conditions, within the intestinal tract of chickens. This study also demonstrates that plasmid transfer can occur naturally in the host gut environment, without the need for antibiotic selective pressure to be applied. The demonstration of plasmid transfer within the chicken host may have implications for disease progression and pathogenesis of C. perfringens-mediated disease. Such horizontal gene transfer events are likely to be common in the clostridia and may be a key factor in strain evolution, both within animals and in the wider environment.ImportanceClostridium perfringens is a major gastrointestinal pathogen of poultry. C. perfringens strains that express the NetB pore-forming toxin, which is encoded on a conjugative plasmid, cause necrotic enteritis. This study demonstrated that the conjugative transfer of the netB containing plasmid to two different non-pathogenic strains converted them into disease causing strains with similar disease-causing capability as the donor strain. Plasmid transfer of netB and antibiotic resistance was also demonstrated to occur within the gastrointestinal tract of chickens, with approximately 14% of isolates recovered comprising of three distinct, in vivo derived, transconjugant types. The demonstration of in vivo plasmid transfer indicates the potential importance of strain plasticity and the contribution of plasmids to strain virulence. PMID- 29030440 TI - Multiple Roles for Two Efflux Pumps in the Polycyclic Aromatic Hydrocarbon Degrading Pseudomonas putida Strain B6-2 (DSM 28064). AB - Microbial bioremediation is a promising approach for the removal of polycyclic aromatic hydrocarbon (PAH) contaminants. Many degraders of PAHs possess efflux pump genes in their genomes; however, their specific roles in the degradation of PAHs have not been clearly elucidated. In this study, two efflux pumps, TtgABC and SrpABC, were systematically investigated to determine their functions in a PAH-degrading Pseudomonas putida strain B6-2 (DSM 28064). The disruption of genes ttgABC or srpABC resulted in a defect in organic solvent tolerance. TtgABC was found to contribute to antibiotic resistance; SrpABC only contributed to antibiotic resistance under an artificial overproduced condition. Moreover, a mutant strain without srpABC did not maintain its activity in long-term biphenyl (BP) degradation, which correlated with the loss of cell viability. The expression of SrpABC was significantly upregulated in the course of BP degradation. BP, 2-hydroxybiphenyl, 3-hydroxybiphenyl, and 2,3-dihydroxybiphenyl (2,3-DHBP) were revealed to be the inducers of srpABC 2,3-DHBP was verified to be a substrate of pump SrpABC; SrpABC can enhance the tolerance to 2,3-DHBP by pumping it out. The mutant strain B6-2DeltasrpS prolonged BP degradation with the increase of srpABC expression. These results suggest that the pump SrpABC of strain B6-2 plays a positive role in BP biodegradation by pumping out metabolized toxic substances such as 2,3-DHBP. This study provides insights into the versatile physiological functions of the widely distributed efflux pumps in the biodegradation of PAHs.IMPORTANCE Polycyclic aromatic hydrocarbons (PAHs) are notorious for their recalcitrance to degradation in the environment. A high frequency of the occurrence of the efflux pump genes was observed in the genomes of effective PAH degraders; however, their specific roles in the degradation of PAHs are still obscure. The significance of our study is in the identification of the function and mechanism of the efflux pump SrpABC of Pseudomonas putida strain B6-2 (DSM 28064) in the biphenyl degradation process. SrpABC is crucial for releasing the toxicity caused by intermediates that are unavoidably produced in PAH degradation, which enables an understanding of how cells maintain the intracellular balance of materials. The findings from this study provide a new perspective on PAH recalcitrance and shed light on enhancing PAH degradation by genetic engineering. PMID- 29030441 TI - Methanogenic Paraffin Biodegradation: Alkylsuccinate Synthase Gene Quantification and Dicarboxylic Acid Production. AB - Paraffinic n-alkanes (>C17) that are solid at ambient temperature comprise a large fraction of many crude oils. The comparatively low water solubility and reactivity of these long-chain alkanes can lead to their persistence in the environment following fuel spills and pose serious problems for crude oil recovery operations by clogging oil production wells. However, the degradation of waxy paraffins under the anoxic conditions characterizing contaminated groundwater environments and deep subsurface energy reservoirs is poorly understood. Here, we assessed the ability of a methanogenic culture enriched from freshwater fuel-contaminated aquifer sediments to biodegrade the model paraffin n octacosane (C28H58). Compared with that in controls, the consumption of n octacosane was coupled to methane production, demonstrating its biodegradation under these conditions. Smithella was postulated to be an important C28H58 degrader in the culture on the basis of its high relative abundance as determined by 16S rRNA gene sequencing. An identified assA gene (known to encode the alpha subunit of alkylsuccinate synthase) aligned most closely with those from other Smithella organisms. Quantitative PCR (qPCR) and reverse transcription qPCR assays for assA demonstrated significant increases in the abundance and expression of this gene in C28H58-degrading cultures compared with that in controls, suggesting n-octacosane activation by fumarate addition. A metabolite analysis revealed the presence of several long-chain alpha,omega-dicarboxylic acids only in the C28H58-degrading cultures, a novel observation providing clues as to how methanogenic consortia access waxy hydrocarbons. The results of this study broaden our understanding of how waxy paraffins can be biodegraded in anoxic environments with an application toward bioremediation and improved oil recovery.IMPORTANCE Understanding the methanogenic biodegradation of different classes of hydrocarbons has important applications for effective fuel contaminated site remediation and for improved recovery from oil reservoirs. Previous studies have clearly demonstrated that short-chain alkanes (C17) that comprise many fuel mixtures. Using an enrichment culture derived from a freshwater fuel-contaminated site, we demonstrate that the model waxy alkane n-octacosane can be biodegraded under methanogenic conditions by a presumed Smithella phylotype. Compared with that of controls, we show an increased abundance and expression of the assA gene, which is known to be important for anaerobic n-alkane metabolism. Metabolite analyses revealed the presence of a range of alpha,omega-dicarboxylic acids found only in n-octacosane-degrading cultures, a novel finding that lends insight as to how anaerobic communities may access waxes as growth substrates in anoxic environments. PMID- 29030442 TI - An A/U-Rich Enhancer Region Is Required for High-Level Protein Secretion through the HlyA Type I Secretion System. AB - Efficient protein secretion is often a valuable alternative to classic cellular expression to obtain homogenous protein samples. Early on, bacterial type I secretion systems (T1SS) were employed to allow heterologous secretion of fusion proteins. However, this approach was not fully exploited, as many proteins could not be secreted at all or only at low levels. Here, we present an engineered microbial secretion system which allows the effective production of proteins up to a molecular mass of 88 kDa. This system is based on the hemolysin A (HlyA) T1SS of the Gram-negative bacterium Escherichia coli, which exports polypeptides when fused to a hemolysin secretion signal. We identified an A/U-rich enhancer region upstream of hlyA required for effective expression and secretion of selected heterologous proteins irrespective of their prokaryotic, viral, or eukaryotic origin. We further demonstrate that the ribosomal protein S1 binds to the hlyA A/U-rich enhancer region and that this region is involved in the high yields of secretion of functional proteins, like maltose-binding protein or human interferon alpha-2.IMPORTANCE A 5' untranslated region of the mRNA of substrates of type I secretion systems (T1SS) drastically enhanced the secretion efficiency of the endogenously secreted protein. The identification of ribosomal protein S1 as the interaction partner of this 5' untranslated region provides a rationale for the enhancement. This strategy furthermore can be transferred to fusion proteins allowing a broader, and eventually a more general, application of this system for secreting heterologous fusion proteins. PMID- 29030443 TI - Novel Metabolic Pathway for N-Methylpyrrolidone Degradation in Alicycliphilus sp. Strain BQ1. AB - The molecular mechanisms underlying the biodegradation of N-methylpyrrolidone (NMP), a widely used industrial solvent that produces skin irritation in humans and is teratogenic in rats, are unknown. Alicycliphilus sp. strain BQ1 degrades NMP. By studying a transposon-tagged mutant unable to degrade NMP, we identified a six-gene cluster (nmpABCDEF) that is transcribed as a polycistronic mRNA and encodes enzymes involved in NMP biodegradation. nmpA and the transposon-affected gene nmpB encode an N-methylhydantoin amidohydrolase that transforms NMP to gamma N-methylaminobutyric acid; this is metabolized by an amino acid oxidase (NMPC), either by demethylation to produce gamma-aminobutyric acid (GABA) or by deamination to produce succinate semialdehyde (SSA). If GABA is produced, the activity of a GABA aminotransferase (GABA-AT), not encoded in the nmp gene cluster, is needed to generate SSA. SSA is transformed by a succinate semialdehyde dehydrogenase (SSDH) (NMPF) to succinate, which enters the Krebs cycle. The abilities to consume NMP and to utilize it for growth were complemented in the transposon-tagged mutant by use of the nmpABCD genes. Similarly, Escherichia coli MG1655, which has two SSDHs but is unable to grow in NMP, acquired these abilities after functional complementation with these genes. In wild-type (wt) BQ1 cells growing in NMP, GABA was not detected, but SSA was present at double the amount found in cells growing in Luria-Bertani medium (LB), suggesting that GABA is not an intermediate in this pathway. Moreover, E. coli GABA-AT deletion mutants complemented with nmpABCD genes retained the ability to grow in NMP, supporting the possibility that gamma-N-methylaminobutyric acid is deaminated to SSA instead of being demethylated to GABA.IMPORTANCEN Methylpyrrolidone is a cyclic amide reported to be biodegradable. However, the metabolic pathway and enzymatic activities for degrading NMP are unknown. By developing molecular biology techniques for Alicycliphilus sp. strain BQ1, an environmental bacterium able to grow in NMP, we identified a six-gene cluster encoding enzymatic activities involved in NMP degradation. These findings set the basis for the study of new enzymatic activities and for the development of biotechnological processes with potential applications in bioremediation. PMID- 29030444 TI - Aerobic Anoxygenic Photosynthesis Is Commonly Present within the Genus Limnohabitans. AB - The genus Limnohabitans (Comamonadaceae, Betaproteobacteria) is a common and a highly active component of freshwater bacterioplanktonic communities. To date, the genus has been considered to contain only heterotrophic species. In this study, we detected the photosynthesis genes pufLM and bchY in 28 of 46 strains from three Limnohabitans lineages. The pufM sequences obtained are very closely related to environmental pufM sequences detected in various freshwater habitats, indicating the ubiquity and potential importance of photoheterotrophic Limnohabitans in nature. Additionally, we sequenced and analyzed the genomes of 5 potentially photoheterotrophic Limnohabitans strains, to gain further insights into their phototrophic capacity. The structure of the photosynthesis gene cluster turned out to be highly conserved within the genus Limnohabitans and also among all potentially photosynthetic Betaproteobacteria strains. The expression of photosynthetic complexes was detected in a culture of Limnohabitans planktonicus II-D5T using spectroscopic and pigment analyses. This was further verified by a novel combination of infrared microscopy and fluorescent in situ hybridization.IMPORTANCE The data presented document that the capacity to perform anoxygenic photosynthesis is common among the members of the genus Limnohabitans, indicating that they may have a novel role in freshwater habitats. PMID- 29030445 TI - Microhomology-Mediated High-Throughput Gene Inactivation Strategy for the Hyperthermophilic Crenarchaeon Sulfolobus islandicus. AB - Sulfolobus islandicus is rapidly emerging as a model system for studying the biology and evolution within the TACK lineage of the archaeal domain. As the tree of life grows, identifying the cellular functions of genes within this lineage will have significant impacts on our understanding of the evolution of the last archaeal eukaryote common ancestor (LEACA) and the differentiation of archaea from eukaryotes during the evolution of the modern-day cell. To increase our understanding of this key archaeal organism, we report a novel high-throughput method for targeted gene inactivation in S. islandicus through one-step microhomology-directed homologous recombination (HR). We validated the efficacy of this approach by systematically deleting 21 individual toxin-antitoxin gene pairs and its application to delete chromosomal regions as large as 50 kb. Sequence analysis of 96 ArgD+ transformants showed that S. islandicus can effectively incorporate donor markers as short segments through HR in a continuous or discontinuous manner. We determined that the minimal size of homology allowing native argD marker replacement was as few as 10 bp, whereas argD marker replacement was frequently observed when increasing the size of homology to 30 to 50 bp. The microhomology-mediated gene inactivation system developed here will greatly facilitate isolation of S. islandicus gene deletion strains, making generation of a collection of genome-wide targeted mutants feasible and providing a tool to investigate homologous recombination in this organism.IMPORTANCE Current procedures for the construction of deletion mutants of S. islandicus are still tedious and time-consuming. We developed a novel procedure based on microhomology-mediated HR, allowing for rapid and efficient removal for genetic regions as large as 50 kb. Our work will greatly facilitate functional genomic studies in this promising model organism. Additionally, we developed a quantitative genetic assay to measure HR properties in S. islandicus, providing evidence that the ability to incorporate short, mismatched donor DNA into the genome through HR was probably a common trait for members of the Sulfolobus genus that are recombinogenic. PMID- 29030446 TI - Use of Comparative Genomics-Based Markers for Discrimination of Host Specificity in Fusarium oxysporum. AB - The polyphyletic nature of many formae speciales of Fusarium oxysporum prevents molecular identification of newly encountered strains based on conserved, vertically inherited genes. Alternative molecular detection methods that could replace labor- and time-intensive disease assays are therefore highly desired. Effectors are functional elements in the pathogen-host interaction and have been found to show very limited sequence diversity between strains of the same forma specialis, which makes them potential markers for host-specific pathogenicity. We therefore compared candidate effector genes extracted from 60 existing and 22 newly generated genome assemblies, specifically targeting strains affecting cucurbit plant species. Based on these candidate effector genes, a total of 18 PCR primer pairs were designed to discriminate between each of the seven Cucurbitaceae-affecting formae speciales When tested on a collection of strains encompassing different clonal lineages of these formae speciales, nonpathogenic strains, and strains of other formae speciales, they allowed clear recognition of the host range of each evaluated strain. Within Fusarium oxysporum f. sp. melonis more genetic variability exists than anticipated, resulting in three F. oxysporum f. sp. melonis marker patterns that partially overlapped with the cucurbit infecting Fusarium oxysporum f. sp. cucumerinum, Fusarium oxysporum f. sp. niveum, Fusarium oxysporum f. sp. momordicae, and/or Fusarium oxysporum f. sp. lagenariae For F. oxysporum f. sp. niveum, a multiplex TaqMan assay was evaluated and was shown to allow quantitative and specific detection of template DNA quantities as low as 2.5 pg. These results provide ready-to-use marker sequences for the mentioned F. oxysporum pathogens. Additionally, the method can be applied to find markers distinguishing other host-specific forms of F. oxysporumIMPORTANCE Pathogenic strains of Fusarium oxysporum are differentiated into formae speciales based on their host range, which is normally restricted to only one or a few plant species. However, horizontal gene transfer between strains in the species complex has resulted in a polyphyletic origin of host specificity in many of these formae speciales This hinders accurate and rapid pathogen detection through molecular methods. In our research, we compared the genomes of 88 strains of F. oxysporum with each other, specifically targeting virulence-related genes that are typically highly similar within each forma specialis Using this approach, we identified marker sequences that allow the discrimination of F. oxysporum strains affecting various cucurbit plant species through different PCR-based methods. PMID- 29030447 TI - Housefly (Musca domestica) and Blow Fly (Protophormia terraenovae) as Vectors of Bacteria Carrying Colistin Resistance Genes. AB - Flies have the capacity to transfer pathogens between different environments, acting as one of the most important vectors of human diseases worldwide. In this study, we trapped flies on a university campus and tested them for mobile resistance genes against colistin, a last-resort antibiotic in human medicine for treating clinical infections caused by multidrug-resistant Gram-negative bacteria. Quantitative PCR assays we developed showed that 34.1% of Musca domestica (86/252) and 51.1% of Protophormia terraenovae (23/45) isolates were positive for the mcr-1 gene, 1.2% of M. domestica (3/252) and 2.2% of P. terraenovae (2.2%, 1/45) isolates were positive for mcr-2, and 5.2% of M. domestica (13/252) and 44.4% of P. terraenovae (20/45) isolates were positive for mcr-3 Overall, 4.8% (9/189) of bacteria isolated from the flies were positive for the mcr-1 gene (Escherichia coli: 8.3%, 4/48; Enterobacter cloacae: 12.5%, 1/8; Providencia alcalifaciens: 11.8%, 2/17; Providencia stuartii: 4.9%, 2/41), while none were positive for mcr-2 and mcr-3 Four mcr-1-positive isolates (two P. stuartii and two P. alcalifaciens) from blow flies trapped near a dumpster had a MIC for colistin above 4 mg/ml. This study reports mcr-1 carriage in Providencia spp. and detection of mcr-2 and mcr-3 after their initial identification in Belgium and China, respectively. This study suggests that flies might contribute significantly to the dissemination of bacteria, carrying these genes into a large variety of ecological niches. Further studies are warranted to explore the roles that flies might play in the spread of colistin resistance genes.IMPORTANCE Antimicrobial resistance is recognized as one of the most serious global threats to human health. An option for treatment of the Gram-negative ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) bacteria with multiple drug resistance was the reintroduction of the older antibiotic colistin. However, a mobile colistin resistance gene (mcr-1) has recently been found to occur widely; very recently, two other colistin resistance genes (mcr-2 and mcr-3) have been identified in Belgium and China, respectively. In this study, we report the presence of colistin resistance genes in flies. This study also reports the carriage of colistin resistance genes in the genus Providencia and detection of mcr-2 and mcr-3 after their initial identification. This study will stimulate more in-depth studies to fully elucidate the transmission mechanisms of the colistin resistance genes and their interaction. PMID- 29030448 TI - Prevalence and Antimicrobial Resistance of Enterococci Isolated from Retail Meats in the United States, 2002 to 2014. AB - Bacteria of the genus Enterococcus are important human pathogens that are frequently resistant to a number of clinically important antibiotics. They are also used as markers of animal fecal contamination of human foods and are employed as sentinel organisms for tracking trends in resistance to antimicrobials with Gram-positive activity. As part of the National Antimicrobial Resistance Monitoring System (NARMS), we evaluated several retail meat commodities for the presence of enterococci from 2002 to 2014, and we found 92.0% to be contaminated. The majority of isolates were either Enterococcus faecalis (64.0%) or Enterococcus faecium (28.6%), and the antimicrobial resistance of each isolate was assessed by broth microdilution. The resistance prevalences for several drugs, including erythromycin and gentamicin, were significantly higher among poultry isolates, compared to retail beef or pork isolates. None of the isolates was resistant to the clinically important human drug vancomycin, only 1 isolate was resistant to linezolid, and resistance to tigecycline was below 1%. In contrast, a majority of both E. faecalis (67.5%) and E. faecium (53.7%) isolates were resistant to tetracycline. Overall, the robust NARMS testing system employed consistent sampling practices and methods throughout the testing period, with the only significant trend in resistance prevalence being decreased E. faecium resistance to penicillin. These data provide excellent baseline levels of resistance that can be used to measure future changes in resistance prevalence that may result from alterations in the use of antimicrobials in food animal production.IMPORTANCE Enterococci, including E. faecalis and E. faecium, are present in the guts of food-producing animals and are used as a measure of fecal contamination of meat. We used the large consistent sampling methods of NARMS to assess the prevalence of Enterococcus strains isolated from retail meats, and we found over 90% of meats to be contaminated with enterococci. We also assessed the resistance of the Enterococcus strains, commonly used as a measure of resistance to agents with Gram-positive activity, in foods. Resistance prevalence was over 25% for some antimicrobials and sample sources but was less than 1% for several of the most important therapeutic agents used in human medicine. PMID- 29030449 TI - Plantaricyclin A, a Novel Circular Bacteriocin Produced by Lactobacillus plantarum NI326: Purification, Characterization, and Heterologous Production. AB - Bacteriocins from lactic acid bacteria (LAB) are of increasing interest in recent years due to their potential as natural preservatives against food and beverage spoilage microorganisms. In a screening study for LAB, we isolated from olives a strain, Lactobacillus plantarum NI326, with activity against the beverage spoilage bacterium Alicyclobacillus acidoterrestris Genome sequencing of NI326 enabled the identification of a gene cluster (designated plc) encoding a putative circular bacteriocin and proteins involved in its modification, transport, and immunity. This novel bacteriocin, named plantaricyclin A (PlcA), was grouped into the circular bacteriocin subgroup II due to its high degree of similarity with other gassericin A-like bacteriocins. Purification of PlcA from the supernatant of Lb. plantarum NI326 resulted in an active peptide with a molecular mass of 5,570 Da, corresponding to that predicted from the (processed) PlcA amino acid sequence. The plc gene cluster was cloned and expressed in Lactococcus lactis NZ9000, resulting in the production of an active 5,570-Da bacteriocin in the supernatant. PlcA is believed to be produced as a 91-amino-acid precursor with a 33-amino-acid leader peptide, which is predicted to be removed, followed by joining of the N and C termini via a covalent linkage to form the mature 58-amino acid circular bacteriocin PlcA. We report the characterization of a circular bacteriocin produced by Lb. plantarum The inhibition displayed against A. acidoterrestris highlights its potential use as a preservative in food and beverages.IMPORTANCE In this work, we describe the purification and characterization of an antimicrobial peptide, termed plantaricyclin A (PlcA), produced by a Lactobacillus plantarum strain isolated from olives. This peptide has a circular structure, and all genes involved in its production, circularization, and secretion were identified. PlcA shows antimicrobial activity against different strains, including Alicyclobacillus acidoterrestris, a common spoilage bacterium, which causes substantial economic losses in the beverage industry every year. In this study, we describe a circular antimicrobial peptide, PlcA, for a Lactobacillus plantarum strain. PMID- 29030450 TI - Effect of concussion and blast exposure on symptoms after military deployment. AB - OBJECTIVE: To examine whether blast exposure alone and blast-associated concussion result in similar neurologic and mental health symptoms. METHODS: A 14 item questionnaire was administered to male US Marines on their return from deployment in Iraq and/or Afghanistan. RESULTS: A total of 2,612 Marines (median age 22 years) completed the survey. Of those, 2,320 (88.9%) reported exposure to >=1 blast during their current and/or prior deployments. In addition, 1,022 (39.1%) reported >=1 concussion during the current deployment, and 731 (28.0%) had experienced at least 1 prior lifetime concussion. Marines were more likely to have sustained a concussion during the current deployment if they had a history of 1 (odds ratio [OR] 1.5, 95% confidence interval [CI] 1.2-2.0) or >=1 (OR 2.3, 95% CI 1.7-3.0) prior concussion. The most common symptoms were trouble sleeping (38.4%), irritability (37.9%), tinnitus (33.8%), and headaches (33.3%). Compared to those experiencing blast exposure without injury, Marines either experiencing a concussion during the current deployment or being moved or injured by a blast had an increased risk of postinjury symptoms. CONCLUSIONS: There appears to be a continuum of increasing total symptoms from no exposure to blast exposure plus both current deployment concussion and past concussion. Concussion had a greater influence than blast exposure alone on the presence of postdeployment symptoms. A high blast injury score can be used to triage those exposed to explosive blasts for evaluation. PMID- 29030451 TI - Weighting and standardization of frequencies to determine prevalence of AD imaging biomarkers. AB - OBJECTIVE: To estimate the prevalence of elevated brain amyloid and reduced cortical thickness (as a marker for neurodegeneration) in a defined population. METHODS: Mayo Clinic Study of Aging participants underwent MRI to assess a composite Alzheimer disease (AD) signature cortical thickness measure and PET to assess brain amyloid accumulation. Participants were characterized as having elevated amyloid (A+/A-), reduced cortical thickness (N+/N-), and A+N+, A+N-, A N+, or A-N-. The prevalence of AD biomarkers was derived by adjusting for nonparticipation and standardizing to the Olmsted County, Minnesota, population. RESULTS: Among 1,646 participants without dementia (mean age 70.8 years; 53.2% men), the prevalence (95% confidence interval) of amyloidosis was 21.1% (19.1% 23.2%): women, 24.3%; men, 17.5%. The prevalence of reduced cortical thickness was 28.9% (26.4%-31.5%): women, 27.9%; men, 30.2%. The prevalence estimates of biomarker categories were as follows: A-N-: 61.4%; A+N-: 9.7%; A-N+: 17.4%; and A+N+: 11.5%, and varied by sex and by APOE epsilon4 carrier status. In men, prevalence estimates were as follows: A-N-: 62.6%; A+N-: 7.3%; A-N+: 19.9%; and A+N+: 10.2%. In women, prevalence estimates were as follows: A-N-: 60.4%; A+N-: 11.7%; A-N+: 15.3%; and A+N+: 12.6%. In epsilon4 carriers, prevalence estimates were as follows: A-N-: 54.6%; A+N-: 16.6%; A-N+: 12.4%; and A+N+: 16.4%. In non epsilon4 carriers, prevalence estimates were as follows: A-N-: 63.3%; A+N-: 6.9%; A-N+: 19.9%; and A+N+: 10.0%. CONCLUSIONS: These prevalence estimates are important for understanding age-related trends in amyloid positivity and AD signature cortical thickness in the population, and for potentially projecting the future burden of biomarkers in elderly persons. PMID- 29030453 TI - GABA alterations in pediatric sport concussion. AB - OBJECTIVE: To evaluate whether frontal-lobe magnetic resonance spectroscopy measures of gamma-aminobutyric acid (GABA) would be altered in a sample of adolescents scanned after sport concussion because mild traumatic brain injury is often associated with working memory problems. METHODS: Eleven adolescents (age 14-17 years) who had sustained a first-time sport concussion were studied with MRI/magnetic resonance spectroscopy within 23 to 44 days after injury (mean 30.4 +/- 6.1 days). Age- and sex-matched healthy controls, being seen for sports related injuries not involving the head and with no history of concussion, were also examined. GABA/creatine + phosphocreatine (Cre) was measured in left-sided frontal lobe and central posterior cingulate regions. The frontal voxel was positioned to overlap with patient-specific activation on a 1-back working memory task. RESULTS: Increased GABA/Cre was shown in the frontal lobe for the concussed group. A decreased relationship was observed in the parietal region. High correlations between GABA/Cre and task activation were observed for the control group in the frontal lobe, a relationship not shown in the concussed participants. CONCLUSIONS: GABA/Cre appears increased in a region colocalized with working memory task activation after sport concussion. Further work extending these results in larger samples and at time points across the injury episode will aid in refining the clinical significance of these observations. PMID- 29030454 TI - Infliximab for the treatment of CNS sarcoidosis: A multi-institutional series. AB - OBJECTIVE: To describe clinical and imaging responses in neurosarcoidosis to infliximab, a monoclonal antibody against tumor necrosis factor-alpha. METHODS: Investigators at 6 US centers retrospectively identified patients with CNS sarcoidosis treated with infliximab, including only patients with definite or probable neurosarcoidosis following rigorous exclusion of other causes. RESULTS: Of 66 patients with CNS sarcoidosis (27 definite, 39 probable) treated with infliximab for a median of 1.5 years, the mean age was 47.5 years at infliximab initiation (SD 11.7, range 24-71 years); 56.1% were female; 62.1% were white, 37.0% African American, and 3% Hispanic. Sarcoidosis was isolated to the CNS in 19.7%. Using infliximab doses ranging from 3 to 7 mg/kg every 4-8 weeks, MRI evidence of a favorable treatment response was observed in 82.1% of patients with imaging follow-up (n = 56), with complete remission of active disease in 51.8% and partial MRI improvement in 30.1%; MRI worsened in 1 patient (1.8%). There was clinical improvement in 77.3% of patients, with complete neurologic recovery in 28.8%, partial improvement in 48.5%, clinical stability in 18.2%, worsening in 3%, and 1 lost to follow-up. In 16 patients in remission when infliximab was discontinued, the disease recurred in 9 (56%), typically in the same neuroanatomic location. CONCLUSIONS: Most patients with CNS sarcoidosis treated with infliximab exhibit favorable imaging and clinical treatment responses, including some previously refractory to other immunosuppressive treatments. CLASSIFICATION OF EVIDENCE: This study provides Class IV evidence that for patients with CNS sarcoidosis infliximab is associated with favorable imaging and clinical responses. PMID- 29030455 TI - Optimal deep brain stimulation site and target connectivity for chronic cluster headache. AB - OBJECTIVE: To investigate the mechanism of action of deep brain stimulation for refractory chronic cluster headache and the optimal target within the ventral tegmental area. METHODS: Seven patients with refractory chronic cluster headache underwent high spatial and angular resolution diffusion MRI preoperatively. MRI guided and MRI-verified electrode implantation was performed unilaterally in 5 patients and bilaterally in 2. Volumes of tissue activation were generated around active lead contacts with a finite-element model. Twelve months after surgery, voxel-based morphometry was used to identify voxels associated with higher reduction in headache load. Probabilistic tractography was used to identify the brain connectivity of the activation volumes in responders, defined as patients with a reduction of >=30% in headache load. RESULTS: There was no surgical morbidity. Average follow-up was 34 +/- 14 months. Patients showed reductions of 76 +/- 33% in headache load, 46 +/- 41% in attack severity, 58 +/- 41% in headache frequency, and 51 +/- 46% in attack duration at the last follow-up. Six patients responded to treatment. Greatest reduction in headache load was associated with activation in an area cantered at 6 mm lateral, 2 mm posterior, and 1 mm inferior to the midcommissural point of the third ventricle. Average responders' activation volume lay on the trigeminohypothalamic tract, connecting the trigeminal system and other brainstem nuclei associated with nociception and pain modulation with the hypothalamus, and the prefrontal and mesial temporal areas. CONCLUSIONS: We identify the optimal stimulation site and structural connectivity of the deep brain stimulation target for cluster headache, explicating possible mechanisms of action and disease pathophysiology. PMID- 29030452 TI - Longitudinal CSF biomarkers in patients with early Parkinson disease and healthy controls. AB - OBJECTIVE: To analyze longitudinal levels of CSF biomarkers in drug-naive patients with Parkinson disease (PD) and healthy controls (HC), examine the extent to which these biomarker changes relate to clinical measures of PD, and identify what may influence them. METHODS: CSF alpha-synuclein (alpha-syn), total and phosphorylated tau (t- and p-tau), and beta-amyloid 1-42 (Abeta42) were measured at baseline and 6 and 12 months in 173 patients with PD and 112 matched HC in the international multicenter Parkinson's Progression Marker Initiative. Baseline clinical and demographic variables, PD medications, neuroimaging, and genetic variables were evaluated as potential predictors of CSF biomarker changes. RESULTS: CSF biomarkers were stable over 6 and 12 months, and there was a small but significant increase in CSF Abeta42 in both patients with patients with PD and HC from baseline to 12 months. The t-tau remained stable. The p-tau increased marginally more in patients with PD than in HC. alpha-syn remained relatively stable in patients with PD and HC. Ratios of p-tau/t-tau increased, while t-tau/Abeta42 decreased over 12 months in patients with PD. CSF biomarker changes did not correlate with changes in Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale motor scores or dopamine imaging. CSF alpha-syn levels at 12 months were lower in patients with PD treated with dopamine replacement therapy, especially dopamine agonists. CONCLUSIONS: These core CSF biomarkers remained stable over 6 and 12 months in patients with early PD and HC. PD medication use may influence CSF alpha-syn. Novel biomarkers are needed to better profile progressive neurodegeneration in PD. PMID- 29030457 TI - Adding quantitative muscle MRI to the FSHD clinical trial toolbox. AB - OBJECTIVE: To add quantitative muscle MRI to the clinical trial toolbox for facioscapulohumeral muscular dystrophy (FSHD) by correlating it to clinical outcome measures in a large cohort of genetically and clinically well characterized patients with FSHD comprising the entire clinical spectrum. METHODS: Quantitative MRI scans of leg muscles of 140 patients with FSHD1 and FSHD2 were assessed for fatty infiltration and TIRM hyperintensities and were correlated to multiple clinical outcome measures. RESULTS: The mean fat fraction of the total leg musculature correlated highly with the motor function measure, FSHD clinical score, Ricci score, and 6-minute walking test (correlation coefficients -0.845, 0.835, 0.791, -0.701, respectively). Fat fraction per muscle group correlated well with corresponding muscle strength (correlation coefficients up to -0.82). The hamstring muscles, adductor muscles, rectus femoris, and gastrocnemius medialis were affected most frequently, also in early stage disease and in patients without leg muscle weakness. Muscle involvement was asymmetric in 20% of all muscle pairs and fatty infiltration within muscles showed a decrease from distal to proximal of 3.9%. TIRM hyperintense areas, suggesting inflammation, were found in 3.5% of all muscles, with and without fatty infiltration. CONCLUSIONS: We show a strong correlation between quantitative muscle MRI and clinical outcome measures. Muscle MRI is able to detect muscle pathology before clinical involvement of the leg muscles. This indicates that quantitative leg muscle MRI is a promising biomarker that captures disease severity and motor functioning and can thus be included in the FSHD trial toolbox. PMID- 29030456 TI - Association between percent decline in serum total homocysteine and risk of first stroke. AB - OBJECTIVE: To examine whether a change in serum total homocysteine (tHcy) levels is associated with first stroke risk in a post hoc analysis of the China Stroke Primary Prevention Trial (CSPPT). METHODS: We analyzed 16,867 participants of the CSPPT with tHcy measurements at both baseline and exit visits. The primary outcome was first stroke. The secondary outcome was a composite of cardiovascular events consisting of cardiovascular death, myocardial infarction, and stroke. The percent decline in tHcy was calculated as [(baseline tHcy - exit tHcy)/baseline tHcy * 100]. RESULTS: Over the median treatment duration of 4.5 years, participants who developed a first stroke had a significantly lower percent decline in tHcy (beta = -5.7; 95% confidence interval [CI] -8.8 to -2.6) compared to their counterparts. A 20% tHcy decline was associated with a reduction in stroke risk of 7% (hazard ratio [HR] 0.93; 95% CI 0.90-0.97). When percent decline in tHcy was assessed as tertiles, a significantly lower stroke risk was found in those in tertiles 2-3 (HR 0.79; 95% CI 0.64-0.97) compared with participants in tertile 1. Similar results were observed for the composite of cardiovascular events. The beneficial effect associated with greater tHcy reduction was observed across strata for age, sex, treatment group (with vs without folic acid), MTHFR C677T genotypes, baseline tHcy and serum folate levels, and blood pressure control. CONCLUSIONS: Percent lowering in tHcy was significantly associated with a reduction in first stroke risk in Chinese adults with hypertension, and if further confirmed, may serve as a useful indicator for folic acid treatment efficacy on stroke prevention. CLINICALTRIALSGOV IDENTIFIER: NCT00794885. PMID- 29030461 TI - Varied terrain. PMID- 29030458 TI - A noncanonical function of cGAMP in inflammasome priming and activation. AB - Recognition of pathogen-associated molecular patterns and danger-associated molecular patterns by host cells is an important step in innate immune activation. The DNA sensor cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) synthase (cGAS) binds to DNA and produces cGAMP, which in turn binds to stimulator of interferon genes (STING) to activate IFN-I. Here we show that cGAMP has a noncanonical function in inflammasome activation in human and mouse cells. Inflammasome activation requires two signals, both of which are activated by cGAMP. cGAMP alone enhances expression of inflammasome components through IFN-I, providing the priming signal. Additionally, when combined with a priming signal, cGAMP activates the inflammasome through an AIM2, NLRP3, ASC, and caspase-1 dependent process. These two cGAMP-mediated functions, priming and activation, have differential requirements for STING. Temporally, cGAMP induction of IFN-I precedes inflammasome activation, which then occurs when IFN-I is waning. In mice, cGAS/cGAMP amplify both inflammasome and IFN-I to control murine cytomegalovirus. Thus, cGAMP activates the inflammasome in addition to IFN-I, and activation of both is needed to control infection by a DNA virus. PMID- 29030459 TI - Household triclosan and triclocarban effects on the infant and maternal microbiome. AB - In 2016, the US Food and Drug Administration banned the use of specific microbicides in some household and personal wash products due to concerns that these chemicals might induce antibiotic resistance or disrupt human microbial communities. Triclosan and triclocarban (referred to as TCs) are the most common antimicrobials in household and personal care products, but the extent to which TC exposure perturbs microbial communities in humans, particularly during infant development, was unknown. We conducted a randomized intervention of TC-containing household and personal care products during the first year following birth to characterize whether TC exposure from wash products perturbs microbial communities in mothers and their infants. Longitudinal survey of the gut microbiota using 16S ribosomal RNA amplicon sequencing showed that TC exposure from wash products did not induce global reconstruction or loss of microbial diversity of either infant or maternal gut microbiotas. Broadly antibiotic resistant species from the phylum Proteobacteria, however, were enriched in stool samples from mothers in TC households after the introduction of triclosan containing toothpaste. When compared by urinary triclosan level, agnostic to treatment arm, infants with higher triclosan levels also showed an enrichment of Proteobacteria species. Despite the minimal effects of TC exposure from wash products on the gut microbial community of infants and adults, detected taxonomic differences highlight the need for consumer safety testing of antimicrobial self care products on the human microbiome and on antibiotic resistance. PMID- 29030460 TI - HMG-CoA Reductase Inhibition Delays DNA Repair and Promotes Senescence After Tumor Irradiation. AB - Despite significant advances in combinations of radiotherapy and chemotherapy, altered fractionation schedules and image-guided radiotherapy, many cancer patients fail to benefit from radiation. A prevailing hypothesis is that targeting repair of DNA double strand breaks (DSB) can enhance radiation effects in the tumor and overcome therapeutic resistance without incurring off-target toxicities. Unrepaired DSBs can block cancer cell proliferation, promote cancer cell death, and induce cellular senescence. Given the slow progress to date translating novel DSB repair inhibitors as radiosensitizers, we have explored drug repurposing, a proven route to improving speed, costs, and success rates of drug development. In a prior screen where we tracked resolution of ionizing radiation-induced foci (IRIF) as a proxy for DSB repair, we had identified pitavastatin (Livalo), an HMG-CoA reductase inhibitor commonly used for lipid lowering, as a candidate radiosensitizer. Here, we report that pitavastatin and other lipophilic statins are potent inhibitors of DSB repair in breast and melanoma models both in vitro and in vivo When combined with ionizing radiation, pitavastatin increased persistent DSBs, induced senescence, and enhanced acute effects of radiation on radioresistant melanoma tumors. shRNA knockdown implicated HMG-CoA reductase, farnesyl diphosphate synthase, and protein farnesyl transferase in IRIF resolution, DSB repair, and senescence. These data confirm on target activity of statins, although via inhibition of protein prenylation rather than cholesterol biosynthesis. In light of prior studies demonstrating enhanced efficacy of radiotherapy in patients taking statins, this work argues for clinical evaluation of lipophilic statins as nontoxic radiosensitizers to enhance the benefits of image-guided radiotherapy. Mol Cancer Ther; 17(2); 407-18. (c)2017 AACRSee all articles in this MCT Focus section, "Developmental Therapeutics in Radiation Oncology." PMID- 29030462 TI - Selective ophthalmic artery chemosurgery (SOAC) for retinoblastoma: fluoroscopic time and radiation dose parameters. A baseline study. AB - OBJECTIVE: To evaluate fluoroscopic time and radiation dose parameters, and factors affecting these parameters, during selective ophthalmic artery chemosurgery (SOAC) for retinoblastoma. MATERIALS AND METHODS: Retrospective review from the prospective database of all patients with retinoblastoma treated with SOAC over a 5-year period (September 2009-January 2015) at a single institution after receiving institutional review board approval. Patient demographics, arterial approach, access device, side of treatment, number of SOAC cycles/patient, number of drugs/SOAC, and radiation parameters (outcome variables), including the fluoroscopic time, dose-area product (DAP), and total radiation dose, were obtained from the database. Generalized linear regression was used for univariate and multivariate analysis of the outcome variables. RESULTS: In 218 patients (M:F=94:124), 272 eyes were treated by 833 SOAC infusions during 792 procedures. Mean age, weight, SOAC cycle/patient, and drugs/cycle were 19+/-19.5 months, 11.4+/-6.4 kg, 2.72+/-1.6, and 2.48+/-0.8, respectively. Mean fluoroscopic time, DAP, and doses were 10.2+/-8.4 min, 218.7+/ 240.8 cGy.cm2, and 42.3+/-41.4 mGy, respectively. Radiation parameters (fluoroscopic time, DAP, and dose) were significantly lower (p<0.001) for the ophthalmic artery (OA) approach (7.5+/-5.4; 147.7+/-138.4; 28.5+/-29.4) than with middle meningeal artery (13.4+/-5.6; 242+/-138; 51.4+/-27) and balloon-assisted infusion in the internal carotid artery (ICA; 17.8+/-11.5; 449.8+/-361; 81.8+/ 63.3). Radiation parameters for microcatheter access (8.6+/-7.1; 193.4+/-181.3; 42.3+/-37) were significantly lower (p<0.001) than with the ICA (17.8+/-11.5; 449.8+/-361; 81.8+/-63.3). Radiation parameters for bilateral IA chemotherapy (IAC; 16.8+/-11.6; 320.7+/-268.7; 60.8+/-45.6) were significantly higher (p<0.001) than for unilateral IAC (8.9+/-6.6; 212.7+/-247; 42+/-41). CONCLUSIONS: In SOAC for retinoblastoma, the OA approach, microcatheter access, and unilateral treatment were associated with significantly lower radiation parameters. We established benchmark radiation parameters for retinoblastoma SOAC in our patient cohort. PMID- 29030463 TI - Efficacy and safety of the target puncture technique for treatment of osteoporotic vertebral compression fractures with intravertebral clefts. AB - OBJECTIVE: To compare the efficacy and safety of our target puncture technique with the traditional technique during percutaneous kyphoplasty (PKP) for osteoporotic vertebral compression fractures (OVCFs) with intravertebral clefts (IVCs). METHODS: 104 patients treated with PKP for single OVCFs with IVCs were retrospectively reviewed. All patients were divided into three groups: cleft filling by the traditional technique (Group A, n=18); interdigitated filling (Group B, n=50); and overfilling by the target technique (Group C, n=36). Oswestry disability index (ODI) and visual analog scale (VAS) scores and radiological evidence of vertebral body height and kyphotic angle, cement leakage, and adjacent vertebral fractures were studied before and after surgery (immediate, 1 and 2 years). RESULTS: The ODI and VAS scores decreased for all patients and no significant difference was found between the three groups after treatment. However, 1 and 2 years after surgery a greater increase in ODI and VAS scores was observed in Group A compared with the other two groups. The initial correction of vertebral body height and kyphotic angle was not significant among the three groups. However, loss of correction was greater in Group A. No significant difference was found in cement leakage. The incidence of adjacent vertebral fractures in Group C was higher than in the other two groups. CONCLUSIONS: Different puncture techniques were initially effective for all patients with IVCs. However, cement cleft filling by the traditional technique was found to have less stability causing higher VAS/ODI scores and greater loss of correction. Hence, our target puncture technique was recommended in this study. PMID- 29030464 TI - Computed tomography interobserver agreement in the assessment of aneurysmal subarachnoid hemorrhage and predictors for clinical outcome. AB - BACKGROUND: The severity of aneurysmal subarachnoid hemorrhage (SAH) is often assessed by the clinical state of the patient on presentation, but radiological evaluation of the extent of hemorrhage has rarely been examined in the literature. Several CT scan based grading systems exist yet only a few studies have investigated interobserver agreement. We evaluated five radiological grading systems and assessed their clinical value for early prognostication. METHODOLOGY: This was a retrospective study of patients diagnosed with aneurysmal SAH with a CT scan performed within 72 hours of symptom onset. Four independent observers, blinded to patient outcome, evaluated each scan using the five grading systems. A separate assessor determined 6 month outcome from clinical records. The primary outcome was interobserver agreement for each grading system using the Fleiss kappa statistic. The secondary endpoint was the 6 month modified Rankin Scale score, with poor outcome defined as a score of 4-6. RESULTS: 165 patients with a mean age of 59 years were assessed. Interobserver agreement for the Fisher, modified Fisher, Claassen, Barrow Neurological Institute, and Hijdra grading systems were as follows: k=0.53 (moderate), k=0.42 (moderate), k=0.38 (mild), k=0.20 (poor), and k=0.66 (good), respectively. The only independent clinical risk factor for poor outcome was a World Federation of Neurological Surgeons (WFNS) grade of 4 or 5 (adjusted OR 6.55; p<0.05). After adjusting for confounders, Fisher grade 4 (adjusted OR 17.84), modified Fisher grade 4 (adjusted OR 5.65), and Hijdra grade 3 (adjusted OR 3.34) were associated with poor outcome. Receiver operator characteristic analysis revealed that the Hijdra grading system (area under the curve=0.76) was more predictive of outcome compared with the Fisher and modified Fisher systems. A Hijdra cut-off score of 22 was associated with poor outcome (adjusted OR 5.92). CONCLUSIONS: The Hijdra grading system had the best interobserver agreement and was a better independent early predictor for 6 month clinical outcome than the other systems. A Hijdra score >=22 was associated with poor outcome. PMID- 29030466 TI - Modulation of Renal GLUT2 by the Cannabinoid-1 Receptor: Implications for the Treatment of Diabetic Nephropathy. AB - Altered glucose reabsorption via the facilitative glucose transporter 2 (GLUT2) during diabetes may lead to renal proximal tubule cell (RPTC) injury, inflammation, and interstitial fibrosis. These pathologies are also triggered by activating the cannabinoid-1 receptor (CB1R), which contributes to the development of diabetic nephropathy (DN). However, the link between CB1R and GLUT2 remains to be determined. Here, we show that chronic peripheral CB1R blockade or genetically inactivating CB1Rs in the RPTCs ameliorated diabetes induced renal structural and functional changes, kidney inflammation, and tubulointerstitial fibrosis in mice. Inhibition of CB1R also downregulated GLUT2 expression, affected the dynamic translocation of GLUT2 to the brush border membrane of RPTCs, and reduced glucose reabsorption. Thus, targeting peripheral CB1R or inhibiting GLUT2 dynamics in RPTCs has the potential to treat and ameliorate DN. These findings may support the rationale for the clinical testing of peripherally restricted CB1R antagonists or the development of novel renal specific GLUT2 inhibitors against DN. PMID- 29030467 TI - Metabolic Acidosis and Subclinical Metabolic Acidosis in CKD. AB - Metabolic acidosis is not uncommon in CKD and is linked with bone demineralization, muscle catabolism, and higher risks of CKD progression and mortality. Clinical practice guidelines recommend maintaining serum total CO2 at >=22 mEq/L to help prevent these complications. Although a definitive trial testing whether correcting metabolic acidosis improves clinical outcomes has not been conducted, results from small, single-center studies support this notion. Furthermore, biologic plausibility supports the notion that a subset of patients with CKD have acid-mediated organ injury despite having a normal serum total CO2 and might benefit from oral alkali before overt acidosis develops. Identifying these individuals with subclinical metabolic acidosis is challenging, but recent results suggest that urinary acid excretion measurements may be helpful. The dose of alkali to provide in this setting is unknown as well. The review discusses these topics and the prevalence and risk factors of metabolic acidosis, mechanisms of acid-mediated organ injury, results from interventional studies, and potential harms of alkali therapy in CKD. PMID- 29030465 TI - Cluster Analysis Identifies Distinct Pathogenetic Patterns in C3 Glomerulopathies/Immune Complex-Mediated Membranoproliferative GN. AB - Membranoproliferative GN (MPGN) was recently reclassified as alternative pathway complement-mediated C3 glomerulopathy (C3G) and immune complex-mediated membranoproliferative GN (IC-MPGN). However, genetic and acquired alternative pathway abnormalities are also observed in IC-MPGN. Here, we explored the presence of distinct disease entities characterized by specific pathophysiologic mechanisms. We performed unsupervised hierarchical clustering, a data-driven statistical approach, on histologic, genetic, and clinical data and data regarding serum/plasma complement parameters from 173 patients with C3G/IC-MPGN. This approach divided patients into four clusters, indicating the existence of four different pathogenetic patterns. Specifically, this analysis separated patients with fluid-phase complement activation (clusters 1-3) who had low serum C3 levels and a high prevalence of genetic and acquired alternative pathway abnormalities from patients with solid-phase complement activation (cluster 4) who had normal or mildly altered serum C3, late disease onset, and poor renal survival. In patients with fluid-phase complement activation, those in clusters 1 and 2 had massive activation of the alternative pathway, including activation of the terminal pathway, and the highest prevalence of subendothelial deposits, but those in cluster 2 had additional activation of the classic pathway and the highest prevalence of nephrotic syndrome at disease onset. Patients in cluster 3 had prevalent activation of C3 convertase and highly electron-dense intramembranous deposits. In addition, we provide a simple algorithm to assign patients with C3G/IC-MPGN to specific clusters. These distinct clusters may facilitate clarification of disease etiology, improve risk assessment for ESRD, and pave the way for personalized treatment. PMID- 29030468 TI - Assessing the reliability of spike-in normalization for analyses of single-cell RNA sequencing data. AB - By profiling the transcriptomes of individual cells, single-cell RNA sequencing provides unparalleled resolution to study cellular heterogeneity. However, this comes at the cost of high technical noise, including cell-specific biases in capture efficiency and library generation. One strategy for removing these biases is to add a constant amount of spike-in RNA to each cell and to scale the observed expression values so that the coverage of spike-in transcripts is constant across cells. This approach has previously been criticized as its accuracy depends on the precise addition of spike-in RNA to each sample. Here, we perform mixture experiments using two different sets of spike-in RNA to quantify the variance in the amount of spike-in RNA added to each well in a plate-based protocol. We also obtain an upper bound on the variance due to differences in behavior between the two spike-in sets. We demonstrate that both factors are small contributors to the total technical variance and have only minor effects on downstream analyses, such as detection of highly variable genes and clustering. Our results suggest that scaling normalization using spike-in transcripts is reliable enough for routine use in single-cell RNA sequencing data analyses. PMID- 29030471 TI - Retraction for Lee et al., "The BCL11A Transcription Factor Directly Activates RAG Gene Expression and V(D)J Recombination". PMID- 29030470 TI - Single-cell sequencing data reveal widespread recurrence and loss of mutational hits in the life histories of tumors. AB - Intra-tumor heterogeneity poses substantial challenges for cancer treatment. A tumor's composition can be deduced by reconstructing its mutational history. Central to current approaches is the infinite sites assumption that every genomic position can only mutate once over the lifetime of a tumor. The validity of this assumption has never been quantitatively assessed. We developed a rigorous statistical framework to test the infinite sites assumption with single-cell sequencing data. Our framework accounts for the high noise and contamination present in such data. We found strong evidence for the same genomic position being mutationally affected multiple times in individual tumors for 11 of 12 single-cell sequencing data sets from a variety of human cancers. Seven cases involved the loss of earlier mutations, five of which occurred at sites unaffected by large-scale genomic deletions. Four cases exhibited a parallel mutation, potentially indicating convergent evolution at the base pair level. Our results refute the general validity of the infinite sites assumption and indicate that more complex models are needed to adequately quantify intra-tumor heterogeneity for more effective cancer treatment. PMID- 29030469 TI - Single-cell gene expression analysis reveals regulators of distinct cell subpopulations among developing human neurons. AB - The stochastic dynamics and regulatory mechanisms that govern differentiation of individual human neural precursor cells (NPC) into mature neurons are currently not fully understood. Here, we used single-cell RNA-sequencing (scRNA-seq) of developing neurons to dissect/identify NPC subtypes and critical developmental stages of alternative lineage specifications. This study comprises an unsupervised, high-resolution strategy for identifying cell developmental bifurcations, tracking the stochastic transcript kinetics of the subpopulations, elucidating regulatory networks, and finding key regulators. Our data revealed the bifurcation and developmental tracks of the two NPC subpopulations, and we captured an early (24 h) transition phase that leads to alternative neuronal specifications. The consequent up-regulation and down-regulation of stage- and subpopulation-specific gene groups during the course of maturation revealed biological insights with regard to key regulatory transcription factors and lincRNAs that control cellular programs in the identified neuronal subpopulations. PMID- 29030472 TI - Erratum for Salma et al., "Tfe3 and Tfeb Transcriptionally Regulate Peroxisome Proliferator-Activated Receptor gamma2 Expression in Adipocytes and Mediate Adiponectin and Glucose Levels in Mice". PMID- 29030473 TI - Letter by Tsivgoulis et al Regarding Article, "Microbleeds, Cerebral Hemorrhage, and Functional Outcome After Stroke Thrombolysis: Individual Patient Data Meta Analysis". PMID- 29030474 TI - Off-Label Use of Direct Oral Anticoagulants in Intracerebral Hemorrhage Patients With Prosthetic Valves. PMID- 29030475 TI - Statins for Neuroprotection After Acute Ischemic Stroke: ASSORTed Results But More Trials Needed. PMID- 29030476 TI - Added Value of Vessel Wall Magnetic Resonance Imaging for Differentiation of Nonocclusive Intracranial Vasculopathies. AB - BACKGROUND AND PURPOSE: Our goal is to determine the added value of intracranial vessel wall magnetic resonance imaging (IVWI) in differentiating nonocclusive vasculopathies compared with luminal imaging alone. METHODS: We retrospectively reviewed images from patients with both luminal and IVWI to identify cases with clinically defined intracranial vasculopathies: atherosclerosis (intracranial atherosclerotic disease), reversible cerebral vasoconstriction syndrome, and inflammatory vasculopathy. Two neuroradiologists blinded to clinical data reviewed the luminal imaging of defined luminal stenoses/irregularities and evaluated the pattern of involvement to make a presumed diagnosis with diagnostic confidence. Six weeks later, the 2 raters rereviewed the luminal imaging in addition to IVWI for the pattern of wall involvement, presence and pattern of postcontrast enhancement, and presumed diagnosis and confidence. Analysis was performed on per-lesion and per-patient bases. RESULTS: Thirty intracranial atherosclerotic disease, 12 inflammatory vasculopathies, and 12 reversible cerebral vasoconstriction syndrome patients with 201 lesions (90 intracranial atherosclerotic disease, 64 reversible cerebral vasoconstriction syndrome, and 47 inflammatory vasculopathy lesions) were included. For both per-lesion and per patient analyses, there was significant diagnostic accuracy improvement with luminal imaging+IVWI when compared with luminal imaging alone (per-lesion: 88.8% versus 36.1%; P<0.001 and per-patient: 96.3% versus 43.5%; P<0.001, respectively). There was substantial interrater diagnostic agreement for luminal imaging+IVWI (kappa=0.72) and only slight agreement for luminal imaging (kappa=0.04). Although there was a significant correlation for both luminal and IVWI pattern of wall involvement with diagnosis, there was a stronger correlation for IVWI finding of lesion eccentricity and intracranial atherosclerotic disease diagnosis than for luminal imaging (kappa=0.69 versus 0.18; P<0.001). CONCLUSIONS: IVWI can significantly improve the differentiation of nonocclusive intracranial vasculopathies when combined with traditional luminal imaging modalities. PMID- 29030477 TI - Response by Werring and Charidimou to Letter Regarding Article, "Microbleeds, Cerebral Hemorrhage, and Functional Outcome After Stroke Thrombolysis: Individual Patient Data Meta-Analysis". PMID- 29030478 TI - Randomized Controlled Trial of Early Versus Delayed Statin Therapy in Patients With Acute Ischemic Stroke: ASSORT Trial (Administration of Statin on Acute Ischemic Stroke Patient). AB - BACKGROUND AND PURPOSE: Several studies suggested that statins during hospitalization were associated with better disability outcomes in patients with acute ischemic stroke, but only 1 small randomized trial is available. METHODS: We conducted a multicenter, open-label, randomized controlled trial in patients with acute ischemic strokes in 11 hospitals in Japan. Patients with acute ischemic stroke and dyslipidemia randomly received statins within 24 hours after admission in the early group or on the seventh day in the delayed group, in a 1:1 ratio. Statins were administered for 12 weeks. The primary outcome was patient disability assessed by modified Rankin Scale at 90 days. RESULTS: A total of 257 patients were randomized and analyzed (early 131, delayed 126). At 90 days, modified Rankin Scale score distribution did not differ between groups (P=0.68), and the adjusted common odds ratio of the early statin group was 0.84 (95% confidence interval, 0.53-1.3; P=0.46) compared with the delayed statin group. There were 3 deaths at 90 days (2 in the early group, 1 in the delayed group) because of malignancy. Ischemic stroke recurred in 9 patients (6.9%) in the early group and 5 patients (4.0%) in the delayed group. The safety profile was similar between groups. CONCLUSIONS: Our randomized trial involving patients with acute ischemic stroke and dyslipidemia did not show any superiority of early statin therapy within 24 hours of admission compared with delayed statin therapy 7 days after admission to alleviate the degree of disability at 90 days after onset. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT02549846. PMID- 29030480 TI - Intersectin-s interaction with DENND2B facilitates recycling of epidermal growth factor receptor. AB - Epidermal growth factor (EGF) activates the EGF receptor (EGFR) and stimulates its internalization and trafficking to lysosomes for degradation. However, a percentage of EGFR undergoes ligand-independent endocytosis and is rapidly recycled back to the plasma membrane. Importantly, alterations in EGFR recycling are a common hallmark of cancer, and yet, our understanding of the machineries controlling the fate of endocytosed EGFR is incomplete. Intersectin-s is a multi domain adaptor protein that is required for internalization of EGFR Here, we discover that intersectin-s binds DENND2B, a guanine nucleotide exchange factor for the exocytic GTPase Rab13, and this interaction promotes recycling of ligand free EGFR to the cell surface. Intriguingly, upon EGF treatment, DENND2B is phosphorylated by protein kinase D and dissociates from intersectin-s, allowing for receptor targeting to degradation. Our study thus reveals a novel mechanism controlling the fate of internalized EGFR with important implications for cancer. PMID- 29030479 TI - Lipids at membrane contact sites: cell signaling and ion transport. AB - Communication between organelles is essential to coordinate cellular functions and the cell's response to physiological and pathological stimuli. Organellar communication occurs at membrane contact sites (MCSs), where the endoplasmic reticulum (ER) membrane is tethered to cellular organelle membranes by specific tether proteins and where lipid transfer proteins and cell signaling proteins are located. MCSs have many cellular functions and are the sites of lipid and ion transfer between organelles and generation of second messengers. This review discusses several aspects of MCSs in the context of lipid transfer, formation of lipid domains, generation of Ca2+ and cAMP second messengers, and regulation of ion transporters by lipids. PMID- 29030481 TI - Antisense transcription represses Arabidopsis seed dormancy QTL DOG1 to regulate drought tolerance. AB - Plants have developed multiple strategies to sense the external environment and to adapt growth accordingly. Delay of germination 1 (DOG1) is a major quantitative trait locus (QTL) for seed dormancy strength in Arabidopsis thaliana that is reported to be expressed exclusively in seeds. DOG1 is extensively regulated, with an antisense transcript (asDOG1) suppressing its expression in seeds. Here, we show that asDOG1 shows high levels in mature plants where it suppresses DOG1 expression under standard growth conditions. Suppression is released by shutting down antisense transcription, which is induced by the plant hormone abscisic acid (ABA) and drought. Loss of asDOG1 results in constitutive high-level DOG1 expression, conferring increased drought tolerance, while inactivation of DOG1 causes enhanced drought sensitivity. The unexpected role of DOG1 in environmental adaptation of mature plants is separate from its function in seed dormancy regulation. The requirement of asDOG1 to respond to ABA and drought demonstrates that antisense transcription is important for sensing and responding to environmental changes in plants. PMID- 29030482 TI - Membrane scission driven by the PROPPIN Atg18. AB - Sorting, transport, and autophagic degradation of proteins in endosomes and lysosomes, as well as the division of these organelles, depend on scission of membrane-bound tubulo-vesicular carriers. How scission occurs is poorly understood, but family proteins bind these membranes. Here, we show that the yeast PROPPIN Atg18 carries membrane scission activity. Purified Atg18 drives tubulation and scission of giant unilamellar vesicles. Upon membrane contact, Atg18 folds its unstructured CD loop into an amphipathic alpha-helix that inserts into the bilayer. This allows the protein to engage its two lipid binding sites for PI3P and PI(3,5)P2 PI(3,5)P2 induces Atg18 oligomerization, which should concentrate lipid-inserted alpha-helices in the outer membrane leaflet and drive membrane tubulation and scission. The scission activity of Atg18 is compatible with its known roles in endo-lysosomal protein trafficking, autophagosome biogenesis, and vacuole fission. Key features required for membrane tubulation and scission by Atg18 are shared by other PROPPINs, suggesting that membrane scission may be a generic function of this protein family. PMID- 29030483 TI - RBPJ/CBF1 interacts with L3MBTL3/MBT1 to promote repression of Notch signaling via histone demethylase KDM1A/LSD1. AB - Notch signaling is an evolutionarily conserved signal transduction pathway that is essential for metazoan development. Upon ligand binding, the Notch intracellular domain (NOTCH ICD) translocates into the nucleus and forms a complex with the transcription factor RBPJ (also known as CBF1 or CSL) to activate expression of Notch target genes. In the absence of a Notch signal, RBPJ acts as a transcriptional repressor. Using a proteomic approach, we identified L3MBTL3 (also known as MBT1) as a novel RBPJ interactor. L3MBTL3 competes with NOTCH ICD for binding to RBPJ In the absence of NOTCH ICD, RBPJ recruits L3MBTL3 and the histone demethylase KDM1A (also known as LSD1) to the enhancers of Notch target genes, leading to H3K4me2 demethylation and to transcriptional repression. Importantly, in vivo analyses of the homologs of RBPJ and L3MBTL3 in Drosophila melanogaster and Caenorhabditis elegans demonstrate that the functional link between RBPJ and L3MBTL3 is evolutionarily conserved, thus identifying L3MBTL3 as a universal modulator of Notch signaling in metazoans. PMID- 29030484 TI - Aubergine and piRNAs promote germline stem cell self-renewal by repressing the proto-oncogene Cbl. AB - PIWI proteins play essential roles in germ cells and stem cell lineages. In Drosophila, Piwi is required in somatic niche cells and germline stem cells (GSCs) to support GSC self-renewal and differentiation. Whether and how other PIWI proteins are involved in GSC biology remains unknown. Here, we show that Aubergine (Aub), another PIWI protein, is intrinsically required in GSCs for their self-renewal and differentiation. Aub needs to be loaded with piRNAs to control GSC self-renewal and acts through direct mRNA regulation. We identify the Cbl proto-oncogene, a regulator of mammalian hematopoietic stem cells, as a novel GSC differentiation factor. Aub stimulates GSC self-renewal by repressing Cbl mRNA translation and does so in part through recruitment of the CCR4-NOT complex. This study reveals the role of piRNAs and PIWI proteins in controlling stem cell homeostasis via translational repression and highlights piRNAs as major post transcriptional regulators in key developmental decisions. PMID- 29030485 TI - Crosstalk between PKA and PKG controls pH-dependent host cell egress of Toxoplasma gondii. AB - Toxoplasma gondii encodes three protein kinase A catalytic (PKAc1-3) and one regulatory (PKAr) subunits to integrate cAMP-dependent signals. Here, we show that inactive PKAc1 is maintained at the parasite pellicle by interacting with acylated PKAr. Either a conditional knockdown of PKAr or the overexpression of PKAc1 blocks parasite division. Conversely, down-regulation of PKAc1 or stabilisation of a dominant-negative PKAr isoform that does not bind cAMP triggers premature parasite egress from infected cells followed by serial invasion attempts leading to host cell lysis. This untimely egress depends on host cell acidification. A phosphoproteome analysis suggested the interplay between cAMP and cGMP signalling as PKAc1 inactivation changes the phosphorylation profile of a putative cGMP-phosphodiesterase. Concordantly, inhibition of the cGMP-dependent protein kinase G (PKG) blocks egress induced by PKAc1 inactivation or environmental acidification, while a cGMP-phosphodiesterase inhibitor circumvents egress repression by PKAc1 or pH neutralisation. This indicates that pH and PKAc1 act as balancing regulators of cGMP metabolism to control egress. These results reveal a crosstalk between PKA and PKG pathways to govern egress in T. gondii. PMID- 29030487 TI - Macrophage-Specific Expression of IL-37 in Hyperlipidemic Mice Attenuates Atherosclerosis. AB - Atherosclerosis, the progressive buildup of plaque within arterial blood vessels, can lead to fatal downstream events, such as heart attack or stroke. A key event contributing to the development of atherosclerosis is the infiltration of monocytes and its associated inflammation, as well as the formation of lipid laden macrophage foam cells within the vessel wall. IL-37 is recognized as an important anti-inflammatory cytokine expressed especially by immune cells. This study was undertaken to elucidate the role of macrophage-expressed IL-37 in reducing the production and effects of proinflammatory cytokines, preventing foam cell formation, and reducing the development of atherosclerosis. Expression of human IL-37 was achieved with a macrophage-specific overexpression system, using the CD68 promoter in mouse primary bone marrow-derived macrophages via retroviral transduction. Macrophage IL-37 expression in vitro resulted in decreased mRNA (e.g., IL-1B, IL-6, and IL-12) and secreted protein production (e.g., IL-6, M CSF, and ICAM-1) of key inflammatory mediators. IL-37 expression also inhibited macrophage proliferation, apoptosis, and transmigration, as well as reduced lipid uptake, compared with controls in vitro. The in vivo effects of macrophage expressed IL-37 were investigated through bone marrow transplantation of transduced hematopoietic stem cells into irradiated atherosclerosis-prone Ldlr-/- mice. After 10 wk on a high-fat/high-cholesterol diet, mice with IL-37-expressing macrophages showed reduced disease pathogenesis, which was demonstrated by significantly less arterial plaque development and systemic inflammation compared with control mice. The athero-protective effect of macrophage-expressed IL-37 has implications for development of future therapies to treat atherosclerosis, as well as other chronic inflammatory diseases. PMID- 29030486 TI - Single-cell RNA sequencing reveals developmental heterogeneity among early lymphoid progenitors. AB - Single-cell RNA sequencing is a powerful technology for assessing heterogeneity within defined cell populations. Here, we describe the heterogeneity of a B220+CD117intCD19-NK1.1- uncommitted hematopoietic progenitor having combined lymphoid and myeloid potential. Phenotypic and functional assays revealed four subpopulations within the progenitor with distinct lineage developmental potentials. Among them, the Ly6D+SiglecH-CD11c- fraction was lymphoid-restricted exhibiting strong B-cell potential, whereas the Ly6D-SiglecH-CD11c- fraction showed mixed lympho-myeloid potential. Single-cell RNA sequencing of these subsets revealed that the latter population comprised a mixture of cells with distinct lymphoid and myeloid transcriptional signatures and identified a subgroup as the potential precursor of Ly6D+SiglecH-CD11c- Subsequent functional assays confirmed that B220+CD117intCD19-NK1.1- single cells are, with rare exceptions, not bipotent for lymphoid and myeloid lineages. A B-cell priming gradient was observed within the Ly6D+SiglecH-CD11c- subset and we propose a herein newly identified subgroup as the direct precursor of the first B-cell committed stage. Therefore, the apparent multipotency of B220+CD117intCD19-NK1.1- progenitors results from underlying heterogeneity at the single-cell level and highlights the validity of single-cell transcriptomics for resolving cellular heterogeneity and developmental relationships among hematopoietic progenitors. PMID- 29030488 TI - Long-Lived Innate IL-17-Producing gamma/delta T Cells Modulate Antimicrobial Epithelial Host Defense in the Colon. AB - Intestinal IL-17-producing cells, including Th17, gamma/delta T, and innate lymphoid cells, are differentially distributed along the gastrointestinal tract. In this study, we show that the gut IL-17-producing gamma/delta T (gamma/delta T17) cells develop before birth and persist in the tissue as long-lived cells with minimal turnover. Most colon gamma/delta T17 cells express, together with Vgamma4 and CCR6, the scavenger receptor 2 and are mainly restricted to innate lymphoid follicles in the colon. Colon gamma/delta T cells in mice that lack conventional dendritic cells 2 produced increased amounts of IL-17 with concomitant heightened epithelial antimicrobial response, such as the C-type lectins Reg3gamma and Reg3beta. In the absence of gamma/delta T cells or after IL 17 neutralization, this epithelial response was dramatically reduced, underlining the protective role of this unique subpopulation of innate gamma/delta T17 cells in the colonic mucosa. PMID- 29030490 TI - Early sex-dependent differences in response to environmental stress. AB - Developmental plasticity enables the appearance of long-term effects in offspring caused by exposure to environmental stressors during embryonic and foetal life. These long-term effects can be traced to pre- and post-implantation development, and in both cases, the effects are usually sex specific. During preimplantation development, male and female embryos exhibit an extensive transcriptional dimorphism mainly driven by incomplete X chromosome inactivation. These early developmental stages are crucial for the establishment of epigenetic marks that will be conserved throughout development, making it a particularly susceptible period for the appearance of long-term epigenetic-based phenotypes. Later in development, gonadal formation generates hormonal differences between the sexes, and male and female placentae exhibit different responses to environmental stressors. The maternal environment, including hormones and environmental insults during pregnancy, contributes to sex-specific placental development that controls genetic and epigenetic programming during foetal development, regulating sex specific differences, including sex-specific epigenetic responses to environmental hazards, leading to long-term effects. This review summarizes several human and animal studies examining sex-specific responses to environmental stressors during both the periconception period (caused by differences in sex chromosome dosage) and placental development (caused by both sex chromosomes and hormones). The identification of relevant sex-dependent trajectories caused by sex chromosomes and/or sex hormones is essential to define diagnostic markers and prevention/intervention protocols. PMID- 29030489 TI - Glyoxals as in vivo RNA structural probes of guanine base-pairing. AB - Elucidation of the folded structures that RNA forms in vivo is vital to understanding its functions. Chemical reagents that modify the Watson-Crick (WC) face of unprotected nucleobases are particularly useful in structure elucidation. Dimethyl sulfate penetrates cell membranes and informs on RNA base-pairing and secondary structure but only modifies the WC face of adenines and cytosines. We present glyoxal, methylglyoxal, and phenylglyoxal as potent in vivo reagents that target the WC face of guanines as well as cytosines and adenines. Tests on rice (Oryza sativa) 5.8S rRNA in vitro read out by reverse transcription and gel electrophoresis demonstrate specific modification of almost all guanines in a time- and pH-dependent manner. Subsequent in vivo tests on rice, a eukaryote, and Bacillus subtilis and Escherichia coli, Gram-positive and Gram-negative bacteria, respectively, showed that all three reagents enter living cells without prior membrane permeabilization or pH adjustment of the surrounding media and specifically modify solvent-exposed guanine, cytosine, and adenine residues. PMID- 29030491 TI - Autophagy is activated in the ovarian tissue of polycystic ovary syndrome. AB - The importance of autophagy in polycystic ovary syndrome (PCOS)-related metabolic disorders is increasingly being recognized, but few studies have investigated the role of autophagy in PCOS. Here, transmission electron microscopy demonstrated that autophagy was enhanced in the ovarian tissue from both humans and rats with PCOS. Consistent with this, ovarian granulosa cells from PCOS rats showed increases in the autophagy marker protein light chain 3B (LC3B), whereas levels of the autophagy substrate SQSTM1/p62 were decreased. In addition, the ratio of LC3-II/LC3-I was markedly elevated in human PCOS ovarian tissue compared with normal ovarian tissue. Real-time PCR arrays indicated that 7 and 34 autophagy related genes were down- and up-regulated in human PCOS , Signal-Net, and regression analysis suggested that there are a wide range of interactions among these 41 genes, and a potential network based on EGFR, ERBB2, FOXO1, MAPK1, NFKB1, IGF1,TP53 and MAPK9 may be responsible for autophagy activation in PCOS. Systematic functional analysis of 41 differential autophagy-related genes indicated that these genes are highly involved in specific cellular processes such as response to stress and stimulus, and are linked to four significant pathways, including the insulin, ERBB, mTOR signaling pathways and protein processing in the endoplasmic reticulum. This study provides evidence for a potential role of autophagy disorders in PCOS in which autophagy may be an important molecular event in the pathogenesis of PCOS. PMID- 29030492 TI - Comparative analysis of activins A and B in the adult mouse epididymis and vas deferens. AB - Activin A regulates testicular and epididymal development, but the role of activin B in the epididymis and vas deferens is unknown. Mouse models with reduced activin A (Inhba+/- and InhbaBK/+), or its complete absence (InhbaBK/BK), were investigated to identify specific roles of activins in the male reproductive tract. In 8-week-old Inhba+/- mice, serum activin A decreased by 70%, with a 50% reduction of gene expression and protein in the testis, epididymis and vas deferens. Activin B and the activin-binding protein, follistatin, were similar to wild-type. Testis weights were slightly reduced in Inhba+/- mice, but the epididymis and vas deferens were normal, while the mice were fertile. Activin A was decreased by 70% in the serum, testis, epididymis and vas deferens of InhbaBK/+ mice and was undetectable in InhbaBK/BK mice, but activin B and follistatin levels were similar to wild-type. In 6-week-old InhbaBK/BK mice, testis weights were 60% lower and epididymal weights were 50% lower than in either InhbaBK/+ or wild-type mice. The cauda epididymal epithelium showed infoldings and less intra-luminal sperm, similar to 3.5-week-old wild-type mice, but at 8 weeks, no structural differences in the testis or epididymis were noted between InhbaBK/BK and wild-type mice. Thus, Inhbb can compensate for Inhba in regulating epididymal morphology, although testis and epididymal maturation is delayed in mice lacking Inhba Crucially, reduction or absence of activin A, at least in the presence of normal activin B levels, does not lead to major defects in the adult epididymis or vas deferens. PMID- 29030493 TI - Intrinsic aerobic capacity governs the associations between gut microbiota composition and fat metabolism age-dependently in rat siblings. AB - Host genetic factors affecting the gut microbiome play an important role in obesity, yet limited attention has been paid on the host genetic factors linked to physical fitness in modifying the microbiome. This study determined whether sibling-matched pairs of rats selectively bred for high (HCR) and low (LCR) aerobic capacity differ in their microbiome age-dependently and which taxa associate with differential in metabolism. Several taxa in young adult rats (hereafter young) linked to inherited aerobic capacity, while in older adult (hereafter old) rats most of the differences between the lines associated with body weight. Despite the absence of weight differential between LCR and HCR when young, the LCR microbiome contained more Actinobacteria, Veillonellaceae, Coriobacteriaceae, Phascolarctobacterium, and Ruminococcus; taxa previously linked to obesity. This raises the question whether the microbiome contributes to the later development of obesity in LCR. Age-related differences were detected in almost all taxa in both rat lines. The young HCR measured higher for serum glycerol and free fatty-acids and lower for cholesterol, HDL, LDL, and triglycerides than LCR. The old HCR differed from the old LCR by lower LDL. Several metabolites, including LDL, are associated age and genetic background dependently with the microbiome, which might explain the metabolic differences between the lines. While old lines did not differ in visceral adipose tissue gene expression, the young HCR expressed more inflammatory genes than LCR, and several taxa including Proteobacteria associated with these genes. In conclusion, intrinsic aerobic capacity governs the microbiome, which may influence body weight, metabolism, and gene expression. PMID- 29030494 TI - Reassurance for many healthy women considering HRT. PMID- 29030495 TI - Intracavitary ultrasound (ICARUS): a neuroendoscopic adaptation of intravascular ultrasound for intracerebral hemorrhage evacuation. AB - Neurosurgeons performing intracerebral hemorrhage evacuation procedures have limited options for monitoring hematoma evacuation and assessing residual hematoma burden intraoperatively. Here, we report the successful neuroendoscopic adaptation of intravascular ultrasound, referred to here as intracavitary ultrasound (ICARUS), in two patients. Pre-evacuation ICARUS demonstrated dense hematomas in both patients. Post-evacuation ICARUS in patient 1 demonstrated significant reduction in clot burden and two focal hyperechoic regions consistent with pockets of hematoma not previously seen with the endoscope or burr hole ultrasound. These areas were directly targeted and resected with the endoscope and suction device. Post-evacuation ICARUS in patient 2 showed significant reduction of hematoma volume without indication of residual blood. ICARUS findings were confirmed on intraoperative DynaCT and postoperative CT 24 hours later. ICARUS is feasibly performed in a hematoma cavity both before and after hematoma aspiration. ICARUS may provide additional information to the operating surgeon and assist in maximizing hematoma removal. PMID- 29030496 TI - Ruptured aneurysm of the artery of Adamkiewicz: is conservative management the standard of treatment in the current era? AB - Spinal aneurysms are rare lesions, and their natural history is not well known. In particular, aneurysms arising from the artery of Adamkiewicz (AA) are an extremely rare phenomenon, and given the lack of solid evidence its management remains unclear. We present the case of a 54-year-old woman with spinal subarachnoid hemorrhage. A spinal angiogram demonstrated a fusiform aneurysm arising from the AA. Based on the location, the absence of evident collateral circulation to the anterior spinal artery, and the available literature supporting spontaneous thrombosis, we opted for conservative management. Fifteen days after the diagnosis, a spinal angiogram demonstrated complete occlusion of the aneurysm with no visualization of the AA. At 10-month follow-up, the patient was able to walk without assistance. Management should be done on a case-by-case basis with the goal of preserving spinal cord perfusion. Similar to previous articles, our report reinforces conservative management as a valid strategy. PMID- 29030497 TI - Flanking the fenestration: circumferential limb-to-limb stent-assisted coiling of a basilar artery fenestration aneurysm. AB - A man aged 61 years with a history of a ruptured basilar fenestration aneurysm underwent unassisted coiling in 1997 and repeat intervention for a recurrence at the aneurysm mouth in 2011. At repeat intervention, the decision was made to intentionally leave some filling at the base to preserve the parent vessels. Stent-assisted coil embolization, although technically feasible, was not pursued given the relative risks of the procedure. In 2017, the patient returned for repeat surveillance and further coil compaction was found at the aneurysm base. With the advent of more compliant woven stents deliverable through 0.017 microcatheters, stent-assisted coiling was possible. This case demonstrates hereto unseen agility afforded by novel low-profile stents allowing a circumferential approach to a basilar artery fenestration aneurysm and resultant limb-to-limb stent-assisted coiling. Techniques described here may be extended to more common anatomic variants that require stent-assisted coiling. PMID- 29030498 TI - Late recanalization of basilar artery occlusion in a previously healthy 17-month old child. AB - Endovascular treatment of acute ischemic stroke in children is increasingly being reported, although the time window for intervention is unclear. We describe a previously healthy 17-month-old child who presented with vertebral artery thrombosis and cerebellar stroke requiring posterior fossa decompression. She later progressed to basilar artery thrombosis treated with mechanical thrombectomy 50 hours after clinical decline. At 3 month follow-up, the patient had a modified Rankin Scale score of 0. PMID- 29030499 TI - Unexpected early radiographic findings associated with a ruptured blister-like carotid wall aneurysm. AB - A 33-year-old man presented with aneurysmal subarachnoid hemorrhage from a ruptured, blister-type sidewall internal carotid artery (ICA) aneurysm. Balloon assisted coiling was performed with residual neck. He subsequently developed severe vasospasm requiring intra-arterial therapies on multiple occasions, during which it was noted that despite widespread vasospasm, a focal segment of the ICA at the site of the aneurysm showed no significant spasm, suggesting underlying vessel abnormality. He was discharged without deficit and scheduled for flow diversion given concern over this potentially pathologic segment of vessel. At time of scheduled flow diversion 6 weeks later, a de novo unstable-appearing 6 mm stalk-like pseudoaneurysm was identified in this segment. Both aneurysms and the diseased vessel were successfully treated with Pipeline stenting, with excellent clinical and angiographic result. This case highlights the need for close angiographic follow-up when there is a heterogeneous vasospastic response in arterial segments adjacent to a ruptured aneurysm. PMID- 29030500 TI - Prolapsed antrochoanal polyp: an unusual cause of acute adult respiratory distress. AB - Here we describe an adult male who presented with acute dyspnoea and airway occlusion. Nasoendoscopy revealed a large antrochoanal polyp extending from his maxillary sinus to the level of the epiglottis. The patient underwent a successful semi-emergency polypectomy following initial stabilisation with medication. PMID- 29030501 TI - Enzymatic synthesis of core 2 O-glycans governs the tissue-trafficking potential of memory CD8+ T cells. AB - Trafficking of memory CD8+ T cells out of the circulation is essential to provide protective immunity against intracellular pathogens in nonlymphoid tissues. However, the molecular mechanisms that dictate the trafficking potential of diverse memory CD8+ T cell populations are not completely defined. We show that after infection or inflammatory challenge, central memory (TCM) CD8+ T cells rapidly traffic into nonlymphoid tissues, whereas most effector memory cells remain in the circulation. Furthermore, we demonstrate that cellular migration of memory CD8+ T cells into nonlymphoid tissues is driven by interleukin-15 (IL-15) stimulated enzymatic synthesis of core 2 O-glycans, which generates functional ligands for E- and P-selectins. Given that IL-15-stimulated expression of glycosyltransferase enzymes is largely a feature of TCM CD8+ T cells, this allows TCM to selectively migrate out of the circulation and into nonlymphoid tissues. Collectively, our data indicate that entry of memory CD8+ T cells into inflamed, nonlymphoid tissues is primarily restricted to TCM cells that have the capacity to synthesize core 2 O-glycans. PMID- 29030502 TI - Injury talk: spontaneous parent-child conversations in the aftermath of a potentially traumatic event. AB - BACKGROUND: While talking about traumatic experiences is considered central to psychological recovery, little is known about how these conversations occur in daily life. OBJECTIVE: We investigated spontaneous injury talk among parents and children in the aftermath of a child's hospitalisation due to physical trauma, and its relationship with children's socioemotional functioning. METHODS: In a prospective naturalistic observation study, we audio-sampled the daily life of 71 families with the Electronically Activated Recorder after their child (3-16 years old) was discharged from hospital. We collected close to 20 000 snippets of audio information, which were double-coded for conversation characteristics, and measured children's socioemotional functioning with the Strengths and Difficulties Questionnaire (SDQ) at 6 weeks and 3 months postinjury. FINDINGS: The children were involved in injury talk for, on average, 46 min/day, 9 min of which referred to emotions. Children had significantly more injury conversations with their mothers than with their fathers. The tone of injury conversations was significantly more positive than that of non-injury conversations. More direct injury talk was associated with fewer problems on the emotion subscale of the SDQ at 3 months. Other associations between aspects of injury talk and children's socioemotional functioning were mostly non-significant, although they appeared to be stronger at 3 months than at 6 weeks. CONCLUSIONS: Families spontaneously talked about the injury and associated issues for about the same amount of time per day as a therapist might within a session (a 'therapy hour'). CLINICAL IMPLICATIONS: Making full use of naturally occurring injury talk may be a valuable direction for parent and family-focused postinjury interventions. However, the study design prevents causal inference, and further exploration is warranted. PMID- 29030503 TI - A qualitative study of a blended therapy using problem solving therapy with a customised smartphone app in men who present to hospital with intentional self harm. AB - BACKGROUND: Blended therapy describes the use of computerised therapy combined with face-to-face therapy to extend the depth, range and nature of the face-to face therapy. We wanted to develop a treatment manual for a randomised trial of blended therapy combining face-to-face problem solving and a smartphone app in men who present to hospital with self-harm. OBJECTIVE: To develop a treatment manual and to describe the experience of receiving and delivering a blended therapy. METHODS: After completion of the blended therapy, semistructured qualitative interviews were conducted with participants to describe their experience of the treatment. Two independent coders analysed the material using a thematic, grounded theory approach. FINDINGS: Seven men were enrolled in the study, and six completed the qualitative interviews. The two main themes identified were of trust and connection. Participants attended 85% of their appointments. CONCLUSIONS: In the treatment manual, we emphasised the themes of trust and connection by allowing time to discuss the app in the face-to-face to sessions, ensuring that therapists are familiar with the app and know how to respond to technical queries. Identification of trust and connection generates novel questions about the importance of the therapeutic alliance with technology rather than with people. CLINICAL IMPLICATIONS: Clinicians and app developers need to pay attention to the therapeutic relationship with technology as trust and good communication can be easily damaged, resulting in disengagement with the app. Blended therapy may result in increased adherence to face-to-face sessions. TRIAL REGISTRATION NUMBER: NCT02718248. PMID- 29030504 TI - SAC C VS disease surveillance, June 2017. AB - Shortened limbs in pedigree Aberdeen Angus calvesSpinal listeriosis in a suckled calfTickborne fever in lambsAeromonas hydrophila pleuropneumonia in finishing pigsThese are among matters discussed in the disease surveillance report for June 2017 from SAC Consulting: Veterinary Services (SAC C VS). PMID- 29030505 TI - Infectious bovine rhinotracheitis in Scotland. AB - A cattle dashboard has recently been developed to share surveillance information gathered from submissions to the Great Britain veterinary diagnostic network. Data relating to Scotland come from the SAC C VS. This article, by Tim Geraghty, relates to cases of infectious bovine rhinotracheitis in Scotland, as summarised on the APHA Cattle Dashboard. PMID- 29030506 TI - Tackling brachycephaly head on. PMID- 29030509 TI - Aggressive or threatening behaviour a 'weekly occurrence' for vets in practice. PMID- 29030508 TI - Raw feeding of pets: safe and nutritious - or reckless and irresponsible? PMID- 29030510 TI - Demand for pets creates online pet sales epidemic. PMID- 29030511 TI - Meet El Rey Magnum. PMID- 29030512 TI - Gove announces plans to ban sale of ivory. PMID- 29030513 TI - Clinicians' attitudes to pain and the use of analgesia in cattle. PMID- 29030514 TI - Labelling of meat from non-stun slaughtered animals. PMID- 29030515 TI - Benchmarking antimicrobial use. PMID- 29030516 TI - Labelling of meat from non-stun slaughtered animals. PMID- 29030522 TI - Understanding and managing arthritis. AB - No-one is more surprised than Hannah Capon at her decision to leave clinical practice to help arthritic dogs. This is how it happened. PMID- 29030517 TI - Michael Alan Wright. AB - Michael Wright was a respected vet who had great pride in his profession. PMID- 29030523 TI - Rosie's diary. AB - Every month, Vet Record Careers checks in with fourth-year vet student Rosie Perrett. PMID- 29030524 TI - TodaysBaby Quality Improvement: Safe Sleep Teaching and Role Modeling in 8 US Maternity Units. AB - BACKGROUND AND OBJECTIVES: Nursing education and role modeling can increase adherence to safe sleep practices. Eight US hospital maternity units with variable baseline approaches to education participated in a national multicenter nursing quality improvement (QI) intervention to promote safe sleep practices. The goals at participating maternity units were to (1) increase the rate of mothers who reported receiving safe sleep information from nurses to >=90% and (2) increase the rates of infants observed sleeping supine in a safe environment to >=90%. METHODS: A safe sleep QI toolkit, designed for and provided to all sites, included an educational curriculum and tools to use for staff and parent education. Local teams implemented safe sleep education using the tools as plan do-study-act cycles. After each cycle, audits assessing maternal report of nursing education on safe sleep and inpatient infant sleep position and environment were performed. RESULTS: The QI interventions lasted a median of 160 days (range, 101-273). Mothers reported receiving information on 4 primary safe sleep topics 72% to 95% of the time (a 24%-57% increase over the baseline). Additionally, 93% of infants were observed in a supine sleep position, and 88% of infants were observed in a safe sleep environment (a 24% and 33% increase over baseline, respectively). These rates were sustained up to 12 months later. CONCLUSIONS: Implementation of a multisite QI intervention for safe sleep parenting education and role modeling led to increased knowledge of and compliance with safe sleep practices during postpartum hospitalization. PMID- 29030526 TI - Guidelines for Risk-Based Changeover of Biopharma Multi-Product Facilities. AB - In multi-product biopharma facilities, the protection from product contamination due to the manufacture of multiple products simultaneously is paramount to assure product quality. To that end, the use of traditional changeover methods (elastomer change-out, full sampling, etc.) have been widely used within the industry and have been accepted by regulatory agencies. However, with the endorsement of Quality Risk Management (1), the use of risk-based approaches may be applied to assess and continuously improve established changeover processes. All processes, including changeover, can be improved with investment (money/resources), parallel activities, equipment design improvements, and standardization. However, processes can also be improved by eliminating waste. For product changeover, waste is any activity not needed for the new process or that does not provide added assurance of the quality of the subsequent product. The application of a risk-based approach to changeover aligns with the principles of Quality Risk Management. Through the use of risk assessments, the appropriate changeover controls can be identified and controlled to assure product quality is maintained. Likewise, the use of risk assessments and risk-based approaches may be used to improve operational efficiency, reduce waste, and permit concurrent manufacturing of products. PMID- 29030527 TI - Holistic Considerations in Optimizing a Sterile Product Package to Ensure Container Closure Integrity. AB - A new major chapter dealing with container closure integrity was released by the United States Pharmacopeial Convention. Chapter <1207> provides a significant amount of education and guidance concerning test methodologies to prove that a system is integral and safe for use. The test method used is only one of the major considerations in approaching the challenge of proving an integral system. This paper takes a holistic review of all the major considerations needed in qualifying a new vial system for container closure integrity. There is substantial interplay among many aspects in the process of sealing a vial. This review helps to define major risks that need to be considered and mitigated and reinforces the need to understand the maximum allowable leakage limit that is acceptable for a specific drug application. A typical risk-based approach considers materials, test methods, process, people, environment, and equipment. Each of these aspects is considered in some detail along with a recommended process flow for building a best practice, science-based approach. This approach will inform decision making for evaluating the correct combination of components and assuring they are assembled and tested in an appropriate manner. This work, once completed, can be the basis for a vial system platform or specific drug application qualification.LAY ABSTRACT: Container closure integrity is a fundamental requirement of every sterile drug package. With recent upgrading of compendia standards and guidance around this issue, there is an opportunity to better define a best practice approach to a complicated subject. It is important to recognize that there is substantial interplay among the components of the system, the process of assembly, and the test methods that are used. This paper takes a holistic approach to discussing these issues and identifying the risks that must be considered in assuring an integral container over the shelf life of a drug product. PMID- 29030525 TI - Neurodevelopment at Age 10 Years of Children Born <28 Weeks With Fetal Growth Restriction. AB - OBJECTIVES: We sought to evaluate the relationships between fetal growth restriction (FGR) (both severe and less severe) and assessments of cognitive, academic, and adaptive behavior brain function at age 10 years. METHODS: At age 10 years, the Extremely Low Gestational Age Newborns Cohort Study assessed the cognitive function, academic achievement, social-communicative function, psychiatric symptoms, and overall quality of life of 889 children born before 28 weeks' gestation. A pediatric epileptologist also interviewed parents as part of a seizure evaluation. The 52 children whose birth weight z scores were <-2 were classified as having severe FGR, and the 113 whose birth weight z scores were between -2 and -1 were considered to have less severe FGR. RESULTS: The more severe the growth restriction in utero, the lower the level of function on multiple cognitive and academic achievement assessments performed at age 10 years. Growth-restricted children were also more likely than their extremely preterm peers to have social awareness impairments, autistic mannerisms, autism spectrum diagnoses, difficulty with semantics and speech coherence, and diminished social and psychosocial functioning. They also more frequently had phobias, obsessions, and compulsions (according to teacher, but not parent, report). CONCLUSIONS: Among children born extremely preterm, those with severe FGR appear to be at increased risk of multiple cognitive and behavioral dysfunctions at age 10 years, raising the possibility that whatever adversely affected their intrauterine growth also adversely affected multiple domains of cognitive and neurobehavioral development. PMID- 29030528 TI - Real-Time PCR Detection of Burkholderia cepacia in Pharmaceutical Products Contaminated with Low Levels of Bacterial Contamination. AB - A real-time polymerase chain reaction (RT-PCR) assay was developed to detect Burkholderia cepacia in pharmaceutical products contaminated with low levels of bacteria. Different pharmaceutical suspensions were artificially contaminated with B. cepacia, Escherichia coli, Staphylococcus aureus, and Bacillus megaterium After a 24 h incubation in trypticase soy broth with Tween 20, samples were streaked on mannitol salt, phenyl ethyl alcohol, eosin methylene blue, MacConkey, and pseudomonas isolation agar. Microbial DNA was extracted from each sample by using a Tris-EDTA, proteinase K, Tween 20 buffer. Regular PCR targeting the 1.5 kilobases 16S rRNA eubacterial gene and cloning showed the predominant DNA in the extracted mix belonged to E. coli Selective media isolation of bacterial contamination showed B. cepacia only detected on pseudomonas isolation while eosin methylene blue and MacConkey detected only E. coli RT-PCR using primers PSL1 and PSR1 amplified a 209 bp 16S rRNA fragment using a Roche LightCycler 96(r) system with SYBR green I, a common double-stranded binding dye. The cycle at which fluorescence from amplification exceeds the background fluorescence was referred to as quantification cycle. All samples were found to be positive by standard microbiological testing and RT-PCR. B. cepacia was detected within 30 h in all contaminated samples using RT-PCR. Based upon standard curve analysis of B. cepacia DNA, the minimum DNA concentration that could be detected was 10 fg/uL with a correlation value of 0.98. RT-PCR detection of B. cepacia allowed faster quality control analysis, corrective actions, and process optimization.LAY ABSTRACT: A real-time polymerase chain reaction (RT-PCR) assay was developed to detect Burkholderia cepacia in pharmaceutical products contaminated with low levels of bacteria. B. cepacia is the number one reason for microbial contamination recalls of non-sterile drug products in the USA. RT-PCR using primers PSL1 and PSR1 amplified a 209 bp 16S rRNA fragment using a Roche LightCycler 96(r) system with SYBR green I, a common double-stranded binding dye. All samples were found to be positive by standard microbiological testing and RT PCR. B. cepacia was detected within 30 h in all contaminated samples using RT PCR. RT-PCR detection of B. cepacia allowed faster quality control analysis, corrective actions, and process optimization. PMID- 29030529 TI - Microbiological Test Data-Assuring Data Integrity. AB - Marketed drugs and devices possess specifications including critical microbiological quality attributes purposed to assure efficacy and patient safety. These attributes are legislated requirements intended to protect the recipient patient. Sampling, microbiological testing, interpretation of data for final products, raw materials, and intermediates all contribute to a cohesive assessment in the assurance of finished product quality. Traditional culture based microbiological methods possess inherent and unavoidable variability, recognized by the compendia and which might lead to erroneous conclusion pertaining to product quality. Such variability has been associated and intrinsically linked with data integrity issues; manufacturers have subsequently been encouraged by regulatory authorities to introduce multiple microbiologists or checks to prevent such issues. Understanding microbiological variability is essential such that genuine data integrity issues are identified. Furthermore, a range of meaningful preventative strategies are feasible beyond increasing the capacity of the quality control microbiological laboratory. This short review describes the legislative requirements, inherent microbiological variability, and realistic actions and activities that genuinely assure patient safety.LAY ABSTRACT: Marketed drugs and devices possess specifications including critical microbiological quality attributes purposed to assure efficacy and patient safety. These attributes are legislated requirements intended to protect the recipient patient. Sampling, microbiological testing, interpretation of data for final products, raw materials, and intermediates all contribute to a cohesive assessment in the assurance of finished product quality. Traditional culture based microbiological methods possess inherent and unavoidable variability, recognized by the compendia and which might lead to erroneous conclusion pertaining to product quality. Such variability has been associated and intrinsically linked with data integrity issues; manufacturers have subsequently been encouraged by regulatory authorities to introduce multiple microbiologists or checks to prevent such issues. Understanding microbiological variability is essential such that genuine data integrity issues are identified. Furthermore, a range of meaningful preventative strategies are feasible beyond increasing the capacity of the quality control microbiological laboratory. This short review describes the legislative requirements, inherent microbiological variability, and realistic actions and activities that genuinely assure patient safety. PMID- 29030530 TI - Quality of Medicines in Portugal: A Retrospective Review of Medicine Recalls (2000-2015). AB - INFARMED, the Portuguese national health authority, alerts the general public and health care professionals about quality or safety issues detected in health products. The present study analyses recalls of substandard medicines in Portugal between 2005 and 2015. All 338 alerts for medicine recalls were analysed, which represents a total of 378 drugs withdrawn. Despite the fact that the total number of medicine alerts has increased during the past decade, the number of actual medicine recalls remained relatively constant. The number of batches affected in each recall varies from only one to several batches. In addition, 294 of the alerts are related to voluntary recalls, that is, those initiated by the marketing authorisation holder, whereas only 40 were mandatory recalls. There are marketing authorisation holders that have had several medicine recalls over the period studied. The main cause of product recall was the pharmaceutical dosage form, followed by packaging problems. Forty-two percent of the withdrawn medicines are from solid oral forms, a value slightly higher than that obtained for the injectables group. Finally, substandard medicines have been accessible in the Portuguese market for a period that varied between one month and over four years. The data seem to show that the number of substandard medicines in Portugal has not been increasing. However, this may be due to a variety of causes, that is, better performance of the industry, non-detection of these cases, and so on.LAY ABSTRACT: INFARMED, the Portuguese national health authority, alerts the general public and health care professionals about quality or safety issues detected in health products. The present study analyses market recalls of substandard medicines in Portugal between 2005 and 2015. All 338 alerts for medicine recalls were analysed, which represents a total of 378 drugs withdrawn. Despite the fact that the total number of medicine alerts has increased during the past decade, the number of actual medicine recalls has remained relatively constant. In addition, 294 of the alerts are related to voluntary recalls, that is, initiated by the marketing authorisation holder, whereas only 40 were mandatory recalls. There are marketing authorisation holders that have had several medicine recalls over the period studied. It was also found that substandard medicines have been accessible in the Portuguese market for a period that varied between 1 month and over 4 years. The data seem to show that the number of substandard medicines in Portugal has not been increasing. However, this may be due to a variety of causes, that is, better performance of the industry, non-detection of these cases, and so on. PMID- 29030531 TI - Impact of Drug Formulation Variables on Silicone Oil Structure and Functionality of Prefilled Syringe System. AB - Use of prefilled syringes to self-administer biologics via subcutaneous administration provides convenience to patients. The barrel interior of prefilled syringes is typically coated with silicone oil for lubrication to aid plunger movement at the time of administration. This study intended to evaluate the impact of formulation variables on the silicone oil on the barrel interior surface. Characterization techniques including syringe glide force, break loose force, Schlieren imaging, contact angle, inductively coupled plasma spectrometry, and thin film interference reflectometry were used in assessing the interactions. Data indicated that formulation variables such as pH, buffer/tonicity agent type and concentration, and surfactant present in the formulation can effect silicone oil lubrication of prefilled syringes, leading to changes in functional properties of the syringe over time. Syringe samples containing acetate and histidine buffers showed an increase in glide force at accelerated storage temperature conditions, but the change was minimal at 5 degrees C. The samples with the highest glide force correlated with the presence of mannitol in combination with sodium acetate buffer. Sodium chloride had lesser impact on glide force than mannitol. Samples with higher glide force exhibited a substantial change in the silicone oil layer of the syringe, as observed with Schlieren imaging, as well as a significant reduction in surface hydrophobicity, as demonstrated through contact angle measurement. These data indicated that the structure of the siliconized surface can change over time in contact with different formulations. During formulation development of drug products in prefilled syringes, in addition to potential impact on molecule stability, the selection of formulation variables should also be guided by assessing the impact to syringe functionality with the glide force as one of the key parameters.LAY ABSTRACT: Self-administering drug products packaged in prefilled syringes provides convenience to patients. The interior of a prefilled glass syringe is typically lubricated with silicone oil for easy plunger movement during injection. This article discusses the impact of formulation excipients on silicone oil coating inside the syringe. Characterization techniques were used to assess the ease of plunger movement and structure of the silicone coating. Data indicate formulation excipients can affect silicone oil distribution of prefilled syringes, leading to an increase in plunger glide force at accelerated storage temperature conditions. The increase in glide force within a prefilled syringe with or without an auto-injector can have an impact on dose accuracy and user experience. Syringes with a higher plunger glide force appeared to exhibit a change over time in surface energy and structure of the silicone oil layer in contact with particular formulations. PMID- 29030532 TI - Mechanistic Investigation on Grinding-Induced Subvisible Particle Formation during Mixing and Filling of Monoclonal Antibody Formulations. AB - Processing equipment involving grinding of two solid surfaces has been demonstrated to induce subvisible particle formation in monoclonal antibody drug product manufacturing processes. This study elucidated potential stress types associated with grinding action to identify the stress mechanism responsible for subvisible particle formation. Several potential stress types can be associated with the grinding action, including interfacial stresses (air-liquid and liquid solid), hydraulic/mechanical shear stress, cavitation, nucleation of stressed protein molecules, and localized thermal stress. More than one stress type can synergically affect monoclonal antibody product quality, making it challenging to determine the primary mode of stress. Our strategy was to assess and rule out some stress types through platform knowledge, rational judgments, or via small scale models, for example, rheometer/rotator-stator homogenizer for hydraulic/mechanical shear stress, sonicator for cavitation, etc. These models may not provide direct evidence but can offer rational correlations. Cavitation, as demonstrated by sonication, proved to be quite detrimental to monoclonal antibody molecules in forming not just subvisible particles but also soluble high molecular-weight species as well as low-molecular-weight species. This outcome was not consistent with that of grinding monoclonal antibodies between the impeller and the drive unit of a bottom-mounted mixer or between the piston and the housing of a rotary piston pump, both of which formed only subvisible particles without obvious high-molecular-weight species and low-molecular-weight species. In addition, a p-nitrophenol model suggested that cavitation in the bottom-mounted mixer is barely detectable. We attributed the grinding-induced, localized thermal effect to be the primary stress to subvisible particle formation based on a high-temperature, spray-drying model. The heat effect of spray drying also caused subvisible particles, in the absence of significant high molecular-weight species and low-molecular-weight species, in spray-dried monoclonal antibody powders. This investigation provides a mechanistic understanding of the underlying stress mechanism leading to monoclonal antibody subvisible particle formation as the result of drug product processing involving grinding of solid surfaces.LAY ABSTRACT: Subvisible particles present in therapeutic protein formulations could adversely affect drug product safety and efficacy. We previously illustrated that grinding action of the solid surfaces in some bottom-mounted mixers and piston pump is responsible for subvisible particle formation of monoclonal antibody formulations. In this study, we delved into mechanistic understanding of the stress types associated with solid surface grinding. The approach was to employ several scale-down stress models with known stress types. Protein formulations stressed in these models were analytically characterized for subvisible particles and other degradants. Some commonly known stress types-such as air-liquid interface, mechanical stress, cavitation, nucleation, and thermal effect-were assessed in this study. The stress model yielding a degradation profile matching that of bottom-mounted mixers and piston pump warranted further assessment. Localized, thermal stress proved to be the most feasible mechanism. This study, along with previously published results, may further advance our understanding of these particular drug product manufacturing processes and benefit scientists and engineers in overcoming these development challenges. PMID- 29030533 TI - Progress towards TB reduction targets is faltering, report finds. PMID- 29030534 TI - Herpes Simplex Virus 1, Macrophages, and the Cornea. PMID- 29030536 TI - Classic Spotlight, 2008 and 2009: Articles of Significant Interest Selected from the Journal of Virology Archives by the Editors. PMID- 29030535 TI - Reply to "Herpes Simplex Virus 1, Macrophages, and the Cornea". PMID- 29030537 TI - ATP/ADP turnover and import of glycolytic ATP into mitochondria in cancer cells is independent of the adenine nucleotide translocator. PMID- 29030538 TI - Proteasomes beyond proteolysis: Roles in heterochromatin maintenance. AB - In addition to its proteolytic roles, the 26S proteasome is involved in regulating transcription and in promoting sites of active chromatin. In this report, Seo et al. provide evidence that the non-proteolytic 19S subunit of the 26S proteasome also regulates the spreading of inactive chromatin referred to as heterochromatin, suggesting further non-canonical roles of the proteasome in gene expression. PMID- 29030539 TI - The Herbert Tabor Best Paper Awards: Celebrating young authors who contribute top content to JBC. PMID- 29030540 TI - Hypoxia-Induced Activation of JAK/STAT3 Signaling Pathway Promotes Trophoblast Cell Viability and Angiogenesis in Preeclampsia. AB - BACKGROUND To explore the effect of hypoxic preconditioning on the JAK/STAT3 signaling pathway and its effect on trophoblast cell viability and angiogenesis in preeclampsia (PE). MATERIAL AND METHODS Placental tissues from normal pregnant women and PE patients were collected to detect the expression levels of JAK and STAT3. Trophoblast cells separated from the PE patients were assigned to 4 groups. The expression levels of phosphorylated p-JAK and p-STAT3 were measured by Western blot. Cell viability, colony-forming ability, and cell apoptosis were assessed. The levels of vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), and hepatocyte growth factor (HGF) were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS The expression levels of JAK and STAT3 were higher in the placental tissues of PE patients than in those of normal pregnant women. Compared with the blank group, in the hypoxia group the expression levels of p-JAK and p-STAT3 were increased, cell viability was promoted, the number of colonies was increased, cell apoptosis was inhibited, and the levels of VEGF, bFGF, and HGF were all elevated. However, in comparison with the hypoxia group, the expression levels of p-JAK and p-STAT3 were reduced, the cell viability was inhibited, the colonies were decreased, the levels of VEGF, bFGF, and HGF were all decreased, and cell apoptosis was promoted in the hypoxia + si-JAK group. CONCLUSIONS These findings indicate that hypoxic preconditioning may contribute to activation of the JAK/STAT3 signaling pathway, thus promoting trophoblast cell viability and angiogenesis in PE. PMID- 29030541 TI - Inference of RNA decay rate from transcriptional profiling highlights the regulatory programs of Alzheimer's disease. AB - The abundance of mRNA is mainly determined by the rates of RNA transcription and decay. Here, we present a method for unbiased estimation of differential mRNA decay rate from RNA-sequencing data by modeling the kinetics of mRNA metabolism. We show that in all primary human tissues tested, and particularly in the central nervous system, many pathways are regulated at the mRNA stability level. We present a parsimonious regulatory model consisting of two RNA-binding proteins and four microRNAs that modulate the mRNA stability landscape of the brain, which suggests a new link between RBFOX proteins and Alzheimer's disease. We show that downregulation of RBFOX1 leads to destabilization of mRNAs encoding for synaptic transmission proteins, which may contribute to the loss of synaptic function in Alzheimer's disease. RBFOX1 downregulation is more likely to occur in older and female individuals, consistent with the association of Alzheimer's disease with age and gender."mRNA abundance is determined by the rates of transcription and decay. Here, the authors propose a method for estimating the rate of differential mRNA decay from RNA-seq data and model mRNA stability in the brain, suggesting a link between mRNA stability and Alzheimer's disease." PMID- 29030542 TI - Observation of spin-orbit effects with spin rotation symmetry. AB - The spin-orbit interaction enables interconversion between a charge current and a spin current. It is usually believed that in a nonmagnetic metal (NM) or at a NM/ferromagnetic metal (FM) bilayer interface, the symmetry of spin-orbit effects requires that the spin current, charge current, and spin orientation are all orthogonal to each other. Here we demonstrate the presence of spin-orbit effects near the NM/FM interface that exhibit a very different symmetry, hereafter referred to as spin-rotation symmetry, from the conventional spin Hall effect while the spin polarization is rotating about the magnetization. These results imply that a perpendicularly polarized spin current can be generated with an in plane charge current simply by use of a FM/NM bilayer with magnetization collinear to the charge current. The ability to generate a spin current with arbitrary polarization using typical magnetic materials will benefit the development of magnetic memories.Converting charge to spin currents using spin orbit interactions has useful applications in spintronics but symmetry constraints can limit the control over spin polarization. Here the authors demonstrate spin-orbit effects with a different symmetry, which could help generate arbitrary spin polarizations. PMID- 29030543 TI - Counteracting structural errors in ensemble forecast of influenza outbreaks. AB - For influenza forecasts generated using dynamical models, forecast inaccuracy is partly attributable to the nonlinear growth of error. As a consequence, quantification of the nonlinear error structure in current forecast models is needed so that this growth can be corrected and forecast skill improved. Here, we inspect the error growth of a compartmental influenza model and find that a robust error structure arises naturally from the nonlinear model dynamics. By counteracting these structural errors, diagnosed using error breeding, we develop a new forecast approach that combines dynamical error correction and statistical filtering techniques. In retrospective forecasts of historical influenza outbreaks for 95 US cities from 2003 to 2014, overall forecast accuracy for outbreak peak timing, peak intensity and attack rate, are substantially improved for predicted lead times up to 10 weeks. This error growth correction method can be generalized to improve the forecast accuracy of other infectious disease dynamical models.Inaccuracy of influenza forecasts based on dynamical models is partly due to nonlinear error growth. Here the authors address the error structure of a compartmental influenza model, and develop a new improved forecast approach combining dynamical error correction and statistical filtering techniques. PMID- 29030544 TI - Experimental certification of millions of genuinely entangled atoms in a solid. AB - Quantum theory predicts that entanglement can also persist in macroscopic physical systems, albeit difficulties to demonstrate it experimentally remain. Recently, significant progress has been achieved and genuine entanglement between up to 2900 atoms was reported. Here, we demonstrate 16 million genuinely entangled atoms in a solid-state quantum memory prepared by the heralded absorption of a single photon. We develop an entanglement witness for quantifying the number of genuinely entangled particles based on the collective effect of directed emission combined with the non-classical nature of the emitted light. The method is applicable to a wide range of physical systems and is effective even in situations with significant losses. Our results clarify the role of multipartite entanglement in ensemble-based quantum memories and demonstrate the accessibility to certain classes of multipartite entanglement with limited experimental control.The presence of entanglement in macroscopic systems is notoriously difficult to observe. Here, the authors develop a witness which allow them to demonstrate entanglement between millions of atoms in a solid-state quantum memory prepared by the heralded absorption of a single photon. PMID- 29030546 TI - Spontaneous jumping, bouncing and trampolining of hydrogel drops on a heated plate. AB - The contact between liquid drops and hot solid surfaces is of practical importance for industrial processes, such as thermal spraying and spray cooling. The contact and bouncing of solid spheres is also an important event encountered in ball milling, powder processing, and everyday activities, such as ball sports. Using high speed video microscopy, we demonstrate that hydrogel drops, initially at rest on a surface, spontaneously jump upon rapid heating and continue to bounce with increasing amplitudes. Jumping is governed by the surface wettability, surface temperature, hydrogel elasticity, and adhesion. A combination of low-adhesion impact behavior and fast water vapor formation supports continuous bouncing and trampolining. Our results illustrate how the interplay between solid and liquid characteristics of hydrogels results in intriguing dynamics, as reflected by spontaneous jumping, bouncing, trampolining, and extremely short contact times.Drops of liquid on a hot surface can exhibit fascinating behaviour such as the Leidenfrost effect in which drops hover on a vapour layer. Here Pham et al. show that when hydrogel drops are placed on a rapidly heated plate they bounce to increasing heights even if they were initially at rest. PMID- 29030545 TI - Fructose-1,6-bisphosphate couples glycolytic flux to activation of Ras. AB - Yeast and cancer cells share the unusual characteristic of favoring fermentation of sugar over respiration. We now reveal an evolutionary conserved mechanism linking fermentation to activation of Ras, a major regulator of cell proliferation in yeast and mammalian cells, and prime proto-oncogene product. A yeast mutant (tps1?) with overactive influx of glucose into glycolysis and hyperaccumulation of Fru1,6bisP, shows hyperactivation of Ras, which causes its glucose growth defect by triggering apoptosis. Fru1,6bisP is a potent activator of Ras in permeabilized yeast cells, likely acting through Cdc25. As in yeast, glucose triggers activation of Ras and its downstream targets MEK and ERK in mammalian cells. Biolayer interferometry measurements show that physiological concentrations of Fru1,6bisP stimulate dissociation of the pure Sos1/H-Ras complex. Thermal shift assay confirms direct binding to Sos1, the mammalian ortholog of Cdc25. Our results suggest that the Warburg effect creates a vicious cycle through Fru1,6bisP activation of Ras, by which enhanced fermentation stimulates oncogenic potency.Yeast and cancer cells both favor sugar fermentation in aerobic conditions. Here the authors describe a conserved mechanism from yeast to mammals where the glycolysis intermediate fructose-1,6-bisphosphate binds Cdc25/Sos1 and couples increased glycolytic flux to increased Ras proto oncoprotein activity. PMID- 29030547 TI - The Hidden Flow Structure and Metric Space of Network Embedding Algorithms Based on Random Walks. AB - Network embedding which encodes all vertices in a network as a set of numerical vectors in accordance with it's local and global structures, has drawn widespread attention. Network embedding not only learns significant features of a network, such as the clustering and linking prediction but also learns the latent vector representation of the nodes which provides theoretical support for a variety of applications, such as visualization, link prediction, node classification, and recommendation. As the latest progress of the research, several algorithms based on random walks have been devised. Although those algorithms have drawn much attention for their high scores in learning efficiency and accuracy, there is still a lack of theoretical explanation, and the transparency of those algorithms has been doubted. Here, we propose an approach based on the open-flow network model to reveal the underlying flow structure and its hidden metric space of different random walk strategies on networks. We show that the essence of embedding based on random walks is the latent metric structure defined on the open-flow network. This not only deepens our understanding of random- walk-based embedding algorithms but also helps in finding new potential applications in network embedding. PMID- 29030548 TI - Evidence of indirect gap in monolayer WSe2. AB - Monolayer transition metal dichalcogenides, such as MoS2 and WSe2, have been known as direct gap semiconductors and emerged as new optically active materials for novel device applications. Here we reexamine their direct gap properties by investigating the strain effects on the photoluminescence of monolayer MoS2 and WSe2. Instead of applying stress, we investigate the strain effects by imaging the direct exciton populations in monolayer WSe2-MoS2 and MoSe2-WSe2 lateral heterojunctions with inherent strain inhomogeneity. We find that unstrained monolayer WSe2 is actually an indirect gap material, as manifested in the observed photoluminescence intensity-energy correlation, from which the difference between the direct and indirect optical gaps can be extracted by analyzing the exciton thermal populations. Our findings combined with the estimated exciton binding energy further indicate that monolayer WSe2 exhibits an indirect quasiparticle gap, which has to be reconsidered in further studies for its fundamental properties and device applications.Monolayer transition metal dichalcogenides have so far been thought to be direct bandgap semiconductors. Here, the authors revisit this assumption and find that unstrained monolayer WSe2 is an indirect-gap material, as evidenced by the observed photoluminescence intensity-energy correlation. PMID- 29030549 TI - Evidence of local and regional freshening of Northeast Greenland coastal waters. AB - The supply of freshwater to fjord systems in Greenland is increasing as a result of climate change-induced acceleration in ice sheet melt. However, insight into the marine implications of the melt water is impaired by lack of observations demonstrating the fate of freshwater along the Greenland coast and providing evaluation basis for ocean models. Here we present 13 years of summer measurements along a 120 km transect in Young Sound, Northeast Greenland and show that sub-surface coastal waters are decreasing in salinity with an average rate of 0.12 +/- 0.05 per year. This is the first observational evidence of a significant freshening on decadal scale of the waters surrounding the ice sheet and comes from a region where ice sheet melt has been less significant. It implies that ice sheet dynamics in Northeast Greenland could be of key importance as freshwater is retained in southward flowing coastal currents thus reducing density of water masses influencing major deep water formation areas in the Subarctic Atlantic Ocean. Ultimately, the observed freshening could have implications for the Atlantic meridional overturning circulation. PMID- 29030550 TI - A conserved KLF-autophagy pathway modulates nematode lifespan and mammalian age associated vascular dysfunction. AB - Loss of protein and organelle quality control secondary to reduced autophagy is a hallmark of aging. However, the physiologic and molecular regulation of autophagy in long-lived organisms remains incompletely understood. Here we show that the Kruppel-like family of transcription factors are important regulators of autophagy and healthspan in C. elegans, and also modulate mammalian vascular age associated phenotypes. Kruppel-like family of transcription factor deficiency attenuates autophagy and lifespan extension across mechanistically distinct longevity nematode models. Conversely, Kruppel-like family of transcription factor overexpression extends nematode lifespan in an autophagy-dependent manner. Furthermore, we show the mammalian vascular factor Kruppel-like family of transcription factor 4 has a conserved role in augmenting autophagy and improving vessel function in aged mice. Kruppel-like family of transcription factor 4 expression also decreases with age in human vascular endothelium. Thus, Kruppel like family of transcription factors constitute a transcriptional regulatory point for the modulation of autophagy and longevity in C. elegans with conserved effects in the murine vasculature and potential implications for mammalian vascular aging.KLF family transcription factors (KLFs) regulate many cellular processes, including proliferation, survival and stress responses. Here, the authors position KLFs as important regulators of autophagy and lifespan in C. elegans, a role that may extend to the modulation of age-associated vascular phenotypes in mammals. PMID- 29030551 TI - Kif2 localizes to a subdomain of cortical endoplasmic reticulum that drives asymmetric spindle position. AB - Asymmetric positioning of the mitotic spindle is a fundamental process responsible for creating sibling cell size asymmetry; however, how the cortex causes the depolymerization of astral microtubules during asymmetric spindle positioning has remained elusive. Early ascidian embryos possess a large cortical subdomain of endoplasmic reticulum (ER) that causes asymmetric spindle positioning driving unequal cell division. Here we show that the microtubule depolymerase Kif2 localizes to this subdomain of cortical ER. Rapid live-cell imaging reveals that microtubules are less abundant in the subdomain of cortical ER. Inhibition of Kif2 function prevents the development of mitotic aster asymmetry and spindle pole movement towards the subdomain of cortical ER, whereas locally increasing microtubule depolymerization causes exaggerated asymmetric spindle positioning. This study shows that the microtubule depolymerase Kif2 is localized to a cortical subdomain of endoplasmic reticulum that is involved in asymmetric spindle positioning during unequal cell division.Early ascidian embryos have a cortical subdomain of endoplasmic reticulum (ER) that controls asymmetric spindle positioning driving unequal cell division. Here the authors show that the microtubule depolymerase Kif2 is localized to a cortical subdomain of the ER that is involved in asymmetric spindle positioning. PMID- 29030552 TI - BAD-LAMP controls TLR9 trafficking and signalling in human plasmacytoid dendritic cells. AB - Toll-like receptors (TLR) are essential components of the innate immune system. Several accessory proteins, such as UNC93B1, are required for transport and activation of nucleic acid sensing Toll-like receptors in endosomes. Here, we show that BAD-LAMP (LAMP5) controls TLR9 trafficking to LAMP1+ late endosomes in human plasmacytoid dendritic cells (pDC), leading to NF-kappaB activation and TNF production upon DNA detection. An inducible VAMP3+/LAMP2+/LAMP1- endolysosome compartment exists in pDCs from which TLR9 activation triggers type I interferon expression. BAD-LAMP-silencing enhances TLR9 retention in this compartment and consequent downstream signalling events. Conversely, sustained BAD-LAMP expression in pDCs contributes to their lack of type I interferon production after exposure to a TGF-beta-positive microenvironment or isolation from human breast tumours. Hence, BAD-LAMP limits interferon expression in pDCs indirectly, by promoting TLR9 sorting to late endosome compartments at steady state and in response to immunomodulatory cues.TLR9 is highly expressed by plasmacytoid dendritic cells and detects nucleic acids, but to discriminate between host and microbial nucleic acids TLR9 is sorted into different endosomal compartments. Here the authors show that BAD-LAMP limits type 1 interferon responses by sorting TLR9 to late endosomal compartments. PMID- 29030553 TI - Actomyosin polarisation through PLC-PKC triggers symmetry breaking of the mouse embryo. AB - Establishment of cell polarity in the mammalian embryo is fundamental for the first cell fate decision that sets aside progenitor cells for both the new organism and the placenta. Yet the sequence of events and molecular mechanism that trigger this process remain unknown. Here, we show that de novo polarisation of the mouse embryo occurs in two distinct phases at the 8-cell stage. In the first phase, an apical actomyosin network is formed. This is a pre-requisite for the second phase, in which the Par complex localises to the apical domain, excluding actomyosin and forming a mature apical cap. Using a variety of approaches, we also show that phospholipase C-mediated PIP2 hydrolysis is necessary and sufficient to trigger the polarisation of actomyosin through the Rho-mediated recruitment of myosin II to the apical cortex. Together, these results reveal the molecular framework that triggers de novo polarisation of the mouse embryo.The molecular trigger that establishes cell polarity in the mammalian embryo is unclear. Here, the authors show that de novo polarisation of the mouse embryo at the 8-cell stage is directed by Phospholipase C and Protein kinase C and occurs in two phases: polarisation of actomyosin followed by the Par complex. PMID- 29030554 TI - HDX reveals the conformational dynamics of DNA sequence specific VDR co-activator interactions. AB - The vitamin D receptor/retinoid X receptor-alpha heterodimer (VDRRXRalpha) regulates bone mineralization via transcriptional control of osteocalcin (BGLAP) gene and is the receptor for 1alpha,25-dihydroxyvitamin D3 (1,25D3). However, supra-physiological levels of 1,25D3 activates the calcium-regulating gene TRPV6 leading to hypercalcemia. An approach to attenuate this adverse effect is to develop selective VDR modulators (VDRMs) that differentially activate BGLAP but not TRPV6. Here we present structural insight for the action of a VDRM compared with agonists by employing hydrogen/deuterium exchange. Agonist binding directs crosstalk between co-receptors upon DNA binding, stabilizing the activation function 2 (AF2) surfaces of both receptors driving steroid receptor co-activator 1 (SRC1) interaction. In contrast, AF2 of VDR within VDRM:BGLAP bound heterodimer is more vulnerable for large stabilization upon SRC1 interaction compared with VDRM:TRPV6 bound heterodimer. These results reveal that the combination of ligand structure and DNA sequence tailor the transcriptional activity of VDR toward specific target genes.The vitamin D receptor/retinoid X receptor-alpha heterodimer (VDRRXRalpha) regulates bone mineralization. Here the authors employ hydrogen/deuterium exchange (HDX) mass spectrometry to study the conformational dynamics of VDRRXRalpha and give mechanistic insights into how VDRRXRalpha controls the transcriptional activity of specific genes. PMID- 29030555 TI - Highly compressed water structure observed in a perchlorate aqueous solution. AB - The discovery by the Phoenix Lander of calcium and magnesium perchlorates in Martian soil samples has fueled much speculation that flows of perchlorate brines might be the cause of the observed channeling and weathering in the surface. Here, we study the structure of a mimetic of Martian water, magnesium perchlorate aqueous solution at its eutectic composition, using neutron diffraction in combination with hydrogen isotope labeling and empirical potential structure refinement. We find that the tetrahedral structure of water is heavily perturbed, the effect being equivalent to pressurizing pure water to pressures of order 2 GPa or more. The Mg2+ and ClO4- ions appear charge-ordered, confining the water on length scales of order 9 A, preventing ice formation at low temperature. This may explain the low evaporation rates and high deliquescence of these salt solutions, which are essential for stability within the low relative humidity environment of the Martian atmosphere.Significant amounts of different perchlorate salts have been discovered on the surface of Mars. Here, the authors show that magnesium perchlorate has a major impact on water structure in solution, providing insight into how an aqueous fluid might exist under the sub freezing conditions present on Mars. PMID- 29030556 TI - Entanglement between more than two hundred macroscopic atomic ensembles in a solid. AB - There are both fundamental and practical motivations for studying whether quantum entanglement can exist in macroscopic systems. However, multiparty entanglement is generally fragile and difficult to quantify. Dicke states are multiparty entangled states where a single excitation is delocalized over many systems. Building on previous work on quantum memories for photons, we create a Dicke state in a solid by storing a single photon in a crystal that contains many large atomic ensembles with distinct resonance frequencies. The photon is re-emitted at a well-defined time due to an interference effect analogous to multi-slit diffraction. We derive a lower bound for the number of entangled ensembles based on the contrast of the interference and the single-photon character of the input, and we experimentally demonstrate entanglement between over two hundred ensembles, each containing a billion atoms. We also illustrate the fact that each individual ensemble contains further entanglement.Multipartite entanglement is of both fundamental and practical interest, but is notoriously difficult to witness and characterise. Here, Zarkeshian et al. demonstrate multipartite entanglement in an atomic frequency comb storing a single photon in a Dicke state spread over a macroscopic ensemble. PMID- 29030557 TI - Heading representations in primates are compressed by saccades. AB - Perceptual illusions help to understand how sensory signals are decoded in the brain. Here we report that the opposite approach is also applicable, i.e., results from decoding neural activity from monkey extrastriate visual cortex correctly predict a hitherto unknown perceptual illusion in humans. We record neural activity from monkey medial superior temporal (MST) and ventral intraparietal (VIP) area during presentation of self-motion stimuli and concurrent reflexive eye movements. A heading-decoder performs veridically during slow eye movements. During fast eye movements (saccades), however, the decoder erroneously reports compression of heading toward straight ahead. Functional equivalents of macaque areas MST and VIP have been identified in humans, implying a perceptual correlate (illusion) of this perisaccadic decoding error. Indeed, a behavioral experiment in humans shows that perceived heading is perisaccadically compressed toward the direction of gaze. Response properties of primate areas MST and VIP are consistent with being the substrate of the newly described visual illusion.Macaque higher visual areas MST and VIP encode heading direction based on self-motion stimuli. Here the authors show that, while making saccades, the heading direction decoded from the neural responses is compressed toward straight ahead, and independently demonstrate a perceptual illusion in humans based on this perisaccadic decoding error. PMID- 29030558 TI - Optical conversion of pure spin currents in hybrid molecular devices. AB - Carbon-based molecules offer unparalleled potential for THz and optical devices controlled by pure spin currents: a low-dissipation flow of electronic spins with no net charge displacement. However, the research so far has been focused on the electrical conversion of the spin imbalance, where molecular materials are used to mimic their crystalline counterparts. Here, we use spin currents to access the molecular dynamics and optical properties of a fullerene layer. The spin mixing conductance across Py/C60 interfaces is increased by 10% (5 * 1018 m-2) under optical irradiation. Measurements show up to a 30% higher light absorbance and a factor of 2 larger photoemission during spin pumping. We also observe a 0.15 THz slowdown and a narrowing of the vibrational peaks. The effects are attributed to changes in the non-radiative damping and energy transfer. This opens new research paths in hybrid magneto-molecular optoelectronics, and the optical detection of spin physics in these materials.Carbon-based molecules could prove useful in terahertz and optical devices controlled by pure spin currents. Here, conversely, the authors use spin currents to probe molecular dynamics and enhance the optical response of a fullerene layer, enabling hybrid magneto-molecular optoelectronic devices. PMID- 29030559 TI - Understanding seed-mediated growth of gold nanoclusters at molecular level. AB - The continuous development of total synthesis chemistry has allowed many organic and biomolecules to be produced with known synthetic history-that is, a complete set of step reactions in their synthetic routes. Here, we extend such molecular level precise reaction routes to nanochemistry, particularly to a seed-mediated synthesis of inorganic nanoparticles. By systematically investigating the time dependent abundance of 35 intermediate species in total, we map out relevant step reactions in a model size growth reaction from molecularly pure Au25 to Au44 nanoparticles. The size growth of Au nanoparticles involves two different size evolution processes (monotonic LaMer growth and volcano-shaped aggregative growth), which are driven by a sequential 2-electron boosting of the valence electron count of Au nanoparticles. Such fundamental findings not only provide guiding principles to produce other sizes of Au nanoparticles (e.g., Au38), but also represent molecular-level insights on long-standing puzzles in nanochemistry, including LaMer growth, aggregative growth, and digestive ripening.Synthetic nanochemistry currently lacks the molecular step-by-step routes afforded to organic chemistry by total synthesis. Here, the authors track the seeded growth of atom-precise gold nanoclusters using mass spectrometry, revealing that the clusters evolve through a series of intermediates in two electron steps. PMID- 29030560 TI - Risk of Sarcopenia and Osteoporosis in Male Tuberculosis Survivors: Korea National Health and Nutrition Examination Survey. AB - Short-term prospective studies have suggested that pulmonary tuberculosis (TB) preludes permanent loss of lean tissue and fat mass even when TB treatment is effective. The aim of this study was to estimate the risk of sarcopenia and osteoporosis among Korean male TB survivors. Data of the population-based, Korea National Health and Nutrition Examination Survey (KNHANES) (2008-2011) were analyzed, including 3,228 males aged 50 years or older who underwent chest X-ray (CXR) and dual-energy x-ray absorptiometry (DEXA). TB survivors having both medical history and TB scars on CXR had increased risk of sarcopenia (odds ratio [OR] 3.44, 95% confidence interval [CI] 1.79-6.68) and osteoporosis (OR 1.75, 95% CI 1.04-2.95) after adjusting for age, height, smoking, alcohol, physical activity, serum 25-hydroxyvitamin D, parathyroid hormone level, education, and fat mass index. Having TB scars on CXR without medical history of TB was an independent risk factor of sarcopenia (OR 2.05, 95% CI 1.05-4.00), but not a risk factor of osteoporosis. Sarcopenia and low bone mineral density are prevalent in pulmonary TB survivors with TB scars on CXR. Medical history of TB with TB scars on CXR is an independent risk factor for sarcopenia and osteoporosis. PMID- 29030561 TI - Oxidative and anti-oxidative status in muscle of young rats in response to six protein diets. AB - We investigated the impact of six protein diets on oxidation and anti-oxidation status in the muscle of young rats. Rats were fed six protein diets for 14 days, including casein (control), and proteins isolated from soy, fish, chicken, pork and beef. Grx1, Trx1 and other oxidative metabolic indices in muscle were quantified. Compared with the casein diet, the soy protein diet had a similar oxidation level, but higher GSH and lower SOD activities. The chicken and fish protein groups had lower GSH and higher SOD activities, the pork protein group showed lower Grx1 levels than the casein group and the beef protein group showed the highest GSH, Grx1 and Trx1 levels as reflected by RT-PCR, Western blotting and immunohistochemistry analyses. Intake of meat proteins showed higher ROS and T-AOC but lower MDA levels than non-meat proteins, which may be due to the increase in Grx1 and Trx1 expression and other antioxidants. Meat proteins are more conducive to muscle of growing rats. PMID- 29030562 TI - Astrocyte calcium waves propagate proximally by gap junction and distally by extracellular diffusion of ATP released from volume-regulated anion channels. AB - Wave-like propagation of [Ca2+]i increases is a remarkable intercellular communication characteristic in astrocyte networks, intercalating neural circuits and vasculature. Mechanically-induced [Ca2+]i increases and their subsequent propagation to neighboring astrocytes in culture is a classical model of astrocyte calcium wave and is known to be mediated by gap junction and extracellular ATP, but the role of each pathway remains unclear. Pharmacologic analysis of time-dependent distribution of [Ca2+]i revealed three distinct [Ca2+]i increases, the largest being in stimulated cells independent of extracellular Ca2+ and inositol 1,4,5-trisphosphate-induced Ca2+ release. In addition, persistent [Ca2+]i increases were found to propagate rapidly via gap junctions in the proximal region, and transient [Ca2+]i increases were found to propagate slowly via extracellular ATP in the distal region. Simultaneous imaging of astrocyte [Ca2+]i and extracellular ATP, the latter of which was measured by an ATP sniffing cell, revealed that ATP was released within the proximal region by volume-regulated anion channel in a [Ca2+]i independent manner. This detailed analysis of a classical model is the first to address the different contributions of two major pathways of calcium waves, gap junctions and extracellular ATP. PMID- 29030563 TI - Methane fluxes from coastal sediments are enhanced by macrofauna. AB - Methane and nitrous oxide are potent greenhouse gases (GHGs) that contribute to climate change. Coastal sediments are important GHG producers, but the contribution of macrofauna (benthic invertebrates larger than 1 mm) inhabiting them is currently unknown. Through a combination of trace gas, isotope, and molecular analyses, we studied the direct and indirect contribution of two macrofaunal groups, polychaetes and bivalves, to methane and nitrous oxide fluxes from coastal sediments. Our results indicate that macrofauna increases benthic methane efflux by a factor of up to eight, potentially accounting for an estimated 9.5% of total emissions from the Baltic Sea. Polychaetes indirectly enhance methane efflux through bioturbation, while bivalves have a direct effect on methane release. Bivalves host archaeal methanogenic symbionts carrying out preferentially hydrogenotrophic methanogenesis, as suggested by analysis of methane isotopes. Low temperatures (8 degrees C) also stimulate production of nitrous oxide, which is consumed by benthic denitrifying bacteria before it reaches the water column. We show that macrofauna contributes to GHG production and that the extent is dependent on lineage. Thus, macrofauna may play an important, but overlooked role in regulating GHG production and exchange in coastal sediment ecosystems. PMID- 29030564 TI - Dynamic annealing in Ge studied by pulsed ion beams. AB - The formation of radiation damage in Ge above room temperature is dominated by complex dynamic annealing processes, involving migration and interaction of ballistically-generated point defects. Here, we study the dynamics of radiation defects in Ge in the temperature range of 100-160 degrees C under pulsed beam irradiation with 500 keV Ar ions when the total ion fluence is split into a train of equal square pulses. By varying the passive portion of the beam duty cycle, we measure a characteristic time constant of dynamic annealing, which rapidly decreases from ~8 to 0.3 ms with increasing temperature. By varying the active portion of the beam duty cycle, we measure an effective diffusion length of ~38 nm at 110 degrees C. Results reveal a major change in the dominant dynamic annealing process at a critical transition temperature of ~130 degrees C. The two dominant dynamic annealing processes have an order of magnitude different activation energies of 0.13 and 1.3 eV. PMID- 29030565 TI - Proteolytic signatures define unique thrombin-derived peptides present in human wound fluid in vivo. AB - The disease burden of failing skin repair and non-healing ulcers is extensive. There is an unmet need for new diagnostic approaches to better predict healing activity and wound infection. Uncontrolled and excessive protease activity, of endogenous or bacterial origin, has been described as a major contributor to wound healing impairments. Proteolytic peptide patterns could therefore correlate and "report" healing activity and infection. This work describes a proof of principle delineating a strategy by which peptides from a selected protein, human thrombin, are detected and attributed to proteolytic actions. With a particular focus on thrombin-derived C-terminal peptides (TCP), we show that distinct peptide patterns are generated in vitro by the human S1 peptidases human neutrophil elastase and cathepsin G, and the bacterial M4 peptidases Pseudomonas aeruginosa elastase and Staphylococcus aureus aureolysin, respectively. Corresponding peptide sequences were identified in wound fluids from acute and non-healing ulcers, and notably, one peptide, FYT21 (FYTHVFRLKKWIQKVIDQFGE), was only present in wound fluid from non-healing ulcers colonized by P. aeruginosa and S. aureus. Our result is a proof of principle pointing at the possibility of defining peptide biomarkers reporting distinct proteolytic activities, of potential implication for improved diagnosis of wound healing and infection. PMID- 29030566 TI - Unobtrusive Nocturnal Heartbeat Monitoring by a Ballistocardiographic Sensor in Patients with Sleep Disordered Breathing. AB - Sleep disordered breathing (SDB) is known for fluctuating heart rates and an increased risk of developing arrhythmias. The current reference for heartbeat analysis is an electrocardiogram (ECG). As an unobtrusive alternative, we tested a sensor foil for mechanical vibrations to perform a ballistocardiography (BCG) and applied a novel algorithm for beat-to-beat cycle length detection. The aim of this study was to assess the correlation between beat-to-beat cycle length detection by the BCG algorithm and simultaneously recorded ECG. In 21 patients suspected for SDB undergoing polysomnography, we compared ECG to simultaneously recorded BCG data analysed by our algorithm. We analysed 362.040 heartbeats during a total of 93 hours of recording. The baseline beat-to-beat cycle length correlation between BCG and ECG was r s = 0.77 (n = 362040) with a mean absolute difference of 15 +/- 162 ms (mean cycle length: ECG 923 +/- 220 ms; BCG 908 +/- 203 ms). After filtering artefacts and improving signal quality by our algorithm, the correlation increased to r s = 0.95 (n = 235367) with a mean absolute difference in cycle length of 4 +/- 72 ms (ECG 920 +/- 196 ms; BCG 916 +/- 194 ms). We conclude that our algorithm, coupled with a BCG sensor foil provides good correlation of beat-to-beat cycle length detection with simultaneously recorded ECG. PMID- 29030567 TI - Plasmodium falciparum specific helicase 3 is nucleocytoplasmic protein and unwinds DNA duplex in 3' to 5' direction. AB - Plasmodium falciparum is responsible for most dangerous and prevalent form of malaria. The emergence of multi drug resistant parasite hindered the prevention of malaria burden worldwide. Helicases are omnipresent enzymes, which play important role in nucleic acid metabolism and can be used as potential targets for development of novel therapeutics. The genome wide analysis of P. falciparum 3D7 strain revealed some novel parasite specific helicases, which are not present in human host. Here we report the detailed biochemical characterization of P. falciparum parasite specific helicase 3 (PfPSH3). The characteristic ATPase and helicase activities of PfPSH3 reside in its N-terminal region (PfPSH3N) as it contains all the conserved signature motifs whereas the C-terminal does not show any detectable biochemical activity. PfPSH3N also shows DNA helicase activity in the 3'-5' direction. The immunofluorescence microscopy results show that PSH3 is localized in nucleus as well as in cytoplasm during different stages such as trophozoite and early schizont stages of intraerythrocytic development. This report sets the foundation for further study of parasite specific helicases and will be helpful in understanding the parasite biology. PMID- 29030568 TI - Cognitive appraisal of environmental stimuli induces emotion-like states in fish. AB - The occurrence of emotions in non-human animals has been the focus of debate over the years. Recently, an interest in expanding this debate to non-tetrapod vertebrates and to invertebrates has emerged. Within vertebrates, the study of emotion in teleosts is particularly interesting since they represent a divergent evolutionary radiation from that of tetrapods, and thus they provide an insight into the evolution of the biological mechanisms of emotion. We report that Sea Bream exposed to stimuli that vary according to valence (positive, negative) and salience (predictable, unpredictable) exhibit different behavioural, physiological and neuromolecular states. Since according to the dimensional theory of emotion valence and salience define a two-dimensional affective space, our data can be interpreted as evidence for the occurrence of distinctive affective states in fish corresponding to each the four quadrants of the core affective space. Moreover, the fact that the same stimuli presented in a predictable vs. unpredictable way elicited different behavioural, physiological and neuromolecular states, suggests that stimulus appraisal by the individual, rather than an intrinsic characteristic of the stimulus, has triggered the observed responses. Therefore, our data supports the occurrence of emotion-like states in fish that are regulated by the individual's perception of environmental stimuli. PMID- 29030569 TI - Active GSK3beta and an intact beta-catenin TCF complex are essential for the differentiation of human myogenic progenitor cells. AB - Wnt-beta-catenin signalling is essential for skeletal muscle myogenesis during development, but its role in adult human skeletal muscle remains unknown. Here we have used human primary CD56Pos satellite cell-derived myogenic progenitors obtained from healthy individuals to study the role of Wnt-beta-catenin signalling in myogenic differentiation. We show that dephosphorylated beta catenin (active-beta-catenin), the central effector of the canonical Wnt cascade, is strongly upregulated at the onset of differentiation and undergoes nuclear translocation as differentiation progresses. To establish the role of Wnt signalling in regulating the differentiation process we manipulated key nodes of this pathway through a series of beta-catenin gain-of-function (GSK3 inhibition and beta-catenin overexpression) or loss-of-function experiments (dominant negative TCF4). Our data showed that manipulation of these critical pathway components led to varying degrees of disruption to the normal differentiation phenotype indicating the importance of Wnt signalling in regulating this process. We reveal an independent necessity for active-beta-catenin in the fusion and differentiation of human myogenic progenitors and that dominant negative inhibition of TCF4 prevents differentiation completely. Together these data add new mechanistic insights into both Wnt signalling and adult human myogenic progenitor differentiation. PMID- 29030570 TI - New insights into the degradation mechanism of metal-organic frameworks drug carriers. AB - A versatile method based on Raman microscopy was developed to follow the degradation of iron carboxylate Metal Organic Framework (MOF) nano- or micro particles in simulated body fluid (phosphate buffer). The analysis of both the morphology and chemical composition of individual particles, including observation at different regions on the same particle, evidenced the formation of a sharp erosion front during particle degradation. Interestingly, this front separated an intact non eroded crystalline core from an amorphous shell made of an inorganic network. According to Mossbauer spectrometry investigations, the shell consists essentially of iron phosphates. Noteworthy, neither drug loading nor surface modification affected the integrity of the tridimensional MOF network. These findings could be of interest in the further development of next generations of MOF drug carriers. PMID- 29030571 TI - Objective-lens-free Fiber-based Position Detection with Nanometer Resolution in a Fiber Optical Trapping System. AB - Position detection with high accuracy is crucial for force calibration of optical trapping systems. Most existing position detection methods require high-numerical aperture objective lenses, which are bulky, expensive, and difficult to miniaturize. Here, we report an affordable objective-lens-free, fiber-based position detection scheme with 2 nm spatial resolution and 150 MHz bandwidth. This fiber based detection mechanism enables simultaneous trapping and force measurements in a compact fiber optical tweezers system. In addition, we achieved more reliable signal acquisition with less distortion compared with objective based position detection methods, thanks to the light guiding in optical fibers and small distance between the fiber tips and trapped particle. As a demonstration of the fiber based detection, we used the fiber optical tweezers to apply a force on a cell membrane and simultaneously measure the cellular response. PMID- 29030572 TI - Transgenic Nicotiana benthamiana plants expressing a hairpin RNAi construct of a nematode Rs-cps gene exhibit enhanced resistance to Radopholus similis. AB - Burrowing nematodes (Radopholus similis) cause severe harm in many agronomic and horticultural crops and are very difficult to manage. Cathepsin S is one of the most important cysteine proteinases and plays key roles in nematodes and many other parasites. To evaluate the effect of in planta RNAi on the control of this nematode, a specific fragment from the protease gene, cathepsin S (Rs-cps), was cloned into the binary vector pFGC5941 in the forward and reverse orientations to construct recombinant plant RNAi vectors. Transgenic Nicotiana benthamiana plants expressing Rs-cps dsRNA were obtained and studied. The transcript abundance of Rs cps dsRNA appeared to be diverse in the different transgenic lines. Moreover, the bioassay results revealed that Rs-cps transgenic N. benthamiana plants were resistant to R. similis and the transcription level of Rs-cps in R. similis was drastically decreased. In addition, the reproduction and hatching rate of R. similis isolated from the Rs-cps transgenic plants were also significantly reduced. Our results suggest that Rs-cps is essential for the reproduction and pathogenicity of R. similis. This is the first study to employ in planta RNAi approach to target the Rs-cps gene for the control of plant parasitic nematodes. PMID- 29030573 TI - Adjusting the catalytic properties of cobalt ferrite nanoparticles by pulsed laser fragmentation in water with defined energy dose. AB - Highly active, structurally disordered CoFe2O4/CoO electrocatalysts are synthesized by pulsed laser fragmentation in liquid (PLFL) of a commercial CoFe2O4 powder dispersed in water. A partial transformation of the CoFe2O4 educt to CoO is observed and proposed to be a thermal decomposition process induced by the picosecond pulsed laser irradiation. The overpotential in the OER in aqueous alkaline media at 10 mA cm-2 is reduced by 23% compared to the educt down to 0.32 V with a Tafel slope of 71 mV dec-1. Importantly, the catalytic activity is systematically adjustable by the number of PLFL treatment cycles. The occurrence of thermal melting and decomposition during one PLFL cycle is verified by modelling the laser beam energy distribution within the irradiated colloid volume and comparing the by single particles absorbed part to threshold energies. Thermal decomposition leads to a massive reduction in particle size and crystal transformations towards crystalline CoO and amorphous CoFe2O4. Subsequently, thermal melting forms multi-phase spherical and network-like particles. Additionally, Fe-based layered double hydroxides at higher process cycle repetitions emerge as a byproduct. The results show that PLFL is a promising method that allows modification of the structural order in oxides and thus access to catalytically interesting materials. PMID- 29030574 TI - Aggregation behavior and reproductive compatibility in the family Cimicidae. AB - Bed bugs (Cimex lectularius) provide a unique opportunity to understand speciation and host-associated divergence in parasites. Recently, two sympatric but genetically distinct lineages of C. lectularius were identified: one associated with humans and one associated with bats. We investigated two mechanisms that could maintain genetic differentiation in the field: reproductive compatibility (via mating crosses) and aggregation fidelity (via two-choice sheltering assays). Effects were assessed at the intra-lineage level (within human-associated bed bugs), inter-lineage level (between human- and bat associated bed bugs), and inter-species level (between C. lectularius and Cimex pipistrelli [bat bug]). Contrary to previous reports, bed bugs were found to be reproductively compatible at both the intra- and inter-lineage levels, but not at the inter-species level (although three hybrids were produced, one of which developed into an adult). Lineage- and species-specific aggregation fidelity was only detected in 8% (4 out of 48) of the aggregation fidelity assays run. These results indicate that under laboratory conditions, host-associated lineages of bed bugs are reproductively compatible, and aggregation pheromones are not capable of preventing gene flow between lineages. PMID- 29030575 TI - Adolescent Ethanol Exposure Enhances NMDA Receptor-Mediated Currents in Hippocampal Neurons: Reversal by Gabapentin. AB - Adolescent intermittent ethanol (AIE) exposure compromises neural function into adulthood. We have reported that astrocyte-secreted thrombospondins, and their target neuronal receptors (alpha2delta-1) are upregulated in the hippocampus in adulthood after AIE, suggesting aberrant excitatory synaptogenesis and hyperexcitability in memory-related circuits. Gabapentin antagonizes the interaction of thrombospondins (TSPs) with the alpha2delta-1 receptor, and thus may reverse or ameliorate the effects of AIE on hippocampal function. Adolescent rats were exposed to AIE or vehicle. In adulthood, hippocampal slices were prepared. Half of the slices from each animal were pre-incubated in normal artificial cerebrospinal fluid (aCSF) while half were pre-incubated in aCSF containing gabapentin. Whole-cell voltage clamp recordings were then made from CA1 pyramidal cells in normal aCSF. Evoked, N-methyl-D-aspartate (NMDA) receptor mediated currents were recorded at baseline, and after application of the GluN2B antagonist, RO25-6981. Current amplitudes were higher in neurons from AIE-exposed animals. However, no amplitude increase was observed in neurons from slices that had been pre-incubation in gabapentin. GluN2B antagonism reduced NMDA receptor mediated currents more efficaciously in cells from AIE-exposed animals, an effect that was also reversed by pre-incubation in gabapentin. These findings identify a mechanism underlying the enduring effects of AIE, and a clinically-utilized agent that may ameliorate those effects. PMID- 29030576 TI - Genetic induction of hypometabolism by ablation of MC4R does not suppress ALS like phenotypes in the G93A mutant SOD1 mouse model. AB - Dysfunction and death of motor neurons leads to progressive paralysis in amyotrophic lateral sclerosis (ALS). Recent studies have reported organism-level metabolic dysfunction as a prominent but poorly understood feature of the disease. ALS patients are hypermetabolic with increased resting energy expenditure, but if and how hypermetabolism contributes to disease pathology is unknown. We asked if decreasing metabolism in the mutant superoxide dismutase 1 (SOD1) mouse model of ALS (G93A SOD1) would alter motor function and survival. To address this, we generated mice with the G93A SOD1 mutation that also lacked the melanocortin-4 receptor (MC4R). MC4R is a critical regulator of energy homeostasis and food intake in the hypothalamus. Loss of MC4R is known to induce hyperphagia and hypometabolism in mice. In the MC4R null background, G93A SOD1 mice become markedly hypometabolic, overweight and less active. Decreased metabolic rate, however, did not reverse any ALS-related disease phenotypes such as motor dysfunction or decreased lifespan. While hypermetabolism remains an intriguing target for intervention in ALS patients and disease models, our data indicate that the melanocortin system is not a good target for manipulation. Investigating other pathways may reveal optimal targets for addressing metabolic dysfunction in ALS. PMID- 29030577 TI - Population admixture in Chinese and European Sus scrofa. AB - Relationships between different populations were investigated using Porcine 60 K data from 1,135 domestic pigs and wild boars across Europe and China. The results indicate that most European breeds have been introgressed with Chinese ancestry, but the extent of introgression varies considerably among breeds. Moreover, the main source of this introgression is pigs from South China, closely related to Bamaxiang and Dongshan pigs. Contributions from East and Central Chinese pig breeds are also detectable. Phylogeny reconstruction places European wild boars among European domestic breeds. Coalescent simulations indicate that this may be the result of gene flow from European wild boars to European domestic pigs. These results will facilitate further genomic studies such as genome-wide association studies, selection signature detection and genomic prediction. PMID- 29030578 TI - Simultaneous fusion, imaging and encryption of multiple objects using a single pixel detector. AB - A novel technique for the simultaneous fusion, imaging and encryption of multiple objects using a single-pixel detector is proposed. Here, encoded multiplexing patterns are employed to illuminate multiple objects simultaneously. The mixed light reflected from the objects is detected by a single-pixel detector. An iterative reconstruction method is used to restore the fused image by summing the multiplexed patterns and detected intensities. Next, clear images of the objects are recovered by decoding the fused image. We experimentally obtain fused and multiple clear images by utilizing a single-pixel detector to collect the direct and indirect reflected light. Technically, by utilizing the patterns with per pixel exposure control, multiple objects' information is multiplexed into the detected intensities and then demultiplexed computationally under the single pixel imaging and compressed sensing schemes. An encryption experiment is performed by setting the multiplexed patterns' encoding as keys. PMID- 29030579 TI - Effect of iodinated contrast media on renal perfusion: A randomized comparison study in pigs using quantitative contrast-enhanced ultrasound (CEUS). AB - The administration of iodinated contrast media (CM) can cause microcirculatory disorder leading to acute renal dysfunction. In a prospective, randomized investigation two CM (Iodixanol vs Iopromide) were compared in 16 pigs. Each animal received 10 intra-aortal injections (5 ml Iodixanol or 4.32 ml Iopromide). Microcirculation was assessed using contrast-enhanced ultrasound (CEUS) directly on the kidney surface using time-to-peak (TTP) and blood-volume-analysis. Macroscopic observations were documented. Post mortem residual CM distribution in the kidneys was detected using X-ray. TTP was significantly prolonged over the descending vasa recta of the Iopromide group. This coincided with a visible marble-like pattern on the kidney surface occurring in 30 out of 80 Iopromide injections but in 4 out of 80 Iodixanol-injections (p = 0.007). The blood volume over the entire kidney did not change after Iodixanol-application, but decreased by about 6.1% after Iopromide-application. The regional blood volume in the renal cortex showed a tendency to decrease by about 13.5% (p = 0.094) after Iodixanol application, and clearly decreased by about 31.7% (p = 0.022) after Iopromide application. The study revealed a consistent influence of repeated injections of two different CM on the kidney perfusion using three different imaging methods (CEUS analysis, macroscopic observation and X-ray analysis). PMID- 29030580 TI - Bony labyrinth morphology clarifies the origin and evolution of deer. AB - Deer are an iconic group of large mammals that originated in the Early Miocene of Eurasia (ca. 19 Ma). While there is some consensus on key relationships among their members, on the basis of molecular- or morphology-based analyses, or combined approaches, many questions remain, and the bony labyrinth has shown considerable potential for the phylogenetics of this and other groups. Here we examine its shape in 29 species of living and fossil deer using 3D geometric morphometrics and cladistics. We clarify several issues of the origin and evolution of cervids. Our results give new age estimates at different nodes of the tree and provide for the first time a clear distinction of stem and crown Cervidae. We unambiguously attribute the fossil Euprox furcatus (13.8 Ma) to crown Cervidae, pushing back the origin of crown deer to (at least) 4 Ma. Furthermore, we show that Capreolinae are more variable in bony labyrinth shape than Cervinae and confirm for the first time the monophyly of the Old World Capreolinae (including the Chinese water deer Hydropotes) based on morphological characters only. Finally, we provide evidence to support the sister group relationship of Megaloceros giganteus with the fallow deer Dama. PMID- 29030581 TI - Dielectric imaging for differentiation between cancer and inflammation in vivo. AB - In this study, we develop an in vivo dielectric imaging technique that measures capacitance using pin-type electrode arrays. Compared to normal tissues, cancer tissues exhibit higher capacitance values, allowing us to image the cancer region and monitor the chemotherapeutic effects of cancer in real-time. A comparison with the histopathological results shows that the in vivo dielectric imaging technique is able to detect small tumors (<3 mm) and tumor-associated changes. In addition, we demonstrate that cancer and inflammation may be distinguished by measuring the capacitance images at different frequencies. In contrast, the positron emission tomography using 2-[18F]-fluoro-2-deoxy-D-glucose was not capable of discriminating between cancer and inflammation. PMID- 29030582 TI - Non-contact method to freely control the radiation patterns of antenna with multi folded transformation optics. AB - In this paper, we propose to use multi-folded transformation optics method to design a non-contact illusion device that can distantly and freely manipulate the radiation behavior of antenna located at a certain distance and such manipulation is enabled by the use of mapped electromagnetic medium coated with the transformed medium. The proposed design aims to achieve the radiation pattern of our choice from the antenna that does not possess any electromagnetic medium. Based on this, the functionality of parabolic antenna is distantly achieved from the point source. We further extended our idea to array of antennas in which the proposed device distantly makes the linear array of antennas behave like a geometrically different array of antennas. Our work extends the concept of illusion optics for active scatterer that will be very helpful for future antenna design. PMID- 29030583 TI - Catastrophic failure of nacre under pure shear stresses of torsion. AB - Nacre, a composite made from biogenic aragonite and proteins, exhibits excellent strength and toughness. Here, we show that nacreous sections can exhibit complete brittle fracture along the tablet interfaces at the proportional limit under pure shear stresses of torsion. We quantitatively separate the initial tablet sliding primarily resisted by nanoscale aragonite pillars from the following sliding resisted by various microscale toughening mechanisms. We postulate that the ductility of nacre can be limited by eliminating tablet interactions during crack propagations. Our findings should help pursuing further insights of layered materials by using torsion. PMID- 29030584 TI - Brain activity to transitional objects in patients with borderline personality disorder. AB - Adult patients with borderline personality disorders (BPD) frequently have attachments to inanimate transitional objects (TOs) such as stuffed animals. Using event-related potential (ERP) recordings, we determined in patients with BPD the neural correlates of the processing of these attachment-relevant objects and their functional significance. Sixteen female patients with BPD viewed pictures of their TOs, other familiar stuffed toys (familiar objects, FOs), and unfamiliar objects (UOs). ERPs in the patients were compared to those in 16 matched healthy controls who possessed a stuffed animal of comparably high familiarity. Here, we found a specific increase of frontal P3/LPP amplitude in patients with BPD, which was related to attachment anxiety and depression scores. Attachment-related TO stimuli in patients with BPD specifically modulated stages of emotional stimulus evaluation reflecting processing of self-relevance. The relation of the frontal ERP effect to patients' attachment anxiety and depression highlights the function of TOs for coping with anxiety about being abandoned by significant others and for dealing with depressive symptoms. PMID- 29030585 TI - Environmental controls on sap flow in black locust forest in Loess Plateau, China. AB - Black locust accounts for over 90% of artificial forests in China's Loess Plateau region. However, water use of black locust is an uphill challenge for this semi arid region. To accurately quantify tree water use and to explain the related hydrological processes, it is important to collect reliable data for application in the estimation of sap flow and its response to environmental factors. This study measured sap flow in black locust in the 2015 and 2016 growth seasons using the thermal dissipation probes technique and laboratory-calibrated Granier's equation. The study showed that the laboratory calibrated coefficient alpha was much larger than the original value presented by Granier, while the coefficient beta was similar to the original one. The average daily transpiration was 2.1 mm day-1 for 2015 and 1.6 mm day-1 for 2016. Net solar radiation (Rn) was the key meteorological factor controlling sap flow, followed by vapor pressure deficit (VPD) and then temperature (T). VPD had a threshold control on sap flow at threshold values of 1.9 kPa for 2015 and 1.6 kPa for 2016. The effects of diurnal hysteresis of Rn, VPD and T on sap flow were evident, indicating that black locust water use was conservative. PMID- 29030586 TI - Batrachochytrium salamandrivorans not detected in U.S. survey of pet salamanders. AB - We engaged pet salamander owners in the United States to screen their animals for two amphibian chytrid fungal pathogens Batrachochytrium dendrobatidis (Bd) and B. salamandrivorans (Bsal). We provided pet owners with a sampling kit and instructional video to swab the skin of their animals. We received 639 salamander samples from 65 species by mail, and tested them for Bd and Bsal using qPCR. We detected Bd on 1.3% of salamanders (95% CI 0.0053-0.0267) and did not detect Bsal (95% CI 0.0000-0.0071). If Bsal is present in the U.S. population of pet salamanders, it occurs at a very low prevalence. The United States Fish and Wildlife Service listed 201 species of salamanders as "injurious wildlife" under the Lacey Act (18 U.S.C. S 42) on January 28, 2016, a precautionary action to prevent the introduction of Bsal to the U.S. through the importation of salamanders. This action reduced the number of salamanders imported to the U.S. from 2015 to 2016 by 98.4%. Our results indicate that continued precautions should be taken to prevent the introduction and establishment of Bsal in the U.S., which is a hotspot of salamander biodiversity. PMID- 29030587 TI - NatD promotes lung cancer progression by preventing histone H4 serine phosphorylation to activate Slug expression. AB - N-alpha-acetyltransferase D (NatD) mediates N-alpha-terminal acetylation (Nt acetylation) of histone H4 known to be involved in cell growth. Here we report that NatD promotes the migratory and invasive capabilities of lung cancer cells in vitro and in vivo. Depletion of NatD suppresses the epithelial-to-mesenchymal transition (EMT) of lung cancer cells by directly repressing the expression of transcription factor Slug, a key regulator of EMT. We found that Nt-acetylation of histone H4 antagonizes histone H4 serine 1 phosphorylation (H4S1ph), and that downregulation of Nt-acetylation of histone H4 facilitates CK2alpha binding to histone H4 in lung cancer cells, resulting in increased H4S1ph and epigenetic reprogramming to suppress Slug transcription to inhibit EMT. Importantly, NatD is commonly upregulated in primary human lung cancer tissues where its expression level correlates with Slug expression, enhanced invasiveness, and poor clinical outcomes. These findings indicate that NatD is a crucial epigenetic modulator of cell invasion during lung cancer progression.NatD is an acetyltransferase responsible for N-alpha-terminal acetylation of the histone H4 and H2A and has been linked to cell growth. Here the authors show that NatD-mediated acetylation of histone H4 serine 1 competes with the phosphorylation by CK2alpha at the same residue thus leading to the upregulation of Slug and tumor progression. PMID- 29030588 TI - Impaired branched-chain amino acid metabolism may underlie the nonalcoholic fatty liver disease-like pathology of neonatal testosterone-treated female rats. AB - Polycystic ovary syndrome (PCOS) is frequently associated with non-alcoholic fatty liver disease (NAFLD), but the mechanisms involved in the development of NAFLD in PCOS are not well known. We investigated histological changes and metabolomic profile in the liver of rat models of PCOS phenotype induced by testosterone or estradiol. Two-day old female rats received sc injections of 1.25 mg testosterone propionate (Testos; n = 10), 0.5 mg estradiol benzoate (E2; n = 10), or vehicle (control group, CNT; n = 10). Animals were euthanized at 90-94 d of age and the liver was harvested for histological and metabolomic analyses. Findings showed only Testos group exhibited fatty liver morphology and higher levels of ketogenic and branched-chain amino acids (BCAA). Enrichment analysis showed effects of testosterone on BCAA degradation pathway and mitochondrial enzymes related to BCAA metabolism. Testos group also had a decreased liver fatty acid elongase 2 (ELOVL2) activity. E2 group had reduced lipid and acylcarnitine metabolites in the liver. Both groups had increased organic cation transporters (SLC22A4 and SLC16A9) activity. These findings indicate that neonatal testosterone treatment, but not estradiol, produces histological changes in female rat liver that mimic NAFLD with testosterone-treated rats showing impaired BCAA metabolism and dysfunctions in ELOVL2, SLC22A4 and SLC16A9 activity. PMID- 29030589 TI - Aberrant ocular architecture and function in patients with Klinefelter syndrome. AB - Klinefelter Syndrome (KS), the most common chromosomal disorder in men (47,XXY), is associated with numerous comorbidities. Based on a number of isolated case reports, we performed the first systematic and comprehensive evaluation of eye health in KS patients with a focus on ocular structure and vascularization. Twenty-one KS patients and 26 male and 38 female controls underwent a variety of non-invasive examinations investigating ocular morphology (examination of retinal thickness, optic nerve head, and cornea) and function (visual field testing and quantification of ocular vessel density by optical coherence tomography angiography). In comparison to healthy controls, KS patients exhibited a smaller foveal avascular zone and a decreased retinal thickness due to a drastically thinner outer nuclear layer. The cornea of KS patients showed a decreased peripheral thickness and volume. In perimetry evaluation, KS patients required brighter stimuli and gave more irregular values. KS patients show an ocular phenotype including morphological and functional features, which is very likely caused by the supernumerary X chromosome. Thus, KS should not be limited to infertility, endocrine dysfunction, neurocognitive and psychosocial comorbidities. Defining an aberrant ocular morphology and function, awareness for possible eye problems should be raised. PMID- 29030590 TI - Cytotoxicity of thymoquinone alone or in combination with cisplatin (CDDP) against oral squamous cell carcinoma in vitro. AB - Cisplatin (CDDP) is potent anticancer agent used for several tumor types. Thymoquinone (TQ) is naturally occurring compound drawing great attention as anticancer and chemomodulator for chemotherapies. Herein, we studied the potential cytotoxicity of thymoquinone, CDDP and their combination against human oral squamous cell carcinoma cell in contrast to normal oral epithelial cells. CDDP similarly killed both head and neck squamous cell carcinoma cells (UMSCC 14C) and normal oral epithelial cells (OEC). TQ alone exerted considerable cytotoxicity against UMSCC-14C cells; while it induced weaker killing effect against normal oral epithelial cells (OEC). Equitoxic combination of TQ and CDDP showed additive to synergistic interaction against both UMSCC-14C and OEC cells. TQ alone increased apoptotic cell fraction in UMSCC-14C cells, as early as after 6 hours. In addition, prolonged exposure of UMSCC-14C to TQ alone resulted in 96.7 +/- 1.6% total apoptosis which was increased after combination with CDDP to 99.3 +/- 1.2% in UMSCC-14C cells. On the other hand, TQ induced marginal increase in the apoptosis in OEC and even decreased the apoptosis induced by CDDP alone. Finally, apoptosis induction results were confirmed by the change in the expression levels of p53, Bcl-2 and Caspase-9 proteins in both UMSCC-14c and OEC cells. PMID- 29030591 TI - Enhanced terahertz fingerprint detection with ultrahigh sensitivity using the cavity defect modes. AB - We report a new scheme of realizing terahertz fingerprint detection with ultrahigh sensitivity. Instead of using the direct absorption of terahertz through a bare sample in the regular transmission scheme, a cavity mode resonating at the characteristic frequency of the sample is used and due to the high dependence of the cavity mode transmission on the material loss, an amplified transmission decaying is observed when the sample is loaded into the cavity. Furthermore, this scheme retains the feature of substance identification. A one-dimensional photonic crystal cavity is used as the example for the detection of alpha-lactose and an efficient detection of 10 nm alpha-lactose can be achieved, which corresponds to 1/57000 of the free space wavelength at the characteristic frequency of 0.529 THz, exhibiting a sensitivity over 400 times higher than the regular transmission method. PMID- 29030592 TI - Rare occurrence of inflammatory bowel disease in a cohort of Han Chinese ankylosing spondylitis patients- a single institute study. AB - Despite a high prevalence of ankylosing spondylitis (AS) in Han Chinese, the clinical experience remains very limited in the extra-articular presentation of inflammatory bowel disease (IBD). A monocentric retrospective study was performed for the AS-associated IBD manifestation. This study analyzed AS patients fulfilling the 1984 revised New York diagnostic criteria, excluding those who had the onset of IBD before or concurrently with the diagnosis of AS, for their demographic, clinical, laboratory, radiological, pathological and medication data, particularly in the usage of anti-TNF monoclonal antibody. Among 988 AS patients with 19.8% female, 4 (0.4%) had the overt IBD presentation, one female and 3 male aged 28 to 47 years (38.8 +/- 4.6), all ulcerative colitis with the characteristic histopathological findings. At the onset of colitis, all had a long-term disease duration of 10 to 25 years (17.5 +/- 6.5) and high BASDAI 7.5 to 8.8 (8.2 +/- 0.5) with the hip joint involvement. There were recurrent flares of colitis despite the treatment with corticosteroids and messalazopyrin/salazopyrin, and no relapses of IBD were observed for 6.0 +/- 1.1 years after the adalimumab (ADA) therapy. In this retrospective cohort, we demonstrate the rarity of AS-associated IBD manifestation in Han Chinese with a beneficent effect from the ADA therapy. PMID- 29030593 TI - Fish perform like mammals and birds in inhibitory motor control tasks. AB - Inhibitory control is an executive function that positively predicts performance in several cognitive tasks and has been considered typical of vertebrates with large and complex nervous systems such as primates. However, evidence is growing that some fish species have evolved complex cognitive abilities in spite of their relatively small brain size. We tested whether fish might also show enhanced inhibitory control by subjecting guppies, Poecilia reticulata, to the motor task used to test warm-blooded vertebrates. Guppies were trained to enter a horizontal opaque cylinder to reach a food reward; then, the cylinder was replaced by a transparent one, and subjects needed to inhibit the response to pass thought the transparency to reach the food. Guppies performed correctly in 58% trials, a performance fully comparable to that observed in most birds and mammals. In experiment 2, we tested guppies in a task with a different type of reward, a group of conspecifics. Guppies rapidly learned to detour a transparent barrier to reach the social reward with a performance close to that of experiment 1. Our study suggests that efficient inhibitory control is shown also by fish, and that its variation between-species is only partially explained by variation in brain size. PMID- 29030594 TI - Pollinator-mediated selection on flowering phenology and floral display in a distylous herb Primula alpicola. AB - The targets and causes of phenotypic selection are crucial to understanding evolutionary ecology. However, few studies have examined selection quantitatively from multiple sources on the same trait identified the agent of natural selection experimentally. Here we quantified phenotypic selection on traits, including flowering phenology and aspects of floral display via female fitness, in the distylous perennial herb Primula alpicola. To determine the role of pollinators in generating selection effects on floral traits, we compared the phenotypic selection gradients in open-pollinated and hand-pollinated plants. Our results show that pollinator-mediated linear selection on flowering start and correlational selection on the number of flowers and scape height explains most of the net phenotypic selection on these traits suggesting pollinators played an important role in shaping floral diversity. We used path analysis and structural equation modeling (SEM) to examine how herbivores affected the relationship between floral traits and female fitness, but no significant selection was caused by seed predators. These results suggest pollinators, not herbivores maybe the significant agent of selection on flora traits. PMID- 29030595 TI - Correlation between the Arrhenius crossover and the glass forming ability in metallic glasses. AB - The distinctive characteristic of the metallic glass-forming system is that the variation in viscosity with temperature obeys Vogel-Fulcher-Tammann (VFT) relationship in the undercooled state and Arrhenius relationship in the high temperature region. A dimensionless index has thus been proposed based on the Arrhenius-VFT crossover and the classical nucleation rate and growth rate theory to evaluate the glass-forming ability (GFA). The indicator G(a) is expressed with the combination of T g , the glass transition temperature, T x , the onset crystallization temperature, T l , the liquidus temperature, T 0, the VFT temperature, and a a constant that could be determined according to the best correlation between G(a) and the critical cooling rate (R c ). Compared with other GFA indexes, G(a) shows the best fit with R c , with the square of the correlation coefficient (R 2) being 0.9238 when a = 0.15 for the 23 various alloy systems concerned about. Our results indicate the crossover in the viscosity variation has key effect on GFA and one can use the index G(a) to predict R c and GFA for different alloys effectively. PMID- 29030596 TI - Mesenchymal stem cells from tumor microenvironment favour breast cancer stem cell proliferation, cancerogenic and metastatic potential, via ionotropic purinergic signalling. AB - Interaction between tumor cells and the microenvironment is key in initiation, progression, and invasiveness of cancer. In particular, mesenchymal stem cells (MSCs) are recruited to the sites of developing tumors, thus promoting metastasis formation. Although it is well known that MSCs migrate and integrate in the tumor microenvironment (TME), their fate and function inside the tumor is still not clear. In this study, we analyzed the role played by MSCs in breast cancer oncogenesis. Data indicate that interaction of breast cancer cells with MSCs results in an increased proliferation and metabolic activity of breast cancer cells, partially due to MSC-derived microvesicles that are shed in the TME. Moreover, we addressed the question of whether we could modulate such interaction by acting on P2X-mediated intercellular communication. By inhibiting P2X-mediated purinergic signaling, we succeeded in reducing both the cancerogenic as well as the metastatic potential of breast cancer cells co-cultured with MSCs, in 2D as well as in 3D in vitro models. Data obtained demonstrate for the first time that the trophic effect of MSCs on breast cancer cell growth is exerted via ionotropic purinergic signaling, thus suggesting the inhibition of the purinergic signaling system as a potential target for therapeutic intervention. PMID- 29030597 TI - Stabilization of a bat-pitcher plant mutualism. AB - Despite the long persistence of many mutualisms, it is largely unknown which mechanisms stabilize these interactions. This is especially true if only one mutualism partner can choose alternative partners while the other cannot, resulting in a power asymmetry. According to biological market theory the choosing partner should prefer the more dependent partner if the latter offers commodities of higher quality than its competitors. We tested this prediction using Bornean carnivorous pitcher plants (Nepenthes hemsleyana) that strongly rely on faecal nitrogen of bats (Kerivoula hardwickii) which roost inside the pitchers. The bats also roost in furled leaves of various plants. Surprisingly, during field observations the bats did not always choose N. hemsleyana pitchers despite their superior quality but were generally faithful either to pitchers or to furled leaves. In behavioural experiments 21% of the leaf-roosting bats switched to pitchers, while the majority of these bats and all pitcher-roosting individuals were faithful to the roost type in which we had found them. Genetic differentiation cannot explain this faithfulness, which likely results from different roosting traditions. Such traditions could have stabilizing or destabilizing effects on various mutualisms and should be investigated in more detail. PMID- 29030598 TI - Single nucleotide polymorphisms in the ETS1 gene are associated with idiopathic inflammatory myopathies in a northern Chinese Han population. AB - Single-nucleotide polymorphisms (SNPs) in the ETS1 gene are associated with several auto-inflammatory diseases. In this study, we determined whether ETS1 gene polymorphisms confer susceptibility to idiopathic inflammatory myopathies (IIMs) in a northern Chinese Han population. DNA samples were collected from 1017 IIM patients: 363 PM cases and 654 DM cases. The results were compared with those of 1280 healthy controls. Five SNPs in the ETS1 region (rs7117932, rs6590330, rs4937362, rs10893845 and rs1128334) were assessed and genotyped using the Sequenom platform. Our data indicated that the rs7117932 alleles and genotypes are associated with DM and IIMs (P c = 6.0 * 10-3 and P c = 0.029; P c = 0.013 and P c = 0.019, respectively). We found a significantly greater percentage of DM and IIM patients with an A allele of rs6590330 than that in the control population (P c = 0.033 and P c = 0.013). Additionally, the rs6590330 genotype was associated with IIMs (P c = 0.020). The percentages of rs7117932 and rs6590330 SNPs were significantly greater in DM and IIM patients with interstitial lung disease (ILD) (all P c < 0.05). This is the first study to reveal that ETS1 polymorphisms are associated with IIMs alone and IIMs with ILD in a northern Chinese Han population. PMID- 29030600 TI - High-speed spinning disks on flexible threads. AB - A common spinning toy, called "buzzer", consists of a perforated disk and flexible threads. Despite of its simple construction, a buzzer can effectively transfer translational motions into high-speed rotations. In the present work, we find that the disk can be spun by hand at an extremely high rotational speed, e.g., 200,000 rpm, which is much faster than the previously reported speed of any manually operated device. We explore, both experimentally and theoretically, the detailed mechanics and potential applications of such a thread-disk system. The theoretical prediction, validated by experimental measurements, can help design and optimize the system for, e.g., easier operation and faster rotation. Furthermore, we investigate the synchronized motion of multiple disks spinning on a string. Distinctly different twist waves can be realized by the multi-disk system, which could be exploited in the control of mechanical waves. Finally, we develop two types of manually-powered electric generators based on the thread disk system. The high-speed rotation of the rotors enables a pulsed high current, which holds great promise for potential applications in, for instance, generating electricity and harvesting energy from ocean waves and other rhythmic translational motions. PMID- 29030601 TI - Interfering with the high-affinity interaction between wheat amylase trypsin inhibitor CM3 and toll-like receptor 4: in silico and biosensor-based studies. AB - Wheat amylase/trypsin bi-functional inhibitors (ATIs) are protein stimulators of innate immune response, with a recently established role in promoting both gastrointestinal and extra-gastrointestinal inflammatory syndromes. These proteins have been reported to trigger downstream intestinal inflammation upon activation of TLR4, a member of the Toll-like family of proteins that activates signalling pathways and induces the expression of immune and pro-inflammatory genes. In this study, we demonstrated the ability of ATI to directly interact with TLR4 with nanomolar affinity, and we kinetically and structurally characterized the interaction between these macromolecules by means of a concerted approach based on surface plasmon resonance binding analyses and computational studies. On the strength of these results, we designed an oligopeptide capable of preventing the formation of the complex between ATI and the receptor. PMID- 29030602 TI - Oscillatory electrostatic potential on graphene induced by group IV element decoration. AB - The structures and electronic properties of partial C, Si and Ge decorated graphene were investigated by first-principles calculations. The calculations show that the interaction between graphene and the decoration patches is weak and the semiconductor patches act as agents for weak electron doping without much disturbing graphene electronic pi-bands. Redistribution of electrons due to the partial decoration causes the electrostatic potential lower in the decorated graphene areas, thus induced an electric field across the boundary between the decorated and non-decorated domains. Such an alternating electric field can change normal stochastic adatom diffusion to biased diffusion, leading to selective mass transport. PMID- 29030603 TI - Conjugation with L,L-diphenylalanine Self-Assemblies Enhances In Vitro Antitumor Activity of Phthalocyanine Photosensitizer. AB - We present the synthesis and characterization of new peptide conjugates obtained by hierarchical co-assembly of L,L-diphenylalanine (FF) and zinc phthalocyanine complexes (ZnPc) in water. Self-assembly capabilities under defined conditions were investigated by scanning electron microscopy, and photophysical properties were evaluated using UV-Vis and fluorescence spectroscopy. AFM observations demonstrated that these ZnPcs form different highly ordered arrays on the crystalline faces of the FF microplates and that surface roughness significantly changes with the presence of differently substituted phthalocyanine units. XRD assays showed that the overall molecular packing of the conjugates is organized according to a hexagonal symmetry, with ZnPcs hosted in the interstices of the peptide phase. In vitro photodynamic studies were conducted on human breast cancer MCF-7 cells to investigate both cellular uptake and cytotoxicity. It was shown that FF self-assemblies are not toxicity and enhance accumulation of ZnPc in MCF-7 cells, improving apoptotic cell death upon irradiation. Our findings demonstrate enhancement of ZnPc antitumor efficiency by FF conjugates and a proof of-concept for new photosensitizer carriers based on peptide conjugates. PMID- 29030599 TI - Genome-wide meta-analysis associates HLA-DQA1/DRB1 and LPA and lifestyle factors with human longevity. AB - Genomic analysis of longevity offers the potential to illuminate the biology of human aging. Here, using genome-wide association meta-analysis of 606,059 parents' survival, we discover two regions associated with longevity (HLA DQA1/DRB1 and LPA). We also validate previous suggestions that APOE, CHRNA3/5, CDKN2A/B, SH2B3 and FOXO3A influence longevity. Next we show that giving up smoking, educational attainment, openness to new experience and high-density lipoprotein (HDL) cholesterol levels are most positively genetically correlated with lifespan while susceptibility to coronary artery disease (CAD), cigarettes smoked per day, lung cancer, insulin resistance and body fat are most negatively correlated. We suggest that the effect of education on lifespan is principally mediated through smoking while the effect of obesity appears to act via CAD. Using instrumental variables, we suggest that an increase of one body mass index unit reduces lifespan by 7 months while 1 year of education adds 11 months to expected lifespan.Variability in human longevity is genetically influenced. Using genetic data of parental lifespan, the authors identify associations at HLA DQA/DRB1 and LPA and find that genetic variants that increase educational attainment have a positive effect on lifespan whereas increasing BMI negatively affects lifespan. PMID- 29030604 TI - Flexible Semiconductor Technologies with Nanoholes-Provided High Areal Coverages and Their Application in Plasmonic-Enhanced Thin Film Photovoltaics. AB - Mechanical flexibility and advanced light management have gained great attentions in designing high performance, flexible thin film photovoltaics for the realization of building-integrated optoelectronic devices and portable energy sources. This study develops a soft thermal nanoimprint process for fabricating nanostructure decorated substrates integrated with amorphous silicon solar cells. Amorphous silicon (a-Si:H) solar cells have been constructed on nanoholes array textured polyimide (PI) substrates. It has been demonstrated that the nanostructures not only are beneficial to the mechanical flexibility improvement but also contribute to sunlight harvesting enhancement. The a-Si:H solar cells constructed on such nanopatterned substrates possess broadband-enhanced light absorption, high quantum efficiency and desirable power conversion efficiency (PCE) and still experience minimal PCE loss even bending around 180 degrees . The PCE performance without antireflection coatings increases to 7.70% and it improves 40% compared with the planar devices. Although the advantages and feasibility of the schemes are demonstrated only in the application of a-Si:H solar cells, the ideas are able to extend to applications of other thin film photovoltaics and semiconductor devices. PMID- 29030605 TI - Cubic gauche polymeric nitrogen under ambient conditions. AB - The long-sought cubic gauche phase of polymeric nitrogen (cg-PN) with nitrogen nitrogen single bonds has been synthesized together with a related phase by a radio-frequency plasma reaction under near-ambient conditions. Here, we report the synthesis of polymeric nitrogen using a mixture of nitrogen and argon flowing over bulk beta-sodium azide or beta-sodium azide dispersed on 100 nm long multiwall carbon nanotubes. The cg-PN phase is identified by Raman and attenuated total reflection-Fourier transform infrared spectroscopy, and powder X-ray diffraction. The synthesis of the cubic gauche allotrope of high energy density polymeric nitrogen under near-ambient conditions should therefore enable its optimized production and applications as a "green" energetic material and a potential catalyst for different chemical reactions.Polymeric phases of nitrogen are promising as environmentally-friendly, high energy-density materials, but are inherently unstable. Here, the authors report the synthesis and stabilization of polymeric nitrogen in its cubic gauche phase under near-ambient conditions, via plasma-enhanced chemical vapour deposition. PMID- 29030606 TI - Molecular mechanism of synergy between the antimicrobial peptides PGLa and magainin 2. AB - PGLa and magainin 2 (MAG2) are amphiphilic alpha-helical membranolytic peptides from frog skin with known synergistic antimicrobial activity. By systematically mutating residues in the two peptides it was possible to identify the ones crucial for the synergy, as monitored by biological assays, fluorescence vesicle leakage, and solid-state 15N-NMR. Electrostatic interactions between anionic groups in MAG2 and cationic residues in PGLa enhance synergy but are not necessary for the synergistic effect. Instead, two Gly residues (7 and 11) in a so-called GxxxG motif in PGLa are necessary for synergy. Replacing either of them with Ala or another hydrophobic residue completely abolishes synergy according to all three methods used. The designer-made peptide MSI-103, which has a similar sequence as PGLa, shows no synergy with MAG2, but by introducing two Gly mutations it was possible to make it synergistic. A molecular model is proposed for the functionally active PGLa-MAG2 complex, consisting of a membrane-spanning antiparallel PGLa dimer that is stabilized by intimate Gly-Gly contacts, and where each PGLa monomer is in contact with one MAG2 molecule at its C-terminus. PMID- 29030607 TI - CCDC88B is required for pathogenesis of inflammatory bowel disease. AB - Inflammatory bowel disease (IBD) involves interaction between host genetic factors and environmental triggers. CCDC88B maps within one IBD risk locus on human chromosome 11q13. Here we show that CCDC88B protein increases in the colon during intestinal injury, concomitant with an influx of CCDC88B+lymphoid and myeloid cells. Loss of Ccdc88b protects against DSS-induced colitis, with fewer pathological lesions and reduced intestinal inflammation in Ccdc88b-deficient mice. In a T cell transfer model of colitis, Ccdc88b mutant CD4+ T cells do not induce colitis in immunocompromised hosts. Expression of human CCDC88B RNA and protein is higher in IBD patient colons than in control colon tissue. In human CD14+ myeloid cells, CCDC88B is regulated by cis-acting variants. In a cohort of patients with Crohn's disease, CCDC88B expression correlates positively with disease risk. These findings suggest that CCDC88B has a critical function in colon inflammation and the pathogenesis of IBD.Hook-related protein family member CCDC88b is encoded by a locus that has been associated with inflammatory bowel disease. Here the authors show that Ccdc88b inactivation in T cells prevents colitis in a transfer model, and detect high colonic levels of CCDC88b in patients with Crohn disease or ulcerative colitis, identifying that expression correlates with disease risk. PMID- 29030608 TI - Self-organisation of small-world networks by adaptive rewiring in response to graph diffusion. AB - Complex networks emerging in natural and human-made systems tend to assume small world structure. Is there a common mechanism underlying their self-organisation? Our computational simulations show that network diffusion (traffic flow or information transfer) steers network evolution towards emergence of complex network structures. The emergence is effectuated through adaptive rewiring: progressive adaptation of structure to use, creating short-cuts where network diffusion is intensive while annihilating underused connections. With adaptive rewiring as the engine of universal small-worldness, overall diffusion rate tunes the systems' adaptation, biasing local or global connectivity patterns. Whereas the former leads to modularity, the latter provides a preferential attachment regime. As the latter sets in, the resulting small-world structures undergo a critical shift from modular (decentralised) to centralised ones. At the transition point, network structure is hierarchical, balancing modularity and centrality - a characteristic feature found in, for instance, the human brain. PMID- 29030609 TI - Signatures of positive selection reveal a universal role of chromatin modifiers as cancer driver genes. AB - Tumors are composed of an evolving population of cells subjected to tissue specific selection, which fuels tumor heterogeneity and ultimately complicates cancer driver gene identification. Here, we integrate cancer cell fraction, population recurrence, and functional impact of somatic mutations as signatures of selection into a Bayesian model for driver prediction. We demonstrate that our model, cDriver, outperforms competing methods when analyzing solid tumors, hematological malignancies, and pan-cancer datasets. Applying cDriver to exome sequencing data of 21 cancer types from 6,870 individuals revealed 98 unreported tumor type-driver gene connections. These novel connections are highly enriched for chromatin-modifying proteins, hinting at a universal role of chromatin regulation in cancer etiology. Although infrequently mutated as single genes, we show that chromatin modifiers are altered in a large fraction of cancer patients. In summary, we demonstrate that integration of evolutionary signatures is key for identifying mutational driver genes, thereby facilitating the discovery of novel therapeutic targets for cancer treatment. PMID- 29030610 TI - Angiotensin-converting enzyme Ance is cooperatively regulated by Mad and Pannier in Drosophila imaginal discs. AB - Angiotensin-converting enzyme (ACE) is an evolutionarily conserved peptidyl dipeptidase. Mammalian ACE converts angiotensin I to the active vasoconstrictor angiotensin II, thus playing a critical role for homeostasis of the renin angiotensin system. In Drosophila, the ACE homolog Ance is expressed in specific regions of developing organs, but its regulatory mechanism has not been identified. Here we provide evidence that Ance expression is regulated by a combination of Mad and Pannier (Pnr) in imaginal discs. We demonstrate that Ance expression in eye and wing discs depends on Dpp signaling. The Mad binding site of Ance regulatory region is essential for Ance expression. Ance expression in imaginal discs is also regulated by the GATA family transcription factor Pnr. Pnr directly regulates Ance expression by binding to a GATA site of Ance enhancer. In addition, Pnr and Mad physically and genetically interact. Ance null mutants are morphologically normal but show genetic interaction with dpp mutants. Furthermore, we show that human SMAD2 and GATA4 physically interact and ACE expression in HEK293 cells is regulated by SMAD2 and GATA4. Taken together, this study reveals a cooperative mechanism of Ance regulation by Mad and Pnr. Our data also suggest a conserved transcriptional regulation of human ACE. PMID- 29030611 TI - DNA methylation and transcriptional trajectories during human development and reprogramming of isogenic pluripotent stem cells. AB - Determining cell identity and maturation status of differentiated pluripotent stem cells (PSCs) requires knowledge of the transcriptional and epigenetic trajectory of organs during development. Here, we generate a transcriptional and DNA methylation atlas covering 21 organs during human fetal development. Analysis of multiple isogenic organ sets shows that organ-specific DNA methylation patterns are highly dynamic between week 9 (W9) and W22 of gestation. We investigate the impact of reprogramming on organ-specific DNA methylation by generating human induced pluripotent stem cell (hiPSC) lines from six isogenic organs. All isogenic hiPSCs acquire DNA methylation patterns comparable to existing hPSCs. However, hiPSCs derived from fetal brain retain brain-specific DNA methylation marks that seem sufficient to confer higher propensity to differentiate to neural derivatives. This systematic analysis of human fetal organs during development and associated isogenic hiPSC lines provides insights in the role of DNA methylation in lineage commitment and epigenetic reprogramming in humans.While DNA methylation and gene expression data are widely available for animal models, comprehensive data from human development is rarer. Here, the authors generated transcriptional and DNA methylation data from 21 organs during human development and 6 isogenic induced pluripotent stem cell lines. PMID- 29030612 TI - Healing of Preterm Ruptured Fetal Membranes. AB - Preterm premature rupture of membrane (pPROM) is associated with 30-40% of preterm births. Infection is considered a leading cause of pPROM due to increased levels of proinflammatory cytokines in amniotic fluid. Only 30%, however, are positive for microbial organisms by amniotic fluid culture. Interestingly, in some pregnancies complicated by preterm premature rupture of membranes (pPROM), membranes heal spontaneously and pregnancy continues until term. Here, we investigated mechanisms of amnion healing. Using a preclinical mouse model, we found that small ruptures of the fetal membrane closed within 72 h whereas healing of large ruptures was only 40%. Small rupture induced transient upregulation of cytokines whereas large ruptures elicited sustained upregulation of proinflammatory cytokines in the fetal membranes. Fetal macrophages from amniotic fluid were recruited to the wounded amnion where macrophage adhesion molecules were highly expressed. Recruited macrophages released limited and well localized amounts of IL-1beta and TNF which facilitated epithelial-mesenchymal transition (EMT) and epithelial cell migration. Arg1 + macrophages dominated within 24 h. Migration and healing of the amnion mesenchymal compartment, however, remained compromised. These findings provide novel insights regarding unique healing mechanisms of amnion. PMID- 29030613 TI - Lipopolysaccharide enters the rat brain by a lipoprotein-mediated transport mechanism in physiological conditions. AB - Physiologically, lipopolysaccharide (LPS) is present in the bloodstream and can be bound to several proteins for its transport (i.e.) LPS binding protein (LBP) and plasma lipoproteins). LPS receptors CD14 and TLR-4 are constitutively expressed in the Central Nervous System (CNS). To our knowledge, LPS infiltration in CNS has not been clearly demonstrated. A naturalistic experiment with healthy rats was performed to investigate whether LPS is present with its receptors in brain. Immunofluorescences showed that lipid A and core LPS were present in circumventricular organs, choroid plexus, meningeal cells, astrocytes, tanycytes and endothelial cells. Co-localization of LPS regions with CD14/TLR-4 was found. The role of lipoprotein receptors (SR-BI, ApoER2 and LDLr) in the brain as targets for a LPS transport mechanism by plasma apolipoproteins (i.e. ApoAI) was studied. Co-localization of LPS regions with these lipoproteins markers was observed. Our results suggest that LPS infiltrates in the brain in physiological conditions, possibly, through a lipoprotein transport mechanism, and it is bound to its receptors in blood-brain interfaces. PMID- 29030614 TI - Retinal Degeneration Protein 3 (RD3) in normal human tissues: Novel insights. AB - The 195-amino-acid-long human Retinal Degeneration Protein 3 (RD3) is critical in the regulation of guanylate cyclase (GC) signaling and photoreceptor cell survival. Recently, we identified significant loss of RD3 in high-risk neuroblastoma and the influential role of RD3 in tumor progression. However, the functional characterization of RD3 in tumor systems has been hampered by the dearth of information on its localization in normal tissue and by the lack of antibodies suitable for staining FFPE tissue, primarily due to the inaccessibility of the epitopes. In this study, we validated a custom-synthesized RD3 antibody and investigated the expression/localization of RD3 in assorted human tissues. We observed stratified expression of RD3 in different cell types and subcellular location of retina. We demonstrated extensive positive RD3 immunoreactivity in various normal tissues and particularly strong dot-like perinuclear staining in the lining epithelial cells, suggesting that RD3 may play an important role in the normal functioning of epithelial cells. RD3 expression is limited in the CNS. While neuroblastoma is often RD3-positive, the adrenal medulla, where many neuroblastomas originate, is RD3-negative. Meta-analysis of RD3 transcriptional expression across normal tissues confirmed tissue-specific RD3 mRNA levels. Our results revealed the tissue-specific expression/localization profile of RD3 for the first time. PMID- 29030615 TI - Electrokinetic Analysis of Energy Harvest from Natural Salt Gradients in Nanochannels. AB - The Gibbs free energy released during the mixing of river and sea water has been illustrated as a promising source of clean and renewable energy. Reverse electrodialysis (RED) is one major strategy to gain electrical power from this natural salinity, and recently by utilizing nanochannels a novel mode of this approach has shown improved power density and energy converting efficiency. In this work, we carry out an electrokinetic analysis of the work extracted from RED in the nanochannels. First, we outline the exclusion potential effect induced by the inhomogeneous distribution of extra-counterions along the channel axis. This effect is unique in nanochannel RED and how to optimize it for energy harvesting is the central topic of this work. We then discuss two important indexes of performance, which are the output power density and the energy converting efficiency, and their dependence on the nanochannel parameters such as channel material and geometry. In order to yield maximized output electrical power, we propose a device design by stepwise usage of the saline bias, and the lengths of the nanochannels are optimized to achieve the best trade-off between the input thermal power and the energy converting efficiency. PMID- 29030616 TI - Maternal consumption of fish oil programs reduced adiposity in broiler chicks. AB - Maternal intake of eicosapentaenoic acid (EPA; 20:5 n-3) and docosahexaenoic acid (22:6 n-3) has been associated with reduced adiposity in children, suggesting the possibility to program adipose development through dietary fatty acids before birth. This study determined if enriching the maternal diet in fish oil, the primary source of EPA and DHA, affected adipose development in offspring. Broiler chickens were used because they are obesity-prone, and because fatty acids provided to the embryo can be manipulated through the hen diet. Hens were fed diets supplemented (2.8% wt:wt) with corn oil (CO; n-6) or fish oil (FO; n-3) for 28 d. Chicks from both maternal diet groups were fed the same diet after hatch. Maternal FO consumption enriched chick adipose tissue in EPA and DHA and reduced adiposity by promoting more, but smaller, adipocytes. This adipocyte profile was paralleled by upregulated expression of the adipogenic regulator PPARG and its co activator PPARGC1B, and reduced expression of LPL. Proteomics identified 95 differentially abundant proteins between FO and CO adipose tissue, including components of glucose metabolism, lipid droplet trafficking, and cytoskeletal organization. These results demonstrate that the maternal dietary fatty acid profile programs offspring adipose development. PMID- 29030617 TI - Oxygen isotope anomaly in tropospheric CO2 and implications for CO2 residence time in the atmosphere and gross primary productivity. AB - The abundance variations of near surface atmospheric CO2 isotopologues (primarily 16O12C16O, 16O13C16O, 17O12C16O, and 18O12C16O) represent an integrated signal from anthropogenic/biogeochemical processes, including fossil fuel burning, biospheric photosynthesis and respiration, hydrospheric isotope exchange with water, and stratospheric photochemistry. Oxygen isotopes, in particular, are affected by the carbon and water cycles. Being a useful tracer that directly probes governing processes in CO2 biogeochemical cycles, Delta17O (=ln(1 + delta17O) - 0.516 * ln(1 + delta18O)) provides an alternative constraint on the strengths of the associated cycles involving CO2. Here, we analyze Delta17O data from four places (Taipei, Taiwan; South China Sea; La Jolla, United States; Jerusalem, Israel) in the northern hemisphere (with a total of 455 measurements) and find a rather narrow range (0.326 +/- 0.0050/00). A conservative estimate places a lower limit of 345 +/- 70 PgC year-1 on the cycling flux between the terrestrial biosphere and atmosphere and infers a residence time of CO2 of 1.9 +/ 0.3 years (upper limit) in the atmosphere. A Monte Carlo simulation that takes various plant uptake scenarios into account yields a terrestrial gross primary productivity of 120 +/- 30 PgC year-1 and soil invasion of 110 +/- 30 PgC year-1, providing a quantitative assessment utilizing the oxygen isotope anomaly for quantifying CO2 cycling. PMID- 29030618 TI - Experimental demonstration of magnetoplasmon polariton at InSb(InAs)/dielectric interface for terahertz sensor application. AB - We experimentally demonstrate surface plasmon resonance (SPR) in the terahertz range in InSb and InAs. The surface plasmon is excited on the interface between a thin polymer film and the semiconductor using a silicon prism in Otto configuration. The low effective mass of InSb and InAs permits tuning of the SPR by an external magnetic field in the transversal configuration. The data show a good agreement with a model. Strong excitation of the surface plasmon is present in both materials, with a shifting of resonance position by more than 100 GHz for the field of 0.25 T, to both higher and lower energies with opposite orientation of the magnetic field. Applicability of the terahertz SPR sensor is discussed, along with modeled design for the Kretschmann configuration. PMID- 29030619 TI - Unwavering Pathobiology of Volumetric Muscle Loss Injury. AB - Volumetric muscle loss (VML) resulting from extremity trauma presents chronic and persistent functional deficits which ultimately manifest disability. Acellular biological scaffolds, or decellularized extracellular matrices (ECMs), embody an ideal treatment platform due to their current clinical use for soft tissue repair, off-the-shelf availability, and zero autogenous donor tissue burden. ECMs have been reported to promote functional skeletal muscle tissue remodeling in small and large animal models of VML injury, and this conclusion was reached in a recent clinical trial that enrolled 13 patients. However, numerous other pre clinical reports have not observed ECM-mediated skeletal muscle regeneration. The current study was designed to reconcile these discrepancies. The capacity of ECMs to orchestrate functional muscle tissue remodeling was interrogated in a porcine VML injury model using unbiased assessments of muscle tissue regeneration and functional recovery. Here, we show that VML injury incites an overwhelming inflammatory and fibrotic response that leads to expansive fibrous tissue deposition and chronic functional deficits, which ECM repair does not augment. PMID- 29030620 TI - Transcriptomic profiles of Clostridium ljungdahlii during lithotrophic growth with syngas or H2 and CO2 compared to organotrophic growth with fructose. AB - Clostridium ljungdahlii derives energy by lithotrophic and organotrophic acetogenesis. C. ljungdahlii was grown organotrophically with fructose and also lithotrophically, either with syngas - a gas mixture containing hydrogen (H2), carbon dioxide (CO2), and carbon monoxide (CO), or with H2 and CO2. Gene expression was compared quantitatively by microarrays using RNA extracted from all three conditions. Gene expression with fructose and with H2/CO2 was compared by RNA-Seq. Upregulated genes with both syngas and H2/CO2 (compared to fructose) point to the urea cycle, uptake and degradation of peptides and amino acids, response to sulfur starvation, potentially NADPH-producing pathways involving (S) malate and ornithine, quorum sensing, sporulation, and cell wall remodeling, suggesting a global and multicellular response to lithotrophic conditions. With syngas, the upregulated (R)-lactate dehydrogenase gene represents a route of electron transfer from ferredoxin to NAD. With H2/CO2, flavodoxin and histidine biosynthesis genes were upregulated. Downregulated genes corresponded to an intracytoplasmic microcompartment for disposal of methylglyoxal, a toxic byproduct of glycolysis, as 1-propanol. Several cytoplasmic and membrane associated redox-active protein genes were differentially regulated. The transcriptomic profiles of C. ljungdahlii in lithotrophic and organotrophic growth modes indicate large-scale physiological and metabolic differences, observations that may guide biofuel and commodity chemical production with this species. PMID- 29030621 TI - Flow cytometry as a rapid analytical tool to determine physiological responses to changing O2 and iron concentration by Magnetospirillum gryphiswaldense strain MSR 1. AB - Magnetotactic bacteria (MTB) are a diverse group of bacteria that synthesise magnetosomes, magnetic membrane-bound nanoparticles that have a variety of diagnostic, clinical and biotechnological applications. We present the development of rapid methods using flow cytometry to characterize several aspects of the physiology of the commonly-used MTB Magnetospirillum gryphiswaldense MSR 1. Flow cytometry is an optical technique that rapidly measures characteristics of individual bacteria within a culture, thereby allowing determination of population heterogeneity and also permitting direct analysis of bacteria. Scatter measurements were used to measure and compare bacterial size, shape and morphology. Membrane permeability and polarization were measured using the dyes propidium iodide and bis-(1,3-dibutylbarbituric acid) trimethine oxonol to determine the viability and 'health' of bacteria. Dyes were also used to determine changes in concentration of intracellular free iron and polyhydroxylakanoate (PHA), a bacterial energy storage polymer. These tools were then used to characterize the responses of MTB to different O2 concentrations and iron-sufficient or iron-limited growth. Rapid analysis of MTB physiology will allow development of bioprocesses for the production of magnetosomes, and will increase understanding of this fascinating and useful group of bacteria. PMID- 29030622 TI - Sandwich-structured C/C-SiC composites fabricated by electromagnetic-coupling chemical vapor infiltration. AB - Carbon fiber (CF) reinforced carbon-silicon carbide (C/C-SiC) composites are one of the most promising lightweight materials for re-entry thermal protection, rocket nozzles and brake discs applications. In this paper, a novel sandwich structured C/C-SiC composite, containing two exterior C/SiC layers, two gradient C/C-SiC layers and a C/C core, has been designed and fabricated by two-step electromagnetic-coupling chemical vapor infiltration (E-CVI) for a 20-hour deposition time. The cross-section morphologies, interface microstructures and SiC-matrix growth characteristics and compositions of the composites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD), respectively. Microstructure characterization indicates that the SiC growth includes an initial amorphous SiC zone, a gradual crystallization of SiC and grow-up of nano-crystal, and a columnar grain region. The sandwich structure, rapid deposition rate and growth characteristics are attributed to the formation of thermal gradient and the establishment of electromagnetic field in the E-CVI process. The composite possesses low density of 1.84 g/cm3, high flexural strength of 325 MPa, and low linear ablation rate of 0.38 MUm/s under exposure to 5-cycle oxyacetylene flame for 1000 s at ~1700 degrees C. PMID- 29030623 TI - Monitoring cerebral hemodynamic change during transcranial ultrasound stimulation using optical intrinsic signal imaging. AB - Transcranial ultrasound stimulation (tUS) is a promising non-invasive approach to modulate brain circuits. The application is gaining popularity, however the full effect of ultrasound stimulation is still unclear and further investigation is needed. This study aims to apply optical intrinsic signal imaging (OISI) for the first time, to simultaneously monitor the wide-field cerebral hemodynamic change during tUS on awake animal with high spatial and temporal resolution. Three stimulation paradigms were delivered using a single-element focused transducer operating at 425 kHz in pulsed mode having the same intensity (ISPPA = 1.84 W/cm2, ISPTA = 129 mW/cm2) but varying pulse repetition frequencies (PRF). The results indicate a concurrent hemodynamic change occurring with all actual tUS but not under a sham stimulation. The stimulation initiated the increase of oxygenated hemoglobin (HbO) and decrease of deoxygenated hemoglobin (RHb). A statistically significant difference (p < 0.05) was found in the amplitude change of hemodynamics evoked by varying PRF. Moreover, the acoustic stimulation was able to trigger a global as well as local cerebral hemodynamic alteration in the mouse cortex. Thus, the implementation of OISI offers the possibility of directly investigating brain response in an awake animal during tUS through cerebral hemodynamic change. PMID- 29030624 TI - Psilocybin for treatment-resistant depression: fMRI-measured brain mechanisms. AB - Psilocybin with psychological support is showing promise as a treatment model in psychiatry but its therapeutic mechanisms are poorly understood. Here, cerebral blood flow (CBF) and blood oxygen-level dependent (BOLD) resting-state functional connectivity (RSFC) were measured with functional magnetic resonance imaging (fMRI) before and after treatment with psilocybin (serotonin agonist) for treatment-resistant depression (TRD). Quality pre and post treatment fMRI data were collected from 16 of 19 patients. Decreased depressive symptoms were observed in all 19 patients at 1-week post-treatment and 47% met criteria for response at 5 weeks. Whole-brain analyses revealed post-treatment decreases in CBF in the temporal cortex, including the amygdala. Decreased amygdala CBF correlated with reduced depressive symptoms. Focusing on a priori selected circuitry for RSFC analyses, increased RSFC was observed within the default-mode network (DMN) post-treatment. Increased ventromedial prefrontal cortex-bilateral inferior lateral parietal cortex RSFC was predictive of treatment response at 5 weeks, as was decreased parahippocampal-prefrontal cortex RSFC. These data fill an important knowledge gap regarding the post-treatment brain effects of psilocybin, and are the first in depressed patients. The post-treatment brain changes are different to previously observed acute effects of psilocybin and other 'psychedelics' yet were related to clinical outcomes. A 'reset' therapeutic mechanism is proposed. PMID- 29030625 TI - Pharmacological HIF-inhibition attenuates postoperative adhesion formation. AB - Peritoneal adhesions represent a common complication of abdominal surgery, and tissue hypoxia is a main determinant in adhesion formation. Reliable therapeutic options to reduce peritoneal adhesions are scarce. We investigated whether the formation of postsurgical adhesions can be affected by pharmacological interference with hypoxia-inducible factors (HIFs). Mice were treated with a small molecule HIF-inhibitor, YC-1 (3-[5'-Hydroxymethyl-2'-furyl]-1-benzyl indazole), or vehicle three days before and seven days after induction of peritoneal adhesions or, alternatively, once during induction of peritoneal adhesions. Pretreatment or single intraperitoneal lavage with YC-1 significantly reduced postoperative adhesion formation without prompting systemic adverse effects. Expression analyses of cytokines in peritoneal tissue and fluid and in vitro assays applying macrophages and peritoneal fibroblasts indicated that this effect was cooperatively mediated by various putatively HIF-1alpha-dependent mechanisms, comprising attenuated pro-inflammatory activation of macrophages, impaired recruitment and activation of peritoneal fibroblasts, mitigated epithelial-mesenchymal-transition (EMT), as well as enhanced fibrinolysis and impaired angiogenesis. Thus, this study identifies prevention of postsurgical peritoneal adhesions as a novel and promising field for the application of HIF inhibitors in clinical practice. PMID- 29030626 TI - Pectin methylesterases contribute the pathogenic differences between races 1 and 4 of Fusarium oxysporum f. sp. cubense. AB - Plant cell walls, which are mainly composed of pectin, play important roles in plant defence responses to pathogens. Pectin is synthesised in a highly esterified form and then de-esterified by pectin methylesterases (PMEs). Because of this, PMEs are directly involved in plant defence. However, the molecular mechanisms of their interactions with pectins remain unclear. In this study, we compared the expression level and enzyme activities of PMEs in a banana Cavendish cultivar (Musa AAA 'Brazilian') inoculated with Fusarium oxysporum f. sp. cubense pathogenic races 1 (Foc1) and 4 (Foc4). We further examined the spatial distribution of PMEs and five individual homogalacturonans (HGs) with different degree of pectin methylesterification (DM). Results suggested that the banana roots infected with Foc1 showed lower PME activity than those infected with Foc4, which was consisted with observed higher level of pectin DM. The level of HGs crosslinked with Ca2+ was significantly higher in roots infected with Foc1 compared with those infected with Foc4. Therefore, banana exhibited significantly different responses to Foc1 and Foc4 infection, and these results suggest differences in PME activities, DM of pectin and Ca2+-bridged HG production. These differences could have resulted in observed differences in virulence between Foc1 and Foc4. PMID- 29030627 TI - Different levels of glyphosate-resistant Lolium rigidum L. among major crops in southern Spain and France. AB - Herbicides are the most effective tools for controlling almost 99% of weeds. However, herbicide resistance is a primary concern in modern agriculture. The characterization in new areas and elucidation of the mechanisms of resistance are of vital importance in maintaining the sustainability of herbicides, including glyphosate. Nine populations of Lolium rigidum, showing different response patterns, were characterized as being glyphosate resistant (GR). The wide range of values in fresh weight reduction, survival, shikimic acid and EPSPS enzyme activity indicates a different or a combination resistance mechanism. The Line-3 population resulted in minimum reduction of fresh weight and survival values with respect to the glyphosate-susceptible (GS) population, showing 16.05- and 17.90 fold higher values, respectively. There were significant differences in the 14C glyphosate translocation between GR and GS populations. Moreover, there were differences among the nine GR populations, but they exhibited a reduction in the remaining glyphosate translocation in the treated leaf. The EPSPS gene sequence revealed a Pro-106-Ser substitution in four populations, which could be characterized as being GR with non-target-site and target-site resistance mechanisms. This complexity of several resistance mechanisms makes it necessary to develop long-term integrated weed management strategies to limit further resistance dispersal. PMID- 29030628 TI - Synthetic/ECM-inspired hybrid platform for hollow microcarriers with ROS triggered nanoporation hallmarks. AB - Reactive oxygen species (ROS) are key pathological signals expressed in inflammatory diseases such as cancer, ischemic conditions and atherosclerosis. An ideal drug delivery system should not only be responsive to these signals but also should not elicit an unfavourable host response. This study presents an innovative platform for drug delivery where a natural/synthetic composite system composed of collagen type I and a synthesized polythioether, ensures a dual stimuli-responsive behaviour. Collagen type I is an extracellular matrix constituent protein, responsive to matrix metalloproteinases (MMP) cleavage per se. Polythioethers are stable synthetic polymers characterized by the presence of sulphur, which undergoes a ROS-responsive swelling switch. A polythioether was synthesised, functionalized and tested for cytotoxicity. Optimal conditions to fabricate a composite natural/synthetic hollow sphere construct were optimised by a template-based method. Collagen-polythioether hollow spheres were fabricated, revealing uniform size and ROS-triggered nanoporation features. Cellular metabolic activity of H9C2 cardiomyoblasts remained unaffected upon exposure to the spheres. Our natural/synthetic hollow microspheres exhibit the potential for use as a pathological stimuli-responsive reservoir system for applications in inflammatory diseases. PMID- 29030629 TI - Decadal Western Pacific Warm Pool Variability: A Centroid and Heat Content Study. AB - We examine several characteristics of the Western Pacific Warm Pool (WP) in the past thirty years of mixed interannual variability and climate change. Our study presents the three-dimensional WP centroid (WPC) movement, WP heat content anomaly (HC) and WP volume (WPV) on interannual to decadal time scales. We show the statistically significant correlation between each parameter's interannual anomaly and the NINO 3, NINO 3.4, NINO 4, SOI, and PDO indices. The longitudinal component of the WPC is most strongly correlated with NINO 4 (R = 0.78). The depth component of the WPC has the highest correlation (R = -0.6) with NINO3.4. The WPV and NINO4 have an R-Value of -0.65. HC has the highest correlation with NINO3.4 (R = -0.52). During the study period of 1982-2014, the non-linear trends, derived from ensemble empirical mode decomposition (EEMD), show that the WPV, WP depth and HC have all increased. The WPV has increased by 14% since 1982 and the HC has increased from -1 * 108 J/m2 in 1993 to 10 * 108 J/m2 in 2014. While the largest variances in the latitudinal and longitudinal WPC locations are associated with annual and seasonal timescales, the largest variances in the WPV and HC are due to the multi-decadal non-linear trend. PMID- 29030630 TI - Ecosystem carbon storage in forest fragments of differing patch size. AB - Forest fragmentation threatens the ecosystem carbon (C) storage. The distribution patterns of ecosystem C density are poorly documented for fragmented forests of differing patch size. The objectives of this study were to examine C density in these forest ecosystems and the influence of edge effects on C density. Allometric equations were used to quantify aboveground biomass. Carbon density was estimated by analyzing the C concentration of each component. We found that ecosystem carbon density ranged from 173.9 Mg ha-1 in the small sized forest fragments, to 341.1 Mg ha-1 in the contiguous evergreen sub-tropical forest. Trees (46.5%) and mineral soil (50.2%) were the two largest contributors to the total ecosystem C pool in all fragments. Both C and nitrogen (N) in soil and fine roots were highly heterogeneous among the different fragment sizes and soil depths. We concluded that ecosystem C density of forest fragments were significantly influenced by patch size and edge effects. The fragmented forests in southern China play an important role in the C budget, and need urgent conservation. These results are likely to be further integrated into forest management plans and generalized into other contexts, to evaluate C stocks at the landscape scale. PMID- 29030631 TI - Viscosity is an important factor of resistance to alcohol-based disinfectants by pathogens present in mucus. AB - Alcohol-based disinfectants play an important role in the prevention of healthcare-acquired infection (HAI). We investigated whether pathogens present in mucus acquire resistance to alcohol-based disinfectants, and elucidated the underlying mechanism. Both the resistance of influenza A virus and Escherichia coli to alcohol-based disinfectants or ultraviolet irradiation and the diffusion rate of ethanol were determined in artificial mucus or sputum samples obtained from 27 individuals with acute upper respiratory infection. Pathogens in mucus (artificial mucus or sputum samples) were not completely inactivated by alcohol based disinfectants (survival rate >10%), suggesting that the alcohol-based disinfectants were ineffective. Pathogen survival and mucus viscosity were strongly correlated (correlation coefficient >0.7, P < 0.001). Additionally, the ethanol diffusion rate decreased with increasing mucus viscosity, which contributed to ethanol resistance. Pronase treatment of sputum samples significantly decreased sputum viscosity and increased the disinfectant effect (P < 0.001 for all). In contrast, complete inactivation was achieved by ultraviolet irradiation independently of mucus viscosity. Thus, mucus viscosity contributes to resistance of pathogens to alcohol-based disinfectants by decreasing the alcohol diffusion rate. These findings can provide a basis for developing new strategies, including improved disinfectants, for overcoming HAI. PMID- 29030633 TI - The best platinum regimens for chemo-naive incurable non-small cell lung cancer: network meta-analysis. AB - Platinum regimens still play a key role in chemotherapy for incurable non-small cell lung cancer (NSCLC). Although guidelines list many platina regimens, the best regimens have not yet clarified. Electronic searches were carried out during November 26th-28th, 2016. We included individually randomized trials comparing two or more platinum regimes for incurable chemo-naive NSCLC published in English full papers. The platinum doublets should be either Cisplatin (CDDP), Carboplatin (CBDCA), or Nedaplatin (CDGP) plus one of the third-generation agents. The platinum triplet should be the doublet plus bevacizumab (BEV). The data were independently extracted and cross-checked by two investigators. We did not observed heterogeneity (whole network level Q = 28.9, df = 34, P = 0.717) among 59 pairwise comparisons from 45 studies with 16141 cases for the primary outcome, hazard ratio for overall survival (HRos). Using CBDCA + Paclitaxel (PTX) + BEV as a common comparator, CDGP + Docetaxel (DTX) (HRos = 0.98, 95%CI: 0.75-1.29, P = 0.884), CDDP + Tegafur gimeracil oteracil (S1) (HRos = 1.23, 95%CI: 0.96-1.57, P = 0.099), CBDCA + S1 (HRos = 1.23, 95%CI: 0.99-1.53, P = 0.062), and CDGP + Gemcitabine (GEM) (HRos = 1.24, 95%CI: 0.71-2.17, P = 0.45) did not have significantly poorer HRos. We suggest that these regimens as acceptable first choice regimens. PMID- 29030632 TI - Long-lasting antiviral innate immune priming in the Lophotrochozoan Pacific oyster, Crassostrea gigas. AB - In the last decade, a paradigm shift has emerged in comparative immunology. Invertebrates can no longer be considered to be devoid of specific recognition and immune memory. However, we still lack a comprehensive view of these phenomena and their molecular mechanisms across phyla, especially in terms of duration, specificity, and efficiency in a natural context. In this study, we focused on a Lophotrochozoan/virus interaction, as antiviral priming is mostly overlooked in molluscs. Juvenile Crassostrea gigas oysters experience reoccurring mass mortalities events from Ostreid herpes virus 1 with no existing therapeutic treatment. Our results showed that various nucleic acid injections can prime oysters to trigger an antiviral state ultimately protecting them against a subsequent viral infection. Focusing on poly(I:C) as elicitor, we evidenced that it protected from an environmental infection, by mitigating viral replication. That protection seemed to induce a specific antiviral response as poly(I:C) fails to protect against a pathogenic bacteria. Finally, we showed that this phenomenon was long-lasting, persisting for at least 5 months thus suggesting for the first time the existence of innate immune memory in this invertebrate species. This study strengthens the emerging hypotheses about the broad conservation of innate immune priming and memory mechanisms in Lophotrochozoans. PMID- 29030634 TI - X-ray spectroscopic study of amorphous and polycrystalline PbO films, alpha-PbO, and beta-PbO for direct conversion imaging. AB - We investigated the electronic structure of Lead Oxide (PbO) - one of the most promising photoconductor materials for direct conversion x-ray imaging detectors, using soft x-ray emission and absorption spectroscopy. Two structural configurations of thin PbO layers, namely the polycrystalline and the amorphous phase, were studied, and compared to the properties of powdered alpha-PbO and beta-PbO samples. In addition, we performed calculations within the framework of density functional theory and found an excellent agreement between the calculated and the measured absorption and emission spectra, which indicates high accuracy of our structural models. Our work provides strong evidence that the electronic structure of PbO layers, specifically the width of the band gap and the presence of additional interband and intraband states in both conduction and valence band, depend on the deposition conditions. We tested several model structures using DFT simulations to understand what the origin of these states is. The presence of O vacancies is the most plausible explanation for these additional electronic states. Several other plausible models were ruled out including interstitial O, dislocated O and the presence of significant lattice stress in PbO. PMID- 29030635 TI - Entanglement of photons in their dual wave-particle nature. AB - Wave-particle duality is the most fundamental description of the nature of a quantum object, which behaves like a classical particle or wave depending on the measurement apparatus. On the other hand, entanglement represents nonclassical correlations of composite quantum systems, being also a key resource in quantum information. Despite the very recent observations of wave-particle superposition and entanglement, whether these two fundamental traits of quantum mechanics can emerge simultaneously remains an open issue. Here we introduce and experimentally realize a scheme that deterministically generates entanglement between the wave and particle states of two photons. The elementary tool allowing this achievement is a scalable single-photon setup which can be in principle extended to generate multiphoton wave-particle entanglement. Our study reveals that photons can be entangled in their dual wave-particle behavior and opens the way to potential applications in quantum information protocols exploiting the wave-particle degrees of freedom to encode qubits.Here the authors experimentally realize a scheme that deterministically generates entanglement between the wave and particle states of two photons using a scalable all-optical scheme. They achieve this result by first showing generation of controllable single-photon wave particle superposition states. PMID- 29030636 TI - Cancer-associated fibroblasts induce metalloprotease-independent cancer cell invasion of the basement membrane. AB - At the stage of carcinoma in situ, the basement membrane (BM) segregates tumor cells from the stroma. This barrier must be breached to allow dissemination of the tumor cells to adjacent tissues. Cancer cells can perforate the BM using proteolysis; however, whether stromal cells play a role in this process remains unknown. Here we show that an abundant stromal cell population, cancer-associated fibroblasts (CAFs), promote cancer cell invasion through the BM. CAFs facilitate the breaching of the BM in a matrix metalloproteinase-independent manner. Instead, CAFs pull, stretch, and soften the BM leading to the formation of gaps through which cancer cells can migrate. By exerting contractile forces, CAFs alter the organization and the physical properties of the BM, making it permissive for cancer cell invasion. Blocking the ability of stromal cells to exert mechanical forces on the BM could therefore represent a new therapeutic strategy against aggressive tumors.Stromal cells play various roles in tumor establishment and metastasis. Here the authors, using an ex-vivo model, show that cancer-associated fibroblasts facilitate colon cancer cells invasion in a matrix metalloproteinase-independent manner, likely by pulling and stretching the basement membrane to form gaps. PMID- 29030637 TI - Molecular Mechanisms of the Binding and Specificity of Streptococcus Pneumoniae Sortase C Enzymes for Pilin Subunits. AB - Pili are elongated structures that protrude from bacteria and increase their virulence. The Streptococcus pnuenomae pilus island 1 pili are composed of three subunits, RrgA, RrgB, and RrgC, and are assembled by three class C sortase C (SrtC) enzymes: SrtC-1, SrtC-2, and SrtC-3. Pilin subunits are recognized by SrtC proteins through a pentapeptide sorting signal, and while previous studies have sought to characterize the selectivities of SrtC isoforms for these subunits, the molecular mechanisms underlying these interactions remain unclear. Here, we report a series of molecular dynamics simulations of each SrtC enzyme with the sorting signals of RrgA, RrgB, and RrgC to determine the structural and thermodynamic basis of pilin recognition. Results show that, in accordance with previous studies, both SrtC-1 and SrtC-3 are selective for RrgB, while SrtC-2 is selective for RrgA. This specificity is tuned by the sorting signal binding conformation in which the first two residue sidechains complement hydrophobic residues around the active site, while the third residue projects away from the catalytic triad and makes specific interactions based on its charge and reach. Together, these results provided atomic-scale descriptions of the SrtC substrate selectivity mechanisms and extend the emerging model of pilin construction in S. pnuenomae. PMID- 29030638 TI - UHPLC-MS/MS determination of varietal thiol precursors in Sauvignon Blanc grapes. AB - Varietal thiol precursors in grapes are subject to metabolic changes during post harvest treatments. Metabolic activity should therefore be limited after sampling to understand their biosynthesis in the berry and genetic regulation. In this study, berries were frozen in liquid nitrogen immediately after harvesting, transported in dry ice, stored briefly at -80 degrees C, cryo-milled and extracted without being thawed in cold methanol in a ratio of 1:4 (w/v). A UHPLC MS/MS method for quantitative determination of the thiol precursors 3-S glutathionylhexan-1-ol (G3MH), 3-S-cysteinylhexan-1-ol (Cys3MH), 4-S-glutathionyl 4-methylpentan-2-one (G4MMP) and 4-S-cysteinyl-4-methylpentan-2-one (Cys4MMP), glutathione, oxidized glutathione and L-methionine in grapes was developed. Reference material was provided through synthesis of precursors and their deuterium labelled analogues. The average thiol precursor content in grapes in 2013-15 was in the range 8-16 MUg kg-1 for G3MH, 1-6 MUg kg-1 for Cys3MH, 1-4 MUg kg-1 for Cys4MMP and 0.3 MUg kg-1 for G4MMP. In 2013 and 2014, the highest precursor content in mature Sauvignon Blanc grapes from vineyards located in Italy regarded G3MH, followed by Cys3MH, Cys4MMP and G4MMP. In 2015, G3MH was again the most abundant precursor, but followed by Cys4MMP, Cys3MH and G4MMP. PMID- 29030639 TI - Androgen receptor increases hematogenous metastasis yet decreases lymphatic metastasis of renal cell carcinoma. AB - Clear cell renal cell carcinoma (ccRCC) is a gender-biased tumor. Here we report that there is also a gender difference between pulmonary metastasis and lymph node metastasis showing that the androgen receptor (AR)-positive ccRCC may prefer to metastasize to lung rather than to lymph nodes. A higher AR expression increases ccRCC hematogenous metastasis yet decreases ccRCC lymphatic metastases. Mechanism dissection indicates that AR enhances miR-185-5p expression via binding to the androgen response elements located on the promoter of miR-185-5p, which suppresses VEGF-C expression via binding to its 3' UTR. In contrast, AR-enhanced miR-185-5p also promotes HIF2alpha/VEGF-A expression via binding to the promoter region of HIF2alpha. Together, these results provide a unique mechanism by which AR can either increase or decrease ccRCC metastasis at different sites and may help us to develop combined therapies using anti-AR and anti-VEGF-C compounds to better suppress ccRCC progression.The incidence of renal cell carcinoma is higher in males than in females due to the different androgen receptor signaling but the molecular mechanisms behind this gender bias are unclear. Here the authors show how androgen receptor expression influences the metastatic route through the regulation of miR-185 and VEGF isoforms. PMID- 29030640 TI - Insights into grapevine defense response against drought as revealed by biochemical, physiological and RNA-Seq analysis. AB - Grapevine is an important and extensively grown fruit crop, which is severely hampered by drought worldwide. So, comprehending the impact of drought on grapevine genetic resources is necessary. In the present study, RNA-sequencing was executed using cDNA libraries constructed from both drought-stress and control plants. Results generated 12,451 differentially expressed genes (DEGs), out of which 8,021 genes were up-regulated, and 4,430 were down-regulated. Further physiological and biochemical investigations were also performed to validate the biological processes associated with the development of grapevine in response to drought stress. Results also revealed that decline in the rate of stomatal conductance, in turn, decrease the photosynthetic activity and CO2 assimilation in the grapevine leaves. Reactive oxygen species, including stress enzymes and their related proteins, and secondary metabolites were also activated in the present study. Likewise, various hormones also induced in response to drought stress. Overall, the present study concludes that these DEGs play both positive and negative roles in drought tolerance by regulating various biological pathways of grapevine. Nevertheless, our findings have provided valuable gene information for future studies of abiotic stress in grapevine and various other fruit crops. PMID- 29030641 TI - Lubricin binds cartilage proteins, cartilage oligomeric matrix protein, fibronectin and collagen II at the cartilage surface. AB - Lubricin, a heavily O-glycosylated protein, is essential for boundary lubrication of articular cartilage. Strong surface adherence of lubricin is required given the extreme force it must withstand. Disulfide bound complexes of lubricin and cartilage oligomeric matrix protein (COMP) have recently been identified in arthritic synovial fluid suggesting they may be lost from the cartilage surface in osteoarthritis and inflammatory arthritis. This investigation was undertaken to localise COMP-lubricin complexes within cartilage and investigate if other cartilage proteins are involved in anchoring lubricin to the joint. Immunohistochemical analysis of human cartilage biopsies showed lubricin and COMP co-localise to the cartilage surface. COMP knockout mice, however, presented with a lubricin layer on the articular cartilage leading to the further investigation of additional lubricin binding mechanisms. Proximity ligation assays (PLA) on human cartilage biopsies was used to localise additional lubricin binding partners and demonstrated that lubricin bound COMP, but also fibronectin and collagen II on the cartilage surface. Fibronectin and collagen II binding to lubricin was confirmed and characterised by solid phase binding assays with recombinant lubricin fragments. Overall, COMP, fibronectin and collagen II bind lubricin, exposed on the articular cartilage surface suggesting they may be involved in maintaining essential boundary lubrication. PMID- 29030642 TI - Saline is as effective as nitrogen scavengers for treatment of hyperammonemia. AB - Urea cycle enzyme deficiency (UCED) patients with hyperammonemia are treated with sodium benzoate (SB) and sodium phenylacetate (SPA) to induce alternative pathways of nitrogen excretion. The suggested guidelines supporting their use in the management of hyperammonemia are primarily based on non-analytic studies such as case reports and case series. Canine congenital portosystemic shunting (CPSS) is a naturally occurring model for hyperammonemia. Here, we performed cross-over, randomized, placebo-controlled studies in healthy dogs to assess safety and pharmacokinetics of SB and SPA (phase I). As follow-up safety and efficacy of SB was evaluated in CPSS-dogs with hyperammonemia (phase II). Pharmacokinetics of SB and SPA were comparable to those reported in humans. Treatment with SB and SPA was safe and both nitrogen scavengers were converted into their respective metabolites hippuric acid and phenylacetylglutamine or phenylacetylglycine, with a preference for phenylacetylglycine. In CPSS-dogs, treatment with SB resulted in the same effect on plasma ammonia as the control treatment (i.e. saline infusion) suggesting that the decrease is a result of volume expansion and/or forced diuresis rather than increased production of nitrogenous waste. Consequentially, treatment of hyperammonemia justifies additional/placebo-controlled trials in human medicine. PMID- 29030643 TI - Three-Dimensional Myoarchitecture of the Lower Esophageal Sphincter and Esophageal Hiatus Using Optical Sectioning Microscopy. AB - Studies to date have failed to reveal the anatomical counterpart of the lower esophageal sphincter (LES). We assessed the LES and esophageal hiatus morphology using a block containing the human LES and crural diaphragm, serially sectioned at 50 MUm intervals and imaged at 8.2 MUm/pixel resolution. A 3D reconstruction of the tissue block was reconstructed in which each of the 652 cross sectional images were also segmented to identify the boundaries of longitudinal (LM) and circular muscle (CM) layers. The CM fascicles on the ventral surface of LES are arranged in a helical/spiral fashion. On the other hand, the CM fascicles from the two sides cross midline on dorsal surface and continue as sling/oblique muscle on the stomach. Some of the LM fascicles of the esophagus leave the esophagus to enter into the crural diaphragm and the remainder terminate into the sling fibers of the stomach. The muscle fascicles of the right crus of diaphragm which form the esophageal hiatus are arranged like a "noose" around the esophagus. We propose that circumferential squeeze of the LES and crural diaphragm is generated by a unique myo-architectural design, each of which forms a "noose" around the esophagus. PMID- 29030644 TI - How to prevent the detrimental effects of two months of bed-rest on muscle, bone and cardiovascular system: an RCT. AB - Physical inactivity leads to a deconditioning of the skeletal, neuromuscular and cardiovascular system. It can lead to impaired quality of life, loss of autonomy, falls and fractures. Regular exercise would be a logical remedy, but the generally recommended high-volume endurance and strength training programs require a lot of time and equipment. In this randomized controlled study with 23 healthy participants, we established that a short, intensive jump training program can prevent the large musculoskeletal and cardiovascular deconditioning effects caused by two months of physical inactivity during bed rest, particularly the loss of bone mineral mass and density, lean muscle mass, maximal leg strength and peak oxygen uptake. The jump training group showed no significant changes with respect to these indicators of musculoskeletal and cardiovascular health after 60 days of bed rest, whereas the control group exhibited substantial losses: up to -2.6% in tibial bone mineral content and density, -5% in leg lean mass, -40% in maximal knee extension torque and -29% in peak oxygen uptake. Consequently, we recommend jump training as a very time-efficient and effective type of exercise for astronauts on long-term space missions, the elderly and sedentary populations in general. PMID- 29030645 TI - No, we are not-we keep forgetting the right ventricle. PMID- 29030646 TI - [Systemic treatment of vitiligo : Balance and current developments]. AB - Systemic drug treatment of vitiligo is currently limited to predominantly adjuvant measures for increasing the effectiveness of UV light therapy. We here present new approaches for the systemic treatment of vitiligo currently under clinical investigation. These include the alpha-MSH-analogue afamelatonide and oral immunosuppressants such as the Janus kinase (JAK) inhibitors which target interferon-alpha-dependent autotoxic inflammatory reactions. In 2015 the first publications on the successful systemic use of Janus kinase (JAK) inhibitors in vitiligo appeared. The effectiveness was experimentally supported by animal models of vitiligo and by the characterization of new biomarkers in the serum of vitiligo patients. This may significantly expand the range of treatment options for vitiligo. Topical antiinflammatory and UV therapies are still the main components of vitiligo treatment, often in combination. The main outcome parameters include the extent and duration of repigmentation, cessation of spreading, avoidance of side effects and improvement in the quality of life of patients. PMID- 29030647 TI - The diagnostic reliability of the quantitative pivot-shift evaluation using an electromagnetic measurement system for anterior cruciate ligament deficiency was superior to those of the accelerometer and iPad image analysis. AB - PURPOSE: Several non-invasive devices have been developed to obtain quantitative assessment of the pivot-shift test in clinical setting using similar but diverse measurement parameters. However, the clinical usability of those measurements has yet to be closely investigated and compared. The purpose of this study was to compare the diagnostic accuracy of three non-invasive measurement devices for the pivot-shift test. METHODS: Thirty patients with unilateral anterior cruciate ligament (ACL) injury were enrolled. The pivot-shift test was performed under general anaesthesia. Three devices, an accelerometer system (KiRA), an image analysis iPad application (iPad), and electromagnetic measurement system (EMS), were used simultaneously to provide two parameters, namely tibial acceleration monitored using KiRA and EMS, and tibial translation recorded using iPad and EMS. Side-to-side differences in each parameter and correlation between the measurements were tested, and a receiver-operating characteristic (ROC) curve analysis was conducted to compare their measurement accuracy. RESULTS: Significant side-to-side differences were successfully detected using any of the measurements (all p < 0.01). KiRA demonstrated moderate correlation with the EMS for tibial acceleration (r = 0.54; p < 0.01), while poor correlation was observed between iPad and the EMS for the translation (r = 0.28; p < 0.01). The ROC curve analysis demonstrated better accuracy for the detection of ACL insufficiency in the EMS than KiRA and iPad for tibial acceleration and translation, respectively. CONCLUSIONS: Although all three measurements were similarly capable of detecting ACL deficiency, the EMS has the advantage of comprehensive evaluation of the pivot-shift test by evaluating both tibial acceleration and translation with higher accuracy than those of KiRA and iPad. It could be suggested that any of those measurement tools might improve the clinical diagnosis of ACL insufficiency. LEVEL OF EVIDENCE: Diagnostic study of consecutive patients with a universally applied gold standard, Level Ib. PMID- 29030648 TI - [Interprofessional symptom management at the end of life]. AB - At the end of life patients often show distressful symptoms which significantly reduce their quality of life. The goal of all healthcare professionals should be to recognize the beginning of this end of life period in order to provide good symptom management. For this purpose, existing symptoms have to be recorded, suitable therapeutic goals have to be defined for the current situation and potential therapeutic strategies have to be individually formulated. Besides the identification of underlying causes with the possibility of causal treatment, a symptom-based therapy is often necessary. Therapeutic approaches of different professions should be equally considered and should additionally be used for the benefit of the patient. PMID- 29030649 TI - The floating bowel sign. PMID- 29030650 TI - ThPP1 gene, encodes an inorganic pyrophosphatase in Thellungiella halophila, enhanced the tolerance of the transgenic rice to alkali stress. AB - KEY MESSAGE: An inorganic pyrophosphorylase gene, ThPP1 , modulated the accumulations of phosphate and osmolytes by up-regulating the differentially expression genes, thus enhancing the tolerance of the transgenic rice to alkali stress (AS). Inorganic pyrophosphorylase is essential in catalyzing the hydrolysis of pyrophosphate to inorganic phosphate during plant growth. Here, we report the changes of physiological osmolytes and differentially expression genes in the transgenic rice overexpressing a soluble inorganic pyrophosphatase gene ThPP1 of Thellungiella halophila in response to AS. Analyses showed that the ThPP1 gene was a PPase family I member which is located to the cytoplasm. Data showed that the transgenic lines revealed an enhanced tolerance to AS compared to the wild type, and effectively increased the accumulations of inorganic phosphate and organic small molecules starch, sucrose, proline and chlorophyll, and maintained the balance of osmotic potential by modulating the ratio of Na+/K+ in plant cells. Under AS, total 379 of differentially expression genes were up regulated in the leaves of the transgenic line compared with control, and the enhanced tolerance of the transgenic rice to the AS seemed to be associated with the up-regulations of the osmotic stress-related genes such as the L-type lectin domain containing receptor kinase (L-type LecRK), the cation/H+ antiporter gene and the vacuolar cation/proton exchanger 1 gene (CAX1), which conferred the involvements in the biosynthesis and metabolic pathways. Protein interaction showed that the ThPP1 protein specifically interacted with a 16# target partner of the photosystem II light-harvesting-Chl-binding protein. This study suggested that the ThPP1 gene plays an important regulatory role in conferring the tolerance of the transgenic rice to AS, and is an effective candidate in molecular breeding for crop cultivation of the alkali tolerance. PMID- 29030651 TI - Third symposium on Environmental Toxicology in North Rhine-Westphalia, Germany: Interdisciplinary Research Activities in Toxicology, Statistics, Hygiene and Medicine : Meeting report on a symposium held in Dortmund May 7-8, 2015. PMID- 29030652 TI - Evidence for a complex formation between CYP2J5 and mEH in living cells by FRET analysis of membrane protein interaction in the endoplasmic reticulum (FAMPIR). AB - The potential complex formation between microsomal epoxide hydrolase (mEH) and cytochrome P450-dependent monooxygenase (CYP) has been a subject of research for many decades. Such an association would enable efficient substrate channeling between CYP and mEH and as such represent an attractive strategy to prevent deleterious accumulation of harmful metabolic by-products such as CYP-generated epoxide intermediates. However, such complex formation is experimentally difficult to prove, because CYP and mEH are membrane-bound proteins that are prone to unspecific aggregation after solubilization. Here, we report the development of a FRET-based procedure to analyze the mEH-CYP interaction in living cells by fluorescence-activated cell sorting. With this non-invasive procedure, we demonstrate that CYP2J5 and mEH associate in the endoplasmic reticulum of recombinant HEK293 cells to the same extent as do CYP2J5 and its indispensible redox partner cytochrome P450 reductase. This presents final proof for a very close proximity of CYP and mEH in the endoplasmic reticulum, compatible with and indicative of their physical interaction. In addition, we provide with FAMPIR a robust and easy-to-implement general method for analyzing the interaction of ER membrane-resident proteins that share a type I topology. PMID- 29030653 TI - Lateral unicompartmental knee replacement: a systematic review of reasons for failure. AB - PURPOSE: Currently, individual studies lack the power to successively illustrate different failure modes; therefore, we undertook a systematic review to examine lateral unicompartmental knee replacement (lat UKR) failure modes. Furthermore, we compared early with midterm and late failures and fixed-bearing with mobile bearing implants. METHODS: A search using the databases of PubMed, EMBASE, Cochrane, and annual registries was performed to search for failed lat UKRs. Studies were included when they reported more than four failures, described failure modes and were minimum level IV studies. Data was analysed based on overall failure modes, fixed- vs. mobile bearing and early (<5 years) vs. midterm (5-10 years) vs. late failures (>10 years). RESULTS: Fourteen cohort studies and two registry-based studies were included. A total of 336 overall failures, 87 time-dependent failures, and 175 implant-specific failures were identified. The main overall causes of failure were osteoarthritis (OA) progression (30%) and aseptic loosening (22%). These were followed by less common causes such as instability (7%), unexplained pain (5%), infection (5%), polyethylene wear (5%), and bearing dislocation (5%). Bearing dislocation was the most common early failure (29%) and also the most common failure among mobile-bearing implants (27%). In midterm and late failures, OA progression had the highest rates (59% and 78% respectively) and was also the most common type of failure in fixed bearing implants (44%). CONCLUSIONS: Progression of OA and aseptic loosening are the major overall failure modes in lat UKR. Bearing dislocation was the main failure mode in early years and in mobile-bearing implants, whereas OA progression caused most failures in late years and in fixed-bearing implants. LEVEL OF EVIDENCE: Systematic Review of minimum level IV studies. PMID- 29030655 TI - [Tendonitis calcarea of the piriformis muscle in a young amateur athlete]. AB - Distinct calcific tendonitis associated with chronic pain refractory to conservative treatment can require operative treatment. Symptomatic calcific tendonitis of the piriform muscle, despite calcific tendonitis of other regions, is an extremely rare diagnosis. We report about a young athlete with persistent gluteal pain despite long-term conservative treatment. MRI scans revealed tendonitis calcarea with surrounding soft tissue inflammation. On open surgical removal of the calcification, pain symptoms were relieved and the patient was able to return to sports. PMID- 29030656 TI - [Pyoderma gangraenosum after implantation of a shoulder endoprothesis]. AB - Pyoderma gangrenosum is an inflammatory, ulcerative, neutrophilic dermatosis that is clinically characterized by rapidly evolving, painful, necrotic skin lesions. It is typically associated with chronic systemic inflammatory or neoplastic diseases, but may also occur secondary to cutaneous injury or surgery (pathergy). Post-surgical pyoderma gangrenosum typically develops around surgical sites within the immediate postoperative period, mimicking early wound infection. However, common treatment strategies including antibiotics and debridement fail to improve or even worsen symptoms. Postoperative pyoderma gangrenosum has been most commonly reported from breast and visceral surgery. We present a case of postoperative pyoderma gangrenosum following total shoulder arthroplasty. PMID- 29030654 TI - Predictive and prognostic value of tumor volume and its changes during radical radiotherapy of stage III non-small cell lung cancer : A systematic review. AB - PURPOSE: Lung cancer remains the leading cause of cancer-related mortality worldwide. Stage III non-small cell lung cancer (NSCLC) includes heterogeneous presentation of the disease including lymph node involvement and large tumour volumes with infiltration of the mediastinum, heart or spine. In the treatment of stage III NSCLC an interdisciplinary approach including radiotherapy is considered standard of care with acceptable toxicity and improved clinical outcome concerning local control. Furthermore, gross tumour volume (GTV) changes during definitive radiotherapy would allow for adaptive replanning which offers normal tissue sparing and dose escalation. METHODS: A literature review was conducted to describe the predictive value of GTV changes during definitive radiotherapy especially focussing on overall survival. The literature search was conducted in a two-step review process using PubMed(r)/Medline(r) with the key words "stage III non-small cell lung cancer" and "radiotherapy" and "tumour volume" and "prognostic factors". RESULTS: After final consideration 17, 14 and 9 studies with a total of 2516, 784 and 639 patients on predictive impact of GTV, GTV changes and its impact on overall survival, respectively, for definitive radiotherapy for stage III NSCLC were included in this review. Initial GTV is an important prognostic factor for overall survival in several studies, but the time of evaluation and the value of histology need to be further investigated. GTV changes during RT differ widely, optimal timing for re-evaluation of GTV and their predictive value for prognosis needs to be clarified. The prognostic value of GTV changes is unclear due to varying study qualities, re-evaluation time and conflicting results. CONCLUSION: The main findings were that the clinical impact of GTV changes during definitive radiotherapy is still unclear due to heterogeneous study designs with varying quality. Several potential confounding variables were found and need to be considered for future studies to evaluate GTV changes during definitive radiotherapy with respect to treatment outcome. PMID- 29030657 TI - Meloxicam and risk of myocardial infarction: a population-based nested case control study. AB - Certain non-steroidal anti-inflammatory drugs (NSAIDs) have been associated with an increased risk of myocardial infarction (MI), a risk linked to cyclo-oxygenase 2 inhibition. There are limited studies assessing the risk of MI associated with meloxicam, an increasingly popular drug with COX-2 inhibiting properties. A nested matched case-control study using The Health Improvement Network, a UK population-based database was conducted. NSAID users between 35 and 89 years of age with at least 1 year enrollment in the cohort were included. Incident MI cases were matched on age, sex, practice and event date with up to 4 controls. NSAID exposure was categorized as remote (between 60 days and 1 year), recent (between 1 and 60 days) or current relative to the event date. Current users were further classified as naproxen (negative control), diclofenac (positive control), meloxicam or other NSAID users. Multivariable conditional logistic regression was conducted to determine the risk of MI for each NSAID use categories compared with that of remote users. 9291 MI cases were matched with 30,676 controls. The cases had a higher prevalence of traditional cardiac risk factors, chronic kidney disease and inflammatory arthritis and cardioprotective drug utilization. The adjusted odds ratio of MI for current user compared to remote users were: meloxicam 1.38 (1.17-1.63), naproxen 1.12 (0.96-1.30) and diclofenac 1.37 (1.25 1.50). In this large population-based study, meloxicam increased the risk of MI by 38%. This study warrants cautious use of this increasingly popular drug. PMID- 29030658 TI - Subgrouping fibromyalgia according to prevalence data may lead to a new therapeutic concept. PMID- 29030659 TI - Cyclophosphamide could be a better choice than methotrexate as induction treatment for patients with more severe Takayasu's arteritis. AB - To assess the effectiveness of cyclophosphamide (CYC) versus methotrexate (MTX) for active Takayasu's arteritis (TA). The current study was based on a cohort of TA at Zhongshan Hospital, Fudan University. TA was diagnosed using the 1990 American College of Rheumatology criteria. Fifty-eight subjects receiving induction treatment with CYC (n = 46) or MTX (N = 12) were included in the analysis. Effectiveness and toxicity were assessed in all 58 cases. Clinical remission was defined as: Kerr score reduction to <= 1 and glucocorticoids (GC) treatment at a dose of <= 0.2 mg/kg/day (<= 15 mg/day) at the end of the 6th month. At the baseline, the CYC group had higher Kerr scores (60.9% vs. 16.7% at >=3, p = 0.044), higher ESR (55 +/- 52 vs. 25 +/- 22 mm/H, p = 0.048), ITAS_ESR (12.4 +/- 1.7 vs. 9.1 +/- 1.1 mg/L, p = 0.043). The 6-month clinical remission rate was 71.7% vs. 75% in the CYC and MTX group, respectively. In the CYC group, a significant decrease was observed in ESR (55 +/- 52 vs. 25 +/- 48 mm/H, p = 0.008), hs-CRP (27 +/- 23 vs. 6.9 +/- 6.6 mg/L, p = 0.007), ITAS (11.7 +/- 2.2 vs. 7.0 +/- 1.5, p = 0.048), and ITAS_ESR (7.1 +/- 2.0 vs. 12.4 +/- 1.7, p = 0.033). However, no significant reductions in these measures were demonstrated in the MTX group. Whole-body contrast enhanced magnetic resonance angiography (MRA) revealed significant radiologic improvement (wall enhancement scores: 4.2 +/- 2.3 vs. 10.3 +/- 3.8, p = 0.032) in the CYC group, but not in the MTX group. No severe adverse events occurred in any subject. Cyclophosphamide could be a better choice than methotrexate as induction treatment for patients with more severe Takayasu's arteritis. PMID- 29030661 TI - Identification of the major histocompatibility complex class-II DM and DO alleles in a cohort of northern pig-tailed macaques (Macaca leonina). AB - The northern pig-tailed macaque (Macaca leonina) has been considered as an independent species from the pig-tailed macaque group. We have previously reported that this species macaque has the potential to be a useful animal model in HIV/AIDS pathogenesis and vaccine studies due to its susceptibility to HIV-1. To develop this animal into a potential HIV/AIDS model, we have studied the classical MHC genes of this animal. In this study, the non-classical MHC genes Malo-DM and Malo-DO alleles were first characterized by sequencing and cloning in 12 unrelated northern pig-tailed macaques. A total of 20 full-length sequences identified include 4 Malo-DMA, 5 Malo-DMB, 7 Malo-DOA, and 4 Malo-DOB alleles. Most of these allele sequences were shared between northern pig-tailed macaque and other macaque species in exon 2. The full-length MHC-DM and MHC-DO sequences provide more comprehensive analysis of immunogenetics of northern pig-tailed macaques and increase the value of the macaques in further biomedical studies. PMID- 29030660 TI - Tofacitinib improves atherosclerosis despite up-regulating serum cholesterol in patients with active rheumatoid arthritis: a cohort study. AB - Patients with rheumatoid arthritis (RA) have an increased cardiovascular (CV) risk. This study aimed to analyze the effects of Tofacitinib treatment, a Janus kinase inhibitor, on atherosclerosis in patients with RA. Patients with an active RA (28-joint disease activity score-erythrocyte sedimentation rate > 3.2) despite methotrexate (MTX) treatment 12 mg/week were included in this open-label prospective study and started on Tofacitinib (10 mg/day, 5 mg twice/day). Japanese guideline does not allow high dose of MTX. All patients used a stable dosage of MTX, steroids, and statins or lipid-lowering drugs. The primary endpoint was the comparison of the carotid intima-media thickness (CIMT) at the baseline and 54 weeks after Tofa treatment. Clinical data were collected at regular visits. Forty-six patients completed this study. CIMT did not significantly change from baseline to 54 weeks (1.09 +/- 0.69 and 1.08 +/- 0.78 mm, p = 0.82). In 12 patients who had atherosclerosis at baseline (carotid intima media thickness > 1.10 mm), there was a significant decrease in CIMT (0.05+/- 0.026 mm; p < 0.05). However, the decrease in CIMT was of limited clinical significance. Tofacitinib increased fasting total cholesterol levels from baseline to 54 weeks (216 +/- 25.3 and 234 +/- 28.8 mg/dL, p < 0.01). Tofacitinib affects atherosclerosis in patients with active RA The CIMT in RA patients was stable. Tofacitinib decreased the CIMT of patients who had increased CIMT at baseline. Tofacitinib reduced RA disease activity and limited vascular damage despite up-regulating cholesterol in patients with an active RA. PMID- 29030662 TI - Oral histone deacetylase inhibitor synergises with T cell targeted immunotherapy to preserve beta cell metabolic function and induce stable remission of new-onset autoimmune diabetes in NOD mice. AB - AIM/HYPOTHESIS: Combination therapy targeting the major actors involved in the immune-mediated destruction of pancreatic beta cells appears to be an indispensable approach to treat type 1 diabetes effectively. We hypothesised that the combination of an orally active pan-histone deacetylase inhibitor (HDACi: givinostat) with subtherapeutic doses of CD3 antibodies may provide ideal synergy to treat ongoing autoimmunity. METHODS: NOD mice transgenic for the human CD3epsilon (also known as CD3E) chain (NOD-huCD3epsilon) were treated for recent onset diabetes with oral givinostat, subtherapeutic doses of humanised CD3 antibodies (otelixizumab, 50 MUg/day, 5 days, i.v.) or a combination of both drugs. Disease remission, metabolic profiles and autoreactive T cell responses were analysed in treated mice. RESULTS: We demonstrated that givinostat synergised with otelixizumab to induce durable remission of diabetes in 80% of recently diabetic NOD-huCD3epsilon mice. Remission was obtained in only 47% of mice treated with otelixizumab alone. Oral givinostat monotherapy did not reverse established diabetes but reduced the in situ production of inflammatory cytokines (IL-1beta, IL-6, TNF-alpha). Importantly, the otelixizumab + givinostat combination strongly improved the metabolic status of NOD-huCD3epsilon mice; the mice recovered the capacity to appropriately produce insulin, control hyperglycaemia and sustain glucose tolerance. Finally, diabetes remission induced by the combination therapy was associated with a significant reduction of insulitis and autoantigen-specific CD8+ T cell responses. CONCLUSIONS/INTERPRETATION: HDACi and low-dose CD3 antibodies synergised to abrogate in situ inflammation and thereby improved pancreatic beta cell survival and metabolic function leading to long-lasting diabetes remission. These results support the therapeutic potential of protocols combining these two drugs, both in clinical development, to restore self-tolerance and insulin independence in type 1 diabetes. PMID- 29030663 TI - Extraction of microRNAs from biological matrices with titanium dioxide nanofibers. AB - MicroRNAs (miRNAs) are small RNAs that bind to mRNA targets and regulate their translation. A functional study of miRNAs and exploration of their utility as disease markers require miRNA extraction from biological samples, which contain large amounts of interfering compounds for downstream RNA identification and quantification. The most common extraction methods employ silica columns or the TRIzol reagent but give out low recovery for small RNAs probably due to their short strand lengths. Herein, we fabricated the titanium dioxide nanofibers using electrospinning to facilitate miRNA extraction and developed the optimal buffer conditions to improve miRNA recovery from biological matrices of cell lysate and serum. We found that our TiO2 fibers could obtain a recovery of 18.0 +/- 3.6% for miRNA fibers while carrying out the extraction in the more complex medium of cell lysate, much higher than the 0.02 +/- 0.0001% recovery from the commercial kit. The much improved extraction of miRNAs from our fibers could be originated from the strong coordination between TiO2 and RNA's phosphate backbone. In addition, the binding, washing, and elution buffers judiciously developed in the present study can achieve selective extraction of small RNA shorter than 500 nucleotides in length. Our results demonstrate that TiO2 nanofibers can work as a valuable tool for extraction of miRNAs from biological samples with high recovery. Graphical abstract Schematic for extraction of small RNAs using TiO2 nanofibers. PMID- 29030664 TI - SOFAST-HMQC-an efficient tool for metabolomics. AB - Nuclear magnetic resonance (NMR)-based metabolomics relies mostly on 1D NMR; however, the technique is limited by overlap of the signals from the metabolites. In order to circumvent this problem, 2D 1H-13C correlation spectroscopy techniques are often used. However owing to poorer natural abundance and gyromagnetic ratio of 13C, the acquisition time for 2D 1H-13C heteronuclear single quantum coherence spectroscopy (HSQC) is long. This makes it almost impossible to be used in high throughput study. We have reported the application of selective optimized flip angle short transient (SOFAST) technique coupled to heteronuclear multiple quantum correlation (HMQC) along with nonlinear sampling (NUS) in urine and serum samples. This technique takes sevenfold less experimental time than the conventional 1H-13C HSQC experiment with retention of almost all molecular information. Hence, this can be used for high throughput study. Graphical abstract SOFAST-HMQC is a two-dimensional NMR technique that significantly decreases experimental time without loss of information. This technique is applied in complex biofluid samples that are used for high throughput metabolomics studies and shows promise of better information recovery than conventional two-dimensional NMR technique in shorter time. PMID- 29030665 TI - Development and validation of a simple, rapid and sensitive LC-MS/MS method for the measurement of urinary neurotransmitters and their metabolites. AB - Neurotransmitters play crucial roles in physiological functions and their imbalances have demonstrated association in the pathology of several diseases. The measurement of neurotransmitters possesses a great potential as a significant clinical tool. This study presents the development and validation of an LC-MS/MS method for simultaneous quantification of multi-class neurotransmitters associated with dopamine, tryptophan and glutamate-gamma-aminobutyric acid pathways. A total of ten neurotransmitters and their metabolites (dopamine, epinephrine, metanephrine, tryptophan, serotonin, kynurenic acid, kynurenine, anthranilic acid, GABA, glutamic acid) were determined based on a simple and rapid 'dilute and shoot' method using minimal urine volume. The chromatographic separation was achieved using a Poroshell 120 Bonus-RP LC Column in combination with a gradient elution within an 8.5-min time frame. The method exhibited good sensitivity as the limits of quantification ranged between 0.025 and 0.075 MUg/mL with acceptable matrix effects (< +/- 14.5%), no carryover and good linearity (r 2 > 0.98). The accuracy and precision for all analytes were within tolerances, at < +/- 9.9% mean relative error (MRE) and < 8.6% relative standard deviation (RSD), respectively. The method was successfully applied in measuring the neurotransmitter concentrations in urine of healthy donors. Furthermore, the undertaken stability experiments indicated that acidified urine specimens allowed the analytes to be stable for prolonged durations in comparison to those untreated. The study also reveals the performance of the method is unaffected by the absence of expensive deuterated reference standards under the experimental conditions employed which further simplifies the analytical procedures and provides a significant cost saving for running the assay. Graphical abstract The quantification of multi-class neurotransitters associated with the dopamine, tryptophan and GABA-glutamate pathways using a simple 'dilute and shoot' LC-MS/MS method. PMID- 29030666 TI - LC-PDA/APCIitMS identification of algal carotenoid and oxysterol precursors to fatty acid esters in hydrolyzed extracts of the freshwater mussel Dreissena bugensis. AB - Carotenyl fatty acid esters (carotenyl-FAEs) were extracted in acetone from freeze-dried Dreissena bugensis (Lakes Erie and Ontario) and hydrolyzed to identify the carotenoid precursors. Analysis by liquid chromatography (LC) with photodiode array (PDA) and atmospheric pressure chemical ionization-ion trap mass spectrometry (APCIitMS) revealed the major hydrolysis products: fucoxanthinol (FOH) from fucoxanthin (FX, diatoms); mactraxanthin (MX) from violaxanthin (VX, chlorophytes); 4-fold higher levels of an unknown, tentatively identified as an adduct of two closely eluting C27H46O3 and C27H48O3 steryl triols. Enzymatic hydrolysis (Candida rugosa) of dreissenid extracts yielded FOH and MX, but residual carotenyl-FAEs remained. Alkaline hydrolysis yielded isoFOH, MX, and steryl triols, without residual carotenyl-FAEs: isoFOH decreased, but two FOH hemiketal by-products increased, when the dose of potassium hydroxide in methanol was too high. The PDA detector profiled carotenyl-FAEs and products of enzymatic and alkaline hydrolysis, without interference. The APCIitMS detector revealed carotenoid and oxysterol products of alkaline hydrolysis but was adversely affected by background from bile salts used for enzymatic hydrolysis. LC retention times and elution order were correlated to solubility parameters, calculated from the analyte structure, to cross-check MS interpretations. A multiple linear regression of LC retention times on solubility parameters for 12 carotenoid standards included FOH, isoFOH, and MX (r 2 0.97). The model revealed the close similarity of polar carotenoid metabolites to C27-steryl triols tentatively identified by APCIitMS, suggesting that further LC-MS analyses would be beneficial, to explicitly link oxysterols and the polar carotenoids, as metabolites of algal precursors in the dreissenid diet. Graphical abstract Methods of analysis and major neutral products of hydrolysis from fatty acid esters in D. bugensis. PMID- 29030667 TI - Sampling and analyte enrichment strategies for ambient mass spectrometry. AB - Ambient mass spectrometry provides great convenience for fast screening, and has showed promising potential in analytical chemistry. However, its relatively low sensitivity seriously restricts its practical utility in trace compound analysis. In this review, we summarize the sampling and analyte enrichment strategies coupled with nine modes of representative ambient mass spectrometry (desorption electrospray ionization, paper vhspray ionization, wooden-tip spray ionization, probe electrospray ionization, coated blade spray ionization, direct analysis in real time, desorption corona beam ionization, dielectric barrier discharge ionization, and atmospheric-pressure solids analysis probe) that have dramatically increased the detection sensitivity. We believe that these advances will promote routine use of ambient mass spectrometry. Graphical abstract Scheme of sampling stretagies for ambient mass spectrometry. PMID- 29030668 TI - Desktop NMR spectroscopy for real-time monitoring of an acetalization reaction in comparison with gas chromatography and NMR at 9.4 T. AB - Monitoring of chemical reactions in real-time is in demand for process control. Different methods such as gas chromatography (GC), mass spectroscopy, infrared spectroscopy, and nuclear magnetic resonance (NMR) are used for that purpose. The current state-of-the-art compact NMR systems provide a useful method to employ with various reaction conditions for studying chemical reactions inside the fume hood at the chemical workplace. In the present study, an acetalization reaction was investigated with compact NMR spectroscopy in real-time. Acetalization is used for multistep synthesis of the variety of organic compounds to protect particular chemical groups. A compact 1 T NMR spectrometer with a permanent magnet was employed to monitor the acid catalyzed acetalization of the p nitrobenzaldehyde with ethylene glycol. The concentrations of both reactant and product were followed by peak integrals in single-scan 1H NMR spectra as a function of time. The reaction conditions were varied in terms of temperature, agitation speed, catalyst loading, and feed concentrations in order to determine the activation energy with the help of a pseudo-homogeneous kinetic model. For low molar ratios of aldehyde and glycol, the equilibrium conversions were lower than for the stoichiometric ratio. Increasing catalyst concentration leads to faster conversion. The data obtained with low-field NMR spectroscopy were compared with data from GC and NMR spectroscopy at 9.4 T acquired in batch mode by extracting samples at regular time intervals. The reaction kinetics followed by either method agreed well. The activation energies for forward and backward reactions were determined by real-time monitoring with compact NMR at 1 T were 48 +/- 5 and 60 +/- 4 kJ/mol, respectively. The activation energies obtained with gas chromatography for forward and backward reactions were 48 +/- 4 and 51 +/- 4 kJ/mol. The equilibrium constant decreases with increasing temperature as expected for an exothermic reaction. The impact of dense sampling with online NMR and sparse sampling with GC was observed on the kinetic outcome using the same kinetic model. Graphical abstract Acetalization reaction kinetics were monitored with real-time desktop NMR spectroscopy at 1 T. Each data point was obtained at regular intervals with a single shot in 15 s. The kinetics was compared with sparsely sampled data obtained with GC and NMR at 9.4 T. PMID- 29030669 TI - Sol-gel-based SPME fiber as a reliable sampling technique for studying biogenic volatile organic compounds released from Clostridium tetani. AB - A novel and efficient headspace solid-phase microextraction (HS-SPME) method, followed by gas chromatography mass spectrometry (GC-MS), was developed to study volatile organic compounds (VOCs) emerging from microorganisms. Two homemade SPME fibers, a semi-polar poly (dimethylsiloxane) (PDMS) fiber, and a polar polyethylene glycol (PEG) fiber, along with two commercial fibers (PDMS and PDMS/DVB) were used to collect VOCs emerging from Clostridium tetani which was cultured in different media. The adsorbed VOCs were desorbed and identified, in vitro, using GC-MS. The adsorption efficiency was improved by optimizing the time duration of adsorption and desorption. About 50 components were identified by the proposed method. The main detected compounds appeared to be sulfur containing compounds such as butanethioic acid S-methyl ester, dimethyl trisulfide, and dimethyl tetrasulfide. These volatile sulfur containing compounds are derived from amino acids containing the sulfur element, which probably coexist in the mentioned bacterium or are added to the culture media. The developed HS-SPME-GC MS method allowed the determination of the chemical fingerprint of Clostridium tetani volatile constituents, and thus provides a new, simple, and reliable tool for studying the growth of microorganisms. Graphical abstract Investigation of biogenic VOCs released from Clostridium tetani using SPME-GC-MS. PMID- 29030670 TI - Ultra-high-performance supercritical fluid chromatography with quadrupole-time-of flight mass spectrometry (UHPSFC/QTOF-MS) for analysis of lignin-derived monomeric compounds in processed lignin samples. AB - The conversion of lignin to potentially high-value low molecular weight compounds often results in complex mixtures of monomeric and oligomeric compounds. In this study, a method for the quantitative and qualitative analysis of 40 lignin derived compounds using ultra-high-performance supercritical fluid chromatography coupled to quadrupole-time-of-flight mass spectrometry (UHPSFC/QTOF-MS) has been developed. Seven different columns were explored for maximum selectivity. Makeup solvent composition and ion source settings were optimised using a D-optimal design of experiment (DoE). Differently processed lignin samples were analysed and used for the method validation. The new UHPSFC/QTOF-MS method showed good separation of the 40 compounds within only 6-min retention time, and out of these, 36 showed high ionisation efficiency in negative electrospray ionisation mode. Graphical abstract A rapid and selective method for the quantitative and qualitative analysis of 40 lignin-derived compounds using ultra-high-performance supercritical fluid chromatography coupled to quadrupole-time-of-flight mass spectrometry (UHPSFC/QTOF-MS). PMID- 29030671 TI - Graphene-based label-free electrochemical aptasensor for rapid and sensitive detection of foodborne pathogen. AB - Reduced graphene oxide (rGO) has emerged as a promising nanomaterial for reliable detection of pathogenic bacteria due to its exceptional properties such as ultrahigh electron transfer ability, large surface to volume ratio, biocompatibility, and its unique interactions with DNA bases of the aptamer. In this study, rGO-azophloxine (AP) nanocomposite aptasensor was developed for a sensitive, rapid, and robust detection of foodborne pathogens. Besides providing an excellent conductive and soluble rGO nanocomposite, the AP dye also acts as an electroactive indicator for redox reactions. The interaction of the label-free single-stranded deoxyribonucleic acid (ssDNA) aptamer with the test organism, Salmonella enterica serovar Typhimurium (S. Typhimurium), was monitored by differential pulse voltammetry analysis, and this aptasensor showed high sensitivity and selectivity for whole-cell bacteria detection. Under optimum conditions, this aptasensor exhibited a linear range of detection from 108 to 101 cfu mL-1 with good linearity (R 2 = 0.98) and a detection limit of 101 cfu mL-1. Furthermore, the developed aptasensor was evaluated with non-Salmonella bacteria and artificially spiked chicken food sample with S. Typhimurium. The results demonstrated that the rGO-AP aptasensor possesses high potential to be adapted for the effective and rapid detection of a specific foodborne pathogen by an electrochemical approach. Graphical abstract Fabrication of graphene-based nanocomposite aptasensor for detection of foodborne pathogen. PMID- 29030672 TI - Interference-free determination of sub ng kg-1 levels of long-lived 93Zr in the presence of high concentrations (MUg kg-1) of 93Mo and 93Nb using ICP-MS/MS. AB - Long-lived high abundance radionuclides are of increasing interest with regard to decommissioning of nuclear sites and longer term nuclear waste storage and disposal. In many cases, no routine technique is available for their measurement in nuclear waste and low-level (ng kg-1) environmental samples. Recent advances in ICP-MS technology offer attractive features for the selective and sensitive determination of a wide range of long-lived radionuclides. In this work, inductively coupled plasma-tandem mass spectrometry (ICP-MS/MS)-based methodology, suitable for accurate routine determinations of 93Zr at very low (ng kg-1) levels in the presence of high levels (MUg kg-1) of the isobaric interferents 93Nb and 93Mo (often present in nuclear waste samples), is reported for the first time. Additionally, a novel and systematic strategy for method development based on the use of non-radioactive isotopes is proposed. It relies on gas-phase chemical reactions for different molecular ion formation to achieve isobaric interference removal. Using cell gas mixtures of NH3/He/H2 or H2/O2, and suitable mass shifts, the signal from the 93Nb and 93Mo isobaric interferences on 93Zr were suppressed by up to 5 orders of magnitude. The achieved limit of detection for 93Zr was 1.3 * 10-5 Bq g-1 (equivalent to 0.14 ng kg-1). The sample analysis time is 2 min, which represents a significant improvement in terms of sample throughput, compared to liquid scintillation counting methods. The method described here can be used for routine measurements of 93Zr at environmentally relevant levels. It can also be combined with radiometric techniques for use towards the standardisation of 93Zr measurements. Graphical abstract Interference free determination of 93Zr in the presence of high concentrations of isobaric 93Mo and 93Nb by ICP-MS/MS. PMID- 29030673 TI - PRIMUM NON NOCERE: now and again an echo of DPD with capecitabine. PMID- 29030674 TI - Magnetic Resonance Neurography : Normal Values and Demographic Determinants of Nerve Caliber and T2 Relaxometry in 60 healthy individuals. AB - PURPOSE: To establish normal values and to identify demographic determinants of quantitative biomarkers in magnetic resonance neurography (MRN). METHODS: In this study 60 healthy individuals (5 men and 5 women of every decade between 20 and 80 years) were examined according to a standardized MRN protocol at 3 T, including multiecho T2 relaxometry. Nerve cross-sectional area (CSA), transverse relaxation time (T2), and proton spin density (PSD) were assessed for the sciatic, tibial, median, ulnar, and radial nerves. Correlation with demographic variables, such as height, weight, body mass index (BMI), and age was expressed by Pearson coefficients and t-tests were used to compare MRN biomarkers between men and women with and without normalization to body weight and BMI by linear regression. RESULTS: The average nerve CSA correlated moderately with height (r = 0.28, p = 0.04), weight (r = 0.40, p = 0.002), and BMI (r = 0.35, p = 0.008), but not with age (r = 0.23, p = 0.09). While T2 did not correlate with demographic parameters, PSD was strongly inversely associated with BMI (r = -0.64, p < 0.001) and weight (r = -0.557, p < 0.001). Sex-dependent differences in imaging marker values were found for CSA but became negligible after normalization to body weight. CONCLUSION: Quantitative biomarkers of MRN co-vary with demographic variables. As particularly important determinants, we identified body weight for nerve CSA and BMI for PSD. The presented normal values and demographic determinants may assist investigations into the potential of MRN biomarkers in further disease-specific studies. PMID- 29030675 TI - Evaluation of Prognostic Factors for Esophageal Squamous Cell Carcinoma Treated with Neoadjuvant Chemoradiotherapy Followed by Surgery. AB - BACKGROUND: Intensive trimodality therapy is needed for locally advanced esophageal squamous cell carcinoma (ESCC). However, some patients develop recurrence and die of cancer even after trimodality therapy. METHODS: We evaluated prognostic factors based on data from 125 patients with ESCC who underwent neoadjuvant chemoradiotherapy (NCRT) comprising concurrent chemotherapy and 40 Gy of radiation, followed by curative-intent esophagectomy. RESULTS: Thirty-four (27.2%) patients achieved a pathological complete response (pCR) after NCRT. The 5-year recurrence-free (RFS) and overall survival (OS) rates of all patients were 49.2 and 52.9%, respectively, and were significantly better for patients with pCR than without pCR (p = 0.01 and 0.02, respectively). Univariate and multivariate analyses selected performance status [PS 0 vs. 1: hazard ratio (HR) 2.05; 95% confidence interval (CI) 1.30-4.84; p = 0.01] and ypN (0 vs. 1: HR 2.33; 95% CI 1.12-4.84; p = 0.02; 0 vs. 2/3: HR 3.73; 95% CI 1.68-8.28; p = 0.001) as independent covariates for RFS. Furthermore, PS (0 vs. 1; HR 2.94; 95% CI 1.51-5.72; p = 0.002) and ypN (0 vs. 1; HR 2.26; 95% CI 1.09-4.69; p = 0.03; 0 vs. 2/3: HR 3.90; 95% CI 1.79-8.48; p = 0.001) were also independent covariates for OS. CONCLUSIONS: Performance status 1 and ypN+ were significantly associated with a poor prognosis after trimodality therapy for ESCC. PMID- 29030676 TI - Papillary Thyroid Carcinoma (PTC) in Children and Adults: Comparison of Initial Presentation and Long-Term Postoperative Outcome in 4432 Patients Consecutively Treated at the Mayo Clinic During Eight Decades (1936-2015). AB - BACKGROUND: Contemporary guidelines for managing PTC advise an approach wherein primary tumor and regional metastases (RM) are completely resected at first surgery and radioiodine remnant ablation (RRA) is restricted to high-risk patients, policies our group has long endorsed. To assess our therapeutic efficacy, we studied 190 children and 4242 adults consecutively treated during 1936-2015. SUBJECTS AND METHODS: Mean follow-up durations for children and adults were 26.9 and 15.2 years, respectively. Bilateral lobar resection was performed in 86% of children and 88% of adults, followed by RRA in 30% of children and 29% of adults; neck nodes were excised in 86% of children and 66% of adults. Tumor recurrence (TR) and cause-specific mortality (CSM) details were taken from a computerized database. RESULTS: Children, when compared to adults, had larger primary tumors which more often were grossly invasive and incompletely resected. At presentation, children, as compared to adults, had more RM and distant metastases (DM). Thirty-year TR rates were no different in children than adults at any site. Thirty-year CSM rates were lower in children than adults (1.1 vs. 4.9%; p = 0.01). Comparing 1936-1975 (THEN) with 1976-2015 (NOW), 30-year CSM rates were similar in MACIS <6 children (p = 0.67) and adults (p = 0.08). However, MACIS <6 children and adults in 1976-2015 had significantly higher recurrence at local and regional, but not at distant, sites. MACIS 6+ adults, NOW, compared to THEN, had lower 30-year CSM rates (30 vs. 47%; p < 0.001), unassociated with decreased TR at any site. CONCLUSIONS: Children, despite presenting with more extensive PTC when compared to adults, have postoperative recurrences at similar frequency, typically coexist with DM and die of PTC less often. Since 1976, both children and adults with MACIS <6 PTC have a <1% chance at 30 years of CSM; adults with higher MACIS scores (6 or more) have a 30-year CSM rate of 30%. PMID- 29030677 TI - Safe Surgery for All: Early Lessons from Implementing a National Government Driven Surgical Plan in Ethiopia. AB - Recognizing the unmet need for surgical care in Ethiopia, the Federal Ministry of Health (FMOH) has pioneered innovative methodologies for surgical system development with Saving Lives through Safe Surgery (SaLTS). SaLTS is a national flagship initiative designed to improve access to safe, essential and emergency surgical and anaesthesia care across all levels of the healthcare system. Sustained commitment from the FMOH and their recruitment of implementing partners has led to notable accomplishments across the breadth of the surgical system, including but not limited to: (1) Leadership, management and governance-a nationally scaled surgical leadership and mentorship programme, (2) Infrastructure-operating room construction and oxygen delivery plan, (3) Supplies and logistics-a national essential surgical procedure and equipment list, (4) Human resource development-a Surgical Workforce Expansion Plan and Anaesthesia National Roadmap, (5) Advocacy and partnership-strong FMOH partnership with international organizations, including GE Foundation's SafeSurgery2020 initiative, (6) Innovation-facility-driven identification of problems and solutions, (7) Quality of surgical and anaesthesia care service delivery-a national peri-operative guideline and WHO Surgical Safety Checklist implementation, and (8) Monitoring and evaluation-a comprehensive plan for short term and long-term assessment of surgical quality and capacity. As Ethiopia progresses with its commitment to prioritize surgery within its Health Sector Transformation Plan, disseminating the process and outcomes of the SaLTS initiative will inform other countries on successful national implementation strategies. The following article describes the process by which the Ethiopian FMOH established surgical system reform and the preliminary results of implementation across these eight pillars. PMID- 29030678 TI - Clock-Drawing Test as a Bedside Assessment of Post-operative Delirium Risk in Elderly Patients with Accidental Hip Fracture. AB - BACKGROUND: Currently applied cognitive tests for assessing the risk of post operative delirium require time and specialised medical staff, in addition to the patients' mental strain. We investigated the four-point scoring Clock-Drawing Test (CDT-4) as a preoperative independent predictor for post-operative delirium. METHODS: A total of 100 consecutive patients aged over 65 years admitted for accidental hip fracture were assessed for delirium using the Confusion Assessment Method Scale. The cognitive function was rated with mini-mental state examination, Montreal Cognitive Assessment Scale (MoCA), and CDT-4. Descriptive statistics were performed, and a logistic regression model for post-operative delirium was applied. RESULTS: Out of the 100 enrolled patients 98 underwent hip repair surgery and 65 (66%) had post-operative delirium, with 24 (42%) incident cases. The median (IQR) ages were 78 (72-83) and 84 (80-87) years for the non delirium and post-operative delirium groups, respectively. The logistic regression concluded with age and CDT-4 as independent preoperative predictors, while controlling for gender, pre-surgery delirium, MoCA visual, and MoCA attention: OR 1.32 [95% CI (1.099-1.585); p = 0.003] for age; OR 0.153 [95% CI (0.033-0.719); p = 0.017] for CDT-4. CONCLUSIONS: Employing CDT-4 as a bedside assessment of delirium risk may help to preoperatively stratify and prioritise the patients for preventive perioperative care in a timely manner. PMID- 29030679 TI - Correction to: A Global Assessment of Access to and Use of Medical Information: The State of Evidence-Based Surgery. AB - In the original article some funding information was inadvertently omitted. The complete funding information is as follows. PMID- 29030680 TI - [Modern non-cosmetic treatment with botulinum toxins]. AB - Botulinum toxin has been known in medical history for a long time. The first scientific investigations and thoughts on possible indications in the treatment of muscular disorders were published by the German physician and poet Justinus Kerner in 1822. The physiological effect of botulinum toxin was identified in the middle of the twentieth century and the first clinical use was reported in 1977. It was first used in ophthalmology for the correction of strabismus and some years later the therapy of blepharospasm and cervical dystonia was established. Further indications, all supported by randomized controlled studies, are spastic tone increase of the limbs after lesions of the central nervous system, idiopathic axillar hyperhidrosis, chronic migraine and neurogenic or idiopathic bladder hyperactivity. In addition to these indications, a large number of further possible options have been published in the literature. Beside its effect on transmission at the neuromuscular synapses, botulinum toxin has also been shown to affect the sensory transmission of nociceptive fibers. PMID- 29030683 TI - Preoperative alkaline phosphatase elevation was associated with poor survival in colorectal cancer patients. AB - PURPOSE: Purpose To assess preoperative serum alkaline phosphatase (ALP) levels in colon adenocarcinomapatients with various clinical features and determine its prognostic value. METHODS: Between 2000 and 2013, 10,800 stage I-IV colon cancer patients who underwent surgery wereretrospectively enrolled. The relationship between ALP level and variables, including age, gender,carcinoembryonic Antigen (CEA) levels, aspartate aminotransferase (AST) level, bilirubin level, tumor size,liver cirrhosis, hepatitis, albumin level, histological type, and TNM-stage, were evaluated. The impact of ALP level elevation on survival was evaluated. RESULTS: Significant elevations in ALP level were found in patients with CEA >=5 ng/ml (p<0.001); AST |>=43 U/L (p<0.001); total bilirubin >=1.5 U/L (p<0.001); liver cirrhosis (p<0.001); albumin; <3.5g/dL (p <0.001); and stage IV disease (p=0.03).Patients with elevated ALP levels had significantly worse 5-year overall survival (OS) for colon (5-year OSrate: 71.5% vs. 78.3%, p<0.001; Fig. 1a) and rectal (5-year OS rate: 64.5% vs. 72.3%, p<0.001; Fig. 1b)cancer than patients with normal ALP levels. CONCLUSIONS: Elevated preoperative ALP levels was not only associated with liver disease, but it was alsorelated with advanced tumor status, and indicated a poor survival in colon and rectal cancer patients. PMID- 29030684 TI - [Prevention of falls and fall-related injuries : Personal balance and future tasks]. PMID- 29030685 TI - Combined effects of varicocele and cell phones on semen and hormonal parameters. AB - BACKGROUND: The objective of this study was to evaluate if there is a combined effect of varicocele and cell phone storage in trousers pockets on semen and hormonal parameters. METHODS: A retrospective analysis of 468 men attending an infertility clinic from 1993-2007 was performed. Varicoceles were determined by clinical examination and patients were questioned on cell phone usage and storage fashion. Semen samples were analyzed according to the World Health Organization (WHO) guidelines of 1999. Serum testosterone, luteinizing hormone (LH) and follicle stimulating hormone (FSH) were assessed. RESULTS: There was a significant effect of cell phone storage in trousers pockets and varicocele in multivariate analysis (both p < 0.001). Varicocele showed an effect on sperm concentration (p = 0.003), LH (p = 0.014) and testosterone (p = 0.003). Compared to grade 1, grade 2 varicoceles showed a difference in sperm concentration (p = 0.004). Regarding testosterone differences were shown for grade 3 versus grade 1 (p = 0.002) and grade 3 compared to grade 2 (p = 0.003). Cell phone storage in trousers pockets showed an influence on the percentage of normal sperm morphology and LH (both p < 0.001). Varicocele and cell phone storage in trousers pockets did not show a combined effect (p = 0.76). CONCLUSIONS: This analysis showed an inverse relation between sperm concentration and degree of varicocele, with lower concentrations in higher grade varicoceles. Testosterone was significantly higher in higher grade varicoceles, which could reflect a compensatory mechanism to the impaired testicular function. Cell phone storage in trousers pockets showed an effect on LH and sperm morphology. A combined effect of varicocele and cell phone storage in trousers pockets was not detected. PMID- 29030686 TI - Blood mercury concentration in relation to metabolic and weight phenotypes using the KNHANES 2011-2013 data. AB - PURPOSE: We assessed the association of blood mercury concentration with metabolic and weight phenotypes. METHODS: Blood mercury concentration, metabolic syndrome components, and body mass index (BMI) were measured in 6006 Korean adults (2963 men, 3043 women, mean age 44.7 +/- 14.7 years), using the 2011-2013 Korean National Health and Nutrition Examination Survey data. Metabolic and weight phenotypes were classified based on BMI and metabolic syndrome (MetS) presence as metabolically healthy and normal weight (MHNW), metabolically unhealthy and normal weight (MUNW), metabolically healthy and obese (MHO), and metabolically unhealthy and obese (MUO). RESULTS: The geometric mean of blood mercury concentration was 3.37 MUg/L (95% CI 3.32-3.43). A higher quartile of blood mercury concentration was associated with older age, male sex, higher education, alcohol use, current smoking, low physical activity, greater energy intake, and hypertension history. After adjusting for confounding factors (age, sex, education, income, health behaviors, and energy intake), blood mercury concentration tended to increase across the MHNW, MUNW, MHO, and MUO groups in all subjects and each sex (P for trend < 0.01). Compared to the lowest mercury quartile group, adjusted odds ratios (95% CI) for MHO and MUO in those with the highest mercury quartile were, respectively, 1.67 (1.34, 2.09) and 2.02 (1.59, 2.56) in all subjects: 1.58 (1.25, 1.99) and 1.72 (1.37, 2.16) for men; 1.33 (0.94, 1.88) and 1.90 (1.34, 2.70) for women. CONCLUSIONS: Blood mercury concentration was associated with both metabolic syndrome and obesity, and the association was dose dependent across metabolic and weight phenotypes. PMID- 29030687 TI - Tolerability of Bisoprolol on Domiciliary Spirometry in COPD. AB - We investigated if serial domiciliary measures of spirometry were sensitive at detecting subtle effects of beta-2 blockade associated with bisoprolol in (n = 17) patients with COPD. After a two-week run in on inhaled corticosteroid (ICS) and long acting beta-2 agonist (LABA): beclometasone/formoterol 100/6 ug, patients' started additional a long acting muscarinic receptor antagonist: (LAMA) Tiotropium 18 ug, with concomitant weekly dose titration of bisoprolol: 1.25-2.5 5 mg. After a further week of bisoprolol 5 mg, they were stepped back down to (ICS/LABA) for one week. Mean age was 64 years, mean FEV1 52% predicted, and mean FEV1/FVC ratio of 0.46. Compared to baseline am FEV1 of 1.38 L (95% CI 1.14-1.61 L), both ICS/LABA/LAMA and ICS/LABA in conjunction with bisoprolol showed statistically significant mean falls of 100 ml (1.28 L, 95% CI 1.03-1.53 L), and 120 ml, respectively (1.26 L, 95% CI 1.01-1.51 L); equalling and exceeding the MCID of 100 ml, respectively. These changes were disconnected from symptoms, reliever use and oxygen saturation. PMID- 29030689 TI - The neurological outcome of radiotherapy versus surgery in patients with metastatic spinal cord compression presenting with myelopathy. AB - PURPOSE: While radiotherapy is generally an acceptable treatment for metastatic spinal cord compression, surgical intervention is controversial due to the invasiveness and diversity of diseases in the patients being considered. The ideal treatment, therefore, depends on the situation, and the most acute treatment possible is necessary in patients presenting with myelopathy. We compared the neurological outcomes between radiotherapy and surgery in patients with metastatic spinal cord compression presenting with myelopathy. METHODS: A total 54 patients with metastatic spinal cord compression presenting with myelopathy treated in our institution between 2006 and 2016 were analyzed retrospectively. Twenty patients were selected by radiotherapy alone (radiation group), and 36 patients were selected by decompression and stabilization surgery with or without radiotherapy (surgery group). The neurological outcomes and complications were compared between the two treatment groups. RESULTS: Seven patients initially in the radiation group underwent surgery because of a substantial decline in their motor strength during radiotherapy. One of the remaining 13 patients (8%) in the radiation group and 30 of the 34 patients (88%) in the surgery group showed improvement in their neurological symptoms (P < 0.01). One patient (8%) in the radiation group and 21 patients (62%) in the surgery group were ambulatory after treatment (P < 0.01). There were no major complications related to radiotherapy, but surgery-related complications occurred in 9 of 34 (26%) patients, and 6 (18%) patients needed reoperation. CONCLUSIONS: Surgical decompression and stabilization may be required to improve the neurological function in patients with metastatic spinal cord compression presenting with myelopathy. However, the high rate of complications associated with surgery should be taken into consideration. PMID- 29030690 TI - Michelangelo Gangemi (1949-2017). PMID- 29030688 TI - Neurotrophic function of phytochemicals for neuroprotection in aging and neurodegenerative disorders: modulation of intracellular signaling and gene expression. AB - Bioactive compounds in food and beverages have been reported to promote health and prevent age-associated decline in cognitive, motor and sensory activities, and emotional function. Phytochemicals, a ubiquitous class of plant secondary metabolites, protect neuronal cells by interaction with cellular activities, in addition to the antioxidant and anti-inflammatory function. In aging and age associated neurodegenerative disorders, phytochemicals protect neuronal cells by neurotrophic factor-mimic activity, in addition to suppression of apoptosis signaling in mitochondria. This review presents the cellular mechanisms underlying anti-apoptotic function and neurotrophic function of phytochemicals in the brain. Phytochemicals bind to receptors of neurotrophic factors, and also receptors for gamma-aminobutyric acid, acetylcholine, serotonin, and glutamate and estrogen, and activate downstream signal pathways. Phytochemicals also directly intervene intracellular signaling molecules to modify the brain function. Finally, phytochemicals enhance the endogenous biosynthesis of genes coding anti-apoptotic Bcl-2 and neurotrophic factors, such as brain-derived and glial cell line-derived neurotrophic factor. The gene induction may play a major role in the neuroprotective function of dietary compounds shown by epidemiological studies. Quantitative measurement of neurotrophic factors induced by phytochemicals in the serum, cerebrospinal fluid, and other clinical samples is proposed as a surrogate assay method to evaluate the neuroprotective potency. Development of novel neuroprotective compounds is expected among compounds chemically synthesized from the brain-permeable basic structure of phytochemicals. PMID- 29030692 TI - Changes in aqueous concentrations of various cytokines after intravitreal bevacizumab and subtenon triamcinolone injection for diabetic macular edema. AB - PURPOSE: The purpose of this study was to compare the changes in the aqueous cytokine levels after intravitreal bevacizumab with those after combined intravitreal bevacizumab and subtenon triamcinolone injection in diabetic macular edema (DME). METHODS: This study examined 24 eyes of 23 patients with DME. Each patient with DME received randomly either an intravitreal injection of bevacizumab (IVBe) or IVBe with a subtenon triamcinolone injection (IVBe + STTA). Best corrected visual acuity and foveal thickness were evaluated and aqueous samples were obtained before and 4 weeks after the injection. The aqueous concentrations of interleukin (IL)-6, IL-8, interferon-induced protein (IP)-10, monocyte chemotactic protein (MCP)-1, platelet-derived growth factor (PDGF)-AA, and vascular endothelial growth factor (VEGF) were measured using a multiplex bead assay. RESULTS: After the injection, the foveal thickness decreased more in the IVBe + STTA group than in the IVBe group (P = 0.042). The MCP-1, PDGF-AA, and VEGF levels decreased significantly in the IVBe + STTA group (p = 0.013, p = 0.004 and p = 0.018 respectively), but only the VEGF level decreased in the IVBe group (p = 0.001). IL-8 was significantly increased in the IVBe + STTA group (p = 0.003) but the changes in the VEGF levels were smaller than in the IVBe group (p = 0.025). CONCLUSION: Intravitreal bevacizumab and subtenon triamcinolone injection reduces the VEGF, MCP-1 and PDGF-AA levels and increases the IL-8 level in the plural cytokine profiles of patients with DME, which might explain the limited therapeutic effect of combination therapy. PMID- 29030693 TI - Funaria hygrometrica Hedw. elevated tolerance to D2O: its use for the production of highly deuterated metabolites. AB - MAIN CONCLUSION: The method introduced here to grow F. hygrometrica in high concentrations of D 2 O is an excellent alternative to produce highly deuterated metabolites with broad applications in metabolic studies. Our mass spectrometry experiments strongly indicate the successful incorporation of deuterium into organic compounds. Deuterated metabolites are useful tracers for metabolic studies, yet their wide utilization in research is limited by the multi-step total synthesis required to produce them in the laboratory. Alternatively, deuterated metabolites can be obtained from organisms grown in D2O or deuterated nutrients. This approach also has limitations as D2O in high concentrations negatively affects the survival of most organisms. Here we report the moss Funaria hygrometrica as an unusual high tolerant to D2O in liquid culture. We found that this moss is able to grow in up to 90% D2O, a condition lethal for many eukaryotes. Mass spectrometric analyses of F. hygrometrica extracts showed a strong deuteration pattern. The ability to tolerate high concentrations of D2O together with the development of a rich molecular toolbox makes F. hygrometrica an ideal system for the production of valuable deuterated metabolites. PMID- 29030694 TI - Peer status in relation to psychotic experiences and psychosocial problems in adolescents: a longitudinal school-based study. AB - Social exclusion is related to many adverse mental health outcomes and may be particularly harmful for mental health in adolescence when peer relations become very important. This study examined associations between low peer status and psychotic experiences, psychosocial problems and short-term courses of these symptoms. A school-based sample of adolescents (N = 1171) was investigated in 2 consecutive years using the 16-item Prodromal Questionnaire and the self-report and teacher-report version of the Strengths and Difficulties Questionnaire (SDQ). Peer status was measured in the second year with positive and negative peer nominations of classmates. Low peer status was, after adjusting for gender, ethnic minority status and level of education, associated with more psychosocial difficulties with a persistent course and a higher level of psychotic experiences. Of all peer status groups, being neglected had the strongest associations with mental health problems. The results of this study show that social exclusion in adolescence is related to psychotic experiences and psychosocial problems, emphasizing the importance of belonging to a social group. Customized prevention programs at individual, family and school level should target causes and consequences of social exclusion. PMID- 29030695 TI - Erratum to: Greater occipital nerve infiltration under MR guidance: Feasibility study and preliminary results. AB - The original version of this article, published on 12 July 2017, unfortunately contained mistakes. The following corrections have therefore been made in the original. PMID- 29030696 TI - Superposed epoch analysis of physiological fluctuations: possible space weather connections. AB - There is a strong connection between space weather and fluctuations in technological systems. Some studies also suggest a statistical connection between space weather and subsequent fluctuations in the physiology of living creatures. This connection, however, has remained controversial and difficult to demonstrate. Here we present support for a response of human physiology to forcing from the explosive onset of the largest of space weather events-space storms. We consider a case study with over 16 years of high temporal resolution measurements of human blood pressure (systolic, diastolic) and heart rate variability to search for associations with space weather. We find no statistically significant change in human blood pressure but a statistically significant drop in heart rate during the main phase of space storms. Our empirical findings shed light on how human physiology may respond to exogenous space weather forcing. PMID- 29030697 TI - Geomagnetic storm under laboratory conditions: randomized experiment. AB - The influence of the previously recorded geomagnetic storm (GS) on human cardiovascular system and microcirculation has been studied under laboratory conditions. Healthy volunteers in lying position were exposed under two artificially created conditions: quiet (Q) and storm (S). The Q regime playbacks a noise-free magnetic field (MF) which is closed to the natural geomagnetic conditions on Moscow's latitude. The S regime playbacks the initially recorded 6 h geomagnetic storm which is repeated four times sequentially. The cardiovascular response to the GS impact was assessed by measuring capillary blood velocity (CBV) and blood pressure (BP) and by the analysis of the 24-h ECG recording. A storm-to-quiet ratio for the cardio intervals (CI) and the heart rate variability (HRV) was introduced in order to reveal the average over group significant differences of HRV. An individual sensitivity to the GS was estimated using the autocorrelation function analysis of the high-frequency (HF) part of the CI spectrum. The autocorrelation analysis allowed for detection a group of subjects of study which autocorrelation functions (ACF) react differently in the Q and S regimes of exposure. PMID- 29030698 TI - Biliary atresia and liver transplantation: results and thoughts for primary liver transplantation in select patients. AB - Biliary atresia (BA) is one of the most common indications for liver transplantation in children. Despite advances in biliary atresia surgical techniques, most children will ultimately require liver transplantation. Possible pre-operative predictors of outcome after the Kasai operation are: 1. Age at operation 2. Presence of the biliary atresia splenic malformation syndrome (BASM) 3. Center specific factors 4. Liver histology and 5. Anatomic pattern of bile ducts found at surgery.Age at surgery is considered a strong predictor of success after portoenterostomy. In a recent study, age of 75 days or more at surgery was associated with less frequent resolution of jaundice and decreased transplant free survival. Similarly, the Ohi type II or III anatomy was associated with a higher risk of transplantation or death than type I. Inflammatory findings on pre operative biopsy predicted a pooreroutcome after a Kasai procedure than obstructive changes. Nodularity of the liver at surgery as well as ascites was associated with a poorer prognosis.Primary transplantation is rarely done despite excellent outcome. Deaths on the waiting list also have improved with routine use of split and live donor transplantation. The Kasai operation has the highest failure rate in its stated objective than any other operation in pediatric surgery. Failure to achieve any improvement in jaundice occurs in over 30% of all cases, even in the best of hands, and transplantation or listing for transplantation occurs in over half the children with type II and III BA by one year of age in countries where liver transplantation is readily available.There are almost no studies in children with BA that compare the outcome after liver transplantation for BA with or without a prior Kasai procedure. It is postulated that a prospective trial in children predicted to have a poor prognosis after the Kasai procedure based on anatomic pattern, liver histology and presence of BASM, would yield improved care, spare some infants needless surgery, and quite possibly result in diminished morbidity and mortality following liver transplant. PMID- 29030699 TI - Prematurity and biliary atresia: a 30-year observational study. AB - AIM OF STUDY: The diagnosis of biliary atresia (BA) remains challenging and delay can lead to significant morbidity with time to surgery a key factor in determining outcome. Prematurity may impact on outcome potentially delaying diagnosis. We sought to assess whether the premature BA infants (PBA) have a delayed time to surgery and as such, worse outcomes? METHODS: Review of a single centre prospectively maintained database. Prematurity was defined as delivery < 37/40 gestation. PBA was compared with date-matched term biliary atresia controls on a 2:1 basis. Primary outcomes were clearance of jaundice (< 20 MUmol/L) and native liver survival. A retrospective assessment of liver fibrosis was made on biopsies at diagnosis and at Kasai portoenterostomy (KPE) in both premature and term cohorts. Data are quoted as median (range) unless indicated. A P value of <= 0.05 was considered statistically significant. RESULTS: 21 (female n = 14, 67%) premature infants with BA were treated in the period Jan. 1988-Dec. 2016 and compared with 41 contemporaneous term BA controls. Median gestation was 33 (29 36) weeks and birth weight 1930 (948-4230)g. Twin pregnancy (n = 10) was the leading cause for prematurity and significantly higher than the controls (48 vs. 0%; P < 0.0001). Maternal co-morbidity was high (n = 10, 48%) including pre eclampsia (19%) and diabetes (14%). Liver biopsy was performed in 19 (90%) patients (all diagnostic) at a median of 57 (4-266) days. Delayed diagnosis (> 50 days) was seen in n = 13 but not associated with parenteral nutrition use (46 vs. 33%, P = 0.59) or phototherapy (50 vs. 83%, P = 0.19). Both BASM (33 vs. 7.5%; P = 0.01) and duodenal atresia (19 vs. 0%; P = 0.01) were seen more frequently in the PBA cohort. Mean fibrosis scores (Ishak) from diagnostic biopsies were lower in the premature group than the control group (2.71 vs. 3.53, P = 0.043) indicating less fibrosis but this equalized by time of subsequent KPE (P = 0.17). Primary surgery was Kasai portoenterostomy (n = 20) at an older median age than controls (65 vs. 56 days; P = 0.06). Liver transplantation was the primary procedure in one late-presenting child. There was an increased but non significant clearance of jaundice in the PBA group [n = 12/20 (60%) vs 20/41 (48%); P = 0.23] post-KPE. Native liver survival and true survival were not different (P = 0.58 and 0.23). CONCLUSIONS: PBA infants have similar outcomes to term infants, despite delayed diagnosis and higher frequency of the syndromic form. The high incidence of discordant twins supports the theory that epigenetic modifications could contribute to the pathogenesis of BA. LEVEL OF EVIDENCE: IIIc Retrospective Matched Cohort Study. PMID- 29030700 TI - Pyloric stenosis: an enigma more than a century after the first successful treatment. AB - Despite hypertrophic pyloric stenosis (HPS) being one of the most frequently treated pediatric surgical conditions, its etiology remains incompletely understood. We review the diagnosis and treatment of this condition with an emphasis on the evolution of surgical techniques that led to laparoscopic pyloromyotomy, the most frequently performed technique for HPS today. In addition, we review key developments in the understanding of HPS etiology and treatment, including the postulated etiology of work-induced hypertrophy of the pylorus, its association with prokinetic macrolide antibiotics, and the emerging role of atropine sulfate as a medical treatment for HPS or a rescue treatment for incomplete myotomy. PMID- 29030701 TI - Letter to the Editor concerning ''Radiographic evaluation of indirect decompression of mini-open anterior retroperitoneal lumbar interbody fusion: oblique lateral interbody fusion for degenerated lumbar spondylolisthesis'' by Jun Sato et al. Eur Spine J (2017) 26: 671-678. PMID- 29030702 TI - The prevalence of lumbar spondylolysis in young children: a retrospective analysis using CT. AB - PURPOSE: Although lumbar spondylolysis is encountered in general population with an incidence estimated to be 3-10%, limited information is available for children. The aim of the study is to determine the prevalence of spondylolysis according to associated vertebral bony malformation and spinopelvic parameters in children under eight requiring CT evaluation for unrelated lumbar conditions. METHODS: Seven hundred and seventeen abdominal and pelvic multi-detector CT scans were obtained in patients under 8 years of age were reviewed. Two board certificated radiologists and two resident radiologists retrospectively evaluated CT scans for lumbar spondylolysis and associated malformations. Pelvic incidence and spondylolisthesis were reported. RESULTS: Our analysis included 717 CT scans in 532 children (259 girls and 273 boys). Twenty-five cases of spondylolysis were diagnosed (16 bilateral and 9 unilateral, 64 and 36%, respectively) in 14 boys (56%) and 11 girls (44%), associating with 12 grade I spondylolisthesis. The mean normal pelvic incidence was 45 degrees (median 44 degrees , SD 7 degrees ). The prevalence of spondylolysis was 1% in children under age 3 (n = 3 among 292 patients), 3.7% in children under age 6 (n = 17 among 454 patients) and 4.7% among the 532 patients. Unilateral spondylolysis was significantly associated with a spinal malformation (p = 0.04, Fisher's exact test), with normal pelvic incidence. Half of the patients with bilateral spondylolysis had high pelvic incidence. CONCLUSIONS: We observed a prevalence peak of unilateral spondylolysis in the context of a specific malformation in young infants under age 4 with normal pelvic incidence, and, then, a progressive increase in the prevalence of bilateral isolated spondylolysis. PMID- 29030703 TI - Osteoporotic vertebral fractures: predictive factors for conservative treatment failure. A systematic review. AB - PURPOSE: To analyze clinical, radiographic and magnetic resonance findings that might predict risk of complications and conservative treatment failure of osteoporotic vertebral fractures. METHODS: The authors conducted a systematic review of observational studies, collecting data on osteoporotic vertebral fracture and complications like vertebral collapse, kyphosis, pseudoarthrosis, and neurologic deficit. MeSH items such as 'spinal fracture/radiology,' 'spinal fracture/complications,' 'spinal fracture/diagnosis' were used. PRISMA statement criteria were applied, and the risk of bias was classified as low, medium, high, following the Newcastle-Ottawa Quality Assessment Scale (NOS). RESULTS: Eleven cohort studies, either retrospective or prospective, met the eligibility criteria and were included in the review. Major risk factors that were statistically predictive of the following complications were as follows; (1) vertebral collapse: presence of intravertebral cleft, MR T1-WI 'total type fractures' and T2-WI 'hypointense-wide-type'. (2) Pseudoarthrosis (nonunion): middle-column damage, thoracolumbar vertebrae involvement, MR T2-WI confined high-intensity pattern and diffuse low intensity pattern. (3) Kyphotic deformity: thoracolumbar fracture and superior endplate fracture. (4) Neurologic impairment: a retropulsed bony fragment occupying more than 42% of the sagittal diameter of the spinal canal and a change of more than 15 degrees in vertebral wedge angle on lateral dynamic radiography. CONCLUSIONS: Shape and level of the fracture were risk factors associated with the progression of collapse, pseudoarthrosis, kyphotic deformity and neurologic impairment. MRI findings were often related to the failure of conservative treatment. If prognosis can be predicted at the early fracture stage, more aggressive treatment options, rather than conservative ones, might be considered. PMID- 29030704 TI - Expert's comment concerning Grand Rounds case entitled "Treatment of cervical subaxial injury in the very young child" by Z. Ozbek et al. (Eur Spine J; 2017. doi:10.1007/s00586-017-5316-z). PMID- 29030705 TI - Reviewer's comment concerning "Influence of a variation in the position of the arms on the sagittal connection of the gravity line with the spinal structures" (by J. Legaye and G. Duval-Beaupere, Eur Spine J; 2017: doi:10.1007/s00586-017 4961-6). PMID- 29030707 TI - Characterization and genome comparison of an Indian isolate of bidensovirus infecting the silkworm Bombyx mori. AB - The bipartite genome of an Indian isolate of Bombyx mori bidensovirus (BmBDV), one of the causative agents of the fatal silkworm disease 'Flacherie', was cloned and completely sequenced. Nucleotide sequence analysis of this Indian isolate of BmBDV revealed two viral DNA segments, VD1 and VD2 as well as a DNA polymerase motif which supports its taxonomical status as the type species of a new family of Bidnaviridae. The Indian isolate of BmBDV was found to have a total of six putative ORFs four of which were located on the VD1 with the other two being on the VD2 DNA segment. The VD1 DNA segment was found to code for three non structural proteins including a viral DNA polymerase as well as one structural protein, while the VD2 DNA segment was found to code for one structural and one non-structural protein, similar to that of the Japanese and Zhenjiang isolates of BmBDV. A BmBDV ORF expression study was done through real time qPCR wherein the VD2 ORF 1 and 2 showed the maximum transcript levels. This is the first report of the genome characterization of an Indian isolate of BmBDV, infecting silkworm B. mori. PMID- 29030706 TI - Rare ADAR and RNASEH2B variants and a type I interferon signature in glioma and prostate carcinoma risk and tumorigenesis. AB - In search of novel germline alterations predisposing to tumors, in particular to gliomas, we studied a family with two brothers affected by anaplastic gliomas, and their father and paternal great-uncle diagnosed with prostate carcinoma. In this family, whole-exome sequencing yielded rare, simultaneously heterozygous variants in the Aicardi-Goutieres syndrome (AGS) genes ADAR and RNASEH2B co segregating with the tumor phenotype. AGS is a genetically induced inflammatory disease particularly of the brain, which has not been associated with a consistently increased cancer risk to date. By targeted sequencing, we identified novel ADAR and RNASEH2B variants, and a 3- to 17-fold frequency increase of the AGS mutations ADAR,c.577C>G;p.(P193A) and RNASEH2B,c.529G>A;p.(A177T) in the germline of familial glioma patients as well as in test and validation cohorts of glioblastomas and prostate carcinomas versus ethnicity-matched controls, whereby rare RNASEH2B variants were significantly more frequent in familial glioma patients. Tumors with ADAR or RNASEH2B variants recapitulated features of AGS, such as calcification and increased type I interferon expression. Patients carrying ADAR or RNASEH2B variants showed upregulation of interferon-stimulated gene (ISG) transcripts in peripheral blood as seen in AGS. An increased ISG expression was also induced by ADAR and RNASEH2B variants in tumor cells and was blocked by the JAK inhibitor Ruxolitinib. Our data implicate rare variants in the AGS genes ADAR and RNASEH2B and a type I interferon signature in glioma and prostate carcinoma risk and tumorigenesis, consistent with a genetic basis underlying inflammation-driven malignant transformation in glioma and prostate carcinoma development. PMID- 29030708 TI - Lethal infection of embryonated chicken eggs by Hazara virus, a model for Crimean Congo hemorrhagic fever virus. AB - Hazara virus (HAZV) is a member of the genus Orthonairovirus of the family Nairoviridae. HAZV is closely related to Crimean-Congo hemorrhagic fever virus but differs in that it is non-pathogenic to humans. To establish an infection model system, we tested whether embryonated chicken eggs, which are classically used for evaluating viral pathogenicity, are susceptible to HAZV infection. We demonstrated that HAZV replicates well in embryonated chicken eggs and kills 100% of the embryos. This can be a valuable tool to evaluate the lethality of nairoviruses in a biosafety level 2 laboratory. PMID- 29030709 TI - Bleeding risk of submuscular ICD implantation with continued oral anticoagulation versus heparin bridging therapy. AB - Recent studies have shown that subcutaneous or subfascial pacemaker- and ICD implantation with continued oral anticoagulation therapy is associated with lower risk for bleeding complications, when compared to heparin bridging strategies. However, ICD generators are often implanted submuscularly. We therefore compared the bleeding risk with continued phenprocoumon therapy vs. heparin bridging in patients receiving submuscular ICD implantation. Between 01/2013 and 12/2013, 104 patients with need for oral anticoagulation received submuscular ICD or CRT-D implantation in our institution. 46 patients were implanted under continued phenprocoumon therapy while 58 patients received heparin bridging for implantation procedure. All ICD generators were placed submuscularly. The primary outcome of the study was clinically significant bleeding or device pocket hematoma with need for surgical revision. Mean patients age was 63.7 years, 72.1% were male. In patients with heparin bridging therapy, preoperative INR prior to ICD implantation was 1.2 +/- 0.31 while in the group of patients on continued phenprocoumon therapy, mean pre-OP INR was 2.4 +/- 0.47. In heparin bridging group, 8 (13.8%) patients experienced a clinically relevant pocket hematoma, while only 1 (2.2%) patient on continued phenprocoumon therapy needed surgical revision for pocket hematoma (P = 0.04). No further bleeding complications or clinically relevant pericardial effusion was observed in any of the groups and no perioperative thromboembolic event occurred. Submuscular ICD implantation under continued phenprocoumon therapy was safe and feasible. Compared to patients with heparin bridging therapy, those with continued phenprocoumon therapy had a lower incidence of clinically relevant bleeding complications. PMID- 29030710 TI - Comparison of functional outcome of bipolar hip arthroplasty and total hip replacement in displaced femoral neck fractures in elderly in a developing country: a 2-year prospective study. AB - PURPOSE: To compare the short-term functional outcome between bipolar hip arthroplasty (BHA) and total hip replacement (THR) in displaced femoral neck fractures in elderly patients in a developing country. MATERIALS AND METHODS: A prospective study was conducted which included a total of 42 patients of age more than 60 years with closed displaced femoral neck fractures, and the patients were randomized into two groups of 21 patients each and their outcomes were compared. RESULTS: At 24-month follow-up, patients in BHA group had a mean modified Harris hip score of 83.85 +/- 6.62 and patients in THR group had a mean modified Harris hip score of 88.00 +/- 5.76 (p value = 0.067). Seven (35%) patients in BHA group and 11 (55%) patients in THR group had hip scores from 91 to 100 (excellent), 9 (45%) patients in BHA and seven patients (35%) in THR had hip scores 81-90 (fair) and 4 (20%) patients in BHA group and 2 (10%) patients in THR group were rated 71 80 (good) and none was found in poor category. Total amount of blood loss while performing BHA was 238.15 +/- 20.43 ml compared to 336.85 +/- 23.56 ml in THR (p < 0.0001). Mean of total duration of surgery was found to be 51.80 +/- 8.70 min in BHA group which was significantly lesser than 119.10 +/- 16.75 min of THR group (p < 0.0001). CONCLUSION: BHA being comparable to THR in terms of functional outcome by modified Harris hip scoring with significantly less blood loss during surgery, less duration of surgery, more cost-effective can be recommended as first line of surgical management in elderly patients with displaced femur neck fractures in developing countries. LEVEL OF EVIDENCE: Level II, lesser-quality randomized controlled trial. PMID- 29030711 TI - The learning curve in short-stem THA: influence of the surgeon's experience on intraoperative adjustments due to intraoperative radiography. AB - INTRODUCTION: Short-stem THA has become increasingly popular over the last decade. However, implantation technique differs from conventional THA and thus possibly involves a distinct learning curve. The purpose of this study was to evaluate the value of intraoperative radiography and the influence of the surgeon's experience on intraoperative adjustments in short-stem THA. METHODS: A total of 287 consecutive short-stem THAs, operated by a total of 24 senior consultants, consultants and residents in training, were prospectively included. Intraoperative radiography was performed after trial reduction. Preoperative planning and intraoperative outcome with regard to positioning, sizing of components as well as resulting offset and leg length were compared. Frequency, reason and type of intraoperative adjustments were documented in relation to the surgeon's experience. Operation time was assessed. RESULTS: One hundred and fifty six (54.4%) procedures were carried out by one of three senior consultants, and a total of nine consultants and 12 residents in training performed 105 (36.6%) and 26 (9.0%) operations, respectively. In 121 cases (42.2%), intraoperative adjustments were made following intraoperative radiography. Intraoperative adjustments of one or more components were made by senior consultants in 51 cases (32.7%), by consultants in 53 cases (50.5%) and by residents in 17 cases (65.4%), respectively. The most common cause was undersizing of the stem. Operation time varied markedly between groups of surgeons. DISCUSSION: Short-stem THA involves a learning curve. Intraoperative radiography is decisive for prevention of malpositioning and undersizing of components, as well as loss of offset and leg length discrepancies. Hence, it should be considered mandatory, especially for less experienced surgeons. PMID- 29030712 TI - Calculating the Consequences of Left-Shifted Nav Channel Activity in Sick Excitable Cells. AB - Two features common to diverse sick excitable cells are "leaky" Nav channels and bleb damage-damaged membranes. The bleb damage, we have argued, causes a channel kinetics based "leakiness." Recombinant (node of Ranvier type) Nav1.6 channels voltage-clamped in mechanically-blebbed cell-attached patches undergo a damage intensity dependent kinetic change. Specifically, they experience a coupled hyperpolarizing (left) shift of the activation and inactivation processes. The biophysical observations on Nav1.6 currents formed the basis of Nav-Coupled Left Shift (Nav-CLS) theory. Node of Ranvier excitability can be modeled with Nav-CLS imposed at varying LS intensities and with varying fractions of total nodal membrane affected. Mild damage from which sick excitable cells might recover is of most interest pathologically. Accordingly, Na+/K+ ATPase (pump) activity was included in the modeling. As we described more fully in our other recent reviews, Nav-CLS in nodes with pumps proves sufficient to predict many of the pathological excitability phenomena reported for sick excitable cells. This review explains how the model came about and outlines how we have used it. Briefly, we direct the reader to studies in which Nav-CLS is being implemented in larger scale models of damaged excitable tissue. For those who might find it useful for teaching or research purposes, we coded the Nav-CLS/node of Ranvier model (with pumps) in NEURON. We include, here, the resulting "Regimes" plot of classes of excitability dysfunction. PMID- 29030713 TI - Nationwide survey for acute liver failure and late-onset hepatic failure in Japan. AB - BACKGROUND: A nationwide survey was performed to clarify the recent status of acute liver failure (ALF) and late-onset hepatic failure (LOHF) in Japan. METHODS: Two-step surveys for patients with ALF and LOHF meeting the Japanese diagnostic criteria were performed annually in 782 hospitals. The clinical features of the patients were then compared to those reported in previous surveys. RESULTS: In total, 1554 and 49 patients with ALF and LOHF, respectively, who were seen between 2010 and 2015 were enrolled. The subjects were classified into 1280 patients with hepatitis (642 non-comatose and 638 comatose) and 323 patients without hepatitis (190 non-comatose and 133 comatose). Compared with patients seen between 1998 and 2009, an older patient age and a higher percentage of underlying extrahepatic disease were observed. Although hepatitis virus infection was the most frequent etiology, the percentage of patients with this etiology had decreased, compared with previous cohorts, while the percentages of patients with drug-induced liver injuries, autoimmune hepatitis, and an indeterminate etiology had increased. Liver transplantation was performed in 170 patients (10.6%), whereas artificial liver support with plasmapheresis and/or hemodiafiltration were performed for most of the comatose patients. The outcomes of comatose patients were unfavorable, similar to previous surveys, especially the outcomes of hepatitis B virus carriers, including those with de novo hepatitis B (survival rate of 5.4% without liver transplantation). CONCLUSION: Although the clinical features, including the etiologies, of patients with ALF and LOHF have changed, the outcomes of patients have not improved in recent years. PMID- 29030714 TI - Cyclic fatigue resistance of XP-endo Shaper compared with different nickel titanium alloy instruments. AB - OBJECTIVE: The aims of this study were to assess and compare the resistance to cyclic fatigue of XP-endo Shaper (XPS; FKG Dentaire, La Chaux-de-Fonds, Switzerland) instruments with TRUShape (TRS; Dentsply Tulsa Dental Specialties, Tulsa, OK, USA), HyFlex CM (HCM; Coltene, Cuyahoga Falls, OH, USA), Vortex Blue (VB; Dentsply Tulsa Dental Specialties), and iRace (iR; FKG Dentaire) nickel titanium rotary instruments at body temperature. MATERIALS AND METHODS: Size 30, 0.01 taper of XPS, size 30, 0.04 taper of HCM, VB, iR, and size 30, 0.06 taper of TRS instruments were immersed in saline at 37 +/- 1 degrees C during cyclic fatigue testing. The instruments were tested with 60 degrees angle of curvature and a 3-mm radius of curvature. The number of cycles to failure (NCF) was calculated and the length of the fractured segment was measured. Fractographic examination of the fractured surface was performed using a scanning electron microscope. The data were analyzed statistically using Kruskal-Wallis H test and Mann-Whitney U tests. Statistical significance was set at P < 0.05. RESULTS: XPS had a significantly greater NCF compared with the other instruments (P < 0.001). The topographic appearance of the fracture surfaces of tested instruments revealed ductile fracture of cyclic fatigue failure. CONCLUSION: XPS instruments exhibited greater cyclic fatigue resistance compared with the other tested instruments. CLINICAL RELEVANCE: XP-endo Shaper instruments could be used more safely in curved canals due to their higher fatigue resistance. PMID- 29030715 TI - Point-of-care transcranial Doppler by intensivists. AB - In the unconscious patient, there is a diagnostic void between the neurologic physical exam, and more invasive, costly and potentially harmful investigations. Transcranial color-coded sonography and two-dimensional transcranial Doppler imaging of the brain have the potential to be a middle ground to bridge this gap for certain diagnoses. With the increasing availability of point-of-care ultrasound devices, coupled with the need for rapid diagnosis of deteriorating neurologic patients, intensivists may be trained to perform point-of-care transcranial Doppler at the bedside. The feasibility and value of this technique in the intensive care unit to help rule-in specific intra-cranial pathologies will form the focus of this article. The proposed scope for point-of-care transcranial Doppler for the intensivist will be put forth and illustrated using four representative cases: presence of midline shift, vasospasm, raised intra cranial pressure, and progression of cerebral circulatory arrest. We will review the technical details, including methods of image acquisition and interpretation. Common pitfalls and limitations of point-of-care transcranial Doppler will also be reviewed, as they must be understood for accurate diagnoses during interpretation, as well as the drawbacks and inadequacies of the modality in general. PMID- 29030716 TI - Prevalence, transmission, and host specificity of Cryptosporidium spp. in various animal groups from two French zoos. AB - Cryptosporidium represents a major cause of gastrointestinal illness in humans and animals including domestic, wild, and in captivity animals, and more than 30 validated species of Cryptosporidium are recognized as infectious to different hosts such as mammals, birds, reptiles, amphibians, and fish. Therefore, numerous investigations have been conducted worldwide in order to shed light on the epidemiology of this parasite and to explore its potential reservoirs. Few surveys, targeting humans and animals have been carried out regarding the epidemiology of Cryptosporidium spp. in France and no data are available about the circulation of this parasite in French zoological gardens. Herein, we determined the prevalence of Cryptosporidium in animals housed in two French zoos. A total of 307 fecal samples belonging to 161 species were screened by nested PCR. Overall, Cryptosporidium DNA was detected in 1.9% of the 161 species and 1% of the total number of fecal samples tested. Additionally, three Cryptosporidium species were identified: C. galli, C. andersoni, and C. tyzzeri. To our knowledge, this is the first molecular study focused on Cryptosporidium infection in captivity animals in France. This study is of interest considering the exposure of a large number of humans and animals to this waterborne protozoan, found ubiquitously in the environment. PMID- 29030717 TI - Baseline Cigarette Smoking Status as a Predictor of Virologic Suppression and CD4 Cell Count During One-Year Follow-Up in Substance Users with Uncontrolled HIV Infection. AB - Cigarette smoking is prevalent in people living with HIV/AIDS (PLHIV) who abuse alcohol and/or illicit substances. This study evaluated whether smoking is predictive of virologic non-suppression (> 200 copies/mL) and low CD4 count (< 200 cells/mm3) during 1-year follow-up in medically hospitalized, substance-using PLHIV recruited for a multi-site trial. Smoking status was assessed with the Heaviness of Smoking Index (HSI). Analyses revealed that, controlling for baseline differences and adherence to antiretroviral therapy, non-smokers (n = 237), compared to smokers scoring in the medium-to-high range on the HSI (n = 386), were significantly more likely to achieve viral suppression (OR 1.50, 95% CI 1.02, 2.20). There was a significant smoking-by-time interaction for CD4 cell count (chi2(1) = 4.08, p < .05), with smokers less likely to have low CD4 count at baseline and 6-month follow-up, but more likely to have low CD4 count at 12 month follow-up. The results suggest that smoking may play a role in immunological functioning in HIV-infected substance users. ClinicalTrials.gov Identifier: NCT01612169. PMID- 29030718 TI - Lacosamide in patients with gliomas and uncontrolled seizures: results from an observational study. AB - To report the efficacy and tolerability of lacosamide as an add-on treatment in patients with gliomas and uncontrolled seizures despite conventional antiepileptic drugs (AEDs). We conducted an observational study on 71 patients to describe patterns of response to lacosamide and the association between clinico pathological factors and seizure control. We observed at 3, 6 and 9 months a seizure reduction >= 50% in 74.6, 76 and 86.2% of patients and a seizure freedom in 42.2, 43 and 50%, respectively. The median number of seizures in the 3 months before treatment was 13, and decreased to 3 between baseline and 6 months, and to 0.5 between 6 and 9 months. The best seizure response was observed at 3 months (62%). Sixty per cent of patients displayed the maximum seizure control with doses of lacosamide of 100-250 mg/day, while 21% needed doses up to 400 mg/day. Seizure reduction >= 50% and seizure freedom were higher in patients who received lacosamide as first add-on compared to those who received a later adjunctive therapy. A reduction >= 50% of seizures was observed in a proportion of patients with progressive disease on MRI. Age > 45 years (OR 0.11, 95% CI 0.02-0.63, p = 0.013) was a significant predictor of seizure freedom at 9 months on multivariate analysis. The study suggests that lacosamide, when added to any baseline AEDs, is effective in obtaining a high seizure reduction and seizure freedom regardless of the tumor activity and response to antineoplastic therapies. PMID- 29030719 TI - Guidelines for the management of thoracic aortic disease in 2017. AB - This review provides a general overview of the consensus statement from the 2010 more recent updates AHA/ACC Guidelines for the Diagnosis and Management of Patients with Thoracic Aortic Disease, and highlights current practice patterns. The suggestions herein are intended to facilitate clinical decision making in the management of thoracic aortic disease. The main intent of this report is to highlight screening, surveillance, initial and definitive management of thoracic aortic disease, and special populations that should be considered. PMID- 29030720 TI - Molecular Diagnostic Testing in Cardiac Transplantation. AB - PURPOSE OF REVIEW: Acute rejection is one of the most feared complications of cardiac transplantation. Developing non-invasive methods for detection and surveillance of acute rejection have long been a goal for post-transplant care. RECENT FINDINGS: Here, we will review molecular diagnostic tests that are currently in use or under development to diagnose acute cellular rejection after cardiac transplantation. Gene expression, microRNA, molecular microscope, and cell-free DNA assays offer non-invasive alternatives to the endomyocardial biopsy for acute rejection surveillance. PMID- 29030721 TI - Percutaneous treatment of hepatic cystic echinococcosis: the success of alcohol as a single endocavitary agent in PAIR, catheterization, and modified catheterization techniques. AB - OBJECTIVES: This retrospective study aims at demonstrating the success rate, effectiveness, and advantages of alcohol as a scolicidal and sclerosing agent for the percutaneous treatment of liver hydatid cysts. METHODS: A total of 554 liver hydatid cysts obtained from 347 patients admitted between January 2008 and February 2016 were retrospectively investigated. Of these, 435 (78.5%), 91 (16.4%), and 28 (5%) were classified as Gharbi type 1, 2, and 3, respectively. Type 1 and 2 cysts were treated using PAIR (puncture, aspiration, injection, respiration) and single puncture catheterization methods; type 3 lesions were treated using a modified catheterization technique. Alcohol was used as a scolicidal and sclerosing agent in all procedures. RESULTS: After excluding three lesions (0.5%) because of lack of parenchymal support during catheterization, 274 (49.7%), 250 (45.3%), and 27 (4.9%) of 551 lesions were treated with PAIR, single puncture catheterization, and modified catheterization techniques, respectively. Therefore, a 99.5% of technical success rate was obtained. Major complications in 2 patients (0.5%) and minor complications were observed in 36 patients (10.3%). Mean hospital stay was 1.55+/-2.3 days (range: 0-23 days). Patients were followed up for mean 19.6 months (range: 6-83 months), during which recurrences were detected in 19 patients (5.4%). CONCLUSIONS: The use of alcohol as a scolicidal and sclerosing agent during the percutaneous treatment of liver hydatid cysts is associated with a high success rate and low rates of recurrence and complications, and should be considered an important alternative to surgical procedures. PMID- 29030723 TI - Eric Davidson and deep time. AB - Eric Davidson had a deep and abiding interest in the role developmental mechanisms played in generating evolutionary patterns documented in deep time, from the origin of the euechinoids to the processes responsible for the morphological architectures of major animal clades. Although not an evolutionary biologist, Davidson's interests long preceded the current excitement over comparative evolutionary developmental biology. Here I discuss three aspects at the intersection between his research and evolutionary patterns in deep time: First, understanding the mechanisms of body plan formation, particularly those associated with the early diversification of major metazoan clades. Second, a critique of early claims about ancestral metazoans based on the discoveries of highly conserved genes across bilaterian animals. Third, Davidson's own involvement in paleontology through a collaborative study of the fossil embryos from the Ediacaran Doushantuo Formation in south China. PMID- 29030722 TI - Predelivery uterine artery embolization for placental anomalies: some clarifications. PMID- 29030724 TI - Exploratory behavior of a native anuran species with high invasive potential. AB - Exploratory behavior can be a key component of survival in novel or changing environments, ultimately determining population establishment. While many studies have investigated the behavior of wild animals in response to novel food items or objects, our understanding of how they explore novel environments is limited. Here, we examine how experience affects the foraging behavior of a species with high invasive potential. In particular, we investigate the movement and behavior of cane toads as a function of experience in a novel environment, and how the presence of food modulates exploration. Cane toads, from a population in their native range, were repeatedly tested in a large, naturalistic arena with or without food present. Both groups exhibited significant but different changes in exploratory behavior. While toads in an environment without food reduced exploratory behavior over trials, those with food present increased both food intake per trial and the directness of their paths to food, resulting in fewer approaches to food patches over time. Our results suggest that cane toads learn patch location and provide preliminary evidence suggesting toads use spatial memory, not associative learning, to locate food. In sum, we show that with experience, cane toads alter their behavior to increase foraging efficiency. This study emphasizes the role of learning in foraging in cane toads, a characteristic that may have facilitated their success as invaders. PMID- 29030725 TI - Domestic horses (Equus caballus) prefer to approach humans displaying a submissive body posture rather than a dominant body posture. AB - Signals of dominance and submissiveness are central to conspecific communication in many species. For domestic animals, sensitivities to these signals in humans may also be beneficial. We presented domestic horses with a free choice between two unfamiliar humans, one adopting a submissive and the other a dominant body posture, with vocal and facial cues absent. Horses had previously been given food rewards by both human demonstrators, adopting neutral postures, to encourage approach behaviour. Across four counterbalanced test trials, horses showed a significant preference for approaching the submissive posture in both the first trial and across subsequent trials, and no individual subject showed an overall preference for dominant postures. There was no significant difference in latency to approach the two postures. This study provides novel evidence that domestic horses may spontaneously discriminate between, and attribute communicative significance to, human body postures of dominance; and further, that familiarity with the signaller is not a requirement for this response. These findings raise interesting questions about the plasticity of social signal perception across the species barrier. PMID- 29030726 TI - Correction to: A Scoping Review of Economic Evaluations Alongside Randomised Controlled Trials of Home Monitoring in Chronic Disease Management. AB - Table 2, 'Stoddart [19]' row: The cell entry in the 'Mean cost per control patient (SE)' column. PMID- 29030727 TI - [Parenteral nutrition in premature babies with a birth weight <1500g: a systematic single-center analysis and comparison with current guidelines]. AB - BACKGROUND: Parenteral and enteral nutrition are essential for both growth and development of preterm infants. Based on the results of many studies, the rate of nutritional growth and the amount of substrate delivered parenterally are under debate. OBJECTIVE: The main aim of this study was to assess parenteral nutrition in very and extremely immature preterm infants, i.e. very low birth weight (VLBW, birth weight <1500g) and extremely low birth weight (ELBW, birth weight <1000g) neonates, and to compare the amount of parenterally delivered substrate in our neonatal intensive care unit (NICU) to current German guidelines. METHODS: Retrospective audit at our tertiary NICU at the University Children's Hospital of Saarland, Homburg, Germany between 1 January 2009 and 31 December 2010. RESULTS: In total, 100 premature neonates were included. The mean gestational age was 29.6 weeks (range 24.4-34.1 weeks) and the mean birth weight was 1119 g +/- 260 g (range 570 g-1490 g). Comparing the amount of fluids, glucose, amino acids, lipids and kcals with the current guidelines of the German Society for Nutritional Medicine in preterm infants, only glucose was adequately given; however, a substantial number of weight-dependent (more often in ELBW neonates) episodes of hyperglycemia requiring insulin treatment were also seen. During the first 3 weeks of life a substantial drop in body weight, length and head circumference occurred in our study cohort. In contrast, at 2 years corrected age, catch-up growth was seen in our cohort with anthropometric data now comparable to healthy term infants. Using the Bayley II test for developmental outcome assessment, at 2 years corrected age 78.6% (33/42) of infants demonstrated normal development. CONCLUSIONS: This retrospective data analysis demonstrated inadequate provision of parenteral nutrition in our NICU, which was often not in line with current German guidelines. This was associated with inadequate growth in our cohort, most notably during the first 3 weeks of life; however, implementation of current guidelines is impeded by metabolic disturbances in this cohort, most notably in ELBW neonates. Whether adherence to published guidelines will result in better early ex utero growth, and whether this normalized growth pattern will translate into better long-term outcome on a metabolic and neurological level, remains unclear. PMID- 29030728 TI - Clinical trial design and recommendations: collectively, we can take them. AB - There is dynamic opportunity to advance medical research and clinical trial innovation in the USA and throughout the world. Identified problems and solutions in the clinical research and clinical trial enterprise have emerged over recent years. Strategic plans, public reports, expertise panels and international agreements have been produced, and now is the time to move forward collectively. Recommendations should be reviewed, especially because global healthcare can take them. A robust and future medical research enterprise hinges on maximized clinical trial efficiency, both in the USA and abroad. PMID- 29030729 TI - Long photoperiod affects the maize transition from vegetative to reproductive stages: a proteomic comparison between photoperiod-sensitive inbred line and its recurrent parent. AB - Maize (Zea mays L.) is a typical short-day plant that is produced as an important food product and industrial material. The photoperiod is one of the most important evolutionary mechanisms enabling the adaptation of plant developmental phases to changes in climate conditions. There are differences in the photoperiod sensitivity of maize inbred lines from tropical to temperate regions. In this study, to identify the maize proteins responsive to a long photoperiod (LP), the photoperiod-insensitive inbred line HZ4 and its near-isogenic line H496, which is sensitive to LP conditions, were analyzed under long-day conditions using isobaric tags for relative and absolute quantitation. We identified 5259 proteins in maize leaves exposed to the LP condition between the vegetative and reproductive stages. These proteins included 579 and 576 differentially accumulated proteins in H496 and HZ4 leaves, respectively. The differentially accumulated proteins (e.g., membrane, defense, and energy- and ribosome-related proteins) exhibited the opposite trends in HZ4 and H496 plants during the transition from the vegetative stage to the reproductive stage. These results suggest that the photoperiod-associated fragment in H496 plants considerably influences various proteins to respond to the photoperiod sensitivity. Overall, our data provide new insights into the effects of long-day treatments on the maize proteome, and may be useful for the development of new germplasm. PMID- 29030730 TI - Introduction: Eric Davidson and the molecular biology of evolution and development. AB - Between November 30th and December 2nd, 2015, the Jacques Loeb Centre for the History and Philosophy of the Life Sciences at Ben-Gurion University of the Negev in Beer Sheva (Israel) held its Eighth International Workshop under the title "From Genome to Gene: Causality, Synthesis and Evolution". Eric Davidson, the founder of the concept of developmental Gene Regulatory Networks, had regularly attended the previous meetings, and his participation in this one was expected, but he suddenly passed away 3 months before. In this paper, we provide an introduction and overview on five papers that were presented at the workshop and examine the importance of genomes and gene regulatory networks in extant biology, developmental biology, evolutionary biology and medicine, as well as a collection of remembrances of Eric Davidson, of his personality as well as of his scientific contributions. Historical perspectives are provided, and the ethical issues raised by the new tools developed to modify the genome are also discussed. PMID- 29030731 TI - Burden of migraine in a Kuwaiti population: a door-to-door survey. AB - BACKGROUND: Migraine prevalence and disability imprints on Kuwaiti population are underreported. We aimed to measure the prevalence of migraine and to assess its burden in Kuwait. METHODS: A cross-sectional community-based study was conducted which included biologically unrelated Kuwaiti adult population aged 18-65 years. They were randomly recruited from all six governments of Kuwait using stratified multistage cluster sampling. Trained interviewers visited the samples in door-to door approach. The Headache-Attributed Restriction, Disability, and Social Handicap and Impaired Participation (HARDSHIP) questionnaire was used to collect the data. Demographic enquires were followed by diagnostic and disability questions. RESULTS: A total of 15,523 subjects were identified; of whom 3588 (23%) were diagnosed as episodic migraine and 845 (5.4%) as chronic headache. Prevalence of episodic migraine was 31.71% in female versus 14.88% in males (P < 0.01) with a mean age of 34.56 +/- 10.17 years. Most of migraine cohort (64.4%) sought medical advice with respect to their migraine headaches and the majority (62.4%) were seen by general practitioners (GPs) while 17.2% were assessed by neurologists and 3.7% was seen by other specialties. Tension type headache and sinus-related headaches were diagnosed in 8.9% and 2.1% of migraine subjects respectively. The majority (94.6%) of migraine subjects used symptomatic drugs for headache attacks, whereas 39.9% were taking preventive medication. In the preceding 3 months to the survey, subjects with episodic migraine had lost a mean of 1.97 days from their paid work or school attendance compared to 6.62 days in chronic headache sufferers (P < 0.001). Additionally, subjects with episodic migraine lost a mean of 1.40 days from household work compared to 5.35 days in subjects with chronic headache (P < 0.001). Participants with episodic migraine and chronic headache missed a mean of 2.81 and 3.85 days on social occasions, in the preceding 3 months (P < 0.001). CONCLUSIONS: Migraine in Kuwait is highly prevalent and it has a significant impact on activity of daily living, schooling/ employment and social occasions of patients. Accurate diagnosis, effective abortive and preventive treatments of migraine are paramount to improve quality of life and as well as cost saving. PMID- 29030732 TI - Deguelin induces PUMA-mediated apoptosis and promotes sensitivity of lung cancer cells (LCCs) to doxorubicin (Dox). AB - As a natural agent for chemotherapy, deguelin remarkably suppresses proliferation in numerous solid cancers. Nevertheless, the molecular mechanisms of its suppression are still insufficient. In our research, it was revealed that deguelin induced cell death of lung cancer cells (LCCs) by triggering expression of PUMA. Deguelin triggered PUMA induction independently of p53 via suppression of PI3K/AKT pathway, therefore stimulating Foxo3a to bind with PUMA promoter and stimulate its transcription. Subsequent to activation, PUMA motivated Bax as well as the intrinsic mitochondrial cell death pathway. Removal of PUMA from LCC cells led to deguelin resistance, suggesting deguelin-induced cell death was modulated by PUMA. Furthermore, we demonstrated that deguelin enhanced the chemotherapeutic sensitivity of doxorubicin in vitro and in vivo, which were associated with potentiated PUMA induction. Taken together, these results establish a critical role of PUMA in mediating the anticancer effects of deguelin in lung cancer cells and provide the rationale for clinical evaluation. PMID- 29030733 TI - High Yield Preparation of Functionally Active Catalytic-Translocation Domain Module of Botulinum Neurotoxin Type A That Exhibits Uniquely Different Enzyme Kinetics. AB - Botulinum neurotoxins (BoNTs) are the most toxic proteins known to cause flaccid muscle paralysis as a result of inhibition of neurotransmitter release from peripheral cholinergic synapses. BoNT type A (BoNT/A) is a 150 kDa protein consisting of two major subunits: light chain (LC) and heavy chain (HC). The LC is required for the catalytic activity of neurotoxin, whereas the C and N terminal domains of the HC are required for cell binding, and translocation of LC across the endosome membranes, respectively. To better understand the structural and functional aspects of BoNT/A intoxication we report here the development of high yield Escherichia coli expression system (2-20-fold higher yield than the value reported in the literature) for the production of recombinant light chain translocation domain (rLC-TD/A) module of BoNT/A which is catalytically active and translocation competent. The open reading frame of rLC-TD/A was PCR amplified from deactivated recombinant BoNT/A gene (a non-select agent reagent), and was cloned using pET45b (+) vector to express in E. coli cells. The purification procedure included a sequential order of affinity chromatography, trypsinization, and anion exchange column chromatography. We were able to purify > 95% pure, catalytically active and structurally well-folded protein. Comparison of enzyme kinetics of purified LC-TD/A to full-length toxin and recombinant light chain A suggest that the affinity for the substrate is in between endopeptidase domain and botulinum toxin. The potential application of the purified protein has been discussed in toxicity and translocation assays. PMID- 29030734 TI - Erratum to: Inhibition of Angiotensin II-Induced Cardiac Fibrosis by Atorvastatin in Adiponectin Knockout Mice. AB - In the original published article, Victor Serebruany was designated as the corresponding author in error. The corresponding author is Jong Sung Park. Dr. Park can be reached by email at thinkmed@dau.ac.kr. PMID- 29030735 TI - Suicide Attempts Among Adolescents with Self-Reported Disabilities. AB - This study examines the relative risk for suicide attempts (SA) among high-school students self-identifying with one or more disability classifications (nine); assesses the extent to which youth with disabilities are disproportionately vulnerable to risk factors that predict suicidal behavior among all adolescents; and explores whether disability status adds to risk for SA after accounting for a comprehensive set of known risk and protective factors for SA. Analyses using Wisconsin's 2012 Dane County Youth Assessment Survey data found that youth in each disability category were 3-9 times more likely to report suicide attempt(s) relative to peers, and the endorsement of multiple disabilities tripled the risk SA relative to youth reporting a single disability. Some disability sub-groups, including youth reporting autism spectrum disorder, hearing, and vision impairments reported surprisingly high rates of SA. While youth with disabilities reported disproportionate exposure to adversity in every life domain examined, similar to youth reporting SA, disability status added unique risk for suicidal behavior. This suggests that disability may be a 'fundamental cause' of suicidal behavior, a question that requires further investigation. PMID- 29030736 TI - N-tert-butyloxycarbonyl-Phe-Leu-Phe-Leu-Phe (BOC2) inhibits the angiogenic activity of heparin-binding growth factors. AB - The peptides N-tert-butyloxycarbonyl-Phe-Leu-Phe-Leu-Phe (BOC2) and BOC-Met-Leu Phe (BOC1) are widely used antagonists of formyl peptide receptors (FPRs), BOC2 acting as an FPR1/FPR2 antagonist whereas BOC1 inhibits FPR1 only. Extensive investigations have been performed by using these FPR antagonists as a tool to assess the role of FPRs in physiological and pathological conditions. Based on previous observations from our laboratory, we assessed the possibility that BOC2 may exert also a direct inhibitory effect on the angiogenic activity of vascular endothelial growth factor-A (VEGF-A). Our data demonstrate that BOC2, but not BOC1, inhibits the angiogenic activity of heparin-binding VEGF-A165 with no effect on the activity of the non-heparin-binding VEGF-A121 isoform. Endothelial cell-based bioassays, surface plasmon resonance analysis, and computer modeling indicate that BOC2 may interact with the heparin-binding domain of VEGF-A165, thus competing for heparin interaction and preventing the binding of VEGF-A165 to tyrosine kinase receptor VEGFR2, its phosphorylation and downstream signaling. In addition, BOC2 inhibits the interaction of a variety of heparin-binding angiogenic growth factors with heparin, including fibroblast growth factor 2 (FGF2) whose angiogenic activity is blocked by the compound. Accordingly, BOC2 suppresses the angiogenic potential of human tumor cell lines that co-express VEGF-A and FGF2. Thus, BOC2 appears to act as a novel multi-heparin-binding growth factor antagonist. These findings caution about the interpretation of FPR focusing experimental data obtained with this compound and set the basis for the design of novel BOC2-derived, FPR independent multi-target angiogenesis inhibitors. PMID- 29030737 TI - Comment on "Long-Term Survival Benefit and Potential for Cure after R1 Resection for Colorectal Liver Metastases": A Reply. PMID- 29030738 TI - Survival Analysis in a Randomized Trial of HIPEC in Ovarian Cancer. PMID- 29030739 TI - What Advisors Want from Advisees: A Survey Within One Academic Psychiatry Department. PMID- 29030740 TI - Much of What We Have Needed to Know as Academic Managers We Learned Leading Teenage Jazz Groups. PMID- 29030741 TI - The Role of Next-Generation Sequencing in Sarcomas: Evolution From Light Microscope to Molecular Microscope. AB - PURPOSE OF REVIEW: Sarcomas are rare, heterogeneous group of soft tissue and bone tumors. Precise diagnosis of specific subtypes is challenging using conventional methods. Herein, we review the role of next-generation sequencing (NGS) technology that is used for rapid sequencing of DNA and RNA. RECENT FINDINGS: Recent sarcoma specific studies recommend that molecular genetic testing should be added at diagnosis for appropriate clinical management in addition to diagnosis by expert pathologists. NGS has already been used to identify potentially actionable mutations, copy number alterations, and gene fusions. Rationally, choosing a drug based on an individual patient profile aka: "precision oncology" has been so far limited to few case reports in sarcomas. As we improve our ability to deliver personalized medicine using all modalities including conventional therapy, more patients may eventually benefit. As the cost and capacity of NGS outpace Moore's law, so does the probability of success. PMID- 29030742 TI - PTEN Gene Induces Cell Invasion and Migration via Regulating AKT/GSK-3beta/beta Catenin Signaling Pathway in Human Gastric Cancer. AB - BACKGROUND: Abnormality of PTEN gene and Wnt/beta-catenin signaling have been strongly implicated in various malignant cancers. Recently, it has been noted that a functional interaction/cross-talk was found between the PTEN/PI3K/AKT and Wnt/beta-catenin, which plays a key role in the development of cancers. However, few related studies on gastric cancer are available. AIM: We examined the expression of PTEN and beta-catenin in gastric cancer tissues and detected whether down-regulation of PTEN promotes the migration and invasion in gastric cancer cells along with its underlying mechanism. MATERIALS AND METHODS: Immunocytochemistry, a wound healing assay, a Matrigel invasion assay, an immunofluorescence staining were performed to detect expression of PTEN and beta catenin in gastric cancer and adjacent normal tissues, cell migration, cell invasion, and the effects of PTEN knockdown on beta-catenin in cells, respectively. Further, MMP-2 and MMP-9 activities were analyzed by zymography assay. The changes in related proteins were further quantified by western blotting. RESULTS: Low expression of PTEN was found in majority of gastric cancer tissues, which showed significant associations with differentiation grade in gastric cancer patients. Further, a negative correlation was revealed between PTEN and beta-catenin protein expression in gastric cancer tissues (r = - 0.546, P < 0.01). Additionally, PTEN knockdown promoted the migration and invasion of cells and caused an obvious increase in p-AKT, p-GSK-3beta, beta-catenin, E cadherin, MMP-7, MMP-2, and MMP-9 in gastric cancer cells. CONCLUSION: Our results indicated PTEN gene might induce cell invasion and migration via regulating AKT/GSK-3beta/beta-catenin signaling pathway, playing a vital role in the progression of gastric cancer. PMID- 29030743 TI - miR-182 and miR-135b Mediate the Tumorigenesis and Invasiveness of Colorectal Cancer Cells via Targeting ST6GALNAC2 and PI3K/AKT Pathway. AB - BACKGROUND: Metastasis is a leading cause of cancer-related death including colorectal cancer (CRC). MicroRNAs are known to regulate cancer pathways and to be expressed aberrantly in cancer. Aberrant sialylation is closely associated with malignant phenotype of tumor cells, including invasiveness and metastasis. AIM: This study aimed to investigate the association of miR-182 and miR-135b with proliferation and invasion by targeting sialyltransferase ST6GALNAC2 in CRC cells and explore the potential molecular mechanism. METHODS: We measured the levels of miR-182, miR-135b, and ST6GALNAC2 in a series of CRC cell lines and tissues using real-time PCR. Bioinformatics analysis and luciferase reporter assay were performed to test the direct binding of miR-182 and miR-135b to the target gene ST6GALNAC2. We also analyzed the possible role of miR-182/-135b on colony formation, wound healing, invasion, and tube formation. RESULTS: The expression of miR-182 and miR-135b was higher in tumor tissues compared to adjacent noncancerous tissues of CRC patients, as well as up-regulated in SW620 cells than in SW480 cells with different metastatic potential. By applying bioinformatics analysis and luciferase reporter assay, we identified ST6GALNAC2 as the direct target of miR-182/-135b. Furthermore, miR-182/-135b inhibited significantly ST6GALNAC2 expression, and consistently, ST6GALNAC2 mediated migration, adhesion, invasion, proliferation, and tumor angiogenesis in CRC cell lines. Additionally, PI3K/AKT signaling pathway was regulated by miR-182/135b, which was partially blocked by altered level of ST6GALNAC2 in CRC. CONCLUSIONS: The miR-182/ 135b/ST6GALNAC2/PI3K/AKT axis may serve as a predictive biomarker and a potential therapeutic target in CRC treatment. PMID- 29030744 TI - Peptide Tyrosine Tyrosine 3-36 Reduces Meal Size and Activates the Enteric Neurons in Male Sprague-Dawley Rats. AB - BACKGROUND: Peptide tyrosine tyrosine 3-36 (peptide YY 3-36 or PYY 3-36) reduces food intake by unknown site(s). AIM: To test the hypothesis that the gastrointestinal tract contains sites of action regulating meal size (MS) and intermeal interval (IMI) length by PYY 3-36. METHODS: Peptide YY 3-36 (0, 1, 5, 10 and 20 nmol/kg) was injected in the aorta, the artery that supplies the gastrointestinal tract, prior to the onset of the dark cycle in free feeding male Sprague-Dawley rats and food intake was measured. Then, PYY 3-36 (25 nmol/kg) was injected intraperitoneally in these rats and Fos-like immunoreactivity (Fos-LI, a marker for neuronal activation) was quantified in the small intestinal enteric neurons, both myenteric and submucosal, and the dorsal vagal complex (DVC) of the hindbrain. RESULTS: PYY 3-36 reduced first MS, decreased IMI length, shortened duration of first meal and increased Fos-LI in enteric and DVC neurons. However, PYY 3-36 failed to change the size of the second meal, satiety ratio, latency to first meal, number of meals and 24 h intake relative to saline control. CONCLUSION: The gastrointestinal tract may contain sites of action regulating MS reduction by PYY 3-36. PMID- 29030745 TI - Modulation of Gut Microbiota by Maillard Reaction Products in Intestinal Inflammation: Are We What We Eat? PMID- 29030747 TI - 2017 CMP Honoree: Professor Shirley Lindenbaum. PMID- 29030746 TI - Platelet microRNA for predicting acute myocardial infarction. AB - Acute myocardial infarction (AMI) is one of the leading causes of morbidity and mortality worldwide, while early diagnosis still represents an upmost priority. While platelet activation is critical for AMI pathogenesis, the role of platelet microRNAs (pmiRNAs) as biomarkers for AMI is unclear. Furthermore, correlations between the levels of pmiRNAs and indices of platelet activity are also unknown. Expression of platelet miR-1, miR-21, miR-126, miR-150 and miR-223 were prospectively assessed in 20 ST-segment elevation myocardial infarction (STEMI) patients, and 40 healthy volunteers. Platelet reactive units (PRU) were assessed with cartridge analyzer, and vasodilator-stimulated phosphoprotein (VASP) was measured by flow cytometry. There were no significant changes in pmiR-1 expression. Expressions of pmiR-21 and pmiR-126 were decreased, while pmiR-150 and pmiR-223 were increased in STEMI patients when compared to controls (all p < 0.01). However, only pmiR-126 exhibited correlation with plasma cardiac troponin I (r = - 0.556, p = 0.011) in STEMI. There was no correlation between pmiRNAs with PRU or VASP during admission, or at 48 h post-stenting. Among tested pmiRNAs, pmiR-126 may serve as a potential novel biomarker for STEMI, while pmiR 1, pmiR-21, pmiR-150, and pmiR-223 were not particularly useful. Moreover, since assessed pmiRNA expression did not correlate well with platelet activity indices their potential diagnostic utility is quite limited. PMID- 29030748 TI - Neuroimaging of Cavernous Malformations. AB - PURPOSE OF REVIEW: Cerebral cavernous malformations (CCMs) are common vascular abnormalities often discovered on imaging as an incidental finding. The most common clinical presentations of CCMs include seizure, headache, focal neurological deficits, and intracranial hemorrhage. This article discusses the most recent guidelines including imaging diagnostic criteria and radiographic standards of CCMs and reviews the utility of currently available imaging techniques. RECENT FINDINGS: Gradient echo T2*-weighted imaging and susceptibility-weighted imaging are the recommended imaging protocols for evaluation of suspected CCMs. Diffusion tensor imaging-based tractography provides visualization of the eloquent white matter tracks in the brain. This imaging is increasingly used in clinical practice to assist in selecting the optimal surgical approach, especially for brainstem lesions. Quantitative susceptibility mapping and dynamic contrast-enhanced quantitative perfusion are presently considered experimental. Its proposed value might prove helpful in the future to monitor disease activity and response to treatments. The choice of imaging modality of CCMs depends on the goals the clinician expects to achieve, such as establishing the initial diagnosis, follow-up and monitoring disease activity, preoperative, intraoperative, and postoperative evaluation, or research and experimental work on patients with CCM. PMID- 29030749 TI - Bayesian Sensitivity Analysis of a Nonlinear Dynamic Factor Analysis Model with Nonparametric Prior and Possible Nonignorable Missingness. AB - Many psychological concepts are unobserved and usually represented as latent factors apprehended through multiple observed indicators. When multiple-subject multivariate time series data are available, dynamic factor analysis models with random effects offer one way of modeling patterns of within- and between-person variations by combining factor analysis and time series analysis at the factor level. Using the Dirichlet process (DP) as a nonparametric prior for individual specific time series parameters further allows the distributional forms of these parameters to deviate from commonly imposed (e.g., normal or other symmetric) functional forms, arising as a result of these parameters' restricted ranges. Given the complexity of such models, a thorough sensitivity analysis is critical but computationally prohibitive. We propose a Bayesian local influence method that allows for simultaneous sensitivity analysis of multiple modeling components within a single fitting of the model of choice. Five illustrations and an empirical example are provided to demonstrate the utility of the proposed approach in facilitating the detection of outlying cases and common sources of misspecification in dynamic factor analysis models, as well as identification of modeling components that are sensitive to changes in the DP prior specification. PMID- 29030750 TI - A New Explanation and Proof of the Paradoxical Scoring Results in Multidimensional Item Response Models. AB - In multidimensional item response models, paradoxical scoring effects can arise, wherein correct answers are penalized and incorrect answers are rewarded. For the most prominent class of IRT models, the class of linearly compensatory models, a general derivation of paradoxical scoring effects based on the geometry of item discrimination vectors is given, which furthermore corrects an error in an established theorem on paradoxical results. This approach highlights the very counterintuitive way in which item discrimination parameters (and also factor loadings) have to be interpreted in terms of their influence on the latent ability estimate. It is proven that, despite the error in the original proof, the key result concerning the existence of paradoxical effects remains true-although the actual relation to the item parameters is shown to be a more complicated function than previous results suggested. The new proof enables further insights into the actual mathematical causation of the paradox and generalizes the findings within the class of linearly compensatory models. PMID- 29030751 TI - Effects of regional perfusion block in healthy and injured lungs. AB - BACKGROUND: Severe hypoperfusion can cause lung damage. We studied the effects of regional perfusion block in normal lungs and in the lungs that had been conditioned by lavage with 500 ml saline and high V T (20 ml kg-1) ventilation. METHODS: Nineteen pigs (61.2 +/- 2.5 kg) were randomized to five groups: controls (n = 3), the right lower lobe block alone (n = 3), lavage and high V T (n = 4), lung lavage, and high V T plus perfusion block of the right (n = 5) or left (n = 4) lower lobe. Gas exchange, respiratory mechanics, and hemodynamics were measured hourly. After an 8-h observation period, CT scans were obtained at 0 and 15 cmH2O airway pressure. RESULTS: Perfusion block did not damage healthy lungs. In conditioned lungs, the left perfusion block caused more edema in the contralateral lung (777 +/- 62 g right lung vs 484 +/- 204 g left; p < 0.05) than the right perfusion block did (581 +/- 103 g right lung vs 484 +/- 204 g left; p n.s.). The gas/tissue ratio, however, was similar (0.5 +/- 0.3 and 0.8 +/- 0.5; p n.s.). The lobes with perfusion block were not affected (gas/tissue ratio right 1.6 +/- 0.9; left 1.7 +/- 0.5, respectively). Pulmonary artery pressure, PaO2/FiO2, dead space, and lung mechanics were more markedly affected in animals with left perfusion block, while the gas/tissue ratios were similar in the non occluded lobes. CONCLUSIONS: The right and left perfusion blocks caused the same "intensity" of edema in conditioned lungs. The total amount of edema in the two lungs differed because of differences in lung size. If capillary permeability is altered, increased blood flow may induce or increase edema. PMID- 29030752 TI - Sphingorhabdus buctiana sp. nov., isolated from fresh water, and reclassification of Sphingopyxis contaminans as Sphingorhabdus contaminans comb. nov. AB - A Gram-stain-negative, strictly aerobic, non-motile and rod-shaped bacterial strain, designated T5T, was isolated from the Chishui River in Maotai town, Guizhou Province, Southwest of China. Strain T5T was found to grow optimally at pH 9.0 and 25 degrees C. The 16S rRNA gene sequence analysis indicated that strain T5T belongs to the family Sphingomonadaceae within the phylum Proteobacteria; the strain T5T clustered with the type strains of Sphingopyxis contaminans, Sphingorhabdus wooponensis and Sphingorhabdus rigui, with which it exhibits 16S rRNA gene sequence similarity values of 96.2-96.9%. The DNA G+C content was 58.5 mol%. The major respiratory quinone was Q-10 and the major polar lipid was phosphatidylethanolamine. The major polyamine was homospermidine and the major fatty acids were C18:1 omega7c (37.5%) and C16:1 omega7c (30.1%). On the basis of phylogenetic, phenotypic and genetic data, strain T5T represents a novel species of the genus Sphingorhabdus, for which the name Sphingorhabdus buctiana sp. nov. is proposed. The type strain is T5T (= CGMCC 1.12929T = JCM 30114T). It is also proposed that Sphingopyxis contaminans should be reclassified as a member of the genus Sphingorhabdus. PMID- 29030753 TI - Successful implementation of Virtual Environment for Radiotherapy Training (VERT) in Medical Physics education: The University of Sydney's initial experience and recommendations. AB - This report outlines the University of Sydney's initial experience with the Virtual Environment for Radiotherapy Training (VERT) system in the Master of Medical Physics program. VERT is a commercially available system, simulating linear accelerators, patient computed tomography (CT) sets, plans and treatment delivery. It was purpose built for radiation therapy (RT) education and offers learners the opportunity to gain knowledge and skills within an interactive, risk free environment. The integration of VERT into the RT physics module of the Master of Medical Physics program was intended to enhance student knowledge and skills relevant to the curriculum's learning objectives, and to alleviate some of the burden associated with student access to clinical equipment. Three VERT practical sessions were implemented: "RT treatment planning systems", "(CT) Anatomy for physicists" and "Linear accelerator measurements". Our experience and student evaluations were positive and demonstrated the viability of VERT for medical physics (MP) student education. We anticipate that integration of VERT into MP teaching is a valuable addition to traditional methods and can aid MP students' understanding and readiness for practice. Additional evaluations should be conducted to ascertain VERT's role in delivering efficient quantity and quality of MP education, and its potential in alleviating burdens placed on clinical departments. PMID- 29030754 TI - Postural lung recruitment assessed by lung ultrasound in mechanically ventilated children. AB - BACKGROUND: Atelectasis is a common finding in mechanically ventilated children with healthy lungs. This lung collapse cannot be overcome using standard levels of positive end-expiratory pressure (PEEP) and thus for only individualized lung recruitment maneuvers lead to satisfactory therapeutic results. In this short communication, we demonstrate by lung ultrasound images (LUS) the effect of a postural recruitment maneuver (P-RM, i.e., a ventilatory strategy aimed at reaerating atelectasis by changing body position under constant ventilation). RESULTS: Data was collected in the operating room of the Hospital Privado de Comunidad, Mar del Plata, Argentina. Three anesthetized children undergoing mechanical ventilation at constant settings were sequentially subjected to the following two maneuvers: (1) PEEP trial in the supine position PEEP was increased to 10 cmH2O for 3 min and then decreased to back to baseline. (2) P-RM patient position was changed from supine to the left and then to the right lateral position for 90 s each before returning to supine. The total P-RM procedure took approximately 3 min. LUS in the supine position showed similar atelectasis before and after the PEEP trial. Contrarily, atelectasis disappeared in the non dependent lung when patients were placed in the lateral positions. Both lungs remained atelectasis free even after returning to the supine position. CONCLUSIONS: We provide LUS images that illustrate the concept and effects of postural recruitment in children. This maneuver has the advantage of achieving recruitment effects without the need to elevate airways pressures. PMID- 29030755 TI - Social-ecological system responses to Hurricane Sandy in the Hudson-Raritan Estuary. AB - The impact of Hurricane Sandy on the Hudson-Raritan estuary (HRE) provided a valuable case study for exploring interactions between long-term environmental degradation, new climatic disturbance stressors, and human behavioral responses. We extend previous research on the ecological effects of major storms to compare water quality and biological parameters three years before and three years after Hurricane Sandy and consider how ecosystem shifts relate to anglers' perceptions. Results indicate that water clarity and nutrients returned to pre-storm conditions in about one year, while shifts in the biological community, including a significant increase in harmful algal species and declines in zooplankton and Atlantic menhaden, persisted for multiple years, and anglers continued to fish amidst ecosystem decline. Biotic recovery time in the HRE was longer than reports for other shallow estuaries frequently disturbed by hurricanes. Ecological and social responses suggest that the post-storm regime shifts and continued fishing pressure could further environmental degradation. PMID- 29030756 TI - A Herald of Plasma Cell Myeloma: A Report of Malignant Plasma Cells Identified in Parathyroid Adenoma and a Review of Non-parathyroid Malignancies in Parathyroid Glands. AB - Involvement of the parathyroid glands by non-parathyroid neoplasia is an infrequent event. Rare cases of metastases to the parathyroid gland have been reported in parathyroidectomies and autopsies of patients with known solid or hematopoietic malignancies. Here, we present a case of atypical clonal plasma cells incidentally identified within a parathyroid adenoma resected for hyperparathyroidism and hypercalcemia, which served as the sentinel event for a subsequent diagnosis of plasma cell myeloma. To our knowledge, this is the only reported case of a hematopoietic malignancy involving a parathyroid adenoma and the only reported case of malignant hematopoietic cells initially detected in parathyroidectomy. PMID- 29030757 TI - Hemispheric asymmetry of liking for representational and abstract paintings. AB - Although the neural correlates of the appreciation of aesthetic qualities have been the target of much research in the past decade, few experiments have explored the hemispheric asymmetries in underlying processes. In this study, we used a divided visual field paradigm to test for hemispheric asymmetries in men and women's preference for abstract and representational artworks. Both male and female participants liked representational paintings more when presented in the right visual field, whereas preference for abstract paintings was unaffected by presentation hemifield. We hypothesize that this result reflects a facilitation of the sort of visual processes relevant to laypeople's liking for art specifically, local processing of highly informative object features-when artworks are presented in the right visual field, given the left hemisphere's advantage in processing such features. PMID- 29030758 TI - The perceptual wink model of non-switching attentional blink tasks. AB - The attentional blink (AB) is a temporary deficit for a second target (T2) when that target appears after a first target (T1). Although sophisticated models have been developed to explain the substantial AB literature in isolation, the current study considers how the AB relates to perceptual dynamics more broadly. We show that the time-course of the AB is closely related to the time course of the transition from positive to negative repetition priming effects in perceptual identification. Many AB tasks involve a switch between a T1 defined in one manner and a T2 defined in a different manner. Other AB tasks are non-switching, with all targets belonging to the same well-known category (e.g., letter targets versus number distractors) or sharing the same perceptual feature. We propose that these non-switching AB tasks reflect perceptual habituation for the target defining attribute; thus, a 'perceptual wink', with perception of one attribute (target identity) undisturbed while perception of another (target detection) is impaired. On this account, the immediate benefit following T1 (lag-1 sparing) reflects positive repetition priming and the subsequent deficit (the blink) reflects negative repetition priming for the realization that a target occurred. In developing the perceptual wink model, we extended the nROUSE model of perceptual priming to explain the results of two new experiments combining the AB and identity repetitions. This establishes important connections between non switching AB tasks and perceptual dynamics. PMID- 29030759 TI - Localizing semantic interference from distractor sounds in picture naming: A dual task study. AB - In this study we explored the locus of semantic interference in a novel picture sound interference task in which participants name pictures while ignoring environmental distractor sounds. In a previous study using this task (Madebach, Wohner, Kieseler, & Jescheniak, in Journal of Experimental Psychology: Human Perception and Performance, 43, 1629-1646, 2017), we showed that semantically related distractor sounds (e.g., BARKINGdog) interfere with a picture-naming response (e.g., "horse") more strongly than unrelated distractor sounds do (e.g., DRUMMINGdrum). In the experiment reported here, we employed the psychological refractory period (PRP) approach to explore the locus of this effect. We combined a geometric form classification task (square vs. circle; Task 1) with the picture sound interference task (Task 2). The stimulus onset asynchrony (SOA) between the tasks was systematically varied (0 vs. 500 ms). There were three central findings. First, the semantic interference effect from distractor sounds was replicated. Second, picture naming (in Task 2) was slower with the short than with the long task SOA. Third, both effects were additive-that is, the semantic interference effects were of similar magnitude at both task SOAs. This suggests that the interference arises during response selection or later stages, not during early perceptual processing. This finding corroborates the theory that semantic interference from distractor sounds reflects a competitive selection mechanism in word production. PMID- 29030760 TI - Patient-specific dosimetry of 99mTc-HYNIC-Tyr3-Octreotide in children. AB - BACKGROUND: Technetium-99m-hydrazinonicotinamide-Tyr3-octreotide (99mTc-HYNIC TOC) is recognized as a promising radiopharmaceutical for diagnosing neuroendocrine tumors (NETs). However, 99mTc-HYNIC-TOC dosimetry has been investigated only for adults. As pediatric radionuclide therapies become increasingly common, similar dosimetric studies for children are urgently needed. The aim of this study is to report personalized image-based biodistributions and dosimetry evaluations for children studies performed using 99mTc-HYNIC-TOC and to compare them with those from adult subjects. Eleven children/teenage patients with suspected or diagnosed NETs were enrolled. Patient imaging included a series of 2-3 whole-body planar scans and SPECT/CT performed over 2-24 h after the 99mTc HYNIC-TOC injections. The time-integrated activity coefficients (TIACs) were obtained from the hybrid planar/SPECT technique. Patient-specific doses were calculated using both the voxel-level and the organ-level approaches. Estimated children doses were compared with adults' dosimetry. RESULTS: Pathologic uptake was observed in five patients. TIACs for normal organs with significant uptakes, i.e., kidneys, spleen, and liver, were similar to adults' TIACs. Using the voxel level approach, the average organ doses for children were 0.024 +/- 0.009, 0.032 +/- 0.017, and 0.017 +/- 0.007 mGy/MBq for the kidneys, spleen, and liver, respectively, which were 30% larger than adults' doses. Similar values were obtained from the organ-level dosimetry when using OLINDA with adapted organ masses. Tumor doses were 0.010-0.024 mGy/MBq. However, cross-organ contributions were much larger in children than in adults, comprising about 15-40% of the total organ/tumor doses. No statistical differences were found between mean doses and dose distributions in patients with and without pathologic uptakes. CONCLUSION: Although the children TIACs were similar to those in adults, their doses were about 30% higher. No significant correlation was found between the children's doses and their ages. However, substantial inter-patient variability in radiotracer uptake, indicating disparity in expression of somatostatin receptor between different patients, emphasizes the importance and necessity of patient specific dosimetry for clinical studies. PMID- 29030761 TI - Monitoring the effects of a lepidopteran insecticide, Flubendiamide, on the biology of a non-target dipteran insect, Drosophila melanogaster. AB - Various organisms are adversely affected when subjected to chronic fluoride exposure. This highly electronegative ion present in several insecticide formulations is found to be lethal to target pests. In the present study, Drosophila melanogaster is treated with sub-lethal concentrations of a diamide insecticide formulation, Flubendiamide. Chronic exposure to the diamide (0.5-100 MUg/mL) was found to be responsible for increase in fluoride ion concentration in larval as well as adult body fluid. Interestingly, 100 MUg/mL Flubendiamide exposure resulted in 107 and 298% increase in fluoride ion concentration whereas only 23 and 52% of Flubendiamide concentration increase in larval and adult body fluid, respectively. Further, in this study, selected life cycle parameters like larval duration, pupal duration and emergence time showed minimal changes, whereas percentage of emergence and fecundity revealed significant treatment associated variation. It can be noted that nearly 79% reduction in fecundity was observed with 100 MUg/mL Flubendiamide exposure. The variations in these parameters indicate probable involvement of fluoride ion in detectable alterations in the biology of the non-target model insect, D. melanogaster. Furthermore, the outcomes of life cycle study suggest change in resource allocation pattern in the treated flies. The altered resource allocation might have been sufficient to resist changes in selective life cycle parameters, but it could not defend the changes in fecundity. The significant alterations indicate a definite trade-off pattern, where the treated individuals happen to compromise. Thus, survival is apparently taking an upper hand in comparison to reproductive ability in response to Flubendiamide exposure. Graphical abstract The figure demonstrates increase in Fluoride and Flubendiamide concentrations in Drosophila melanogaster after chronic sub-lethal exposure to Flubendiamide. Treatment induced alterations in larval and pupal duration, reduction in fecundity and alteration in male-female ratio is also observed. PMID- 29030762 TI - Genetic diversity of avenin-like b genes in Aegilops tauschii Coss. AB - Avenin-like storage proteins influence the rheological properties and processing quality in common wheat, and the discovery of new alleles will benefit wheat quality improvement. In this study, 13 avenin-like b alleles (TaALPb7D-A-M) were discovered in 108 Aegilops tauschii Coss. accessions. Ten alleles were reported for the first time, while the remaining three alleles were the same as alleles in other species. A total of 15 nucleotide changes were detected in the 13 alleles, resulting in only 11 amino acid changes because of synonymous mutations. Alleles TaALPb7D-E, TaALPb7D-G, and TaALPb7D-J encoded the same protein. These polymorphic sites existed in the N-terminus, Repetitive region (Left), Repetitive region (Right) and C-terminus domains, with no polymorphisms in the signal peptide sequence nor in those encoding the 18 conserved cysteine residues. Phylogenetic analysis divided the TaALPb7Ds into four clades. The Ae. tauschii alleles were distributed in all four clades, while the alleles derived from common wheat, TaALPb7D-G and TaALPb7D-C, belonged to clade III and IV, respectively. Alleles TaALPb7D-G and TaALPb7D-C were the most widely distributed, being present in nine and six countries, respectively. Iran and Turkey exhibited the highest genetic diversity with respect to TaALPb7D alleles, accessions from these countries carrying seven and six alleles, respectively, which implied that these countries were the centers of origin of the avenin-like b gene. The new alleles discovered and the phylogenetic analysis of avenin-like b genes will provide breeding materials and a theoretical basis for wheat quality improvement. PMID- 29030763 TI - Conservation and genetic characterisation of common bean landraces from Cilento region (southern Italy): high differentiation in spite of low genetic diversity. AB - Since its introduction from Central-South America to Italy almost 500 years ago, the common bean (Phaseolus vulgaris L.) was largely cultivated across the peninsula in hundreds of different landraces. However, globalisation and technological modernisation of agricultural practices in the last decades promoted the cultivation of few varieties at the expense of traditional and local agro-ecotypes, which have been confined to local markets or have completely disappeared. The aim of this study was to evaluate the genetic diversity and differentiation in 12 common bean landraces once largely cultivated in the Cilento region (Campania region, southern Italy), and now the object of a recovery program to save them from extinction. The analysis conducted using 13 nuclear microsatellite loci in 140 individuals revealed a high degree of homozygosity within each landrace and a strong genetic differentiation that was reflected in the success in assigning individuals to the source landrace. On the contrary, internal transcribed spacers 1 and 2, analysed in one individual per landrace, were highly similar among common bean landraces but allowed the identification of a cowpea variety (Vigna unguiculata Walp.), a crop largely cultivated in the Old World before the arrival of common bean from Americas. In conclusion, our study highlighted that conservation of landraces is important not only for the cultural and socio-economic value that they have for local communities, but also because the time and conditions in which they have been selected have led to that genetic distinctiveness that is at the basis of many potential agronomical applications and dietary benefits. PMID- 29030764 TI - Effect of including a gas layer on the gel formation process during the drying of a polymer solution. AB - In this paper, we study the influence of the upper gas layer on the drying and gelation of a polymer solution. The gel is formed due to the evaporation of the binary solution into (inert) air. A one-dimensional model is proposed, where the evaporation flux is more realistically described than in previous studies. The approach is based on general thermodynamic principles. A composition-dependent diffusion coefficient is used in the liquid phase and the local equilibrium hypothesis is introduced at the interface to describe the evaporation process. The results show that the high thickness of the gas layer reduces evaporation, thus leading to longer drying times. Our model is also compared with more phenomenological descriptions of evaporation, for which the mass flux through the interface is described by the introduction of a Peclet number. A global agreement is found for appropriate values of the Peclet numbers and our model can thus be considered as a tool allowing to link the value of the empirical Peclet number to the physics of the gas phase. Finally, in contrast with other models, our approach emphasizes the possibility of very fast gelation at the interface, which could prevent all Marangoni convection during the drying process. PMID- 29030765 TI - Cerebrospinal fluid analysis and the determination of oligoclonal bands. AB - This document presents the guidelines for the cerebrospinal fluid (CSF) analysis and the determination of oligoclonal bands (OCBs) as pivotal tests in neuroinflammatory pathologies of the central nervous system. The guidelines have been developed following a consensus process built on questionnaire-based surveys, internet contacts, and discussions at workshops of the sponsoring Italian Association of Neuroimmunology (AINI) congresses. Essential clinical information on the pathologies in which the CSF analysis is indicated, and, particularly, on those characterized by the presence of OCBs in the intrathecal compartment, indications and limits of CSF analysis and OCB determination, instructions for result interpretation, and agreed laboratory protocols (Appendix) are reported for the communicative community of neurologists and clinical pathologists. PMID- 29030766 TI - Diagnostics of paraneoplastic neurological syndromes. AB - This document presents the guidelines for onconeural antibody testing that have been developed following a consensus process built on questionnaire-based surveys, internet contacts, and discussions at workshops of the sponsoring Italian Association of Neuroimmunology (AINI) congresses. Essential clinical information on paraneoplastic neurological syndromes, indications and limits of onconeural antibody testing, instructions for result interpretation, and an agreed laboratory protocol (Appendix) are reported for the communicative community of neurologists and clinical pathologists. PMID- 29030767 TI - Diagnostics of autoimmune encephalitis associated with antibodies against neuronal surface antigens. AB - This document presents the guidelines for testing antibodies against neuronal surface antigens that have been developed following a consensus process built on questionnaire-based surveys, internet contacts, and discussions at workshops of the sponsoring Italian Association of Neuroimmunology (AINI) congresses. Essential clinical information on autoimmune encephalitis associated with antibodies against neuronal surface antigens, indications and limits of testing for such antibodies, instructions for result interpretation, and an agreed laboratory protocol (Appendix A) are reported for the communicative community of neurologists and clinical pathologists. PMID- 29030768 TI - Diagnostics of the neuromyelitis optica spectrum disorders (NMOSD). AB - This document presents the guidelines for anti-aquaporin-4 (AQP4) antibody testing that has been developed following a consensus process built on questionnaire-based surveys, internet contacts, and discussions at workshops of the sponsoring Italian Association of Neuroimmunology (AINI) congresses. Essential clinical information on neuromyelitis optica spectrum disorders, indications and limits of anti-AQP4 antibody testing, instructions for result interpretation, and an agreed laboratory protocol (Appendix) are reported for the communicative community of neurologists and clinical pathologists. PMID- 29030769 TI - Diagnostics of dysimmune peripheral neuropathies. AB - This document presents the guidelines for anti-ganglioside antibody testing that have been developed following a consensus process built on questionnaire-based surveys, internet contacts, and discussions at workshops of the sponsoring Italian Association of Neuroimmunology (AINI) congresses. Main clinical information on dysimmune peripheral neuropathies, indications and limits of anti ganglioside antibody testing, instructions for result interpretation, and an agreed laboratory protocol (Appendix) are reported for the communicative community of neurologists and clinical pathologists. PMID- 29030770 TI - Diagnostics of myasthenic syndromes: detection of anti-AChR and anti-MuSK antibodies. AB - This paper presents the Italian guidelines for autoantibody testing in myasthenia gravis that have been developed following a consensus process built on questionnaire-based surveys, internet contacts and discussions during dedicated workshops of the sponsoring Italian Association of Neuroimmunology (AINI). Essential clinical information on myasthenic syndromes, indications and limits of antibody testing, instructions for result interpretation and an agreed laboratory protocol (Appendix) are reported for the communicative community of neurologists and clinical pathologists. PMID- 29030771 TI - A bridge between evidence-based laboratory diagnostics and research in neuroimmunology: why standardizations and guidelines matter. PMID- 29030772 TI - Diagnostics of anti-MAG antibody polyneuropathy. AB - This document presents the guidelines for anti-myelin-associated glycoprotein (MAG) antibody testing that have been developed following a consensus process built on questionnaire-based surveys, internet contacts, and discussions at workshops of sponsoring Italian Association of Neuroimmunology (AINI) congresses. The main clinical information on anti-MAG antibody polyneuropathy, indications and limits of anti-MAG antibody testing, instructions for result interpretation, and an agreed laboratory protocol (Appendix) are reported for the communicative community of neurologists and clinical pathologists. PMID- 29030773 TI - Outcome prediction with the revised American joint committee on cancer staging system and American thyroid association guidelines for thyroid cancer. AB - BACKGROUND: Several staging systems have been developed to predict the risk of mortality in patients with differentiated thyroid cancer (DTC). However, none of them have been shown to be clearly superior to the other. METHODS: We compared the patient outcome predictability of recently revised staging systems predictability of patient outcome using data from The Cancer Genome Atlas. To set a comparison among American Joint Committee on Cancer (AJCC)/Union for International Cancer Control (UICC) staging 7th, 8th editions, American Thyroid Association guidelines 2009 and 2015, concordance index (c-index), Akaike information criterion (AIC), Bayesian information criterion (BIC), and Brier score were applied to quantify the predictive ability of a survival model, to select the statistical model, and to measure the accuracy of probabilistic predictions. RESULTS: A total of 457 patients with papillary thyroid cancer having a mean age of 45.9 years were included in this study (120 males, 337 females). Among these patients, 43 (9.4%) experienced recurrence/progression during the follow-up (591.2 +/- 833.5 months). Among the models used, the AJCC/UICC 8th edition, which showed the highest c-index and lowest AIC, BIC, and Brier score, was identified as the best among the models used. CONCLUSION: AJCC/UICC 8th edition predicted patient outcome more accurately than the other staging systems. PMID- 29030774 TI - Effects of growth hormone therapy on bone density and fracture risk in age related osteoporosis in the absence of growth hormone deficiency: a systematic review and meta-analysis. AB - PURPOSE: In adults, growth hormone deficiency (GHD) has been associated with low bone mineral density (BMD), an effect counteracted by growth hormone (GH) replacement. Whether GH is beneficial in adults with age-related bone loss and without hypopituitarism is unclear. METHODS: We conducted a systematic literature search using Medline, Embase and the Cochrane Register of Controlled Trials. We extracted and analyzed data according to the bone outcome included [bone mineral content (BMC), BMD, and bone biomarker, fracture risk]. We performed a meta analysis when possible. RESULTS: We included eight studies. Seven randomized 272 post-menopausal women, 61-69 years, to GH or control, for 6-24 months, and the eighth was an extension trial. Except for one study, all women received concurrent osteoporosis therapies. There was no significant effect of GH, as compared to control, on BMD at the lumbar spine (Weighted mean difference WMD = 0.01 [-0.04, 0.02]), total hip (WMD = 0 [-0.05, 0.06]) or femoral neck (WMD = 0 [ 0.03, 0.04]). Similarly, no effect was seen on BMC. GH significantly increased the bone formation marker procollagen type-I carboxy-terminal propeptide (PICP) (WMD = 14.03 [2.68, 25.38]). GH resulted in a trend for increase in osteocalcin and in bone resorption markers. Patients who received GH had a significant decrease in fracture risk as compared to control (RR = 0.63 [0.46, 0.87]). Reported adverse events were not major, mostly related to fluid retention. CONCLUSION: GH may not improve bone density in women with age-related bone loss but may decrease fracture risk. Larger studies of longer duration are needed to further explore these findings in both genders, and to investigate the effect of GH on bone quality. PMID- 29030775 TI - Improvement in pregnancy outcomes in couples with immunologically male infertility undergoing prednisolone treatment and conventional in vitro fertilization preceded by sperm penetration assay: a randomized controlled trial. AB - PURPOSE: Anti-sperm antibodies (ASA) in men impair not only sperm motility but also fertilization and conception. However, utilization of corticosteroids to suppress ASA has shown variable pregnancy outcomes. This controversy is also extended to include the usefulness of conventional in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in treatments of men with ASA. This study was therefore designed to define factors contributing to these inconsistent results. METHODS: Infertile men having ASA (n = 241) were randomly assigned for treatment with or without prednisolone for three cycles each of 21 days of their partner's menstrual cycles. Control and treated men underwent then human sperm penetration assay (SPA), of hamster oocytes, to diagnose men with impaired sperm fusogenic capacity. Men with positive or negative SPA results were admitted to conventional IVF or ICSI programs, respectively. RESULTS: Treated patients had improved sperm motility and progressive motility when compared to control patients (P < 0.001). Fertilization (P = 0.04), embryo cleavage (P = 0.01), and chemical (P = 0.02) and clinical (P = 0.04) pregnancy rates were higher in treated patients than in control patients undergoing conventional IVF but not ICSI cycles. CONCLUSIONS: Men with ASA may also have compromised sperm fusogenic capacity, which can mask the clinical significance of corticosteroids. Corticosteroid administration in men with ASA, but without compromised sperm fusogenic capacity, improves conventional IVF but not ICSI outcomes; the reason being that ICSI bypasses issues of compromised fusogenic capacity. Inclusion of SPA in infertility clinics that offer both conventional IVF and ICSI services may be useful to identify which patients with ASA benefit from corticosteroid treatments. PMID- 29030776 TI - Oscillations of Cerium Oxidation State Driven by Oxygen Diffusion in Colloidal Nanoceria (CeO2 - x ). AB - The redox performance of CeO2 - x nanocrystals (nanoceria) is always accompanied by the switching of cerium oxidation state between Ce3+ and Ce4+. We monitored Ce3+ -> Ce4+ oxidation of nanoceria stimulated by oxidant in aqueous colloidal solutions controlling the luminescence of Ce3+ ions located at different distances from nanoceria surface. The observed Ce3+ luminescence changes indicate that Ce3+ -> Ce4+ reaction develops inside nanoceria being triggered by the diffusing oxygen originated from the water splitting on oxidized nanoceria surface. We present the first observation of the pronounced oscillations of Ce3+ luminescence intensity arising from Ce3+ <-> Ce4+ reversible switching. This threshold effect is to be driven by uptaking and releasing oxygen by nanoceria, when the concentration of oxygen vacancies in nanoceria lattice, oxidant concentration in colloidal solution, and temperature reach certain critical values. So, the ability of nanoceria to uptake and release oxygen depending on the environmental redox conditions really makes it the self-sufficient eternal antioxidant. PMID- 29030777 TI - Energy transfer and trapping in Synechococcus WH 7803. AB - Excitation energy transfer (EET) and trapping in Synechococcus WH 7803 whole cells and isolated photosystem I (PSI) complexes have been studied by time resolved emission spectroscopy at room temperature (RT) and at 77 K. With the help of global and target analysis, the pathways of EET and the charge separation dynamics have been identified. Energy absorbed in the phycobilisome (PB) rods by the abundant phycoerythrin (PE) is funneled to phycocyanin (PC645) and from there to the core that contains allophycocyanin (APC660 and APC680). Intra-PB EET rates have been estimated to range from 11 to 68/ns. It was estimated that at RT, the terminal emitter of the phycobilisome, APC680, transfers its energy at a rate of 90/ns to PSI and at a rate of 50/ns to PSII. At 77 K, the redshifted Chl a states in the PSI core were heterogeneous, with maximum emission at 697 and 707 nm. In 72% of the PSI complexes, the bulk Chl a in equilibrium with F697 decayed with a main trapping lifetime of 39 ps. PMID- 29030778 TI - Acceleration of the excitation decay in Photosystem I immobilized on glass surface. AB - Femtosecond transient absorption was used to study excitation decay in monomeric and trimeric cyanobacterial Photosystem I (PSI) being prepared in three states: (1) in aqueous solution, (2) deposited and dried on glass surface (either conducting or non-conducting), and (3) deposited on glass (conducting) surface but being in contact with aqueous solvent. The main goal of this contribution was to determine the reason of the acceleration of the excitation decay in dried PSI deposited on the conducting surface relative to PSI in solution observed previously using time-resolved fluorescence (Szewczyk et al., Photysnth Res 132(2):111-126, 2017). We formulated two alternative working hypotheses: (1) the acceleration results from electron injection from PSI to the conducting surface; (2) the acceleration is caused by dehydration and/or crowding of PSI proteins deposited on the glass substrate. Excitation dynamics of PSI in all three types of samples can be described by three main components of subpicosecond, 3-5, and 20-26 ps lifetimes of different relative contributions in solution than in PSI substrate systems. The presence of similar kinetic components for all the samples indicates intactness of PSI proteins after their deposition onto the substrates. The kinetic traces for all systems with PSI deposited on substrates are almost identical and they decay significantly faster than the kinetic traces of PSI in solution. We conclude that the accelerated excitation decay in PSI-substrate systems is caused mostly by dense packing of proteins. PMID- 29030779 TI - Recurrence After Operative Treatment of Adhesive Small-Bowel Obstruction. AB - BACKGROUND: Postoperative adhesions are a common cause of small-bowel obstruction, and up to 53% of patients operated on for adhesive small-bowel obstruction (ASBO) experience recurrence. The primary aim of this study was to identify predictors for recurrence of ASBO. METHODS: We reviewed medical records including operation descriptions from patients who underwent emergency surgery due to ASBO at our institution between 2004 and 2013. Information on the peri- and postoperative periods, including conservatively and surgically treated recurrent ASBO, were obtained from medical records. RESULTS: In total, 478 patients were included in the study. Of these, 58 (12.1%) patients experienced recurrence of ASBO during median 2.2 years follow-up. Female gender (hazard ratio [HR] 2.00, P = 0.023), multiple/matted adhesions (HR 1.72, P = 0.046), and fascial dehiscence (HR 3.26, P = 0.009) were associated with increased risk of recurrence. Conversely, intestinal resection decreased the risk of recurrence (HR 0.47, P = 0.036). CONCLUSIONS: The overall recurrence rate after surgically treated ASBO was 12.1%, and the risk of recurrence was persistent several years after index operation. Factors associated with an increased risk were female gender, multiple/matted adhesions, and fascial dehiscence. PMID- 29030780 TI - Endoscopic Treatment Versus Esophagectomy for Early-Stage Esophageal Cancer: a Population-Based Study Using Propensity Score Matching. AB - BACKGROUND: Endoscopic treatment (ET) is an alternative for selected patients with early-stage esophageal cancer. The primary aim of this study was to compare overall survival (OS) and esophageal cancer-specific survival (ECSS) of such patients after ET or esophagectomy. METHODS: Propensity score matching (PSM) and Cox regression analysis were used to compare OS and ECSS of 2661 patients with ET or esophagectomy for early-stage (Tis-T1N0M0) disease. Patient information was retrieved from the Surveillance, Epidemiology, and End Results database. Subgroup analyses by T stage and tumor histology were also performed. RESULTS: There were significant differences in age, sex ratio, year of diagnosis, cancer site, cancer stage, differentiation grade, tumor histology, tumor size, lymph nodes examined, and receipt of radiation therapy in the two treatment groups. PSM created 621 patient pairs. Multivariate analysis found no significant differences in OS (HR = 1.216, P = 0.279) or ECSS (HR = 0.692, P = 0.179) in the esophagectomy and ET groups. The results were similar for subgroup analyses limited to stage Tis, T1a, and T1b patients. ET was also associated with similar OS and ECSS in esophageal adenocarcinoma and squamous cell carcinoma patients. CONCLUSION: In this population-based study using PSM, patients with stage Tis and T1N0M0 esophageal cancer with ET had OS and ECSS comparable to those treated by esophagectomy after adjusting for clinical variables. The results support ET as an alternative to esophagectomy in early esophageal cancer. PMID- 29030781 TI - Clinical and imaging features in lung torsion and description of a novel imaging sign. AB - PURPOSE: We set out to identify the clinical and imaging features seen in lung torsion, a rare but emergent diagnosis leading to vascular compromise of a lobe or entire lung. METHODS: We retrospectively identified 10 patients with torsion who underwent chest CT. We evaluated each case for the presence of bronchial obstruction and abnormal fissure orientation. In seven patients who underwent contrast-enhanced CTs, we assessed for the presence of the antler sign, a novel sign seen on axial images demonstrating abnormal curvature of the artery and branches originating on one side. RESULTS: Five patients had right middle lobe (RML) torsion after right upper lobectomy, and the remaining occurred following thoracentesis, aortic surgery, or spontaneously. Chest CTs demonstrated bronchial obstruction in eight cases and presence of abnormal fissure orientation in four patients. The antler sign was present in three patients with whole-lung torsion and one patient with lobar torsion; vascular swirling was seen on 3-D images in all seven patients with contrast-enhanced CTs. CONCLUSIONS: Lung parenchymal imaging findings in lung torsion may be non-specific. Identification of the antler sign on contrast-enhanced chest CT, in combination with other signs such as bronchial obstruction and abnormal fissure orientation, indicates rotation of the bronchovascular pedicle. The presence of this sign should prompt further evaluation with 3-dimensional reconstructions. PMID- 29030782 TI - Does radiography still have a significant diagnostic role in evaluation of acute traumatic wrist injuries? A prospective comparative study. AB - AIM: The aim of this study was to evaluate and compare the diagnostic role of radiography and multi-detector computed tomography (MDCT) in acute traumatic wrist injuries. PATIENTS AND METHODS: One hundred sixty-eight patients with acute wrist trauma were enrolled in our study. All patients had submitted to radiography and MDCT within 24 h after wrist trauma. The diagnostic role of radiography and MDCT was evaluated and compared. The effective radiation dose of the two techniques was calculated. RESULTS: One hundred four (61.9%) and 84 (50%) out of 168 patients had acute wrist injuries on MDCT and radiographic examinations, respectively. Using MDCT results as a reference standard, the sensitivity, specificity, and accuracy of radiography in the diagnosis of distal radius fracture were 85.7, 96, and 92.3%, respectively, and in the diagnosis of scaphoid fracture were 62.5, 97.3, and 88.5%, respectively. As regards detection of acute traumatic wrist injuries, we observed no significant difference between the two modalities (P = 0.1347); in addition, both modalities had high consistency (kappa = 0.8359). The mean effective radiation dose of radiography was 0.01 mSv and of MDCT was 0.1 mSv. CONCLUSION: Radiography still remains as the first screening tool in acute traumatic wrist injuries and MDCT is complementary to it and used as a problem-solving tool or for preoperative planning. PMID- 29030783 TI - The Head, the Heart, and Hysteria in Jeanne Flore's Tales and Trials of Love (c. 1542). AB - This essay examines a challenge to common literary representations of female mental illness in the Early Modern period-the hysterical woman-in a collection of French short stories contemporary to Vesalius's De Fabrica: Jeanne Flore's Tales and Trials of Love (1542). Jeanne Flore's tales depict several mentally disturbed female protagonists, young women prone to paroxysms of madness and self mutilation. This study maintains that while Tales and Trials of Love superficially participates in the literary tradition that grew out of those accepted social and medical beliefs, it also questions the long-accepted paradigm of female hysteria and points to a shift in the socio-medical climate. Jeanne Flore's fictional narratives suggest that mental illness no longer consists in the realignment of a uterine imbalance, but rather in the telling of personal stories, a precursor to psychoanalysis and narrative medicine. PMID- 29030784 TI - Anti-TNF-alpha antibody alleviates insulin resistance in rats with sepsis-induced stress hyperglycemia. AB - PURPOSE: To explore the effects and mechanisms of anti-tumor necrosis factor alpha (TNF-alpha) antibody on insulin resistance (IR) in rats with sepsis-induced stress hyperglycemia. METHODS: The sepsis-induced stress hyperglycemic rat model was constructed by cecal ligation and puncture combined with the intraperitoneal injection of lipopolysaccharide. The rats were randomly divided into six groups: normal control (NC) group, surgical rats (Cntl) group, high-dose anti-TNF-alpha antibody therapy (TNF, 6 mg/kg) group, low-dose anti-TNF-alpha antibody therapy (Tnf, 3 mg/kg) group, insulin therapy (INS) group, and INS + Tnf group. The blood glucose and serum insulin concentrations were detected, followed by analysis of intraperitoneal glucose tolerance test (IPGTT) and hyperinsulinemic-euglycemic clamp. Finally, the expression levels of phospho-Akt (p-Akt), Akt, p-mTOR, mTOR, nuclear factor-kappaB (NFkappaB), I kappa beta kinase (IKKbeta), and suppressor of cytokine signaling (SOCS-3) were detected by western blotting. RESULTS: There was no significant difference in blood glucose concentrations among these groups, while the serum insulin concentration in TNF and Tnf groups was lower than that in the Cntl group at postoperative 6 h (P < 0.05). IPGTT analysis revealed that blood glucose level was lower in the TNF group than that in the Cntl group (P < 0.05). The glucose infusion rate in the Cntl group was lower than that in the Tnf and TNF groups (P < 0.05). The p-Akt/Akt, p-mTOR/mTOR ratio, and expression levels of NFkappaB, IKKbeta and SOCS-3 were lower in the drug intervention than that in the Cntl group (P < 0.05). CONCLUSIONS: Anti-TNF-alpha antibody could reduce IR by inhibiting AKt/mTOR signaling pathway and the expression levels of NFkappaB, IKKbeta, and SOCS-3 in rats with sepsis-induced stress hyperglycemia. PMID- 29030785 TI - Usefulness of abbreviated breast MRI screening for women with a history of breast cancer surgery. AB - PURPOSE: We investigated the usefulness of abbreviated breast MRI (AB-MRI), including fat-suppressed T2-weighted imaging, pre- and postcontrast image acquisition, and subtracted maximum-intensity projection imaging, for the screening of women with a history of breast cancer surgery. METHODS: Between October 2014 and March 2016, a total of 799 AB-MRI examinations were performed for 725 women with a history of breast cancer surgery. The image acquisition time was 8.5 min. Screening mammography, ultrasound, and AB-MRI were generally performed around the same time. The cancer detection rate, positive predictive values for recall and biopsy, sensitivity and specificity of screening MRI, and rate of malignancy belonging to each breast imaging reporting and data system (BI RADS) category were assessed. RESULTS: AB-MRI detected 12 malignancies in 12 women (15.0 cancers per 1000 cases). Seven of these 12 malignancies were initially invisible on ultrasound and mammography, although subsequent targeted ultrasound revealed lesions corresponding to the MRI-detected lesions. The positive predictive values for recall and biopsy and sensitivity and specificity values for screening MRI were 12.4, 61.5, 100, and 89.2%, respectively. The rates of malignancies belonging to categories 1, 2, 3, and 4 of the BI-RADS were 0, 0, 4.8, and 57.1%, respectively. CONCLUSIONS: The diagnostic performance of screening AB-MRI for women with a history of breast cancer surgery is acceptable, with the advantages of short examination and interpretation times and low costs. Thus, it could be used as a main screening modality that may replace conventional imaging in breast cancer survivors. PMID- 29030786 TI - Routine treatment and outcome of breast cancer in younger versus elderly patients: results from the SENORA project of the prospective German TMK cohort study. AB - PURPOSE: There is an ongoing discussion about 'undertreatment' of breast cancer in elderly patients. Due to low accrual into clinical trials, level 1 evidence is scarce. We report prospective data of elderly patients with breast cancer treated by medical oncologists in Germany. METHODS: The SENORA project within the prospective cohort study TMK (Tumour Registry Breast Cancer) was conducted in 82 centres from 2007-2015. Among 2316 patients, half were enrolled with curative and half with palliative treatment intention. Overall, 478 patients (21%) were aged >= 70. RESULTS: In the adjuvant setting, elderly patients aged >= 70 had more advanced tumour stages at diagnosis and a higher prevalence of comorbidities than younger patients. Elderly patients received adjuvant chemotherapy less frequently, yet the 3-year disease-free survival was similar (86% vs. 88%). In the palliative setting, elderly patients more frequently received endocrine therapy and less frequently chemotherapy. Their median overall survival [24.9 months, 95% CI (confidence interval) 20.0-30.2] was significantly shorter than that of younger patients (39.7 months, 95% CI 34.9-44.2). A Cox proportional hazards model showed a significantly increased risk of mortality for: age >= 70 at start of therapy, negative HR- or HER2-status, higher number of metastatic sites, more comorbidities and high tumour grading at diagnosis. CONCLUSIONS: Our results shed light on the routine treatment of elderly patients with breast cancer. A regression model demonstrated that age is but one of various prognostic factors determining the shorter overall survival of elderly patients. PMID- 29030787 TI - Armillifer-Infected Snakes Sold at Congolese Bushmeat Markets Represent an Emerging Zoonotic Threat. AB - African pythons (Pythonidae) and large vipers (Bitis spp.) act as definitive hosts for Armillifer armillatus and Armillifer grandis parasites (Crustacea: Pentastomida) in the Congo Basin. Since the proportion of snakes in bushmeat gradually increases, human pentastomiasis is an emerging zoonotic disease. To substantiate the significance of this threat, we surveyed snakes offered for human consumption at bushmeat markets in the Kole district, Democratic Republic of the Congo, for the presence of adult pentastomids. In Bitis vipers (n = 40), Armillifer spp. infestations exhibited an 87.5% prevalence and 6.0 median intensity. Parasite abundance covaried positively with viper length, but not with body mass. In pythons (n = 13), Armillifer spp. exhibited a 92.3% prevalence and 3.5 median intensity. The positive correlations between parasite abundance and python length or mass were statistically nonsignificant. Ninety-one percent of A. grandis were discovered in vipers and 97% of infected vipers hosted A. grandis, whereas 81% of A. armillatus specimens were found in pythons and 63% of infected pythons hosted A. armillatus. Thus, challenging the widespread notion of strict host specificity, we found 'reversed' infections and even a case of coinfection. In this study, we also gathered information about the snake consumption habits of different tribal cultures in the area. Infective parasite ova likely transmit to humans directly by consumption of uncooked meat, or indirectly through contaminated hands, kitchen tools or washing water. PMID- 29030788 TI - Viral Richness is Positively Related to Group Size, but Not Mating System, in Bats. AB - Characterizing host traits that influence viral richness and diversification is important for understanding wildlife pathogens affecting conservation and/or human health. Behaviors that affect contact rates among hosts could be important for viral diversification because more frequent intra- and inter-specific contacts among hosts should increase the potential for viral diversification within host populations. We used published data on bats to test the contact-rate hypothesis. We predicted that species forming large conspecific groups, that share their range with more heterospecifics (i.e., sympatry), and with mating systems characterized by high contact rates (polygynandry: multi-male/multi female), would host higher viral richness than species with small group sizes, lower sympatry, or low contact-rate mating systems (polygyny: single male/multi female). Consistent with our hypothesis and previous research, viral richness was positively correlated with conspecific group size although the relationship plateaued at group sizes of approximately several hundred thousand bats. This pattern supports epidemiological theory that, up to a point, larger groups have higher contact rates, greater likelihood of acquiring and transmitting viruses, and ultimately greater potential for viral diversification. However, contrary to our hypothesis, there was no effect of sympatry on viral richness and no difference in viral richness between mating systems. We also found no residual effect of host phylogeny on viral richness, suggesting that closely related species do not necessarily host similar numbers of viruses. Our results support the contact-rate hypothesis that intra-specific viral transmission can enhance viral diversification within species and highlight the influence of host group size on the potential of viruses to propagate within host populations. PMID- 29030789 TI - Foreign bodies in sigmoid colon diverticulosis. AB - This review addresses the management of sigmoid colon diverticular disease associated with foreign bodies. In addition, two novel cases are presented. One case describes the management of diverticular bleeding secondary to a chicken bone and the other case reports retrieval of a retained EndoRingsTM Device. The review identified 40 relevant publications including 50 subjects. Foreign bodies within sigmoid diverticular disease may be associated with inflammation, perforation, abscess and fistula. In current practice, diagnosis is often achieved with CT scan. Patients with colonic perforation or fistula generally require colonic resection. Patients with inflammation may merit conservative management, including colonoscopic foreign body retrieval. Chicken bones, tooth picks, and biliary stents have been reported in patients with inflammation, perforation and fistula, whereas all published patients with fish bone related diverticulosis complications experienced inflammation. Treatment might be best guided by the consequences of the foreign body rather than the nature of the underlying retained object. Diverticular bleeding secondary to a chicken bone was diagnosed at CT angiography and treated with colonoscopic snare retrieval of the bone and clipping of the bleeding diverticulum. The EndoRingsTM Device was retrieved with a colonoscopic balloon. PMID- 29030790 TI - Acculturation Gap Distress among Latino Youth: Prospective Links to Family Processes and Youth Depressive Symptoms, Alcohol Use, and Academic Performance. AB - Latino youth have higher rates of educational and mental health difficulties compared to peers from other racial/ethnic groups. To understand the factors related to such maladjustment, a mediational model linking youth report of parent youth acculturation gaps to prospective changes (from spring to fall semester) in youth report of academic performance, depressive symptoms and alcohol use via youth report of parent-youth conflict and family cohesion, was studied in a sample of 248 U.S.-and foreign-born Latino youth (Mage = 15.21 years; 50% female; 67% U.S.-born). Parent-youth acculturation gaps were associated with changes in youth academic performance across two semesters via their negative impact on family functioning. For U.S.-born youth, parent-youth acculturation gaps were also linked to changes in alcohol use via parent-adolescent conflict. Results provide some support for the acculturative gap hypotheses while unique findings across nativity groups suggest that such individual-level characteristics may serve as important sources of variation for Latino youth. PMID- 29030792 TI - A Universal Intervention Program Increases Ethnic-Racial Identity Exploration and Resolution to Predict Adolescent Psychosocial Functioning One Year Later. AB - Ethnic-racial identity formation represents a key developmental task that is especially salient during adolescence and has been associated with many indices of positive adjustment. The Identity Project intervention, which targeted ethnic racial identity exploration and resolution, was designed based on the theory that program-induced changes in ethnic-racial identity would lead to better psychosocial adjustment (e.g., global identity cohesion, self-esteem, mental health, academic achievement). Adolescents (N =215; Mage =15.02, SD =.68; 50% female) participated in a small-scale randomized control trial with an attention control group. A cascading mediation model was tested using pre-test and three follow-up assessments (12, 18, and 67 weeks after baseline). The program led to increases in exploration, subsequent increases in resolution and, in turn, higher global identity cohesion, higher self-esteem, lower depressive symptoms, and better grades. Results support the notion that increasing adolescents' ethnic racial identity can promote positive psychosocial functioning among youth. PMID- 29030793 TI - Right-sided Bochdalek hernia in an elderly adult: a case report with a review of surgical management. AB - BACKGROUND: Bochdalek hernias are one of the most common types of diaphragmatic hernia, with most cases diagnosed during the neonatal period. In contrast, diagnosis of a Bochdalek hernia in an adult is rare and is typically observed on the left side of the diaphragm. Even more rare is the diagnosis of a right-sided Bochdalek hernia in an adult, where there is concurrent visceral malformation in most cases. CASE PRESENTATION: We describe a case of an 89-year-old female who presented with abdominal pain. An abdominal computed tomography (CT) scan showed decreased intravenous contrast uptake and thickening of the wall of herniated small intestine through the right side of the diaphragm, which led to the diagnosis of a strangulated diaphragmatic hernia. The patient underwent emergent laparotomy and required a partial resection of the necrotic ileum and a hernia repair with direct closure. Interestingly, in this case, organ malformation was not observed. The patient was discharged approximately 2 weeks after surgery without complication. CONCLUSIONS: Adult right-sided Bochdalek hernia with strangulation in the absence of hepatic atrophy is a rare entity. Considering the severity of this condition, accurate diagnosis and proper treatment are needed. A tailored operative approach is required on an individual case basis. PMID- 29030794 TI - VEGF-A gene polymorphisms and responses to intravitreal ranibizumab treatment in patients with diabetic macular edema. AB - PURPOSE: To investigate the association between VEGF gene polymorphisms and the responses to treatment with intravitreal ranibizumab (IVR) in patients with diabetic macular edema (DME). METHODS: This prospective study, conducted at the Kutahya Dumlupinar University Faculty of Medicine, included 95 patients with DME that were treated with IVR and 32 patients without DME despite proliferative diabetic retinopathy (PDR). The participants were divided into three groups: DME with non-proliferative diabetic retinopathy, DME with PDR, and PDR without DME; patients with DME who were treated with IVR were further divided into two groups based on their response to the treatment. Each patient was genotyped for five single nucleotide variations (SNVs) in VEGF-A: rs2010963, rs2146323, rs10434, rs833069, and rs6921438. RESULT: There was a statistically significant difference in allelic distribution of VEGF-A rs833069 polymorphism in relation to the severity of diabetic retinopathy (DRP) (p = 0.031). The allelic distribution of VEGF-A rs2146323 polymorphism tended to be associated with the severity of DRP (p = 0.069). There were no statistically significant differences in the allelic distribution of the studied five SNVs in DME patients regarding the patients' responses to IVR therapy. CONCLUSIONS: There is no association between the studied VEGF-A SNVs and the responses to IVR therapy in DME. However, the VEGF-A rs833069 gene polymorphism has a clear association with the severity of diabetic retinopathy. PMID- 29030795 TI - A virtual model to assess maximum treatable area in LASIK and feasibility of a temporal hinge. AB - PURPOSE: To generate virtual models using different hinge locations and to investigate the advantages of a temporal hinge to a superior in LASIK. METHODS: The study design was cross sectional. An image processing software was used to construct virtual LASIK models of 56 slit lamp photos of eyes. For a given hinge location and width, the largest flap diameter and maximum treatable stromal bed area were calculated, comparing temporal hinge to superior. RESULTS: Temporal hinge allowed a greater flap diameter than superior and thus a greater treatment zone area for a given hinge width. A temporal hinge allowed a greater hinge width than a superior hinge for a given treatment zone area. CONCLUSION: We provide a rational basis for a mechanically stable temporal hinge. Moreover, we provide a method to pre-operative model flap size and hinge location, using a slit lamp camera and an image editing software. PMID- 29030796 TI - Classification and characterization of acute macular neuroretinopathy with spectral domain optical coherence tomography. AB - PURPOSE: To classify and characterize AMN lesions with SD-OCT during a follow-up as long as 5 years. METHODS: Retrospective study of 14 patients (18 eyes) with special focus on SD-OCT. We measured thickness of inner nuclear layer (INL), outer retinal layer (ONL), and hyperreflective band at baseline and during follow up. AMN lesions were classified as type 1 and type 2. RESULTS: Of 14 patients (six males, eight females, mean age 29.7 years), three patients (four eyes) had type 1 and nine (12 eyes) had type 2. Two patients did not meet the criteria for AMN type 1 or 2 and were therefore classified as new subtype of AMN. In all patients, statistically significant thinning of ONL and INL was observable. Mean ONL of all patients was 90.2 +/- 7.81 and 72.3 +/- 15.64 MUm (p < 0.05) during follow-up; mean INL was 54.4 +/- 10.71 and 37.5 +/- 6.18 MUm (p < 0.05) in the course. In the subgroup analysis in AMN type 2, the thinning of both ONL and INL was also statistically significant (mean ONL: 87.4 +/- 6.02 and 71.6 +/- 12.7 MUm (p < 0.05); mean INL: 48.5 +/- 5.04 and 38.5 +/- 5.6 MUm (p < 0.05)) in the course. CONCLUSION: SD-OCT allows for classification, characterization, and further understanding of AMN lesions. Up to now, this is one of the largest AMN case series differentiating into different subtypes and following up for up to 5 years. Furthermore, we describe a new AMN subtype characterized by initially clinically visible yellowish parafoveal lesions, subtle pigmentary changes at late stage, lack of classic dark appearance on IR reflectance, involvement of RPE/Bruch's complex, and disruption of ellipsoid zone and interdigitation zone. The patients suffered from a prolonged visual impairment and paracentral scotomata. We propose the term AMN type 3 or "paracentral acute outer maculopathy." PMID- 29030797 TI - Corneal endothelial changes following a single session of selective laser trabeculoplasty for pseudoexfoliative glaucoma. AB - PURPOSE: To evaluate corneal endothelial cell parameters after a single session of selective laser trabeculoplasty (SLT) in pseudoexfoliative glaucoma (PEG) patients. METHODS: Corneal endothelial cell parameters of 18 PEG patients were compared with 18 healthy subjects following SLT treatment. All patients underwent SLT treatment to 180 degrees of inferior trabecular meshwork. Corneal measurements were performed using specular microscopy (Noncon Robo SP8000, Konan Medical, Hyogo, Japan). Endothelial cell density (ECD), hexagonal cell ratio (HEX), coefficient of variation (CV) of the corneal endothelial cell layer and central corneal thickness of the patients were measured at each visit. RESULTS: There was a statistically significant decrease in ECD (p = 0.004) and a statistically significant increase in CV (p = 0.041) at superior cornea 1 week after SLT. They returned to pre-SLT values at 1 month. One hour post-SLT HEX of inferior cornea was statistically significantly reduced (p = 0.01). At central cornea, there was a significant increase in HEX after 1 week (p = 0.001). Post SLT IOP showed a significant positive correlation with CV and significant negative correlation with HEX at superior and inferior cornea. There was no correlation between total laser energy used and endothelial cell parameters. CONCLUSION: Effect of a single session of SLT on corneal endothelium of PEG patients appears to be transient, and superior cornea was more affected than central and inferior cornea. All parameters returned to pre-SLT values at 1 month after treatment. PMID- 29030798 TI - What does the character of medicine as a social practice imply for professional conscientious objection? AB - The dispute over professional conscientious objection presumes a picture of medicine as a practice governed by rules. This rule-based conception of medical practice is identifiable with John Rawls's conception of social practices. This conception does not capture the character of medical practice as experienced by practitioners, for whom it is a sensibility or "form of life" rather than rules. Moreover, the sensibility of medical practice as experienced by physicians is at best neutral, and at worst hostile, to the demands of those who would override physician conscientious objection to the provision of currently contested services. That being so, calls for overriding physician conscientious objection are much more demanding of the medical profession than they appear in light of Rawls's view. As such overriding may entail the forcible transformation of medicine's form of life, the author contends that it would be more prudent to provide contested services by circumventing the medical profession than by compelling it. PMID- 29030799 TI - Gastric Peroral Endoscopic Pyloromyotomy Therapy for Refractory Gastroparesis. AB - OPINION STATEMENT: Purpose of review Gastroparesis is a complex dysmotility disorder in which a number of normal gastric emptying mechanisms can be affected. The pylorus as an apparatus is particularly important since it stands as the last final gateway for gastric emptying. As such, pyloric interventions seem to be successful in reducing symptoms and also improving emptying of solids, an effect not observed with other medical interventions. Recent findings Gastric peroral endoscopic myotomy (G-POEM) is a novel technique which offers the promise of mimicking the success of a traditional surgical pyloroplasty, while embracing the minimally invasive paradigm of flexible endoscopic surgery. Emerging data seems to suggest that not only does G-POEM offer symptomatic and clinical improvement but also objective improvement in follow-up gastric emptying studies in as much as 70% of patients. Summary We believe that with proper patient selection, G-POEM will become a powerful tool for gastroenterologists managing this chronic debilitating disease. PMID- 29030800 TI - Endoscopic Treatment of Subepithelial Lesions of the Gastrointestinal Tract. AB - Purpose of Review The study aimed to discuss novel endoscopic approaches to resection of submucosal lesions. Recent Findings Endoscopic resection by excavation, full-thickness resection, and submucosal tunneling are by now well documented techniques for submucosal tumor resection. Combined approaches with laparoscopy such as several variations of laparoscopic endoscopic cooperation surgery (LECS) and non-exposed wall-inversion surgery (NEWS) are also possible now. Reports of these approaches show good results. However, lesion size is the main limitation to these approaches. Summary Endoscopic submucosal tumor resection can be effectively done endoscopically or by endoscopy combined with laparoscopy. These techniques allow localized resection of lesions at difficult locations such as in the gastroesophageal junction with limited influence on the normal anatomy. Variations in techniques are being practiced worldwide striving to achieve complete resection with minimal disturbance of function or contamination. The choice between approaches depends largely on the size and site of the lesion and expertise available. PMID- 29030801 TI - Deep Arm/Ear-ECG Image Learning for Highly Wearable Biometric Human Identification. AB - In this study, to advance smart health applications which have increasing security/privacy requirements, we propose a novel highly wearable ECG-based user identification system, empowered by both non-standard convenient ECG lead configurations and deep learning techniques. Specifically, to achieve a super wearability, we suggest situating all the ECG electrodes on the left upper-arm, or behind the ears, and successfully obtain weak but distinguishable ECG waveforms. Afterwards, to identify individuals from weak ECG, we further present a two-stage framework, including ECG imaging and deep feature learning/identification. In the former stage, the ECG heartbeats are projected to a 2D state space, to reveal heartbeats' trajectory behaviors and produce 2D images by a split-then-hit method. In the second stage, a convolutional neural network is introduced to automatically learn the intricate patterns directly from the ECG image representations without heavy feature engineering, and then perform user identification. Experimental results on two acquired datasets using our wearable prototype, show a promising identification rate of 98.4% (single-arm ECG) and 91.1% (ear-ECG), respectively. To the best of our knowledge, it is the first study on the feasibility of using single-arm-ECG/ear-ECG for user identification purpose, which is expected to contribute to pervasive ECG-based user identification in smart health applications. PMID- 29030802 TI - Treatment of gastroesophageal reflux disease using radiofrequency ablation (Stretta procedure): An interim analysis of a randomized trial. AB - BACKGROUND: Gastroesophageal reflux disease (GERD) is the most common chronic gastrointestinal disorder, affecting one third of the population worldwide. Recently, there has been a renewed interest in Stretta therapy in view of potential long-term side effects of PPIs and the durability of relief with fundoplication. METHOD: Prospective randomized study comparing the Stretta treatment with controls receiving PPIs. Patient (> 18 years, n = 20) with symptoms of heartburn, regurgitation, abnormal esophageal acid exposure (>= 4%), and endoscopically confirmed esophagitis were included into the study. The primary measure was improvement in quality of life (QOL) and decrease in the frequency and severity of GERD symptoms. RESULTS: The mean age of the patients was 39 (+/- 15) years and controls were 34 (+/- 11) years. Three months after Stretta, 80% reported improvement in QOL compared to 40% in the control group. At the end of 3 months, significant (p < 0.05) improvement in GERD symptom score for heartburn, regurgitation, chest pain, and cough compared with the control group was observed. After Stretta treatment, 60% of the patients were free of PPIs whereas there was no change in the control group. Almost 80% of the patients on Stretta treatment were satisfied with the treatment compared to 30% of the patients in the control group. CONCLUSION: Stretta was effective in the short term for the management of GERD. PMID- 29030803 TI - 1H, 13C and 15N backbone resonance assignments of the beta-lactamase BlaP from Bacillus licheniformis 749/C and two mutational variants. AB - Class A beta-lactamases have been widely used as versatile scaffolds to create hybrid (or chimeric) proteins for a series of applications ranging from basic research to medicine. We have, in particular, used the beta-lactamase BlaP from Bacillus licheniformis 749/C (BlaP) as a protein scaffold to create model polyglutamine (polyQ) proteins in order to better understand the mechanism(s) by which an expanded polyQ sequence triggers the formation of amyloid fibrils. The model chimeras were designed by inserting a polyQ sequence of various lengths at two different locations within BlaP (i.e. position 197 or position 216) allowing a detailed comparison of the effects of subtle differences in the environment of the polyQ sequence on its ability to trigger protein aggregation. In order to investigate the effects of the polyQ insertion at both positions on the structure, stability and dynamics of BlaP, a series of NMR experiments including H/D exchange are foreseen. Accordingly, as necessitated by these studies, here we report the NMR assignment of the wild-type BlaP (BlaP-WT) and of the two reference proteins, BlaP197Q0 and BlaP216Q0, wherein a Pro-Gly dipeptide has been introduced at position 197 and 216, respectively; this dipeptide originates from the addition of the Sma1 restriction site at the genetic level to allow further polyQ sequence insertion. PMID- 29030804 TI - A Multi-stage Representation of Cell Proliferation as a Markov Process. AB - The stochastic simulation algorithm commonly known as Gillespie's algorithm (originally derived for modelling well-mixed systems of chemical reactions) is now used ubiquitously in the modelling of biological processes in which stochastic effects play an important role. In well-mixed scenarios at the sub cellular level it is often reasonable to assume that times between successive reaction/interaction events are exponentially distributed and can be appropriately modelled as a Markov process and hence simulated by the Gillespie algorithm. However, Gillespie's algorithm is routinely applied to model biological systems for which it was never intended. In particular, processes in which cell proliferation is important (e.g. embryonic development, cancer formation) should not be simulated naively using the Gillespie algorithm since the history-dependent nature of the cell cycle breaks the Markov process. The variance in experimentally measured cell cycle times is far less than in an exponential cell cycle time distribution with the same mean.Here we suggest a method of modelling the cell cycle that restores the memoryless property to the system and is therefore consistent with simulation via the Gillespie algorithm. By breaking the cell cycle into a number of independent exponentially distributed stages, we can restore the Markov property at the same time as more accurately approximating the appropriate cell cycle time distributions. The consequences of our revised mathematical model are explored analytically as far as possible. We demonstrate the importance of employing the correct cell cycle time distribution by recapitulating the results from two models incorporating cellular proliferation (one spatial and one non-spatial) and demonstrating that changing the cell cycle time distribution makes quantitative and qualitative differences to the outcome of the models. Our adaptation will allow modellers and experimentalists alike to appropriately represent cellular proliferation-vital to the accurate modelling of many biological processes-whilst still being able to take advantage of the power and efficiency of the popular Gillespie algorithm. PMID- 29030805 TI - An Explicit Structural Model of Root Hair and Soil Interactions Parameterised by Synchrotron X-ray Computed Tomography. AB - The rhizosphere is a zone of fundamental importance for understanding the dynamics of nutrient acquisition by plant roots. The canonical difficulty of experimentally investigating the rhizosphere led long ago to the adoption of mathematical models, the most sophisticated of which now incorporate explicit representations of root hairs and rhizosphere soil. Mathematical upscaling regimes, such as homogenisation, offer the possibility of incorporating into larger-scale models the important mechanistic processes occurring at the rhizosphere scale. However, we lack concrete descriptions of all the features required to fully parameterise models at the rhizosphere scale. By combining synchrotron X-ray computed tomography (SRXCT) and a novel root growth assay, we derive a three-dimensional description of rhizosphere soil structure suitable for use in multi-scale modelling frameworks. We describe an approach to mitigate sub optimal root hair detection via structural root hair growth modelling. The growth model is explicitly parameterised with SRXCT data and simulates three-dimensional root hair ideotypes in silico, which are suitable for both ideotypic analysis and parameterisation of 3D geometry in mathematical models. The study considers different hypothetical conditions governing root hair interactions with soil matrices, with their respective effects on hair morphology being compared between idealised and image-derived soil/root geometries. The studies in idealised geometries suggest that packing arrangement of soil affects hair tortuosity more than the particle diameter. Results in field-derived soil suggest that hair access to poorly mobile nutrients is particularly sensitive to the physical interaction between the growing hairs and the phase of the soil in which soil water is present (i.e. the hydrated textural phase). The general trends in fluid coincident hair length with distance from the root, and their dependence on hair/soil interaction mechanisms, are conserved across Cartesian and cylindrical geometries. PMID- 29030806 TI - Palliative Care in the Management of Patients with Advanced Heart Failure. AB - Globally, there are 18-million individuals living with heart failure, a disease that is responsible for 12-15 million office visits and 6.5 million inpatient hospitalizations each year. As HF becomes advanced or end-stage, patients often live in a cycle of frequent transitions between care settings, and with unmet needs, including distress from inadequately managed symptoms. Prognostication in patients with heart failure can be challenging due to the unpredictable exacerbating-remitting illness trajectory that is associated with this progressive disease. Recurrent hospitalizations, worsening functional status and refractory symptoms, despite optimal therapies, are among the most salient predictors indicating that patients with advanced heart failure are nearing the end of life. Palliative care is a specialized form of medical care that has been shown to help improve severity of symptoms, facilitate discussions regarding medical decision making/advance care planning, and provide support for patients and their families. Palliative care can be used alongside curative treatments and has been shown to improve patient satisfaction and quality of life. Anorexia cachexia syndrome, dyspnea, fatigue, pain and depression are among the most common symptoms experienced by patients suffering from advanced heart failure. Palliative care can help alleviate these symptoms and also facilitate conversations about decision making surrounding resuscitation status and use or deactivation of medical devices, such as an implantable-cardioverter defibrillator (ICD). Clinical practice guidelines from the American College of Cardiology and American Heart Association report that aggressive life-sustaining treatments and therapies should not be utilized in patients with advanced heart failure who have refractory symptoms that are not responding to medical therapy. The focus of care should switch to controlling symptoms, reducing hospital admissions and improving health-related quality of life, which can be supported by the incorporation of palliative care into the treatment plan. PMID- 29030807 TI - Trends in Cannabis Use Disorder among Pregnant Women in the U.S., 1993-2014. PMID- 29030808 TI - Child Overweight and Obesity in Shanghai, China: Contextualizing Chinese Socioeconomic and Gender Differences. AB - PURPOSE: Childhood overweight and obesity is on the rise in China and in Chinese cities in particular. The aim of this study is to explore the extent of income differences in childhood overweight in Shanghai, China, and examine demographic, social, and behavioral explanations for these differences. METHODS: Using the 2014 Child Well-Being Study of Shanghai, China-a survey that included extensive contextual information on children and their families in China's most populous city, prevalence rates and adjusted odds ratios of child overweight and obesity at age 7 were calculated by income tercile controlling for a wide variety of sociodemographic variables. RESULTS: District aggregate income increases the odds of child overweight/obesity, but only for boys. In contrast, rural hukou status was associated with lower odds of overweight/obesity for girls. CONCLUSIONS: Boys at age 7 are more likely to be overweight and obese than girls. District income further increases this likelihood for boys, while rural hukou status decreases this likelihood for girls, suggesting that preferences for boys and thinness ideals for girls may play a role in the income patterning of childhood overweight and obesity. PMID- 29030809 TI - Molecular Regulation of Cellular Quiescence: A Perspective from Adult Stem Cells and Its Niches. AB - Cellular quiescence is a reversible growth arrest state. In response to extracellular environment, quiescent cells are capable of resuming proliferation for tissue homeostasis and tissue regeneration. Subpopulations of adult stem cells remain quiescent and reside in their specialized stem cell niches. Within the niche, they interact with a repertoire of niche components. Niche integrates signals to maintain quiescence or gear stem cells toward regeneration. Recent studies provide insights into the regulatory components of stem cell niche and their influence on residing stem cells. Aberrant niche activities perturb stem cell quiescence and activation, compromise stem cell functions, and contribute to tissue aging and disease pathogenesis. This review covers current knowledge regarding cellular quiescence with a focus on original and emerging concepts of how niches influence stem cell quiescence. PMID- 29030811 TI - Flow Cytometric Detection of G0 in Live Cells by Hoechst 33342 and Pyronin Y Staining. AB - Hoechst 33342 and Pyronin Y double staining can be used to measure DNA and RNA content in live cells by flow cytometry. Quiescent cells at G0 phase have the same amount of DNA as cells at G1 phase but lower RNA levels compared to proliferating cells. Therefore, resting cells in G0 phase can be distinguished from proliferating cells in G1, S, and G2 M phases. This chapter describes a protocol for double staining of live cells with Hoechst 33342 and Pyronin Y. Combined with immunophenotyping of intact and live cells Hoechst 33342 and Pyronin Y staining is a powerful noninvasive method for the analysis and isolation of quiescent cells from any defined cell population. PMID- 29030810 TI - An In Vitro Model of Cellular Quiescence in Primary Human Dermal Fibroblasts. AB - Cellular quiescence is a reversible mode of cell cycle exit that allows cells and organisms to withstand unfavorable stress conditions. The factors that underlie the entry, exit, and maintenance of the quiescent state are crucial for understanding normal tissue development and function as well as pathological conditions such as chronic wound healing and cancer. In vitro models of quiescence have been used to understand the factors that contribute to quiescence under well-controlled experimental conditions. Here, we describe an in vitro model of quiescence that is based on neonatal human dermal fibroblasts. The fibroblasts are induced into quiescence by antiproliferative signals, contact inhibition, and serum-starvation (mitogen withdrawal). We describe the isolation of fibroblasts from skin, methods for inducing quiescence in isolated fibroblasts, and approaches to manipulate the fibroblasts in proliferating and quiescent states to determine critical regulators of quiescence. PMID- 29030812 TI - Using Carboxy Fluorescein Succinimidyl Ester (CFSE) to Identify Quiescent Glioblastoma Stem-Like Cells. AB - Tumor resistance to conventional therapies is a major challenge toward the eradication of cancer, a life-threatening disease. This resistance mainly results from tumor heterogeneity and more specifically from the existence of "stem-like" cells that remain in a quiescent state for long periods of time and thus escape commonly used anti-cancer drugs resulting in treatment failure. Therefore, targeting this subpopulation would present a viable strategy to overcome tumor burden. This daunting task requires a deep and thorough understanding of the biology of the quiescent stem-cell population, their interaction with tumor microenvironments, and mechanisms used to sustain themselves despite aggressive therapies. In this chapter, we describe detailed technical procedures for the isolation of quiescent or infrequently dividing stem-like cells in cultured glioblastoma tumor cells using carboxy fluorescein succinimidyl ester (CFSE) staining and flow cytometric analysis. Quiescent glioblastoma cells with stem like features are characterized and subsequently isolated based on their ability to retain the CFSE labeling. PMID- 29030813 TI - Isolation of Neural Stem and Progenitor Cells from the Adult Brain and Live Imaging of Their Cell Cycle with the FUCCI System. AB - Neural stem cells (NSCs) enter quiescence in early embryonic stages to create a reservoir of dormant NSCs able to enter proliferation and produce neuronal precursors in the adult mammalian brain. Various approaches of fluorescent activated cell sorting (FACS) have emerged to allow the distinction between quiescent NSCs (qNSCs), their activated counterpart (aNSCs), and the resulting progeny. In this article, we review two FACS techniques that can be used alternatively. We also show that their association with transgenic Fluorescence Ubiquitination Cell Cycle Indicator (FUCCI) mice allows an unprecedented overlook on the cell cycle dynamics of adult NSCs. PMID- 29030814 TI - Determination of Histone 2B-Green Fluorescent Protein (GFP) Retention in Intestinal Stem Cells. AB - The epithelium of the gastrointestinal tract represents the interface between the luminal contents of the gut and that of the host tissues and plays a central role not only in regulating absorption of dietary nutrients but also in providing a barrier to prevent the entry of bacteria and other pathogens. Repair and replacement of damaged aging cells within the epithelium is modulated by stem cells, which are located in the intestinal crypts of the small intestine.Two distinct populations of intestinal stem cells have been described in the literature, one population at the very base of the crypt and a second population of long-lived stem cells located just above the Paneth cell zone. Herein, we describe a method to label this population of long-lived GFP label retaining cells. This method is free from confounding factors of previous methodologies based on radioactive tracers and also enables functional studies not previously possible using the radioactive tracer techniques described in the literature. PMID- 29030815 TI - Detecting Hematopoietic Stem Cell Proliferation Using BrdU Incorporation. AB - Cellular quiescence is a key component of hematopoietic stem cell (HSC) homeostasis; therefore, a reliable method to measure HSC cell division is critical in many studies. However, measuring the proliferation rate of largely quiescent and rare populations of cells can be challenging. Bromo-deoxyuridine (BrdU) incorporation into replicating DNA is a commonly used and highly reproducible method to detect cell division history. Here, we describe a protocol for BrdU incorporation analysis in hematopoietic stem and progenitor cells that can provide a sensitive measure of cell division even in rare cell populations. In combination with flow cytometry, this method can be generalized to analyze other cell populations and other tissues as identified by cell surface markers. PMID- 29030816 TI - Cell Cycle Analysis by Mass Cytometry. AB - The regulated progression of cells through the cell cycle during proliferation is a critical factor in tumor progression, anti-neoplastic therapy response, immune system regulation, and developmental biology. While flow cytometric measurement of cell cycle progression is well established, mass cytometry assays allow the cell cycle to be measured along with up to 39 other antigens enabling characterization of the complex interactions between the cell cycle and a wide variety of cellular processes. This method describes the use of mass cytometry for the analysis of cell cycle state for cells from three different sources: in vitro cultured cell lines, ex vivo human blood or bone marrow, and in vivo labeling and ex vivo analysis of murine tissues. The method utilizes incorporation of 5-Iodo-2'-deoxyuridine (IdU), combined with measurement of phosphorylated retinoblastoma protein (pRb), cyclin B1, and phosphorylated histone H3 (p-HH3). These measurements can be integrated into a gating strategy that allows for clear separation of all five phases of the cell cycle. PMID- 29030817 TI - Preparation and Analysis of Saccharomyces cerevisiae Quiescent Cells. AB - Saccharomyces cerevisiae enter quiescence during extended growth in culture (greater than 7 days). Here, we describe a method to separate quiescent from non quiescent cells by density gradient. We also describe approaches for DAPI staining the chromatin of quiescent cells, measuring quiescent cell viability, and extracting RNA from quiescent cells for use in genomics experiments. PMID- 29030818 TI - Identifying Quiescent Stem Cells in Hair Follicles. AB - Hair follicle stem cells (HFSCs) are noted for their relative quiescence and therefore can be distinguished from other cells by their differential history of cell division. Replicating cells can be labeled by pulsing the animals repeatedly with 5-bromo-2'-deoxyuridine (BrdU) or tritiated thymidine ([3H]TdR), thymidine analogs that get incorporated into DNA during DNA synthesis. Because dividing cells dilute the label after each cell division, frequently dividing cells will lose the label over time while slow cycling cells will retain the label and thus are termed label retaining cells (LRCs). [3H]TdR can be visualized by autoradiography and BrdU can be detected by immunofluorescence with anti-BrdU antibodies. Alternatively, a well-established tet-regulatable transgenic mouse model can be used to express histone H2B-GFP in epithelial proliferative cells and their dilution and retention of the GFP signal can be followed. In this chapter, we detail the steps to perform BrdU pulse-chase and H2B-GFP pulse-chase experiments to identify quiescent cells in the hair follicle. PMID- 29030819 TI - Single EDL Myofiber Isolation for Analyses of Quiescent and Activated Muscle Stem Cells. AB - Adult satellite cells are quiescent, but are poised for activation in response to exercise, injury, or disease allowing adult muscle growth or repair. Once activated, satellite cells proliferate extensively to produce enough myogenic progenitors in order to regenerate the muscles. In order to self-renew, a subset of activated satellite cells can resist the myogenic differentiation and return to quiescence to replenish the satellite cell pool. These cellular processes that normally occur during skeletal muscle regeneration can be recapitulated ex vivo using isolated and cultured myofibers. Here, we describe a protocol to isolate single myofibers from the extensor digitorum longus muscle. Moreover, we detail experimental conditions for analyzing satellite cells in quiescence and progression through the myogenic lineage. PMID- 29030820 TI - Investigating Cellular Quiescence of T Lymphocytes and Antigen-Induced Exit from Quiescence. AB - Naive T cells are in a quiescent state under homeostasis but respond to antigen stimulation by exiting from quiescence and entering the cell cycle. Appropriate regulation of quiescence is crucial for maintaining T cell homeostasis at steady state and initiating proper T cell responses to antigen stimulation. Emerging evidence indicates that signaling by mechanistic target of rapamycin (mTOR) plays a central role in the control of T cell quiescence and antigen-induced exit from quiescence through coordinating immune signals, cellular metabolic programs, and cell cycle machinery. The mTOR-dependent regulation of quiescence has also been implicated in the differentiation and function of memory T cells. In this chapter, we describe techniques to assess quiescent state of naive T cells under steady state and exit from quiescence upon TCR stimulation. PMID- 29030821 TI - Retroviral Transduction of Quiescent Murine Hematopoietic Stem Cells. AB - Hematopoietic stem cells (HSCs) represent an important target cell population in bone marrow transplantation, cell and gene therapy applications, and the development of leukemia models for research. Because the hematopoietic progeny carries the genetic information of HSCs and replenishes the blood and immune system, corrective gene transfer into HSCs provides an ideal therapeutic approach for many monogenic hematological diseases and a useful tool for studies of HSC function and blood formation in normal and malignant hematopoiesis. However, the efficiency of gene transfer into HSCs has been limited by several features of viral vectors, viral titer, methods of viral transduction, and the property of stem cell quiescence. In this chapter, we describe the production of retrovirus using murine stem cell virus (MSCV)-based retroviral vectors and purification and transduction of murine HSCs. PMID- 29030822 TI - Analysis of Murine Hematopoietic Stem Cell Proliferation During Inflammation. AB - Normally, quiescent hematopoietic stem cells (HSC) rapidly enter the cell cycle following exposure to inflammatory stimuli. The analysis of HSC cell cycle activity in murine bone marrow during inflammation is often complicated by the relative rarity of HSCs and shifts in Sca-1, a key cell surface marker used to identify HSCs. Here, we report a method to analyze HSC proliferation and cell cycle distribution under inflammatory conditions. Our approach uses EdU incorporation and Ki67 staining coupled with DNA content quantification by DAPI. We also incorporate the surface marker ESAM to help minimize the potential for contaminating events that may confound analysis in the HSC compartment. PMID- 29030823 TI - A Facile, In Vitro 384-Well Plate System to Model Disseminated Tumor Cells in the Bone Marrow Microenvironment. AB - Bone marrow disseminated tumor cells (DTCs) are dormant cancer cells that harbor themselves in a bone marrow niche for years after patient remission before potentially returning to a proliferative state, causing recurrent cancer. DTCs reside in bone marrow environments with physiologically important mesenchymal stem cells that are often negatively affected by chemotherapy treatments. Currently, there are very few models of DTCs that recapitulate their dormant phenotype while producing enough samples to accurately quantify cancer and surrounding stromal cell behaviors. We present a three-dimensional spheroid-based model system that uses dual-color bioluminescence imaging to quantify differential cell viability in response to various compounds. We successfully screened for compounds that selectively eliminated cancer cells versus supportive stromal cells and verified results with comparison to efficacy in vivo. The spheroid coculture system successfully modeled key aspects of DTCs in the bone marrow microenvironment, facilitating testing for compounds to selectively eliminate DTCs. PMID- 29030824 TI - Distinguishing States of Arrest: Genome-Wide Descriptions of Cellular Quiescence Using ChIP-Seq and RNA-Seq Analysis. AB - Regenerative potential in adult stem cells is closely associated with the establishment of-and exit from-a temporary state of quiescence. Emerging evidence not only provides a rationale for the link between lineage determination programs and cell cycle regulation but also highlights the understanding of quiescence as an actively maintained cellular program, encompassing networks and mechanisms beyond mitotic inactivity or metabolic restriction. Interrogating the quiescent genome and transcriptome using deep-sequencing technologies offers an unprecedented view of the global mechanisms governing this reversibly arrested cellular state and its importance for cell identity. While many efforts have identified and isolated pure target stem cell populations from a variety of adult tissues, there is a growing appreciation that their isolation from the stem cell niche in vivo leads to activation and loss of hallmarks of quiescence. Thus, in vitro models that recapitulate the dynamic reversibly arrested stem cell state in culture and lend themselves to comparison with the activated or differentiated state are useful templates for genome-wide analysis of the quiescence network.In this chapter, we describe the methods that can be adopted for whole genome epigenomic and transcriptomic analysis of cells derived from one such established culture model where mouse myoblasts are triggered to enter or exit quiescence as homogeneous populations. The ability to synchronize myoblasts in G0 permits insights into the genome in "deep quiescence." The culture methods for generating large populations of quiescent myoblasts in either 2D or 3D culture formats are described in detail in a previous chapter in this series (Arora et al. Methods Mol Biol 1556:283-302, 2017). Among the attractive features of this model are that genes isolated from quiescent myoblasts in culture mark satellite cells in vivo (Sachidanandan et al., J Cell Sci 115:2701-2712, 2002) providing a validation of its approximation of the molecular state of true stem cells. Here, we provide our working protocols for ChIP-seq and RNA-seq analysis, focusing on those experimental elements that require standardization for optimal analysis of chromatin and RNA from quiescent myoblasts, and permitting useful and revealing comparisons with proliferating myoblasts or differentiated myotubes. PMID- 29030825 TI - Analysis of lncRNA-Protein Interactions by RNA-Protein Pull-Down Assays and RNA Immunoprecipitation (RIP). AB - Long noncoding RNAs (lncRNAs) have important roles in shaping chromatin by targeting chromatin-modifying enzymes to distinct genomic sites. This section covers two methods to analyze lncRNA-protein interactions. The RNA-protein pull down assays use either bead-bound proteins to capture in vitro transcripts, or immobilized synthetic RNAs to bind proteins from cell lysates. In the RNA immunoprecipitation (RIP) assay, endogenous RNAs are co-immunoprecipitated with a protein of interest. Both the methods can be applied to material from proliferating and quiescent cells, thus providing insights into how lncRNA protein interactions are altered between these two cellular states. PMID- 29030827 TI - Genome-Wide Identification of Transcription Factor-Binding Sites in Quiescent Adult Neural Stem Cells. AB - Transcription factors bind to specific DNA sequences and control the transcription rate of nearby genes in the genome. This activation or repression of gene expression is further potentiated by epigenetic modifications of histones with active and silent marks, respectively. Resident adult stem cells in the hematopoietic system, skin, and brain exist in a non-proliferative quiescent resting state. When quiescent stem cells become activated and transition to dividing progenitors and distinct cell types, they can replenish and repair tissue. Thus, determination of the position of transcription factor binding and histone epigenetic modification on the chromatin is an essential step toward understanding the gene regulation of quiescent and proliferative adult stem cells for potential applications in regenerative medicine. Genome-wide transcription factor occupancy and histone modifications on the genome can be obtained by assessing DNA-protein interaction through next-generation chromatin immunoprecipitation sequencing technology (ChIP-seq). This chapter outlines the protocol to perform, analyze, and validate ChIP-seq experiments that can be used to identify protein-DNA interactions and histone marks on the chromatin. The methods described here are applicable to quiescent and proliferative neural stem cells, and a wide range of other cellular systems. PMID- 29030826 TI - Analysis of MicroRNA-Mediated Translation Activation of In Vitro Transcribed Reporters in Quiescent Cells. AB - Quiescence (G0) is defined as an assortment of cell cycle arrested states that exhibit distinct properties. Leukemias harbor a subpopulation of G0 cells that can be enriched by growth factor deprivation or serum starvation. Target site reporters with shortened poly(A) tails show translation activation by microRNAs, via a noncanonical mechanism, when introduced into the nucleus of G0 cells. This is because recruitment by the activation causing FXR1a-microRNA-protein complex (FXR1a-microRNP) is nuclear and requires shortened poly(A) tails to avoid repressive factors and canonical translation. When introduced into the cytoplasm, target mRNAs and microRNAs are directed toward repression rather than translation activation. Leukemic cell lines are difficult to transfect but can be routinely nucleofected-where in vitro transcribed mRNA reporters and microRNAs are introduced into the nucleus of G0 leukemic cells. Nucleofection of a microRNA target reporter and either cognate, targeting microRNA, or control microRNA, into the nucleus of G0 cells, enables analysis of translation activation by microRNAs in G0. We discuss a modified protocol that we developed for transfection of mRNAs along with microRNAs to test translation regulation by microRNAs in G0 leukemic cells. PMID- 29030828 TI - Study Quiescence Heterogeneity by Coupling Single-Cell Measurements and Computer Modeling. AB - Single-cell measurements combined with mathematical modeling and computer simulations are powerful tools for understanding and exploring dynamical behaviors of gene networks and cellular functions that they control. Here, we describe experimental and computational methods to study cellular quiescence and its heterogeneity at the single-cell level. PMID- 29030829 TI - Review: Diagnosing Common Variable Immunodeficiency Disorder in the Era of Genome Sequencing. AB - Common variable immunodeficiency disorders (CVID) are an enigmatic group of often heritable conditions, which may manifest for the first time in early childhood or as late as the eighth decade of life. In the last 5 years, next generation sequencing (NGS) has revolutionised identification of genetic disorders. However, despite the best efforts of researchers around the globe, CVID conditions have been slow to yield their molecular secrets. We have previously described the many clinical advantages of identifying the genetic basis of primary immunodeficiency disorders (PIDs). In a minority of CVID patients, monogenic defects have now been identified. If a causative mutation is identified, these conditions are reclassified as CVID-like disorders. Here we discuss recent advances in the genetics of CVID and discuss how NGS can be optimally deployed to identify the causal mutations responsible for the protean clinical manifestations of these conditions. Diagnostic criteria such as the Ameratunga et al. criteria will continue to play an important role in patient management as well as case selection and sequencing strategy design until the genetic conundrum of CVID is solved. PMID- 29030830 TI - Function and quality of life among primary osteosarcoma survivors in Iran: amputation versus limb salvage. AB - PURPOSE: This study aimed to evaluate the psychometric properties of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) in Iranian osteosarcoma patients and apply this to compare the functional level, quality of life, symptoms and financial burden of the patients who underwent amputation and limb-salvage operations. METHODS: This study was conducted at the main referral orthopedic centers in the southwest of Iran from 2006 to 2016. After complete review of medical records, 48 patients were invited to attend the outpatient clinic and participate in the study via initial telephone interview. All data were entered in the Statistical Package for the Social Sciences version 15.0, and p values <0.05 were considered statistically significant. RESULTS: In total, 48 patients with extremities osteosarcoma completed the study. Of these, 31 had been treated with limb-salvage operation and 17 had undergone amputation. In functioning subscale, all the mean score of items, except social function, were higher in the limb salvage group than the amputee group. The mean scores (SD) of global health and quality of life were 64.5(13.2) and 61.2+/- 12.4 in the limb salvage and amputee groups, respectively. In the financial impact subscale, the mean score (SD) in the limb salvage group was 68.8+/- (29.7) compared to 74.5(25.0) in the amputee group. CONCLUSION: Results support the responsiveness of the EORTC QLQ-C30 for Iranian osteosarcoma patients. Applying this questionnaire revealed similar functional outcome, quality of life, symptoms and financial burden between amputation and limb salvage groups. PMID- 29030831 TI - Practical Considerations for Using Online Methods to Engage Patients in Guideline Development. AB - Clinical practice guidelines (CPGs) have been widely used in healthcare policy, practice, and for suggesting future research. As patients increasingly become involved in CPG development to produce patient-centered recommendations, more research is needed on methods to engage patients, particularly methods allowing for scalable engagement of large, diverse, and geographically distributed groups of patients. In this article, we discuss practical considerations for using online methods to engage patients in CPG development. To inform this discussion, we conducted a rapid, systematic review of literature on patient involvement in CPG development and used qualitative evidence synthesis techniques to make inferences about potential advantages and challenges of using online methods to engage patients in this context. We identified 79 articles containing information about involving patients in CPG development. Potential advantages include the ability of online methods to facilitate greater openness and honesty by patients, as well as to reflect the diversity of patient views, which in turn further improve the utility of CPGs. Potential challenges of using online methods may include the extra skill, time, and certain types of resources that may be needed for patient engagement, as well as the difficulty engaging specific patient populations. However, these challenges are mitigated by growing calls for patient engagement as normative for CPG development in addition to patients' increasing familiarity with online technologies. These practical considerations should be examined empirically as guideline development groups further explore the appropriateness of using online methods to engage patients across different stages of CPG development. PMID- 29030832 TI - Iron's fingerprint of deposits-iron speciation as a geochemical marker. AB - The article describes the studies of the iron speciation (the occurrence of Fe(II), Fe(III), and complexed iron) in acid leachable fraction of deposits. The speciation of iron was diverse for deposits of different origins and was the specific "fingerprint"-marker of deposition processes. The higher occurrence of Fe(II) may be connected with decantation which has been observed for lake sediments, the majority of Fe(III) with upper flow regime erosion-deposition processes, observed for river sediment deposition during flood episodes. As verification for this hypothesis, the explanation for the iron speciation in the different river sediment samples has been used. PMID- 29030833 TI - Voluminous pseudotumoral mass in a pregnant woman: an extraordinary presentation of retroperitoneal tuberculosis. PMID- 29030834 TI - Prognostic impact of minimal disseminated disease and immune response to NPM-ALK in Japanese children with ALK-positive anaplastic large cell lymphoma. AB - The prognostic impact of minimal disseminated disease (MDD) and anti-anaplastic lymphoma kinase (ALK) antibody titer in children with ALK-positive anaplastic large cell lymphoma (ALCL) was reported by an Italian/German group. Here, we examine their prognostic value in Japanese children with ALK-positive ALCL. We evaluated nucleophosmin (NPM)-ALK transcripts in 60 patients at diagnosis by RT PCR and real-time PCR (qPCR). The antibody titer was assessed in 35 patients. Fifty-two percent were MDD positive by RT-PCR and 37% had more than 10 copies of NPM-ALK per 104 copies of ABL (10NCNs) by qPCR. Fifty-one percent of 35 patients had high antibody titer (> 1/750). Progression-free survival (PFS) of the patients with > 10 NCNs or low antibody titers was significantly poorer than that of patients with <= 10 NCNs or high antibody titers (> 1/750) (P = 0.016, 0.029), respectively, although we observed no difference in PFS associated with positive MDD on RT-PCR. On stratification using a combination of MDD and antibody titer, PFS for patients with > 10 NCNs and low antibody titer was extremely low (30.0%). Combined evaluation of MDD and anti-ALK antibody titer at diagnosis may thus be valuable for stratification of treatment for childhood ALCL. PMID- 29030835 TI - A new technique for tension-free reconstruction in large incisional hernia. AB - In the surgical management of large incisional hernias, the main target is the closure of the abdominal wall defect on the midline without a dangerous increase in the intraabdominal pressure. In this setting, new intraperitoneal prosthesis and components separation techniques were proposed to solve this problem. Both solutions present some critical issues. A new surgical approach with a free lateral double layer prosthesis totally in polypropylene both sides (FLaPp(r)) is proposed to overcome this problem. This is a retrospective cohort analysis study with a prospectively collected database from two different Italian hospitals. Twenty-nine patients operated from April 2010 to December 2015 were treated using the new prosthesis. Four patients developed postoperative complications: one (3.4%) presented wound infection, two (6.9%) experienced seroma, and one had a hematoma (3.4%). No deaths were recorded. At a median follow-up of 28.5 months (IQR 22-36), no hernia relapse occurred. The application of FLaPp(r) mesh is a safe and feasible option that can be employed to manage Rives repair in cases of abdominal wall defects with difficult closure of the posterior plan when the conventional prosthetic meshes could be unsuitable. PMID- 29030836 TI - Quantitative Perspectives on Fifty Years of the Journal of the History of Biology. AB - Journal of the History of Biology provides a fifty-year long record for examining the evolution of the history of biology as a scholarly discipline. In this paper, we present a new dataset and preliminary quantitative analysis of the thematic content of JHB from the perspectives of geography, organisms, and thematic fields. The geographic diversity of authors whose work appears in JHB has increased steadily since 1968, but the geographic coverage of the content of JHB articles remains strongly lopsided toward the United States, United Kingdom, and western Europe and has diversified much less dramatically over time. The taxonomic diversity of organisms discussed in JHB increased steadily between 1968 and the late 1990s but declined in later years, mirroring broader patterns of diversification previously reported in the biomedical research literature. Finally, we used a combination of topic modeling and nonlinear dimensionality reduction techniques to develop a model of multi-article fields within JHB. We found evidence for directional changes in the representation of fields on multiple scales. The diversity of JHB with regard to the representation of thematic fields has increased overall, with most of that diversification occurring in recent years. Drawing on the dataset generated in the course of this analysis, as well as web services in the emerging digital history and philosophy of science ecosystem, we have developed an interactive web platform for exploring the content of JHB, and we provide a brief overview of the platform in this article. As a whole, the data and analyses presented here provide a starting place for further critical reflection on the evolution of the history of biology over the past half-century. PMID- 29030837 TI - Totally Robotic Combined Roux-en-Y Gastric Bypass and Hiatal Hernia Repair with Biological Mesh: Technical Points. PMID- 29030838 TI - Cloning and Identification of Recombinant Argonaute-Bound Small RNAs Using Next Generation Sequencing. AB - Argonaute proteins (AGOs) are loaded with small RNAs as guides to recognize target mRNAs. Since the target specificity heavily depends on the base complementarity between two strands, it is important to identify small guide and long target RNAs bound to AGOs. For this purpose, next-generation sequencing (NGS) technologies have extended our appreciation truly to the nucleotide level. However, the identification of RNAs via NGS from scarce RNA samples remains a challenge. Further, most commercial and published methods are compatible with either small RNAs or long RNAs, but are not equally applicable to both. Therefore, a single method that yields quantitative, bias-free NGS libraries to identify small and long RNAs from low levels of input will be of wide interest. Here, we introduce such a procedure that is based on several modifications of two published protocols and allows robust, sensitive, and reproducible cloning and sequencing of small amounts of RNAs of variable lengths. The method was applied to the identification of small RNAs bound to a purified eukaryotic AGO. Following ligation of a DNA adapter to RNA 3'-end, the key feature of this method is to use the adapter for priming reverse transcription (RT) wherein biotinylated deoxyribonucleotides specifically incorporated into the extended complementary DNA. Such RT products are enriched on streptavidin beads, circularized while immobilized on beads and directly used for PCR amplification. We provide a stepwise guide to generate RNA-Seq libraries, their purification, quantification, validation, and preparation for next-generation sequencing. We also provide basic steps in post-NGS data analyses using Galaxy, an open-source, web-based platform. PMID- 29030839 TI - Quantification of miRNAs Co-Immunoprecipitated with Argonaute Proteins Using SYBR Green-Based qRT-PCR. AB - MicroRNAs (miRNAs) are small non-coding RNAs that trigger post-transcriptional gene silencing. These RNAs need to be associated with the Argonaute proteins to be functional. This assembly begins with loading of a miRNA duplex, followed by the ejection of one of the strands (passenger). The remaining strand (guide) together with the Argonaute protein forms a ribonucleoprotein effector complex (the RNA-induced silencing complex, RISC). Mutation on the Argonaute protein, if affecting either step of the RISC assembly, impacts the function of miRNAs. Therefore, any observation of decreased miRNA level of mutants will provide insights into the role of those amino acid residues in the mechanical function of the Argonaute protein. In this chapter, we introduce a method to relatively quantify a specific miRNA co-immunoprecipitated with wild type and mutant Argonaute proteins from HEK293T cells, using Real-Time Quantitative Reverse Transcription Polymerase Chain Reaction (qRT-PCR). Spiking a synthetic exogenous miRNA as an internal control with RNA extraction prior to cDNA synthesis will normalize the C t values obtained from the qRT-PCR assays and enable us to quantify the relative level of Argonaute-bound miRNA. PMID- 29030840 TI - Gateway to Understanding Argonaute Loading of Single-Stranded RNAs: Preparation of Deep Sequencing Libraries with In Vitro Loading Samples. AB - Identification of sequences preferred by individual RNA-binding proteins (RBPs) has been accelerated by recent advances in the quantitative analysis of protein RNA interactions on a massive scale, and such experiments have even revealed hidden sequence specificity of RBPs that were assumed to be non-specific. Argonaute (AGO) proteins bind diverse guide small RNAs and were believed to have no sequence specificity besides the preference for particular bases at the 5' nucleotide. However, we recently showed that short single-stranded RNAs (ssRNAs) are loaded to AGOs in vivo and in cell extracts with detectable sequence preferences. To study the sequence specificity, we established a protocol for preparing the oligo-specific deep-sequencing library. The protocol includes in vitro loading assay that uses RNA oligos containing randomized nucleotides at the first five positions and also splinted-ligation that specifically amplifies the introduced oligo RNA species from a complex mixture of endogenous small RNAs and exogenously introduced RNA oligos. With the current sequencing depth, this procedure will allow quantitative profiling of interactions between the AGO and ~1000 ssRNA species with different sequences. The method would aid in studying the mechanism behind the selective loading of ssRNAs to AGOs and may potentially be applied to study interactions between RNA and other RNA-binding proteins. PMID- 29030841 TI - Dumbbell-PCR for Discriminative Quantification of a Small RNA Variant. AB - Cellular RNAs are often expressed as multiple isoforms of complex heterogeneity in both length and terminal sequences. IsomiRs, the isoforms of microRNAs, are such an example. Distinct quantification of each RNA variant is necessary to unravel the biogenesis mechanism and biological significance of heterogenetic RNA expression. Here we describe Dumbbell-PCR (Db-PCR), a TaqMan RT-PCR-based method that distinctively quantifies a specific small RNA variant with single-nucleotide resolution at terminal sequences. Db-PCR enables the quantitative analysis of RNA terminal heterogeneity without performing Next-Generation Sequencing. PMID- 29030842 TI - MicroRNA Detection by Whole-Mount In Situ Hybridization in C. elegans. AB - MicroRNAs (miRNAs) loaded on argonaute proteins guide RNA-induced silencing complexes to target mRNAs. An excellent method to decipher the spatiotemporal expression patterns of miRNAs is whole-mount in situ hybridization (WISH), which has been successfully used in vertebrate embryos but still remains unavailable for many animal species. Here, we describe a WISH method for miRNA detection in Caenorhabditis elegans at both embryonic and post-embryonic stages. Strategies devised for detection include fixation of animals with carbodiimide at a high temperature and subsequent partial digestion of the fixed animals with an extremely high concentration of proteinase. WISH signals are visualized by staining with a chromogenic substrate or a fluorescent dye. PMID- 29030843 TI - cCLIP-Seq: Retrieval of Chimeric Reads from HITS-CLIP (CLIP-Seq) Libraries. AB - HITS-CLIP (High-Throughput Sequencing after in vivo Crosslinking and Immunoprecipitation, CLIP-Seq) libraries contain fragments of the RNA sequences bound in vivo by an RNA binding protein (RBP). Such fragments, especially if they represent RNA duplexes bound in vivo by the RBP, can occasionally be ligated together to form chimeric CLIP tags. Chimeric CLIP tags from Argonaute CLIP libraries can provide the exact base pairing profiles of small RNAs with their target RNA sequences, thus solving a critical problem in the field of post transcriptional regulation. We recently reported an analysis of chimeric reads from the Drosophila Piwi protein Aubergine, which revealed a novel mechanism for mRNA entrapment within germ RNP granules. We term this novel approach chimeric CLIP (cCLIP) and present here the main steps that a researcher can take after the acquisition of the deep sequencing data, for the identification of candidate chimeric reads in Piwi CLIP libraries. Extending the scope beyond small-RNA binding proteins, we believe that cCLIP can be utilized to elucidate the in vivo functions of RNA-binding proteins in general, and especially those that modulate RNA secondary structures. We, therefore, also describe aspects of the generalized chimeric read identification problem, which can find use in the analysis of the CLIP libraries of any RNA-binding protein. PMID- 29030844 TI - Kinetic Analysis of Small Silencing RNA Production by Human and Drosophila Dicer Enzymes In Vitro. AB - Dicer enzymes produce small silencing RNAs such as microRNAs (miRNAs) and small interfering RNAs (siRNAs), which then are loaded into Argonaute proteins and act as sequence-specific guides. A powerful tool to understand the molecular mechanism of small silencing RNA production by Dicers is an in vitro RNA processing assay using recombinant Dicer proteins. Such biochemical analyses have elucidated the substrate specificities and kinetics of Dicers, the mechanism by which the length of small RNAs produced by Dicers is determined, and the effects of Dicer-partner proteins and endogenous small molecules such as ATP and inorganic phosphate on small RNA production by Dicers, among others. Here, we describe methods for in vitro small RNA production assay using recombinant human and Drosophila Dicer proteins. PMID- 29030845 TI - Nucleic Acid-Binding Assay of Argonaute Protein Using Fluorescence Polarization. AB - Nucleic acid binding by the Argonaute protein is an important trigger step in the Argonaute-dependent gene silencing system. We established an in vitro method to detect the nucleic acid binding activity of the Argonaute protein by fluorescence polarization. In this chapter, we will describe the expression and purification of the prokaryotic (Rhodobacter sphaeroides) Argonaute protein, and the nucleic acid-binding analysis using a Fluorescence Polarization System (Beacon 2000). PMID- 29030846 TI - Reconstitution of RNA Interference Machinery. AB - Small RNAs, including small interfering RNAs (siRNAs) and microRNAs (miRNAs), silence protein expression from target mRNAs bearing their complementary sequences, via the formation of the effector complex called RNA-induced silencing complex (RISC). Although the mechanism of RISC assembly has been studied for nearly two decades, the detailed mechanism has still remained unclear in part due to the lack of a pure reconstitution system. Recently, we identified all the core proteins necessary for RISC assembly in flies and successfully recapitulated the assembly of catalytically active RISC with eight recombinant proteins. The reconstitution system provides a versatile framework for detailed studies of RISC assembly, including single molecule analysis as described in another chapter in this issue. PMID- 29030847 TI - Single-Molecule Analysis for RISC Assembly and Target Cleavage. AB - RNA-induced silencing complex (RISC) is a small RNA-protein complex that mediates silencing of complementary target RNAs. Biochemistry has been successfully used to characterize the molecular mechanism of RISC assembly and function for nearly two decades. However, further dissection of intermediate states during the reactions has been warranted to fill in the gaps in our understanding of RNA silencing mechanisms. Single-molecule analysis with total internal reflection fluorescence (TIRF) microscopy is a powerful imaging-based approach to interrogate complex formation and dynamics at the individual molecule level with high sensitivity. Combining this technique with our recently established in vitro reconstitution system of fly Ago2-RISC, we have developed a single-molecule observation system for RISC assembly. In this chapter, we summarize the detailed protocol for single-molecule analysis of chaperone-assisted assembly of fly Ago2 RISC as well as its target cleavage reaction. PMID- 29030848 TI - Profiling Open Chromatin Structure in the Ovarian Somatic Cells Using ATAC-seq. AB - The assay for transposase-accessible chromatin using sequencing (ATAC-seq) was recently established as a method to profile open chromatin, which overcomes the sample size limitations of the alternative methods DNase/MNase-seq. To investigate the role of Piwi in heterochromatin formation around transposable element loci, we have used ATAC-seq to examine chromatin accessibility at target transposable elements in a Drosophila cultured cell line, ovarian somatic cells (OSCs). In this chapter, we describe our method to profile open chromatin structure in OSCs using ATAC-seq. PMID- 29030849 TI - Assessing miR-451 Activity and Its Role in Erythropoiesis. AB - The ability to microinject small RNAs and mRNAs into zebrafish embryos, of different genetic backgrounds, allows for the precise dissection of microRNA processing pathways at the molecular level, while simultaneously provides insight into their physiologic role. Here, we apply such an approach to determine the impact of Argonaute 2 in the processing of miR-451, a vertebrate-specific microRNA required for terminal erythrocyte differentiation. This was achieved using fluorescent microRNA reporter sensor assays and phenotype rescue experiments. PMID- 29030850 TI - Functional Analysis of MicroRNAs in Neurogenesis During Mouse Cortical Development. AB - The advantage of using in utero electroporation is that it can study the gene function during neurodevelopment in vivo. Using functional analysis of a microRNA (miRNA) gene as an example, this protocol describes a set of techniques that are crucial for the success of neurogenesis studies, including mice time mating, plasmid preparation, utero electroporation following miRNA injection into mice embryonic brain ventricle, labeling of proliferating cells with EDU (ethynyldeoxyuridine), cryosectioning, immunofluorescence staining, and confocal microscopic analysis. This chapter also provides detailed technical tips regarding experimental planning, mouse surgery, multi-embryo injection with different plasmids, electroporation, and maintenance of pregnant mother with post electroporated embryo. PMID- 29030851 TI - Cellular Approaches in Investigating Argonaute2-Dependent RNA Silencing. AB - In mammals, there are four Argonaute (Ago) family proteins that play crucial roles in RNA silencing, a process wherein microRNA (miRNA) mediates inhibition of target mRNA translation. Among the Ago proteins, Argonaute2 (Ago2) uniquely possesses an endoribonuclease (slicer) activity that is critical for the biogenesis of specific miRNAs and mRNA cleavage. This Ago2 slicer activity is required for postnatal development. Despite its important roles, there are still gaps in our understanding of the mechanistic basis of Ago2's unique functions in vivo due to a limited availability of experimental tools. In order to investigate Ago2's functions, we generated a new cellular model of Ago2-deficiency in 3T3 mouse embryonic fibroblasts (MEFs). This cell line can be used for investigating general Ago2 functions, but also for further understanding of Ago2's unique characteristics including the slicer activity, specific amino acid residues, and domains in Ago2 by reconstitution of Ago2 mutants. Here, we describe the methods for establishing Ago2-deficient MEFs and for reconstituting the MEFs with an Ago2 mutant lacking its slicer activity by means of a retrovirus-mediated gene transfer. PMID- 29030852 TI - Genomic Tagging of AGO1 Using CRISPR/Cas9-Mediated Homologous Recombination. AB - Tagging of genes at the endogenous loci is a powerful strategy for the analysis of protein function. We have developed a homologous recombination-based approach for inserting epitope tag into Drosophila AGO1 locus by employing the CRISPR/Cas9 technology. The methodology involves co-expression of sgRNA (containing 20 nucleotide AGO1 targeting sequence) and Cas9 protein, together with a donor template that has HA-AGO1 cassette flanked by sequences homologous to the AGO1 locus. The integration is efficient and readily monitored by immunostaining of the transgenic cell line. This method facilitates rapid generation of stable cell lines and allows insertion of any tag sequence into endogenous loci, thus accelerating characterization of the tagged proteins. PMID- 29030853 TI - Accurate Profiling and Quantification of tRNA Fragments from RNA-Seq Data: A Vade Mecum for MINTmap. AB - There is an increasing interest within the scientific community in identifying tRNA-derived fragments (tRFs) and elucidating the roles they play in the cell. Such endeavors can be greatly facilitated by mining the numerous datasets from many cellular contexts that exist publicly. However, the standard mapping tools cannot be used for the purpose. Several factors complicate this endeavor including: the presence of multiple identical or nearly identical isodecoders at various genomic locations; the presence of identical sequence segments that are shared by isodecoders of the same or even different anticodons; the existence of numerous partial tRNA sequences across the genome; the existence of hundreds of "lookalike" sequences that resemble true tRNAs; and others. This is generating a need for specialized tools that can mine deep sequencing data to identify and quantify tRFs. We discuss the various complicating factors and their ramifications, and how to use and run MINTmap, a tool that addresses these considerations. PMID- 29030854 TI - Acute Pancreatitis Secondary to Severe Hypertriglyceridaemia in a Patient with Type 1a Glycogen Storage Disease: Emergent Use of Plasmapheresis. AB - Acute pancreatitis is a well-recognised complication of hypertriglyceridaemia. High serum triglycerides may develop in the autosomal recessive disorder glycogen storage disease (GSD). Plasmapheresis has been effective in reducing triglyceride levels in pancreatitis secondary to other conditions but not previously described in GSD. We describe a 16-year-old male with type 1a GSD who presented with severe abdominal pain, tachycardia and tachypnoea. Abdominal computed tomography (CT) demonstrated acute pancreatitis. Serum triglycerides were 91.8 mM. Despite intravenous fluids and morphine sulphate, he remained seriously ill, and plasmapheresis was therefore started. After daily plasma exchange for 6 days, triglyceride levels dropped to 5 mM. This was associated with a rapid resolution of pancreatitis. Plasmapheresis is effective in rapidly reducing hypertriglyceridaemia from numerous causes, including glycogen storage disease, and may facilitate recovery from acute pancreatitis. PMID- 29030855 TI - Extended Experience of Lower Dose Sapropterin in Irish Adults with Mild Phenylketonuria. AB - Adherence to dietary and treatment recommendations is a long-standing concern for adults and adolescents with PKU and treating clinicians. In about 20-30% of PKU patients, Phe levels may be controlled by tetrahydrobiopterin (BH4) therapy. The European PKU 2017 Guidelines recommends treatment with BH4 for cases of proven long-term BH4 responsiveness, with a recommended dosage of Sapropterin 10-20 mg/kg/day.We report four young Irish patients with mild PKU, known to be BH4 responsive, who were treated with lower doses of Sapropterin for over 7 years.Case 1: Female, currently age 20. Genotype p. 165T/p/F39L, c.[194T>C]; [117C>G]. Newborn Phe: 851 MUmol/L. Pre-Sapropterin Phe tolerance: 600 mg Phe/day to maintain Phe levels <400 MUmol/L. Commenced on Sapropterin 400 mg (6.5 mg/kg/day) with increase in Phe tolerance to 800 mg/day.Case 2: Female, currently age 23. Genotype p. 165T/pF39L; c.[194T>C]; [117C>G]. Newborn Phe: 714 MUmol/L. Pre-Sapropterin Phe tolerance: 700 mg Phe/day. Commenced on Sapropterin 400 mg (8 mg/kg/day) with increase in Phe tolerance to 800 mg/day.Case 3: Male, currently age 22. Genotype p. 165T/p.S349P; c.[194T>C][1045T>C]. Newborn Phe: 1,036 MUmol/L. Pre-Sapropterin Phe tolerance: 600 mg Phe/day. Commenced on Sapropterin 400 mg (5.4 mg/kg/day). Increased to 1,600 mg Phe/day.Case 4: Female, currently age 29. Genotype p.R408W/p/p.Y414C; c.[1222C>T], [1241A>G]. Newborn Phe: 1,600 MUmol/L. Pre-Sapropterin tolerance: 450 mg/day. Commenced on Sapropterin 400 mg (5.0 mg/kg/day). Increased to 900 mg Phe/day.Almost 7 years of surveillance for these four patients has shown that this dose of Sapropterin (range 5-8 mg/kg day) was well tolerated and effective with a significant response to treatment and a marked improvement in quality of life at these lower Sapropterin doses. PMID- 29030856 TI - Mitochondrial 3-Hydroxy-3-Methylglutaryl-CoA Synthase Deficiency: Unique Presenting Laboratory Values and a Review of Biochemical and Clinical Features. AB - We report an 8-month-old infant with decreased consciousness after a febrile episode and reduced oral intake. He was profoundly acidotic but his lactate was normal. Serum triglycerides were markedly elevated and HDL cholesterol was very low. The urine organic acid analysis during the acute episode revealed a complex pattern of relative hypoketotic dicarboxylic aciduria, suggestive of a potential fatty acid oxidation disorder. MRI showed extensive brain abnormalities concerning for a primary energy deficiency. Whole exome sequencing revealed heterozygotic HMGCS2 variants. HMGCS2 encodes mitochondrial 3-hydroxy-3 methylglutaryl-CoA (HMG-CoA) synthase-2 (HMGCS2), which catalyzes the irreversible and rate-limiting reaction of ketogenesis in the mitochondrial matrix. Autosomal recessive HMG-CoA synthase deficiency (HMGCS2D) is characterized by hypoketotic hypoglycemia, vomiting, lethargy, and hepatomegaly after periods of prolonged fasting or illness. A retrospective analysis of the urine organic acid analysis identified 4-hydrox-6-methyl-2-pyrone, a recently reported putative biomarker of HMGCS2D. There was also a relative elevation of plasma acetylcarnitine as previously reported in one case. Our patient highlights a unique presentation of HMGCS2D caused by novel variants in HMGCS2. This is the first report of HMGCS2D with a significantly elevated triglyceride level and decreased HDL cholesterol level at presentation. Given this, we suggest that HMGCS2D should be considered in the differential diagnosis when hypertriglyceridemia, or low HDL cholesterol levels are seen in a child who presents with acidosis, mild ketosis, and mental status changes after illness or prolonged fasting. Although HMGCS2D is a rare disorder with nonspecific symptoms, with the advent of next-generation sequencing, and the recognition of novel biochemical biomarkers, the incidence of this condition may become better understood. PMID- 29030857 TI - Funding blood safety in the 21st century. AB - BACKGROUND: Since 2000, there has been an historic increase in international development assistance, including blood safety projects. The result has been increased blood donations and infectious disease screening in many beneficiary countries. A comprehensive examination of international development assistance for blood safety has yet to be completed. STUDY DESIGN AND METHODS: This report examines publicly available information, including donor agency websites and databases and data from the 2008 and 2012 World Health Organization Global Database on Blood Safety. RESULTS: Between 2000 and 2015, from $602.4 million to $2.1 billion in international development assistance was allocated to blood safety programs worldwide, mostly as part of the global response to the human immunodeficiency virus/acquired immunodeficiency syndrome epidemic. The US President's Emergency Plan for AIDS Relief and the Global Fund to Fight AIDS, Tuberculosis, and Malaria were responsible for the majority of blood safety funding, which peaked in 2010 and declined through 2015. CONCLUSION: Between 2000 and 2015, countries with high burdens of human immunodeficiency virus/acquired immunodeficiency syndrome received funding and technical assistance to improve national laboratories, increase blood component production, and strengthen clinical practice. Global trends in international development assistance at large, including aid for blood safety, suggest that funding will not rebound. PMID- 29030858 TI - Longitudinal melanonychia due to voriconazole therapy during treatment of chromoblastomycosis. PMID- 29030859 TI - Outpatient parenteral antimicrobial therapy in Enterococcus faecalis infective endocarditis. AB - WHAT IS KNOWN AND OBJECTIVE: Enterococcus faecalis is the third most common causal agent of infective endocarditis. Currently, the treatment recommended is a combination of ampicillin (2 g/4 h) plus ceftriaxone (2 g/12 h), so patients must remain hospitalized for almost 6 weeks to receive the treatment. They are not generally included in outpatient parenteral antimicrobial therapy programs because 2 different electronic pumps are required to administer these 2 antibiotics. To enable the treatment of patients with E. faecalis IE at home, we designed a continuation combination regimen of ceftriaxone 4 g once daily in a short infusion plus ampicillin 2 g/4 h using a programmable pump. METHODS: We analyzed a cohort of patients attended in an outpatient parenteral antimicrobial therapy program that has been working since 2012 in 2 tertiary hospitals. We selected patients attended in this program for E. faecalis IE treated with a continuation regimen of ampicillin 12 g daily (2 g/4 h) and ceftriaxone 4 g every 24 hours between July 2012 and March 2017. RESULTS AND DISCUSSION: Of the 720 patients included in the outpatient parenteral antimicrobial therapy program, 42 had infective endocarditis, and 4 (9.52%) were treated using the combination regimen described above. All patients were men, and all had left-sided native valve infective endocarditis. All 4 patients received ampicillin 2 g every 4 hours and ceftriaxone 2 g every 12 hours in hospital, for a median duration of 25 days (IQR 15-32). Thereafter, in the program, they received the following regimen: a 30-minute infusion of ceftriaxone 4 g in 250 mL of saline solution, followed by ampicillin 12 g daily in 500 mL of saline solution delivered by a pump programmed to administer 2 g every 4 hours. Patients received this treatment at home for a median of 22.5 days (IQR 13-32). All patients achieved clinical and microbiological cure with no recurrences or complications after a lengthy follow up period (median 365 days, IQR 221-406). No drug-related adverse events or problems with the pump system were reported. WHAT IS NEW AND CONCLUSIONS: Use of ceftriaxone 4 g in a single dose yields a mean plasma concentration of 30 MUg/mL. Ceftriaxone also has a high plasma protein binding capability, and once this binding is saturated, there is no reason to administer higher doses. Therefore, it seems reasonable to use a dose of 4 g of ceftriaxone once daily to have a synergist effect with ampicillin within the vegetation, and enable the treatment of patients with E. faecalis infective endocarditis at home. In conclusion, the administration of ampicillin (2 g/4 h) plus ceftriaxone (4 g/24 h) as a continuation regimen in an outpatient parenteral antimicrobial therapy program may be as effective and safe as the usual lengthy in-hospital regimen (ampicillin 2 g/4 h and ceftriaxone 2 g/12 h) in patients with E. faecalis infective endocarditis. PMID- 29030860 TI - The Effects of Short-Time Temperature Abuse on the Microbial and Sensory Quality of Chilled Saithe (Pollachius virens) Fillets. AB - : Chilled fish products are highly perishable with a limited shelf life (10 to 14 d). For this reason, the control of the cold chain for fish is essential. This study's objective was to investigate the effects of short-time temperature abuse during processing on spoilage of chilled saithe (Pollachius virens) fillets. Analysis of microbial growth, freshness grades, and sensory score by Quality Index method, as well as pH, were carried out during a 10-d storage period at 2 +/- 2 degrees C. Before storage, the fillets were kept at 16 degrees C for 0, 1, and 2 h. The results showed that spoilage of the fillets was accelerated with longer holding time at 16 degrees C. The 1- and 2-h holding before packing and storage caused a 22% (2 d) and 44% (4 d) loss of shelf life, respectively, compared to fillets that were packed immediately after processing. These findings indicate how bottlenecks and delays during processing may result in loss of microbial and sensory quality of chilled fish products. PRACTICAL APPLICATION: The observations show the importance of maintaining a low temperature in fish, even for a short period such as during processing. Any delays, such as due to buffering or mechanical failure, may accelerate spoilage of chilled products during subsequent storage. This effect is even more pronounced when products are packed in bulk volumes as the cooling rate is much slower than the piece-by-piece cooling rate. PMID- 29030861 TI - Dynamics of plasma cytokines in a patient with deficiency of interleukin-36 receptor antagonist successfully treated with anakinra. PMID- 29030862 TI - Establishing Standards on Colors from Natural Sources. AB - Color additives are applied to many food, drug, and cosmetic products. With up to 85% of consumer buying decisions potentially influenced by color, appropriate application of color additives and their safety is critical. Color additives are defined by the U.S. Federal Food, Drug, and Cosmetic Act (FD&C Act) as any dye, pigment, or substance that can impart color to a food, drug, or cosmetic or to the human body. Under current U.S. Food and Drug Administration (FDA) regulations, colors fall into 2 categories as those subject to an FDA certification process and those that are exempt from certification often referred to as "natural" colors by consumers because they are sourced from plants, minerals, and animals. Certified colors have been used for decades in food and beverage products, but consumer interest in natural colors is leading market applications. However, the popularity of natural colors has also opened a door for both unintentional and intentional economic adulteration. Whereas FDA certifications for synthetic dyes and lakes involve strict quality control, natural colors are not evaluated by the FDA and often lack clear definitions and industry accepted quality and safety specifications. A significant risk of adulteration of natural colors exists, ranging from simple misbranding or misuse of the term "natural" on a product label to potentially serious cases of physical, chemical, and/or microbial contamination from raw material sources, improper processing methods, or intentional postproduction adulteration. Consistent industry-wide safety standards are needed to address the manufacturing, processing, application, and international trade of colors from natural sources to ensure quality and safety throughout the supply chain. PMID- 29030863 TI - HOTAIR but not ANRIL long non-coding RNA contributes to the pathogenesis of multiple sclerosis. AB - Studies have revealed that dysregulation in gene expression is one of the main aspects of multiple sclerosis (MS) pathogenesis. Although the molecular pathways underlying the immunomodulatory role of vitamin D (VD) in MS is not completely elucidated, VD has more recently become a topic of interest in immune regulation and is widely administered to patients with MS as an immunomodulatory supplement. Long non-coding RNAs (lncRNAs) are known to play important roles in regulation of gene expression via different mechanisms. Given that VD-related genes are regulated by epigenetic mechanisms, here we aimed to evaluate the role of VD in combination with HOTAIR and ANRIL lncRNAs using in vivo, in vitro and in silico experiments in MS pathogenesis. Our data revealed that HOTAIR but not ANRIL lncRNA is probably involved in the pathogenesis of MS and experimental autoimmune encephalomyelitis through an unclear mechanism and it seems that by affecting the expression, inflammation and VD can influence HOTAIR-related mechanisms, which require further study. PMID- 29030864 TI - Phase IV head-to-head randomized controlled trial comparing ingenol mebutate 0.015% gel with diclofenac sodium 3% gel for the treatment of actinic keratosis on the face or scalp. AB - BACKGROUND: Ingenol mebutate (IngMeb) and diclofenac sodium (DS) are approved treatments for actinic keratosis (AK). OBJECTIVES: To compare the efficacy and safety of IngMeb 0.015% gel with DS 3% gel (NCT02406014). METHODS: Patients with 4-8 visible, discrete AK lesions on the face/scalp in a 25 cm2 contiguous area of skin were randomized 1:1 to IngMeb once-daily for three consecutive days or DS twice-daily for 90 days. Patients with AK lesions at Week 8 following IngMeb were offered a second IngMeb course. Primary end point was complete clearance of AK lesions (AKCLEAR 100) at end of first treatment course (Week 8, IngMeb; Week 17, DS). Secondary end points included AKCLEAR 100 at end of last treatment course and Week 17; adverse events (AEs) were assessed at these time points. Patients completed treatment satisfaction questionnaires for medication (TSQM; Week 17). RESULTS: AKCLEAR 100 at end of first treatment course was higher with IngMeb (34%) vs. DS (23%; P = 0.006). AKCLEAR 100 at end of last IngMeb course (53%) and Week 17 (45%) was higher than DS (both P < 0.001). The most frequent AE was application-site erythema (IngMeb 19%; DS 12%). Treatment-related AE (TRAE) duration was shorter with IngMeb. TRAE withdrawals were lower for IngMeb (2%) vs. DS (6%). TSQM scores for global satisfaction (P < 0.001) and effectiveness (P = 0.002) were higher with IngMeb, as was dosing instruction adherence (>= 90% vs. 70%). CONCLUSIONS: AKCLEAR 100, patient treatment satisfaction and effectiveness were significantly higher with IngMeb compared with DS, demonstrating superiority of IngMeb for AK treatment on face/scalp. PMID- 29030866 TI - Characterization of Sensory Differences in Mixing and Premium Rums Through the Use of Descriptive Sensory Analysis. AB - : This study identified and quantitated perceived sensory differences between 7 premium rums and 2 mixing rums using a hybrid of the Quantitative Descriptive Analysis and Spectrum methods. In addition, the results of this study validated the previously developed rum flavor wheel created from web-based materials. Results showed that the use of the rum flavor wheel aided in sensory term generation, as 17 additional terms were generated after the wheel was provided to panelists. Thirty-eight sensory terms encompassing aroma, aroma-by-mouth, mouthfeel, taste and aftertaste modalities, were generated and evaluated by the panel. Of the finalized terms, only 5 did not exist previously on the rum flavor wheel. Twenty attributes were found to be significantly different among rums. The majority of rums showed similar aroma profiles with the exception of 2 rums, which were characterized by higher perceived intensities of brown sugar, caramel, vanilla, and chocolate aroma, caramel, maple, and vanilla aroma-by-mouth and caramel aftertaste. PRACTICAL APPLICATION: These results demonstrate the previously developed rum flavor wheel can be used to adequately describe the flavor profile of rum. Additionally, results of this study document the sensory differences among premium rums and may be used to correlate with analytical data to better understand how changes in chemical composition of the product affect sensory perception. PMID- 29030865 TI - The 22Rv1 prostate cancer cell line carries mixed genetic ancestry: Implications for prostate cancer health disparities research using pre-clinical models. AB - BACKGROUND: Understanding how biological factors contribute to prostate cancer (PCa) health disparities requires mechanistic functional analysis of specific genes or pathways in pre-clinical cellular and animal models of this malignancy. The 22Rv1 human prostatic carcinoma cell line was originally derived from the parental CWR22R cell line. Although 22Rv1 has been well characterized and used in numerous mechanistic studies, no racial identifier has ever been disclosed for this cell line. In accordance with the need for racial diversity in cancer biospecimens and recent guidelines by the NIH on authentication of key biological resources, we sought to determine the ancestry of 22RV1 and authenticate previously reported racial identifications for four other PCa cell lines. METHODS: We used 29 established Ancestry Informative Marker (AIM) single nucleotide polymorphisms (SNPs) to conduct DNA ancestry analysis and assign ancestral proportions to a panel of five PCa cell lines that included 22Rv1, PC3, DU145, MDA-PCa-2b, and RC-77T/E. RESULTS: We found that 22Rv1 carries mixed genetic ancestry. The main ancestry proportions for this cell line were 0.41 West African (AFR) and 0.42 European (EUR). In addition, we verified the previously reported racial identifications for PC3 (0.73 EUR), DU145 (0.63 EUR), MDA-PCa-2b (0.73 AFR), and RC-77T/E (0.74 AFR) cell lines. CONCLUSIONS: Considering the mortality disparities associated with PCa, which disproportionately affect African American men, there remains a burden on the scientific community to diversify the availability of biospecimens, including cell lines, for mechanistic studies on potential biological mediators of these disparities. This study is beneficial by identifying another PCa cell line that carries substantial AFR ancestry. This finding may also open the door to new perspectives on previously published studies using this cell line. PMID- 29030868 TI - Comment on 'A visual literacy course for dermatology trainees'. PMID- 29030867 TI - Do host-associated gut microbiota mediate the effect of an herbicide on disease risk in frogs? AB - Environmental stressors, such as pollutants, can increase disease risk in wildlife. For example, the herbicide atrazine affects host defences (e.g. resistance and tolerance) of the amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd), but the mechanisms for these associations are not entirely clear. Given that pollutants can alter the gut microbiota of hosts, which in turn can affect their health and immune systems, one potential mechanism by which pollutants could increase infection risk is by influencing host-associated microbiota. Here, we test whether early-life exposure to the estimated environmental concentration (EEC; 200 MUg/L) of atrazine affects the gut bacterial composition of Cuban tree frog (Osteopilus septentrionalis) tadpoles and adults and whether any atrazine-induced change in community composition might affect host defences against Bd. We also determine whether early-life changes in the stress hormone corticosterone affect gut microbiota by experimentally inhibiting corticosterone synthesis with metyrapone. With the exception of changing the relative abundances of two bacterial genera in adulthood, atrazine did not affect gut bacterial diversity or community composition of tadpoles (in vivo or in vitro) or adults. Metyrapone did not significantly affect bacterial diversity of tadpoles, but significantly increased bacterial diversity of adults. Gut bacterial diversity during Bd exposure did not predict host tolerance or resistance to Bd intensity in tadpoles or adults. However, early-life bacterial diversity negatively predicted Bd intensity as adult frogs. Specifically, Bd intensity as adults was associated negatively with the relative abundance of phylum Fusobacteria in the guts of tadpoles. Our results suggest that the effect of atrazine on Bd infection risk is not mediated by host-associated microbiota because atrazine does not affect microbiota of tadpoles or adults. However, host associated microbes seem important in host resistance to Bd because the early life microbiota, during immune system development, predicted later-life infection risk with Bd. Overall, our study suggests that increasing gut bacterial diversity and relative abundances of Fusobacteria might have lasting positive effects on amphibian health. PMID- 29030869 TI - Evaluation of the predictive performance of bleeding risk scores in patients with non-valvular atrial fibrillation on oral anticoagulants. AB - WHAT IS KNOWN AND OBJECTIVE: Bleeding risk scores (BRSs) aid in the assessment of oral anticoagulant-related bleeding risk in patients with atrial fibrillation. Ideally, the applicability of a BRS needs to be assessed, prior to its routine use in a population other than the original derivation cohort. Therefore, we evaluated the performance of 6 established BRSs to predict major or clinically relevant bleeding (CRB) events associated with the use of oral anticoagulant (OAC) among Malaysian patients. METHODS: The pharmacy supply database and the medical records of patients with non-valvular atrial fibrillation (NVAF) receiving warfarin, dabigatran or rivaroxaban at two tertiary hospitals were reviewed. Patients who experienced an OAC-associated major or CRB event within 12 months of follow-up, or who have received OAC therapy for at least 1 year, were identified. The BRSs were fitted separately into patient data. The discrimination and the calibration of these BRSs as well as the factors associated with bleeding events were then assessed. RESULTS: A total of 1017 patients with at least 1-year follow-up period, or those who developed a bleeding event within 1 year of OAC use, were recruited. Of which, 23 patients experienced a first major bleeding event, whereas 76 patients, a first CRB event. Multivariate logistic regression results show that age of 75 or older, prior bleeding and male gender are associated with major bleeding events. On the other hand, prior gastrointestinal bleeding, a haematocrit value of less than 30% and renal impairment are independent predictors of CRB events. All the BRSs show a satisfactory calibration for major and CRB events. Among these BRSs, only HEMORR2 HAGES (C statistic = 0.71, 95% CI 0.60-0.82, P < .001) and ATRIA score (C-statistic = 0.70, 95% CI 0.58-0.82, P < .001) show acceptable discrimination performance for major bleeding events. All the 6 BRSs, however, lack acceptable predictive performance for CRB events. WHAT IS NEW AND CONCLUSION: To the best of our knowledge, this is the first evaluation study of the predictive performance of these 6 BRSs on clinically relevant bleeding events applied to the same cohort consisting of mainly Asian novel oral anticoagulant users. These BRSs show poor to acceptable predictive performance on OAC-induced major or CRB events. An improvement in the existing BRSs for OAC users is warranted. PMID- 29030870 TI - The competitive nature of signal transducer and activator of transcription complex formation drives phenotype switching of T cells. AB - Signal transducers and activators of transcription (STATs) are key molecular determinants of T-cell fate and effector function. Several inflammatory diseases are characterized by an altered balance of T-cell phenotypes and cytokine secretion. STATs, therefore, represent viable therapeutic targets in numerous pathologies. However, the underlying mechanisms by which the same STAT proteins regulate both the development of different T-cell phenotypes and their plasticity during changes in extracellular conditions remain unclear. In this study, we investigated the STAT-mediated regulation of T-cell phenotype formation and plasticity using mathematical modelling and experimental data for intracellular STAT signalling proteins. The close fit of our model predictions to the experimental data allows us to propose a potential mechanism for T-cell switching. According to this mechanism, T-cell phenotype switching is the result of the relative redistribution of STAT dimer complexes caused by the extracellular cytokine-dependent STAT competition effects. The developed model predicts that the balance between the intracellular STAT species defines the amount of the produced cytokines and thereby T-cell phenotypes. The model predictions are consistent with the experimentally observed interferon-gamma to interleukin-10 switching that regulates human T helper type 1/type 1 regulatory T cell responses. The proposed model is applicable to a number of STAT signalling circuits. PMID- 29030871 TI - Fetal/neonatal alloimmune thrombocytopenia due to anti-CD36 antibodies: antibody evaluations by CD36-transfected cell lines. AB - BACKGROUND: Isoantibodies against CD36 (platelet glycoprotein 4), developed in Type I CD36-deficient mothers are frequently reported as the cause of fetal/neonatal alloimmune thrombocytopenia in the Asian population. Therefore, further detailed characterization of anti-CD36-mediated fetal/neonatal alloimmune thrombocytopenia is warranted. Here, we report the characterization of a patient with fetal/neonatal alloimmune thrombocytopenia in a Taiwanese family caused by anti-CD36 isoantibodies using a novel antigen-capture method. STUDY DESIGN AND METHODS: Platelets and monocytes were analyzed for CD36 expression by flow cytometry. Sequencing analysis of the CD36 gene was performed to identify the mutation underlying the CD36 deficiency. Stable transfected human embryonic kidney HEK293 cells expressing recombinant CD36 were established. These cells were used for the characterization of anti-CD36 isoantibodies by flow cytometry, immunoprecipitation, and antigen-capture assay. RESULTS: Flow cytometry analysis revealed a total absence of CD36 on both platelets and monocytes of the mother (Type I CD36-deficient) caused by heterozygous deletions of the CD36 gene (332_333delCA and c.1254 + 6_1254 + 11delTATTTG). Analysis of maternal serum with CD36-transfected HEK293 cells by flow cytometry, immunoprecipitation, and antigen capture assay demonstrated the presence of anti-CD36 isoantibodies in maternal serum. Interestingly, this antibody could not be detected by the monoclonal antibody immobilization of platelet antigens assay when anti-CD36 monoclonal antibody (clone FA6-152) was used as the capture antibody. CONCLUSION: This case reemphasizes the role of anti-CD36 isoantibodies on the pathomechanism of fetal/neonatal alloimmune thrombocytopenia. The fact that the monoclonal antibody immobilization of platelet antigens assay does not seem to be reliable for the identification of all anti-CD36 antibodies indicates that screening of anti-CD36 isoantibodies by a monoclonal antibody-independent method, as presented here, should be considered. PMID- 29030872 TI - Survival and detection of Bacillus cereus in the presence of Escherichia coli, Salmonella enteritidis, Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans after rechallenge in make-up removers. AB - OBJECTIVE: Pathogenic contamination of cosmetics intended to be applied on or around the eye area, including make-up removers, may lead to severe eye infections. To assess the efficacy of antimicrobial preservatives in these products, we investigated the survival and detection of Bacillus cereus F 4227A spiked into make-up removers, alone and in the presence of other relevant micro organisms. METHODS: Four brands of make-up removers, A, B, C and D, were challenged three times (day 0, day 7 and day 14) using B. cereus, in pure and mixed cultures, at a final concentration of 5 log CFU per mL of Bacillus cereus or 6 log CFU per mL for other micro-organisms. Inoculated samples were diluted and spiral-plated after 30 min and 24 h of each challenge onto selective media for recovery of surviving micro-organisms: BACARA (B. cereus), MacConkey (E. coli), ChromID (P. aeruginosa), XLT4 (S. enteritidis), Baird Parker agar (Staph. aureus) and PDA+chlortetracycline HCL (C. albicans). RESULTS: The population of B. cereus spiked as a pure culture increased significantly from the first to the third challenge after 30-min exposure time, going from 0.73 to 2.59 in A, from 0.80 to 2.69 in B and from 0.80 to 1.67 log CFU per mL in C (P < 0.05). Likewise, the B. cereus population from the mixed cultures had a significantly higher survival count at the third challenge: from 0.12 log MPN per mL to 2.16 log CFU per mL in A, 0.57 to 2.27 log CFU per mL in B and from undetected (LOD = 0.48 log MPN) to 0.98 log CFU per mL in C, respectively. After challenges, Staph. aureus, C. albicans and P. aeruginosa increased in B; Staph. aureus and C. albicans in C; and E. coli and Staph. aureus in D. The growth of other bacteria types was unaffected by the number of challenges, but B. cereus population was detected with the third challenge. CONCLUSION: It is appropriate to assess the antimicrobial efficacy of preservatives using at least three challenges, especially for cosmetics that are subjected to repetitive contamination by users. PMID- 29030873 TI - A feasibility study for a triple-blind randomized controlled trial investigating the effects of oral isotretinoin on mood and quality of life in patients with acne vulgaris. AB - Isotretinoin is used in the treatment of severe acne vulgaris (AV), but has controversially been associated with depression and suicide. Large prospective studies have failed to translate this clinically. We undertook a feasibility study to investigate the parameters of a triple-blind, randomized controlled trial (RCT) assessing the effect of oral isotretinoin on quality of life (QoL) and mood in patients with AV. Patients meeting the inclusion criteria were randomized for 2 weeks to isotretinoin or doxycycline. Participants completed verified depression and QoL screening questionnaires at baseline and week 2. In total, 194 patients with AV were screened, with 48 meeting the inclusion criteria and 13 of these being willing to participate. The follow-up rate was 92% and questionnaire response rate was 96%. To our knowledge, this is the first study to demonstrate a successful design for a triple-blind RCT investigating the effects of isotretinoin on mood in patients with AV. PMID- 29030874 TI - Depuration of Cadmium from Blue Mussel (Mytilus edulis) by Protein Hydrolysate Fe2+ Complex: The Role of Metallothionein. AB - : Metallothionein (MT) plays a major role in the detoxification of toxic metal ions in mussel. This study served to investigate the effects of prepared protein hydrolysate-Fe2+ (PH-Fe2+ ) on depuration of cadmium salt (Cd2+ ) from blue mussel (Mytilus edulis). The results indicated that Cd2+ concentrations in control ranged from 46.1 to 47.1 MUg/g during 15 d of depuration. While, 40 mg/L PH-Fe2+ feed mussels exhibited obvious changes in Cd2+ concentration variables, which decreased by 22.8 MUg/g after 15 d of depuration, making them significantly lower than the values of the control. Our assumption was that Cd2+ could be dissociated effectively from the complex of MT-Cd2+ in mussels affected by the incorporation of PH-Fe2+ during the feeding period. Further results of homology modeling and molecular dynamics (MD) confirmed that the combined power between MT and Cd2+ weakened significantly by PH-Fe2+ . This condition affected the charge density and/or the loop flexibility of MT and decreased the interaction energy within MT-Cd2+ complex and resulted in the release of Cd2+ from the complex, thereby exhibiting excretion detoxification. Finally, by comparing the experimental results to MD results, significant positive correlations were observed between PH-Fe2+ and the depuration of Cd2+ from MT-Cd2+ complex. Overall, the findings of this study may help better understand the depuration mechanisms of Cd2+ combined with MT, and the PH-Fe2+ can be recommended as a depuration agent to decrease Cd2+ concentrations in mussels. PRACTICAL APPLICATION: Metallothionein (MT) is a low-molecular-weight protein with high metal-ion affinity. If the intracellular concentrations of metals are too high or if toxic metals are present within the cell, then the synthesis of MTs is induced and generated. In our previous work, it was found that the prepared hydrolysate metal element complex showed obvious depuration activity of heavy metals (Cd2+ ) from blue mussel (Mytilus edulis). This study provided further the depuration mechanisms of Cd2+ from mussel (M. edulis), in particular to the role of MT and its chelate during the depuration process. PMID- 29030875 TI - Protection of Grain Products from Sitophilus oryzae (L.) Contamination by Anti Insect Pest Repellent Sachet Containing Allyl Mercaptan Microcapsule. AB - : The purpose of this study was to develop an anti-insect pest repellent sachet to prevent Sitophilus oryzae (L.) (Coleoptera: Curculionidae) contamination in grain packaging. The anti-insect pest activities of essential oils (EOs) from garlic (Allium Sativum), ginger (Zingiber Officinalis), black pepper (Piper nigrum), onion (Allium cepa), and fennel (Foeniculum vulgare) as well as major compounds (allyl disulfide, AD; allyl mercaptan, AM) isolated from of garlic and onion (AD and AM) were measured against S. oryzae. The results revealed that garlic EO, onion EO, AD, and AM showed strong fumigant insecticidal activities. Among these, AM showed the highest acetylcholinesterase (AChE) inhibition rate, indicating that the fumigation insecticidal efficacy of AM is related with its AChE inhibition ability. Subsequently, the microcapsules were produced with a high efficiency (80.02%) by using AM as a core material and rice flour as a wall material. Finally, sachet composed of rice flour microcapsule containing 2% AM (RAM) was produced. Repellent assay was performed to measure anti-insect pest ability of the RAM sachet, showed remarkable repelling effect within 48 h both in the presence or absence of attractant. In a release profile of RAM sachet, it was expected to last over 20 mo during the distribution period of brown rice. Moreover, RAM sachet showed no undesirable changes to the sensory properties of the rice both before and after cooking. Taken together, these results suggest that the newly developed RAM sachet could be used as a packaging material to protect grain products from S. oryzae contamination. PRACTICAL APPLICATION: The rice weevil, Sitophilus oryzae (L.) (Coleoptera: Curculionidae), causes damages to stored products and its contamination in grain products has become a major problem in cereal market. To preserve brown rice, an anti-insect pest repellent sachet containing 2% allyl mercaptan was newly developed and it showed remarkable repellent abilities against S. oryzae. It could be used as an active food packaging system to protect grain products from insect pest contamination. PMID- 29030876 TI - Reproducibility of CMRO2 determination using dynamic 17 O MRI. AB - PURPOSE: To assess the reproducibility of 17 O MRI-based determination of the cerebral metabolic rate of oxygen consumption (CMRO2 ) in healthy volunteers. To assess the influence of image acquisition and reconstruction parameters on dynamic quantification of functional parameters such as CMRO2 . METHODS: Dynamic 17 O MRI data were simulated and used to investigate influences of temporal resolution (Deltat) and partial volume correction (PVC) on the determination of CMRO2 . Three healthy volunteers were examined in two separate examinations. In vivo 17 O MRI measurements were conducted with a nominal spatial resolution of (7.5 mm)3 using a density-adapted radial sequence with golden angle acquisition scheme. In each measurement, 4.0 +/- 0.1 L of 70%-enriched 17 O gas were administered using a rebreathing system. Data were corrected with a PVC algorithm, and CMRO2 was determined in gray matter (GM) and white matter (WM) compartments using a three-phase metabolic model (baseline, 17 O inhalation, decay phase). RESULTS: Comparison with the ground truth of simulations revealed improved CMRO2 determination after application of PVC and with Deltat <= 2:00 min. Evaluation of in vivo data yields to CMRO2,GM = 2.31 +/- 0.1 MUmol/g/min and to CMRO2,WM = 0.69 +/- 0.04 MUmol/g/min with coefficients of variation (CoV) of 0.3-5.5% and 4.3-5.0% for intra-volunteer and inter-volunteer data, respectively. CONCLUSION: This in vivo 17 O inhalation study demonstrated that the proposed experimental setup enables reproducible determination of CMRO2 in healthy volunteers. Magn Reson Med 79:2923-2934, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29030877 TI - Candida albicans possess a highly versatile and dynamic high-affinity iron transport system important for its commensal-pathogenic lifestyle. AB - Iron is an essential nutrient for nearly all organisms, but iron overdose is toxic. The human commensal-pathogenic fungus Candida albicans traverses host niches with markedly different iron availability. During systemic infection, C. albicans must activate the high-affinity iron permease Ftr1 to acquire iron sequestered by the host's iron-withholding defense and suppresses iron uptake while residing in the iron-rich gut to avoid toxicity. Ftr1 associates with a ferroxidase to form an iron transporter. C. albicans contains four permeases and five ferroxidase homologs, suggesting 20 possible subunit combinations. Here, we investigated the iron-dependent expression, cellular localization and interacting partners of all permeases and ferroxidases and the significance of each subunit for gastrointestinal colonization and systemic infection in mice. We uncovered three distinct patterns of iron-dependent expression and highly flexible ferroxidase-permease partnerships, which underlie a dynamic iron transport system that can be deftly tuned according to iron availability. We found functional differentiation as well as redundancy among the ferroxidases and permeases during both gastrointestinal colonization and bloodstream infection. We propose that C. albicans possesses a sophisticated iron acquisition and utilization system befitting its commensal-pathogenic lifestyle. Our findings reveal new possibilities for medical intervention of C. albicans infection. PMID- 29030878 TI - The Association Between PTSD and Functional Outcome Is Mediated by Perception of Cognitive Problems Rather Than Objective Neuropsychological Test Performance. AB - Posttraumatic stress disorder (PTSD) has been consistently linked to poorer functional outcomes, including quality of life, health problems, and social and occupational functioning. Less is known about the potential mechanisms by which PTSD leads to poorer functional outcomes. We hypothesized that neurocognitive functioning and perception of cognitive problems would both mediate the relationship between PTSD diagnosis and functioning. In a sample of 140 veterans of the recent wars and conflicts in Iraq and Afghanistan, we assessed PTSD symptoms, history of traumatic brain injury (TBI), depression, self-report measures of quality of life, social and occupational functioning, and reintegration to civilian life, as well as perception of cognitive problems. Veterans also completed a comprehensive neuropsychological battery of tests. Structural equation modeling revealed that perception of cognitive problems, but not objective neuropsychological performance, mediated the relationship between PTSD diagnosis and functional outcomes after controlling for TBI, depression, education, and a premorbid IQ estimate, b = -6.29, 95% bias-corrected bootstrapped confidence interval [-11.03, -2.88], showing a large effect size. These results highlight the importance of addressing appraisals of posttrauma cognitive functioning in treatment as a means of improving functional outcomes. PMID- 29030879 TI - Environmental and genetic regulation of white-opaque switching in Candida tropicalis. AB - Phenotypic switching is a strategy by which microbial organisms adapt to environmental changes. The human fungal pathogens, Candida albicans and Candida tropicalis, are closely related species and capable of undergoing morphological transitions. C. albicans primarily exists in human or warm-blooded animals as a commensal, whereas C. tropicalis not only exists as a commensal but also is widely distributed in the environment. In this study, we describe the environmental and genetic regulatory mechanisms of white-opaque switching in C. tropicalis, which is associated with virulence and sexual mating. A comparative study with C. albicans demonstrated that C. tropicalis responds to environmental stimuli, such as elevated CO2 levels and pH changes, in opposite manners. An acidic pH and elevated CO2 levels promote the opaque phenotype in C. albicans but have an opposite effect in C. tropicalis, whereas alkaline pH conditions facilitate white-to-opaque switching and sexual mating in C. tropicalis. The conserved Rim101-mediated pH sensing and Ras1-cAMP/PKA signaling pathways are involved in this regulation. By screening an overexpression library of transcription factors, we identified 26 white-opaque regulators, including WOR1, AHR1, EFG1, CUP9, BCR1 and SFL2. Transcriptional analysis indicated that the pH sensing and Ras1-cAMP/PKA signaling pathways and transcriptional regulators coordinately regulate white-to-opaque switching. PMID- 29030881 TI - Effects of dietary Greek oregano (Origanum vulgare ssp. hirtum) supplementation on rumen fermentation, enzyme profile and microbial communities in goats. AB - This study was conducted to examine in vivo long-term effects of dietary dried oregano (Origanum vulgare ssp. hirtum) whole plant on rumen fermentation, enzyme profile and microbial communities. For this purpose, eight healthy, adult, non lactating Alpine goats were kept in tie stalls equipped for individual feeding and randomly divided into two homogeneous groups: one fed 0.6 kg of a concentrate mixture and 0.6 kg of wheat straw without any supplementation and served as control group (CON) while the other group (OR) fed the same diet of CON but supplemented with 20 g of dried oregano plants (OPs) to provide daily dosage of 1 ml of essential oil (EO) per animal. The experimental period lasted 69 days and individual rumen fluid samples were obtained every 2 weeks at 0 and 4 hr after feeding. The results showed that dietary supplementation with OPs increased the protease activity (p < .001) and ammonia concentration (p < .05) in the rumen. Among the studied microbial populations, Peptostreptococcus anaerobius (p = .028) and Clostridium sticklandii (p < .001) were found to be the most sensitive to oregano at the current dosage. Furthermore, the total methanogen population significantly decreased (p < .05). It is concluded that a long-term dietary administration of OPs can suppress specific rumen micro-organisms and modify rumen fermentation favourably at least by means of suppressing methanogens. PMID- 29030880 TI - Direct saturation-corrected chemical exchange saturation transfer MRI of glioma: Simplified decoupling of amide proton transfer and nuclear overhauser effect contrasts. AB - PURPOSE: Chemical exchange saturation transfer (CEST) MRI has shown promise in tissue characterization in diseases like stroke and tumor. However, in vivo CEST imaging such as amide proton transfer (APT) MRI is challenging because of concomitant factors such as direct water saturation, macromolecular magnetization transfer, and nuclear overhauser effect (NOE), which lead to a complex contrast in the commonly used asymmetry analysis (MTRasym). Here, we propose a direct saturation-corrected CEST (DISC-CEST) analysis for simplified decoupling and quantification of in vivo CEST effects. METHODS: CEST MRI and relaxation measurements were carried out on a classical 2-pool creatine-gel CEST phantom and normal rat brains (N = 6) and a rat model of glioma (N = 8) at 4.7T. The proposed DISC-CEST quantification was carried out and compared with conventional MTRasym and the original three-offset method. RESULTS: We demonstrated that the DISC-CEST contrast in the phantom had much stronger correlation with MTRasym than the three offset method, which showed substantial underestimation. In normal rat brains, the DISC-CEST approach revealed significantly stronger APT effect in gray matter and higher NOE effect in white matter. Furthermore, the APT and NOE maps derived from DISC-CEST showed significantly higher APT effect in the tumors than contralateral normal tissue but no apparent difference in NOE. CONCLUSION: The proposed DISC-CEST method, by correction of nonlinear direct water saturation effect, serves as a promising alternative to both the commonly used MTRasym and the simplistic three-offset analyses. It provides simple yet reliable in vivo CEST quantification such as APT and NOE mapping in brain tumor, which is promising for clinical translation. Magn Reson Med 78:2307-2314, 2017. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29030882 TI - Accelerated multicontrast volumetric imaging with isotropic resolution for improved peri-infarct characterization using parallel imaging, low-rank and spatially varying edge-preserving sparse modeling. AB - PURPOSE: To achieve consistent effectiveness in reconstruction of fine image features for cases of varying contrast-to-noise ratio (CNR) to facilitate translating accelerated multicontrast volumetric imaging with isotropic resolution toward clinical utility in peri-infarct characterization. THEORY AND METHODS: A low-rank and spatially varying edge-preserving constrained compressed sensing parallel imaging reconstruction method (CP-LASER) is developed to effectively preserve contrast of small-scale structures for highly accelerated multicontrast volumetric imaging in CNR-limited scenarios. CP-LASER synergistically integrates parallel imaging, low-rank and spatially varying edge preserving sparse modeling to achieve high signal-to-noise-ratio efficiency by leveraging prior knowledge about signal properties including coil sensitivity weighting, spatiotemporally correlated signal relaxation, and spatially varying sparsity. RESULTS: In the preclinical study using highly accelerated multicontrast volumetric imaging with an isotropic 1.5-mm resolution, CP-LASER demonstrated robust multicontrast reconstruction of peri-infarct characteristics with excellent correspondence with histopathology. CP-LASER provides better delineation of the peri-infarct border zone with improved sharpness than alternative methods in a clinical demonstration on 1.5T with an isotropic 2.2-mm resolution achieved in a single breath-hold. CONCLUSION: Accelerated multicontrast volumetric imaging with isotropic resolution using CP-LASER has demonstrated the potential to improve peri-infarct characterization in a clinical setting. Magn Reson Med 79:3018-3031, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29030883 TI - Polyunsaturated fatty acids influence inflammatory markers in a cellular model for canine osteoarthritis. AB - Although it is well recognized that dietary supplementation with fish oil improves clinical symptoms in dogs suffering from osteoarthritis, the molecular basis for the dietary benefit is not yet completely resolved in dogs. This study was designed to further clarify how polyunsaturated fatty acids (PUFA) affect key factors of cartilage degeneration in a canine cell culture system mimicking osteoarthritis. Canine chondrocytes were incubated either without or with 10 MUm of eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), arachidonic acid (AA) or 3.6 MUm ibuprofen (Ibu) as positive control for 6 days. After the supplementation, cells were stimulated with 10 ng/ml interleukin-1beta (IL-1beta) for another 48 hr to induce osteoarthritic changes, or left unstimulated. We analysed fatty acid uptake via gas-liquid chromatography, nitric oxide (NO) production via Griess assay, prostaglandin E (PGE) production via ELISA and relative gene expression of several cartilage matrix proteinases, inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 via RT-qPCR. After supplementation, the chondrocytes rapidly incorporated the PUFA into their fatty acid pools. The stimulation with IL-1beta caused a marked increase of most of the inflammatory markers measured. N-3 PUFA EPA reduced IL-induced gene expression of iNOS and corresponding production of NO. N-6 PUFA AA also decreased iNOS and NO, but furthermore lowered gene expression of matrix metalloproteinase-3. On the other hand, AA upregulated the aggrecanase ADAMTS-5 and augmented the release of PGE. The effect of n-3 PUFA DHA turned out to be negligible. Our results reveal molecular mechanisms by which PUFA affect degenerative joint disease in dogs. Of particular importance is that not only EPA but also AA decreased several inflammatory markers in our model. Thus, we conclude that an appropriate balance of both n-3 and n-6 fatty acids deserves more attention in dietary interventions. PMID- 29030884 TI - How does dietary particle size affect carnivore gastrointestinal transit: A dog model. AB - The effect of dietary particle size on gastrointestinal transit in carnivores has not been studied and might offer more insight into their digestive physiology. This study evaluated the effect of two dietary particle sizes (fine = 7.8 mm vs. coarse = 13 mm) of chunked day-old chicks on transit parameters in dogs. Six beagle dogs were fed both dietary treatments in a crossover design of 7 days with transit testing on the fifth day. Transit parameters were assessed using two markers, that is a wireless motility capsule (IntelliCap(r) ) and titanium oxide (TiO2 ). Dietary particle size did not affect gastric emptying time (GRT), small bowel transit time (SBTT), colonic transit time (CTT) and total transit time (aTTT) of the capsule (p > .05). There was no effect of dietary particle size on TiO2 mean retention time (MRT) (p > .05). The time of last TiO2 excretion (MaxRT) differed (p = .013) between diets, being later for the coarse diet. Both MRT (R = 0.617, p = .032) and MaxRT (R = 0.814; p = .001) were positively correlated to aTTT. The ratio MRT/aTTT tended towards a difference between diets (p = .059) with the coarse diet exceeding fine diet values. Results show that the difference between capsule measurements and TiO2 is larger for the fine than the coarse diet suggesting that the capsule becomes more accurate when dietary particle size approaches marker size. Dietary particle size might have affected transit parameters but differences are too small to claim major physiological consequences. PMID- 29030885 TI - Phylogenetic distribution of a male pheromone that may exploit a nonsexual preference in lampreys. AB - Pheromones are among the most important sexual signals used by organisms throughout the animal kingdom. However, few are identified in vertebrates, leaving the evolutionary mechanisms underlying vertebrate pheromones poorly understood. Pre-existing biases in receivers' perceptual systems shape visual and auditory signalling systems, but studies on how receiver biases influence the evolution of pheromone communication remain sparse. The lamprey Petromyzon marinus uses a relatively well-understood suite of pheromones and offers a unique opportunity to study the evolution of vertebrate pheromone communication. Previous studies indicate that male signalling with the mating pheromone 3-keto petromyzonol sulphate (3kPZS) may exploit a nonsexual attraction to juvenile released 3kPZS that guides migration into productive rearing habitat. Here, we infer the distribution of male signalling with 3kPZS using a phylogenetic comparison comprising six of 10 genera and two of three families. Our results indicate that only P. marinus and Ichthyomyzon castaneus release 3kPZS at high rates. Olfactory and behavioural assays with P. marinus, I. castaneus and a subset of three other species that do not use 3kPZS as a sexual signal indicate that male signalling might have driven the evolution of female adaptations to detect 3kPZS with specific olfactory mechanisms and respond to 3kPZS with targeted attraction relevant during mate search. We postulate that 3kPZS communication evolved independently in I. castaneus and P. marinus, but cannot eliminate the alternative that other species lost 3kPZS communication. Regardless, our results represent a rare macroevolutionary investigation of a vertebrate pheromone and provide insight into the evolutionary mechanisms underlying pheromone communication. PMID- 29030888 TI - The emperor redressed: treating osteoporosis to prevent hip fractures in the oldest old. PMID- 29030887 TI - The impact of direct-fed microbials and enzymes on the health and performance of dairy cows with emphasis on colostrum quality and serum immunoglobulin concentrations in calves. AB - Thirty-six cows were blocked by calving date and randomly assigned to one of three treatments. Cows were on treatments 3 weeks prepartum through 8 weeks post partum. Treatments were as follows: (i) no direct-fed microbial (DFM) or cellulase and amylase enzymes (C), (ii) 45.4 g/day of DFM (D) or (iii) 45.4 g/day of DFM and 18.2 g/day of enzyme (DE). Total mixed ration fed and refused were measured daily to determine dry matter intake (DMI). Blood samples were taken three times weekly and analysed for beta-hydroxybutyrate, glucose and non esterified fatty acids. Body weight (BW) was measured weekly. Colostrum was weighed and analysed for IgA and IgG concentration. Calves were fed 4 L of colostrum within 2 hr of birth. Calf blood samples were taken at 0 and 24 hr for analysis of IgA and IgG concentrations and apparent efficiency of absorption. Milk yield was measured daily and samples collected weekly. Initial BW was different among treatments with D being lesser than C or DE treatments. Body weight, weight gain, efficiency of gain, DMI and blood parameters were unaffected. Treatment did not affect colostrum yield. Ash percentage of colostrum tended to increase with D and DE, while IgA and total solids yield decreased with D. Colostrum fat yield was decreased in D and DE. Treatments did not impact BW, serum IgA and IgG concentrations or apparent efficiency of absorption of calves. Post-partum BW, DMI, blood parameters, milk production and composition were unaffected by treatment. However, cows on D gained more BW and tended to have greater efficiency of gain compared to those on DE, but were similar to C. Somatic cell scores were greatest for D. Results indicate that DFM and enzyme supplementation did not improve health and performance of dairy cattle during the pre- and post-partum periods under conditions of this study. PMID- 29030889 TI - Activating Inert Alkali-Metal Ions by Electron Transfer from Manganese Oxide for Formaldehyde Abatement. AB - Alkali-metal ions often act as promoters rather than active components due to their stable outermost electronic configurations and their inert properties in heterogeneous catalysis. Herein, inert alkali-metal ions, such as K+ and Rb+ , are activated by electron transfer from a Hollandite-type manganese oxide (HMO) support for HCHO oxidation. Results from synchrotron X-ray diffraction, absorption, and photoelectron spectroscopies demonstrate that the electronic density of states of single alkali-metal adatoms is much higher than that of K+ or Rb+ , because electrons transfer from manganese to the alkali-metal adatoms through bridging lattice oxygen atoms. Electron transfer originates from the interactions of alkali metal d-sp frontier orbitals with lattice oxygen sp3 orbitals occupied by lone-pair electrons. Reaction kinetics data of HCHO oxidation reveal that the high electronic density of states of single alkali metal adatoms is favorable for the activation of molecular oxygen. Mn L3 -edge and O K-edge soft-X-ray absorption spectra demonstrate that lattice oxygen partially gains electrons from the Mn eg orbitals, which leads to the upshift in energy of lattice oxygen orbitals. Therefore, the facile activation of molecular oxygen by the electron-abundant alkali-metal adatoms and active lattice oxygen are responsible for the high catalytic activity in complete oxidation of HCHO. This work could assist the design of efficient and cheap catalysts by tuning the electronic states of active components. PMID- 29030886 TI - Genetics of acute rejection after kidney transplantation. AB - Treatment of acute rejection (AR) following kidney transplantation has improved in recent years, but there are still limitations to successful outcomes. This review article covers literature in regard to recipient and donor genetics of AR kidney and secondarily of liver allografts. Many candidate gene and some genome wide association studies (GWASs) have been conducted for AR in kidney transplantation. Genetic associations with AR in kidney and liver are mostly weak, and in most cases, the associations have not been reproducible. A limitation in the study of AR is the lack of sufficiently large populations that account for population stratification to study the AR phenotype which in this era occurs in <10% of transplants. Furthermore, the AR phenotype has been difficult to define and the definitions of classifications have evolved over time. Literature related to the pharmacogenomics of tacrolimus is robust and has been validated in many studies. Associations between gene expression and AR are emerging as markers of outcomes and AR classification. In the future, combinations of pretransplant genotype for AR risk prediction, genotype-based immune suppressant dosing, and pharmacogenomic markers to select AR maintenance or treatment and expression markers from biopsies may provide valuable clinical tools for guiding treatment. PMID- 29030890 TI - Influences of different dietary contents of macrominerals on the availability of trace elements in horses. AB - In this study, influences of a reduced macromineral intake on the trace element metabolism in horses at maintenance were investigated. Background of this study is the revised recommendation on the macromineral supply for horses (GfE ). Balance studies on three adult pony geldings with body weights of 405 / 348 / 384 kg were performed to obtain data on apparent digestibility (aD), retention and serum concentrations of different trace elements (Cu, Zn, Se) at different dietary macromineral levels. A mineral supplement or a complementary feed-with a reduced macromineral content-was added to a hay-based diet (daily 5.5 kg hay per animal, split in three servings a day), beside distilled water was offered. The diets were offered one after the other in a way that all ponies had the same sequence of treatments. The native macromineral contents of the daily offered amount of hay already surpassed the new recommendations whereas dietary trace elements needed to be supplemented. There were no statistically significant differences (p <= .05) concerning the aD of copper, zinc and selenium comparing the diets with and without macromineral supplementation. Serum levels of these three trace elements were not affected by the different macromineral content of the diet. Results of this study, based on a 22-day feeding period for each treatment, indicate that a macromineral supplementation of a hay-based diet for adult horses at maintenance was not necessary. However, no negative effects of added macrominerals on the trace element metabolism occurred in this study. PMID- 29030891 TI - Seasonal below-ground metabolism in switchgrass. AB - Switchgrass (Panicum virgatum), a perennial, polyploid, C4 warm-season grass is among the foremost herbaceous species being advanced as a source of biomass for biofuel end uses. At the end of every growing season, the aerial tissues senesce, and the below-ground rhizomes become dormant. Future growth is dependent on the successful over-wintering of the rhizomes. Although the importance of rhizome health to overall year-upon-year plant productivity has been long recognized, there is limited information on seasonal changes occurring during dormancy at both the transcriptome and metabolite levels. Here, global changes in transcriptomes and metabolites were investigated over two growing seasons in rhizomes harvested from field-grown plants. The objectives were: (a) synthesize information on cellular processes that lead to dormancy; and (b) provide models that could account for major metabolic pathways present in dormant switchgrass rhizomes. Overall, metabolism during dormancy appeared to involve discrete but interrelated events. One was a response to abscisic acid that resulted in dehydration, increases in osmolytes and upregulation of autophagic processes, likely through the target of rapamycin complex and sucrose non-fermentative related kinase-based signaling cascades. Another was a recalibration of energy transduction through apparent reductions in mitochondrial oxidative phosphorylation, increases in substrate level generation of ATP and reducing equivalents, and recycling of N and possibly CO2 through refixation. Lastly, transcript abundances indicated that cold-related signaling was also occurring. Altogether, these data provide a detailed overview of rhizome metabolism, especially during dormancy, which can be exploited in the future to improve winter survival in switchgrass. PMID- 29030892 TI - Radical Behavior of CO2 versus its Deoxygenation Promoted by Vanadium Aryloxide Complexes: How the Geometry of Intermediate CO2 -Adducts Determines the Reactivity. AB - The reactivity of carbon dioxide with vanadium(III) aryloxo complexes has been investigated. The formation of either carbon monoxide or incorporation into the ligand system with the ultimate formation of organic ester was observed depending on the overall electron donor ability of the ligand field. DFT calculations were carried out to investigate the proposed mechanism for carbon dioxide coordination and reduction. PMID- 29030895 TI - Antagonistic pleiotropy can maintain fitness variation in annual plants. AB - Antagonistic pleiotropy (AP) is a genetic trade-off between different fitness components. In annual plants, a trade-off between days to flower (DTF) and reproductive capacity often determines how many individuals survive to flower in a short growing season, and also influences the seed set of survivors. We develop a model of viability and fecundity selection informed by many experiments on the yellow monkeyflower, Mimulus guttatus, but applicable to many annual species. A viability/fecundity trade-off maintains stable polymorphism under surprisingly general conditions. We also introduce both spatial heterogeneity and temporal stochasticity in environmental parameters. Neither is necessary for polymorphism, but spatial heterogeneity allows polymorphism while also generating the often observed non-negative correlations in fitness components. PMID- 29030893 TI - Sonic hedgehog antagonists reduce size and alter patterning of the frog inner ear. AB - Sonic hedgehog (Shh) signaling plays a major role in vertebrate development, from regulation of proliferation to the patterning of various organs. In amniotes, Shh affects dorsoventral patterning in the inner ear but affects anteroposterior patterning in teleost ears. It remains unknown how altered function of Shh relates to morphogenetic changes that coincide with the evolution of limbs and novel auditory organs in the ear. In this study, we used the tetrapod, Xenopus laevis, to test how increasing concentrations of the Shh signal pathway antagonist, Vismodegib, affects ear development. Vismodegib treatment dose dependently alters the development of the ear, hypaxial muscle, and indirectly the Mauthner cell through its interaction with the inner ear afferents. Together, these phenotypes have an effect on escape response. The altered Mauthner cell likely contributes to the increased time to respond to a stimulus. In addition, the increased hypaxial muscle in the trunk likely contributes to the subtle change in animal C-start flexion angle. In the ear, Vismodegib treatment results in decreasing segregation between the gravistatic sensory epithelia as the concentration of Vismodegib increases. Furthermore, at higher doses, there is a loss of the horizontal canal but no enantiomorphic transformation, as in bony fish lacking Shh. Like in amniotes, Shh signaling in frogs affects dorsoventral patterning in the ear, suggesting that auditory sensory evolution in sarcopterygians/tetrapods evolved with a shift of Shh function in axis specification. (c) 2017 Wiley Periodicals, Inc. Develop Neurobiol 77: 1385-1400, 2017. PMID- 29030896 TI - How good are the current guidelines on endometriosis? PMID- 29030894 TI - Pooled efficacy and safety of eslicarbazepine acetate as add-on treatment in patients with focal-onset seizures: Data from four double-blind placebo controlled pivotal phase III clinical studies. AB - PURPOSE: Pooled evaluation of the key efficacy and safety profile of eslicarbazepine acetate (ESL) added-on to stable antiepileptic therapy in adults with focal-onset seizures. METHODS: Data from 1703 patients enrolled in four phase III double-blind, randomized, placebo-controlled studies were pooled and analyzed. Following a 2 week titration period, ESL was administered at 400 mg, 800 mg, and 1200 mg once-daily doses for 12 weeks (maintenance period). Pooled efficacy variable was standardized (/4 weeks) seizure frequency (SSF) analyzed over the maintenance period as reduction in absolute and relative SSF and proportion of responders (>=50% reduction in SSF). Pooled safety was analyzed by means of adverse events and clinical laboratory assessments. RESULTS: SSF was significantly reduced with ESL 800 mg (P < 0.0001) and 1200 mg (P < 0.0001) compared to placebo. Median relative reduction in SSF was 33.4% for ESL 800 mg and 37.8% for 1200 mg (placebo: 17.6%), and responder rate was 33.8% and 43.1% (placebo: 22.2%). ESL was more efficacious than placebo regardless of gender, geographical region, epilepsy duration, age at time of diagnosis, seizure type, and type of concomitant antiepileptic drugs (AED). Incidence of adverse events (AEs) and AEs leading to discontinuation was dose dependent. Most common AEs (>10% patients) were dizziness, somnolence, and nausea. The incidence of treatment-emergent AEs (dizziness, somnolence, ataxia, vomiting, and nausea) was lower in patients who began taking ESL 400 mg (followed by 400 mg increments to 800 or 1200 mg) than in those who began taking ESL 600 mg or 800 mg. CONCLUSIONS: Once-daily ESL 800 mg and 1200 mg showed consistent results across all efficacy and safety endpoints, independent of study population characteristics and type of concomitant AEDs. Treatment initiated with ESL 400 mg followed by 400 mg increments to 800 or 1200 mg provides optimal balance of efficacy and tolerability. PMID- 29030897 TI - Stillbirth prevention: the challenges of public campaigns. PMID- 29030898 TI - Surgical innovation for obstetric fistula patients. PMID- 29030899 TI - Responses of the soil fungal communities to the co-invasion of two invasive species with different cover classes. AB - Soil fungal communities play an important role in the successful invasion of non native species. It is common for two or more invasive plant species to co-occur in invaded ecosystems. This study aimed to determine the effects of co-invasion of two invasive species (Erigeron annuus and Solidago canadensis) with different cover classes on soil fungal communities using high-throughput sequencing. Invasion of E. annuus and/or S. canadensis had positive effects on the sequence number, operational taxonomic unit (OTU) richness, Shannon diversity, abundance based cover estimator (ACE index) and Chao1 index of soil fungal communities, but negative effects on the Simpson index. Thus, invasion of E. annuus and/or S. canadensis could increase diversity and richness of soil fungal communities but decrease dominance of some members of these communities, in part to facilitate plant further invasion, because high soil microbial diversity could increase soil functions and plant nutrient acquisition. Some soil fungal species grow well, whereas others tend to extinction after non-native plant invasion with increasing invasion degree and presumably time. The sequence number, OTU richness, Shannon diversity, ACE index and Chao1 index of soil fungal communities were higher under co-invasion of E. annuus and S. canadensis than under independent invasion of either individual species. The co-invasion of the two invasive species had a positive synergistic effect on diversity and abundance of soil fungal communities, partly to build a soil microenvironment to enhance competitiveness of the invaders. The changed diversity and community under co-invasion could modify resource availability and niche differentiation within the soil fungal communities, mediated by differences in leaf litter quality and quantity, which can support different fungal/microbial species in the soil. PMID- 29030900 TI - Computational flow cytometry analysis reveals a unique immune signature of the human maternal-fetal interface. AB - PROBLEM: Decidual immune dysregulation is thought to underlie major pregnancy disorders; however, incomplete understanding of the decidual immune interface has hampered the mechanistic investigation. METHOD OF STUDY: Human term decidua was collected, and single-cell phenotypic information was acquired by highly polychromatic flow cytometry. Cellular identity analysis was performed with t distributed stochastic neighbor embedding, DensVM clustering, and matched to CellOntology database. RESULTS: Traditional analytical methods validated known cellular T and dendritic cell subsets in human term decidua. Computational analysis revealed a complex and tissue-specific decidual immune signature in both the innate and adaptive immune compartments. CONCLUSION: Polychromatic flow cytometry with a streamlined computational analysis pipeline is a feasible approach to comprehensive immunome mapping of human term decidua. As an unbiased, standardized method of investigation, computational flow cytometry promises to unravel the immune pathology of pregnancy disorders. PMID- 29030902 TI - The prognostic significance of early and late right precordial lead (V4 R) ST segment elevation in patients with acute anterior myocardial infarction. AB - BACKGROUND: The predictive significance of ST-segment elevation (STE) in lead V4 R in patients with anterior ST-segment elevation myocardial infarction (STEMI) has not been well-understood. In this study, we evaluated the prognostic value of early and late STE in lead V4 R in patients with anterior STEMI. METHODS: A total 451 patients with anterior STEMI who treated with primary percutaneous coronary intervention (PPCI) were prospectively enrolled in this study. All patients were classified according to presence of STE (>1 mm) in lead V4 R at admission and/or 60 min after PPCI. Based on this classification, all patients were divided into three subgroups as no V4 R STE (Group 1), early but not late V4 R STE (Group 2) and late V4 R STE (Group 3). RESULTS: In-hospital mortality had higher rates at group 2 and 3 and that had 2.1 and 4.1-times higher mortality than group 1. Late V4 R STE remained as an independent risk factor for cardiogenic shock (odds ratio [OR] 2.6; 95% confidence interval [CI] 1.9-4.3; p < .001) and in-hospital mortality (OR 2.3; 95% CI 1.8-4.1; p < .001). The 12-month overall survival for group 1, 2, and 3 were 91.1%, 82.4%, and 71.4% respectively. However, the long term mortality also had the higher rate at group 3; late V4 R STE did not remain as an independent risk factor for long-term mortality (OR 1.5; 95% CI 0.8-4.1; p: .159). CONCLUSION: Late V4 R STE in patients with anterior STEMI is strongly associated with poor prognosis. The record of late V4 R in patients with anterior STEMI has an important prognostic value. PMID- 29030901 TI - Disrupted integration of exteroceptive and interoceptive signaling in autism spectrum disorder. AB - : In addition to deficits in social communication, individuals diagnosed with Autism Spectrum Disorder (ASD) frequently exhibit changes in sensory and multisensory function. Recent evidence has focused on changes in audiovisual temporal processing, and has sought to relate these sensory-based changes to weaknesses in social communication. These changes in audiovisual temporal function manifest as differences in the temporal epoch or "window" within which paired auditory and visual stimuli are integrated or bound, with those with ASD exhibiting expanded audiovisual temporal binding windows (TBWs). However, it is unknown whether this impairment is unique to audiovisual pairings, perhaps because of their relevance for speech processing, or whether it generalizes across pairings in different sensory modalities. In addition to the exteroceptive senses, there has been growing interest in ASD research in interoception (e.g., the monitoring of respiration, heartbeat, hunger, etc.), as these internally directed sensory processes appear to be altered as well in autism. In the current study, we sought to examine both exteroception and interoception in individuals with ASD and a group of typically developing (TD) matched controls, with an emphasis on temporal perception of audiovisual (exteroceptive) and cardiovisual (interoceptive to exteroceptive) cues. Results replicate prior findings showing expanded audiovisual TBWs in ASD in comparison to TD. In addition, strikingly, cardiovisual TBWs were fourfold larger in ASD than in TD, suggesting a putative complete lack of cardiovisual temporal acuity in ASD individuals. Results are discussed in light of recent evidence indicating a reduced tendency to rely on sensory priors in ASD. Autism Res 2018, 11: 194-205. (c) 2017 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Studies have shown that individuals with autism have difficulty in separating auditory and visual events in time. People with autism also weight sensory evidence originating from the external world and from their body differently. We measured simultaneity judgments regarding visual and auditory events and between visual and heartbeat events. Results suggest that while individuals with autism show unusual temporal function across the senses in a general manner, this deficit is greater when pairings bridged between the external world and the internal body. PMID- 29030903 TI - Increased water-use efficiency translates into contrasting growth patterns of Scots pine and sessile oak at their southern distribution limits. AB - In forests, the increase in atmospheric CO2 concentrations (Ca ) has been related to enhanced tree growth and intrinsic water-use efficiency (iWUE). However, in drought-prone areas such as the Mediterranean Basin, it is not yet clear to what extent this "fertilizing" effect may compensate for drought-induced growth reduction. We investigated tree growth and physiological responses at five Scots pine (Pinus sylvestris L.) and five sessile oak (Quercus petraea (Matt.) Liebl.) sites located at their southernmost distribution limits in Europe for the period 1960-2012 using annually resolved tree-ring width and delta13 C data to track ecophysiological processes. Results indicated that all 10 natural stands significantly increased their leaf intercellular CO2 concentration (Ci ), and consequently iWUE. Different trends in the theoretical gas-exchange scenarios as a response to increasing Ca were found: generally, Ci tended to increase proportionally to Ca , except for trees at the driest sites in which Ci remained constant. Ci from the oak sites displaying higher water availability tended to increase at a comparable rate to Ca . Multiple linear models fitted at site level to predict basal area increment (BAI) using iWUE and climatic variables better explained tree growth in pines (31.9%-71.4%) than in oak stands (15.8%-46.8%). iWUE was negatively linked to pine growth, whereas its effect on growth of oak differed across sites. Tree growth in the western and central oak stands was negatively related to iWUE, whereas BAI from the easternmost stand was positively associated with iWUE. Thus, some Q. petraea stands might have partially benefited from the "fertilizing" effect of rising Ca , whereas P. sylvestris stands due to their strict closure of stomata did not profit from increased iWUE and consequently showed in general growth reductions across sites. Additionally, the inter-annual variability of BAI and iWUE displayed a geographical polarity in the Mediterranean. PMID- 29030905 TI - Comparing the effects of age, pubertal development, and symptom profile on cortisol rhythm in children and adolescents with autism spectrum disorder. AB - : Previous studies in children with autism spectrum disorder (ASD) have shown elevated evening cortisol; however, few studies have examined diurnal rhythm in adolescents with ASD. Adolescence is a time of significant physical and psychological change, and dysregulation of the hypothalamic-pituitary-adrenal axis may put adolescents with ASD at increased risk for internalizing disorders, such as anxiety and depression. The extent to which cortisol levels are associated with age, puberty and symptom profile was examined in 113 youth (ages 7-17) with ASD and typical development. Salivary samples were collected over 3 days in the home, 4 times per day (waking, 30-min post-waking, afternoon, evening). Results showed youth with ASD had higher evening cortisol and a blunted diurnal slope relative to TD youth. Pubertal development and age were significant predictors of evening cortisol, and adolescents with ASD had higher evening cortisol levels compared to children with ASD. The study extends previous reports of elevated evening cortisol in children with ASD to reveal high levels in adolescence as well. Adolescents with ASD also show a significantly blunted diurnal slope, which may be associated with risk of internalizing symptoms. Findings suggest elevated evening cortisol persists across development in youth with ASD, thus emphasizing a need to identify potential negative effects of excess cortisol exposure on health in ASD individuals. Autism Res 2018, 11: 110 120. (c) 2017 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Elevations in stress hormone, cortisol, during the evening may indicate increased stress from changes throughout the day in youth with autism spectrum disorder (ASD). The current study shows that age and pubertal development are also related to increases in evening cortisol, and this maladaptive elevation in cortisol in ASD is not going away with age. These cortisol elevations may also be associated with other psychological symptoms and warrant further investigation in adolescents with ASD. PMID- 29030904 TI - Development and maintenance of the brain's immune toolkit: Microglia and non parenchymal brain macrophages. AB - Microglia and non-parenchymal macrophages located in the perivascular space, the meninges and the choroid plexus are independent immune populations that play vital roles in brain development, homeostasis, and tissue healing. Resident macrophages account for a significant proportion of cells in the brain and their density remains stable throughout the lifespan thanks to constant turnover. Microglia develop from yolk sac progenitors, later evolving through intermediate progenitors in a fine-tuned process in which intrinsic factors and external stimuli combine to progressively sculpt their cell type-specific transcriptional profiles. Recent evidence demonstrates that non-parenchymal macrophages are also generated during early embryonic development. In recent years, the development of powerful fate mapping approaches combined with novel genomic and transcriptomic methodologies have greatly expanded our understanding of how brain macrophages develop and acquire specialized functions, and how cell population dynamics are regulated. Here, we review the transcription factors, epigenetic remodeling, and signaling pathways orchestrating the embryonic development of microglia and non parenchymal macrophages. Next, we describe the dynamics of the macrophage populations of the brain and discuss the role of progenitor cells, to gain a better understanding of their functions in the healthy and diseased brain. (c) 2017 Wiley Periodicals, Inc. Develop Neurobiol 78: 561-579, 2018. PMID- 29030906 TI - Effects of interruptions of external beam radiation therapy on outcomes in patients with prostate cancer. AB - INTRODUCTION: To evaluate if interruptions of external beam radiation therapy impact outcomes in men with localized prostate cancer (PCa). METHODS: We included men with localized PCa treated with three-dimensional conformal radiotherapy (3D CRT) or intensity-modulated radiation therapy (IMRT) of escalated dose (>=74 Gy in 1.8 or 2 Gy fractions) between 1992 and 2013 at an NCI-designated cancer centre. Men receiving androgen deprivation therapy were excluded. The non treatment day ratio (NTDR) was defined as the number of non-treatment days divided by the total elapsed days of therapy. NTDR was analysed for each National Comprehensive Cancer Network (NCCN) risk group. RESULTS: There were 1728 men included (839 low-risk, 776 intermediate-risk and 113 high-risk), with a median follow up of 53.5 months (range 12-185.8). The median NTDR was 31% (range 23 71%), translating to approximately 2 breaks (each break represents a missed treatment that will be made up) for 8 weeks of RT with 5 treatments per week. The 75 percentile of NTDR was 33%, translating to approximately 4 breaks, which was used as the cutoff for analysis. There were no significant differences in freedom from biochemical failure, freedom from distant metastasis, cancer specific survival, or overall survival for men with NTDR >=33% compared to NTDR<33% for each risk group. Multivariable analyses including NTDR, age, race, Gleason score, T stage, and PSA were performed using the proportional hazards regression procedure. NTDR>=33% was not significantly associated with increased hazard ratio for outcomes in each risk group compared to NTDR<33%. CONCLUSION: Unintentional treatment breaks during dose escalated external beam radiation therapy for PCa did not cause a significant difference in outcomes, although duration of follow up limits the strength of this conclusion. PMID- 29030907 TI - Macromolecular rate theory (MMRT) provides a thermodynamics rationale to underpin the convergent temperature response in plant leaf respiration. AB - Temperature is a crucial factor in determining the rates of ecosystem processes, for example, leaf respiration (R) - the flux of plant respired CO2 from leaves to the atmosphere. Generally, R increases exponentially with temperature and formulations such as the Arrhenius equation are widely used in earth system models. However, experimental observations have shown a consequential and consistent departure from an exponential increase in R. What are the principles that underlie these observed patterns? Here, we demonstrate that macromolecular rate theory (MMRT), based on transition state theory (TST) for enzyme-catalyzed kinetics, provides a thermodynamic explanation for the observed departure and the convergent temperature response of R using a global database. Three meaningful parameters emerge from MMRT analysis: the temperature at which the rate of respiration would theoretically reach a maximum (the optimum temperature, Topt ), the temperature at which the respiration rate is most sensitive to changes in temperature (the inflection temperature, Tinf ) and the overall curvature of the log(rate) versus temperature plot (the change in heat capacity for the system, DeltaCP?). On average, the highest potential enzyme-catalyzed rates of respiratory enzymes for R are predicted to occur at 67.0 +/- 1.2 degrees C and the maximum temperature sensitivity at 41.4 +/- 0.7 degrees C from MMRT. The average curvature (average negative DeltaCP?) was -1.2 +/- 0.1 kJ mol-1 K-1 . Interestingly, Topt , Tinf and DeltaCP? appear insignificantly different across biomes and plant functional types, suggesting that thermal response of respiratory enzymes in leaves could be conserved. The derived parameters from MMRT can serve as thermal traits for plant leaves that represent the collective temperature response of metabolic respiratory enzymes and could be useful to understand regulations of R under a warmer climate. MMRT extends the classic TST to enzyme-catalyzed reactions and provides an accurate and mechanistic model for the short-term temperature response of R around the globe. PMID- 29030908 TI - Epidemiology of infertility in China: a population-based study. AB - OBJECTIVE: To assess the current prevalence of and risk factors for infertility among couples of reproductive age in China. DESIGN: Population-based cross sectional study. SETTING: We approached 25 270 couples in eight provinces/municipalities, of whom 18 571 (response rate 74%) were interviewed. POPULATION: Couples living together and married for more than 1 year, of whom the female spouse was 20-49 years old. METHODS: Women were approached via telephone and face-to-face conversation to complete the standardised and structured questionnaire by trained interviewers. MAIN OUTCOME MEASURES: Prevalence of and risk factors for infertility. RESULTS: Among women 'at risk' of pregnancy, the prevalence of infertility was 15.5% (2680/17 275). Among 10 742 women attempting to become pregnant, the prevalence of infertility was 25.0% (2680/10 742), which increased with age in the second population. Among women who failed to achieve pregnancy in the last 12 months, 3470 finished our questionnaire about fertility care, and 55.2% (1915/3470) of them had sought medical help. Sociodemographic risk factors for infertility included lower educational level [adjusted odds ratio (aOR) 3.4, 95% CI 2.0-5.5] and employment (aOR 2.3, 95% CI 1.9-2.9). Clinical risk factors were irregular menstrual cycle (aOR 1.8, 95% CI 1.2-2.5), light menstrual blood volume (aOR 1.6, 95% CI 1.2-2.0), history of cervicitis (aOR 1.5, 95% CI 1.2-2.0) and endometriosis (aOR 3.1, 95% CI 1.1-9.3), previous stillbirth (aOR 2.1, 95% CI 1.3-3.3) and miscarriage (aOR 2.7, 95% CI 2.1-3.5). In addition, history of operation was a significant risk factor of infertility. CONCLUSIONS: Among couples of reproductive age in China, the prevalence of infertility was 25%, and almost half of the couples experiencing infertility had not sought medical help. TWEETABLE ABSTRACT: In China, 25% of couples actively attempting to become pregnant suffered infertility. PMID- 29030909 TI - Global gene expression profiles of hematopoietic stem and progenitor cells from patients with chronic myeloid leukemia: the effect of in vitro culture with or without imatinib. AB - In this study, we determined the gene expression profiles of bone marrow-derived cell fractions, obtained from normal subjects and Chronic Myeloid Leukemia (CML) patients, that were highly enriched for hematopoietic stem (HSCs) and progenitor (HPCs) cells. Our results indicate that the profiles of CML HSCs and HPCs were closer to that of normal progenitors, whereas normal HSCs showed the most different expression profile of all. We found that the expression profiles of HSCs and HPCs from CML marrow were closer to each other than those of HSCs and HPCs from normal marrow. The major biologic processes dysregulated in CML cells included DNA repair, cell cycle, chromosome condensation, cell adhesion, and the immune response. We also determined the genomic changes in both normal and CML progenitor cells under culture conditions, and found that several genes involved in cell cycle, steroid biosynthesis, and chromosome segregation were upregulated, whereas genes involved in transcription regulation and apoptosis were downregulated. Interestingly, these changes were the same, regardless of the addition of Imatinib (IM) to the culture. Finally, we identified three genes PIEZO2, RXFP1, and MAMDC2- that are preferentially expressed by CML primitive cells and that encode for cell membrane proteins; thus, they could be used as biomarkers for CML stem cells. PMID- 29030910 TI - The role of general psychosocial factors for the use of cancer screening-Findings of a population-based observational study among older adults in Germany. AB - Within the framework of the health-belief model, some studies exist investigating the association between illness-specific psychosocial factors and the use of cancer screenings. However, studies investigating the association between general psychosocial factors and the use of cancer screenings are missing. Thus, this study aimed at examining the association between well-established general psychosocial factors and the use of cancer screenings. Data were gathered from a large, population-based sample of community-dwelling individuals aged 40 and above in Germany (n = 7673; in 2014). Loneliness, cognitive well-being, affective well-being (negative and positive affect), optimism, self-efficacy, self-esteem, self-regulation, perceived autonomy, perceived stress, and perceived social exclusion were used as general psychosocial factors. Furthermore, individuals were asked whether they regularly underwent early cancer screening in the past years (yes; no). A total of 65.6% of the individuals used cancer screening. Adjusting for sociodemographic factors, self-rated health, morbidity and lifestyle factors, multiple logistic regressions revealed that the use of cancer screening is positively associated with decreased loneliness, cognitive well being, optimism, self-efficacy, self-esteem, self-regulation, perceived autonomy, decreased perceived stress, decreased perceived social exclusion, and positive affect, while it is not associated with negative affect. This study stresses the strong association between general psychosocial factors and the use of cancer screening. This knowledge might be fruitful to address individuals at risk for underuse. PMID- 29030912 TI - The development and implementation of a performance appraisal framework for radiation therapists in planning and simulation. AB - It is a challenge for radiation therapists (RTs) to keep pace with changing planning technology and techniques while maintaining appropriate skills levels. The ability of individual RTs to meet the demands of this constantly changing practice can only be assured through establishing clearly defined standards for practice and a systematic process for providing feedback on performance. Investigation into existing models for performance appraisal produced minimal results so a radiation therapy-specific framework was developed. The goal for this initiative was to establish a framework that would reflect the complexity of practice and provide a clear measure of performance against them. This paper outlines the implementation of this framework into practice and discusses some lessons learned in the process. The framework was developed and implemented in six stages: (1) project team, (2) scope, (3) dosimetry pilot, (4) staff consultation, (5) finalisation and implementation and (6) future development and evaluation. Both cultural and organisational obstacles needed to be addressed before this framework could be successfully introduced. Even though this slowed progress, addressing these obstacles during the development process was essential to the success of this framework. The incremental approach provided the opportunity for each aspect to be tested and the development of subsequent stages to be informed by lessons learned during the previous one. This approach may be beneficial when developing and implementing projects involving performance appraisal to promote consistency, fairness and quality. PMID- 29030911 TI - Phosphorylated ERK is a potential prognostic biomarker for Sorafenib response in hepatocellular carcinoma. AB - Sorafenib, the only approved drug for hepatocellular carcinoma, acts as a remarkable inhibitor of Raf serine-threonine kinases. However, Sorafenib is expensive, and clinical experience shows that it is not an effective treatment for many patients. Previous study has demonstrated that phosphorylated ERK (pERK) is a key downstream component in the RAF/MEK/ERK signaling pathway. Here, we investigate whether pERK is a useful biomarker for treating HCC with Sorafenib. In vitro cell viability assays showed that the efficacy of Sorafenib was distinctly different according to the level of pERK. Furthermore, in established patient-derived xenografts from HCC specimens, we found that the growth rate of tumors with high levels of pERK was significantly decreased by Sorafenib treatment. Taken together, pERK is a potential biomarker for the sensitivity to Sorafenib in treating HCC. PMID- 29030913 TI - Effect of water restriction on milk yield and quality in Lacaune breed ewes. AB - The effect of water restriction on body weight, body condition score, milk yield, and milk composition and rheological characteristics in intensively reared Lacaune ewes was evaluated. After 7 days of adaptation, the trial lasted 28 days. Thirty lactating ewes (48 +/- 5 months of age; mean value +/- standard deviation) at the beginning of third lactation month were divided into three groups (n = 10), corresponding to the following water restriction treatment: a group control received no drinking water restriction (W100), and two groups received water to the extent of 80% and 60% of W100 daily consumption (W80 and W60 group respectively). The effects of water restriction were assessed at the beginning of experiment (D0), at D14 and D28. The W60 group resulted in a significant decrease in body weight, body condition score, milk yield and feed consumption of hay due to the experimental treatment; whereas a marked increase in both W60 and W80 groups of milk lactose, urea, sodium, sodium chloride content and titratable acidity was observed. Rheological parameters of milk, rennet coagulation time and curd-firming time were positively affected by water restriction treatments, with a decrease in both experimental groups of the time required for the formation of a stable and firm curd. Results highlight the importance of water consumption in dairy sheep. The scarce availability of water, significantly affecting ewes milk production, is worthy of particular attention in arid area where water stress resistant breeds should be considered. This study underlines that milk yield, being closely linked to the availability of water of the breeding habitat due to its high water content (about 81%), could be reached in area where water is not a limiting factor without reducing the genetic expression of the animals. Less severe water restrictions, such as 20% of daily voluntary water intake, produce no detrimental effect on milk yield. PMID- 29030914 TI - PufQ regulates porphyrin flux at the haem/bacteriochlorophyll branchpoint of tetrapyrrole biosynthesis via interactions with ferrochelatase. AB - Facultative phototrophs such as Rhodobacter sphaeroides can switch between heterotrophic and photosynthetic growth. This transition is governed by oxygen tension and involves the large-scale production of bacteriochlorophyll, which shares a biosynthetic pathway with haem up to protoporphyrin IX. Here, the pathways diverge with the insertion of Fe2+ or Mg2+ into protoporphyrin by ferrochelatase or magnesium chelatase, respectively. Tight regulation of this branchpoint is essential, but the mechanisms for switching between respiratory and photosynthetic growth are poorly understood. We show that PufQ governs the haem/bacteriochlorophyll switch; pufQ is found within the oxygen-regulated pufQBALMX operon encoding the reaction centre-light-harvesting photosystem complex. A pufQ deletion strain synthesises low levels of bacteriochlorophyll and accumulates the biosynthetic precursor coproporphyrinogen III; a suppressor mutant of this strain harbours a mutation in the hemH gene encoding ferrochelatase, substantially reducing ferrochelatase activity and increasing cellular bacteriochlorophyll levels. FLAG-immunoprecipitation experiments retrieve a ferrochelatase-PufQ-carotenoid complex, proposed to regulate the haem/bacteriochlorophyll branchpoint by directing porphyrin flux toward bacteriochlorophyll production under oxygen-limiting conditions. The co-location of pufQ and the photosystem genes in the same operon ensures that switching of tetrapyrrole metabolism toward bacteriochlorophyll is coordinated with the production of reaction centre and light-harvesting polypeptides. PMID- 29030917 TI - Discovery of new QTLs underlying hybrid fertility and reproductive isolation in rice. PMID- 29030915 TI - Political transition and emergent forest-conservation issues in Myanmar. AB - Political and economic transitions have had substantial impacts on forest conservation. Where transitions are underway or anticipated, historical precedent and methods for systematically assessing future trends should be used to anticipate likely threats to forest conservation and design appropriate and prescient policy measures to counteract them. Myanmar is transitioning from an authoritarian, centralized state with a highly regulated economy to a more decentralized and economically liberal democracy and is working to end a long running civil war. With these transitions in mind, we used a horizon-scanning approach to assess the 40 emerging issues most affecting Myanmar's forests, including internal conflict, land-tenure insecurity, large-scale agricultural development, demise of state timber enterprises, shortfalls in government revenue and capacity, and opening of new deforestation frontiers with new roads, mines, and hydroelectric dams. Averting these threats will require, for example, overhauling governance models, building capacity, improving infrastructure- and energy-project planning, and reforming land-tenure and environmental-protection laws. Although challenges to conservation in Myanmar are daunting, the political transition offers an opportunity for conservationists and researchers to help shape a future that enhances Myanmar's social, economic, and environmental potential while learning and applying lessons from other countries. Our approach and results are relevant to other countries undergoing similar transitions. PMID- 29030918 TI - Simple technique for management of anterior chamber-migrated Ozurdex(r) implant. PMID- 29030916 TI - Identification and characterization of a metastatic suppressor BRMS1L as a target gene of p53. AB - The tumor suppressor p53 and its family members, p63 and p73, play a pivotal role in the cell fate determination in response to diverse upstream signals. As transcription factors, p53 family proteins regulate a number of genes that are involved in cell cycle arrest, apoptosis, senescence, and maintenance of genomic stability. Recent studies revealed that p53 family proteins are important for the regulation of cell invasion and migration. Microarray analysis showed that breast cancer metastasis suppressor 1-like (BRMS1L) is upregulated by p53 family proteins, specifically p53, TAp63gamma, and TAp73beta. We identified two responsive elements of p53 family proteins in the first intron and upstream of BRMS1L. These response elements are well conserved among mammals. Functional analysis showed that ectopic expression of BRMS1L inhibited cancer cell invasion and migration; knockdown of BRMS1L by siRNA induced the opposite effect. Importantly, clinical databases revealed that reduced BRMS1L expression correlated with poor prognosis in patients with breast and brain cancer. Together, these results strongly indicate that BRMS1L is one of the mediators downstream of the p53 pathway, and that it inhibits cancer cell invasion and migration, which are essential steps in cancer metastasis. Collectively, our results indicate that BRMS1L is involved in cancer cell invasion and migration, and could be a therapeutic target for cancer. PMID- 29030920 TI - Identification of sesame (Sesamum indicum L.) chromosomes using the BAC-FISH system. AB - Sesame (Sesamum indicum L.; Pedaliaceae) is a commercially valuable oilseed crop with high oil content. Its small genome size favours the genomic analysis of key biological processes, such as oil synthesis and metabolism. However, the 13 chromosome pairs of sesame have not been characterised because of technological limitations and their small size. We constructed a BAC library comprising 57,600 BAC clones for sesame. The estimated genome coverage of the sesame BAC library was 13.8*. The successive double colour fluorescence in situ hybridisation (FISH) with bacterial artificial chromosomes (BACs) for sesame was established in this study. Subsequently, the 13 sesame chromosome pairs were individually differentiated using 17 specific BACs for the first time. The schematic of the sesame chromosome set was drawn according to the chromosome relative length and relative position of the BAC signal. The cytogenetic characteristics of sesame chromosomes were also explored. The results provide the technical background required for further cytogenetic map construction, genome assembly and localisation of the DNA sequence in sesame. PMID- 29030919 TI - Baseline fragmented QRS increases the risk of major arrhythmic events in Brugada syndrome: Systematic review and meta-analysis. AB - BACKGROUND: Fragmented QRS reflects disturbances in the myocardium predisposing the heart to ventricular tachyarrhythmias. Recent studies suggest that fragmented QRS (fQRS) is associated with major arrhythmic events in Brugada syndrome. However, a systematic review and meta-analysis of the literature has not been done. We assessed the association between fQRS and major arrhythmic events in Brugada syndrome by a systematic review of the literature and a meta-analysis. METHODS: We comprehensively searched the databases of MEDLINE and EMBASE from inception to May 2017. Included studies were published prospective or retrospective cohort studies that compared major arrhythmic events (ventricular fibrillation, sustained ventricular tachycardia, sudden cardiac arrest, or sudden cardiac death) in Brugada syndrome with fQRS versus normal QRS. Data from each study were combined using the random-effects, generic inverse variance method of DerSimonian and Laird to calculate risk ratios and 95% confidence intervals. RESULTS: Nine studies from January 2012 to May 2017 were included in this meta analysis involving 2,360 subjects with Brugada syndrome (550 fQRS and 1,810 non fQRS). Fragmented QRS was associated with major arrhythmic events (pooled risk ratio =3.36, 95% confidence interval: 2.09-5.38, p < .001, I2 = 50.9%) as well as fatal arrhythmia (pooled risk ratio =3.09, 95% confidence interval: 1.40-6.86, p = .005, I2 = 69.7%). CONCLUSIONS: Baseline fQRS increased major arrhythmic events up to 3-fold. Our study suggests that fQRS could be an important tool for risk assessment in patients with Brugada syndrome. PMID- 29030921 TI - Development of short-range white matter in healthy children and adolescents. AB - Neural communication is facilitated by intricate networks of white matter (WM) comprised of both long and short range connections. The maturation of long range WM connections has been extensively characterized, with projection, commissural, and association tracts showing unique trajectories with age. There, however, remains a limited understanding of age-related changes occurring within short range WM connections, or U-fibers. These connections are important for local connectivity within lobes and facilitate regional cortical function and greater network economy. Recent studies have explored the maturation of U-fibers primarily using cross-sectional study designs. Here, we analyzed diffusion tensor imaging (DTI) data for healthy children and adolescents in both a cross-sectional (n = 78; mean age = 13.04 +/- 3.27 years) and a primarily longitudinal (n = 26; mean age = 10.78 +/- 2.69 years) cohort. We found significant age-related differences in fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD) and radial diffusivity (RD) across the frontal, parietal, and temporal lobes of participants within the cross-sectional cohort. By contrast, we report significant age-related differences in only FA for participants within the longitudinal cohort. Specifically, larger FA values were observed with age in frontal, parietal, and temporal lobes of the left hemisphere. Our results extend previous findings restricted to long range WM to demonstrate regional changes in the microstructure of short range WM during childhood and adolescence. These changes possibly reflect continued myelination and axonal organization of short range WM with increasing age in more anterior regions of the left hemisphere. Hum Brain Mapp 39:204-217, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29030923 TI - Does cardiac resynchronization therapy restore peripheral circulatory homeostasis? AB - AIMS: To evaluate whether peripheral circulatory 'remodelling' as measured by changes in vascular compliance and in markers of nitric oxide signalling contributes to patient response to cardiac resynchronization therapy (CRT). METHODS AND RESULTS: Effects of CRT were evaluated in 33 patients pre-procedure and 6 months post-procedure. Peak oxygen consumption, 6 min walk distance, New York Heart Association class, and quality of life score were evaluated. Augmentation index and its interactions with nitric oxide (NO) were evaluated by applanation tonometry. Platelet NO responsiveness and content of thioredoxin interacting protein were assessed. Plasma concentrations of N-terminal proBNP, asymmetric and symmetric dimethylarginine (SDMA), high sensitivity C-reactive protein, catecholamines, and matrix metalloproteinases-2 and -9 were assessed. Despite significant improvement in 6 min walk distance (P = 0.005), New York Heart Association class (P < 0.001), quality of life (P = 0.001), and all echocardiographic parameters post-CRT, there were no significant changes in augmentation index measurements, thioredoxin-interacting protein content, and platelet NO response. Significant falls in N-terminal proBNP (P = 0.008) and SDMA (P = 0.013; independent of renal function) occurred. Falls in SDMA predicted reduction in high-sensitivity C-reactive protein (P = 0.04) and increases in peak oxygen consumption (P = 0.04). There were no correlations between changes in echocardiographic parameters and those in vascular function. CONCLUSIONS: These data suggest that the beneficial effects of CRT over 6 months are independent of any change in peripheral NO-related signalling. However, there is evidence that suppression of inflammation occurs, and its magnitude predicts extent of clinical improvement. PMID- 29030922 TI - The role of mitochondria in axon development and regeneration. AB - Mitochondria are dynamic organelles that undergo transport, fission, and fusion. The three main functions of mitochondria are to generate ATP, buffer cytosolic calcium, and generate reactive oxygen species. A large body of evidence indicates that mitochondria are either primary targets for neurological disease states and nervous system injury, or are major contributors to the ensuing pathologies. However, the roles of mitochondria in the development and regeneration of axons have just begun to be elucidated. Advances in the understanding of the functional roles of mitochondria in neurons had been largely impeded by insufficient knowledge regarding the molecular mechanisms that regulate mitochondrial transport, stalling, fission/fusion, and a paucity of approaches to image and analyze mitochondria in living axons at the level of the single mitochondrion. However, technical advances in the imaging and analysis of mitochondria in living neurons and significant insights into the mechanisms that regulate mitochondrial dynamics have allowed the field to advance. Mitochondria have now been attributed important roles in the mechanism of axon extension, regeneration, and axon branching. The availability of new experimental tools is expected to rapidly increase our understanding of the functions of axonal mitochondria during both development and later regenerative attempts. (c) 2017 Wiley Periodicals, Inc. Develop Neurobiol 78: 221-237, 2018. PMID- 29030924 TI - Longitudinal shortening of sub-epicardial myocytes in severe ischaemic cardiomyopathy: insights from gadolinium contrast cardiac magnetic resonance imaging. AB - We present two patients with three-vessel disease and severely depressed left ventricular (LV) systolic function where viability analysis by cardiac magnetic resonance imaging demonstrated areas of near-transmural sub-endocardial fibrosis and hence little chance of regaining systolic function as judged by conventional analysis from radial function. Despite the pessimistic cardiac magnetic resonance imaging analysis, however, the patients underwent full revascularization and regained impressive increases in LV systolic function mainly based on improved longitudinal systolic segment function. The cases highlight that sub-epicardial, longitudinally oriented myocytes can contribute to overall LV systolic function and suggest taking their 'piston-function' into consideration when analysing viability. PMID- 29030925 TI - Pediatric estimating endotracheal tube "4-3-2-1": A mnemonic for an age-based endotracheal tube selection. PMID- 29030926 TI - Sternal malformations and anesthetic management. AB - Shamberger and Welch classify sternal malformations into four types: thoracic ectopia cordis, cervical ectopia cordis, thoraco-abdominal ectopia cordis, and cleft sternum. Cleft sternum is the most common subset, with a reported incidence of 1 in 50,000 to 100,000 live births, representing 0.15% of all anterior chest wall malformations. Acostello et al further classify cleft sternum into complete or partial (superior, medium, inferior) with a simple superior partial cleft sternum being by far the most common with an orthotopic heart, intact pericardium, and normal skin coverage. Associated anomalies with superior partial cleft sternum are rare, but can include cervicofacial hemangiomas, midline raphe from the tip of the cleft to the umbilicus, and PHACES (posterior fossa malformations, facial hemangiomas, arterial anomalies with coarctation of aorta, cardiac defects, eye abnormalities, sternal cleft, and supraumbilical raphe) syndrome. The more rare inferior partial clefts are associated with thoraco abdominal ectopia cordis as part of the Pentalogy of Cantrell (omphalocele, anterior diaphragmatic hernia, sternal cleft, ectopia cordis, ventricular septal defect/left ventricular diverticulum). This review summarizes the current knowledge of all four types of sternal malformations, and provides guidance for optimal anesthetic and perioperative care of these children. PMID- 29030927 TI - Suitability of the forearm for non-invasive blood pressure measurement in children. AB - BACKGROUND: Measurement of forearm blood pressure (BP) in pediatric patients during general anesthesia is periodically employed despite a lack of evidence for this practice. Upper arm BP measurement may be impossible to perform for either patient or surgical reasons, and the forearm has theoretical benefits over the lower leg when an alternate site is required. We hypothesize that forearm BP measurement provides an accurate and reliable alternative to the upper arm. Published adult data do not support this hypothesis, and the little pediatric data published contain methodological shortcomings. METHODS: A dedicated, externally calibrated noninvasive oscillometer was used to compare BP measurements in the upper arm and ipsilateral forearm of pediatric patients undergoing general anesthesia prior to application of a surgical stimulus. Both upper arm BP and ipsilateral forearm BP were sequentially measured 20 seconds apart on 3 separate occasions with an appropriately sized cuff. The systolic, diastolic, and mean blood pressures were recorded under steady-state conditions. RESULTS: Thirty-five elective surgical patients aged 1 to 10 years were studied. The bias (+/-limits of agreement) for forearm minus upper arm blood pressures were as follows: mean BP -1.3 mm Hg (+/-7.2), diastolic BP -3.3 (+/-5.3), and systolic BP +3.2 mm Hg (+/-8.3). Differences greater than +/-5 mm Hg occurred in 59% (systolic BP), 42% (diastolic BP), and 46% (mean BP) of all observations and greater than +/-10 mm Hg in 17% (systolic BP), 8.6% (diastolic BP), and 15% (mean BP). CONCLUSION: The differences within mean +/-1.96 standard deviations reside considerably outside the clinically accepted tolerance of +/-5 mm Hg. Thus, the forearm may not be used interchangeably with upper limb BP readings in anesthetized healthy children. Future use of the forearm for BP measurement requires a validated anthropomorphically appropriate forearm cuff. PMID- 29030928 TI - Pharmacokinetics of S-ketamine during prolonged sedation at the pediatric intensive care unit. AB - BACKGROUND: S-ketamine is the S(+)-enantiomer of the racemic mixture ketamine, an anesthetic drug providing both sedation and analgesia. In clinical practice, significant interpatient variability in drug effect of S-ketamine is observed during long-term sedation. AIMS: The aim of this study was to evaluate the pharmacokinetic variability of S-ketamine in children aged 0-18 years during long term sedation. Twenty-five children (median age: 0.42 years, range: 0.02-12.5) received continuous intravenous administrations of 0.3-3.6 mg/kg/h S-ketamine for sedation during mechanical ventilation. Infusion rates were adjusted to the desired level of sedation and analgesia based on the COMFORT-B score and Visual Analog Scale. Blood samples were drawn once daily at random time-points, and at 1 and 4 hours after discontinuation of S-ketamine infusion. Time profiles of plasma concentrations of S-ketamine and active metabolite S-norketamine were analyzed using nonlinear mixed-effects modeling software. Clearance and volume of distribution were allometrically scaled using the 3/4 power model. RESULTS: A total of 86 blood samples were collected. A 2-compartment and 1-compartment model adequately described the PK of S-ketamine and S-norketamine, respectively. The typical parameter estimates for clearance and central and peripheral volumes of distribution were: CLS-KETAMINE =112 L/h/70 kg, V1S-KETAMINE =7.7 L/70 kg, V2S KETAMINE =545L/70 kg, QS-kETAMINE =196 L/h/70 kg, and CLS-NORKETAMINE =53 L/h/70 kg. Interpatient variability of CLS-KETAMINE and CLS-NORKETAMINE was considerable with values of 40% and 104%, respectively, leading to marked variability in steady-state plasma concentrations. CONCLUSION: Substantial interpatient variability in pharmacokinetics in children complicates the development of adequate dosage regimen for continuous sedation. PMID- 29030929 TI - Infection prevention in pediatric anesthesia practice. AB - Healthcare-associated infections are an important source of morbidity and mortality in pediatric patients. Anesthesiologists have a unique role in infection prevention. Hand hygiene and anesthesia workspace decontamination decrease infection rates in surgical patients. Standard protocols exist for insertion and handling of central lines, arterial lines, and regional procedures, which should be strictly adhered to in order to prevent infectious complications. Temperature control and timely administration of antibiotics contribute to the prevention of surgical site infections. Education, culture shift, staff engagement, and effective change management are necessary for successful implementation of infection prevention strategies. PMID- 29030930 TI - Nursing initiated tracheal extubation in PACU, the risk of delegating critical anesthesiology tasks in the interest of speed. PMID- 29030931 TI - A rare case of giant tongue teratoma: Anesthetic management in low resource settings. PMID- 29030932 TI - A prospective audit of pain profiles following general and urological surgery in children. AB - BACKGROUND: Postoperative pain is frequently undertreated in children both in hospital and at home following discharge. Pain has both short- and long-term consequences for children, their families, and the healthcare system. A greater understanding of procedure-specific postoperative pain trajectories is required to improve pain management. AIM: To determine the duration and severity of acute postoperative pain experienced by children undergoing 8 different general and urological procedures (primary outcomes). Behavioral disturbance rates, nausea and vomiting scores, and parental satisfaction were also examined during the follow-up period (secondary outcomes). METHOD: Families of children (0-18 years) undergoing common general and urological procedures were invited to enroll in the study. Children's pain scores, measured using a parental proxy 0-10 numerical rating scale, were collected by telephone interview until pain was resolved. Analgesia prescribed and given, behavioral disturbance, nausea and vomiting scores, the method of medication education communication, and parental satisfaction were also measured. RESULTS: Of 360 patients recruited, 326 complete datasets were available. Patients underwent laparoscopic appendicectomy (57), open appendicectomy (19), circumcision (50), cystoscopy (52), hypospadias repair (22), inguinal hernia repair (51), orchidopexy (51), or umbilical hernia repair (24). Postoperative pain peaked on the day of or the day after surgery in all groups, and decreased over time. Pain lasted a median duration of 5 postoperative days following open appendicectomy, and 0-2 postoperative days for other procedures. Behavioral disturbance rates closely followed pain scores. Analgesia administration at home varied widely between and within groups. CONCLUSION: Pain management was inadequate in most of the groups studied, particularly after appendicectomy or umbilical hernia repair, with most children experiencing at least moderate pain on the day of and day after surgery. There was a need for a standardized management, with increased dual analgesia prescribing, to ensure that children receive adequate postoperative analgesia in hospital and at home. PMID- 29030933 TI - Technical success of the ultrasound-guided supra-inguinal fascia iliaca compartment block in older children and adolescents for hip arthroscopy. AB - BACKGROUND: Hip arthroscopic surgery is performed on older pediatric patients. Fascia iliaca compartment block has proven efficacy in providing analgesia following hip surgery and can be performed with target location of local anesthetic below or above the inguinal ligament. The reported success of ultrasound-guided infra-inguinal fascia iliaca compartment block is lower when compared to traditional landmark technique, while the reliability of supra inguinal fascia iliaca compartment block is unreported. AIM: The primary aim was to report the results in obtaining sensory changes in the distribution of the femoral and lateral femoral cutaneous nerves following supra-inguinal fascia iliaca compartment block in patients undergoing arthroscopic hip surgery. Secondary outcomes are the ability to find echogenic landmarks and to report pain scores and opioid consumption. METHODS: We reviewed the electronic medical record and regional anesthesia database of patients receiving ultrasound-guided fascia iliaca compartment block for arthroscopic hip surgery. Sensory changes to the femoral and lateral femoral cutaneous nerves were determined. Identification of echogenic landmarks was quantified. Pain scores and opioid consumption were determined. RESULTS: Seventeen patients of mean age 15.4 years old (SD 1.3; range 13-17 years) were included. Sensory changes to both the femoral and lateral femoral cutaneous nerves occurred in 94% of patients (95% CI: 82%-100%). The average volume of ropivacaine 0.2% was 0.53 mL/Kg (SD 0.11 mL/Kg). Echogenic landmarks were identified in all patients. Pain scores and opioid consumption were generally low. CONCLUSION: A supra-inguinal location for the deposition of local anesthetic when performing fascia iliaca nerve block for hip surgery is reliable in anesthetizing the femoral and lateral femoral cutaneous nerves and should encourage investigation into the clinical efficacy. PMID- 29030934 TI - There's no anesthesia like no anesthesia. PMID- 29030935 TI - Rapid Response Team activation for pediatric patients on the acute pain service. AB - INTRODUCTION: Untreated pain or overly aggressive pain management may lead to adverse physiologic consequences and activation of the hospital's Rapid Response Team. This study is a quality improvement initiative that attempts to identify patient demographics and patterns associated with Rapid Response Team consultations for patients on the acute pain service. METHODS: A retrospective review of all patients on the acute pain service from February 2011 until June 2015 was cross-referenced with inpatients requiring consultation from the Rapid Response Team. Two independent practitioners reviewed electronic medical records to determine which events were likely associated with pain management interventions. RESULTS: Over a 4-year period, 4872 patients were admitted to the acute pain service of whom 135 unique patients required Rapid Response Team consults. There were 159 unique Rapid Response Team activations among 6538 unique acute pain service consults. A subset of 27 pain management-related Rapid Response Team consultations was identified. The largest percentage of patients on the acute pain service were adolescents aged 12-17 (36%). Compared to this age group, the odds of Rapid Response Team activation were higher among infants <1 year old (odds ratio = 2.85; 95% confidence interval: 1.59, 5.10; P < .001) and adults over 18 years (odds ratio = 1.68; 95% confidence interval: 1.01, 2.80; P = .046). DISCUSSION: Identifying demographics and etiologies of acute pain service patients requiring Rapid Response Team consultations may help to identify patients at risk for clinical decompensation. PMID- 29030937 TI - Changes in blood volume indicators and dynamic indicators measured with transpulmonary ultrasound velocity during blood depletion and repletion in a neonatal swine model. AB - BACKGROUND: Dynamic indicators such as pulse pressure and stroke volume variations can be measured to track changes in preload during hemorrhage, and evaluate fluid therapy. However, these dynamic indicators require mechanical ventilation, and might be affected by cardiac dysrhythmias and changes in vascular tone. Blood volume indicators may offer alternatives for assessing changes in volume status. AIMS: The aims of this study were to measure changes in blood volume indicators and dynamic indicators during removal of blood in two stages and subsequent blood replacement in anesthetized, mechanically ventilated, neonatal pigs. METHODS: In eight anesthetized, mechanically ventilated piglets (5 6 weeks old), cardiac index, stroke volume index, total end-diastolic volume, central blood volume, active circulating volume, pulse pressure variation, and stroke volume variation were measured during blood removal in two stages (15 mL kg-1 each stage) and blood replacement (30 mL kg-1 ). Values after each intervention were measured for each parameter. RESULTS: All indicators differed from baseline after removal of 15 mL kg-1 of blood, except for stroke volume variation. Differences between both stages of hemorrhage were only observed for indexed stroke volume, total end-diastolic volume, central blood volume, and pulse pressure variation. CONCLUSION: Total end-diastolic volume and central blood volume changed during blood depletion and repletion, and differed between stages of hemorrhage. These indicators might be useful for assessing volume status instead of, or in addition to cardiac index and dynamic indicators. PMID- 29030938 TI - Opioid use disorder and misuse: A review of the epidemiology and medical implications for pediatric anesthesiologists. AB - This educational review presents an overview of opioid use disorder, misuse and overdose among adolescents, and the clinical implications for anesthesiologists. It provides definitions, discusses the epidemiology worldwide, (focusing on North America), and emphasizes the clinical implications of patients with chronic opioid exposure, including perioperative pain management, as well as opioid overdose and prolonged use of opioids after acute exposure. In the USA, opioid use disorder and negative outcomes related to opioids rose dramatically from 1999 2010; concomitantly heroin use and fatal overdoses have increased as heroin use is associated with the disordered use of licit opioids. Among adolescents and young adults, opioid use disorder is significant, with continued increases in disordered use specifically among young adults. Acute opioid intoxication may have multiple medical implications in addition to respiratory depression, and children are susceptible to acute intoxication via accidental ingestion of prescription opioids. Novel opioid formulations, such as acetyl fentanyl, with unpredictable pharmacology may also be present in acute intoxication. Chronically, opioid use presents challenges for safe and adequate pain management, in the presence of opioid-induced hyperalgesia and differential tolerance as well as mental health issues including depression and anxiety. Predictors of prolonged opioid use in adolescents and adults after surgery is an area of ongoing research. Young patients encountered by pediatric anesthesiologists may be involved in diversion and disordered use of opioids. Increased awareness among anesthesiologists is important, as perioperative discussions often provide an opportunity to detect at risk patients. PMID- 29030939 TI - Cold shocks of Anammox biofilm stimulate nitrogen removal at low temperatures. AB - The adaptation of Anammox (ANaerobic AMMonium OXidation) to low temperatures (10 15 degrees C) is crucial for sustaining energy-efficient nitrogen removal from the mainstream of municipal wastewater. But, current adaptation methods take months or even years. To speed up the adaption of Anammox to low temperatures, this study describes a new approach: exposing Anammox microorganisms to an abrupt temporary reduction of temperature, i.e., cold shock. Anammox biomass in a moving bed biofilm reactor was subjected to three consecutive cold shocks (reduction from 24 +/- 2 to 5.0 +/- 0.2 degrees C), each taking eight hours. Before the cold shocks, Anammox activity determined in ex situ tests using the temperature range of 12.5-19.5 degrees C was 0.005-0.015 kg-N kg-VSS-1 day-1 . Cold shocks increased the activity of Anammox at 10 degrees C to 0.054 kg-N kg-VSS-1 day-1 after the third shock, which is similar to the highest activities obtained for cold-enriched or adapted Anammox reported in the literature (0.080 kg-N kg-VSS-1 day-1 ). Fluorescence in situ hybridization analysis showed that Ca. Brocadia fulgida was the dominant species. Thus, cold shocks are an intriguing new strategy for the adaptation of Anammox to low temperature. (c) 2017 American Institute of Chemical Engineers Biotechnol. Prog., 34:277-281, 2018. PMID- 29030940 TI - Analysis of red blood cell parameters by Talbot-projected fringes. AB - Red blood cell (RBC) anomalies are significant symptoms for identification of health disorders and several blood diseases, which involve the modification of the parameters and biophysical characteristics of such cells. The aim of this study is to measure the three-dimensional phase information of healthy RBCs and their parameters, such as cell diameter, thickness, and hemoglobin (Hb) content, using Talbot-projected fringes. The Talbot image of linear grating is projected onto an RBC slide. The deformed grating lines due to the shape and refractive index of RBCs are recorded by a CCD camera through a 20* microscope objective. Hilbert transform is used to extract the phase image from the deformed projected grating lines. Experimentally calculated values of diameter (8.2 MUm), thickness (2.7 MUm), and Hb content (28.7 pg/cell) are well within the limits available in the literature. The proposed system is robust and user-friendly and performs the imaging of RBCs with high axial and lateral resolution (2.19 MUm). PMID- 29030941 TI - Spatiotemporal image correlation analysis of blood flow in branched vessel networks of zebrafish embryos. AB - Ramification of blood circulation is relevant in a number of physiological and pathological conditions. The oxygen exchange occurs largely in the capillary bed, and the cancer progression is closely linked to the angiogenesis around the tumor mass. Optical microscopy has made impressive improvements in in vivo imaging and dynamic studies based on correlation analysis of time stacks of images. Here, we develop and test advanced methods that allow mapping the flow fields in branched vessel networks at the resolution of 10 to 20 MUm. The methods, based on the application of spatiotemporal image correlation spectroscopy and its extension to cross-correlation analysis, are applied here to the case of early stage embryos of zebrafish. PMID- 29030942 TI - Toward jet injection by continuous-wave laser cavitation. AB - This is a study motivated by the need to develop a needle-free device for eliminating major global healthcare problems caused by needles. The generation of liquid jets by means of a continuous-wave laser, focused into a light absorbing solution, was studied with the aim of developing a portable and affordable jet injector. We designed and fabricated glass microfluidic devices, which consist of a chamber where thermocavitation is created and a tapered channel. The growth of a vapor bubble displaces and expels the liquid through the channel as a fast traveling jet. Different parameters were varied with the purpose of increasing the jet velocity. The velocity increases with smaller channel diameters and taper ratios, whereas larger chambers significantly reduce the jet speed. It was found that the initial position of the liquid-air meniscus interface and its dynamics contribute to increased jet velocities. A maximum velocity of 94+/-3 m/s for a channel diameter of D=120 MUm, taper ratio n=0.25, and chamber length E=200 MUm was achieved. Finally, agarose gel-based skin phantoms were used to demonstrate the potential of our devices to penetrate the skin. The maximum penetration depth achieved was ~1 mm, which is sufficient to penetrate the stratum corneum and for most medical applications. A meta-analysis shows that larger injection volumes will be required as a next step to medical relevance for laser-induced jet injection techniques in general. PMID- 29030943 TI - Noncontact holographic detection for photoacoustic tomography. AB - A holographic method for high-speed, noncontact photoacoustic tomography is introduced and evaluated. Relative changes of the object's topography, induced by the impact of thermoelastic pressure waves, were determined at nanometer sensitivity without physical contact. The object's surface was illuminated with nanosecond laser pulses and imaged with a high-speed CMOS camera. From two interferograms measured before and after excitation of the acoustic wave, surface displacement was calculated and then used as the basis for a tomographic reconstruction of the initial pressure caused by optical absorption. The holographic detection scheme enables variable sampling rates of the photoacoustic signal of up to 50 MHz. The total acquisition times for complete volumes with 230 MVoxel is far below 1 s. Measurements of silicone and porcine skin tissue phantoms with embedded artificial absorbers, which served as a model for human subcutaneous vascular networks, were possible. Three-dimensional reconstructions of the absorbing structures show details with a diameter of 310 MUm up to a depth of 2.5 mm. Theoretical limitations and the experimental sensitivity, as well as the potential for in vivo imaging depending on the detection repetition rate, are analyzed and discussed. PMID- 29030944 TI - Noninvasive detection of nasopharyngeal carcinoma based on saliva proteins using surface-enhanced Raman spectroscopy. AB - The present study evaluated the capability of saliva analysis combining membrane protein purification with surface-enhanced Raman spectroscopy (SERS) for noninvasive detection of nasopharyngeal carcinoma (NPC). A rapid and convenient protein purification method based on cellulose acetate membrane was developed. A total of 659 high-quality SERS spectra were acquired from purified proteins extracted from the saliva samples of 170 patients with pathologically confirmed NPC and 71 healthy volunteers. Spectral analysis of those saliva protein SERS spectra revealed specific changes in some biochemical compositions, which were possibly associated with NPC transformation. Furthermore, principal component analysis combined with linear discriminant analysis (PCA-LDA) was utilized to analyze and classify the saliva protein SERS spectra from NPC and healthy subjects. Diagnostic sensitivity of 70.7%, specificity of 70.3%, and diagnostic accuracy of 70.5% could be achieved by PCA-LDA for NPC identification. These results show that this assay based on saliva protein SERS analysis holds promising potential for developing a rapid, noninvasive, and convenient clinical tool for NPC screening. PMID- 29030945 TI - Adenine-induced chronic kidney disease in rats. AB - Many animal models have been developed to study the causes and treatments of chronic kidney disease (CKD) in humans, an insidious disease resulting from kidney injury and characterized by persistent functional decline for more than 3 months, with or without evidence of structural deficit. The eventual outcome of CKD may be end-stage kidney disease (ESKD), where patients need dialysis or transplantation to survive. Cardiovascular disease is accelerated in patients with CKD and contributes to increased mortality, with the relationship between CKD and cardiovascular disease being bi-directional. Most animal models do not mimic the complexity of the human disease as many do not develop CKD-associated cardiovascular disease. The adenine diet model of CKD in rodents is an exception. The original adenine diet model produced rapid-onset kidney disease with extensive tubulointerstitial fibrosis, tubular atrophy, crystal formation and marked vessel calcification. Since then, lower adenine intake in rats has been found to induce slowly progressive kidney damage and cardiovascular disease. These chronic adenine diet models allow the characterization of relatively stable kidney and cardiovascular disease, similar to CKD in humans. In addition, interventions for reversal can be tested. Here the key features of the adenine diet model of CKD are noted, along with some limitations of other available models. In summary, the data presented here support the use of chronic low-dose adenine diet in rats as an easy and effective model for understanding human CKD, especially the links with cardiovascular disease, and developing potential therapeutic interventions. PMID- 29030946 TI - Excrescent tumor on the left sole in a middle-aged man. PMID- 29030947 TI - Identification of the novel HLA-B*57:91 allele, by next-generation sequencing in a Spanish individual. AB - HLA-B*57:91 differs from HLA-B*57:01:01 by a single nucleotide substitution resulting in an amino acid change. PMID- 29030948 TI - Brief history and user's guide to the Australian National Disability Insurance Scheme. PMID- 29030949 TI - microRNA expression in the neural retina: Focus on Muller glia. AB - The neural retina hosts a unique specialized type of macroglial cell that not only preserves retinal homeostasis, function, and integrity but also may serve as a source of new neurons during regenerative processes: the Muller cell. Precise microRNA-driven mechanisms of gene regulation impel and direct the processes of Muller glia lineage acquisition from retinal progenitors during development, the triggering of their response to retinal degeneration and, in some cases, Muller cell reprogramming and regenerative events. In this review we survey the recent reports describing, through functional assays, the regulatory role of microRNAs in Muller cell physiology, differentiation potential, and retinal pathology. We discuss also the evidence based on expression analysis that points out the relevance of a Muller glia-specific microRNA signature that would orchestrate these processes. PMID- 29030950 TI - Description of four new HLA alleles in the Finnish population: A*03:283N, A*68:167, C*03:327, C*03:361. AB - New HLA alleles found in the Finnish population: A*03:283N, A*68:167, C*03:327 and C*03:361. PMID- 29030952 TI - The novel allele, HLA-A*31:108, identified by sequence-based typing in a Chinese individual. PMID- 29030951 TI - Timeliness of Breast Cancer Treatment Within The Alaska Tribal Health System. AB - PURPOSE: This study examined the time from breast cancer diagnosis to initiation of treatment among Alaska Native (AN) women. We evaluated the impact of age, cancer stage, and rural/urban residence at diagnosis. METHODS: We evaluated characteristics of women recorded in the Alaska Native Tumor Registry who received a first diagnosis of breast cancer between 2009 and 2013. Median time from diagnosis to treatment was assessed. Associations of demographic and clinical characteristics with timely initiation of treatment were evaluated using logistic regression and Cox proportional hazards models. RESULTS: Two hundred seventy-eight (278) AN women were diagnosed with invasive breast cancer in years 2009-2013. Mean age at diagnosis was 56.8 years (SD = 13.0). The median time from diagnosis to initiation of treatment was 23 days (P < .05) with most (94.6%, n = 263) meeting the <=60-day guideline target. Time to treatment was not associated with rural/urban residence, age, or stage at cancer diagnosis. CONCLUSION: These findings indicate that most AN women diagnosed with breast cancer within the AN Tribal Health System receive timely treatment after diagnosis. PMID- 29030953 TI - Anti-desmoglein 1 IgG/IgA pemphigus associated with thymoma. PMID- 29030954 TI - An international investigation into AB plasma administration in hospitals: how many AB plasma units were infused? The HABSWIN study. AB - BACKGROUND: Typical practice is to transfuse group-specific plasma units; however, there are situations where group AB plasma (universal donor) is issued to group A, B, or O recipients. If demand for group AB plasma exceeds collections, there is potential for shortage. This project explored the patterns of group AB plasma utilization at hospitals around the world. STUDY DESIGN AND METHODS: The study had two phases: a survey that inquired about hospital group AB plasma inventory, policies, and transfusion practices and a retrospective review of 2014 calendar year data where participants submitted information on plasma disposition including ABO group of unit and recipient, transfusion location, and select indications. Recruitment occurred through snowball sampling. Descriptive analyses were performed. RESULTS: Survey data were received from 25 centers across 10 countries; of those, 15 participants contributed to the data collection component. These 15 centers transfused a total of 43,369 AB plasma units during the study period. Only 1496 of 5541 (27%) group AB plasma units were transfused to group AB recipients. Transfusion policies, practices, and patterns were variable across sites. CONCLUSION: Group AB plasma units are frequently transfused to non-AB recipients. Whether transfusing 73% of group AB plasma units to non-AB recipients is the ideal inventory management strategy remains to be determined. PMID- 29030955 TI - Vertically Aligned Co9 S8 Nanotube Arrays onto Graphene Papers as High Performance Flexible Electrodes for Supercapacitors. AB - Paper-like electrodes are emerging as a new category of advanced electrodes for flexible supercapacitors (SCs). Graphene, a promising two-dimensional material with high conductivity, can be easily processed into papers. Here, we report a rational design of flexible architecture with Co9 S8 nanotube arrays (NAs) grown onto graphene paper (GP) via a facile two-step hydrothermal method. When employed as flexible free-standing electrode for SCs, the proposed architectured Co9 S8 /GPs exhibits superior electrochemical performance with ultrahigh capacitance and outstanding rate capability (469 F g-1 at 10 A g-1 ). These results demonstrate that the new nanostructured Co9 S8 /GPs can be potentially applied in high performance flexible supercapacitors. PMID- 29030957 TI - Mollusc shells as metagenomic archives: The true treasure is the chest itself. AB - Mollusc shells, beyond the treasure of information inherently conveyed through their morphology and chemical composition also have the capacity to preserve DNA sequences over the long term in their inner structure. This has been clearly demonstrated for the first time in the study published in this issue of Molecular Ecology Resources by Der Sarkissian et al. (). With a methodology specifically dedicated to ancient DNA and solid matrices, the authors were able to successfully extract and amplify DNA from marine shells spanning the last 7,000 years. Furthermore, using metagenomic analyses, they could identify important factors affecting DNA recovery. Using reference genomes and sequences in a targeted approach to assign high-throughput sequencing reads, the authors revealed both the presence of endogenous mollusc DNA and a potent pathogen of Manilla clam. Collectively, the results presented in this study open extremely promising research avenues, from palaeogenomics and evolutionary biology to ecological genomics at population and community levels, as well as the opportunity to fine-tune diagnostic tools for conservation and aquaculture purposes. Last but not least, this study also offers exciting perspectives in epigenomics and the evolution of regulatory processes in the context of adaptation to global change. It can be easily expected that the approach developed by Der Sarkissian et al. () will be pursued and extensively investigated in the near future by the scientific community interested in these issues. PMID- 29030956 TI - Spatial transcriptomes within the Pseudomonas aeruginosa biofilm architecture. AB - Bacterial cooperative associations and dynamics in biofilm microenvironments are of special interest in recent years. Knowledge of localized gene-expression and corresponding bacterial behaviors within the biofilm architecture at a global scale has been limited, due to a lack of robust technology to study limited number of cells in stratified layers of biofilms. With our recent pioneering developments in single bacterial cell transcriptomic analysis technology, we generated herein an unprecedented spatial transcriptome map of the mature in vitro Pseudomonas aeruginosa biofilm model, revealing contemporaneous yet altered bacterial behaviors at different layers within the biofilm architecture (i.e., surface, middle and interior of the biofilm). Many genes encoding unknown functions were highly expressed at the biofilm-solid interphase, exposing a critical gap in the knowledge of their activities that may be unique to this interior niche. Several genes of unknown functions are critical for biofilm formation. The in vivo importance of these unknown proteins was validated in invertebrate (fruit fly) and vertebrate (mouse) models. We envisage the future value of this report to the community, in aiding the further pathophysiological understanding of P. aeruginosa biofilms. Our approach will open doors to the study of bacterial functional genomics of different species in numerous settings. PMID- 29030958 TI - Association of MEOX2 polymorphism with nonsyndromic cleft palate only in a Vietnamese population. AB - To evaluate the association between the single nucleotide polymorphism (SNP) rs227493 in the MEOX2 gene and nonsyndromic cleft palate only, this research was conducted as a case-control study by comparing a nonsyndromic cleft palate only group with an independent, healthy, and unaffected control group who were both examined by specialists. Based on clinical examination and medical records, we analyzed a total of 570 DNA samples, including 277 cases and 293 controls, which were extracted from dry blood spot samples collected from both the Odonto and Maxillofacial Hospital in Ho Chi Minh City and Nguyen Dinh Chieu Hospital in Ben Tre province, respectively. The standard procedures of genotyping the specific SNP (rs2237493) for MEOX2 were performed on a StepOne Realtime PCR system with TaqMan SNP Genotyping Assays. Significant statistical differences were observed in allelic frequencies (allele T and allele G) between the non-syndromic cleft palate only and control groups in female subjects, with an allelic odds ratio of 1.455 (95% confidence interval: 1.026-2.064) and P < 0.05. These study findings suggest that nonsyndromic isolated cleft palate might be influenced by variation of MEOX2, especially SNP rs2237493 in Vietnamese females. PMID- 29030959 TI - iPSC-Derived Vascular Cell Spheroids as Building Blocks for Scaffold-Free Biofabrication. AB - Recently a protocol is established to obtain large quantities of human induced pluripotent stem cells (iPSC)-derived endothelial progenitors, called endothelial colony forming cells (ECFC), and of candidate smooth-muscle forming cells (SMFC). Here, the suitability for assembling in spheroids, and in larger 3D cell constructs is tested. iPSC-derived ECFC and SMFC are labeled with tdTomato and eGFP, respectively. Spheroids are formed in ultra-low adhesive wells, and their dynamic proprieties are studied by time-lapse microscopy, or by confocal microscopy. Spheroids are also tested for fusion ability either in the wells, or assembled on the Regenova 3D bioprinter which laces them in stainless steel micro needles (the "Kenzan" method). It is found that both ECFC and SMFC formed spheroids in about 24 h. Fluorescence monitoring indicated a continuous compaction of ECFC spheroids, but stabilization in those prepared from SMFC. In mixed spheroids, the cell distribution changed continuously, with ECFC relocating to the core, and showing pre-vascular organization. All spheroids have the ability of in-well fusion, but only those containing SMFC are robust enough to sustain assembling in tubular structures. In these constructs a layered distribution of alpha smooth muscle actin-positive cells and extracellular matrix deposition is found. In conclusion, iPSC-derived vascular cell spheroids represent a promising new cellular material for scaffold-free biofabrication. PMID- 29030960 TI - Cell-free DNA noninvasive prenatal screening for aneuploidy versus conventional screening: A systematic review of economic evaluations. AB - Although noninvasive prenatal testing (NIPT) for aneuploidies using cell-free fetal DNA in maternal blood has been reported to have a high accuracy, only little evidence about its cost-effectiveness is available. We systematically reviewed and assessed quality of economic evaluation studies published between January 1, 2009 and January 1, 2016 where NIPT was compared to the current screening practices consisting of biochemical markers with or without nuchal translucency (NT) and/or maternal age. We included 16 studies and we found that, at current level of NIPT prices, contingent NIPT provide the best value for money, especially for publicly funded screening programs. NIPT as first-line test was found not cost-effective in the majority of studies. The NIPT unit cost, the risk cut-offs for current screening practice, the screening uptake rates (first- and second-line screening) as well as the costs and uptake rates of invasive diagnostic screening were the most common uncertain variables. The overall quality of included studies was fair. Considering a possible drop in prices and an ongoing NIPT expansion to include other chromosomes abnormalities other than T21, T18, T13 and sex chromosomes aneuploidies, future research are needed to examine the potential cost-effectiveness of implementing NIPT as first-line test. PMID- 29030961 TI - Overproduction of MCL-PHA with high 3-hydroxydecanoate Content. AB - Methods of producing medium-chain-length poly-3-hydroxyalkanoate (mcl-PHA) with high content of the dominant subunit, 3-hydroxydecanoate (HD), were examined with an emphasis on a high yield of polymer from decanoic acid. High HD content was achieved by using a beta-oxidation knockout mutant of Pseudomonas putida KT2440 (designated as P. putida DBA-F1) or by inhibiting beta-oxidation with addition of acrylic acid (Aa) to wild type P. putida KT2440 in carbon-limited, fed-batch fermentations. At a substrate feed ratio of decanoic acid and acetic acid to glucose (DAA:G) of 6:4 g/g, P. putida DBA-F1 accumulated significantly higher HD (97 mol%), but much lower biomass (8.5 g/L) and PHA (42% of dry biomass) than the wild type. Both biomass and PHA concentrations were improved by decreasing the ratio of DAA:G to 4:6. Moreover, when the substrate feed ratio was further decreased to 2:8, 18 g/L biomass containing 59% mcl-PHA consisting of 100 mol% HD was achieved. The yield of PHA from decanoic acid was 1.24 (g/g) indicating that de novo synthesis had contributed to production. Yeast extract and tryptone (YET) addition allowed the mutant strain to accumulate 74% mcl-PHA by weight with 97 mol% HD at a production rate of 0.41 g/L/hr, at least twice that of published data for any beta-oxidation knock-out mutant. Higher biomass concentration was achieved with Aa inhibition of beta-oxidation in the wild type but the HD content (84 mol%) was less than that of the mutant. A carbon balance showed a marked increase in supernantant organic carbon for the mutant indicating overflow metabolism. Increasing the dominant monomer content (HD) greatly increased melting point, crystallinity, and rate of crystallization. PMID- 29030962 TI - LncRNA DGCR5 promotes lung adenocarcinoma (LUAD) progression via inhibiting hsa mir-22-3p. AB - Long non-coding RNAs (lncRNAs) serve critical roles in the pathogenesis of various cancers, including lung adenocarcinoma (LUAD). Herein, in this study, we aimed to investigate the biological and clinical significance of lncRNA DiGeorge syndrome critical region gene 5 (DGCR5) in LUAD. It was observed that DGCR5 was upregulated in LUAD tissues and LUAD cell lines. Inhibition of DGCR5 can prevent LUAD progression via playing anti-apoptosis roles. Both mRNA expression and protein levels of BCL-2 were increased by DGCR5 downregulation while reversely BAX was increased. Additionally, a novel microRNA target of DGCR5, hsa-mir-22-3p was identified through bioinformatics search and confirmed by dual-luciferase reporter system. Gain and loss-of-function studies were performed to verify whether DGCR5 exerts its biological functions through regulating hsa-mir-22-3p in vitro. Overexpression of DGCR5 was able to reverse the tumor inhibitory effect of hsa-mir-22-3p mimics. Furthermore, in vivo tests tumor xenografts were established to detect the function of DGCR5 in LUAD tumorigenesis. Downregulated DGCR5 expression was greatly associated with smaller tumor size, implying a favorable prognosis of LUAD patients. Taken these together, DGCR5 could be considered as a prognostic biomarker and therapeutic target in LUAD diagnosis and treatment. PMID- 29030963 TI - Estrogen regulates stemness and senescence of bone marrow stromal cells to prevent osteoporosis via ERbeta-SATB2 pathway. AB - Decline of pluripotency in bone marrow stromal cells (BMSCs) associated with estrogen deficiency leads to a bone formation defect in osteoporosis. Special AT rich sequence binding protein 2 (SATB2) is crucial for maintaining stemness and osteogenic differentiation of BMSCs. However, whether SATB2 is involved in estrogen-deficiency associated-osteoporosis is largely unknown. In this study, we found that estrogen mediated pluripotency and senescence of BMSCs, primarily through estrogen receptor beta (ERbeta). BMSCs from the OVX rats displayed increased senescence and weaker SATB2 expression, stemness, and osteogenic differentiation, while estrogen could rescue these phenotypes. Inhibition of ERbeta or ERalpha confirmed that SATB2 was associated with ERbeta in estrogen mediated pluripotency and senescence of BMSCs. Furthermore, estrogen mediated the upregulation of SATB2 through the induction of ERbeta binding to estrogen response elements (ERE) located at -488 of the SATB2 gene. SATB2 overexpression alleviated senescence and enhanced stemness and osteogenic differentiation of OVX BMSCs. SATB2-modified BMSCs transplantation could prevent trabecular bone loss in an ovariectomized rat model. Collectively, our study revealed the role of SATB2 in stemness, senescence, and osteogenesis of OVX-BMSCs. These results indicate that estrogen prevents osteoporosis by promoting stemness and osteogenesis, and inhibiting senescence of BMSCs through an ERbeta-SATB2 pathway. Therefore, SATB2 is a novel anti-osteoporosis target gene. PMID- 29030964 TI - Transcription factor HMG box-containing protein 1 (HBP1) modulates mitotic clonal expansion (MCE) during adipocyte differentiation. AB - Transcription factor HMG box-containing protein 1 (HBP1) has been found to be up regulated in rat adipose tissue and differentiated preadipocyte; however, how HBP1 is involved in adipocyte formation remains unclear. In the present study, we demonstrated that under a standard differentiation protocol HBP1 expression fluctuates with down-regulation in the mitotic clonal expansion (MCE) stage followed by up-regulation in the terminal differentiation stage in both 3T3-L1 and MEF cell models. Also, HBP1 knockdown accelerated cell cycle progression in the MCE stage, but it impaired final adipogenesis. To gain further insight into the role of HBP1 in the MCE stage, we found that the HBP1 expression pattern is reciprocal to that of C/EBPbeta, and ectopic expression of HBP1suppresses C/EBPbeta expression. These data indicate that HBP1 functions as a negative regulator of MCE. In contrast, when HBP1 expression was gradually elevated along with a concomitant induction of C/EBPalpha at the end of the MCE, HBP1 knockdown leads to a significant reduction of C/EBPalpha expression, suggesting that HBP1 mediated C/EBPalpha expression may be needed for the termination of the cell cycle at the end of MCE for terminal differentiation. All told, our findings show that HBP1 is a key transcription factor in the already complicated regulatory cascade during adipocyte differentiation. PMID- 29030965 TI - Fear affects parental care, which predicts juvenile survival and exacerbates the total cost of fear on demography. AB - Fear itself (perceived predation risk) can affect wildlife demography, but the cumulative impact of fear on population dynamics is not well understood. Parental care is arguably what most distinguishes birds and mammals from other taxa, yet only one experiment on wildlife has tested fear effects on parental food provisioning and the repercussions this has for the survival of dependent offspring, and only during early-stage care. We tested the effect of fear on late stage parental care of mobile dependent offspring, by locating radio-tagged Song Sparrow fledglings and broadcasting predator or non-predator playbacks in their vicinity, measuring their parent's behavior and their own, and tracking the offspring's survival to independence. Fear significantly reduced late-stage parental care, and parental fearfulness (as indexed by their reduction in provisioning when hearing predators) significantly predicted their offspring's condition and survival. Combining results from this experiment with that on early stage care, we project that fear itself is powerful enough to reduce late-stage survival by 24%, and cumulatively reduce the number of young reaching independence by more than half, 53%. Experiments in invertebrate and aquatic systems demonstrate that fear is commonly as important as direct killing in affecting prey demography, and we suggest focusing more on fear effects and on offspring survival will reveal the same for wildlife. PMID- 29030966 TI - Metabolic reduction of resazurin; location within the cell for cytotoxicity assays. AB - Resazurin is widely used as a metabolic indicator for living cells, however, there has been considerable debate in the literature with regards to the specific location in the cell where the non-fluorescent resazurin is reduced to the strongly fluorescent resorufin. This lack of clarity about the reduction site makes the use of resazurin reduction data in cytotoxicity studies difficult to interpret. In this study, E. faecalis, a Gram-positive and facultative anaerobic bacterial strain, and the most toxic chlorophenol, pentachlorophenol (PCP), were chosen as models for an anaerobe and toxicant, respectively. By studying the kinetics of resazurin reduction by E. faecalis after different treatments (cell disruption, bacterial filtration, and pre-exposure to toxicant), we confirmed that resazurin reduction to resorufin by live Gram-positive and facultative anaerobic bacterial cells can only happen intracellularly under anaerobic conditions, while resorufin reduction to dihydroresorufin can happen both intracellularly and extracellularly. Based on the understanding of these fundamental mechanisms, we suggest that resazurin reduction can be used as a quick bioassay for measuring cytotoxicity. PMID- 29030967 TI - Preservation of Ceriporiopsis subvermispora and Lentinula edodes treated wheat straw under anaerobic conditions. AB - BACKGROUND: No attention has been paid so far to the preservation of fungal treated lignocellulose for longer periods. In the present study, we treated wheat straw (WS) with the white-rot fungi Ceriporiopsis subvermispora and Lentinula edodes for 8 weeks and assessed changes in pH, chemical composition and in vitro gas production (IVGP) weekly. Fungal-treated WS was also stored for 64 days 'as is', with the addition of lactic acid bacteria (LAB) or with a combination of LAB and molasses in airtight glass jars mimicking ensiling conditions. RESULTS: Both fungi significantly reduced the lignin and hemicellulose content of WS, and increased the cellulose content. The IVGP increased with increasing time of incubation, indicating the increase in digestibility. Both fungi lowered the pH of WS under 4.3, which guarantees an initial and stable low pH during anaerobic storage. Minor changes in fibre composition and IVGP were observed for stored L. edodes treated WS, whereas no change occurred for C. subvermispora. CONCLUSION: It is possible to conserve C. subvermispora and L. edodes treated straw under anaerobic condition without additives up to 64 days. This finding is important for practical application to supply fungi-treated feed to ruminant animals for a prolonged period. (c) 2017 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. PMID- 29030968 TI - Mycoflora assessment, growth and toxigenic features of patulin-producers in kiwifruit in China. AB - BACKGROUND: Fungal development in agricultural products may cause mycotoxin contamination, which is a significant threat to food safety. Patulin (PAT) and PAT-producer contamination has been established as a worldwide problem. The present study aimed to investigate the mycoflora and PAT-producers present in kiwifruits and environmental samples collected from orchards and processing plants in Shaanxi Province, China. RESULTS: Variations in mycoflora were observed in different samples, with penicillia and aspergilli as the predominant genera. Approximately 42.86% of dropped fruits were contaminated with PAT-producers, which harbored the 6-methylsalicylic acid synthase and the isoepoxydon dehydrogenase genes that are involved in PAT biosynthesis. The growth of Penicillium expansum, Penicillium griseofulvum and Penicillium paneum in kiwi puree agar (KPA) medium and kiwi juice well fitted the modified Gompertz and Baranyi and Roberts models (R2 >= 0.95). A significant positive correlation between colony diameter and PAT content in KPA medium of P. expansum and P. griseofulvum was observed (P < 0.05). CONCLUSIONS: The present study analyzed the mycofloral composition and the potential risk for PAT and PAT-producer contamination in kiwifruit, which may be utilized in the establishment of proper management practices in the kiwifruit industry. (c) 2017 Society of Chemical Industry. PMID- 29030970 TI - Annexin A1, Annexin A2, and Dyrk 1B are upregulated during GAS1-induced cell cycle arrest. AB - GAS1 is a pleiotropic protein that has been investigated because of its ability to induce cell proliferation, cell arrest, and apoptosis, depending on the cellular or the physiological context in which it is expressed. At this point, we have information about the molecular mechanisms by which GAS1 induces proliferation and apoptosis; but very few studies have been focused on elucidating the mechanisms by which GAS1 induces cell arrest. With the aim of expanding our knowledge on this subject, we first focused our research on finding proteins that were preferentially expressed in cells arrested by serum deprivation. By using a proteomics approach and mass spectrometry analysis, we identified 17 proteins in the 2-DE protein profile of serum deprived NIH3T3 cells. Among them, Annexin A1 (Anxa1), Annexin A2 (Anxa2), dual specificity tyrosine-phosphorylation-regulated kinase 1B (Dyrk1B), and Eukaryotic translation initiation factor 3, F (eIf3f) were upregulated at transcriptional the level in proliferative NIH3T3 cells. Moreover, we demonstrated that Anxa1, Anxa2, and Dyrk1b are upregulated at both the transcriptional and translational levels by the overexpression of GAS1. Thus, our results suggest that the upregulation of Anxa1, Anxa2, and Dyrk1b could be related to the ability of GAS1 to induce cell arrest and maintain cell viability. Finally, we provided further evidence showing that GAS1 through Dyrk 1B leads not only to the arrest of NIH3T3 cells but also maintains cell viability. PMID- 29030969 TI - Adropin preserves the blood-brain barrier through a Notch1/Hes1 pathway after intracerebral hemorrhage in mice. AB - Adropin is expressed in the CNS and plays a crucial role in the development of stroke. However, little is currently known about the effects of adropin on the blood-brain barrier (BBB) function after intracerebral hemorrhage (ICH). In this study, the role of adropin in collagenase-induced ICH was investigated in mice. At 1-h post-ICH, mice were administered with recombinant human adropin by intranasal. Brain water +content, BBB permeability, and neurological function were measured at different time intervals. Proteins were quantified using western blot analysis, and the localizations of adropin and Notch1 were visualized via immunofluorescence staining. It is shown that adropin reduced brain water content and improved neurological functions. Adropin preserved the functionality of BBB by increasing N-cadherin expression and reducing extravasation of albumin. Moreover, in vivo knockdown of Notch1 and Hes1 both abolished the protective effects of adropin. Taken together, our data demonstrate that adropin constitutes a potential treatment value for ICH by preserving BBB and improving functional outcomes through the Notch1 signaling pathway. PMID- 29030972 TI - White clover fractions as protein source for monogastrics: dry matter digestibility and protein digestibility-corrected amino acid scores. AB - BACKGROUND: The present study aimed to evaluate the use of white clover as an alternative protein source for monogastrics. White clover plant and leaves were processed using a screw-press resulting in a solid pulp and a juice from which protein was acid-precipitated. The chemical composition of all fractions was determined and digestibility of dry matter (DM) and protein was assessed in an experiment with growing rats. RESULTS: Protein concentrates were produced with crude protein (CP) contents of 451 g kg-1 and 530 g kg-1 DM for white clover plant and leaves, respectively, and a pulp with CP contents of 313 and 374 g kg-1 DM from plant and leaves, respectively. The amino acid composition ranged from 4.72 to 6.49 g per 16 g of nitrogen (N) for lysine, 1.82-2.6 g per 16 g N for methionine and cysteine, and 3.66-5.24 g per 16 g N for threonine. True faecal digestibility of protein varied from 0.81 to 0.88, whereas DM digestibility was in the range 0.72-0.80. Methionine and cysteine were found to be limiting in all fractions, regardless of the reference group used. CONCLUSION: A high digestibility of white clover protein was found irrespective of the physical fractionation. Together with a well-balanced amino acid composition, this makes white clover a promising protein source for monogastrics. (c) 2017 Society of Chemical Industry. PMID- 29030973 TI - Returning to work after laparoscopic myomectomy: a prospective observational study. AB - INTRODUCTION: Laparoscopic myomectomy offers women many benefits over conventional open surgery, including an expedited recovery and return to employment. Our study evaluates the time taken for women to return to work after laparoscopic myomectomy and identifies factors prolonging recovery to > 8 weeks. MATERIAL AND METHODS: We prospectively evaluated 94 women undergoing laparoscopic myomectomy by a single surgeon between January 2012 and March 2015. Women had standardized preoperative counseling and completed a validated return to work questionnaire 3 months postoperatively via telephone, post or in clinic. RESULTS: In all, 71/94 (75.5%) women completed the questionnaire. Results were analyzed comparing women who returned to work in <= 8 weeks [43/71 (60.6%)] with those who returned > 8 weeks postoperatively [28/71 (39.4%)]. A higher proportion of Asian and Caucasian women returned to work in <= 8 weeks (24/29) compared with black African and Caribbean women (19/42) (p = 0.003). Mean number of fibroids removed (2.59 and 5.75, respectively) was the only significantly differing factor between the two groups (p = 0.004). There was a significant difference in body mass index (BMI) and time to return to normal activity between the <= 8-week and > 8-week groups (p = 0.027, p = 0.011, respectively). Logistic regression analysis demonstrated that BMI and time to return to normal activity were the only factors prolonging recovery to > 8 weeks (p = 0.039, p = 0.015, respectively). CONCLUSIONS: Time to return to normal activity and BMI significantly influenced the time taken for women to work after laparoscopic myomectomy. Further data would support clinicians in counseling women appropriately and optimizing their postoperative return to employment. PMID- 29030971 TI - Nicotinic acetylcholine receptors in neuropathic and inflammatory pain. AB - Nicotinic acetylcholine receptors (nAChRs) are actively being investigated as therapeutic targets for the treatment of pain and inflammation, but despite more than 30 years of research, there are currently no FDA-approved analgesics that are specific for these receptors. Much of the initial research effort focused on the alpha4beta2 nAChR subtype, but more recently, additional subtypes have been identified as promising new leads and include alpha6beta4, alpha7, and alpha9 containing nAChRs. This Review will focus on the distribution of these nAChRs in the cell types involved in neuropathic pain and inflammation and the activity of currently available nicotinic ligands. PMID- 29030975 TI - Real-time prediction of pre-cooked Japanese sausage color with different storage days using hyperspectral imaging. AB - BACKGROUND: Redness can greatly influence the freshness of sausages. A precise, rapid and noncontact analytical method or tool is needed to quantify the color. Hyperspectral imaging (HSI) is an emerging technique that integrates spectroscopy and imaging to obtain the spectral and spatial information simultaneously. In the present study, the redness of cooked sausages stored up to 57 days was predicted using HSI in tandem with multivariate data analysis. The mean spectra of the sausages were extracted from the hyperspectral images. Partial least squares regression (PLSR) and forward stepwise multiple regression (FSMR) models were used to develop the relavent spectral profiles with the redness of the cooked sausages. RESULTS: Ten important wavelengths were selected based on the regression coefficient values from the PLSR model. The PLSR model established using the full wavelengths presented a good performance, with Rc of 0.934 and a root mean square error of calibration of 0.642 (redness ranged between 14.99 and 21.48). The prediction maps for demonstrating evolution of redness in sausages were developed for the first time using R statistics (R Foundation for Statistical Computing) and Matlab (MathWorks Inc., Natick, MA, USA). CONCLUSION: HSI combined with PLSR and FSMR can be used to quantify and visualize evolution of sausage redness under different storage days. (c) 2017 Society of Chemical Industry. PMID- 29030974 TI - Dopamine Transporter Gene Methylation is Associated with Nucleus Accumbens Activation During Reward Processing in Healthy but not Alcohol-Dependent Individuals. AB - BACKGROUND: Alcohol's reinforcement is mediated by dopamine signaling in the ventral striatum, which is modulated by the dopamine transporter (DAT). We hypothesized that methylomic variation in the DAT gene (DAT1/SLC6A3) affects DAT expression, thus contributing to differences in brain reward circuitry in individuals with alcohol dependence (ALC). METHODS: Blood from 45 recently detoxified ALC and 45 healthy control (HC) individuals was used to assess DNA methylation across 5 functional regions of SLC6A3. Participants completed the monetary incentive delay task in a 3-Tesla magnetic resonance imaging (MRI) scanner. Employing regression models, we examined effects of SLC6A3 methylation on nucleus accumbens (NAc) blood-oxygen-level dependent (BOLD) responses during anticipation of high/low reward/loss. RESULTS: Results showed that decreased methylation of the promoter region of SLC6A3 predicted NAc activation during high loss anticipation (p = 0.028) and low loss anticipation (at trend-level; p = 0.057) in HC but not in individuals with ALC. Specifically, percentage of methylation at 2 CpG sites, located -1,001 and -993 base pairs from the transcription start site, accounted for significant variability in NAc activation in the HC group during high (ps <= 0.010) and low (ps <= 0.006) loss anticipation. There was no effect on reward anticipation. Furthermore, promoter methylation was positively associated with age, which replicates previous findings. CONCLUSIONS: Our data suggest that methylation in the promoter region of SLC6A3 predicts NAc activation during the anticipation of monetary loss in HCs. However, this effect was not present in the ALC group, suggesting that epigenetic regulation of striatal DAT expression might be disrupted in ALC, which may contribute to previously reported differences in sensitivity to reward and punishment in this population. Alternatively, it is possible that a similar relationship in the ALC group remained undetected possibly due to methodological limitations inherent in functional MRI (e.g., poor spatial resolution, low signal to-noise ratio) that generally restrict interpretations regarding mechanisms of epigenetic factors involved in group differences in BOLD responses. Future neuroimaging studies are needed to further elucidate the relationship between SLC6A3 methylation and NAc activation in ALC. PMID- 29030977 TI - Brenda Roe and Rita Pickler. PMID- 29030976 TI - Synergistic effect of HIF-1alpha and FoxO3a trigger cardiomyocyte apoptosis under hyperglycemic ischemia condition. AB - Cardiomyocyte death is an important pathogenic feature of ischemia and heart failure. Through this study, we showed the synergistic role of HIF-1alpha and FoxO3a in cardiomyocyte apoptosis subjected to hypoxia plus elevated glucose levels. Using gene specific small interfering RNAs (siRNA), semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR), Western blot, immunofluorescence, nuclear and cytosolic localization and TUNEL assay techniques, we determined that combined function of HIF-1alpha and FoxO3a under high glucose plus hypoxia condition lead to enhanced expression of BNIP3 inducing cardiomyocyte death. Our results highlighted the importance of the synergistic role of HIF-1alpha and FoxO3a in cardiomyocyte death which may add insight into therapeutic approaches to pathophysiology associated with ischemic diabetic cardiomyopathies. PMID- 29030979 TI - Pioglitazone inhibits cancer cell growth through STAT3 inhibition and enhanced AIF expression via a PPARgamma-independent pathway. AB - Pioglitazone is an anti-diabetic agent that belongs to the thiazolidinedione class, which target peroxisome proliferator-activated receptor gamma (PPARgamma), a transcription factor in the nuclear receptor family. Different cancer cells expressing high levels of PPARgamma and PPARgamma ligands induce cell cycle arrest, cell differentiation, and apoptosis. However, the mechanisms underlying these processes remain unknown. Here, we investigated the mechanism underlying pioglitazone-induced apoptosis in human cancer cells. We showed that at similar concentrations, pioglitazone induced death in cancer cells expressing high or low levels of PPARgamma. Combined treatment of pioglitazone and GW9662, a PPARgamma antagonist, did not rescue this cell death phenotype. Z-VAD-fmk, a pan-caspase inhibitor, did not reverse pioglitazone-induced apoptosis in cancer cells expressing PPARgamma at high or low levels. Pioglitazone suppressed the activation of signal transducers and activator of transcription 3 (STAT3) and Survivin expression, and enhanced the apoptosis-inducing factor (AIF) levels in these cells. Furthermore, pioglitazone enhanced the cytotoxic effect of cisplatin and oxaliplatin by suppressing Survivin and increasing AIF expression. These results indicated that pioglitazone induced apoptosis via a PPARgamma-independent pathway, thus describing pioglitazone as a potential therapeutic agent for controlling the progression of different cancers. PMID- 29030978 TI - Types of cell death and apoptotic stages in Chinese Hamster Ovary cells distinguished by Raman spectroscopy. AB - Cell death is the ultimate cause of productivity loss in bioreactors that are used to produce therapeutic proteins. We investigated the ability of Raman spectroscopy to detect the onset and types of cell death for Chinese Hamster Ovary (CHO) cells-the most widely used cell type for therapeutic protein production. Raman spectroscopy was used to compare apoptotic, necrotic, autophagic, and control CHO cells. Several specific nucleic acid-, protein-, and lipid-associated marker bands within the 650-850 cm-1 spectral region were identified that distinguished among cells undergoing different modes of cell death; supporting evidence was provided by principal component analysis (PCA) of the full spectral data. In addition to comparing the different modes of cell death, normal cells were compared to cells sorted at several stages of apoptosis, in order to explore the potential for early detection of apoptosis. Different stages of apoptosis could be distinguished via Raman spectroscopy, with multiple changes observed in nucleic acid peaks at early stages whereas an increase in lipid signals was a feature of late apoptosis/secondary necrosis. PMID- 29030980 TI - Beneficial Effect of Alcohol Withdrawal on Gut Permeability and Microbial Translocation in Patients with Alcohol Use Disorder. AB - BACKGROUND: The human intestinal microbiota exerts beneficial or harmful effects in several disorders. Many factors, including alcohol consumption, may influence its composition and trigger bacterial translocation. Excessive alcohol consumption increases gut permeability and translocation of endotoxin into peripheral circulation. Although plasma endotoxin concentrations have been measured often, quantitative changes following alcohol withdrawal have never been described in subjects with alcohol use disorder (AUD). The aim of this study was to measure microbial translocation (MT) and gut permeability markers in patients with AUD, to compare these markers to healthy controls (HC) and to monitor markers during the first 6 weeks of abstinence. METHODS: Sixty-five patients with AUD and hospitalized for alcohol withdrawal were included. Epidemiological, clinical, biological, and addictological data were gathered. Blood samples were collected at baseline, then 3 and 6 weeks after alcohol withdrawal. A hundred healthy volunteers were used as controls. Three markers of MT were monitored in plasma samples: sCD14 and lipopolysaccharide-binding protein (LBP) were quantified using ELISA, and 16S rDNA was quantified using real-time polymerase chain reaction. Zonulin and intestinal fatty acid binding protein (I-FABP) blood levels were also monitored as indirect markers of gut permeability, using ELISA. RESULTS: At baseline, LBP, 16S rDNA, sCD14 and I-FABP markers were significantly higher in patients with AUD than in HC. Six weeks after alcohol withdrawal plasma levels of sCD14 and LBP decreased significantly. Cannabis consumption and body mass index (BMI) before alcohol withdrawal influenced baseline MT levels and the decrease in MT markers after 6 weeks. Finally, markers of MT and gut permeability did not correlate with each other before and after alcohol withdrawal. CONCLUSIONS: Before alcohol withdrawal, MT markers were higher in patients with AUD than in HC. After 6 weeks of abstinence, an improvement in MT markers was observed. Our data suggest that there is a link between MT, its improvement, BMI, and cannabis consumption. PMID- 29030981 TI - Mesalazine treatment in organotypic culture of celiac patients: Comparative study with gluten free diet. AB - Given the central role of gluten in the pathogenesis of celiac disease (CD), a strict gluten-free diet (GFD) is the only validated treatment able to restore epithelium integrity and eliminate risks of complications. The risk of gluten contamination and the persistence of inflammation, even in patients strictly adhering to GFD, may render this treatment not always effective claiming the necessity of different new solutions. Oxidative and nitrosative stress have been indicated to play a pathophysiological role in CD. Mesalazine (5-ASA), a drug largely used in inflammatory bowel disease, has potent antinflammatory and antioxidant effects. In fact, mesalazine has been shown to decrease in vitro gluten induced cytokine response and it has been used in vivo in some refractory condition. However, its effect has never compared to that of GFD. The present study aimed to address this issue by comparing the ability of mesalazine and GFD in treating gluten-induced inflammation and oxidative stress. These effects were studied on duodenal mucosa biopsy cultures from newly diagnosed CD patients, treated or not in vitro with mesalazine, and CD biopsy cultures from patients on gluten-free diet for at least one year; and a cohort of controls constituted by healty subjects. On these models, the antioxidant cellular defences, the PPARgamma, NF-kB and NOS2 proteins levels were studied. This study shows that mesalazine is as effective as GFD in reducing oxidative burst and inducing PPARgamma expression; moreover it resulted more effective than GFD in decreasing NF-kB and NOS2 to the levels of controls. PMID- 29030982 TI - Racial disparities in comorbidity and severe maternal morbidity/mortality in the United States: an analysis of temporal trends. AB - INTRODUCTION: Severe maternal morbidity and mortality have increased in the USA in recent years. This trend has not been consistent across all racial groups. The reasons behind this, and the relation between preexisting conditions, pregnancy associated disease and severe maternal morbidity/mortality, have not been fully explored. MATERIAL AND METHODS: Annual data on delivery hospitalizations between 1993 and 2012 were obtained from the Nationwide Inpatient Sample (NIS), representing a 20% sample of hospital discharges from across the USA. Chi-square tests for trend were used to examine temporal patterns in the proportion of pregnancies affected by comorbidities as defined by the Obstetric Comorbidity Score and were stratified by maternal race. Logistic regression was used to determine the impact of temporal increases in comorbidity on severe maternal morbidity/mortality. RESULTS: In 1993, 34.3% of pregnancies had a comorbidity score of >=1; this significantly increased to 44.1% by 2012 (p < 0.001). Baseline differences were observed between all races (Whites 33.7%, Blacks 34.5%, Hispanics 28.0%, Asian/Pacific Islanders 28.1%). Although significant increases were observed for all races, the relative rate of change was lowest for Whites (26.1% increase) and highest for Asian/Pacific Islanders (49.1% increase). The odds of severe maternal morbidity/mortality have steadily increased over time; however, adjustment for Obstetric Comorbidity Score significantly attenuates this correlation. CONCLUSION: The rate of both preexisting comorbidities and pregnancy associated disease is increasing in pregnant women in the USA and varies substantially by race. These trends provide valuable insight into the increasing complexity of pregnancy in the USA and explain a proportion of the observed increase in severe maternal morbidity/mortality. PMID- 29030984 TI - Erratum. PMID- 29030983 TI - Woody plant encroachment amplifies spatial heterogeneity of soil phosphorus to considerable depth. AB - The geographically extensive phenomenon of woody plant encroachment into grass dominated ecosystems has strong potential to influence biogeochemical cycles at ecosystem to global scales. Previous research has focused almost exclusively on quantifying pool sizes and flux rates of soil carbon and nitrogen (N), while few studies have examined the impact of woody encroachment on soil phosphorus (P) cycling. Moreover, little is known regarding the impact of woody encroachment on the depth distribution of soil total P at the landscape scale. We quantified patterns of spatial heterogeneity in soil total P along a soil profile by taking spatially explicit soil cores to a depth of 120 cm across a subtropical savanna landscape that has undergone encroachment by Prosopis glandulosa (an N2 -fixer) and other tree/shrub species during the past century. Soil total P increased significantly following woody encroachment throughout the entire 120-cm soil profile. Large groves (>100 m2 ) and small discrete clusters (<100 m2 ) accumulated 53 and 10 g P/m2 more soil P, respectively, compared to grasslands. This P accumulation in soils beneath woody patches is most likely attributable to P uplift by roots located deep in the soil profile (>120 cm) and transfer to upper portions of the profile via litterfall and root turnover. Woody encroachment also altered patterns of spatial heterogeneity in soil total P in the horizontal plane, with highest values at the centers of woody patches, decreasing toward the edges, and reaching lowest values in the surrounding grassland matrix. These spatial patterns were evident throughout the upper 1.2 m of the soil profile, albeit at reduced magnitude deeper in the soil profile. Spatial generalized least squares models indicated that fine root biomass explained a significant proportion of the variation in soil total P both across the landscape and throughout the profile. Our findings suggest that transfer of P from deeper soil layers enlarges the P pool in upper soil layers where it is more actively cycled may be a potential strategy for encroaching woody species to satisfy their P demands. PMID- 29030985 TI - AGS Notices for JAGS October 2017. PMID- 29030986 TI - The small molecule AU14022 promotes colorectal cancer cell death via p53-mediated G2/M-phase arrest and mitochondria-mediated apoptosis. AB - The p53 tumor suppressor plays critical roles in cell cycle regulation and apoptotic cell death, with its activation capable of sensitizing cancer cells to radiotherapy or chemotherapy. To identify small molecules that induce apoptosis via increased p53 transcriptional activity, we used a novel in-house library containing 96 small-molecule compounds. Using a cell-based screening method with a p53-responsive luciferase-reporter assay system involving benzoxazole derivatives, we found that AU14022 administration significantly increased p53 transcriptional activity in a concentration-dependent manner. Treatment with AU14022 increased p53 protein expression, p53 Ser15 phosphorylation, p53-mediated expression of downstream target genes, and apoptosis in p53-wild-type HCT116 human colon cancer cells, but not in p53-knockout HCT116 cells. Additionally, p53 wild-type HCT116 cells treated with AU14022 exhibited mitochondrial dysfunction, including modulated expression of B-cell lymphoma-2 family proteins and cytochrome c release. Combination treatment with AU14022 and ionizing radiation (IR) synergistically induced apoptosis as compared with IR or AU14022 treatment alone, with further investigation demonstrating that cell cycle progression was significantly arrested at the G2/M phase following AU14022 treatment. Furthermore, in a mouse p53-wild-type HCT116 colon cancer xenograft model, combined treatment with AU14022 and IR inhibited tumor growth more effectively than radiation alone. Therefore, AU14022 treatment induced apoptosis through p53 mediated cell cycle arrest involving mitochondrial dysfunction, leading to enhanced radiosensitivity in colon cancer cells. These results provide a basis for further assessments of AU14022 as a promising anticancer agent. PMID- 29030987 TI - NOD1 downregulates intestinal serotonin transporter and interacts with other pattern recognition receptors. AB - Serotonin (5-HT) is an essential gastrointestinal modulator whose effects regulate the intestinal physiology. 5-HT effects depend on extracellular 5-HT bioavailability, which is controlled by the serotonin transporter (SERT) expressed in both the apical and basolateral membranes of enterocytes. SERT is a critical target for regulating 5-HT levels and consequently, modulating the intestinal physiology. The deregulation of innate immune receptors has been extensively studied in inflammatory bowel diseases (IBD), where an exacerbated defense response to commensal microbiota is observed. Interestingly, many innate immune receptors seem to affect the serotonergic system, demonstrating a new way in which microbiota could modulate the intestinal physiology. Therefore, our aim was to analyze the effects of NOD1 activation on SERT function, as well as NOD1's interaction with other immune receptors such as TLR2 and TLR4. Our results showed that NOD1 activation inhibits SERT activity and expression in Caco-2/TC7 cells through the extracellular signal-regulated kinase (ERK) signaling pathway. A negative feedback between 5-HT and NOD1 expression was also described. The results showed that TLR2 and TLR4 activation seems to regulate NOD1 expression in Caco-2/TC7 cells. To assess the extend of cross-talk between NOD1 and TLRs, NOD1 expression was measured in the intestinal tract (ileum and colon) of wild type mice and mice with individual knockouts of TLR2, and TLR4 as well as double knockout TLR2/TLR4 mice. Hence, we demonstrate that NOD1 acts on the serotonergic system decreasing SERT activity and molecular expression. Additionally, NOD1 expression seems to be modulated by 5-HT and other immune receptors as TLR2 and TLR4. This study could clarify the relation between both the intestinal serotonergic system and innate immune system, and their implications in intestinal inflammation. PMID- 29030988 TI - MiR-145-5p inhibits proliferation and inflammatory responses of RMC through regulating AKT/GSK pathway by targeting CXCL16. AB - The main pathological characteristics of chronic glomerulonephritis (CGN) are diffuse mesangial cells proliferation and inflammatory responses. Our previous studies have confirmed that miR-145-5p was abnormally elevated in CGN rats, but its mechanism remains unclear. Therefore, this study aimed to elucidate the mechanism of miR-145-5p in regulation of renal mesangial cells proliferation and inflammatory responses. In vivo study, the cationic bovine serum albumin (C-BSA) induced CGN rat model was established, and the content of miR-145-5p in renal was examined by qRT-PCR, meanwhile, we also determined the renal function and inflammatory infiltrate. In vitro, the cell proliferation rate, cell cycle and inflammatory changes of rat mesangial cells (RMCs) were measured. Our results suggested that miR-145-5p extended the G0-G1 phase, shortened S phase, inhibited cell proliferation and suppressed inflammatory responses in RMCs. Moreover, miR 145-5p inhibited CXCL16 protein expression through binding the 3'-UTR of CXCL16, suppressed AKT/GSK signaling pathway, and decreased expression of inflammation related mRNAs, such as IL-1alpha, IL-2, IL-6, and TNF-alpha mRNAs. Further, locking CXCL16 alleviated inflammatory reactions and down-regulated AKT/GSK pathway in RMCs. Above all, we concluded that miR-145-5p inhibited proliferation and inflammatory responses of RMCs through regulation of AKT/GSK pathway by targeting CXCL16. PMID- 29030989 TI - Genetic and epigenetic factors influencing vitamin D status. AB - The global prevalence of vitamin D deficiency appears to be increasing, and the impact of this on human health is important because of the association of vitamin D insufficiency with increased risk of osteoporosis, cardiovascular disease and some cancers. There are few studies on the genetic factors that can influence vitamin D levels. In particular, the data from twin and family-based studies have reported that circulating vitamin D concentrations are partially determined by genetic factors. Moreover, it has been shown that genetic variants (e.g., mutation) and alteration (e.g., deletion, amplification, inversion) in genes involved in the metabolism, catabolism, transport, or binding of vitamin D to it receptor, might affect vitamin D level. However, the underlying genetic determinants of plasma 25-hydroxyvitamin D3 [25(OH)D] concentrations remain to be elucidated. Furthermore, the association between epigenetic modifications such as DNA methylation and vitamin D level has now been reported in several studies. The aim of current review was to provide an overview of the possible value of loci associated to vitamin D metabolism, catabolism, and transport as well epigenetic modification and environmental factors influencing vitamin D status. PMID- 29030990 TI - Novel nanohydrogel of hyaluronic acid loaded with quercetin alone and in combination with temozolomide as new therapeutic tool, CD44 targeted based, of glioblastoma multiforme. AB - Glioblastoma multiforme is the most common and aggressive primary brain cancer with only ~3% of patients surviving more than 3 years from diagnosis. Several mechanisms are involved in drug and radiation resistance to anticancer treatments and among them one of the most important factors is the tumor microenvironment status, characterized by cancer cell hypersecretion of interleukins and cytokines. The aim of our research was the synthesis of a nanocarrier of quercetin combined with temozolomide, to enhance the specificity and efficacy of this anticancer drug commonly used in glioblastoma treatment. The nanohydrogel increased the internalization and cytotoxicity of quercetin in human glioblastoma cells and, when co-delivered with temozolomide, contribute to an improved anticancer effect. The nanohydrogel loaded with quercetin had the ability to recognize CD44 receptor, a brain cancer cell marker, through an energy and caveolae dependent mechanism of internalization. Moreover, nanohydrogel of quercetin was able to reduce significantly IL-8, IL-6, and VEGF production in pro inflammatory conditions with interesting implications on the mechanism of glioblastoma cells drug resistance. In summary, novel CD44 targeted polymeric based nanocarriers appear to be proficient in mediating site-specific delivery of quercetin via CD44 receptor in glioblastoma cells. This targeted therapy lead to an improved therapeutic efficacy of temozolomide by modulating the brain tumor microenvironment. PMID- 29030991 TI - OMIP-041: Optimized multicolor immunofluorescence panel rat microglial staining protocol. PMID- 29030992 TI - Inadequate safety reporting in pre-eclampsia trials: a systematic evaluation. AB - BACKGROUND: Randomised trials and their syntheses in meta-analyses offer a unique opportunity to assess the frequency and severity of adverse reactions. OBJECTIVE: To assess safety reporting in pre-eclampsia trials. SEARCH STRATEGY: Systematic search using bibliographic databases, including Cochrane Central Register of Controlled Trials, Embase, and MEDLINE, from inception to August 2017. SELECTION CRITERIA: Randomised trials evaluating anticonvulsant or antihypertensive medication for pre-eclampsia. DATA COLLECTION AND ANALYSIS: Descriptive statistics appraising the adequacy of adverse reaction and toxicity reporting. MAIN RESULTS: We included 60 randomised trials. Six trials (10%) were registered with the International Clinical Trials Registry Platform, two registry records referred to adverse reactions, stating 'safety and toleration' and 'possible side effects' would be collected. Twenty-six trials (43%) stated the frequency of withdrawals within each study arm, and five trials (8%) adequately reported these withdrawals. Adverse reactions were inconsistently reported across eligible trials: 24 (40%) reported no serious adverse reactions and 36 (60%) reported no mild adverse reactions. The methods of definition or measurement of adverse reactions were infrequently reported within published trial reports. CONCLUSIONS: Pre-eclampsia trials regularly omit critical information related to safety. Despite the paucity of reporting, randomised trials collect an enormous amount of safety data. Developing and implementing a minimum data set could help to improve safety reporting, permitting a more balanced assessment of interventions by considering the trade-off between the benefits and harms. FUNDING: National Institute for Health Research (DRF-2014-07-051), UK; Maternity Forum, Royal Society of Medicine, UK. TWEETABLE ABSTRACT: Developing @coreoutcomes could help to improve safety reporting in #preeclampsia trials. @NIHR_DC. PMID- 29030993 TI - Maternal provision of non-sex-specific transformer messenger RNA in sex determination of the wasp Asobara tabida. AB - In many insect species maternal provision of sex-specifically spliced messenger RNA (mRNA) of sex determination genes is an essential component of the sex determination mechanism. In haplodiploid Hymenoptera, maternal provision in combination with genomic imprinting has been shown for the parasitoid Nasonia vitripennis, known as maternal effect genomic imprinting sex determination (MEGISD). Here, we characterize the sex determination cascade of Asobara tabida, another hymenopteran parasitoid. We show the presence of the conserved sex determination genes doublesex (dsx), transformer (tra) and transformer-2 (tra2) orthologues in As. tabida. Of these, At-dsx and At-tra are sex-specifically spliced, indicating a conserved function in sex determination. At-tra and At-tra2 mRNA is maternally provided to embryos but, in contrast to most studied insects, As. tabida females transmit a non-sex-specific splice form of At-tra mRNA to the eggs. In this respect, As. tabida sex determination differs from the MEGISD mechanism. How the paternal genome can induce female development in the absence of maternal provision of sex-specifically spliced mRNA remains an open question. Our study reports a hitherto unknown variant of maternal effect sex determination and accentuates the diversity of insect sex determination mechanisms. PMID- 29030994 TI - Transplant tourism following the declaration of Istanbul: Poor outcomes and nephrologist dilemma. AB - AIM: Transplant tourism (TT) violates many international laws and documents. Despite all efforts, TT seems to be increasing. The aim of this study is to review outcomes of recipients of commercially transplanted kidneys since the Declaration of Istanbul. METHODS: All recipients of kidney transplantation done abroad and then returning to our centre, from September 2008 to December 2015, were included (tourists). Demographics and outcomes were collected from patients' charts. All data were compared with all recipients of living donor kidney transplants done at our centre (locals). RESULTS: A total of 86 tourists and 365 locals were included. Both groups had similar age and gender. Re-grafting rates were the same, however, more pre-emptive transplants were done abroad. TT increased over time. Tourists presented early after TT, median 17.5 (IQR 7-30) days, and 47.7% were encountered initially in the emergency department. One-year graft and patient survivals were significantly lower among tourists compared with locals (87.2% vs. 98.0%, P < 0.001 and 90.7% vs. 98.0%, P < 0.001, respectively). Tourists had a significantly higher rate of acute cellular rejection (19.8% vs. 7.1%, P < 0.001), and they sustained significantly higher rates of serious viral, bacterial and fungal infections compared with the locals. CONCLUSION: Transplant tourism seems to be increasing despite international condemnation and efforts to stop it. Outcomes are significantly worse when compared to local transplant recipients. Concerted effort is needed to better inform patients about the ethical and physical harms related to TT, and to point them towards ethically sound and medically safer alternatives. PMID- 29030995 TI - Magnetic resonance elastography is as accurate as liver biopsy for liver fibrosis staging. AB - BACKGROUND: Liver MR elastography (MRE) is available for the noninvasive assessment of liver fibrosis; however, no previous studies have compared the diagnostic ability of MRE with that of liver biopsy. PURPOSE: To compare the diagnostic accuracy of liver fibrosis staging between MRE-based methods and liver biopsy using the resected liver specimens as the reference standard. STUDY TYPE: A retrospective study at a single institution. POPULATION: In all, 200 patients who underwent preoperative MRE and subsequent surgical liver resection were included in this study. Data from 80 patients were used to estimate cutoff and distributions of liver stiffness values measured by MRE for each liver fibrosis stage (F0-F4, METAVIR system). In the remaining 120 patients, liver biopsy specimens were obtained from the resected liver tissues using a standard biopsy needle. FIELD STRENGTH/SEQUENCE: 2D liver MRE with gradient-echo based sequence on a 1.5 or 3T scanner was used. ASSESSMENT: Two radiologists independently measured the liver stiffness value on MRE and two types of MRE-based methods (threshold and Bayesian prediction method) were applied. Two pathologists evaluated all biopsy samples independently to stage liver fibrosis. Surgically resected whole tissue specimens were used as the reference standard. STATISTICAL TESTS: The accuracy for liver fibrosis staging was compared between liver biopsy and MRE-based methods with a modified McNemar's test. RESULTS: Accurate fibrosis staging was achieved in 53.3% (64/120) and 59.1% (71/120) of patients using MRE with threshold and Bayesian methods, respectively, and in 51.6% (62/120) with liver biopsy. Accuracies of MRE-based methods for diagnoses of >=F2 (90-91% [108 9/120]), >=F3 (79-81% [95-97/120]), and F4 (82-85% [98-102/120]) were statistically equivalent to those of liver biopsy (>=F2, 79% [95/120], P <= 0.01; >=F3, 88% [105/120], P <= 0.006; and F4, 82% [99/120], P <= 0.017). DATA CONCLUSION: MRE can be an alternative to liver biopsy for fibrosis staging. LEVEL OF EVIDENCE: 3. Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018;47:1268 1275. PMID- 29030996 TI - Re-examining the sensitivity of HbA1c to screen for diabetes mellitus. AB - BACKGROUND: One of the laboratory tests recommended by the American Diabetes Association (ADA) to screen for diabetes mellitus (DM) is HbA1c, and it is particularly suitable for segments of the population that cannot or are unwilling to fast for a screening test. The aim of this study was to determine whether HbA1c would be a useful tool to screen for DM in a real-world setting if ADA guidelines for repeat testing to confirm the diagnosis of DM are strictly adhered to. METHODS: A retrospective database study was performed by extracting demographic and laboratory data from a chronic disease registry that collects data on adults from three tertiary hospitals and nine large primary care clinics in Singapore. Data were extracted and analyzed for adults not previously known to have DM whose data was captured in the registry between 2005 and 2016 with HbA1c and at least two diagnostic tests for DM (fasting plasma glucose or 2-h plasma glucose) performed within 4 weeks after HbA1c determination. RESULTS: In all, 3928 adults were included in this study. The sensitivity, specificity, and area under the receiver operating characteristic curve for HbA1c at a threshold of 6.5% were 85.2%, 82.3%, and 0.914, respectively. A higher sensitivity was found in female adults, younger adults, and those of non-Chinese ethnicity. CONCLUSIONS: The sensitivity of HbA1c as a screening test for DM in this study was significantly higher than that reported previously. This work provides additional evidence supporting the inclusion of HbA1c as one of the screening tests for DM. PMID- 29030997 TI - RNA interference and functional characterization of a tergal gland alpha amylase in the German cockroach, Blattella germanica L. AB - German cockroach males possess tergal glands that secrete a combination of oligosaccharides, lipids and proteins. Four major proteins occur in the secretion, with one being the 63 kDa alpha-amylase Blattella germanica Tergal Gland protein-1 (BGTG-1). Denaturing and starch gel electrophoresis coupled with peptide sequencing verified amylase activity for the BGTG-1 protein. BGTG-1 gene expression profiles were determined by using quantitative real-time PCR to compare messenger RNA abundance among isolated tissues of males, females and gravid females. Differences in BGTG-1 gene expression occurred among male tissues, with tergal gland tissue showing the highest expression. Tissues of nongravid and gravid females had significantly lower expression in comparison with male tergal glands (gravid females lowest). RNA interference (RNAi) was used to silence BGTG-1 gene expression by injecting BGTG-1 homologous double-stranded RNA (dsRNA) into male cockroaches. Groups injected with BGTG-1 dsRNA showed ~90% lower BGTG-1 gene and protein expression compared to controls, which correlated with lower amylase activity in colorimetric assays. However, behavioural assays comparing precopulatory behaviour and mating success between RNAi and control males did not reveal differences. These results connect amylase gene expression and activity in tergal gland tissue but suggest other factors, such as other tergal gland components, may contribute more strongly to mating success. PMID- 29030998 TI - Hidden biases in observational epidemiology: the case of unmeasured confounding. PMID- 29030999 TI - Molecular characterizations of DNA methyltransferase 3 and its roles in temperature tolerance in the whitefly, Bemisia tabaci Mediterranean. AB - The Bemisia tabaci Mediterranean (MED) cryptic species is an invasive pest, distributed worldwide, with high ecological adaptability and thermotolerance. DNA methylation (a reversible chromatin modification) is one possible change that may occur within an organism subjected to environmental stress. To assess the effects of temperature stress on DNA methyltransferase 3 (Dnmt3) in MED, we cloned and sequenced BtDnmt3 and identified its functions in response to high and low temperatures. The full-length cDNA of BtDnmt3 was 3913 bp, with an open reading frame of 1962 bp, encoding a 73.89 kDa protein. In situ hybridization showed that BtDnmt3 was expressed mainly in the posterior region. BtDnmt3 messenger RNA expression levels were significantly down-regulated after exposure to heat shock and significantly up-regulated after exposure to cold shock. Furthermore, after feeding on double-stranded RNA specific for BtDnmt3, both heat resistance and cold resistance were significantly decreased, suggesting that BtDnmt3 is associated with thermal stress response and indicating a differential response to high- and low-temperature stress in MED. Together, these results highlight a potential role for DNA methylation in thermal resistance, which is a process important to successful invasion and colonization of an alien species in various environments. PMID- 29031000 TI - Medication contaminants as a potential cause of anaphylaxis to vincristine: What about drug-specific antigens? PMID- 29031001 TI - Experimental Evaluation of (L)Au Electron-Donor Ability in Cationic Gold Carbene Complexes. AB - 29 Si NMR spectroscopy was employed to evaluate the electron donor properties of the (L)Au fragments in the cationic gold (beta,beta-disilyl)vinylidene complexes [(L)Au=C=CSi(Me)2 CH2 CH2 Si(Me)2 ]+ B(C6 F5 )4- [L=P(tBu)2 o-biphenyl or NHC] relative to the p-substituted aryl group in the alpha-aryl-(beta,beta disilyl)vinyl cations [(p-C6 H4 X)-C= CSi(Me)2 CH2 CH2 Si(Me)2 ]+ B(C6 F5 )4- . Similarly, 19 F NMR was employed to evaluate the sigma- and pi-electron donor properties of the (L)Au fragments in the neutral gold fluorophenyl complexes (L)Au(C6 H4 F) and in the cationic (fluorophenyl)methoxycarbene complexes [(L)AuC(OMe)(C6 H4 F)]+ SbF6- [L=P(tBu)2 o-biphenyl or IPr] relative to the p substituted aryl group of the protonated monofluorobenzophenones [(p-C6 H4 X)(C6 H4 F)COH]+ OTf- . The results of these studies indicate that relative to p substituted aryl groups, the gold (L)Au fragments [L=P(tBu)2 o-biphenyl or NHC] are significantly more inductively electron donating and are comparable pi-donors and for this reason, the extent of (L)Au->C1 electron donation in gold carbene complexes appears to exceed that provided by a p-(dimethyamino)phenyl group. Furthermore, the [L=P(tBu)2 o-biphenyl]Au fragment is a nominally stronger electron donor than the (IPr)Au fragment, and both are significantly more inductively electron donating than the (PPh3 )Au and [P(OMe)3 ]Au fragments. PMID- 29031002 TI - Resistance training reduces metabolic syndrome and inflammatory markers in older women: A randomized controlled trial. AB - BACKGROUND: This study analyzed the effects of a 12-week resistance training (RT) program without dietary interventions on metabolic syndrome (MetS) components and inflammatory biomarkers in older women. METHODS: Fifty-three older women (mean [+/-SD] age 70.4 +/- 5.7 years; mean body mass index 26.7 +/- 4.0 kg/m2 ) were randomly assigned to a training group (TG; n = 26) that performed 12 weeks of an RT program or a control group (CG; n = 27) that did not perform any type of physical exercise over the same period. Body composition (dual energy X-ray absorptiometry), muscular strength (one-repetition maximum tests), blood pressure (BP), and blood sample measurements were performed before and after intervention. RESULTS: After the 12-week period, there were significantly reductions (P < 0.05) in glucose levels (-20.4% vs -0.3%), waist circumference (-1.5% vs +2.0%), and systolic BP (-6.2% vs +0.9%), and complete normalization of MetS prevalence (18% at baseline vs. 0% after 12-weeks RT) in the TG. Moreover, C-reactive protein and tumor necrosis factor-alpha concentrations decreased in the TG (-28.6% and 21.6%, respectively), but increased in the CG (+34.5% and +13.3%, respectively). In addition there were positive improvements in the MetS Z-score in the TG but not CG (-21.6% vs +13.3%, respectively). CONCLUSION: The results suggest that a 12-week RT program seems to effectively reduce MetS components and inflammatory biomarkers in older women, regardless of dietary intervention. The RT-induced adaptations in body composition and inflammatory biomarkers appear to be related to healthy adaptations in risk factors for MetS. PMID- 29031003 TI - Step-by-step calculation and spreadsheet tools for predicting stressor levels that extirpate genera and species. AB - In 2011, the United States Environmental Protection Agency (USEPA) released a field-based method for estimating the extirpation of freshwater aquatic benthic invertebrates by ionic mixtures dominated by HCO3- , SO42- , and Ca2+ measured as specific conductivity (SC). The estimate of extirpation was SC at the 95th centile (XC95) of a weighted cumulative frequency distribution (CFD) of a genus or species over a range of SC. A CFD of XC95 values was used to predict the SC at which 5% of genera were likely to be extirpated. Because there are many uses for XC95 values and many data sets that could be analyzed using this method, we laid out a step-by-step method for calculating XC95 values and the stressor level that predicts a 5% extirpation of genera (HC05). Although the calculations can be done with a handheld calculator, we developed 2 downloadable Microsoft Excel(r) spreadsheet calculation tools that are easy to use to calculate XC95 values, to plot a taxon's XC95 cumulative frequency distribution with increasing SC, and to plot probabilities of observing a taxon at a particular SC. They also plot cumulative frequency distributions of XC95 values and calculate HC05 values. In addition to the tools, we share an example and the output of XC95 values for 176 distinct aquatic benthic invertebrates in Appalachia, in West Virginia, USA. Integr Environ Assess Manag 2018;14:174-180. (c) 2017 SETAC. PMID- 29031004 TI - Starting a uterus transplantation service: notes from a small island. PMID- 29031005 TI - Quantitative high-content/high-throughput microscopy analysis of lipid droplets in subject-specific adipogenesis models. AB - Neutral lipids packed in lipid droplets (LDs) are essential as a source of fuel for organisms, and specialized storing cells, the adipocytes, provide a buffer for energy variations. Many modern-society-disorders are connected with excess accumulation or deficiency of LDs in adipose tissue. Intracellular LD number and size distribution reflect the tissue conditions, while the associated mechanisms and genes rs are still poorly understood. Large-scale genetic screens using human in vitro differentiated primary adipocytes require cell samples donated from many patients. The heterogeneity appearing between donors highlighted the need for high-throughput methods robust to individual variations. Previous image analysis algorithms failed to handle individual LDs, but focused on averages, hiding population heterogeneity. We present a new high-content analysis (HCA) technique for analysis of fat cell metabolism using data from a large-scale RNAi screen including images of more than 500 k in vitro differentiated adipocytes from three donors. The RNAi-based suppression of Perilipin 1 (PLIN1), a protein involved in the adipocyte lipid metabolism, served as a positive control, while cells treated with randomized RNA served as negative controls. We validate our segmentation by comparing our results to those of previously published methods: We also evaluate the discriminative power of different morphological features describing LD size distribution. Classification of cells as containing few large or many small LDs followed by calculating the percentage of cells in each class proved to discriminate the positive PLIN1-suppressed phenotype from the untreated negative control with an area under the receiver operating characteristic curve of 0.98. The results suggest that this HCA method offers improved segmentation and classification accuracy, and can, thus, be utilized to quantify changes in LD metabolism in response to treatment in many cell models relevant to a variety of diseases. (c) 2017 International Society for Advancement of Cytometry. PMID- 29031006 TI - The kidney and cardiovascular outcome trials. AB - Chronic kidney disease (CKD) affects a substantial minority of people with type 2 diabetes (T2D). Analysis of US National Health and Nutrition Examination Survey (NHANES) datasets from 2007 through 2012 showed Stage 3 or worse disease (estimated glomerular filtration rate [eGFR] <60 mL/min per 1.73 m2 ) in nearly one in five patients, with increasing age, blood pressure, obesity, and levels of glycemia all associated with higher likelihood of Stage 3 or worse CKD, comparable to findings from surveys from many other areas, which also show micro- or macroalbuminuria to be present in one-sixth to one-third of diabetic people. Improvement in albuminuria has been shown in clinical trials of glycemic interventions, including the Action to Control Cardiovascular Disease in Diabetes (ACCORD) trial, the Action in Diabetes and Vascular Disease: Preterax and Diamicron MR Controlled Evaluation (ADVANCE) trial, in which the nephroprotective effect of blood pressure lowering was also demonstrated, and the UK Prospective Diabetes Study (UKPDS). However, over the past decade a host of cardiovascular outcome trials (CVOTs) have been performed with newer T2D therapeutic agents, and many of these have included intriguing information pertaining to renal disease and renal outcomes not necessarily related to changes in glycemia. It is of interest to review some of these findings. Glucagon-like peptide-1 (GLP-1) has been reported to increase glomerular filtration rate (GFR), renal blood flow, and the fractional excretion both of sodium and potassium, with renal GLP-1 receptors present in afferent arteriolar vascular smooth muscle cells, glomerular endothelial cells and macrophages, juxtaglomerular cells, and the proximal tubule, perhaps mediating the greater natriuresis seen after oral than intravenous sodium. In the Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results (LEADER) trial, the significant 13% reduction in the primary composite outcome of cardiovascular death, myocardial infarction, and stroke was found on subgroup analysis to particularly occur among participants with Stage 3 CKD, having eGFR 30-59 mL/min per 1.73 m2 . No significant effect on eGFR was found with liraglutide, although both those receiving and not receiving the drug showed a decline in eGFR from approximately 75 to 65 mL/min per 1.73 m2 over the 48-month period of observation. Liraglutide administration was associated with a significant reduction in albuminuria, with nearly a 25% lower likelihood of development of macroalbuminuria, and with the albumin: creatinine ratio (ACR) approximately 20% lower among treated people, regardless of the baseline level of eGFR. Similarly, in the Evaluation of Lixisenatide in Acute Coronary Syndrome (ELIXA) trial, a 34% increase in the urine ACR was reported among people receiving placebo, but the increase was 24% among those receiving lixisenatide, and in the Trial to Evaluate Cardiovascular and Other Long-term Outcomes with Semaglutide in Subjects with Type 2 Diabetes (SUSTAIN-6), persistent macroalbuminuria developed among 2.7% of those receiving semaglutide, but among 4.9% of those receiving placebo. The enzyme dipeptidyl peptidase (DPP)-4 is, like the GLP-1 receptor, present in multiple renal membrane bound locations, including afferent arteriolar vascular smooth muscle cells, mesangial cells, podocytes, and proximal tubular cells, and DPP-4 inhibitors appear to have salutary effects on albuminuria similar to those of the GLP-1 agents. In the Saxagliptin Assessment of Vascular Outcomes Recorded in Patients with Diabetes Mellitus (SAVOR)-Thrombolysis in Myocardial Infarction (TIMI) 53 trial, saxagliptin was associated with significantly less worsening and more improvement in microalbumin levels at 1 year, at 2 years, and by end-of treatment. The reduction in microalbumin levels was similar in patients with and without renal impairment. Interestingly, there was no relationship between improvement in albuminuria and improvement in HbA1c. The other DPP4i CVOTs have not reported effects of these agents on renal function or albuminuria, but studies of sitagliptin and linagliptin suggest that these agents may also reduce albuminuria. Sodium-glucose cotransporter (SGLT) 2 inhibitors affect multiple sites, with the potential to affect renal function. The Canagliflozin Cardiovascular Assessment Study (CANVAS) showed a 27% reduction in progression of albuminuria, with a 40% reduction in eGFR, need for renal-replacement therapy, or death from renal causes associated with the use of canagliflozin. After a fall in mean eGFR with canagliflozin from 76 to 73 mL/min per 1.73 m2 at 3 months, eGFR remained stable through 6 years while gradually declining during the period of observation with placebo. Evidence of dual effects of SGLT2 inhibition on both albuminuria and GFR was even more strongly shown in the Empagliflozin Cardiovascular Outcome Event Trial in Type 2 Diabetes Mellitus Patients (EMPA-REG OUTCOME); in that CVOT, although there was an initial decline in eGFR with empagliflozin, from 94 mL/min per 1.73 m2 through 192 weeks, eGFR was consistently higher with empagliflozin, although this was less clear in trial participants with baseline eGFR <60 mL/min per 1.73 m2 . Empagliflozin also reduced the development of acute renal failure. Further analysis showed empagliflozin to be associated with a reduction in albuminuria, regardless of the baseline urine albumin level. The CVOTs have offered the possibility that diabetes treatment may move beyond surrogate endpoints to actual cardiovascular outcome benefits. It appears that these drugs will also lead to a reduction in adverse renal outcomes. We should look with optimism at this potential approach to a major complication of diabetes. PMID- 29031007 TI - Acenequinocumulenes: Lateral and Vertical pi-Extended Analogues of Tetracyanoquinodimethane (TCNQ). AB - We have designed a series of molecules and developed synthetic methodology that allows for the inclusion of structural diversity along both the lateral and vertical axes of the basic TCNQ skeleton. In the lateral direction, benzoannulation extends the pi-system through (hetero)acene formation, whereas incorporation of a [3]cumulene increases delocalization vertically. The potential of these new molecules as semiconductors is explored through UV/Vis spectroscopy, cyclic voltammetry, X-ray crystallography, thin-film formation, and mobility measurements (using space charge limited current measurements). PMID- 29031008 TI - Identification of a novel homozygous TRAPPC9 gene mutation causing non-syndromic intellectual disability, speech disorder, and secondary microcephaly. AB - TRAPPC9 gene mutations have been linked recently to autosomal recessive mental retardation 13 (MRT13; MIM#613192) with only eight families reported world-wide. We assessed patients from two consanguineous pedigrees of Pakistani descent with non-syndromic intellectual disability and postnatal microcephaly through whole exome sequencing (WES) and cosegregation analysis. Here we report six further patients from two pedigrees with homozygous TRAPPC9 gene mutations, the novel nonsense mutation c.2065G>T (p.E689*) and the previously identified nonsense mutation c.1423C>T (p.R475*). We provide an overview of previously reported clinical features and highlight common symptoms and variability of MRT13. Common findings are intellectual disability and absent speech, and frequently microcephaly, motor delay and pathological findings on MRI including diminished cerebral white matter volume are present. Mutations in TRAPPC9 should be considered in non-syndromic autosomal recessive intellectual disability with severe speech disorder. PMID- 29031009 TI - Fabrication of biodegradable foams for deep tissue negative pressure treatments. AB - Devices for negative pressure wound therapy (NPWT) rely on compressible foams operating at the tissue-device interface. Clinically used foams are nonabsorbable and if used on deep wounds or left in place for an extended period of time, excessive cell ingrowth and formation of granulation tissue into the foam may require a surgical procedure to remove the foam. Foams with fast degradation and with low immunogenicity and fibrotic response are required. Foams composed of combinations of poly(lactide-co-glycolide) (PLGA), poly(lactide-co-caprolactone) (PLCL), and polycaprolactone (PCL) were created by combined salt leaching and solvent displacement protocols. In vitro and in vivo degradation studies and mechanical properties of foams were evaluated and compared to clinically used poly(vinyl alcohol) (PVA) foam and PCL foams. Foams composed of PLGA (50:50 lactide:glycolide) of low molecular weight blended with PCL maintained mechanical properties and degraded significantly after 21 days of subcutaneous implantation in rats. The most ideal formulations for use in NPWT were identified as copolymeric PLGA (Mn 3000 Da) at a lactide:glycolide ratio of 50:50 combined with PCL at either a 75:25 or 50:50 ratio, and copolymeric PLGA (Mn 7500 Da) at a lactide:glycolide ratio of 50:50 combined with PCL at a 50:50 ratio. (c) 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1998 2007, 2018. PMID- 29031010 TI - Evaluation of aprepitant for acute chemotherapy-induced nausea and vomiting in children and adolescents with acute lymphoblastic leukemia receiving high-dose methotrexate. AB - BACKGROUND: Chemotherapy-induced nausea and vomiting (CINV) negatively impacts patients' quality of life. The emetogenicity of high-dose methotrexate in children and adolescents with cancer is incompletely characterized. At our institution, a number of patients with acute lymphoblastic leukemia (ALL) have received aprepitant with courses of high-dose methotrexate after poor CINV control with prior courses. PROCEDURE: We conducted a retrospective cohort analysis on patients with ALL who received methotrexate 5 g/m2 /dose with and without concomitant aprepitant at Texas. Children's Hospital between October 1, 2010 and January 31, 2016. RESULTS: We identified 16 patients who received a total of 69 courses of methotrexate. An enhanced antiemetic regimen containing aprepitant was administered with 42 methotrexate courses and resulted in a 54% reduction in the use of as-needed antiemetics (P = 0.002, 95% CI: 21-89%). There were no statistically significant differences in methotrexate area under the curve values (2,209 MUM?hr/l +/- 151 vs. 2,051 MUM?hr/l +/- 94, P = 0.355) or end infusion methotrexate concentrations (80.5 MUM +/- 5.6 vs. 74.7 MUM +/- 3.2, P = 0.335) in patients receiving a standard versus an enhanced antiemetic regimen. CONCLUSIONS: The addition of aprepitant reduces both CINV and the use of rescue antiemetics. Aprepitant does not appear to affect the pharmacokinetics of methotrexate. Granisetron was prescribed more frequently than ondansetron, but selection of secondary and tertiary agents, if any, was highly variable. PMID- 29031011 TI - A framework for the identification of hotspots of climate change risk for mammals. AB - As rates of global warming increase rapidly, identifying species at risk of decline due to climate impacts and the factors affecting this risk have become key challenges in ecology and conservation biology. Here, we present a framework for assessing three components of climate-related risk for species: vulnerability, exposure and hazard. We used the relationship between the observed response of species to climate change and a set of intrinsic traits (e.g. weaning age) and extrinsic factors (e.g. precipitation seasonality within a species geographic range) to predict, respectively, the vulnerability and exposure of all data-sufficient terrestrial non-volant mammals (3,953 species). Combining this information with hazard (the magnitude of projected climate change within a species geographic range), we identified global hotspots of species at risk from climate change that includes the western Amazon basin, south-western Kenya, north eastern Tanzania, north-eastern South Africa, Yunnan province in China, and mountain chains in Papua-New Guinea. Our framework identifies priority areas for monitoring climate change effects on species and directing climate mitigation actions for biodiversity. PMID- 29031012 TI - The role of diabetes mellitus and BMI in the surgical treatment of ankle fractures. AB - BACKGROUND: Open reduction and internal fixation is the standard treatment for displaced ankle fractures. However, the presence of comorbidities such as diabetes mellitus and body mass index (BMI) are associated with poor bone quality, and these factors may predict the development of postoperative complications. The study aim was to assess the role of diabetes mellitus and BMI in wound healing in patients younger than 65 years who were surgically treated for malleoli fractures. METHODS: Ninety patients, aged from 18 to 65 years old, with surgically treated ankle fracture, were retrospectively enrolled. Patients were classified in two groups: patient with diabetes and patients without diabetes (insulin-dependent and noninsulin dependent). All patients were assessed for wound complications, Visual Analogue Scale and Foot and Ankle Disability Index (FADI) were assessed for all patients. Logistic regression was used to identify the risk of wound complications after surgery using the following factors as explanatory variables: age, gender, duration of surgery, BMI, hypercholesterolemia, smoking history, diabetes mellitus, and high blood pressure. RESULTS: In total, 38.9% of patients showed wound complications. Of them, 17.1% were nondiabetics and 82.9% were diabetics. We observed a significant association between DM and wound complications after surgery (P = .005). Logistic regression analysis revealed that DM (P < .001) and BMI (P = .03) were associated with wound complications. The odds of having a postoperative wound complication were increased 0.16 times in the presence of diabetes and 1.14 times for increasing BMI. CONCLUSION: This study showed that diabetes mellitus and higher BMI delay the wound healing and increase the complication rate in young adult patients with surgically treated bimalleolar fractures. PMID- 29031013 TI - Intragenic hypomethylation of DNMT3A in patients with myelodysplastic syndrome. AB - BACKGROUND: DNMT3A is a DNA methyltransferase that acts in de novo methylation. Aberrant expression of DNMT3A has been reported in several human diseases, including myelodysplastic syndrome (MDS). However, the pattern of DNMT3A methylation remains unknown in MDS. METHODS: The present study was aimed to investigate the methylation status of DNMT3A intragenic differentially methylated region 2 (DMR2) using real-time quantitative methylation-specific PCR and analyze its clinical significance in MDS. RESULTS: Aberrant hypomethylation of DNMT3A was found in 57% (51/90) MDS cases. There were no significant differences in age, sex, white blood cell counts, platelet counts, hemoglobin counts and World Health Organization, International Prognostic Scoring System and karyotype classifications between DNMT3A hypomethylated and DNMT3A hypermethylated groups. However, the patients with DNMT3A hypomethylation had shorter overall survival time than those without DNMT3A hypomethylation (11 months vs. 36 months, p=0.033). Multivariate analysis confirmed the independent adverse impact of DNMT3A hypomethylation in MDS. CONCLUSIONS: Our data suggest that DNMT3A DMR2 hypomethylation may be a negative prognostic hallmark in MDS. PMID- 29031014 TI - Indirect method for validating transference of reference intervals. AB - BACKGROUND: Transference of reference intervals (RIs) from multicentre studies are often verified by use of a small number of samples from reference individuals or by the use of one serum sample (Serum X for NORIP RI). Despite recommended and appropriate methods, both have inconveniencies and drawbacks. Several attempts have been made to develop an indirect method, which uses historical data from the laboratory. These methods are retrospective relying on older test results. A near prospective method would be preferable for the laboratories introducing new methods or changing analytical platforms. METHODS: We performed a data mining experiment using results from our laboratory information system covering patients from a large geographic area. Request patterns for patients with assumed healthy characteristics were identified and used to extract laboratory results for calculation of new RI by an indirect method. Calculated RI and confidence intervals (CIs) were compared to transferred NORIP RI verified by NFKK Reference Serum X. RESULTS: We found that our indirect method and NFKK Reference Serum X in general produced similar results when verifying transference of RI. The method produces results for all stratifications. Only single stratifications and one analyte showed unexplained incongruences to the NORIP RI. CONCLUSIONS: Our results suggest using request patterns as a surrogate measure for good health status. This allows for a data mining method for validation of RI or validating their transference, which is likely to be applicable in countries with similar healthcare and laboratory information system. PMID- 29031016 TI - Preanalytics of ammonia: stability, transport and temperature of centrifugation. PMID- 29031015 TI - The venous thromboembolic risk and the clot wave analysis: a useful relationship? AB - BACKGROUND: Hospitalized patients with acute medical conditions have higher venous thromboembolism (VTE) risk. A patient with a final Padua Prediction Score (PPS) of >=4 is considered to be at high risk for VTE. The aim of this study was to investigate on a possible relationship between PPS, the dynamics of the clot formation, i.e. the clot waveform analysis (CWA) of aPTT, fibrinogen and D-Dimer in a large group of medical patients. METHODS: CWA in terms of velocity (first derivative), acceleration (second derivative), density (Delta) of aPTT, fibrinogen, D-Dimer and PPS for VTE were determined in 801 medical patients divided in three groups (without antithrombotic prophylaxis and high PPS, without antithrombotic prophylaxis and low PPS, with antithrombotic prophylaxis and high PPS) and a group of healthy subjects. RESULTS: CWA, fibrinogen and D-Dimer values were higher in the medical patients with high PPS with or without antithrombotic prophylaxis when compared with patients without antithrombotic prophylaxis with low PPS and healthy subjects. The second derivative, fibrinogen and D-Dimer were significantly associated with a high PPS score (>=4): odds ratio (OR) = 1.53, 95% confidence interval (CI) = 1.03-2.28; OR = 1.91, 95% CI = 1.3-2.79; OR = 3.16, 95% CI = 2.29-4.36, respectively. Interactions between first derivative and D Dimer (OR = 2.14, 95% CI = 1.23-3.72) and first derivative and fibrinogen (OR = 1.75, 95% CI = 1.02-2.98) were found. CONCLUSIONS: CWA could give useful information to recognize a hypercoagulable state in patients admitted to a medical ward with high and low PPS. First and second derivative aPTT, D-Dimer and fibrinogen levels could be added to PPS to better assess the global thromboembolic risk of these patients. PMID- 29031017 TI - How to reduce scientific irreproducibility: the 5-year reflection. AB - We discuss in depth six causes of scientific irreproducibility and their ramifications for the clinical sciences: fraud, unfounded papers published by prominent authorities, bias, technical deficiencies, fragmented science and problems with big data. Some proposed methods to combat this problem are briefly described, including an effort to replicate results from some high impact papers and a proposal that authors include detailed preclinical data in papers with supposedly high translational value. We here advocate for a 5-year reflection on papers with seemingly high clinical/translational potential, published alongside the original paper where authors reflect on the quality, reproducibility and impact of their findings. These reflections can be used as a benchmark for credibility, and begin a virtuous cycle of improving the quality of published findings in the literature. PMID- 29031018 TI - Strategies to define performance specifications in laboratory medicine: 3 years on from the Milan Strategic Conference. AB - Measurements in clinical laboratories produce results needed in the diagnosis and monitoring of patients. These results are always characterized by some uncertainty. What quality is needed and what measurement errors can be tolerated without jeopardizing patient safety should therefore be defined and specified for each analyte having clinical use. When these specifications are defined, the total examination process will be "fit for purpose" and the laboratory professionals should then set up rules to control the measuring systems to ensure they perform within specifications. The laboratory community has used different models to set performance specifications (PS). Recently, it was felt that there was a need to revisit different models and, at the same time, to emphasize the presuppositions for using the different models. Therefore, in 2014 the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM) organized a Strategic Conference in Milan. It was felt that there was a need for more detailed discussions on, for instance, PS for EQAS, which measurands should use which models to set PS and how to set PS for the extra-analytical phases. There was also a need to critically evaluate the quality of data on biological variation studies and further discussing the use of the total error (TE) concept. Consequently, EFLM established five Task Finish Groups (TFGs) to address each of these topics. The TFGs are finishing their activity on 2017 and the content of this paper includes deliverables from these groups. PMID- 29031019 TI - Reply to: Analytical evaluation of the performances of Diazyme and BRAHMS procalcitonin applied to Roche Cobas in comparison with BRAHMS PCT-sensitive Kryptor. PMID- 29031020 TI - Fetal MRI, lower acceptance by women in research vs. clinical setting. AB - AIM: To determine acceptance of pregnant women to undergo fetal magnetic resonance imaging (MRI) examination in research and clinical setting. METHODS: A prospective study included a research group [part of a study comparing brain ultrasound (US) to MRI in fetuses at risk for acquired brain damage] and a clinical group [fetuses with suspected (brain) anomalies after structural US examination] from 2011 to 2014. All women were advised to use sedatives. MRI declinations, use of sedation, MRI duration and imaging quality were compared between both groups. RESULTS: Study participation was accepted in 57/104 (55%) research cases. Fetal MRI was performed in 34/104 (33%) research and 43/44 (98%) clinical cases. Reasons to decline study participation were MRI related in 41%, and participation was too burdensome in 46%. Acceptance was highest for indication infection and lowest in alloimmune thrombocytopenia and monochorionic twin pregnancy. Sedatives were used in 14/34 research and 43/43 clinical cases. Scan duration and quality were comparable (21 and 20 min in research and clinical cases, respectively, moderate/good quality in both groups). CONCLUSIONS: Pregnant women consider MRI more burdensome than professionals realize. Two-third of women at risk for fetal brain damage decline MRI examination. Future studies should evaluate which information about fetal MRI is supportive. PMID- 29031021 TI - Re: Utility of routine urine CMV PCR and total serum IgM testing of small for gestational age infants: a single center review. PMID- 29031022 TI - Fetal analysis with invasive method (FA-I) and fetal analysis with non-invasive method (FA-NI): replacing current, deceptively imprecise clinical nomenclature. AB - There is a problem with the current nomenclature of prenatal evaluation. The current nomenclature of "prenatal testing" and "prenatal screening" - along with their subsets of "ultrasound testing," "ultrasound screening," "non-invasive prenatal testing," "non-invasive prenatal screening," and "prenatal diagnosis" - has become so imprecise that clinical misinterpretation and distortion of the informed consent process are increasingly difficult to avoid. To remedy this problem, we propose a new, precise nomenclature: "fetal analysis with invasive method" (FA-I) and "fetal analysis with non-invasive method," (FANI) using various techniques. This new nomenclature is designed to be precise and therefore facilitate effective communication among physicians and with pregnant women. For ease of use the new nomenclature can be formulated as an abbreviation: FA-I and FA-NI. PMID- 29031023 TI - Whole-Body Vibration Combined with Treadmill Training Improves Walking Performance in Post-Stroke Patients: A Randomized Controlled Trial. AB - BACKGROUND Stroke is characterized by an asymmetrical gait pattern that causes poor stability and reduces overall activity levels. The aim of this study was to investigate the effect of whole-body vibration combined with treadmill training (WBV-TT) on walking performance in patients with chronic stroke. MATERIAL AND METHODS Thirty ambulatory chronic stroke patients were randomly allocated to the WBV-TT group or the treadmill training (TT) group. The participants in the WBV-TT group performed 6 types of exercises on a vibrating platform for 4.5 minutes and then walked on the treadmill for 20 minutes. The participants in the TT group conducted the same exercise on a platform without vibration and then walked on the treadmill in the same manner. The vibration lasted for 45 seconds in each exercise, and the intervention was performed 3 times weekly for 6 weeks. The treadmill walking speed was gradually increased by 5% in both groups. The outcome measures included the temporospatial parameter of gait (GAITRite(r)) and 6-minute walk test. RESULTS The WBV-TT group showed significant improvements in walking performance with respect to walking speed, cadence, step length, stride length, single-limb support, double-limb support, and 6-minute walk test compared with baseline (p<0.05). Significant improvements were also seen in walking speed, step length, stride length, and double-limb support compared with the TT group (p<0.05). CONCLUSIONS These findings indicate that WBV-TT is more effective than TT for improving walking performance of patients with chronic stroke. PMID- 29031024 TI - Use of a LYSO-based Compton camera for prompt gamma range verification in proton therapy. AB - PURPOSE: A Compton camera (CC), which measures prompt gammas (PGs) emitted during proton therapy, is a potentially useful imaging device for proton range verification. The aim of this study was to evaluate how well the reconstructed PG images obtained from various two-stage CC configurations reproduce the distal falloff of the PG emission. METHODS: We conducted Monte Carlo simulations to evaluate different two-stage CCs positioned orthogonal to a proton pencil beam irradiating a water phantom. The results were compared with those obtained for a three-stage CC. In particular, all detectors were made of lutetium-yttrium orthosilicate (LYSO) crystals. RESULTS: We found that: (a) the position resolution of the detector led to more uncertainty in predicting the depth of maximum emission and distal falloff positions than did the energy resolution of the detector; (b) reducing the thickness of the absorber detector reduces the effect of position resolution on the quality of reconstructed images and improves falloff position estimates; (c) incomplete absorption of PGs can be filtered by restricting incident gamma energies to known PG energy spectral peaks; and (d) there is greater bias and less accuracy in predicting distal falloff positions with the three-stage CC compared with the two-stage CC. CONCLUSIONS: This study demonstrates the feasibility of using various CC designs and event selection methods to improve the imaging of PG rays. In our designed two-stage CCs, the thin LYSO-based absorber can provide better predictions of the distal falloff positions than the thick one. Compared to three-stage CCs, two-stage CCs are less biased and provide more accurate range verification. PMID- 29031025 TI - Measurement Variation and Repeatability of Echocardiographic Variables Used to Estimate Pulmonary Artery Pressure in Dogs. AB - BACKGROUND: Pulmonary hypertension (PH) is an important clinical entity in dogs. Pulmonary hypertension is generally identified based on echocardiographic findings, but measurement variation of the variables most often used in this context has not been reported. OBJECTIVE: To define measurement variation of echocardiographic variables that are used to estimate pulmonary artery pressure. ANIMALS: Four dogs with subclinical tricuspid valve regurgitation were selected from a hospital population. METHODS: Prospective descriptive study - dogs were subject to repeated echocardiographic examination by 2 operators. Each dog was echocardiographically examined 12 times, once by each operator during mornings and afternoons of 3 nonconsecutive days. Measurement variation was defined by coefficients of variation and by mean square errors (MSE) from ANOVA models. Repeatability coefficients (RC) were calculated from MSE. RESULTS: Of 50 within day, between-day, and interoperator coefficients of variation (CVs), 37 were less than 10% and 46 were less than 15%. The range of peak velocity of tricuspid valve regurgitation (VTR) VTR was 1.87-3.34 m/s. Analysis of variance revealed a significant effect (P < 0.05) of operator for 7 of 10 measurements. Within operator/between-day/within-subject and between-operator/between-day/within subject RCs of VTR were, respectively, 0.3 and 0.6 m/s. CONCLUSIONS AND CLINICAL IMPORTANCE: With regard to repeatability, VTR is superior to other methods used for echocardiographic estimation of systolic pulmonary artery pressure. When TR is absent, the acceleration time of pulmonary ejection and the acceleration-to ejection time ratio are alternative measures. A change in VTR exceeding 0.3 m/s might be outside the range of expected within-operator variation. PMID- 29031026 TI - Genome-wide characterization of differential transcript usage in Arabidopsis thaliana. AB - Alternative splicing and the usage of alternate transcription start- or stop sites allows a single gene to produce multiple transcript isoforms. Most plant genes express certain isoforms at a significantly higher level than others, but under specific conditions this expression dominance can change, resulting in a different set of dominant isoforms. These events of differential transcript usage (DTU) have been observed for thousands of Arabidopsis thaliana, Zea mays and Vitis vinifera genes, and have been linked to development and stress response. However, neither the characteristics of these genes, nor the implications of DTU on their protein coding sequences or functions, are currently well understood. Here we present a dataset of isoform dominance and DTU for all genes in the AtRTD2 reference transcriptome based on a protocol that was benchmarked on simulated data and validated through comparison with a published reverse transciptase-polymerase chain reaction panel. We report DTU events for 8148 genes across 206 public RNA-Seq samples, and find that protein sequences are affected in 22% of the cases. The observed DTU events show high consistency across replicates, and reveal reproducible patterns in response to treatment and development. We also demonstrate that genes with different evolutionary ages, expression breadths and functions show large differences in the frequency at which they undergo DTU, and in the effect that these events have on their protein sequences. Finally, we showcase how the generated dataset can be used to explore DTU events for genes of interest or to find genes with specific DTU in samples of interest. PMID- 29031027 TI - Evaluation of Renal Perfusion in Hyperthyroid Cats before and after Radioiodine Treatment. AB - BACKGROUND: Hyperthyroidism and chronic kidney disease (CKD) are common in elderly cats. Consequently, both diseases often occur concurrently. Furthermore, renal function is affected by thyroid status. Because changes in renal perfusion play an important role in functional renal changes in hyperthyroid cats, investigation of renal perfusion may provide novel insights. OBJECTIVES: To evaluate renal perfusion in hyperthyroid cats with contrast-enhanced ultrasound (CEUS). ANIMALS: A total of 42 hyperthyroid cats was included and evaluated before and 1 month after radioiodine treatment. METHODS: Prospective intrasubject clinical trial of contrast-enhanced ultrasound using a commercial contrast agent (SonoVue) to evaluate renal perfusion. Time-intensity curves were created, and perfusion parameters were calculated by off-line software. A linear mixed model was used to examine differences between pre- and post-treatment perfusion parameters. RESULTS: An increase in several time-related perfusion parameters was observed after radioiodine treatment, indicating a decreased blood velocity upon resolution of the hyperthyroid state. Furthermore, a small post-treatment decrease in peak enhancement was present in the renal medulla, suggesting a lower medullary blood volume. CONCLUSIONS AND CLINICAL IMPORTANCE: Contrast-enhanced ultrasound indicated a higher cortical and medullary blood velocity and higher medullary blood volume in hyperthyroid cats before radioactive treatment in comparison with 1-month post-treatment control. PMID- 29031028 TI - Risk Factors for Death in Dogs Treated for Esophageal Foreign Body Obstruction: A Retrospective Cohort Study of 222 Cases (1998-2017). AB - BACKGROUND: Limited data exist describing risk factors for death, and long-term outcomes in dogs with esophageal foreign body (EFB) obstruction. HYPOTHESIS/OBJECTIVES: To evaluate short- and long-term outcomes, and analyze risk factors for death in dogs with EFB obstruction. We hypothesized duration of entrapment and treatment type would affect outcome. ANIMALS: A total of 222 dogs were treated for EFB obstruction at an emergency and referral hospital between March 1998 and March 2017. METHODS: Medical records for dogs with EFB were retrospectively evaluated. RESULTS: Foreign material most frequently was osseous (180/222 [81%]), with distal esophagus the most common location (110/222 [49.5%]). Duration of clinical signs was not associated with risk of death (OR = 1.08, 95% CI 0.99-1.17; P = 0.2). Entrapment was treated by endoscopy (204/222 [91.8%]), surgery after endoscopic attempt (13/222 [5.9%]), and repeat endoscopy after surgery was recommended but declined (5/222 [2.3%]). In-hospital case fatality rate was 11/222 (5%). Risk of death was significantly higher with surgery (OR = 20.1, 95% CI 3.59-112.44; P = 0.001), and 5/5 (100%) of dogs died if undergoing endoscopy after surgery was recommended but declined. Increasing numbers of postprocedural complications (OR = 3.44, CI 2.01-5.91; P < 0.001), esophageal perforation (OR = 65.47, CI 4.27-1004.15; P = 0.003), and postprocedure esophageal hemorrhage (OR = 11.81, CI 1.19-116.77; P = 0.04) increased in-hospital risk of death. Esophageal strictures were reported in 4/189 (2.1%) of survivors available for follow-up. CONCLUSIONS AND CLINICAL IMPORTANCE: Death is uncommon in canine EFB; however, treatment type affects outcome, and these data should be used to guide decision-making in dogs with EFB. PMID- 29031029 TI - Glutathione Peroxidase Activity, Plasma Total Antioxidant Capacity, and Urinary F2- Isoprostanes as Markers of Oxidative Stress in Anemic Dogs. AB - BACKGROUND: Oxidative stress plays a role in the pathophysiology of several diseases and has been documented as a contributor to disease in both the human and veterinary literature. One at-risk cell is the erythrocyte, however, the role of oxidative stress in anemia in dogs has not been widely investigated. HYPOTHESIS/OBJECTIVE: Anemic dogs will have an alteration in the activity of glutathione peroxidase (GPx), a decrease in of total antioxidant capacity (TAC), and an increased concentration of urinary 15-F2 -isoprostanes (F2 -IsoP) when compared to healthy dogs. ANIMALS: 40 client-owned dogs with anemia (PCV <30%) age-matched to 40 client-owned healthy control dogs. METHODS: Prospective, cross sectional study. Whole blood GPx activity, plasma TAC, and urinary F2 isoprostane concentrations were evaluated in each dog and compared between groups. RESULTS: Anemic dogs had significantly lower GPx activity (43.1 * 103 +/- 1.6 * 103 U/L) than did dogs in the control group (75.8 * 103 +/- 2.0 * 103 U/L; P < 0.0001). The GPx activity in dogs with hemolysis (103 +/- 0.8 * 103 U/L) was not significantly different (P = 0.57) than in dogs with nonhemolytic anemia (43.5 * 103 +/- 1.1 * 103 U/L). The TAC concentrations (P = 0.15) and urinary F2 isoprostanes (P = 0.73) did not significantly differ between groups. CONCLUSIONS AND CLINICAL IMPORTANCE: Glutathione peroxidase activity was significantly decreased in anemic dogs indicating oxidative stress. Additional studies are warranted to determine if antioxidant supplementation would improve survival and overall outcome as part of a therapeutic regimen for anemic dogs. PMID- 29031030 TI - Ectopic Bone as a Nidus for Calcium Oxalate Urocystolithiasis in a Cat. AB - A 7-year-old female spayed domestic shorthair cat was referred to the urology service for nonsurgical urocystolith removal. A urolith was attached to the urothelium by ectopic bone. Interventional removal without surgery was successful. Follow-up evaluation 3 years after urolith removal revealed recurrent uroliths, bladder wall mineralization, and marked renal mineralization. This case illustrates the metaplastic potential of the urothelium and that ectopic bone should be included among the pathological factors that promote lithogenesis. PMID- 29031031 TI - RiceAntherNet: a gene co-expression network for identifying anther and pollen development genes. AB - In plants, normal anther and pollen development involves many important biological events and complex molecular regulatory coordination. Understanding gene regulatory relationships during male reproductive development is essential for fundamental biology and crop breeding. In this work, we developed a rice gene co-expression network for anther development (RiceAntherNet) that allows prediction of gene regulatory relationships during pollen development. RiceAntherNet was generated from 57 rice anther tissue microarrays across all developmental stages. The microarray datasets from nine rice male sterile mutants, including msp1-4, ostdl1a, gamyb-2, tip2, udt1-1, tdr, eat1-1, ptc1 and mads3-4, were used to explore and test the network. Among the changed genes, three clades showing differential expression patterns were constructed to identify genes associated with pollen formation. Many of these have known roles in pollen development, for example, seven genes in Clade 1 (OsABCG15, OsLAP5, OsLAP6, DPW, CYP703A3, OsNP1 and OsCP1) are involved in rice pollen wall formation. Furthermore, Clade 1 contained 12 genes whose predicted orthologs in Arabidopsis have been reported as key during pollen development and may play similar roles in rice. Genes in Clade 2 are expressed earlier than Clade 1 (anther stages 2-9), while genes in Clade 3 are expressed later (stages 10-12). RiceAntherNet serves as a valuable tool for identifying novel genes during plant anther and pollen development. A website is provided (https://www.cpib.ac.uk/anther/riceindex.html) to present the expression profiles for gene characterization. This will assist in determining the key relationships between genes, thus enabling characterization of critical genes associated with anther and pollen regulatory networks. PMID- 29031032 TI - The Frequency and Clinical Implications of Bacteriuria in Chronically Paralyzed Dogs. AB - BACKGROUND: Paralysis is a known risk factor for urinary tract infections (UTI), sepsis, and death in paralyzed people, but there are no data available on diagnostic criteria for UTI versus bacteriuria, their frequency, or clinical implications in chronically paralyzed dogs. HYPOTHESIS/OBJECTIVES: That chronically paralyzed dogs suffer frequent bacteriuria causing reduced duration of survival. We documented the frequency of bacteriuria, associated clinical signs, and survival rate in chronically paralyzed dogs. ANIMALS: Forty-seven client-owned dogs paralyzed with no pelvic limb pain perception for >3 months and at least one urine culture (UC) performed. METHODS: Retrospective, observational study. Medical records of dogs meeting inclusion criteria were reviewed for results of UC, urinalysis, and clinical signs. Outcome was compared between dogs with and without bacteriuria. RESULTS: Thirty-five of 47 dogs had at least 1 positive UC, and 13 had recurrent bacteriuria. Rectal temperature and urinalysis results were extracted from records. Fever was present at time of UC in 5 of 68 observations, 2 with and 3 without bacteriuria. Pyuria was significantly associated with positive cultures (P < 0.001), cloudiness was not (P = 0.076). Survival data in 35 dogs (8 dead) showed no association between bacteriuria and survival (P = 0.69). CONCLUSIONS AND CLINICAL IMPORTANCE: Bacteriuria is common in paralyzed dogs but does not cause fever; diagnostic criteria of UTI are unclear. We did not detect an association of bacteriuria with survival, but this needs further confirmation. PMID- 29031033 TI - An Arabidopsis divergent pumilio protein, APUM24, is essential for embryogenesis and required for faithful pre-rRNA processing. AB - Pumilio RNA-binding proteins are largely involved in mRNA degradation and translation repression. However, a few evolutionarily divergent Pumilios are also responsible for proper pre-rRNA processing in human and yeast. Here, we describe an essential Arabidopsis nucleolar Pumilio, APUM24, that is expressed in tissues undergoing rapid proliferation and cell division. A T-DNA insertion for APUM24 did not affect the male and female gametogenesis, but instead resulted in a negative female gametophytic effect on zygotic cell division immediately after fertilization. Additionally, the mutant embryos displayed defects in cell patterning from pro-embryo through globular stages. The mutant embryos were marked by altered auxin maxima, which were substantiated by the mislocalization of PIN1 and PIN7 transporters in the defective embryos. Homozygous apum24 callus accumulates rRNA processing intermediates, including uridylated and adenylated 5.8S and 25S rRNA precursors. An RNA-protein interaction assay showed that the histidine-tagged recombinant APUM24 binds RNAin vitro with no apparent specificity. Overall, our results demonstrated that APUM24 is required for rRNA processing and early embryogenesis in Arabidopsis. PMID- 29031034 TI - [Potential of Using Vitamin D as an Adjuvant Treatment of Malignant Melanoma]. AB - The incidence of malignant melanoma worldwide continues to grow despite the enormous advances in topical and systemic therapy. This increase is recorded regularly even in countries where, as a result of public health campaigns, dermatological examination and subsequent treatment have become more frequent. However, there have been reports of a stable or even decreasing mortality rate that seem to contradict the objective increase in its incidence. The well-known risk factors for malignant melanoma include sunburns and occasional sunbathing, whereas regular sunbathing is associated with a lower incidence. Besides DNA damage, exposure to the sun also results in the synthesis of vitamin D (cholecalciferol) in the skin, which contributes to over 90% of circulating Calcidiol (25 (OH) D) in serum. Current cultural norms (dressing, working indoors, avoiding sun exposure, and dietary choices) affect the serum vitamin D level, resulting in severely low serum levels of vitamin D in some sectors of todays society. Emerging data suggests that mild, unprotected exposure to UV radiation or dietary supplementation with oral vitamin D can reduce cancer mortality. Supplementation with vitamin D or alternatively UV exposure may be regarded as an adjuvant for the treatment of many types of tumors (e.g. tumors of the colon, prostate, and breast). The effect of vitamin D on malignant melanoma may be due to its non-calcemic systemic effects. Additionally, vitamin D may have more pronounced effects locally in the skin because of the unique ability of keratinocytes to synthesize the active form of vitamin D.Key words: malignant melanoma - vitamin D - adjuvant treatment therapy - clinical oncology The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers.Submitted: 7. 10. 2016Accepted: 26. 7. 2017. PMID- 29031035 TI - [Controversy in the Postoperative Treatment of Low-grade Gliomas]. AB - BACKGROUND: The optimal treatment for low-grade gliomas remains controversial. Neurosurgery, radiotherapy, and chemotherapy are the main treatment options. Despite advances in oncology, there are still a lot of uncertainties, and the optimal sequences, combinations, and timings of these procedures have not yet been optimized. It is still unclear whether temozolomide can replace effective, but toxic PCV chemotherapy (procarbazine, lomustine, vincristine) and whether temozolomide can be used upfront alone instead of radiotherapy alone. Mature results from phase III trials (CODEL, EORTC 22033-26033) will provide answers to these questions. Correlative analyses of survival data and molecular marker findings (1p/19q codeletion, IDH1/2 mutation, and MGMT promoter methylation status) are essential. Due to slow progressive nature of the disease, all clinical trials with low-grade gliomas are complicated by the need for long-term follow-up to obtain valid mature data, which makes any new treatment procedures or developments in basic research developed during the course of closed clinical trials difficult to apply in daily clinical practice. An example is the recently published RTOG 9802 study evaluating the role of adjuvant PCV in combination with radiotherapy for the treatment of high-risk low-grade glioma patients where the recruitment of patients was initiated almost two decades ago. Health-related quality of life after treatment of patients with expected long-term survival is also very important and its maintenance is currently the focus of considerable interest. AIM: The main objective of the present review is to summarize the results of key clinical trials and highlight controversial issues that could have an impact on future daily practice. Another aim is to discuss these issues in the light of newly established molecular markers from the new 2016 WHO Classification of Tumors of the Central Nervous System.Key words: glioma - astrocytoma - radiotherapy - temozolomide - PCV - cognition This work was supported by MH CZ - RVO (MMCI, 00209805) and by project of the Ministry of Education, Youths and Sports of the Czech Republic CEITEC 2020 (LQ1601). The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers.Submitted: 21. 2. 2017Accepted: 20. 3. 2017. PMID- 29031036 TI - [The Role of Chemotherapy in the Treatment of Low-grade Gliomas]. AB - BACKGROUND: The standard postsurgical options for low-grade gliomas include watchful waiting or radiotherapy depending on the risk factors for recurrence. The use of chemotherapy for the treatment of this disease is generally controversial, although the recently published results of the first of two large randomized phase III clinical trials (RTOG 9802 a EORTC 22033-26033), focusing on the evaluation of chemotherapy for the upfront treatment of newly diagnosed low grade gliomas, are reassuring in this respect. The long-term results of a RTOG 9802 comparing radiotherapy alone with radiotherapy and six cycles of adjuvant PCV chemotherapy (procarbazine, lomustine, vincristine) in patients with high risk low-grade gliomas will probably have an impact on daily clinical practice. The increase in median overall survival from 7.8 years to 13.3 years, mainly for patients with oligodendrogliomas, is unprecedented, but the toxicity of PCV is too high and molecular marker analysis remains inadequate. It is still unclear whether less toxic temozolomide can replace PCV and whether temozolomide can be used upfront alone instead of with radiotherapy. This question is addressed by the ongoing EORTC 22033-26033 study. The preliminary results show no significant difference in progression-free survival between patients receiving radiotherapy and those receiving temozolomide alone. Treatment with temozolomide was not associated with an improvement in cognitive function compared with treatment with radiotherapy. Despite limited follow-up, the study clearly confirmed the importance of molecular characterization of low-grade gliomas, as currently defined in the new 2016 WHO Classification of Tumors of the Central Nervous System. AIM: The aim of the review is to summarize available information from listed key clinical trials of chemotherapy for low-grade gliomas and draw attention to unresolved issues concerning the use of chemotherapy for the treatment of this disease.Key words: glioma - astrocytoma - chemotherapy - PCV - temozolomide - RTOG 9802 This work was supported by MH CZ - RVO (MMCI, 00209805) and by project of the Ministry of Education, Youths and Sports of the Czech Republic CEITEC 2020 (LQ1601). The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers.Submitted: 21. 2. 2017Accepted: 20. 3. 2017. PMID- 29031037 TI - [Evaluation of Anti-cancer Therapies with Reimbursement Limited to Comprehensive Cancer Centres Using the European Society for Medical Oncology Magnitude of Clinical Benefit Scale]. AB - BACKGROUND: The costs of oncology treatments are increasing, due to the rising prevalence of malignant diseases and the introduction of expensive novel anti cancer agents. The new European Society for Clinical Oncology (ESMO) has recently developed a new parametric system to evaluate the clinical benefit of drugs. The Magnitude of Clinical Benefit Scale (ESMO-MCBS) compares the contribution of a novel drug based on overall and progression-free survival and quality of life with those of current treatment options. MATERIAL AND METHODS: An expert group of the Czech Oncological Society conducted an assessment based on published data and an ESMO-MCBS methodology for antineoplastic agents used for the treatment of solid tumors with limited reimbursement to Comprehensive Cancer Centers. We evaluated drugs categorized as "S" that were eligible for public health insurance as of January 1, 2017. RESULTS AND CONCLUSION: The ESMO-MCBS score is a promising new parameter for the evaluation of new anticancer drugs. The ESMO-MCBS method for assessing the clinical benefit of drugs is simple, robust, and reproducible. The advantage of the assessment is that it is not based on a single index but rather combines several dimensions of drug performance. This parameter will be gradually added to Czech cancer guidelines. Scores obtained in the majority of cases correspond to the observed benefit of a drug in routine clinical practice.Key words: tumors - farmacotherapy - assesment study as a subject - survival - protocols of anti-cancer therapy The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers.Submitted: 3. 5. 2017Accepted: 20. 6. 2017. PMID- 29031038 TI - Isocitrate Dehydrogenase Mutations are Better Prognostic Marker than O6 methylguanine-DNA Methyltransferase Promoter Methylation in Glioblastomas - a Retrospective, Single-centre Molecular Genetics Study of Gliomas. AB - BACKGROUND: Mutations in isocitrate dehydrogenase 1 and 2 (IDH1/2) are a promising prognostic biomarker of gliomas. The purpose of our study was to examine the clinical prognostic properties of IDH1/2 mutations in a glioma patient cohort from the Czech Republic using an improved platform for simple and reliable IDH genotyping. MATERIAL AND METHODS: We retrospectively analyzed a group of 145 glioma patients by testing for the three most frequent IDH mutations, IDH1 R132H, IDH1 R132C, and IDH2 R172K, through the competitive amplification of differentially melting amplicons (CADMA) polymerase chain reaction (PCR). O6-methylguanine-DNA methyltransferase (MGMT) promoter methylation, copy number of EGFR, p53, RB1, MDM2, CDKN2A genes, and deletions in 1p, 19q and 10p chromosomal regions were also analyzed and correlated with clinical characteristics. RESULTS: Of 145 gliomas, 36 harbored IDH1 R132H mutation and 1 IDH1 R132C mutation. We did not detect any IDH2 R172K mutation. IDH1 mutations were positively associated with MGMT methylation (OR 3.08, 95% CI 1.387-7.282; p = 0.007), 1p/19q co-loss (OR 8.85, 95% CI 2.367-42.786; p = 0.002) and negatively associated with epidermal growth factor receptor amplification (OR 0.12, 95% CI 0.019-0.437; p = 0.006) and 10p loss (OR 0.09, 95% CI 0.005-0.436; p = 0.019). The overall survival of IDH-mutant was 25 months, but only 9 months in IDH-wild type gliomas (p = 0.035); at the same time, survival associated with methylated vs. unmethylated MGMT promoter did not significantly differ (p = 0.166). CONCLUSION: Despite IDH1 mutations being closely associated with MGMT methylation in glioma patients, IDH1 mutations in glioblastoma patients are stronger marker of overall survival than MGMT methylation and should be the marker of choice, especially when using genotyping by CADMA PCR.Key words: isocitrate dehydrogenase - polymerase chain reaction - glioma - glioblastoma. PMID- 29031039 TI - The Anti-apoptotic Mechanism of Metformin Against Apoptosis Induced by Ionizing Radiation in Human Peripheral Blood Mononuclear Cells. AB - BACKGROUND: In a previous article, we showed that metformin (MET) can reduce ionizing radiation (IR) induced apoptosis in human peripheral blood mononuclear cells. However, the anti-apoptotic mechanism of MET against IR remains unclear. The present study attempts to investigate the mechanism of action of MET in limiting X-ray induced apoptosis in human peripheral blood mononuclear cells. MATERIAL AND METHODS: Mononuclear cells were treated with MET for 2 hours and irradiated with 6 MV X-rays. The gene expression levels of BAX, CASP3 and BCL2 were determined 24 hours post irradiation using real time quantitative polymerase chain reaction (qPCR) technique. Furthermore, the protein levels of BAX, CASP3 and BCL2 were analyzed by Western blotting assay. RESULTS: Radiation exposure increased the expressions of BAX and CASP3 genes, and decreased the expression of BCL2 gene in mononuclear cells. Conversely, an increase in BCL2 gene expression along with a decrease in BAX and CASP3 genes expression was observed in MET plus irradiated mononuclear cells. It was found that radiation increased BAX/BCL2 ratio, while MET pretreatment reduced these ratios. Also, treatment with MET without irradiation did not change the expressions of BAX, CASP3 and BCL2 genes. On the other hand, downregulated expression of BCL2 protein and upregulated expressions of BAX and CASP3 proteins were found in 2 Gy irradiated mononuclear cells, while pretreatment with MET significantly reversed this tendency. CONCLUSION: These results suggest that MET can protect mononuclear cells against apoptosis induced by IR through induction of cellular anti-apoptotic signaling.Key words: ionizing radiation - metformin - apoptosis - genes - proteins - blood cells. PMID- 29031040 TI - [Treatment Refusal in Pediatric Oncology]. AB - BACKGROUND: Pediatric oncologists are often faced with situations in which parents or guardians refuse recommended treatment for curable childhood cancer. Deciding how to proceed in such situations is an ethical dilemma. The aim of this article is to consider optimal approaches when parents are strongly against oncological treatment, potentially compromising their childrens rights for health care and to the chance for cure. CASES: In this paper, we report two cases of treatment refusal from our department and the impact of such decisions on the children themselves. Case no. 1 describes a child with retinoblastoma whose parents refused standard treatment in order to seek alternative treatment abroad. Case no. 2 describes a patient with a primary lymphoma of bone who received treatment by a court order after parental refusal. CONCLUSION: When parents refuse a treatment for potentially curable cancer, the medical team often focuses on the certainty of death without treatment. In the background, there is a smaller but still significant risk that - even if the treatment is eventually accepted or compelled - the child will still die from treatment-related complications or refractory disease, possibly with considerable suffering. The reasons for refusing a treatment vary. The entire medical team is tasked with trying to respectfully understand the reasoning behind the parents unwillingness to accept the treatment, in order to address all possible misunderstandings and to propose solutions that could be acceptable for the parents. In some situations however, it is necessary to resolve the dilemma by legal means in order to protect the life of the child.Key words: oncology - ethics - decision making - treatment refusal - legal guardians The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers.Submitted: 7. 8. 2017Accepted: 7. 9. 2017. PMID- 29031041 TI - Concept Analysis of Growth Failure in Preterm Infants in the NICU. AB - Growth failure has not been consistently defined for preterm infants, which contributes to unclear clinical guidelines for optimal growth and development. Therefore, the purpose of this concept analysis was to identify all uses and attributes of the concept, present model and contrary cases, identify antecedents and consequences, define empirical referents, and provide an operational definition of growth failure among preterm infants in the NICU. PMID- 29031043 TI - Comment on "Sphincter-Sparing Excision and Reconstruction Using Facial Artery Perforator Flaps for Lower Lip Carcinoma" by Aksam et al. PMID- 29031042 TI - Humoral and cellular immune response of mice challenged with Yersinia pestis antigenic preparations. AB - OBJECTIVES: The plague, which is an infectious disease caused by Yersinia pestis, still threatens many populations in several countries. The worldwide increase in human plague cases and the potential use of the bacteria as a biological weapon reinforce the need to study the immunity that is induced by potential vaccine candidates. To determine the immunogenicity of antigenic preparations based on the F1 protein and the total extract from Y. pestis, we assessed the role of these antigens in inducing an immune response. METHODS: The immunogenicity of antigenic preparations based on the Y. pestis (YP) total extract and the Y. pestis fraction 1 capsular antigen protein (F1) was determined in Swiss-Webster mice immunized with 40MUg or 20MUg for each preparation. Immunophenotyping was performed by flow cytometry. RESULTS: Animals immunized with the YP total extract did not elicit detectable anti-F1 antibodies (Ab) in the hemaglutination/inhibition (HA/HI) test. Animals immunized with 40MUg or 20MUg of the F1 protein produced anti-F1 Abs, with titres ranging from 1/16 to 1/8132. The average of CD3+-CD4+ and CD3+-CD8+ T cells did not differ significantly between the groups. Neither YP total extract nor F1 protein induced a significant expression of IFN-gamma and IL-10 in CD4+ T lymphocytes. In addition, F1 failed to induce IFN-gamma expression in CD8+ T cells, unlike the YP total extract. CONCLUSION: The results showed that F1 protein is not an immunogenic T cell antigen, although the YP total extract (40MUg dose) favoured CD8+ T cell-mediated cellular immunity. PMID- 29031044 TI - The archaic roles of the lamprey NF-kappaB (lj-NF-kappaB) in innate immune responses. AB - The nuclear factor-kappa B (NF-kappaB) is a pleiotropic transcription factor regulating the expression of genes involved in various biological processes including the immune response and inflammation. Lamprey is regarded as a key species to provide meaningful clues for understanding the evolution of immune system; nevertheless, no information about lamprey NF-kappaB is reported. Thus, we have characterized a NF-kappaB homolog in lamprey (lj-NF-kappaB) for the deeper understanding of the role it played in lamprey immune system. The sequence and 3D structure analyses demonstrate that lj-NF-kappaB contained a Rel homology domain (RHD) and seven ankyrin repeats domains (ANKs), which would exhibit functional similarities to NF-kappaB superfamily proteins. This hypothesis was further proved by experiments. We found that the RHD of lj-NF-kappaB could interact with a mammalian kappaB response element, translocate to the nucleus to modulate gene (IL-6, IL-1beta and TNF-alpha) expression, and the nuclear localization signals (NLS) was essential for the nuclear translocation. Furthermore, the ANKs of lj-NF-kappaB are the inhibition signal for the RHD of lj NF-kappaB. The present results allow us to surmise that the lj-NF-kappaB should play a key role in immune response of lamprey, and the function of NF-kappaB has been maintained during evolution. PMID- 29031046 TI - Contributors to young drivers' driving styles - A comparison between Israel and Queensland. AB - Among the numerous factors that contribute to young novice drivers' driving styles, personality characteristics, sociodemographic variables, family atmosphere, and friends' norms are known to have an important impact. However, cross-cultural comparisons are relatively rare in the safety literature concerning young drivers. This study aimed at comparing young drivers from Israel and Queensland (Australia) and examining the contribution of personality, sociodemographic, family and friends' aspects to their driving styles (reckless and careless; hostile and angry; anxious; patient and careful). More specifically, this study examined the associations between young drivers' driving style and their perceptions of separation-individuation, the family climate for road safety, and the safe driving climate among friends. We also examined sociodemographic and driving history variables such as gender, the marital status of parents, and personal exposure to traffic crashes. The study consisted of two samples of male and female young drivers (age 17-22) from Israel (n=160) and Queensland (n=160), who completed a set of valid and reliable self-report questionnaires. Findings indicate that in general, maladaptive driving styles are associated with lower family tendency to engage in promoting road safety, higher pressure and costs of driving with peers, and unhealthier separation individuation aspects. The opposite is observed for the patient and careful driving style that relates to higher engagement of the family in road safety, lower pressure from friends, and healthier separation-individuation. Some differences were found regarding specific styles between the two samples. In addition, women scored lower than men in the reckless and careless style, and higher (in the Israeli sample) in the anxious as well as the patient and careful styles. Overall, similarities in the associations between the study variables in the samples exceed the differences, and the importance of examining variables on multi-levels when referring to young drivers' driving styles, is confirmed. The findings attest to the universal utility of the MDSI, together with the understanding that only a wider examination of personal and environmental contributors enables true insights into the complex behavior of driving among young drivers. PMID- 29031045 TI - Structural characterization of the Man5 glycoform of human IgG3 Fc. AB - Immunoglobulin G (IgG) consists of four subclasses in humans: IgG1, IgG2, IgG3 and IgG4, which are highly conserved but have unique differences that result in subclass-specific effector functions. Though IgG1 is the most extensively studied IgG subclass, study of other subclasses is important to understand overall immune function and for development of new therapeutics. When compared to IgG1, IgG3 exhibits a similar binding profile to Fcgamma receptors and stronger activation of complement. All IgG subclasses are glycosylated at N297, which is required for Fcgamma receptor and C1q complement binding as well as maintaining optimal Fc conformation. We have determined the crystal structure of homogenously glycosylated human IgG3 Fc with a GlcNAc2Man5 (Man5) high mannose glycoform at 1.8A resolution and compared its structural features with published structures from the other IgG subclasses. Although the overall structure of IgG3 Fc is similar to that of other subclasses, some structural perturbations based on sequence differences were revealed. For instance, the presence of R435 in IgG3 (and H435 in the other IgG subclasses) has been implicated to result in IgG3 specific properties related to binding to protein A, protein G and the neonatal Fc receptor (FcRn). The IgG3 Fc structure helps to explain some of these differences. Additionally, protein-glycan contacts observed in the crystal structure appear to correlate with IgG3 affinity for Fcgamma receptors as shown by binding studies with IgG3 Fc glycoforms. Finally, this IgG3 Fc structure provides a template for further studies aimed at engineering the Fc for specific gain of function. PMID- 29031047 TI - Reducing the threat of wildlife-vehicle collisions during peak tourism periods using a Roadside Animal Detection System. AB - Roadside Animal Detection Systems (RADS) aim to reduce the frequency of wildlife vehicle collisions. Unlike fencing and wildlife passages, RADS do not attempt to keep animals off the road; rather, they attempt to modify driver behavior by detecting animals near the road and warning drivers with flashing signs. A RADS was installed in Big Cypress National Park (Florida, USA) in 2012 in response to an increased number of Florida panther mortalities. To assess driver response, we measured the speed of individual cars on the road when the RADS was active (flashing) and inactive (not flashing) during the tourist season (November-March) and the off-season (April-October), which vary dramatically in traffic volume. We also used track beds and camera traps to assess whether roadside activity of large mammal species varied between seasons. In the tourist season, the activation of the RADS caused a significant reduction in vehicle speed. However, this effect was not observed in the off-season. Track and camera data showed that the tourist season coincided with peak periods of activity for several large mammals of conservation interest. Drivers in the tourist season generally drove faster than those in the off-season, so a reduction in speed in response to the RADS is more beneficial in the tourist season. Because traffic volume and roadside activity of several species of conservation interest both peak during the tourist season, our study indicates that the RADS has the potential to reduce the number of accidents during this period of heightened risk. PMID- 29031048 TI - Trends in perinatal health in metropolitan France from 1995 to 2016: Results from the French National Perinatal Surveys. AB - OBJECTIVE: To study trends in the main indicators of perinatal health, medical practices and risk factors in France since 1995. POPULATION AND METHOD: All live births during one week in 1995 (n=13,318), 2003 (n=14,737), 2010 (n=14,903) and 2016 (n=13,384). Data were from interviews of women in postpartum wards and from medical records and were compared between years. RESULTS: Between 1995 and 2016, maternal age and body mass index increased steadily. Pregnancies that occurred with use of contraception increased from 7.4% in 2010 to 9.3% in 2016. Smoking during pregnancy (16.6%) did not decrease since 2010. The frequency of more than three ultrasounds during pregnancy was 48.5% in 1995 and 74.7% in 2016. Deliveries in large public hospitals increased steadily. The caesarean section rate has been relatively stable since 2003 (20.4% in 2003, 21.1% in 2010 and 20.4% in 2016). The rate of induction of labour was 22% in 2010 and 2016. Overall, 83.8% of women had epidural analgesia/anaesthesia in 2016. Rates of pre term birth in 2016 ranged from 7.5% among all live births to 6.0% among live born singletons; for singletons, this rate increased steadily from 1995 to 2016, whereas there was no clear trend for low birth weight. Exclusive breastfeeding decreased from 60.3% in 2010 to 52.2% in 2016. CONCLUSION: Routine national perinatal surveys highlight successful policies and recommendations but also point out some health indicators, practices, preventive behaviours and risk factors that need special attention. PMID- 29031050 TI - Paraquat affects mitochondrial bioenergetics, dopamine system expression, and locomotor activity in zebrafish (Danio rerio). AB - The dipyridyl herbicide paraquat induces oxidative stress in cells and is implicated in adult neurodegenerative diseases. However, less is known about paraquat toxicity in early stages of vertebrate development. To address this gap, zebrafish (Danio rerio) embryos were exposed to 1, 10 and 100 MUM paraquat for 96 h. Paraquat did not induce significant mortality nor deformity in embryos and larvae, but it did accelerate time to hatch. To evaluate whether mitochondrial respiration was related to earlier hatch times, oxygen consumption rate was measured in whole embryos. Maximal respiration of embryos exposed to 100 MUM paraquat for 24 h was reduced by more than 70%, suggesting that paraquat negatively impacts mitochondrial bioenergetics in early development. Based upon this evidence for mitochondrial dysfunction, transcriptional responses of oxidative stress- and apoptosis-related genes were measured. Fish exposed to 1 MUM paraquat showed higher expression levels of superoxide dismutase 2, heat shock protein 70, Bcl-2-associated X protein, and B-cell CLL/lymphoma 2a compared to control fish. No differences among groups were detected in larvae exposed to 10 and 100 MUM paraquat, suggesting a non-monotonic response. We also measured endpoints related to larval behavior and dopaminergic signaling as paraquat is associated with degeneration of dopamine neurons. Locomotor activity was stimulated with 100 MUM paraquat and dopamine transporter and dopamine receptor 3 mRNA levels were increased in larvae exposed to 1 MUM paraquat, interpreted to be a compensatory response at lower concentrations. This study improves mechanistic understanding into the toxic actions of paraquat on early developmental stages. PMID- 29031049 TI - Heart valve scaffold fabrication: Bioinspired control of macro-scale morphology, mechanics and micro-structure. AB - Valvular heart disease is currently treated with mechanical valves, which benefit from longevity, but are burdened by chronic anticoagulation therapy, or with bioprosthetic valves, which have reduced thromboembolic risk, but limited durability. Tissue engineered heart valves have been proposed to resolve these issues by implanting a scaffold that is replaced by endogenous growth, leaving autologous, functional leaflets that would putatively eliminate the need for anticoagulation and avoid calcification. Despite the diversity in fabrication strategies and encouraging results in large animal models, control over engineered valve structure-function remains at best partial. This study aimed to overcome these limitations by introducing double component deposition (DCD), an electrodeposition technique that employs multi-phase electrodes to dictate valve macro and microstructure and resultant function. Results in this report demonstrate the capacity of the DCD method to simultaneously control scaffold macro-scale morphology, mechanics and microstructure while producing fully assembled stent-less multi-leaflet valves composed of microscopic fibers. DCD engineered valve characterization included: leaflet thickness, biaxial properties, bending properties, and quantitative structural analysis of multi photon and scanning electron micrographs. Quasi-static ex-vivo valve coaptation testing and dynamic organ level functional assessment in a pressure pulse duplicating device demonstrated appropriate acute valve functionality. PMID- 29031051 TI - 17beta-Estradiol induces cyto-genotoxicity on blood cells of common carp (Cyprinus carpio). AB - 17beta-Estradiol, a natural hormone present at high concentrations in aquatic ecosystems, affects and modifies endocrine function in animals. In recent years research workers have expressed concern over its potential effects on aquatic organisms; however, little is known about its capacity to induce genetic damage or the pro-apoptotic effects of such damage on fish. Therefore, this study aimed to evaluate 17beta-estradiol-induced cyto-genotoxicity in blood cells of the common carp Cyprinus carpio exposed to different concentrations (1 ng, 1 MUg and 1 mg L-1). Peripheral blood samples were collected and evaluated by comet assay, micronucleus test, determination of caspase-3 activity and TUNEL assay at 12, 24, 48, 72 and 96 h of exposure. Increases in frequency of micronuclei, TUNEL positive cells and caspase-3 activity were observed, particularly at the highest concentration. In contrast, the comet assay detected significant increases at 24 and 96 h with the 1 MUg and 1 ng L-1 concentrations respectively. The set of assays used in the present study constitutes a reliable early warning biomarker for evaluating the toxicity induced by this type of emerging contaminants on aquatic species. PMID- 29031052 TI - Dispersibility and biotransformation of oils with different properties in seawater. AB - Dispersants are used to remove oils slicks from sea surfaces and to generate small oil-droplet dispersions, which may result in enhanced biodegradation of the oil. In this study, dispersibility and biodegradation of chemically dispersed oils with different physical-chemical properties (paraffinic, naphthenic and asphaltenic oils) were compared in natural temperate SW at 13 degrees C. All selected oils were chemically dispersible when well-known commercial dispersants were used. However, interfacial tension (IFT) studies of the dispersed oils showed different IFT properties of the oils at 13 degrees C, and also different leaching of the dispersants from oil droplet surfaces. Biodegradation studies of the chemically dispersed oils were performed in a carousel system, with initial median droplet sizes <30 MUm and oil concentrations of 2.5-2.8 mg/L. During biodegradation, oil droplet concentrations were rapidly reduced, in association with the emergence of macroscopic 'flocs'. Biotransformation results showed that half-lives of semivolatile total extractable organic carbon (TEOC), single target 2- to 4-ring PAH, and 22 oil compound groups used as input data in the oil spill contingency model OSCAR, did not differ significantly between the oils (P > 0.05), while n-alkanes half-lives differed significantly (P < 0.05). Biotransformation was associated with rapid microbial growth in all oil dispersions, in association with n-alkane and PAH biotransformation. These results have implications for the predictions of biodegradation of oil slicks treated with dispersants in temperate SW. PMID- 29031053 TI - Enhanced degradation and mineralization of 4-chloro-3-methyl phenol by Zn-CNTs/O3 system. AB - A novel zinc-carbon nanotubes (Zn-CNTs) composite was prepared, characterized and used in O3 system for the enhanced degradation and mineralization of chlorinated phenol. The Zn-CNTs was characterized by SEM, BET and XRD, and the degradation of 4-chloro-3-methyl phenol (CMP) in aqueous solution was investigated using Zn CNTs/O3 system. The experimental results showed that the rate constant of total organic carbon (TOC) removal was 0.29 min-1, much higher than that of only O3 system (0.059 min-1) because Zn-CNTs/O2 system could generate H2O2 in situ, the concentration of H2O2 could reach 156.14 mg/L within 60 min at pH 6.0. The high mineralization ratio of CMP by Zn-CNTs/O3 occurred at wide pH range (3.0-9.0). The increase of Zn-CNTs dosage or gas flow rate contributed to the enhancement of CMP mineralization. The intermediates of CMP degradation were identified and the possible degradation pathway was tentatively proposed. PMID- 29031054 TI - Magnetic biochar catalyst derived from biological sludge and ferric sludge using hydrothermal carbonization: Preparation, characterization and its circulation in Fenton process for dyeing wastewater treatment. AB - To solve sludge disposal and management problems during dyeing wastewater treatment, the produced excess biological sludge and ferric sludge were fabricated into a magnetic biochar composite (MBC) under the optimal hydrothermal carbonization (HTC) conditions. With ferric sludge mixing, the generated MBC contained paramagnetic Fe3O4, showed a smaller diameter of approximately 200 nm, a smaller pore size, a larger specific surface area and a higher carbonization degree than BC prepared using a single biological sludge process under the same HTC conditions. Additionally, biochar and Fe3O4 in the MBC were found to be tightly combined through chemical bonding, imparting MBC with its own property of magnetic recycling. The stable high Methylene Blue (MB) degradation performance in a Fenton reaction after recycling designated it as a good catalyst. The MB degradation pathway was proposed based on GC-MS results. When the MBC was used to treat actual dyeing wastewater through a Fenton process, the chemical oxygen demand (COD) and total organic carbon (TOC) removal efficiencies reached 47 +/- 3.3% and 49 +/- 2.7%, respectively. Therefore, MBC could be recycled as a catalyst in dyeing wastewater treatment. And a methodology is described that minimizes the produced sludge and enables sludge internal recycling in a dyeing wastewater treatment plant. PMID- 29031055 TI - Iron chloride catalysed PCDD/F-formation: Experiments and PCDD/F-signatures. AB - Iron chloride is often cited as catalyst of PCDD/F-formation, together with copper chloride. Conversely, iron chloride catalysis has been less studied during de novo tests. This paper presents such de novo test data, derived from model fly ash incorporating iron (III) chloride and established over a vast range of temperature and oxygen concentration in the gas phase. Both PCDD/F-output and its signature are extensively characterised, including homologue and congener profiles. For the first time, a complete isomer-specific analysis is systematically established, for all samples. Special attention is paid to the chlorophenols route PCDD/F, to the 2,3,7,8-substituted congeners, and to their relationship and antagonism. PMID- 29031056 TI - Physiological and biochemical responses of wheat (Triticum aestivum L.) seedlings to three imidazolium-based ionic liquids in soil. AB - Ionic liquids (ILs) are considered environmentally friendly solvents and are widely applied in various fields; however, some researchers have noted the toxicity of ILs to plants cultivated in nutrient solution. To evaluate the toxicities of ILs to wheat seedlings in soil, the natural growth environment of plants, a study was performed using three imidazolium-based ionic liquids with different anions: 1-octyl-3-methylimidazolium chloride ([C8mim]Cl), 1-octyl-3 methylimidazolium bromide ([C8mim]Br) and 1-octyl-3-methylimidazolium tetrafluoroborate ([C8mim]BF4). After 13 d of exposure to these three ILs at 0, 100, 200, 400, 600 and 800 mg kg-1 in brown soil, wheat seedlings were randomly sampled to evaluate growth (shoot length, root length, pigment content and proline content), lipid peroxidation, oxygen species (H2O2 and O2-) and activities of the detoxification enzyme glutathione-s-transferase and other antioxidant enzymes, including superoxide dismutase, catalase and peroxidase. The experimental results showed that all three ILs had inhibitory effects on the growth of wheat seedlings and induced the generation of reactive oxygen species, which indicated that the wheat seedlings suffered oxidative stress. Moreover, antioxidant enzyme activity was enhanced after exposure to [C8mim]Cl, [C8mim]Br and [C8mim]BF4, demonstrating that oxidative damage may be the primary underlying mechanism of IL toxicity in wheat. PMID- 29031057 TI - Arsenic speciation in fish and shellfish from the North Sea (Southern bight) and Acu Port area (Brazil) and health risks related to seafood consumption. AB - In North Sea and Port Acu (Brazil) coastal areas, high arsenic (As) concentrations were observed in water, soil and sediments. Therefore, the impact of this contamination on fish and shellfish species bought from local fishermen was studied. Total As was assessed with ICP-OES (Brazil) and ICP-MS (North Sea) after microwave digestion. Toxic As was assessed with liquid chromatography-ICP MS (Brazil) and hydride generation-atomic fluorescence spectrometry (North Sea). All analytical methods comply with Quality Assurance/Quality Control procedures. Several fish species have average Total As concentrations above 1 MUg g-1 wet weight (ww), but the highest concentrations are found in less spotted dogfish, lemon sole and whelks from the North Sea, with respectively 50, 49 and 50 MUg g-1 ww. High Total As concentrations correspond to high Toxic As concentrations, except for scallops having increased Toxic As concentrations. Toxic As fractions are highest in scallops (almost 10%) but rarely exceeds 2% in all other species. Liver samples were only analyzed in ray, dogfish and catfish and their Toxic As fractions are between 2 and 4 times higher than in muscle. For a consumption of 150 g of seafood, only 3 samples exceed the provisional total daily intake of 2 MUg kg-1 bw, however, cancer risks are non-negligible. Using mean Toxic As concentrations for each of the different fish and shellfish species studied, Lifetime Cancer Risk values at the actual global seafood consumption rate of 54 g day-1 are above 10-4 for whelks, scallops, dogfish, ray and lemon sole. PMID- 29031058 TI - Trimethoprim degradation by Fenton and Fe(II)-activated persulfate processes. AB - Trimethoprim is a pollutant ubiquitous in the environment due to its extensive application, and it cannot be effectively removed by conventional wastewater treatment processes. In this study, the Fenton and the Fe(II)-activated persulfate processes were employed to degrade trimethoprim in an aqueous solution. The results showed that the concentration of persulfate, H2O2 and Fe(II) a had significant influence on the degradation of trimethoprim in both processes. De-ionized water spiked with trimethoprim resulted in the complete degradation of trimethoprim (0.05 mM) by the mineralization of 54.9% of Fenton's reagent when the concentrations of H2O2 and Fe(II) were 1 mM and 0.05 mM, respectively. In contrast, 73.4% of trimethoprim was degraded by the mineralization of 40.5% of the Fe(II)-activated persulfate process when the concentration of persulfate and Fe(II) were each 4 mM. Intermediate compounds with different m/z were detected for the Fenton and the Fe(II)-activated persulfate processes, indicating alternative degradation pathways. In the actual wastewater spiked with trimethoprim, the removal efficiency of trimethoprim decreased to 35.8% and 43.6%, respectively, for the Fenton and the Fe(II) activated persulfate processes. In addition, the decomposition efficiencies for hydrogen peroxide and persulfate were 43.8% and 92.5%, respectively, which was lower than those in the de-ionized water system. These results demonstrated that wastewater components had a negative influence on trimethoprim degradation and the decomposition of the oxidants (persulfate and H2O2). In summary, the Fe(II) activated persulfate process could be used as an alternative technology for treating trimethoprim-containing wastewater. PMID- 29031059 TI - Tying up tranylcypromine: Novel selective histone lysine specific demethylase 1 (LSD1) inhibitors. AB - Aberrant expression of lysine specific histone demethylase 1 (LSD1) has been increasingly associated with numerous cancer cells and several proof-of-concept studies are strongly suggestive of its potential as a druggable target. Tranylcypromine (TCP) is an antidepressant originally known to target the monoamine oxidases A and B (MAO-A and MAO-B), which are structurally related to LSD1. A number of TCP derivatives have been identified as potent LSD1 inhibitors, with a handful of them currently being tested in clinical trials. However, thus far the majority of structure-activity relationship studies reported on these TCP derivatives have been mostly limited to the racemates. In this study, we present the SAR data for a novel series of conformationally-restricted TCP-based LSD1 inhibitors, both in their racemic and enantiomerically pure forms. Compounds 18b and 19b were identified as the most potent LSD1 inhibitors within this series, possessing excellent selectivity (>10,000-fold) against MAO-A and MAO-B. These compounds activated CD86 expression on the human MV4-11 AML cells following 10 days of exposure, accompanied with the apparent cytotoxicity. Taken together, these findings are consistent with the pharmacological inhibition of LSD1 and further provide structural insights on the binding modes of these TCP derivatives and their enantiomers at the LSD1. PMID- 29031060 TI - An insight into the biological activities of heterocyclic-fatty acid hybrid molecules. AB - Heterocyclic compounds are the interesting core structures for the development of new bioactive compounds. Fatty acids are derived from renewable raw materials and exhibit various biological activities. Several researchers are amalgamating these two bioactive components to yield bioactive hybrid molecules with some desirable features. Heterocyclic-fatty acid hybrid derivatives are a new class of heterocyclic compounds with a broad range of biological activities and significance in the field of medicinal chemistry. Over the last few years, many research articles emphasized the significance of heterocyclic-fatty acid hybrid derivatives. The present review article focuses the developments in designing and biological evaluation of heterocyclic-fatty acid hybrid molecules. PMID- 29031061 TI - Crassiflorone derivatives that inhibit Trypanosoma brucei glyceraldehyde-3 phosphate dehydrogenase (TbGAPDH) and Trypanosoma cruzi trypanothione reductase (TcTR) and display trypanocidal activity. AB - Crassiflorone is a natural product with anti-mycobacterial and anti-gonorrhoeal properties, isolated from the stem bark of the African ebony tree Diospyros crassiflora. We noticed that its pentacyclic core possesses structural resemblance to the quinone-coumarin hybrid 3, which we reported to exhibit a dual targeted inhibitory profile towards Trypanosoma brucei glyceraldehyde-3-phosphate dehydrogenase (TbGAPDH) and Trypanosoma cruzi trypanothione reductase (TcTR). Following this basic idea, we synthesized a small library of crassiflorone derivatives 15-23 and investigated their potential as anti-trypanosomatid agents. 19 is the only compound of the series showing a balanced dual profile at 10 MUM (% inhibitionTbGAPDH = 64% and % inhibitionTcTR = 65%). In phenotypic assay, the most active compounds were 18 and 21, which at 5 MUM inhibited Tb bloodstream form growth by 29% and 38%, respectively. Notably, all the newly synthesized compounds at 10 MUM did not affect viability and the status of mitochondria in human A549 and 786-O cell lines, respectively. However, further optimization that addresses metabolic liabilities including solubility, as well as cytochromes P450 (CYP1A2, CYP2C9, CYP2C19, and CYP2D6) inhibition, is required before this class of natural product-derived compounds can be further progressed. PMID- 29031063 TI - Anticancer properties of 4-thiazolidinone derivatives depend on peroxisome proliferator-activated receptor gamma (PPARgamma). AB - Peroxisome proliferator-activated receptors (PPARs) play an important role in numerous chronic diseases such as diabetes, obesity, atherosclerosis and cancer, and PPAR modulators are among the approved drugs and drug-candidates for their treatment. The aim of this study was to elucidate the involvement of PPARs in the mechanism of cytotoxic and pro-apoptotic action of novel anticancer 4 thiazolidinone derivatives (Les-2194, Les-3377, Les-3640) and approved 4 thiazolidinones (Rosiglitazone, Pioglitazone) towards the human squamous carcinoma (SCC-15) cell line. Experiments with 4-thiazaolidinone derivatives and PPAR-specific siRNA were conducted and PPARalpha, PPARbeta and PPARgamma mRNA expression was studied. Moreover, after PPARalpha, PPARbeta and PPARgamma siRNA gene silencing, cell viability, cell metabolism and caspase-3 activity were measured. The results showed a decrease of mRNA expression of the studied PPARs in SCC-15 cells treated with 10 and 50 MUM Les-2194, Les-3377 and Les-3640. PPARgamma knockdown protected the cells from the cytotoxic effect of the tested compounds (50 MUM). It was established that novel anticancer 4-thiazolidinone derivatives act mainly through the PPARgamma pathway in SCC-15 cells. Our results suggest that all studied compounds act as PPARs agonists. Interestingly, silencing of PPARgamma gene increases the expression of PPARalpha, PPARbeta mRNA in SCC-15 cells. The anticancer potential of new studied compounds was more expressed as compared to Rosiglitazone and Pioglitazone. PMID- 29031062 TI - Design, synthesis and biological evaluations of N-Hydroxy thienopyrimidine-2,4 diones as inhibitors of HIV reverse transcriptase-associated RNase H. AB - Human immunodeficiency virus (HIV) reverse transcriptase (RT) associated ribonuclease H (RNase H) is the only HIV enzymatic function not targeted by current antiviral drugs. Although various chemotypes have been reported to inhibit HIV RNase H, few have shown significant antiviral activities. We report herein the design, synthesis and biological evaluation of a novel N-hydroxy thienopyrimidine-2,3-dione chemotype (11) which potently and selectively inhibited RNase H with considerable potency against HIV-1 in cell culture. Current structure-activity-relationship (SAR) identified analogue 11d as a nanomolar inhibitor of RNase H (IC50 = 0.04 MUM) with decent antiviral potency (EC50 = 7.4 MUM) and no cytotoxicity (CC50 > 100 MUM). In extended biochemical assays compound 11d did not inhibit RT polymerase (pol) while inhibiting integrase strand transfer (INST) with 53 fold lower potency (IC50 = 2.1 MUM) than RNase H inhibition. Crystallographic and molecular modeling studies confirmed the RNase H active site binding mode. PMID- 29031065 TI - Synthesis and antibacterial activity of new symmetric polyoxygenated dibenzofurans. AB - A series of symmetric polyoxygenated dibenzofurans with 2-methylbutyril moieties at C-4 and C-6 were obtained from commercial phloroglucinol through a sequence of reactions that include monoacylation, iodination, Suzuki-Miyaura coupling, oxidative dimerization and cyclization. Some of the compounds obtained were active against Gram-positive bacteria, including multiresistant Staphylococcus aureus clinical isolates. The dibenzofuran 28 with propyl chains at C-2 and C-8 exhibited the best antibacterial activity with values comparable to those of the natural dibenzofuran achyrofuran. From the obtained results some structure activity relationships were outlined. PMID- 29031064 TI - Fragment-based approach to identify IDO1 inhibitor building blocks. AB - Indoleamine 2,3-dioxygenase 1 (IDO1) is attracting a great deal of interest as drug target in immune-oncology being highly expressed in cancer cells and participating to the tumor immune-editing process. Although several classes of IDO1 inhibitors have been reported in literature and patent applications, only few compounds have proved optimal pharmacological profile in preclinical studies to be advanced in clinical trials. Accordingly, the quest for novel structural classes of IDO1 inhibitors is still open. In this paper, we report a fragment based screening campaign that combines Water-LOGSY NMR experiments and microscale thermophoresis approach to identify fragments that may be helpful for the development of novel IDO1 inhibitors as therapeutic agents in immune-oncology disorders. PMID- 29031066 TI - Serendipitous discovery of potent human head and neck squamous cell carcinoma anti-cancer molecules: A fortunate failure of a rational molecular design. AB - Histone deacetylase inhibitors (HDACis) play an important role as valuable drugs targeted to cancer therapy: several HDACis are currently being tested in clinical trials. Two new potential HDACis 1a and 1d, characterized by the presence of a biphenyl-4-sulfonamide group as a connection unit between the N-{4-[(E)-(2 formylhydrazinylidene)methyl]-3-hydroxyphenyl} and the 2-hydroxy-N (trifluoroacetyl)benzamide moiety, respectively, as two zinc-binding group (ZBG), have been designed, synthesized and tested for their biological activity. Surprisingly, compounds 1a and 12, this last exclusively obtained in place of 1d, exhibited a very low HDAC inhibitory activity. A serendipitous assay of these two compounds, conducted on three chemoresistant cell lines of head and neck squamous cell carcinoma (HNSCC), showed their antiproliferative activity at low nanomolar concentrations, better than cisplatin. In vitro, biological assays indicated that compounds 1a and 12 are able to increase acetylation of histone H3 and to interfere with the PI3K/Akt/mTOR pathway by inducing the accumulation of PTEN protein. PMID- 29031067 TI - New pyridine derivatives as inhibitors of acetylcholinesterase and amyloid aggregation. AB - A new series of pyridine derivatives with carbamic or amidic function has been designed and synthesized to act as cholinesterase inhibitors. The synthesized compounds were tested toward EeAChE and hAChE and toward eqBChE and hBChE. The carbamate 8 was the most potent hAChE inhibitor (IC50 = 0.153 +/- 0.016 MUM) while the carbamate 11 was the most potent inhibitor of hBChE (IC50 = 0.828 +/- 0.067 MUM). A molecular docking study indicated that the carbamate 8 was able to bind AChE by interacting with both CAS and PAS, in agreement with the mixed inhibition mechanism. Furthermore, the carbamates 8, 9 and 11 were able to inhibit Abeta42 self-aggregation and possessed quite low toxicity against human astrocytoma T67 and HeLa cell lines, being the carbamate 8 the less toxic compound on both cell lines. PMID- 29031068 TI - Platinum(IV) prodrugs multiply targeting genomic DNA, histone deacetylases and PARP-1. AB - Several Pt(IV) prodrugs containing SAA, a histone deacetylases inhibitor, were designed and prepared for multiply targeting genomic DNA, histone deacetylases and PARP-1. The resulting Pt(IV) prodrug had significantly strong antiproliferative activity against the tested cancer cell lines, especially SAA1, derived from the conjugation of cisplatin and SAA, had potent ability to overcome cisplatin resistance. Under the combined action of DNA platination and inhibition of HDACs and PARP-1 activity, the cytotoxic activity of SAA1 was 174-fold higher than cisplatin against cisplatin-resistant SGC7901/CDDP cancer cells. The mechanism of action of SAA1 was preliminarily investigated, in which cellular uptake, cell apoptosis and cell cycle arrest as well as western blot analysis were made by treating SAA1 with SGC7901/CDDP cells. Besides, HDACs inhibition activity and PARP-1 enzyme inhibition of SAA1 were also studied. PMID- 29031069 TI - Synthesis and biological evaluation of a Platinum(II)-c(RGDyK) conjugate for integrin-targeted photodynamic therapy. AB - A cancer-targeting conjugate 4 of a cyclometalated [N,C,N-Pt(II)] complex bearing a N^C^N 1,3-di(2-pyridyl)-benzene with c(RGDyK) peptide as guiding molecule was designed and synthesized for real-time drug delivery monitoring in cancer cells and photodynamic therapy (PDT). This conjugate demonstrates a mild cytostatic effect to six cancer cell lines expressing integrins at different extent, while possessing promising features for PDT. Conjugate 4 demonstrated rapid cell uptake by receptor-mediated endocytosis and efficient generation of 1O2 upon irradiation. Incubation of rat bladder cancer cells AY27 with conjugate 4 (50 MUMU) prior to blue light exposure (5 min) resulted in significant reduction (50%) of cell survival compared to control cells as measured by MTT assay post 24 h after treatment. PMID- 29031070 TI - Nature-based molecules combined with rivastigmine: A symbiotic approach for the synthesis of new agents against Alzheimer's disease. AB - Starting from nature as original source, new potential agents with pleiotropic activities have been synthesized and evaluated as neuroprotective agents. In this work, novel nature-based hybrids, combining antioxidant motifs with rivastigmine, have been designed and synthesized. The biological results revealed that the new compounds inhibit both AChE and BuChE. In particular, lipoic acid hybrids LA1, LA2, LA3 resulted to be the most potent inhibitors of BuChE showing IC50 values ranging from 340 to 378 nM. Analogously, all the compounds were able to inhibit the self beta-amyloid1-42 aggregation. The gallic acid hybrid GA2 as well as the 2-chromonecarboxylic acid hybrids CA1 and CA2 prevented the self-mediated Abeta aggregation with percentages of inhibition ranging from 53% to 59%. Finally, some of them also show potent neuroprotective effects against glutamate-induced cell death and low toxicity in HT22 cells. PMID- 29031072 TI - Recent advances in discovery and development of natural products as source for anti-Parkinson's disease lead compounds. AB - Parkinson's disease (PD) is a common chronic degenerative disease of the central nervous system. Although the cause remains unknown, several pathological processes and central factors such as oxidative stress, mitochondrial injury, inflammatory reactions, abnormal deposition of alpha-synuclein, and cell apoptosis have been reported. Currently, anti-PD drugs are classified into two major groups: drugs that affect dopaminergic neurons and anti-cholinergic drugs. Unfortunately, the existing conventional strategies against PD are with numerous side effects, and cannot fundamentally improve the degenerative process of dopaminergic neurons. Therefore, novel therapeutic approaches which have a novel structure, high efficiency, and fewer side effects are needed. For many years, natural products have provided an efficient resource for the discovery of potential therapeutic agents. Among them, many natural products possess anti-PD properties as a result of not only their wellrecognized anti-oxidative and anti inflammatory activities but also their inhibitory roles regarding protein misfolding and the regulatory effects of PD related pathways. Indeed, with the steady improvement in the technologies for the isolation and purification of natural products and the in-depth studies on the pathogenic mechanisms of PD, many monomer components of natural products that have anti-PD effects have been gradually discovered. In this article, we reviewed the research status of 37 natural products that have been discovered to have significant anti-PD effects as well as their mode of action. Overall, this review may guide the design of novel therapeutic drugs in PD. PMID- 29031071 TI - Discovery of thienopyrrolotriazine derivatives to protect mitochondrial function against Abeta-induced neurotoxicity. AB - Recovery of mitochondrial dysfunction has gained increasing attention as an alternative therapeutic strategy for Alzheimer's disease (AD). Recent studies suggested that the 18 kDa mitochondrial translocator protein (TSPO) has the potential to serve as a drug target for the treatment of AD. In this study, we generated a structure-based pharmacophore model and virtually screened a commercial library, identifying SVH07 as a virtual hit, which contained a tricyclic core structure, thieno[2',3':4,5]pyrrolo[1,2-d][1,2,4]triazine group. A series of SVH07 analogues were synthesized and their effects on the mitochondrial membrane potential and ATP production were determined by using neuronal cells under Abeta-induced toxicity. Among these analogues, compound 26 significantly recovered mitochondrial membrane depolarization and ATP production. In vitro binding assays indicated that SVH07 and 26 showed high affinities to TSPO with the IC50 values in a nanomolar range. We believe that compound 26 is a promising lead compound for the development of TSPO-targeted mitochondrial functional modulators with therapeutic potential in AD. PMID- 29031073 TI - Discovery of novel diarylpyrazolylquinoline derivatives as potent anti-dengue virus agents. AB - A number of diarylpyrazolylquinoline derivatives were synthesized and evaluated for their anti-dengue virus (DENV) activity. Among them, 6-fluoro-2-(1-(4 fluorophenyl)-3- (4-methoxyphenyl)-1H-pyrazol-5-yl)quinoline (11c), 2-[1,3-bis(4 methoxyphenyl)-1H-pyrazol- 5-yl]-6-fluoroquinoline (12c), and 4-[5-(6 fluoroquinolin-2-yl)-3-(4-methoxyphenyl)-1H-pyrazol- 1-yl]benzenesulfonamide (13c) exhibited approximately 10-folds more active anti-DENV-2 activity (IC50 of 1.36, 1.09 and 0.81 MUM, respectively) than that of ribavirin (IC50 = 12.61 MUM). Compound 13c was also potent inhibited other sero-types of DENV. It reduced DENV replication in both viral protein and mRNA levels, and no significant cell cytotoxicity was detected, with greater than 50% viability of Huh-7-DV-Fluc cells at a concentration of 200 MUM. Furthermore, compound 13c can effectively protect mice from DENV infection by reducing disease symptoms and mortality of DENV infected mice. It represents a potential antiviral agent to block DENV replication in vitro and in vivo. Structural optimization of the initial lead compound, 13c, and the detailed molecular mechanism of action are ongoing. PMID- 29031074 TI - Synthesis, antiproliferative, anti-tubulin activity, and docking study of new 1,2,4-triazoles as potential combretastatin analogues. AB - Combretastatin A4 (CA4) is a natural product characterized by a powerful inhibition of tubulin polymerization and a potential anticancer activity. However, therapeutic application of CA4 is substantially hindered due to geometric isomerization. In the current study, new cis-restricted Combretastatin A4 analogues containing 1,2,4-triazle in place of the olefinic bond were designed and synthesized. The synthesized compounds were evaluated for their in vitro antiproliferative activity in human hepatocellular carcinoma HepG2 and leukemia HL-60 cell lines using MTT assay. Moreover, fourteen compounds were selected and tested for their antiproliferative activity by the National Cancer Institute. Some of the tested compounds showed moderate activity against sixty cell lines. In vitro tubulin polymerization inhibitory activity was evaluated on HepG2 cells. The assay revealed that 6a showed a remarkable tubulin inhibition compared to CA4. Moreover, the cell cycle analysis revealed significant G2/M cell cycle arrest of the analogue 6c in HepG2 cells. Molecular docking combined with AMBER based molecular mechanical minimization results showed several noncovalent interactions, including van der Waals and hydrogen-bonding with several amino acids within the colchicine binding site of beta-subunit of tubulin. PMID- 29031075 TI - Discovery of new indomethacin-based analogs with potentially selective cyclooxygenase-2 inhibition and observed diminishing to PGE2 activities. AB - New ring-extended analogs of indomethacin were designed based on the structure of active binding site of both COX-1 and COX-2 isoenzymes and the interaction pattern required for selective inhibition of COX-2 to improve its selectivity against COX-2. The strategy adopted for designing the new inhibitors involved i) ring extension of indomethacin to reduce the possibility of analogs to be accommodated into the narrow hydrophobic tunnel of COX-1, ii) deletion of carboxylic acid to reduce the possibility of inhibitor to form salt bridge with Arg120 and eventually prevent COX-1 inhibition, and iii) introduction of methylsulfonyl group to increase the opportunity of the analogs to interact with the polar side pocket that's is crucial for inhibition process of COX-2. The three series of tetrahydrocarbazoles involving 4, 5, 9, 10 and 12 were synthesized in quantitative yields adopting limited number of reaction steps, and applying laboratory friendly reaction conditions. In vitro and in vivo assays for data profiling the new candidates revealed the significant improvement in the potency and selectivity against COX-2 of 6-methoxytetrahydrocarbazole 4 (IC50 = 0.97 MUmol) to verify the effect of ring extension in comparison to indomethacin (IC50 = 2.63 MUmol), and 6-methylsulfonyltetrahydrocarbazole 10a (IC50 = 0.28 MUmol) to verify the effect of ring extension and introduction of methylsulfonyl group. 9-(4-chlorobenzoyl)-6-(methylsulfonyl)-1,2,3,9-tetrahydro-4H-carbazol-4 one 12a showed the most potential and selective activity against COX-2 (IC50 = 0.23 MUmol) to be with superior potency to Celecoxib (IC50 = 0.30 MUmol). Consistently, 12a was the most active with all the other anti-inflammatory test descriptors and its activity in diminishing the PGE2 with the other analogs confirmed the elaboration of new class of selective COX-2 inhibitors beyond the diarylsulfonamides as a previously common class of selective COX-2 inhibitors. Molecular docking study revealed the high binding score of compound 12a (-30.78 kcal/mol), with less clash contribution (7.2) that is close to indomethacin. Also, 12a showed low conformation entropy score (1.40). Molecular dynamic (MD) simulation identified the equilibrium of both potential and kinetic energies. PMID- 29031076 TI - Synthesis and evaluation of new pyridyl/pyrazinyl thiourea derivatives: Neuroprotection against amyloid-beta-induced toxicity. AB - Herein, we report synthesis and evaluation of new twenty six small molecules against beta amyloid (Abeta)-induced opening of mitochondrial permeability transition pore (mPTP) using JC-1 assay which measures the change of mitochondrial membrane potential (DeltaPsim). The neuroprotective effect of seventeen compounds against Abeta-induced mPTP opening was superior to that of the standard Cyclosporin A (CsA). Fifteen derivatives eliciting increased green to red fluorescence percentage less than 40.0% were evaluated for their impact on ATP production, cell viability and neuroprotection against Abeta-induced neuronal cell death. Among evaluated compounds, derivatives 9w, 9r and 9k had safe profile regarding ATP production and cell viability. In addition, they exhibited significant neuroprotection (69.3, 51.8 and 48.2% respectively). Molecular modeling study using CDocker algorithm predicted plausible binding modes explaining the elicited mPTP blocking activity. Hence, this study suggests compounds 9w, 9r and 9k as leads for further development of novel therapy to Alzheimer's disease. PMID- 29031077 TI - 4-Quinolone hybrids and their antibacterial activities. AB - The emergence and wide-spread of drug-resistant bacteria including multi-drug resistant and pan-drug resistant pathogens which are associated with considerable mortality, represent a significant global health threat. 4-Quinolones which are exemplified by fluoroquinolones are the second largest chemotherapy agents used in clinical practice for the treatment of various bacterial infections. However, the resistance of bacteria to 4-quinolones develops rapidly and spreads widely throughout the world due to the long-term, inappropriate use and even abuse. To overcome the resistance and improve the potency, several strategies have been developed. Amongst them, molecular hybridization, which is based on the incorporation of two or more pharmacophores into a single molecule with a flexible linker, is one of the most practical approaches. This review aims to summarize the recent advances made towards the discovery of 4-quinolone hybrids as potential antibacterial agents as well as their structure-activity relationship (SAR). The enriched SAR may pave the way for the further rational development of 4-quinolone hybrids with excellent potency against both drug susceptible and drug-resistant bacteria. PMID- 29031078 TI - Structural design, synthesis and pharmacological evaluation of thiazoles against Trypanosoma cruzi. AB - Chagas disease is one of the most significant health problems in the American continent. benznidazole (BDZ) and nifurtimox (NFX) are the only drugs approved for treatment and exhibit strong side effects and ineffectiveness in the chronic stage, besides different susceptibility among T. cruzi DTUs (Discrete Typing Units). Therefore, new drugs to treat this disease are necessary. Thiazole compounds have been described as potent trypanocidal agents. Here we report the structural planning, synthesis and anti-T. cruzi evaluation of a new series of 1,3-thiazoles (7-28), which were designed by placing this heterocycle instead of thiazolidin-4-one ring. The synthesis was conducted in an ultrasonic bath with 2 propanol as solvent at room temperature. By varying substituents attached to the phenyl and thiazole rings, substituents were observed to retain, enhance or greatly increase their anti-T. cruzi activity. In some cases, methyl at position 5 of the thiazole (compounds 9, 12 and 23) increased trypanocidal property. The exchange of phenyl for pyridinyl heterocycle resulted in increased activity, giving rise to the most potent compound against the trypomasigote form (14, IC50trypo = 0.37 MUM). Importantly, these new thiazoles were toxic for trypomastigotes without affecting macrophages and cardiomyoblast viability. The compounds were also evaluated against cruzain, and five of the most active compounds against trypomastigotes (7, 9, 12, 16 and 23) inhibited more than 70% of enzymatic activity at 10 MUM, among which compound 7 had an IC50 in the submicromolar range, suggesting a possible mechanism of action. In addition, examination of T. cruzi cell death showed that compound 14 induces apoptosis. We also examined the activity against intracellular parasites, revealing that compound 14 inhibited T. cruzi infection with potency similar to benznidazole. The antiparasitic effect of 14 and benznidazole in combination was also investigated against trypomastigotes and revealed that they have synergistic effects, showing a promising profile for drug combination. Finally, in mice acutely-infected with T. cruzi,14 treatment significanty reduced the blood parasitaemia and had a protective effect on mortality. In conclusion, we report the identification of compounds (7), (12), (15), (23) and (26) with similar trypanocidal activity of benznidazole; compounds (9) and (21) as trypanocidal agents equipotent with BDZ, and compound 14 with potency 28 times better than the reference drug without affecting macrophages and cardiomyoblast viability. Mechanistically, the compounds inhibit cruzain, and 14 induces T. cruzi cell death by an apoptotic process, being considered a good starting point for the development of new anti-Chagas drug candidates. PMID- 29031079 TI - A CMT2 family carrying the P7R mutation in the N- terminal region of the HSPB1 gene. PMID- 29031080 TI - Endovascular therapy for vasospasm secondary to subarachnoid hemorrhage: A meta analysis and systematic review. AB - Endovascular therapy has been used as an alternative treatment for vasospasm following subarachnoid hemorrhage. The effectiveness and safety of endovascular therapy are still controversial. We performed a systematic review and meta analysis to identify any advantage of endovascular therapy over traditional medical treatment. We systematically reviewed related English publications by searching PubMed, Ovid, Cochrane library, and Web of Science up to May 2017.The risk ratios (RR) and 95% confidence intervals (CI) were synthesized with fixed effect model. Subgroup analyses and sensitivity analyses were conducted to check the robustness the result. Publication bias was measured with funnel plot. Eight cohort studies were included, receiving a mean score of 7 on the Newcastle-Ottawa Scale. The overall effect (RR 1.01, [95% CI 0.80-1.26]) found no significant difference in the outcome between the endovascular treatment and control groups but with heterogeneity (Chi2=18.07, p=0.01, I2=61%). Subgroup analyses stratified by country, year of publication, treatment modality, follow-up time, and sensitivity analysis by excluding the most biased study yielded the same result (RR 1.19, [95% CI 0.94-1.52]), with rare heterogeneity (Chi2=4.21, p=0.65, I2=0). Funnel plot was visually symmetric in sensitivity analysis. Despite good performance in reversing vasospasm in previous studies, endovascular therapy did not show superiority to traditional medical treatment in improving patient outcomes. Further randomized controlled studies are needed to elucidate this issue. PMID- 29031081 TI - Optimization of the Promega PowerSeqTM Auto/Y system for efficient integration within a forensic DNA laboratory. AB - The application of massively parallel sequencing (MPS) is growing in the forensic DNA field, as forensic DNA laboratories are continuously seeking methods to gain information from a limited or degraded forensic sample. However, the laborious nature of current MPS methodologies required for successful library preparation and sequencing leave opportunities for improvement to make MPS a practical option for processing forensic casework. In this study, the Promega PowerSeqTM Auto/Y System Prototype, a MPS laboratory workflow that incorporates multiplex amplification, was selected for optimization with the objectives to introduce automation for relieving manual processing, and to reduce the number of steps recommended by the standard protocol. Successful changes in the optimized workflow included a switch from column-based PCR purification to automatable bead based purification, adoption of the library preparation procedures by a liquid handling robot platform, and removal of various time-consuming quality checks. All data in this study were found to be concordant with capillary electrophoresis (CE) data and previously-generated MPS results from this workflow. Read abundance and allele balance, metrics related to sample interpretation reliability, were not significantly different when compared to samples processed with the manufacturer's protocol. All the modifications implemented resulted in increased laboratory efficiency, reduced the protocol steps associated with risk of contamination and human error events, and decreased manual processing time by approximately 12h. These findings provide forensic DNA laboratories a more streamlined option when considering implementation of a MPS workflow. PMID- 29031082 TI - Quantum associative memory with linear and non-linear algorithms for the diagnosis of some tropical diseases. AB - This paper presents the QAMDiagnos, a model of Quantum Associative Memory (QAM) that can be a helpful tool for medical staff without experience or laboratory facilities, for the diagnosis of four tropical diseases (malaria, typhoid fever, yellow fever and dengue) which have several similar signs and symptoms. The memory can distinguish a single infection from a polyinfection. Our model is a combination of the improved versions of the original linear quantum retrieving algorithm proposed by Ventura and the non-linear quantum search algorithm of Abrams and Lloyd. From the given simulation results, it appears that the efficiency of recognition is good when particular signs and symptoms of a disease are inserted given that the linear algorithm is the main algorithm. The non linear algorithm helps confirm or correct the diagnosis or give some advice to the medical staff for the treatment. So, our QAMDiagnos that has a friendly graphical user interface for desktop and smart-phone is a sensitive and a low cost diagnostic tool that enables rapid and accurate diagnosis of four tropical diseases. PMID- 29031083 TI - Neural network robust tracking control with adaptive critic framework for uncertain nonlinear systems. AB - In this paper, we aim to tackle the neural robust tracking control problem for a class of nonlinear systems using the adaptive critic technique. The main contribution is that a neural-network-based robust tracking control scheme is established for nonlinear systems involving matched uncertainties. The augmented system considering the tracking error and the reference trajectory is formulated and then addressed under adaptive critic optimal control formulation, where the initial stabilizing controller is not needed. The approximate control law is derived via solving the Hamilton-Jacobi-Bellman equation related to the nominal augmented system, followed by closed-loop stability analysis. The robust tracking control performance is guaranteed theoretically via Lyapunov approach and also verified through simulation illustration. PMID- 29031084 TI - Moving towards the benign: Automatic interpretation bias modification in dysphoria. AB - Automatic cognitive biases are important to theories of depression and reducing such biases may contribute to therapeutic gains. The present study examined (1) whether it was possible to reduce automatic interpretation biases (AIB) in a single session among dysphoric subjects and (2) whether the effects of modifying AIB generalized to other measures of cognition and emotion. 76 dysphoric students completed a modified semantic association paradigm in which they were randomized to receive active or random-feedback-based training. Groups did not differ on AIB at baseline. Compared to the placebo group, the active training group demonstrated decreased endorsement of negative AIB, faster endorsement of benign AIB, and slower rejection of benign AIB. AIB modification generalized to a separate measure of interpretation bias. Further, greater reductions in AIB predicted a more resilient emotional response pattern to a laboratory stressor. Implications of AIB modification for basic and clinical research are discussed. PMID- 29031085 TI - A study on the extrinsic sensitivity and counting efficiency of a gamma camera for a cylindrical source and a rectangular detector. AB - In this work, the extrinsic counting efficiency and extrinsic sensitivity of a cylindrical source and a gamma camera with a rectangular detector were determined using homogeneous Tc-99m. Scattered radiation effects were evaluated by both analyzing the energy spectrum of 99mTc for the scatter fraction and plotting the extrinsic counting efficiency and sensitivity. It is found that the scattered fraction values increased with increasing source thickness. Calculated extrinsic sensitivity shows a gradually decreasing trend with increasing source thickness. The extrinsic efficiency decreases with increasing source thickness. It is concluded that increasing source to detector distances results with increasing extrinsic counting efficiency but decreasing extrinsic sensitivity. PMID- 29031086 TI - Natural iron isotopes influence on the neutron transport. AB - As an iron is the main structural component of nuclear power plants as well as future fusion power plants, the validation of neutron incident data libraries of iron is a must. Presented paper fits into ongoing validation activities and presents measuring neutron leakage spectra in the 0.1-1.0MeV region from iron sphere of 100cm in diameter by hydrogen proportional detectors. The experimental result is compared with ENDF/B-VII.1, JEFF-3.2 and CIELO nuclear data libraries. No library reasonably well describes whole region under study. Furthermore, elastic and inelastic XS sensitivity analysis for all iron isotopes was carried out. 54Fe isotope elastic XS influence is comparable with 56Fe XS influence up to 0.8MeV. 57Fe isotope elastic XS is significant in the region of 0.14-0.15MeV. Additionally, there are large differences among libraries in both elastic and inelastic XS for 57Fe. Furthermore, it was found that 58Fe isotope XS has negligible influence on the results. As a neutron source, 252Cf with initial emission rate of 9.53E8 n/s was used in this experiment. PMID- 29031087 TI - Characterization of the radiosynthesis and purification of [18F]THK-5351, a PET ligand for neurofibrillary tau. AB - This work characterizes the radiochemical synthesis, purification, and formulation of [18F]THK-5351, a tau PET radioligand, and develops an automated radiosynthesis routine (ELIXYS, Sofie Biosciences). Nucleophilic radiofluorination reaction was complete by 7min at 110 degrees C with radiochemical yields proportional to precursor mass (0.1-0.5mg). Optimized HPLC purification produced radiotracer product with no chemical impurities observed on analytical HPLC in formulation. Automated radiosynthesis (ELIXYS), HPLC purification and formulation was completed in 86min producing formulated product suitable for human research use. PMID- 29031090 TI - Recreational drug use and risk of HIV infection among men who have sex with men: A cross-sectional study in Shenzhen, China. AB - BACKGROUND: Recreational drug use has increased in recent years, especially among MSM, and has been found to be associated with higher risk of HIV infection. However, there is limited information about current recreational drug use among MSM in Shenzhen which is an international gateway city to China with a rapidly expanding MSM population. METHODS: A cross-sectional survey among MSM in Shenzhen was conducted and was used to collected information on demographics, sexual behavior and drug use via questionnaires. Serologic results on HIV and syphilis were obtained from laboratory assays. We performed logistic regression analysis to evaluate correlates with drug use. RESULTS: Among the 1935 MSM surveyed, 12.7% reported use of recreational drugs in the past six months. Rush poppers had become the most frequently used drug (10.6%). Risk factors associated with the use of recreational drugs included being unmarried, non-Han ethnicity, having high education level, seeking male sex partners via the internet, having multiple male sex partners, performing receptive role during anal sex, and having unprotected anal intercourse. Recreational drug use was significantly associated with higher risk of both HIV and syphilis infections (aOR:1.89, 95% CI:1.28-2.79; aOR:1.79, 95% CI:1.25-2.60, respectively). CONCLUSIONS: Recreational drug use is associated with increased risk of HIV and syphilis infections among MSM in Shenzhen. Rush poppers were the most popular recreational drug. This finding suggests the need for targeted prevention and behavioral intervention programs to control the recreational drug use, and to reduce HIV and other sexually transmitted diseases among MSM in Shenzhen and internationally. PMID- 29031088 TI - Probing the correlation of neuronal loss, neurofibrillary tangles, and cell death markers across the Alzheimer's disease Braak stages: a quantitative study in humans. AB - Clarifying the mechanisms connecting neurofibrillary tangle (NFT) neurotoxicity to neuronal dysfunction in humans is likely to be pivotal for developing effective treatments for Alzheimer's disease (AD). To model the temporal progression of AD in humans, we used a collection of brains with controls and individuals from each Braak stage to quantitatively investigate the correlation between intraneuronal caspase activation or macroautophagy markers, NFT burden, and neuronal loss, in the dorsal raphe nucleus and locus coeruleus, the earliest vulnerable areas to NFT accumulation. We fit linear regressions with each count as outcomes, with Braak score and age as the predictors. In progressive Braak stages, intraneuronal active caspase-6 positivity increases both alone and overlapping with NFTs. Likewise, the proportion of NFT-bearing neurons showing autophagosomes increases. Overall, caspases may be involved in upstream cascades in AD and are associated with higher NFTs. Macroautophagy changes correlate with increasing NFT burden from early AD stages. PMID- 29031089 TI - 17beta-estradiol regulates the RNA-binding protein Nova1, which then regulates the alternative splicing of estrogen receptor beta in the aging female rat brain. AB - Alternative RNA splicing results in the translation of diverse protein products arising from a common nucleotide sequence. These alternative protein products are often functional and can have widely divergent actions from the canonical protein. Studies in humans and other vertebrate animals have demonstrated that alternative splicing events increase with advanced age, sometimes resulting in pathological consequences. Menopause represents a critical transition for women, where the beneficial effects of estrogens are no longer evident; therefore, factors underlying increased pathological conditions in women are confounded by the dual factors of aging and declining estrogens. Estrogen receptors (ERs) are subject to alternative splicing, the spliced variants increase following menopause, and they fail to efficiently activate estrogen-dependent signaling pathways. However, the factors that regulate the alternative splicing of ERs remain unknown. We demonstrate novel evidence supporting a potential biological feedback loop where 17beta-estradiol regulates the RNA-binding protein Nova1, which, in turn, regulates the alternative splicing of ERbeta. These data increase our understanding of ER alternative splicing and could have potential implications for women taking hormone replacement therapy after menopause. PMID- 29031091 TI - Hexavalent chromium removal by multilayer membrane assisted by photocatalytic couple nanoparticle from both permeate and retentate. AB - In this study, a novel photocatalytic thin film nanocomposite (TFC) membrane was prepared for removal of hexavalent chromium (Cr(VI)) from aqueous solution. In this regards, a TFC membrane was modified by a layer of chitosan as an adsorbent and then was coated with a layer of synthesized photocatalytic nanoscale zerovalent iron@titanium dioxide (nZVI@TiO2) nanoparticles via layer-by-layer (LBL) technology. Prepared membranes were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM) and contact angle analysis. The Cr(VI) removal efficiency of the membranes was evaluated by batch removal and dynamic filtration tests. The water flux was increased from 26.2 to 39.7l/m2h as a consequence of improved hydrophilicity which was approved by contact angle analysis. The modified TFC membrane has shown the significant removal of Cr(VI) in retentate as well as the permeate stream. Further, the Cr(VI) removal of retentate flow decreased with increasing pH and feed concentration whereas the Cr(VI) removal of permeate was enhanced with increasing initial feed concentration. Increasing the flux recovery from 62% (for neat TFC) to 87% (for modified TFC membrane) demonstrated that the modification of membrane improved the anti-fouling property of the modified membrane. PMID- 29031092 TI - One-step synthesis of silicon carbide foams supported hierarchical porous sludge derived activated carbon as efficient odor gas adsorbent. AB - Hierarchical porous sludge-derived activated carbon coated on macroporous silicon carbide (SiC) foams substrate has been facilely fabricated via a simple one-step strategy by utilizing sludge as carbon source, and jointly using zinc chloride and hexadecanol as pore forming agents. The sludge-derived carbon has been confirmed to be hierarchical macro-meso-microporous structure based on detailed characterization by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectra and nitrogen adsorption-desorption measurement. The adsorption tests showed that the hierarchical porous sludge-derived activated carbon fabricated by one-step pore-forming (zinc chloride and hexadecanol microemulsion mixture) possesses excellent adsorption capacity (259.9mgg-1, breakthrough time reach 90min and saturation end-time up to 140min) of methyl mercaptan (CH3SH). The excellent adsorption performance can be attributed to the macroporous SiC foam skeleton and the mesopores channel formed by nonionic surfactant hexadecanol micelles, as well as the micropores activated by ZnCl2 as odor capture sites. The proposed pore-forming strategy paves an avenue for the sludge disposal and even the development of bio-derived materials. PMID- 29031093 TI - Three-dimensional Ag2O/Bi5O7I p-n heterojunction photocatalyst harnessing UV-vis NIR broad spectrum for photodegradation of organic pollutants. AB - Ag2O nanoparticles-loaded Bi5O7I microspheres forming a three dimensional Ag2O/Bi5O7I p-n heterojunction photocatalyst with wide-spectrum response were synthesized in this study. The results of transmission electron microscopy observations revealed that the Ag2O nanoparticles with the diameter of ca. 10 20nm were distributed on the surfaces of Bi5O7I nanosheets. The as-synthesized Ag2O/Bi5O7I exhibited an excellent wide-spectrum response to wavelengths ranging from ultraviolet (UV) to near-infrared (NIR), indicating its potential for effective utilization of solar energy. Compared with pure Bi5O7I, the Ag2O/Bi5O7I composite also demonstrated excellent photocatalytic activity for the degradation of Bisphenol A and phenol in aqueous solution under visible LED light irradiation. Among samples, the 20% Ag2O/Bi5O7I composite photocatalyst showed the highest photocatalytic activity for the degradation of Bisphenol A and phenol in aqueous solution. In addition, the 20% Ag2O/Bi5O7I composite also exhibited a photocatalytic activity for the degradation of Bisphenol A under NIR light irradiation. The improved photocatalytic activity is attributed to the formation of a p-n heterojunction between Ag2O and Bi5O7I, allowing the efficient utilization of solar energy (from UV to NIR) and high separation efficiency of photogenerated electron-hole pairs. The present work is desirable to explore a possible avenue for the full utilization of solar energy. PMID- 29031094 TI - Risk assessment of dietary lead exposure among First Nations people living on reserve in Ontario, Canada using a total diet study and a probabilistic approach. AB - Indigenous peoples have elevated risk of lead (Pb) exposure as hunted traditional food can be contaminated with lead-containing ammunition. Recent scientific consensus states that there is no threshold level for Pb exposure. The objective of this study was to estimate dietary exposure to Pb among First Nations living on-reserve in the province of Ontario, Canada. A total diet study was constructed based on a 24-h recall and Pb concentrations for traditional foods from the First Nations Food, Nutrition, and Environment Study (FNFNES) and Pb concentrations in market foods from Health Canada. A probabilistic assessment of annual and seasonal traditional food consumption was conducted. Results indicate that traditional foods, particularly moose and deer meat. are the primary source of dietary Pb intake (73%), despite providing only 1.8% of the average caloric intake. The average dietary Pb exposure (0.21MUg/kg/d) in the First Nations population in Ontario was 1.7 times higher than the dietary Pb exposure in the general Canadian population. Pb intake was associated with an estimated average increase in systolic blood pressure of 1.2mmHg. These results indicate that consumption of foods hunted with Pb containing ammunition and shot puts the population at elevated risk of Pb toxicity. PMID- 29031095 TI - Sustainable superior function of the synthesized NixCo1-xFe2Oz nanosphere on the destruction of chlorinated biphenyls in the effluent. AB - NixCo1-xFe2Oz composite oxide nanosphere was successfully prepared, to degrade 2 monochlorobiphenly (CB-1) in continuous-flow fixed-bed microreactor at GHSV of 20000h-1. The five cycles of temperature-dependent run experiments between 150 and 350 degrees C showed its superior activity with a CB-1 conversion of more than 95% above 300 degrees C over Ni0.5Co0.5Fe2Oz. Importantly, the sustainable higher reactivity could be observed over prolonged 600min reaction times after the 5th run test. The degradation products detected as biphenyl and monochlorobenzene with yield ratio of 129, account for 0.24% and 0.0011% of initial CB-1 respectively. This indicated the weak occurrence of hydrodechlorination and breakage of CC bridge bond during the degradation of CB 1. The possibly dominant occurrence of oxidative degradation probably follows Mars-van Krevelen mechanism, resulting in the generation of the formic, acetic, propanoic and butyric acids and so on. Due to the high oxygen mobility over Ni0.5Co0.5Fe2Oz nanosphere, the consumed oxygen species could be compensated rapidly by the gas phase oxygen via O2->O2- -> 2O- -> 2O2-. The interaction among different elements in Ni0.5Co0.5Fe2Oz nanosphere confirmed by the derivation of the electron cloud, enhanced the mobility of the reactive oxygen species, which would be beneficial for the oxidation of chlorinated biphenyls. PMID- 29031096 TI - Removal of metallic Al and Al/Zn alloys in MSWI bottom ash by alkaline treatment. AB - In order to reduce the leaching of pollutants and remove the Al and Zn/Al alloy from municipal solid waste incineration bottom ash (MSWIBA), an optimized alkaline pre-treatment procedure was developed in this study. The influences of alkaline conditions on the removal rate of Al and Zn/Al alloy were investigated, including [OH]- concentration, temperature, particle size, liquid/solid ratio and treatment duration. The experimental results showed that the optimized alkaline pre-treatment conditions to efficiently remove the Al and Zn/Al alloy was by using a minimum of 1.0mol/l [OH]-, at 55 degrees C and with a minimal liquid/solid ratio of 5. The removal rate of Al and Zn/Al alloy followed an S shape curve, in which the slow beginning stage was attributed to the protection of the oxidation layer and the quenched product around the Al and Al/Zn alloy. After 3h of the optimized alkaline pre-treatment, the leaching of Cr, Cu, Pb and Zn of the treated MSWIBA was reduced by more than 90% of that of the original MSWIBA. The alkali-silica reaction test further indicated that the expansion of concrete prepared with the pre-treated MSWIBA was significantly reduced and there was no macro-crack or spalling damage on the surface of the tested specimens. PMID- 29031097 TI - The tall and the short of it: An investigation of height ideals, height preferences, height dissatisfaction, heightism, and height-related quality of life impairment among sexual minority men. AB - Human height has attracted empirical interest from a variety of psychological perspectives. However, little research has explored height from the perspective of sexual minority men, inclusive of their height beliefs, height preferences, height dissatisfaction, experiences of heightism, and height-related quality of life impairment. We explored these height variables in 2733 sexual minority men who completed a survey distributed nationwide to Australian and New Zealander users of geosocial-networking smartphone applications. Results showed that men's ideal height (M=182.26cm, SD=5.93cm) was taller than their actual height (M=178.96cm, SD=7.52cm). Shorter and taller men reported negative and positive treatment from others due to their height, respectively, with the cross-over (i.e., neutral) point at approximately 175-176cm. Heightism was reported by 11.0% of men. Height dissatisfaction and heightism were uniquely associated with quality of life impairment; the size of these associations was small. PMID- 29031098 TI - Stepwise construction of a metabolic network in Event-B: The heat shock response. AB - There is a high interest in constructing large, detailed computational models for biological processes. This is often done by putting together existing submodels and adding to them extra details/knowledge. The result of such approaches is usually a model that can only answer questions on a very specific level of detail, and thus, ultimately, is of limited use. We focus instead on an approach to systematically add details to a model, with formal verification of its consistency at each step. In this way, one obtains a set of reusable models, at different levels of abstraction, to be used for different purposes depending on the question to address. We demonstrate this approach using Event-B, a computational framework introduced to develop formal specifications of distributed software systems. We first describe how to model generic metabolic networks in Event-B. Then, we apply this method for modeling the biological heat shock response in eukaryotic cells, using Event-B refinement techniques. The advantage of using Event-B consists in having refinement as an intrinsic feature; this provides as a final result not only a correct model, but a chain of models automatically linked by refinement, each of which is provably correct and reusable. This is a proof-of-concept that refinement in Event-B is suitable for biomodeling, serving for mastering biological complexity. PMID- 29031099 TI - Shear wave elastography for characterization of breast lesions: Shearlet transform and local binary pattern histogram techniques. AB - Shear wave elastography (SWE) examination using ultrasound elastography (USE) is a popular imaging procedure for obtaining elasticity information of breast lesions. Elasticity parameters obtained through SWE can be used as biomarkers that can distinguish malignant breast lesions from benign ones. Furthermore, the elasticity parameters extracted from SWE can speed up the diagnosis and possibly reduce human errors. In this paper, Shearlet transform and local binary pattern histograms (LBPH) are proposed as an original algorithm to differentiate malignant and benign breast lesions. First, Shearlet transform is applied on the SWE images to acquire low frequency, horizontal and vertical cone coefficients. Next, LBPH features are extracted from the Shearlet transform coefficients and subjected to dimensionality reduction using locality sensitivity discriminating analysis (LSDA). The reduced LSDA components are ranked and then fed to several classifiers for the automated classification of breast lesions. A probabilistic neural network classifier trained only with seven top ranked features performed best, and achieved 98.08% accuracy, 98.63% sensitivity, and 97.59% specificity in distinguishing malignant from benign breast lesions. The high sensitivity and specificity of our system indicates that it can be employed as a primary screening tool for faster diagnosis of breast malignancies, thereby possibly reducing the mortality rate due to breast cancer. PMID- 29031100 TI - Discovery of a new mechanism for regulation of plant triacylglycerol metabolism: The peanut diacylglycerol acyltransferase-1 gene family transcriptome is highly enriched in alternative splicing variants. AB - Triacylglycerols (TAGs) are the most important energy storage form in oilseed crops. Diacylglycerol acyltransferase (DGAT) catalyzes the rate-limiting step of the Kennedy pathway of TAG biosynthesis. To date, little is known about the regulation of DGAT activity in peanut (Arachis hypogaea), an agronomically important oilseed crop that is cultivated in many parts of the world. In this study, seven distinct forms of type 1 DGAT (AhDGAT1.1-AhDGAT1.7) were identified, cloned, and characterized. Comparisons of the nucleotide sequences and gene structures revealed many different splicing variants of AhDGAT1, some of which displayed different organ-specific expression patterns. A representative gene (AhDGAT1.1) was transformed into wild-type tobacco and was shown to increase seed fatty acid (FA) content by 14.7%-20.9%. All seven AhDGAT1s were expressed in TAG deficient Saccharomyces cerevisiae strain H1246; the five longest AhDGAT1 variants generated high levels of acyltransferase activity and complemented the free fatty acid lethality phenotype in this strain. The alternative splicing that gives rise to AhDGAT1.2 and AhDGAT1.4 creates predicted protein C-terminal truncations. The proteins encoded by these two variants were not active and did not complement the fatty acid sensitivity in H1246. These results were verified by visualization of intracellular lipid droplets using Nile Red staining. Collectively, the results presented here represent the first comprehensive analysis of the peanut DGAT1 gene family, which, unlike in other published plant DGAT1 sequences, shows widespread alternative splicing that may affect the expression patterns and enzyme activities of some members of the gene family. PMID- 29031101 TI - Radionuclides in mushrooms and soil-to-mushroom transfer factors in certain areas of China. AB - Activity concentrations of 238U, 226Ra, 228Ra, 137Cs and 40K in 64 mushroom samples collected in China from Yunnan, Fujian and Heilongjiang Provinces, were measured. Gamma-ray emissions were determined by using high-purity germanium (HPGe) gamma spectrometry. The range of concentrations (Bq kg-1 dry weight) for 238U, 226Ra, 228Ra, 137Cs and 40K in all investigated mushroom samples were from 0.12 to 12, 0.05 to 7.5, 0.14 to 14, MDC(<0.01) to 339, and 396 to 1880, respectively. Activity concentrations of 137Cs in mushrooms showed some variation between species sampled at the same site. To calculate soil to mushroom transfer factors, levels of radionuclide in 15 paired soil samples and mushrooms were also investigated. The median transfer factors for 238U, 226Ra, 228Ra, 137Cs and 40K were 8.32 * 10-2, 3.03 * 10-2, 6.69 * 10-2, 0.40 and 1.19, respectively. The results were compared with values of other areas. PMID- 29031102 TI - Identifying the loss of functional independence of older people residing in the community: Validation of the PRISMA-7 instrument in Brazil. AB - The identification of the older people who are functionally dependant is essential for planning interventions with emphasis on secondary and tertiary prevention. Therefore, a simplified tool, able to identify these individuals for a more comprehensive evaluation, is required. However, the use of a measuring tool in a different socio-cultural context requires prior adaptation. This article aims to verify the psychometric properties of the PRISMA-7 in Brazilian context. This instrument was previously shown as able to identify older persons living in the community who have risk of functional loss in a Canadian study. In a sample of 1748 older persons, the internal consistency assessed by Cronbach's alpha showed a borderline value credited to the reduced number of questionnaire items. Factor analysis identified two well correlated factors, except for items 2 and 6. For criterion validity the SMAF scale (French acronym, Functional Autonomy Measurement System) was used as the gold standard. The analysis of the ROC curve indicated a sensitivity of 74.4% and specificity of 87.4% for the cut-off point of 4, while the Canadian version had a cut-off point of 3 for disability detection. Inter and intra-observer reliability, investigated by the Kappa Cohen were high and statistically significant. In conclusion, the results suggest that the validation process was adequate, and recommend the Brazilian version of PRISMA-7, to track older people with functional loss in the community. PMID- 29031103 TI - Kaposi's sarcoma herpesvirus-induced endothelial cell reprogramming supports viral persistence and contributes to Kaposi's sarcoma tumorigenesis. AB - Kaposi's sarcoma (KS) is an endothelial tumor causally linked to Kaposi's sarcoma herpesvirus (KSHV) infection. At early stages of KS, inflammation and aberrant neoangiogenesis are predominant, while at late stages the disease is characterized by the proliferation of KSHV-infected spindle cells (SC). Since KSHV infection modifies the endothelial cell (EC) identity, the origin of SCs remains elusive. Yet, pieces of evidence indicate the lymphatic origin. KSHV infected ECs display increased proliferative, angiogenic and migratory capacities which account for KS oncogenesis. Here we propose a model in which KSHV reprograms the EC identity, induces DNA damage and establishes a dysregulated gene expression program involving interplay of latent and lytic genes allowing continuous reinfection of ECs attracted to the tumor by the secretion of virus induced cellular factors. PMID- 29031104 TI - Evaluation of the Gauss-Eyring model to predict thermal inactivation of micro organisms at short holding times. AB - Application of mild (non)-thermal processing technologies have received considerable interest as alternative to thermal pasteurisation, because of its shorter holding time and lower temperature aiming for an improved product quality. To understand and develop these alternative technologies, like pulsed electric fields, a proper comparison between the conventional thermal and alternative process is necessary. Up to recent, no suitable models were available to predict the inactivation of micro-organisms by a thermal process at a chosen short holding time, due to non-linearity. The recently developed Gauss-Eyring model with two variables temperature and time has the properties to be a suitable model to apply for short holding times, and was tested for this purpose. Therefore, this study aims to validate if the Gauss-Eyring model can be used to describe non-linear isothermal (a fixed temperature with varying holding time) and isotime (a fixed holding time with varying temperature) thermal inactivation data, and if it is a suitable model to predict the thermal inactivation as a function of temperature for short holding times. Inactivation data of Escherichia coli, Listeria monocytogenes, Lactobacillus plantarum, Salmonella Senftenberg and Saccharomyces cerevisiae in orange juice were collected via isothermal and isotime inactivation kinetics. Survival of the tested micro-organisms was modelled with the Gauss-Eyring model, which contains three parameters sigma, Tr and Z. The transition of 'no inactivation' to 'inactivation' (i.e. the 'shoulder' in inactivation curves) can be characterised as the temperature-time (T,t) combination where T=Tr-Z.log10(t), with Tr as the reference temperature defined for 1s treatment, Z as the temperature needed for a 10-fold increase of decrease of the holding time t, and sigma as the temperature width of the distribution. The Gauss-Eyring model fitted well to the experimental data, and revealed different sensitivity for the tested micro-organisms. Based on the parameter estimations, survival curves for the desired short holding times were predicted. PMID- 29031105 TI - Effects of processing parameters on the inactivation of Bacillus cereus spores on red pepper (Capsicum annum L.) flakes by microwave-combined cold plasma treatment. AB - The efficacy of microwave-combined cold plasma treatment (MCPT) for inactivating Bacillus cereus spores contaminating red pepper (Capsicum annum L.) flakes was investigated. The effects of red pepper drying method, particle size, and water activity (aw) were also evaluated at two levels of microwave power (1700 and 2500W/cm2). The inactivation effect of MCPT was higher at higher microwave power. Spore reduction was more effective with vacuum-dried red pepper than far-infrared dried flakes. A significantly higher level of spore reduction was observed with the red pepper sample with a smaller surface to volume ratio when one surface (exterior surface) was inoculated (p<0.05). Spore reduction by MCPT at high microwave power increased from 1.7 to 2.6logspores/cm2 when the aw of flake increased from 0.4 to 0.9 (p<0.05). MCPT did not change the color of red pepper flakes. MCPT demonstrated potential as a microbial decontaminating technology for red pepper flakes. PMID- 29031106 TI - New insights into resistance to colistin and third-generation cephalosporins of Escherichia coli in poultry, Portugal: Novel blaCTX-M-166 and blaESAC genes. AB - The increasing incidence of intestinal colonization with extended-spectrum beta lactamase (ESBL)-producing Enterobacteriaceae and Gram negative organisms that has been observed in food animals such as poultry, cattle and pigs, are suggestive that animals, food and environment are potential sources of ESBL producing bacteria. Hence, the aim of this study was to characterized commensal E. coli obtained from healthy broiler and turkey flocks at slaughter for the presence of penicillinases-, ESBL-, extended-spectrum AmpC (ESAC)-, plasmid mediated quinolone resistance- and MCR-encoding genes. Study of clonal relatedness showed genetic diversity among CTX-M-type, SHV-12 and TEM-52 producing isolates with human isolates of the same type, was also assessed. We detected that eleven (5.4%, 11/202) and forty-five (2.2%, 45/185) E. coli isolates from broilers and turkeys, respectively, carried blaESBL or blaESAC genes and two isolates from turkeys carried mcr-1 gene. A new variant blaCTX-M 166 was reported in a multidrug resistant isolate from a broiler flock. Overall, we detected a diversity of resistance mechanisms among E. coli from food producing animals, all of them with high importance at a public health level. PMID- 29031107 TI - Accuracy, precision and inter-rater reliability of micro-CT analysis of false starts on bones. A preliminary validation study. AB - Micro computed tomography (micro-CT) has already been proposed as a useful technique for the qualitative analysis of false starts (FS) produced on human bones, although the reliability and the error rate of this technique have not been tested yet, neither for qualitative nor for quantitative assessments. The aim of the present study was to test the morphological agreement, accuracy, precision and inter-rater reliability of micro-CT analysis of FS on bones. The morphological agreement was assessed through the degree of concordance among the 3 independent blind raters in the identification of the shape of 24 FS manually produced on bones by 3 different saws (8 FS for each saw). The accuracy was calculated through the percentage of error in the automatic and manual measurement of the diameter of a reference object. The precision was calculated as CV% of multiple measurements performed by 3 independent blind raters on the reference object and one bone sample acquired 20 times. The inter-rater reliability was assessed as intraclass correlation coefficient (ICC) among measurements performed by 3 independent blind raters, assessing 24 FS produced using 3 different saws. The results demonstrated that both qualitative and quantitative analysis were reproducible and robust. Micro-CT analysis showed a 100% morphological agreement, a high level of accuracy (percentage error < 0,5%), precision (CV% < 5%) and inter-rater reliability (ICC > 0.995), when FS were analyzed by forensic pathologists and/or radiologists with adequate expertise. Obviously, further validation studies are needed, including a higher number of samples produced by a wider variety of saws and multiple operators. PMID- 29031108 TI - Accessibility of fast food outlets is associated with fast food intake. A study in the Capital Region of Denmark. AB - Literature suggests that people living in areas with a wealth of unhealthy fast food options may show higher levels of fast food intake. Multilevel logistic regression analyses were applied to examine the association between GIS-located fast food outlets (FFOs) and self-reported fast food intake among adults (+ 16 years) in the Capital Region of Denmark (N = 48,305). Accessibility of FFOs was measured both as proximity (distance to nearest FFO) and density (number of FFOs within a 1km network buffer around home). Odds of fast food intake >= 1/week increased significantly with increasing FFO density and decreased significantly with increasing distance to the nearest FFO for distances <= 4km. For long distances (>4km), odds increased with increasing distance, although this applied only for car owners. Results suggest that Danish health promotion strategies need to consider the contribution of the built environment to unhealthy eating. PMID- 29031109 TI - Application of novel ternary deep eutectic solvents as a functional monomer in molecularly imprinted polymers for purification of levofloxacin. AB - A series of ecofriendly ternary deep eutectic solvents (DESs) with different molar ratios were prepared as candidate functional monomers. Three of the optimal ternary DESs as functional monomers were applied to the preparation of molecularly imprinted polymers (MIPs). After synthesis, the proposed polymers were characterized by elemental analysis (EA), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller surface area measurements (BET) and Fourier transform infrared spectroscopy (FT-IR). These MIPs based on ternary DESs with different molar ratios exhibited different absorption capacities of levofloxacin. A sample of levofloxacin (500ng) was dissolved in a millet extractive (10mL). All MIPs were used as SPE adsorbents to purify the extracts. According to characterization result, the ternary DES-3 (1:3:1.5) was joined in the synthetic process of MIP-1. The green ternary DES-3 based MIPs had the best selectivity recovery for levofloxacin (91.4%) from the millet extractive. The best selectivity of MIP-1 was attributed to the novel monomer (ternary DES) in the preparation of the materials. Overall, ternary DES based MIPs have potential applications as media in many research areas. PMID- 29031110 TI - Determination of l-glutamic acid and gamma-aminobutyric acid in mouse brain tissue utilizing GC-MS/MS. AB - A rapid and selective method for the quantitation of neurotransmitters, l Glutamic acid (GA) and gamma-Aminobutyric acid (GABA), was developed and validated using gas chromatography-tandem mass spectrometry (GC-MS/MS). The novel method utilized a rapid online hot GC inlet gas phase sample derivatization and fast GC low thermal mass technology. The method calibration was linear from 0.5 to 100MUg/mL, with limits of detections of 100ng/mL and 250ng/mL for GA and GABA, respectively. The method was used to investigate the effects of deletion of organic anion transporter 1 (Oat1) or Oat3 on murine CNS levels of GA and GABA at 3 and 18 mo of age, as compared to age matched wild-type (WT) animals. Whole brain concentrations of GA were comparable between WT, Oat1-/-, and Oat3-/- 18 mo at both 3 and 18 mo of age. Similarly, whole brain concentrations of GABA were not significantly altered in either knockout mouse strain at 3 or 18 mo of age, as compared to WT. These results indicate that the developed GC-MS/MS method provides sufficient sensitivity and selectivity for the quantitation of these neurotransmitters in mouse brain tissue. Furthermore, these results suggest that loss of Oat1 or Oat3 function in isolation does not result in significant alterations in brain tissue levels of GA or GABA. PMID- 29031111 TI - Immobilization of sugars in supermacroporous cryogels for the purification of lectins by affinity chromatography. AB - Lectins are glycoproteins that bind to carbohydrates or glycoconjugates by specific interactions. The specificity of lectins to various carbohydrates is a determinant factor in the choice of ligand for the chromatographic matrix when using chromatography as a lectin purification technique. In this work, the immobilization of three different aminated carbohydrates on the surface of macroporous polymeric cryogels was evaluated. Carbohydrates were immobilized on cryogel surfaces via the glutaraldehyde method to create spacer arms, reducing steric hindrance. The immobilized N-acetyl-d-glucosamine and N-acetyl-d mannosamine concentrations contained approximately 130mg of carbohydrate/g dehydrated cryogel, while the N-acetyl-d-galactosamine contained 105mg of carbohydrate/g dehydrated cryogel. Scanning electron microscopy showed that the physical structure and porosity of the chromatographic columns were not affected by the immobilization process, maintaining an elevated hydration capacity and the macroporous structure of the cryogels. Adsorption of concanavalin A on cryogels functionalized with N-acetyl-d-glucosamine (cryo-d-GlcNAc) was tested, as well as its reuse capability. After 5 cycles of use, cryo-d-GlcNAc was shown to be stable, with an adsorptive capacity of around 50mg/g. Carbohydrate immobilization in polyacrylamide cryogels was satisfactory, with promise for applications in lectin purification processes. PMID- 29031112 TI - Quantitative analysis of antithrombin III binding site in low molecular weight heparins by exhausetive heparinases digestion and capillary electrophoresis. AB - The antithrombin III (ATIII)-binding site, which contains a special 3-O-sulfated, N-sulfated glucosamine residue with or without 6-O-sulfation, is mainly responsible for the anticoagulant activity of heparin. Undergoing the chemical depolymerization process, the preservation of the ATIII-binding site in low molecular weight heparins (LMWHs) are varied leading to the fluctuation of the anticoagulant activity. Herein we report a capillary electrophoresis (CE) method in combination with heparinase digestion and affinity chromatography for the measurement of molar percentage of ATIII-binding site of LMWHs. After exhaustively digesting LMWHs with the mixture of heparinase I, II and III, almost all the resulting oligosaccharide building blocks, including the three 3-O sulfated tetrasaccharides derived from the ATIII-binding site, were resolved by CE separation. The peak area of each building block permits quantification of the molar percentage of the ATIII-binding site. The peaks corresponding to the 3-O sulfated tetrasaccharides were assigned based on the linear relationship between the electrophoretic mobilities of the oligosaccharides and their charge to mass ratios. The peak assignment was further confirmed by analysis of the high ATIII affinity fractions, which contains much high 3-O-sulfated tetrasaccharides. With the method, the molar percentage of the ATIII-binding site of enoxaparin from different batches and different manufactures were measured and compared. It was demonstrated that the CE method provides more precise data for assessing the anti FXa activity than that of the biochemical assay method. PMID- 29031114 TI - Neo-clerodane diterpenoids from the whole plants of Scutellaria formosana. AB - Scuteformoids A-J, ten previously undescribed neo-clerodane diterpenoids along with one known analogue, were isolated from petroleum ether soluable fraction of the whole plants of Scutellaria formosana. The differences among these compounds are the substituents and stereochemistry at C-13. Their structures were elucidated by 1D and 2D NMR experiments, and the absolute configurations of Scuteformoids A, C, E, F, and I were further confirmed by single-crystal X-ray diffraction. Scuteformoids A, C, D, F, H, and I were evaluated for their inhibitory effects against HIV lytic replication and cytotoxic activities. All of them showed weak anti-HIV activities, with EC50 values ranging from 48.24 to 79.17 MUg/mL. PMID- 29031113 TI - Cross-sectional and longitudinal small animal PET shows pre and post-synaptic striatal dopaminergic deficits in an animal model of HIV. AB - INTRODUCTION: In vivo imaging biomarkers of various HIV neuropathologies, including dopaminergic dysfunction, are still lacking. Towards developing dopaminergic biomarkers of brain involvement in HIV, we assessed the pre and postsynaptic components of the dopaminergic system in the HIV-1 transgenic rat (Tg), a well-characterized model of treated HIV+ patients, using small-animal PET imaging. METHODS: Fifteen to 18 month-old Tg and wild type (WT) rats were imaged with both [18F]-FP-CMT, a dopamine transporter (DAT) ligand (n=16), and [18F] Fallypride, a D2/D3 dopamine receptor (D2/D3DR) ligand (n=16). Five to 8 month old Tg and WT rats (n=18) were also imaged with [18F]-FP-CMT. A subset of animals was imaged longitudinally at 7 and 17 months of age. Multiplex immunohistochemistry staining for DAT, tyrosine hydroxylase, D2DR, D3DR, GFAP, Iba1 and NeuN was performed on a subgroup of the scanned animals. RESULTS: [18F] FP-CMT and [18F]-Fallypride binding potential (BPND) values were significantly lower in 15-18 month-old Tg compared to age-matched WT rats (p<0.0001 and 0.001, respectively). [18F]-FP-CMT BPND values in 5-8 month-old rats, however, were not significantly different. Longitudinal age-related decrease in [18F]-FP-CMT BPND was exacerbated in the Tg rat. Immunohistochemistry showed decreased staining of dopaminergic markers in Tg rats. Rats with higher serum gp120 had lower mean BPND values for both ligands. CONCLUSIONS: We found presynaptic and postsynaptic dopaminergic dysfunction/loss in older Tg compared to WT rats. We believe this to be related to neurotoxicity of viral proteins present in the Tg rats' serum and brain. ADVANCES IN KNOWLEDGE: Our findings confirm prior reports of neurobehavioral abnormalities suggestive of dopaminergic dysfunction in this model. They also suggest similarities between the Tg rat and HIV+ patients as far as dopaminergic dysfunction. IMPLICATIONS FOR PATIENT CARE: The Tg rat, along with the above-described quantitative PET imaging biomarkers, can have a role in the evaluation of HIV neuroprotective therapies prior to human translation. PMID- 29031115 TI - Decolorization and detoxification of dye mixture and textile effluent by lichen Dermatocarpon vellereceum in fixed bed upflow bioreactor with subsequent oxidative stress study. AB - Navy Blue HE22 (NBHE22), dye mixture and real textile effluent were decolorized and degraded by lichen Dermatocarpon vellereceum. Up-flow bioreactor showed about 80%, 70%, 80% and 65% removal of American dye manufacturer index (ADMI), biological oxygen demand (BOD), total suspended solids (TSS) and total dissolved solids (TDS), respectively of dye mixture at flow rate of 25mlh-1. The removal of ADMI, BOD, TSS and TDS of real textile effluent were 75%, 65%, 82% and 70%, respectively at flow rate of 30mlh-1. Significant induction of extracellular enzymes such as manganese peroxidase and lignin peroxidase was observed up to 46% and 36% during decolorization of dye mixture, while 43% and 24% during effluent treatment, respectively. Exponential enhancement in the activities of stress enzymes such as catalase (CAT) and guaiacol peroxidase (GPX) was observed after exposure to NBHE22 (116% and 125%, respectively), dye mixture (150% and 300%, respectively) and effluent (400% and 350%, respectively) endorsing the stress tolerance ability of model lichen. Phytotoxicity and genotoxicity studies demonstrated less toxic nature of metabolites resulted from biodegradation. PMID- 29031116 TI - Evaluation of fluoride bioremediation and production of biomolecules by living cyanobacteria under fluoride stress condition. AB - Application of microalgae for defluoridation has gained interest in recent years. In the present study, bioremediation of fluoride using living cyanobacteria, Starria zimbabweensis, collected from wastewater of coke-oven effluent treatment plant, Durgapur, India, has been investigated. Initially, the cyanobacterial strain was grown in BG11 medium at 25 degrees C, 45MUmol/m2/s irradiation in 18h: 6h light:dark cycle in an algal incubator. Samples were withdrawn after 2 days interval and analyzed for its dry biomass and lipid content. Optimum inoculum size of 10% and age of 16th day were assessed based on maximum dry biomass (9.307 +/- 0.01g/L) and lipid (244.05 +/- 0.02mg/L) production. SEM-EDX and FTIR studies of both native and fluoride treated biomass were done to emphasize the changes. During kinetic study of defluoridation, initial fluoride concentration was varied in the range of 10-50mg/L. Maximum fluoride removal (66.6 +/- 0.11%) and dry biomass (18.19 +/- 0.12g/L) were obtained at 10mg/L fluoride concentration using 10% of 16th day's inoculum. Biomass and lipid content were found to increase 2 and 4 folds, respectively under fluoride stress condition. Furthermore, chlorophyll, carbohydrate and protein content of the biomass were also compared between control and fluoride contaminated conditions. Fatty Acid Methyl Ester (FAME) analysis was done using Gas Chromatography (GC) to compare the lipid profile of native and fluoride loaded strain. PMID- 29031117 TI - Reactions of Melolontha hippocastani adults to high manganese content in food. AB - Rapid adaptation of insect species to environmental changes can be advantageous for their development. Forest cockchafer (Melolontha hippocastani) is herbivorous insect species with high food intake that has been widely studied within European conditions. It can cause huge economic and ecological losses especially in oak dominated forest stands. Food preference of this species is mainly comprised of trees with a potential to accumulate manganese in their assimilation apparatus. In order to determine cockchafer's reactions to increased Mn concentration in its food, the adults were reared in laboratory conditions controlled for temperature, humidity, and light on a natural diet of oak (Quercus petraea) leaves. Food was contaminated by soaking in solutions of MnCl2.4H2O in concentrations from 0.5 to 10mgml-1. Food consumption, activity period of adults, quantity of eggs laid, body weights of individuals, as well as Mn concentrations in unconsumed food, excrement, and the bodies of cockchafers were determined to indicate how these change in reaction to food quality altered in terms of Mn content. The results showed that very high Mn content in the diet significantly influenced food consumption by M. hippocastani adults and thereby their development. This was in spite of the tendency of individuals to expel Mn through the faeces and incorporate it into undetermined parts of their bodies. Negative reactions of the experimental population were determined in treatments fed leaves with Mn concentration of 1800ppm and more. Our experiment proved that Mn can greatly influence the phytophagous cockchafer (decreased feeding time, food consumption, and fertility). PMID- 29031118 TI - Chemical elements in Mediterranean macroalgae. A review. AB - This review analyzes the state of knowledge on the capacity of Mediterranean macroalgae to accumulate, tolerate and biomonitor macro- and micro-elements present in seawater and sediments. The results show that the investigated macroalgal species amount to c. 5.0% of all Mediterranean native Rhodophyta, Chlorophyta and Ochrophyta. The most commonly analyzed elements in algae were Pb, Cd, Zn and Cu, whereas very few studies were available for macroelements such as Ca and K. Uptake mechanisms and the factors influencing accumulation are overall well known, but the available studies are restricted to a limited number of chemical elements and algal species. This review also shows that macroalgae can accumulate and tolerate high concentrations of chemical elements, and can act as effective bioindicators of marine pollution. Phytotoxic limits for algal species are not clearly identified by the available studies and require further investigation. Future research should focus on the development of protocols for long-term biomonitoring programmes through the use of macroalgae. Future studies also need to investigate the biomagnification of toxic trace elements in macroalgae-based food webs. PMID- 29031119 TI - Index analysis and human health risk model application for evaluating ambient air heavy metal contamination in Chemical Valley Sarnia. AB - The impacts of air emissions as a consequence of industrial activities around communities of human habitation have been extensively reported. This study is the first to assess potential adverse human health effects in the Chemical Valley Sarnia (CVS) area, around the St. Clair River, using health risk models, ecological and pollution indices. Large quantities of particulate matters (PM) are generated from anthropogenic activities, which contain several heavy metals in trace quantities with potentially adverse effects to humans and environmental health. The distribution, and human health impact assessment of trace element concentrations in PM fractions were examined. Elemental concentrations of As, Cd, Cr (VI), Cu, Fe, Mn, Pb, Ni, Zn were determined in the PM size-segregated samples collected from the CVS area between 2014 and 2017. The results showed relatively high concentration of PM<2.5 (87.19+/-8.1(mgm3)) which is approximately 4 times the WHO air quality guidelines. Pb concentration (143.03 +/- 46.87etag/m3) was 3.6 times higher than the air quality standards of NAAQS. Cr (VI) showed moderate to considerable contamination ( Cf=4) in the CVS while Cr (VI), Pb, and Ni had enrichment factor Ef < 3 (minimal), signifying contributions from anthropogenic activities. Pollution load index (PLi) value observed was 1.4 indicating human health risk from the PM, especially for the children in the area. The deposition fluxes (DPhi) showed that PM-bound metals could potentially bypass the head airways and cause damages to the tracheobronchial tree, increasing the human health risks of nephroblastomasis development. The main route of entry for the heavy metal bound PM in humans were observed as through ingestion and inhalation. The highest total excess cancer risks observed for children (6.7*10-4) and adult (1.0*10-4) indicating potential cancer effects. The Incremental Lifetime Cancer Risk (ILCR) increased from Pb < Ni < Cd < Cr (VI) < As. Overall, children are more likely to develop carcinogenic and non-carcinogenic health effects from exposures to elemental concentrations of airborne PM in the study area. PMID- 29031120 TI - Enabling spontaneous analogy through heuristic change. AB - Despite analogy playing a central role in theories of problem solving, learning and education, demonstrations of spontaneous analogical transfer are rare. Here, we present a theory of heuristic change for spontaneous analogical transfer, tested in four experiments that manipulated the experience of failure to solve a source problem prior to attempting a target problem. In Experiment 1, participants solved more source problems that contained an additional financial constraint designed to signal the inappropriateness of moves that maximized progress towards the goal. This constraint also led to higher rates of spontaneous analogical transfer to a superficially similar problem. Experiments 2 and 3 showed that the effects of this constraint extend to superficially and structurally different analogs. Experiment 4 generalized the finding to a non analogous target problem that also benefitted from inhibiting maximizing moves. The results indicate that spontaneous transfer can arise through experience during the solution of a source problem that alters the heuristic chosen for solving both analogical and non-analogical target problems. PMID- 29031121 TI - Facilitating decision-making in women undergoing genetic testing for hereditary breast cancer: BRECONDA randomized controlled trial results. AB - BACKGROUND: Decision-making concerning risk-reducing mastectomy for women at hereditary risk of breast cancer entails complex personal choices. Deciding whether and how to restore breast shape after risk-reducing mastectomy is a key part of this process. We developed a web-based decision aid, BRECONDA (Breast Reconstruction Decision Aid), to assist women in decision-making regarding breast reconstruction. METHOD: This study assessed the efficacy of BRECONDA to assist women at increased risk of breast cancer in making decisions regarding risk reducing mastectomy in terms of decisional conflict, knowledge, and satisfaction with information. Women at hereditary risk of breast cancer (N = 64) were recruited into this randomized controlled trial from four Australian hereditary cancer clinics. Participants initially provided online consent and completed baseline questionnaires assessing decisional conflict, knowledge, and satisfaction with information. They were then randomly assigned to either: 1) Intervention - unlimited access to BRECONDA, with usual care; or, 2) Control - usual care. At 2-months follow-up (N = 60) the outcomes were re-assessed. Intervention participants also completed user acceptability ratings for the intervention overall and specific key modules. RESULTS: MANCOVA analyses indicated that Intervention participants reported lower decisional conflict (P = 0.027), and greater knowledge (P = 0.019) and satisfaction with information (P < 0.0005) at 2-months follow-up compared with Controls. Intervention participants reported high user acceptability and satisfaction with the intervention. CONCLUSION: BRECONDA benefits women considering risk-reducing mastectomy by reducing decisional conflict, and improving knowledge and satisfaction with information. These benefits, coupled with high user acceptability, demonstrate the feasibility of implementing BRECONDA in the hereditary cancer risk context. PMID- 29031122 TI - Allocating effort and anticipating pleasure in schizophrenia: Relationship with real world functioning. AB - BACKGROUND: Poor motivation to engage in goal-oriented behavior has been recognized as a hallmark feature of schizophrenia spectrum disorders (SZ). Low drive in SZ may be related to anticipating rewards as well as to poor working memory. However, few studies to date have examined beliefs about self-efficacy and satisfaction for future rewards (anticipatory pleasure). Additionally, few studies to date have examined how these deficits may impact SZ patients' real world functioning. METHOD: The present study examined SZ patients' (n=57) anticipatory pleasure, working memory, self-efficacy and real world functioning in relation to their negative symptom severity. RESULTS: Results revealed that SZ patients' negative symptom severity was related to decisions in effort allocation and reward probability, working memory deficits, self-efficacy and anticipatory pleasure for future reward. Effort allocation deficits also predicted patients' daily functioning skills. CONCLUSIONS: SZ patients with high levels of negative symptoms are not merely effort averse, but have more difficulty effectively allocating effort and anticipating pleasure engaging in effortful activities. It may be the case that continuously failing to achieve reinforcement from engagement and participation may lead SZ patients to form certain negative beliefs about their abilities which contributes to amotivation and cognitive deficits. Lastly, our findings provide further support for a link between SZ patients functional daily living skills their effort allocation. PMID- 29031123 TI - Electric field standing wave effects in internal reflection and ATR spectroscopy. AB - We investigate electric field standing wave effects in the system semiinfinite incidence medium with high index of refraction/layer/vacuum, the latter being the semiinfinite exit medium. If the layer has a lower index of refraction than the incidence medium, then very strong resonances occur between the two critical angles of the system defined by the systems incidence medium/layer and incidence medium/vacuum, as the layer is then a cavity. In particular close to the lower critical angles, the evanescent fields extend strongly into the exit medium. Based on this effect we suggest two new spectroscopic modalities, namely interference-enhanced internal reflection Raman spectroscopy and interference enhanced attenuated total reflection infrared spectroscopy. PMID- 29031124 TI - A relay identification fluorescence probe for Fe3+ and phosphate anion and its applications. AB - A simple relay identification fluorescence probe for Fe3+ and phosphate anion with "on-off-on" switching was designed and synthesized based on the phenylthiazole and biphenylcarbonitrile. Probe 1 displayed highly selective and sensitive recognition to Fe3+ in HEPES aqueous buffer (EtOH/H2O=2:8, v/v, pH=7.4) solutions. The optimized structures and HOMO and LUMO of probe 1 and [1-Fe3+] complex were obtained by the density functional theory (DFT) calculations with B3LYP as the exchange and correlation functional using a suite of Gaussian 09 programs. The [1-Fe3+] complex solution also showed a high selectivity toward PO43-. The lower limits of detection of probe 1 to Fe3+ and [1-Fe3+] complex to PO43- were estimated to 1.09*10-7M and 1.86*10-7M. Besides, the probe 1 also was used to detected the target ions in real water sample and living cells successfully. PMID- 29031125 TI - Low Protein Z levels in patients with plasma cell neoplasms are inversely correlated with IL-6 levels. AB - : Patients with multiple myeloma (MM) have an increased thrombotic risk, but pathogenesis remains uncertain. Low levels of Protein Z (PZ), a vitamin K dependent plasma protein, are associated with venous as well as arterial thrombosis. The purpose of this study was to analyze PZ levels in patients with plasma cell neoplasms. PATIENTS AND METHODS: The study consisted of 64 plasma cells neoplasm patients and 42 healthy individuals. Clinical investigations included measurement of plasma PZ and IL-6 levels. RESULTS: PZ levels in patients with plasma cell neoplasms were significantly lower compared to healthy controls in the entire cohort (1392+/-659 vs.2010+/-603ng/mL, P<0.01), as well as in specific disease subgroups; symptomatic MM (1428+/-652ng/mL, p<0.01), smoldering MM (1437+/-883ng/mL, p=0.045) and monoclonal gammopathy of undetermined significance (MGUS) (1247+/-593ng/mL, p=0.01). PZ was negatively correlated with IL-6 levels in MM patients (r=-0.7, P<0.01). There was no significant difference in PZ levels between patients with or without thrombotic event. CONCLUSION: Plasma cell neoplasm patients have low levels of PZ. This is presumably related to the increased IL-6 production by the bone marrow microenvironment, and could have a potential role in the increased thrombotic tendency in those patients. PMID- 29031126 TI - Artesunate induces apoptosis via inhibition of STAT3 in THP-1 cells. AB - OBJECTIVE: Our objective was to explore STAT3 expression in patients with acute myeloid leukaemia (AML), assess the anti-proliferative effects of artesunate (ART) on THP-1 cells in vivo and in vitro, and investigate the underlying mechanisms. METHODS: In this study, we examined 30 patients with acute myeloid leukaemia diagnosed in our hospital from January 2015 to January 2016. The 20 control group patients had non-haematological diseases and were hospitalized for the same period. We extracted 2ml bone marrow, separated the mononuclear cells, obtained total proteins, and detected STAT3 protein levels with Western blot analyses. The THP-1 cells were treated with different concentrations of ART(0, 10, 25, 50, 100, 200MUM). Then, THP-1 cell viability was detected with CCK-8 assays, apoptosis was measured with flow cytometry, and the STAT3, caspase-3 and caspase-8 protein levels were assessed using Western blot analyses. THP-1 cells in logarithmic growth phase were subcutaneously injected into the necks of 5-week old nude mice. The control group was subcutaneously injected with 0.1ml PBS. After the nude mouse tumours grew, the mice were divided into the control group and drug intervention groups (ART 100MUM group, ART 200MUM group). The mice in the intervention groups were intraperitoneally injected with ART, and the control group was injected with the same amount of normal saline. Then, changes in the tumours were observed. After the drug intervention, the total protein was extracted, and STAT3 expression was detected by Western blot analysis. RESULTS: Compared with the control group, the AML patients had significantly increased STAT3 protein levels (P<0.01). ART significantly inhibited the proliferation of THP-1 cells in a dose-dependent and time-dependent manner. ART also increased THP 1cell apoptosis. After treatment with ART, STAT3 protein was significantly down regulated, and apoptosis of the cells was induced by the activation of caspase-3 and caspse-8. CONCLUSION: AML patients had higher expression of STAT3 than that of the controls. ART induced apoptosis in THP-1 cells and inhibited the growth of xenografts in nude mice, and we also observed that ART down-regulated the expression of STAT3 and activated the caspase-3 and caspase-8. We speculated that the effect of ART on THP-1 cells may be related to inhibition of STAT3 and activation of caspase3 and caspase-8. PMID- 29031127 TI - Patients' perceptions and experiences of living with a surgical wound healing by secondary intention: A qualitative study. AB - BACKGROUND: Most surgical wounds heal by primary intention, that is to say, the edges of the wound are brought together with sutures, staples, adhesive glue or clips. However, some wounds may be left open to heal (if there is a risk of infection, or if there has been significant tissue loss), and are known as 'surgical wounds healing by secondary intention'. They are estimated to comprise approximately 28% of all surgical wounds and are frequently complex to manage. However, they are under researched and little is known of their impact on patients' lives. OBJECTIVES: To explore patients' views and experiences of living with a surgical wound healing by secondary intention. DESIGN: A qualitative, descriptive approach. SETTINGS: Participants were recruited from acute and community nursing services in two locations in the North of England characterised by high levels of deprivation and diverse populations. PARTICIPANTS: Participants were aged 18 years or older and had at least one surgical wound healing by secondary intention, which was slow to heal. Purposeful sampling was used to include patients of different gender, age, wound duration and type of surgery (general, vascular and orthopaedic). Twenty people were interviewed between January and July 2012. METHODS: Semi-structured interviews were conducted, guided by use of a topic guide developed with input from patient advisors. Data were thematically analysed using steps integral to the 'Framework' approach to analysis, including familiarisation with data; development of a coding scheme; coding, charting and cross comparison of data; interpretation of identified themes. FINDINGS: Alarm, shock and disbelief were frequently expressed initial reactions, particularly to "unexpected" surgical wounds healing by secondary intention. Wound associated factors almost universally had a profound negative impact on daily life, physical and psychosocial functioning, and wellbeing. Feelings of frustration, powerlessness and guilt were common and debilitating. Patients' hopes for healing were often unrealistic, posing challenges for the clinicians caring for them. Participants expressed dissatisfaction with a perceived lack of continuity and consistency of care in relation to wound management. CONCLUSIONS: Surgical wounds healing by secondary intention can have a devastating effect on patients, both physical and psychosocial. Repercussions for patients' family members can also be extremely detrimental, including financial pressures. Health care professionals involved in the care of patients with these wounds face multiple, complex challenges, compounded by the limited evidence base regarding cost-effectiveness of different treatment regimens for these types of wounds. PMID- 29031128 TI - Electrochemically mediated in situ growth of electroactive polymers for highly sensitive detection of double-stranded DNA without sequence-preference. AB - The ability to directly detect double-stranded DNA (dsDNA) without sequence preference continues to be a major challenge. Herein, we report an electrochemical method for the direct, highly sensitive detection of dsDNA based on the strand replacement of dsDNA by peptide nucleic acid (PNA) and the in situ growth of electroactive polymers through the surface-initiated electrochemically mediated atom transfer radical polymerization (SI-eATRP). Thiolated PNA molecules are firstly self-assembled onto gold electrode surface for the specific recognition of target dsDNA (dsDNA-T), which in turn leads to the formation of a high density of PNA/DNA heteroduplexes on the electrode surface for the subsequent attachment of ATRP initiators via the phosphate-Zr4+-carboxylate chemistry. By applying a negative potential to the electrode, the air-stable CuII deactivators can be reduced into the CuI activators so as to trigger the surface initiated polymerization for the in situ growth of electroactive polymers. Due to the strand replacement of dsDNA by PNA, dsDNA can be directly detected without sequence-preference. Besides, the growth of polymers enables the modification of numerous electroactive probes, thereby greatly improving the electrochemical signal. Under optimal conditions, a good linearity between the electrochemical signal and the logarithm of dsDNA-T concentration over the range from 1.0 fM to 1.0nM, with a detection limit of 0.47 fM, can be obtained. Results indicate that it is highly selective, and holds high anti-interference capability in the presence of human serum samples. Therefore, this method offers great promises in providing a universal and efficient solution for the direct detection of dsDNA. PMID- 29031129 TI - A dual-type responsive electrochemical immunosensor for quantitative detection of PCSK9 based on n-C60-PdPt/N-GNRs and Pt-poly (methylene blue) nanocomposites. AB - In this study, a dual-type responsive electrochemical immunosensor was developed for the quantitative detection of proprotein convertase subtilisin/kexin type 9 (PCSK9), a potential biomarker of cardiovascular disease in serum. N-doped graphene nanoribbons (N-GNRs) with good conductivity were used as the sensing matrix modifying the glassy carbon electrode. Palladium platinum alloy (PdPt) nanoparticles with high catalytic performance toward the reduction of hydrogen peroxide (H2O2) were reduced onto amino-functionalized fullerene (n-C60-PdPt) and significantly amplified the electrochemical signal recorded by the amperometric i t curve. Furthermore, staphylococcus protein A (SPA) with antibody orientation function was introduced to improve the immunoreaction efficiency. Accordingly, a label-free immunosensor was fabricated based on n-C60-PdPt/N-GNRs for the quick detection of PCSK9. Meanwhile, to realize ultrasensitive detection of PCSK9, Pt poly (methylene blue) (Pt-PMB) nanocomposites synthesized by a one-pot method for the first time were used as a novel signal label, which exhibited uniform morphology as well as good conductivity and produced an electrochemical signal recorded by differential pulse voltammetry (DPV). Herein, a novel sandwich-type immunosensor was designed using n-C60-PdPt/N-GNRs as the sensing matrix and Pt PMB as the signal label for sensitive detection of PCSK9. Under optimal conditions, the label-free immunosensor showed a linear range of 10pgmL-1 to 100ngmL -1 with a detection limit of 3.33pgmL-1 (S/N=3), and the sandwich-type immunosensor exhibited a linear range of 100 fg mL-1 to 100ngmL -1 with a detection limit of 0.033pgmL-1 (S/N=3) for PCSK9 detection, indicating its potential application in clinical bioassay analysis. PMID- 29031130 TI - A Validated Prognostic Biomarker Score for Adult Patients with Nonmetastatic Soft Tissue Sarcomas of the Trunk and Extremities. AB - BACKGROUND: The prognostic value of serum biomarkers in soft tissue sarcoma (STS) is limited, and its clinical applicability is compromised by a common inability to adjust for important confounders. The aim of this study was to determine the prognostic value of pretreatment biomarkers on disease-specific survival (DSS) adjusted for confounders. METHODS: The study included 818 patients with localized STS. Pretreatment levels of albumin, C-reactive protein, hemoglobin, neutrophils, and lymphocytes were tested individually and combined in prognostic scores: neutrophil/lymphocyte ratio (NLR), Glasgow Prognostic Score (GPS), and Aarhus Composite Biomarker Score (ACBS) which includes all five biomarkers. Patients were randomly split into a test cohort and a validation cohort. The prognostic value of biomarkers on DSS was estimated using crude and adjusted Cox proportional hazard models. The different biomarker scores were compared using Akaike's information criteria. RESULTS: In the test cohort of 403 patients, all biomarkers except lymphocyte count were significant prognostic factors for DSS also after adjusting for confounders. NLR, GPS, and ACBS were independently associated with decreased survival; however, ACBS was significantly superior to NLR (P=.02) and GPS (P=.002). These findings were validated in the randomly assigned validation cohort of 415 patients. In the pooled data of 818 patients, the ACBS performed better than GPS and NLR. ACBS 2 was independently associated with decreased DSS compared to ACBS 0, hazard ratio 2.3[95% confidence interval: 1.5-3.5], P<.001. CONCLUSION: Patients with abnormal values in more than one serum biomarkers had a significant additional risk of dying compared to patients with only one abnormal value. ACBS was validated as an independent prognostic factor that is superior to both NLR and GPS. PMID- 29031131 TI - Depression, sleep problems, and perceived stress among informal caregivers in 58 low-, middle-, and high-income countries: A cross-sectional analysis of community based surveys. AB - Caregiving has been associated with adverse health outcomes. However, there is a paucity of multi-country, population-based studies on mental health outcomes of caregivers especially from low- and middle-income countries (LMICs). Thus, we assessed the association of caregiving with depression, sleep problems, and perceived stress in 10 high-, 27 middle-, and 21 low-income countries. Cross sectional community-based data of the World Health Survey including 258,793 adults aged >=18 years were analyzed. Multivariable logistic and linear regression analyses were conducted to explore the association of past 12-month caregiving with past 12-month DSM-IV depression, and past 30-day perceived stress [range 0 (low)-100 (high)] and severe/extreme sleep problems. Nearly 20% of the individuals were engaged in caregiving with particularly high rates observed in high-income countries (HICs) (e.g., Finland 43.3%). Across the entire sample, after adjustment for potential confounders, caregivers had a significantly higher likelihood of having depression (OR = 1.54; 95%CI = 1.37-1.73), sleep problems (OR = 1.37; 95%CI = 1.25-1.50), while their mean perceived stress score was 3.15 (95%CI = 2.46-3.84) points higher. These associations tended to be stronger in HICs. A greater number of caregiving activities was associated with a greater likelihood of depression, sleep problems, and perceived stress regardless of country income levels. In conclusion, caregiving has a negative impact on mental health worldwide with possibly greater effects in HICs. Given the growing contribution of caregivers in long-term care, interventions and policies to alleviate the mental health burden of caregivers are urgently needed to maintain sustainable and effective care practices. PMID- 29031133 TI - NMR diffusometry data sampling optimization for mixture analysis. AB - NMR diffusometry is a powerful but challenging method to analyze complex mixture. Each component diffuses differently, from the faster small species to the slower large species, corresponding to different signal attenuation. However, the method is highly sensitive to the quality of the acquired data and the performance of the processing used to resolve multiexponential signals influences. Adapting the signal decay sampling to the mixture composition is one way to improve the precision of the measure. In this work, we propose a prediction tool, based on the calculation of the Cramer-Rao lower bound to minimize the variance of diffusion coefficient estimation in order to determine the optimal number of diffusion gradient steps, the best diffusion gradient sampling (among linear, exponential, quadratic and sigmoidal ones) and the optimal maximum diffusion factor. The tool was validated experimentally on a unimer/micelle solution of sodium dodecyl sulfate and on Caelyx(r), a commercial liposomal preparation containing a mixture of pegylated-liposomes and sucrose. PMID- 29031132 TI - Effectiveness of policy changes to reduce harm from unrecorded alcohol in Russia between 2005 and now. AB - BACKGROUND: Consumption of unrecorded alcohol (alcohol that is not taxed and reflected in official statistics, but consumed as a beverage) has been identified as one of the main contributors to alcohol-attributable premature mortality in Russia. The problem was highlighted by a recent a mass poisoning with surrogate alcohol occurred in the Siberian city of Irkutsk. METHODS: Based on key publications and legislative documents, a narrative review was undertaken about alcohol-related harm reduction policies in Russia for the period between 2005 and 2017, as well as the impact of these policies on the recorded and unrecorded alcohol consumption and alcohol market. RESULTS: Various policy measures mainly targeting availability and price of recorded and unrecorded alcohol have been introduced since 2005, which generally coincided with the decreases in alcohol related mortality observed at that time. However, regulations on medicinal and cosmetic products have remained inconsistent providing the foundations for the continued existence of a legal industry of surrogates with broad availability and misuse. CONCLUSION: The Russian experiences of introducing alcohol policies demonstrate that there are effective measures to reduce unrecorded alcohol consumption and attributable harm. The government's multi-level strategy of alcohol consumption and harm reduction should be pursued stringently and all the possible loop-holes for producers, sellers and distributors of illegal and/or unrecorded alcohol should be eliminated or at least critically reduced. PMID- 29031134 TI - The positive relationships between plant coverage, species richness, and aboveground biomass are ubiquitous across plant growth forms in semi-steppe rangelands. AB - The positive relationships between biodiversity and aboveground biomass are important for biodiversity conservation and greater ecosystem functioning and services that humans depend on. However, the interaction effects of plant coverage and biodiversity on aboveground biomass across plant growth forms (shrubs, forbs and grasses) in natural rangelands are poorly studied. Here, we hypothesized that, while accounting for environmental factors and disturbance intensities, the positive relationships between plant coverage, biodiversity, and aboveground biomass are ubiquitous across plant growth forms in natural rangelands. We applied structural equation models (SEMs) using data from 735 quadrats across 35 study sites in semi-steppe rangelands in Iran. The combination of plant coverage and species richness rather than Shannon's diversity or species diversity (a latent variable of species richness and evenness) substantially enhance aboveground biomass across plant growth forms. In all selected SEMs, plant coverage had a strong positive direct effect on aboveground biomass (beta = 0.72 for shrubs, 0.84 for forbs and 0.80 for grasses), followed by a positive effect of species richness (beta = 0.26 for shrubs, 0.05 for forbs and 0.09 for grasses), and topographic factors. Disturbance intensity had a negative effect on plant coverage, whereas it had a variable effect on species richness across plant growth forms. Plant coverage had a strong positive total effect on aboveground biomass (beta = 0.84 for shrubs, 0.88 for forbs, and 0.85 for grasses), followed by a positive effect of species richness, and a negative effect of disturbance intensity across plant growth forms. Our results shed light on the management of rangelands that is high plant coverage can significantly improve species richness and aboveground biomass across plant growth forms. We also found that high disturbance intensity due to heavy grazing has a strong negative effect on plant coverage rather than species richness in semi-steppe rangelands. This study suggests that proper grazing systems (e.g. rotational system) based on carrying capacity and stocking rate of a rangeland may be helpful for biodiversity conservation, better grazing of livestock, improvement of plant coverage and enhancement of aboveground biomass. PMID- 29031135 TI - Shared agenda making for quality improvement; towards more synergy in maternity care. AB - OBJECTIVES: Professionals in maternity care have started working in a network approach. To further enhance the efficacy of this multidisciplinary maternity network, the identification of priorities for improvement is warranted. The aim of this study was to create key recommendations for the improvement agenda, in co production with patients and professionals. STUDY DESIGN: We conducted a Delphi study to inventory (round 1), prioritize (round 2) and eventually approve (round 3) the improvement agenda for the maternity network. Both patients and professionals joined this study. Initial input for the study consisted of experiences from 397 patients, collected using the ReproQ questionnaire. In round 1, the expert panel, gave improvement recommendations, based on the ReproQ results. This resulted in 11 recommendations. In the second round, the expert panel prioritised these recommendations. In the consensus meeting then finally the concrete improvement agenda was composed. RESULTS: Priority scores differed considerably between patients and professionals in seven items, while four items received similar priority scores from both groups. The four most important improvement activities were: Realise more single bedrooms in hospitals; Create more opportunities for the continued presence of the community midwife during labour; Initiate a digital patient record view system for the network with a view function for patients; and Introduce a case manager for pregnant woman. CONCLUSION: Based on patient experience and the active involvement of patients and professionals, we were able to compose the shared agenda for quality improvement in maternity care. PMID- 29031136 TI - Increased sensory noise and not muscle weakness explains changes in non-stepping postural responses following stance perturbations in healthy elderly. AB - The response to stance perturbations changes with age. The shift from an ankle to a hip strategy with increasing perturbation magnitude occurs at lower accelerations in older than in young adults. This strategy shift has been related to age-related changes in muscle and sensory function. However, the effect of isolated changes in muscle or sensory function on the responses following stance perturbations cannot be determined experimentally since changes in muscle and sensory function occur simultaneously. Therefore, we used predictive simulations to estimate the effect of isolated changes in (rates of change in) maximal joint torques, functional base of support, and sensory noise on the response to backward platform translations. To evaluate whether these modeled changes in muscle and sensory function could explain the observed changes in strategy; simulated postural responses with a torque-driven double inverted pendulum model controlled using optimal state feedback were compared to measured postural responses in ten healthy young and ten healthy older adults. The experimentally observed peak hip angle during the response was significantly larger (5 degrees ) and the functional base of support was smaller (0.04m) in the older than in the young adults but peak joint torques and rates of joint torque were similar during the recovery. The addition of noise to the sensed states in the predictive simulations could explain the observed increase in peak hip angle in the elderly, whereas changes in muscle function could not. Hence, our results suggest that strength training alone might be insufficient to improve postural control in elderly. PMID- 29031137 TI - The association between habitual walking speed and medial femoral cartilage deformation following 30minutes of walking. AB - Habitual walking speed is a key functional outcome that has implications for knee biomechanics that occur during gait. Lower extremity biomechanics during walking affects the loading of the femoral cartilage. Ultrasonography (US) can be used to assess resting femoral cartilage thickness and acute cartilage deformation in response to walking. The purpose of this study was to determine the association between habitual walking speed and both resting femoral cartilage thickness and deformation. Twenty-four healthy participants with no history of knee injury volunteered for this study. Habitual walking speed was assessed with a 20-m walk test. Femoral cartilage thickness was assessed with US in the medial condyle, lateral condyle, and intercondylar regions prior to and immediately following 30min of walking. Femoral cartilage deformation was calculated as the percent change in cartilage thickness acutely following the walking protocol. Separate Pearson product moment correlations were used to assess the association between habitual walking speed and each US cartilage variable. Slower habitual walking speed was significantly associated with greater medial femoral cartilage deformation (r=0.48, P=0.018), but not with lateral and intercondylar deformation. Habitual walking speed was not significantly associated with the resting cartilage thickness in any cartilage region. These findings highlight the in vivo association between walking speed and medial femoral cartilage deformation. When controlling for body mass index, the association between walking speed and medial cartilage deformation was weakened (Deltar=-0.12). Future studies are needed to determine the extent to which BMI influences the association between walking speed and cartilage deformation. PMID- 29031138 TI - Similarity of muscle synergies extracted from the lower limb including the deep muscles between level and uphill treadmill walking. AB - This study aimed to examine muscle synergies involving the deeper muscles of the lower limb during level and uphill treadmill walking. Seven men and five women walked on a treadmill at three speeds (60, 80, and 100m/min) and two grades (level and 10% grade). Surface electromyographic (EMG) signals were recorded from 10 muscles of the lower limb, including vastus intermedius, adductor magnus, and adductor longus. Muscle synergies were extracted applying non-negative matrix factorization, and the relative co-activation across muscles and the temporal information of synergy recruitment were identified by the muscle synergy vector and synergy activation coefficient, respectively. Correlation coefficients between a pair of synergy vectors during level and uphill walking were analyzed as a similarity index, with the similarity criterion at r=0.76. Changes in synergy activation coefficients between the walking conditions were evaluated by cross-correlation analysis. The mean number of synergies ranged from 3.8 to 4.0 across all conditions, and they were not significantly different between level and uphill walking conditions. Similarity between walking conditions was high (r>0.76) for three muscle synergies, but not for one synergy that mainly consisted of the quadriceps femoris. The inter-condition similarity of the synergy activation coefficients was high for the four synergies, and a significant lag time for synergy 2, which consisted mainly of the activity of medial gastrocnemius, was found at 60 and 80m/min. The muscle synergies extracted from the lower limb involving the deeper muscles appear to be consistent during level and uphill treadmill walking. PMID- 29031139 TI - Biomechanics of the infant foot during the transition to independent walking: A narrative review. AB - Recognising structural and functional development of the paediatric foot is fundamental to ensuring a strong theoretical framework for health professionals and scientists. The transition of an infant from sitting to walking takes approximately 9 months and is when the structures and function of the foot must respond to the challenges of bearing load; becoming increasingly more essential for locomotion. Literature pertaining to the phase of development was searched. A narrative approach synthesised the information from papers written in English, with non-symptomatic infant participants up to the development stage of independent walking or two years of age. A range of literature was identified documenting morphological, physiological, neuromuscular and biomechanical aspects of the infant within this phase of development. The progression of variable gait to a regular pattern is documented within a range of studies focusing on neuromuscular control and ambulation development. However, methodological approaches may have compromised the external validity of such data. Additionally, limited consideration for the specific function and development of the foot is evident, despite its role as the primary site of weight bearing and interface with the floor. A lack of consideration of infants prior to ambulation (i.e. before cruising or walking) is also apparent which prevents a reference baseline being used effectively. This review also identifies future research priorities such that a comprehensive understanding of foot development from a non-weight bearing to a weight bearing structure during locomotor advancement can be gained. PMID- 29031140 TI - The effects of real and artificial Leg Length Discrepancy on mechanical work and energy cost during the gait. AB - BACKGROUND: The impacts of Leg Length Discrepancy (LLD) on the kinematic and dynamic parameters of walking have been widely discussed. But little is known on total mechanical work and energy cost. These two variables are more representative of the functional impairment undergone by the LLD patients. AIM: To assess the changes of the mechanical work and energy cost of walking in subjects with real LLD and to compare their results with healthy subjects in whom the LLD has been simulated. METHOD: The mechanical work and energy cost data of 60 healthy subjects (speed: 4km/h) with artificial LLD induced by soles (2 and 4cm), 20 patients (speed: 3.75+/-0.5km/h) with real LLD and 20 matched subjects (speed: 3.75+/-0.5km/h) were collected. Statistical comparisons between the groups were performed using a t-paired test and ANOVA. RESULTS: Patients with a real LLD showed a significant decrease in mechanical work and energy cost when compared to norms. Patients with real LLD provide a better recovery when compared to subjects with artificial LLD of 2cm, and a decrease of energy cost and higher muscular efficiency (mechanical work/energy cost) when compared to subjects with artificial LLD of 4cm. CONCLUSIONS: Our results showed that patients with a real LLD develop compensatory strategies during gait, probably to minimize the displacement of the body center of mass and consequently reduce the amount of energy expenditure useful for their displacement. Moreover, they adopt a better gait strategy compared to the subjects in whom LLD was simulated. PMID- 29031141 TI - Analysis of spastic gait in cervical myelopathy: Linking compression ratio to spatiotemporal and pedobarographic parameters. AB - BACKGROUND: Gait dysfunction associated with spasticity and hyperreflexia is a primary symptom in patients with compression of cervical spinal cord. The objective of this study was to link maximum compression ratio (CR) to spatiotemporal/pedobarographic parameters. METHODS: Quantitative gait analysis was performed by using a pedobarograph in 75 elderly males with a wide range of cervical compression severity. CR values were characterized on T1-weighted magnetic resonance imaging (MRI). Statistical significances in gait analysis parameters (speed, cadence, stride length, step with, and toe-out angle) were evaluated among different CR groups by the non-parametric Kruskal-Wallis test followed by the Mann-Whitney U test using Bonferroni correction. The Spearman test was performed to verify correlations between CR and gait parameters. RESULTS: The Kruskal-Wallis test revealed significant decline in gait speed and stride length and significant increase in toe-out angle with progression of cervical compression myelopathy. The post-hoc Mann-Whitney U test showed significant differences in these parameters between the control group (0.4580%). Relative sensitivity was highest on CE and lowest on T2w. CONCLUSIONS: Whole-body MR performed well in detecting malignant lesions compared to PET-CT. CE showed overall highest performance. PMID- 29031210 TI - Effect of photoactivated riboflavin on the biodegradation-resistance of root dentin collagen. AB - This study was conducted to evaluate the effect of UVA-activated 1% riboflavin solution on structural integrity; mechanical properties and stability; and collagenase-mediated collagen solubilisation resistance of demineralized root dentin collagen matrix. Root dentin specimens demineralized with 17% EDTA for 7days were treated with 1% RF for 1min followed by UVA photo-activation at intensity 7mW/cm2 for 1min. Control specimens were completely devoid of riboflavin and/or UVA treatments. Specimens were challenged with bacterial collagenase type-I solution for different time-periods at 37 degrees C. Collagen solubilisation resistance was evaluated in terms of hydroxyproline (HYP) liberation. Mechanical characterization of dentin specimens before and after 24h of exposure to collagenase solution was done in terms of apparent-elastic modulus (Eappr) and ultimate tensile strength (UTS). Variations in dentin collagen network structure with exposure time in collagenase were visualized by TEM. Crosslinking dentin with UVA-activated riboflavin significantly decreased HYP release and increased Eappr and UTS compared to control specimens with storage time in collagenase. Moreover, crosslinked specimens showed higher structural resistance to collagenase effect reflected from dense, well-formed collagen fibrils-network with characteristic collagen cross-banding. UVA-activated riboflavin treatment increased collagenase-mediated collagen degradation resistance and enhanced mechanical stability against collagenase challenges of root dentin after EDTA demineralization. PMID- 29031211 TI - Cyanidin-3-O-glucoside inhibits the UVB-induced ROS/COX-2 pathway in HaCaT cells. AB - Ultraviolet (UV) radiation from sunlight, especially UVB (290-320nm), is one of the most important environmental factors that destroys the integrity of the skin and causes epidermal cell apoptosis, potentially even leading to skin cancer. UVB irradiation can cause skin damage by stimulating inflammatory and apoptotic pathways. Anthocyanins are flavonoids that are common in many vegetable foods, and have also demonstrated chemopreventive effects. Cyanidin-3-O-glucoside, as a typical anthocyanin, exhibits anti-inflammatory and anti-oxidant effects. This study aimed to investigate the effects, as well as the underlying mechanisms, of treating UVB-exposed HaCaT cells with Cyanidin-3-O-glucoside. We demonstrated that Cyanidin-3-O-glucoside could effectively prevent the UVB-induced apoptosis of HaCaT cells. This protective effect can be explained by the scavenging of ROS and the suppression of COX-2 expression by interaction with the MAPK and Akt signaling pathways. Furthermore, we used Celecoxib as a positive control, and results showed that Cyanidin-3-O-glucoside was more effective at decreasing EGFR phosphorylation than Celecoxib, which translated into a stronger inhibitory effect against the downstream elements p38, ERK, and JNK. Taken together, these results indicate that Cyanidin-3-O-glucoside can protect HaCaT cells against UVB radiation, which could provide a basis for the development of a potent nutritional therapy for UVB-induced skin disorders. PMID- 29031212 TI - A comprehensive analysis of direct and photosensitized attenuation of Toxoplasma gondii tachyzoites. AB - In the present work, we have evaluated the effect of three different types of radiation: UVC (254+/-5nm), UVA (365+/-20nm) and visible (420+/-20nm) on different morphological and biological functions of Toxoplasma gondii tachyzoites. Briefly, UVC and UVA showed an inhibitory effect on parasite invasion in a dose-dependent manner. UVC showed the strongest effect inducing both structural damage (antigens) and functional inhibition (i.e., invasion and replication). On its own, visible light induces a quite distinctive and selective pattern of parasite-attenuation. This type of incident radiation inhibits the replication of the parasite affecting neither the capability of invasion/attachment nor the native structure of proteins (antigens) on parasites. Such effects are a consequence of photosensitized processes where phenol red might act as the active photosensitizer. The potential uses of the methodologies investigated herein are discussed. PMID- 29031213 TI - Impairment of heart rhythm complexity in patients with drug-resistant epilepsy: An assessment with multiscale entropy analysis. AB - OBJECTIVE: Epilepsy and seizures can have dramatic effects on the cardiac function. The aim of this study was to investigate the heart rhythm complexity in patients with drug-resistant epilepsy (DRE). METHODS: Ambulatory 24-h electrocardiograms (ECG) from 70 DRE patients and 50 healthy control subjects were analyzed using conventional heart rate variability (HRV) and multiscale entropy (MSE) methods The variation of complexity indices (CI), which was calculated from MSE profile, was determined. RESULTS: DRE patients had significantly lower time domain (Mean RR, SDNN, RMSSD, pNN50) and frequency domain (VLF, LF, HF, TP) HRV measurements than healthy controls. Of the MSE analysis, MSE profile, CI including Slope 5, Area 1-5, Area 6-15 and Area 6-20 were significantly lower than those in the healthy control group. In receiver operating characteristic (ROC) curve analysis, VLF had the greatest discriminatory power for the two groups. In both net reclassification improvement (NRI) model and integrated discrimination improvement (IDI) models, CI derived from MSE profiles significantly improved the discriminatory power of Mean RR, SDNN, RMSSD, pNN50, VLF, LF, HF and TP. SIGNIFICANCE: The heart rate complexity is impaired for DRE patients. CI are useful to discriminate DRE patients from subjects with normal cardiac complexity. These findings indicate that MSE method may serve as a complementary approach for characterizing and understanding abnormal heart rate dynamics in epilepsy. Furthermore, the CI may potentially be used as a biomarker in monitoring epilepsy. PMID- 29031215 TI - Comprehensive multipathway risk assessment of chemicals associated with recycled ("crumb") rubber in synthetic turf fields. AB - BACKGROUND: Thousands of synthetic turf fields in the US are regularly used by millions of individuals (particularly children and adolescents). Although many safety assessments have concluded that there are low or negligible risks related to exposure to chemicals found in the recycled rubber used to make these fields, concerns remain about the safety of this product. Existing studies of recycled rubber's potential health risks have limitations such as small sample sizes and limited evaluation of relevant exposure pathways and scenarios. OBJECTIVE: Conduct a comprehensive multipathway human health risk assessment (HHRA) of exposure to chemicals found in recycled rubber. METHODS: All available North American data on the chemical composition of recycled rubber, as well as air sampling data collected on or near synthetic turf fields, were identified via a literature search. Ingestion, dermal contact, and inhalation pathways were evaluated according to US Environmental Protection Agency (US EPA) guidance, and exposure scenarios for adults, adolescents, and children were considered. RESULTS: Estimated non-cancer hazards and cancer risks for all the evaluated scenarios were within US EPA guidelines. In addition, cancer risk levels for users of synthetic turf field were comparable to or lower than those associated with natural soil fields. CONCLUSIONS: This HHRA's results add to the growing body of literature that suggests recycled rubber infill in synthetic turf poses negligible risks to human health. This comprehensive assessment provides data that allow stakeholders to make informed decisions about installing and using these fields. PMID- 29031214 TI - Land use regression models for the oxidative potential of fine particles (PM2.5) in five European areas. AB - Oxidative potential (OP) of particulate matter (PM) is proposed as a biologically relevant exposure metric for studies of air pollution and health. We aimed to evaluate the spatial variability of the OP of measured PM2.5 using ascorbate (AA) and (reduced) glutathione (GSH), and develop land use regression (LUR) models to explain this spatial variability. We estimated annual average values (m-3) of OPAA and OPGSH for five areas (Basel, CH; Catalonia, ES; London-Oxford, UK (no OPGSH); the Netherlands; and Turin, IT) using PM2.5 filters. OPAA and OPGSH LUR models were developed using all monitoring sites, separately for each area and combined-areas. The same variables were then used in repeated sub-sampling of monitoring sites to test sensitivity of variable selection; new variables were offered where variables were excluded (p > .1). On average, measurements of OPAA and OPGSH were moderately correlated (maximum Pearson's maximum Pearson's R = = .7) with PM2.5 and other metrics (PM2.5absorbance, NO2, Cu, Fe). HOV (hold-out validation) R2 for OPAA models was .21, .58, .45, .53, and .13 for Basel, Catalonia, London-Oxford, the Netherlands and Turin respectively. For OPGSH, the only model achieving at least moderate performance was for the Netherlands (R2 = .31). Combined models for OPAA and OPGSH were largely explained by study area with weak local predictors of intra-area contrasts; we therefore do not endorse them for use in epidemiologic studies. Given the moderate correlation of OPAA with other pollutants, the three reasonably performing LUR models for OPAA could be used independently of other pollutant metrics in epidemiological studies. PMID- 29031216 TI - Description of Neoparamoeba longipodia n. sp. and a new strain of Neoparamoeba aestuarina (Page, 1970) (Amoebozoa, Dactylopodida) from deep-sea habitats. AB - Two strains of lobose amoebae have been isolated from the deep-sea bottom sediments of the Sea of Japan (3.6km deep) and Western Atlantic Ocean (5.1km deep). Amoebae of both strains have a dactylopodial mophotype, intracellular kinetoplastid symbiont (Perkinsela-like organism) and have no microscales on the cell surface. The morphology and molecular data of the Sea of Japan strain allow us to unambiguously identify it as Neoparamoeba aestuarina (Page, 1970). At the same time, the Atlantic strain is described as a new species Neoparamoeba longipodia as it differs from other species of the genus Neoparamoeba in morphology and gene sequence data. The data presented expand the range of known habitats for the genus Neoparamoeba and permit further analysis of the phylogenetic relationships within this clade with the expanded set of molecular data. PMID- 29031218 TI - Termination patterns of stimulus-induced rhythmic, periodic, or ictal patterns and spontaneous electrographic seizures. AB - OBJECTIVE: To investigate the ability of the evolution and termination patterns to distinguish stimulus-induced rhythmic, periodic, or ictal discharges (SIRPIDs) from spontaneous electrographic seizures, a challenge to the neurophysiologist and clinician. METHODS: We screened the prospectively collected database of patients undergoing continuous EEG (cEEG) and identified 25 cases of SIRPIDs. We compared patients with SIRPIDs to 25 patients with spontaneous seizures. Two experienced neurophysiologists graded the termination pattern of both on fast fourier transform (FFT) as "abrupt" or "sputtering." RESULTS: The identification of a "sputtering" or cyclical tapering pattern accurately discriminated SIRPIDs from spontaneous seizures with 88% sensitivity and 87% specificity, yielding a positive predictive value of 82% for SIRPIDs when the pattern was present (negative predictive value 87% when the sputtering termination was not seen). Similarly, the identification of an "abrupt" termination pattern identified clinically determined seizures with 84% sensitivity and 88% specificity. CONCLUSIONS: The termination pattern quickly and accurately distinguishes SIRPIDs from spontaneous seizures, suggesting that at least some SIRPIDs have an underlying mechanism distinct from that of spontaneous seizures. SIGNIFICANCE: If validated in other studies, the use of evolution and termination patterns to classify EEG patterns as epileptiform seizures versus SIRPIDs will help guide treatment of these patients. PMID- 29031217 TI - Quality of life and burden in caregivers of youth with obsessive-compulsive disorder presenting for intensive treatment. AB - BACKGROUND: Pediatric obsessive-compulsive disorder (OCD) is associated with deleterious familial effects; caregivers are often enmeshed in the disorder and can experience considerable burden and decreased quality of life (QoL). Consequently, this study examined burden and QoL in caregivers of youth with OCD enrolled in an intensive outpatient or partial hospitalization program. METHOD: The relationships between caregiver QoL and burden and the following variables were investigated: OCD symptom severity, functioning (youth functional impairment, general family functioning), family (family accommodation, parental relationship satisfaction, positive aspects of caregiving), and comorbid psychopathology (caregiver anxiety and depressive symptoms, youth internalizing and externalizing behaviors). Seventy-two child and caregiver dyads completed clinician- and self-rated questionnaires. RESULTS: Components of caregiver QoL correlated with caregiver-rated functional impairment, family accommodation, youth externalizing behaviors, and caregiver psychopathology. Aspects of caregiver burden correlated with child OCD symptom severity, functional impairment related to OCD, as well as caregiver and child comorbid psychopathology. Caregiver depressive symptoms predicted caregiver QoL, and caregiver depressive symptoms and child externalizing symptoms both predicted caregiver burden. Caregiver burden did not mediate the relationship between obsessive-compulsive symptom severity and caregiver QoL. CONCLUSION: Ultimately, elucidating factors associated with increased caregiver burden and poorer QoL is pertinent for identifying at-risk families and developing targeted interventions. PMID- 29031219 TI - Long term correlation of subthalamic beta band activity with motor impairment in patients with Parkinson's disease. AB - OBJECTIVES: To investigate the long term association of subthalamic beta activity with parkinsonian motor signs. METHODS: We recruited 15 patients with Parkinson's disease undergoing subthalamic DBS for local field potential recordings after electrode implantation, and at 3 and 8months post-operatively using the implantable sensing enabled Activa PC+S (Medtronic). Three patients dropped out leaving 12 patients. Recordings were conducted ON and OFF levodopa at rest. Beta (13-35Hz) peak amplitudes were extracted, compared across time points and correlated with UPDRS-III hemibody scores. RESULTS: Peaks in the beta frequency band (13-35Hz) in the OFF medication state were found in all hemispheres. Mean beta activity was significantly suppressed by levodopa at all recorded time points (P<0.007) and individual beta power amplitude correlated with parkinsonian motor impairment across time points and dopaminergic states (pooled data; rho=0.25, P<0.001). CONCLUSIONS: Our results indicate that beta-activity is correlated with parkinsonian motor signs over a time period of 8months. SIGNIFICANCE: Beta-activity may be a chronically detectable biomarker of symptom severity in PD that should be further evaluated under ongoing DBS. PMID- 29031220 TI - Effects of glyphosate-based herbicide on pintado da Amazonia: Hematology, histological aspects, metabolic parameters and genotoxic potential. AB - Roundup Original(r) is an herbicide widely used in Mato Grosso's agriculture and it may contamine water bodies, being an unforeseen xenobiotic to aquatic organisms, particularly fish. This study investigated the effects on the hybrid fish jundiara (Leiarius marmoratus*Pseudoplatystoma reticulatum) of an environmentally relevant exposure to this herbicide. Glucose levels in liver, muscle and plasma decreased after exposure to 1.357mgL-1 of Roundup Original(r) (glyphosate nominal concentration), while glycogen levels reduced in liver and muscle for different times. Elevated cholesterol and triglycerides revealed an adaptive response. Protein and lactate levels also increased during the experiment, however no changes were observed for muscle lactate. Increment of the transaminases suggests damage to the liver cells. After 96hours of exposure, reductions in all hematological parameters were observed, whereas the micronucleus test findings showed genotoxic scenery. Histological analysis did not display pathological alterations of the hepatic tissue. The results obtained provide valuable data for noticing the effects of pollutants on non-target organisms. PMID- 29031221 TI - Effects of particulate matter from straw burning on lung fibrosis in mice. AB - OBJECTIVE: To investigate the impacts of particulate matter 2.5 (PM2.5) from straw burning on the acute exacerbation of lung fibrosis in mice and the preventive effects of N-acetylcysteine (NAC). METHODS: The composition, particle size, and 30-min concentration change in an exposure system of the PM2.5 from straw-burning were determined. Forty C57BL male mice were equally randomized to two groups: bleomycin (BLM)-induced lung fibrosis with an exposure to air (BLM+air) and BLM+PM2.5 groups. On day 7 after receiving intratracheal injection of BLM, mice were exposed to air or PM2.5 in an exposure system for 30min twice daily and then sacrificed after one-week or four-week exposure (10 mice/group). Mouse survival, lung histopathology, macrophage accumulation in the lung, and pro inflammatory cytokine levels in alveolar lavage fluid (ALF) were determined. RESULTS: PM2.5 from straw burning were mainly composed of organic matter (74.1%); 10.92% of the inorganic matter of the PM2.5 were chloride ion; 4.64% were potassium ion; other components were sulfate, nitrate, and nitrite. Particle size was 10nm-2MUm. Histopathology revealed a greater extent of inflammatory cell infiltration in the lung, widened alveolar septum, and lung fibrosis in the BLM+PM2.5 group than in the BLM+air group and a greater extent of those adverse effects after four-week than after one-week exposure to PM2.5. The BLM+PM2.5 group also showed macrophages containing particular matter and increased pulmonary collagen deposition as the exposure to PM2.5 increased. Interleukin (IL)-6 and TNF-alpha levels in ALF were significantly higher in the BLM+PM2.5 group than in the BLM+air group (P<0.05) and significantly higher after four-week exposure than after one-week exposure to PM2.5 (P<0.05). TGF-beta levels in ALF after four-week exposure were significantly higher in the BLM+PM2.5 group than in the BLM+air group (P<0.05). The levels of IL-6, TNF-alpha, and TGF-beta in peripheral serum were not significantly different in the BLM+PM2.5 and BLM+air groups. Lung hydroxyproline contents increased as the exposure to PM2.5 increased and were significantly higher after four-week than after one-week exposure (P=0.019). Exposure to PM2.5 did not affect the survival of normal mice (100%) but reduced the survival of mice with BLM-induced IPF (30%), whereas NAC extended the survival (70%, vs. BLM+PM2.5, P=0.032). CONCLUSION: Exposure of mice with BLM induced IPF to PM2.5 from straw burning exacerbated lung inflammation and fibrosis and increased mortality; NAC increased the mouse survival, indicating protective effects. PMID- 29031222 TI - Apolipoproteins adsorption and brain-targeting evaluation of baicalin nanocrystals modified by combination of Tween80 and TPGS. AB - To help baicalin pass across BBB and improve its targeting in brain, we designed a novel formulation strategy of baicalin nanocrystals that preferentially adsorbing apolipoprotein E (ApoE) and repelling protein adsorption of opsonins. Intravenous baicalin nanocrystals suspensions (BCL-NS) modified by different surfactant were prepared by high-pressure homogenization. The targeting potential of surface-modified BCL-NS with mean particles size of about 250nm was assessed by in vitro protein adsorption studies using two-dimensional polyacrylamide gel electrophoresis (2-D PAGE), and further evaluated in vivo pharmacokinetics. The protein adsorption results showed that BCL-NS/TPGS, BCL-NS/TW80 and BCL NS/TPGS+TW80 adsorbed very high amounts of apolipoproteins (ApoA-I, ApoA-II, ApoA IV, ApoC-III, ApoE, ApoJ) and relative low amounts of opsonins (fibrinogen, immunoglobulin heavy chain gamma, immunoglobulin light chain). The pharmacokinetics results demonstrated the AUC (0-infinity) in brain of the BCL NS/TW80+TPGS was 6.67 times as high as that of the BCL solution, and 2.59 times as high as that of the BCL-NS/TW80. It could be attributed to the most ApoE and Apo J adsorption indicative of strong BBB penetration, and least IgG gamma and fibrinogen loading minimizing the risk of hepatic uptake. Combination of TW80 and TPGS can be rational choice of surfactants of baicalin nanocrystals for brain targeting mediated by ApoE adsorption. PMID- 29031223 TI - Enhanced antibacterial activity and biocompatibility of zinc-incorporated organic inorganic nanocomposite coatings via electrophoretic deposition. AB - Increased use of reconstruction procedures in orthopedics has improved the life of patients undergoing surgery. However, surgical site infection remains a major challenge. Efforts were made to fabricate antibacterial surfaces with good biocompatibility. This present study aimed to fabricate zinc-incorporated chitosan/gelatin (CS/G) nanocomposite coatings on the titanium substrates via electrophoretic deposition (EPD). Physicochemical characterization confirmed that zinc was successfully deposited in a metallic oxide/salt complex status. Transmission electron microscopic (TEM) results observed formation of core-shell nanosized particles released from the coatings. The selected-area electron diffraction (SAED) pattern of the particles presented faces of ZnO with organic background. Mechanical tests showed improved tensile and shear bond strength between substrates and zinc-incorporated coating surfaces. Zinc-incorporated CS/G coatings presented antibacterial abilities against both Gram-negative E. coli and Gram-positive S. aureus in a concentration-dependent manner. The generation of ZnO/Zn2+ complex in the coatings may contribute to bacteria inhibition. In vitro study demonstrated that appropriate concentration of zinc could promote proliferative and osteogenic activities of rat bone marrow stromal cells. The present study suggested that zinc-incorporated CS/G coating was a promising candidate for surface modification of biomedical materials. PMID- 29031224 TI - Direct one-pot synthesis of cinnamaldehyde immobilized on gold nanoparticles and their antibiofilm properties. AB - The objective of the present study was to develop a one-pot strategy to synthesis gold nanoparticle complexes using cinnamaldehyde, a potent antibiofilm agent which in its free form, exhibits high volatility and unstable nature. Hence, we developed cinnamaldehyde gold nanoparticles (CGNPs) in a single step to overcome the limitations of free cinnamaldehyde. Furthermore, reduction abilities of cinnamaldehyde under different experimental conditions, that is, varying precursor concentrations of cinnamaldehyde and gold, metal salts, pH, temperature, and light sources, were investigated. UV-vis spectroscopy, transmission electron microscopy, attenuated total reflectance Fourier transform infrared spectroscopy, and dynamic light-scattering measurements revealed that heat influenced the nanoparticle formation in the presence of cinnamaldehyde, and as produced cinnamaldehyde immobilized on gold nanoparticles were spherical, monodispersed, and stable by surface charge. CGNPs containing 0.01% cinnamaldehyde by weight exhibited effective biofilm inhibition of up to >80% against Gram positive bacteria (methicillin-sensitive and -resistant strains of Staphylococcus aureus, MSSA and MRSA, respectively) and Gram negative (Escherichia coli and Pseudomonas aeruginosa) and a fungus Candida albicans. In addition, CGNPs attenuated the virulence of C. albicans by inhibiting hyphae formation. Based on observations of their antibiofilm effects and confocal microscopy findings, CGNPs caused biofilm damage by direct contact. Thus, cinnamaldehyde appears to be a promising reduction material for the eco-friendly, one-pot synthesis of CGNPs with excellent antibiofilm activity. PMID- 29031225 TI - Cube-shaped theranostic paclitaxel prodrug nanocrystals with surface functionalization of SPC and MPEG-DSPE for imaging and chemotherapy. AB - As one of nanomedicine delivery systems (NDSs), drug nanocrystals exhibited an excellent anticancer effect. Recently, differences of internalization mechanisms and subcellular localization of both drug nanocrystals and small molecular free drug have drawn much attention. In this paper, paclitaxel (PTX) as a model anticancer drug was directly labeled with 4-chloro-7-nitro-1, 2, 3-benzoxadiazole (NBD-Cl) (a drug-fluorophore conjugate Ma et al. (2016) and Wang et al. (2016) [1,2] (PTX-NBD)). PTX-NBD was synthesized by nucleophilic substitution reaction of PTX with NBD-Cl in high yield and characterized by fluorescence, XRD, ESI-MS, and FT-IR analysis. Subsequently, the cube-shaped PTX-NBD nanocrystals were prepared with an antisolvent method followed by surface functionalization of SPC and MPEG-DSPE. The obtained specific shaped PTX-NBD@PC-PEG NCs had a hydrodynamic particle size of ~50nm, excellent colloidal stability, and a high drug-loading content of ~64%. Moreover, in comparison with free PTX-NBD and the sphere-shaped PTX-NBD nanocrystals with surface functionalization of SPC and MPEG-DSPE (PTX NBD@PC-PEG NSs), PTX-NBD@PC-PEG NCs remarkably reduced burst release and improved cellular uptake efficiency and in vitro cancer cell killing ability. In a word, the work highlights the potential of theranostic prodrug nanocrystals based on the drug-fluorophore conjugates for cell imaging and chemotherapy. PMID- 29031226 TI - Ectopic vascularized bone formation by human mesenchymal stem cell microtissues in a biocomposite scaffold. AB - Three-dimensional multicellular human bone marrow mesenchymal stem cells (hBM MSCs) are showing a great promise in the repair of bone tissue due to its osteogenic differentiation potential, mimicking in vivo microenvironment and immunomodulatory property. In the present study, the potential of hBM-MSC microtissues (MTs) in combination with a biocomposite material to form vascularized bone-like tissue at an ectopic site in an immunocompromised mouse was evaluated. The scaffold was fabricated using gelatin, carboxymethyl cellulose, polyvinyl alcohol and nano-hydroxyapatite (GCnHP) by the freeze-drying method. The physico-chemico-biological characteristics were compared with control scaffold devoid of polyvinyl alcohol (GCnH). The scaffolds (GCnH and GCnHP) were highly porous and had interconnected pores. GCnHP showed higher mechanical strength, higher water adsorption and a lower rate of collagenase-mediated degradation in comparison to GCnH. The scaffolds also supported growth and proliferation of hBM-MSCs MTs and subsequent differentiation into osteoblast-like cells. The differentiated cells showed matrix mineralization and high expression of runX2, alkaline phosphatase, collagen type 1 and osteocalcin genes. A high expression of VEGF was also observed suggesting the potential of hBM-MSC MTs to induce angiogenesis. H&E and Masson's trichrome staining of the 4-weeks in vivo implanted scaffold revealed the presence of newly synthesized collagen and infiltration of host vasculature. IHC assessment showed expression of osteocalcin and osterix. These results demonstrate the efficacy of the combination of hBM-MSC MTs and biocomposite material as a promising approach for in vivo non-load bearing bone tissue repair for future clinical and various regenerative medicine applications. PMID- 29031227 TI - Development of a graphene oxide/chitosan nanocomposite for the removal of picric acid from aqueous solutions: Study of sorption parameters. AB - The functionalization of graphene oxide (GO) with chitosan (Chi) has been investigated to prepare a nanocomposite material (GO-Chi) for the removal of picric acid from aqueous solutions. Materials were characterized by FT-IR, TGA, DTG, FESEM, EDX, XRD and BET. Batch experiments such as solution pH, amount of adsorbents, contact time, concentration of the picric acid and temperature were achieved to study sorption process. Kinetic studies were well described by pseudo second-order kinetic model for both adsorbents. Isotherm studies showed that the Langmuir isotherm for GO and Freundlich and Halsey models for GO-Chi were found to best represent the measured sorption data. Negative DeltaG degrees values for GO-Chi and positive ones for GO indicated the nature of spontaneous and unspontaneous, respectively for adsorption process. In addition, picric acid molecules can be desorbed from GO-Chi up to 80% at pH=9 and that the consumed GO Chi could be reutilized up to 5th cycle of regeneration. PMID- 29031228 TI - Peptide-based electrochemical biosensor for juvenile idiopathic arthritis detection. AB - Juvenile idiopathic arthritis (JIA) is a wide group of diseases, characterized by synovial inflammation and joint tissue damage. Due to the delay in the implementation of biomarkers into clinical practice and the association with severe sequels, there is an imperative need for new JIA diagnosis strategies. Electrochemical biosensors based on screen-printed electrodes and peptides are promising alternatives for molecular diagnosis. In this work, a novel biosensor for detecting juvenile idiopathic arthritis (JIA) was developed based on the immobilization of the PRF+1 mimetic peptide, as recognition biological element, on the surface of screen-printed carbon electrode. This biosensor was able to discriminate the JIA positive and negative serum samples from different individuals using differential pulse voltammetry, presenting limits of detection and quantification in diluted samples of 1:784 (v/v) and 1:235 (v/v), respectively. Evaluation by electrochemical impedance spectroscopy showed RCT 3 times higher for JIA positive sample than for a pool of human serum samples from healthy individuals. Surface analysis of the biosensor by atomic force microscopy, after contact with JIA positive serum, presented great globular clusters irregularly distributed. The long-term stability of the biosensor was evaluated, remaining functional for over 40 days of storage (after storage at 8 degrees C). Therefore, a simple, miniaturized and selective biosensor was developed, being the first one based on mimetic peptide and screen-printed carbon electrode, aiming at the diagnosis of the juvenile idiopathic arthritis in real serum samples. PMID- 29031229 TI - [99mTc]duramycin for cell death imaging: Impact of kit formulation, purification and species difference. AB - INTRODUCTION: [99mTc]duramycin is a SPECT tracer for cell death imaging. We evaluated the impact of kit formulation, purification and species difference on the pharmacokinetic profile and cell death targeting properties of [99mTc]duramycin in order to define the optimal conditions for (pre-)clinical use. METHODS: Three kits were prepared (A: traditional formulation, B: containing 1/3 of ingredients, C: containing HYNIC-PEG12-duramycin). Following labeling, the kits were used without purification, or with SPE or HPLC purification. The pharmacokinetic profile was evaluated in mice and rats at 24 h post tracer injection (p.i.). Non-specific accumulation of [99mTc]duramcyin was studied by MUSPECT imaging in chemotherapy treated COLO205 tumor bearing mice pre-treated with cold duramycin (0.01-50 MUg). Cell death targeting ability of the kits displaying the best pharmacokinetic profile was compared in a treatment response study in COLO205 tumor bearing mice treated with conatumumab (anti-DR5 antibody). RESULTS: HPLC purification of kit prepared [99mTc]duramycin and reducing the amount of kit ingredients resulted in the best pharmacokinetic profile with low accumulation in liver, spleen and kidneys. The use of PEGylated [99mTc]duramycin required longer circulation times (> 4 h pi) to obtain good imaging characteristics. Pre-treatment with duramycin significantly decreased tracer uptake in chemotherapy treated tumors in a dose-dependent manner. A blocking dose of 50 MUg significantly increased non-specific accumulation in liver and spleen. Non-specific accumulation of [99mTc]duramycin was however demonstrated to be species dependent. HPLC purified kit A (5.21+/-1.71 %ID/cc) and non-purified kit B (1.68+/-0.46 %ID/cc) demonstrated a significant increase in tumor uptake compared to baseline following conatumumab treatment. CONCLUSIONS: To obtain [99mTc]duramycin with favorable imaging characteristics for cell death imaging in mice [99mTc]duramycin needs to be prepared with high specific activity by applying HPLC purification. The need for HPLC purification appears to be a species dependent phenomenon and might therefore not be required for clinical translation. PMID- 29031231 TI - Does adolescents' psychopathology change in times of change? PMID- 29031230 TI - Astatine-211 labeled anti-HER2 5F7 single domain antibody fragment conjugates: radiolabeling and preliminary evaluation. AB - INTRODUCTION: Derived from heavy chain only camelid antibodies, ~15-kDa single domain antibody fragments (sdAbs) are an attractive platform for developing molecularly specific imaging probes and targeted radiotherapeutics. The rapid tumor accumulation and normal tissue clearance of sdAbs might be ideal for use with 211At, a 7.2-h half-life alpha-emitter, if appropriate labeling chemistry can be devised to trap 211At in cancer cells after sdAb binding. This study evaluated two reagents, [211At]SAGMB and iso-[211At]SAGMB, for this purpose. METHODS: [211At]SAGMB and iso-[211At]SAGMB, and their radioiodinated analogues [131I]SGMIB and iso-[131I]SGMIB, were synthesized by halodestannylation and reacted with the anti-HER2 sdAb 5F7. Radiochemical purity, immunoreactivity and binding affinity were determined. Paired-label internalization assays on HER2 expressing BT474M1 breast carcinoma cells directly compared [131I]SGMIB 5F7/[211At]SAGMB-5F7 and iso-[131I]SGMIB-5F7/iso-[211At]SAGMB-5F7 tandems. The biodistribution of the two tandems was evaluated in SCID mice with subcutaneous BT474M1 xenografts. RESULTS: Radiochemical yields for Boc2-iso-[211At]SAGMB and Boc2-[211At]SAGMB synthesis, and efficiencies for coupling of iso-[211At]SAGMB and [211At]SAGMB to 5F7 were similar, with radiochemical purities of [211At]SAGMB 5F7 and iso-[211At]SAGMB-5F7 >98%. iso-[211At]SAGMB-5F7 and [211At]SAGMB-5F7 had immunoreactive fractions >80% and HER2 binding affinities of less than 5 nM. Internalization assays demonstrated high intracellular trapping of radioactivity, with little difference observed between corresponding 211At- and 131I-labeled 5F7 conjugates. Higher BT474M1 intracellular retention was observed from 1-6 h for the iso-conjugates (iso-[211At]SAGMB-5F7, 74.3 +/- 2.8%, vs. [211At]SAGMB-5F7, 63.7 +/- 0.4% at 2 h) with the opposite behavior observed at 24 h. Peak tumor uptake for iso-[211At]SAGMB-5F7 was 23.4 +/- 2.2% ID/g at 4 h, slightly lower than its radioiodinated counterpart, but significantly higher than observed with [211At]SAGMB-5F7. Except in kidneys and lungs, tumor-to-normal organ ratios for iso-[211At]SAGMB-5F7 were greater than 10:1 by 2 h, and significantly higher than those for [211At]SAGMB-5F7. CONCLUSION: These 211At-labeled sdAb conjugates, particularly iso-[211At]SAGMB-5F7, warrant further evaluation for targeted alpha particle radiotherapy of HER2-expressing cancers. PMID- 29031232 TI - Does prior domain-specific content knowledge influence students' recall of arguments surrounding interdisciplinary topics? AB - Awareness of various arguments can help interactants present opinions, stress points, and build counterarguments during discussions. At school, some topics are taught in a way that students learn to accumulate knowledge and gather arguments, and later employ them during debates. Prior knowledge may facilitate recalling information on well structured, fact-based topics, but does it facilitate recalling arguments during discussions on complex, interdisciplinary topics? We assessed the prior knowledge in domains related to a bioethical topic of 277 students from Germany (approximately 15 years old), their interest in the topic, and their general knowledge. The students read a text with arguments for and against prenatal diagnostics and tried to recall the arguments one week later and again six weeks later. Prior knowledge in various domains related to the topic individually and separately helped students recall the arguments. These relationships were independent of students' interest in the topic and their general knowledge. PMID- 29031233 TI - Forensic and clinical significance of serum amylase, lipase and gamma glutamyl transferase as predictors of outcome in head injured patients. AB - : Head trauma is one of the leading causes of death and disability worldwide. Combined head lesions consist of more than one form of lesions. Biochemical markers of brain injury are used in determining the extent of brain injury and predicting its outcomes. The aim of this study was to investigate the forensic and clinical significance of serum amylase, lipase and gamma glutamyl transferase (GGT) as predictors of the outcome in head injured patients. PATIENTS AND METHODS: Sixty head injured patients were enrolled and subjected to personal history taking, general and local physical examination. Glasgow coma scale (GCS), head computed tomography scan and pelvi-abdominal ultrasound were performed. Two blood samples (each 3 mL) were drawn at the time of admission and after 24 h for measuring serum amylase, lipase and GGT levels using special kits. RESULTS: Most cases of head trauma occurred accidentally during daytime, in the street as a result of falls and road traffic accidents (RTA). Significant increase of serum amylase, lipase and GGT levels on re-evaluation after 24 h from admission were demonstrated in combined head lesions. There was a high significant negative correlation between GCS and these enzymes both on admission and 24 h after admission. Serum levels of measured enzymes were significantly higher in non survivors as compared to survivors. CONCLUSION: Serum amylase, lipase and GGT are good predictors of the outcome in head injured patients. This could be useful for forensic experts to deduce that the poor outcome of the victims was primarily related to the effects of head trauma and its sequences. PMID- 29031234 TI - Proposal of a new radiological classification system for spinal meningiomas as a descriptive tool and surgical guide. AB - OBJECTIVES: 1) To provide neurosurgeons and radiologists with a new quantitative and anatomical method to describe spinal meningiomas (SM) consistently. 2) To provide a guide to the surgical approach needed and amount of bony resection required based on the proposed classification. 3) To report the distribution of our 58 cases of SM over different Stages and Subtypes in correlation to the surgical treatment needed for each case. 4) To briefly review the literature on the rare non-conventional surgical corridors to resect SM. PATIENTS AND METHODS: We reviewed the literature to report on previously published cohorts and classifications used to describe the location of the tumor inside the spinal canal. We reviewed the cases that were published prior showing non-conventional surgical approaches to resect spinal meningiomas. We proposed our classification system composed of Staging based on maximal cross-sectional surface area of tumor inside canal, Typing based on number of quadrants occupied by tumor and Subtyping based on location of the tumor bulk to spinal cord. Extradural and extra-spinal growth were also covered by our classification. We then applied it retrospectively on our 58 cases. RESULTS: 12 articles were published illustrating overlapping terms to describe spinal meningiomas. Another 7 articles were published reporting on 23 cases of anteriorly located spinal meningiomas treated with approaches other than laminectomies/laminoplasties. 4 Types, 9 Subtypes and 4 Stages were described in our Classification System. In our series of 58 patients, no midline anterior type was represented. Therefore, all our cases were treated by laminectomies or laminoplasties (with/without facetectomies) except a case with a paraspinal component where a costotransversectomy was needed. CONCLUSION: Spinal meningiomas can be radiologically described in a precise fashion. Selection of surgical corridor depends mainly on location of tumor bulk inside canal. PMID- 29031235 TI - Homeobox genes and tooth development: Understanding the biological pathways and applications in regenerative dental science. AB - OBJECTIVES: Homeobox genes are a group of conserved class of transcription factors that function as key regulators during the embryonic developmental processes. They act as master regulator for developmental genes, which involves coordinated actions of various auto and cross-regulatory mechanisms. In this review, we summarize the expression pattern of homeobox genes in relation to the tooth development and various signaling pathways or molecules contributing to the specific actions of these genes in the regulation of odontogenesis. MATERIALS AND METHODS: An electronic search was undertaken using combination of keywords e.g. Homeobox genes, tooth development, dental diseases, stem cells, induced pluripotent stem cells, gene control region was used as search terms in PubMed and Web of Science and relevant full text articles and abstract were retrieved that were written in English. A manual hand search in text books were also carried out. Articles related to homeobox genes in dentistry and tissue engineering and regenerative medicine of odontogenesis were selected. RESULTS: The possible perspective of stem cells technology in odontogenesis and subsequent analysis of gene correction pertaining to dental disorders through the possibility of induced pluripotent stem cells technology is also inferred. CONCLUSIONS: We demonstrate the promising role of tissue engineering and regenerative medicine on odontogenesis, which can generate a new ray of hope in the field of dental science. PMID- 29031236 TI - Inhibitory effect of probiotic lactobacilli supernatants on single and mixed non albicans Candida species biofilm. AB - OBJECTIVES: Oral candidiasis is one of the most common human fungal infections. While most cases of the Candida species isolated from the oral cavity are Candida albicans, a large number of candidiasis is attributed to non-albicans Candida species. In this study, we aim to evaluate the in vitro inhibition of supernatants of Lactobacillus gasseri and Lactobacillus rhamnosus on the single and mixed species biofilm of non-albicans Candida species, including Candida tropicalis, Candida krusei and Candida parapsilosis. DESIGN: Cell-free supernatants of Lactobacillus gasseri and Lactobacillus rhamnosus were prepared. Single and mixed non-albicans Candida species biofilm were formed in the 96-well microplate and on the surfaces of medical grade silicone. Biomass and cell viability were tested with crystal violet and cell counting kit-8. In order to examine the ability of the supernatant to disrupt pre-formed biofilm, supernatant was added to 24h-old biofilms. Biofilm architecture on silicone was investigated by scanning electron microscopy and confocal laser scanning microscopy was used to examine live/dead organisms within biofilm. RESULTS: Single and mixed species biofilms and cell viability of non-albicans Candida biofilms were inhibited by probiotic lactobacilli supernatants. Matrue biofilm formation was disrupted by lactobacilli supernatants added at 24h after biofilm initiation. Examination with confocal laser scanning microscopy and scanning electron microscopy confirmed that lactobacilli supernatants inhibited the mixed biofilms and damaged the cells. CONCLUSIONS: Our data elucidate the inhibitory activity of probiotic lactobacilli on non-albicans Candida biofilm, so as to support their utility as an adjunctive therapeutic mode against oral candida infections. PMID- 29031237 TI - Novel methodology for determining the effect of adsorbates on human enamel acid dissolution. AB - OBJECTIVE: The effect of various interventions on enamel demineralisation can be determined by chemically measuring mineral ions dissolved by the attacking acid. Results are usually expressed as mineral loss per surface area of enamel exposed. Acid resistant varnish or adhesive tape are typically used to delineate an area of enamel. However, enamel surface curvature, rugosity and porosity reduce the reliability of simple area measurements made at the macro scale. Our aim was to develop a simple method for investigating the effect of adsorbates on enamel demineralisation that does not rely on knowing the area of enamel exposed. As an exemplar we have used salivary proteins as a model adsorbate. DESIGN: Natural human tooth enamel surfaces were subjected to five sequential acid challenges and then incubated in adsorbate (whole clarified saliva) followed by a further 15 acid challenges. Demineralisation was determined by measuring the phosphate released into the acid during each exposure by a spectrophotometric assay. The initial five challenges established a mean baseline mineral loss for each tooth against which the effect of subsequently adsorbed proteins could be compared. RESULTS: Salivary proteins significantly reduced the acid demineralisation of human enamel by 43% (p<0.01). Loss of proteins during each challenge corresponded to a gradual reduction in the degree of protection afforded. CONCLUSIONS: The methodology provides a simple and flexible means to investigate the effect of any adsorbate on enamel acid dissolution. Knowledge of the area of exposed enamel is irrelevant as each tooth acts as its own negative control. PMID- 29031238 TI - The effect of supragingival biofilm re-development on the subgingival microbiota in chronic periodontitis. AB - OBJECTIVE: In this study, we hypothesized that in the absence of oral hygiene, re growth of the climax microbial communities of supra and subgingival biofilm happens in a faster and more intense fashion in individuals with chronic periodontitis (CP) compared to periodontally healthy controls (PH). DESIGN: Thirty patients (PH=15 and CP=15) received professional supragingival prophylaxis, and were asked to refrain from oral hygiene for 7days. Supra and subgingival biofilm samples and GCF were collected from randomly selected quadrants at baseline (before prophylaxis), immediately after prophylaxis, 2h, 6h, 24h, and 7days after prophylaxis. The composition of the biofilm was determined by the checkerboard method. RESULTS: All subjects developed gingivitis at the end of 7days without oral hygiene. GCF mean volumes were significantly higher in CP than PH patients at baseline, but they started decreasing 2h after prophylaxis, returning to baseline levels after 24h in both groups. Significant increases in mean counts for most of the species evaluated were observed in both groups and biofilms over time (p<0.05). Few hours after prophylaxis, a more marked reduction in microbial counts happened in the supragingival biofilm of the CP group, and re-development of biofilm started later than in the PH group. At 7days, no differences were seen between groups. Significant differences in kinetics of re-colonization between groups were observed only in the subgingival biofilm for T. denticola and F. nucleatum ss vicentii (increased in the CP), and N. mucosa (increased in the PH group; p<0.05). CONCLUSIONS: Biofilm re development was very similar between CP and PH individuals, although microbial re growth occurred few hours earlier in PH than PC. Only 3 species in the subgingival biofilm differed in re-colonization between groups. Thus, we reject the hypothesis that re-colonization of biofilm in CP patients is more intense and faster than in individuals with PH. PMID- 29031239 TI - Probiotic intervention influences the salivary levels of Matrix Metalloproteinase (MMP)-9 and Tissue Inhibitor of metalloproteinases (TIMP)-1 in healthy adults. AB - OBJECTIVE: To study the effect of orally administered Bifidobacterium animalis subsp. lactis BB-12 and Lactobacillus rhamnosus GG on the salivary levels of Matrix Metalloproteinases (MMP)-8, MMP-9 and of Tissue Inhibitor of Metalloproteinases (TIMP)-1 in healthy adults. Furthermore, the correlations between MMP-8, MMP-9 and TIMP-1 and plaque and gingival indices, salivary mutans streptococci and lactobacilli counts, and stimulated saliva secretion rate were analysed. DESIGN: The salivary samples originated from a randomized controlled trial where healthy student volunteers consumed probiotic or placebo lozenges twice a day for four weeks. The saliva samples were collected and clinical parameters measured at the baseline and at the end of the original study. For this study, the salivary levels of MMP-8, MMP-9 and TIMP-1 were analysed with immunofluorometric assay (IFMA) and enzyme-linked immunosorbent assay (ELISA). RESULTS: In the probiotic group (n=29), salivary MMP-9 levels increased (p<0.01) and TIMP-1 levels decreased (p<0.01) significantly during the intervention. Furthermore, MMP-9/TIMP-1 ratio differed significantly from the baseline level (p<0.01). These changes were not observed in the control group (n=31). In the whole data, salivary MMP-9 and gingival index correlated (r=0.260, p<0.05 at baseline and r=0.354, p<0.01 at the end of the study). Intergroup differences or correlations with other clinical parameters were not found. Probiotic consumption did not affect the saliva flow rate. CONCLUSIONS: Increased MMP-9 and decreased TIMP-1 levels in saliva may indicate that probiotics have immunomodulatory effects in the oral cavity. Furthermore, increased salivary MMP-9 levels may be an indication of the defensive potential of matrix metalloproteinases. PMID- 29031240 TI - Colonization of oropharynx and lower respiratory tract in critical patients: Risk of ventilator-associated pneumonia. AB - OBJECTIVE: To investigate the microbial diversity existing in oral cavity and respiratory tract samples (from mini-bronchoalveolar lavage (BAL), endotracheal aspirate, and orotracheal tube) of patients on mechanical ventilation by using the checkerboard DNA-DNA hybridisation. Also, the study aimed to evaluate whether the microbial profile in the oral cavity is found in respiratory tract samples, at different periods of mechanical ventilation time (12h, 48h, 96h) in attempt to identification of relationship between VAP (ventilator-associated pneumonia) and bacterial species studied. The last objective was to analyses correlation between blood cultures and VAP. DESIGN: The samples were collected from ten patients in intensive care unit with medical prescription of orotracheal intubation and mechanical ventilation. Clinical data were tabulated and blood cultures were performed according medical indication. For checkerboard samples collection, chosen sites were the dorsal side of the tongue and gingival sulcus at 12h, 48h, 96h, BAL, at 12h, endotracheal aspirate at 48 and 96h, and orotracheal tube at extubation time, when feasible. RESULTS: It was possible to identify the presence of bacterial species in mouth and in the BAL/endotracheal aspirate. The data demonstrated an increase in the quantity of bacterial associated with prolonged use of mechanical ventilation (48 and 96h). CONCLUSIONS: Bacterial species may migrate rapidly from mouth and upper airways during orotracheal intubation which contributes to the pathogenesis of VAP. There were associations between VAP and Enterococcus faecalis, Fusobacterium periodonticum, Gemella morbillorum, Neisseria mucosa, Propionibacterium acnes, Prevotella melaninogenica, Streptococcus oralis, Streptococcus sanguinis, Treponema denticola, Treponema socransckii, and Veillonella parvula. PMID- 29031241 TI - Citrus pectin attenuates endotoxin shock via suppression of Toll-like receptor signaling in Peyer's patch myeloid cells. AB - Pectin, a water-soluble dietary fiber, has been found to improve survival in endotoxin shock. However, the underlying mechanism by which pectin exerts its protective effect against endotoxin shock remains unknown. Apart from its prebiotic effects, it has been suggested that pectin directly affects immune cells to regulate inflammatory responses. In this study, we investigated the direct effect of pectin in murine model of endotoxin shock. Citrus pectin solution was administered to male C57BL/6 mice for 10 days. Thereafter, hypothermia was induced in the mice with intraperitoneal injection of lipopolysaccharide (LPS). The pectin-treated mice showed attenuation of both the decrease in rectal temperature and increase in serum IL-6 level as compared to vehicle control mice. Simultaneously, the pectin-treated mice showed reduced levels of inflammatory cytokine mRNA in Peyer's patches and mesenteric lymph nodes, but not in the spleen. Peyer's patch cells from the pectin-treated mice were sorted and their levels of IL-6 production on LPS stimulation were measured. The results of ex vivo analysis indicated that IL-6 secretion from CD11c+ cells was suppressed by oral administration of pectin. Furthermore, IL-6 secretion from Toll-like receptor (TLR)-activated RAW264.7 cells was suppressed by pretreatment with pectin in vitro. This suppression was observed even with degraded pectin pretreatment but not with polygalacturonic acid, as the principal constituent of the pectin backbone. Taken together, these results suggest that pectin intake suppresses TLR-induced inflammatory cytokine expression in Peyer's patch myeloid cells, presumably through inhibition of TLR signaling by the pectin side chains. PMID- 29031242 TI - Dietary creatine supplementation lowers hepatic triacylglycerol by increasing lipoprotein secretion in rats fed high-fat diet. AB - Recent studies have shown that dietary creatine supplementation can prevent lipid accumulation in the liver. Creatine is a small molecule that plays a large role in energy metabolism, but since the enzyme creatine kinase is not present in the liver, the classical role in energy metabolism does not hold in this tissue. Fat accumulation in the liver can lead to the development of nonalcoholic fatty liver disease (NAFLD), a progressive disease that is prevalent in humans. We have previously reported that creatine can directly influence lipid metabolism in cell culture to promote lipid secretion and oxidation. Our goal in the current study was to determine whether similar mechanisms that occur in cell culture were present in vivo. We also sought to determine whether dietary creatine supplementation could be effective in reversing steatosis. Sprague-Dawley rats were fed a high-fat diet or a high-fat diet supplemented with creatine for 5 weeks. We found that rats supplemented with creatine had significantly improved rates of lipoprotein secretion and alterations in mitochondrial function that were consistent with greater oxidative capacity. We also find that introducing creatine into a high-fat diet halted hepatic lipid accumulation in rats with fatty liver. Our results support our previous report that liver cells in culture with creatine secrete and oxidize more oleic acid, demonstrating that dietary creatine can effectively change hepatic lipid metabolism by increasing lipoprotein secretion and oxidation in vivo. Our data suggest that creatine might be an effective therapy for NAFLD. PMID- 29031243 TI - Preparation and Evaluation of Rifampicin and Co-trimoxazole-loaded Nanocarrier against Brucella melitensis Infection AB - Background: Brucellosis or Malta fever is a contagious infection common between human and domestic animals. Many antibiotics are used for brucellosis treatment, but they are not efficient and put heavy burden on society. Co-trimoxazole and rifampicin are two candidates for brucellosis treatment. In this study, we aimed to enhance the efficacy of these antibiotics using designed nanoparticles. Methods: Different concentrations of co-trimoxazole and rifampicin were used for loading onto a nanostructure of synthesized monomethoxy poly(ethylene glycol) oleate (mPEG-OA). The solubility, cytotoxicity, and efficacy of these nano-packed antibiotics on Brucella-infected murine phagocytic cells were examined, as compared with free antibiotics. Then the release nanoparticles was increased approximately 3.5 and 1.5fold, respectively, which is considerable in comparison with free insoluble ones. Results: Despite acceptable loading percentage, the application of co-trimoxazole-loaded nanoparticle on Brucella-infected J774A.1 murine macrophage-like cells did not lead to reduction in the number of bacteria; however, the efficacy of rifampicin on Brucella-infected murine phagocytic cells enhanced. Conclusion: In the current study, the efficacy of rifampicin on reducing the number of Brucella melitensis increased by the novel synthesized nanostructure. In contrast, since co-trimoxazole efficacy did not enhance by loading onto nanoparticles, the co-trimoxazole inefficiency is most likely not due to its low penetration or insolubility, and probably there are other factors that remain to be clarified in the future investigations. PMID- 29031244 TI - Development of New Recombinant DgK Antigen for Diagnosis of Dirofilaria immitis Infections in Dogs Using ELISA Technique and Its Comparison to Molecular Methods AB - Background: Dirofilaria immitis is a cosmopolitan zoonotic, vector-borne parasite of carnivorous animals causing dirofilariasis in human beings. Common commercial serodiagnostic tests for canine dirofilariasis usually lead to different results in their sensitivity and specificity. The present study reports development of recombinant DgK (rDgK) antigen of D. immitis for accurate immunodiagnosis of D. Immitis-infected dogs using indirect ELISA test. Methods: The rDgK coding sequence was successfully sequenced, codon optimized and cloned into pET-24a(+) expression vector and then expressed in Escherichia coli. The recombinant DgK was affinity purified using Ni2+-charged HiTrap chelating column, followed by testing in Western blotting and enzyme-linked immunosorbent assays (ELISA) with dog sera from a dirofilariasis endemic area. The performance of rDgK ELISA was evaluated using 60 sera collected from suspected dogs, while molecular technique was used as a reference test. Results: Sera from positive control D. immitis infection produced a strong IgG antibody response to rDgK both in ELISA and Western blotting tests. The sensitivity and specificity related to diagnostic potential of rDgK for ELISA were 92.5% and 87.5%, respectively. The results of rDgK ELISA showed a high agreement (0.764) with molecular identification. Conclusion: The findings revealed that the developed new rDgK antigen is sensitive and specific for immunodiagnosis of canine dirofilariasis using ELISA test. PMID- 29031245 TI - Decrease in Cavity Size and Oligodendrocyte Cell Death Using Neurosphere-Derived Oligodendrocyte-Like Cells in Spinal Cord Contusion Model AB - Background: Oligodendrocyte cell death is among the important features of spinal cord injury, which appears within 15 min and occurs intensely for 4 h after injury, in the rat spinal contusion model. Accordingly, the number of oligodendrocytes progressively reduced within 24 h after injury. Administration of oligodendrocyte-like cells (OLCs) into the lesion area is one of the approaches to counterbalance this condition. Methods: Bone marrow stromal cells were transdifferentiated into neurospheres and then into neural stem cells and later were differentiated into OLCs using triiodothyronine and transplanted into the spinal cord contusion rats. The post-injury functional recovery was explored and compared with the control group using Basso-Beattie-Bresnahan and narrow beam behavioral tests. At the end of 12th week, spinal cord segments T12-L1 were histomorphologically studied by immunohistochemistry. Results: Motor improvement was more obvious during 2nd to 4th weeks and got less prominent during 4th to 12th weeks. Histomorphometric findings indicated that cavity formation decreased in epicenter of transplantation area in experimental groups in comparison with the control groups. Conclusion: The findings obtained in the present study showed that OLC therapy is a potential approach in the treatment of spinal cord traumatic injuries. PMID- 29031246 TI - Structural evolution and atomic dynamics in Ni-Nb metallic glasses: A molecular dynamics study. AB - The composition and temperature dependence of static and dynamic structures in NixNb1-x (x = 50-70 at. %) were systematically studied using molecular dynamics with a new-released semi-empirical embedded atom method potential by Mendelev. The calculated pair correlation functions and the structure factor match well with the experimental data, demonstrating the reliability of the potential within relatively wide composition and temperature ranges. The local atomic structures were then characterized by bond angle distributions and Voronoi tessellation methods, demonstrating that the icosahedral ?0,0,12,0? is only a small fraction in the liquid state but increases significantly during cooling and becomes dominant at 300 K. The most abundant clusters are identified as ?0,0,12,0? and distorted icosahedron ?0,2,8,2?. The large fraction of these two clusters hints that the relatively good glass forming ability is near the eutectic point. Unlike Cu-Zr alloys, both the self-diffusion coefficient and shear viscosity are insensitive to compositions upon cooling in Ni-Nb alloys. The breakdown of the Stokes-Einstein relation happens at around 1.6Tg (Tg: glass transition temperature). In the amorphous state, the solid and liquid-like atoms can be distinguished based on the Debye-Waller factor ?u2?. The insensitivity of the dynamic properties of Ni-Nb alloys to compositions may result from the relatively simple solidification process in the phase diagram, in which only one eutectic point exists in the studied composition range. PMID- 29031247 TI - Extracting spectroscopic molecular parameters from short pulse photo-electron angular distributions. AB - Using a quantum wave packet simulation including the nuclear and electronic degrees of freedom, we investigate the femtosecond and picosecond energy- and angle-resolved photoelectron spectra of the E(Sigmag+1) electronic state of Li2. We find that the angular distributions of the emitted photoelectrons depend strongly on the pulse duration in the regime of ultrashort laser pulses. This effect is illustrated by the extraction of a time-dependent asymmetry parameter whose variation with pulse duration can be explained by an incoherent average over different ion rotational quantum numbers. We then derive for the variation of the asymmetry parameter a simple analytical formula, which can be used to extract the asymptotic CW asymmetry parameters of individual transitions from measurements performed with ultra-short pulses. PMID- 29031248 TI - Characterizing and optimizing a laser-desorption molecular beam source. AB - The design and characterization of a new laser-desorption molecular beam source, tailored for use in x-ray free-electron laser and ultrashort-pulse laser imaging experiments, is presented. It consists of a single mechanical unit containing all source components, including the molecular-beam valve, the sample, and the fiber coupled desorption laser, which is movable in five axes, as required for experiments at central facilities. Utilizing strong-field ionization, we characterize the produced molecular beam and evaluate the influence of desorption laser pulse energy, relative timing of valve opening and desorption laser, sample bar height, and which part of the molecular packet is probed on the sample properties. Strong-field ionization acts as a universal probe and allows detecting all species present in the molecular beam, and hence enables us to analyze the purity of the produced molecular beam, including molecular fragments. We present optimized experimental parameters for the production of the purest molecular beam, containing the highest yield of intact parent ions, which we find to be very sensitive to the placement of the desorbed-molecule plumes within the supersonic expansion. PMID- 29031249 TI - Communication: Programmable self-assembly of thin-shell mesostructures. AB - We study numerically the possibility of programmable self-assembly of various thin-shell architectures. They include clusters isomorphic to fullerenes C20 and C60, finite and infinite sheets, tube-shaped and toroidal mesostructures. Our approach is based on the recently introduced directionally functionalized nanoparticle platform, for which we employ a hybrid technique of Brownian dynamics with stochastic bond formation. By combining a number of strategies, we were able to achieve a near-perfect yield of the desired structures with a reduced "alphabet" of building blocks. Among those strategies are the following: the use of bending rigidity of the interparticle bond as a control parameter, programming the morphology with a seed architecture, use of chirality-preserving symmetries for reduction of the particle alphabet, and the hierarchic approach. PMID- 29031250 TI - Communication: Relaxation-limited electronic currents in extended reservoir simulations. AB - Open-system approaches are gaining traction in the simulation of charge transport in nanoscale and molecular electronic devices. In particular, "extended reservoir" simulations, where explicit reservoir degrees of freedom are present, allow for the computation of both real-time and steady-state properties but require relaxation of the extended reservoirs. The strength of this relaxation, gamma, influences the conductance, giving rise to a "turnover" behavior analogous to Kramers turnover in chemical reaction rates. We derive explicit, general expressions for the weak and strong relaxation limits. For weak relaxation, the conductance increases linearly with gamma and every electronic state of the total explicit system contributes to the electronic current according to its "reduced" weight in the two extended reservoir regions. Essentially, this represents two conductors in series-one at each interface with the implicit reservoirs that provide the relaxation. For strong relaxation, a "dual" expression-one with the same functional form-results, except now proportional to 1/gamma and dependent on the system of interest's electronic states, reflecting that the strong relaxation is localizing electrons in the extended reservoirs. Higher order behavior (e.g., gamma2 or 1/gamma2) can occur when there is a gap in the frequency spectrum. Moreover, inhomogeneity in the frequency spacing can give rise to a pseudo plateau regime. These findings yield a physically motivated approach to diagnosing numerical simulations and understanding the influence of relaxation, and we examine their occurrence in both simple models and a realistic, fluctuating graphene nanoribbon. PMID- 29031251 TI - Distance-including rigorous upper bounds and tight estimates for two-electron integrals over long- and short-range operators. AB - We introduce both rigorous and non-rigorous distance-dependent integral estimates for four-center two-electron integrals derived from a distance-including Schwarz type inequality. The estimates are even easier to implement than our so far most efficient distance-dependent estimates [S. A. Maurer et al., J. Chem. Phys. 136, 144107 (2012)] and, in addition, do not require well-separated charge distributions. They are also applicable to a wide range of two-electron operators such as those found in explicitly correlated theories and in short-range hybrid density functionals. For two such operators with exponential distance decay [e r12 and erfc(0.11?r12)/r12], the rigorous bound is shown to be much tighter than the standard Schwarz estimate with virtually no error penalty. The non-rigorous estimate gives results very close to an exact screening for these operators and for the long-range 1/r12 operator, with errors that are completely controllable through the integral screening threshold. In addition, we present an alternative form of our non-rigorous bound that is particularly well-suited for improving the PreLinK method [J. Kussmann and C. Ochsenfeld, J. Chem. Phys. 138, 134114 (2013)] in the context of short-range exchange calculations. PMID- 29031252 TI - Reorientation-induced spectral diffusion of non-isotropic orientation distributions. AB - When reorientation of a vibrational chromophore is faster than the relaxation of its local environment, the frequency fluctuation correlation function (FFCF) measured by two-dimensional infrared spectroscopy (2D-IR) spectroscopy is an interplay of scalar structural spectral diffusion and vectorial reorientation induced spectral diffusion (RISD). Theory has been established to calculate the RISD component of different polarization configurations with the assumption that the molecule orients randomly in a local electric field. We show here that in the [BMIM][SCN]/AOT/chlorobenzene system, where the local electric field is strong, this assumption is incapable of reproducing the experimental results. We modify the current theory by assuming a Boltzmann distribution of transition dipoles of the chromophores in a local electric field and use a Markov chain model to calculate the RISD component of 2D-IR with different polarization configurations. The result reproduces key features of the experiment and suggests a potential ion exchange in the [BMIM][SCN]/AOT/chlorobenzene system. PMID- 29031253 TI - Controlling the crystal polymorph by exploiting the time dependence of nucleation rates. AB - Most substances can crystallise into two or more different crystal lattices called polymorphs. Despite this, there are no systems in which we can quantitatively predict the probability of one competing polymorph forming instead of the other. We address this problem using large scale (hundreds of events) studies of the competing nucleation of the alpha and gamma polymorphs of glycine. In situ Raman spectroscopy is used to identify the polymorph of each crystal. We find that the nucleation kinetics of the two polymorphs is very different. Nucleation of the alpha polymorph starts off slowly but accelerates, while nucleation of the gamma polymorph starts off fast but then slows. We exploit this difference to increase the purity with which we obtain the gamma polymorph by a factor of ten. The statistics of the nucleation of crystals is analogous to that of human mortality, and using a result from medical statistics, we show that conventional nucleation data can say nothing about what, if any, are the correlations between competing nucleation processes. Thus we can show that with data of our form it is impossible to disentangle the competing nucleation processes. We also find that the growth rate and the shape of a crystal depend on it when nucleated. This is new evidence that nucleation and growth are linked. PMID- 29031254 TI - Premelting, solid-fluid equilibria, and thermodynamic properties in the high density region based on the Lennard-Jones potential. AB - The Lennard-Jones potential is used to study the high density fluid and face centered cubic solid state region, including solid-fluid equilibria. Numerous thermodynamic properties are considered, elucidating the behavior of matter in this poorly studied region. The present molecular simulation results are extensively compared to the latest and most accurate equation of state models for fluid and solid phases. It is shown that current models do not cover the thermodynamics of the system adequately near the solid-fluid phase transition. Furthermore, thermodynamic stability is analyzed, indicating that published solid fluid coexistence data may not be correct at high temperatures. Particular attention is paid to the premelting zone, a range of states close to the melting line, which is characterized by strong variations of several thermodynamic properties. Because the underlying microscopic mechanisms are not yet fully understood, it is hoped that these data may contribute to the development of a theoretical framework for describing premelting effects. PMID- 29031255 TI - Compressed representation of dispersion interactions and long-range electronic correlations. AB - The description of electron correlation in quantum chemistry often relies on multi-index quantities. Here, we examine a compressed representation of the long range part of electron correlation that is associated with dispersion interactions. For this purpose, we perform coupled-cluster singles and doubles (CCSD) computations on localized orbitals, and then extract the portion of CCSD amplitudes corresponding to dispersion energies. Using singular value decomposition, we uncover that a very compressed representation of the amplitudes is possible in terms of occupied-virtual geminal pairs located on each monomer. These geminals provide an accurate description of dispersion energies at medium and long distances. The corresponding virtual orbitals are examined by further singular value decompositions of the geminals. We connect each component of the virtual space to the multipole expansion of dispersion energies. Our results are robust with respect to basis set change and hold for systems as large as the benzene-methane dimer. This compressed representation of dispersion energies paves the way to practical and accurate approximations for dispersion, for example, in local correlation methods. PMID- 29031256 TI - Formic acid aggregation in 2D supersonic expansions probed by FTIR imaging. AB - C=O stretching vibrations of formic acid trimers are assigned on the basis of FTIR and Raman jet spectroscopy and further validated by an FTIR imaging study based on their aggregation behavior in supersonic expansions. The effect of shock waves on cluster formation and decomposition is probed by shifting them into the field of view of the focal plane array detector. A double slit nozzle is presented that merges two supersonic jets for a more localized study of such shock waves. PMID- 29031258 TI - Ultrafast and nonlinear spectroscopy of brilliant green-based nanoGUMBOS with enhanced near-infrared emission. AB - The synthesis, characterization, ultrafast dynamics, and nonlinear spectroscopy of 30 nm nanospheres of brilliant green-bis(pentafluoroethylsulfonyl)imide ([BG][BETI]) in water are reported. These thermally stable nanoparticles are derived from a group of uniform materials based on organic salts (nanoGUMBOS) that exhibit enhanced near-infrared emission compared with the molecular dye in water. The examination of ultrafast transient absorption spectroscopy results reveals that the overall excited-state relaxation lifetimes of [BG][BETI] nanoGUMBOS are longer than the brilliant green molecular dye in water due to steric hindrance of the torsional degrees of freedom of the phenyl rings around the central carbon. Furthermore, the second harmonic generation signal of [BG][BETI] nanoGUMBOS is enhanced by approximately 7 times and 23 times as compared with colloidal gold nanoparticles of the same size and the brilliant green molecular dye in water, respectively. A very clear third harmonic generation signal is observed from the [BG][BETI] nanoGUMBOS but not from either the molecular dye or the gold nanoparticles. Overall, these results show that [BG][BETI] nanoGUMBOS exhibit altered ultrafast and nonlinear spectroscopy that is beneficial for various applications including nonlinear imaging probes, biomedical imaging, and molecular sensing. PMID- 29031257 TI - The effects of halogen elements on the opening of an icosahedral B12 framework. AB - The fully halogenated or hydrogenated B12X122- (X = H, F, Cl, Br and I) clusters are confirmed to be icosahedral. On the other hand, the bare B12 cluster is shown to have a planar structure. A previous study showed that a transformation from an icosahedron to a plane happens when 5 to 7 iodine atoms are remained [P. Farras et al., Chem. - Eur. J. 18, 13208-13212 (2012)]. Later, the transition was confirmed to be seven iodine atoms based on an infrared spectroscopy study [M. R. Fagiania et al., Chem. Phys. Lett. 625, 48-52 (2015)]. In this study, we investigated the effects of different halogen atoms on the opening of the B12 icosahedral cage by means of density functional theory calculations. We found that the halogen elements do not have significant effects on the geometries of the clusters. The computed infrared (IR) spectra show similar representative peaks for all halogen doped clusters. Interestingly, we found a blue-shift in the IR spectra with the increase in the mass of the halogen atoms. Further, we compared the Gibbs free energies at different temperatures for different halogen atoms. The results show that the Gibbs free energy differences between open and close structures of B12X7- become larger when heavier halogen atoms are presented. This interesting finding was subsequently investigated by the energy decomposition analysis. PMID- 29031259 TI - An intrinsic representation of atomic structure: From clusters to periodic systems. AB - We have improved our distance matrix and eigen-subspace projection function (EPF) [X.-T. Li et al., J. Chem. Phys. 146, 154108 (2017)] to describe the atomic structure for periodic systems. Depicting the local structure of an atom, the EPF turns out to be invariant with respect to the choices of the unit cell and coordinate frame, leading to an intrinsic representation of the crystal with a set of EPFs of the nontrivial atoms. The difference of EPFs reveals the difference of atoms in local structure, while the accumulated difference between two sets of EPFs can be taken as the distance between configurations. Exemplified with the cases of carbon allotropes and boron sheets, our EPF approach shows exceptional rationality and efficiency to distinguish the atomic structures, which is crucial in structure recognition, comparison, and analysis. PMID- 29031260 TI - Aggregation of flexible polyelectrolytes: Phase diagram and dynamics. AB - Similarly charged polymers in solution, known as polyelectrolytes, are known to form aggregated structures in the presence of oppositely charged counterions. Understanding the dependence of the equilibrium phases and the dynamics of the process of aggregation on parameters such as backbone flexibility and charge density of such polymers is crucial for insights into various biological processes which involve biological polyelectrolytes such as protein, DNA, etc. Here, we use large-scale coarse-grained molecular dynamics simulations to obtain the phase diagram of the aggregated structures of flexible charged polymers and characterize the morphology of the aggregates as well as the aggregation dynamics, in the presence of trivalent counterions. Three different phases are observed depending on the charge density: no aggregation, a finite bundle phase where multiple small aggregates coexist with a large aggregate and a fully phase separated phase. We show that the flexibility of the polymer backbone causes strong entanglement between charged polymers leading to additional time scales in the aggregation process. Such slowing down of the aggregation dynamics results in the exponent, characterizing the power law decay of the number of aggregates with time, to be dependent on the charge density of the polymers. These results are contrary to those obtained for rigid polyelectrolytes, emphasizing the role of backbone flexibility. PMID- 29031261 TI - A study of accurate exchange-correlation functionals through adiabatic connection. AB - A systematic way of improving exchange-correlation energy functionals of density functional theory has been to make them satisfy more and more exact relations. Starting from the initial generalized gradient approximation (GGA) functionals, this has culminated into the recently proposed SCAN (strongly constrained and appropriately normed) functional that satisfies several known constraints and is appropriately normed. The ultimate test for the functionals developed is the accuracy of energy calculated by employing them. In this paper, we test these exchange-correlation functionals-the GGA hybrid functionals B3LYP and PBE0 and the meta-GGA functional SCAN-from a different perspective. We study how accurately these functionals reproduce the exchange-correlation energy when electron-electron interaction is scaled as alphaVee with alpha varying between 0 and 1. Our study reveals interesting comparison between these functionals and the associated difference Tc between the interacting and the non-interacting kinetic energy for the same density. PMID- 29031262 TI - Communication: General variational approach to nuclear-quadrupole coupling in rovibrational spectra of polyatomic molecules. AB - A general algorithm for computing the quadrupole-hyperfine effects in the rovibrational spectra of polyatomic molecules is presented for the case of ammonia (NH3). The method extends the general variational approach TROVE [J. Mol. Spectrosc. 245, 126-140 (2007)] by adding the extra term in the Hamiltonian that describes the nuclear quadrupole coupling, with no inherent limitation on the number of quadrupolar nuclei in a molecule. We applied the new approach to compute the nitrogen-nuclear-quadrupole hyperfine structure in the rovibrational spectrum of NH314. These results agree very well with recent experimental spectroscopic data for the pure rotational transitions in the ground vibrational and nu2 states and the rovibrational transitions in the nu1, nu3, 2nu4, and nu1 + nu3 bands. The computed hyperfine-resolved rovibrational spectrum of ammonia will be beneficial for the assignment of experimental rovibrational spectra, further detection of ammonia in interstellar space, and studies of the proton-to-electron mass variation. PMID- 29031263 TI - 2D IR spectroscopy of high-pressure phases of ice. AB - We present experimental and simulated 2D IR spectra of some high-pressure forms of isotope-pure D2O ice and compare the results to those of ice Ih published previously [F. Perakis and P. Hamm, Phys. Chem. Chem. Phys. 14, 6250 (2012); L. Shi et al., ibid. 18, 3772 (2016)]. Ice II, ice V, and ice XIII have been chosen for this study, since this selection covers many aspects of the polymorphism of ice. That is, ice II is a hydrogen-ordered phase of ice, in contrast to ice Ih, while ice V and ice XIII are a hydrogen-disordered/ordered couple that shares essentially the same oxygen structure and hydrogen-bonded network. For the transmission 2D IR spectroscopy, a novel method had to be developed for the preparation of ultrathin films (1-2 MUm) of high-pressure ices with good optical quality. We also simulated 2D IR spectra based on molecular dynamics simulations connected to a vibrational exciton picture. These simulations agree with the experimental results in a semi-quantitative manner for ice II, while the same approach failed for ice V and ice XIII. From the perspective of 2D IR spectroscopy, ice II appears to be more inhomogeneously broadened than ice Ih, despite its hydrogen-order, which we attribute to the fact that ice II is structurally more complex with four distinguishable hydrogen bonds that mix due to exciton coupling. Ice V and ice XIII, on the other hand, behave as expected with the hydrogen-disordered case (ice V) being more inhomogenously broadened. Furthermore, in all hydrogen-ordered forms (ice II and ice XIII), cross peaks could be identified in the anisotropic 2D IR spectrum, whose signs reveal the relative direction of the corresponding excitonic states. PMID- 29031264 TI - Computing vibrational energy levels of CH4 with a Smolyak collocation method. AB - In this paper, we demonstrate that it is possible to apply collocation to compute vibrational energy levels of a five-atom molecule using an exact kinetic energy operator (with cross terms and coordinate-dependent coefficients). This is made possible by using (1) a pruned basis of products of univariate functions; (2) a Smolyak grid made from nested sequences of grids for each coordinate; (3) a collocation method that obviates the need to solve a generalized eigenvalue problem; (4) an efficient sequential transformation between the (nondirect product) grid and the (nondirect product) basis representations; and (5) hierarchical univariate functions that make it possible to avoid storing large intermediate vectors. The accuracy of the method is confirmed by computing 500 vibrational energy levels of methane. PMID- 29031265 TI - Simplified expressions that incorporate finite pulse effects into coherent two dimensional optical spectra. AB - We derive general expressions that incorporate finite pulse envelope effects into a coherent two-dimensional optical spectroscopy (2DOS) technique. These expressions are simpler and less computationally intensive than the conventional triple integral calculations needed to simulate 2DOS spectra. The simplified expressions involving multiplications of arbitrary pulse spectra with 2D spectral response function are shown to be exactly equal to the conventional triple integral calculations of 2DOS spectra if the 2D spectral response functions do not vary with population time. With minor modifications, they are also accurate for 2D spectral response functions with quantum beats and exponential decay during population time. These conditions cover a broad range of experimental 2DOS spectra. For certain analytically defined pulse spectra, we also derived expressions of 2D spectra for arbitrary population time dependent 2DOS spectral response functions. Having simpler and more efficient methods to calculate experimentally relevant 2DOS spectra with finite pulse effect considered will be important in the simulation and understanding of the complex systems routinely being studied by using 2DOS. PMID- 29031266 TI - Effects of external electric field and anisotropic long-range reactivity on charge separation probability. AB - We consider the effects of external electric field and anisotropic long-range reactivity on the recombination dynamics of a geminate charge pair. A closed-form analytic expression for the ultimate separation probability of the pair is presented. In previous theories, analytic expressions for the separation probability were obtained only for the case where the recombination reaction can be assumed to occur at a contact separation. For this case, Noolandi and Hong obtained an exact solution, but their expression for the separation probability was too complicated to evaluate. Hence an approximate analytic expression proposed by Braun has been widely used. However, Braun's expression overestimates the separation probability when the electric field is large. In this work, we present an approximate analytic expression that is accurate enough for all parameter values. In addition, the expression is also applicable when the interaction between the geminate charge pair is described by screened Coulombic potential, and the recombination reaction has an anisotropic and long-range reactivity. We also provide the expression for the separation probability when the initial separation between the geminate charge pair is larger than the contact distance. PMID- 29031267 TI - Coherent laser-millimeter-wave interactions en route to coherent population transfer. AB - We demonstrate coherent two-photon population transfer to Rydberg states of barium atoms using a combination of a pulsed dye laser and a chirped-pulse millimeter-wave spectrometer. Numerical calculations, using a density matrix formalism, reproduce our experimental results and explain the factors responsible for the observed fractional population transferred, optimal experimental conditions, and possibilities for future improvements. The long coherence times associated with the millimeter-wave radiation aid in creating coherence between the ground state and Rydberg states, but higher-coherence laser sources are required to achieve stimulated Raman adiabatic passage and for applications to molecules. PMID- 29031268 TI - Multivalent cation induced attraction of anionic polymers by like-charged pores. AB - The efficiency of nanopore-based polymer sensing devices depends on the fast capture of anionic polyelectrolytes by negatively charged pores. This requires the cancellation of the electrostatic barrier associated with repulsive polymer pore interactions. We develop a correlation-corrected theory to show that the barrier experienced by the polymer can be efficiently overcome by the addition of multivalent cations into the electrolyte solution. Cation adsorption into the pore enhances the screening ability of the pore medium with respect to the bulk reservoir which translates into an attractive force on the polymer. Beyond a critical multivalent cation concentration, this correlation-induced attraction overcomes the electrostatic barrier and triggers the adsorption of the polymer by the like-charged pore. It is shown that like-charge polymer-pore attraction is suppressed by monovalent salt but enhanced by the membrane charge strength and the pore confinement. Our predictions may provide enhanced control over polymer motion in translocation experiments. PMID- 29031269 TI - Visualising crystal packing interactions in solid-state NMR: Concepts and applications. AB - In this article, we introduce and apply a methodology, based on density functional theory and the gauge-including projector augmented wave approach, to explore the effects of packing interactions on solid-state nuclear magnetic resonance (NMR) parameters. A visual map derived from a so-termed "magnetic shielding contribution field" can be made of the contributions to the magnetic shielding of a specific site-partitioning the chemical shift to specific interactions. The relation to the established approaches of examining the molecule to crystal change in the chemical shift and the nuclear independent chemical shift is established. The results are applied to a large sample of 71 molecular crystals and three further specific examples from supermolecular chemistry and pharmaceuticals. This approach extends the NMR crystallography toolkit and provides insight into the development of both cluster based approaches to the predictions of chemical shifts and for empirical predictions of chemical shifts in solids. PMID- 29031270 TI - Robust determination of the chemical potential in the pole expansion and selected inversion method for solving Kohn-Sham density functional theory. AB - Fermi operator expansion (FOE) methods are powerful alternatives to diagonalization type methods for solving Kohn-Sham density functional theory (KSDFT). One example is the pole expansion and selected inversion (PEXSI) method, which approximates the Fermi operator by rational matrix functions and reduces the computational complexity to at most quadratic scaling for solving KSDFT. Unlike diagonalization type methods, the chemical potential often cannot be directly read off from the result of a single step of evaluation of the Fermi operator. Hence multiple evaluations are needed to be sequentially performed to compute the chemical potential to ensure the correct number of electrons within a given tolerance. This hinders the performance of FOE methods in practice. In this paper, we develop an efficient and robust strategy to determine the chemical potential in the context of the PEXSI method. The main idea of the new method is not to find the exact chemical potential at each self-consistent-field (SCF) iteration but to dynamically and rigorously update the upper and lower bounds for the true chemical potential, so that the chemical potential reaches its convergence along the SCF iteration. Instead of evaluating the Fermi operator for multiple times sequentially, our method uses a two-level strategy that evaluates the Fermi operators in parallel. In the regime of full parallelization, the wall clock time of each SCF iteration is always close to the time for one single evaluation of the Fermi operator, even when the initial guess is far away from the converged solution. We demonstrate the effectiveness of the new method using examples with metallic and insulating characters, as well as results from ab initio molecular dynamics. PMID- 29031271 TI - Two-dimensional mixture of amphiphilic dimers and spheres: Self-assembly behaviour. AB - The emergence of supramolecular aggregates from simple microscopic interaction rules is a fascinating feature of complex fluids which, besides its fundamental interest, has potential applications in many areas, from biological self-assembly to smart material design. We here investigate by Monte Carlo simulation the equilibrium structure of a two-dimensional mixture of asymmetric dimers and spheres (disks). Dimers and disks are hard particles, with an additional short range attraction between a disk and the smaller monomer of a dimer. The model parameters and thermodynamic conditions probed are typical of colloidal fluid mixtures. In spite of the minimalistic character of the interaction, we observe upon varying the relative concentration and size of the two colloidal species-a rich inventory of mesoscale structures at low temperature, such as clusters, lamellae (i.e., polymer-like chains), and gel-like networks. For colloidal species of similar size and near equimolar concentrations, a dilute fluid of clusters gives way to floating lamellae upon cooling; at higher densities, the lamellae percolate through the simulation box, giving rise to an extended network. A crystal-vapour phase-separation may occur for a mixture of dimers and much larger disks. Finally, when the fluid is brought in contact with a planar wall, further structures are obtained at the interface, from layers to branched patterns, depending on the nature of wall-particle interactions. PMID- 29031272 TI - Defect interaction and local structural distortions in Mg-doped LaGaO3: A combined experimental and theoretical study. AB - A combined experimental and theoretical study of Mg-doped LaGaO3 electrolyte was carried out, with the aim to unveil the interaction between oxygen vacancy (Vo) and perovskite B site cations. LaGaO3 (LG) and LaGa0.875Mg0.125O2.938 (LGM0125) samples were comprehensively characterized by X-ray absorption spectroscopy (XAS) and X-ray diffraction, in order to investigate short- and long-range structures of both undoped and Mg-doped materials. XAS analysis evidenced a preferential Ga Vo interaction in LGM0125, confirmed by periodic hybrid density functional theory calculations, which were combined with a symmetry-independent classes (SICs) approach in order to (a) obtain a detailed picture of the different Mg and Vo configurations in the doped material and (b) characterize the structural features of the conducting sites. Among the 28 structures of LGM0125 considered in the SIC approach, the Ga-Vo-Ga and Ga-Vo-Mg axial configurations (oriented along the b crystallographic axis) were found to be the most stable. The relative stability of all vacancy configurations considered could be related to geometric distortions of the B-sites, possibly significantly affecting the oxygen-ion diffusion process in such electrolytes. PMID- 29031273 TI - Post-transition state dynamics and product energy partitioning following thermal excitation of the F?HCH2CN transition state: Disagreement with experiment. AB - Born-Oppenheimer direct dynamics simulations were performed to study atomistic details of the F + CH3CN -> HF + CH2CN H-atom abstraction reaction. The simulation trajectories were calculated with a combined M06-2X/MP2 algorithm utilizing the 6-311++G** basis set. The experiments were performed at 300 K, and assuming the accuracy of transition state theory (TST), the trajectories were initiated at the F?HCH2CN abstraction TS with a 300 K Boltzmann distribution of energy and directed towards products. Recrossing of the TS was negligible, confirming the accuracy of TST. HF formation was rapid, occurring within 0.014 ps of the trajectory initiation. The intrinsic reaction coordinate (IRC) for reaction involves rotation of HF about CH2CN and then trapping in the CH2CN?HF post-reaction potential energy well of ~10 kcal/mol with respect to the HF + CH2CN products. In contrast to this IRC, five different trajectory types were observed: the majority proceeded by direct H-atom transfer and only 11% approximately following the IRC. The HF vibrational and rotational quantum numbers, n and J, were calculated when HF was initially formed and they increase as potential energy is released in forming the HF + CH2CN products. The population of the HF product vibrational states is only in qualitative agreement with experiment, with the simulations showing depressed and enhanced populations of the n = 1 and 2 states as compared to experiment. Simulations with an anharmonic zero-point energy constraint gave product distributions for relative translation, HF rotation, HF vibration, CH2CN rotation, and CH2CN vibration as 5%, 11%, 60%, 7%, and 16%, respectively. In contrast, the experimental energy partitioning percentages to HF rotation and vibration are 6% and 41%. Comparisons are made between the current simulation and those for other F + H-atom abstraction reactions. The simulation product energy partitioning and HF vibrational population for F + CH3CN -> HF + CH2CN resemble those for other reactions. A detailed discussion is given of possible origins of the difference between the simulation and experimental energy partitioning dynamics for F + CH3CN -> HF + CH2CN. The F + CH3CN reaction also forms the CH3C(F)N intermediate, in which the F-atom adds to the C=N bond. However, this intermediate and F?CH3CN and CH3CN?F van der Waals complexes are not expected to affect the F + CH3CN -> HF + CH2CN product energy partitioning. PMID- 29031274 TI - A transition-state based rotational sudden (TSRS) approximation for polyatomic reactive scattering. AB - A transition-state based rotational sudden (TSRS) approximation for the calculation of differential and integral cross sections is introduced. The TSRS approach only requires data obtained from reactive scattering calculations for the vanishing total angular momentum (J = 0). It is derived within the quantum transition state framework and can be viewed as a generalization and improvement of existing J-shifting schemes. The TSRS approach assumes a sudden decay of the activated complex and separability of the overall rotation and motion in the internal coordinates. Depending on the choice of the body fixed frame, different variants of the TSRS can be derived. The TSRS approach is applied to the calculation of integral cross sections of various isotopomers of the H2O+H->H2+OH reaction, the reverse reaction H2+OH->H2O+H, and the H2O+Cl->HCl+OH reaction. Comparison with accurate close-coupling calculations and established approximate schemes shows that a scattering frame based TSRS approximation yields more accurate results than the centrifugal sudden approximation and standard J shifting for the H2O+H->H2+OH reaction and all isotopomers studied. For the H2+OH >H2O+H and the H2O+Cl->HCl+OH reactions, the TSRS results as well as the results of the other approximate schemes agree well with the exact ones. The findings are rationalized by an analysis of the different contributions to the moment of inertia matrix at the transition state geometry. PMID- 29031275 TI - Effective Floquet Hamiltonian theory of multiple-quantum NMR in anisotropic solids involving quadrupolar spins: Challenges and Perspectives. AB - The response of a quadrupolar nucleus (nuclear spin with I >12) to an oscillating radio-frequency pulse/field is delicately dependent on the ratio of the quadrupolar coupling constant to the amplitude of the pulse in addition to its duration and oscillating frequency. Consequently, analytic description of the excitation process in the density operator formalism has remained less transparent within existing theoretical frameworks. As an alternative, the utility of the "concept of effective Floquet Hamiltonians" is explored in the present study to explicate the nuances of the excitation process in multilevel systems. Employing spin I =32 as a case study, a unified theoretical framework for describing the excitation of multiple-quantum transitions in static isotropic and anisotropic solids is proposed within the framework of perturbation theory. The challenges resulting from the anisotropic nature of the quadrupolar interactions are addressed within the effective Hamiltonian framework. The possible role of the various interaction frames on the convergence of the perturbation corrections is discussed along with a proposal for a "hybrid method" for describing the excitation process in anisotropic solids. Employing suitable model systems, the validity of the proposed hybrid method is substantiated through a rigorous comparison between simulations emerging from exact numerical and analytic methods. PMID- 29031276 TI - Isotopic effects in vibrational relaxation dynamics of H on a Si(100) surface. AB - In a recent paper [U. Lorenz and P. Saalfrank, Chem. Phys. 482, 69 (2017)], we proposed a robust scheme to set up a system-bath model Hamiltonian, describing the coupling of adsorbate vibrations (system) to surface phonons (bath), from first principles. The method is based on an embedded cluster approach, using orthogonal coordinates for system and bath modes, and an anharmonic phononic expansion of the system-bath interaction up to second order. In this contribution, we use this model Hamiltonian to calculate vibrational relaxation rates of H-Si and D-Si bending modes, coupled to a fully H(D)-covered Si(100) (2*1) surface, at zero temperature. The D-Si bending mode has an anharmonic frequency lying inside the bath frequency spectrum, whereas the H-Si bending mode frequency is outside the bath Debye band. Therefore, in the present calculations, we only take into account one-phonon system-bath couplings for the D-Si system and both one- and two-phonon interaction terms in the case of H-Si. The computation of vibrational lifetimes is performed with two different approaches, namely, Fermi's golden rule, and a generalized Bixon-Jortner model built in a restricted vibrational space of the adsorbate-surface zeroth-order Hamiltonian. For D-Si, the Bixon-Jortner Hamiltonian can be solved by exact diagonalization, serving as a benchmark, whereas for H-Si, an iterative scheme based on the recursive residue generation method is applied, with excellent convergence properties. We found that the lifetimes obtained with perturbation theory, albeit having almost the same order of magnitude-a few hundred fs for D-Si and a couple of ps for H-Si-, are strongly dependent on the discretized numerical representation of the bath spectral density. On the other hand, the Bixon-Jortner model is free of such numerical deficiencies, therefore providing better estimates of vibrational relaxation rates, at a very low computational cost. The results obtained with this model clearly show a net exponential decay of the time dependent survival probability for the H-Si initial vibrational state, allowing an easy extraction of the bending mode "lifetime." This is in contrast with the D Si system, whose survival probability exhibits a non-monotonic decay, making it difficult to define such a lifetime. This different behavior of the vibrational decay is rationalized in terms of the power spectrum of the adsorbate-surface system. In the case of D-Si, it consists of several, non-uniformly distributed peaks around the bending mode frequency, whereas the H-Si spectrum exhibits a single Lorentzian lineshape, whose width corresponds to the calculated lifetime. The present work gives some insight into mechanisms of vibration-phonon coupling at surfaces. It also serves as a benchmark for multidimensional system-bath quantum dynamics, for comparison with approximate schemes such as reduced, open system density matrix theory (where the bath is traced out and a Liouville-von Neumann equation is solved) or approximate wavefunction methods to solve the combined system-bath Schrodinger equation. PMID- 29031277 TI - Resonant-convergent second-order nonlinear response functions at the levels of Hartree-Fock and Kohn-Sham density functional theory. AB - The second-order nonlinear (or cubic) response function is derived from the Ehrenfest theorem with inclusion made of the finite lifetimes of the excited states, representing the extension of the derivation of the quadratic response function in the same framework [P. Norman et al., J. Chem. Phys. 123, 194103 (2005)]. The resulting damped response functions are physically sound and converging also in near-resonance and resonance regions of the spectrum. Being an accurate approximation for small complex frequencies (defined as the sum of an optical frequency and an imaginary damping parameter), the polynomial expansion of the complex cubic response function in terms of the said frequencies is presented and used to validate the program implementation. In terms of approximate state theory, the computationally tractable expressions of the damped cubic response function are derived and implemented at the levels of Hartree-Fock and Kohn-Sham density functional theory. Numerical examples are provided in terms of studies of the intensity-dependent refractive index of para-nitroaniline and the two-photon absorption cross section of neon. For the latter property, a numerical comparison is made against calculations of the square of two-photon matrix elements that are identified from a residue analysis of the resonance divergent quadratic response function. PMID- 29031278 TI - Activity coefficients from molecular simulations using the OPAS method. AB - A method for determining activity coefficients by molecular dynamics simulations is presented. It is an extension of the OPAS (osmotic pressure for the activity of the solvent) method in previous work for studying the solvent activity in electrolyte solutions. That method is extended here to study activities of all components in mixtures of molecular species. As an example, activity coefficients in liquid mixtures of water and methanol are calculated for 298.15 K and 323.15 K at 1 bar using molecular models from the literature. These dense and strongly interacting mixtures pose a significant challenge to existing methods for determining activity coefficients by molecular simulation. It is shown that the new method yields accurate results for the activity coefficients which are in agreement with results obtained with a thermodynamic integration technique. As the partial molar volumes are needed in the proposed method, the molar excess volume of the system water + methanol is also investigated. PMID- 29031279 TI - Rotationally inelastic collisions of excited NaK and NaCs molecules with noble gas and alkali atom perturbers. AB - We report measurements of rate coefficients at T ~ 600 K for rotationally inelastic collisions of NaK molecules in the 2(A)1Sigma+ electronic state with helium, argon, and potassium atom perturbers. Several initial rotational levels J between 14 and 44 were investigated. Collisions involving molecules in low-lying vibrational levels (v = 0, 1, and 2) of the 2(A)1Sigma+ state were studied using Fourier-transform spectroscopy. Collisions involving molecules in a higher vibrational level, v = 16, were studied using pump/probe, optical-optical double resonance spectroscopy. In addition, polarization spectroscopy measurements were carried out to study the transfer of orientation in these collisions. Many, but not all, of the measurements were carried out in the "single-collision regime" where more than one collision is unlikely to occur within the lifetime of the excited molecule. The analysis of the experimental data, which is described in detail, includes an estimate of effects of multiple collisions on the reported rate coefficients. The most significant result of these experiments is the observation of a strong propensity for DeltaJ = even transitions in collisions involving either helium or argon atoms; the propensity is much stronger for helium than for argon. For the initial rotational levels studied experimentally, almost all initial orientation is preserved in collisions of NaK 2(A)1Sigma+ molecules with helium. Roughly between 1/3 and 2/3 of the orientation is preserved in collisions with argon, and almost all orientation is destroyed in collisions with potassium atoms. Complementary measurements on rotationally inelastic collisions of NaCs 2(A)1Sigma+ with argon do not show a DeltaJ = even propensity. The experimental results are compared with new theoretical calculations of collisions of NaK 2(A)1Sigma+ with helium and argon. The calculations are in good agreement with the absolute magnitudes of the experimentally determined rate coefficients and accurately reproduce the very strong propensity for DeltaJ = even transitions in helium collisions and the less strong propensity for DeltaJ = even transitions in argon collisions. The calculations also show that collisions with helium are less likely to destroy orientation than collisions with argon, in agreement with the experimental results. PMID- 29031280 TI - Factors influencing suicide in older rural males: a review of Australian studies. AB - INTRODUCTION: Suicide remains an important public health issue in Australia, responsible for around 2500 deaths each year. Although suicide only accounts for around 1.7% of total mortality in Australia per year, 75% of suicide deaths are in males. This article reviews the factors contributing to suicide in older rural males in Australia and then categorises the papers into themes for ease of explanation. Living with experiences of drought, dramatic weather change, lower employment opportunities, out-migration, changing family dynamics, ageism in the community, economic change and competitive labour markets, all add to the diverse experience for an older person who is ageing in a rural setting. METHODS: A literature search was conducted in March 2015, using the terms 'elderly' and 'older males' and then combined with 'rural', 'suicide' and 'Australia', to investigate the amount of research that has been conducted on the factors relating to suicide in older rural Australian males. RESULTS: Reviewed articles consisted of research using either quantitative or qualitative approaches, which investigated suicide in older Australians published between 1950 and 2014. With strict adherence to the selection criteria, articles (21 in total) were removed because they were a literature review; a narrative review; they focused predominantly on youth or suicide risk, suicidal ideation or suicide attempts; or they discussed reasons for living. This article discusses the researcher's recommendations for further research into employment transitions for older Australian males, and the need to review policy change for further intervention in the future. CONCLUSIONS: This article highlights factors that may cause older rural Australians to be placed at a higher risk of suicide than their urban dwelling counterparts. With the impact of the changing economy, unpredictable climatic conditions and dynamic changes in rural Australian families, there is a need to highlight research that has been conducted in this area. Future research should focus on identification of misclassification of suicide deaths, investigation of the possible effect that retirement pathways may have on older Australian males, suicide prevention strategies, mental wellbeing and the risk of suicidal behaviour. This will ascertain any compounding or protective factors that could influence this current trend. PMID- 29031281 TI - Double disparities in the health care for people with schizophrenia of an ethnic national minority. AB - BACKGROUND: Studies have shown health care disparities among persons of minority status, including in countries with universal health care. Yet, a dearth of studies have addressed disparities resulting from the combined effect of two minority status groups: severe mental illness and ethnic-national sector filiation. This study aimed to compare the differential health care of Jewish- and Arab-Israelis with schizophrenia in a country with a universal health insurance. METHOD: This study builds on a large case-control epidemiological sample (N = 50,499) of Jewish- (92.9%) and Arab-Israelis (7.1%) service users with (n = 16,833) and without schizophrenia (n = 33,666). Health services records were collected in the years 2000-2009. Diabetes and cardiovascular disease (CVD) served as sentinel diseases. We compared annual number of LDL tests and visits to specialists in the entire sample, Hemoglobin-A1C test among people diagnosed with diabetes, and cardiac surgical interventions for those diagnosed with CVD. RESULTS: Service users with schizophrenia were less likely to meet identical indexes of care as their study counterparts: 95% of cholesterol tests (p < .001), and 92% visits to specialists (p < .001). These differences were greater among Arab- compared to Jewish-Israelis. Annual frequency of Hemoglobin-A1C test among people diagnosed with diabetes was lower (94%) in people with schizophrenia (p < 0.01), but no ethnic-national differences were identified. Among service users with CVD less surgical interventions were done in people with schizophrenia (70%) compared to their counterparts, with no ethnic-national disparities. CONCLUSIONS: In Israel, service users with schizophrenia fail to receive equitable levels of medical and cardiac surgical care for CVD and regular laboratory tests for diabetes. Although disparities in some health indicators were enhanced among Arab Israelis, schizophrenia was a greater source of disparities than ethnic-national filiation. PMID- 29031282 TI - Dengue Virus Serotypes 1 and 2 Responsible for Major Dengue Outbreaks in Nepal: Clinical, Laboratory, and Epidemiological Features. AB - Dengue virus (DENV) is expanding toward previously nonendemic areas. DENV has recently been introduced in Nepal with limited information. We report the clinical features and serotype distribution of DENV in Nepal during the 2010 outbreaks. A total of 1,215 clinical dengue cases at two major hospitals of central and western Nepal were investigated. Demographic, clinical, and laboratory parameters were recorded. Serum specimens were tested for DENV by IgM/IgG enzyme-linked immunosorbent assays (ELISAs) and reverse transcription polymerase chain reaction (RT-PCR). We confirmed DENV infection in 403 (33%) patients from 12 districts with an estimated case fatality rate of 1.5%. DENV infection was more common in adults (87%) and urban settings (74%). We detected all four serotypes but DENV-1 and -2 were mainly responsible for major outbreaks (92%). Overall, 60% of all DENV infections were secondary and 17% were severe dengue; both being more frequent among the DENV-2 infections. Rash, bleeding, abdominal pain, hepatomegaly, elevated liver enzymes, and thrombocytopenia were significantly more common in severe dengue compared with nonsevere infections. We also confirmed the expansion of dengue to hill urban areas (DENV-1 and -2), including the capital Kathmandu (altitude, 1,300 m) though > 90% cases were from southern plains. Differential clinical and laboratory features probably help in clinical decisions. Multiple serotypes circulation and elevated secondary infections pose potential risk of severe outbreaks and deaths in the future. Therefore, a country with recent dengue introduction, like Nepal, urgently requires a systematic surveillance and appropriate control measures in place to respond to any disastrous outbreaks. PMID- 29031284 TI - Papulonecrotic Tuberculid. PMID- 29031283 TI - Multipathway Quantitative Assessment of Exposure to Fecal Contamination for Young Children in Low-Income Urban Environments in Accra, Ghana: The SaniPath Analytical Approach. AB - Lack of adequate sanitation results in fecal contamination of the environment and poses a risk of disease transmission via multiple exposure pathways. To better understand how eight different sources contribute to overall exposure to fecal contamination, we quantified exposure through multiple pathways for children under 5 years old in four high-density, low-income, urban neighborhoods in Accra, Ghana. We collected more than 500 hours of structured observation of behaviors of 156 children, 800 household surveys, and 1,855 environmental samples. Data were analyzed using Bayesian models, estimating the environmental and behavioral factors associated with exposure to fecal contamination. These estimates were applied in exposure models simulating sequences of behaviors and transfers of fecal indicators. This approach allows us to identify the contribution of any sources of fecal contamination in the environment to child exposure and use dynamic fecal microbe transfer networks to track fecal indicators from the environment to oral ingestion. The contributions of different sources to exposure were categorized into four types (high/low by dose and frequency), as a basis for ranking pathways by the potential to reduce exposure. Although we observed variation in estimated exposure (108-1016 CFU/day for Escherichia coli) between different age groups and neighborhoods, the greatest contribution was consistently from food (contributing > 99.9% to total exposure). Hands played a pivotal role in fecal microbe transfer, linking environmental sources to oral ingestion. The fecal microbe transfer network constructed here provides a systematic approach to study the complex interaction between contaminated environment and human behavior on exposure to fecal contamination. PMID- 29031285 TI - Evaluation of Community-Directed Operation of Black Fly Traps for Entomological Surveillance of Onchocerca volvulus Transmission in the Madi-Mid North Focus of Onchocerciasis in Northern Uganda. AB - Entomological measures of transmission are important metrics specified by the World Health Organization to document the suppression and interruption of transmission of Onchocerca volvulus, the causative agent of onchocerciasis. These metrics require testing of large numbers of vector black flies. Black fly collection has relied on human landing collections, which are inefficient and potentially hazardous. As the focus of the international community has shifted from onchocerciasis control to elimination, replacement of human landing collections has become a priority. The Esperanza window trap (EWT) has shown promise as an alternative method for collection of Simulium damnosum s.l., the primary vector of O. volvulus in Africa. Here, we report the results of a community-based trial of the EWT in northern Uganda. Traps operated by residents were compared with human landing collections in two communities over 5 months. Three traps, when operated by a single village resident, collected over four times as many S. damnosum as did the two-men collection team. No significant differences were noted among the bait formulations. The results suggest that EWTs may be effectively operated by community residents and that the trap represents a viable alternative to human landing collections for entomological surveillance of O. volvulus transmission. PMID- 29031286 TI - Surveillance of Vector-Borne Infections (Chikungunya, Dengue, and Malaria) in Bo, Sierra Leone, 2012-2013. AB - Malaria remains a significant cause of morbidity and mortality in West Africa, but the contribution of other vector-borne infections (VBIs) to the burden of disease has been understudied. We used rapid diagnostic tests (RDTs) for three VBIs to test blood samples from 1,795 febrile residents of Bo City, Sierra Leone, over a 1-year period in 2012-2013. In total, 24% of the tests were positive for malaria, fewer than 5% were positive for markers of dengue virus infection, and 39% were positive for IgM directed against chikungunya virus (CHIKV) or a related alphavirus. In total, more than half (55%) of these febrile individuals tested positive for at least one of the three VBIs, which highlights the very high burden of vector-borne diseases in this population. The prevalence of positives on the Chikungunya IgM and dengue tests did not vary significantly with age (P > 0.36), but higher rates of malaria were observed in children < 15 years of age (P < 0.001). Positive results on the Chikungunya IgM RDTs were moderately correlated with rainfall (r2 = 0.599). Based on the high prevalence of positive results on the Chikungunya IgM RDTs from individuals Bo and its environs, there is a need to examine whether an ecological shift toward a greater burden from CHIKV or related alphaviruses is occurring in other parts of Sierra Leone or the West African region. PMID- 29031287 TI - Leprosy Associated with Atypical Cutaneous Leishmaniasis in Nicaragua and Honduras. AB - In Central America, few cases of leprosy have been reported, but the disease may be unrecognized. Diagnosis is based on clinical criteria and histology. Preliminary field work in Nicaragua and Honduras found patients, including many children, with skin lesions clinically suggestive of atypical cutaneous leishmaniasis or indeterminate leprosy. Histology could not distinguish these diseases although acid-fast organisms were visible in a few biopsies. Lesions healed after standard antimicrobial therapy for leprosy. In the present study, patients, family members, and other community members were skin-tested and provided nasal swabs and blood samples. Biopsies were taken from a subgroup of patients with clinical signs of infection. Two laboratories analyzed samples, using local in-house techniques. Mycobacterium leprae, Leishmania spp. and Leishmania infantum were detected using polymerase chain reactions. Mycobacterium leprae DNA was detected in blood samples and nasal swabs, including some cases where leprosy was not clinically suspected. Leishmania spp. were also detected in blood and nasal swabs. Most biopsies contained Leishmania DNA and coinfection of Leishmania spp. with M. leprae occurred in 33% of cases. Mycobacterium leprae DNA was also detected and sequenced from Nicaraguan and Honduran environmental samples. In conclusion, leprosy and leishmaniasis are present in both regions, and leprosy appears to be widespread. The nature of any relationship between these two pathogens and the epidemiology of these infections need to be elucidated. PMID- 29031288 TI - Case Report: Old World Mucosal Leishmaniasis: Report of Five Imported Cases to the Hospital for Tropical Diseases, London, United Kingdom. AB - Old World species of Leishmania typically cause visceral and cutaneous leishmaniasis. Mucosal involvement is typically seen with infection by Leishmania species found in South America, usually after the healing of cutaneous leishmaniasis. We present five imported cases of mucosal leishmaniasis caused by Old World Mediterranean Leishmania infantum exclusively affecting the nasal mucosa or vocal cord. In only one case was there a recollection of a preceding cutaneous lesion compatible with cutaneous Leishmaniasis. Of significance was that four out of five cases were receiving local corticosteroids for chronic lung disorders and four were systemically immunosuppressed. This report highlights the importance of considering mucosal leishmaniasis in the differential diagnosis in those presenting with upper respiratory tract mucosal lesions with a relevant travel history to the Mediterranean and in whom malignancy has been excluded. PMID- 29031289 TI - Histological Examination in Obtaining a Diagnosis in Patients with Lymphadenopathy in Lima, Peru. AB - The differential diagnosis for lymphadenopathy is wide and clinical presentations overlap, making obtaining an accurate diagnosis challenging. We sought to characterize the clinical and radiological characteristics, histological findings, and diagnoses for a cohort of patients with lymphadenopathy of unknown etiology. 121 Peruvian adults with lymphadenopathy underwent lymph node biopsy for microbiological and histopathological evaluation. Mean patient age was 41 years (Interquartile Range 26-52), 56% were males, and 39% were HIV positive. Patients reported fever (31%), weight loss (23%), and headache (22%); HIV infection was associated with fever (P < 0.05) and gastrointestinal symptoms (P < 0.05). Abnormalities were reported in 40% of chest X-rays (N = 101). Physicians suspected TB in 92 patients (76%), lymphoma in 19 patients (16%), and other malignancy in seven patients (5.8%). Histological diagnoses (N = 117) included tuberculosis (34%), hyperplasia (27%), lymphoma (13%), and nonlymphoma malignancy (14%). Hyperplasia was more common (P < 0.001) and lymphoma less common (P = 0.005) among HIV-positive than HIV-negative patients. There was a trend toward reduced frequency of caseous necrosis in samples from HIV-positive than HIV negative TB patients (67 versus 93%, P = 0.055). The spectrum of diagnoses was broad, and clinical and radiological features correlated poorly with diagnosis. On the basis of clinical features, physicians over-diagnosed TB, and under diagnosed malignancy. Although this may not be inappropriate in resource-limited settings where TB is the most frequent easily treatable cause of lymphadenopathy, diagnostic delays can be detrimental to patients with malignancy. It is important that patients with lymphadenopathy undergo a full diagnostic work-up including sampling for histological evaluation to obtain an accurate diagnosis. PMID- 29031290 TI - Privately practising nurse practitioners' provision of care subsidised through the Medicare Benefits Schedule and the Pharmaceutical Benefits Scheme in Australia: results from a national survey. AB - Objective Since legislative changes in 2010, certain health care services provided by privately practising nurse practitioners (PPNPs) in Australia have been eligible for reimbursement under the Medicare Benefits Schedule (MBS) and the Pharmaceutical Benefits Scheme (PBS). The aim of the present study was to describe survey results relating to the care provided by PPNPs subsidised through the MBS and PBS.Methods PPNPs in Australia were invited to complete an electronic survey exploring their practice activities. Quantitative data were analysed using descriptive statistics and 95% confidence intervals were calculated for percentages where relevant. Free text data were analysed using thematic analysis.Results Seventy-three PPNPs completed the survey. The most common form of payment reported (34%; n=25) was payment by direct fee for service (MBS rebate only, also known as bulk billing). Seventy-five per cent of participants (n=55) identified that there were aspects of care delivery not adequately described and compensated by the current nurse practitioner (NP) MBS item numbers. 87.7% (n=64) reported having a PBS prescriber authorisation number. Themes identified within the free text data that related to the constraints of the MBS and PBS included 'duplication of services' and 'level of reimbursement'.Conclusion The findings of the present study suggest that PPNPs are providing subsidised care through the MBS and PBS. The PPNPs in the present study reported challenges with the current structure and breadth of the NP MBS and PBS items, which restrict them from providing complete episodes of patient care.What is known about the topic? Since the introduction of legislative changes in 2010, services provided by PPNPs in Australia have been eligible for subsidisation through the MBS and PBS.What does this paper add? This paper provides data on PPNPs' provision of care subsidised through the MBS and PBS.What are the implications for practitioners? Eligibility to provide care subsidised through the MBS and PBS has enabled the establishment of PPNP services. The current breadth and structure of the NP MBS and PBS item numbers have restricted the capacity of PPNPs to provide complete episodes of patient care. PMID- 29031291 TI - Metal speciation analysis of petroleum: Myth or reality? AB - Metals occurring in crude oil in a great variety of complexed forms are minor but important constituents as they affect the refining and production operations, as well as participate in geochemical processes. These roles of metals are thought to be related to their chemical state the knowledge of which requires performing speciation analysis. While exact metal speciation in crude oil still remains obscure, earnest efforts to decipher it based on using up-to-date hyphenated techniques have been attempted in the past decade. With various levels of fractionation of vanadium and nickel species, liquid chromatography with ICP-MS detection allows for an insight into metal distribution in crude oil or its fractions, according to species molecular weight or polarity. Further speciation information on the metal coordination in a variety of porphyrin compounds can be gained by the use of Fourier transform ion cyclotron resonance mass spectrometry. Individual species of mercury are often available for quantification with gas chromatography-ICP-MS as the method of choice. This mini-review is aimed at revealing and giving rise to the development of those speciation strategies and approaches that can achieve the objectives of identification, characterization and determination of metal species in crude oil and its fractions. PMID- 29031292 TI - A new integrated TLC/MU-ATR/SERS advanced approach for the identification of trace amounts of dyes in mixtures. AB - The present research is focused on the setting up of an advanced analytical system for the detection of synthetic dyes. The system is based on the combination of an innovative thin layer chromatography (TLC) plate coupled with enhanced infrared (MU-ATR, metal underlayer attenuated total reflection) and Surface Enhanced Raman (SERS) spectroscopy. In particular, a TLC plate made of silver iodide (AgI) applied onto a gold coated glass slide (AgI@Au) is proposed as an efficient stationary phase for the separation of dyes mixtures. The separated dyes are then identified by means of both enhanced FTIR and SERS, performed directly on the same eluted spots. The use of a mid-IR transparent inorganic salt as stationary phase coupled with the underneath gold layer avoids spectral interferences, enhancing the signal obtained from ATR analyses. At the same time, SERS spectra can be recorded as the TLC plate may act as a SERS active substrate due to the photoreduction of AgI to metallic Ag caused by the exposure to the laser during the Raman analysis. Different mixtures of synthetic dyes of known composition, widely used in dyeing processes, have been tested and the method resulted to be effective in identifying trace amounts in the order of tens nanograms. Moreover, the method has been further evaluated on a real case study represented by dyes extracted from dyed wool. PMID- 29031293 TI - In situ one-pot synthesis of graphitic carbon nitride quantum dots and its 2,2,6,6-tetramethyl(piperidin-1-yl)oxyl derivatives as fluorescent nanosensors for ascorbic acid. AB - Graphitic carbon nitride quantum dots (gCNQDs) when alone or containing embedded 4-amino-2,2,6,6-tetramethyl(piperidin-1-yl)oxyl) (4-AT) (gCNQDs-4-AT(embedded)) were synthesized via low temperature in situ one-pot process from diaminomaleonitrile (DAMN). The blue emission of both gCNQDs and gCNQDs-4-AT were excitation wavelength-dependent with very high fluorescence quantum yields of 43 and 51%, respectively. Further, the gCNQDs were covalently linked to 4-AT via an amide bond to give (gCNQDs-4-AT (linked)). gCNQDs were also non-covalently linked to 2,2,6,6-etramethyl(piperidin-1-yl)oxyl (TEMPO, not containing amino groups) derivatized zinc phthalocyanine (ZnPc) to form gCNQDs-TEMPO-ZnPc(pi-pi). The TEMPO-derivatized gCNQDs (gCNQDs-4-AT(embedded)), gCNQDs-4-AT(linked), or gCNQDs TEMPO-ZnPc(pi-pi) were found to be highly sensitive and selective fluorescent probes for ascorbic acid (AA) detection with limits of detection (LOD) in the nanomolar range. Hence, 4-AT (or TEMPO) functionality introduced into the gCNQDs (or ZnPc) afforded the derivation of selective and sensitive AA probes. Real samples were evaluated by the designed probes and satisfactory recoveries further confirmed the analytical applicability of the gCNQDs-based probes. PMID- 29031294 TI - A label-free and highly sensitive strategy for uracil-DNA glycosylase activity detection based on stem-loop primer-mediated exponential amplification (SPEA). AB - Uracil-DNA glycosylase (UDG) plays essential roles in base excision repair (BER) pathway by eliminating uracil from DNA to sustain the genome integrity. Sensitive detection of UDG activity is of great significance in the study of many fundamental biochemical processes and clinical applications. We develop a label free method for UDG activity detection using stem-loop primer-mediated exponential amplification (SPEA). In the presence of active UDG, the uracil base in helper hairpin probe (HP) can be excised to generate an abasic site (AP site), which can be cleaved by endonuclease IV (Endo IV) with a blocked primer released. This primer then triggers the strand displacement reaction to produce a dumb-bell structure DNA, which can initiate a loop-mediated isothermal amplification (LAMP) reaction. This reaction generates a large number of long double-strand DNA replicates, which can be stained by SYBR Green (SG) I to deliver enhanced fluorescence for quantitative detection of UDG activity. A linear range from 0.001 U/mL to 1 U/mL and a detection limit down to 0.00068 U/mL are achieved. This strategy has also been demonstrated for UDG assay in complex cell lysates, implying its great potential for UDG based clinical diagnostics and therapeutics. PMID- 29031295 TI - Competitive amperometric immunosensor for determination of p53 protein in urine with carbon nanotubes/gold nanoparticles screen-printed electrodes: A potential rapid and noninvasive screening tool for early diagnosis of urinary tract carcinoma. AB - Since p53 protein has become recognized biomarker for both diagnostic and therapeutic purposes in oncological diseases with particular relevance for bladder cancer, it is highly desirable to search for a novel sensing tool for detecting the patient's p53 level at the early stage. Here we report the first study on the development and validation of a novel disposable competitive amperometric immunosensor for determination of p53 protein at subnanomolar levels, based on p53 immobilization on gold nanoparticles/carbon nanotubes modified screen-printed carbon electrodes. The assay protocol requires the use of single anti-p53 mouse monoclonal antibody (DO-7 clone), able to recognize both wild-type and mutant p53. The developed immunosensor as well as the protocol of the electrochemical immunoassay were optimized by means of an experimental design procedure to assess the suitability of the device to be validated and applied for the determination of p53 in untreated and undiluted urine samples. It was found that the developed competitive immunodevice was able to achieve wide linear range detection of wild-type p53 from 20 pM to 10 nM with a low detection limit of 14 pM in synthetic urine samples, suggesting the sensor's capability of working in a complex sample matrix. The excellent performance results also in terms of selectivity, trueness and precision, coupled with the advantages of an easy preparation and low-cost assay in contrast to other methods which require very complex, time-consuming and costly nanostructured architectures, makes the developed competitive immunosensor an analytically robust diagnostic tool, valuable for implementation of screening and follow-up programs in patients with urologic malignancies. PMID- 29031296 TI - Corrigendum to "A simple and rapid method for isotopic analysis of nickel, copper, and zinc in seawater using chelating extraction and anion exchange" [Anal. Chim. Acta 967 (2017) 1-11]. PMID- 29031297 TI - 3-Dimensional X-ray microtomography methodology for characterization of monolithic stationary phases and columns for capillary liquid chromatography - A tutorial. AB - In this tutorial we describe a fast, nondestructive, three-dimensional (3-D) view approach to be used in morphology characterization of capillary monoliths and columns by reconstruction from X-ray microtomography (XMT) obtained by acquiring projection images of the sample from a number of different directions. The method comprises imaging acquisition, imaging reconstruction using specific algorithms and imaging analysis by generation of a 3-D image of the sample from radiographic images. The 3-D images show the morphological data for bulk macropore space and skeleton connectivity of the monoliths and were compared with other images from imaging techniques such as scanning electron microscopy (SEM) and field emission scanning electron microscopy (FESEM) and with chromatographic performance. The 3 D XMT methodology is applicable for organic and inorganic capillary chromatographic monolithic materials and it allows the acquisition of many hundreds (in our case 1001 projections) of longitudinal and cross-sectional images in a single session, resolving morphological details with a 3D-view of the monolithic structure, inclusive inside the column in a sectional structure with volume (three dimensions) when compared to the sectional structure area (with only two dimensions) when using SEM and FESEM techniques. PMID- 29031298 TI - Game meat authentication through rare earth elements fingerprinting. AB - Accurate labelling of meat (e.g. wild versus farmed, geographical and genetic origin, organic versus conventional, processing treatment) is important to inform the consumers about the products they buy. Meat and meat products declared as game have higher commercial value making them target to fraudulent labelling practices and replacement with non-game meat. We have developed and validated a new method for authentication of wild rabbit meat using elemental metabolomics approach. Elemental analysis was performed using rapid ultra-trace multi-element measurement by inductively coupled plasma mass spectrometry (ICP-MS). Elemental signatures showed excellent ability to discriminate the wild rabbit from non-wild rabbit meat. Our results demonstrate the usefulness of metabolic markers -rare earth signatures, as well as other trace element signatures for game meat authentication. PMID- 29031299 TI - Marker discovery in volatolomics based on systematic alignment of GC-MS signals: Application to food authentication. AB - Starting with an experiment to authenticate walnut oils based on GC-MS analysis of the volatolome, this paper aims to demonstrate the relevance of a two-step alignment-based strategy for the systematic research of VOC markers. The first step of the treatment consists of roughly reducing the time shifts with efficient, known warping techniques like COW (Correlation Optimized Warping). The second step relies on an accurate peak apex alignment in order to refine residual local misalignments and to enable further systematic marker research through univariate or multivariate data treatments. This two-step strategy was implemented on 117 GC-MS analyses of the volatolome of three vegetable oils with very similar composition. During the analysis campaign, the GC-MS system was intentionally subjected to instrumental drifts in order to generate realistic signal shifts. The first part of this study aims to assess the efficiency of the warping-based strategy in terms of signal alignment and sample discrimination. Whereas no distinction between the three oils was possible with unaligned raw GC MS data, the application of COW enabled a significant but insufficient improvement of both reduction of temporal drifts and between-group separation with 79% of samples being well-classified according to Linear Discriminant Analysis (LDA). Applying the peak apex alignment procedure to COW-treated signals resulted in a suitable correction of the remaining local distortions and improved the proportion of well-classified samples in LDA to 100%. The second part of this study assesses the robustness of the discriminant markers highlighted in this approach by: (i) discussing the relevance of the best markers involved in the LDA model, where a close review of literature confirmed the consistency for two of them, and (ii) validating highlighted makers by retrieving the set of the 23 markers previously determined by manual processing among those automatically found. The third part shows the potential of the systematic approach for untargeted detection of 184 highly significant relevant markers from the oil volatolome. Finally, the fourth part presents a comparison of our hybrid alignment strategy with two reference alignment methods (iCoshift and STW) in order to assess quality alignment of the GC-MS data and to show the three methods' abilities to detect discriminant markers. PMID- 29031300 TI - Optimal preprocessing of serum and urine metabolomic data fusion for staging prostate cancer through design of experiment. AB - Accurate classification of cancer stages will achieve precision treatment for cancer. Metabolomics presents biological phenotypes at the metabolite level and holds a great potential for cancer classification. Since metabolomic data can be obtained from different samples or analytical techniques, data fusion has been applied to improve classification accuracy. Data preprocessing is an essential step during metabolomic data analysis. Therefore, we developed an innovative optimization method to select a proper data preprocessing strategy for metabolomic data fusion using a design of experiment approach for improving the classification of prostate cancer (PCa) stages. In this study, urine and serum samples were collected from participants at five phases of PCa and analyzed using a 1H NMR-based metabolomic approach. Partial least squares-discriminant analysis (PLS-DA) was used as a classification model and its performance was assessed by goodness of fit (R2) and predictive ability (Q2). Results show that data preprocessing significantly affect classification performance and depends on data properties. Using the fused metabolomic data from urine and serum, PLS-DA model with the optimal data preprocessing (R2 = 0.729, Q2 = 0.504, P < 0.0001) can effectively improve model performance and achieve a better classification result for PCa stages as compared with that without data preprocessing (R2 = 0.139, Q2 = 0.006, P = 0.450). Therefore, we propose that metabolomic data fusion integrated with an optimal data preprocessing strategy can significantly improve the classification of cancer stages for precision treatment. PMID- 29031301 TI - Zwitterionic-hydrophilic interaction capillary liquid chromatography coupled to tandem mass spectrometry for the characterization of human alpha-acid glycoprotein N-glycan isomers. AB - In this work, a MUZIC-HILIC-MS/MS methodology was established in negative ion mode for the characterization of glycan isomers. The possibility to separate the glycan isomers by the MUZIC-HILIC strategy coupled to a high resolution tandem mass spectrometry detection permitted us to obtain valuable information about each glycan structure. The most important diagnostic ion fragments previously described to characterize structural features of glycans, were evaluated in this study using hAGP as model glycoprotein. The assignation of hAGP glycan isomers performed in our previous work using the GRIL strategy in combination with exoglycosidase digestion [1] was used in this paper to confirm or discard some ion fragments reported in the literature and delve into the structural characterization of glycan isomers. Sialic acid as well as fucose linkage-type glycan isomers were assigned using this approach and daughter ions with higher diagnostic value were determined. The location of alpha2-3/alpha2-6 sialic acids on antennas and a deeper characterization of several highly sialylated tri- and tetraantennary glycans was also possible using the established MS/MS method. Moreover, relying on the characterization performed in Ref. [1], core and antenna fucosylation were differentiated in this work using specific ion fragments obtained in the tandem mass spectra. This methodology was also applied to hAGP purified from control and pathological serum samples, which corroborated its robustness and its potential for finding novel glycan-based biomarkers in patho glycomic studies. PMID- 29031302 TI - Fast quantitation of opioid isomers in human plasma by differential mobility spectrometry/mass spectrometry via SPME/open-port probe sampling interface. AB - Mass spectrometry (MS) based quantitative approaches typically require a thorough sample clean-up and a decent chromatographic step in order to achieve needed figures of merit. However, in most cases, such processes are not optimal for urgent assessments and high-throughput determinations. The direct coupling of solid phase microextraction (SPME) to MS has shown great potential to shorten the total sample analysis time of complex matrices, as well as to diminish potential matrix effects and instrument contamination. In this study, we demonstrate the use of the open-port probe (OPP) as a direct and robust sampling interface to couple biocompatible-SPME (Bio-SPME) fibres to MS for the rapid quantitation of opioid isomers (i.e. codeine and hydrocodone) in human plasma. In place of chromatography, a differential mobility spectrometry (DMS) device was implemented to provide the essential selectivity required to quantify these constitutional isomers. Taking advantage of the simplified sample preparation process based on Bio-SPME and the fast separation with DMS-MS coupling via OPP, a high-throughput assay (10-15 s per sample) with limits of detection in the sub-ng/mL range was developed. Succinctly, we demonstrated that by tuning adequate ion mobility separation conditions, SPME-OPP-MS can be employed to quantify non-resolved compounds or those otherwise hindered by co-extracted isobaric interferences without further need of coupling to other separation platforms. PMID- 29031303 TI - Current advances and challenges in microfluidic free-flow electrophoresis-A critical review. AB - The research field on microfluidic free-flow electrophoresis has developed vast amounts of devices, methods, applications and raised new questions, often in analogy to conventional techniques from which it derives. Most efforts have been employed on device development and a myriad of architectures and fabrication techniques have been reported using simple proof-of-principle separations. As technological aspects reach a quite mature state, researchers' new challenges include the development of protocols for the separation of complex mixtures, as required in the fields of application. The success of this effort is extremely dependent on the capability to transfer the device's fabrication to an industrial setting as well as to ensure interfacing simplicity, namely at the solutions' supply and collection, and actuation such as electric potential application and temperature control. Other advanced applications such as direct interfacing to downstream systems such as mass spectrometry, integration of sensing and feedback controls will require further development in the laboratory. In this review we provide an overview on the field, from basic concepts, through advanced developments both in the theoretical and experimental arenas, and addressing the above details. A comprehensive survey of designs, materials and applications is presented with particular highlights to most recent developments, namely the integration of electrodes, flow control and hyphenation of microfluidic free-flow electrophoresis with other techniques. PMID- 29031304 TI - Coupling of the ring-oven-based preconcentration technique and surface-enhanced Raman spectroscopy: Application for the determination of purine bases in DNA. AB - In this paper, we present the advantages and limitations of the coupling of a ring-oven-based preconcentration technique and surface-enhanced Raman spectroscopy (SERS). Three different methods to promote analyte adsorption on gold nanoparticles using crystal violet as a probe molecule were assessed. The results showed significant improvements in sampling process, selectivity, sensitivity, repeatability (less than +/- 10%), and detection limits (nanomolar level) using a sample volume as small as 300 MUL. Finally, the standard addition method was successfully applied to the quantitative SERS detection of adenine and guanine in calf thymus DNA after ring-oven preconcentration with a calculated value of (G + C)/(A + T) close to the literature value. This work could therefore pave the way to quantifying a wide variety of biologically relevant compounds in real-world samples via the use of a biodegradable, low-cost and disposable paper platform for SERS. PMID- 29031305 TI - Do cancer patients with high levels of distress benefit more than less distressed patients from outpatient art therapy? AB - PURPOSE: Several studies have evaluated the effectiveness of art therapy for cancer patients. Our aim was to determine the effects of outpatient art therapy on the quality of life (QoL) of highly vs. less distressed cancer patients. METHODS: Participants completed the EORTC QLQ-C30 to measure QoL and the HADS to measure distress level before the intervention (t1), after completing the intervention (t2), and 6-months after t2 (t3). We performed analyses of covariance with repeated measures to test for group differences (highly vs. less distressed). We determined clinically relevant change scores and effect sizes in QoL domains (t1-t2; t1-t3) in patients with low vs. high levels of distress. RESULTS: 53 patient's participated at all three measuring points. Less (N = 22) vs. highly distressed patients (N = 31) differed at baseline and follow-up in their global QoL (mean t1:64.0 > 44.6; t2:65.5 > 55.6; t3:66.0 > 51.6; p = 0.01), emotional functioning (t1:65.2 > 37.4; t2:69.3 > 44.6; t3:57.8 > 48.5; p = 0.01), social functioning (t1:65.2 > 41.9; t2:77.3 > 52.7; t3:73.5 > 54.3; p = 0.01), cognitive functioning (t1:76.5 > 57.5; t2:74.4 > 62.4; t3:77.3 > 62.9; p = 0.02). There was no evidence of changes in physical functioning, role functioning, fatigue, pain, or insomnia. Interactions between distress, QoL, and time were not found. Effect sizes for clinical changes in QoL were medium regarding role functioning (Difft1-t3 = -14.4), fatigue (Difft1-t3 = -12.6) in the total group as well as in highly and less distressed patients. CONCLUSION: No evidence of outpatient art therapy having an effect on QoL in cancer patients over time was found, in patients with either high or low levels of distress at baseline. Consequently, it remains unclear which patients benefit the most from art therapy. PMID- 29031306 TI - Everyday life after a radical prostatectomy - A qualitative study of men under 65 years of age. AB - PURPOSE: The purpose of this study was to illuminate how men under 65 years of age experience their everyday Life one year or more after a radical prostatectomy for localised prostate cancer. METHOD: Interviews with 19 men aged under 65 were performed 12-18 months after their radical prostatectomy. The interviews were analysed using a thematic content analysis. RESULTS: The analysis of the interviews revealed three categories of experiences: 'Paying a price for survival', 'Feeling sidestepped' and 'Living with death lurking around the corner'. The side effects of the prostatectomy, such as sexual dysfunction, resulted in a changed self-image with a loss of manliness and reduced self esteem. The men felt sidestepped and that they did not receive enough support. Prostate cancer was experienced as an embarrassing disease and the men felt their fundamental needs could not be openly discussed. Having cancer was associated with death. Thoughts about death faded away during recovery after the operation, but grew stronger in certain situations and reminded the men about their cancer. Returning to work and to previous activities helped them cope with the thoughts about death. CONCLUSIONS: Our study suggests a need for improved rehabilitation after a radical prostatectomy, including more structured sexual rehabilitation, and involving the partner. Sharing the experiences of other men who have undergone prostate cancer surgery may also be beneficial. PMID- 29031307 TI - Emotional concerns and coping strategies in Low Grade Glioma patients and reliability of their caregivers in reporting these concerns: Findings from a cross-sectional study. AB - PURPOSE: To explore the emotional concerns and coping strategies of patients with Low Grade Glioma (LGG) and whether or not their caregivers are reliable in reporting these concerns as surrogate informants. METHODS: An explorative cross sectional study. Patients who had undergone a neurosurgical procedure at least one year before this study for LGG and who were capable of participating in a face-to-face interview were included. Each patient nominated a reference caregiver. Both the patient and the caregiver were interviewed independently, using the Beck Depression Inventory Scale, the State - Trait Anxiety Inventory, and the Jalowiec Coping Scale. MAIN RESULTS: Forty-six patients and 46 caregivers were included. The average scores of the Beck scale were homogeneous between patients and caregivers (7.76 [CI 95% 5.76-9.75] vs. 6.23 [CI 95% 4.57-7.90]; p = 0.102). Patients reported significantly greater state and trait anxiety (44.26 [CI 95% 40.21-48.31] and 37.95 [CI 95% 34.97-40.94]), respectively compared to their caregivers (40.28 [CI 95% 36.64-43.91] and 35.17 [CI 95% 32.16-38.18]). The coping strategies enacted were homogeneous between patients and caregivers (82.78 [CI 95% 77.21-88.35] vs (80.93 [CI 95% 76.32-85.55]; p = 0.102) while the kind of strategies adopted were significantly diverse. CONCLUSIONS: Patients suffer from depression and greater state anxiety as compared to trait anxiety; moreover, they enact less than half of the available coping strategies. Caregivers may be involved as surrogate informants when necessary for health-care professionals to detect depression while more caution is advised for what concerns anxiety and the coping strategies enacted by patients. PMID- 29031308 TI - Quality of life among Korean gastrointestinal cancer survivors. AB - PURPOSE: The number of gastrointestinal (GI) cancer survivors has been steadily increasing owing to early diagnosis and improved cancer treatment outcomes. The quality of life (QoL) of cancer survivors can provide distinct prognostic information and represent their functioning. This study aimed to investigate the levels of symptoms, psychological distress, and QoL of GI cancer survivors, and identify factors associated with QoL. METHOD: A cross-sectional survey was conducted among 145 survivors of gastric or colorectal cancer in a university affiliated hospital, Seoul, South Korea. The questionnaire consisted of the M. D. Anderson Symptom Inventory Gastrointestinal Cancer Module, Distress Thermometer, and brief version of the World Health Organization Quality of Life Assessment Instrument. Quantile regression was used to assess the associated factors of QoL. The 10th, 25th, 50th, 75th, and 90th conditional quantiles were considered. RESULTS: The most common symptoms were fatigue (24.9%), numbness or tingling (17.2%), feeling bloated (17.2%), dry mouth (15.9%), and difficulty remembering (11.8%). Thirty-two percent (47/145) of the participants reported severe distress. A level of symptoms was significantly associated in the 10th and 25th quantiles, representing poor QoL. Economic burden was a significant influencing factor in all quantiles. CONCLUSION: Our results indicate that high burden from symptoms might be associated with lower QoL in GI cancer survivors, and higher economic burden from cancer treatment was associated with lower QoL. These results suggest that symptom management and support for economic difficulties should be included in the strategies to enhance the QoL of GI cancer survivors. PMID- 29031309 TI - Measuring family needs of people living with cancer. Portuguese validation and descriptive studies of the Family Inventory of Needs. AB - PURPOSE: The aim of this study was to validate the Portuguese version of the Family Inventory of Needs (FIN). The FIN aims to measure important family needs and their fulfilment by a healthcare team. METHODS: This cross-sectional study involved a sample of 364 family members of cancer patients, recruited from three medical institutions and through online recruitment. Three instruments were used: a socio-demographic questionnaire, the FIN and the Brief Symptom Inventory - 18 (BSI-18). Construct validity and reliability were considered regarding the FIN's psychometric properties. The method used to determine construct validity was factor structure analysis (confirmatory factor analysis), inter-factor correlations (Spearman's rank correlation) and convergent validity (Spearman's rank correlation). To assess scale reliability, the FIN's internal consistency was evaluated (Cronbach's alpha coefficient). Descriptive and frequency statistics and tests to compare means were used to assess important needs and to what extent they were met. RESULTS: The four-factor structure of the FIN was confirmed. Thus, the FIN has four domains: Basic Information, Information on treatment and care, Support and Patient Comfort. Convergent validity with the BSI 18 was verified. Both subscales of the FIN and each domain exceeded the minimum reliability standard of 0.70. Family members also reported important needs that were not adequately met by healthcare professionals. CONCLUSIONS: The Portuguese version of the FIN seems to be a reliable and valid tool for identifying cancer patients' important family needs and to what extent these are met. PMID- 29031310 TI - In a bad place: Carers of patients with head and neck cancer experiences of travelling for cancer treatment. AB - PURPOSE: To explore the effect that treatment-related commuting has on carers of patients with head and neck cancer. METHOD: Semi-structured interviews, thematically analysed, with 31 carers. RESULTS: Treatment-related commuting had a considerable impact on carers of patients with head and neck cancer, both in practical terms (economic costs, disruption) and also in psychological terms. Many carers of patients with head and neck cancer described becoming distressed by their commute. Some carers from large urban cities appeared to have hidden commuting burdens. Some carers respond to commuting stress by 'zoning out' or becoming 'like zombies'. CONCLUSIONS: Treatment-related travel for head and neck cancer can have significant practical and psychological impacts. Health professionals should be aware of the impacts that commuting can have on head and neck caregivers. Health services may be able to take practical steps, such as providing subsidized parking, to address head and neck carergivers' difficulties. PMID- 29031311 TI - Nurses' perceptions of providing psychosexual care for women experiencing gynaecological cancer. AB - PURPOSE: To gain insight into how Western Australian nurses conceptualise the provision of psychosexual care for women undergoing gynaecological cancer treatment and how this aligns with nurses globally. METHODS: A qualitative descriptive design was chosen to facilitate insight into nurses' perspectives of their reality. Seventeen nurses working at a tertiary women's hospital in Western Australia participated in one-on-one interviews and were asked to describe their perceptions and identify factors that facilitate or challenge psychosexual care provision. RESULTS: Data analysis revealed five themes affecting the provision of psychosexual care: (1) Nurses use strategies to aid the conversation (subthemes: supporting the woman, facilitating engagement); (2) Women have unique psychosexual needs (subthemes: diversity, receptiveness); (3) Nurses are influenced by personal and professional experience and values (subthemes: confidence, values, making assumptions); (4) Systems within the health service affect care (subthemes: being supported by the system, working as a team); and (5) Society influences attitudes around sexuality. Nurses' views differed around whether these factors had a positive or negative impact on the conversation required to provide this care. CONCLUSIONS: Factors influencing nurses' provision of psychosexual care are multifaceted and differ amongst nurses. Recommended strategies to improve service provision include guidelines and documentation to integrate assessment of psychosexual issues as standard care, encouraging shared responsibility of psychosexual care amongst the multidisciplinary team and implementing education programs focussed on improving nurses' confidence and communication skills. PMID- 29031312 TI - Coping strategies of children treated for leukemia in China. AB - PURPOSE: To describe the coping strategies and preferred coping style of Chinese children with leukemia during hospitalization. METHODS: In-depth interview with a semi-structured interview were conducted with 29 Chinese children who underwent leukemia treatment. The Kippendorf's content analysis method was used to data analysis. RESULTS: During the hospitalization, children had three ways of psychological adjustment: Self-regulation, assistance of health professionals, helping of parents. There were many coping strategies. Problem-focused coping included seeking information and problem solving, and emotion-focused coping included seek emotional support, self-control, acceptance, seeking other rewards. CONCLUSIONS: Children use different coping styles consistent with their cognitive development stage, and Chinese traditional culture affects children's coping strategies. PMID- 29031313 TI - Routes to diagnosis for men with prostate cancer: men's cultural beliefs about how changes to their bodies and symptoms influence help-seeking actions. A narrative review of the literature. AB - PURPOSE: To examine the findings of existing studies in relation to men's cultural beliefs about changes to their bodies relevant to prostate cancer and how these affect interpretation of bodily changes and help-seeking actions. METHOD: We undertook a narrative review of studies conducted from 2004 to 2017 in 6 databases that highlighted men's beliefs and help-seeking actions for bodily changes suggestive of prostate cancer. RESULTS: Eighteen (18) studies reflecting men from various ethnicities and nationalities were included. The belief that blood and painful urination were warning signs to seek medical help delayed help seeking among men compared to men that did not experience these symptoms. The belief that urinary symptoms such as dribbling, cystitis and urinary hesitancy were transient and related to ageing, normality and infection significantly delayed symptom appraisal and help-seeking. Men also held the belief that sexual changes, such as impotence and ejaculation dysfunction were private, embarrassing and a taboo. These beliefs impeded timely help-seeking. Cultural beliefs, spirituality and the role of wives/partners were significant for men to help appraise symptoms as requiring medical attention thus sanctioning the need for help-seeking. CONCLUSIONS: This review underscores a critical need for further empirical research into men's beliefs about bodily changes relevant to prostate health and how these beliefs affect their interpretation of symptoms and subsequent help-seeking actions. PMID- 29031314 TI - Corrigendum to "Aiming for a holistic integrated service for men diagnosed with prostate cancer - Definitions of standards and skill sets for nurses and allied healthcare professionals" [Eur. J. Oncol. Nurs. 29 (2017) 31-38]. PMID- 29031315 TI - Exploration of life experiences of positive growth in long-term childhood cancer survivors. AB - PURPOSE: The aim of this study was to explore experiences of positive growth in long-term childhood cancer survivors, from their perspective. METHODS: Fifteen long-term survivors of childhood cancer provided descriptions of their experiences. Data were collected through face-to-face interviews and the analysis was based on Giorgi's phenomenological research method. RESULTS: The analysis of positive growth experienced by long-term childhood cancer survivors revealed three themes: self-directed life, normalcy in life, and inner maturity. Long-term survivors defined positive growth as a successful transition to a self satisfactory life based on motivation acquired through their cancer experience and on subjective goal-setting, as well as becoming cancer-free and living a normal life within society. They seemed to have acquired optimistic, flexible, active attitudes toward life while demonstrating profound gratefulness and consideration of people around them, as well as prudent approaches to health. CONCLUSIONS: The findings of this study verified that long-term survivors of childhood cancer have grown positively due to their negative past experience. We expect these findings to contribute to the development of programs that promote positive growth in long-term childhood cancer survivors. PMID- 29031316 TI - Identifying the unmet supportive care needs, with concomitant influencing factors, in adult acute leukemia patients in China. AB - PURPOSE: To understand the supportive care needs (SCNs), with associated influencing factors, related to five unmet need dimensions in adult Acute Leukemia (AL) patients, in China. METHODS: This multi-center cross-sectional study enrolled 340 pathologically confirmed adult, Chinese AL patients who were requested to complete a self-reported questionnaire, detailing demographic information, general status and physical functions, and Supportive Care Needs Survey-Short Form 34 (SCNS-SF34), revealing their unmet SCNs. The variables were statistically analyzed. RESULTS: A total of 311 (91.4%) effective questionnaires were retrieved. Among the 5 dimensions, the health information dimension scored the highest, 47.72(43.18), followed by psychological dimension, 35.00(32.50), while the sexual need scored the lowest, 0.00(24.99). As per multiple stepwise regression analysis, marital status, treatment stages and Karnofsky Performance Status index (KPS) score significantly influenced the health information dimension, while the age and "whether the treatment was the initial one or not" influenced sexual need dimension. KPS score and income were the common factors influencing the rest of the three dimensions with treatment stage adding to two of them except "physiological and daily living needs" dimension. "Being informed about your test results as soon as possible", "Being informed about things you can do to help yourself to get well" and "Being informed about cancer which is under control or in remission" were the three highest scoring entries. CONCLUSIONS: The results of this study reveal the unmet SCN's, with its influencing factors, in AL patients, the understanding of which may be of assistance in designing/delivering effective clinical nursing intervention. PMID- 29031317 TI - Emotional state and psychological flexibility in breast cancer survivors. AB - PURPOSE: This study analyses the premise that less time spent carrying out valuable activities and inflexible avoidance of thoughts, feelings and memories related to the oncological process may play an important role in the emotional problems of cancer survivors. METHODS: Emotional state was evaluated, as was quality of life and psychological flexibility in a sample of 122 breast cancer survivors (Mage = 52.40; SDage = 7.26). The analysis was carried out using a cross-sectional predictive study. RESULTS: Approximately half of those in the sample suffered from clinically significant emotional distress. The predictor variables selected explained a high percentage of the variability in emotional problems and quality of life (51.10-77.10%). CONCLUSION: Avoidance explained a high percentage of the variance in anxiety, depression and general distress. A lower degree of participation in valuable activities contributed, more specifically, to explaining variability in depression. The quantity and availability of environmental reinforcement was closely related to quality of life. A decisive contribution towards promoting emotional well-being and quality of life can be made by nursing action aimed at diminishing those avoidance strategies related to the oncological experience which may distance patients from daily activities which are gratifying and congruent with their values. PMID- 29031318 TI - Symptom clustering and quality of life in patients with ovarian cancer undergoing chemotherapy. AB - PURPOSE: The symptom clusters in patients with ovarian cancer undergoing chemotherapy have not been well evaluated. We investigated the symptom clusters and effects of symptom clusters on the quality of life of patients with ovarian cancer. METHOD: We recruited 210 ovarian cancer patients being treated with chemotherapy and used a descriptive cross-sectional study design to collect information on their symptoms. To determine inter-relationships among symptoms, a principal component analysis with varimax rotation was performed based on the patient's symptoms (fatigue, pain, sleep disturbance, chemotherapy-induced peripheral neuropathy, anxiety, depression, and sexual dysfunction). RESULTS: All patients had experienced at least two domains of concurrent symptoms, and there were two types of symptom clusters. The first symptom cluster consisted of anxiety, depression, fatigue, and sleep disturbance symptoms, while the second symptom cluster consisted of pain and chemotherapy-induced peripheral neuropathy symptoms. Our subgroup cluster analysis showed that ovarian cancer patients with higher-scoring symptoms had significantly poorer quality of life in both symptom cluster 1 and 2 subgroups, with subgroup-specific patterns. The symptom clusters were different depending on age, age at disease onset, disease duration, recurrence, and performance status of patients with ovarian cancer. In addition, ovarian cancer patients experienced different symptom clusters according to cancer stage. CONCLUSIONS: The current study demonstrated that there is a specific pattern of symptom clusters, and symptom clusters negatively influence the quality of life in patients with ovarian cancer. Identifying symptom clusters of ovarian cancer patients may have clinical implications in improving symptom management. PMID- 29031319 TI - Predictors of health-related quality of life in Korean prostate cancer patients receiving androgen deprivation therapy. AB - PURPOSE: We aimed to examine the level of psychological distress, fatigue, and health-related quality of life (HRQOL) and identify HRQOL predictors in men with prostate cancer receiving androgen deprivation therapy (ADT). METHODS: Using a cross-sectional design, we recruited 161 men with prostate cancer receiving ADT (mean age, 73 years) at two university-based hospitals in South Korea. Participants completed a self-reported questionnaire. Measures included the Hospital Anxiety and Depression Scale (HADS), the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) subscale, and the Functional Assessment of Cancer Therapy-Prostate (FACT-P). RESULTS: The mean scores were 3.3 (SD = 2.8) for anxiety with a prevalence of 8.9%, 5.7 (SD = 3.8) for depression with a prevalence of 25.5%, and 30.3 (SD = 7.4) for fatigue with a prevalence of 15.6%. The five FACT-P subscale means were 23.9 (SD = 4.3) for physical well-being, 15.4 (SD = 6.4) for social well-being, 18.5 (SD = 4.3) for emotional well-being, 17.3 (SD = 5.6) for functional well-being, and 30.3 (SD = 7.4) for the prostate cancer specific subscale. Multiple linear regression analysis revealed that depression, which was inversely associated with all FACT-P subscales, was the strongest predictor of worse HRQOL. Fatigue and comorbid conditions were also associated with the HRQOL of multiple domains. CONCLUSION: This study suggests that intervention aimed at improving HRQOL of men receiving ADT should include depression, fatigue, and comorbidity management. PMID- 29031320 TI - Burnout and its relationship with personality factors in oncology nurses. AB - PURPOSE: To assess burnout levels in oncology nurses, to evaluate at what stage of burnout suffering they are and to analyze the relationship between burnout with personality factors. METHOD: A quantitative, observational, cross-sectional multicenter study was done. Oncology nurses (n = 101) from the Andalusian Health Service (Andalusia, Spain) were included. The main variables were personality factors, assessed with the NEO-FFI questionnaire, anxiety and depression, assessed with the Educational-Clinical Questionnaire: Anxiety and Depression, and burnout, evaluated with the Maslach Burnout Inventory. Student t-statistic was used for hypothesis contrasts and Pearson's correlation coefficient was used to establish the association between personality factors and burnout. RESULTS: According to the burnout phases model, 29.6% of the sample is in the most severe phases. Emotional exhaustion and depersonalization are positively correlated with neuroticism and negatively correlated with agreeableness, conscientiousness, extraversion and openness. Personal accomplishment has a negative correlation with neuroticism and negative correlations with agreeableness, conscientiousness, extraversion and openness. Finally, emotional exhaustion and depersonalization have a positive correlation with anxiety and depression, while personal accomplishment has a negative correlation with anxiety and depression. CONCLUSIONS: A significant number of oncology nurses are in the most severe stages of burnout suffering. Personality factors have a key role in burnout development. The importance of personality factors in burnout development should be taken into account. PMID- 29031322 TI - Cultural Factors in Ethics Consultations. PMID- 29031321 TI - Patients' experience of decision-making and receiving information during radiation therapy: A qualitative study. AB - PURPOSE: This study aimed to explore: (i) patient perceptions of how they are involved in treatment decisions about radiation therapy; (ii) patient knowledge and understanding of treatment; and (iii) what patients value in their interactions with the radiation therapy treatment team. METHOD: Patients were recruited through radiation oncology departments at metropolitan hospital sites located in Sydney, New South Wales, Australia. Semi-structured interviews were conducted with 21 radiation therapy patients with different types of cancer. Data were analysed using a Framework analysis to compare and contrast patient experiences. RESULTS: Most patients perceived the decision to undergo radiation therapy as agreeing to radiation oncologists recommendations rather than making a choice, but they trusted their radiation oncologist and were happy to follow their advice. Only a few participants reported their radiation oncologist had explained why radiation therapy was recommended, or discussed the benefits and harms. Some participants did not feel prepared for the intensity and disruption of side effects, and conveyed uncertainty about their diagnosis and the potential risk of recurrence. Most patients, irrespective of their type of cancer, valued the treatment team showing a genuine interest in how the treatment was effecting them, and being made to feel part of the department. CONCLUSION: Greater opportunities are needed to empower patients to ask questions about their uncertainties and concerns. Improvements in these areas will benefit patients and enable them to feel better prepared and know what to expect before and after their treatment. PMID- 29031323 TI - RE: Julie K. Silver, et al, Female Physicians Are Underrepresented in Recognition Awards from the AAPM&R. PMID- 29031324 TI - Thoroughbred fatality and associated jockey falls and injuries in races in New South Wales and the Australian Capital Territory, Australia: 2009-2014. AB - Monitoring racehorse fatality and associated jockey falls provides benchmarks for intervention strategies. The aims of this study were to describe the incidence of and reasons for fatalities in Thoroughbred horses during flat races in the Australian Capital Territory and New South Wales (NSW), Australia, and to describe reported jockey falls and injuries associated with racehorse fatalities. A cohort study identified all racehorse fatalities reported through Racing NSW for the 2009-2010 to 2013-2014 racing seasons. Risks of racehorse fatality, fatal musculoskeletal injury, spontaneous death (as distinct from euthanasia) and racehorse fatality associated jockey falls and injuries were calculated using Poisson regression. A total of 167 horse fatalities were reported, with an overall incidence of 0.59 deaths/1000 starts. Forty-nine reasons for horse fatality were reported, although post-mortem examinations were conducted on only 52/165 (31.5%) horses. Musculoskeletal injury accounted for 144/167 (86.2%) fatalities, with an incidence of 0.52/1000 starts. Fractures comprised 96/167 (57.5%) fatalities, with the fetlock or proximal sesamoid bones being the most common fracture location, comprising 36/96 (37.5%) fractures. Only 22/166 (13.3%) racehorse fatalities were due to spontaneous death, representing an incidence of 0.08/1000 starts. A total of 50 racehorse fatality associated jockey falls were reported (incidence of 0.18/1000 starts), with 32 reported jockey injuries (incidence of 0.12/1000 starts). Most racehorse fatality associated jockey injuries occurred to the limbs (17/32, 53.1%), particularly the upper limb. The estimates for both horse fatality and associated jockey injury were comparable with previous estimates from other jurisdictions internationally. PMID- 29031325 TI - An observational study of the relationship between Capacity for Care as an animal shelter management model and cat health, adoption and death in three animal shelters. AB - Animal shelters struggle to function at their 'right size' in terms of physical, staffing and outcome capacity, especially with seasonal fluctuations in cat intake. To address this, a Capacity for Care (C4C) management model was devised to balance health and welfare requirements of all animals while maintaining or improving goals for positive outcomes, such as adoption or transfer. In this observational study of three shelters, applying the C4C management system gave each organization an optimal average daily shelter cat population target (to be achieved through proactive length of stay management) and helped each shelter to increase the size of their feline housing units. Pre- and post-C4C implementation data were evaluated to determine impact on average monthly isolation ward populations and cat outcomes such as adoptions and shelter deaths (euthanasia/died). Improved outcomes including increased adoption probability, decreased shelter death probability and fewer cats requiring infectious disease isolation were seen after C4C institution. Results suggest that implementation of this management model could help other shelters achieve similar results. PMID- 29031326 TI - Triglyceride concentrations in neonatal foals: Serial measurement and effects of age and illness. AB - Few studies have evaluated the effects of age and illness on serum triglyceride concentrations in neonatal foals. The objectives of this study were to evaluate triglyceride concentrations in neonatal foals and their dams through serial measurement immediately postpartum and at 1-2 days and 10-12 days of age, as well as to measure them in sick foals. Serially measured serum triglycerides in seven healthy foals varied with age. Median (range) triglyceride concentrations were 28mg/dL (12-50mg/dL), 89mg/dL (51-264mg/dL), and 60mg/dL (28-135mg/dL) immediately postpartum, at 1-2 days of age, and 10-12 days of age, respectively (P<0.001). Triglyceride concentrations varied hourly by up to 117mg/dL in individual foals. The dams had lower triglycerides (median, 20mg/dL; range, 12 49mg/dL) than the foals, once foals were >24h old. Sick foals <24h old had lower triglycerides than sick foals aged 1-7 days (median, 41mg/dL [range, 16-116]; median, 110mg/dL [range, 24-379mg/dL]; P<0.001). Age and triglyceride concentration showed a non-linear association independent of foal health status (P=0.01). Sick foals with positive bacterial cultures had higher triglycerides than those with negative cultures (median, 111mg/dL [range, 10-379mg/dL] and median 53mg/dL [range, 17-271mg/dL], respectively; P=0.033). Nonsurvivors had higher triglycerides than survivors (median, 116mg/dL [range, 41-379mg/dL] and median, 55mg/dL [range, 10-311mg/dL], respectively; P=0.04). In conclusion, triglycerides were highest in healthy neonatal foals aged 1-2 days, and in nonsurviving sick foals and those with positive bacterial cultures. Age was associated with triglyceride concentration regardless of health status. PMID- 29031327 TI - Respiratory variation in aortic blood peak velocity and caudal vena cava diameter can predict fluid responsiveness in anaesthetised and mechanically ventilated dogs. AB - BACKGROUND AND M&MS: Dynamic preload indices, such as systolic pressure variation (SPV), aortic flow peak velocity variation (DeltaVpeak) and distensibility index of the caudal vena cava (CVCDI), are reliable indices for predicting fluid responsiveness in humans. This study aimed to investigate the ability of these indices to predict fluid response in 24 healthy dogs undergoing general anaesthesia and mechanical ventilation. Aortic flow peak velocity variation (?Vpeak), CVCDI, and SPV were calculated before volume expansion (5mL/kg bolus of lactated Ringer's solution). The aortic velocity time integral (VTI) was measured before and after volume expansion as a surrogate of stroke volume. Dogs were considered responders (n=9) when the VTI increase was >=15% and non-responders (n=15) when the increase was <15%. RESULTS AND CONCLUSIONS: Before volume expansion, DeltaVpeak, CVCDI and SPV were higher in responders than in non responders (P=0.0009, P=0.0003, and P=0.0271, respectively). Receiver operating characteristic (ROC) curves were plotted for the three indices. The areas under the ROC curves for SPV, DeltaVpeak, and CVCDI were 0.91 (CI 0.73-0.99; P=0.0001), 0.95 (CI 0.77-1; P=0.0001), and 0.78 (CI 0.56-0.92; P=0.015), respectively. The best cut-offs were 6.7% for SPV (sensitivity, 77.78%; specificity, 93.33%), 9.4% for DeltaVpeak (sensitivity, 88.89%; specificity, 100%), and 24% for CVCDI (sensitivity, 77.78%; specificity, 73.33). In conclusion, DeltaVpeak, CVCDI, and SPV are reliable predictors of fluid responsiveness in healthy dogs undergoing general anaesthesia and mechanical ventilation. PMID- 29031328 TI - Minimally invasive wireless motility capsule to study canine gastrointestinal motility and pH. AB - The aim of this study was to describe the feasibility of using a gastrointestinal tract wireless motility capsule (WMC) that measured intraluminal pressure, pH and transit time through the gastrointestinal tract, in dogs in their home environment. Forty-four adult healthy dogs, eating a standard diet, were prospectively enrolled. The WMC was well tolerated by all dogs and provided data from the different sections of the gastrointestinal tract. Median gastric emptying time was 20h (range, 6.3-119h), demonstrating a large range. The gastric pressure pattern and pH depended on the phase of food consumption. The small bowel transit time was 3.1h (range, 1.6-5.4h) with average contraction pressures of 6.5mmHg (range, 1.1-21.4mmHg) and pH 7.8 (range, 7-8.9). The large bowel transit time was 21h (range, 1-69h) with average contractions pressures of 0.9mmHg (range, 0.3-2.7mmHg) and pH 6.4 (range, 5.3-8.2). There was considerable individual variation in motility patterns and transit times between dogs. No difference was observed between the sexes. No relationships between any transit time, bowel pH or pressure pattern and bodyweights were identified. The WMC likely represents movement of a large non-digestible particle rather than normal ingesta. Due to its large size, the WMC should not be use in smaller dogs. The WMC is a promising minimally invasive tool to assess GIT solid phase transit times, pressures and pH. However, further studies are necessary due to the current limitations observed. PMID- 29031329 TI - Dogs with macroadenomas have lower body temperature and heart rate than dogs with microadenomas. AB - Pituitary macroadenomas compress the hypothalamus, which partly regulates heart rate and body temperature. The aim of this study was to investigate whether heart rate and/or body temperature could aid in clinically differentiating dogs with macroadenomas from dogs with microadenomas (i.e. small non-compressive pituitary mass). Two groups of dogs diagnosed with pituitary-dependent hyperadrenocorticism (i.e. Cushing's disease) were included. Heart rate and body temperature were collected on initial presentation before any procedure. Dogs with macroadenoma had a significantly lower heart rate and body temperature (P<0.01) compared to dogs with microadenoma. We suggest that the combined cut-off values of 84 beats per minutes and 38.3 degrees C in dogs with Cushing's disease, especially with vague neurological signs (nine of 12 dogs=75%), might help to suspect the presence of a macroadenoma. PMID- 29031330 TI - Histological changes in the proximal suspensory ligament after neurectomy of the deep branch of the lateral palmar nerve of horses with induced proximal suspensory desmitis. AB - Proximal suspensory desmitis (PSD) is a common cause of lameness in the pelvic limb, but could also affect the thoracic limb of competing and non-competing horses. Most horses diagnosed with PSD in a thoracic limb respond to rest followed by controlled exercise, but in a small percentage of affected horses, lameness persists. In one study, four horses chronically lame because of PSD in a thoracic limb became sound after neurectomy of the deep branch of the lateral palmar nerve (DBLPaN), which innervates the proximal aspect of the suspensory ligament (SL; Guasco et al., 2013). Whether neurectomy of the DBLPaN results in changes in the SL that might predispose the horse to re-injury is not known. The aim of this study was to describe the findings observed during quantitative lameness evaluation, gross and histological examination of the proximal portion of the suspensory ligament (SL) of the thoracic limbs of eight horses after neurectomy of the DBLPaN performed after inducing unilateral PSD by injecting collagenase into the proximal portion of the SL. The clinical response to neurectomy was resolution of lameness in all horses. Muscle fibers of the denervated ligaments presented atrophy and were infiltrated with fat and connective tissue, thereby reducing the strength and elasticity of the ligament. PMID- 29031331 TI - Comparing subjective and objective evaluation of show jumping competition and warm-up arena surfaces. AB - The development of safety and quality standards for equestrian surfaces needs to be based on objective, repeatable measurements which allow comparisons between surfaces. These measurements should incorporate the assessment of surface performance by riders. This study provides data from objective and subjective assessment of functional properties of high-level show jumping competition and warm-up arenas. Twenty-five arenas in nine international show jumping events were evaluated by mechanical in-situ testing with a surface tester, rider assessments using visual analogue scales (198 riders provided 749 arena evaluations), descriptions of arena constructions and by laboratory tests of surface material. Mixed models were used to present subjective evaluation of rider perception of the functional properties for each arena while controlling for rider and event. The association between objective and subjective assessments were also explored creating mixed models, controlling for rider and event. Mechanical measurements of impact firmness, and to a lesser extent cushioning and grip, had a significant positive association with the riders' perception. Responsiveness as assessed by the Orono biomechanical surface tester (OBST) was negatively associated with the riders' perceptions, which suggests riders and the OBST had different concepts of this functional property and that further developments of the OBST might be necessary. Objectively measured uniformity showed no useful association with riders' perception. Even though arena assessments were made by top level riders, a substantial inter-rider variation was demonstrated. PMID- 29031332 TI - Right ventricular function during pharmacological and exercise stress testing in horses. AB - The disproportionate rise of pulmonary artery pressure compared to systemic blood pressure during exercise can lead to detrimental right ventricular remodelling in endurance athletes. Horses may act as an extreme model of these athletic cardiovascular adaptations, as they show a three fold increase in pulmonary pressures during exercise. Right ventricular function was examined in ten healthy horses using post-exercise and pharmacological stress echocardiography in a randomised cross-over design. Exercise testing was performed on a treadmill while pharmacological testing was performed using an atropine-dobutamine infusion. Heart rate, systemic blood pressure and cardiac output during echocardiography were similar post-exercise compared to maximal pharmacological stress. Systolic pulmonary artery pressure was significantly higher during the exercise test (121+/-15mmHg) and during immediate post-exercise echocardiography (93+/-10mmHg) compared to maximal pharmacological stress (69+/-12mmHg). Right ventricular diameters as well as the ratio of systolic right to left ventricular area were higher post-exercise. Right ventricular fractional area change was significantly decreased post-exercise (40.5+/-6.2%) compared to a significant increase during pharmacological stress echocardiography (72.6+/-7.3%). Serum cardiac troponin I concentration was significantly higher 2h after the pharmacological test compared to baseline values and post-exercise, although the highest value was found post exercise in the horse with the highest systolic pulmonary artery pressure and lowest right ventricular fractional area change. Pharmacological stress testing is not recommended in further studies on right ventricular adaptations in athletic horses, as this does not reproduce the effects of exercise. PMID- 29031333 TI - Benefits of Exercise in the Older Population. AB - Older adults 65 years of age and older compose a great portion of the US population. Physiologic changes of aging that limit function and general quality of life occur at a faster rate as we get older. There is high-quality evidence that exercise activity has many favorable benefits for older adults. The ideal exercise program in older adults should include aerobic, resistance, flexibility, and balance training. The exercise recommendations should be individually tailored to the abilities, precautions, and goals of each person. They also should be of sufficient intensity, volume, and duration in order to achieve maximal benefits. PMID- 29031334 TI - Alternative Treatment Modalities and Its Effect in Older Populations. AB - Aging is an inevitable multifactorial process. Advances in health care and technology have led to an increase on expected life span that can reach an average of 90 years in the next few decades. Lifestyle changes that include activity, nutrition, stress management, and alternatives low-impact exercises like yoga and tai chi can help us modify some of these age-related changes and lead to an increase in the health span and quality of life of the older adults. PMID- 29031335 TI - Can We Increase Our Health Span? AB - The deterioration of physical and mental capabilities is inevitable with aging. Some hereditary factors cannot be changed, but other external factors can be manipulated to provide our body with better weapons to improve quality of life as we age. Different cellular pathways leading to cell deterioration and aging usually act through excessive oxidative damage and chronic inflammation. Suppression of inflammation is the most important driver of successful longevity and increases in importance with advancing age. Modifying caloric intake, amount and type of food, and maintaining an active lifestyle can decrease the risk of most common chronic diseases of aging. PMID- 29031336 TI - Psychosocial Issues in Geriatric Rehabilitation. AB - Geriatric patients present multiple age-related challenges and needs that must be taken into account during the rehabilitation process to achieve expected goals. This article examines the importance of identifying and managing psychosocial issues commonly observed in older adults and presents strategies to optimize their rehabilitation process. Depression, anxiety, fear of falling, adjustment issues, neurocognitive disorders, and caregiver support are discussed as a selection of factors that are relevant for geriatric patients undergoing rehabilitation. An argument is made for the importance of comprehensive geriatric assessment in older adults to identify salient issues that may impact rehabilitation and quality of life. PMID- 29031337 TI - Physiologic Changes of the Musculoskeletal System with Aging: A Brief Review. AB - Aging is one of the important challenges of modern society. Advanced adult age is associated with changes in many physiologic systems. Of particular interest is the musculoskeletal system because it directly contributes to mobility and functional independence. Skeletal muscle mass and strength decline with age. These changes are mostly due to a reduction in the number of muscle fibers and cellular and molecular changes that reduce the force-generation process. Bone mass and architecture are compromised and may result in fractures. Tendons and ligaments undergo significant biochemical alterations that directly compromise their biomechanical function. PMID- 29031338 TI - Normal Changes in Gait and Mobility Problems in the Elderly. AB - There are normal physiologic changes that occur as people age. Gait and mobility are altered with aging, and these changes are a combination of alterations in the gait pattern and in the function of organs. Changes in gait are associated with functional decline, less independence, and impaired quality of life. Reduced walking speed is the most consistent age-related change, but there are other contributors to an altered gait: impaired balance and stability, lower extremity strength, and the fear of falling. PMID- 29031339 TI - Balance Problems and Fall Risks in the Elderly. AB - Falls in the elderly are an increasing problem causing a high degree of morbidity, mortality, and use of health care services. Identification of risk factors through medical assessment supports the provision of appropriate interventions that reduce rates of falling. Evaluation and intervention strategies are generally challenging because of the complex and multifactorial nature of falls. The clinician should consider screening for falls an important part of the functional evaluation in older adults. Several potential interventions have proven helpful as preventive strategies. Optimal approaches involve interdisciplinary collaboration in assessment and interventions, particularly exercise, attention to coexisting medical conditions, and reduction of environmental hazards. PMID- 29031340 TI - Clinical Pharmacology and the Risks of Polypharmacy in the Geriatric Patient. AB - Elderly people have several characteristics that make them unique. They have several factors such as environmental factors and demographic factors such as age, sex, socioeconomic level, and schooling, which contribute to these differences being accentuated. As one ages, these various organic and systemic features are accentuated. The pace varies between people, and organs and systems suffer from several normal and adverse changes that make them more or less susceptible to diseases and injuries, and the medications are responsible for many of these threats. This article raises awareness about these changes. PMID- 29031341 TI - Nutritional Needs of the Older Adult. AB - Older adults are particularly vulnerable to compromised nutritional status. With advancing age, the consumption of a high-quality, nutritionally dense diet is increasingly essential to optimize health and well-being. Proportionally, macronutrient needs for older adults are similar to younger adults, however overall calorie requirements tend to decline with age. Unique factors influencing food intake should be considered and individualized guidance should be designed to help overcome medical, physical, and social barriers to a healthy diet. The goal for nutrition intervention should ultimately be to promote health and quality of life across the continuum of the aging process. PMID- 29031342 TI - The Competitive Senior Athlete. AB - Clinicians should discuss common health issues of the older population and how medical problems affect their sports performance. Patients with chronic conditions, such as hypertension and diabetes mellitus, benefit from participation in sports. However, special care should be taken to keep the patient healthy and minimize effects of these conditions and their treatments in athletic performance. Another important consideration in the older athlete is fluid ingestion and the increased risk of dehydration. There is evidence that physical exercise reduces pain in osteoarthritis and enhances physical function of affected joints. Older athletes often use multiple medications and dietary supplements; Clinicians should educate patients about possible effects of medications in sports performance. PMID- 29031343 TI - Musculoskeletal Injuries and Regenerative Medicine in the Elderly Patient. AB - Regenerative medicine has gained increasing popularity in its clinical applications, particularly in the field of musculoskeletal medicine. Regenerative medicine, a broad term, can be thought of as a particular medical strategy that strives to rebuild and restore diseased tissue to normal physiologic tissue baseline. Simply put, regenerative strategies augment the body's innate physiology to heal pathologic processes. This article focuses on specific regenerative strategies and the uses of them for common pathologies in the aging adult, including platelet-rich plasma, mesenchymal stem cells, viscosupplementation, and prolotherapy. PMID- 29031344 TI - Clinical Considerations for the Use Lower Extremity Arthroplasty in the Elderly. AB - There is an increase in the aging population that has led to a surge of reported cases of osteoarthritis and a greater demand for lower extremity arthroplasty. This article aims to review the current treatment options and expectations when considering lower extremity arthroplasty in the elderly patient with an emphasis on the following subjects: (1) updated clinical guidelines for the management of osteoarthritis in the lower extremity, (2) comorbidities and risk factors in the surgical patient, (3) preoperative evaluation and optimization of the surgical patient, (4) surgical approach and implant selection, and (5) rehabilitation and life after lower extremity arthroplasty. PMID- 29031345 TI - Rehabilitation Needs of the Elderly Patient with Cancer. AB - Physiatrist taking care of the geriatric patient with cancer should be able to manage an array of conditions that might present from diagnosis throughout completion of treatments and beyond. The elderly cancer population is at greater risk of functional impairments. The physician should anticipate changes in clinical status and must adjust rehabilitation goals accordingly. Treatment options and rehabilitation goals should be tailored to help maximize quality of life in these patients. PMID- 29031346 TI - Aging with Spinal Cord Injury: An Update. AB - The 2016 National Spinal Cord Injury Statistical Center's Spinal Cord Injury (SCI) Facts and Figures reports approximately 17,000 new cases yearly, approximately 54 cases per million. The past 40 years has brought a significant change in patterns of injury. The average age has increased from 29 years in the 1970s to approximately 42 years currently; it is believed it has plateaued. Aging persons with SCI may have a higher risk of developing other medical complications. Studies report a perceived improvement in quality of life among persons with SCI with age, influenced by psychological, medical, and environmental factors. PMID- 29031347 TI - Rehabilitation Needs of the Elder with Traumatic Brain Injury. AB - The incidence of traumatic brain injury (TBI) in older adults is increasing. As the expected life expectancy increases, there is a heightened need for comprehensive rehabilitation for this population. Elderly patients with TBI benefit from rehabilitation interventions at all stages of injury and can achieve functional gains during acute inpatient rehabilitation. Clinicians should be vigilant of unique characteristics of this population during inpatient rehabilitation, including vulnerability to polypharmacy, posttraumatic hydrocephalus, neuropsychiatric sequelae, sleep disturbances, and sensory deficits. Long-term care should include fall prevention, assessment of cognitive deficits, aerobic activity, community reintegration, and caretaker support. Life expectancy is reduced after TBI. PMID- 29031348 TI - Foreword. PMID- 29031349 TI - Aging with Grace, Dignity, and Courage: A Mission for Physical Medicine and Rehabilitation. PMID- 29031350 TI - Preface. PMID- 29031351 TI - Hyperkalemia: Inpatient PaniK. PMID- 29031352 TI - Disturbances in Acid-Base, Potassium, and Sodium Balance in Patients With CKD: New Insights and Novel Therapies. PMID- 29031353 TI - Regulation of Acid-Base Balance in Chronic Kidney Disease. AB - The kidneys play a major role in the regulation of acid-base balance by reabsorbing bicarbonate filtered by the glomeruli and excreting titratable acids and ammonia into the urine. In CKD, with declining kidney function, acid retention and metabolic acidosis occur, but the extent of acid retention depends not only on the degree of kidney impairment but also on the dietary acid load. Acid retention can occur even when the serum bicarbonate level is apparently normal. With reduced kidney function, acid transport processes in the surviving nephrons are augmented but as disease progresses ammonia excretion and, in some individuals, the ability to reabsorb bicarbonate falls, whereas titratable acid excretion is preserved until kidney function is severely impaired. Urinary ammonia levels are used to gauge the renal response to acid loads and are best assessed by direct measurement of urinary ammonia levels rather than by indirect assessments. In individuals with acidosis from CKD, an inappropriately low degree of ammonia excretion points to the pathogenic role of impaired urinary acid excretion. The presence of a normal bicarbonate level in CKD complicates the interpretation of the urinary ammonia excretion as such individuals could be in acid-base balance or could be retaining acid without manifesting a low bicarbonate level. At this time, the decision to give bicarbonate supplementation in CKD is reserved for those with a bicarbonate level of 22 mEq/L, but because of potential harm of overtreatment, supplementation should be adjusted to maintain a bicarbonate level of <26 mEq/L. PMID- 29031355 TI - Adverse Effects of the Metabolic Acidosis of Chronic Kidney Disease. AB - The kidney has the principal role in the maintenance of acid-base balance, and therefore, a fall in renal net acid excretion and positive H+ balance often leading to reduced serum [HCO3-] are observed in the course of CKD. This metabolic acidosis can be associated with muscle wasting, development or exacerbation of bone disease, hypoalbuminemia, increased inflammation, progression of CKD, protein malnutrition, alterations in insulin, leptin, and growth hormone, and increased mortality. Importantly, some of the adverse effects can be observed even in the absence of overt hypobicarbonatemia. Administration of base decreases muscle wasting, improves bone disease, restores responsiveness to insulin, slows progression of CKD, and possibly reduces mortality. Base is recommended when serum [HCO3-] is <22 mEq/L, but the target serum [HCO3-] remains unclear. Evidence that increments of serum [HCO3-] >26 mEq/L might be associated with worsening of cardiovascular disease adds complexity to treatment decisions. Further study of the mechanisms through which positive H+ balance in CKD contributes to its various adverse effects and the pathways involved in mediating the benefits and complications of base therapy is warranted. PMID- 29031354 TI - Epidemiology of Acid-Base Derangements in CKD. AB - Acid-base disorders are in patients with chronic kidney disease, with chronic metabolic acidosis receiving the most attention clinically in terms of diagnosis and treatment. A number of observational studies have reported on the prevalence of acid-base disorders in this patient population and their relationship with outcomes, mostly focusing on chronic metabolic acidosis. The majority have used serum bicarbonate alone to define acid-base status due to the lack of widely available data on other acid-base disorders. This review discusses the time course of acid-base alterations in CKD patients, their prevalence, and associations with CKD progression and mortality. PMID- 29031356 TI - Management of the Metabolic Acidosis of Chronic Kidney Disease. AB - Subjects with CKD and reduced glomerular filtration rate are at risk for chronic metabolic acidosis, and CKD is its most common cause. Untreated metabolic acidosis, even in its mildest forms, is associated with increased mortality and morbidity and should therefore be treated. If reduced glomerular filtration rate or the tubule abnormality causing chronic metabolic acidosis cannot be corrected, it is typically treated with dietary acid (H+) reduction using Na+-based alkali, usually NaHCO3. Dietary H+ reduction can also be accomplished with the addition of base-producing foods such as fruits and vegetables and limiting intake of H+ producing foods like animal-sourced protein. The optimal dose of Na+-based alkali that prevents the untoward effects of metabolic acidosis while minimizing adverse effects and the appropriate combination of this traditional therapy with dietary strategies remain to be determined by ongoing studies. Recent emerging evidence supports a phenomenon of H+ retention, which precedes the development of metabolic acidosis by plasma acid-base parameters, but further studies will be needed to determine how best to identify patients with this phenomenon and whether they too should be treated with dietary H+ reduction. PMID- 29031357 TI - Regulation of Potassium Homeostasis in CKD. AB - Disturbances of potassium homeostasis can cause either hyperkalemia or hypokalemia and result in serious consequences. Although the consequences of acute and chronic hyperkalemia and treatment of these conditions in CKD have been widely appreciated by nephrologists, more recent information has focused attention on the consequences of chronic hypokalemia. Several recent studies have documented a "U-shaped" relationship between the serum [K+] and higher mortality in several clinical studies. The causes of dyskalemias are placed into the unique perspective of patients with CKD and its evolution with progression of CKD to later stages and focuses on the pathophysiology of these disorders. Emphasis is placed on the high mortality associated with both low and high levels of potassium that are unique to patients with CKD. Recent information regarding sensors of changes in the serum [K+] that evoke changes in NaCl transport in the DCT1 and subsequent efferent responses by aldosterone-responsive cells in the DCT2 and cortical collecting duct to adjust K+ secretion by the renal outer medullary potassium channel is reviewed in detail. These sensing mechanisms can be interrupted by drugs, such as the calcineurin inhibitors to cause both hypertension and hyperkalemia in kidney transplant patients, or can be inherited as familial hypertensive hyperkalemia. The role and pathogenesis of angiotensin converting enzyme inhibitors and angiotensin receptor blockers in causing hyperkalemia is a common stop point for cessation of these important drugs, but, and newer agents to lower the serum [K+] that might allow continuation of angiotensin-converting enzyme or angiotensin receptor blocker therapy are examined. Finally, the importance of emphasis on potassium-containing foods, such as fresh produce and fruit in the diets of patients with early-stage CKD, is examined as an under-appreciated area requiring more emphasis by nephrologists caring for these patients and may be unique to food-challenged patients with CKD. PMID- 29031358 TI - Hyperkalemia and Hypokalemia in CKD: Prevalence, Risk Factors, and Clinical Outcomes. AB - Abnormalities of serum potassium are common in patients with CKD. Although hyperkalemia is a well-recognized complication of CKD, the prevalence rates of hyperkalemia (14%-20%) and hypokalemia (12%-18%) are similar. CKD severity, use of medications such as renin-angiotensin-aldosterone system inhibitors and diuretics, and dietary potassium intake are major determinants of serum potassium concentration in CKD. Demographic factors, acid-base status, blood glucose, and other comorbidities contribute as well. Both hyperkalemia and hypokalemia are associated with similarly increased risks of death, cardiovascular disease, and hospitalization. On the other hand, limited evidence suggests a link between hypokalemia, but not hyperkalemia, and progression of CKD. This article reviews the prevalence rates and risk factors for hyperkalemia and hypokalemia, and their associations with adverse outcomes in CKD. PMID- 29031359 TI - Treatment of Abnormalities of Potassium Homeostasis in CKD. AB - Hyperkalemia, defined as serum potassium concentrations greater than 5.0 to 5.5 mEq/L, is a frequent occurrence in clinical practice because of the increasing incidence and prevalence of CKD. Patients at risk for this disorder are commonly treated with drugs that interfere in the renin-angiotensin-aldosterone system, thereby enhancing the occurrence and prevalence of this disorder. Discontinuation of these drugs because of the development of hyperkalemia deprives these patients the renal-protective and cardiovascular benefits this class of pharmacology has been shown to provide. Here we provide the clinician strategies to both prevent and treat hyperkalemia in patients with CKD who are prescribed these drugs. We emphasize the importance of limiting dietary potassium intake and avoiding either prescribed or over-the-counter medications that may impair renal potassium excretion. We discuss the role of kaliuretic diuretics and correction of metabolic acidosis as a therapeutic strategy. Additionally, we discuss the role of new agents designed to bind potassium in the gastrointestinal tract that can be used to maintain normokalemia in patients who previously developed hyperkalemia on renin-angiotensin-aldosterone blockers. Finally, we provide a brief discussion on how best to treat hypokalemia in patients with CKD. PMID- 29031360 TI - Sodium Homeostasis in Chronic Kidney Disease. AB - The pathologic consequences of sodium retention in the CKD population can lead to hypertension, edema, and progressive disease. Sodium excess is responsible for increases in oxidative stress, which alters kidney vasculature. As progression of CKD occurs, hyperfiltration by remaining nephrons compensates for an overall decrease in the filtered load of sodium. In the later stages of CKD, compensatory mechanisms are overcome and volume overload ensues. Nephrotic syndrome as it relates to sodium handling involves a different pathophysiology despite a common phenotype. Extrarenal sodium buffering is also examined as it has significant implications in the setting of advanced CKD. PMID- 29031362 TI - Letter from the Guest Editor: Imaging of Lymph Nodes in the Head and Neck. PMID- 29031363 TI - Chapter 1 Neck Anatomy, Imaging-Based Level Nodal Classification and Impact of Primary Tumor Site on Patterns of Nodal Metastasis. AB - The anatomy of the neck is complex, with many critical structures crowded together in a relatively small cross-sectional area. Many structures in the neck also have similar soft tissue density or signal that further complicates interpretation for the radiologist, who relies on tissue differences to create contrast resolution and distinguish structures. Head and neck cancer incidence exceeds 550,000 cases per year worldwide, with diagnosis, treatment, and prognosis relying highly on a thorough knowledge of this compact space. This article focuses on reviewing head and neck anatomy with special attention to nodal anatomy and on discussing the expected patterns of nodal spread in head and neck cancers. PMID- 29031361 TI - Treatment of Disorders of Sodium Balance in Chronic Kidney Disease. AB - Extracellular fluid volume expansion is nearly universal in patients with CKD. Such volume expansion has features similar to the syndrome of heart failure with preserved ejection fraction, which not only leads to symptoms but can also lead to further organ damage. Unique treatment challenges are present in this patient population, including low glomerular filtration, which limits sodium chloride filtration, intrinsic tubule predisposition to sodium chloride retention, and proteinuria. In addition, pharmacokinetic considerations alter the disposition of diuretics in patients with CKD and nephrotic syndrome. Maintaining extracellular fluid volume near to normal is often necessary for hypertension treatment in this population, but it may also help prevent progressive cardiovascular and kidney damage. Although powerful diuretics can often accomplish this goal, this often comes at a cost of competing adverse effects. An approach to reduce extracellular fluid volume while avoiding adverse effects, therefore, requires a nuanced yet aggressive therapeutic approach. PMID- 29031364 TI - Chapter 2 Squamous Cell Carcinoma of the Head and Neck-Imaging Evaluation of Regional Lymph Nodes and Implications for Management. AB - The presence of cervical lymph node metastases is a major prognostic factor in squamous cell carcinoma of the head and neck. The presence of a solitary ipsilateral metastatic lymph node reduces expected survival by almost 50%, and the presence of regional metastatic nodes at the time of presentation is the strongest predictor of recurrence or the development of distant metastases or both. Therefore, accurate identification of metastatic cervical lymph nodes is essential for staging and treatment planning. Pretreatment imaging is important for identifying clinically occult pathologic nodes as well as delineating nodal size and morphologic characteristics used in staging. The role of imaging and its implications for management are reviewed, with emphasis on the traditional modalities and imaging criteria, including evaluation for extranodal extension. PMID- 29031365 TI - Chapter 3 The Role of PET/CT in Squamous Cell Carcinoma of the Head and Neck. AB - Head and neck squamous cell carcinoma is an important cause of cancer morbidity worldwide and has been stratified into human papillomavirus-related and human papillomavirus-unrelated subgroups that affect prognosis and now staging. Conventional anatomical imaging methods are suboptimal for the detection of regional and distant metastases that are important prognosticators associated with poor outcomes. Functional imaging with (F18)-fluorodeoxyglucose-positron emission tomography/computed tomography (PET/CT) is a useful tool in the management of head and neck squamous cell carcinoma, providing complementary physiological and anatomical information. In this article, optimal PET/CT technique will be reviewed and the pretreatment and posttreatment applications of PET/CT will be described. A simplified approach to imaging interpretation, including review of pearls and pitfalls will be discussed. An initial framework for follow-up evaluation will be provided. PMID- 29031366 TI - Chapter 4 Thyroid Malignancy: Staging and Restaging. AB - Determining the extent of disease is necessary for guiding the management of thyroid carcinomas. Diagnostic imaging, including ultrasound, computed tomography, magnetic resonance imaging, and nuclear medicine scans, plays an essential role in staging and restaging of thyroid carcinomas. This article reviews the approaches and imaging findings for evaluating the primary tumor, regional lymph node metastases, and distant metastases. In addition, potential pitfalls are discussed and depicted. PMID- 29031367 TI - Chapter 5 Ultrasound Characteristics of Benign vs Malignant Cervical Lymph Nodes. AB - With approximately 800 lymph nodes in the body, and more than one-third found within the head and neck, lymph nodes are a common site for neck pathology. Differentiation between benign and malignant lymph nodes is critical in accurate prognosis; similarly, treatment hinges on accurate identification of the etiology of the pathologic process. Key gray-scale and color Doppler ultrasound criteria can help accurately distinguish between benign and malignant lymph nodes. PMID- 29031368 TI - Chapter 6 Non-Squamous Cell Causes of Cervical Lymphadenopathy. AB - Cervical lymphadenopathy is a common indication for imaging evaluation of the neck. Besides metastatic squamous cell carcinoma of the head and neck, cervical lymphadenopathy can be due to many causes, with simple reactive lymphadenopathy on one end of the spectrum and malignant lymphadenopathy due to a distant infraclavicular primary, on the other end. A systematic approach to the cause of cervical lymphadenopathy, which includes pattern of lymph node enlargement, lymph node characteristics, systemic symptoms, and extranodal abnormalities, can be very useful in arriving at the correct diagnosis. In this article, various patterns of cervical lymphadenopathy due to non-squamous cell causes are discussed. PMID- 29031369 TI - Chapter 7 Image-Guided Fine-Needle Aspiration and Core Needle Biopsy of Neck Lymph Nodes: Techniques, Pearls, and Pitfalls. AB - Image-guided percutaneous biopsy of cervical lymph nodes is a minimally invasive method performed for the characterization of abnormal lymph nodes, staging, and for the detection of regional tumor recurrence. When performed with proper technique and by a skilled proceduralist, this technique offers a very high diagnostic yield and can potentially save the patient from more invasive procedures. Its diagnostic role in different disease processes and the variations in technique as well as its potential risks and pitfalls will be discussed in this article. PMID- 29031370 TI - Chapter 8 On the Horizon: Advanced Imaging Techniques to Improve Noninvasive Assessment of Cervical Lymph Nodes. AB - Conventional imaging modalities are limited in the evaluation of lymph nodes as they predominantly rely on size and morphology, which have suboptimal sensitivity and specificity for malignancy. In this review we will explore the role of "on the horizon" advanced imaging modalities that can look beyond the size and morphologic features of a cervical lymph node and explore its molecular nature and can aid in personalizing therapy rather than use the "one-size-fits-all" approach. PMID- 29031372 TI - We have come a long way, baby: "Explaining positive adaptation of immigrant youth across cultures". AB - Immigrant youth are and will continue to be a diverse and important part of Western nations. In this context, the study of immigrant youth adaptation has burgeoned. The papers of this special section represent a shift from a deficit based to a strength-based approach to immigrant youth. They focus on unpacking the immigrant paradox, often based on longitudinal, multilevel data. In this commentary, we discuss how the research findings and themes that emerge from these papers contribute to our understanding of the processes of development and acculturation, of the importance of individual differences and the role of context for immigrant youth adaptation. These studies show that we have come a long way ... but that we still have a long way to go. PMID- 29031371 TI - ASGE EndoVators Summit: Defining the role and value of endoscopic therapies in obesity management. PMID- 29031373 TI - ? PMID- 29031374 TI - [Prediabetes, definition and treatment]. AB - Prediabetes corresponds to high levels of glycaemia on an empty stomach and/or lower tolerance to glucose. It is necessary to detect and treat it in order to prevent type 2 diabetes and its long-term morbidity-mortality. Several clinical trials, based notably on modifying the patient's lifestyle, have shown that prevention is possible. Bariatric surgery could constitute a favoured treatment option in prediabetic obese patients. PMID- 29031375 TI - ? PMID- 29031376 TI - [Jihadi radicalisation, legal definitions and reference points]. AB - Since the terrorist threat has become part of daily life in France, two terms are systematically used in the public debate: radicalisation and deradicalisation. It is essential to understand exactly what these words encompass, and to know the legal framework associated with them, in order to limit all sorts of interpretations which serve to add to the confusion related to the current context. PMID- 29031377 TI - [Radicalisation and geopolitics, the pathways to violence]. AB - Although the reasons for radicalisation appear diverse, the overwhelming majority of radicalised individuals and announcements claiming responsibility for terrorist attacks make reference to the same cause: western military interventions in Muslim countries. This raises the question of the link between radicalisation and geopolitics and the need to identify the motivations and the pathway between radicalisation and violent actions. PMID- 29031378 TI - [Terrorism, youth, ideals and paranoia]. AB - Adolescence is a period of initiation during which individuals learn to free themselves from the hold of their impulses. Fanaticism prevents this process: the subject regresses into a paranoid-type sectarian and murderous way of functioning. The fanaticism of the adolescent could thereby be related to a distorted spiritual search for his or her purpose. PMID- 29031379 TI - [Mobilising caregivers to prevent radicalisation]. AB - The policy for the prevention of radicalisation is based on the mobilisation of all government departments and territorial authorities as well as the coordination of social partners. In response to this challenge, health and social sector professionals have a key role to play both in detecting and managing people in the process of becoming radicalised. PMID- 29031380 TI - [Remaining a caregiver in the face of radicalised patients]. AB - Caregivers care for patients of all cultural and religious origins. However, the current context of terrorist threat raises specific questions due to the government's appeals to help spot radicalised patients or those in the process of becoming so. These fundamental questions are related to professional secrecy and the ethics of care. PMID- 29031381 TI - [Adolescent vulnerabilities and radicalisation]. AB - Radicalisation resonates with the psychological vulnerabilities of adolescents. The ups and downs encountered as they attempt to construct their identity and their need to dominate favour the destructive nature of young people lacking a sense of filiation and belonging. An adolescent's engagement corresponds to a search for limits, with an adherence to religious values and to a group to establish self-esteem. Subjectification, authorising the adolescent to separate themselves from their parents and their values through a period of crisis must be supported. PMID- 29031382 TI - [School in the face of radicalisation]. AB - The school is a living space for children and adolescents. It is therefore the ideal place to spot worrying changes of attitude such as those which indicate radicalisation. It is also here that the fundamental knowledge and values of our French society are passed on. In this respect, schools have a key role to play in preventing what could lead young people to radical indoctrination. PMID- 29031383 TI - [Preventing radicalisation, the role of a Maison des adolescents]. AB - Maisons des adolescents (Adolescent Centres) have a key role to play in the prevention of radicalisation. The Strasbourg centre uses a secondary prevention approach with an assessment of the potential danger of the adolescent's situation, orientation towards relevant professionals where necessary, and support which is both symptomatic and which targets the vulnerabilities of the individual and the family. Faced with this new adolescent symptom, the support, designed over the long term and ideally in partnership, must be able to adapt. PMID- 29031384 TI - [The mobile telephone as a tool for resisting sectarian ideas]. AB - The 'Pocket films empathy' activity is aimed at young people at risk of dropping out of school and those in crisis, often struggling to interact and show empathy with others. It provides support led by street educators trained in the use of the mobile telephone as a tool for talking and creating. By inviting them to put images and words to their emotions and compare their points of view, it enables these young people to express their anger, to escape from the fascination for sectarian ideas and to start to create their own personal history as well as their history within their family and society as a whole. PMID- 29031385 TI - ? PMID- 29031386 TI - Impact of conjugated linoleic acid administered to rats prior and after carcinogenic agent on arachidonic and linoleic acid metabolites in serum and tumors. AB - The objective of the study was to assess the influence of conjugated linoleic acid (CLA) daily supplementation prior and after carcinogenic agent on the concentrations of eicosanoids - metabolites of arachidonic acid (15-, 12- or 5 hydroxyeicosatetraenoic acids (15-, 12-, 5-HETE), prostaglandin E2 (PGE2)) and linoleic acid (13- or 9-hydroxyoctadecadienoic acids (13-, 9-HODE)) in rat serum and 7,12-dimethylbenz[a]anthracene (DMBA)-induced tumors. Female rats were randomised into six groups, receiving 1% or 2% Bio-C.L.A or plant oil since the 37th day of life throughout the whole experiment. Some rats (50-day-old) were administered DMBA to induce tumors. Eicosanoids were analyzed with LC-MS/MS. The study indicated that CLA supplemented daily to rats prior and after carcinogen administration affected concentrations of arachidonic and linoleic acid metabolites in rat serum and induced tumors. However, ratios of eicosanoids exerting opposite activities (e.g. 12-HETE/15-HETE) appear to act as more precise factors reflecting pathological changes in an organism than individual compounds. PMID- 29031387 TI - Metabolic pathways of oleic and palmitic acid are intensified in PCOS patients with normal androgen levels. AB - CONTEXT: The aetiology and pathogenesis polycystic ovary syndrome (PCOS) remain uncertain and thus the relative studies are still crucial. OBJECTIVE: Our aim was to analyse the fatty acids profiles of the main phospholipids species in serum from women with PCOS classified into phenotypes, and to diagnose women more susceptible to the occurrence of inflammatory state. DESIGN: PCOS screening tests were performed in The Clinic of Gynecology and Urogynecology of Pomeranian Medical University in the 2014-2015 years. SETTING: The study are designed for general community and a primary care or referral center. PATIENTS: 39 patients with PCOS, diagnosed according to Rotterdam's criteria, and 14 healthy women, as a control group, participated in this study. Fatty acid profiles were investigated using gas chromatography. A total of 36 fatty acids and their derivatives were identified and quantified. MAIN OUTCOME MEASURE: Changes in fatty acids profile in plasma from women with PCOS phenotypes are not identical. RESULTS: The analyses showed lowered level of total SFA, increase in the concentration of caprylic acid and the activation of palmitic and oleic acids pathways. The level of nervonic acid was several times higher than in the control group, and the levels of behenic and tricosanoic acids were reduced. CONCLUSIONS: In both phenotypes the alternative metabolic pathways of oleic acid were activated, but they were more pronounced in women with proper level of androgens. Gamma-linolenic acid (C18:3n6) can be a factor protecting hyperandrogenic women. PMID- 29031388 TI - Postnatal RBC arachidonic and docosahexaenoic acids deficiencies are associated with higher risk of neonatal morbidities and mortality in preterm infants. AB - Arachidonic (AA) and docosahexaenoic (DHA) acids are essential for the health and development of the neonate. Red blood cell (RBC) fatty acids were analyzed in 583 very low birth weight (VLBW) infants and 274 term infants using capillary gas chromatography. VLBW infants exhibited significantly lower RBC AA (13.0 +/- 0.89 vs. 13.5 +/- 0.98) and DHA (3.77 +/- 0.60 vs. 3.80 +/- 0.62), but higher n6:n3 ratio (3.97 +/- 0.46 vs. 3.63 +/- 0.37) than term infants. In VLBW infants, DHA was lower in those born with small for gestational age (3.69 +/- 0.57 vs. 3.86 +/ 0.58) and those who suffered from neonatal sepsis (3.73 +/- 0.60 vs. 3.86 +/- 0.55). Both AA and DHA were significantly lower in infants who developed respiratory distress syndrome or intraventricular hemorrhage, and those who died during the hospital stay. VLBW infants had lower postnatal RBC AA and DHA levels than term infants did. These deficits are associated with higher risk of neonatal morbidities and mortality. PMID- 29031389 TI - Maternal n-6 and n-3 fatty acid status during pregnancy is related to infant heart rate and heart rate variability: An exploratory study. AB - Early life heart rate (HR) and heart rate variability (HRV) reflect autonomic system maturation. Intervention with n-3 long chain polyunsaturated fatty acids (LCPUFAs) during pregnancy favorably affects fetal HR and HRV, complementing previous observations for n-3 LCPUFA intervention during infancy. The relationship between maternal fatty acid status during pregnancy and infant HR/HRV has not previously been assessed. The aim of this study was to explore associations between maternal n-6 and n-3 fatty acid status during pregnancy and infant HR and HRV at 2 weeks, 4 months, and 6 months of age using linear regression models. Maternal n-3 fatty acids were inversely related to infant HR and positively related to HRV. Conversely, maternal n-6 fatty acids were positively related to infant HR and inversely related to HRV. These data build on existing literature evidencing a role for n-3 fatty acids in accelerating autonomic development and link n-6 fatty acids to HR/HRV. PMID- 29031390 TI - Effects of postnatal omega-3 fatty acid supplementation on offspring pro resolving mediators of inflammation at 6 months and 5 years of age: A double blind, randomized controlled clinical trial. AB - BACKGROUND: Resolution of inflammation is an active process involving specialised pro-resolving mediators (SPMs) generated from the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Omega-3 fatty acid supplementation during infancy may provide an intervention strategy to modify SPMs and reduce oxidative stress. This study evaluates the effect of omega-3 fatty acid supplementation in infancy on SPMs and F2-isoprostanes from 6 months to 5 years of age. METHODS: In a double-blind, placebo-controlled, parallel-group study design, 420 infants were randomized to a daily supplement of omega-3 fatty acids (280mg DHA and 110mg EPA) or olive oil (control), from birth to age 6 months. Blood was collected at birth (cord blood), 6 months, 12 months and 5 years. Plasma SPMs included 18-HEPE, E-series resolvins, 17-HDHA, D-series resolvins, 14-HDHA, 10S,17S-DiHDoHE, MaR1 and PD1. F2-isoprostanes were measured in plasma and urine, as markers of oxidative stress in vivo. RESULTS: The change in the concentration of 18-HEPE from birth to 6 months was greater in the omega-3 fatty acid group (Ptimepoint*group=0.04) with levels at 6 months significantly higher than controls (P=0.02). Other SPMs were not different between the groups at any time point. Plasma 18-HEPE concentration were associated with erythrocyte EPA concentrations after age and group adjustments (P<0.001), but not with allergic outcomes at 12 months. There were no between-group differences in plasma and urinary F2-isoprostanes at any time point. CONCLUSION: Omega-3 fatty acid supplementation from birth to 6 months of age increased SPM at 6 months but the effects were not sustained after supplementation ceased. Given that 18-HEPE is a biologically active metabolite, future studies should examine how the increase in 18-HEPE relates to potential health benefits of omega-3 fatty acid supplementation in infancy. PMID- 29031391 TI - A dose response study of the effect of prostaglandin E2 on thermal nociceptive sensitivity. AB - Inhibition of prostaglandin (PG) biosynthesis has been used to relieve pain for thousands of years. Today non-steroidal anti-inflammatory drugs (which largely inhibit PG synthesis) are widely used to treat pain. Four main types of PGs (PGD2, PGE2, PGF2 and PGI2) are synthesized from arachidonic acid during inflammation and have been demonstrated to impact nociception. PGE2 has been the most studied and utilized for its pain producing properties and has been demonstrated to increase hypersensitivity in rodent nociceptive behavioral models when applied centrally and/or peripherally. Surprisingly, there are no published reports that use withdrawal from radiant light beam (Hargreaves apparatus) to examine the dose response effect of peripherally applied PGE2 on thermal nociceptive hypersensitivity. To address this gap in the literature, we performed a dose response study examining the effect of PGE2 on thermal hypersensitivity (assessed using a Hargreaves apparatus) where rats were injected with 0.003-30MUg of PGE2, intradermally into the hindpaw. Thermal hypersensitivity was assessed by measuring withdraw latency from a radiant light beam (Hargreaves test) and our primary objective was to determine the dose of PGE2 causing the most pronounced increase in thermal hypersensitivity (i.e. lowest withdraw latency). A secondary objective was to determine the minimum dose of PGE2 required to cause statistically significant decreases in thermal withdrawal latency as compared to rats injected with vehicle. We found that rats injected with the 30MUg dose of PGE2 exhibited the most pronounced thermal nociceptive hypersensitivity though secondary analysis showed that rats injected with PGE2 doses of 0.03-30MUg had lower withdrawal latencies as compared to rats injected with vehicle. This work fills an evidence gap and provides context to guide dose selection in future rodent pain behavior studies. PMID- 29031392 TI - Effects of aspirin in combination with EPA and DHA on HDL-C cholesterol and ApoA1 exchange in individuals with type 2 diabetes mellitus. AB - BACKGROUND/SYNOPSIS: Low-dose aspirin is an effective drug for the prevention of cardiovascular disease (CVD) events but individuals with diabetes mellitus can be subject to 'aspirin resistance'. Thus, aspirin's effect in these individuals is controversial. Higher blood levels of seafood-derived omega-3 polyunsaturated fatty acids (omega3) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) also have beneficial effects in reducing risk of CVD events but few studies have examined the interaction of plasma EPA and DHA with aspirin ingestion. OBJECTIVE/PURPOSE: Our study examined the combinatory effects of EPA, DHA, and aspirin ingestion on HDL-cholesterol (HDL-C) and apoA-I exchange (shown to be associated with CVD event risk). METHODS: 30 adults with Type 2 diabetes mellitus ingested aspirin (81mg/day) for 7 consecutive days, EPA+DHA (2.6g/day) for 28 days, then both for 7 days. Plasma was collected at baseline and at 5 subsequent visits including 4h after each aspirin ingestion. Mixed model methods were used to determine HDL-C-concentrations and apoA-I exchange compared to the baseline visit values. LOWESS curves were used for non-linear analyses of outcomes to help discern change patterns, which was followed by piecewise linear functions for formal testing of curvilinear relationships. RESULTS: Significant changes (p < 0.05) compared to baseline in both HDL-C-concentrations and apoA-I exchange were present at different times. After 7 days of aspirin-only ingestion, apoA-I exchange was significantly modified by increasing levels of DHA concentration, with increased apoA-I exchange observed up until log(DHA) of 4.6 and decreased exchange thereafter (p = 0.03). These LOWESS curve effects were not observed for EPA or HDL-C (p > 0.05). Aspirin's effects on apoA-I exchange were the greatest when EPA or DHA concentrations were moderate compared to high or low. Comparison of EPA, DHA, and EPA+DHA LOWESS curves, demonstrated that the majority of the effect is due to DHA. CONCLUSION: Our results strongly suggest that plasma concentrations of EPA and DHA influence aspirin effects on lipid mediators of CVD event risk where their concentrations are most beneficial when moderate, not high or low. These effects on HDL-C cholesterol and apoA-I exchange are novel. Personalized dosing of DHA in those who take aspirin may be a beneficial option for patients with type 2 diabetes mellitus. PMID- 29031393 TI - Cytokine distribution in mothers and breastfed children after omega-3 LCPUFAs supplementation during the last trimester of pregnancy and the lactation period: A randomized, controlled trial. AB - OBJECTIVE: To determine whether maternal diet supplementation with omega-3 long chain polyunsaturated fatty acids (omega-3 LC-PUFAs) during the last trimester of pregnancy and the breastfeeding period influences the levels of inflammatory cytokines in mother and infants. MATERIAL AND METHOD: This registered, double blind randomized study included 46 pregnant women, who were randomly allocated to either an experimental group receiving 400mL/day of a fish oil-enriched dairy drink [320mg docosahexaenoic acid (DHA) + 72mg eicoapentaenoic acid] (FO group, n = 24) or to a control group receiving 400mL/day of a non-supplemented dairy drink (CT group, n = 22), from week 28 of pregnancy until the fourth month of lactation. During the study, maternal dietary patterns were monitored by a nutritionist, who encouraged compliance with current recommendations of fatty acids intake. DHA concentrations and cytokine levels (GM-CSF, IL-2, IL-4, IL-6, IL-10, INF-gamma and TNF-alpha) were measured in maternal plasma at the moment of recruitment and in maternal (n = 46) and infant (n = 46) plasma at birth and 2.5 months after birth. RESULTS: Maternal plasmatic IL-4 levels were higher in FO than in CT subjects (p = 0.009). Additionally, a tendency was observed to higher IL-10 and IL-2 in the FO group. Plasmatic IL-6 however, was higher in CT mothers (p = 0.001). TNF-alpha was higher in CT infants at birth and 2.5 months after birth (p = 0.005). An analysis of possible relationships between DHA and the concentrations of different cytokines revealed negative correlation between maternal plasmatic IL-6 and DHA (higher plasmatic DHA corresponded to lower IL 6). CONCLUSIONS: Maternal dietary omega-3 LC-PUFAs supplementation during critical periods like pregnancy, lactation and early newborn development may influence the levels of certain inflammatory cytokines, reducing pro-inflammatory cytokines and promoting an anti-inflammatory "environment". PMID- 29031394 TI - The role of cysteinyl leukotrienes and their receptors in refractory nasal polyps. AB - Leukotriene signaling is essential in many diseases, including asthma, allergic rhinitis, atherosclerosis and inflammatory bowel disease. Nevertheless, the expression of cysteinyl leukotrienes (CysLTs) and its receptors (CYSLTRs) in different types of nasal polyps (NPs), and the role of their antagonist in the treatment of refractory chronic rhinosinusitis with nasal polyps (CRSwNP) are not well understood. The following study investigates the expression of CysLTs and CYSLTRs in different types of NPs, as well as the role of leukotriene receptor antagonist (montelukast) in refractory NPs. Our data showed that CysLTs and CYSLTRs were significantly elevated in CRSwNP group (p < 0.05), particularly in IL-5+NP patients, compared to patients with chronic rhinosinusitis but without NPs (CRSsNP) and the control group. Furthermore, montelukast have shown the ability to inhibit the expression of MUC5AC, TSLP, IL-4, IL-5, IL-13, and TGF beta in NP explants after treatment with Staphylococcal Enterotoxins B (SEB). In addition, the patients treated by additional montelukast have better outcomes compared to those with INCS only. To conclude, our results demonstrate that the inhibition of CysLTs signaling by montelukast decreases the expression of cytokines and mucin in polyp explants, and in turn promotes the recovery in patients with refractory CRSwNP. PMID- 29031395 TI - Habitual dietary intake of fatty acids are associated with leptin gene expression in subcutaneous and visceral adipose tissue of patients without diabetes. AB - The purpose of the study was to investigate the association of leptin gene expression in visceral and subcutaneous adipose tissues with habitual fatty acid intake and its subtypes in adults. Visceral and subcutaneous adipose tissues were gathered from 97 participants aged >= 20, who had undergone elective abdominal surgery. Dietary fatty acid intakes including total fatty acids (TFA), saturated fatty acid (SFA), monounsaturated fatty acids (MUFA), polyunsaturated fatty acids (PUFA), n-3, n-6, and n-9 fatty acids were collected using a valid and reliable food-frequency questionnaire (FFQ). The leptin gene expression in visceral and subcutaneous adipose tissues was measured by Real-Time PCR. After controlling for body mass index (BMI) and insulin, energy-adjusted dietary intake of SFA was positively and MUFA and n-3 fatty acids were negatively associated with subcutaneous and visceral adipose tissues leptin gene expression. Besides, a significant negative association of PUFA, n-6, and n-9 fatty acids with leptin mRNA from visceral adipose tissue were observed. In order to better interpretations of the results, the participants were allocated two groups including non-obese (BMI < 30kg/m2) and obese subjects (BMI >= 30kg/m2). Among non-obese participants, the SFA had positive and PUFA had negative association with leptin gene expression in both adipose tissues. Furthermore, in obese participants, n-3, n-6, and n-9 fatty acids had a negative association with visceral leptin gene expression. Habitual intake of SFA, MUFA, and n-3 fatty acids were associated with leptin gene expression in visceral and subcutaneous adipose tissues, suggesting an important role of quality and quantity of fatty acids intake in adipose tissue to regulate leptin expression. PMID- 29031396 TI - Supplementing dams with both arachidonic and docosahexaenoic acid has beneficial effects on growth and immune development. AB - Omega-3 long-chain polyunsaturated fatty acids (LCPUFAS) modulate immune cells in vitro and in vivo. This study investigated the effects of enriching the maternal diet with the n-6 and n-3 LCPUFAs, arachidonic (20:4n-6, 0.6%wt ARA) and docosahexaenoic acid (22:6n-3, 0.32%wt DHA), or 1:1 and 2:1 ratios (ARA: DHA) on total lipids in milk, total lipids, and immunophenotypes in plasma, lymph nodes, and spleen from isolated immune cells from 28d old pups. From day 15 of gestation to day 3 pp, Sprague-Dawley dams were fed a commercial chow. On day 3 pp litters were culled and pups (4 males and 2 females) randomly cross-fostered to dams who were randomized to one of the 5 experimental diets resulting in 20 male and 10 female pups/diet group. Dams fed ARA or ARA: DHA had 28-36% more 20:4n-6 in milk and feeding DHA or ARA: DHA doubled 22:6n-3 in milk lipids (P<0.05). Feeding 1:1 or 2:1 ARA: DHA resulted in greater pup weight at weaning (P<0.05). Compared to the control pups, ARA + DHA fed pups had a lower proportion of splenic CD45RA+ lymphocytes. In summary, postpartum supplementation with a combination of ARA + DHA, compared to ARA or DHA alone, resulted in a higher content of ARA and DHA in dam's milk and tissues and had positive effects on growth, accompanied by evidence of progression toward a mature immune phenotype, and suggests a need for ARA when DHA is supplemented in the early diet. Additional investigations are needed of ARA immunomodulation to better understand and estimate nutritional requirements for LCPUFAs during early development. PMID- 29031397 TI - Modulation of the biomarkers of inflammation and oxidative stress by ruminant trans fatty acids and dairy proteins in vascular endothelial cells (HUVEC). AB - This study aimed to determine whether dairy macronutrients alter markers of inflammation and oxidative stress in endothelial cells. Human endothelial cells (HUVEC) were treated with ruminant trans fatty acids (rTFA), either trans vaccenic acid (tVA) or trans-palmitoleic acid (tPA), whey protein hydrolysate, leucine or combinations of rTFA and dairy protein compounds. Industrial TFA elaidic acid (EA) was also investigated and compared with rTFA. Inflammatory prostaglandins (PG) and F2-isoprostanes (F2-isoP) isomers, markers of oxidative stress, were assessed in cell supernatants by LC-MS/MS. Both tVA and tPA, as well as whey protein hydrolysate, decreased TNFalpha-induced PG excretion. Combinations of rTFA and dairy protein compounds decreased inflammation to a similar extent than rTFA alone. EA increased class VI F2-isoP isomers, whereas tVA mostly raised class III isomers. In summary, rTFA decreased inflammatory markers and increased oxidative stress markers in endothelial cells. Combinations of rTFA with whey proteins or leucine showed no additive effect. PMID- 29031398 TI - Polyunsaturated fatty acid levels at birth and child-to-adult growth: Results from the MEFAB cohort. AB - BACKGROUND: Prenatal exposure to polyunsaturated fatty acids (PUFAs) may influence childhood growth. However, available evidence mostly derived from short term studies is inconsistent. OBJECTIVE: To assess whether fetal PUFA exposure is associated with height and body mass index (BMI), a common measure of adiposity, from 6 months to 23 years of age. METHODS: In the MEFAB cohort, we assessed cord blood phospholipid n-3 and n-6 PUFA levels, reflecting fetal exposure in late pregnancy. For 250 (45.2% females) participants, we collected a total of 1770 (n= 802 for females) repeated growth measurements from infancy to young adulthood. We examined sex-specific associations of PUFAs with height and BMI at different developmental ages (infant: 6 months; toddler: 2 years; pre-schooler: 4 years; school-aged child: 7 years; adolescent: 12 years; and young adult: 23 years) using fractional polynomial mixed models adjusted for important covariates. RESULTS: Higher n-3 PUFA levels were associated with higher infant length in males (beta= 0.44cm [95% CI: 0.07, 0.82] per SD increase), whereas, for females, higher n-6 PUFA concentrations were associated with lower length in infancy (beta= -0.69cm [95% CI: -1.08, -0.30] per SD increase). A higher ratio of n-3 to n-6 PUFAs was associated with higher infant length in both sexes (beta= 0.40cm [95% CI: 0.01, 0.78] and 0.42cm [95% CI: 0.05, 0.79] per unit increase for males and females, respectively). These associations were not detectable later in childhood and young adulthood. No associations with BMI were found at any time point examined. CONCLUSIONS: Our findings suggest a small sex-specific influence of PUFA status at birth on length in infancy, but this does not persist in later life up to young adulthood. PUFA status at birth does not seem to affect BMI from infancy till young adulthood. PMID- 29031399 TI - Ozone exposure effect on systemic prostaglandin F2alpha in rat plasma and urine may not reveal pulmonary damage through inflammation. AB - The acute ozone induced lung injury model has been widely used to explore injury and repair processes induced by oxidant overload. The current study evaluated acute ozone exposure effects on prostaglandin F2alpha (PGF2alpha) in male Fischer rat plasma and urine with the hypothesis that ozone may induce an inflammatory response in the body that can be measured by the induction of PGF2alpha. That might then lead to the identification of potential marker for acute lung injury through systemic inflammation. The time and dose-dependent effects of ozone exposure on the plasma and urinary levels of a major PGF2alpha metabolite15-keto dihydro-PGF2alpha were determined using a radioimmunoassay. No statistically significant differences in the PGF2alpha metabolite were found between the control and the experimental groups at either ozone exposure dose (2ppm and 5ppm) or any time point (2h, 7h and 16h) post exposure for plasma and at 7 different post exposure time points (between 2 and 80h) for urine. It is concluded that acute ozone exposure does not cause changes in plasma and urinary PGF2alpha, and therefore their measurement in plasma and urine may not be used to reveal pulmonary inflammation and damage by ozone. PMID- 29031400 TI - Neither linoleic acid nor arachidonic acid promote white adipose tissue inflammation in Fads2-/- mice fed low fat diets. AB - Dietary n-6 polyunsaturated fatty acids (PUFA) are widely perceived to promote inflammation and contribute to the development of chronic diseases. This dogma has been recently questioned due to evidence that n-6 PUFA, specifically linoleic acid (LA, 18:2n-6) and arachidonic acid (AA, 20:4n-6), do not appear to activate inflammatory signalling pathways when consumed in moderate amounts. However, delineating the independent roles of different dietary n-6 PUFA in vivo is challenging because LA is continuously converted into AA in a pathway regulated by the fatty acid desaturase 2 (Fads2) gene. The objective of this study was to investigate the independent roles of LA and AA on white adipose tissue (WAT) inflammatory signalling pathways using Fads2-/- mice. We hypothesized that dietary LA would not induce WAT inflammation, unless it was endogenously converted into AA. Male C57BL/6 wild-type (WT) and Fads2-/- mice were fed low-fat isocaloric diets containing either 7% corn oil w/w (CD, containing ~42% LA) or 7% ARASCO oil w/w (AD, containing ~27% AA) for 9 weeks. WAT inflammatory gene expression, protein levels, as well as phospholipid (PL) and triacylglycerol (TAG) fatty acid composition, were analyzed by RT-qPCR, western blots, and gas chromatography, respectively. Fads2-/- mice fed CD had high LA, but little-to-no GLA (18:3n-6), DGLA (20:3n-6), and AA in PLs and TAGs compared to their WT counterparts. In comparison, Fads2-/- and WT mice fed AD showed minimal differences in n-6 PUFA content in serum and WAT, despite having significantly more AA than CD-fed mice. No differences in gene expression for common inflammatory adipokines (e.g. Mcp-1, Ccl5, Tnfalpha) or key regulators of eicosanoid production (e.g. Cox-2, Alox-12, Alox-15) were detected in WAT between any of the diet and genotype groups. Furthermore, no differences in MCP-1, and total or phosphorylated STAT3 and p38 inflammatory proteins, were observed. Collectively, these results demonstrate that neither LA nor AA promote WAT inflammation when consumed as part of a low-fat diet. Therefore, the existing dogma surrounding n-6 PUFA and inflammation needs to be reconsidered. PMID- 29031401 TI - Screening of some lesser known tree-borne oilseed plants from North-East India for their oil content and major fatty acid components. AB - Forest of North-East India is rich in a variety of tree borne oilseeds and there were no serious efforts to exploit the less known oilseeds of the forest origin. Considering the vast plant wealth and with an objective to explore these untapped potentialities of oilseed resources of NE India, a research program was undertaken. The present communication is based on the investigation of seeds of 14 lesser known plant species for fats and oils. The screened plant species exhibited oil yield ranging from 4.71% to 48.43% on dry weight basis. Alseodaphne andersonii showed significant amount of tocols while Garcinia xanthochymus showed significant amount of phytosterol. Gas liquid chromatography analysis of methyl ester extracted fatty acid indicated dominant fraction of Oleic acid in 6 numbers of species, followed by Linoleic acid in 3 species, Lauric acid in 3 species, and Palmitic acid in 2 species. The majority of the species (9 species) showed higher amount of unsaturated fatty acid content in the oils which suggested that the species may serve as valuable raw materials for vegetable oil which can be explored as substitute for industrial feasibility while restshowed higher amount of saturated fatty acids which suggested that these species may serve as important industrial by-products. PMID- 29031402 TI - Associations between maternal long-chain polyunsaturated fatty acid concentrations and child cognition at 7 years of age: The MEFAB birth cohort. AB - INTRODUCTION: Concentrations of the fish fatty acids EPA and DHA are low among Dutch women of reproductive age. As the human brain incorporates high concentrations of these fatty acids in utero, particularly during third trimester of gestation, these low EPA and DHA concentrations may have adverse consequences for fetal brain development and functioning. METHODS: Analyses were conducted using longitudinal observational data of 292 mother-child pairs participating in the MEFAB cohort. Maternal AA, DHA, and EPA were determined in plasma phospholipids - obtained in three trimesters - by gas-liquid chromatography. Cognitive function was assessed at 7 years of age, using the Kaufman Assessment Battery for Children, resulting in three main outcome parameters: sequential processing (short-term memory), simultaneous processing (problem-solving skills), and the mental processing composite score. Spline regression and linear regression analyses were used to analyse the data, while adjusting for potential relevant covariates. RESULTS: Only 2% of the children performed more than one SD below the mental processing composite norm score. Children with lower test scores (<25%) were more likely to have a younger mother with a higher pre-gestational BMI, less likely to be breastfed, and more likely to be born with a lower birth weight, compared to children with higher test scores (>=25%). Fully-adjusted linear regression models did not show associations of maternal AA, DHA, or EPA status during any of the pregnancy trimesters with childhood sequential and simultaneous processing. CONCLUSION: Maternal fatty acid status during pregnancy was not associated with cognitive performance in Dutch children at age 7. PMID- 29031404 TI - Machine learning methods and systems for data-driven discovery in biomedical informatics. PMID- 29031403 TI - The role of specialized pro-resolving mediators in maternal-fetal health. AB - Infants developing in a pro-inflammatory intrauterine environment have a significant risk for severe complications after birth. It has been shown that omega-3 fatty acids reduce inflammation, and also reduce early preterm births and decrease risk of infant admission to the neonatal intensive care unit. However, the mechanism for omega-3 fatty acids exerting these effects was previously unknown. Recent evidence has shown that downstream products of polyunsaturated fatty acids called specialized pro-resolving mediators may mediate inflammatory physiology, thus playing an important role in maternal-fetal health. In this review, current knowledge relating to specialized pro-resolving mediators in pregnancy, delivery, and perinatal disease states will be summarized. PMID- 29031405 TI - Life span-resolved nanotoxicology enables identification of age-associated neuromuscular vulnerabilities in the nematode Caenorhabditis elegans. AB - At present, the majority of investigations concerning nanotoxicology in the nematode C. elegans address short-term effects. While this approach allows for the identification of uptake pathways, exposition and acute toxicity, nanoparticle-organism interactions that manifest later in the adult life of C. elegans are missed. Here we show that a microhabitat composed of liquid S-medium and live bacteria in microtiter wells prolongs C. elegans longevity and is optimally suited to monitor chronic eNP-effects over the entire life span (about 34 days) of the nematode. Silver (Ag) nanoparticles reduced C. elegans life span in concentrations >=10 MUg/mL, whereas nano ZnO and CeO2 (1-160 MUg/mL) had no effect on longevity. Monitoring of locomotion behaviors throughout the entire life span of C. elegans showed that Ag NPs accelerate the age-associated decline of swimming and increase of uncoordinated movements at concentrations of >=10 MUg/mL, whereas neuromuscular defects did not occur in response to ZnO and CeO2 NPs. By means of a fluorescing reporter worm expressing tryptophan hydroxylase 1::DsRed Ag NP-induced behavioral defects were correlated to axonal protein aggregation and neurodegeneration in single serotonergic HSN as well as sensory ADF neurons. Notably, serotonergic ADF neurons represented a sensitive target for Ag NPs in comparison to GABAergic neurons that showed no signs of degeneration under the same conditions. We conclude that due to its analogy to the jellylike boom culture of C. elegans on microbe-rich rotting plant material liquid S-medium culture in spatially confined microtiter wells represents a relevant as well as practical tool for comparative identification of age-resolved nanoparticle effects and vulnerabilities in a significant target organism. Consistent with this, specifically middle-aged nematodes showed premature neuromuscular defects after Ag NP-exposure. PMID- 29031406 TI - Prevalence of antibiotic resistance genes from effluent of coastal aquaculture, South Korea. AB - The wide use of antibiotics in aquaculture for prophylactic and therapeutic purposes can potentially lead to the prevalence of antibiotic resistance genes (ARGs). This study reports for the first time the profile of ARGs from effluents of coastal aquaculture located in South Jeolla province and Jeju Island, South Korea. Using quantitative PCR (qPCR), twenty-two ARGs encoding tetracycline resistance (tetA, tetB, tetD, tetE, tetG, tetH, tetM, tetQ, tetX, tetZ, tetBP), sulfonamide resistance (sul1, sul2), quinolone resistance (qnrD, qnrS, aac(6')-Ib cr), beta-lactams resistance (blaTEM, blaCTX, blaSHV), macrolide resistance (ermC), florfenicol resistance (floR) and multidrug resistance (oqxA) and a class 1 integrons-integrase gene (intI1) were quantified. In addition, Illumina Miseq sequencing was applied to investigate microbial community differences across fish farm effluents. Results from qPCR showed that the total number of detected ARGs ranged from 4.24 * 10-3 to 1.46 * 10-2 copies/16S rRNA gene. Among them, tetB and tetD were predominant, accounting for 74.8%-98.0% of the total ARGs. Furthermore, intI1 gene showed positive correlation with tetB, tetD, tetE, tetH, tetX, tetZ tetQ and sul1. Microbial community analysis revealed potential host bacteria for ARGs and intI1. Two genera, Vibrio and Marinomonas belonging to Gammaproteobacteria, showed significant correlation with tetB and tetD, the most dominant ARGs in all samples. Also, operational taxonomic units (OTUs)-based network analysis revealed that ten OTUs, classified into the phyla Proteobacteria, Cyanobacteria/Chloroplast, Bacteroidetes, Verrucomicrobia and an unclassified phylum, were potential hosts of tetracycline resistance genes (i.e., tetA, tetG, tetH, tetM, tetQ and tetZ). Further systematic monitoring of ARGs is warranted for risk assessment and management of antibacterial resistance from fish farm effluents. PMID- 29031407 TI - Biomass burning particles in the Brazilian Amazon region: Mutagenic effects of nitro and oxy-PAHs and assessment of health risks. AB - Emissions from burning of biomass in the Amazon region have adverse effects on the environment and human health. Herein, particulate matter (PM) emitted from biomass burning in the Amazon region during two different periods, namely intense and moderate, was investigated. This study focused on: i) organic characterization of nitro- and oxy-polycyclic aromatic hydrocarbons (PAHs); ii) assessment of the excess lifetime cancer risk (LCR); and iii) assessment of the in vitro mutagenic effects of extractable organic matter (EOM). Further, we compared the sensitivity of two mutagenicity tests: Salmonella/microsome test and cytokinesis-block micronucleus (CBMN) with human lung cells. Among the nitro PAHs, 2-nitrofluoranthene, 7-nitrobenz[a]anthracene, 1-nitropyrene, and 3 nitrofluoranthene showed the highest concentrations, while among oxy-PAHs, 2 metylanthraquinone, benz[a]anthracene-7,12-dione, and 9,10-anthraquinone were the most abundant. The LCR calculated for nitro-PAH exposure during intense biomass burning period showed a major contribution of 6-nitrochrysene to human carcinogenic risk. The EOM from intense period was more mutagenic than that from moderate period for both TA98 and YG1041 Salmonella strains. The number of revertants for YG1041 was 5-50% higher than that for TA98, and the most intense responses were obtained in the absence of metabolic activation, suggesting that nitroaromatic compounds with direct-acting frameshift mutagenic activity are contributing to the DNA damage. Treatment of cells with non-cytotoxic doses of EOM resulted in an increase in micronuclei frequencies. The minimal effective dose showed that Salmonella/microsome test was considerably more sensitive in comparison with CBMN mainly for the intense burning period samples. This was the first study to assess the mutagenicity of EOM associated with PM collected in the Amazon region using Salmonella/microsome test. The presence of compounds with mutagenic effects, particularly nitro- and oxy-PAHs, and LCR values in the range of 10-5 indicate that the population is potentially exposed to an increased risk of DNA damage, mutation, and cancer. PMID- 29031408 TI - Acute kidney injury, when to dialyze critically ill patients? PMID- 29031409 TI - A Study of the Pharmacokinetic Properties and the In Vivo Kinetics of Erythrocytes Loaded With Dexamethasone Sodium Phosphate in Healthy Volunteers. AB - The objectives of this 2-phase study were to elucidate pharmacokinetics (PK), in vivo 24-hour recovery, and red blood cell (RBC) survival properties of RBC encapsulated dexamethasone sodium phosphate (DSP) prepared using the EryDex System (EDS). The 24-hour RBC recovery and T50 survival phase studied subjects were randomized to receive autologous RBCs loaded with either 15-20 mg DSP (Group 1A) or sham saline (Group 2A). Loaded RBCs were radiolabeled with 51-Cr, and the labeled RBCs were followed over time in vivo. The PK phase evaluated dose levels of 2.5-5 mg (Group 1B) and 15-20 mg (Group 2B) DSP encapsulated in RBCs infused into healthy randomized subjects. The mean +/- SD 24-hour RBC recovery was 77.9% +/- 3.3% and 72.7% +/- 10.5% for Groups 1A and 2A, respectively. The mean +/- SD RBC life span was 84.3 +/- 8.3 days in Group 1A and 88.9 +/- 6.2 days in Group 2A. The PK phase actual DSP loading doses (mean +/- SEM) were 4.2 +/- 0.27 mg and 16.9 +/- 0.90 mg in Groups 1B and 2B, respectively. Release of dexamethasone from RBCs in vivo peaked at 1 hour, and a sustained release of dexamethasone could be detected until 35 days after the single intravenous infusion in Group 2B. The mean RBC in vivo recovery for DSP-loaded processed cells compares similarly to the 24-hour recovery of regulated RBC products intended for transfusion. There was a minimal but acceptable adverse impact on the survival of EDS-processed RBCs. DSP-loaded autologous RBCs, prepared using the EDS, delivered a sustained dose of dexamethasone in vivo. PMID- 29031411 TI - In Vivo Brain Glycine and Glutamate Concentrations in Patients With First-Episode Psychosis Measured by Echo Time-Averaged Proton Magnetic Resonance Spectroscopy at 4T. AB - BACKGROUND: Accumulating evidence suggests the involvement of abnormal glutamateric neurotransmission and N-methyl-D-aspartate receptor hypofunction in the pathophysiology of psychotic disorders. The purpose of this study was to quantify in vivo glutamate (Glu) and glycine (Gly) levels in patients with first episode psychosis as well as age-matched healthy control subjects with magnetic resonance spectroscopy (MRS). METHODS: The subjects were 46 patients with first episode psychosis (20 with a schizophrenia spectrum disorder, 26 with bipolar disorder) and 50 age-matched healthy control subjects. Glu and Gly levels were measured in vivo in the anterior cingulate cortex and posterior cingulate cortex of the subjects by using the echo time-averaged proton MRS technique at 4T (i.e., modified point resolved spectroscopy sequence: 24 echo time steps with 20-ms increments). Metabolite levels were quantified using LCModel with simulated basis sets. RESULTS: Significantly higher Glu and Gly levels were found in both the anterior cingulate cortex and posterior cingulate cortex of patients with first episode psychosis as compared with healthy control subjects. Glu and Gly levels were positively correlated in patients. Patients with a schizophrenia spectrum disorder and bipolar disorder showed similar abnormalities. CONCLUSIONS: Our findings demonstrate abnormally elevated brain Glu and Gly levels in patients with first-episode psychosis by means of echo time-averaged proton MRS at 4T. The findings implicate dysfunction of N-methyl-D-aspartate receptor and glutamatergic neurotransmission in the pathophysiology of the acute early phase of psychotic illnesses. PMID- 29031410 TI - Harnessing Gut Microbes for Mental Health: Getting From Here to There. AB - There has been an explosion of interest in the study of microorganisms inhabiting the gastrointestinal tract (gut microbiota) and their impact on host health and physiology. Accumulating data suggest that altered communication between gut microbiota and host systems could participate in disorders such as obesity, diabetes mellitus, and autoimmune disorders as well as neuropsychiatric disorders, including autism, anxiety, and major depressive disorders. The conceptual development of the microbiome-gut-brain axis has facilitated understanding of the complex and bidirectional networks between gastrointestinal microbiota and their host, highlighting potential mechanisms through which this environment influences central nervous system physiology. Communication pathways between gut microbiota and the central nervous system could include autonomic, neuroendocrine, enteric, and immune systems, with pathology resulting in disruption to neurotransmitter balance, increases in chronic inflammation, or exacerbated hypothalamic-pituitary-adrenal axis activity. However, uncertainty remains regarding the generalizability of controlled animal studies to the more multifaceted pattern of human pathophysiology, especially with regard to the therapeutic potential for neuropsychiatric health. This narrative review summarizes current understanding of gut microbial influence over physiological function, with an emphasis on neurobehavioral and neurological impairment based on growing understanding of the gut-brain axis. Experimental and clinical data regarding means of therapeutic manipulation of gut microbiota as a novel treatment option for mental health are described, and important knowledge gaps are identified and discussed. PMID- 29031413 TI - Experiences in digitizing and digitally measuring a paper-based ECG archive. AB - BACKGROUND: No established method for digitizing and digital measuring of paper electrocardiograms (ECG) exists. We describe a paper ECG digitizing and digital measuring process, and report comparability to manual measurements. METHODS: A paper ECG was recorded from 7203 health survey participants in 1978-1980. With specific software, the ECGs were digitized (ECG Trace Tool), and measured digitally (EASE). A sub-sample of 100 ECGs was selected for manual measurements. RESULTS: The measurement methods showed good agreement. The mean global (EASE) (manual) differences were 1.4ms (95% CI 0.5-2.2) for PR interval, -1.0ms (95% CI 1.5-[-0.5]) for QRS duration, and 11.6ms (95% CI 10.5-12.7) for QT interval. The mean inter-method amplitude differences of RampV5, RampV6, SampV1, TampII and TampV5 ranged from -0.03mV to 0.01mV. CONCLUSIONS: The presented paper-to-digital conversion and digital measurement process is an accurate and reliable method, enabling efficient storing and analysis of paper ECGs. PMID- 29031414 TI - The application of ultrasound elastography in the shoulder. AB - Ultrasound elastography (EUS) is a recently developed method for the assessment of tissue elasticity by applying mechanical stress and subsequently analyzing tissue displacement with ultrasound. To date, mainly two different techniques are used in clinical practice: strain (compression) EUS and shear wave EUS. However, shear wave EUS has been shown to be more examiner independent and more reliable as this technique allows a quantitative measurement of tissue elasticity. There is increasing evidence that EUS can be used to evaluate mechanical properties of musculoskeletal tissue. Thus, it might be a powerful tool to detect and to monitor pathologic processes affecting the shoulder girdle. As ultrasound is an essential clinical tool for the examination of the shoulder, this review describes the two most important EUS techniques available for clinical use, presenting the published evidence on the applications of EUS for the evaluation of pathologic processes affecting the shoulder joint. In addition, technical issues, limitations, and future perspectives of these methods for the assessment of the shoulder are outlined. PMID- 29031415 TI - Usefulness of the CRT-SCORE for Shared Decision Making in Cardiac Resynchronization Therapy in Patients With a Left Ventricular Ejection Fraction of <=35. AB - Individualized estimation of prognosis after cardiac resynchronization therapy (CRT) remains challenging. Our aim was to develop a multiparametric prognostic risk score (CRT-SCORE) that could be used for patient-specific clinical shared decision making about CRT implantation. The CRT-SCORE was derived from an ongoing CRT registry, including 1,053 consecutive patients (age 67 +/- 10 years, 76% male). Using preimplantation variables, 100 multiple imputed datasets were generated for model calibration. Based on multivariate Cox regression models, cross-validated linear prognostic scores were calculated, as well as survival fractions at 1 and 5 years. Specifically, the CRT-SCORE was calculated using atrioventricular junction ablation, age, gender, etiology, New York Heart Association class, diabetes, hemoglobin level, renal function, left bundle branch block, QRS duration, atrial fibrillation, left ventricular systolic and diastolic functions, and mitral regurgitation, and showed a good discriminative ability (areas under the curve 0.773 at 1 year and 0.748 at 5 years). During the long term follow-up (median 60 months, interquartile range 31 to 85), all-cause mortality was observed in 494 (47%) patients. Based on the distribution of the CRT-SCORE, lower- and higher-risk patient groups were identified. Estimated mean survival rates of 98% at 1 year and 92% at 5 years were observed in the lowest 5% risk group (L5 CRT-SCORE: -4.42 to -1.60), whereas the highest 5% risk group (H5 CRT-SCORE: 1.44 to 2.89) showed poor survival rates: 78% at 1 year and 22% at 5 years. In conclusion, the CRT-SCORE allows accurate prediction of 1- and 5-year survival rates after CRT using readily available and CRT-specific clinical, electrocardiographic, and echocardiographic parameters. The model may assist clinicians in counseling patients and in decision making. PMID- 29031416 TI - Zinc silicate mineral-coated scaffold improved in vitro osteogenic differentiation of equine adipose-derived mesenchymal stem cells. AB - In current study we aimed to coat the PLLA scaffold with zinc (Zn) silicate mineral nanoparticles. Then, using equine adipose-derived stem cells (ASCs) we intended to compare the osteogenic induction potency of Zn silicate mineral coated PLLA scaffold with uncoated PLLA scaffold and tissue culture plastic (TCPS). Adipose tissues were collected from 3 horses, and isolation of ASCs was achieved by enzymatic digestion. PLLA scaffold was successfully prepared using a phase separation method and coated with Zn silicate mineral nanoparticles. The coating efficiency was then characterized by scanning electron microscopy and further evaluated with the application of fourier transform infrared microscopic imaging. Viability and growth characteristics of ASCs on TCPS, uncoated and coated PLAA scaffolds were investigated by MTT assay. Alizarin Red staining was performed for determination of calcium deposition following the osteogenic induction. Furthermore, other common osteogenic markers such as alkaline phosphatase (ALP) activity, calcium content, as well as osteogenic (Runx2, ALP, osteonectin, and collagen I) marker genes were also evaluated. Our data showed that Zn silicate mineral nanoparticles was coated successfully on PLLA scaffold and such scaffold had no detrimental effect on cell growth rate as indicated by MTT assay. Moreover, ASCs that differentiated on Zn silicate mineral-coated PLLA scaffold indicated higher ALP activity, more calcium content, and higher expression of bone-related genes than that on uncoated PLLA scaffold and TCPS. Adequate proliferation rate and higher expression of osteogenic markers of stem cells, provides this scaffold as a suitable substrate to support proliferation and differentiation of ASCs in equine. PMID- 29031417 TI - [Skin pigmentation induced by meropenem and levofloxacin]. AB - BACKGROUND: Various cutaneous side-effects, including, exanthema, pruritus, urticaria and Lyell or Stevens-Johnson syndrome, have been reported with meropenem (carbapenem), a rarely-prescribed antibiotic. Levofloxacin (fluoroquinolone), a more frequently prescribed antibiotic, has similar cutaneous side-effects, as well as photosensitivity. We report a case of cutaneous hyperpigmentation induced by meropenem and levofloxacin. PATIENTS AND METHODS: A 67-year-old male was treated with meropenem (1g*4 daily), levofloxacin (500mg twice daily) and amikacin (500mg daily) for 2 weeks, followed by meropenem, levofloxacin and rifampicin (600mg twice daily) for 4 weeks for osteitis of the fifth metatarsal. Three weeks after initiation of antibiotic therapy, dark hyperpigmentation appeared on the lower limbs, predominantly on the anterior aspects of the legs. Histology revealed dark, perivascular and interstitial deposits throughout the dermis, which stained with both Fontana-Masson and Perls stains. Infrared microspectroscopy revealed meropenem in the dermis of involved skin. After withdrawal of the antibiotics, the pigmentation subsided slowly. DISCUSSION: Similar cases of cutaneous hyperpigmentation have been reported after use of minocycline. In these cases, histological examination also showed iron and/or melanin deposits within the dermis, but the nature of the causative pigment remains unclear. In our case, infrared spectroscopy enabled us to identify meropenem in the dermis. Two cases of cutaneous hyperpigmentation have been reported following use of levofloxacin, and the results of histological examination were similar. This is the first case of cutaneous hyperpigmentation induced by meropenem. PMID- 29031418 TI - Demographic and socioeconomic predictors of treatment delays, pathologic stage, and survival among patients with penile cancer: A report from the National Cancer Database. AB - OBJECTIVES: To evaluate whether socioeconomic factors affect pathologic stage, treatment delays, pathologic upstaging, and overall survival (OS) in patients with penile cancer (PC). PATIENTS AND METHODS: A total of 13,283 eligible patients diagnosed with PC from 1998 to 2012 were identified from the National Cancer Database. Socioeconomic, demographic and pathologic variables were used in multivariable regression models to identify predictors of pathologic T stage >=2, pathologic lymph node positivity, cT to pT upstaging, treatment delays, and OS. RESULTS: A 5-year OS was 61.5% with a median follow-up of 41.7 months. Pathologic T stage >=2 was identified in 3,521 patients (27.2%), 1,173 (9.2%) had >=pN1 and 388 (7.9%) experienced cT to pT upstaging. Variables associated with a higher likelihood of pathologic T stage >=2 included no insurance (OR = 1.79, P<0.001), lower higher education based on zip code (OR = 1.13, P = 0.027), black race (OR = 1.17, P = 0.046) and Hispanic ethnicity (OR = 1.66, P<0.001). Patients with Hispanic ethnicity (OR = 1.46; P<0.001) or living in nonmetropolitan areas were more likely to have >=pN1 (P = 0.001). Lack of insurance was associated with cT to pT upstaging (OR = 2.05, P = 0.001) as was living in an urban vs. metropolitan area (OR = 1.35, P = 0.031). In addition to TNM stage, black vs. white race (HR = 1.56, P<0.001), living in an urban vs. metropolitan area (hazard ratio [HR] = 1.18, P = 0.022), age (HR = 1.04, P<0.001) and Charlson score (HR = 1.49, P<0.001) were associated with lower OS. CONCLUSION: Socioeconomic variables including no insurance, lower education, race, Hispanic ethnicity, and nonmetropolitan residence were found to be poor prognostic factors. Increased educational awareness of this rare disease may help reduce delays in diagnosis, improve prognosis and ultimately prevent deaths among socioeconomically disadvantaged men with PC. PMID- 29031419 TI - Impact of surgical waiting time on survival in patients with upper tract urothelial carcinoma: A national cancer database study. AB - PURPOSE: To evaluate the impact of surgical waiting time (SWT) on the survival outcome in patients with upper tract urothelial carcinoma (UTUC). MATERIALS AND METHODS: We identified patients with nonmetastatic UTUC who underwent radical nephroureterectomy (RNU) between 2004 and 2013 in the National Cancer Database. The association between SWT and overall survival (OS) was evaluated using Cox proportional hazards regression. SWT was categorized into 6 groups: SWT <= 7 days, SWT 8 to 30 days, SWT 31 to 60 days, SWT 61 to 90 days, SWT 91 to 120 days, and SWT 121 to 180 days. Multivariable analyses were adjusted for patient, tumor, and facility-related factors. RESULTS: A total of 3,581 patients were included in the final overall cohort and 2,397 (66.9%) patients had the higher-risk disease (high-grade or >=pT2). Multivariable Cox regressions showed that patients in the groups of SWT 31 to 60 days, SWT 61 to 90 days, and SWT 91 to 120 days had similar OS compared with patients who had SWT of 8 to 30 days in the overall cohort and higher-risk cohort. Patients with SWT 121 to 180 days had worse OS (HR = 1.61, 95% CI: 1.19-2.19, P = 0.002 in the overall cohort; HR = 1.56, 95% CI: 1.11-2.20, P = 0.010 in the higher-risk cohort). CONCLUSIONS: Increased SWT from diagnosis to RNU appears to be not associated with worse OS within 120 days after the diagnosis of UTUC but SWT>120 days may be associated with worsened survival. These findings might have important implications for trial design in the evaluation of neoadjuvant chemotherapy for UTUC and future clinical practice. PMID- 29031420 TI - Concordance between patient-reported and physician-reported sexual function after radical prostatectomy. AB - PURPOSE: Accurately tracking health-related quality-of-life after radical prostatectomy is critical to counseling patients and improving technique. Physicians consistently overestimate functional recovery. We measured concordance between surgeon-assessed and patient-reported outcomes and evaluated a novel method to provide feedback to surgeons. MATERIALS AND METHODS: Men treated with radical prostatectomy self-completed the International Index of Erectile Function 6 questionnaire at each postoperative visit. Separately, physicians graded sexual function on a 5-point scale. International Index of Erectile Function -6 score<22 and grade >=3 defined patient-reported and physician-assessed erectile dysfunction (ED), respectively. Feedback on concordance was given to physicians starting in May 2013 with the implementation of the Amplio feedback system. Chi square tests were used to assess agreement proportions and linear regression to evaluate changes in agreement after implementation. RESULTS: From 2009 to 2015, 3,053 men completed at least 1 postprostatectomy questionnaire and had a concurrent independent physician-reported outcome. Prior to implementation of feedback in 2013, patients and physicians were consistent as to ED 83% of the time; in 10% of cases, physicians overestimated function; in 7% of cases, physicians, but not patients reported ED. Agreement increased after implementation of feedback but this was not statistically significant, likely owing to a ceiling effect. Supporting this hypothesis, increase in agreement postfeedback was greater during late follow-up (>=12mo), where baseline agreement was lower compared to earlier follow-up. CONCLUSIONS: Agreement was higher than expected at baseline; implementation of feedback regarding discrepancies between patient-reported and physician-assessed outcomes did not further improve agreement significantly. Our observed high rate of agreement may be partly attributed to our institutional practice of systematically capturing patient reported outcomes as part of normal clinical care. PMID- 29031421 TI - TLR2 activation induced by H. pylori LPS promotes the differential expression of claudin-4, -6, -7 and -9 via either STAT3 and ERK1/2 in AGS cells. AB - Gastric carcinogenesis has been associated to H. pylori virulence factors that induce a chronic inflammation process. Lipopolysaccharides play a role in chronic inflammatory responses via TLR2- and TLR4-dependent signaling pathways. Similarly, cellular invasiveness, metastatic potential and prognosis are usually associated to claudin-4, -6, -7 and -9 expression in gastric carcinogenesis. Therefore, the aim of this study was to determine if H. pylori LPS exerts an influence on carcinogenesis-related claudin expression and if it was directly regulated through the TLR2 pathway. Human antrum gastric adenocarcinoma AGS cells exposed or not to H. pylori LPS were used. Polyclonal anti-claudin-4, -6, -7 and 9, anti-TLR2, anti-pERK1/2 as well as rabbit monoclonal anti-pNFkappaB p65 and mouse monoclonal anti-CdX2 were used. ERK1/2 inhibitor UO126 and STAT3 inhibitor Stattic were also used. Western blot, immunofluorescence and confocal experiments were performed in whole cells as well as total protein, nuclear and cell membrane fractions. The results showed that H. pylori LPS increased the expression of TLR2 in a time dependent bi-phasic manner (<12 and >12h exposure). Immunofluorescence using AGS monolayers corroborated the double phase TLR2 expression mainly on the cell membrane but a detectable signal was also determined in the cytoplasm of the cells. Activation of NFkB was downstream and depended on TLR2 expression as a statistically significant increase in pNFkB, that followed a pattern highly similar to the TLR2 expression was observed on the cell membrane fraction. The increase in TLR2 expression was accompanied by dramatically increased claudin-4 expression in cultures exposed from 30m to 8h to LPS. Increased expression of claudin-6, -7 and -9 also increases in >12h LPS exposure times. The increase in claudins expression was also dependent on NFkB activation. The results also showed an increase in pSTAT3 that followed a bi-phasic pattern that began 30min after stimulation and was compatible with the increase in TLR2 expression. The expression of the claudin-4 related CDX2 transcription factor did not followed the biphasic pattern. The results also showed that claudin-4 expression was STAT3 dependent whereas claudin-6, 7 and 9 expressions was ERK1/2 dependent. Our results suggest that H. pylori LPS induces TLR2 expression in the AGS cells, and that the longer the exposure to LPS, the greater the expression of TLR2 in the cell membrane. Consequently the expression of claudin-4, -6, -7 and -9 also increases. PMID- 29031422 TI - Modulation of alveolar macrophage innate response in proinflammatory-, pro oxidant-, and infection- models by mint extract and chemical constituents: Role of MAPKs. AB - There is a continuing need for discovering novel primary or adjunct therapeutic agents to treat inflammatory conditions and infections. Natural products have inspired the discovery of several modern therapeutics; however, there is a paucity of mechanistic information on their mode of action. This study investigated the therapeutic potential and mode of action of corn mint's (Mentha arvensis) leaf extract (ME) in alveolar macrophages (AMs) challenged with model pro-inflammatory (LPS), pro- oxidant (LPS or H2O2), and infection (Mycobacterium) agents and contribution of its dominant constituents rosmarinic acid, l-menthol, and l-menthone. LPS-induced inflammatory response in the murine AM cell line MH-S was significantly reduced in terms of pro-inflammatory cytokines (TNF-alpha, IL 1alpha) and nitric oxide (NO) when pre- or post-treated with ME. The ME pretreatment of macrophages led to a significant increase (P<=0.05) in phagocytic activity toward Mycobacterium smegmatis and a greater pathogen clearance in 24h in both ME pre-treated (P<=0.05) and post-treated cells. Significant attenuation (P<=0.01) of reactive oxygen species (ROS) production in LPS- or H2O2-treated macrophages by pretreatment with whole mint extract (ME) was accounted for in part by the mint constituents rosmarinic acid and l-menthone. Attenuation of pro inflammatory response by ME pretreatment coincided with the significant reduction in total and phosphorylated JNK1/2, decrease in total p38, and increase in phospho-ERK1/2 thereby implying a role of differential modulation of MAPKs. Taken together, the results demonstrate that corn mint leaf components cause potent anti-inflammatory, anti-oxidant, and anti-infection effects in AMs via suppression of the production of cytokines/soluble mediators and ROS and increased pathogen clearance, respectively. To our knowledge, this is the first report on the mode of action of corn mint targeting the alveolar macrophages and on the potential role of MAPKs in immunomodulation by this product. PMID- 29031423 TI - The State of Surgical Axillary Management and Adjuvant Radiotherapy for Early stage Invasive Breast Cancer in the Modern Era. AB - BACKGROUND: For clinical T1-2N0 breast cancer, sentinel lymph node biopsy (SLNB) has been shown in American College of Surgeons Oncology Group (ACOSOG) Z0011 to be sufficient for women with 1 to 2 positive sentinel lymph nodes with no added benefit for completion axillary lymph node dissection (ALND). Z0011 specified whole breast radiotherapy (RT) using standard tangential fields; however, later analysis showed variation in field design. We assessed nationwide practice patterns and examined factors associated with patients undergoing completion ALND and subsequent radiation field design. PATIENTS AND METHODS: Women with clinical T1-2N0 breast cancer who underwent breast-conserving surgery, axillary staging, and whole breast RT in 2012 to 2013 were identified in the National Cancer Database. Multivariable logistic regression modeling was used to examine axillary management and RT, adjusting for demographic and clinicopathologic factors. RESULTS: Among 83,555 patients meeting criteria, 9.3% underwent upfront ALND, 75.8% underwent SLNB only, and 14.9% underwent SLNB with completion ALND. From 2012 to 2013, upfront SLNB increased from 90.1% to 91.4% (odds ratio, 1.14; P < .001). Among 9474 patients that underwent SLNB with 1 to 2 positive sentinel nodes, 31.2% received completion ALND. Among patients with 1 to 2 positive sentinel nodes, SLNB increased from 65.8% to 72.1% from 2012 to 2013 (P < .001). For patients with 1 to 2 positive lymph nodes that underwent SLNB only, 63.4% underwent breast RT, whereas 36.6% received breast and nodal RT. CONCLUSIONS: Nationwide practice patterns of axillary management vary. Despite an increasing rate of SLNB, many patients still receive upfront and completion ALND. Furthermore, there is significant variation in RT field design, and modern treatment guidelines are warranted for this patient population. PMID- 29031424 TI - The experience and influence of social support and social dynamics on cardiovascular disease prevention in migrant Pakistani communities: A qualitative synthesis. AB - OBJECTIVE: The objective of this research was to synthesise qualitative literature about the perceived influence and experience of social support, in relation to cardiovascular disease (CVD) prevention in migrant Pakistani communities. METHODS: Articles were systematically reviewed, critically appraised, and analysed using an adapted meta-ethnography approach. RESULTS: Sixteen qualitative studies on health behaviours related to CVD prevention were included. FINDINGS: include four sub-themes under two substantive thematic areas that focus on: 1) family dynamics and 2) community dynamics influenced by discrimination. For members of the Pakistani community, gendered family dynamics and discrimination from outside and within community networks influenced behaviour change. CONCLUSION: The authors of the synthesis developed multi layered, contextualised interpretations of the care needs of an established multi generational community. Future qualitative studies taking an intersectional approach to interpreting the role of social networks in migrant communities should take into account gender, identity, culture and faith. PRACTICE IMPLICATIONS: Health care providers should focus on cultural awareness and sensitivity during consultations. In particular, general practitioners can benefit from the insight they gain from patient experiences, allowing for more appropriate recommendations. PMID- 29031425 TI - Contents of Japanese pro- and anti-HPV vaccination websites: A text mining analysis. AB - OBJECTIVE: In Japan, the human papillomavirus (HPV) vaccination rate has sharply fallen to nearly 0% due to sensational media reports of adverse events. Online anti-HPV-vaccination activists often warn readers of the vaccine's dangers. Here, we aimed to examine frequently appearing contents on pro- and anti-HPV vaccination websites. METHODS: We conducted online searches via two major search engines (Google Japan and Yahoo! Japan). Targeted websites were classified as "pro," "anti," or "neutral" according to their claims, with the author(s) classified as "health professionals," "mass media," or "laypersons." We then conducted a text mining analysis. RESULTS: Of the 270 sites analyzed, 16 contents were identified. The most frequently appearing contents on pro websites were vaccine side effects, preventable effect of vaccination, and cause of cervical cancer. The most frequently appearing contents on anti websites were vaccine side effects, vaccine toxicity, and girls who suffer from vaccine side effects. Main disseminators of each content according to the author's expertise were also revealed. CONCLUSION: Pro-HPV vaccination websites should supplement deficient contents and respond to frequent contents on anti-HPV websites. PRACTICE IMPLICATIONS: Effective tactics are needed to better communicate susceptibility to cervical cancer, frequency of side effects, and responses to vaccine toxicity and conspiracy theories. PMID- 29031426 TI - Measuring ventricular repolarisation dynamics from ambulatory electrocardiography as non-invasive cardiac risk indices. PMID- 29031427 TI - [Penile prosthesis implantation: Indications and outcomes]. AB - OBJECTIVE: Our aim was to present the indications and the outcomes of penile prosthesis implantation. METHODS: A literature review was performed through PubMed using the following keywords: penile implantation ; penile prosthesis; erectile dysfunction. RESULTS: Evolution of penile prosthesis devices led to get a fiable and effective treatment for men with erectile dysfunction who do not respond to less invasive therapy. Penile implant can also be useful in the treatment of Peyronie's disease, priapism and transgender surgery. Precise information related to this surgery, especially complications, permits to obtain high satisfaction scores. CONCLUSION: Penile implant is a reliable and safe solution for the management of erectile dysfunction resulting to high couple satisfaction ratings. PMID- 29031428 TI - Aortic valve replacement in small patients. AB - OBJECTIVES: Asians are smaller than Europeans and North Americans, but aortic valve replacement (AVR) in small patients has not been examined. We aimed to compare short- and mid-term outcomes of AVR between small and non-small patients. METHODS: We retrospectively divided 173 patients who underwent AVR into small (S, n = 95) and non-small (NS, n = 78) groups according to body surface area (<=1.6 in men, <=1.5 in women) and analyzed differences in baseline characteristics, procedural and post-procedural variables, and survival. RESULTS: Mean age differed significantly between the S and NS groups (71.9 +/- 11.2 vs. 66.2 +/- 9.8 years), as did the proportion of women (60.0% vs. 24.4%). Implanted valves (19.6 +/- 1.6 mm vs. 20.7 +/- 1.7 mm) were significantly smaller and more bioprosthetic valves (57.9% vs. 41.0%) were used in the S group. Effective orifice area index and the rate of moderate and severe patient-prosthesis mismatch were not significantly different. No significant intergroup differences were found in hospitalization duration, 30-day mortality, survival rates, or valve related complications. CONCLUSIONS: Small patients were older and the proportion of women was higher. The implanted aortic valves were smaller and more were biological prostheses. However, mortality rate did not differ and short- and mid-term outcomes were safe and favorable. PMID- 29031429 TI - Outbreak of group A Streptococcus emm94.0 affecting people who inject drugs in southwest England, April 2017. AB - We report an outbreak of invasive and noninvasive group A Streptococcus during April 2017 among people who inject drugs in southwest England. To date we have identified 14 cases linked to a specific town, all confirmed as group A Streptococcus emm94.0, a strain type not previously reported in the area. We have yet to identify a source for this ongoing outbreak. Actions described here may help reduce the burden of infection in vulnerable populations. PMID- 29031430 TI - Leadership line care rounds: Application of the engage, educate, execute, and evaluate improvement model for the prevention of central line-associated bloodstream infections in children with cancer. AB - To prevent central line-associated bloodstream infections (CLABSIs), leadership line care rounds (LLCRs) used the engage, educate, execute, and evaluate improvement model to audit compliance, identify barriers and opportunities, empower patients and families, and engage leadership. Findings of excellence and improvement opportunities were communicated to unit staff and managers. LLCRs contributed to compliance with CLABSI prevention interventions. PMID- 29031431 TI - Implementing an antibiotic stewardship program at a long-term acute care hospital in Detroit, Michigan. AB - BACKGROUND: The objective of the study was to assess health care providers' (HCPs) knowledge and attitude toward antimicrobial resistance (AMR) and implement an antimicrobial stewardship program (ASP) in a long-term acute care hospital (LTACH). METHODS: A questionnaire on antibiotic use and resistance was administered to HCP in an LTACH in Detroit, Michigan, between August 2011 and October 2011. Concurrently, a retrospective review of common antibiotic prescription practices and costs was conducted. Then, a tailored ASP was launched at the LTACH followed by 2-phase postimplementation assessment aiming at evaluating the impact of the ASP on antibiotic expenditure. RESULTS: Of all respondents (N = 26), 65% viewed AMR as a national problem, but only 38% perceived AMR as a problem at their facility. Most respondents were familiar with infections caused by resistant organisms such as methicillin-resistant Staphylococcus aureus, vancomycin-resistant enterococci, and extended-spectrum beta-lactamase; however, only 35% expressed confidence in treating infected patients. In the preimplementation phase, 15% of antimicrobial doses were inappropriate and 10 of 13 de-escalation opportunities were missed, resulting in additional $23,524.00 expenditure. In the first postimplementation phase, there was a 42% and 58% decrease in the use of daptomycin and tigecycline, respectively, resulting in $55,000 savings. In the second postintervention phase, total antimicrobial cost for treating a cohort of 28 patients in 2016 and 2017 was $26,837.85 and $22,397.15, respectively. CONCLUSIONS: Introduction of an ASP in an LTACH improves antimicrobial prescribing practices, reduces cost, and is sustainable. PMID- 29031432 TI - Discontinuing contact precautions for multidrug-resistant organisms: A systematic literature review and meta-analysis. AB - BACKGROUND: Several single-center studies have suggested that eliminating contact precautions (CPs) for methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE) control in nonoutbreak settings has no impact on infection rates. We performed a systematic literature review and meta analysis on the impact of discontinuing contact precautions in the acute care setting. METHODS: We searched PubMed, CINAHL, Cochrane Database of Systematic Reviews, Database of Abstracts of Reviews of Effects, and Embase through December 2016 for studies evaluating discontinuation of contact precautions for multidrug resistant organisms. We used random-effect models to obtain pooled risk ratio estimates. Heterogeneity was evaluated with I2 estimation and the Cochran Q statistic. Pooled risk ratios for MRSA and VRE were assessed separately. RESULTS: Fourteen studies met inclusion criteria and were included in the final review. Six studies discontinued CPs for both MRSA and VRE, 3 for MRSA only, 2 for VRE only, 2 for extended-spectrum beta-lactamase-producing Escherichia coli, and 1 for Clostridium difficile infection. When study results were pooled, there was a trend toward reduction of MRSA infection after discontinuing CPs (pooled risk ratio, 0.84; 95% confidence interval, 0.70-1.02; P = .07) and a statistically significant reduction in VRE infection (pooled risk ratio, 0.82; 95% confidence interval, 0.72-0.94; P = .005). CONCLUSIONS: Discontinuation of CPs for MRSA and VRE has not been associated with increased infection rates. PMID- 29031433 TI - Risk factors for health care-associated infection in hospitalized adults: Systematic review and meta-analysis. AB - BACKGROUND: Health care-associated infections (HAIs) are a public health problem that increase health care costs. This article aimed to systematically review the literature and meta-analyze studies investigating risk factors (RFs) independently associated with HAIs in hospitalized adults. METHODS: Electronic databases (MEDLINE, Embase, and LILACS) were searched to identify studies from 2009-2016. Pooled risk ratios (RRs) or odds ratios (ORs) or mean differences (MDs) and 95% confidence intervals (CIs) were calculated and compared across the groups. This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. RESULTS: Of 867 studies, 65 met the criteria for review, and the data of 18 were summarized in the meta-analysis. The major RFs independently associated with HAIs were diabetes mellitus (RR, 1.76; 95% CI, 1.27 2.44), immunosuppression (RR, 1.24; 95% CI, 1.04-1.47), body temperature (MD, 0.62; 95% CI, 0.41-0.83), surgery time in minutes (MD, 34.53; 95% CI, 22.17 46.89), reoperation (RR, 7.94; 95% CI, 5.49-11.48), cephalosporin exposure (RR, 1.77; 95% CI, 1.30-2.42), days of exposure to central venous catheter (MD, 5.20; 95% CI, 4.91-5.48), intensive care unit (ICU) admission (RR, 3.76; 95% CI, 1.79 7.92), ICU stay in days (MD, 21.30; 95% CI, 19.81-22.79), and mechanical ventilation (OR, 12.95; 95% CI, 6.28-26.73). CONCLUSIONS: Identifying RFs that contribute to develop HAIs may support the implementation of strategies for their prevention, therefore maximizing patient safety. PMID- 29031434 TI - Validation of an electronic tool for flagging surgical site infections based on clinical practice patterns for triaging surveillance: Operational successes and barriers. AB - BACKGROUND: Surveillance is an effective strategy for reducing surgical site infections (SSIs); however, current identification methods are resource intensive. Therefore, we sought to validate an electronic SSI triaging tool for detection of probable infections and identify operational barriers and challenges. METHODS: A retrospective cohort study was conducted among all Veterans Affairs Surgical Quality Improvement Program (VASQIP)-reviewed surgeries at 2 Veterans Affairs medical centers from October 1, 2011-September 30, 2014. During the postoperative period, clinical and administrative variables associated with SSI (relevant microbiology order, antibiotic order, radiology order, and administrative codes) were extracted from the electronic medical record and used to score the probability (high, intermediate, and low) that an SSI occurred. VASQIP manual chart review was used as the gold standard of comparison. RESULTS: VASQIP manual review identified 118 SSIs out of 3,700 surgeries (3.2%). There were 2,041, 1,428, and 231 surgeries that met criteria for low, intermediate, and high probability for SSI. The tool's area under the curve was 0.86 (95% confidence interval, 0.82-0.89). The sensitivity among low-probability surgeries was 92.4%, and the specificity among high-probability surgeries was 95.1%. CONCLUSIONS: The electronic SSI tool has the potential to be used for triaging VASQIP surveillance toward the high-probability surgeries and to avoid manual review of surgeries with low probability of SSI. PMID- 29031435 TI - Description of a restriction program for gram-positive antimicrobial agents at an academic medical center. AB - This report examines the effectiveness of antimicrobial restriction at 1 tertiary care health care system by analyzing the consumption of restricted versus nonrestricted gram-positive agents over time for medical versus surgical units. Significant reductions in restricted antibiotic use were detected in 57% of medical units versus none of the surgical units. There were no significant reductions in nonrestricted antibiotic use. We think looking at antibiotic consumption by service line provides opportunities for targeted antibiotic restriction program refinement. PMID- 29031436 TI - Detection of concentric left ventricular wall hypertrophy by contrast-enhanced non-electrocardiogram-gated chest computed tomography. AB - BACKGROUND: No established measure of concentric left ventricular wall hypertrophy (cLVH) on routine computed tomography (CT) of the adult chest currently exists. The objective of this study was to identify and test linear measures for the detection of cLVH using transthoracic echocardiography (TTE) as the reference standard. METHODS: Contrast-enhanced non-electrocardiogram-gated chest CTs acquired within two weeks of TTE were retrospectively evaluated. Two radiologists independently made trans-axial measurements in the proximal half of the left ventricle at its approximate widest internal diameter: maximum septal thickness (sept), maximum lateral wall thickness (lat), and inner (Id) and outer (Od) wall-wall diameters at the level of greatest combined myocardial thickness. The sum of sept and lat, hereafter Thmax, and modified cross-sectional area (Amod = Od2 - Id2) were calculated. Sept, lat, Thmax, and Amod were evaluated by receiver operating characteristic (ROC) curves using TTE as the reference standard. Thresholds were optimized for specificity and applied to a validation cohort. Inter-rater agreement was assessed by a simple unweighted Kappa statistic (kappa). RESULTS: Sept and Amod were selected based on areas under the ROC curves of 0.75 and 0.71, respectively, using 100 CTs. Thresholds of 1.6 cm and 30 cm2, respectively, showed similar specificities of 98% with sensitivities of 27% and 30%, respectively. Applied to a validation cohort of 100 CTs, sept had higher combined positive predictive value (75%), inter-rater agreement (kappa = 0.58), specificity (91%), and sensitivity (24%). CONCLUSION: Linear measures demonstrate utility in the diagnosis of cLVH on routine contrast-enhanced chest CT. PMID- 29031438 TI - Photocatalysis: Preface. PMID- 29031437 TI - Incidental CT finding of myocardial calcifications following severe septic shock. PMID- 29031439 TI - Photoelectrocatalytic reduction of CO2 to methanol over a photosystem II-enhanced Cu foam/Si-nanowire system. AB - A solar-light double illumination photoelectrocatalytic cell (SLDIPEC) was fabricated for autonomous CO2 reduction and O2 evolution with the aid of photosystem II (PS-II, an efficient light-driven water-oxidized enzyme from nature) and utilized in a photoanode solution. The proposed SLPEC system was composed of Cu foam as the photoanode and p-Si nanowires (Si-NW) as the photocathode. Under solar irradiation, it exhibited a super-photoelectrocatalytic performance for CO2 conversion to methanol, with a high evolution rate (41.94mmol/hr), owing to fast electron transfer from PS-II to Cu foam. Electrons were subsequently trapped by Si-NW through an external circuit via bias voltage (0.5V), and a suitable conduction band potential of Si (-0.6eV) allowed CO2 to be easily reduced to CH3OH at the photocathode. The constructed Z-scheme between Cu foam and Si-NW can allow the SLDIPEC system to reduce CO2 (8.03mmol/hr) in the absence of bias voltage. This approach makes full use of the energy band mismatch of the photoanode and photocathode to design a highly efficient device for solving environmental issues and producing clean energy. PMID- 29031440 TI - Removal of antibiotics in a parallel-plate thin-film-photocatalytic reactor: Process modeling and evolution of transformation by-products and toxicity. AB - Photocatalytic degradation of sulfamethoxazole (SMX) antibiotic has been studied under recycling batch and homogeneous flow conditions in a thin-film coated immobilized system namely parallel-plate (PPL) reactor. Experimentally designed, statistically evaluated with a factorial design (FD) approach with intent to provide a mathematical model takes into account the parameters influencing process performance. Initial antibiotic concentration, UV energy level, irradiated surface area, water matrix (ultrapure and secondary treated wastewater) and time, were defined as model parameters. A full of 25 experimental design was consisted of 32 random experiments. PPL reactor test experiments were carried out in order to set boundary levels for hydraulic, volumetric and defined defined process parameters. TTIP based thin-film with polyethylene glycol+TiO2 additives were fabricated according to pre-described methodology. Antibiotic degradation was monitored by High Performance Liquid Chromatography analysis while the degradation products were specified by LC-TOF-MS analysis. Acute toxicity of untreated and treated SMX solutions was tested by standard Daphnia magna method. Based on the obtained mathematical model, the response of the immobilized PC system is described with a polynomial equation. The statistically significant positive effects are initial SMX concentration, process time and the combined effect of both, while combined effect of water matrix and irradiated surface area displays an adverse effect on the rate of antibiotic degradation by photocatalytic oxidation. Process efficiency and the validity of the acquired mathematical model was also verified for levofloxacin and cefaclor antibiotics. Immobilized PC degradation in PPL reactor configuration was found capable of providing reduced effluent toxicity by simultaneous degradation of SMX parent compound and TBPs. PMID- 29031441 TI - Preparation of Ti species coating hydrotalcite by chemical vapor deposition for photodegradation of azo dye. AB - TiO2 in anatase crystal phase is a very effective catalyst in the photocatalytic oxidation of organic compounds in water. To improve its photocatalytic activity, the Ti-coating MgAl hydrotalcite (Ti-MgAl-LDH) was prepared by chemical vapor deposition (CVD) method. Response surface method (RSM) was employed to evaluate the effect of Ti species coating parameters on the photocatalytic activity, which was found to be affected by the furnace temperature, N2 flow rate and influx time of precursor gas. Application of RSM successfully increased the photocatalytic efficiency of the Ti-MgAl-LDH in methylene blue photodegradation under UV irradiation, leading to improved economy of the process. According to the results from X-ray diffraction, scanning electron microscopy, Brunner-Emmet-Teller and Barrett-Joyner-Hallender, thermogravimetric and differential thermal analysis, UV vis diffuse reflectance spectra analyses, the Ti species (TiO2 or/and Ti4+) were successfully coated on the MgAl-LDH matrix. The Ti species on the surface of the Ti-MgAl-LDH lead to a higher photocatalytic performance than commercial TiO2-P25. The results suggested that CVD method provided a new approach for the industrial preparation of Ti-coating MgAl-LDH material with good photocatalytic performances. PMID- 29031442 TI - Preparation and photocatalytic properties of porous C and N co-doped TiO2 deposited on brick by a fast, one-step microwave irradiation method. AB - A one-step microwave irradiation method was used to deposit carbon and nitrogen co-doped TiO2 ((C, N)-TiO2) on commercial brick ((C, N)-TiO2/brick). The as prepared samples were characterized by X-ray diffraction, ultraviolet-visible (UV vis) diffuse reflectance spectroscopy, photoluminescence spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy (SEM). A selective technique was also used to investigate the concentration of hydroxyl radicals during UV-vis irradiation of the Methyl Orange solution with the as-prepared samples. The C and N dopants enhanced visible light absorption and provided a longer lifetime for the photo-generated electron-hole pairs. The SEM images showed that the as-prepared sample is porous. The dark adsorption and photodegradation test for (C, N)-TiO2/brick showed good photodegradation and good recyclability. The best photodegradation rate was 94% after 2hr. The maximum degradation rate was maintained even after the 6th cycle. The good photocatalytic properties are attributed to the enhanced visible light absorption, enhanced pollutant adsorption arising from the porous structure of the (C, N)-TiO2 thin film, and longer lifetime of the photo-generated electron-hole pairs. (C, N) TiO2/brick should have potential commercial applications in photodegradation processes because of its low cost, good photodegradation, and excellent recyclability. PMID- 29031443 TI - TiO2-PANI/Cork composite: A new floating photocatalyst for the treatment of organic pollutants under sunlight irradiation. AB - A novel photocatalyst based on TiO2-PANI composite supported on small pieces of cork has been reported. It was prepared by simple impregnation method of the polyaniline (PANI)-modified TiO2 on cork. The TiO2-PANI/Cork catalyst shows the unique feature of floating on the water surface. The as-synthesized catalyst was characterized by X-ray diffraction (XRD), scanning electron micrograph (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), UV-vis diffuse reflectance spectra (UV vis DRS) and the Brunauer-Emmett-Teller (BET) surface area analysis. Characterization suggested the formation of anatase highly dispersed on the cork surface. The prepared floating photocatalyst showed high efficiency for the degradation of methyl orange dye and other organic pollutants under solar irradiation and constrained conditions, i.e., no-stirring and no-oxygenation. The TiO2-PANI/Cork floating photocatalyst can be reused for at least four consecutive times without significant decrease of the degradation efficiency. PMID- 29031444 TI - In-situ synthesis of TiO2 rutile/anatase heterostructure by DC magnetron sputtering at room temperature and thickness effect of outermost rutile layer on photocatalysis. AB - TiO2 rutile/anatase heterostructure thin films with varying rutile thickness have been in-situ synthesized via DC magnetron sputtering with Ar gas at room temperature. The crystal texture, surface morphology, energy gap and optical properties of the films have been investigated by X-ray diffraction meter, grazing incidence X-ray diffraction meter, Raman spectroscopy, scanning electron microscopy, and UV-visible spectrophotometer, which indicates that the rutile/anatase heterostructure films are successfully fabricated. The further degradation experiments display that the photocatalytic activity can be dramatically affected by the thickness of the outmost rutile layer and the 100nm thickness exhibits the best performance in all of the TiO2 thin films. With the increase of the outmost rutile layer, the optical band gap of TiO2 film displays a systematic decrease slightly. However, the change in photocatalytic activity does not coincide with that in the band gap. The photoresponse and electrochemical properties of the thin films have been characterized to understand the mechanism of the varied photocatalytic activity. PMID- 29031445 TI - Preparation of Ag@AgCl-doped TiO2/sepiolite and its photocatalytic mechanism under visible light. AB - A cube-like Ag@AgCl-doped TiO2/sepiolite (denoted Ag@AgCl-TiO2/sepiolite) was successfully synthesized via a novel method. X-ray diffraction, scanning electron microscopy, energy dispersion X-ray fluorescence, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and diffuse reflectance ultraviolet-visible spectroscopy were performed to determine the structure and physicochemical properties of Ag@AgCl-TiO2/sepiolite. SEM micrographs revealed that Ag@AgCl nanoparticles and TiO2 film are well deposited on the surface of tube-like sepiolite. As a result, Ag@AgCl-TiO2/sepiolite exhibits a red shift relative to TiO2/sepiolite. Photocatalytic experiments demonstrated that the dosage of catalysts plays an important role during photocatalysis. The photoelectrochemical activities of Ag@AgCl-TiO2/sepiolite and TiO2/sepiolite were also investigated. Photocurrent responses confirmed that the ability of Ag@AgCl TiO2/sepiolite to separate photo-generated electron-hole pairs is stronger than that of TiO2/sepiolite. Methylene Blue degradation is also improved under alkaline conditions and visible light irradiation because more OH is produced by visible light excitation. This excellent catalytic ability is mainly attributed to the formed Ag nanoparticles and the Schottky barrier at the Ag/TiO2 interface. Active species analysis indicated that O2- and h+ are implicated as active species in photocatalysis. Therefore, catalysts are excited to produce abundant electron-hole pairs after they absorb photons in photocatalysis. PMID- 29031446 TI - Pd-MnO2 nanoparticles/TiO2 nanotube arrays (NTAs) photo-electrodes photo catalytic properties and their ability of degrading Rhodamine B under visible light. AB - Pd-MnO2/TiO2 nanotube arrays (NTAs) photo-electrodes were successfully fabricated via anodization and electro deposition subsequently; the obtained Pd-MnO2/TiO2 NTAs photo electrodes were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and characterized accordingly. Moreover, the light harvesting and absorption properties were investigated via ultraviolet-visible diffuse reflectance spectrum (DRS); photo degradation efficiency was investigated via analyzing the photo catalytic degradation of Rhodamine B under visible illumination (xenon light). The performed analyses illustrated that Pd-MnO2 codoped particles were successfully deposited onto the surface of the TiO2 nanotube arrays; DRS results showed significant improvement in visible light absorption which was between 400 and 700nm. Finally, the photo catalytic degradation efficiency results of the designated organic pollutant (Rhodamine B) illustrated a superior photocatalytic (PC) efficiency of approximately 95% compared to the bare TiO2 NTAs, which only exhibited a photo catalytic degradation efficiency of approximately 61%, thus it indicated the significant enhancement of the light absorption properties of fabricated photo electrodes and their yield of OH radicals. PMID- 29031447 TI - Highly efficient Zr doped-TiO2/glass fiber photocatalyst and its performance in formaldehyde removal under visible light. AB - Zr-doped-TiO2 loaded glass fiber (ZT/GF) composite photocatalysts with different Zr/Ti ratios were prepared with a sol-gel process. Zr4+ can replace Ti4+ in the TiO2 lattice, which is conducive to forming the anatase phase and reducing the calcination temperature. The glass fiber carrier was responsible for better dispersion and loading of Zr-doped-TiO2 particles, improving the applicability of the Zr-doped-TiO2. The ZT/GF photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV-vis) and Barrett Joyner-Halenda (BJH). The performance of photocatalysts with different loading was evaluated in formaldehyde degradation under visible light at room temperature. ZT/GF0.2 exhibited the highest activity, with a formaldehyde removal rate as high as 95.14% being observed, which is better than that of the photocatalyst particles alone. The stability of the catalyst was also tested, and ZT/GF exhibited excellent catalytic performance with 94.38% removal efficiency, even after seven uses. PMID- 29031448 TI - La/Ce-codoped Bi2O3 composite photocatalysts with high photocatalytic performance in removal of high concentration dye. AB - A series of La/Ce-codoped Bi2O3 composite photocatalysts were fabricated via hydrothermal-calcination process. The as-prepared products were intensively characterized by some physicochemical characterizations like N2 physical adsorption, X-ray powder diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), UV-Vis diffuse reflectance (UV-Vis DRS), Fourier transform infrared spectroscopy (FT-IR), photoelectrochemical measurements, and photoluminescence (PL) spectroscopy. The characterization results indicated that La and Ce doping induced obvious crystal phase transformation in Bi2O3, from monoclinic to tetragonal phase. La and Ce codoping also gave rise to the obvious synergetic effects, e.g., the lattice contraction of Bi2O3, the decrease of crystal size and the increase of surface area. The photocatalytic performance of the prepared catalysts was evaluated by removal of dye acid orange II with high concentration under visible light irradiation. Results showed that La/Ce-codoped Bi2O3 displayed much higher photocatalytic performance than that of bare Bi2O3, single La or Ce doped Bi2O3 samples. The superior photocatalytic activity was mainly attributed to the improved texture and surface properties and the synergistic effects of La and Ce codoping on suppressing the recombination of photo-generated electrons (e-) and holes (h+). PMID- 29031449 TI - Enhancement of photocatalytic efficiency by in situ fabrication of BiOBr/BiVO4 surface junctions. AB - Surface junctions between BiOBr and BiVO4 were synthesized. The BiOBr/BiVO4 with 1wt.% of BiOBr exhibited the highest photocatalytic activity in the degradation of RhB under visible-light irradiation. It was found that the highly efficient adsorption of RhB molecules via the electrostatic attraction between Br- and cationic N(Et)2 group played a key role for the high photocatalytic activities of BiOBr/BiVO4. This efficient adsorption promoted the N-deethylation of RhB and thus accelerated the photocatalytic degradation of RhB. Moreover, the metal-to metal charge transfer (MMCT) mechanism was proposed, which revealed the concrete path paved with Bi-O-Bi chains for the carrier migration in BiOBr/BiVO4. The interaction between photoexcited RhB* and the Bi3+ in BiVO4 provided the driving force for the migration of photo-generated carriers along the Bi-O-Bi chains. This work has not only demonstrated the important role of efficient adsorption in the photocatalytic degradation of organic contaminants, but also developed a facile strategy to improve the efficiency of photocatalysts. PMID- 29031450 TI - Selective oxidation of benzyl alcohols to benzoic acid catalyzed by eco-friendly cobalt thioporphyrazine catalyst supported on silica-coated magnetic nanospheres. AB - A novel magnetically recoverable thioporphyrazine catalyst (CoPz(S Bu)8/SiO2@Fe3O4) was prepared by immobilization of the cobalt octkis(butylthio) porphyrazine complex (CoPz(S-Bu)8) on silica-coated magnetic nanospheres (SiO2@Fe3O4). The composite CoPz(S-Bu)8/SiO2@Fe3O4 appeared to be an active catalyst in the oxidation of benzyl alcohol in aqueous solution using hydrogen peroxide (H2O2) as oxidant under Xe-lamp irradiation, with 36.4% conversion of benzyl alcohol, about 99% selectivity for benzoic acid and turnover number (TON) of 61.7 at ambient temperature. The biomimetic catalyst CoPz(S-Bu)8 was supported on the magnetic carrier SiO2@Fe3O4 so as to suspend it in aqueous solution to react with substrates, utilizing its lipophilicity. Meanwhile the CoPz(S-Bu)8 can use its unique advantages to control the selectivity of photocatalytic oxidation without the substrate being subjected to deep oxidation. The influence of various reaction parameters on the conversion rate of benzyl alcohol and selectivity of benzoic acid was investigated in detail. Moreover, photocatalytic oxidation of substituted benzyl alcohols was obtained with high conversion and excellent selectivity, specifically conversion close to 70%, selectivity close to 100% and TON of 113.6 for para-position electron-donating groups. The selectivity and eco friendliness of the biomimetic photocatalyst give it great potential for practical applications. PMID- 29031451 TI - A metal-free composite photocatalyst of graphene quantum dots deposited on red phosphorus. AB - A simple approach to enhance the photocatalytic activity of red phosphorus (P) was developed. A mechanical ball milling method was applied to reduce the size of red P and to deposit graphene quantum dots onto red P. The product was characterized by scanning electron microscopy, transmission electron microscopy, contact angle measurements, zeta-potential measurements, X-ray diffraction and UV vis absorption spectroscopy. The product exhibited high visible-light-driven photocatalytic performance in the photodegradation of rhodamine B. PMID- 29031452 TI - Construction of vesicle CdSe nano-semiconductors photocatalysts with improved photocatalytic activity: Enhanced photo induced carriers separation efficiency and mechanism insight. AB - Visible-light-driven photocatalysis as a green technology has attracted a lot of attention due to its potential applications in environmental remediation. Vesicle CdSe nano-semiconductor photocatalyst are successfully prepared by a gas template method and characterized by a variety of methods. The vesicle CdSe nano semiconductors display enhanced photocatalytic performance for the degradation of tetracycline hydrochloride, the photodegradation rate of 78.824% was achieved by vesicle CdSe, which exhibited an increase of 31.779% compared to granular CdSe. Such an exceptional photocatalytic capability can be attributed to the unique structure of the vesicle CdSe nano-semiconductor with enhanced light absorption ability and excellent carrier transport capability. Meanwhile, the large surface area of the vesicle CdSe nano-semiconductor can increase the contact probability between catalyst and target and provide more surface-active centers. The photocatalytic mechanisms are analyzed by active species quenching. It indicates that h+ and O2- are the main active species which play a major role in catalyzing environmental toxic pollutants. Simultaneously, the vesicle CdSe nano semiconductor had high efficiency and stability. PMID- 29031453 TI - Whole-genome comparison of urinary pathogenic Escherichia coli and faecal isolates of UTI patients and healthy controls. AB - The faecal flora is a common reservoir for urinary tract infection (UTI), and Escherichia coli (E. coli) is frequently found in this reservoir without causing extraintestinal infection. We investigated these E. coli reservoirs by whole genome sequencing a large collection of E. coli from healthy controls (faecal), who had never previously had UTI, and from UTI patients (faecal and urinary) sampled from the same geographical area. We compared MLST types, phylogenetic relationship, accessory genome content and FimH type between patient and control faecal isolates as well as between UTI and faecal-only isolates, respectively. Comparison of the accessory genome of UTI isolates to faecal isolates revealed 35 gene families which were significantly more prevalent in the UTI isolates compared to the faecal isolates, although none of these were unique to one of the two groups. Of these 35, 22 belonged to a genomic island and three putatively belonged to a type VI secretion system (T6SS). MLST types and SNP phylogeny indicated no clustering of the UTI or faecal E. coli from patients distinct from the control faecal isolates, although there was an overrepresentation of UTI isolates belonging to clonal lineages CC73 and CC12. One combination of mutations in FimH, N70S/S78N, was significantly associated to UTI, while phylogenetic analysis of FimH and fimH identified no signs of distinct adaptation of UTI isolates compared to faecal-only isolates not causing UTI. In summary, the results showed that (i) healthy women who had never previously had UTI carried faecal E. coli which were overall closely related to UTI and faecal isolates from UTI patients; (ii) UTI isolates do not cluster separately from faecal-only isolates based on SNP analysis; and (iii) 22 gene families of a genomic island, putative T6SS proteins as well as specific metabolism and virulence associated proteins were significantly more common in UTI isolates compared to faecal-only isolates and (iv) evolution of fimH for these isolates was not linked to the clinical source of the isolates, apart from the mutation combination N70S/S78N, which was correlated to UTI isolates of phylogroup B2. Combined, these findings illustrate that faecal and UTI isolates, as well as faecal-only and faecal-UTI isolates, are closely related and can only be distinguished, if at all, by their accessory genome. PMID- 29031454 TI - A new plasma biomarker enhance the clinical prediction of postoperative acute kidney injury in patients with hepatocellular carcinoma. AB - BACKGROUND: The ratio of serum gamma-glutamyl transferase (GGT) to alanine aminotransferase (ALT) (GGT/ALT) is a marker for evaluating effects to antivirotic treatment and a helpful predictive factor for the prognosis of Child Pugh A hepatocellular carcinoma (HCC) patients after surgery. The relationship between the incidence of postoperative acute kidney injury (AKI) and preoperative GGT/ALT is studied in hepatectomized hepatitis B- or C- associated HCC patients. METHODS: A total of 253 hepatitis B or C virus-related HCC patients undergoing hepatectomy between September 2012 and August 2016 at our hospital were included in the retrospective study. Serum ALT and GGT value were recorded, and the GGT/ALT was computed. AKI was defined that based on the "Kidney Disease Improving Global Outcomes (KDIGO) criteria". RESULTS: AKI was observed in 22 (8.7%) patients. Mean GGT/ALT of patients with AKI was significantly higher than in those without it (6.0 vs 2.1, P<0.001). Multivariate analysis revealed an increase in GGT/ALT as an independent risk factor for AKI in hepatitis B- or C- associated HCC patients, particularly in patients with Barcelona Clinic Liver Cancer (BCLC) stage 0 or A staged HCC (odds ratio (OR) 1.400, P<0.001). Multivariate analysis showed that ALT (OR 0.966, P=0.044) was somewhat inversely associated with the incidence of AKI in hepatitis B- or C- associated HCC patients. The best cutoff point of GGT/ALT was 2.92. Multivariate analysis showed that preoperative GGT/ALT >=2.92 predicted poor prognosis of postoperative AKI in patients with HCC after hepatectomy (odds ratio 17.697, P<0.001). After propensity score matching, preoperative GGT/ALT >=2.92 remained an independent risk factor for AKI in HCC patients (OR 13.947, P=0.003). CONCLUSIONS: The GGT/ALT of patients with AKI was significantly higher than those without it. Evaluation of GGT/ALT before surgery can be a helpful predictive tool for postoperative AKI in hepatitis B- or C- associated HCC patients undergoing hepatectomy, particularly in patients with BCLC stage 0 or A staged HCC. Hepatitis B- or C- associated HCC patients with low ALT especially within the normal range may have a high risk of AKI. However, the reason remains to be elucidated. PMID- 29031455 TI - Does permanent atrial fibrillation modify response to cardiac resynchronization therapy in heart failure patients? AB - INTRODUCTION: The benefits of cardiac resynchronization therapy (CRT) documented in heart failure (HF) may be influenced by atrial fibrillation (AF). We aimed to compare CRT response in patients in AF and in sinus rhythm (SR). METHODS: We prospectively studied 101 HF patients treated by CRT. Rates of clinical, echocardiographic and functional response, baseline NYHA class and variation, left ventricular ejection fraction, volumes and mass, atrial volumes, cardiopulmonary exercise test (CPET) duration (CPET dur), peak oxygen consumption (VO2max) and ventilatory efficiency (VE/VCO2 slope) were compared between AF and SR patients, before and at three and six months after implantation of a CRT device. RESULTS: All patients achieved >=95% biventricular pacing, and 5.7% underwent atrioventricular junction ablation. Patients were divided into AF (n=35) and SR (n=66) groups; AF patients were older, with larger atrial volumes and lower CPET dur and VO2max before CRT. The percentages of clinical and echocardiographic responders were similar in the two groups, but there were more functional responders in the AF group (71% vs. 39% in SR patients; p=0.012). In SR patients, left atrial volume and left ventricular mass were significantly reduced (p=0.015 and p=0.021, respectively), whereas in AF patients, CPET dur (p=0.003) and VO2max (p=0.001; 0.083 age-adjusted) showed larger increases. CONCLUSION: Clinical and echocardiographic response rates were similar in SR and AF patients, with a better functional response in AF. Improvement in left ventricular function and volumes occurred in both groups, but left ventricular mass reduction and left atrial reverse remodeling were seen exclusively in SR patients (ClinicalTrials.gov identifier: NCT02413151; FCT code: PTDC/DES/120249/2010). PMID- 29031456 TI - Reply to the Letter to the Editor: "A peripheral comment". PMID- 29031457 TI - Microvalve controlled multi-functional microfluidic chip for divisional cell co culture. AB - Pneumatic micro-valve controlled microfluidic chip provides precise fluidic control for cell manipulation. In this paper, a multi-functional microfluidic chip was designed for three separate experiments: 1. Different cell lines were dispensed and cultured; 2. Three transfected SH-SY5Y cells were introduced and treated with methyl-phenyl-pyridinium (MPP+) as drug delivery mode; 3. Specific protection and interaction were observed among cell co-culture after nerve damage. The outcomes revealed the potential and practicability of our entire multi-functional pneumatic chip system on different cell biology applications. PMID- 29031458 TI - Quiet eye training improves accuracy in basketball field goal shooting. AB - University students (N = 240) were randomly assigned to a quiet eye training (QET) or technical training (TT) group, and their shooting accuracy (%) determined during a pre-, post-, and transfer test in basketball field shooting. Both groups first received lectures on visuomotor processing and the quiet eye (QE), followed by a laboratory in which participants in the QET group were taught how to adopt the QE characteristics of elite free-throw shooters, which stresses optimal gaze control and focus relative to a single target location, while the TT participants were taught elite biomechanics which stresses optimal control of the shooting stance, arms, and hands. Overall, the QET group's accuracy was significantly higher than the TT group, but differences were found due to skill level and defensive pressure. From pre to post, the accuracy of the QET novices increased significantly compared to the TT novices, but declined during transfer. Both the QET and TT intermediates had relatively high accuracy scores during the pre- and posttests, which then declined, as expected, during the transfer test against defensive pressure. However, during transfer the QET group's accuracy remained higher than the TT group and was surprisingly similar to that found in elite competition. It is recommended that novice and intermediate basketball players be taught how to adopt the QE of elite players, rather than learning only the technical/mechanical aspects of shooting. Theoretically, the study is placed within the context of top-down "cognitive control," as proposed by Cavanagh and Frank (2014), and QET studies which show that when learners are taught how to adopt the QE of elite performers, this appears to contribute to a more optimal organization of the neural networks underlying control of the task which, in turn, leads to improved shooting performance. PMID- 29031459 TI - Effectiveness of above real-time training on decision-making in elite football: A dose-response investigation. AB - We examined the effects of video-based training in elite footballers' decision making by presenting videos with training and testing scenarios at above real time speeds. We also examined different training protocols to establish how much training is beneficial. We found that above real-time training improved accuracy and response time in football decision-making. In terms of scheduling, we found that the benefits were short lasting and did not last beyond 2 weeks. PMID- 29031460 TI - Can athletes benefit from difficulty? A systematic review of growth following adversity in competitive sport. AB - Research points to the notion that athletes have the potential to benefit from difficulty. This phenomenon-otherwise known as growth following adversity-has attracted increasing attention from sport psychology scholars. In this paper, we systematically review and synthesize the findings of studies in this area to better understand: (a) how growth has been conceptualized in competitive sport, (b) the theory underpinning the study of growth in sport performers, (c) the nature of research conducted in this area, and (d) the adversity- and growth related experiences of competitive athletes. Following the application of inclusion criteria and methodological quality assessment, 17 studies were deemed suitable for inclusion in the systematic review. The findings of these studies are reviewed and synthesized in relation to study characteristics (viz. growth terminology, theoretical underpinning, study design, participant details, and data analysis), quality appraisal, adversity-related experiences (viz. negative events and experiences, and response to negative events and experiences), and growth-related experiences (viz. mechanisms of growth and indicators of growth). To facilitate understanding of growth following adversity in competitive sport, we address the definitions and theories that have informed the body of research, discuss the associated findings related to the adversity- and growth-related experiences of competitive athletes, and outline avenues for future research. It is hoped that this review and synthesis will facilitate understanding and inform practice in this area. PMID- 29031461 TI - Sleep, sport, and the brain. AB - The recognition that sleep is one of the foundations of athlete performance is increasing both in the elite athlete arena as well as applied performance research. Sleep, as identified through sleep deprivation and sleep extension investigations, has a role in performance, illness, injury, metabolism, cognition, memory, learning, and mood. Elite athletes have been identified as having poorer quality and quantity of sleep in comparison to the general population. This is likely the result on training times, competition stress/anxiety, muscle soreness, caffeine use, and travel. Sleep, in particular slow wave sleep, provides a restorative function to the body to recover from prior wakefulness and fatigue by repairing processes and restoring energy. In addition, research in the general population is highlighting the importance of sleep on neurophysiology, cognitive function, and mood which may have implications for elite athlete performance. It is thus increased understanding of both the effects of sleep deprivation and potential mechanisms of influence on performance that may allow scientists and practitioners to positively influence sleep in athletes and ultimately maximize performances. PMID- 29031462 TI - Effects of acute high-intensity exercise on cognitive performance in trained individuals: A systematic review. AB - BACKGROUND: High-intensity exercise is generally considered to have detrimental effects on cognition. However, high fitness levels are suggested to alleviate this effect. OBJECTIVES: The specific objective of this review was to evaluate the literature on the effect of acute high-intensity exercise on cognitive performance in trained individuals. METHODS: Studies were sourced through electronic databases, reference lists of retrieved articles, and manual searches of relevant reviews. Included studies examined trained participants, included a high-intensity exercise bout, used a control or comparison group/condition, and assessed cognitive performance via general laboratory tasks during or <=10min following exercise cessation. RESULTS: Ten articles met the inclusion criteria. Results indicated that the effect of acute high-intensity exercise on cognitive performance in trained individuals is dependent on the specific cognitive domain being assessed. Generally, simple tasks were not affected, while the results on complex tasks remain ambiguous. Accuracy showed little tendency to be influenced by high-intensity exercise compared to measures of speed. CONCLUSION: Multiple factors influence the acute exercise-cognition relationship and thus future research should be highly specific when outlining criteria such as fitness levels, exercise intensity, and exercise mode. Furthermore, greater research is needed assessing more cognitive domains, greater exercise durations/types, and trained populations at high intensities. PMID- 29031463 TI - Changes in brain activity during action observation and motor imagery: Their relationship with motor learning. AB - Many studies have demonstrated that training utilizing action observation and/or motor imagery improves motor performance. These two techniques are widely used in sports and in the rehabilitation of movement-related disorders. Motor imagery has also been used for brain-machine/computer interfaces (BMI/BCI). During both action observation and motor imagery, motor-related regions such as the premotor cortex and inferior parietal lobule are activated. This is common to actual execution and are involved with the underlying mechanisms of motor learning without execution. Since it is easier to record brain activity during action observation and motor imagery than that during actual sport movements, action observation, and motor imagery of sports skills or complex whole body movements have been utilized to investigate how neural mechanisms differ across the performance spectrum ranging from beginner to expert. However, brain activity during action observation and motor imagery is influenced by task complexity (i.e., simple vs complex movements). Furthermore, temporal changes in brain activity during actual execution along the long time course of motor learning are likely nonlinear and would be different from that during action observation or motor imagery. Activity in motor-related regions during action observation and motor imagery is typically greater in experts than in nonexperts, while the activity during actual execution is often smaller in experts than in nonexperts. PMID- 29031464 TI - Moving concussion care to the next level: The emergence and role of concussion clinics in the UK. AB - Concussion is a worldwide issue in sports medicine at present, and in recent years has evolved into a major consideration for sports in the United Kingdom (UK). Governing bodies, sports clinicians, and indeed athletes themselves are dealing with the implications that this injury brings. In parallel with this, innovative means of managing this condition are emerging. The creation of specialized concussion clinics (which mirror those present in the United States and Canada) is one means of enhancing concussion care in the UK. In this chapter, the emergence of concussion clinics in the UK will be discussed. The specific roles of the multidisciplinary teams working in these clinics will be outlined (including the disciplines of sports medicine, radiology, neurology, physiotherapy, and psychology/psychiatry), and the approaches used in the management of concussion in this setting will be explored. Future recommendations for the growth and development of clinic-based concussion care in the UK will also be discussed. PMID- 29031465 TI - Neurocognitive mechanisms of the flow state. AB - While the experience of flow is often described in attentional terms-focused concentration or task absorption-specific cognitive mechanisms have received limited interest. We propose that an attentional explanation provides the best way to advance theoretical models and produce practical applications, as well as providing potential solutions to core issues such as how an objectively difficult task can be subjectively effortless. Recent research has begun to utilize brain imaging techniques to investigate neurocognitive changes during flow, which enables attentional mechanisms to be understood in greater detail. Some tensions within flow research are discussed; including the dissociation between psychophysiological and experiential measures, and the equivocal neuroimaging findings supporting prominent accounts of hypofrontality. While flow has received only preliminary investigation from a neuroscientific perspective, findings already provide important insights into the crucial role played by higher-order attentional networks, and clear indications of reduced activity in brain regions linked to self-referential processing. The manner in which these processes may benefit sporting performance are discussed. PMID- 29031466 TI - Discerning measures of conscious brain processes associated with superior early motor performance: Capacity, coactivation, and character. AB - This study explored the relationship between working memory (WM) capacity, corticocortical communication (EEG coherence), and propensity for conscious control of movement during the performance of a complex far-aiming task. We were specifically interested in the role of these variables in predicting motor performance by novices. Forty-eight participants completed (a) an assessment of WM capacity (an adapted Rotation Span task), (b) a questionnaire that assessed the propensity to consciously control movement (the Movement Specific Reinvestment Scale), and (c) a hockey push-pass task. The hockey push-pass task was performed in a single task (movement only) condition and a combined task (movement plus decision) condition. Electroencephalography (EEG) was used to examine brain activity during the single task. WM capacity best predicted single task performance. WM capacity in combination with T8-Fz coherence (between the visuospatial and motor regions of the brain) best predicted combined task performance. We discuss the implied roles of visuospatial information processing capacity, neural coactivation, and propensity for conscious processing during performance of complex motor tasks. PMID- 29031467 TI - Action-skilled observation: Issues for the study of sport expertise and the brain. AB - With a growing body of research devoted to uncovering regions of the brain implicated in action observation following various action-related experiences, including sport, we ask what we know from this research, and what we still need to know, as it pertains to sport and the brain. To do this, we review and integrate knowledge garnered from developmental work, short-term motor learning studies, and most significantly sport athletes across varying skill levels. We consider various neurophysiological methods, including TMS, fMRI, and EEG, which have been used to help uncover brain regions involved in action-skilled observation. We are particularly interested in how these processes are related to action prediction and the detection of deceptive actions among athlete groups. This research is considered within broad theoretical frameworks related to action simulation and prediction, although our main focus is on the brain regions that have been implicated in skilled action observation and the implications of this research for knowledge and further study of sport expertise. PMID- 29031468 TI - Gunslingers, poker players, and chickens 1: Decision making under physical performance pressure in elite athletes. AB - BACKGROUND: The cognitive skills required during sport are highly demanding; accurate decisions based on the processing of dynamic environments are made in a fraction of a second (Walsh, 2014). Optimal decision-making abilities are crucial for success in sporting competition (Bar-Eli et al., 2011; Kaya, 2014). Moreover, for the elite athlete, decision making is required under conditions of intense mental and physical pressure (Anshel and Wells, 2000), yet much of the work in this area has largely ignored the highly stressful context in which athletes operate. A number of studies have shown that conditions of elevated pressure influence athletes' decision quality (Kinrade et al., 2015; Smith et al., 2016), response times (Hepler, 2015; Smith et al., 2016) and risk taking (Pighin et al., 2015). However, almost all of this work has been undertaken in nonelite athletes and participants who do not routinely operate under conditions of high stress. Thus, there is very little known about the influence of pressure on decision making in elite athletes. OBJECTIVE: This study investigated the influence of physical performance pressure on decision making in a sample of world-class elite athletes. This allowed an examination of whether findings from the previous work in nonelite athletes extend to those who routinely operate under conditions of high stress. How this work could be applied to improve insight and understanding of decision making among sport professionals is examined. We sought to introduce a categorization of decision making useful to practitioners in sport: gunslingers, poker players, and chickens. METHODS: Twenty-three elite athletes who compete and have frequent success at an international level (including six Olympic medal winners) performed tasks relating to three categories of decision making under conditions of low and high physical pressure. Decision making under risk was measured with performance on the Cambridge Gambling Task (CGT; Rogers et al., 1999), decision making under uncertainty with the Balloon Analogue Risk Task (BART; Lejuez et al., 2002), and fast reactive responses and interference with the Stroop Task (Stroop, 1935). Performance pressures of physical exhaustion was induced via an exercise protocol consisting of intervals of maximal exertion undertaken on a watt bike. RESULTS: At a group level, under physical pressure elite athletes were faster to respond to control trials on the Stroop Task and to simple probabilistic choices on the CGT. Physical pressure was also found to increase risk taking for decisions where probability outcomes were explicit (on the CGT), but did not affect risk taking when probability outcomes were unknown (on the BART). There were no significant correlations in the degree to which individuals' responses changed under pressure across the three tasks, suggesting that elite athletes did not show consistent responses to physical pressure across measures of decision making. When assessing the applicability of results based on group averages to individual athletes, none of the sample showed an "average" response (within 1 SD of the mean) to pressure across all three decision-making tasks. CONCLUSION: There are three points of conclusion. First, an immediate scientific point that highlights a failure of transfer of work reported from nonelite athletes to elite athletes in the area of decision making under pressure. Second, a practical conclusion with respect to the application of this work to the elite sporting environment, which highlights the limitations of statistical approaches based on group averages and thus the beneficial use of individualized profiling in feedback sessions. Third, the application of this work in a sports setting is described, in particular the development and implementation of a decision-making taxonomy as a framework to conceptualize and communicate psychological skills among elite sporting professionals. PMID- 29031469 TI - Gunslingers, poker players, and chickens 2: Decision-making under physical performance pressure in subelite athletes. AB - BACKGROUND: Having investigated the influence of acute physical exhaustion on decision-making in world-class elite athletes in Parkin et al. (2017), here a similar method is applied to subelite athletes. These subelite athletes were enrolled on a Team GB talent development program and were undergoing training for possible Olympic competition in 4-8 years. They differ from elite athletes examined previously according to expertise and age. While considered elite (Swann et al., 2015), the subelite athletes had approximately 8 years fewer sporting experience and were yet to obtain sustained success on the international stage. Additionally, the average age of the subelite sample is 20 years; thus, they are still undergoing the behavioral, cognitive, and neuronal changes that occur during the transition from late adolescence to young adulthood (Blakemore and Robbins, 2012). Previous work has used broad definitions of elite status in sport, and as such overlooked different categories within the spectrum of elite athletes (Swann et al., 2015). Therefore it is important to consider subelite athletes as a discrete point on the developmental trajectory of elite sporting expertise. OBJECTIVE: This work aims to investigate the influence of physical pressure on key indicators of decision-making in subelite athletes. It forms part of a wider project examining decision-making across different stages of the developmental trajectory in elite sport. In doing so, it aims to examine how to apply and develop psychological insights useful to an elite sporting environment. METHODS: 32 subelite athletes (18 males, mean age: 20 years) participated in the study. Performance across three categories of decision-making was assessed under conditions of low and high physical pressure. Decision-making under risk was measured with performance of the Cambridge Gambling Task (CGT; Rogers et al., 1999), decision-making under uncertainty with the Balloon Analogue Risk Task (BART; Lejuez et al., 2002), and fast reactive responses and inhibition via the Stop Signal Reaction Time Task (SSRT; Logan, 1994). Physical exhaustion was induced via intervals of maximal exertion exercise on a wattbike. RESULTS: Under pressure subelite athletes showed increased risk taking for both decisions where probability outcomes were explicit (on the CGT), and those where probability outcomes were unknown (on the BART). Despite making quicker decisions under pressure, with fewer errors, on the CGT, subelite athletes showed a reduced ability to optimally adjust betting behavior according to reward and loss contingencies. Fast reactive responses to perceptual stimuli and response inhibition did not change as a result of physical pressure. Individual responses to pressure showed a negative correlation in that a decrease in reaction times on the SSRT Task under pressure was associated with an increase in risk taking on the BART. When assessing the applicability of results based on group averages to individual athletes, 17% of the sample showed an "average" response (within 1 SD of the mean) to pressure across all three decision-making tasks. CONCLUSION: Indicators of decision-making in a sample of subelite athletes are influenced by physical pressure, with a shift toward increased indiscriminate risk taking. The influence that physical pressure has on decision-making was different to that observed in world-class elite athletes; this highlights the importance of distinguishing between athletes at the elite level (Swann et al., 2015). The application of this work to a novel subgroup of elite athletes, including the implementation of a decision-making taxonomy, is discussed. PMID- 29031470 TI - The resonant system: Linking brain-body-environment in sport performance?. AB - The ecological dynamics approach offers new insights to understand how athlete nervous systems are embedded within the body-environment system in sport. Cognitive neuroscience focuses on the neural bases of athlete behaviors in terms of perceptual, cognitive, and motor functions defined within specific brain structures. Here, we discuss some limitations of this traditional perspective, addressing how athletes functionally adapt perception and action to the dynamics of complex performance environments by continuously perceiving information to regulate goal-directed actions. We examine how recent neurophysiological evidence of functioning in diverse cortical and subcortical regions appears more compatible with an ecological dynamics perspective, than traditional views in cognitive neuroscience. We propose how athlete behaviors in sports may be related to the tuning of resonant mechanisms indicating that perception is a dynamic process involving the whole body of the athlete. We emphasize the important role of metastable dynamics in the brain-body-environment system facilitating continuous interactions with a landscape of affordances (opportunities for action) in a performance environment. We discuss implications of these ideas for performance preparation and practice design in sport. PMID- 29031471 TI - Gunslingers, poker players, and chickens 3: Decision making under mental performance pressure in junior elite athletes. AB - BACKGROUND: Having investigated the decision making of world class elite and subelite athletes (see Parkin and Walsh, 2017; Parkin et al., 2017), here the abilities of those at the earliest stage of entry to elite sport are examined. Junior elite athletes have undergone initial national selection and are younger than athletes examined previously (mean age 13 years). Decision making under mental pressure is explored in this sample. During performance an athlete encounters a wide array of mental pressures; these include the psychological impact of errors, negative feedback, and requirements for sustained attention in a dynamic environment (Anshel and Wells, 2000; Mellalieu et al., 2009). Such factors increase the cognitive demands of the athletes, inducing distracting anxiety-related thoughts known as rumination (Beilock and Gray, 2007). Mental pressure has been shown to reduce performance of decision-making tasks where reward and loss contingencies are explicit, with a shift toward increased risk taking (Pabst et al., 2013; Starcke et al., 2011). Mental pressure has been shown to be detrimental to decision-making speed in comparison to physical stress, highlighting the importance of considering a range of different pressures encountered by athletes (Hepler, 2015). OBJECTIVE: To investigate the influence of mental pressure on key indicators of decision making in junior elite athletes. This chapter concludes a wider project examining decision making across developmental stages in elite sport. The work further explores how psychological insights can be applied in an elite sporting environment and in particular tailored to the requirements of junior athletes. METHODS: Seventeen junior elite athletes (10 males, mean age: 13.80 years) enrolled on a national youth athletic development program participated in the study. Performance across three categories of decision making was assessed under conditions of low and high mental pressure. Decision making under risk was measured via the Cambridge Gambling Task (CGT; Rogers et al., 1999), decision making under uncertainty via the Balloon Analogue Risk Task (BART; Lejuez et al., 2002), and fast reactive responses to perceptual stimuli via the Visual Search Task (Treisman, 1982). Mental pressure was induced with the addition of a concurrent verbal memory task, used to increase cognitive load and mimic the distracting effects of anxiety related rumination. RESULTS: In junior elite athletes, fast reactive responses to perceptual stimuli (on the Visual Search Task) were slower under conditions of mental pressure. For decision making under risk there was an interaction of mental pressure and gender on the amount of points gambled, under pressure there was a higher level of risk taking in male athletes compared to females. There was no influence of mental pressure on decision making under uncertainity. There were no significant correlations in the degree to which individual's responses changed under pressure across the three measures of decision making. When assessing the applicability of results based on group averages there were no junior elite athletes who showed an "average" response (within 1SD of the mean) to mental pressure across all the three decision-making tasks. CONCLUSION: Mental pressure affects decision making in a sample of junior elite athletes, with a slowing of response times, and modulations to performance of decision making under risk that have a high requirement for working memory. In relation to sport, these findings suggest that novel situations that place high cognitive demands on the athlete may be particularly influenced by mental pressure. The application of this work in junior elite athletes included the feedback of individual results and the implementation of a decision-making taxonomy. PMID- 29031472 TI - Catching on it early: Bodily and brain anticipatory mechanisms for excellence in sport. AB - Programming and executing a subsequent move is inherently linked to the ability to anticipate the actions of others when interacting. Such fundamental social ability is particularly important in sport. Here, we discuss the possible mechanisms behind the highly sophisticated anticipation skills that characterize experts. We contend that prediction in sports might rely on a finely tuned perceptual system that endows experts with a fast, partially unconscious, pickup of relevant cues. Furthermore, we discuss the role of the multimodal, perceptuomotor, multiple-duty cells (mirror neurons) that play an important function in action anticipation by means of an inner motor simulation process. Finally, we suggest the role of predictive coding, interoception, and the enteric nervous system as the processual and biological support for intuition and "gut feelings" in sports-the missing link that might explain outstanding expert performance based on action anticipation. PMID- 29031473 TI - Exploring the applicability of the contextual interference effect in sports practice. AB - This review will consider three key issues considered critical when determining the efficacy of the contextual interference effect when applied to sports practice. First, the issue of complexity is considered in relation to the amount of interference actually needed in the applied sports setting to create effective learning. Second, the traditional underpinning mechanism/s of contextual interference are discussed in relation to recent neurophysiological perspectives on their viability. A counter-position to these dominant theories is also presented drawing on an implicit learning framework. The final issue considers the typical measures of learning used within the contextual interference literature and scrutinizes them relative to the needs of bridging the apparent theory-practice divide. The concluding section then presents a model to measure the degree of contextual interference within the applied setting, which in turn offers both future research directions as well as guidelines for practitioners. PMID- 29031474 TI - Sport, time pressure, and cognitive performance. AB - Sport participation, fitness, and expertise have been associated with a range of cognitive benefits in a range of populations but both the factors that confer such benefits and the nature of the resulting changes are relatively unclear. Additionally, the interactions between time pressure and cognitive performance for these groups is little studied. Using a flanker task, which measures the ability to selectively process information, and with different time limits for responding, we investigated the differences in performance for participants in (1) an unpredictable, open-skill sport (volleyball), (2) an exercise group engaged in predictable, closed-skill sports (running, swimming), and (3) nonsporting controls. Analysis by means of a drift diffusion analysis of response times was used to characterize the nature of any differences. Volleyball players were more accurate than controls and the exercise group, particularly for shorter time limits for responding, as well as tending to respond more quickly. Drift diffusion model analysis suggested that better performance by the volleyball group was due to factors such as stimulus encoding or motor programming and execution rather than decision making. Trends in the pattern of data seen also suggest less noisy cognitive processing (rather than greater efficiency) and should be further investigated. PMID- 29031475 TI - Natural infection of croton yellow vein mosaic virus and its cognate betasatellite in germplasm of different Crambe spp in India. AB - Crambe is an important crop grown worldwide for industrial oil and seed meal. Besides the fungal and bacterial diseases, the crop is reported to be infected by tobacco mosaic virus, beet western yellows virus and turnip mosaic virus under experimental condition. Till now, there was no report of natural infection of any begomovirus in this crop. In the present study, a leaf curl disease was observed in germplasm accessions of three species of Crambe (C. abyssinica, C. glabrata and C. hispanica). Based on the symptoms and presence of whitefly population in the field, begomovirus infection was suspected. Molecular characterization through RCA approach, indicated presence of croton yellow vein mosaic virus (CYVMV, KJ747958) and croton yellow vein mosaic betasatellite (CroYVMB, KM229762). Co-agroinoculation of partial dimeric construct of CYVMV with complete dimeric construct of CroYVMB, produced typical leaf curl symptoms in C. abyssinica, whereas, agroinoculation of partial dimeric construct of CYVMV alone could not produce symptoms in the same plant. In contrast, the CYVMV construct alone could produce symptom in Nicotiana benthamiana, a model host for plant virus studies. In N. benthamiana co-inoculation of CroYVMV with CYVMV construct develop more severe symptoms. However, neither the CYVMV construct alone nor the co-inoculation with CroYVMB produce any symptom in Arabidopsis thaliana even with different methods of inoculation. Inoculated Arabidopsis thaliana also did not yield any amplification of the virus as assessed through PCR and rolling circle amplification (RCA). Thus it confirmed that for successful infection in crambe, CYVMV requires betasatellite, while in N. benthamiana, it does not require betasatellite for symptom induction and in Arabidopsis thaliana CYVMV alone or in presence of betasatellite did not replicate and produce any symptom. This study constitutes the first confirmed record of natural infection of a begomovirus in crambe and further confirmed that cognate betasatellite of CYVMV has differential role in infectivity in different hosts. PMID- 29031476 TI - IL-1beta upregulates Muc5ac expression via NF-kappaB-induced HIF-1alpha in asthma. AB - The manifest and important feature in respiratory diseases, including asthma and COPD (chronic obstructive pulmonary disease), is the increased numbers and hypersecretion of goblet cells and overexpression of mucins, especially Muc5ac. Many proinflammatory cytokines play important roles in goblet cell metaplasia and overproduction of Muc5ac. However, the effect of IL-1beta on Muc5ac expression in asthma remains unknown. Here, we detected the correlation between IL-1beta and Muc5ac in asthma patients and further explored the mechanism of IL-1beta-induced Muc5ac overexpression. Our results showed that Muc5ac and IL-1beta were up regulated in 41 patients with asthma and that Muc5ac overexpression was related with IL-1beta in asthma (R2=0.668, p?0.001). Furthermore, the correlation between IL-1beta and Muc5ac is higher in severe group than that in moderate group. In vitro experiments with normal human bronchial epithelial cells (NHBECs) showed that IL-1beta up-regulated Muc5ac expression in NHBEC in a time- and dosage dependent manner. Hypoxia-induced HIF-1alpha was responsible for Muc5ac expression mediated by IL-1beta. Knocking down HIF-1alpha by siRNA decreased Muc5ac expression under hypoxia even in IL-1beta-treated NHBEC cells. Luciferase reporter assay showed that HIF-1alpha enhanced Muc5ac promoter activity in HEK293T cells. HIF-1alpha could specifically bind to the promoter of Muc5ac by EMSA. The correlation among IL-1beta, HIF-1alpha and Muc5ac was observed in patients with asthma. Mechanically, NF-kappaB activation was essential to IL 1beta-induced HIF-1alpha upregulation via the canonical pathway of NF-kappaB. The level of nuclear p65, a subunit of NF-kappaB, was obviously increased in NHBEC cells under IL-1beta treatment. IL-1beta did not change either HIF-1alpha or Muc5ac expression when inhibiting NF-kappaB signaling with Bay11-7082, an inhibitor of NF-kappaB. Collectively, we concluded that IL-1beta up-regulated Muc5ac expression via NF-kappaB-induced HIF-1alpha in asthma and provided a potential therapeutic target for asthma. PMID- 29031477 TI - Acute developmental exposure to 4-hydroxyandrostenedione has a long-term effect on visually-guided behaviors. AB - Estrogenic and anti-estrogenic endocrine disrupting compounds (EDCs) are recognized as critical modulators of neural development, including sensory system development. Using the zebrafish model, we tested the effect of transient developmental exposure to a known anti-estrogenic EDC on adult visually-guided behavior. In particular, we exposed zebrafish aged 24-hour post-fertilization (hpf), 72 hpf, or 7-days post-fertilization (dpf) to the aromatase inhibitor 4 hydroxyandrostenedione (4-OH-A) for 24h. After this time, the fish were removed from treatment, placed into control conditions, and reared until adulthood (3 4months) when visually-guided optomotor responses (OMR) were assessed. Our results show significant decreases in positive OMR in adults exposed to 4-OH-A at 72 hpf and 7 dpf. These deficits were not accompanied by changes in overall swimming behaviors and startle responses, suggesting 4-OH-A specifically effected the visual system. Overall, this study identified long-term, quantifiable effects in visually-guided adult behaviors resulting from transient developmental exposure to the anti-estrogenic EDC, 4-OH-A. Further, these effects were noted when 4-OH-A exposure occurred after hatching, suggesting estrogen signaling is important for visual system maturation. PMID- 29031478 TI - Patterns of facial trauma before and after legalization of marijuana in Denver, Colorado: A joint study between two Denver hospitals. AB - INTRODUCTION: The effect of marijuana on human health has been studied extensively. Marijuana intoxication has been shown to affect performance, attention span, and reaction time. The public health relationship between trauma and cannabis use has also been studied, with mixed conclusions. In this report, the effect of marijuana legalization on many aspects of facial trauma at two hospitals in Denver, Colorado is examined. METHODS: A retrospective review of the electronic medical records was undertaken. Mann-Whitney U tests were used to compare age of patients before and after legalization, and chi squared analyses were used to compare mechanism of injury, and fracture types before and after recreational marijuana legalization in Denver, Colorado. Geographical location of patients was also considered. RESULTS: No significant increase was found in race before and after marijuana legalization (p=0.19). A significant increase in age was found before (M=39.54,SD=16.37), and after (M=41.38,SD=16.66) legalization (p<0.01). Maxillary and skull base fracture proportions significantly increased following legalization (p<0.001 and p<0.001respectively). No significant differences were seen in the proportion of patients who lived in urban and rural counties before and after legalization (p>0.05). CONCLUSION: Public health efforts should be directed towards educating residents and visitors of Colorado on the effects and toxicology of marijuana. More epidemiologic studies are needed for further assessment of the long-term effects of the legalization of marijuana on the population. PMID- 29031479 TI - The optimum chest compression site with regard to heart failure demonstrated by computed tomography. AB - BACKGROUND: To determine the optimum chest compression site during cardiopulmonary resuscitation (CPR) with regard to heart failure (HF) by applying three-dimensional (3D) coordinates on computed tomography (CT). METHODS: This retrospective, cross-sectional study involved adults who underwent echocardiography and CT on the same day from 2007 to 2017. Incomplete CT images or information on HF, cardiac medication between echocardiography and CT, or thoracic abnormalities were excluded. Cases were checked whether they had HF through symptom/sign assessment, N-terminal pro-B type natriuretic peptide, and echocardiography. We set the xiphisternal joint's midpoint as the reference (0, 0, 0) to draw a 3D coordinate system, designating leftward, upward, and into-the thorax directions as positive. The coordinate of the maximum LV diameter's midpoint (P_max.LV) was identified. RESULTS: Enrolled were 148 patients (63.0+/ 15.1 years) with 87 females and 76 HF cases. P_max.LV of HF cases was located more leftwards, lower, and deeper than non-HF cases (5.69+/-0.98, -1.51+/-1.67, 5.76+/-1.09 cm vs. 5.00+/-0.83, -0.99+/-1.36, 5.25+/-0.71 cm, all p<0.05). Fewer HF cases had their LV compressed than non-HF cases (59.2% vs. 77.8%, p=0.025) when being compressed according to the current guidelines. The aorta (vs. LV) was compressed in 85.5% and 81.9% of HF and non-HF cases, respectively, at 3 cm above the xiphisternal joint. At 6cm above the joint, the highest allowable position according to the current guidelines, all victims would have their aorta compressed directly during CPR rather than the LV. CONCLUSIONS: The lowest possible sternum just above the xiphisternal joint should be compressed especially for HF patients during CPR. PMID- 29031480 TI - More than a drink: A rare anaphylactic reaction to sparkling water. AB - Anaphylaxis is a potentially life threatening, type I hypersensitivity reaction which can occur within seconds to minutes after exposure to an allergen. Sulfites have been implicated in causing such reactions with symptoms ranging from mild to potentially life threatening. Here we present a patient who had an anaphylactic reaction secondary to exposure to sulfites found in sparkling water. PMID- 29031481 TI - Systemic lupus erythematosus following meningococcal vaccination. AB - Systemic erythematosus lupus (SLE) affects multiple organs and involves complex immune dysfunction. Because vaccinations are inherently designed to stimulate the immune response, they have been linked with increased risk for flare of SLE and other autoimmune disorders, and their association with new-onset autoimmune disease has been postulated in several case reports. To our knowledge, this is the first reported case of the meningococcal vaccine precipitating SLE in a previously undiagnosed patient. We present a case of a previously healthy, 17 year old Asian female who presented to the ED with 14 days of fever and fatigue after administration of the meningococcal vaccine, as well as 5 days of facial rash. Initial labs showed pancytopenia, bandemia, proteinuria, elevated erythrocyte sedimentation rate, and elevated d-dimer. Both the antinuclear antibodies (ANA) and anti-double stranded DNA were positive and cervical lymphadenopathy was present. This case highlights the importance of considering acute autoimmune reactions such as SLE in the differential diagnosis when assessing previously healthy patients presenting with systemic symptoms such as fever and rash in the setting of recent vaccination. PMID- 29031482 TI - Toxicologic/transport properties of NCS-382, a gamma-hydroxybutyrate (GHB) receptor ligand, in neuronal and epithelial cells: Therapeutic implications for SSADH deficiency, a GABA metabolic disorder. AB - We report the in vitro assessment of pharmacotoxicity for the high-affinity GHB receptor ligand, NCS-382, using neuronal stem cells derived from mice with a targeted deletion of the aldehyde dehydrogenase 5a1 gene (succinic semialdehyde dehydrogenase(SSADH)-deficient mice). These animals represent a phenocopy of the human disorder of GABA metabolism, SSADH deficiency, that metabolically features accumulation of both GABA and the GABA-analog gamma-hydroxybutyric acid in conjunction with a nonspecific neurological phenotype. We demonstrate for the first time using MDCK cells that NCS-382 is actively transported and capable of inhibiting GHB transport. Following these in vitro assays with in vivo studies in aldh5a1-/- mice, we found the ratio of brain/liver GHB to be unaffected by chronic NCS-382 administration (300mg/kg; 7 consecutive days). Employing a variety of cellular parameters (reactive oxygen and superoxide species, ATP production and decay, mitochondrial and lysosomal number, cellular viability and necrosis), we demonstrate that up to 1mM NCS-382 shows minimal evidence of pharmacotoxicity. As well, studies at the molecular level indicate that the effects of NCS-382 at 0.5mM are minimally toxic as evaluated using gene expression assay. The cumulative data provides increasing confidence that NCS-382 could eventually be considered in the therapeutic armament for heritable SSADH deficiency. PMID- 29031483 TI - DUOX expression in human keratinocytes and bronchial epithelial cells: Influence of vanadate. AB - Dual oxygenases (DUOX) 1 and 2, expressed in many animal tissues, participate in host defense at mucosal surfaces and may have important signaling roles through generation of reactive oxygen. Present work addresses their expression in cultured human epidermal keratinocytes and effects of cytokines and metal/metalloid compounds. Both DUOX1 and 2 were expressed at much higher levels after confluence than in the preconfluent state. Maximal DUOX1 mRNA levels were 50 fold those of DUOX2. DUOX1 and 2 were induced ~3 fold by interleukin 4, but only DUOX1 was induced by interferon gamma (IFNgamma). In human bronchial HBE1 cells, by contrast, interleukin 4 induced only DUOX 1, and IFNgamma induced only DUOX2. A survey in the keratinocytes of metal/metalloid compounds showed that arsenite, antimonite, chromate, cadmium, copper, lead and vanadate suppressed DUOX1 levels but did not prevent interleukin 4 stimulation. Effects on DUOX2 were less dramatic, except that vanadate potentiated the stimulation by IFNgamma up to 7 fold. The results indicate that epithelial cell types of different tissue origins can differ in their cytokine regulation and that epidermal cells can exhibit striking alterations in response due to certain metal/metalloid exposures. PMID- 29031484 TI - Effects of leucine-enriched essential amino acid and whey protein bolus dosing upon skeletal muscle protein synthesis at rest and after exercise in older women. AB - BACKGROUND & AIMS: Impaired anabolic responses to nutrition and exercise contribute to loss of skeletal muscle mass with ageing (sarcopenia). Here, we tested responses of muscle protein synthesis (MPS), in the under represented group of older women, to leucine-enriched essential amino acids (EAA) in comparison to a large bolus of whey protein (WP). METHODS: Twenty-four older women (65 +/- 1 y) received (N = 8/group) 1.5 g leucine-enriched EAA supplements (LEAA_1.5), 6 g LEAA (LEAA_6) in comparison to 40 g WP. A primed constant I.V infusion of 13C6-phenylalanine was used to determine MPS at baseline and in response to feeding (FED) and feeding-plus-exercise (FED-EX; 6 * 8 unilateral leg extensions; 75%1-RM). We quantified plasma insulin/AA concentrations, leg femoral blood flow (LBF)/muscle microvascular blood flow (MBF), and anabolic signalling via immunoblotting. RESULTS: Plasma insulineamia and EAAemia were greater and more prolonged with WP than LEAA, although LEAA_6 peaked at similar levels to WP. Neither LEAA or WP modified LBF or MBF. FED increased MPS similarly in the LEAA_1.5, LEAA_6 and WP (P < 0.05) groups over 0-2 h, with MPS significantly higher than basal in the LEAA_6 and WP groups only over 0-4 h. However, FED-EX increased MPS similarly across all the groups from 0 to 4 h (P < 0.05). Only p p70S6K1 increased with WP at 2 h in FED (P < 0.05), and at 2/4 h in FED-EX (P < 0.05). CONCLUSIONS: In conclusion, LEAA_1.5, despite only providing 0.6 g of leucine, robustly (perhaps maximally) stimulated MPS, with negligible trophic advantage of greater doses of LEAA or even to 40 g WP. Highlighting that composition of EAA, in particular the presence of leucine rather than amount is most crucial for anabolism. PMID- 29031485 TI - Allergic Contact Dermatitis by Anatomical Regions: Diagnostic Clues. AB - Allergic contact dermatitis (ACD) is a common disease in daily clinical practice, and its prevalence has increased in recent years. It is characterized clinically by varying degrees of erythema, vesiculation, flaking, and lichenification, though these signs can also be present in other eczematous diseases. Patch testing is the main diagnostic tool to confirm ACD, but its accurate interpretation requires correct correlation with the medical history (details of exposure) and physical examination. We provide a practical and instructive description of the most common clinical patters of ACD depending on the area affected. Knowledge of these patterns will not only help the clinician reach the diagnosis but will suggest possible allergens and forms of contact. PMID- 29031486 TI - Reply To: The Possible Combined Action of Different Trigger Agents in Rosacea. PMID- 29031487 TI - The Possible Combined Action of Different Trigger Agents in Rosacea. PMID- 29031488 TI - [Outcome of living kidney donors for transplantation]. AB - Nowadays, several treatments exist to treat terminal chronic renal failure. Best results for the recipients are obtained with kidney transplantation concerning mortality and quality of life. Transplantation is also the cheaper option for society. Living kidney donation raises the issue of the becoming of the donor, an absolutely healthy subject who gets to a surgical procedure. The becoming of living kidney donors has been compared with the one of controls subjects in several studies. The evaluations focused on the complications of nephrectomy in the short and long-term: kidney failure, hypertension, proteinuria, possibility of pregnancy, quality of life, and mortality. The first results did not show any risk linked to kidney donation, compared to general population. However, since 2013, kidney donors were found at higher risk for kidney failure and even for mortality, compared with controls selected like donor candidates. The risk of kidney donation is nevertheless acceptable and minimal, on the condition of rigorous selection of candidates and regular follow-up. PMID- 29031489 TI - [Pediatric nephrology: What should an adult nephrologist know about these diseases?] AB - In nephrology, some diseases begin specifically during childhood; however, they must be known by adult nephrologists so that to ensure continuity and homogeneity for their management. The aim of this review is therefore to propose a brief overview of the main pediatric diseases, for which a specific knowledge is warranted, and notably pediatric idiopathic nephrotic syndrome, cystinosis, primary hyperoxaluria and hereditaries tubulopathies. PMID- 29031490 TI - [Survey on the perception of competencies acquired during nephrology resident training in France]. AB - Due to a national theoretical training provided to all resident for many years and the ongoing discussions to change the organization of the resident training of specialized study diploma (SSD) of nephrology, a survey was done to assess the perception of skills acquired in the management of different clinical situations in terms of knowledge, expertise and attitudes. The expected results are intended to identify new training procedures for future nephrologists in France. The study was performed in 112 resident from 3rd and 4th year of nephrology resident training attending an educational seminar of the University College of Nephrology Teachers in May 2014. The survey was conducted with a self-administered anonymous questionnaire to assess the perception of the acquisition of different skills. The results show a heterogeneity acquisition between different areas of skills suggesting possible improvement with development of outpatient activity or with training in specialized units such as for peritoneal dialysis or plasma exchange activity. Therefore, these findings suggest further structuring of the regional training and development of the simulation training to acquire the expertise and attitudes. Finally, the use of an evaluation book of skills acquired throughout the training could be interesting in the context of standardization of validating training of nephrologists as proposed in the reform of the SSD of nephrology. PMID- 29031491 TI - Measurement of absolute K X-ray emission intensities in the decay of 103mRh. AB - A new experiment was designed to measure the photon emission intensities in the decay of 103mRh. The rhodium samples were activated in the ISIS experimental nuclear reactor at CEA Saclay. The procedure includes an absolute activity measurement by liquid scintillation counting using the Triple-to-Double Coincidence Ratio method, followed by X-ray spectrometry using a high-purity germanium detector to determine the photon emission intensities. The new result (IX = 0.0825 (17)) is derived with a significant reduction of the uncertainty. PMID- 29031492 TI - Comprehensive vs. Assisted Management of Mood and Pain Symptoms (CAMMPS) trial: Study design and sample characteristics. AB - BACKGROUND: Pain is the most common presenting somatic symptom in medical outpatients, and depression and anxiety are the two most common mental disorders. They frequently co-occur, are under-treated, and result in substantial disability and reduced health-related quality of life. OBJECTIVES: The Comprehensive vs. Assisted Management of Mood and Pain Symptoms (CAMMPS) study is a randomized comparative effectiveness trial designed to test the relative effectiveness of a lower-resource vs. a higher-resource technology-assisted intervention for the management of patients suffering from pain plus anxiety and/or depression. METHODS/DESIGN: CAMMPS has enrolled 294 primary care patients with chronic pain plus comorbid anxiety and/or depression and randomized them to either: 1) Assisted Symptom Management (ASM) consisting of automated symptom monitoring by interactive voice recording or Internet and prompted pain and mood self management; or 2) Comprehensive Symptom Management (CSM) which combines ASM with optimized medication management delivered by a nurse-physician specialist team and facilitated mental health care. Outcomes are assessed at baseline, 1, 3, 6, and 12months. The primary outcome is a composite pain-anxiety-depression (PAD) severity score. Secondary outcomes include individual pain, anxiety, and depression scores, health-related quality of life, disability, healthcare utilization, and treatment satisfaction. DISCUSSION: CAMMPS provides an integrated approach to PAD symptoms rather than fragmented care of single symptoms; coordinated symptom management in partnership with primary care clinicians and psychologists embedded in primary care; efficient use of health information technology; attention to physical and psychological symptom comorbidity; and the coupling of self-management with optimized medication management and facilitated mental health care. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT01757301. PMID- 29031493 TI - Beyond interstrand crosslinks repair: contribution of FANCD2 and other Fanconi Anemia proteins to the replication of DNA. AB - Biallelic mutations of FANCD2 and other components of the Fanconi Anemia (FA) pathway cause a disease characterized by bone marrow failure, cancer predisposition and a striking sensitivity to agents that induce crosslinks between the two complementary DNA strands (inter-strand crosslinks-ICL). Such genotoxins were used to characterize the contribution of the FA pathway to the genomic stability of cells, thus unravelling the biological relevance of ICL repair in the context of the disease. Notwithstanding this, whether the defect in ICL repair as the sole trigger for the multiple physiological alterations observed in FA patients is still under investigation. Remarkably, ICL-independent functions of FANCD2 and other components of the FA pathway were recently reported. FANCD2 contributes to the processing of very challenging double strand ends (DSEs: one ended Double Strand Breaks -DSBs- created during DNA replication). Other ICL-independent functions of FANCD2 include prevention of DNA breakage at stalled replication forks and facilitation of chromosome segregation at the end of M phase. The current understanding of replication-associated functions of FANCD2 and its relevance for the survival of genomically stable cells is herein discussed. PMID- 29031494 TI - NB 06: From a simple lysosomotropic aSMase inhibitor to tools for elucidating the role of lysosomes in signaling apoptosis and LPS-induced inflammation. AB - Ceramide generation is involved in signal transduction of cellular stress response, in particular during stress-induced apoptosis in response to stimuli such as minimally modified Low-density lipoproteins, TNFalpha and exogenous C6 ceramide. In this paper we describe 48 diverse synthetic products and evaluate their lysosomotropic and acid sphingomyelinase inhibiting activities in macrophages. A stimuli-induced increase of C16-ceramide in macrophages can be almost completely suppressed by representative compound NB 06 providing an effective protection of macrophages against apoptosis. Compounds like NB 06 thus offer highly interesting fields of application besides prevention of apoptosis of macrophages in atherosclerotic plaques in vessel walls. Most importantly, they can be used for blocking pH-dependent lysosomal processes and enzymes in general as well as for analyzing lysosomal dependent cellular signaling. Modulation of gene expression of several prominent inflammatory messengers IL1B, IL6, IL23A, CCL4 and CCL20 further indicate potentially beneficial effects in the field of (systemic) infections involving bacterial endotoxins like LPS or infections with influenza A virus. PMID- 29031495 TI - Evidence of mechanism in the evaluation of streptomycin and thalidomide. AB - This paper considers what evidence is needed to establish the effectiveness and safety of a drug therapy. The claim that A cures D is a particular case of a causal claim in medicine. So the paper begins with a general analysis of the evidence for causal claims in medicine. Such evidence is divided into two types: statistical evidence and evidence of mechanism. These are further divided into observational and interventional, producing a 2x2 classification. It is shown that historically there have different assessments of the importance of these different types of evidence. Evidence-based medicine (EBM) puts forward the thesis that claims of the form 'A cures D without harming the patient' can be established using only randomized controlled trials or RCTs. This thesis of EBM is criticized by considering two historical examples: streptomycin and thalidomide. Generalizing from these, it is claimed that the effectiveness and safety of a drug therapy can only be established by using both statistical evidence and evidence of mechanism. This is a specific instance of the Russo Williamson thesis. PMID- 29031496 TI - Ischemic Stroke in a Patient with Parry-Romberg Syndrome. AB - OBJECTIVE: This study aimed to discuss a case of a patient with a known diagnosis of Parry-Romberg syndrome (PRS) presenting with ischemic stroke, the second such reported case. BACKGROUND: PRS is a rare genetic disorder with progressive hemifacial atrophy, which usually presents within the first 2 decades of life. Neurologic manifestations include trigeminal neuralgia with associated deafness, hemifacial pain with associated migraine headaches, seizures, movement disorders, and neuropsychiatric symptoms. Many patients have elevated antinuclear antibody (ANA) titers. However, stroke is uncommon. CASE DESCRIPTION: A 34-year-old right handed woman, diagnosed with PRS at age 15, presented with right-sided weakness on waking up. Brain magnetic resonance imaging revealed a small infarct of the posterior limb of the left internal capsule. Vessel imaging revealed an aberrant right subclavian artery. Atrophy of the right-sided muscles of mastication is consistent with her known diagnosis of right-sided PRS. Stroke workup revealed a patent foramen ovale; however, no evidence of deep venous thrombosis was found. Hypercoagulability workup revealed an elevated ANA. The cause of stroke in this patient with PRS remains unclear, as she has no known risk factors. CONCLUSION: It is possible that elevated inflammatory markers associated with PRS may cause a proinflammatory state and predispose patients to small-vessel vasculopathy. It is important to note the association between PRS and ischemic stroke. PMID- 29031497 TI - Patent Foramen Ovale and the Risk of Cerebral Infarcts in Acute Pulmonary Embolism-A Prospective Observational Study. AB - BACKGROUND: Pulmonary embolism (PE) is associated with a risk of consecutive paradoxical embolism with brain infarction through a patent foramen ovale (PFO). The aims of this study were to assess the rate of new ischemic brain lesions (IBLs) using magnetic resonance imaging (MRI) during a 12-month follow-up period with anticoagulation and to evaluate the potential relationship with the presence of PFO on transesophageal echocardiography (TEE). SUBJECTS AND METHODS: Seventy eight patients with acute PE underwent baseline contrast TEE with brain MRI. After the 12-month follow-up, 58 underwent brain MRI. The rates of MRI documenting new IBLs were measured based on the presence of PFO. RESULTS: PFO was detected in 31 patients (39.7%). At baseline MRI, IBL was present in 39 of 78 patients (50%). The presence of IBL was not significantly higher in patients with PFO than in patients without PFO (20 [64.5% patients with PFO] versus 19 [40.4% without PFO] of 39 patients with baseline IBL, P = .063). At the follow-up MRI, in the group with new IBL (9 of 58 patients, 15.5%), the number of patients with PFO was significantly higher than that without PFO (7 [33.3%] versus 2 [5.4%], P = .008). PFO was identified as an independent predictor of new IBL (odds ratio 4.6 [1.6-47.4], P = .008). CONCLUSIONS: The presence of PFO was associated with new IBL in patients with PE. These patients are at a higher risk of ischemic stroke despite effective anticoagulation therapy. PMID- 29031498 TI - Low Free Triiodothyronine at Admission Predicts Poststroke Infection. AB - BACKGROUND: Poststroke infection (PSI) is common and is usually associated with a severe prognosis. We investigated the association between PSI and thyroid hormones, which are critical to immune regulation, in patients with acute stroke. METHODS: We retrospectively enrolled 520 consecutive patients with acute ischemic stroke (326 men; age, 71.9 +/- 13.2 years) admitted to our department between September 2014 and June 2016. The impact of serum thyroid hormone levels measured at admission (thyroid-stimulating hormone [TSH], free triiodothyronine [FT3], and free thyroxine [FT4]) on the PSI was evaluated using multivariate logistic regression analysis. RESULTS: We diagnosed 107 patients (20.6%; pneumonia, 65; urinary tract infection, 19; others, 23) with PSIs. While age (P <.001), body mass index (P = .0012), preadmission modified Rankin scale score (P = .0001), National Institutes of Health Stroke Scale score on admission (P <.001), admission FT3 level (P <.001), atrial fibrillation (P <.001), and ischemic heart disease (P = .0451) were significantly associated with PSI, we found no relationship among TSH levels, FT4 levels, and PSI occurrence. After multivariate adjustment, patients with PSIs were more frequently in the Q1 quartile (<=2.25 pg/mL) than in the Q2 (2.26-2.55 pg/mL; P = .0251), Q3 (2.56-2.89 pg/mL; P = .0007), or Q4 (>=2.90 pg/mL; P = .0010) quartiles of FT3 levels. Moreover, low FT3 levels (<2.29 pg/mL) were independently associated with PSI occurrence (P = .0013). CONCLUSIONS: Low FT3 levels at admission are independently associated with PSI occurrence. PMID- 29031499 TI - MicroRNAs 15A and 16-1 Activate Signaling Pathways That Mediate Chemotaxis of Immune Regulatory B cells to Colorectal Tumors. AB - BACKGROUND & AIMS: B cells infiltrate tumors, but little is known about how they affect tumor growth and progression. microRNA15A (MIR15A or miRNA15A) and microRNA16-1 (MIR16-1 or miRNA16-1) regulate cell proliferation, apoptosis, and drug resistance. We investigated their involvement in B-cell-mediated immune suppression by colorectal tumors. METHODS: Mice with disruptions of the gene cluster that encodes MIR15A and MIR16-1 (knockout mice), and control (C57BL/B6) mice were given azoxymethane with dextran sodium sulfate (AD) to induce formation of colorectal tumors. Mice were given anti-CD20 to delete B cells, or injections of agomir to increase MIR15A and MIR16-1. Proliferation of CD8+T cells was measured by carboxyfluorescein-succinimidyl-ester analysis. Colon tissues were collected from mice and analyzed by flow cytometry, microRNA (miRNA) sequencing, and for cytokine production. Intestinal epithelial cells (IECs) were isolated and transfected with miRNA mimics, to identify their targets. We analyzed miRNA expression patterns and quantified B cells in colorectal cancer tissue microarrays derived from 90 patients who underwent surgical resection, from July 2006 through April 2008, in Shanghai, China; expression data were compared with clinical outcomes. RESULTS: Tumors that developed in knockout mice following administration of AD were larger and contained greater numbers of B cells than tumors that grew in control mice. Most of the B cells in the tumors were positive for immunoglobulin A (IgA+). IgA+ B cells expressed high levels of immune regulatory molecules (programmed death ligand 1, interleukin 10, and transforming growth factor beta), and repressed the proliferation and activation of CD8+ T cells. Levels of MIR15A and MIR16-1 were reduced in colon tumors from mice, compared with nontumor colon tissue. Incubation of IECs with IL17A reduced expression of MIR15A and MIR16-1. Transgenic expression of MIR15A and MIR16-1 in IECs decreased activation of NF-kappaB and STAT1 by reducing expression of I kappaB kinases; this resulted in reduced production of chemokine (C-X-C motif) ligands 9 and 10 and decreased chemotaxis of IgA+ B cells. Tumors in mice injected with AD and agomir grew more slowly than tumors in mice not given in agomir and contained fewer IgA+ B cells. We found a negative correlation between levels of MIR15A and MIR16-1 and numbers of IgA+B cells in human colorectal tumor tissues; high levels of MIR15A and MIR16-1 and low numbers of IgA+B cells were associated with longer survival times of patients. CONCLUSIONS: We found increased levels of MIR15A and MIR16-1 to reduce numbers of IgA+ B cells in colorectal tumor tissues and correlate with increased survival time of patients. In mice that lack MIR15A and MIR16-1, colon tumors grow more rapidly and contain increased numbers of IgA+ B cells. MIR15A and MIR16-1 appear to activate signaling pathways required for B-cell-mediated immune suppression. PMID- 29031500 TI - Transcription and Signaling Regulators in Developing Neuronal Subtypes of Mouse and Human Enteric Nervous System. AB - BACKGROUND & AIMS: The enteric nervous system (ENS) regulates gastrointestinal function via different subtypes of neurons, organized into fine-tuned neural circuits. It is not clear how cell diversity is created within the embryonic ENS; information required for development of cell-based therapies and models of enteric neuropathies. We aimed to identify proteins that regulate ENS differentiation and network formation. METHODS: We generated and compared RNA expression profiles of the entire ENS, ENS progenitor cells, and non-ENS gut cells of mice, collected at embryonic days 11.5 and 15.5, when different subtypes of neurons are formed. Gastrointestinal tissues from R26ReYFP reporter mice crossed to Sox10-CreERT2 or Wnt1-Cre mice were dissected and the 6 populations of cells were isolated by flow cytometry. We used histochemistry to map differentially expressed proteins in mouse and human gut tissues at different stages of development, in different regions. We examined enteric neuronal diversity and gastric function in Wnt1-Cre x Sox6fl/fl mice, which do not express the Sox6 gene in the ENS. RESULTS: We identified 147 transcription and signaling factors that varied in spatial and temporal expression during development of the mouse ENS. Of the factors also analyzed in human ENS, most were conserved. We uncovered 16 signaling pathways (such as fibroblast growth factor and Eph/ephrin pathways). Transcription factors were grouped according to their specific expression in enteric progenitor cells (such as MEF2C), enteric neurons (such as SOX4), or neuron subpopulations (such as SATB1 and SOX6). Lack of SOX6 in the ENS reduced the numbers of gastric dopamine neurons and delayed gastric emptying. CONCLUSIONS: Using transcriptome and histochemical analyses of the developing mouse and human ENS, we mapped expression patterns of transcription and signaling factors. Further studies of these candidate determinants might elucidate the mechanisms by which enteric stem cells differentiate into neuronal subtypes and form distinct connectivity patterns during ENS development. We found expression of SOX6 to be required for development of gastric dopamine neurons. PMID- 29031501 TI - DNA Methylation and Transcription Patterns in Intestinal Epithelial Cells From Pediatric Patients With Inflammatory Bowel Diseases Differentiate Disease Subtypes and Associate With Outcome. AB - BACKGROUND & AIMS: We analyzed DNA methylation patterns and transcriptomes of primary intestinal epithelial cells (IEC) of children newly diagnosed with inflammatory bowel diseases (IBD) to learn more about pathogenesis. METHODS: We obtained mucosal biopsies (N = 236) collected from terminal ileum and ascending and sigmoid colons of children (median age 13 years) newly diagnosed with IBD (43 with Crohn's disease [CD], 23 with ulcerative colitis [UC]), and 30 children without IBD (controls). Patients were recruited and managed at a hospital in the United Kingdom from 2013 through 2016. We also obtained biopsies collected at later stages from a subset of patients. IECs were purified and analyzed for genome-wide DNA methylation patterns and gene expression profiles. Adjacent microbiota were isolated from biopsies and analyzed by 16S gene sequencing. We generated intestinal organoid cultures from a subset of samples and genome-wide DNA methylation analysis was performed. RESULTS: We found gut segment-specific differences in DNA methylation and transcription profiles of IECs from children with IBD vs controls; some were independent of mucosal inflammation. Changes in gut microbiota between IBD and control groups were not as large and were difficult to assess because of large amounts of intra-individual variation. Only IECs from patients with CD had changes in DNA methylation and transcription patterns in terminal ileum epithelium, compared with controls. Colon epithelium from patients with CD and from patients with ulcerative colitis had distinct changes in DNA methylation and transcription patterns, compared with controls. In IECs from patients with IBD, changes in DNA methylation, compared with controls, were stable over time and were partially retained in ex-vivo organoid cultures. Statistical analyses of epithelial cell profiles allowed us to distinguish children with CD or UC from controls; profiles correlated with disease outcome parameters, such as the requirement for treatment with biologic agents. CONCLUSIONS: We identified specific changes in DNA methylation and transcriptome patterns in IECs from pediatric patients with IBD compared with controls. These data indicate that IECs undergo changes during IBD development and could be involved in pathogenesis. Further analyses of primary IECs from patients with IBD could improve our understanding of the large variations in disease progression and outcomes. PMID- 29031502 TI - Low Rates of Gastrointestinal and Non-Gastrointestinal Complications for Screening or Surveillance Colonoscopies in a Population-Based Study. AB - BACKGROUND: The full spectrum of serious non-gastrointestinal post-colonoscopy complications has not been well characterized. We analyzed rates of and factors associated with adverse post-colonoscopy gastrointestinal (GI) and non gastrointestinal events (cardiovascular, pulmonary, or infectious) attributable to screening or surveillance colonoscopy (S-colo) and non-screening or non surveillance colonoscopy (NS-colo). METHODS: We performed a population-based study of colonoscopy complications using databases from California hospital-owned and nonhospital-owned ambulatory facilities, emergency departments, and hospitals from January 1, 2005 through December 31, 2011. We identified patients who underwent S-colo (1.58 million), NS-colo (1.22 million), or low-risk comparator procedures (joint injection, aspiration, lithotripsy; arthroscopy, carpal tunnel; or cataract; 2.02 million) in California's Ambulatory Services Databases. We identified patients who developed adverse events within 30 days, and factors associated with these events, through patient-level linkage to California's Emergency Department and Inpatient Databases. RESULTS: After S-colo, the numbers of lower GI bleeding, perforation, myocardial infarction, and ischemic stroke per 10,000-persons were 5.3 (95% confidence interval [CI], 4.8-5.9), 2.9 (95% CI, 2.5 3.3), 2.5 (95% CI, 2.1-2.9), and 4.7 (95% CI, 4.1-5.2) without biopsy or intervention; with biopsy or intervention, numbers per 10,000-persons were 36.4 (95% CI, 35.1-37.6), 6.3 (95% CI, 5.8-6.8), 4.2 (95% CI, 3.8-4.7), and 9.1 (95% CI, 8.5-9.7). Rates of dysrhythmia were higher. After NS-colo, event rates were substantially higher. Most serious complications led to hospitalization, and most GI complications occurred within 14 days of colonoscopy. Ranges of adjusted odds ratios for serious GI complications, myocardial infarction, ischemic stroke, and serious pulmonary events after S-colo vs comparator procedures were 2.18 (95% CI, 2.02-2.36) to 5.13 (95% CI, 4.81-5.47), 0.67 (95% CI, 0.56-0.81) to 0.99 (95% CI, 0.83-1.19), 0.66 (95% CI, 0.59-0.75) to 1.13 (95% CI, 0.99-1.29), and 0.64 (95% CI, 0.61-0.68) to 1.05 (95% CI, 0.98-1.11). Biopsy or intervention, comorbidity, black race, low income, public insurance, and NS-colo were associated with post colonoscopy adverse events. CONCLUSIONS: In a population-based study in California, we found that following S-colo, rates of serious GI adverse events were low but clinically relevant, and that rates of myocardial infarction, stroke, and serious pulmonary events were no higher than after low-risk comparator procedures. Rates of myocardial infarction are similar to, but rates of stroke are higher than, those reported for the general population. PMID- 29031503 TI - Assessing dentists' human papillomavirus-related health literacy for oropharyngeal cancer prevention. AB - BACKGROUND: Oropharyngeal cancers related to human papillomavirus (HPV) are on the rise. Dentists may be the next group of providers participating in the prevention of HPV. The aim of this study was to assess dentists' health literacy regarding the connection of HPV and oropharyngeal cancer. METHODS: The authors conducted 4 focus groups with dentists (N = 33) during a regional dental conference in 2016. Guided by the health literacy competencies (that is, access, understand, appraise, and apply), the authors used constant comparison methods for data analysis. RESULTS: Dentists mentioned a variety of informational sources (for example, dental journals and colleagues). Knowledge about the link between HPV and oropharyngeal cancer varied among participants. Participants appraised multiple patient and practice factors when deciding to have the discussion with patients. Some dentists discussed the HPV and oropharyngeal cancer connection with patients, and most conducted secondary screenings. CONCLUSIONS: Findings indicate areas for intervention, including creating awareness of trusted informational sources, as well as increasing HPV knowledge and understanding the multiple patient (for example, age) and practice (for example, open operatories) appraisal factors. Moreover, enhancing the communication skills of dentists with patients is needed to improve HPV-related cancer prevention education. PRACTICAL IMPLICATIONS: Addressing dentists' HPV-related health literacy has the potential to improve dentists' HPV-related prevention practices, including expanding patient education about this topic and increasing HPV vaccination knowledge, ultimately contributing to the reduction of oropharyngeal cancers. PMID- 29031504 TI - [Therapeutic targeting of Notch signaling in cancer]. AB - The Notch pathway plays an essential role during embryonal development and tissue in adults. Notch signaling occurs through transmembrane receptors which undergo several proteolytic cleavages that lead to the release of the Notch intracytoplasmic domain (NICD), which in turn activates the transcription of target genes. Oncogenic alterations of Notch receptors were first identified in T acute lymphoblastic leukemia and subsequently in solid tumors and other hematological malignancies. The important role of Notch signaling in cancer makes it an interesting target for drug development. Several classes of compounds targeting Notch signaling are currently in clinical development. However, the complexity of Notch signaling as well as its importance in tissue homeostasis makes the clinical development of these therapies more complex than anticipated. Additional clinical and preclinical investigations are needed to adequately target Notch signaling in cancer therapy. PMID- 29031505 TI - [Histological and molecular classification of endometrial carcinoma and therapeutical implications]. AB - Endometrial cancer is the fourth cause of cancer in women in France and is the second most common cancer of the gynecologic cancer after breast cancer with 7275 new cases in 2012. The incidence of this neoplasm tends to increase with population aging, diabetes and obesity's augmentation. In rare cases, a hereditary factor has been described: Lynch's syndrome. The therapeutic management of the patient depends on the endometrial biopsy which specifies the histological type and the histo-prognostic grade as well as the MRI which allow the tumor staging. Within the last decade, improvement in technologies such as genomic, transcriptomic and histological analyses, allowed the establishment of new and finer classifications of endometrial carcinomas. The latest classification proposed by The Cancer Genomic Atlas (TCGA), has been made routinely applicable through the international consortium TransPORTEC. It consists of 4 groups listed from good to poor prognosis: (1) ultra-mutated "POLE"; (2) hyper-mutated "MSI"; (3) low copy number "NSMP" and (4) high number of copies "TP53 mutated" (serous-like). This integrated characterization combined with mutational data opens new opportunities for therapeutic strategies. PMID- 29031506 TI - [Cyto-histological correlation in the management of parotid gland tumors: A retrospective study of 160 cases]. AB - INTRODUCTION: The aim of this study was to correlate the cytological and histological results and evaluate the diagnostic performance of fine-needle aspiration cytology (FNAC) in the management of parotid gland tumors. METHODS: This retrospective study included 160 patients with a parotid gland tumor who underwent fine-needle aspiration and parotidectomy surgery between January 2005 and August 2016 at the Limoges university hospital center. RESULTS: On 160 fine needle aspirations performed, fine-needle aspiration diagnoses were: 77 benign lesions, 35 malignant lesions and 48 non-diagnostic cases. Final histological diagnosis revealed there were 113 benign lesions and 47 malignant lesions. A hundred and one cytological diagnoses were accurate over 112 contributive fine needle aspirations: seven false-negative cases and 4 false-positive cases were observed. The sensitivity, specificity, and accuracy were 82, 95 and 90% respectively for fine-needle aspiration, and 83, 95 and 92% respectively for association of fine-needle aspiration and magnetic resonance imaging. Diagnostic concordance between fine-needle aspiration and final histology for malignant lesions was 78%. A greater number of contributive fine-needle aspirations was observed among experimented operators. DISCUSSION: Fine-needle aspiration is a reliable, safe and effective diagnostic tool that allows good differentiation between malignant and benign diagnosis in the preoperative management of parotid gland tumors. The association of fine-needle aspiration and magnetic resonance imaging (MRI) can improve diagnostic performance. PMID- 29031507 TI - [Sport coaching for psychological and social recovery after hematological cancer: An innovative perspective]. AB - This study is a first step towards the transfer of knowledge and practices between psychological support and performance in elite sport and a patient's "social recovery" in oncology. This proposal brings together people engaged in a variety of healthcare and relationship support roles, and aims to set up a support system beyond the hospital context. It questions the ability of elite sport management and its main actors, the "Great Coaches", to contribute to the support of patients in cancer remission through an onco-coaching approach. This innovative proposal is initiated by a life coaching pilot study designed for hematologic cancer patients in remission after a hematopoietic stem cell transplantation. PMID- 29031508 TI - Specialist nurses' experiences when caring for preverbal children in pain in the prehospital context in Sweden. PMID- 29031510 TI - Pain and consciousness. AB - The aversive experience we call "pain" results from the coordinated activation of multiple brain areas, commonly described as a "pain matrix". This is not a fixed arrangement of structures but rather a fluid system composed of several interacting networks: A 'nociceptive matrix' includes regions receiving input from ascending nociceptive systems, and ensures the bodily characteristics of physical pain. A further set of structures receiving secondary input supports the 'salience' attributes of noxious stimuli, triggers top-down cognitive controls, and -most importantly- ensures the passage from pre-conscious nociception to conscious pain. Expectations and beliefs can still modulate the conscious experience via activity in supramodal regions with widespread cortical projections such as the ventral tegmental area. Intracortical EEG responses in humans show that nociceptive cortical processing is initiated in parallel in sensory, motor and limbic areas; it progresses rapidly to the recruitment of anterior insular and fronto-parietal networks, and finally to the activation of perigenual, posterior cingulate and hippocampal structures. Functional connectivity between sensory and high-level networks increases during the first second post-stimulus, which may be determinant for access to consciousness. A model is described, progressing from unconscious sensori-motor and limbic processing of spinothalamic and spino-parabrachial input, to an immediate sense of awareness supported by coordinated activity in sensorimotor and fronto-parieto insular networks, and leading to full declarative consciousness through integration with autobiographical memories and self-awareness, involving posterior cingulate and medial temporal areas. This complete sequence is only present during full vigilance states. We contend, however, that even in unconscious subjects, repeated limbic and vegetative activation by painful stimuli via spino-amygdalar pathways can generate implicit memory traces and stimulus-response abnormal sequences, possibly contributing to long-standing anxiety or hyperalgesic syndromes in patients surviving coma. PMID- 29031509 TI - Mining Filarial Genomes for Diagnostic and Therapeutic Targets. AB - Filarial infections of humans cause some of the most important neglected tropical diseases. The global efforts for eliminating filarial infections by mass drug administration programs may require additional tools (safe macrofilaricidal drugs, vaccines, and diagnostic biomarkers). The accurate and sensitive detection of viable parasites is essential for diagnosis and for surveillance programs. Current community-wide treatment modalities do not kill the adult filarial worms effectively; hence, there is a need to identify and develop safe macrofilaricidal drugs. High-throughput sequencing, mass spectroscopy methods and advances in computational biology have greatly accelerated the discovery process. Here, we describe post-genomic developments toward the identification of diagnostic biomarkers and drug targets for the filarial infection of humans. PMID- 29031511 TI - The mechanical fingerprint of murine excisional wounds. AB - : A multiscale mechanics approach to the characterization of murine excisional wounds subjected to uniaxial tensile loading is presented. Local strain analysis at a physiological level of tension uncovers the presence of two distinct regions within the wound: i) a very compliant peripheral cushion and ii) a core area undergoing modest deformation. Microstructural visualizations of stretched wound specimens show negligible engagement of the collagen located in the center of a 7 day old wound; fibers remain coiled despite the applied tension, confirming the existence of a mechanically isolated wound core. The compliant cushion located at the wound periphery appears to protect the newly-formed tissue from excessive deformation during the phase of new tissue formation. The early remodeling phase (day 14) is characterized by a restored mechanical connection between far field and wound center. The latter remains less deformable, a characteristic possibly required for cell activities during tissue remodeling. The distribution of fibrillary collagens at these two time points corresponds well to the identified heterogeneity of mechanical properties of the wound region. This novel approach provides new insight into the mechanical properties of wounded skin and will be applicable to the analysis of compound-treated wounds or wounds in genetically modified tissue. STATEMENT OF SIGNIFICANCE: Biophysical characterization of healing wounds is crucial to assess the recovery of the skin barrier function and the associated mechanobiological processes. For the first time, we performed highly resolved local deformation analysis to identify mechanical characteristics of the wound and its periphery. Our results reveal the presence of a compliant cushion surrounding a stiffer wound core; we refer to this heterogeneous mechanical behavior as "mechanical fingerprint" of the wound. The mechanical response is shown to progress towards that of the intact skin as healing takes place. Histology and multiphoton microscopy suggest that wounded skin recovers its mechanical function via progressive reconnection of the newly-deposited collagen fibers with the surrounding intact matrix. PMID- 29031512 TI - Current antiviral drugs and their analysis in biological materials - Part II: Antivirals against hepatitis and HIV viruses. AB - This review is a Part II of the series aiming to provide comprehensive overview of currently used antiviral drugs and to show modern approaches to their analysis. While in the Part I antivirals against herpes viruses and antivirals against respiratory viruses were addressed, this part concerns antivirals against hepatitis viruses (B and C) and human immunodeficiency virus (HIV). Many novel antivirals against hepatitis C virus (HCV) and HIV have been introduced into the clinical practice over the last decade. The recent broadening portfolio of these groups of antivirals is reflected in increasing number of developed analytical methods required to meet the needs of clinical terrain. Part II summarizes the mechanisms of action of antivirals against hepatitis B virus (HBV), HCV, and HIV, their use in clinical practice, and analytical methods for individual classes. It also provides expert opinion on state of art in the field of bioanalysis of these drugs. Analytical methods reflect novelty of these chemical structures and use by far the most current approaches, such as simple and high-throughput sample preparation and fast separation, often by means of UHPLC-MS/MS. Proper method validation based on requirements of bioanalytical guidelines is an inherent part of the developed methods. PMID- 29031513 TI - Effective cues for accelerating young drivers' time to transfer control following a period of conditional automation. AB - OBJECTIVE: During conditional automated driving, a transition from the automated driving suite to manual control requires the driver to take over control at a moment's notice. Thus, it is critical that a driver be made situationally aware as quickly as possible in those conditions where he or she may not be paying full attention. Recent research suggests that specific cues about upcoming hazards (e.g., "crosswalk ahead") can increase the drivers' situation awareness during these safety-critical take-over situations when compared with a general cue ("take over control"). The current study examines whether this increased situation awareness which occurs as a result of more specific cues translates into improved hazard mitigation performance within the same limited time window. METHOD: Fifty-seven drivers were randomly assigned to one of five between subjects conditions (one control condition and four experimental auditory cue conditions) that varied in the specificity of information provided about an upcoming hazard. The four experimental conditions included a period of conditional automated driving where the driver was engaged in a driving irrelevant task and looked away from the forward roadway prior to a take-over request. Drivers in the fifth condition had no cue and drove manually throughout. The same six simulator scenarios were used in all five conditions to evaluate how well the driver mitigated a hazard. The average velocity, standard deviation of velocity, and average absolute acceleration were recorded along with the glance behaviors of drivers. RESULTS: In general, during the 4s prior to a latent hazard (following the alerting cues in the automated driving conditions), the more likely a driver was to glance towards a latent hazard, the more likely the driver was to reduce his or her speed. Moreover, analyses focusing solely on hazard mitigation behavior revealed patterns that mirrored the glance behavior results. Specifically, drivers that were presented with cues that described the environments in which hazards were likely to occur were more likely to demonstrate vehicle behaviors that were consistent with speed reductions (lower velocity, higher speed variability, and higher absolute acceleration) than were drivers who were presented general cues or cues about the identity of the upcoming hazards. CONCLUSION: Even in as little as 4s prior to a potential hazard, cues that inform the driver of the environment in which the hazard is likely to occur increase the likelihood that the driver mitigates the crash compared with drivers who are provided general information or threat identity information. PMID- 29031514 TI - Erratum. PMID- 29031516 TI - Growth of adult spinal cord in knifefish: Development and parametrization of a distributed model. AB - The study of indeterminate-growing organisms such as teleost fish presents a unique opportunity for improving our understanding of central nervous tissue growth during adulthood. Integrating the existing experimental data associated with this process into a theoretical framework through mathematical or computational modeling provides further research avenues through sensitivity analysis and optimization. While this type of approach has been used extensively in investigations of tumor growth, wound healing, and bone regeneration, the development of nervous tissue has been rarely studied within a modeling framework. To address this gap, the present work introduces a distributed model of spinal cord growth in the knifefish Apteronotus leptorhynchus, an established teleostean model of adult growth in the central nervous system. The proposed model incorporates two mechanisms, cell proliferation by active stem/progenitor cells and cell drift due to population pressure, both of which are subject to global constraints. A coupled reaction-diffusion equation approach was adopted to represent the densities of actively-proliferating and non-proliferating cells along the longitudinal axis of the spinal cord. Computer simulations using this model yielded biologically-feasible growth trajectories. Subsequent comparisons with whole-organism growth curves allowed the estimation of previously-unknown parameters, such as relative growth rates. PMID- 29031515 TI - Association of Antidementia Drugs and Mortality in Community-Dwelling Frail Older Patients With Dementia: The Role of Mortality Risk Assessment. AB - OBJECTIVE: To evaluate whether treatment with antidementia drugs is associated with reduced mortality in older patients with different mortality risk at baseline. DESIGN: Retrospective. SETTING: Community-dwelling. PARTICIPANTS: A total of 6818 older people who underwent a Standardized Multidimensional Assessment Schedule for Adults and Aged Persons (SVaMA) evaluation to determine accessibility to homecare services or nursing home admission from 2005 to 2013 in the Padova Health District, Italy were included. MEASUREMENTS: Mortality risk at baseline was calculated by the Multidimensional Prognostic Index (MPI), based on information collected with the SVaMA. Participants were categorized to have mild (MPI-SVaMA-1), moderate (MPI-SVaMA-2), and high (MPI-SVaMA-3) mortality risk. Propensity score-adjusted hazard ratios (HR) of 2-year mortality were calculated according to antidementia drug treatment. RESULTS: Patients treated with antidementia drugs had a significant lower risk of death than untreated patients (HR 0.82; 95% confidence interval [CI] 0.73-0.92 and 0.56; 95% CI 0.49-0.65 for patients treated less than 2 years and more than 2 years treatment, respectively). After dividing patients according to their MPI-SVaMA grade, antidementia treatment was significantly associated with reduced mortality in the MPI-SVaMA-1 mild (HR 0.71; 95% CI 0.54-0.92) and MPI-SVaMA-2 moderate risk (HR 0.61; 95% CI 0.40-0.91, matched sample), but not in the MPI-SVaMA-3 high risk of death. CONCLUSIONS: This large community-dwelling patient study suggests that antidementia drugs might contribute to increased survival in older adults with dementia with lower mortality risk. PMID- 29031517 TI - Promotion of cooperation in evolutionary game dynamics with local information. AB - In this paper, we propose a strategy-updating rule driven by local information, which is called Local process. Unlike the standard Moran process, the Local process does not require global information about the strategic environment. By analyzing the dynamical behavior of the system, we explore how the local information influences the fixation of cooperation in two-player evolutionary games. Under weak selection, the decreasing local information leads to an increase of the fixation probability when natural selection does not favor cooperation replacing defection. In the limit of sufficiently large selection, the analytical results indicate that the fixation probability increases with the decrease of the local information, irrespective of the evolutionary games. Furthermore, for the dominance of defection games under weak selection and for coexistence games, the decreasing of local information will lead to a speedup of a single cooperator taking over the population. Overall, to some extent, the local information is conducive to promoting the cooperation. PMID- 29031518 TI - Investigation of nonlinear epidemiological models for analyzing and controlling the MERS outbreak in Korea. AB - Much concern has arisen regarding serious epidemics due to the Middle East Respiratory Syndrome (MERS) coronavirus. The first MERS case of Korea was reported on 20 May 2015, and since then, the MERS outbreak in Korea has resulted in hundreds of confirmed cases and tens of deaths. Deadly infectious diseases such as MERS have significant direct and indirect social impacts, which include disease-induced mortality and economic losses. Also, a delayed response to the outbreak and underestimating its danger can further aggravate the situation. Hence, an analysis and establishing efficient strategies for preventing the propagation of MERS is a very important and urgent issue. In this paper, we propose a class of nonlinear susceptible-infectious-quarantined (SIQ) models for analyzing and controlling the MERS outbreak in Korea. For the SIQ based ordinary differential equation (ODE) model, we perform the task of parameter estimation, and apply optimal control theory to the controlled SIQ model, with the goal of minimizing the infectious compartment population and the cost of implementing the quarantine and isolation strategies. Simulation results show that the proposed SIQ model can explain the observed data for the confirmed cases and the quarantined cases in the MERS outbreak very well, and the number of the MERS cases can be controlled reasonably well via the optimal control approach. PMID- 29031519 TI - Every successful journal relies on its reviewers. PMID- 29031520 TI - Executive function: Responses to aerobic exercise in Alzheimer's disease. AB - Executive dysfunction occurs early and is prevalent in Alzheimer's disease (AD). This study tested the ability of different measures for identifying changes in executive function and the effect of 6-months of aerobic exercise on executive function in older adults with mild to moderate AD, using a single-group, repeated measures design (n = 28, age 78.1 +/- 8.37). Factor analysis and linear mixed effects model analyses showed that individually the Exit Interview-25 (EXIT-25), Behavioral Dyscontrol Scale (BDS), and Golden Stroop test were the preferred instruments for measuring changes in executive function in the sample. The COWAT and TMT had substantial floor effects limiting their ability to identify changes in executive function. A single latent factor was sufficient to describe the heterogeneity of executive function. Over 6 months, aerobic exercise maintained executive function (effect size = -0.11, -0.24, -0.27, and -0.21 for the EXIT-25, BDS, Stroop, and latent factor, respectively). Decline in the latent factor (effect size = -0.21, p = 0.06) was minimal and comparable to that in global cognition (effect size = -0.20, p = 0.34). Aerobic exercise may be effective on maintaining executive function in AD. PMID- 29031521 TI - Surgical Thoracic Transplant Training: Super Fellowship-Is It Super? AB - OBJECTIVE: The quality of training provided to thoracic transplant fellows is a critical step in the care of complex patients undergoing transplant. The training varies since it is not an accreditation council for graduate medical education accredited fellowship. METHOD: A total of 104 heart or lung transplant program directors throughout the United States were sent a survey of 24 questions focusing on key aspects of training, fellowship training content and thoracic transplant job satisfaction. Out of the 104 programs surveyed 45 surveys (43%) were returned. RESULTS: In total, 26 programs offering a transplant fellowship were included in the survey. Among these programs 69% currently have fellows of which 56% are American Board of Thoracic Surgery board eligible. According to the United Network for Organ Sharing (UNOS) requirements, 46% of the programs do not meet the requirements to be qualified as a primary heart transplant surgeon. A total of 23% of lung transplant programs also perform less than the UNOS minimum requirements. Only 24% have extra-surgical curriculum. Out of the participating programs, only 38% of fellows secured a job in a hospital setting for performing transplants. An astounding 77% of replies site an unpredictable work schedule as the main reason that makes thoracic transplant a less than favorable profession among new graduates. Long hours were also a complaint of 69% of graduates who agreed that their personal life is affected by excessive work hours. CONCLUSION: Annually, almost half of all thoracic transplant programs perform fewer than the UNOS requirements to be a primary thoracic surgeon. This results in a majority of transplant fellows not finding a suitable transplant career. The current and future needs for highly qualified thoracic transplant surgeons will not be met through our existing training mechanisms. PMID- 29031522 TI - Video-Based Surgical Learning: Improving Trainee Education and Preparation for Surgery. AB - BACKGROUND: Since the end of the XIX century, teaching of surgery has remained practically unaltered until now. With the dawn of video-assisted laparoscopy, surgery has faced new technical and learning challenges. Due to technological advances, from Internet access to portable electronic devices, the use of online resources is part of the educational armamentarium. In this respect, videos have already proven to be effective and useful, however the best way to benefit from these tools is still not clearly defined. AIMS: To assess the importance of video based learning, using an electronic questionnaire applied to residents and specialists of different surgical fields. METHODS: Importance of video-based learning was assessed in a sample of 141 subjects, using a questionnaire distributed by a GoogleDoc online form. RESULTS: We found that 98.6% of the respondents have already used videos to prepare for surgery. When comparing video sources by formation status, residents were found to use Youtube significantly more often than specialists (p < 0.001). Additionally, residents placed more value on didactic illustrations and procedure narration than specialists (p < 0.001). On the other hand, specialists prized surgeon's technical skill and the presence of tips and tricks much more than residents (p < 0.001). CONCLUSION: Video-based learning is currently a hallmark of surgical preparation among residents and specialists working in Portugal. Based on these findings we believe that the creation of quality and scientifically accurate videos, and subsequent compilation in available video-libraries appears to be the future landscape for video-based learning. PMID- 29031523 TI - 6-Hydroxy-3-O-methyl-kaempferol 6-O-glucopyranoside potentiates the anti proliferative effect of interferon alpha/beta by promoting activation of the JAK/STAT signaling by inhibiting SOCS3 in hepatocellular carcinoma cells. AB - Suppressor of cytokine signaling 3 (SOCS3) is a key negative regulator of type I interferon (IFN alpha/beta) signaling. Inhibition of SOCS3 by small molecules may be a new strategy to enhance the efficacy of type I IFN and reduce its side effects. We established a cell-based screening assay using human hepatoma HepG2 cells stably transfected with a plasmid wherein the luciferase reporter activity was propelled by interferon alpha-stimulated response element (ISRE), which is a motif specifically recognized by type I IFN-induced activation of Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathway. After screening our chemical library, 6-hydroxy-3-O-methyl-kaempferol 6-O glucopyranoside (K6G) was identified to be a potent activator of type I IFN with EC50 value of 3.33+/-0.04MUM. K6G enhanced the phosphorylation of JAK1, Tyk2, and STAT1/2 but decreased the phosphorylation of STAT3. K6G also promoted endogenous IFN-alpha-regulated genes expression. More interestingly, K6G significantly decreased the expression of SOCS3 without affecting the expression of SOCS1. Furthermore, K6G enhanced the anti-proliferative effect of IFN-alpha on hepatocellular carcinoma (HCC) cells. These results suggested that K6G potentiated the inhibitory effect of IFN-alpha on HCC cell proliferation through activation of the JAK/STAT signaling pathway by inhibiting SOCS3 expression. K6G warrants further investigation as a novel therapeutic method to enhance the efficacy of IFN-alpha/beta. PMID- 29031524 TI - Analysis of pelvic strain in different gait configurations in a validated cohort of computed tomography based finite element models. AB - The pelvis functions to transmit upper body loads to the lower limbs and is critical in human locomotion. Semi-automated, landmark-based finite element (FE) morphing and mapping techniques eliminate the need for segmentation and have shown to accelerate the generation of multiple specimen-specific pelvic FE models to enable the study of pelvic mechanical behaviour. The purpose of this research was to produce an experimentally validated cohort of specimen-specific FE models of the human pelvis and to use this cohort to analyze pelvic strain patterns during gait. Using an initially segmented specimen-specific pelvic FE model asa source model, four more specimen-specific pelvic FE models were generated from target clinical CT scans using landmark-based morphing and mapping techniques. FE strains from the five models were compared to the experimental strains obtained from cadaveric testing via linear regression analysis, (R2 values ranging from 0.70 to 0.93). Inter-specimen variability in FE strain distributions was seen among the five specimen-specific pelvic FE models. The validated cohort of specimen-specific pelvic FE models was utilized to examine pelvic strains at different phases of the gait cycle. Each validated specimen-specific FE model was reconfigured into gait cycle phases representing heel-strike/heel-off and midstance/midswing. No significant difference was found in the double-leg stance and heel-strike/heel-off models (p=0.40). A trend was observed between double-leg stance and midstance/midswing models (p=0.07), and a significant difference was found between heel-strike/heel-off models and midstance/midswing models (p=0.02). Significant differences were also found in comparing right vs. left models (heel strike/heel-off p=0.14, midstance/midswing p=0.04). PMID- 29031525 TI - Impact of CLSI and EUCAST Cefepime breakpoint changes on the susceptibility reporting for Enterobacteriaceae. AB - OBJECTIVE: We analyzed the effects of different cefepime MIC breakpoints on Enterobacteriaceae cefepime susceptibility and the presence of AmpC and extended spectrum beta-lactamase (ESBL) genes within the cefepime MIC interpretative categories. METHODS: Using Enterobacteriaceae susceptibility data from 2013 comparisons of MIC breakpoints were performed using Pearson's chi-squared test. Molecular testing on a subset of isolates was done. RESULTS: Among 3784 non duplicate clinical isolates, cefepime susceptibility decreased from 97.6% to 96.1% to 93.7% for CLSI 2013, CLSI 2014, and EUCAST 2011, respectively. In ceftriaxone non-susceptible isolates, cefepime susceptibility decreased from 79% to 66% (P<0.0001) using CLSI 2013 and 2014, respectively, which was greater and statistically significant for Escherichia coli and Klebsiella spp. but not for Enterobacter spp. (P=0.06). Isolates with MIC <=1MUg/mL more often harbored AmpC (77%) than ESBL (18%) genes. CONCLUSIONS: Lower cefepime MIC breakpoints decrease cefepime susceptibility for isolates harboring ESBLs, while sparing the majority of those with AmpCs. PMID- 29031527 TI - Erratum. PMID- 29031526 TI - The Temporal Artery Island Flap: A Good Reconstructive Option for Small to Medium Sized Facial Defects. AB - PURPOSE: The reconstruction of facial defects is esthetically vital because of the unique skin color and texture of the face. The aim of this study was to show the utility of different temporal artery island flap designs for the reconstruction of upper and middle facial defects without contrast to the color and texture of the face. MATERIALS AND METHODS: This study is a retrospective case series conducted from November 2004 through May 2015. Patients older than 18 years with upper and middle facial defects smaller than 5 cm were included. RESULTS: The temporal artery island flap was used in 34 patients (21 men and 13 women). The etiologies were skin tumor in 17 patients, trauma in 10 patients, and burns in 7 patients. Major defect localization was in the temporal area in 12 patients, followed by the ear in 9 patients, the cheek in 6 patients, the eyebrow in 4 patients, and the nose in 3 patients. Flap designs consisted of the antegrade-flow island flap, the V-Y flap, and reverse-flow island flap in 23, 7, and 4 patients, respectively. All flaps survived completely except for 1 partial flap necrosis. Scars in the donor areas were inconspicuous. Patients' median age was 47.5 years (quartiles, 40.75 to 54), 61.8% were men, and median duration of follow-up was 11 months (range, 6 to 18 months). CONCLUSIONS: The temporal artery island flap could be a good option for the closure of minor to medium-size defects of the upper and middle face because of its good color and texture match, constant and reliable pedicle, wide pivotal movement, low donor site morbidity, and reverse-flow pattern. PMID- 29031528 TI - A Rare, Unusual Presentation of Primary Tuberculosis in the Temporomandibular Joint. AB - Tuberculosis (TB) is a very common health problem in developing nations such as India. It can present as its primary form or as secondary forms (extrapulmonary TB). Maxillofacial manifestations of TB compose nearly 10% of all extrapulmonary manifestations of the disease. Extrapulmonary TB involving the maxillofacial region is very rare and can present in any tissues in this region. These infections generally involve the head and neck through hematogenous or lymphatic routes. Very few cases of primary TB of the temporomandibular joint (TMJ) have been reported in the literature. The presentation of TB infection of the TMJ can resemble arthritis, osteomyelitis, or any other kind of chronic joint disease. It is very important to diagnose this disease at an early stage. If left untreated, it can prove fatal within 5 years in more than half the cases. Therefore, early diagnosis and management of these cases is critical. This article describes a case of primary TB of the TMJ that presented as a preauricular swelling. PMID- 29031529 TI - Enhanced Surgical Outcomes in Patients With Skeletal Class III Facial Asymmetry by 3-Dimensional Surgical Simulation. AB - PURPOSE: With the advance of image fusion techniques, the creation of 3 dimensional (3D) virtual head and 3D surgical simulations has provided previews of surgical procedures. The aim of this study was to investigate the surgical outcomes in patients receiving orthognathic surgery (OGS) with the guidance of 3D computer-assisted surgical simulation. PATIENTS AND METHODS: The study included 34 consecutive patients (15 men and 19 women; age, 18.1 to 33.0 yr) with skeletal Class III facial asymmetry who underwent bimaxillary OGS. One-week postoperative cone-beam computed tomographic craniofacial images (Ta) were constructed and superimposed on preoperative simulated virtual images (Ts) at the cranial base and surfaces of the frontal and periorbital regions. The 3D cephalometric landmarks were measured relative to 3 reference planes. The outcomes among different experience levels of surgeons also were compared. RESULTS: Although the mean values between Ta and Ts were small, statistical differences were observed in the center of maxillary and mandibular incisors and the B point relative to the midline and in the maxillary first molar in vertical distances, sagittal dentoskeletal dimensions, and pitch angles. The root mean square deviations (RMSDL) of measurement variables relative to center landmark accuracy were 1.5 and less than 2 mm at the maxilla and mandible, respectively. RMSDL greater than 2 mm was located at the maxillary first molar in the vertical distance and in the sagittal dimension at the anterior nasal spine and B point. Variables related to centering the midline structures were highly inter-related. The roll angle deviation was associated with centering the midline landmarks. The yaw angle deviation was not associated with midline correction. CONCLUSION: With guidance from 3D surgical simulation, surgeons could achieve similar outcomes to correct facial asymmetry regardless of their years of practice. PMID- 29031530 TI - Human torque is not present in chimpanzee brain. AB - We searched for positional brain surface asymmetries measured as displacements between corresponding vertex pairs in relation to a mid-sagittal plane in Magnetic Resonance (MR) images of the brains of 223 humans and 70 chimpanzees. In humans deviations from symmetry were observed: 1) a Torque pattern comprising right-frontal and left-occipital "petalia" together with downward and rightward "bending" of the occipital extremity, 2) leftward displacement of the anterior temporal lobe and the anterior and central segments of superior temporal sulcus (STS), and 3) posteriorly in the position of left occipito-temporal surface accompanied by a clockwise rotation of the left Sylvian Fissure around the left right axis. None of these asymmetries was detected in the chimpanzee, nor was associated with a sex difference. However, 4) an area of cortex with its long axis parallel to the olfactory tract in the orbital surface of the frontal lobe was found in humans to be located higher on the left in females and higher on the right in males. In addition whereas the two hemispheres of the chimpanzee brain are equal in extent in each of the three dimensions of space, in the human brain the left hemisphere is longer (p = 3.6e-12), and of less height (p = 1.9e-3), but equal in width compared to the right. Thus the asymmetries in the human brain are potential correlates of the evolution of the faculty of language. PMID- 29031531 TI - A functional connectivity-based neuromarker of sustained attention generalizes to predict recall in a reading task. AB - Sustaining attention to the task at hand is a crucial part of everyday life, from following a lecture at school to maintaining focus while driving. Lapses in sustained attention are frequent and often problematic, with conditions such as attention deficit hyperactivity disorder affecting millions of people worldwide. Recent work has had some success in finding signatures of sustained attention in whole-brain functional connectivity (FC) measures during basic tasks, but since FC can be dynamic and task-dependent, it remains unclear how fully these signatures would generalize to a more complex and naturalistic scenario. To this end, we used a previously defined whole-brain FC network - a marker of attention that was derived from a sustained attention task - to predict the ability of participants to recall material during a free-viewing reading task. Though the predictive network was trained on a different task and set of participants, the strength of FC in the sustained attention network predicted reading recall significantly better than permutation tests where behavior was scrambled to simulate chance performance. To test the generalization of the method used to derive the sustained attention network, we applied the same method to our reading task data to find a new FC network whose strength specifically predicts reading recall. Even though the sustained attention network provided significant prediction of recall, the reading network was more predictive of recall accuracy. The new reading network's spatial distribution indicates that reading recall is highest when temporal pole regions have higher FC with left occipital regions and lower FC with bilateral supramarginal gyrus. Right cerebellar to right frontal connectivity is also indicative of poor reading recall. We examine these and other differences between the two predictive FC networks, providing new insight into the task-dependent nature of FC-based performance metrics. PMID- 29031533 TI - Structural changes in brain morphology induced by brief periods of repetitive sensory stimulation. AB - There is a growing interest in identifying the neural mechanisms by which the human brain allows for improving performance. Tactile perceptual measurements, e.g. two-point discrimination (2ptD), can be used to investigate neural mechanisms of perception as well as perceptual improvement. Improvement can be induced in a practice-independent manner, e.g. in the tactile domain through repetitive somatosensory stimulation (rSS). With respect to tactile perception, the role of cortical excitability and activation within the somatosensory cortex has been investigated extensively. However, the role of structural properties, such as regional gray matter (GM) volume, is unknown. Using high resolution imaging and voxel-based morphometry (VBM), we sought to investigate how regional GM volume relates to individual 2ptD performance. Furthermore, we wanted to determine if electrical rSS has an influence on regional GM volume. 2ptD thresholds of the index fingers were assessed bilaterally. High-resolution (1 mm3), T1-weighted images were obtained using a 3T scanner pre-and post stimulation. RSS was applied for 45 min to the dominant right hand, specifically to the fingertips of all fingers. At baseline, performance in the 2ptD task was associated with regional GM volume in the thalamus, primary somatosensory cortex, and primary visual cortex (negative association). After 45 min of rSS, we observed an improvement in 2ptD of the stimulated hand, whereas no improvement in tactile performance was seen on the non-stimulated side. These perceptual changes were accompanied by an increase in GM volume in the left somatosensory cortex and the degree of improvement correlated with GM volume changes in the insular cortex. Our results show that structural changes in the brain, specifically in regions receiving afferent input from the stimulated body site can be induced via a short-term intervention lasting only 45 min. However, the neurobiological correlates of these changes and the dynamics need to be further elucidated. PMID- 29031532 TI - Neuroimaging of vascular reserve in patients with cerebrovascular diseases. AB - Cerebrovascular reactivity, defined broadly as the ability of brain parenchyma to adjust cerebral blood flow in response to altered metabolic demand or a vasoactive stimulus, is being measured with increasing frequency and may have a use for portending new or recurrent stroke risk in patients with cerebrovascular disease. The purpose of this review is to outline (i) the physiological basis of variations in cerebrovascular reactivity, (ii) available approaches for measuring cerebrovascular reactivity in research and clinical settings, and (iii) clinically-relevant cerebrovascular reactivity findings in the context of patients with cerebrovascular disease, including atherosclerotic arterial steno occlusion, non-atherosclerotic arterial steno-occlusion, anemia, and aging. Literature references summarizing safety considerations for these procedures and future directions for standardizing protocols and post-processing procedures across centers are presented in the specific context of major unmet needs in the setting of cerebrovascular disease. PMID- 29031534 TI - Salidroside alleviates high glucose-induced oxidative stress and extracellular matrix accumulation in rat glomerular mesangial cells by the TXNIP-NLRP3 inflammasome pathway. AB - Diabetic nephropathy (DN) is a metabolic disease characterized by mesangial cell proliferation and extracellular matrix (ECM) accumulation. Salidroside (SAL) is the major ingredient in Rhodiola rosea and possesses beneficial effects on DN. This study aimed to evaluate the effect of SAL on high glucose (HG)-induced oxidative stress and ECM accumulation and the underlying mechanism. Rat glomerular mesangial cells HBZY-1 were induced by high glucose (HG) in the presence or absence of SAL. Cell proliferation was measured by CCK-8 assay. The reactive oxygen species (ROS) level, malondialdehyde (MDA) level and superoxide dismutase (SOD) activity were detected to evaluate oxidative stress. The expression levels of ECM proteins including fibronectin (FN) and type IV collagen (Coll IV) were detected by qRT-PCR and western blot analysis. The expressions of thioredoxin-interacting protein (TXNIP), nod-like receptor protein 3 (NLRP3), apoptosis-associated speck-like protein containing CARD (ASC), and caspase-1 were assessed by western blot. Si-TXNIP or si-NC was transfected into HBZY-1 cells to inhibit TXNIP-NLRP3 inflammasome pathway. The results showed that SAL treatment alleviated HG-induced cell proliferation. SAL reduced the levels of ROS and MDA, and induced the SOD activity. Besides, the mRNA and protein expressions of FN and Coll IV were decreased by SAL. The expression levels of TXNIP, NLRP3, ASC, and caspase-1 were reduced in the SAL treated cells. In addition, TXNIP knockdown inhibited TXNIP-NLRP3 inflammasome activation and suppressed HG-induced cell proliferation, oxidative stress, and ECM accumulation. In conclusion, SAL alleviated HG-induced oxidative stress and ECM accumulation in rat glomerular mesangial cells by the TXNIP-NLRP3 inflammasome pathway. PMID- 29031535 TI - Baicalin protects AML-12 cells from lipotoxicity via the suppression of ER stress and TXNIP/NLRP3 inflammasome activation. AB - Baicalin (BA) is an active flavonoid compound originating from the root of Scutellaria baicalensis Georgi that has been reported to exert anti-inflammation and anti-oxidant effects in liver diseases with a long history. However, its protective and regulatory mechanisms on palmitic acid (PA) induced hepatocyte lipotoxicity remain elusive. In the present work, we investigated the cytoprotective effects of BA in AML-12 hepatocytes against lipotoxicity by inhibiting ER stress, oxidative stress and apoptosis. Our results demonstrated that ER stress was induced by 400 MUM PA in AML-12 cells with elevated expression of ER stress marker IRE1alpha hyperphosphorylation. BA at 12.5 MUM and 25 MUM effectively inhibited the expression of p-IRE1alpha as TUDCA. Flow cytometry analysis and immunofluorescence staining revealed that PA-induced ROS and cell apoptosis were reversed by BA. Furthermore, western blotting revealed that PA challenged expressions of TXNIP and NLRP3 were dramatically suppressed by BA and TUDCA, suggesting that BA inhibited ER stress through a TXNIP/NLRP3 pathway. Overall, our results indicate that BA alleviates PA-induced cytotoxicity in AML 12 cells via suppression of ER stress and TXNIP/NLRP3 inflammasome activation. These results provide a possible basis of the underlying mechanism and a new insight into the application for BA in the treatment of NAFLD. PMID- 29031536 TI - Extraction of carboxylic acid-containing diterpenoids from Dodonaea viscosa via pressurised hot water extraction. AB - Pressurised hot water extraction (PHWE) was employed to effect the extraction of two carboxylic acid-containing ent-labdane diterpenoids from Dodonaea viscosa. The different extraction profile provided by PHWE in this case suggests that this recently developed method also has applications as a complementary tool for natural products extraction. PMID- 29031537 TI - Silybin counteracts doxorubicin resistance by inhibiting GLUT1 expression. AB - Despite significant advances in the diagnosis and treatment of cancer, the development of drug resistance still remains one of the principal causes that hampers the effectiveness of the therapy. Emerging evidences support the idea that the dysregulated metabolism could be related to drug resistance. The major goal of this study was to target cancer metabolic pathways using new pharmacological approaches coming from natural sources in order to possibly prevent or overcome this phenomenon. Firstly, the metabolic profile of human colorectal adenocarcinoma cells sensitive (LoVo WT) and resistant to doxorubicin (LoVo DOX) was delineated demonstrating that resistant cells remodel their metabolism toward a glycolytic phenotype. In particular it was observed that doxorubicin-resistant cancer cells exhibit an increased dependency from glucose for their survival, associated with overexpression of the glycolytic pathway. Moreover, both GLUT1 mRNA and protein expression significantly increased in LoVo DOX cells. Given the results about the metabolic profile, silybin, modulator of GLUTs, was selected as potential candidate to overcome doxorubicin resistance and, intriguingly, data revealed not only that silybin is more active in resistant cells than in wild type cells, but also that the combined treatment with doxorubicin and silybin presents a synergistic effect in LoVo DOX cells. Although many unanswered questions still remain about the molecular mechanism of silybin, these data suggest that targeting GLUTs may be a good strategy to restore doxorubicin sensitivity and elude drug resistance. PMID- 29031538 TI - Everyday stress response targets in the science of behavior change. AB - Stress is an established risk factor for negative health outcomes, and responses to everyday stress can interfere with health behaviors such as exercise and sleep. In accordance with the Science of Behavior Change (SOBC) program, we apply an experimental medicine approach to identifying stress response targets, developing stress response assays, intervening upon these targets, and testing intervention effectiveness. We evaluate an ecologically valid, within-person approach to measuring the deleterious effects of everyday stress on physical activity and sleep patterns, examining multiple stress response components (i.e., stress reactivity, stress recovery, and stress pile-up) as indexed by two key response indicators (negative affect and perseverative cognition). Our everyday stress response assay thus measures multiple malleable stress response targets that putatively shape daily health behaviors (physical activity and sleep). We hypothesize that larger reactivity, incomplete recovery, and more frequent stress responses (pile-up) will negatively impact health behavior enactment in daily life. We will identify stress-related reactivity, recovery, and response in the indicators using coordinated analyses across multiple naturalistic studies. These results are the basis for developing a new stress assay and replicating the initial findings in a new sample. This approach will advance our understanding of how specific aspects of everyday stress responses influence health behaviors, and can be used to develop and test an innovative ambulatory intervention for stress reduction in daily life to enhance health behaviors. PMID- 29031539 TI - Fetal surgery for myelomeningocele: After the Management of Myelomeningocele Study (MOMS). AB - Myelomeningocele (MMC) is the most frequently occurring congenital abnormality of the central nervous system and leads to significant physical disabilities. Historically treatment involved postnatal closure with management of the associated sequelae including ventricular shunting. The mechanism of neurologic damage that begins with abnormal neurulation followed by continued injury over the course of gestation made MMC a plausible candidate for in-utero surgical repair. Animal and early human studies demonstrated the feasibility of fetal closure. The benefit of in-utero closure was debated until the results of the prospective randomized multicenter Management of Myelomeningocele Study (MOMS trial) were published, demonstrating a decreased need for shunting, reversal of hindbrain herniation, and better neurologic function in the prenatal repair group compared to postnatal repair with maternal complications and prematurity as a trade-off. As such, fetal MMC closure has become a standard of care option for prenatally diagnosed spina bifida. This paper reviews the MOMS trial and the journey of fetal MMC closure since that time. PMID- 29031540 TI - Maternal uterine artery VEGF gene therapy for treatment of intrauterine growth restriction. AB - Intrauterine growth restriction (IUGR) is a serious pregnancy complication affecting approximately 8% of all pregnancies. The aetiology is believed to be insufficient maternal uteroplacental perfusion which prevents adequate nutrient and oxygen availability for the fetus. There is no treatment that can improve uteroplacental perfusion and thereby increase fetal growth in the uterus. Maternal uterine artery gene therapy presents a promising treatment strategy for IUGR, with the use of adenoviral vectors encoding for proteins such as Vascular Endothelial Growth Factor (VEGF) demonstrating improvements in fetal growth and neonatal outcome in preclinical studies. Mechanistically, maternal VEGF gene therapy delivered to the uterine arteries increases uterine blood flow and enhances vascular relaxation short term, while reducing vascular contractility long term. It also leads to vascular remodeling with increased endothelial cell proliferation in the perivascular adventitia of uterine arteries. Safety assessments suggest no vector spread to the fetus and no adverse risk to the mother or fetus; a clinical trial is in development. This article assesses research into VEGF maternal uterine artery directed gene therapy for IUGR, investigating the use of transgenes and vectors, their route of administration in obstetrics, and the steps that will be needed to take this treatment modality into the clinic. PMID- 29031541 TI - How to boost marine fungal research: A first step towards a multidisciplinary approach by combining molecular fungal ecology and natural products chemistry. AB - Marine fungi have attracted attention in recent years due to increased appreciation of their functional role in ecosystems and as important sources of new natural products. The concomitant development of various "omic" technologies has boosted fungal research in the fields of biodiversity, physiological ecology and natural product biosynthesis. Each of these research areas has its own research agenda, scientific language and quality standards, which have so far hindered an interdisciplinary exchange. Inter- and transdisciplinary interactions are, however, vital for: (i) a detailed understanding of the ecological role of marine fungi, (ii) unlocking their hidden potential for natural product discovery, and (iii) designing access routes for biotechnological production. In this review and opinion paper, we describe the two different "worlds" of marine fungal natural product chemists and marine fungal molecular ecologists. The individual scientific approaches and tools employed are summarised and explained, and enriched with a first common glossary. We propose a strategy to find a multidisciplinary approach towards a comprehensive view on marine fungi and their chemical potential. PMID- 29031542 TI - Complications and 30-Day readmission rates after craniotomy/craniectomy: A single Institutional study of 243 consecutive patients. AB - Early hospital readmission has become a proxy for quality of care and contributes significantly to high health care costs in the United States, with more than $20 billion health care dollars are spent on 30-day readmission annually. Cranial neurosurgical procedures (i.e., craniotomy, craniectomy) are associated with high readmission rates; however, studies examining readmission after cranial procedures are limited and relatively unknown. The aim of this study is to identify the drivers of 30-day unplanned readmission in consecutive patients undergoing craniotomies and craniectomies. The medical records of 243 consecutive patients undergoing either craniotomy or craniectomy at a major academic institution in 2011 were reviewed. Patient demographics, comorbidities, intra- and post-operative complication rates were collected for each patient. We identified all unplanned readmissions within 30 days of discharge. A total of 10 (4.1%) unplanned 30-day readmissions were identified. The mean +/- SD age was 58.58 +/- 15.12 years. The most common indication for surgery was malignancy (63.4%) followed by Chiari malformation (10.3%), epilepsy (5.3%), and skull lesion/deformity (2.9%). The majority of patients presented to the emergency department from home (80%), while 10% were readmitted from a skilled nursing facility and 10% were readmitted from an acute rehabilitation institution. The most common presented symptoms for readmitted patients were fever/presumed infection (40%) and altered mental status (40%), followed by new sensory/motor deficits (30%). This study suggests that infection, altered mental status, and new sensory/motor deficits were the primary complications leading to unplanned 30 day readmission after cranial neurosurgery. PMID- 29031543 TI - Down-regulation of TGF-beta RII expression is correlated with tumor growth and invasion in non-functioning pituitary adenomas. AB - The two types of TGF-beta receptors play a crucial role in TGF-beta signaling. It has been reported that TGF-beta signaling activity may be associated with the development and invasion of NFPAs. However, the role of TGF-beta receptor signaling in NFPAs has not been fully explored. In this study, the expression of TGF-beta RI and TGF-beta RII in normal anterior pituitaries, invasive NFPAs and non-invasive NFPAs was analyzed by qRT-PCR, western blot, and immunohistochemistry. We found that TGF-beta RII protein and mRNA levels gradually decreased from normal anterior pituitaries, noninvasive NFPAs to invasive NFPAs. There was no significant difference in the expression of TGF-beta RI mRNA and protein level between normal anterior pituitaries and NFPAs. PCNA mRNA level was significantly higher in the invasive NFPAs than noninvasive NFPAs and PCNA mRNA had a negative correlation with TGF-beta RII mRNA. We may draw the conclusion that low expression of TGF-beta RII may contribute to the development and invasion of NFPAs and TGF-beta RII promises to be a useful biomarker for the diagnosis of invasive NFPAs. PMID- 29031544 TI - Effects of augmented corticosterone in painted turtle eggs on offspring development and behavior. AB - Maternal stressors can play an integral role in offspring development and ultimate behaviors in many vertebrates. Increased circulating stress avoidance hormones can be reflected in elevated concentrations in ova, thus providing a potential mechanism for maternal stress to be transmitted to offspring even in taxa without parental care. In this study, we assessed the potential impacts of augmented stress avoidance hormones on offspring development and anti-predator behaviors in a freshwater turtle, Chrysemys picta. We exposed C. picta eggs to biologically relevant amounts of the stress avoidance hormone, corticosterone, as a proxy for maternal stressors. We allowed the eggs to incubate in the field, then measured offspring phenotypes, conducted performance trials, and simulated nest emergence in a field experiment. Exogenous corticosterone reduced survivorship to hatch, but did not affect incubation duration, offspring size, overwinter survival, or size after hibernation. In performance trials, this hormone treatment reduced the frequency of righting, yet enhanced the righting speed of neonates. Regardless, these performance differences did not detectably alter survivorship in the nest emergence experiment. These results lend insight into the potential effects of maternal stress levels on offspring phenotypes, as well as the robustness of offspring fitness to altered levels of maternal stress in freshwater turtles. PMID- 29031545 TI - Social modeling of eating mediated by mirror neuron activity: A causal model moderated by frontal asymmetry and BMI. AB - The social modeling of eating effect refers to the consistently demonstrated phenomenon that individuals tend to match their quantity of food intake to their eating companion. The current study sought to explore whether activity within the mirror neuron system (MNS) mediates the social modeling of eating effect as a function of EEG frontal asymmetry and body mass index (BMI). Under the guise of rating empathy, 93 female undergraduates viewed a female video confederate "incidentally" consume either a low or high intake of chips while electroencephalogram (EEG) activity was recorded. Subsequent ad libitum chip consumption was quantified. A first- and second-stage dual moderation model revealed that frontal asymmetry and BMI moderated an indirect effect of model consumption on participants' food consumption as mediated by MNS activity at electrode site C3, a3b3=-0.718, SE=0.365, 95% CI [-1.632, -0.161]. Left frontal asymmetry was associated with greater mu activity and a positive association between model and participant chip consumption, while right frontal asymmetry was associated with less mu activity and a negative association between model and participant consumption. Across all levels of frontal asymmetry, the effect was only significant among those with a BMI at the 50th percentile or lower. Thus, among leaner individuals, the MNS was demonstrated to mediate social modeling of eating, as moderated by frontal asymmetry. These findings are integrated within the normative account of social modeling of eating. It is proposed that the normative framework may benefit from consideration of both conscious and unconscious operation of intake norms. PMID- 29031546 TI - Influenza virus but not MERS coronavirus circulation in Iran, 2013-2016: Comparison between pilgrims and general population. AB - BACKGROUND: The pilgrimage to Mecca and Karbala bring many Muslims to a confined area. Respiratory tract infections are the most common diseases transmitted during mass gatherings in Hajj, Umrah and Karbala. The aim of this study was to determine and compare the prevalence of Middle East respiratory syndrome coronavirus (MERS-CoV) and influenza virus infections among Iranian general population and pilgrims with severe acute respiratory infections (SARI) returning from Mecca and Karbala during 2013-2016. METHODS: During 2013-2016, a total of 42351 throat swabs were examined for presence of influenza viruses and MERS-CoV in Iranian general population and pilgrims returning from Mecca and Karbala with SARI by using one step RT-PCR kit. RESULTS: None of the patients had MERS-CoV but influenza viruses were detected in 12.7% with high circulation of influenza A/H1N1 (47.1%). CONCLUSION: This study showed the prevalence of influenza infections among Iranian pilgrims and general population and suggests continuing surveillance, infection control and appropriate vaccination especially nowadays that the risk of influenza pandemic threatens the world, meanwhile accurate screening for MERS-CoV is also recommended. PMID- 29031547 TI - Forebrain activation during social exposure in wild-type guppies. AB - The neural mechanisms regulating social behaviour have received extensive attention in recent years, with much focus on 'complex' forms of sociality. Comparatively little research has addressed fundamental social behaviour, such as grouping, which impacts multiple determinants of fitness, such as foraging and avoiding predation. We are interested in the degree to which brain areas that regulate other forms of sociality are also involved in grouping behaviour, and so we investigated shoal-elicited activation of the brain in the guppy (Poecilia reticulata). Guppies are small, social fish that live in the rivers of Trinidad and, like many social fish, exhibit preferences for larger shoals. We first confirmed that our study population of wild-type guppies preferred to join a larger shoal, and then investigated the activation of four brain regions proposed to be involved in social behaviour and reward (the preoptic area, the dorsal part of the ventral telencephalon, the ventral part of the ventral telencephalon, and the supracommissural part of the ventral pallium). Subjects were exposed to a large shoal, a small shoal, or to a tank empty of conspecifics, and we used immediate early gene expression (egr-1) to assess neuronal activation. We found increased activation in the preoptic area when fish were exposed to a large shoal compared to controls that had no social exposure. There were no significant differences in activation within the other brain areas examined, possibly because these brain areas are not key regulators of grouping behaviour or have only a secondary role. The higher activation of the preoptic area during social exposure suggests functional homology in this highly-conserved region across all vertebrates. PMID- 29031548 TI - Green tea protects against memory deficits related to maternal deprivation. AB - Maternal deprivation (MD) in early life affects the development of the brain, causing cognitive losses in adulthood. Oxidative imbalance may be one of the factors that trigger these deficits. Therapies with antioxidant components, like green tea from Camellia sinensis (GT) has been used to treat or prevent memory deficits in a variety of conditions related to oxidative stress. Here we demonstrate that memory deficits caused by MD can be prevented by GT antioxidant activity in hippocampus. Pregnant female rats were used. Her puppies were submitted to MD and intake of GT. Recognition and aversive memory were evaluated, as well as hippocampal oxidative status. Data showed that MD prejudice short and long-term recognition and aversive memory and that GT protected memory. Hippocampal reactive oxygen species levels were increased in MD rats; this increase was avoided by GT supplementation. GSH was decreased on hippocampus MD rats. GT did not avoid GSH decrease, but promote the increase of total antioxidant capacity in MD rats' hippocampus. In conclusion, GT protects against memory deficits related to MD, and one of the implicated mechanism seems to be the antioxidant effects of GT. PMID- 29031549 TI - Assessment of social behavior directed toward sick partners and its relation to central cytokine expression in rats. AB - Acute illness not only reduces the expression of social behavior by sick rodents, but can also lead to avoidance responses when detected by healthy, would-be social partners. When healthy animals interact with a sick partner, an intriguing question arises: does exposure to a sick conspecific elicit an anticipatory immune response that would facilitate defense against future infection? To address this question, healthy adult male Sprague-Dawley rats (N=64) were given a brief social interaction (30min) with a partner that was either sick (250MUg/kg injection with lipopolysaccharide [LPS] 3h prior to test) or healthy (sterile saline injection). During this exposure, social behavior directed toward the healthy or sick conspecific was measured. Additionally, the impact of housing condition was assessed, with rats group- or isolate-housed. Immediately after social interaction, brains were harvested for cytokine assessments within socially-relevant brain structures (olfactory bulb, amygdala, hippocampus and PVN). As expected, behavioral results demonstrated that (i) there was a robust suppression of social interaction directed against sick conspecifics; and (ii) isolate-housing generally increased social behavior. Furthermore, examination of central cytokine expression in healthy experimental subjects revealed a modest increase in TNF-alpha in rats that interacted with a sick social partner, but only in the olfactory bulb. Among the LPS-injected partners, expected increases in IL-1beta, IL-6, and TNF-alpha expression were observed across all brain sites. Moreover, IL-1beta and IL-6 expression was exacerbated in LPS-injected partners that interacted with isolate-housed experimental subjects. Together, these data replicate and extend our prior work showing that healthy rats avoid sick conspecifics, and provide preliminary evidence for an anticipatory cytokine response when rats are exposed to a sick partner. These data also provide new evidence to suggest that recent housing history potently modulates cytokine responses evoked by LPS. PMID- 29031551 TI - Neuroinflammation and neurosteroidogenesis: Reciprocal modulation during injury to the adult zebra finch brain. AB - Estrogens like estradiol (E2) via their receptors are pluripotent steroid hormones that exert a profound influence on the developing and adult brain in many vertebrates. In songbirds and mammals, acute brain injury resulting from mechanical damage, anoxia and ischemia rapidly upregulates aromatase and E2 synthesis. Interestingly, this E2 provision occurs due to the induction of aromatase expression in reactive astrocytes in areas surrounding brain injury. The resultant increase in E2 is neuroprotective with established influences on apoptosis, gliosis, cytogenesis, neurogenesis and neuroinflammation. Correspondingly, E2 decreases secondary damage following acute brain trauma and may improve recovery. Until very recently however, the signals responsible for the induction of astrocytic aromatase expression in reactive astrocytes were unknown. In the current review, we discuss what is known about the role of astrocytic E2 in neuroprotection with a particular emphasis on a recently discovered interaction between neuroinflammatory and steroidogenic signaling in the zebra finch. We first describe the role of acute inflammatory signaling in the regulation of astrocytic aromatase and central E2 levels. Next, we discuss the emerging role of central E2 in the control of chronic neuroinflammation. Finally, we provide a framework for further work investigating the important role of the interaction between inflammatory and steroidogenic signaling in the protection of neural circuits and behavior following traumatic brain injury (TBI). We also highlight dimorphisms that point to important aspects of sex specific pathways that underlie the interactions of neuroinflammation and neurosteroidogenesis. PMID- 29031550 TI - Mechanisms for AgRP neuron-mediated regulation of appetitive behaviors in rodents. AB - The obesity epidemic is a major health and economic burden facing both developed and developing countries worldwide. Interrogation of the central and peripheral mechanisms regulating ingestive behaviors have primarily focused on food intake, and in the process uncovered a detailed neuroanatomical framework controlling this behavior. However, these studies have largely ignored the behaviors that bring animals, including humans, in contact with food. It is therefore useful to dichotomize ingestive behaviors as appetitive (motivation to find and store food) and consummatory (consumption of food once found), and utilize an animal model that naturally displays these behaviors. Recent advances in genetics have facilitated the identification of several neuronal populations critical for regulating ingestive behaviors in mice, and novel functions of these neurons and neuropeptides in regulating appetitive behaviors in Siberian hamsters, a natural model of food foraging and food hoarding, have been identified. To this end, hypothalamic agouti-related protein/neuropeptide Y expressing neurons (AgRP neurons) have emerged as a critical regulator of ingestive behaviors. Recent studies by Dr. Timothy Bartness and others have identified several discrete mechanisms through which peripheral endocrine signals regulate AgRP neurons to control food foraging, food hoarding, and food intake. We review here recent advances in our understanding of the neuroendocrine control of ingestive behaviors in Siberian hamsters and other laboratory rodents, and identify novel mechanisms through which AgRP neurons mediate appetitive and consummatory behaviors. PMID- 29031552 TI - AgRP knockdown blocks long-term appetitive, but not consummatory, feeding behaviors in Siberian hamsters. AB - Arcuate hypothalamus-derived agouti-related protein (AgRP) and neuropeptide Y (NPY) are critical for maintaining energy homeostasis. Fasting markedly upregulates AgRP/NPY expression and circulating ghrelin, and exogenous ghrelin treatment robustly increases acute food foraging and food intake, and chronic food hoarding behaviors in Siberian hamsters. We previously demonstrated that 3rd ventricular AgRP injection robustly stimulates acute and chronic food hoarding, largely independent of food foraging and intake. By contrast, 3rd ventricular NPY injection increases food foraging, food intake, and food hoarding, but this effect is transient and gone by 24h post-injection. Because of this discrepancy in AgRP/NPY-induced ingestive behaviors, we tested whether selective knockdown of AgRP blocks fasting and ghrelin-induced increases in food hoarding. AgRP gene knockdown by a novel DICER small interfering RNA (AgRP-DsiRNA) blocked food deprivation induced increases in AgRP expression, but had no effect on NPY expression. AgRP-DsiRNA attenuated acute (1day), and significantly decreased chronic (4-6days), food deprivation-induced increases in food hoarding. In addition, AgRP-DsiRNA treatment blocked exogenous ghrelin-induced increases in food hoarding through day 3, but had no effect on basal food foraging, food intake, or food hoarding prior to ghrelin treatment. Lastly, chronic AgRP knockdown had no effect on body mass, fat mass, or lean mass in either food deprived or ad libitum fed hamsters. These data collectively suggest that the prolonged increase in food hoarding behavior following energetic challenges, and food deprivation especially, is primarily regulated by downstream AgRP signaling. PMID- 29031553 TI - Relationship Between HIV and Depressive Symptomatology in Patients From Northern Portugal: Analysis of Individual, Health, and Social Predictors. AB - Depression is the most prevalent mental disorder in people living with HIV. Our study involved 371 participants in outpatient treatment for HIV in hospitals in northern Portugal. Participants were referred to the study by the attending physician/nurse, and data were collected through an individual interview at a single evaluation moment. Participants were mostly male (70%), with an average age of 46.63 years (SD = 11.77), and a known diagnosis of HIV for an average of 10.13 years (SD = 6.42). Severe depressive symptoms were identified in 18% of participants. We identified several significant predictors of depressive symptoms: being female, being in a situation of social exclusion, having adverse experiences throughout life, infection by sexual contact in a stable marital relationship, daily concerns regarding health, negative family relationships, and dissatisfaction with social support. Findings suggest the need to include regular mental health assessments and referral for specialized psychological support services. PMID- 29031554 TI - Unruptured intracranial aneurysms: It is not a bomb! PMID- 29031555 TI - Beneficial effects of dietary restriction in aging brain. AB - Aging is a multifactorial complex process that leads to the deterioration of biological functions wherein its underlying mechanism is not fully elucidated. It affects the organism at the molecular and cellular level that contributes to the deterioration of structural integrity of the organs. The central nervous system is the most vulnerable organ affected by aging and its effect is highly heterogeneous. Aging causes alteration in the structure, metabolism and physiology of the brain leading to impaired cognitive and motor-neural functions. Dietary restriction (DR), a robust mechanism that extends lifespan in various organisms, ameliorates brain aging by reducing oxidative stress, improving mitochondrial function, activating anti-inflammatory responses, promoting neurogenesis and increasing synaptic plasticity. It also protects and prevents age-related structural changes. DR alleviates many age-associated diseases including neurodegeneration and improves cognitive functions. DR inhibits/activates nutrient signaling cascades such as insulin/IGF-1, mTOR, AMPK and sirtuins. Because of its sensitivity to energy status and hormones, AMPK is considered as the global nutrient sensor. This review will present an elucidative potential role of dietary restriction in the prevention of phenotypic features during aging in brain and its diverse mechanisms. PMID- 29031556 TI - Corrigendum to "Long-term results of a phase II study of gemcitabine and cisplatin chemotherapy combined with intensity-modulated radiotherapy in locoregionally advanced nasopharyngeal carcinoma" [Oral Oncol. 73 (2017) 118 123]. AB - OBJECTIVES: To evaluate long-term results of a phase II study of induction and adjuvant gemcitabine and cisplatin (GP) chemotherapy with intensity-modulated radiotherapy (IMRT) in locoregionally advanced nasopharyngeal carcinoma (NPC). MATERIALS AND METHODS: One hundred and twelve patients (Stage III: 65, IVA-B: 47) with locoregionally advanced NPC were enrolled in this study. All patients received induction chemotherapy consisting of 1000 mg/m2 gemcitabine on day 1 and 8, and cisplatin 25 mg/m2 on day 1-3, every 3 weeks for 2 cycles. Adjuvant chemotherapy for 2 cycles of the same regime was given 28 days after the end of IMRT. The IMRT technique was utilized for all patients. RESULTS: In total, 97.3% patients completed 2 cycles of induction chemotherapy. The overall response rate (RR) of cervical lymph nodes was 89.0%. Acute toxicities were mainly grade 1-2 myleosuppression and vomiting. And 83.9% patients completed 2 cycles of adjuvant chemotherapy. All patients finished IMRT with RR at the end of IMRT for nasopharynx, lymph nodes of neck and retropharyngeal area being 99.1%, 97.9% and 97.7%, respectively. The 5-year local control, regional control, distant metastasis-free and overall survival rates were 93.2%, 92.3%, 89.0% and 82.1%, respectively. The 5-year overall survival of stage III and IVA-B were 87.0%, and 75.5%, respectively. The incidence of grade 3-4 acute radiotherapy-related mucositis was 28.6%. Severe late toxicities were uncommon. CONCLUSION: IMRT combined with GP for locoregionally advanced NPC is well tolerated, effective, and convenient, and warrants further studies. PMID- 29031557 TI - Regulation of HC11 mouse breast epithelial cell differentiation by the E cadherin/Rac axis. AB - It was previously demonstrated that differentiation of some established breast epithelial cell lines requires confluence and stimulation with hydrocortisone, insulin and prolactin inducers. We and others previously demonstrated that E cadherin engagement, which is favored under conditions of confluence, increases the levels and activity of the Rac small GTPase. To investigate the functional relationship between the transforming ability of Rac and its role as an integral component of the differentiative E-cadherin signaling pathway, we introduced a mutationally activated form of Rac, RacV12, into the mouse breast epithelium derived cell line, HC11. Our results demonstrate that the strength of the Rac signal is key for the outcome of the differentiation process; cRac1 is critically required for differentiation, and at low levels, mutationally activated RacV12 is able to increase differentiation, presumably reinforcing the E-cadherin/Rac differentiative signal. However, high RacV12 expression blocked differentiation concomitant with E-cadherin downregulation, while inducing neoplastic transformation. Therefore, the intensity of the Rac signal is a central determinant in the balance between cell proliferation vs differentiation, two fundamentally opposed processes, a finding which could also have important therapeutic implications. PMID- 29031558 TI - Resolution and identification of scalemic caged xanthones from the leaf extract of Garcinia propinqua having potent cytotoxicities against colon cancer cells. AB - A new scalemic 8,8a-dihydro caged xanthone (1) was isolated from the leaf extract of Garcinia propinqua. Five other known natural products, the three caged xanthones (2, 5 and 6) and the two neocaged xanthones, (3 and 4) were also isolated as scalemic mixtures. Their structures were characterized by spectroscopic methods. The enantiomeric ratios (er) of compounds 1-6 ranged from 1:0.7 to 1:0.9. These compounds were also resolved by semipreparative chiral HPLC. The absolute configurations of (+)-2 and (+)-3 were determined by single crystal X-ray diffraction analysis using Cu Kalpha radiation while the absolute configurations of the other compounds were determined by comparisons of their ECD spectra. Compounds (-)-4, (+)-4, (-)-5, (+)-5, and (-)-6 showed potent cytotoxicities against a colon cancer cell line HCT116 with IC50 values of 2.60, 7.02, 1.47, 3.37, and 4.14MUM, respectively, which were better than the standard control doxorubicin (IC50 9.74MUM). PMID- 29031559 TI - New sesquiterpenoid isonitriles from three species of phyllidid nudibranchs. AB - Chemical investigation of the two nudibranch species Phyllidiella pustulosa and Phyllidia ocellata collected in Queensland, Australia, provided new stereoisomers of 4-isocyano-9-amorphene (1) and of 10-isocyano-4-amorphene (2), respectively. A specimen of Phyllidia picta collected from Bali, Indonesia, contained the axane sesquiterpenoids pictaisonitrile-1 (3) and pictaisonitrile-2 (4). The planar structures were elucidated using 1D and 2D NMR spectroscopy, while relative configurations were established using NOESY correlations, coupling constant data, and comparison with literature data. PMID- 29031560 TI - Expanding nursing knowledge for therapeutic plasma exchange a literature review paper. PMID- 29031561 TI - A century of introductions by coastal sessile marine invertebrates in Angola, South East Atlantic Ocean. AB - South Atlantic studies referring to non-native taxa are mostly restricted to Argentinean, Brazilian, and South African coasts. In this study we examined the literature to provide a list of sessile marine invertebrates along the Angolan coast, to infer its introduction status according to their biogeographical distribution and natural history. We reported 29 non-native and 7 cryptogenic species, a small number when compared to other South Atlantic regions of similar extension. Half of the non-native species were reported for Luanda. The majority of the introduced species had a northern hemisphere origin, a consequence of the main introduction route being from the North Atlantic/Mediterranean Sea during the Portuguese colonization. This is the first comprehensive assessment of this kind for the Angolan coast and the diversity of introduced species is certainly underestimated. Regular and rigorous assessments and monitoring of introduced marine species will help to understand the vectors, routes and time of introductions. PMID- 29031562 TI - Marine litter at the seafloor - Abundance and composition in the North Sea and the Baltic Sea. AB - Litter is present in all marine waters around the globe. It consists of several compound classes of which plastic is of special interest because of its high abundance and possible threat to marine organisms. The regional distribution, composition and abundance of large litter items (LI) at the sea floor of the North Sea and the Baltic Sea were investigated based on 175 bottom trawls between 2013 and 2015. Different types of marine litter >2.5cm were classified according to the protocol of the ICES International Bottom Trawl Survey. The results showed considerable geographical variation: In the North Sea, a mean litter abundance of 16.8LI/km2 was found, whereas the litter abundance in the Baltic Sea was significantly lower (5.07LI/km2). In general, plastic represented 80% of the litter items. During the study, some methodical aspects with possible impact on the results were identified that need to be addressed in future sampling campaigns. PMID- 29031563 TI - Gender-Specific Association of Desacylated Ghrelin with Subclinical Atherosclerosis in the Metabolic Syndrome. AB - OBJECTIVE: Ghrelin, a gastric hormone with pleiotropic effects modulates vascular function and may influence atherosclerosis. Plasma ghrelin is reduced in the metabolic syndrome (MS), which is also characterized by early atherosclerosis. Ghrelin circulates in acylated (AG) and desacylated (DAG) forms. Their relative impact and that of gender on subclinical atherosclerosis in MS is unknown. AIM OF THE STUDY: To investigate potential associations of total, AG and DAG with carotid atherosclerosis and with gender in the MS. METHODS: Plasma total ghrelin, AG, DAG and carotid artery IMT (cIMT) were measured in 46 MS patients (NCEP-ATP III criteria, 22M/24F). RESULTS: Compared with males, females had higher (p <0.05) total and DAG. In the association analysis, age and plasma glucose were positively (p <0.05) correlated with cIMT in all MS patients. The positive (p <0.05) association between cIMT and age was also confirmed in males, while that between cIMT and glucose was significant in women. In contrast, neither total ghrelin nor AG and DAG were associated with cIMT in all MS patients nor in the male subgroup. In females, a negative (p <0.05) association between carotid artery IMT, DAG and glucose was detected, but not between cIMT, total ghrelin and AG. In multivariate modeling, DAG remained negatively (p <0.05) associated with cIMT after adjusting for plasma glucose and cardiovascular risk factors. CONCLUSIONS: These data indicate a negative independent association between DAG and cIMT in middle-aged women with the MS and suggest a gender-specific modulatory function of DAG in the development of atherosclerosis. PMID- 29031564 TI - eIF3a: A new anticancer drug target in the eIF family. AB - eIF3a is the largest subunit of eIF3, which is a key player in all steps of translation initiation. During the past years, eIF3a is recognized as a proto oncogene, which is an important discovery in this field. It is widely reported to be correlated with cancer occurrence, metastasis, prognosis, and therapeutic response. Recently, the mechanisms of eIF3a action in the carcinogenesis are unveiled gradually. A number of cellular, physiological, and pathological processes involving eIF3a are identified. Most importantly, it is emerging as a new potential drug target in the eIF family, and some small molecule inhibitors are being developed. Thus, we perform a critical review of recent advances in understanding eIF3a physiological and pathological functions, with specific focus on its role in cancer and anticancer drug targets. PMID- 29031565 TI - Quantified postsurgical small cell size CTCs and EpCAM+ circulating tumor stem cells with cytogenetic abnormalities in hepatocellular carcinoma patients determine cancer relapse. AB - Detection of hepatocellular carcinoma circulating tumor cells performed with conventional strategies, is significantly limited due to inherently heterogeneous and dynamic expression of EpCAM, as well as degradation of cytokeratins during epithelial-to-mesenchymal transition, which inevitably lead to non-negligible false negative detection of such "uncapturable and invisible" CTCs. A novel SE iFISH strategy, improved for detection of HCC CTCs in this study, was applied to comprehensively detect, in situ phenotypically and karyotypically characterize hepatocellular and cholangiocarcinoma CTCs (CD45-/CD31-) in patients subjected to surgical resection. Clinical significance of diverse subtypes of CTC was systematically investigated. Existence of small cell size CTCs (<=5 MUm of WBCs) with cytogenetic abnormality of aneuploid chromosome 8, which constituted majority of the detected CTCs in HCC patients, was demonstrated for the first time. The stemness marker EpCAM+ aneuploid circulating tumor stem cells (CTSCs), and EpCAM- small CTCs with trisomy 8, promote tumor growth. Postsurgical quantity of small triploid CTCs (>=5 cells/6 ml blood), multiploid (>=pentasomy 8) CTSCs or CTM (either one >= 1) significantly correlated to HCC patients' poor prognosis, indicating that detection of those specific subtypes of CTCs and CTSCs in post-operative patients help predict neoplasm recurrence. PMID- 29031566 TI - High NRF2 expression controls endoplasmic reticulum stress induced apoptosis in multiple myeloma. AB - Multiple myeloma (MM) is an incurable disease characterized by clonal plasma cell proliferation. The stress response transcription factor Nuclear factor erythroid 2 [NF-E2]-related factor 2 (NRF2) is known to be activated in MM in response to proteasome inhibitors (PI). Here, we hypothesize that the transcription factor NRF2 whose physiological role is to protect cells from reactive oxygen species via the regulation of drug metabolism and antioxidant gene plays an important role in MM cells survival and proliferation. We report for the first time that NRF2 is constitutively activated in circa 50% of MM primary samples and all MM cell lines. Moreover, genetic inhibition of constitutively expressed NRF2 reduced MM cell viability. We confirm that PI induced further expression of NRF2 in MM cell lines and primary MM. Furthermore, genetic inhibition of NRF2 of PI treated MM cells increased ER-stress through the regulation of CCAAT-enhancer-binding protein homologous protein (CHOP). Finally, inhibition of NRF2 in combination with PI treatment significantly increased apoptosis in MM cells. Here we identify NRF2 as a key regulator of MM survival in treatment naive and PI treated cells. PMID- 29031567 TI - Operation Breakthrough in 2017 Builds on the Past. AB - Operation Breakthrough (OB) is one of Missouri's largest early Head Start program and provides a variety of other services related to early childhood education and family support to low-income families who live in the poorest neighborhoods of Kansas City. Currently 96% of its preschool children enter kindergarten ready to learn. Current CLASSTM scores for Emotional Support, Organizational Support, and Instructional Support exceed national averages. In this paper, we describe the range of services it provides and give details of its organizational structure and budget. PMID- 29031568 TI - Anxiety Disorders in Old Age: Psychiatric Comorbidities, Quality of Life, and Prevalence According to Age, Gender, and Country. AB - OBJECTIVES: Previous estimates of the prevalence of anxiety disorders in late life vary greatly due to the lack of reliable diagnostic tools. This MentDis_ICF65+ study assessed 12-month prevalence rates of anxiety disorders and age- and gender-related differences in comorbidities, as well as impact on quality of life. DESIGN: The study used a cross-sectional multicenter survey. PARTICIPANTS: The study sample comprised 3,142 men and women aged 65 to 84 years, living in five European countries and Israel. MEASUREMENTS: Anxiety disorders were assessed using computer-assisted face-to-face interviews with an age appropriate diagnostic interview (CIDI65+). RESULTS: The prevalence of anxiety disorders was 17.2%. Agoraphobia was the most frequent disorder (4.9%), followed by panic disorder (3.8%), animal phobia (3.5%), general anxiety disorder (3.1%), post-traumatic stress disorder (1.4%), social phobia (1.3%), and obsessive compulsive disorder (0.8%). The prevalence rate of any anxiety disorder dropped by 40% to 47% in adults aged 75-84 years compared with those aged 65-74 years. Women were twice as likely to present with agoraphobia or general anxiety disorder as men. Only panic disorder and phobia were associated with comorbid major depression. The negative relationship with quality of life was limited to agoraphobia and generalized anxiety disorder. CONCLUSIONS: The age-appropriate CIDI65+ led to higher prevalence rates of anxiety disorders in the elderly, yet to weaker associations with comorbidities and impaired quality of life compared with previous studies. PMID- 29031569 TI - Response to: Measuring Loneliness: Are There Method Factors? PMID- 29031570 TI - Relationship among Depression, Gait Disturbance, Disability, and Neurobiological Abnormalities. PMID- 29031571 TI - Bipolar Disorder in Nursing Homes: Impact on Antipsychotic Use, Diagnosis Patterns, and New Diagnoses in People with Dementia. AB - OBJECTIVES: Nursing home quality measures include the proportion of residents who receive antipsychotics. Residents with bipolar disorder are included even though antipsychotics are FDA-approved for this indication. We evaluated how including residents with bipolar disorder impacted the antipsychotic use quality measure for long-stay residents. We evaluated the agreement of minimum data set (MDS) bipolar disorder diagnoses with Medicare data, whether dementia was diagnosed before bipolar disorder, and how less-specific bipolar disorder diagnoses impacted findings. DESIGN: Cross-sectional study. SETTING: Nursing homes in Iowa. PARTICIPANTS: 21,955 long-stay nursing home residents in the first quarter of 2014. MEASUREMENTS: We identified antipsychotic use and bipolar disorder using MDS data. We compared MDS bipolar disorder diagnoses with Chronic Conditions Warehouse (CCW) "ever" bipolar disorder indicators, and prior year claims. We compared CCW condition onset dates to identify bipolar disorder diagnosed after dementia. RESULTS: The mean (SD) proportion receiving antipsychotics was 19.6% (11.1%) with bipolar disorder and 18.3% (10.8%) without. The positive predictive value (PPV) of MDS bipolar disorder diagnoses was 80.2% versus CCW lifetime indicators, and 74.6% versus claims. PPV decreased by 27.1% when "bipolar disorder, unspecified" and "other bipolar disorders" diagnoses were excluded. Nearly three-quarters of residents with bipolar disorder had dementia. Over half of those with dementia had dementia first per CCW records. This proportion was lower among those with more specific bipolar disorder diagnoses or MDS bipolar disorder indicators. CONCLUSIONS: Bipolar disorder in nursing home residents is often first diagnosed after dementia using nonspecific diagnoses. This practice deserves further evaluation. PMID- 29031572 TI - Nature, Nurture, Personality and Behavior: What's the Formula for Survival? PMID- 29031574 TI - A new all-purpose bilateral cleft lip repair: Bilateral cheiloplasty suitable for most conditions. AB - BACKGROUND: Only experienced surgeons can produce satisfactory results with most of the current surgical methods for bilateral cleft lip repair. The existing methods require not only preoperative orthodontic maneuvers but also accurate measurements for surgical design. We describe an easy-to-design and simple-to execute general purpose surgical technique to repair most bilateral cleft lips. METHODS: A retrospective review was performed for the patients who underwent bilateral cleft lip repair using our novel method between 2003 and 2016. The authors collected data from medical records, and the aesthetic results were judged using the aesthetic result categories by three independent surgeons; indirect anthropometry was applied to patients over 9 years of age. In addition, we investigated the complications, the reoperation rate, and the reasons for reoperation. RESULTS: Bilateral cleft lip surgery was performed in 146 cases between 2003 and 2016. Seventy-eight patients had bilateral complete cleft lips, 47 patients had bilateral incomplete cleft lips, and 21 patients had bilateral complete and incomplete cleft lips (asymmetric patients). There were no acute complications requiring re-surgery, such as wound dehiscence, hematoma, and infection. According to aesthetic classification, 74 patients (51%) were classified into category I and 72 patients (49%) into category II; no patients were classified into categories III and IV. Seventy patients (48%) underwent secondary lip operations. In anthropometry, the measurements were observed to be symmetrical; left and right measurement data were not significantly different. The main purposes of the revision were excision of widened philtral scars (42 cases) and correction of lateral vermilion bulging (28 cases). CONCLUSIONS: We have found our novel technique to be simple and capable of providing consistent, reproducible, and reliable results. PMID- 29031573 TI - Aerosol furosemide for dyspnea: Controlled delivery does not improve effectiveness. AB - Aerosolized furosemide has been shown to relieve dyspnea; nevertheless, all published studies have shown great variability in response. This dyspnea relief is thought to result from the stimulation of slowly adapting pulmonary stretch receptors simulating larger tidal volume. We hypothesized that better control over aerosol administration would produce more consistent dyspnea relief; we used a clinical ventilator to control inspiratory flow and tidal volume. Twelve healthy volunteers inhaled furosemide (40mg) or placebo in a double blind, randomized, crossover study. Breathing Discomfort was induced by hypercapnia during constrained ventilation before and after treatment. Both treatments reduced breathing discomfort by 20% full scale. Effectiveness of aerosol furosemide treatment was weakly correlated with larger tidal volume. Response to inhaled furosemide was inversely correlated to furosemide blood level, suggesting that variation among subjects in the fate of deposited drug may determine effectiveness. We conclude that control of aerosol delivery conditions does not improve consistency of treatment effect; we cannot, however, rule out placebo effect. PMID- 29031575 TI - Debunking the myth of e-cigarettes: A case of free flap compromise due to e cigarette use within the first 24 hours. PMID- 29031576 TI - Acute and long-term effects of trophic exposure to silver nanospheres in the central nervous system of a neotropical fish Hoplias intermedius. AB - Nanotechnologies are at the center of societal interest, due to their broad spectrum of application in different industrial products. The current concern about nanomaterials (NMs) is the potential risks they carry for human health and the environment. Considering that NMs can reach bodies of water, there is a need for studying the toxic effects of NMs on aquatic organisms. Among the NMs' toxic effects on fish, the interactions between NMs and the nervous system are yet to be understood. For this reason, our goal was to assess the neurotoxicity of polyvinylpyrrolidone coated silver nanospheres [AgNS (PVP coated)] and compare their effects in relation to silver ions (Ag+) in carnivorous Hoplias intermedius fish after acute and subchronic trophic exposure through the analysis of morphological (retina), biochemical (brain) and genetic biomarkers (brain and blood). For morphological biomarkers, damage by AgNS (PVP coated) in retina was found, including morphological changes in rods, cones, hemorrhage and epithelium rupture, and also deposition of AgNS (PVP coated) in retina and sclera. In the brain biomarkers, AgNS (PVP coated) did not disturb acetylcholinesterase activity. However, lowered migration of the DNA tail in the Comet Assay of blood and brain cells was observed for all doses of AgNS (PVP coated), for both acute and subchronic bioassays, and in a dose-dependent manner in acute exposure. Ag+ also reduced the level of DNA damage only under subchronic conditions in the brain cells. In general, the results demonstrated that AgNS (PVP coated) do not cause similar effects in relation to Ag+. Moreover, the lowered level of DNA damage detected by Comet Assay suggests that AgNS (PVP coated) directly interacts with DNA of brain and blood cells, inducing DNA-DNA or DNA-protein crosslinks. Therefore, the AgNS (PVP coated) accumulating, particularly in the retina, can lead to a competitive disadvantage for fish, compromising their survival. PMID- 29031577 TI - Structural biology of GABAB receptor. AB - Metabotropic GABAB receptor is a G protein-coupled receptor (GPCR) that mediates slow and prolonged inhibitory neurotransmission in the brain. It functions as a constitutive heterodimer composed of the GABAB1 and GABAB2 subunits. Each subunit contains three domains; the extracellular Venus flytrap module, seven-helix transmembrane region and cytoplasmic tail. In recent years, the three-dimensional structures of GABAB receptor extracellular and intracellular domains have been elucidated. These structures reveal the molecular basis of ligand recognition, receptor heterodimerization and receptor activation. Here we provide a brief review of the GABAB receptor structures, with an emphasis on describing the different ligand-bound states of the receptor. We will also compare these with the known structures of related GPCRs to shed light on the molecular mechanisms of activation and regulation in the GABAB system, as well as GPCR dimers in general. This article is part of the "Special Issue Dedicated to Norman G. Bowery". PMID- 29031578 TI - Short-term exposure to bisphenol A affects water and salt intakes differently in male and ovariectomised female rats. AB - Thirst and sodium appetite are motivational states that lead to the search for and ingestion of water and sodium, thus contributing to maintenance of hydromineral balance. Oestrogens affect fluid intake and sodium preference. Bisphenol A (BPA) is an environmental endocrine-disrupting substance with oestrogenic activity. Whether there are sex differences in the ingestive effects of BPA is unknown. Therefore, the aim of the present work was to determine the effect of short-term treatment of low doses of BPA on thirst and sodium appetite in adult male and ovariectomised Wistar rats. Rats were subcutaneously injected with either vehicle or 10, 50, 100, or 500 MUg/kg/day BPA for a week. Two-bottle tests (water and 2.7% NaCl solution) were conducted in the animals' home cages with and without 24 h water deprivation. BPA reduced water and 2.7% NaCl intakes in a sex-dependent-manner. Fluid intakes displayed inverted U-shaped dose response curves, with different dose dependencies in spontaneously drinker rats than after 24 h water deprivation dehydration. Future studies on the role of BPA in sex-dependent body fluid homeostasis should elucidate the effects of BPA on the neuroendocrine controls of thirst and salt appetite. PMID- 29031579 TI - CD4+ CD52lo T-cell expression contributes to the development of systemic lupus erythematosus. AB - The cell-surface glycoprotein CD52 is widely expressed in lymphocytes. CD4+CD52hi T cells are functioning suppressor CD4+T cells. We investigated the role of the immune regulation of CD4+CD52 T cells in systemic lupus erythematosus (SLE). CD4+CD52lo T cells were increased in SLE patients, in positive correlation with SLEDAI, anti-ds-DNA antibody, and IgG concentration. Circulating follicular helper-like T cells (Tfh-like cells) were also increased in SLE, in positive correlation with CD4+CD52lo T cells. Chemokine receptor 8 (CCR8) expression in CD4+CD52lo T cells was increased. In vitro experiments using CD4 T cells of SLE patients showed that thymus and activation-regulated chemokine (TARC), a ligand of CCR8, contributed to the development of CD4+CD52hi T cells into CD4+CD52lo T cells. Our findings suggest that CD4+CD52lo T-cell upregulation is involved in the production of pathogens by autoantibodies, and TARC may contribute to the development of SLE through an aberrant induction of CD4+CD52lo T cells. PMID- 29031580 TI - Prevalence and characteristics of coronary artery disease in heart failure with preserved and mid-range ejection fractions: A systematic angiography approach. AB - BACKGROUND: Guidelines recommend careful screening and treatment of coronary artery disease (CAD) in heart failure with preserved or mid-range ejection fraction (HFpEF/HFmEF). AIM: We aimed to determine the prevalence and characteristics of CAD using a prospective systematic coronary angiography approach. METHODS: A systematic coronary angiography protocol was applied in consecutive patients admitted for HFpEF/HFmEF during a 6-month period in a single centre. History of CAD and results of angiography, including revascularization, were reported. RESULTS: Of the 164 patients with HFpEF/HFmEF who were included, an angiography assessment was applied in 108 (66%) (median age: 79 years [interquartile range: 70-85 years]; 54% were women). In our analysis, 64% (95% confidence interval [CI] 55-73%) of patients had a significant coronary stenosis corresponding to a global CAD prevalence of 80% (95% CI 73-88%). The prevalence of CAD was similar for HFpEF and HFmEF. The left main coronary artery presented a significant stenosis in 6.5% of cases and 39% of patients had a two- or three vessel disease. The rate of significant coronary stenosis was non-significantly higher in patients with a history of CAD. Patients with HFpEF/HFmEF with and without CAD did not differ in clinically meaningful ways, in terms of symptoms or laboratory and echocardiography results. This strategy led to complete revascularization in 36% of patients with significant stenosis and in 23% of all patients with HFpEF/HFmEF. CONCLUSIONS: Our study differs from others in that we used a systematic angiography approach. The results suggest a much higher prevalence of CAD in HFpEF/HFmEF than previously reported and should encourage clinicians to aggressively identify this co-morbidity. PMID- 29031581 TI - Parent Perceptions of Mobile Device Use Among Preschool-Aged Children in Rural Head Start Centers. AB - OBJECTIVE: To describe child use and parents' beliefs and comfort with young children's use of mobile devices in low-income, rural communities. METHODS: This was a descriptive, cross-sectional study. The survey, which consisted of 18 multiple-part questions, was distributed to families at 5 Head Start/preschool centers in Colorado. RESULTS: In total, 192 surveys were returned (28.5% response rate). Most children (92%) used a smartphone or tablet at some frequency and most parents (90%) had downloaded apps specifically for their child. Education and ethnicity were related to parents' technology beliefs. Parent comfort with technology was positively associated with greater child use of technology (P < .001). CONCLUSIONS AND IMPLICATIONS: Mobile device use was relatively high in this sample. Mobile devices appear to be a feasible platform to offer nutrition and physical activity education for this audience. Ensuring parent comfort with technology and apps will be important. PMID- 29031582 TI - Validation of a Shortened Version of the Children's Eating Behavior Questionnaire and Associations with BMI in a Clinical Sample of Latino Children. AB - OBJECTIVE: To examine the validity of the Children's Eating Behavior Questionnaire (CEBQ) through the associations of its 3 subscale scores (food responsiveness, slowness in eating, and satiety responsiveness) with body mass index (BMI). DESIGN: Cross-sectional study of baseline data from a clinic-based obesity prevention and control randomized controlled trial. PARTICIPANTS: Latino pediatric patients (n = 295) aged 5-11 years from a federally qualified health center in San Diego County, CA, with BMI percentiles ranging from 75.5 to 99.0. MAIN OUTCOME MEASURE: Child BMI-for-age percentile computed using the standardized program for the 2000 Centers for Disease Control and Prevention growth charts. ANALYSIS: Principal components analysis and multivariate linear regressions. RESULTS: Principal components analysis showed a factor structure relatively similar to that of the original 3 CEBQ subscales, with acceptable internal consistency and between-subscale correlations. Analyses demonstrated the validity of the 3 subscales: child BMI was positively associated with food responsiveness (beta = .336; P <= .001) and negatively associated with slowness in eating (beta = -.209; P <= .001) and satiety responsiveness (beta = -.211; P <= .001). CONCLUSIONS AND IMPLICATIONS: The 14-item CEBQ scale may be useful for assessing obesogenic eating behaviors of Latino children. Further study is needed to replicate these findings. PMID- 29031583 TI - Model selection for high b-value diffusion-weighted MRI of the prostate. AB - PURPOSE: To assess the abilities of the standard mono-exponential (ME), bi exponential (BE), diffusion kurtosis (DK) and stretched exponential (SE) models to characterize diffusion signal in malignant and prostatic tissues and determine which of the four models best characterizes these tissues on a per-voxel basis. MATERIALS AND METHODS: This institutional-review-board-approved, HIPAA-compliant, retrospective study included 55 patients (median age, 61years; range, 42-77years) with untreated, biopsy-proven PCa who underwent endorectal coil MRI at 3-Tesla, diffusion-weighted MRI acquired at eight b-values from 0 to 2000s/mm2. Estimated parameters were apparent diffusion coefficent (ME model); diffusion coefficients for the fast (Dfast) and slow (Dslow) components and fraction of fast component, ffast (BE model); diffusion coefficient D, and kurtosis K (DK model); distributed diffusion coefficient DDC and alpha for (SE model). For one region-of-interest (ROI) in PZ and another in PCa in each patient, the corrected Akaike information criterion (AICc) and the Akaike weight (w) were calculated for each voxel. RESULTS: Based on AICc and w, all non-monoexponential models outperformed the ME model in PZ and PCa. The DK model in PZ and SE model in PCa ROIs best fit the greatest average percentages of voxels (39% and 43%, respectively) and had the highest mean w (35+/-16*10-2 and 41+/-22*10-2, respectively). CONCLUSION: DK and SE models best fit DWI data in PZ and PCa, and non-ME models consistently outperformed the ME model. Voxel-wise mapping of the preferential model demonstrated that the vast majority of voxels in either tissue type were best fit with one of the non-monoexponential models. At the given SNR levels, the maximum b-value of 2000s/mm2 is not sufficiently high to identify the preferred non monoexponential model. PMID- 29031584 TI - Validation of diffusion measurements obtained on a 0.35T MR in Malawi: Important insights for radiologists in low income settings with low field MRI. AB - PURPOSE: To investigate the reliability of diffusion weighted image (DWI) measurements obtained on a 0.35T MR scanner in Malawi for malaria research. MATERIALS AND METHODS: The same healthy volunteers (n=6) were scanned on a 0.35T MR scanner in Malawi and a 3T scanner in the US. Three subjects had two repeated DWI scans at 0.35T. Due to scanner constraints, only three diffusion gradient directions for DWI on 0.35T could be obtained. An apparent diffusion coefficient (ADC) map was reconstructed from the 0.35T and the result was compared to standard DWI acquisition on the 3T scanner. The mean ADC from 15 different regions and the voxel-wise coefficient of variation (CV) were calculated to investigate the intra-scanner and inter-scanner variability. Reproducibility was calculated using intra-class correlation coefficient (ICC). RESULTS: The 0.35T intra-scanner ADC repeatability was high for all three subjects with repeated scans (ICC>0.7). The intra-scanner correlation between repeated scans was also high (r>0.67, p< 0.01). Comparing the ADC findings from the 0.35T and 3T MRs, the high inter-scanner correlation suggested that the 0.35T ADC results were valid (ICC>0.7, r>0.5, p<0.01). Voxel-wise CV revealed a few regions with larger variation (CV>20%), which were primarily located in peripheral regions and the boundary of lateral ventricles, and likely due to partial volume effects in low field scans. CONCLUSION: These findings support the validity of DWI obtained from low field MR scanners used in many low income countries. PMID- 29031585 TI - Exon-based phylogenomics strengthens the phylogeny of Neotropical cichlids and identifies remaining conflicting clades (Cichliformes: Cichlidae: Cichlinae). AB - The phenotypic, geographic, and species diversity of cichlid fishes have made them a group of great interest for studying evolutionary processes. Here we present a targeted-exon next-generation sequencing approach for investigating the evolutionary relationships of cichlid fishes (Cichlidae), with focus on the Neotropical subfamily Cichlinae using a set of 923 primarily single-copy exons designed through mining of the Nile tilapia (Oreochromis niloticus) genome. Sequence capture and assembly were robust, leading to a complete dataset of 415 exons for 139 species (147 terminals) that consisted of 128 Neotropical species, six African taxa, and five Indo-Malagasy cichlids. Gene and species trees were calculated using alternative partitioning schemes and reconstruction methods. In general, all methods yielded similar topologies to previously hypothesized relationships within the Cichlinae and clarified several relationships that were previously poorly supported or in conflict. Additional work will be needed to fully resolve all aspects of Cichlinae phylogeny. Overall, this approach yielded a well-resolved phylogeny of Neotropical cichlids that will be of utility for future assessments of the evolutionary and ecological processes within this diverse group of fishes. Furthermore, the general methodology employed here of exon targeting and capture should be applicable to any group of organisms with the availability of a reference genome. PMID- 29031586 TI - Complement C5a/C5aR pathway potentiates the pathogenesis of gastric cancer by down-regulating p21 expression. AB - Although the complement C5a/C5aR pathway is suggested to play a critical role in tumor pathogenesis, the underlying mechanism has yet to be fully elucidated. In the present study, we found that in patients with gastric cancer in different clinical stages (from stageIto stage IV), both C5aR and p-PI3K/AKT levels were significantly higher in tumoral tissues than in adjacent non-tumoral tissues. In contrast, p21/p-p21 levels were significantly lower in tumoral tissues than in adjacent non-tumoral tissues. In vitro recombinant C5a administration remarkably promoted p-PI3K/p-AKT expression, but inhibited p21/p-p21 expression. Blockage of C5a/C5aR signaling with a C5aR antagonist reversed the C5a-induced inhibitory effect on p21/p-p21 expression. C5a administration to cells pre-treated with a PI3K inhibitor also prevented this inhibitory effect, suggesting the involvement of the PI3K/AKT signaling pathway in C5a/C5aR-mediated suppression of p21/p-p21 expression. In vivo C5aR antagonist treatment caused significant reduction in tumor growth in mice, accompanied by a remarkable elevation in p21/p-p21 expression and reduction in p-PI3K/AKT activation. These results indicate that the C5a/C5aR pathway promotes gastric cancer pathogenesis by suppressing p21/p p21 expression via activation of PI3K/AKT signaling. PMID- 29031587 TI - A modified von Bertalanffy growth model dependent on temperature and body size. AB - Fish growth models are widely used in fisheries as well in aquacultures and ecology. Water temperature is one of the most important factors determining the growth of fish. In the present study, we propose a growth model that includes the effect of water temperature on the growth in the von Bertalanffy growth model. Our model was applied to fit the growth data of bullhead (Cottus gobio), brown trout (Salmo trutta L.), juvenile salmon (Salmo salar), and Araucanian herring (Strangomera bentincki). The model reproduces the growth patterns of each species and fits a set of appropriate parameter values for each species. Moreover, the model reflects the seasonal growth rates quite well. PMID- 29031588 TI - Swertisin rich fraction from Enicostema littorale ameliorates hyperglycemia and hyperlipidemia in high-fat fed diet and low dose streptozotacin induced type 2 diabetes mellitus in rats. AB - INTRODUCTION: Enicostema littorale blume (A. Raynal) is a traditional Indian plant belongs to the Gentianaceae family. A lot of research has been done on this plant for its antidiabetic activity. However, there are no reports on flavonoids from E. littorale for its antidiabetic activity and their mechanism of action. Thus, the aim of this study is to evaluate the antidiabetic activity of Swertisin rich flavonoid fraction (SRF) from Enicostema littorale blume and their mechanism of action. MATERIALS & METHODS: Type 2 Diabetes Mellitus rat model was established by inducing insulin resistance using high fat diet and low dose of streptozotacin injection and was authenticated by HOMA index. The antidiabetic effect of SRF was evaluated on diabetic rats to investigate its long term effects on fasting blood glucose, OGTT, weight of rats, insulin, liver profile, lipid profile, kidney profile, histopathology of liver and pancreas. In addition, antioxidant activity by lipid peroxidation and catalase assay, ex vivo assays and hepatic glycogen content were performed to determine its effect on glycogenesis and hepatic glucose production. Furthermore, the mechanism of action of SRF was evaluated by Real time PCR and the mRNA expression was quantified for Glucokinase (GCK), Insulin receptor substrate (IRS-1), Glucose transporter-2 (GLUT-2) and Glucose transporter-4 (GLUT-4) genes. RESULTS: Treatment of diabetic rats with SRF demonstrated significant (p<0.0001) dose dependant hypoglycemic activity as compared to positive control metformin group. A decrease in liver, lipid and kidney function tests was seen as compared to diabetic control indicating normalization of organ function tests. Also, antioxidant activity showed significant decrease in malondialdehyde (MDA) content in liver (p<0.001) as compared to pancreas and increased catalytic activity in liver, kidney, spleen and pancreas. The hepatic glycogen content was significantly (p<0.001) increased in SRF treated rats indicating its inhibition of hepatic glucose production. Furthermore, ex vivo assays showed the significant (p<0.05) increase in glucose uptake by diaphragm. The mRNA expression for GCK, IRS-1, GLUT-2 and GLUT-4 genes showed significant up regulation as compared to diabetic control indicating its mechanism via insulin signalling pathway. CONCLUSION: The studies suggest that SRF ameliorates the insulin resistance by increasing glucose uptake and sensitizing cells towards insulin via IRS1/PI3K/Akt2 pathway. PMID- 29031589 TI - Implicit evaluations and physiological threat responses in people with persistent low back pain and fear of bending. AB - BACKGROUND AND AIMS: Pain and protective behaviour are dependent on implicit evaluations of danger to the body. However, current assessment of perceived danger relies on self-report, on information of which the person is aware and willing to disclose. To overcome this limitation, attempts have been made to investigate implicit evaluation of movement-related threatening images in people with persistent low back pain (PLBP) and pain-related fear. Lack of specificity of the sample and stimuli limited those explorations. This study investigated implicit evaluations and physiological responses to images of tasks commonly reported as threatening by people with PLBP: bending and lifting. We hypothesized that people who differ in self-reported fear of bending with a flexed lumbar spine (fear of bending) would also differ in implicit evaluations and physiological responses. METHODS: This study used a convenience sample of 44 people (54% female) with PLBP, who differed in self-reported fear of bending. Participants completed a picture-viewing paradigm with pleasant, neutral and unpleasant images, and images of people bending and lifting with a flexed lumbar spine ('round-back') to assess physiological responses (eye-blink startle modulation, skin conductance). They also completed an implicit association test (IAT) and an affective priming task (APT). Both assessed implicit associations between (i) images of people bending/lifting with a flexed lumbar spine posture ('round-back' posture) or bending/lifting with a straight lumbar spine posture ('straight-back' posture), and (ii) perceived threat (safe vs. dangerous). RESULTS: An implicit association between 'danger' and 'round-back' bending/lifting was evident in all participants (IAT (0.5, CI [0.3; 0.6]; p<0.001) and APT (24.2, CI [4.2; 44.3]; p=0.019)), and unrelated to self-reported fear of bending (IAT (r=-0.24, 95% CI [-0.5, 0.04], p=0.117) and APT (r=-0.00, 95% CI [-0.3, 0.3], p=0.985)). Levels of self-reported fear of bending were not associated with eye-blink startle (F(3, 114)=0.7, p=0.548) or skin conductance responses (F(3, 126)=0.4, p=0.780) to pictures of bending/lifting. CONCLUSIONS: Contrary to our expectation, self-reported fear of bending was not related to physiological startle response or implicit measures. People with PLBP as a group (irrespective of fear levels) showed an implicit association between images of a round-back bending/lifting posture and danger, but did not display elevated physiological responses to these images. These results provide insight to the understanding of the relationship between pain and fear of movement. IMPLICATIONS: The potential clinical implications of our findings are twofold. First, these results indicate that self-report measures do not always reflect implicit associations between particular movements and threat. Implicit association tasks may help overcome this limitation. Second, a lack of the predicted physiological and behavioural responses may reflect that the visualization of a threatening task by people in pain does not elicit the same physiological defensive responses measured in people with fear of specific objects. It may be necessary to expose the person to the actual movement to elicit threat-responses. Together, these results are consistent with current views of the role of 'fear' in the fear-avoidance model, in which a fear response may only be elicited when the threat is unavoidable. PMID- 29031590 TI - Association Between Iron-Deficiency Anemia and Hypophosphatemia. PMID- 29031591 TI - Implications of Anomalous Left Coronary Artery Origin. PMID- 29031592 TI - A Traveler's Unwanted Souvenir. PMID- 29031593 TI - A Closer Look at Frederic Chopin's Cause of Death. PMID- 29031594 TI - The Latest Scoop: A Rare Case of Vitamin D Toxicity. PMID- 29031595 TI - Unexpected Diagnosis in a Man with Painful and Swollen Leg. PMID- 29031596 TI - The ranking of scientists based on scientific publications assessment. AB - It is generally accepted that the scientific impact factor (Web of Science) and the total number of citations of the articles published in a journal, are the most relevant parameters of the journal's significance. However, the significance of scientists is much more complicated to establish and the value of their scientific production cannot be directly reflected by the importance of the journals in which their articles are published. Evaluating the significance of scientists' accomplishments involves more complicated metrics than just their publication records. Based on a long term of academic experience, the author proposes objective criteria to estimate the scientific merit of an individual's publication record. This metric can serve as a pragmatic tool and the nidus for discussion within the readership of this journal. PMID- 29031597 TI - Lower airway microbiota and mycobiota in children with severe asthma. PMID- 29031598 TI - Clinical relevance of sensitization to hydrolyzed wheat protein in wheat sensitized subjects. PMID- 29031599 TI - Interaction of DJ-1 with Lyn is essential for IgE-mediated stimulation of human mast cells. AB - BACKGROUND: DJ-1 is a redox-sensitive protein with multiple roles in cell homeostasis, levels of which are altered in patients with mast cell (MC)-related disorders. However, whether DJ-1 can regulate human MC function is unknown. OBJECTIVE: We sought to investigate the potential role of DJ-1 in the responses of human MCs to antigen stimulation. METHODS: DJ-1 was silenced in human CD34+ derived MCs and in the LAD2 MC line by using lentiviral short hairpin RNA constructs. Release of beta-hexosaminidase, prostaglandin D2, and GM-CSF and changes in reactive oxygen species levels were measured after FcepsilonRI engagement. Enzymatic assays, sucrose density gradient centrifugation, immunoprecipitation, dot and Western blotting, and confocal imaging were performed for signaling, cellular localization, and coassociation studies. RESULTS: DJ-1 knockdown substantially reduced mediator release, as well as Lyn kinase and spleen tyrosine kinase activation and signaling through mechanisms that appeared largely unrelated to DJ-1 antioxidant activity. Following FcepsilonRI activation, nonoxidized rather than oxidized DJ-1 translocated to lipid rafts, where it associated with Lyn, an interaction that appeared critical for maximal Lyn activation and initiation of signaling. Using purified recombinant proteins, we demonstrated that DJ-1 directly bound to Lyn but not to other Src kinases, and this interaction was specific for human but not mouse proteins. In addition, DJ-1 reduced Src homology 2 domain-containing phosphatase 2 phosphatase activity by scavenging reactive oxygen species, thus preventing spleen tyrosine kinase dephosphorylation and perpetuating MC signaling. CONCLUSION: We demonstrate a novel role for DJ-1 in the early activation of Lyn by FcepsilonRI, which is essential for human MC responses and provides the basis for an alternative target in allergic disease therapy. PMID- 29031600 TI - Transcriptional determinants of individualized inflammatory responses at anatomically separate sites. PMID- 29031601 TI - Enhancing Generalization of Visuomotor Adaptation by Inducing Use-dependent Learning. AB - Learning a motor task in one condition typically generalizes to another, although it is unclear why it generalizes substantially in certain situations, but only partially in other situations (e.g., across movement directions and motor effectors). Here, we demonstrate that generalization of motor learning across directions and effectors can be enhanced substantially by inducing use-dependent learning, that is, by having subjects experience motor actions associated with a desired trajectory repeatedly during reaching movements. In Experiments 1 and 2, healthy human adults adapted to a visuomotor rotation while concurrently experiencing repetitive passive movements guided by a robot. This manipulation increased the extent of generalization across movement directions (Expt. 1) and across the arms (Expt. 2) by up to 50% and 42%, respectively, indicating crucial contribution of use-dependent learning to motor generalization. In Experiment 3, we applied repetitive transcranial magnetic stimulation (rTMS) to the left primary motor cortex (M1) of the human subjects prior to passive training with the right arm to increase cortical excitability. This intervention resulted in increased motor-evoked potentials (MEPs) and decreased short-interval intracortical inhibition (SICI) in the rTMS group, but not in the sham group. These changes observed in the rTMS group were accompanied by enhanced generalization of visuomotor adaptation across the arms, which was not the case in the sham group. Collectively, these findings confirm the involvement of M1 in use-dependent learning, and suggest that use-dependent learning can contribute not only to motor learning, but also to motor generalization. PMID- 29031602 TI - Microstructural MRI Basis of the Cognitive Functions in Patients with Spinocerebellar Ataxia Type 2. AB - Spinocerebellar ataxia type 2 (SCA2) is an autosomal dominant neurodegenerative disease involving the cerebellum. The particular atrophy pattern results in some typical clinical features mainly including motor deficits. In addition, the presence of cognitive impairments, involving language, visuospatial and executive functions, has been also shown in SCA2 patients and it is now widely accepted as a feature of the disease. The aim of the study is to investigate the microstructural patterns and the anatomo-functional substrate that could account for the cognitive symptomatology observed in SCA2 patients. In the present study, diffusion tensor imaging (DTI) based-tractography was performed to map the main cerebellar white matter (WM) bundles, such as Middle and Superior Cerebellar Peduncles, connecting cerebellum with higher order cerebral regions. Damage related diffusivity measures were used to determine the pattern of pathological changes of cerebellar WM microstructure in patients affected by SCA2 and correlated with the patients' cognitive scores. Our results provide the first evidence that WM diffusivity is altered in the presence of the cerebellar cortical degeneration associated with SCA2 thus resulting in a cerebello-cerebral dysregulation that may account for the specificity of cognitive symptomatology observed in patients. PMID- 29031604 TI - Sex Mediates the Effects of High-Definition Transcranial Direct Current Stimulation on "Mind-Reading". AB - Sex differences in social cognitive ability are well established, including measures of Theory of Mind (ToM). The aim of this study was to investigate if sex mediates the effects of high-definition transcranial direct current stimulation (HD-tDCS) administered to a key hub of the social brain (i.e., the dorsomedial prefrontal cortex, dmPFC) on the Reading the Mind in the Eyes Test (RMET). Forty healthy young adults (18-35 years) were randomly allocated to receive either anodal or cathodal HD-tDCS in sham HD-tDCS controlled, double blind designs. In each of the two sessions, subjects completed the RMET. Anodal stimulation to the dmPFC increased accuracy on the RMET in females only. To assure regional specificity we performed a follow-up study stimulating the right temporoparietal junction and found no effect in either sex. The current study is the first to show improved performance on the RMET after tDCS to the dmPFC in females only. The polarity-specific effects and use of focal HD-tDCS provide evidence for sex dependent differences in dmPFC function in relation to the RMET. Future studies using tDCS to study or improve ToM, need to consider sex. PMID- 29031603 TI - Xanthurenic Acid Formation from 3-Hydroxykynurenine in the Mammalian Brain: Neurochemical Characterization and Physiological Effects. AB - Xanthurenic acid (XA), formed from 3-hydroxykynurenine (3-HK) in the kynurenine pathway of tryptophan degradation, may modulate glutamatergic neurotransmission by inhibiting the vesicular glutamate transporter and/or activating Group II metabotropic glutamate receptors. Here we examined the molecular and cellular mechanisms by which 3-HK controls the neosynthesis of XA in rat, mouse and human brain, and compared the physiological actions of 3-HK and XA in the rat brain. In tissue homogenates, XA formation from 3-HK was observed in all three species and traced to a major role of kynurenine aminotransferase II (KAT II). Transamination of 3-HK to XA was also demonstrated using human recombinant KAT II. Neosynthesis of XA was significantly increased in the quinolinate-lesioned rat striatum, indicating a non-neuronal localization of the process. Studies using rat cortical slices revealed that newly produced XA is rapidly released into the extracellular compartment, and that XA biosynthesis can be manipulated experimentally in the same way as the production of kynurenic acid from kynurenine (omission of Na+ or glucose, depolarizing conditions, or addition of 2-oxoacids). The synthesis of XA from 3-HK was confirmed in vivo by striatal microdialysis. In slices from the rat hippocampus, both 3-HK and XA reduced the slopes of dentate gyrus field EPSPs. The effect of 3-HK was reduced in the presence of the KAT inhibitor aminooxyacetic acid. Finally, both 3-HK and XA reduced the power of gamma oscillatory activity recorded from the hippocampal CA3 region. Endogenous XA, newly formed from 3-HK, may therefore play a physiological role in attentional and cognitive processes. PMID- 29031605 TI - A waterborne outbreak of multiple diarrhoeagenic Escherichia coli infections associated with drinking water at a school camp. AB - BACKGROUND: In June 2015, a local public health laboratory was notified that students had developed gastroenteritis symptoms after attending a camp. An outbreak investigation was conducted to determine the extent and cause of the outbreak. METHOD: A retrospective cohort study was conducted to determine the correlations between the illness and specific exposures at the school camp. All attendees were interviewed with a standard questionnaire that addressed clinical symptoms, food consumption, and environmental exposures. Clinical specimens were cultured using standard microbiological methods for bacterial and viral pathogens. The genetic relationships of all isolates were determined using pulsed field gel electrophoresis (PFGE). RESULTS: A total 188 patients with symptoms of diarrhoea, abdominal pain, and nausea were identified. The completed questionnaires suggested that the consumption of drinking water was likely to be linked to this outbreak. Using microbiological methods, enterohaemorrhagic Escherichia coli, enteropathogenic E. coli, and enteroaggregative E. coli were isolated, and the isolates from both patient stool and environmental water samples displayed indistinguishable XbaI-PFGE patterns. The water system in the camp used groundwater drawn from a private underground reservoir for cooking and drinking. The environmental investigation revealed some problems with the water supply system, such as the use of inappropriate filters in the water purifier and a defect in the pipeline between the reservoir and the chlorination device. CONCLUSIONS: This outbreak points to the importance of drinking water quality management in group facilities where underground water is used and emphasizes the need for periodic sanitation and inspection to prevent possible waterborne outbreaks. PMID- 29031606 TI - An acute gastroenteritis outbreak caused by GII.P16-GII.2 norovirus associated with airborne transmission via the air conditioning unit in a kindergarten in Lianyungang, China. AB - Noroviruses are a common cause of acute gastroenteritis outbreaks in institutions including schools and kindergartens around the world. An outbreak caused by GII.P16-GII.2 norovirus in a kindergarten in Lianyungang, Jiangsu Province, China is reported here. An epidemiological investigation was conducted, and pathogen detection was performed. The descriptive analysis indicated that this outbreak in middle class 1 had a point source. Twenty cases of acute gastroenteritis occurred in this class within a period of 8.5h; the attack rate was 52.6% (20/38). Airborne transmission via the air conditioning unit in a confined restroom could have played a critical role in this outbreak. Sequence analysis of GII-positive samples confirmed that the norovirus GII.P16-GII.2 variant was the etiological agent of this outbreak. PMID- 29031607 TI - Hearing Without Neuroglobin. AB - Neuroglobin (Ngb) is a member of the globin family of respiratory proteins, which was recently observed in many neurons of the auditory pathways. Up to now, however, nothing was known about the role of Ngb in hearing processes. We therefore studied auditory function by recording distortion-product otoacoustic emissions (DPOAE) and auditory brainstem responses (ABRs) in wild-type (C57BL/6N) and Ngb-knockout mice. In KO mice, DPOAE thresholds were moderately augmented in the range of 5-18 kHz, reaching statistical significance at 8 and 10 kHz, while the ABR thresholds were not different between groups. The activation of the efferent system by an additional noise given to the contralateral ear resulted in an increased f2-f1-emission level only in WT animals. A noise exposure resulted in similar acute threshold shifts in the DPOAE and ABR of both animal groups. The recovery of hearing function, expressed by decreased DPOAE thresholds, was not significantly different between groups after four days and after four weeks. ABR recordings showed that threshold shifts elicited by noise-trauma were slightly better revised in wild-type mice. While ABR amplitudes were similar in both groups before noise overexposure, four weeks after trauma a moderate but statistically significant decrease of the latest peak-to-peak response amplitude (originating in the inferior colliculus) was observed in KO mice. Our results suggest that the lack of Ngb, at least in the model used in the present study, results in only marginal deficits in hearing ability. A putative functional role of Ngb in the efferent system warrants further studies. PMID- 29031608 TI - Steroidogenesis: Unanswered Questions. AB - Until the mid-1980s studies of steroidogenesis largely depended on identifying steroid structures and measuring steroid concentrations in body fluids. The molecular biology revolution radically revolutionized studies of steroidogenesis with the cloning of known steroidogenic enzymes, by identifying novel factors, and delineating the genetic basis of known and newly discovered diseases. Unfortunately, this dramatic success has led many young research-oriented endocrinologists to regard steroidogenesis as a 'solved area'. However, many important and exciting questions remain, especially concerning the mechanisms of cholesterol delivery to the steroidogenic machinery, the biochemistry of androgen synthesis, the regulation and biological role of adrenarche, fetal adrenal development and involution, the roles of steroids made in 'extraglandular' cells, and the search for genetic disorders. This review outlines some of these questions, but this list is necessarily incomplete. PMID- 29031609 TI - Multi-atlas-based segmentation of prostatic urethra from planning CT imaging to quantify dose distribution in prostate cancer radiotherapy. AB - BACKGROUND AND PURPOSE: Segmentation of intra-prostatic urethra for dose assessment from planning CT may help explaining urinary toxicity in prostate cancer radiotherapy. This work sought to: i) propose an automatic method for urethra segmentation in CT, ii) compare it with previously proposed surrogate models and iii) quantify the dose received by the urethra in patients treated with IMRT. MATERIALS AND METHODS: A weighted multi-atlas-based urethra segmentation method was devised from a training data set of 55 CT scans of patients receiving brachytherapy with visible urinary catheters. Leave-one-out cross validation was performed to quantify the error between the urethra segmentation and the catheter ground truth with two scores: the centerlines distance (CLD) and the percentage of centerline within a certain distance from the catheter (PWR). The segmentation method was then applied to a second test data set of 95 prostate cancer patients having received 78Gy IMRT to quantify dose to the urethra. RESULTS: Mean CLD was 3.25+/-1.2mm for the whole urethra and 3.7+/-1.7mm, 2.52+/-1.5mm, and 3.01+/-1.7mm for the top, middle, and bottom thirds, respectively. In average, 53% of the segmented centerlines were within a radius<3.5mm from the centerline ground truth and 83% in a radius<5mm. The proposed method outperformed existing surrogate models. In IMRT, urethra DVH was significantly higher than prostate DVH from V74Gy to V79Gy. CONCLUSION: A multi atlas-based segmentation method was proposed enabling assessment of the dose within the prostatic urethra. PMID- 29031610 TI - Characteristics of 2.5 MV beam and imaging dose to patients. AB - PURPOSE: This work provides the beam characteristics and evaluates the imaging dose to patients for a 2.5 MV portal imaging beam. METHOD AND MATERIALS: The Monte Carlo technique has been used to simulate the 2.5 MV imaging beam. Beam characteristics have been analyzed including the energy spectra and the fluence distributions as a function of position away from the beam central axis. The accuracy of a simulated beam was validated through comparisons between the Monte Carlo calculated and measured dose distributions in a water phantom. The simulated 2.5 MV beam was also used to obtain the absorbed-dose beam quality conversion factor, kQ, for absorbed dose calibration. The simulated beams were then used to evaluate the imaging dose to patients compared with that from a conventional therapeutic 6 MV beam. RESULTS: The mean energies of photons and electrons in the 2.5 MV beam are 0.48 MeV and 0.37 MeV respectively. The photon fluence decreases at 20 cm away from the central axis by only up to 30% for this flattening-filter free beam. The values of %dd curves at depth = 10 cm are 53% and 63% for 10 * 10 cm2 and 40 * 40 cm2 fields respectively. Portal imaging doses (D50 of the DVHs) to the eyes, heart and bladder from representative pairs of 2.5 MV (or 6 MV) setup images are 1.8 cGy (3.5 cGy), 1.1 cGy (2.5 cGy) and 1.0 cGy (2.4 cGy) for head, thorax and pelvis image acquisitions respectively. CONCLUSION: We provide dosimetric data, as well as estimates of organ imaging doses, for this 2.5 MV beam. When clinical default imaging protocols are used, the imaging dose from the 2.5 MV beam is about 50% of that from a 6 MV beam. The information can be used to select image procedures and to estimate organ dose from imaging procedures. PMID- 29031611 TI - Dose to mass for evaluation and optimization of lung cancer radiation therapy. AB - PURPOSE: To evaluate potential organ at risk dose-sparing by using dose-mass histogram (DMH) objective functions compared with dose-volume-histogram (DVH) objective functions. METHODS: Treatment plans were retrospectively optimized for 10 locally advanced non-small cell lung cancer patients based on DVH and DMH objectives. DMH-objectives were the same as DVH objectives, but with mass replacing volume. Plans were normalized to dose to 95% of the PTV volume (PTV D95v) or mass (PTV-D95m). For a given optimized dose, DVH and DMH were intercompared to ascertain dose-to-volume vs. dose-to-mass differences. Additionally, the optimized doses were intercompared using DVH and DMH metrics to ascertain differences in optimized plans. Mean dose to volume, Dv?, mean dose to mass, DM?, and fluence maps were intercompared. RESULTS: For a given dose distribution, DVH and DMH differ by >5% in heterogeneous structures. In homogeneous structures including heart and spinal cord, DVH and DMH are nearly equivalent. At fixed PTV-D95v, DMH-optimization did not significantly reduce dose to OARs but reduced PTV-Dv? by 0.20+/-0.2Gy (p=0.02) and PTV-DM? by 0.23+/-0.3Gy (p=0.02). Plans normalized to PTV-D95m also result in minor PTV dose reductions and esophageal dose sparing (Dv? reduced 0.45+/-0.5Gy, p=0.02 and DM? reduced 0.44+/-0.5Gy, p=0.02) compared to DVH-optimized plans. Optimized fluence map comparisons indicate that DMH optimization reduces dose in the periphery of lung PTVs. CONCLUSIONS: DVH- and DMH-dose indices differ by >5% in lung and lung target volumes for fixed dose distributions, but optimizing DMH did not reduce dose to OARs. The primary difference observed in DVH- and DMH-optimized plans were variations in fluence to the periphery of lung target PTVs, where low density lung surrounds tumor. PMID- 29031612 TI - Variants at HLA-A, HLA-C, and HLA-DQB1 Confer Risk of Psoriasis Vulgaris in Japanese. AB - Psoriasis vulgaris (PsV) is an autoimmune disease of skin and joints with heterogeneity in epidemiologic and genetic landscapes of global populations. We conducted an initial genome-wide association study and a replication study of PsV in the Japanese population (606 PsV cases and 2,052 controls). We identified significant associations of the single nucleotide polymorphisms with PsV risk at TNFAIP3-interacting protein 1and the major histocompatibility complex region (P = 3.7 * 10-10 and 6.6 * 10-15, respectively). By updating the HLA imputation reference panel of Japanese (n = 908) to expand HLA gene coverage, we fine-mapped the HLA variants associated with PsV risk. Although we confirmed the PsV risk of HLA-C*06:02 (odds ratio = 6.36, P = 0.0015), its impact was relatively small compared with those in other populations due to rare allele frequency in Japanese (0.4% in controls). Alternatively, HLA-A*02:07, which corresponds to the cysteine residue at HLA-A amino acid position 99 (HLA-A Cys99), demonstrated the most significant association with PsV (odds ratio = 4.61, P = 1.2 * 10-10). In addition to HLA-A*02:07 and HLA-C*06:02, stepwise conditional analysis identified an independent PsV risk of HLA-DQbeta1 Asp57 (odds ratio = 2.19, P = 1.9 * 10-6). Our PsV genome-wide association study in Japanese highlighted the genetic architecture of PsV, including the identification of HLA risk variants. PMID- 29031613 TI - Pathogenic mutations of the human mitochondrial citrate carrier SLC25A1 lead to impaired citrate export required for lipid, dolichol, ubiquinone and sterol synthesis. AB - Missense mutations of the human mitochondrial citrate carrier, encoded by the SLC25A1 gene, lead to an autosomal recessive neurometabolic disorder characterised by neonatal-onset encephalopathy with severe muscular weakness, intractable seizures, respiratory distress, and lack of psychomotor development, often resulting in early death. Here, we have measured the effect of all twelve known pathogenic mutations on the transport activity. The results show that nine mutations abolish transport of citrate completely, whereas the other three reduce the transport rate by >70%, indicating that impaired citrate transport is the most likely primary cause of the disease. Some mutations may be detrimental to the structure of the carrier, whereas others may impair key functional elements, such as the substrate binding site and the salt bridge network on the matrix side of the carrier. To understand the consequences of impaired citrate transport on metabolism, the substrate specificity was also determined, showing that the human citrate carrier predominantly transports citrate, isocitrate, cis-aconitate, phosphoenolpyruvate and malate. Although D-2- and L-2 hydroxyglutaric aciduria is a metabolic hallmark of the disease, it is unlikely that the citrate carrier plays a significant role in the removal of hydroxyglutarate from the cytosol for oxidation to oxoglutarate in the mitochondrial matrix. In contrast, computer simulations of central metabolism predict that the export of citrate from the mitochondrion cannot be fully compensated by other pathways, restricting the cytosolic production of acetyl-CoA that is required for the synthesis of lipids, sterols, dolichols and ubiquinone, which in turn explains the severe disease phenotypes. PMID- 29031614 TI - High Mobility Group Box 1 is a novel pathogenic factor and a mechanistic biomarker for epilepsy. AB - Approximately 30% of epilepsy patients experience seizures that are not controlled by the available drugs. Moreover, these drugs provide mainly a symptomatic treatment since they do not interfere with the disease's mechanisms. A mechanistic approach to the discovery of key pathogenic brain modifications causing seizure onset, recurrence and progression is instrumental for designing novel and rationale therapeutic interventions that could modify the disease course or prevent its development. In this regard, increasing evidence shows that neuroinflammation is a pathogenic factor in drug-resistant epilepsies. The High Mobility Group Box 1 (HMGB1)/Toll-like receptor 4 axis is a key initiator of neuroinflammation following brain injuries leading to epilepsy, and its activation contributes to seizure mechanisms in animal models. Recent findings have shown dynamic changes in HMGB1 and its isoforms in the brain and blood of animals exposed to acute brain injuries and undergoing epileptogenesis, and in surgically resected epileptic foci in humans. HMGB1 isoforms reflect different pathophysiological processes, and the disulfide isoform, which is generated in the brain during oxidative stress, is implicated in seizures, cell loss and cognitive dysfunctions. Interfering with disulfide HMGB1-activated cell signaling mediates significant therapeutic effects in epilepsy models. Moreover, both clinical and experimental data suggest that HMGB1 isoforms may serve as mechanistic biomarkers for epileptogenesis and drug-resistant epilepsy. These novel findings suggest that the HMGB1 system could be targeted to prevent seizure generation and may provide clinically useful prognostic biomarkers which may also predict the patient's response to therapy. PMID- 29031615 TI - The leukotriene receptor antagonist pranlukast attenuates airway remodeling by suppressing TGF-beta signaling. AB - BACKGROUND/OBJECTIVE: Asthma is a chronic airway disease characterized by airway eosinophilic inflammation and remodeling, which are associated with a loss in lung function. Although both contribute significantly to asthma pathogenesis, mechanistic studies and drug discovery have focused on inflammatory targets. In this study, we investigated the effect of the leukotriene receptor antagonist pranlukast on allergic airway inflammation and remodeling in vivo and in vitro. METHOD: Four groups of female BALB/c mice (control; ovalbumin [OVA]-sensitized and -challenged; dimethyl sulfoxide [DMSO]-treated OVA; and pranlukast-treated OVA) were examined. Lung pathology, cytokine production, and airway hyperresponsiveness (AHR) measurements were compared among these groups. A human fetal lung fibroblast HFL-1 cell line was used in the peribranchial fibrosis analysis. RESULTS: OVA-sensitized and -challenged mice exhibited allergic airway inflammation and significant increases in Th2 cytokines. Pranlukast-treated mice showed significant attenuation of allergic airway inflammation. The pranlukast treatment decreased AHR and attenuated airway remodeling to goblet cell hyperplasia, collagen deposition, alpha-smooth muscle actin expression, and pro fibrotic gene expression. We further demonstrated that pranlukast not only inhibited transforming growth factor-beta 1 (TGF-beta1)-induced Smad signaling in human fetal lung fibroblast cells but also simultaneously reduced collagen synthesis and pro-fibrotic gene expression. CONCLUSIONS: The leukotriene receptor antagonist pranlukast can reduce airway inflammation and remodeling by inhibiting TGF-beta/Smad signaling in an OVA-sensitized and -challenged asthma mouse model, thus suppressing AHR. PMID- 29031616 TI - Factors affecting the selection of an inhaler device for COPD and the ideal device for different patient profiles. Results of EPOCA Delphi consensus. AB - BACKGROUND: This study aimed to identify the relevant factors for the choice of an inhaler device by physicians and the selection of the most important characteristics of a device according to different characteristics of patients with COPD. METHOD: In this two-round Delphi survey, 96 Spanish COPD-expert pulmonologists completed an internet-based, self-administered questionnaire, which consisted of a first part with 19 items related to the prioritization of the drug or the device, the experience, ability and preference of the patient, and the experience and preferences of the healthcare professional. For each item, responses were grouped into three categories based on a 9-point Likert-type scale, calculating the response frequency and the degree of consensus. The second part included 18 items related to the inhalation devices with the aim to identify the main characteristics of a device for 8 different profiles of patients with COPD. RESULTS: Experts considered that the selection of a device was relevant when choosing the treatment for COPD patients, although 62.5% of them prioritised the selection of the drug over the device. The experience of the patient (89.6%) and his/her ability to handle the device (97.9%), together with coordination (96.9%), ability to learn (87.5%) and adherence to therapy (84.4%) were the main aspects considered in the selection of inhalation device. The panel identified Respimat(r) as the most adequate device for patients with either low inspiratory flow or severely impaired lung function and Spiromax(r) for patients with either impaired fine motor skills or older than 70 years. CONCLUSIONS: Selection of the inhalation device is recognized by specialists as a strategic therapeutic decision and should be based on the characteristics of the individual patient. Some devices may be more adequate for different patient profiles. PMID- 29031617 TI - Steroid sparing effects of doxofylline. AB - Glucocorticosteroids are widely used in the treatment of asthma and chronic obstructive pulmonary disease (COPD). However, there are growing concerns about the side effect profile of this class of drug, particularly an increased risk of pneumonia. Over the last two decades there have been many attempts to find drugs to allow a reduction of glucocorticosteroids, including xanthines such as theophylline. Use of xanthines has been shown to lead to a reduction in the requirement for glucocorticosteroids, although xanthines also have a narrow therapeutic window limiting their wider use. Doxofylline is another xanthine that has been shown to be of clinical benefit in patients with asthma or COPD, but to have a wider therapeutic window than theophylline. In the present study we have demonstrated that doxofylline produces a clear steroid sparing effect in both an allergic and a non-allergic model of lung inflammation. Thus, we have shown that concomitant treatment with a low dose of doxofylline and a low dose of the glucocorticosteroid dexamethasone (that alone had no effect) significantly reduced both allergen-induced eosinophil infiltration into the lungs of allergic mice, and lipopolysaccharide (LPS)-induced neutrophil infiltration into the lung, equivalent to a higher dose of each drug. Our results suggest that doxofylline demonstrates significant anti-inflammatory activity in the lung which can result in significant steroid sparing activity. PMID- 29031618 TI - Characterization of the inhibitory activity of natural tanshinones from Salvia miltiorrhiza roots on protein tyrosine phosphatase 1B. AB - Protein tyrosine phosphatase 1B (PTP1B) is a negative regulator that plays an important role in many signaling pathways, especially those associated with insulin resistance. In this study, we investigated the anti-diabetic potential of 12 natural tanshinones isolated from Salvia miltiorrhiza (S. miltiorrhiza) Bunge (Lamiaceae), deoxyneocryptotanshinone (1), grandifolia F (2), ferruginol (3), cryptotanshinone (4), tanshinone IIA (5), tanshinol B (6), tanshinone IIB (7), tanshinonal (8), methyl tanshinonate (9), 15,16-dihydrotanshinone I (10), tanshinone I (11), and dehydrodanshenol A (12) and evaluated their inhibitory activity against PTP1B. Tanshinones 4, 6 and 12 exhibited potent PTP1B inhibitory activity with IC50 values of 5.5 +/- 0.9, 4.7 +/- 0.4 and 8.5 +/- 0.5 MUM, respectively. In addition, tanshinones 1-3, 5 and 7-11 showed promising dose dependent inhibition of PTP1B over IC50 values ranging from 18.6 to 254.8 MUM. Enzyme kinetic analysis of PTP1B inhibition revealed that 4 and 6 were mixed noncompetitive type inhibitors, whereas 12 was a classical-noncompetitive type inhibitor. Furthermore, 4, 6 and 12 were docked with the PTP1B enzyme using molecular docking simulations (AutoDock 4.2) and exhibited negative binding energy (-6.4 to -8.7 kcal/mol), indicating high binding affinity to PTP1B active site residues. Structure-activity relationships (SAR) analysis revealed that structural modifications of ring A and furan or dihydrofuran ring D on the basic structure of tanshinones influenced their activity. Overall, results indicated that tanshinones from S. miltiorrhiza are potential anti-diabetic candidates that should be explored in the development of preventive and therapeutic modalities for the treatment of diabetes as well as diabetes-associated complications. PMID- 29031619 TI - Chemoprevention by artesunate in a preclinical model of colorectal cancer involves down regulation of beta-catenin, suppression of angiogenesis, cellular proliferation and induction of apoptosis. AB - Use of anti-inflammatory drugs is well known to decrease the risk of colorectal cancer, one of the most common causes of cancer related mortality. In view of anti-inflammatory property of artesunate reported in various experimental models, the present study was carried out to evaluate its efficacy in rat model where colon carcinogenesis was induced by 1, 2 dimethylhydrazine (DMH). A time course study revealed that two injections of DMH given at an interval of one week resulted in appearance of multiple plaque lesions and aberrant crypt foci in the colon with a peak effect occurring at the end of 8 weeks. An efficacy study carried out with daily oral administration of artesunate (50 and 150 mg/kg) and aspirin (60 mg/kg) showed a marked reduction in pre-neoplastic changes with a significant decrease in the number of aberrant crypt foci, crypt multiplicity and restoration of histoarchitecture. Both the drugs down regulated beta-catenin signaling, reduced the levels of angiogenic markers like VEGF, MMP-9 and inhibited cellular proliferation. The anti-cancer effect of these drugs was concomitant with the pro-apoptotic effect as revealed by increased DNA fragmentation, TUNEL positivity and Bax/Bcl2 immunoreactivity. This is the first study to evaluate the inhibitory effect of artesunate on pre-neoplastic changes in colon where its chemopreventive effect was found to be comparable to that of aspirin. Our study strengthens the previous findings and shows that it has a preventive and therapeutic potential in the treatment of colon cancer. PMID- 29031620 TI - Targeting non-small cell lung cancer with small-molecule EGFR tyrosine kinase inhibitors. AB - Epidermal growth factor (EGFR) tyrosine kinase inhibitors (TKIs), such as gefitinib and erlotinib, show excellent clinical efficacy for patients with non small cell lung cancer (NSCLC) with EGFR mutations, including Exon 19 deletion and single-point substitution, and L858R of exon 21. The reason for the reduction in effectiveness of these EGFR TKIs is the T790M gatekeeper mutation in the ATP binding pocket of Exon 20, which increases the affinity of EGFR for ATP. Newer EGFR TKIs, such as afatinib, osimertinib, rociletinib, EGF816 and ASP8273, selectively target T790M mutants, sparing wild-type EGFR. EGFR TKIs have fewer adverse effects than chemotherapy and also improve progression-free survival. Combination therapy of EGFR TKIs with anti-EGFR antibodies is recommended for overcoming the problem of resistance to some extent. This review could help medicinal chemists to design novel EGFR TKIs against NSCLC. PMID- 29031621 TI - Medicinal chemistry in drug discovery in big pharma: past, present and future. AB - The changes in synthetic and medicinal chemistry and related drug discovery science as practiced in big pharma over the past few decades are described. These have been predominantly driven by wider changes in society namely the computer, internet and globalisation. Thoughts about the future of medicinal chemistry are also discussed including sharing the risks and costs of drug discovery and the future of outsourcing. The continuing impact of access to substantial computing power and big data, the use of algorithms in data analysis and drug design are also presented. The next generation of medicinal chemists will communicate in ways that reflect social media and the results of constantly being connected to each other and data. PMID- 29031622 TI - Haspin: a promising target for the design of inhibitors as potent anticancer drugs. AB - Protein kinases constitute a large group of enzymes in eukaryotes and have an important role in many cellular processes. Several of these proteins are active kinases, such as haploid germ cell-specific nuclear protein kinase (Haspin), an atypical eukaryotic protein kinase that lacks sequence similarity with other eukaryotic protein kinases. Haspin is a serine/threonine kinase that associates with chromosome and phosphorylates threonine 3 of histone 3 during mitosis. Haspin overexpression or deletion results in defective mitosis. It has been shown that Haspin inhibitors have potent anti-tumoral effects. Given that the only Haspin substrate is threonine 3 of histone 3, inhibition of Haspin might have fewer adverse effects compared with other anticancer agents. Here, we highlight the chemical structures and actions of currently known Haspin inhibitors. PMID- 29031623 TI - Molecular dynamics simulation strategies for designing carbon-nanotube-based targeted drug delivery. AB - The carbon nanotube (CNT)-based target-specific delivery of drugs, or other molecular cargo, has emerged as one of the most promising biomedical applications of nanotechnology. To achieve efficient CNT-based drug delivery, the interactions between the drug, CNT and biomolecular target need to be properly optimized. Recent advances in the computer-aided molecular design tools, in particular molecular dynamics (MD) simulation studies, offer an appropriate low-cost approach for such optimization. This review highlights the various potential MD approaches for the simulation of CNT interactions with cell membranes while emphasizing various methods of cellular internalization and toxicities of CNTs to build new strategies for designing rational CNT-based targeted drug delivery to circumvent the limitations associated with the various clinically available nonspecific therapeutic agents. PMID- 29031624 TI - Impact of timing of cardiac arrest during hospitalization on survival outcomes and subsequent length of stay. AB - BACKGROUND: In-hospital cardiac arrest (IHCA) is common and often fatal. However, the association between timing of cardiac arrest and likelihood of survival to discharge, neurological status, and subsequent hospital length of stay (LOS) is unknown. METHODS: Within the Get-With-The-Guidelines Resuscitation registry, we identified 175,904 patients between 2000 and 2014 with an IHCA. Time from admission to IHCA was categorized as <3, 3-7, or >7days from admission. Multivariable hierarchical logistic regression models examined the association between timing of IHCA and survival to discharge, and, among survivors, favorable neurological survival (cerebral performance category score of 1) and LOS after IHCA. RESULTS: Overall, 83,811 (47.6%) of IHCAs occurred <3days from admission, whereas 47,713 (27.1%) and 44,380 (25.5%) occurred between 3 and 7 and >7days from admission, respectively. Cardiac arrests occurring later during the hospitalization were associated with lower survival ([reference: <3days]; for 3 7days: adjusted OR 0.93 [0.90-0.96]; for >7days: adjusted OR 0.89 [0.86-0.92]; P<0.01) and favorable neurological survival ([reference: <3days]; for 3-7days: adjusted OR 0.83 [0.77-0.89], for >7days: adjusted OR 0.55 [0.51-0.59]; P<0.01). Among survivors, later timing of IHCA was associated with longer subsequent LOS ([reference: <3days]; for 3-7days: 2.7 additional days [2.2-3.2]; for >7days: 6.8 additional days [6.3-7.3]; P<0.001). CONCLUSION: Most IHCA occur after 3 hospitalization days. Patients with IHCA after 3 hospital days had lower rates of survival to discharge, and, among survivors, lower rates of favorable neurological survival and longer duration of hospitalization from the time of cardiac arrest. PMID- 29031625 TI - Ideal (i) CPR: Looking beyond shadows in a cave. AB - Survival rates after cardiac arrest have shown minimal improvement in the last 60 years. However, in some forward-thinking cities and hospitals, out-of and in hospital cardiac arrest survival rates exceed 20% and 40% respectively. These beacons of hope can enlighten us, providing a clearer vision of what it takes to provide Ideal cardiopulmonary resuscitation. To make progress in a field that has seemingly stagnated for too many decades, we must be open to new ideas and develop bundles of care that work in communities with varying EMS systems and various existing infrastructure to bring the best practices to the rest of the country. PMID- 29031626 TI - A better understanding of lay providers' CPR performance during resuscitation of out-of-hospital cardiac arrest. PMID- 29031627 TI - Development of a SYBR green-based real-time quantitative PCR assay to detect PCV3 in pigs. AB - Porcine circovirus 3 (PCV3) has been reported in cases of porcine dermatitis and nephropathy syndrome, reproductive failure, cardiac and multi-systemic inflammation. A SYBR green-based real-time quantitative PCR (qPCR) assay was established in this study to detect PCV3 in 203 clinical samples from suckling piglets affected by congenital tremors in China. The limit of detection (LOD) of PCV3 was 1.73*104 copies/MUL for gel electrophoresis and 1.73*102 copies/MUL for SYBR green-based real-time qPCR. The melt curve analysis showed a single melt peak at 82.5 degrees C.The intra-assay coefficient of variation was up to 1.83% and the inter-assay coefficient of variation was up to 2.27%. The PCV3 positive detection rate of 203 clinical samples for the SYBR green-based real-time qPCR and the conventional PCR was 86.70% (176/203) and 26.60% (54/203), respectively. Each tissue detected in the SYBR green-based real-time qPCR showed a higher positive rate than that detected in the conventional PCR. These results indicated that the SYBR green-based real-time qPCR assay is a powerful method with high sensitivity, specificity and reproducibility for epidemiological investigations of PCV3. PMID- 29031628 TI - Ultrasound and the Complete Urologist Part 1: Methodology. AB - Computed tomography (CT) scanning is considered as the imaging study of choice for asymptomatic microhematuria according to the American Urological Association guidelines. For those patients with persistence of microhematuria after a negative initial examination, the guidelines suggest repeating the evaluation including CT scanning within 3 to 5 years. However, the cost and risk involved for utilizing this technology going forward is an issue, especially when the yield of finding significant pathology on subsequent imaging studies is exceedingly low. To minimize those concerns, I have proposed incorporating the utilization of ultrasound rather than the guideline-recommended CT for reasons and considerations to be discussed. In addition, I propose extending the use of ultrasound beyond evaluation of asymptomatic microhematuria to the routine urologic physical examination as it is superior to the current standard of palpation and percussion. The original concept of applying sound to a physical examination led to the technique of percussion. Technological advancement has taken the same sound, converted it to a digital image, and allowed us to see what we hear to achieve a greater diagnostic accuracy. The literature on this subject is reviewed and demonstrates support for just such a change in the delivery of urologic healthcare. I conclude by proposing that the quality of urologic care can be enhanced during a routine urologic physical examination through upgrading the technique of palpation and percussion by routinely utilizing ultrasound, creating the Complete Urologist. PMID- 29031629 TI - Ultrasound and the Complete Urologist Part 2: Outcomes. AB - Outcome studies help establish the benefits of tests or procedures that can change the delivery of medical care. Through this discourse, the current status of outcomes with respect to the use of ultrasound imaging for AMH as well as its general use during a routine urologic physical examination are explored. The changes in today's health care environment focus on cost reduction and outcomes that produce value in the context of patient satisfaction. The question is whether we have to wait for outcome results (that can take a lengthy period of time to achieve) before the benefits produced by ultrasound can be applied. This report reviews the literature and the role ultrasound can play in today's urologic health care environment. Supportive evidence demonstrates the value that ultrasound use brings to the urologic examining table for AMH and to daily urologic practice to the benefit of both patient and physician. PMID- 29031630 TI - The ZtVf1 transcription factor regulates development and virulence in the foliar wheat pathogen Zymoseptoria tritici. AB - The dimorphic fungal pathogen, Zymoseptoria tritici undergoes discrete developmental changes to complete its life cycle on wheat. Molecular mechanisms underlying morphogenesis during infection process of Z. tritici are poorly understood. In this study, we have investigated the role of ZtVf1 gene encoding a transcription factor belonging to C2-H2 subfamily. In planta assays revealed that ZtVf1 is required for virulence. Reduced necrotic lesions and low pycnidia density within the lesions resulted in significantly reduced virulence of ZtVf1 mutants. Cytological analysis showed that the impaired virulence of ZtVf1 mutants attributed to reduced penetration and colonization along with hampered pycnidia differentiation. In vitro phenotyping showed that ZtVf1 deletion affects hyphal branching and biomass production suggesting that the reduced tissue colonization by the ZtVf1 mutant might be due to lower hyphal branching and less fungal biomass production. In addition, the majority of infected substomatal cavities by the ZtVf1 mutant filled with compacted mycelia mat that did not differentiate to mature pycnidia indicating that the impaired melanization negatively affected pycnidia formation and maturation. The ZtVf1 might target multiple genes belonging to different cellular processes whose identification is of eminent interest to increase our understanding of this pathosystem. Overall, the data provided in this study indicates that attenuated pathogenicity of ZtVf1 mutant is due to involvement of this gene in the regulation of both early and late stages of infection. PMID- 29031631 TI - Most probable number with visual based LAMP for the quantification of reductive dehalogenase genes in groundwater samples. AB - The remediation of chlorinated solvent contaminated sites frequently involves bioaugmentation with mixed cultures containing Dehalococcoides mccartyi. Their activity is then examined by quantifying reductive dehalogenase (RDase) genes. Recently, we described a rapid, low cost approach, based on loop mediated isothermal amplification (LAMP), which allowed for the visual detection of RDase genes from groundwater. In that study, samples were concentrated (without DNA extraction), incubated in a water bath (avoiding the use of a thermal cycler) and amplification was visualized by the addition of SYBR green (post incubation). Despite having a detection limit less than the threshold recommended for effective remediation, the application of the assay was limited because of the semi-quantitative nature of the data. Moreover, the assay was prone to false positives due to the aerosolization of amplicons. In this study, deoxyuridine triphosphate (dUTP) and uracil DNA glycosylase (UNG) were incorporated into the assay to reduce the probability of false positives. Optimization experiments revealed a UNG concentration of 0.2units per reaction was adequate for degrading trace levels of AUGC based contamination (~1.4*104 gene copies/reaction) without significant changes to the detection limit (~100 gene copies/reaction). Additionally, the optimized assay was used with the most probable number (MPN) method to quantify RDase genes (vcrA and tceA) in multiple groundwater samples from a chlorinated solvent contaminated site. Using this approach, gene concentrations were significantly correlated to concentrations obtained using traditional methods (qPCR and DNA templates). Although the assay underestimated RDase genes concentrations, a strong correlation (R2=0.78 and 0.94) was observed between the two data sets. The regression equations obtained will be valuable to determine gene copies in groundwater using the newly developed, low cost and time saving method. PMID- 29031632 TI - Separate transcriptionally regulated pathways specify distinct classes of sister dendrites in a nociceptive neuron. AB - The dendritic processes of nociceptive neurons transduce external signals into neurochemical cues that alert the organism to potentially damaging stimuli. The receptive field for each sensory neuron is defined by its dendritic arbor, but the mechanisms that shape dendritic architecture are incompletely understood. Using the model nociceptor, the PVD neuron in C. elegans, we determined that two types of PVD lateral branches project along the dorsal/ventral axis to generate the PVD dendritic arbor: (1) Pioneer dendrites that adhere to the epidermis, and (2) Commissural dendrites that fasciculate with circumferential motor neuron processes. Previous reports have shown that the LIM homeodomain transcription factor MEC-3 is required for all higher order PVD branching and that one of its targets, the claudin-like membrane protein HPO-30, preferentially promotes outgrowth of pioneer branches. Here, we show that another MEC-3 target, the conserved TFIIA-like zinc finger transcription factor EGL-46, adopts the alternative role of specifying commissural dendrites. The known EGL-46 binding partner, the TEAD transcription factor EGL-44, is also required for PVD commissural branch outgrowth. Double mutants of hpo-30 and egl-44 show strong enhancement of the lateral branching defect with decreased numbers of both pioneer and commissural dendrites. Thus, HPO-30/Claudin and EGL-46/EGL-44 function downstream of MEC-3 and in parallel acting pathways to direct outgrowth of two distinct classes of PVD dendritic branches. PMID- 29031633 TI - Translation of noncoding RNAs: Focus on lncRNAs, pri-miRNAs, and circRNAs. AB - Mammalian genome is pervasively transcribed, producing large number of noncoding RNAs (ncRNAs), including long noncoding RNAs (lncRNAs), primary miRNAs (pri miRNA), and circular RNAs (circRNAs). The translation of these ncRNAs has long been overlooked. Increasing studies, however, based on ribosome profiling in various organisms provide important clues to unanticipated translation potential of lncRNAs. Moreover, a few functional peptides encoded by lncRNAs and pri-miRNAs underline the significance of their translation. Recently, several novel researches also evidence the translation of endogenous circRNAs. Given the functional significance exemplified by peptides translated by some ncRNAs and their pervasive translation, it is not too far-fetched to image that abnormal translation of ncRNAs may contribute to human diseases. Through challenging, deciphering ncRNA translation is required for comprehensive understanding of biology and medicine. In this review, we firstly present evidence concerning translation potential of lncRNAs and go on to introduce a few functional short peptides encoded by lncRNAs. Then, salient observations showing translation of pri-miRNAs and circRNAs are described in detail. We end by discussing the impact of ncRNA translation beyond producing peptides and referring briefly to the potential role of abnormal ncRNA translation in human diseases. PMID- 29031634 TI - Fecal bacteria from treatment-naive Crohn's disease patients can skew helper T cell responses. AB - Many studies have demonstrated that the inflamed mucosa of Crohn's disease (CD) patients presented a disturbed gut commensal community, and the shift in microbial composition and species variety is associated with disease severity. To establish a link between changes in the intestinal bacterial composition and the alteration of inflammation, we obtained fecal bacteria from CD patients and non CD controls. The bacteria were then used to stimulate the peripheral blood mononuclear cells (PBMCs) from one non-CD individual. We found that the frequency of IFN-gamma- and IL-17-expressing CD4 T cells was significantly higher after stimulation with CD bacteria than with non-CD bacteria, while the frequency of IL 4- and IL-10-expressing CD4 T cells was significantly decreased after stimulation with CD bacteria. A similar trend was observed in the level of cytokine expression and transcription expression. However, this difference was not clear cut, as overlapping regions were observed between the two groups. With longer stimulation using CD bacteria, the skewing toward Th1/Th17 responses were further increased. This increase depended on the presence of monocytes/macrophages. Interestingly, we also found that B cells presented an inhibitory effect in CD bacteria-mediated skewing toward Th1/Th17 cells and promoted IL-10 secretion in CD bacteria-stimulated PBMCs. Together, our results demonstrated that CD bacteria could promote Th1/Th17 inflammation in a host factor-independent fashion. PMID- 29031635 TI - Correlation of altered expression of a long non-coding RNA, NEAT1, in peripheral blood mononuclear cells with dengue disease progression. AB - The association of long non-coding RNAs (lncRNAs) with dengue disease progression is currently unknown. Therefore, the present study aimed to identify lncRNAs in different categories of dengue patients and evaluate their association with dengue disease progression. Herein, we examined the expression profiles of lncRNAs and protein-coding genes between other febrile illness (OFI) and different grade of dengue patients through high-throughput RNA sequencing. We identified Nuclear Enriched Abundant Transcript 1 (NEAT1) as one of the differentially expressed lncRNAs (adjusted P <= 0.05 and log-fold change >= 2) and subsequently validated the expression by qRT-PCR. The co-expression analysis further revealed that NEAT1 and the coding gene IFI27 were highly co-expressed and negatively correlated with dengue severity. Using regression analysis, we observed that NEAT1 expression was significantly dependent on disease progression (Coefficient = -0.27750, SE Coefficient = 0.07145, and t = -3.88).Further, receiver operating characteristic (ROC) curve revealed that NEAT1 expression could discriminate DI from DS (sensitivity and specificity of 100% (95%CI: 85.69 97.22) and area under the curve (AUC) = 0.97). Overall, the results of this study offer the first experimental evidence demonstrating the correlation between lncRNAs and severe dengue phenotype. Monitoring NEAT1and IFI27 expression in PBMC may be useful in understanding dengue virus-induced disease progression. PMID- 29031636 TI - Rotavirus vaccination takes seasonal signature of childhood diarrhea back to pre sanitation era in Brazil. AB - OBJECTIVES: This study aimed to examine the previously unknown long-term spatio temporal patterns in diarrheal morbidity and mortality across age groups and geography in Brazil under the light of evolving socioeconomic factors and interventions. METHODS: Nationwide mortality (1979-2014) and hospitalization (1998-2014) data were obtained from the Brazilian Ministry of Health. Analyses of long-term secular trends and seasonality of diarrheal morbidity and mortality were performed in EPIPOI (www.epipoi.info). RESULTS: For most states, the primary peak in mortality risk among children under 5 years occurred from December-April (summer/early autumn) from 1979-1988. From 2000-2005 (before the 2006 implementation of rotavirus vaccination), the pattern switched to June-October (winter/early spring). By 2007-2014, the peak in mortality shifted back towards summer/early autumn. A similar pattern was observed for hospitalizations. These patterns were particularly apparent in non-equatorial regions of the country. In contrast, the risk of diarrhea-related death among older children (5-19 years) did not demonstrate well-defined seasonality or spatial patterns. CONCLUSIONS: Rotavirus vaccination policies were associated with a shift in the timing of seasonal peaks in children under 5, reminiscent of the summer diarrhea period common decades prior. Additionally, young children were shown to have distinct disease patterns compared to other age groups, suggesting different etiologies. PMID- 29031637 TI - Molecular epidemiology of multi- and extensively-drug-resistant Mycobacterium tuberculosis in Ireland, 2001-2014. AB - OBJECTIVES: The primary objective of this work was to examine the acquisition and spread of multi-drug resistant (MDR) tuberculosis (TB) in Ireland. METHODS: All available Mycobacterium tuberculosis complex (MTBC) isolates (n = 42), from MDR TB cases diagnosed in Ireland between 2001 and 2014, were analysed using phenotypic drug-susceptibility testing, Mycobacterial-Interspersed-Repetitive Units Variable-Number Tandem-Repeat (MIRU-VNTR) genotyping, and whole-genome sequencing (WGS). RESULTS: The lineage distribution of the MDR-TB isolates comprised 54.7% Euro-American, 33.3% East Asian, 7.2% East African Indian, and 4.8% Indo-Oceanic. A significant association was identified between the East Asian Beijing sub-lineage and the relative risk of an isolate being MDR. Over 75% of MDR-TB cases were confirmed in non-Irish born individuals and 7 MIRU-VNTR genotypes were identical to clusters in other European countries indicating cross border spread of MDR-TB to Ireland. WGS data provided the first evidence in Ireland of in vivo microevolution of MTBC isolates from drug-susceptible to MDR, and from MDR to extensively-drug resistant (XDR). In addition, they found that the katG S315T isoniazid and rpoB S450L rifampicin resistance mutations were dominant across the different MTBC lineages. CONCLUSIONS: Our molecular epidemiological analyses identified the spread of MDR-TB to Ireland from other jurisdictions and its potential to evolve to XDR-TB. PMID- 29031638 TI - dbGAPs: A comprehensive database of genes and genetic markers associated with psoriasis and its subtypes. AB - Psoriasis is a systemic hyperproliferative inflammatory skin disorder, although rarely fatal but significantly reduces quality of life. Understanding the full genetic component of the disease association may provide insight into biological pathways as well as targets and biomarkers for diagnosis, prognosis and therapy. Studies related to psoriasis associated genes and genetic markers are scattered and not easily amendable to data-mining. To alleviate difficulties, we have developed dbGAPs an integrated knowledgebase representing a gateway to psoriasis associated genomic data. The database contains annotation for 202 manually curated genes associated with psoriasis and its subtypes with cross-references. Functional enrichment of these genes, in context of Gene Ontology and pathways, provide insight into their important role in psoriasis etiology and pathogenesis. The dbGAPs interface is enriched with an interactive search engine for data retrieval along with unique customized tools for Single Nucleotide Polymorphism (SNP)/indel detection and SNP/indel annotations. dbGAPs is accessible at http://www.bmicnip.in/dbgaps/. PMID- 29031639 TI - Oscillatory neural representations in the sensory thalamus predict neuropathic pain relief by deep brain stimulation. AB - OBJECTIVE: Understanding the function of sensory thalamic neural activity is essential for developing and improving interventions for neuropathic pain. However, there is a lack of investigation of the relationship between sensory thalamic oscillations and pain relief in patients with neuropathic pain. This study aims to identify the oscillatory neural characteristics correlated with pain relief induced by deep brain stimulation (DBS), and develop a quantitative model to predict pain relief by integrating characteristic measures of the neural oscillations. APPROACH: Measures of sensory thalamic local field potentials (LFPs) in thirteen patients with neuropathic pain were screened in three dimensional feature space according to the rhythm, balancing, and coupling neural behaviours, and correlated with pain relief. An integrated approach based on principal component analysis (PCA) and multiple regression analysis is proposed to integrate the multiple measures and provide a predictive model. MAIN RESULTS: This study reveals distinct thalamic rhythms of theta, alpha, high beta and high gamma oscillations correlating with pain relief. The balancing and coupling measures between these neural oscillations were also significantly correlated with pain relief. SIGNIFICANCE: The study enriches the series research on the function of thalamic neural oscillations in neuropathic pain and relief, and provides a quantitative approach for predicting pain relief by DBS using thalamic neural oscillations. PMID- 29031640 TI - The application of mesenchymal stem cells to treat thermal and radiation burns. AB - Mesenchymal stem cells (MSCs) have been developed for a number of indications due to their regenerative and anti-inflammatory phenotypes and their utility is enhanced by the fact that allogeneic transplant is feasible with this cell type. Animal studies and early human cases indicate that this has the potential to be an exciting new therapy for treating chronic non-healing wounds such as diabetic ulcers, burns and cutaneous radiation burns. This review will focus on the use of MSCs to treat thermal and radiation burns. Large, severe burns are difficult to treat and pose a major public health burden worldwide. They are characterized by an extensive loss of the outer protective barrier, delayed wound healing, increased oxidative stress and a heightened inflammatory state. The breakdown of the protective barrier results in increased susceptibility to fluid loss and bacterial sepsis. In the case of radiation burns, chronic inflammation can result in subsequent waves of tissue injury leading to skin breakdown and necrosis. The aim of this review is to summarize the current knowledge on MSCs in treating thermal and radiation burns along with the specific scope of characterizing the biologic function of MSCs that help enhance wound healing in these chronic injuries. PMID- 29031641 TI - Recovery of human Achilles tendon three-dimensional deformation following conditioning. AB - OBJECTIVES: The tendon conditioning effect is transient, but the time course of recovery from conditioning is not known. This study examined the time-course recovery of three-dimensional (3D) Achilles tendon (AT) deformation immediately following a standardised AT conditioning protocol. DESIGN: Randomised crossover. METHODS: Ten healthy male adults (age: 24+/-5 years; height: 175.8+/-4.1cm; body mass: 78.4+/-6.3kg) attended the laboratory on 6 occasions. ATs were scanned using freehand 3D ultrasound during a 50% maximal voluntary isometric contraction (MVIC) of the plantarflexors immediately prior to and following the conditioning protocol (10*25s plantarflexion contractions at 50% MVIC), and then at either 15, 30, 60, 90 or 120min post-conditioning, randomised by session. RESULTS: Free AT longitudinal strain was significantly increased from 3.13+/-0.19% pre conditioning to 7.49+/-0.20% immediately post-conditioning and was accompanied by a corresponding reduction in free AT transverse strain from -5.35+/-0.48% to 10.16+/-0.49% (p<0.001). There were no significant differences in free AT longitudinal or transverse strains at 60min relative to 0min post-conditioning, or between pre-conditioning strains and strains measured at 2h (p>0.05). CONCLUSIONS: The free AT undergoes a creep response during conditioning which is recoverable within 2h following conditioning. Recovery from conditioning has the potential to be a source of error during in vivo measurement of AT mechanical properties. The time window in which the free AT longitudinal and transverse strains could be achieved without a large confounding effect of creep recovery is 0-60min post-conditioning. PMID- 29031642 TI - The effect of oral contraceptive use on salivary testosterone concentrations and athlete performance during international field hockey matches. AB - OBJECTIVES: To investigate the effect of oral contraceptive (OC) use on salivary testosterone (sal-T) concentrations and performance-related statistics in international field hockey matches. DESIGN: A cohort observational study with repeated measures. METHODS: Twenty-three elite female athletes were monitored across four international field hockey matches over a nine-day period. Salivary T was assessed 45min before each match and several match performance statistics were collated; load (i.e. ratings of perceived exertion*playing time), video derived positive actions (PA) and negative actions (NA), plus coach and player ratings of performance. The sal-T and match performance profiles of OC (n=7) and Non-OC (n=16) players were compared and predictive relationships tested. RESULTS: Pre-match sal-T concentrations were 35% higher in the Non-OC than the OC group (p=0.001), representing a large effect size (ES) difference of 0.96. The OC and Non-OC groups did not differ on any performance statistic (p>=0.348) with ES differences from -0.22 to 0.11. Salivary T was positively related to the number of PA during match play (p=0.017). Additional linkage between sal-T and NA emerged, but with opposing slopes (p=0.008) in the OC (B=-1.783, p=0.030) and Non OC (B=0.692, p=0.127) groups. CONCLUSIONS: OC usage by elite women athletes was accompanied by lower sal-T concentrations, but the performance outputs of the OC and Non-OC groups were similar. This suggests that the T differences had no impact on match performance. On an individual (population-averaged) level, sal-T was associated with PA and NA during these matches, though the response curves predicting NA differed for OC and Non-OC athletes. PMID- 29031643 TI - Physical fitness and psychological health in overweight/obese children: A cross sectional study from the ActiveBrains project. AB - OBJECTIVES: To examine the associations of physical fitness (i.e. cardiorespiratory fitness, muscular strength, and speed/agility) with psychological distress and psychological well-being in overweight/obese pre adolescent children. DESIGN: 110 overweight/obese children (10.0+/-1.1years old, 61 boys) from the ActiveBrains project (http://profith.ugr.es/activebrains) participated in this cross-sectional study. METHODS: Physical fitness was evaluated by the ALPHA battery test. Cardiorespiratory fitness was additionally evaluated by a maximal incremental treadmill. Stress was assessed by the Children's Daily Stress Inventory, anxiety by the State-Trait Anxiety Inventory, depression by the Children Depression Inventory, positive affect and negative affect by the Positive and Negative Affect Scale for Children, happiness by the Subjective Happiness Scale, optimism by the Life Orientation Test, and self esteem by the Rosenberg Self-Esteem questionnaire. Linear regression adjusted for sex and peak height velocity was used to examine associations. RESULTS: Absolute upper-body muscular strength was negatively associated with stress and negative affect (beta=-0.246, p=0.047; beta=-0.329, p=0.010, respectively). Furthermore, absolute lower-body muscular strength was negatively associated with negative affect (beta=-0.301, p=0.029). Cardiorespiratory fitness, expressed by the last completed lap, and relative upper-body muscular strength were positively associated with optimism (beta=0.220, p=0.042; beta=0.240, p=0.017, respectively). Finally, absolute upper-body muscular strength was positively associated with self-esteem (beta=0.362, p=0.003) independently of sex and weight status (p for interactions >0.3), and absolute lower-body muscular strength was also positively associated with self-esteem (beta=0.352, p=0.008). CONCLUSIONS: Muscular strength was associated with psychological distress (i.e. stress and negative affect) and psychological well-being (i.e. optimism and self-esteem) as well as cardiorespiratory fitness was associated with optimism. Therefore, increased levels of physical fitness, specifically muscular strength, could have significant benefits for overweight/obese children psychological health. PMID- 29031644 TI - A preliminary evaluation of glial cell line-derived neurotrophic factor (GDNF) levels in cerebrospinal fluid across various gestational ages and clinical conditions of the neonate. AB - BACKGROUND: This study aims to investigate glial cell derived neurotrophic factor (GDNF) levels in newborns' umbilical cord blood and cerebrospinal fluid across various perinatal growth parameters and clinical conditions. METHODS: Cord blood from 20 newborns and 58 residual CSF samples (stored after completion of clinical testing) were collected. GDNF levels were determined using GDNF ELISA kits from R&D Systems in triplicates with appropriate controls to eliminate background. RESULTS: Cord blood GDNF levels were significantly higher (p=0.004) in preterm newborns (n=6) (115.05+/-57.17,pg/ml) when compared to term newborns (n=14) (19.67+/-10.67,pg/ml). GDNF levels in CSF trended (p=0.07) higher in term newborns (n=10) (19.56+/-9.11,pg/ml) when compared to preterm newborns at term or post term corrected gestational ages (n=5) (14.49+/-3.53,pg/ml). CONCLUSIONS: GDNF levels in preterm newborns were higher in cord blood and lower in CSF as compared to term newborns. It is important to further study circulating and CSF GDNF levels in newborns at different gestational ages and clinical conditions. PMID- 29031646 TI - International publication trends in dry eye disease research: A bibliometric analysis. AB - PURPOSE: To perform a bibliometric analysis in the field of dry eye disease (DED) research to characterize the current international status of DED research and to identify the most effective actors (journals, countries, authors) involved in this field. METHODS: Scientometric methods were used to evaluate global scientific production and development trends in DED research, using the Web of Science Core Collection. RESULTS: The growth of the literature related to DED averaged 12.18% over the last 10 years. A total of 5522 original and review articles, published in 821 different journals, were identified. The USA was the most productive country with 34.53% of the overall articles studied and 46.10% of the overall citations. The Ocular Surface published a very high percentage of articles related to DED relative to the total number of articles published (31.87%). The most productive institutions and the most frequently cited articles were from the USA and Japan. A network visualization map for country collaboration revealed that most European countries developed most of their collaborations with countries belonging to their own continent, which was not the case for the USA or Japan. A total of 41,956 KeyWords Plus were found with an average of 7.6 (SD = 3.15) KeyWords Plus per article. CONCLUSIONS: This study provides a broad view of the current status and trends in DED research and may help clinicians, researchers and policy makers better understand this research field and predict its dynamic directions. PMID- 29031647 TI - Barriers to antenatal psychosocial assessment and depression screening in private hospital settings. AB - PROBLEM: The evidence of benefit for antenatal psychosocial assessment and depression screening has been sufficient to lead the implementation of screening in public hospitals in all states of Australia. Details of the implementation of perinatal screening in private obstetric settings is less well known. AIM: As any successful implementation relies on the identification of local barriers, we aimed to determine what perceived or actual barriers may exist for the implementation of evidence-based perinatal screening interventions in private obstetric care, and specifically within small private hospitals. METHOD: The integrative literature review method offers a structured systematic approach to organise, synthesize and critique research from a range of sources. This method was used to determine what barriers have been identified in implementing psychosocial assessment and depression screening with women receiving obstetric care in private hospital settings. FINDINGS: The integrative review findings suggest that barriers to implementing psychosocial screening in the private sector are similar to those experienced in the public sector but may also be influenced by the corporate focus of private services. Barriers were identified among health professionals, within the personal and psychosocial context of women and their families, and at provider or system level. CONCLUSION: Once identified, barriers can be systematically addressed to enhance the success of implementing psychosocial and depression screening in the private sector. Screening is likely to be influenced by the business models and operating systems of private service providers. Health professionals working within this environment need more support to conduct perinatal assessment within this context. PMID- 29031645 TI - Neuropathic pain and dry eye. AB - Dry eye is a common, multifactorial disease currently diagnosed by a combination of symptoms and signs. Its epidemiology and clinical presentation have many similarities with neuropathic pain outside the eye. This review highlights the similarities between dry eye and neuropathic pain, focusing on clinical features, somatosensory function, and underlying pathophysiology. Implications of these similarities on the diagnosis and treatment of dry eye are discussed. PMID- 29031648 TI - A historical account of the governance of midwifery education in Australia and the evolution of the Continuity of Care Experience. AB - BACKGROUND: Midwifery programs leading to registration as a midwife in Australia have undergone significant change over the last 20 years. During this time accreditation and governance around midwifery education has been reviewed and refined, moving from state to national jurisdiction. A major change has been the mandated inclusion of Continuity of Care Experiences as a clinical practice-based learning component. AIM: The purpose of this discussion is to present the history of the governance and accreditation of Australian midwifery programs. With a particular focus on the evolution of the Continuity of Care Experience as a now mandated clinical practice based experience. METHODS: Historical and contemporary documents, research and grey literature, are drawn together to provide a historical account of midwifery programs in Australia. This will form the background to the inclusion of the Continuity of Care Experience and discuss research requirements to enhance the model to ensure it is educationally sound. DISCUSSION: The structure and processes for the Continuity of Care Experience vary between universities and there is currently no standard format across Australia. As such, how it is interpreted and conducted varies amongst students, childbearing women, academics and midwives. The Continuity of Care Experience has always been strongly advocated for; however there is scant evidence available in terms of its educational theory underpinnings. CONCLUSION: Research concerned with the intended learning objectives and outcomes for the Continuity of Care Experience will support the learning model and ensure it continues into the future as an educationally sound learning experience for midwifery students. PMID- 29031649 TI - [The 2015-2016 influenza epidemic: Late onset, clinical severity and emergence of the B Victoria virus]. PMID- 29031650 TI - Tigecycline-based prolonged salvage therapy in patients presenting with complex bone and joint infection. AB - OBJECTIVES: To assess the clinical experience of tigecycline-based salvage therapy in patients presenting with Bone and Joint Infections (BJI). PATIENTS AND METHODS: Multicenter retrospective cohort study in France and Turkey (2007-2014). RESULTS: Thirty-six patients (age 58.2+/-17.8 years; 21 men) were included. The most frequently isolated bacteria were Enterobacteriaceae and staphylococci. Tigecycline (50mg BID, mainly in combination (69.4%), mean duration of 58 days) was indicated for multidrug resistance (90.6%) and/or previous antibiotic intolerance (36.1%), and/or as second- or third-line therapy (69.4%). Six patients (16.7%) experienced early treatment discontinuation for adverse event (4 severe vomiting, 1 pancreatitis, 1 asymptomatic lipase increase). Clinical success was observed in 23 of 30 assessable patients who completed the tigecycline therapy (mean follow-up: 54.1+/-57.7 weeks). CONCLUSION: Prolonged tigecycline-based therapy could be an alternative in patients presenting with BJI requiring salvage therapy, especially if multidrug-resistant Enterobacteriaceae and/or staphylococci are involved. PMID- 29031651 TI - Vaccine criticism: Presence and arguments on French-speaking websites. AB - OBJECTIVE: To evaluate the presence of vaccine criticism on the French Web and to analyze strategies and arguments used by opponents of vaccination. METHODS: The most frequently used keywords associated with the terms "vaccination" and "vaccine" on Google.fr in September 2013 were identified and searched for individually on Google.fr. The links presented in the first three pages of results were reviewed to identify the most frequent providers of information. The proportion of critical content was determined by website type and a content analysis was performed. RESULTS: The main preoccupations about vaccination were general concerns; <1% of searches were guided by negative keywords. Institutional websites, healthcare websites, news websites and anti-vaccine websites were the most frequent providers of results. The proportion of anti-vaccine websites among the results was 11% for a neutral search and 24% for a search guided by negative keywords. Critical content was observed in other types of website. Six major strategies and categories of arguments used by opponents of vaccination were identified: the manipulation of science, the use of shocking images and an appeal to emotions via testimonies, a general vaccination conspiracy, the individual's freedom of choice not respected, an unnatural act and a negative benefit/risk balance. CONCLUSION: It seems important to monitor online vaccination debates, to develop an institutional presence that meets the needs of Internet users and to help them develop a critical view. PMID- 29031652 TI - [Scedosporium apiospermum skin infection mimicking a pyoderma gangrenosum]. PMID- 29031653 TI - Discussion of: "Operative versus non-operative management in the care of patients with complicated appendicitis". PMID- 29031654 TI - Discussion of: "Disparate effects of catecholamines under stress conditions on endothelial glycocalyx injury: An in vitro model". PMID- 29031655 TI - Discussion of: "Is routine head CT indicated in awake stable older patients after a ground level fall?" PMID- 29031656 TI - Disparities in incidence of early- and late-onset colorectal cancer between Hispanics and Whites: A 10-year SEER database study. PMID- 29031657 TI - Achyrocline alata potentiates repair of skin full thickness excision in mice. AB - Plants of the Asteraceae family have been traditionally used as medicinal plants. The species Achyrocline satureioides and Achyrocline alata present anti inflammatory properties and great chemical similarity. However, no study has been performed to evaluate the influence of these plants on skin wound healing in vivo. Here, we have assessed the effect of these plants extracts on skin wound healing in mice. Mice were randomly arranged into three groups (n = 10), an injury was performed on the dorsal area of the animals, which received the following topical treatment: group 1, control (ointment base); group 2, A. satureioides extract; group 3, A. alata extract. The solution for treatment was prepared as 10% (w/w) concentration. The wound area was measured on days 1, 4, 9, 15 and 17 after treatment and tissues of local lesion were collected on the ninth day for histological analysis. A. alata was more effective since it induced earlier wound closure associated with decreasing initial inflammatory response, faster reepithelialization and collagen remodeling. A. satureioides improved the collagen renovation, but induced slower closure, which may be due to different concentrations of phenolic compounds among the plants here studied. Both plants did not alter the ultrastructural characteristics of cells in the healing process. In conclusion, our findings suggest the potent wound healing capacity of A. alata extracts, as demonstrated by more efficient and faster induction of wound closure. We believe this plant is a potential wound healing treatment for humans and further studies are necessary to assess its clinical practice. PMID- 29031658 TI - Randomized controlled pilot study of the preoperative use of brimonidine 0.33% topical gel for hemostasis in Mohs micrographic surgery. AB - BACKGROUND: Brimonidine topical gel may be useful in cutaneous surgical procedures because of its vasoconstricting properties. OBJECTIVE: Assess the hemostatic effect of topically applied brimonidine in patients being treated with anticoagulants and undergoing Mohs micrographic surgery (MMS). METHODS: Subjects undergoing MMS were randomly assigned to the control (n = 10) or study arm (n = 14). Controls received standard-of-care MMS, whereas the study arm received the same and preoperative application of brimonidine. Evaluations included rate of blood flow, percentage of wound bed surface area needing electrocautery, and changes in skin colorimeter readings. RESULTS: The treatment arm had 68% less blood loss over 30 seconds versus the control arm (P < .05). No patient in the brimonidine arm had more than 50% of the wound bed cauterized versus 80% in the controls. Erythema in the treatment arm was decreased by 3.89 times (P < .01) versus in the control arm. LIMITATIONS: Limitations were small sample size; sites limited to the face; the fact that measurement of bleeding did not account for anesthetic mixed with blood; visual estimation of percentage of wound surface area requiring cauterization; and no measurement of volume of anesthesia, wound depth, or postoperative complications. CONCLUSION: Preoperative application of brimonidine 0.33% gel may help decrease blood loss and the need for electrocautery during MMS for patients taking anticoagulants. PMID- 29031659 TI - Validity of skin cancer malignancy reporting to the Organ Procurement Transplant Network: A cohort study. AB - BACKGROUND: The Organ Procurement Transplant Network (OPTN) registry collects data on posttransplant malignancies in solid organ transplant recipients. Complete and accurate registry data on skin cancer is critical for research on epidemiology and interventions. OBJECTIVE: The study goal was to determine the validity of Organ Procurement Transplant Network skin cancer data. METHODS: This cohort study compared reporting of posttransplant squamous cell carcinoma (SCC) and malignant melanoma (MM) in OPTN to medical-record review-derived data from the Transplant Skin Cancer Network (TSCN) database. In total, 4934 organ transplant recipients from the TSCN database were linked to patient-level OPTN malignancy data. We calculated sensitivity, specificity, correct classification (CC), positive predictive value (PPV), and negative predictive value (NPV) for SCC and MM reporting in the OPTN database. RESULTS: OPTN reporting for SCC (population prevalence 11%) had sensitivity 41%, specificity 99%, PPV 88%, NPV 93%, and CC 93%. OPTN reporting for MM (population prevalence 1%) had sensitivity 22%, specificity 100%, PPV 73%, NPV 99%, and CC 99%. LIMITATIONS: Only a subset of patients in the TSCN cohort had matched United Network for Organ Sharing cancer registry data for comparison. CONCLUSION: OPTN reporting had poor sensitivity but excellent specificity for SCC and MM. Dermatologists and transplant physicians are encouraged to improve the validity of OPTN skin cancer data through improved communication and reporting. PMID- 29031660 TI - Lichen planus affecting the female genitalia: A retrospective review of patients at Mayo Clinic. AB - BACKGROUND: Genital or vulval lichen planus (VLP) may have a disabling effect on a patient's quality of life. Evidence-based management guidelines are lacking for VLP. OBJECTIVE: We sought to review clinical presentation and treatment of patients who received a diagnosis of VLP. METHODS: The 100 consecutive patients who received a diagnosis of VLP at Mayo Clinic between January 1, 1997, and December 31, 2015, were reviewed retrospectively. Descriptive statistics were used for data analysis. Fisher's exact test and the Wilcoxon rank sum test were used for analysis of categorical and continuous variables, respectively. All statistical tests were 2 sided, with the alpha level set at .05 for statistical significance. RESULTS: The time to diagnosis for 49% of patients was more than 1 year. Three patients (3%) had vulval dysplasia, including invasive squamous cell carcinoma. Sixty-eight patients (68%) had multisite lichen planus disease. Eleven patients (11%) had disease remission. Dermatology was the lead specialty for 9 of these cases of remission. LIMITATIONS: This was a retrospective, small-cohort study. CONCLUSION: A low frequency of disease remission was seen in patients with VLP. Patients with lichen planus benefit considerably from dermatology consultation. Further research is warranted to establish high-quality, evidence based guidelines for multidisciplinary management of this challenging disease. PMID- 29031661 TI - Guidelines and algorithms for managing the difficult airway. AB - The difficult airway constitutes a continuous challenge for anesthesiologists. Guidelines and algorithms are key to preserving patient safety, by recommending specific plans and strategies that address predicted or unexpected difficult airway. However, there are currently no "gold standard" algorithms or universally accepted standards. The aim of this article is to present a synthesis of the recommendations of the main guidelines and difficult airway algorithms. PMID- 29031662 TI - Percutaneous treatment of hepatocellular carcinoma: State of the art and innovations. AB - Percutaneous treatment of hepatocellular carcinoma (HCC) encompasses a vast range of techniques, including monopolar radiofrequency ablation (RFA), multibipolar RFA, microwave ablation, cryoablation and irreversible electroporation. RFA is considered one of the main curative treatments for HCC of less than 5 cm developing on cirrhotic liver, together with surgical resection and liver transplantation. However, controversies exist concerning the respective roles of ablation and liver resection for HCC of less than 3 to 5 cm on cirrhotic liver. In line with the therapeutic algorithm of early HCC, percutaneous ablation could also be used as a bridge to liver transplantation or in a sequence of upfront percutaneous treatment, followed by transplantation if the patient relapses. Moreover, several innovations in ablation methods may help to efficiently treat early HCC, initially considered as "non-ablatable", and might, in some cases, extend ablation criteria beyond early HCC, enabling treatment of more patients with a curative approach. PMID- 29031664 TI - Nonlinearity-aware based dimensionality reduction and over-sampling for AD/MCI classification from MRI measures. AB - Alzheimer's disease (AD) has been not only a substantial financial burden to the health care system but also an emotional burden to patients and their families. Making accurate diagnosis of AD based on brain magnetic resonance imaging (MRI) is becoming more and more critical and emphasized at the earliest stages. However, the high dimensionality and imbalanced data issues are two major challenges in the study of computer aided AD diagnosis. The greatest limitations of existing dimensionality reduction and over-sampling methods are that they assume a linear relationship between the MRI features (predictor) and the disease status (response). To better capture the complicated but more flexible relationship, we propose a multi-kernel based dimensionality reduction and over sampling approaches. We combined Marginal Fisher Analysis with l2,1-norm based multi-kernel learning (MKMFA) to achieve the sparsity of region-of-interest (ROI), which leads to simultaneously selecting a subset of the relevant brain regions and learning a dimensionality transformation. Meanwhile, a multi-kernel over-sampling (MKOS) was developed to generate synthetic instances in the optimal kernel space induced by MKMFA, so as to compensate for the class imbalanced distribution. We comprehensively evaluate the proposed models for the diagnostic classification (binary class and multi-class classification) including all subjects from the Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset. The experimental results not only demonstrate the proposed method has superior performance over multiple comparable methods, but also identifies relevant imaging biomarkers that are consistent with prior medical knowledge. PMID- 29031663 TI - Advances in fMRI Real-Time Neurofeedback. AB - Functional magnetic resonance imaging (fMRI) neurofeedback is a type of biofeedback in which real-time online fMRI signals are used to self-regulate brain function. Since its advent in 2003 significant progress has been made in fMRI neurofeedback techniques. Specifically, the use of implicit protocols, external rewards, multivariate analysis, and connectivity analysis has allowed neuroscientists to explore a possible causal involvement of modified brain activity in modified behavior. These techniques have also been integrated into groundbreaking new neurofeedback technologies, specifically decoded neurofeedback (DecNef) and functional connectivity-based neurofeedback (FCNef). By modulating neural activity and behavior, DecNef and FCNef have substantially advanced both basic and clinical research. PMID- 29031666 TI - Reply by Authors. PMID- 29031665 TI - Stress distribution of metatarsals during forefoot strike versus rearfoot strike: A finite element study. AB - Due to the limitations of experimental approaches, comparison of the internal deformation and stresses of the human man foot between forefoot and rearfoot landing is not fully established. The objective of this work is to develop an effective FE modelling approach to comparatively study the stresses and energy in the foot during forefoot strike (FS) and rearfoot strike (RS). The stress level and rate of stress increase in the Metatarsals are established and the injury risk between these two landing styles is evaluated and discussed. A detailed subject specific FE foot model is developed and validated. A hexahedral dominated meshing scheme was applied on the surface of the foot bones and skin. An explicit solver (Abaqus/Explicit) was used to stimulate the transient landing process. The deformation and internal energy of the foot and stresses in the metatarsals are comparatively investigated. The results for forefoot strike tests showed an overall higher average stress level in the metatarsals during the entire landing cycle than that for rearfoot strike. The increase rate of the metatarsal stress from the 0.5 body weight (BW) to 2 BW load point is 30.76% for forefoot strike and 21.39% for rearfoot strike. The maximum rate of stress increase among the five metatarsals is observed on the 1st metatarsal in both landing modes. The results indicate that high stress level during forefoot landing phase may increase potential of metatarsal injuries. PMID- 29031667 TI - Editorial Comment. PMID- 29031668 TI - Editorial Comment. PMID- 29031669 TI - Reply by Authors. PMID- 29031670 TI - Editorial Comment. PMID- 29031671 TI - Editorial Comment. PMID- 29031672 TI - Editorial Comment. PMID- 29031673 TI - Editorial Comment. PMID- 29031674 TI - Editorial Comment. PMID- 29031676 TI - Persistent hyperplastic primary vitreous (PHPV). PMID- 29031677 TI - Spheno-orbital meningioma during pregnancy: Case report of a 37-year-old woman. PMID- 29031678 TI - Ileum Endometriosis: A Cause of Bowel Obstruction. PMID- 29031679 TI - "We Can Work It Out:" The Hundred Years' War between Experts of Surgical and Medical Treatment for Symptomatic Deep Endometriosis. PMID- 29031680 TI - Soluble expression and purification of a full-length asparaginyl tRNA synthetase from Fasciola gigantica. AB - We report the molecular cloning, expression, and single-step homogeneous purification of a full-length asparaginyl tRNA synthetase (NRS) from Fasciola gigantica (FgNRS). Fasciola gigantica is a parasitic liver fluke of the class Trematoda. It causes fascioliasis that infects the liver of various mammals, including humans. Aminoacyl tRNA synthetases (AARS) catalyze the first step of protein synthesis. They attach an amino acid to its cognate tRNA, forming an amino acid-tRNA complex. The gene that codes for FgNRS was generated by amplification by polymerase chain reaction. It was then inserted in the expression vector pQE30 under the transcriptional control of the bacteriophage T5 promoter and lac operator. M15 Escherichia coli strain transformed with the FgNRS expression vector pQE30-NRS accumulates large amounts of a soluble protein of about 61 kDa. The protein was purified to homogeneity using immobilized metal affinity chromatography. The recombinant protein was further confirmed by immunoblotting with anti-His antibody. Following size exclusion chromatography, the FgNRS was stable and observed to be a dimeric protein. In this study, the expression and purification procedures have provided a simple and efficient method to obtain full-length FgNRS in large quantities. This will provide an opportunity to study the structure, dynamics and function of NRS. PMID- 29031681 TI - Altered rPrP substrate structures and their influence on real-time quaking induced conversion reactions. AB - BACKGROUND: Bacterially-produced recombinant prion protein (rPrP) has traditionally been used for in vitro fibrillation assays and reagent development for prion disease research. In recent years, it has also been used as a substrate for real-time quaking-induced conversion (RT-QuIC), a very sensitive method of detecting the presence of the misfolded, disease-associated isoform of the prion protein (PrPd). Multi-centre trials have demonstrated that RT-QuIC is a suitably reliable and robust technique for clinical practice; however, in the absence of a commercial supplier of rPrP as a substrate for RT-QuIC, laboratories have been required to independently generate this key component of the assay. No harmonized method for producing the protein has been agreed upon, in part due to the variety of substrates that have been applied in RT-QuIC. METHODS: This study examines the effects of two different rPrP refolding protocols on the production, QuIC performance, and structure characteristics of two constructs of rPrP commonly used in QuIC: full length hamster and a sheep-hamster chimeric rPrP. RESULTS: Under the described conditions, the best performing substrate was the chimeric sheep-hamster rPrP produced by shorter guanidine-HCl exposure and faster gradient elution. CONCLUSIONS: The observation that different rPrP production protocols influence QuIC performance indicates that caution should be exercised when comparing inter-laboratory QuIC results. PMID- 29031682 TI - [Rates of total and free PSA prescriptions in France (2012-2014)]. AB - BACKGROUND: In 2010, the French Haute Autorite de sante (National Health Authority) confirmed the limited value of prostate cancer (PCa) screening by total prostate-specific antigen (PSA) assay. OBJECTIVE: This study was designed to determine the modalities of ordering total PSA or free PSA assays (in the absence of PCa) according to various parameters and the corresponding sums reimbursed. METHODS: Men aged 40 years and older covered by the national health insurance general scheme (73% of the French population) between 2012 and 2014 were selected. Data were derived from the Systeme national d'information inter regimes de l'assurance maladie (Sniiram) (National health insurance information system) database. RESULTS: In 2014, 27% of the 11.6 million men 40 years and older underwent at least one total PSA assay and 5.6% underwent at least one free PSA assay, with marked variations according to the presence or absence of treated lower urinary tract symptoms (LUTS) (53% and 15% vs 24% and 5%) and from one administrative department to another. The peak total PSA assay rate was observed between the ages of 65 and 74 years: 64% of men with LUTS, 46% without LUTS. Between 2012 and 2014, men in whom at least one PSA assay had been performed underwent a mean of 1.8 total PSA assays and 1.7 free PSA assays, with means of 2.3 and 2, respectively, in the presence of LUTS. General practice specialists ordered 91% of the PSA tests reimbursed in 2014 (92% for total PSA and 87% for free PSA) and urologists ordered 4% of reimbursed tests. The total sum reimbursed was ?28.5 million, comprising ?8.7 million for free PSA. An average of 10 laboratory tests was performed at the same time as the PSA assay in the absence of treated LUTS. CONCLUSION: Total PSA and free PSA assays are performed in a large number of men, although the value of these tests as first-line test before biopsy remains controversial. These PSA assays are associated with many other laboratory tests looking for possible abnormalities, especially in younger men, and their relevance may therefore not be specifically discussed with the patient. PMID- 29031683 TI - [Focal therapies: An alternative option for low-risk prostate cancer management?] AB - Recommended options for low-risk prostate cancer treatment are active surveillance, radical treatments or watchful waiting. Focal therapies are currently assessed for low risk prostate cancer treatment. Focal therapies can be performed in research protocols. Oncologic results of these focal treatments are encouraging and show excellent tolerance with few complications. Radical treatments are still possible after focal therapies failure. Focal therapies are a possible solution to over-treatment issue of low risk prostate cancers. PMID- 29031684 TI - [Management of prostate cancer: The new challenges]. PMID- 29031685 TI - Comparison of the composition of bile acids in bile of patients with adenocarcinoma of the pancreas and benign disease. AB - Bile acids have been implicated in the development of gastrointestinal malignancies. Both the specific nature of individual bile acids and their concentration appear key factors in the carcinogenic potency of bile. Using liquid chromatography mass spectrometry (LC-MS) we performed quantitative profiling of bile extracted directly from the common bile duct in 30 patients (15 patients with pancreatic cancer and 15 patients with benign disease). Separation and detection of bile acids was performed using a 1.7MUm particle size reversed phase C18 LC column at a flow rate of 200MUL/min with negative electrospray ionization MS. A significant difference (p=0.018) was seen in the concentration of unconjugated cholic acid in the malignant group (0.643mmol/L) compared to the benign group (0.022mmol/L), with an overall significant difference (p=0.04) seen in the level of total unconjugated bile acids in the malignant group (1.816mmol/L) compared to the benign group (0.069mmol/L). This finding may offer the possibility of both understanding the biology of cancer development in the pancreas, as well as offering a potential diagnostic avenue to explore. However, a larger study is necessary to confirm the alterations in bile acid profiles reported here and explore factors such as diet and microbial populations on the bile acid profiles of these patient groups. PMID- 29031686 TI - Oestrogen receptor beta (ERbeta) regulates osteogenic differentiation of human dental pulp cells. AB - Estradiol (E2) has many important actions in the tissues of the oral cavity. Disruption of E2 metabolism or alterations in systemic E2 concentrations have been associated with compromised periodontal health. In many instances such changes occur secondarily to the well characterised effects of E2 on bone physiology -especially maintenance of bone mineral density (BMD). Despite these important epidemiological findings, little is known about the mechanism of action of E2 in oral tissues or the expression and function of oestrogen receptor (ER) isoforms in these tissues. We have isolated human dental pulp cells (hDPCs), which are able to differentiate towards an osteogenic lineage under appropriate culture conditions. We show that hDPCs express ERalpha, ERbeta1, ERbeta2 and the cell membrane associated G protein-coupled ER (GPR30). Following osteogenic differentiation of hDPCs, ERbeta1 and ERbeta2 were up regulated approximately 50 fold while ERalpha and GPR30 were down regulated, but to a much lesser degree (approximately 2-fold). ERbeta was characterised as a 59kDa protein following Western blot analysis with validated antibodies and ERbeta was detected in both nuclear and cytoplasmic cell compartments following immunofluorescence (IF) and immunohistochemical (IHC) analysis of cultured cells. Furthermore isoform specific antibodies detected both ERbeta1 and ERbeta2 in DPC cultures and in situ analysis of ERbeta expression in decalcified tooth/pulp sections identified the odontoblast layer of pulp cells juxtaposed to the tooth enamel as strongly reactive for both ERbeta isoforms. Finally the use of isoform specific agonists identified ERbeta as the main receptor responsible for the pro-osteogenic effect of oestrogenic hormones in this tissue. Our data suggest that oestrogens stimulated osteogenic differentiation in hDPCs and that this action is mediated principally through the ERbeta isoform. These findings may have important consequences for the investigation and treatment of oral and periodontal pathologies which are associated with imbalances in oestrogen concentrations and action. PMID- 29031687 TI - Structure-function relationships for the selective inhibition of human 3beta hydroxysteroid dehydrogenase type 1 by a novel androgen analog. AB - 3beta-Hydroxysteroid dehydrogenase type 1 (3beta-HSD1) is selectively expressed in human placenta, mammary glands and breast tumors in women. Human 3beta-HSD2 is selectively expressed in adrenal glands and ovaries. Based on AutoDock 3 and 4 results, we have exploited key differences in the amino acid sequences of 3beta HSD1 (Ser194, Arg195) and 3beta-HSD2 (Gly194, Pro195) by designing a selective inhibitor of 3beta-HSD1. 2,16-Dicyano-4,5-epoxy-androstane-3,17-dione (16-cyano 17-keto-trilostane or DiCN-AND) was synthesized in a 4-step procedure from androstenedione. In purified 3beta-HSD inhibition studies, DiCN-AND competitively inhibited 3beta- HSD1 with Ki=4.7MUM and noncompetitively inhibited 3beta-HSD2 with a 6.5-fold higher Ki=30.7MUM. We previously reported similar isoenzyme specific inhibition profiles for trilostane. Based on our docking results, we created, expressed and purified the chimeric S194G-1 mutant of 3beta-HSD1. Trilostane inhibited S194G-1 (Ki=0.67MUM) with a noncompetitive mode compared to its 6.7-fold higher affinity, competitive inhibition of 3beta-HSD1 (Ki=0.10MUM). DiCN-AND inhibited S194G-1 with a 6.3-fold higher Ki (29.5MUM) than measured for 3beta-HSD1 (Ki=4.7MUM) but with the same competitive mode for both enzyme species. Since DiCN-AND noncompetitively inhibits 3beta-HSD2, which has the Gly194 and Pro195 of 3beta-HSD2 in place of the Ser194 and Arg195 in 3beta-HSD1, this suggests that Arg195 alone in 3beta-HSD1 or S194G-1 is required to bind DiCN AND in the substrate binding site (competitive inhibition). However, both Ser194 and Arg195 are required to bind trilostane in the 3beta-HSD1 substrate site based on its noncompetitive inhibition of S194G-1 and 3beta-HSD2. In support of this hypothesis, DiCN-AND inhibited our chimeric R195P-1 mutant noncompetitively with a Ki=41.3MUM (similar to the 3beta-HSD2 inhibition profile). Since DiCN-AND competitively inhibited S194G-1 that still contains R195 but noncompetitively inhibited R195P-1 that still contains S194, our data provides strong evidence that the Arg195 being mutated to Pro195 (as present in 3beta-HSD2) shifts the inhibition mode from competitive to noncompetitive in 3beta-HSD1. This supports the key role of Arg195 in 3beta-HSD1 for the high affinity, competitive binding of the trilostane analogs. Our new structure/function information for the design of targeted 3beta-HSD1 inhibitors may lead to important new treatments for the prevention of spontaneous premature birth. PMID- 29031690 TI - Considerations for using ETEC and Shigella disease burden estimates to guide vaccine development strategy. AB - Enterotoxigenic E. coli (ETEC) and Shigella are enteropathogens causing significant global morbidity and mortality, particularly in low-income countries. No licensed vaccine exists for either pathogen, but candidates are in development, with the most advanced candidates potentially approaching pivotal efficacy testing within the next few years. A positive policy recommendation for introduction of any vaccine, following licensure, depends on evidence of vaccine cost-effectiveness and impact on morbidity and mortality. The mortality estimates for these two pathogens have fluctuated over recent years, which has led to uncertainty in the assessment of their relative public health importance for use in low and middle-income countries. This paper summarizes the various ETEC and Shigella disease burden estimates, based on a review of current literature and informal consultations with leading stakeholders in enteric disease modelling. We discuss the factors that underpin the variability, including differences in the modelling methodology; diagnostic tools used to ascertain diarrheal etiology; epidemiological setting; the data that are available to incorporate; and absolute changes in the total number of diarrheal deaths over time. We consider the further work that will strengthen the evidence needed to support future decision making with respect to recommendations on the relative utility of these vaccines. PMID- 29031689 TI - Oral administration of kaempferol inhibits bone loss in rat model of ovariectomy induced osteopenia. AB - BACKGROUND: Postmenopausal osteoporosis and osteoporotic fractures constitute an increasing problem in developing countries. Kaempferol, isolated from seeds of Cuscuta chinensis, is an active flavonoid inhibiting in vitro osteoclast activity. The aim of the presented research was an assessment of kaempferol effect on estrogen-deficiency-induced bone structure disturbances in rats. METHODS: The study was performed on 24 Wistar female rats divided into 3 groups: SHAM - rats undergoing a "sham" surgery, OVX-C - control group of animals that underwent ovariectomy, OVX-K - rats undergoing ovariectomy and receiving kaempferol for 8 weeks (from day 56 to day 112). RESULTS: In the OVX-K group, contrary to the OVX-C one, there was no significant decrease in femoral bone mineral density (BMD). A significant increase in Young's modulus was observed in the OVX-K group compared to the OVX-C (15.33+/-2.51GPa vs. 11.14+/-1.93GPa, p<0.05). A decreased bone turnover was detected in the OVX-K group. Tissue volume ratio (BV/TV) and trabecular bone perimeter were increased in the OVX-K group compared to the OVX-C one (0.241+/-0.037 vs. 0.170+/-0.022, p<0.05 and 15.52+/ 2.78mm vs. 9.67+/-3.07mm, p<0.05, respectively). CONCLUSION: Kaempferol has a beneficial influence on estrogen-deficiency-induced disturbances of bone structure in rats. PMID- 29031688 TI - Vitamin D deficiency is associated with poor breast cancer prognostic features in postmenopausal women. AB - This study aimed to evaluate the association between pretreatment vitamin D (VD) deficiency with breast cancer prognostic features in Brazilian postmenopausal women. An analytical cross sectional study was conducted with 192 women, aged 45 75 years, attended at University Hospital. Women with recent diagnosis of breast cancer, in amenorrhea >12months and age >=45 years, without medication use or clinical conditions that interfere with VD values were included. Clinical and anthropometric data were collected. Serum level of 25 hydroxyvitamin D [25(OH)D] was measured in all patients until 20days after breast cancer diagnosis, and was classified as normal (>=30ng/mL), insufficiency (20-29ng/mL) and deficiency (<20ng/mL). Data on breast cancer (histopathological type, grade, tumor stage, lymph node status), hormone status (estrogen receptor, ER, progesterone receptor, PR), human epidermal growth factor receptor type 2 (HER2) and epithelial proliferative activity (Ki-67) were collected. For statistical analysis, the t student test, the Gamma Distribution (asymmetric variables), the chi-square test and the logistic regression (OR-odds ratio) were used. The median 25(OH)D level was 25.8ng/mL (range 12.0-59.2ng/mL). Sufficient vitamin D levels were detected in 65 patients (33.9%), whereas insufficient levels in 92 patients (47.9%), and deficient levels in 35 patients (18.2%). Participants with insufficient and deficient 25(OH)D levels had a higher proportion of tumors with a high grade and locally advanced and metastatic disease, more positive lymph node, a lower proportion of ER, PR positives tumors and higher Ki-67(p<0.05). Patients with normal vitamin D had a higher frequency of luminal A (47.7%) and luminal B (32.2%) tumors when compared to patients with vitamin D insufficiency or deficiency. Furthermore, all cases of triple negative were detected in women with low VD levels. Multivariate analysis, after adjusting for age, time since menopause and BMI, showed that insufficient and deficient level of vitamin D were significantly associated with negative estrogen receptor (OR 3.77 CI 95% 1.76 8.09 and OR 3.99 CI 95% 1.83-8.68), high Ki-67 (OR 2.50, CI 95% 1.35-4.63, and OR 2.62, CI 95% 1.40-4.98), and positive axillary lymph node status (OR 1.59, CI 95% 1.03-2.33, and OR 1.58, CI 95% 1.02-2.92) respectively. In Brazilian postmenopausal women with breast cancer, there was an association between vitamin D insufficiency or deficiency and tumors with worse prognostic features. Low vitamin D levels were shown to be a risk factor for ER negative tumors, with positive axilla and a higher rate of cell proliferation. PMID- 29031691 TI - Understanding vaccine hesitancy in polio eradication in northern Nigeria. AB - BACKGROUND: Vaccine hesitancy constitutes a major threat to the Global Polio Eradication Initiative (GPEI), and to further expansion of routine immunisation. Understanding hesitancy, leading in some cases to refusal, is vital to the success of GPEI. Re-emergence of circulating wild poliovirus in northern Nigeria in mid-2016, after 24months polio-free, gives urgency to this. But it is equally important to protect and sustain the global gains available through routine immunisation in a time of rising scepticism and potential rejection of specific vaccines or immunisation more generally. METHODS AND FINDINGS: This study is based on a purposive sampling survey of 1653 households in high- and low performing rural, semiurban and urban areas of three high-risk states of northern Nigeria in 2013-14 (Sokoto, Kano and Bauchi). The survey sought to understand factors at household and community level associated with propensity to refuse polio vaccine. Wealth, female education and knowledge of vaccines were associated with lower propensity to refuse oral polio vaccine (OPV) among rural households. But higher risk of refusal among wealthier, more literate urban household rendered these findings ambiguous. Ethnic and religious identity did not appear to be associated with risk of OPV refusal. Risk of vaccine refusal was highly clustered among households within a small sub-group of sampled settlements. Contrary to expectations, households in these settlements reported higher levels of expectation of government as service provider, but at the same time lesser confidence in the efficacy of their relations with government. CONCLUSIONS: Results suggest that strategies to address the micro-political dimension of vaccination - expanding community-level engagement, strengthening the role of local government in public health, and enhancing public participation of women - should be effective in reducing non-compliance, asan important set of strategies complementary to conventional didactic/educational approaches and working through religious and traditional 'influencers'. PMID- 29031692 TI - Development and application of a bioluminescent imaging mouse model for Chikungunya virus based on pseudovirus system. AB - Chikungunya virus (CHIKV) is an arthropod-borne virus that is transmitted to humans primarily via the bite of an infected mosquito. Infection of humans by CHIKV can cause chikungunya fever which is an acute febrile illness associated with severe, often debilitating polyarthralgias. Since a re-emergence of CHIKV in 2004, the virus has spread into novel locations in nearly 40 countries including non-endemic regions and has led to millions of cases of disease throughout countries. Handling of CHIKV is restricted to the high-containment Biosafety Level 3 (BSL-3) facilities, which greatly impede the research progress of this virus. In this study, an envelope-pseudotyped virus expressing the firefly luciferase reporter protein (pHIV-CHIKV-Fluc) was generated. An in vitro sensitive neutralizing assay and an in vivo bioluminescent-imaging-based mouse infection model had been developed based on the CHIKV pseudovirus. Utilizing the platform, protection effect of DNA vaccine was evaluated. Therefore, this study provides a safe, sensitive and visualizing model for evaluating vaccines and antiviral therapies against CHIKV in low containment BSL-2 laboratories. PMID- 29031693 TI - A brief review on the immunological scenario and recent developmental status of vaccines against enteric fever. AB - Enteric fever has been one of the leading causes of severe illness and deaths worldwide. S. Typhi and S. Paratyphi A, B and C are important enteric fever causing organisms globally. This infection causes about 21 million cases among which 222,000 typhoid related deaths occurred in 2015. These estimates do not reflect the ultimate and real status of the disease due to the lack of unified diagnostic and proper reporting system from typhoid endemic and other regions. Current control strategies have become increasingly ineffective due to the emergence of multi-drug resistance among the strains. This situation worsens the disease-burden in developing as well as in developed countries. Moreover the emergence of S. Paratyphi A as a major enteric fever-causing organism in several Asian countries, demands a prophylactic measure at this hour. Other than two licensed vaccines of S. Typhi, there are no exsisting vaccines for S. Paratyphi A. Moreover, travelers returning from endemic regions are becoming more susceptible to have these infections. In this situation, a need for bivalent approach is required where a single immunogen (consisting from each organism) will be effective against the disease. In this review, we have focused on the general information about typhoidal fever, its spread and epidemiology in brief and the present status of typhoidal vaccines and its future. This review highlights existing gaps in the typhoidal salmonellae research with a special emphasis on the status of present typhoidal salmonellae vaccine research. PMID- 29031694 TI - A formative research-guided educational intervention to improve the knowledge and attitudes of seniors towards influenza and pneumococcal vaccinations. AB - BACKGROUND: Adult influenza and pneumococcal vaccination rates in Singapore are low, and factors influencing knowledge and attitudes of seniors towards influenza, pneumonia and their respective vaccines are not well-known. Our study aims to understand the barriers and facilitators towards getting influenza and pneumococcal vaccinations among seniors in Singapore, and subsequently inform the conduct of a relevant community-based educational intervention, as well as evaluate the intervention outcomes. METHODS: We performed a mixed methods study with two components: Firstly, formative research was conducted among community dwelling seniors, using focus group discussions (FGDs), to understand their knowledge and attitudes towards influenza, pneumonia and their respective vaccines. Next, a quantitative study was conducted to evaluate knowledge of seniors and the effectiveness of an educational intervention. RESULTS: Four FGDs were organised with 32 participants, who were predominantly female, of lower educational background, and residing in government rental flats. Participants had varying levels of knowledge and many misconceptions about influenza, pneumonia and their respective vaccinations, with concerns about side effects and vaccine effectiveness. The formative research results were used to inform a community based educational intervention for seniors. Our subsequent evaluation included 604 elderly participants, mainly from lower educational and socio-economic strata, who initially demonstrated poor knowledge scores (median score 5 out of 9, IQR 4-5). Following our intervention, median knowledge score improved to 7 (IQR 6-8) (p < .0001). Significant improvements in knowledge scores were observed across genders, age strata, education levels, and housing types. DISCUSSION: Our formative research identified knowledge gaps among community-dwelling seniors which affected their attitudes towards vaccination uptake. Key findings were taken into consideration when implementing the educational intervention. Our community-based intervention was effective in improving knowledge and attitudes, and could be used as a cue to action for short-term behaviour changes. PMID- 29031695 TI - 'Hesitant compliers': Qualitative analysis of concerned fully-vaccinating parents. AB - OBJECTIVE: Some parents are hesitant about vaccines and yet still vaccinate their children. Vaccine behaviours are not fixed and parents who are concerned but nonetheless adherent to standard schedules could switch to an unconventional schedule, delaying or cherry-picking vaccines. There is a need to better understand vaccine hesitancy in specific contexts, acknowledging cultural and geographical variation, to ensure interventions targeting hesitancy are well directed and received. METHODS: To identify the behaviours, knowledge and attitudes of 'hesitant compliers' in Perth, Western Australia, nine one-on-one in depth interviews were conducted with vaccinating parents of children (<5 years) who were identified as being hesitant. Interview transcripts were analysed qualitatively and themes developed inductively, following a constructivist paradigm. RESULTS: Parents saw vaccination as important for themselves and their community, despite their limited knowledge of vaccine preventable diseases. Parents reported concerns about potential side effects, and worried about the safety of the measles-mumps-rubella (MMR) and seasonal influenza vaccines. Concerned about the role of anti-vaccination information in the community, some sought to isolate themselves from parents who did not vaccinate, although others were concerned that this could entrench non-vaccinators' behaviours. Parents' views were all underlaid by two pivotal 'vaccine-related events' that had occurred in the community: the severe injury of a baby from seasonal influenza vaccination in 2010, and the death of a baby from whooping cough in 2015. CONCLUSIONS: Parents interpreted pivotal vaccine-related events in the community as requiring them to take personal responsibility for vaccine decisions. Their reports of continued vaccine fears (evident in international studies in recent decades) demonstrate that vaccine scares have long lasting effects. With vaccine rates high and stable, current strategies appear to be have little impact on addressing parental vaccine concerns. Further research is required to determine the prevalence of hesitancy amongst vaccinating parents and identify critical points for intervention. PMID- 29031696 TI - Safety assessment of immunization in pregnancy. PMID- 29031698 TI - Aggregation of Abeta(17-36) in the Presence of Naturally Occurring Phenolic Inhibitors Using Coarse-Grained Simulations. AB - Although some naturally occurring polyphenols have been found to inhibit amyloid beta (Abeta) fibril formation and reduce neuron cell toxicity in vitro, their exact inhibitory mechanism is unknown. In this work, discontinuous molecular dynamics combined with the PRIME20 force field and a newly built inhibitor model are performed to examine the effect of vanillin, resveratrol, curcumin, and epigallocatechin-3-gallate (EGCG) on the aggregation of Abeta(17-36) peptides. Four sets of peptide/inhibitor simulations are performed in which inhibitors (1) bind to Abeta(17-36) monomer (2) interfere with Abeta(17-36) oligomerization (3) disrupt a pre-formed Abeta(17-36) protofilament, and (4) prevent the growth of Abeta(17-36) protofilament. The single-ring compound, vanillin, slightly slows down but cannot inhibit the formation of a U-shaped Abeta(17-36) protofilament. The multiple-ring compounds, EGCG, resveratrol, and curcumin, redirect Abeta(17 36) from a fibrillar aggregate to an unstructured oligomer. The three aromatic groups of the EGCG molecule are in a stereo (nonplanar) configuration, helping it contact the N-terminal, middle, and C-terminal regions of the peptide. Resveratrol and curcumin bind only to the hydrophobic residues near peptide termini. The rank order of inhibitory effectiveness of Abeta(17-36) aggregation is as follows: EGCG > resveratrol > curcumin > vanillin, consistent with experimental findings on inhibiting full-length Abeta fibrillation. Furthermore, we learn that the inhibition effect of EGCG is specific to the peptide sequence, while those of resveratrol and curcumin are non-specific in that they stem from strong interference with hydrophobic side-chain association, regardless of the residues' location and peptide sequence. Our studies provide molecular-level insights into how polyphenols inhibit Abeta fibril formation, knowledge that could be useful for designing amyloid inhibitors. PMID- 29031697 TI - Ubiquitin-Modifying Enzymes and Regulation of the Inflammasome. AB - Ubiquitin and ubiquitin-modifying enzymes play critical roles in a wide variety of intracellular signaling pathways. Inflammatory signaling cascades downstream of TNF, TLR agonists, antigen receptor cross-linking, and cytokine receptors, all rely on ubiquitination events to direct subsequent immune responses. In the past several years, inflammasome activation and subsequent signal transduction have emerged as an excellent example of how ubiquitin signals control inflammatory responses. Inflammasomes are multiprotein signaling complexes that ultimately lead to caspase activation and release of the interleukin-1 (IL-1) family members, IL-1beta and IL-18. Inflammasome activation is critical for the host's defense against pathogens, but dysregulation of inflammasomes may contribute to the pathogenesis of multiple diseases. Ultimately, understanding how various ubiquitin interacting proteins control inflammatory signaling cascades could provide new pathways for therapeutic intervention. Here we review specific ubiquitin-modifying enzymes and ubiquitination events that orchestrate inflammatory responses, with an emphasis on the NLRP3 inflammasome. PMID- 29031699 TI - A Genetic Tool to Quantify trans-Translation Activity in Vivo. AB - In bacteria, trans-translation is the main quality control mechanism for rescuing ribosomes arrested during translation. This key process is universally conserved and plays a critical role in the viability and virulence of many pathogens. We developed a reliable in vivo double-fluorescence reporter system for the simultaneous quantification of both trans-translation and the associated proteolysis activities in bacteria. The assay was validated using mutant bacteria lacking tmRNA, SmpB, and the ClpP protease. Both antisense tmRNA-binding RNA and a peptide mimicking the SmpB C-terminal tail proved to be potent inhibitors of trans-translation in vivo. The double-fluorescent reporter was also tested with KKL-35, an oxadiazole derivative that is supposed to be a promising trans translation inhibitor, and it surprisingly turns out that trans-translation is not the only target of KKL-35 in vivo. PMID- 29031700 TI - Cost Benefit of Comprehensive Primary and Preventive School-Based Health Care. AB - INTRODUCTION: The Rales Health Center is a comprehensive school-based health center at an urban elementary/middle school. Rales Health Center provides a full range of pediatric services using an enriched staffing model consisting of pediatrician, nurse practitioner, registered nurses, and medical office assistant. This staffing model provides greater care but costs more than traditional school-based health centers staffed by part-time nurses. The objective was to analyze the cost benefit of Rales Health Center enhanced staffing model compared with a traditional school-based health center (standard care), focusing on asthma care, which is among the most prevalent chronic conditions of childhood. METHODS: In 2016, cost-benefit analysis using a decision tree determined the net social benefit of Rales Health Center compared with standard care from the U.S. societal perspective based on the 2015-2016 academic year. It was assumed that Rales Health Center could handle greater patient throughput related to asthma, decreased prescription costs, reduced parental resources in terms of missed work time, and improved student attendance. Univariate and multivariate probabilistic sensitivity analyses were conducted. RESULTS: The expected cost to operate Rales Health Center was $409,120, compared with standard care cost of $172,643. Total monetized incremental benefits of Rales Health Center were estimated to be $993,414. The expected net social benefit for Rales Health Center was $756,937, which demonstrated substantial societal benefit at a return of $4.20 for every dollar invested. This net social benefit estimate was robust to sensitivity analyses. CONCLUSIONS: Despite the greater cost associated with the Rales Health Center's enhanced staffing model, the results of this analysis highlight the cost benefit of providing comprehensive, high-quality pediatric care in schools, particularly schools with a large proportion of underserved students. PMID- 29031701 TI - [Old privilege and enthusiast progress]. PMID- 29031702 TI - Complications following open reduction and internal fixation versus external fixation in treating unstable distal radius fractures: Grading the evidence through a meta-analysis. AB - BACKGROUND: The common fixation techniques for unstable distal radius fractures include open reduction and internal fixation (ORIF) with plates and closed reduction and external fixation (EF). There is controversy over the choice of surgical approach in treating unstable distal radius fractures. HYPOTHESIS: This meta-analysis was performed to compare complication rates in patients treated with ORIF or EF for unstable distal radius fractures and to develop GRADE (grading of recommendations, assessment, development, and evaluation)-based recommendations for using the procedures to treat unstable distal radius fractures. MATERIALS AND METHODS: A systematic search of all the studies published was conducted using the Pubmed, ScienceDirect, Embase, BIOSIS, Springer, Cochrane Library databases. The randomized controlled trials (RCTs) that compared ORIF with EF in treating adult patients with unstable distal radius fractures and provided data regarding the complication were identified. The demographic characteristics and adverse events were manually extracted from all of the included studies. RevMan 5.1 was used for data analysis. PRISMA guidelines were followed. RESULTS: Sixteen studies that included a total of 1280 patients met the inclusion criteria. Compared with ORIF, EF results in higher incidence of total complications, infection and malunion. The overall GRADE system evidence quality was very low, which reduces our confidence in the recommendations of this system. DISCUSSION: This meta-analysis indicates that ORIF and EF are both effective procedures for treating unstable distal radius fractures. ORIF may be superior to EF in the treatment of unstable distal radius fractures. Because of the low quality evidence currently available, high-quality RCTs are required. LEVEL OF EVIDENCE: Level II: low-powered prospective randomized trial meta analysis. PMID- 29031703 TI - Comparative approximations of criticality in a neural and quantum regime. AB - Under a variety of conditions, stochastic and non-linear systems with many degrees of freedom tend to evolve towards complexity and criticality. Over the last decades, a steady proliferation of models re: far-from-equilibrium thermodynamics of metastable, many-valued systems arose, serving as attributes of a 'critical' attractor landscape. Building off recent data citing trademark aspects of criticality in the brain-including: power-laws, scale-free (1/f) behavior (scale invariance, or scale independence), critical slowing, and avalanches-it has been conjectured that operating at criticality entails functional advantages such as: optimized neural computation and information processing; boosted memory; large dynamical ranges; long-range communication; and an increased ability to react to highly diverse stimuli. In short, critical dynamics provide a necessary condition for neurobiologically significant elements of brain dynamics. Theoretical predictions have been verified in specific models such as Boolean networks, liquid state machines, and neural networks. These findings inspired the neural criticality hypothesis, proposing that the brain operates in a critical state because the associated optimal computational capabilities provide an evolutionarily advantage. This paper develops in three parts: after developing the critical landscape, we will then shift gears to rediscover another inroad to criticality via stochastic quantum field theory and dissipative dynamics. The existence of these two approaches deserves some consideration, given both neural and quantum criticality hypotheses propose specific mechanisms that leverage the same phenomena. This suggests that understanding the quantum approach could help to shed light on brain-based modeling. In the third part, we will turn to Whitehead's actual entities and modes of perception in order to demonstrate a concomitant logic underwriting both models. In the discussion, I briefly motivate a reading of criticality and its properties as responsive to the characterization of tenets from Eastern wisdom traditions. PMID- 29031704 TI - Evaluation of cooperative antileukemic effects of nilotinib and vildagliptin in Ph+ chronic myeloid leukemia. AB - Chronic myeloid leukemia (CML) is a stem cell (SC) neoplasm characterized by the BCR/ABL1 oncogene. Although the disease can be kept under control using BCR/ABL1 tyrosine kinase inhibitors (TKIs) in most cases, some patients relapse or have resistant disease, so there is a need to identify new therapeutic targets in this malignancy. Recent data suggest that leukemic SCs (LSCs) in CML display the stem cell (SC)-mobilizing cell surface enzyme dipeptidyl-peptidase IV (DPPIV = CD26) in an aberrant manner. In the present study, we analyzed the effects of the DPPIV blocker vildagliptin as single agent or in combination with the BCR/ABL1 TKI imatinib or nilotinib on growth and survival of CML LSCs in vitro and on LSC engraftment in an in vivo xenotransplantation nonobese diabetic SCID-IL-2Rgamma-/ (NSG) mouse model. We found that nilotinib induces apoptosis in CML LSCs and inhibits their engraftment in NSG mice. In contrast, no substantial effects were seen with imatinib or vildagliptin. Nevertheless, vildagliptin was found to reduce the "mobilization" of CML LSCs from a stroma cell layer consisting of mouse fibroblasts in an in vitro co-culture model, suggesting reduced disease expansion. However, although vildagliptin and nilotinib produced cooperative effects in individual experiments, overall, no significant effects of coadministered vildagliptin over nilotinib or imatinib treatment alone were seen on the engraftment of CML cells in NSG mice. Gliptins may be interesting drugs in the context of CML and nilotinib therapy, but our preclinical studies did not reveal a major cooperative effect of the drug-combination vildagliptin + nilotinib on engraftment of CML cells in NSG mice. PMID- 29031705 TI - Laparoscopic Repair of Large Hiatal Hernia Without the Need for Esophageal Lengthening With Low Morbidity and Rare Symptomatic Recurrence. AB - The aim of this study was to assess symptomatic recurrence in patients who underwent a laparoscopic repair of large hiatal hernia without an esophageal lengthening procedure. Patients who underwent a laparoscopic repair of a large hiatal hernia from September 2009 to September 2015 by a single surgeon were identified in the retrospective review. The patients were followed up prospectively by the operating surgeon using a structured questionnaire, administered by telephone, to assess the symptoms. Symptomatic recurrence was defined as the requirement for a reoperative procedure for symptomatic recurrent hiatal hernia. There were 215 laparoscopic repairs. Reoperations (n = 35) and type I hernias of <4 cm (n = 49) were excluded. The study population included 131 patients: 36 had type I hernia, 4 had type II hernia, 37 had type III hernia, and 54 had type IV hernia. There were 102 women and 29 men, aged 63 (56-74) years. For repair, 102 Toupet, 28 Nissen, and 1 Dor fundoplications were performed. The duration of the operation was 138 (119-172) minutes. Adequate esophageal length was obtained by mediastinal esophageal mobilization in all patients, without Collis gastroplasty. A mesh was used in 106 patients. There was 1 conversion and 2 delayed esophageal leaks. The length of stay was 2 (1-3) days. Perioperative complications included atrial fibrillation in 5 patients, gastric distension or ileus in 5 patients, reintubation in 3 patients, heparin-induced thrombocytopenia in 1 patient, and temporary dialysis in 1 patient. There was no 30-day or in hospital mortality. The questionnaire was completed by 99 out of 131 patients (76%) at 24 (9-38) months; of the 99 patients, 85 (86%) were free of preoperative symptoms; 91 (92%) were satisfied with the operation; and 73 (74%) were off proton pump inhibitors. Reoperation for symptomatic recurrent hiatal hernia occurred in 8 of the 99 patients (8%), 2 in the perioperative period and 6 at 25 (8-31) months. Laparoscopic repair of large hiatal hernia can be performed with low morbidity and results in excellent patient satisfaction. Tension-free, intra abdominal esophageal length can be achieved laparoscopically without Collis gastroplasty. Reoperation for symptomatic recurrence is rare. PMID- 29031706 TI - Early Outcomes with Rapid-deployment vs Stented Biological Valves: A Propensity match Analysis. AB - Rapid-deployment valves could potentially reduce cross-clamping time and cardiopulmonary bypass time in complex combined procedures and facilitate minimally invasive surgery. This propensity-matched study compared clinical and echographic outcomes between patients undergoing rapid-deployment aortic valve replacement (RDAVR) compared with stented biological aortic valve replacement (SAVR), with or without concomitant procedures. Between 2012 and 2015, 61 consecutive patients (age 70 +/- 7 years, European System for Cardiac Operative Risk Evaluation [EuroSCORE] II 2.1%) underwent aortic valve replacement with Intuity prosthesis (Edwards, Irvine, CA) at the Montreal Heart Institute. This group was compared to 1496 consecutive patients (age 74 +/- 8 years, logistic EuroSCORE II 2.8%) who underwent SAVR in the same period. After propensity score matching (1:3), 59 patients in the RDAVR group were matched to 177 patients in the SAVR group. Preoperative characteristics and risk scores were similar in matched groups. Cardiopulmonary bypass, cross-clamp, and total surgical times were lower in the RDAVR group compared with the SAVR group (P < 0.001). Within 30 days, 1 patient died in the SAVR group and none died in the RDAVR group (P = 0.31). The need for pacemaker implantation was higher in the RDAVR group, although the difference was not significant (12% vs 5%, P = 0.13). RDAVR patients less frequently required transfusions (P = 0.025) and had a shorter intubation time (P = 0.002). RDAVR facilitates minimally invasive aortic valve replacement and is associated with shorter bypass and cross-clamp times. Moreover, RDAVR compares favorably with SAVR in terms of mortality and outcome variables. PMID- 29031707 TI - Modeling host-seeking behavior of African malaria vector mosquitoes in the presence of long-lasting insecticidal nets. AB - The efficiency of spatial repellents and long-lasting insecticide-treated nets (LLINs) is a key research topic in malaria control. Insecticidal nets reduce the mosquito-human contact rate and simultaneously decrease mosquito populations. However, LLINs demonstrate dissimilar efficiency against different species of malaria mosquitoes. Various factors have been proposed as an explanation, including differences in insecticide-induced mortality, flight characteristics, or persistence of attack. Here we present a discrete agent-based approach that enables the efficiency of LLINs, baited traps and Insecticide Residual Sprays (IRS) to be examined. The model is calibrated with hut-level experimental data to compare the efficiency of protection against two mosquito species: Anopheles gambiae and Anopheles arabiensis. We show that while such data does not allow an unambiguous identification of the details of how LLINs alter the vector behavior, the model calibrations quantify the overall impact of LLINs for the two different mosquito species. The simulations are generalized to community-scale scenarios that systematically demonstrate the lower efficiency of the LLINs in control of An. arabiensis compared to An. gambiae. PMID- 29031708 TI - The brain strikes back: Hypothalamic targets for peripheral CB1 receptor inverse agonism. PMID- 29031709 TI - Anti-hypertensive treatment in pregnancy impacts offspring growth and metabolism: Q&A. PMID- 29031710 TI - Nav1.8 neurons are involved in limiting acute phase responses to dietary fat. AB - OBJECTIVE AND METHODS: Metabolic viscera and their vasculature are richly innervated by peripheral sensory neurons. Here, we examined the metabolic and inflammatory profiles of mice with selective ablation of all Nav1.8-expressing primary afferent neurons. RESULTS: While mice lacking sensory neurons displayed no differences in body weight, food intake, energy expenditure, or body composition compared to controls on chow diet, ablated mice developed an exaggerated inflammatory response to high-fat feeding characterized by bouts of weight loss, splenomegaly, elevated circulating interleukin-6 and hepatic serum amyloid A expression. This phenotype appeared to be directly mediated by the ingestion of saturated lipids. CONCLUSIONS: These data demonstrate that the Nav1.8-expressing afferent neurons are not essential for energy balance but are required for limiting the acute phase response caused by an obesogenic diet. PMID- 29031711 TI - Lorcaserin improves glycemic control via a melanocortin neurocircuit. AB - OBJECTIVE: The increasing prevalence of type 2 diabetes (T2D) and associated morbidity and mortality emphasizes the need for a more complete understanding of the mechanisms mediating glucose homeostasis to accelerate the identification of new medications. Recent reports indicate that the obesity medication lorcaserin, a 5-hydroxytryptamine (5-HT, serotonin) 2C receptor (5-HT2CR) agonist, improves glycemic control in association with weight loss in obese patients with T2D. Here we evaluate whether lorcaserin has an effect on glycemia without body weight loss and how this effect is achieved. METHODS: Murine models of common and genetic T2D were utilized to probe the direct effect of lorcaserin on glycemic control. RESULTS: Lorcaserin dose-dependently improves glycemic control in mouse models of T2D in the absence of reductions in food intake or body weight. Examining the mechanism of this effect, we reveal a necessary and sufficient neurochemical mediator of lorcaserin's glucoregulatory effects, brain pro-opiomelanocortin (POMC) peptides. To clarify further lorcaserin's therapeutic brain circuit, we examined the receptor target of POMC peptides. We demonstrate that lorcaserin requires functional melanocortin4 receptors on cholinergic preganglionic neurons (MC4RChAT) to exert its effects on glucose homeostasis. In contrast, MC4RChAT signaling did not impact lorcaserin's effects on feeding, indicating a divergence in the neurocircuitry underpinning lorcaserin's therapeutic glycemic and anorectic effects. Hyperinsulinemic-euglycemic clamp studies reveal that lorcaserin reduces hepatic glucose production, increases glucose disposal and improves insulin sensitivity. CONCLUSIONS: These data suggest that lorcaserin's action within the brain represents a mechanistically novel treatment for T2D: findings of significance to a prevalent global disease. PMID- 29031712 TI - Mitochondrial uncoupling in the melanocortin system differentially regulates NPY and POMC neurons to promote weight-loss. AB - OBJECTIVE: The mitochondrial uncoupling agent 2,4-dinitrophenol (DNP), historically used as a treatment for obesity, is known to cross the blood-brain barrier, but its effects on central neural circuits controlling body weight are largely unknown. As hypothalamic melanocortin neuropeptide Y/agouti-related protein (NPY/AgRP) and pro-opiomelanocortin (POMC) neurons represent key central regulators of food intake and energy expenditure we investigated the effects of DNP on these neurons, food intake and energy expenditure. METHOD: C57BL/6 and melanocortin-4 receptor (MC4R) knock-out mice were administered DNP intracerebroventricularly (ICV) and the metabolic changes were characterized. The specific role of NPY and POMC neurons and the ionic mechanisms mediating the effects of uncoupling were examined with in vitro electrophysiology performed on NPY hrGFP or POMC eGFP mice. RESULTS: Here we show DNP-induced differential effects on melanocortin neurons including inhibiting orexigenic NPY and activating anorexigenic POMC neurons through independent ionic mechanisms coupled to mitochondrial function, consistent with an anorexigenic central effect. Central administration of DNP induced weight-loss, increased BAT thermogenesis and browning of white adipose tissue, and decreased food intake, effects that were absent in MC4R knock-out mice and blocked by the MC4R antagonist, AgRP. CONCLUSION: These data show a novel central anti-obesity mechanism of action of DNP and highlight the potential for selective melanocortin mitochondrial uncoupling to target metabolic disorders. PMID- 29031713 TI - Peripheral cannabinoid-1 receptor blockade restores hypothalamic leptin signaling. AB - OBJECTIVE: In visceral obesity, an overactive endocannabinoid/CB1 receptor (CB1R) system promotes increased caloric intake and decreases energy expenditure, which are mitigated by global or peripheral CB1R blockade. In mice with diet-induced obesity (DIO), inhibition of food intake by the peripherally restricted CB1R antagonist JD5037 could be attributed to endogenous leptin due to the rapid reversal of hyperleptinemia that maintains leptin resistance, but the signaling pathway engaged by leptin has remained to be determined. METHODS: We analyzed the hypothalamic circuitry targeted by leptin following chronic treatment of DIO mice with JD5037. RESULTS: Leptin treatment or an increase in endogenous leptin following fasting/refeeding induced STAT3 phosphorylation in neurons in the arcuate nucleus (ARC) in lean and JD5037-treated DIO mice, but not in vehicle treated DIO animals. Co-localization of pSTAT3 in leptin-treated mice was significantly less common with NPY+ than with POMC+ ARC neurons. The hypophagic effect of JD5037 was absent in melanocortin-4 receptor (MC4R) deficient obese mice or DIO mice treated with a MC4R antagonist, but was maintained in NPY-/- mice kept on a high-fat diet. CONCLUSIONS: Peripheral CB1R blockade in DIO restores sensitivity to endogenous leptin, which elicits hypophagia via the re activation of melanocortin signaling in the ARC. PMID- 29031714 TI - Dwarfism and insulin resistance in male offspring caused by alpha1-adrenergic antagonism during pregnancy. AB - OBJECTIVE: Maternal and environmental factors control the epigenetic fetal programming of the embryo, thereby defining the susceptibility for metabolic or endocrine disorders in the offspring. Pharmacological interventions required as a consequence of gestational problems, e.g. hypertension, can potentially interfere with correct fetal programming. As epigenetic alterations are usually only revealed later in life and not detected in studies focusing on early perinatal outcomes, little is known about the long-term epigenetic effects of gestational drug treatments. We sought to test the consequences of maternal alpha1-adrenergic antagonism during pregnancy, which can occur e.g. during hypertension treatment, for the endocrine and metabolic phenotype of the offspring. METHODS: We treated C57BL/6NCrl female mice with the alpha1-adrenergic antagonist prazosin during pregnancy and analyzed the male and female offspring for endocrine and metabolic abnormalities. RESULTS: Our data revealed that maternal alpha1-adrenergic blockade caused dwarfism, elevated body temperature, and insulin resistance in male offspring, accompanied by reduced IGF-1 serum concentrations as the result of reduced hepatic growth hormone receptor (Ghr) expression. We subsequently identified increased CpG DNA methylation at the transcriptional start site of the alternative Ghr promotor caused by the maternal treatment, which showed a strong inverse correlation to hepatic Ghr expression. CONCLUSIONS: Our results demonstrate that maternal alpha1-adrenergic blockade can constitute an epigenetic cause for dwarfism and insulin resistance. The findings are of immediate clinical relevance as combined alpha/beta-adrenergic blockers are first-line treatment of maternal hypertension. PMID- 29031715 TI - ANGPTL8 promotes the ability of ANGPTL3 to bind and inhibit lipoprotein lipase. AB - OBJECTIVE: Several members of the angiopoietin-like (ANGPTL) family of proteins, including ANGPTL3 and ANGPTL8, regulate lipoprotein lipase (LPL) activity. Deficiency in either ANGPTL3 or ANGPTL8 reduces plasma triglyceride levels and increases LPL activity, whereas overexpression of either protein does the opposite. Recent studies suggest that ANGPTL8 may functionally interact with ANGPTL3 to alter clearance of plasma triglycerides; however, the nature of this interaction has remained elusive. We tested the hypothesis that ANGPTL8 forms a complex with ANGPTL3 and that this complex is necessary for the inhibition of vascular LPL by ANGPTL3. METHODS: We analyzed the interactions of ANGPTL3 and ANGPTL8 with each other and with LPL using co-immunoprecipitation, western blotting, lipase activity assays, and the NanoBiT split-luciferase system. We also used adenovirus injection to overexpress ANGPTL3 in mice that lacked ANGPTL8. RESULTS: We found that ANGPTL3 or ANGPTL8 alone could only inhibit LPL at concentrations that far exceeded physiological levels, especially when LPL was bound to its endothelial cell receptor/transporter GPIHBP1 (glycosylphosphatidylinositol-anchored high-density lipoprotein binding protein 1). Physical interaction was observed between ANGPTL3 and ANGPTL8 when the proteins were co-expressed, and co-expression with ANGPTL3 greatly enhanced the secretion of ANGPTL8. Importantly, ANGPTL3-ANGPTL8 complexes had a dramatically increased ability to inhibit LPL compared to either protein alone. Adenovirus experiments showed that 2-fold overexpression of ANGPTL3 significantly increased plasma triglycerides only in the presence of ANGPTL8. Protein interaction assays showed that ANGPTL8 greatly increased the ability of ANGPTL3 to bind LPL. CONCLUSIONS: Together, these data indicate that ANGPTL8 binds to ANGPTL3 and that this complex is necessary for ANGPTL3 to efficiently bind and inhibit LPL. PMID- 29031716 TI - Adipocyte glucocorticoid receptor is important in lipolysis and insulin resistance due to exogenous steroids, but not insulin resistance caused by high fat feeding. AB - OBJECTIVE: The critical role of adipose tissue in energy and nutrient homeostasis is influenced by many external factors, including overnutrition, inflammation, and exogenous hormones. Prior studies have suggested that glucocorticoids (GCs) in particular are major drivers of physiological and pathophysiological changes in adipocytes. In order to determine whether these effects directly require the glucocorticoid receptor (GR) within adipocytes, we generated adipocyte-specific GR knockout (AGRKO) mice. METHODS: AGRKO and control mice were fed chow or high fat diet (HFD) for 14 weeks. Alternatively, AGRKO and control mice were injected with dexamethasone for two months. Glucose tolerance, insulin sensitivity, adiposity, lipolysis, thermogenesis, and insulin signaling were assessed. RESULTS: We find that obesity, insulin resistance, and dysglycemia associated with high fat feeding do not require an intact GR in the adipocyte. However, exogenous dexamethasone (Dex) promotes metabolic dysfunction in mice, and this effect is reduced in mice lacking GR in adipocytes. The ability of Dex to promote "whitening" of brown fat is also reduced in these animals. We also show that GR is required for beta-adrenergic and cold stimulation-mediated lipolysis via expression of the key lipolytic enzyme ATGL. CONCLUSIONS: Our data suggest that the GR plays a role in normal adipose physiology via effects on lipolysis and mediates at least some of the adverse effects of exogenous steroids on metabolic function. The data also indicate that intra-adipocyte GR plays less of a role than previously believed in the local and systemic pathology associated with overnutrition. PMID- 29031717 TI - Lipid nanoparticle delivery of glucagon receptor siRNA improves glucose homeostasis in mouse models of diabetes. AB - OBJECTIVE: Hyperglucagonemia is present in many forms of diabetes and contributes to hyperglycemia, and glucagon suppression can ameliorate diabetes in mice. Leptin, a glucagon suppressor, can also reverse diabetes in rodents. Lipid nanoparticle (LNP) delivery of small interfering RNA (siRNA) effectively targets the liver and is in clinical trials for the treatment of various diseases. We compared the effectiveness of glucagon receptor (Gcgr)-siRNA delivered via LNPs to leptin in two mouse models of diabetes. METHODS: Gcgr siRNA encapsulated into LNPs or leptin was administered to mice with diabetes due to injection of the beta-cell toxin streptozotocin (STZ) alone or combined with high fat diet (HFD/STZ). RESULTS: In STZ-diabetic mice, a single injection of Gcgr siRNA lowered blood glucose levels for 3 weeks, improved glucose tolerance, and normalized plasma ketones levels, while leptin therapy normalized blood glucose levels, oral glucose tolerance, and plasma ketones, and suppressed lipid metabolism. In contrast, in HFD/STZ-diabetic mice, Gcgr siRNA lowered blood glucose levels for 2 months, improved oral glucose tolerance, and reduced HbA1c, while leptin had no beneficial effects. CONCLUSIONS: While leptin may be more effective than Gcgr siRNA at normalizing both glucose and lipid metabolism in STZ diabetes, Gcgr siRNA is more effective at reducing blood glucose levels in HFD/STZ diabetes. PMID- 29031718 TI - Galphas regulates Glucagon-Like Peptide 1 Receptor-mediated cyclic AMP generation at Rab5 endosomal compartment. AB - OBJECTIVE: Upon activation, G protein coupled receptors (GPCRs) associate with heterotrimeric G proteins at the plasma membrane to initiate second messenger signaling. Subsequently, the activated receptor experiences desensitization, internalization, and recycling back to the plasma membrane, or it undergoes lysosomal degradation. Recent reports highlight specific cases of persistent cyclic AMP generation by internalized GPCRs, although the functional significance and mechanistic details remain to be defined. Cyclic AMP generation from internalized Glucagon-Like Peptide-1 Receptor (GLP-1R) has previously been reported from our laboratory. This study aimed at deciphering the molecular mechanism by which internalized GLP-R supports sustained cyclic AMP generation upon receptor activation in pancreatic beta cells. METHODS: We studied the time course of cyclic AMP generation following GLP-1R activation with particular emphasis on defining the location where cyclic AMP is generated. Detection involved a novel GLP-1 conjugate coupled with immunofluorescence using specific endosomal markers. Finally, we employed co-immunoprecipitation as well as immunofluorescence to assess the protein-protein interactions that regulate GLP 1R mediated cyclic AMP generation at endosomes. RESULTS: Our data reveal that prolonged association of G protein alpha subunit Galphas with activated GLP-1R contributed to sustained cyclic AMP generation at Rab 5 endosomal compartment. CONCLUSIONS: The findings provide the mechanism of endosomal cyclic AMP generation following GLP-1R activation. We identified the specific compartment that serves as an organizing center to generate endosomal cyclic AMP by internalized activated receptor complex. PMID- 29031719 TI - Macrophage alternative activation confers protection against lipotoxicity-induced cell death. AB - OBJECTIVE: Alternative activation (M2) of adipose tissue resident macrophage (ATM) inhibits obesity-induced metabolic inflammation. The underlying mechanisms remain unclear. Recent studies have shown that dysregulated lipid homeostasis caused by increased lipolysis in white adipose tissue (WAT) in the obese state is a trigger of inflammatory responses. We investigated the role of M2 macrophages in lipotoxicity-induced inflammation. METHODS: We used microarray experiments to profile macrophage gene expression regulated by two M2 inducers, interleukin-4 (Il-4), and peroxisome proliferator-activated receptor delta/gamma (Ppardelta/Ppargamma) agonists. Functional validation studies were performed in bone marrow-derived macrophages and mice deprived of the signal transducer and activator of transcription 6 gene (Stat6; downstream effector of Il-4) or Ppardelta/Ppargamma genes (downstream effectors of Stat6). Palmitic acid (PA) and beta-adrenergic agonist were employed to induce macrophage lipid loading in vitro and in vivo, respectively. RESULTS: Profiling of genes regulated by Il-4 or Ppardelta/Ppargamma agonists reveals that alternative activation promotes the cell survival program, while inhibiting that of inflammation-related cell death. Deletion of Stat6 or Ppardelta/Ppargamma increases the susceptibility of macrophages to PA-induced cell death. NLR family pyrin domain containing 3 (Nlrp3) inflammasome activation by PA in the presence of lipopolysaccharide is also increased in Stat6-/- macrophages and to a lesser extent, in Ppardelta/gamma /- macrophages. In concert, beta-adrenergic agonist-induced lipolysis results in higher levels of cell death and inflammatory markers in ATMs derived from myeloid specific Ppardelta/gamma-/- or Stat6-/- mice. CONCLUSIONS: Our data suggest that ATM cell death is closely linked to metabolic inflammation. Within WAT where concentrations of free fatty acids fluctuate, M2 polarization regulated by the Stat6-Ppar axis enhances ATM's tolerance to lipid-mediated stress, thereby maintaining the homeostatic state. PMID- 29031720 TI - Brown adipocytes can display a mammary basal myoepithelial cell phenotype in vivo. AB - OBJECTIVE: Previous work has suggested that white adipocytes may also show a mammary luminal secretory cell phenotype during lactation. The capacity of brown and beige/brite adipocytes to display a mammary cell phenotype and the levels at which they demonstrate such phenotypes in vivo is currently unknown. METHODS: To investigate the putative adipocyte origin of mammary gland cells, we performed genetic lineage-labeling experiments in BAT and the mammary glands. RESULTS: These studies indicated that the classic brown adipocytes (Ucp1+) and subcutaneous beige/brite adipocytes (Ucp1-/+) were found in the mammary gland during lactation, when they exhibited a mammary myoepithelial phenotype. Up to 2.5% of the anterior dorsal interscapular mammary myoepithelial cell population had a brown adipocyte origin with an adipose and myoepithelial gene signature during lactation. Eliminating these cells, along with all the brown adipocytes, significantly slowed offspring growth, potentially demonstrating their functional importance. Additionally, we showed mammary epithelial lineage Mmtv+ and Krt14+ cells expressed brown adipocyte markers after weaning, demonstrating that mammary gland cells can display an adipose phenotype. CONCLUSIONS: The identification of a brown adipocyte origin of mammary myoepithelial cells provides a novel perspective on the interrelationships between adipocytes and mammary cells with implications for our understanding of obesity and breast cancer. PMID- 29031721 TI - Cdkal1, a type 2 diabetes susceptibility gene, regulates mitochondrial function in adipose tissue. AB - OBJECTIVES: Understanding how loci identified by genome wide association studies (GWAS) contribute to pathogenesis requires new mechanistic insights. Variants within CDKAL1 are strongly linked to an increased risk of developing type 2 diabetes and obesity. Investigations in mouse models have focused on the function of Cdkal1 as a tRNALys modifier and downstream effects of Cdkal1 loss on pro insulin translational fidelity in pancreatic beta-cells. However, Cdkal1 is broadly expressed in other metabolically relevant tissues, including adipose tissue. In addition, the Cdkal1 homolog Cdk5rap1 regulates mitochondrial protein translation and mitochondrial function in skeletal muscle. We tested whether adipocyte-specific Cdkal1 deletion alters systemic glucose homeostasis or adipose mitochondrial function independently of its effects on pro-insulin translation and insulin secretion. METHODS: We measured mRNA levels of type 2 diabetes GWAS genes, including Cdkal1, in adipose tissue from lean and obese mice. We then established a mouse model with adipocyte-specific Cdkal1 deletion. We examined the effects of adipose Cdkal1 deletion using indirect calorimetry on mice during a cold temperature challenge, as well as by measuring cellular and mitochondrial respiration in vitro. We also examined brown adipose tissue (BAT) mitochondrial morphology by electron microscopy. Utilizing co-immunoprecipitation followed by mass spectrometry, we performed interaction mapping to identify new CDKAL1 binding partners. Furthermore, we tested whether Cdkal1 loss in adipose tissue affects total protein levels or accurate Lys incorporation by tRNALys using quantitative mass spectrometry. RESULTS: We found that Cdkal1 mRNA levels are reduced in adipose tissue of obese mice. Using adipose-specific Cdkal1 KO mice (A KO), we demonstrated that mitochondrial function is impaired in primary differentiated brown adipocytes and in isolated mitochondria from A-KO brown adipose tissue. A-KO mice displayed decreased energy expenditure during 4 degrees C cold challenge. Furthermore, mitochondrial morphology was highly abnormal in A-KO BAT. Surprisingly, we found that lysine codon representation was unchanged in Cdkal1 A-KO adipose tissue. We identified novel protein interactors of CDKAL1, including SLC25A4/ANT1, an inner mitochondrial membrane ADP/ATP translocator. ANT proteins can account for the UCP1-independent basal proton leak in BAT mitochondria. Cdkal1 A-KO mice had increased ANT1 protein levels in their white adipose tissue. CONCLUSIONS: Cdkal1 is necessary for normal mitochondrial morphology and function in adipose tissue. These results suggest that the type 2 diabetes susceptibility gene CDKAL1 has novel functions in regulating mitochondrial activity. PMID- 29031723 TI - Inhibition of cholinergic potentiation of insulin secretion from pancreatic islets by chronic elevation of glucose and fatty acids: Protection by casein kinase 2 inhibitor. AB - OBJECTIVES: Chronic hyperlipidemia and hyperglycemia are characteristic features of type 2 diabetes (T2DM) that are thought to cause or contribute to beta-cell dysfunction by "glucolipotoxicity." Previously we have shown that acute treatment of pancreatic islets with fatty acids (FA) decreases acetylcholine-potentiated insulin secretion. This acetylcholine response is mediated by M3 muscarinic receptors, which play a key role in regulating beta-cell function. Here we examine whether chronic FA exposure also inhibits acetylcholine-potentiated insulin secretion using mouse and human islets. METHODS: Islets were cultured for 3 or 4 days at different glucose concentration with 0.5 mM palmitic acid (PA) or a 2:1 mixture of PA and oleic acid (OA) at 1% albumin (PA/BSA molar ratio 3.3). Afterwards, the response to glucose and acetylcholine were studied in perifusion experiments. RESULTS: FA-induced impairment of insulin secretion and Ca2+ signaling depended strongly on the glucose concentrations of the culture medium. PA and OA in combination reduced acetylcholine potentiation of insulin secretion more than PA alone, both in mouse and human islets, with no evidence of a protective role of OA. In contrast, lipotoxicity was not observed with islets cultured for 3 days in medium containing less than 1 mM glucose and a mixture of glutamine and leucine (7 mM each). High glucose and FAs reduced endoplasmic reticulum (ER) Ca2+ storage capacity; however, preserving ER Ca2+ by blocking the IP3 receptor with xestospongin C did not protect islets from glucolipotoxic effects on insulin secretion. In contrast, an inhibitor of casein kinase 2 (CK2) protected the glucose dependent acetylcholine potentiation of insulin secretion in mouse and human islets against glucolipotoxicity. CONCLUSIONS: These results show that chronic FA treatment decreases acetylcholine potentiation of insulin secretion and that this effect is strictly glucose dependent and might involve CK2 phosphorylation of beta-cell M3 muscarinic receptors. PMID- 29031724 TI - Elevated hepatic DPP4 activity promotes insulin resistance and non-alcoholic fatty liver disease. AB - OBJECTIVE: Increased hepatic expression of dipeptidyl peptidase 4 (DPP4) is associated with non-alcoholic fatty liver disease (NAFLD). Whether this is causative for the development of NAFLD is not yet clarified. Here we investigate the effect of hepatic DPP4 overexpression on the development of liver steatosis in a mouse model of diet-induced obesity. METHODS: Plasma DPP4 activity of subjects with or without NAFLD was analyzed. Wild-type (WT) and liver-specific Dpp4 transgenic mice (Dpp4-Liv-Tg) were fed a high-fat diet and characterized for body weight, body composition, hepatic fat content and insulin sensitivity. In vitro experiments on HepG2 cells and primary mouse hepatocytes were conducted to validate cell autonomous effects of DPP4 on lipid storage and insulin sensitivity. RESULTS: Subjects suffering from insulin resistance and NAFLD show an increased plasma DPP4 activity when compared to healthy controls. Analysis of Dpp4-Liv-Tg mice revealed elevated systemic DPP4 activity and diminished active GLP-1 levels. They furthermore show increased body weight, fat mass, adipose tissue inflammation, hepatic steatosis, liver damage and hypercholesterolemia. These effects were accompanied by increased expression of PPARgamma and CD36 as well as severe insulin resistance in the liver. In agreement, treatment of HepG2 cells and primary hepatocytes with physiological concentrations of DPP4 resulted in impaired insulin sensitivity independent of lipid content. CONCLUSIONS: Our results give evidence that elevated expression of DPP4 in the liver promotes NAFLD and insulin resistance. This is linked to reduced levels of active GLP-1, but also to auto- and paracrine effects of DPP4 on hepatic insulin signaling. PMID- 29031722 TI - Activated macrophages control human adipocyte mitochondrial bioenergetics via secreted factors. AB - OBJECTIVE: Obesity-associated WAT inflammation is characterized by the accumulation and local activation of macrophages (MPhis), and recent data from mouse studies suggest that macrophages are modifiers of adipocyte energy metabolism and mitochondrial function. As mitochondrial dysfunction has been associated with obesity and the metabolic syndrome in humans, herein we aimed to delineate how human macrophages may affect energy metabolism of white adipocytes. METHODS: Human adipose tissue gene expression analysis for markers of macrophage activation and tissue inflammation (CD11c, CD40, CD163, CD206, CD80, MCP1, TNFalpha) in relationship to mitochondrial complex I (NDUFB8) and complex III (UQCRC2) was performed on subcutaneous WAT of 24 women (BMI 20-61 kg/m2). Guided by these results, the impact of secreted factors of LPS/IFNgamma- and IL10/TGFbeta-activated human macrophages (THP1, primary blood-derived) on mitochondrial function in human subcutaneous white adipocytes (SGBS, primary) was determined by extracellular flux analysis (Seahorse technology) and gene/protein expression. RESULTS: Stepwise regression analysis of human WAT gene expression data revealed that a linear combination of CD40 and CD163 was the strongest predictor for mitochondrial complex I (NDUFB8) and complex III (UQCRC2) levels, independent of BMI. IL10/TGFbeta-activated MPhis displayed high CD163 and low CD40 expression and secreted factors that decreased UQCRC2 gene/protein expression and ATP-linked respiration in human white adipocytes. In contrast, LPS/IFNgamma-activated MPhis showed high CD40 and low CD163 expression and secreted factors that enhanced adipocyte mitochondrial activity resulting in a total difference of 37% in ATP-linked respiration of white adipocytes (p = 0.0024) when comparing the effect of LPS/IFNgamma- vs IL10/TGFbeta-activated MPhis. CONCLUSION: Our data demonstrate that macrophages modulate human adipocyte energy metabolism via an activation-dependent paracrine mechanism. PMID- 29031725 TI - Intestinal SIRT3 overexpression in mice improves whole body glucose homeostasis independent of body weight. AB - OBJECTIVE: Intestinal metabolism might play a greater role in regulating whole body metabolism than previously believed. We aimed to enhance enterocyte metabolism in mice and investigate if it plays a role in diet-induced obesity (DIO) and its comorbidities. METHODS: Using the cre-loxP system, we overexpressed the mitochondrial NAD+ dependent protein deacetylase SIRT3 in enterocytes of mice (iSIRT3 mice). We chronically fed iSIRT3 mice and floxed-SIRT3 control (S3fl) mice a low-fat, control diet (CD) or a high-fat diet (HFD) and then phenotyped the mice. RESULTS: There were no genotype differences in any of the parameters tested when the mice were fed CD. Also, iSIRT3 mice were equally susceptible to the development of DIO as S3fl mice when fed HFD. They were, however, better able than S3fl mice to regulate their blood glucose levels in response to exogenous insulin and glucose, indicating that they were protected from developing insulin resistance. This improved glucose homeostasis was accompanied by an increase in enterocyte metabolic activity and an upregulation of ketogenic gene expression in the small intestine. CONCLUSION: Enhancing enterocyte oxidative metabolism can improve whole body glucose homeostasis. PMID- 29031726 TI - Reduced renal sympathetic nerve activity contributes to elevated glycosuria and improved glucose tolerance in hypothalamus-specific Pomc knockout mice. AB - OBJECTIVE: Hypothalamic arcuate nucleus-specific pro-opiomelanocortin deficient (ArcPomc-/-) mice exhibit improved glucose tolerance despite massive obesity and insulin resistance. We demonstrated previously that their improved glucose tolerance is due to elevated glycosuria. However, the underlying mechanisms that link glucose reabsorption in the kidney with ArcPomc remain unclear. Given the function of the hypothalamic melanocortin system in controlling sympathetic outflow, we hypothesized that reduced renal sympathetic nerve activity (RSNA) in ArcPomc-/- mice could explain their elevated glycosuria and consequent enhanced glucose tolerance. METHODS: We measured RSNA by multifiber recording directly from the nerves innervating the kidneys in ArcPomc-/- mice. To further validate the function of RSNA in glucose reabsorption, we denervated the kidneys of WT and diabetic db/db mice before measuring their glucose tolerance and urine glucose levels. Moreover, we performed western blot and immunohistochemistry to determine kidney GLUT2 and SGLT2 levels in either ArcPomc-/- mice or the renal-denervated mice. RESULTS: Consistent with our hypothesis, we found that basal RSNA was decreased in ArcPomc-/- mice relative to their wild type (WT) littermates. Remarkably, both WT and db/db mice exhibited elevated glycosuria and improved glucose tolerance after renal denervation. The elevated glycosuria in obese ArcPomc-/-, WT and db/db mice was due to reduced renal GLUT2 levels in the proximal tubules. Overall, we show that renal-denervated WT and diabetic mice recapitulate the phenotype of improved glucose tolerance and elevated glycosuria associated with reduced renal GLUT2 levels observed in obese ArcPomc-/- mice. CONCLUSION: Hence, we conclude that ArcPomc is essential in maintaining basal RSNA and that elevated glycosuria is a possible mechanism to explain improved glucose tolerance after renal denervation in drug resistant hypertensive patients. PMID- 29031727 TI - Angiopoietin-like protein 4 is an exercise-induced hepatokine in humans, regulated by glucagon and cAMP. AB - OBJECTIVE: Angiopoietin-like protein-4 (ANGPTL4) is a circulating protein that is highly expressed in liver and implicated in regulation of plasma triglyceride levels. Systemic ANGPTL4 increases during prolonged fasting and is suggested to be secreted from skeletal muscle following exercise. METHODS: We investigated the origin of exercise-induced ANGPTL4 in humans by measuring the arterial-to-venous difference over the leg and the hepato-splanchnic bed during an acute bout of exercise. Furthermore, the impact of the glucagon-to-insulin ratio on plasma ANGPTL4 was studied in healthy individuals. The regulation of ANGPTL4 was investigated in both hepatic and muscle cells. RESULTS: The hepato-splanchnic bed, but not the leg, contributed to exercise-induced plasma ANGPTL4. Further studies using hormone infusions revealed that the glucagon-to-insulin ratio is an important regulator of plasma ANGPTL4 as elevated glucagon in the absence of elevated insulin increased plasma ANGPTL4 in resting subjects, whereas infusion of somatostatin during exercise blunted the increase of both glucagon and ANGPTL4. Moreover, activation of the cAMP/PKA signaling cascade let to an increase in ANGPTL4 mRNA levels in hepatic cells, which was prevented by inhibition of PKA. In humans, muscle ANGPTL4 mRNA increased during fasting, with only a marginal further induction by exercise. In human muscle cells, no inhibitory effect of AMPK activation could be demonstrated on ANGPTL4 expression. CONCLUSIONS: The data suggest that exercise-induced ANGPTL4 is secreted from the liver and driven by a glucagon-cAMP-PKA pathway in humans. These findings link the liver, insulin/glucagon, and lipid metabolism together, which could implicate a role of ANGPTL4 in metabolic diseases. PMID- 29031728 TI - Single-cell RNA-sequencing reveals a distinct population of proglucagon expressing cells specific to the mouse upper small intestine. AB - OBJECTIVES: To identify sub-populations of intestinal preproglucagon-expressing (PPG) cells producing Glucagon-like Peptide-1, and their associated expression profiles of sensory receptors, thereby enabling the discovery of therapeutic strategies that target these cell populations for the treatment of diabetes and obesity. METHODS: We performed single cell RNA sequencing of PPG-cells purified by flow cytometry from the upper small intestine of 3 GLU-Venus mice. Cells from 2 mice were sequenced at low depth, and from the third mouse at high depth. High quality sequencing data from 234 PPG-cells were used to identify clusters by tSNE analysis. qPCR was performed to compare the longitudinal and crypt/villus locations of cluster-specific genes. Immunofluorescence and mass spectrometry were used to confirm protein expression. RESULTS: PPG-cells formed 3 major clusters: a group with typical characteristics of classical L-cells, including high expression of Gcg and Pyy (comprising 51% of all PPG-cells); a cell type overlapping with Gip-expressing K-cells (14%); and a unique cluster expressing Tph1 and Pzp that was predominantly located in proximal small intestine villi and co-produced 5-HT (35%). Expression of G-protein coupled receptors differed between clusters, suggesting the cell types are differentially regulated and would be differentially targetable. CONCLUSIONS: Our findings support the emerging concept that many enteroendocrine cell populations are highly overlapping, with individual cells producing a range of peptides previously assigned to distinct cell types. Different receptor expression profiles across the clusters highlight potential drug targets to increase gut hormone secretion for the treatment of diabetes and obesity. PMID- 29031729 TI - Point mutation of Ffar1 abrogates fatty acid-dependent insulin secretion, but protects against HFD-induced glucose intolerance. AB - OBJECTIVE: The fatty acid receptor 1 (FFAR1/GPR40) mediates fatty acid-dependent augmentation of glucose-induced insulin secretion (GIIS) in pancreatic beta cells. Genetically engineered Ffar1-knockout/congenic mice univocally displayed impaired fatty acid-mediated insulin secretion, but in vivo experiments delivered controversial results regarding the function of FFAR1 in glucose homeostasis and liver steatosis. This study presents a new coisogenic mouse model carrying a point mutation in Ffar1 with functional consequence. These mice reflect the situations in humans in which point mutations can lead to protein malfunction and disease development. METHODS: The Munich N-ethyl-N-nitrosourea (ENU) mutagenesis derived F1 archive containing over 16,800 sperms and corresponding DNA samples was screened for mutations in the coding region of Ffar1. Two missense mutations (R258W and T146S) in the extracellular domain of the protein were chosen and homozygote mice were generated. The functional consequence of these mutations was examined in vitro in isolated islets and in vivo in chow diet and high fat diet fed mice. RESULTS: Palmitate, 50 MUM, and the FFAR1 agonist TUG-469, 3 MUM, stimulated insulin secretion in islets of Ffar1T146S/T146S mutant mice and of wild-type littermates, while in islets of Ffar1R258W/R258W mutant mice, these stimulatory effects were abolished. Insulin content and mRNA levels of Ffar1, Glp1r, Ins2, Slc2a2, Ppara, and Ppard were not significantly different between wild-type and Ffar1R258W/R258W mouse islets. Palmitate exposure, 600 MUM, significantly increased Ppara mRNA levels in wild-type but not in Ffar1R258W/R258W mouse islets. On the contrary, Slc2a2 mRNA levels were significantly reduced in both wild-type and Ffar1R258W/R258W mouse islets after palmitate treatment. HFD feeding induced glucose intolerance in wild-type mice. Ffar1R258W/R258W mutant mice remained glucose tolerant although their body weight gain, liver steatosis, insulin resistance, and plasma insulin levels were not different from those of wild-type littermates. Worth mentioning, fasting plasma insulin levels were lower in Ffar1R258W/R258W mice. CONCLUSION: A point mutation in Ffar1 abrogates the stimulatory effect of palmitate on GIIS, an effect that does not necessarily translate to HFD-induced glucose intolerance. PMID- 29031730 TI - Bidirectional manipulation of gene expression in adipocytes using CRISPRa and siRNA. AB - OBJECTIVE: Functional investigation of novel gene/protein targets associated with adipocyte differentiation or function heavily relies on efficient and accessible tools to manipulate gene expression in adipocytes in vitro. Recent advances in gene-editing technologies such as CRISPR-Cas9 have not only eased gene editing but also greatly facilitated modulation of gene expression without altering the genome. Here, we aimed to develop and validate a competent in vitro adipocyte model of controllable functionality as well as multiplexed gene manipulation in adipocytes, using the CRISPRa "SAM" system and siRNAs to simultaneously overexpress and silence selected genes in the same cell populations. METHODS: We introduced a stable expression of dCas9-VP64 and MS2-P65, the core components of the CRIPSRa SAM system, in mesenchymal C3H/10T1/2 cells through viral delivery and used guide RNAs targeting Ppargamma2, Prdm16, Zfp423, or Ucp1 to control the expression of key genes involved in adipocyte differentiation and function. We additionally co-transfected mature adipocytes with sgRNA plasmids and siRNA to simultaneously up-regulate and silence selected genes. Quantitative gene expression, oxygen consumption, fluorescence-activated cell sorting and immunocytochemistry served as validation proxies in pre- or mature adipocytes. RESULTS: CRISPRa SAM-mediated up-regulation of a key adipogenic gene, Ppargamma2, was successfully achieved using selected sgRNAs targeting the Ppargamma2 promoter region (i.e. up to 104 fold); this induction was long lasting and sufficient to promote adipogenesis. Furthermore, co-activation of Ppargamma2 with either Prdm16 or Zfp423 transcripts drove distinct thermogenic gene expression patterns associated with increased or decreased oxygen consumption, respectively, mimicking typical characteristics of brite/beige or white cell lineages. Lastly, we demonstrated that up-regulation of endogenous genes in mature adipocytes was also easily and efficiently achieved using CRISPRa SAM, here exemplified by targeted Ucp1 overexpression (up to 4 * 103 fold), and that it was compatible with concomitant gene silencing using siRNA, allowing for bidirectional manipulation of gene expression in the same cell populations. CONCLUSIONS: We demonstrate that the CRISPRa SAM system can be easily adopted and used to efficiently manipulate gene expression in pre- and mature adipocytes in vitro. Moreover, we describe a novel methodological approach combining the activation of endogenous genes and siRNA-mediated gene silencing, thus providing a powerful tool to functionally decipher genetic factors controlling adipogenesis and adipocyte functions. PMID- 29031731 TI - Evaluation of a melanocortin-4 receptor (MC4R) agonist (Setmelanotide) in MC4R deficiency. AB - OBJECTIVE: Pro-opiomelanocortin (POMC)-derived peptides act on neurons expressing the Melanocortin 4 receptor (MC4R) to reduce body weight. Setmelanotide is a highly potent MC4R agonist that leads to weight loss in diet-induced obese animals and in obese individuals with complete POMC deficiency. While POMC deficiency is very rare, 1-5% of severely obese individuals harbor heterozygous mutations in MC4R. We sought to assess the efficacy of Setmelanotide in human MC4R deficiency. METHODS: We studied the effects of Setmelanotide on mutant MC4Rs in cells and the weight loss response to Setmelanotide administration in rodent studies and a human clinical trial. We annotated the functional status of 369 published MC4R variants. RESULTS: In cells, we showed that Setmelanotide is significantly more potent at MC4R than the endogenous ligand alpha-melanocyte stimulating hormone and can disproportionally rescue signaling by a subset of severely impaired MC4R mutants. Wild-type rodents appear more sensitive to Setmelanotide when compared to MC4R heterozygous deficient mice, while MC4R knockout mice fail to respond. In a 28-day Phase 1b clinical trial, Setmelanotide led to weight loss in obese MC4R variant carriers. Patients with POMC defects upstream of MC4R show significantly more weight loss with Setmelanotide than MC4R deficient patients or obese controls. CONCLUSIONS: Setmelanotide led to weight loss in obese people with MC4R deficiency; however, further studies are justified to establish whether Setmelanotide can elicit clinically meaningful weight loss in a subset of the MC4R deficient obese population. PMID- 29031732 TI - Neonatal pancreatic pericytes support beta-cell proliferation. AB - OBJECTIVE: The maintenance and expansion of beta-cell mass rely on their proliferation, which reaches its peak in the neonatal stage. beta-cell proliferation was found to rely on cells of the islet microenvironment. We hypothesized that pericytes, which are components of the islet vasculature, support neonatal beta-cell proliferation. METHODS: To test our hypothesis, we combined in vivo and in vitro approaches. Briefly, we used a Diphtheria toxin based transgenic mouse system to specifically deplete neonatal pancreatic pericytes in vivo. We further cultured neonatal pericytes isolated from the neonatal pancreas and combined the use of a beta-cell line and primary cultured mouse beta-cells. RESULTS: Our findings indicate that neonatal pancreatic pericytes are required and sufficient for beta-cell proliferation. We observed impaired proliferation of neonatal beta-cells upon in vivo depletion of pancreatic pericytes. Furthermore, exposure to pericyte-conditioned medium stimulated proliferation in cultured beta-cells. CONCLUSIONS: This study introduces pancreatic pericytes as regulators of neonatal beta-cell proliferation. In addition to advancing current understanding of the physiological beta-cell replication process, these findings could facilitate the development of protocols aimed at expending these cells as a potential cure for diabetes. PMID- 29031733 TI - Prognostic outcomes in advanced breast cancer: the metastasis-free interval is important. AB - Metastatic breast cancer is a heterogeneous disease with a diverse clinical course. There have been limited studies regarding prognostic outcomes in patients with de novo metastatic breast cancer versus those with metastatic recurrence, with controversial observations. In this study, we sought to examine the difference in survival outcomes among patients with advanced breast cancer stratified based on metastasis-free interval (MFI) and to further explore the role of systemic therapy in these patient groups. Of 569 consecutive patients with stage IV breast cancer between 1998 and 2013, 201 had de novo metastatic disease (metastasis at diagnosis) and 368 developed metastatic recurrence, including 168 with an MFI<=24 months and 200 with an MFI>24 months. In the 492 patients who received systemic therapy, de novo metastasis was an independent favorable prognostic factor for overall survival after metastasis when compared with metastatic recurrence irrespective of MFI. Compared with the patients with metastatic recurrence with an MFI<=24 months, those with an MFI>24 months had a superior survival outcome, although it did not reach statistical significance by multivariate analysis. In contrast, de novo metastatic breast cancer was associated with a worse prognosis when compared with recurring metastasis in the patients who did not receive systemic treatment. These findings provide more insight into the natural history of advanced breast cancer, thus necessitating further investigation into the molecular mechanism of drug resistance. PMID- 29031734 TI - Residual NO modulates contractile responses and membrane potential in isolated rat mesenteric arteries. AB - Shear stress or vasocontriction causes endothelial nitric oxide (NO) release resulting in the regulation of vascular smooth muscle tone in small resistance arteries. Generation of NO is inhibited by nitric oxide synthase (NOS) inhibitors. In this study, we investigated the effect of residual NO, released even in the presence of NOS inhibitors, on the membrane depolarization and phenylephrine-induced contractions of smooth muscle. For this purpose, we used hydroxocobalamin (HC), an NO scavenger, in the presence of NOS inhibitiors, Nomega-nitro- L-arginine (L-NA) or Nomega-nitro-L-arginine methyl ester (L-NAME) in mesenteric arteries isolated from rats. Phenylephrine (0,01-10 MUM), an alpha1 adrenoceptor agonist, led to depolarisation and concentration-dependent contraction in mesenteric arteries. The depolarisation and contractile responses were augmented by L-NA or L-NAME. Hydroxocobalamine (HC) or carboxy-PTIO (c-PTIO) also caused to further increase the membrane depolarization and contractions induced by phenylephrine in the presence of NOS inhibitors. Chemical removal of endothelium by saponin, tyrosin kinase inhibitor erbstatin A, but not calmodulin inhibitor calmidazolium inhibited the additional membrane depolarisation and contractile responses induced by L-NA or L-NAME and L-NA or L-NAME plus HC. These findings show that residual NO modulates the contractile responses in isolated rat mesenteric arteries by exerting a tonic inhibitor effect on the depolarization and vasoconstriction induced by phenylephrine. PMID- 29031735 TI - The temporal expression profile of a Nos3-related natural antisense RNA in the brain suggests a possible role in neurogenesis. AB - Experimental work over the past several years has revealed an unexpected abundance of long natural antisense transcripts (NATs) in eukaryotic species. In light of the proposed role of such RNA molecules in the regulation of gene expression in the brain, attention is now focused on specific examples of neuronal NATs. Of particular interest are NATs that are complementary to mRNAs encoding nitric oxide synthase (NOS), the enzyme responsible for production of the important gaseous neurotransmitter nitric oxide (NO). Here we study the temporal expression profile of murine Nos3as NAT in the brain. Notably, Nos3as NAT is known to act as a negative regulator of Nos3 gene expression. The results of our quantitative analysis reveal differential expression of Nos3as NAT during embryonic and post-embryonic stages of development of the brain. Also, they show that the low levels of Nos3as NAT coincides with active neurogenesis. In addition we report on an inverse correlation between the relative expression level of Nos3as NAT and the level of Nos3 protein. Thus our data raise the hypothesis that the Nos3as NAT regulates neurogenesis through suppression of Nos3 gene activity. This idea is further supported by experiments conducted on the olfactory bulbs and cultured neuroblastoma cells. PMID- 29031736 TI - Livestock ownership and microbial contamination of drinking-water: Evidence from nationally representative household surveys in Ghana, Nepal and Bangladesh. AB - BACKGROUND: Current priorities for diarrhoeal disease prevention include use of sanitation and safe water. There have been few attempts to quantify the importance of animal faeces in drinking-water contamination, despite the presence of potentially water-borne zoonotic pathogens in animal faeces. OBJECTIVES: This study aimed to quantify the relationship between livestock ownership and point-of consumption drinking-water contamination. METHODS: Data from nationally representative household surveys in Nepal, Bangladesh, and Ghana, each with associated water quality assessments, were used. Multinomial regression adjusting for confounders was applied to assess the relationship between livestock ownership and the level of drinking-water contamination with E. coli. RESULTS: Ownership of five or more large livestock (e.g. cattle) was significantly associated with drinking-water contamination in Ghana (RRR=7.9, 95% CI=1.6 to 38.9 for medium levels of contamination with 1-31cfu/100ml; RRR=5.2, 95% CI=1.1 24.5 for high levels of contamination with >31cfu/100ml) and Bangladesh (RRR=2.4, 95% CI=1.3-4.5 for medium levels of contamination; non-significant for high levels of contamination). Ownership of eight or more poultry (chickens, guinea fowl, ducks or turkeys) was associated with drinking-water contamination in Bangladesh (RRR=1.5, 95% CI=1.1-2.0 for medium levels of contamination, non significant for high levels of contamination). CONCLUSIONS: These results suggest that livestock ownership is a significant risk factor for the contamination of drinking-water at the point of consumption. This indicates that addressing human sanitation without consideration of faecal contamination from livestock sources will not be sufficient to prevent drinking-water contamination. PMID- 29031737 TI - The evolution of the genetic code: Impasses and challenges. AB - The origin of the genetic code and translation is a "notoriously difficult problem". In this survey we present a list of questions that a full theory of the genetic code needs to answer. We assess the leading hypotheses according to these criteria. The stereochemical, the coding coenzyme handle, the coevolution, the four-column theory, the error minimization and the frozen accident hypotheses are discussed. The integration of these hypotheses can account for the origin of the genetic code. But experiments are badly needed. Thus we suggest a host of experiments that could (in)validate some of the models. We focus especially on the coding coenzyme handle hypothesis (CCH). The CCH suggests that amino acids attached to RNA handles enhanced catalytic activities of ribozymes. Alternatively, amino acids without handles or with a handle consisting of a single adenine, like in contemporary coenzymes could have been employed. All three scenarios can be tested in in vitro compartmentalized systems. PMID- 29031738 TI - Concepts, actions, and objects: Functional and neural perspectives. PMID- 29031739 TI - Neural correlates of visuospatial bias in patients with left hemisphere stroke: a causal functional contribution analysis based on game theory. AB - Stroke patients frequently display spatial neglect, an inability to report, or respond to, relevant stimuli in the contralesional space. Although this syndrome is widely considered to result from the dysfunction of a large-scale attention network, the individual contributions of damaged grey and white matter regions to neglect are still being disputed. Moreover, while the neuroanatomy of neglect in right hemispheric lesions is well studied, the contributions of left hemispheric brain regions to visuospatial processing are less well understood. To address this question, 128 left hemisphere acute stroke patients were investigated with respect to left- and rightward spatial biases measured as severity of deviation in the line bisection test and as Center of Cancellation (CoC) in the Bells Test. Causal functional contributions and interactions of nine predefined grey and white matter regions of interest in visuospatial processing were assessed using Multi-perturbation Shapley value Analysis (MSA). MSA, an inference approach based on game theory, constitutes a robust and exact multivariate mathematical method for inferring functional contributions from multi-lesion patterns. According to the analysis of performance in the Bells test, leftward attentional bias (contralesional deficit) was associated with contributions of the left superior temporal gyrus and rightward attentional bias with contributions of the left inferior parietal lobe, whereas the arcuate fascicle was contributed to both contra- and ipsilesional bias. Leftward and rightward deviations in the line bisection test were related to contributions of the superior longitudinal fascicle and the inferior parietal lobe, correspondingly. Thus, Bells test and line bisection tests, as well as ipsi- and contralesional attentional biases in these tests, have distinct neural correlates. Our findings demonstrate the contribution of different grey and white matter structures to contra- and ipsilesional spatial biases as revealed by left hemisphere stroke. The results provide new insights into the role of the left hemisphere in visuospatial processing. PMID- 29031740 TI - Eyetracking metrics reveal impaired spatial anticipation in behavioural variant frontotemporal dementia. AB - Eyetracking technology has had limited application in the dementia field to date, with most studies attempting to discriminate syndrome subgroups on the basis of basic oculomotor functions rather than higher-order cognitive abilities. Eyetracking-based tasks may also offer opportunities to reduce or ameliorate problems associated with standard paper-and-pencil cognitive tests such as the complexity and linguistic demands of verbal test instructions, and the problems of tiredness and attention associated with lengthy tasks that generate few data points at a slow rate. In the present paper we adapted the Brixton spatial anticipation test to a computerized instruction-less version where oculomotor metrics, rather than overt verbal responses, were taken into account as indicators of high level cognitive functions. Twelve bvFTD (in whom spatial anticipation deficits were expected), six SD patients (in whom deficits were predicted to be less frequent) and 38 healthy controls were presented with a 10 * 7 matrix of white circles. During each trial (N = 24) a black dot moved across seven positions on the screen, following 12 different patterns. Participants' eye movements were recorded. Frequentist statistical analysis of standard eye movement metrics were complemented by a Bayesian machine learning (ML) approach in which raw eyetracking time series datasets were examined to explore the ability to discriminate diagnostic group performance not only on the overall performance but also on individual trials. The original pen and paper Brixton test identified a spatial anticipation deficit in 7/12 (58%) of bvFTD and in 2/6 (33%) of SD patients. The eyetracking frequentist approach reported the deficit in 11/12 (92%) of bvFTD and in none (0%) of the SD patients. The machine learning approach had the main advantage of identifying significant differences from controls in 24/24 individual trials for bvFTD patients and in only 12/24 for SD patients. Results indicate that the fine grained rich datasets obtained from eyetracking metrics can inform us about high level cognitive functions in dementia, such as spatial anticipation. The ML approach can help identify conditions where subtle deficits are present and, potentially, contribute to test optimisation and the reduction of testing times. The absence of instructions also favoured a better distinction between different clinical groups of patients and can help provide valuable disease-specific markers. PMID- 29031741 TI - Further evidences for sleep instability and impaired spindle-delta dynamics in schizophrenia: a whole-night polysomnography study with neuroloop-gain and sleep cycle analysis. AB - OBJECTIVE: Sleep offers a unique window into the brain dysfunctions in schizophrenia. Many past sleep studies have reported abnormalities in both macro sleep architecture (like increased awakenings) as well as micro-sleep architecture (like spindle deficits) in patients with schizophrenia (PSZ). The present study attempts to replicate previous reports of macro- and micro-sleep architectural abnormalities in schizophrenia. In addition, the study also examined sleep-stage changes and spindle-delta dynamics across sleep-cycles to provide further evidence in support of the dysfunctional thalamocortical mechanisms causing sleep instability and poor sleep maintenance associated with schizophrenia pathophysiology. METHODS: Whole-night polysomnography was carried out among 45 PSZ and 39 age- and gender-matched healthy control subjects. Sleep stage dynamics were assessed across sleep-cycles using a customized software algorithm. Spindle-delta dynamics across sleep-cycles were determined using neuroloop-gain analysis. RESULTS: PSZ showed macro-sleep architecture abnormalities such as prolonged sleeplessness, increased intermittent-awakenings, long sleep-onset latency, reduced non-rapid eye movement (NREM) stage 2 sleep, increased stage transitions, and poor sleep efficiency. They also showed reduced spindle density (sigma neuroloop-gain) but comparable slow wave density (delta neuroloop-gain) throughout the sleep. Sleep-cycle-wise analysis revealed transient features of sleep instability due to significantly increased intermittent awakenings especially in the first and third sleep-cycles, and unstable and recurrent stage transitions in both NREM (first sleep-cycle) and rapid eye movement (REM) sleep-periods (second sleep-cycle). Spindle deficits were persistent across the first three cycles and were positively correlated with sleep disruption during the subsequent REM sleep. CONCLUSIONS: In addition to replicating previously reported sleep deficits in PSZ, the current study showed subtle deficits in NREM-REM alterations across whole-night polysomnography. These results point towards a possible maladaptive interplay between unstable thalamocortical networks, resulting in sleep-cycle-specific instability patterns associated with schizophrenia pathophysiology. PMID- 29031742 TI - A preliminary examination of gut microbiota, sleep, and cognitive flexibility in healthy older adults. AB - OBJECTIVES: Inadequate sleep increases the risk for age-related cognitive decline and recent work suggests a possible role of the gut microbiota in this phenomenon. Partial sleep deprivation alters the human gut microbiome, and its composition is associated with cognitive flexibility in animal models. Given these findings, we examined the possible relationship among the gut microbiome, sleep quality, and cognitive flexibility in a sample of healthy older adults. METHODS: Thirty-seven participants (age 64.59 +/- 7.54 years) provided a stool sample for gut microbial sequencing and completed the Pittsburgh Sleep Quality Index and Stroop Color Word Test as part of a larger project. RESULTS: Better sleep quality was associated with better Stroop performance and higher proportions of the gut microbial phyla Verrucomicrobia and Lentisphaerae. Stroop Word and Color-Word performance correlated with higher proportions of Verrucomicrobia and Lentisphaerae. Partial correlations suggested that the relationship between Lentisphaerae and Stroop Color-Word performance was better accounted for by sleep quality; sleep quality remained a significant predictor of Color-Word performance, independent of the Lentisphaerae proportion, while the relationship between Lentisphaerae and Stroop performance was non-significant. Verrucomicrobia and sleep quality were not associated with Stroop Word performance independent of one another. CONCLUSIONS: The current findings suggest a possible relationship among sleep quality, composition of the gut microbiome, and cognitive flexibility in healthy older adults. Prospective and experimental studies are needed to confirm these findings and determine whether improving microbiome health may buffer against sleep-related cognitive decline in older adults. PMID- 29031744 TI - College student with actigraphy performed during final examinations. PMID- 29031743 TI - Identifying clinically important difference on the Epworth Sleepiness Scale: results from a narcolepsy clinical trial of JZP-110. AB - BACKGROUND: While scores <=10 on the Epworth Sleepiness Scale (ESS) are within the normal range, the reduction in elevated ESS score that is clinically meaningful in patients with narcolepsy has not been established. METHODS: This post hoc analysis of a clinical trial of patients with narcolepsy evaluated correlations between Patient Global Impression of Change (PGI-C) and ESS. Data of adult patients with narcolepsy from a double-blind, 12-week placebo-controlled study of JZP-110, a wake-promoting agent, were used in this analysis. Descriptive statistics and receiver operating characteristic (ROC) analysis compared PGI-C (anchor measure) to percent change from baseline in ESS to establish the responder criterion from patients taking either placebo or JZP-110 (treatments). RESULTS: At week 12, patients (n = 10) who reported being "very much improved" on the PGI-C had a mean 76.7% reduction in ESS score, and patients (n = 33) who reported being "much improved" on the PGI-C had a mean 49.1% reduction in ESS score. ROC analysis showed that patients who improved were almost exclusively from JZP-110 treatment group, with an area-under-the-curve of 0.9, and revealed that a 25% reduction in ESS (sensitivity, 81.4%; specificity, 80.9%) may be an appropriate threshold for defining a meaningful patient response to JZP-110 and placebo. CONCLUSIONS: A >=25% reduction in patients' subjective ESS score may be useful as a threshold to identify patients with narcolepsy who respond to JZP-110 treatment. PMID- 29031745 TI - Sleep architecture in patients with Juvenile Myoclonic Epilepsy. AB - AIM: The aim is to analyze the sleep architecture using polysomnography (PSG) in patients with Juvenile Myoclonic Epilepsy (JME): (newly diagnosed and those on valproate drug) attending epilepsy clinic at Alexandria University Hospitals. METHODS: This study involved 20 patients with JME on valproate (age: 22.40 +/- 5.80 years; M:F = 6:14), 20 newly diagnosed patients (age: 18.55 +/- 6.0 years; M:F = 6:14), and 20 matched healthy controls (age: 22.10 +/- 5.0 years; M:F = 6:14). Clinical assessment, electroencephalogram (EEG), evaluation with comprehensive sleep questionnaire, and PSG were done for all patients. RESULTS: PSG showed significant alterations in sleep architecture in the total JME group in the form of reduced mean sleep efficiency (p = 0.001*), increased mean Rapid eye movement (REM) onset latency (p = 0.046*), decrease mean REM percentage (p = 0.011*), increased mean wakefulness after sleep onset (p = 0.018*), increase the index of total arousal (p = 0.005*), increased mean periodic limb movement index (P = 0.001*), and reduced apnea hypopnea index (P = <0.001) in comparison to control group. Valproate treated group showed increased sleep efficiency (p = 0.040*), decreased REM arousal index (P = 0.012), longer stage 3 (P = 0.038), and prolonged stage 2 (P = 0.049*) than the newly diagnosed group. CONCLUSIONS: Sleep architecture was significantly disturbed in JME, with improvement in sleep efficiency in valproate treated patients. PMID- 29031746 TI - Relapse insomnia increases greater risk of anxiety and depression: evidence from a population-based 4-year cohort study. AB - OBJECTIVE: We investigated the longitudinal impacts of insomnia on the subsequent developments of anxiety and depression during a four-year follow-up. We further categorized individuals with insomnia into different insomnia subgroups to examine whether the risk of anxiety and depression varies by subtype. METHODS: Participants were identified from National Health Insurance enrollees in Taiwan during 2002-2009. The study included 19,273 subjects with insomnia and 38,546 matched subjects without insomnia. All subjects did not have previous diagnosis of insomnia, sleep apnea, anxiety, or depression. RESULTS: Compared with non insomniacs, insomniacs had a higher risk of developing anxiety only [adjusted hazard ratio (HR) = 8.83, 95% CI = 7.59-10.27], depression only (adjusted HR = 8.48, 95% CI = 6.92-10.39), and both anxiety and depression (adjusted HR = 17.98, 95% CI = 12.65-25.56). When breaking down the insomnia subgroups, individuals with a relapse of insomnia (adjusted HR = 10.42-26.80) had the highest risk of anxiety only, depression only, and both anxiety and depression, followed by persistent insomnia (adjusted HR = 9.82-18.98), then remitted insomnia (adjusted HR = 4.50-8.27). All three insomnia subgroups had a greater four-year cumulative incidence rate than the non-insomnia group for anxiety only, depression only, and both anxiety and depression (p < 0.0001). CONCLUSION: Our findings reinforce the clinical predictor role of insomnia in the future onset of anxiety or/and depression. Awareness of insomnia and treatment of insomnia should be recommended at clinics, and patterns of insomnia should be monitored to help treatment and control of subsequent psychiatric disorders. Future research with comprehensive data collection is needed to identify factors that contribute to different insomnia subtypes. PMID- 29031747 TI - Sleep phenotypes in infants and toddlers with neurogenetic syndromes. AB - BACKGROUND: Although sleep problems are well characterized in preschool- and school-age children with neurogenetic syndromes, little is known regarding the early emergence of these problems in infancy and toddlerhood. To inform syndrome specific profiles and targets for intervention, we compared parent-reported sleep problems in infants and toddlers with Angelman syndrome (AS), Williams syndrome (WS), and Prader-Willi syndrome (PWS) with patterns observed among same-aged typically developing (TD) controls. METHODS: Mothers of 80 children (18 AS, 19 WS, 19 PWS, and 24 TD) completed the Brief Infant Sleep Questionnaire. Primary dependent variables included (1) sleep onset latency, (2) total sleep duration, (3) daytime and nighttime sleep duration, and (4) sleep problem severity, as measured by both maternal impression and National Sleep Foundation guidelines. RESULTS: Sleep problems are relatively common in children with neurogenetic syndromes, with 41% of mothers reporting problematic sleep and 29% of children exhibiting abnormal sleep durations as per national guidelines. Across genetic subgroups, problems are most severe in children with AS and WS, particularly in relation to nighttime sleep duration. Although atypical sleep is characteristically reported in each syndrome later in development, infants and toddlers with PWS exhibited largely typical patterns, potentially indicating delayed onset of sleep problems in concordance with other medical features of PWS. CONCLUSIONS: Our findings suggest that sleep problems in neurogenetic syndromes emerge as early as infancy and toddlerhood, with variable profiles across genetic subgroups. This work underscores the importance of early sleep screenings as part of routine medical care of neurosyndromic populations and the need for targeted, syndrome-sensitive treatment. PMID- 29031749 TI - Vagal nerve stimulator induced chin electromyography artifact. PMID- 29031748 TI - Association of sleep duration and incidence of diabetes modified by tea consumption: a report from the Shanghai men's health study. AB - OBJECTIVES: To evaluate the association between sleep duration and the incidence of diabetes stratified by sleep-related factors among Chinese men. METHODS: This study included 34,825 men who provided information on sleep-related questions in the Shanghai Men's Health Study, a population-based cohort study conducted in Shanghai, China from 2002 to 2011. Participants were excluded who had a history of diabetes or who were diagnosed with diabetes within 2 years of recruitment. Cox regression was employed to evaluate the influence of sleep duration and its interaction with sleep-related factors on diabetes risk. RESULTS: A total of 1521 incident cases were documented during a median of 5.6 follow-up years. Adjusted hazard ratios and 95% confidence intervals were 1.0 (0.9-1.1) and 1.2 (1.0-1.3) for men who slept <7 and >=8 h per day, respectively, compared with those who slept 7 h per day (ptrend = 0.01). Stratified analyses revealed that the association between sleep duration and risk of diabetes was only statistically significant among current smokers and regular drinkers, never tea drinkers, men with a high body mass index, hypertension or comorbidity, and men who did not work nightshift or who snored. A statistically significant interaction between tea drinking and sleep duration was observed (pinteraction = 0.01). The above association patterns remained when daytime nappers were excluded from the analyses. CONCLUSIONS: The data suggested that longer sleep duration, particularly among individuals already exhibiting factors linked to poor quality of sleep, was associated with diabetes. The association between sleep duration and diabetes may be modified by tea drinking, especially in older men or men with more sleep-related factors. PMID- 29031750 TI - The urge to move and breathe - the impact of obstructive sleep apnea syndrome treatment in patients with previously diagnosed, clinically significant restless legs syndrome. AB - OBJECTIVE: The association between restless legs syndrome (RLS) and obstructive sleep apnea syndrome (OSAS) has seldom been reported. There is one study reporting improvement of RLS symptoms severity in patients naive of treatment after initiation of continuous positive airway pressure (CPAP) for OSAS. The aim of this study was to evaluate the impact of the OSAS treatment in patients with previously diagnosed, clinically significant RLS in a usual clinical setting. METHODS: This was a retrospective study of RLS patients from a sleep clinic with a concomitant or subsequent diagnosis of OSAS. All patients who started treatment for OSAS and had a follow-up of >=3 months were selected. Exclusion criteria included noncompliance, absence of sufficient information on clinical records, and RLS improvement following treatment of secondary causes. The primary outcome variable was clinical status of RLS symptoms following OSA treatment. Other variables included demographics, RLS treatment and outcome, OSA diagnosis, treatment, compliance, outcome, and PSG characteristics. RESULTS: From a database of 97 RLS patients, 56 patients had both OSA and RLS. Of these patients, 28 met the criteria for the study. In all, 17 patients (60.9%) were female, with a mean age 60 years. A total of 16 patients (57.1%) were diagnosed with idiopathic RLS. OSAS was diagnosed, on average, 21 months after the RLS diagnosis. A total of 19 (70.4%) patients were overweight or obese, 26 (92.9%) reported snoring, and 10 (35.7%) witnessed apneas. A total of 16 patients (57.1%) had excessive daytime sleepiness and 23 (84.1%) had insomnia. The mean apnea-hypopnea index was 19. Patients were mostly treated with dopamine agonists (19 patients, 67.9%) for the RLS, and nine patients were treated with more than two drugs for RLS. A total of 20 patients (71.4%) had improvement of symptoms of RLS after therapy for OSAS, of whom nine stopped drug therapy and eight reduced the dose. CONCLUSIONS: In patients with clinically significant RLS, treatment of concomitant OSAS significantly improved RLS symptoms, enabling drug therapy reduction in more than half of the patients. These data reinforce the need to actively diagnose OSAS in RLS patients. PMID- 29031751 TI - Phasic activity and the importance of irregular breathing. PMID- 29031752 TI - Sleep and slow-wave activity in depressed adolescent boys: a preliminary study. AB - OBJECTIVE: Adolescence is a vulnerable period of life that is characterized by increasing incidence of depression. Sleep disturbance is one of the diagnostic symptoms of depressive disorder. Adolescence is also characterized by dramatic maturational changes in sleep and its regulation. The goal of this study was to assess sleep macroarchitecture and slow-wave activity (SWA) in depressed adolescent boys. METHODS: Eight non-medicated adolescent boys meeting the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria for depressive disorder and 10 age-matched healthy controls (average age 16.0 years) underwent polysomnography in their home environment for two consecutive nights. Sleep macroarchitecture, SWA, and SWA dissipation were assessed in all subjects. RESULTS: Depressed boys showed a flattened pattern of SWA dissipation through the night. SWA power was lower during the first non-rapid eye movement (NREM) episode in the frontal derivation and higher during the third NREM episode in the central derivation in the group of depressed boys as compared to healthy boys. The SWA dissipation pattern correlated with the severity of depressive symptoms, and the correlation was strongest in the frontal derivation. In addition, total sleep time was shorter in patients as compared to the control group, but no other differences were found in the macroarchitecture of sleep. CONCLUSION: Depression in adolescent boys is characterized by more evenly distributed SWA through the night as compared to healthy subjects, and we showed for the first time that this pattern of SWA distribution is associated with severity of depressive symptoms. These findings suggest that homeostatic regulation of sleep may be impaired in adolescent depression. PMID- 29031753 TI - The short and long of adolescent sleep: the unique impact of day length. AB - STUDY OBJECTIVES: Variation in day length is proposed to impact sleep, yet it is unknown whether this is above the influence of behavioural factors. Day length, sleep hygiene, and parent-set bedtime were simultaneously explored, to investigate the relative importance of each on adolescents' sleep. METHODS: An online survey was distributed in four countries at varying latitudes/longitudes (Australia, The Netherlands, Canada, Norway). RESULTS: Overall, 711 (242 male; age M = 15.7 +/- 1.6, range = 12-19 yrs) adolescents contributed data. Hierarchical regression analyses showed good sleep hygiene was associated with earlier bedtime, shorter sleep latency, and longer sleep (beta = -0.34; -0.30; 0.32, p < 0.05, respectively). Shorter day length predicted later bedtime (beta = 0.11, p = 0.009), decreased sleep latency (beta = -0.21, p < 0.001), and total sleep (beta = -0.14, p = 0.001). Longer day length predicted earlier bedtimes (beta = -0.11, p = 0.004), and longer sleep (beta = 0.10, p = 0.011). CONCLUSIONS: Sleep hygiene had the most clinical relevance for improving sleep, thus should be considered when implementing adolescent sleep interventions, particularly as small negative effects of shorter day length may be minimised through sleep hygiene techniques. PMID- 29031754 TI - Predictors of insomnia onset in adolescents in Japan. AB - OBJECTIVE: The objective of this study was to clarify the incidence rate and predictive factors of insomnia in Japanese junior and senior high school students. METHODS: We conducted a baseline survey on first year junior and senior high school students (seventh and 10th graders) throughout the nation. A follow up survey was then conducted two years later. For both surveys, we used self administered questionnaires inquiring about sleep, mental health status, lifestyle, participation in club activities, and study hours. RESULTS: A total of 3473 students (776 junior high and 2697 senior high) were suitable for analysis. During the two years leading to the follow-up study, the incidence rate of newly developed insomnia was 7.8% among junior high and 9.2% among senior high school students. Multiple logistic regression analyses revealed that factors associated with new insomnia onset were 'sleep paralysis experience' and 'poor mental health status' in junior high school students, and 'being woken by a nightmare', 'poor mental health status', '>=2 h of extracurricular learning per day' and 'mobile phone use for >=2 h per day' in senior high school students. CONCLUSIONS: In junior and senior high school students, parasomnias such as nightmares and sleep paralysis, and mental health status can be predictors of insomnia onset. For senior high school students, longer use of mobile phones can be a predictor of insomnia onset. The present findings suggest that sleep health must be promoted among junior and senior high school students in the future. PMID- 29031755 TI - Allocating provider resources to diagnose and treat restless legs syndrome: a cost-utility analysis. AB - OBJECTIVES: Restless legs syndrome (RLS) is a neurological disorder that is frequently misdiagnosed, resulting in delays in proper treatment. The objective of this study was to analyze the cost-utility of training primary care providers (PCP) in early and accurate diagnosis of RLS. METHODS: We used a Markov model to compare two strategies: one where PCPs received training to diagnose RLS (informed care) and one where PCPs did not receive training (standard care). This analysis was conducted from the US societal and health sector perspectives over one-year, five-year, and lifetime (50-year) horizons. Costs were adjusted to 2016 USD, utilities measured as quality-adjusted life-years (QALYs), and both measures were discounted annually at 3%. Cost, utilities, and probabilities for the model were obtained through a comprehensive review of literature. An incremental cost effectiveness ratio (ICER) was calculated to interpret our findings at a willingness-to-pay threshold of $100,000/QALY. Univariate and multivariate analyses were conducted to test model uncertainty, in addition to calculating the expected value of perfect information. RESULTS: Providing training to PCPs to correctly diagnose RLS was cost-effective since it cost $2021 more and gained 0.44 QALYs per patient over the course of a lifetime, resulting in an ICER of $4593/QALY. The model was sensitive to the utility for treated and untreated RLS. The probabilistic sensitivity analysis revealed that at $100,000/QALY, informed care had a 65.5% probability of being cost-effective. CONCLUSION: A program to train PCPs to better diagnose RLS appears to be a cost-effective strategy for improving outcomes for RLS patients. PMID- 29031756 TI - Obstructive sleep apnea in pregnancy is associated with adverse maternal outcomes: a national cohort. AB - OBJECTIVE: Pregnancy and the obesity epidemic impacting women of reproductive age appear to predispose women to obstructive sleep apnea (OSA) in pregnancy. The aim of this study is to examine the association between OSA and adverse maternal outcomes in a national cohort. METHODS: The National Perinatal Information Center in the US was used to identify women with a delivery discharge diagnosis of OSA from 2010 to 2014. We used the International Classification of Diseases, ninth Revision to classify OSA diagnosis and maternal outcomes. MEASUREMENTS: The sample consisted of 1,577,632 gravidas with a rate of OSA of 0.12% (N = 1963). There was a significant association between OSA and preeclampsia (adjusted odds ratio (aOR) 2.22, 95% confidence interval (CI) 1.94-2.54), eclampsia (aOR 2.95, 1.08-8.02), and gestational diabetes (aOR 1.51, 1.34-1.72) after adjusting for a comprehensive list of covariates which includes maternal obesity. OSA status was also associated with a 2.5-3.5-fold increase in risk of severe complications such as cardiomyopathy, congestive heart failure, and hysterectomy. Length of hospital stay was significantly longer (5.1 + 5.6 vs 3.0 + 3.0 days, p < 0.001) and odds of an admission to an intensive care unit higher (aOR 2.74, 2.36-3.18) in women with OSA. CONCLUSIONS: Compared to pregnant women without OSA, pregnant women with OSA have a significantly higher risk of pregnancy-specific complications such as gestational hypertensive conditions and gestational diabetes, and rare medical and surgical complications such as cardiomyopathy, pulmonary edema, congestive heart failure, and hysterectomy. OSA diagnosis was also associated with a longer hospital stay and significantly increased odds for admission to the intensive care unit. PMID- 29031757 TI - What predicts inattention in adolescents? An experience-sampling study comparing chronotype, subjective, and objective sleep parameters. AB - OBJECTIVE: Many adolescents sleep insufficiently, which may negatively affect their functioning during the day. To improve sleep interventions, we need a better understanding of the specific sleep-related parameters that predict poor functioning. We investigated to which extent subjective and objective parameters of sleep in the preceding night (state parameters) and the trait variable chronotype predict daytime inattention as an indicator of poor functioning. METHODS: We conducted an experience-sampling study over one week with 61 adolescents (30 girls, 31 boys; mean age = 15.5 years, standard deviation = 1.1 years). Participants rated their inattention two times each day (morning, afternoon) on a smartphone. Subjective sleep parameters (feeling rested, positive affect upon awakening) were assessed each morning on the smartphone. Objective sleep parameters (total sleep time, sleep efficiency, wake after sleep onset) were assessed with a permanently worn actigraph. Chronotype was assessed with a self-rated questionnaire at baseline. We tested the effect of subjective and objective state parameters of sleep on daytime inattention, using multilevel multiple regressions. Then, we tested whether the putative effect of the trait parameter chronotype on inattention is mediated through state sleep parameters, again using multilevel regressions. RESULTS: We found that short sleep time, but no other state sleep parameter, predicted inattention to a small effect. As expected, the trait parameter chronotype also predicted inattention: morningness was associated with less inattention. However, this association was not mediated by state sleep parameters. CONCLUSIONS: Our results indicate that short sleep time causes inattention in adolescents. Extended sleep time might thus alleviate inattention to some extent. However, it cannot alleviate the effect of being an 'owl'. PMID- 29031758 TI - The association of mothers' and fathers' insomnia symptoms with school-aged children's sleep assessed by parent report and in-home sleep electroencephalography. AB - OBJECTIVE: Sleep plays an essential role for children's well-being. Because children's sleep is associated with parental sleep patterns, it must be considered in the family context. As a first aim of the present study, we test whether parental insomnia symptoms are related to children's in-home sleep electroencephalography (EEG). Second, we examine the association between parental insomnia symptoms and maternal and paternal perception of children's sleep using actor-partner interdependence models. METHODS: A total of 191 healthy children enrolled in public school and aged 7-12 years took part in the study. Ninety-six were formerly very preterm born children. Children underwent in-home sleep-EEG, and parents reported children's sleep-related behavior by using the German version of the Children's Sleep Habits Questionnaire. Further, parents completed the Insomnia Severity Index to report their own insomnia symptoms. RESULTS: Maternal but not paternal insomnia symptoms were related to less children's EEG derived total sleep time, more stage 2 sleep, less slow wave sleep, later sleep onset time, and later awakening time. Mothers' and fathers' own insomnia symptoms were related to their reports of children's bedtime resistance, sleep duration, sleep anxiety, night wakings, and/or daytime sleepiness. Moreover, maternal insomnia symptoms were associated with paternal reports of children's bedtime resistance, sleep anxiety, and sleep-disordered breathing. The associations between parental insomnia symptoms and parents' perception of children's sleep could not be explained by children's objectively measured sleep. CONCLUSIONS: Mothers' insomnia symptoms and children's objective sleep patterns are associated. Moreover, the parents' own insomnia symptoms might bias their perception of children's sleep-related behavior problems. PMID- 29031759 TI - Periodic neck myoclonus during sleep. PMID- 29031760 TI - Impact of diagnosing and treating obstructive sleep apnea on healthcare utilization. AB - PURPOSE: Obstructive sleep apnea (OSA) contributes to an increased risk for multiple co-morbidities and decreased quality of life. As a result, OSA patients may have higher usage of healthcare resources which can be mitigated with effective treatment. This study evaluates changes in healthcare utilization (HCU) following the initiation of therapy for OSA. METHODS: We conducted a retrospective study of newly diagnosed OSA patients. To assess total HCU, we incorporated the sum total of outpatient clinic encounters, laboratory tests, and medication prescriptions into a composite HCU score. Healthcare utilization for twelve months prior to positive airway pressure (PAP) was compared with twelve months after initiation of therapy. Reductions in HCU were correlated with PAP adherence. RESULTS: 650 consecutive patients were included. Mean age, gender, BMI, AHI, and ESS were 47.2 +/- 8.8 years, 77.2% (men), 30.7 +/- 4.9 kg/m2, 37.1 +/- 30.3, and 13.1 +/- 5.1, respectively. Prior to PAP, mean outpatient visits, laboratory studies, medication prescriptions, and HCU composite score were 11.6 +/- 10.4, 13.7 +/- 11.0, 4.7 +/- 3.2, and 29.7 +/- 18.6, respectively. Following initiation of treatment, a 32.8% reduction in non-sleep outpatient visits was identified (p = 0.01) and a 16.4% decrease in laboratory studies (p = 0.02) was observed. There was a 19.9% reduction (p = 0.002) in HCU composite score. Those who were adherent with PAP had a 25.7% reduction in HCU composite score versus a 4.9% increase in those who discontinued PAP therapy (p < 0.001). CONCLUSIONS: Diagnosing OSA and initiating PAP therapy resulted in a significant decrease in healthcare resource utilization. This reduction was greatest among those with higher baseline healthcare usage and those most adherent with therapy. PMID- 29031761 TI - Reduced P300 amplitude during a visuospatial attention task in idiopathic rapid eye movement sleep behavior disorder. AB - OBJECTIVES: Idiopathic rapid eye movement sleep behavior disorder (IRBD) patients are prone to cognitive deficits, which include attention, executive, and visuospatial dysfunctions. Even patients with normal cognition may exhibit subclinical electrophysiological dysfunction. This study aimed to evaluate visuospatial attention processing in IRBD patients with normal cognition and to compare their findings with those of age- and sex-matched healthy controls. METHODS: We recorded event-related potentials (ERPs) and performance measures during a variant of the Posner task in 14 IRBD patients and 14 control subjects. Behavioral data and the mean P300 amplitude were compared between groups. RESULTS: No group difference was found for reaction time or accuracy, but a significant group effect was observed for the P300 amplitude. IRBD patients had reduced P300 amplitude (MUV) than controls in both valid (IRBD: 0.53 +/- 1.05 vs Controls: 1.61 +/- 0.95; p = 0.008) and invalid (IRBD: 0.74 +/- 0.99 vs Controls: 1.73 +/- 0.86; p = 0.009) conditions. The P300 amplitude was correlated with Montreal cognitive assessment (MOCA) scores (r = 0.424, p = 0.024). CONCLUSION: Reduced P300 amplitude during the Posner task provides electrophysiological evidence for subclinical visuospatial attention deficits in cognitively normal IRBD patients. The results of this study imply that cortical dysfunction is already present in patients with IRBD in their early disease stage. PMID- 29031762 TI - Sleep and cognitive performance: cross-sectional associations in the UK Biobank. AB - OBJECTIVE: The relationship between insomnia symptoms and cognitive performance is unclear, particularly at the population level. We conducted the largest examination of this association to date through analysis of the UK Biobank, a large population-based sample of adults aged 40-69 years. We also sought to determine associations between cognitive performance and self-reported chronotype, sleep medication use and sleep duration. METHODS: This cross sectional, population-based study involved 477,529 participants, comprising 133,314 patients with frequent insomnia symptoms (age: 57.4 +/- 7.7 years; 62.1% female) and 344,215 controls without insomnia symptoms (age: 56.1 +/- 8.2 years; 52.0% female). Cognitive performance was assessed by a touchscreen test battery probing reasoning, basic reaction time, numeric memory, visual memory, and prospective memory. Adjusted models included relevant demographic, clinical, and sleep variables. RESULTS: Frequent insomnia symptoms were associated with cognitive impairment in unadjusted models; however, these effects were reversed after full adjustment, leaving those with frequent insomnia symptoms showing statistically better cognitive performance over those without. Relative to intermediate chronotype, evening chronotype was associated with superior task performance, while morning chronotype was associated with the poorest performance. Sleep medication use and both long (>9 h) and short (<7 h) sleep durations were associated with impaired performance. CONCLUSIONS: Our results suggest that after adjustment for potential confounding variables, frequent insomnia symptoms may be associated with a small statistical advantage, which is unlikely to be clinically meaningful, on simple neurocognitive tasks. Further work is required to examine the mechanistic underpinnings of an apparent evening chronotype advantage in cognitive performance and the impairment associated with morning chronotype, sleep medication use, and sleep duration extremes. PMID- 29031763 TI - Correlation between the Epworth Sleepiness Scale and the Maintenance of Wakefulness Test in patients with narcolepsy participating in two clinical trials of sodium oxybate. AB - BACKGROUND: In evaluating pathologic sleepiness, the Epworth Sleepiness Scale (ESS) assesses subjective sleep propensity; the Maintenance of Wakefulness Test (MWT) is an objective measure of the ability to stay awake. This analysis evaluated the strength of the correlation between ESS and MWT with regard to absolute values in scores. METHODS: Data were analyzed separately from the intent to-treat populations of two eight-week clinical trials of sodium oxybate for the treatment of narcolepsy, SXB-15 and SXB-22. For all treatment groups, correlations between ESS and MWT were evaluated at baseline, week four, and week eight using the Pearson product-moment correlation coefficient. RESULTS: Overall, correlations across all treatment groups in each study described an inverse relationship, reflecting the scoring of each measure (ie, whereas higher ESS scores indicate greater sleepiness, higher MWT scores indicate a greater ability to remain awake). Significant correlations of low-to-moderate strength were observed at all time points in both studies. In SXB-15, correlation coefficients were -0.272, -0.365, and -0.343 at baseline (n = 221), week four (n = 212), and week eight (n = 205), respectively, with all P < 0.0001. Similarly, in SXB-22, correlation coefficients were -0.302 (n = 216), -0.418 (n = 211), and -0.432 (n = 196) at the three time points, respectively, also with all P < 0.0001. CONCLUSION: Although all correlations showed statistical significance, they were of low-to-moderate strength. These results indicate that ESS and MWT measure features of pathologic sleepiness that may be distinct, but partially overlapping. These data corroborate those of other studies, suggesting that physiologic mechanisms that regulate alertness and sleep propensity may function somewhat independently. PMID- 29031764 TI - Combined resting state functional magnetic resonance imaging and diffusion tensor imaging study in patients with idiopathic restless legs syndrome. AB - OBJECTIVE: Restless legs syndrome (RLS) is a common neurological disorder characterized by an urge to move the legs along with paraesthesia deep within them. In this study, we aimed to use diffusion tensor imaging (DTI) and regional homogeneity (ReHo) to investigate the changes in regional spontaneous brain activity change for RLS patients against age- and gender-matched normal control (NC) subjects. METHODS: A total of 35 RLS patients and 27 age- and gender-matched NC subjects were recruited for group comparison research that used DTI and ReHo techniques. DTI was analysed by FSL and tract-based spatial statistics (TBSS) software to measure the values of fractional anisotropy (FA) or mean diffusivity (MD) in brain regions. Statistical Parametric Mapping 8 (SPM8) was used for data preprocessing and Data Processing Assistant for Resting-State fMRI (DPARSF) toolbox was used for ReHo calculation. For multiple comparison correction, the AlphaSim program implemented in AFNI was used to control the false-positive rate (corrected p < 0.05). RESULTS: There was no significant difference between the iRLS and NC groups in age or gender. In the one-sample t-test, both the NC and RSL groups showed increased ReHo in the bilateral posterior cingulate/precuneus cortex compared to the groups' global means, indicating that the default mode network was at rest. The RLS group showed a smaller cluster size than the NC group. In the two-sample t-test, the RLS group showed increased ReHo in the bilateral middle frontal gyrus, anterior cingulate cortex, caudate nucleus, insula, thalamus, putamen and left posterior cingulate cortex compared to the NC group. The statistical analysis of DTI images did not show any difference between the two groups. TBSS group comparison did not reveal any difference in FA or mean diffusivity (MD) of any brain region. CONCLUSION: RLS patients showed that greater ReHo within the striatum, thalamus and the limbic system, which implies that the emotional processing, motion control and cognition in the cortico striatal-thalamic-cortical (CSTC) loop may be the site of dysfunction in RLS patients. This finding may provide imaging evidence to explore the pathophysiology of RLS. On the other hand, we did not see any change in the microstructure in the DTI analysis for RLS patients when compared to the NC group, which suggests a metabolic impairment. PMID- 29031766 TI - Disulfide bond formation protects Arabidopsis thaliana glutathione transferase tau 23 from oxidative damage. AB - BACKGROUND: Glutathione transferases play an important role as detoxifying enzymes. In A. thaliana, elevated levels of reactive oxygen species (ROS), provoked during biotic and abiotic stress, influence the activity of GSTU23. The aim of this study is to determine the impact of oxidative stress on the function and structure of GSTU23. METHODS: The impact of oxidation on the function of GSTU23 was studied using a glutathione transferase biochemical assay and mass spectrometry. With kinetics, circular dichroism and thermodynamics, we compared reduced with oxidized GSTU23. X-ray crystal structures of GSTU23 visualize the impact of oxidation on methionines and cysteines. RESULTS: In the presence of 100MUM H2O2, oxidation of the methionine side-chain to a sulfoxide is the prominent post-translational modification, which can be reduced by C. diphtheriae MsrA and MsrB. However, increasing the level to 200MUM H2O2 results in a reversible intramolecular disulfide between Cys65-Cys110, which is substrate for glutaredoxin. Under these oxidizing conditions, GSTU23 undergoes a structural change and forms a more favourable enzyme-substrate complex to overcome kcat decrease. CONCLUSIONS AND SIGNIFICANCE: At lower H2O2 levels (100MUM), GSTU23 forms methionine sulfoxides. Specifically, oxidation of Met14, located near the catalytic Ser13, could interfere with both GSH binding and catalytic activation. At higher H2O2 levels (200MUM), the Cys65-Cys110 disulfide bond protects other cysteines and also methionines from overoxidation. This study shows the impact of oxidative stress on GSTU23 regulated by methionine sulfoxide reductases and glutaredoxin, and the mechanisms involved in maintaining its catalytic functionality under oxidizing conditions. PMID- 29031767 TI - Cycling, and Male Sexual and Urinary Function: Results from a Large, Multinational, Cross-Sectional Study. AB - PURPOSE: We explored the relation of cycling to urinary and sexual function in a large multinational sample of men. MATERIALS AND METHODS: Cyclists were recruited to complete a survey through Facebook(r) advertisements and outreach to sporting clubs. Swimmers and runners were recruited as a comparison group. Cyclists were categorized into low and high intensity cyclists. Participants were queried using validated questionnaires, including SHIM (Sexual Health Inventory for Men), I-PSS (International Prostate Symptom Score) and NIH-CPSI (National Institutes of Health Chronic Prostatitis Symptom Index), in addition to questions about urinary tract infections, urethral stricture, genital numbness and saddle sores. RESULTS: Of 5,488 complete survey responses 3,932 (72%) were included in our analysis. On multivariate analysis swimmers/runners had a lower mean SHIM score than low and high intensity cyclists (19.5 vs 19.9 and 20.7, p = 0.02 and <0.001, respectively). No significant differences were found in I-PSS or NIH-CPSI scores, or urinary tract infection history. Cyclists had statistically higher odds of urethral stricture compared to swimmers/runners (OR 2.5, p = 0.042). Standing more than 20% of the time while cycling significantly reduced the odds of genital numbness (OR 0.4, p = 0.006). Adjusting the handlebar higher or even with the saddle had lower odds of genital numbness and saddle sores (OR 0.8, p = 0.005 and 0.6, p <0.001, respectively). CONCLUSIONS: Cyclists had no worse sexual or urinary functions than swimmers or runners but cyclists were more prone to urethral stricture. Increased time standing while cycling and a higher handlebar height were associated with lower odds of genital sores and numbness. PMID- 29031765 TI - An increased autophagic flux contributes to the anti-inflammatory potential of urolithin A in macrophages. AB - BACKGROUND: An extract of Phyllanthus muellerianus and its constituent geraniin have been reported to exert anti-inflammatory activity in vivo. However, orally consumed geraniin, an ellagitannin, shows low bioavailability and undergoes metabolization to urolithins by gut microbiota. This study aimed at comparing geraniin and urolithin A with respect to inhibition of M1 (LPS) polarization of murine J774.1 macrophages and shedding more light on possible underlying mechanisms. METHODS: Photometric, fluorimetric as well as luminescence-based assays monitored production of reactive oxygen species (ROS) and nitric oxide (NO), cell viability or reporter gene expression. Western blot analyses and confocal microscopy showed abundance and localization of target proteins, respectively. RESULTS: Urolithin A is a stronger inhibitor of M1 (LPS) macrophage polarization (production of NO, ROS and pro-inflammatory proteins) than geraniin. Urolithin A leads to an elevated autophagic flux in macrophages. Inhibition of autophagy in M1 (LPS) macrophages overcomes the suppressed nuclear translocation of p65 (NF-kB; nuclear factor kB), the reduced expression of pro-inflammatory genes as well as the diminished NO production brought about by urolithin A. The increased autophagic flux is furthermore associated with impaired Akt/mTOR (mammalian target of rapamycin) signaling in urolithin A-treated macrophages. CONCLUSIONS AND GENERAL SIGNIFICANCE: Intestinal metabolization may boost the potential health benefit of widely consumed dietary ellagitannins, as suggested by side by side comparison of geraniin and urolithin A in M1(LPS) macrophages. Increased activity of the autophagic cellular recycling machinery aids the anti inflammatory bioactivity of urolithin A. PMID- 29031768 TI - A Double-Blind, Randomized Trial on the Efficacy and Safety of Hyperbaric Oxygenation Therapy in the Preservation of Erectile Function after Radical Prostatectomy. AB - PURPOSE: We evaluated the efficacy and safety of hyperbaric oxygenation therapy to preserve erectile function as part of penile rehabilitation after robot assisted bilateral nerve sparing radical prostatectomy for prostate cancer. MATERIALS AND METHODS: We performed a prospective, randomized, double-blind study from January 2009 to April 2013. Men 40 to 65 years old who underwent robot assisted bilateral nerve sparing radical prostatectomy were randomized 1:1 to the control or the treatment group. Participants were exposed to air as the control or to 100% oxygen as the treatment in hyperbaric conditions. The primary outcome was erectile function at 18 months as measured by IIEF (International Index of Erectile Function). Secondary outcomes were 12-month urinary symptoms, and 18 month sexual, urinary, bowel and hormonal related symptoms as measured by EPIC-26 (Expanded Prostate Index Composite-26). Adverse events and long-term cancer outcomes were monitored. Primary and secondary outcomes in the 2 groups were compared by the independent group t-test, the Wilcoxon rank sum test and the chi square test of proportion. RESULTS: A total of 109 potent men were randomized to hyperbaric oxygenation therapy or the control group. A total of 43 men in the air group and 40 in the hyperbaric oxygenation therapy group completed the 18-month followup. No statistically significant differences were observed between the 2 groups on any outcome measure. CONCLUSIONS: This study revealed no difference in erectile recovery in men treated with hyperbaric oxygenation therapy vs placebo. Larger studies involving more diverse comorbidities and different hyperbaric oxygenation therapy regimens are needed to better evaluate the usefulness of hyperbaric oxygenation therapy for penile rehabilitation after radical prostatectomy. PMID- 29031769 TI - Intratrigonal OnabotulinumtoxinA Improves Bladder Symptoms and Quality of Life in Patients with Bladder Pain Syndrome/Interstitial Cystitis: A Pilot, Single Center, Randomized, Double-Blind, Placebo Controlled Trial. AB - PURPOSE: We compared the efficacy and safety of trigonal injections of onabotulinumtoxinA and saline in patients with bladder pain syndrome/interstitial cystitis. MATERIALS AND METHODS: This phase II study enrolled women who had had bladder pain syndrome/interstitial cystitis for more than 6 months and pain for 4 months or longer on a visual analogue scale of 0 to 10, which were refractory to common treatment. OnabotulinumtoxinA 100 U in 10 or saline as placebo in 9 was administered as 10 trigonal injections of 1 ml. The primary study end point was the change from baseline pain intensity reported at week 12. Additional end points included O'Leary-Sant scores, micturition frequency, quality of life at week 4, 8 and 12, and the treatment benefit scale at week 12. Safety assessments included urinary tract infection, post-void residual urine and the initiation of clean intermittent catheterization. RESULTS: At week 12 onabotulinumtoxinA had significantly reduced pain compared with saline (mean +/- SD -3.8 +/- 2.5 vs -1.6 +/- 2.1, p <0.05). The proportion of patients who achieved a 50% or greater reduction in the pain visual analog scale was 60% for onabotulinumtoxinA vs 22% for placebo. OnabotulinumtoxinA significantly improved O'Leary-Sant scores and quality of life over placebo at weeks 4, 8 and 12. Important numerical reductions in voiding frequency were also observed with the toxin. OnabotulinumtoxinA was well tolerated. Urinary tract infections developed in 3 patients who received onabotulinumtoxinA vs 2 who received saline. Mean post-void residual urine at week 12 was 5 +/- 13 ml for onabotulinumtoxinA vs 0 ml with saline. This study had the limitations inherent to a single center trial with a small number of patients enrolled. CONCLUSIONS: OnabotulinumtoxinA 100 U caused significant and clinically relevant improvements in bladder pain and quality of life in patients with bladder pain syndrome/interstitial cystitis refractory to common therapy. It was also well tolerated. PMID- 29031770 TI - Effects of three major amino acids found in Japanese broth on glucose metabolism and gastric emptying. AB - OBJECTIVES: To our knowledge, the effect of the broth of dried kelp and dried bonito, dashi, on glucose metabolism and digestion has rarely been studied. Based on the component analysis of three actual broths served in traditional restaurants, a chemically synthesized broth with three free amino acids (histidine, glutamate, aspartate) and salt was prepared to investigate their effect on glucose metabolism, glucose-dependent insulinotropic polypeptide (GIP), and glucagon-like peptide 1 (GLP-1) secretion, and digestion. METHODS: In study 1, seven healthy individuals were enrolled in a four-period crossover study. Participants drank or ate hot water, synthesized broth, hot water with rice, and synthesized broth with rice. Plasma glucose, serum insulin, plasma glucagon, plasma GIP, and plasma GLP-1 were measured at baseline and after ingestion. In study 2, 6 of the 7 individuals ingested rice steamed with 13C-labeled sodium acetate with hot water or synthesized broth to estimate gastric emptying by the 13C-labeled acetate breath test in a two-period crossover trial. RESULTS: Ingesting water or synthesized broth alone elicited no change in plasma glucose or serum insulin levels. Ingesting synthesized broth with rice resulted in a rapid rise in plasma glucose and GLP-1 (P = 0.01 and 0.02, respectively) in an early postprandial phase compared with that by ingesting water with rice, but the area under the curve of those showed no significant differences. Ingesting synthesized broth with rice resulted in a significantly higher gastric emptying coefficient than that after rice with water (P = 0.03). CONCLUSIONS: Three amino acids and sodium chloride corresponding to those found in actual broth promoted gastric emptying and led to a rapid response of plasma glucose. Our findings suggest that ingestion of the broth of dried kelp and dried bonito may improve gastric motility. PMID- 29031771 TI - A nonrandomized controlled clinical pilot trial on 8 wk of intermittent fasting (24 h/wk). AB - OBJECTIVE: The aim of the study was to evaluate whether intermittent fasting (IF) is an effective preventive measure, and whether it is feasible for healthy volunteers under every day conditions. METHODS: A nonrandomized controlled clinical trial on IF was performed with healthy volunteers over a period of 8 wk, and a subsequent 4-mo follow-up. Outcomes were assessed at baseline, after 8 wk, and after 6 mo. Volunteers who were not interested in fasting served as a control group. Participants in the fasting group were asked to continue their regular nutritional habits on the nonfasting days, whereas the control group maintained their habitual nutrition throughout the whole period. Outcomes included changes of metabolic parameters (insulin, glucose, insulin resistance, insulin-like growth factor-1, brain-derived neurotropic factor, lipids, liver enzymes, hemoglobin A1c) and coagulation markers; bioelectrical impedance analysis; body mass index; abdominal girth; blood pressure; general quality of life (five-item World Health Organization Well-Being Index [WHO-5] questionnaire), as well as mood and anxiety (Hospital Anxiety and Depression Scale [HADS], Profile of Mood States, Flourishing-Scale, visual analog scale, Likert scales). The intervention consisted of a fasting day, which was repeated every week for 8 wk, with abstinence from solid food between 00:00 and 23:59 at minimum and a maximum caloric intake of 300 kcal on each fasting day. A per-protocol analysis was performed. P < 0.05 was considered significant. RESULTS: Thirty-six volunteers were included; 22 allocated themselves to the fasting group, and 14 to the control group. Thirty-three data sets were included in the final analysis. Although significant in-group changes were observed in both groups for a number of outcomes after 8 wk and 6 mo, no significant between-group differences were observed for any outcome other than overall body fat mass after 8 wk as well as for the HADS total score and the WHO-5 total score after 6 mo, all in favor of the fasting group. However, none of the between-group differences were clinically relevant. CONCLUSIONS: We did not find any clinically relevant differences between groups in this controlled clinical pilot trial of 8 wk of IF in healthy volunteers. Further clinical research in this field is warranted to further analyze mechanisms and effects of IF. PMID- 29031772 TI - Identification and comparative profiling of ovarian and testicular microRNAs in the swimming crab Portunus trituberculatus. AB - MicroRNAs (miRNAs) are a class of endogenous non-coding small RNA, known as key post-transcriptional regulators for development and function of reproductive organ in animals. However, limited information is currently available on the regulatory roles of miRNAs in crustacean reproduction. In the present study, we performed small RNA deep sequencing in ovary and testis tissues of the swimming crab Portunus trituberculatus, which is a commercially important species in East Asian countries, to identify and characterize the miRNAs in gonads. We obtained 187 and 225 miRNAs from ovary and testis, respectively, including 188 known and 65 novel miRNAs. Expression profiling of the identified miRNAs indicated that ovary and testis shared the same six most abundant miRNAs (let-7, let-7c, let-7f, mir-2, mir-184 and mir-276), which accounted for a large proportion of total reads in gonads (35.78% for ovary and 37.01% for testis) and indicated that they may play essential roles in gonadal development and function. Statistically, 75 miRNAs showed differential expression level between ovary and testis tissues, and the putative target genes of these miRNAs were significantly enriched in 14 KEGG pathways, including several pathways important in reproduction, such as GnRH signaling pathway, Wnt signaling pathway, ovarian steroidogenesis and TGF-beta signaling pathway. Further analysis found that the differentially expressed miRNAs exhibited stage-specific expression during ovarian and testicular development, suggesting their potential roles in reproductive development. Our study provided the first insight into regulatory roles of gonadal miRNAs and would serve as a valuable resource for investigating miRNA-mediated mechanisms of reproduction regulation in P. trituberculatus and other crustaceans. PMID- 29031773 TI - Identification of CDAN1, C15ORF41 and SEC23B mutations in Chinese patients affected by congenital dyserythropoietic anemia. AB - Congenital dyserythropoietic anaemias (CDAs) are a group of rare haematological disorders characterized by ineffective erythropoiesis and dyserythropoiesis and reduced numbers of red cells, often with an abnormal morphology. Pathogenic defects in CDAN1, C15ORF41, SEC23B, KIF23, KLF1 and GATA1 genes have been identified in CDAs patients. In this study, we described 13 unrelated Chinese CDAs patients and identified 21 mutations, including 5 novel mutations in CDAN1 gene, and 5 novel mutations in SEC23B gene. Additionally, we predicted the molecular consequence of these missense mutations with Polymorphism Phenotyping v2 (Polyphen), Sorting Intolerant From Tolerant (SIFT), MutPred (http://mutpred1.mutdb.org/) and Protein Variation Effect Analyzer (Provean, http://provean.jcvi.org/seq_submit.php) and analyzed the conservation of the mutated amino acid among proteins from several mammalian species. PMID- 29031774 TI - The evolution of apolipoprotein B and its mRNA editing complex. Does the lack of editing contribute to hypertriglyceridemia? AB - The evolution of apolipoprotein B (Apob) has been intensely researched due to its importance during lipid transport. Mammalian full-length apob100 can be post transcriptionally edited by the enzyme apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like complex-one (Apobec1) resulting in a truncated Apob, known as Apob48. Whilst both full-length and truncated forms of Apob are important for normal lipid homeostasis in mammals, there is no evidence for the presence of apob mRNA editing prior to the divergence of the mammals, yet, non mammalian vertebrates appear to function normally with only Apob100. To date, the majority of the research carried out in non-mammalian vertebrates has focused on chickens with only a very limited number examining apob mRNA editing in fish. This study focused on the molecular evolution of Apobec1 and Apob in order to ascertain if apob mRNA editing occurs in eels, a basal teleost which represents an evolutionarily important animal group. No evidence for the presence of Apobec1 or the ability for eel apob to be edited was found. However, an important link between mutant mice and the evident hypertriglyceridemia in the plasma of non mammalian vertebrates was made. This study has provided imperative evidence to help bridge the evolutionary gap between fish and mammals and provides further support for the lack of apob mRNA editing in non-mammalian vertebrates. PMID- 29031775 TI - Analysis of the meiotic transcriptome reveals the genes related to the regulation of pollen abortion in cytoplasmic male-sterile pepper (Capsicum annuum L.). AB - CMS, which refers to the inability to generate functional pollen grains while still producing a normal gynoecium, has been widely used for pepper hybrid seed production. Pepper line 8214A is an excellent CMS line exhibiting 100% male sterility and superior economic characteristics. A TUNEL assay revealed the nuclear DNA is damaged in 8214A PMCs during meiosis. TEM images indicated that the 8214A PMCs exhibited asynchronous meiosis after prophase I, and some PMCs degraded prematurely with morphological features typical of PCD. Additionally, at the end of meiosis, the 8214A PMCs formed abnormal non-tetrahedral tetrads that degraded in situ. To identify the genes involved in the pollen abortion of line 8214A, the transcriptional profiles of the 8214A and the 8214B anthers (i.e., from the fertile maintainer line) during meiosis were analyzed using an RNA-seq approach. A total of 1355 genes were determined to be differentially expressed, including 424 and 931 up- and down- regulated genes, respectively, in the 8214A anthers during meiosis relative to the expression levels in the 8214B. The expression levels of ubiquitin ligase and cell cycle-related genes were apparently down-regulated, while the expression of methyltransferase genes was up regulated in the 8214A anthers during meiosis, which likely contributed to the PCD of these PMCs during meiosis. Thus, our results may be useful for revealing the molecular mechanism regulating the pollen abortion of CMS pepper. PMID- 29031776 TI - The HACD4 haplotype as a risk factor for atherosclerosis in males. AB - The 9p21.3 region is rich in regulatory elements and the variants in this region had been robustly associated with carotid plaque (CP) and coronary artery disease (CAD). Recently, the HACD4 was detected as one of the six 9p21.3 differentially expressed genes associated with accelerated atherosclerosis and greater mean lesion area in the Athsq1 congenic mice. We aimed to investigate association of two potentially regulatory HACD4 variants (rs36212560 I/D, rs2275888 T/C) and their haplotypes with CP occurrence and the level of HACD4 and FOCAD mRNA in human CP tissue. Association study was replicated in CAD patients who suffered the first myocardial infarction. Study included 477 CP patients, 303 healthy controls and replication sample of 224 CAD males from the population of Serbia. Genotypes were determined by polymerase chain reaction (PCR) and real-time PCR using TaqMan(r) technology. The gene expression was detected with TaqMan(r) technology. We have found significant and independent association of DT haplotype with CP presence in men (adjusted OR=1.64 CI=1.12-2.42, p=0.011). The result was replicated in CAD males (adjusted OR=1.84 CI=1.21-2.80, p=0.004). We have found significant effect of the HACD4 rs2275888 on FOCAD mRNA level in human CP tissue. Correction for multiple testing was performed. Independent association of HACD4 haplotypes with atherosclerotic phenotypes connotes a further validation and replication in larger cohorts as well as functional studies to enlighten the potential mechanism of its action in pathophysiology of atherosclerosis. PMID- 29031777 TI - New applications of CRISPR/Cas9 system on mutant DNA detection. AB - The detection of mutant DNA is critical for precision medicine, but low-frequency DNA mutation is very hard to be determined. CRISPR/Cas9 is a robust tool for in vivo gene editing, and shows the potential for precise in vitro DNA cleavage. Here we developed a DNA mutation detection system based on CRISPR/Cas9 that can detect gene mutation efficiently even in a low-frequency condition. The system of CRISPR/Cas9 cleavage in vitro showed a high accuracy similar to traditional T7 endonuclease I (T7E1) assay in estimating mutant DNA proportion in the condition of normal frequency. The technology was further used for low-frequency mutant DNA detection of EGFR and HBB somatic mutations. To the end, Cas9 was employed to cleave the wild-type (WT) DNA and to enrich the mutant DNA. Using amplified fragment length polymorphism analysis (AFLPA) and Sanger sequencing, we assessed the sensitivity of CRISPR/Cas9 cleavage-based PCR, in which mutations at 1%-10% could be enriched and detected. When combined with blocker PCR, its sensitivity reached up to 0.1%. Our results suggested that this new application of CRISPR/Cas9 system is a robust and potential method for heterogeneous specimens in the clinical diagnosis and treatment management. PMID- 29031779 TI - Extended adjuvant therapy: the role of subset analyses. PMID- 29031780 TI - Towards plasma-like collisionless trajectories in the brain. AB - Plasma studies depict collisionless, collective movements of charged particles. In touch with these concepts, originally developed by the far-flung branch of high energy physics, here we evaluate the role of collective behaviors and long range functional couplingsof charged particlesin brain dynamics. We build a novel, empirically testable, brain model which takes into account collisionless movements of charged particles in a system, the brain, equipped with oscillations. The model is cast in a mathematical fashion with the potential of being operationalized, because it can be assessed in terms of McKean-Vlasov equations, derived from the classical Vlasov equations for plasma. A plasma-like brain also elucidates cortical phase transitions in the context of a brain at the edge of chaos, describing the required order parameters. In sum, showing how the brain might exhibit plasma-like features,we go through the concept of holistic behavior of nervous functions. PMID- 29031778 TI - Extended adjuvant aromatase inhibition after sequential endocrine therapy (DATA): a randomised, phase 3 trial. AB - BACKGROUND: The effect of extended adjuvant aromatase inhibition in hormone receptor-positive breast cancer after sequential endocrine therapy of tamoxifen followed by an aromatase inhibitor for a 5-year treatment period still needs clarification. To address this issue, we began the DATA study to assess different durations of anastrozole therapy after tamoxifen. METHODS: DATA was a prospective, randomised, open-label, multicentre, phase 3 study done in 79 hospitals in the Netherlands. We randomly assigned postmenopausal women with hormone receptor-positive early breast cancer with no signs of disease recurrence after 2-3 years of adjuvant tamoxifen to either 3 or 6 years of anastrozole treatment (1 mg orally once a day) in a 1:1 ratio. We used TENALEA (Trans European Network for Clinical Trials Services) for the randomisation procedure. Stratification factors were nodal status, hormone receptor status, HER2 status, and tamoxifen treatment duration. The primary study endpoint of this analysis was disease-free survival starting beyond 3 years after randomisation (adapted disease-free survival). Here we report the final analysis from the DATA trial, which is registered with ClinicalTrials.gov, number NCT00301457. FINDINGS: Between June 28, 2006, and Aug 10, 2009, we screened 1912 patients of whom 955 were assigned to the 3-year group and 957 to the 6-year anastrozole treatment group. 1860 patients were eligible (931 in the 6-year group and 929 in the 3-year group) and 1660 were disease free 3 years after randomisation. The 5-year adapted disease-free survival was 83.1% (95% CI 80.0-86.3) in the 6-year group and 79.4% (76.1-82.8) in the 3-year group (hazard ratio [HR] 0.79 [95% CI 0.62-1.02]; p=0.066). Patients in the 6-year treatment group had more adverse events than those in the 3-year treatment group, including all-grade arthralgia or myalgia (478 [58%] of 827 in the 6-year treatment group vs 438 [53%] of 833 in the 3-year treatment group) and osteopenia or osteoporosis (173 [21%] vs 137 [16%]). INTERPRETATION: We cannot recommend the use of extended adjuvant aromatase inhibition after 5 years of sequential endocrine therapy in all postmenopausal women with hormone receptor-positive breast cancer. FUNDING: AstraZeneca. PMID- 29031781 TI - The effectiveness of istradefylline for the treatment of gait deficits and sleepiness in patients with Parkinson's disease. AB - PURPOSE: Istradefylline is useful in treating the wearing-off state in Parkinson's disease (PD). We investigated the effectiveness of istradefylline (ISD) in improving arousal, sleep, and gait deficits in patients with PD. METHODS: We examined 14 patients with PD treated with ISD. We assessed the patients using the Unified Parkinson's Disease Rating Scale, Parkinson's Disease Questionnaire, Timed Up-and-Go test (TUG), Freezing of Gait Questionnaire (FOG Q), Epworth Sleepiness Scale (ESS), and Parkinson's Disease Sleep Scale (PDSS) before and 1 month after ISD use. RESULTS: ESS scores were significantly lower 1 month after the start of ISD treatment (6.79+/-6.50) than before the intervention (8.14+/-6.15, Wilcoxon signed-rank test, p=0.0033). PDSS scores were not significantly different 1 month after beginning the treatment (112+/-23mm) when compared to those before the intervention (110+/-27mm, Wilcoxon signed-rank test, p=0.40). TUG scores were not changed after 1 month of ISD use (14.9+/-8.3s) when compared to those before the intervention (21.3+/-30.0s, Wilcoxon signed-rank test, p=0.59). Although these measures were not significantly affected by ISD treatment, some patients remarkably improved after the treatment. FOG-Q scores were significantly lower 1 month after the beginning of treatment (9.79+/-7.16) than those before the intervention (12.14+/-5.82, Wilcoxon signed-rank test, p=0.030). CONCLUSIONS: ISD may improve daytime sleepiness and FOG in patients with PD. PMID- 29031782 TI - Editorial. PMID- 29031783 TI - Antidiabetic effect of Achillea millefollium through multitarget interactions: alpha-glucosidases inhibition, insulin sensitization and insulin secretagogue activities. AB - ETHNOPHARMACOLOGICAL IMPORTANCE: Achillea millefolium L. (Asteraceae) is a perennial herb used in Mexican folk medicine for treatment of several pathologies, including inflammatory and spasmodic gastrointestinal disorders, hepatobiliary complaints, overactive cardiovascular, respiratory ailments and diabetes. AIM OF THE STUDY: To evaluate the potential antidiabetic effect in vivo and to establish the potential mode of action through in vitro approaches of Achillea millefolium. MATERIALS AND METHODS: The antidiabetic effect of hydroalcoholic extract of Achillea millefolium (HAEAm) was evaluated on the oral glucose tolerance tests, in normoglycemic and experimental Type 2 diabetic mice models. In addition, we evaluated the possible mode of action in in vitro assays to determine alpha-glucosidases inhibition, the insulin secretion and calcium mobilization in RINm5F cells and PPARgamma and GLUT4 expression in 3T3-L1 cells. RESULTS: HAEAm showed significant glucose diminution on oral glucose tolerance test and in acute experimental Type 2 diabetic assay with respect to the control (p < 0.05). In addition, HAEAm promoted the alpha-glucosidases inhibition by 55% at 1mg/ml respect to control. On the other hand, HAEAm increased the PPARgamma (five-times) and GLUT4 (two-fold) relative expression than control (p < 0.05). Finally, HAEAm significantly increased the insulin secretion and [Ca2+]i compared with control. CONCLUSION: The HAEAm possesses in vivo antidiabetic effect, having such effect through multitarget modes of action that involve antihyperglycemic (alpha-glucosidases inhibition), hypoglycemic (insulin secretion) and potential insulin sensitizer (PPARgamma/GLUT4 overexpression) actions. PMID- 29031784 TI - Isobaric tags for relative and absolute quantitation (iTRAQ)-based proteomics for the investigation of the effect of Hugan Qingzhi on non-alcoholic fatty liver disease in rats. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Hugan Qingzhi tablet (HQT), a traditional Chinese medicine formula has been adopted for preventing and treating nonalcoholic fatty liver disease (NAFLD). AIM: In order to explore the anti-NAFLD mechanisms of HQT, iTRAQ-based proteomic was employed to investigate the expression profiles of proteins in NAFLD rats induced by high-fat diet after HQT treatment. MATERIALS AND METHODS: The NAFLD rat model was administrated with high-fat diet (HFD) for 12weeks. HQT was administrated in a daily basis to the HFD groups. Biochemical markers, liver histology, pro-inflammatory cytokines, and oxidative stress/antioxidant biomarkers were assayed to evaluate HQT effects in HFD-induced NAFLD rats. Furthermore, the combined strategy of iTRAQ labeling with strong cation exchange-non-liquid chromatography-tandem mass spectrometry (SCX-non-LC MS/MS) analysis were employed to explore the mechanisms of HQT's protective effect against NAFLD in rats. Western blotting was performed to verify the proteomic results. RESULTS: The histopathologic characteristics and biochemical data showed that HQT exhibited protective effects on HFD-induced NAFLD rats. After being analyzed by the combined strategy of iTRAQ with LC-MS/MS and subsequent investigation, we identified 275 differentially expressed proteins in the HFD group, compared to the control; 207 altered proteins in the HQT high dose + HFD group, compared to the HFD group; and 316 altered proteins in the HQT high dose + HFD group, compared to the control. Based on the Kyoto Encyclopedia of Gene and Genomes (KEGG) pathway mapping, the conclusion has reached that several pathways including microbial metabolism in diverse environments, fatty acid metabolism, inflammatory response, oxidative stress, bile secretion, and peroxisome proliferator activated receptor (PPAR) signaling pathway were closely related to the effects of HQT in HFD-induced NAFLD in rats. Furthermore, several differentially expressed proteins, including phytanoyl-CoA 2-hydroxylase (PHYH), acyl-CoA synthetase 1 long chain (ACSL1), hemopexin, Alpha-1-acid glycoprotein (ORM1), fatty acid binding protein 4 (FABP4), soluble sulphotransferase 2a1 (Sult2a1), and argininosuccinate synthase 1 (ASS1) were verified by the western blotting analysis and these results were consistent with the data obtained from the proteomics analysis. CONCLUSIONS: Our results not only confirm that Hugan Qingzhi exhibits a significant protective effect in HFD-induced NAFLD rats but also provide a better understanding for the treatments of NAFLD. PMID- 29031785 TI - Previous Mental Disorders and Subsequent Onset of Chronic Back or Neck Pain: Findings From 19 Countries. AB - : Associations between depression/anxiety and pain are well established, but its directionality is not clear. We examined the associations between temporally previous mental disorders and subsequent self-reported chronic back/neck pain onset, and investigated the variation in the strength of associations according to timing of events during the life course, and according to gender. Data were from population-based household surveys conducted in 19 countries (N = 52,095). Lifetime prevalence and age of onset of 16 mental disorders according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, and the occurrence and age of onset of back/neck pain were assessed using the Composite International Diagnostic Interview. Survival analyses estimated the associations between first onset of mental disorders and subsequent back/neck pain onset. All mental disorders were positively associated with back/neck pain in bivariate analyses; most (12 of 16) remained so after adjusting for psychiatric comorbidity, with a clear dose-response relationship between number of mental disorders and subsequent pain. Early-onset disorders were stronger predictors of pain; when adjusting for psychiatric comorbidity, this remained the case for depression/dysthymia. No gender differences were observed. In conclusion, individuals with mental disorder, beyond depression and anxiety, are at higher risk of developing subsequent back/neck pain, stressing the importance of early detection of mental disorders, and highlight the need of assessing back/neck pain in mental health clinical settings. PERSPECTIVE: Previous mental disorders according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition are positively associated with subsequent back/neck pain onset, with a clear dose-response relationship between number of mental disorders and subsequent pain. Earlier-onset mental disorders are stronger predictors of subsequent pain onset, compared with later-onset disorders. PMID- 29031786 TI - Differentiation and Protective Capacity of Virus-Specific CD8+ T Cells Suggest Murine Norovirus Persistence in an Immune-Privileged Enteric Niche. AB - Noroviruses can establish chronic infections with active viral shedding in healthy humans but whether persistence is associated with adaptive immune dysfunction is unknown. We used genetically engineered strains of mouse norovirus (MNV) to investigate CD8+ T cell differentiation during chronic infection. We found that chronic infection drove MNV-specific tissue-resident memory (Trm) CD8+ T cells to a differentiation state resembling inflationary effector responses against latent cytomegalovirus with only limited evidence of exhaustion. These MNV-specific Trm cells remained highly functional yet appeared ignorant of ongoing viral replication. Pre-existing MNV-specific Trm cells provided partial protection against chronic infection but largely ceased to detect virus within 72 hours of challenge, demonstrating rapid sequestration of viral replication away from T cells. Our studies revealed a strategy of immune evasion by MNV via the induction of a CD8+ T cell program normally reserved for latent pathogens and persistence in an immune-privileged enteric niche. PMID- 29031787 TI - Assessing prediction accuracy for outcomes of ventilator-associated events and infections in critically ill children: a prospective cohort study. AB - OBJECTIVES: To assess the prediction accuracy of the 2008 US Centers for Disease Control and Prevention (CDC) definitions for ventilator-associated pneumonia (VAP)/ventilator-associated tracheobronchitis (VAT), 2013 CDC definitions for ventilator-associated events (VAE) and a new VAE algorithm in the paediatric (Ped) population, the Ped-VAE. METHODS: We performed a prospective 13-month cohort study at a multidisciplinary paediatric intensive care unit (PICU). Primary endpoints were duration of ventilation episode, PICU or hospitalization length of stay from episode and episode mortality. Episodes without VAE (or VAP/VAT) served as comparison groups. RESULTS: One hundred eight episodes of ventilation (99 children) with 2554 ventilator-days were assessed. In episodes not meeting 2008 CDC definitions, a median of 6 ventilator-days (PICU stay 11 days) was documented (with eight deaths), not significantly different from episodes not meeting VAE or Ped-VAE definitions. Using 2008 CDC criteria, 11 (10.2%) respiratory infections (eight tracheobronchitis) were identified, seven VAEs using 2013 CDC criteria (6.4%) and 29 (26.8%) using Ped-VAE criteria (relative risk vs. 2008 CDC criteria 2.58; 95% confidence interval 1.36-4.91). In contrast with their comparison groups, episodes meeting 2008 CDC criteria did not significantly predict outcomes, whereas VAEs (only four possible VAPs) were associated with significantly more ventilation and PICU length of stay (12-day/8 day increase) and sevenfold increase in mortality. Ped-VAE did not increase mortality, but it was associated with 4-day increase in ventilation and PICU length of stay, with ten possible VAPs, and atelectasis (9/12) as the main paediatric ventilator-associated condition. CONCLUSIONS: The 2008 CDC criteria did not predict outcomes, whereas VAE only identified very severe events. The Ped VAE algorithm had more accuracy predicting outcomes by characterizing lower oxygenation changes and identifying hypoxaemia severity, a major driver of management. PMID- 29031788 TI - Susceptibility testing of Kingella kingae to cefazolin. PMID- 29031790 TI - What are "Purkinje" cells? And do they have a role in the genesis of atrial fibrillation? PMID- 29031789 TI - Trends and differences in tuberculosis incidences and clustering among natives in Denmark, Sweden and Finland: comparison of native incidences and molecular epidemiology among three low-incidence countries. AB - OBJECTIVES: To compare the epidemiology of tuberculosis (TB) in Denmark, Sweden and Finland, by focusing on the native population in order to identify epidemiologic differences and thus indirectly possible differences in TB control. METHODS: TB incidence trends from 1990 through 2015 were compared among the countries. In addition, for the periods 2012-2013 and 2014-2015, genotyping data were compared. Genotyping was performed using the 24-locus mycobacterial interspersed repetitive unit-variable number of tandem repeat (MIRU-VNTR) method in Denmark and Sweden. For Finland, spoligotyping in conjunction with the 15 locus MIRU-VNTR method was used for 2012-2013 and translated into the 24-locus MIRU-VNTR when feasible, and for 2014-2015 only MIRU-VNTR was used. Both incidence trends and molecular epidemiology were assessed for native cases. RESULTS: The average annual rate of change in TB incidence for native Danes was 2.4% vs. -6.1% and -6.9% for native Swedes and Finns respectively. In 2012-2013 Denmark had 52 native cases in the largest transmission chain vs. three cases in Sweden and ten in Finland, and during the same period the clustering rate for native Danes was 48.8% vs. 6.5% and 18.2% for native Swedes and Finns respectively. For 2014-2015, a similar pattern was seen. CONCLUSIONS: The decline of TB among natives in Denmark is slower than for Sweden and Finland, and it seems Denmark has more active transmission among natives. The focused assessment on basic native TB epidemiology reveals striking differences in TB transmission among otherwise similar low-TB-incidence countries. PMID- 29031791 TI - Biofeedback in dysphonia - progress and challenges. AB - INTRODUCTION: There is evidence that all the complex machinery involved in speech acts along with the auditory system, and their adjustments can be altered. OBJECTIVE: To present the evidence of biofeedback application for treatment of vocal disorders, emphasizing the muscle tension dysphonia. METHODS: A systematic review was conducted in Scielo, Lilacs, PubMed and Web of Sciences databases, using the combination of descriptors, and admitting as inclusion criteria: articles published in journals with editorial committee, reporting cases or experimental or quasi-experimental research on the use of biofeedback in real time as additional source of treatment monitoring of muscle tension dysphonia or for vocal training. RESULTS: Thirty-three articles were identified in databases, and seven were included in the qualitative synthesis. The beginning of electromyographic biofeedback studies applied to speech therapy were promising and pointed to a new method that enabled good results in muscle tension dysphonia. Nonetheless, the discussion of the results lacked physiological evidence that could serve as their basis. The search for such explanations has become a challenge for speech therapists, and determined two research lines: one dedicated to the improvement of the electromyographic biofeedback methodology for voice disorders, to reduce confounding variables, and the other dedicated to the research of neural processes involved in changing the muscle engram of normal and dysphonic patients. CONCLUSION: There is evidence that the electromyographic biofeedback promotes changes in the neural networks responsible for speech, and can change behavior for vocal emissions with quality. PMID- 29031792 TI - Control of myogenic tone and agonist induced contraction of intramural coronary resistance arterioles by cannabinoid type 1 receptors and endocannabinoids. AB - It was tested whether intrinsic CB1R activation modifies myogenic and agonist induced contraction of intramural coronary resistance arteries of the rat. CB1R protein was detected by immuno-histochemistry and by Western blot, its mRNA by qRT-PCR in their wall. Microsurgically prepared cylindrical coronary segments (~100-150MUm) developed myogenic contraction (~20% of relaxed luminal diameter), from which a substantial relaxation (~15%) in response to WIN55212 (a specific agonist of the CB1Rs) has been found. CB1R-mediated relaxation was blocked by O2050 and AM251 (neutral antagonist and inverse agonist of the CB1R, respectively) and was partially blocked by the NO synthase blocker Nomega-nitro-L arginine. CB1R blockade enhanced myogenic tone and augmented AngII-induced vasoconstriction (from 17.8+/-1.2 to 29.1+/-2.9%, p<0.05). Inhibition of diacylglycerol lipase by tetrahydrolipstatin, (inhibitor of endogenous 2-AG production) also augmented coronary vasoconstriction. These observations prove that vascular endocannabinoids are significant negative modulators of the myogenic and agonist-induced tone of intramural coronary arterioles acting through CB1Rs. PMID- 29031793 TI - The Role of Anchoring in Working Up Diarrhea: A Practical Teaching Case. PMID- 29031794 TI - Biophysics in Canada. PMID- 29031795 TI - Pulmonary sequelae and functional limitations in children and adults with bronchopulmonary dysplasia. AB - Preterm infants with bronchopulmonary dysplasia (BPD) often suffer from life-long pulmonary impairments in pulmonary physical function. This review summarizes our current understanding of the chronic pulmonary impairments and physical functional limitations associated with BPD from preterm birth to adulthood. It also identifies opportunities for intervention in children and adults living with chronic lung disease (CLD) after preterm birth. PMID- 29031796 TI - Peptide welding technology - A simple strategy for generating innovative ligands for G protein coupled receptors. AB - Based on their high selectivity of action and low toxicity, naturally occurring peptides have great potential in terms of drug development. However, the pharmacokinetic properties of peptides, in particular their half life, are poor. Among different strategies developed for reducing susceptibility to peptidases, and thus increasing the duration of action of peptides, the generation of branched peptides has been described. However, the synthesis and purification of branched peptides are extremely complicated thus limiting their druggability. Here we present a novel and facile synthesis of tetrabranched peptides acting as GPCR ligands and their in vitro and vivo pharmacological characterization. Tetrabranched derivatives of nociceptin/orphanin FQ (N/OFQ), N/OFQ related peptides, opioid peptides, tachykinins, and neuropeptide S were generated with the strategy named peptide welding technology (PWT) and characterized by high yield and purity of the desired final product. In general, PWT derivatives displayed a pharmacological profile similar to that of the natural sequence in terms of affinity, pharmacological activity, potency, and selectivity of action in vitro. More importantly, in vivo studies demonstrated that PWT peptides are characterized by increased potency associated with long lasting duration of action. In conclusion, PWT derivatives of biologically active peptides can be viewed as innovative pharmacological tools for investigating those conditions and states in which selective and prolonged receptor stimulation promotes beneficial effects. PMID- 29031797 TI - Impact of zero-valent iron nanoparticles on the activity of anaerobic granular sludge: From macroscopic to microcosmic investigation. AB - The study aimed at evaluating the influence of nano zero-valent iron (nZVI) on the activity of anaerobic granular sludge (AGS) from both macroscopic and microcosmic aspects using different methodologies. The tolerance response of AGS to nZVI was firstly investigated using short-term and long-term experiments, and also compared with anaerobic flocs. The Fe fate and distribution, the change of contents/structure of extracellular polymeric substances (EPS), and the variation of microbial community in the AGS after exposure to nZVI were further explored. Contrary to the anaerobic floc, insignificant inhibition of nZVI at dosage lower than 30 mmoL/L on the activity of AGS was observed. Additionally, the extra hydrogen gas released from the oxidation of nZVI was presumably suggested to stimulate the hydrogenotrophic methanogenesis process, resulting in 30% methane production enhancement when exposure to 30 mmoL/L nZVI. The microscopic analysis indicated that nZVI particles were mainly adsorbed on the surface of AGS in the form of iron oxides aggregation without entering into the interior of the granule, protecting most cells from contact damage. Moreover, surrounded EPS located outer surface of anaerobic granule could react with nZVI to accelerate the corrosion of nZVI and slow down H2 release from nZVI dissolution, thus further weakening the toxicity of nZVI to anaerobic microorganisms. The decrease in bacteria involved in glucose degradation and aceticlastic methanogens as well as the increase of hydrogenotrophic methanogens indicated a H2 mediated shift toward the hydrogenotrophic pathway enhancing the CH4 production. PMID- 29031798 TI - Viral diversity and abundance in polluted waters in Kampala, Uganda. AB - Waterborne viruses are a significant cause of human disease, especially in developing countries such as Uganda. A total of 15 virus-selective samples were collected at five sites (Bugolobi Wastewater Treatment Plant (WWTP) influent and effluent, Nakivubo Channel upstream and downstream of the WWTP, and Nakivubo Swamp) in July and August 2016. Quantitative PCR and quantitative RT-PCR was performed to determine the concentrations of four human viruses (adenovirus, enterovirus, rotavirus, and hepatitis A virus) in the samples. Adenovirus (1.53*105-1.98*107 copies/L) and enterovirus (3.17*105-8.13*107 copies/L) were found to have the highest concentrations in the samples compared to rotavirus (5.79*101-3.77*103 copies/L) and hepatitis A virus (9.93*102-1.11*104 copies/L). In addition, next-generation sequencing and metagenomic analyses were performed to assess viral diversity, and several human and vertebrate viruses were detected, including Herpesvirales, Iridoviridae, Poxviridae, Circoviridae, Parvoviridae, Bunyaviridae and others. Effluent from the wastewater treatment plant appears to impact surface water, as samples taken from surface water downstream of the treatment plant had higher viral concentrations than samples taken upstream. Temporal fluctuations in viral abundance and diversity were also observed. Continuous monitoring of wastewater may contribute to assessing viral disease patterns at a population level and provide early warning of potential outbreaks using wastewater-based epidemiology methods. PMID- 29031799 TI - Impact of humic acid on the photoreductive degradation of perfluorooctane sulfonate (PFOS) by UV/Iodide process. AB - Iodide photolysis under UV illumination affords an effective method to produce hydrated electrons (eaq-) in aqueous solution. Therefore, UV/Iodide photolysis can be utilized for the reductive degradation of many recalcitrant pollutants. However, the effect of naturally occurring organic matter (NOM) such as humic and fulvic acids (HA/FA), which may impact the efficiency of UV/Iodide photoreduction, is poorly understood. In this study, the UV photoreductive degradation of perfluorooctane sulfonate (PFOS) in the presence of I- and HA is studied. PFOS undergoes a relatively slow direct photoreduction in pure water, a moderate level of degradation via UV/Iodide, but a rapid degradation via UV/Iodide/HA photolysis. After 1.5 h of photolysis, 86.0% of the initial [PFOS] was degraded in the presence of both I- and HA with a corresponding defluorination ratio of 55.6%, whereas only 51.7% of PFOS was degraded with a defluorination ratio of 4.4% via UV/Iodide illumination in the absence of HA. The relative enhancement in the presence of HA in the photodegradation of PFOS can be attributed to several factors: a) HA enhances the effective generation of eaq- due to the reduction of I2, HOI, IO3- and I3- back to I-; b) certain functional groups of HA (i.e., quinones) enhance the electron transfer efficiency as electron shuttles; c) a weakly-bonded association of I- and PFOS with HA increases the reaction probability; and d) absorption of UV photons by HA itself produces eaq-. The degradation and defluorination efficiency of PFOS by UV/Iodide/HA process is dependent on pH and HA concentration. As pH increases from 7.0 to 10.0, the enhancement effect of HA improves significantly. The optimal HA concentration for the degradation of 0.03 mM PFOS is 1.0 mg L-1. PMID- 29031800 TI - Tannic acid promotes ion release of copper oxide nanoparticles: Impacts from solution pH change and complexation reactions. AB - The increasing number of applications in which copper oxide nanoparticles (CuO NPs) are used, may lead to potential release of CuO NPs into the environment. However, the impact of natural organic matters on the behavior and fate of CuO NPs in aquatic media is still largely unknown. In this study, the dissolution and aggregation of CuO NPs under the exposure of tannic acid (TA) were monitored over a period of 72 h, with a focus on assessing the contributions of solution pH changes and complexation reactions. Results showed that the total amount of Cu2+ released from CuO NPs increased in the presence of TA especially at the highest TA concentration of 73.5 MUmol/L. Although TA was observed to wrap around the CuO NPs, the aggregation of CuO NPs was not strongly influenced by TA and by the solution pH as investigated in this study. The kinetics of Cu2+ release were fitted using the modified pseudo second-order model and the rate of dissolution was assessed to be highest at TA = 14.7 MUmol/L. At pH = 4, the increased H+ concentration was responsible for increased Cu2+ release, whereas the complexation reaction between Cu2+ and TA dominated at pH = 7. These findings suggested that the effects of TA on the dissolution of CuO NPs were a combination of solution pH change and complexation reaction, the relative fractions of which also depended on the solution pH. Additionally, the percentage of Cu2+ released from the CuO NPs was found to increase upon decreasing concentrations of CuO NPs. Our work helps to further understand how and to which extent natural organic matters affect the behavior and fate of CuO NPs. PMID- 29031801 TI - Use of lectin-magnetic separation (LMS) for detecting Toxoplasma gondii oocysts in environmental water samples. AB - Proof-of-principle of lectin-magnetic separation (LMS) for isolating Toxoplasma oocysts (pre-treated with 0.5% acidified pepsin (AP)) from water for subsequent detection by microscopy or molecular methods has been shown. However, application of this technique in the routine water-analysis laboratory requires that the method is tested, modified, and optimized. The current study describes attempts to apply the LMS technique on supernatants from water samples previously analyzed for contamination with Cryptosporidium and Giardia using standard methods, and the supernatant following immunomagnetic separation (IMS) retained. Experiments on AP-treatment of Toxoplasma oocysts in situ in such samples demonstrated that overnight incubation at 37 degrees C was adequate, but excess AP had to be removed before continuing to LMS; neutralization in sodium hydroxide and a single wash step was found to be suitable. Mucilaginous material in post-IMS samples that had been stored at room temperature without washing, which was found to be probably an exudate from bacterial and fungal overgrowth, hampered the isolation of T. gondii oocysts by LMS beads. For detection, microscopy was successful only for clean samples, as debris occluded viewing in dirtier samples. Although qPCR was successful, for some samples non-specific inhibition occurred, as demonstrated by inhibition of an internal amplification control in the qPCR reaction. For some, but not all, samples this could be addressed by dilution. Finally, the optimized methodology was used for a pilot project in which 23 post IMS water sample concentrates were analyzed. Of these, only 20 provided interpretable results (without qPCR inhibition) of which one sample was positive, and confirmed by sequencing of PCR product, indicating that Toxoplasma oocysts occur in Norwegian drinking water samples. In conclusion, we suggest that post IMS samples may be suitable for analysis for Toxoplasma oocysts using LMS, only if freshly processed or washed before being refrigerated. In addition, application of AP treatment requires a neutralization step before proceeding to LMS. For detection, qPCR, rather than microscopy, is the most appropriate approach, although some inhibition may still occur, and therefore inclusion of an internal amplification control is important. Our study indicates that, despite some limitations, this approach would be appropriate for further large-scale analysis of samples of raw and treated drinking water. PMID- 29031802 TI - Extreme levels of ambient air pollution adversely impact cardiac and central aortic hemodynamics: the AIRCMD-China study. AB - Ambient air pollution is an independent risk factor for cardiovascular diseases. However, the underlying mechanisms have yet to be fully elucidated. We performed a panel study on 65 nonsmoking patients with metabolic syndrome, with four repeated clinical visits between 2012 and 2013 in Beijing, China. Cardiac and central aortic hemodynamic parameters were measured by pulse wave analyses as subendocardial viability ratio, ejection duration, and central aortic pressure. We also calculated rate-pressure product parameter and collected peripheral blood for analyses. High levels of ambient particulate matter with diameter <=10 and 2.5 MUm (PM10 and PM2.5), black carbon, sulfur dioxide, and nitrogen dioxide were 121.3, 99.5, 6.5, 24.5, and 59.2 MUg/m3, respectively. Short- to medium-term exposures to high levels of ambient air pollution adversely impacted central hemodynamics-derived surrogates of myocardial perfusion and oxygen demand. Each 10 MUg/m3 increase in PM2.5 was associated with significant decreases of 0.67% (95% confidence interval: -2.84, -0.22) in subendocardial viability ratio at moving average 35 days (MA35) and an increase of 0.31 in rate-pressure product (95% confidence interval: 0.03, 0.59) at MA5. In conclusion, our results suggest that impaired myocardial perfusion and increased myocardial oxygen demand may play importantly mechanistic roles in air pollution-attributed cardiovascular diseases. PMID- 29031804 TI - Transcriptional response after exposure to domoic acid-producing Pseudo-nitzschia in the digestive gland of the mussel Mytilus galloprovincialis. AB - Bivalve molluscs are filter feeding species that can accumulate biotoxins in their body tissues during harmful algal blooms. Amnesic Shellfish Poisoning (ASP) is caused by species of the diatom genus Pseudo-nitzschia, which produces the toxin domoic acid. The Mytilus galloprovincialis digestive gland transcriptome was de novo assembled based on the sequencing of 12 cDNA libraries, six obtained from control mussels and six from mussels naturally exposed to domoic acid producing diatom Pseudo-nitzschia australis. After de novo assembly 94,727 transcripts were obtained, with an average length of 1015 bp and a N50 length of 761 bp. The assembled transcripts were clustered (homology > 90%) into 69,294 unigenes. Differential gene expression analysis was performed (DESeq2 algorithm) in the digestive gland following exposure to the toxic algae. A total of 1158 differentially expressed unigenes (absolute fold change > 1.5 and p-value < 0.05) were detected: 686 up-regulated and 472 down-regulated. Several membrane transporters belonging to the family of the SLC (solute carriers) were over expressed in exposed mussels. Functional enrichment was performed using Pfam annotations obtained from the genes differentially expressed, 37 Pfam families were found to be significantly (FDR adjusted p-value < 0.1) enriched. Some of these families (sulfotransferases, aldo/keto reductases, carboxylesterases, C1q domain and fibrinogen C-terminal globular domain) could be putatively involved in detoxification processes, in the response against of the oxidative stress and in immunological processes. Protein network analysis with STRING algorithm found alteration of the Notch signaling pathway under the action of domoic acid producing Pseudo-nitzschia. In conclusion, this study provides a high quality reference transcriptome of M. galloprovincialis digestive gland and identifies potential genes involved in the response to domoic acid. PMID- 29031803 TI - The burden and correlates of hypertension among Chinese rural population in Han, Uygur, and Kazak: a cross-sectional study. AB - The present study was conducted to investigate the prevalence, awareness, treatment, control, and associated risk factors of hypertension among rural population in Xinjiang Province in Northwest China. The Cardiovascular Risk Survey study was conducted on a representative sample of the Northwest China adult population. A four-stage stratified cluster random sampling scheme was adopted to recruit representative samples. The data were collected by trained staff. Multivariable logistic regression models were used to identify the associated risk factors. Overall, 8295 study participants aged 35-101 years were enrolled. The overall hypertension prevalence was 35.01%. The prevalence of hypertension in Han, Uygur, and Kazak population was 36.84%, 33.32%, and 52.57%, respectively. The hypertension awareness, treatment, control, and control among treated participants were 56.1%, 44.7%, 10.9%, and 24.3%, respectively. Multivariate logistic regression showed that age, body mass index, central obesity, ethnic, and drinking status were identified as risk factors for hypertension. Hypertension was found to be highly prevalent in rural adults in Xinjiang, China, especially in Kazak population. Although the levels of awareness, treatment, and control have improved, it was still lower than developed countries. Effective measures should be adopted to promote the prevention and control of hypertension. PMID- 29031805 TI - Aptamer-targeted delivery of Bcl-xL shRNA using alkyl modified PAMAM dendrimers into lung cancer cells. AB - RNAi-based gene therapy has been recently considered as a promising approach against cancer. Targeted delivery of drug, gene or therapeutic RNAi-based systems to tumor cells is one of the important issues in order to reduce side effects on normal cells. Several strategies have been developed to improve the safety and selectivity of cancer treatments including antibodies, peptides and recently aptamers with various attractive characteristics including higher target specificity, affinity and reduced toxicity. Here we described a novel targeted delivery platform comprising modified PAMAM with 10-bromodecanoic acid (10C) and 10C-PEG for improvement of transfection efficiency, AS1411 aptamer for targeting nucleolin ligand on target cancer cells and shRNA plasmid for specific knockdown of Bcl-xL protein. Modified vector could significantly improve the transfection efficiency even after covalent or non-covalent aptamer binding compared to the non-targeted vector in A549 cells. The results of gene silencing and apoptosis assay indicated that our targeted shRNA delivery system could efficiently down regulate the Bcl-xL expression up to 25% and induce 14% late apoptosis in target cancer cells with strong cell selectivity. This study proposed a novel targeted non-viral system for shRNA-mediated gene-silencing in cancer cells. PMID- 29031806 TI - Tumor suppressive protein phosphatases in human cancer: Emerging targets for therapeutic intervention and tumor stratification. AB - Aberrant protein phosphorylation is one of the hallmarks of cancer cells, and in many cases a prerequisite to sustain tumor development and progression. Like protein kinases, protein phosphatases are key regulators of cell signaling. However, their contribution to aberrant signaling in cancer cells is overall less well appreciated, and therefore, their clinical potential remains largely unexploited. In this review, we provide an overview of tumor suppressive protein phosphatases in human cancer. Along their mechanisms of inactivation in defined cancer contexts, we give an overview of their functional roles in diverse signaling pathways that contribute to their tumor suppressive abilities. Finally, we discuss their emerging roles as predictive or prognostic markers, their potential as synthetic lethality targets, and the current feasibility of their reactivation with pharmacologic compounds as promising new cancer therapies. We conclude that their inclusion in clinical practice has obvious potential to significantly improve therapeutic outcome in various ways, and should now definitely be pushed forward. PMID- 29031807 TI - Cytochrome c peroxidase regulates intracellular reactive oxygen species and methylglyoxal via enzyme activities of erythroascorbate peroxidase and glutathione-related enzymes in Candida albicans. AB - D-erythroascorbate peroxidase (EAPX1) deficiency causes glutathione deprivation, leading to the accumulation of methylglyoxal and reactive oxygen species (ROS), and especially, induction of cytochrome c peroxidase (Ccp1) in Candida albicans. Nevertheless, reciprocal effects between changes in Ccp1 activity and the antioxidative D-erythroascorbic acid- and glutathione-dependent redox status, which reflects methylglyoxal biosynthesis altering pathophysiology are unclear in eukaryotes. To elucidate the effect of CCP1 expression on EAPX1 and glutathione reductase (Glr1) activity-mediated D-erythroascorbic acid biosynthesis and redox homeostasis, the CCP1 gene was disrupted and overexpressed. First, we demonstrated both glutathione-independent and-dependent metabolite contents and their corresponding gene transcripts and enzyme activities (i.e., Ccp1, catalase peroxidase [KatG], superoxide dismutase [Sod], Eapx1, and Glr1) in CCP1 mutants. Second, methylglyoxal-oxidizing alcohol dehydrogenase (Adh1) and methylglyoxal reducing oxidoreductase activity on glycolytic methylglyoxal and pyruvate production and NAD(P)H content were determined in these mutants. Contrary to our expectation, CCP1 disruption (42.19+/-3.22nmolO2h-1mgwetcell-1) failed to affect cell respiration compared to the wild-type strain (41.62+/-7.11nmolO2h-1mgwetcell 1) under cyanide treatment, and in contrast to hydrogen peroxide (H2O2) treatment (21.74+/-1.03nmol O2h-1mgwetcell-1). Additionally, Ccp1 predominantly detoxified H2O2 rather than negligible scavenging activities towards methylglyoxal and other oxidants. CCP1 deficiency stimulated Sod and Adh1 activity but downregulated Glr1, Eapx1, catalase, and peroxidase activity while enhancing KatG, EAPX1, and GLR1 transcription by decreasing glutathione and D-erythroascorbic acid and increasing pyruvate. Noticeably, the ROS-accumulating CCP1-deficient mutant maintained steady-state levels of methylglyoxal, which was revealed to be regulated by methylglyoxal-oxidizing and -reducing activity with drastic changes in NAD(P)H. We confirmed and clarified our results by showing that CCP1/EAPX1 double disruptants underwent severe growth defects due to the D-erythroascorbic acid and glutathione depletion because of pyruvate overaccumulation. These observations were made in both budding and hyphal-growing CCP1 mutants. The revealed metabolic network involving Ccp1 and other redox regulators affected ROS and methylglyoxal through D-erythroascorbic acid and glutathione-dependent metabolites, thereby influencing dimorphism. This is the first report of the Ccp1 mediated D-erythroascorbic acid and glutathione biosynthesis accompanying methylglyoxal scavengers for full fungal virulence. PMID- 29031808 TI - Specific disruption of contextual memory recall by sparse additional activity in the dentate gyrus. AB - The dentate gyrus (DG) of the hippocampus is essential for contextual and spatial memory processing. While lesion or silencing of the DG impairs contextual memory encoding and recall, overly activated DG also prevents proper memory retrieval. Abnormally elevated activity in the DG is repeatedly reported in amnesic mild cognitive impairment (aMCI) patients or aged adults. Although the correlation between memory failure and abnormally active hippocampus is clear, their causal relationship or the underlying nature of such interfering activity is not well understood. Using optogenetics aided by a carefully controlled adeno-associated virus infection system, we were able to examine the differential effects of abnormally activated hippocampus on mice motor behavior and memory function, depending on the extent of the stimulation. Optogenetic stimulation of massive proportion of dorsal DG cells resulted in memory retrieval impairment, but also induced increase in general locomotion. Random additional activity in a sparse population of dorsal DG neurons, however, interfered with contextual memory recall without inducing hyperactivity. Our findings thus establish the causal role of elevated DG activity on memory recall failure, suggesting such aberrant DG activity may contribute to amnesic symptoms in aMCI patients and aged adults. PMID- 29031809 TI - Grouping subjects based on conditioning criteria reveals differences in acquisition rates and in strength of conditioning-specific reflex modification. AB - Averaging behavioral data such as the nictitating membrane response (NMR) across subjects can conceal important individual and group differences. Analyses were conducted of NMR data from rabbits that were grouped based on the point during NMR conditioning when subjects produced 8 conditioned responses (CR) in a set of 10 trials. This resulted in five groups (Early Day 1, Late Day 1, Early Day 2, Late Day 2, Early Day 3) in which group differences in CR acquisition rates were found. Percent (%) CRs were not found to increase monotonically and between session differences in % CR were found. Conditioning-specific reflex modification (CRM) of the NMR is a type of enhanced reflexive responding of the NMR that is detected when the unconditioned stimulus (US) is presented in the absence of the conditioned stimulus (CS) following paired classical conditioning. CRM occurred in some subjects in all five groups. Subjects from both the group that was fastest and the group that was slowest to reach the learning criterion had unconditioned response (UR) topographies following NMR conditioning that strongly resembled the CR-UR response sequence elicited during NMR conditioning. This finding was most pronounced when the US duration used to assess CRM was equivalent to that used during NMR conditioning, further evidence to support the hypothesis that CRM is a CR that has generalized from the CS to the US. While grouping data based on conditioning criteria did not facilitate identifying individuals more predisposed to exhibiting CRM, strong CRM only occurred in the groups that reached the conditioning criterion the fastest. PMID- 29031810 TI - The role of three-dimensional pseudo-continuous arterial spin labelling in grading and differentiating histological subgroups of meningiomas. AB - AIM: To evaluate the usefulness of pseudo-continuous arterial spin labelling (pCASL) imaging in grading and differentiating histological subtypes of meningiomas. MATERIALS AND METHODS: In this prospective study, conventional magnetic resonance imaging (MRI) with contrast-enhanced T1-weighted images and pCASL were acquired with a 3 T MRI system before surgery in 125 consecutive patients with suspected meningiomas. Finally, the perfusion parameters were collected from 84 grade I and 23 grade II meningiomas. On the pCASL perfusion map, the mean absolute cerebral blood flow (CBF) values from the meningioma (CBFtumour), peritumoural oedema (CBFPTO), white matter of contralateral centrum semi-ovale (CBFwm) and normal grey matter (CBFgm) were calculated. Additionally, the associations of these perfusion parameters with the value of ki-67 index were analysed. RESULTS: The CBFwm value correlated negatively with the largest diameter of the tumour, which limited its usage as a reference for ratio calculation. The CBFtumour values of grade II and grade I meningiomas did not differ significantly: 137.36+/-71.85 ml/min/100 g versus 123.58+/-135.80 ml/min/100 g (p=0.641). The CBFPTO value was higher for grade II meningioma as than for grade I meningiomas: 30.30+/-15.56 ml/min/100 g versus 22.33+/-9.87 ml/min/100 g (p=0.037). The CBFtumour value was highest in angiomatous meningioma and lowest in fibrous meningioma, thus enabling the differentiation of subtypes of meningioma. The CBFtumour value did not correlate with the ki-67 index of meningioma. CONCLUSION: The CBFPTO value, rather than the CBFtumour value, from pCASL imaging may serve as a key factor in distinguishing different grades of meningiomas. Moreover, angiomatous meningiomas and fibrous meningiomas can be identified by CBFtumour value. PMID- 29031811 TI - Production of low molecular collagen peptides-loaded liposomes using different charged lipids. AB - To encapsulate water soluble collagen peptides, liposomes loaded with peptides were assembled using a combination of thin film hydration and ultrasonication emulsification techniques. The influence of lipid charge, duration and power of ultrasonication, and collagen peptide concentration were evaluated. Layered liposomes loaded with collagen peptides, charged lipids, chitosan (+) or low methoxyl pectin (-) were produced using the layer-by-layer electrostatic deposition method. For the liposomes loaded with collagen peptides, the most efficient and dependable manufacturing method was variation of the ultrasonication duration, which was capable of producing smaller sizes (through increasing ultrasonication duration) and liposomes loaded with peptides with >60% encapsulation efficiency. For layered liposomes loaded with collagen peptides, charged lipids were determined to be more effective in the production of smaller liposomes than charged biopolymers. In addition, layered and non-layered liposomes loaded with peptides with a particle size <100nm were physically stable during storage, regardless of storage temperature and time. PMID- 29031812 TI - Nestmate discrimination based on familiarity but not relatedness in eastern carpenter bees. AB - How animals recognize conspecific individuals has important outcomes in many contexts, but interactions among group members are particularly important. Two recognition criteria are often implicated in these interactions: kin recognition is based on relatedness cues and nestmate recognition is based on familiarity. For social insects, both types of recognition are possible, as many nestmates are close kin and familiarity can develop among individuals that encounter each other repeatedly. To discern whether social insects use kin or nestmate recognition, it is necessary to simultaneously assess how relatedness and familiarity influence behaviour. The facultatively social eastern carpenter bee, Xylocopa virginica, offers an excellent opportunity to study how either nestmate or kin recognition (or both) may influence interactions among nestmates, as many females disperse from their natal nests in spring, and often attempt to join new colonies that may contain unrelated individuals. This leads to frequent behavioural interactions among females that may be related or unrelated, and familiar or unfamiliar. We used observation nests and microsatellite loci to assess the influence of familiarity and relatedness on behavioural interactions during the early phase of colony development, when females establish reproductive queues prior to brood production. Females were more likely to feed and were less aggressive to familiar rather than related nestmates, regardless of their relatedness. This suggests that eastern carpenter bees primarily use learned cues to discriminate among nestmates. Interactions with nestmates were also context-dependent, as females returning to the nest without food were the recipients of more aggression than those returning with food. If spring dispersal leads to reduced relatedness in X. virginica colonies, then nestmate recognition based on familiarity would be an important factor in maintaining group cohesion. PMID- 29031814 TI - Condom use in adolescents and young women following initiation of long- or short acting contraceptive methods. AB - OBJECTIVE: The objective was to determine if young women initiating long-acting reversible contraceptives (LARCs) who report new sexual partner(s) would be less likely to report use of a condom than women using short-acting reversible contraceptive (SARC) methods. STUDY DESIGN: We enrolled a prospective cohort of 13-24-year-old women attending an adolescent-specific contraception clinic. Participants completed questionnaires at the contraceptive initiation visit and 6 months later. At follow-up, we asked if they had sexual intercourse with a new partner, if they had used condoms, if their condom use patterns had changed and why. We analyzed factors associated with condom use. RESULTS: We enrolled 1048 women; 771 (73.6%) initiated LARC and 384 (36.6%) initiated SARC. At 6 months, 508 participants (48.5%) completed the follow-up survey: 380 LARC initiators and 128 SARC initiators. Approximately 23% of LARC initiators and 27% of SARC initiators reported a new partner. SARC initiators who had a new partner were more likely to report condom use at least one time than LARC initiators reporting a new partner [82.4% vs. 59.6%; odds ratio (OR): 3.17, 95% confidence interval (CI): 1.19-8.43]. Such condom use was 42% higher among LARC initiators who reported a new sexual partner than those without and 38% higher for SARC initiators. In multivariable logistic regression, new sexual partner [adjusted OR (aOR) 3.29, 95% CI 2.10-5.16], SARC initiation (aOR 2.08, 95% CI 1.35-3.22) and age <20 (aOR 1.68, 95% CI 1.14-2.49) were independent predictors of condom use. CONCLUSION: While young women are less likely to report condom use in the 6 months after initiating a LARC than after initiating a short-acting method, both groups increase their condom use similarly if they report a new sexual partner. IMPLICATIONS: The differential in condom use between LARC initiators and SARC initiators is likely related to their perceived need for pregnancy prevention, as both groups increase their condom use similarly if they had new sexual partners. PMID- 29031813 TI - Song practice as a rewarding form of play in songbirds. AB - In adult songbirds, the primary functions of song are mate attraction and territory defense; yet, many songbirds sing at high rates as juveniles and outside these primary contexts as adults. Singing outside primary contexts is critical for song learning and maintenance, and ultimately necessary for breeding success. However, this type of singing (i.e., song "practice") occurs even in the absence of immediate or obvious extrinsic reinforcement; that is, it does not attract mates or repel competitors. Here we review studies that support the hypothesis that song practice is stimulated and maintained by intrinsic reward mechanisms (i.e., that it is associated with a positive affective state). Additionally, we propose that song practice can be considered a rewarding form of play behavior similar to forms of play observed in multiple young animals as they practice sequences of motor events that are used later in primary adult reproductive contexts. This review highlights research suggesting at least partially overlapping roles for neural reward systems in birdsong and mammalian play and evidence that steroid hormones modify these systems to shift animals from periods of intrinsically rewarded motor exploration (i.e., singing in birds and play in mammals) to the use of similar motor patterns in primary reproductive contexts. PMID- 29031815 TI - Uptake and correlates of contraception among postpartum women in Kenya: results from a national cross-sectional survey. AB - OBJECTIVE: The objective was to characterize uptake and correlates of effective contraceptive use postpartum. STUDY DESIGN: We analyzed data from a national, cross-sectional evaluation of prevention of mother-to-child HIV transmission programs that enrolled women attending 6-week or 9-month infant immunization visits at 120 Kenyan maternal and child health clinics. We classified women who resumed sexual activity postpartum and did not desire a child within 2 years as having a need for family planning (FP). RESULTS: We included 955 (94%) of 1012 women 8-10 months postpartum in the analysis. Mean age was 25.8 years and 36% were primigravidas. By 9 months postpartum, 62% of all women used contraception and 59% used effective contraception [injectables, implants, intrauterine devices [IUDs], oral contraceptives [OCs] and tubal ligations]. Most contraceptive users (61%) used injectables, followed by implants (10%), OCs (6%), IUDs (4%) and condoms alone (2%). The majority (n=733, 77%) had a need for FP, and 67% of 733 women with FP need used effective contraception. Among women with a need for FP, effective contraception use was higher among those who discussed FP in postnatal care (PNC) than who did not discuss FP in PNC [prevalence ratio (PR) for PNC alone: 1.35, 95% confidence interval (CI): 1.16-1.58; PR for PNC and antenatal care (ANC): 1.42, 95% CI: 1.21-1.67; p=.001 for both]. CONCLUSIONS: Two thirds of postpartum women with a need for FP used effective contraception at 9 months postpartum, and use was associated with discussing FP during PNC. IMPLICATIONS: Integrating FP counseling in ANC/PNC could be an effective strategy to increase effective contraception use. PMID- 29031816 TI - Designing immunostimulatory double stranded messenger RNA with maintained translational activity through hybridization with poly A sequences for effective vaccination. AB - Messenger (m)RNA vaccines require a safe and potent immunostimulatory adjuvant. In this study, we introduced immunostimulatory properties directly into mRNA molecules by hybridizing them with complementary RNA to create highly immunogenic double stranded (ds)RNAs. These dsRNA formulations, comprised entirely of RNA, are expected to be safe and highly efficient due to antigen expression and immunostimulation occurring simultaneously in the same antigen presenting cells. In this strategy, design of dsRNA is important. Indeed, hybridization using full length antisense (as)RNA drastically reduced translational efficiency. In contrast, by limiting the hybridized portion to the mRNA poly A region, efficient translation and intense immunostimulation was simultaneously obtained. The immune response to the poly U-hybridized mRNAs (mRNA:pU) was mediated through Toll-like receptor (TLR)-3 and retinoic acid-inducible gene (RIG)-I. We also demonstrated that mRNA:pU activation of mouse and human dendritic cells was significantly more effective than activation using single stranded mRNA. In vivo mouse immunization experiments using ovalbumin showed that mRNA:pU significantly enhanced the intensity of specific cellular and humoral immune responses, compared to single stranded mRNA. Our novel mRNA:pU formulation can be delivered using a variety of mRNA carriers depending on the purpose and delivery route, providing a versatile platform for improving mRNA vaccine efficiency. PMID- 29031817 TI - BCRP/ABCG2 and high-alert medications: Biochemical, pharmacokinetic, pharmacogenetic, and clinical implications. AB - The human breast cancer resistance protein (BCRP/ABCG2) is an ATP-binding cassette efflux transporter that uses ATP hydrolysis to expel xenobiotics from cells, including anti-cancer medications. It is expressed in the gastrointestinal tract, liver, kidney, and brain endothelium. Thus, ABCG2 functions as a tissue barrier to drug transport that strongly influences the pharmacokinetics of substrate medications. Genetic polymorphisms of ABCG2 are closely related to inter-individual variations in therapeutic performance. The common single nucleotide polymorphism c.421C>A, p.Q141K reduces cell surface expression of ABCG2 protein, resulting in lower efflux of substrates. Consequently, a higher plasma concentration of substrate is observed in patients carrying an ABCG2 c.421C>A allele. Detailed pharmacokinetic analyses have revealed that altered intestinal absorption is responsible for the distinct pharmacokinetics of ABCG2 substrates in genetic carriers of the ABCG2 c.421C>A polymorphism. Recent studies have focused on the high-alert medications among ABCG2 substrates (defined as those with high risk of adverse events), such as tyrosine kinase inhibitors (TKIs) and direct oral anti-coagulants (DOACs). For these high-alert medications, inter-individual variation may be closely related to the severity of side effects. In addition, ethnic differences in the frequency of ABCG2 c.421C>A have been reported, with markedly higher frequency in East Asian (~30-60%) than Caucasian and African-American populations (~5-10%). Therefore, ABCG2 polymorphisms must be considered not only in the drug development phase, but also in clinical practice. In the present review, we provide an update of basic and clinical knowledge on genetic polymorphisms of ABCG2. PMID- 29031819 TI - Managing text-recycling: an ongoing issue. PMID- 29031818 TI - Camptothecin and its analog SN-38, the active metabolite of irinotecan, inhibit binding of the transcriptional regulator and oncoprotein FUBP1 to its DNA target sequence FUSE. AB - The transcriptional regulator FUSE Binding Protein 1 (FUBP1) is overexpressed in more than 80% of all human hepatocellular carcinomas (HCCs) and other solid tumor entities including prostate and colorectal carcinoma. FUBP1 expression is required for HCC tumor cell expansion, and it functions as an important pro proliferative and anti-apoptotic oncoprotein that binds to the single-stranded DNA sequence FUSE to regulate the transcription of a variety of target genes. In this study, we screened an FDA-approved drug library and discovered that the Topoisomerase I (TOP1) inhibitor camptothecin (CPT) and its derivative 7-ethyl-10 hydroxycamptothecin (SN-38), the active irinotecan metabolite that is used in the clinics in combination with other chemotherapeutics to treat carcinoma, inhibit FUBP1 activity. Both molecules prevent in vitro the binding of FUBP1 to its single-stranded target DNA FUSE, and they induce deregulation of FUBP1 target genes in HCC cells. Our results suggest the interference with the FUBP1/FUSE interaction as a further molecular mechanism that, in addition to the inactivation of TOP1, may contribute to the therapeutic potential of CPT/SN-38. Targeting of FUBP1 in HCC therapy with SN-38/irinotecan could be a particularly interesting option because of the high FUBP1 levels in HCC cells and their dependency on FUBP1 expression. PMID- 29031820 TI - Suidae from Kanapoi. AB - The whole collection of Suidae from Kanapoi is revised in the context of the systematics and evolution of Nyanzachoerus in the Pliocene of Eastern Africa. It contains only two species, Nyanzachoerus kanamensis and Notochoerus jaegeri. The size and morphology of their premolars overlap, but not those of their m3s. No transitional form between them is known in Kenya, but some populations from Uganda and Ethiopia display intermediate characters, suggesting that No. jaegeri could be descended from a kanamensis-like ancestor. However, the cranial remains of No. jaegeri from Kanapoi are insufficient to formally establish the affinities of the species. On the basis of the dentition, Notochoerus euilus could be descended from No. jaegeri. The noticeable absence of Kolpochoerus at Kanapoi (and in the whole Turkana Basin at that time) remains unexplained. The presence of a species with affinity to Nyanzachoerus tulotos at Ekora raises the possibility that uppermost Miocene sediments occur there. PMID- 29031821 TI - Development of an antigen specific colloidal gold immunochromatographic assay for detection of antibody to M. wenyonii in bovine sera. AB - The goal of this research was to develop a colloidal gold immunochromatographic strip test for detection of antibody to Mycoplasma wenyonii (M. wenyonii) in bovine using specific antigen. M. wenyonii was isolated from blood samples from the spontaneously infected cattle in Hebei province, China. Suspensions of the M. wenyonii antigenic proteins were prepared by freeze-thaw cycles and ultrasonication. Candidate antigens were screened with sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and Western blotting. The specific bands of the most antigenic proteins were excised from the gel and were purified by using a gel extraction kit. A colloidal gold immunochromatographic assay using the purified specific proteins as the coating antigen (sp-GICA) was developed for detection of antibody to M. wenyonii. Blood samples from cows in the field were tested for antibody to M. wenyonii by the sp-GICA strip and enzyme-linked immunosorbent assay (ELISA) simultaneously to compare the specificity, sensitivity and accuracy. The results showed that the specific proteins bands with sufficient immunoreactivity have been identified. The apparent molecular weights of the proteins were 115 kDa and 60 kDa, respectively. The stability and reproducibility were quite excellent after the storage of the strip at room temperature for 5 months. This sp-GICA showed 95.48% (148/155), 92.86% (39/42) and 94.92% (187/197) in terms of specificity, sensitivity and accuracy compared to ELISA. The sp-GICA described here shows excellent agreement with ELISA and it is shown to be a simple, convenient, specific and highly sensitive assay for detection of serum antibodies to M. wenyonii. PMID- 29031822 TI - A systematic review of volar locking plate removal after distal radius fracture. AB - BACKGROUND: Indication of volar locking plate (VLP) removal after bony healing of distal radius fracture (DRF) is controversial. Studies with various range of removal rate were reported. The purpose of this systematic review was to investigate the frequency and the reasons of hardware removal over the world. We hypothesized that more frequent VLP removal contribute to better clinical outcomes. METHODS: The authors searched all available literature in the PubMed and EMBASE databases for articles reporting on outcomes of treatment using VLP for DRF. Data collection included hardware removal rate, complication rate, clinical and radiological outcomes. We analyzed correlation between hardware removal rate with clinical and radiological outcomes. RESULTS: A total of 3472 articles were screened, yielding 52 studies for final review. The mean hardware removal rate was 9%, ranging from 0 to 100%. The mean removal rate in studies from France, Norway, Japan, and Belgium was as high as 19%. The mean removal rate in studies from the US was low (3%). The most frequent reasons for extraction were routine removal (22%), tendon irritation or tenosynovitis (14%), hardware problem (14%), and patient' request (13%). Although routine removal and patient' request were not counted as complication, correlation between removal rate with complication rate was strong (rho=0.64, p<0.001). Correlations between clinical and radiological outcomes were week except for volar tilt (rho=-0.42, p=0.009). CONCLUSIONS: There was a diversity of removal rate and reasons in the studies over the world. High frequent VLP removal did not contribute to better clinical outcomes. PMID- 29031823 TI - Letter to the editor concerning "Is weather related to the number of assaults seen at emergency departments?" PMID- 29031824 TI - The Exeter Trauma Stem: A radiographic follow-up at minimum of five years post implantation. AB - INTRODUCTION: The Exeter Trauma Stem (ETS) has been recommended by National Institute of Clinical Excellence (NICE) guidelines in the United Kingdom as a proven, cemented stem. A single laboratory study in the literature has raised possible concerns about the polished finish of the ETS and subsequent potential for accelerated loosening although there is little clinical evidence to support or refute this. METHODS: The aim of this study was to assess clinical outcomes of the ETS at a minimum of five years post implantation. Primary outcomes were radiological loosening at a minimum of five years along with survivorship of the implant. Patient demographics were prospectively collected and followed up. RESULTS: 218 ETS's (in 214 patients) were implanted from June 2002 until August 2008 in a single centre by a wide variety of surgeons of differing grades. Of these, 16 underwent revision surgery for fracture (2), dislocation (3), infection (1) and acetabular erosion (10) but there were no revisions for aseptic loosening of the implant. There were 64.0% (137/214) patients that had died by the time of this study. Of the remaining patients, 90 had radiographs of their hips at a minimum of 5 years with 36 of these at a minimum of 7 years post implantation. None of these had evidence of loosening. CONCLUSION: The ETS is a robust and suitable stem for implantation in patients with hip fractures. There are no clinical suspicions or increased rates of loosening with the ETS in our study. The concerns about surface finish are not borne out in our clinical study which shows no evidence of loosening at a minimum of five years post operation. It confers many advantages including ease of revision and it should continue to be used as per NICE guidelines. PMID- 29031825 TI - Hip fracture presentations are less frequent at weekends. PMID- 29031826 TI - The top 100 cited of injury-international journal of the care of the injured: A bibliometric analysis. AB - BACKGROUND: With nearly 50 years' of development, Injury has become one of the leading journals in its specialty. The aim of this article is to identify, analyze the characteristics of the 100 most cited articles published by the journal to date. METHOD: We searched the Thomson Reuters Web of Science Core Collection for citations of all articles published in Injury since its launch. For the Top 100 most frequently cited articles, title, author name, number of authors, publishing date, citation number, country of origin, institution, pages, number of reference, type of article, study topic, study design, funding source, and level of evidence of each clinical article were recorded and analyzed. RESULTS: Only 50 self-citations were found in 12436 total citations of the top100 articles, fifty-four articles exceeded 100 citations. Total citations of the Top 100 articles ranged from 77 to 599. The Top 100 articles were published between 1973 and 2012, the mean authorship and institution number per paper was 3.92 and 1.84 respectively. The mean page number was 8.26 and the mean reference number was 45.2. England, Germany and Switzerland ranked the top three countries of origin. Among the T100 articles, there were 50 clinical studies, 5 basic researches, and 45 reviews. The most common study type was case series, and most common topics were bone reconstruction, trauma and bone fracture. The most common level of evidence was level IV. CONCLUSIONS: This study may help researchers to find out the important information on the classic articles and provides useful insights for the authors who want to publish their research in Injury. PMID- 29031827 TI - Development of a surgical site infection prediction model in orthopaedic trauma: The Denver Health Model. AB - BACKGROUND: The CDC's National Healthcare Safety Network's (NHSN) current risk adjustment model for surgical site infections (SSI) following open reduction internal fixation (ORIF) of long bone fractures is a suboptimal predictor of risk. We hypothesized that by including variables known to be associated with SSI following ORIF, we would develop a model that would increase the accuracy and predictability of SSI risk. METHODS: Patients who underwent ORIF of a long bone between January 1, 2012 and December 31, 2014 were included in the study (n=1543). Patient risk factors, injury risk factors and perioperative risk factors were considered in the development of this model. We developed a risk prediction model for SSI following ORIF and then applied this to a new dataset of ORIF to determine the expected number of infections. This was compared to the expected number of infections calculated using the NHSN risk adjusted model. RESULTS: The final multivariate model included age (odds ratio: 1.02, p value<0.001, 95% confidence interval: 1.00-1.04), lower leg fracture (2.63, 0.004, 1.40-4.93), open fracture (1.87, 0.07, 0.93-3.76), American Society of Anesthesiologists (ASA) (2.09, 0.02, 1.07-4.08) and history of methicillin resistant Staphylococcus aureus (MRSA), which was the most important predictor of infection (7.20, <0.001, 2.61-19.85). The c-index was 0.74 compared to 0.65 for the NHSN model, indicating that our model more accurate in estimating infection risk. When the developed model was used to predict the number of expected infections on a new dataset from 2015, 36.3 SSI were expected compared to 5.7 calculated by the NHSN model. CONCLUSIONS: The model that was developed uses five easily identifiable risk factors that result in a more accurate prediction of infection at our facility than the currently used model. LEVEL OF EVIDENCE: Prognostic and epidemiologic study, level III. PMID- 29031828 TI - Non-progressing cancer patients have persistent B cell responses expressing shared antibody paratopes that target public tumor antigens. AB - There is significant debate regarding whether B cells and their antibodies contribute to effective anti-cancer immune responses. Here we show that patients with metastatic but non-progressing melanoma, lung adenocarcinoma, or renal cell carcinoma exhibited increased levels of blood plasmablasts. We used a cell barcoding technology to sequence their plasmablast antibody repertoires, revealing clonal families of affinity matured B cells that exhibit progressive class switching and persistence over time. Anti-CTLA4 and other treatments were associated with further increases in somatic hypermutation and clonal family size. Recombinant antibodies from clonal families bound non-autologous tumor tissue and cell lines, and families possessing immunoglobulin paratope sequence motifs shared across patients exhibited increased rates of binding. We identified antibodies that caused regression of, and durable immunity toward, heterologous syngeneic tumors in mice. Our findings demonstrate convergent functional anti tumor antibody responses targeting public tumor antigens, and provide an approach to identify antibodies with diagnostic or therapeutic utility. PMID- 29031829 TI - Gain-of-function variants in NLRP1 protect against the development of diabetic kidney disease: NLRP1 inflammasome role in metabolic stress sensing? AB - Although inflammasome plays a well-known role in animal models of renal injury, limited studies in humans are available, and its participation in diabetic kidney disease (DKD) remains unknown. Aim of this study was to elucidate the contribution of inflammasome genetics in the development of DKD in type-1 diabetes (T1D). The association of functional variants in inflammasome genes with DKD was assessed by multivariate analysis in a retrospective and in a prospective cohort. NLRP1 rs2670660 and rs11651270 polymorphisms were significantly associated with a decrease risk to develop DKD (padj<0.01), and rs11651270 also with a lower risk of new renal events during follow-up (padj=0.01). Supporting these findings, diabetes metabolites (glycated albumin and high glucose) were able to modulate NLRP1 expression. This study is the first to suggest a protective role of NLRP1 in DKD, highlighting an emerging role of NLRP1 as a homeostatic factor against metabolic stress. PMID- 29031830 TI - Action observation facilitates motor cortical activity in patients with stroke and hemiplegia. AB - Motor imagery (MI) is a mental practice that reproduces the visual- and/or kinesthetic-modality brain activations accompanying movement. It is a useful rehabilitation technique as the affected motor cortex can be stimulated in patients with stroke and hemiplegia. However, most patients with stroke have difficulty with MI owing to advanced age and/or higher-cognitive dysfunction, thus impairing their ability to internally simulate the action. We therefore investigated whether action observation (AO), an alternative form of motor stimulation that works via the mirror-neuron system, could facilitate motor cortical activity in such patients. Combined AO and physical training of the observed actions has been reported to have a positive impact on motor deficits after stroke. Eleven patients with stroke and hemiplegia affecting the hand performed MI and AO with verbal and video instructions under 19 channels of electroencephalogram (EEG) recording. The event-related desynchronization (ERD) was measured as an electroencephalographic marker of motor cortical activity. The ERD power in the AO condition (30.0+/-5.0%) was significantly higher than that in the MI condition (12.2+/-3.9%). These results suggest that AO could be a good option for patients with stroke who have difficulty using MI to effectively stimulate and reestablish cortical-peripheral motor pathways. PMID- 29031831 TI - Large-scale retrieval for medical image analytics: A comprehensive review. AB - Over the past decades, medical image analytics was greatly facilitated by the explosion of digital imaging techniques, where huge amounts of medical images were produced with ever-increasing quality and diversity. However, conventional methods for analyzing medical images have achieved limited success, as they are not capable to tackle the huge amount of image data. In this paper, we review state-of-the-art approaches for large-scale medical image analysis, which are mainly based on recent advances in computer vision, machine learning and information retrieval. Specifically, we first present the general pipeline of large-scale retrieval, summarize the challenges/opportunities of medical image analytics on a large-scale. Then, we provide a comprehensive review of algorithms and techniques relevant to major processes in the pipeline, including feature representation, feature indexing, searching, etc. On the basis of existing work, we introduce the evaluation protocols and multiple applications of large-scale medical image retrieval, with a variety of exploratory and diagnostic scenarios. Finally, we discuss future directions of large-scale retrieval, which can further improve the performance of medical image analysis. PMID- 29031832 TI - Initial brain aging: heterogeneity of mitochondrial size is associated with decline in complex I-linked respiration in cortex and hippocampus. AB - Brain aging is accompanied by declining mitochondrial respiration. We hypothesized that mitochondrial morphology and dynamics would reflect this decline. Using hippocampus and frontal cortex of a segmental progeroid mouse model lacking Cockayne syndrome protein B (CSBm/m) and C57Bl/6 (WT) controls and comparing young (2-5 months) to middle-aged mice (13-14 months), we found that complex I-linked state 3 respiration (CI) was reduced at middle age in CSBm/m hippocampus, but not in CSBm/m cortex or WT brain. In hippocampus of both genotypes, mitochondrial size heterogeneity increased with age. Notably, an inverse correlation between heterogeneity and CI was found in both genotypes, indicating that heterogeneity reflects mitochondrial dysfunction. The ratio between fission and fusion gene expression reflected age-related alterations in mitochondrial morphology but not heterogeneity. Mitochondrial DNA content was lower, and hypoxia-induced factor 1alpha mRNA was greater at both ages in CSBm/m compared to WT brain. Our findings show that decreased CI and increased mitochondrial size heterogeneity are highly associated and point to declining mitochondrial quality control as an initial event in brain aging. PMID- 29031833 TI - Structure-based drug design for envelope protein E2 uncovers a new class of bovine viral diarrhea inhibitors that block virus entry. AB - Antiviral targeting of virus envelope proteins is an effective strategy for therapeutic intervention of viral infections. Here, we took a computer-guided approach with the aim of identifying new antivirals against the envelope protein E2 of bovine viral diarrhea virus (BVDV). BVDV is an enveloped virus with an RNA genome responsible for major economic losses of the cattle industry worldwide. Based on the crystal structure of the envelope protein E2, we defined a binding site at the interface of the two most distal domains from the virus membrane and pursued a hierarchical docking-based virtual screening search to identify small molecule ligands of E2. Phenyl thiophene carboxamide derivative 12 (PTC12) emerged as a specific inhibitor of BVDV replication from in vitro antiviral activity screening of candidate molecules, displaying an IC50 of 0.30 MUM against the reference NADL strain of the virus. Using reverse genetics we constructed a recombinant BVDV expressing GFP that served as a sensitive reporter for the study of the mechanism of action of antiviral compounds. Time of drug addition assays showed that PTC12 inhibited an early step of infection. The mechanism of action was further dissected to find that the compound specifically acted at the internalization step of virus entry. Interestingly, we demonstrated that similar to PTC12, the benzimidazole derivative 03 (BI03) selected in the virtual screen also inhibited internalization of BVDV. Furthermore, docking analysis of PTC12 and BI03 into the binding site revealed common interactions with amino acid residues in E2 suggesting that both compounds could share the same molecular target. In conclusion, starting from a targeted design strategy of antivirals against E2 we identified PTC12 as a potent inhibitor of BVDV entry. The compound can be valuable in the design of antiviral strategies in combination with already well-characterized polymerase inhibitors of BVDV. PMID- 29031835 TI - Metabolomic analysis of oxidative stress: Superoxide dismutase mutation and paraquat induced stress in Drosophila melanogaster. AB - Oxidative stress results in substantial biochemical and physiological perturbations in essentially all organisms. To determine the broad metabolic effects of oxidative stress, we have quantified the response in Drosophila melanogaster to both genetically and environmentally derived oxidative stress. Flies were challenged with loss of Superoxide dismutase activity or chronic or acute exposure to the oxidizing chemical paraquat. Metabolic changes were then quantified using a recently developed chemical isotope labeling (CIL) liquid chromatography - mass spectrometry (LC-MS) platform that targets the carboxylic acid and amine/phenol submetabolomes with high metabolic coverage. We discovered wide spread changes in both submetabolomes in response to all three types of stresses including: changes to the urea cycle, tryptophan metabolism, porphyrin metabolism, as well as a series of metabolic pathways involved in glutathione synthesis. Strikingly, while there are commonalities across the conditions, all three resulted in different metabolomic responses, with the greatest difference between the genetic and environmental responses. Genetic oxidative stress resulted in substantially more widespread effects, both in terms of the percent of the metabolome altered, and the magnitude of changes in individual metabolites. Chronic and acute environmental stress resulted in more similar responses although both were distinct from genetic stress. Overall, these results indicate that the metabolomic response to oxidative stress is complex, reaching across multiple metabolic pathways, with some shared features but with more features unique to different, specific stressors. PMID- 29031836 TI - Optofluidic time-stretch quantitative phase microscopy. AB - Innovations in optical microscopy have opened new windows onto scientific research, industrial quality control, and medical practice over the last few decades. One of such innovations is optofluidic time-stretch quantitative phase microscopy - an emerging method for high-throughput quantitative phase imaging that builds on the interference between temporally stretched signal and reference pulses by using dispersive properties of light in both spatial and temporal domains in an interferometric configuration on a microfluidic platform. It achieves the continuous acquisition of both intensity and phase images with a high throughput of more than 10,000 particles or cells per second by overcoming speed limitations that exist in conventional quantitative phase imaging methods. Applications enabled by such capabilities are versatile and include characterization of cancer cells and microalgal cultures. In this paper, we review the principles and applications of optofluidic time-stretch quantitative phase microscopy and discuss its future perspective. PMID- 29031834 TI - Dysregulation of neurotrophin signaling in the pathogenesis of Alzheimer disease and of Alzheimer disease in Down syndrome. AB - Neurotrophic factors, including the members of the neurotrophin family, play important roles in the development and maintenance of the nervous system. Trophic factor signals must be transmitted over long distances from axons and dendrites to the cell bodies of neurons. A mode of signaling well suited to the challenge of robust long distance signaling is the signaling endosome. We review the biology of signaling endosomes and the "signaling endosome hypothesis". Evidence for disruption of signaling endosome function in disorders of the nervous system is also reviewed. Changes in endosome structure in Alzheimer disease (AD) and Down syndrome (DS) are present early in these disorders. Data for the APP products responsible are reviewed and the consequent changes in signaling from endosomes discussed. We conclude by pointing to the need for additional studies to explore the biology of signaling endosomes in normal neurons and to elucidate their role in the pathogenesis of neurodegeneration. PMID- 29031837 TI - Impaired contrast sensitivity at low spatial frequency in cannabis users with early onset. AB - The regular use of cannabis generates pronounced cognitive disorders, especially in users who begin before the age of 15-16. However, less is known about the impact of regular cannabis on visual function, especially in the case of early onset. Cannabinoid receptors (CB1) are expressed in areas of the visual system, like the thalamus and primary cortex, which might originate sensory disorders. Hence, we measured contrast sensitivity (CS) in three groups, i.e. cannabis users with late onset of cannabis use (after 16 years old), cannabis users with early onset". We used a constant method which allowed us to control for biased responses. Stimuli were presented at high and low spatial frequencies and in both static and dynamic conditions (8Hz). As contrast sensitivity is measured behaviorally based on an explicit response and could thus be impacted by attentional or vigilance disorders, participants' attention and vigilance were carefully monitored by means of the D2 test, CPT-AX for attention and pupillography for vigilance. Cannabis users with early onset were significantly impaired only at low spatial frequency. This effect was independent of response bias, vigilance and attention. These results show for the first time that early cannabis use impacts contrast sensitivity at low spatial frequency. PMID- 29031838 TI - Does Attorney Advertising Influence Patient Perceptions of Pelvic Mesh? AB - OBJECTIVE: To measure the relative influence of attorney advertising on patient perceptions of pelvic mesh compared with a history of surgery and a first urology visit. MATERIALS AND METHODS: A 52-item survey was administered to 170 female patients in 2 urology offices between 2014 and 2016. Multiple survey items were combined to form scales for benefit and risk perceptions of pelvic mesh, perceptions of the advertising, attitudes toward pelvic mesh, and knowledge of pelvic mesh and underlying medical conditions. Data were analyzed using hierarchical linear regression models. RESULTS: Exposure to attorney advertising was quite high; 88% reported seeing a mesh-related attorney advertisement in the last 6 months. Over half of patients reported seeing attorney advertisements more than once per week. A history of prior mesh implant surgery was the strongest predictor of benefit and risk perceptions of pelvic mesh. Exposure to attorney advertising was associated with higher risk perceptions but did not significantly affect perceptions of benefits. Past urologist visits increased perceptions of benefits but had no effect on risk perceptions. CONCLUSION: Attorney advertising appears to have some influence on risk perceptions, but personal experience and discussions with a urogynecologist or urologist also influence patient perceptions. Implications, limitations, and future research are discussed. PMID- 29031839 TI - Utilization of Postpenile Surgery Illustrated Healing Atlas: A Comparative Study. AB - OBJECTIVE: To determine the effect of the postpenile surgery illustrated healing atlas on caregivers' anxiety levels pre- and postoperatively, the frequency of family's postoperative communication with the urology care team, and the number of unplanned emergency room (ER) return for wound checks. METHODS: A prospective cohort enrolled children who underwent penile surgeries (distal hypospadias repair and phalloplasty) with no concomitant procedures from December 2016 to June 2017. A 6-item short-form Spielberger State-Trait Anxiety Inventory (STAI) was used to determine baseline and postoperative anxiety levels of the caregivers. Two groups were created: caregivers who did not view the illustrated atlas vs caregivers who were shown the atlas. Baseline characteristics and demographics were compared, along with caregiver's pre- to postoperative anxiety level difference, frequency of postoperative communication, and number of unplanned ER return for wound checks. RESULTS: Fifty-four patients were enrolled with 27 families in each group. Baseline characteristics and demographics were comparable with no significant differences. The assessment of the pre- to postoperative anxiety levels in both groups showed no significant differences (median difference -5 [interquartile range -8 to -5] vs -5 [interquartile range 8 to -4], P = .94). Although no differences were noted for ER-return rates between the groups (18% vs 11.1%, P = .704), significantly less postoperative calls and e-mails were noted among families who received or viewed the postpenile surgery illustrated healing atlas (51.9% vs 11.1%, P = .003). CONCLUSION: The utilization of a postpenile surgery illustrated healing atlas as part of the postoperative support provided to families was able to decrease postoperative calls and e-mails. PMID- 29031840 TI - Urethral Reconstruction in Aging Male Patients. AB - OBJECTIVE: To report stricture characteristics, complications, and treatment outcomes among elderly men undergoing urethral reconstruction. MATERIALS AND METHODS: A retrospective review of urethroplasty cases and outcomes by a single surgeon from 2007 to 2014 was performed. Men were stratified by decade of life at time of surgery (<50, 50-59, 60-69, >=70 years). Individuals with a history of hypospadias were excluded. RESULTS: Among 514 urethroplasty procedures, 184 (36%) were evaluated in men >=60 years. When stratified by decade of life, elderly men were more likely to have a history of radiation therapy (0% vs 5% vs 19% vs 50%; P <.0001) and experience treatment failure (6% vs 16% vs 20% vs 26%; P <.0001) during follow-up (median 63 months). The estimated 60-month stricture recurrence free survival decreased with increasing age at time of urethroplasty (94% vs 89% vs 78% vs 74%; P <.0001). In patients >=60 years, success rates of anastomotic, substitution, and urethrostomy techniques were 80%, 65%, and 88%; anastomotic urethroplasty success improved after excluding those patients with prior radiation. After surgery, elderly were more likely to have voiding dysfunction and <90-day Clavien >=3 complications requiring endoscopic intervention. On multivariable analysis, advancing age per decade beyond 50 years was independently associated with risk of urethroplasty failure-50-59 (hazard ratio [HR] 2.39; P = .02), 60-69 (HR 2.80; P = .009), and >=70 (HR 3.43; P = .003). CONCLUSION: Urethroplasty is safe and effective in the majority of elderly men. Early reconstructive intervention with anastomotic urethroplasty or urethrostomy techniques may optimize outcomes. Voiding dysfunction and prostatic obstruction are common in this population and should be pursued as clinically indicated. PMID- 29031841 TI - Management of Postradical Prostatectomy Urinary Incontinence: A Review. AB - Postprostatectomy urinary incontinence has a significant impact on the quality of life of patients who undergo radical prostatectomy. Stress and overflow incontinence may result from the procedure, with sphincteric incompetence and detrusor hypocontractility implicating their development, respectively. In many cases, treatment begins with conservative approaches, including pelvic floor muscle training or biofeedback. Pharmacotherapy can be used to treat overactive bladder. For stress incontinence, transurethral bulking agents are utilized in select patients; however, artificial urinary sphincter and male slings are the most efficacious options with good success rates. In this review, the various treatment modalities are critically discussed with special emphasis on safety and efficacy. PMID- 29031842 TI - Ribosome Profiling Reveals Genome-wide Cellular Translational Regulation upon Heat Stress in Escherichia coli. AB - Heat shock response is a classical stress-induced regulatory system in bacteria, characterized by extensive transcriptional reprogramming. To compare the impact of heat stress on the transcriptome and translatome in Escherichia coli, we conducted ribosome profiling in parallel with RNA-Seq to investigate the alterations in transcription and translation efficiency when E. coli cells were exposed to a mild heat stress (from 30 degrees C to 45 degrees C). While general changes in ribosome footprints correlate with the changes of mRNA transcripts upon heat stress, a number of genes show differential changes at the transcription and translation levels. Translation efficiency of a few genes that are related to environment stimulus response is up-regulated, and in contrast, some genes functioning in mRNA translation and amino acid biosynthesis are down regulated at the translation level in response to heat stress. Moreover, our ribosome occupancy data suggest that in general ribosomes accumulate remarkably in the starting regions of ORFs upon heat stress. This study provides additional insights into bacterial gene expression in response to heat stress, and suggests the presence of stress-induced but yet-to-be characterized cellular regulatory mechanisms of gene expression at translation level. PMID- 29031845 TI - Tackling viral haemorrhagic fever in Africa. PMID- 29031843 TI - RNA Regulations and Functions Decoded by Transcriptome-wide RNA Structure Probing. AB - RNA folds into intricate structures that are crucial for its functions and regulations. To date, a multitude of approaches for probing structures of the whole transcriptome, i.e., RNA structuromes, have been developed. Applications of these approaches to different cell lines and tissues have generated a rich resource for the study of RNA structure-function relationships at a systems biology level. In this review, we first introduce the designs of these methods and their applications to study different RNA structuromes. We emphasize their technological differences especially their unique advantages and caveats. We then summarize the structural insights in RNA functions and regulations obtained from the studies of RNA structuromes. And finally, we propose potential directions for future improvements and studies. PMID- 29031846 TI - Xanthoma disseminatum. PMID- 29031844 TI - Alternative Polyadenylation: Methods, Findings, and Impacts. AB - Alternative polyadenylation (APA), a phenomenon that RNA molecules with different 3' ends originate from distinct polyadenylation sites of a single gene, is emerging as a mechanism widely used to regulate gene expression. In the present review, we first summarized various methods prevalently adopted in APA study, mainly focused on the next-generation sequencing (NGS)-based techniques specially designed for APA identification, the related bioinformatics methods, and the strategies for APA study in single cells. Then we summarized the main findings and advances so far based on these methods, including the preferences of alternative polyA (pA) site, the biological processes involved, and the corresponding consequences. We especially categorized the APA changes discovered so far and discussed their potential functions under given conditions, along with the possible underlying molecular mechanisms. With more in-depth studies on extensive samples, more signatures and functions of APA will be revealed, and its diverse roles will gradually heave in sight. PMID- 29031847 TI - Department of Error. PMID- 29031849 TI - Investigation of factors affecting the stability of lysozyme spray dried from ethanol-water solutions. AB - Formulation composition and processing conditions can be adjusted to enhance the structural integrity as well as the bioactivity of proteins in the spray drying process. In this study, lysozyme was chosen as a model pharmaceutical protein to study these aspects when spray drying from water-ethanol mixtures. The effect of formulation additives (trehalose, Tween 20 and phosphate-buffered saline) and processing conditions (inlet temperature and storage time of lysozyme in the feed solution before the spray drying process) on the protein bioactivity was investigated. The results showed that the bioactivities of spray dried lysozyme with these additives were about 5-10% higher than that without additives. The bioactivity of the spray dried lysozyme was found to increase with a decrease in the inlet temperature from 130 degrees C to 80 degrees C, with similar findings when shortening the storage time of the feed solutions prior to spray drying. Fourier Transform Infrared (FTIR) and Circular Dichroism (CD) results showed that the native structures of lysozyme were largely restored upon reconstitution of the spray dried powder in water after the spray drying process. This suggests that the bioactivity of lysozyme could be preserved adequately by optimization of both the formulation composition and process conditions even when spray drying from a water-ethanol mixture. PMID- 29031850 TI - Nucleic acid loading and fluorescent labeling of isolated extracellular vesicles requires adequate purification. AB - Extracellular vesicles (EVs) are nanosized vesicular structures released by cells to communicate with one another. The growing interest in the (patho)physiological function and potential pharmaceutical application of these vesicles is accompanied by a vast number of new research groups entering this research field and a plethora of different protocols to separate EVs from non-vesicular components. This lack of uniformity often generates conflicting or difficult-to compare results. Here we provide a comparative analysis of different EV isolation strategies, discussing the purity of the final isolate and highlighting the importance of purity on downstream experimental readouts. First, we show that ultracentrifugation (UC) of B16F10 melanoma cell-derived conditioned medium co purifies proteins or protein complexes with nuclease activity. Such contaminants should be taken into account when aiming to apply EVs as delivery carriers for exogenous nucleic acids. Second, three commonly used purification strategies (i.e. precipitation, UC and density-gradient centrifugation) were evaluated for their ability to remove non-incorporated fluorescent dye (i.e. the lipophilic PKH67 dye), important when probing EV interactions with cells. For both types of impurities, endogenous and exogenous, density gradient purification outperforms the other evaluated methods. Overall, these results demonstrate that the implementation of stringent purification protocols and adequate controls is of pivotal importance to draw reliable conclusions from downstream experiments performed with EV isolates. PMID- 29031848 TI - Local, national, and regional viral haemorrhagic fever pandemic potential in Africa: a multistage analysis. AB - BACKGROUND: Predicting when and where pathogens will emerge is difficult, yet, as shown by the recent Ebola and Zika epidemics, effective and timely responses are key. It is therefore crucial to transition from reactive to proactive responses for these pathogens. To better identify priorities for outbreak mitigation and prevention, we developed a cohesive framework combining disparate methods and data sources, and assessed subnational pandemic potential for four viral haemorrhagic fevers in Africa, Crimean-Congo haemorrhagic fever, Ebola virus disease, Lassa fever, and Marburg virus disease. METHODS: In this multistage analysis, we quantified three stages underlying the potential of widespread viral haemorrhagic fever epidemics. Environmental suitability maps were used to define stage 1, index-case potential, which assesses populations at risk of infection due to spillover from zoonotic hosts or vectors, identifying where index cases could present. Stage 2, outbreak potential, iterates upon an existing framework, the Index for Risk Management, to measure potential for secondary spread in people within specific communities. For stage 3, epidemic potential, we combined local and international scale connectivity assessments with stage 2 to evaluate possible spread of local outbreaks nationally, regionally, and internationally. FINDINGS: We found epidemic potential to vary within Africa, with regions where viral haemorrhagic fever outbreaks have previously occurred (eg, western Africa) and areas currently considered non-endemic (eg, Cameroon and Ethiopia) both ranking highly. Tracking transitions between stages showed how an index case can escalate into a widespread epidemic in the absence of intervention (eg, Nigeria and Guinea). Our analysis showed Chad, Somalia, and South Sudan to be highly susceptible to any outbreak at subnational levels. INTERPRETATION: Our analysis provides a unified assessment of potential epidemic trajectories, with the aim of allowing national and international agencies to pre-emptively evaluate needs and target resources. Within each country, our framework identifies at-risk subnational locations in which to improve surveillance, diagnostic capabilities, and health systems in parallel with the design of policies for optimal responses at each stage. In conjunction with pandemic preparedness activities, assessments such as ours can identify regions where needs and provisions do not align, and thus should be targeted for future strengthening and support. FUNDING: Paul G Allen Family Foundation, Bill & Melinda Gates Foundation, Wellcome Trust, UK Department for International Development. PMID- 29031851 TI - Constitutive Ret signaling leads to long-lasting expression of amphetamine induced place conditioning via elevation of mesolimbic dopamine. AB - Addictive drugs enhance dopamine release in the striatum, which can lead to compulsive drug-seeking after repeated exposure. Glial cell line-derived neurotrophic factor (GDNF) is an important regulator of midbrain dopamine neurons, and may play a mechanistic role in addiction-related behaviors. To elucidate the components of GDNF-signaling that contribute to addiction-related behaviors of place preference and its extinction, we utilized two genetically modified GDNF mouse models in an amphetamine-induced conditioned place preference (CPP) paradigm and evaluated how the behavioral findings correlate with dopamine signaling in the dorsal and ventral striatum. We utilized two knock-in mouse strains to delineate contributions of GDNF and Ret signaling using MEN2B mice (constitutively active GDNF receptor Ret), and GDNF hypermorphic mice (enhanced endogenous GDNF expression). The duration of amphetamine-induced CPP was greatly enhanced in MEN2B mice, but not in the GDNF hypermorphic mice. The enhanced duration of CPP was correlated with increased tyrosine hydroxylase (TH) expression and dopamine content in the ventral striatum. Together, our results suggest that downstream components of GDNF signaling, in this case Ret, may mediate persistent drug-seeking behavior through increased TH expression and dopamine levels in the mesolimbic dopamine neurons. PMID- 29031853 TI - Co-expression modules construction by WGCNA and identify potential prognostic markers of uveal melanoma. AB - Uveal melanoma is an aggressive cancer which has a high percentage recurrence and with a worse prognosis. Identify the potential prognostic markers of uveal melanoma may provide information for early detection of recurrence and treatment. RNA sequence data of uveal melanoma and patient clinic traits were obtained from The Cancer Genome Atlas (TCGA) database. Co-expression modules were built by weighted gene co -expression network analysis (WGCNA) and applied to investigate the relationship underlying modules and clinic traits. Besides, functional enrichment analysis was performed on these co-expression genes from interested modules. First, using WGCNA, identified 21 co-expression modules were constructed by the 10975 genes from the 80 human uveal melanoma samples. The number of genes in these modules ranged from 42 to 5091. Found four co -expression modules significantly correlated with three clinic traits (status, recurrence and recurrence Time). Module red, and purple positively correlated with patient's life status and recurrence Time. Module green positively correlates with recurrence. The result of functional enrichment analysis showed that the module magenta was mainly enriched genetic material assemble processes, the purple module was mainly enriched in tissue homeostasis and melanosome membrane and the module red was mainly enriched metastasis of cell, suggesting its critical role in the recurrence and development of the disease. Additionally, identified the hug gene (top connectivity with other genes) in each module. The hub gene SLC17A7, NTRK2, ABTB1 and ADPRHL1 might play a vital role in recurrence of uveal melanoma. Our findings provided the framework of co-expression gene modules of uveal melanoma and identified some prognostic markers might be detection of recurrence and treatment for uveal melanoma. PMID- 29031852 TI - Inhibition of Cdk5 rejuvenates inhibitory circuits and restores experience dependent plasticity in adult visual cortex. AB - Cyclin-dependent kinase 5 (Cdk5) acts as an essential modulator for neural development and neurological disorders. Here we show that Cdk5 plays a pivotal role in modulating GABAergic signaling and the maturation of visual system. In adult mouse primary visual cortex, Cdk5 formed complex with the GABA synthetic enzyme glutamate decarboxylase GAD67, but not with GAD65. In addition to enhancement in the surface level of NR2B-containing NMDA receptors, inhibition of Cdk5 reduced the protein levels of GADs and Otx2, while leaving intact the expression of vesicular GABA transporter and subunits of GABAA or AMPA receptors. Whole-cell patch-clamp recording in layer II/III pyramidal neurons revealed a decrease in the frequency of miniature inhibitory postsynaptic current (mIPSC). Consequently, pharmacological inhibition and genetic knockdown of Cdk5 in adult mice led to a restoration of juvenile-like ocular dominance plasticity in vivo and long-term synaptic potential in layer II/III induced by white matter stimulation in vitro. Interestingly, we did not observe an alteration of perineuronal nets of extracellular matrix, but a reinstatement of the capability to evoke long-term depression at inhibitory synapses (iLTD), which depended on presynaptic endocannabinoid receptors and was a sign of the rejuvenated GABAergic synapses. Enhancement of GABA signaling by diazepam impeded ocular dominance plasticity rescued by Cdk5 inhibition. These results thus suggest that a physiological role of Cdk5 in visual cortex is to consolidate and stabilize neural circuits through controlling GABAergic signaling. PMID- 29031854 TI - ANGPTL-4 induces diabetic retinal inflammation by activating Profilin-1. AB - Diabetic retinopathy (DR), the most common cause of irreversible blindness in working-age adults, results in central vision loss that is caused by microvascular damage to the inner lining of the back of the eye, the retina. The aim of this work was to assess the temporal relationships between angiopoietin like protein-4 (ANGPTL-4), a novel adipocytokine factor, and diabetic retinal inflammation and microvascular dysfunction. The downstream pathway(s) and upstream mediator(s) of ANGPTL-4 were then determined under high glucose (HG) conditions. Diabetic rats and control animals were randomly assigned to receive hypoxia inducible factor-1 alpha (HIF-1alpha) blockade (doxorubicin or shRNA) or vehicle for 8 weeks. Human retinal microvascular endothelial cells (HRMECs) were incubated with normal or high glucose, with or without blockade or recombinant proteins, for ANGPTL-4, HIF-1alpha, and vascular endothelial growth factor (VEGF). The levels of ANGPTL-4, profilin-1, HIF-1alpha, VEGF, interleukin 1 beta (IL-1beta), IL-6, and intercellular adherent molecule 1 (ICAM-1) in the rat retinas and HRMEC extracts were examined by Western blotting and real-time RT PCR. The levels of ANGPTL-4, profilin-1, HIF-1alpha, and VEGF protein and mRNA were significantly higher in the diabetic rats and HG-exposed HRMECs. ANGPTL-4 was a potent modulator of increased inflammation, permeability, and angiogenesis via activation of the profilin-1 signaling pathway. Our results showed that ANGPTL-4 upregulation was induced by HG, which was dependent on HIF-1alpha activation that was also triggered by HG, both in vivo and in vitro. Our results suggest that targeting ANGPTL-4, alone or in combination with profilin-1, may be an effective therapeutic strategy and diagnostic screening biomarker for proliferative diabetic retinopathy and other vitreous-retinal inflammatory diseases. PMID- 29031855 TI - Furin deficiency in myeloid cells leads to attenuated revascularization in a mouse-model of oxygen-induced retinopathy. AB - Ischemic retinopathy is a vision-threatening disease associated with chronic retinal inflammation and hypoxia leading to abnormal angiogenesis. Furin, a member of the proprotein convertase family of proteins, has been implicated in the regulation of angiogenesis due to its essential role in the activation of several angiogenic growth factors, including vascular endothelial growth factor-C (VEGF-C), VEGF-D and transforming growth factor - beta (TGF- beta). In the present study, we evaluated expression of furin in the retina and its role in retinal angiogenesis. As both inflammation and hypoxia contribute to angiogenesis, the role of furin was evaluated using myeloid-cell specific furin knockout (KO) mice (designated LysMCre-fur(fl/fl)) both in developmental retinal angiogenesis as well as in hypoxia-driven angiogenesis using the oxygen-induced retinopathy (OIR) model. In the retina, furin expression was detected in endothelial cells, macrophages and, to some extent, in neurons. The rate of angiogenesis was not different in LysMCre-fur(fl/fl) mice when compared to their wild-type littermates during development. In the OIR model, the revascularization of retina was significantly delayed in LysMCre-fur(fl/fl) mice compared to their wild-type littermates, while there was no compensatory increase in the preretinal neovascularization in LysMCre-fur(fl/fl) mice. These results demonstrate that furin expression in myeloid cells plays a significant role in hypoxia-induced angiogenesis in retina. PMID- 29031857 TI - Defining Renal Neoplastic Disease, One Cell at a Time: Mass Cytometry, a New Tool for the Study of Kidney Biology and Disease. PMID- 29031856 TI - Relationship between Sigma-1 receptor and BDNF in the visual system. AB - Glaucoma is an incurable optic neuropathy characterized by dysfunction and death of retinal ganglion cells (RGCs). Brain derived neurotrophic factor (BDNF) is an essential neurotrophin that supports RGC function and survival. Despite BDNF's importance, our knowledge of molecular mechanisms that modulate BDNF processing and secretion is incomplete. Sigma-1 receptor (S1R) is associated with increased BDNF in hippocampus and with BDNF secretion by brain-derived astrocytes and neuronal cell lines. Much less is known about the relationship between S1R and BDNF in the visual system. Here, we examine how S1R activation and deletion alter expression of mature BDNF (mBDNF) and proBDNF in retina and cultured optic nerve head (ONH) astrocytes. For S1R activation, the S1R agonist (+)-pentazocine (PTZ, 0.5 mg/kg) was administered by intraperitoneal injection to C57BL/6J mice, 3 times per week, for 5 weeks. Expression of proBDNF and mBDNF was also examined in S1R knockout and age-matched C57BL/6J mice. In vitro, cultured ONH astrocytes were treated with 3 MUM PTZ for 24 h followed by collection of media and ONH astrocyte lysates. Results showed that treatment with (+)-PTZ increased mBDNF protein in both retina and hippocampus. In contrast, S1R deletion was associated with retinal mBDNF deficits. In ONH astrocytes S1R agonist (+)-PTZ significantly increased levels of secreted BDNF and proBDNF in cell lysates. These findings support a role for S1R in the modulation of BDNF levels within the retina and optic nerve head. Treatment with S1R agonists might provide benefit in diseases such as glaucoma by increasing BDNF levels from endogenous sources. PMID- 29031858 TI - Involvement of integrin beta1/FAK signaling in the analgesic effects induced by glial cell line-derived neurotrophic factor in neuropathic pain. AB - Treatment of neuropathic pain (NP) continues to be a clinical challenge and the underlying mechanisms of NP remain elusive. More evidence suggests that glial cell line-derived neurotrophic factor (GDNF) has potent anti-nociceptive effects on NP, but the underlying mechanisms are still largely unknown. Recent data have shown that integrin beta1 plays an important part in NP induction, and that the activity of integrin beta1 signaling is associated with the phosphorylation of the conserved threonines in the cytoplasmic domain and recruitment of focal adhesion kinase (FAK) to the integrin beta1 tail and phosphorylation. We assessed the effect of GDNF on integrinbeta1/FAK signaling in NP states. Immunostaining results showed that integrin beta1 was mainly observed in the superficial dorsal horn in the spinal cord of rats, and was mostly expressed in intrinsic neurons. Expression of p-integrin beta1 and the phosphorylation of integrin beta1 associated FAK, but not integrin beta1 itself, was up-regulated after chronic constriction injury (CCI), which could be reversed by GDNF, and the effect of GDNF on integrin beta1/FAK signaling was inhibited by pre-treatment with RET function-blocking antibody (RET Ab). Moreover, pre-treatment with RET Ab could antagonize the effect of GDNF on inhibiting the NP induced by CCI. These data suggest that GDNF can regulate integrin beta1 activity via a RET-related mechanism. PMID- 29031859 TI - Neuroprotective Strategies in Neonatal Brain Injury. PMID- 29031860 TI - Children as Biomarker Orphans: Progress in the Field of Pediatric Biomarkers. PMID- 29031861 TI - The Benefits of Early Oral Nutrition in Mild Acute Pancreatitis. AB - OBJECTIVE: To determine whether early patient-directed oral nutrition in children with mild acute pancreatitis decreases the length of hospitalization without increasing complications. STUDY DESIGN: Hospitalized patients aged 2-21 years of age who met the criteria for acute pancreatitis based on the Revised Atlanta Classification were enrolled prospectively and allowed to eat by mouth at their discretion (patient-directed nutrition [PDN]). These patients were compared with a retrospective cohort of children who were allowed to eat based on traditional practices (treatment team-directed nutrition [TTDN]). Outcomes included length of hospitalization, time nil per os (NPO), and complications within 30 days of discharge. RESULTS: The study included 30 patients in the PDN group and 92 patients in the TTDN group. Patients in the PDN group had a median length of stay of 48.5 hours (IQR 37-70 hours) compared with 93 hours (IQR 52-145 hours) in the TTDN group (P < .0001). Patients were NPO for a median of 14 hours (IQR 7-19.5 hours) in the PDN group compared with 34 hours (IQR 19.3-55 hours) in the TTDN group (P < .0001). No patients in the PDN group developed complications within 30 days of discharge. CONCLUSION: Early patient-directed oral nutrition in mild acute pancreatitis was well tolerated and resulted in decreased length of NPO status and hospitalization with no obvious complications. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov: NCT01423786. PMID- 29031862 TI - PFAPA Syndrome in a Population with Endemic Familial Mediterranean Fever. AB - We reviewed the medical records of patients with periodic fever, aphthosis, pharyngitis, and adenitis (PFAPA) to investigate the clinical course, treatment response, and association with MEFV gene mutation. Familial Mediterranean fever should be considered in patients with PFAPA who do not respond to adenotonsillectomy. PMID- 29031863 TI - Validation of healthcare-associated infection surveillance in smaller Australian hospitals. AB - A validation study was conducted in smaller (<100 acute beds) Victorian hospitals to evaluate case detection for Staphylococcus aureus bloodstream (SAB), meticillin-resistant S. aureus (MRSA) and vancomycin-resistant enterococci (VRE) infections. Overall, 142 infections were identified in 20 hospitals. For routine surveillance of SAB events, sensitivity was 74.4% and specificity was 100.0%. For MRSA infections, sensitivity was 47.5% and specificity was 90.9%. All confirmed VRE infections were reported correctly. Of unreported SAB and MRSA infections, 80% (N = 16) and 83.9% (N = 26) were community-associated infections, respectively. Future programme refinements include targeted education to ensure appropriate application of case definitions, particularly those including community onset. PMID- 29031864 TI - Bloodstream infections following different types of surgery in a Finnish tertiary care hospital, 2009-2014. AB - The risk and outcome of bloodstream infections (BSIs) were evaluated following surgery. BSIs were identified in Helsinki University Hospital during 2009-2014 as part of the national surveillance. Of 711 BSIs identified, 51% were secondary and 49% primary. The rate was highest after cardiovascular surgery (8.7 per 1000 procedures) and lowest after gynaecologic (1.0 per 1000). Surgical site infection was the most frequent source of secondary BSIs (34%) and 45% of primary BSIs were central-line-associated. The 28-day case fatality ranged from zero in gynaecology/obstetrics to 21% in cardiovascular surgery. Besides BSIs related to surgical site infections, half of BSIs were primary, providing additional foci for prevention. PMID- 29031865 TI - A neuropsychologist's view: Outcome after RF-ablation for mTLE. AB - Concern about postoperative worsening of cognitive functions after temporal lobe epilepsy surgery is an important issue. In this article we review our data on neuropsychological outcome after radiofrequency (RF) ablation of amygdalohippocampal complex (AHC). On a group level we found initial improvement in intelligence domains and unchanged memory scores one year after the surgery. During longitudinal follow-up, we found improvement in both intellectual and memory domains. This improvement was most pronounced up to two years after surgery. On an individual level, no patient worsened in any intellectual domain and most patients improved in memory. We hypothesize that this favorable outcome may be a consequence of minimization of collateral damage and incomplete destruction of target structures. We also summarize our experience with psychiatric complications of the procedure. PMID- 29031866 TI - Connectivity changes after laser ablation: Resting-state fMRI. AB - Resting-state functional magnetic resonance imaging (rsfMRI) is emerging as a useful tool in the multimodal assessment of patients with epilepsy. In pediatric patients who cannot perform task-based fMRI, rsfMRI may present an adjunct and alternative. Although changes in brain activation during task-based fMRI have been described after surgery for epilepsy, there is limited data on the role of postoperative rsfMRI. In this short review, we discuss the role of postoperative rsfMRI after laser ablation of seizure foci. By establishing standardized anesthesia protocols and imaging parameters, we have been able to perform serial rsfMRI at postoperative follow-up. The development of in-house software that can merge rsfMRI images to surgical navigation systems has allowed us to enhance the clinical applications of this technique. Resting-state fMRI after laser ablation has the potential to identify changes in connectivity, localize new seizure foci, and guide antiepileptic therapy. In our experience, rsfMRI complements conventional MR imaging and task-based fMRI for the evaluation of patients with seizure recurrence after laser ablation, and represents a potential noninvasive biomarker for functional connectivity. PMID- 29031867 TI - Influenza is more common than Middle East Respiratory Syndrome Coronavirus (MERS CoV) among hospitalized adult Saudi patients. AB - BACKGROUND: Since the initial description of Middle East Respiratory Syndrome Coronavirus (MERS-CoV), we adopted a systematic process of screening patients admitted with community acquired pneumonia. Here, we report the result of the surveillance activity in a general hospital in Saudi Arabia over a four year period. MATERIALS AND METHODS: All admitted patients with community acquired pneumonia from 2012 to 2016 were tested for MERS-CoV. In addition, testing for influenza viruses was carried out starting April 2015. RESULTS: During the study period, a total of 2657 patients were screened for MERS-CoV and only 20 (0.74%) tested positive. From January 2015 to December 2016, a total of 1644 patients were tested for both MERS-CoV and influenza. None of the patients tested positive for MERS-CoV and 271 (16.4%) were positive for influenza. The detected influenza viruses were Influenza A (107, 6.5%), pandemic 2009 H1N1 (n = 120, 7.3%), and Influenza B (n = 44, 2.7%). Pandemic H1N1 was the most common influenza in 2015 with a peak in peaked October to December and influenza A other than H1N1 was more common in 2016 with a peak in August and then October to December. CONCLUSIONS: MERS-CoV was a rare cause of community acquired pneumonia and other viral causes including influenza were much more common. Thus, admitted patients are potentially manageable with Oseltamivir or Zanamivir therapy. PMID- 29031868 TI - Prevalence and Risk Factors for Chronic Venous Disease in the General Russian Population. AB - OBJECTIVE/BACKGROUND: The aim was to establish the prevalence of chronic venous disease (CVD) and its risk factors in the general population. METHODS: This was a population based, cross sectional study. In total, 703 residents aged > 18 years from the rural community of Kryukovo (Central Russia) were enrolled. Medical history was taken and clinical examination performed, documenting venous signs/symptoms. The CEAP classification of the most affected limb was used. Duplex ultrasound was performed to register morphological changes and reflux in deep and superficial veins. RESULTS: There were 63% women and 37% men (mean age 53.5 years). CVD was found in 69.3%. Of all participants 4.7% were C0S and 34.3% were C1. Chronic venous insufficiency (C3-C6) was found in 8.2% and venous ulcers (C5-C6) in 1.1%. Venous pain, heaviness, fatigue, itching, and the sensation of swelling were documented in 14.8%, 36.3%, 32.8%, 7.0% and 29.1% of patients respectively. Family history was the significant risk factor for both CVD (hazard ratio [HR] 1.3) and primary varicose vein disease (HR 1.6; p < .01). Female sex was a risk factor only for CVD (HR 1.3; p < .01) but not for varicose veins. Age was a risk factor for CVD (HR 1.01) and for varicose veins (HR 1.02; p < .01). For women, number of births (HR 1.05; p < .05) and menopause (HR 1.3; p < .01) were risk factors for CVD. Menopause was a risk factor for varicose veins (HR 2.0; p < .05). CONCLUSION: This study provides data on the prevalence of CVD, venous abnormalities and risk factors in Russia. The results contribute to already established data, giving a more complete outlook on the global prevalence of CVD. PMID- 29031869 TI - HashGO: hashing gene ontology for protein function prediction. AB - Gene ontology (GO) is a standardized and controlled vocabulary of terms that describe the molecular functions, biological roles and cellular locations of proteins. GO terms and GO hierarchy are regularly updated as the accumulated biological knowledge. More than 50,000 terms are included in GO and each protein is annotated with several or dozens of these terms. Therefore, accurately predicting the association between proteins and massive GO terms is rather challenging. To accurately predict the association between massive GO terms and proteins, we proposed a method called Hashing GO for protein function prediction (HashGO in short). HashGO firstly adopts a protein-term association matrix to store available GO annotations of proteins. Then, it tailors a graph hashing method to explore the underlying structure between GO terms and to obtain a series of hash functions to compress the high-dimensional protein-term association matrix into a low-dimensional one. Next, HashGO computes the semantic similarity between proteins based on Hamming distance on that low-dimensional matrix. After that, it predicts missing annotations of a protein based on the annotations of its semantic neighbors. Experimental results on archived GO annotations of two model species (Yeast and Human) show that HashGO not only more accurately predicts functions than other related approaches, but also runs faster than them. PMID- 29031870 TI - Novel Parameter to Predict Left Ventricular Filling Pressure: Product of Log B Type Natriuretic Peptide and Ratio of Mitral Inflow Early and Late Diastolic Filling Velocities. AB - BACKGROUND: Several echocardiographic parameters are currently used to evaluate left ventricular (LV) filling pressure. However, these parameters are not always consistent in the clinical setting. We aimed to determine a novel parameter by multiplying log B-type natriuretic peptide (lnBNP) and the ratio of mitral inflow early and late diastolic filling velocities (E/A) for the prediction of pulmonary capillary wedge pressure (PCWP). METHODS AND RESULTS: One hundred ninety-eight patients suspected of chronic heart failure were analyzed. The product of lnBNP and E/A (BNP * E/A) showed the highest correlation coefficient with mean PCWP (R = 0.7326) compared with E/A (R = 0.7010) and E/e' (R = 0.3922). Multivariate logistic regression analysis revealed that BNP * E/A was associated with elevated PCWP (odds ratio 1.640, 95% confidence interval 1.312-2.197; P <.01). In the receiver operating characteristic curve analysis for detecting elevated PCWP, BNP * E/A showed the largest area under the curve (AUC) compared with E/A and E/e' (0.880 vs 0.827 and 0.788, respectively; P <.05). BNP * E/A still showed large AUC (0.842) for detection of elevated PCWP in patients with normal LV ejection fraction. CONCLUSION: BNP * E/A is a useful parameter for detecting elevated PCWP regardless of the LV ejection fraction. PMID- 29031871 TI - Sirenomelia with VACTERL association-a rare anomaly. PMID- 29031873 TI - Does specialty matter? A survey on 176 Italian neurosurgeons and orthopedic spine surgeons confirms similar competency for common spinal conditions and supports multidisciplinary teams in comprehensive and complex spinal care. AB - BACKGROUND CONTEXT: Spine surgery is a multifaceted subspeciality requiring a breadth of knowledge and skill from different branches of medicine for the treatment of pathologies varying from degenerative to deformity, oncological, and trauma. PURPOSE: The aim of the study was to investigate the self-perceived competency of spine surgeons in relation to different types of spinal procedures. STUDY DESIGN/SETTING: This is a survey study. METHODS: We conducted a survey on 176 surgeons (orthopedic surgeons and neurosurgeons). The instrument used for the assessment of the perceived ability was a survey consisting of 21 items (scenarios) developed and distributed through a professional online survey service to ensure confidentiality and anonymity. A newly proposed procedure specific rating survey was used for the evaluation. Kruskal-Wallis non-parametric test was used to assess validity. A p-value of <.05 was considered statistically significant. A Cronbach alpha value of >0.8 indicated reliability. RESULTS: Between the respondents (101), 47.5% were orthopedic surgeons and 52.5% were neurosurgeons. The internal consistency of the questionnaire was satisfactory (Cronbach alpha=0.93). For common spinal conditions, the orthopedic surgeons and the neurosurgeons perceived a similar competency. The neurosurgeons felt more competent in some cervical conditions (upper cervical procedures, myelopathy) and in neurologic tumors of the spine. The orthopedic surgeons felt more competent in deformities of the spine and in pelvic trauma. CONCLUSIONS: Self-perceived surgical competency for common spinal conditions is similar for orthopedic and neurosurgically trained spine surgeons. For less common conditions and clinical scenarios, the combination of both specialties seems to cover better the full spectrum of surgical care for spinal conditions. Multidisciplinary teams and comprehensive, multidisciplinary spinal surgical training should be considered to provide full coverage of spinal pathology. PMID- 29031872 TI - Accumulation and localization of macrophage phenotypes with human intervertebral disc degeneration. AB - BACKGROUND CONTEXT: Chronic inflammation is an important component of intervertebral disc (IVD) degeneration, but there is limited knowledge about the identity and source of inflammatory cells involved with the degenerative processes. Macrophages can exhibit multiple phenotypes and are known inflammatory regulators in many tissues, but their phenotypes have not been characterized in IVD degeneration. PURPOSE: We aimed to characterize accumulation and localization of macrophages in IVD degeneration. STUDY DESIGN/SETTING: This is an exploratory study to characterize macrophage phenotypes in human cadaver IVDs and the effects of injury and degeneration using multiple immunohistochemistry methods. OUTCOME MEASURES: Percent positivity of immunohistochemical markers specific for CCR7, CD163, and CD206, and qualitative assessments of dual immunofluorescence and immunostaining localization were the outcome measures. METHODS: Macrophages were identified in human cadaveric IVDs with immunohistochemistry using cell surface markers CCR7, CD163, and CD206, which are associated with proinflammatory M1, remodeling M2c, and anti-inflammatory M2a phenotypes, respectively. Variations in the accumulation and localization of macrophage markers with degenerative grade across subjects and within donors are described. RESULTS: Cells expressing all three macrophage markers were found in all degenerative IVDs, but not in the healthiest IVDs. Cells expressing CCR7 and CD163, but not CD206, significantly increased with degenerative grade. Many cells also co-expressed multiple macrophage markers. Across all degenerative grades, CCR7+ and CD163+ were significantly more present in unhealthy nucleus pulposus (NP), annulus fibrosus (AF), and end plate (EP) regions exhibiting structural irregularities and defects. Positively stained cells in the NP and AF closely resembled resident IVD cells, suggesting that IVD cells can express macrophage cell surface markers. In the EP, there were increasing trends of positively stained cells with atypical morphology and distribution, suggesting a source for exogenous macrophage infiltration into the IVD. CONCLUSIONS: Chronic inflammatory conditions of IVD degeneration appear to involve macrophages or macrophage-like cells, as expression of multiple macrophage markers increased with degeneration, especially around unhealthy regions with defects and the EP. Knowledge of macrophage phenotypes and their localization better elucidates the complex injury and repair processes in IVDs and may eventually lead to novel treatments. PMID- 29031874 TI - An update on the physiopathology and therapeutic management of cholestatic pruritus in children. AB - Pruritus is a disabling symptom accompanying chronic cholestasis. In extreme cases, the refractory nature of pruritus can result in a need for invasive therapies including liver transplantation. The pathogenesis of pruritus in cholestatic disease is poorly understood. It may involve a specific neural pathway (similar to that associated with pain) regulated by several pruritogenic substances such as bile acids, opioids, serotonin, and the more recently identified lysophosphatidic acid. While the therapeutic management of cholestatic pruritus is well established in adults, there is no consensus in children, in light of the difficulty of conducting controlled clinical studies. The currently recommended strategy to manage cholestatic pruritus in children is based on several lines of specific therapies that should be associated with skin hydration and with non-specific treatment of cholestasis including ursodeoxycholic acid. Pruritus should be assessed as objectively as possible between each line of therapy. Rifampicin, a potent CYP3A4 inducer, is the first-line treatment of cholestatic pruritus. Second-line therapies require evaluation of the child in an expert center and are discussed on a case-by-case basis depending on the underlying disease and the experience of the center. These include inhibitors of serotonin reuptake (sertraline), opioid antagonists (naloxone), or ASBT inhibitors. Invasive therapies such as biliary diversion or liver transplantation can also be proposed in the most severe cases. The aim of the current update is to review the physiopathologic mechanisms implicated in cholestatic pruritus and to propose potential therapeutic strategies in children. PMID- 29031875 TI - Soluble epoxide hydrolase inhibition with t-TUCB alleviates liver fibrosis and portal pressure in carbon tetrachloride-induced cirrhosis in rats. AB - BACKGROUND/AIMS: Fibrosis and increased intrahepatic vascular resistance are the hallmarks of chronic inflammatory disorders of the liver and cirrhosis. Inhibitors of the enzyme soluble epoxide hydrolase reduce fibrosis in several disease models. The present study aimed at investigating the effects of soluble epoxyhydrolase inhibition with t-TUCB in tetrachloride-induced cirrhosis in rats. METHODS: The models were established by CCl4 (2ml/kg) given subcutaneously for 14 weeks. t-TUCB was concomitantly administered from the tenth week of modelling time. After the models were successfully built, the rats were anesthetized with sodium phenobarbital and portal pressure was determined in the groups. After that, the rats were killed and part of liver tissues were taken for histological analysis. In addition, the levels of intrahepatic inflammatory message factors were measured using real-time polymerase chain reaction (PCR) analysis. The remaining liver samples were processed for assessment of oxidative stress. RESULTS: t-TUCB administration significantly attenuated portal pressure relative to CCl4-only rats. This improvement was associated with decreased deposition of collagen in liver, which was supported by reduced mRNA expression of alpha-smooth muscle actin (alpha-SMA), Collagen I, Collagen III, transforming growth factor (TGF)-beta and tissue inhibitor of metalloproteinase-1 (TIMP-1) and increased matrix metalloproteinase-1, -13 (MMP-1, -13) mRNA expression. In addition, t-TUCB decreased the levels of proinflammatory cytokines, including IL-1beta, IL-6, IL 10, tumor necrosis factor-alpha (TNF-alpha) and NF-kappaB, within cirrhotic hepatic tissue. Meanwhile, oxidative stress was also alleviated following inhibition of sEH in CCl4-induced models, as evidenced by down-regulated levels of malondialdehyde (MDA) and up-regulated levels of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px). CONCLUSION: The soluble epoxyhydrolase inhibitor, t-TUCB alleviates liver fibrosis and portal hypertension through attenuation of inflammatory response and oxidative stress in tetrachloride induced cirrhosis. PMID- 29031876 TI - Short communication: Association between udder health status and blood serum proteins in dairy cows. AB - The aim of this study was to investigate the association between udder health (UH) status and blood serum proteins (i.e., total protein, albumin, globulin, and albumin-to-globulin ratio) in dairy cows. Blood and milk samples were collected from 1,508 cows of 6 different breeds (Holstein Friesian, Brown Swiss, Jersey, Simmental, Rendena, and Alpine Grey) that were housed in 41 multibreed herds. Bacteriological analysis was performed on milk samples with somatic cell count (SCC) >100,000 cells/mL and bacteria identification was confirmed by multiplex PCR assays. Milk samples were grouped into 7 clusters of UH status: healthy (cows with milk SCC <100,000 cells/mL and not cultured); culture-negative samples with low, medium, or high SCC; and culture-positive samples with contagious, environmental, and opportunistic intramammary infections. Data of blood serum proteins were analyzed using a linear mixed model that included the fixed effects of stage of lactation, parity, breed, herd productivity (high or low production) and UH status, and the random effect of herd-date within herd productivity. Culture-negative samples with high milk SCC, which were most likely undergoing a strong inflammatory response and whose pathogens could not be isolated because they were engulfed by macrophages or because they had already cleared, and milk samples infected by contagious and environmental bacteria were associated with greater globulin concentrations (and lower albumin-to-globulin ratio) in blood. Variation in blood serum proteins seems to be associated with inflammatory status rather than infection, as serum globulin significantly increased in UH status groups with the highest milk SCC and no differences were observed among intramammary infections pathogens. Blood serum proteins can be a mammary gland inflammation indicator, but cannot be used to differentiate among different UH status groups. PMID- 29031877 TI - Individual variation of the extent of milk fat depression in dairy ewes fed fish oil: Milk fatty acid profile and mRNA abundance of candidate genes involved in mammary lipogenesis. AB - Dairy ewes are less prone than cows to milk fat depression (MFD) but suffer from this syndrome when marine lipids are added to their diet to modulate milk fatty acid (FA) profile. However, there are large individual differences in MFD extent, and the reasons behind this variability are uncertain. On this basis, a study was conducted in lactating sheep to test the hypotheses that individual susceptibility to the low-fat milk condition may be explained by differences in (1) the milk concentration of some FA, particularly antilipogenic FA, or (2) the transcriptional regulation of mammary lipogenesis. For 5 wk, 15 ewes received a total mixed ration supplemented with 0 (control; n = 5) or 20 g of fish oil/kg of dry matter [10 animals selected out of 22 and divided into those showing marked (RESPON+; n = 5) or mild (RESPON-; n = 5) MFD]. Milk production and composition, including a comprehensive FA profile, were examined on 3 consecutive days before and after treatments. Candidate gene expression was also analyzed before the start of the trial and at its end using RNA isolated from milk somatic cells. According to the experimental design, the fish-oil-induced decrease in milk fat concentration was much stronger in RESPON+ (-25.4%) than in RESPON- (-7.7%). Milk from all ewes fed the supplemented diet showed rather uniform changes in the proportion of potentially healthy FA (such as cis-9,trans-11 18:2, trans-11 18:1, or 20:5n-3) and of those with confirmed or putative antilipogenic effects (e.g., cis-9 16:1, trans-10 and cis-11 18:1, trans-9,cis-11 18:2, and 10-oxo-18:0), without significant variation between RESPON+ and RESPON-. It was not possible to relate the very few exceptions to this general trend (e.g., in cis-7 16:1 and 22:6n-3) to responsiveness. Major mechanisms involved in mammary lipogenesis, specifically the uptake and de novo synthesis of FA, appeared to be unequally inhibited in ewes displaying different degrees of MFD, with molar yields of >16C FA being unaffected in RESPON-. However, this was not reflected in candidate gene expression. Supplementation with fish oil showed a tendency to lower the mRNA abundance of lipogenic genes such as ACSS2, FASN, LPIN1, FADS2, and INSIG1, but only SCD and GPAT4 tended to differ between RESPON- and RESPON+. Overall, these results offer no convincing support for the initial hypotheses, so further research must be pursued to explain the individual variation in MFD severity. PMID- 29031878 TI - Retention and transport of mecoprop on acid sandy-loam soils. AB - Interaction with soil components is one of the key processes governing the fate of agrochemicals in the environment. In this work, we studied the adsorption / desorption and transport of mecoprop (methylchlorophenoxypropionic acid or MCPP) in four acid sandy-loam soils with different organic matter contents. Kinetics of adsorption and adsorption/desorption at equilibrium were studied in batch experiments, whereas transport was studied in laboratory columns. Adsorption and desorption were found to be linear or nearly-linear. The kinetics of mecoprop adsorption were relatively fast in all cases (less than 24h). Adsorption and desorption were adequately described by the linear and Freundlich models, with KF values that ranged from 0.7 to 8.8Ln umol1-nkg-1 and KD values from 0.3 to 3.6Lkg 1. The results of the transport experiments showed that the retention of mecoprop by soil was very low (less than 6.2%). The retention of mecoprop by the soils in all experiments increased with organic matter content. Overall, it was observed that mecoprop was weakly adsorbed by the soils, what would result in a high risk of leaching of this compound in the environment. PMID- 29031879 TI - The effects of extracellular polymeric substances on magnetic iron oxide nanoparticles stability and the removal of microcystin-LR in aqueous environments. AB - The behaviors of nanoparticles rely on the aqueous condition such as natural organic matter (NOM). Therefore the presence of NOM would influence the interaction of nanoparticles with other substances possibly. Here, microcystin-LR (MC-LR) adsorption on iron oxide nanoparticles (IONPs) was studied in an aqueous solution with different types of NOM, including extracellular polymeric substances (EPS) from cyanobacteria and alginic acid sodium salt (AASS) from brown algae. Results revealed that EPS played an important role in stabilizing IONPs and in the toxin adsorption efficiency. The stability of IONPs was heavily depended on the concentration and type of NOM, which can affect the surface charge of IONPs significantly in solution. The enhanced stability of IONPs was due to the electrostatic interactions. Adsorption kinetics and isotherm studies confirmed that NOM can affect the IONPs' adsorption efficiency, and pseudo-second order kinetics better explained this process. The removal efficiency for MC-LR decreased in the presence of NOM (Control > EPS-M1 > AASS > EPS-M9), indicating that NOM and MC-LR compete for limited adsorption sites. The presence of NOM in a eutrophic environment stabilized the IONPs while inhibiting the MC-LR removal efficiency. This investigation emphasized the negative effect of cyanobacterial EPS on the removal of microcystins when using magnetic separation technology. And this results could also be used to model the transportation of iron minerals carrying toxic substances in aqueous environment. PMID- 29031880 TI - Assisted phytoremediation of heavy metal contaminated soil from a mined site with Typha latifolia and Chrysopogon zizanioides. AB - Chemically assisted phytoremediation is fast gaining attention as a biotechnology to accelerate heavy metal removal from contaminated substrates, but how different chemical amendments affect the process remains an important research question. Here, bioaccumulation factor (BAF), translocation factor (TF), removal efficiency (RE) and uptake of Hg, As, Pb, Cu and Zn by cattail (Typha latifolia) and vetiver (Chrysopogon zizanioides) were quantified in a potted experiment to determine the effects of amendments on the phytoremediation success. Baseline concentrations of heavy metals within the studied mined site were determined. The experiment involved three soil treatments (each comprising 16 samples amended with 0.05mol/L ethylene di-aminetetraacetic acid (EDTA), 3g of aluminum sulfate [Al2(SO4)3], and unamended control) transplanted with equal numbers of vetiver and cattail. Growth performance (height) of plant species was monitored every two weeks. Sixteen weeks after transplanting, heavy metal levels in plant and soil samples were quantified following standard protocols, and the biomass and root length measured for each plant species. Results indicated strong negative impact of mining activities on heavy metal levels of soil in the study area. Soil amendment considerably enhanced the BAF, TF, RE and uptake but the effect varied with plant species and heavy metal in question. The amendment also stimulated strong positive correlation between RE and BAF, TF and metal uptake, and generally did not show any negative effects on plant growth performance. In general, soil amendment aided the accumulation and translocation of heavy metals in the plant species studied, and could be explored for cleaning up contaminated sites. PMID- 29031881 TI - Beyond variability: Subjective timing and the neurophysiology of motor cognition. AB - BACKGROUND: Movement simulation helps increasing the chances to reach goals. A cognitive task used to study the neuro-behavioral aspects of movement simulation is mental rotation: people mentally re-orient rotated pictures of hands. However, the involvement of the primary motor cortex (M1) in mental rotation is largely controversial. HYPOTHESIS: Such inconsistency could arise from potential methodological flaws in experimental procedures and data analysis. In particular, until now, the timing of M1 activity has been computed in absolute terms: from the onset of mental rotation (onset-locked), neglecting intra- and inter-subject variability. METHODS: A novel phase-locked approach is introduced to synchronize the same phases of cognitive processing among different subjects and sessions. This approach was validated in the particular case of corticospinal excitability of the motor cortex during mental rotation. RESULTS: We identified the relative time-windows during which the excitability of M1 is effector-specifically modulated by different features of mental rotation. These time windows correspond to the 55%-85% of the subjective timing. CONCLUSIONS: In sum, (i) we introduce a new method to study the neurophysiology of motor cognition, and (ii) validating this method, we shed new light on the involvement of M1 in movement simulation. PMID- 29031882 TI - Long-term outcomes after noncurative endoscopic resection of early gastric cancer: the optimal time for additional endoscopic treatment. AB - BACKGROUND AND AIMS: We aimed to evaluate long-term outcomes with noncurative endoscopic submucosal dissection (ESD) for early gastric cancer (EGC) and surveillance strategies such as the optimal time for additional endoscopic treatment in patients with noncurative ESD. METHODS: Of 2527 patients who underwent gastric ESD for EGC, 512 (20.3%) patients with noncurative resection were reviewed. Noncurative resection is defined as positive resected margins on histology, lymphovascular infiltration, or beyond the expanded criteria for ESD. RESULTS: The mean +/- standard deviation follow-up duration was 79.0 +/- 55.7 months. A total of 264 patients (51.6%) and 50 patients (9.8%) underwent surgery and endoscopic treatment after noncurative resection, respectively, whereas 198 patients (38.7%) were observed. Cancer-specific survival and disease-free survival rates were significantly different among the surgery, other endoscopic treatment, and observation groups (96.7%, 86.8%, and 86.2%, respectively; P =.030; and 92.5%, 73.6%, and 63.0%, respectively; P < .001). When patients who underwent surgery were excluded, the disease-free survival rate of recurrence was not significantly different between the endoscopic treatment and observation groups (73.6% vs 63.0%; P = .548). To exclude the potential for the presence of lymph node metastasis, we further analyzed disease-free survival of local recurrence by comparing the patients with only a positive lateral resection margin. The disease-free survival rate was higher in the endoscopic treatment group than in the observation group (89.2% vs 69.1%; P = .023). Moreover, additional endoscopic treatment within 3 months showed significant associations with lower risk of local recurrence on multivariate analysis (hazard ratio, 0.017; 95% confidence interval, 0.002-0.260; P = .003). CONCLUSIONS: In patients with noncurative ESD, additional surgery showed a better long-term outcome; moreover, when a positive lateral resection margin was the only noncurative factor, additional endoscopic treatment within 3 months could be considered to improve disease-free survival. PMID- 29031883 TI - Antihypertensive pharmacotherapy for prevention of sudden cardiac death in hypertensive individuals: A Cochrane review summary. PMID- 29031884 TI - Human sperm cryopreservation in cancer patients: Links with deprivation and mortality. AB - Evidence is mounting for a relationship between human semen quality and environmental/lifestyle/socioeconomic factors including long term health outcomes such as mortality. The relationship between pre-freeze and post-thaw semen quality in cancer patients and these factors are unknown. Frozen semen from 217 cancer patients was thawed and analysed using a validated CASA method. Post-thaw quality was matched and compared with WHO semen analysis performed prior to storage. The English Indices of Deprivation 2010 were matched with patients and then examined for relationships with pre-freeze and post-thaw semen quality. There is a relationship between semen quality and deprivation in cancer patients. Compared with pre-freeze semen quality, post-thaw semen quality has a stronger relationship with deprivation. Sperm cryopreservation may have potential as a systemic health diagnostic test and is predictive of cancer patient mortality. PMID- 29031885 TI - Multiple signal-amplification via Ag and TiO2 decorated 3D nitrogen doped graphene hydrogel for fabricating sensitive label-free photoelectrochemical thrombin aptasensor. AB - In this study, Ag/TiO2/3D nitrogen doped graphene hydrogel (3DNGH) was prepared for the first time and the photocurrent intensity of this material was greatly enhanced, which was attributed to the multiple enhancements accomplished in one step. The porous structure of 3DNGH could provide an exceptionally large accessible surface area, which was beneficial for the anchoring of Ag and TiO2 nanoparticles. The introduction of nitrogen doped graphene and metal nanoparticles was capable to facilitate the charge separation efficiency and accelerate the transfer rate of the photogenerated electron-hole pairs. Then the photoelectrochemical performance was further amplified by the localized surface plasmon resonance of Ag nanoparticles. On the basis of excellent PEC properties of Ag/TiO2/3DNGH, a sensitive label-free PEC sensor has been established for the determination of thrombin successfully. This proposed PEC biosensor exhibited good PEC performances with a wide linear in the range from 0.01p.M. to 10p.M. as well as a relative low detection limit of 3 fM (S/N = 3), indicating that Ag/TiO2/3DNGH would serve as a promising photoactive material in the applications of PEC biosensors. PMID- 29031886 TI - ZIF-67 derived porous Co3O4 hollow nanopolyhedron functionalized solution-gated graphene transistors for simultaneous detection of glucose and uric acid in tears. AB - Biomarkers in tears have attracted much attention in daily healthcare sensing and monitoring. Here, highly sensitive sensors for simultaneous detection of glucose and uric acid are successfully constructed based on solution-gated graphene transistors (SGGTs) with two separate Au gate electrodes, modified with GOx-CHIT and BSA-CHIT respectively. The sensitivity of the SGGT is dramatically improved by co-modifying the Au gate with ZIF-67 derived porous Co3O4 hollow nanopolyhedrons. The sensing mechanism for glucose sensor is attributed to the reaction of H2O2 generated by the oxidation of glucose near the gate, while the sensing mechanism for uric acid is due to the direct electro-oxidation of uric acid molecules on the gate. The optimized glucose and uric acid sensors show the detection limits both down to 100nM, far beyond the sensitivity required for non invasive detection of glucose and uric acid in tears. The glucose and uric acid in real tear samples was quantitatively detected at 323.2 +/- 16.1MUM and 98.5 +/ 16.3MUM by using the functionalized SGGT device. Due to the low-cost, high biocompatibility and easy-fabrication features of the ZIF-67 derived porous Co3O4 hollow nanopolyhedron, they provide excellent electrocatalytic nanomaterials for enhancing sensitivity of SGGTs for a broad range of disease-related biomarkers. PMID- 29031887 TI - Direct colorimetric detection of unamplified pathogen DNA by dextrin-capped gold nanoparticles. AB - The interaction between gold nanoparticles (AuNPs) and nucleic acids has facilitated a variety of diagnostic applications, with further diversification of synthesis match bio-applications while reducing biotoxicity. However, DNA interactions with unique surface capping agents have not been fully defined. Using dextrin-capped AuNPs (d-AuNPs), we have developed a novel unamplified genomic DNA (gDNA) nanosensor, exploiting dispersion and aggregation characteristics of d-AuNPs, in the presence of gDNA, for sequence-specific detection. We demonstrate that d-AuNPs are stable in a five-fold greater salt concentration than citrate-capped AuNPs and the d-AuNPs were stabilized by single stranded DNA probe (ssDNAp). However, in the elevated salt concentrations of the DNA detection assay, the target reactions were surprisingly further stabilized by the formation of a ssDNAp-target gDNA complex. The results presented herein lead us to propose a mechanism whereby genomic ssDNA secondary structure formation during ssDNAp-to-target gDNA binding enables d-AuNP stabilization in elevated ionic environments. Using the assay described herein, we were successful in detecting as little as 2.94 fM of pathogen DNA, and using crude extractions of a pathogen matrix, as few as 18 spores/uL. PMID- 29031888 TI - Below the surface: Parents' views on the factors that influence treatment adherence in paediatric burn scar management - A qualitative study. AB - INTRODUCTION: Parents have a crucial role to play in burn scar management for their children at a time that is extremely stressful for them and their child. Scar management treatments such as pressure garment therapy (PGT) require high levels of adherence. There has been a lack of research into the factors that may influence adherence in paediatric burn scar management. This qualitative research study has investigated parents' experiences of scar management and their attempts to adhere to treatment at home. The aim of this paper is to outline parents' views on the factors that influence adherence. METHODS: 25 parents of paediatric and adolescent burn patients took part in semi-structured interviews. Participants were recruited from three UK burns services. Interviews were conducted in a participant-focussed manner and topics for discussion included parents' accounts of treatment and their experience of PGT. A thematic analysis was undertaken. RESULTS: Four overarching themes describe parents' views and experiences of scar management and adherence. These are the transition from hospital to home; the practical realities of treatment; the emotional labour involved in treatment and; negotiating treatment and regime. The transition from hospital to home is a significant event for parents. They may be apprehensive about this at the same time as they desire that they and their child return to some sense of normality following the burn injury. Parents are required to adopt the role of therapeutic caregiver upon transition from hospital to home. Adherence to scar management is influenced by the practical realities of maintaining treatment (routine, division of care labour, hospital appointments) and the emotional labour involved in doing so. The latter demands that parents manage their own and their children's emotions. Approaches to adherence were often described as flexible in response to these influences. CONCLUSIONS: Some parents negotiate the realities and demands of scar management successfully, whereas others do not. The emotional labour experienced by parents and their ability to cope with this is often a strong influence on their views regarding adherence to scar management. Further research is needed to explore how burns services and staff manage this at present, and whether simple interventions can help with the key practical and emotional influences on treatment adherence. PMID- 29031889 TI - Outcomes important to burns patients during scar management and how they compare to the concepts captured in burn-specific patient reported outcome measures. AB - BACKGROUND: Pressure garment therapy (PGT) is an established treatment for the prevention and treatment of hypertrophic scarring; however, there is limited evidence for its effectiveness. Burn survivors often experience multiple issues many of which are not adequately captured in current PGT trial measures. To assess the effectiveness of PGT it is important to understand what outcomes matter to patients and to consider whether patient-reported outcome measures (PROMs) can be used to ascertain the effect of treatments on patients' health related quality of life. This study aimed to (a) understand the priorities and perspectives of adult burns patients and the parents of burns patients who have experienced PGT via in-depth qualitative data, and (b) compare these with the concepts captured within burn-specific PROMs. METHODS: We undertook 40 semi structured interviews with adults and parents of paediatric and adolescent burns patients who had experienced PGT to explore their priorities and perspectives on scar management. Interviews were audio-recorded, transcribed and thematically analysed. The outcomes interpreted within the interview data were then mapped against the concepts captured within burn-specific PROMs currently in the literature. RESULTS: Eight core outcome domains were identified as important to adult patients and parents: (1) scar characteristics and appearance, (2) movement and function, (3) scar sensation, (4) psychological distress, adjustments and a sense of normality, (5) body image and confidence, (6) engagement in activities, (7) impact on relationships, and (8) treatment burden. CONCLUSIONS: The outcome domains presented reflect a complex holistic patient experience of scar management and treatments such as PGT. Some currently available PROMs do capture the concepts described here, although none assess psychological adjustments and attainment of a sense of normality following burn injury. The routine use of PROMs that represent patient experience and their relative contribution to trial outcome assessment versus clinical measures is now a matter for further research and debate. PMID- 29031890 TI - Changing perspectives in atopic dermatitis. AB - Atopic dermatitis (AD) is a multifaceted disease that involves a complex interplay between the skin and the immune system. The course of the disease depends strongly on the genetic background of the patient and on yet poorly defined environmental factors. Changes in lifestyle could be behind the dramatic rise in the prevalence of AD across continents; including hygienic conditions, food, social habits, skin microbiome or exposure to a number of allergens. Although AD typically develops in childhood and disappears after a few years, in a relatively large number of patients it continues into adulthood. Adult AD can also appear de novo but it is often underdiagnosed and its treatment can be challenging. New, highly effective drugs are being developed to manage moderate and severe forms of the disease in adults. In this review, we highlight the most recent developments in diagnostic tools, current insights into the mechanistic basis of this disease, and therapeutic innovations. PMID- 29031891 TI - Low efficacy of atopy patch test in predicting tolerance development in non-IgE mediated cow's milk allergy. AB - BACKGROUND: The food atopy patch (APT) test has been used in previous studies to help the diagnosis of non-IgE mediated food allergies (FA). The aim of this study was to evaluate the efficacy of different cow's milk APT preparations to predict oral tolerance in children with previous non-IgE-mediated cow's milk allergy (CMA) diagnosis. METHODS: Thirty-two patients non-IgE-mediated CMA diagnosed by oral food challenge (OFC) were enrolled to perform APT with three different cow's milk preparations (fresh, 2% in saline solution, 2% in petrolatum) and comparing with a new OFC after at least three months of diet exclusion. RESULTS: Only six (18.7%) subjects presented positive OFC to cow's milk. No differences in gender, onset symptoms age, OFC age, Z-score, and exclusion period were found between positive and negative OFC patients. Preparations using fresh milk and powdered milk in petrolatum presented sensitivity equal to zero and specificity 92.3% and 96.1%. The preparation using powdered milk in saline solution showed sensitivity and specificity of 33.3% and 96.1%. Two patients presented typical IgE symptoms after OFC. CONCLUSION: Cow's milk APT presented a low efficacy to predict tolerance in patients with previous non-IgE-mediated CMA and should not be used in clinical routine. The presence of typical IgE reactions after OFC hallmark the necessity of previous IgE-mediated investigation for this patient group. PMID- 29031893 TI - In an in-vitro model using human fetal membranes, 17-alpha hydroxyprogesterone caproate is not an optimal progestogen for inhibition of fetal membrane weakening. AB - BACKGROUND: The progestogen 17-alpha hydroxyprogesterone caproate (17-OHPC) is 1 of only 2 agents recommended for clinical use in the prevention of spontaneous preterm delivery, and studies of its efficacy have been conflicting. We have developed an in-vitro model to study the fetal membrane weakening process that leads to rupture in preterm premature rupture of the fetal membranes (pPROM). Inflammation/infection associated with tumor necrosis factor-alpha (TNF-alpha) induction and decidual bleeding/abruption associated thrombin release are leading causes of preterm premature rupture of the fetal membranes. Both agents (TNF alpha and thrombin) cause fetal membrane weakening in the model system. Furthermore, granulocyte-macrophage colony-stimulating factor (GM-CSF) is a critical intermediate for both TNF-alpha and thrombin-induced fetal membrane weakening. In a previous report, we demonstrated that 3 progestogens, progesterone, 17-alpha hydroxyprogesterone (17-OHP), and medroxyprogesterone acetate (MPA), each inhibit both TNF-alpha- and thrombin-induced fetal membrane weakening at 2 distinct points of the fetal membrane weakening pathway. Each block both the production of and the downstream action of the critical intermediate granulocyte-macrophage colony-stimulating factor. OBJECTIVE: The objective of the study was to characterize the inhibitory effects of 17-OHPC on TNF-alpha- and thrombin-induced fetal membrane weakening in vitro. STUDY DESIGN: Full-thickness human fetal membrane fragments from uncomplicated term repeat cesarean deliveries were mounted in 2.5 cm Transwell inserts and cultured with/without 17-alpha hydroxyprogesterone caproate (10-9 to 10-7 M). After 24 hours, medium (supernatant) was removed and replaced with/without the addition of tumor necrosis factor-alpha (20 ng/mL) or thrombin (10 U/mL) or granulocyte macrophage colony-stimulating factor (200 ng/mL). After 48 hours of culture, medium from the maternal side compartment of the model was assayed for granulocyte-macrophage colony-stimulating factor and the fetal membrane fragments were rupture strength tested. RESULTS: Tumor necrosis factor-alpha and thrombin both weakened fetal membranes (43% and 62%, respectively) and increased granulocyte-macrophage colony-stimulating factor levels (3.7- and 5.9-fold, respectively). Pretreatment with 17-alpha hydroxyprogesterone caproate inhibited both tumor necrosis factor-alpha- and thrombin-induced fetal membrane weakening and concomitantly inhibited the induced increase in granulocyte-macrophage colony stimulating factor in a concentration-dependent manner. However, contrary to our prior reports regarding progesterone and other progestogens, 17-alpha hydroxyprogesterone caproate did not also inhibit granulocyte-macrophage colony stimulating factor-induced fetal membrane weakening. CONCLUSION: 17-Alpha hydroxyprogesterone caproate blocks tumor necrosis factor-alpha- and thrombin induced fetal membrane weakening by inhibiting the production of granulocyte macrophage colony-stimulating factor. However, 17-alpha hydroxyprogesterone caproate did not also inhibit granulocyte-macrophage colony-stimulating factor induced weakening. We speculate that progestogens other than 17-alpha hydroxyprogesterone caproate may be more efficacious in preventing preterm premature rupture of the fetal membranes-related spontaneous preterm birth. PMID- 29031892 TI - Altered angiogenesis as a common mechanism underlying preterm birth, small for gestational age, and stillbirth in women living with HIV. AB - BACKGROUND: Angiogenic processes in the placenta are critical regulators of fetal growth and impact birth outcomes, but there are limited data documenting these processes in HIV-infected women or women from low-resource settings. OBJECTIVE: We sought to determine whether angiogenic factors are associated with adverse birth outcomes in HIV-infected pregnant women started on antiretroviral therapy. STUDY DESIGN: This is a secondary analysis of samples collected as part of a clinical trial randomizing pregnant women and adolescents infected with HIV to lopinavir/ritonavir-based (n = 166) or efavirenz-based (n = 160) antiretroviral therapy in Tororo, Uganda. Pregnant women living with HIV were enrolled between 12-28 weeks of gestation. Plasma samples were evaluated for angiogenic biomarkers (angiopoietin-1, angiopoietin-2, vascular endothelial growth factor, soluble fms like tyrosine kinase-1, placental growth factor, and soluble endoglin) by enzyme linked immunosorbent assay between: 16-<20, 20-<24, 24-<28, 28-<32, 32-<36, 36 <37 weeks of gestation. The primary outcome was preterm birth. RESULTS: In all, 1115 plasma samples from 326 pregnant women and adolescents were evaluated. There were no differences in angiogenic factors according to antiretroviral therapy group (P > .05 for all). The incidence of adverse birth outcomes was 16.9% for spontaneous preterm births, 25.6% for small-for-gestational-age births, and 2.8% for stillbirth. We used linear mixed effect modelling to evaluate longitudinal changes in angiogenic factor concentrations between birth outcome groups adjusting for gestational age at venipuncture, maternal age, body mass index, gravidity, and the interaction between treatment arm and gestational age. Two angiogenic factors-soluble endoglin and placental growth factor-were associated with adverse birth outcomes. Significantly higher concentrations of soluble endoglin throughout gestation were found in study participants destined to deliver preterm [likelihood ratio test, chi2(1) = 12.28, P < .0005] and in those destined to have stillbirths [chi2(1) = 5.67, P < .02]. By contrast, significantly lower concentrations of placental growth factor throughout gestation were found in those destined to have small-for-gestational-age births [chi2(1) = 7.89, P < .005] and in those destined to have stillbirths [chi2(1) = 21.59, P < .0001]. CONCLUSION: An antiangiogenic state in the second or third trimester is associated with adverse birth outcomes, including stillbirth in women and adolescents living with HIV and receiving antiretroviral therapy. PMID- 29031896 TI - Thermoresponsive beta-glucan-based polymers for bimodal immunoradiotherapy - Are they able to promote the immune system? PMID- 29031895 TI - Chronic pelvic pain in an interdisciplinary setting: 1-year prospective cohort. AB - BACKGROUND: Chronic pelvic pain affects ~15% of women, and presents a challenging problem for gynecologists due to its complex etiology involving multiple comorbidities. Thus, an interdisciplinary approach has been proposed for chronic pelvic pain, where these multifactorial comorbidities can be addressed by different interventions at a single integrated center. Moreover, while cross sectional studies can provide some insight into the association between these comorbidities and chronic pelvic pain severity, prospective longitudinal cohorts can identify comorbidities associated with changes in chronic pelvic pain severity over time. OBJECTIVE: We sought to describe trends and factors associated with chronic pelvic pain severity over a 1-year prospective cohort at an interdisciplinary center, with a focus on the role of comorbidities and controlling for baseline pain, demographic factors, and treatment effects. STUDY DESIGN: This was a prospective 1-year cohort study at an interdisciplinary tertiary referral center for pelvic pain and endometriosis, which provides minimally invasive surgery, medical management, pain education, physiotherapy, and psychological therapies. Exclusion criteria included menopause or age >50 years. Sample size was 296 (57% response rate at 1 year; 296/525). Primary outcome was chronic pelvic pain severity at 1 year on an 11-point numeric rating scale (0-10), which was categorized for ordinal regression (none-mild 0-3, moderate 4-6, severe 7-10). Secondary outcomes included functional quality of life and health utilization. Baseline comorbidities were endometriosis, irritable bowel syndrome, painful bladder syndrome, abdominal wall pain, pelvic floor myalgia, and validated questionnaires for depression, anxiety, and catastrophizing. Multivariable ordinal regression was used to identify baseline comorbidities associated with the primary outcome at 1 year. RESULTS: Chronic pelvic pain severity decreased by a median 2 points from baseline to 1 year (6/10 4/10, P < .001). There was also an improvement in functional quality of life (42 29% on the pain subscale of the Endometriosis Health Profile-30, P < .001), and a reduction in subjects requiring a physician visit (73-36%, P < .001) or emergency visit (24-11%, P < .001) in the last 3 months. On multivariable ordinal regression for the primary outcome, chronic pelvic pain severity at 1 year was independently associated with a higher score on the Pain Catastrophizing Scale at baseline (odds ratio, 1.10; 95% confidence interval, 1.00-1.21, P = .04), controlling for baseline pain, treatment effects (surgery), age, and referral status. CONCLUSION: Improvements in chronic pelvic pain severity, quality of life, and health care utilization were observed in a 1-year cohort in an interdisciplinary setting. Higher pain catastrophizing at baseline was associated with greater chronic pelvic pain severity at 1 year. Consideration should be given to stratifying pelvic pain patients by catastrophizing level (rumination, magnification, helplessness) in research studies and in clinical practice. PMID- 29031894 TI - Refractory urgency urinary incontinence treatment in women: impact of age on outcomes and complications. AB - BACKGROUND: Women with refractory urgency urinary incontinence (ie, unresponsive to behavioral and pharmacological interventions) are treated with onabotulinumtoxinA or sacral neuromodulation. OBJECTIVE: The objective of the study was to compare treatment efficacy and adverse events in women <65 and >=65 years old treated with onabotulinumtoxinA or sacral neuromodulation. STUDY DESIGN: This study was a planned secondary analysis of a multicenter, randomized trial that enrolled community-dwelling women with refractory urgency urinary incontinence to onabotulinumtoxinA or sacral neuromodulation treatments. The primary outcome was a change in mean daily urgency urinary incontinence episodes on a bladder diary over 6 months. Secondary outcomes included >=75% urgency urinary incontinence episode reduction, change in symptom severity/quality of life, treatment satisfaction, and treatment-related adverse events. RESULTS: Both age groups experienced improvement in mean urgency urinary incontinence episodes per day following each treatment. There was no evidence that mean daily urgency urinary incontinence episode reduction differed between age groups for onabotulinumtoxinA (adjusted coefficient, -0.127, 95% confidence interval, -1.233 to 0.979; P = .821) or sacral neuromodulation (adjusted coefficient, -0.698, 95% confidence interval, -1.832 to 0.437; P = .227). Among those treated with onabotulinumtoxinA, women <65 years had 3.3-fold greater odds of >=75% resolution than women >=65 years (95% confidence interval, 1.56 -7.02). Women <65 years had a greater reduction in Overactive Bladder Questionnaire Short Form symptom bother scores compared with women >=65 years by 7.49 points (95% confidence interval, 3.23 to -11.74), regardless of treatment group. There was no difference between quality of life improvement by age. Women >=65 years had more urinary tract infections following onabotulinumtoxinA and sacral neuromodulation (odds ratio, 1.9, 95% confidence interval, 1.2-3.3). There was no evidence of age differences in sacral neuromodulation revision/removal or catheterization following onabotulinumtoxinA treatment. CONCLUSION: Younger women experienced greater absolute continence, symptom improvement, and fewer urinary tract infections; both older and younger women had beneficial urgency urinary incontinence episode reduction, similar rates of other treatment adverse events, and improved quality of life. PMID- 29031897 TI - Smart electrical bi-layers lipopeptides: Novel peptidic chains like zigzag map esterified with phospho-glyceride as mono-layer moieties capable in forming a meso-sphere- envelop with scaffold- ability to cellular impurities. AB - Cell impurities are an emerging nucleating molecular barriers having the capability in disordering the metabolic chain reactions of proteolysis, glycolysis and lipolysis. Their massive effects induced by copolymer crystal growth in compaction with metal and mineral transients are extended as well as in damaging DNA and mRNA structure motif and other molecular assembly e.g. histones structure unites. Their polycrystalline packing modes, polydispersity and their tendency to surface and interface adhesion prompted us in structuring scaffold biomaterials enriched with biopeptides, layered by phospho-glycerides ester forms. The interface tension of the formed map is flexible and dependent to the surface exposure and its collapse modes to the surrounding molecular ligands. Thus, the attempts in increasing surface exposure e.g. the viscoelastic of structured lipopeptides and types of formed network structures interplays an extra- conjugating biomolecules having a least cytotoxicity effects to cells constituents. Disulfides molecules are selected to be the key regulatory element in rejoining both lipidic and proteic moieties by disordering atoms status via chemical ionization using organic catalyst. The insertion of methionine based peptidic chain at the lateral surfaces of scaffold biomaterials enhances the electron-meta-static motions by raising a molecular disordering status at distinct regions of the map e.g. epimerization into a nonpolar side that helps the chemical conjunction of disulfide groups with the esterified phosphoglycerides mono-layers. These effects in turn are accomplished by the formation of meso-sphere nonpolar- vesicles. The oxidation of disulfide group would alter the ordering of initial molecules by raising a newly molecular disorders to the map with high polarity to surface regions. In the same time indicates a continuation in the crystallization growth factor via a low chemical lesions between the impurities and a supersaturation in the intra-atomic distances with maximum cross linking to the deformed ligand with scaffold biomaterials. PMID- 29031898 TI - Comparative analysis of ginsenosides in human glucocorticoid receptor binding, transactivation, and transrepression. AB - Conflicting data exist on the effect of ginsenosides on transactivation of human glucocorticoid receptor alpha (herein referred to as glucocorticoid receptor), and relatively little is known regarding the effect of these chemicals on transrepression of this receptor. We investigated the effect of 20(S) protopanaxadiol (PPD), PPD-type ginsenosides (Rb1, Rb2, Rc, Rd, Rh2, and Compound K), 20(S)-protopanaxatriol (PPT), and PPT-type ginsenosides (Re, Rf, Rg1, and Rh1) on glucocorticoid receptor binding, transactivation, and transrepression. Each ginsenoside was less efficacious than dexamethasone (positive control) in binding to the ligand-binding domain of glucocorticoid receptor. Among the ginsenosides investigated, Rh2 had the smallest IC50 value (15 +/- 1uM), whereas it was 0.02 +/- 0.01uM for dexamethasone. In contrast to dexamethasone, none of the ginsenosides influenced glucocorticoid receptor transactivation or transrepression in LS180 human colorectal adenocarcinoma cells, as assessed in a dual-luciferase reporter gene assay. Rh2 did not affect the endogenous mRNA level of tyrosine aminotransferase (marker for glucocorticoid receptor transactivation) or corticosteroid-binding globulin (marker for glucocorticoid receptor transrepression) in HepG2 human hepatocellular carcinoma cells. This chemical also did not alter the response by a glucocorticoid receptor agonist (dexamethasone or Compound A) in the dual-luciferase reporter gene assay or target gene expression assay. In conclusion, ginsenosides were less efficacious and less potent than dexamethasone in binding to the ligand-binding domain of glucocorticoid receptor. The number of glycosylated groups was associated with a decrease in receptor binding potency. PPD-type and PPT-type ginsenosides are not modulators of glucocorticoid receptor transactivation or transrepression in LS180 and HepG2 cells. PMID- 29031899 TI - Synapse formation in the brain can be enhanced by co-administering three specific nutrients. AB - The memory impairments of early Alzheimer's disease [AD] are thought to result from a deficiency in synapses within the hippocampus and related brain regions. This deficiency could result from an acceleration in synapse turnover - perhaps caused by an endogenous neurotoxin like A-beta oligomers - or from a decrease in the production of the synaptic membrane needed to form new synapses. An AD associated decrease in synaptogenesis almost certainly does occur, inasmuch as major decreases are also observed in the numbers of hippocampal dendritic spines, the immediate cytologic precursor of glutamatergic synapses. The syntheses of new dendritic spines and synapses can, however, be increased by concurrently raising brain levels of three circulating nutrients - uridine, omega-3 fatty acids docosahexaenoic acid (DHA) or eicosapentaenoic acid (EPA), and choline. This could provide an additional strategy for restoring synapses and thereby memory. The three nutrients are rate-limiting precursors in the Kennedy Cycle, the pathway which forms the phosphatides that are the major component of synaptic membranes. Uridine also increases the production of synaptic proteins, the other major membrane constituent, and the outgrowth of neurites. Hence administering the three nutrients accelerates synapse formation. These actions of uridine are largely mediated by uridine triphosphate (UTP), which can be released as a neurotransmitter from presynaptic terminals and can then activate P2Y2 receptors. The UTP in neurons can also be converted to cytidylyl triphosphate, CTP, the intermediate utilized in the Kennedy Cycle. PMID- 29031900 TI - Resveratrol improved detrusor fibrosis induced by mast cells during progression of chronic prostatitis in rats. AB - To investigate the detrusor fibrosis and urinary dysfunction in chronic prostatitis (CP), and to investigate whether resveratrol can improve the urinary dysfunction and the underlying molecular mechanism. After rat model of CP is established by subcutaneously injecting DPT vaccine, rats are treated with resveratrol. Experiments of bladder pressure and volume test in rats are used to investigate the effect of resveratrol on urinary dysfunction in CP rats. To assess tissue fibrosis, picrosirius red staining is performed. H&E staining is performed to identify the histopathological changes. Western blot and immunohistochemical staining are used to examine the expression of c-kit, SCF,tryptase, TGF-beta, Wnt and alpha-SMA. The results of bladder pressure and volume test show that the maximum capacity of the bladder, residual urine volume and maximum voiding are increased significantly in CP rats. CP rats show significantly increased collagen deposition in the detrusor. H&E staining show that detrusor muscle arranged in disorder with fracture from CP rats. The results of western blot and immunohistochemical staining demonstrate that the activity of c-kit/SCF and TGF-beta/Wnt/beta-catenin pathway, expression levels of tryptase and alpha-SMA in bladder detrusor of CP group are significantly increased compared with the control group. However, resveratrol treatment significantly improved these factors. mast cell activation induced by the increased expression of c-kit/SCF in CP rats, may promote detrusor fibrosis which have a close relationship with urinary dysfunction. Resveratrol can improve the dysfunction by downregulating the mast cell activation and the activity of TGF-beta/Wnt/beta catenin pathway. PMID- 29031901 TI - Als and Ftd: Insights into the disease mechanisms and therapeutic targets. AB - Amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) are neurodegenerative disorders, related by signs of deteriorating motor and cognitive functions, and short survival. The causes are still largely unknown and no effective treatment currently exists. It has been shown that FTLD may coexist with ALS. The overlap between ALS and frontotemporal dementia (FTD), the clinical syndrome associated with FTLD, occurs at clinical, genetic, and pathological levels. The hallmark proteins of the pathognomonic inclusions are SOD-1, TDP-43 or FUS, rarely the disease is caused by mutations in the respective genes. Frontotemporal lobar degenerations (FTLD) is genetically, neuropathologically and clinically heterogeneous and may present with behavioural, language and occasionally motor disorder, respectively. Almost all cases of ALS, as well as tau-negative FTLD share a common neuropathology, neuronal and glial inclusion bodies containing abnormal TDP-43 protein, collectively called TDP-43 proteinopathy. Recent discoveries in genetics (e.g. C9orf72 hexanucleotide expansion) and the subsequent neuropathological characterization have revealed remarkable overlap between ALS and FTLD-TDP indicating common pathways in pathogenesis. For ALS, an anti-glutamate agent riluzole may be offered to slow disease progression (Level A), and a promising molecule, arimoclomol, is currently in clinical trials. Other compounds, however, are being trailed and some have shown encouraging results. As new therapeutic approaches continue to emerge by targeting SOD1, TDP-43, or GRN, we present some advances that are being made in our understanding of the molecular mechanisms of these diseases, which together with gene and stem cell therapies may translate into new treatment options. PMID- 29031902 TI - Chrysophanol inhibits endoplasmic reticulum stress in cerebral ischemia and reperfusion mice. AB - Endoplasmic reticulum (ER) stress plays a critical role in mediating ischemia/reperfusion (I/R) damage in the brain. Our previous study showed that Chrysophanol (CHR) alleviated cerebral ischemic injury in mice and nuclear factor kappaB (NF-kappaB) involved in its neuroprotective effect, but the precise mechanism remains not fully understood. The present study investigated the effect of CHR treatment on I/R-induced ER stress. Mice were subjected to middle cerebral artery occlusion (MCAO) for 45min and received either vehicle or CHR (0.1mg/kg) for 14 days after reperfusion. Terminal deoxynucleotidyl transferase (TdT) mediated dUTP nick end labeling (TUNEL) was used to detect apoptotic cells in penumbral tissue. The expression of ER stress-related factors including glucose regulated protein 78 (GRP78), phosphorylated eukaryotic initiation factor 2alpha (p-eIF2alpha), CCAAT-enhancer-binding protein homologous protein (CHOP), and caspase-12 as well as inhibitory kappaB-alpha (IkappaB-alpha), the inhibitor of NF-kappaB, was assessed. Our results demonstrated that CHR treatment reduced MCAO induced upregulation of GRP78, p-eIF2alpha, CHOP, and caspase-12 in the ischemic brain. Moreover, the TUNEL-positive neuronal cells, which were colocalized with CHOP and caspase-12, decreased in response to CHR treatment, indicating that CHR protects against I/R injury by inhibiting ER stress-associated neuronal apoptosis. In addition, CHR reversed the decrease in IkappaB-alpha level induced by MCAO, which was attributed at least in part to the attenuation of translational inhibition induced by eIF2alpha phosphorylation, indicating that CHR exerts anti-inflammatory effects following I/R by inhibiting ER stress response. These results suggest that attenuation of ER stress may be involved in the mechanisms of neuroprotective effects of CHR. PMID- 29031903 TI - Agmatine inhibits chronic morphine exposure-induced impairment of hippocampal neural progenitor proliferation in adult rats. AB - Our previous studies have shown that agmatine inhibited opioid dependence, yet the neural mechanism remains unclear. Growing evidence showed that opioids decrease neurogenesis in the adult hippocampal subgranular zone by inhibiting neural progenitor proliferation. However, whether agmatine affects chronic opioid exposure-induced impairment to hippocampal neural progenitor cell proliferation remains unknown. In the present study, we investigated the role of agmatine in hippocampal neural progenitors in morphine dependence rats. We found that chronic administration of morphine for 12 days induced morphine dependence in rats. This treatment not only decreased the proliferation of hippocampal neural progenitors in the granule cell layer, but also decreased the levels of hippocampal cAMP, pCREB and BDNF. However, these alterations can be restored to normal levels by co treatment of agmatine (10mg/kg, s.c.). In vitro treatment with agmatine (10uM) for two days significantly increased proliferation of the cultured hippocampal neural progenitors. Concurrent treatment of agmatine (10uM) with morphine (10 or 50uM) reversed the supression of morphine-induced neural progenitor proliferation. In conclusion, we found that agmatine abolished chronic morphine induced decrease in proliferation of hippocampal progenitors in vivo and in vitro, which may be due to the increase in cAMP-CREB-BDNF signaling. The enhancement of agmatine to proliferation of hippocampal progenitors may be one of the important mechanisms involved in the inhibition of morphine dependence by agmatine. PMID- 29031904 TI - Definitive radiotherapy for a head and neck Merkel cell carcinoma and comprehensive nodal volumes: a case for using a computer-designed variable thickness compensator to reduce risk and severity of mucositis. AB - When contemplating how to treat head and neck primary cancers and regional lymph nodes with radiotherapy, we often select the contemporary intensity-modulated radiotherapy (IMRT) without much consideration of older methods that may give fewer side effects and be more cost-effective. For an 87-year-old female with a 1.5-cm Merkel cell carcinoma (MCC) located 1.5 cm lateral to the orbital rim, we were challenged to deliver 50 Gy to comprehensive elective nodal regions and 70 Gy to the primary. We were particularly concerned about the potential adverse acute effects of radiotherapy to mucosal structures in this elderly female. Acute mucositis could impair nutrition, quality of life, and treatment intensity especially given her age. We compared 3 techniques that are appropriate for this target: step-and-shoot IMRT, matched electron fields (MEF), and electron conformal therapy (BolusECTTM). We selected and treated her with BolusECTTM because of better sparing of larynx, pharynx, oral cavity and lips, and shortest treatment time. This is a reasonable option for treating ipsilateral head and neck target volumes at centers where only these 3 techniques are available. PMID- 29031906 TI - Suckling induced insulin-like growth factor-1 (IGF-1) release in mother rats. AB - OBJECTIVE: Lactation involves significant neuroendocrine changes. The elevated prolactin (PRL) release from the pituitary, induced markedly by suckling, is the most relevant example. Suckling also causes a significant and rapid elevation in growth hormone (GH) levels. GH is necessary for milk synthesis as milk yield is stopped completely in the absence of PRL and GH, while the absence of PRL alone causes only a 50% reduction. Insulin-like growth factor-1 (IGF-1) plays an important role in the GH axis. GH exerts its effects through IGF-1 in the periphery, for example in the mammary gland. In addition, IGF-1 is responsible for the long-loop feedback control of GH secretion. DESIGN: IGF-1 secretion has not been established yet in mothers. Therefore, in the present study, we investigated the effect of suckling on serum IGF-1 level in rat mothers and correlated it with serum PRL levels. We examined a potential mechanism of the regulation of IGF-1 level during suckling by administering IGF-1 into the lateral ventricle of rat mothers continuously for 12days, or acutely, right before the start of suckling. RESULTS: We described that suckling affected IGF-1 release based on one-way repeated measures ANOVA (F=10.8 and p<0.001) and caused a marked increase of IGF-1 level 30min after the start of suckling (p<0.001). We demonstrated a significant (p<0.05; the correlation coefficient was 0.29) correlation to PRL level during suckling which supports that PRL could induce IGF 1 release. The prolonged central IGF-1 administration diminished the suckling induced IGF-1 surge (F=9.19 and p<0.001) while the acute treatment did not have any effect compared to artificial cerebrospinal fluid injection, analysed with two-way repeated measures ANOVA. CONCLUSIONS: In conclusion, suckling induces IGF 1 release either by elevating PRL or GH. Long-loop feedback via IGF-1 in the GH axis can diminish this action. PMID- 29031907 TI - About cytokeratin 19 and the drivers of liver regeneration. PMID- 29031905 TI - Fibroblast growth factor 21 decreases after liver fat reduction via growth hormone augmentation. AB - OBJECTIVE: Fibroblast growth factor 21 (FGF21) ameliorates steatohepatitis but is increased in humans with fatty liver, potentially due to compensatory mechanisms and/or FGF21 resistance. Further, animal models suggest that GH increases serum FGF21. Tesamorelin, a growth hormone releasing hormone agonist, reduces liver fat in HIV-infected individuals. The objectives of this study were to investigate changes in FGF21 during tesamorelin treatment, to elucide the interplay between FGF21, GH augmentation, and liver fat reduction in humans. METHODS: 50 HIV infected men and women with increased abdominal adiposity participated in this randomized, placebo-controlled trial of tesamorelin, 2mg vs. identical placebo daily for six months. Fasting laboratory measures, liver fat by 1H-magnetic resonance spectroscopy, and visceral adipose tissue (VAT) by computed tomography were obtained. Euglycemic hyperinsulinemic clamp was performed in a randomly selected subset. RESULTS: At baseline, serum log10 FGF21 was significantly associated with log10 liver fat (r=0.32, p=0.03). Log10 FGF21 tended to decrease in the tesamorelin group compared to placebo (p=0.06). Among the entire cohort, reductions in FGF21 were significantly associated with reductions in liver fat (rho=0.41, p=0.01), log10 gamma glutamyl tran speptidase (GGT, r=0.40, p=0.009), and FIB4 index (r=0.37, p=0.02). CONCLUSIONS: In HIV-infected individuals, FGF21 is significantly positively associated with liver fat. FGF21 decreases in association with reductions in liver fat, GGT, and FIB4, suggesting that FGF21 is upregulated in the context of steatosis and steatohepatitis and is reduced when these conditions improve. Moreover, these data suggest that tesamorelin improves liver fat via pathways other than increasing serum FGF21. TRIAL REGISTRATION: clinicaltrials.govNCT01263717. PMID- 29031908 TI - Intrauterine air impairs embryonic postimplantation development in mice. AB - OBJECTIVE: Although most embryologists load air bubbles into the catheter along with embryos during embryo transfer, the effects of these air bubbles on embryo transfer success rate are not clear. STUDY DESIGN: Air bubbles were nonsurgically injected into unilateral uterine horns of mice to demonstrate the negative effects of intrauterine air bubbles on embryonic development. RESULTS: Our data showed that when air bubbles are nonsurgically injected into unilateral uterine horns of pregnant 4days mice the litter size is significantly decreased. Four days after the introduction of air, abnormal decidua and dead conceptuses were detected in the uterine horns receiving the air bubbles. In addition, intrauterine air also significantly impaired murine embryo transfer success rates, and induced an increase in endometrial capillary permeability and decidualization in mice on day 4 of pseudopregnancy. These results strongly indicated that the air bubbles loaded into embryo transfer catheters to bracket the embryo-containing medium may have negative effect on embryonic implantation and development. CONCLUSIONS: Intrauterine air impaired murine embryonic postimplantation development, and this provided some clues for improving embryo transfer techniques in human. PMID- 29031909 TI - The retromer subunit Vps26 mediates Notch signaling during Drosophila oogenesis. AB - During endocytosis, molecules are internalized by the cell through the invagination of the plasma membrane. Endocytosis is required for proper cell function and for normal development in Drosophila. One component of the endocytic pathway is the retromer complex, which recycles transmembrane proteins to other parts of the cell such as the plasma membrane and the trans-Golgi network. Previous studies have shown that mutations to the retromer complex result in developmental defects in Drosophila. In humans, retromer dysfunction has been implicated in Alzheimer's and Parkinson's disease, but little is known about the role of the retromer complex in Drosophila oogenesis. In the current project, we examined the role of the retromer protein Vps26 in oogenesis by characterizing the phenotype of vps26 germline clones. Immunofluorescence was used to visualize the expression of membrane proteins and vesicular trafficking markers in mutant egg chambers. We find that vps26 germline clones exhibit a signaling defect between the germline cells and follicle cells indicated by an increase in LysoTracker staining of the border cells in the mutants. We show that this signaling defect in vps26 mutants may be the result of impaired Notch signaling based on the misexpression of multiple proteins in the Notch signaling pathway in vps26 mutants. PMID- 29031910 TI - Scanning distortion correction in STEM images. AB - Various disturbances do exist in the image taking process of scanning transmission electron microscopes (STEM), which seriously reduces the resolution and accuracy of STEM images. In this paper, a deep understanding of the scanning distortion influence on the real and reciprocal spaces of STEM images is achieved via theoretical modeling and simulation. A scanning distortion correction algorithm is further developed based on two images scanned along perpendicular directions, which is able to effectively correct scanning distortion induced deviations and significantly increase the signal to noise ratio of STEM images. PMID- 29031911 TI - Gene polymorphisms of DISC1 is associated with schizophrenia: Evidence from a meta-analysis. AB - BACKGROUND: Previous studies suggest an association between Disrupted in schizophrenia 1 (DISC1) polymorphisms and schizophrenia (SCZ). However, the available data are often inconsistent, regarding the difference in sample size, ethnicity, genotyping method, etc. Thus, we carried out a meta-analysis to determine whether DISC1 polymorphisms contributed susceptibility to SCZ. METHODS: A methodical literature review was operated using the English and Chinese core electronic databases. Odds ratios (ORs) with 95% confidence intervals (CIs) were applied to determine the correlation between DISC1 gene polymorphisms and SCZ susceptibility. Subgroup analyses were carried out by stratification of ethnicity. P values were Bonferroni adjusted to account for multiple testing. Publication bias was evaluated by funnel plots, Egger's test and the trim and fill method. RESULTS: Meta-analyses results suggested that DISC1 polymorphisms (rs821616 and rs821597) increased SCZ risk in overall populations. In subgroups of ethnicity, DISC1 polymorphisms (rs821616 and rs821597) was associated with susceptibility to SCZ among the Chinese population (for rs821616: TT+AT vs. AA: OR=1.338, 95% CI=1.124-1.592, P=0.001; T vs. A: OR=1.300, 95% CI=1.124-1.504, P<0.000; for rs821597: AA+AG vs. GG: OR=1.508, 95% CI=1.268-1.794, P<0.001; A vs. G: OR=1.345, 95% CI=1.184-1.527, P<0.001). A positive correlation was also observed between the single marker rs821616 and SCZ among the Japanese population in the recessive model (TT vs. AT+AA: OR=1.524, 95% CI=1.185-1.959, P=0.001). There was no significant relationship between other DISC1 polymorphisms (rs3738401, rs2273890, rs3738398, rs3738402, rs2492367, rs843979, rs3737597, rs4658971, rs1538979, rs1000731 and rs3738399) and SCZ. CONCLUSIONS: DISC1 polymorphisms increased a risk of SCZ, especially in the Chinese population. In order to further corroborate our findings, large well-designed epidemiological studies are needed. PMID- 29031912 TI - The association of beta-arrestin2 polymorphisms with response to antidepressant treatment in depressed patients. AB - The study of genetic polymorphisms involved in antidepressants (AD) response is essential to provide a personalized medicine approach in the field of depression. beta-arrestin 2 (ARRB2) is a candidate gene in the pharmacogenetics of AD as it is involved in the signaling cascade downstream of numerous neurotransmitter receptors. We investigated the association between five ARRB2 single nucleotide polymorphisms (SNPs): rs1045280, rs2036657, rs4790694, rs3786047 and rs452246, and response to AD treatment in a sample of 569 patients with a major depressive episode treated for 6months. We show that GG/GT patients for rs4522461 (n=534) and AA/AC patients for rs4790694 (n=244) have a lower response to AD than other genotype groups (HDRS score of 10.9 vs 8.0 after 6months, multivariate analysis: p=0.03; 12.2 vs 9.6, p=0.02, respectively). These data provide additional evidence that beta-arrestin 2 is a regulator of intracellular signal transduction processes involved in AD treatment. PMID- 29031913 TI - Chronic pain and pain processing in Parkinson's disease. AB - Pain is experienced by the vast majority of patients living with Parkinson's disease. It is most often of nociceptive origin, but may also be ascribed to neuropathic (radicular or central) or miscellaneous sources. The recently validated King's Parkinson's Disease Pain Scale is based on 7 domains including musculoskeletal pain, chronic body pain (central or visceral), fluctuation related pain, nocturnal pain, oro-facial pain, pain with discolouration/oedema/swelling, and radicular pain. The basal ganglia integrate incoming nociceptive information and contribute to coordinated motor responses in pain avoidance and nocifensive behaviors. In Parkinson's disease, nigral and extra-nigral pathology, involving cortical areas, brainstem nuclei, and spinal cord, may contribute to abnormal central nociceptive processing in patients experiencing pain or not. The dopamine deficit lowers multimodal pain thresholds that are amenable to correction following levodopa dosing. Functional brain imaging with positron emission tomography following administration of H215O revealed abnormalities in the sensory discriminative processing of pain (insula/SII), as well as in the affective motivational processing of pain (anterior cingulate cortex, prefrontal cortex). Pain management is dependent on efforts invested in diagnostic accuracy to distinguish nociceptive from neuropathic pain. Treatment requires an integrated approach including strategies to lessen levodopa-related response fluctuations, in addition to other pharmacological and non-pharmacological options such as deep brain stimulation and rehabilitation. PMID- 29031914 TI - Population Health and Tailored Medical Care in the Home: the Roles of Home-Based Primary Care and Home-Based Palliative Care. AB - With the growth of value-based care, payers and health systems have begun to appreciate the need to provide enhanced services to homebound adults. Recent studies have shown that home-based medical services for this high-cost, high-need population reduce costs and improve outcomes. Home-based medical care services have two flavors that are related to historical context and specialty background home-based primary care (HBPC) and home-based palliative care (HBPalC). Although the type of services provided by HBPC and HBPalC (together termed "home-based medical care") overlap, HBPC tends to encompass longitudinal and preventive care, while HBPalC often provides services for shorter durations focused more on distress management and goals of care clarification. Given workforce constraints and growing demand, both HBPC and HBPalC will benefit from working together within a population health framework-where HBPC provides care to all patients who have trouble accessing traditional office practices and where HBPalC offers adjunctive care to patients with high symptom burden and those who need assistance with goals clarification. Policy changes that support provision of medical care in the home, population health strategies that tailor home-based medical care to the specific needs of the patients and their caregivers, and educational initiatives to assure basic palliative care competence for all home based medical providers will improve access and reduce illness burden to this important and underrecognized population. PMID- 29031915 TI - Experimental and Monte Carlo-based determination of the beam quality specifier for TomoTherapyHD treatment units. AB - Reference dosimetry by means of clinical linear accelerators in high-energy photon fields requires the determination of the beam quality specifier TPR20,10, which characterizes the relative particle flux density of the photon beam. The measurement of TPR20,10 has to be performed in homogenous photon beams of size 10*10cm2 with a focus-detector distance of 100cm. These requirements cannot be fulfilled by TomoTherapy treatment units from Accuray. The TomoTherapy unit provides a flattening-filter-free photon fan beam with a maximum field width of 40cm and field lengths of 1.0cm, 2.5cm and 5.0cm at a focus-isocenter distance of 85cm. For the determination of the beam quality specifier from measurements under nonstandard reference conditions Sauer and Palmans proposed experiment-based fit functions. Moreover, Sauer recommends considering the impact of the flattening filter-free beam on the measured data. To verify these fit functions, in the present study a Monte Carlo based model of the treatment head of a TomoTherapyHD unit was designed and commissioned with existing beam data of our clinical TomoTherapy machine. Depth dose curves and dose profiles were in agreement within 1.5% between experimental and Monte Carlo-based data. Based on the fit functions from Sauer and Palmans the beam quality specifier TPR20,10 was determined from field sizes 5*5cm2, 10*5cm2, 20*5cm2 and 40*5cm2 based on dosimetric measurements and Monte Carlo simulations. The mean value from all experimental values of TPR20,10 resulted in TPR20,10-=0.635+/-0.4%. The impact of the non-homogenous field due to the flattening-filter-free beam was negligible for field sizes below 20*5cm2. The beam quality specifier calculated by Monte Carlo simulations was TPR20,10=0.628 and TPR20,10=0.631 for two different calculation methods. The stopping power ratio water-to-air sw,aDelta directly depends on the beam quality specifier. The value determined from all experimental TPR20,10 data was sw,aDelta=1.126+/-0.1%, which is in excellent agreement with the value directly calculated by Monte Carlo simulations. The agreement is a good indication that the equations proposed by Sauer and Palmans are able to calculate the beam quality specifier under reference conditions from measurements in arbitrary photon field sizes with high accuracy and are applicable for the TomoTherapyHD treatment unit. PMID- 29031916 TI - Image guided adaptive external beam radiation therapy for cervix cancer: Evaluation of a clinically implemented plan-of-the-day technique. AB - BACKGROUND: Radiotherapy for cervix cancer is challenging in patients exhibiting large daily changes in the pelvic anatomy, therefore adaptive treatments (ART) have been proposed. The aim of this study was the clinical implementation and subsequent evaluation of plan-of-the-day (POTD)-ART for cervix cancer in supine positioning. The described workflow was based on standard commercial equipment and current quality assurance (QA) methods. MATERIALS AND METHODS: A POTD strategy, which employs a VMAT plan library consisting of an empty bladder plan, a full bladder plan and a motion robust backup plan, was developed. Daily adaption was guided by cone beam computed tomography (CBCT) imaging after which the best plan from the library was selected. Sixteen patients were recruited in a clinical study on ART, for nine POTD was applied due to their large organ motion derived from two computed tomography (CT) scans with variable bladder filling. All patients were treated to 45Gy in 25 fractions. Plan selection frequencies over the treatment course were analyzed. Daily doses in the rectum, bladder and cervix-uterus target (CTV-T) were derived and compared to a simulated non-adapted treatment (non-ART), which employed the robust plan for each fraction. Additionally, the adaption consistency was determined by repeating the plan selection procedure one month after treatment by a group of experts. ART-specific QA methods are presented. RESULTS: 225 ART fractions with CBCTs were analyzed. The empty bladder plan was delivered in 49% of the fractions in the first treatment week and this number increased to 78% in the fifth week. The daily coverage of the CTV-T was equivalent between ART and the non-ART simulation, while the daily total irradiated volume V42.75Gy (95% of prescription dose) was reduced by a median of 87cm3. The median delivered V42.75Gy was 1782cm3. Daily delivered doses (V42.75Gy, V40Gy, V30G) to the organs at risk were statistically significantly reduced by ART, with a median difference in daily V42.75Gy in rectum and bladder of 3.2% and 1.1%, respectively. The daily bladder V42.75Gy and V40Gy were decreased by more than 10 percent points in 30% and 24% of all fractions, respectively, through ART. The agreement between delivered plans and retrospective expert-group plan selections was 84%. CONCLUSION: A POTD-ART technique for cervix cancer was successfully and safely implemented in the clinic and evaluated. Improved normal tissue sparing compared to a simulated non-ART treatment could be demonstrated. Future developments should focus on commercial automated software solutions to allow for a more widespread adoption and to keep the increased workload manageable. PMID- 29031917 TI - How Good Were Candidate Gene Guesses in Schizophrenia Genetics? PMID- 29031918 TI - Polygenic Risk Scores in Psychiatry. PMID- 29031919 TI - Parsing Anatomical Dysconnectivity in Psychosis. PMID- 29031920 TI - Kraepelin's Crumbling Twin Pillars: Using Biology to Reconstruct Psychiatric Nosology From the Bottom Up. PMID- 29031921 TI - Disconnectionism in Biological Psychiatry. PMID- 29031922 TI - Catechin loaded PLGA submicron-sized fibers reduce levels of reactive oxygen species induced by MWCNT in vitro. AB - Reactive oxygen species (ROS) are common products of normal aerobic cellular metabolism, but high levels of ROS lead to oxidative stress and cellular damage. Therefore, effective antioxidant therapies are needed to prevent ROS overproduction. This study reports the development of poly(l-lactide-co glycolide) (PLGA) bicomponent fibers loaded with selected amounts of the natural polyphenolic antioxidant catechin. Thereby a novel route based on emulsion electrospinning is investigated to obtain tailored and sustained release rates for chatechin. The activity of the released catechin was assessed for its influence on multi-walled carbon nanotube (MWCNT) induced formation of reactive oxygen species (ROS) in the human alveolar epithelial the cell line A549. Homogenous fiber morphologies were obtained at specified ranges of PLGA concentrations within the emulsions including the formation of a core - sheath structure localizing the drug within the fiber core. In vitro measurements of the delivery showed moderate burst release kinetics in a first phase followed by a linear and smooth release at long term. In combination with polymer degradation studies a mostly diffusion controlled release mechanism was revealed exhibiting only marginal degradation of the polymer during the time span of the drug delivery. As a proof of concept, the activity of released catechin in A549 cells stimulated with MWCNTs was determined and revealed a high reduction of ROS production in a dose dependent manner. This effect diminishes over time indicating a depletion of catechin. PMID- 29031923 TI - DEAE-Dextran coated paclitaxel nanoparticles act as multifunctional nano system for intranuclear delivery to triple negative breast cancer through VEGF and NOTCH1 inhibition. AB - Triple negative breast cancer revolution has identified a plethora of therapeutic targets making it apparent that a single target for its treatment could be rare hence creating an urge to develop robust technologies for combination drug therapy. Paclitaxel, hailed as the most significant advancement in chemotherapy faces several underpinnings due to its low solubility and permeability. Advancing research has demonstrated the role of interferons in cancer. DEAE-Dextran, an emerging molecule with evidence of interferon induction was utilized in the present study to develop a nanoformulation in conjugation with paclitaxel to target multiple therapeutic pathways, with diminution of paclitaxel adverse effects and develop a specific targeted nano system. Evidently, it was demonstrated that DEAE-Dextran coated nanoformulation portrays significant synergistic cytotoxicity in the various cell lines. Moreover, overcoming the activation of ROS by paclitaxel, the combination drug therapy more effectively inhibited ROS through beta-interferon induction. The nanoformulation was further conjugated to FITC for internalization studies which subsequently indicated maximum cellular uptake at 60min post treatment demonstrated by green fluorescence from FITC lighting up the nuclear membrane. Precisely, the mechanistic approach of nuclear-targeted nanoformulation was evaluated by in vivo xenograft studies which showed a synergistic release of beta-interferon at the target organ. Moreover, the combination nanoformulation inculcated multiple mechanistic approaches through VEGF and NOTCH1 inhibition along with dual beta and gamma-interferon overexpression. Overall, the combination therapy may be a promising multifunctional nanomaterial for intranuclear drug delivery in TNBC. PMID- 29031924 TI - Evaluation of cervical mucus and reproductive efficiency of seasonally anovular dairy goats after short-term progestagen-based estrous induction protocols with different gonadotropins. AB - The use of three different gonadotropins was tested for estrous induction in dairy goats during the non-breeding season. All does received an injection of 30 MUg of d-cloprostenol and intravaginal sponges containing 60mg of medroxyprogesterone acetate (MAP) for 6 d plus 20 IU of porcine FSH (pFSH), 200 IU of eCG or 250 IU of hCG 24h before sponge removal. In Experiment 1 (n=24), ovarian ultrasound parameters were recorded and cervical mucus was evaluated daily for 5 d after sponge removal or until ovulation. In Experiment 2 (n=80), reproductive efficiency of artificially inseminated or naturally mated does was assessed. The mean interval from sponge removal to ovulation (73.5+/-23.7 h), number of ovulations (1.6+/-0.7) and ovulatory follicle diameter (7.2+/-0.8 mm) did not vary (P >0.05) among the three groups. At ovulation, cervical mucus had crystalline-striated to striated (22.2%), striated to striated-caseous (72.2%) and striated-caseous to caseous (5.6%) appearance. The largest follicle diameter was greater (P <0.05) in does with crystalline (6.7+/-1.4 mm), crystalline striated (7.2+/-1.1 mm) or striated (7.3+/-1.3 mm) mucus than in those with striated-caseous (5.3+/-1.4 mm) or caseous (4.5+/-1.1 mm) mucus. Percentage of animals exhibiting estrus (92.5%) and conception rate (60.8%) were similar (P >0.05) among the three gonadotropins groups. Results of this study support the use of eCG (200 IU), hCG (250 IU) and pFSH (20 IU) for the estrous induction protocols in dairy goats during the non-breeding season. Cervical mucus evaluation can be used as an additional method to determine the optimal time for artificial insemination in goats. PMID- 29031925 TI - Attributes of excellent surgical trainers: An analysis of outstanding trainers. AB - Excellent surgical trainers play a key role in teaching, mentoring and inspiring the next generation of trainee surgeons. Although there are differences in approach, personality and technique among trainers, common themes exist for those that truly shine as examples of good training. The good surgical trainer has long been the "unsung hero" of patient safety, inspiring and imparting wisdom and skill in trainee surgeons, and instilling a sense of confidence and compassion. In order to recognise exceptional trainers, the Association of Surgeons in Training (ASiT) introduced the Silver Scalpel Award in 2000. The award acknowledges talented trainers who go the "extra mile" for their trainees, and the selection process includes both written nominations and structured interviews with the nominees. We wished to identify what makes the best trainers excellent, to see if these attributes could be used to develop recommendations on how to train and how to support trainers. Here we present an outline of key attributes of an excellent surgical trainer, based on qualitative synthesis of the interview sheets from Silver Scalpel interviews. These results clearly highlight that good trainers are first and foremost good doctors, and that good training goes hand-in hand with excellent patient care. This symbiotic relationship between training and patient outcomes should be acknowledged, and trainers should be supported by their employers to empower them to carry out their dual roles of training and patient care to the best of their ability. Trainers are key role models to inspire the next generation of surgeons and exceptional trainers should be celebrated. PMID- 29031926 TI - Monitoring driver fatigue using a single-channel electroencephalographic device: A validation study by gaze-based, driving performance, and subjective data. AB - Driver fatigue can impair performance as much as alcohol does. It is the most important road safety concern, causing thousands of accidents and fatalities every year. Thanks to technological developments, wearable, single-channel EEG devices are now getting considerable attention as fatigue monitors, as they could help drivers to assess their own levels of fatigue and, therefore, prevent the deterioration of performance. However, the few studies that have used single channel EEG devices to investigate the physiological effects of driver fatigue have had inconsistent results, and the question of whether we can monitor driver fatigue reliably with these EEG devices remains open. Here, we assessed the validity of a single-channel EEG device (TGAM-based chip) to monitor changes in mental state (from alertness to fatigue). Fifteen drivers performed a 2-h simulated driving task while we recorded, simultaneously, their prefrontal brain activity and saccadic velocity. We used saccadic velocity as the reference index of fatigue. We also collected subjective ratings of alertness and fatigue, as well as driving performance. We found that the power spectra of the delta EEG band showed an inverted U-shaped quadratic trend (EEG power spectra increased for the first hour and half, and decreased during the last thirty minutes), while the power spectra of the beta band linearly increased as the driving session progressed. Coherently, saccadic velocity linearly decreased and speeding time increased, suggesting a clear effect of fatigue. Subjective data corroborated these conclusions. Overall, our results suggest that the TGAM-based chip EEG device is able to detect changes in mental state while performing a complex and dynamic everyday task as driving. PMID- 29031927 TI - Particle radiotherapy, a novel external radiation therapy, versus liver resection for hepatocellular carcinoma accompanied with inferior vena cava tumor thrombus: A matched-pair analysis. AB - BACKGROUND: Hepatocellular carcinoma accompanied with inferior vena cava tumor thrombus carries a dismal prognosis, and the feasibility of local treatment has remained controversial. The present study aimed to compare the outcomes of particle radiotherapy and liver resection in patients with hepatocellular carcinoma with inferior vena cava tumor thrombus. METHODS: Thirty-one and 19 patients, respectively, underwent particle radiotherapy and liver resection for hepatocellular carcinoma with inferior vena cava tumor thrombus. A matched-pair analysis was undertaken to compare the short- and long-term outcomes according to tumor stage determined using the tumor-node-metastasis classification. RESULTS: Both stages IIIB and IV (IVA and IVB) patients were well-matched for 12 factors, including treatment policy and patient and tumor characteristics. The median survival time of matched patients with stage IIIB tumors in the particle radiotherapy group was greater than that in the liver resection group (748 vs 272 days, P = .029), whereas no significant difference was observed in the median survival times of patients with stage IV tumors (239 vs 311 days, respectively). There were significantly fewer treatment-related complications of grade 3 or greater in the particle radiotherapy group (0%) than in the liver resection group (26%). CONCLUSION: Particle radiotherapy is potentially preferable in hepatocellular carcinoma patients with stage IIIB inferior vena cava tumor thrombus and at least equal in efficiency to liver resection in those with stage IV disease, while causing significantly fewer complications. Considering the relatively high survival and low invasiveness of particle radiotherapy when compared to liver resection, this approach may represent a novel treatment modality for hepatocellular carcinoma with inferior vena cava tumor thrombus. PMID- 29031928 TI - The role of purified Clostridium difficile glucosylating toxins in disease pathogenesis utilizing a murine cecum injection model. AB - Most pathogenic Clostridium difficile produce two major exotoxins TcdA and TcdB, in the absence of which the bacterium is non-pathogenic. While it is important to investigate the role of each toxin in the pathogenesis of C. difficile infection (CDI) using isogenic strains, it is impossible to precisely control the expression levels of individual toxins and exclude bacterial factors that may contribute to the toxins' effects during infection. In this study, we utilized an acute intestinal disease model by injecting purified toxins directly into mouse cecum after a midline laparotomy. We evaluated the physical condition of mice by clinical score and survival, and the intestinal tissue damage and inflammation by histology. Depending on the dose of the toxins, mice developed mild to severe colitis, experienced diarrhea or rapidly died. We found that both purified TcdA and TcdB were able to induce clinical disease, intestinal inflammation, and tissue damage that resembled CDI. TcdA was significantly faster in inducing intestinal inflammation and tissue damage, and was approximately five times more potent than TcdB in terms of inducing severe gut disease and death outcomes in mice. Moreover, we found that the two toxins had significant synergistic effects on disease induction. Comparison of the in vivo toxicity of TcdB from clinical strains revealed that TcdB from an epidemic RT 027 strain was more toxic than the others. Our study thus demonstrates that both TcdA and TcdB, independent of other factors from C. difficile bacterium, are able to cause disease that resembles CDI and highlights the importance of targeting both toxins for vaccines and therapeutics against the disease. PMID- 29031929 TI - Permanent His-bundle pacing as an alternative to biventricular pacing for cardiac resynchronization therapy: A multicenter experience. AB - BACKGROUND: Cardiac resynchronization therapy (CRT) using biventricular pacing (BVP) is effective in patients with heart failure, bundle branch block (BBB), or right ventricular pacing. Permanent His-bundle pacing (HBP) has been reported as an alternative option for CRT. OBJECTIVE: The purpose of this study was to assess the feasibility and outcomes of HBP in CRT eligible or failed patients. METHODS: HBP was attempted as a rescue strategy in patients with failed left ventricular lead or nonresponse to BVP (group I), or as a primary strategy in patients with AV block, BBB, or high ventricular pacing burden as an alternative to BVP (group II) in patients with indications for CRT. Implant characteristics, New York Heart Association functional class, and echocardiographic data were assessed in follow up. RESULTS: HBP was successful in 95 of 106 patients (90%): 30 in group I and 65 in group II. Mean age was 71 +/- 12 years and 30% were female, with BBB in 45%, paced rhythm in 39%, and AV block in 16%. His capture and BBB correction thresholds were 1.4 +/- 0.9 V and 2.0 +/- 1.2 V at 1 ms, respectively. During mean follow-up of 14 months, both groups demonstrated significant narrowing of QRS from 157 +/- 33 ms to 117 +/- 18 ms (P = .0001), increase in left ventricular ejection fraction from 30% +/- 10% to 43% +/- 13% (P = .0001), and improvement in New York Heart Association functional class from 2.8 +/- 0.5 to 1.8 +/- 0.6 (P = .0001) with HBP. Lead-related complications occurred in 7 patients. CONCLUSION: Permanent HBP is a promising alternative for CRT. HBP may be considered as a rescue strategy for failed BVP and may be a reasonable primary alternative to BVP for CRT. PMID- 29031930 TI - Integrated structural and expression analysis implicate specific synaptic pathway in major depressive disorder. PMID- 29031932 TI - Appropriate use of opioid drugs: The importance of detecting vulnerable patients and health education. PMID- 29031931 TI - Global analysis of AGO2-bound RNAs reveals that miRNAs induce cleavage of target RNAs with limited complementarity. AB - Among the four Argonaute family members in mammals, only AGO2 protein retains endonuclease activity and facilitates cleavage of target RNAs base-pairing with highly complementary guide RNAs. Despite the deeply conserved catalytic activity, only a small number of targets have been reported to extensively base pair with cognate miRNAs to be cleaved by AGO2. Here, we analyzed AGO2-bound RNAs by CrossLinking ImmunoPrecipitation (CLIP) of genetically modified cells that express epitope-tagged AGO2 from the native genomic locus. We found that HMGA2 mRNA is cleaved by AGO2 loaded with let-7 and miR-21. In contrast to the generally accepted notion, the base-pairing from the seed region to the cleavage site, rather than perfect or near perfect complementarity, was required for cleavage of the target mRNA in cells. Non-templated addition of nucleotides at the 3' end of the cleaved RNA was observed, further supporting the AGO2-mediated cleavage. Based on the observation that the limited complementarity is the minimum requirement for cleavage, we found that AGO2-mediated cleavage of targets is more common than previously thought. Our result may explain the vital role of endonuclease activity in controlling miRNA-mediated gene regulation. PMID- 29031933 TI - Relevant models and elements of integrated care for multi-morbidity: Results of a scoping review. AB - BACKGROUND: In order to provide adequate care for the growing group of persons with multi-morbidity, innovative integrated care programmes are appearing. The aims of the current scoping review were to i) identify relevant models and elements of integrated care for multi-morbidity and ii) to subsequently identify which of these models and elements are applied in integrated care programmes for multi-morbidity. METHODS: A scoping review was conducted in the following scientific databases: Cochrane, Embase, PubMed, PsycInfo, Scopus, Sociological Abstracts, Social Services Abstracts, and Web of Science. A search strategy encompassing a) models, elements and programmes, b) integrated care, and c) multi morbidity was used to identify both models and elements (aim 1) and implemented programmes of integrated care for multi-morbidity (aim 2). Data extraction was done by two independent reviewers. Besides general information on publications (e.g. publication year, geographical region, study design, and target group), data was extracted on models and elements that publications refer to, as well as which models and elements are applied in recently implemented programmes in the EU and US. RESULTS: In the review 11,641 articles were identified. After title and abstract screening, 272 articles remained. Full text screening resulted in the inclusion of 92 articles on models and elements, and 50 articles on programmes, of which 16 were unique programmes in the EU (n=11) and US (n=5). Wagner's Chronic Care Model (CCM) and the Guided Care Model (GCM) were most often referred to (CCM n=31; GCM n=6); the majority of the other models found were only referred to once (aim 1). Both the CCM and GCM focus on integrated care in general and do not explicitly focus on multi-morbidity. Identified elements of integrated care were clustered according to the WHO health system building blocks. Most elements pertained to 'service delivery'. Across all components, the five elements referred to most often are person-centred care, holistic or needs assessment, integration and coordination of care services and/or professionals, collaboration, and self-management (aim 1). Most (n=10) of the 16 identified implemented programmes for multi-morbidity referred to the CCM (aim 2). Of all identified programmes, the elements most often included were self-management, comprehensive assessment, interdisciplinary care or collaboration, person-centred care and electronic information system (aim 2). CONCLUSION: Most models and elements found in the literature focus on integrated care in general and do not explicitly focus on multi-morbidity. In line with this, most programmes identified in the literature build on the CCM. A comprehensive framework that better accounts for the complexities resulting from multi-morbidity is needed. PMID- 29031934 TI - "We don't have the infrastructure to support them at home": How health system inadequacies impact on long-term care admissions of people with dementia. AB - OBJECTIVES: The influence of healthcare system factors on long-term care admissions has received relatively little attention. We address this by examining how inadequacies in the healthcare system impact on long-term care admissions of people with dementia. This is done in the context of the Irish healthcare system. METHODS: Thirty-eight qualitative in-depth interviews with healthcare professionals and family carers were conducted. Interviews focused on participants' perceptions of the main factors which influence admission to long term care. Interviews were analysed thematically. RESULTS: The findings suggest that long-term care admissions of people with dementia may be affected by inadequacies in the healthcare system in three ways. Firstly, participants regarded the economic crisis in Ireland to have exacerbated the under-resourcing of community care services. These services were also reported to be inequitable. Consequently, the effectiveness of community care was seen to be limited. Secondly, such limits in community care appear to increase acute hospital admissions. Finally, admission of people with dementia to acute hospitals was believed to accelerate the journey towards long-term care. CONCLUSIONS: Inadequacies in the healthcare system are reported to have a substantial impact on the threshold for long-term care admissions. The findings indicate that we cannot fully understand the factors that predict long-term care admission of people with dementia without accounting for healthcare system factors on the continuation of homecare. PMID- 29031935 TI - Workplace mental health training for managers and its effect on sick leave in employees: a cluster randomised controlled trial. AB - BACKGROUND: Mental illness is one of the most rapidly increasing causes of long term sickness absence, despite improved rates of detection and development of more effective interventions. However, mental health training for managers might help improve occupational outcomes for people with mental health problems. We aimed to investigate the effect of mental health training on managers' knowledge, attitudes, confidence, and behaviour towards employees with mental health problems, and its effect on employee sickness absence. METHODS: We did a cluster randomised controlled trial of manager mental health training within a large Australian fire and rescue service, with a 6-month follow-up. Managers (clusters) at the level of duty commander or equivalent were randomly assigned (1:1) using an online random sequence generator to either a 4-h face-to-face RESPECT mental health training programme or a deferred training control group. Researchers, managers, and employees were not masked to the outcome of randomisation. Firefighters and station officers supervised by each manager were included in the study via their anonymised sickness absence records. The primary outcome measure was change in sickness absence among those supervised by each of the managers. We analysed rates of work-related sick leave and standard sick leave seperately, with rate being defined as sickness absence hours divided by the sum of hours of sickness absence and hours of attendance. This trial was registered with the Australian New Zealand Clinical Trials Registry (ACTRN12613001156774). FINDINGS: 128 managers were recruited between Feb 18, 2014, and May 17, 2014. 46 (71%) of 65 managers allocated to the intervention group received the intervention, and 42 (67%) of 63 managers allocated to the control group were entered in the deferred training group. Managers and their employees were followed up and reassessed at 6 months after randomisation. 25 managers (1233 employees) in the intervention group and 19 managers (733 employees) in the control group provided data for the primary analysis. During the 6-month follow-up, the mean rate of work-related sick leave decreased by 0.28 percentage points (pp) from a pre-training mean of 1.56% (SE 0.23) in the intervention group and increased by 0.28 pp from 0.95% (0.20) in the control group (p=0.049), corresponding to a reduction of 6.45 h per employee per 6 months. The mean percentage of standard sick leave increased by 0.48 pp from 4.97% (0.22) in the intervention group and by 0.31 pp from 5.27% (0.21) in the control group (p=0.169). INTERPRETATION: A 4-h manager mental health training programme could lead to a significant reduction in work-related sickness absence, with an associated return on investment of L9.98 for each pound spent on such training. Further research is needed to confirm these findings and test their applicability in other work settings. FUNDING: NSW Health and Employers Mutual Ltd. PMID- 29031936 TI - Workplace mental health programmes: the role of managers. PMID- 29031937 TI - Payer database and geospatial analysis to evaluate practice patterns in treating allergy in North Carolina. AB - OBJECTIVE: The objective of this study was to characterize the delivery of allergy care in North Carolina using a large payer charge database and visualization techniques. STUDY DESIGN: Geospatial database analysis. SETTING: North Carolina State claims database. SUBJECTS & METHODS: Medical data from the 2013 FAIR Health National Private Insurance Claims (FH NPIC) database for North Carolina was mined for CPT codes and charges for allergy testing, and for the preparation and provision of allergen immunotherapy. Provider and patient variables were analyzed. Analyses were performed to compare differences in allergy care delivery. A visualization strategy complemented the analytic approach. RESULTS: 162,037 CPT charge entries were analyzed. Allergy-immunology specialists were the most common provider specialty to perform allergy immunotherapy treatments (68.9%, p<0.05). Among other specialties, there were no significant differences between specialists performing immunotherapy when comparing otolaryngology, family practice, and internal medicine (16.3%; 4.6%; 2.6%; p>0.05). Providers with an M.D. degree were the most common provider type. The three most commonly treated diagnoses were allergic rhinitis variants. Females were more likely to receive allergy treatments versus males (55.9% vs. 51.5%; p<0.001), and were more likely to receive allergy testing (65.3% vs. 34.7%: p<0.005). Internal medicine providers charged higher than any other specialist type (p<0.05) for allergy immunotherapy. CONCLUSIONS: Using a large payer database coupled with visualization techniques was an efficient approach to characterizing the state-wide provision patterns of allergy diagnostic and therapy services in North Carolina. This first tier approach to efficiently exploring questions and describing populations is valuable. PMID- 29031938 TI - Design, synthesis and antiproliferative effect of 17beta-amide derivatives of 2 methoxyestradiol and their studies on pharmacokinetics. AB - A series of 17beta-amide-2-methoxyestradiol compounds were synthesized with an aim to enhance the antiproliferative effect of 2-methoxyestradiol. The antiproliferative activity of 2-methoxyestradiol analogs against human cancer cells was investigated. 2-methoxy-3-benzyloxy-17beta-chloroacetamide-1,3,5(10) triene (5e) and 2-methoxy-3-hydroxy-17beta-butyramide-1,3,5(10)-triene (6c) had comparable or better antitumor activity than 2-methoxyestradiol. The elimination half-life of 6c (t1/2beta=240.93min) is ten times longer than 2-ME and the area under the curve was seven times (AUC0-tmin=2068.20+/-315.74MUgmL-1min) higher than 2-ME, respectively. Whereas 5e had similar pharmacokinetic behavior with 2 ME (t1/2beta=22.28min) with a t1/2beta of 29.5 min. 6c had higher blood concentration, longer actuation duration and better suppression rate against S180 mouse ascites tumor than 2-methoxyestradiol. PMID- 29031939 TI - Interest in Interventional Radiology at Different Stages of Training: Possible Implications for the New Integrated Interventional Radiology Residency. AB - PURPOSE: Integrated interventional radiology (IR) residencies recently underwent their second year in the match, the first year of which involved only a limited number of programs. Now that students can choose to enter IR directly, student perceptions of IR vs diagnostic radiology (DR) are of paramount importance. METHODS: We surveyed first- through fourth-year medical students and radiology residents regarding interest in IR vs DR. RESULTS: Students considering a radiological career expressed more interest in IR than DR. Conversely, residents expressed more interest in DR. CONCLUSIONS: Medical student advisors and IR programs should continue to anticipate a high number of applications for integrated IR positions. PMID- 29031940 TI - Ricin-like proteins from the castor plant do not influence liquid chromatography mass spectrometry detection of ricin in forensically relevant samples. AB - The toxic protein ricin (also known as RCA60), found in the seed of the castor plant (Ricinus communis) is frequently encountered in law enforcement investigations. The ability to detect ricin by analyzing its proteolytic (tryptic) peptides by liquid chromatography-tandem mass spectrometry (LC-MS/MS) is well established. However, ricin is just one member of a family of proteins in R. communis with closely related amino acid sequences, including R. communis agglutinin I (RCA120) and other ricin-like proteins (RLPs). Inferring the presence of ricin from its constituent peptides requires an understanding of the specificity, or uniqueness to ricin, of each peptide. Here we describe the set of ricin-derived tryptic peptides that can serve to uniquely identify ricin in distinction to closely-related RLPs and to proteins from other species. Other ricin-derived peptide sequences occur only in the castor plant, and still others are shared with unrelated species. We also characterized the occurrence and relative abundance of ricin and related proteins in an assortment of forensically relevant crude castor seed preparations. We find that whereas ricin and RCA120 are abundant in castor seed extracts, other RLPs are not represented by abundant unique peptides. Therefore, the detection of peptides shared between ricin and RLPs (other than RCA120) in crude castor seed extracts most likely reflects the presence of ricin in the sample. PMID- 29031941 TI - The travel diaries of tetanus and botulinum neurotoxins. AB - Tetanus (TeNT) and botulinum (BoNT) neurotoxins, the causative agents of tetanus and botulism, respectively, are the most potent toxic molecules known to mankind. This extreme potency is attributed to: i) their specificity for essential components of the neurotransmitter release machinery present at vertebrate synapses, and ii) their high-affinity targeting to motor neurons by binding to polysialogangliosides and protein receptors. Comprising the clostridial neurotoxin family, TeNT and BoNTs engage distinct surface receptors and intracellular sorting pathways in neurons. BoNTs bind to the intraluminal domain of specific synaptic vesicle proteins that are exposed to the extracellular milieu upon exocytosis, and are taken up by synaptic vesicle recycling. A sizeable proportion of BoNT molecules remain at the neuromuscular junction, where their protease moiety is released into the cytoplasm, blocking synaptic transmission and causing flaccid paralysis. In contrast, TeNT undergoes binding to specific components of the basal membrane at the neuromuscular junction, is endocytosed into motor neurons and sorted to axonal signalling endosomes. Following this, TeNT is transported to the soma of motor neurons located in the spinal cord or brainstem, and then transcytosed to inhibitory interneurons, where it blocks synaptic transmission. TeNT-induced impairment of inhibitory input leads to hyperactivity of motor neurons, causing spastic paralysis, which is the hallmark of tetanus. This review examines the molecular mechanisms leading to the entry, sorting and intracellular trafficking of TeNT and BoNTs. PMID- 29031942 TI - Morbidity in New Zealand pesticide producers exposed to 2,3,7,8 tetrachlorodibenzo-p-dioxin (TCDD). AB - OBJECTIVES: To conduct a cross-sectional morbidity survey among 245 former employees of a pesticide production plant exposed to 2,3,7,8-tetrachlorodibenzo-p dioxin (TCDD) in New Zealand. METHODS: Demographic factors and health information were collected in face-to-face interviews. TCDD, lipids, thyroid hormones, glucose and immunoglobulin G (IgG) were determined in non-fasting blood. For 111 participants, a neurological examination was conducted. Associations between health outcomes and working in a TCDD exposed job (prevalence 49%) and serum TCDD concentration>=10pg/g lipid (18%) were assessed using logistic regression whilst controlling for age, gender, smoking, body mass index and ethnicity. RESULTS: Diabetes was more common in those who had worked in TCDD exposed jobs (OR 4.0, 95%CI 1.0-15.4) and in those with serum TCDD >=10pg/g (OR 3.1, 95%CI 0.9-10.7). Non-fasting glucose levels >6.6mmol/l were more common in those with TCDD exposed jobs (OR 3.6, 95%CI 1.0-12.9), as were serum free thyroxine 4<12.8pmol/l (OR 4.5, 95%CI 1.4-14.4), triglycerides >1.7mmol/l (OR 2.5, 95%CI 1.1-5.7) and high density lipoprotein cholesterol (HDL) <1mmol/l (OR 4.0, 95%CI 1.2-13.2). IgG was negatively associated with TCDD (linear regression p=0.05). The neurological examination revealed a higher frequency of abnormal reflexes in those with serum TCDD >=10pg/g (OR 4.8, 95%CI 1.1-21.0). CONCLUSIONS: In this occupationally exposed population, TCDD was associated with an increased risk of diabetes and a range of subclinical responses in multiple systems (peripheral nervous system, immune system, thyroid hormones and lipid metabolism), several decades after last exposure. These results need to be interpreted with caution due to the small study size and the cross-sectional nature of the study. PMID- 29031943 TI - Comment on: Systematic review and retrospective validation demonstrate prediction models can predict weight loss after bariatric surgery. PMID- 29031944 TI - Comparison of Lactic Acid Levels in Children with Suspected and Confirmed Intussusception. AB - BACKGROUND: Currently, no laboratory test can identify children with intussusception. Lactic acid is a marker of ischemia in gastrointestinal emergencies. OBJECTIVES: We present a case series comparing lactic acid levels in children with suspected and confirmed intussusception. METHODS: This is a prospective single case series of 39 patients who had suspected intussusception. Patients were eligible if they underwent abdominal ultrasound screening for suspected intussusception. Blood collected at the time of peripheral intravenous line placement was analyzed for lactic acid levels before ultrasound. RESULTS: Thirty-nine patients were enrolled; 16 were diagnosed with intussusception. Mean (+/- standard deviation) lactic acid levels were not significantly different between children with suspected (1.7 +/- 0.69 mmol/L) and confirmed intussusception (1.93 +/- 1.13 mmol/L). CONCLUSIONS: Lactic acid levels cannot identify children with intussusception. PMID- 29031945 TI - Assessing colour preference in Aldabra giant tortoises (Geochelone gigantea). AB - Tortoises perceive different colours and rely on the visual system to find food. However, few studies have considered colour preference in tortoises, especially in land species. The aim of this study is to investigate whether Aldabra giant tortoises (Geochelone gigantea) housed in Parco Natura Viva (VR), an Italian zoological garden, show a specific colour preference in their social context. The study was divided into two different periods in which red and yellow balls of the same size were scattered around in the outdoor enclosure. In the first period, pieces of carrots were placed behind each ball whereas in the second period, carrots were replaced with apples. Data on the frequencies of interaction with red and yellow balls were collected. First, tortoises interacted more with the balls when pieces of apples rather than carrots were hidden behind them. No significant group-level colour preference was found; however, individual-level variation in colour preference was reported. In addition, tortoises interacted significantly more with the yellow balls in the second than in the first period. Food typology seems therefore to play an important role in determining colour preference in chelonians. Research aimed at identifying individual differences in animal preferences might be valuable to improve captive animal husbandry (e.g.: development of enrichment programmes, diets and rewards). PMID- 29031946 TI - Spermatozoa DNA methylation patterns differ due to peripubertal age in bulls. AB - In the dairy industry, using semen as soon as the bull is mature enough to produce it is advantageous for breeding purposes. Mammalian spermatogenesis is a hormone-dependent developmental program in which a complex cascade of events must take place to ensure that germ cells reach the proper stage of development at the proper time. Conventional indicators of semen quality such as sperm cell motility and viability usually improve as bulls mature, meeting quality criteria satisfactorily at around 16 months. Using semen before that age may affect embryo viability, but other changes occurring during the peripubertal period should be considered. Although it is known that establishment of these patterns begins during foetal life, the extent to which sperm cell DNA methylation changes during puberty has not been studied. The aim of this study is to correlate the age of a young bull with the overall DNA methylation pattern of its spermatozoa. Spermatozoa were collected from bulls at the ages of 10 months (early pubertal), 12 months (late pubertal) and 16 months (pubertal). Each animal (n = 4) was compared to itself with 16 months as control. Genome-wide DNA methylation was analyzed by microarray using the EmbryoGENE DNA Methylation Analysis platform. Using a fold change over 1.5 and a 5% FDR p-value correction, a total of 2602 differently methylated regions were found in common between 10 months of age and 16 months of age. No differently methylated regions between 12 months and 16 months of age were found at the same level of statistical significance. We conclude that spermatozoa from bulls aged 10 months have a different epigenetic profile, which could compromise their value. PMID- 29031947 TI - The long-term survival of robotic lobectomy for non-small cell lung cancer: A multi-institutional study. AB - OBJECTIVE: Our objective is to report the world's largest series with the longest follow-up of robotic lobectomy for non-small cell lung cancer (NSCLC). METHODS: This was a multi-institutional retrospective review of a consecutive series of patients from 4 institutions' prospective robotic databases. RESULTS: There were 1339 patients (men 55%, median age 68 years). The median operative time was 136 minutes, median number of lymph nodes was 13 (5 N2 stations and 1 N1), median blood loss was 50 cc, and 4 (0.005%) patients received intraoperative transfusions. Conversions occurred in 116 patients (9%) and for bleeding in 24 (2%). Median length of stay was 3 days. Major morbidity occurred in 8%. The 30 day and 90-day operative mortality was 0.2% and 0.5%, respectively. Follow-up was complete in 99% of patients with a median follow-up of 30 months (range 1-154 months). The 5-year stage-specific survival was: 83% for the 672 patients with stage IA NSCLC, 77% for the 281 patients with stage IB, 68% for the 118 patients with stage IIA, 70% for 99 patients with IIB, 62% for 143 patients with stage IIIA (122 had N2 disease, 73%), and 31% for 8 patients with stage IIIB (none had N3 disease). The cumulative incidence of metastatic NSCLC was 15% (128 patients, 95% confidence interval, 13%-18%). The cumulative incidence of local recurrence in the ipsilateral operated chest was 3% only (26 patients, 95% confidence interval, 2%-5%). CONCLUSIONS: The oncologic results of robotic lobectomy for NSCLC are promising, especially for patients with pathologic N2 disease. However, further follow-up and studies are needed. PMID- 29031948 TI - Severe asthma: looking beyond the amount of medication. PMID- 29031949 TI - Evaluation of Irimedadi Taila as an adjunctive in treating plaque-induced gingivitis. AB - Ayurvedic drugs have been used since ancient times to treat diseases including periodontal diseases. Oral rinses made from ayurvedic medicines are used in periodontal therapy to control bleeding and reduce inflammation. To evaluate the efficacy of herbal preparation (Irimedadi taila) on reduction of plaque induced gingivitis. A total of 100 volunteers with clinical signs of mild to moderate gingivitis were selected and assigned to Group A (only scaling done) and Group B (scaling along with the use of Irimedadi taila). After recording the clinical parameters, the patients were instructed to use 2-3 drops of Irimedadi taila and gently massage the gums twice daily in Group B and oral hygiene instructions were given to all patients. Plaque and gingivitis assessment were carried out using the plaque index (Silness and Loe, 1964), Gingival index (Loe and Silness, 1963), and modified sulcular bleeding index (Mombelli et al.) at baseline and at 21 days post treatment. Statistically analysis was carried out using the student's paired t test for intra group comparison and unpaired t test for inter group comparison. Results showed that Irimedadi taila is effective in reducing gingival index and gingival bleeding index scores in comparison to scaling alone and the values are statistically significant with p < 0.0001. Irimedadi taila is effective in treatment of plaque induced gingivitis and can be effectively used as an adjunct to mechanical therapy. PMID- 29031950 TI - Identification of potential transcriptomic markers in developing asthma: An integrative analysis of gene expression profiles. AB - The goal of this study was to identify potential transcriptomic markers in developing asthma by an integrative analysis of multiple public microarray data sets. Using the R software and bioconductor packages, we performed a statistical analysis to identify differentially expressed (DE) genes in asthma, and further performed functional interpretation (enrichment analysis and co-expression network construction) and classification quality evaluation of the DE genes identified. 3 microarray datasets (192 cases and 91 controls in total) were collected for this analysis. 62 DE genes were identified in asthma, among which 43 genes were up-regulated and 19 genes were down-regulated. The up-regulated gene with the highest Log2 Fold Change (LFC) was CLCA1 (LFC=2.81). The down regulated gene with the highest absolute LFC was BPIFA1 (LFC=-1.45). Enrichment analysis revealed that those DE genes strongly associated with proteolysis, retina homeostasis, humoral immune response, and salivary secretion. A support vector machine classifier (asthma versus healthy control) was also trained based on DE genes. In conclusion, the consistently DE genes identified in this study are suggested as candidate transcriptomic markers for asthma diagnosis, and provide novel insights into the pathogenesis of asthma. PMID- 29031951 TI - Potential of Cationic-Polymeric Nanoparticles for Oral Delivery of Naringenin: In Vitro and In Vivo Investigations. AB - The objective of the study was to improve the bioavailability and anticancer potential of naringenin (NRG) by developing a drug-loaded polymeric nanodelivery system. NRG-loaded eudragit E100 nanoparticle (NRG-EE100-NPs) system was developed and physicochemically characterized. In vivo pharmacokinetic and in vitro cytotoxicity abilities of the NRG-EE100-NPs were investigated. In vivo anticancer activity was evaluated in murine BALB/c mice-bearing colorectal tumor. The NRG-EE100-NPs had an optimum mean particle size (430.42 +/- 5.78 nm), polydispersity index (0.283 +/- 0.089) with percent entrapment efficiency (68.83 +/- 3.45%). The NRG-EE100-NPs demonstrated significant higher bioavailability (~96-fold; p <0.05) as well as cytotoxicity (~16-fold; p <0.001) as compared to free NRG. Furthermore, NRG-EE100-NPs indicated significant tumor suppression (p <0.01) subsequently improvement in survival rate compared to free NRG in vivo. Thus, the physicochemical properties and colorectal cancer efficacy of NRG were improved by successful encapsulating in cationic-polymeric nanoparticle system. PMID- 29031953 TI - Stable and Fast-Dissolving Amorphous Drug Composites Preparation via Impregnation of Neusilin(r) UFL2. AB - A promising approach to increase the aqueous solubility, hence the bioavailability, of poorly water-soluble drugs is to convert them into their amorphous state through impregnation into mesoporous silica. Unfortunately, mesoporous silica is not yet available in bulk quantities due to high manufacturing costs. In this work, feasibility of using a commercially available cost-effective mesoporous fine grade Neusilin(r) UFL2 to prepare amorphous drug composites of 2 model poorly soluble drugs, fenofibrate and itraconazole, is established. In contrast to fluidized-bed spray-impregnation, only mixing and drying steps are required. Complimentary assessment using X-ray powder diffraction, differential scanning calorimetry, and Raman spectroscopy confirmed drug within the composites to be amorphous at as high as 30% drug loading both after formation and after 3 months of storage at 40 degrees C and 75% relative humidity. Amorphous drug recrystallization was completely suppressed due to the confinement effect due to the Neusilin(r). The amorphous drug composites resulted in higher apparent solubility and faster dissolution rate of the model drugs as compared to their crystalline counterpart, confirmed by United States Pharmacopeia II dissolution and ultraviolet surface dissolution imaging. Overall, stable, high drug-loaded fast-dissolving amorphous drug composites preparation using Neusilin(r) UFL2 is demonstrated as a promising approach to enhance solubility of poorly soluble drugs. PMID- 29031952 TI - Antitumor Efficacy and Toxicity of 5-Fluorouracil-Loaded Poly(Lactide Co glycolide) Pellets. AB - The aim of this study was to formulate a biodegradable implant capable of imparting local antitumor activity through the sustained release of the chemotherapeutic agent, 5-fluorouracil (5-FU). Thus, injectable pellets (<1.2 mm diameter) made from poly(lactide co-glycolide) (PLGA) and loaded with 5-FU at varying drug:polymer ratios were fabricated using hot-melt extrusion and tested for their ability to provide sustained release of 5-FU in in vitro and in vivo settings. In addition, these formulations were compared against soluble 5-FU for their antitumor activity in vivo as well as for their toxicity. It was demonstrated that the release rate of 5-FU from PLGA pellets was directly related to the percentage of 5-FU in the pellets. PLGA pellets loaded with 50% w/w 5-FU exhibited comparable, and significantly enhanced, antitumor activity (as measured by tumor volumes and survival) in vivo in a thymoma and colon cancer model, respectively, when compared to an equivalent bolus dose (120 mg/kg) of soluble 5 FU. We concluded that 5-FU-loaded PLGA pellets were more effective and specifically less erythrotoxic than 5-FU bolus injections and therefore may prove to be of benefit as an intraoperative adjunct therapy for patients with cancers that are sensitive to 5-FU and who are undergoing tumor resection. PMID- 29031954 TI - Suitability of the AUC Ratio as an Indicator of the Pharmacokinetic Advantage in HIPEC. AB - The purpose of this study was to evaluate the area under the concentration-time curve (AUC) ratio as an optimal indicator of the pharmacokinetic advantage during hyperthermic intraperitoneal perioperative chemotherapy. The impact on the AUC ratio on the variables related to the calculation of systemic drug exposure, instillation time, and peripheral drug distribution was evaluated through simulations as well as through a retrospective analysis of studies published in the literature. Both model simulations and the retrospective analysis showed that the 3 variables evaluated had an impact on the AUC ratio value if the complete systemic exposure was not fully considered. However, when that complete systemic exposure was considered, none of these variables affected the AUC ratio value. AUC ratio is not a characteristic parameter of a drug if the calculated systemic drug exposure is not complete. Thus, AUC ratio is not valid for comparing the pharmacokinetic advantage of 2 drugs, and it should not be employed to prove whether a drug can be used in hyperthermic intraperitoneal perioperative chemotherapy safely with regard to toxicity. As an alternative, the study of the absorption rate constant and the bioavailability are proposed as the true and independent parameters that reflect the amount of drug absorbed. PMID- 29031955 TI - Determination of Nonspherical Morphology of Doxorubicin-Loaded Liposomes by Atomic Force Microscopy. AB - The 3-D morphology of doxorubicin (DOX)-loaded liposomes with a size of circa 100 nm was characterized by atomic force microscopy in an aqueous environment. Prolate liposomes appear in accordance with linear expansion of DOX fiber bundles precipitated inside liposomes. Oblate and concave liposomes were simultaneously observed with increased DOX concentrations; however, their morphologies were not readily determined by 2-D cryo-TEM imaging. Precise data analysis of the 3-D parameters of each liposome allowed semiquantitative evaluation of the transformation of spherical liposomes into nonspherical-prolate, oblate, and concave liposomes. In addition, nonspherical liposomes became spherical on the replacement of the liposomal outer phase consisting of a sucrose solution, with water and subsequent water influx. All spherical liposomes transformed into oblate and concave liposomes with a return to hyperosmotic conditions, when transferred from water to sucrose solution. Furthermore, the concave liposomes did not appear under DOX incubation conditions (65 degrees C), which could be due to the amorphous and supersaturated DOX inside the liposomes that restrained liposomal shrinkage. As atomic force microscopy has improved our ability to image 3-D morphologies of liposomes in various conditions, it is an alternative analytical tool to cryo-TEM and may have future applications in regulatory tests for quality control and assurance. PMID- 29031956 TI - The Solubility-Permeability Trade-Off of Progesterone With Cyclodextrins Under Physiological Conditions: Experimental Observations and Computer Simulations. AB - This study intended to evaluate the effect of cyclodextrins on the apparent solubility and permeability of lipophilic drugs under physiological conditions and establish in silico model to choose the optimal amount of cyclodextrins for cyclodextrin-containing oral formulations. In order to study the effect of cyclodextrins under physiological conditions, bile salts and lecithin were added into the rat intestinal perfusion solution to simulate the fasted intestinal fluid. In addition, the in vivo oral absorption performances of cyclodextrin containing formulations were simulated by gastrointestinal simulation technology based on the advanced compartmental absorption and transit model. The permeability of progesterone was not significantly different between 0.1 mM and 1 mM of 2-hydroxypropyl-beta-cyclodextrins (HP-beta-CD) under physiological conditions. When the concentration of HP-beta-CD was 1 mM, the permeability of progesterone under physiological conditions was significantly higher than that in vitro. The in silico model established in this study was validated by in vivo studies of 4 formulations containing different dosage of cyclodextrin, proving that it was accurate and reliable. In conclusion, this work that demonstrates the permeability of lipophilic drugs could not decrease quickly among a certain range of dosage of HP-beta-CD in vivo. Studying the solubility-permeability interplay under physiological conditions would be more meaningful. PMID- 29031957 TI - Exercise training attenuates experimental autoimmune encephalomyelitis by peripheral immunomodulation rather than direct neuroprotection. AB - BACKGROUND: Conflicting results exist on the effects of exercise training (ET) on Experimental Autoimmune Encephalomyelitis (EAE), nor is it known how exercise impacts on disease progression. OBJECTIVE: We examined whether ET ameliorates the development of EAE by modulating the systemic immune system or exerting direct neuroprotective effects on the CNS. METHODS: Healthy mice were subjected to 6weeks of motorized treadmill running. The Proteolipid protein (PLP)-induced transfer EAE model in mice was utilized. To assess effects of ET on systemic autoimmunity, lymph-node (LN)-T cells from trained- vs. sedentary donor mice were transferred to naive recipients. To assess direct neuroprotective effects of ET, PLP-reactive LN-T cells were transferred into recipient mice that were trained prior to EAE transfer or to sedentary mice. EAE severity was assessed in vivo and the characteristics of encephalitogenic LN-T cells derived from PLP-immunized mice were evaluated in vitro. RESULTS: LN-T cells obtained from trained mice induced an attenuated clinical and pathological EAE in recipient mice vs. cells derived from sedentary animals. Training inhibited the activation, proliferation and cytokine gene expression of PLP-reactive T cells in response to CNS-derived autoantigen, but strongly enhanced their proliferation in response to Concanavalin A, a non-specific stimulus. However, there was no difference in EAE severity when autoreactive encephalitogenic T cells were transferred to trained vs. sedentary recipient mice. CONCLUSION: ET inhibits immune system responses to an auto-antigen to attenuate EAE, rather than generally suppressing the immune system, but does not induce a direct neuro-protective effect against EAE. PMID- 29031959 TI - Well-dispersed palladium nanoparticles on nickel- phosphorus nanosheets as efficient three-dimensional platform for superior catalytic glucose electro oxidation and non-enzymatic sensing. AB - In this work, we report a novel well-dispersed palladium nanoparticles (PdNPs)/nickel-phosphorus nanosheets (Ni-P NSs) synthesized by combination of red phosphorous phosphorization and simple electrodeposition technique. The obtained PdNPs/Ni-P nanosheets framework with large electrochemical active surface would not only exhibit much superior electrocatalytic activity (180.5+/-3.07mAcm-2) toward glucose oxidation reaction, but also represent a wide linear range (2MUM 4.65mM) and high sensitive detection of glucose (242.5+/-3.28MUAmM-1cm-2) as non enzymatic glucose sensor. The three- dimensional (3D) PdNPs/Ni-P nanosheets have a promising prospect as a novel kind of highly active nanocatalyst and non enzymatic electrochemical sensor. PMID- 29031958 TI - Reference values and reliability for lumbopelvic strength and endurance in asymptomatic subjects. AB - BACKGROUND: Assessing the lumbopelvic region is useful for detecting many musculoskeletal dysfunctions and also performance deficits. Several clinical tests are used to assess this region, however, reference values and results related to method, reliability and error measurements of these tests have not been reported. OBJECTIVES: To establish reference values and determine reliability, standard error of measurement (SEM), typical error of measurement (TEM) and minimum detectable change (MDC) of a set of clinical tests used for assessing the lumbopelvic region in subjects divided by gender, age group and physical activity levels. METHODS: An observational study was conducted. For reference values, 152 subjects performed eight clinical tests (isometric strength of hip muscles; deep abdominal function and endurance tests) used to assess the lumbopelvic region. Reliability analyses were assessed using the Intraclass Correlation Coefficient (ICC2,1) and error measurements were calculated by using the SEM, TEM and the MDC. RESULTS: Reference values were established for each group and results showed significant (p<0.05) differences concerning gender, age group and physical activity levels in clinical tests. All tests presented good reliability indices with an ICC higher than 0.80 for reliability; MDC values were greater than mean of SEM in all tests, confirming its usage for clinical practice assessments. CONCLUSION: Reference values are necessary in the evaluation of subjects and these results can contribute for clinical practice, providing clinical training targets. Also, evaluation of reliability and error measurements in this set of tests allows its use in clinical practice. PMID- 29031960 TI - The effect of post-synthesis aging on the ligand exchange activity of iron oxide nanoparticles. AB - HYPOTHESIS: Ligand exchange is a widely-used method of controlling the surface chemistry of nanomaterials. Exchange is dependent on many factors including the age of the core particle being modified. Aging of the particles can impact surface structure and composition, which in turn can affect ligand binding. EXPERIMENTS: To quantify the effects of aging on ligand exchange, we employed a technique to track the exchange of radiolabeled 14C-oleic acid with unlabeled, oleic acid bound to iron oxide nanoparticles. Liquid scintillation counting (LSC) was used to determine the amount of 14C-oleic acid adsorbing to the particles throughout the duration of the exchange for particles aged for 2days, 7days, and 30days. FINDINGS: Results revealed an increase in the total amount of ligands exchanged with aging up to 30days. Kinetic analysis of these results revealed a significant decrease in the overall rate of ligand exchange between 2 and 30days. The change in extent of adsorption with age could suggest increased availability of free binding sites. A follow-up study comparing exchange with oxidized and unoxidized particles suggested this increase in ligand adsorption may be due to changes in the Fe2+/Fe3+ ratio on the surface as the particles aged. PMID- 29031961 TI - Fabrication of cobalt ferrite/cobalt sulfide hybrid nanotubes with enhanced peroxidase-like activity for colorimetric detection of dopamine. AB - The development of highly sensitive and low-cost biosensors for the detection of dopamine is of paramount importance for medical diagnostics. Herein, we report the preparation of a new peroxidase-like catalyst with a uniform heterostructure by using a technique involving electrospinning, annealing and solvothermal reaction. In this catalyst system, cobalt sulfide (CoS) nanoparticles were homogenously distributed and supported on the surface of cobalt ferrite (CoFe2O4) nanotubes. The as-prepared CoFe2O4/CoS hybrid nanotubes showed remarkably high catalytic efficiency as peroxidase mimics toward the oxidation of 3,3,5,5 tetramethylbenzidine (TMB) in the presence of H2O2. Owing to the synergistic effect between the CoFe2O4 and CoS component, the prepared CoFe2O4/CoS hybrid nanotubes exhibited enhanced peroxidase-like activity, exceeding that of either the CoS nanoparticles or CoFe2O4 nanotubes alone. Dopamine has been widely investigated due to its unique function in the nervous system. Consequently, various approaches have been developed for the sensitive determination of dopamine. In this work, a simple and sensitive colorimetric route for the detection of dopamine was established based on the ability of dopamine to induce the reduction of oxidized TMB to TMB with consequent fading of the blue color. This method shows a wide linear range (0-50MUM) and a low detection limit of 0.58MUM. The unique heterostructure with spinel/sulfide interfaces represents a new concept for the construction of highly efficient and multifunctional biocatalysts. PMID- 29031962 TI - [Asthma control and quality of life]. AB - INTRODUCTION: The assessment of asthma control is based on objective measures: clinical, pharmacological and spirometry. However subjective component may be also necessary for assessing asthma control. OBJECTIVES: To study the feasibility and clinical value of the assessment of the quality of life of patients with asthma by the SF-36 (Medical Outcomes Study Short Form) and the possible existence of a correlation between controlled asthma and a better quality of life. PATIENTS AND METHODS: A prospective study that included 167 patients with asthma in a stable condition. Control of asthma and SF-36 were established three months after the inclusion of patients. RESULTS: The SF-36 was lower in the uncontrolled group in all areas of the physical component and the difference was significant in the "limitation related to physical activity" and "perceived health". In the mental component, the score was lower in "mental health" and the "limitation due to mental state" in the group with uncontrolled asthma and the difference was significant only in the limitation due to mental state (P=0.043). CONCLUSION: The quality of life of asthmatic patients is correlated to the control of this disease. PMID- 29031963 TI - [Spirometric and radiographic profile of patients with pulmonary tuberculosis treated and cured at the Department of Pulmonology of Brazzaville University Hospital]. AB - INTRODUCTION: Tuberculosis is a real public health problem in Congo. Pulmonary localization can lead to sequelae of respiratory functional repercussions. OBJECTIVE: Describe the spirometric and radiographic profile of patients treated with pulmonary tuberculosis treated and cured. PATIENTS AND METHODS: This was a cross-sectional study that included 150 patients with previous pulmonary tuberculosis with positive microscopy treated and cured in the Pulmonary Department of Brazzaville University Hospital. In which we performed a functional exploration (Spirometry) and a chest X-ray. The study took place from 1st January 2016 to 31st August 2016. RESULTS: The spirometry performed in all patients was pathological in 68.67% (103 cases/150) of the cases. Among them 74.76% (77 cases/103) had a restrictive profile (FEV1/FVC >70% and CVF <80%), 9.71% (10 cases/103) an obstructive syndrome (FEV1/FVC <=70% and CVF >80%) and 15.53% (16 cases/103) a mixed syndrome (FVC <80% and FEV1/FVC <70%). Of the 150 chest radiographs performed, 120 or 80% were pathological; the degree of parenchymal stage III destruction represented 28.33%. There was a significant correlation between the degree of parenchymal destruction and the delay in treatment on the one hand and between the degree of parenchymal destruction and the different pulmonary volumes and volumes on the other hand. CONCLUSION: The prevention of these respiratory functional disorders is based on the prophylaxis of tuberculosis on early diagnosis of the disease. PMID- 29031964 TI - [The thoracic surgeon and the management of the bronchial biliary fistula of hydatid origin]. AB - INTRODUCTION: The bronchial biliary fistula surgery is a major one, always going with a higher rate of complication especially in case of bile duct obstruction. The aim of this study is to find out the contribution of endoscopic sphincterotomy while reporting the results of surgical treatment of bronchial biliary fistulae by exclusive thoracotomy. METHODS: This was a retrospective study, which took place in the Department of Thoracic Surgery, University Hospital Hassan II, from January 2009 to March 2016. The parameters studied in connection with the bronchial biliary fistula of hydatid origin were: age, sex, origin, history of surgery especially for hepatic hydatid cyst, term of bilyptysie, imaging results, preoperative cholangiography indications, surgical treatment modalities and patients trends. RESULTS: A sample of 12 patients was included (6 men and 6 women) with an average age of 44 years old, with a gap spanning between 17 and 81 years. Seven patients had at least a history of hepatic hydatid surgery. The biliptysie was the main symptom in 8 patients. A biological cholestasis syndrome was found in 6 patients. The thoracoabdominal CT scan performed on all patients comes out with results in 100% of cases. Four patients received endoscopic retrograde cholangiography that allowed them to release the bile duct completely by sphincterotomy with extraction of hydatid membrane in one patient and with development of a biliary stent in another patient. The incision was a low posterolateral thoracotomy in 10 patients that went under surgery. It has allowed to deal in one-time liver and lung injuries combined with diaphragmatic breach repair. Inside the group of patients that went under surgery, the postoperative results were simple in 8 cases. We have noted an overall mortality rate of 18.2%. CONCLUSION: Bronchial biliary fistula surgery complications remains considerable despite the progress of diagnostic imaging. Preoperative endoscopic sphincterotomy is a milestone in the handling of this surgery. It may even be suggested as exclusive therapy in inoperable patients with significant biliptisy. PMID- 29031965 TI - [Bronchial carcinoid tumor and recurrent pneumothoraxes]. AB - Pneumothorax is a rare clinical manifestation of lung cancer. It can exceptionally reveal a bronchial carcinoid tumor. We present the case of a 27 year-old woman in whom recurrent pneumothoraxes were the clinical manifestation of a bronchial carcinoid tumor. The interest for chest computed tomography and bronchoscopy to identify etiology of secondary pneumothoraxes will be discussed. PMID- 29031966 TI - BINK: Biological binary keypoint descriptor. AB - Learning robust keypoint descriptors has become an active research area in the past decade. Matching local features is not only important for computational applications, but may also play an important role in early biological vision for disparity and motion processing. Although there were already some floating-point descriptors like SIFT and SURF that can yield high matching rates, the need for better and faster descriptors for real-time applications and embedded devices with low computational power led to the development of binary descriptors, which are usually much faster to compute and to match. Most of these descriptors are based on purely computational methods. The few descriptors that take some inspiration from biological systems are still lagging behind in terms of performance. In this paper, we propose a new biologically inspired binary keypoint descriptor: BINK. Built on responses of cortical V1 cells, it significantly outperforms the other biologically inspired descriptors. The new descriptor can be easily integrated with a V1-based keypoint detector that we previously developed for real-time applications. PMID- 29031967 TI - Profiling of a wide range of neurochemicals in human urine by very-high performance liquid chromatography-tandem mass spectrometry combined with in situ selective derivatization. AB - Development of a reliable analytical method of neurochemicals in biological fluids is important to discover potential biomarkers for the diagnosis, treatment and prognosis of neurological disorders. However, neurochemical profiling of biological samples is challenging because of highly different polarities between basic and acidic neurochemicals, low physiological levels, and high matrix interference in biological samples. In this study, an ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method combined with in situ selective derivatization for comprehensive profiling of 20 neurochemicals in urine was developed for a wide range of neurochemicals. In situ selective derivatization greatly improved the peak capacity on a reversed-phase C18 column and sensitive mass detection in LC-ESI-MS/MS-positive ion mode due to reduction of the distinct physicochemical properties between acidic and basic neurochemicals. The MS/MS spectra of neurochemicals exhibited specific ions, such as losses of amine, methanol, or methyl formate molecules from protonated molecules, enabling selection of appropriate multiple reaction monitoring (MRM) ions for selective and sensitive detection. The developed method was validated in terms of linearity, limit of detection (LOD) and limit of quantification (LOQ), precision, accuracy, and recovery. The correlation coefficients (R2) of calibration curves were above 0.9961. The ranges of LODs and LOQs were 0.1 3.6ng/mL and 0.3-12.0ng/mL, respectively. The overall precision and accuracy were 0.52-16.74% and 82.26-118.17%, respectively. The method was successfully applied to simultaneously profile the metabolic pathways of tyrosine, tryptophan, and glutamate in Parkinson's disease patient urine (PD, n=21) and control urine (n=10). Significant differences (P<=0.01) between two groups in the activity of phenylethanolamine N-methyltransferase (PNMT) and alcohol dehydrogenase (ADH) were observed. In conclusion, this method provides reliable quantification of a wide range of neurochemicals in human urine and would be helpful for finding biomarkers related to specific neuronal diseases. PMID- 29031968 TI - Pyrolysis-gas chromatography-isotope ratio mass spectrometry for monitoring natural additives in polylactic acid active food packages. AB - Compound-specific isotope analysis (CSIA) usually requires preparative steps (pretreatments, extraction, derivatization) to get amenable chromatographic analytes from bulk geological, biological or synthetic materials. Analytical pyrolysis (Py-GC/MS) can help to overcome such sample manipulation. This communication describe the results obtained by hyphenating analytical pyrolysis (Py-GC) with carbon isotope-ratio mass spectrometry (IRMS) for the analysis of a polylactic acid (PLA) a based bio-plastic extruded with variable quantities of a natural plant extract or oregano essential oil. The chemical structural information of pyrolysates was first determined by conventional analytical pyrolysis and the measure of delta13C in specific compounds was done by coupling a pyrolysis unit to a gas chromatograph connected to a continuous flow IRMS unit (Py-GC-C-IRMS). Using this Py-CSIA device it was possible to trace natural additives with depleted delta13C values produced by C3 photosystem vegetation (cymene: -26.70/00+/-2.52; terpinene: -27.10/00+/-0.13 and carvacrol: -27.50/00+/ 1.80 from oregano and two unknown structures: -23.30/00+/-3.32 and -24.40/00+/ 1.70 and butyl valerate: -24.10/00+/-3.55 from Allium spp.), within the naturally isotopically enriched bio-plastic backbone derived from corn (C4 vegetation) starch (cyclopentanones: -14.20/00+/-2.11; lactide enantiomers: -9.20/00+/-1.56 and larger polymeric units: -17.20/00+/-1.71). This is the first application of Py-CSIA to characterize a bio-plastic and is shown as a promising tool to study such materials, providing not only a fingerprinting, but also valuable information about the origin of the materials, allowing the traceability of additives and minimizing sample preparation. PMID- 29031969 TI - Influence of natural organic matter on the extraction efficiency of flame retardants from surface waters. AB - The influence of natural organic matter (NOM) on the solid-phase extraction (SPE) efficiency was investigated for legacy and emerging flame retardants (FRs; n=26) in surface water. Three different groups of FRs were analyzed: polybrominated diphenyl ethers (PBDEs), halogenated flame retardants (HFRs), and organophosphorus flame retardants (OPFRs). In addition, five sorbents (Amberlite XAD-2, Amberlite IRA-743, Oasis HLB, Chromabond HR-P, and Chromabond HR-X) were evaluated for the extraction of FRs (n=33) in water, of which Oasis HLB eluted with dichloromethane and acetone:n-hexane (1:1, v/v) provided the highest overall recoveries. In subsequent NOM experiments, where FRs were extracted from water containing different NOM concentrations, both increased and decreased extraction efficiency with increasing NOM level were observed. Physicochemical and semi empirical quantum chemistry properties were calculated for the FRs and used for analyzing relations between FRs. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) showed that the FRs separated into four different groups based on their properties. The FRs within each group responded similarly to increasing NOM, while differences in behavior were observed between the groups. This suggests that the structural properties of micropollutants highly influence NOM-FR interaction mechanisms. For instance, at high NOM levels, recoveries decreased substantially for FRs containing a moiety that can form strong hydrogen bonds (such as the double-bonded oxygen in e.g., OPFRs). Many of the compounds showed maximum extraction efficiency at higher levels of NOM. This suggests that binding of NOM to the sorbent and subsequent interaction between sorbent-bound NOM and FRs is an important mechanism for extraction of micropollutants from surface waters. PMID- 29031970 TI - Adsorption equilibrium and kinetics of Immunoglobulin G on a mixed-mode adsorbent in batch and packed bed configuration. AB - It is commonly accepted that efficient protein separation and purification to the desired level of purity is one bottleneck in pharmaceutical industries. MabDirect MM is a new type of mixed mode adsorbent, especially designed to operate in expanded bed adsorption (EBA) mode. In this study, equilibrium and kinetics experiments were carried out for the adsorption of Human Immunoglobulin G (hIgG) protein on this new adsorbent. The effects of ionic strength and pH are assessed. Langmuir isotherms parameters are obtained along with the estimation of the effective pore diffusion coefficient (Dpe) by fitting the batch adsorption kinetics experiments with the pore diffusion model. The maximum adsorption of the IgG protein on the MabDirect MM adsorbent, 149.7+/-7.1mg.gdry-1, was observed from a pH 5.0 buffer solution without salt addition. Adding salt to the buffer solution, and/or increasing pH, decreases the adsorption capacity which is 4.7+/ 0.4mg.gdry-1 for pH 7.0 with 0.4M NaCl in solution. Regarding the Dpe estimation, a value of 15.4*10-6cm2.min-1 was obtained for a pH 5.0 solution without salt. Increasing the salt concentration and/or the pH value will decrease the effective pore diffusion, the lowest Dpe (0.16*10-6cm2.min-1) value being observed for an IgG solution at pH 7.0 with 0.4M NaCl. Fixed bed experiments were conducted with the purpose to validate the equilibrium and kinetic parameters obtained in batch. For a feed concentration of 0.5 g.L-1 of IgG in pH 5.0 buffer solution with 0.4M NaCl, a dynamic binding capacity at 10% of breakthrough of 5.3mg.gwet-1 (15.4mgIgG.mLresin-1) was obtained, representing 62% of the saturation capacity. As far as the authors know, this study is the first one concerning the adsorption of hIgG on this type of mixed mode chromatography adsorbent. PMID- 29031971 TI - Solid-phase extraction followed by liquid chromatography-high resolution mass spectrometry to determine synthetic cathinones in different types of environmental water samples. AB - Synthetic cathinones have become popular in recent years, which would explain why their determination in influent sewage samples has already been documented. In the present study a method based on solid-phase extraction followed by liquid chromatography and high resolution mass spectrometry is developed, validated and applied to determine twelve cathinones and one of their metabolites in different environmental samples including influent and effluent sewage and river water. Two cation-exchange sorbents (Oasis MCX and Oasis WCX) were compared, with better results achieved with Oasis WCX in terms of apparent recoveries (70-100%) and matrix effects (lower than -34%). The method was validated with effluent sewage samples providing suitable figures of merit, with method quantification limits ranging from 1ng/L to 5ng/L and method detection limits from 0.1ng/L to 0.5ng/L for all the compounds. Of the different cathinones studied, three, namely methylone, mephedrone metabolite and methylenedioxypyrovalerone, were quantified at concentration levels of low ng/L in each of the different samples analysed, while a number of the other cathinones were also detected in some of the samples. PMID- 29031972 TI - Selective two-dimensional effect-directed analysis with thin-layer chromatography. AB - There are thousands of organic trace substances in the environment that are not fully characterized, and evaluation of their relevance to the ecosystem is difficult. Effect-directed analysis (EDA) is a suitable tool to assess the effects of a substance via in-vitro bioassays, which can provide information about the relevance of the substance. High-performance thin-layer chromatography (HPTLC) has been shown to be a good method for fractionation. Environmental samples, however, often have high complexity, which is why the peak capacity of HPTLC is not sufficient. Therefore, this study focused on the development of selective two-dimensional (2D) HPTLC-EDA to increase the peak capacity and facilitate the identification of effective compounds. Thus, only effective zones were selected in the first dimension in terms of heart-cutting and were transferred to the second dimension through elution head-based extraction. Three 2D approaches were developed and validated. The best results in terms of peak capacity and orthogonality were achieved when the retardation factors of the first dimension were used to adjust the mobile phase (MP) for the second dimension. Applying the acetylcholinesterase (AChE) inhibition assay as an example EDA, analysis of spiked surface water by 2D HPTLC-EDA allowed zones with neurotoxic effects to responsible substances to be assigned. The 2D separation reduced the complexity of effective zones and thus facilitated the subsequent identification of effective compounds. Knowledge about a substances effects enabled assessment of its relevance to the environment. PMID- 29031973 TI - Predicting Solubility/Miscibility in Amorphous Dispersions: It Is Time to Move Beyond Regular Solution Theories. AB - The evolving challenges associated with the development of poorly soluble drug molecules have been met with major advances in drug solubilization. In particular, amorphous solid dispersion technology is becoming an increasingly important option to enhance oral bioavailability by creating prolonged drug supersaturation to maximize the driving force for intestinal absorption. A primary concern in the development of amorphous solid dispersions is their physical stability, leading to increasing interest in predictive methodologies to assess the propensity for drug crystallization under various storage conditions. For most drug-excipient combinations of pharmaceutical interest, hydrogen bonding is an important factor in determining miscibility, supersaturation potential, and the influence of water uptake during storage and after administration. The vast majority of publications to date have utilized mathematical models based on regular solution theory such as Flory-Huggins theory to predict drug-polymer miscibility, despite the fact that they were never intended to be applied to hydrogen-bonded systems. In this commentary article, regular solution theory is applied to simple hydrogen-bonded alcohol-alkane solutions to explore trends in the Flory-Huggins chi interaction parameter and possible pitfalls in its interpretation. More recent models that explicitly allow for specific interactions merit greater attention. PMID- 29031974 TI - In Situ Monitoring and Modeling of the Solution-Mediated Polymorphic Transformation of Rifampicin: From Form II to Form I. AB - In this article, the solution-mediated polymorphic transformation of rifampicin was investigated and simulated in 3 solvents at 30 degrees C. The solid-state form I and form II of rifampicin was characterized by powder X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, Raman spectroscopy, and Fourier transform infrared spectroscopy (FTIR). To explore the relative stability, solubility data of form I and form II of rifampicin in butan-1-ol were determined using a dynamical method. In addition, Raman spectroscopy and focused beam reflectance measurement were used to in situ monitor the transformation of rifampicin from form II to form I. The liquid state concentration of rifampicin was measured by UV spectroscopic method. To investigate the effect of solvent on transformation, the transformation experiments were carried out in 3 solvents. Furthermore, a mathematical model was built to describe the kinetics of dissolution, nucleation, and growth processes during transformation by using experimental data. By combination of experimental and simulation results, it was found that the transformation process of rifampicin is controlled by dissolution of form II in heptane, whereas the transformation in hexane and octane was firstly controlled by dissolution of solid-state form and then controlled by growth of form I. PMID- 29031975 TI - New Polymorph Form of Dexamethasone Acetate. AB - A new monohydrated polymorph of dexamethasone acetate was crystallized and its crystal structure characterized. The different analytical techniques used for describing its structural and vibrational properties were: single crystal and polycrystal X-ray diffraction, solid state nuclear magnetic resonance, infrared spectroscopy. A Hirshfeld surface analysis was carried out through self arrangement cemented by H-bonds observed in this new polymorph. This new polymorph form appeared because of self-arrangement via classical hydrogen bonds around the water molecule. PMID- 29031976 TI - Understanding Protein-Interface Interactions of a Fusion Protein at Silicone Oil Water Interface Probed by Sum Frequency Generation Vibrational Spectroscopy. AB - Protein adsorbed at the silicone oil-water interface can undergo a conformational change that has the potential to induce protein aggregation on storage. Characterization of the protein structures at interface is therefore critical for understanding the protein-interface interactions. In this article, we have applied sum frequency generation (SFG) spectroscopy for studying the secondary structures of a fusion protein at interface and the surfactant effect on protein adsorption to silicone oil-water interface. SFG and chiral SFG spectra from adsorbed protein in the amide I region were analyzed. The presence of beta-sheet vibrational band at 1635 cm-1 implies the protein secondary structure was likely perturbed when protein adsorbed at silicone oil interface. The time-dependent SFG study showed a significant reduction in the SFG signal of preadsorbed protein when polysorbate 20 was introduced, suggesting surfactant has stronger interaction with the interface leading to desorption of protein from the interface. In the preadsorbed surfactant and a mixture of protein/polysorbate 20, SFG analysis confirmed that surfactant can dramatically prevent the protein adsorption to silicone oil surface. This study has demonstrated the potential of SFG for providing the detailed molecular level understanding of protein conformation at interface and assessing the influence of surfactant on protein adsorption behavior. PMID- 29031977 TI - Modeling and Prediction of Drug Dispersability in Polyvinylpyrrolidone-Vinyl Acetate Copolymer Using a Molecular Descriptor. AB - The expansion of a novel in silico model for the prediction of the dispersability of 18 model compounds with polyvinylpyrrolidone-vinyl acetate copolymer is described. The molecular descriptor R3m (atomic mass weighted 3rd-order autocorrelation index) is shown to be predictive of the formation of amorphous solid dispersions at 2 drug loadings (15% and 75% w/w) using 2 preparation methods (melt quenching and solvent evaporation using a rotary evaporator). Cosolidified samples were characterized using a suite of analytical techniques, which included differential scanning calorimetry, powder X-ray diffraction, pair distribution function analysis, polarized light microscopy, and hot stage microscopy. Logistic regression was applied, where appropriate, to model the success and failure of compound dispersability in polyvinylpyrrolidone-vinyl acetate copolymer. R3m had combined prediction accuracy greater than 90% for tested samples. The usefulness of this descriptor appears to be associated with the presence of heavy atoms in the molecular structure of the active pharmaceutical ingredient, and their location with respect to the geometric center of the molecule. Given the higher electronegativity and atomic volume of these types of atoms, it is hypothesized that they may impact the molecular mobility of the active pharmaceutical ingredient, or increase the likelihood of forming nonbonding interactions with the carrier polymer. PMID- 29031978 TI - Monitoring the Phase Behavior of Supersaturated Solutions of Poorly Water-Soluble Drugs Using Fluorescence Techniques. AB - Phase transformations of poorly water-soluble drugs, in low concentration, supersaturated aqueous solutions are of considerable interest. Herein, fluorescence lifetime and steady-state fluorescence spectroscopy were employed to investigate the fluorescence properties of the autofluorescent compound, felodipine (a 1,4-dihydropyridine calcium channel blocker), when present as free drug in solution, drug-rich aggregates, and crystals. Measurements were also performed in the absence and presence of liver microsomes. To study nonfluorescent drugs, an environment-sensitive fluoroprobe, 6-propionyl-2 dimethylaminonaphthalene, was employed. The lifetime of free felodipine in solution in simple media was found to be ~0.4 ns, whereas felodipine present in drug-rich aggregates and crystals was characterized by a longer lifetime of ~2 and ~9 ns, respectively. In the presence of structures containing lipids, the local environment of felodipine was found to change based on fluorescence characteristics and the concentration where felodipine aggregates formed was greatly increased. The lifetime of 6-propionyl-2-dimethylaminonaphthalene in solutions containing clotrimazole (an imidazole derivative with antimycotic activity) or efavirenz (a non-nucleoside reverse transcriptase inhibitor with antiviral activity) increased on aggregate formation as a result of the change in polarity of the probe local environment. Fluorescence lifetime coupled with steady-state fluorescence spectroscopy was demonstrated to be effective in identifying the concentration where drug aggregates formed, contributing to improved understanding of the phase behavior of poorly water-soluble drugs in biologically relevant media. PMID- 29031979 TI - Doxorubicin-loaded micelles of amphiphilic diblock copolymer with pendant dendron improve antitumor efficacy: In vitro and in vivo studies. AB - Previously reported amphiphilic diblock copolymer with pendant dendron moieties (P71D3) has been further evaluated in tumor-bearing mice as a potential drug carrier. This P71D3-based micelle of an average diameter of 100nm was found to be biocompatible, non-toxic and physically stable in colloidal system up to 15days. It enhanced the in vitro potency of doxorubicin (DOX) in 4T1 breast tumor cells by increasing its uptake, by 3-fold, compared to free DOX. In 4T1 tumor-bearing mice, the tumor growth rate of P71D3/DOX (2mg/kg DOX equivalent) treated group was significantly delayed and their tumor volume was significantly reduced by 1.5 fold compared to those treated with free DOX. The biodistribution studies indicated that P71D3/DOX enhanced accumulation of DOX in tumor by 5- and 2-fold higher than free DOX treated mice at 15min and 1h post-administration, respectively. These results suggest that P71D3 micelle is a promising nanocarrier for chemotherapeutic agents. PMID- 29031980 TI - Quality by Design (QbD) approach to optimize the formulation of a bilayer combination tablet (Telmiduo(r)) manufactured via high shear wet granulation. AB - A bilayer tablet, which consisted of telmisartan and amlodipine besylate, was formulated based on a Quality by Design (QbD) approach. The control and response factors were determined based on primary knowledge and the target values of the control tablet (Twynsta(r)). A D-optimal mixture design was used to obtain the optimal formulations in terms of D-mannitol, crospovidone, and MCC for the telmisartan layer, and CCM-Na, PVP K25, and Prosolv for the amlodipine layer. The quantitative effects of the different formulation factors on the response factors were accurately predicted using the equations of best fit and a strong linearity was observed between the predicted and actual values of the response factors. The optimized bilayer tablet was obtained using a numeric optimization technique and was characterized compared with a control (Twynsta(r)) by using various physical evaluations and in vivo pharmacokinetic parameters. The physical stability of Telmiduo(r) was greater than that of Twynsta(r) owing to the improvement of formulation factors. The in vivo pharmacokinetic parameters suggested that Telmiduo(r) might have pharmaceutical equivalence and bioequivalence with Twynsta(r). Therefore, the bilayer tablet that consisted of telmisartan and amlodipine besylate could be produced using a more economical and simpler method than that used to produce Twynsta(r). Moreover, the suitability of QbD for effective product development in the pharmaceutical industry was shown. PMID- 29031981 TI - Fabrication and characterization of gefitinib-releasing polyurethane foam as a coating for drug-eluting stent in the treatment of bronchotracheal cancer. AB - The purpose of the present study was to develop gefitinib-loaded polymeric foams that can be used as coating of drug-eluting stents for palliative treatment of bronchotracheal cancer. Release of such an anticancer drug from such stent coating can retard tumor regrowth into the bronchial lumen. Gefitinib-loaded polyurethane (PU) foams were prepared by embedding either gefitinib micronized crystals or gefitinib-loaded poly(lactic-co-glycolic acid) microspheres in water blown films, with up to 10% w/w loading for gefitinib microcrystals and 15% w/w for gefitinib microspheres (corresponding to 1.0% w/w drug loading). Drug-release studies showed sustained release of gefitinib over a period of nine months, with higher absolute release rates at higher drug loading content. By the end of the studied nine month release periods, 60-100% of the loaded gefitinib had been released. Foams loaded with gefitinib-PLGA microspheres at 15% w/w showed accelerated drug release after 4 months, coinciding with the degradation of PLGA microparticles in the PU foam as demonstrated by scanning electron microscopy (SEM). When applied on a nitinol braided bronchotrachial stent, PU coatings with gefitinib microspheres showed similar mechanical properties as the drug-free PU coating, which indicated that the loading of microspheres did not affect the mechnical properties of the PU foams. In conclusion, we have fabricated drug loaded PU foams that are suitable for bronchotracheal stent coating. PMID- 29031982 TI - Functionalized hBN as targeted photothermal chemotherapy for complete eradication of cancer cells. AB - The development of combined anticancer therapeutic techniques has drawn increased attention for enhanced therapeutic efficacy. In this work, we synthesized Near Infrared (NIR) responsive ICG (I) functionalized hexagonal boron-nitride (hBN) as photothermal therapeutic agent (hBNI) and Doxorubicin (Dox)-conjugated Hyaluronic acid (HA) as tumor targeted chemotherapeutic agent (d-HA-Dox). Using adhesion properties of Dopamine (d), the hBNI has been integrated with d-HA-Dox to make a tumor targeted photothermal chemotherapeutic agent (hBNI/d-HA-Dox). The nanostructure of hBNI/d-HA-Dox has been studied using 1H NMR, FTIR, UV-vis-NIR and AFM images. Our in vitro results have provided evidence that hBNI/d-HA-Dox can efficiently damage targeted cancer cells while healthy cells are less affected suggesting that the targeted hBNI/d-HA-Dox nanoparticles work as a complementary antitumor agent with its synergistic co-therapeutic power. PMID- 29031983 TI - Specific Ultrasound Data Acquisition for Tissue Motion and Strain Estimation: Initial Results. AB - Ultrasound applications such as elastography can benefit from 3-D data acquisition and processing. In this article, we describe a specific ultrasound probe, designed to acquire series of three adjacent imaging planes over time. This data acquisition makes it possible to consider the out-of-plane motion that can occur at the central plane during medium scanning, and is proposed with the aim of improving the results of strain imaging. In this first study, experiments were conducted on phantoms, and controlled axial and elevational displacements were applied to the probe using a motorized system. Radiofrequency ultrasound data were acquired at a 40-MHz sampling frequency with an Ultrasonix ultrasound scanner, and processed using a 3-D motion estimation method. For each of the 2-D regions of interest of the central plane in pre-compression data, a 3-D search was run to determine its corresponding version in post-compression data, with this search taking into account the region-of-interest deformation model chosen. The results obtained with the proposed ultrasound data acquisition and strain estimation were compared with results from a classic approach and illustrate the improvement produced by considering the medium's local displacements in elevation, with notably an increase in the mean correlation coefficients achieved. PMID- 29031984 TI - Analysis of Carotid Artery Transverse Sections in Long Ultrasound Video Sequences. AB - Examination of the common carotid artery (CCA) based on an ultrasound video sequence is an effective method for detecting cardiovascular diseases. Here, we propose a video processing method for the automated geometric analysis of CCA transverse sections. By explicitly compensating the parasitic phenomena of global movement and feature drift, our method enables a reliable and accurate estimation of the movement of the arterial wall based on ultrasound sequences of arbitrary length and in situations where state-of-the-art methods fail or are very inaccurate. The method uses a modified Viola-Jones detector and the Hough transform to localize the artery in the image. Then it identifies dominant scatterers, also known as interest points (IPs), whose positions are tracked by means of the pyramidal Lucas-Kanade method. Robustness to global movement and feature drift is achieved by a detection of global movement and subsequent IP re initialization, as well as an adaptive removal and addition of IPs. The performance of the proposed method is evaluated using simulated and real ultrasound video sequences. Using the Harris detector for IP detection, we obtained an overall root-mean-square error, averaged over all the simulated sequences, of 2.16 +/- 1.18 px. The computational complexity of our method is compatible with real-time operation; the runtime is about 30-70 ms/frame for sequences with a spatial resolution of up to 490 * 490 px. We expect that in future clinical practice, our method will be instrumental for non-invasive early stage diagnosis of atherosclerosis and other cardiovascular diseases. PMID- 29031985 TI - Spatial Angular Compounding Technique for H-Scan Ultrasound Imaging. AB - H-Scan is a new ultrasound imaging technique that relies on matching a model of pulse-echo formation to the mathematics of a class of Gaussian-weighted Hermite polynomials. This technique may be beneficial in the measurement of relative scatterer sizes and in cancer therapy, particularly for early response to drug treatment. Because current H-scan techniques use focused ultrasound data acquisitions, spatial resolution degrades away from the focal region and inherently affects relative scatterer size estimation. Although the resolution of ultrasound plane wave imaging can be inferior to that of traditional focused ultrasound approaches, the former exhibits a homogeneous spatial resolution throughout the image plane. The purpose of this study was to implement H-scan using plane wave imaging and investigate the impact of spatial angular compounding on H-scan image quality. Parallel convolution filters using two different Gaussian-weighted Hermite polynomials that describe ultrasound scattering events are applied to the radiofrequency data. The H-scan processing is done on each radiofrequency image plane before averaging to get the angular compounded image. The relative strength from each convolution is color-coded to represent relative scatterer size. Given results from a series of phantom materials, H-scan imaging with spatial angular compounding more accurately reflects the true scatterer size caused by reductions in the system point spread function and improved signal-to-noise ratio. Preliminary in vivo H-scan imaging of tumor-bearing animals suggests this modality may be useful for monitoring early response to chemotherapeutic treatment. Overall, H-scan imaging using ultrasound plane waves and spatial angular compounding is a promising approach for visualizing the relative size and distribution of acoustic scattering sources. PMID- 29031986 TI - Endovascular Interventions for Femoropopliteal Peripheral Artery Disease: A Network Meta-Analysis of Current Technologies. AB - PURPOSE: To use network meta-analysis (NMA) to determine the optimal endovascular strategy for management of femoropopliteal peripheral artery disease (PAD) given the lack of multiple prospective randomized trials to guide treatment decisions. MATERIALS AND METHODS: NMA is a new meta-analytic method that permits comparisons among any 2 therapies by combining results of a collection of clinical trials conducted in the same or similar patient population. NMA was used to analyze data from 15 randomized controlled trials (RCTs) and 10 prospective, multicenter, single-arm trials (combined evidence [CE] NMA) that evaluated target lesion revascularization (TLR) for 5 endovascular strategies: bare metal stent (BMS), polymer-covered metal stent (CMS), drug-eluting stent (DES), drug-coated balloon (DCB) and percutaneous transluminal angioplasty (PTA). RESULTS: The RCT and CE NMAs included 2,912 (6,091) patients with 3,151 (6,786) person-years of follow up. In the CE NMA, DCB provided a statistically significant 68% reduction in TLR compared with PTA and a statistically significant 53% reduction in TLR compared with BMS. BMS, CMS, and DES provided reductions in TLR of 33%, 48%, and 58% compared with PTA, with statistical significance achieved for CMS and DES. The significant reductions in TLR for DCB compared with PTA and BMS were replicated in the RCT NMA. CONCLUSIONS: This NMA demonstrated that DCB provided better reduction in TLR rates compared with PTA and BMS. PMID- 29031987 TI - Intra-articular Injection of Mesenchymal Stem Cells and Platelet-Rich Plasma to Treat Patellofemoral Osteoarthritis: Preliminary Results of a Long-Term Pilot Study. AB - PURPOSE: To assess the feasibility and safety of concomitant intra-articular (IA) knee injection of mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) under fluoroscopic guidance to treat patellofemoral osteoarthritis (OA). MATERIALS AND METHODS: This prospective study included 19 consecutive patients referred for fluoroscopically guided IA MSC and PRP injection for symptomatic patellofemoral chondropathy in which conservative treatment had failed. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score and magnetic resonance (MR) data, including T2 mapping sequence, were prospectively collected before and 6 months after treatment. Clinical data without MR imaging were collected until 12 months after the procedure. RESULTS: WOMAC scores were significantly lower after IA injection of MSCs and PRP at 6 months and during 12 months follow-up compared with baseline (mean score decreased from 34.3 to 14.2; P < .0018). Patients reported no complications. Concerning MR imaging follow-up, there were no significant differences in grade, surface, or T2 value of the chondral lesions (P > .375). CONCLUSIONS: IA injection of MSCs and PRP in early patellofemoral OA appears to allow functional improvement. PMID- 29031988 TI - New trends in childhood vision impairment in a developed country. AB - BACKGROUND: The Education Vision Assessment Clinic (EVAC) is a unique statewide service that reviews school children 4-18 years of age with low vision in Victoria, Australia, to determine their eligibility for educational support. The purpose of this study was to identify causes of vision impairment in students in Victoria using data from the EVAC. METHODS: Data collected from students who attended the EVAC at the Royal Victorian Eye and Ear Hospital, Melbourne, between the years 2003 and 2012 inclusive, were analyzed retrospectively. Participants were identified through the EVAC schedule of medical appointments. Medical records were reviewed for clinical and demographic information, including diagnosis of vision impairment and best-corrected visual acuity and/or visual fields. RESULTS: Of 543 students, 355 (65%) were eligible for educational assistance. Of those, 249 (70%) had best-corrected visual acuity between 20/60 and 20/200 and/or a field of vision of <20 degrees to 10 degrees , and 106 (30%) had a best-corrected visual acuity worse than 20/200 and/or a field of vision of <10 degrees . Common causes of vision impairment were retinal dystrophies (24%), optic nerve pathology (14%), albinism (14%), and infantile motor nystagmus (10%). CONCLUSIONS: Treatable and potentially preventable causes of vision impairment, such as retinopathy of prematurity and cataract, caused <10% of vision impairment cases in Victorian school children. Analysis of demographic trends is essential to supporting efforts to ensure that students with low vision, from any socioeconomic background, receive specialist teaching services. PMID- 29031989 TI - CHN1 gene mutation analysis in patients with Duane retraction syndrome. AB - PURPOSE: To investigate CHN1 (chimerin 1) gene mutations in patients with isolated nonsyndromic Duane syndrome and accompanying positive familial history, bilaterality, or various systemic disorders. METHODS: Patients with Duane retraction syndrome (DRS) and a positive family history of congenital ocular motility disturbance or bilateral involvement or accompanying any congenital disorder(s) seen consecutively at a single center from 2013 to 2016 were enrolled. All subjects underwent full ophthalmologic examination, including refraction, best-corrected visual acuity, ocular alignment and motility, globe retraction, and biomicroscopic or fundus evaluation. DNA samples were investigated by direct sequencing of the coding regions of the CHN1 gene. RESULTS: A total of 30 patients (15 males) were included (mean age, 11.8 +/- 10.4 years; range, 2-45 years): 8 cases presented with bilateral DRS; 22, with unilateral DRS. Family history of ocular motility abnormality was positive in 16 patients. Eleven cases had an additional congenital disorder. In 2 patients, 2 different mutations were detected in the CHN1 gene: p.E313K (c.937G>A) and p.N224S (c.671A>G). CONCLUSIONS: CHN1 mutations were identified in 2 bilateral cases and in 1 parent of 1 affected case. One mutation is novel and occurred with additional vertical gaze abnormalities. Additional genetic studies evaluating chimerin 1 (CHN1) and its role in the development of the ocular motor axis are needed to provide new data about these mutations and phenotypic variations. PMID- 29031990 TI - International standardization of diagnostic criteria for microvascular angina. AB - Standardization of diagnostic criteria for ischemic symptoms due to coronary microvascular dysfunction (CMD) is needed for further investigation of patients presenting with anginal chest pain consistent with "microvascular angina" (MVA). At the annual Coronary Vasomotion Disorders International Study Group (COVADIS) Summits held in August 2014 and 2015, the following criteria were agreed upon for the investigative diagnosis of microvascular angina: (1) presence of symptoms suggestive of myocardial ischemia; (2) objective documentation of myocardial ischemia, as assessed by currently available techniques; (3) absence of obstructive CAD (<50% coronary diameter reduction and/or fractional flow reserve (FFR) >0.80) (4) confirmation of a reduced coronary blood flow reserve and/or inducible microvascular spasm. These standardized criteria provide an investigative structure for mechanistic, diagnostic, prognostic and clinical trial studies aimed at developing an evidence base needed for guidelines in this growing patient population. Standardized criteria will facilitate microvascular angina registries and recruitment of suitable patients into clinical trials. Mechanistic research will also benefit from the implementation of standardized diagnostic criteria for MVA. PMID- 29031991 TI - Preoperative Toxoplasma gondii serostatus does not affect long-term survival of cardiac transplant recipients. Analysis of the Spanish Heart Transplantation Registry. AB - BACKGROUND: It's unclear whether pre-transplant T. gondii seropositivity is associated with impaired survival in heart transplant recipients. OBJECTIVES: To test the above-mentioned hypothesis in the Spanish Heart Transplantation Registry. METHODS: Post-transplant outcomes of 4048 patients aged >16years who underwent first, single-organ heart transplantation in 17 Spanish institutions from 1984 to 2014 were studied. Long-term post-transplant survival and survival free of cardiac death or retransplantation of 2434 (60%) T. gondii seropositive recipients and 1614 (40%) T. gondii seronegative recipients were compared. RESULTS: T. gondii seropositive recipients were older, had higher body mass index, and presented higher prevalence of hypertension, hypercholesterolemia, COPD and Cytomegalovirus seropositivity than T. gondii seronegative recipients. In univariable analysis, pre-transplant T. gondii seropositivity was associated with increased post-transplant all-cause mortality (non-adjusted HR 1.15; 95% CI 1.04-1.26). However, this effect was no longer statistically significant after multivariable adjustment by recipient's age and sex (adjusted HR 1.01, 95% CI 0.92-1.11). Extended multivariable adjustment by other potential confounders showed similar results (adjusted HR 0.99, 95% CI 0.89-1.11). T. gondii seropositivity had no significant effect on the composite outcome cardiac death or retransplantation (non-adjusted HR 1.08, 95% CI 0.95-1.24, p=0.235). The distribution of the causes of death was comparable in T. gondii seropositive and T. gondii seronegative recipients. No statistically significant impact of donor's T. gondii serostatus or donor-recipient T. gondii serostatus matching on post transplant survival was observed. CONCLUSIONS: Our analysis did not show a significant independent effect of preoperative T. gondii serostatus on long-term outcomes after heart transplantation. PMID- 29031992 TI - Assessing the utility of a prognostication model to predict 1-year mortality in patients undergoing radiation therapy for spinal metastases. AB - BACKGROUND CONTEXT: Predicting survival outcomes after radiation therapy (RT) alone for metastatic disease of the spine is a challenging task that is important to guiding treatment decisions (eg, determining dose fractionation and intensity). The New England Spinal Metastasis Score (NESMS) was recently introduced and validated in independent cohorts as a tool to predict 1-year survival following surgery for spinal metastases. This metric is composed of three factors: preoperative albumin, ambulatory status, and modified Bauer score, with the total score ranging from 0 to 3. PURPOSE: The purpose of this study was to assess the applicability of the NESMS model to predict 1-year survival among patients treated with RT alone for spinal metastases. STUDY DESIGN/SETTING: This study is a retrospective analysis. PATIENT SAMPLE: This sample included 290 patients who underwent conventional RT alone for spinal metastases. OUTCOME MEASURES: Patients' NESMS (composed of ambulatory status, pretreatment serum albumin, and modified Bauer score) were assessed, as well as their 1-year overall survival rates following radiation for metastatic disease of the spine. MATERIALS AND METHODS: This study is a single-institution retrospective analysis of 290 patients treated with conventional radiation alone for spinal metastases from 2008 to 2013. The predictive value of the NESMS was assessed using multivariable logistic regression modeling, adjusted for potential confounding variables. RESULTS: This analysis indicated that patients with lower NESMSs had higher rates of 1-year mortality. Multivariable analysis demonstrated a strong association between lower NESMSs and lower rates of survival. CONCLUSIONS: The NESMS is a simple prognostic scheme that requires clinical data that are often readily available and have been validated in independent cohorts of surgical patients. This study serves to validate the utility of the NESMS composite score to predict 1-year mortality in patients treated with radiation alone for spinal metastases. PMID- 29031993 TI - The GDF5 mutant BB-1 enhances the bone formation induced by an injectable, poly(l lactide-co-glycolide) acid (PLGA) fiber-reinforced, brushite-forming cement in a sheep defect model of lumbar osteopenia. AB - BACKGROUND CONTEXT: Targeted delivery of osteoinductive bone morphogenetic proteins (eg, GDF5) in bioresorbable calcium phosphate cement (CPC), potentially suitable for vertebroplasty and kyphoplasty of osteoporotic vertebral fractures, may be required to counteract augmented local bone catabolism and to support complete bone regeneration. The biologically optimized GDF5 mutant BB-1 may represent an attractive drug candidate for this purpose. PURPOSE: The aim of the current study was to test an injectable, poly(l-lactide-co-glycolide) acid (PLGA) fiber-reinforced, brushite-forming CPC containing low-dose BB-1 in a sheep lumbar osteopenia model. STUDY DESIGN/ SETTING: This is a prospective experimental animal study. METHODS: Bone defects (diameter 5 mm) were generated in aged, osteopenic female sheep and were filled with fiber-reinforced CPC alone (L4; CPC+fibers) or with CPC containing different dosages of BB-1 (L5; CPC+fibers+BB 1; 5, 100, and 500 ug BB-1; n=6 each). The results were compared with those of untouched controls (L1). Three and 9 months after the operation, structural and functional effects of the CPC (+/-BB-1) were analyzed ex vivo by measuring (1) bone mineral density (BMD); (2) bone structure, that is, bone volume/total volume (BV/TV) (assessed by micro-CT and histomorphometry), trabecular thickness (Tb.Th), and trabecular number (Tb.N); (3) bone formation, that is, osteoid volume/bone volume (OV/BV), osteoid surface/bone surface (OS/BS), osteoid thickness, mineralizing surface/bone surface (MS/BS), mineral apposition rate, and bone formation rate/bone surface; (4) bone resorption, that is, eroded surface/bone surface; and (5) compressive strength. RESULTS: Compared with untouched controls (L1), CPC+fibers (L4) and/or CPC+fibers+BB-1 (L5) significantly improved all parameters of bone formation, bone resorption, and bone structure. These effects were observed at 3 and 9 months, but were less pronounced for some parameters at 9 months. Compared with CPC without BB-1, additional significant effects of BB-1 were demonstrated for BMD, bone structure (BV/TV, Tb.Th, and Tb.N), and bone formation (OS/BS and MS/BS). The BB-1 effects on bone formation at 3 and 9 months were dose dependent, with 100 ug as the potentially optimal dosage. CONCLUSIONS: BB-1 significantly enhanced the bone formation induced by a PLGA fiber-reinforced CPC in sheep lumbar osteopenia. A single local dose as low as 100 ug BB-1 was sufficient to augment middle- to long term bone formation. A CPC containing the novel GDF5 mutant BB-1 may thus represent an alternative to the bioinert, supraphysiologically stiff polymethylmethacrylate cement presently used to treat osteoporotic vertebral fractures by vertebroplasty and kyphoplasty. PMID- 29031994 TI - Clinical classification criteria for neurogenic claudication caused by lumbar spinal stenosis. The N-CLASS criteria. AB - BACKGROUND CONTEXT: Because imaging findings of lumbar spinal stenosis (LSS) may not be associated with symptoms, clinical classification criteria based on patient symptoms and physical examination findings are needed. PURPOSE: The objective of this study was to develop clinical classification criteria that identify patients with neurogenic claudication (NC) caused by LSS. STUDY DESIGN: This study is a two-stage process that includes Phase 1, the Delphi process, and Phase 2, the cross-sectional study. PATIENT SAMPLE: Outpatients were recruited from spine clinics in five countries. OUTCOME MEASURE: The outcome measure includes items from the patients' history and physical examination. METHODS: In Phase 1, a list of potential predictors of NC caused by LSS was based on the available literature and was evaluated through a Delphi process involving 17 spine specialists (surgeons and non-surgeons) from eight countries. In Phase 2, 19 different clinical spine specialists from five countries identified patients they classified as having (1) NC caused by LSS, (2) radicular pain caused by lumbar disc herniation (LDH), or (3) non-specific low back pain (NSLBP) with radiating leg pain. The patients completed survey items and the specialists documented the examination signs. Coefficients from general estimating equation models were used to select predictors, to generate a clinical classification score, and to obtain a receiver operating characteristic curve. Conduction of the Delphi process, data management, and statistical analysis were partially supported by an unrestricted grant of less than 15,000 US dollars from Merck Sharp & Dohme. No fees were allocated to participating spine specialists. RESULTS: Phase 1 generated a final list of 46 items related to LSS. In Phase 2, 209 patients with leg pain caused by LSS (n=63), LDH (n=89), or NSLBP (n=57) were included. Criteria that independently predicted NC (p<.05) were age over 60 years, positive 30-second extension test, negative straight leg test, pain in both legs, leg pain relieved by sitting, and leg pain decreased by leaning forward or flexing the spine. A classification score using a weighted set of these criteria was developed. The proposed N-CLASS score ranged from 0 to 19 and had an area under the curve of 0.92, and the cutoff (>10/19) to obtain a specificity of >90.0% resulted in a sensitivity of 82.0%. CONCLUSIONS: Clinical criteria independently associated with neurogenic claudication due to LSS were identified. The use of these symptom and physical variables as a classification score for clinical research could improve homogeneity among enrolled patients. PMID- 29031995 TI - Comparison of deproteinization agents on bonding to developmentally hypomineralized enamel. AB - OBJECTIVE: To compare bonding of dental adhesive to hypomineralized enamel (HE) after pre-treatment with either 5% sodium hypochlorite (NaOCl) solution or papain based papacarie gel. METHODS: Normal enamel (NE) and HE obtained from hypomineralized first permanent molars were acid-etched with 32% phosphoric acid and randomly allocated into no deproteinization, deproteinization using 5% NaOCl, or deproteinization usping papacarie gel groups. Subsequently, the specimens were bonded, packed with composite resins and subjected to micro-shear bond strength (MSBS) testing and the data analysed using 2-way ANOVA and Tukey tests. Furthermore, specimens from all groups were subjected for qualitative analysis using scanning electron microscope. RESULTS: Two way-ANOVA showed that the factor "enamel substrate" was significant (p<0.001), "enamel pre-treatment" was not significant and interaction of the two factors was significant (p=0.005). HE produced inferior bonding with dental adhesive compared to NE. Enamel pre treatment with deproteinization agents enhanced bonding to HE. No significant difference in MSBS was evident between the two deproteinization agents (p>0.05). Qualitative analysis of acid-etched moderate HE showed barely visible enamel rods with irregular etching pattern. Following acid etching and deproteinization, Type I and II etching patterns were observed in moderate HE; while a porous enamel surface with more profound etching patterns in severe HE. CONCLUSIONS: Papain based papacarie could be an alternative deproteinization agent for bonding dental adhesive to HE. CLINICAL SIGNIFICANCE: Papain-based papacarie, a natural deproteinization agent and a proven chemo-mechanical caries removal agent could be an alternative to NaOCl for enhancement of bond durability of adhesive restorations to HE. PMID- 29031996 TI - Assessing the quality of dental clinical practice guidelines. AB - OBJECTIVES: The primary aim of this study was to evaluate the quality of published dental clinical guidelines using the AGREE II instrument. METHODS: Online searching of a wide range of organisations (national and International) was undertaken to identify dental clinical practice guidelines published between 2000 and 2014. The quality of each included guideline was assessed in relation to the AGREE II instrument by four assessors independently. Inter-rater agreement was assessed. Descriptive statistics and both univariate and multivariate analyses were conducted. RESULTS: 162 guidelines were identified. The overall mean quality score was 51.9% (SD 13.3). There was variation in the reporting quality of individual domains with both Applicability (20.4%) and Editorial Independence (34.25%) poorly reported. Variation between the overall quality scores for guidelines produced by different dental specialities was evident. The quality of guidelines improved per publication year (beta=0.76, 95% CI: 0.26, 1.26, p=0.003). Guidelines based on formal evidence (beta=19.94, 95% CI: 15.25, 24.64, p=0.001) achieved higher quality scores. CONCLUSION: Overall, the quality of clinical dental practice guidelines is suboptimal. There is variation in the overall quality, reporting of individual items and domains of the AGREE II instrument between different dental speciality clinical practice guidelines. Guidelines based on formal evidence achieved higher quality scores. CLINICAL SIGNIFICANCE: Clinicians should be aware of the variation in the quality of dental clinical guidelines in particular related to methodological rigour. The use of formal evidence may be a useful indicator of their quality prior to their implementation. PMID- 29031997 TI - A six-year longitudinal PET study of (+)-[11C]DTBZ binding to the VMAT2 in monkey brain. AB - INTRODUCTION: The longitudinal reproducibility of in vivo binding potential measures for [11C]dihydrotetrabenazine ([11C]DTBZ) binding to the vesicular monoamine transporter 2 (VMAT2) site in primate brain was examined using a unique dataset of repeated control PET imaging studies. METHODS: Forty-one dynamic [11C]DTBZ PET studies were completed in a single rhesus monkey. Imaging equipment (microPET P4), personnel, radiotracer characteristics (injected mass amounts, molar activity) and image data analysis (BPND-Logan) were consistent throughout the entire sequence of PET studies. RESULTS: Same day reproducibility of BPND Logan estimates of specific binding was very good (-3% and -7% changes) for two control-control sessions. Over the full 74 months, the average BPND-Logan value for [11C]DTBZ-PET studies was 4.19+/-0.52, for a variance of 12%. No age dependent change in binding potentials was observed over the six-year period. CONCLUSIONS: If the technical variables associated with PET scanner are consistently maintained, including PET scanner, imaging procedures and radiotracer preparation, in vivo biochemistry can be reproducibly measured in the primate brain over a multi-year period of time. PMID- 29031998 TI - Dominant foot could affect the postural control in vestibular neuritis perceived by dynamic body balance. AB - During attacks of vestibular neuritis (VN), patients typically lose postural balance, with resultant postural inclination, gait deviation toward the lesion side, and tendency to fall. In this study, we examined and analyzed static and dynamic postural control during attacks of VN to characterize differences in postural control between right and left VN. Subjects were patients diagnosed with VN at the Department of Otolaryngology, Toho University Sakura Medical Center, and underwent in-patient treatment. Twenty-five patients who had spontaneous nystagmus were assessed within 3days after the onset; all were right-foot dominant. Right VN was detected in nine patients (men: 4, women: 5; mean age: 57.6+/-17.08years [range: 23-82]) and left VN in 16 patients (men: 10, women: 6; mean age: 58.4+/-14.08years [range: 23-85 years]); the percentages of canal paresis of right and left VN were 86.88+/-18.1% and 86.02+/-15.0%, respectively. Statistical comparisons were conducted using the independent t-test. In stabilometry, with eyes opened, no significant differences were found between patients with right and left VN. However, with eyes closed, the center of horizontal movement significantly shifted ipsilateral (p<0.01). The differences in the lateral and anteroposterior body tracking test (BTT) were statistically significant (p=0.0039 and p=0.0376, respectively), with greater changes in cases with right VN. Thus, the dominant foot might contribute to the postural control mechanism. PMID- 29031999 TI - Analysis of biases in dynamic margins of stability introduced by the use of simplified center of mass estimates during walking and turning. AB - The ability to control the body's center of mass (CoM) is critical for preventing falls, which are a major health concern in aging populations. Control of the CoM has been assessed by characterizing dynamic margins of stability (MoS) which capture the dynamic relationship between the CoM and the base of support. Accurate estimation of CoM dynamics is best accomplished using a full-body marker set. However, a number of simplified estimates have been used throughout literature. Here, we determined the biases and sources of bias when computing MoS using four simplified CoM models, and we characterized how these biases varied in straight walking versus turning. CoM kinematics were characterized using a full body marker set, the lower extremities and trunk, lower extremities only, an average of four pelvic markers, and one pelvic marker alone. Significant bias was demonstrated for most methods and was larger during turning tasks compared to straight walking. In the fore-aft direction, only overestimates in the MoS were observed, and these ranged from 15 to 110% larger than the true MoS value. In the mediolateral direction, both under- and over-estimates were observed and ranged from -175 to 225%. Across tasks, bias was smallest when using the lower extremity plus trunk (-23 to 62%) and pelvis average methods (-71 to 43%). Sources of bias were attributed to misestimates of CoM height, velocity, and position. Together, our findings suggest that the 1) lower extremity and trunk model and 2) pelvis average model should be considered in future studies to minimize bias when simplified models of CoM dynamics are desired. PMID- 29032000 TI - Everyday multitasking habits: University students seamlessly text and walk on a split-belt treadmill. AB - With increasing numbers of adults owning a cell phone, walking while texting has become common in daily life. Previous research has shown that walking is not entirely automated and when challenged with a secondary task, normal walking patterns are disrupted. This study investigated the effects of texting on the walking patterns of healthy young adults while walking on a split-belt treadmill. Following full adaptation to the split-belt treadmill, thirteen healthy adults (23+/-3years) walked on a tied-belt and split-belt treadmill, both with and without a simultaneous texting task. Inertial-based movement monitors recorded spatiotemporal components of gait and stability. Measures of spatial and temporal gait symmetry were calculated to compare gait patterns between treadmill (tied belt and split-belt) and between texting (absent or present) conditions. Typing speed and accuracy were recorded to monitor texting performance. Similar to previous research, the split-belt treadmill caused an alteration to both spatial and temporal aspects of gait, but not to time spent in dual support or stability. However, all participants successfully maintained balance while walking and were able to perform the texting task with no significant change to accuracy or speed on either treadmill. From this paradigm it is evident that when university students are challenged to text while walking on either a tied-belt or split-belt treadmill, without any other distraction, their gait is minimally affected and they are able to maintain texting performance. PMID- 29032001 TI - Efficacy of self-retained cryopreserved amniotic membrane for treatment of neuropathic corneal pain. AB - PURPOSE: Treatment of neuropathic corneal pain (NCP) remains intricate, and involves a long-term combined multistep approach. The self-retained cryopreserved amniotic membrane (PROKERA(r), Bio-Tissue, Miami,FL) has been utilized for multiple ocular surface disorders. We evaluate the efficacy, safety, and tolerability of ProKera(r) Slim [PKS] and ProKera(r) Clear [PKC] in the treatment of NCP. METHODS: Retrospective case series of 9 patients who received PKS/PKC for the acute treatment of NCP. Patient demographics, prior therapies, clinical examination, duration of PKS/PKC retention, changes in pain severity, corneal subbasal nerve density and morphology by in vivo confocal microscopy (IVCM; HRT3/RCM, Heidelberg Engineering, Heidelberg, Germany), and adverse events were recorded. RESULTS: PKS/PKC were placed in 10 eyes of 9 patients. Pain severity improved by 72.5 +/- 8.4% (from 6.3 +/- 0.8 to 1.9 +/- 0.6, scale 1-10, p = 0.0003) after retention for 6.4 +/- 1.1 days. Despite shorter retention for 4.0 +/- 0.7 days in patients with ring dysesthesia (4 eyes) or premature implant disengagement (2 eyes), pain severity still improved by 63.1 +/- 12.5% (from 6.8 +/- 1.0 to 2.4 +/- 0.9, p = 0.009). During a follow-up of 9.3 +/- 0.8 months, two patients reported recurrence of pain after 2.3 and 9.6 months respectively, treated effectively with additional PKS/PKC. IVCM showed a 36.6 +/- 17.6% increase in total nerve density, from 17,700.9 +/- 1315.7 to 21,891.3 +/- 2040.5 MUm/mm2 (p = 0.047), while the fellow PKS/PKC-untreated eyes did not show a significant interval change. Main nerve trunk and branch nerve densities were not statistically different. Dendritiform cell density decreased from 46.0 +/- 8.2 to 32.0 +/- 6.0 cells/mm2 (p = 0.01). CONCLUSIONS: PKS/PKC provide a safe and effective treatment approach to achieve sustained pain control in patients with NCP. PMID- 29032002 TI - Recoveries of rare elements Ga, Ge, In and Sn from waste electric and electronic equipment through secondary copper smelting. AB - The recycling and recovery of valuable metals from waste materials is one of the key issues in maintaining the sustainability of base and rare metals. Especially WEEE (Waste Electric and Electronic Equipment) can be considered as a high potential resource for a number of valuable and critical metals like gallium, germanium and indium. During the mechanical processing of WEEE, these metals are primary separated into the non-ferrous scrap fractions, including copper fraction. As a consequence, the behavior of these valuable metals and the possibility of their recycling in secondary copper smelting are of great interest. This study experimentally investigates the distribution behavior of indium, gallium, germanium and tin between metallic copper and lime-free / lime containing alumina iron silicate slags (LCu/s[Me] = [Me]Copper/(Me)Slag), as well as between solid Al-Fe spinel and slags (Lsp/s[Me] = {Me}spinel/(Me)slag). Moreover, the copper-slag-spinel equilibrium systems are examined. The experiments were executed simulating high alumina-bearing copper scrap smelting in typical black copper smelting conditions of pO2 = 10-10-10-5 atm (1 atm = 1.01325 * 105 Pa) and T = 1300 degrees C. The experimental technique employed utilized a highly advanced equilibration-rapid quenching method followed by Electron Probe Micro-Analysis (EPMA). The results show that tin and indium can be efficiently recovered into the copper phase in reducing process conditions (pO2 below 10-7 atm), whereas gallium dissolved preferentially into the solid spinel phase in all conditions examined. Gallium dissolution into slag and spinel was found to occur as GaO1.5, whereas indium in spinel was determined to be as InO1.5. In addition, germanium was seen to distribute preferentially into the copper phase with LCu/s[Ge] = 2-4, although its concentrations in all phases present were relatively low. Thus, the main route for germanium can be considered to be vaporization. PMID- 29032003 TI - Electrodialytic extraction of Cr from water-washed MSWI fly ash by changing pH and redox conditions. AB - Electrodialytic process offers a range of possibilities to waste management by electrodialytic separation (EDS) of heavy metals, depending on how the process is designed. Using three EDS cell setups (two two-compartment and one three compartment) and their combinations, the extraction of Cr from municipal solid waste incineration fly ash by changing pH and redox conditions was investigated in the present work. The experiments were designed into single, two and three steps, based on the number of setups (by changing EDS cells) or effective setups (by shifting working electrode pairs) used. Prior to EDS the ash studied went through pretreatments such as water-washing and dry-sieving with a 50 um sieve. The results showed that Cr was strongly bound in the ash, and the major fraction remained bound after the different treatments. Two/three-step treatment, which obtained the maximum Cr extraction rate of 27.5%, is an improvement on the single step that extracted maximum 3.1%. The highest extraction was obtained due to the combined extraction of Cr(III) under low pH (accompanied with high redox) conditions and Cr(VI) under high pH (low redox) conditions subsequently. The Cr leaching from the treated ashes with acidic pH was lower than from those with alkaline pH; after the three-step treatment, Cr leaching was much lower from the coarse fraction (> 50 um), as compared to the fine (<= 50 um) or the unsieved ash. As for the coarse fraction, two/three-step treatment reduced the leaching of Cr compared to the single-step in the same pH range (either acidic or alkaline). PMID- 29032004 TI - TNFR2: A Novel Target for Cancer Immunotherapy. AB - Immune checkpoint inhibitors (ICIs) have revolutionized cancer therapy but exhibit variable efficacy and relapse and can induce autoimmunity. Tumor necrosis factor (TNF) receptor 2 (TNFR2) is a signaling molecule found on the surface of a subset of potent regulatory T cells (Tregs) that can activate the proliferation of these cells through nuclear factor kappa B (NF-kappaB). TNFR2 is also abundantly expressed on the surface of many human tumors. We propose that blocking TNFR2 might target abundant TNFR2+ tumor-infiltrating Tregs and directly kill TNFR2-expressing tumors. We also posit that TNFR2 inhibitors might potentially constitute safer and more targeted alternatives to ICI cancer treatment because the expression of TNFR2 on immune cells, concentrated in the tumor microenvironment of various cancers, appears to be more selective than that of checkpoint molecules. PMID- 29032005 TI - Promoting In Vitro Gametogenesis Research with a Social Understanding. AB - Recent advances in in vitro gametogenesis (IVG), including in humans, have raised ethical concerns regarding the potential misuse and manipulation of 'artificial embryos'. However, basic research on IVG is expected to be of immense scientific and social value provided that the ethical, legal, and social issues are carefully considered. PMID- 29032006 TI - Bi-orifice approach to nasal intubation in children: A case series of anticipated difficult airways undergoing orthognathic surgeries. PMID- 29032007 TI - The effect of sevoflurane compared to propofol maintenance on post-surgical quality of recovery in patients undergoing an ambulatory gynecological surgery: A prospective, randomized, double-blinded, controlled, clinical trial. AB - OBJECTIVE: The main objective of the current investigation was to evaluate the effect of propofol used as anesthetic maintenance compared to sevoflurane on global post-surgical quality of recovery in female patients undergoing ambulatory gynecological surgery. DESIGN: The study was a prospective randomized double blinded, controlled, clinical trial. INTERVENTIONS: Healthy female subjects were randomized to receive propofol or sevoflurane as anesthetic maintenance. MEASUREMENTS: The primary outcome was the Quality of Recovery 40 (QOR-40) questionnaire at 24h after surgery. Other data collected included opioid consumption, pain scores and time to hospital discharge. P<0.05 was used to reject the null hypothesis for the primary outcome. MAIN RESULTS: Ninety subjects were randomized and sixty seven completed the study. Patient's baseline characteristics and surgical factors were not different between study groups. There was not a clinically significant difference in the global QoR-40 scores between the sevoflurane and the propofol groups, median (IQR) of 175 (163 to 181) and 176 (163 to 184), respectively, P=0.97. There was an inverse relationship (rho=-0.42) between the opioid consumption in PACU (IV morphine equivalents) and 24h postoperative quality of recovery (P<0.001) and an inverse relationship (rho= 0.48) between the oral opioid consumption at home (oral morphine equivalents) and 24h postoperative quality of recovery, P<0.001. CONCLUSIONS: Our current results do not support the use of total intravenous anesthesia as an efficacious strategy to improve global quality of recovery after ambulatory surgery. Opioid consumption in the PACU is an earlier surrogate that can be utilized to identify ambulatory patients with a high likelihood to develop poor global quality of recovery and who may benefit from more efficacious strategies to improve global quality of recovery. TRIAL REGISTRATION: ClinicalTrial.gov; url: http://www.clinicaltrials.gov; registration identified: NCT 01755234. PMID- 29032008 TI - 3-Iodothyroacetic acid (TA1), a by-product of thyroid hormone metabolism, reduces the hypnotic effect of ethanol without interacting at GABA-A receptors. AB - 3-iodothyroacetic acid (TA1) is among the by-products of thyroid hormone metabolism suspected to mediate the non-genomic effects of the hormone (T3). We aim to investigate whether TA1 systemically administered to mice stimulated mice wakefulness, an effect already described for T3 and for another T3 metabolite (i.e. 3-iodothryonamine; T1AM), and whether TA1 interacted at GABA-A receptors (GABA-AR). Mice were pre-treated with either saline (vehicle) or TA1 (1.32, 4 and 11 MUg/kg) and, after 10 min, they received ethanol (3.5 g/kg, i.p.). In another set of experiments, TA1 was administered 5 min after ethanol. The latency of sleep onset and the time of sleep duration were recorded. Voltage-clamp experiments to evaluate the effect of 1 MUM TA1 on bicuculline-sensitive currents in acute rat hippocampal slice neurons and binding experiments evaluating the capacity of 1, 10, 100 MUM TA1 to displace [3H]flumazenil from mice brain membranes were also performed. 4 MUg/kg TA1 increases the latency of onset and at 1.32 and 4 MUg/kg it reduces the duration of ethanol-induced sleep only if administered before ethanol. TA1 does not functionally interact at GABA-AR. Overall these results indicate a further similarity between the pharmacological profile of TA1 and that of T1AM. PMID- 29032009 TI - Potential for stem cell treatment in manganism. AB - Development of manganism (also known as manganese neurotoxicity) is a major complication of manganese exposure in which neurological dysfunction is linked to accumulation of the metal in brain. Due to neuronal cell death in basal ganglia structures, particularly the globus pallidus, functional recovery is limited. Bearing a resemblance to Parkinson's disease, effective treatment for manganism is currently limited. However, the rapidly developing field of stem cell research offers new hope for the treatment of illnesses in which neurodegeneration is a major feature. The first part of this review will focus on the clinical features and pathophysiology of cerebral damage resulting from exposure to manganese, including the role of astrocytes, disruption of energy metabolism, involvement of oxidative stress, excitotoxicity, and inflammation, with the second part exploring how stem cells may provide an important therapeutic strategy for patients with this major neurologic disorder. PMID- 29032010 TI - Dual effects of insect nAChR chaperone RIC-3 on hybrid receptor: Promoting assembly on endoplasmic reticulum but suppressing transport to plasma membrane on Xenopus oocytes. AB - Resistance to inhibitors of cholinesterase (RIC) -3 promotes the maturation (folding and assembly) of neuronal nicotinic acetylcholine receptors (nAChRs) as a molecular chaperone. The modulation effects of RIC-3 on homomeric alpha7 nAChRs are always positive, but its effects on heteromeric subtypes are inconsistent among reports. In this study, five RIC-3 isoforms were identified from Locusta migratoria. Four isoforms showed obvious effects on hybrid receptor Localpha1/rbeta2 expressed in Xenopus oocytes. As a representative, the co expression of RIC-3v4 exhibited the decreased agonist responses (Imax) on oocytes, lower specific [3H]epibatidine binding (Bmax) on plasma membrane protein (PMP), and reduced subunit levels in PMP, which showed that the mature Localpha1/rbeta2 on the plasma membrane was decreased by the co-expression of RIC 3. In contrast, the [3H]epibatidine binding and mature Localpha1/rbeta2 levels in the endoplasmic reticulum membrane protein (ERMP) were much increased when co expressing with RIC-3v4. The [3H]epibatidine binding and mature Localpha1/rbeta2 levels in total membrane protein (TMP) gave the similar results as that in ERMP. Taking data together, the results showed that the co-expression of RIC-3 increased the mature Localpha1/rbeta2 receptor levels on ER of Xenopus oocytes, but these mature receptors were mostly kept on ER and suppressed to transport to plasma membrane. PMID- 29032011 TI - Sitagliptin enhances the neuroprotective effect of pregabalin against pentylenetetrazole-induced acute epileptogenesis in mice: Implication of oxidative, inflammatory, apoptotic and autophagy pathways. AB - The current investigation aimed at studying the anti-epileptogenic effect of sitagliptin. The possible effect of the drug in combination with pregabalin in pentylenetetrazole (PTZ)- induced seizures was studied. In addition, the postulated mechanisms that could mediate such effect were explored namely, suppression of oxidative stress and neuro-inflammatory markers, autophagy and apoptosis. Seven days prior to PTZ (60 mg/kg, sc) injection, mice were treated with sitagliptin (5, 15, and 60 mg/kg, twice daily, orally) or pregabalin (30 mg/kg, once daily, orally) or their combination. At the end of the experiment, several parameters were assessed including: oxidative/nitro-oxidative stress such as superoxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GP-x) catalase (CAT), and lipid peroxidation assessed as malondialdehyde (MDA), nitrate/nitrite (NOx), 3-nitrotyrosine (3-NT). Seizure latency was evaluated. Neuronal damage was also assessed by performing tissue staining by hematoxylin and eosin, estimating hippocampus level of glutamate, gamma-aminobutyric acid (GABA), glial fibrillary acidic protein (GFAP) and brain-derived neurotrophic factor (BDNF). Also, markers for inflammation, autophagy and apoptosis were measured, nuclear factor erythroid-derived 2- like 2 (Nrf2), nuclear factor kappa B (NF-kappaB), phosphatidylethanolamine-conjugated form of microtubule-associated protein light chain-3 (LC3-II), casapase-3, Bcl-2-like protein 4 (BAX) and glucagon like peptide-1 (GLP-1) activity. Sitagliptin significantly suppressed epileptogenesis in PTZ-induced seizures. Sitagliptin counteracted neuronal damage and all biochemical, and histo-chemical alteration induced by PTZ. Also, a more significant protective effect was observed after combination with pregabalin. This study is indicative for the antiepileptogenic potential of sitagliptin with or without pregabalin in the PTZ model of epilepsy which is likely to be through its effect on antioxidant, anti-apoptotic and autophagic pathways. PMID- 29032012 TI - Continuous subcutaneous apomorphine infusion in Parkinson's disease patients with cognitive dysfunction: A retrospective long-term follow-up study. AB - INTRODUCTION: Continuous apomorphine infusion (CAI) is an advanced therapy in fluctuating Parkinson's disease (PD). The use of CAI is controversial in PD patients with cognitive dysfunction including visual hallucinations (VHs), and orthostatic hypotension (OH). This study was set-up to analyze the effectiveness and safety of CAI in elderly PD patients with cognitive dysfunction. METHODS: This new-user cohort study identified fluctuating PD patients who started CAI treatment at the rehabilitation unit of Parkinson Expertise Center (RU-PEC) Groningen, from November 2004 until 2016. Efficacy and safety data included motor function, cognitive status, OH and VHs, and was analyzed retrospectively. Pre existent non-motor symptoms were treated optimally before starting CAI. RESULTS: Forty-five fluctuating PD patients (age: 70.9 +/- 8.1 yrs, disease duration: 10.8 +/- 4.8 yrs) were identified, with pre-existing cognitive dysfunction, VHs (71%), and OH (26%). During the stay at RU-PEC (median 52 days) apomorphine was successfully titrated without worsening of pre-existing VHs and OH. The mean daily apomorphine dose was 66 +/- 28 mg, accompanied by a reduction of levodopa equivalent daily dose (LEDD) with 17%. The duration of ON-time and OFF-time significantly improved with +2.36 h (25%) and -1.66 h (-45%), respectively, while dyskinesia duration did not change. During long-term follow-up (median of 26 months) VHs and OH worsened in 9 and 4 patients, which necessitated discontinuation in 4 cases. CONCLUSION: This study demonstrates that CAI is also an effective treatment in advanced PD patients with concomitant cognitive dysfunction including VHs and OH, provided that these comorbidities are treated adequately as well. PMID- 29032013 TI - The presence of depression and anxiety do not distinguish between functional jerks and cortical myoclonus. AB - INTRODUCTION: Functional movement disorders are accompanied by a high occurrence of psychopathology and cause serious impairments in quality of life. However, little is known about this in patients with functional jerks and no comparison has been made between patients with functional jerks and organic myoclonus. This case control study compares the occurrence of depression, anxiety and quality of life (HR-QoL) in patients with functional jerks and cortical myoclonus. METHODS: Patients with functional jerks and cortical myoclonus, consecutively recruited, were compared on self-rated anxiety (Beck Anxiety Inventory), depression (Beck Depression Inventory), health-related quality of life (RAND-36), and myoclonus severity (UMRS and CGI-S rating scales). RESULTS: Sixteen patients with functional jerks and 23 with cortical myoclonus were evaluated. There was no significant difference in depression (44% vs. 43%) or anxiety (44% vs. 47%) scores between groups. The HR-QoL was similarly impaired except that functional jerks patients reported significantly more pain (p < 0.05). Only in the functional jerks group myoclonus severity correlated with depression and anxiety. CONCLUSION: Depression and anxiety scores are high and do not discriminate between functional jerks and cortical myoclonus. Quality of life was equally impaired in both sub-groups, but pain was significantly worse in patients with functional jerks. PMID- 29032014 TI - High-intermediate prostate cancer treated with low-dose-rate brachytherapy with or without androgen deprivation therapy. AB - PURPOSE: To describe outcomes of men with unfavorable (high-tier) intermediate risk prostate cancer (H-IR) treated with low-dose-rate (LDR) brachytherapy, with or without 6 months of androgen deprivation therapy (ADT). METHODS AND MATERIALS: Patients with H-IR prostate cancer, treated before 2012 with LDR brachytherapy without external radiation are included. Baseline tumor characteristics are described. Outcomes between groups receiving ADT are measured by Phoenix (nadir +2 ng/mL), and threshold 0.4 ng/mL biochemical relapse definitions (bNEDs), as well as clinical end points. Standard descriptive and actuarial statistics are used. RESULTS: Two hundred sixty men were eligible, 139 (53%) did not receive ADT and 121 (47%) did. Median follow-up was 5 years. Men treated with ADT had higher T stage and percent positive cores but lower pathologic grade group. bNED rates with and without ADT at 5 years are 86% and 85% (p = 0.52) with the Phoenix definition, and 83% and 78% (p = 0.13) with the threshold definition. Local recurrence or metastasis were rare in both groups (<5%, p = not significant). Death from prostate cancer only occurred in 4 patients, 2 in each group. Overall survival was 85% in those treated with ADT and 93% without at 8 years, p = 0.15. CONCLUSIONS: The addition of 6 months of ADT to LDR brachytherapy for H-IR prostate cancer does not improve 5 year prostate specific antigen control, and we no longer routinely recommended it. PMID- 29032015 TI - Possible positive effect of the APOE epsilon2 allele on cognition in early to mid adult life. AB - BACKGROUND: epsilon4 allele possession is associated with an increased risk of Alzheimer's disease. Its effects earlier in life are less well understood. Previous studies have reported both detrimental effects and a lack of effect on cognition outside dementia. We used genotype based recall from the ALSPAC study to investigate whether APOE genotype influences cognition in earlier adult life. METHODS: We invited all individuals with the rarer epsilon22 or epsilon44 genotypes and equal numbers of those with epsilon32, epsilon33 or epsilon34 APOE genotypes (total n invited = 1936, ages 23-67). Participants were screened for dementia using the Addenbrooke's Cognitive Examination Revised (ACE-R). Participants were asked to complete a 3 h battery of neuropsychological tests covering a range of cognitive domains. The primary outcome was performance on the Rey Auditory Verbal Learning Test (RAVLT). Transformation of variables was used where required to permit parametric testing. As genotypes are unlikely to be confounded unadjusted analyses were performed. RESULTS: 114 participants were recruited to the study (39 epsilon33, 27 epsilon34, 15 epsilon44, 26 epsilon32 & 7 epsilon22). epsilon4+ participants had higher scores on the cognitive failures questionnaire (10 point increase, p = 0.006) but no deficits on objective cognitive testing. epsilon2 carriers had slightly better episodic memory performance (p = 0.016), slightly improved n-back accuracy and better executive functioning (trails A&B, p = 0.005). CONCLUSIONS: It is intriguing that the epsilon2+ group performed better as this group have a lower risk of Alzheimer's disease. Most previous studies have analysed as epsilon4/non epsilon4 so may have missed this effect. PMID- 29032016 TI - Neuropsychological outcomes following paediatric temporal lobe surgery for epilepsies: Evidence from a systematic review. AB - OBJECTIVE: The systematic review aimed to assess the neuropsychological outcomes of temporal lobe resections for epilepsy in children. Additional objectives included determining whether earlier age at surgery leads to better neuropsychological outcomes; the relationships between and predictors of these outcomes. METHODS: Using advanced search terms, a systematic review of electronic databases was conducted, comprising MEDLINE, Embase, PsycINFO, Global Health, Web of Science and CINAHL. Included studies reported on outcome following neurosurgical treatment for epilepsy. Specifically, studies were included if they reported neuropsychological outcomes and were concerned only with temporal lobe resection. RESULTS: 73 studies met inclusion criteria. For reported neuropsychological outcomes, the majority of participants remained stable after surgery; some declined and some improved. There was some evidence for increased material-specific memory deficits after temporal lobe surgery based on resection side, and more positive cognitive outcome for those with lower pre-surgical ability level. SIGNIFICANCE: Retrieved evidence highlights the need for improvements to quality of methodology and reporting. Appropriately designed prospective multicentre trials should be conducted with adequate follow-up for long-term outcomes to be measured. Core outcome measures should be agreed between centres. This would permit higher quality evidence so that clinicians, young people and their families may make better informed decisions about whether or not to proceed with surgery and likely post-operative profile. PMID- 29032017 TI - Next-generation sequencing technology a new tool for killer cell immunoglobulin like receptor allele typing in hematopoietic stem cell transplantation. AB - Killer cell Immunoglobulin-like Receptor (KIR) genes are a family of genes located together within the leukocyte receptor cluster on human chromosome 19q13.4. To date, 17 KIR genes have been identified including nine inhibitory genes (2DL1/L2/L3/L4/L5A/L5B, 3DL1/L2/L3), six activating genes (2DS1/S2/S3/S4/S5, 3DS1) and two pseudogenes (2DP1, 3DP1) classified into group A (KIR A) and group B (KIR B) haplotypes. The number and the nature of KIR genes vary between the individuals. In addition, these KIR genes are known to be polymorphic at allelic level (907 alleles described in July 2017). KIR genes encode for receptors which are predominantly expressed by Natural Killer (NK) cells. KIR receptors recognize HLA class I molecules and are able to kill residual recipient leukemia cells, and thus reduce the likelihood of relapse. KIR alleles of Hematopoietic Stem Cell (HSC) donor would require to be known (Alicata et al. Eur J Immunol 2016) because the KIR allele polymorphism may affect both the KIR+ NK cell phenotype and function (Gagne et al. Eur J Immunol 2013; Bari R, et al. Sci Rep 2016) as well as HSCT outcome (Boudreau et al. JCO 2017). The introduction of the Next Generation Sequencing (NGS) has overcome current conventional DNA sequencing method limitations, known to be time consuming. Recently, a novel NGS KIR allele typing approach of all KIR genes was developed by our team in Nantes from 30 reference DNAs (Maniangou et al. Front in Immunol 2017). This NGS KIR allele typing approach is simple, fast, reliable, specific and showed a concordance rate of 95% for centromeric and telomeric KIR genes in comparison with high-resolution KIR typing obtained to those published data using exome capture (Norman PJ et al. Am J Hum Genet 2016). This NGS KIR allele typing approach may also be used in reproduction and to better study KIR+ NK cell implication in the control of viral infections. PMID- 29032018 TI - 100% voluntary blood donation in India by 2020: A difficult goal to fathom. PMID- 29032019 TI - [Experience with infections in the use of extracorporeal membrane oxygenation]. AB - OBJECTIVE: To identify risk factors associated with infectious complications acquired by paediatric patients during extracorporeal life support (ECLS). PATIENTS AND METHODS: Patients under ECLS from January 2011 to December 2014 have been retrospectively reviewed and data on demographics, care and infectious complications were collected. RESULTS: There were 50 ECLS assistances in the study period, of which 20 patients had 23 infectious complications: 16 were bloodstream infections, with coagulase negative staphylococci being the predominant isolate (there were 2 cases of candidaemia). Age, site of cannulation procedure, cannulation site, severe coagulopathy, and surgical interventions during assistance were analysed as risk factors for infectious complications, but no significant differences were found. ECLS duration was significantly longer in patients with infectious complications (8.91 vs 5.91 days; P=.039). There were no significant differences as regards Paediatric Intensive Care Unit (PICU) stay, or in survival. CONCLUSIONS: Infectious complications during ECLS are very common, and ECLS duration is significantly longer in patients with infections. Measures should be put in place to prevent infectious complications and reduce time on ECLS. PMID- 29032020 TI - Long-term impact of suboptimal rotavirus vaccines on acute gastroenteritis in hospitalized children in Northern Taiwan. AB - BACKGROUND/PURPOSE: Rotavirus vaccines were launched in Taiwan since early 2006. Our study was aimed to figure out long-term extended molecular epidemiology in acute gastroenteritis (AGE) in hospitalized young children after rotavirus vaccination in Taiwan. METHODS: During the 10-year period from January 2007 to December 2016, fecal samples from children under 5 years old with AGE hospitalized in Chang Gung Children's Hospital (CGCH) were examined for enteric pathogens and they were divided into two time intervals: early post-vaccine (Jan. 2007 to Dec. 2011; EPV) and late post-vaccine (Jan. 2012 to Dec. 2016; LPV). RESULTS: In total, 837 patients with AGE were enrolled with complete study. In the EPV period, 106 (26.7%) rotavirus and 65 (16.4%) norovirus infections were identified as major pathogens. In the LPV period, 79 (17.9%) rotavirus and 98 (22.2%) norovirus infections were diagnosed. Statistical analyses showed a significantly decreased prevalence of rotavirus infection (P = 0.002) and a significantly increased prevalence of norovirus (P = 0.034) and enteric bacterial infections (P < 0.001). A substantial decrease of rotavirus G1 (P = 0.079) in the LPV period and norovirus GII.4 prevailed through the decade. CONCLUSION: In Taiwan, under a suboptimal rotavirus vaccination policy, there was a marked decrease in the rate of rotavirus AGE of hospitalized young children. Significantly increased norovirus infection has replaced rotavirus as the leading cause. Expansion of rotavirus vaccine coverage, development of a norovirus prevention strategy, and sustained bacterial infection control are important for AGE containment in children in Taiwan. PMID- 29032021 TI - Clinical characteristics and survival outcomes of terminally ill patients undergoing withdrawal of mechanical ventilation. AB - BACKGROUND: Withdrawal of mechanical ventilation is an important, but rarely explored issue in Asia during end-of-life care. This study aimed to describe the clinical characteristics and survival outcomes of terminally ill patients undergoing withdrawal of mechanical ventilation in Taiwan. METHODS: One-hundred thirty-five terminally ill patients who had mechanical ventilation withdrawn between 2013 and 2016, from a medical center in Taiwan, were enrolled. Patients' clinical characteristics and survival outcomes after withdrawal of mechanical ventilation were analyzed. RESULTS: The three most common diagnoses were organic brain lesion, advanced cancer, and newborn sequelae. The initiator of the withdrawal process was family, medical personnel, and patient him/herself. The median survival time was 45 min (95% confidence interval, 33-57 min) after the withdrawal of mechanical ventilation, and 102 patients (75.6%) died within one day after extubation. The median time from diagnosis of disease to receiving life sustaining treatment and artificial ventilation support, receiving life sustaining treatment and artificial ventilation support to "Withdrawal meeting," "Withdrawal meeting" to ventilator withdrawn, and ventilator withdrawn to death was 12.1 months, 19 days, 1 day, and 0 days, respectively. Patients with a diagnosis of advanced cancer and withdrawal initiation by the patients themselves had a significantly shorter time interval between receiving life-sustaining treatment and artificial ventilation support to "Withdrawal meeting" compared to those with non-cancer diseases and withdrawal initiation by family or medical personnel. CONCLUSION: This study is the first observational study to describe the patients' characteristics and elaborate on the survival outcome of withdrawal of mechanical ventilation in patients who are terminally ill in an Asian population. Understanding the clinical characteristics and survival outcomes of mechanical ventilation withdrawal might help medical personnel provide appropriate end-of-life care and help patients/families decide about the withdrawal process earlier. PMID- 29032022 TI - Outcomes of Newly Diagnosed Chronic Phase Chronic Myeloid Leukemia Following an Elective Switch From Second-Generation Tyrosine Kinase Inhibitor to Imatinib. AB - The second-generation tyrosine kinase inhibitors (TKIs) (2G-TKIs) dasatinib (DAS) and nilotinib (NIL) yield faster responses in newly diagnosed chronic phase (CP) chronic myeloid leukemia (CML) as compared with imatinib (IM); however, long-term safety of these agents is a growing concern. We identified 20 patients with CP CML diagnosed between August 2013 and October 2016 who initiated 2G-TKIs and were then switched after optimal response at 3 months to IM. Second-generation TKIs initiated were DAS (n = 15), NIL (n = 3), or both sequentially due to intolerance (n = 1). One other patient initiated therapy with ponatinib on trial. Response was assessed by quantitative reverse-transcriptase polymerase chain reaction (qRT PCR) for BCR-ABL1 levels every 3 months and in patients with qRT-PCR values less than 10% at 3 months, IM was started at 400 mg/d. IM was well tolerated except in 2 patients who required dose-reduction and discontinuation due to grade 2 skin rash (1) and grade 2 anxiety (1). After initiation of IM therapy, the BCR-ABL1 qRT-PCR levels trended down as expected. At 12 months 16 (84.2%) of 19 evaluable patients showed a 3 log (major molecular remission) or better reduction in their PCR levels. In conclusion, this retrospective analysis shows that IM can be safely and effectively administered following optimal response to 2G-TKIs. A prospective trial exploring this approach is currently enrolling and will be needed to confirm the safety and efficacy of this therapeutic approach. PMID- 29032023 TI - Social determinants of drug-related mortality in a general population. AB - BACKGROUND: We investigated the association between social determinants and a broad selection of drug-related deaths in a general population. METHODS: We conducted a follow-up of an 11% random sample of working-age Finnish residents for 1996-2007 linked with an oversampling of deaths and population registration data on social characteristics. We defined total drug-related deaths as those from psychoactive substance use disorders and drug-induced poisonings (drug induced deaths) as well as drug-related accidents, homicides, illnesses, and suicides. RESULTS: The number of drug-related deaths was three times that of drug induced deaths. We found the highest hazard ratios (HRs) for total drug-related mortality for long-term unemployment (4.9; 95% confidence interval [CI], 4.3 5.6), short-term unemployment (3.9; 95% CI, 3.5-4.4), and retirement (5.8; 95% CI, 5.1-6.8). The HRs were highest for mortality related to psychoactive substance use disorders and lowest for mortality related to drug-related suicides. The differences were large for both sexes. CONCLUSIONS: Drug-related mortality was associated with social disadvantage; however, the strength of the association varied by drug-related cause of death. Primary and secondary prevention of drug use should particularly target disadvantaged groups. PMID- 29032024 TI - Characteristics of self-inflicted drug overdose deaths in North Carolina. AB - BACKGROUND: Drug overdose mortality is a major public health concern in the United States, with prescription opioids contributing substantially to recent increases in drug overdose deaths. Compared to unintentional drug overdose deaths, relatively little data describes intentional self-inflicted drug overdose deaths (i.e., suicide by drug overdose). The aim of this study was to examine the characteristics of self-inflicted drug overdose deaths, overall and in comparison to unintentional drug overdose deaths. METHODS: We linked vital statistics, prescription drug monitoring program, and toxicology data for self-inflicted and unintentional drug overdose deaths among North Carolina residents in 2012. RESULTS: Most self-inflicted (79.2%) and unintentional (75.6%) drug overdose decedents had a prescription for a controlled substance within one year of death. Toxicology results revealed that antidepressants contributed to a significantly higher percent of self-inflicted compared to unintentional drug overdose deaths (45.0% vs. 8.1%). Among deaths in which commonly prescribed opioids (oxycodone, hydrocodone) or benzodiazepines (alprazolam, clonazepam) contributed to death, a significantly higher percent of self-inflicted drug overdose decedents had a prescription for the substance within 30days of death compared to unintentional drug overdose decedents. CONCLUSIONS: The results highlight the use of prescription opioids, benzodiazepines, and antidepressants among self-inflicted drug overdose decedents. Importantly, the results indicate that self-inflicted drug overdose decedents were more likely than unintentional drug overdose decedents to have potential contact with the health care system in the weeks preceding death, offering an opportunity for professionals to identify and intervene on risk factors or signs of distress and potential for self-harm. PMID- 29032025 TI - Characteristics of drinking events associated with heavy episodic drinking among adolescents in the United States. AB - PURPOSE: To examine associations between characteristics of drinking events and the quantity of alcohol consumed by adolescents in the United States. METHODS: Analyses relied on 2011-2015 data from the National Survey on Drug Use and Health (NSDUH). The study sample included 8110 adolescents, ages 12-17years old, who drank alcohol in the past 30days. A logistic regression model, weighted for national estimation, was constructed to examine factors associated with heavy episodic drinking (HED; 5+ drinks for males, 4+ drinks for females) during the underage drinker's most recent drinking event. These models were adjusted for study year and individual characteristics, including past year drinking frequency, age of drinking onset, and demographic variables. RESULTS: Buying alcohol off-premise or from another person and being given alcohol from non parent social sources were associated with greater odds of HED compared to being given alcohol by one of their parents. Drinking alcohol at someone else's house or multiple locations were associated with heavier alcohol consumption compared to drinking at one's own home. Being older and an earlier age of alcohol onset were associated with greater odds of HED. CONCLUSIONS: This study identifies contextual factors associated with HED by adolescents. Compared to global association studies, the findings from these event-specific analyses provide strong evidence of the environmental conditions that contribute to HED in American adolescents. Although no level of alcohol consumption is safe for adolescents, knowledge of event-level risk factors can inform targeted interventions. PMID- 29032026 TI - 4-Hydroxy-2-pyridones: Discovery and evaluation of a novel class of antibacterial agents targeting DNA synthesis. AB - The continued emergence of bacteria resistant to current standard of care antibiotics presents a rapidly growing threat to public health. New chemical entities (NCEs) to treat these serious infections are desperately needed. Herein we report the discovery, synthesis, SAR and in vivo efficacy of a novel series of 4-hydroxy-2-pyridones exhibiting activity against Gram-negative pathogens. Compound 1c, derived from the N-debenzylation of 1b, preferentially inhibits bacterial DNA synthesis as determined by standard macromolecular synthesis assays. The structural features of the 4-hydroxy-2-pyridone scaffold required for antibacterial activity were explored and compound 6q, identified through further optimization of the series, had an MIC90 value of 8 MUg/mL against a panel of highly resistant strains of E. coli. In a murine septicemia model, compound 6q exhibited a PD50 of 8 mg/kg in mice infected with a lethal dose of E. coli. This novel series of 4-hydroxy-2-pyridones serves as an excellent starting point for the identification of NCEs treating Gram-negative infections. PMID- 29032028 TI - Comments on "Radiological protection for pregnant women at a large academic medical Cancer Center". PMID- 29032029 TI - CXCR5+CD8+ T cells could induce the death of tumor cells in HBV-related hepatocellular carcinoma. AB - The follicular CXCR5+CD8+ T cells have recently emerged as a critical cell type in mediating peripheral tolerance as well as antiviral immune responses during chronic infections. In this study, we investigated the function of CXCR5+CD8+ T cells in HBV-related hepatocellular carcinoma patients. Compared to CXCR5-CD8+ T cells, CXCR5+CD8+ T cells presented elevated PD-1 expression but reduced Tim-3 and CTLA-4 expression. Upon anti-CD3/CD28 stimulation, CXCR5+CD8+ T cells demonstrated higher proliferation potency than CXCR5-CD8+ T cells, especially after PD-1 blockade. CXCR5+CD8+ T cells also demonstrated significantly higher granzyme B synthesis and release, as well as higher level of degranulation. Tumor cells were more readily eliminated by CXCR5+CD8+ T cells than by CXCR5-CD8+ T cells. Interestingly, we found that B cells were more resistant to CXCR5+CD8+ T cell-mediated killing than tumor cells, possibly through IL-10-mediated protection. In addition, the CXCR5+CD8+ T cell-mediated cytotoxic effects on tumor cells could be significantly enhanced by PD-L1 blockade. Together, we presented that in patients with in HBV-related hepatocellular carcinoma, CXCR5+CD8+ T cells could mediate tumor cell death more potently than the CXCR5 CD8+ T cells in vitro while the autologous B cells were protected. PMID- 29032027 TI - Peripheral Neuropathy and Hindlimb Paralysis in a Mouse Model of Adipocyte Specific Knockout of Lkb1. AB - Brown adipose tissues (BAT) burn lipids to generate heat through uncoupled respiration, thus representing a powerful target to counteract lipid accumulation and obesity. The tumor suppressor liver kinase b1 (Lkb1) is a key regulator of cellular energy metabolism; and adipocyte-specific knockout of Lkb1 (Ad-Lkb1 KO) leads to the expansion of BAT, improvements in systemic metabolism and resistance to obesity in young mice. Here we report the unexpected finding that the Ad-Lkb1 KO mice develop hindlimb paralysis at mid-age. Gene expression analyses indicate that Lkb1 KO upregulates the expression of inflammatory cytokines in interscapular BAT and epineurial brown adipocytes surrounding the sciatic nerve. This is followed by peripheral neuropathy characterized by infiltration of macrophages into the sciatic nerve, axon degeneration, reduced nerve conductance, and hindlimb paralysis. Mechanistically, Lkb1 KO reduces AMPK phosphorylation and amplifies mammalian target-of-rapamycin (mTOR)-dependent inflammatory signaling specifically in BAT but not WAT. Importantly, pharmacological or genetic inhibition of mTOR ameliorates inflammation and prevents paralysis. These results demonstrate that BAT inflammation is linked to peripheral neuropathy. PMID- 29032030 TI - Design, synthesis and biological evaluation of N-(4-alkoxy-3 cyanophenyl)isonicotinamide/nicotinamide derivatives as novel xanthine oxidase inhibitors. AB - A series of N-(4-alkoxy-3-cyanophenyl)isonicotinamide/nicotinamide derivatives was designed, synthesized and evaluated for inhibitory potency in vitro against xanthine oxidase. The isonicotinamide series was considerably more effective than the nicotinamide series. SARs analysis revealed that the isonicotinoyl moiety played a significant role on the inhibition and that a benzyl ether tail (e.g., ortho-cyanobenzoxy) linked to the benzonitrile moiety benefits the inhibitory potency. Among these compounds, 10q (IC50 = 0.3 MUM) was identified to be the most potent in this work and was observed to be 28.3-fold more potent than allopurinol but 20-fold less potent than topiroxostat. The Lineweaver-Burk plot showed that 10q acted as a mixed-type inhibitor on xanthine oxidase. Molecular modeling provided a reasonable explanation for the SARs observed in this study. PMID- 29032031 TI - Discovery of novel anti-angiogenesis agents. Part 8: Diaryl thiourea bearing 1H indazole-3-amine as multi-target RTKs inhibitors. AB - VEGFR-2, TIE-2, and EphB4 are essential for both angiogenesis and tumorigenesis. Herein, we designed and prepared three classes of multi-target inhibitors based on the extensive sequence homology along the kinase domain of angiogenic RTKs. Biological evaluation indicated that these multi-target inhibitors exhibited considerable potential as novel anti-angiogeneic and anticancer agents. Among them, a diaryl thiourea bearing 1H-indazole-3-amine (16a) displayed the most potent RTK inhibition and excellent selectivity. It also showed inhibition on viability of human umbilical vein endothelial cells and anti-proliferation against a broad spectrum of cancer cells. Therefore, 1H-indazole-3-amine could serve as a promising hinge binding group for multi-target inhibitors of VEGFR-2, Tie-2, and EphB4. PMID- 29032032 TI - Enzyme inhibitory activities an insight into the structure-Activity relationship of biscoumarin derivatives. AB - Biscoumarin derivatives, a dimeric form of coumarin, are well known derivatives of coumarin, occurred in the bioactive metabolites of marine and terrestrial organisms. On account of pharmacological and biological applications, biscoumarins have long been the subject of innumerable enzyme inhibition studies. In this review the pros and cons of enzyme inhibition studies of biscoumarins as urease inhibitors, aromatase inhibitors, NPPs, alpha-glucosidase inhibitors, alpha-amylase inhibitors, HIV-1 integrase inhibition, steroid sulfatase inhibitors and c-Met inhibitors are discussed in a systematic way. Moreover, the review discusses the structure activity relationship of biscoumarin scaffold with enzyme inhibitory potency which would unleash new avenues for further development. The purpose of the current review is to disclose the value of biscoumarins as potent and efficient enzyme inhibitor. This review provides a guideline to elaborate the diversity of biscoumarin inhibitors by exploring the effects of electronic groups linked with biscoumarin nucleus. PMID- 29032033 TI - Effect of mofezolac-galactose distance in conjugates targeting cyclooxygenase (COX)-1 and CNS GLUT-1 carrier. AB - Neuroinflammation is the earliest stage of several neurological and neurodegenerative diseases. In the case of neurodegenerative disorders, it takes place about 15-20 years before the appearance of specific neurodegenerative clinical symptoms. Constitutive microglial COX-1 is one of the pro-inflammatory players of the neuroinflammation. Novel compounds 3, 14 and 15 (Galmof0, Galmof5 and Galmof11, respectively) were projected, and their synthetic methodologies developed, by linking by an ester bond, directly or through a C5 or C11 unit linker the highly selective COX-1 inhibitor mofezolac (COXs selectivity index > 6000) to galactose in order to obtain substances capable to cross blood-brain barrier (BBB) and control the CNS inflammatory response. 3, 14 and 15 (Galmofs) were prepared in good to fair yields. Galmof0 (3) was found to be a selective COX 1 inhibitor (COX-1 IC50 = 0.27 MUM and COX-2 IC50 = 3.1 MUM, selectivity index = 11.5), chemically and metabolically stable, and capable to cross Caco-2 cell monolayer, resembling BBB, probing that its transport is GLUT-1-mediated. Furthermore, Galmof0 (3) powerfully inhibits PGE2 release higher than mofezolac (1) in LPS-stimulated mouse BV2 microglial cell line, a worldwide recognized neuroinflammation model. In addition, Fingerprints for Ligands and Proteins (FLAP) was used to explain the different binding interactions of Galmofs with the COX-1 active site. PMID- 29032034 TI - Therapeutic investigations of novel indoxyl-based indolines: A drug target validation and Structure-Activity Relationship of angiotensin-converting enzyme inhibitors with cardiovascular regulation and thrombolytic potential. AB - A family of 12 members of Naphthalene-2-ol-indolin-2-one-thiocarbamides (5a-l) with pharmacological potentials of cardiovascular modulator were efficiently synthesized and evaluated. These compounds show inhibitory activity on angiotensin-converting enzyme (ACE), which is a principal constituent of the renin-angiotensin system and causative source for hypertension (HTN) (elevated blood pressure) and congestive heart failure (CHF), a parameter that was tested in this report. Prior to this, to get more insight into the binding mode and inhibition of human ACE C-domain (PDB ID: 2XY9) and N-domain (PDB ID: 3NXQ) compounds 5a-l was docked into the active site of them. The established inhibitory constant (Ki) (range 40-500 nM) and least binding affinities (-18.52 to -30.57 kcal/mol) indicated the therapeutic selectivity of compounds 5a-l towards ACE C-domain inhibition over ACE N-domain. The cytotoxicity effect of most potent compounds among 5a-l were tested in normal breast cells and MCF-7 cell lines. Simultaneously, H2O2 induced antioxidant and DNA damage assessment was executed. Eventually, a thrombolytic activity followed by a human red blood cell (HRBC) membrane stabilization study to ensure the relaxation of blood and stabilization of RBC was executed. Structure-Activity Relationship (SAR) study discloses the potential of 5c, 5h, and 5k as cardiovascular protective therapeutic agents among 5a-l. PMID- 29032035 TI - Small RNAs: Big Impact on Plant Development. AB - While the role of proteins in determining cell identity has been extensively studied, the contribution of small noncoding RNA molecules such as miRNAs and siRNAs has been also recognised. miRNAs bind to complementary sites in target mRNA molecules to trigger the degradation or translational inhibition of those targets. Recent studies have revealed that miRNAs play pivotal roles in key developmental processes such as patterning of the embryo, meristem, leaf, and flower. Furthermore, these miRNAs have been recruited throughout plant evolution into pathways that create diverse plant organ forms and shapes. This review focuses on the roles of miRNAs in establishing plant cell identity during key plant development processes and creating morphological diversity during plant evolution. PMID- 29032036 TI - Relationship Between the Subcostal and Right Lateral Ultrasound Views of Inferior Vena Cava Collapse: Implications for Clinical Use of Ultrasonography. AB - BACKGROUND: The collapsibility index of the inferior vena cava is traditionally visualized from the subcostal region in the sagittal plane, referred to here as cIVCSS. Alternatively, the collapsibility index of the inferior vena cava can be visualized from the right midaxillary line in the coronal plane, referred to here as cIVCRC. It is unclear whether values of cIVCRC are comparable with values of cIVCSS because the inferior vena cava collapses asymmetrically into an elliptical form, quantified as the flat ratio of the inferior vena cava (F-IVC). This study aimed (1) to establish if cIVCRC is concordant or discordant to cIVCSS, and (2) to describe how this concordance or discordance is related to F-IVC. METHODS: This single-center cross-sectional study enrolled 110 spontaneously breathing patients. Values of cIVCRC were compared with cIVCSS. Performance of cIVCRC >= 42% in predicting fluid responsiveness, defined as cIVCSS >= 42%, was assessed. F IVC was also correlated to the difference between cIVCSS and cIVCRC. RESULTS: cIVCRC >= 42% was 61.5% sensitive (95% CI, 31.58%-86.14%) and 67.1% specific (95% CI, 55.81%-77.06%) for predicting cIVCSS >= 42%. cIVCRC underestimated cIVCSS. The degree of discordance between cIVCRC and cIVCSS was proportional to the value of F-IVC. CONCLUSIONS: cIVCRC and cIVCSS measures are discordant, where cIVCRC underestimates cIVCSS. The degree of discordance is directly proportional to the value of F-IVC. Therefore, we recommend that cIVCRC >= 42% be used to rule in, but not to rule out, fluid responsivity. Wherever possible, F-IVC should be assessed to understand the clinical relevance of cIVCRC. PMID- 29032037 TI - Ecocultural range-expansion scenarios for the replacement or assimilation of Neanderthals by modern humans. AB - Recent archaeological records no longer support a simple dichotomous characterization of the cultures/behaviors of Neanderthals and modern humans, but indicate much cultural/behavioral variability over time and space. Thus, in modeling the replacement or assimilation of Neanderthals by modern humans, it is of interest to consider cultural dynamics and their relation to demographic change. The ecocultural framework for the competition between hominid species allows their carrying capacities to depend on some measure of the levels of culture they possess. In the present study both population densities and the densities of skilled individuals in Neanderthals and modern humans are spatially distributed and subject to change by spatial diffusion, ecological competition, and cultural transmission within each species. We analyze the resulting range expansions in terms of the demographic, ecological and cultural parameters that determine how the carrying capacities relate to the local densities of skilled individuals in each species. Of special interest is the case of cognitive and intrinsic-demographic equivalence of the two species. The range expansion dynamics may consist of multiple wave fronts of different speeds, each of which originates from a traveling wave solution. Properties of these traveling wave solutions are mathematically derived. Depending on the parameters, these traveling waves can result in replacement of Neanderthals by modern humans, or assimilation of the former by the latter. In both the replacement and assimilation scenarios, the first wave of intrusive modern humans is characterized by a low population density and a low density of skilled individuals, with implications for archaeological visibility. The first invasion is due to weak interspecific competition. A second wave of invasion may be induced by cultural differences between moderns and Neanderthals. Spatially and temporally extended coexistence of the two species, which would have facilitated the transfer of genes from Neanderthal into modern humans and vice versa, is observed in the traveling waves, except when niche overlap between the two species is extremely high. Archaeological findings on the spatial and temporal distributions of the Initial Upper Palaeolithic and the Early Upper Palaeolithic and of the coexistence of Neanderthals and modern humans are discussed. PMID- 29032038 TI - A role of cathepsin L gene in innate immune response of crayfish (Procambarus clarkii). AB - Cathepsin L is one of the crucial enzyme superfamilies and involved in the immune responses. In the present study, cathepsin L gene from the red crayfish Procambarus clarkii, named PcCTSL, was cloned and characterized. The cDNA fragment of PcCTSL was 1026 bp in length, which encoded a putative protein of 341 amino acid residues with a molecular weight of 37.884 kDa. The theoretical isoelectric point was 5.218. The prepro-cathepsin L was comprised of a typical signal peptide (Met1-Ala18), a prodomain proregion peptide (Trp29-Phe89) and a mature peptide (Leu124-Leu340). Homology analysis indicated that PcCTSL exhibited 53.2%-87.1% identity to other selected species. The recombinant protein of PcCTSL was successfully expressed in Escherichia coli and rabbit anti-PcCTSL polyclonal antibodies were prepared. Real-time quantitative reverse transcription-PCR (qPCR) analysis revealed that the PcCTSL was expressed in all examined tissues, while the greatest mRNA level was observed in hepatopancreas. The expression of PcCTSL mRNA was clearly up regulated in hepatopancreas after challenge by lipopolysaccharide (LPS) and polyriboinosinic polyribocytidylic acid (Poly I:C). RNA interference of PcCTSL affected the gene expression of members of the Toll pathway. Our results suggest that the PcCTSL may play an important role to defend P. clarkii against the pathogens infection. PMID- 29032039 TI - The efficacy of Poly-beta-Hydroxy Butyrate (PHB)/biosurfactant derived from Staphylococcus hominis against White Spot Syndrome Virus (WSSV) in Penaeus monodon. AB - White Spot Syndrome Virus (WSSV) is one of the most important causative agents of Penaeid shrimps diseases that incur heavy losses to the shrimp aquaculture. It has severe impact on the sustainability and the production of Penaeus monodon. Hence, the present study focussed on the investigation of Poly-beta hydroxybutyrate/biosurfactant as immunostimulants against WSSV infected shrimps. Infection of WSSV was periodically checked in all the experimental shrimps using PCR diagnostic kit. After ensuring all shrimps were free of viral infection, experiments were carried out to analyze the nonspecific immune responses (prophenol oxidase, nitro blue tetrazolium reduction assay and total haemocyte count) both in control and experimental group. Further, gills and muscles of Penaeus monodon were subjected to proteome analysis after treated it with PHB/biosurfactant independently in the concentration of 2% and 5% each. Increase in the level of haemocytes was observed in both PHB (26 +/- 2 * 104 cells)/biosurfactant (28 +/- 2 * 104 cells) treated shrimps, when compared with control (17 +/- 2 * 104 cells). proPhenolOxidase (proPO) activity was also enhanced in treated groups compared to WSSV infected shrimps. Less production of superoxide anion was observed in control and treated groups. Differences in the protein expression was analyzed in muscle tissue of control, WSSV infected and PHB/biosurfactant treated shrimps. Our finding suggested that partial substitution of feed with 2% PHB and biosurfactant showed increased rate on the survival of WSSV infected P. monodon which might be due to either the over expression/down regulation of proteins that play a vital role in enhancing the immune system/the progression of the disease respectively. PMID- 29032040 TI - Effects of dietary ginkgo biloba leaf extract on growth performance, plasma biochemical parameters, fish composition, immune responses, liver histology, and immune and apoptosis-related genes expression of hybrid grouper (Epinephelus lanceolatus? * Epinephelus fuscoguttatus?) fed high lipid diets. AB - For thousands of years, leaves from the Ginkgo biloba tree have been a common treatment in Chinese medicine. The present study was conducted to investigate the effects of dietary ginkgo biloba leaf extract (GBE) supplementation on growth performance, plasma biochemical parameters, fish composition, immune responses, liver histology, and immune and apoptosis-related genes expression of hybrid grouper (Epinephelus lanceolatus? * Epinephelus fuscoguttatus?) fed high lipid diets. A basal diet supplemented with GBE at 0, 0.50, 1.00, 2.00, 4.00 and 10.00 g kg-1 was fed to hybrid grouper for 8 weeks. The study indicated that dietary GBE did not improve growth performance and feed utilization but it reduced intraperitoneal fat rate. There were no significant differences in condition factor, viscerosomatic index, hepatosomatic index, spleen index, relative gut length, food intake, protein deposit rate and survival among all groups (P > 0.05). Dietary supplementation with 0.50-4.00 g GBE kg-1 diets effectively increased plasma HDL content and decreased plasma GLU, LDL and TG content in fish. Furthermore, dietary GBE had a significant effect on moisture, crude protein and lipid in the liver, and protein in the whole body of fish (P < 0.05). Dietary supplementation with 0.50-1.00 g GBE kg-1 diets effectively decreased occurrence rates of the hepatocyte swelling, hepatocyte vacuolization, and nuclei shifting to the cellular periphery cytoplasmic vacuolization, meanwhile hepatic antioxidant enzymes (SOD, CAT and T-AOC) activities significantly increased whereas MDA content significantly decreased in fish fed diets supplemented with GBE (P < 0.05). Moreover, dietary GBE up-regulated the expression of antioxidant genes (CAT, GPx and GR), immune-related genes (MHC2 and TLR3) and anti inflammatory cytokines (IL-10 and TGF-beta1), while dietary supplementation with 0.50-4.00 g GBE kg-1 diets down-regulated apoptosis-related genes (p53, caspase 9, caspase-8 and caspase-3) expression in the head kidney of hybrid grouper. These results indicated that hybrid grouper fed diets supplemented with GBE did not improve growth performance and feed utilization but it had hypolipidemic effects, improved hepatic antioxidant status, maintained normal liver histology and preserved liver function, increased immune-related genes expression and decreased apoptosis-related genes expression in the head kidney of hybrid grouper. PMID- 29032041 TI - Transformative therapies for rare CFTR missense alleles. AB - With over 1900 variants reported in the cystic fibrosis transmembrane conductance regulator (CFTR), enhanced understanding of cystic fibrosis (CF) genotype phenotype correlation represents an important and expanding area of research. The potentiator Ivacaftor has proven an effective treatment for a subset of individuals carrying missense variants, particularly those that impact CFTR gating. Therapeutic efforts have recently focused on correcting the basic defect resulting from the common F508del variant, as well as many less frequent missense alleles. Modest enhancement of F508del-CFTR function has been achieved by combining Ivacaftor with Lumacaftor, a compound that aids maturational processing of misfolded CFTR. Continued development of in silico and in vitro models will facilitate CFTR variant characterization and drug testing, thereby elucidating heterogeneity in the molecular pathogenesis, phenotype, and modulator responsiveness of CF. PMID- 29032042 TI - A reliable and stable method for determination of brigatinib in rat plasma by UPLC-MS/MS: Application to a pharmacokinetic study. AB - Brigatinib is the second-generation anaplastic lymphoma kinase - inhibitor in non small cell lung cancer and it can overcome the crizotinib-resistance. Chromatographic separation was carried out on an Acquity Ultra Performance Liquid Chromatography (UPLC) unit with a BEH C18 column (2.1mm*50mm, 1.7MUm). The mobile phase was composed of acetonitrile and 0.1% formic acid in water. No endogenous interfering compounds was discovered at retention time of brigatinib (0.56min) and imatinib (IS, 1.41min). MS/MS detection was performed in positive mode. And the MRM transitions were m/z 584.09->484.08 and m/z 494.3->394.2 for brigatinib and IS, respectively. This method was assessed to be stable, specificity, and no matrix effect in three concentrations (0.004, 0.4, 4MUg/mL). The intra-day and inter-day precisions were less than 11.09% and 6.43%. And intra-day and inter-day accuracies were ranged from -3.88% to 5.44%. The recovery of brigatinib was from 85.26% to 96.05%. Additionally, the method had a good linearity in the range of 0.002-5MUg/mL. The presented method was effectively implemented to determine the concentration of brigatinib in rat plasma. PMID- 29032043 TI - Fast and sensitive HPLC-MS/MS method for direct quantification of intracellular deoxyribonucleoside triphosphates from tissue and cells. AB - Deoxyribonucleoside triphosphates (dNTPs) are used in DNA synthesis and repair. Even slight imbalances can have adverse biological effects. This study validates a fast and sensitive HPLC-MS/MS method for direct quantification of intracellular dNTPs from tissue. Equal volumes of methanol and water were used for nucleotide extraction from mouse heart and gastrocnemius muscle and isolated cardiomyocytes followed by centrifugation to remove particulates. The resulting supernatant was analyzed on a porous graphitic carbon chromatography column using an elution gradient of ammonium acetate in water and ammonium hydroxide in acetonitrile with a run time of just 10min. Calibration curves of all dNTPs ranged from 62.5 to 2500fmol injections and demonstrated excellent linearity (r2>0.99). The within day and between day precision, as measured by the coefficient of variation (CV (%)), was <25% for all points, including the lower limit of quantification (LLOQ). The inter-day accuracy was within 12% of expected concentration for the LLOQ and within 7% for all other points on the calibration curve. The intra-day accuracy was within 22% for the LLOQ and within 11% for all points on the curve. Compared to existing methods, this study presents a faster and more sensitive method for dNTP quantification. PMID- 29032044 TI - Multiplex quantitative analysis of eicosanoid mediators in human plasma and serum: Possible introduction into clinical testing. AB - Eicosanoid mediators play important roles in maintaining the physiological and pathophysiological homeostasis in the body. Their measurements, however, are rarely performed in clinical practice. In the present study, we analyzed 30 varieties of eicosanoid mediators that were detectable in human plasma and serum collected from healthy donors, using liquid chromatography-tandem mass spectrometry from the viewpoint of the clinical application of the multiplex quantitation of eicosanoid mediators. Wider variety of eicosanoid mediators were detected in serum (27 out of 30) than in plasma (14 out of 30), since the serum was thought to contain lipid mediators released from activated platelets. Larger inter-individual variations were observed in the plasma and serum eicosanoid levels. On the other hand, the concentrations of eicosanoids were not affected by the platelet count but were affected by the concentration of arachidonic acid (AA) within the reference interval (17.4-40.5*1010/L). When serum samples from patients with hematological disorders were analyzed, the concentrations of AA were positively correlated with the platelet count. When the patients underwent ASA therapy, a marked decrease in the concentrations of thromboxane B2 (TXB2) and 12-hydroxyl-heptadecatrienoic acid (12-HHT) was observed. Considering the availability of serum samples in clinical settings, the serum analysis of eicosanoids may be clinically useful. PMID- 29032045 TI - A sensitive biosensor using double-layer capillary based immunomagnetic separation and invertase-nanocluster based signal amplification for rapid detection of foodborne pathogen. AB - Combining double-layer capillary based high gradient immunomagnetic separation, invertase-nanocluster based signal amplification and glucose meter based signal detection, a novel biosensor was developed for sensitive and rapid detection of E. coli O157:H7 in this study. The streptavidin modified magnetic nanobeads (MNBs) were conjugated with the biotinylated polyclonal antibodies against E. coli O157:H7 to form the immune MNBs, which were captured by the high gradient magnetic field in the double-layer capillary to specifically separate and efficiently concentrate the target bacteria. Calcium chloride was used with the monoclonal antibodies against E. coli O157:H7 and the invertase to form the immune invertase-nanoclusters (INCs), which were used to react with the target bacteria to form the MNB-bacteria-INC complexes in the capillary. The sucrose was then injected into the capillary and catalyzed by the invertase on the complexes into the glucose, which was detected using the glucose meter to obtain the concentration of the glucose for final determination of the E. coli O157:H7 cells in the sample. A linear relationship between the readout of the glucose meter and the concentration of the E. coli O157:H7 cells (from 102 to 107 CFU/mL) was found and the lower detection limit of this biosensor was 79 CFU/mL. This biosensor might be extended for the detection of other foodborne pathogens by changing the antibodies and has shown the potential for the detection of foodborne pathogens in a large volume of sample to further increase the sensitivity. PMID- 29032047 TI - Reactivation of peroxidase activity in human saliva samples by polyphenols. AB - OBJECTIVES: The enzyme lactoperoxidase (LPO), which is released into several body fluids like saliva, is an essential part to maintain the oral bacterial homeostasis by catalysing the oxidation of thiocyanate (SCN-) to hypo-thiocyanite (-OSCN). The formation of unreactive redox intermediates (like Compound II) leads to a decreased pseudo-halogenating enzyme activity, which is associated with a higher risk for oral infections. According to former studies with bovine LPO selected flavonoids were tested in respect to their potential to reactivate the enzymatic activity in a more physiological, human salivary system. DESIGN: Saliva samples from healthy donors were collected and characterized by using several gel staining methods and immunoblotting. Afterwards kinetic measurements were performed by applying the TNB-assay to evaluate the pseudo-halogenating salivary peroxidase (SAPX) activity. The measurements were performed in the presence of excess H2O2 to simulate pro-inflammatory conditions. Moreover selected flavonoids or an ethanolic extract of Tormentillae rhizoma were applied to test their regenerating effect on the LPO-derived -OSCN production. RESULTS: Despite the complex protein composition of the collected saliva samples, an SAPX-derived pseudo-halogenating activity could be identified. The -OSCN regenerating effects of the tested polyphenols were completely comparable to previous in vitro experiments with bovine LPO. Thus, we could show that phenolic substances are suitable to regenerate the peroxidase activity in human saliva samples after H2O2 induced inactivation. CONCLUSION: The studies provide new insights into the effect of pharmaceutical relevant polyphenols on salivary peroxidase activity and thus, suggest this enzyme as a new target for the prevention and therapy of oral inflammatory diseases. PMID- 29032046 TI - Past, present, and future of genetic research in borderline personality disorder. AB - Borderline Personality Disorder (BPD) is a major mental illness with a lifetime prevalence of approximately 1-3%, characterized by a persistent pattern of instability in relationships, mood, impulse regulation, and sense of self. This results in impulsive self-damaging behavior, high suicide rates, and severe functional impairment. BPD has a complex, multifactorial etiology, resulting from an interaction among genetic and environmental substrates, and has moderate to high heritability based on twin and family studies. However, our understanding of the genetic architecture of BPD is very limited. This is a critical obstacle since genetics can pave the way for identifying new treatment targets and developing preventive and disease-modifying pharmacological treatments which are currently lacking. We review genetic studies in BPD, with a focus on limitations and challenges and future directions. Genetic research in BPD is still in its very early stages compared to other major psychiatric disorders. Most early genetic studies in BPD were non-replicated association studies in small samples, focused on single candidate genes. More recently, there has been one genome-wide linkage study and a genome-wide association study (GWAS) of subclinical BPD traits and a first GWAS in a relatively modest sample of patients fulfilling full diagnostic criteria for the disorder. Although there are adequate animal models for some of the core dimensions of BPD, there is a lack of translational research including data from animal models in BPD. Research in more pioneering fields, such as imaging genetics, deep sequencing and epigenetics, holds promise for elucidating the pathophysiology of BPD and identifying new treatment targets. PMID- 29032048 TI - Cytokine profile changes in gingival crevicular fluid after placement different brackets types. AB - OBJECTIVE: The aim of this study was to examine the relationship between bracket design and ratio of five proinflammatory cytokine, in gingival crevicular fluid (GCF), and bacterial adhesion without tooth movement influence. DESIGN: The sample was comprised of 20 participants, aged 11 to 15 years old (mean age: 13.3 years+/-1.03). A conventional GeminiTM metallic bracket and two self-ligating brackets, In-Ovation(r)R and SmartClipTM, were bonded to the maxillary incisors and canines. GCF was collected using a standard filter paper strip before and 60days after bonding. The cytokine levels (IL-12, IL-1alpha, IL-1beta, IL-6 and TNF-alpha) were performed by the LUMINEX assay. The levels of the red and orange bacterial complexes were analyzed by the Checkerboard DNA-DNA hybridization. The data of cytokine and bacterial complexes were carried out using the non parametric tests at 5% of significance level. RESULTS: Increased cytokine levels were observed. However, only the SmartClipTM group showed a significantly increased level of TNF-alpha (p=0.046). The SmartClipTM brackets group presented higher levels of red complex bacteria. CONCLUSIONS: The bracket design affected cytokine levels and bacterial adhesion since it was observed that the proinflammatory cytokines released in GCF to the SmartClipTM group showed an increase in the TNF-alpha levels associated with higher bacterial levels, which possibly represents greater inflammatory potential. Thereby, the bracket design should be considered in patients with risk of periodontal disease and root resorption. PMID- 29032049 TI - A periodic two-patch SIS model with time delay and transport-related infection. AB - In this paper, we propose a periodic SIS epidemic model with time delay and transport-related infection in a patchy environment. The basic reproduction number R0 is derived which determines the global dynamics of the model system: if R0 < 1, the disease-free periodic state is globally attractive while there exists at least one positive periodic state and the disease persists if R0 > 1. Numerical simulations are performed to confirm the analytical results and to explore the dependence of R0 on the transport-related infection parameters and the amplitude of fluctuations. PMID- 29032050 TI - Positive predictive value estimates for cell-free noninvasive prenatal screening from data of a large referral genetic diagnostic laboratory. AB - BACKGROUND: Since its debut in 2011, cell-free fetal DNA screening has undergone rapid expansion with respect to both utilization and coverage. However, conclusive data regarding the clinical validity and utility of this screening tool, both for the originally included common autosomal and sex-chromosomal aneuploidies as well as the more recently added chromosomal microdeletion syndromes, have lagged behind. Thus, there is a continued need to educate clinicians and patients about the current benefits and limitations of this screening tool to inform pre- and posttest counseling, pre/perinatal decision making, and medical risk assessment/management. OBJECTIVE: The objective of this study was to determine the positive predictive value and false-positive rates for different chromosomal abnormalities identified by cell-free fetal DNA screening using a large data set of diagnostic testing results on invasive samples submitted to the laboratory for confirmatory studies. STUDY DESIGN: We tested 712 patient samples sent to our laboratory to confirm a cell-free fetal DNA screening result, indicating high risk for a chromosome abnormality. We compiled data from all cases in which the indication for confirmatory testing was a positive cell free fetal DNA screen, including the common trisomies, sex chromosomal aneuploidies, microdeletion syndromes, and other large genome-wide copy number abnormalities. Testing modalities included fluorescence in situ hybridization, G banded karyotype, and/or chromosomal microarray analysis performed on chorionic villus samples, amniotic fluid, or postnatally obtained blood samples. Positive predictive values and false-positive rates were calculated from tabulated data. RESULTS: The positive predictive values for trisomy 13, 18, and 21 were consistent with previous reports at 45%, 76%, and 84%, respectively. For the microdeletion syndrome regions, positive predictive values ranged from 0% for detection of Cri-du-Chat syndrome and Prader-Willi/Angelman syndrome to 14% for 1p36 deletion syndrome and 21% for 22q11.2 deletion syndrome. Detection of sex chromosomal aneuploidies had positive predictive values of 26% for monosomy X, 50% for 47,XXX, and 86% for 47,XXY. CONCLUSION: The positive predictive values for detection of common autosomal and sex chromosomal aneuploidies by cell-free fetal DNA screening were comparable with other studies. Identification of microdeletions was associated with lower positive predictive values and higher false-positive rates, likely because of the low prevalence of the individual targeted microdeletion syndromes in the general population. Although the obtained positive predictive values compare favorably with those seen in traditional screening approaches for common aneuploidies, they highlight the importance of educating clinicians and patients on the limitations of cell-free fetal DNA screening tests. Improvement of the cell-free fetal DNA screening technology and continued monitoring of its performance after introduction into clinical practice will be important to fully establish its clinical utility. Nonetheless, our data provide valuable information that may aid result interpretation, patient counseling, and clinical decision making/management. PMID- 29032051 TI - Bowel endometriosis: diagnosis and management. AB - The most common location of extragenital endometriosis is the bowel. Medical treatment may not provide long-term improvement in patients who are symptomatic, and consequently most of these patients may require surgical intervention. Over the past century, surgeons have continued to debate the optimal surgical approach to treating bowel endometriosis, weighing the risks against the benefits. In this expert review we will describe how the recommended surgical approach depends largely on the location of disease, in addition to size and depth of the lesion. For lesions approximately 5-8 cm from the anal verge, we encourage conservative surgical management over resection to decrease the risk of short- and long-term complications. PMID- 29032052 TI - DFT, QTAIM, and NBO studies on the trimeric interactions in the protrusion domain of a piscine betanodavirus. AB - Crystal structure of the protrusion domain (P-domain) of the grouper nervous necrosis virus (GNNV) shows the presence of three-fold trimeric protrusions with two asymmetrical calcium cations along the non-crystallographic three-fold axis. The trimeric interaction natures of the interacting residues and the calcium cations with the neighboring residues within the trimeric interface have been studied by the quantum theory of atoms in molecules (QTAIM) and natural bond orbital (NBO) analyses in the framework of the density-functional theory (DFT) approach. The results revealed that residues Leu259, Val274, Trp280, and Gln322 of subunit A, Arg261, Asp275, Ala277, and Gln322 of subunit B, Leu259, Asp260, Arg261, Ala277, Val278, and Leu324 of subunit C are the main residues involved in the trimeric interactions. Charge-dipole, dipole-dipole, and hydrogen bonding interactions make the significant contributions to these trimeric interactions. Among different interacting residues within trimeric interface, residue pair Arg261 B-Leu259C forms the strongest hydrogen bond inside the interface between subunits B and C. It was also found that calcium cations interact with residues Asp273, Val274, and Asp275 of subunits A, B, and C through charge-charge and charge transfer interactions. PMID- 29032053 TI - Effects of combination of change in visceral fat and thigh muscle mass on the development of type 2 diabetes. AB - AIM: We investigated the association between combined changes of visceral fat and thigh muscle over 5 years and incident type 2 diabetes in a prospective study of Japanese Americans. METHODS: We followed 420 nondiabetic Japanese American subjects for 5 years and assessed visceral fat and thigh muscle by computed tomography (CT) at baseline and at 5 years. We categorized study subjects into 4 body composition change groups: visceral fat loss/thigh muscle gain (VF-loss/TM gain), visceral fat loss/thigh muscle loss (VF-loss/TM-loss), visceral fat gain/thigh muscle gain (VF-gain/TM-gain), and visceral fat gain/thigh muscle loss (VF-gain/TM-loss) by combining changes from baseline in CT measured visceral fat and estimated thigh muscle areas. We fit a logistic regression model to examine the association between body composition categories and the development of incident type 2 diabetes at 5 years. RESULTS: Cumulative incidence of type 2 diabetes was 9.8% at 5 years. VF-gain/TM-gain and VF-loss/TM-loss groups had higher risk for incident type 2 diabetes in a model adjusted for age, sex, family history of diabetes, and body mass index compared to VF-loss/TM-gain group as the reference category (OR=6.83 (1.85-25.17), 4.55 (1.06-19.48), respectively). However, the VF-gain/TM-loss group did not show a significant association with the odds of incident diabetes (3.24; 95% CI. 0.78-13.47). CONCLUSIONS: Concordant gain or loss in visceral fat and thigh muscle was related to higher risk of incident type 2 diabetes compared to the reference combination of loss of visceral fat and gain of thigh muscle in Japanese Americans. PMID- 29032054 TI - Role of ethanolic extract of Bacopa monnieri against 1-methyl-4-phenyl-1,2,3,6 tetrahydropyridine (MPTP) induced mice model via inhibition of apoptotic pathways of dopaminergic neurons. AB - Parkinson's disease (PD) is a neurodegenerative disease which causes rigidity, resting tremor and postural instability. The neuroprotective effects of an ethanolic extract of Bacopa monnieri (BM) were evaluated in a Parkinsonian mice model induced by the MPTP. The present study investigates the mechanisms of neuroprotection elicited by BM, an herb traditionally recognized by the Indian system of medicine, Ayurveda. An ethanolic extract of BM was co-treated with the MPTP induced mouse model of PD and was shown to significantly rescue the motor behaviour (Rotarod, Grip Strength and Foot Printing test). Furthermore, on biochemical parameters too BM significantly showed protective effect as Catalase, LPO, Nitrite, SOD, GR, GPx parameters showed marked improvement and levels of Dopamine, DOPAC and HVA were enhanced significantly. There was a significant reduction in tyrosine hydroxylase (TH) immunoreactivity in the substantia nigra (SN) in MPTP treated group, which was considerably restored by the use of BM extract. BM also facilitated neuroprotection by creating an anti-apoptotic environment indicated by reduced apoptotic (Bax and caspase-3) and increased levels of anti-apoptotic (Bcl2) protein expression, respectively. Altogether, the present study suggests that BM treatment provides nigrostriatal dopaminergic neuroprotection against MPTP induced Parkinsonism by the modulation of oxidative stress and apoptotic machinery possibly accounting for the behavioural effects. PMID- 29032055 TI - Microbiological characterisation of Klebsiella pneumoniae isolates causing bloodstream infections from five tertiary hospitals in Beijing, China. AB - OBJECTIVES: Klebsiella pneumoniae is prevalent in China. Little is known about the microbiological characteristics of clinical K. pneumoniae isolates causing bloodstream infections (BSIs). METHODS: BSI-causing K. pneumoniae (BSI-Kpn) were collected from five tertiary-care hospitals in Beijing. Genetic relatedness was analysed by PFGE, antimicrobial susceptibility was determined by agar dilution, and sequence types (STs) were evaluated by MLST. Hypermucoviscosity (HV) phenotype was identified by positive string test. Carbapenemase, capsular serotype and HV-associated genes were detected by PCR. RESULTS: A total of 219 non-duplicate BSI-Kpn were collected from December 2013 to December 2014 and were categorised into 203 types (strains) with unique PFGE patterns. Among 203 BSI Kpn, 105 STs were identified. Overall, ST11 and ST23 were the predominant clones (14 strains each; 6.9%), followed by ST412 (n=13), ST37 (n=9), ST65 (n=7), ST15 (n=6), ST86 (n=6), ST592 (n=5) and ST29 (n=4). There were 74 STs containing only a single strain. Approximately 8.4% (17/203) of the strains exhibited carbapenem resistance, most producing KPC carbapenemase. The majority (75.9%; 154/203) of isolates were associated with non-K1/K2/K5/K20/K54/K57 serotypes. Only 16.3% (33/203) of the strains had K1/K2 serotypes. A total of 66 (32.5%) of the BSI-Kpn strains exhibited a HV phenotype. rmpA was a predominant factor in determining a HV phenotype. CONCLUSIONS: The majority of BSI-Kpn strains exhibited high genetic diversity and low resistance to commonly used antimicrobials. The specific capsular serotype and HV phenotype were not major features of BSI-Kpn strains in China. PMID- 29032056 TI - In silico approaches to RNA aptamer design. AB - RNA aptamers are ribonucleic acids that bind to specific target molecules. An RNA aptamer for a disease-related protein has great potential for development into a new drug. However, huge time and cost investments are required to develop an RNA aptamer into a pharmaceutical. Recently, SELEX combined with high-throughput sequencers (i.e., HT-SELEX) has been widely used to select candidate RNA aptamers that bind to a target protein with high affinity and specificity. After candidate selection, further optimizations such as shortening and modifying candidate sequences are performed. In these steps, in silico approaches are expected to reduce the time and cost associated with aptamer drug development. In this article, we review existing in silico approaches to RNA aptamer development, including a method for ranking the candidates of RNA aptamers from HT-SELEX data, clustering a huge number of aptamer sequences, and finding motifs amidst a set of significant RNA aptamers. It is expected that further studies in addition to these methods will be utilized for in silico RNA aptamer design, permitting a minimal number of experiments to be performed through the utilization of sophisticated computational methods. PMID- 29032057 TI - The Hog1p kinase regulates Aft1p transcription factor to control iron accumulation. AB - Iron acquisition systems have to be tightly regulated to assure a continuous supply of iron, since it is essential for survival, but simultaneously to prevent iron overload that is toxic to the cells. In budding yeast, the low-iron sensing transcription factor Aft1p is a master regulator of the iron regulon. Our previous work revealed that bioactive sphingolipids modulate iron homeostasis as yeast cells lacking the sphingomyelinase Isc1p exhibit an upregulation of the iron regulon. In this study, we show that Isc1p impacts on iron accumulation and localization. Notably, Aft1p is activated in isc1Delta cells due to a decrease in its phosphorylation and an increase in its nuclear levels. Consistently, the expression of a phosphomimetic version of Aft1p-S210/S224 that favours its nuclear export abolished iron accumulation in isc1Delta cells. Notably, the Hog1p kinase, homologue of mammalian p38, interacts with and directly phosphorylates Aft1p at residues S210 and S224. However, Hog1p-Aft1p interaction decreases in isc1Delta cells, which likely contributes to Aft1p dephosphorylation and consequently to Aft1p activation and iron overload in isc1Delta cells. These results suggest that alterations in sphingolipid composition in isc1Delta cells may impact on iron homeostasis by disturbing the regulation of Aft1p by Hog1p. To our knowledge, Hog1p is the first kinase reported to directly regulate Aft1p, impacting on iron homeostasis. PMID- 29032058 TI - Cross state-dependency of learning between arachidonylcyclopropylamide (ACPA) and muscimol in the mouse dorsal hippocampus. AB - The aim of the present study was to examine cross state-dependent learning between ACPA (a selective cannabinoid CB1 receptor agonist) and muscimol (a selective GABAA receptor agonist) in the step-down inhibitory avoidance learning task. The dorsal hippocampal CA1 regions of adult male NMRI mice were bilaterally cannulated, and all drugs were microinjected into the intended sites of injection. Post-training and/or pre-test administration of ACPA (1 and 2ng/mouse) dose-dependently induced amnesia. Pre-test microinjection of the same doses of ACPA reversed the post-training ACPA-induced amnesia. This event has been named ACPA state-dependent learning (SDL). Post-training and/or pre-test microinjection of muscimol (0.05 and 0.1MUg/mouse) dose-dependently induced amnesia. Pre-test administration of the same doses of muscimol reversed the post-training muscimol induced amnesia, suggesting muscimol SDL. The amnesia induced by post-training administration of ACPA was reversed by pre-test administration of muscimol (0.05 and 0.1MUg/mouse). Furthermore, the pre-test microinjection of muscimol (0.025 and 0.05MUg/mouse) with an ineffective dose of ACPA (0.5ng/mouse) significantly restored memory retrieval and induced ACPA SDL. In another series of experiments, the amnesia induced by post-training administration of muscimol was reversed by pre-test administration of ACPA (1 and 2ng/mouse). Moreover, pre-test microinjection of ACPA (0.5 and 1ng/mouse) with an ineffective dose of muscimol (0.025MUg/mouse) significantly restored memory retrieval and induced muscimol SDL. It is important to note that pre-test intra-CA1 injection of a selective GABAA receptor antagonist, bicuculline (0.125 and 0.25MUg/mouse), 5min before the administration of muscimol (0.1MUg/mouse) or ACPA (2ng/mouse) dose-dependently inhibited muscimol- and ACPA-induced SDL, respectively. Pre-test intra-CA1 administration of bicuculline (0.0625, 0.125 and 0.25MUg/mouse) by itself did not affect memory retention. In conclusion, the data strongly revealed a cross SDL among ACPA and muscimol in the dorsal hippocampal CA1 regions. PMID- 29032060 TI - Emerging Therapeutics for the Control of Chronic Graft-versus-Host Disease. PMID- 29032061 TI - Toward Individualizing Conditioning Regimens in Reduced-Intensity Transplantation. PMID- 29032059 TI - Is the adaptive immune response in murine Trypanosoma cruzi infection influenced by zinc supplementation? AB - Chagas disease afflicts 7 to 8 million people worldwide and congenital Chagas' disease usually leads to changes in the maternal environment, culminating in fetal adaptations. Several articles have described the importance of micronutrients on pregnancy, which is sensitive to infections. In Trypanosoma cruzi endemic regions, the Chagas disease is aggravated by the lack of micronutrients in an average diet, to which pregnant women are more susceptible. The aim of this study was to evaluate distinct T cells phenotypes and intracellular cytokines by flow cytometry in pregnant Wistar rats under zinc therapy during experimental Chagas' disease. Twenty female Wistar rats were infected with 1*105 blood trypomastigotes (Y strain) and 30days after infection the animals were mated and grouped: pregnant infected (PI-n=5), pregnant infected/zinc supplied (PIZ-n=5), pregnant control (PC-n=5), control/zinc supplied (PCZ-n=5). Zinc supplementation: 20mg of zinc/Kg/day (gavage) for 18days followed by euthanasia. The immune parameters showed: decreased percentages of CD62LlowCD44high surface marker for infected and treated group (PIZ) when compared to PI (p<0.05). Concerning to T regulatory cells (Treg cells), a significantly lower percentage of splenic Treg cells was found in the infected and treated group (PIZ) as compared to the PI group (p<0.05). The expression of the co-stimulatory molecule CD28+ displayed a significant reduced percentage in TCD8+ for infected and zinc treated group (PIZ) as compared to (PI). The percentages of CD4+/CD11a+ T cells subsets were lower on PIZ as compared to PI. Concerning to CD45RA+ (B lymphocytes) analysis, infected pregnant and treated group (PIZ) showed a significant decrease in CD45RA percentage when compared to (PI) (p<0.05). The intracellular cytokine profiles for TCD4+ and TCD8+ producing IL-4 and IFN-gamma revealed that zinc treated and untreated infected pregnant group (PI and PIZ) displayed increased cytokines concentrations as compared to zinc treated and untreated pregnant controls (PC and PCZ). Our data revealed the involvement of zinc as a signaling molecule in the modulation of the inflammatory process and immune response which occurs during pregnancy of T. cruzi infected rats. Zinc acted in a dual fashion, modulating the host's immune response in a way to protect the organism against the deleterious effects of the infection and an overwhelming pro-inflammatory response during pregnancy. PMID- 29032063 TI - Guidelines About Opportunistic Salpingectomy, IVF, and the Practical Side - In Response. PMID- 29032062 TI - Virus-Specific T Cells: Broadening Applicability. AB - Virus infection remains an appreciable cause of morbidity and mortality after hematopoietic stem cell transplantation (HSCT). Although pharmacotherapy and/or antibody therapy may help prevent or treat viral disease, these drugs are expensive, toxic, and often ineffective due to primary or secondary resistance. Further, effective treatments are limited for many infections (eg, adenovirus, BK virus), which are increasingly detected after alternative donor transplants. These deficiencies in conventional therapeutics have increased interest in an immunotherapeutic approach to viral disorders, leading to adoptive transfer of virus-specific cytotoxic T lymphocytes (VSTs), which can rapidly reconstitute antiviral immunity post-transplantation without causing graft-versus-host disease. This review will explore how the VST field has improved outcomes for many patients with life-threatening viral infections after HSCT, and how to broaden applicability beyond the "patient-specific" products, as well as extending to other viral diseases even outside the context of HSCT. PMID- 29032064 TI - Laparoscopic and Robotic-Assisted Hysterectomy for Uterine Leiomyomas: A Comparison of Complications and Costs. AB - OBJECTIVE: Robotic surgery is increasingly being used for treatment of malignant and benign gynaecologic diseases. The purpose of our study is to compare patient perioperative complications and costs of laparoscopic versus robotic-assisted hysterectomy for uterine leiomyomas. METHODS: A retrospective cohort study using the Nationwide Inpatient Sample database from the United States was conducted, comparing patients who underwent robotic-assisted hysterectomy and laparoscopic hysterectomy (total laparoscopic hysterectomy and laparoscopic-assisted vaginal hysterectomy) for uterine fibroids between 2008 and 2012. Baseline characteristics were compared between the two groups, and logistic regression was used to compare postoperative outcomes between laparoscopic and robotic approaches. Direct costs were compared between the two groups using linear regression models. RESULTS: Over a five-year period, the total number of hysterectomies performed increased. Patients undergoing robotic hysterectomy were older and had more comorbidities. In adjusted analyses, women who underwent robotic surgery were more likely to have respiratory failure (0.71% vs. 0.39%; P < 0.0108), postoperative fever (1.05% vs. 0.67%, P < 0.0002), and ileus (1.76% vs. 1.3%; P < 0.0060), and less likely to require transfusions (3.4% vs. 3.96%; P < 0.0037). Robotic surgery was consistently more expensive, with a median cost of $33 928.00 compared with $23 753.00 for laparoscopic hysterectomy. CONCLUSION: While there are only slight differences in postoperative complications between laparoscopic-assisted hysterectomy and robotic-assisted hysterectomy, robotic assisted hysterectomy is associated with considerably greater direct costs. Unless specific indications for robotic-assisted hysterectomy exist, laparoscopic assisted hysterectomy should be the preferred approach for minimally invasive surgical treatment of leiomyomas. PMID- 29032065 TI - Guidelines on Opportunistic Salpingectomy and IVF. PMID- 29032066 TI - Standardization of Laparoscopic Operative Reporting: Improving Gynaecological Surgeon Communication. AB - OBJECTIVE: No standardization of quality of operative reporting currently exists, and this represents a missed opportunity for communication among health care providers. This study proposed a method to improve operative notes by structuring the findings by six anatomical zones of the pelvis. Objective I was to validate the method of documenting six zones of the pelvis by using intraoperative photography. Objective II was to compare this method with dictations from operative reports created before introducing this method. METHODS: This retrospective cohort study evaluated pre- and post-intervention results of using six zones to guide operative reporting. Reports were collected from participating surgeons and were scored using a validated scoring tool. Each participant was taught to photograph six zones and use the zones in the operative report. Pre- and post-intervention cases were compared using generalized linear mixed models. RESULTS: Scores of study participants using the zones were significantly higher than those without (P <0.0001). Surgeons showed an ability to improve their reporting. The detail illustrated in the cases was qualitatively richer, and the anatomy within the six zones was referenced more frequently. CONCLUSION: Compared with reports without the technique, incorporating the six zones greatly enhances operative reporting and likely would improve communication among care providers. More reliable communication of intraoperative findings has the potential to enhance the value of laparoscopy greatly as a diagnostic tool across gynaecological subspecialties. PMID- 29032067 TI - A Rare Case of Gestational Choriocarcinoma Presenting as Cornual Ectopic Pregnancy. AB - BACKGROUND: Choriocarcinoma associated with cornual pregnancy is extremely rare. To our knowledge, only three other cases have been reported in the literature. CASE: A 38-year-old woman was found to have a left cornual ectopic pregnancy on ultrasound after presenting with abdominal pain, irregular vaginal bleeding, and a positive pregnancy test. Laparoscopy confirmed the diagnosis and she underwent total abdominal hysterectomy. Three weeks later, she presented with vaginal bleeding. A solid ulcerating lesion was found arising from the vaginal wall and biopsy revealed metastatic gestational choriocarcinoma. CONCLUSION: Careful histopathological examination of the surgical specimen and diligent monitoring of beta-human chorionic gonadotropin to zero is crucial to prevent potentially missing this very malignant, but highly curable disease. Early systemic metastases are common and presentation can include bleeding from vaginal metastases. PMID- 29032068 TI - CRISPR Gene Editing Should Be Allowed in Canada, But Under What Circumstances? PMID- 29032069 TI - Woman's Pre-Conception Evaluation: Genetic and Fetal Risk Considerations for Counselling and Informed Choice. AB - OBJECTIVE: To inform reproductive and other health care providers about genetic and fetal risk information to consider during a woman/couples' pre-conception evaluation, including considerations for genetic risk assessment, genetic screening, or testing to allow for improved counselling and informed choice. OPTIONS: This genetic information can be used for patient education, planning, and possible pre-conception and/or prenatal testing. OUTCOMES: This information may allow improved risk assessment for pre-conception counselling for individual patients and their families. EVIDENCE: PubMed or Medline and the Cochrane Database were searched in May 2017 using appropriate key words ("pre-conception," "genetic disease," "maternal," "family history," "genetic," "health risk," "genetic health surveillance," "prenatal screening," "prenatal diagnosis," "birth defects," and "teratogen"). Grey (unpublished) literature was identified through searching the websites of health technology assessment and health technology assessment-related agencies, clinical practice guideline collections, and national and international medical specialty societies. BENEFITS, HARMS, AND COSTS: The benefits for the patient and her family include an increased understanding of relevant genetic risk pre-conception and in early pregnancy, and better pregnancy outcomes as a result of use of the information. The harm includes potential increased anxiety or psychological stress associated with the possibility of identifying genetic risks. VALIDATION: The evidence obtained was peer-reviewed by the Genetics Committee of The Society of Obstetricians and Gynaecologists of Canada. Consideration for Care Statements For this review article, the Consideration for Care Statements use the GRADE strength and quality as it is comparable for the clinician and the patient/public user. [GRADE from the Canadian Task Force on Preventive Health Care (www.canadiantaskforce.ca). For clinicians, Strong = The recommendation would apply to most individuals. Formal discussion aids are not likely to be needed to help individuals make decisions consistent with their values and preferences. For patients/public, Strong = We believe most people in this situation would want the recommended course of actions and only a small number would not. Quality of evidence (High, Moderate, Low) based on the confidence that the true effect lies close to that of the estimate of the effect.] Conclusion Pre-conception planning is presently underutilized by both patients and providers. Pre-conception genetic assessment is only a part of the counselling, education, and health management change that can improve perinatal and maternal morbidity and mortality. A published literature review on pre-conception genetic counselling identified mainly clinical cohort studies, surveys, and expert opinion with no RCTs. There is strong support for pre-conception counselling and moderate quality based on the understanding that most individuals would support and use pre-conception counselling when choice, timing, and ease of access is considered. PMID- 29032070 TI - The Practical Side of Opportunistic Salpingectomy. PMID- 29032071 TI - Comparing intestinal versus diffuse gastric cancer using a PEFF-oriented proteomic pipeline. AB - : Gastric cancer is the fifth most common malignant neoplasia and the third leading cause of cancer death worldwide. Mac-Cormick et al. recently showed the importance of considering the anatomical region of the tumor in proteomic gastric cancer studies; more differences were found between distinct anatomical regions than when comparing healthy versus diseased tissue. Thus, failing to consider the anatomical region could lead to differential proteins that are not disease specific. With this as motivation, we compared the proteomic profiles of intestinal and diffuse adenocarcinoma from the same anatomical region, the corpus. To achieve this, we used isobaric labeling (iTRAQ) of peptides, a 10-step HILIC fractionation, and reversed-phase nano-chromatography coupled online with a Q-Exactive Plus mass spectrometer. We updated PatternLab to take advantage of the new Comet-PEFF search engine that enables identifying post-translational modifications and mutations included in neXtProt's PSI Extended FASTA Format (PEFF) metadata. Our pipeline then uses a text-mining tool that automatically extracts PubMed IDs from the proteomic result metadata and drills down keywords from manuscripts related with the biological processes at hand. Our results disclose important proteins such as apolipoprotein B-100, S100 and 14-3-3 proteins, among many others, highlighting the different pathways enriched by each cancer type. SIGNIFICANCE: Gastric cancer is a heterogeneous and multifactorial disease responsible for a significant number of deaths every year. Despite the constant improvement of surgical techniques and multimodal treatments, survival rates are low, mostly due to limited diagnostic techniques and late symptoms. Intestinal and diffuse types of gastric cancer have distinct clinical and pathological characteristics; yet little is known about the molecular mechanisms regulating these two types of gastric tumors. Here we compared the proteomic profile of diffuse and intestinal types of gastric cancer from the same anatomical location, the corpus, from four male patients. This methodological design aimed to eliminate proteomic variations resulting from comparison of tumors from distinct anatomical regions. Our PEFF-tailored proteomic pipeline significantly increased the identifications as when compared to previous versions of PatternLab. PMID- 29032072 TI - Oxidative stress prediction: A preliminary approach using a response surface based technique. AB - A response surface was built to predict the lipid peroxidation level, generated in an iron-ascorbate in vitro model, of any organ, which is correlated with the oxidative stress injury in biological membranes. Oxidative stress studies are numerous, usually performed on laboratory animals. However, ethical concerns require validated methods to reduce the use of laboratory animals. The response surface described here is a validated method to replace animals. Tissue samples of rabbit liver, kidney, heart, skeletal muscle and brain were oxidized with different concentrations of FeCl3 (0.1 to 8mM) and ascorbate (0.1mM), during different periods of time (0 to 90min) at 37 degrees C. Experimental data obtained, with lipid content and antioxidant activity of each organ, allowed constructing a multidimensional surface capable of predicting, by interpolation, the lipid peroxidation level of any organ defined by its antioxidant activity and fat content, when exposed to different oxidant conditions. To check the predictive potential of the technique, two more experiments were carried out. First, in vitro oxidation data from lung tissue were collected. Second, the antioxidant capacity of kidney homogenates was modified by adding melatonin. Then, the response surface generated could predict lipid peroxidation levels produced in these new situations. The potential of this technique could be reinforced using collaborative databases to reduce the number of animals in experimental procedures. PMID- 29032073 TI - A Compendium of Co-regulated Protein Complexes in Breast Cancer Reveals Collateral Loss Events. AB - Protein complexes are responsible for the bulk of activities within the cell, but how their behavior and abundance varies across tumors remains poorly understood. By combining proteomic profiles of breast tumors with a large-scale protein protein interaction network, we have identified a set of 285 high-confidence protein complexes whose subunits have highly correlated protein abundance across tumor samples. We used this set to identify complexes that are reproducibly under or overexpressed in specific breast cancer subtypes. We found that mutation or deletion of one subunit of a co-regulated complex was often associated with a collateral reduction in protein expression of additional complex members. This collateral loss phenomenon was typically evident from proteomic, but not transcriptomic, profiles, suggesting post-transcriptional control. Mutation of the tumor suppressor E-cadherin (CDH1) was associated with a collateral loss of members of the adherens junction complex, an effect we validated using an engineered model of E-cadherin loss. PMID- 29032074 TI - Widespread Post-transcriptional Attenuation of Genomic Copy-Number Variation in Cancer. AB - Copy-number variations (CNVs) are ubiquitous in cancer and often act as driver events, but the effects of CNVs on the proteome of tumors are poorly understood. Here, we analyze recently published genomics, transcriptomics, and proteomics datasets made available by CPTAC and TCGA consortia on 282 breast, ovarian, and colorectal tumor samples to investigate the impact of CNVs in the proteomes of these cells. We found that CNVs are buffered by post-transcriptional regulation in 23%-33% of proteins that are significantly enriched in protein complex members. Our analyses show that complex subunits are highly co-regulated, and some act as rate-limiting steps of complex assembly, as their depletion induces decreased abundance of other complex members. We identified 48 such rate-limiting interactions and experimentally confirmed our predictions on the interactions of AP3B1 with AP3M1 and GTF2E2 with GTF2E1. This study highlights the importance of post-transcriptional mechanisms in cancer that allow cells to cope with their altered genomes. PMID- 29032075 TI - Synthesis, structures, and ESI-mass studies of silver(I) derivatives of imidazolidine-2-thiones: Antimicrobial potential and biosafety evaluation. AB - The basic objective of this investigation is to explore potential metallo-organic antimicrobial agents based on silver-heterocyclic-2-thiones. In this respect, a series of silver(I) halide complexes with imidazolidine-2-thiones (L-NR, R=H, Me, Et, Prn, Bun, Ph), namely, mononuclear [AgX(L-NR)(PPh3)2] (X, R: Cl, Bu, 1; Br, Ph, 7); [AgX(L-NR)3] (Br, Bu, 5; Br, Prn, 8) and halogen bridged dinuclear [Ag2(MU-X)2(L-NR)2(PPh3)2] (Cl, Bun, 2; Cl, Ph, 3; Cl, Prn, 4; Br, Ph, 6) have been synthesized and characterized using modern techniques. The thio-ligands are terminally S-bonded in all the complexes. The in vitro antimicrobial potential and biosafety evaluation of the above complexes as well as that of previously reported analogous silver complexes has been studied against Gram positive bacteria, namely, Staphylococcus aureus (MTCC 740) and Methicillin resistant Staphylococcus aureus (MRSA), Gram negative bacteria Klebsiella pneumoniae (MTCC 109), Salmonella typhimurium (MTCC 98) and a yeast Candida albicans (MTCC 227). Most of the complexes tested have shown significant antimicrobial activity with low values of minimum inhibitory concentration (MIC). Significantly, the activity against MRSA is an important outcome of this investigation. Among complexes tested for their cytotoxicity using MTT [3-(4, 5-dimethylthiazol-2-yl)-2, 5 diphenyl tetrazolium bromide] assay, some complexes showed low cellular toxicity with high percent cell viability. A dinuclear complex [Ag2(MU-Cl)2(L NPh)2(PPh3)2] 3 with 93.3% cell viability emerges the most important candidate for further investigations. PMID- 29032077 TI - Linoleic acid and risk of type 2 diabetes. PMID- 29032080 TI - Is the new treatment for Cushing's disease too sweet? PMID- 29032081 TI - Protein malnutrition after weaning disrupts peripheral clock and daily insulin secretion in mice. AB - Changes in nutritional state may alter circadian rhythms through alterations in expression of clock genes. Protein deficiency has a profound effect on body metabolism, but the effect of this nutrient restriction after weaning on biological clock has not been explored. Thus, this study aims to investigate whether the protein restriction affects the daily oscillation in the behavior and metabolic rhythms, as well as expression of clock genes in peripheral tissues. Male C57BL/6 J mice, after weaning, were fed a normal-protein (NP) diet or a low protein (LP) diet for 8 weeks. Mice fed an LP diet did not show difference in locomotor activity and energy expenditure, but the food intake was increased, with parallel increased expression of the orexigenic neuropeptide Npy and disruption of the anorexigenic Pomc oscillatory pattern in the hypothalamus. LP mice showed disruption in the daily rhythmic patterns of plasma glucose, triglycerides and insulin. Also, the rhythmic expression of clock genes in peripheral tissues and pancreatic islets was altered in LP mice. In pancreatic islets, the disruption of clock genes was followed by impairment of daily glucose stimulated insulin secretion and the expression of genes involved in exocytosis. Pharmacological activation of REV-ERBalpha could not restore the insulin secretion in LP mice. The present study demonstrates that protein restriction, leading to development of malnutrition, alters the peripheral clock and metabolic outputs, suggesting that this nutrient provides important entraining cues to regulate the daily fluctuation of biological clock. PMID- 29032078 TI - Efficacy and safety of once-monthly pasireotide in Cushing's disease: a 12 month clinical trial. AB - BACKGROUND: Cushing's disease is a rare debilitating endocrine disorder for which few prospective interventional studies have been done. We report results of the first phase 3 trial assessing long-acting intramuscular pasireotide in patients with Cushing's disease. METHODS: In this phase 3 clinical trial we recruited patients aged 18 years or older with persistent, recurrent, or de-novo (non surgical candidates) Cushing's disease who had a mean urinary free cortisol (mUFC) concentration (from three 24 h samples) of 1.5-5.0 times the upper limit of normal (ULN), a normal or greater than normal morning plasma adrenocorticotropic hormone concentration, and a pituitary source of Cushing's syndrome, from 57 sites across 19 countries. Exclusion criteria included previous pasireotide treatment, mitotane therapy within 6 months, and pituitary irradiation within 10 years. We randomly allocated patients 1:1 (block size of four) using an interactive-response-technology system to intramuscular pasireotide 10 mg or 30 mg every 4 weeks for 12 months (in the core phase). We stratified randomisation by screening mUFC concentration (1.5 to <2.0 * ULN and 2.0-5.0 * ULN). The dose could be uptitrated (from 10 mg to 30 mg or from 30 mg to 40 mg) at month 4 if the mUFC concentration was greater than 1.5 * ULN, and at month 7, month 9, or month 12 if the mUFC concentration was greater than 1.0 * ULN. Investigators, patients, site personnel, and those assessing outcomes were masked to dose group allocation. The primary endpoint was the proportion of patients in each group with an mUFC concentration of less than or equal to the ULN at month 7. Efficacy analyses were based on intention to treat. This trial is registered with ClinicalTrials.gov, number NCT01374906. FINDINGS: Between Dec 28, 2011, and Dec 9, 2014, we randomly allocated 150 patients to receive pasireotide 10 mg (74 [49%] patients) or 30 mg (76 [51%] patients). The primary efficacy endpoint was met by 31 (41.9% [95% CI 30.5-53.9]) of 74 patients in the 10 mg group and 31 (40.8% [29.7-52.7]) of 76 in the 30 mg group. The most common adverse events were hyperglycaemia (36 [49%] in the 10 mg group and 36 [47%] in the 30 mg group), diarrhoea (26 [35%] and 33 [43%]), cholelithiasis (15 [20%] and 34 [45%]), diabetes mellitus (14 [19%] and 18 [24%]), and nausea (15 [20%] and 16 [21%]). Serious adverse events suspected to be study drug related were reported in eight (11%) patients in the 10 mg group and four (5%) in the 30 mg group. Two (3%) patients in the 30 mg group died during the study (pulmonary artery thrombosis and cardiorespiratory failure); neither death was judged to be related to the study drug. INTERPRETATION: Long-acting pasireotide normalised mUFC concentration in about 40% of patients with Cushing's disease at month 7 and had a similar safety profile to that of twice-daily subcutaneous pasireotide. Long acting pasireotide is an efficacious treatment option for some patients with Cushing's disease who have persistent or recurrent disease after initial surgery or are not surgical candidates, and provides a convenient monthly administration schedule. FUNDING: Novartis Pharma AG. PMID- 29032083 TI - Antimicrobial and antioxidant properties of polyvinyl alcohol bio composite films containing seaweed extracted cellulose nano-crystal and basil leaves extract. AB - Polyvinyl alcohol (PVA) films containing seaweed extracted cellulose nanocrystal (CNC) (5% w/v) and 5, 10, and 20% (w/v) basil leaves extract (BE) were prepared using the solvent casting method, and their physical properties, and antimicrobial and antioxidant activity were analyzed. The addition of 5% (w/v) CNC to PVA improved the tensile strength and water vapor permeability. Addition of BE to film the antioxidant activity and antimicrobial properties of the films were enhanced. Further, increasing the amount of BE slightly affected the color of the bio-nanocomposites. The thermal stability of films was improved with addition of CNC. Due to functional groups and linkage properties of the CNC surface and macromolecular chains of the PVA were responsible for improvement of the interfacial interactions between the CNC and PVA. The dispersion of CNC in PVA were affected with increase in the amount of BE in PVA. This study showed the benefits of the incorporation of CNC and BE into PVA films and the potential for their use as active packaging material for food. PMID- 29032084 TI - Facile synthesis of low-cost magnetic biosorbent from peach gum polysaccharide for selective and efficient removal of cationic dyes. AB - Magnetic biosorbents derived from renewable resource are emerging as a new class of adsorbing material for environmental cleanup because of their eco-friendly characteristic, easy availability and low cost. Herein, a novel magnetic peach gum bead (MPGB) biosorbent was successfully fabricated by a simple one-step reaction based on the simultaneous formation of magnetic nanoparticles and cross linking of natural peach gum polysaccharide. Benefiting from the combined merits of peach gum and magnetic nanoparticles, the MPGB not only showed excellent adsorption performance for cationic dyes but also exhibited convenient magnetic separation capability. The influences of pH, ionic strength, initial dye concentration, contact time and temperature on the adsorption property of MPGB biosorbent were investigated by choosing methylene blue (MB) as a representative cationic dye. The Langmuir isotherm fitted the adsorption isotherm well with maximum adsorption capacity of 231.5mgg-1. Kinetic data showed good correlation with pseudo-second-order model. Thermodynamic investigation revealed that the adsorption process was spontaneous and endothermic. Moreover, the MPGB exhibits nice reusability. Considering the facile fabrication process and excellent adsorption performance, the MPGBs hold great promise for using as biosorbent for environmental cleanup. PMID- 29032082 TI - Effects of triclosan on hormones and reproductive axis in female Yellow River carp (Cyprinus carpio): Potential mechanisms underlying estrogen effect. AB - Triclosan (TCS), a member of the class of compounds called pharmaceutical and personal care products (PPCPs), is a broad antibacterial and antifungal agent found in a lot of consumer products. However, TCS hormone effect mechanism in teleost female fish is not clear. Female Yellow River carp (Cyprinus carpio) were exposed to 1/20, 1/10 and 1/5 LC50 TCS (96h LC50 of TCS to carp) under semi static conditions for 42days. Vitellogenin (Vtg), 17beta-estradiol (E2), testosterone(T), estrogen receptor (Er), gonadotropin (GtH), and gonadotropin releasing hormone (GnRH) levels were measured by enzyme-linked immunosorbent assay (ELISA). Meanwhile, we also examined the mRNA expressions of aromatase, GtHs-beta, GnRH, and Er by quantitative real-time PCR (qRT-PCR). The results indicated that 1/5 LC50 TCS induced Vtg in hepatopancreas of female carps by interference with the hypothalamic-pituitary-gonadal (HPG) axis at multiple potential loci through three mechanisms: (a) TCS exposure enhanced the mRNA expression of hypothalamus and gonadal aromatase which converts androgens into estrogens, subsequently increasing serum concentrations of E2 to induce Vtg in hepatopancreas; (b) TCS treatment increased GnRH and GtH-beta mRNA expression and secretion, causing the disturbance of reproductive endocrine and the increase of E2 to induce Vtg in hepatopancreas; (c) TCS exposure enhanced synthesis and secretion of Er, then it bound to Er to active Vtg synthesis. These mechanisms showed that TCS may induce Vtg production in female Yellow River carp by Er mediated and non-Er-mediated pathways. PMID- 29032079 TI - Omega-6 fatty acid biomarkers and incident type 2 diabetes: pooled analysis of individual-level data for 39 740 adults from 20 prospective cohort studies. AB - BACKGROUND: The metabolic effects of omega-6 polyunsaturated fatty acids (PUFAs) remain contentious, and little evidence is available regarding their potential role in primary prevention of type 2 diabetes. We aimed to assess the associations of linoleic acid and arachidonic acid biomarkers with incident type 2 diabetes. METHODS: We did a pooled analysis of new, harmonised, individual level analyses for the biomarkers linoleic acid and its metabolite arachidonic acid and incident type 2 diabetes. We analysed data from 20 prospective cohort studies from ten countries (Iceland, the Netherlands, the USA, Taiwan, the UK, Germany, Finland, Australia, Sweden, and France), with biomarkers sampled between 1970 and 2010. Participants included in the analyses were aged 18 years or older and had data available for linoleic acid and arachidonic acid biomarkers at baseline. We excluded participants with type 2 diabetes at baseline. The main outcome was the association between omega-6 PUFA biomarkers and incident type 2 diabetes. We assessed the relative risk of type 2 diabetes prospectively for each cohort and lipid compartment separately using a prespecified analytic plan for exposures, covariates, effect modifiers, and analysis, and the findings were then pooled using inverse-variance weighted meta-analysis. FINDINGS: Participants were 39 740 adults, aged (range of cohort means) 49-76 years with a BMI (range of cohort means) of 23.3-28.4 kg/m2, who did not have type 2 diabetes at baseline. During a follow-up of 366 073 person-years, we identified 4347 cases of incident type 2 diabetes. In multivariable-adjusted pooled analyses, higher proportions of linoleic acid biomarkers as percentages of total fatty acid were associated with a lower risk of type 2 diabetes overall (risk ratio [RR] per interquintile range 0.65, 95% CI 0.60-0.72, p<0.0001; I2=53.9%, pheterogeneity=0.002). The associations between linoleic acid biomarkers and type 2 diabetes were generally similar in different lipid compartments, including phospholipids, plasma, cholesterol esters, and adipose tissue. Levels of arachidonic acid biomarker were not significantly associated with type 2 diabetes risk overall (RR per interquintile range 0.96, 95% CI 0.88-1.05; p=0.38; I2=63.0%, pheterogeneity<0.0001). The associations between linoleic acid and arachidonic acid biomarkers and the risk of type 2 diabetes were not significantly modified by any prespecified potential sources of heterogeneity (ie, age, BMI, sex, race, aspirin use, omega-3 PUFA levels, or variants of the FADS gene; all pheterogeneity>=0.13). INTERPRETATION: Findings suggest that linoleic acid has long-term benefits for the prevention of type 2 diabetes and that arachidonic acid is not harmful. FUNDING: Funders are shown in the appendix. PMID- 29032085 TI - Fabrication and characterization of tea polyphenols loaded pullulan-CMC electrospun nanofiber for fruit preservation. AB - Edible packaging films using polymer for food preservation have been developed for a long time. In this study, the effects of different concentrations (0.5%, 1%, 1.5%, w/v) of tea polyphenols incorporated into pullulan Carboxymethylcellulose sodium (Pul-CMC) solutions on electrospun nanofiber films were evaluated. The fiber size distribution was characterized by scanning electron microscopy. The morphological features of nanofibers were modulated through adjusting process parameters (e.g. concentration of polymer solution, applied voltage and feeding rate). Increasing the applied voltage from 19 to 21kV and the feed rate from 0.36 to 0.6mL/h leads to a reduction in mean fiber diameter. Fruit packaging potential was evaluated using strawberry. The pullulan CMC-TP nanofibers significantly decreased weight loss and maintained the firmness of the strawberries, and improved the quality of the fruit during storage. The findings demonstrate a facile packaging route to improve food sustainability and reduce waste. PMID- 29032086 TI - Two trypsin isoforms from albacore tuna (Thunnus alalunga) liver: Purification and physicochemical and biochemical characterization. AB - Two trypsins (A and B) from the liver of albacore tuna (Thunnus alalunga) were purified to homogeneity using a series of column chromatographies including Sephacryl S-200, Sephadex G-50 and Diethylaminoethyl-cellulose. Purity was increased to 80.35- and 101.23-fold with approximately 3.1 and 19.2% yield for trypsins A and B, respectively. The molecular weights of trypsins A and B were estimated to be 21 and 24kDa, respectively, by SDS-PAGE and size exclusion chromatography. Both trypsins showed only one band on native-PAGE. Trypsins A and B exhibited the maximal activity at 60 degrees C and 55 degrees C, respectively, and had the same optimal pH at 8.5 using Nalpha-p-Tosyl-l-arginine methyl ester hydrochloride (TAME) as a substrate. Stabilities of both trypsins were well maintained at a temperature up to 50 degrees C and in the pH range of 7.0-11.0 and were highly dependent on the presence of calcium ion. The inhibition test demonstrated strong inhibition by soybean trypsin inhibitor and TLCK. Activity of both trypsins continuously decreased with increasing NaCl concentration (0-30%). The N-terminal amino acid sequence of 20 residues of the two trypsin isoforms had homology when compared to those of other fish trypsins. PMID- 29032087 TI - Are we really measuring empathy? Proposal for a new measurement framework. AB - Empathy - currently defined as the sharing of another's affective state - has been the focus of much psychological and neuroscientific research in the last decade, much of which has been focused on ascertaining the empathic ability of individuals with various clinical conditions. However, most of this work tends to overlook the fact that empathy is the result of a complex process requiring a number of intermediate processing steps. It is therefore the case that describing an individual or group as 'lacking empathy' lacks specificity. We argue for an alternative measurement framework, in which we explain variance in empathic response in terms of individual differences in the ability to identify another's emotional state ('emotion identification'), and the degree to which identification of another's state causes a corresponding state in the self ('affect sharing'). We describe how existing empathy paradigms need to be modified in order to fit within this measurement framework, and illustrate the utility of this approach with reference to examples from both cognitive neuroscience and clinical psychology. PMID- 29032089 TI - Transcranial magnetic stimulation in basic and clinical neuroscience: A comprehensive review of fundamental principles and novel insights. AB - Non-invasive brain stimulation methods, such as Transcranial Magnetic Stimulation (TMS), are widely used worldwide to make causality-based inferences about brain behavior interactions. TMS-based clinical applications have been shown promising to treat neurological or psychiatric diseases. TMS works by inducing non invasively electric currents in localized cortical regions thus modulating their excitability levels and ongoing activity patterns depending on stimulation settings: frequency, number of pulses, train duration and intertrain intervals. Proper use of TMS in the fundamental and clinical neuroscience research requires a deep understanding of its operational principles, risks, potential and limitations. In this article we present the principles through which TMS is thought to operate. Readers will be provided with the bases to be able to understand and critically discuss TMS studies and design hypothesis driven TMS applications for basic and clinical neuroscience. Moreover, some recently identified physiological phenomena which that can dramatically influence the efficacy and magnitude of TMS impact and technological and methodological developments to guide TMS interventions that are becoming mainstream in the field will be also reviewed. PMID- 29032090 TI - Hypothalamic-pituitary-adrenal (HPA) axis functioning as predictor of antidepressant response-Meta-analysis. AB - OBJECTIVE: Although antidepressants are effective, around 50% of depressed patients are non-responsive. At the same time, some patients show alterations in the hypothalamic-pituitary-adrenal (HPA) axis. Due to interactions with central monoaminergic systems, these may profit less from antidepressants. METHOD: To determine whether non-responders and responders differed in pre-treatment HPA axis functioning, the Cochrane Library, EMBASE, MEDLINE, and PsycINFO were searched. Studies using patients with depression being treated with antidepressants, and including both a pre-treatment HPA and a post-treatment response measure were included. Standardised mean differences were calculated for meta-analysis. RESULTS: Thirty-nine studies were included. Non-responders and responders did not differ in pre-treatment corticotropin-releasing hormone or adrenocorticotropic hormone. Meta-regression showed non-responders had comparably higher pre-treatment cortisol in studies measuring cortisol non-invasively, not reporting sample storage, failing to control for age, and excluding patients with comorbidities. CONCLUSIONS: Only studies with a specific methodological profile seem to be able to show that the more marked depressed patients' alterations in the HPA axis, the less likely they are to profit from antidepressants. PMID- 29032091 TI - Molecular-level insights into mercury removal mechanism by pyrite. AB - Natural pyrite (FeS2) has been regarded as a kind of potential sorbents to control mercury emission from coal-fired power plants because of its low cost and high affinity between mercury and FeS2. Theoretical investigations based on density functional theory (DFT) were carried out to discern mercury adsorption, reaction and desorption mechanisms over pyrite surface. DFT calculation results indicate that Hg0 adsorption on FeS2(100) and FeS2(110) surfaces is dominated by physisorption and chemisorption mechanisms, respectively. Mercury atom interacts strongly with Fe atom on FeS2(110) surface through the atomic orbital hybridization and overlap. HgS is chemically adsorbed on FeS2(100) and FeS2(110) surfaces. Electron density difference analysis implies that the significant charge accumulation around sulfur atom of adsorbed HgS molecule is closely associated with the strong interaction between gaseous HgS and pyrite surface. The reaction pathway leading to the formation of gaseous HgS is a three-step process: Hg0->Hg(ads)->HgS(ads)->HgS. In the second step, the energy barrier of diatomic surface reaction between adsorbed Hg0 and S2- monomer is approximately 17kJ/mol. The third step is an endothermic process which requires an external energy of about 414.60kJ/mol to desorb the formed HgS, and is the rate determining step. PMID- 29032092 TI - Three dimensional hierarchical heterostructures of g-C3N4 nanosheets/TiO2 nanofibers: Controllable growth via gas-solid reaction and enhanced photocatalytic activity under visible light. AB - Graphitic C3N4 nanosheets were uniformly grown on electrospun TiO2 nanofibers with three-dimensional nanofibrous networks via a facial gas-solid reaction. The mass loading of g-C3N4 nanosheets could be easily controlled by adjusting the mass ratios of gaseous precursors (urea) to TiO2 NFs. The three-dimensional hierarchical heterostructures of g-C3N4 nanosheets/TiO2 nanofibers could be obtained with excellent distribution and high specific surface area of 121.5m2g 1, when the mass loading of g-C3N4 was 59.8wt.%. Under visible light irradiation, the degradation rate constant (rhodamine B) and the H2 evolution rate of the heterostructures were about 4.6 and 1.6 times of pure g-C3N4, while 23 and 167.8 times of TiO2 nanofibers, respectively. Their enhanced performance could be attributed to the effective charge separation and electron transfer process. Our work provides an attractive strategy to construct various three-dimensional hierarchical heterostructures of g-C3N4 nanosheets for environmental and energy applications. PMID- 29032093 TI - Formation of brominated oligomers during phenol degradation on boron-doped diamond electrode. AB - In this research, the brominated oligomers formed during phenol degradation with boron-doped diamond (BDD) anode had been initially studied at three different concentrations of bromide (1, 10 and 100mM). The results from LC/MS analysis indicated that, brominated monomer, dimer and trimer of phenols resulting from electrophilic substitution and coupling reactions were the important reaction by products. Specifically, the trimer by-products were generated only in bromide rich systems. The reaction mechanisms concerning oligomer formations were proposed in detail accordingly. The above results were in well accordance with those recorded in the degradation experiments. As a whole, bromides and chlorides demonstrated quite different effects toward phenol degradation, which deepened our understanding on the reactions involved in BDD anode cells. PMID- 29032088 TI - Sleep and circadian disruption and incident breast cancer risk: An evidence-based and theoretical review. AB - Opportunities for restorative sleep and optimal sleep-wake schedules are becoming luxuries in industrialized cultures, yet accumulating research has revealed multiple adverse health effects of disruptions in sleep and circadian rhythms, including increased risk of breast cancer. The literature on breast cancer risk has focused largely on adverse effects of night shift work and exposure to light at night (LAN), without considering potential effects of associated sleep disruptions. As it stands, studies on breast cancer risk have not considered the impact of both sleep and circadian disruption, and the possible interaction of the two through bidirectional pathways, on breast cancer risk in the population at large. We review and synthesize this literature, including: 1) studies of circadian disruption and incident breast cancer; 2) evidence for bidirectional interactions between sleep and circadian systems; 3) studies of sleep and incident breast cancer; and 4) potential mechanistic pathways by which interrelated sleep and circadian disruption may contribute to the etiology of breast cancer. PMID- 29032094 TI - Bicarbonate-activated hydrogen peroxide and efficient decontamination of toxic sulfur mustard and nerve gas simulants. AB - 13C NMR spectra showed that peroxymonocarbonate (HCO4-) was generated in the NaHCO3-activated H2O2 solution and pH was a key factor in its production. A cycle for the bicarbonate anion was proposed as HCO3-->HCO3 -> (CO2)2*->CO2(aq)->HCO4- (H2CO4)->HCO3- (HCO3) basing on the results of NMR, electron paramagnetic resonance, chemiluminescence analysis. In this cycle, (CO2)2* was the key intermediate and (CO2)2*->2CO2+hv was the rate controlling step. Thioanisole and paraoxon, the simulants of sulfur mustard gas and nerve gas, respectively, were efficiently decontaminated by the NaHCO3-activated H2O2 solution. While HCO4- was the primary oxidant for the oxidation of thioanisole, O2- generated during the decomposition of HCO4- or H2O2 led to the secondary oxidation of the sulfide. Paraoxon was degraded in the NaHCO3-activated H2O2 solution via nucleophilic substitution by OOH- and OH-, and the degradation rate increased exponentially with increasing pH. Alkali metal ions had a catalytic effect on the degradation of paraoxon. Mustard gas and soman degraded efficiently into nontoxic products in NaHCO3-activated H2O2. A pH range of 9-10 was found to be optimum for the broad spectrum decontamination of chemical warfare agents and other eco-toxicants using NaHCO3-activated H2O2. PMID- 29032095 TI - A review on environmental monitoring of water organic pollutants identified by EU guidelines. AB - The contamination of fresh water is a global concern. The huge impact of natural and anthropogenic organic substances that are constantly released into the environment, demands a better knowledge of the chemical status of Earth's surface water. Water quality monitoring studies have been performed targeting different substances and/or classes of substances, in different regions of the world, using different types of sampling strategies and campaigns. This review article aims to gather the available dispersed information regarding the occurrence of priority substances (PSs) and contaminants of emerging concern (CECs) that must be monitored in Europe in surface water, according to the European Union Directive 2013/39/EU and the Watch List of Decision 2015/495/EU, respectively. Other specific organic pollutants not considered in these EU documents as substances of high concern, but with reported elevated frequency of detection at high concentrations, are also discussed. The search comprised worldwide publications from 2012, considering at least one of the following criteria: 4 sampling campaigns per year, wet and dry seasons, temporal and/or spatial monitoring of surface (river, estuarine, lake and/or coastal waters) and ground waters. The highest concentrations were found for: (i) the PSs atrazine, alachlor, trifluralin, heptachlor, hexachlorocyclohexane, polycyclic aromatic hydrocarbons and di(2-ethylhexyl)phthalate; (ii) the CECs azithromycin, clarithromycin, erythromycin, diclofenac, 17alpha-ethinylestradiol, imidacloprid and 2-ethylhexyl 4-methoxycinnamate; and (iii) other unregulated organic compounds (caffeine, naproxen, metolachlor, estriol, dimethoate, terbuthylazine, acetaminophen, ibuprofen, trimethoprim, ciprofloxacin, ketoprofen, atenolol, Bisphenol A, metoprolol, carbofuran, malathion, sulfamethoxazole, carbamazepine and ofloxacin). Most frequent substances as well as those found at highest concentrations in different seasons and regions, together with available risk assessment data, may be useful to identify possible future PS candidates. PMID- 29032096 TI - Influence of inoculating white-rot fungi on organic matter transformations and mobility of heavy metals in sewage sludge based composting. AB - White-rot fungi, Phanerochaete chrysosporium was inoculated to sewage sludge composting. Its effect on transformation of organic matter and mobility of heavy metals (Zn, Pb, Cu, and Ni) was studied. Detailed sampling was performed to measure C contents in humic extracts (HE), humic acids (HAs), fulvic acids (FAs), humin and distribution of heavy metals, including acid exchangeable fraction (AE), reducible fraction (RED), oxidization fraction (OXI) and residual fraction (RES). In our study, it is evident that the HE, HAs increased obviously and hydrolyzed humin decreased markedly in inoculation. The stabilization rate ((OXI+RES)/(AE+RED)) of Zn, Pb, Cu, and Ni was 20.31%, 7%, 14.3% and 19.79% higher in inoculating reactor. Additionally, the changes of heavy metals fractions could be explained by the organic variables. The results of this study demonstrated that Phanerochaete chrysosporium passivates the heavy metal by provoking the formation of humus. PMID- 29032098 TI - Calcination effect of borate-bearing hydroxyapatite on the mobility of borate. AB - Discharge from accidental nuclear power plants includes boric acid, which is used as a neutron absorbent in nuclear reactors. Co-precipitation of borate with hydroxyapatite (HAp), using Ca(OH)2, is known to be an effectively fast method for stabilization of borate as well as coexisting radioactive nuclides. To reduce bulky volume of solid residues after co-precipitation, calcination is necessary to investigate the chemical stability of targets. Calcination at 850 degrees C resulted in the high crystalization of HAp with formation of xCaO.B2O3 as a by phase in which x increased with a decrease in the borate contents. After calcination, the lattice parameter a of HAp showed a reentrant curve and c showed a convex curve with an increase in borate contents. A dissolution assay revealed that calcination sometimes increases the borate moiety and that the acceptable B contents in HAp are lower than 1.59mmol/g-calcined HAp. These results imply that during calcination of HAp, some borate is excluded to form the by-phase xCaO.B2O3, which is relatively insoluble in water, but some other fractions might be additionally emitted from the amorphous phase to weakly bind the calcined products. PMID- 29032097 TI - Comparative assessment of the adverse outcome of wastewater effluents by integrating oxidative stress and histopathological alterations in endemic fish. AB - This study evaluated the adverse effect of wastewater effluents on three fish species, Carassius auratus, Zacco platypus, and Zacco koreanus, collected in the Eungcheon, Mihocheon, and Busocheon streams, respectively. Fish gills, liver, and kidneys from the mixing zone (MZ) and sites upstream (US) and downstream (DS) of the MZ were analyzed for oxidative stress responses and histology. Catalase and glutathione S-transferase activity was significantly higher at MZ and DS than from US (p<0.05), indicating induction of antioxidant defense mechanisms. Additionally, degree of tissue changes (DTC) indicated highest histopathological alteration in MZ, followed by DS and US. Integrated biomarker response (IBR) for oxidative stress and histopathological alterations showed higher values consistently for Z. koreanus than other two species. Water temperature, EC, and TN levels seemed to be responsible for the observed biomarker responses. These findings indicate that thermal hot spring effluent discharged into Busocheon steam induced the most significant impact on the cool water species (Z. koreanus). Overall, this study suggests that the IBR index is a very useful tool for monitoring in situ adverse effects of wastewater effluents on fish, particularly for histopathological alterations representing prolonged impact. PMID- 29032099 TI - Roles of hydroxyl and sulfate radicals in degradation of trichloroethene by persulfate activated with Fe2+ and zero-valent iron: Insights from carbon isotope fractionation. AB - Active species including hydroxyl (HO) and sulfate radicals (SO4-) play important roles in contaminant degradation during the persulfate based in-situ chemical oxidation (ISCO) process. The generation and contribution of active species are critical and can potentially be evaluated using compound specific isotope analysis (CSIA). However, the evaluation of stable isotope fractionation (or isotope enrichment factor epsilon values) for contaminants degraded by individual active species of concern is required but lacking. This study firstly determined the carbon isotope fractionation of trichloroethene (TCE) degradation by SO4.- with chemical probe methods to obtain epsilon values from -6.4+/-0.7 to -6.9+/ 0.50/00. The epsilon values were significantly different from those reported for TCE degradation by HO, which could be used to identify the competing TCE degradation by HO and SO4-. Relying on the observed epsilon values and the extended Rayleigh-type equation, the contributions of SO4- and HO to TCE degradation were evaluated in persulfate activated by Fe0 or Fe(II). This study provides an illuminating idea to determine stable isotope fractionation for contaminant degradation by individual active species, which is crucial for the application of CSIA in relevant environments. PMID- 29032100 TI - [Severity of illness index in autoimmune diseases: Have there any usefulness in medical practice?] AB - INTRODUCTION: Assessing disease activity in patients suffering from autoimmune diseases is complex. Symptoms are multiple, often subjective and there are no reliable biomarkers. Many activity scores have been implemented to compare treatment efficacy in clinical trials. Their use in clinical practice is largely unknown. We performed a practical survey to analyze the use of activity scores in clinical practice to consider treatment response and to assess the determinants of their use. METHODS: A sample of French internists answered a questionnaire about activity scores of systemic lupus erythematosus, Sjogren's syndrome, autoimmune myositis and necrotizing vasculitis of small vessels. The frequency of use of these tools, the causes of their non-use, and the general opinion of practitioners about the place of theses scores in current practice were described. RESULTS: The form was completed by 92 internists. Seventy percent of them supported the use of activity scores in consultations, but actually used them in less than 25% of patient visits. The reasons for the low use of these scores are mainly the ignorance of their existence (42%) and their length or complexity (28%). CONCLUSION: The discrepancy between the ratio of practitioners who believe that scores have a place in daily practice and their actual use shows that the current scores do not meet the needs. The implementation of easily usable activity scores in inflammatory diseases remains a challenge for the internists. PMID- 29032101 TI - Mitochondrial activity in T cells. AB - Mitochondria fulfill important and diverse roles during the different stages of T cell adaptive responses. Here we discuss the role of the mitochondria in T cells from the initial steps of activation at the immune synapse to their participation in memory response and T cell exhaustion. Mitochondria are relocated to the immune synapse in order to supply local ATP and to aid calcium signaling. During expansion and proliferation, mitochondrial reactive oxygen species drive proliferation. Aerobic glycolysis, glutaminolysis and fatty acid oxidation regulate the program of differentiation into effector or regulatory T cell subsets, and mitochondrial remodeling proteins are required for the long-lasting phenotype of memory cells. PMID- 29032103 TI - Mast cells in atherosclerotic cardiovascular disease - Activators and actions. AB - Mast cells are potent actors involved in inflammatory reactions in various tissues, including both in the intimal and the adventitial layers of atherosclerotic arteries. In the arterial intima, the site of atherogenesis, mast cells are activated to degranulate, and thereby triggered to release an abundance of preformed inflammatory mediators, notably histamine, heparin, neutral proteases and cytokines stored in their cytoplasmic secretory granules. Depending on the stimulus, mast cell activation may also launch prolonged synthesis and secretion of single bioactive molecules, such as cytokines and derivatives of arachidonic acid. The mast cell-derived mediators may impede the functions of different types of cells present in atherosclerotic lesions, and also compromise the structural and functional integrity of the intimal extracellular matrix. In the adventitial layer of atherosclerotic coronary arteries, mast cells locate next to peptidergic sensory nerve fibers, which, by releasing neuropeptides may activate mast cells to release vasoactive compounds capable of triggering local vasoconstriction. The concerted actions of arterial mast cells have the potential to contribute to the initiation and progression of atherosclerosis, and ultimately to destabilization and rupture of an advanced atherosclerotic plaque with ensuing atherothrombotic complications. PMID- 29032102 TI - Regulation of Ca2+ signaling by acute hypoxia and acidosis in rat neonatal cardiomyocytes. AB - : Ischemic heart disease is an arrhythmogenic condition, accompanied by hypoxia, acidosis, and impaired Ca2+ signaling. Here we report on effects of acute hypoxia and acidification in rat neonatal cardiomyocytes cultures. RESULTS: Two populations of neonatal cardiomyocyte were identified based on inactivation kinetics of L-type ICa: rapidly-inactivating ICa (tau~20ms) myocytes (prevalent in 3-4-day cultures), and slow-inactivating ICa (tau>=40ms) myocytes (dominant in 7-day cultures). Acute hypoxia (pO2<5mmHg for 50-100s) suppressed ICa reversibly in both cell-types to different extent and with different kinetics. This disparity disappeared when Ba2+ was the channel charge carrier, or when the intracellular Ca2+ buffering capacity was increased by dialysis of high concentrations of EGTA and BAPTA, suggesting critical role for calcium-dependent inactivation. Suppressive effect of acute acidosis on ICa (~40%, pH6.7), on the other hand, was not cell-type dependent. Isoproterenol enhanced ICa in both cell types, but protected only against suppressive effects of acidosis and not hypoxia. Hypoxia and acidosis suppressed global Ca2+ transients by ~20%, but suppression was larger, ~35%, at the RyR2 microdomains, using GCaMP6-FKBP targeted probe. Hypoxia and acidosis also suppressed mitochondrial Ca2+ uptake by 40% and 10%, respectively, using mitochondrial targeted Ca2+ biosensor (mito GCaMP6). CONCLUSION: Our studies suggest that acute hypoxia suppresses ICa in rapidly inactivating cell population by a mechanism involving Ca2+-dependent inactivation, while compromised mitochondrial Ca2+ uptake seems also to contribute to ICa suppression in slowly inactivating cell population. Proximity of cellular Ca2+ pools to sarcolemmal Ca2+ channels may contribute to the variability of inactivation kinetics of ICa in the two cell populations, while acidosis suppression of ICa appears mediated by proton-induced block of the calcium channel. PMID- 29032104 TI - Participation of GABAB receptors in cortical postictal excitability in immature rats. AB - Arrest of seizures is due to an active inhibition and is followed in mature brain by period of refractoriness markedly present one min after the end of seizures. To study changes in cortical excitability after epileptic seizures we used electrical stimulation of sensorimotor cortical area in immature rats - 25-day old ones with mature postictal refractoriness and 12-day-old where postictal potentiation of afterdischarges (ADs) is present instead of refractoriness at one minute after the end of the conditioning AD. GABAB receptor antagonist CGP35348 was found to partly suppress postictal refractoriness. In present study not only an antagonist CGP46381 (3 and 10mg/kg i.p.) but also positive allosteric modulator of GABAB receptors CGP7930 (20 and 40mg/kg i.p.) were used to study the role of GABAB receptors in both age groups. They were injected immediately after testing AD and 10min later the two stimulations were repeated. CGP46381 partly antagonized postictal refractoriness in 25-day-old rats but did not significantly affect ADs in 12-day-old animals. CGP7930 did not significantly change ADs duration in either age group. GABAB receptors participate in mechanism of postictal refractoriness but did not play an important role in 12-day-old rats where potentiation instead of refractoriness is present. PMID- 29032105 TI - A comprehensive review on the anti-cancer properties and mechanisms of action of sesamin, a lignan in sesame seeds (Sesamum indicum). AB - Sesamin is the major active ingredient is Sesamum indicum seeds. Several studies revealed that sesamin possesses potent anti-cancer properties. The anti-cancer effects of sesamin have been mainly attributed to its anti-proliferative, pro apoptotic, anti-inflammatory, anti-metastatic, anti- and pro-angiogenic, and pro autophagocytic activities. In this review, we provide a comprehensive summary of the reported anti-cancer effects of sesamin, both in vitro and in vivo. Experimental findings related to the potential of sesamin to attenuate oxidative stress, inflammation, proliferation, metastasis, and angiogenesis in various cancer cells and tumors are analyzed. Studies focusing on the ability of sesamin to induce apoptosis and autophagy in cancer cells are also underscored. Moreover, the molecular mechanisms underlying the anti-cancer effects of sesamin are highlighted, and the major signaling pathways targeted by sesamin are identified. Although the exact signaling events triggered by sesamin in cancer cells are not fully revealed, our analysis indicates that NF-kappaB, STAT3, JNK, ERK1/2, p38 MAPK, PI3K/AKT, caspase-3, and p53 signaling pathways are critically involved in mediating the anti-cancer effects of sesamin. In sum, the experimental evidence suggesting that sesamin could exert potent anti-cancer activities in vitro and in vivo is compelling. Hence, sesamin can potentially be employed as an effective adjuvant therapeutic agent in ameliorating tumor development and progression, and therefore, it could be used in the prevention and/or treatment of various types of cancer. PMID- 29032106 TI - Effect of monoamine oxidase inhibitors on ischaemia/reperfusion-induced acute kidney injury in rats. AB - Increases in renal sympathetic nerve activity during ischaemia and renal venous norepinephrine levels after reperfusion play important roles in the development of ischaemia/reperfusion-induced acute kidney injury. In the present study, we examined the effect of isatin, an endogenous monoamine oxidase inhibitor, on renal venous norepinephrine levels, superoxide production after reperfusion, and ischaemia/reperfusion-induced acute kidney injury. Ischaemia/reperfusion-induced acute kidney injury was accomplished by clamping the left renal artery and vein for 45min, followed by reperfusion, 2 weeks after contralateral nephrectomy. Renal superoxide production and norepinephrine overflow were elevated and significant renal tissue damage was observed following ischaemia/reperfusion injury. Intravenous injection of isatin (10mg/kg) at 5min before ischaemia increased the renal venous plasma norepinephrine level after reperfusion and aggravated ischaemia/reperfusion-induced renal dysfunction and histological damage. The excessive superoxide production after reperfusion was significantly suppressed by isatin administration, indicating that the inhibition of oxidative deamination effectively suppressed superoxide production. These data suggest that the exacerbation effect of isatin is associated, at least in part, with increased norepinephrine levels but not with superoxide production. To the best of our knowledge, this is the first report of isatin involvement in the pathogenesis and/or development of acute kidney injury. PMID- 29032107 TI - Long-term Outcomes of Ocular Surface Stem Cell Allograft Transplantation. AB - PURPOSE: To investigate the long-term outcomes of ocular surface stem cell allograft transplantation (OSST) in patients with total limbal stem cell deficiency (LSCD) owing to various etiologies with a follow-up >= 5 years. DESIGN: Retrospective interventional cohort. METHODS: Setting: Single tertiary referral hospital. STUDY POPULATION: Patients who had (1) presence of total LSCD, (2) surgical treatment with at least 1 allograft OSST procedure, and (3) minimum follow-up >= 5 years after OSST. INTERVENTION: All patients underwent allograft OSST from March 1998 to June 2009. All patients received systemic immunosuppression. MAIN OUTCOME MEASURES: Ocular surface stability, best corrected visual acuity (BCVA). RESULTS: A total of 165 eyes of 110 patients fulfilled the inclusion criteria with a mean follow-up period of 109.22 +/- 35.7 months or approximately 9.1 years (range 5.2-17.7 years). Ocular surface stability was achieved in 72.7% (120/165) of eyes at last follow-up, while 15.2% (25/165) maintained an improved ocular surface and 12.1% (20/165) developed total surface failure. Additional OSST surgery was necessary in 30.9% (51/165 eyes) to maintain a stable ocular surface. There was >= 2 lines BCVA improvement in 62.1%, no change in 7.7%, and a worsened BCVA in 18.6% at last follow-up. CONCLUSIONS: With proper immunosuppression and repeat procedure in case of failure, allograft OSST can provide true long-term ocular surface stability and successful visual outcomes. PMID- 29032108 TI - Pregnancy-induced Changes in Corneal Biomechanics and Topography Are Thyroid Hormone Related. AB - PURPOSE: To identify biomechanical and topographic changes of the cornea during pregnancy and the postpartum period and its association to hormonal changes. DESIGN: Prospective single-center observational cohort study. METHODS: Participants were 24 pregnant women (48 eyes), monitored throughout pregnancy and after delivery. Biomechanical and topographic corneal properties were measured using the Ocular Response Analyzer (ORA) and a Scheimpflug imaging system (Pentacam HR) each trimester and 1 month after delivery. At the same consultations blood plasma levels of estradiol (E2) and thyroid hormones (TSH, T3t, T4t) were also determined. A factorial MANCOVA was used to detect interactions between hormonal plasma levels and ocular parameters. RESULTS: Significant differences in corneal biomechanical and topographic parameters were found during pregnancy in relation to T3t (p = .01), T4t (p < .001), T3t/T4t (P = .001), and TSH (p = .001) plasma levels. E2 plasma levels (p = .092) and time period of measurement (p = .975) did not significantly affect corneal parameters. TSH levels significantly affected the maximal keratometry reading (p = .036), the vertical keratometry reading (p = .04), and the index of height asymmetry (p = .014). Those results persist after excluding hypothyroidism patients from the statistical analysis. CONCLUSIONS: Hormonal changes affecting corneal biomechanics and topography during pregnancy could be thyroid related. Dysthyroidism may directly influence corneal biomechanics and represents a clinically relevant factor that needs further investigation. PMID- 29032109 TI - Early Response to Intravitreal Dexamethasone Implant Therapy in Diabetic Macular Edema May Predict Visual Outcome. AB - PURPOSE: To determine whether early visual acuity response to intravitreal dexamethasone implant therapy in diabetic macular edema (DME) is associated with long-term outcome. DESIGN: Retrospective case series. METHODS: Multicenter (8 sites) retrospective review of medical records of eyes with DME treated with 0.7 mg intravitreal dexamethasone implant and minimum 18-month follow-up. One hundred and two eyes were included. Eyes with vitreoretinal interface abnormalities or that had undergone vitrectomy were excluded. Eyes were categorized into 3 groups based on change in best-corrected visual acuity (BCVA) at 3 months (logMAR equivalence of <5-letter, 5-9-letter, or >=10-letter gain). Visual acuity outcomes were determined for each early response group. The relationship between early (3-month) and overall change in BCVA was assessed using regression analysis. RESULTS: In the study population (102 eyes), <5-letter, 5- to 9-letter, and >=10-letter BCVA improvements were seen in 44.1%, 18.6%, and 37.3% of eyes, respectively, at 3 months. Among suboptimal (<5-letter) responders at 3 months, 6.7% showed >=10-letter gains at study conclusion compared to 29% in the robust (>=10-letter) early response group (P = .009). Change in BCVA at 3 months showed significant positive correlation with overall change in BCVA (coefficient = 0.44, P = .002). CONCLUSIONS: A similar proportion of eyes demonstrated suboptimal (<5 letter) and robust (>=10-letter) early response to treatment at 3 months. Eyes with a robust early response demonstrated >=10-letter long-term gain in BCVA at a significantly higher rate compared to those with poor early response. Early treatment response directly correlated with overall change in BCVA. PMID- 29032110 TI - Use of Donors Predisposed by Corneal Collagen Cross-linking in Penetrating Keratoplasty for Treating Patients With Keratoconus. AB - PURPOSE: To investigate whether use of donors predisposed by corneal collagen cross-linking (CXL) reduced myopic refractive errors for keratoconic eyes after penetrating keratoplasty (PK). DESIGN: Randomized controlled trial. METHODS: One hundred sixteen eyes of 116 patients with keratoconus from Zhongshan Ophthalmic Center were enrolled. Using stratified block randomization, we assigned eligible eyes to the CXL graft group (Group 1) or conventional graft group (Group 2). Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent (SE), and topographic data were compared 12, 24, and 36 months after surgery. RESULTS: Group 1 had better UDVA and CDVA than Group 2 after 1 year follow-up. Also, Group 1 had a lesser degree of SE and lower manifest cylinder than Group 2. At 3 years follow-up, mean CDVA was 0.17 +/- 0.10 logarithm of the minimum angle of resolution (logMAR) in Group 1 vs 0.23 +/- 0.12 logMAR in Group 2 (P = .004). Mean SE was -3.50 +/- 2.93 diopter (D) in Group 1 and -4.02 +/- 2.57 D in Group 2 (P = .034). Mean manifest cylinder was -5.22 +/- 2.64 D and -6.35 +/- 2.80 D in Group 1 and Group 2, respectively (P = .013). At 3 years follow-up, simulated keratometry in the steepest meridian (Kmax) was 46.85 +/- 2.85 D vs 49.37 +/- 2.92 D (P = .036); corneal power was 44.41 +/- 2.89 D vs 46.35 +/- 2.87 D (P = .001); and keratometric astigmatism was 4.53 +/- 1.06 D vs 5.98 +/- 1.28 D (P < .001) in Group 1 and Group 2, respectively. CONCLUSIONS: Use of donors predisposed by CXL could reduce topographic readings after PK for the treatment of keratoconus, and consequently reduce myopic refractive errors and improve visual acuity. PMID- 29032111 TI - Paranormal belief and errors of probabilistic reasoning: The role of constituent conditional relatedness in believers' susceptibility to the conjunction fallacy. AB - The present study examines the extent to which stronger belief in either extrasensory perception, psychokinesis or life-after-death is associated with a proneness to making conjunction errors (CEs). One hundred and sixty members of the UK public read eight hypothetical scenarios and for each estimated the likelihood that two constituent events alone plus their conjunction would occur. The impact of paranormal belief plus constituents' conditional relatedness type, estimates of the subjectively less likely and more likely constituents plus relevant interaction terms tested via three Generalized Linear Mixed Models. General qualification levels were controlled for. As expected, stronger PK beliefs and depiction of a positively conditionally related (verses conditionally unrelated) constituent pairs predicted higher CE generation. ESP and LAD beliefs had no impact with, surprisingly, higher estimates of the less likely constituent predicting fewer - not more - CEs. Theoretical implications, methodological issues and ideas for future research are discussed. PMID- 29032113 TI - Accelerating with the brakes on? PMID- 29032112 TI - Dermal pharmacokinetics of pyrazinamide determined by microdialysis sampling in rats. AB - Studies have demonstrated the efficacy of pyrazinamide (PZA) against stages of the Leishmania parasite that causes cutaneous leishmaniasis. Although PZA is widely distributed in most body fluids and tissues, the amount of drug reaching the skin is unknown. This study aimed to investigate the pharmacokinetics of PZA in rat dermal tissue by dermal microdialysis. Skin pharmacokinetics was assessed by implanting a linear microdialysis probe in the dermis of ten rats. In addition, blood samples were collected to assess plasma pharmacokinetics. Unbound microdialysate (N = 280) and plasma (N = 120) concentrations following single intravenous doses of 25 mg/kg or 50 mg/kg PZA were quantified by a validated HPLC method. Probe calibration was performed by retrodialysis. Non-compartmental analysis and non-linear mixed-effects modelling were performed using WinNonlin and NONMEM v.7.3. PZA rapidly permeated into the dermis and reached high levels, with mean maximum concentrations (Cmax) of 22.4 +/- 7.1 ug/mL and 48.6 +/- 17.3 ug/mL for the two doses studied. PZA showed significant distribution to the skin (fAUCdermal/fAUCplasma = 0.82 +/- 0.31 and 0.84 +/- 0.25 for 25 mg/kg and 50 mg/kg doses, respectively). Active unbound concentrations in dermal tissue reached lower levels than free plasma concentrations, indicating that free PZA levels in plasma were in equilibrium with tissue levels. These results showed equivalent unbound drug tissue concentrations and corresponding unbound plasma levels. This study shows that PZA distributes rapidly into dermal interstitial fluid space in rats and therefore may be a potential agent in the treatment of cutaneous leishmaniasis. PMID- 29032114 TI - Epigallocatechin-3-gallate reduces the proliferation of benign prostatic hyperplasia cells via regulation of focal adhesions. AB - AIMS: Benign prostatic hyperplasia (BPH) is the most common urological disease that is characterized by the excessive growth of prostatic epithelial and stromal cells. Pharmacological therapy for BPH has limited use due to the many side effects so there is a need for new agents including natural compounds such as epigallocatechin-3-gallate (EGCG). This study was undertaken to assess the role of EGCG, suppressing the formation of BPH by reducing inflammation and oxidative stress, in cytoskeleton organization and ECM interactions via focal adhesions. MAIN METHODS: We performed MTT assay to investigate cell viability of BPH-1 cells, wound healing assay to examine cell migration, immunofluorescence assay for F-actin organization and paxillin distribution and finally immunoblotting to investigate focal adhesion protein levels in the presence and absence of EGCG. KEY FINDINGS: We found that EGCG inhibits cell proliferation at the concentration of 89.12MUM, 21.2MUM and 2.39MUM for 24, 48 and 72h, respectively as well as inhibitory effects of EGCG on BPH-1 cell migration were observed in a wound healing assay. Furthermore, it was determined by immunofluorescence labeling that EGCG disrupts F-actin organization and reduces paxillin distribution. Additionally, EGCG decreases the activation of FAK (Focal Adhesion Kinase) and the levels of paxillin, RhoA (Ras homolog gene family, member A), Cdc42 (cell division cycle 42) and PAK1 (p21 protein-activated kinase 1) in a dose-dependent manner. SIGNIFICANCE: For the first time, by this study, we found evidence that BPH-1 cell proliferation could be inhibited with EGCG through the disruption of cytoskeleton organization and ECM interactions. Consequently, EGCG might be useful in the prevention and treatment of diseases characterized by excessive cell proliferation such as BPH. PMID- 29032115 TI - Toll-like receptor 4 (TLR4) impairs nitric oxide contributing to Angiotensin II induced cavernosal dysfunction. AB - AIM: Angiotensin II (AngII), a corpus cavernosum (CC) constrictor peptide, modulates Toll like receptor (TLR) expression, a key element of the innate immune system, contributing to impaired vascular function in pathological conditions. However, it is unknown whether TLR4 is involved in AngII-induced erectile dysfunction. In this study, we investigated whether TLR4 plays a role in cavernosal dysfunction caused by AngII upregulation. MATERIAL AND METHODS: Cavernosal smooth muscle cells (CSMC) from C57/BL6 mice were treated with AngII (0.1MUM) or bacterial LPS (50ng/ml) for 12-24h and TLR4 expression was assessed. Mice were infused with AngII (90ng/min, 28days) and treated with anti-TLR4 antibody (0.1mg/daily, i.p.) for the last 14days of the treatment. CC tissue was used for functional studies and for Western blotting. Nitric Oxide Synthase (NOS) activity was measured by conversion of [3H]-l-arginine to [3H]-l-citrulline, systemic TNF-alpha levels by ELISA, and reactive oxygen species (ROS) by immunofluorescence. KEY FINDINGS: We report upregulation of TLR4 in CSMC following AngII or LPS stimulation. In AngII-infused mice, chronic treatment with anti-TLR4 antibody (28+/-2.1%) attenuates adrenergic CC contraction, which also ameliorates nitrergic (68.90+/-0.21 vs. 51.07+/-0.63, 8Hz, AngII-infused mice treated vs. non-treated). Decreased endothelial NOS expression, reduced NOS activity, and augmented levels of TNF-alpha, and ROS were found following AngII infusion. These alterations were prevented, or at least decreased by anti-TLR4 antibody treatment. SIGNIFICANCE: Inhibition of TLR4 ameliorates AngII-impaired cavernosal relaxation, decreases TNF-alpha levels, and restores NO bioavailability, demonstrating that TLR4 partly mediates AngII-induced cavernosal dysfunction. PMID- 29032116 TI - Mechanisms of action for alpha1-adrenoceptor blockers in storage symptoms with new insights into the micturition reflex. AB - Elderly patients suffering from lower urinary tract symptoms with benign prostatic hyperplasia (BPH) are widely prescribed alpha1-adrenoceptor blockers (alpha1-blockers) to improve voiding and storage symptoms. The mechanism of action for improvements in voiding symptoms is well understood; tonus of the urethra and prostate are decreased and urinary flow rate is increased by alpha1 blockers. However, the mechanisms underlying storage symptoms have remained unclear, although detrusor hyperactivity has been identified as a significant factor. Previous investigations have yielded informative results, such as amelioration of reduced blood flow and afferent C-fiber activation, and the importance of the urothelium. Recently, the fascinating role of alpha1A- and alpha1D-adrenoceptor subtypes have been investigated for bladder function. Furthermore, the scope of this pathology covers both the bladder and that part of the central nervous system related to the micturition reflex. This review describes the beneficial effects of alpha1-blockers on storage symptoms and the pathogenesis of storage symptoms related to BPH, discusses the mechanisms of action for alpha1-blockers with reference to results from cystometry to suggest improvements in management that suppress detrusor hyperactivity, and examines the potential influence of alpha1A- and alpha1D-adrenoceptor subtypes on bladder activity. PMID- 29032118 TI - The Emboldened Medical Student:Ethical Dilemmas in a University Clinic. PMID- 29032117 TI - Protective effects of Salvia miltiorrhiza on adenine-induced chronic renal failure by regulating the metabolic profiling and modulating the NADPH oxidase/ROS/ERK and TGF-beta/Smad signaling pathways. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Chronic renal failure (CRF) is defined as a progressive and irreversible loss of renal function and associated with inflammation and oxidative stress. Salvia miltiorrhiza (SM) is an important Chinese herb used in traditional Chinese medicine for treating cardiovascular diseases. The previous studies showed the SM exhibited significant protective effects on CRF. In this present study, the metabolic profiling changes and action mechanism of SM on CRF were explored. AIMS OF THE STUDY: The aims of this study were to illustrate the metabolic profiling changes of adenine induced CRF and analyze the protective effects and action mechanisms of SM ethanol extract (SMEE) and water extract (SMWE). MATERIALS AND METHODS: The animals were divided into normal group, CRF model group, Huangkui capsule-treated group, SMEE-treated group and SMWE-treated group. The UPLC-QTOFMS coupled with multivariate statistical methods were used to explore the changes of metabolic profile in plasma, urine and renal tissue from CRF rats simultaneously after treatment with SMEE and SMWE. Hematoxylin eosin (HE) staining and Masson staining were applied to observe pathological changes in renal tissue. Biochemical indicators including serum urea nitrogen (BUN), urine protein (UP) and serum creatinine (Scr) were measured according to the manufacturer's instructions of kits. Furthermore, HK-2 cell damaged model induced by ISF was established to access the protective effects and action mechanism. The dichlorodihydrofluorescein diacetate (DCFH-DA) assay was used to determine the reactive oxygen species (ROS) and Western blot was applied to analyze the expression of pathogenesis-related proteins in different groups. RESULTS: The results showed that the ethanol extract (SMEE) and water extract (SMWE) of SM significantly inhibited the elevation of serum creatinine (Scr), blood urea nitrogen (BUN), urine protein (UP) and indoxyl sulfate (ISF) in adenine-induced CRF rats, especially SMEE exhibited more significant effects. Moreover, SM extracts obviously improved the symptoms of glomerular and tubular atrophy, focal calcium deposits, interstitial fibrosis, interstitial inflammation, and renal tissues. By metabolomics analysis, fifty-nine metabolites (thirteen in plasma, twenty-seven in urine and nineteen in kidney tissue) were up regulated or down-regulated and contributed to CRF progress. After treatment of SM extracts, the altered metabolites were restored back to normal level. These potential biomarkers underpinning the metabolic pathways are including phenylalanine metabolism, pyrimidine metabolism, purine metabolism and tryptophan metabolism. Furthermore, SM extracts prevent epithelial-mesenchymal transition (EMT) of human renal tubular epithelial (HK-2) cell by inhibiting NADPH oxidase/ROS/ERK and TGF-beta/Smad signaling pathways. CONCLUSIONS: SMEE and SMWE can significantly alleviate adenine-induced CRF via regulation of the metabolic profiling and modulation of NADPH oxidase/ROS/ERK and TGF-beta/Smad signaling pathways, which provided important supports for the development of protective agent of SM for CRF. PMID- 29032119 TI - A systematic review of the safety and efficacy of systemic corticosteroids in atopic dermatitis. AB - BACKGROUND: Systemic corticosteroids are often used to treat atopic dermatitis (AD). However, few studies have assessed the safety and efficacy of systemic corticosteroids in AD. OBJECTIVE: To systematically review the literature on efficacy and safety of systemic corticosteroid use (oral, intramuscular, and intravenous) in AD. METHODS: PubMed, Embase, Medline, Scopus, Web of Science, and Cochrane Library were searched. We included systematic reviews, guidelines, and treatment reviews of systemic corticosteroid use among patients of all ages with a diagnosis of AD (52 reviews and 12 studies). RESULTS: There was general consensus in the literature to limit the use of systemic steroids to short courses as a bridge to steroid-sparing therapies. Systemic side effects include growth suppression in children, osteoporosis, osteonecrosis, adrenal insufficiency, Cushing syndrome, hypertension, glucose intolerance, diabetes, gastritis, gastroesophageal reflux, peptic ulcer disease, weight gain, emotional lability, behavioral changes, opportunistic infections, cataracts, glaucoma, myopathy, myalgia, dysaesthesia, pseudotumor cerebri, hyperlipidemia, malignancy, thrombosis, skin atrophy, sleep disturbance, and rebound flaring. LIMITATIONS: Baseline clinical severity, corticosteroid delivery and dose, and treatment response were reported incompletely and heterogeneously across studies. CONCLUSIONS: Evidence is not strong enough to determine optimal delivery or duration of systemic corticosteroids in AD. PMID- 29032120 TI - The ethical conundrum of supervising physician assistants at a distant site. PMID- 29032121 TI - "Arrow" mark for orientation in paramedian forehead flap. PMID- 29032122 TI - RIFM fragrance ingredient safety assessment, cis-3-octen-1-ol, CAS Registry Number 20125-84-2. PMID- 29032123 TI - RIFM fragrance ingredient safety assessment, 3-hexen-1-ol (isomer unspecified), CAS Registry Number 544-12-7. PMID- 29032124 TI - RIFM fragrance ingredient safety assessment, 2,2,5-trimethyl-5 pentylcyclopentanone, CAS Registry Number 65443-14-3. PMID- 29032125 TI - RIFM fragrance ingredient safety assessment, tetrahydro-4-methyl-2-(2 methylpropen-1-yl)pyran, CAS Registry Number 16409-43-1. PMID- 29032127 TI - Associations between Posture, Voice, and Dysphonia: A Systematic Review. AB - OBJECTIVE: The study aimed to systematize the associations between posture, voice, and dysphonia in order to support future research directions and possible clinical interventions. STUDY DESIGN: The study is a systematic review. METHODS: According to the Preferred Reporting Items for Systematic Reviews and Meta Analyses flowchart, a search on PubMed/Medline, SciELO, RCAAP, LILACS, Cochrane Library, PEDro, and Isi Web of Knowledge was performed from their inception through January of 2017 using the key words "posture" and ("voice" or "dysphonia"). The inclusion criteria were full-text journal articles in French, English, Portuguese, or Spanish, exploring the relationship between posture and voice or dysphonia, in adult human beings. The exclusion criteria coupled treatments for voice disorders, literature reviews and meta-analyses, case studies, opinion articles, and studies linking breathing with posture without assessing voice. Studies were analyzed using a modified version of the Newcastle Ottawa Scale (NOS). RESULTS: Twelve papers met the inclusion criteria with high methodological quality through the NOS. The review shows that a correct posture is necessary for an efficient voice production; however, the relation between dysphonia and posture seems to be contradictory. CONCLUSION: An effective posture allows a subject in a static posture or while moving to more easily shift the tension between muscles, allowing for a free movement of the larynx without blockages and with benefits to voice production. PMID- 29032128 TI - Effectiveness of the Teacher's Vocal Health Program (TVHP) in the Municipal Education Network of Campo Grande, MS. AB - OBJECTIVE: This study aimed to implement and evaluate the effectiveness of the Teacher's Vocal Health Program in the Municipal Education Network in Campo Grande, MS, in the 2016 school year so as to reduce or extinguish the high prevalence of vocal symptoms among teachers. METHODS: This is an experimental research with convenience sampling of 48 teachers presenting with vocal symptoms. The Vocal Symptoms Scale was used to collect data, which according to the criteria of the Scientific Advisory Committee of the Medical Outcomes Trust, present proved psychometric properties and is specific to evaluate individuals with vocal alterations. The proposed Vocal Program is considered as a brief intervention one (3 months) and consists of qualification or instruction, as well as application of 5 daily vocal techniques and is controlled through individual monitoring spreadsheets. RESULTS: The total score average had statistically significant reduction in the experimental group when compared with the control group, which represents a positive effect concerning the program adhesion. The fact that there was no nullity in the subscales (limitations, physical, emotional) means that even submitted to the intervention, the teachers still present with vocal symptoms. CONCLUSION: Teacher's Vocal Health Program represents an effective Vocal Health Program model for the teachers. PMID- 29032126 TI - Weekly follow up of acute lesions in three early multiple sclerosis patients using MR spectroscopy and diffusion. AB - OBJECT: Pathophysiological mechanisms underlying multiple sclerosis (MS) lesion formation, including inflammation, demyelination/remyelination and axonal damage, and their temporal evolution are still not clearly understood. To this end, three acute white matter lesions were monitored using a weekly multimodal magnetic resonance (MR) protocol. MATERIALS AND METHODS: Three untreated patients with early relapsing-remitting MS and one healthy control subject were followed weekly for two months. MR protocol included conventional MR imaging (MRI), diffusion tensor imaging (DTI), and localized MR spectroscopy (MRS), performed on the largest gadolinium-enhancing lesion, selected at the first exam. RESULTS: Mean diffusivity increased and fractional anisotropy decreased in lesions compared to healthy control. Cho/Cr ratios remained elevated in lesions throughout the follow up. In contrast, temporal profiles of mI/Cr ratios varied between patients' lesions. For patient 1, mI/Cr ratios were already elevated at the beginning of the follow-up. Patients 2 and 3 ratios increase was delayed by two and five weeks. Blood-brain barrier (BBB) recovery occurred after three weeks. CONCLUSION: This multimodal MR follow-up highlighted the complementary role of DTI and MRS in identifying temporal relationships between BBB disruption, inflammation, and demyelination. Diffusion metrics showed high sensitivity to detect inflammatory processes. The different temporal profiles of mI suggested a potential better specificity to monitor pathological mechanisms occurring after lesion formation, such as glial proliferation and remyelination. PMID- 29032129 TI - Linear Measurements of Vocal Folds and Laryngeal Dimensions in Freshly Excised Human Larynges. AB - INTRODUCTION: Understanding the morphology of the larynx, one of the most complex organs of the human body, is an important step toward understanding the detailed laryngeal anatomy, and physiology. Different studies have described the linear measurements of the larynx in different measuring methods, but no studies have been structured to describe vocal fold length in freshly excised larynges. OBJECTIVES: The aim of this study was to describe exact anatomical measurements of vocal folds and some laryngeal structures in freshly excised larynges, and to compare such measurements between males and females. This can help improve the diagnostic and therapeutic procedures in the laryngology field. SUBJECTS AND METHODS: This study was applied on 21 patients having different types of laryngeal carcinoma: 11 males and 10 females with the age range 41-75 years old. Every patient was assessed using laryngeal endoscopy and photography, and the length of the membranous vocal fold was measured using a millimeter-graded ruler that was photographed with focus with the same magnification used in the video laryngoscopy of the glottis. Then patients were exposed to total laryngectomy, and excised larynges were used for a direct measuring of the membranous and cartilaginous vocal folds. Then measures of men and women were compared statistically. Measures of excised larynges were also compared with those of the video endoscopy using a video-printed ruler. CONCLUSION: Freshly excised larynges can be used for accurate quantitative measuring of the vocal fold length and laryngeal dimensions. There are considerable differences in all measured dimensions between males and females. PMID- 29032130 TI - Nonmedical Treatments of Vocal Fold Nodules: A Systematic Review. AB - OBJECTIVES: The aim of the present systematic review was to investigate the nonmedical treatments of vocal fold nodules (VFNs). STUDY DESIGN: The present study is a systematic review. METHODS: The following electronic databases were searched from inception until August 2016: PubMed, Scopus, ScienceDirect, Ovid, ISI (Web of Sciences), Cochrane, PsychINFO, The Cochrane Central Register of Controlled Trials, and Google Scholar. Reference lists of included articles were evaluated for additional data. Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines were used to carry out and report the review. The methodological quality of the articles included was evaluated using the Physiotherapy Evidence Database scale. Due to the heterogeneity of the studies, a narrative synthesis of the evidence was performed to summarize the evidence. RESULTS: Out of 2,099 records identified, 21 articles met the inclusion criteria and thus were included in the review. The studies investigated in the present review were different in terms of study design, participant characteristics, types of assessments and treatments, and treatment delivery. However, nonmedical treatments of VFNs were found to be successful in improving vocal quality, decreasing VFN sizes, and resolving these nodules. CONCLUSIONS: The results of the present review could provide primary evidence related to the effectiveness of nonmedical treatment of VFNs. Yet further studies with a high level of evidence, a rigorous methodological quality, and long-term follow-up evaluations are required to make stronger claims. PMID- 29032131 TI - Association Between Type 2 Diabetes and All-Cause Hospitalization and Mortality in the UK General Heart Failure Population: Stratification by Diabetic Glycemic Control and Medication Intensification. AB - OBJECTIVES: This study sought to investigate in the general heart failure (HF) population, whether the associations between type 2 diabetes (T2D) and risk of hospitalization and death, are modified by changing glycemic or drug treatment intensity. BACKGROUND: In the general HF population, T2D confers a higher risk of poor outcomes, but whether this risk is modified by the diabetes status is unknown. METHODS: A nested case-control study in an incident HF database cohort (2002 to 2014) compared patients with T2D with those without for risk of all cause first hospitalization and death. T2D was stratified by categories of glycosylated hemoglobin (HbA1c) or drug treatments measured 6 months before hospitalization and 1 year before death and compared with the HF group without T2D. RESULTS: In HF, T2D was associated with risk of first hospitalization (adjusted odds ratio [aOR]: 1.29; 95% confidence interval [CI]: 1.24 to 1.34) and mortality (aOR: 1.24; 95% CI: 1.29 to 1.40). Stratification of T2D by HbA1c levels, compared with the reference HF group without T2D, showed U-shaped associations with both outcomes. Highest risk categories were HbA1c >9.5% (hospitalization, aOR: 1.75; 95% CI: 1.52 to 2.02; mortality, aOR: 1.30; 95% CI: 1.24 to 1.47) and <5.5% (hospitalization, aOR: 1.42; 95% CI: 1.12 to 1.80; mortality, aOR: 1.29; 95% CI: 1.10 to 1.51, respectively). T2D group with change in HbA1c of >1% decrease was associated with hospitalization (aOR: 1.33; 95% CI: 1.18 to 1.49) and mortality (aOR: 1.36; 95% CI: 1.24 to 1.48). T2D drug group associations with hospitalization were no medication (aOR: 1.12; 95% CI: 1.04 to 1.19), oral antihyperglycemic only (aOR: 1.34; 95% CI: 1.27 to 1.41), oral antihyperglycemic+insulin (aOR: 1.36; 95% CI: 1.21 to 1.52), and insulin only (aOR: 1.61; 95% CI: 1.43 to 1.81); and with mortality for the same drug groups were 1.31 (95% CI: 1.23 to 1.39), 1.16 (95% CI: 1.11 to 1.22), 1.19 (95% CI: 1.06 to 1.34), and 1.43 (95% CI: 1.31 to 1.57), respectively. The T2D group with reduced drug treatments were associated with hospitalization (aOR: 2.13; 95% CI: 1.68 to 2.69) and mortality (aOR: 2.09; 95% CI: 1.81 to 2.41). CONCLUSIONS: In the general HF population, T2D stratified by glycemic control and drug treatments showed differential risk associations. Routine measures of dynamic diabetes status provide important prognostic indication of poor outcomes in HF. PMID- 29032133 TI - Heart Rate in Preserved Ejection Fraction Heart Failure. PMID- 29032132 TI - Prognostic Importance of Temporal Changes in Resting Heart Rate in Heart Failure and Preserved Ejection Fraction: From the TOPCAT Study. AB - OBJECTIVES: The aim of this study was to examine the relationship between baseline heart rate (HR), change in HR from a preceding visit, and time-updated HR with subsequent outcomes in patients with heart failure with preserved ejection fraction (HFpEF) in the TOPCAT (Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist) trial. BACKGROUND: Higher resting HR and increase in HR over time in patients with heart failure are associated with adverse outcomes. Whether these relationships between HR and prognosis are also observed in patients with HFpEF requires further assessment. METHODS: In 1,767 patients enrolled in the TOPCAT trial from the Americas, the associations between baseline resting HR and change in HR from the preceding visit and clinical outcomes were examined using Cox proportional hazards models, along with the association between HR at each visit and outcome. RESULTS: Both baseline HR (adjusted hazard ratio: 1.08; 95% confidence interval: 1.04 to 1.12) and change in HR from the preceding visit (adjusted hazard ratio: 1.09; 95% confidence interval: 1.05 to 1.14; p < 0.001 per 5 beats/min higher HR), after adjusting for covariates, were associated with a higher risk for the primary endpoint of cardiovascular death, hospitalization for HF, or aborted cardiac arrest. Time updated resting HR at each visit was also associated with risk (adjusted hazard ratio: 1.11; 95% confidence interval: 1.07 to 1.15; p < 0.001 per 5 beats/min higher HR). Furthermore, a rise in resting HR of approximately 10 beats/min, beginning approximately 10 days prior to the primary endpoint, was observed. CONCLUSIONS: Baseline resting HR and change in HR over time predict outcomes in patients with HFpEF, as does time-updated HR during follow-up. These data suggest that frequent outpatient monitoring of HR, possibly with remote technologies, may identify patients with HFpEF who may be at increased risk for rehospitalization or death. PMID- 29032134 TI - Left Ventricular Filling Pressures in Heart Failure With Preserved Ejection Fraction: Is the Tail Now Wagging the Dog? PMID- 29032135 TI - Glucose-Lowering Therapies in Patients With Concomitant Diabetes Mellitus and Heart Failure: Finding the "Sweet Spot". PMID- 29032136 TI - A Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial of the Efficacy and Safety of the Oral Soluble Guanylate Cyclase Stimulator: The VICTORIA Trial. AB - This trial sought to evaluate whether vericiguat, a novel oral soluble guanylate cyclase (sGC) stimulator, was superior to placebo, on a background of standard of care, in increasing the time to the first occurrence of the composite endpoints of cardiovascular (CV) death and heart failure (HF) hospitalization in patients with HF with reduced ejection fraction (HFrEF). Deficiency in sGC-derived cyclic guanosine monophosphate (cGMP) causes both myocardial dysfunction and impaired endothelium-dependent vasomotor regulation that includes the myocardial microcirculation. Experimental studies have suggested multiple potential benefits of sGC stimulators including prevention, or even reversal, of left ventricular hypertrophy and fibrosis, as well as reduction of ventricular afterload through both systemic and pulmonary vasodilation. Hence, restoration of sufficient nitric oxide (NO)-sGC-cGMP signaling has been proposed as an important treatment target in HF. Vericiguat has been shown to directly stimulate sGC and enhance sGC sensitivity to endogenous NO. Available phase IIb data in HFrEF patients indicate vericiguat is safe and well-tolerated, and exploratory analyses indicate that it results in a dose-dependent, clinically significant reduction in N-terminal pro-B type natriuretic peptide (NT-proBNP) at the highest tested dose. VICTORIA (Vericiguat Global Study in Subjects With Heart Failure With Reduced Ejection Fraction) is a randomized, placebo-controlled, parallel group, multicenter, double-blind, event-driven phase 3 trial of vericiguat in subjects with HFrEF. Approximately 4,872 subjects will be randomized to evaluate the efficacy and safety of vericiguat compared with placebo on a background of standard of care. After a screening phase of up to 30 days, eligible subjects will be treated until the required number of cardiovascular deaths is observed. The estimated median follow-up duration is approximately 18 months. All subjects will be followed until study completion to assess for the occurrence of endpoint events. VICTORIA will establish the efficacy and safety of vericiguat on cardiovascular death and HF hospitalization in patients with HFrEF. (A Randomized Parallel-Group, Placebo Controlled, Double-Blind, Event-Driven, Multi-Center Pivotal Phase III Clinical Outcome Trial of Efficacy and Safety of the Oral sGC Stimulator Vericiguat in Subjects With Heart Failure With Reduced Ejection Fraction [HFrEF]-VerICiguaT Global Study in Subjects With Heart Failure With Reduced Ejection Fraction [VICTORIA]; NCT02861534). PMID- 29032137 TI - The Risks and Benefits of Moderate Alcohol Consumption: There Remains Much to Learn. PMID- 29032138 TI - Wedge Pressure Rather Than Left Ventricular End-Diastolic Pressure Predicts Outcome in Heart Failure With Preserved Ejection Fraction. AB - OBJECTIVES: This study sought to compare the prognostic power of left ventricular end-diastolic pressure (LVEDP) and pulmonary arterial wedge pressure (PAWP) in heart failure with preserved ejection fraction (HFpEF). BACKGROUND: It is broadly accepted that direct measurement of LVEDP in HFpEF more robustly reflects left ventricular hemodynamics than PAWP. METHODS: A total of 173 consecutive HFpEF patients were prospectively enrolled. Of these, 152 patients fulfilled registry inclusion criteria. Study participants underwent clinical evaluation, lung function tests, echocardiography, cardiac magnetic resonance, coronary angiography, and invasive hemodynamic assessments with PAWP and LVEDP measurements in 1 procedure. The study endpoint was defined as hospitalization for heart failure or cardiac death. RESULTS: A modest pressure difference (2.0 +/ 4.4 mm Hg) was observed between PAWP (21.5 +/- 5.6 mm Hg) and LVEDP (19.5 +/- 5.2 mm Hg) at baseline. After a mean follow-up of 23.5 +/- 21.3 months, PAWP was predictive of outcome (p = 0.010), whereas LVEDP was not (p = 0.261) by Kaplan Meier curves. By multivariate regression analysis, diffusion capacity of carbon monoxide (DLCO) was the only parameter that was independently related to the pressure difference between PAWP and LVEDP. When patients were stratified according to DLCO between <=45% and >45%, those in the low DLCO group were found to have a more pronounced pressure drop between PAWP and LVEDP (3.1 +/- 4.8 mm Hg vs. 0.8 +/- 3.8 mm Hg, respectively; p = 0.031) and to be in more advanced disease stages. CONCLUSIONS: Our data indicate that PAWP but not LVEDP is associated with outcome in HFpEF. A more pronounced difference between PAWP and LVEDP and more advanced disease is found in patients with low DLCO. PMID- 29032139 TI - Effects of Vildagliptin on Ventricular Function in Patients With Type 2 Diabetes Mellitus and Heart Failure: A Randomized Placebo-Controlled Trial. AB - OBJECTIVES: This study sought to examine the safety of the dipeptidyl peptidase-4 inhibitor, vildagliptin, in patients with heart failure and reduced ejection fraction. BACKGROUND: Many patients with type 2 diabetes mellitus have heart failure and it is important to know about the safety of new treatments for diabetes in these individuals. METHODS: Patients 18 to 85 years of age with type 2 diabetes and heart failure (New York Heart Association functional class I to III and left ventricular ejection fraction [LVEF] <0.40) were randomized to 52 weeks treatment with vildagliptin 50 mg twice daily (50 mg once daily if treated with a sulfonylurea) or matching placebo. The primary endpoint was between treatment change from baseline in echocardiographic LVEF using a noninferiority margin of -3.5%. RESULTS: A total of 254 patients were randomly assigned to vildagliptin (n = 128) or placebo (n = 126). Baseline LVEF was 30.6 +/- 6.8% in the vildagliptin group and 29.6 +/- 7.7% in the placebo group. The adjusted mean change in LVEF was 4.95 +/- 1.25% in vildagliptin treated patients and 4.33 +/- 1.23% in placebo treated patients, a difference of 0.62 (95% confidence interval [CI]: -2.21 to 3.44; p = 0.667). This difference met the predefined noninferiority margin of -3.5%. Left ventricular end-diastolic and end-systolic volumes increased more in the vildagliptin group by 17.1 ml (95% CI: 4.6 to 29.5 ml; p = 0.007) and 9.4 ml (95% CI: -0.49 to 19.4 ml; p = 0.062), respectively. Decrease in hemoglobin A1c from baseline to 16 weeks, the main secondary endpoint, was greater in the vildagliptin group: -0.62% (95% CI: -0.93 to -0.30%; p < 0.001; -6.8 mmol/mol; 95% CI: -10.2 to -3.3 mmol/mol). CONCLUSIONS: Compared with placebo, vildagliptin had no major effect on LVEF but did lead to an increase in left ventricular volumes, the cause and clinical significance of which is unknown. More evidence is needed regarding the safety of dipeptidyl peptidase-4 inhibitors in patients with heart failure and left ventricular systolic dysfunction. (Effect of Vildagliptin on Left Ventricular Function in Patients With Type 2 Diabetes and Congestive Heart Failure; NCT00894868). PMID- 29032140 TI - Heart Failure With Mid-Range (Borderline) Ejection Fraction: Clinical Implications and Future Directions. AB - Heart failure (HF) with borderline ejection fraction was first defined in 2013 in the American College of Cardiology/American Heart Association guidelines as the presence of the typical symptoms of HF and a left ventricular ejection fraction (LVEF) of 41% to 49%. In 2016, the European Society of Cardiology specified HF with mid-range ejection fraction (HFmrEF) as LVEF of 40% to 49%. This range of LVEF is less well studied compared with HF with preserved ejection fraction (HFpEF) and HF with reduced ejection fraction (HFrEF). Although there are effective, guideline-directed medical therapies for patients with HFrEF, no therapies thus far show measurable benefit in HFpEF. Patients with HFmrEF have a clinical profile and prognosis that are closer to those of patients with HFpEF than those of HFrEF, with certain distinctions. Whether these patients represent a unique and dynamic HF group that may benefit from targeted therapies known to be beneficial in patients with HFrEF, such as neurohormonal blockade, requires further study. This review summarizes what is known about the clinical epidemiology, pathophysiology, and prognosis for patients with HFmrEF and how these features compare with the more well-studied HF groups. Although recommended treatments currently focus on aggressive management of comorbidities, we summarize the studies that identify a potential signal for beneficial therapies. Future studies are needed to not only better characterize the HFmrEF population but to also determine effective management strategies to reduce the high cardiovascular morbidity and mortality burden on this phenotype of patients with HF. PMID- 29032142 TI - RAZA: A Rapid 3D z-crossings algorithm to segment electron tomograms and extract organelles and macromolecules. AB - Resolving the 3D architecture of cells to atomic resolution is one of the most ambitious challenges of cellular and structural biology. Central to this process is the ability to automate tomogram segmentation to identify sub-cellular components, facilitate molecular docking and annotate detected objects with associated metadata. Here we demonstrate that RAZA (Rapid 3D z-crossings algorithm) provides a robust, accurate, intuitive, fast, and generally applicable segmentation algorithm capable of detecting organelles, membranes, macromolecular assemblies and extrinsic membrane protein domains. RAZA defines each continuous contour within a tomogram as a discrete object and extracts a set of 3D structural fingerprints (major, middle and minor axes, surface area and volume), enabling selective, semi-automated segmentation and object extraction. RAZA takes advantage of the fact that the underlying algorithm is a true 3D edge detector, allowing the axes of a detected object to be defined, independent of its random orientation within a cellular tomogram. The selectivity of object segmentation and extraction can be controlled by specifying a user-defined detection tolerance threshold for each fingerprint parameter, within which segmented objects must fall and/or by altering the number of search parameters, to define morphologically similar structures. We demonstrate the capability of RAZA to selectively extract subgroups of organelles (mitochondria) and macromolecular assemblies (ribosomes) from cellular tomograms. Furthermore, the ability of RAZA to define objects and their contours, provides a basis for molecular docking and rapid tomogram annotation. PMID- 29032141 TI - Moderate Alcohol Consumption Is Associated With Lower Risk for Heart Failure But Not Atrial Fibrillation. AB - OBJECTIVES: The aim of this study was to assess the hypothesis that alcohol consumption is associated with onset of atrial fibrillation (AF) and/or heart failure (HF). BACKGROUND: The connection between ethanol intake and AF or HF remains controversial. METHODS: The study population was 22,824 AF- or HF-free subjects (48% men, age >=35 years) randomly recruited from the general population included in the Moli-sani study, for whom complete data on HF, AF, and alcohol consumption were available. The cohort was followed up to December 31, 2015, for a median of 8.2 years (183,912 person-years). Incident cases were identified through linkage to the Molise regional archive of hospital discharges. Hazard ratios were calculated using Cox proportional hazard models and cubic spline regression. RESULTS: A total of 943 incident cases of HF and 554 of AF were identified. In comparison with never drinkers, both former and occasional drinkers showed comparable risk for developing HF. Drinking alcohol in the range of 1 to 4 drinks/day was associated with a lower risk for HF, with a 22% maximum risk reduction at 20 g/day, independent of common confounders. In contrast, no association of alcohol consumption with onset of AF was observed. Very similar results were obtained after restriction of the analyses to regular or only wine drinkers or according to sex, age, social status, or adherence to the Mediterranean diet. CONCLUSIONS: Consumption of alcohol in moderation was associated with a lower incidence of HF but not with development of AF. PMID- 29032143 TI - Effects of Cr(VI) on Ca2+-ATPase activity in the earthworm Eisenia andrei. AB - The effect of Cr(VI) as a soil contaminant on the edaphic worm Eisenia andrei was studied by evaluating the activity of Ca2+-ATPase in the intestinal mucosa. In eukaryotes, Ca2+-ATPase is a key mediator of cell signaling although comparatively little is known about its activity in earthworms. Size and anatomical constraints (i.e. small and complex) led us to develop and optimize a cyto-biochemical method to measure Ca2+-ATPase activity in earthworms. The principal site of enzyme activity was found to be the post clitellar intestinal tract; immunohistochemistry then identified plasma membrane Ca2+-ATPase (PMCA ATPase) in the apical area of the intestinal epithelium. Earthworms exposed for 28days to OECD soil contaminated with 1, 2, and 15mg/Kg Cr(VI) demonstrated about 70% inhibition of Ca2+-ATPase activity at the low Cr (VI) concentration (the half of the Italian law limit for residential areas), rising to approximately 84% inhibition at the highest concentration. Reduced enzyme activity was accompanied by decreased enzyme content and reduced lysosomal membrane stability (LMS), which is a well established early warning biomarker of stress. These data demonstrate the potential utility of Ca2+-ATPase activity as a sensitive parameter with which to detect environmental stress in earthworms. PMID- 29032146 TI - microRNA single polynucleotide polymorphism influences on microRNA biogenesis and mRNA target specificity. AB - microRNAs (miRNAs) are nowadays recognized as an essential component of gene regulatory networks. Furthermore, deregulation of miRNAs expression often contributes to human pathologies. Recently, a substantial number of single nucleotide polymorphism (SNPs) and rare mutations within pri-, pre- and mature miRNA sequences have been reported. These miRNA SNPs have often been associated with human disease. However, due to the complexity of miRNA biogenesis and the genome-wide functional effects of miRNAs, the determination of biological consequences of these miRNA SNPs remains challenging. Despite an increasing number of reports linking miRNA SNPs with human pathologies, few reports have analyzed the mechanism by which miRNA-SNPs contribute to disease pathogenesis. In this review, we discuss how single polynucleotide polymorphisms in miRNAs genes may influence miRNAs expression and function and thus potentially alter disease pathogenesis. PMID- 29032145 TI - Genetic association analysis of vitamin D receptor gene polymorphisms and obesity related phenotypes. AB - Vitamin D has been established as a key factor in the development of obesity through the vitamin D receptor (VDR). The aim of this study was to investigate the contribution of the VDR gene to obesity-related phenotypes in a population of Caucasian young adults. The study population consisted of 701 healthy Spanish young adults (mean age 20.41+/-2.48). Three single-nucleotide polymorphisms (SNPs) of VDR (TaqI, BsmI and FokI) were selected as genetic markers. Body composition measurements including weight, body mass index (BMI), fat mass (FM), percentage of fat mass (PFM), fat-free mass (FFM) and visceral fat level (VFL) were analysed. Differences in obesity traits across the genotypes were determined using analysis of covariance (ANCOVA). The FokI polymorphism showed a significant association with PFM across the whole population after adjusting for age and sex (p=0.022). Age-adjusted analysis revealed an association between body weight and the TaqI and BsmI SNPs in males (p=0.033 and p=0.028, respectively). However, these positive findings did not remain significant after applying the Bonferroni correction for multiple testing. Our findings suggest that VDR genetic variants are unlikely to play a major role in obesity-related phenotypes in a population of Caucasian young adults. PMID- 29032147 TI - High bone marrow miR-19b level predicts poor prognosis and disease recurrence in de novo acute myeloid leukemia. AB - Oncogenic role of miR-19 family has been identified in human cancers especially in lymphoid malignancies. However, to date, little studies investigated the role of miR-19 family in myeloid malignancies. Herein, we examined miR-19a/b expression and explored its clinical significance in de novo acute myeloid leukemia (AML). The detection of miR-19a/b expression was performed by real-time quantitative PCR in bone marrow mononuclear cells of 113 patients and 42 healthy donors. Both miR-19a/b levels were significantly increased in AML patients in contrast to controls. Patients with miR-19a/b overexpression were more frequently occurred in female, and had an older age. Moreover, cases with miR-19a overexpression had a higher frequency of U2AF1, C-KIT and CEBPA mutations, whereas miR-19b overexpressed cases harbored U2AF1 and IDH1/2 mutations. There was no significant association of miR-19a overexpression with complete remission (CR) rate and overall survival (OS) among whole-cohort AML, non-M3 AML, and cytogenetically normal AML (CN-AML). However, although miR-19b overexpression was not correlated with CR rate, patients with miR-19b overexpression presented significantly shorter OS in whole-cohort AML and a trend in non-M3 AML and CN-AML patients. Importantly, our data also showed that miR-19a/b expression level at CR phase was lower than diagnosis time, and was returned to primary level even higher when at relapse phase. Our findings revealed that miR-19a/b overexpression were frequent events in de novo AML patients. Moreover, up-regulation of miR-19b expression was associated with poor prognosis and disease recurrence in AML. PMID- 29032148 TI - Predisposition of IL-1beta (-511 C/T) polymorphism to renal and hematologic disorders in Indian SLE patients. AB - OBJECTIVE: To see the role of IL-1beta gene polymorphisms to disease susceptibility in Indian SLE patients. MATERIALS AND METHODS: This case-control study included 200 SLE patients and 201 controls. Serum levels of IL-1beta and anti-C1q antibodies were measured by multiplex immunoassay and ELISA respectively. Genotyping of SNPs in IL-1beta (-511C/T and +3954C/T) were performed by PCR-RFLP method. Autoantibody profile was done in 141 SLE patients. RESULTS: Mean serum levels of IL-1Beta were significantly higher (10.9+/ 5.3pg/ml) in patients compared to controls (7.0+/-2.0pg/ml) (p<0.0001). Similarly, mean levels of IL-1beta were significantly elevated among patients with renal and hematologic manifestations. IL-1Beta levels were negatively correlated with hemoglobin concentration (r=-0.25, p=0.001). A statistically significant difference was observed for IL-1beta -511CC genotypes (OR=2.9, p=0.0068, Pc=0.0136) in patients with Lupus Nephritis (LN) as compared to SLE patients without nephritis. The IL-1beta+3954CT genotype (OR=2.0, p=0.0032, Pc=0.0064) and +3954T allele (OR=1.9, p=0.0017, Pc=0.0034) showed significantly higher frequency among patients as compared to controls. Furthermore, the -511C allele showed higher prevalence in patients with renal (OR=1.6, p=0.0335) and hematologic (OR=1.6, p=0.0326) manifestations among SLE patients. CONCLUSION: IL 1beta gene polymorphisms appear to confer susceptibility to the disease in Indian SLE patients. PMID- 29032149 TI - TG haplotype in the LRP8 is associated with myocardial infarction in south Indian population. AB - Myocardial infarction (MI) is a complex multifactorial cardiovascular disease. India experiences a much greater burden of MI, also suggesting an experimental increase of this burden in the future. The absolute reasons for MI are context dependent and differ with different geographical settings. Several reports indicate that SNPs that are associated with certain diseases in other populations may not be associated with Indian population. It is, therefore, important to validate the association of SNPs. Low density lipoprotein receptor related protein 8 (LRP8) gene plays central role in human lipoprotein metabolism as it facilitates the clearance of bad cholesterol LDL, VLDL from plasma and is reported to be associated with MI in the western population. However, this gene has not been studied in the South Indian population. We aim to test the role of the LRP8 gene variants correlating with the lipid profile in MI patients in South Indian population. We sequenced regions of SNPs rs10788952, rs7546246, rs2297660 and rs5174 of LRP8 in 100 MI patients and 100 age-matched controls. Our result revealed a total of 4 variations. None of the SNPs were significantly associated with MI (p>0.973). Interestingly, haplotype based association analysis showed TG and CG of rs10788952 and rs7546246 significantly associated with MI (p<0.01 and p<0.00005) and in particular, haplotype TG was positively correlated with the risk of MI, as this increased the LDL and total cholesterol level in MI patients in south Indians. Our results suggest that haplotype TG is a risk factor for MI in South Indian population. PMID- 29032150 TI - Functional analysis of schizophrenia genes using GeneAnalytics program and integrated databases. AB - Schizophrenia (SCZ) is a chronic debilitating neuropsychiatric disorder with multiple risk factors involving numerous complex genetic influences. We examined and updated a master list of clinically relevant and susceptibility genes associated with SCZ reported in the literature and genomic databases dedicated to gene discovery for characterization of SCZ genes. We used the commercially available GeneAnalytics computer-based gene analysis program and integrated genomic databases to create a molecular profile of the updated list of 608 SCZ genes to model their impact in select categories (tissues and cells, diseases, pathways, biological processes, molecular functions, phenotypes and compounds) using specialized GeneAnalytics algorithms. Genes for schizophrenia were predominantly expressed in the cerebellum, cerebral cortex, medulla oblongata, thalamus and hypothalamus. Psychiatric/behavioral disorders incorporating SCZ genes included ADHD, bipolar disorder, autism spectrum disorder and alcohol dependence as well as cancer, Alzheimer's and Parkinson's disease, sleep disturbances and inflammation. Function based analysis of major biological pathways and mechanisms associated with SCZ genes identified glutaminergic receptors (e.g., GRIA1, GRIN2, GRIK4, GRM5), serotonergic receptors (e.g., HTR2A, HTR2C), GABAergic receptors (e.g., GABRA1, GABRB2), dopaminergic receptors (e.g., DRD1, DRD2), calcium-related channels (e.g., CACNA1H, CACNA1B), solute transporters (e.g., SLC1A1, SLC6A2) and for neurodevelopment (e.g., ADCY1, MEF2C, NOTCH2, SHANK3). Biological mechanisms involving synaptic transmission, regulation of membrane potential and transmembrane ion transport were identified as leading molecular functions associated with SCZ genes. Our approach to interrogate SCZ genes and their interactions at various levels has increased our knowledge and insight into the disease process possibly opening new avenues for therapeutic intervention. PMID- 29032151 TI - Sertoli cell specific knockdown of RAR-related orphan receptor (ROR) alpha at puberty reduces sperm count in rats. AB - Globally, there is an alarming decline in sperm count. Very often hormonal supplementation fails to restore normal sperm count. Sertoli cells (Sc) present within seminiferous tubules provide appropriate niche and factors required for the differentiation of germ cells (Gc) into mature sperm (spermatogenesis). Functionally compromised Sc may be one of the reasons for failure of hormones to facilitate normal spermatogenesis. Although role of secretory proteins and signaling molecules of Sc has been studied well, role of transcription factors regulating sperm count has not been addressed appropriately. Retinoic acid receptor-related orphan receptor (ROR)-alpha is one of such transcription factors reported in testis but its role in testicular function is not yet known. In a separate study, we found abundant ROR-alpha binding sites on promoter regions of several genes upregulated in pubertal rat Sc as compared to infant Sc. Immunostaining studies also revealed presence of ROR alpha in nucleus of pubertal Sc. We generated a transgenic knockdown rat model expressing shRNA targeted to ROR-alpha under Sc specific promoter, which is transcriptionally active only at and after puberty. ROR-alpha knockdown animals were found to have abnormal association of Sc and Gc, including Gc sloughing and restricted release of sperm. The knockdown animals displayed compromised spermatogenesis leading to significant reduction in sperm count. This is the first report describing the Sc specific role of ROR-alpha in maintaining quantitatively normal sperm output. Identification of various such molecules can generate avenues to limit or reverse an alarmingly declining sperm count witnessed globally in men. PMID- 29032152 TI - Structure function characterization of the ELL Associated Factor (EAF) from Schizosaccharomyces pombe. AB - EAF (ELL Associated Factor) proteins interact with the transcription elongation factor, ELL (Eleven nineteen Lysine rich Leukemia) and enhance its ability to stimulate RNA polymerase II-mediated transcriptional elongation in vitro. Schizosaccharomyces pombe contains a single homolog of EAF (SpEAF), which is not essential for survival of S. pombe in contrast to its essential higher eukaryotic homologs. The physiological role of SpEAF is not well understood. In this study, we show that S. pombe EAF is important in regulating growth of S. pombe cells during normal growth conditions. Moreover, SpEAF is also essential for survival under conditions of DNA damage, while its deletion does not affect growth under environmental stress conditions. Our in vivo structure-function studies further demonstrate that while both the amino and carboxyl terminal domains of SpEAF possess the potential to activate transcription, only the amino terminal domain of SpEAF is involved in interaction with the S. pombe ELL protein. The carboxyl terminus of SpEAF is required for rescue of the growth defect under normal and DNA damaging conditions that is associated with the absence of SpEAF. Using bioinformatics and circular dichroism spectroscopy, we show that the carboxyl terminus of SpEAF has a disordered conformation. Furthermore, addition of trifluoroethanol triggered its transition from a disordered to alpha-helical conformation. Taken together, the results presented here identify novel structural and functional features of SpEAF protein, providing insights into how EAF proteins may enforce transcriptional control of gene expression. PMID- 29032153 TI - Metformin overcomes high glucose-induced insulin resistance of podocytes by pleiotropic effects on SIRT1 and AMPK. AB - Podocyte insulin sensitivity is critical for glomerular function, and the loss of appropriate insulin signaling leads to alterations and disorders featuring diabetic nephropathy. Energy-sensing pathways, such as AMP-dependent protein kinase (AMPK) and protein deacetylase SIRT1, have been shown to play an important role in insulin resistance. The absence of a stimulating effect of insulin on glucose uptake into podocytes after exposure to hyperglycemic conditions has been demonstrated to be related to a decreased level and activity of SIRT1 protein, leading to reduced AMPK phosphorylation. The present work was undertaken to investigate metformin's ability to restore the insulin responsiveness of podocytes by regulating SIRT1 and AMPK activities. Primary rat podocytes cultured with standard or high glucose concentrations for 5days were transfected with siRNAs targeting SIRT1, AMPKalpha1, or AMPKalpha2. SIRT1 activity was measured by a fluorometric method. Insulin-stimulated changes in glucose uptake were used to detect insulin resistance. Podocyte permeability was measured by a transmembrane albumin flux assay to examine podocytes functioning. Our results demonstrated that metformin activated SIRT1 and AMPK, prevented hyperglycemia-induced reduction of SIRT1 protein levels, ameliorated glucose uptake into podocytes, and decreased glomerular filtration barrier permeability. Furthermore, metformin activated AMPK in a SIRT1-independent manner, as the increase in AMPK phosphorylation after metformin treatment was not affected by SIRT1 downregulation. Therefore, the potentiating effect of metformin on insulin resistant podocytes seemed to be dependent on AMPK, as well as SIRT1 activity, establishing multilateral effects of metformin action. PMID- 29032154 TI - Are We Ready for Adjuvant Sunitinib in High-risk Renal Cell Carcinoma? PMID- 29032155 TI - Functional characterisation of glutathione export from the rat lens. AB - In this study, we have investigated whether the lens was capable of exporting the antioxidant glutathione. Pairs of rat lenses were cultured in isosmotic artificial aqueous humour for one, two, three, or six hours in low oxygen conditions (90% N2, 5% CO2, 5% O2), and reduced glutathione (GSH) and oxidised glutathione (GSSG) levels measured in the media and lenses. We show that the rat lens is capable of releasing ~5 nmol GSH for each time point suggesting that GSH release is regulated since it does not appreciably increase over time. We also demonstrated that the predominant form of glutathione released was the reduced form. We next cultured lenses in the absence or presence of acivicin, a gamma glutamyl transpeptidase (GGT) inhibitor, and found that GSH levels were significantly increased (p < 0.001) in the presence of this inhibitor, which indicated that GSH released by the lens undergoes degradation into its constituent amino acids. GSH release was significantly decreased (p < 0.001) in the presence of 100 MUM MK571, a multidrug resistance-associated protein (Mrp) inhibitor, suggesting that Mrp transporters mediate GSH efflux from the lens. Culturing lenses in low (10 MUM) or high (70 MUM) concentrations of H2O2 for one hour significantly increased total glutathione levels (p < 0.05) relative to controls, due to the increased release of GSSG. Our results show that in response to oxidative stress, the rat lens is able to release GSH or GSSG, thereby serving to maintain lens redox state or potentially influence the redox state of nearby tissues. PMID- 29032156 TI - Suppressor of cytokine signaling 2-12 regulates antimicrobial peptides and ecdysteroid signaling pathways in Bombyx mori (Dazao). AB - Suppressors of cytokine signaling (SOCS) are a potent negative regulator of diverse cytokine-related responses to maintain various physiological processes in animals. Here, we obtained the SOCS2-12 gene sequence of Bombyx mori (Dazao) (BmSOCS2-12) from the National Center for Biotechnology Information (NCBI) to study its expression profile in different tissues, as well as in the immune tissues following larval exposure to pathogens. Further, we investigated the role of BmSOCS2-12 in producing antimicrobial peptides (AMPs) and as a regulator of ecdysteroid signaling transduction. The quantitative real-time PCR analysis revealed unequal transcript levels of BmSOCS2-12 in the different tissues, however the gene's expression was highest in those of fat body and hemocyte. The challenge with pathogens significantly upregulated the transcript level of BmSOCS2-12 in both fat body and hemocyte when compared with the control. By contrast, recombinant BmSOCS2-12 protein injections strongly suppressed the expression of AMPs, while the knockdown of BmSOCS2-12 by double-stranded RNA enhanced their production. Administration of 20-hydroxyecdysone significantly downregulated the BmSOCS2-12 expression in fat body, and the depletion of BmSOCS2 12 enhanced the transcript levels of 20-hydroxyecdysone-responsive genes at 48 h. Altogether, BmSOCS2-12 may have multiple functional roles in the physiology of B. mori (Dazao), since it negatively regulates the expression of AMPs and ecdysteroid signaling transduction. PMID- 29032157 TI - Effects of fat and exoskeletal mass on the mass scaling of metabolism in Carabidae beetles. AB - The rate at which organisms metabolize resources and consume oxygen is tightly linked to body mass. Typically, there is a sub-linear allometric relationship between metabolic rates and body mass (mass-scaling exponent b < 1). The origin of this pattern remains one of the most intriguing and hotly debated topics in evolutionary physiology. A decrease in mass-specific metabolic rates in larger organisms might reflect disproportionate increases in body components with low metabolic activity, such as storage and skeletal tissues. Addressing this hypothesis, we studied standard metabolic rates, body mass, and fat and exoskeletal mass in males and females from 15 species of Carabidae beetles. There was a sub-linear allometric relationship of metabolic rate with body mass: b = 0.72 (phylogeny not considered), b = 0.54 (phylogeny considered). The latter exponent was significantly lower than 0.75, which is sometimes regarded as a universal exponent value in the mass scaling of metabolic rates. Contrary to our hypothesis, the relative contribution of fat and the exoskeleton to body mass decreased, rather than increased with body mass, as indicated by the sub-linear allometric mass scaling of both components (b < 1). Supporting the role of metabolically inert body components in shaping metabolic scaling, the exponents (b) for metabolism became slightly smaller (b = 0.70, phylogeny not considered; 0.52, phylogeny considered) when we removed lipids and the exoskeleton from body mass calculations and considered only the lean mass of soft tissue in the mass scaling. Overall, our results indicate that, in beetles, the relative content of metabolically inert components changes across species according to species specific body mass. Nevertheless, we did not find evidence that this changing contribution plays a central role in the origin of interspecific metabolic scaling in carabids. Our findings stress the need for finding alternative explanations, at least in carabids, for the origin of the mass scaling of metabolic rates. PMID- 29032158 TI - Location affects the management of liver haemangioma: A retrospective cohort study. AB - BACKGROUND: The location of liver haemangioma may affect surgical decisions, but no study has ever examined this issue. METHODS: A retrospective study was performed on 338 liver haemangioma patients who visited at clinic. The collected data included demographics, location, symptoms and whether surgical treatment was performed. For patients with surgical treatment, the collected data included radiologic characteristics, surgical procedures, surgical variables, postoperative stay, morbidity, and mortality. According to the location, patients were divided into left or right group and comparison was made between them. RESULTS: Compared to the right group, patients in the left group were more likely to have symptoms (P = 0.018), especially patients with 5- to 10-cm haemangiomas (P < 0.001). Patients in the left group had higher rates of exophytic lesions and gastric outlet compression (63.8% vs 7.1%, 56.5% vs 5.1%, P < 0.001 each), while patients in the right group had a higher rate of vessel compression (36.4% vs 21.7%, P = 0.043). Higher ratio of patients in left group received liver resection (75.4% vs 26.3%, P < 0.001). The surgical time, amounts of collected blood and autologous transfusion were all greater in the right group (P = 0.008, P = 0.001 and P = 0.003, respectively). The postoperative stay was longer in the right group (P = 0.007). CONCLUSION: The location of liver haemangioma should be considered when making surgical decisions, and it may be one of the main considerations for surgical procedures. PMID- 29032159 TI - Comparison between different approaches applied in laparoscopic right hemi colectomy: A systematic review and network meta-analysis. AB - AIM: Several different operative approaches have been applied nowadays in laparoscopic right hemi-colectomy. This study aims to evaluate the potential benefits of different approaches by conducting a network meta-analysis (NMA). METHOD: A comprehensive literature research of the PubMed, Embase, Medline, the Cochrane Central Library, Wan Fang and China National Knowledge Infrastructure (CNKI) databases was performed. Original articles comparing two of three different approaches including medial to lateral (MtL) approach, lateral to medial (LtM) approach and cranial to caudal (CtC) approach of laparoscopic right colon resection for patients with both neoplastic and benign diseases were included. RESULTS: 3 RCTs and 3 NRCTs with a total of 571 patients were included in this NMA. The result revealed that LtM approach needs shorter postoperative flatus recovery time than both MtL approach with a WMD of 1.40 (95% CI: 0.13 to 2.67, P < 0.05) and CtC approach (WMD = -1.25, 95% CI: -1.90 to -0.61, P < 0.05). The length of hospital stay of LtM approach is shorter than that of MtL approach (WMD = 0.29, 95% CI: 0.08 to 0.50, P < 0.05). CtC approach can achieve less postoperative complications (OR = 3.37, 95% CI: 1.06 to 10.70, P < 0.05) compared with MtL approach. CONCLUSION: All three approaches are safe and acceptable in laparoscopic right hemi-colectomy since the pooled evidence revealed that most aspects of different approaches are comparable in general. The postoperative flatus recovery time and hospitalization time of LtM approach is shorter compared with MtL approach. And CtC approach may have slight superiority in postoperative complications compared with MtL approach. PMID- 29032144 TI - Peroxisome proliferator-activated receptor gamma (PPARgamma): A master gatekeeper in CNS injury and repair. AB - Peroxisome proliferator-activated receptor gamma (PPARgamma) is a widely expressed ligand-modulated transcription factor that governs the expression of genes involved in inflammation, redox equilibrium, trophic factor production, insulin sensitivity, and the metabolism of lipids and glucose. Synthetic PPARgamma agonists (e.g. thiazolidinediones) are used to treat Type II diabetes and have the potential to limit the risk of developing brain injuries such as stroke by mitigating the influence of comorbidities. If brain injury develops, PPARgamma serves as a master gatekeeper of cytoprotective stress responses, improving the chances of cellular survival and recovery of homeostatic equilibrium. In the acute injury phase, PPARgamma directly restricts tissue damage by inhibiting the NFkappaB pathway to mitigate inflammation and stimulating the Nrf2/ARE axis to neutralize oxidative stress. During the chronic phase of acute brain injuries, PPARgamma activation in injured cells culminates in the repair of gray and white matter, preservation of the blood-brain barrier, reconstruction of the neurovascular unit, resolution of inflammation, and long term functional recovery. Thus, PPARgamma lies at the apex of cell fate decisions and exerts profound effects on the chronic progression of acute injury conditions. Here, we review the therapeutic potential of PPARgamma in stroke and brain trauma and highlight the novel role of PPARgamma in long-term tissue repair. We describe its structure and function and identify the genes that it targets. PPARgamma regulation of inflammation, metabolism, cell fate (proliferation/differentiation/maturation/survival), and many other processes also has relevance to other neurological diseases. Therefore, PPARgamma is an attractive target for therapies against a number of progressive neurological disorders. PMID- 29032160 TI - Multimodal treatment including hysterectomy improves survival in patients with locally advanced cervical cancer: A population-based, propensity score-matched analysis. AB - BACKGROUND: To evaluate the therapeutic value of multimodal treatment including hysterectomy in locally advanced cervical squamous cell carcinoma (SCC). METHODS: We retrospectively reviewed patients diagnosed with International Federation of Gynecology and Obstetrics (FIGO) stage IIB-III cervical SCC and received chemotherapy and radiotherapy with or without hysterectomy between 2000 and 2013 using the Surveillance, Epidemiology, and End Results program. Propensity score matching was used to balance baseline characteristics of included patients. Univariate and multivariate Cox regression analyses were performed to determine prognostic factors for cervical cancer specific-survival (CCSS) and overall survival (OS). RESULTS: We identified 2473 patients and 522 pairs of patients were completely matched with each other. In the unmatched population, patients with younger age, non-black race, poorly/undifferentiated disease, FIGO stage IIB disease, and node-positive disease were more likely to receive additional hysterectomy. Additional hysterectomy was associated with better CCSS and OS in unmatched and matched populations. Moreover, when evaluating the survival difference by FIGO stage, only stage IIB disease retained statistical significance but not for stage III disease in unmatched and matched populations. CONCLUSIONS: Our results suggest that multimodal treatment including hysterectomy might improve survival outcomes in patients with locally advanced cervical SCC, especially for stage IIB disease. PMID- 29032161 TI - Appropriate use criteria on transesophageal echocardiography: a cost-effective means to improve the quality of health services. PMID- 29032162 TI - De-identification of medical records using conditional random fields and long short-term memory networks. AB - The CEGS N-GRID 2016 Shared Task 1 in Clinical Natural Language Processing focuses on the de-identification of psychiatric evaluation records. This paper describes two participating systems of our team, based on conditional random fields (CRFs) and long short-term memory networks (LSTMs). A pre-processing module was introduced for sentence detection and tokenization before de identification. For CRFs, manually extracted rich features were utilized to train the model. For LSTMs, a character-level bi-directional LSTM network was applied to represent tokens and classify tags for each token, following which a decoding layer was stacked to decode the most probable protected health information (PHI) terms. The LSTM-based system attained an i2b2 strict micro-F1 measure of 0.8986, which was higher than that of the CRF-based system. PMID- 29032163 TI - Massively parallel sequencing on human cleavage-stage embryos to detect chromosomal abnormality. AB - PURPOSE: Next-generation sequencing technology like MPS has recently been introduced to perform comprehensive chromosome screening on human trophectoderm samples for preimplantation embryo assessment. However, the potential of MPS in chromosome analysis of single cell from blastomeres has not yet been investigated. METHODS: In this study, 12 couples underwent MPS analysis, including 9 balanced translocation carriers and 3 carriers of numerical chromosomal abnormalities. Cleavage-stage (Day 3) embryos (n = 105) were biopsied with one cell removal. Single cell from blastomeres was processed by whole genome amplification (WGA). WGA products were subjected to both MPS and microarray-based comparative genomic hybridization (array-CGH). Euploid embryos identified as "balanced or normal" were selected for frozen-thawed embryo transfer (FET) cycles. RESULTS: Reliable MPS-PGD results as well as array CGH-PGD results were obtained for 101 biopsied cleavage-stage embryos. 18.8% (19/101) embryos were identified as "euploid and balanced" by both MPS and array-CGH. 20.8% (21/101) were unbalanced for the translocation but normal for aneuploidy.26.7% (27/101) had aneuploidy and were unbalanced. 33.7% (34/101) showed normal or balanced but still had aneuploidy of chromosomes. In identifications of embryo aneuploidy and imbalance, MPS and array-CGH showed 100% consistency, with the exception of 4 samples. After transferring 12 embryos with normal or balanced for every chromosome, 1 live birth and 5 ongoing clinical pregnancies were achieved. CONCLUSION: In conclusion, as a flexible and cost-effective strategy and higher potential accuracy. MPS could be clinically applied to detect numeric abnormality of chromosome segments in day 3 preimplantation blastomeres. PMID- 29032165 TI - Association between family socioeconomic status and depressive symptoms among Chinese adolescents: Evidence from a national household survey. AB - Depression is a common mental disorder due to high risk of the adolescence development stage. Few studies discussed the association between family socioeconomic status (SES) and depression and its mechanism. We aimed to provide a national view of depressive symptoms among Chinese adolescents to explore the relationship between family SES and depressive symptoms. We used the data from the Chinese Family Panel Studies (CFPS). Family SES include family income and parents' educational attainment. Depressive symptoms were measured by the Center for Epidemiological Study Depression. Family SES was found to be significantly associated with adolescents' depressive symptoms. The study indicated that adolescents were more likely to have depressive symptoms when family income decreased. Poor self-confidence, mathematics performance, and physical health were associated with high risk for depressive symptoms. The presence of these factors greatly weakened the association between family SES and depressive symptoms. Therefore, adolescents' mental health is vulnerable and connected to family SES. Physical health, school performance, and self-confidence might be important mediators in the pathways of family SES affecting depressive symptoms. Prevention and intervention programs are important and necessary to improve the mental health of Chinese adolescents, and the effect of family SES should be considered in these programs. PMID- 29032164 TI - A portable microfluidic Aptamer-Tethered Enzyme Capture (APTEC) biosensor for malaria diagnosis. AB - There is a critical need for better biosensors for the detection and diagnosis of malaria. We previously developed a DNA aptamer that recognises the Plasmodium falciparum lactate dehydrogenase (PfLDH) enzyme with high sensitivity and specificity. The aptamer was integrated into an Aptamer-Tethered Enzyme Capture (APTEC) assay as a laboratory-based diagnostic approach. However, a portable equipment-free point-of-care aptamer-mediated biosensor could have a significant impact on malaria diagnosis in endemic regions. Here, we present a new concept for a malaria biosensor whereby aptamers are coated onto magnetic microbeads for magnet-guided capture, wash and detection of the biomarker. A biosensor incorporating three separate microfluidic chambers was designed to enable such magnet-guided equipment-free colorimetric detection of PfLDH. A series of microfluidic biosensor prototypes were optimised to lower rates of inter-chamber diffusion, increase sensitivity, and provide a method for point-of-care sample testing. The biosensor showed high sensitivity and specificity when detecting PfLDH using both in vitro cultured parasite samples and using clinical samples from malaria patients. The high performance of the biosensor provides a proof-of principle for a portable biosensor that could be adaptable for a variety of aptamer-mediated diagnostic scenarios. PMID- 29032166 TI - Interpersonal vulnerability among offspring of Holocaust survivors gay men and its association with depressive symptoms and life satisfaction. AB - The aim of the current study was to examine whether offspring of Holocaust survivors (OHS) gay men report higher interpersonal vulnerability in comparison to non-OHS gay men, and to further assess whether that vulnerability mediates the association between having a Holocaust background and mental health outcomes (depressive symptoms and life satisfaction). For this purpose, a community dwelling sample of 79 middle-aged and older OHS and 129 non-OHS gay men completed measures of hostile-world scenario (HWS) in the interpersonal domain, satisfaction from current steady relationship, depressive symptoms and life satisfaction. Results indicated that OHS reported higher HWS interpersonal vulnerability and lower satisfaction from current relationship in comparison to non-OHS gay men. Also, having a Holocaust background had an indirect effect on depressive symptoms and life satisfaction through HWS interpersonal vulnerability as well as through satisfaction from current relationship. These findings are the first to suggest interpersonal vulnerability of older OHS, in comparison to non OHS, gay men, and an association between this vulnerability and adverse psychological outcomes. This interpersonal vulnerability, possibly representing HWS threats of both early family-based trauma and current sexual minority stress, along with its implications, should be addressed by practitioners who work with older gay men having a Holocaust background. PMID- 29032167 TI - Evaluation of embryotoxic and teratogenic effects of the oil extracted from Caryocar brasiliense Cambess pulp in rats. AB - The objective of this study was to evaluate the maternal, embryotoxic and teratogenic effects of Caryocar brasiliense pulp oil (OPCB), oil widely used in Brazilian cuisine and traditional medicine. Pregnant Wistar female rats were used in this study for three treatment groups (250, 500 and 1000 mg/kg/day) and a control group. The OPCB was administered orally throughout the period of organogenesis of females (6th until the 15th day of gestation). The pregnant females were gross necropsied on d20, followed by maternal and fetus examination, to evaluate the teratogenicity, reproductive and developmental performance of OPCB. The results showed there was no significant statistical difference in the ponderal evolution of the pregnant females, as well as in the behavioral, hematological, biochemical or histopathological data, indicating the absence of maternal toxicity of the oil. The mean number of corpora lutea, implantation and resorption sites, as well as all calculated reproductive rates, also remained statistically similar between the groups, indicating low embryotoxic effects of the tested plant specie. In fetal examination, external anomalies and skeletal abnormalities were observed in all treated and control groups. The NOAEL for maternal toxicity and embryo/fetal development for the OPCB administered by gavage, was 1000 mg/kg/bw/day. PMID- 29032168 TI - Ineffectiveness of the Tobacco Hazards Prevention Act in patients with severe and persistent mental illness. AB - OBJECTIVES: The effect of the Tobacco Hazards Prevention Act (THPA) on the reduction of tobacco use in the general population in Taiwan is understood. However, there has been little research on how these policies affect people with severe and persistent mental illness (SPMI). Hence, the influence of the THPA on daily cigarette use by patients with SPMI was investigated in a 3-year follow-up. The risk and protective factors in smoking behavior and cessation were investigated. STUDY DESIGN: This is an observational study. METHODS: A total of 144 participants (78 of whom had smoked >100 cigarettes throughout their lifetime) were randomly selected from a healthcare network. Then, 100 of 144 patients with SPMI, included 50 smokers and 50 non-smokers, have agreed with 1st year follow-up. Eighty-two patients with SPMI, consisted of 44 smokers and 38 non smokers, have agreed with 2nd year follow-up. RESULTS: Although women were less likely to smoke than men, those who did smoke reduced the number of cigarettes less than men over the 3-year period. Less-educated patients were more likely to smoke than those who were more educated but reduced the number of daily cigarettes more after implementation of the THPA. Maternal overprotection was a risk factor and paternal care a protective factor for smoking. Addiction, a perception of pleasure, interpersonal relationships, and self-destructive behavior increased cigarette smoking. Patients perceived that smoking alleviated their depressive symptoms. CONCLUSIONS: The THPA was ineffective for patients with SPMI. Some factors had different effects on the development of smoking behavior and the cessation process. Understanding the etiology of smoking can help policymakers establish more effective programs for smoking prevention and cessation. PMID- 29032170 TI - Reprint of: Decomposition of PPCPs by ultrasound-assisted advanced Fenton reaction: A case study with salicylic acid. AB - The study is about the degradation of a widely used pharmaceutical and personal care product-salicylic acid by sonocatalysis, and the experimental design of the reaction system. The first part of the study consists of sonication (572kHz) in the presence of zero-valent iron (ZVI) with or without H2O2 to select and optimize the operational parameters as frequency, time, initial solute concentration, dose of reagents and pH. The second part consists of the use of response surface methodology and multiple regression to develop an experimental design modeland to assess the individual and interactive effects of pH, power (Po), ZVI dose and H2O2. The results showed that the optimal conditions predicted by the model without defining any restrictions are: pH=2.0, Po=120W, ZVI=24mgL-1, which provide total salicyclic acid and 48% TOC decay. However, the prediction implies intensive consumption of energy and reagents, and must therefore be modified by restricting the value of TOC decay to a lower value and that of pH to a higher one. Cross-validation tests showed that the prediction accuracy of the model was considerably high with 5.0-9.4% deviation from the experimental data. PMID- 29032171 TI - Reprint of: State-of-the-art on ultrasonic oil production technique for EOR in China. AB - Ultrasonic oil production technique for enhanced oil recovery (EOR) attracts more attention due to its high adaptability, simple operation, low cost and zero pollution to the oil reservoir. In this paper, recent new downhole tools used for enhanced oil recovery developed in China are summarized. Furthermore, research advance on some key problems that affect the widespread application of ultrasonic oil production technique in China are also summarized in view of what are the primary factors that influence crude oil paraffin inhibition and viscosity reduction, whether ultrasonic excitation is better than chemical agent for any plugs removal and whether ultrasound-chemical combination plug removal technology has the best plugs removal effect. The purpose of this paper is to provide reference for the broad application of ultrasonic oil production for enhance oil recovery. PMID- 29032169 TI - Survival Advantage of Both Human Hepatocyte Xenografts and Genome-Edited Hepatocytes for Treatment of alpha-1 Antitrypsin Deficiency. AB - Hepatocytes represent an important target for gene therapy and editing of single gene disorders. In alpha-1 antitrypsin (AAT) deficiency, one missense mutation results in impaired secretion of AAT. In most patients, lung damage occurs due to a lack of AAT-mediated protection of lung elastin from neutrophil elastase. In some patients, accumulation of misfolded PiZ mutant AAT protein triggers hepatocyte injury, leading to inflammation and cirrhosis. We hypothesized that correcting the Z mutant defect in hepatocytes would confer a selective advantage for repopulation of hepatocytes within an intact liver. A human PiZ allele was crossed onto an immune-deficient (NSG) strain to create a recipient strain (NSG PiZ) for human hepatocyte xenotransplantation. Results indicate that NSG-PiZ recipients support heightened engraftment of normal human primary hepatocytes as compared with NSG recipients. This model can therefore be used to test hepatocyte cell therapies for AATD, but more broadly it serves as a simple, highly reproducible liver xenograft model. Finally, a promoterless adeno-associated virus (AAV) vector, expressing a wild-type AAT and a synthetic miRNA to silence the endogenous allele, was integrated into the albumin locus. This gene-editing approach leads to a selective advantage of edited hepatocytes, by silencing the mutant protein and augmenting normal AAT production, and improvement of the liver pathology. PMID- 29032172 TI - LPS enhances expression of CD204 through the MAPK/ERK pathway in murine bone marrow macrophages. AB - BACKGROUND AND AIMS: Lipopolysaccharide (LPS) is a main component of the Gram negative bacterial cell wall and is associated with a greater risk of atherosclerosis development in periodontal disease. LPS has been reported to increase both CD36 and CD204 expression and enhance the uptake of modified low density lipoprotein (LDL). However, the signaling pathways by which LPS enhances these expression levels and function have not been fully elucidated, although the clarification of these signaling pathways is important for identifying therapeutic targets for atherosclerosis. METHODS AND RESULTS: We have shown here that LPS activated the mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase (ERK) pathway, increased both CD204 and CD36 expression, and enhanced the uptake of acetylated-LDL (Ac-LDL) in mouse bone marrow macrophages. The MAPK/ERK kinase (MEK) inhibitors, U0126 (1 MUM) and PD0325901 (10 nM), did not affect the expression of either CD36 or CD204 or the uptake of Ac-LDL under normal conditions (no treatment with LPS). In contrast, U0126 (1 MUM) and PD0325901 (10 nM) blocked the LPS-induced increase in Ac-LDL uptake and CD204 expression but not CD36 expression. CONCLUSIONS: These results suggest that LPS may increase Ac-LDL uptake and enhance CD204 expression through MAPK/ERK activation and CD36 expression through an ERK-independent pathway. Since MEK inhibitors block CD204 expression in mouse BM macrophages only under LPS treatment but not under normal conditions, a MEK inhibitor might be a good candidate compound for the treatment of LPS-induced atherosclerosis. PMID- 29032174 TI - C/EBPalpha and PU.1 exhibit different responses to RANK signaling for osteoclastogenesis. AB - The transcription factors C/EBPalpha and PU.1 are upregulated by RANKL through activation of its receptor RANK during osteoclastogenesis and are critical for osteoclast differentiation. Herein we investigated the mechanisms underlying how C/EBPalpha and PU.1 regulate osteoclast differentiation in response to RANK signaling. We showed that C/EBPalpha or PU.1 overexpression could initiate osteoclastogenesis and upregulate the expressions of the osteoclast genes encoding the nuclear factor of activated T-cells, C1, cathepsin K, and tartrate resistant acid phosphatase independently of RANKL. However, while PU.1 upregulated C/EBPalpha, C/EBPalpha could not upregulate PU.1. RANK has a unique cytoplasmic domain, 535IVVY538 motif, which is crucial for osteoclast differentiation. We demonstrated that mutational inactivation of RANK IVVY motif blocked osteoclast differentiation and significantly attenuated C/EBPalpha, but not PU.1, expression, indicating that RANK-IVVY-induced signaling is dispensable to PU.1 upregulation during osteoclastogenesis. However, C/EBPalpha or PU.1 overexpression failed to promote osteoclastogenesis in cells expressing mutated RANK IVVY motif. We noted that RANK-IVVY-motif inactivation significantly repressed osteoclast genes as compared with a vector control, suggesting that IVVY motif might also negatively regulate osteoclast inhibitors during osteoclastogenesis. Consistently, IVVY-motif inactivation triggered upregulation of RBP-J, a potent osteoclast inhibitor, during osteoclastogenesis. Notably, C/EBPalpha or PU.1 overexpression in cells expressing mutated RANK IVVY motif failed to control the deregulated RBP-J expression, resulting in repression of osteoclast genes. Accordingly, RBP-J silencing in the mutant cells rescued osteoclastogenesis with C/EBPalpha or PU.1 overexpression. In conclusion, we revealed that while PU.1 and C/EBPalpha are critical for osteoclastogenesis, they respond differently to RANKL-induced activation of RANK IVVY motif. PMID- 29032176 TI - Three-dimensional evaluation of marginal and internal fit of 3D-printed interim restorations fabricated on different finish line designs. AB - PurposeTo evaluate the influence of fabrication method and finish line design on marginal and internal fit of full-coverage interim restorations. MethodsFour typodont models of maxillary central-incisor were prepared for full-coverage restorations. Four groups were defined; knife-edge (KE), chamfer (C), rounded shoulder (RS), rounded-shoulder with bevel (RSB). All preparations were digitally scanned. A total of 80 restorations were fabricated; 20 per group (SLA/3D-printed n=10, milled n=10). All restorations were positioned on the master die and scanned using micro-computed tomography. The mean gaps were measured digitally (ImageJ). The results were compared using MANOVA (alpha=.05). ResultsInternal and marginal gaps were significantly influenced by fabrication method (P=.000) and finish-line design (P=.000). 3D-Printed restorations showed statistically significant lower mean gap compared to milled restorations at all points (P=.000). The mean internal gap for 3D-printed restorations were 66, 149, 130, 95MUm and for milled restorations were 89, 177, 185, 154MUm for KE, C, RS, RSB respectively. The mean absolute marginal discrepancy in 3D-printed restorations were (30, 41, 30, 28MUm) and in milled restorations were (56, 54, 52, 38MUm) for KE, C, RS, RSB respectively. ConclusionsThe fabrication methods showed more of an influence on the fit compared to the effect of the finish-line design in both milled and printed restorations. SLA-printed interim restorations exhibit lower marginal and internal gap than milled restorations. Nonetheless, for both techniques, all values were within the reported values for CAD/CAM restorations. Significance3D-printing can offer an alternative fabrication method comparable to those of milled restorations. PMID- 29032175 TI - The effect of raloxifene on bone marrow adipose tissue and bone turnover in postmenopausal women with osteoporosis. AB - In patients with postmenopausal osteoporosis low bone volume is associated with high bone marrow adipose tissue (MAT). Moreover, high MAT is associated with increased fracture risk. This suggests an interaction between MAT and bone turnover, however literature remains equivocal. Estrogen treatment decreases MAT, but the effect of raloxifene, a selective estrogen receptor modulator (SERM) registered for treatment of postmenopausal osteoporosis, on MAT is not known. The aim of this study is 1] to determine the effect of raloxifene on MAT and 2] to determine the relationship between MAT and bone turnover in patients with osteoporosis. Bone biopsies from the MORE trial were analyzed. The MORE trial investigated the effects of raloxifene 60 or 120mg per day versus placebo on bone metabolism and fracture incidence in patients with postmenopausal osteoporosis. We quantified MAT in iliac crest biopsies obtained at baseline and after 2years of treatment (n=53; age 68.2+/-6.2years). Raloxifene did not affect the change in MAT volume after 2years compared to baseline (placebo: 1.89+/-10.84%, raloxifene 60mg: 6.31+/-7.22%, raloxifene 120mg: -0.77+/-10.72%), nor affected change in mean adipocyte size (placebo: 1.45 (4.45) MUm, raloxifene 60mg: 1.45 (4.35) MUm, raloxifene 120mg: 0.81 (5.21) MUm). Adipocyte number tended to decrease after placebo treatment (-9.92 (42.88) cells/mm2) and tended to increase during raloxifene 60mg treatment (13.27 (66.14) cells/mm2) while adipocyte number remained unchanged in the raloxifene 120mg group, compared to placebo (3.06 (39.80) cells/mm2, Kruskal-Wallis p=0.055, post hoc: placebo vs raloxifene 60mg p=0.017). MAT volume and adipocyte size were negatively associated with osteoclast number at baseline (R2=0.123, p=0.006 and R2=0.098, p=0.016 respectively). Furthermore adipocyte size was negatively associated with osteoid surface (R2=0.067, p=0.049). Finally, patients with vertebral fractures had higher MAT volume (50.82 (8.80)%) and larger adipocytes (55.75 (3.14) MUm) compared to patients without fractures (45.58 (12.72)% p=0.032, 52.77 (3.73) MUm p=0.004 respectively). In conclusion, raloxifene did not affect marrow adipose tissue, but tended to increase adipocyte number compared to placebo. At baseline MAT volume and adipocyte size were associated with bone resorption, and adipocyte size was associated with osteoid surface, suggesting an interaction between bone marrow adipocytes and bone turnover. In addition, we found that high MAT volume and larger adipocyte size are associated with prevalent vertebral fractures in postmenopausal women with osteoporosis, indicating that adipocyte size affects bone quality independent of bone volume. PMID- 29032173 TI - The reduced osteogenic potential of Nf1-deficient osteoprogenitors is EGFR independent. AB - Neurofibromatosis type 1 (NF1) is a common genetic disorder caused by mutations in the NF1 gene. Recalcitrant bone healing following fracture (i.e. pseudarthrosis) is one of the most problematic skeletal complications associated with NF1. The etiology of this condition is still unclear; thus, pharmacological options for clinical management are limited. Multiple studies have shown the reduced osteogenic potential of Nf1-deficient osteoprogenitors. A recent transcriptome profiling investigation revealed that EREG and EGFR, encoding epiregulin and its receptor Epidermal Growth Factor Receptor 1, respectively, were among the top over-expressed genes in cells of the NF1 pseudarthrosis site. Because EGFR stimulation is known to inhibit osteogenic differentiation, we hypothesized that increased EREG and EGFR expression in NF1-deficient skeletal progenitors may contribute to their reduced osteogenic differentiation potential. In this study, we first confirmed via single-cell mRNA sequencing that EREG over expression was associated with NF1 second hit somatic mutations in human bone cells, whereas Transforming Growth Factor beta 1 (TGFbeta1) expression was unchanged. Second, using ex-vivo recombined Nf1-deficient mouse bone marrow stromal cells (mBMSCs), we show that this molecular signature is conserved between mice and humans, and that epiregulin generated by these cells is overexpressed and active, whereas soluble TGFbeta1 expression and activity are not affected. However, blocking either epiregulin function or EGFR signaling by EGFR1 or pan EGFR inhibition (using AG-1478 and Poziotinib respectively) did not correct the differentiation defect of Nf1-deficient mBMSCs, as measured by the expression of Alpl, Ibsp and alkaline phosphatase activity. These results suggest that clinically available drugs aimed at inhibiting EGFR signaling are unlikely to have a significant benefit for the management of bone non-union in children with NF1 PA. PMID- 29032177 TI - Exercise assessment and training in cystic fibrosis: Can less achieve more? PMID- 29032178 TI - IgG avidity to Pseudomonas aeruginosa over the course of chronic lung biofilm infection in cystic fibrosis. AB - BACKGROUND AND OBJECTIVES: The mechanisms leading to low effectiveness of the humoral immune response against P. aeruginosa in cystic fibrosis (CF) are poorly understood. The aim of the present study was to assess the avidity maturation of specific antipseudomonal IgG before and during the development of chronic lung infection in a cohort of Danish CF patients. METHODS: Avidity maturation was assessed against a pooled P. aeruginosa antigen (St-Ag) and against P. aeruginosa alginate in 10 CF patients who developed chronic lung infection and 10 patients who developed intermittent lung colonization, using an ELISA technique with the thiocyanate elution method. Avidity was quantitatively determined by calculating the avidity Constant (Kav). RESULTS: IgG avidity to St-Ag significantly increased at the onset (Median Kav=2.47) and one year after the onset of chronic infection (Median Kav=3.27), but did not significantly changed in patients who developed intermittent colonization. IgG avidity against alginate did not significantly change over the years neither in patients who developed chronic lung infection (Median Kav=3.84 at the onset of chronic infection), nor in patients who developed intermittent colonization. CONCLUSION: IgG avidity to P. aeruginosa alginate does not significantly enhance as chronic lung infection progresses. This probably plays a role in the difficulty to mount an effective opsonophagocytic killing to clear mucoid P. aeruginosa infection in CF. PMID- 29032179 TI - Corrigendum to "Does current reporting of lung function by the UK cystic fibrosis registry allow a fair comparison of adult centres?" [J Cyst Fibros (2017) 585 591]. PMID- 29032182 TI - Catalpol suppresses osteosarcoma cell proliferation through blocking epithelial mesenchymal transition (EMT) and inducing apoptosis. AB - Catalpol, an iridoid glucoside compound, is reported to possess diverse pharmacological actions. However, its effects on osteosarcoma are little to be known. In the present study, we showed that catalpol could strongly suppress osteosarcoma progression. Catalpol dose-dependently reduced the cancer cell viability. The migration of osteosarcoma cells was also consistently suppressed by catalpol treatment using the wound healing and transwell migration analysis. Catalpol reduced the expressions of Kras, receptor for activated C-kinase 1(RACK1) and matrix metalloproteinase (MMP)-2 in a dose-dependent manner, revealing the blockage of migration. Moreover, both intrinsic and extrinsic apoptosis were triggered by catalpol, as evidenced by improved cleaved Caspase-8/ 9/-3 and Poly-(ADP-ribose) polymerase (PARP). Release of Cyto-c in cytoplasm and Bax up-regulation in total cells were observed in catalpol-treated cells, while mitochondrial Cyto-c and cellular Bcl-2 were down-regulated by catalpol. Reactive oxygen species (ROS) production was also involved in catalpol-induced cell death. Further, ROS scavenger, N-acetylcysteine (NAC), impeded catalpol-caused apoptosis. And suppression of signal transducer and activator of transcription 3/Janus kinase 2 gene/Src (STAT3/JAK2/Src) was involved in catalpol-induced cell death. In vivo, catalpol showed effective ability to reduce the tumor growth. Our results illustrated that catalpol might be considered as a promising pharmacological agent to suppress osteosarcoma. PMID- 29032181 TI - The structure-activity relationship of ginsenosides on hypoxia-reoxygenation induced apoptosis of cardiomyocytes. AB - Ginsenosides have been studied extensively in recent years due to their therapeutic effects in cardiovascular diseases. While most studies examined the different ginsenosides individually, few studies compare the therapeutic effects among the different types. This study examined how effective protopanaxadiol, protopanaxatriol ginsenosides Rh2, Rg3, Rh1, and Rg2 of the ginsenoside family are in protecting H9c2 cardiomyocytes from damage caused by hypoxia/reoxygenation. In the current study, a model of myocardial ischemia and reperfusion was induced in H9c2 cardiomyocytes by oxygen deprivation via a hypoxia chamber followed by reoxygenation. Our data show that structures similar to that of protopanaxadiol, which lacked the hydroxide group at C6, were more effective in lowering apoptosis than structures similar to protopanaxatriol with a hydroxide group at C6. As the compounds increased in size and complexity, the cardioprotective effects diminished. In addition, the S enantiomer proved to be more effective in cardioprotection than the R enantiomer. Furthermore, the immunoblotting analysis demonstrated that ginsenosides activate AMPK but suppress JNK signaling pathways during hypoxia/reoxygenation. Thus, ginsenosides treatment attenuated hypoxia/reoxygenation-induced apoptosis via modulating cardioprotective AMPK and inflammation-related JNK signaling pathways. PMID- 29032183 TI - Peroxiredoxin-1 of macrophage is critical for mycobacterial infection and is controlled by early secretory antigenic target protein through the activation of p38 MAPK. AB - Early secretory antigenic target protein (ESAT-6) is an important virulent factor which plays a crucial role in Mycobacterium tuberculosis (MTB) pathogenesis. Here, we demonstrate the role of ESAT-6 in phagocytosis and intracellular survival of mycobacteria through a mechanism mediated by regulation of a host protein; Peroxiredoxin-1 (Prdx-1). Prdx-1 is an anti-apoptotic and stress response protein which protects cells from damage by ROS and H2O2. The J774 A.1 cells infected with MTB or over-expressing ESAT-6 through eukaryotic promoter vector showed elevated expression of Prdx-1. Further investigation revealed that the up-regulation of Prdx-1 is mediated through the activation of one of the MAP kinases, p38. The NRF-2, a transcriptional activator of Prdx-1 is translocated to the nucleus upon phosphorylation by p38 and subsequently, regulates expression of Prdx-1. Inhibition of the p38 MAPK by a specific inhibitor, SB203580, abrogates the ESAT-6 mediated induction of Prdx-1 expression as well as the phosphorylation of NRF-2 in a time-dependent manner. The inhibition of Prdx-1 expression by specific siRNA in J774 A.1 cells resulted in the reduced bacterial uptake and intracellular survival of the mycobacteria. This is the first report proclaiming that the ESAT-6 regulates Prdx-1 which is involved in the increase of mycobacterial uptake and survival. The intermediate mechanisms involve the increased Prdx-1 production in macrophages through the activation of p38 and NRF 2 dependent signaling. PMID- 29032180 TI - Genomic analysis of Isometamidium Chloride resistance in Trypanosoma congolense. AB - Isometamidium Chloride (ISM) is one of the principal drugs used to counteract Trypanosoma congolense infection in livestock, both as a prophylactic as well as a curative treatment. However, numerous cases of ISM resistance have been reported in different African regions, representing a significant constraint in the battle against Animal African Trypanosomiasis. In order to identify genetic signatures associated with ISM resistance in T. congolense, the sensitive strain MSOROM7 was selected for induction of ISM resistance in a murine host. Administered ISM concentrations in immune-suppressed mice were gradually increased from 0.001 mg/kg to 1 mg/kg, the maximal dose used in livestock. As a result, three independent MSOROM7 lines acquired full resistance to this concentration after five months of induction, and retained this full resistant phenotype following a six months period without drug pressure. In contrast, parasites did not acquire ISM resistance in immune-competent animals, even after more than two years under ISM pressure, suggesting that the development of full ISM resistance is strongly enhanced when the host immune response is compromised. Genomic analyses comparing the ISM resistant lines with the parental sensitive line identified shifts in read depth at heterozygous loci in genes coding for different transporters and transmembrane products, and several of these shifts were also found within natural ISM resistant isolates. These findings suggested that the transport and accumulation of ISM inside the resistant parasites may be modified, which was confirmed by flow cytometry and ex vivo ISM uptake assays that showed a decrease in the accumulation of ISM in the resistant parasites. PMID- 29032184 TI - Exploring young adult perspectives on the use of gamification and social media in a smartphone platform for improving vegetable intake. AB - Young adults are the poorest consumers of vegetables. Social media and smartphones are frequently used by this demographic and could serve as an engaging medium for nutrition promotion. Five focus groups were conducted to capture participants' perceptions of a theory-based gamified self-monitoring app for improving vegetable intake of young adults. Ranking activities were used to gather feedback on preferences for social media posts. Data arising from group discussion were analysed using NVivo software using a deductive approach to group common ideas into themes. Thirty two participants (14 males) attended (mean age 23.1 (SD 2.7) years). Qualitative analyses of open discussion revealed two major themes regarding preferred features for a smartphone app; (1) the use of visual guides for estimating quantities of vegetables and tracking progress, and (2) a simple interface. Gamification strategies such as earning badges were viewed more positively than the use of a self-reward framework. Social media posts which presented food pictures and recipes were ranked most motivating, while awareness raising posts received lower scores. Participants indicated a preference for viewing but reluctance to post information onto social media. "Just in time" situational cues were ranked highly and the use of an "authoritative" tone was preferred and associated with credibility. Young adults also ranked messages containing "Gen Y" language highly, with a preference for those which were personally relevant. The proposed use of social media and mobile-gaming was seen as an acceptable approach for improving vegetable intake. Materials should be visually appealing, simply designed, credible, and personally relevant to appeal to this population. This feedback may inform future mobile-phone based interventions targeting improved nutrition in young adults. PMID- 29032185 TI - The moderating effects of acculturation on the relation of parenting strategies to unhealthy weight control behaviors in Hispanic daughters. AB - There is a dearth of research regarding the association of child and parent traits to the use of unhealthy weight control behaviors among minority girls with obesity. This study examined the moderating effects of mothers' and daughters' acculturation in the relation of parenting strategies (setting limits, monitoring and discipline) to unhealthy weight control behaviors in Hispanic girls with obesity. Participants included 148 Hispanic mother-daughter dyads (Mage = 39.1, SD = 6.4 years; Mage = 11.3, SD = 1.5 years, respectively). Two-thirds of the mothers were born in Mexico and 46% of them reported low levels of acculturation. In contrast, almost all daughters (90%) were born in the United States and reported high levels of acculturation. Participants were recruited through school nurses and social agencies community coordinators. Mothers and daughters completed surveys on demographic, acculturation, unhealthy weight control behaviors (daughters only) and parenting strategies (mothers only), and had their height, weight, and adiposity assessed. Results from a hierarchical regression analysis revealed that daughters' acculturation, but not mothers' acculturation, moderated the relation of parenting limit setting to daughters' reported engagement in unhealthy weight control behaviors (beta = 1.12, p = 0.007). That is, mothers who used more limit setting were less likely to have daughters engaging in unhealthy weight control behavior and this association was stronger among low acculturated girls than among their highly acculturated counterparts. Future research should assess cultural influences and parenting practices in a sample of Hispanic mothers and their adolescent daughters of varied weight statuses and acculturation levels. PMID- 29032186 TI - Does parental substance use always engender risk for children? Comparing incidence rate ratios of abusive and neglectful behaviors across substance use behavior patterns. AB - Parental substance use disorder (SUD) is associated with an added risk for child abuse and neglect, but less is understood about how a range of parental use behaviors is associated with differential maltreatment frequencies. This study used the National Survey of Child and Adolescent Well-Being (NSCAW I) to create categories for parental substance use behaviors that are conceptually associated with varying levels of substance-related impairments. The study sample was composed of 2100 parents of children ages 2-17 years from Wave 4 data collection. Weighted negative binomial regression models assessed the relationship between substance use behavior patterns and maltreatment frequencies by type. Behavior patterns defined by some form of past year substance use were associated with a higher frequency of physical or emotional abuse compared to non-users. In contrast, only past year SUD was associated with a higher frequency of neglect compared to other categories. In sum, the relationship between substance use and maltreatment frequencies differed for abuse and neglect, suggesting different pathways may be underlying these observed relationships. PMID- 29032187 TI - Agonistic antibodies in systemic sclerosis. AB - Systemic sclerosis (SSc) is characterized by microangiopathy, excessive fibrosis, and the presence of circulating autoantibodies to several cellular and extracellular components. The role of autoimmunity in generating the clinical and pathologic phenotypes in SSc has been long debated and is still matter of controversy. Distinct specificities of antinuclear antibodies (ANAs) are selectively detected in SSc patients and are associated with unique disease manifestations, but do not have a proven pathogenic role. A new group of autoantibodies reactive with cell surface receptors have been identified in SSc patients. They have been shown to directly activate pathways that may contribute to tissue and vascular damage. As such, they are proposed to have a role as agonistic autoantibodies in SSc. According to Koch's third postulate, the autoantibodies in question should cause disease when introduced into a healthy subject. Therefore, our review will focus on those autoantibodies for which agonistic activity has already been demonstrated not only in vitro, but, at least partly, also in vivo. These include the antibodies anti-endothelial cells (AECA), anti-Platelet-Derived Growth Factor Receptor (PDGFR), anti-Angiotensin II type 1 receptor (AT1R) and anti-endothelin-1 type A receptor (ETaR). In this review, we will discuss also a class of antagonistic autoantibodies, the anti-muscarinic-3 receptor (M3R) antibodies, since they seem to fulfill the aforementioned requirements. PMID- 29032188 TI - Genito-urinary genomics and emerging biomarkers for immunomodulatory cancer treatment. AB - Immunotherapy is gradually becoming a key factor in the therapeutic algorithm for patients with genito-urinary (GU) cancers at different stages of disease. Robust and reliable biomarkers are crucial for an appropriate inclusion of patients in clinical trials and for a reliable patient selection for treatments with immunomodulatory drugs. The increasing knowledge on the genomic landscape of GU cancers supports stratification of patients for targeted therapies. This review focusses on emerging biomarkers and the role of genomics in predicting clinical benefit to immunomodulatory agents in GU cancers. Based on cancer incidences and available data we restricted this overview to bladder, prostate and renal cancer. PMID- 29032189 TI - Laser-evoked potentials in painful radiculopathy. AB - OBJECTIVE: The aims of this exploratory study were (1) to develop a standardized objective electrophysiological technique with laser-evoked potentials to assess dorsal root damage quantitatively and (2) to correlate these LEP measures with clinical parameters and sensory abnormalities (QST) in the affected dermatome. METHODS: Thirty-eight patients with painful radiculopathy and 20 healthy subjects were investigated with LEP recorded from the affected dermatome and control areas as well as with quantitative sensory testing. Questionnaires evaluating severity and functionality were applied. RESULTS: On average, LEP amplitudes and latencies from the affected dermatomes did not differ from the contralateral control side. In patients with left L5 radiculopathy (more severely affected) the N2 latency was longer and the amplitudes reduced. CONCLUSIONS: The N2P2 amplitude correlated with pinprick evoked sensations in QST. The N2 latency from the affected dermatome correlates with pain intensity, chronicity, clinical severity and with a decrease of physical function. SIGNIFICANCE: An increase in N2-latency indicates a more pronounced nerve root damage, which is associated with a decrease of function and an increase of severity and pain. LEP amplitudes are associated with the functional status of the nociceptive system and may distinguish between degeneration of neuronal systems and central sensitization processes. PMID- 29032190 TI - Transient increase in sAPPalpha secretion in response to Abeta1-42 oligomers: an attempt of neuronal self-defense? AB - Amyloid precursor protein (APP), a key molecule of Alzheimer disease, is metabolized in 2 antagonist pathways generating the soluble APP alpha (sAPPalpha) having neuroprotective properties and the beta amyloid (Abeta) peptide at the origin of neurotoxic oligomers, particularly Abeta1-42. Whether extracellular Abeta1-42 oligomers modulate the formation and secretion of sAPPalpha is not known. We report here that the addition of Abeta1-42 oligomers to primary cortical neurons induced a transient increase in alpha-secretase activity and secreted sAPPalpha 6-9 hours later. Preventing the generation of sAPPalpha by using small interfering RNAs (siRNAs) for the alpha-secretases ADAM10 and ADAM17 or for APP led to increased Abeta1-42 oligomer-induced cell death after 24 hours. Neuronal injuries due to oxidative stress or growth factor deprivation also generated sAPPalpha 7 hours later. Finally, acute injection of Abeta1-42 oligomers into wild-type mouse hippocampi induced transient secretion of sAPPalpha 48-72 hours later. Altogether, these data suggest that neurons respond to stress by generating sAPPalpha for their survival. These data must be taken into account when interpreting sAPPalpha levels as a biomarker in neurological disorders. PMID- 29032192 TI - Age-dependent association of thyroid function with brain morphology and microstructural organization: evidence from brain imaging. AB - Thyroid hormone (TH) is crucial during neurodevelopment, but high levels of TH have been linked to neurodegenerative disorders. No data on the association of thyroid function with brain imaging in the general population are available. We therefore investigated the association of thyroid-stimulating hormone and free thyroxine (FT4) with magnetic resonance imaging (MRI)-derived total intracranial volume, brain tissue volumes, and diffusion tensor imaging measures of white matter microstructure in 4683 dementia- and stroke-free participants (mean age 60.2, range 45.6-89.9 years). Higher FT4 levels were associated with larger total intracranial volumes (beta = 6.73 mL, 95% confidence interval = 2.94-9.80). Higher FT4 levels were also associated with larger total brain and white matter volumes in younger individuals, but with smaller total brain and white matter volume in older individuals (p-interaction 0.02). There was a similar interaction by age for the association of FT4 with mean diffusivity on diffusion tensor imaging (p-interaction 0.026). These results are in line with differential effects of TH during neurodevelopmental and neurodegenerative processes and can improve the understanding of the role of thyroid function in neurodegenerative disorders. PMID- 29032191 TI - Aging and a genetic KIBRA polymorphism interactively affect feedback- and observation-based probabilistic classification learning. AB - Probabilistic category learning involves complex interactions between the hippocampus and striatum that may depend on whether acquisition occurs via feedback or observation. Little is known about how healthy aging affects these processes. We tested whether age-related behavioral differences in probabilistic category learning from feedback or observation depend on a genetic factor known to influence individual differences in hippocampal function, the KIBRA gene (single nucleotide polymorphism rs17070145). Results showed comparable age related performance impairments in observational as well as feedback-based learning. Moreover, genetic analyses indicated an age-related interactive effect of KIBRA on learning: among older adults, the beneficial T-allele was positively associated with learning from feedback, but negatively with learning from observation. In younger adults, no effects of KIBRA were found. Our results add behavioral genetic evidence to emerging data showing age-related differences in how neural resources relate to memory functions, namely that hippocampal and striatal contributions to probabilistic category learning may vary with age. Our findings highlight the effects genetic factors can have on differential age related decline of different memory functions. PMID- 29032193 TI - Selenium-functionalized liposomes for systemic delivery of doxorubicin with enhanced pharmacokinetics and anticancer effect. AB - Liposomes have shown to be an excellent drug delivery system, but the short in vivo fate discourages their popularity. This work aimed to develop selenium functionalized liposomes (SeLPs) for doxorubicin (Dox) delivery to prolong the systemic circulation of liposomes by in situ selenium coating and enhance the anticancer effect via the synergy between Dox and selenium. Dox-loaded SeLPs (Dox SeLPs) were prepared by film hydration/active loading/in situ reduction technique and characterized by particle size, entrapment efficiency and morphology. The resulting Dox-SeLPs were 127 nm around in particle size (uncoated liposomes 107 nm) and were spherical in morphology. It was shown that Dox-SeLPs possessed a sustained release effect for Dox and could increase the cellular uptake of Dox compared with Dox-loaded liposomes (Dox-LPs). The accumulative Dox release from Dox-SeLPs was 46.5% and it was 64.9% for Dox-LPs within 84 h. Moreover, Dox-SeLPs exhibited slower drug release in the fetal bovine serum. Trafficking pathway study revealed that clathrin-mediated endocytosis and macropinocytosis were involved in the cellular uptake process of Dox-SeLPs. The in vitro cytotoxicity and apoptosis test indicated that Dox-SeLPs had higher cytotoxicity than that of free Dox and Dox-LPs. Dox-SeLPs showed a IC50 of 0.92 +/- 0.16 MUg/mL on A549 cells, far lower than that of free Dox (4.40 +/- 0.58 MUg/mL) and Dox-LPs (5.68 +/- 0.73 MUg/mL). Dox-SeLPs significantly improved the pharmacokinetic property and enhanced the antitumor efficacy of Dox in tumor-bearing mice. In conclusion, SeLPs exhibit good sustained release for Dox and have synergic anticancer effect with Dox, which may be promising as drug delivery vehicle. PMID- 29032194 TI - In situ mucoadhesive-thermosensitive liposomal gel as a novel vehicle for nasal extended delivery of opiorphin. AB - Previous studies proved the effectiveness of an intravenous PEGylated liposomal formulation of opiorphin (1mg/mL) in protecting the drug from enzymatic degradation, and improving intensity and duration of its painkilling effect. Therefore, considering the advantages of nasal administration, the aim of this work was the development of a liposomal mucoadhesive thermo-sensitive in situ gel for the extended nasal delivery of opiorphin. With this purpose, the potential of a series of combinations of different polymers (i.e. chitosan, hydroxypropylmethylcellulose, Poloxamer, Carbopol) in forming solutions able to rapidly gel at the nasal cavity temperature (34 degrees C) has been investigated. The best formulations were further characterized for gel strength and mucoadhesion properties. The selected formulation, composed by Poloxamer 407 (26.5%) and Carbopol 934P (1%), showed short gelation time at 34 degrees C (10s) and suitable mucoadhesion duration (5.5h) and strength (27g/cm2). Due to the low volume administrable via the nasal route, a concentrated liposomal formulation of the peptide (16.5mg/mL) was developed and loaded in the selected in situ gel formulation. Ex-vivo permeation studies, by excised nasal porcine mucosa, showed that the liposomal hydrogel formulation enabled a sustained and controlled delivery of opiorphin over more than 5h, and highlighted the role of the liposomal carrier in enhancing up to 6 times permeability coefficient and permeation rate of the peptide through the lipophilic nasal mucosa compared to a free peptide-loaded gel. PMID- 29032196 TI - Global causes of vision loss in 2015: are we on track to achieve the Vision 2020 target? PMID- 29032197 TI - Interleukin-22 attenuates double-stranded RNA-induced upregulation of PD-L1 in airway epithelial cells via a STAT3-dependent mechanism. AB - Double-stranded RNA derived from viruses induces host immune responses. PD-L1, also known as B7-H1, is an immune-checkpoint molecule associated with the escape of viruses from host immune systems, which plays a role in the persistence of viral infection, resulting in exacerbations of underlying diseases such as asthma and chronic obstructive pulmonary disease. Interleukin (IL)-22 is produced from various immune cells and has protective properties on mucosal tissue. The binding of IL-22 to IL-22 receptor induces STAT3 activation. We investigated the effect of IL-22 on the expression in airway epithelial cells in vitro and in mouse lungs in vivo after the stimulation with an analog of viral double-stranded RNA, polyinosinic-polycytidylic acid (poly I:C). Stimulation with poly I:C upregulated PD-L1 expression on BEAS-2B cells. This upregulation of PD-L1 was attenuated by IL-22 administration. STAT3 phosphorylation was induced by IL-22 and poly I:C. Treatment of cells with STAT3 siRNA abolished the effect of IL-22 on the poly I:C induced upregulation of PD-L1. This upregulation of PD-L1 was also attenuated by IL-11, a cytokine inducing STAT3 phosphorylation, in BEAS-2B cells. In mouse lung cells in vivo, IL-22 suppressed poly I:C-induced upregulation of PD-L1. These results suggest that IL-22 attenuates virus-induced upregulation of PD-L1 in airway epithelial cells via a STAT3-dependent mechanism. PMID- 29032198 TI - Antagonism of cysteinyl leukot-riene receptor 1 (cysLT1R) by montelukast regulates differentiation of MC3T3-E1 cells under overloaded mechanical environment. AB - Long-term exposure to overloaded mechanical environment induces bone fatigue damage symptoms and osteoblast damages. Montelukast is a selective cysteinyl leukot-riene receptor 1 (cysLT1R) antagonist, which has been used for the treatment of bronchial asthma in clinics. In the current study, we have identified a novel pharmacological role of montelukast by finding that it has protective properties against overload damage in osteoblastic MC3T3-E1 cells. Firstly, our results show that CysLT1R is expressed in MC3T3-E1 cells. Mechanical tensile strain of 5000-7000 MUepsilon resulted in a significant upregulation of CysLT1R in osteoblastic MC3T3-E1 cells in an intensity dependent manner. Secondly, MTT assay indicates that loading with 5000 MUepsilon mechanical strain inhibited cell proliferation, which was suppressed by montelukast treatment. Furthermore, montelukast promotes cell differentiation by increasing the expression of ALP and RUNX2. Alizarin Red S staining assay showed that montelukast abolished the inhibitory effects of overload mechanics on osteoblast mineralization. Mechanistically, the effect of montelukast on osteoblastic differentiation acted by activating the extracellular regulated protein kinases (ERK) pathway. The obtained results suggested that montelukast promotes proliferation and differentiation in osteoblasts exposed to overload mechanics. PMID- 29032195 TI - Global causes of blindness and distance vision impairment 1990-2020: a systematic review and meta-analysis. AB - BACKGROUND: Contemporary data for causes of vision impairment and blindness form an important basis of recommendations in public health policies. Refreshment of the Global Vision Database with recently published data sources permitted modelling of cause of vision loss data from 1990 to 2015, further disaggregation by cause, and forecasts to 2020. METHODS: In this systematic review and meta analysis, we analysed published and unpublished population-based data for the causes of vision impairment and blindness from 1980 to 2014. We identified population-based studies published before July 8, 2014, by searching online databases with no language restrictions (MEDLINE from Jan 1, 1946, and Embase from Jan 1, 1974, and the WHO Library Database). We fitted a series of regression models to estimate the proportion of moderate or severe vision impairment (defined as presenting visual acuity of <6/18 but >=3/60 in the better eye) and blindness (presenting visual acuity of <3/60 in the better eye) by cause, age, region, and year. FINDINGS: We identified 288 studies of 3 983 541 participants contributing data from 98 countries. Among the global population with moderate or severe vision impairment in 2015 (216.6 million [80% uncertainty interval 98.5 million to 359.1 million]), the leading causes were uncorrected refractive error (116.3 million [49.4 million to 202.1 million]), cataract (52.6 million [18.2 million to 109.6 million]), age-related macular degeneration (8.4 million [0.9 million to 29.5 million]), glaucoma (4.0 million [0.6 million to 13.3 million]), and diabetic retinopathy (2.6 million [0.2 million to 9.9 million]). Among the global population who were blind in 2015 (36.0 million [12.9 million to 65.4 million]), the leading causes were cataract (12.6 million [3.4 million to 28.7 million]), uncorrected refractive error (7.4 million [2.4 million to 14.8 million]), and glaucoma (2.9 million [0.4 million to 9.9 million]). By 2020, among the global population with moderate or severe vision impairment (237.1 million [101.5 million to 399.0 million]), the number of people affected by uncorrected refractive error is anticipated to rise to 127.7 million (51.0 million to 225.3 million), by cataract to 57.1 million (17.9 million to 124.1 million), by age-related macular degeneration to 8.8 million (0.8 million to 32.1 million), by glaucoma to 4.5 million (0.5 million to 15.4 million), and by diabetic retinopathy to 3.2 million (0.2 million to 12.9 million). By 2020, among the global population who are blind (38.5 million [13.2 million to 70.9 million]), the number of patients blind because of cataract is anticipated to rise to 13.4 million (3.3 million to 31.6 million), because of uncorrected refractive error to 8.0 million (2.5 million to 16.3 million), and because of glaucoma to 3.2 million (0.4 million to 11.0 million). Cataract and uncorrected refractive error combined contributed to 55% of blindness and 77% of vision impairment in adults aged 50 years and older in 2015. World regions varied markedly in the causes of blindness and vision impairment in this age group, with a low prevalence of cataract (<22% for blindness and 14.1-15.9% for vision impairment) and a high prevalence of age-related macular degeneration (>14% of blindness) as causes in the high-income subregions. Blindness and vision impairment at all ages in 2015 due to diabetic retinopathy (odds ratio 2.52 [1.48 3.73]) and cataract (1.21 [1.17-1.25]) were more common among women than among men, whereas blindness and vision impairment due to glaucoma (0.71 [0.57-0.86]) and corneal opacity (0.54 [0.43-0.66]) were more common among men than among women, with no sex difference related to age-related macular degeneration (0.91 [0.70-1.14]). INTERPRETATION: The number of people affected by the common causes of vision loss has increased substantially as the population increases and ages. Preventable vision loss due to cataract (reversible with surgery) and refractive error (reversible with spectacle correction) continue to cause most cases of blindness and moderate or severe vision impairment in adults aged 50 years and older. A large scale-up of eye care provision to cope with the increasing numbers is needed to address avoidable vision loss. FUNDING: Brien Holden Vision Institute. PMID- 29032199 TI - Affinity and path of binding xylopyranose unto E. coli xylose permease. AB - Glucose transporters (GLUTs), expressed in all types of human cells, are responsible for the uptake of sugars as the primary energy source for the normal functions of good cells and for the abnormal growth of cancer cells. The E. coli xylose permease (XylE), a homologue of human GLUTs, has been investigated more thoroughly than other major facilitator proteins in the current literature. In this paper, we present a molecular dynamics (MD) study of an all-atom model system to elucidate the atomistic details and the free-energy landscape along the path of binding a xylopyranose (XYP) from the extracellular space to the inside of the transporter protein XylE. From the MD simulations, the Gibbs free energy of binding was found to be -4.4kcal/mol in agreement with the experimental value of -4.7kcal/mol. The accuracy of our study is further shown in the computed hydration energy of XYP of -14.6kcal/mol in comparison with the experimental data of -15.0kcal/mol. Along the binding path, the Gibbs free energy of the XYP-XylE complex first rises from zero in the dissociated state to approximately 4 kcal/mol in the transition state (when XylE slightly increases its opening toward the extracellular side to accommodate XYP) before dropping down to -9.0 kcal/mol in the bound state. These quantitative insights indicate the fast equilibration between the bound and the unbound states of XylE and XYP. They also serve as an atomistic-dynamic corroboration of the experimental conclusion that XylE is a high-affinity sugar transporter. PMID- 29032200 TI - Sez6l2 regulates phosphorylation of ADD and neuritogenesis. AB - Increasing evidence shows that immune-mediated mechanisms may contribute to the pathogenesis of central nervous system disorders including cerebellar ataxias, as indicated by the aberrant production of neuronal surface antibodies. We previously reported a patient with cerebellar ataxia associated with production of a new anti-neuronal antibody, anti-seizure-related 6 homolog like 2 (Sez6l2). Sez6l2 is a type 1 membrane protein that is highly expressed in the hippocampus and cerebellar cortex and mice lacking Sez6l2 protein family members develop ataxia. Here we used a proteomics-based approach to show that serum derived from this patient recognizes the extracellular domain of Sez6l2 and that Sez6l2 protein binds to both adducin (ADD) and glutamate receptor 1 (GluR1). Our results indicate that Sez6l2 is one of the auxiliary subunits of the AMPA receptor and acts as a scaffolding protein to link GluR1 to ADD. Furthermore, Sez6l2 overexpression upregulates ADD phosphorylation, whereas siRNA-mediated downregulation of Sez612 prevents ADD phosphorylation, suggesting that Sez6l2 modulates AMPA-ADD signal transduction. PMID- 29032201 TI - KLHL7 promotes TUT1 ubiquitination associated with nucleolar integrity: Implications for retinitis pigmentosa. AB - Kelch-like protein 7 (KLHL7) is a component of Cul3-based Cullin-RING ubiquitin ligase. Recent studies have revealed that mutations in klhl7 gene cause several disorders, such as retinitis pigmentosa (RP). Although KLHL7 is considered to be crucial for regulating the protein homeostasis, little is known about its biological functions. In this study, we report that KLHL7 increases terminal uridylyl transferase 1 (TUT1) ubiquitination involved in nucleolar integrity. TUT1 is normally localized in nucleolus; however, expression of KLHL7 facilitates a vulnerability of nucleolar integrity, followed by a decrease of TUT1 localization in nucleolus. On the other hand, pathogenic KLHL7 mutants, which causes an onset of RP, have little effect on both nucleolar integrity and TUT1 localization. Finally, KLHL7 increases TUT1 ubiquitination levels. Taken together, these results imply that KLHL7 is a novel regulator of nucleolus associated with TUT1 ubiquitination. Our study may provide a valuable information to elucidate a pathogenic mechanism of RP. PMID- 29032202 TI - PACT is required for MDA5-mediated immunoresponses triggered by Cardiovirus infection via interaction with LGP2. AB - Laboratory of genetics and physiology 2 (LGP2) and melanoma differentiation associated gene 5 (MDA5) cooperatively detect viral RNA in the cytoplasm of Cardiovirus-infected cells and activate innate immune responses. Here, we evaluated whether the double-stranded RNA-binding protein PACT plays a role in this anti-viral response to further elucidate the mechanism. Immunoprecipitation experiments demonstrated that PACT interacts with LGP2 and that this interaction is enhanced by encephalomyocarditis virus (EMCV) infection. In vitro interaction analyses using purified recombinant proteins confirmed that the single-stranded Theiler's murine encephalitis virus genome enhanced the interaction between LGP2 and PACT. Small interfering RNA knockdown experiments further indicated that PACT is required for Cardiovirus-triggered interferon responses. To support this functional interaction with LGP2, overexpressed PACT was shown to enhance EMCV triggered interferon promoter activity only when LGP2 and MDA5 were co-expressed but not when MDA5 is expressed alone. Together, our findings indicate a possible role of PACT in regulating the Cardiovirus-triggered immune responses mediated by MDA5 and LGP2, which opens the door to novel therapeutic strategies in interferon related autoimmune diseases and cancer. PMID- 29032203 TI - Construction of artificial human peritoneal tissue by cell-accumulation technique and its application for visualizing morphological dynamics of cancer peritoneal metastasis. AB - Human peritoneum is composed of mesothelial monolayer and stromal tissue containing microvasculature. Dissemination and infiltration of cancer cells to the peritoneum result in cancer peritoneal metastasis which is an important prognostic factor of intraperitoneal or intrapelvic carcinoma. To elucidate an initial metastatic mechanism of cancer cells, in vitro human peritoneal models are demanded. In this study, we created a three-dimensional artificial human peritoneal tissue (AHPT) harboring the blood or lymphatic vascular network by cell-accumulation technique. Morphological analysis demonstrated that AHPT had mesothelial monolayer with polygonal flat cells with apical microvilli, and stroma-like structure containing fibroblasts surrounded by extracellular matrix and blood or lymphatic vascular network. To assess AHPT as a tool for cancer peritoneal metastasis model, colon and ovarian cancer cells (HT-29 and SKOV3) were seeded onto AHPT. HT-29 cells showed poor metastatic characteristics forming thick clusters in mesothelial layer without invasion into stroma-like structure. On the other hand, SKOV3 cells rapidly invaded intercellular spaces between mesothelial cells and then spread over the stroma-like structure accompanying lymphatic invasion, showing aggressive metastatic characteristics. These results demonstrated that the metastatic dynamics of cancer cells with different characteristics are able to visualized by AHPT, suggesting that this tissue can be a powerful tool for the basic research of cancer peritoneal dissemination and metastasis. PMID- 29032204 TI - Angtensin II elicits a cAMP-dependent intestinal anion secretion by stimulating PGE2 release through AT1 subtype receptors in rat ileum. AB - A growing literature has demonstrated that the renin-angiotensin system (RAS) involves in gut function. Angiotensin II (AngII) stimulates Cl- secretion in intestine epithelial cells. However, the underlying signal pathway remains unexplored. Here, we explored that serosal application of Ang II (5 * 10-8 M) significantly increased the baseline Isc compared to the control group in rat ileum. Tetrodotoxin (TTX) failed to suppress Isc evoked by Ang II. However, the Ang II-evoked Isc was significantly suppressed by the ATR1 antagonist losartan instead of ATR2 antagonist PD123319. Of interest, both cyclooxygenase (COX)-1 inhibitor SC560 and COX-2 specific inhibitor ns398 blocked the Ang II-evoked Isc. Preincubation of submucosa/mucosa preparations with Ang II for 10 min significantly increased PGE2 production, which was abolished by either COX-1 or COX-2 inhibitor. In addition, the Ang II-induced PGE2 release was also attenuated by ATR1 receptor antagonist rather than selective ATR2 receptor antagonist. Furthermore, preincubation of tissues for 15 min with forskolin, a cAMP activator, markedly blocked the Isc evoked by AngII, while intracellular Ca2+ pump inhibitor thapsigargin, L-type Ca2+ channel blocker nicadipine or the epithelial Na+ channel blocker amiloride didn't show such function. These results suggest that Ang II evokes cAMP-activated intestinal anion secretion by stimulating PGE2 release through activation of ATR1. PMID- 29032205 TI - Binding and Hydrolysis of a Single ATP Is Sufficient for N-Gate Closure and DNA Supercoiling by Gyrase. AB - Topoisomerases catalyze the relaxation, supercoiling, catenation, and decatenation of DNA. Gyrase is a bacterial topoisomerase that introduces negative supercoils into DNA in an ATP-dependent reaction. The enzyme consists of two GyrB subunits, containing the ATPase domains, and two GyrA subunits. Nucleotide binding to gyrase B GyrB causes closing of the N-gate in gyrase, which orients bound DNA for supercoiling. N-gate re-opening after ATP hydrolysis, at the end of the supercoiling reaction, resets the enzyme for subsequent catalytic cycles. Gyrase binds and hydrolyzes two ATP molecules per catalytic cycle. Here, we dissect the role of these two binding and hydrolysis events using gyrase with one ATP-binding- and hydrolysis-deficient subunit, or with one binding-competent, but hydrolysis-deficient ATPase domain. We show that binding of a single ATP molecule induces N-gate closure. Gyrase that can only bind and hydrolyze a single ATP undergoes opening and closing of the N-gate in synchrony with ATP hydrolysis, and promotes DNA supercoiling under catalytic conditions. In contrast, gyrase that can bind two ATP molecules, but hydrolyzes only one, only supercoils DNA under stoichiometric conditions. Here, ATP bound to the hydrolysis-deficient subunit keeps the N-gate closed after hydrolysis of the other ATP and prevents further turnovers. Gyrase with only one functional ATPase domain hydrolyzes ATP with a similar rate to wild-type, but its supercoiling efficiency is reduced. Binding and hydrolysis of the second ATP may thus ensure efficient coupling of the nucleotide cycle with the supercoiling reaction by stabilizing the closed N-gate and by acting as a timer for N-gate re-opening. PMID- 29032206 TI - Divalent copper complexes as influenza A M2 inhibitors. AB - New M2 blockers effective against the ubiquitous amantadine-resistant S31N M2 mutation in influenza A are needed. Six copper complexes, 2, 4, 6, 8, 9, and 10, were synthesized and found to block both wild type and S31N M2. Free Cu2+ also blocks M2 S31N but not S31N/H37A. The copper complexes do not block M2 H37A (either S31 or S31N). The complexes were effective against three influenza A strains in cell-culture assays, but less toxic to cells than CuCl2. For example 4, Cu(cyclooctylamineiminodiacetate), which was stable at pH > 4 in the buffers used, had an EC50 against A/Calif/07/2009 H1N1 of 0.7 +/- 0.1 MUM with a CC50 of 147 MUM (therapeutic index, averaged over three strains, 67.8). In contrast, CuCl2 had an EC50 of 3.8 +/- 0.9 MUM and CC50 of 19 MUM. Because M2 H37 is highly conserved, these complexes show promise for further testing as drugs against all strains of influenza A. PMID- 29032207 TI - The effect of unsuccessful retrieval on children's subsequent learning. AB - It is well known that successful retrieval enhances subsequent adults' learning by promoting long-term retention. Recent research has also found benefits from unsuccessful retrieval, but the evidence is not as clear-cut when the participants are children. In this study, we employed a methodology based on guessing-the weak associate paradigm-to test whether children can learn from generated errors or whether errors are harmful for learning. We tested second- and third-grade children in Experiment 1 and tested preschool and kindergarten children in Experiment 2. With slight differences in the method, in both experiments children heard the experimenter saying one word (cue) and were asked to guess an associate word (guess condition) or to listen to the correspondent target-associated word (study condition), followed by corrective feedback in both conditions. At the end of the guessing phase, the children undertook a cued recall task in which they were presented with each cue and were asked to say the corrected target. Together, the results showed that older children-those in kindergarten and early elementary school-benefited from unsuccessful retrieval. Older children showed more correct responses and fewer errors in the guess condition. In contrast, preschoolers produced similar levels of correct and error responses in the two conditions. In conclusion, generating errors seems to be beneficial for future learning of children older than 5years. PMID- 29032208 TI - Chitosan-based nano-formulation enhances the anticancer efficacy of hesperetin. AB - Cancer is one of the major causes of increased morbidity and mortality in modern society. Colorectal cancer is the third leading cause for cancer related death worldwide. Current chemotherapeutics are not very effective and have severe side effects. Hesperetin is a bioflavonoid from citrus fruits and its clinical use is restricted because of the poor water solubility. Folate receptor is overexpressed in various cancer cells. Therefore, we synthesized the chitosan folate hesperetin nanoparticle (CFH) by covalently conjugating folic acid with chitosan molecules. The size of the CFH nanoparticles is around 450nm, which is advantageous for passively targeting the cancer cell specifically due to the leaky vasculature of the tumour. Particle surface and size were observed using SEM and TEM studies. The results show that hesperetin has an IC50 value of 190MUM and it induces apoptosis in HCT15 cells, however, CFH is very potent in inhibiting the proliferation with the IC50 value of 28MUM. In addition, CFH inhibited colony formation and induced apoptosis by regulating the expression of proapoptotic genes expression. Therefore, the chitosan - folic acid conjugation appears to be the suitable carrier for colorectal cancer cell-specific delivery of hesperetin. PMID- 29032209 TI - Customizing the spent coffee for Trichoderma reesei cellulase immobilization by modification with activating agents. AB - This study has explored the possibility to reuse the waste, spent coffee material for the cellulase enzyme immobilization. By the coffee surface modification with different activating agents, it was attempted to develop the convenient method for creation of a capable porous carrier for this purpose. Among the most common activating agents, glutaraldehyde, chlorine dioxide and hydrogen peroxide provided the most acceptable choice for the coffee surface modification. The changes that occurred on the coffee surface due to agents' treatment exposure were recorded by using of the FTIR spectra and SEM micrographs. The highest immobilization yield (55%) and immobilization efficiency (45%) were attained during 30min of the treatment time, by employing of 30% chlorine dioxide aqueous solution within 6mL/g activator/carrier ratio. The kinetic process was found to be predicted by the pseudo-second-order model. The cellulase immobilization onto the coffee surface provides an excellent base for increasing the enzyme availability to the substrate and enhancing the enzyme productivity, by offering the new perspectives to the industrial sector. PMID- 29032210 TI - Chemical composition of Cyclocarya paliurus polysaccharide and inflammatory effects in lipopolysaccharide-stimulated RAW264.7 macrophage. AB - This study was designed to study the chemical composition of Cyclocarya paliurus polysaccharide and inflammatory effects in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophage. A new elution (0.3% NaCl aqueous solution) of Cyclocarya paliurus polysaccharide (CPP-3) was characterized by different methods such as fourier transform infrared spectra (FT-IR), UV-vis, gas chromatography-mass spectrometry (GC-MS), high performance gel chromatography (HPGLC) and scanning electron microscopy (SEM). Cell viability was measured by MTT test, phagocytosis assay was measured by Neutral red uptake assay, nitrite was measured by Griess assay, TNF-alpha and IL-1beta analysis were measured by ELISA, PGE2 was measured by enzyme immunoassay system. The results showed that CPP-3 was comprised of two polysaccharides with average molecular weight (Mw) of 5.69*104Da and 4.94*103Da. CPP-3 contains six monosaccharides, of which are rhamnose (Rha), arabinose (Ara), xylose (Xyl), mannose (Man), glucose (Glu), galactose (Gal), the molar ratio of six monosaccharides is 0.060:0.109:0.053:0.128:0.293:0.357. CPP-3 increased the amount of NO released from mouse macrophage RAW264.7 and significantly increased the levels of TNF-alpha, IL-1beta and PGE2 (P<0.01). CPP-3 suppressed LPS stimulated RAW264.7 macrophage to release NO, TNF-alpha, IL-1beta and PGE2 (P<0.01). CPP-3 and LPS accounted for synergistic effect on the release of NO and TNF-alpha, CPP-3 and LPS accounted for antagonistic effect on the release of IL 1beta and PGE2. PMID- 29032211 TI - Discrete SeNPs-Macromolecule Binding Manipulated by Hydrophilic Interaction. AB - Nanoparticle-protein conjugates are promising probes for biological diagnostics and versatile building blocks for nanotechnology. Here we demonstrate the interaction of SeNPs with BSA macromolecule simply by physical adsorption method. The interaction between SeNPs and BSA has been investigated by UV-Vis, fluorescence, circular dichroism (CD) spectroscopic and thermal methods. The esterase-like activity of BSA towards PNPA was investigated in the presence of SeNPs. The effects of SeNPs on the stability and conformational changes of BSA were studied, which indicated that the binding of SeNPs with BSA induced relative changes in secondary structure of protein. SeNPs acted as a structure stabilizer for BSA which was further confirmed by thermal denaturation study. The hydrophilic bonding forces played important roles in the BSA-SeNPs complex formation. The putative binding site of SeNPs on BSA was near to Sudlow's site II. The hydrophilic interaction of SeNPs on the stability and structure of BSA would find promising application in drug delivery system. PMID- 29032212 TI - An acidic heteropolysaccharide from Mesona chinensis: Rheological properties, gelling behavior and texture characteristics. AB - Polysaccharide from Mesona chinensis is becoming increasingly attractive focus because of its gelling property and biological activities. In this study, the rheological properties of an acidic heteropolysaccharide from Mesona chinensis (MCP) were investigated in dilute and semidilute solutions. Dynamic rheology was systematically conducted to investigate the effects of concentration, temperature, pH values, salts and freeze-thaw variations on the rheological properties of MCP. Results showed that the rheological properties of MCP exhibited pseudoplastic characteristic and "gel-like" behavior by the flow behavior detection. A closed hysteresis loop was formed when the MCP concentration reached 4%, and the Gel was generated when the MCP concentration reached 5%. The storage modulu (G') and loss modulu (G") of MCP solution were increased with increasing oscillation frequency at concentration of 4% and 5%. The phase angel (tandelta) was less than 1, indicating MCP was a weak gel in linear viscoelastic region. The gel exhibited favourable textural properties when MCP at concentration 5%. The scanning electron microscope (SEM) verified MCP had a unique lotus leaf-like shape with some small irregular round-like rods surface morphology. PMID- 29032213 TI - Deproteinised natural rubber latex grafted poly(dimethylaminoethyl methacrylate) poly(vinyl alcohol) blend membranes: Synthesis, properties and application. AB - Natural rubber latex was initially deproteinised (DNRL) and then subjected to physicochemical modifications to make high functional membranes for drug delivery applications. Initially, DNRL was prepared by incubating with urea, sodiumdodecylsulphate and acetone followed by centrifugation. The deproteinisation was confirmed by CHN analysis. The DNRL was then chemically modified by grafting (dimethylaminoethyl methacrylate) onto NR particles by using a redox initiator system viz; cumene hydroperoxide/tetraethylenepentamine, followed by dialysis for purification. The grafting was confirmed by dynamic light scattering, Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy. The grafted system was blended with a hydrophilic adhesive polymer PVA and casted into membranes. The membranes after blending showed enhanced mechanical properties with a threshold concentration of PVA. The moisture uptake, swelling and water contact angle experiments indicated an increased hydrophilicity with an increased PVA content in the blend membranes. The grafted DNRL possessed significant antibacterial property which has been found to be retained in the blended form. A notable decrease in cytotoxicity was observed for the modified DNRL membranes than the bare DNRL membranes. The in vitro drug release studies using rhodamine B as a model drug, confirmed the utility of the prepared membranes to function as a drug delivery matrix. PMID- 29032214 TI - High surface area mesoporous activated carbon-alginate beads for efficient removal of methylene blue. AB - High surface area mesoporous activated carbon-alginate (AC-alginate) beads were successfully synthesized by entrapping activated carbon powder derived from Mangosteen fruit peel into calcium-alginate beads for methylene blue (MB) removal from aqueous solution. The structure and surface characteristics of AC-alginate beads were analyzed using Fourier transform infra-red (FTIR) spectroscopy, scanning electron microscopy (SEM) and surface area analysis (SBET), while thermal properties were tested using thermogravimetric analysis (TGA). The effect of AC-alginate dose, pH of solution, contact time, initial concentration of MB solution and temperature on MB removal was elucidated. The results showed that the maximum adsorption capacity of 230mg/g was achieved for 100mg/L of MB solution at pH 9.5 and temperature 25 degrees C. Furthermore, the adsorption of MB on AC-alginate beads followed well pseudo-second order equation and equilibrium adsorption data were better fitted by the Freundlich isotherm model. The findings reveal the feasibility of AC-alginate beads composite to be used as a potential and low cost adsorbent for removal of cationic dyes. PMID- 29032215 TI - Determining mushroom tyrosinase inhibition by imidazolium ionic liquids: A spectroscopic and molecular docking study. AB - The inhibition effects of imidazolium ionic liquids (ILs) on the enzyme kinetics of mushroom tyrosinase is reported. A simple UV-VIS spectrophotometric assay was used to measure the reaction kinetics of the reaction between mushroom tyrosinase and L-dopa. Seven different imidazolium ILs, comprised of 1-alkyl-3 methylimidazolium ([Imn1+], n=2, 4, 6) cations paired with several anions that included Cl-, [NO3-], methanesulfonate ([MeSO3-]), trifluoromethanesulfonate (or triflate, [TFMS-]), and bis(trifluoromethylsulfonyl)imide ([Tf2N-]). Lineweaver Burk plots were generated from the recovered kcat and Km parameters using four to six substrate concentrations per measurement. The results show that mushroom tyrosinase activity was consistently inhibited by all of the ILs and that the type of inhibition was non-competitive in nearly all cases. Only the data for [Im21+][Tf2N-] suggested that the inhibition mechanism was competitive with the substrate. Molecular docking simulations were performed using AutoDock4.2 and AutoDock Vina and revealed that all cations docked in the L-dopa active site. Anions showed varied results that included locations both within and outside of the active site. PMID- 29032216 TI - Gelatin - Oxidized carboxymethyl cellulose blend based tubular electrospun scaffold for vascular tissue engineering. AB - The present work deals with the fabrication of electrospun tubular scaffold based on in-situ crosslinked blend of gelatin - oxidized carboxymethyl cellulose (OCMC) for vascular tissue engineering. The flow behavior and spinability of the hydrogel despite the in-situ crosslinked gelatin chains evaluated by Raman spectroscopic studies and rheological studies was utilized for electrospinning. The study highlights the tunable pore size and fiber diameter of the nanofibers with the manipulation of electrospinning parameters. With a future perspective of vascular tissue engineering, the electrospinning parameters yielding smooth bead free fibers and maximum magnitude in pore size and fiber diameter as well their homogenous distribution were selected for the fabrication of tubular constructs which is rarely reported. The surface and mechanical properties were evaluated to validate its properties to the native vessel. Biocompatibility was studied in vitro with BALB/c 3T3 cells and in vivo after subcutaneous implantation in rats. MTT assay confirmed its no-toxicity and no abnormal foreign body reaction were observed by 7 and 15days after implantation. Crosslinking with biocompatible crosslinker OCMC has rendered insolubility to gelatin yet making it spinable for electrospinning to fabricate porous, nanofibrous vascular biomaterial. PMID- 29032217 TI - Preoperative Prediction of the Necessity for Anterior Clinoidectomy During Microsurgical Clipping of Ruptured Posterior Communicating Artery Aneurysms. AB - BACKGROUND: Although most posterior communicating artery (PCoA) aneurysms can be clipped easily with excellent results, some require anterior clinoidectomy for safe and complete clipping. OBJECTIVE: To review our microsurgical series of ruptured PCoA aneurysms and identify the preoperative predictors for anterior clinoidectomy during microsurgical clipping for PCoA aneurysms. METHODS: Results from microsurgical clipping of 104 patients with ruptured PCoA aneurysms were reviewed retrospectively. Distances and angles were obtained from computed tomographic angiography and compared between the anterior and nonanterior clinoidectomy groups. RESULTS: Anterior clinoidectomy was required in 19 of the 104 cases (18%). None developed surgical complications due to anterior clinoid process (ACP) resection, including postoperative visual deficit. Univariate and multivariate analyses revealed that the distances from the ACP tip to the aneurysmal proximal neck and from the ACP line to the aneurysmal proximal neck were statistically significant predictive factors for the need of anterior clinoidectomy. Based on a receiver operating characteristic analysis, the distances from the ACP tip to the aneurysmal proximal neck <4.0 mm and from the ACP line to the aneurysmal proximal neck <=2.0 mm were selected as optimal cutoff values for predicting the necessity of anterior clinoidectomy, and the area under the receiver operating characteristic curve values were 0.991 and 0.955, respectively. CONCLUSIONS: In case of ruptured PCoA aneurysm surgery, the distances from the ACP tip to the aneurysmal proximal neck and from the ACP line to the aneurysmal proximal neck were both found to be useful predictors of whether anterior clinoidectomy was required. PMID- 29032218 TI - The Hypoglossal Nerve: Anatomical Study of Its Entire Course. AB - OBJECTIVE: Only a few anatomic studies of the entire course of the hypoglossal nerve (cranial nerve XII) have been reported. We analyzed all relationships of the 12th nerve with surrounding structures from the brainstem to the tongue through a microscopic perspective. A comprehensive anatomically and clinically oriented classification of its different segments is proposed. METHODS: Ten formalin-fixed adult human cadaveric heads (20 sides) were dissected with the aim to explore the entire course of cranial nerve XII via lateral suboccipital, far lateral partial, or total transcondylar routes. Different segments of the nerve were identified based on the hypoglossal course and its relationship with surrounding structures. Measurements of every portion of the nerve were taken in all specimens during dissection. RESULTS: The hypoglossal nerve was divided into 5 segments: cisternal, intracanalar, descending, horizontal, and ascending. Detailed and comprehensive examination of basic anatomic relationships through the view of different transcranial and endoscope-assisted approaches was performed. A new perspective of the hypoglossal canal is proposed, and the venous plexus surrounding the intracanalar segment of the nerve is described in detail. CONCLUSIONS: Classification of 5 segments for the hypoglossal nerve seems anatomically valid, and it is surgically oriented with respect to all surgical approaches. Precise knowledge of the relationships with the surrounding structures may help to prevent some complications during surgery, and it is useful to explain, segment by segment, the pathogenic mechanisms for nerve injuries that are evidenced by lesions that exist along the entire intracranial and extracranial course. PMID- 29032219 TI - Emergency Extracranial-Intracranial Bypass to Revascularize Salvageable Brain Tissue in Acute Ischemic Stroke Patients. AB - OBJECTIVE: To present an algorithm based on clinical and radiologic factors, including magnetic resonance imaging (MRI) perfusion/diffusion mismatch (PDM), for the indication of urgent cerebral bypass in patients with acute ischemic stroke. METHODS: Clinical and radiologic data of 8 consecutive patients undergoing urgent cerebral revascularization for acute ischemic stroke owing to occlusion of internal carotid or middle cerebral artery between 2012 and 2015 were analyzed. All patients either were ineligible for or failed first-line treatment with emergent endovascular revascularization. Indication for urgent bypass was based on clinical worsening and MRI PDM, indicating threat for stroke extension. Clinical outcome was measured using National Institutes of Health Stroke Scale and modified Rankin Scale before and after bypass surgery, at 3 month follow-up, and at last follow-up. RESULTS: All patients presented with clinical worsening after initiation of acute stroke treatment. Cerebral revascularization was performed 9.6 hours (SD 9.0) after clinical worsening. All patients had preoperative MRI PDM. No bypass complications, such as anastomosis failure or postoperative hemorrhage, occurred. MRI diffusion ratio before and after bypass was stable or improved in 7 patients and progressed in 1 patient without clinical worsening. MRI PDM and perfusion improved in all 4 patients who underwent postoperative MRI. Clinical outcome was favorable with a median improvement of 7 points on National Institutes of Health Stroke Scale and of 2 points on modified Rankin Scale at last follow-up. CONCLUSIONS: Based on an algorithm indicating salvageable brain tissue, cerebral revascularization can be safely performed in an emergency setting in a highly selected group of patients with acute ischemic stroke with favorable clinical outcome. PMID- 29032220 TI - Electrodiagnostic and Advanced Neuroimaging Characterization for Successful Treatment of Spinal Extradural Arachnoid Cyst. AB - BACKGROUND: Spinal extradural arachnoid cysts are relatively uncommon. Rarely, large cysts presented with spinal cord compression requiring surgical intervention. CASE DESCRIPTION: We report a patient with a progressively enlarging spinal extradural arachnoid cyst causing worsening right S1 radiculopathy and gastrocnemius muscle atrophy. Electromyography and nerve conduction studies revealed an S1 motor radiculopathy. Serial magnetic resonance imaging findings confirmed enlargement of the small cyst originating from the sacral thecal sac on the right while 2 smaller cysts on the left remained stable. Dynamic computed tomography myelogram revealed connection to the thecal sac behind the right S1 nerve root. We performed a right hemilaminectomy from L5 to S2, exposed the cyst pedicle ligated it, and marsupialized the cyst. After surgery, the patient showed clinical and electrodiagnostic improvement. CONCLUSION: This case illustrates the principles of timely surgical intervention after advanced diagnostic imaging and electrodiagnostic testing to improve neurologic function and minimize complications. PMID- 29032221 TI - Spontaneous Fusion of S2/S3 Spondyloptosis in an Adult. AB - BACKGROUND: Spondyloptosis is grade V on the Meyerding classification. Traumatic spondyloptosis can occur throughout the spinal column, particularly at junctional levels, and finding an ideal surgical strategy to address it remains a challenge for spinal surgeons. The sacrum is considered a united bone in adults, and sacral intersegmental spondyloptosis is extremely rare. CASE REPORT: Herein, we present an unusual case of S2/S3 spondyloptosis in a 27-year-old female patient with spontaneous solid fusion. CONCLUSIONS: This case demonstrates that similar distal sacral pathologies may be managed conservatively when there is no associated neurologic deficit, and the osteodiskoligamentous integrity of the lumbosacropelvic unit remains intact. Our report plus the very few published papers in the literature illustrate the natural history of uncomplicated traumatic spondyloptosis and support the role of in situ fusion and instrumentation as a reliable alternative to circumferential fusion in patients who cannot tolerate staged or prolonged operations. PMID- 29032222 TI - Molecular mechanisms of nickel induced neurotoxicity and chemoprevention. AB - Nickel (Ni) is widely used in many industrial sectors such as alloy, welding, printing inks, electrical and electronics industries. Excessive environmental or occupational exposure to Ni may result in tumor, contact dermatitis, as well as damages to the nervous system. In recent years, more and more research has demonstrated that Ni induced nerve damages are related to mitochondrial dysfunction. In this paper, we try to characterize Ni induced neurotoxicity as well as the underlying mechanisms, and how to find new drugs for chemoprevention, by reviewing chemicals with neuroprotective effects on Ni induced neurotoxicity. PMID- 29032223 TI - Glyphosate and Roundup(r) alter morphology and behavior in zebrafish. AB - Glyphosate has become the most widely used herbicide in the world, due to the wide scale adoption of transgenic glyphosate resistant crops after its introduction in 1996. Glyphosate may be used alone, but it is commonly applied as an active ingredient of the herbicide Roundup(r). This pesticide contains several adjuvants, which may promote an unknown toxicity. The indiscriminate application poses numerous problems, both for the health of the applicators and consumers, and for the environment, contaminating the soil, water and leading to the death of plants and animals. Zebrafish (Danio rerio) is quickly gaining popularity in behavioral research, because of physiological similarity to mammals, sensitivity to pharmacological factors, robust performance, low cost, short spawning intervals, external fertilization, transparency of embryos through larval stages, and rapid development. The aim of this study was evaluate the effects of glyphosate and Roundup(r) on behavioral and morphological parameters in zebrafish larvae and adults. Zebrafish larvae at 3days post-fertilization and adults were exposed to glyphosate (0.01, 0.065, and 0.5mg/L) or Roundup(r) (0.01, 0.065, and 0.5mg/L) for 96h. Immediately after the exposure, we performed the analysis of locomotor activity, aversive behavior, and morphology for the larvae and exploratory behavior, aggression and inhibitory avoidance memory for adult zebrafish. In zebrafish larvae, there were significant differences in the locomotor activity and aversive behavior after glyphosate or Roundup(r) exposure when compared to the control group. Our findings demonstrated that exposure to glyphosate at the concentration of 0.5mg/L, Roundup(r) at 0.065 or 0.5mg/L reduced the distance traveled, the mean speed and the line crossings in adult zebrafish. A decreased ocular distance was observed for larvae exposed at 0.5mg/L of glyphosate. We verified that at 0.5mg/L of Roundup(r)-treated adult zebrafish demonstrated a significant impairment in memory. Both glyphosate and Roundup(r) reduced aggressive behavior. Our data suggest that there are small differences between the effects induced by glyphosate and Roundup(r), altering morphological and behavioral parameters in zebrafish, suggesting common mechanisms of toxicity and cellular response. PMID- 29032225 TI - Right Ventricular Dysfunction in Acute Myocardial Infarction Complicated by Cardiogenic Shock: A Hemodynamic Analysis of the Should We Emergently Revascularize Occluded Coronaries for Cardiogenic Shock (SHOCK) Trial and Registry. AB - BACKGROUND: The prevalence and significance of right ventricular dysfunction (RVD) in patients with cardiogenic shock due to acute myocardial infarction (AMI CS) have not been well characterized. We hypothesized that RVD is common in AMI CS and associated with worse clinical outcomes. METHODS AND RESULTS: We retrospectively analyzed patients with available hemodynamics enrolled in the Should We Emergently Revascularize Occluded Coronaries for Cardiogenic Shock (SHOCK) trial (n = 139) and registry (n = 258) to identify RVD in AMI-CS. RVD was defined by an elevated central venous pressure (CVP), elevated CVP-pulmonary capillary wedge pressure (PCWP) ratio, decreased pulmonary artery pulsatility index, and decreased right ventricular stroke work index. A P value of <.01 was used to infer significance. In the SHOCK trial and registry, respectively, 38% and 37% of patients had RVD, but RVD was not associated with 30-day or 6-month survival (hazard ratio [HR] 1.51, (99% CI 0.92-2.49; P = .10). RV failure with the use of inclusion criteria from the Recover Right Trial for RV Failure (RR RVF) requiring percutaneous mechanical circulatory support included elevated CVP and CVP/PCWP and a low cardiac index despite >=1 inotrope or vasopressor. In the SHOCK trial and registry, respectively, 45% (n = 63/139) and 38% (n = 98/258) of patients met RR-RVF criteria. The RR-RVF criteria were not significantly associated with 30-day mortality in the registry cohort (HR 1.44, 99% CI 1.01 2.04; P = .04), or in the trial cohort (HR 1.51, 99% CI 0.92-2.49; P = .10). CONCLUSIONS: Hemodynamically defined RVD is common in AMI-CS. Routine assessment with pulmonary artery catherization allows detection of RVD; however, further work is needed to identify interventions that will result in improved outcomes for these patients. PMID- 29032224 TI - Limitations of oxygen delivery to cells in culture: An underappreciated problem in basic and translational research. AB - Molecular oxygen is one of the most important variables in modern cell culture systems. Fluctuations in its concentration can affect cell growth, differentiation, signaling, and free radical production. In order to maintain culture viability, experimental validity, and reproducibility, it is imperative that oxygen levels be consistently maintained within physiological "normoxic" limits. Use of the term normoxia, however, is not consistent among scientists who experiment in cell culture. It is typically used to describe the atmospheric conditions of a standard incubator, not the true microenvironment to which the cells are exposed. This error may lead to the situation where cells grown in a standard "normoxic" oxygen concentration may actually be experiencing a wide range of conditions ranging from hyperoxia to near-anoxic conditions at the cellular level. This apparent paradox is created by oxygen's sluggish rate of diffusion through aqueous medium, and the generally underappreciated effects that cell density, media volume, and barometric pressure can have on pericellular oxygen concentration in a cell culture system. This review aims to provide an overview of this phenomenon we have termed "consumptive oxygen depletion" (COD), and includes a basic review of the physics, potential consequences, and alternative culture methods currently available to help circumvent this largely unrecognized problem. PMID- 29032226 TI - Maternal depressive symptoms linked to reduced fecal Immunoglobulin A concentrations in infants. AB - Secretory Immunoglobulin A (sIgA) plays a critical role to infant gut mucosal immunity. Delayed IgA production is associated with greater risk of allergic disease. Murine models of stressful events during pregnancy and infancy show alterations in gut immunity and microbial composition in offspring, but little is known about the stress-microbiome-immunity pathways in humans. We investigated differences in infant fecal sIgA concentrations according to the presence of maternal depressive symptoms during and after pregnancy. A subsample of 403 term infants from the Canadian Healthy Infant Longitudinal Development (CHILD) cohort were studied. Their mothers completed the Center of Epidemiologic Studies Depression Scale when enrolled prenatally and again postpartum. Quantified by Immundiagnostik sIgA ELISA kit, sIgA from infant stool was compared across maternal depressive symptom categories using Mann-Whitney U-tests and logistic regression models that controlled for various covariates. Twelve percent of women reported clinically significant depressive symptoms only prenatally, 8.7% had only postpartum symptoms and 9.2% had symptoms both pre and postnatally. Infants born to mothers with pre and postnatal symptoms had significantly lower median sIgA concentrations than those in the reference group (4.4 mg/g feces vs. 6.3 mg/g feces; p = 0.033). The odds for sIgA concentrations in the lowest quartile was threefold higher (95% CI: 1.25-7.55) when mothers had pre and postnatal symptoms, after controlling for breastfeeding status, infant age, antibiotics exposure and other covariates. Postnatal symptoms were not associated with fecal sIgA, independently of breastfeeding status. Infants born to mothers with depressive symptoms appear to have lower fecal sIgA concentrations, predisposing them to higher risk for allergic disease. PMID- 29032227 TI - Effectiveness of photodynamic therapy associated with irrigants over two biofilm models. AB - BACKGROUND: This study aimed to evaluate the antibacterial effect and the biofilm disruption promoted by antimicrobial photodynamic therapy (aPDT) associated with sodium hypochlorite (NaOCl) and chlorexidine (CHX) over monospecies and multispecies biofilms. METHODS: In monospecies model, forty-six premolars were inoculated with Enterococcus faecalis for 21days and divided into three groups: saline, CHX and NaOCl. After irrigation, aPDT was performed. Samples were collected at baseline (S1) and after irrigation (S2) and aPDT (S3). Colony forming unit (CFU) counts were performed. In multispecies model, sixty bovine dentin blocks were infected intraorally for 72h and divided into six groups: saline, saline/aPDT, CHX, CHX/aPDT, NaOCl and NaOCl/aPDT. The percentage and the biovolume of live cells and the total biovolume were assessed using confocal laser scanning microscopy. RESULTS: CHX and NaOCl showed the lowest CFU counts (P<0.05). aPDT reduced the bacterial counts in saline (S2-S3; P<0.05). The lowest amount of live cells was observed in CHX, CHX/aPDT, NaOCl and NaOCl/aPDT. aPDT did not reduce the total biovolume (P>0.05). CONCLUSION: aPDT associated with saline reduced the bacterial load in root canals infected with E. faecalis. aPDT did not reduce the total biovolume in situ; however, the irrigant was decisive to disrupt multispecies biofilms. PMID- 29032228 TI - Hidden Malefactor: Occult Foreign Body in Diabetic Foot. PMID- 29032229 TI - Sulfonylureas as Initial Treatment for Type 2 Diabetes and the Risk of Severe Hypoglycemia. AB - PURPOSE: The magnitude of the risk of severe hypoglycemia associated with sulfonylureas as the initial treatment for type 2 diabetes in the real-world setting is unknown. We assessed the risk of severe hypoglycemia associated with initiating monotherapy with sulfonylurea compared with metformin for the treatment of type 2 diabetes. METHODS: By using the UK Clinical Practice Research Datalink and Hospital Episode Statistics linked to the Office for National Statistics, we identified a cohort of patients with type 2 diabetes who initiated sulfonylureas or metformin monotherapy between April 1, 1998, and December 31, 2012, with follow-up until December 31, 2013. Sulfonylurea users were matched one to-one to metformin users by high-dimensional propensity scores. Hazard ratios (HRs) and 95% confidence intervals (CIs) of severe hypoglycemia, defined as requiring hospitalization, were estimated using Cox proportional hazards models comparing sulfonylureas with metformin monotherapy. RESULTS: The study cohort consisted of 14,012 initiators of sulfonylureas matched to 14,012 initiators of metformin. The mean treated follow-up time was 1.41 (standard deviation, 1.84) years. Use of sulfonylurea was associated with an elevated incidence of severe hypoglycemia compared with metformin as the initiating monotherapy for type 2 diabetes (incidence rate, 2.4/1000 person-years; 95% CI, 1.90-2.90; HR, 4.53; 95% CI, 2.76-7.45). CONCLUSIONS: Sulfonylureas, when prescribed as the initiating monotherapy for the treatment of type 2 diabetes, is associated with a 4.5-fold increase in the risk of severe hypoglycemia. Given the negative consequences of this outcome, clinicians should consider alternative hypoglycemic agents when metformin is not tolerated or contraindicated. PMID- 29032230 TI - Schistosoma haematobium in Urine Cytology: Diagnosis Is Possible. PMID- 29032231 TI - Schistosoma japonicum Presenting as Colon Polyps. PMID- 29032232 TI - Incremental Role of 3-Dimensional Echocardiography in Orthostatic Dyspnea. PMID- 29032233 TI - Proteome-wide prediction and annotation of mitochondrial and sub-mitochondrial proteins by incorporating domain information. AB - Mitochondrion is one of the most important subcellular organelle of eukaryotic cells. It carries out several biochemical functions that are extremely vital for cells. Defects in mitochondria also play an important role in the development and progression of different types of cancer. Therefore knowledge of complete mitochondrial protein repertoire is essential to understand overall mitochondrial functionality, maintenance, dynamics and metabolism. It would be of a great practical significance to develop an automated and reliable approach that can identify the mitochondrial proteins and their sub-mitochondrial location. In the present study, we report a two level prediction method, named as SubMitoPred, which predicts mitochondrial proteins (at first level) and their sub mitochondrial localization (at second level). Our approach is based on combined usage of Pfam domain information and support vector machine model. During training we achieved an overall prediction accuracy of 94.37% at first level while at the second level a prediction accuracy of 74.91% for inner membrane, 82.98% for outer membrane, 71.23% for inter-membrane space and 81.58% accuracy was achieved for matrix. Evaluation on independent data shows better performance of SubMitoPred. Benchmarking showed that SubMitoPred performed better than other existing methods. We also annotated human proteome using SubMitoPred. We also developed a freely accessible web-server as well as standalone software for the use of scientific community, which is available at http://proteininformatics.org/mkumar/submitopred/. PMID- 29032234 TI - Saccharomyces cerevisiae Mhr1 can bind Xho I-induced mitochondrial DNA double strand breaks in vivo. AB - Mitochondrial DNA (mtDNA) double-strand break (DSB) repair is essential for maintaining mtDNA integrity, but little is known about the proteins involved in mtDNA DSB repair. Here, we utilize Saccharomyces cerevisiae as a eukaryotic model to identify proteins involved in mtDNA DSB repair. We show that Mhr1, a protein known to possess homologous DNA pairing activity in vitro, binds to mtDNA DSBs in vivo, indicating its involvement in mtDNA DSB repair. Our data also indicate that Yku80, a protein previously implicated in mtDNA DSB repair, does not compete with Mhr1 for binding to mtDNA DSBs. In fact, C-terminally tagged Yku80 could not be detected in yeast mitochondrial extracts. Therefore, we conclude that Mhr1, but not Yku80, is a potential mtDNA DSB repair factor in yeast. PMID- 29032236 TI - Renal Trauma in Pediatrics: A Current Review. AB - Children are at increased risk of renal injuries from blunt trauma. Four-phase computed tomography with intravenous contrast (noncontrast, arterial, nephrographic, and pyelographic phases) is the choice for initial imaging, although ultrasonography might also be used in children with minimal symptoms. The American Association for the Surgery of Trauma developed the known system for renal injury grading, which was modified in 2011. The management of pediatric renal injuries has largely shifted toward conservative means. However, as long as the child remains hemodynamically unstable, renal exploration might be necessary. There is a trend toward managing high-grade injuries with interventional radiography procedures. PMID- 29032235 TI - Variation in Radiologic and Urologic Computed Tomography Interpretation of Urinary Tract Stone Burden: Results From the Registry for Stones of the Kidney and Ureter. AB - OBJECTIVE: To compare the measured stone burden recorded between urologists and radiologists, and examine how these differences could potentially impact stone management. As current urologic stone surgery guideline recommendations are based on stone size, accurate stone measurements are crucial to direct appropriate treatment. This study investigated the discrepant interpretation that often exists between urologic surgeons and radiologists' estimation of patient urinary stone burden. MATERIALS AND METHODS: From November 2015 through August 2016, new patients prospectively enrolled into the Registry for Stones of the Kidney and Ureter (ReSKU) were included if they had computed tomography images available and an accompanying official radiologic report at the time of their urologist provider visit. Stone number and aggregate stone size were compared between the urologic interpretation and the corresponding radiologic reports. RESULTS: Of 219 patients who met the inclusion criteria, concordance between urologic and radiologic assessment of aggregate stone size was higher for single stone sizing (63%) compared with multiple stones (32%). Statistical significance was found in comparing the mean difference in aggregate stone size for single and multiple stones (P <.01). Over 33% of stone-containing renal units had a radiologic report with an unclear size estimation or size discrepancy that could lead to non guideline-driven surgical management. CONCLUSION: Significant variation exists between urologic and radiologic computed tomography interpretations of stone burden. Urologists should personally review patient imaging when considering stone surgical management. A standardized method for measuring and reporting stone parameters is needed among urologists and radiologists. PMID- 29032237 TI - Hospital Charges and Length of Stay Following Radical Cystectomy in the Enhanced Recovery After Surgery Era. AB - OBJECTIVE: To report our center's experience with enhanced recovery after surgery (ERAS) pathway for radical cystectomy (RC), specifically evaluating complications, LOS, 30- and 90-day readmissions, and hospital charges. Pathways of this type have been shown to decrease the length of stay (LOS) and postoperative ileus. However, concerns persist that ERAS is costly and increases readmissions. To date, limited studies have evaluated these concerns. MATERIALS AND METHODS: Our ERAS protocol was implemented for RC in December 2015. Outcomes in ERAS patients were compared with those in RC patients from the time period before ERAS. Patients were excluded if they underwent concomitant nephroureterectomy. RESULTS: Fifty-six consecutive ERAS patients were compared with 54 pre-ERAS patients. The median charge for index hospitalization was $31,090 in the ERAS group and $35,489 in the pre-ERAS group (P = .036). The median LOS was 5.0 days in the ERAS group and 8.5 days in the pre-ERAS group (P = < .001). The pre-ERAS group had a significantly increased use of nasogastric tube (13.8% vs 30.0%) and parenteral nutrition (6.9% vs 20.4%). The overall complication rate (including infectious, renal, deep vein thrombosis and pulmonary embolism, myocardial infarction and stroke, and respiratory and gastrointestinal-related complications) was similar between the 2 groups (51.7% in the ERAS group and 62.0% in the pre-ERAS group, P = .28). Thirty- and 90-day readmissions also remained similar (19.0% vs 14.8%, P = .55, and 31.0% vs 27.7%, P = .64). The most common readmission reason was infection, specifically urinary tract infection. CONCLUSION: Implementation of the ERAS pathway at our center resulted in significantly reduced LOS and total hospital charge, with comparable rates of complication and readmission, highlighting the need for ERAS pathways in patients undergoing RC. PMID- 29032238 TI - Prostate-specific Antigen Density Is a Good Predictor of Upstaging and Upgrading, According to the New Grading System: The Keys We Are Seeking May Be Already in Our Pocket. AB - OBJECTIVE: To analyze the performance of prostate-specific antigen density (PSAD) as a predictor of upstaging and prognostic grade group (PGG) upgrading. MATERIALS AND METHODS: We retrospectively evaluated data on men with prostate cancer (PCa) treated with robot-assisted laparoscopic radical prostatectomy (RALP) at our center in 2014-2015. Preoperative PSAD was calculated. Bioptic and pathologic PGGs were also considered in the analysis. We defined upgrading as any increase in PGG after RALP; upstaging was the pathologic diagnosis of a clinically unsuspected stage >=3a PCa. RESULTS: Data on 379 patients were analyzed. Upgrading was found in 41.4% of the patients; 29% of the patients were upstaged. On multivariable analysis, core involvement and PSAD were found to be predictors of upgrading (odds ratio [OR] 1.017, 95% confidence interval [CI] 1.001-1.034, P = .039; and OR 3.638, 95% CI 1.084-12.207, P = .001, respectively). Furthermore, core involvement and PSAD were predictors of upstaging (OR 1.020, 95% CI 1.020 1.034, P = .003; and OR 5.656, 95% CI 1.285-24.894, P = .022, respectively). PSAD showed areas under the curve of 0.712 (95% CI 0.645-0.780, P = .000) and 0.628 (95% CI 0.566-0.689, P = .000) for the prediction of upgrading and upstaging, respectively. In a subpopulation of 90 patients theoretically eligible for active surveillance, 14% were found upstaged and 17% were upgraded. PSAD showed areas under the curve of 0.894 (95% CI 0.808-0.97, P = .000) and 0.689 (95% CI 0.539 0.840, P = .021) for the prediction of upgrading and upstaging, respectively. CONCLUSION: PSAD is a valuable predictor of upgrading and upstaging in men with PCa who were candidates for surgery and is accurate in selecting patients for AS. PMID- 29032239 TI - Outcomes Following Clinical Complete Response to Neoadjuvant Chemotherapy for Muscle-invasive Urothelial Carcinoma of the Bladder in Patients Refusing Radical Cystectomy. AB - OBJECTIVE: To investigate survival outcomes of patients with muscle-invasive bladder cancer (MIBC) that demonstrate complete clinical response (cT0) to neoadjuvant chemotherapy (NAC) and then reject subsequent radical cystectomy (RC). METHODS: A retrospective chart review identified patients with MIBC who were cT0 after platinum-based NAC. cT0 was defined as negative cytology, cystoscopy with transurethral resection of bladder tumor, and imaging. cT0 patients refusing for RC were followed up with cytology, cystoscopy with biopsy, and cross-sectional imaging. RESULTS: Forty-eight patients were identified with MIBC that were cT0 after NAC. Seven patients underwent immediate RC, whereas 41 elected bladder preservation with close surveillance. Of those remaining 41 patients, mean age was 68 +/- 11 years with median follow-up of 35 months. NAC regimens were 46% methotrexate/vinblastine/doxorubicin/cisplatin, 39% gemcitabine/cisplatin, and 15% other platinum-based therapies. Five-year cancer specific survival was 87%, disease-free survival was 58%, and cystectomy-free survival was 79%. A total of 19 patients (46%) relapsed with 5.4-month median recurrence time. CONCLUSION: Bladder preservation may be a reasonable option in a highly select subset of patients with MIBC who are complete clinical responders after NAC. For those patients that were cT0 after NAC and refused or were ineligible for RC, 5-year disease-free survival was nearly 60% and cancer specific survival was nearly 90%. Future studies should focus on identifying clinical and molecular factors associated with a durable pathologic complete response after NAC. PMID- 29032240 TI - Natural History and Conservative Treatment Outcomes for Hydroceles: A Retrospective Review of One Center's Experience. AB - OBJECTIVE: To elucidate epidemiological data and hydrocele progression, we reviewed pediatric patients diagnosed with hydroceles in our institution retrospectively. MATERIALS AND METHODS: We reviewed data from 355 pediatric patients with hydroceles. Questionnaires regarding age at diagnosis, time of delivery, presence of hydroceles in the father and brothers, age at recovery, age at surgery, cause of hydrocele (if present), type of hydrocele, associated pathologies, treatments, and posthydrocelectomy complications were completed by reviewing patients' medical records and interviewing their families. RESULTS: Patients with congenital hydroceles were more frequently born prematurely (32.5%) than were patients with noncongenital hydroceles (15.9%; P = .001). Fathers of 10 patients (3.7%) and brothers of 21 patients (7.7%) also had hydroceles. Hydroceles were associated with inguinal hernias on the same side (12.2%), cryptorchidism (7.5%), varicoceles (6.0%), and testis torsion (0.5%). Among patients aged >1 year (n = 185), 27 did not undergo operations and healed spontaneously at an average of 5.30 +/- 3.36 months. For children aged >1 year who did not undergo surgery, the rate of spontaneous recovery within 6 months was 77.8% and that within 1 year was 96.3%. CONCLUSION: Until strong evidence of hydrocele-induced testicular damage in children arises, we recommend following up congenital hydroceles until at least 1 year and preferably 2 years of age. We recommend following up noncongenital hydroceles for at least 6 months and preferably 1 year if there is no associated pathology indicating the need for earlier surgery such as an inguinal hernia, cryptorchidism, tense hydrocele, testis torsion, or testis mass. PMID- 29032242 TI - Combination of vitamin B12 active forms improved fetal growth in Wistar rats through up-regulation of placental miR-16 and miR-21 levels. AB - AIM: Epidemiological studies have indicated importance of folate and vitamin (B12) during pregnancy. Also available evidence on efficacy of B12 forms viz. Cyanocobalamin (Cbl), Methylcobalamin (MeCbl), Adenosylcobalamin (AdCbl) and Hydroxycobalamin (HCbl) in preventing or treating cobalamin deficiency is limited. The present study examines the effect of various forms of B12 in combination with folate during pregnancy and their effect on gestational outcomes. MAIN METHOD: In the present study, we examined the effect of various vitamin B12 forms in presence of recommended folate (RFol: 400MUg/day) and high folate (HFol: 5mg/day) on gestational outcomes in female Wistar rats. FINDINGS: Dams dosed with excessive folate (HFol group) delivered low birth weight (LBW) offsprings (p<0.01) as compared to RFol dams. Plasma homocysteine levels were found to be significantly higher (p<0.05) in dams of HFol group and were reduced after vitamin B12 supplementation. Excessive folate supplementation and homocysteine levels showed inverse association with placental weight (p<0.01) and placental efficiency (p<0.05). B12 supplementation significantly up-regulated placental miR-16 and miR-21, associated with fetal growth which in turn reflected in improved birthweights. Supplementation with vitamin B12 forms, especially combination of active forms of cobalamins: MeCbl+AdCbl significantly increased birth weights (p<0.05) and modulated gestational outcomes in RFol as well as HFol supplemented dams. SIGNIFICANCE: Our results indicated supplementing vitamin B12 along with folate during pregnancy had positive impact on the gestational outcomes. We have shown for the first time that combination of active forms of vitamin B12: MeCbl+AdCbl has better efficacy as compared to Cbl, MeCbl, AdCbl and HCbl alone. PMID- 29032243 TI - DNA methylation patterns are related to co-morbidity status and circulating C reactive protein levels in the nursing home elderly. AB - Elderly residents of long-term care commonly exhibit a number of age-related health deficits, including impaired physical and cognitive function, chronic illnesses, and chronic inflammation. Given our previous data relating the phenotype and function of innate and adaptive leukocytes from the nursing home elderly to chronic conditions and inflammatory biomarkers, we hypothesized that these factors would influence the regulatory programming of immune cells, thereby contributing to immune dysfunction. Since DNA methylation represents both an important regulatory mechanism of cells as well as a biomarker of health and disease, we sought to characterize the methylome of peripheral blood mononuclear cells (PBMCs) from the nursing home elderly (n=23; 82-98years old, 70% female), and compare these patterns to pathological factors such as dementia, co-morbidity score and frailty, and immune-related factors such as serum C-reactive protein (CRP) and cytokine levels and varicella-zoster virus (VZV) vaccine responsiveness. We show that the most significant changes in DNA methylation levels occurred in relation to co-morbidity score, including one site, cg07725579 (FDR-adjusted p<0.05; closest gene, SIRBP2), and nine DNA methylation regions (Stouffer's p<0.05). DNA methylation age, although not strongly correlated with chronological age, was positively correlated with serum CRP levels (p=0.007), and negatively correlated with vaccine responsiveness (p=0.035). To our knowledge, this study is one of the first to describe associations of DNA methylation patterns with pathological and immune-related factors in residents of long-term care, and may provide important clues pertaining to immune cell dysfunction near the end of life. PMID- 29032241 TI - beta-1,3-Glucan recognition protein 3 activates the prophenoloxidase system in response to bacterial infection in Ostrinia furnacalis Guenee. AB - Pattern recognition receptors (PRRs) are biosensor proteins that bind to non-self pathogen associated molecular patterns (PAMPs). beta-1,3-glucan recognition proteins (betaGRPs) play an essential role in immune recognition and signaling pathway of insect innate immunity. Here, we report the cloning and characterization of cDNA of OfbetaGRP3 from Ostrinia furnacalis larvae. The OfbetaGRP3 contains 1455 bp open reading frame, encoding a predicted 484 amino acid residue protein. In hemocytes, the expression levels of OfbetaGRP3 in Escherichia coli-challenged group were higher than those of Bacillus subtilis challenged group at 2, 4, 8, 10 and 12 h post injection (HPI). In fat body, OfbetaGRP3 expression in both B. subtilis and E. coli-challenged group was significantly higher than that in untreated group from 4 to 10 HPI, and then the expression continuously dropped from 12 to 36 HPI. The OfbetaGRP3 expression in laminarin-injected group was higher than that in lipopolysaccharides (LPS) injected group in various test tissues from 4 to 24 HPI. The LT50 of E. coli infected OfbetaGRP3-RNAi larvae (1.0 days) was significantly lower compared with that of E. coli infected wild-type larvae (3.0 days) (p < 0.01). Only 10.2% Sephadex G50 beads (degree 3) were completely melanized in the larvae inoculated with OfbetaGRP3 dsRNA, as compared to 48.8% in control larvae (p < 0.01). A notable reduction in the PO activity and IEARase activity in hemolymph was also detected in the OfbetaGRP3 knockdown larvae. Our study demonstrates that OfbetaGRP3 is one of PRR members involved the PPO-activating system in O. furnacalis larvae. PMID- 29032244 TI - The impact of SPARC on age-related cardiac dysfunction and fibrosis in Drosophila. AB - Tissue fibrosis, an accumulation of extracellular matrix proteins such as collagen, accompanies cardiac ageing in humans and this is linked to an increased risk of cardiac failure. The mechanisms driving age-related tissue fibrosis and cardiac dysfunction are unclear, yet clinically important. Drosophila is amenable to the study of cardiac ageing as well as collagen deposition; however it is unclear whether collagen accumulates in the ageing Drosophila heart. This work examined collagen deposition and cardiac function in ageing Drosophila, in the context of reduced expression of collagen-interacting protein SPARC (Secreted Protein Acidic and Rich in Cysteine) an evolutionarily conserved protein linked with fibrosis. Heart function was measured using high frame rate videomicroscopy. Collagen deposition was monitored using a fluorescently-tagged collagen IV reporter (encoded by the Viking gene) and staining of the cardiac collagen, Pericardin. The Drosophila heart accumulated collagen IV and Pericardin as flies aged. Associated with this was a decline in cardiac function. SPARC heterozygous flies lived longer than controls and showed little to no age-related cardiac dysfunction. As flies of both genotypes aged, cardiac levels of collagen IV (Viking) and Pericardin increased similarly. Over-expression of SPARC caused cardiomyopathy and increased Pericardin deposition. The findings demonstrate that, like humans, the Drosophila heart develops a fibrosis-like phenotype as it ages. Although having no gross impact on collagen accumulation, reduced SPARC expression extended Drosophila lifespan and cardiac health span. It is proposed that cardiac fibrosis in humans may develop due to the activation of conserved mechanisms and that SPARC may mediate cardiac ageing by mechanisms more subtle than gross accumulation of collagen. PMID- 29032245 TI - A simple technique investigating baseline heterogeneity helped to eliminate potential bias in meta-analyses. AB - OBJECTIVES: To perform a worked example of an approach that can be used to identify and remove potentially biased trials from meta-analyses via the analysis of baseline variables. STUDY DESIGN: True randomisation produces treatment groups that differ only by chance; therefore, a meta-analysis of a baseline measurement should produce no overall difference and zero heterogeneity. A meta-analysis from the British Medical Journal, known to contain significant heterogeneity and imbalance in baseline age, was chosen. Meta-analyses of baseline variables were performed and trials systematically removed, starting with those with the largest t-statistic, until the I2 measure of heterogeneity became 0%, then the outcome meta-analysis repeated with only the remaining trials as a sensitivity check. CONCLUSION: We argue that heterogeneity in a meta-analysis of baseline variables should not exist, and therefore removing trials which contribute to heterogeneity from a meta-analysis will produce a more valid result. In our example none of the overall outcomes changed when studies contributing to heterogeneity were removed. We recommend routine use of this technique, using age and a second baseline variable predictive of outcome for the particular study chosen, to help eliminate potential bias in meta-analyses. PMID- 29032247 TI - Specifications of Targeting Heterochromatin Modifications in Plants. AB - Plants encode a diverse repertoire of DNA methyltransferases that have specialized to target cytosines for methylation in specific sequence contexts. These include the de novo methyltransferase, DOMAINS REARRANGED METHYLTRANSFERASE 2 (DRM2), which methylates cytosines in all sequence contexts through an RNA guided process, the CHROMOMETHYLASES (CMTs), which methylate CHH and CHG cytosines (where H is A, T, or C), and METHYLTRANSFERASE 1 (MET1), which maintains methylation of symmetrical CG contexts. In this review, we discuss the sequence specificities and targeting of each of these pathways. In particular, we highlight recent studies that indicate CMTs preferentially target CWG or CWA/CAW motifs (where W is A or T), and discuss how self-reinforcing feedback loops between DNA methyltransferases and histone modifications characteristic of heterochromatin specify targeting. Finally, the initiating events that lead to gene body methylation are discussed as a model illustrating how interdependent targeting of different silencing pathways can potentiate the establishment of off target epialleles. PMID- 29032246 TI - Transcriptional regulation of the cyclin-dependent kinase inhibitor, p21CIP1/WAF1, by the chelator, Dp44mT. AB - BACKGROUND: The cyclin-dependent kinase inhibitor, p21, is well known for its role in cell cycle arrest. Novel anti-cancer agents that deplete iron pools demonstrate marked anti-tumor activity and are also active in regulating p21 expression. These agents induce p21 mRNA levels independently of the tumor suppressor, p53, and differentially regulate p21 protein expression depending on the cell-type. Several chelators, including an analogue of the potent anti-tumor agent, di-2-pyridylketone 4,4-dimethyl-3-thiosemicarbazone (Dp44mT), have entered clinical trials, and thus, their molecular mechanism of action is crucial to assess. Hence, this investigation examined how several iron chelators transcriptionally regulate p21. METHODS: Promoter-deletion constructs; luciferase assays; RT-PCR; western analysis; gene silencing; co-immunoprecipitation. RESULTS: The transcriptional regulation of the p21 promoter by iron chelators was demonstrated to be dependent on the chelator and cell-type examined. The potent anti-cancer chelator, Dp44mT, induced p21 promoter activity in SK-MEL-28 melanoma cells, but not in MCF-7 breast cancer cells. Further analysis of the p21 promoter identified a 50-bp region between -104 and -56-bp that was required for Dp44mT induced activation in SK-MEL-28 cells. This region contained several Sp1-binding sites and mutational analysis of this region revealed the Sp1-3-binding site played a significant role in Dp44mT-induced activation of p21. Further, co immunoprecipitation demonstrated that Dp44mT induced a marked increase in the interactions between Sp1 and the transcription factors, estrogen receptor-alpha and c-Jun. CONCLUSIONS AND GENERAL SIGNIFICANCE: Dp44mT-induced p21 promoter activation via the Sp1-3-binding site and increased Sp1/ER-alpha and Sp1/c-Jun complex formation in SK-MEL-28 cells, suggesting these complexes were involved in p21 promoter activation. PMID- 29032249 TI - High prevalence of sacrococcygeal pilonidal sinus disease in patients with ankylosing spondylitis. PMID- 29032248 TI - A Critical Role of AMT2;1 in Root-To-Shoot Translocation of Ammonium in Arabidopsis. AB - Ammonium uptake in plant roots is mediated by AMT/MEP/Rh-type ammonium transporters. Out of five AMTs being expressed in Arabidopsis roots, four AMT1 type transporters contribute to ammonium uptake, whereas no physiological function has so far been assigned to the only homolog belonging to the MEP subfamily, AMT2;1. Based on the observation that under ammonium supply, the transcript levels of AMT2;1 increased and its promoter activity shifted preferentially to the pericycle, we assessed the contribution of AMT2;1 to xylem loading. When exposed to 15N-labeled ammonium, amt2;1 mutant lines translocated less tracer to the shoots and contained less ammonium in the xylem sap. Moreover, in an amt1;1 amt1;2 amt1;3 amt2;1 quadruple mutant (qko), co-expression of AMT2;1 with either AMT1;2 or AMT1;3 significantly enhanced 15N translocation to shoots, indicating a cooperative action between AMT2;1 and AMT1 transporters. Under N deficiency, proAMT2;1-GFP lines showed enhanced promoter activity predominantly in cortical root cells, which coincided with elevated ammonium influx conferred by AMT2;1 at millimolar substrate concentrations. Our results indicate that in addition to contributing moderately to root uptake in the low-affinity range, AMT2;1 functions mainly in root-to-shoot translocation of ammonium, depending on its cell-type-specific expression in response to the plant nutritional status and to local ammonium gradients. PMID- 29032250 TI - Of Mice and Women: A Laparoscopic Mouse Model for Endometriosis. AB - STUDY OBJECTIVE: To demonstrate how a novel laparoscopic approach allows the development of a mouse model for endometriosis after seeding menstrual endometrium from donor mice into the abdominal cavity of syngeneic recipient mice. DESIGN: A step-by-step video description of the techniques used to adapt the estrous cycle of mice towards a menstrual cycle and to subsequently induce endometriosis via laparoscopic seeding of menstrual endometrium. SETTING: University research institute. ETHICS: All animal experiments were ethically approved by KU Leuven, Belgium (ethical approval number: P031/2013). INTERVENTIONS, MEASUREMENTS, AND MAIN RESULTS: Oophorectomized female C57BL/6JRj mice received a series of estrogen injections. Next, a progesterone pellet was administered, together with a second series of estrogen injections. In addition, decidualization of the endometrium was induced with an intrauterine sesame oil stimulus. Four days later the progesterone pellet was removed and menstruation started [1]. Five hours after the progesterone pellet was removal the uterus was harvested, and the menstrual endometrium was dissected and seeded into the abdominal cavity of syngeneic recipient mice to induce endometriosis [2] using a laparoscopic approach [3]. Uterus and lesions were removed from the recipient mice 1 week after induction, and tissues were immunohistochemically stained for H&E, vimentin, and cytokeratin. CONCLUSION: In this video we show a novel methodology to induce endometriosis in mice using laparoscopic inoculation of syngeneic menstrual endometrium, mimicking Sampson's theory of retrograde menstruation [4]. Compared with currently available rodent models, our model offers a less invasive and more physiologic way for fundamental and preclinical endometriosis research, with a high endometriosis incidence and lesion take rate. PMID- 29032251 TI - Laparoscopic Isthmocele Repair with Hysteroscopic Assistance. AB - OBJECTIVE: To demonstrate our experience with hysteroscopic assistance in the laparoscopic repair of an isthmocele. DESIGN: Surgical video article (Canadian Task Force classification III). SETTING: University hospital. INTERVENTION: A 42 year-old woman with a history of previous caesarean section presented as an emergency with a large, seriously infected isthmocele. Once the infection was cured with antibiotics, sonography revealed a 23 * 14-mm isthmocele with 1.4-mm residual myometrium thickness. She reported postmenstrual spotting and dysmenorrhea of several years duration, as well as previous dyspareunia that had worsened after her cesarean section. Given her symptomatic isthmocele with thin residual myometrium and desire for childbearing, laparoscopic repair was offered. First, the bladder was dissected to expose the isthmus. Uterine arteries were dissected. Hysteroscopic guidance and transillumination revealed the edges of the defect. The isthmocele and fibrotic tissue were excised with cold scissors, minimizing cauterization. A hysterometer was placed in the uterine cavity to respect the cervical canal and posterior uterine wall, and the myometrium was then closed in 2 layers. The total surgical time was 120 minutes. The postoperative period was uneventful. At 2 months after surgery, sonography confirmed restoration, with a myometrium thickness of 8.3 mm. The patient was asymptomatic, except for dyspareunia. At 6 months after surgery, hysteroscopic examination was normal. We recommended that the patient avoid attempting pregnancy for 9 months. CONCLUSION: Hysteroscopic simultaneous assistance during laparoscopic isthmocele repair can be of great help in identifying the edges of the defect, especially in large cavities and in first cases, in which edges might not be clear otherwise. Resecting all of the fibrotic tissue while respecting healthy myometrium is essential. Excessive cauterization and ischemic suturing could prevent proper healing of the myometrium. PMID- 29032252 TI - Comparison of Industry-Leading Energy Devices for Use in Gynecologic Laparoscopy: Articulating ENSEAL versus LigaSure Energy Devices. AB - STUDY OBJECTIVE: To compare 2 laparoscopic bipolar electrosurgical devices used in total laparoscopic hysterectomy (TLH). An articulating advanced bipolar device (ENSEAL G2; Ethicon Endo-Surgery, Cincinnati, OH) and an electrothermal bipolar vessel sealer (LigaSure; Medtronic, Minneapolis, MN) were analyzed for differences in surgeon perception of ease of instrument use and workload using the NASA Raw Task Load Index (RTLX) scale. A second objective was to examine differences in operative time, estimated blood loss (EBL), and perioperative complication rates between the 2 devices. DESIGN: Single-institution, single blinded, randomized controlled trial (Canadian Task Force classification I). SETTING: Division of Minimally Invasive Gynecologic Surgery in a university hospital. PATIENTS: Eligibility required planned TLH, over age 18 years, and able to give informed consent; exclusions were stage III or IV endometriosis, known gynecologic malignancy, and early decision for conversion to laparotomy. One hundred seventy-eight patients screened, 142 enrolled, 2 withdrew, and 140 completed the study. Patients were followed 1 month postoperatively. INTERVENTIONS: Preoperative randomization to articulating advanced bipolar device or electrothermal bipolar vessel sealer to be used during TLH. MEASUREMENTS AND MAIN RESULTS: At the end of each hysterectomy the primary surgeon completed an ergonomic assessment tool, the RTLX. Results were analyzed to detect differences in workload between the 2 devices. For each case the time to ligation of the bilateral uterine arteries, EBL, and complications (including device failure, blood transfusion, or other injury) were recorded. Statistical analysis was performed using the t test for normally distributed data, chi2 test for categorical data, and Mann-Whitney U-test for nonparametric data. There were no differences in age, body mass index, parity, prior surgery, uterine weight, race, indication, pathology, and comorbidities between the 2 groups. A statistically significant increase in RTLX scores (p < .0001), device failures (p = .0031), and time to ligation of bilateral uterine arteries (p = .0281) was noted in the articulating device group. No significant differences in EBL or complication rates were noted between the groups. CONCLUSIONS: The articulating advanced bipolar device was shown to have a statistically significant increase in surgeon perceived workload and rate of device failure when used in TLH; however, clinical and surgical outcomes were equivalent. PMID- 29032253 TI - Laparoscopic Dissection of Extensive Secondary Disseminated Peritoneal Leiomyomatosis. AB - STUDY OBJECTIVE: To demonstrate a minimal invasive surgical (MIS) technique for curative excision of extensive secondary disseminated peritoneal leiomyomatosis (DPL). DESIGN: The Institutional Review Board of Human Investigation and Ethics Committee of Chang Gung Medical Foundation ruled that approval was not required for this study. PATIENT: Woman aged 46 years. INTERVENTIONS, MEASUREMENTS, AND MAIN RESULTS: In MIS the myoma has to be divided into small fragments for piecemeal retrieval through a small incision [1] with a widely used technique called morcellation (confined or unconfined) [2]. DPL is a rare sequellae after laparoscopic morcellation. Because this entity is rarely reported, this video demonstrates laparoscopic technique for safe removal of DPL post laparoscopic myomectomy and morcellation. A 46-year-old woman with a past history of laparoscopic myomectomy with specimen retrieval by a power morcellation 8 years ago presented with abdominal discomfort. Computed tomography revealed multiple iso-dense lesions in the uterine corpus and pelvic cavity. Upon laparoscopy multiple nodules were identified at the previous myomectomy scar, pelvic peritoneum, ovarian surface, and over the small bowel. A total laparoscopic hysterectomy with bilateral salpingo-oophorectomy along with excision of all visible lesions was performed. CONCLUSIONS: In this video we demonstrate a safe retroperitoneal approach for complete excision of DPL. Laparoscopic hysterectomy or myomectomy with unconfined morcellation appears to be associated with the risk of DPL [3]. Complete tissue fragment retrieval will minimize the sequelae of morcellation. Hence, myoma remnants should be carefully extracted and confined morcellation should be considered. Because DPL causes significant distortion of pelvic anatomy, thorough knowledge of pelvic surgical anatomy and retroperitoneal approach for complete excision of all lesions is recommended. PMID- 29032254 TI - A Rare Case Report: Isolated Mediastinal Lymph Node Recurrence in High-Risk Endometrial Cancer at 5 Years after Primary Laparoscopic Surgery. AB - Endometrial cancer is the most common malignancy in some developed countries, with an estimated 102 423 new cases reported in 2015. Isolated mediastinal lymph node recurrence has not been reported previously in this setting. We report a 78 year-old woman with an isolated lymph node recurrence in the mediastinal aortic region detected 5 years after her initial surgical treatment and postoperative adjuvant chemotherapy. Following curative radiotherapy with volumetric-modulated arc therapy at 60 Gy, the recurrence disappeared. To our knowledge, this is the first reported case of recurrent endometrial cancer with isolated mediastinal recurrence. PMID- 29032255 TI - Single-Incision Laparoscopic Surgery for Ovarian Tissue Cryopreservation. AB - STUDY OBJECTIVE: To present single-incision laparoscopic surgery (SILS) as an alternative to standard multiport laparoscopic surgery (MPLS) for ovarian tissue cryopreservation. DESIGN: Retrospective cohort study (Canadian Task Force classification II-2). SETTING: Tertiary medical center. PATIENTS: Two hundred thirty-one patients referred for oncologic fertility preservation. INTERVENTION: Non-inferiority comparison of SILS with MPLS for ovarian cryopreservation for future transplantation. MEASUREMENTS AND MAIN RESULTS: We compared duration of the procedure, intra- and postoperative complications, hospital stay, and time (days) from surgery to chemotherapy. We additionally compared number of ampules (each ampule contains 10 slivers of ovarian cortex tissue) preserved and number of oocytes retrieved during the preparation process. Adjustments for age, previous chemotherapy, and partial versus complete oophorectomy ratio were performed. MPLS was performed in 163 patients (71.2%) and SILS in 66 patients (28.8%). Ten patients (15.2%) in the SILS group and 32 (19.8%) in the MPLS group were prepubertal. Malignant conditions distribution was similar. Procedure duration and overall complication rates were similar. Number of ampules extracted from the preserved tissue was somewhat higher in the SILS group as compared with the MPLS group (14.7 vs 10.6, respectively; p < .01). CONCLUSION: Our findings suggest that SILS is an interesting alternative to MPLS. Future prospective trials may prove some benefit in ovarian tissue volume or time until chemotherapy initiation. PMID- 29032256 TI - Real-Time Fluorescent Sentinel Lymph Node Mapping with Indocyanine Green in Women with Previous Conization Undergoing Laparoscopic Surgery for Early Invasive Cervical Cancer: Comparison with Radiotracer +/- Blue Dye. AB - STUDY OBJECTIVE: To evaluate the added value of the fluorescence dye indocyanine green (ICG) for sentinel lymph node (SLN) mapping in women with cervical cancer who had undergone previous conization (stage 1A-1B1) by comparing ICG versus Tc99m radiotracer + blue dye (BD). DESIGN: Retrospective study (Canadian Task Force classification II-2). SETTING: Two European academic medical centers, San Gerardo Hospital, Italy and University of Berne, Switzerland. PATIENTS: Sixty five women with early stage (IA-IB1) cervical cancer who had undergone previous conization and who underwent SLN mapping with Tc99m +/- BD (n = 23) or ICG (n = 42) followed by pelvic lymphadenectomy and fertility-sparing surgery or hysterectomy were included in this analysis. INTERVENTION: Overall detection rate and bilateral SLN mapping rates of ICG were compared with those obtained using the standard Tc99m radiocolloid and BD. MEASUREMENT AND MAIN RESULTS: Overall, 220 SLNs were detected. The median number of SLNs per patient in the Tc99m +/- BD group was 2 (range, 1-5) and in the ICG group, 3 (range, 2-15). The detection rate of SLNs was 95.7% in Tc99m +/- BD group and 100% in the ICG group (p = .354). The women injected with ICG had a higher rate of bilateral mapping of the SLNs as compared with the Tc99m +/- BD group (95.2% vs 69.6%, p = .016%). Only 12% of the patients (8/65) presented metastatic nodes, 2 in the Tc99m +/- BD group and 6 in the ICG group. CONCLUSION: In early-stage cervical cancer patients conization had no significant impact on the SLN detection rate using both techniques (ICG and radiotracer +/- BD). In this scenario a higher bilateral mapping rate was confirmed using the fluorescent dye ICG rather than the standard techniques. PMID- 29032257 TI - Hetero-catalytic hydrothermal oxidation of simulated pulping effluent: Effect of operating parameters and catalyst stability. AB - In the present study, activated carbon (AC) supported bi-metallic catalyst (3.3Cu/2.2Ce/4.4AC) was subjected to catalytic wet oxidation (CWO) of simulated pulping effluent at moderate operating conditions (temperatures = 120-190 degrees C and oxygen partial pressures = 0.5-1.2 MPa). The oxidation reaction was performed in a high pressure reactor (capacity = 0.7 l) with catalyst concentration of 1-5 g/l for 3 h duration. During CWO at 190 degrees C temperature and 0.9 MPa oxygen pressure, the chemical oxygen demand (COD), total organic carbon (TOC), lignin and color removals from the wastewater were 79%, 77%, 88% and 89%, respectively, while the wastewater biodegradability was enhanced to 0.52 from an initial value of 0.16. TOC mass balance suggested that nearly 86-97% of the degraded TOC was mineralized whereas copper and cerium leaching from the catalyst were in the range of 1-15% and 0.7-1% with respect to their initial amounts. Metal leaching was reduced with increase in the reaction temperature. Global kinetic rate model was also developed using TOC degradation data and the activation energies of two step (rapid followed by slower TOC removal) CWO reaction were determined as 34.2 kJ/mol and 28.5 kJ/mol, respectively. PMID- 29032258 TI - Modelling approach to better control biofouling in fluidized bed membrane bioreactor for wastewater treatment. AB - A mathematical model has been developed to better understand fouling mitigation mechanisms in particle-sparged membrane bioreactor. The model developed herein assumes two fouling mechanisms, (i) the pore blocking leading to the decrease in membrane surface porosity and (ii) the progressive development of compressible cake layer on the membrane surface. The model has been validated by comparison with trans-membrane pressure data registered from the bioreactor filtering a synthetic solution consisting of bentonite, sodium alginate and bovin serum albumine (BSA). Two nonporous media have been tested, Polyethylene terephthalate (PET) beads and silica particles with different dosage (0, 10, 30, 50 and 70% (v/v)). Compared to the experimental data, the model shows satisfactory fitting with R2 >= 93%. For both media tested, an optimal dosage to minimize fouling rate was observed at 50% (v/v). Even if both fouling mechanisms have been mitigated by adding fluidized media, pore blocking was more pronounced than cake formation. Moreover, better pore blocking mitigation was observed with PET media (50% (v/v)) having bigger size and lower density than silica particles. PMID- 29032259 TI - Effect of evaporative weathering and oil-sediment interaction on the fate and behavior of diluted bitumen in marine environments. Part 2. The water accommodated and particle-laden hydrocarbon species and toxicity of the aqueous phase. AB - In this study, the water accommodated and particle-laden hydrocarbon species, and the toxicity of the aqueous phase after oil-sediment interactions by varying the weathering states of diluted bitumen (Cold Lake blend (CLB)), oil type from light to heavy, and sediment type. Compared to the original oils, the sediment-laden total petroleum hydrocarbons (TPH) contained fewer hydrocarbons in the carbon range C34 range. Sediment-laden oil amounts generally decreased with an increased viscosity and asphaltene content of the test oils, as well as with increased sediment particle size. The presence of sediments significantly decreased the oil accommodated in water due to the formation of oil particulate aggregates (OPA) after mixing and settling. Less water accommodated TPH and polycyclic aromatic hydrocarbons (PAHs) were observed for weathered CLB products. However, oil and sediment types did not clearly affect the water accommodated TPH and PAHs. Light molecular PAHs and their alkylated congeners accounted for most of the water accommodated PAH congeners. A microtoxicity test demonstrated that with or without sediment, and regardless of sediment type, the toxicity of the water phase did not change significantly. Light oil of Alberta sweet mixed blend (ASMB) had the highest toxicity, followed by fresh CLB, and then all other oils, suggesting that ASMB and fresh CLB had relatively higher levels of light toxic components dissolved in the water phase compared with the other tested oils. PMID- 29032260 TI - Photo-assisted degradation of 2, 4, 6-trichlorophenol by an advanced reduction process based on sulfite anion radical: Degradation, dechlorination and mineralization. AB - This research was aimed at evaluating the performance UV only and sulfite mediated photoreduction process (an advanced reduction process) in the degradation, dechlorination and mineralization of 2, 4, 6-trichlorophenol (TCP). Firstly efficiency of sulfite-mediated photoreduction (SMP) process in the degradation of TCP was investigated and obtained the complete degradation of TCP (250 mg L-1) under the selected conditions (pH, 7.0; [sulfite]/[TCP] = 3.13; UV irradiation, 87 MUW cm-2 and dissolved oxygen (DO), 2 mg L-1) at 80 min whereas degradation rate of TCP by UV only was 73% at similar time. Investigate of degradation mechanism revealed the higher ability of sulfite radicals (SO3-) than eaq- and H in the reduction of TCP by the SMP process. In the second stage, UV only and SMP process efficiencies were investigated in the dechlorination of TCP. The dechlorination percentage (cleavage of CCl bonds) of TCP (250 mg L-1) for UV only and SMP process was 36 and 98% respectively. The contrary of TCP degradation process, investigation of reaction mechanism for TCP dechlorination process elucidated eaq- along with SO3- have important role in the dechlorination of TCP (although, the SO3- role was significant than the eaq-). In the next stage, mineralization of TCP using SMP process was evaluated by chemical oxygen demand (COD) and related result was 30.2%. The aromatic intermediates such as 2-chloro-1 benzoquinone, 2-hydroxy benzoquinone, 2-chlorophenol, benzene, 1, 3 cyclohexadiene and cyclohexene are identified by using LC-ESI/MS analysis. PMID- 29032261 TI - Electrochemically enhanced microbial CO conversion to volatile fatty acids using neutral red as an electron mediator. AB - Conversion of C1 gas feedstock, including carbon monoxide (CO), into useful platform chemicals has attracted considerable interest in industrial biotechnology. Nevertheless, the low conversion yield and/or growth rate of CO utilizing microbes make it difficult to develop a C1 gas biorefinery process. The Wood-Ljungdahl pathway which utilize CO is a pathway suffered from insufficient electron supply, in which the conversion can be increased further when an additional electron source like carbohydrate or hydrogen is provided. In this study, electrode-based electron transference using a bioelectrochemical system (BES) was examined to compensate for the insufficient reducing equivalent and increase the production of volatile fatty acids. The BES including neutral red (BES-NR), which facilitated electron transfer between bacteria and electrode, was compared with BES without neutral red and open circuit control. The coulombic efficiency based on the current input to the system and the electrons recovered into VFAs, was significantly higher in BES-NR than the control. These results suggest that the carbon electrode provides a platform to regulate the redox balance for improving the bioconversion of CO, and amending the conventional C1 gas fermentation. PMID- 29032262 TI - Effect of cadmium accumulation on green algae Chlamydomonas reinhardtii and acid tolerant Chlamydomonas CPCC 121. AB - Cadmium is one of the most dangerous metals found in wastewater since exposure to low concentrations are highly toxic for cellular functions. In this study, the effect of cadmium accumulation on Chlamydomonas reinhardtii and acid-tolerant strain CPCC 121 was investigated during 48 h under 100-600 MUM of Cd and two pH conditions (4 and 7). The toxicity of accumulated Cd was determined by the change of cellular and photosynthetic parameters. Obtained results showed that the maximum capacity of Cd accumulation in algal biomass was reached for both strains at 24 h of exposure to 600 MUM of Cd. Under this condition, C. reinhardtii showed a higher uptake of Cd compared to the strain CPCC 121, inducing a stronger cellular toxic impact. Chlamydomonas CPCC 121 showed a tolerance for Cd due to the exclusion of Cd at the cell wall surface, which was higher at pH 4 than pH 7. TEM images and EDX spectrum of Cd distribution within the cell confirmed the role of the cell wall as a barrier for Cd uptake. Although Cd2+ concentration was the highest in the medium, CPCC 121 was the most tolerant at pH 4, but was not enough efficient to be considered for the phycoremediation of Cd. At neutral pH, the efficiency of C. reinhardtii for the removal of Cd was limited by its toxicity, which was dependent to the concentration of Cd in the medium and the time of exposure. PMID- 29032263 TI - Comparison of DGT with traditional extraction methods for assessing arsenic bioavailability to Brassica chinensis in different soils. AB - Several predictive models and methods have been used for heavy metals bioavailability, but there is no universally accepted approach in evaluating the bioavailability of arsenic (As) in soil. The technique of diffusive gradients in thin-films (DGT) is a promising tool, but there is a considerable debate with respect to its suitability. The DGT method was compared with other traditional chemical extractions techniques (soil solution, NaHCO3, NH4Cl, HCl, and total As method) for estimating As bioavailability in soil based on a greenhouse experiment using Brassica chinensis grown in various soils from 15 provinces in China. In addition, we assessed whether these methods are independent of soil properties. The correlations between plant and soil As concentration measured with traditional extraction techniques were pH and iron oxide (Feox) dependent, indicating that these methods are influenced by soil properties. In contrast, DGT measurements were independent of soil properties and also showed a better correlation coefficient than other traditional techniques. Thus, DGT technique is superior to traditional techniques and should be preferable for evaluating As bioavailability in different type of soils. PMID- 29032264 TI - Building a Safer and Faster CAR: Seatbelts, Airbags, and CRISPR. AB - Therapeutic T cell engineering has recently garnered widespread interest because of the success of CD19 chimeric antigen receptor (CAR) therapy. CARs are synthetic receptors for antigen that redirect the specificity and reprogram the function of the T cells in which they are genetically introduced. CARs targeting CD19, a cell surface molecule found in most leukemias and lymphomas, have yielded high remission rates in patients with chemorefractory, relapsed disease, including acute lymphoblastic leukemia, chronic lymphocytic leukemia, and non Hodgkin lymphoma. The toxicities of this treatment include B cell aplasia, cytokine release syndrome (CRS), and neurotoxicity. Although reversible in most instances, these toxicities may require specific medical interventions, including transfer to intensive care to treat severe CRS. Guidelines for managing these toxicities are emerging. The recent report of a nonhuman primate model for CRS is poised to help advance the management of this syndrome. Finally, new engineering modalities, based on the use of targeted nucleases like CRISPR, may further enhance the efficacy and safety of CAR T cells. PMID- 29032265 TI - Effect of Antithymocyte Globulin Source on Outcomes of HLA-Matched Sibling Allogeneic Hematopoietic Stem Cell Transplantation for Patients with Severe Aplastic Anemia. AB - We wanted to evaluate efficacy of porcine antithymocyte globulin (ATG) in HLA matched sibling donor allogeneic hematopoietic stem cell transplantation (MSD HSCT) for patients with severe aplastic anemia (SAA). The clinical data of 113 SAA patients who received MSD-HSCT from January 2005 to November 2016 were analyzed retrospectively. Of these, 58 patients received rabbit ATG as a part of conditioning regimen (R-ATG group), whereas the other 55 patients received porcine ATG (P-ATG group). Patient baseline characteristics and donor conditions of the 2 groups were similar, except patients were older and more received peripheral blood stem cell transplantation in the P-ATG group. All patients engrafted in 2 groups. There were significant differences in the incidence of acute (20.7% +/- 5.3% versus 43.4% +/- 7.0%, P = .015) and chronic graft-versus- host disease (GVHD; 20.1% +/- 5.8% versus 46.0% +/- 7.9%, P = .003) between the R ATG and P-ATG groups. However, there were no significant differences in terms of 3-year overall survival (93.1% +/- 3.3% versus 84.4% +/- 5.7%, P = .235), grades III to IV acute GVHD (3.4% +/- 2.4% versus 12.3% +/- 4.7%, P = .098), moderate to severe chronic GVHD (12.6% +/- 4.9% versus 11.5% +/- 4.9%, P = .905), or graft rejection (7.4% +/- 3.6% versus 5.5% +/- 3.1%, P = .852). There was also no significant difference with regard to the incidence of severe bacterial infection (P = .075), invasive fungal disease (P = .701), or cytomeglovirus viremia (P = .770). P-ATG showed satisfactory efficacy and safety compared with R-ATG in the setting of MSD-HSCT for SAA patients. P-ATG could be a potential alternative preparation for R-ATG, further offering the advantage of lower costs. PMID- 29032266 TI - Hypoalbuminemia at Day +90 Is Associated with Inferior Nonrelapse Mortality and Overall Survival in Allogeneic Hematopoietic Cell Transplantation Recipients: A Confirmatory Study. AB - Prognostic biomarkers in allogeneic hematopoietic cell transplantation (allo-HCT) are needed to improve risk assessment and help guide therapeutic and surveillance strategies to mitigate the risk of death from the procedure. We previously identified hypoalbuminemia at day +90 post-transplantation as an independent predictor of increased nonrelapse mortality (NRM) and inferior overall survival (OS) in patients with acute myelogenous leukemia and myelodysplastic syndrome who were treated with an allo-HCT. Here, we aim to confirm the prognostic significance of day +90 hypoalbuminemia in 783 patients, median age 52 years (range, 18 to 76), who received an allo-HCT for various hematologic malignancies and bone marrow failure syndromes. Multivariate analysis for NRM demonstrated a negative effect of low serum albumin levels (<3.0 versus 3.0 to 3.5 versus >3.5 g/dL) at day +90 post-transplantation (hazard ratios, 8.03 [95% CI, 3.59 to 17.97] versus 2.84 [95% CI, 1.59 to 5.08] versus reference; P < .0001). This was also the case for OS (hazard ratios, 6.86 [95% CI, 4.24 to 11.10] versus 1.52 [95% CI, 1.05 to 2.20] versus reference; P < .0001). Patients with hypoalbuminemia at day +90 post-transplantation are more likely to die from causes other than relapse, particularly infections. This large study confirms the ability of day +90 serum hypoalbuminemia to predict worse NRM and inferior OS. Presence of hypoalbuminemia at day +90 should drive a more rigorous real-time surveillance strategy considering the anticipated high-risk of NRM and poor survival in these patients. Future studies should consider incorporating day +90 serum albumin levels in prognostic models of NRM and OS. PMID- 29032267 TI - Long-Term Follow-Up of a Donor versus No-Donor Comparison in Patients with Multiple Myeloma in First Relapse after Failing Autologous Transplantation. AB - We report the long-term clinical outcomes of a retrospective multicenter study that enrolled 169 patients with multiple myeloma (MM) in first relapse after failing autologous stem cell transplantation (SCT). After HLA typing at relapse, 79 patients with a suitable donor, 72 (91%) of whom eventually underwent salvage allogeneic SCT (allo-SCT), were compared with 90 patients without a donor who were treated with multiple lines of salvage treatment with bortezomib and/or immunomodulatory agents. At a median follow-up of 30 months (range, 2-180 months) for all patients and 110 months (range, 38-180 months) for surviving patients, 7 year progression-free survival (PFS) was 18% in the donor group and 0% in the no donor group (hazard ratio [HR], 2.495; 95% confidence interval [CI], 1.770-3.517; P < .0001). Seven-year overall survival (OS) was 31% in the donor group and 9% in the no-donor group (HR, 1.835; 95% CI, 1.306-2.577; P < .0001). By multivariate analysis, chemosensitivity to salvage treatments and presence of a suitable donor were significantly associated with better PFS and OS. The long-term follow-up of this study confirms the significant PFS benefit and provides new evidence of an OS advantage for patients with MM who have a suitable donor and undergo allo-SCT. Allo-SCT should be considered as a treatment option in young relapsed patients with high-risk disease features after first-line treatment. PMID- 29032268 TI - Total Marrow Lymphoid Irradiation/Fludarabine/ Melphalan Conditioning for Allogeneic Hematopoietic Cell Transplantation. AB - Reduced-intensity conditioning (RIC) regimens for hematopoietic stem cell transplantation (HCT) can reduce morbidity and mortality, but patients with advanced disease may require alternative approaches. In an initial report of RIC with fludarabine (FLU) and melphalan (MEL) with total marrow lymphoid irradiation (TMLI) in HCT for advanced hematologic malignancies in 33 patients, we found that the addition of TMLI to RIC was feasible and safe. Here we report long-term outcomes for these patients. This prospective study included 61 patients treated with TMLI to a dose of 12 Gy (1.5 Gy twice daily for 4 days), FLU (25 mg/m2/day for 5 days), and MEL (140 mg/m2/day for 1 day). Overall survival (OS), event-free survival (EFS), cumulative incidence of relapse (CIR), and nonrelapse mortality (NRM) were measured from the date of HCT. Survival outcomes were analyzed using Kaplan-Meier analysis. Patients were categorized as low/intermediate or high/very high risk using the Disease Risk Index. The median follow-up was 7.4 years. The majority of patients had acute leukemia (72%); 49% had high/very high-risk disease. The median patient age was 55 years (range, 9-70 years). Two-year OS, EFS, CIR, and NRM were 54% (95% confidence interval [CI], 41%-66%), 49% (95% CI, 36%-61%), 21% (95% CI, 13%-35%), and 30% (95% CI, 20%-43%), respectively. Five year OS, EFS, CIR, and NRM were 42% (95% CI, 30%-54%), 41% (95% CI, 28%-53%), 26 (95% CI, 17%-40%), and 33% (95% CI, 23%-47%, respectively). Acute (any grade) and chronic (limited or extensive) graft-versus-host disease occurred in 69% and 74% of patients, respectively. The most common toxicity was mucositis. The addition of TMLI to FLU/MEL conditioning was well tolerated, with favorable outcomes. Dosage escalation of TMLI or other modifications may be needed to improve disease control. PMID- 29032269 TI - Second Hematopoietic Stem Cell Transplant for Thalassemia Major: Improved Clinical Outcomes with a Treosulfan-Based Conditioning Regimen. AB - Graft rejection (GR) after allogeneic stem cell transplantation (allo-SCT) occurs in 10% to 20% of patients with beta-thalassemia major (TM). There are limited data on the clinical profile and long-term outcome of patients who have had a GR. We undertook a retrospective analysis of patients who had a graft failure after allo-SCT for TM at our center. From October 1991 to June 2016, 55 of 506 patients (11%) transplanted for TM had a graft failure. An additional 7 patients with graft failure after allo-SCT done at other centers were referred to us for a second transplant. The median age was 8 years (range, 1 to 19), and there were 38 males (61.2%). Thirty-two patients (52.4%) were primary graft failures (15 with aplasia and 17 with autologous recovery) and 30 (47.6%) were secondary graft failures (5 with aplasia and 25 with autologous recovery). On conventional risk stratification 40 patients (64.5%) were class III. Seventeen patients (53.12%) with primary graft failure and 16 (53.3%) with secondary graft failure did not receive a second transplant. Twenty-nine patients (46%) with GR underwent a second allo-SCT. With the exception of 1 patient (first allo-SCT with an unrelated cord blood product), the donor for the second transplant was the same as the first transplant. Conditioning regimen for the second SCT was busulfan based myeloablative (MAC) in 7 patients (24%), treosulfan-based MAC in 12 patients (41.3%), and the remaining received non-MAC regimens in view of pancytopenia and perceived inability to tolerate MAC. None of the patients conditioned with a treosulfan-based regimen had a GR, although 1 patient died with complications secondary to chronic graft-versus-host disease. Of the remaining 17 patients, 10 died after the second GR and 3 of regimen-related toxicity. Four are alive, of which 1 has recurrent TM and the rest are well and transfusion independent at 55, 80, and 204 months, respectively, from second transplant (all busulfan-based MAC). On a univariate analysis a nontreosulfan based conditioning regimen and time from GR to second transplant of <1 year was significantly associated with an adverse impact. However, on a multivariate analysis only a nontreosulfan-based regimen was associated with a significant adverse impact on event-free survival (HR, 11.5; 95% CI, 1.13 to 116.4; P = .039). In conclusion, there has been a significant improvement in clinical outcomes in our experience with the use of a treosulfan-based reduced-toxicity MAC regimen for second allo-SCT for TM. It would be reasonable, where feasible, to defer the second transplant by a year after the first GR. PMID- 29032270 TI - A European HLA Isolate and Its Implications for Hematopoietic Stem Cell Transplant Donor Procurement. AB - Europeans have often been considered a homogenous group in registry donor match predictions, but it is now evident that HLA haplotype frequencies vary across the European continent. Earlier studies have indicated that Finns in northeastern Europe have unique HLA characteristics, and the increasing availability of high resolution registry donor data is now making more detailed comparisons possible. In the first phase of the present study, estimated HLA haplotype frequencies in stem cell donor registries of Finland and its neighbors Sweden and Russia were calculated using the algorithm of the German National Bone Marrow Donor Registry (ZKRD) and their frequencies were compared with one another and also with that of Germany. Virtual donor searches for 1492 high-resolution typed Finnish patients in the Finnish, Swedish and German registries were then performed, using individual match predictions for each registry. In the last phase, the impact of specifically Finnish-enriched HLA haplotypes on Finnish patients and the use of Finnish registry donors was assessed by analyzing 647 consecutive hematopoietic stem cell transplantation (HSCT) donor searches and 40 exported Finnish HSCTs. The Finnish HLA landscape was more homogenous than the 3 other studied populations, but also genetically distinct from them. The match predictions found a probable 10/10 match for 71%, 41%, and 31% of the Finnish patients in the German, Finnish, and Swedish registries, respectively. Thirty-four of Finland's 100 most frequent HLA haplotypes were represented with a frequency of <.0003 in Germany, and with an 8- to 3262-fold greater frequency in Finland than in Germany. Patients carrying these Finnish-enriched haplotypes were less likely to receive a matched HSCT but more likely to receive it from a domestic donor. Registry donors carrying them were more likely to donate stem cells, both nationally and internationally. The Finnish HLA isolate has a significant impact on both Finnish patients and registry donors, explaining the high use of national registry donors for Finnish patients. Haplotype frequency estimations are an important tool for small registries as well, to help optimize donor match predictions and the size of individual registries. PMID- 29032271 TI - A Comparative Assessment of Quality of Life in Patients with Multiple Myeloma Undergoing Autologous Stem Cell Transplantation Through an Outpatient and Inpatient Model. AB - Outpatient autologous stem cell transplantation (ASCT) has proven to be feasible in terms of physical morbidity and mortality outcomes, but little data exist on the impact of this procedure on quality of life (QoL). The purpose of this prospective, observational, longitudinal cohort study was to compare the effects of inpatient (n = 76) and outpatient (n = 64) modes of care on QoL in patients with multiple myeloma who underwent ASCT. Patients were treated according to their preference for the inpatient or outpatient model. QoL was assessed using the Functional Assessment of Cancer Therapy-Bone Marrow Transplantation (FACT BMT) at baseline (7 days before ASCT; T1) and at days +7 (T2) and +30 (T3) after ASCT. Overall, inpatients achieved higher mean values at each time point (86.05 +/- 15.54 at T1, 89.23 +/- 19.19 at T2, and 87.96 +/- 13.6 at T3) compared with outpatients (85.62 +/- 14.51 at T1, 87.42 +/- 23.41 at T2, and 83.98 +/- 20.2 at T3), although the differences did not reach statistical significance. Inpatients showed higher mean scores than outpatients in physical well-being (7.67 +/- 5.7, 15.44 +/- 6.34, and 12.96 +/- 6.03, respectively, versus 5.89 +/- 4.33, 13.92 +/- 7.05, and 8.84 +/- 6.33, respectively; P < .05). Mean scores on social/family well-being were significantly higher in the outpatient group compared with the inpatient group (22.93 +/- 13.29, 21.14 +/- 5.31, and 21.64 +/- 4.58, respectively, versus 20.59 +/- 3.79, 19.52 +/- 5.12, and 20.01 +/- 3.97, respectively; P = .003). There were no significant between-group differences with respect to functional well-being and emotional status. Among adults at a single institution undergoing ASCT for MM, the use of outpatient care compared with standard transplantation care did not result in improved QoL during transplantation. Further research is needed for replication and to assess longer term outcomes and implications. PMID- 29032273 TI - Torquetenovirus Dynamics and Immune Marker Properties in Patients Following Allogeneic Hematopoietic Stem Cell Transplantation: A Prospective Longitudinal Study. AB - Torquetenovirus (TTV) has been proposed as a marker of immune function in patients receiving immunosuppression after solid organ transplantation. This study aimed to define TTV plasma dynamics and investigate clinical associations in patients following allogeneic hematopoietic stem cell transplantation (HSCT). This was a single-center prospective longitudinal study involving 50 consecutive patients treated with HSCT between March 2015 and April 2016. TTV plasma DNA levels were measured with quantitative PCR at 12 consecutive time points during the first year after HSCT. Forty of the 50 patients (80%) had detectable TTV viremia before HSCT (median level, 5.37 log10 copies/mL; interquartile range [IQR], 3.51-6.44 log10 copies/mL). All patients subsequently developed TTV viremia during the follow-up period. Plasma viral loads evolved dynamically over time, with a peak of 8.32 log10 copies/mL (IQR, 7.33-9.35 log10 copies/mL) occurring at 79 days (IQR, 50-117 days) following HSCT and a stable plateau toward the end of the follow-up period. The type of malignancy, the use of antithymocyte globulin during conditioning, and the occurrence of acute graft versus-host disease requiring systemic therapy had temporary effects on TTV dynamics. TTV levels showed a significant correlation with absolute lymphocyte counts following engraftment (rs = -.27; P < .01) and with cytomegalovirus (CMV; rs=.39; P < .01) and Epstein-Barr virus (EBV; rs=.45; P = .02) viral loads during phases of viremia. Immune-related clinical events were not predicted by TTV levels. TTV viremia occurred universally and was sustained throughout the first year after HSCT. Several variables and events before and after HSCT were correlated with TTV levels and hint toward immune marker properties of TTV, but their complex interactions might perturb the capability of TTV to predict immune related complications in this population. PMID- 29032272 TI - Fludarabine and Busulfan versus Fludarabine, Cyclophosphamide, and Rituximab as Reduced-Intensity Conditioning for Allogeneic Transplantation in Follicular Lymphoma. AB - Large, multicenter studies comparing commonly used reduced-intensity conditioning (RIC) approaches in follicular lymphoma (FL) have not been performed. Using the Center for International Blood and Marrow Transplant Research database, we report the outcomes of the 2 most commonly used RIC approaches, fludarabine and busulfan (Flu/Bu) versus fludarabine, cyclophosphamide, and rituximab (FCR) in FL patients. We evaluated 200 FL patients undergoing allogeneic hematopoietic cell transplantation (allo-HCT) who received RIC with either Flu/Bu (n = 98) or FCR (n = 102) during 2008 to 2014. All patients received peripheral blood grafts, and graft-versus-host disease (GVHD) prophylaxis was limited to calcineurin inhibitor based approaches. Median follow-up of survivors in the Flu/Bu and FCR groups was 48 months and 46 months, respectively. On univariate analysis in the Flu/Bu and FCR groups, the 3-year rates of nonrelapse mortality (11% versus 11%, P = .94), relapse/progression (18% versus 15%, P = .54), progression-free survival (PFS) (71% versus 74%, P = .65), and overall survival (OS) (73% versus 81%, P = .18) were not significantly different. On multivariate analysis no difference was seen between the FCR and Flu/Bu cohorts in terms of grades II to IV (relative risk [RR], 1.06; 95% confidence interval [CI], .59 to 1.93; P = .84) or grades III to IV (RR, 1.18; 95% CI, .47 to 2.99; P = .72) acute GVHD, nonrelapse mortality (RR, .83; 95% CI, .38 to 1.82; P = .64), relapse/progression (RR, .99; 95% CI, .49 to 1.98; P = .97), PFS (RR, .92; 95% CI, .55 to 1.54; P = .76), or OS (RR, .70; 95% CI, .40 to 1.23; P = .21) risk. However, RIC with FCR was associated with a significantly reduced chronic GVHD risk (RR, .52; 95% CI, .36 to .77; P = .001). RIC with either Flu/Bu or FCR in patients with FL undergoing allo-HCT provides excellent 3-year OS, with acceptable rates of nonrelapse mortality. FCR-based conditioning was associated with a lower risk of chronic GVHD. PMID- 29032274 TI - Assessment of Impact of HLA Type on Outcomes of Allogeneic Hematopoietic Stem Cell Transplantation for Chronic Lymphocytic Leukemia. AB - Chronic lymphocytic leukemia (CLL) is a common hematologic malignancy with many highly effective therapies. Chemorefractory disease, often characterized by deletion of chromosome 17p, has historically been associated with very poor outcomes, leading to the application of allogeneic hematopoietic stem cell transplantation (allo-HCT) for medically fit patients. Although the use of allo HCT has declined since the introduction of novel targeted therapy for the treatment of CLL, there remains significant interest in understanding factors that may influence the efficacy of allo-HCT, the only known curative treatment for CLL. The potential benefit of transplantation is most likely due to the presence of alloreactive donor T cells that mediate the graft-versus-leukemia (GVL) effect. The recognition of potentially tumor-specific antigens in the context of class I and II major histocompatibility complex on malignant B lymphocytes by donor T cells may be influenced by subtle differences in the highly polymorphic HLA locus. Given previous reports of specific HLA alleles impacting the incidence of CLL and the clinical outcomes of allo-HCT for CLL, we sought to study the overall survival and progression-free survival of a large cohort of patients with CLL who underwent allo-HCT from fully HLA-matched related and unrelated donors at Center for International Blood and Marrow Transplant Research transplantation centers. We found no statistically significant association of allo-HCT outcomes in CLL based on previously reported HLA combinations. Additional study is needed to further define the immunologic features that portend a more favorable GVL effect after allo-HCT for CLL. PMID- 29032275 TI - Association of Socioeconomic Status with Chronic Graft-versus-Host Disease Outcomes. AB - Chronic graft-versus host disease (GVHD) is a chronic and disabling complication after hematopoietic cell transplantation (HCT). It is important to understand the association of socioeconomic status (SES) with health outcomes in patients with chronic GVHD because of the impaired physical health and dependence on intensive and prolonged health care utilization needs in these patients. We evaluated the association of SES with survival and quality of life (QOL) in a cohort of 421 patients with chronic GVHD enrolled on the Chronic GVHD Consortium Improving Outcomes Assessment study. Income, education, marital status, and work status were analyzed to determine the associations with patient-reported outcomes at the time of enrollment, nonrelapse mortality (NRM), and overall mortality. Higher income (P = .004), ability to work (P < .001), and having a partner (P = .021) were associated with better mean Lee chronic GVHD symptom scores. Higher income (P = .048), educational level (P = .044), and ability to work (P < .001) also were significantly associated with better QOL and improved activity. In multivariable models, higher income and ability to return to work were both significantly associated with better chronic GVHD Lee symptom scores, but income was not associated with activity level, QOL, or physical/mental functioning. The inability to return to work (hazard ratio, 1.82; P = .019) was associated with worse overall mortality, whereas none of the SES indicators were associated with NRM. Income, race, and education did not have statistically significant associations with survival. In summary, we did not observe an association between SES variables and survival or NRM in patients with chronic GVHD, although we found some association with patient-reported outcomes, such as symptom burden. Higher income status was associated with less severe chronic GVHD symptoms. More research is needed to understand the psychosocial, biological, and environmental factors that mediate this association of SES with major HCT outcomes. PMID- 29032276 TI - Reversal of Low Donor Chimerism after Hematopoietic Cell Transplantation Using Pentostatin and Donor Lymphocyte Infusion: A Prospective Phase II Multicenter Trial. AB - In a multicenter, prospective, phase II study we evaluated the safety and efficacy of pentostatin followed by donor lymphocyte infusion (DLI) in patients with low donor Tcell chimerism after allogeneic hematopoietic cell transplantation (HCT). Thirty-six patients with low donor blood CD3 chimerism were enrolled in this study. Thirty-five patients received a total of 41 DLIs after a dose of pentostatin, and 1 patient received pentostatin only. Median donor CD3 chimerism prompting the initiation of pentostatin and DLI was 28% (range, 5% to 47%). Responses (defined by increases in donor CD3 chimerism >=10% maintained to day 56 post-DLI) were seen in 16 patients (44.4%) with a median rise in CD3 donor chimerism to 64% (range, 48% to 100%). There was a trend for better responses among 21 patients who received first treatment within 100 days after transplant (57% response rate) compared with15 patients who received first treatment more than 100 days after HCT (27% response rate, P = .07). Fourteen patients (39%) developed grades II to IV acute graft-versus-host disease (GVHD) at a median of 10 days (range, 0 to 83) after DLI. Ten patients (28%) developed extensive chronic GVHD. Seventeen patients (47%) developed new grade 4 cytopenias after DLI. There was no difference in relapse between nonresponders and responders. Twenty-eight patients (78%) died, most (n = 21) because of relapse. Five of 16 responders (31%) are alive, all disease-free, at a median of 60 months (range, 21 to 132) after DLI. Six of 20 nonresponders (30%) are alive at a median of 47 months (range, 16 to 100) after DLI, 3 in complete remission. Pentostatin and DLI had acceptable toxicity and appeared to increase low donor CD3 chimerism after HCT but had no impact on mortality. PMID- 29032277 TI - Marine ecological risk assessment methods for radiation accidents. AB - Ecological risk assessment (ERA) is a powerful technical tool that can be used to analyze potential and extreme adverse environmental impacts. With the rapid development of nuclear power plants in coastal areas around the world, the establishment of approaches and methodologies for marine ERA with a focus on radiation accidents is an urgent requirement for marine environmental management. In this study, the approaches and methodologies for ERA pertaining to marine radiation accidents (MRA) are discussed and summarized with applications in case studies, such as the nuclear accident in Fukushima, Japan, and a hypothetical accident in Daya Bay, China. The concepts of ERA and Risk Degree of ERA on MRA are defined for the first time to optimize the ERA system. The results of case studies show that the ERA approach and methodology for MRA are scientifically sound and effective in both the early and late stage of MRAs along with classic ERA Approach and the ERICA Integrated Approach. The results can be useful in the decision-making processes and the risk management at the beginning of accident as well as the ecological restoration after the accident. PMID- 29032278 TI - Rapid detection of frozen-then-thawed minced beef using multispectral imaging and Fourier transform infrared spectroscopy. AB - In recent years, fraud detection has become a major priority for food authorities, as fraudulent practices can have various economic and safety consequences. This work explores ways of identifying frozen-then-thawed minced beef labeled as fresh in a rapid, large-scale and cost-effective way. For this reason, freshly-ground beef was purchased from seven separate shops at different times, divided in fifteen portions and placed in Petri dishes. Multi-spectral images and FTIR spectra of the first five were immediately acquired while the remaining were frozen (-20 degrees C) and stored for 7 and 32days (5 samples for each time interval). Samples were thawed and subsequently subjected to similar data acquisition. In total, 105 multispectral images and FTIR spectra were collected which were further analyzed using partial least-squares discriminant analysis and support vector machines. Two meat batches (30 samples) were reserved for independent validation and the remaining five batches were divided in training and test set (75 samples). Results showed 100% overall correct classification for test and external validation MSI data, while FTIR data yielded 93.3 and 96.7% overall correct classification for FTIR test set and external validation set respectively. PMID- 29032279 TI - Colonoscopy-induced right superior rectal artery tear: A case report. AB - INTRODUCTION: Colonoscopy is a well-accepted procedure applied worldwide in diagnosis and management of colon lesions. The incidence of reported complications is not rare. PRESENTATION: A 79-year-old man with postcolonoscopy intraperitoneal bleeding secondary to superior rectal artery injury. He received computer tomogram and angiogram study to confirmed bleeder from right superior rectal artery and subsequently managed with embolization and operation. DISCUSSION: This is the second case report in the literatures of mesentery tear and the first case with massive hemoperitoneum. CONCLUSION: Identification and careful evaluation are crucial for successful diagnosis and treatment in cases such as this after colonoscopy. PMID- 29032280 TI - Carotid artery stenosis and PERI-operative stroke in cardiac surgery. A bridge between heart and brain. PMID- 29032281 TI - Differences in mother-to-infant bonding according to type of C-section: Elective versus unplanned. AB - : Aim To compare the mother-to-infant bond of mothers who gave birth by elective C-section versus urgent C-section in the first 48-72h of life and 10-12weeks after delivery. METHODS: This is a cohort prospective study of women giving birth by C-section. 48-72h after delivery, sociodemographic variables were collected, Mother-to-Infant Bonding Scale and newborn's response to separation test were performed. 10-12weeks after delivery Mother-to-Infant Bonding Scale and questions about baby's feeding were completed. RESULTS: A total of 116 dyads were recruited, 58 in each group. No significant differences between the two C sections in bonding, newborn response to separation or type of feeding were observed at any time points. However, those dyads presenting with an abnormal bond at time 1 had more frequently an abnormal bond at time 2 (50% versus 8.1%, p=0.000). CONCLUSIONS: No differences in mother-to-infant bond were found according to type of C-section. PMID- 29032283 TI - Extraskeletal Osteosarcoma of the Hand. AB - Extraskeletal osteosarcoma is a rare disease that uncommonly affects the upper extremity. A 46-year-old African American man presented for evaluation of a right middle finger mass. Excisional biopsy demonstrated extraskeletal osteosarcoma of the soft tissues. We performed a transmetacarpal ray resection. PMID- 29032284 TI - Mycobacterium longobardum Infection in the Hand. AB - Mycobacterium longobardum is a slow-growing, nontuberculous mycobacterium that was first characterized in 2012. We report a case of M. longobardum infection in the right middle finger of a diabetic man. He underwent surgery for a presumed diagnosis of an epidermal inclusion cyst. Molecular diagnosis of the surgical specimens demonstrated M. longobardum through RNA polymerase beta-subunit encoding gene sequencing. After surgery, the patient was treated with antibiotics and eventually cured of the infection. To the best of our knowledge, this is only the second reported case of a pathogenic M. longobardum infection worldwide and the first such case in the hand. The purposes of this case study are to alert treating providers to consider nontuberculous mycobacterium infection when an inflammatory process persists, discuss signs and symptoms of the disease, and provide general treatment guidelines. PMID- 29032282 TI - Atypical ductal hyperplasia: Our experience in the management and long term clinical follow-up in 71 patients. AB - INTRODUCTION: Atypical ductal hyperplasia (ADH) is a high-risk benign lesion found in approximately 1-10% of breast biopsies and associated with a variable incidence of carcinoma after surgical excision. The main goal of our study is to present our experience in the management and long-term follow-up of 71 patients with ADH diagnosed on breast biopsy. MATERIALS AND METHODS: Results of 3808 breast biopsy specimens from 1 January 2000 to 31 December 2005 were analyzed to identify all biopsies which resulted in a diagnosis of ADH. The histopathological results of the 45 patients who underwent surgery were analyzed. Long-term follow up for the remaining patients was carried out. RESULTS: 45 of 71 (63.4%) patients with histological diagnosis of ADH on breast biopsy underwent surgery. Definitive histological results revealed invasive carcinoma in 7 cases (15.6%), high grade Ductal Carcinoma in situ (DCIS) in 10 (22.2%) patients, Lobular Carcinoma in situ (LCIS) in 4 cases (8.9%) and benign findings in 24 cases (53.3%). 12 of 71 (16.9%) patients underwent only long term follow-up; one (8,3%) of these developed invasive breast carcinoma after 6 years. CONCLUSION: Atypical ductal hyperplasia diagnosed on breast biopsy is associated with a relatively high incidence of invasive carcinoma and high grade ductal carcinoma in situ at the time of surgical excision. Certain radiological and cytological criteria can be used to help determine which patients should forgo surgery and be followed up with good results. Long term follow-up is always crucial for patients who have not undergone surgery. PMID- 29032285 TI - Blue light emitting diodes (LEDs) as an energy source in Chlorella fusca and Synechococcus nidulans cultures. AB - LEDs have narrow wavelength bands, which can influence microalgae biomass. This study pioneers the evaluation of blue LEDs as an energy source in Chlorella fusca and Synechococcus nidulans cultures. Blue LEDs increased the specific growth rate in Synechococcus nidulans LEB 115 cultures by 80% compared to the standard light used in indoor cultivations. Moreover, blue LEDs also induced lipid accumulation in Chlorella fusca LEB 111 cells, yielding concentrations of this bioproduct of up to 23% (ww-1). The chlorophylls and carotenoids were photostimulated proportionally to the LED light intensity. When the intensity of the blue LEDs was increased from 50 to 150MUmolm-2s-1, the biomass accumulated up to 4.5 and 2.4 times more chlorophylls and carotenoids, respectively. The potential of blue LEDs as an alternative environmentally friendly light source to stimulate biomass and metabolite production for different purposes was demonstrated. PMID- 29032286 TI - Difference or delay? A comparison of Bayley-III Cognition item scores of young children with and without developmental disabilities. AB - The "difference or delay paradigm" focuses on the question of whether children with developmental disabilities (DD) develop in a way that is only delayed, compared to typically developing children, or also qualitatively different. The current study aimed to examine whether qualitative differences exist in cognitive development of young children with and without DD on the basis of item scores on the Dutch Bayley-III Cognition scale. Differential item functioning was identified for 15 of the 91 items. The presence of DD was related to a higher number of Guttman errors, hinting at more deviation in the order of skill development. An interaction between group (i.e., with or without DD) and developmental quotient appeared to predict the number of Guttman errors. DD was related to a higher number of Guttman errors for the whole range of developmental quotients; children with DD with a small developmental quotient had the highest number. Combined, the results mean that qualitative differences in development are not to be excluded, especially in cases of severe developmental disabilities. When using the Bayley-III in daily practice, the possibility needs to be taken into account that the instruments' assumption of a fixed order in skill development does not hold. PMID- 29032287 TI - Adaptation of the MABC-2 Test (Age Band 2) for children with low vision. AB - BACKGROUND: The tools used to assess motor performance in children with low vision often have no validity and reliability data concerning this population and use non-standardized modifications. Adaptations of these tools could help to identify motor problems and mitigate their effects. AIM: To assess aspects of validity and reliability in an adaptation of the Movement ABC-2 Test (MABC-2) for children with low vision. METHODS AND PROCEDURES: The research was undertaken in two stages: 1) application of the original MABC-2 to 10 children with low vision, adaptation and pilot test; 2) administration and re-administration of the adapted MABC-2 in 30 children with low vision. Inter-rater reliability and test-retest reliability were assessed with an intraclass correlation coefficient and Kappa index; internal consistency was assessed with Cronbach's alpha. OUTCOMES AND RESULTS: Substantial to almost perfect inter-rater reliability was found between the component standard scores and a reasonable to excellent concordance rate in the classification of movement difficulty. The adapted tool has moderate internal consistency. CONCLUSIONS AND IMPLICATIONS: The adapted MABC-2 Test has improved the assessment of motor performance in children with low vision. PMID- 29032288 TI - Addressing social skills deficits in adults with Williams syndrome. AB - BACKGROUND: Individuals with Williams syndrome (WS) are hypersocial; yet, they experience social difficulties and trouble with relationships. This report summarizes findings from three studies examining the social functioning of adults with WS and the feasibility of a social skills training program for adults with WS (SSTP-WS) through the examination of performance on initial lesson plans. METHOD: Study 1: 114 parents of adults with WS completed the Social Responsiveness Scale-2. Study 2: 10 adults with WS and 12 of their parents participated in focus groups to further describe the deficits identified in Study 1 and to discuss a SSTP-WS. Study 3: 30 adults with WS were randomly assigned to 2 lessons on either conversations or relationships and pre-post change in social skills knowledge was assessed. RESULTS: Study 1 indicates adults with WS experience severe social impairments in social cognition, and mild-moderate impairments in social awareness and social communication. Qualitative results in Study 2 indicate a SSTP-WS should address conversation skills and relationships. In Study 3, participants showed gains in social skills knowledge following completion of lessons. IMPLICATIONS: A SSTP-WS may be beneficial for adults with WS. Future research should describe the social needs of individuals with WS at different ages and should further develop a SSTP-WS. PMID- 29032289 TI - Exploration of body perception and body dissatisfaction in young adults with intellectual disability. AB - BACKGROUND: People with intellectual disability (ID) are more likely to be overweight or obese. Research has shown that body dissatisfaction is a key factor in influencing unhealthy eating behaviour. More evidence is needed relating to how people with ID perceive their bodies in order to provide effectively targeted weight management programmes. AIMS: This study aimed to investigate whether people with ID have concepts for underweight, overweight and healthyweight, and whether they can apply these concepts to themselves. It also aimed to explore body perception bias through comparison of perceived self to independent figure ratings, and body dissatisfaction through perceived-ideal body discrepancy measurement and a series of open-ended questions. METHOD: Mixed methodology was used to explore body perception and body dissatisfaction in 40 young adults with ID compared to 48 individuals without ID. The Stunkard Figure Rating Scale assessed how participants would like to look, and their concepts of weight categories. RESULTS: Young adults with ID tend to hold positive beliefs about their bodies. Females with ID were likely to underestimate their body size. Individuals with ID understood what is meant by 'overweight', 'healthy-weight' and 'underweight' although these concepts were different to those without ID. Individuals with ID were unable to accurately apply these body size categories to themselves. CONCLUSION: These findings suggest that individuals with ID will first need support to understand how concepts of body size apply to themselves in order to facilitate weight management. PMID- 29032291 TI - Impact of an osteoporosis specialized unit on bone health in breast cancer survivals treated with aromatase inhibitors. AB - OBJECTIVE: Considering the increased fracture risk in early breast cancer patients treated with aromatase inhibitors (AI), we assessed the impact of a preventive intervention conducted by a specialized osteoporosis unit on bone health at AI treatment start. MATERIAL AND METHODS: Retrospective cohort of postmenopausal women who started treatment with AI after breast cancer surgical/chemotherapy treatment and were referred to the osteoporosis unit for a comprehensive assessment of bone health. Bone densitometry and fracture screening by plain X-ray were performed at the baseline visit and once a year for 5 years. RESULTS: The final record included 130 patients. At AI treatment start, 49% had at least one high-risk factor for fractures, 55% had osteopenia, and 39% osteoporosis. Based on the baseline assessment, 79% of patients initiated treatment with bisphosphonates, 88% with calcium, and 79% with vitamin D. After a median of 65 (50-77) months, 4% developed osteopenia or osteoporosis, and 14% improved their densitometric diagnosis. Fifteen fractures were recorded in 11 (8.5%) patients, all of them receiving preventive treatment (10 with bisphosphonates). During the follow-up period, patients with one or more high risk factors for fracture showed a greater frequency of fractures (15% vs. 3%) and experienced the first fracture earlier than those without high-risk factors (mean of 99 and 102 months, respectively; P=0.023). CONCLUSIONS: The preventive intervention of a specialized unit at the start of AI treatment in breast cancer survivors allows the identification of patients with high fracture risk and may contribute to preventing bone events in these patients. PMID- 29032290 TI - Inferential language use by youth with Down syndrome during narration. AB - We examined inferential language use by youth with Down syndrome (DS) in the context of narrative storytelling relative to younger typically developing (TD) children and same-aged peers with fragile X syndrome (FXS) matched on nonverbal cognitive ability level. Participants' narratives were coded for the use of different types of inferential language. Participants with DS used proportionately less inferential language overall relative to their counterparts with TD or FXS, although mean length of utterance accounted for group differences observed for the DS-TD group comparison only. Patterns of inferential language use varied across inferential subtypes and across participant groups, with mean length of utterance playing a significant role in group differences. These findings suggest potential syndrome specificity to the DS phenotype regarding impairments in inferential language use that can be partially explained by level of expressive syntactic ability and should be considered in future research. Clinical interventions within the DS population, therefore, should target to some extent the use of inferential language and complex sentence structure. PMID- 29032292 TI - Glimpses into the transition world: New graduate nurses' written reflections. AB - BACKGROUND: This study was born out of our reflections as educators responsible for helping new graduate nurses transition into their first year of professional practice through a formal education programme. Finding ourselves wondering about many of the questions the students raised with us, we set about looking more closely at what could be gleaned from the students' experience, captured in their written work over the course of a year. OBJECTIVES: To identify the challenges and learning experiences revealed in reflective assignments written by new graduate nurses undertaking a postgraduate course as part of their transition to registered nurse practice. STUDY DESIGN, SETTING AND PARTICIPANTS: Data consisted of the written work of two cohorts of students who had completed a postgraduate university course as part of their transition to new graduate practice in New Zealand. Fifty four reflective essays completed by twenty seven participating students were collected and their contents analysed thematically. RESULTS: Five key themes were identified. The students' reflections noted individual attributes - personal and professional strengths and weaknesses; professional behaviour - actions such as engaging help and support, advocating for patients' needs and safety and putting their own feelings aside; situational challenges such as communication difficulties, both systemic and interpersonal, and the pressure of competing demands. Students also identified rewards - results they experienced such as achieving the nursing outcomes they desired, and commented on reflection as a useful tool. CONCLUSIONS: The findings shed light on the experiences of new graduates, and how they fare through this critical phase of career development. Challenges relating to the emotional labour of nursing work are particularly evident. In addition the reflective essay is shown to be a powerful tool for assisting both new graduate nurses and their lecturers to reflect on the learning opportunities inherent in current clinical practice environments. PMID- 29032293 TI - Facilitating problem-based learning among undergraduate nursing students: A qualitative systematic review. AB - OBJECTIVES: The purpose of this study was to identify and synthesize the best available evidence on the perspective of undergraduate nursing students on facilitating elements that contribute to their success with PBL. DESIGN: a qualitative systematic review of the literature according to meta-aggregative methodology using the JBI SUMARI system was conducted. DATA SOURCES: Data was collected across CINAHL, Medline, Embase, Eric, Teacher Reference Center and reference lists. RESEARCH METHODS: Out of 378 articles, 101 were retrieved for examination and eight were retained after methodological analysis. RESULTS: 51 findings, matched with a verbatim, were extracted and aggregated in five categories: 1) in PBL, the nursing tutor models clinical reasoning and leadership skills; 2) the quality of group interactions is critical to the success of nursing students with PBL; 3) nursing students go through the process of learning with PBL; 4) through PBL, nursing students acquire skills that foster clinical reasoning; and 5) when the PBL method is used as intended, nursing students understand its purpose and process. These categories were aggregated in two syntheses worded as recommendation for practice. CONCLUSIONS: The synthesized recommendations are: 1) tutors should be trained to effectively guide the team work of undergraduate nursing students along the PBL process in order for them to achieve its goal; and 2) nursing students should be securely introduced to PBL and experience the development of their clinical reasoning through PBL. Future research should focus on the strategies undergraduate nursing students use to succeed with PBL and the effectiveness of PBL in enhancing critical thinking and collaboration skills. PMID- 29032294 TI - One year double blind study of high vs low frequency subcallosal cingulate stimulation for depression. AB - Subcallosal Brodmann's Area 25 (Cg25) Deep Brain Stimulation (DBS) is a new promising therapy for treatment resistant major depressive disorder (TR-MDD). While different DBS stimulating parameters may have an impact on the efficacy and safety of the therapy, there is no data to support a protocol for optimal stimulation parameters for depression. Here we present a prospective multi-center double-blind randomized crossed-over 13-month study that evaluated the effects of High (130 Hz) vs Low (20 Hz) frequency Cg25 stimulation for nine patients with TR MDD. Four out of nine patients achieved response criteria (>=40% reduction of symptom score) compared to mean baseline values at the end of the study. The mean percent change of MADRS score showed a similar improvement in the high and low frequency stimulation groups after 6 months of stimulation (-15.4 +/- 21.1 and 14.7 +/- 21.1 respectively). The mean effect at the end of the second period (6 months after cross-over) was higher than the first period (first 6 months of stimulation) in all patients (-23.4 +/- 19.9 (n = 6 periods) and -13.0 +/- 22 (n = 9 periods) respectively). At the end of the second period, the mean percent change of the MADRS scores improved more in the high than low frequency groups ( 31.3 +/- 19.3 (n = 4 patients) and -7.7 +/- 10.9 (n = 2 patients) respectively). Given the small numbers, detailed statistical analysis is challenging. Nonetheless the results of this study suggest that long term high frequency stimulation might confer the best results. Larger scale, randomized double blind trials are needed in order to evaluate the most effective stimulation parameters. PMID- 29032296 TI - Most Gleason 8 Biopsies are Downgraded at Prostatectomy-Does 4 + 4 = 7? AB - PURPOSE: Nonrepresentative biopsy sampling of prostate cancers with a biopsy Gleason score of 8 can adversely influence decisions regarding androgen deprivation in men receiving primary radiation therapy. The frequency of and factors associated with downgrading Gleason 8 biopsies at prostatectomy are not well known. MATERIALS AND METHODS: We used records from NCDB (National Cancer Database), a hospital based registry in the United States, of 72,556 men with prostate cancer diagnosed from 2010 to 2013, including 5,474 with Gleason 8 biopsies and no other high progression risk criteria according to NCCN (National Comprehensive Cancer Network(r)) Guidelines(r). The prevalence of Gleason 8 downgrading was calculated. Generalized estimating equation multivariable regression models were used to estimate the prevalence ratios and 95% CIs of downgrading by demographic and clinical factors, and evaluate the association of Gleason 8 downgrading with cT (clinical T) to pathological T category up staging. RESULTS: Of 5,474 Gleason 8 biopsies in men lacking other high progression risk criteria 3,263 (60%) were downgraded, changing the progression risk category from high to intermediate. A higher prevalence of Gleason 8 downgrading was significantly and independently associated with decreasing age, African American race, lower cT category, lower prostate specific antigen quartile and certain combinations of primary and secondary Gleason grades (3 + 5 greater than 4 + 4 greater than 5 + 3). Gleason 8 downgrading in cases of cT less than 3 was independently and significantly associated with a lower prevalence of up staging (prevalence ratio = 0.65, 95% CI 0.61-0.69). CONCLUSIONS: Downgrading Gleason 8 biopsies is common. Patient evaluation based on Gleason 8 biopsies often results in overestimating progression risk and disease extent, which may lead to overtreatment. PMID- 29032295 TI - Innate sensing of cancer's non-immunologic hallmarks. AB - A cancer mass consists of a complex composition of cancer cells, stromal cells, endothelial cells and also immune cells, which can represent more than half of the cellularity of a solid cancer. These immune cells become activated when they sense cancer antigens and stress ligands. Innate immune cells also detect various aspects of cellular stress that characterize a growing tumor mass. These key hallmarks of cellular stress are also detected by the cancer cell itself. In this review, we highlight studies that show that the cancer cell itself could be considered an 'innate cell' that senses and reacts to non-immunologic hallmarks of cancer, including displaced nucleic acids, proteotoxic stress, oxidative stress, and metabolic alterations. PMID- 29032297 TI - Postoperative Complications following Primary Penile Inversion Vaginoplasty among 330 Male-to-Female Transgender Patients. AB - PURPOSE: Studies of surgical complications of penile inversion vaginoplasty are limited due to small sample sizes. We describe postoperative complications after penile inversion vaginoplasty and evaluated age, body mass index and years on hormone replacement therapy as risk factors for complications. MATERIALS AND METHODS: We retrospectively reviewed the records of male-to-female patients who presented for primary penile inversion vaginoplasty to a high volume surgeon (MLB) from 2011 to 2015. Complications included granulation tissue, vaginal pain, wound separation, labial asymmetry, vaginal stenosis, fistula formation, urinary symptoms including spraying stream or dribbling, infection, vaginal fissure or vaginal bleeding. We classified complications by Clavien-Dindo grade. Multivariable logistic regression was performed to determine the independent effects of age, body mass index and hormone replacement therapy on postoperative surgical complications. RESULTS: A total of 330 patients presented for primary penile inversion vaginoplasty. Median age at surgery was 35 years (range 18 to 76). Median followup in all patients was 3 months (range 3 to 73). Of the patients 95 (28.7%) presented with a postoperative complication. Median time to a complication was 4.4 months (IQR 1-11.5). Rectoneovaginal fistulas developed in 3 patients (0.9%). A total of 30 patients (9.0%) required a second operation. There were no complications greater than Clavien-Dindo grade IIIB. Age, body mass index and hormone replacement therapy were not associated with complications. CONCLUSIONS: Penile inversion vaginoplasty is a relatively safe procedure. Most complications due to this surgery develop within the first 4 months postoperatively. Age, body mass index and hormone replacement therapy are not associated with complications and, thus, they should not dictate the timing of surgery. PMID- 29032298 TI - Factors and outcomes associated with inpatient cardiac arrest following emergent endotracheal intubation. AB - BACKGROUND: Inpatient peri-intubation cardiac arrest (PICA) following emergent endotracheal intubation (ETI) is an uncommon but potentially preventable type of cardiac arrest (CA). Limited published data exist describing factors associated with inpatient PICA and patient outcomes. This study identifies risk factors associated with PICA among hospitalized patients emergently intubated out of the operating room and compares PICA to other types of inpatient CA. METHODS: Retrospective case-control study of patients at our institution over a five-year period. Cases were defined as inpatients emergently intubated outside of the operating room that experienced cardiac arrest within 20min after ETI. The control group consisted of inpatients emergently intubated out of the operating room without CA. Predictors of PICA were identified through univariate and multivariate analysis. Clinical outcomes were compared between PICA and other inpatient CAs, identified through a prospectively enrolled CA registry at our institution. RESULTS: 29 episodes of PICA occurred over 5 years, accounting for 5% of all inpatient arrests. Shock index >=1.0, intubation within one hour of nursing shift change, and use of succinylcholine were independently associated with PICA. Sustained ROSC, survival to discharge, and neurocognitive outcome did not differ significantly between groups. CONCLUSION: Patients outcomes following PICA were comparable to other causes of inpatient CA. Potentially modifiable factors were associated with PICA. Hemodynamic resuscitation, optimized staffing strategies, and possible avoidance of succinylcholine were associated with decreased risk of PICA. Clinical trials testing targeted strategies to optimize peri-intubation care are needed to identify effective interventions to prevent this potentially avoidable type of CA. PMID- 29032299 TI - Association of antiplatelet therapy with patient outcomes after out-of-hospital cardiac arrest. AB - BACKGROUND: Cessation of blood flow during out-of-hospital cardiac arrest (OHCA) results in microvascular thrombosis, protracted hypoperfusion after return of spontaneous circulation and damage to vital organs. We tested the hypothesis that pre-arrest antiplatelet and anticoagulant medication use would be associated with less post-arrest organ dysfunction and better outcomes. METHODS: We included OHCA patients treated from January 2005 to October 2014 at a single academic medical center. We combined our prospective OHCA registry of clinical and demographic data with a structured chart review to abstract home antiplatelet and anticoagulant medications. We fit unadjusted and adjusted regression models to test the association of antiplatelet and anticoagulant medication use with early post-arrest illness severity, survival and functionally favorable recovery. RESULTS: Of 1054 subjects, 295 (28%) were prescribed an antiplatelet agent and 147 (14%) were prescribed an anticoagulant prior to arrest. In adjusted models, antiplatelet agents were associated with lower post-arrest illness severity (adjusted OR 0.50 95% CI 0.33-0.77), greater odds of survival to discharge (adjusted OR 1.74 95% CI 1.08-2.80) and greater odds favorable functional outcome (adjusted OR 2.11 95% CI 1.17-3.79). By contrast, anticoagulation via any agent was not associated with illness severity, survival to discharge or favorable outcome. CONCLUSION: Preventing intra-arrest and post-arrest microvascular thrombosis via antiplatelet agents could represent a novel therapeutic target to improve outcomes after OHCA. PMID- 29032300 TI - Is digestive cathepsin D the rule in decapod crustaceans? AB - Cathepsin D is an aspartic endopetidase with typical characteristics of lysosomal enzymes. Cathepsin D activity has been reported in the gastric fluid of clawed lobsters where it acts as an extracellular digestive enzyme. Here we investigate whether cathepsin D is unique in clawed lobsters or, instead, common in decapod crustaceans. Eleven species of decapods belonging to six infraorders were tested for cathepsin D activity in the midgut gland, the muscle tissue, the gills, and when technically possible, in the gastric fluid. Cathepsin D activity was present in the midgut gland of all 11 species and in the gastric fluid from the seven species from which samples could be taken. All sampled species showed higher activities in the midgut glands than in non-digestive organs and the activity was highest in the clawed lobster. Cathepsin D mRNA was obtained from tissue samples of midgut gland, muscle, and gills. Analyses of deduced amino acid sequence confirmed molecular features of lysosomal cathepsin D and revealed high similarity between the enzymes from Astacidea and Caridea on one side, and the enzymes from Penaeoidea, Anomura, and Brachyura on the other side. Our results support the presence of cathepsin D activity in the midgut glands and in the gastric fluids of several decapod species suggesting an extracellular function of this lysosomal enzyme. We discuss whether cathepsin D may derive from the lysosomal-like vacuoles of the midgut gland B-cells and is released into the gastric lumen upon secretion by these cells. PMID- 29032301 TI - Formation of asymmetric vesicles via phospholipase D-mediated transphosphatidylation. AB - Most biomembranes have an asymmetric structure with regard to phospholipid distribution between the inner and outer leaflets of the lipid bilayers. Control of the asymmetric distribution plays a pivotal role in several cellular functions such as intracellular membrane fusion and cell division. The mechanism by which membrane asymmetry and its alteration function in these transformation processes is not yet clear. To understand the significance of membrane asymmetry on trafficking and metabolism of intracellular vesicular components, a system that experimentally reproduces the asymmetric nature of biomembranes is essential. Here, we succeeded in obtaining asymmetric vesicles by means of transphosphatidylation reactions with phospholipase D (PLD), which acts exclusively on phosphatidylcholine (PC) present in the outer leaflet of vesicles. By treating PC vesicles with PLD in the presence of 1.7M serine and 0.3M ethanolamine, we obtained asymmetric vesicles that are topologically similar to intracellular vesicles containing phosphatidylserine and phosphatidylethanolamine in the cytosolic leaflet. PLD and other unwanted compounds could be removed by trypsin digestion followed by dialysis. Our established technique has a great advantage over conventional methods in that asymmetric vesicles can be provided at high yield and high efficiency, which is requisite for most physicochemical assays. PMID- 29032302 TI - Synthetic heparin and heparan sulfate: probes in defining biological functions. AB - Heparin and heparan sulfate are glycosaminoglycans that modulate numerous biological processes. The desire to capture the structural diversity responsible for their functions provides notable issues during synthesis, including site selective sulfonation, stereoselective glycosylation and the sheer number of probable targets at hand. With current advances in synthetic approaches, carbohydrate chemists generate these complex targets by chemical and enzymatic methods. Fondaparinux and a number of polysaccharides have been synthesized to probe anticoagulation and other biological functions. Moreover, a trove of structural information could be obtained by many analytical methods, which provide hints to the potential protein-binding sequences within the sugar chain. Further structure-activity relationship studies help unveil the secrets of the heparin/heparan sulfate code, providing potential candidates for drug development. PMID- 29032303 TI - Current strategies to streamline pharmacotherapy for older adults. AB - Although the term "personalized medicine" has been associated in many cases with pharmacogenomics, its definition embraces the use of specific biomarkers and covariates to help in the selection of medical treatments and procedures which are best for each patient. While several efforts have been performed for the tailored selection of therapies and dosing regimens in the general population, developing personalized medicine initiatives for elderly patients remains understudied. The personalized drug therapy for older patients requires the consideration of anatomical, physiological and functional alterations in a multimorbid setting requiring multiple medications. The present review focuses on currently employed qualitative and quantitative precision medicine approaches for elderly patients and discusses some of the associated challenges and limitations. Furthermore, the use of and confidence in physiologically-based approaches for optimal dose selection in this understudied yet clinically important patient population will be highlighted and discussed. PMID- 29032304 TI - Heterocyclic homoprostanoid derivative attenuates monoarthritis in rats: An in vitro and in vivo preclinical paradigm. AB - From our lab, among the nineteen heterocyclic homoprostanoids (HHPs), three derivatives (compounds 3, 3b and 3c) exerted antioxidant and anti-inflammatory activity. Present study is an extension of the earlier work, and, is designed to establish their therapeutic potential in monoarthritis in rats. In addition, their possible mechanism of action would be investigated. A battery of in vitro tests such as lipopolysaccharide (LPS)-induced nitrite (NO)/reactive oxygen species (ROS) and NO/interleukin (IL)-6 generation in murine macrophages and whole blood (WhB), respectively were conducted. Later, in vitro cyclooxygenase (COX) enzyme inhibitory activity was also evaluated. All the tested compounds showed comparable efficacy against ROS and NO in LPS-stimulated murine macrophages. However, compound 3 did not exert inhibitory effect on LPS-induced NO/IL-6 generation in WhB assay. Compounds (3b and 3c) inhibited the NO generation in LPS-stimulated WhB. However, only compound 3b reversed the raised IL-6 levels in this assay. None of the test compounds inhibited COX iso-enzymes in the in vitro assay. All three HHPs showed comparable efficacy against carrageenan-induced paw inflammation. However, none of them exhibited any dose dependent effect in this model. Based upon previous reports, compound 3c was explored against adjuvant-induced monoarthritis (AIA) in male Sprague-Dawley rats, where it exerted promising therapeutic effect. In addition to radiological and histological examinations of tibio-tarsal joint, various parameters such as chronic inflammation/pain, clinical score, interleukin (IL)-6 levels and complete blood cell profile were evaluated in AIA rats. Chronic treatment with 3c halted the disease progression in rats, improved the overall health of animals, as demonstrated by haematological, clinical scoring and joint examinations (radiological and histopathological). Inhibitory effect on elevated IL-6 in AIA rats suggested the possible mechanism of 3c on cytokine signalling. Overall, the study supports the anti-arthritic potential of compound 3c. PMID- 29032305 TI - Physicochemical pharmacokinetics as an optimization tool for generic development: A case study. AB - In spite of the fact that dissolution time profiles of 250mg ursodeoxycholic acid (UCDA) capsules developed by Sponsor and 250mg hard capsules produced by Ursofalk(r), Dr. Falk Pharma GmbH, indicated similarity (f2=60.6), a bioavailability study indicated unexpected differences in the formulations. To find an explanation of the in vivo performance of the compared formulations, the dissolution profiles were analyzed using a novel dissolution theory considering: The dissolution model was applied to the measured data using SADAPT. Despite Cmax and AUC values showing higher values after administration of the test product, a reduction of UDCA particle size for the test formulation was suggested for reformulation. The decision was based on the strongly pH-dependent UDCA solubility, formation of insoluble crystals at low pH condition and the known high pH fluctuations ranging from pH1 to 8 in empty stomach. The performed reformulation led to increased dissolution rate of the test product and to a positive bioequivalence study which compared the reformulated test generic formulation with two reference products purchased from two highly regulated markets. PMID- 29032306 TI - Implementing the additional strength biowaiver for generics: EMA recommended approaches and challenges for a US-FDA submission. AB - This review describes the EMA requirements on biowaivers for additional strengths of immediate release and modified release oral solid dosage forms focused on generic applications and highlights the challenges for a simultaneous EMA and FDA submission. Some specificities of the current EMA guidelines are compared with the current FDA Guidance for Industry, with a special focus on the strength to be investigated in vivo, formulation suitability for biowaiver, and optimizing dissolution studies for additional strength biowaivers. In Europe, the same principles applied for generics may be considered for deriving the biowaivers for innovator products. Several case studies are presented to illustrate the challenges of applying for additional strength biowaivers in EMA and FDA simultaneously. PMID- 29032307 TI - Biomechanical properties of different techniques used in vitro for suturing mid substance Achilles tendon ruptures. AB - BACKGROUND: The Dresden technique preserves the paratenon during Achilles tendon repair and may improve the plantarflexor mechanism when combined with mobilization during early rehabilitation. However, the surgical repair design for Achilles tendon ruptures can affect rates of re-rupture or lengthening. Therefore, the aim of this study was to determine the biomechanical properties of the Krackow, Double-Kessler, Double-Dresden, and Triple-Dresden techniques used for repairing mid-substance Achilles tendon ruptures during cyclical and maximum traction. METHODS: Sixty mid-substance bovine tendons repaired after transverse rupturing were divided randomly into four groups by repair technique: Krackow, Double-Kessler, Double-Dresden, and Triple-Dresden. Cyclical tractions of 4.7, 5.8, 7.9, and 11.7mm (equivalent to 5 degrees , 8 degrees , 10 degrees , and 15 degrees of dorsal flexion, respectively) were applied to determine gapping, tensile strength, nominal suture stress, repair deformation, and specimens with clinical failure (gap>5mm). Maximal traction was applied to measure maximum strength and failure type (i.e. suture, knot, or tendon). FINDINGS: The Triple Dresden technique resulted in decreased gapping, nominal suture stress, repair deformation, and quantity of specimens with clinical failure as compared to the other techniques. Furthermore, Triple-Dresden tendons showed greater comparative tensile and maximum strength. During maximal traction testing, this technique presented tendon failure, whereas the Krackow, Double-Kessler, and Double-Dresden techniques had suture failures. INTERPRETATION: Triple-Dresden repair results in better cyclical and maximum traction strengths, suggesting that this technique might be more appropriate when performing early mobilization after mid-substance Achilles tendon rupture repair. PMID- 29032308 TI - Comparison of mode of failure between primary and revision total knee arthroplasties. AB - INTRODUCTION: Cognizance of common reasons for failure in primary and revision TKA, together with their time course, facilitates prevention. However, there have been few reports specifically comparing modes of failure for primary vs. revision TKA using a single prosthesis. The goal of the study was to compare the survival rates, modes of failure, and time periods associated with each mode of failure, of primary vs. revision TKA. HYPOTHESIS: The survival rates, modes of failure, time period for each mode of failure, and risk factors would differ between primary and revision TKA. MATERIAL AND METHODS: Data from a consecutive cohort comprising 1606 knees (1174 patients) of primary TKA patients, and 258 knees (224 patients) of revision TKA patients, in all of whom surgery involved a P.F.C(r) prosthesis (Depuy, Johnson & Johnson, Warsaw, IN), was retrospectively reviewed. The mean follow-up periods of primary and revision TKAs were 9.2 and 9.8 years, respectively. RESULTS: The average 10- and 15-year survival rates for primary TKA were 96.7% (CI 95%,+/-0.7%) and 85.4% (CI 95%,+/-2.0%), and for revision TKA 91.4% (CI 95%,+/-2.5%) and 80.5% (CI 95%,+/-4.5%). Common modes of failure included polyethylene wear, loosening, and infection. The most common mode of failure was polyethylene wear in primary TKA, and infection in revision TKA. The mean periods (i.e., latencies) of polyethylene wear and loosening did not differ between primary and revision TKAs, but the mean period of infection was significantly longer for revision TKA (1.2 vs. 4.8 years, P=0.003). DISCUSSION: Survival rates decreased with time, particularly more than 10 years post-surgery, for both primary and revision TKAs. Continuous efforts are required to prevent and detect the various modes of failure during long-term follow-up. Greater attention is necessary to detect late infection-induced failure following revision TKA. LEVEL OF EVIDENCE: Case-control study, Level III. PMID- 29032309 TI - Anterior cruciate ligament revision with Achilles tendon allograft in young athletes. AB - BACKGROUND: Return to sport after revision ACL reconstruction is a controversial topic, several studies reported the results of different techniques and graft in sportsman, presenting an incredibly wide range of return to the same pre-injury activity level, from 0% to 100%. The purpose of this study was to evaluate the clinical outcomes and return to sport rate in young athletes after non anatomic double-bundle revision ACL reconstruction with Achilles allograft. HYPOTHESIS: The present revision technique was effective in terms of stability, return to sport and functional outcomes. MATERIAL AND METHODS: All the athletes undergone Revision ACL reconstruction with non-irradiated Achilles tendon allograft with a non-anatomical double-bundle technique were included in the study. A split Achilles tendon allograft was used to reproduce the anteromedial (AM) bundle using the over-the-top position, while the posterolateral (PL) bundle was reconstructed through a femoral tunnel located in the anatomical PL footprint. Sport activity, knee function with Lysholm score, knee laxity and re-injury or re operations were evaluated. RESULTS: Twenty-six athletes (23 males, three females) with a mean age of 23.4+/-3.6 years were evaluated at a mean follow-up of 6.0+/ 1.6 years. Overall 69% of patients returned to sport both at elite (44%) or county level (56%) after a mean 6.7+/-1.5 (3-9 range) months. The mean Lysholm score showed a significant improvement from 64.4+/-8.1 at pre-operative status to 83.8+/-11.3 at final follow-up (P<.0001). Seven patients (30%) were rated as excellent, nine (39%) as good, five (22%) as fair and 2 (9%) as poor. Three patients (12%) experienced a further graft rupture after a mean 2.6 years, (3.5 months-48 months range) and two had >5mm side-to-side difference at KT-1000. Therefore, the overall survival rate at mean six years follow-up was 81%. CONCLUSION: The ACL revision with a double-bundle technique using Achilles tendon allograft was successful in 81% of athletes at six years mean follow-up. TYPE OF STUDY AND LEVEL OF EVIDENCE: Retrospective case series, level IV. PMID- 29032310 TI - Building addiction recovery capital through online participation in a recovery community. AB - RATIONALE: This study examines how online participation in a community of recovery contributes to personal journeys of recovery. It investigates whether recovery capital building - as indicated by increased levels and quality of online social interactions - and markers of positive identity development predict retention in a recovery program designed around fostering community involvement for early stage recovery addicts. HYPOTHESES: It was predicted that online participation on the group's Facebook page and positive identity development are associated to retention in the program. METHODS: To map how participants interact online, social network analysis (SNA) based on naturally occurring online data (N = 609) on the Facebook page of a recovery community was conducted. Computerised linguistic analyses evaluated sentiment of the textual data (capturing social identity markers). Linear regression analyses evaluated whether indicators of recovery capital predict program retention. To illustrate the findings in the context of the specific recovery community, presented are two case studies of key participants who moved from the periphery to the centre of the social network. By conducting in-depth interviews with these participants, personal experiences of engagement in the online community of group members who have undergone the most significant changes since joining the community are explored. RESULTS: Retention in the program was determined by a) the number of comment 'likes' and all 'likes' received on the Facebook page; b) position in the social network (degree of centrality); and c) linguistic content around group identity and achievement. CONCLUSION: Positive online interactions between members of recovery communities support the recovery process through helping participants to develop recovery capital that binds them to groups supportive of positive change. PMID- 29032311 TI - A hybrid wavelet de-noising and Rank-Set Pair Analysis approach for forecasting hydro-meteorological time series. AB - Accurate, fast forecasting of hydro-meteorological time series is presently a major challenge in drought and flood mitigation. This paper proposes a hybrid approach, wavelet de-noising (WD) and Rank-Set Pair Analysis (RSPA), that takes full advantage of a combination of the two approaches to improve forecasts of hydro-meteorological time series. WD allows decomposition and reconstruction of a time series by the wavelet transform, and hence separation of the noise from the original series. RSPA, a more reliable and efficient version of Set Pair Analysis, is integrated with WD to form the hybrid WD-RSPA approach. Two types of hydro-meteorological data sets with different characteristics and different levels of human influences at some representative stations are used to illustrate the WD-RSPA approach. The approach is also compared to three other generic methods: the conventional Auto Regressive Integrated Moving Average (ARIMA) method, Artificial Neural Networks (ANNs) (BP-error Back Propagation, MLP Multilayer Perceptron and RBF-Radial Basis Function), and RSPA alone. Nine error metrics are used to evaluate the model performance. Compared to three other generic methods, the results generated by WD-REPA model presented invariably smaller error measures which means the forecasting capability of the WD-REPA model is better than other models. The results show that WD-RSPA is accurate, feasible, and effective. In particular, WD-RSPA is found to be the best among the various generic methods compared in this paper, even when the extreme events are included within a time series. PMID- 29032313 TI - Influence of platform diameter in the reliability and failure mode of extra-short dental implants. AB - PURPOSE: To evaluate the influence of implant diameter in the reliability and failure mode of extra-short dental implants. MATERIALS AND METHODS: Sixty-three extra-short implants (5mm-length) were allocated into three groups according to platform diameter: O4.0-mm, O5.0-mm, and O6.0-mm (21 per group). Identical abutments were torqued to the implants and standardized crowns cemented. Three samples of each group were subjected to single-load to failure (SLF) to allow the design of the step-stress profiles, and the remaining 18 were subjected to step stress accelerated life-testing (SSALT) in water. The use level probability Weibull curves, and the reliability (probability of survival) for a mission of 100,000 cycles at 100MPa, 200MPa, and 300MPa were calculated. Failed samples were characterized in scanning electron microscopy for fractographic inspection. RESULTS: No significant difference was observed for reliability regarding implant diameter for all loading missions. At 100MPa load, all groups showed reliability higher than 99%. A significant decreased reliability was observed for all groups when 200 and 300MPa missions were simulated, regardless of implant diameter. At 300MPa load, the reliability was 0%, 0%, and 5.24%, for O4.0mm, O5.0mm, and O6.0mm, respectively. The mean beta (beta) values were lower than 0.55 indicating that failures were most likely influenced by materials strength, rather than damage accumulation. The O6.0mm implant showed significantly higher characteristic stress (eta = 1,100.91MPa) than O4.0mm (1,030.25MPa) and O5.0mm implant (eta = 1,012.97MPa). Weibull modulus for O6.0-mm implant was m = 7.41, m = 14.65 for O4.0mm, and m = 11.64 for O5.0mm. The chief failure mode was abutment fracture in all groups. CONCLUSIONS: The implant diameter did not influence the reliability and failure mode of 5mm extra-short implants. PMID- 29032312 TI - Advanced oxidation protein products induce S-phase arrest of hepatocytes via the ROS-dependent, beta-catenin-CDK2-mediated pathway. AB - Liver regeneration has important clinical importance in the setting of partial hepatectomy (PH). Following PH, quiescent hepatocytes can reenter cell cycle to restore liver mass. Hepatocyte cell cycle progression, as the basic motivations of liver regeneration, can be disrupted by multiple pathological factors such as oxidative stress. This study aimed to evaluate the role of advanced oxidation protein products (AOPP) in S-phase arrest in hepatocytes. Serum AOPP level were measured during the perioperative period of PH in 33 patients with hepatocellular carcinoma (HCC). Normal Sprague Dawley rats, human and murine liver cell line (HL 7702 and AML-12) were challenged with AOPP prepared by incubation of rat serum albumin (RSA) with hypochlorous acid, and the effect of AOPP on hepatocytes cell cycle progression and liver regeneration was studied after PH. AOPP levels were increased following partial hepatectomy (PH) in patients with primary liver cancer. AOPP treatment impaired liver regeneration in rats following 70% partial hepatectomy. S-phase arrest was induced by AOPP administration in hepatocytes derived from the remnant liver at controlled times following partial hepatectomy in rats, and in HL-7702 and AML-12 cells. The effect of AOPP on hepatocyte S phase arrest was mainly mediated by a nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-dependent reactive oxygen species (ROS) generation, downregulation of downstream beta-catenin signaling and decreased cyclin dependent kinase 2 (CDK2) expression, which inhibited S-phase progression in hepatocytes. This study provides preliminary evidence that AOPP can induce S phase arrest in hepatocytes via the ROS-dependent, beta-catenin-CDK2-mediated pathway. These findings suggest a novel pathogenic role of AOPP contributing to the impaired liver regeneration and may provide the basis for developing new strategies to improve liver regeneration in patients undergoing PH. PMID- 29032314 TI - Remodeling of arterial wall: Response to changes in both blood flow and blood pressure. AB - Many studies have been performed on arterial responses to chronic changes in blood flow (BF) and blood pressure (BP). However, little is known about the effects of simultaneous changes in BF and BP. The present study was carried out to know biomechanical responses of arterial wall to the combination of increased BP, i.e. hypertension (HT), with lower or higher BF than normal, and the results were compared with those observed under normal BP, i.e. normotension (NT), combined with these BF conditions. Eight weeks old rats were subjected to BF and/or BP changes for 8 weeks until 16 weeks of age. Systemic HT was induced by the constriction of one of the renal arteries (Goldblatt HT), while BF in the CCA was reduced and increased by the constriction of the ipsilateral CCA and the ligation of the contralateral CCA, respectively. The internal diameter of the target CCA was significantly larger in higher BF groups than in lower BF ones irrespective of HT. Wall shear stress (WSS) was normalized by such compensatory changes in the diameter. Wall thickness was significantly larger in HT rats than in NT ones regardless of BF, and the wall hypertrophy contributed to restore wall hoop stress to normal level. Basal vascular tone, arterial stiffness, and wall elastic modulus were significantly larger in HT than in NT independently of BF changes. However, only in HT/lower BF group, WSS and vascular smooth muscle activated vascular contraction were smaller than in the other groups, possibly because of wall hypertrophy induced by HT. PMID- 29032315 TI - Influence of interface conditions on the response of transversely isotropic multi layered medium by impact load. AB - Multi-layered media are one of the most common phenomena in natural or artificial surroundings, and it is considered as a good candidates for biomedical applications. The transversely isotropic characteristic of materials have been widely recognized in elastic multi-layered media. Furthermore, interface conditions between transversely isotropic elastic multi-layered medium layers plays an important role in the medium's performance. Despite many numerical approaches in these analyses, very few theoretical methods are available in dealing with these two important issues. This study presents a method to compute the response of transversely isotropic elastic multi-layered medium subjected to the impact load, i.e. falling weight deflectometer load (FWD) load, when interfacial conditions are considered. Details of the mathematical derivation, implementation and verification of the proposed analytical solution are presented. The absence of positive exponential functions in the solution leads to a considerable improvement in computation efficiency and stability. Subsequent numerical results demonstrate that both transverse isotropy and interface conditions could substantially contribute to the responses of the elastic multi layered medium. PMID- 29032316 TI - Fiber-reinforced silicone for tracheobronchial stents: An experimental study. AB - A trachea is a tubular structure composed of smooth muscle that is reinforced with cartilage rings. Some diseases can cause sagging in smooth muscle and cartilaginous tissue. The end result is reduction (narrowing) of the trachea diameter. A solution to this problem is the use of tracheal stents, which are small tubular devices made of silicone. One is inserted into the trachea to prevent or correct its constriction. The purpose of tracheal stent use is to maintain cartilage support that would otherwise be lost in the airway. Current tracheal stent models present limitations in terms of shape and characteristics of the silicone used in their production. One of the most important is the large thickness of the wall, which makes its placement difficult; this mainly applies to pediatric patients. The wall thickness of the stent is closely related to the mechanical properties of the material. This study aims to test the reinforcement of silicone with three kinds of fibers, and then stents that were produced using fiber with the best compressive strength characteristics. Silicone samples were reinforced with polypropylene (PP), polyamide (PA), and carbon fiber (CF) at concentrations of 2% and 4% (vol%), which then underwent tensile strength and Shore A hardness testing. Samples with fiber showed good characteristics; surface analyses were carried out and they were used to produce stents with an internal diameter of 11 or 13mm and a length of 50mm. Stents underwent compression tests for qualitative evaluation. Samples with 2% and 4% CF blends showed the best mechanical performance, and they were used to produce stents. These samples presented similar compressive strengths at low deformation, but stents with a 4% CF blend exhibited improved compressive strength at deformations greater than 30 50% of their diameter (P <= 0.05). The addition of 2% and 4% CF blends conferred greater mechanical strength and resistance to the silicone matrix. This is particularly true at low deformation, which is the condition where the stent is used when implanted. In the finite element compression strength tests, the stent composite showed greater compression strength with the addition of fiber, and the results were in accordance with mechanical compression tests performed on the stents. In vivo tests showed that, after 30 days of post-implantation in sheep trachea, an inflammatory process occurred in the region of the trachea in contact with the stent composite and with the stent without fiber (WF). This response is a common process during the first few days of implantation. PMID- 29032317 TI - Predictors of short-term change after a brief alcohol intervention for mandated college drinkers. AB - OBJECTIVE: Brief motivational interventions (BMIs) reduce problematic drinking for some, but not all, college students. Identifying those students who are less responsive can help to guide intervention refinement. Therefore, we examined demographic, personality, and cognitive factors hypothesized to influence change after a BMI. METHOD: Students mandated for intervention following a campus alcohol violation (N=568; 28% female, 38% freshmen) completed a baseline assessment, then received a BMI, and then completed a 1-month follow-up. At both assessments, alcohol use (i.e., drinks per week, typical BAC, binge frequency) and alcohol-related problems were measured. RESULTS: Latent change score analyses revealed significant decrease in both alcohol use and problems 1month after the BMI. In the final model that predicted change in alcohol use, four factors (male sex, a "fun seeking" disposition, more perceived costs and fewer perceived benefits of change) predicted smaller decreases in alcohol use over time. In the final model that predicted change in alcohol-related problems, three factors (stronger beliefs about the centrality of alcohol to college life, more perceived costs and fewer perceived benefits of change) predicted smaller decreases in problems over time. CONCLUSIONS: Participation in a BMI reduced alcohol use and problems among mandated college students at 1-month follow-up. We identified predictors of these outcomes, which suggest the need to tailor the BMI to improve its efficacy among males and those students expressing motives (pro and cons, and fun seeking) and beliefs about the centrality of drinking in college. PMID- 29032318 TI - Adolescent substance use: Latent class and transition analysis. AB - BACKGROUND: The prevention and intervention of adolescent substance use is a public health priority. Most adolescents will engage in some form of substance use, and a sizeable minority will transition to using multiple substances. An emerging body of research takes a person-centered approach to model adolescent substance use over time; however, the findings have been equivocal. Our study modeled adolescent substance use transition patterns over three years based on a comprehensive list of substances and examined gender as a moderator. METHODS: We used three annual waves of data (Time 2, Time 3, and Time 4) from an ongoing longitudinal study of an ethnically diverse sample of 1042 adolescents originally recruited from multiple high schools in southeast Texas. Participants were 56% female, 32% Hispanics, 30% Whites, 29% African Americans, and 9% other with an average of 16.1years (SD=0.79) at Time 2. Data were analyzed using latent transition analyses. RESULTS: The study identified three substance use statuses (Mild Alcohol Use, Alcohol and Moderate Marijuana Use, and Polysubstance Use) and suggested that adolescents generally remained in the same statuses over time. When they did transition, it was typically to a more harmful substance use status. Further, males were more likely than females to be polysubstance users and had higher probabilities of transiting to and remaining in a more harmful drug use status. CONCLUSIONS: The study identifies overall and gender specific adolescent substance use transition patterns, which are vital to informing intervention development. PMID- 29032320 TI - Methodological issues of assessing the risk of a second cancer occurring in the same site as a first cancer using registry data. AB - OBJECTIVE: To present methodological issues that can arise with the assessment of the risk of a second primary cancer (SPC) occurring in the same site as a first cancer using registry data. MATERIAL AND METHODS: Data from ten French cancer registries were used, including data for patients with a first prostate cancer (in males), breast cancer (in females), and colon, lung and kidney cancer (in both sexes) diagnosed between 1989 and 2004. Standardized incidence ratios (SIRs) of SPC were computed by excluding, or not, the risk of an SPC at the same site. RESULTS: For prostate cancer, the SIR dropped from 1.11 to 0.72 when the risk of SPC of the prostate was included. SIRs increased from 1.36 to 1.45, from 1.14 to 1.21, from 1.57 to 2.01, and from 1.37 to 1.51 for breast, colon, lung, and kidney respectively. CONCLUSION: The inclusion, or not, of an SPC at the same site can impact on SPC risk estimates. PMID- 29032319 TI - Peri-operative blood transfusion for resected colon cancer: Practice patterns and outcomes in a population-based study. AB - BACKGROUND & OBJECTIVES: Literature suggests that peri-operative blood transfusion among patients with resected colon cancer may be associated with inferior long-term survival. The study objective was to characterize this association in our population. METHODS: This is a retrospective cohort study using the population-based Ontario Cancer Registry (2002-2008). Pathology reports were obtained for a 25% random sample of all cases and constituted the study population. Log binomial regression was used to identify factors associated with transfusion. Cox proportional hazards model explored the association between transfusion and cancer specific survival (CSS) and overall survival (OS). RESULTS: The study population included 7198 patients: 18% stage I, 36% stage II, 40% stage III, and 6% stage IV. Twenty-eight percent of patients were transfused. Factors independently associated with transfusion included advanced age (p<0.001), female sex (p<0.001), greater comorbidity (p<0.001), more advanced disease (p<0.001) and open surgical resection (p<0.001). Transfusion was associated with inferior CSS (HR 1.51, 95% CI 1.38-1.65) and OS (HR 1.52, 95% CI 1.41-1.63), after adjusting for important confounders. CONCLUSIONS: Peri operative transfusion rates among patients with colon cancer have decreased over time. Transfusion is associated with inferior long-term CSS and OS. PMID- 29032321 TI - Acne in late adolescence is not associated with a raised risk of subsequent malignant melanoma among men. AB - BACKGROUND: To evaluate the association of acne in late adolescence with the risk for subsequent malignant melanoma (MM) in men. METHODS: Swedish register-based cohort study of 242,096 males born between 1952 and 1956, who took part in compulsory assessments for Swedish military conscription in late adolescence between 1969 and 1975, with subsequent diagnoses of MM (n=1,058) up to December 31, 2009. Covariates included measures of childhood circumstances and information from adolescence on presence of acne, physical fitness, cognitive function, body mass index (BMI), and a summary of diagnoses. Cox regression was used for the analysis. RESULTS: In total 1,058 men were diagnosed with MM. Acne was not associated with subsequent MM, with an adjusted hazard ratio (and 95% confidence interval) of 0.95 (0.61 to 1.49). Men with parents who were agricultural workers, and men who lived in northern Sweden, had lower physical fitness, or lower cognitive function had a lower risk of MM. Overweight and obesity was associated with a raised risk, with an adjusted hazard ratio of 1.39 (1.14, 1.71). CONCLUSIONS: Acne in late adolescence is unlikely to represent a raised risk for subsequent MM in men. Overweight or obesity was identified as a raised risk for MM, possibly due to the associated increased skin surface area. PMID- 29032322 TI - Classroom social experiences in early elementary school relate to diurnal cortisol levels. AB - Social stress has been linked to altered hypothalamic-pituitary-adrenocorticol (HPA) axis activation. During elementary school, children can become exposed to negative peer relations, such as poor appraisal among classroom peers, which is considered a social stressor. However, little is known about the association between classroom peer appraisal and the physiological stress system in children. The goal of this study was to examine the association of peer acceptance and peer non-acceptance with diurnal cortisol concentrations in 222 children from 20 mainstream elementary schools (Mage=6.97years, SD=0.99, 55% boys) in the Netherlands. Saliva samples were collected at awakening, 30min post-awakening, at noon and at 8 pm during a weekend day. From these assessments, the Cortisol Awakening Response (CAR), diurnal cortisol concentration (AUCg) and diurnal cortisol slope were calculated. Peer nominations of peer acceptance (being liked), and peer non-acceptance (being disliked) were collected across a one year interval. Associations were controlled for peer victimization, age, sex and SES and children's levels of emotional problems and behavioural problems. Results showed that low peer acceptance was associated with heightened diurnal cortisol concentration (i.e., heightened AUGg), lower cortisol reductions across the day (i.e., less decreasing cortisol slope) and heightened cortisol awakening response (i.e., heightened CAR). Peer non-acceptance and the interaction between peer acceptance and peer non-acceptance (known as peer rejection) were not associated with AUCg, cortisol slope or the CAR. The findings emphasize the association between poor appraisal among classroom peers and children's heightened HPA-axis activation. This underscores the importance of the physiological stress system in studying the consequences of negative peer relations in children. PMID- 29032324 TI - Intranasal oxytocin, social cognition and neurodevelopmental disorders: A meta analysis. AB - Deficits in social cognition are pervasive and characteristic of neurodevelopmental disorders (NDDs). Clinical trials of intranasal oxytocin (IN OT) to improve social cognition have yielded inconclusive results. The current study is a meta-analysis of randomized controlled trials (RCTs) considering the effect of IN-OT on social cognitive domains across a range of NDDs. Medline, PsychINFO and Scopus were searched for RCTs published through to July 25, 2017. Seventeen studies met inclusion criteria, comprising 466 participants with a NDD. Meta-analysis using a random-effects model, revealed that IN-OT had no significant effect on emotion recognition (Hedges' g=0.08), a moderate but non significant effect on empathy (Hedges' g=0.49), and a small, significant effect on theory of mind (ToM) (Hedges' g=0.21). Meta-regression indicated that the effect of IN-OT on social cognition was not moderated by the diagnosis or age of participants, or the dose or frequency of IN-OT administration. The results highlight a need for more well-designed RCTs, as it remains difficult to draw conclusions about the potential for IN-OT to improve social cognition in NDDs. The promise of IN-OT should be considered tentative. PMID- 29032323 TI - Neural activity during traumatic film viewing is linked to endogenous estradiol and hormonal contraception. AB - Women are at higher risk for Posttraumatic Stress Disorder (PTSD) and recent research has highlighted a modulating role of female sex hormones for cognitive and emotional processes potentially underlying PTSD symptoms. However, studies combining fMRI recordings of brain activity during trauma film viewing with assessment of female sex hormones are missing. The trauma film paradigm - a widely used experimental analogue for trauma exposure - confronts healthy participants with traumatic film clips and thus allows studying peritraumatic processing under laboratory conditions. Following this paradigm, the current fMRI study examined the role of endogenous estradiol and synthetic sex hormones for the neural processing of traumatic (i.e., depicting interpersonal violence) vs. neutral films in 53 healthy women (mean age 22.3 years; 23 using hormonal contraception, HC). As predicted, traumatic films strongly activated areas of the fear processing network, such as amygdala, insula, and dorsal anterior cingulate cortex. Estradiol levels in women not using HC were positively correlated with ventromedial prefrontal activity. Furthermore, women using HC as compared to women without HC demonstrated heightened insula and dorsal anterior cingulate cortex activity during traumatic film viewing. These experimental results highlight the effects of both gonadal hormone status and HC intake on peritraumatic processing in neural regions relevant for emotion generation and regulation that have been found to be abnormal in PTSD. PMID- 29032326 TI - Production of hybrid macro/micro/nano surface structures on Ti6Al4V surfaces by picosecond laser surface texturing and their antifouling characteristics. AB - The development of surfaces which reduce biofouling has attracted much interest in practical applications. Three picosecond laser generated surface topographies (Ti1, Ti2, Ti3) on titanium were produced, treated with fluoroalkylsilane (FAS), then characterised using Scanning Electron Microscopy (SEM), Energy Dispersive X ray Spectroscopy (EDX), Raman Spectroscopy, Fourier Transform Infra-Red (FTIR) spectroscopy, contact angle measurements and white light interference microscopy. The surfaces had a range of different macro/micro/nano topographies. Ti2 had a unique, surface topography with large blunt conical peaks and was predominantly a rutile surface with closely packed, self-assembled FAS; this was the most hydrophobic sample (water contact angle 160 degrees ; DeltaGiwi was -135.29mJm 2). Bacterial attachment, adhesion and retention to the surfaces demonstrated that all the laser generated surfaces retained less bacteria than the control surface. This also occurred following the adhesion and retention assays when the bacteria were either not rinsed from the surfaces or were retained in static conditions for one hour. This work demonstrated that picosecond laser generated surfaces may be used to produce antiadhesive surfaces that significantly reduced surface fouling. It was determined that a tri-modally dimensioned surface roughness, with a blunt conical macro-topography, combined with a close-packed fluoroalkyl monolayer was required for an optimised superhydrophobic surface. These surfaces were effective even following surface immersion and static conditions for one hour, and thus may have applications in a number of food or medical industries. PMID- 29032325 TI - Novel quinoline incorporating 1,2,4-triazole/oxime hybrids: Synthesis, molecular docking, anti-inflammatory, COX inhibition, ulceroginicity and histopathological investigations. AB - A series of novel quinolines incorporating 1,2,4-triazole/oxime hybrids were prepared. They showed remarkable anti-inflammatory activity and exhibited very low incidence of gastric ulceration, compared to indomethacin. Most of the compounds tested showed remarkable inhibition of the COX-1 isozyme, with IC50's ranging from 0.48 to 28uM. Compounds 7c and 9g showed high safety profiles with normal stomach tissue integrity. Docking studies supported the observed in vitro inhibitory activity towards the COX enzymes that may explain their promising anti inflammatory activity relative to indomethacin. Moreover, differences between the COX-1 and COX-2 isozymes in observed energy scores, as well as in the number of interactions with some of the compounds tested, might predict their higher selectivity towards COX-1 rather than COX-2. Compound 9e was found to inhibit both COXs non-competitively with Ki values of 81uM and 94.6uM. PMID- 29032327 TI - A general dead-time correction method based on live-time stamping. Application to the measurement of short-lived radionuclides. AB - Dead-time correction formulae are established in the general case of superimposed non-homogeneous Poisson processes. Based on the same principles as conventional live-timed counting, this method exploits the additional information made available using digital signal processing systems, and especially the possibility to store the time stamps of live-time intervals. No approximation needs to be made to obtain those formulae. Estimates of the variances of corrected rates are also presented. This method is applied to the activity measurement of short-lived radionuclides. PMID- 29032328 TI - Effect of the anode potential on the physiology and proteome of Shewanella oneidensis MR-1. AB - Shewanella species respire using iron and manganese oxides as well as electrodes as solid terminal electron acceptors. Shewanella oneidenis MR-1 exploits mediated as well as direct extracellular electron transfer (EET) modes to transfer electrons at different formal potentials. These different EET modes at different potentials may utilise alternate electron transfer pathways. Therefore, we investigated how different anode potentials, providing different maximum microbial energy gains impacted S. oneidensis microbial physiology. Using quantitative proteomics, comparative analysis of the cellular variations to different anode potentials was performed. A label-free proteomic mass spectrometric analysis method, SWATH-MS, was used to gather quantitative information to determine physiological changes of Shewanella oneidensis MR-1 grown at different anodic potentials. S. oneidensis was cultured and grown in electrochemical cells at the set anode potentials of +0.71V, +0.21V & -0.19V versus SHE reference electrode, while the current production was monitored. At maximum current, electrodes were removed and whole-cell proteins extracted. Subsequent SWATH-MS analysis revealed information on 740 identified proteins across the three electrode potentials. For the first time, we show the abundance of S. oneidensis electron transfer proteins differs with electrode potential. PMID- 29032329 TI - Successful transdermal allergen delivery and allergen-specific immunotherapy using biodegradable microneedle patches. AB - Allergen-specific immunotherapy (SIT) is an effective treatment modality for allergic diseases such as atopic dermatitis (AD). However, frequent visits over a 3-year period as well as looming adverse events tend to discourage patient compliance. Therefore, a more convenient, effective, and safe method of SIT is needed. For several decades, use of microneedles has been promoted as an efficient and precise transdermal drug delivery method. In this study, we developed Dermatophagoides farinae (D. farinae) extract (DfE)-loaded microneedle patches, and evaluated their safety and efficacy as a novel SIT method. After 4 weeks of patch application, efficient allergen delivery and successful induction of immune response to DfE were demonstrated in mice, with no apparent adverse events. AD-induced NC/Nga mice received microneedle immunotherapy (MNIT) (10 MUg), subcutaneous immunotherapy (SCIT) (10 MUg), SCIT (100 MUg), or placebo. Both MNIT (10 MUg) and SCIT (100 MUg) treatments improved clinical and histologic manifestations of AD skin lesions, altered immunoglobulin production, dampened Th2 cellular response, and boosted Treg infiltrates, without significant side effects; whereas SCIT (10 MUg) or placebo subsets failed to show any effects. Based on the favorable safety and efficacy profiles demonstrated in mice by MNIT in the current study, we believe that MNIT may serve as a new SIT modality. PMID- 29032330 TI - Biofabricating atherosclerotic plaques: In vitro engineering of a three dimensional human fibroatheroma model. AB - Atherosclerotic plaques are cholesterol-induced inflammatory niches accumulating in the vascular sub-endothelial space. Cellular and extracellular composition of human plaques is maneuvered by local inflammation that leads to alterations in the original vascular microenvironment and to the recruitment of an invading fibrous layer (fibroatharoma). In the present study we introduce a bioengineered three-dimensional model of human fibroatheroma (ps-plaque) assembled with a tailored hanging-drop protocol. Using vi-SNE based multidimensional flow cytometry data analysis we compared the myeloid cell-populations in ps-plaques to those in plaques isolated from human carotid arteries. We observed that plasmacytoid and activated dendritic cells are the main myeloid components of human carotid plaques and that both cell types are present in the biofabricated model. We found that low-density lipoproteins affect cell viability and contribute to population polarization in ps-plaques. The current work describes the first human bioengineered in vitro model of late atherosclerotic lesion for the investigation of atherosclerosis aetiopathogenesis. PMID- 29032331 TI - Unraveling the mechanistic effects of electric field stimulation towards directing stem cell fate and function: A tissue engineering perspective. AB - Electric field (EF) stimulation can play a vital role in eliciting appropriate stem cell response. Such an approach is recently being established to guide stem cell differentiation through osteogenesis/neurogenesis/cardiomyogenesis. Despite significant recent efforts, the biophysical mechanisms by which stem cells sense, interpret and transform electrical cues into biochemical and biological signals still remain unclear. The present review critically analyses the variety of EF stimulation approaches that can be employed to evoke appropriate stem cell response and also makes an attempt to summarize the underlying concepts of this notion, placing special emphasis on stem cell based tissue engineering and regenerative medicine. This review also discusses the major signaling pathways and cellular responses that are elicited by electric stimulation, including the participation of reactive oxygen species and heat shock proteins, modulation of intracellular calcium ion concentration, ATP production and numerous other events involving the clustering or reassembling of cell surface receptors, cytoskeletal remodeling and so on. The specific advantages of using external electric stimulation in different modalities to regulate stem cell fate processes are highlighted with explicit examples, in vitro and in vivo. PMID- 29032332 TI - Long-term treatment with chaethomellic acid A reduces glomerulosclerosis and arteriolosclerosis in a rat model of chronic kidney disease. AB - The high prevalence of end-stage renal disease emphasizes the failure to provide therapies to effectively prevent and/or reverse renal fibrosis. Therefore, the aim of this study was to evaluate the effect of long-term treatment with chaethomellic acid A (CAA), which selectively blocks Ha-Ras farnesylation, on renal mass reduction-induced renal fibrosis. Male Wistar rats were sham-operated (SO) or subjected to 5/6 renal mass reduction (RMR). One week after surgery, rats were placed in four experimental groups: SO:SO rats without treatment (n=13); SO+CAA: SO rats treated with CAA (n=13); RMR:RMR rats without treatment (n=14); and RMR+CAA:RMR rats treated with CAA (n=13). CAA was intraperitoneally administered in a dose of 0.23MUg/kg three times a week for six months. Renal fibrosis was evaluated by two-dimensional ultrasonography and histopathological analysis. The kidneys of the RMR animals treated with CAA showed a significantly decrease in the medullary echogenicity (p<0.05) compared with the RMR rats that received no treatment. Glomerulosclerosis and arteriolosclerosis scores were significantly lower (p<0.001) in the RMR+CAA group when compared with the RMR group. There were no significant differences in interstitial fibrosis, interstitial inflammation and tubular dilatation scores between the RMR+CAA and RMR groups. These data suggest that CAA can be a potential future drug to attenuate the progression of chronic kidney disease. PMID- 29032333 TI - Glucagon-like peptide-1 improves beta-cell dysfunction by suppressing the miR-27a induced downregulation of ATP-binding cassette transporter A1. AB - Lipotoxicity is considered one of the main causes of deterioration in beta-cells function. Glucagon-like peptide-1 (GLP-1) has been revealed to protect and improve pancreatic beta-cell function against lipotoxicity. However, the mechanism behind these is largely unknown. The aim of this study was to investigate the effects of GLP-1 on cholesterol-induced lipotoxicity in INS-1 cells and examine the underlying mechanisms. The cell viability was determined, and caspase-3 was used to assess the effects of GLP-1 on cholesterol-induced apoptosis. The alterations of miR-27a and ABCA1 resulting from incubation with cholesterol or GLP-1 were detected by real-time PCR and western blot. The inhibition and overexpression of miR-27a were established to explore the effects of a GLP-1-mediated decrease in miR-27a. Further, Oil red O staining and cholesterol measurement were used to detect lipid accumulation. The beta-cells function was measured in glucose-stimulated insulin secretion. Our data shows that cholesterol significantly attenuated cell viability, promoted cell apoptosis, facilitated lipid accumulation, and impaired beta-cells function, and these effects were significantly reversed by GLP-1. Furthermore, the results demonstrated that GLP-1 decreased miR-27a expression and increased the expression of ABCA1. In conclusion, GLP-1 may affect cholesterol accumulation and beta-cells dysfunction by regulating the expression of miR-27a and ABCA1. PMID- 29032334 TI - Anti-hypersensitivity effects of the phthalimide derivative N-(4methyl-phenyl)-4 methylphthalimide in different pain models in mice. AB - The treatment of chronic pain remains a challenge for clinicians worldwide, independent of its pathogenesis. It motivates several studies attempting to discover strategies to treat the disease. The in silico analysis using molecular docking approach demonstrated that the phthalimide N-(4methyl-phenyl)-4 methylphthalimide (MPMPH-1) presented high affinity to adenylyl-cyclase enzyme (AC). It also prominently reduced the mechanical hypersensitivity of mice challenged by Forskolin, an AC activator. This effect lasted for up to 48h after Forskolin injection, presenting activity longer than MDL-12330A (AC inhibitor). MPMPH-1 was also effective in reducing the hypersensitivity induced by IL-1beta, bradykinin, prostaglandin E2 or epinephrine, chemical mediators that have, among others, AC as pivotal protein in their signalling cascade to induce mechanical pain behaviour. The compound presented marked inhibition in inflammatory-pain models induced by carrageenan, lipopolysaccharide or complete Freund's adjuvant, including neutrophil migration inhibition. Furthermore, it also seems to act in both peripheral and pain central-control pathways, being also effective in reducing the persistent cancer-pain behaviour induced by melanoma cells in mice. MPMPH-1 could represent a promising pharmacological tool to treat acute and chronic painful diseases, with good bioavailability, local activity, and lack of locomotor-activity interference. Further studies are necessary to determine the exact mechanism of action but it seems to involve AC enzyme as possible target. PMID- 29032335 TI - Identification of the optimal dose and calpain system regulation of tetramethylpyrazine on the prevention of skeletal muscle atrophy in hindlimb unloading rats. AB - Previous studies in our lab have shown that tetramethylpyrazine (TMP) could effectively attenuate disuse induced muscle atrophy. In order to screening out the optimal dose of tetramethylpyrazine (TMP) for protection against disuse induced muscle atrophy in hindlimb unloading (HLU) rats, in this study, we compared effects of 4 TMP doses on muscle wet weight (MWW), the ratios of muscle wet weight/body weight (MWW/BW) and muscle wet weight/dry weight (MWW/DW), fiber type composition, as well as cross-sectional area (CSA) in soleus (SOL) muscle. Consequently, we quantified optimal dose effects on both functional properties and protein expression (calpain-1, calpain-2, calpastatin and MuRF1) in SOL and extensor digitorum longus (EDL) muscles. Data indicated that the protective potential of TMP was dose-dependent: 60mg/kg TMP was most effective in terms of atrophy prevention. This dose reduced SOL MWW, MWW/BW and CSA muscle loss by 60, 60 and 54% (P<0.001), respectively. HLU-induced slow-to-fast fiber transition was reduced by 17% (P<0.01). 60mg/kg TMP also significantly lessened the decrease of contractile force, the increase of shorting velocity and fatigability induced by HLU. Besides, it also attenuated expressions of calpain-1 (SOL -8.6%, P<0.05; EDL -10.9%, P<0.05), calpain-2 (SOL -60%, P<0.001; EDL -32%, P<0.01) and MuRF1 expression (SOL -21%, P<0.001; EDL -10%, P<0.01), promoted the expression of calpastatin by 18% (P<0.05) in SOL muscle. Taken together, present study demonstrated that 60mg/kg body weight was the optimal dose of TMP against disuse induced muscle atrophy which effectively protected muscle function by inhibiting calpain-1, calpain-2 and MuRF1 expression, promoted calpastatin expression, especially in slow-twitch muscle. PMID- 29032336 TI - A mouse dry eye model induced by topical administration of the air pollutant particulate matter 10. AB - AIM: To introduce a novel dry eye mouse model induced by topical administration of the air pollutant particulate matter 10 (PM10). METHOD: A total of 60 male BALB/c mice were used in this study and divided into two groups: group A (PBS eye drops, n=30) and group B (PM10 eye drop group, n=30). Each treatment was dosed four times a day, every time 50ul with the concentration of 5mg/ml PM10, for 14 consecutive days in the right eye. The clinical manifestations of dry eye were measured before therapy and 4, 7 and 14days post-treatment respectively, which included the tear volume, tear break-up (BUT) time, corneal fluorescein staining, rose bengal staining, Lissamine Green staining and inflammatory index. Eye samples were collected on D14 and examined by histologic light microscopy, transmission electron microscopy (TEM) and scanning electron microscopy (SEM), corneal cytokeration 10 (K10) immunnostaining, and tumor necrosis factor-alpha (TNF-alpha), NF-kappaB-p65 and NF-kappaB Western Blot analysis. RESULTS: At 0d, 7d and 14d, there were no statistical changes in tear volume, BUT after treatment (P>0.05) with PBS in group A. In group B, all items showed statistical differences at each time point (P<0.05). At 14d after therapy, the fluorescein staining score of group B was higher than group A (P<0.05). The score of rose bengal staining and Lissamine Green staining in group B was also higher than that in group A (P<0.05). The number of mean layers of corneal epithelial cells in the group A was significantly lower than that in the group B (P<0.05). TEM and SEM revealed that the number of corneal epithelial microvilli were drastically reduced in group B. The number of corneal chondriosome/desmosomes was also reduced in group B by TEM. PM10 induced apoptosis in the superficial and basal corneal epithelium, and leaded to abnormal differentiation and proliferation of the ocular surface with higher expression levels of K10 and reduced number of goblet cells in the conjunctival fornix in group B. PM10 significantly increased the levels of TNF-alpha, NF-kappaB-p65 and NF-kappaB in the cornea. CONCLUSION: PM10 can damage the tear film function and cause the destruction of the structural organization of ocular surface in mice. Topical administration of PM10 in mice induces ocular surface changes that are similar to those of dry eye in humans, representing a novel model of DES. PMID- 29032337 TI - MiR-758-3p suppresses proliferation, migration and invasion of hepatocellular carcinoma cells via targeting MDM2 and mTOR. AB - Hepatocelluar carcinoma (HCC) is one of the most frequently diagnosed cancers worldwide and among the leading causes of cancer-related death. Although deregulation of microRNAs has been frequently described in HCC, imperfection is known about the precise molecular mechanisms by which microRNAs modulate the process of tumorogenesis and behavior of cancer cells. In this study, we demonstrated that miR-758-3p could suppress cell proliferation, migration and invasion in hepatocellular carcinoma cells. We screened and identified two novel miR-758-3p targets, MDM2 and mTOR. Up-regulation of miR-758-3p could specifically and markedly down-regulate the expression of MDM2 and mTOR. Additionally, miR-758 3p over-expression displayed significant suppression in HCC development. To identify the mechanisms, we further investigated the P53 and mTOR pathway and found that p-p70S6 kinase(Ser371), p-p70 S6 kinase(Thr389) and p-4E-BP1were dramatically down-regulated after miR-758-3p transfection, while an enhanced expression of P53, AKT and PRAS40 were visualized, thus suggesting that the role of miR-758-3p in HCC progression may be associated with MDM2-p53 and mTOR signaling pathways. Collectively, our results indicate that miR-758-3pserves as a tumor suppressor and plays a crucial role in inhibiting the proliferation, migration and invasion of HCC via targeting MDM2 and mTOR and implicate its potential application in cancer therapy. PMID- 29032338 TI - An analysis of suppressing migratory effect on human urinary bladder cancer cell line by silencing of snail-1. AB - BACKGROUND: Snail-1 actively participates in tumor progression, invasion, and migration. Targeting snail-1 expression can suppress the EMT process in cancer. The aim of this study was to investigate the effect of snail1 silencing on urinary bladder cancer. METHODS: Quantitative RT-PCR was used to detect snail-1 and other related metastatic genes expression following siRNA knockdown in urinary bladder cancer EJ-138 cells. The protein level of snail1 was assessed by Western blot. MTT and TUNEL assays were assessed to understand if snail-1 had survival effects on EJ-138 cells. Scratch wound healing assay measured cell motility effects after snail1 suppression. RESULTS: The significant silencing of snail-1 reached 60pmol siRNA in a 48-h post-transfection. The result of scratch assay showed that snail-1 silencing significantly decreased Vimentin, MMPs, and CXCR4 expression; however, expression of E-cadherin was induced. The cell death assay indicated that snail-1 played the crucial role in bladder cancer survival rate. CONCLUSION: These results propose that snail-1 plays a major role in the progression and migration of urinary bladder cancer, and can be a potential therapeutic target for target therapy of invasive urinary bladder cancer. PMID- 29032339 TI - Synthesis and evaluation of anticancer activity of BOC26P, an ortho-aryl chalcone sodium phosphate as water-soluble prodrugs in vitro and in vivo. AB - Major limitations of chalcones as clinical anticancer agents are water insolubility and poor bioavailability, which may be improved by a classic phosphate prodrug strategy that targets non-specific alkaline phosphatase (ALP) for releasing the parent drug in vivo. In this study, we found that BOC26P, a phosphate prodrug of chalcone OC26, exhibits excellent water solubility and improved plasma concentration in vivo by either i.v. or p.o. compared with the parent drug. In pace with decreased inhibitory activity of BOC26P against microtubule polymerization in vitro and in cells, the antiproliferative activity of BOC26P is attenuated in A549 and HLF cells. However, the antitumor effect of BOC26P increases in an A549 xenograft model as compared to the equimolar concentration of OC26, suggesting that complex tumor microenvironment would be another important influence factor to regulate the antitumor activity of BOC26Pin vivo. In conclusion, these observations showed that the traditional phosphate prodrug strategy would be a promising and easy method to increase water solubility and anticancer activity of chalcones for the clinical developments of anticancer agents. PMID- 29032340 TI - Quinic acid inhibits vascular inflammation in TNF-alpha-stimulated vascular smooth muscle cells. AB - Atherosclerosis is a chronic inflammatory disease, and the increased expression of adhesion molecules on vascular smooth muscle cells contributes to the progression of vascular disease. Quinic acid (QA) has been shown to possess radioprotection, anti-neuroinflammatory, and anti-oxidant activities; however, an anti-vascular inflammatory effect has not been reported. This study investigated the effect of QA on the expression of vascular cell adhesion molecule-1 (VCAM-1) stimulated by TNF-alpha in MOVAS cells. Pre-incubation of MOVAS cells, the mouse vascular smooth muscle cell line for 2h with QA (0.1, 1 and 10 MUg/mL) dose dependently inhibits TNF-alpha-induced mRNA and protein expression of VCAM-1 and monocyte adhesion. QA inhibits TNF-alpha-stimulated phosphorylation of MAP kinase and NK-kappaB activation. Our results indicate that QA inhibits the TNF-alpha stimulated induction of VCAM-1 in VSMC by inhibiting the MAP kinase and NF-kappaB signaling pathways and the adhesion capacity of VSMC, which may explain the ability of QA to inhibit vascular inflammation such as atherosclerosis. PMID- 29032341 TI - Ethyl acetate fraction of Eclipta alba: a potential phytopharmaceutical targeting adipocyte differentiation. AB - Natural products have always fascinated mankind for their miraculous properties. Eclipta alba (E. alba), a medicinal herb has long been used in traditional medicine for curing several pathologies. It has been shown to have anti-diabetic effect as well as hepato-protective activity. Here, in order to address metabolic derangements, the study was designed to evaluate the efficacy of E. alba and its fractions in adipogenesis inhibition and dyslipidemia. Of the crude extract and fractions screened, ethyl acetate fraction of E. alba inhibited adipocyte differentiation in 3T3-L1 pre-adipocytes and hMSC derived adipocytes. It inhibited mitotic clonal expansion and caused cell cycle arrest in G1 and S phase as suggested by western blot analysis and flow cytometry. It was also shown to have lipolytic effects. Oral administration of ethyl acetate fraction of E. alba to hamsters unveiled its anti-adipogenic as well as anti-dyslipidemic activity in vivo. Mass spectrometry analysis of ethyl acetate fraction confirmed the presence of several bioactive components, projecting it as an effective phytopharmaceutical agent. In conclusion, ethyl acetate fraction of E. alba possesses potent anti-adipogenic as well as anti-dyslipidemic activity and could be projected as an herbal formulation towards obesity. PMID- 29032342 TI - A light-up probe targeting for Bcl-2 2345 G-quadruplex DNA with carbazole TO. AB - As its significant role, the selective recognition of G-quadruplex with specific structures and functions is important in biological and medicinal chemistry. Carbazole derivatives have been reported as a kind of fluorescent probe with many excellent optical properties. In the present study, the fluorescence of the dye (carbazole TO) increased almost 70 fold in the presence of bcl-2 2345 G4 compared to that alone in aqueous buffer condition with almost no fluorescence and 10-30 fold than those in the presence of other DNAs. The binding study results by activity inhibition of G4/Hemin peroxidase experiment, NMR titration and molecular docking simulation showed the high affinity and selectivity to bcl-2 2345 G4 arises from its end-stacking interaction with G-quartet. It is said that a facile approach with excellent sensitive, good selectivity and quick response for bcl-2 2345 G-quadruplex was developed and may be used for antitumor recognition or antitumor agents. PMID- 29032343 TI - Highly selective and sensitive colorimetric determination of Cr3+ ion by 4-amino 5-methyl-4H-1,2,4-triazole-3-thiol functionalized Au nanoparticles. AB - In this work, a rapid, selective naked eyes colorimetric chemical probe for the detection of Cr3+ was developed based on functionalization of gold nanoparticles. For this purpose, surface of Au NPs was functionalized using 4-amino-5-methyl-4H 1,2,4-triazole-3-thiol (AMTT). Through colorimetric studies, it was found that in the presence of Cr3+ ions, AMTT-Au NPs instantly aggregated and resulted in a color change of the solution from red to blue. The color change of AMTT-Au NPs due to the aggregation induced by Cr3+ can be seen with even naked eyes and also by UV-Vis spectroscopy with a detection limit of 1.8MUM and 0.1MUM, respectively. AMTT-Au NPs showed excellent selectivity toward Cr3+ compared to other cations tested, including K+, Na+, Cs+, Fe3+, Ni2+, Cu2+, Co2+, Zn2+, Ba2+, Ca2+, Mg2+, Cd2+, Pb2+, Hg2+ ions and especially all trivalent lanthanide ions. The absorbance ratio (A650/A525) was linear toward Cr3+ concentrations in the range of 0.6-6.1MUM (R2=0.996). The best response was achieved over a pH range of 3-5. Furthermore, the proposed colorimetric method based on AMTT-Au NPs was successfully used for Cr3+ ion detection in plasma sample and some water samples. PMID- 29032344 TI - Simultaneous determination of alpha-asarone and beta-asarone in Acorus tatarinowii using excitation-emission matrix fluorescence coupled with chemometrics methods. AB - A chemometrics-assisted excitation-emission matrix (EEM) fluorescence method was proposed for simultaneous determination of alpha-asarone and beta-asarone in Acorus tatarinowii. Using the strategy of combining EEM data with chemometrics methods, the simultaneous determination of alpha-asarone and beta-asarone in the complex Traditional Chinese medicine system was achieved successfully, even in the presence of unexpected interferents. The physical or chemical separation step was avoided due to the use of "mathematical separation". Six second-order calibration methods were used including parallel factor analysis (PARAFAC), alternating trilinear decomposition (ATLD), alternating penalty trilinear decomposition (APTLD), self-weighted alternating trilinear decomposition (SWATLD), the unfolded partial least-squares (U-PLS) and multidimensional partial least-squares (N-PLS) with residual bilinearization (RBL). In addition, HPLC method was developed to further validate the presented strategy. Consequently, for the validation samples, the analytical results obtained by six second-order calibration methods were almost accurate. But for the Acorus tatarinowii samples, the results indicated a slightly better predictive ability of N-PLS/RBL procedure over other methods. PMID- 29032345 TI - Characterization of titanyl phthalocyanine (TiOPc) thin films by microscopic and spectroscopic method. AB - The titanyl phthalocyanine (TiOPc) thin film deposited on glass, silicon and gold substrate have been studied using Raman spectroscopy, atomic force microscopy (AFM), absorption and profilometry measurements. The TiOPc thin layers have been deposited at room temperature by the quasi-molecular beam evaporation technique. The Raman spectra have been recorded using micro Raman system equipped with a confocal microscope. Using surface Raman mapping techni que with polarized Raman spectra the polymorphic forms of the TiOPc thin films distribution have been obtained. The AFM height and phase image were examined in order to find surface features and morphology of the thin films. Additionally to compare experimental results, structure optimization and vibrational spectra calculation of single TiOPc molecule were performed using DFT calculations. The received results showed that the parameters like polymorphic form, grain size, roughness of the surface in TiOPc thin films can well characterize the obtained organic thin films structures in terms of their use in optoelectronics and photovoltaics devices. PMID- 29032346 TI - Fusion of Anthopleurin-B to AAV2 increases specificity of cardiac gene transfer. AB - AAV-mediated gene therapy has become a promising therapeutic strategy for chronic diseases. Its clinical utilization, however, is limited by the potential risk of off-target effects. In this work we attempt to overcome this challenge, hypothesizing that cardiac ion channel-specific ligands could be fused onto the AAV capsid, and narrow its tropism to cardiac myocytes. We successfully fused the cardiac sodium channel (Nav1.5)-binding toxin Anthopleurin-B onto the AAV2 capsid without compromising virus integrity, and demonstrated increased specificity of cardiomyocyte attachment. Although virus attachment to Nav1.5 did not supersede the natural heparan-mediated virus binding, heparan-binding ablated vectors carrying Anthopleurin-B eliminated hepatic and other extracardiac gene transfer, while preserving cardiac myocyte gene transfer. Virus binding to the cardiac sodium channel transiently decreased sodium current density, but did not cause any arrhythmias. Our findings expand the knowledge of attachment, infectivity, and intracellular processing of AAV vectors, and present an alternative strategy for vector retargeting. PMID- 29032347 TI - Vocalic transitions as markers of speech acoustic changes with STN-DBS in Parkinson's Disease. AB - PURPOSE: Deep Brain Stimulation of the subthalamic nucleus (STN-DBS) effectively treats cardinal symptoms of idiopathic Parkinson's disease (PD) that cannot be satisfactorily managed with medication. Research is equivocal regarding speech changes associated with STN-DBS. This study investigated the impact of STN-DBS on vocalic transitions and the relationship to intelligibility. METHODS: Eight Quebec-French speakers with PD and eight healthy controls participated. The slope of the second formant frequency (F2 slope) for glides was obtained. Locus equations (LEs) were calculated to capture vocalic transitions in consonant-vowel sequences. A visual analog scale was used to obtain judgments of intelligibility. Measures for the PD group were obtained both On and Off stimulation. RESULTS: F2 slopes and LEs differed among groups, but there were no systematic differences for On versus Off STN-DBS. On an individual level, participants with PD exhibited heterogeneous changes with DBS stimulation. Intelligibility was significantly correlated with F2 slope. CONCLUSION: F2 slope appears to be sensitive to articulatory impairment in PD and could be used in clinical settings to distinguish these speakers from healthy controls. However, acoustic metrics failed to identify systematic change with STN-DBS. The heterogeneity of results, as well as the clinical relevance of acoustic metrics are discussed. PMID- 29032349 TI - Organizational home care models across Europe: A cross sectional study. AB - BACKGROUND: Decision makers are searching for models to redesign home care and to organize health care in a more sustainable way. OBJECTIVES: The aim of this study is to identify and characterize home care models within and across European countries by means of structural characteristics and care processes at the policy and the organization level. DATA SOURCES: At the policy level, variables that reflected variation in health care policy were included based on a literature review on the home care policy for older persons in six European countries: Belgium, Finland, Germany, Iceland, Italy, and the Netherlands. At the organizational level, data on the structural characteristics and the care processes were collected from 36 home care organizations by means of a survey. Data were collected between 2013 and 2015 during the IBenC project. STUDY DESIGN: An observational, cross sectional, quantitative design was used. The analyses consisted of a principal component analysis followed by a hierarchical cluster analysis. RESULTS: Fifteen variables at the organizational level, spread across three components, explained 75.4% of the total variance. The three components made it possible to distribute home care organizations into six care models that differ on the level of patient-centered care delivery, the availability of specialized care professionals, and the level of monitoring care performance. Policy level variables did not contribute to distinguishing between home care models. CONCLUSIONS: Six home care models were identified and characterized. These models can be used to describe best practices. PMID- 29032348 TI - Systems proteomics approaches to study bacterial pathogens: application to Mycobacterium tuberculosis. AB - Significant developments and improvements in basic and clinical research notwithstanding, infectious diseases still claim at least 13 million lives annually. Classical research approaches have deciphered many molecular mechanisms underlying infection. Today it is increasingly recognized that multiple molecular mechanisms cooperate to constitute a complex system that is used by a given pathogen to interfere with the biochemical processes of the host. Therefore, systems-level approaches now complement the standard molecular biology techniques to investigate pathogens and their interactions with the human host. Here we review omic studies in Mycobacterium tuberculosis, the causative agent of tuberculosis, with a particular focus on proteomic methods and their application to the bacilli. Likewise, the discussed methods are directly portable to other bacterial pathogens. PMID- 29032350 TI - Identifying characteristics of the most severely impaired chronic pain patients treated at a specialized inpatient pain clinic. AB - BACKGROUND AND AIMS: Patients suffering from chronic nonmalignant pain constitute a heterogeneous population in terms of clinical presentation and treatment results. Few data are available about what distinguishes different groups in this huge population of patients with chronic persistent pain (CPP). A subgroup that is poorly studied, consists of the most severely impaired chronic pain patients. At the Uppsala University Hospital Pain Clinic, there is a specialized department accepting the most complex patients for rehabilitation. In the endeavour to improve and evaluate treatment for this subgroup, a better understanding of the complex nature of the illness is essential. This prospective study aimed to describe the characteristics of this subgroup of patients with CPP. METHODS: Seventy-two consecutive patients enrolled in the Uppsala programme were evaluated. We collected data on demographics, type of pain and experienced symptoms other than pain using a checklist of 41 possible symptoms. Psychiatric comorbidity was assessed by a psychiatrist using a structured clinical interview. Quality of life (QoL), pain rating and medication/drug/alcohol usage were measured by validated questionnaires: SF-36, NRS, DUDIT and AUDIT. Concerning physical functioning and sick leave, a comparison was made with data from the Swedish Quality Register Registry for pain rehabilitation (SQRP). RESULTS: The cohort consisted of 61% women and the average age was 45 (range 20-70) years. For this cohort, 74% reported being on sick leave or disability-pension. In the SQRP 59% were on sick leave at the time they entered the rehabilitation programmes [1]. On average, the study-population reported 22 symptoms other than pain, to be at a high rate of severity. Patients treated in conventional pain-rehabilitation programmes reported a mean of 10 symptoms in average. Symptoms reported with the highest frequency (>80%), were lethargy, tiredness, headache and difficulties concentrating. Seventy-six percent were diagnosed with a psychiatric disorder. Sixty-nine fulfilled the criteria for depression or depression/anxiety disorder despite that most (65%) were treated with psychotropic medication. Alcohol/drug abuse was minimal. Seventy-one percent were on opioids but the doses were moderate (<100mg) MEq. The pain rating was >=7 (out of a maximum of 10) for 60% of the patients. CONCLUSION: This study describes what makes the subgroup of pain patients most affected by their pain special according to associated factors and comorbidity We found that they were distinguished by a high degree of psychiatric comorbidity, low physical functioning and extreme levels of symptom preoccupation/hypervigilance. Many severe symptoms additional to pain (e.g. depression/anxiety, tiredness, disturbed sleep, lack of concentration, constipation) were reported. The group seems hypervigilant, overwhelmed with a multitude of different symptoms on a high severity level. IMPLICATIONS: When treating this complex group, the expressions of the illness can act as obstacles to achieve successful treatment outcomes. The study provides evidence based information, for a better understanding of the needs concerning these pain patients. Our result indicates that parallel assessment and treatment of psychiatric comorbidities and sleep disorders combined with traditional rehabilitation, i.e. physical activation and cognitive reorganization are imperative for improved outcomes. PMID- 29032351 TI - Testosterone-induced modulation of peroxisomal morphology and peroxisome-related gene expression in brown trout (Salmo trutta f. fario) primary hepatocytes. AB - Disruption of androgenic signaling has been linked to possible cross-modulation with other hormone-mediated pathways. Therefore, our objective was to explore effects caused by testosterone - T (1, 10 and 50MUM) in peroxisomal signaling of brown trout hepatocytes. To study the underlying paths involved, several co exposure conditions were tested, with flutamide - F (anti-androgen) and ICI 182,780 - ICI (anti-estrogen). Molecular and morphological approaches were both evaluated. Peroxisome proliferator-activated receptor alpha (PPARalpha), catalase and urate oxidase were the selected targets for gene expression analysis. The vitellogenin A gene was also included as a biomarker of estrogenicity. Peroxisome relative volumes were estimated by immunofluorescence, and transmission electron microscopy was used for qualitative morphological control. The single exposures of T caused a significant down-regulation of urate oxidase (10 and 50MUM) and a general up-regulation of vitellogenin. A significant reduction of peroxisome relative volumes and smaller peroxisome profiles were observed at 50MUM. Co administration of T and ICI reversed the morphological modifications and vitellogenin levels. The simultaneous exposure of T and F caused a significant and concentration-dependent diminishing in vitellogenin expression. Together, the findings suggest that in the tested model, T acted via both androgen and estrogen receptors to shape the peroxisomal related targets. PMID- 29032352 TI - Physiological impacts of acute Cu exposure on deep-sea vent mussel Bathymodiolus azoricus under a deep-sea mining activity scenario. AB - Over the past years, several studies have been dedicated to understanding the physiological ability of the vent mussel Bathymodiolus azoricus to overcome the high metal concentrations present in their surrounding hydrothermal environment. Potential deep-sea mining activities at Azores Triple junction hydrothermal vent deposits would inevitably lead to the emergence of new fluid sources close to mussel beds, with consequent emission of high metal concentrations and potential resolubilization of Cu from minerals formed during the active phase of the vent field. Copper is an essential metal playing a key role in the activation of metalloenzymes and metalloproteins responsible for important cellular metabolic processes and tissue homeostasis. However, excessive intracellular amounts of reactive Cu ions may cause irreversible damages triggering possible cell apoptosis. In the present study, B. azoricus was exposed to increasing concentrations of Cu for 96h in conditions of temperature and hydrostatic pressure similar to those experienced at the Lucky Strike hydrothermal vent field. Specimens were kept in 1L flasks, exposed to four Cu concentrations: 0MUg/L (control), 300, 800 and 1600MUg/L and pressurized to 1750bar. We addressed the question of how increased Cu concentration would affect the function of antioxidant defense proteins and expression of antioxidant and immune-related genes in B. azoricus. Both antioxidant enzymatic activities and gene expression were examined in gills, mantle and digestive gland tissues of exposed vent mussels. Our study reveals that stressful short-term Cu exposure has a strong effect on molecular metabolism of the hydrothermal vent mussel, especially in gill tissue. Initially, both the stress caused by unpressurization or by Cu exposure was associated with high antioxidant enzyme activities and tissue specific transcriptional up-regulation. However, mussels exposed to increased Cu concentrations showed both antioxidant and immune-related gene suppression. Under a mining activity scenario, the release of an excess of dissolved Cu to the vent environment may cause serious changes in cellular defense mechanisms of B. azoricus. This outcome, while adding to our knowledge of Cu toxicity, highlights the potentially deleterious impacts of mining activities on the physiology of deep-sea organisms. PMID- 29032353 TI - Rates of Joint Replacement Surgery in New Zealand, 1999-2015: A Comparison of Rheumatoid Arthritis and Osteoarthritis. AB - OBJECTIVE: To determine rates of joint replacement for people with rheumatoid arthritis (RA) and osteoarthritis (OA) and to examine the characteristics of those receiving elbow replacements. METHODS: Data were extracted from the New Zealand Joint Registry from 1999 to 2015 and annual rates calculated. RESULTS: Rates of joint replacement increased over time for OA but not RA. Elbow replacement was the only procedure performed more commonly in RA. CONCLUSION: There has been a substantial increase in joint replacement for OA in New Zealand. For RA, where access to biologics has been limited to those with erosions, joint replacement rates have not declined, with the exception of elbow replacements. PMID- 29032354 TI - Exercise for Hand Osteoarthritis: A Cochrane Systematic Review. AB - OBJECTIVE: To assess the benefits and harms of exercise compared with other interventions, including placebo or no intervention, in people with hand osteoarthritis (OA). METHODS: Systematic review using Cochrane Collaboration methodology. Six electronic databases were searched up until September 2015. INCLUSION CRITERIA: randomized or controlled clinical trials comparing therapeutic exercise versus no exercise, or comparing different exercise programs. MAIN OUTCOMES: hand pain, hand function, finger joint stiffness, quality of life, adverse events, and withdrawals because of adverse effects. Risk of bias and quality of the evidence were assessed. RESULTS: Seven trials were included in the review, and up to 5 trials (n = 381) were included in the pooled analyses with data from postintervention. Compared to no exercise, low-quality evidence indicated that exercise may improve hand pain [5 trials, standardized mean difference (SMD) -0.27, 95% CI -0.47 to -0.07], hand function (4 trials, SMD -0.28, 95% CI -0.58 to 0.02), and finger joint stiffness (4 trials, SMD -0.36, 95% CI -0.58 to -0.15) in people with hand OA. Quality of life was evaluated by 1 study (113 participants) showing very low-quality evidence for no difference. Three studies reported on adverse events, which were very few and not severe. CONCLUSION: Pooled results from 5 studies with low risk of bias showed low quality evidence for small to moderate beneficial effects of exercise on hand pain, function, and finger joint stiffness postintervention. Estimated effect sizes were small, and whether they represent a clinically important change may be debated. PMID- 29032357 TI - Actin assembly mechanisms at a glance. AB - The actin cytoskeleton and associated motor proteins provide the driving forces for establishing the astonishing morphological diversity and dynamics of mammalian cells. Aside from functions in protruding and contracting cell membranes for motility, differentiation or cell division, the actin cytoskeleton provides forces to shape and move intracellular membranes of organelles and vesicles. To establish the many different actin assembly functions required in time and space, actin nucleators are targeted to specific subcellular compartments, thereby restricting the generation of specific actin filament structures to those sites. Recent research has revealed that targeting and activation of actin filament nucleators, elongators and myosin motors are tightly coordinated by conserved protein complexes to orchestrate force generation. In this Cell Science at a Glance article and the accompanying poster, we summarize and discuss the current knowledge on the corresponding protein complexes and their modes of action in actin nucleation, elongation and force generation. PMID- 29032358 TI - A rim-and-spoke hypothesis to explain the biomechanical roles for cytoplasmic intermediate filament networks. AB - Textbook images of keratin intermediate filament (IF) networks in epithelial cells and the functional compromization of the epidermis by keratin mutations promulgate a mechanical role for this important cytoskeletal component. In stratified epithelia, keratin filaments form prominent radial spokes that are focused onto cell-cell contact sites, i.e. the desmosomes. In this Hypothesis, we draw attention to a subset of keratin filaments that are apposed to the plasma membrane. They form a rim of filaments interconnecting the desmosomes in a circumferential network. We hypothesize that they are part of a rim-and-spoke arrangement of IFs in epithelia. From our review of the literature, we extend this functional role for the subplasmalemmal rim of IFs to any cell, in which plasma membrane support is required, provided these filaments connect directly or indirectly to the plasma membrane. Furthermore, cytoplasmic IF networks physically link the outer nuclear and plasma membranes, but their participation in mechanotransduction processes remain largely unconsidered. Therefore, we also discuss the potential biomechanical and mechanosensory role(s) of the cytoplasmic IF network in terms of such a rim (i.e. subplasmalemmal)-and-spoke arrangement for cytoplasmic IF networks. PMID- 29032360 TI - Management of mature athletes with cardiovascular conditions. PMID- 29032361 TI - Myocardial biopsy: techniques and indications. PMID- 29032359 TI - Nanodisc-based kinetic assays reveal distinct effects of phospholipid headgroups on the phosphoenzyme transition of sarcoplasmic reticulum Ca2+-ATPase. AB - Sarco(endo)plasmic reticulum Ca2+-ATPase catalyzes ATP-driven Ca2+ transport from the cytoplasm to the lumen and is critical for a range of cell functions, including muscle relaxation. Here, we investigated the effects of the headgroups of the 1-palmitoyl-2-oleoyl glycerophospholipids phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylserine (PS), and phosphatidylglycerol (PG) on sarcoplasmic reticulum (SR) Ca2+-ATPase embedded into a nanodisc, a lipid bilayer construct harboring the specific lipid. We found that Ca2+-ATPase activity in a PC bilayer is comparable with that of SR vesicles and is suppressed in the other phospholipids, especially in PS. Ca2+ affinity at the high-affinity transport sites in PC was similar to that of SR vesicles, but 2-3-fold reduced in PE and PS. Ca2+ on- and off-rates in the non-phosphorylated ATPase were markedly reduced in PS. Rate-limiting phosphoenzyme (EP) conformational transition in 0.1 m KCl was as rapid in PC as in SR vesicles, but slowed in other phospholipids, especially in PS. Using kinetic plots of the logarithm of rate versus the square of mean activity coefficient of solutes in 0.1-1 m KCl, we noted that PC is optimal for the EP transition, but PG and especially PS had markedly unfavorable electrostatic effects, and PE exhibited a strong non-electrostatic restriction. Thus, the major SR membrane lipid PC is optimal for all steps and, unlike the other headgroups, contributes favorable electrostatics and non-electrostatic elements during the EP transition. Our analyses further revealed that the surface charge of the lipid bilayer directly modulates the transition rate. PMID- 29032362 TI - Simple six-item clinical score improves risk prediction capability of stress echocardiography. AB - OBJECTIVES: To assess the value of a simple score integrating non-ischaemia related variables in expanding the wall motion abnormalities risk power during stress echocardiography (SE). METHODS: Study includes 14 279 patients who underwent SE for evaluation of coronary artery disease. All-cause death was the end point. Patients were randomly divided into the modelling and validation group of equal size. In the modelling group, multivariate analysis was conducted using clinical, rest and SE data, and a score was obtained from the number of non ischaemia-related independent prognostic predictors. The score prognostic capability was compared in both groups. RESULTS: During a median follow-up of 31 months, 1230 patients died: 622 (9%) in the modelling and 608 (9%) in the validation group (p=0.68). Independent predictors of mortality were ischaemia at SE (HR 1.77, 95% CI 1.49 to 2.12; p<0.0001) and six other parameters: age>65 years, wall motion at rest, diabetes, left bundle branch block, anti-ischaemic therapy and male sex. Risk score resulted prognostically effective in the modelling and validation groups, both with and without inducible ischaemia subset. When risk score was included in the multivariate analysis, besides ischaemia at SE it was the only independent predictor of mortality in the modelling (HR 1.70, 95% CI 1.60 to 1.82; p<0.0001), in the validation (HR 1.77, 95% CI 1.65 to 1.90; p<0.0001) and in the overall group (HR 1.73, 95% CI 1.66 to 1.82; p<0.0001). CONCLUSIONS: Simple clinical variables may be able to optimise SE risk stratification. PMID- 29032363 TI - 25-year-old man with chest pain. AB - CLINICAL INTRODUCTION: A 25-year-old man presented with complaints of acute-onset chest pain for 2 hours associated with diaphoresis and generalised weakness. He had history of smoking for 10 years. There was no history of hypertension, diabetes, family history of premature coronary artery disease or drug abuse. On evaluation, his heart rate was 76/min, blood pressure 130/90 mm Hg and oxygen saturation 97% on room air. Cardiovascular examination was normal. The ECG is shown in figure 1.heartjnl;104/1/72/F1F1F1Figure 1. PMID- 29032364 TI - Gymnastics injury incidence during the 2008, 2012 and 2016 Olympic Games: analysis of prospectively collected surveillance data from 963 registered gymnasts during Olympic Games. AB - OBJECTIVE: To determine the incidence and characteristics of injuries in female and male gymnastics disciplines (artistic, rhythmic and trampoline) during three Olympic Games with a view to ultimately improving injury prevention. METHODS: The National Olympic Committee's head physicians and the medical teams of the Local Organising Committee of the Olympic Games reported daily the occurrence (or non occurrence) of newly sustained injuries in artistic, rhythmic and trampoline gymnastics on a standardised report form during the 2008, 2012 and 2016 Summer Olympic Games. RESULTS: During the three Olympic Games, 81 injuries were reported in a total of 963 registered gymnasts, corresponding to an incidence of 84 injuries (95% CI 67 to 102) per 1000 registered gymnasts, with no difference in injury incidence between female and male gymnasts. Thirty-eight per cent of injuries led to time-loss from sport. The most frequent injury location and injury type were the ankle (22%) and sprain (35%), respectively. The most common diagnosis was ankle sprain (14% of all injuries and 23% of time-loss injuries). The injury incidence was highest in female (107+/-35) and male artistic gymnastics (83+/-32), followed by female rhythmic gymnastics (73+/-30), and lower in male (63+/-69) and female (43+/-43) trampoline gymnastics. CONCLUSIONS: Research should focus on preventing injuries in artistic gymnastics and of the condition of ankle sprain. Injury surveillance studies should be continued during major championships and throughout the entire competitive season as the Olympic Games provides only a snapshot (although an important one). PMID- 29032365 TI - How does academic achievement relate to cardiorespiratory fitness, self-reported physical activity and objectively reported physical activity: a systematic review in children and adolescents aged 6-18 years. AB - OBJECTIVE: This report aimed to systematically review the evidence for a differential association between objective and self-reported physical activity and cardiorespiratory fitness on academic achievement. DESIGN: Systematic review. DATA SOURCES: Studies were identified from searches in Embase, Education Resources Information Center, PubMed, PsycINFO, SPORTdiscus and Web of Science databases from January 2000 to December 2016. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Eligibility criteria included cross-sectional, longitudinal and interventional study designs. Outcomes included students' school grade or a standardised test or measure of academic achievement. Explanatory variables were cardiorespiratory fitness and objective and self-reported physical activity. Inclusion criteria included school-aged children and adolescents aged-18 years (or students from primary to secondary school when student's participants age was not described) and articles published in English, Portuguese or Spanish. RESULTS: A total of 51 articles met inclusion criteria: 41 cross-sectional, 2 intervention and 8 longitudinal studies. Results from 11 studies were inconsistent regarding the relationship between objectively measured physical activity and academic achievement. Ten of the 16 articles reported positive associations between self reported physical activity and academic achievement. From the 22 studies that analysed the relationship between cardiorespiratory fitness and academic achievement, it was verified that they all generally support the beneficial effect of cardiorespiratory fitness on students' academic achievement. CONCLUSION: Higher cardiorespiratory fitness may be important to enhance children and adolescents' health and, additionally, academic achievement. Due to a lack of consensus across studies, methodological issues associated with the assessment of physical activity should be considered when investigating physical activity and academic achievement. PMID- 29032366 TI - From assistive to enhancing technology: should the treatment-enhancement distinction apply to future assistive and augmenting technologies? AB - The treatment-enhancement distinction is often used to delineate acceptable and unacceptable medical interventions. It is likely that future assistive and augmenting technologies will also soon develop to a level that they might be considered to provide users, in particular those with disabilities, with abilities that go beyond natural human limits, and become in effect an enhancing technology. In this paper, we describe how this process might take place, and discuss the moral implications of such developments. We argue that such developments are morally acceptable and indeed desirable. PMID- 29032367 TI - A flimsy case for the use of non-human primates in research: a reply to Arnason. PMID- 29032368 TI - The ethical justification for the use of non-human primates in research: the Weatherall report revisited. AB - The Weatherall report on the use of non-human primates in research was published in 2006. Its main conclusion was that there is a strong scientific case for the use of non-human primates in some cases, but the report stressed the importance of evaluating each case in the light of the availability of alternatives. In addition to arguing for the scientific necessity of using non-human primates in research, the report also provided an ethical justification. As could be expected, the report was harshly criticised by animal rights groups, but in the academic literature, only two critical replies appeared. In what follows, I will describe the ethical justification for non-human primate research as it is laid out in the Weatherall report and then consider the criticism in the academic literature. I conclude that the report's ethical justification for the use of non human primates in research, in particular in basic neuroscientific research, has not been convincingly challenged by its critics. Since the criticism of the report is limited and represents only a small part of the academic discussion about the use of non-human primates in research, and a still smaller part of the ethical discussion about animal research, it is important that the discussion continue both at the academic and social level. PMID- 29032369 TI - Patricia Keely (1963-2017). PMID- 29032370 TI - An immunofluorescence assay for extracellular matrix components highlights the role of epithelial cells in producing a stable, fibrillar extracellular matrix. AB - Activated fibroblasts are considered major drivers of fibrotic disease progression through the production of excessive extracellular matrix (ECM) in response to signals from damaged epithelial and inflammatory cells. Nevertheless, epithelial cells are capable of expressing components of the ECM, cross-linking enzymes that increase its stability and are sensitive to factors involved in the early stages of fibrosis. We therefore wanted to test the hypothesis that epithelial cells can deposit ECM in response to stimulation in a comparable manner to fibroblasts. We performed immunofluorescence analysis of components of stable, mature extracellular matrix produced by primary human renal proximal tubular epithelial cells and renal fibroblasts in response to cytokine stimulation. Whilst fibroblasts produced a higher basal level of extracellular matrix components, epithelial cells were able to deposit significant levels of fibronectin, collagen I, III and IV in response to cytokine stimulation. In response to hypoxia, epithelial cells showed an increase in collagen IV deposition but not in response to the acute stress stimuli aristolochic acid or hydrogen peroxide. When epithelial cells were in co-culture with fibroblasts we observed significant increases in the level of matrix deposition which could be reduced by transforming growth factor beta (TGF-beta) blockade. Our results highlight the role of epithelial cells acting as efficient producers of stable extracellular matrix which could contribute to renal tubule thickening in fibrosis. PMID- 29032371 TI - Reassessing the significance of the PAH c.158G>A (p.Arg53His) variant in patients with hyperphenylalaninemia. AB - BACKGROUND: The accurate interpretation of sequence variation is critical for successful molecular diagnoses. It is also fundamental to the accurate diagnosis and treatment of phenylketonuria (PKU). This study aims to evaluate the significance of the c.158G>A (p.Arg53His) variant in the PAH gene, which was previously reported to be a pathogenic mutation that results in decreased phenylalanine hydroxylase enzyme activity in hyperphenylalaninemia (HPA) patients. METHODS: Seven unrelated Korean patients with HPA genotyped with the c.158G>A variant were included in this study. The variant c.158G>A was classified by the standards and guidelines for the interpretation of sequence variants by the American College of Medical Genetics and Genomics and the Association for Molecular Pathology. RESULTS: By both directly collecting genetic data and comprehensively reviewing the existing literature, we found that this variant is more appropriately classified as "Likely benign" rather than pathogenic. The allele's frequency is 2.57% in the general Korean population, which was greater than expected for phenylketonuria. This variant was observed to be homozygous in healthy subjects and was also observed in cis with other pathogenic variants. It is common in East Asian populations (especially in Koreans) compared to Western populations. There is a possibility that it causes decreased enzyme activity without leading to the full pathology of phenylketonuria. CONCLUSIONS: This study expands our understanding of the consequences of variation in PAH and its relationship to HPA. PMID- 29032372 TI - Parenchymal-Sparing Surgery for the Surgical Treatment of Multiple Colorectal Liver Metastases Is a Safer Approach than Major Hepatectomy Not Impairing Patients' Prognosis: A Bi-Institutional Propensity Score-Matched Analysis. AB - BACKGROUND: The performance of parenchymal-sparing hepatectomy (PSH) versus major hepatectomy (MH) in patients with multiple colorectal liver metastases (CLM) is a matter that is yet debated. We investigated the outcome of patients with multiple CLM undergoing PSH instead of MH. METHODS: Databases at 2 institutions were reviewed. A propensity score-matched analysis was applied. Among 554 patients, 110 undergoing PSH and 110 undergoing MH were matched. They were similar in baseline characteristics, comorbidity, and tumor features. Primary outcomes were short- and long-term outcomes. RESULTS: Morbidity was significantly higher in the MH group, while mortality was not significantly different. There were no differences in free-margins width, but a trend of increased survival was seen in the PSH group with a median advantage of 6 months over the MH group. Among the prognostic factors, the T status (hazard ratio [HR] 2.6; p = 0.001), the N status (HR 2.9; p = 0.001), the timing of CLM diagnosis (HR 2.1; p = 0.002), the tumor number (HR 2.0; p = 0.001), the tumor size (HR 2.2; p = 0.015), and the neo adjuvant chemotherapy (HR 1.7; p = 0.023) were found to be statistically and independently significant for survival. CONCLUSIONS: PSH conveys advantage over MH in terms of decreased postoperative morbidity, and a trend of survival benefit. PSH should be considered a suitable alternative to MH whenever it is technically feasible. PMID- 29032373 TI - Differentiating Clostridium difficile Colitis from Clostridium difficile Colonization in Ulcerative Colitis: A Role for Procalcitonin. AB - BACKGROUND/AIMS: Clostridium difficile infection (CDI) frequently complicates ulcerative colitis (UC) and can mimic disease flare. Differentiating UC flare from CDI remains a clinical challenge, particularly due to C. difficile colonization. Procalcitonin (PCT) is a serum biomarker for bacterial infections. We hypothesized that PCT would differentiate acute CDI from UC flare and C. difficile colonization. METHODS: A single-center prospective cohort study was conducted from 2013 to 2016. All UC patients with a stool sample for C. difficile testing were eligible. A total of 117 patients were enrolled, while 20 were excluded. Chart review was performed. RESULTS: Among 27 patients with CDI, median PCT was 60.7 (range 26-560.6) pg/mL, while among 90 patients without CDI, median PCT was 56.7 (range 25.1-2,252) pg/mL (p = 0.9). It was found that 14 patients with CDI responded completely to C. difficile treatment (CDI-R), while 8 patients did not and were diagnosed with UC flare (CDI-NR). For CDI-R, median PCT was 104.5 (range 26.3-560.6), compared to 40.3 (range 26.0-116.3) for CDI-NR (p = 0.036). CONCLUSIONS: In UC patients presenting with diarrhea, serum PCT was not significantly higher in UC patients with positive C. difficile testing. However, PCT was significantly elevated in CDI-R versus CDI-NR, suggesting that PCT may have utility in making this discrimination. PMID- 29032374 TI - The ALPPS Approach for Colorectal Liver Metastases: Impact of KRAS Mutation Status in Survival. AB - BACKGROUND/AIMS: Kirsten rat sarcoma viral oncogene homolog (KRAS) mutations influence survival after hepatectomy for colorectal liver metastases (CRLM). However, their prognostic significance has never been evaluated in patients who undergo Associating Liver Partition and Portal vein occlusion for Staged hepatectomy (ALPPS). METHODS: Between June 2011 and March 2016, 26 patients underwent ALPPS for CRLM. Complications were classified according to the Clavien Dindo classification. Bi- and multivariate cox analyses were performed to evaluate variables potentially associated with survival. RESULTS: Overall, morbidity grade >=3a and 90-day mortality were 38.5 and 0%, respectively. The median follow-up from the time of discharge was 21.5 months (interquartile range 9.6-35.6). One- and 3-year overall survival (OS) was 83.4 and 48.9%, respectively. Patients with mutated (MT) KRAS had a median OS of 15.3 vs. 38.3 months for those with wild-type (WT) KRAS (p < 0.0001). Median disease-free survival was 7.9, 5.6 vs. 12.3 months for MT and WT KRAS, respectively (p = 0.023). KRAS mutation was found to be an independent risk factor for OS (hazard ratio 7.15, 95% CI 1.50-34.11; p = 0.014). CONCLUSION: KRAS mutation is an independent predictor of poor survival after ALPPS. This finding will help to optimize patient selection, both avoiding futile surgical indication and maximizing the benefit for patients with extensive disease who are otherwise subjected to high-risk aggressive surgery. PMID- 29032375 TI - Erratum. PMID- 29032376 TI - Impact of Uric Acid Levels on Kidney Disease Progression. AB - BACKGROUND: Hyperuricemia is associated with the progression of chronic kidney disease (CKD), but it is not known whether the relationship is causal. We examined the association of hyperuricemia and uric acid lowering therapy (UALT) with progression of CKD in patients with CKD 3 and 4 in the Cleveland Clinic CKD registry. METHODS: We included 1,676 patients with CKD stages 3 and 4 from Ohio, who had measured their uric acid (UA) levels a year prior to the recording of the second eGFR <60 mL/min/1.73 m2, and follow-up eGFR, between 2005 and 2009. Our primary composite outcome included a 50% drop in eGFR or progression to ESRD. Secondary outcomes included the rate of decline in eGFR, all-cause mortality, progression to ESRD, and a composite measure of progression to ESRD or death. We assessed the association between UA, UALT, and outcomes using Cox models and competing risks regression models. RESULTS: In multivariable models, higher UA was associated with the composite endpoint, but it reached statistical significance only in the 4th quartile (>=8.9 mg/dL). Receipt of UALT was significantly associated with increased risk of the composite outcome. Neither UA nor UALT (considered a time-dependent covariate) was significantly associated with mortality. The inference was similar for UA as high vs. low, quartiles, or continuous. Similarly, neither high UA nor UALT were significantly associated with ESRD, the composite of ESRD and mortality, or eGFR decline. CONCLUSIONS: Hyperuricemia is associated with increased risk of progression to ESRD in patients with CKD stages 3 and 4, but UALT does not ameliorate the risk, suggesting that the relationship is not causal. PMID- 29032377 TI - MicroRNA-210 Modulates the Cellular Energy Metabolism Shift During H2O2-Induced Oxidative Stress by Repressing ISCU in H9c2 Cardiomyocytes. AB - BACKGROUND/AIMS: The myocardial energy metabolism shift is one of the most important pathological features of ischemic heart disease (IHD). Although several microRNAs (miRs) are involved in the regulation of myocardial energy metabolism, their exact effects and underlying mechanisms remain unclear. The aim of this study was to investigate whether microRNA(miR-210) regulates the energy metabolism shift during oxidative stress in H9c2 cardiomyocytes. METHODS: Cell survival was analyzed via CCK assay. The energy metabolism shift was detected by lactate assay, ATP assay and RT2 profiler glucose metabolism PCR array. Protein and mRNA expression levels were determined by western blot and qPCR. We also used kits to detect the activity of Complex I, Sirt3 and the NAD+/NADH ratio. RESULTS: We determined that miR-210 promoted the energy metabolism shift. The iron-sulfur cluster assembly protein (ISCU) was a target of miR-210. Additionally, we detected the activity of complex I and found that miR-210 inhibits mitochondrial respiration. Interestingly, miR-210 may also indirectly regulate SIRT3 by regulating ISCU. CONCLUSION: Our results confirm that miR-210 is essential and sufficient for modulating the cellular energy metabolism shift during H2O2 induced oxidative stress in H9c2 cardiomyocytes by targeting ISCU. PMID- 29032378 TI - Survey Results of the Expert Meeting on Laparoscopic Living Donor Hepatectomy and Literature Review. AB - BACKGROUND: Because laparoscopic donor surgery has been successful in pediatric living donor liver transplantation, its application is expanding to right hepatectomy. However, there is no consensus on the indications for laparoscopic donor hepatectomy or on the details of the surgical technique. OBJECTIVE: To evaluate the current status of laparoscopic donor hepatectomy and to summarize the expert opinion on it. METHODS: Before the expert meeting on September 8, 2016, in Seoul, Korea, a survey was undertaken from expert liver surgeons from around the world. RESULTS: Fifteen of 17 (88.2%) surgeons responded to the survey. The selection criteria for laparoscopic donor surgery are stricter than for open surgery in terms of the anatomy, remnant liver volume, and recipient's condition. There is no consensus on the instruments or equipment used. A literature review of laparoscopic donor hepatectomy showed that the use of this method is increasing and the short-term outcomes are similar to those of open surgery. CONCLUSIONS: This survey and literature review show that laparoscopic donor hepatectomy is performed by experienced surgeons in selected cases, and that its incidence is increasing worldwide. PMID- 29032379 TI - Oral Bicarbonate Slows Decline of Residual Renal Function in Peritoneal Dialysis Patients. AB - BACKGROUND/AIMS: Metabolic acidosis is a common consequence of end-stage renal disease (ESRD) which may result in a substantial adverse outcome. The effect of oral bicarbonate on the preservation of residual renal function (RRF) in peritoneal dialysis (PD) patients has been rarely reported. METHODS: We randomly assigned 40 continuous ambulatory peritoneal dialysis (CAPD) patients to the oral bicarbonate group or placebo group at a 1: 1 ratio. All enrollments were followed for a duration of 104 weeks. We took residual creatinine clearance (CCr), a measure of residual renal function (RRF), as the primary outcome. Residual CCr was calculated as the average of urea and creatinine clearance from a 24-hour urine collection. RESULTS: Thirteen patients in the placebo group and 15 patients in the treatment group completed the 104 weeks of follow-up with a comparable dropout rate (placebo group: 35% vs treatment group: 25%). Compared with the placebo group, serum bicarbonate in treatment group was significantly increased at each time point, and oral bicarbonate resulted in a slower declining rate of residual CCr (F=5.113, p=0.031). Baseline residual CCr at enrollment also had a significant effect on residual CCr (F=168.779, P<0.001). Charlson Comorbidity Index which was adopted to calculate a comorbidity score had no significant effect on residual CCr loss (F=0.168, P=0.685). CONCLUSION: Oral bicarbonate may have a RRF preserving effect in CAPD patients, and a normal to high level of serum bicarbonate (>=24mmol/L) may be appropriate for RRF preservation. PMID- 29032380 TI - The Landscape of Circulating Tumor Cell Research in the Context of Epithelial Mesenchymal Transition. AB - The metastatic spread of cancer accounts for the vast majority of cancer-related deaths. It is mediated by tumor cells circulating in blood (called circulating tumor cells, CTCs), which escaped from their established niches. CTCs give a unique opportunity to look into the metastatic cascade and to study the molecular processes supporting the spread of tumor cells throughout the body. As current therapies are not sufficiently effective in treating metastatic disease, it is important to determine cellular and molecular features of cancer cells that "seed" new tumors in distant organs at early stages. In this review we focus on the role of the epithelial-mesenchymal transition program in providing a survival advantage to metastasizing tumor cells, especially CTCs, and put it in the context of clinical findings. PMID- 29032381 TI - Analysis of Correlation Between Vertebral Endplate Change and Lumbar Disc Degeneration. AB - BACKGROUND To evaluate the correlation between vertebral endplate change and the level of lumbar disc degeneration via magnetic resonance imaging (MRI). MATERIAL AND METHODS A total of 345 patients who were recruited from our hospital from May 2012 to May 2016 were evaluated for the presence of intervertebral disc degeneration or herniation. The degree of degeneration was assessed according to Pfirrmann grade. Vertebral endplate change was evaluated based on the endplate concave angle (ECA), and Modic change on sagittal MRI. The correlation between ECA and lumbar disc degeneration or Modic change and lumbar disc degeneration was analyzed. RESULTS The results showed that there was no statistically significant difference in comparison of the ECAs in adjacent L3-5 vertebra between males and females. With the aggravation in degenerative changes of L3-5 discs, the ECAs of adjacent L3 superior endplate, L4 inferior and superior endplates and L5 inferior endplate were gradually enlarged, indicating the positive correlation between the lumbar disc degeneration and ECAs. The rate of Modic change in females was higher than that in males without a statistically significant difference. Area of Modic change was positively correlated with the degree of lumbar disc degeneration. Additionally, we also identified the positive correlation between the rate of Modic change and the degree of lumbar disc degeneration. CONCLUSIONS Endplate angle and lumbar disc degeneration are positively correlated. The endplates and endplate signal changes can reflect the degree of disc degeneration and Modic changes can reflect the rate of clinical lumbar disc degeneration degree. PMID- 29032383 TI - Stigma in the addicted person. AB - Editorial of vol. 29-4. PMID- 29032382 TI - Angiotensin-Converting Enzyme Gene Deletion Polymorphism is Associated with Lymph Node Metastasis in Colorectal Cancer Patients in a Chinese Population. AB - BACKGROUND The purpose of this study was to assess the effect of angiotensin converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism on the risk of lymph node metastasis (LNM) in colorectal cancer (CRC) patients. MATERIAL AND METHODS We enrolled 146 CRC patients and 106 healthy controls in this study. ACE gene I/D polymorphism was genotyped by polymerase chain reaction (PCR). Hardy Weinberg equilibrium (HWE) was used to assess the goodness of fit of the genotypes. chi2 test was used to calculate the differences of genotype and allele distributions. Odds ratios (ORs) with corresponding 95% confidence intervals (95% CIs) were used to analyze the association between ACE I/D polymorphism and LNM in CRC patients. RESULTS Insertion/deletion (ID) and deletion/deletion (DD) genotypes were frequently observed in CRC patients, but only DD genotype and D allele were related to the susceptibility of CRC (P=0.038, OR=2.158, 95%CI=1.039 4.480; P=0.026, OR=1.501, 95%CI=1.048-2.150). DD genotype and D allele also increased the risk of LNM in CRC patients (P=0.028, OR=2.844, 95%CI=1.107-7.038; P=0.026, OR=1.692, 95%CI=1.063-2.693). CONCLUSIONS DD genotype and D allele of ACE gene I/D polymorphism might increase the risk of LNM in CRC patients. PMID- 29032384 TI - Proton pump inhibitor use and the risk of osteoporosis and fracture in stroke patients: a population-based cohort study. AB - : A considerable proportion of stroke survivors are prescribed with proton pump inhibitors (PPIs). Our study indicated that PPI use is associated with an increased risk of osteoporosis, hip fracture, and vertebral fracture in stroke patients. The risk tends to increase as the cumulative doses of PPIs increase. INTRODUCTION: A considerable proportion of stroke survivors are prescribed with proton pump inhibitors (PPIs). Our study investigated the association between PPI use and the risk of osteoporosis and fracture among stroke survivors. METHODS: A population-based propensity-matched retrospective cohort study was conducted using the National Health Insurance Research Database in Taiwan. Patients diagnosed with a new stroke between 2000 and 2012 were identified. After propensity score matching, 10,596 patients were enrolled, and 5298 patients were each assigned to the PPI user and non-user groups. Hazard ratios (HRs) were calculated for the risk of osteoporosis, hip fracture, and vertebral fractures according to PPI use or non-use. Sensitivity analyses were conducted to evaluate the dose effects of PPI. RESULTS: PPI use after stroke was associated with an increased risk of osteoporosis, hip fracture, or vertebral fracture, with an adjusted HR (aHR) of 1.28 (P < 0.001). The aHRs were also significant for each outcome: osteoporosis, 1.26 (P < 0.001); hip fracture, 1.18 (P = 0.048); vertebral fracture, 1.33 (P < 0.001). A pattern of dose effect was identified. For any event (osteoporosis/hip fracture/vertebral fracture), the aHR for PPI use of 1-90, 91-365, and > 365 cDDDs was 1.22 (P < 0.001), 1.27 (P < 0.001), and 1.66 (P < 0.001), respectively. For each outcome, the highest dose was associated with the highest risk, with aHR of 1.79 (P < 0.001), 1.41 (P = 0.039), and 1.82 (P < 0.001) for osteoporosis, hip fracture, and vertebral fracture, respectively. Age- and sex-stratified analyses revealed similar patterns. CONCLUSIONS: PPI use is associated with an increased risk of osteoporosis, hip fracture, and vertebral fracture in stroke patients. PMID- 29032385 TI - Exercise training response heterogeneity: physiological and molecular insights. AB - The overall beneficial effects of exercise are well studied, but why some people do not respond favourably to exercise is less understood. The National Institutes of Health Common Fund has recently launched the large-scale discovery project 'Molecular Transducers of Physical Activity in Humans' to examine the physiological and molecular (i.e. genetic, epigenetic, lipidomic, metabolomic, proteomic, etc.) responses to exercise training. A nationwide, multicentre clinical trial such as this one also provides a unique opportunity to robustly investigate the non-response to exercise in thousands of individuals that have undergone supervised aerobic- and resistance-based exercise training interventions. The term 'non-responder' is used here to address the lack of a response (to an exercise intervention) in an outcome specified a priori. Cardiorespiratory fitness ([Formula: see text]) as an exercise response variable was recently reviewed; thus, this review focuses on metabolic aspects of the non response to exercise training. Integrated -omics platforms are discussed as an approach to disentangle the complicated relationships between endogenous and exogenous factors that drive the lack of a response to exercise in some individuals. Harnessing the power of combined -omics platforms with deep clinical phenotyping of human study participants will advance the field of exercise metabolism and shift the paradigm, allowing exercise interventions to be targeted at those most likely to benefit and identifying novel approaches to treat those who do not. PMID- 29032386 TI - Biomonitoring of Urban Pollution Using Silicon-Accumulating Species, Phyllostachys aureosulcata 'Aureocaulis'. AB - We investigated metal accumulation in bamboo leaves during three seasons at three urban locations differing in pollution levels. The higher content of Cu, Pb, and Zn in the leaves was in correlation with the highest bioavailable content of these elements in the soil at the most polluted location. The content of leaf trace elements was higher in summer and autumn compared to spring. Scanning electron microscopy with energy dispersive X-ray spectroscopy showed that Si accumulation in bamboo leaves was the highest in epidermis and vascular tissue, and was co-localized with trace metals. Analysis of phytoliths showed co deposition of Al, C, and Si, implying the involvement of Si in metal detoxification. Compared to a common urban tree, linden, bamboo showed better capacity to maintain cellular redox homeostasis under deteriorated environmental conditions. The results suggest that bamboo can be efficiently used for biomonitoring of air and soil metal pollution and remediation in urban areas. PMID- 29032387 TI - An Assessment of Heavy Metal Contamination on the Surface Sediment of Seagrass Beds at the Khanh Hoa Coast, Vietnam. AB - Seagrasses beds are vulnerable ecosystems. Human-induced disturbances, including heavy metal pollution, cause losses in seagrass beds. Assessment of the heavy metal concentration in seagrass meadows is an urgent need in order to protect and sustain these ecosystems. The concentration of eight trace metals in the surface sediment was observed from six seagrass beds at Khanh Hoa's coast, Vietnam. Three pollution indices and statistical analysis were used to evaluate the levels of contamination with these elements. This report on heavy metals within seagrass beds in Vietnam shows that, based on enrichment factors, only one location revealed moderately severe enrichment of Cu. Geo-accumulation indices fall in the uncontaminated class at all locations whereas for the ecological risk factor, values of Cu at My Giang and of Pb at Thuy Trieu were in a moderate risk class. Hence, two of eight locations may be exposed to high Cu and Pb. PMID- 29032388 TI - Ethanol metabolism varies with hypoxia tolerance in ten cyprinid species. AB - During periods of severe hypoxia or anoxia, Carassius spp. are known for their ability to produce ethanol as their anaerobic end product, which diffuses into the environment thereby reducing the osmotic and acidotic load associated with "anaerobic" glycolysis. However, the relationship between alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activities, key ethanol metabolizing enzymes, and hypoxia tolerance among Carassius spp. and their closely related non ethanol-producing cyprinids remains unclear. To address this, we quantified the activity levels of key anaerobic enzymes in liver and muscle in species of cyprinids over 48 h of severe hypoxia exposure (0.7 kPa). As predicted, muscle ADH activity was highest in the two most hypoxia-tolerant species (Carassius spp.), with very low levels present in the other species examined. However, liver ADH activities showed an inverse relationship with hypoxia tolerance, with the most hypoxia-tolerant fish having the lowest ADH activity. There was no correlation between hypoxia tolerance and ALDH and LDH activities in muscle or liver. All species produced lactate, reaching their highest levels after 8 h, but returning to near-baseline levels by 48 h of sustained exposure to hypoxia, suggesting lactate oxidation or depressed ATP demand. Liver glycogen content was not affected by 48 h hypoxia exposure in the most hypoxia-tolerant species, whereas the least tolerant species consumed the majority of the liver glycogen stores, which is probably due to the greater relative hypoxia exposure experienced by these species. Our findings that liver ADH activities were inversely related to hypoxia tolerance suggests that in all but Carassius spp., the ethanol metabolizing pathways in cyprinids is largely similar to that observed in other vertebrates and plays a role in the detoxification of ethanol. Furthermore, conservation of glycogen stores may be the result of metabolic depressing pathways in the more tolerant species, regardless of the ability to produce ethanol, or adaptations that improve oxygen uptake to reduce metabolic demands due to hypoxia. PMID- 29032391 TI - Representation of environmental shape in the hippocampus of domestic chicks (Gallus gallus). AB - The hippocampus plays an important role in spatial encoding and memory across various vertebrate species. In rodents, hippocampal neurons are particularly sensitive to a change in environmental geometry. Given the similarities in function between the mammalian and avian hippocampi, we aimed to measure whether enclosures varying in geometric shape (square and rectangle) can differentially activate hippocampal cells in the domestic chick (Gallus gallus domesticus). Chicks exposed to both a square and a rectangular arena exhibited a significantly higher neural activation (as measured by c-Fos expression) than those exposed twice to just the square or just the rectangle (both of which were significantly higher in activation than a one-environment control group). For the first time in an avian species, we show that exposure to two enclosures of different geometric shape activates the hippocampus to a greater degree, suggesting a possible effect of spatial remapping. PMID- 29032389 TI - Complementary and Integrative Medicine in Hematologic Malignancies: Questions and Challenges. AB - Hematologic malignancies represent 9.7% of all cancers, making them the fourth most common type of cancer in the United States. The aggressive and complex treatments administered in hematologic malignancies result in a high burden of psychological needs. Complementary and integrative medicine (CIM) is becoming one of the options that patients use to address their distress during and after cancer treatments. It is not clear whether appropriate CIM can relieve distress in patients affected by these malignancies. This review covers the potential benefits of CIM as relates to nutrition, nutritional supplements, exercise, circadian rhythm, methods for reducing distress during bone marrow aspiration, massage therapy, and acupuncture, in treating patients with hematological malignancies. This review may provide a framework to enhance patient-doctor dialogue regarding CIM use in hematologic malignancies. PMID- 29032390 TI - Psychosocial work environment and mental health-related long-term sickness absence among nurses. AB - PURPOSE: We investigated which job demands and job resources were predictive of mental health-related long-term sickness absence (LTSA) in nurses. METHODS: The data of 2059 nurses were obtained from the Norwegian survey of Shift work, Sleep and Health. Job demands (psychological demands, role conflict, and harassment at the workplace) and job resources (social support at work, role clarity, and fair leadership) were measured at baseline and linked to mental health-related LTSA during 2-year follow-up. Cox regression models estimated hazard ratios (HR) and related 95% confidence intervals (CI). The c-statistic was used to investigate the discriminative ability of the Cox regression models. RESULTS: A total of 1533 (75%) nurses were included in the analyses; 103 (7%) of them had mental health related LTSA during 2-year follow-up. Harassment (HR = 1.07; 95% CI 1.01-1.17) and social support (HR = 0.92; 95% CI 0.87-0.98) were associated with mental health-related LTSA. However, the Cox regression model did not discriminate between nurses with and without mental health-related LTSA (c = 0.59; 95% CI 0.53 0.65). CONCLUSIONS: Harassment was positively and social support at the workplace was negatively related to mental health-related LTSA, but both failed to discriminate between nurses with and without mental health-related LTSA during 2 year follow-up. PMID- 29032392 TI - Exercise and gastrointestinal symptoms: running-induced changes in intestinal permeability and markers of gastrointestinal function in asymptomatic and symptomatic runners. AB - PURPOSE: Athletes frequently experience gastrointestinal (GI) symptoms during training and competition. Although the prevalence of exercise-induced GI symptoms is high, the mechanisms leading to GI distress during exercise are not fully understood. The aim of this study was to identify running-induced changes in intestinal permeability and markers of GI function and investigate their association with gastrointestinal symptoms. METHODS: We recruited 17 active runners who we allocated as either asymptomatic or symptomatic based on their history of experiencing GI symptoms during running. The participants took part in a running test where they were asked to run for 90 min at 80% of their best 10 km race speed. Intestinal permeability was measured at baseline and after the running test. Levels of serum intestinal fatty acid-binding protein (I-FABP), zonulin, bacterial lipopolysaccharide (LPS), and fecal calprotectin were also measured at baseline and after the running test. RESULTS: Running induced a significant increase in intestinal permeability and serum I-FABP concentration but there were no differences between asymptomatic and symptomatic runners. Serum LPS activity did not change from baseline following the running test but the symptomatic group exhibited higher LPS activity at baseline compared to the asymptomatic runners. CONCLUSIONS: Running for 90 min at a challenging pace causes small intestinal damage and increases intestinal permeability. However, these alterations in GI function do not appear to correlate with the development of GI symptoms during running. PMID- 29032393 TI - Acute effects of repeated cycling sprints in hypoxia induced by voluntary hypoventilation. AB - PURPOSE: This study aimed to investigate the acute responses to repeated-sprint exercise (RSE) in hypoxia induced by voluntary hypoventilation at low lung volume (VHL). METHODS: Nine well-trained subjects performed two sets of eight 6-s sprints on a cycle ergometer followed by 24 s of inactive recovery. RSE was randomly carried out either with normal breathing (RSN) or with VHL (RSH-VHL). Peak (PPO) and mean power output (MPO) of each sprint were measured. Arterial oxygen saturation, heart rate (HR), gas exchange and muscle concentrations of oxy ([O2Hb]) and deoxyhaemoglobin/myoglobin ([HHb]) were continuously recorded throughout exercise. Blood lactate concentration ([La]) was measured at the end of the first (S1) and second set (S2). RESULTS: There was no difference in PPO and MPO between conditions in all sprints. Arterial oxygen saturation (87.7 +/- 3.6 vs 96.9 +/- 1.8% at the last sprint) and HR were lower in RSH-VHL than in RSN during most part of exercise. The changes in [O2Hb] and [HHb] were greater in RSH VHL at S2. Oxygen uptake was significantly higher in RSH-VHL than in RSN during the recovery periods following sprints at S2 (3.02 +/- 0.4 vs 2.67 +/- 0.5 L min 1 on average) whereas [La] was lower in RSH-VHL at the end of exercise (10.3 +/- 2.9 vs 13.8 +/- 3.5 mmol.L-1; p < 0.01). CONCLUSIONS: This study shows that performing RSE with VHL led to larger arterial and muscle deoxygenation than with normal breathing while maintaining similar power output. This kind of exercise may be worth using for performing repeated sprint training in hypoxia. PMID- 29032395 TI - ptxD gene in combination with phosphite serves as a highly effective selection system to generate transgenic cotton (Gossypium hirsutum L.). AB - KEY MESSAGE: This report demonstrates the usefulness of ptxD/phosphite as a selection system that not only provides a highly efficient and simple means to generate transgenic cotton plants, but also helps address many of the concerns related to the use of antibiotic and herbicide resistance genes in the production of transgenic crops. Two of the most popular dominant selectable marker systems for plant transformation are based on either antibiotic or herbicide resistance genes. Due to concerns regarding their safety and in order to stack multiple traits in a single plant, there is a need for alternative selectable marker genes. The ptxD gene, derived from Pseudomonas stutzeri WM88, that confers to cells the ability to convert phosphite (Phi) into orthophosphate (Pi) offers an alternative selectable marker gene as demonstrated for tobacco and maize. Here, we show that the ptxD gene in combination with a protocol based on selection medium containing Phi, as the sole source of phosphorus (P), can serve as an effective and efficient system to select for transformed cells and generate transgenic cotton plants. Fluorescence microscopy examination of the cultures under selection and molecular analyses on the regenerated plants demonstrate the efficacy of the system in recovering cotton transformants following Agrobacterium mediated transformation. Under the ptxD/Phi selection, an average of 3.43 transgenic events per 100 infected explants were recovered as opposed to only 0.41% recovery when bar/phosphinothricin (PPT) selection was used. The event recovery rates for nptII/kanamycin and hpt/hygromycin systems were 2.88 and 2.47%, respectively. Molecular analysis on regenerated events showed a selection efficiency of ~ 97% under the ptxD/Phi system. Thus, ptxD/Phi has proven to be a very efficient, positive selection system for the generation of transgenic cotton plants with equal or higher transformation efficiencies compared to the commonly used, negative selection systems. PMID- 29032397 TI - Correction to: Extent and Location of the Excitatory and Inhibitory Cortical Hand Representation Maps: A Navigated Transcranial Magnetic Stimulation Study. AB - The original version of this article unfortunately contained an error. An error in the transformation between coordinate systems used to derive part of the results has been noticed. PMID- 29032394 TI - Clinical performance of 68Ga-PSMA-11 PET/MRI for the detection of recurrent prostate cancer following radical prostatectomy. AB - PURPOSE: Sensitive visualization of recurrent prostate cancer foci is a challenge in patients with early biochemical recurrence (EBR). The recently established 68Ga-PSMA-11 PET/CT has significantly improved the detection rate with published values of up to 55% for patients with a serum PSA concentration between 0.2-0.5 ng/mL. The increased soft tissue contrast in the pelvis using simultaneous 68Ga PSMA-11 PET/MRI might further improve the detection rate in patients with EBR and low PSA values over PET/CT. METHODS: We retrospectively analyzed a cohort of 56 consecutive patients who underwent a 68Ga-PSMA-11 PET/MRI for biochemical recurrence in our institution between April and December 2016 with three readers. Median PSA level was 0.99 ng/mL (interquartile range: 3.1 ng/mL). Detection of PSMA-positive lesions within the prostate fossa, local and distant lymph nodes, bones, or visceral organs was recorded. Agreement among observers was evaluated with Fleiss's kappa (k). RESULTS: Overall, in 44 of 56 patients (78.6%) PSMA positive lesions were detected. In four of nine patients (44.4%) with a PSA < 0.2 ng/mL, suspicious lesions were detected (two pelvic and one paraaortic lymph nodes, and two bone metastases). In eight of 11 patients (72.7%) with a PSA between 0.2 and < 0.5 ng/mL, suspicious lesions were detected (two local recurrences, six lymph nodes, and one bone metastasis). Five out of 20 patients with a PSA < 0.5 ng/mL had extrapelvic disease. In 12 of 15 patients (80.0%) with a PSA between 0.5 and < 2.0 ng/mL, suspicious lesions were detected (four local recurrences, nine lymph nodes, and four bone metastases). In 20 of 21 patients (95.2%) with a PSA >2.0 ng/mL, suspicious lesions were detected. The overall interreader agreement for cancer detection was excellent (kappa = 0.796, CI 0.645 0.947). CONCLUSIONS: Our data show that 68Ga-PSMA-11 PET/MRI has a high detection rate for recurrent prostate cancer even at very low PSA levels <0.5 ng/mL. Furthermore, even at those low levels extrapelvic disease can be localized in 25% of the cases and local recurrence alone is seen only in 10%. PMID- 29032396 TI - Assessing Adherence to Antihypertensive Therapy in Primary Health Care in Namibia: Findings and Implications. AB - INTRODUCTION: Namibia has the highest burden and incidence of hypertension in sub Sahara Africa. Though non-adherence to antihypertensive therapy is an important cardiovascular risk factor, little is known about potential ways to improve adherence in Namibia following universal access. The objective of this study is to validate the Hill-Bone compliance scale and determine the level and predictors of adherence to antihypertensive treatment in primary health care settings in sub urban townships of Windhoek, Namibia. METHODS: Reliability was determined by Cronbach's alpha. Principal component analysis (PCA) was used to assess construct validity. RESULTS: The PCA was consistent with the three constructs for 12 items, explaining 24.1, 16.7 and 10.8% of the variance. Cronbach's alpha was 0.695. None of the 120 patients had perfect adherence to antihypertensive therapy, and less than half had acceptable levels of adherence (>= 80%). The mean adherence level was 76.7 +/- 8.1%. Three quarters of patients ever missed their scheduled clinic appointment. Having a family support system (OR = 5.4, 95% CI 1.687-27.6, p = 0.045) and attendance of follow-up visits (OR = 3.1, 95% CI 1.1-8.7, p = 0.03) were significant predictors of adherence. Having HIV/AIDs did not lower adherence. CONCLUSIONS: The modified Namibian version of the Hill-Bone scale is reliable and valid for assessing adherence to antihypertensives in Namibia. There is sub-optimal adherence to antihypertensive therapy among primary health cares in Namibia. This needs standardized systems to strengthen adherence monitoring as well as investigation of other factors including transport to take full advantage of universal access. PMID- 29032398 TI - Analysis of miR-96 and miR-133a Expression in Gastrointestinal Neuroendocrine Neoplasms. AB - Grading of gastrointestinal neuroendocrine neoplasms (GI-NENs) relies mainly on mitotic activity and Ki-67 proliferation index. It is often difficult to predict metastatic potential of these neoplasms. Recent studies have shown that GI-NENs express a wide spectrum of microRNAs. We examined two microRNAs (miR-96 and miR 133a) that were recently identified in GI-NENs to determine if they could assist in evaluating the biological behavior of these neoplasms. A tissue microarray (TMA) was constructed with 51 primary GI-NENs, mainly from the small intestine and metastatic tumors from the same cases, including liver metastases (N = 20) and lymph node metastases (N = 33). The cases were immunohistochemically stained for chromogranin A, synaptophysin, and Ki-67. In situ hybridization (ISH) was done with probes from Exiqon (Woburn, MA). Quantitative RT-PCR (qRT-PCR) was also performed on all the cases (N = 105). ISH analysis showed that miR-96 expression was significantly higher in the liver metastatic neoplasms compared to the primary NENs (p < 0.05); however, it was not significant for miR-133a expression levels. qRT-PCR showed that miR-96 levels were increased during progression from the primary tumors to metastases in the liver. qRT-PCR showed a decrease in miR 133a in the liver metastases compared to the primary tumors (p < 0.05). Appendiceal carcinoids without metastases (n = 3) had low levels of miR-96 and high levels of miR-133a by qPCR. The study suggests that analysis of these two microRNAs by qRT-PCR may be useful in detecting more aggressive GI-NENs and that ISH analysis may also assist in the evaluation of patients with GI-NENs. PMID- 29032399 TI - Evidence of Extracellular Vesicles Biogenesis and Release in Mouse Embryonic Stem Cells. AB - Extracellular vesicles (EVs) released by mouse embryonic stem cells (mESCs) are considered a source of bioactive molecules that modulate their microenvironment by acting on intercellular communication. Either intracellular endosomal machinery or their derived EVs have been considered a relevant system of signal circuits processing. Herein, we show that these features are found in mESCs. Ultrastructural analysis revealed structures and organelles of the endosomal system such as coated pits and endocytosis-related vesicles, prominent rough endoplasmic reticulum and Golgi apparatus, and multivesicular bodies (MVBs) containing either few or many intraluminal vesicles (ILVs) that could be released as exosomes to extracellular milieu. Besides, budding vesicles shed from the plasma membrane to the extracellular space is suggestive of microvesicle biogenesis in mESCs. mESCs and mouse blastocyst express specific markers of the Endosomal Sorting Complex Required for Transport (ESCRT) system. Ultrastructural analysis and Nanoparticle Tracking Analysis (NTA) of isolated EVs revealed a heterogeneous population of exosomes and microvesicles released by mESCs. These vesicles contain Wnt10b and the Notch ligand Delta-like 4 (DLL4) and also the co chaperone stress inducible protein 1 (STI1) and its partner Hsp90. Wnt10b and Dll4 colocalize with EVs biogenesis markers in mESCs. Overall, the present study supports the function of the mESCs endocytic network and their EVs as players in stem cell biology. PMID- 29032400 TI - Fine mapping of QTL qCTB10-2 that confers cold tolerance at the booting stage in rice. AB - KEY MESSAGE: The QTL qCTB10 - 2 controlling cold tolerance at the booting stage in rice was delimited to a 132.5 kb region containing 17 candidate genes and 4 genes were cold-inducible. Low temperature at the booting stage is a major abiotic stress-limiting rice production. Although some QTL for cold tolerance in rice have been reported, fine mapping of those QTL effective at the booting stage is few. Here, the near-isogenic line ZL31-2, selected from a BC7F2 population derived from a cross between cold-tolerant variety Kunmingxiaobaigu (KMXBG) and the cold-sensitive variety Towada, was used to map a QTL on chromosome 10 for cold tolerance at the booting stage. Using BC7F3 and BC7F4 populations, we firstly confirmed qCTB10-2 and gained confidence that it could be fine mapped. QTL qCTB10-2 explained 13.9 and 15.9% of the phenotypic variances in those two generations, respectively. Using homozygous recombinants screened from larger BC7F4 and BC7F5 populations, qCTB10-2 was delimited to a 132.5 kb region between markers RM25121 and MM0568. 17 putative predicted genes were located in the region and only 5 were predicted to encode expressed proteins. Expression patterns of these five genes demonstrated that, except for constant expression of LOC_Os10g11820, LOC_Os10g11730, LOC_Os10g11770, and LOC_Os10g11810 were highly induced by cold stress in ZL31-2 compared to Towada, while LOC_Os10g11750 showed little difference. Our results provide a basis for identifying the genes underlying qCTB10-2 and indicate that markers linked to the qCTB10-2 locus can be used to improve the cold tolerance of rice at the booting stage by marker assisted selection. PMID- 29032401 TI - Fine mapping of the genic male-sterile ms 1 gene in Capsicum annuum L. AB - KEY MESSAGE: The genomic region cosegregating with the genic male-sterile ms 1 gene of Capsicum annuum L. was delimited to a region of 869.9 kb on chromosome 5 through fine mapping analysis. A strong candidate gene, CA05g06780, a homolog of the Arabidopsis MALE STERILITY 1 gene that controls pollen development, was identified in this region. Genic male sterility caused by the ms 1 gene has been used for the economically efficient production of massive hybrid seeds in paprika (Capsicum annuum L.), a colored bell-type sweet pepper. Previously, a CAPS marker, PmsM1-CAPS, located about 2-3 cM from the ms 1 locus, was reported. In this study, we constructed a fine map near the ms 1 locus using high-resolution melting (HRM) markers in an F2 population consisting of 1118 individual plants, which segregated into 867 male-fertile and 251 male-sterile plants. A total of 12 HRM markers linked to the ms 1 locus were developed from 53 primer sets targeting intraspecific SNPs derived by comparing genome-wide sequences obtained by next generation resequencing analysis. Using this approach, we narrowed down the region cosegregating with the ms 1 gene to 869.9 kb of sequence. Gene prediction analysis revealed 11 open reading frames in this region. A strong candidate gene, CA05g06780, was identified; this gene is a homolog of the Arabidopsis MALE STERILITY 1 (MS1) gene, which encodes a PHD-type transcription factor that regulates pollen and tapetum development. Sequence comparison analysis suggested that the CA05g06780 gene is the strongest candidate for the ms 1 gene of paprika. To summarize, we developed a cosegregated marker, 32187928-HRM, for marker assisted selection and identified a strong candidate for the ms 1 gene. PMID- 29032402 TI - Interaction between chlorhexidine and fluoride in a mouthrinse solution-a 4-day and 6-week randomized clinical pilot study. AB - OBJECTIVE: The aim of the present investigation was to study if there is a reduced clinical effect and fluoride retention of a mouthrinse solution containing both chlorhexidine (CHX) and sodium fluoride (NaF). MATERIAL AND METHODS: Two clinical trials were designed as double-blind, randomized, cross over studies. In study I, 16 healthy subjects were asked to rinse twice daily for 1 min during 4 days of no tooth brushing with four solutions: (1) 0.12% CHX + 0.2% NaF, (2) 0.2% NaF, (3) 0.12% CHX, and (4) placebo. In study II, another 16 healthy subjects rinsed with the same four solutions twice daily after tooth brushing during a 6-week period. Plaque formation, gingivitis, and microbiological samples from plaque and saliva, as well as fluoride retention, were analyzed. RESULTS: Both studies showed that both CHX + NaF and CHX mouthrinses had the same clinical effect with regards to plaque formation and microflora in plaque and saliva. Similarly, fluoride retention was not altered by the CHX + NaF mouthrinse compared to the NaF solution. CONCLUSION: The combination of CHX and NaF in a mouthrinse showed the same clinical effect as the CHX solution. The retention of fluoride in the oral cavity was not affected by the combination of NaF and CHX. CLINICAL RELEVANCE: A mouthrinse solution containing a mixture of CHX and NaF may be an interesting product for risk patients for caries and periodontal disease. However, this should be verified in further long-term clinical studies. PMID- 29032403 TI - Mate tea (Ilex paraguariensis) improves bone formation in the alveolar socket healing after tooth extraction in rats. AB - OBJECTIVES: The objective of this study was to investigate the effects of mate tea (MT) [Ilex paraguariensis] on alveolar socket healing after tooth extraction. MATERIALS AND METHODS: Sixteen male rats were divided into MT and control groups. MT was administered by intragastric gavage at a dose of 20 mg/kg/day for 28 days before and 28 days after right maxillary incisor extraction. The control group received an equal volume of water. Histopathological and histometric analysis of the neoformed bone area and osteocyte density were performed, as well as immunohistochemical analysis of osteocalcin (OCN), receptor activator of nuclear factor kappa-B ligand (RANKL), osteoprotegerin (OPG), tartrate-resistant acid phosphatase (TRAP), and manganese superoxide dismutase (MnSOD) in the alveolar socket. Calcium, phosphorus, alkaline phosphatase (ALP) activity, total antioxidant capacity (TAC), and malondialdehyde (MDA) were measured in plasma, whereas TRAP activity was determined in serum. RESULTS: Histometry evidenced an increase in bone area (P < 0.0001) and osteocyte density (P < 0.0001). MT increased immunolabeling of MnSOD (P < 0.001), OCN (P < 0.0001), RANKL (P < 0.001), OPG (P < 0.0001), and TRAP (P < 0.001). Calcium and phosphorus concentrations did not differ between the groups. In addition, MT enhanced ALP (P < 0.05) and TRAP (P < 0.0001) activities. MT increased the TAC (P < 0.001), whereas it reduced MDA concentrations (P < 0.0001). CONCLUSIONS: MT increases bone area and osteocyte density in the alveolar socket healing on day 28 after tooth extraction. CLINICAL RELEVANCE: Regular MT ingestion improves the antioxidant defenses and bone formation, which is beneficial for alveolar socket bone healing after tooth extraction. PMID- 29032404 TI - Dietary Supplementation with Methylseleninic Acid Inhibits Mammary Tumorigenesis and Metastasis in Male MMTV-PyMT Mice. AB - Male breast cancer, which makes up approximately 1% of all breast cancers, is an aggressive disease with poor prognosis. We investigated the effects of dietary supplementation with selenium in the form of methylseleninic acid [(MSeA) 2.5 mg selenium/kg] on mammary tumorigenesis in male MMTV-PyMT mice. The mammary tumor latency was 14.6 weeks for the MSeA-fed group and 13.8 weeks for the controls fed the AIN93G diet (p < 0.05). Dietary supplementation with MSeA, versus the control, resulted in a 72% reduction in tumor progression, a 46% reduction in both final volume and weight of mammary tumors, and a 70% reduction in the number of lung metastases. Mammary tumorigenesis in MMTV-PyMT mice, versus non-tumor bearing wild-type mice, resulted in significant increases in concentrations of plasminogen activator inhibitor-1, urokinase plasminogen activator, monocyte chemotactic protein-1, and vascular endothelial growth factor, but not aromatase and estrogen, in the plasma. Concentrations of all variables mentioned above in both plasma and mammary tumors were lower in MSeA-fed mice. Mammary tumorigenesis reduced plasma levels of adiponectin compared to non-tumor-bearing controls. Adiponectin concentrations in mammary tumors, but not in plasma, were higher in MSeA-fed mice than in controls. In summary, dietary supplementation with selenium in the form of MSeA inhibits mammary tumorigenesis and its pulmonary metastasis in male MMTV-PyMT mice. PMID- 29032405 TI - Agaricus blazei Murill Polysaccharides Protect Against Cadmium-Induced Oxidative Stress and Inflammatory Damage in Chicken Spleens. AB - Agaricus blazei Murill polysaccharide (ABP) has exhibited antioxidant and immunoregulatory activity. The aim of this study was to investigate the effect of ABP on cadmium (Cd)-induced antioxidant functions and inflammatory damage in chicken spleens. In this study, groups of 7-day-old chickens were fed with normal saline (0.2 mL single/day), CdCl2 (140 mg/kg/day), ABP (30 mg/mL, 0.2 mL single/day), and Cd + ABP (140 mg/kg/day + 0.2 mL ABP). Spleens were separated on the 20th, 40th, and 60th day for each group. The Cd contents, expression of melanoma-associated differentiation gene 5 (MDA5) and its downstream signaling molecules (interferon promoter-stimulating factor 1 (IPS-1), transcription factors interferon regulatory factor 3 (IRF3), and nuclear factor kappa-light chain-enhancer of activated B cells (NF-kappaB)), the content of cytokines (interleukin 1beta (IL-1beta), interleukin 6 (IL-6), tumor necrosis factor-alpha (TNF-alpha) and beta interferon (IFN-beta)), protein levels of heat shock proteins (HSPs), levels of malondialdehyde (MDA), activities of glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD), and histopathological changes of spleens were detected on the 20th, 40th, and 60th day. The results showed that ABP significantly reduced the accumulation of Cd in the chicken spleens and reduced the expression of MDA5, IPS-1, IRF-3, and NF-kappaB; their downstream inflammatory cytokines, IL-1beta, IL-6, TNF-alpha, and IFN-beta; and the protein levels of HSPs (HSP60, HSP70, and HSP90) in spleens. The activities of antioxidant enzymes (SOD and GSH-Px) significantly increased, and the level of MDA decreased in the ABP + Cd group. The results indicate that ABP has a protective effect on Cd-induced damage in chicken spleens. PMID- 29032406 TI - Lactobacillus gasseri attenuates allergic airway inflammation through PPARgamma activation in dendritic cells. AB - : Lactobacilli prevent the early development of allergic diseases in children and experimental asthma in mice. However, the detailed mechanism underlying this action remains unknown. We aimed to explore the activation pathway in the host by Lactobacillus and identify its immunomodulation mechanism in allergic asthma. Continuous administration of 107 cfu, but not 109 cfu, of L. gasseri for 4 weeks prevented Dermatophagoides pteronyssinus (Der p)-induced airway hypersensitivity and inflammation in a mouse model of allergic asthma. DNA microarray analysis of the mesenteric and lung draining lymph nodes revealed a significant decrease in inflammatory chemokines and increase in gene expression in carbohydrate and lipid metabolism, particularly of PPARgamma, in 107 cfu L. gasseri-administered mice compared with untreated mice. Compared with WT mice, Der p-sensitized PPARgammaL/+ mice showed increased airway hyperresponsiveness to methacholine, inflammatory cell infiltration, and inflammatory cytokine secretion in bronchoalveolar fluid. Moreover, the protective effects of L. gasseri were lost in Der p-induced airway inflammation in PPARgammaL/+ mice, and L. gasseri-induced PPARgamma activation in BMDCs inhibited the development of allergic airway inflammation in both PPARgamma WT and PPARgammaL/+ mice. L. gasseri may act via a novel PPARgamma activation pathway in DCs to alleviate allergen-induced airway inflammation in allergic asthma. KEY MESSAGES: L. gasseri prevents mite allergen (Der p)-induced airway inflammation. Prevention of airway inflammation occurs via activation of PPARgamma in dendritic cells. L. gasseri administration does not reverse Der p-induced airway inflammation in PPARgamma(+/-) mice. L. gasseri induced PPARgamma activation inhibits development of airway inflammation in WT and PPARgamma(+/-) mice. PMID- 29032408 TI - The natural history of depressive symptoms in patients with incident Parkinson's disease: a prospective cohort study. AB - Depression is common in patients with Parkinson disease and causes suffering and increased caregiver burden. A better understanding of depressive symptoms in Parkinson disease, their progression, and risk factors may, therefore, benefit management of these patients. The present study included 187 drug-naive patients with incident PD and 166 controls from the population-based Norwegian ParkWest project. Depressive symptoms were examined with the Montgomery and Aasberg Depression Rating Scale (MADRS) at time of diagnosis and inclusion in the study and after 1, 3, 5, and 7 years of follow-up. Associations between MADRS scores and risk factors were assessed using generalized estimating equations (GEE). The mean MADRS score from all 823 examinations during the study period was 4.2 in patients and 1.3 in 732 examinations among controls. Among controls, the occurrence of depressive symptoms was also lower and rather stable during follow up, while in patients, we observed a decrease from time of diagnosis and until the 1-year visit, followed by a steady increase in these symptoms over time. Factors associated with higher MADRS score in the multivariable model were female sex, being dependent, higher pain score, higher Unified PD Rating Scale (UPDRS) motor score, and lower Mini-Mental State Examination (MMSE) score. The results from this study underscore the importance and frequency of depressive symptoms in patients with early PD. Furthermore, risk factors that may be considered PD nonspecific are associated with depressive symptoms as are factors that reflect the progression of PD. PMID- 29032407 TI - Advances in understanding nociception and neuropathic pain. AB - Pain results from the activation of a subset of sensory neurones termed nociceptors and has evolved as a "detect and protect" mechanism. However, lesion or disease in the sensory system can result in neuropathic pain, which serves no protective function. Understanding how the sensory nervous system works and what changes occur in neuropathic pain are vital in identifying new therapeutic targets and developing novel analgesics. In recent years, technologies such as optogenetics and RNA-sequencing have been developed, which alongside the more traditional use of animal neuropathic pain models and insights from genetic variations in humans have enabled significant advances to be made in the mechanistic understanding of neuropathic pain. PMID- 29032409 TI - Agrobacterium-mediated floral dip transformation of the model polyploid species Arabidopsis kamchatica. AB - Polyploidization has played an important role in the speciation and diversification of plant species. However, genetic analyses of polyploids are challenging because the vast majority of the model species are diploids. The allotetraploid Arabidopsis kamchatica, which originated through the hybridization of the diploid Arabidopsis halleri and Arabidopsis lyrata, is an emerging model system for studying various aspects of polyploidy. However, a transgenic method that allows the insertion of a gene of interest into A. kamchatica is still lacking. In this study, we investigated the early development of pistils in A. kamchatica and confirmed the formation of open pistils in young flower buds (stages 8-9), which is important for allowing Agrobacterium to access female reproductive tissues. We established a simple Agrobacterium-mediated floral dip transformation method to transform a gene of interest into A. kamchatica by dipping A. kamchatica inflorescences bearing many young flower buds into a 5% sucrose solution containing 0.05% Silwet L-77 and Agrobacterium harboring the gene of interest. We showed that a screenable marker comprising fluorescence accumulating seed technology with green fluorescent protein was useful for screening the transgenic seeds of two accessions of A. kamchatica subsp. kamchatica and an accession of A. kamchatica subsp. kawasakiana. PMID- 29032410 TI - Relationship Between Circulating Fatty Acids and Fatty Acid Ethanolamide Levels After a Single 2-h Dietary Fat Feeding in Male Sprague-Dawley Rats : Elevated levels of oleoylethanolamide, palmitoylethanolamide, linoleoylethanolamide, arachidonoylethanolamide and docosahexanoylethanolamide after a single 2 h dietary fat feeding in male Sprague Dawley rats. AB - Previous studies show that long term variations in dietary fat consumption impact circulating fatty acid ethanolamide (FAE) concentrations, however, few studies have investigated short term effects of dietary fat feeding on FAE levels. The trial's objective was to explore the effect of acute feeding of varying amounts of dietary n-9 and n-3 fatty acids on plasma and organ levels of FAE. Sixty-four rats were assigned to four groups fed meals containing 40% of energy as either safflower oil (control), canola oil (CO), or DHA rich oil (DRO), each consumed as a bolus within a 2-h window. Plasma and tissue FAE levels were measured at 3, 6, 12 and 24 h following the bolus. FAE profiles over time exhibited patterns that were specific both to FAE and to dietary fat type provided. At 3 h, plasma and liver OEA levels were higher (p < 0.05) in the 95% CO:5% DRO compared with other groups. At 12 h, plasma PEA levels were lower (p < 0.05) in the 50% CO:50% DRO group compared to the 95% CO group. Plasma DEA levels showed an increase (p < 0.05) only after 24 h of feeding. All four dietary groups manifested increased DEA levels in a dose-dependent manner. Data demonstrate that a single meal feeding of diets with different ratios of fat types impacts tissue levels of FAE within a short time frame, which could further influence the physiological roles of FAE on appetite regulation and energy expenditure. PMID- 29032412 TI - Prognostication and Initiation of Therapy in Polycythemia Vera: Do We Have it Right? AB - ?. PMID- 29032411 TI - HIV Prevalence and Risk Behaviors in Male to Female (MTF) Transgender Persons in Tijuana, Mexico. AB - Compared to HIV research on men who have sex with men, less is known about the risks and vulnerabilities for HIV among Male to Female (MTF) transgender persons, particularly in different geographic regions like Mexico. In Tijuana, Mexico, a border city experiencing a dynamic HIV epidemic, no precedent data exists on the MTF transgender population. Our aims were to estimate HIV prevalence and examine the behaviors and characteristics of the population. We conducted a cross sectional study of 100 MTF transgender persons recruited through time location sampling in 2012. Participants underwent interviewer-administered (paper and pen) surveys and rapid tests for HIV. Descriptive univariate analyses were conducted on various factors, including sociodemographics, substance use, accessing social services (requested vs. received), stigma, and sex behaviors. A total of 22% tested positive for HIV, a prevalence higher than other key populations at risk for HIV in Tijuana. PMID- 29032413 TI - Choriocapillaris layer imaging with swept-source optical coherence tomography angiography in lamellar and full-thickness macular hole. AB - PURPOSE: To present characteristics of choriocapillaris layer imaging with swept source optical coherence tomography angiography (SS-OCTA) in eyes with macular hole (MH). METHODS: Patients with MH were included. Vascular density of choriocapillaris (VDC) and central flow void areas were obtained using SS-OCTA. Data were compared with age- and gender-matched normal controls. RESULTS: Fifty one patients with MH and 51 controls were included. Among the 51 patients with MH, 19 had lamellar MH (LMH) and 32 had full-thickness MH (FTMH). While VDC in LMH (79.26 +/- 4.06%) was not significantly different from that seen in fellow eyes (79.88 +/- 4.28%, P = 0.729) and normal controls (80.53 +/- 4.21%, P = 1.000), VDC in surgically closed FTMH (74.60 +/- 7.37%) was similar to that of fellow eyes (75.45 +/- 7.39%, P = 0.400) but lower than that of controls (78.37 +/- 7.13%, P = 0.011). On univariate analysis of 32 patients with unilateral sealed FTMH, VDC was not correlated with basal hole area (P = 0.797) or preoperative area of disrupted ellipsoid zone (P = 0.863). Central flow void was detected in 32 eyes. Mean central flow void area was 0.82 +/- 0.84 mm2, which correlated with preoperative area of disrupted ellipsoid zone (P = 0.001). CONCLUSIONS: Choriocapillaris layer imaging using SS-OCTA showed that choriocapillaris in both eyes of patients with unilateral FTMH had different characteristics from eyes with LMH or normal controls. These results suggest that variation in choriocapillaris layer flow is involved in the pathogenesis of MH. PMID- 29032414 TI - Influence of LASEK on Schiotz, Goldmann and dynamic contour Tonometry. AB - PURPOSE: Our purpose was to assess the effect of LASEK surgery on ocular rigidity and to compare its effect on intraocular pressure (IOP) readings with Goldmann applanation tonometry (GAT), Schiotz indentation tonometry (ST) and dynamic contour tonometry (DCT). METHODS: Prospective, observational, single-masked cohort study. One eye per patient from 31 consecutive subjects who underwent LASEK refractive surgery to correct myopia, as well as from 108 non-operated myopic patients, were included. IOP was measured using GAT, DCT, and ST. The coefficient of ocular rigidity (Ko) was obtained from the regression line of the three readings obtained with each weight of the ST. Linear multiple regression analysis was performed with dummy variables to assess the effect of age, central corneal thickness (CCT), and previous refractive surgery on IOP values. RESULTS: Age, CCT, and LASEK surgery explained 23% of the IOP readings with GAT, 11% with DCT, and had no significant influence on ST readings. The IOP readings obtained with GAT and DCT, but not with ST, were significantly different between LASEK and control groups. Significant differences in Ko were observed between LASEK (0.014 mmHg/MUL +/-0.007) and control groups (0.021 mmHg/MUL +/-0.013) (P = 0.001). Ko values were not related with age or CCT, in either LASEK or control groups. CONCLUSIONS: ST readings seems to be less affected by LASEK surgery than the other tonometers evaluated. There is a difference in the ocular rigidity between the control and the LASEK eyes that it is not correlated with CCT, so it seems that ST can detect changes in the biomechanical behavior of the LASEK operated corneas. PMID- 29032415 TI - From aggregation to interpretation: how assessors judge complex data in a competency-based portfolio. AB - While portfolios are increasingly used to assess competence, the validity of such portfolio-based assessments has hitherto remained unconfirmed. The purpose of the present research is therefore to further our understanding of how assessors form judgments when interpreting the complex data included in a competency-based portfolio. Eighteen assessors appraised one of three competency-based mock portfolios while thinking aloud, before taking part in semi-structured interviews. A thematic analysis of the think-aloud protocols and interviews revealed that assessors reached judgments through a 3-phase cyclical cognitive process of acquiring, organizing, and integrating evidence. Upon conclusion of the first cycle, assessors reviewed the remaining portfolio evidence to look for confirming or disconfirming evidence. Assessors were inclined to stick to their initial judgments even when confronted with seemingly disconfirming evidence. Although assessors reached similar final (pass-fail) judgments of students' professional competence, they differed in their information-processing approaches and the reasoning behind their judgments. Differences sprung from assessors' divergent assessment beliefs, performance theories, and inferences about the student. Assessment beliefs refer to assessors' opinions about what kind of evidence gives the most valuable and trustworthy information about the student's competence, whereas assessors' performance theories concern their conceptualizations of what constitutes professional competence and competent performance. Even when using the same pieces of information, assessors furthermore differed with respect to inferences about the student as a person as well as a (future) professional. Our findings support the notion that assessors' reasoning in judgment and decision-making varies and is guided by their mental models of performance assessment, potentially impacting feedback and the credibility of decisions. Our findings also lend further credence to the assertion that portfolios should be judged by multiple assessors who should, moreover, thoroughly substantiate their judgments. Finally, it is suggested that portfolios be designed in such a way that they facilitate the selection of and navigation through the portfolio evidence. PMID- 29032416 TI - Non-attendance of vulnerable populations within epilepsy outpatient services in Ireland. AB - BACKGROUND: Outpatient non-attendance is a prevalent issue that contributes to significant wasted clinical resources and can be influenced by a number of complex factors. AIMS: The aim of this study is to characterize "did not attend" (DNA) rates in three identified subpopulations of epilepsy patients to determine if current care provision models suffice. METHODS: In this study, we identified all patients residing in social housing, in residential care, and those incarcerated who have been offered appointments by our service. We calculated the total number of appointments issued to each group over their entire interaction with our service and their subsequent non-attendance rate as a group. Additionally, we calculated the baseline DNA rate for our epilepsy clinic as a whole for comparison. RESULTS: We found that the baseline DNA rate for the clinic as a whole was 18.9%. Those in social housing, in residential care, and incarcerated had significantly higher DNA rates of 24, 20.2, and 54.3%, respectively. CONCLUSIONS: This study provided evidence that in certain groups of patients, clinicians may need to explore other care delivery models due to high DNA rates. PMID- 29032417 TI - Clinical evaluation for sublingual immunotherapy with Dermatophagoides farinae drops in adult patients with allergic asthma. AB - PURPOSE: The efficacy and safety of sublingual immunotherapy (SLIT) in house dust mite-induced allergic asthma (AA) have yet to be firmly established, especially in adult patients. Our objective is to evaluate the efficacy of SLIT with Dermatophagoides farinae drops in adult patients with AA. METHODS: One hundred and thirty-four adult patient data with house dust mite (HDM)-induced AA who had been treated for 2 years were collected. These patient data that we collected were divided into the SLIT group (n = 85) and control group (n = 49). All patients were treated with low to moderate dose of inhaled glucocorticoid and long-acting beta2 agonists. Patients in the SLIT group were further treated with D. farinae drops. Clinical scores including the total asthma symptom score (TASS), total asthma medicine score (TAMS), asthma control test (ACT), and peak flow percentage (PEF%) were assessed before treatment and at yearly visits. The presence of adverse events (AEs) were recorded once a month. RESULTS: Before treatment, the PEF% in the SLIT group was significantly lower than that in the control group (p < 0.05). After 2 years, both treatments were effective in the clinical scores when compared with baseline values (all p < 0.001). Meanwhile, the SLIT group showed significantly lower TASS and TAMS (all p < 0.001) and higher ACT (p < 0.001) and PEF% (p < 0.05) when compared with the control group. No severe systemic AEs were reported. CONCLUSIONS: SLIT with D. farinae drops plus pharmacotherapy is more effective than routine drug treatment in adult patients with AA. PMID- 29032418 TI - Transoral robotic surgery for squamous cell carcinomas of the posterior pharyngeal wall. AB - Posterior pharyngeal wall squamous cell carcinomas (SCCs) are rare and have an associated poor prognosis. Progress in transoral resection techniques, in particular, transoral robotic surgery (TORS), have renewed the role of surgery in their treatment. This article presents the oncological and functional results obtained by the French Group of Head and Neck Robotic Surgery for TORS for posterior pharyngeal wall SCC-curative surgery. This retrospective, multicentre study presents data collected between September 2009 and November 2013 for patients treated with TORS for posterior pharyngeal wall SCCs. Analysis of patient characteristics, tumour and treatment details were completed. Kaplan Meier analysis was used to calculate overall survival rates and recurrence-free survival rates. Student's t test and Chi2 test were also calculated. 23 patients were included (mean age of 62 years). 12 patients had a prior HNSCC. Ten patients had pT1 cancers. The overall two-year survival rate was 59%, but 89% for pT1 compared to 28% for pT2-T3 (p = 0.01). It was noted that TORS was simple to perform, but generated significant post-operative dysphagia. Two cases of spondylodiscitis were reported as specific post-operative complications of TORS. In conclusion, TORS is a treatment solution for selected posterior pharyngeal wall SCCs. It provides a possible alternative to medical treatment for early pT1 lesions and is often the only remaining curative solution in patients previously treated with radiotherapy. In cases of bulky resection, or when there is a past medical history of radiotherapy, a tissue reconstruction by forearm free-flap may be indicated. PMID- 29032419 TI - Objective assessment of the reliability of the House-Brackmann and Fisch grading of synkinesis. AB - The objective of this paper is to assess synkinesis associated with post paretic voluntary facial movements using the objective OSCAR method and to investigate the correlation between synkinesis and paresis to compare the objective results with the subjective scaling systems of Fisch and House-Brackmann. The development of an objective assessment of synkinesis with the OSCAR method is focused on the clinically most relevant eye-mouth and forehead-mouth synkinetic movements. Thirteen patients with unilateral facial paralysis and synkinesis of the University Hospital Zurich were examined. Two types of clinically relevant facial synkinesis were found: a maximal synkinesis and a relative synkinesis. Neither Synkinesis-Index correlates well with the underlying degree of global facial palsy. The relative Synkinesis-Index (rSI) correlates well with the subjective evaluation of synkinesis according to the Fisch Grading, but shows a poor correlation with the traditional House-Brackmann grading. Therefore a single scaling index combining the degree of facial nerve palsy and synkinesis is inappropriate and we propose the use of two independent scaling systems for the evaluation of facial palsy: one for the voluntary facial movements, the other for the involuntary synkinetic movements. The adequate evaluation of the post paretic face should include the results of both scaling systems. PMID- 29032420 TI - Cochlear implantation with the nucleus slim modiolar electrode (CI532): a preliminary experience. AB - To combine the benefits of perimodiolar stimulation with minimal insertion trauma, a thin, pre-curved electrode (CI532) was recently developed by Cochlear Ltd. (Sidney). This array is held straight prior to insertion by an external polymer reloadable sheath that is removed after full electrode insertion. Sixty seven patients suffering from severe-to-profound sensorineural hearing loss (mean age 42.2 years; mean duration of the hearing loss 19.6 years; mean PTA thresholds at 250-2000 Hz 92.4 dB HL) were implanted with the CI532. Mean duration of surgery was 58.7 min. In 61 patients, a round window (RW) approach was used. In the remaining six cases, a cochleostomy was done because of RW ossification. Impedances and NRT for each electrode are reported. NRT ratio average value was 0.86 +/- 0.12 predicting correct scala tympani electrode placement. Post operative PTA threshold in the implanted ear was 102.9 dB HL. Finally, speech recognition level in quiet at 65 dB HL was 44.6%, after a short follow-up (mean 5.2 months). Our preliminary experience with the new CI532 shows good surgical, electrophysiological, and audiological outcomes. In particular, our results are promising regarding the possibility to achieve minimal insertion trauma and good residual hearing preservation with the use of a deep inserted close modiolar electrode. PMID- 29032421 TI - Computer-based radiological longitudinal evaluation of meningiomas following stereotactic radiosurgery. AB - PURPOSE: Stereotactic radiosurgery (SRS) is a common treatment for intracranial meningiomas. SRS is planned on a pre-therapy gadolinium-enhanced T1-weighted MRI scan (Gd-T1w MRI) in which the meningioma contours have been delineated. Post-SRS therapy serial Gd-T1w MRI scans are then acquired for longitudinal treatment evaluation. Accurate tumor volume change quantification is required for treatment efficacy evaluation and for treatment continuation. METHOD: We present a new algorithm for the automatic segmentation and volumetric assessment of meningioma in post-therapy Gd-T1w MRI scans. The inputs are the pre- and post-therapy Gd-T1w MRI scans and the meningioma delineation in the pre-therapy scan. The output is the meningioma delineations and volumes in the post-therapy scan. The algorithm uses the pre-therapy scan and its meningioma delineation to initialize an extended Chan-Vese active contour method and as a strong patient-specific intensity and shape prior for the post-therapy scan meningioma segmentation. The algorithm is automatic, obviates the need for independent tumor localization and segmentation initialization, and incorporates the same tumor delineation criteria in both the pre- and post-therapy scans. RESULTS: Our experimental results on retrospective pre- and post-therapy scans with a total of 32 meningiomas with volume ranges 0.4-26.5 cm[Formula: see text] yield a Dice coefficient of [Formula: see text]% with respect to ground-truth delineations in post-therapy scans created by two clinicians. These results indicate a high correspondence to the ground-truth delineations. CONCLUSION: Our algorithm yields more reliable and accurate tumor volume change measurements than other stand-alone segmentation methods. It may be a useful tool for quantitative meningioma prognosis evaluation after SRS. PMID- 29032422 TI - The deep layer of the tractus iliotibialis and its relevance when using the direct anterior approach in total hip arthroplasty: a cadaver study. AB - INTRODUCTION: Surgical approaches through smaller incisions reveal less of the underlying anatomy, and therefore, detailed knowledge of the local anatomy and its variations is important in minimally invasive surgery. The aim of this study was to determine the location, extension, and histomorphology of the deep layer of the iliotibial band during minimally invasive hip surgery using the direct anterior approach (DAA). MATERIALS AND METHODS: The morphology of the iliotibial tract was determined in this cadaver study on 40 hips with reference to the anterior superior iliac spine and the tibia. The deep layer of the tractus iliotibialis was exposed up to the hip-joint capsule and length and width measurements taken. Sections of the profound iliotibial tract were removed from the hips and the thickness of the sections was determined microscopically after staining. RESULTS: The superficial tractus iliotibialis had a length of 50.1 (SD 3.8) cm, while tensor fasciae latae total length was 18 (SD 2) cm [unattached 15 (SD 2.5) cm]. Length and width of the deep layer of the tractus iliotibialis were 10.4 (SD 1.3) * 3.3 (SD 0.6) cm. The deep iliotibial band always extended from the distal part of the tensor fascia latae (TFL) muscle to the lateral part of the hip capsule (mean maximum thickness 584 MUm). Tractus iliotibialis deep layer morphology did not correlate to other measurements taken (body length, thigh length, and TFL length). CONCLUSIONS: The length of the deep layer is dependent on the TFL, since the profound part of the iliotibial band reaches from the TFL to the hip-joint capsule. The deep layer covers the hip-joint capsule, rectus, and lateral vastus muscles in the DAA interval. To access the precapsular fat pad and the hip-joint capsule, the deep layer has to be split in all approaches that use the direct anterior interval. PMID- 29032423 TI - The pathogenesis shared between abdominal aortic aneurysms and intracranial aneurysms: a microarray analysis. AB - Abdominal aortic aneurysms (AAAs) and intracranial saccular aneurysms (IAs) are the most common types of aneurysms. This study was to investigate the common pathogenesis shared between these two kinds of aneurysms. We collected 12 IAs samples and 12 control arteries from the Beijing Tiantan Hospital and performed microarray analysis. In addition, we utilized the microarray datasets of IAs and AAAs from the Gene Expression Omnibus (GEO), in combination with our microarray results, to generate messenger RNA expression profiles for both AAAs and IAs in our study. Functional exploration and protein-protein interaction (PPI) analysis were performed. A total of 727 common genes were differentially expressed (404 was upregulated; 323 was downregulated) for both AAAs and IAs. The GO and pathway analyses showed that the common dysregulated genes were mainly enriched in vascular smooth muscle contraction, muscle contraction, immune response, defense response, cell activation, IL-6 signaling and chemokine signaling pathways, etc. The further protein-protein analysis identified 35 hub nodes, including TNF, IL6, MAPK13, and CCL5. These hub node genes were enriched in inflammatory response, positive regulation of IL-6 production, chemokine signaling pathway, and T/B cell receptor signaling pathway. Our study will gain new insight into the molecular mechanisms for the pathogenesis of both types of aneurysms and provide new therapeutic targets for the patients harboring AAAs and IAs. PMID- 29032424 TI - Not just gene expression: 3D implications of chromatin modifications during sexual plant reproduction. AB - DNA methylation and histone modifications are epigenetic changes on a DNA molecule that alter the three-dimensional (3D) structure locally as well as globally, impacting chromatin looping and packaging on a larger scale. Epigenetic marks thus inform higher-order chromosome organization and placement in the nucleus. Conventional epigenetic marks are joined by chromatin modifiers like cohesins, condensins and membrane-anchoring complexes to support particularly 3D chromosome organization. The most popular consequences of epigenetic modifications are gene expression changes, but chromatin modifications have implications beyond this, particularly in actively dividing cells and during sexual reproduction. In this opinion paper, we will focus on epigenetic mechanisms and chromatin modifications during meiosis as part of plant sexual reproduction where 3D management of chromosomes and re-organization of chromatin are defining features and prime tasks in reproductive cells, not limited to modulating gene expression. Meiotic chromosome organization, pairing and synapsis of homologous chromosomes as well as distribution of meiotic double-strand breaks and resulting crossovers are presumably highly influenced by epigenetic mechanisms. Special mobile small RNAs have been described in anthers, where these so-called phasiRNAs seem to direct DNA methylation in meiotic cells. Intriguingly, many of the mentioned developmental processes make use of epigenetic changes and small RNAs in a manner other than gene expression changes. Widening our approaches and opening our mind to thinking three-dimensionally regarding epigenetics in plant development holds high promise for new discoveries and could give us a boost for further knowledge. PMID- 29032425 TI - Heterologous expression of wheat TaRUB1 gene enhances disease resistance in Arabidopsis thaliana. AB - KEY MESSAGE: Expression of TaRUB1 gene in Arabidopsis thaliana elevates the level of disease-related genes in response to pathogen invasion through the accumulation of callose, necrotic cells, and the outbreak of ROS. Ubiquitin (Ub) and ubiquitin-like proteins are highly conserved in sequence and can covalently bind and modify many intracellular proteins which can be recognized and degraded by 26S proteasome. Post-translational modification of proteins has become a hot research spot today. In the previous study, a cDNA of related-to-ubiquitin protein belonged to ubiquitin-like proteins, whose spatial structure comprised Ub and NEDD8, was obtained from wheat SN6306 by suppression-subtractive hybridization and was named TaRUB1. TaRUB1 is induced by wheat powdery mildew and significantly upregulated in resistant wheat SN6306. In this study, heterologous expression of TaRUB1 in A. thaliana was used to study the function of this gene in response to pathogen Pseudomonas syringae pv. Tomato DC3000 (Pst DC3000). Transgenic A. thaliana showed relatively fewer disease symptoms, accompanied by common inhibition of living body parasitic defense responses, accumulation of more callose and reactive oxygen species (ROS), and concentrated cell death, simultaneously antioxidant enzyme activities of superoxide dismutase, peroxidase, catalase, and ascorbate peroxidase were higher than those in wild-type (WT) plant after infection with Pst DC3000. Meanwhile, hypersensitive cell death, which was possibly ROS burst, was also observed in transgenic A. thaliana. By quantitative reverse transcription-polymerase chain reaction analysis, some marker genes for hypersensitive response showed significantly higher transcriptional expression level in transgenic A. thaliana, which activates system-acquired resistance, than that of WT plants. Heterologous expression of TaRUB1 can significantly enhance resistance to Pst DC3000 in A. thaliana, suggesting that TaRUB1 is related to plant disease resistance. PMID- 29032426 TI - Transgenerational stress-adaption: an opportunity for ecological epigenetics. AB - In the recent years, there has been considerable interest to investigate the adaptive transgenerational plasticity of plants and how a "stress memory" can be transmitted to the following generation. Although, increasing evidence suggests that transgenerational adaptive responses have widespread ecological relevance, the underlying epigenetic processes have rarely been elucidated. On the other hand, model plant species have been deeply investigated in their genome-wide methylation landscape without connecting this to the ecological reality of the plant. What we need is the combination of an ecological understanding which plant species would benefit from transgenerational epigenetic stress-adaption in their natural habitat, combined with a deeper molecular analysis of non-model organisms. Only such interdisciplinary linkage in an ecological epigenetic study could unravel the full potential that epigenetics could play for the transgenerational stress-adaption of plants. PMID- 29032428 TI - Usability Operations on Touch Mobile Devices for Users with Autism. AB - The Autistic Spectrum Disorder is a cognitive disorder that affects the cognitive and motor skills; due that, users cannot perform digital and fine motor tasks. It is necessary to create software applications that adapt to the abilities of these users. In recent years has been an increase in the research of the use of technology to support autistic users to develop their communication skills and to improve learning. However, the applications' usability for disable users is not assessed objectively as the existing models do not consider interaction operators for disable users. This article focuses on identifying the operations that can easily be performed by autistic users following the metrics of KML-GOMS, TLM and FLM. In addition, users of typical development were included in order to do a comparison between both types of users. The experiment was carried out using four applications designed for autistic users. Participants were subjects divided in two groups: level 1 and level 2 autistic users, and a group of users of typical development. During the experimentation, users performed a use case for each application; the time needed to perform each task was measured. Results show that the easiest operations for autistic users are K (Keystroke), D (Drag), Initial Act (I) and Tapping (T). PMID- 29032427 TI - Soft mechanical stimulation induces a defense response against Botrytis cinerea in strawberry. AB - KEY MESSAGE: Genes associated with plant mechanical stimulation were found in strawberry genome. A soft mechanical stimulation (SMS) induces molecular and biochemical changes in strawberry plants, conferring protection against Botrytis cinerea. Plants have the capacity to induce a defense response after exposure to abiotic stresses acquiring resistance towards pathogens. It was reported that when leaves of Arabidopsis thaliana were wounded or treated with a soft mechanical stimulation (SMS), they could resist much better the attack of the fungal pathogen Botrytis cinerea, and this effect was accompanied by an oxidative burst and the expression of touch-inducible genes (TCH). However, no further work was carried out to better characterize the induced defense response. In this paper, we report that TCH genes were identified for first time in the genomes of the strawberry species Fragaria ananassa (e.g. FaTCH2, FaTCH3, FaTCH4 and FaCML39) and Fragaria vesca (e.g. FvTCH2, FvTCH3, FvTCH4 and FvCML39). Phylogenetic studies revealed that F. ananassa TCH genes exhibited high similarity with the orthologous of F. vesca and lower with A. thaliana ones. We also present evidence that after SMS treatment on strawberry leaves, plants activate a rapid oxidative burst, callose deposition, and the up-regulation of TCH genes as well as plant defense genes such as FaPR1, FaCHI2-2, FaCAT, FaACS1 and FaOGBG-5. The latter represents the first report showing that TCH- and defense-induced genes participate in SMS-induced resistance in plants, bringing a rational explanation why plants exposed to a SMS treatment acquired an enhance resistance toward B. cinerea. PMID- 29032430 TI - The Impacts of Soil Fertility and Salinity on Soil Nitrogen Dynamics Mediated by the Soil Microbial Community Beneath the Halophytic Shrub Tamarisk. AB - Nitrogen (N) is one of the most common limiting nutrients for primary production in terrestrial ecosystems. Soil microbes transform organic N into inorganic N, which is available to plants, but soil microbe activity in drylands is sometimes critically suppressed by environmental factors, such as low soil substrate availability or high salinity. Tamarisk (Tamarix spp.) is a halophytic shrub species that is widely distributed in the drylands of China; it produces litter enriched in nutrients and salts that are thought to increase soil fertility and salinity under its crown. To elucidate the effects of tamarisks on the soil microbial community, and thus N dynamics, by creating "islands of fertility" and "islands of salinity," we collected soil samples from under tamarisk crowns and adjacent barren areas at three habitats in the summer and fall. We analyzed soil physicochemical properties, inorganic N dynamics, and prokaryotic community abundance and composition. In soils sampled beneath tamarisks, the N mineralization rate was significantly higher, and the prokaryotic community structure was significantly different, from soils sampled in barren areas, irrespective of site and season. Tamarisks provided suitable nutrient conditions for one of the important decomposers in the area, Verrucomicrobia, by creating "islands of fertility," but provided unsuitable salinity conditions for other important decomposers, Flavobacteria, Gammaproteobacteria, and Deltaproteobacteria, by mitigating salt accumulation. However, the quantity of these decomposers tended to be higher beneath tamarisks, because they were relatively unaffected by the small salinity gradient created by the tamarisks, which may explain the higher N mineralization rate beneath tamarisks. PMID- 29032429 TI - DNA damage and oxidative stress induced by seizures are decreased by anticonvulsant and neuroprotective effects of lobeline, a candidate to treat alcoholism. AB - The alkaloid lobeline (Lob) has been studied due to its potential use in treatment of drug abuse. This study evaluates the possible anticonvulsant and neuroprotective activities of Lob to obtain new information on its properties that could confirm it as a candidate in the treatment of alcohol addiction. The anticonvulsant effect of Lob was evaluated using a pilocarpine-induced seizure model. In addition, possible neuroprotective effects were investigated measuring DNA damage using the comet assay, assessing free radical levels by dichlorofluorescein diacetate (DCF) oxidation, and measuring the antioxidant potential using the alpha, alpha-diphenyl-beta-picrylhydrazyl (DPPH) scavenging assay, besides measuring superoxide dismutase (SOD) and catalase (CAT) enzyme activities in brain tissues. Lobeline increased the latency to the first seizure and decreased the percentage of seizures in a similar way as diazepam, used as control. DNA damage induced by Pil and hydrogen peroxide were decreased in hippocampus and cerebral cortex from mice treated with Lob. The levels of free radicals and CAT activity increased in cortex and hippocampus, respectively, in mice treated with Pil. Lobeline decreased CAT in hippocampus, leading to similar values as in the saline negative control. In conclusion, Lob has anticonvulsant and neuroprotective actions that may be mediated by antioxidant-like mechanisms, indicating its potential as candidate drug in alcoholism therapy. PMID- 29032431 TI - Identification of coronary artery anatomy on dual-source cardiac computed tomography before arterial switch operation in newborns and young infants: comparison with transthoracic echocardiography. AB - BACKGROUND: Considering inherent limitations of transthoracic echocardiography, the diagnostic accuracy of cardiac CT in identifying coronary artery anatomy before arterial switch operation needs to be investigated with recently improved coronary artery visibility using electrocardiogram (ECG)-synchronized dual-source CT. OBJECTIVE: To compare diagnostic accuracy between cardiac CT using a dual source scanner and transthoracic echocardiography in identifying coronary artery anatomy before arterial switch operation in newborns and young infants. MATERIALS AND METHODS: The study included 101 infants (median age 4 days, range 0 days to 10 months; M:F=78:23) who underwent ECG-synchronized cardiac dual-source CT and transthoracic echocardiography before arterial switch operation between July 2011 and December 2016. We evaluated and classified coronary artery anatomy on cardiac CT and transthoracic echocardiography. With the surgical findings as the reference standard, we compared the diagnostic accuracy for identifying coronary artery anatomy between cardiac CT and transthoracic echocardiography. RESULTS: The most common coronary artery pattern was the usual pattern (left coronary artery from sinus 1 and right coronary artery from sinus 2; 64.4%, 65/101), followed by a single coronary artery from sinus 2 and a conal branch from sinus 1 (7.9%, 8/101), the inverted pattern (5.9%, 6/101), the right coronary artery and left anterior descending artery from sinus 1 and the left circumflex artery from sinus 2 (5.9%, 6/101), and others. In 96 infants with surgically proven coronary artery anatomy, the diagnostic accuracy of cardiac CT was significantly higher than that of transthoracic echocardiography (91.7%, 88/96 vs. 54.2%, 52/96; P<0.0001). CONCLUSION: Diagnostic accuracy of cardiac CT is significantly higher than that of echocardiography in identifying coronary artery anatomy before arterial switch operation in newborns and young infants. PMID- 29032432 TI - Relationship between rice yield and climate variables in southwest Nigeria using multiple linear regression and support vector machine analysis. AB - This study examines the variations of climate variables and rice yield and quantifies the relationships among them using multiple linear regression, principal component analysis, and support vector machine (SVM) analysis in southwest Nigeria. The climate and yield data used was for a period of 36 years between 1980 and 2015. Similar to the observed decrease (P < 0.001) in rice yield, pan evaporation, solar radiation, and wind speed declined significantly. Eight principal components exhibited an eigenvalue > 1 and explained 83.1% of the total variance of predictor variables. The SVM regression function using the scores of the first principal component explained about 75% of the variance in rice yield data and linear regression about 64%. SVM regression between annual solar radiation values and yield explained 67% of the variance. Only the first component of the principal component analysis (PCA) exhibited a clear long-term trend and sometimes short-term variance similar to that of rice yield. Short-term fluctuations of the scores of the PC1 are closely coupled to those of rice yield during the 1986-1993 and the 2006-2013 periods thereby revealing the inter-annual sensitivity of rice production to climate variability. Solar radiation stands out as the climate variable of highest influence on rice yield, and the influence was especially strong during monsoon and post-monsoon periods, which correspond to the vegetative, booting, flowering, and grain filling stages in the study area. The outcome is expected to provide more in-depth regional-specific climate-rice linkage for screening of better cultivars that can positively respond to future climate fluctuations as well as providing information that may help optimized planting dates for improved radiation use efficiency in the study area. PMID- 29032433 TI - Diffuse mesangial sclerosis in a PDSS2 mutation-induced coenzyme Q10 deficiency. AB - BACKGROUND: A 7-month-old male infant was admitted because he was suffering from nephrotic syndrome, along with encephalomyopathy, hypertrophic cardiomyopathy, clinically suspected deafness and retinitis pigmentosa, and an elevated serum lactate level. METHODS: Coenzyme Q10 supplementation was started because of the clinical suspicion of primary CoQ10 deficiency. Despite intensive efforts, he passed away 4 weeks after admission. RESULTS: The results of genetic tests, available postmortem, explored two hitherto undescribed mutations in the PDSS2 gene. Both were located within the polyprenyl synthetase domain. Clinical exome sequencing revealed a heterozygous missense mutation in exon 3, and our in-house joint-analysis algorithm detected a heterozygous large 2923-bp deletion that affected the 5 prime end of exon 8. Other causative defects in the CoQ10 and infantile nephrosis-related genes examined were not found. A postmortem histological, immunohistochemical, and electron microscopic evaluation of the glomeruli revealed collapsing-sclerosing lesions consistent with diffuse mesangial sclerosis. The extrarenal alterations included hypertrophic cardiomyopathy and diffuse alveolar damage. A histological evaluation of the central nervous system and skeletal muscles did not demonstrate any obvious abnormality. CONCLUSIONS: Until now, the clinical features and the mutational status of 6 patients with a PDSS2 gene defect have been reported in the English literature. Here, we describe for the first time detailed kidney morphology features in a patient with nephrotic syndrome carrying mutations in the PDSS2 gene. PMID- 29032434 TI - The influence of mitomycin C concentration on the outcome of trabeculectomy in uveitic glaucoma. AB - PURPOSE: To evaluate the influence of mitomycin C (MMC) concentration on the outcome of trabeculectomy in uveitic glaucoma. METHODS: Retrospective comparative study included 50 patients who underwent MMC-enhanced trabeculectomy for uncontrolled uveitic glaucoma. Patients were divided into two groups based on the concentration of MMC used during trabeculectomy (high [0.04%] or low [0.02%]). The main outcome measures were: the intraocular pressure (IOP), the number of antiglaucoma medications, the need for further glaucoma surgeries, and trabeculectomy success. RESULTS: There were no differences in the IOP nor antiglaucoma medications. The success rates were 76.0 and 68.0%, while the failure rates were 24.0 and 32.0% in the 0.02 and 0.04% MMC groups, respectively. CONCLUSION: Trabeculectomy augmented with low (0.02%) MMC concentration seems to have comparable outcomes in uveitic glaucoma compared with high (0.04%) concentration. PMID- 29032435 TI - Environmental factors associated with ocular morbidity among children in three ecological regions of Nepal: a phase II Nepal Pediatric Ocular Diseases Study. AB - PURPOSE: The Nepal Pediatric Ocular Diseases Study (NPODS) was a 3-year (January 2012-December 2014) longitudinal study carried out in three ecological regions of Nepal to understand the magnitude of the problems of childhood ocular morbidity and blindness. Based on the results of this study, a second phase of NPODS was undertaken to understand the risk factors associated with childhood ocular diseases. This paper analyzes environmental factors. METHOD: This was a nested case-control study with study population selected from the same cohort of children included in the baseline survey of NPODS. The study areas were the same (three districts from three ecological regions: Sindhupalchowk from mountain, Makawanpur from hills, and Sarlahi from terai). After sample size calculation, cases and controls were taken in 1:4 ratio and matched for age, sex, and location. RESULTS: A total of 830 children (166 cases, 664 controls) were selected with 5.4 % of cases and 2.7 % of control participants nonresponders. Among environmental factors, children who stayed with their mother during cooking, who had with fewer windows in their kitchen, and who used dusty roads to school had significant association with ocular morbidities. Similarly, children with cable TV in their house had higher chance of having refractive error. CONCLUSIONS: Many of the environmental factors associated with ocular diseases in children are modifiable. Improving the household environment is likely to effectively decrease the burden of eye diseases. The association of refractive error with increased indoor and near activities is an important finding, reported herein for the first time in Nepalese children. PMID- 29032436 TI - Does capitated managed care affect budget predictability? Evidence from Medicaid programs. AB - As the second largest item in the budget of every US state, Medicaid budget stability and financial transparency have significance for every state. This study is the first to test whether managed care enrollment reduces the variance of Medicaid spending, in contrast to the focus of the existing literature on spending levels. This variance bears directly on whether budget constrained states whether budget constrained states benefit from managed care in the form of stabilized spending, leading to improved budget predictability. Capitated payments stabilize spending at the margin, but the effects may be unobservable in aggregate due to variation in enrollment, which is directly measured in the analysis, or selection bias, which is unobserved. Although the majority of Medicaid enrollees are in managed care, the study shows that managed care use has been concentrated among the enrollees with the most stable spending, resulting in only small gains to budget predictability. This finding is robust to the exclusion of the claims expenditures that exhibit the most variance. PMID- 29032437 TI - Scale Heterogeneity in Healthcare Discrete Choice Experiments: A Primer. AB - Discrete choice experiments (DCEs) are used to quantify the preferences of specified sample populations for different aspects of a good or service and are increasingly used to value interventions and services related to healthcare. Systematic reviews of healthcare DCEs have focussed on the trends over time of specific design issues and changes in the approach to analysis, with a more recent move towards consideration of a specific type of variation in preferences within the sample population, called taste heterogeneity, noting rises in the popularity of mixed logit and latent class models. Another type of variation, called scale heterogeneity, which relates to differences in the randomness of choice behaviour, may also account for some of the observed 'differences' in preference weights. The issue of scale heterogeneity becomes particularly important when comparing preferences across subgroups of the sample population as apparent differences in preferences could be due to taste and/or choice consistency. This primer aims to define and describe the relevance of scale heterogeneity in a healthcare context, and illustrate key points, with a simulated data set provided to readers in the Online appendix. PMID- 29032438 TI - Improvements in Quality-Adjusted Life Years and Cost-Utility After Pharmacotherapy for Premenstrual Dysphoric Disorder: A Retrospective Study. AB - BACKGROUND AND OBJECTIVE: To investigate the cost-effectiveness of pharmacotherapy for premenstrual dysphoric disorder (PMDD), a relatively new classification of depressive disorder that is characterized by recurrent depression during the premenstrual phase of the menstrual cycle. METHODS: We performed a retrospective analysis of data from 49 previously untreated PMDD patients who visited our psychiatric department between October 2013 and February 2016 and received pharmacotherapy for 3 or 6 subsequent menstrual cycles. Quality adjusted life years (QALYs) were estimated across individual menstrual cycles using mean EuroQoL-5D values. Direct costs per patient were estimated in order to conduct a preliminary cost-effectiveness analysis. RESULTS: Pharmacotherapy produced a 0.190-point increase in mean EuroQoL-5D score per menstrual cycle after 6 menstrual cycles and an improvement of approximately 0.2 QALYs. Based on direct costs of 156,000 yen per patient, the cost-effectiveness of pharmacotherapy was calculated to be 823,000 yen per QALY. A cost-effectiveness acceptability curve analysis indicated that escitalopram tended to be superior to sertraline when willingness to pay per QALY was over 4,000,000 yen, whereas sertraline was superior when willingness to pay was below 2,000,000 yen. CONCLUSIONS: Pharmacotherapy is cost effective for the treatment of PMDD. Moreover, escitalopram is a more cost-effective option than sertraline when willingness to pay is sufficiently high. PMID- 29032439 TI - The Application of Chironomid Pupal Exuvial Technique (CPET) for Ecological Analysis in a Neotropical Large River System. AB - This field ecological study, based on the chironomid pupal exuvial technique (CPET), is new for the Parana River and proposes an efficient tool to be used in future ecological approaches and biomonitoring. Drifting of pupal exuviae in a river-floodplain system of the Middle Parana River floodplain was represented by 34 Chironomidae taxa, being the characteristic association obtained from the CPET: Lopescladius, Onconeura, Paralauterborniella, Polypedilum, and Harnischia complex. Diversity, richness, dominance, total density, and density of dominant taxa were different between the longitudinal and lateral dimensions but not between hydrologic phases, with a greater diversity and richness in the main channel of the river and higher density and dominance in floodplain habitats. The species turnover is the dominant process in structuring studied assemblages in spatial and temporal analysis, increasing in the floodplain habitats and in low water phase. The results obtained showed that drifting exuviae in the longitudinal axis were coming from different assemblages and environments of a wider area (regional), while exuviae recorded in the connections of the floodplain environments in the lateral dimension could reflect the local assemblages. We demonstrated the ecological value of CPET studies to interpret the attributes of Chironomidae assemblage in river-floodplain systems of large rivers in an integrated way. PMID- 29032441 TI - Characteristics of PAHs in farmland soil and rainfall runoff in Tianjin, China. AB - Rainfall runoff can remove certain amounts of pollutants from contaminated farmland soil and result in a decline in water quality. However, the leaching behaviors of polycyclic aromatic hydrocarbons (PAHs) with rainfall have been rarely reported due to wide variations in the soil compositions, rainfall conditions, and sources of soil PAHs in complex farmland ecosystems. In this paper, the levels, spatial distributions, and composition profiles of PAHs in 30 farmland soil samples and 49 rainfall-runoff samples from the Tianjin region in 2012 were studied to investigate their leaching behaviors caused by rainfall runoff. The contents of the Sigma16PAHs ranged from 58.53 to 3137.90 MUg/kg in the soil and 146.58 to 3636.59 MUg/L in the runoff. In total, most of the soil sampling sites (23 of 30) were contaminated, and biomass and petroleum combustion were proposed as the main sources of the soil PAHs. Both the spatial distributions of the soil and the runoff PAHs show a decreasing trend moving away from the downtown, which suggested that the leaching behaviors of PAHs in a larger region during rainfall may be mainly affected by the compounds themselves. In addition, 4- and 5-ring PAHs are the dominant components in farmland soil and 3- and 4-ring PAHs dominate the runoff. Comparisons of the PAH pairs and enrichment ratios showed that acenaphthylene, acenaphthene, benzo[a]anthracene, chrysene, and fluoranthene were more easily transferred into water systems from soil than benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[ghi]perylene, and indeno[123-cd]pyrene, which indicated that PAHs with low molecular weight are preferentially dissolved due to their higher solubility compared to those with high molecular weight. PMID- 29032440 TI - Vasculitis and vasculitis-like manifestations in monogenic autoinflammatory syndromes. AB - Monogenic autoinflammatory syndromes are a rare group of disorders characterized by periodic episodes of systemic inflammation of endogenous origin. Sometimes, these diseases may present with features akin to vasculitis. We conducted a literature review on such vasculitic manifestations in described monogenic autoinflammatory syndromes utilizing the Online Mendelian Inheritance in Man (OMIM), Medline, and Scopus databases. Our search identified that Familial Mediterranean fever (FMF) can manifest with features of either small, medium, large, or variable-vessel vasculitis. Stimulator of interferon gene (STING) associated vasculopathy of infancy (SAVI) is an interferonopathy that can mimic the presentation of medium-vessel or small-vessel vasculitis, whereas deficiency of adenosine deaminase 2 (DADA2) is another such mimic of medium-vessel vasculitis, associated in a significant number of patients with features of immunodeficiency. Occasional reports exist of vasculitic manifestations in tumor necrosis factor (TNF) receptor-associated periodic fever syndrome (TRAPS) and chronic infantile neurologic cutaneous and articular disorder (CINCA), whereas mevalonate kinase deficiency can also mimic the presentation of small- or medium vessel vasculitis. Clinicians should be aware of the possibility of autoinflammatory disease presenting as vasculitis to diagnose and treat the same appropriately. PMID- 29032442 TI - The Influence of Peers During Adolescence: Does Homophobic Name Calling by Peers Change Gender Identity? AB - Adolescents actively evaluate their identities during adolescence, and one of the most salient and central identities for youth concerns their gender identity. Experiences with peers may inform gender identity. Unfortunately, many youth experience homophobic name calling, a form of peer victimization, and it is unknown whether youth internalize these peer messages and how these messages might influence gender identity. The goal of the present study was to assess the role of homophobic name calling on changes over the course of an academic year in adolescents' gender identity. Specifically, this study extends the literature using a new conceptualization and measure of gender identity that involves assessing how similar adolescents feel to both their own- and other-gender peers and, by employing longitudinal social network analyses, provides a rigorous analytic assessment of the impact of homophobic name calling on changes in these two dimensions of gender identity. Symbolic interaction perspectives-the "looking glass self"-suggest that peer feedback is incorporated into the self-concept. The current study tests this hypothesis by determining if adolescents respond to homophobic name calling by revising their self-view, specifically, how the self is viewed in relation to both gender groups. Participants were 299 6th grade students (53% female). Participants reported peer relationships, experiences of homophobic name calling, and gender identity (i.e., similarity to own- and other gender peers). Longitudinal social network analyses revealed that homophobic name calling early in the school year predicted changes in gender identity over time. The results support the "looking glass self" hypothesis: experiencing homophobic name calling predicted identifying significantly less with own-gender peers and marginally more with other-gender peers over the course of an academic year. The effects held after controlling for participant characteristics (e.g., gender), social network features (e.g., norms), and peer experiences (e.g., friend influence, general victimization). Homophobic name calling emerged as a form of peer influence that changed early adolescent gender identity, such that adolescents in this study appear to have internalized the messages they received from peers and incorporated these messages into their personal views of their own gender identity. PMID- 29032443 TI - Teacher Support, Peer Acceptance, and Engagement in the Classroom: A Three-Wave Longitudinal Study in Late Childhood. AB - Although research has examined the bivariate effects of teacher support, peer acceptance, and engagement, it remains unclear how these key classroom experiences evolve together, especially in late childhood. This study aims to provide a detailed picture of their transactional relations in late childhood. A sample of 586 children (M age = 9.26 years, 47.1% boys) was followed from fourth to sixth grade. Teacher support and engagement were student-reported and peer acceptance was peer-reported. Autoregressive cross-lagged models revealed unique longitudinal effects of both peer acceptance and teacher support on engagement, and of peer acceptance on teacher support. No reverse effects of engagement on peer acceptance or teacher support were found. The study underscores the importance of examining the relative contribution of several social actors in the classroom. Regarding interventions, improving both peer acceptance and teacher support can increase children's engagement, and augmenting peer acceptance can help to increase teacher support. PMID- 29032445 TI - Monitoring coal mine changes and their impact on landscape patterns in an alpine region: a case study of the Muli coal mine in the Qinghai-Tibet Plateau. AB - The Muli coal mine is the largest open-cast coal mine in the Qinghai-Tibet Plateau, and it consists of two independent mining sites named Juhugeng and Jiangcang. It has received much attention due to the ecological problems caused by rapid expansion in recent years. The objective of this paper was to monitor the mining area and its surrounding land cover over the period 1976-2016 utilizing Landsat images, and the network structure of land cover changes was determined to visualize the relationships and pattern of the mining-induced land cover changes. In addition, the responses of the surrounding landscape pattern were analysed by constructing gradient transects. The results show that the mining area was increasing in size, especially after 2000 (increased by 71.68 km2), and this caused shrinkage of the surrounding lands, including alpine meadow wetland (53.44 km2), alpine meadow (6.28 km2) and water (6.24 km2). The network structure of the mining area revealed the changes in lands surrounding the mining area. The impact of mining development on landscape patterns was mainly distributed within a range of 1-6 km. Alpine meadow wetland was most affected in Juhugeng, while alpine meadow was most affected in Jiangcang. The results of this study provide a reference for the ecological assessment and restoration of the Muli coal mine land. PMID- 29032444 TI - Modulating signaling networks by CRISPR/Cas9-mediated transposable element insertion. AB - In a recent past, transposable elements (TEs) were referred to as selfish genetic components only capable of copying themselves with the aim of increasing the odds of being inherited. Nonetheless, TEs have been initially proposed as positive control elements acting in synergy with the host. Nowadays, it is well known that TE movement into host genome comprises an important evolutionary mechanism capable of increasing the adaptive fitness. As insights into TE functioning are increasing day to day, the manipulation of transposition has raised an interesting possibility of setting the host functions, although the lack of appropriate genome engineering tools has unpaved it. Fortunately, the emergence of genome editing technologies based on programmable nucleases, and especially the arrival of a multipurpose RNA-guided Cas9 endonuclease system, has made it possible to reconsider this challenge. For such purpose, a particular type of transposons referred to as miniature inverted-repeat transposable elements (MITEs) has shown a series of interesting characteristics for designing functional drivers. Here, recent insights into MITE elements and versatile RNA guided CRISPR/Cas9 genome engineering system are given to understand how to deploy the potential of TEs for control of the host transcriptional activity. PMID- 29032446 TI - Homogenization analysis of invasion dynamics in heterogeneous landscapes with differential bias and motility. AB - Animal movement behaviors vary spatially in response to environmental heterogeneity. An important problem in spatial ecology is to determine how large scale population growth and dispersal patterns emerge within highly variable landscapes. We apply the method of homogenization to study the large-scale behavior of a reaction-diffusion-advection model of population growth and dispersal. Our model includes small-scale variation in the directed and random components of movement and growth rates, as well as large-scale drift. Using the homogenized model we derive simple approximate formulas for persistence conditions and asymptotic invasion speeds, which are interpreted in terms of residence index. The homogenization results show good agreement with numerical solutions for environments with a high degree of fragmentation, both with and without periodicity at the fast scale. The simplicity of the formulas, and their connection to residence index make them appealing for studying the large-scale effects of a variety of small-scale movement behaviors. PMID- 29032447 TI - Evaluation and calibration of high-throughput predictions of chemical distribution to tissues. AB - Toxicokinetics (TK) provides critical information for integrating chemical toxicity and exposure assessments in order to determine potential chemical risk (i.e., the margin between toxic doses and plausible exposures). For thousands of chemicals that are present in our environment, in vivo TK data are lacking. The publicly available R package "httk" (version 1.8, named for "high throughput TK") draws from a database of in vitro data and physico-chemical properties in order to run physiologically-based TK (PBTK) models for 553 compounds. The PBTK model parameters include tissue:plasma partition coefficients (Kp) which the httk software predicts using the model of Schmitt (Toxicol In Vitro 22 (2):457-467, 2008). In this paper we evaluated and modified httk predictions, and quantified confidence using in vivo literature data. We used 964 rat Kp measured by in vivo experiments for 143 compounds. Initially, predicted Kp were significantly larger than measured Kp for many lipophilic compounds (log10 octanol:water partition coefficient > 3). Hence the approach for predicting Kp was revised to account for possible deficiencies in the in vitro protein binding assay, and the method for predicting membrane affinity was revised. These changes yielded improvements ranging from a factor of 10 to nearly a factor of 10,000 for 83 Kp across 23 compounds with only 3 Kp worsening by more than a factor of 10. The vast majority (92%) of Kp were predicted within a factor of 10 of the measured value (overall root mean squared error of 0.59 on log10-transformed scale). After applying the adjustments, regressions were performed to calibrate and evaluate the predictions for 12 tissues. Predictions for some tissues (e.g., spleen, bone, gut, lung) were observed to be better than predictions for other tissues (e.g., skin, brain, fat), indicating that confidence in the application of in silico tools to predict chemical partitioning varies depending upon the tissues involved. Our calibrated model was then evaluated using a second data set of human in vivo measurements of volume of distribution (Vss) for 498 compounds reviewed by Obach et al. (Drug Metab Dispos 36(7):1385-1405, 2008). We found that calibration of the model improved performance: a regression of the measured values as a function of the predictions has a slope of 1.03, intercept of - 0.04, and R2 of 0.43. Through careful evaluation of predictive methods for chemical partitioning into tissues, we have improved and calibrated these methods and quantified confidence for TK predictions in humans and rats. PMID- 29032448 TI - Effect of single-residue bulges on RNA double-helical structures: crystallographic database analysis and molecular dynamics simulation studies. AB - Asymmetric bulge loop motifs are widely dispersed in all types of functional RNAs. They are frequently occurring structural motifs in folded RNA structures and appear commonly in pre-microRNA and ribosomes, where they are involved in specific RNA-RNA and RNA-protein interactions. It is therefore necessary to understand such motifs from a structural point of view. We analyzed all available RNA structures and identified quite a few fragments of double helices that contain bulges. We found that these discontinuities often introduce kinks into the double helices, which also affects the stacking overlap between the base pairs across the irregularity. In order to understand the influence of these bulges on stability and flexibility, we carried out molecular dynamics simulations of three different single-residue bulge-containing RNA helices using the CHARMM36 force field. The structural variability at the junctions of RNA bulges is expected to differ from that in continuous double-helical stretches. The structural features of the junction region were observed to vary noticeably depending on the orientation of the bulge residue. When the base of the bulge residue is looped out, the RNA stretch behaves like a standard long A-form RNA double helix, whereas the entire RNA behaves differently when the base of the bulge residue is intercalated between base pairs inside the RNA stem. Such single base intercalation was found to introduce a permanent kink into the composite double helix, which could be a recognition element for Dicer during the maturation of miRNA. PMID- 29032449 TI - Effectiveness of a Self Help Cognitive Behavioural Treatment Program for Problem Gamblers: A Randomised Controlled Trial. AB - The study aimed to strengthen the scarce literature on self-help treatments for Problem Gambling (PG) by comparing the effectiveness of a Self-Help Cognitive Behavioral Treatment (SHCBT) program (n = 23) with a 6-week Waitlist condition (n = 32) in problem gamblers. Participants were community volunteers with gambling problems and were randomly allocated to the Waitlist and treatment conditions. Results showed significant improvements at post-treatment in gambling behaviors including frequency of gambling, average amount gambled per day and PG symptoms as well as a number of gambling correlates including psychological states (e.g., depression, anxiety and stress), gambling cognitions, gambling urges, gambling related self-efficacy, satisfaction with life, and quality of life among those who completed the SHCBT program, when compared with the waitlist condition. The effect size (partial eta 2) ranged from .25 to .57 for all assessed outcomes that showed significant improvement from pre- to post-treatment. It was concluded that a self-help CBT program can be beneficial for treating community problem gamblers. PMID- 29032451 TI - Impact of body mass index on the oncological outcomes of patients treated with radical nephroureterectomy for upper tract urothelial carcinoma. AB - PURPOSE: To evaluate the association between body mass index (BMI) and oncological outcomes in patients treated with radical nephroureterectomy (RNU) for upper tract urothelial carcinoma (UTUC). METHODS: We retrospectively reviewed 237 consecutive patients treated with RNU for UTUC at our institution between 1990 and 2012. Univariable and multivariable cox regression models investigated the association of BMI with disease recurrence, cancer-specific mortality, and overall mortality. RESULTS: From the 237 patients, 104 (44%) had a BMI < 25 kg/m2, 88 (37%) had a BMI between 25 and 29.9 kg/m2, and 45 (19%) had a BMI >= 30 kg/m2 at the time of surgery. Within a median follow-up of 44 months (IQR: 24 79), 53 patients (22.4%) experienced a disease recurrence, 85 patients (35.9%) had bladder recurrence, and 44 patients (18.6%) died from the disease. The 5 year recurrence-free and cancer-specific survival rates were, respectively, 32 and 56% for BMI >= 30 kg/m2, 45 and 74% for patients with BMI 25-29.9 kg/m2, and 69 and 81% for patients with BMI < 25 kg/m2. In multivariable analyses that adjusted for the effects of the standard clinico-pathological features, BMI >= 30 kg/m2 was associated with a higher risk of disease recurrence (HR 3.23; 95% CI 2.3-6.6, p < 0.001) and cancer-specific mortality (HR 3.84; 95% CI 2.8-6.5; p < 0.001). CONCLUSIONS: Obesity was independently associated with higher risks of disease recurrence and cancer-specific mortality in patients treated with RNU for UTUC. PMID- 29032450 TI - Association between coronary artery disease severity and overactive bladder in geriatric patients. AB - PURPOSE: To investigate the association between overactive bladder (OAB) and coronary artery disease (CAD) as demonstrated on coronary angiography in patients > 65 years. METHODS: The patients who were > 65 years completed an OAB-V8 form before undergoing coronary angiography at a tertiary care hospital. The presence of OAB was documented using the self-administered OAB-V8 questionnaire. Formal stratification of the coronary vessels plaque burden was assessed by calculation of a Gensini score for each patient. Body mass index (BMI) blood urea nitrogen (BUN), serum lipid profile, fasting plasma glucose, urinalysis, urine culture, uroflowmetry, and postvoiding residual urine volume were measured for each patient. RESULTS: A total of 308 patients were analysed. Before coronary angiography, the patients were divided into two groups according to the score on the OAB-V8 questionnaire. The OAB group (n: 153) comprised those with a score >= 8 and the non-OAB group (n: 155), those with a score < 8. The mean age of the patients was 75.08 +/- 5.01 years in the OAB group and 68.73 +/- 3.26 years in the non-OAB group (p < 0.001). The Gensini scores of the patients in the OAB and non-OAB groups were 22.48 +/- 3.51 and 5.89 +/- 2.72, respectively (p = 0.001). In multiple regression analysis, no significant difference was determined between the groups in terms of gender, fasting blood glucose level, presence of hypertension, smoking, BMI, and BUN, except LDL and cholesterol levels. CONCLUSIONS: In this preliminary investigation, the incidence of severe CAD was found to be higher in patients with OAB symptoms. PMID- 29032452 TI - Treatment Outcomes with Biosimilars: Be Aware of the Nocebo Effect. AB - : Over the years, biologic agents have proven their importance in the management of chronic autoimmune diseases, such as rheumatoid arthritis, psoriasis, and inflammatory bowel disease. Biosimilars, which are biologic medicines, are highly similar to approved biologic medicines, and are comprehensively developed and rigorously tested to ensure efficacy and safety are similar to the reference product. A broader armamentarium of biosimilars is expected to improve patients' access to safe and effective biologic medicines, thus offering benefits to healthcare systems around the globe. Here we consider the factors that may compromise the benefits of biosimilars being realized, including patient and physician perception of biosimilars, and an often overlooked factor, the nocebo effect, which is re-emerging with the widespread adoption of biosimilar medicines. We have also described a variety of strategies and recommendations that could help limit the nocebo effect. FUNDING: Biogen. PMID- 29032453 TI - Rapid and sensitive detection of ketamine in blood using novel fluorescence genosensor. AB - In recent years, drug abuse has been considered as a most challenging social problem that aroused public attention. Ketamine has increased in unregulated use as a 'recreational drug' in teenagers. However, there is no suitable and maneuverable detection method for ketamine in situ at the moment. Fluorescence sensor technique, with predominant recognition and simple operation, is a good potential application in drug detection. Here, we first reported a highly sensitive and selective fluorescence genosensor for rapid detection of ketamine based on DNA-templated silver nanoclusters (DNA-AgNCs) probes, in which the DNA sequence could specially recognize ketamine with high affinity. Parameters affecting detection efficiency were investigated and optimized. Under optimum conditions, the as-prepared genosensor can allow for the determination of ketamine in the concentration range of 0.0001-20 MUg/mL with two linear equations: one is y = 2.84x-7.139 (R2 = 0.987) for 0.0001-0.1 MUg/mL, and the other is y = 1.87x-0.091 (R2 = 0.962) for 0.1-20 MUg/mL, and the estimated detection limit of ketamine is 0.06 ng/mL. Moreover, the feasibility of this proposed method was also demonstrated by analyzing forensic blood samples. Compared with official gas chromatography/mass spectrometry (GC/MS), this fluorescence genosensor is simple, rapid, and accurate for quantitative determination of ketamine in blood for pharmaceutical and forensic analysis. Overall, it is the first report on a fluorescence genosensor for detecting ketamine directly in blood. This research may provide a new insight for the analyst to band fluorescence genosensor technology together with drug monitoring in the battle against drug abuse and forensic examination. Graphical abstract High selectively detection of ketamine using a novel fluorescence genosensor based on DNA-AgNCs probe. PMID- 29032454 TI - Multivariate optimization of a microextraction by packed sorbent-programmed temperature vaporization-gas chromatography-tandem mass spectrometry method for organophosphate flame retardant analysis in environmental aqueous matrices. AB - In this work, organophosphate ester flame retardant (OPFRs) assay in environmental waters was addressed by using microextraction by packed sorbent (MEPS) and gas chromatography-tandem mass spectrometry (GC-MS/MS). Ten OPFRs with different physicochemical properties were taken into account as target compounds for a comprehensive method evaluation. Five MEPS cartridges (i.e., C2, C8, C18, Silica, and DVB) and seven solvents (i.e., methanol, ethyl acetate, methyl tert butyl ether, hexane, acetonitrile, dichloromethane, and trichloromethane) were surveyed. The analysis was performed by using a gas chromatograph equipped with a programmed temperature vaporization injector (PTV). Univariate and multivariate approaches were exploited in order to optimize the parameters affecting the MEPS extraction and the PTV injection of the analytes into the gas chromatographic system. The optimal working conditions were achieved using DVB as sorbent material and acetonitrile as elution solvent. Internal standard calibration was carried out using TBP-d27 and TCEP-d12. Satisfactory values of accuracy and precision were generally obtained as well as limit of detection (2.7-99 pg/mL for tap water; 2.9-97 pg/mL for river water; 3-107 pg/mL for wastewater) and limit of quantification (0.01-0.2 ng/mL). The proposed protocol was evaluated on real case scenarios by analyzing tap water, river water and simulated wastewater samples. The developed method is not only eco-friendly due to the low use of organic solvents but also simple and automatable since the MEPS extraction procedure can be implemented in the autosampler routine. Graphical abstract The steps of the analytical protocol. PMID- 29032455 TI - Electrochemical aptamer-based biosensor developed to monitor PSA and VEGF released by prostate cancer cells. AB - Early prostate cancer (PCa) diagnostic is crucial to enhance patient survival rates; besides, non-invasive platforms have been developed worldwide in order to precisely detect PCa biomarkers. Therefore, the aim of the present study is to develop a new aptamer-based biosensor through the self-assembling of thiolated aptamers for PSA and VEGF on the top of gold electrodes. This biosensor was tested in three prostate cell lines (RWPE-1, LNCaP and PC3). The results evidenced a stable and sensitive sensor presenting wide linear detection ranges (0.08-100 ng/mL for PSA and 0.15 ng-100 ng/mL for VEGF). Therefore, the aptasensor was able to detect the patterns of PSA and VEGF released in vitro by PCa cells, which gave new insights about the prostate cancer protein dynamics. Thus, it could be used as a non-invasive PCa clinical diagnosis instrument in the near future. Graphical Abstract Overview of the experimental design applied to the aptamer-based electrochemical sensor self-assembled on the thiolated hairpin structure. A filter membrane was added on top of working electrode to provide the cell-attachment surface after aptamer incubation, without compromising the aptamer layer. The pore membrane allowed target proteins to pass to the aptamer surface; the MCH backfilling avoided unspecific protein binding to the gold electrode surface. PMID- 29032456 TI - Silver-loaded chitosan coating as an integrated approach to face titanium implant associated infections: analytical characterization and biological activity. AB - The present work focuses on the idea to prevent and/or inhibit the colonization of implant surfaces by microbial pathogens responsible for post-operative infections, adjusting antimicrobial properties of the implant surface prior to its insertion. An antibacterial coating based on chitosan and silver was developed by electrodeposition techniques on poly(acrylic acid)-coated titanium substrates. When a silver salt was added during the chitosan deposition step, a stable and scalable silver incorporation was achieved. The physico-chemical composition of the coating was studied by X-ray photoelectron spectroscopy (XPS), while atomic force microscopy in intermittent contact mode (ICAFM) was used to explore the coating morphology. The amount of silver released from the coating up to 21 days was evaluated by inductively coupled plasma mass spectrometry (ICP MS). The capability of the proposed coating to interact in vitro with the biological environment in terms of compatibility and antibacterial properties was assessed using MG-63 osteoblast-like cell line and S. aureus and P. aeruginosa strains, respectively. These studies revealed that a coating showing a silver surface atomic percentage equal to 0.3% can be effectively used as antibacterial system, while providing good viability of osteoblast-like cells after 7 days. The antibacterial effectiveness of the prepared coating is mainly driven by a contact killing mechanism, although the low concentration of silver released (below 0.1 ppm up to 21 days) is enough to inhibit bacterial growth, advantaging MG-63 cells in the race for the surface. PMID- 29032457 TI - Advances in microRNA analysis. AB - MicroRNAs (miRNAs) are single-stranded noncoding RNA molecules that act as key regulators of mRNA expression and are emerging biomarkers for disease. Their small size (18-25 nt) presents challenges to molecular recognition, labeling, and signal generation. Recent research activity in this field has aimed at the development of methods for miRNA quantification that combine high detectability, broad dynamic range, practicality, multiplexity, and low cost for prospective applications in diagnostic laboratories. This review article covers the most recent advances in microRNA analysis. PMID- 29032458 TI - A Systematic Review of Techniques and Sources of Big Data in the Healthcare Sector. AB - The main objective of this paper is to present a review of existing researches in the literature, referring to Big Data sources and techniques in health sector and to identify which of these techniques are the most used in the prediction of chronic diseases. Academic databases and systems such as IEEE Xplore, Scopus, PubMed and Science Direct were searched, considering the date of publication from 2006 until the present time. Several search criteria were established as 'techniques' OR 'sources' AND 'Big Data' AND 'medicine' OR 'health', 'techniques' AND 'Big Data' AND 'chronic diseases', etc. Selecting the paper considered of interest regarding the description of the techniques and sources of Big Data in healthcare. It found a total of 110 articles on techniques and sources of Big Data on health from which only 32 have been identified as relevant work. Many of the articles show the platforms of Big Data, sources, databases used and identify the techniques most used in the prediction of chronic diseases. From the review of the analyzed research articles, it can be noticed that the sources and techniques of Big Data used in the health sector represent a relevant factor in terms of effectiveness, since it allows the application of predictive analysis techniques in tasks such as: identification of patients at risk of reentry or prevention of hospital or chronic diseases infections, obtaining predictive models of quality. PMID- 29032459 TI - Predictors of silent corticotroph adenoma recurrence; a large retrospective single center study and systematic literature review. AB - PURPOSE: Silent corticotroph adenomas (SCAs) are clinically silent and non secreting, but exhibit positive adrenocorticotropic hormone (ACTH) immunostaining. We characterized a single center cohort of SCA patients, compared the SCAs to silent gonadotroph adenomas (SGAs), identified predictors of recurrence, and reviewed and compared the cohort to previously published SCAs cases. METHODS: Retrospective review of SCA and SGA surgically resected patients over 10 years and 6 years, respectively. Definitions; SCA-no clinical or biochemical evidence of Cushing's syndrome and ACTH positive immunostaining, and SGA-steroidogenic factor (SF-1) positive immunostaining. A systematic literature search was undertaken using Pubmed and Scopus. RESULTS: Review revealed 814 pituitary surgeries, 39 (4.8%) were SCAs. Mean follow-up was 6.4 years (range 0.5 23.8 years). Pre-operative magnetic resonance imaging demonstrated sphenoid and/or cavernous sinus invasion in 44%, 33% were > 50% cystic, and 28% had high ACTH levels pre-operatively. Compared to SGAs (n = 70), SCAs were of similar size and invasiveness (2.5 vs. 2.9 cm, p = 0.2; 44 vs. 41%, p = 0.8, respectively), but recurrence rate was higher (36 vs. 10%, p = 0.001) and more patients received radiation therapy (18 vs. 3%, p = 0.006). Less cystic tumors (0 vs. 50%, p < 0.001) and higher pre-operative ACTH levels (54 vs. 28 pg/ml, p = 0.04) were predictors of recurrence for SCAs. CONCLUSION: This review is unique; a strict definition of SCA was used, and single center SCAs were compared with SGAs and with SCAs literature reviewed cases. We show that SCAs are aggressive and identify predictors of recurrence. Accurate initial diagnosis, close imaging and biochemical follow up are warranted. PMID- 29032461 TI - The effect of ribose pre-treatment of cortical bone on gamma-irradiation sterilization effectiveness. AB - Reconstruction of large skeletal defects is a significant and challenging issue. Tissue banks often use gamma-irradiation (15-35 kGy) to sterilize bone allografts, which, however, drastically impairs the post-yield mechanical properties. In previous studies, we reported the development of a method that protects human bone collagen connectivity through ribose crosslinking while still undergoing gamma-irradiation. Given these promising results, the next step was to determine if the presence of ribose within the bone tissue would interfere with the effectiveness of the gamma-irradiation sterilization against bacteria. This study had two stages. The aim of the first stage was to assess the protective effect of ribose in solution using a Bacillus pumilus spore strip model. The aim of the second stage was to assess the protective effect of ribose (R) on spores within a human cortical bone model in comparison to conventionally irradiated bone (I). Treatment of B. pumilus spore strips with ribose in solution led to temperature-dependent effects on spore viability versus spore strips treated with PBS alone. Ribose solution at 60 degrees C led to a notable two logs decrease in spore count relative to PBS at 60 degrees C. In the human bone model, the number of spores in the I and R groups were greatly decreased in comparison to the non irradiated N group. No spore colonies were detected in the R group (n = 4) whereas two of the four plates of group I formed colonies. This study provides evidence that the method of pre-treating bone with ribose crosslinking prior to irradiation sterilization, while improving irradiation sterilized bone allograft quality, also may improve the effectiveness of the sterilization process. PMID- 29032460 TI - The impact of KIR-HLA genotype on hepatitis B virus clearance in Iranian infected individuals. AB - Killer cell immunoglobulin like receptors (KIRs) have a principal role in regulating the effector functions of NK cells, particularly in viral infections. The major ligands for KIRs are human leukocyte antigen (HLA) class I molecules. The aim of this study is to investigate the possible association of KIR genes, their known HLA ligands and compound KIR-HLA genotypes with hepatitis B virus (HBV) infection. Our study group consisted of 202 Iranian HBV-infected patients (52 spontaneously recovered, 50 asymptomatic carriers, 50 chronic sufferers and 50with liver cirrhosis) and 100 ethnic-matched healthy control subjects. KIR and HLA genotyping was performed by a polymerase chain reaction-sequence-specific primer (PCR-SSP). The frequencies of the KIR2DL5A, KIR2DS1, and KIR3DS1 genes were significantly elevated in recovered individuals when compared with both control and patient groups. Also, KIR2DL5, and KIR3DP1 full were escalated in recovered individuals in comparison with patient groups. In addition, HLA-Bw4 ligand and HLA-A Bw4 were highly frequent in recovered individuals compared with healthy controls. Furthermore, the KIR3DS1 + HLA-Bw4, KIR3DS1 + HLA-Bw4 Iso80 , and KIR3DS1 + HLA-A Bw4 genotypes were significantly more common in recovered individuals than both healthy control and patient groups. Interestingly, AA genotype had less frequency and Bx had higher frequency in recovered individuals compared with both healthy control and patient groups. Our findings suggest a potential impact of the NK cells' activating phenotype that leads to the HBV clearance in infected individuals. PMID- 29032463 TI - Kit W-sh Mutation Prevents Cancellous Bone Loss during Calcium Deprivation. AB - Calcium is essential for normal bone growth and development. Inadequate calcium intake increases the risk of osteoporosis and fractures. Kit ligand/c-Kit signaling plays an important role in regulating bone homeostasis. Mice with c-Kit mutations are osteopenic. The present study aimed to investigate whether impairment of or reduction in c-Kit signaling affects bone turnover during calcium deprivation. Three-week-old male WBB6F1/J-Kit W /Kit W-v /J (W/W v ) mice with c-Kit point mutation, Kit W-sh /HNihrJaeBsmJ (W sh /W sh ) mice with an inversion mutation in the regulatory elements upstream of the c-Kit promoter region, and their wild-type controls (WT) were fed either a normal (0.6% calcium) or a low calcium diet (0.02% calcium) for 3 weeks. MUCT analysis indicated that both mutants fed normal calcium diet had significantly decreased cortical thickness and cancellous bone volume compared to WT. The low calcium diet resulted in a comparable reduction in cortical bone volume and cortical thickness in the W/W v and W sh /W sh mice, and their corresponding controls. As expected, the low calcium diet induced cancellous bone loss in the W/W v mice. In contrast, W sh /W sh cancellous bone did not respond to this diet. This c-Kit mutation prevented cancellous bone loss by antagonizing the low calcium diet-induced increase in osteoblast and osteoclast numbers in the W sh /W sh mice. Gene expression profiling showed that calcium deficiency increased Osx, Ocn, Alp, type I collagen, c-Fms, M-CSF, and RANKL/OPG mRNA expression in controls; however, the W sh mutation suppressed these effects. Our findings indicate that although calcium restriction increased bone turnover, leading to osteopenia, the decreased c-Kit expression levels in the W sh /W sh mice prevented the low calcium diet induced increase in cancellous bone turnover and bone loss but not the cortical bone loss. PMID- 29032462 TI - Association of TNFSF4 Polymorphisms with Neuromyelitis Optica Spectrum Disorders in a Chinese Population. AB - The tumor necrosis factor ligand superfamily member 4 (TNFSF4) gene encodes a vital co-stimulatory molecule of the immune system and has been identified as a susceptibility locus for systemic lupus erythematosus, systemic sclerosis, and primary Sjogren's syndrome. However, the association of TNFSF4 polymorphisms with neuromyelitis optica spectrum disorders (NMOSD), an inflammatory, demyelinating autoimmune disease of the central nervous system, has not yet been investigated. To evaluate whether TNFSF4 polymorphisms contribute to risk of NMOSD, four single nucleotide polymorphisms (SNPs) (rs1234315, rs2205960, rs704840, and rs844648) were selected and genotyped in a cohort of 312 patients with NMOSD and 487 healthy controls. Our study showed that rs844648 was associated with an increased risk of NMOSD, according to the allelic model (OR = 1.30, 95% CI 1.06-1.59, P = 0.011, Pcorr = 0.044). Significant associations of rs844648 (OR = 1.67, 95% CI 1.17-2.38, P = 0.005, Pcorr = 0.02) and rs704840 (OR = 1.75, 95% CI 1.17-2.63, P = 0.007, Pcorr = 0.027) with NMOSD occurrence were also observed under the recessive model. Moreover, linkage disequilibrium analysis revealed two blocks within TNFSF4; in one block, the haplotype Ars844648Grs704840 significantly increased the risk of NMOSD, whereas Grs844648Trs704840 reduced the risk. This study demonstrates an association between TNFSF4 polymorphisms and susceptibility for the development of NMOSD in the Chinese population. PMID- 29032465 TI - Hypoxia and hypoxia-inducible factors in neuroblastoma. AB - Hypoxia (i.e., low oxygen levels) is a known feature of aggressive tumors. Cells, including tumor cells, respond to conditions of insufficient oxygen by activating a transcriptional program mainly driven by hypoxia-inducible factors (HIF)-1 and HIF-2. Both HIF-1alpha and HIF-2alpha expression levels have been shown to correlate to patient outcome in various tumor forms and in neuroblastoma, a solid childhood tumor of the sympathetic nervous system, in particular, HIF-2alpha marks a subpopulation of immature neural crest-like perivascularly located cells and associates with aggressive disease and distant metastasis. It has for long been recognized that the HIF-alpha subunits are oxygen-dependently regulated at the post-translational level, via ubiquitination and proteasomal degradation. Evidence of oxygen-independent mechanisms of regulation, transcriptional control of EPAS1/HIF2A and possible cytoplasmic activities of HIF-2alpha has also emerged during recent years. In this review, we discuss these non-conventional actions of HIF-2alpha, its putative role as a therapeutic target and the constraints it carries, as well as the importance of HIF-2 activity in a vascularized setting, the so-called pseudo-hypoxic state. PMID- 29032464 TI - Nutritional composition of honey bee food stores vary with floral composition. AB - Sufficiently diverse and abundant resources are essential for generalist consumers, and form an important part of a suite of conservation strategies for pollinators. Honey bees are generalist foragers and are dependent on diverse forage to adequately meet their nutritional needs. Through analysis of stored pollen (bee bread) samples obtained from 26 honey bee (Apis mellifera L.) hives across NW-England, we quantified bee bread nutritional content and the plant species that produced these stores from pollen. Protein was the most abundant nutrient by mass (63%), followed by carbohydrates (26%). Protein and lipid content (but not carbohydrate) contributed significantly to ordinations of floral diversity, linking dietary quality with forage composition. DNA sequencing of the ITS2 region of the nuclear ribosomal DNA gene identified pollen from 89 distinct plant genera, with each bee bread sample containing between 6 and 35 pollen types. Dominant genera included dandelion (Taraxacum), which was positively correlated with bee bread protein content, and cherry (Prunus), which was negatively correlated with the amount of protein. In addition, proportions of amino acids (e.g. histidine and valine) varied as a function of floral species composition. These results also quantify the effects of individual plant genera on the nutrition of honey bees. We conclude that pollens of different plants act synergistically to influence host nutrition; the pollen diversity of bee bread is linked to its nutrient content. Diverse environments compensate for the loss of individual forage plants, and diversity loss may, therefore, destabilize consumer communities due to restricted access to alternative resources. PMID- 29032466 TI - Codon usage and amino acid usage influence genes expression level. AB - Highly expressed genes in any species differ in the usage frequency of synonymous codons. The relative recurrence of an event of the favored codon pair (amino acid pairs) varies between gene and genomes due to varying gene expression and different base composition. Here we propose a new measure for predicting the gene expression level, i.e., codon plus amino bias index (CABI). Our approach is based on the relative bias of the favored codon pair inclination among the genes, illustrated by analyzing the CABI score of the Medicago truncatula genes. CABI showed strong correlation with all other widely used measures (CAI, RCBS, SCUO) for gene expression analysis. Surprisingly, CABI outperforms all other measures by showing better correlation with the wet-lab data. This emphasizes the importance of the neighboring codons of the favored codon in a synonymous group while estimating the expression level of a gene. PMID- 29032468 TI - The M2 haplotype of ANXA5 gene in the context of unexplained recurrent miscarriages. PMID- 29032467 TI - A Helicobacter pylori Vacuolating Cytotoxin A: Mouse DHFR Fusion Protein Triggers Dye Release from Liposomes. AB - The membrane perturbing action of the VacA toxin from Helicobacter pylori is responsible for vacuole formation in intracellular compartments and the induction of apoptosis. The VacA toxin contains 2 major domains, p33 and p55, which are involved in receptor binding and membrane pore formation, respectively. Improved methodologies for VacA purification and assays are urgently needed for further detailed investigations on the mechanism of action of this significant virulence factor. We found that by fusing mouse DHFR with the N-terminus of the full-length (p88) VacA toxin, expression levels in recombinant E. coli were substantially increased when compared to the conventional (His)6-tagged protein. The DHFR-VacA fusion protein was active in sulforhodamine dye-release assays using liposomes at acidic pH in a concentration-dependent manner. Enzymatic activity of DHFR in the fusion protein was comparable to a commercial reference sample of purified DHFR; however, activity was insensitive to inhibition by methotrexate. Our findings suggest that the VacA p88 toxin with a modified N-terminus still maintains its capability for membrane insertion and that pH-dependent conformational changes occur during interaction of VacA with membranes. PMID- 29032469 TI - iTRAQ-based proteomic profiling of a Microbacterium sp. strain during benzo(a)pyrene removal under anaerobic conditions. AB - This study focused on the protein expression of a Microbacterium sp. strain that utilized various concentrations of benzo(a)pyrene (BaP) as the sole source of carbon and energy under anaerobic conditions. A total of 1539 protein species were quantified by isobaric tags for relative and absolute quantitation (iTRAQ) coupled with LC-MS/MS. GO, COG, and pathway enrichment analysis showed that most proteins demonstrated catalytic and binding functions and were mainly involved in metabolic processes, cellular processes, and single-organism processes. Sixty-two proteins were found in their abundances in BaP-stress conditions different from normal conditions. These proteins function in the metabolic pathways; the biosynthesis of secondary metabolites, the biosynthesis of antibiotics, microbial metabolism in diverse environments, carbon metabolism, and the biosynthesis of amino acids were markedly altered. Furthermore, enoyl-CoA hydratase was proposed to be a key protein during BaP removal of the Microbacterium sp. strain. This study provides a powerful platform for the further exploration of BaP removal, and the differentially expressed proteins provide insight into the mechanism of the BaP removal pathway. PMID- 29032470 TI - Growth and biomass productivity of Scenedesmus vacuolatus on a twin layer system and a comparison with other types of cultivations. AB - Scenedesmus is a genus of microalgae employed for several industrial uses. Industrial cultivations are performed in open ponds or in closed photobioreactors (PBRs). In the last years, a novel type of PBR based on immobilized microalgae has been developed termed porous substrate photobioreactors (PSBR) to achieve significant higher biomass density during cultivation in comparison to classical PBRs. This work presents a study of the growth of Scenedesmus vacuolatus in a Twin Layer System PSBR at different light intensities (600 MUmol photons m-2 s-1 or 1000 MUmol photons m-2 s-1), different types and concentrations of the nitrogen sources (nitrate or urea), and at two CO2 levels in the gas phase (2% or 0.04% v/v). The microalgal growth was followed by monitoring the attached biomass density as dry weight, the specific growth rate and pigment accumulation. The highest productivity (29 g m-2 d-1) was observed at a light intensity of 600 MUmol photons m-2 s-1 and 2% CO2. The types and concentrations of nitrogen sources did not influence the biomass productivity. Instead, the higher light intensity of 1000 MUmol photons m-2 s-1 and an ambient CO2 concentration (0.04%) resulted in a significant decrease of productivity to 18 and 10-12 g m-2 d-1, respectively. When compared to the performance of similar cultivation systems (15 30 g m-2 d-1), these results indicate that the Twin Layer cultivation System is a competitive technique for intensified microalgal cultivation in terms of productivity and, at the same time, biomass density. PMID- 29032471 TI - Copper and cerium-regulated gene expression in Methylosinus trichosporium OB3b. AB - In aerobic methanotrophs, copper and cerium control the expression and activity of different forms of methane monooxygenase and methanol dehydrogenase, respectively. To exploit methanotrophy for the valorization of methane, it is crucial to determine if these metals exert more global control on gene expression in methanotrophs. Using RNA-Seq analysis we compared the transcriptome of Methylosinus trichosporium OB3b grown in the presence of varying amounts of copper and cerium. When copper was added in the absence of cerium, expression of genes encoding for both soluble and particulate methane monooxygenases varied as expected. Genes encoding for copper uptake, storage, and efflux also increased, indicating that methanotrophs must carefully control copper homeostasis. When cerium was added in the absence of copper, expression of genes encoding for alternative methanol dehydrogenases varied as expected, but few other genes were found to have differential expression. When cerium concentrations were varied in the presence of copper, few genes were found to be either up- or downregulated, indicating that copper over rules any regulation by cerium. When copper was increased in the presence of cerium, however, many genes were upregulated, most notably multiple steps of the central methane oxidation pathway, the serine cycle, and the ethylmalonyl-CoA pathway. Many genes were also downregulated, including those encoding for nitrogenase and hydrogenase. Collectively, these data suggest that copper plays a larger role in regulating gene expression in methanotrophs, but that significant changes occur when both copper and cerium are present. PMID- 29032472 TI - Application of proteotyping Strain SolutionTM ver. 2 software and theoretically calculated mass database in MALDI-TOF MS typing of Salmonella serotype. AB - Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS)-based microbial identification is a popular analytical method. Strain Solution proteotyping software available for MALDI-TOF MS has great potential for the precise and detailed discrimination of microorganisms at serotype- or strain-level, beyond the conventional mass fingerprinting approaches. Here, we constructed a theoretically calculated mass database of Salmonella enterica subspecies enterica consisting of 12 biomarker proteins: ribosomal proteins S8, L15, L17, L21, L25, and S7, Mn-cofactor-containing superoxide dismutase (SodA), peptidyl-prolyl cis-trans isomerase C (PPIase C), and protein Gns, and uncharacterized proteins YibT, YaiA, and YciF, that can allow serotyping of Salmonella. Strain Solution ver. 2 software with the novel database constructed in this study demonstrated that 109 strains (94%), including the major outbreak-associated serotypes, Enteritidis, Typhimurium, and Infantis, could be correctly identified from others by colony-directed MALDI-TOF MS using 116 strains belonging to 23 kinds of typed and untyped serotypes of S. enterica from culture collections, patients, and foods. We conclude that Strain Solution ver. 2 software integrated with the accurate mass database will be useful for the bacterial proteotyping by MALDI-TOF MS-based microbial classification in the clinical and food safety fields. PMID- 29032473 TI - Oligosaccharide biotechnology: an approach of prebiotic revolution on the industry. AB - Oligosaccharides are polymers with two to ten monosaccharide residues which have sweetener functions and sensory characteristics, in addition to exerting physiological effects on human health. The ones called nondigestible exhibit a prebiotic behavior being fermented by colonic microflora or stimulating the growth of beneficial bacteria, playing roles in the immune system, protecting against cancer, and preventing cardiovascular and metabolic issues. The global prebiotics market is expected to grow around 12.7% in the next 8 years, so manufacturers are developing new alternatives to obtain sustainable and efficient processes for application on a large scale. Most studied examples of biotechnological processes involve the development of new strategies for fructooligosaccharide, galactooligosaccharide, xylooligosaccharide, and mannanooligosaccharide synthesis. Among these, the use of whole cells in fermentation, synthesis of microbial enzymes (beta-fructofuranosidases, beta galactosidases, xylanases, and beta-mannanases), and enzymatic process development (permeabilization, immobilization, gene expression) can be highlighted, especially if the production costs are reduced by the use of agro industrial residues or by-products such as molasses, milk whey, cotton stalks, corncobs, wheat straw, poplar wood, sugarcane bagasse, and copra meal. This review comprises recent studies to demonstrate the potential for biotechnological production of oligosaccharides, and also aspects that need more investigation for future applications in a large scale. PMID- 29032474 TI - Discrepancy between the initial assessment of injury severity and post hoc determination of injury severity in patients with apparently mild traumatic brain injury: a retrospective multicenter cohort analysis. AB - PURPOSE: Traumatic brain injury (TBI) is a major cause of trauma-related visits to emergency departments (ED). Determination of monitoring requirements of patients with apparently mild TBI is challenging. Patients may turn out to be more severely injured than initially assumed, and failure to identify these patients constitutes a serious threat to patient safety. We, therefore, aimed to identify clinical risk factors for more severe injuries in patients with apparently mild TBI. METHODS: In a retrospective cohort analysis performed at two level I trauma centers, 808 patients aged >= 16 presenting to the ED with head trauma and a Glasgow Coma Scale (GCS) score 13-15 who received a head CT scan were studied. Discrepancies between the initial TBI severity as determined by GCS and severity as determined post hoc by the Head Abbreviated Injury Score were assessed. Multiple logistic regression was used to identify risk factors of such discrepancies. RESULTS: 104 (12.9%) patients were more severely injured than initially classified. A GCS < 15 at presentation (GCS 13: OR 6.2, [95% CI 3.8 9.9]; GCS 14: OR 2.7, [2.0-3.7]), an SpO2 < 90% (OR 5.4, [1.2-23.4]), loss of consciousness (OR 2.3, [1.5-3.5]), absence of equal and reactive pupils (OR 2.1, [1.6-2.7]), transport by ambulance (OR 2.0, [1.7-2.4]), and use of anticoagulant drugs (OR 1.2, [1.1-1.3]) were independent risk factors of more severe injury. CONCLUSIONS: Six risk factors of more severe injury in patients presenting with apparently mild TBI were identified. Patients with any of these factors should be thoroughly monitored for signs of neurologic deterioration. PMID- 29032475 TI - Robot-assisted and conventional freehand pedicle screw placement: a systematic review and meta-analysis of randomized controlled trials. AB - PURPOSE: Several studies have revealed that robot-assisted technique might improve the pedicle screw insertion accuracy, but owing to the limited sample sizes in the individual study reported up to now, whether or not robot-assisted technique is superior to conventional freehand technique is indefinite. Thus, we performed this systematic review and meta-analysis based on randomized controlled trials to assess which approach is better. METHODS: Electronic databases including PubMed, EMBASE, CENTRAL, ISI Web of Science, CNKI and WanFang were systematically searched to identify potentially eligible articles. Main endpoints containing the accuracy of pedicle screw implantation and proximal facet joint violation were evaluated as risk ratio (RR) and the associated 95% confidence intervals (95% CIs), while radiation exposure and surgical duration were presented as mean difference (MD) or standard mean difference (SMD). Meta analyses were performed using RevMan 5.3 software. RESULTS: Six studies involving 158 patients (688 pedicle screws) in robot-assisted group and 148 patients (672 pedicle screws) in freehand group were identified matching our study. The Grade A accuracy rate in robot-assisted group was superior to freehand group (RR 1.03, 95% CI 1.00, 1.06; P = 0.04), but the Grade A + B accuracy rate did not differ between the two groups (RR 1.01, 95% CI 0.99, 1.02; P = 0.29). With regard to proximal facet joint violation, the combined results suggested that robot assisted group was associated with significantly fewer proximal facet joint violation than freehand group (RR 0.07, 95% CI 0.01, 0.55; P = 0.01). As was the radiation exposure, our findings suggested that robot-assisted technique could significantly reduce the intraoperative radiation time (MD - 12.38, 95% CI - 17.95, - 6.80; P < 0.0001) and radiation dosage (SMD - 0.64, 95% CI - 0.85, - 0.43; P < 0.00001). But the overall surgical duration was longer in robot assisted group than conventional freehand group (MD 20.53, 95% CI 5.17, 35.90; P = 0.009). CONCLUSIONS: The robot-assisted technique was associated with equivalent accuracy rate of pedicle screw implantation, fewer proximal facet joint violation, less intraoperative radiation exposure but longer surgical duration than freehand technique. Powerful evidence relies on more randomized controlled trials with high quality and larger sample size in the future. PMID- 29032476 TI - The 7th Italian supplement: a selection from the Italian Spine Society and Scoliosis Study Group (SICV&GIS). PMID- 29032477 TI - Comments on mortality and cardiorespiratory complications in trochanteric femoral fractures: a ten year retrospective analysis. PMID- 29032478 TI - Total knee arthroplasty in patients with a history of illicit intravenous drug abuse. AB - PURPOSE: Injection drug users are at high risk for both infection with blood borne pathogens, namely, human immune deficiency virus (HIV), hepatitis-B, -C virus, various bacterial infections, as well as early primary and secondary joint degeneration. When total knee arthroplasty (TKA) is anticipated the risk of septic complications is a major concern. The purpose of this study was to assess the clinical and radiographic outcome of patients with a history of intravenous drug use after total knee arthroplasty. The primary outcome was revision rate. Secondary outcomes were the Western Ontario and McMaster Universities Arthritis Index (WOMAC), Knee Society Score (KSS) and radiographic loosening. METHODS: We retrospectively reviewed the records of 1,692 TKA performed or revised in our institution. Data of 18 TKA in 12 patients (11 male, 1 female; average age 42, range 23-62 years) with a history of intravenous opioid abuse were available for final analysis. RESULTS: The mean follow up was 125 (range 25-238) months. Seven patients required revision surgery due to periprosthetic joint infection after 62 months (range 5-159): one two staged revision, three arthrodesis and three amputations. The median prosthesis survival was 101 (95%-CI 48-154) months. CONCLUSION: Total knee arthroplasty in patients with a history of intravenous drug abuse is associated with major complications, including above-the-knee amputation. If permanent abstinence from intravenous drug abuse is doubtful, other therapeutic options including primary arthrodesis should be considered. PMID- 29032480 TI - Correction to: Parents' Translations of Child Gesture Facilitate Word Learning in Children with Autism, Down Syndrome and Typical Development. AB - The original version of the article unfortunately contained mistake in the "Methods/Participants" section (p. 224) as "[M TD = 168.26 (SD = 125.18) vs. M AU = 172.91 (SD = 195.88) vs. M DS = 145.43 (SD = 88.78); Kruskal-Wallis, chi 2(2) = 2.42, p = .30], and for word types [M TD = 28.43 (SD = 26.89) vs. M AU = 39.65 (SD = 49.07) vs. M DS = 18.35 (SD = 22.78); chi 2(2) = 3.15, p = .21]''. The correct text is given below: "[M TD = 51.91 (SD = 59.68) vs. M AU = 74.43 (SD = 116.01) vs. M DS = 25.26 (SD = 39.39); Kruskal-Wallis, chi 2(2) = 3.39, p = .18], and for word types [M TD = 18.48 (SD = 20.51) vs. M AU = 24.74 (SD = 32.98) vs. M DS = 11.22 (SD = 18.87); chi 2(2) = 3.58, p = .17]".. PMID- 29032479 TI - "Pulmonary Vein Sign" for Pulmonary Embolism Diagnosis in Computed Tomography Angiography. AB - PURPOSES: Considering that pulmonary arterial obstruction decreases venous flow, we hypothesized that filling defects in pulmonary veins can be identified in areas adjacent to pulmonary embolism (PE). This sign was named the "pulmonary vein sign" (PVS), and we evaluated its prevalence and performance for PE diagnosis in computed tomography pulmonary angiography (CTPA). METHODS: This retrospective study enrolled consecutive patients with clinical suspicion of PE who underwent CTPA scan. The PVS was defined by the following criteria: (a) presence of a homogeneous filling defect of at least 2 cm in a pulmonary vein; (b) attenuation of the left atrium > 160 Hounsfield units. Using the cases that presented PE on CTPA as reference, sensitivity, specificity, and positive and negative predictive values were calculated for PVS. RESULTS: In total, 119 patients (73 female; mean age, 62 years) were included in this study. PE was diagnosed in 44 (35.8%) patients. The PVS was present in 16 out of 44 patients with PE. Sensitivity was 36.36% (95% confidence interval (CI) 22.83-52.26%); specificity, 98.67% (95% CI 91.79-99.93%); positive predictive value, 94.12% (95% CI 69.24-99.69%); negative predictive value, 72.55% (95% CI 62.67-80.70%). The Kappa index for the PVS was good (0.801; 95% CI 0.645-0.957). PVS was correlated with lobar and segmental pulmonary embolism (p < 0.01). CONCLUSION: Despite a low sensitivity, presence of the pulmonary vein sign was highly specific for PE, with a good agreement between readers. This sign could contribute for PE diagnosis on CTPA studies. PMID- 29032482 TI - The use of budget impact analysis in the economic evaluation of new medicines in Australia, England, France and the United States: relationship to cost effectiveness analysis and methodological challenges. PMID- 29032481 TI - Transitioning Together: A Multi-family Group Psychoeducation Program for Adolescents with ASD and Their Parents. AB - Currently there are few evidence-based programs available for families of individuals with ASD during the transition to adulthood. The present study provided a preliminary evaluation of a multi-family group psychoeducation intervention using a randomized waitlist control design (n = 41). Families in the intervention condition participated in Transitioning Together, an 8-week program designed to reduce family distress and improve social functioning for adolescents. Findings indicated significant improvements in parental depressive symptoms and problem solving from pre- to post-intervention for parents in the intervention condition but not for parents in the control condition. Social interactions also improved for youth in the intervention condition relative to controls. Parents reported satisfaction with the program and particularly valued the opportunity to interact with other families. PMID- 29032483 TI - Regulation of Cardiac Voltage-Gated Sodium Channel by Kinases: Roles of Protein Kinases A and C. AB - In the heart, voltage-gated sodium (Nav) channel (Nav1.5) is defined by its pore forming alpha-subunit and its auxiliary beta-subunits, both of which are important for its critical contribution to the initiation and maintenance of the cardiac action potential (AP) that underlie normal heart rhythm. The physiological relevance of Nav1.5 is further marked by the fact that inherited or congenital mutations in Nav1.5 channel gene SCN5A lead to altered functional expression (including expression, trafficking, and current density), and are generally manifested in the form of distinct cardiac arrhythmic events, epilepsy, neuropathic pain, migraine, and neuromuscular disorders. However, despite significant advances in defining the pathophysiology of Nav1.5, the molecular mechanisms that underlie its regulation and contribution to cardiac disorders are poorly understood. It is rapidly becoming evident that the functional expression (localization, trafficking and gating) of Nav1.5 may be under modulation by post translational modifications that are associated with phosphorylation. We review here the molecular basis of cardiac Na channel regulation by kinases (PKA and PKC) and the resulting functional consequences. Specifically, we discuss: (1) recent literature on the structural, molecular, and functional properties of cardiac Nav1.5 channels; (2) how these properties may be altered by phosphorylation in disease states underlain by congenital mutations in Nav1.5 channel and/or subunits such as long QT and Brugada syndromes. Our expectation is that understanding the roles of these distinct and complex phosphorylation processes on the functional expression of Nav1.5 is likely to provide crucial mechanistic insights into Na channel associated arrhythmogenic events and will facilitate the development of novel therapeutic strategies. PMID- 29032485 TI - Endoscopic plantar fascia release via a suprafascial approach is effective for intractable plantar fasciitis. AB - PURPOSE: To evaluate the medium-term clinical results of endoscopic plantar fascia release (EPFR) using a suprafascial approach for recalcitrant plantar fasciitis. METHODS: Twenty-four feet of twenty-three patients who underwent EPFR using a suprafascial approach were followed up for more than 2 years using the American Orthopedic Foot and Ankle Society (AOFAS) score. The AOFAS score at final follow-up was compared between patients who participated in athletic activity (group A) and those who were sedentary (group S) and between those with and those without calcaneal spur (group with CS and group without CS, respectively). The ability of patients to return to athletic activity, and if so, the time interval between surgery and return to athletic activity, were investigated in group A. Complications were recorded. RESULTS: The median follow up duration was 48 months. The mean AOFAS score in all patients increased significantly between before surgery and final follow-up (P < 0.001). The mean score in group A at final follow-up was significantly higher than that in group S (P < 0.05). However, there was no significant difference in the mean score at final follow-up between the groups with and without CS. In group A, all patients could return to athletic activity after a median 8 weeks. Injury to the first branch of the lateral plantar nerve occurred in three feet. CONCLUSION: EPFR using a suprafascial approach was effective for recalcitrant plantar fasciitis. However, the prognosis of sedentary patients was inferior to that of patients engaged in athletic activity. LEVEL OF EVIDENCE: IV. PMID- 29032484 TI - Young athletes return too early to knee-strenuous sport, without acceptable knee function after anterior cruciate ligament reconstruction. AB - PURPOSE: The purpose of this study was to evaluate the return to knee-strenuous sport rate, muscle function and subjective knee function among adolescent patients (15-20 years of age) and adult patients (21-30 years of age) 8 and 12 months, respectively, after anterior cruciate ligament (ACL) reconstruction. It was hypothesised that no differences in outcome would be found between age groups at 8 or 12 months after ACL reconstruction. METHODS: Cross-sectional data from five tests of muscle function, from the Knee injury and Osteoarthritis Outcome Score (KOOS) and the Tegner Activity Scale (Tegner), performed at 8 and 12 months after a primary ACL reconstruction, were extracted from a rehabilitation outcome register. A total of 270 (51% women) athletes, aged 15-30 years, who were all involved in knee-strenuous sport prior the injury, were included at 8 months after ACL reconstruction. At 12 months 203 (51% women) were included. The return to knee-strenuous-sport rates and the rate of achieving a limb symmetry index of >= 90% in all five tests of muscle function, defined as recovery of muscle function, and subjective knee function scores, as measured with the KOOS, were compared between age groups. RESULTS: The adolescent patients had a higher (50%) return to knee-strenuous sport rate compared with the adult patients (38%) 8 months after ACL reconstruction (p = 0.04). At the 12-month follow-up, no difference was found between the age groups; 74 and 63%, respectively. At the 8 month follow-up, 29% of the patients, in both age groups, who had returned to sport had recovered their muscle function in all five tests of muscle function. At the 12-month follow-up, the corresponding results were 20% for the adolescents and 28% for the adult patients. No difference in mean KOOS scores was found between the age groups at 8 or at 12 months after ACL reconstruction. CONCLUSION: The majority of young athletes make an early return to knee-strenuous sport after a primary ACL reconstruction, without recovering their muscle function. To set realistic expectations, clinicians are recommended to ensure that young athletes receive information about not to return before muscle function is recovered and that this may take longer time than 12 months. LEVEL OF EVIDENCE: II. PMID- 29032486 TI - Population Pharmacokinetics of Subcutaneous Pasireotide in Healthy Volunteers and Cushing's Disease Patients. AB - BACKGROUND AND OBJECTIVE: Pasireotide (SOM230, Signifor(r)) is a somatostatin analog approved in a subcutaneous formulation for the treatment of Cushing's disease. This analysis characterizes the population pharmacokinetics (PopPK) of subcutaneous pasireotide jointly in healthy volunteers (HVs) and Cushing's disease patients (CDPs), evaluating the effects of age, body size, and population on pasireotide pharmacokinetics. METHODS: The analysis dataset included five phase I studies and one each from phase II and phase III. A three-compartment, linear structural pharmacokinetic model was used. Models were specified a priori that varied in the relationship between HVs and CDPs, and the model with the lowest value of the Bayes Information Criterion (BIC) was selected. It was then used to illustrate various features of pasireotide pharmacokinetics. RESULTS AND CONCLUSIONS: In the final model, the estimated values of apparent clearance (CL/F), central volume of distribution, and deep peripheral volume of distribution of pasireotide in CDP were 59, 43, and 225% those of HVs at the same age and body size. Clearance increased with body size and decreased with age similarly for CDPs and HVs. The estimated CL/F for a typical CDP (40 years old, lean body weight [LBW] 49 kg) was 3.72 L/h, and for a typical HV (29 years old, LBW 61 kg) was 7.96 L/h. The model was judged adequate by visual predictive checks and diagnostic plots separately for HVs and CDPs and can be used for simulations for deriving exposure-response metrics for pharmacokinetic/pharmacodynamic analyses. PMID- 29032487 TI - Pathological and therapeutic roles of innate lymphoid cells in diverse diseases. AB - Innate lymphoid cells (ILCs) are a recently defined type of innate-immunity cells that belong to the lymphoid lineage and have lymphoid morphology but do not express an antigen-specific B cell or T-cell receptor. ILCs regulate immune functions prior to the formation of adaptive immunity and exert effector functions through a cytokine release. ILCs have been classified into three groups according to the transcription factors that regulate their development and function and the effector cytokines they produce. Of note, ILCs resemble T helper (Th) cells, such as Th1, Th2, and Th17 cells, and show a similar dependence on transcription factors and distinct cytokine production. Despite their short history in immunology, ILCs have received much attention, and numerous studies have revealed biological functions of ILCs including host defense against pathogens, inflammation, tissue repair, and metabolic homeostasis. Here, we describe recent findings about the roles of ILCs in the pathogenesis of various diseases and potential therapeutic targets. PMID- 29032488 TI - How Do Individuals Develop Alcohol Use Disorder After Bariatric Surgery? A Grounded Theory Exploration. AB - BACKGROUND: Bariatric surgery is the most effective treatment for severe obesity. However, following Roux-en-Y gastric bypass (RYGB) surgery, a small minority of patients develop new-onset alcohol use disorder (AUD), the aetiology of which is poorly understood. AIM: The aim is to construct a theory to explain the development of AUD among a sample of individuals who reported problematic drinking following RYGB. METHOD: Semi-structured interviews were conducted with eight RYGB patients diagnosed with AUD attending a multi-disciplinary outpatient weight management service at a public hospital in the Republic of Ireland. A constructivist grounded theory methodology was used to analyse interview transcripts. RESULTS: Participants' main concern was identified as 'unresolved psychological issues' which were managed by 'external coping mechanisms', namely, 'eating to cope'. After RYGB, comfort eating was no longer possible to the same extent. Following a 'honeymoon period', participants' need for an external coping mechanism resurfaced. 'Filling the void' provides a framework to explain how participants managed the symptoms of their unresolved psychological issues through 'behavioural substitution', that is, drinking alcohol instead of eating. CONCLUSION: The theoretical framework of 'filling the void' adds to contemporary research that conceptualises AUD behavioural substitution as 'addiction transfer' by describing the process by which the phenomenon occurs as well as the characteristics of participants. The clinical implication of this research is to advocate for a reshaping of treatment of RYGB patients, with increased psychological input following surgery. PMID- 29032489 TI - Away from the Islands: Diaspora's Effects on Native Hawaiian Elders and Families in California. AB - Native Hawaiians, the indigenous people of Hawai'i, were once a healthy and hardy people. But today they are affected by varying social and health disparities that have led to poor social and health outcomes. Most of the research on Hawaiians in general and Native Hawaiian elders in particular has been conducted in Hawai'i, even though the Hawaiian Diaspora has resulted in 45% of this population residing in North America and Alaska. This qualitative study used key informant interviews and focus group methods to examine reasons for migration and perspectives on aging and caregiving in a sample of Native Hawaiian elders and family caregivers residing in Southern California. Findings identified three general themes: discrimination was a factor in their migration from Hawai'i; similarly to non Hawaiians, they are concerned about challenges associated with aging and caregiving; and Native Hawaiian cultural traditions and values continue to shape their caregiving and service preferences. PMID- 29032490 TI - Myeloid-Derived Suppressor Cells in the Tumor Microenvironment: Current Knowledge and Future Perspectives. AB - The current knowledge on tumor-infiltrating myeloid-derived suppressor cells (MDSCs) is based mainly on the extensive work performed in murine models. Data obtained for human counterparts are generated on the basis of tumor analysis from patient samples. Both sources of information led to determination of the main suppressive mechanisms used by these cell subsets in tumor-bearing hosts. As a result of the identification of protein targets responsible for MDSCs suppressive activity, different therapeutics agents have been used to eliminate/reduce their adverse effect. In the present work, we review the current knowledge on suppressive mechanisms of MDSCs and therapeutic treatments that interfere with their differentiation, expansion or activity. Based on the accumulation of new evidences supporting their importance for tumor progression and metastasis, the interest in these cell types is increasing. We revise the methods of MDSC generation/differentiation ex vivo that may help in overcoming problems associated with limited numbers of cells available from animals and patients for their study. PMID- 29032491 TI - Volatiles Emitted by Calling Males of Burying Beetles and Ptomascopus morio (Coleoptera: Silphidae: Nicrophorinae) Are Biogenetically Related. AB - In burying beetles, Nicrophorus spp. (Coleoptera: Silphidae: Nicrophorinae) mate finding is mediated by male produced volatile compounds. To date, pheromone components of only two species have been identified. In an attempt to better understand the evolution of male pheromone signaling in burying beetles, we investigated the male released volatiles of ten Nicrophorus species and one closely related nicrophorine species, Ptomascopus mori. Volatiles emitted by calling males were collected in the laboratory by means of solid phase micro extraction and analyzed using gas chromatography coupled with mass spectrometry. Identified volatiles included short chain esters of 4-methylcarboxylic acids, terpenoids, and some other aliphatic compounds. The long-range volatile signals of the burying beetle species included in this study are blends of two to seven components. We found that methyl or ethyl esters of 4-methylheptanoic acid and 4 methyloctanoic acid are produced by eight of the ten investigated Nicrophorus species. These esters may play a key role in chemical communication. Their widespread occurrence suggests that these compounds did not evolve recently, but appeared relatively early in the phylogeny of the genus. Although Ptomascopus is considered the sister genus of Nicrophorus, P. morio males do not produce any of the Nicrophorus compounds, but release 3-methylalkan-2-ones, which are absent in Nicrophorus. A better understanding of the evolution of burying beetle pheromones, however, will only be possible once more species have been studied. PMID- 29032492 TI - Stent unzipping using an ultra-high-pressure balloon: in vitro and animal experiments. AB - As a child grows, limitations to the maximum dilatable stent diameter (MDD) will result in stenosis associated with size mismatch. If an implanted stent can be intentionally fractured along its length, a process called "unzipping," it may eventually be redilated to adult vessel size. Few studies have addressed how a stent can be unzipped using an ultra-high-pressure balloon (UHB) with the smallest balloon diameter. Eleven commercially available stents, three Liberte stents (LS), six genesis renal stents (GS), and two express vascular SD stents (ES), were tested for in vitro unzipping. In addition, using eight stents, we investigated whether a balloon that had unzipped the stent in vitro would work similarly in the vessel of a pig. Finally, we assessed the histological influence of the unzipped stent on the surrounding tissue. In a bench test, LS, GS, and ES were consistently unzipped by a balloon whose diameter was >= 1.5, 2.18, and 1.66 times that of MDD, respectively. In animal experiments, LS, GS, and ES were predictably unzipped with balloons of 1.50, 1.81, and 1.66 times the MDD, respectively. After unzipping, the unzipped strut did not damage the surrounding tissue histologically. Use of a UHB enabled unzipping of the stent with a balloon diameter less than two times the MDD enables implantation of a larger stent in the unzipped small stent by incremental steps. PMID- 29032493 TI - Disease-Modifying Therapies for Multiple Sclerosis: A Systematic Literature Review of Cost-Effectiveness Studies. AB - INTRODUCTION AND OBJECTIVE: Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system. MS is considered incurable; however, disease treatment has advanced significantly over the past several decades with the introduction of disease-modifying therapies (DMTs). The current study reviewed the cost-effectiveness analyses of DMTs in relapsing-remitting MS (RRMS) patients. METHODS: A systematic literature search of bibliographic databases was conducted to identify economic evaluations published after 2007. The relevant population, intervention, comparators, outcomes, and study design (PICOS) were considered. The outcomes of interest were incremental cost-effectiveness ratios (ICERs), net monetary benefits, incremental benefits, and incremental costs. The Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement was used to assess the reporting quality of published studies. RESULTS: A total of 1370 potentially relevant citations were identified, of which 33 published articles and four Health Technology Assessment (HTA) reports prepared for the UK were included in the final analysis. Almost all studies were based on a health economic model and considered RRMS as the phase of disease at study entry. The studies were conducted in 10 different countries, with approximately 50% based in the US. Study outcomes were rarely comparable due to the different settings, input data, and assumptions. Even within the same country, the discrepancy between study criteria was considerable. The compliance with reporting standards of the CHEERS statement was generally high. CONCLUSIONS: Internationally, a large number of health economic assessments of DMTs in RRMS were available, yielding difficult to compare, and at times conflicting, results. PMID- 29032494 TI - The effects of add-on exenatide to insulin on glycemic variability and hypoglycemia in patients with type 1 diabetes mellitus. AB - OBJECTIVE: To investigate the effect of add-on exenatide to insulin on glycemic excursion and the counter-regulatory hormone in response to hypoglycemia in patients with type 1 diabetes mellitus (T1DM). METHODS: 30 patients with T1DM were recruited and randomly assigned to exenatide + insulin-treated group (group 1, n = 15) or insulin-only-treated group (group 2, n = 15) for 4 weeks. All patients had continuous glucose monitor system (CGMS) applied at before (week-0) and after (week-4) treatment to evaluate the glycemic variability. All patients had an arginine-stimulated test at before and after treatment. Six patients from each group also had hypoglycemic clamp test to assess counter-regulatory hormone level. RESULTS: Patients in the exenatide group had significant reductions in body weight, body mass index (BMI), total insulin dose, bolus insulin dose, fructosamine, and glycemic excursion after 4 weeks' treatment. Compared with patients in group 2, the mean amplitude of glycemic excursion (MAGE) and coefficient of variation (CV) of exenatide group decreased significantly. Similarly, a significant decrease of glucagon (GLC) in the arginine-stimulated test was found in group 1. No significant changes of GLC, growth hormone (GH), cortisol (COR), epinephrine (E), and norepinephrine (NE) were found in both groups during hypoglycemia clamp test. However, patients who had residual islet function in group 1 showed an upward trend of basic C-peptide (C-P) and GLC during the hypoglycemia period. CONCLUSION: Although exenatide could inhibit glucagon secretion during euglycemia or hyperglycemia in patients with T1DM, it has no effect on GLC and counter-regulatory hormones during hypoglycemia clamp in patients with no functional residual islet test. PMID- 29032496 TI - School Practices to Foster LGBT-Supportive Climate: Associations with Adolescent Bullying Involvement. AB - Lesbian, gay, bisexual, and transgender (LGBT) youth experience disproportionate rates of bullying compared to their heterosexual peers. Schools are well positioned to address these disparities by creating supportive school climates for LGBT youth, but more research is needed to examine the variety of practices and professional development opportunities put in place to this end. The current study examines how school practices to create supportive LGBT student climate relate to student reports of bullying. Student-level data come from the 2013 Minnesota Student Survey, a state-wide survey of risk and protective factors. Ninth and eleventh grade students (N = 31,183) reported on frequency of physical and relational bullying victimization and perpetration and sexual orientation based harassment. School administrators reported on six practices related to creating supportive LGBT school climate (N = 103 schools): having a point person for LGBT student issues, displaying sexual orientation-specific content, having a gay-straight alliance, discussing bullying based on sexual orientation, and providing professional development around LGBT inclusion and LGBT student issues. An index was created to indicate how many practices each school used (M = 2.45; SD = 1.76). Multilevel logistic regressions indicated that students attending schools with more supportive LGBT climates reported lower odds of relational bullying victimization, physical bullying perpetration, and sexual orientation based harassment compared to students in schools with less supportive LGBT climates. Sexual orientation did not moderate these relations, indicating that LGBT-supportive practices may be protective for all students, regardless of their sexual orientation. Findings support school-wide efforts to create supportive climates for LGBQ youth as part of a larger bullying prevention strategy. PMID- 29032495 TI - Laparoscopic versus open umbilical or paraumbilical hernia repair: a systematic review and meta-analysis. AB - OBJECTIVES: To compare outcomes of laparoscopic repair to open repair of umbilical and paraumbilical hernias. METHODS: We performed a systematic review in accordance with Preferred Reporting Items for Systematic Reviews and Meta Analyses statement standards. The review protocol was registered with International Prospective Register of Systematic Reviews (Registration Number: CRD42016052131). We conducted a search of electronic information sources, including MEDLINE; EMBASE; CINAHL; the Cochrane Central Register of Controlled Trials (CENTRAL); the World Health Organization International Clinical Trials Registry; ClinicalTrials.gov; and ISRCTN Register, and bibliographic reference lists to identify all randomised controlled trials (RCTs) and observational studies comparing outcomes of laparoscopic repair to open repair of umbilical and paraumbilical hernias. We used the Cochrane risk of bias tool and the Newcastle Ottawa scale to assess the risk of bias of RCTs and observational studies, respectively. Random effects models were applied to calculate pooled outcome data. RESULTS: We identified three RCTs and seven retrospective cohort studies, enrolling a total of 16,549 patients. Our analyses indicated that open repair was associated with a higher risk of wound infection [Odds ratio (OR) 2.35, 95% CI 1.23-4.48, P = 0.010], wound dehiscence (OR 4.99, 95% CI 1.12-22.28, P = 0.04) and recurrence (OR 4.06, 95% CI 1.54-10.71, P = 0.005), longer length of hospital stay (MD 26.85, 95% CI 8.15-45.55, P = 0.005) and shorter operative time [Mean difference (MD) - 23.07, 95% CI - 36.78 to - 9.35, P = 0.0010] compared to laparoscopic repair. There was no difference in the risk of haematoma (OR 2.03, 95% CI 0.22-18.73, P = 0.53) or seroma (OR 0.67, 95% CI 0.19-2.32, P = 0.53) between the two groups. CONCLUSIONS: The best available evidence (randomised and non-randomised studies) suggests that laparoscopic repair of umbilical or paraumbilical hernias may be associated with a lower risk of wound infection, wound dehiscence and recurrence rate, shorter length of stay but longer operative time. Results from a limited number of RCTs showed no difference in recurrence rates. The quality of the best available evidence is moderate, and selection bias is the major concern due to non-randomised design in most of the available studies. Therefore, considering the level of available evidence, the most reliable approach for repair of umbilical or paraumbilical hernia should be based on surgeon's experience, clinical setting, patient's age and size, hernia defect size and anatomical characteristics. High quality RCTs are required. PMID- 29032497 TI - Emerging mosquito species in Germany-a synopsis after 6 years of mosquito monitoring (2011-2016). AB - Globalisation and climate change are the main drivers of invasion of non-endemic regions by mosquitoes. Mass transportation of people, animals and goods facilitate accidental long-distance displacement while climate warming supports active spread and establishment of thermophilic species. In the framework of a mosquito-monitoring programme, eight non-indigenous culicid species have been registered in Germany since 2011, with four of them being more or less efficient vectors of disease agents and another four now considered established. The eight newly emerged species include Aedes albopictus, Ae. japonicus, Ae. aegypti, Ae. koreicus, Ae. berlandi, Ae. pulcritarsis, Anopheles petragnani and Culiseta longiareolata. We here review recent findings and at the same time present new findings of specimens of non-native mosquito species in Germany. PMID- 29032498 TI - Morphological and molecular description of Myxobolus batalhensis n. sp. (Myxozoa, Myxosporea), a liver and ovary parasite of Salminus hilarii in Brazil. AB - Plasmodia containing myxospores belonging to the genus Myxobolus Butschli, 1882 were found in the ovaries and liver of Salminus hilarii. Despite its economic value, this fish host has no previous reports of myxozoan infections. Herein, we describe Myxobolus batalhensis n. sp. using morphological and ultrastructural data, as well as histological and SSU rDNA molecular data. The mature myxospores were elongated, measuring in average 15.2 +/- 0.8 MUm in length, 8.4 +/- 0.4 MUm in width, and 5.1 +/- 0.2 MUm in thickness. Polar capsules were elongated and measured 5.3 +/- 0.3 MUm in length and 2.8 +/- 0.3 MUm in width. Polar filaments had 6-9 coils. Histopathological analysis showed coagulation necrosis associated with cell lysis as a response of the host cell to the parasite in the ovaries. No inflammatory reaction was observed in the liver, although the presence of the plasmodia caused changes in tissue structure. The phylogenetic analysis of South American myxobolid species showed M. batalhensis n. sp. as sister species of Myxobolus aureus. This is the first report of a myxozoan species parasitizing S. hilarii and the first myxozoan species described in the Batalha river. PMID- 29032499 TI - DNA barcoding for molecular identification of Demodex based on mitochondrial genes. AB - There has been no widely accepted DNA barcode for species identification of Demodex. In this study, we attempted to solve this issue. First, mitochondrial cox1-5' and 12S gene fragments of Demodex folloculorum, D. brevis, D. canis, and D. caprae were amplified, cloned, and sequenced for the first time; intra/interspecific divergences were computed and phylogenetic trees were reconstructed. Then, divergence frequency distribution plots of those two gene fragments were drawn together with mtDNA cox1-middle region and 16S obtained in previous studies. Finally, their identification efficiency was evaluated by comparing barcoding gap. Results indicated that 12S had the higher identification efficiency. Specifically, for cox1-5' region of the four Demodex species, intraspecific divergences were less than 2.0%, and interspecific divergences were 21.1-31.0%; for 12S, intraspecific divergences were less than 1.4%, and interspecific divergences were 20.8-26.9%. The phylogenetic trees demonstrated that the four Demodex species clustered separately, and divergence frequency distribution plot showed that the largest intraspecific divergence of 12S (1.4%) was less than cox1-5' region (2.0%), cox1-middle region (3.1%), and 16S (2.8%). The barcoding gap of 12S was 19.4%, larger than cox1-5' region (19.1%), cox1 middle region (11.3%), and 16S (13.0%); the interspecific divergence span of 12S was 6.2%, smaller than cox1-5' region (10.0%), cox1-middle region (14.1%), and 16S (11.4%). Moreover, 12S has a moderate length (517 bp) for sequencing at once. Therefore, we proposed mtDNA 12S was more suitable than cox1 and 16S to be a DNA barcode for classification and identification of Demodex at lower category level. PMID- 29032500 TI - When antibiotic treatment fails. PMID- 29032501 TI - Epigenetic regulators: multifunctional proteins modulating hypoxia-inducible factor-alpha protein stability and activity. AB - The hypoxia-inducible factor (HIF) is a heterodimeric transcription factor governing a transcriptional program in response to reduced O2 availability in metazoans. It contributes to physiology and pathogenesis of many human diseases through its downstream target genes. Emerging studies have shown that the transcriptional activity of HIF is highly regulated at multiple levels and the epigenetic regulators are essential for HIF-mediated transactivation. In this review, we will discuss the comprehensive regulation of HIF transcriptional activity by different types of epigenetic regulators. PMID- 29032505 TI - Impaired chemosensory control of breathing after depletion of bulbospinal catecholaminergic neurons in rats. AB - Bulbospinal catecholaminergic neurons located in the rostral aspect of the ventrolateral medulla (C1 neurons) or within the ventrolateral pons (A5 neurons) are involved in the regulation of blood pressure and sympathetic outflow. A stimulus that commonly activates the C1 or A5 neurons is hypoxia, which is also involved in breathing activation. Although pharmacological and optogenetic evidence suggests that catecholaminergic neurons also regulate breathing, a specific contribution of the bulbospinal neurons to respiratory control has not been demonstrated. Therefore, in the present study, we evaluated whether the loss of bulbospinal catecholaminergic C1 and A5 cells affects cardiorespiratory control during resting, hypoxic (8% O2), and hypercapnic (7% CO2) conditions in unanesthetized rats. Thoracic spinal cord (T4-T8) injections of the immunotoxin anti-dopamine beta-hydroxylase-saporin (anti-DbetaH-SAP-2.4 ng/100 nl) and the retrograde tracer Fluor-Gold or ventrolateral pontine injections of 6-OHDA were performed in adult male Wistar rats (250-280 g, N = 7-9/group). Anti-DbetaH-SAP or 6-OHDA eliminated most bulbospinal C1 and A5 neurons or A5 neurons, respectively. Serotonergic neurons and astrocytes were spared. Depletion of the bulbospinal catecholaminergic cells did not change cardiorespiratory variables under resting condition, but it did affect the response to hypoxia and hypercapnia. Specifically, the increase in the ventilation, the number of sighs, and the tachycardia were reduced, but the MAP increased during hypoxia in anti DbetaH-SAP-treated rats. Our data reveal that the bulbospinal catecholaminergic neurons (A5 and C1) facilitate the ventilatory reflex to hypoxia and hypercapnia. PMID- 29032502 TI - Gut microbiota changes in the extreme decades of human life: a focus on centenarians. AB - The gut microbiota (GM) is a complex, evolutionarily molded ecological system, which contributes to a variety of physiological functions. The GM is highly dynamic, being sensitive to environmental stimuli, and its composition changes over the host's entire lifespan. However, the basic question of how much these changes may be ascribed to variables such as population, diet, genetics and gender, and/or to the aging process per se is still largely unanswered. We argue that comparison among studies on centenarians-the best model of healthy aging and longevity-recruited from different geographical areas/populations (different genetics and dietary habits) can help to disentangle the contribution of aging and non-aging-related variables to GM remodeling with age. The current review focuses on the role of population, gender and host genetics as possible drivers of GM modification along the human aging process. The feedback impact of age associated GM variation on the GM-brain axis and GM metabolomics is also discussed. We likewise address the role of GM in neurodegenerative diseases such as Parkinson's and Alzheimer's, and its possible therapeutic use, taking advantage of the fact that centenarians are characterized by an extreme (healthy) phenotype versus patients suffering from age-related pathologies. Finally, it is argued that longitudinal studies combining metagenomics sequencing and in-depth phylogenetic analysis with a comprehensive phenotypic characterization of centenarians and patients using up-to-date omics (metabolomics, transcriptomics and meta-transcriptomics) are urgently needed. PMID- 29032504 TI - Resistance exercise improves cardiac function and mitochondrial efficiency in diabetic rat hearts. AB - Metabolic disturbance and mitochondrial dysfunction are a hallmark of diabetic cardiomyopathy (DC). Resistance exercise (RE) not only enhances the condition of healthy individuals but could also improve the status of those with disease. However, the beneficial effects of RE in the prevention of DC and mitochondrial dysfunction are uncertain. Therefore, this study investigated whether RE attenuates DC by improving mitochondrial function using an in vivo rat model of diabetes. Fourteen Otsuka Long-Evans Tokushima Fatty rats were assigned to sedentary control (SC, n = 7) and RE (n = 7) groups at 28 weeks of age. Long Evans Tokushima Otsuka rats were used as the non-diabetic control. The RE rats were trained by 20 repetitions of climbing a ladder 5 days per week. RE rats exhibited higher glucose uptake and lower lipid profiles, indicating changes in energy metabolism. RE rats significantly increased the ejection fraction and fractional shortening compared with the SC rats. Isolated mitochondria in RE rats showed increase in mitochondrial numbers, which were accompanied by higher expression of mitochondrial biogenesis proteins such as proliferator-activated receptor-gamma coactivator-1alpha and TFAM. Moreover, RE rats reduced proton leakage and reactive oxygen species production, with higher membrane potential. These results were accompanied by higher superoxide dismutase 2 and lower uncoupling protein 2 (UCP2) and UCP3 levels in RE rats. These data suggest that RE is effective at ameliorating DC by improving mitochondrial function, which may contribute to the maintenance of diabetic cardiac contractility. PMID- 29032506 TI - Differential effects of AMP-activated protein kinase in isolated rat atria subjected to simulated ischemia-reperfusion depending on the energetic substrates available. AB - AMP-activated protein kinase (AMPK) is a serine-threonine kinase that functions primarily as a metabolic sensor to coordinate anabolic and catabolic processes in the cell, via phosphorylation of multiple proteins involved in metabolic pathways, aimed to re-establish energy homeostasis at a cell-autonomous level. Myocardial ischemia and reperfusion represents a metabolic stress situation for myocytes. Whether AMPK plays a critical role in the metabolic and functional responses involved in these conditions remains uncertain. In this study, in order to gain a deeper insight into the role of endogenous AMPK activation during myocardial ischemia and reperfusion, we explored the effects of the pharmacological inhibition of AMPK on contractile function rat, contractile reserve, tissue lactate production, tissue ATP content, and cellular viability. For this aim, isolated atria subjected to simulated 75 min ischemia-75 min reperfusion (Is-Rs) in the presence or absence of the pharmacological inhibitor of AMPK (compound C) were used. Since in most clinical situations of ischemia reperfusion the heart is exposed to high levels of fatty acids, the influence of palmitate present in the incubation medium was also investigated. The present results suggest that AMPK activity significantly increases during Is, remaining activated during Rs. The results support that intrinsic activation of AMPK has functional protective effects in the reperfused atria when glucose is the only available energetic substrate whereas it is deleterious when palmitate is also available. Cellular viability was not affected by either of these conditions. PMID- 29032507 TI - A novel lab-on-a-chip platform for spheroid metabolism monitoring. AB - Sensor-based cellular microphysiometry is a technique that allows non-invasive, label-free, real-time monitoring of living cells that can greatly improve the predictability of toxicology testing by removing the influence of biochemical labels. In this work, the Intelligent Mobile Lab for In Vitro Diagnostics (IMOLA IVD) was utilized to perform cellular microphysiometry on 3D multicellular spheroids. Using a commercial 3D printer, 3 * 3 microwell arrays were fabricated to maintain nine previously cultured HepG2 spheroids on a single BioChip. Integrated layers above and under the spheroids allowed fluidic contact between spheroids in microwells and BioChip sensors while preventing wash out from medium perfusion. Spheroid culturing protocols were optimized to grow spheroids to a diameter of around 620 MUm prior to transfer onto BioChips. An ON/OFF pump cycling protocol was developed to optimize spheroid culture within the designed microwells, intermittently perfuse spheroids with fresh culture medium, and measure the extracellular acidification rate (EAR) and oxygen uptake rate (OUR) with the BioChips of the IMOLA-IVD platform. In a proof-of-concept experiment, spheroids were perfused for 36 h with cell culture medium before being exposed to medium with 1% sodium dodecyl sulphate (SDS) to lyse cells as a positive control. These microphysiometry studies revealed a repeatable pattern of extracellular acidification throughout the experiment, indicating the ability to monitor real time metabolic activity of spheroids embedded in the newly designed tissue encapsulation. After perfusion for 36 h with medium, SDS exposure resulted in an instant decrease in EAR and OUR signals from 37 mV/h (+/- 5) to 8 mV/h (+/- 8) and from 308 mV/h (+/- 21) to -2 mV/h (+/- 13), respectively. The presented spheroid monitoring system holds great potential as a method to automate screening and analysis of pharmaceutical agents using 3D multicellular spheroid models. PMID- 29032503 TI - CD4 and CD8 T lymphocyte interplay in controlling tumor growth. AB - The outstanding clinical success of immune checkpoint blockade has revived the interest in underlying mechanisms of the immune system that are capable of eliminating tumors even in advanced stages. In this scenario, CD4 and CD8 T cell responses are part of the cancer immune cycle and both populations significantly influence the clinical outcome. In general, the immune system has evolved several mechanisms to protect the host against cancer. Each of them has to be undermined or evaded during cancer development to enable tumor outgrowth. In this review, we give an overview of T lymphocyte-driven control of tumor growth and discuss the involved tumor-suppressive mechanisms of the immune system, such as senescence surveillance, cancer immunosurveillance, and cancer immunoediting with respect to recent clinical developments of immunotherapies. The main focus is on the currently existing knowledge about the CD4 and CD8 T lymphocyte interplay that mediates the control of tumor growth. PMID- 29032509 TI - Systemic trichosporonosis mimicking disseminated varicella zoster viral infection during blinatumomab therapy. PMID- 29032508 TI - Development and characterization of 2-dimensional culture for buffalo intestinal cells. AB - Small intestinal epithelial cells (IEC) play a major role in the absorption of nutrients and toxins. Due to the similarity of genome-wide single copy protein orthologues between cattle and human, establishment of ruminant's primary small IEC culture could be a valuable tool for toxicity studies. Therefore, the current study focused on the development and characterization of buffalo IEC culture, as cattle slaughter is banned in India. The buffalo jejunum fragments were washed consecutively several times in saline, warm phosphate buffered saline (PBS), PBS with 5 mM dithiothreitol, digesting solution and 2% sorbitol in PBS. The cells were cultured on 17 ug/cm2 collagen coated plates and transwell plates with serum (2% Fetal bovine serum (FBS) and 10% FBS) and serum-free culture conditions. The cells were differentiated into typical epithelial cobblestone morphology from day 5 onwards in 50% successful cultures. The cultured IEC were characterized by gene expression of epithelial cell markers, cytokeratin and vimentin, and enterocyte markers like villin, zonula occluden (ZO1), fatty acid binding protein 2 (FABP2) and small intestinal peptidase (IP). Based on the morphology and gene expression profile, 10% FBS has been recommended for culturing primary buffalo IEC on collagen coated plates for 10 days. However, 50% of the successful cultures could not show epithelial phenotype on 10% FBS culture conditions even on collagen coated plates. Interestingly, undifferentiated IEC showed an increasing expression of FABP2, IP and ZO1 transcripts compared to differentiated intestinal cells with 10% FBS on collagen plates. Therefore, future studies are needed to understand the role of FABP2, IP and ZO1 in differentiation of buffalo IEC. PMID- 29032510 TI - Current prognostic and predictive factors in follicular lymphoma. AB - Follicular lymphoma (FL) is generally considered an indolent disorder. With modern day treatments, long remissions are often achieved both in the front-line and relapsed setting. However, a subset of patients has a more aggressive course and a worse outcome. Their identification is the main purpose of modern day prognostic tools. In this review, we attempt to summarize the evidence concerning prognostic and predictive factors in FL, including (1) pre-treatment factors, from baseline clinical characteristics and imaging tests to histological grade, the microenvironment and genomic abnormalities; (2) post-treatment factors, i.e., depth of response, measured both by imaging tests and minimal residual disease; (3) factors at relapse and duration of response; and (4) prognostic factors in histological transformation. We conclude that, despite the existence of numerous tools, the availability of some of them is still limited; they generally suffer from notable downsides, and most have unproven predictive value, thus having scarce bearing on the choice of regimen at present. However, with the technological and scientific developments of the last few years, the potential for these prognostic factors is promising, particularly in combination, which will probably, in time, help guide therapeutic decisions. PMID- 29032511 TI - Soma Detection in 3D Images of Neurons using Machine Learning Technique. AB - Computing and analyzing the neuronal structure is essential to studying connectome. Two important tasks for such analysis are finding the soma and constructing the neuronal structure. Finding the soma is considered more important because it is required for some neuron tracing algorithms. We describe a robust automatic soma detection method developed based on the machine learning technique. Images of neurons were three-dimensional confocal microscopic images in the FlyCircuit database. The testing data were randomly selected raw images that contained noises and partial neuronal structures. The number of somas in the images was not known in advance. Our method tries to identify all the somas in the images. Experimental results showed that the method is efficient and robust. PMID- 29032513 TI - Sudden blast phase in chronic myeloid leukemia developed during nilotinib therapy after major molecular response was achieved. AB - Sudden blast phase (SBP) is a rare event in which patients with chronic myeloid leukemia (CML) in complete cytogenetic response (CCyR) rapidly progress to the blast phase. Few patients on second-generation tyrosine kinase inhibitors (2nd TKIs) have been reported to develop SBP. Here, we report a 45-year-old man diagnosed with CML in the chronic phase in April 2008 and immediately started on imatinib therapy. He achieved CCyR 12 months after starting imatinib therapy. Imatinib was followed by treatment with the 2nd TKIs nilotinib and dasatinib from January 2011 to yield a better response. He achieved major molecular response (MMR) during dasatinib therapy in February 2012, but did not tolerate dasatinib well; hence, he was switched to nilotinib in July 2012. In December 2015, he presented at our hospital with fever and lumbago. A complete blood count revealed a white blood cell count of 30,500/uL with 60% blasts, leading to diagnosis of SBP. After dasatinib therapy and conventional chemotherapy, he again achieved MMR. This case demonstrates that SBP may occur after achieving MMR on treatment with 2nd TKIs. Continuous careful monitoring is required for the early detection of SBP, even in patients who have achieved MMR. PMID- 29032512 TI - IL-33 signalling in liver immune cells enhances drug-induced liver injury and inflammation. AB - OBJECTIVE AND DESIGN: The aim of this study was to investigate the contribution of IL-33/ST2 axis in the onset and progression of acute liver injury using a mice model of drug-induced liver injury (DILI). MATERIAL AND TREATMENTS: DILI was induced by overdose administration of acetaminophen (APAP) by oral gavage in wild type BALB/c, ST2-deficient mice and in different bone marrow chimeras. Neutrophils were depleted by anti-Ly6G and macrophages with clodronate liposomes (CLL). METHODS: Blood and liver were collected for biochemical, immunologic and genetic analyses. Mice were imaged by confocal intravital microscopy and liver non-parenchymal cells and hepatocytes were isolated for flow cytometry, genetic and immunofluorescence studies. RESULTS: Acetaminophen overdose caused a massive necrosis and accumulation of immune cells within the liver, concomitantly with IL 33 and chemokine release. Liver non-parenchymal cells were the major sensors for IL-33, and amongst them, neutrophils were the major players in amplification of the inflammatory response triggered by IL-33/ST2 signalling pathway. CONCLUSION: Blockage of IL-33/ST2 axis reduces APAP-mediated organ injury by dampening liver chemokine release and activation of resident and infiltrating liver non parenchymal cells. PMID- 29032514 TI - Surface roughness and bacterial adhesion on root dentin treated with diode laser and conventional desensitizing agents. AB - The treatments for dentin hypersensitivity (DH) may change the surface roughness of the root dentin, which can lead to biofilm accumulation, increasing the risk of root caries. The aim was to compare the surface roughness of root dentin after different treatments of DH and the biofilm formation on those surfaces. After initial surface roughness (Sa) assessment, 50 bovine root fragments received the following treatments (n = 10): G 1-no treatment; G2-5% sodium fluoride varnish; G3-professional application of a desensitizing dentifrice; G4-toothbrushing with a desensitizing dentifrice; and G5-diode laser application (908 nm; 1.5 W, 20 s). The Sa was reevaluated after treatments. Afterward, all samples were incubated in a suspension of Streptococcus mutans at 37 degrees C for 24 h. The colony forming units (CFU) were counted using a stereoscope, and the results were expressed in CFU/mL. The one-way ANOVA and the Tukey's tests compared the roughness data and the results obtained on the bacterial adhesion test (alpha = 5%). G2 (2.3 +/- 1.67%) showed similar Sa variation than G1 (0.25 +/- 0.41%) and G5 (5.69 +/- 0.99%), but different from group G3 (9.05 +/- 2.39%). Group 4 showed the highest Sa variation (30.02 +/- 3.83%; p < 0.05). Bacterial adhesion was higher in G4 (2208 +/- 211.9), suggesting that bacterial growth is greater on rougher surfaces. The diode laser and the conventional treatments for DH may change the surface roughness of the root dentin, but only brushing with desensitizing dentifrice induced a higher bacteria accumulation on root dentin surface. PMID- 29032515 TI - Oxidative Stress and Heavy Metals in Plants. AB - Oxidative stress is a pathological process related to not only animal kingdom but also plants. Regarding oxidative stress in plants, heavy metals are frequently discussed as causative stimuli with relevance to ecology. Because heavy metals have broad technological importance, they can easily contaminate the environment. Much of previous effort regarding the harmful impact of the heavy metals was given to their toxicology in the animals and humans. Their implication in plant pathogeneses is less known and remains underestimated.The current paper summarizes basic facts about heavy metals, their distribution in soil, mobility, accumulation by plants, and initiation of oxidative stress including the decline in basal metabolism. The both actual and frontier studies in the field are summarized and discussed. The major pathophysiological pathways are introduced as well and link between heavy metals toxicity and their ability to initiate an oxidative damage is provided. Mobility and bioaccessibility of the metals is also considered as key factors in their impact on oxidative stress development in the plant. The metals like lead, mercury, copper, cadmium, iron, zinc, nickel, vanadium are depicted in the text.Heavy metals appear to be significant contributors to pathological processes in the plants and oxidative stress is probably an important contributor to the effect. The most sensitive plant species are enlisted and discussed in this review. The facts presented here outline next effort to investigate pathological processes in the plants. PMID- 29032516 TI - Theoretical investigation on the water-assisted excited-state proton transfer of 7-azaindole derivatives: substituent effect. AB - A systematic study on the first excited-state proton transfer (ESPT) in 2RAI-H2O (R = OH, OCH3, CN, NO2, CHO) complexes in solution were investigated at the TD M06-2X/6-31 + G(d, p) level. The double proton transfer occurred in an asynchronous but concerted protolysis fashion no matter which substituent R was used at C2 position in pyrrole ring in the 7AI-H2O complex. The specific vibrational-mode of ESPT in the model systems was confirmed and contributed to promote the reaction rate by shortening the reaction path. The substituent effects of different groups on the ESPT thermodynamics and kinetics were discussed. It was obvious that the geometries, barrier height, asynchrony, and specific vibration-mode of excited-state proton transfer changed with the different substituent groups. Graphical Abstract The distance between two neighboring heavy atoms such as N1-O11 (R1) and O11-N8 (R2) distances played an important role in the proton transfer reaction. The sum of the N1-O11 and O11-N8 distances in the reactant of 2RAI-H2O (R=H, OH, OCH3; CN, CHO, NO2) complexes is in the range of 5.542 A~5.692 A and changes along with the substituent group at C2 position in the pyrrole ring. The ESDPT barrier height and the sum of the N1 O11 and O11-N8 distances have a good correlation. PMID- 29032517 TI - Correction to: A prospective study of corpus callosum regional volumes and neurocognitive outcomes following cranial radiation for pediatric brain tumors. AB - AbstractThe published version of this article unfortunately contained an error. Author "E. Mark Mahone" has been published incorrectly by capturing "Mark Mahone" as family name when it should only be "Mahone". Given in this article is the corrected name. PMID- 29032518 TI - Synchronous solitary calvarial yolk sac tumor metastasis as the initial presentation of mediastinal germ cell tumor. AB - INTRODUCTION: In children, malignant tumors presenting as a calvarial mass that too as initial manifestation are unusual. Also, brain metastases per se are rare in pediatric solid tumors with an incidence of just 1.5%. CASE DESCRIPTION: We present a child with calvarial metastasis which was the presenting symptom of an otherwise asymptomatic large malignant mediastinal germ cell tumor (GCT). The lesion was dural-based involving both calvaria as well as the underlying brain parenchyma. Despite such multicompartmental location, no obvious bony destruction was seen. A 12-year-old boy presented with progressively enlarging scalp swelling and features of raised intracranial pressure. The lesion was totally excised and calvarial defect reconstructed using titanium mesh. Though the preoperative chest computed tomography suggested teratoma, the histopathology of the cranial lesion was a yolk sac tumor (YST). CONCLUSION: Initial manifestation of GCT as calvarial swelling, pure YST (with no other germ cell component), and the eccentric multicompartmental (dural based) location rather than usual midline GCTs is noteworthy. The report thus highlights an atypical presentation in GCT. Although uncommon, it is worthwhile to consider metastatic GCT as a differential among calvarial lesions. PMID- 29032519 TI - NMR experiments for the rapid identification of P=O...H-X type hydrogen bonds in nucleic acids. AB - Hydrogen bonds involving the backbone phosphate groups occur with high frequency in functional RNA molecules. They are often found in well-characterized tertiary structural motifs presenting powerful probes for the rapid identification of these motifs for structure elucidation purposes. We have shown recently that stable hydrogen bonds to the phosphate backbone can in principle be detected by relatively simple NMR-experiments, providing the identity of both the donor hydrogen and the acceptor phosphorous within the same experiment (Duchardt-Ferner et al., Angew Chem Int Ed Engl 50:7927-7930, 2011). However, for imino and hydroxyl hydrogen bond donor groups rapidly exchanging with the solvent as well as amino groups broadened by conformational exchange experimental sensitivity is severely hampered by extensive line broadening. Here, we present improved methods for the rapid identification of hydrogen bonds to phosphate groups in nucleic acids by NMR. The introduction of the SOFAST technique into 1H,31P-correlation experiments as well as a BEST-HNP experiment exploiting 3hJN,P rather than 2hJH,P coupling constants enables the rapid and sensitive identification of these hydrogen bonds in RNA. The experiments are applicable for larger RNAs (up to ~ 100-nt), for donor groups influenced by conformational exchange processes such as amino groups and for hydrogen bonds with rather labile hydrogens such as 2'-OH groups as well as for moderate sample concentrations. Interestingly, the size of the through-hydrogen bond scalar coupling constants depends not only on the type of the donor group but also on the structural context. The largest coupling constants were measured for hydrogen bonds involving the imino groups of protonated cytosine nucleotides as donors. PMID- 29032520 TI - Mollib: a molecular and NMR data analysis software. AB - Mollib is a software framework for the analysis of molecular structures, properties and data with an emphasis on data collected by NMR. It uses an open source model and a plugin framework to promote community-driven development of new and enhanced features. Mollib includes tools for the automatic retrieval and caching of protein databank (PDB) structures, the hydrogenation of biomolecules, the analysis of backbone dihedral angles and hydrogen bonds, and the fitting of residual dipolar coupling (RDC) and residual anisotropic chemical shift (RACS) data. In this article, we release version 1.0 of mollib and demonstrate its application to common molecular and NMR data analyses. PMID- 29032521 TI - Learning from UJAMBO: Perspectives on Gynecologic Care in African Immigrant and Refugee Women in Boston, Massachusetts. AB - African-born immigrant women, and particularly refugees and asylum seekers, are at risk for reproductive health disparities but inadequately use relevant gynecologic services. We sought to elucidate perspectives on gynecologic care in a population of Congolese and Somali immigrants. We conducted a secondary qualitative analysis of focus group data using a grounded theory approach and the Integrated Behavioral Model as our theoretical framework. Thirty one women participated in six focus groups. Participant beliefs included the states of pregnancy and/or pain as triggers for care, preferences included having female providers and those with familiarity with female genital cutting. Barriers included stigma, lack of partner support, and lack of resources to access care. Experiential attitudes, normative beliefs, and environmental constraints significantly mediated care preferences for/barriers to gynecologic health service utilization in this population. Centering of patient perspectives to adapt delivery of gynecologic care to immigrants and refugees may improve utilization and reduce disparities. PMID- 29032522 TI - Comparative characteristic of antimicrobial resistance in geriatric hospital: a retrospective cohort study. AB - BACKGROUND AND AIMS: To examine antimicrobial resistance of commonly isolated pathogens in elderly hospitalized patients. METHODS: Data regarding all clinically significant isolates from blood and urine cultures of patients admitted to a multilevel geriatric hospital during March 2015 to April 2016 were collected. Antimicrobial susceptibility testing was performed according to Clinical and Laboratory Standard Institute guidelines. RESULTS: Escherichia coli, Proteus mirabilis, and Klebsiella pneumoniae were the most common isolates, with proportions of extended spectrum beta-lactamase positivity of 60, 40, and 61% respectively. Adjusted logistic regression models indicated that resistance of Escherichia coli to ceftriaxone [odds ratio (OR) 2.8, 95% confidence interval (CI) 1.5-5.1], ceftazidime (OR 2.8, 95% CI 1.5-5.1), ciprofloxacin (OR 2.2, 95% CI 1.2-4.0), amoxicillin/clavulanic acid (OR 2.3, 95% CI 1.2-4.3), and trimethoprim/sulfamethoxazole (OR 2.4, 95% CI 1.4-4.3) was significantly higher in skilled nursing wards than in acute geriatric wards. Resistance of Proteus mirabilis to ceftriaxone (OR 3.1, 95% CI 1.5-6.4) and Klebsiella pneumoniae to ciprofloxacin (OR 3.2, 95% CI 1.3-7.9) was significantly higher in skilled nursing wards than in acute wards. CONCLUSIONS AND DISCUSSION: Antimicrobial resistance was found to be high in a multilevel geriatric hospital, especially in skilled nursing wards. These findings call for rethinking of the empirical antimicrobial therapy and of the efforts for prevention of nosocomial infection. PMID- 29032523 TI - Thrombin generation test as a marker for high risk venous thrombosis pregnancies. AB - Pregnancy is a well-established risk factor for venous thromboembolism and is associated with a state of hypercoagulability. The use of sensitive and specific biological markers to predict risk factors for thrombosis is essential during pregnancy. Our objective was to investigate the usefulness of thrombin generation test (TGT) as a marker to predict the risk of thrombosis in high risk venous thrombosis (HRVT) pregnancies compared to normal pregnancies. This retrospective study enrolled 134 women with HRVT pregnancies, 78 of whom had monozygotic, spontaneous and untreated pregnancies and formed the study group. The control group comprised 106 women with normal pregnancies. Routine assessment of coagulation activation markers: fibrinogen, D-dimer, prothrombin fragments 1 + 2 (F1 + 2), thrombin-antithrombin complexes (TAT) and fibrin monomer complexes (FMC) was performed every 5 weeks in the study group to detect a possible pathological state of hypercoagulability. TGT was performed using platelet-free plasma, 1 and 5 pM tissue factor (TF), supplemented by phospholipids (PL) +/- thrombomodulin. Fibrinogen, D-dimer, F1 + 2, and TAT, but not FMC, increased significantly throughout pregnancy in both groups but no difference was shown between the groups. TGT showed an early increase in thrombin generation in both groups, which stabilized during the second month of pregnancy. No correlation was demonstrated between thrombin generation parameters and coagulation activation markers. Based on our results, TGT did not prove conclusive as a marker to predict the risk of thrombosis in HRVT pregnancies. Finding a sensitive and specific biological marker to predict thrombosis risk requires further investigation. PMID- 29032524 TI - Patterns and levels of platelet glycosylation in patients with coronary heart disease and type 2 diabetes mellitus. AB - Coronary heart disease (CHD) and diabetes mellitus (DM) have high reactivity of platelets and an increased risk of thrombosis. Platelet glycosylation is closely related to platelet function and survival. However, the alteration of platelet glycosylation in CHD and T2DM still remains unknown. Platelet samples were obtained from 55 healthy controls and 102 patients, including 33 CHD, 30 T2DM and 39 CHD complicated with T2DM (CHD + T2DM). Platelet glycosylation was detected using eight-lectin based assay by flow cytometry. Platelet activation markers, such as CD62P (P-Selectin) and activated integrin GPIIb/IIIa (PAC-1), were measured on resting and stimulated conditions by flow cytometry. Platelet aggregation was measured by light transmission aggregometry. In CHD group, platelet surface weakly expressed beta-Gal and 2,6-sialic acid and strongly expressed beta-GlcNAc. In T2DM group, lectins binding to platelet of beta-Gal, 2,6-sialic acid and alpha-mannose were decreased, while alpha1,6-fucose and GlcNAc were increased. There was positive correlation between ConA (specific for alpha-mannose) and PAC-1 in T2DM patients, while negative correlation in healthy controls. Patterns and levels of platelet glycosylation in CHD + T2DM group are a combination of CHD group and T2DM group, in addition to the level of ECL highly elevated (specific for beta-Gal). The level of ConA was significantly correlated with glucose in T2DM group, also correlated with HbA1c in CHD + T2DM. Our findings suggested that platelets decreased in sialylation, galactosylation and mannosylation, and increased in fucosylation and GlcNAcylation in CHD and T2DM patients. The changes of platelet glycosylation may be associated with high platelet reactivity and the increased risk of thrombosis in CHD and T2DM. PMID- 29032525 TI - Determinants of serum organochlorine pesticide and polychlorinated biphenyl levels in middle-aged Korean adults. AB - The serum levels of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were measured in a middle-aged Korean population and investigated associations with age, gender, body mass index (BMI), metabolic syndrome (MS), type 2 diabetes mellitus (T2DM), and dietary habits. The median concentrations of 22 OCPs and 34 PCBs in the serum samples were 483 and 216 ng g 1 lipid, respectively. The most abundant compound was p,p'-DDE, followed by PCB 153, beta-HCH, PCB 118, and PCB 180. The results of multiple linear regression and other statistical analyses revealed that serum OCP and PCB levels were higher in women and were positively correlated with age. BMI was positively associated with serum OCP and PCB levels, reflecting the influence of food intake and the preserving effect of body fat. MS and T2DM were significantly associated with serum OCP and PCB levels. The intake of animal foods had positive associations with serum OCP and PCB levels, whereas the intake of phytogenic foods showed negative associations, presumably because of contamination levels in food items and food matrices that governs absorption and excretion of OCPs and PCBs in the body. The relationship between dietary habits and serum OCP and PCB levels were different in participants with MS compared to healthy participants, suggesting MS may alter the influence of food intake on serum OCP and PCB levels. PMID- 29032526 TI - Micro-pollutants in sediment samples in the middle Danube region, Serbia: occurrence and risk assessment. AB - This is the first comprehensive study on the occurrence of 940 semi-volatile organic compounds including sterols, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), pesticides, plasticizers, and other emerging compounds in 10 river and canal sediments collected in northern Serbia. For quantification of investigated compounds GC-MS-MS (selected reaction monitoring) and GC-MS (using both selected ion monitoring and total ion monitoring) methods were used. The number of detected compounds was in the range of 85-117, while the sum of the concentrations varied from 959 MUg/kg dry-wt to 84,445 MUg/kg dry-wt. Sterols were quantified with high frequency in nearly 100% of investigated samples suggesting that the studied rivers and canals have been contaminated by sewage. Regarding persistent organic compounds, p,p'-DDE, p,p'-DDD, and o,p'-DDT were the dominant members of organochlorine pesticides (OCPs). The concentration range of 11 quantified pesticides of 452 analyzed was from 0.564 to 61.6 MUg/kg dry-wt, while the concentration range of 47 quantified PCBs of 90 analyzed was from 0.928 to 32.1 MUg/kg dry-wt. OCPs (DDE, DDD, and gamma-HCH) and several PAHs (fluoranthene, pyrene, phenanthrene, chrysene, benzo(a)anthracene, benzo(a)pyrene) exceeded the maximum values of the sediment quality guidelines. Contents of domestic compounds comprise a large proportion of the total contaminant concentration. Overall, the study reveals that river sediments in Vojvodina Province were moderately polluted mainly by domestic wastewater. The toxic equivalent quantity (TEQ) relative to benzo(a)pyrene and 2,3,7,8 tetrachlorodibenzodioxin for seven carcinogenic PAHs and six quantified dioxin like PCBs ranged from 3.59 to 103 MUg TEQ/kg and from 0.001 * 10-3 to 2.10 * 10-3 MUg TEQ/kg, respectively, and were in the range or lower than the literature published data. PMID- 29032527 TI - Spatiotemporal distributions of polycyclic aromatic hydrocarbons close to a typical medical waste incinerator. AB - Environmental contaminations by polycyclic aromatic hydrocarbons (PAHs) especially from incinerators occur subtly, and PAH contribution from this source is underestimated. However, as environmental PAH concentrations build up, this may be a serious concern around the incinerator vicinity due to the potential consequences of PAHs on ecosystems and human health. Thus, the contribution of selected (12) PAHs from the Obafemi Awolowo University Teaching Hospital medical waste incinerator (or source, HWI_0) was determined by sampling stack gas and ambient air around incinerator vicinity from June 2014 to May 2015. Results showed that the 12 PAH source (HWI_0) concentrations were in the range of NA (for phenanthrene, pyrene, anthracene, benz[e]acephenanthrylene, and indeno[2,1 b]chromene) to 10.9 ng/m3 (pyrelene) and generally higher than the receptor points (hospital waste incinerators (HWIs)). The average total PAH concentrations per month at HWI_0 and the receptors-HWI_1, HWI_2, HWI_3, HWI_4 and HWI_5-were 73.0 +/- 27.9, 60.4 +/- 30.8, 42.5 +/- 23.6, 38.7 +/- 21.9, 35.0 +/- 27.2, and 39.2 +/- 22.9 ng/m3, respectively. These results and multivariate receptor model analysis indicated high correlations between source PAH contributions and the receptor points. The PAH concentrations in the dry season were higher than the wet season suggesting that hydrological condition affects ambient PAH concentrations. The average PAH concentrations in the HWIs as well as the cumulative exposure concentrations observed throughout the period are of major health concern because PAH concentrations detected are several times higher than both the European Union standard and the WHO guideline level. PMID- 29032528 TI - Regression and multivariate models for predicting particulate matter concentration level. AB - The devastating health effects of particulate matter (PM10) exposure by susceptible populace has made it necessary to evaluate PM10 pollution. Meteorological parameters and seasonal variation increases PM10 concentration levels, especially in areas that have multiple anthropogenic activities. Hence, stepwise regression (SR), multiple linear regression (MLR) and principal component regression (PCR) analyses were used to analyse daily average PM10 concentration levels. The analyses were carried out using daily average PM10 concentration, temperature, humidity, wind speed and wind direction data from 2006 to 2010. The data was from an industrial air quality monitoring station in Malaysia. The SR analysis established that meteorological parameters had less influence on PM10 concentration levels having coefficient of determination (R 2) result from 23 to 29% based on seasoned and unseasoned analysis. While, the result of the prediction analysis showed that PCR models had a better R 2 result than MLR methods. The results for the analyses based on both seasoned and unseasoned data established that MLR models had R 2 result from 0.50 to 0.60. While, PCR models had R 2 result from 0.66 to 0.89. In addition, the validation analysis using 2016 data also recognised that the PCR model outperformed the MLR model, with the PCR model for the seasoned analysis having the best result. These analyses will aid in achieving sustainable air quality management strategies. PMID- 29032530 TI - Economic and sustainable management of wastes from rice industry: combating the potential threats. AB - Rice is one of the imperative staple foods, particularly in the developing countries. The exponential boom in human population has resulted in the continuous expansion in the rice industry in order to meet the food demands. The various stages of paddy processing release huge quantity of solid wastes, mainly rice husk, rice husk ash and liquid wastes in the form of rice industry wastewater. The discharge of the rice industry wastewater imparts a substantial threat to the aquatic bodies and the nearby surrounding and, thus, consequently demands eco-benign treatment plan. As a result, different strategies are needed to enhance the effluent quality and minimize the operational cost of the treatment process. Therefore, efficient technological approach targeting the minimization of pollution as well as assuring the economic prosperity should be implemented. In this review article, several aspects related to the rice industry discussing the significant challenges involved in the generation of both solid and liquid wastes, mitigation experiments and future prospects have been meticulously elaborated. Furthermore, the article also focuses on the various processes utilized for reducing the pollution load and promoting the practice of reuse and recycle of waste rather than the discharge action for the sake of sustainability and the emergence of novel techniques for the generation of energy and value-added products. PMID- 29032529 TI - Biological and analytical techniques used for detection of polyaromatic hydrocarbons. AB - Polycyclic aromatic hydrocarbons contain two or more fused benzene rings that are considered as cosmo-pollutants ubiquitously found in the environment. The identification and monitoring of polycyclic aromatic hydrocarbons (PAHs) are of great interests for rapid and on-site detection. Therefore, many analytical and biological techniques have been proposed for the qualitative and quantitative assessments of PAHs. Non-biological analytical techniques such as infrared, Raman, and fluorescence spectroscopies are commonly exploited as non-destructive techniques while gas chromatography (GC) and high-performance liquid chromatography (HPLC) with multiple detectors are extensively employed for the separation and detection of an analyte. Even though spectroscopy and chromatography are more accurate, convenient, and feasible techniques, often, these methods are expensive and sophisticated which require high maintenance cost. On the other hand, biological approaches, i.e., immunoassay, PCR, and microarray, offer comprehensive high-throughput specificity and sensitivity for a similar analyte. Biosensor- and immunoassay-mediated detections of PAHs have opened up new avenues in terms of low cost, rapid determination, and higher sensitivity. In this review, we have discussed the strengths and limitations of biological and analytical techniques that were explored for precise evaluation and were trusted at both the legislation and research levels. PMID- 29032531 TI - Bilateral Tolosa-Hunt syndrome mimicking pituitary adenoma. AB - The authors report a rare case of bilateral Tolosa-Hunt syndrome, which occurred in a 80-year-old female and remitted spontaneously. Inflammatory lesions were found not only in typical locations, i.e. superior orbital fissures and cavernous sinuses, but also in the pituitary; these imitated gland's macroadenoma in imaging studies. PMID- 29032532 TI - Genotyping Strains of Lyme Disease Agents Directly From Ticks, Blood, or Tissue. AB - The tick-borne spirochetes that cause Lyme disease in North America and Eurasia display strong linkage disequilibrium between certain chromosomal and plasmid loci within each three major geographic areas of their distribution. For strain typing for epidemiologic and ecologic purposes, the commonly used genotypes based on a single locus are the spacer between the 16S-23S ribosomal RNA and the ospC gene of a plasmid. A simple genotyping scheme based on the two loci allows for discrimination between strains representing all the areas of distribution. The methods presented here are meant for genotyping directly from ticks and from blood and tissue samples from vertebrates. PMID- 29032533 TI - Species Identification and Phylogenetic Analysis of Borrelia burgdorferi Sensu Lato Using Molecular Biological Methods. AB - Bacterial species identification is required in different disciplines and depending on the purpose-levels of specificity or resolution of typing may vary. Nowadays, molecular methods are the mainstay for bacterial identification and sequence-based analyses are of ever-growing importance. For diagnostics, immediate results are needed and often real-time PCR of one or two loci is the method of choice while for epidemiological or evolutionary studies sequence data of several loci improve phylogenetic resolution to required levels. Multilocus sequence typing (MLST) and multilocus sequence analyses (MLSA) utilize sequences information of several housekeeping loci (eight for Borrelia) to distinguish between species. This method has been widely used for bacterial species and strain identification and will be described in this chapter.As more and more diversity is being detected in the Borrelia burgdorferi sensu lato species complex, the importance of accurate species and strain typing has come to the fore. This is particularly significant with a view of differentiating human pathogenic and non-pathogenic strains or species and understanding the epidemiology, ecology, population structure, and evolution of species. PMID- 29032534 TI - Generation of Mammalian Host-Adapted Borrelia burgdorferi by Cultivation in Peritoneal Dialysis Membrane Chamber Implantation in Rats. AB - The transmission, survival, and virulence of Borrelia burgdorferi depend upon the spirochete's ability to modulate its transcriptome as it cycles between its arthropod vector and reservoir host. This complex adaptive process is collectively referred to as "host-adaptation." The paucibacillary nature of borrelial infections precludes the detailed analysis of host adaptation within infected mammalian tissues. To circumvent this limitation, we (J Clin Invest 101:2240-2250, 1998) developed a model system whereby spirochetes are cultivated within dialysis membrane chambers (DMCs) surgically implanted within the peritoneal cavity of a rat. Spirochetes within DMCs are exposed to many, if not all, of the environmental signals and physiological cues required for mammalian host adaptation but are protected from clearance by the host's immune system. PMID- 29032535 TI - Co-immunoprecipitation for Identifying Protein-Protein Interactions in Borrelia burgdorferi. AB - Co-immunoprecipitation can be utilized to study protein-protein interactions from various environments, cell types, or tissues. Herein, we describe a co immunoprecipitation protocol that can be used to examine protein complexes found in the pathogenic spirochete Borrelia burgdorferi. The method outlined here has successfully identified known and unknown members of borrelial protein complexes and is an efficient method for studying protein interactions in this pathogenic spirochete. PMID- 29032536 TI - Characterization of Borrelia burgdorferi Binding to Mammalian Cells and Extracellular Matrix. AB - Lyme disease Borreliae produces outer surface adhesins to confer bacterial attachment to the extracellular matrix (ECM) components on the surface of mammalian cells. Here, we describe protocols to characterize the activity and specificity of these adhesins by flow cytometry or measurement of the binding of radiolabeled spirochetes to immobilized ECM or mammalian cells. PMID- 29032537 TI - Analysis of Lipids and Lipid Rafts in Borrelia. AB - Lipid rafts are membrane microdomains that are involved in cellular processes such as protein trafficking and signaling processes, and which play a fundamental role in membrane fluidity and budding. The lipid composition of the membrane and the biochemical characteristics of the lipids found within rafts define the ability of cells to form microdomains and compartmentalize the membrane. In this chapter, we describe the biophysical, biochemical, and molecular approaches used to define and characterize lipid rafts in the Lyme disease agent, Borrelia burgdorferi. PMID- 29032538 TI - Trace Element Analysis of Borrelia burgdorferi by Inductively Coupled Plasma Sector Field Mass Spectrometry. AB - Transition metal ions play important structural, regulatory, and catalytic roles in all biological systems by serving as cofactors for proteins. Due to their relatively low levels in the cell compared to abundant metal ions such as potassium and magnesium, transition metals are often considered micronutrients and referred to as trace elements. Manganese (Mn), iron (Fe), copper (Cu), and zinc (Zn) are the most prevalent transition metals in the Lyme disease spirochete Borrelia burgdorferi. Here, we describe a method for the accurate measurement of these trace elements in B. burgdorferi utilizing inductively coupled plasma sector field mass spectrometry (ICP-SFMS). PMID- 29032539 TI - Identification and Characterization of Borrelia burgdorferi Complement-Binding Proteins. AB - Acquisition of host-derived proteins possessing key regulatory function is a hallmark of Borrelia burgdorferi, and an important step to successfully infect the human host, inhibiting activation of complement as innate immunity's first line of defense. Hence, the identification and characterization of interacting ligands is a prerequisite to gain deeper insights into the molecular principles of how spirochetes overcome the detrimental effects of complement. Far western blotting enables the detection of protein-protein interactions in vitro using cell lysates containing the prey proteins and purified complement proteins or human serum as a source for soluble complement proteins as bait proteins. Here, the methodology for the detection and characterization of Borrelia-derived proteins interacting with complement regulator Factor H is described, including the preparation of whole cell lysates, the separation of proteins by Tris-Tricine SDS-PAGE, the transfer of the proteins to nitrocellulose membranes, and the detection of Factor H-interacting proteins by Far western. PMID- 29032540 TI - Artificial Infection of Ticks with Borrelia burgdorferi Using a Microinjection Method and Their Detection In Vivo Using Quantitative PCR Targeting flaB RNA. AB - Borrelia burgdorferi is maintained in nature by a tick-rodent infection cycle where it traverses and colonizes a variety of host and vector tissues. A tick borne murine model has been developed to study Lyme disease in the laboratory, which has a substantial impact in advancing our knowledge of spirochete infectivity and pathogenesis. Here, we detail a microinjection-based method for rapid and efficient infection of ticks with B. burgdorferi. While laboratory generation of B. burgdorferi-infected nymphs via natural larval engorgement on infected hosts and subsequent molting could take several weeks to months, the microinjection-based infection procedure requires only a few hours to generate infected ticks and allows introduction of defined quantities of spirochetes, including mutant isolates that are attenuated for infection in mice and thus cannot be naturally acquired by ticks. We also describe a quantitative PCR-based protocol for the measurement of B. burgdorferi in tick and murine hosts targeting spirochete RNA that is highly efficient, reproducible, and a better surrogate of active infection. PMID- 29032542 TI - Borrelia burgdorferi Transcriptome Analysis by RNA-Sequencing. AB - Next-Generation Sequencing (NGS) has revolutionized transcriptomics studies in the last decade. Transcriptome analysis experiments using NGS-based RNA sequencing have several advantages over DNA microarray analysis. Novel unannotated transcripts and transcriptional start sites can be identified. Differential gene expression can be determined on novel and annotated transcripts simultaneously, whereas DNA microarray analysis can only quantify changes of known genes. In the protocol below we describe an Illumina compatible ligation based method for generating stranded cDNA libraries for total RNA and small RNA transcriptomes in Borrelia burgdorferi. PMID- 29032541 TI - Borrelia burgdorferi Microarray Analysis. AB - Microarray studies have contributed significantly to the current understanding of Borrelia burgdorferi genome content and transcriptional regulation. Here, we describe the use of microarray technology for several aspects of B. burgdorferi genomic analysis. PMID- 29032543 TI - Selection of Borrelia burgdorferi Promoter Sequences Active During Mammalian Infection Using In Vivo Expression Technology. AB - In vivo expression technology (IVET) has been applied to a variety of organisms to identify active promoters in specific environments or growth conditions of interest. Here, we describe modifications to employ this genome-wide screening method for Borrelia burgdorferi, the Lyme disease spirochete, during an active murine infection. Utilization of this technique provides valuable insights into the B. burgdorferi transcriptome during infection, despite the low bacterial numbers in the mammalian host environment. PMID- 29032544 TI - Analysis of DNA and RNA Binding Properties of Borrelia burgdorferi Regulatory Proteins. AB - Bioinformatic approaches and a large volume of prokaryotic genome sequences have enabled rapid identification of regulatory proteins with features to bind DNA or RNA in a given prokaryote. However, biological relevance of these regulatory proteins requires methods to rapidly purify and determine their binding properties within the physiological context or life style of the organism. Here, we describe the experimental approaches to determine the nucleic acid binding properties of regulatory proteins of Borrelia burgdorferi using Borrelia host adaptation Re.3gulator (BadR-a DNA binding protein) and Carbon storage regulators A of B. b urgdorferi (CsrABb-an RNA binding protein) as examples. Best laboratory practices associated with overexpression/purification of recombinant borrelial proteins, synthesis of target nucleic acid sequences, and electrophoretic mobility assays to assess the protein/nucleic acid interactions are described. The methods described are intended to facilitate empirical assessment of the binding affinity, co-factor requirements, quality of the interacting partners, and readily modifiable assay conditions to assess the binding properties to define known and unknown regulatory properties of nucleic acid binding proteins of B. burgdorferi. PMID- 29032545 TI - Identification of Acetylated Proteins in Borrelia burgdorferi. AB - Posttranslational modification (PTM) of proteins has emerged as a major regulatory mechanism in all three domains of life. One emerging PTM is Nepsilon lysine acetylation-the acetylation of the epsilon amino group of lysine residues. Nepsilon-lysine acetylation is known to regulate multiple cellular processes. In eukaryotes, it regulates chromatin structure, transcription, metabolism, signal transduction, and the cytoskeleton. Recently, multiple groups have detected Nepsilon-lysine acetylation in diverse bacterial phyla, but no work on protein acetylation in Borrelia burgdorferi has been reported. Here, we describe a step by-step protocol to identify Nepsilon-lysine acetylated proteins in B. burgdorferi. PMID- 29032546 TI - Genetic Transformation and Complementation. AB - The disciplines of Borrelia (Borreliella) burgdorferi microbiology and Lyme disease pathogenesis have come to depend on the genetic manipulation of the spirochete. Generating mutants in these recalcitrant bacteria, while not straightforward, is routinely accomplished in numerous laboratories, although there are several crucial caveats to consider. This chapter describes the design of basic molecular genetic experiments as well as the detailed methodologies to prepare and transform competent cells, select for and isolate transformants, and complement or genetically restore mutants. PMID- 29032548 TI - Generation of Conditional Mutants in Borrelia burgdorferi. AB - Mutational studies aimed at characterizing the function(s) of bacterial genes required for growth or viability are constrained by the inability to generate deletion strains lacking the gene of interest. To circumvent this limitation, it is possible to generate conditional mutants in which a copy of the gene of interest is introduced into the bacteria to compensate for the loss of the native allele. Expression of the non-native copy of the target gene is typically under control of an inducible promoter, which allows for controllable and regulated production of the gene of interest. Conditional mutants are also broadly useful for phenotypic analyses of genes that require a tightly regulated and artificially inducible copy of the target gene. Herein, we describe the methods used to generate and confirm conditional mutant clones in Borrelia burgdorferi utilizing the Borrelia-adapted lac operator/repressor system. PMID- 29032547 TI - Genome-Wide Mutagenesis in Borrelia burgdorferi. AB - Signature-tagged mutagenesis (STM) is a functional genomics approach to identify bacterial virulence determinants and virulence factors by simultaneously screening multiple mutants in a single host animal, and has been utilized extensively for the study of bacterial pathogenesis, host-pathogen interactions, and spirochete and tick biology. The signature-tagged transposon mutagenesis has been developed to investigate virulence determinants and pathogenesis of Borrelia burgdorferi. Mutants in genes important in virulence are identified by negative selection in which the mutants fail to colonize or disseminate in the animal host and tick vector. STM procedure combined with Luminex Flex(r)MapTM technology and next-generation sequencing (e.g., Tn-seq) are the powerful high-throughput tools for the determination of Borrelia burgdorferi virulence determinants. The assessment of multiple tissue sites and two DNA resources at two different time points using Luminex Flex(r)MapTM technology provides a robust data set. B. burgdorferi transposon mutant screening indicates that a high proportion of genes are the novel virulence determinants that are required for mouse and tick infection. In this protocol, an effective signature-tagged Himar1-based transposon suicide vector was developed and used to generate a sequence-defined library of nearly 4800 mutants in the infectious B. burgdorferi B31 clone. In STM, signature-tagged suicide vectors are constructed by inserting unique DNA sequences (tags) into the transposable elements. The signature-tagged transposon mutants are generated when transposon suicide vectors are transformed into an infectious B. burgdorferi clone, and the transposable element is transposed into the 5'-TA-3' sequence in the B. burgdorferi genome with the signature tag. The transposon library is created and consists of many sub-libraries, each sub library has several hundreds of mutants with same tags. A group of mice or ticks are infected with a mixed population of mutants with different tags, after recovered from different tissues of infected mice and ticks, mutants from output pool and input pool are detected using high-throughput, semi-quantitative Luminex(r) FLEXMAPTM or next-generation sequencing (Tn-seq) technologies. Thus far, we have created a high-density, sequence-defined transposon library of over 6600 STM mutants for the efficient genome-wide investigation of genes and gene products required for wild-type pathogenesis, host-pathogen interactions, in vitro growth, in vivo survival, physiology, morphology, chemotaxis, motility, structure, metabolism, gene regulation, plasmid maintenance and replication, etc. The insertion sites of 4480 transposon mutants have been determined. About 800 predicted protein-encoding genes in the genome were disrupted in the STM transposon library. The infectivity and some functions of 800 mutants in 500 genes have been determined. Analysis of these transposon mutants has yielded valuable information regarding the genes and gene products important in the pathogenesis and biology of B. burgdorferi and its tick vectors. PMID- 29032549 TI - Detection of Bioluminescent Borrelia burgdorferi from In Vitro Cultivation and During Murine Infection. AB - Borrelia burgdorferi, etiologic agent of Lyme disease, is the leading tick-borne disease in the United States with approximately 300,000 cases diagnosed annually. Disease occurs in stages beginning localized infection at the site of a tick bite and progresses to disseminated infection when antibiotic treatment is not administered in a timely manner. A multi-systemic infection develops following dissemination to numerous immunoprotective tissues, such as the heart, bladder, and joints, resulting in late Lyme disease. B. burgdorferi undergoes dynamic genetic regulation throughout mammalian infection and defining the exact role of virulence genes at distinct stages of disease is challenging. The murine model allows for the characterization of the pathogenic function of genes in B. burgdorferi, but traditional end point studies limit the ability to gather data throughout an infection study and greatly increase the required number of mice. Molecular genetic techniques to evaluate and quantitate B. burgdorferi infection are laborious and costly. To partly circumvent these issues, a codon optimized firefly luciferase, under the control of a constitutive borrelial promoter, was introduced into B. burgdorferi enabling the characterization of mutant or modified strains under in vitro growth conditions and throughout murine infection. The detection of bioluminescent B. burgdorferi is highly sensitive and allows for the repeated real-time quantitative evaluation of borrelial load during murine infection. Furthermore, bioluminescence has also been utilized to evaluate alteration in tissue localization and tissue-specific gene expression of B. burgdorferi. In this chapter, we describe the generation of bioluminescent borrelial strains along with methods for in vitro, in vivo, and ex vivo B. burgdorferi studies. PMID- 29032550 TI - Analysis of Borrelia burgdorferi Proteome and Protein-Protein Interactions. AB - The proteome of Borrelia burgdorferi undergoes dynamic alterations as the microbe cycles through and persists in diverse host or vector environments. Therefore, studies of B. burgdorferi proteome and protein-protein interactions, which play central roles in biological processes in diverse organisms, are critical in understanding biology and infectivity of spirochetes. Here, we describe the proteomic analysis of B. burgdorferi by two-dimensional (2-D) gel electrophoresis followed by protein identification via liquid chromatography-mass spectrometry and database searching. We also describe assays for studying the interaction between borrelial proteins: a novel high-throughput luciferase assay, yeast two hybrid assay, and a far-Western assay that are routinely used in our laboratories. PMID- 29032551 TI - Two Photon Intravital Microscopy of Lyme Borrelia in Mice. AB - Two-photon intravital microscopy is a powerful tool that allows visualization of cells in intact tissues in a live animal in real time. In recent years, this advanced technology has been applied to understand pathogen-host interactions using fluorescently labeled bacteria. In particular, infectious fluorescent transformants of the Lyme disease spirochete Borrelia burgdorferi, an Ixodes tick transmitted pathogen, have been imaged by two-photon intravital microscopy to study bacterial motility and interactions of the pathogen with feeding ticks and host tissues. Here, we describe the techniques and equipment used to image mammalian-adapted spirochetes in the skin of living mice in vivo and in joints ex vivo using two-photon intravital microscopy. PMID- 29032552 TI - Investigating Human Dendritic Cell Immune Responses to Borrelia burgdorferi. AB - Dendritic cells (DCs) are professional antigen-presenting cells that recognize and phagocytose pathogens, and help to orchestrate adaptive immune responses to combat them. DCs are abundant in the skin where Borrelia burgdorferi first enters the body during a tick bite, and are thus critical in determining the initial stages of the innate and adaptive immune responses against Borrelia. Here, we describe two methods to study the response of DCs to Borrelia; an in vitro approach using monocyte-derived DCs (moDCs) and an ex vivo approach using a human skin model. PMID- 29032553 TI - Phagocytosis Assays for Borrelia burgdorferi. AB - Phagocytosis of Borrelia burgdorferi, the causative agent of Lyme disease, is a poorly understood process, despite its importance during the host immune response to infection. Thus, macrophages infiltrate the infected tissues, including the base of the heart and phagocytose the spirochete, therefore contributing to their elimination from infected tissues and leading to inflammation. An impaired bacterial clearance will result in bacterial persistence that may interfere with normal physiology of the heart, such as electrical signals from the heart, resulting in an impaired coordination of the beating of the heart or "heart block." This chapter presents a protocol for establishing primary mouse macrophage cultures, a method for lentivirus silencing of primary cells, and a method for the in vitro study of macrophage phagocytosis of fluorescently labeled Borrelia burgdorferi. PMID- 29032554 TI - Measuring Borrelia burgdorferi Motility and Chemotaxis. AB - Swimming plate, cell motion tracking, and capillary tube assays are very useful tools to quantitatively measure bacterial motility and chemotaxis. These methods were modified and applied to study Borrelia burgdorferi motility and chemotaxis. By using these methods, numerous motility and chemotaxis mutants have been characterized and several chemoattractants were identified. With the assistance of these tools, the role of motility and chemotaxis in the pathogenicity of B. burgdorferi has been established. In addition, these tools also facilitate the study of motility and chemotaxis in other spirochetes. PMID- 29032555 TI - In Vitro Models of Cutaneous Inflammation. AB - The skin plays an essential role in the transmission of Lyme borreliosis since it is the first interface between the Ixodes tick and the host during the inoculation of Borrelia burgdorferi sensu lato. A better understanding of the inflammatory reaction at this location is key to develop better strategies (e.g., vaccine and diagnosis) to fight this disease. In vitro cell culture of resident skin cells might constitute an approach to decipher the complex interplay between the tick, the pathogen, and the vertebrate host. PMID- 29032556 TI - Magnetic Isolation of Phagosomes Containing Toll-Like Receptor Ligands. AB - Phagosomal compartments are critical in microbial defense as vesicles that degrade invading organisms. In a broader context, vesicular trafficking plays an important role in shuttling many different types of cargo that are critical for proper function of the cell. Endosomal and phagosomal vesicles are thus important locations for the assembly of intracellular signaling platforms that mediate host responses to invasive pathogens such as Borrelia burgdorferi. Isolation of phagosomes from cells is an important technique that allows for a detailed study of phagosomal components and signaling complex assembly. However, purification of phagosomes had previously been challenging and it has been difficult to obtain sufficient purity of the phagosomal fractions. Here, we modify a new magnetic isolation technique that greatly simplifies purification of phagosomes and isolates vesicles with sufficient purity for analysis. PMID- 29032557 TI - Xenodiagnosis Using Ixodes scapularis Larval Ticks in Humans. AB - Xenodiagnosis is the use of a natural vector to detect the presence of an organism, and xenodiagnosis using Ixodes ticks has long been used by entomologists in Lyme disease research to provide evidence of the host's infectious status with Borrelia burgdorferi. We developed the methodology and performed the first human research study using uninfected larval Ixodes scapularis ticks to assess evidence of B. burgdorferi infection. Here, we describe in detail the methodology used for the procedure. Xenodiagnosis using Ixodes ticks in humans remains an experimental method and must be performed under an approved clinical research protocol. PMID- 29032559 TI - Evolving Concepts in Pulmonary Hypertension. PMID- 29032558 TI - Recombinant E. coli Dualistic Role as an Antigen-adjuvant Delivery Vehicle for Oral Immunization. AB - Escherichia coli is the mainstay tool for fundamental microbiology research due to its ease of cultivation and safety. Auxotrophic strains of the K-12 and B lineages of E. coli are the organisms of choice to produce recombinant proteins. Components present in the cell envelope of bacteria are also potent immune modulators and have been used to develop adjuvants. We used live E. coli, after induction of recombinant protein expression, to develop a vehicle which has a dualistic function of producing vaccine while presenting itself as the adjuvant to deliver oral vaccines against a number of infectious diseases, including Lyme disease. Here, we give an example using E. coli expressing B. burgdorferi Outer Surface Protein A, which was proven effective in reducing B. burgdorferi burden in infected ticks after a 5-year field trial of a baited formulation containing this reservoir targeted vaccine. PMID- 29032560 TI - Pulmonary Hypertension: Definition, Classification, and Diagnosis. PMID- 29032561 TI - Pathology and Pathobiology of Pulmonary Hypertension. PMID- 29032562 TI - Genetics of Pulmonary Arterial Hypertension. PMID- 29032563 TI - Screening of Pulmonary Arterial Hypertension. PMID- 29032564 TI - Idiopathic Pulmonary Arterial Hypertension: Evolving Therapeutic Strategies. PMID- 29032565 TI - Pulmonary Hypertension Complicating Connective Tissue Disease. PMID- 29032566 TI - Pulmonary Arterial Hypertension Complicating Congenital Heart Disease: Advances in Therapy. PMID- 29032567 TI - Pulmonary Hypertension Due to Left Heart Disease. PMID- 29032568 TI - Chronic Thromboembolic Pulmonary Hypertension: Advances in Therapy. PMID- 29032569 TI - Medical Treatment of Pulmonary Arterial Hypertension. PMID- 29032570 TI - Lung Transplantation for Pulmonary Hypertension and Strategies to Bridge to Transplant. PMID- 29032571 TI - Quantity of Lymph Nodes in the Vascularized Lymph Node Transfer Influences Its Lymphaticovenous Drainage. AB - BACKGROUND: The purpose of this study was to: (1) evaluate the mechanism of lymph drainage through a vascularized lymph node (VLN) flap, and (2) investigate if the number of VLNs impacts lymph transit time through the flap. METHODS: Twenty-seven axillary VLN flaps were elevated in 14 Sprague-Dawley rats and divided into three groups (n = 9 each) based on the number of lymph nodes present: group 1 (0-VLNs), group 2 (2-VLNs), and group 3 (4-VLNs). Indocyanine green (n = 8/group) and Alexa680-albumin (n = 1/group) were injected into the edge of flaps and the latency period between injection and fluorescence in the axillary vein was recorded. Stereomicroscopic fluorescent lymphography was performed to directly visualize lymphatic transit through VLNs. RESULTS: Fluorescence was detected in the axillary vein after 229s [47-476], 79s [15-289], and 56s [16-110] in group 1, 2, and 3, respectively (p < 0.01). There was a negative correlation between the number of VLNs in the flap and the latency period (r = -0.59; p < 0.05). Median flap weights were comparable in group 1, 2, and 3 (258 mg [196-349], 294 mg [212-407], 315 mg [204-386], respectively; p = 0.54). Stereoscopic lymphography allowed direct visualization of lymphatic fluid transit through VLNs. CONCLUSION: Lymphatic fluid in VLN flaps drains into the venous system mainly by passing through the afferent lymphatics and lymph nodes. A secondary mechanism appears to be the diffusion of fluid into the venous system via intratissue lymphaticovenous connections created during flap elevation. Increasing the number of lymph nodes in the flap is associated with a more rapid transit of fluid. PMID- 29032572 TI - Effect of enterovirus infections on asthma in young children: A national cohort study. AB - BACKGROUND: We conducted a cohort study to determine the relationship between enterovirus (EV) infection and asthma. MATERIALS AND METHODS: From the National Health Insurance Research Database of Taiwan, we identified patients who received a new diagnosis of asthma and concurrent treatment between January 2000 and December 2011 (EV cohort: n = 208 213; non-EV cohort: n = 208 213). Cox proportional hazards regression analysis was performed to determine and compare the adjusted hazard ratios (aHRs) of asthma between these 2 cohorts. Kaplan-Meier analysis was conducted to assess the differences in the cumulative incidence curves of asthma between the 2 cohorts. RESULTS: The overall aHR of asthma was 1.48-fold higher in the EV cohort than in the non-EV cohort (95% confidence interval = 1.45-1.50). The aHR of asthma was higher in the EV cohort than in the non-EV cohort, comprising children aged <=5 years, regardless of sex, sociodemographic factors (urbanization level and parental occupation) or comorbidities. The risk of asthma was higher in 1-3, 4-6, 7-9 and 10-12 months (all P < .001), particularly in those with a higher frequency of admission (>5 per year). CONCLUSION: The incidence of asthma was higher in the EV cohort than in the non-EV cohort, comprising children aged <=5 years, regardless of sex, urbanization level, parental occupation or season. In particular, the risk of asthma was higher in children with a higher frequency of admission, even in the absence of atopy or other respiratory infections. PMID- 29032573 TI - Protein biomarker of cell proliferation determines survival to discharge in cases of equine large colon volvulus. AB - BACKGROUND: Progenitor cells play critical roles in epithelial repair following ischaemic injury. Protein biomarkers have been used to identify intestinal progenitor cell subpopulations. This study aims to determine if a critical number of intestinal progenitor cells can predict tissue viability and survival to discharge of large colon volvulus (LCV) cases. OBJECTIVES: The objectives were to 1) identify intestinal progenitor cell subpopulations using biomarkers: proliferating cell nuclear antigen (PCNA), sex determining region Y box 9 (SOX9), phospho-histone H3 (PHH3) and Ki-67, 2) define cut-off values for critical numbers of positive cells and 3) determine if survival to discharge is associated with cut-off values. STUDY DESIGN: Retrospective cohort study. METHODS: Adult horses admitted to the Farm and Equine Veterinary Medical Center at NC State's Veterinary Hospital and Peterson and Smith Equine Hospital between 2006 and 2016 that underwent an exploratory coeliotomy with a diagnosis of LCV of >=360 degrees, had pelvic flexure biopsy and that recovered from general anaesthesia were selected for inclusion in the study. Immunohistochemical analyses were performed and positive cells were counted. Optimal cut-off values were determined using receiver operator curves. A Fisher's exact test was used to associate cut off values with survival to discharge. RESULTS: In this study, 23 cases of LCV >=360 degrees were included. Of 23 horses, 13 (57%) survived to discharge. A cut off value of <2.1 PHH3 positive cells per crypt correctly predicted death with 100% sensitivity (95% CI; 69.15-100%) and 84.62% specificity (95% CI; 54.55 98.08%). LCV cases with <2.1 PHH3 positive cells per crypt were 96.6 times more likely to die (95% CI; 4.14-2255 and P < 0.0001). Biomarkers PCNA, SOX9 and Ki-67 did not predict short-term survival. MAIN LIMITATIONS: The population size was small. CONCLUSIONS: PHH3 immunohistochemical analysis may assist in more accurate prediction of survival to hospital discharge of LCV cases. The summary is available in Spanish - see Supporting Information. PMID- 29032574 TI - Five-year outcomes of a randomized clinical trial comparing bone-level implants with either submerged or transmucosal healing. AB - AIM: To evaluate the long-term hard and soft tissue peri-implant tissue stability of bone-level implants using a different implant placement protocol (submerged versus transmucosal). MATERIALS AND METHODS: This study was partly a subset analysis of a multicentre study where in 40 patients, a single bone-level implant with platform switching and a conical implant-abutment interface was placed either submerged or transmucosal in non-molar sites. Changes in the peri-implant tissues between implant placement and 5 years were assessed clinically and radiologically. Patient-related outcomes were also recorded. RESULTS: Thirty patients completed the 5-year follow-up. Implant survival rate was 100%. The mean radiographic changes in crestal bone levels between baseline and 5 years were 0.59 (0.92) mm and 0.78 (1.03) mm for the submerged and the transmucosal groups, respectively. No statistical significant differences were found between the groups for any of the investigated variables. Peri-implantitis, defined as changes in the level of crestal bone of >=2 mm together with bleeding on probing, was only diagnosed in one patient. Patients in both groups were highly satisfied with the treatment received. CONCLUSIONS: Bone-level implants with submerged or transmucosal healing protocols demonstrated similar outcomes after 5 years. Both protocols yielded optimal clinical and radiographic results when bone-level implants were placed in non-molar positions for single tooth replacement. PMID- 29032575 TI - Decreased Expression of IFNG-AS1, IFNG and IL-1B Inflammatory Genes in Medicated Schizophrenia and Bipolar Patients. AB - Although aberrant expression of cytokines such as IL-1B and IFNG in blood from psychiatric patients supports a role of inflammation in the pathogenesis of the disease, little is known about mechanisms underlying their regulation. We aimed to evaluate the putative role of IFNG-AS1 long non-coding RNA (lncRNA) in controlling of IFNG locus in patients with schizophrenia (SZ) and bipolar (BP). We analysed the expression levels of IFNG-AS1 long non-coding RNA, and IFNG and IL-1B mRNAs in blood cells from 27 SZ- and 30 BP-medicated patients and in 32 healthy controls. Our data showed that IFNG-AS1 expression dramatically decreased in BP and SZ patients compared with controls and was significantly correlated with IFNG expression in patients specifically. Transcript levels of IL-1B were also significantly reduced in BP and SZ patients compared with controls. No significant differences in the expression of IFNG-AS1, IFNG and IL-1B genes were found between patients with BP and SZ. Our data shed further light on the potential role of inflammation, and more particularly inflammatory lncRNAs, in SZ and BP diseases and their pharmacological treatment. PMID- 29032576 TI - Hispanane-Type Diterpenoid and Secoiridoid Glucosides from Viburnum cylindricum. AB - Three hitherto unknown compounds, including one new hispanane-type diterpenoid glucoside, namely viburnumoside (1), two new secoiridoid glucosides, 7alpha galloyloxysweroside (2), and 7beta-galloyloxysweroside (3), together with ten known compounds (4 - 13) were isolated from the ethanol extract of twigs and leaves of Viburnum cylindricum. Their structures were elucidated on the basis of extensive spectroscopic studies, and the absolute configuration of compound 1 was confirmed by the experimental and calculated electronic circular dichroism (ECD) data. PMID- 29032578 TI - First trimester screening for pre-eclampsia in Chinese pregnancies: case-control study. AB - OBJECTIVE: To assess the potential of screening for pre-eclampsia (PE) in a Chinese population. DESIGN: Case-control study. SETTING: Teaching hospital in Hong Kong. POPULATION: A total of 3330 women having a viable singleton pregnancy attending first-trimester Down-syndrome screening. METHODS: Mean arterial pressure (MAP), bilateral uterine artery pulsatility index (UtA-PI), and placental growth factor (PlGF) were measured. Screening markers were transformed to multiples of the gestational median (MoM) and adjusted for maternal and pregnancy characteristics. MoM distributions in PE and non-PE pregnancies were compared with published expected values. PE screening performance was assessed using area under receiver operating curves (AUROC). MAIN OUTCOME MEASURES: PE detection rate. RESULTS: A total of 30 (0.9%) women developed either early (<34 weeks) or late (>=34 weeks) onset PE. MAP was dependent on maternal BMI, UtA-PI on fetal crown rump length, uterine artery peak systolic velocity (UtA-PSV) on maternal age and gestation, and PlGF on gestation in non-PE pregnancies. MoM distributions determined using published Fetal Medicine Foundation models deviated significantly from one for both MAP (P < 0.0001) and PI (P < 0.0001), but not PlGF (P = 0.52) in non-PE pregnancies, whilst PlGF MoM distributions in those who developed early as opposed to late onset PE were significantly higher (P = <0.05). AUROC for any PE using multiple markers was 0.72 (95% CI: 0.64-0.81) with detection rates of 72 and 55% for early and late PE, respectively, for a 10% false positive rate. CONCLUSION: Detection rates for PE in our Chinese population were lower than the expected 90-95% even after adjusting MoM for local women's characteristics. FUNDING: General Research Fund (Project number 470513). TWEETABLE ABSTRACT: Pre-eclampsia screening in the Chinese population had detection rates lower than previously published results. PMID- 29032577 TI - Pyruvate kinase isozyme M2 and glutaminase might be promising molecular targets for the treatment of gastric cancer. AB - The aim of this study was to analyze the significance of glucose metabolism related enzymes in the proliferation of gastric cancer under hypoxia. Four hypoxia-resistant gastric cancer cell lines and four parent cell lines were used. Reverse transcription-PCR was used to evaluate the mRNA expression levels of the following metabolism-related enzymes: pyruvate kinase isozyme M2 (PKM2), glutaminase (GLS), enolase 1 (ENO1), glucose-6-phosphate dehydrogenase (G6PDH), and PKM1. The effects of these enzymes on the proliferation of gastric cancer cells were examined using siRNAs, shikonin as a PKM2 inhibitor, or BPTES as a GLS inhibitor, in vitro and in vivo. Levels of both PKM2 and GLS mRNA were significantly high in all hypoxia-resistant cell lines, compared with those of their parent cells. Knockdown of PKM2 and GLS significantly decreased the proliferation of all hypoxia-resistant cells. The combination of siPKM2 and siGLS significantly decreased proliferation compared with treatment by siPKM2 or siGLS alone. The knockdown of ENO1, G6PDH, or PKM1 did not decrease the proliferation of all hypoxia-resistant cells. Combination treatment using shikonin and BPTES inhibited the proliferation of all hypoxia-resistant cancer cells more than that by either agent alone. The in vivo study indicated that the tumor size treated by the combination of shikonin and BPTES was significantly smaller than that of vehicle-treated group. These findings suggested that PKM2 and GLS might play important roles in the proliferation of hypoxic gastric cancer cells. A combination of PKM2 and GLS inhibitors could be therapeutically promising for the treatment of gastric cancer. PMID- 29032579 TI - Incidentally detected testicular lesions <10 mm in diameter: can orchidectomy be avoided? AB - OBJECTIVE: To investigate the pathology of excised testicular lesions <10 mm in size. PATIENTS AND METHODS: The pathological reports of 2 681 patients with testicular lesions from Barts Health NHS Trust and Oxford University Hospitals NHS Foundation Trust were reviewed as part of a service evaluation audit from January 2003 to May 2016. Cases in which the lesion had a maximum diameter of <10 mm were selected. Clinical features were also accessed, where available, to examine patient demographics, prediagnostic levels of serum markers, ultrasonographic findings and clinical details. RESULTS: A total of 81 patients with a lesion size <10 mm on histology were identified and, of these, 16 (20%) had a lesion diameter <5 mm. Of the 81 patients, 56 (69%) had benign lesions. Of 16 patients with a benign lesion <5 mm in diameter, 15 underwent orchidectomy and just one underwent partial orchidectomy. Preoperative tumour markers were available in 47/81 patients. None of the 16 malignant tumours in these 47 patients were associated with raised tumour markers, while seven of 31 remaining patients with benign lesions had raised alpha-fetoprotein and lactate dehydrogenase levels. In total there were 25/81 malignant cases (31%), which were all germ cell tumours (GCTs): 15 seminomas (60%) and 10 non-seminomatous GCTs (40%). Only one GCT had a diameter of <5 mm, and this was a regressed tumour within an 18-mm area of granulomatous inflammation. Only one GCT relapsed: a clinical stage I, embryonal carcinoma of 6 mm in maximum diameter. The 56 'benign' cases included 34 sex cord stromal tumours, including 23 Leydig cell tumours (41%), eight Sertoli cell tumours (14%) and three mixed sex cord stromal tumours (5%). None showed any malignant features. The remaining 22/56 lesions (40%) were lesions with no further follow-up. Benign lesions seemed to be associated with a small diameter, and we found <5 mm to be the best threshold for predicting benign vs malignant lesions (P = 0.002). CONCLUSION: The majority of testicular lesions <10 mm, identified by radiology, were benign, although approxmiately one-third were malignant. In the present study, 100% of lesions <5 mm in diameter were benign. Tumour markers appear to be unhelpful in the distinction of these small tumours. We suggest that regular ultrasound surveillance be more widely used for testicular lesions of this size. Testicular tumours now have a very high cure rate and changes in size of lesions may be monitored prospectively with minimal risk of increased morbidity. Patients who undergo an orchidectomy for lesions <5 mm are 'victims of modern imaging technology'. If surgery is undertaken in lesions 5-10 mm, patients should be counselled that two-thirds of cases are benign. PMID- 29032580 TI - Impact of ureteroscopy before radical nephroureterectomy for upper tract urothelial carcinomas on oncological outcomes: a meta-analysis. AB - OBJECTIVES: To investigate whether ureteroscopy (URS) before radical nephroureterectomy (RNU) for upper tract urothelial carcinomas (UTUCs) has an impact on oncological outcomes. PATIENTS AND METHODS: We performed a systematic literature search of PubMed, Web of Science, and EMBASE for citations published prior to September 2017 that described URS performed on patients with UTUC and conducted a standard meta-analysis on survival outcomes. RESULTS: Our meta analysis included eight eligible studies containing 3975 patients. The results were as follows: cancer-specific survival (CSS; hazard ratio [HR] 0.76, 95% confidence interval [CI] 0.59-0.99; P = 0.04), overall survival (OS; HR 0.76, 95% CI 0.48-1.21; P = 0.24), recurrence-free survival (RFS; HR 0.89, 95% CI 0.69 1.14; P = 0.37), metastasis-free survival (MFS; HR 1.06, 95% CI 0.82-1.36; P = 0.66), and intravesical recurrence-free survival (IRFS; HR 1.51, 95% CI 1.29 1.77; P < 0.001). When excluding previous bladder tumour history, the result for IRFS was a HR of 1.81 (95% CI 1.53-2.13; P < 0.001). CONCLUSIONS: This meta analysis indicated that URS before RNU did not have a negative impact on CSS, OS, RFS, or MFS in patients with UTUC. However, patients were at higher risk of intravesical recurrence after RNU when they had undergone URS before RNU. Further studies are needed to assess the effects of post-URS intravesical chemotherapy on intravesical recurrence. PMID- 29032581 TI - Utilization and quality outcomes of cT1a, cT1b and cT2a partial nephrectomy: analysis of the national cancer database. AB - OBJECTIVE: To describe the utilization and compare quality outcomes of partial nephrectomy (PN) for cT1a, cT1b and cT2a renal masses using a large national database. METHODS: We conducted a retrospective analysis of patients from the US National Cancer Database who underwent PN for cT1a/cT1b/T2a renal cell carcinoma between 2004 and 2013. We examined the use of PN over time and assessed quality indicators [positive surgical margin (PSM) and 30-day postoperative readmission rates]. Multivariable analysis was conducted to determine predictors for outcome comparisons. RESULTS: A total of 43 749 patients underwent PN for cT1a, cT1b and cT2a renal masses (cT1a, n = 34 796; cT1b, n = 8 040; cT2a, n = 913). The proportion of patients undergoing PN increased from 30.8% in 2004 to 56.7% in 2013 (P < 0.001), and this trend was apparent for all clinical stages. The PSM rate was 6.8%. Predictive factors for increased risk of PSMs included cT1a stage (P = 0.03), age [odds ratio (OR) 1.01; P < 0.001] and later year of diagnosis (OR: 1.05; P < 0.001). The 30-day readmission rate was 4.2%. Predictive factors for increased risk of readmission included cT1b (P < 0.001), high Charlson comorbidity score (OR: 1.32; P = 0.001) and lack of private insurance (OR: 1.21 1.97; P < 0.05); later year of diagnosis was associated with decreased odds of readmission (OR: 0.96; P < 0.001). Subset analysis of the 2010-2013 cohort showed increases in the proportion of minimally invasive PN for cT1a (52.8-69.6%; P < 0.001), cT1b (39.9-59.6%; P < 0.001) and cT2a tumours (33.3-47.3%; P = 0.01). The PSM rate was also increased, at 7.3%. Predictive factors for PSMs included increasing age (OR: 1.01; P < 0.001), minimally invasive surgical approach (OR: 1.52; P < 0.001), and conversion to open surgery (OR: 1.52; P = 0.01), but not clinical stage (P = 0.75-0.99). The 30-day readmission rate was 4.0%. Predictive factors for readmission included lack of private insurance (P < 0.001) and conversion to open surgery (OR: 1.63; P < 0.001). CONCLUSION: The use of PN has increased significantly over time for all clinical stage groups. PSM rates increased, while 30-day readmission rates decreased. The PSM rate increase was driven by increasing use of minimally invasive approaches, and not by higher clinical stage. The 30-day readmission rate was driven by patient comorbidities and socio-economic factors. Rising PSM rates represent a quality-of-care concern. PMID- 29032582 TI - National cohort study comparing severe medium-term urinary complications after robot-assisted vs laparoscopic vs retropubic open radical prostatectomy. AB - OBJECTIVES: To evaluate the occurrence of severe urinary complications within 2 years of surgery in men undergoing either robot-assisted radical prostatectomy (RARP), laparoscopic radical prostatectomy (LRP) or retropubic open radical prostatectomy (ORP). PATIENTS AND METHODS: We conducted a population-based cohort study in men who underwent RARP (n = 4 947), LRP (n = 5 479) or ORP (n = 6 873) between 2008 and 2012 in the English National Health Service (NHS) using national cancer registry records linked to Hospital Episodes Statistics, an administrative database of admissions to NHS hospitals. We identified the occurrence of any severe urinary or severe stricture-related complication within 2 years of surgery using a validated tool. Multi-level regression modelling was used to determine the association between the type of surgery and occurrence of complications, with adjustment for patient and surgical factors. RESULTS: Men undergoing RARP were least likely to experience any urinary complication (10.5%) or a stricture related complication (3.3%) compared with those who had LRP (15.8% any or 5.7% stricture-related) or ORP (19.1% any or 6.9% stricture-related). The impact of the type of surgery on the occurrence of any urinary or stricture-related complications remained statistically significant after adjustment for patient and surgical factors (P < 0.01). CONCLUSION: Men who underwent RARP had the lowest risk of developing severe urinary complications within 2 years of surgery. PMID- 29032583 TI - Third Generation Ventricular Assist Device: Mid-Term Outcomes of the HeartWare HVAD in Pediatric Patients. AB - The HeartWare HVAD is a small, third generation continuous flow pump that is intracorporeally placed for support of a failing ventricle in adult patients. This device is small in size when compared to other left ventricular assist devices and can therefore be used in smaller sized pediatric patients. We present our initial experience using the HVAD as a bridge to heart transplantation in the pediatric population. We performed a retrospective, single center, nonrandomized review of 17 pediatric patients who underwent HVAD implantation between June 2013 and March 2016. The primary endpoints evaluated in this study were overall survival to heart transplantation, ongoing device support, or death. In this patient cohort, nine (53%) of 17 patients were male. The median age of the patients was 13.4 +/- 3.8 (range 5-17) years. The median body surface area was 1.4 +/- 0.4(0.7-2) m2 . Etiologies of heart failure requiring HVAD support were dilated cardiomyopathy (n = 8), myocarditis (n = 5) and noncompaction cardiomyopathy (n = 4). The overall mean length of HVAD support was 254 +/- 298 (range 2-804) days. A successful outcome (bridge to transplant and ongoing mechanical support) was achieved in 13 patients (76.5%). Of the 13 patients, nine (69.2%) were bridged to heart transplantation and four continue to receive support (30.7%) and are eligible for transplantation. Post-transplant survival has been 100%, with a mean follow-up of 296 +/- 264.5 (range 18-785) days. The most common complication was pump thrombosis (23.5%) in follow-up. Four patients (23.5%) experienced no complications. The HVAD continuous flow ventricular assist device can be safely used to bridge pediatric patients to cardiac transplantation. Favorable outcomes of this device are comparable to the adult population. This analysis demonstrated safe and effective implantation of the HVAD System in a child with a BSA of 0.7 m2 . PMID- 29032584 TI - Assessment of microbial diversity in the rhizosphere of Pinus roxburghii (Sarg.) and bio-inoculant potential of selected pine bacterial isolates for wheat varieties based on cultureindependent and culture-dependent techniques. AB - Evidence is lacking regarding compatibility of pine bacteria as bio-inoculants for crops. The diversity and abundance of rhizosphere bacteria of Pinus roxburghii has never been investigated with simultaneous application of culture dependent and culture-independent techniques. The present study was aimed to isolate, characterise, check the bio-inoculant potential of pine bacteria and assess rhizosphere bacterial diversity using culture-independent advanced approaches. Forty bacteria isolated from the rhizoplane of P. roxburghii growing in a cold climate at high altitude in Murree, were morphologically characterised; nine were identified by 16S rRNA sequence analyses and used in experiments. Diversity and abundance of the 16S rRNA gene and nifH gene in the rhizosphere was assessed by cloning, RFLP analysis, 454-amplicon pyrosequencing and qPCR. The bacterial isolates significantly improved dry weight of shoot, root, root area, IAA and GA3 content, number of grains plant-1 , weight of grains plant-1 in wheat varieties Chakwal-50 and Fareed-06 under axenic and field conditions. The number of 16S rRNA sequences (2979) identified by pyrosequencing shared similarity with 13 phyla of bacteria and archaea. The results confirm the existence of diverse bacteria of agricultural and industrial importance in the rhizosphere and compatibility of rhizoplane bacteria as bio-inoculants for wheat varieties. PMID- 29032585 TI - Infection surveillance in pediatric hematopoietic stem cell transplantation recipients. AB - OBJECTIVE: To describe the profile of reported healthcare-associated infections (HAIs) in pediatric patients submitted to hematopoietic stem cell transplantation (HSCT) at a reference center. METHODS: Retrospective cohort of pediatric patients who were submitted to HSCT from 2008 to 2016. The criteria for HAI were based on those established by the National Healthcare Safety Network. Data were collected by active surveillance performed daily by professionals. This study was approved by the institutional research ethics committee. RESULTS: A total of 86 HSCTs were performed in 81 patients younger than 18 years of age (median, 10 years). Of these, 69 (85%) were males. Aplastic anemia and leukemia were the main diagnoses. A total of 140 HAIs were diagnosed with an incidence density of 28.2 infections/1000 patient-days. The most common HAI was laboratory-confirmed bloodstream infection (46), the majority of which was reported to be central venous catheter-associated (43). Gram-negative bacteria were the most prevalent microorganisms (58.5%). Almost all the infections occurred until 30 days after transplantation, and 17 deaths were observed within 180 days after the procedure. CONCLUSION: Active surveillance of HAIs in HSCT children allowed the evaluation of the incidence and profile of HAIs, which is essential for the health care of these patients. PMID- 29032586 TI - Cohesion and centromere activity are required for phosphorylation of histone H3 in maize. AB - Haspin-mediated phosphorylation of histone H3 at threonine 3 (H3T3ph) promotes proper deposition of Aurora B at the inner centromere to ensure faithful chromosome segregation in metazoans. However, the function of H3T3ph remains relatively unexplored in plants. Here, we show that in maize (Zea mays L.) mitotic cells, H3T3ph is concentrated at pericentromeric and centromeric regions. Additional weak H3T3ph signals occur between cohered sister chromatids at prometaphase. Immunostaining on dicentric chromosomes reveals that an inactive centromere cannot maintain H3T3ph at metaphase, indicating that a functional centromere is required for H3T3 phosphorylation. H3T3ph locates at a newly formed centromeric region that lacks detectable CentC sequences and strongly reduced CRM and ZmBs repeat sequences at metaphase II. These results suggest that centromeric localization of H3T3ph is not dependent on centromeric sequences. In maize meiocytes, H3T3 phosphorylation occurs at the late diakinesis and extends to the entire chromosome at metaphase I, but is exclusively limited to the centromere at metaphase II. The H3T3ph signals are absent in the afd1 (absence of first division) and sgo1 (shugoshin) mutants during meiosis II when the sister chromatids exhibit random distribution. Further, we show that H3T3ph is mainly located at the pericentromere during meiotic prophase II but is restricted to the inner centromere at metaphase II. We propose that this relocation of H3T3ph depends on tension at the centromere and is required to promote bi-orientation of sister chromatids. PMID- 29032587 TI - Team preparation for human uterus transplantation: Autologous transplantation in sheep model. AB - We performed autologous uterus transplantation using the living-sheep donor model for team preparation before human uterine transplantation. Five sequential operations (in 3 ewes) were prospectively conducted. Surgical technique included uterus retrieval, graft preparation, and uterus transplantation. Anastomoses were performed at the level of the external iliac. At 3-week follow-up, the uterus and anastomoses were checked for strictures and thrombosis. Two successful auto transplantations were made, and one failed because of undeveloped uterine arteries (< 1 mm in diameter). In the first two ewes, we identified and used a deep, separate uterine vein, which was not described in other publications. In the third ewe, we used the utero-ovarian vein. The team was able to perform safe dissection and auto-transplantation, with no signs of strictures or thrombosis after 3 weeks. Cold ischemic time was 60 minutes, and warm ischemic time was between 40 and 60 minutes, with no need for re-anastomoses. We noticed that using the deep uterine vein in the sheep model can anatomically simulate better the human uterine vein and the difficulty to approach it. To avoid using unsuitable vessels for anastomoses, the uterine transplantation protocol in humans should include imaging of the donor's uterine vessels. PMID- 29032588 TI - Clinical significance of lactate clearance for the development of early allograft dysfunction and short-term prognosis in deceased donor liver transplantation. AB - This retrospective study evaluated lactate clearance (LC), measured at 6, 12, 18, and 24 hours after reperfusion, as a predictor of early allograft dysfunction (EAD) and short-term outcomes in patients receiving deceased donor liver transplantation. Of 181 transplant recipients, 44 (24.3%) developed EAD and had lower LCs than those who did not develop EAD. A receiver operating characteristic analysis showed that LC determined at 6 hours showed the highest area under curve value of 0.828 (95% confidence interval [CI]: 0.755-0.990) for predicting the development of EAD at a cutoff value of 25.8% with 76.7% sensitivity and 77.9% specificity. LC values that fell below the cutoff values were significantly associated with EAD in a multivariate analysis, with values at 6 hours having the highest adjusted odds ratio (11.891, 95% CI: 4.469-31.639). In-hospital and 6 month mortalities were higher in patients with LC values below the cutoffs compared with those above the cutoff values at each time point. Thus, LC calculated shortly after reperfusion of an allograft is significantly discriminative for the development of EAD and is associated with short-term prognosis after deceased donor liver transplantation. PMID- 29032589 TI - Microscopic assessment of the tissue-sparing potential of radiofrequency-assisted liver resection techniques in a porcine model. AB - BACKGROUND: The aim of the present study was to microscopically assess the tissue sparing potential of contemporary radiofrequency-assisted liver resection (RF-LR) techniques. METHODS: Twenty-four pigs were subjected to either (1) partial hepatectomy (PH) using the sequential-coagulate-cut (SCC) technique (group SCC, n = 6) using a monopolar electrode, the technique using the bipolar electrode Habib 4X (group H, n = 6) or the "crush-clamp" technique (group CC, n = 6); or (2) sham operation (group Sham, n = 6). At 48 h post-operation, liver parenchyma proximal to the ablation rim was excised for histopathologic examination and immunohistochemical assessment of apoptosis (antibody M30) and inflammatory response (antibodies IL-6, TNFalpha and NFkappaB). RESULTS: Histopathologic index increased from the 1st to the 4th , the 1st to the 2nd or only the 1st cm from the inner margin of the ablation rim in group SCC, H or CC, respectively. The index was higher in group SCC compared to the other groups. Tissue expression of M30, IL-6, TNFalpha and NFkappaB increased in all PH groups, being higher and more expanded in group SCC, H, SCC and SCC, respectively. CONCLUSIONS: RF-LR techniques had variable microscopically assessed tissue-sparing effect. The Habib 4X proved to be less injurious compared to the SCC Belgrade technique regarding the severity and extent of tissue damage proximal to the ablation rim. PMID- 29032590 TI - A scoping approach to systematically review published reviews: Adaptations and recommendations. AB - Knowledge translation is a central focus of the health research community, which includes strategies to synthesize published research to support uptake within health care practice and policy arenas. Within the literature concerning review methodologies, a new discussion has emerged concerning methods that review and synthesize published review articles. In this paper, our multidisciplinary team from family medicine, nursing, dental hygiene, kinesiology, occupational therapy, physiology, population health, clinical psychology, and library sciences contributes to this discussion by sharing our experiences in conducting 3 scoping reviews of published review studies. A brief discussion of Cochrane Collaboration overview reviews and Joanna Briggs Institute umbrella reviews foreshadows a discussion of insights from our experiences of conducting the 3 scoping reviews of published reviews. We address 6 adaptations along with our recommendations for each, which may guide other researchers with designing scoping review approaches to synthesize published reviews. The ability of researchers to publish research findings is growing, and our ability to effectively transfer findings into useful evidence for health care practice and policy is imperative to our work. PMID- 29032592 TI - Arabidopsis EARLY FLOWERING3 increases salt tolerance by suppressing salt stress response pathways. AB - Arabidopsis EARLY FLOWERING3 (ELF3) functions in modulating light input to the circadian clock, as a component of ELF3-ELF4-LUX ARRHYTHMO (LUX) evening complex. However, the role of ELF3 in stress responses remains largely unknown. In this study, we show that ELF3 enhances plants' resilience to salt stress: ELF3 overexpressing (ELF3-OX) plants are salt-tolerant, while elf3 mutants are more sensitive to salt stress. The expressions of many salt stress- and senescence associated genes are altered in elf3-1 and ELF3-OX plants compared with wild type. During salt stress, ELF3 suppresses factors that promote salt stress response pathways, mainly GIGANTEA (GI), at the post-translational level, and PHYTOCHROME INTERACTING FACTOR4 (PIF4), at the transcriptional level. To enhance the salt stress response, PIF4 directly downregulates the transcription of JUNGBRUNNEN1 (JUB1/ANAC042), encoding a transcription factor that upregulates the expression of stress tolerance genes, DREB2A and DELLA. Furthermore, PIF4 directly upregulates the transcription of ORESARA1 (ORE1/ANAC092) and SAG29, positive regulators of salt stress response pathways. Based on our results, we propose that ELF3 modulates key regulatory components in salt stress response pathways at the transcriptional and post-translational levels. PMID- 29032593 TI - Association analysis of the ACTN3 R577X polymorphism with passive muscle stiffness and muscle strain injury. AB - Passive muscle stiffness is considered to be a major factor affecting joint flexibility and is thought to relate to the occurrence of muscle strain injury. In skinned muscle fiber experiments, the R577X polymorphism of the alpha-actinin 3 gene (ACTN3) has been associated with passive muscle stiffness. Our primary purpose was to clarify whether the ACTN3 R577X polymorphism influences passive stiffness of human muscle in vivo. We also examined whether the ACTN3 R577X polymorphism is associated with the occurrence of hamstring strain injury. Seventy-six healthy young male subjects were genotyped for the ACTN3 R577X (rs1815739) polymorphism. Shear modulus (an index of stiffness) of each hamstring muscle (biceps femoris, semitendinosus, and semimembranosus) was assessed using ultrasound shear wave elastography, and history of hamstring strain injury was collected via a questionnaire. The muscle shear moduli of the semitendinosus and semimembranosus were significantly higher in R-allele (RR + RX genotype) carriers than in XX genotype carriers, whereas the shear modulus of the biceps femoris did not differ among the ACTN3 R577X genotypes. Frequency of past hamstring strain injury also did not differ between the 3 genotypes nor between the R-allele and XX genotype carriers. This study indicates that RR and RX genotypes of the ACTN3 R577X polymorphism (corresponding to the presence of alpha-actinin-3 in type II muscle fibers) are associated with increased passive muscle stiffness of the human hamstring in vivo. However, this altered mechanical property might not affect the risk of hamstring muscle strain injury. PMID- 29032594 TI - Implementation of AICAR analysis by GC-C-IRMS for anti-doping purposes. AB - AICAR (5-aminoimidazole-4-carboxamide-1-beta-D-ribofuranoside), is a naturally occurring substance which is part to the World Anti-Doping Agency (WADA) Prohibited List. It is claimed to improve physical performance when administered as a supplement. As for other endogenous compounds such as steroids, the gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS) analysis remains an efficient tool to differentiate endogenous substances from exogenous ones. A protocol was described in the literature for the analysis of AICAR by GC C-IRMS. The aim of the present study was to implement this protocol in our laboratory and to propose solutions to avoid the difficulties encountered. The first point discussed in this study is the derivatization step. Due to the structure of the AICAR molecule, conventional derivatization for GC-C-IRMS such as acetylation could not be applied and silylation was preferred. The improvement of the derivatives stability was achieved thanks to several derivatization conditions tested. This adjustment led to a reproducible derivatization pattern with the 3-TMS form as major derivative product. The second point discussed in this study is the diminution of extracts' background noise. Indeed, the implementation of the published protocol was not easy due to high performance liquid chromatography (HPLC) problems encountered when concentrated urine was injected into our system. Also, too many interferences in the endogenous reference compound fractions were observed. The addition of both a wash step before the HPLC purification and a HPLC purification step for the endogenous reference compound (ERC) fraction allowed us to increase the robustness of the method. This study presents the modified protocol compared to the original protocol as well as the evaluation of the whole method performances. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29032595 TI - Born at the right time? A conceptual framework linking reproduction, development, and settlement in reef fish. AB - Parents are expected to make decisions about reproductive timing and investment that maximize their own fitness, even if this does not maximize the fitness of each individual offspring. When offspring survival is uncertain, selection typically favors iteroparity, which means that offspring born at some times can be disadvantaged, while others get lucky. The eventual fate of offspring may be further modified by their own decisions. Are fates of offspring set by birthdates (i.e., determined by parents), or can offspring improve upon the cards they've been dealt? If so, do we see adaptive plasticity in the developmental timing of offspring? We evaluate these questions for a coral reef fish (the sixbar wrasse, Thalassoma hardwicke) that is characterized by extreme iteroparity and flexible larval development. Specifically, we monitored larval settlement to 192 small reefs over 11 lunar months and found that most fish settled during new moons of a lunar cycle (consistent with preferential settlement on dark nights). Settlement was significantly lower than expected by chance during the full moon and last quarter of the lunar cycle (consistent with avoidance of bright nights). Survival after settlement was greatest for fish that settled during times of decreasing lunar illumination (from last quarter to new moon). Fish that settled on the last quarter of the lunar cycle were ~10% larger than fish that settled during other periods, suggesting larvae delay settlement to avoid the full moon. These results are consistent with a numerical model that predicts plasticity in larval development time that enables avoidance of settlement during bright periods. Collectively, our results suggest that fish with inauspicious birthdates may alter their developmental trajectories to settle at better times. We speculate that such interactions between parent and offspring strategies may reinforce the evolution of extreme iteroparity and drive population dynamics, by increasing the survival of offspring born at the "wrong" time by allowing them to avoid the riskiest times of settlement. PMID- 29032596 TI - Limited effect of adaptive immune response to control encephalitozoonosis. AB - This study revises our understanding of the effectiveness of cell-mediated adaptive immunity and treatment against microsporidia using molecular detection and quantification of microsporidia in immunocompetent C57Bl/6 and immunodeficient CD4-/- and CD8-/- mice for the first time. We demonstrate an intense dissemination of microsporidia into most organs within the first weeks post-infection in all strains of mice, followed by a chronic infection characterized by microsporidia persistence in CD4-/- and C57Bl/6 mice and a lethal outcome for CD8-/- mice. Albendazole application reduces microsporidia burden in C57Bl/6 and CD4-/- mice, whereas CD8-/- mice experience only a temporary effect of the treatment. Surprisingly, treated CD8-/- mice survived the entire experimental duration despite enormous microsporidia burden. On the basis of our results, we conclude that microsporidia survive despite the presence of immune mechanisms and treatments that are currently considered to be effective and therefore that CD8 T lymphocytes represent a major, but not sole effector mechanism controlling microsporidiosis. Furthermore, the survival of mice does not correspond to spore burden, which provides new insight into latent microsporidiosis from an epidemiological point of view. PMID- 29032597 TI - Congenital cytomegalovirus in Japan: More than 2 year follow up of infected newborns. AB - BACKGROUND: The aim of this study was to evaluate the outcome of congenital cytomegalovirus (CMV) infection identified on urine-filter screening assay at >2 years' follow up, and to observe the clinical outcomes after anti-CMV treatment. METHODS: Sixty of 72 congenital CMV patients were enrolled and clinically observed for >2 years. Forty-three were asymptomatic at birth; seven were symptomatic at birth but untreated with anti-CMV drugs; and 10 were symptomatic and treated with anti-CMV drugs. RESULTS: Of the 43 asymptomatic patients, three developed hearing loss or language disability for which association with congenital CMV has been repeatedly reported, and two had neurological sequelae of which the etiology was unclear, indicating that the rate of CMV-associated late onset sequelae was 7-12%. All seven symptomatic infants without treatment developed sequelae, while three of the 10 treated patients were free from any sequelae. CONCLUSIONS: The rate of late-onset sequelae observed in Japan is similar to that reported in the USA and Europe. The treatment of symptomatic patients with antiviral agents results in favorable clinical outcomes. Thus, newborn urine-filter paper screening of congenital CMV infection is warranted. PMID- 29032598 TI - Ynamide Preactivation Allows a Regio- and Stereoselective Synthesis of alpha,beta Disubstituted Enamides. AB - A novel ynamide preactivation strategy enables the use of otherwise incompatible reagents and allows preparation of alpha,beta-disubstituted enamides with high regio- and stereoselectivity. Mechanistic analysis reveals the intermediacy of a triflate-bound intermediate as a solution-stable, effective keteniminium reservoir, whilst still allowing subsequent addition of organometallic reagents. PMID- 29032599 TI - IMPACT-III is a valid and reliable questionnaire for assessing health-related quality of life in Swedish children with inflammatory bowel disease. AB - AIM: This study examined the reliability, validity and factor structure of the Swedish version of the IMPACT-III questionnaire for assessing health-related quality of life in children with inflammatory bowel disease. METHODS: We recruited 202 participants aged eight to 18 years, who were enrolled from 16 of the 23 paediatric gastroenterology clinics across Sweden during 2010-2013. This cross-sectional study compared two versions of the IMPACT-III questionnaire - one with six factors and 35 items and one with four factors and 19 items - plus the Paediatric Quality of Life Inventory 4.0 Generic Core Scale. Disease activity was assessed and defined as active or inactive. RESULTS: The mean total score for the six-factor IMPACT-III scale was 143.7/175, with a standard deviation (SD) of 17.9. There was a significant difference in mean total scores between the 133 children with inactive disease (147.8, SD: 14.9) and the 52 with active disease (133.0, SD: 20.3). Confirmatory factor analysis showed that the four-factor scale was more robust than the original six-factor scale. Concurrent validity and discriminant validity were high for both versions. CONCLUSION: The Swedish version of the IMPACT-III questionnaire was valid and reliable, but the shorter, four-factor version is quicker and may be more convenient in clinical settings. PMID- 29032600 TI - Synthesis and Characterization of the Hemi-Salen Ligands and Their Triboron Complexes: Spectroscopy and Examination of Anticancer Properties. AB - The synthesis, spectroscopic properties, and in vitro cytotoxicity activity of a series of various salen-based triboron complexes have been designed and prepared from hemi-salen (L1 H3 - L4 H3 ) ligands and BF3 .Et2 O or BPh3 under simple reaction conditions. The hemi-salen (L1 H3 - L4 H3 ) ligands and their BF2 or BPh2 chelating triboron complexes were characterized by means of NMR (1 H, 13 C, 19 F, and 11 B) spectra, FT-IR spectra, UV/VIS spectra, fluorescence spectra, mass spectra, melting point, as well as elemental analysis. The triboron [L(1 - 4) (BF2 )3 ] and [L(1 - 4) (BPh2 )3 ] complexes were investigated for their absorption and emission properties, and these complexes are also good chelates towards boron(III) fragments such as BF2 or BPh2 quantum yield in solution reaching up to 38%. The hemi-salen (L1 H3 - L4 H3 ) ligands and their BF2 or BPh2 chelating triboron complexes were tested for the in vitro anticancer activity against various cancer and normal cells (HeLa, DLD-1, ECC-1, PC-3, PNT 1A, and CRL-4010), and it was found that the cell viability of cancer cells was decreased while most of the healthy cells could still be viable. Also, the cytotoxicity studies showed that anticancer activity of hemi-salen (L1 H3 - L4 H3 ) ligands is higher than that of triboron [L(1 - 4) (BF2 )3 ] and [L(1 - 4) (BPh2 )3 ] complexes. The hemi-salen (L1 H3 - L4 H3 ) ligands showing the strongest cytotoxic effect in PC-3 cells were found to exhibit anticancer activity with apoptosis by increasing the level of ROS in the PC-3 cells. PMID- 29032602 TI - Muscle-specific differences in expression and phosphorylation of the Janus kinase 2/Signal Transducer and Activator of Transcription 3 following long-term mechanical ventilation and immobilization in rats. AB - AIM: Muscle wasting is one of the factors most strongly predicting mortality and morbidity in critically ill intensive care unit (ICU). This muscle wasting affects both limb and respiratory muscles, but the understanding of underlying mechanisms and muscle-specific differences remains incomplete. This study aimed at investigating the temporal expression and phosphorylation of the Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathway in muscle wasting associated with the ICU condition to characterize the JAK/STAT proteins and the related changes leading or responding to their activation during exposure to the ICU condition. METHODS: A novel experimental ICU model allowing long-term exposure to the ICU condition, immobilization and mechanical ventilation, was used in this study. Rats were pharmacologically paralysed by post-synaptic neuromuscular blockade and mechanically ventilated for durations varying between 6 hours and 14 days to study muscle-specific differences in the temporal activation of the JAK/STAT pathway in plantaris, intercostal and diaphragm muscles. RESULTS: The JAK2/STAT3 pathway was significantly activated irrespective of muscle, but muscle-specific differences were observed in the temporal activation pattern between plantaris, intercostal and diaphragm muscles. CONCLUSION: The JAK2/STAT3 pathway was differentially activated in plantaris, intercostal and diaphragm muscles in response to the ICU condition. Thus, JAK2/STAT3 inhibitors may provide an attractive pharmacological intervention strategy in immobilized ICU patients, but further experimental studies are required in the study of muscle-specific effects on muscle mass and function in response to both short- and long-term exposure to the ICU condition prior to the translation into clinical research and practice. PMID- 29032601 TI - Persistent regional and racial disparities in nondirected living kidney donation. AB - Nondirected living donors (NDLDs) are an important and growing source of kidneys to help reduce the organ shortage. In its infancy, NDLD transplantation was clustered at a few transplant centers and rarely benefited African American (AA) recipients. However, NDLDs have increased 9.4-fold since 2000, and now are often used to initiate kidney paired donation chains. Therefore, we hypothesized that the initial geographic clustering and racial disparities may have improved. We used Scientific Registry of Transplant Recipients data to compare NDLDs and their recipients between 2008-2015 and 2000-2007. We found that NDLD increased an average of 12% per year, from 20 in 2000 to 188 in 2015 (IRR: 1.12, 95% CI: 1.11 1.13, P < .001). In 2000-2007, 18.3% of recipients of NDLD kidneys were AA; this decreased in 2008-2015 to 15.7%. NDLD transplants initially became more evenly distributed across centers (Gini 0.91 in 2000 to Gini 0.69 in 2011), but then became more clustered at fewer transplant centers (Gini 0.75 in 2015). Despite the increased number of NDLDs, racial disparities have worsened and the center level distribution of NDLD transplants has narrowed in recent years. PMID- 29032603 TI - Isolated innominate artery dissection. PMID- 29032604 TI - The impact of intercenter sharing on the outcomes of pediatric split liver transplantation. AB - BACKGROUND: Split liver transplantation allows for expansion of the pool of organs available for pediatric liver transplantation. The impact of sharing segments of the same liver between centers has not been studied. STUDY DESIGN: Retrospective analysis of 24 pediatric split liver transplant cases in a recent cohort. We evaluated the outcomes of pediatric recipients who shared organs with adult patients in our own center (group A) compared to recipients who shared organs with adult patients in other centers. (group B). RESULTS: One-, 3-, and 5 year graft survival for group A was 100%, 100%, and 100% vs 83%, 71%, and 57% for group B (P = .039). Postoperative complications included biliary complications (41.7% in group A vs 50% in group B, P = .682), vascular complications (8.3% in group A vs 41.7% in group B, P = .059), and postoperative bleeding (16.7% in group A vs 25% in group B, P = .615). High-grade Clavien-Dindo complications were 0% in group A vs 33.3% in group B, P = .028. CONCLUSIONS: Organ sharing between centers appears to be associated with significantly poorer graft survival. Possible explanations include greater procurement-related injury or suboptimal vessel distribution. Future larger studies focused on this area may be helpful to formulate policy considerations. PMID- 29032605 TI - Nonapoptotic functions of Fas/CD95 in the immune response. AB - CD95 (also known as Fas) is a member of the tumor necrosis factor receptor (TNFR) superfamily. Its cognate ligand, CD95L, is implicated in immune homeostasis and immune surveillance. Mutations in this receptor are associated with a loss of apoptotic signaling and have been detected in an autoimmune disorder called autoimmune lymphoproliferative syndrome (ALPS) type Ia, which shares some clinical features with systemic lupus erythematosus (SLE). In addition, deletions and mutations of CD95 have been described in many cancers, which led researchers to initially classify this receptor as a tumor suppressor. More recent data demonstrate that CD95 engagement evokes nonapoptotic signals that promote inflammation and carcinogenesis. Transmembrane CD95L (m-CD95L) can be cleaved by metalloproteases, releasing a soluble ligand (s-CD95L). Soluble and membrane bound CD95L show different stoichiometry (homotrimer versus multimer of homotrimers, respectively), which differentially affects CD95-mediated signaling through molecular mechanisms that remain to be elucidated. This review discusses the biological roles of CD95 in light of recent experiments addressing how a death receptor can trigger both apoptotic and nonapoptotic signaling pathways. PMID- 29032606 TI - How Chi Sequence Modifies RecBCD Single-Stranded DNA Translocase Activity. AB - E. coli RecBCD initiates homologous repair as well as degrades foreign DNA. Recognition of chi sequence (5'-GCTGGTGG-3') switches RecBCD from a destructive, nucleolytic mode into a repair-active one that promotes RecA-mediated recombination. RecBCD includes a 3'-to-5' single-stranded DNA (ssDNA) translocase in RecB subunit, a 5'-to-3' translocase in RecD, and a secondary translocase activity associated with RecBC. To understand how chi specifically affects each translocase activity, we directly visualized individual RecBCD translocating along DNA substrates containing a ssDNA gap of different polarities, with or without chi. Disappearance of RecBCD from the ssDNA signals the loss of the ssDNA translocase activity. For substrates containing a ssDNA gap that RecBCD encounters in the 3'-to-5' polarity (3'-to-5' ssDNA), wild-type RecBCD disappears from the DNA substrates with similarly high percentage, either with chi or without. This suggests that (1) the 3'-to-5' translocase in RecB is unaffected by chi and (2) it is low in processivity. With substrates containing a ssDNA gap that RecBCD encounters in the 5'-to-3' polarity (5'-to-3' ssDNA), we found that the leaving percentage increases significantly with chi, implying inactivation of the 5'-to-3' translocase of RecD upon chi recognition. Surprisingly, the RecD defective mutant RecBCDK177Q showed only ~50 % leaving on 5'-to-3' ssDNA, directly revealing the presence of RecBC secondary translocase and its activity is unaffected by chi. Multiple ssDNA translocases within the RecBCD complex both before and after chi ensures processive unwinding of DNA substrates required for efficient recombination events. PMID- 29032607 TI - Erythroblast macrophage protein (Emp): Past, present, and future. AB - This review is a journey of the landmark erythroblast macrophage protein (Emp) discovered in 1994, and it walks chronologically through the progress that has been made in understanding the biological function of this protein. Historically, Emp was the first identified cell attachment molecule and is expressed in both erythroblasts and macrophages and mediates their attachments to form erythroblastic islands. The absence of Emp erythroblasts shows defects in differentiation and enucleation. Emp-deficient macrophages display immature morphology characterized by small sizes, round shapes, and the lack of cytoplasmic projections. Although the primary sequence of Emp has already been determined and its role in both erythroid and macrophage development is well established, there are major gaps in the understanding of its function at the molecular level. Recent studies had implicated its importance in actin cytoskeleton remodeling and cell migration, but the molecular mechanisms are still enigmatic. Previous studies have also demonstrated that downregulation of Emp affects the expression of mitogen-associated protein kinase 1 (MAPK1) and thymoma viral protooncogene (AKT-1) resulting in abnormal cell motility. In this review, we summarize the proposed function of Emp based on previous studies, present scenarios, and its plausible future in translational research. PMID- 29032608 TI - MicroRNA profiling reveals dysregulated microRNAs and their target gene regulatory networks in cemento-ossifying fibroma. AB - BACKGROUND: Cemento-ossifying fibroma (COF) is a benign fibro-osseous neoplasm of uncertain pathogenesis, and its treatment results in morbidity. MicroRNAs (miRNA) are small non-coding RNAs that regulate gene expression and may represent therapeutic targets. The purpose of the study was to generate a comprehensive miRNA profile of COF compared to normal bone. Additionally, the most relevant pathways and target genes of differentially expressed miRNA were investigated by in silico analysis. METHODS: Nine COF and ten normal bone samples were included in the study. miRNA profiling was carried out by using TaqMan(r) OpenArray(r) Human microRNA panel containing 754 validated human miRNAs. We identified the most relevant miRNAs target genes through the leader gene approach, using STRING and Cytoscape software. Pathways enrichment analysis was performed using DIANA miRPath. RESULTS: Eleven miRNAs were downregulated (hsa-miR-95-3p, hsa-miR-141 3p, hsa-miR-205-5p, hsa-miR-223-3p, hsa-miR-31-5p, hsa-miR-944, hsa-miR-200b-3p, hsa-miR-135b-5p, hsa-miR-31-3p, hsa-miR-223-5p and hsa-miR-200c-3p), and five were upregulated (hsa-miR-181a-5p, hsa-miR-181c-5p, hsa-miR-149-5p, hsa-miR-138 5p and hsa-miR-199a-3p) in COF compared to normal bone. Eighteen common target genes were predicted, and the leader genes approach identified the following genes involved in human COF: EZH2, XIAP, MET and TGFBR1. According to the biology of bone and COF, the most relevant KEGG pathways revealed by enrichment analysis were proteoglycans in cancer, miRNAs in cancer, pathways in cancer, p53-, PI3K Akt-, FoxO- and TGF-beta signalling pathways, which were previously found to be differentially regulated in bone neoplasms, odontogenic tumours and osteogenesis. CONCLUSION: miRNA dysregulation occurs in COF, and EZH2, XIAP, MET and TGFBR1 are potential targets for functional analysis validation. PMID- 29032609 TI - Usefulness of endoscopic ultrasonography-elastography as a predictive tool for the occurrence of pancreatic fistula after pancreatoduodenectomy. AB - BACKGROUND: Pancreatic fistula (PF) is a major complication following pancreatoduodenectomy (PD). Pancreatic texture is a risk factor for PF, but its evaluation depends on the subjective judgment. The aim of this study was to investigate whether preoperative endoscopic ultrasonography-elastography (EUS EG), which objectively assesses tissue elasticity, predict the development of PF following PD. METHODS: Fifty-nine patients who underwent EUS-EG before PD and had pancreas parenchyma histologically evaluated were included. Using histogram analysis, mean elasticity (ME), which represents tissue elasticity and is inversely correlated with pancreatic fibrosis, was calculated. RESULTS: Among 59 patients, 19 developed PF (32.2%). The ME in patients with PF was significantly higher than that in patients without PF (85.4 vs. 55.6, P < 0.001). Area under the receiver operating characteristic curve for the accuracy of pancreatic texture and ME for predicting PF were 0.718 and 0.846, respectively. When a ME of 70.0 was used as a cut-off value for predicting PF, the sensitivity and specificity were 84.2% and 80.0%, respectively. In a multivariate logistic regression analysis, only a ME of >70.0 was an independent predictor of PF (odds ratio 10.02, P = 0.008). CONCLUSIONS: Endoscopic ultrasonography-elastography may be an accurate and objective method for predicting PF following PD. PMID- 29032611 TI - Fast IRMS screening of pseudoendogenous steroids in doping analyses. AB - The detection of the abuse of pseudoendogenous steroids (testosterone and/or its precursors) is currently based, when possible, on the application of the steroid module of the World Anti-Doping Agency (WADA), athlete biological passport (ABP), implemented through the global database, ADAMS. When a suspicious sample is detected, the confirmation by isotope ratio mass spectrometry (IRMS) is required. It is well known that this confirmation procedure is time consuming and expensive and can be only applied on a reduced number of samples. In previous studies we have demonstrated that the longitudinal evaluation of the IRMS data is able to detect positive samples that otherwise will be evaluated as negative, improving the efficacy of the fight against doping in sport. This would require the analysis of a much larger volume of samples by IRMS. The aim of the present work is to describe an IRMS screening method allowing to increase the throughput of samples that can be analyzed by IRMS. The detection efficacy of the method is compared with the confirmation method in use, and to assess its robustness and applicability, all the samples of a major cycling stage competition were analyzed, with the agreement of the testing authority, under routine conditions and response times. The results obtained permit to conclude that the IRMS screening method here proposed has adequate selectivity and produces results that overlap with the already validated method currently in use permitting to analyze a much higher volume of samples even during a major event without compromising the detection capacity. Copyright (c) 2017 John Wiley & Sons, Ltd. PMID- 29032610 TI - Tokyo Guidelines 2018: diagnostic criteria and severity grading of acute cholangitis (with videos). AB - Although the diagnostic and severity grading criteria on the 2013 Tokyo Guidelines (TG13) are used worldwide as the primary standard for management of acute cholangitis (AC), they need to be validated through implementation and assessment in actual clinical practice. Here, we conduct a systematic review of the literature to validate the TG13 diagnostic and severity grading criteria for AC and propose TG18 criteria. While there is little evidence evaluating the TG13 criteria, they were validated through a large-scale case series study in Japan and Taiwan. Analyzing big data from this study confirmed that the diagnostic rate of AC based on the TG13 diagnostic criteria was higher than that based on the TG07 criteria, and that 30-day mortality in patients with a higher severity based on the TG13 severity grading criteria was significantly higher. Furthermore, a comparison of patients treated with early or urgent biliary drainage versus patients not treated this way showed no difference in 30-day mortality among patients with Grade I or Grade III AC, but significantly lower 30-day mortality in patients with Grade II AC who were treated with early or urgent biliary drainage. This suggests that the TG13 severity grading criteria can be used to identify Grade II patients whose prognoses may be improved through biliary drainage. The TG13 severity grading criteria may therefore be useful as an indicator for biliary drainage as well as a predictive factor when assessing the patient's prognosis. The TG13 diagnostic and severity grading criteria for AC can provide results quickly, are minimally invasive for the patients, and are inexpensive. We recommend that the TG13 criteria be adopted in the TG18 guidelines and used as standard practice in the clinical setting. Free full articles and mobile app of TG18 are available at: http://www.jshbps.jp/modules/en/index.php?content_id=47. Related clinical questions and references are also included. PMID- 29032613 TI - Management of ventricular perforation during revascularization of an intramyocardial left anterior descending artery. AB - Ventricular perforation during exposure of an intramyocardial left anterior descending artery (LAD) in preparation for coronary artery bypass grafting is a known surgical complication. In this report, we discuss the management of this complication which avoids closure of the LAD and a myocardial infarction. PMID- 29032612 TI - Correlation between CXCR4/CXCR7/CXCL12 chemokine axis expression and prognosis in lymph-node-positive lung cancer patients. AB - The CXCR4/CXCR7/CXCL12 chemokine axis plays important roles in the migration of tumor cells during cancer development by modulating site-specific distant metastasis including to regional lymph nodes. We investigated the correlation of these chemokine expressions to prognosis in lymph-node-positive non-small-cell lung cancer (NSCLC) patients. A total of 140 surgically resected specimens of primary site (PS) and metastatic lymph nodes (MLN) of NSCLC involving hilar and/or mediastinal lymph nodes (N1-2) were collected. CXCR4, CXCR7 and CXCL12 expressions were evaluated. Cox regression analysis was performed to determine whether these chemokines were independent prognostic factors in N1-2 NSCLC. High expression of CXCR4 in PS and CXCL12 in MLN was associated with poor overall survival (OS) (P = .025 and .033, respectively). Significant correlations between CXCR4 expression in PS and CXCL12 expression in MLN were observed (P = .040). There was significant difference in OS between 2 groups according to expressions of CXCR4 in PS and CXCL12 in MLN (P = .0033). Expression of CXCL12 in MLN was identified as an independent prognostic factor (HR 1.79, 95% CI 1.08-3.04, P = .023). CXCL12 in MLN was mainly expressed by tumor cells compared with stromal cells (56% vs 25%, respectively, P < .0001). CXCR4/CXCL12 may play roles in tumor progression in MLN and is associated with poor prognosis of lymph-node-positive NSCLC patients. PMID- 29032614 TI - Quantification of the effect of instrumentation error in objective gait assessment in the horse on hindlimb symmetry parameters. AB - BACKGROUND: Objective gait analysis is becoming more popular as a tool assisting veterinarians during the clinical lameness exam. At present, there is only limited information on the effect of misplacement of markers/motion-sensors. OBJECTIVES: To investigate and describe the effect of marker misplacement on commonly calculated pelvic symmetry parameters. STUDY DESIGN: Experimental study. METHODS: Each horse was equipped with custom-made devices consisting of several reflective markers arranged in a predefined manner with a reference marker correctly positioned regarding the anatomical landmark and several misplaced markers along the sagittal and transverse planes. Linear regression analysis was used to estimate the effect of marker misplacement. RESULTS: For the tubera sacrale, each cm of left/right misplacement led to a difference in minimum position of the pelvis (PDmin) of +/-1.67 mm (95% CI 1.54-1.8 mm) (P<0.001); maximum position of the pelvis (PDmax) was affected by +/-0.2 mm (95% CI 0.071 0.33 mm) (P = 0.003). With respect to cranial/caudal misplacement, each cm of misplacement resulted in a PDmin difference of +/-0.04 mm (95% CI -0.09 to 0.16 mm) (P = 0.56) and a PDmax difference of +/-0.008 mm (95% CI -0.13 to 0.12 mm) (P = 0.9). For the tubera coxae, each cm of vertical misplacement led to a difference in the displacement amplitude between left and right tubera coxae (Hip Hike_Diff) of +/-1.56 mm (95% CI 1.35-1.77 mm) (P<0.001); for the cranial/caudal misplacement, this was +/-0.82 mm (95% CI 0.66-0.97 mm) (P<0.001). MAIN LIMITATIONS: Only three horses were used in this experiment and the study design did not permit to determine the influence of marker misplacement on the evaluation of different degrees of lameness. CONCLUSIONS: Marker misplacement significantly affects calculated symmetry parameters of the pelvis. The observed errors are overall small but significant. In cases of mildly asymmetrical horses, this error might influence the decision-making process whereas in more severe asymmetries, the influence of the error effect may become less significant. PMID- 29032615 TI - Regulation of the prometastatic neuregulin-MMP13 axis by SRC family kinases: therapeutic implications. AB - Metastatic dissemination of tumor cells is responsible for the fatal outcome of breast cancer. Therefore, understanding the mechanisms involved in dissemination is essential for the development of new therapeutic strategies to prevent metastasis. One mechanism involved in metastatic dissemination of breast cancer cells is dependent on control of the production of matrix metalloproteinases by the neuregulins (NRGs). The NRGs are polypeptide factors that act by binding to the ErbB/HER subfamily of receptor tyrosine kinases. NRG-mediated activation of HER receptors causes an increase in the production of metalloprotease 13 (MMP13, also termed collagenase-3), which facilitates metastatic dissemination of breast tumors. In this context, we aimed to explore whether the clinically approved tyrosine kinase inhibitor dasatinib was able to neutralize this mechanism of metastatic dissemination. Here, we show that dasatinib restricted NRG-induced MMP13 upregulation, both in vitro and in vivo, and in vivo metastatic dissemination of breast cancer cells. Chemical proteomics studies showed that the main cellular targets of dasatinib were SRC family kinases (SFKs). Moreover, genetic studies showed that knockdown of SRC or YES strongly inhibited NRG induced MMP13 upregulation in vitro. Mechanistically, dasatinib treatment or knockdown of SRC also inhibited ERK1/2 kinases in vitro, which were required for NRG-induced MMP13 upregulation. These results open the possibility of clinically exploring the antitumoral action of dasatinib in those tumors in which the NRG MMP13 signaling axis may play a relevant role in the control of tumor cell dissemination. PMID- 29032616 TI - A survey on hematology-oncology pediatric AIEOP centres: The challenge of posterior reversible encephalopathy syndrome. AB - OBJECTIVES: Posterior reversible encephalopathy syndrome (PRES) is one of the most common neurological complications in hematology-oncology pediatric patients. Despite an increasingly recognized occurrence, no clear consensus exists regarding how best to manage the syndrome, because most cases of PRES have reported in single-case reports or small series. Aim of this paper is to identify incidence, clinical features, management, and outcome of PRES in a large series of hematology-oncology pediatric patients. METHODS: The cases of PRES occurred in twelve centers of the Italian Association of Pediatric Hematology and Oncology were reported. RESULTS: One hundred and twenty-four cases of PRES in 112 pediatric patients were recorded with an incidence of 2.1% and 4.7%, respectively, in acute lymphoblastic leukemia in first complete remission and hematopoietic stem cell transplantation (HSCT). The majority of cases occurred after a cycle of chemotherapy rather than after stem cell transplant. PRES after chemotherapy significantly differs from that after HSCT for diagnosis, time of presentation, risk factors, management, and outcome. CONCLUSIONS: This study demonstrates that PRES is a common neurological complication and occurring preferentially in course of induction treatment of some hematologic malignancies, as ALL and after HSCT. It also highlights great clinical differences in the management and outcome in patients with PRES occurring after chemotherapy or after HSCT. PMID- 29032617 TI - Emerging issues in complementary feeding: Global aspects. AB - The complementary feeding period (6-24 months) is a window of opportunity for preventing stunting, wasting, overweight, and obesity and for improving long-term development and health. Because WHO published its guiding principles for complementary feeding in 2003, new knowledge and evidence have been generated in the area of child feeding. The aim of this paper is to highlight some of the emerging issues in complementary feeding and potential implications on the guidelines revision. Evidence on the effect of the quality and quantity of protein and fat intake on child growth during the complementary feeding period is summarized. The increased availability of sugar-containing beverages and unhealthy snack foods and its negative effect on young child's diet is described. Negative effects of nonresponsive feeding and force feeding are also discussed, although few scientific studies have addressed these issues. There are several emerging research areas that are likely to provide a better understanding of how complementary feeding influences growth, development, and health. These include the effect of the young child's diet on body composition, gastrointestinal microbiota, and environmental enteric dysfunction. However, at present, findings from these research areas are not likely to influence guidelines. Several emerging issues will be relevant to address when complementary feeding guidelines will be updated. With the increasing prevalence of obesity globally, it is important that guidelines on complementary feeding address both prevention of undernutrition and prevention of overweight, obesity, and noncommunicable diseases later in life. PMID- 29032618 TI - Scaling-up interventions to improve infant and young child feeding in India: What will it take? AB - We assessed India's readiness to deliver infant and young child feeding (IYCF) interventions by examining elements related to policy, implementation, financing, and evidence. We based our analysis on review of (a) nutrition policy guidance and program platforms, (b) published literature on interventions to improve IYCF in India, and (c) IYCF program models implemented between 2007 and 2012. We find that Indian policies are well aligned with global technical guidance on counselling interventions. However, guidelines for complementary food supplements (CFS) need to be reexamined. Two national programs with the operational infrastructure to deliver IYCF interventions offer great potential for scale, but more operational guidance, capacity, and monitoring are needed to actively support delivery of IYCF counselling at scale by available frontline workers. Many IYCF implementation efforts to date have experimented with approaches to improve breastfeeding and initiation of complementary feeding but not with improving diet diversity or the quality of food supplements. Financing is currently inadequate to deliver CFS at scale, and governance issues affect the quality and reach of CFS. Available evidence from Indian studies supports the use of counselling strategies to improve breastfeeding practices and initiation of complementary feeding, but limited evidence exists on improving full spectrum of IYCF practices and the impact and operational aspects of CFS in India. We conclude that India is well positioned to support the full spectrum of IYCF using existing policies and delivery platforms, but capacity, financing, and evidence gaps on critical areas of programming can limit impact at scale. PMID- 29032619 TI - First foods: Why improving young children's diets matter. AB - Globally, only 52% of children aged 6-23 months meet the minimum meal frequency and a mere 29% meet the minimum dietary diversity, with large disparities across and within regions. With most of the stunting occurring during the first thousand days-from conception to age 2 years-improving complementary feeding in children 6 23 months old is an urgent priority. With this evidence in mind, UNICEF collaborated with the governments of India and Maharashtra to convene a global meeting in Mumbai, India, under the theme: First Foods: A Global Meeting to Accelerate Progress on Complementary Feeding in Young Children (November 17-18, 2015). The global meeting provided a platform that aimed to (a) synthesize the biological and implementation science on complementary feeding; (b) review the practice and experience in improving access to nutritious complementary foods and good complementary feeding practices; and (c) consolidate a strong evidence base that can inform the development of strategies and approaches to improve complementary feeding that are fit to context. This overview paper summarizes the rationale on why improving complementary foods and feeding for infants and young children matters and what it takes to improve them. It builds on the papers presented at the First Foods Global Meeting and those commissioned as a follow on to it. PMID- 29032620 TI - Evaluation of programs to improve complementary feeding in infants and young children. AB - Evaluation of complementary feeding programs is needed to enhance knowledge on what works, to document responsible use of resources, and for advocacy. Evaluation is done during program conceptualization and design, implementation, and determination of effectiveness. This paper explains the role of evaluation in the advancement of complementary feeding programs, presenting concepts and methods and illustrating them through examples. Planning and investments for evaluations should occur from the beginning of the project life cycle. Essential to evaluation is articulation of a program theory on how change would occur and what program actions are required for change. Analysis of program impact pathways makes explicit the dynamic connections in the program theory and accounts for contextual factors that could influence program effectiveness. Evaluating implementation functioning is done through addressing questions about needs, coverage, provision, and utilization using information obtained from process evaluation, operations research, and monitoring. Evaluating effectiveness is done through assessing impact, efficiency, coverage, process, and causality. Plausibility designs ask whether the program seemed to have an effect above and beyond external influences, often using a nonrandomized control group and baseline and end line measures. Probability designs ask whether there was an effect using a randomized control group. Evaluations may not be able to use randomization, particularly for programs implemented at a large scale. Plausibility designs, innovative designs, or innovative combinations of designs sometimes are best able to provide useful information. Further work is needed to develop practical designs for evaluation of large-scale country programs on complementary feeding. PMID- 29032621 TI - Household food insecurity and children's dietary diversity and nutrition in India. Evidence from the comprehensive nutrition survey in Maharashtra. AB - We analyse data from the 2012 Comprehensive Nutrition Survey in the State of Maharashtra, India, which surveyed 2,630 households. This is a unique dataset because in addition to nutritional status of mothers and children, it has information on diets of women and children and household food security. This rich dataset allows us to address three issues: whether household food security predicts higher diet diversity in children aged 6-23 months; whether household food security predicts lower risk of undernutrition; and whether the lower risk of undernutrition in children who live in food secure households is mediated by improved diet diversity for children. We find that children from moderately food insecure and severely food insecure households are more likely to have lower diet diversity scores. We find that the odds of a child being severely stunted, severely underweight, or severely wasted are higher in severely food insecure households. After controlling for children's diet diversity, and other child, maternal and household characteristics, we find that household food security is no longer statistically associated with stunting, wasting, or underweight. However, diet diversity of children is statistically significantly associated with whether a child is stunted or underweight. Our results although not causal provide evidence for understanding the extent to which household food insecurity affects children's diet diversity and how both these factors affect nutrition outcomes in children. Our analysis informs Government of Maharashtra's and India's National Nutrition Mission in their efforts for formulating appropriate policies and programmes to address child undernutrition. PMID- 29032622 TI - Harnessing private sector expertise to improve complementary feeding within a regulatory framework: Where is the evidence? AB - Global recognition that the complex and multicausal problems of malnutrition require all players to collaborate and to invest towards the same objective has led to increased private sector engagement as exemplified through the Scaling Up Nutrition Business Network and mechanisms for blended financing and matched funding, such as the Global Nutrition for Growth Compact. The careful steps made over the past 5 to 10 years have however not taken away or reduced the hesitation and scepticism of the public sector actors towards commercial or even social businesses. Evidence of impact or even a positive contribution of a private sector approach to intermediate nutrition outcomes is still lacking. This commentary aims to discuss the multiple ways in which private sector can leverage its expertise to improve nutrition in general, and complementary feeding in particular. It draws on specific lessons learned in Bangladesh, Cote d'Ivoire, India, Indonesia, and Madagascar on how private sector expertise has contributed, within the boundaries of a regulatory framework, to improve availability, accessibility, affordability, and adequate use of nutritious foods. It concludes that a solid evidence base regarding the contribution of private sector to complementary feeding is still lacking and that the development of a systematic learning agenda is essential to make progress in the area of private sector engagement in nutrition. PMID- 29032623 TI - Complementary feeding practices: Current global and regional estimates. AB - Insufficient quantities and inadequate quality of complementary foods, together with poor feeding practices, pose a threat to children's health and nutrition. Interventions to improve complementary feeding are critical to reduce all forms of malnutrition, and access to data to ascertain the status of complementary feeding practices is essential for efforts to improve feeding behaviours. However, sufficient data to generate estimates for the core indicators covering the complementary feeding period only became available recently. The current situation of complementary feeding at the global and regional level is reported here using data contained within the UNICEF global database. Global rates of continued breastfeeding drop from 74.0% at 1 year of age to 46.3% at 2 years of age. Nearly a third of infants 4-5 months old are already fed solid foods, whereas nearly 20% of 10-11 months old had not consumed solid foods during the day prior to their survey. Of particular concern is the low rate (28.2%) of children 6-23 months receiving at least a minimally diverse diet. Although rates for all indicators vary by background characteristics, feeding behaviours are suboptimal even in richest households, suggesting that cultural factors and poor knowledge regarding an adequate diet for young children are important to address. In summary, far too few children are benefitting from minimum complementary feeding practices. Efforts are needed not only to improve children's diets for their survival, growth, and development but also for governments to report on progress against global infant and young child feeding indicators on a regular basis. PMID- 29032624 TI - Government information systems to monitor complementary feeding programs for young children. AB - Accelerating progress to improve complementary feeding of young children is a global priority. Strengthening monitoring through government information systems may increase the quality and implementation of infant and young child feeding (IYCF) programs. Monitoring is necessary for the effective implementation of programs as it allows program managers to assess program performance, identify problems, and take corrective action. Program descriptions and conceptual models explain how program inputs and activities should lead to outputs and outcomes, and ultimately public health impact; thus, they are critical tools when designing effective IYCF programs and monitoring systems as these descriptions and conceptual models form the basis for the program and are key for developing the monitoring system, indicators, and tools. Despite their importance, many programs do not have these documented, nor monitoring plans, limiting their ability to design effective programs and monitoring systems. Once in place, it is important to periodically review the monitoring system to confirm it still appropriately meets stakeholder needs and the data are being used to inform decision-making, and to make program adjustments as the monitoring focus, resources, or capacity may change during the program lifecycle. Including priority indicators of IYCF practices and counseling indicators in the government information systems may strengthen IYCF programs when the indicators are contextualized to the government IYCF program, capacity, and setting, and the indicators are used for decision making and program improvement. PMID- 29032625 TI - The potential role of micronutrient powders to improve complementary feeding practices. AB - Micronutrient powder (MNP) interventions are often integrated within infant and young child feeding (IYCF) programmes to improve micronutrient intake from complementary foods. This review aims to describe country experiences with MNP interventions and their impact on IYCF practices and develop a framework for how MNP may strengthen complementary feeding practices. A literature review and key informant interviews were used to gather data on complementary feeding practices in MNP programme design, implementation, and evaluation. Findings from 11 MNP programmes in different geographic regions reinforced the potential of MNP interventions to add renewed focus and resources to existing IYCF programmes. MNP plays an important role in ensuring adequate micronutrient intake and reducing anaemia in young children. In some programmes, MNP users had improved IYCF practices, such as breastfeeding to 24 months and children receiving complementary foods with adequate consistency, frequency, and diversity. Our framework highlights how behaviour change communication is an essential component for influencing household actions, not only to generate demand and promote correct and sustained MNP use but also raise awareness of IYCF practices. The actions at MNP policy, delivery, and behaviour change communication levels collectively influence household IYCF practices, and formative research and monitoring and evaluation serve to inform programme design and optimize impact. In conclusion, a limited but growing body of evidence suggests that MNP interventions can contribute to improve complementary feeding practices. However, there is scope for improvement even among integrated MNP and IYCF programmes in order to realize the full potential of MNP interventions for IYCF practices. PMID- 29032626 TI - Using behavior change approaches to improve complementary feeding practices. AB - This paper applies an implementation framework, based on a behavior change model, to compare four case studies of complementary feeding programs. It aims to expand our understanding of how to design and implement behavior change interventions aimed at improving complementary feeding practices. Four programs met the selection criteria of scale and documented improvements: Bangladesh, Malawi, Peru, and Zambia. We examined commonalities and differences in the design and implementation of social and behavior change approaches, use of program delivery platforms, challenges encountered, and lessons learned. We conclude that complementary feeding practices, in particular dietary diversity, can be improved rapidly in a variety of settings using available program platforms if interventions focus on specific constraints to food access and use effective strategies to encourage caregivers to prepare and feed appropriate foods. A five step process is presented that can be applied across a range of complementary feeding programs to strengthen their impacts. PMID- 29032627 TI - Complementary feeding practices for infants and young children in South Asia. A review of evidence for action post-2015. AB - Some 37% (~64 million) South Asian children under 5 years are stunted. Most stunting occurs during the complementary feeding period (6-23 months). Our objective was to (a) characterize complementary feeding practices in South Asia and (b) review the effectiveness of information, education, and counselling (IEC) interventions aiming to improve complementary feeding in South Asia. We conducted a comprehensive review of (a) the latest nationally representative survey data and (b) peer-reviewed interventions (January 1990 to December 2015) that used IEC as the main strategy to improve complementary feeding. The analytical sample included 30,966 children aged 6-23 months. Foods made from grains are the main complementary food (76.8% of children). Only 33.2% of children are fed fruits and vegetables rich in vitamin A and a mere 17.1% are fed complementary foods containing meat, fish, poultry and/or eggs. Timely introduction, minimum meal frequency, minimum dietary diversity, and minimum acceptable diet were estimated at 57.4%, 47.7%, 33.0%, and 20.5%, respectively. The evidence on the effectiveness of IEC interventions is limited in quantity, quality, and scale. The 12 intervention studies that met the inclusion criteria indicate that IEC interventions delivered by many types of primary care workers/community resource persons using multiple contact opportunities improved the timeliness, frequency, diversity, and/or adequacy of complementary feeding. However, acceptability, availability, and affordability seem to constrain improvements in diet diversity, particularly foods of animal origin. The small size of most intervention studies and the training and/or supervision intensity of counsellors raise concerns about the potential for scale and/or sustainability of some of the interventions reviewed. PMID- 29032628 TI - Diet quality and risk of stunting among infants and young children in low- and middle-income countries. AB - Age-appropriate complementary feeding practices are far from optimal among low- and middle-income countries with available data. The evidence on the association between feeding practices and linear growth is mixed. We sought to systematically examine the association between two indictors of dietary quality-dietary diversity and animal source food (ASF) consumption (WHO, 2008)-and stunting (length-for-age z-score) employing existing data from 39 Demographic and Health Surveys. Data on 74,548 children aged 6-23 months were pooled and multiple logistic regression models, adjusting for child, maternal, and household characteristics, employed to assess the association between dietary quality and stunting. Stratified models by child age and by World Bank country-income classifications (World Bank, 2015) were also applied. Children aged 6-23 months consuming zero food groups in the previous day had a 1.345 higher odds of being stunted when compared to the reference group (>=5 food groups); those who did not consume any ASF in the previous day had a 1.436 higher odds of being stunted compared to children consuming all three types of ASF (egg, meat, and dairy). We estimated that 2,629 cases of stunting would have been averted (12.6% of those stunted) among the population studied if all children had consumed five or more food groups. Outcomes by country-income groupings showed larger associations of diet diversity and ASF consumption for upper- and lower-middle income countries compared to low-income countries. In summary, dietary diversity and ASF consumption were associated with stunting, with associations varying by stratified groups. PMID- 29032629 TI - Consumption of commercially produced snack foods and sugar-sweetened beverages during the complementary feeding period in four African and Asian urban contexts. AB - The availability and consumption of commercially produced foods and beverages have increased across low-income and middle-income countries. This cross sectional survey assessed consumption of commercially produced foods and beverages among children 6-23 months of age, and mothers' exposure to promotions for these products. Health facility-based interviews were conducted among 218 randomly sampled mothers utilizing child health services in Dakar, Senegal; 229 in Dar es Salaam, Tanzania; 228 in Kathmandu Valley, Nepal; and 222 in Phnom Penh, Cambodia. In the day prior to the interview, 58.7% of 6-23-month-olds in Dakar, 23.1% in Dar es Salaam, 74.1% in Kathmandu Valley, and 55.0% in Phnom Penh had consumed a commercially produced snack food. In the previous week, the majority of children in Dakar (79.8%), Kathmandu Valley (91.2%), and Phnom Penh (80.6%) had consumed such products. Consumption of commercially produced sugar sweetened beverages was noted among 32.0% of Phnom Penh, 29.8% of Dakar, 23.1% of Dar es Salaam, and 16.2% of Kathmandu Valley children. Maternal education was negatively associated with commercial snack food consumption in Dakar and Kathmandu Valley. Children of Phnom Penh mothers in the lowest wealth tercile were 1.5 times more likely to consume commercial snack food products, compared to wealthier mothers. These snack consumption patterns during the critical complementary feeding period demand attention; such products are often high in added sugars and salt, making them inappropriate for infants and young children. PMID- 29032630 TI - Risk factors of poor complementary feeding practices in Pakistani children aged 6 23 months: A multilevel analysis of the Demographic and Health Survey 2012-2013. AB - Appropriate feeding practices are crucial for survival, growth, and development in childhood. This paper analyzes Pakistan's Demographic and Health Survey 2012 2013 to fill the knowledge gap in risk factors of poor complementary feeding practices in Pakistani children. Multilevel models were applied to fit the multistage cluster sample of 2,827 children aged 6-23 months from 489 communities. Introduction of solid, semi-solid, or soft foods (intro) was achieved in 67% infants aged 6-8 months. Among children aged 6-23 months, the proportion of children meeting minimum meal frequency, dietary diversity (MDD), and acceptable diet criteria were 63%, 22% and 15%, respectively. Consumption of legumes and nuts, flesh foods, and vitamin A-rich fruits and vegetables was low in all children (6-19%), even among children who met the MDD criteria (15-55%). Younger child age, especially between 6 and 11 months and delayed maternal postnatal checkup were significant individual-level risk factors that consistently increased the odds of not meeting all four criteria examined. Fewer antenatal care visits predicted the odds of achieving intro and minimum meal frequency while younger maternal age and household poverty predicted the odds of achieving MDD and minimum acceptable diet. Community-level factors included geographic region and general access to maternal and child health care services. The overall poor quality of children's complementary diets in Pakistani calls for stronger policy and program action to promote the consumption of key nutrient dense foods while prioritizing interventions for the most vulnerable children and populations. PMID- 29032631 TI - Tools to improve planning, implementation, monitoring, and evaluation of complementary feeding programmes. AB - Adequate nutrient intake is a prerequisite for achieving good nutrition status. Suboptimal complementary feeding practices are a main risk factor for stunting. The need for systematic and user-friendly tools to guide the planning, implementation, monitoring, and evaluation of dietary interventions for children aged 6-23 months has been recognized. This paper describes five tools, namely, ProPAN, Optifood, Cost of the Diet, Fill the Nutrient Gap, and Monitoring Results for Equity System that can be used in different combinations to improve situation analysis, planning, implementation, monitoring, or evaluation approaches for complementary feeding in a particular context. ProPAN helps with development of strategies and activities designed to change the behaviours of the target population. Optifood provides guidance for developing food-based recommendations. The Cost of the Diet can provide insight on economic barriers to accessing a nutritious and balanced diet. The Fill the Nutrient Gap facilitates formulation of context-specific policies and programmatic approaches to improve nutrient intake, through a multistakeholder process that uses insights from linear programming and secondary data. The Monitoring Results for Equity System helps with analysis of gaps, constraints, and determinants of complementary feeding interventions and adoption of recommended practices especially in the most vulnerable and deprived populations. These tools, and support for their use, are readily available and can be used either alone and/or complementarily throughout the programme cycle to improve infant and young child-feeding programmes at subnational and national levels. PMID- 29032633 TI - 2017 Annual Meetings. PMID- 29032632 TI - Linking agriculture and nutrition education to improve infant and young child feeding: Lessons for future programmes. AB - Agriculture and food systems play a central role in nutrition by supplying nutritious, healthy and affordable foods. When integrated with nutrition education for behaviour change, agricultural interventions that supply diverse affordable foods from all food groups have great scope for improving young child and family diets. In 2014, process reviews were conducted in Cambodia and Malawi of food security projects that provided agricultural support and community-based nutrition education on improved infant and young child feeding (IYCF). In both countries, household visits were carried out with mothers/caregivers, and interviews and Focus Group Discussions (FGDs) were conducted with purposively selected project stakeholders (53 in Cambodia, 170 in Malawi), including government staff from the agriculture and health sectors. Results highlight that adoption of improved IYCF practices was facilitated by participation in nutrition education and practical cooking sessions, and supportive family and community structures. Barriers faced by families and caregivers were identified, such as women's workload and lack of access to high quality foods, namely fruits, vegetables, legumes, nuts and animal source foods. Implementation challenges regarding coordination of cross-sectoral targeting strategies and capacities of extension services to sustain community-based IYCF nutrition education need to be addressed to improve programme effectiveness and impact. The project lessons from Cambodia and Malawi are useful for integrated agriculture-IYCF nutrition education programmes to help ensure better young child nutrition outcomes. PMID- 29032634 TI - Prevalence of hepatitis C infection and its associated factors in healthy adults without identifiable route of transmission. AB - While hepatitis C virus (HCV) infection is long known to be associated with parenteral exposure, the specific route of transmission is not identified in a proportion of infected patients. Taking blood donors as the surrogate of healthy adults in the community in Hong Kong, we identified 91 HCV-infected donors (<=0.02% positive rate) in 2014-2016, of whom 46 were recruited in a mixed-method study to examine their transmission routes. A majority (75%) of the recruited donors were HCV RNA positive, with the predominant subtypes being 1b and 6a. From the results of the structured self-administered questionnaire and in-depth interviews, only 14 (30%) recruited donors could be traced to past history of contaminated blood transfusion (n = 9) or injection drug use (n = 5). Case control analyses with 3 different control groups were performed to examine factors associated with HCV infection in multivariable analyses. High-risk sexual behaviour, body piercing, intramuscular injection and vaccine inoculation abroad, having lived abroad for >3 months were significantly associated with HCV in donors with otherwise nonidentifiable source of infection. While the specific route of transmission cannot be established for each person, associations with multiple parenteral exposures outside Hong Kong were observed. The World Health Organization has advocated for the global elimination of HCV by 2030. With a high proportion of HCV-infected persons who are unaware of their infections, HCV elimination could be hard to achieve. PMID- 29032635 TI - Prevalence and natural course of occult hepatitis B virus infection in residents of 2 communities of Wuwei City, Gansu Province, China. AB - Occult hepatitis B infection (OBI) is characterized by serum hepatitis B surface antigen (HBsAg) negative and hepatitis B virus (HBV) DNA positive (HBsAg-/HBV DNA+). Occult hepatitis B infection in community-based populations has been scarcely investigated, and OBI outcomes remain unclear, especially in Wuwei, a region located in Northwest China. This region is one of the areas in China that has the highest prevalence of chronic HBV infection. A prospective study was performed in the general population of 2 towns of Wuwei from June 2011 to May 2014. A questionnaire was used to collect demographic and medical data, and serum samples were collected from the participants and stored until analysis. DNA was detected using quantitative PCR (qPCR) or nested PCR, the HBV DNA from HBV DNA positive or possible positive (below the detection limit) subjects was extracted and amplified by nested PCR, and the PCR products were sequenced. Sequence analysis was performed using the Mega 6.0 program and CLC sequence viewer software. Hepatitis B virus DNA was detected in 90 of 3,080 HBsAg-negative subjects, and the prevalence of OBI in the study population was 2.92% (90/3,080, 95% CI: 2.33%-3.51%). Hepatitis B virus genomes in 51 of 80 objects (63.75%) contained mutations in the "a" determinant of HBsAg. After 2 years follow-up, 42 of 90 HBV DNA of OBI subjects remained positive, and the natural clearance rate of OBI subjects was 53.3%. Occult hepatitis B infection prevalence in this cohort was much lower than chronic HBV infection in the same region. HBV DNA was cleared in most OBI subjects during the 2 year period. Our data suggest that some OBI may represent a late stage of resolving the HBV infection process. PMID- 29032637 TI - Electron-Proton Transfer Mechanism of Excited-State Hydrogen Transfer in Phenol (NH3 )n (n=3 and 5). AB - Excited-state hydrogen transfer (ESHT) is responsible for various photochemical processes of aromatics, including photoprotection of nuclear basis. Its mechanism is explained by internal conversion from the aromatic pipi* to pisigma* states via conical intersection. This means that the electron is transferred to a diffuse Rydberg-like sigma* orbital apart from proton migration. This picture means the electron and the proton do not move together and the dynamics are different in principle. Here, we have applied picosecond time-resolved near infrared (NIR) and infrared (IR) spectroscopy to the phenol-(NH3 )5 cluster, the benchmark system of ESHT, and monitored the electron transfer and proton motion independently. The electron transfer monitored by the NIR transition rises within 3 ps, while the overall H transfer detected by the IR absorption of NH vibration appears with a lifetime of about 20 ps. This clearly proves that the electron motion and proton migration are decoupled. Such a difference of the time evolutions between the NIR absorption and the IR transition has not been detected in a cluster with three ammonia molecules. We will report our full observation together with theoretical calculations of the potential energy surfaces of the pipi* and pisigma* states, and will discuss the ESHT mechanism and its cluster size-dependence between n=3 and 5. It is suggested that the presence and absence of a barrier in the proton transfer coordinate cause the different dynamics. PMID- 29032636 TI - Tokyo Guidelines 2018: diagnostic criteria and severity grading of acute cholecystitis (with videos). AB - The Tokyo Guidelines 2013 (TG13) for acute cholangitis and cholecystitis were globally disseminated and various clinical studies about the management of acute cholecystitis were reported by many researchers and clinicians from all over the world. The 1st edition of the Tokyo Guidelines 2007 (TG07) was revised in 2013. According to that revision, the TG13 diagnostic criteria of acute cholecystitis provided better specificity and higher diagnostic accuracy. Thorough our literature search about diagnostic criteria for acute cholecystitis, new and strong evidence that had been released from 2013 to 2017 was not found with serious and important issues about using TG13 diagnostic criteria of acute cholecystitis. On the other hand, the TG13 severity grading for acute cholecystitis has been validated in numerous studies. As a result of these reviews, the TG13 severity grading for acute cholecystitis was significantly associated with parameters including 30-day overall mortality, length of hospital stay, conversion rates to open surgery, and medical costs. In terms of severity assessment, breakthrough and intensive literature for revising severity grading was not reported. Consequently, TG13 diagnostic criteria and severity grading were judged from numerous validation studies as useful indicators in clinical practice and adopted as TG18/TG13 diagnostic criteria and severity grading of acute cholecystitis without any modification. Free full articles and mobile app of TG18 are available at: http://www.jshbps.jp/modules/en/index.php?content_id=47. Related clinical questions and references are also included. PMID- 29032638 TI - Sodium-glucose cotransporter 2 inhibitor, tofogliflozin, shows better improvements of blood glucose and insulin secretion in patients with high insulin levels at baseline. AB - AIMS/INTRODUCTION: Sodium glucose cotransporter 2 (SGLT2) inhibitors are a new class of drugs for the treatment of type 2 diabetes mellitus that improve control of plasma glucose and bodyweight, giving great hope for the clinical utility of these agents. However, it is unclear for which patients SGLT2 inhibitors will be useful. MATERIALS AND METHODS: We analyzed data from long-term tofogliflozin monotherapy in an open-label, randomized controlled trial in Japanese patients with type 2 diabetes mellitus. Patients were divided into tertiles by baseline insulin level: group low (L): insulin <=5.6 MUU/mL, group medium (M): 5.6< insulin <=10 MUU/mL and group high (H): insulin >10 MUU/mL. RESULTS: Glycated hemoglobin and fasting plasma glucose levels, along with bodyweight, were significantly reduced from the baseline in all groups. The changes in levels of plasma glucose area under the curve for 2 h, C-peptide index area under the curve for 2 h during the meal tolerance tests and the insulin secretion index were the largest in the H group. The incidence of drug-related adverse events was not different among the three groups. DISCUSSION: Although tofogliflozin was effective regardless of baseline insulin level, it showed the highest efficacy in the H group. PMID- 29032639 TI - Long-term mental wellbeing of adolescents and young adults diagnosed with venous thromboembolism: results from a multistage mixed methods study. AB - : Essentials Long-term mental wellbeing of adolescents and young adults with venous thromboembolism is unclear. This multistage mixed methods study was based on Danish nationwide registry data and interviews. Mental wellbeing is negatively impacted in the long-term and uncertainty of recurrence is pivotal. The perceived health threat is more important than disease severity for long-term mental wellbeing. SUMMARY: Background Critical and chronic illness in youth can lead to impaired mental wellbeing. Venous thromboembolism (VTE) is a potentially traumatic and life-threatening condition. Nonetheless, the long-term mental wellbeing of adolescents and young adults (AYAS) with VTE is unclear. Objectives To investigate the long-term mental wellbeing of AYAS (aged 13-33 years) diagnosed with VTE. Methods We performed a multistage mixed method study based on data from the Danish nationwide health registries, and semistructured interviews with 12 AYAS diagnosed with VTE. An integrated mixed methods interpretation of the findings was conducted through narrative weaving and joint displays. Results The integrated mixed methods interpretation showed that the mental wellbeing of AYAS with VTE had a chronic perspective, with a persistently higher risk of psychotropic drug purchase among AYAS with a first-time diagnosis of VTE than among sex-matched and age-matched population controls and AYAS with a first-time diagnosis of insulin-dependent diabetes mellitus. Impaired mental wellbeing was largely connected to a fear of recurrence and concomitant uncertainty. Therefore, it was important for the long-term mental wellbeing to navigate uncertainty. The perceived health threat played a more profound role in long-term mental wellbeing than disease severity, as the potential life threat was the pivot which pointed back to the initial VTE and forward to the perception of future health threat and the potential risk of dying of a recurrent event. Conclusion Our findings show that the long-term mental wellbeing of AYAS diagnosed with VTE is negatively affected, and highlights these patients' need for adequate support. PMID- 29032640 TI - Deciphering Diversity Indices for a Better Understanding of Microbial Communities. AB - The past decades have been a golden era during which great tasks were accomplished in the field of microbiology, including food microbiology. In the past, culture-dependent methods have been the primary choice to investigate bacterial diversity. However, using cultureindependent high-throughput sequencing of 16S rRNA genes has greatly facilitated studies exploring the microbial compositions and dynamics associated with health and diseases. These culture independent DNA-based studies generate large-scale data sets that describe the microbial composition of a certain niche. Consequently, understanding microbial diversity becomes of greater importance when investigating the composition, function, and dynamics of the microbiota associated with health and diseases. Even though there is no general agreement on which diversity index is the best to use, diversity indices have been used to compare the diversity among samples and between treatments with controls. Tools such as the Shannon- Weaver index and Simpson index can be used to describe population diversity in samples. The purpose of this review is to explain the principles of diversity indices, such as Shannon- Weaver and Simpson, to aid general microbiologists in better understanding bacterial communities. In this review, important questions concerning microbial diversity are addressed. Information from this review should facilitate evidence-based strategies to explore microbial communities. PMID- 29032641 TI - Cholic Acid Attenuates ER Stress-Induced Cell Death in Coxsackievirus-B3 Infection. AB - Coxsackievirus Type B3 (CVB3) is an enterovirus that belongs to the Picornaviridae and causes various diseases such as myocarditis and hand-foot mouth disease. However, an effective antiviral drug is still not developed. In this study, we looked for potential inhibitors of CVB3 replication by examining the survival of CVB3-infected HeLa cells. We detected an antiviral effect by cholic acid and identified it as a candidate inhibitor of CVB3 replication. Cholic acid circulates in the liver and intestines, and it helps the digestion and absorption of lipids in the small intestine. HeLa cells were cultured in 12 well plates and treated with cholic acid (1 and 10 MUg/ml) and 106 PFU/ml of CVB3. After 16 h post-infection, the cells were lysed and subjected to western blot analysis and RT-PCR. The production of the viral capsid protein VP1 was dramatically decreased, and translation initiation factor eIF4G1 cleavage was significantly inhibited by treatment with 10 MUg/ml cholic acid. Moreover, cholic acid inhibited ERK signaling in CVB3-infected HeLa cells. RT-PCR showed that the amounts of the CVB3 RNA genome and mRNA for the ER stress-related transcription factor ATF4 were significantly reduced. These results showed that cholic acid strongly reduced ER stress and CVB3 proliferation. This compound can be developed as a safe natural therapeutic agent for enterovirus infections. PMID- 29032642 TI - Characterization of ATPase Activity of Free and Immobilized Chromatophore Membrane Vesicles of Rhodobacter sphaeroides. AB - The intracytoplasmic membrane of Rhodobacter sphaeroides readily vesiculates when cells are lysed. The resulting chromatophore membrane vesicle (CMV) contains the photosynthetic machineries to synthesize ATP by ATPase. The light-dependent ATPase activity of CMV was lowered in the presence of O2, but the activity increased to the level observed under anaerobic condition when the reaction mixture was supplemented with ascorbic acid (>=0.5 mM). Cell lysis in the presence of biotinyl cap phospholipid (bcp) resulted in the incorporation of bcp into the membrane to form biotinylated CMV (bCMV), which binds to streptavidin resin at a ratio of approximately 24 MUg bacteriochlorophyll a/ml resin. The ATPase activity of CMV was not affected by biotinylation, but approximately 30% of the activity was lost by immobilization to resin. Interestingly, the remaining 70% of ATPase activity stayed constant during 7-day storage at 4 degrees C. On the contrary, the ATPase activity of bCMV without immobilization gradually decreased to approximately 40% of the initial level in the same comparison. Thus, the ATPase activity of CMV is sustainable after immobilization, and the immobilized bCMV can be used repeatedly as an ATP generator. PMID- 29032643 TI - Effects of Extended Storage of Chlorhexidine Gluconate and Benzalkonium Chloride Solutions on the Viability of Burkholderia cenocepacia. AB - Chlorhexidine gluconate (CHX) and benzalkonium chloride (BZK) formulations are frequently used as antiseptics in healthcare and consumer products. Burkholderia cepacia complex (BCC) contamination of pharmaceutical products could be due to the use of contaminated water in the manufacturing process, over-diluted antiseptic solutions in the product, and the use of outdated products, which in turn reduces the antimicrobial activity of CHX and BZK. To establish a "safe use" period following opening containers of CHX and BZK, we measured the antimicrobial effects of CHX (2-10 MUg/ml) and BZK (10-50 MUg/ml) at sublethal concentrations on six strains of Burkholderia cenocepacia using chemical and microbiological assays. CHX (2, 4, and 10 MUg/ml) and BZK (10, 20, and 50 MUg/ml) stored for 42 days at 23 degrees C showed almost the same concentration and toxicity compared with freshly prepared CHX and BZK on B. cenocepacia strains. When 5 MUg/ml CHX and 20 MUg/ml BZK were spiked to six B. cenocepacia strains with different inoculum sizes (100 -105 CFU/ml), their toxic effects were not changed for 28 days. B. cenocepacia strains in diluted CHX and BZK were detectable at concentrations up to 102 CFU/ml after incubation for 28 days at 23 degrees C. Although abiotic and biotic changes in the toxicity of both antiseptics were not observed, our results indicate that B. cenocepacia strains could remain viable in CHX and BZK for 28 days, which in turn, indicates the importance of control measures to monitor BCC contamination in pharmaceutical products. PMID- 29032644 TI - Characterization of Bacterial Community Dynamics during the Decomposition of Pig Carcasses in Simulated Soil Burial and Composting Systems. AB - Soil burial is the most widely used disposal method for infected pig carcasses, but composting has gained attention as an alternative disposal method because pig carcasses can be decomposed rapidly and safely by composting. To understand the pig carcass decomposition process in soil burial and by composting, pilot-scale test systems that simulated soil burial and composting were designed and constructed in the field. The envelope material samples were collected using special sampling devices without disturbance, and bacterial community dynamics were analyzed by high-throughput pyrosequencing for 340 days. Based on the odor gas intensity profiles, it was estimated that the active and advanced decay stages were reached earlier by composting than by soil burial. The dominant bacterial communities in the soil were aerobic and/or facultatively anaerobic gram-negative bacteria such as Pseudomonas, Gelidibacter, Mucilaginibacter, and Brevundimonas. However, the dominant bacteria in the composting system were anaerobic, thermophilic, endospore-forming, and/or halophilic gram-positive bacteria such as Pelotomaculum, Lentibacillus, Clostridium, and Caldicoprobacter. Different dominant bacteria played important roles in the decomposition of pig carcasses in the soil and compost. This study provides useful comparative date for the degradation of pig carcasses in the soil burial and composting systems. PMID- 29032645 TI - L-Glycine Alleviates Furfural-Induced Growth Inhibition during Isobutanol Production in Escherichia coli. AB - Lignocellulose is now a promising raw material for biofuel production. However, the lignin complex and crystalline cellulose require pretreatment steps for breakdown of the crystalline structure of cellulose for the generation of fermentable sugars. Moreover, several fermentation inhibitors are generated with sugar compounds, majorly furfural. The mitigation of these inhibitors is required for the further fermentation steps to proceed. Amino acids were investigated on furfural-induced growth inhibition in E. coli producing isobutanol. Glycine and serine were the most effective compounds against furfural. In minimal media, glycine conferred tolerance against furfural. From the IC50 value for inhibitors in the production media, only glycine could alleviate growth arrest for furfural, where 6 mM glycine addition led to a slight increase in growth rate and isobutanol production from 2.6 to 2.8 g/l under furfural stress. Overexpression of glycine pathway genes did not lead to alleviation. However, addition of glycine to engineered strains blocked the growth arrest and increased the isobutanol production about 2.3-fold. PMID- 29032646 TI - Soluble Prokaryotic Expression and Purification of Bioactive Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand. AB - Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is considered as an antitumor agent owing to its ability to induce apoptosis of cancer cells without imparting toxicity toward most normal cells. TRAIL is produced in poor yield because of its insoluble expression in the cytoplasm of E. coli. In this study, we achieved soluble expression of TRAIL by fusing maltose-binding protein (MBP), b'a' domain of protein disulfide isomerase (PDIb'a'), or protein disulfide isomerase at the N-terminus of TRAIL. The TRAIL was purified using subsequent immobilized metal affinity chromatography and amylose-binding chromatography, with the tag removal using tobacco etch virus protease. Approximately 4.5 mg of pure TRAIL was produced from 125 ml flask culture with a purification yield of 71.6%. The endotoxin level of the final product was 0.4 EU/MUg, as measured by the Limulus amebocyte lysate endotoxin assay. The purified TRAIL was validated and shown to cause apoptosis of HeLa cells with an EC50 and Hill coefficient of 0.6 +/- 0.03 nM and 2.41 +/- 0.15, respectively. The high level of apoptosis in HeLa cells following administration of purified TRAIL indicates the significance and novelty of this method for producing high-grade and high-yield TRAIL. PMID- 29032647 TI - Development of Cabbage Juice Medium for Industrial Production of Leuconostoc mesenteroides Starter. AB - Leuconostoc mesenteroides is used as a starter to produce high-quality kimchi products. In this study, an efficient and economical cabbage juice medium (CJM) was developed by process optimization of cabbage extraction and pasteurization and by compositional supplementation of various lacking nutrients. The pasteurized cabbage juice was determined to be a good medium candidate to cultivate L. mesenteroides, showing maximal cell numbers (9.85 * 108CFU/ml) after 24 h. Addition of sucrose and yeast extract with soy peptone resulted in increment of bacterial cell counts in CJM, showing the supplementing effect of the lacking nutrients. Furthermore, addition of shell powder gave a protective effect on bacterial cells by preventing pH decline and organic acid accumulation in CJM, resulting in a 2-fold increase of bacterial counts. The optimized composition of CJM was 70% cabbage juice diluted with water, 0.5% (w/v) sucrose, 1% (w/v) yeast extract, 1% (w/v) soy peptone, and 1.5% (w/v) ark shell powder. The CJM developed in this study was able to yield a comparable level of bacterial counts with MRS medium and reduced the cost by almost 10-fold. PMID- 29032648 TI - Kaposi's Sarcoma-Associated Herpesvirus Infection Modulates the Proliferation of Glioma Stem-Like Cells. AB - Glioblastoma multiforme is the most lethal malignant brain tumor. Despite many intensive studies, the prognosis of glioblastoma multiforme is currently very poor, with a median overall survival duration of 14 months and 2-year survival rates of less than 10%. Although viral infections have been emphasized as potential cofactors, their influences on pathways that support glioblastoma progression are not known. Some previous studies indicated that human Kaposi's sarcoma-associated herpesvirus (KSHV) was detected in healthy brains, and its microRNA was also detected in glioblastoma patients' plasma. However, a direct link between KSHV infection and glioblastoma is currently not known. In this study, we infected glioblastoma cells and glioma stem-like cells (GSCs) with KSHV to establish an in vitro cell model for KSHV-infected glioblastoma cells and glioma stem-like cells in order to identify virologic outcomes that overlap with markers of aggressive disease. Latently KSHV-infected glioblastoma cells and GSCs were successfully established. Additionally, using these cell models, we found that KSHV infection modulates the proliferation of glioma stem-like cells. PMID- 29032649 TI - Production of Bacterial Quorum Sensing Antagonists, Caffeoyl- and Feruloyl-HSL, by an Artificial Biosynthetic Pathway. AB - A new series comprising phenylacetyl-homoserine lactones (HSLs), caffeoyl-HSL and feruloyl-HSL, was biologically synthesized using an artificial de novo biosynthetic pathway. We developed an Escherichia coli system containing artificial biosynthetic pathways that yield phenylacetyl-HSLs from simple carbon sources. These artificial biosynthetic pathways contained the LuxI-type synthase gene (rpaI) in addition to caffeoyl-CoA and feruloyl-CoA biosynthetic genes, respectively. Finally, the yields for caffeoyl-HSL and feruloyl-HSL were 97.1 +/- 10.3 and 65.2 +/- 5.7 mg/l, respectively, by tyrosine-overproducing E. coli with a L-methionine feeding strategy. In a quorum sensing (QS) competition assay, feruloyl-HSL and p-coumaroyl-HSL antagonized the QS receptor TraR in Agrobacterium tumefaciens NT1, whereas caffeoyl-HSL did not. PMID- 29032650 TI - Immunomodulatory Potential of Weissella cibaria in Aged C57BL/6J Mice. AB - Aging is associated with distinct changes in immune cells and a decline in immune function, leading to increased susceptibility to infection and reduced responses to vaccination. Certain strains of lactic acid bacteria exert beneficial effects on the immune system. Previously, we reported that Weissella cibaria JW15 isolated from kimchi possesses immune stimulatory activity in vitro. In the present study, we further investigated whether oral administration of JW15 improves immune function in aged mice. Eighteen-month-old female mice were administered JW15 daily at low (JW15-L; 1 * 108 CFU/mouse) or high dosage (JW15 H; 1 * 109 CFU/mouse), or with Lactobacillus rhamnosus GG (LGG) using oral gavage. Twomonth- old female mice were included as healthy young mice. After 4 weeks, the mice were euthanized and immune profiles were analyzed using whole blood and spleen. In complete blood count analysis, the numbers of white and red blood cells were significantly increased in the JW15-L group compared with those in the old mouse (OM) control group. In addition, administration of either JW15 of LGG resulted in higher numbers of splenocytes in comparison with the OM group. Furthermore, proliferative potentials were higher in all probiotic groups than OM. Cytokines such as IFN-gamma and IL-6 were secreted at higher levels in splenocytes isolated from JW15-fed mice than in OM control mice. Similarly, mRNA expression of various cytokines was altered in the JW15 groups. Collectively, these results suggest that JW15 supplementation induces immunomodulatory effects in aged mice and indicate JW15 as a potential probiotic strain to improve immune function in aged animals. PMID- 29032651 TI - Genomic Approaches for Understanding the Characteristics of Salmonella enterica subsp. enterica Serovar Typhimurium ST1120, Isolated from Swine Feces in Korea. AB - Salmonella enterica subsp. enterica serovar Typhimurium, one of the most common foodborne pathogens, is transmitted mainly through contaminated food derived from infected animals. In this study, S. Typhimurium ST1120, an isolate from pig feces in Korea, was subjected to whole-genome analysis to understand its genomic features associated with virulence. The genome of ST1120 was found to have a circular chromosome of 4,855,001 bp (GC content 52.2%) and a plasmid of 6,863 bp (GC content 46.0%). This chromosome was predicted to have 4,558 open reading frames (ORFs), 17 pseudogenes, 22 rRNA genes, and 86 tRNA genes. Its plasmid was predicted to have three ORFs. Comparative genome analysis revealed that ST1120 was phylogenetically close to S. Typhimurium U288, a critical isolate in piggery farms and food chains in Europe. In silico functional analysis predicted that the ST1120 genome harbored multiple genes associated with virulence and stress resistance, including Salmonella pathogenicity islands (SPIs containing SPI-1 to SPI-5, SPI-13, and SPI-14), C63PI locus, ST104 prophage locus, and various antibiotic resistance genes. In accordance with these analysis results, ST1120 showed competence in invasion and survival abilities when it was added to host cells. It also exhibited robust resistance against antibiotics in comparison with other S. Typhimurium strains. This is the first report of the complete genome sequence of S. Typhimurium isolated from swine in Korea. Comparative genome analysis between ST1120 and other Salmonella strains would provide fruitful information toward understanding Salmonella host specificity and developing control measures against S. Typhimurium infection. PMID- 29032652 TI - Molecular Characterization of Salmonella Genomic Island 1 in Proteus mirabilis Isolates from Chungcheong Province, Korea. AB - The emergence and dissemination of Salmonella genomic island 1 (SGI1) are strongly associated with the occurrence of multidrug-resistant (MDR) enterobacteria in humans and animals. Diverse SGI1s have been reported among Salmonella enterica and Proteus mirabilis in several countries. We aimed to characterize SGI1 in P. mirabilis isolates from humans and chickens in Chungcheong Province, Korea. A total of 44 P. mirabilis isolates were recovered from humans (n = 20) and chickens (n = 24). Antimicrobial susceptibility was determined by disk diffusion assay. To detect and characterize SGI1s, PCR amplification and PCR mapping experiments were performed. Repetitive extragenic palindromic-PCR (REP-PCR) was performed to assess the clonality of the isolates. The four P. mirabilis strains (16.7%) from chicken harbored a SGI1, whereas none of the isolates from clinical specimens contained SGI1. The SGI1s detected in our study were all confirmed as SGI1-PmABB harboring aminoglycoside-resistant genes (aacCA5 and aadA7). In P. mirabilis isolates, the presence of SGI1-PmABB was significantly correlated with high resistance rates of the isolates to antimicrobial agents, such as gentamicin, streptomycin, and spectinomycin. Moreover, the four SGI1-bearing isolates showed the same REP-PCR patterns and that suggested both horizontal and clonal spread of the isolates. This study is the first attempt to determine SGI1s in P. mirabilis isolates in Korea. We confirmed that P. mirabilis isolates carrying SGI1-PmABB were distributed at poultry farms in Korea. The present study emphasizes the need for continuous monitoring of SGI1s to prevent spreading of the MDR genomic islands among P. mirabilis isolates from humans and animals. PMID- 29032653 TI - Bacterial Hormone-Sensitive Lipases (bHSLs): Emerging Enzymes for Biotechnological Applications. AB - Lipases are important enzymes with biotechnological applications in dairy, detergent, food, fine chemicals, and pharmaceutical industries. Specifically, hormone-sensitive lipase (HSL) is an intracellular lipase that can be stimulated by several hormones, such as catecholamine, glucagon, and adrenocorticotropic hormone. Bacterial hormone-sensitive lipases (bHSLs), which are homologous to the C-terminal domain of HSL, have alpha/beta-hydrolase fold with a catalytic triad composed of His, Asp, and Ser. These bHSLs could be used for a wide variety of industrial applications because of their high activity, broad substrate specificity, and remarkable stability. In this review, the relationships among HSLs, the microbiological origins, the crystal structures, and the biotechnological properties of bHSLs are summarized. PMID- 29032654 TI - Tyndallized Lactobacillus plantarum HY7712 Restores Whole-Body gamma-Irradiation Impaired Th Cell Differentiation in Mice. AB - In the present study, we investigated the effect of tyndallized HY7712 (tHY7712) on the expression of Th cell specific transcription factors and cytokines in whole-body gamma-irradiated mice. Oral administration of tHY7712 strongly recovered the gamma-irradiation-suppressed expression of helper T (Th) cell- and regulatory T cell-related transcription factors and cytokines, such as T-bet, Foxp3, IFN-gamma, TNF-alpha, and IL-10, and suppressed Th2 cell-associated transcription factor and cytokine GATA3 and IL-5, respectively. Furthermore, compared with the control, tHY7712 treatment also restored gamma-irradiation impaired natural killer and cytotoxic T cell activities against YAC-1 tumor cells to 97.8% and 98.6%, respectively. PMID- 29032656 TI - Haemoproteus in barn and collared scops owls from Thailand. AB - The barn owl (BO) and the collared scops owl (CSO) are common nocturnal raptors throughout Thailand. Blood samples from 23 adult BOs and 14 CSOs were collected and processed for complete blood cell counts and parasite morphological examinations. Two Haemoproteus-positive samples were processed for ultrastructural observation. Polymerase chain reaction (PCR) analysis for a partial cytochrome b gene (cytb) from Haemoproteus was performed in all samples. Haemoproteus presence detected by light microscopy was lower than that detected by PCR (30.4% and 34.8%, respectively, in BO; and 50.0% and 78.6%, respectively, in CSO). Comparative hematology revealed that Haemoproteus-positive BOs had higher mean cell hemoglobin concentration, total leukocyte, absolute heterophil, basophil, and monocyte counts than Haemoproteus-negative BOs, but no significant differences between Haemoproteus-negative and -positive CSOs. Monocyte ultrastructure analysis revealed a role in the elimination of gametocytes. Morphologically, the Haemoproteus in 3 BOs and 6 CSOs were identified as H. noctuae, while that in 1 CSO was identified as H. syrnii. Phylogenetic analysis indicated the Haemoproteus spp. in 8 BOs and 7 CSOs were not closely related to H. noctuae or H. syrnii, and the cytb of 2 CSOs was that of H. syrnii. These results should be useful for study of Haemoproteus. PMID- 29032655 TI - Microglial involvement in the development of olfactory dysfunction. AB - Olfactory impairment is the most common clinical manifestation among the elderly, and its prevalence increases sharply with age. Notably, growing evidence has shown that olfactory dysfunction is the first sign of neurodegeneration, indicating the importance of olfactory assessment as an early marker in the diagnosis of neurological disorders. In this review, we describe the nature of olfactory dysfunction and the advantage of using animal models in olfaction study, and we include a brief introduction to olfactory behavior tests widely used in this field. The contribution of microglia in the neurodegenerative processes including olfactory impairment is then discussed to provide a comprehensive description of the physiopathological role of interactions between neurons and microglia within the olfactory system. PMID- 29032657 TI - Optimization of scan delay for multi-phase computed tomography by using bolus tracking in normal canine kidney. AB - This study was performed to optimize scan delays for canine kidney by using a bolus-tracking technique. In six beagle dogs, computed tomography (CT) of the kidney was performed three times in each dog with different scan delays after a bolus-tracking trigger of 100 Hounsfield units (HU) of aortic enhancement. Delays were 5, 20, 35, and 50 sec for the first scan, 10, 25, 40, and 55 sec for the second scan, and 15, 30, 45, and 60 sec for the third scan. The renal artery-to vein contrast difference peaked at 5 sec, and the renal cortex-to-medulla contrast difference peaked at 10 sec. The renal cortex-to-medulla contrast difference approached zero at a scan delay of 30 sec after the bolus trigger. For the injection protocol used in this study, the optimal scan delay times for renal arterial, corticomedullary, and nephrographic phases were 5, 10, and 30 sec after triggering at 100 HU of aortic enhancement using the bolus-tracking technique. The bolus-tracking technique is useful in multi-phase renal CT study as it compensates for different transit times to the kidney among different animals, requires a small dose of contrast media, and does not require additional patient radiation exposure. PMID- 29032658 TI - Analysis of protein expression in Brucella abortus mutants with different growth rates by two-dimensional gel electrophoresis and LC-MS/MS peptide analysis. AB - Brucella abortus is a bacterium that causes brucellosis and is the causative agent of worldwide zoonoses. Pathogenesis of the B. abortus infection is complicated, and several researchers have attempted to elucidate the infection mechanism of B. abortus. While several proteins have been revealed as pathogenic factors by previous researchers, the underlying mechanism of B. abortus infection is unresolved. In this study, we identified proteins showing different expression levels in B. abortus mutants with different biological characteristics that were generated by random insertion of a transposon. Five mutants were selected based on biological characteristics, in particular, their growth features. Total proteins of mutant and wild-type B. abortus were purified and subjected to two dimensional gel electrophoresis. Thirty protein spots of each mutant with expression increases or decreases were selected; those with a change of more than 2-fold were compared with the wild-type. Selected spots underwent liquid chromatography tandem mass spectrometry for peptide analysis. DnaK and ClpB, involved in protein aggregation, increased. SecA and GAPDH, associated with energy metabolism, decreased in some mutants with a growth rate slower than that of the wild-type. Mutants with slower growth showed a decrease in energy metabolism-related proteins, while mutants with faster growth showed an increase in pathogenicity-related proteins. PMID- 29032659 TI - In silico analysis of putative drug and vaccine targets of the metabolic pathways of Actinobacillus pleuropneumoniae using a subtractive/comparative genomics approach. AB - Actinobacillus pleuropneumoniae is a Gram-negative bacterium that resides in the respiratory tract of pigs and causes porcine respiratory disease complex, which leads to significant losses in the pig industry worldwide. The incidence of drug resistance in this bacterium is increasing; thus, identifying new protein/gene targets for drug and vaccine development is critical. In this study, we used an in silico approach, utilizing several databases including the Kyoto Encyclopedia of Genes and Genomes (KEGG), the Database of Essential Genes (DEG), DrugBank, and Swiss-Prot to identify non-homologous essential genes and prioritize these proteins for their druggability. The results showed 20 metabolic pathways that were unique and contained 273 non-homologous proteins, of which 122 were essential. Of the 122 essential proteins, there were 95 cytoplasmic proteins and 11 transmembrane proteins, which are potentially suitable for drug and vaccine targets, respectively. Among these, 25 had at least one hit in DrugBank, and three had similarity to metabolic proteins from Mycoplasma hyopneumoniae, another pathogen causing porcine respiratory disease complex; thus, they could serve as common therapeutic targets. In conclusion, we identified glyoxylate and dicarboxylate pathways as potential targets for antimicrobial therapy and tetra acyldisaccharide 4'-kinase and 3-deoxy-D-manno-octulosonic-acid transferase as vaccine candidates against A. pleuropneumoniae. PMID- 29032662 TI - White Bile in Malignant Biliary Obstruction: A Poor Prognostic Marker. PMID- 29032660 TI - Recombinant-attenuated Salmonella Pullorum strain expressing the hemagglutinin neuraminidase protein of Newcastle disease virus (NDV) protects chickens against NDV and Salmonella Pullorum challenge. AB - Newcastle disease virus (NDV) and Salmonella Pullorum have significant damaging effects on the poultry industry, but no previous vaccine can protect poultry effectively. In this study, a recombinant-attenuated S. Pullorum strain secreting the NDV hemagglutinin-neuraminidase (HN) protein, C79-13DeltacrpDeltaasd (pYA HN), was constructed by using the suicide plasmid pREasd-mediated bacteria homologous recombination method to form a new bivalent vaccine candidate against Newcastle disease (ND) and S. Pullorum disease (PD). The effect of this vaccine candidate was compared with those of the NDV LaSota and C79-13DeltacrpDeltaasd (pYA) strains. The serum hemagglutination inhibition antibody titers, serum immunoglobulin G (IgG) antibodies, secretory IgA, and stimulation index in lymphocyte proliferation were increased significantly more (p < 0.01) in chickens inoculated with C79-13DeltacrpDeltaasd (pYA-HN) than with C79-13DeltacrpDeltaasd (pYA) but were not significantly increased compared with the chickens immunized with the LaSota live vaccine (p > 0.05). Moreover, the novel strain provides 60% and 80% protective efficacy against the NDV virulent strain F48E9 and the S. Pullorum virulent strain C79-13. In summary, in this study, a recombinant attenuated S. Pullorum strain secreting NDV HN protein was constructed. The generation of the S. Pullorum C79-13DeltacrpDeltaasd (pYA-HN) strain provides a foundation for the development of an effective living-vector double vaccine against ND and PD. PMID- 29032661 TI - A Prospective Study of Eosinophilic Esophagitis and the Expression of Tight Junction Proteins in Patients with Gastroesophageal Reflux Disease Symptoms. AB - Background/Aims: Eosinophilic esophagitis (EoE) is often erroneously diagnosed as gastroesophageal reflux disease (GERD). The aim of this study is to investigate the prevalence of EoE and the expression of tight junction (TJ) proteins in patients with GERD symptoms. Methods: One hundred patients with GERD symptoms and 10 healthy controls were prospectively studied. Sixty-two patients had symptoms refractory to proton pump inhibitors (PPI). All patients underwent esophageal biopsy. Patients were diagnosed with EoE if the number of eosinophil granulocytes per high-power field was >=15. Immunohistochemical analysis of TJ proteins (claudin-1, claudin-4, occludin, and zonula occludin-1 [ZO-1]) was performed. Results: EoE was diagnosed in six of 100 patients (6%) with GERD symptoms and in six patients (9.7%) of 62 patients with PPI-refractory GERD. Only one had typical EoE endoscopic findings. The proportion of ZO-1-positive cells was significantly lower in the lower than in the middle esophagus (56.0%+/-14.0% vs 66.0%+/-11.5%, p<0.05). There were no significant correlations between TJ protein expression and GERD symptoms. Conclusions: The prevalence of EoE among patients with PPI refractory GERD is approximately 10%. Regardless of endoscopic findings, esophageal biopsy is crucial in diagnosing EoE. The disruption of ZO-1 expression in the lower esophagus is significantly associated with GERD symptoms. PMID- 29032663 TI - Number of Metastatic Lymph Nodes and Ratio of Metastatic Lymph Nodes to Total Number of Retrieved Lymph Nodes Are Risk Factors for Recurrence in Patients With Clinically Node Negative Papillary Thyroid Carcinoma. AB - OBJECTIVES: The number of metastatic lymph nodes (LNs) and the ratio between the number of metastatic LNs and the total number of retrieved LNs (the LN ratio [LNR]) have been proposed as risk factors for recurrence of papillary thyroid carcinoma (PTC). However, the significance of the number of LNs and the LNR in patients with clinically node negative PTC has not been clearly determined. The purpose of this study is to evaluate their significance. METHODS: We retrospectively analyzed 382 patients with PTC who had undergone total thyroidectomy with prophylactic central neck dissection (CND) between January 2000 and December 2010. We excluded patients with lobectomy, concurrent lateral compartment neck dissection, a follow-up period less than at least 2 years, number of harvested central LNs less than or equal to one, clinically positive LN, distant metastasis, recurrent cancer or other types of malignancy. The correlations between recurrence and various clinicopathologic characteristics including tumor size, extrathyroidal extension (ETE), stage, number of metastatic central LNs, and the LNR were investigated. RESULTS: After a mean follow-up period of 82.2+/-26.4 months, recurrence occurred in 14 patients (3.7%). Tumor size >=20 mm, maximal ETE, presence of central LN metastasis, number of metastatic LNs >=2, and LNR >=0.31 correlated with recurrence in the univariate analysis. However, tumor size >=20 mm, maximal ETE, number of metastatic LNs >=2, and LNR >=0.31 were significantly associated with recurrence in the multivariate analysis (hazard ratio=6.61, 7.17, 3.43, and 11.23, respectively). CONCLUSION: The LNR and the number of metastatic LNs are independent prognostic risk factors for recurrence in patients with clinically node negative PTC, and these factors can be used to guide postoperative adjuvant therapy and follow-up strategy after prophylactic CND. PMID- 29032664 TI - The Protective Effect of Egb 761 Against 3-Nitropropionic Acid-Induced Hearing Loss: The Role of Sirtuin 1. AB - OBJECTIVES: Local administration of 3-nitropropionic acid (3-NP) to the inner ear induces sensorineural hearing loss. Several studies have shown the otoprotective effects of ginkgo biloba extract EGb 761. Moreover, EGb 761 has been reported to activate Sirtuin 1 (SIRT1). The present study was designed to investigate whether EGb 761 prevents 3-NP-induced sensorineural hearing loss and determine its effects on the expression of SIRT1. METHODS: Sprague Dawley rats were divided into four experimental groups: control group receiving vehicle of 3-NP, EGb group receiving EGb 761, 3-NP group receiving 3-NP, and EGb+3-NP group receiving EGb 761 and 3-NP. EGb 761 was given orally for 5 days. The 3-NP solution was injected into the tympanum 3 days after the start of EGb 761 administration. The auditory brainstem response was recorded before and after the injection. At 4 weeks after the administration of 3-NP or vehicle of 3-NP, cochleae were harvested, and hematoxylin and eosin staining and immunohistochemistry for SIRT1 antibody were performed. RESULTS: EGb+3-NP group showed significantly lower threshold shifts than 3-NP group. There was a significant preservation of type II fibrocytes and spiral ganglion cells in EGb+3-NP group than in 3-NP group. In EGb+3-NP group, there was a significantly greater number of SIRT1 immunopositive type II fibrocytes and spiral ganglion cells than in 3-NP group. Calculating the percentage of SIRT1 immunoreactive type II fibrocytes and spiral ganglion cells in viable type II fibrocytes and spiral ganglion cells, respectively, EGb+3-NP group showed significantly higher SIRT1 immunoreactive cells than 3-NP group. CONCLUSION: These results suggest that EGb 761 may prevent hearing loss induced by 3-NP in an acute ototoxic animal model, which appears to be related with SIRT1 expression. PMID- 29032665 TI - Does standoff material affect acoustic radiation force impulse elastography? A preclinical study of a modified elastography phantom. AB - PURPOSE: This study was conducted to determine the influence of standoff material on acoustic radiation force impulse (ARFI) measurements in an elasticity phantom by using two different probes. METHODS: Using ARFI elastography, 10 observers measured the shear wave velocity (SWV, m/sec) in different lesions of an elasticity phantom with a convex 4C1 probe and a linear 9L4 probe. The experimental setup was expanded by the use of an interposed piece of porcine muscle as standoff material. The probe pressure on the phantom was registered. RESULTS: Faulty ARFI measurements occurred more often when quantifying the hardest lesion (74.0 kPa 4.97 m/sec) by the 9L4 probe with the porcine muscle as a standoff material interposed between the probe and the phantom. The success rate for ARFI measurements in these series was 52.4%, compared with 99.5% in the other series. The SWV values measured with the 9L4 probe were significantly higher (3.33+/-1.39 m/sec vs. 2.60+/-0.74 m/sec, P<0.001 in the group without muscle) and were closer to the reference value than those measured with the 4C1 probe (0.25+/-0.23 m/sec vs. 0.85+/-1.21 m/sec, P<0.001 in the same group). The SWV values measured when using the muscle as a standoff material were lower than those without the muscle (significant for 9L4, P=0.040). The deviation from the reference value and the variance increased significantly with the 9L4 probe if the muscle was in situ (B=0.27, P=0.004 and B=0.32, P<0.001). In our study, the pressure exerted by the operator had no effect on the SWV values. CONCLUSION: The presence of porcine muscle acting as a standoff material influenced the occurrence of failed measurements as well as the variance and the accuracy of the measured values. The linear high-frequency probe was particularly affected. PMID- 29032667 TI - Synchronous parathyroid carcinoma and papillary thyroid carcinoma in a patient with long-standing schizophrenia. PMID- 29032666 TI - 24-Hour blood pressure response to lower dose (30 mg) fimasartan in Korean patients with mild to moderate essential hypertension. AB - BACKGROUND/AIMS: Fimasartan is an angiotensin type 1 receptor blocker (ARB) which has comparable efficacy and tolerability with other ARBs. The aim of this study was to evaluate 24-hour blood pressure (BP) lowering efficacy and the tolerability of the low dose fimasartan compared with valsartan in patients with mild to moderate hypertension. METHODS: This study was a phase II, prospective, multicenter, randomized, double-blind, parallel-grouped trial. A total of 75 hypertensive patients, whose mean ambulatory BP monitoring values were >= 135/85 mmHg, were randomized to either fimasartan 30 mg or valsartan 80 mg daily. The primary efficacy endpoint was the change in the mean 24-hour systolic BP (SBP) values from the baseline and at the week 8. Secondary endpoints included the change in the mean 24-hour diastolic BP values, the daytime and the nighttime mean BP values at week 8, the trough-to-peak (T/P) ratio and the smoothness index. RESULTS: At week 8, the mean 24-hour SBP values significantly decreased in both groups; -10.5 +/- 11.9 mmHg (p < 0.0001) in the fimasartan group and -5.5 +/ 11.6 mmHg (p = 0.0307) in the valsartan group. The difference between two groups was 4.3 +/- 2.9 mmHg but there was no statistical significance (p = 0.1392). The global T/P ratio in the fimasartan 30 mg groups were 0.48 and 0.40 in the valsartan 80 mg group, respectively (p = 0.3411). The most frequent adverse events (AEs) were acute pharyngitis and there were no cases of severe AEs. CONCLUSIONS: In mild-to-moderate hypertensive patients, low dose (30 mg) fimasartan showed comparable 24-hour BP lowering efficacy compared with valsartan (80 mg). There was no difference in tolerability between two groups. PMID- 29032668 TI - Multiple giant calcified aneurysms of three coronary arteries. PMID- 29032669 TI - Xp11.2 translocation renal cell carcinoma in the autosomal dominant polycystic kidney disease patient with preserved renal function. PMID- 29032670 TI - Kinetics and Products of the Reactions of Fluorine Atoms with ClNO and Br2 from 295 to 950 K. AB - The kinetics and products of the reactions of F atoms with Br2 and ClNO have been studied in a flow reactor coupled with an electron impact ionization mass spectrometer at nearly 2 Torr total pressure of helium and over a wide temperature range, T = 295-950 K. The rate constant of the reaction F + ClNO -> products (1) was determined under pseudo-first order conditions, monitoring the kinetics of F atom consumption in excess of ClNO. The measured temperature independent rate constant, k1 = (1.29 +/- 0.13) * 10-10 cm3 molecule-1 s-1 (T = 299-950 K), was found to be in excellent agreement with the only previous low temperature study which allowed to recommend the value of k1 in an extended temperature range, 228-950 K. FCl and Cl atoms were observed as the reactions products (corresponding to two reaction pathways: Cl-atom abstraction and replacement with fluorine atom, respectively) with the independent of temperature, in the range 295-948 K, yields of 0.68 +/- 0.10 and 0.32 +/- 0.05, respectively. Rate constant of the reaction F + Br2 (2), k2 = (1.28 +/- 0.20) * 10-10 cm3 molecule-1 s-1, determined using both absolute and relative rate methods, was found to be independent of temperature at T = 299-940 K. PMID- 29032671 TI - Spectroelectrochemical Reverse Engineering DemonstratesThat Melanin's Redox and Radical Scavenging Activities Are Linked. AB - Melanins are ubiquitous in nature but their biological activities and functions have been difficult to discern. Conventional approaches to determine material function start by resolving structure and then characterize relevant properties. These approaches have been less successful for melanins because of their complex structure and insolubility, and because their relevant properties are not readily characterized by conventional methods. Here, we report a novel spectroelectrochemical reverse engineering approach that focuses on redox and radical scavenging activities. In this method, the melanin is immobilized in a permeable hydrogel film adjacent to an electrode and this immobilized melanin is probed using diffusible mediators and complex electrical inputs. Response characteristics are measured using two modalities, electrochemical currents associated with the reaction of diffusible mediators, and optical absorbance associated with the presence of diffusible free radicals. Using this method, we observed that both Sepia and fungal melanins are redox active and can repeatedly exchange electrons to be switched between oxidized and reduced states. Further, we observed that these melanins can quench radicals either by donating or accepting electrons. Finally, we demonstrate that the melanins' radical scavenging activities are dependent on their redox state such that a melanin must be reduced to have donatable electrons to quench oxidative free radicals, or must be oxidized to accept electrons from reductive free radicals. While the observation that melanin is redox-active is consistent with their well-accepted beneficial (radical-scavenging) and detrimental (pro-oxidant) activities, these observations may also support less well-accepted proposed functions for melanin in energy harvesting and redox communication. PMID- 29032672 TI - Energy Level Engineering of MoS2 by Transition-Metal Doping for Accelerating Hydrogen Evolution Reaction. AB - Water-splitting devices for hydrogen generation through electrolysis (hydrogen evolution reaction, HER) hold great promise for clean energy. However, their practical application relies on the development of inexpensive and efficient catalysts to replace precious platinum catalysts. We previously reported that HER can be largely enhanced through finely tuning the energy level of molybdenum sulfide (MoS2) by hot electron injection from plasmonic gold nanoparticles. Under this inspiration, herein, we propose a strategy to improve the HER performance of MoS2 by engineering its energy level via direct transition-metal doping. We find that zinc-doped MoS2 (Zn-MoS2) exhibits superior electrochemical activity toward HER as evidenced by the positively shifted onset potential to -0.13 V vs RHE. A turnover of 15.44 s-1 at 300 mV overpotential is achieved, which by far exceeds the activity of MoS2 catalysts reported. The large enhancement can be attributed to the synergistic effect of electronic effect (energy level matching) and morphological effect (rich active sites) via thermodynamic and kinetic acceleration, respectively. This design opens up further opportunities for improving electrocatalysts by incorporating promoters, which broadens the understanding toward the optimization of electrocatalytic activity of these unique materials. PMID- 29032673 TI - Effects of Sulfide Concentration and Dissolved Organic Matter Characteristics on the Structure of Nanocolloidal Metacinnabar. AB - Understanding the speciation of divalent mercury (Hg(II)) in aquatic systems containing dissolved organic matter (DOM) and sulfide is necessary to predict the conversion of Hg(II) to bioavailable methylmercury. We used X-ray absorption spectroscopy to characterize the structural order of mercury in Hg(II)-DOM sulfide systems for a range of sulfide concentration (1-100 MUM), DOM aromaticity (specific ultraviolet absorbance (SUVA254)), and Hg(II)-DOM and Hg(II)-DOM sulfide equilibration times (4-142 h). In all systems, Hg(II) was present as structurally disordered nanocolloidal metacinnabar (beta-HgS). beta-HgS nanocolloids were significantly smaller or less ordered at lower sulfide concentration, as indicated by under-coordination of Hg(II) in beta-HgS. The size or structural order of beta-HgS nanocolloids increased with increasing sulfide abundance and decreased with increasing SUVA254 of the DOM. The Hg(II)-DOM or Hg(II)-DOM-sulfide equilibration times did not significantly influence the extent of structural order in nanocolloidal beta-HgS. Geochemical factors that control the structural order of nanocolloidal beta-HgS, which are expected to influence nanocolloid surface reactivity and solubility, should be considered in the context of mercury bioavailability. PMID- 29032674 TI - Doxorubicin-Loaded Unimolecular Micelle-Stabilized Gold Nanoparticles as a Theranostic Nanoplatform for Tumor-Targeted Chemotherapy and Computed Tomography Imaging. AB - Current research is mainly trending toward addressing the development of multifunctional nanocarriers that could precisely reach disease sites, release drugs in a controlled-manner, and act as an imaging agent for both diagnosis and targeted therapy. In this study, a pH-sensitive theranostic nanoplatform as a promising dual-functional nanovector for tumor therapy and computed tomography (CT) imaging was developed. The 21-arm star-like triblock polymer of beta cyclodextrin-{poly(epsilon-caprolactone)-poly(2-aminoethyl methacrylate) poly[poly(ethylene glycol) methyl ether methacrylate]}21 [beta-CD-(PCL-PAEMA PPEGMA)21] with stable unimolecular micelles formed in aqueous solution was first synthesized by combined ROP with ARGET ATRP techniques and then was used as a template for fabricating gold nanoparticles (AuNPs) with uniform sizes and excellent colloidal stability in situ followed by the encapsulation of doxorubicin (DOX) with maximum entrapment efficiency up to 60% to generate the final product beta-CD-(PCL-PAEMA-PPEGMA)21/AuNPs/DOX. Furthermore, dissipative particle dynamics (DPD) simulations revealed further details of the formation process of unimolecular micelles and the morphologies and distributions of AuNPs and DOX. Almost 80% of DOX was released in 120 h in an acidic tumoral environment in an in vitro drug release experiment, and the experiments both in vitro and in vivo demonstrated the fact that beta-CD-(PCL-PAEMA-PPEGMA)21/AuNPs/DOX exhibited similar antitumor efficacy to free DOX and effective CT imaging performance. Therefore, we believe this structurally stable unimolecular micelle-based nanoplatform synergistically integrated with anticancer drug delivery and CT imaging capabilities hold great promise for future cancer theranostics. PMID- 29032675 TI - Carbon, Hydrogen, and Nitrogen Isotope Fractionation Trends in N Nitrosodimethylamine Reflect the Formation Pathway during Chloramination of Tertiary Amines. AB - Assessing the precursors and reactions leading to the carcinogenic N nitrosodimethylamine (NDMA) during drinking water disinfection is a major challenge. Here, we investigate whether changes of 13C/12C, 2H/1H, and 15N/14N ratios of NDMA give rise to isotope fractionation trends that can be used to infer NDMA formation pathways. We carried out compound-specific isotope analysis (CSIA) of NDMA during chloramination of four tertiary amines that produce NDMA at high yields, namely ranitidine, 5-(dimethylaminomethyl)furfuryl alcohol, N,N dimethylthiophene-2-methylamine, and N,N-dimethylbenzylamine. Carbon and hydrogen isotope ratios of NDMA function as fingerprints of the N(CH3)2 moiety and exhibit only minor isotope fractionation during the disinfection process. Nitrogen isotope ratios showed that NH2Cl is the source of the N atom of the nitroso group. The large enrichment of 15N in NDMA was indicative of the isotope effects pertinent to bond-cleavage and bond-formation reactions during chloramination of the tertiary amines. Correlation of delta15N versus delta13C values of NDMA resulted in trend lines that were not affected by the type of tertiary amine and treatment conditions, suggesting that the observed C and N isotope fractionation in NDMA may be diagnostic for NDMA precursors and formation pathways during chloramination. PMID- 29032677 TI - Ultrasensitive Ratiometric Homogeneous Electrochemical MicroRNA Biosensing via Target-Triggered Ru(III) Release and Redox Recycling. AB - A new label-free and enzyme-free ratiometric homogeneous electrochemical microRNA biosensing platform was constructed via target-triggered Ru(III) release and redox recycling. To design the effective ratiometric dual-signal strategy, [Ru(NH3)6]3+ (Ru(III)), as one of the electroactive probes, was ingeniously entrapped in the pores of the positively charged mesoporous silica nanoparticle (PMSN), and another electroactive probe, [Fe(CN)6]3- (Fe(III)), was selected to facilitate Ru(III) redox recycling due to its distinctly separated reduction potential and different redox properties. Owing to the liberation of the formed RNA-ssDNA complex from PMSN, the target miRNA triggered the Ru(III) release and was quickly electroreduced to Ru(II), and then, the in-site-generated Ru(II) could be chemically oxidized back to Ru(III) by Fe(III). Thus, with the release of Ru(III) and the consumption of Fe(III), a significant enhancement for the ratio of electroreduction current [Ru(NH3)6]3+ over [Fe(CN)6]3- (IRu(III)/IFe(III)) value was observed, which was dependent on the concentration of the target miRNA. Consequently, a simple, accurate, and ultrasensitive method for the miRNA assay was readily realized. Furthermore, the limit of detection (LOD) of our method was down to 33 aM (S/N = 3), comparable or even superior to other approaches reported in literature. More importantly, it also exhibited excellent analytical performance in the complex biological matrix cell lysates. Therefore, this homogeneous biosensing strategy not only provides an ingenious idea for realizing simple, rapid, reliable, and ultrasensitive bioassays but also has a great potential to be adopted as a powerful tool for precision medicine. PMID- 29032676 TI - Following the Molecular Mechanism of Decarbonylation of Unsaturated Cyclic Ketones Using Bonding Evolution Theory Coupled with NCI Analysis. AB - The synergetic use of bonding evolution theory (BET) and noncovalent interaction (NCI) analysis allows to obtain new insight into the bond breaking/forming processes and electron redistribution along the reaction path to understand the molecular mechanism of a reaction and recognize regions of strong and weak electron pairing. This viewpoint has been considered for cheletropic extrusion of CO from unsaturated cyclic ketones cyclohepta-3,5-dien-1-one CHD, cyclopent-3-en 1-one CPE, and bicyclo[2.2.1]hept-2-en-7-one BCH by using hybrid functional MPWB1K in conjugation with aug-cc-pVTZ basis set. Decarbonylation of CHD, CPE, and BCH are nonpolar cyclo-elimination reactions that are characterized by the sequence of turning points (TPs) as CHD, 1-11-C[CC]C?C?FFFTSC?C?C?-0:HT + CO; CPE, 1-8-CC[C?C?F?][FF][FF]FTS[C?C?]-0:BD + CO; and BCH, 1-8 CC[C?C?]F[FF]FTS[C?C?]-0:CD + CO. Breaking of C-C bond between the terminal carbon atoms of diene/triene framework and carbon atom of CO fragment starts at a distance of ca. 1.9-2.0 A in the vicinity of the transition structure where the transition states are not reached yet. NCI analysis explains that the noncovalent interactions between two fragments appeared after the breaking of C-C bonds. PMID- 29032678 TI - Marangoni Effect-Driven Motion of Miniature Robots and Generation of Electricity on Water. AB - The well-known Marangoni effect perfectly supports the dynamic mechanism of organic solvent-swollen gels on water. On this basis, we report a series of energy conversion processes of concentrated droplets of polyvinylidene fluoride/dimethyl formamide (PVDF/DMF) that can transfer chemical-free energy to kinetic energy to rapidly rotate itself on water. This droplet (22.2 mg) is capable to offer kinetic energy of 0.099 MUJ to propel an artificial paper rocket of 31.8 mg to move over 560 cm on water at an initial velocity of 7.9 cm s-1. As the droplet increases to 35.0 mg, a paper goldfish of 10.6 mg can be driven to swim longer at a higher initial velocity of 20 cm s-1. The kinetic energy of the droplet can be further converted to electrical energy through an electromagnetic generator, in which as a 0.5 MOmega resistor is loaded, the peak output reaches 6.5 mV that corresponds to the power density of 0.293 MUW kg-1. We believe that this report would open up a promising avenue to exploit energies for applications in miniature robotics. PMID- 29032680 TI - Accelerating Gold Nanorod Synthesis with Nanomolar Concentrations of Poly(vinylpyrrolidone). AB - A novel modification for the seedless synthesis of gold nanorods (AuNRs) has been developed. Nanomolar concentrations of 10 kDa poly(vinylpyrrolidone) (PVP) can be introduced to a growth solution containing 25, 50, or 100 mM cetyltrimethylammonium bromide (CTAB) to significantly reduce the dimensions of AuNRs. We found that PVP accelerates the growth rate of AuNRs by more than two times that of nanorods grown in 50 and 100 mM CTAB solutions. Additionally, there is a time-dependent effect of adding PVP to the nanorod growth solution that can be utilized to tune their aspect ratio. Because the concentration of PVP is far below the concentration of HAuCl4 in the reaction mixture, PVP primarily functions not as a reducing agent, but as a capping or templating ligand to stabilize the growing nanorods. Our reproducible protocol enables the synthesis of AuNRs in high yield with tunable sizes: 45 * 6.7, 28 * 5.5, and 12 * 4.5 nm for 100, 50, and 25 mM CTAB, respectively. We estimated the number of PVP chains per nanorod in growth solutions to be around 30, which suggests that the effect on the aspect ratio is caused by a direct interaction between the AuNR surface and the PVP. PMID- 29032679 TI - Mapping Free-Carriers in Multijunction Silicon Nanowires Using Infrared Near Field Optical Microscopy. AB - We report the use of infrared (IR) scattering-type scanning near-field optical microscopy (s-SNOM) as a nondestructive method to map free-carriers in axially modulation-doped silicon nanowires (SiNWs) with nanoscale spatial resolution. Using this technique, we can detect local changes in the electrically active doping concentration based on the infrared free-carrier response in SiNWs grown using the vapor-liquid-solid (VLS) method. We demonstrate that IR s-SNOM is sensitive to both p-type and n-type free-carriers for carrier densities above ~1 * 1019 cm-3. We also resolve subtle changes in local conductivity properties, which can be correlated with growth conditions and surface effects. The use of s SNOM is especially valuable in low mobility materials such as boron-doped p-type SiNWs, where optimization of growth has been difficult to achieve due to the lack of information on dopant distribution and junction properties. s-SNOM can be widely employed for the nondestructive characterization of nanostructured material synthesis and local electronic properties without the need for contacts or inert atmosphere. PMID- 29032681 TI - Excited-State Proton Transfer on the Surface of a Therapeutic Protein, Protamine. AB - Proton transfer reactions on biosurfaces play an important role in a myriad of biological processes. Herein, the excited-state proton transfer reaction of 8 hydroxypyrene-1,3,6-trisulfonate (HPTS) has been investigated in the presence of an important therapeutic protein, Protamine (PrS), using ground-state absorption, steady-state, and detailed time-resolved emission measurements. HPTS forms a 1:1 complex with Protamine with a high association constant of 2.6 * 104 M-1. The binding of HPTS with Protamine leads to a significant modulation in the ground state prototropic equilibrium causing a downward shift of 1.1 unit in the acidity constant (pKa). In contrast to a large number of reports of slow proton transfer of HPTS on biosurfaces, interestingly, HPTS registers a faster proton transfer event in the presence of Protamine as compared to that of even the bulk aqueous buffer medium. Furthermore, the dimensionality of the proton diffusion process is also significantly reduced on the surface of Protamine that is in contrast to the behavior of HPTS in the bulk aqueous buffer medium, where the proton diffusion process is three-dimensional. The effect of ionic strength on the binding of HPTS toward PrS suggests a predominant role of electrostatic interaction between anionic HPTS and cationic Protamine, which is further supported by molecular docking simulations which predict that the most preferable binding site for HPTS on the surface of Protamine is surrounded by multiple cationic arginine residues. PMID- 29032682 TI - Improving the Stability and Size Tunability of Cesium Lead Halide Perovskite Nanocrystals Using Trioctylphosphine Oxide as the Capping Ligand. AB - Recently, all-inorganic cesium lead halide (CsPbX3, X = Cl, Br, and I) nanocrystals (NCs) have drawn wide attention because of their excellent optoelectronic properties and potential applications. However, one of the most significant challenges of such NCs is their low stability against protonic solvents. In this work, we demonstrate that by incorporating a highly branched capping ligand, trioctylphosphine oxide (TOPO), into the traditional oleic acid/oleylamine system, monodisperse CsPbX3 NCs with excellent optoelectronic properties can be achieved at elevated temperatures (up to 260 degrees C). The size of such NCs can be varied in a relatively wide range. The capping of TOPO on NCs has been verified through Fourier transform infrared spectroscopy measurement. More importantly, the presence of TOPO can dramatically improve the stability of CsPbX3 NCs against ethanol treatment. After ethanol treatment for 100 min, the emission intensity of the TOPO-capped sample dropped only 5%, whereas that of non-TOPO-capped NCs dropped up to 86%. This work may shed some light on the preparation and application of CsPbX3 NCs with higher stability. PMID- 29032683 TI - Retrieving the Quantitative Chemical Information at Nanoscale from Scanning Electron Microscope Energy Dispersive X-ray Measurements by Machine Learning. AB - The quantitative composition of metal alloy nanowires on InSb semiconductor surface and gold nanostructures on germanium surface is determined by blind source separation (BSS) machine learning method using non-negative matrix factorization from energy dispersive X-ray spectroscopy (EDX) spectrum image maps measured in a scanning electron microscope (SEM). The BSS method blindly decomposes the collected EDX spectrum image into three source components, which correspond directly to the X-ray signals coming from the supported metal nanostructures, bulk semiconductor signal, and carbon background. The recovered quantitative composition is validated by detailed Monte Carlo simulations and is confirmed by separate cross-sectional transmission electron microscopy EDX measurements of the nanostructures. This shows that simple and achievable SEM EDX measurements together with machine learning non-negative matrix factorization based blind source separation processing could be successfully used for the nanostructures quantitative chemical composition determination. Our finding can make the chemical quantification at the nanoscale much faster and cost efficient for many systems. PMID- 29032684 TI - Effect of Boron on Thymic Cytokine Expression, Hormone Secretion, Antioxidant Functions, Cell Proliferation, and Apoptosis Potential via the Extracellular Signal-Regulated Kinases 1 and 2 Signaling Pathway. AB - Boron is an essential trace element in animals. Appropriate boron supplementation can promote thymus development; however, a high dose of boron can lead to adverse effects and cause toxicity. The influencing mechanism of boron on the animal body remains unclear. In this study, we examined the effect of boron on cytokine expression, thymosin and thymopoietin secretion, antioxidant function, cell proliferation and apoptosis, and extracellular signal-regulated kinases 1 and 2 (ERK1/2) pathway in the thymus of rats. We found that supplementation with 10 and 20 mg/L boron to the drinking water significantly elevated levels of interleukin 2 (IL-2), interferon gamma (IFN-gamma), interleukin 4 (IL-4), and thymosin alpha1 in the thymus of rats (p < 0.05), increased the number of positive proliferating cell nuclear antigen (PCNA+) cells and concentrations of glutathione peroxidase (GSH-Px) and phosphorylated extracellular signal-regulated kinase (p-ERK) (p < 0.05), and promoted mRNA expression of PCNA and ERK1/2 in thymocytes (p < 0.05). However, the number of caspase-3+ cells and the expression level of caspase-3 mRNA were reduced (p < 0.05). Supplementation with 40, 80, and 160 mg/L boron had no apparent effect on many of the above indicators. In contrast, supplementation with 480 and 640 mg/L boron had the opposite effect on the above indicators in rats and elevated levels of pro-inflammatory cytokines, such as interleukin 6 (IL 6), interleukin 1beta (IL-1beta), and tumor necrosis factor alpha (TNF-alpha) (p < 0.05). Our study showed that supplementation of various doses of boron to the drinking water had a U-shaped dose-effect relationship with thymic cytokine expression, hormone secretion, antioxidant function, cell proliferation, and apoptosis. Specifically, supplementation with 10 and 20 mg/L boron promoted thymocyte proliferation and enhanced thymic functions. However, supplementation with 480 and 640 mg/L boron inhibited thymic functions and increased the number of apoptotic thymocytes, suggesting that the effects of boron on thymic functions may be caused via the ERK1/2 signaling pathway. PMID- 29032685 TI - Temperature-Dependent Implicit-Solvent Model of Polyethylene Glycol in Aqueous Solution. AB - A temperature (T)-dependent coarse-grained (CG) Hamiltonian of polyethylene glycol/oxide (PEG/PEO) in aqueous solution is reported to be used in implicit solvent material models in a wide temperature (i.e., solvent quality) range. The T-dependent nonbonded CG interactions are derived from a combined "bottom-up" and "top-down" approach. The pair potentials calculated from atomistic replica exchange molecular dynamics simulations in combination with the iterative Boltzmann inversion are postrefined by benchmarking to experimental data of the radius of gyration. For better handling and a fully continuous transferability in T-space, the pair potentials are conveniently truncated and mapped to an analytic formula with three structural parameters expressed as explicit continuous functions of T. It is then demonstrated that this model without further adjustments successfully reproduces other experimentally known key thermodynamic properties of semidilute PEG solutions such as the full equation of state (i.e., T-dependent osmotic pressure) for various chain lengths as well as their cloud point (or collapse) temperature. PMID- 29032687 TI - On the Problem of Determining Aggregation Numbers from Surface Tension Measurements. AB - In view of the recent discovery of variable aggregation numbers in the vicinity of the critical micelle concentration (CMC), the mass-action-law theory of the surface tension isotherm of a micellar solution with variable aggregation numbers is formulated both for nonionic and ionic surfactants. It is shown that the shape of the surface tension isotherm should be concave in the logarithmic scale above the CMC. Considering a change in the isotherm slope at the CMC apparent break point, the problems of determining the aggregation number for nonionic micelles and the degree of counterion binding for ionic micelles are discussed. In case of the aggregation number variability near the CMC, finding the aggregation number above the CMC apparent break point is considered and a computational scheme is elaborated, requiring a higher precision for experiment. Some experimental data from the literature are analyzed, and the method of estimating the degree of counterion binding is improved. PMID- 29032686 TI - 3'-Hydroxypterostilbene Suppresses Colitis-Associated Tumorigenesis by Inhibition of IL-6/STAT3 Signaling in Mice. AB - 3'-Hydroxypterostilbene (trans-3,5-dimethoxy-3',4'-hydroxystilbene) presents in Sphaerophysa salsula, Pterocarpus marsupium, and honey bee propolis and has been reported to exhibit several biological activities. Herein, we aimed to explore the chemopreventive effects of dietary 3'-hydroxypterostilbene and underlying molecular mechanisms on colitis-associated cancer using the azoxymethane (AOM)/dextran sodium sulfate (DSS) model. 3'-Hydroxypterostilbene administration effectively ameliorated the colon shortening and number of tumors in AOM/DSS treated mice (3.2 +/- 1.2 of the high-dose treatment versus 13.8 +/- 5.3 of the AOM/DSS group, p < 0.05). Molecular analysis exhibited the anti-inflammatory activity of 3'-hydroxypterostilbene by a significant decrease in the levels of inducible nitric oxide synthase, cyclooxygenase-2, and interleukin-6 (IL-6) (p < 0.05). Moreover, dietary 3'-hydroxypterostilbene also significantly diminished IL 6/signal transducer and activator of transcription signaling and restored colonic suppressor of cytokine signaling 3 levels in the colonic tissue of mice (p < 0.05). Collectively, these results demonstrated for the first time the in vivo chemopreventive efficacy and molecular mechanisms of dietary 3' hydroxypterostilbene against colitis-associated colonic tumorigenesis. PMID- 29032688 TI - pH Dependence of the Aqueous Photochemistry of alpha-Keto Acids. AB - alpha-Keto acids are important, atmospherically relevant species, and their photochemistry has been considered in the formation and processing of aerosols. Despite their atmospheric relevance, the photochemistry of these species has primarily been studied under extremely low pH conditions. Using a variety of analytical techniques, we characterize the extent of hydration and deprotonation for solutions of two alpha-keto acids, pyruvic acid and 2-oxooctanoic acid, as a function of pH. We find that changes in the initial solution composition govern the accessibility of different photochemical pathways, resulting in slowed photolysis under high pH conditions and a shift in photoproducts that can be predicted mechanistically. PMID- 29032689 TI - Characterization and Degradation of Pectic Polysaccharides in Cocoa Pulp. AB - Microbial fermentation of the viscous pulp surrounding cocoa beans is a crucial step in chocolate production. During this process, the pulp is degraded, after which the beans are dried and shipped to factories for further processing. Despite its central role in chocolate production, pulp degradation, which is assumed to be a result of pectin breakdown, has not been thoroughly investigated. Therefore, this study provides a comprehensive physicochemical analysis of cocoa pulp, focusing on pectic polysaccharides, and the factors influencing its degradation. Detailed analysis reveals that pectin in cocoa pulp largely consists of weakly bound substances, and that both temperature and enzyme activity play a role in its degradation. Furthermore, this study shows that pulp degradation by an indigenous yeast fully relies on the presence of a single gene (PGU1), encoding for an endopolygalacturonase. Apart from their basic scientific value, these new insights could propel the selection of microbial starter cultures for more efficient pulp degradation. PMID- 29032691 TI - Conjugated hyperbilirubinemia after surgery. A diagnosis of Dubin-Johnson syndrome confirmed by genetic testing. AB - Dubin-Johnson syndrome is a rare benign inherited disorder, caused by mutations in ABCC2 gen, and it is characterized by predominantly conjugated hyperbilirubinemia that can be increased by intercurrent infectious illnesses or surgical procedures. We report the case of a 10 year-old patient who showed, after a surgical procedure for peritonitis due to appendicitis, jaundice and predominantly conjugated hyperbilirubinemia, and he was diagnosed with Dubin Johnson syndrome by genetic testing. PMID- 29032692 TI - A post-endoscopic retrograde cholangiopancreatography subcapsular hepatic hematoma. AB - Nowadays endoscopic retrograde cholangiopancreatography (ERCP) is a minimally invasive technique with a complication rate around 2.5% in expert hands, being the most frequent: acute pancreatitis, cholangitis, hemorrhage and perforation. An exceptional complication is subcapsular hepatic hematoma, first published in the literature in 2000, with few cases reported. Regarding the case published by Del Moral Martinez et al (Hepatic Hematoma after ERCP: presentation of two new cases. Rev Esp Enferm Dig 2017, Vol. 109, No. 6, pp. 470-473) we would like to contribute a reflection based on a recent clinical case in our center. PMID- 29032693 TI - From utopia to reality: increased survival in peritoneal carcinomatosis treated with cytoreduction and hyperthermic intraperitoneal chemotherapy. AB - We have read with great interest the article by Illan et al.1 entitled "Long survival in a patient with metastatic colorectal carcinoma: reality or utopia?" This article describes the case of a 42 year old patient with mucinous-type colon adenocarcinoma who had tumor recurrence with peritoneal metastases 18 months after resection of the primary tumor and adjuvant chemotherapy. After multiple metastasectomies and several lines of chemotherapy, the patient died 27 months after the recurrence. PMID- 29032694 TI - Short-term outcome of patients with colon cancer diagnosed by symptoms and screening. AB - Colon cancer diagnosed as part of a screening program, showed better short-term outcomes following surgery. These advantages seem to have impact on long-term outcomes as well. PMID- 29032695 TI - Hepatic veno-occlusive disease induced by Chinese medicinal herbs. AB - The potential hepatotoxic effects of products containing medicinal herbs, which are increasingly used without adequate control by health authorities, is well known. We report a case of toxic hepatic veno-occlusive disease (HVOD) presumably associated with the use of such herbal remedies. PMID- 29032697 TI - The Association of Sitting Time With Sarcopenia Status and Physical Performance at Baseline and 18-Month Follow-Up in the Residential Aged Care Setting. AB - This study investigated the association of sitting time with sarcopenia and physical performance in residential aged care residents at baseline and 18-month follow-up. Measures included the International Physical Activity Questionnaire (sitting time), European Working Group definition of sarcopenia, and the short physical performance battery (physical performance). Logistic regression and linear regression analyses were used to investigate associations. For each hour of sitting, the unadjusted odds ratio of sarcopenia was 1.16 (95% confidence interval [0.98, 1.37]). Linear regression showed that each hour of sitting was significantly associated with a 0.2-unit lower score for performance. Associations of baseline sitting with follow-up sarcopenia status and performance were nonsignificant. Cross-sectionally, increased sitting time in residential aged care may be detrimentally associated with sarcopenia and physical performance. Based on current reablement models of care, future studies should investigate if reducing sedentary time improves performance among adults in end of life care. PMID- 29032696 TI - Impact of improving postprandial glycemic control with intensifying insulin therapy in type 2 diabetes. AB - Worldwide, many people with type 2 diabetes are not at recommended glycemic targets and remain at increased risk of microvascular and macrovascular complications. Reaching recommended glycemic targets requires normalizing both fasting and postprandial glucose (PPG). For some patients, this will require addition of a prandial insulin delivered by injection to control PPG excursions. Evidence from epidemiological studies suggests an association between postprandial hyperglycemia and cardiovascular disease, and thus, expert guidelines recommend that treatment for elevated PPG not be delayed. Indeed, studies have demonstrated that PPG makes the greatest contribution to HbA1c in patients who are approaching, but have not yet reached HbA1c <7.0%. Appropriately timed exposure of the liver to insulin is critical in suppressing hepatic glucose output (and therefore PPG levels) after a meal. Rapid-acting insulin analogs, with their faster onset and shorter duration of action, offer advantages over regular human insulin. Unfortunately, even with improved pharmacokinetic/pharmacodynamic characteristics, rapid-acting insulin analogs are still unable to fully reproduce the rapid release of insulin into the portal circulation and suppression of hepatic glucose output that occurs in the individual without diabetes after starting a meal. The next generation of rapid acting insulin analogs will have an even more favorable pharmacokinetic profile that should allow patients to further improve glycemic control. Continuous subcutaneous insulin infusion (CSII) represents another option for intensifying therapy and improving postprandial control in some patients, and studies have shown that the benefits are sustainable long-term. However, it is currently unclear which patients stand to benefit the most from the extra expense and complexity of a CSII regimen, and further studies are needed. PMID- 29032698 TI - Text Messages Promoting Mental Imagery Increase Self-Reported Physical Activity in Older Adults: A Randomized Controlled Study. AB - OBJECTIVE: This study tested whether text messages prompting adults 50 years of age and older to perform mental imagery would increase aerobic physical activity (APA) duration using a randomized parallel trial design. METHOD: Participants were assigned to an Imagery 1, Imagery 2, or placebo group. For 4 weeks, each group was exposed to two conditions (morning text message vs. no morning text message). In the morning message condition, the imagery groups received a text message with the instruction to mentally imagine performing an APA, and the placebo group received a placebo message. All participants received an evening text message of "Did you do your cardio today? If yes, what did you do?" for 3 days per week. RESULTS: Participants of the imagery groups reported significantly more weekly minutes of APA in the morning text message condition compared with the no morning message condition. CONCLUSION: Electronic messages were effective at increasing minutes of APA. PMID- 29032699 TI - A patient with aphasia using the nonsemantic lexical route for Kanji reading. AB - We report a patient with aphasia, caused by cerebral hemorrhage, who probably used the nonsemantic lexical route when reading words aloud. To investigate the mechanisms underlying her reading dysfunction, we analyzed her reading abilities using the Dual-Route Cascaded Model. Language tests resulted in low correct percentages for both reading comprehension and reading nonwords aloud, suggesting problems in the semantic system and the nonlexical route. Conversely, the patient showed high scores on the reading words aloud task. Although she failed to understand many inconsistent-atypical words in the reading comprehension test, she correctly read most words aloud, suggesting that she used the nonsemantic lexical route. In addition, the lexical reading route was analyzed in detail by using inconsistent-atypical Kanji words as stimuli. Finally, we analyzed her reading dysfunction compared with previous cases. PMID- 29032700 TI - Improving Depression Care for Adults With Serious Mental Illness in Underresourced Areas: Community Coalitions Versus Technical Support. AB - OBJECTIVE: Community Partners in Care (CPIC) was a group-randomized study of two approaches to implementing expanded collaborative depression care: Community Engagement and Planning (CEP), a coalition approach, and Resources for Services (RS), a technical assistance approach. Collaborative care networks in both arms involved health care and other agencies in five service sectors. This study examined six- and 12-month outcomes for CPIC participants with serious mental illness. METHODS: This secondary analysis focused on low-income CPIC participants from racial-ethnic minority groups with serious mental illness in underresourced Los Angeles communities (N=504). Serious mental illness was defined as self reported severe depression (>=20 on the Patient Health Questionnaire-8) at baseline or a lifetime history of bipolar disorder or psychosis. Logistic and Poisson regression with multiple imputation and response weights, controlling for covariates, was used to model intervention effects. RESULTS: Among CPIC participants, 50% had serious mental illness. Among those with serious mental illness, CEP relative to RS reduced the likelihood of poor mental health-related quality of life (OR=.62, 95% CI=.41-.95) but not depression (primary outcomes); reduced the likelihood of having homelessness risk factors and behavioral health hospitalizations; increased the likelihood of mental wellness; reduced specialty mental health medication and counseling visits; and increased faith-based depression visits (each p<.05) at six months. There were no statistically significant 12-month effects. CONCLUSIONS: Findings suggest that a coalition approach to implementing expanded collaborative depression care, compared with technical assistance to individual programs, may reduce short-term behavioral health hospitalizations and improve mental health-related quality of life and some social outcomes for adults with serious mental illness, although no evidence was found for long-term effects in this subsample. PMID- 29032701 TI - Parent-Reported Use of Interventions by Toddlers and Preschoolers With Autism Spectrum Disorder. AB - OBJECTIVE: This study examined services used by young children with autism spectrum disorder (ASD) and factors associated with use. METHODS: A retrospective observational study was conducted with baseline data for toddlers (under age three) and preschoolers (three to less than six years) with ASD enrolled in the Autism Speaks Autism Treatment Network registry from 2008 to 2013 (N=2,804). Parents' reports at enrollment of services received by children were documented. Factors associated with service use and with hours per week of services used were identified by multiple regression analyses. RESULTS: At baseline, 79% of children had received at least one service; 28% had received behavioral services. In the sample, less than 30% of children who received at least one service spent more than ten hours per week in any service use. Children who received services were more likely to be of white race and to have had an ASD diagnosis prior to registry enrollment. Age, previous ASD diagnosis, maternal education, and child's IQ were significantly associated with the use of behavioral services; IQ was negatively associated with use. A consistent trend toward greater use of behavioral services was found over the study period. Factors associated with hours of any services used per week included age, gender, race, maternal education, and clinical characteristics. The predicted average weekly service hours for children with ASD across registry sites ranged from 3.1+/-1.0 to 9.5+/ 2.1. CONCLUSIONS: Service use varied according to child, family, and system characteristics. More efforts should be focused on early intervention and on children with ASD who have low socioeconomic status and cognitive disability. PMID- 29032702 TI - A Change in Perspective: From Dual Diagnosis to Multimorbidity. AB - OBJECTIVE: There has been increasing interest within psychiatry in the concept of multimorbidity because psychiatric patients typically present with multiple concurrent disorders, these disorders mutually exacerbate one another, and their interaction shapes treatment options. Metrics have not been developed to document multimorbidity in psychiatric clinical practice. METHODS: Four classes of indicators relevant to multimorbidity were defined and evaluated among veterans treated in mental health specialty clinics nationally in the Veterans Health Administration (VHA) in fiscal year 2012. RESULTS: Of the 843,583 veterans with at least three visits to a specialty mental health clinic, 94.6% had more than one general medical or mental disorder and 77.6% had more than one mental disorder, compared with 30.6% with co-occurring psychiatric and substance use disorders. CONCLUSIONS: Real-world psychiatric care is more accurately approached from the multimorbidity perspective than from the perspective of principal, dual, or comorbid diagnoses. PMID- 29032703 TI - The Use of Telepsychiatry to Provide Cost-Efficient Care During Pediatric Mental Health Emergencies. AB - OBJECTIVE: This study evaluated a videoconference-based psychiatric emergency consultation program (telepsychiatry) at geographically dispersed emergency department (ED) sites that are part of the network of care of an academic children's hospital system. The study compared program outcomes with those of usual care involving ambulance transport to the hospital for in-person psychiatric emergency consultation prior to disposition to inpatient care or discharge home. METHODS: This study compared process outcomes in a cross sectional, pre-post design at five network-of-care sites before and after systemwide implementation of telepsychiatry consultation in 2015. Clinical records on 494 pediatric psychiatric emergencies included ED length of stay, disposition/discharge, and hospital system charges. Satisfaction surveys regarding telepsychiatry consultations were completed by providers and parents or guardians. RESULTS: Compared with children who received usual care, children who received telepsychiatry consultations had significantly shorter median ED lengths of stay (5.5 hours and 8.3 hours, respectively, p<.001) and lower total patient charges ($3,493 and $8,611, p<.001). Providers and patient caregivers reported high satisfaction with overall acceptability, effectiveness, and efficiency of telepsychiatry. No safety concerns were indicated based on readmissions within 72 hours in either treatment condition. CONCLUSIONS: Measured by charges and time, telepsychiatry consultations for pediatric psychiatric emergencies were cost efficient from a hospital system perspective compared with usual care consisting of ambulance transport for in-person consultation at a children's hospital main campus. Telepsychiatry also improved clinical and operational efficiency and patient and family experience, and it showed promise for increasing access to other specialized health care needs. PMID- 29032704 TI - Addressing Barriers to Clozapine Underutilization: A National Effort. AB - Although clozapine has demonstrated unique efficacy for the treatment of seriously ill patients with refractory psychosis, its real-world use presents challenges to clinicians in a variety of settings, leading to its underutilization in the United States. The barriers include a lack of prescriber knowledge and confidence, negative prescriber attitudes, special monitoring requirements, administrative burden, unprepared health systems, and inadequate appreciation of clozapine's unique nature by policy makers and payers. In 2016, the National Association of State Mental Health Program Directors (NASMHPD) gathered a national team of expert clinicians and researchers to identify and address barriers to clozapine use. NASMHPD has since expanded the work group, which convenes monthly to continue addressing specific recommendations. This Open Forum describes the deliberations of the work group and urges practitioners, administrators, local and state governments, researchers, families, and patients to join similar efforts to promote better access to clozapine and improve the treatment management for patients receiving clozapine. PMID- 29032705 TI - A Mobile Application for Monitoring and Management of Depressed Mood in a Vulnerable Pregnant Population. AB - OBJECTIVE: This study tested whether a mood tracking and alert (MTA) mobile application (app) improved mental health care delivery in a high-risk obstetric population. METHODS: Pregnant women with depressive symptomatology at <32 weeks gestation were followed for eight weeks after randomization to a control patient portal (PP) app alone or with the MTA app. The MTA app monitored activity, assessed mood, and alerted obstetric providers of signs of worsening mood. RESULTS: Seventy-two women enrolled (PP, N=24; MTA, N=48). MTA users had significantly more contacts addressing mental health, and as gestational age increased, they rated ability to manage their own health significantly better than women in the control group. Women who received telephone contact from a provider triggered by an MTA app alert were significantly more likely to receive a mental health specialist referral. CONCLUSIONS: A mobile MTA app improved service delivery and patient engagement among patients with perinatal depression symptoms. PMID- 29032706 TI - Quality and Predictors of Diabetes Care Among Patients With Schizophrenia: A Danish Nationwide Study. AB - OBJECTIVE: Patients with schizophrenia have a high prevalence of diabetes, but data on diabetes care quality for these patients are limited. This nationwide study compared the quality of diabetes care among individuals with and without schizophrenia and identified predictors of care quality. METHODS: In a population based cohort study, 83,813 individuals with diabetes seen at hospital outpatient clinics between 2005 and 2013, including 669 with comorbid schizophrenia, were identified from Danish registries. High-quality diabetes care was defined as having received >=80% of guideline-recommended process performance measures. Variables assessed as predictors of diabetes care included patient-specific (sex, age, smoking, substance abuse, Global Assessment of Functioning score, and duration of schizophrenia), provider-specific (quality of schizophrenia care), and system-specific (annual patient contact volume of the diabetes clinic) factors. RESULTS: Compared with individuals with diabetes only, those with diabetes and schizophrenia were less likely to receive high-quality diabetes care (relative risk [RR]=.91, 95% confidence interval [CI]=.88-.95) and less likely to receive several individual process performance measures of diabetes care, including blood pressure monitoring (RR=.98, CI=.96-.99), treatment with antihypertensive drugs (RR=.83, CI=.70-.97) and angiotensin-converting enzyme/angiotensin II receptor inhibitors (RR=.72, CI=.55-.93), screening for albuminuria (RR=.96, CI=.93-.99), eye examination at least once every second year (RR=.97, CI=.94-.99), and foot examination (RR=.96, CI=.93-.99). Predictors of poor diabetes care among individuals with schizophrenia included documented drug abuse and low contact volume of the diabetes clinic. CONCLUSIONS: Individuals with schizophrenia received lower-quality diabetes care compared with those without schizophrenia. However, absolute differences in care were modest. PMID- 29032708 TI - Retraction Notice. PMID- 29032707 TI - Safety of Psychiatric Inpatients at the Veterans Health Administration. AB - OBJECTIVE: Although reducing adverse events and medical errors has become a central focus of the U.S. health care system over the past two decades both within and outside the Veterans Health Administration (VHA) hospital systems, patients treated in psychiatric units of acute care general hospitals have been excluded from major research in this field. METHODS: The study included a random sample of 40 psychiatric units from medical centers in the national VHA system. Standardized abstraction tools were used to assess the electronic health records from 8,005 hospitalizations. Medical record administrators screened the records for the presence of ten specific types of patient safety events, which, when present, were evaluated by physician reviewers to assess whether the event was the result of an error, whether it caused harm, and whether it was preventable. RESULTS: Approximately one in five patients experienced a patient safety event. The most frequently occurring events were medication errors (which include delayed and missed doses) (17.2%), followed by adverse drug events (4.1%), falls (2.8%), and assault (1.0%). Most patient safety events (94.9%) resulted in little harm or no harm, and more than half (56.6%) of the events were deemed preventable. CONCLUSIONS: Although patient safety events in VHA psychiatric inpatient units were relatively common, a great majority of these events resulted in little or no patient harm. Nevertheless, many were preventable, and the study provides data with which to target future initiatives that may improve the safety of this vulnerable patient population. PMID- 29032709 TI - Putative predictors of efficacy for immune checkpoint inhibitors in non-small cell lung cancer: facing the complexity of the immune system. AB - INTRODUCTION: In non-small-cell lung cancer (NSCLC) the recent introduction of immunotherapy in daily clinical practice produced a wave of enthusiasm, however, this was rapidly moderated by the evidence that only some patients could experience a relevant clinical benefit. Therefore, a great effort from the scientific community has been dedicated to the identification and validation of reliable biomarkers able to drive the activity of immunotherapeutic agents. Areas covered: This analysis aims to review the main findings about predictive biomarkers for immunotherapy in lung cancer, retracing the history of PD-L1 and focusing on a series of innovative candidates, such as mutational load, immune cell populations and microbiome. Expert commentary: Considering the complexity of the immune system-cancer interactions, the idea of identifying a single biomarker able to drive the activity of different immunotherapeutic agents alone, borrowing the idea of targeted therapy, is likely to represent an unrealistic objective. Nevertheless, the identification of those factors either positively or negatively affecting the response is mandatory in order to recruit the appropriate patients, but also to deeply understand the mechanisms of immune response and improve the clinical benefit deriving from these agents in monotherapy or in a biologically rationale combination. PMID- 29032710 TI - Phase I dose escalation study of the anti-CD2 monoclonal antibody, siplizumab, with DA-EPOCH-R in aggressive peripheral T-cell lymphomas. PMID- 29032712 TI - Retraction notice. AB - It has been brought to our attention that the following case report contains inaccuracies with regard to the case information presented. It has therefore been retracted from Future Cardiology, at the request of the authors. Murana G, Cefarelli M, Kloppenburg G, Morshuis WJ, Heijmen RH. Surgical exclusion of a saccular aneurysm within a patent ductus arteriosus in an adult patient with Ortner's syndrome. Future Cardiol. 12(6), 613-616 (2016). PMID- 29032711 TI - Identification of rosmarinic acid and sulfated flavonoids as inhibitors of microfouling on the surface of eelgrass Zostera marina. AB - A bioassay-guided approach was used to identify defense compounds that are present on the surface of Zostera marina and which inhibit settlement of microfoulers at natural concentrations. Moderately polar eelgrass surface extracts inhibited the settlement of seven marine bacteria and one yeast that originated from non-living substrata. In contrast, five other bacterial strains that had been directly isolated from eelgrass surfaces were all insensitive, which suggested a selective effect of surface metabolites on the microbial communities present on eelgrass. Bioassay-guided isolation of active compounds from the extracts in combination with UPLC-MS and 1H-NMR spectroscopy resulted in the identification of rosmarinic acid, luteolin-7-sulfate and diosmetin-7-sulfate or its isomer chrysoeriol-7-sulfate. All three compounds are nontoxic repellents, as they did not inhibit bacterial growth, but prevented bacterial settlement in a dose-dependent manner. Between 15.6 and 106.8 MUg ml-1 of rosmarinic acid were present on the eelgrass surface, enough for half maximal settlement inhibition of bacteria. PMID- 29032713 TI - Intravenous iron treatments for iron deficiency anemia in inflammatory bowel disease: a budget impact analysis of iron isomaltoside 1000 (Monofer) in the UK. AB - INTRODUCTION: Iron deficiency is the leading cause of anemia in patients with inflammatory bowel disease (IBD). Intravenous iron is the first-line treatment for clinically active IBD or previous oral iron intolerance. The aim of the present study was to develop a comparative model of iron deficiency and delivery for iron isomaltoside (IIM), ferric carboxymaltose (FCM), low molecular weight iron dextran (LMWID), and iron sucrose (IS) in the treatment of iron deficiency anemia associated with IBD. Areas covered: A model was developed to evaluate iron delivery characteristics, resource use and costs associated with IIM, FCM, LMWID and IS. Iron deficiency was modeled using dosing tables and retreatments were modeled based on a pooled retrospective analysis. The analyses were conducted over 5 years in patients with IBD with mean bodyweight of 75.4 kg and hemoglobin levels of 10.77 g/dL based on observational data. Expert opinion: The modeling analysis showed that using IIM required 1.2 infusions (per treatment) to correct the mean iron deficit, compared with 1.6, 1.2, and 7.1 with FCM, LMWID and IS, respectively. Costs were estimated to be 2,518 pounds sterling (GBP) per patient with IIM or LMWID, relative to GBP 3,309 with FCM or GBP 14,382 with IS. PMID- 29032714 TI - Fusion of optical coherence tomography and angiography for numerical simulation of hemodynamics in bioresorbable stented coronary artery based on patient specific model. AB - Three-dimensional simulations of coronary artery using finite element analysis are considered as effective means to understand the biomechanical properties after the stent was deployed. Bioresorbable vascular scaffolds are new-generation stents used by people. Intravascular optical coherence tomography is an emerging technique for detecting struts. The common 3 D reconstruction methods are using Intravascular Ultrasound (IVUS) or angiographies. However, it loses the details about geometry model. Fusing of optical coherence tomography and angiography to reconstruct the bioresorbable stented coronary artery based on patient-specific mode is an innovative method to reconstruct the high fidelity geometry. This study aimed to use computer-aided design models and computational fluid dynamics research tools to conduct a systematic investigation of blood flow in an isolated artery with realistically deployed coronary stents. Some important hemodynamic factors such as wall shear stress, wall pressure and streamline were calculated. The doctors could evaluate the local hemodynamic alterations within coronary arteries after stent deployment by reconstructing the high-fidelity geometry about each clinical case. PMID- 29032715 TI - Frequent consumption of sugar-sweetened beverages and sweets starts at early age. AB - OBJECTIVES: We aimed to investigate the habitual consumption of sugar-sweetened beverages (SSBs) and sweets in relation to mothers' behaviours and practices with their infants. METHODS: We targeted mothers with children 1-24 months (N = 200) visiting Public Child Health clinics in Finland. During routine visits mothers (N = 179) volunteered to complete a self-administered anonymous questionnaire about their child's health-related behaviours (consumption of sweets and SSBs, tooth brushing frequency). The questionnaires also included questions about the mothers' background (age, education) and health-related behaviours (consumption of sweets, tooth brushing frequency and smoking habits). The children were categorised by age, and Chi-squared tests, Fischer's exact test, ANOVA and correlation coefficient served for the statistical analyses. RESULTS: Of those under 6 months, almost half (44%) received SSBs, and 45% of them more than once a week. Their use gradually increased by age such that by 19-24 months, all received SSBs at least sometimes, and 56%, frequently. Fewer than half of the mothers (33-43%) gave sweets to their children between the ages of 10-15 months, but 92% by the age of 2 years. Children's twice-a-day tooth brushing increased from 14% to 33%. The child's age and tooth brushing frequency correlated with the consumption of sugar-sweetened products (r = 0.458). CONCLUSIONS: Infants frequent consumption of sugar-sweetened products begins early in childhood. Thus, tackling these common risk factors in the first years of life is essential and calls for health-promoting actions in multiple areas that target primarily the parents of infants. PMID- 29032716 TI - Prediction of coronary plaque progression using biomechanical factors and vascular characteristics based on computed tomography angiography. AB - OBJECTIVES: Coronary atherosclerotic plaques progress in a highly individual manner. Accurately predicting plaque progression will promote clinical management of atherosclerosis. The purpose of this study was to investigate the role of local biomechanics factors and vascular characteristics in coronary plaque progression and arterial remodeling. METHODS: Computed tomography angiography based three-dimensional reconstruction of the native right coronary artery was performed in vivo in twelve patients with acute coronary syndrome at baseline and 12-month follow-up. The reconstructed arteries were divided into sequential 3-mm long segments. Wall shear stress (WSS) and von Mises stress (VMS) were computed in all segments at baseline by applying fluid-structure interaction simulations. RESULTS: In total, 365 segments 3-mm long were analyzed. The decrease in minimal lumen area was independently predicted by low baseline VMS (-0.73 +/- 0.13 mm2), increase in plaque burden was independently predicted by small minimal lumen area and low baseline WSS (6.28 +/- 0.96%), and decrease in plaque volume was independently predicted by low baseline VMS (-0.99 +/- 0.49 mm3). Negative remodeling was more likely to occur in low- (55%) and moderate-VMS (40%) segments, but expansive remodeling was more likely to occur in high-VMS (44%) segments. CONCLUSIONS: Local von Mises stress, wall shear stress, minimal lumen area, and plaque burden provide independent and additive prediction in identifying coronary plaque progression and arterial remodeling. PMID- 29032717 TI - BET inhibitors in metastatic prostate cancer: therapeutic implications and rational drug combinations. AB - INTRODUCTION: The bromodomain and extra-terminal (BET) family of proteins are epigenetic readers of acetylated histones regulating a vast network of protein expression across many different cancers. Therapeutic targeting of BET is an attractive area of clinical development for metastatic castration-resistant prostate cancer (mCRPC), particularly due to its putative effect on c-MYC expression and its interaction with the androgen receptor (AR). Areas covered: We speculate that a combination approach using inhibitors of BET proteins (BETi) with other targeted therapies may be required to improve the therapeutic index of BET inhibition in the management of prostate cancer. Preclinical data has identified several molecular targets that may enhance the effect of BET inhibition in the clinic. This review will summarize the known preclinical data implicating BET as an important therapeutic target in advanced prostate cancer, highlight the ongoing clinical trials targeting this protein family, and speculate on rationale combination strategies using BETi together with other agents in prostate cancer. A literature search using Pubmed was performed for this review. Expert opinion: Use of BETi in the treatment of mCRPC patients may require the addition of a second novel agent. PMID- 29032718 TI - State governance versus dentists' autonomy - the case of Swedish dental care. AB - OBJECTIVE: A trend towards the state governance of healthcare through quality indicators and national clinical guidelines has been observed, and it is argued that this trend can be a challenge to the autonomy of healthcare professionals. In Sweden, these regulatory tools have been implemented in combination with subsidies for adult dental care that are based on guideline recommendations which serve to ensure that dental care is evidence-based and cost-effective. This paper aims to analyse the implications of these changes regarding dentists' autonomy and whether the government's political intentions can be fulfilled. MATERIAL AND METHODS: The paper is based on documents from government authorities and professional theories. RESULTS: The financial control over Swedish dental care has been strengthened, and it can be argued that this is a step in the right direction from a societal point of view, as public resources are limited. Dentists' professional autonomy with their patients is not affected, which is appropriate, as patients should be treated according to their individual needs and expectations. CONCLUSIONS: This article shows that the state's governance does not directly detail dentists' work, which indicates a balance between state governance and dentists' autonomy. However, further research is required to get knowledge on Swedish dentists' view of the governance. PMID- 29032719 TI - Improved survival outcomes with the addition of rituximab to initial therapy for chronic lymphocytic leukemia: a comparative effectiveness analysis in the province of British Columbia, Canada. AB - Chemoimmunotherapy with rituximab improves survival in clinical trials in upfront chronic lymphocytic leukemia (CLL) treatment. This study compared clinical outcomes with and without rituximab added to first-line chemotherapy in a provincial cohort of CLL patients. Between 1973 and 2014, 1345 patients received CLL treatment: 48% with rituximab, 52% chemotherapy alone. Median overall survival (OS) and treatment-free survival (TFS) were significantly longer with rituximab: OS 8.9 vs. 6.2 years, p < .0001; TFS 3.6 vs. 2.1 years, p < .0001. Addition of rituximab to chemotherapy was a strong independent predictor of mortality with a 32% mortality reduction after controlling for co-variates (age, sex, stage, and treatment with purine analogs). This large population-based study complements clinical trial and registry data demonstrating the benefit of adding rituximab to first-line CLL therapy and adds further evidence of the efficacy of rituximab-based chemoimmunotherapy in a real-world setting. PMID- 29032720 TI - Effect of whole body vibration on spasticity in hemiplegic legs of patients with stroke. AB - BACKGROUND: Several reports have focused on the effects of whole body vibration (WBV) on spasticity with differing results. Most studies used modified Ashworth scale (MAS) for qualitative measurements, but the effect was small. OBJECTIVE: To investigate the effect of WBV on spasticity in hemiplegic legs of patients with stroke using F-wave parameters. METHODS: Sixteen patients with stroke (mean age, 54.7 +/- 13.5 years: time after stroke, 28.0 +/- 26.3 months) were enrolled in a comparative before-and-after intervention trial. WBV was applied at 30 Hz (4-8 mm amplitude) for 5 min on the hamstrings, gastrocnemius, and soleus muscles in a sitting position. Spasticity was assessed according to the F-wave parameters, MAS, and active and passive range of motion (A-ROM and P-ROM, respectively). These assessments were obtained before, immediately after, and 20 min after each intervention. RESULTS: The F-wave parameters, MAS score, and P-ROM improved significantly after the WBV and remained below the baseline level, even after 20 min; no such change was noted in the unaffected limb via the F-wave parameters. The WBV also improved volitional movement immediately after intervention, as indicated by the A-ROM. CONCLUSIONS: These results confirmed a significant reduction of motor neuron excitability until 20 min after the WBV, as indicated by F-wave parameters. PMID- 29032721 TI - Estimation of sensitivity and specificity of pregnancy diagnosis using transrectal ultrasonography and ELISA for pregnancy-associated glycoprotein in dairy cows using a Bayesian latent class model. AB - AIMS: To determine the sensitivity (Se) and specificity (Sp) of pregnancy diagnosis using transrectal ultrasonography and an ELISA for pregnancy-associated glycoprotein (PAG) in milk, in lactating dairy cows in seasonally calving herds approximately 85-100 days after the start of the herd's breeding period. METHODS: Paired results were used from pregnancy diagnosis using transrectal ultrasonography and ELISA for PAG in milk carried out approximately 85 and 100 days after the start of the breeding period, respectively, from 879 cows from four herds in Victoria, Australia. A Bayesian latent class model was used to estimate the proportion of cows pregnant, the Se and Sp of each test, and covariances between test results in pregnant and non-pregnant cows. Prior probability estimates were defined using beta distributions for the expected proportion of cows pregnant, Se and Sp for each test, and covariances between tests. Markov Chain Monte Carlo iterations identified posterior distributions for each of the unknown variables. Posterior distributions for each parameter were described using medians and 95% probability (i.e. credible) intervals (PrI). The posterior median estimates for Se and Sp for each test were used to estimate positive predictive and negative predictive values across a range of pregnancy proportions. RESULTS: The estimate for proportion pregnant was 0.524 (95% PrI = 0.485-0.562). For pregnancy diagnosis using transrectal ultrasonography, Se and Sp were 0.939 (95% PrI = 0.890-0.974) and 0.943 (95% PrI = 0.885-0.984), respectively; for ELISA, Se and Sp were 0.963 (95% PrI = 0.919-0.990) and 0.870 (95% PrI = 0.806-0.931), respectively. The estimated covariance between test results was 0.033 (95% PrI = 0.008-0.046) and 0.035 (95% PrI = 0.018-0.078) for pregnant and non-pregnant cows, respectively. Pregnancy diagnosis results using transrectal ultrasonography had a higher positive predictive value but lower negative predictive value than results from the ELISA across the range of pregnancy proportions assessed. CONCLUSIONS AND CLINICAL RELEVANCE: Pregnancy diagnosis using transrectal ultrasonography and ELISA for PAG in milk had similar Se but differed in predictive values. Pregnancy diagnosis in seasonally calving herds around 85-100 days after the start of the breeding period using the ELISA is expected to result in a higher negative predictive value but lower positive predictive value than pregnancy diagnosis using transrectal ultrasonography. Thus, with the ELISA, a higher proportion of the cows with negative results will be non-pregnant, relative to results from transrectal ultrasonography, but a lower proportion of cows with positive results will be pregnant. PMID- 29032723 TI - Re: Farm and cow-level prevalence of bovine digital dermatitis on dairy farms in Taranaki, New Zealand. PMID- 29032722 TI - Comparison of fermented animal feed and mushroom growth media as two value-added options for waste Cassava pulp management. AB - Cassava is one of the main processed crops in Thailand, but this generates large amounts (7.3 million tons in 2015) of waste cassava pulp (WCP). The solid WCP is sold directly to farmers or pulp-drying companies at a low cost to reduce the burden of on-site waste storage. Using an integrated direct and environmental cost model, fermented animal feed and mushroom growth media were compared as added-value waste management alternatives for WCP to mitigate environmental problems. Primary and secondary data were collected from the literature, field data, and case studies. Data boundaries were restricted to a gate-to-gate scenario with a receiving capacity of 500 t WCP/d, and based on a new production unit being set up at the starch factory. The total production cost of each WCP utilization option was analyzed from the economic and environmental costs. Fermented animal feed was an economically attractive scenario, giving a higher net present value (NPV), lower investment cost and environmental impact, and a shorter payback period for the 10-year operational period. The selling price of mushrooms was the most sensitive parameter regarding the NPV, while the NPV for the price of fermented animal feed had the highest value in the best-case scenario. PMID- 29032725 TI - Percutaneous pedestals in cochlear implantation. AB - Percutaneous pedestals have been integral to the development of cochlear implants since 1969. By enabling direct electrical access to implanted electrodes or other devices, they allow optimization of control of stimulation strategies. Similarly, technology not validated for implantable use can be safely tested. These advantages have facilitated the development of cochlear implants and also resulted in their inclusion in trials investigating electronic implants developed for other organs. Surgery is straightforward, but post-operative care, in particular, skin-care is crucial to ensure complications are minimized. This review discusses the history of percutaneous pedestal use in cochlear implants and other electronic devices. Surgical technique, aftercare, and complications of surgery are discussed along with possibilities for future development. PMID- 29032724 TI - Reintroducing the Sodium-Iodide Symporter to Anaplastic Thyroid Carcinoma. AB - BACKGROUND: Anaplastic thyroid carcinoma (ATC), the most aggressive form of thyroid cancer, is unresponsive to radioiodine therapy. The current study aimed to extend the diagnostic and therapeutic application of radioiodine beyond the treatment of differentiated thyroid cancer by targeting the functional sodium iodide symporter (NIS) to ATC. METHODS: The study employed nanoparticle vectors (polyplexes) based on linear polyethylenimine (LPEI), shielded by polyethylene glycol (PEG) and coupled to the synthetic peptide GE11 as an epidermal growth factor receptor (EGFR)-specific ligand in order to target a NIS-expressing plasmid (LPEI-PEG-GE11/NIS) to EGFR overexpressing human thyroid carcinoma cell lines. Using ATC xenograft mouse models, transfection efficiency by 123I scintigraphy and potential for systemic radioiodine therapy after systemic polyplex application were evaluated. RESULTS: In vitro iodide uptake studies in SW1736 and Hth74 ATC cells, and, for comparison, in more differentiated follicular (FTC-133) and papillary (BCPAP) thyroid carcinoma cells demonstrated high transfection efficiency and EGFR-specificity of LPEI-PEG-GE11/NIS that correlated well with EGFR expression levels. After systemic polyplex injection, in vivo 123I gamma camera imaging revealed significant tumor-specific accumulation of radioiodine in an SW1736 and an Hth74 xenograft mouse model. Radioiodine accumulation was found to be higher in SW1736 tumors, reflecting in vitro results, EGFR expression levels, and results from ex vivo analysis of NIS staining. Administration of 131I in LPEI-PEG-GE11/NIS-treated SW1736 xenograft mice resulted in significantly reduced tumor growth associated with prolonged survival compared to control animals. CONCLUSIONS: The data open the exciting prospect of NIS-mediated radionuclide imaging and therapy of ATC after non-viral reintroduction of the NIS gene. The high tumor specificity after systemic application makes the strategy an attractive alternative for the treatment of highly metastatic ATC. PMID- 29032726 TI - Effect of macro- and micro-nutrients addition during anaerobic mono-digestion of grass silage in leach-bed reactors. AB - The effect of macro- (NH4Cl) (set I) and micro-nutrients (Fe, Ni, Co and Mo) (set II) addition on chemical oxygen demand (COD) solubilisation during anaerobic mono digestion of grass silage was investigated in two sets of leach bed reactor experiments at 35 degrees C. Results showed that addition of NH4Cl and micro nutrients improved COD solubilisation by 18% (0.56 g SCOD g-1 volatile solids) and 7% (0.45 g SCOD g-1 VS), respectively than control. About 20-50% of the added micro-nutrients were bioavailable in the produced leachates, while the rest (50 80%) were adsorbed onto the grass silage. Results of biological methane potential assays showed that, specific methane yields of grass silage were improved by 17% (0.36 +/- 0.02 m3 CH4 kg-1 VSadded) when NH4Cl was supplemented while Fe, Ni, Co and Mo addition improved methane yields by 15% (0.33 +/- 0.005 m3 CH4 kg-1 VSadded) when compared to control. PMID- 29032727 TI - Spleen-Derived Anti-Inflammatory Cytokine IL-10 Stimulated by Adipose Tissue Derived Stem Cells Protects Against Type 2 Diabetes. AB - Considering that the spleen plays an important role in the occurrence and development of diabetes, we aimed at investigating the role of the spleen in the treatment of type 2 diabetes (T2D) with adipose tissue-derived stem cells (ADSCs). We established a T2D/splenectomy (SPX) rat model by using high-fat diet/streptozotocin administration with SPX, assessed the therapeutic effects of ADSCs, and explored the possible mechanism. A single ADSC infusion was found to ameliorate hyperglycemia and insulin resistance in diabetic rats, accompanied by a considerable number of ADSCs homing to the spleens in T2D rats. Moreover, four times of infusion of ADSCs resulted in a more significant reduction of blood glucose and insulin resistance, whereas SPX exacerbated hyperglycemia and insulin resistance and attenuated the effects of ADSCs. In addition, ADSC infusion promoted anti-inflammatory cytokine interleukin (IL)-10 expression and inhibited pro-inflammatory cytokines IL-6, IL-1beta, and tumor necrosis factor (TNF)-alpha expression in both the spleen and serum of T2D rats without SPX. ADSCs also inhibited serum IL-6, IL-1beta, and TNF-alpha expression, but cannot promote IL 10 expression in T2D rats with SPX. Therefore, these data indicate that the effect of ADSCs ameliorating hyperglycemia and insulin resistance may be partially through promoting spleen-derived anti-inflammatory cytokine IL-10 expression. These novel findings further confirmed the essential role of the spleen in the ADSC treatment of T2D and provide an important theoretical basis for the potential application of ADSCs in T2D therapy. PMID- 29032728 TI - Estrogen receptor beta expression and prognosis of diffuse large B cell lymphoma. AB - OBJECTIVES: Estrogen receptor beta (ERbeta)-selective agonists inhibited B cell lymphoma growth in animal models. However, a recent study found that higher ERbeta expression in tissue from diffuse large B cell lymphoma (DLBCL) patients indicated a poorer survival. This study aimed to determine the ERbeta expression in DLBCL tissue using immunohistochemistry and correlate with clinical outcomes. METHODS: Diagnostic tissues from newly diagnosed adult DLBCL patients treated with Rituximab-Cyclophosphamide/Doxorubicin/Vincristine/Prednisolone were counted for ERbeta1-expressing cells. Nodal lymphoma (N = 41) was analyzed separately from extra-nodal DLBCL (N = 31). RESULTS: On immunohistochemistry, ERbeta1 was expressed in 73.6% of cases with the median expressing cells of 20%. For nodal lymphoma, high ERbeta expression (>=25%) was associated with poorer event free survival (EFS) independent of the international prognostic index with the adjusted hazard ratio (HR) of 2.49 (95% Confidence interval (CI) 1.03-6.00, P = 0.042). On the contrary, high ERbeta expression (>=25%) was associated with superior outcomes in extra-nodal DLBCL with the adjusted HR of 0.25 (95% CI 0.09 0.75, P = 0.013) for EFS and adjusted HR of 0.29 (95% CI 0.10-0.85, P = 0.024) for overall survival in multivariate analyses. CONCLUSION: ERbeta1 protein expression represented opposite prognostic factors in nodal vs. extra-nodal DLBCL. PMID- 29032729 TI - Impact of inserted long rest periods during repeated sprint exercise on performance adaptation. AB - Repeated sprint training consists of a series of brief maximal sprints, 3-7 s in duration, separated by short rest periods of <60 s. However, little is known about the influence of different rest period lengths between sprints on performance adaptation. We determined the influence of inserting long rest periods during repeated sprint training on performance adaptation in competitive athletes. Twenty-one well-trained athletes were separated into either the short rest period group (SHORT; n = 10) or the long rest period group (LONG; n = 11). The training protocol for both groups consisted of two sets of 12 * 6-s maximal cycle sprints with 24 s of rest between sprints. However, in the LONG group, an active rest period of 7 min was inserted every three sprints to attenuate the power output decrement during the latter half of the sprints. The training was performed 3 d/week for 3 weeks. Before and after the training period, repeated sprint ability [12 * 6-s maximal sprint (pedaling) with 24-s rest] was evaluated. Maximal power output during the repeated sprint test was significantly increased only in the LONG group (P < .05). Both groups showed a similar increase in power output during the latter half of sprints (P < .05). The LONG group showed a significant increase in [Formula: see text] (P < .05). These results suggest that repeated sprint training with insertion of longer rest periods is an efficient strategy for improving maximal power output compared with the same training separated by short rest periods alone. PMID- 29032730 TI - Biological groundwater treatment for hexavalent chromium removal at low chromium concentrations under anoxic conditions. AB - The objective of this work is to evaluate biological groundwater treatment systems that will achieve hexavalent chromium removal from groundwater at hexavalent chromium (Cr(VI)) groundwater concentrations in the 0-200 MUg/L range under anoxic conditions. The effect of type of organic substrate added as feed to the groundwater treatment system (milk, sugar and cheese whey), the effect of different concentrations of chemical oxygen demand added in the feed (100, 150 and 200 mg/L) and the effect of different hydraulic residence time (1.7, 0.9 and 0.7 d) on process performance were evaluated through the operation of a series of sequential batch reactors under anoxic conditions. Biomass receiving Cr(VI) contaminated groundwater with a low nitrates content exhibited similar Cr(VI) removal efficiency under reductive conditions, with biomass receiving Cr(VI) contaminated groundwater with a high nitrates content. The concentration of organic substrate was crucial for the microbial reduction of Cr(VI). The different hydraulic residence time of the reactors and the different types of organic substrates added did not affect the efficiency of hexavalent chromium removal which was complete. This study demonstrates that biological systems operating under reductive conditions can efficiently treat groundwater containing low or high nitrates concentration and can provide complete hexavalent chromium removal at initial Cr(VI) concentrations of 200 MUg/L. PMID- 29032731 TI - Cytogenetic risk stratification may predict allogeneic hematopoietic stem cell transplantation outcomes for chronic myelomonocytic leukemia. AB - Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the only curative treatment for chronic myelomonocytic leukemia (CMML); however, factors predicting allo-HSCT outcomes for CMML have not been well defined. This study assessed whether the existing five scoring systems for CMML prognosis could be applied for predicting allo-HSCT outcomes. We retrospectively evaluated 38 patients who underwent allo-HSCT for CMML from 2000 to 2014. At 3 years, overall survival (OS) and disease-free survival were 34.6 and 24.7%, respectively. According to the risk stratification at the time of transplantation, only the CMML-specific cytogenetic risk scoring system could successfully predict transplantation outcomes. At 3 years, OS was 56.7, 12.5, and 0% (p = .01) in the low, intermediate, and high-risk groups. Our data suggest that the CMML-specific cytogenetic risk stratification at transplant may be useful for identifying patients with CMML who may benefit from HSCT. However, further studies are warranted to confirm this observation. PMID- 29032732 TI - A Personalized Week-to-Week Updating Algorithm to Improve Continuous Glucose Monitoring Performance. AB - BACKGROUND: Continuous glucose monitoring (CGM) systems are increasingly becoming essential components in type 1 diabetes mellitus (T1DM) management. Current CGM technology requires frequent calibration to ensure accurate sensor performance. The accuracy of these systems is of great importance since medical decisions are made based on monitored glucose values and trends. METHODS: In this work, we introduce a calibration strategy that is augmented with a weekly updating feature. During the life cycle of the sensor, the calibration mechanism periodically estimates the parameters of a calibration model to fit self monitoring blood glucose (SMBG) measurements. At the end of each week of use, an optimization problem that minimizes the sum of squared residuals between past reference and predicted blood glucose values is solved remotely to identify personalized calibration parameters. The newly identified parameters are used to initialize the calibration mechanism of the following week. RESULTS: The proposed method was evaluated using two sets of clinical data both consisting of 6 weeks of Dexcom G4 Platinum CGM data on 10 adults with T1DM (over 10 000 hours of CGM use), with seven SMBG data points per day measured by each subject in an unsupervised outpatient setting. Updating the calibration parameters using the history of calibration data indicated a positive trend of improving CGM performance. CONCLUSIONS: Although not statistically significant, the updating framework showed a relative improvement of CGM accuracy compared to the non updating, static calibration method. The use of information collected for longer periods is expected to improve the performance of the sensor over time. PMID- 29032733 TI - CAR-T cells and allogeneic hematopoietic stem cell transplantation for relapsed/refractory B-cell acute lymphoblastic leukemia. AB - Relapsed/refractory acute lymphoblastic leukemia (ALL) has a low remission rate after chemotherapy, a high relapse rate and poor long-term survival even when allogeneic hematopoietic stem cell transplantation (allo-HSCT) is performed. Chimeric antigen receptors redirected T cells (CAR-T cells) can enhance disease remission with a favorable outcome for relapsed/refractory ALL, though some cases quickly relapsed after CAR-T cell treatment. Thus, treatment with CAR-T cells followed by allo-HSCT may be the best way to treat relapsed/refractory ALL. In this review, we first discuss the different types of CAR-T cells. We then discuss the treatment of relapsed/refractory ALL using only CAR-T cells. Finally, we discuss the use of CAR-T cells, followed by allo-HSCT, for the treatment of relapsed/refractory ALL. PMID- 29032734 TI - Gammaplex(r) 5 and 10% in the treatment of primary immunodeficiency and chronic immune thrombocytopenic purpura. AB - Immunoglobulin G is used to both prevent infection in primary immunodeficiency diseases (PIDs) and prevent bleeding in immune thrombocytopenic purpura. Gammaplex is a highly purified human intravenous immunoglobulin G available as 5 and 10% liquid formulations. Gammaplex 5% has proven efficacy and safety in PID and immune thrombocytopenic purpura, protecting against serious acute bacterial infections and treating bleeding by improving platelet counts, respectively. The therapeutic effect of Gammaplex 10% is expected to be similar to that of Gammaplex 5% based on demonstrated bioequivalence in a bridging study in PID. The availability of Gammaplex 10% provides another option to individualize therapy according to patient needs, allowing a 34% reduction in infusion time without compromising safety and tolerability. PMID- 29032735 TI - Sarcoidosis, malignancy and immune checkpoint blockade. PMID- 29032737 TI - Melanoma: a prototype of cancer-testis antigen-expressing malignancies. AB - Melanoma is the first malignancy in which expression and immunogenicity of cancer testis antigens (CTAs) have been documented. Several CTAs have been shown to be expressed in melanoma samples especially those with metastatic potential. Many of them have been shown to exert oncogenic effects through modulation of essential pathways involved in melanoma. The crucial role of CTAs in the pathogenesis of melanoma, the high prevalence of expression of CTA panels in melanoma and the presence of spontaneous as well as inducible immune responses against CTAs in melanoma patients potentiate CTAs as immunotherapeutic targets. Numerous clinical trials are now ongoing to evaluate CTA-based immunotherapeutic effects in melanoma patient's survival. NY-ESO-1 and MAGE antigens have the most promising results up to now. PMID- 29032736 TI - Coccidioidomycosis, immunoglobulin deficiency: safety challenges with CAR T cells therapy for relapsed lymphoma. AB - Treatment of patients with relapsed or refractory lymphoma may require allogenic hematopoietic stem cell transplant (HSCT), but treatment of post-transplant relapse disease remains very challenging. Donor lymphocyte infusion and blinatumomab have been used with limited success for the treatment of relapse. Initial data on donor-derived CAR T cells has shown this modality to be safe and highly effective in various hematological malignancies. We present a case of a patient with highly refractory, transformed follicular lymphoma who failed both autologous and allogenic HSCT. Patient achieved long-lasting complete remission with the use of donor origin CD19 CAR T-cell therapy, without any evidence of graft-versus-host disease flare. Our patient later developed disseminated coccidioidomycosis and persistent hypogammaglobulinemia. Immunotherapy using CD19 CAR T cells can be a highly effective salvage modality, especially in cases of focal lymphoma relapse. Long-term immunosuppression secondary to B cell lymphopenia, hypogammaglobulinemia, immunoglobulin subclass deficiency, fungal infections and other infectious complications need to be monitored and promptly treated as indicated. PMID- 29032738 TI - Long-term survival in a patient with low-level inflammatory markers and liver metastasis, converted resectable by TACE. AB - Case report presents the successful treatment of unresectable liver metastasis in a patient with colon cancer. A 44-year-old male underwent right hemicolectomy followed by capecitabine for a moderately differentiated adenocarcinoma of the colon. 2 years later, a liver metastatic lesion was detected and had increased in size despite chemotherapy with capecitabine plus oxaliplatin (XELOX). Curative liver resection was conducted after conversion of unresectable tumor to resectable by transarterial chemoembolization followed by chemotherapy - irinotecan with fluorouracil and folinic acid (FOLFIRI). No recurrence was observed during 22-month follow-up after hepatectomy. PMID- 29032739 TI - Live Leishmania tarentolae secreting HNP1 as an immunotherapeutic tool against Leishmania infection in BALB/c mice. AB - AIM: Several disadvantages about chemotherapy for leishmaniasis has reinforced discovery of novel therapeutic agents especially immunotherapeutics. HNP1, as a member of the mammalian antimicrobial peptides family, is an attractive molecule due to its broad functional spectrum. Here, the in vivo potency of HNP1 in transgenic Leishmania tarentolae as an immunotherapy tool against Leishmania major-infected BALB/c mice was examined. METHODS & RESULTS: 3 weeks after infection with L. major, the treatment effect of L. tarentolae-HNP1-EGFP was pursued. The results were promising in respect to parasite load control and Th1 immune response polarization compared with controls. CONCLUSION: Immunotherapy by live L. tarentolae secreting HNP1 can elicit cellular immune response in a susceptible mouse model in order to control L. major infection. PMID- 29032740 TI - Editor's presentation. PMID- 29032741 TI - Titrated extract of Centella asiatica increases hair inductive property through inhibition of STAT signaling pathway in three-dimensional spheroid cultured human dermal papilla cells. AB - Dermal papilla (DP) is a pivotal part of hair follicle, and the smaller size of the DP is related with the hair loss. In this study, we investigated the effect of titrated extract of Centella asiatica (TECA) on hair growth inductive property on 3D spheroid cultured human DP cells (HDP cells). Significantly increased effect of TECA on cell viability was only shown in 3D sphered HPD cells, not in 2D cultured HDP cells. Also, TECA treatment increased the sphere size of HDP cells. The luciferase activity of STAT reporter genes and the expression of STAT targeted genes, SOCS1 and SOCS3, were significantly decreased. Also, TECA treatment increased the expression of the hair growth-related signature genes in 3D sphered HDP cells. Furthermore, TECA led to downregulation of the level of phosphorylated STAT proteins in 3D sphered HDP cells. Overall, TECA activates the potential of hair inductive capacity in HDP cells. PMID- 29032742 TI - Enhanced cyanide biodegradation by immobilized crude extract of Rhodococcus UKMP 5M. AB - The capability of the crude extract of Rhodococcus UKMP-5M was enhanced by adopting the technology of immobilization. Among the matrices screened to encapsulate the crude extract, gellan gum emerged as the most suitable immobilization material, exceeding the activity of cyanide-degrading enzyme by 61% and 361% in comparison to alginate carrier and non-immobilized crude extract, respectively. Improved bead mechanical strength which supported higher biocatalyst activity by 63% was observed when concentration of gellan gum, concentration of calcium chloride, number of beads and bead size were optimized. The immobilized crude extract demonstrated higher tolerance towards broad range of pH (5-10) and temperature (30 degrees C-40 degrees C), superior cyanide degrading activity over time and improved storage stability by maintaining 76% of its initial activity after 30 days at 4 degrees C. Furthermore, repeated use of the gellan gum beads up to 20 batches without substantial loss in the catalytic activity was documented in the present study, indicating that the durability of the beads and the stability of the enzyme are both above adequate. Collectively, the findings reported here revealed that the utilization of the encapsulated crude extract of Rhodococcus UKMP-5M can be considered as a novel attempt to develop an environmentally favourable and financially viable method in cyanide biodegradation. PMID- 29032743 TI - Adverse outcomes of sick leave due to mental disorders: A prospective study of discordant twin pairs. AB - AIMS: The aim of this study was to investigate whether sick leave due to different mental disorders increased the risk of reoccurring sick-leave, disability pension and unemployment, taking genetics and shared environment into account. METHODS: This register-based cohort study contains 2202 discordant twin pairs 18-64 years old, where one twin had sick leave due to a mental disorder 2005-2006. The end of the sick-leave spell was the start of follow-up for both twins. The twins were followed up for reoccurring sick-leave, disability pension and unemployment (> 180 days in a year), until December 2012. Analyses were censored for disability pension, death, emigration and old-age pension. Cox proportional hazards models with time-varying covariates were used to calculate hazard ratios with 95% confidence intervals (CI). RESULTS: Those with sick leave due to mental disorders had a 3.64 (CI: 3.24-4.08) times higher risk of reoccurring sick-leave within the first two years; after that, hazard ratios were attenuated and explained by genetic factors. The first year, they had 12.24 (CI: 8.11-18.46) times the risk of disability pension. The risk was attenuated but remained at 2.75 (CI: 2.07-3.65) after one year. The risk of unemployment was 1.99 (CI: 1.72-2.31) during the whole follow-up period. The risk of unemployment and disability pension was lower for those with stress-related than other mental disorders, this was less clear for recurrent reoccuring sick-leave. CONCLUSIONS: Sick leave due to mental disorders increased the risk of reoccurring sick-leave within two years, disability pension and unemployment, independent of genetics and shared environment. PMID- 29032745 TI - * Strategic Directions in Osteoinduction and Biomimetics. PMID- 29032744 TI - Acoustic simulation of cochlear implant hearing: Effect of manipulating various acoustic parameters on intelligibility of speech. AB - OBJECTIVE: Cochlear implants process the acoustic speech signal and convert it into electrical impulses. During this processing, many parameters contribute to speech perception. The available literature reviewed the effect of manipulating one or two such parameters on speech intelligibility, but multiple parameters are seldom manipulated. METHOD: Acoustic parameters, including pulse rate, number of channels, 'n of m', number of electrodes, and channel spacing, were manipulated in acoustic simulations of cochlear implant hearing and 90 different combinations were created. Speech intelligibility at sentence level was measured using subjective and objective tests. RESULTS: Principal component analysis was employed to select only those components with maximum factor loading, thus reducing the number of components to a reasonable limit. Perceptual speech intelligibility was maximum for signal processing manipulation with respect to 'n of m' and rate of pulses/sec. Regression analysis revealed that lower rate (=500 pps/ch) and lesser stimulating electrodes per cycle (2-4) contributed maximally for speech intelligibility. Perceptual estimate of speech quality (PESQ) and composite measures of spectral weights and likelihood ratio correlated with subjective speech intelligibility scores. DISCUSSION: The findings are consistent with the literature review, indicating that lesser stimulated channel per cycle reduces electrode interaction and hence improve spectral resolution of speech. Reduced rate of pulses/second enhances temporal resolution of speech. Thus, these two components contribute significantly to speech intelligibility. CONCLUSION: Pulse rate/channel and 'n of m' contribute maximally to speech intelligibility, at least in simulations of electric hearing. PMID- 29032746 TI - Truncated JFH1 E2 Protein: Is it Reliable to be Used in Diagnostic ELISA Test and as a Protein-Based Vaccine Candidate? AB - BACKGROUND: HCV E2 glycoprotein is one of the most attractive proteins for designing an effective vaccine. Deletion of hydrophobic carboxyl-terminal region of this protein is necessary for its secretion, especially when it is expressed in E-coli. In this study we expressed this protein in truncated form and evaluated its application in developing an ELISA test and induction of humoral response in immunized mice. OBJECTIVES: The purpose of this study was expression of HCV truncated E2 protein from JFH1 strain in E-coli BL21(DE3) and evaluation of its antigenicity. METHODS: Truncated E2 region from HCV genotype 2a (JFH1) was amplified by PCR and cloned into a pET28a (+) vector and was used to transform the E-coli DH5alpha strain. The recombinant E2 protein was evaluated both in an ELISA test and induction of humoral immunity in mice. RESULTS: Truncated E2 protein was expressed in BL21(DE3). Its specific antibody was detected in serum samples from HCV infected patients. Also, it could elicit a significant humoral immunity in mice. CONCLUSION: Truncated form of E2 protein which has been expressed in E-coli could be used as an effective antigen both in diagnostic tests such as ELISA and also, as a protein-based vaccine candidate. PMID- 29032747 TI - Development of Potential Small Molecule Therapeutics for Treatment of Ebola Virus. AB - Ebola virus has caused 26 outbreaks in 10 different countries since its identification in 1976, making it one of the deadliest emerging viral pathogens. The most recent outbreak in West Africa from 2014-16 was the deadliest yet and culminated in 11,310 deaths out of 28,616 confirmed cases. Currently there are no FDA-approved therapeutics or vaccines to treat Ebola virus infections. The slow development of effective vaccines combined with the severity of past outbreaks emphasizes the need to accelerate research into understanding the virus lifecycle and the development of therapeutics for post exposure treatment. Here we present a summary of the major findings on the Ebola virus replication cycle and the therapeutic approaches explored to treat this devastating disease. The major focus of this review is on small molecule inhibitors. PMID- 29032748 TI - Mechanistic Understanding of Herbal Therapy in Inflammatory Bowel Disease. AB - The incidence and prevalence of inflammatory bowel diseases (IBD), which comprise ulcerative colitis and Crohn's disease, are increasing dramatically worldwide. Immunomodulators and biological agents can help but cause severe side effects in long-term use. As such, complementary and alternative medicine, in particular herbal remedy, is becoming more and more popular in the treatment of IBD patients. Many natural compounds have been used in clinical trials and some have been proven promising in IBD treatment. To achieve a better understanding of herbal therapy, researchers focus on understanding the underlying mechanisms by using experimental rodent models. The mechanism of the pathogenesis of IBD is complex involving both environmental and genetic factors. IBD is considered as a consequence of impaired epithelial barrier function, gut microbiota dysbiosis, and aberrant immune response. Studies have demonstrated that herbal medicine can improve epithelial proliferation and barrier integrity, restore microbiota homeostasis, and suppress hyper-immune reaction. This review is to summarize current understanding of the molecular basis of herbal treatment of IBD at the levels of epithelial, microbial, and immune regulation. PMID- 29032749 TI - Drug Metabolism as an Object of Computational Analysis by the Monte Carlo Method. AB - BACKGROUND: Metabolism of therapeutic agents in organism is extremely important from a point of view of drug discovery. Unfortunately, experimental estimation of phenomena related to metabolism is available for the limited number of substances. Under such circumstances, the development of computational method to predict endpoints related to metabolism of therapeutic agents becomes an attractive alternative for expensive and timeconsuming experiments. METHOD: A group of semi-empirical calculations are a convenient compromise between a necessity to carry out experiments and the desire to involve in the practical analysis of a bigger amount of molecular features related to the impact of different substances on metabolism. The practical organization of the investigational analysis may be based on the Monte Carlo technique. RESULTS: The statistical quality of predictive models built up with the Monte Carlo method is usually quite satisfactory. Thus, the semi-empirical calculation using the Monte Carlo method may extend available database, which are related to metabolism of different therapeutic agents. It should be noted that the above approach involves minimal animal testing. The CORAL software has been used for the calculations. CONCLUSION: The described approach based on the Monte Carlo technique is a tool to predict behavior of therapeutic agents in organism. The approach is flexible: small and large molecules (peptides) can be studied by means of building up models of their endpoints which have impact upon metabolism phenomena. PMID- 29032750 TI - Longitudinal Neuropsychological Outcome in Taiwanese Alzheimer's Disease Patients Treated with Medication. AB - BACKGROUND: The longitudinal change of neuropsychological tests (NPTs) in treated Alzheimer's disease (AD) is essential to understand the interplay of a therapeutic response from medication and a disease decline due to degenerative processes. The aim of our study is to investigate the annual cognitive progression as measured by commonly used NPTs in treated AD patients and to assess the potential predictors of disease progression. METHODS: Participants (N=455) diagnosed with AD and treated with cholinesterase inhibitors (ChEIs) or memantine at memory clinics in three hospitals in southern Taiwan from January 2009 to December 2014 were enrolled in this prospectively registered study. The mean follow-up duration was 3.2 +/- 0.9 years. The patients' severity of AD ranged from very mild (clinical dementia rating (CDR) scales = 0.5) to moderate (CDR = 2.0). At baseline and for each year, participants were assessed by various NPTs commonly used in clinical practice, including the Mini-Mental State Examination (MMSE), Cognitive Abilities Screening Instrument (CASI), CDR and CDR sum of boxes (CDR-SB). All enrolled participants were assessed for at least two years during follow-up. We used mixed-effect models to examine annual progression in the whole group and to compare the cognitive progression between the subgroups with very mild AD and mild to moderate AD. Potential predictors of disease progression, including age, gender, the type of ChEI, and Apolipoprotein E (APOE) genotype, were also analyzed. RESULTS: Among the study population, the rate of change in MMSE scores were -1.15 points per year, CASI scores were -4.27 points per year, and CDR-SB scores were 0.81 points per year. The slope of annual changes of NPTs differed significantly between the CDR 0.5 group and the CDR 1 to 2 group. The most significant predictors of the faster progression were increasing age and higher CDR stage at entry; however, different types of ChEI therapy (donepezil vs. rivastigmine users), and APOE genotype were not associated with the rate of disease progression. CONCLUSIONS: This longitudinal data shows the mean annual change of the MMSE, CASI, CDR, and CDR-SB in treated AD patients. The data may provide clinicians with information regarding to the cognitive decline rate in every year while their AD patients receive approved pharmacological therapy in real-world practice. Increasing age and severity of dementia when receiving therapy are the main factors that associated with faster deterioration. PMID- 29032751 TI - Development of Drug Targeting and Delivery in Cervical Cancer. AB - Cervical cancer is the second most common cancer in women. Standard treatment options available for cervical cancer include chemotherapy, surgery and radiation therapy associated with their own side effects and toxicities. Tumor-targeted delivery of anticancer drugs is perhaps one of the most appropriate strategies to achieve optimal outcomes from the treatment and improve the quality of life. Recently nanocarriers based drug delivery systems owing to their unique properties have been extensively investigated for anticancer drug delivery. In addition to that addressing the anatomical significance of cervical cancer, various local drug delivery strategies for the cancer treatment are introduced like: gels, nanoparticles, polymeric films, rods and wafers, lipid based nanocarrier. Localized drug delivery systems allow passive drug targeting results in high drug concentration at the target site. Further they can be tailor made to achieve both sustained and controlled release behavior, substantially improving therapeutic outcomes and minimizing side effects. This review summarizes the meaningful advances in drug delivery strategies to treat cervical cancer. PMID- 29032752 TI - Association between Apolipoproteins AI and B and Ultrasound Indicators of Carotid Atherosclerosis. AB - BACKGROUND: Apolipoproteins A-I and B (apoA-I and apoB) may be better indicators of the risk of cardiovascular and cerebrovascular diseases than conventional risk factors (RFs). The onset of ischemic stroke (IS) may be preceded by the development of atherosclerotic changes in carotid arteries, which can be detected by ultrasound. Only a certain % of patients with IS have an (underlying) carotid etiology. OBJECTIVE: The aim of our study was to determine the association between ultrasound indicators of carotid atherosclerosis and the presence of apolipoproteins and other biomarkers in patients with IS. METHODS: The study included 120 patients with clinically first, non-cardioembolic ischemic stroke in the carotid circulation. For all patients the following data were recorded: risk factors (hypertension, diabetes, hyperlipoproteinemia, smoking, obesity, metabolic syndrome, (MetS) hyperhomocysteinemia and inflammation), and levels of blood pressure, glucose, glycosylated hemoglobin, lipids, apoA-I and apoB apolipoproteins, body mass index, homocysteine, and C-reactive protein (CRP). Carotid duplex ultrasound was used to measure carotid intima media thickness (cIMT) and determine the presence of an unstable (hypoechogenic) plaque. RESULTS: The most significant associations were found between cIMT and older age (beta=0.230; p=0.006), lower concentrations of apoA-I (beta=-0.244; p=0.008) and a higher apoB/apoA-I ratio (beta=0.247; p=0.007). The presence of a hypoechogenic plaque was most significantly associated with increased concentrations of apoB (OR=2.29; 95% CI=4.9-173.5; p<0.0001), the presence of MetS (OR=9.2; 95% CI=2.9 29.2; p<0.0001) and elevated CRP (OR=2.7; 95% CI=1.1-6.9; p = 0.046). CONCLUSION: Among RFs and their biomarkers, apoA-I, apoB and the apoB/apoA-I ratio showed strong association with ultrasound indicators of carotid atherosclerosis in IS patients. PMID- 29032753 TI - Halogenated Agents and Cardiovascular Surgery: Has Mortality Really Decreased? AB - Halogenated anesthetic agents (desflurane, isoflurane and sevoflurane) may have cardioprotective properties at therapeutic doses against myocardial intraoperative ischemia-reperfusion injury. Cardioprotection mechanisms are related to mitochondrial and anti-apoptotic signaling pathways. Experimentals and human studies have proven that their use may reduce morbidity and mortality in the setting of cardiac surgery, including a reduction in myocardial infarct size and mechanical ventilation needs. In contrast, total intra-venous propofol based anesthesia may be detrimental. In the present review, we show the rationale for the perioperative use of halogenated anesthetics based on mechanisms of action, experimental research and human studies. Considerations and major concerns regarding their use, the present evidence for their use in other areas, such as major non-cardiac surgery and intensive care unit patients, and future perspectives are also discussed. PMID- 29032754 TI - Pharmacological Neuroprotection in Cardiac Surgery: Effectiveness of Pharmacologic-Preconditioning with Erythromycin. AB - Regardless of the degree of advances in neuroprotective strategies, and despite the technological progress in neuromonitoring, brain injury still remains the "Achilles' heel" in cardiac surgery. A large number of pharmacological and non pharmacological therapeutic interventions have been investigated during the last two decades. Recently, both theoretical and experimental findings suggest benefits of pharmacological cerebral protection, although, there is no conclusive evidence of clinical superiority of specific agents that have been applied as neuroprotectants, in human randomized controlled trials. Pre-ischemic conditioning has also been used in an attempt to reduce the incidence of brain injury following cardiac surgery. In light of previous evidence showing that pharmacologic preconditioning with a single dose of erythromycin induces tolerance against transient global cerebral ischemia in rats, we examined whether erythromycin would reduce the number of apoptotic neurons in the neocortex in our acute porcine model of hypothermic circulatory arrest (HCA). Pre-ischemic conditioning with a single dose of the antibiotic erythromycin, applied 12 h before HCA, significantly reduced neuronal injury in the neocortex of the porcine brain, suggesting that cerebral protection may be achieved with erythromycin pharmacological preconditioning in cardiac surgery on an experimental basis. Since erythromycin has been effectively used in clinical practice with few side effects, these findings suggest that it could be a promising candidate for potential clinical neuroprotective strategy. PMID- 29032755 TI - Insulin Resistance the Link between T2DM and CVD: Basic Mechanisms and Clinical Implications. AB - Insulin resistance (IR) is a cardinal feature of type 2 diabetes mellitus (T2DM). It also is associated with multiple metabolic abnormalities which are known cardiovascular disease (CVD) risk factors. Thus, IR not only contributes to the development of hyperglycemia in T2DM patients, but also to the elevated CVD risk. Improving insulin sensitivity is anticipated to both lower the plasma glucose concentration and decrease CVD risk in T2DM patients, independent of glucose control. We review the molecular mechanisms and metabolic consequences of IR in T2DM patients and discuss the importance of addressing IR in the management of T2DM. PMID- 29032756 TI - Antidiabetic Drugs as Antihypertensives: New Data on the Horizon. AB - BACKGROUND: The prevalence of Type 2 Diabetes Mellitus (T2DM) is increasing worldwide; this is stimulating more research into the optimal management of this disease. Cardiovascular Disease (CVD) remains the commonest cause of death in individuals with T2DM. Besides hyperglycaemia, an explanation for the increased mortality in this population is the increased prevalence of comorbidities, such as hypertension and dyslipidaemia. Recent population-based studies described a prevalence of hypertension >80% in patients with T2DM. In the last decade new classes of antidiabetic medications have been developed that are effective not only for the management of hyperglycaemia and but also for tailoring treatment according to individual needs and characteristics. Regulatory authorities demand the new antidiabetic medications to be examined for Cardiovascular (CV) safety. Interestingly it has been shown, mainly through CV safety trials, that some new antidiabetic medications not only have glucose lowering effects, but also Blood Pressure (BP) lowering effects, contributing to CV risk reduction. CONCLUSION: This review considers the effect of older and newer antidiabetic medications on BP in patients with T2DM. PMID- 29032757 TI - An Evidence-based Review of Medicinal Herbs for the Treatment of Gastroesophageal Reflux Disease (GERD). AB - BACKGROUND: Gastroesophageal reflux disease (GERD) is one of the most common diseases in society, affecting up to 40% of the population. It has major impact on the quality of life and a high burden on medical expenditure. In this work, herbs used by ancient Iranians to treat GERD have been introduced. METHODS: Different well-known Persian textbooks and recent electronic databases were searched to explore the treatment of GERD and the pharmacological mechanisms of the identified medicinal plants. RESULTS: GERD has been known for many centuries, and many herbal remedies for its treatment have been elucidated in traditional medical literature. We found 25 medicinal herbs in Persian medicine books and searched for evidence to support them in the current literature. CONCLUSION: Although their active components or the mechanism of action were not known by the ancient Persians at that time, their persistent use during different centuries might indicate their effectiveness. Owing to their potential, medicinal herbs are a viable option for the treatment of diseases like GERD even today. PMID- 29032758 TI - Multifaceted Effects of Delta Opioid Receptors and DADLE in Diseases of the Nervous System. AB - BACKGROUND: The opioid system is considered a potential therapeutic target in a variety of neurological disorders. Delta opioid receptors (DORs) are broadly expressed in the brain, and their activation protects cells from hypoxic/ischemic insults by counteracting disruptions of ionic homeostasis and initiating neuroprotective pathways. The DOR agonist D-Ala2-D-Leu2-Enkephalin (DADLE) promotes neuronal survival, mitigates apoptotic pathways, and protects neurons and glial cells from ischemia-induced cell death, thus making DADLE a promising therapeutic option for stroke. The significant amount of research regarding DORs and DADLE in the last decades also suggests their potential in treating other neurological disorders. METHODS: This review compiled relevant literature detailing the role of DORs and agonists in central nervous system function and neuropathologies. RESULTS: Several studies demonstrate potential mechanisms implicating a key interaction between DORs and DADLE in conferring neuroprotective benefits. A better understanding of DOR function in disease specific contexts is critical to transitioning DOR agonists into the clinic as a therapy for stroke and other neurological diseases. CONCLUSION: Evidence-based studies support the potential of the delta-opioid family of receptors and its ligands in developing novel therapeutic strategies for stroke and other brain disorders. PMID- 29032759 TI - Predictable and Preventable: Historical and Current Efforts to Improve Child Injury Prevention. AB - BACKGROUND: Childhood injuries are a global epidemic. Accidents resulting in childhood injury and death were first identified as a concern over a century ago. However, "accidents" leading to injury were not recognized as being predictable and preventable until more recently. OBJECTIVES: To describe the worldwide epidemic of childhood injuries, and look at international successes in the field of injury prevention. METHODS: Literature pertaining to injury prevention was reviewed to describe the history of childhood injury prevention, guiding principles of injury prevention, successful strategies for prevention, and future directions. RESULT AND CONCLUSION: Through surveillance, evidence-based injury prevention initiatives, and multi-disciplinary collaboration, we anticipate further reduction in childhood injuries. PMID- 29032760 TI - 9-(4'-dimethylaminophenyl)-2,6,7-trihydroxy-xanthene-3-one is a Potentially Novel Antiplatelet Drug which Antagonizes the Effect of Thromboxane A2. AB - BACKGROUND: Currently, used oral antiplatelet drugs are both limited and associated with the risk of treatment failure/resistance. Research in this area is hence highly desired. A series of xanthene-3-ones derivatives, we had synthesized, showed us that these derivatives had antiplatelet activity. As far as we know, no research on the effects of xanthen-3-ones in this area has been done. OBJECTIVE: The aim was to study the antiplatelet potential of a series of synthesised 9-phenylxanthene- 3-ones and to find the ideal structural feature(s) for antiplatelet potential and determine the mechanism of action. METHODS: The compounds were synthesized from 1,2,4-triacetoxybenzene and various benzaldehydes. The reaction proceeded smoothly under acidic alcoholic conditions, furnishing the desired products in good yields. The compounds were first screened in whole human blood where platelet aggregation was induced by arachidonic acid. Further analysis was targeted at search of the mechanism of action. RESULTS: Initial screening showed that a majority of the synthesized derivatives had substantial antiplatelet potential. None of the compounds were able to block cyclooxygenase 1 or thromboxane synthase. The mechanism appeared to be based on antagonism of thromboxane effects. The most potent compound 9-(4' dimethylaminophenyl)-2,6,7-trihydroxy-xanthene-3-one had better potential to block collagen induced platelet aggregation than clinically used acetylsalicylic acid. CONCLUSION: The last mentioned derivative is promising for further in vivo testing. PMID- 29032761 TI - Investigation on the Effects of Antimicrobial imidazo[2,1-b]thiazole Derivatives on the Genitourinary Microflora. AB - BACKGROUND: Fused five-membered heterocyclic rings containing bridgehead nitrogen atom are particularly versatile in the field of medicinal chemistry because of their different biological activities. Among them, the imidazo[2,1-b]thiazole is an attractive fused heterocyclic core that has been extensively studied. OBJECTIVE: The aim of the current study was to study the therapeutic applications of imidazo[2,1- b]thiazole derivatives as antimicrobial agents for the treatment of genitourinary infections. METHOD: A traditional synthetic methodology was involved to obtain a small series of imidazothiazole derivatives. RESULTS: Herein, we report the antimicrobial activity of the imidazo[2,1-b]thiazole or imidazo[2,1- b]thiazolidine derivatives against selected fungi, Gram-positive and Gram-negative bacteria. Moreover, experiments were carried out to investigate the interference towards the endogenous microbiota. CONCLUSION: The most interesting of the series are the thiocyano derivatives (19, 23) showing a good profile for the treatment of genitourinary infections: a spectrum of activity covering both bacteria and fungi together with a reduced impact versus critical lines of Lactobacillus exerting defense against pathogens. PMID- 29032762 TI - A Review of Evolutionary and Cyclical Changes in the Surgical Approach to Aortic Valve Disease. AB - INTRODUCTION: Aortic valve surgery is no exception to the general rule that history is a cycle in many fields. This manuscript aims to assist readers in transitioning from past to present and on into the future within the field of aortic valve surgery. METHODS: The existing literature has been examined, including old and modern articles published on pubmed, old articles non visible on pubmed, old and recent books on the history of medicine, looking for similarities and repetitions in techniques and surgical approaches to the aortic valve in the past and the current times. RESULTS: Steps of evolution included a blind approach, plasty procedures under direct visualization of the valve without the aid of cardiopulmonary bypass, prosthetic valve replacements via sternotomies with cardiopulmonary bypass, minimally-invasive access routes, trans-catheter aortic valve implants (TAVI), suture-less prostheses, mini-thoracotomies incorporating suture-less prostheses, and finally, totally-endoscopic aortic valve replacements. CONCLUSION: After the advent of CPB and several decades of open-heart surgery with full sternotomies, the minimally-invasive approach has re emerged. Supported by a commitment to smaller incisions and shorter bypass times, the concept is now being aggressively developed. The cycling of science, including the field of aortic valve surgery, means that ingenious theories and concepts that have fallen by the wayside can be brought back and explored again with current tools and enhanced knowledge. PMID- 29032763 TI - Basics in Endoscopic Ultrasound Part 1: Diagnostic Indications and Tissue Sampling. AB - BACKGROUND: Endoscopic Ultrasound has been used in the clinical arena for almost 35 years and it is now well-integrated in everyday hospital practice. METHOD: We conducted a systematic review of the available English-language articles. OBJECTIVE: The purpose of this review is to summarize all the relevant indications to endoscopic ultrasound and analyze its relevant data in terms of accuracy and clinical outcomes. RESULTS: More than 5000 scientific papers published in the literature have demonstrated its high accuracy for the diagnosis and staging of a variety of benign and malignant conditions. Staging indications include gastroesophageal and rectal cancers. Diagnostic, staging and therapeutic indications include diseases of the pancreaticobiliary area. Finally, differential diagnosis of submucosal tumors represents another important indication to this technique. PMID- 29032764 TI - Nanoemulsions for Cosmetic Applications: What Innovation Status? AB - BACKGROUND: Brazil is the fourth largest personal hygiene, perfumery and cosmetics (HPPC) consumer market in the world, leading industries to invest heavily in cosmetic research. Nanotechnology is studied and applied in several branches of health and, in the cosmetic area, focuses on the effectiveness of the products, safety of use and stability of the formulation. Thus, nanoemulsions appear as an attractive option for cosmetic manufacturers. OBJECTIVE: In this context, a technological investigation was carried out, through a patent search, with the objective of verifying the current panorama of the nanoemulsions for the development of cosmetic formulations. METHOD: To do this, we consulted the Espacenet(r) database, using the word "nanoemulsion", associated with the IPC code "A61q19". A total of 188 patents were found, of which 118 were available for display, whose data were organized into charts for discussion. RESULT: The results show that developed countries are still the largest patent holders in the area, with the exception of South Korea, which ranked first with 39 patent applications. France appears as the most important in this research, but the largest market of interest for this technology is North America. Brazil seems to have less number of patents (3) and have not been registered in the country. CONCLUSION: The predominance of cosmetic nanoemulsions was mainly for aesthetic purposes. Nanoemulsions for cosmetic application still have potential for research and development, especially when related to raw materials of plant origin, where Brazil can be highlighted. PMID- 29032765 TI - Recent Patent Advances for Neurodegenerative Disorders and its Treatment. AB - BACKGROUND: Neurodegenerative disorders are among the most common challenging diseases that affect the population with extreme medical and financial burdens. Widely seen neurodegeneration affects population of all ages, as it progresses with age, affecting a large proportion of elderly population including patients, caregivers, and immensely increasing the financial load of the country. These diseases have a very complex nature that frequently results from combined genetic, environmental and pathological factors. Various challenges are faced by the researchers working on the pathogenesis and the possible treatment of neurodegenerative disorder. OBJECTIVE: The review has analysed for recent patent documents and treatment approaches for neurodegenerative disorders. This review does not relate to potential targets such as ( i.e. protein where modulation could be predicted to impact on pathophysiology), rather it mainly focuses on various available patented approaches for neurodegenerative disorders. METHOD: The study design is based on updating the international and national literatures and an exhaustive patent search, compiling various patented documents for the treatment of neurodegenerative disorders (EP2282779A1, US20110229555A1) to provide information in the state of technological innovation in terms of research and development. RESULTS: In the present review, the authors described various neurodegenerative diseases, there treatment strategies and emphasized on various patented approaches for age-related neurodegenerative disorders such as novel therapeutic methods for treating Alzheimer's and associated disorders via modulated cell stress response EP2282779A1, through combined therapies that modulate angiogenesis US20120058992A1. CONCLUSION: The review will attract the interest of academics, researchers, students and pharmaceutical companies with regard to the recent on-going activities in neurodegenerative disorders. PMID- 29032766 TI - The Effects of Drug Metabolizing Enzyme Inhibitors on Hepatic Efflux and Uptake Transporters. AB - BACKGROUND: Non-selective chemical inhibitors of phase I and phase II enzymes are commonly used in in vitro metabolic studies to elucidate the biotransformation pathways of drugs. However, the inhibition of the inhibitors on efflux and uptake transporters is not well investigated, potentially leading to unexpected and ambiguous results in these studies. OBJECTIVE: The commonly used metabolizing enzyme inhibitors, 1-aminobenzotriazole (ABT), SKF- 525A, pargyline, allopurinol, menadione, methimazole, piperine and raloxifene, were examined for their potential inhibition of the major hepatic ABC (ATP binding cassette) and SLC (solute carrier) transporters. METHODS: Different concentrations of the metabolizing enzyme inhibitors were used to study their effects on ABC and SLC transporters expressed in MDR1-MDCKI, Bcrp1-MDCKII, OATP1B1-HEK, OATP1B3-HEK, OCT1-HEK, OCT3-HEK cells and MRP2 vesicles. RESULTS: ABT, allopurinol and methimazole had no inhibitory effects on MDR1, Bcrp1, MRP2 or on OATP1B1, OATP1B3, OCT1 or OCT3. Pargyline did not inhibit OATP1B1 or OATP1B3, but weakly inhibited OCT1 and OCT3. In contrast, SKF-525A showed inhibition of not only MDR1, Bcrp1 and MRP2 but also OATP1B1, OATP1B3 and OCT1. Menadione and raloxifene weakly inhibited Bcrp1, but the inhibition of raloxifene on MDR1 was as potent as on the xanthine oxidase pterin oxidation. Piperine showed inhibition of MDR1, Bcrp1, OATP1B1, OCT1 and OCT3. CONCLUSION: ABT, pargyline, allopurinol and methimazole have no inhibitory effects on the studied ABC and SLC transporters, suggesting the inhibitors are unlikely to cause confounding inhibition of transporters when used in metabolism studies. However, SKF525A, menadione, raloxifene and piperine can inhibit the activities of ABC and/or SLC transporters. PMID- 29032768 TI - Molluscicidal effect of Achyranthes aspera L. (Amaranthaceae) aqueous extract on adult snails of Biomphalaria pfeifferi and Lymnaea natalensis. AB - BACKGROUND: Intestinal schistosomiasis caused by Schistosoma mansoni is a wide spread disease in most parts of Ethiopian highlands. Snail control is one major strategy in schistosomiasis control. The use of molluscicidal plant products is becoming interesting due to their environmental friendliness, accessibility and easy application. This research is aimed to evaluate the molluscicidal effect of Achyranthes aspera on Biomphalaria pfeifferi and Lymnaea natalensis snails, which are of great medical and veterinary importance in Ethiopia. METHODS: Adult B. pfeifferi snails were exposed to the various concentrations of A. aspera aqueous leaf extract for 24, 48 and 72 h. Similarly, adult L. natalensis snails were exposed to the extract for 24 h. Mortality data were analyzed using probit regression model. Phytochemical content of the plant was analyzed using standard screening methods. RESULTS: The plant's molluscicidal effect on the two snail species was demonstrated. The 24 h LC50 and LC90 values against L. natalensis were 69.5 and 93.9 ppm respectively. In the 24, 48 and 72 h exposure of B. pfeifferi, the LC50 values were 72.4, 69.9, 64.7 ppm and the LC90 were 96.5, 93.8, 92.8 ppm, respectively. The phytochemical screening tests indicated presence of saponins. CONCLUSION: From the findings of this study, A. aspera has a molluscicidal potential. The result provides a useful foundation for further in depth studies to ensure its wider applicability in different water bodies and evaluate its toxic effects on non-target species. PMID- 29032767 TI - Metabonomics uncovers a reversible proatherogenic lipid profile during infliximab therapy of inflammatory bowel disease. AB - BACKGROUND: One-third of inflammatory bowel disease (IBD) patients show no response to infliximab (IFX) induction therapy, and approximately half of patients responding become unresponsive over time. Thus, identification of potential treatment response biomarkers are of great clinical significance. This study employs spectroscopy-based metabolic profiling of serum from patients with IBD treated with IFX and healthy subjects (1) to substantiate the use of spectroscopy as a semi-invasive diagnostic tool, (2) to identify potential biomarkers of treatment response and (3) to characterise the metabolic changes during management of patients with tumour necrosis factor-alpha inhibitors. METHODS: Successive serum samples collected during IFX induction treatment (weeks 0, 2, 6 and 14) from 87 IBD patients and 37 controls were analysed by 1H nuclear magnetic resonance (NMR) spectroscopy. Data were analysed with principal components analysis and orthogonal projection to latent structures discriminant analysis using SIMCA-P+ v12 and MATLAB. RESULTS: Metabolic profiles were significantly different between active ulcerative colitis and controls, active Crohn's disease and controls, and quiescent Crohn's disease and controls. Metabolites holding differential power belonged primarily to lipids and phospholipids with proatherogenic characteristics and metabolites in the pyruvate metabolism, suggestive of an intense inflammation-driven energy demand. IBD patients not responding to IFX were identified as a potentially distinct group based on their metabolic profile, although no applicable response biomarkers could be singled out in the current setting. CONCLUSION: 1H NMR spectroscopy of serum samples is a powerful semi-invasive diagnostic tool in flaring IBD. With its use, we provide unique insights into the metabolic changes taking place during induction treatment with IFX. Of distinct clinical relevance is the identification of a reversible proatherogenic lipid profile in IBD patients with active disease, which partially explains the increased risk of cardiovascular disease associated with IBD. PMID- 29032770 TI - Developmental competence of Dromedary camel (Camelus dromedarius) oocytes selected using brilliant cresyl blue staining - ERRATUM. PMID- 29032769 TI - Amphetamine Modestly Improves Conners' Continuous Performance Test Performance in Healthy Adults. AB - OBJECTIVES: Amphetamine improves vigilance as assessed by continuous performance tests (CPT) in children and adults with attention deficit hyperactivity disorder (ADHD). Less is known, however, regarding amphetamine effects on vigilance in healthy adults. Thus, it remains unclear whether amphetamine produces general enhancement of vigilance or if these effects are constrained to the remediation of deficits in patients with ADHD. METHODS: We tested 69 healthy adults (35 female) on a standardized CPT (Conner's CPT-2) after receiving 10- or 20-mg d amphetamine or placebo. To evaluate potential effects on learning, impulsivity, and perseveration, participants were additionally tested on the Iowa Gambling Task (IGT) and Wisconsin Card Sorting Task (WCST). RESULTS: Participants receiving placebo exhibited the classic vigilance decrement, demonstrated by a significant reduction in attention (D') across the task. This vigilance decrement was not observed, however, after either dose of amphetamine. Consistent with enhanced vigilance, the 20-mg dose also reduced reaction time variability across the task and the ADHD confidence index. The effects of amphetamine appeared to be selective to vigilance since no effects were observed on the IGT, WCST, or response inhibition/perseveration measures from the CPT. CONCLUSIONS: The present data support the premise that amphetamine improves vigilance irrespective of disease state. Given that amphetamine is a norepinephrine/dopamine transporter inhibitor and releaser, these effects are informative regarding the neurobiological substrates of attentional control. (JINS, 2018, 24, 283-293). PMID- 29032771 TI - Short-term effects of atmospheric pressure, temperature, and rainfall on notification rate of community-acquired Legionnaires' disease in four European countries - CORRIGENDUM. PMID- 29032772 TI - Influenza vaccination status and outcomes among influenza-associated hospitalizations in Columbus, Ohio (2012-2015). AB - Prior studies suggest that the influenza vaccine is protective against some outcomes in hospitalized patients infected with influenza despite vaccination. We utilized surveillance data from Columbus, Ohio to investigate this association over multiple influenza seasons and age groups. Data on laboratory-confirmed influenza-associated hospitalizations were collected as a part of the Influenza Hospitalization Surveillance Project for the 2012-2013, 2013-2014, and 2014-2015 influenza seasons. The association between influenza vaccination status was examined in relation to the outcomes of severe influenza and diagnosis of pneumonia among patients receiving antiviral treatment. Data were analyzed using multivariable logistic regression. We observed no overall association between influenza vaccination status and severe influenza among hospitalized patients. During the 2013-2014 season, those who were vaccinated were 41% less likely to be diagnosed with pneumonia compared with those who were unvaccinated (OR = 0.59 95% CI 0.41-0.86). The influenza vaccine may provide a secondary preventive function against pneumonia among influenza cases requiring hospitalization. However, a protective effect was only observed in 2013-2014, an influenza H1N1 dominant year. Differences in circulating influenza virus strains and vaccine matching to the circulating strains during influenza seasons may impact this association. PMID- 29032773 TI - Understanding the development of psychopathy: progress and challenges. AB - Psychopathy is an adult condition that incurs substantial societal and individual costs. Here we review neurocognitive and genetically informative studies that shed light on how and why this condition emerges. Children cannot present with psychopathy. However, the presence of callous-unemotional (CU) traits can distinguish a group of children who are at elevated risk of psychopathy in adulthood. These children display diminished empathy and guilt and show attenuated brain activation to distress cues in others. Genetically informative studies indicate that individual differences in CU traits show moderate-to-strong heritability, but that protective environmental factors can counter heritable risk. On the basis of the extant research findings, we speculate on what might represent the priorities for research over the next decade. We also consider the clinical implications of these research findings. In particular, we consider the importance of delineating what precisely works for children with CU traits (and their parents) and the ways in which intervention and prevention programs may be optimized to improve engagement as well as clinical outcomes. PMID- 29032774 TI - The potential roles of c-Jun N-terminal kinase (JNK) during the maturation and aging of oocytes produced by a marine protostome worm. AB - Previous investigations have indicated that c-Jun N-terminal kinase (JNK) regulates the maturation and aging of oocytes produced by deuterostome animals. In order to assess the roles of this kinase in a protostome, oocytes of the marine nemertean worm Cerebratulus were stimulated to mature and subsequently aged before being probed with phospho-specific antibodies against active forms of JNK and maturation-promoting factor (MPF). Based on blots of maturing oocytes, a 40-kD putative JNK is normally activated during germinal vesicle breakdown (GVBD), which begins at 30 min post-stimulation with seawater, whereas treating immature oocytes with JNK inhibitors downregulates both the 40-kD JNK signal and GVBD, collectively suggesting a 40-kD JNK may facilitate oocyte maturation. Along with this JNK activity, mature oocytes also exhibit high levels of MPF at 2 h post-stimulation. However, by ~6-8 h post-GVBD, mature oocytes lose the 40-kD JNK signal, and at ~20-30 h of aging, an ~48-kD phospho-JNK band arises as oocytes deactivate MPF and begin to lyse during a necroptotic-like mode of death. Accordingly, JNK inhibitors reduce the aging-related 48-kD JNK phosphorylation while maintaining MPF activity and retarding oocyte degradation. Such findings suggest that a 48-kD JNK may help deactivate MPF and trigger death. Possible mechanisms by which JNK activation either together with, or independently of, protein neosynthesis might stimulate oocyte degradation are discussed. PMID- 29032775 TI - Noncommunicable Diseases After the Great East Japan Earthquake: Systematic Review, 2011-2016. AB - OBJECTIVE: Noncommunicable diseases (NCDs), including mental disorders, have become major threats to human health worldwide. People with NCDs are particularly vulnerable to disasters. We systematically reviewed reports describing studies of NCDs at the time of the Great East Japan Earthquake (GEJE) to clarify the circumstances of people with NCDs and to build strong measures to support them. METHODS: Relevant articles published from March 2011 through December 2016 were collected by searching the PubMed database (National Library of Medicine). We specifically examined reports describing NCDs and including the key words "East Japan Earthquake." NCDs included every disease type aside from injury and infectious disease. RESULTS: We collected 160 relevant articles, 41 of which described NCDs that existed in residents before the GEJE. Articles describing respiratory diseases and mental illnesses were found most frequently. Interruption of regular treatment was the most frequent problem, followed by lack of surveillance capacity. We found 101 reports describing NCDs that had developed after the GEJE, of which 60% were related to mental health issues. CONCLUSIONS: NCDs pose major health issues after large-scale disasters. Establishment of strong countermeasures against interruption of treatment and surveillance systems to ascertain medical needs for NCDs are necessary to prepare for future disasters. (Disaster Med Public Health Preparedness. 2018; 12: 396-407). PMID- 29032777 TI - Acute urinary retention after Black Widow envenomation: a case report. AB - Latrodectism following Black Widow envenomation is rare in Canada. We present the case of a previously healthy 50 year old male who presented with an acute abdomen, hypertension, and urinary retention. After a thorough work up it was determined to be as a result of a Black Widow spider bite. Due to climate change we may see more cases of Latrodectism in the future and it should be considered as a differential diagnosis in anyone presenting with an acute abdomen after an insect bite. PMID- 29032776 TI - Neuropsychological Recovery Trajectories in Moderate to Severe Traumatic Brain Injury: Influence of Patient Characteristics and Diffuse Axonal Injury. AB - OBJECTIVES: The goal of the present study was to elucidate the influence of demographic and neuropathological moderators on the longitudinal trajectory neuropsychological functions during the first year after moderate to severe traumatic brain injury (TBI). In addition to examining demographic moderators such as age and education, we included a measure of whole-brain diffuse axonal injury (DAI), and examined measures of processing speed (PS), executive function (EF), and verbal learning (VL) separately. METHODS: Forty-six adults with moderate to severe TBI were examined at 3, 6, and 12 months post-injury. Participants underwent neuropsychological evaluation and neuroimaging including diffusion tensor imaging. Using linear mixed effects modeling, we examined longitudinal trajectories and moderating factors of cognitive outcomes separately for three domains: PS, VL, and EF. RESULTS: VL and EF showed linear improvements, whereas PS exhibited a curvilinear trend characterized by initial improvements that plateaued or declined, depending on age. Age moderated the recovery trajectories of EF and PS. Education and DAI did not influence trajectory but were related to initial level of functioning for PS and EF in the case of DAI, and all three cognitive domains in the case of education. CONCLUSIONS: We found disparate recovery trajectories across cognitive domains. Younger age was associated with more favorable recovery of EF and PS. These findings have both clinical and theoretical implications. Future research with a larger sample followed over a longer time period is needed to further elucidate the factors that may influence cognitive change over the acute to chronic period after TBI. (JINS, 2018, 24, 237-246). PMID- 29032778 TI - Has iodized salt reduced iodine-deficiency disorders among school-aged children in north-west Iran? A 9-year prospective study. AB - OBJECTIVE: Low iodine intakes are associated with goitre and other iodine deficiency disorders (IDD) that have affected billions of people worldwide. We aimed to assess total goitre rate (TGR) and urinary iodine concentration (UIC) in schoolchildren between 2007 and 2015, percentage of iodized salt consumption by households, and salt iodine content at production, distribution and household levels in north-west Iran. Design/Setting/Subjects UIC assessed among schoolchildren in nine consecutive years; 240 schoolchildren aged 8-10 years selected by systematic random sampling each year in the West Azerbaijan Province. RESULTS: Median UIC was >100 MUg/l in all years. More than 50 % of children had iodine deficiency (UIC<=99 MUg/l) in 2010 and 2011, while this rate was approximately 15-35 % in other years. Proportion with UIC below 50 MUg/l was <20 % in all years except 2010 and 2011. Excessive UIC (>=300 MUg/l) rate was between 5.4 and 27.5 %. TGR decreased from 44 % in 1996 to 7.6 % and 0.4 % in 2001 and 2007, respectively. Regular surveys from 2002 to 2015 showed that 98 % or more of households consumed iodized salt. Iodine level >=20 ppm was observed in 87.5, 83 and 73 % of salt at production, distribution and household level, respectively (data from national study in 2007). The last national study in 2014 showed that median iodine level in household salt was 27 ppm. CONCLUSIONS: Our focused data suggest that the universal salt iodization programme is improving the iodine status of schoolchildren in the West Azerbaijan Province of Iran. Reduction of TGR to less than 5 % in schoolchildren indicates successful elimination of IDD as a major public health problem. PMID- 29032779 TI - Combined effects of oleic, linoleic and linolenic acids on lactation performance and the milk fatty acid profile in lactating dairy cows. AB - The potential combined effects of oleic, linoleic and linolenic acids supplementation on lactation performance and the milk fatty acid (FA) profile in dairy cows have not been well investigated. Our objective was to examine the effects of supplementation with a combination of these FA as well as the effects of removing each from the combination on lactation performance and the milk FA profile in dairy cows. Eight Holstein cows (101+/-11 days in milk) received four intravenously infused treatments in a 4*4 Latin square design, and each period lasted for 12 days which consisted of 5 days of infusion and 7 days of recovery. The control treatment (CTL) contained 58.30, 58.17 and 39.96 g/day of C18 : 1 cis 9; C18 : 2 cis-9, cis-12; and C18 : 3 cis-9, cis-12, cis-15, respectively. The other three treatments were designated --C18 : 1 (20.68, 61.17 and 41.72 g/day of C18 : 1 cis-9; C18 : 2 cis-9, cis-12; and C18 : 3 cis-9, cis-12, cis-15, respectively), -C18 : 2 (61.49, 19.55 and 42.13 g/day of C18 : 1 cis-9; C18 : 2 cis-9, cis-12; and C18 : 3 cis-9, cis-12, cis-15, respectively) and -C18 : 3 (60.89, 60.16 and 1.53 g/day of C18 : 1 cis-9; C18 : 2 cis-9, cis-12; and C18 : 3 cis-9, cis-12, cis-15, respectively). Dry matter intake and lactose content were not affected by the treatments, but the milk protein content was lower in cows treated with -C18 : 2 than that in CTL-treated cows. Milk yield as well as milk fat, protein and lactose yields were higher in cows treated with -C18 : 3 than the yields in CTL-treated cows, and these yields increased linearly as the unsaturation degree of the supplemental FA decreased. Compared with the CTL treatment, the -C18 : 2 treatment decreased milk C18 : 2 cis-9 content (by 2.80%) and yield (by 22.12 g/day), and the -C18 : 3 treatment decreased milk C18 : 3 cis 9, cis-12, cis-15 content (by 2.72%) and yield (by 22.33 g/day). In contrast, removing C18 : 1 cis-9 did not affect the milk content or yield of C18 : 1 cis-9. The -C18 : 2-treated cows had a higher C18 : 1 cis-9 content and tended to have a higher C18 : 1 cis-9 yield than CTL-treated cows. The yields of C8 : 0, C14 : 0 and C16 : 0 as well as 25 kg) were also tested in each model. Results showed that dietary CP and crude fibre (CF) were, respectively, the best predictors of each EAA SID for faba bean, lupin and pea (R 2=0.42 to 0.89) and soya bean (R 2=0.32 to 0.77). For the dEAA content, the best prediction models included dietary CP and ADF for faba bean, lupin and pea and soya bean, respectively, with R 2 ranging from 0.66 to 0.98. Models developed in this study allow predicting the digestibility of EAA in these alternatives feedstuffs. PMID- 29032781 TI - Bayesian single-step genomic evaluations combining local and foreign information in Walloon Holsteins. AB - Most dairy cattle populations found in different countries around the world are small to medium sized and use many artificial insemination bulls imported from different foreign countries. The Walloon population in the southern part of Belgium is a good example for such a small-scale population. Wallonia has also a very active community of Holstein breeders requesting high level genetic evaluation services. Single-step Genomic BLUP (ssGBLUP) methods allow the simultaneous use of genomic, pedigree and phenotypic information and could reduce potential biases in the estimation of genomically enhanced breeding values (GEBV). Therefore, in the context of implementing a Walloon genomic evaluation system for Holsteins, it was considered as the best option. However, in contrast to multi-step genomic predictions, natively ssGBLUP will only use local phenotypic information and is unable to use directly important other sources of information coming from abroad, for example Multiple Across Country Evaluation (MACE) results as provided by the Interbull Center (Uppsala, Sweden). Therefore, we developed and implemented single-step Genomic Bayesian Prediction (ssGBayes), as an alternative method for the Walloon genomic evaluations. The ssGBayes method approximated the correct system of equations directly using estimated breeding values (EBV) and associated reliabilities (REL) without any explicit deregression step. In the Walloon genomic evaluation, local information refers to Walloon EBV and REL and foreign information refers to MACE EBV and associated REL. Combining simultaneously all available genotypes, pedigree, local and foreign information in an evaluation can be achieved but adding contributions to left-hand and right hand sides subtracting double-counted contributions. Correct propagation of external information avoiding double counting of contributions due to relationships and due to records can be achieved. This ssGBayes method computed more accurate predictions for all types of animals. For example, for genotyped animals with low Walloon REL (<0.25) without MACE results but sired by genotyped bulls with MACE results, the average increase of REL for the studied traits was 0.38 points of which 0.08 points could be traced to the inclusion of MACE information. For other categories of genotyped animals, the contribution by MACE information was also high. The Walloon genomic evaluation system passed for the first time the Interbull GEBV tests for several traits in July 2013. Recent experiences reported here refer to its use in April 2016 for the routine genomic evaluations of milk production, udder health and type traits. Results showed that the proposed methodology should also be of interest for other, similar, populations. PMID- 29032782 TI - Pelleting and extrusion can ameliorate negative effects of toasting of rapeseed meal on protein digestibility in growing pigs. AB - Toasting time (TT) of rapeseed meal (RSM), the diet processing (DP) method and the interaction between both on the apparent CP digestion along the gastrointestinal tract and the apparent ileal digestibility (AID) of amino acids of growing pigs were investigated. The experiment consisted of a 3*3 factorial design of TT of RSM (0, 60 and 120 min) and DP method (mash, pelleting and extrusion). In total, 81 boars with a starting BW of 20 kg were euthanized 4 h after their last feeding. The gastrointestinal tract was dissected and the small intestine divided in three sections of similar length. Samples were collected from the stomach, 1.5 m from the ends of each of the three sections of the small intestine, and the rectum. The apparent digestibility (AD) of CP for each of the small intestine sections was used to calculate the rate of CP digestion. Increasing the TT of RSM resulted in lower protein solubility, lower lysine/reactive lysine contents and higher protein denaturation, indicative of the occurrence of protein aggregation and Maillard reactions. There were significant effects (P?0.01) of TT on the AD of CP in the different sections of the gastrointestinal tract. The rate of CP digestion of the 0 min toasted RSM diets was 23% and 35% higher than that of the 60 and 120 min toasted RSM diets, respectively. There was a significant interaction (P=0.04) between TT and DP for the AID of CP. Although pelleting of the 0 and 60 min toasted RSM diets did not change the AID of CP with respect to the mash diets, pelleting of the 120 min toasted RSM diet increased the AID of CP by 9.3% units. Extrusion increased the AID of CP of the 0 and 60 min toasted RSM diets by 3.4% and 4.3% units with respect to the mash diets, whereas extrusion of the 120 min toasted RSM diet increased the AID of CP by 6.9% units. Similar positive effects of pelleting and extrusion were obtained for the AID of lysine and reactive lysine, especially in the diets with higher TT. In conclusion, processing (pelleting and extrusion) of RSM containing diets can ameliorate the negative effects of RSM toasting on protein and amino acid digestibility; these effects were larger for the RSM toasted for longer times. PMID- 29032783 TI - Targeted metabolomics: new insights into pathobiology of retained placenta in dairy cows and potential risk biomarkers. AB - A targeted quantitative metabolomics approach was used to study temporal changes of serum metabolites in cows that normally released their fetal membranes and those that retained the placenta. We identified and measured serum concentrations of 128 metabolites including amino acids, acylcarnitines, biogenic amines, glycerophospholipids, sphingolipids and hexose at -8 and -4 weeks before parturition, during the week of retained placenta (RP) diagnosis, and at +4 and +8 weeks after parturition. In addition, we aimed at identifying metabolite signatures of pre-RP in the serum that might be used as predictive biomarkers for risk of developing RP in dairy cows. Results revealed major alterations in the metabolite fingerprints of pre-RP cows starting as early as -8 weeks before parturition and continuing as far as +8 weeks after calving. Biomarker candidates found in this study are mainly biomarkers of inflammation which might not be specific to RP. Therefore, the relevance of serum Lys, Orn, acetylornithine, lysophophatidylcholine LysoPC a C28:0, Asp, Leu and Ile as potential serum biomarkers for prediction of risk of RP in dairy cows will have to be tested in the future. In addition, lower concentrations of LysoPCs, Trp, and higher kynurenine in the serum during prepartum and the week of occurrence of RP suggest involvement of inflammation in the pathobiology of RP. PMID- 29032784 TI - Spent culture medium analysis from individually cultured bovine embryos demonstrates metabolomic differences. AB - Spent culture medium can provide valuable information regarding the physiological state of a bovine preimplantation embryos through non-invasive analysis of the sum/depleted metabolite constituents. Metabolomics has become of great interest as an adjunct technique to morphological and cleavage-rate assessment, but more importantly, in improving our understanding of metabolism. In this study, in vitro produced bovine embryos developing at different rates were evaluated using proton nuclear magnetic resonance (1H NMR). Spent culture medium from individually cultured embryos (2-cell to blastocyst stage) were divided into two groups based on their cleavage rate fast growing (FG) and slow growing (SG; developmentally delayed by 12-24 h), then analyzed by a 600 MHz NMR spectrometer. Sixteen metabolites were detected and investigated for sum/depletion throughout development. Data indicate distinct differences between the 4-cell SG and FG embryos for pyruvate (P < 0.05, n = 9) and at the 16-cell stage for acetate, tryptophan, leucine/isoleucine, valine and histidine. Overall sum/depletion levels of metabolites demonstrated that embryos produced glutamate, but consumed histidine, tyrosine, glycine, methionine, tryptophan, phenylalanine, lysine, arginine, acetate, threonine, alanine, pyruvate, valine, isoleucine/leucine, and lactate with an overall trend of higher consumption of these metabolites by FG groups. Principal component analysis revealed distinct clustering of the plain medium, SG, and FG group, signifying the uniqueness of the metabolomic signatures of each of these groups. This study is the first of its kind to characterize the metabolomic profiles of SG and FG bovine embryos produced in vitro using 1H NMR. Elucidating differences between embryos of varying developmental rates could contribute to a better understanding of embryonic health and physiology. PMID- 29032785 TI - Two glutathione transferase isoforms isolated from juvenile cysts of Taenia crassiceps: identification, purification and characterization. AB - We identified and characterized the first two glutathione transferases (GSTs) isolated from juvenile cysts of Taenia crassiceps (EC 2.5.1.18). The two glutathione transferases (TcGST1 and TcGST2) were purified in a single-step protocol using glutathione (GSH)-sepharose chromatography in combination with a GSH gradient. The specific activities of TcGST1 and TcGST2 were 26 U mg-1 and 19 U mg-1, respectively, both at 25 degrees C and pH 6.5 with 1-chloro-2,4 dinitrobenzene (CDNB) and GSH as substrates. The Km(CDNB) and Kcat(CDNB) values for TcGST1 and TcGST2 (0.86 MUm and 62 s-1; 1.03 MUm and 1.97 s-1, respectively) and Km(GSH) and Kcat(GSH) values for TcGST1 and TcGST2 (0.55 MUm and 11.61 s-1; 0.3 MUm and 32.3 s-1, respectively) were similar to those reported for mammalian and helminth GSTs. Mass spectrometry analysis showed that eight peptides from each of the two parasite transferases were a match for gi|29825896 glutathione transferase (Taenia solium), confirming that both enzymes are GSTs. The relative molecular masses were 54,000 +/- 0.9 for the native enzymes and 27,500 +/- 0.5 for the enzyme subunits. Thus, TcGST1 and TcGST2 are dimeric proteins. Optimal TcGST1 and TcGST2 activities were observed at pH 8.5 in the range of 20-55 degrees C and pH 7.5 at 35-40 degrees C, respectively. TcGST1 and TcGST2 were inhibited by cibacron blue (CB), bromosulphophthalein (BST), rose bengal (RB), indomethacin and haematin (Hm) with 50% inhibitory concentrations (IC50) in the MUm range. TcGST1 was inhibited in a non-competitive manner by all tested inhibitors with the exception of indomethacin, which was uncompetitive. The discovery of these new GSTs facilitates the potential use of T. crassiceps as a model to investigate multifunctional GSTs. PMID- 29032786 TI - CONTRIBUTION OF STAKEHOLDER ENGAGEMENT TO THE IMPACT OF A HEALTH TECHNOLOGY ASSESSMENT: AN IRISH CASE STUDY. AB - OBJECTIVES: The aim of this study was to illustrate the contribution of stakeholder engagement to the impact of health technology assessment (HTA) using an Irish HTA of a national public access defibrillation (PAD) program. BACKGROUND: In response to draft legislation that proposed a PAD program, the Minister for Health requested that Health Information and Quality Authority undertake an HTA to inform the design and implementation of a national PAD program and the necessary underpinning legislation. The draft legislation outlined a program requiring widespread installation and maintenance of automatic external defibrillators in specified premises. METHODS: Stakeholder engagement to optimize the impact of the HTA included one-to-one interviews with politicians, engagement with an Expert Advisory Group, public and targeted consultation, and positive media management. RESULTS: The HTA quantified the clinical benefits of the proposed PAD program as modest, identified that substantial costs would fall on small/medium businesses at a time of economic recession, and that none of the programs modeled were cost-effective. The Senator who proposed the Bill actively publicized the HTA process and its findings and encouraged participation in the public consultation. Participation of key stakeholders was important for the quality and acceptability of the HTA findings and advice. Media management promoted public engagement and understanding. The Bill did not progress. CONCLUSIONS: The HTA informed the decision not to progress with legislation for a national PAD program. Engagement was tailored to ensure that key stakeholders including politicians and the public were informed of the HTA process, the findings, and the advice, thereby maximizing acceptance. Appropriate stakeholder engagement optimizes the impact of HTA. PMID- 29032787 TI - Ultra-processed foods, protein leverage and energy intake in the USA. AB - OBJECTIVE: Experimental studies have shown that human macronutrient regulation minimizes variation in absolute protein intake and consequently energy intake varies passively with dietary protein density ('protein leverage'). According to the 'protein leverage hypothesis' (PLH), protein leverage interacts with a reduction in dietary protein density to drive energy overconsumption and obesity. Worldwide increase in consumption of ultra-processed foods (UPF) has been hypothesized to be an important determinant of dietary protein dilution, and consequently an ecological driving force of energy overconsumption and the obesity pandemic. The present study examined the relationships between dietary contribution of UPF, dietary proportional protein content and the absolute intakes of protein and energy. DESIGN: National representative cross-sectional study. SETTING: National Health and Nutrition Examination Survey 2009-2010. SUBJECTS: Participants (n 9042) aged >=2 years with at least one day of 24 h dietary recall data. RESULTS: We found a strong inverse relationship between consumption of UPF and dietary protein density, with mean protein content dropping from 18.2 to 13.3 % between the lowest and highest quintiles of dietary contribution of UPF. Consistent with the PLH, increase in the dietary contribution of UPF (previously shown to be inversely associated with protein density) was also associated with a rise in total energy intake, while absolute protein intake remained relatively constant. CONCLUSIONS: The protein-diluting effect of UPF might be one mechanism accounting for their association with excess energy intake. Reducing UPF contribution in the US diet may be an effective way to increase its dietary protein concentration and prevent excessive energy intake. PMID- 29032788 TI - Using the Bergman-Paris Question to screen seniors in the emergency department. AB - OBJECTIVES: In the fast pace of the Emergency Department (ED), clinicians are in need of tailored screening tools to detect seniors who are at risk of adverse outcomes. We aimed to explore the usefulness of the Bergman-Paris Question (BPQ) to expose potential undetected geriatric syndromes in community-living seniors presenting to the ED. METHODS: This is a planned sub-study of the INDEED multicentre prospective cohort study, including independent or semi-independent seniors (>=65 years old) admitted to hospital after an ED stay >=8 hours and who were not delirious. Patients were assessed using validated screening tests for 3 geriatric syndromes: cognitive and functional impairment, and frailty. The BPQ was asked upon availability of a relative at enrolment. BPQ's sensitivity and specificity analyses were used to ascertain outcomes. RESULTS: A response to the BPQ was available for 171 patients (47% of the main study's cohort). Of this number, 75.4% were positive (suggesting impairment), and 24.6% were negative. To detect one of the three geriatric syndromes, the BPQ had a sensitivity of 85.4% (95% CI [76.3, 92.0]) and a specificity of 35.4% (95% CI [25.1, 46.7]). Similar results were obtained for each separate outcome. Odds ratio demonstrated a higher risk of presence of geriatric syndromes. CONCLUSION: The Bergman-Paris Question could be an ED screening tool for possible geriatric syndrome. A positive BPQ should prompt the need of further investigations and a negative BPQ possibly warrants no further action. More research is needed to validate the usefulness of the BPQ for day-to-day geriatric screening by ED professionals or geriatricians. PMID- 29032791 TI - Deconstructing the 4-h rule for access to emergency care and putting patients first. AB - Evidence suggests improved outcomes for patients requiring emergency admission to hospital are associated with improved emergency department (ED) efficiency and lower transit times. Factors preventing timely transfers of emergency patients to in-patient beds across the ED-in-patient interface are major causes for ED crowding, for which several remedial strategies are possible, including parallel processing of probable admissions, direct-to-ward admissions and single-point medical registrars for receiving and processing all referrals directed at specific speciality units. Dynamic measures of ED overcrowding that focus on boarding time are more indicative of EDs with exit block involving the ED-in patient interface than static proxy measures such as hospital bed occupancy and numbers of ED presentations. The ideal 4-h compliance rate for all ED presentations is around 80%, based on a large retrospective study of more than 18million presentations to EDs of 59 Australian hospitals over 4 years, which demonstrated a highly significant linear reduction in risk-adjusted in-patient mortality for admitted patients as the compliance rate for all patients rose to 83%, but was not confirmed beyond this rate. Closely monitoring patient outcomes for emergency admissions in addition to compliance with time-based access targets is strongly recommended in ensuring reforms aimed at decongesting EDs do not compromise the quality and safety of patient care. PMID- 29032789 TI - Symptom Dimensions of Depression and Apathy and Their Relationship With Cognition in Parkinson's Disease. AB - OBJECTIVES: Both depression and apathy, alone and in combination, have been shown to negatively affect cognition in patients with Parkinson's disease (PD). However, the influence of specific symptom dimensions of depression and apathy on cognition is not well understood. The current study investigated the relationship between symptom dimensions of depression and apathy, based on factors identified in Kirsch-Darrow et al. (2011), and memory and executive function in PD. METHODS: A sample of 138 non-demented individuals with PD (mean age=64.51+/-7.43 years) underwent neuropsychological testing and completed the Beck Depression Inventory, 2nd Edition, and Apathy Scale. Separate hierarchical regression models examined the relationship between symptom dimensions of depression and apathy ("pure" depressive symptoms, "pure" apathy, loss of interest/pleasure [anhedonia], and somatic symptoms) and three cognitive domain composites: immediate verbal memory, delayed verbal memory, and executive function. RESULTS: After adjusting for general cognitive status and the influence of the other symptom dimensions, "pure" depressive symptoms were negatively associated with the delayed verbal memory composite (p<.034) and somatic symptoms were positively associated with the executive function composite (p<.026). No symptom dimensions were significantly related to the immediate verbal memory composite. CONCLUSIONS: Findings suggest that specific mood symptoms are associated with delayed verbal memory and executive function performance in non-demented patients with PD. Further research is needed to better understand possible mechanisms through which specific symptom dimensions of depression and apathy are associated with cognition in PD. (JINS, 2018, 24, 269-282). PMID- 29032792 TI - Centralisation of oesophagectomy in Australia: is only caseload critical? AB - Objective High caseload is considered one of the most important factors for good outcomes after high-risk surgeries such as oesophagectomy. However, many Australian centres perform low volumes of oesophagectomies due to demographics. The aim of the present study was to audit outcome after oesophagectomy in an Australian low-volume centre over a period of 13 years and to discuss potential contributors to outcome other than just case volume.Methods Perioperative and long-term outcomes of all oesophagectomies over a 13-year period in a low-volume Australian tertiary care centre were analysed retrospectively. Data were compared in subgroups of patients in two separate time periods: 2000-05 (n=23) and 2006-12 (n=24).Results There were two perioperative deaths over the entire 13-year period with no postoperative mortality in the last decade. The complication and long term survival rates for each of the two separate time periods were similar to those from high-volume centres, more so in the second half of the study period.Conclusions The data suggest that under specific conditions, oesophagectomies can be safely performed even in smaller- or low-volume centres in Australia. The policy of centralisation for these procedures in Australia needs to be carefully tailored to the needs of the population, clinical outcomes, cost-effectiveness and optimal utilisation of existing facilities rather than on caseload alone.What is known about the topic? High caseload is considered one of the most important factors for good outcomes after oesophagectomy and a driving force behind centralisation of this procedure. However, other factors may also affect outcome - such as availability of experienced surgeons, specialist nurses, interventional radiology, gastroenterology, etc.What does this paper add? With the availability of appropriate levels of expertise, infrastructure and specialist nursing staff as is the case in most Australian tertiary centres, good perioperative outcomes can be obtained despite low volumes. Case load only should not be used as a surrogate marker of quality.What are the implications for practitioners? The policy of centralisation for oesophagectomy in Australia needs to be carefully thought out on the basis of population demographics, outcomes and cost-effectiveness, with the appropriate use of existing facilities, rather than on a caseload basis alone. PMID- 29032790 TI - Formative qualitative research to develop community-based interventions addressing low birth weight in the plains of Nepal. AB - OBJECTIVE: To explore the factors affecting intra-household food allocation practices to inform the development of interventions to prevent low birth weight in rural plains of Nepal. DESIGN: Qualitative methodology using purposive sampling to explore the barriers and facilitating factors to improved maternal nutrition. SETTING: Rural Dhanusha District, Nepal. SUBJECTS: We purposively sampled twenty-five young daughters-in-law from marginalised groups living in extended families and conducted semi-structured interviews with them. We also conducted one focus group discussion with men and one with female community health volunteers who were mothers-in-law. RESULTS: Gender and age hierarchies were important in household decision making. The mother-in-law was responsible for ensuring that a meal was provided to productive household members. The youngest daughter-in-law usually cooked last and ate less than other family members, and showed respect for other family members by cooking only when permitted and deferring to others' choice of food. There were limited opportunities for these women to snack between main meals. Daughters-in-law' movement outside the household was restricted and therefore family members perceived that their nutritional need was less. Poverty affected food choice and families considered cost before nutritional value. CONCLUSIONS: It is important to work with the whole household, particularly mothers-in-law, to improve maternal nutrition. We present five barriers to behaviour change: poverty; lack of knowledge about cheap nutritional food, the value of snacking, and cheap nutritional food that does not require cooking; sharing food; lack of self confidence; and deference to household guardians. We discuss how we have targeted our interventions to develop knowledge, discuss strategies to overcome barriers, engage mothers-in-law, and build the confidence and social support networks of pregnant women. PMID- 29032800 TI - Haemodynamic effects of incomplete stent apposition in curved coronary arteries. AB - Incomplete stent apposition (ISA, also known as malapposition) is a complication that affects day-to-day coronary stenting procedures. ISA is more prominent in complex arterial geometries, such as curvature, asa result of the limited conformability of coronary stents. These malapposed struts disturb the otherwise near-wall laminar blood flow and form a micro-recirculation environment. The micro-recirculation environment is often associated with low wall shear stress (WSS) and upsets the delicate balance of vascular biology, providing possible nidus for thrombosis and restenosis. In this study, a three-dimensional (3D) stent model was virtually deployed into an idealised curved coronary artery. Computational fluid dynamics (CFD) simulations were carried out to systematically analyse the haemodynamic effects of increasing maximum ISA distances, ranging from 180 (moderate), 400 (intermediate) to 910MUm (severe) in an artery with decreasing radius of curvature (ROC). Micro-recirculations around both proximal and distal malapposed struts become more pronounced as compared to fully-apposed struts. The accompanying areas of low temporally-averaged WSS (AL-TAWSS) can increase twofold compared to the fully-apposed condition. Furthermore, substantial regions (~5.2% and 9.0%) of AL-TAWSS are detached from the distal end of the malapposed struts in both moderate and intermediate cases respectively. Malapposed stents also induce more variation of TAWSS at the inner bend of the artery. At the stent surface, maximum WSS increases threefold from the fully apposed case to intermediate ISA. High WSS on the strut surface is known to activate platelets which when exposed to the micro-recirculation environment may lead to their deposition and thrombosis. PMID- 29032801 TI - The role of radiology in anatomy teaching in UK medical schools: a national survey. AB - AIMS: To investigate the current use of radiology in anatomy teaching across the UK, and to determine the level of interest expressed in expanding its role in medical education. MATERIALS AND METHODS: A 22-question electronic survey was distributed to the organisers of anatomy teaching at 35 UK medical schools. The questionnaire explored the use of radiology in their anatomy course, the different kinds of available resources, and attitudes towards integrating radiology into anatomy teaching. RESULTS: Responses were received from 29/35 (83%) medical schools. Among the respondents, radiological anatomy featured in all but one of their curricula. Of those schools using radiology to aid anatomy teaching, 20/28 expressed a wish for more radiology in the curriculum. Timetabling constraints constituted one of the main difficulties in further implementation. In addition, 22/28 medical schools had already fostered collaborative links with local radiology departments, with 18 of these expressing a wish for further cooperation. Of the remaining six schools without current collaboration, four would like to establish connections. CONCLUSION: Compared with previous studies, this national survey shows a definite increase in radiological anatomy in medical school curricula with a stronger presence of radiologists in anatomy teaching. Despite this, most anatomy departments still express a desire to increase the radiological component in their courses. PMID- 29032802 TI - Radioembolisation of hepatocellular carcinoma: a primer. AB - Transarterial radioembolisation (TARE) has gained increasing acceptance as an additional/alternative locoregional treatment option for hepatocellular carcinoma, and colorectal hepatic metastases that present beyond potentially curative options. This is a catheter-based transarterial selective internal brachytherapy that involves injection of radioactive microspheres (usually Y-90) that are delivered selectively to the liver tumours. Owing to the combined radioactive and microembolic effect, the findings at follow-up imaging are significantly different from that seen with other transarterial treatment options. Considering increasing confidence among clinicians, refinement in techniques and increasing number of ongoing trials, TARE is expected to gain further acceptance and become an important tool in the armamentarium for the treatment of liver malignancies. So it is imperative that all radiologists involved in the management of liver malignancies are well versed with TARE to facilitate appropriate discussion at multidisciplinary meetings to direct further management. In this article, we provide a comprehensive review on various aspects of radioembolisation with Y-90 for hepatocellular carcinoma including the patient selection, treatment planning, radiation dosimetry and treatment, side effects, follow-up imaging and future direction. PMID- 29032803 TI - [Prostate cancer and DNA repair genes]. PMID- 29032804 TI - [Clinical relevance of ESR1 circulating mutations detection in hormone receptor positive metastatic breast cancer]. AB - If hormone therapy is a key treatment for hormone receptor positive advanced breast cancers, secondary resistance occurs as a rule. Recently, acquired alterations of the ESR1 gene have been identified as a mechanism of resistance on aromatase inhibitor (AI) treatment. The selective pressure by AI exposure during the metastatic setting triggers the emergence of ESR1 activating mutations. In that context, the "liquid biopsy" concept has been used to detect this molecular resistance before progression. Thus, the ESR1 circulating mutation detection will soon be used in daily practice to help monitoring patients on AI treatment and provide an early change for specific therapies that still have to be determined in prospective clinical trials. This review will present the acquired ESR1 mutations, as well as the methods used for their detection in blood and the potential clinical impact of this approach for hormone receptor positive breast cancer management. PMID- 29032805 TI - Influence of socio-economic status and television watching on childhood obesity in Kolkata. AB - Obesity is fast becoming an epidemic among the urban children and it has its adverse effect on the status of health even during adulthood. In this paper an attempt is made to assess the percentage of obesity among 6-10 year children and assess the effect of different socio-economic variables and TV watching on childhood obesity. We restricted our study to primary school-going children who attended classes I-IV. The sample consisted of 5216 children from 20 different Bengali medium and English medium schools in Kolkata. Categorical logistic regression of obesity on the socio-economic factors namely type of medium school, religion, parent's education, duration of television watching etc., has been carried out. The categorical logistic regression shows the significant effect of some of the socio-economic or demographic variables including the duration of television watching on obesity. We have seen a positive association between obesity and TV watching and also between obesity and consumption of fast food. This calls for making the parents aware and taking action as early as possible. PMID- 29032806 TI - Multidetector computed tomography evaluation of candidates for transcatheter aortic valve implantation. AB - In transcatheter aortic valve implantation (TAVI), a biologic valve mounted in a stent is implanted without removing the native valve. This procedure was first done in humans by Alain Cribier in 2002 and was included in clinical guidelines after the multicenter PARTNER (Placement of AoRtic TraNscathetER) randomized clinical trial, which showed that TAVI obtained better outcomes than conservative medical treatment and is an alternative to surgery in patients with high surgical risk. Candidates for TAVI must be assessed to determine whether the procedure is feasible, because TAVI is not ideal for all patients who are considered inoperable. Multidetector computed tomography plays an important role in the anatomic evaluation of candidates and in guiding the procedure in those who are finally selected. PMID- 29032807 TI - A Comparison of the Severe Cognitive Impairment Rating Scale With the Mini-Mental State Examination and Delirium Rating Scale-Revised-98 for Delirium: A Cross sectional Study. AB - BACKGROUND: Cognitive impairment including attention deficits, disorientation, memory impairment, language disturbance, and impaired visuospatial ability are core symptoms of delirium. The Severe Cognitive Impairment Rating Scale (SCIRS) was developed to assess cognition in patients with severe dementia, but may also be useful in elderly people with delirium. OBJECTIVE: We investigated the use of the SCIRS to assess cognition in elderly patients with delirium. METHODS: We recruited 147 participants, aged >=65 years, referred for psychiatric consultation at a tertiary-care university hospital. The diagnosis and severity of delirium were assessed using the Korean version of the Delirium Rating Scale Revised-98 (K-DRS-98). Cognitive function was assessed using the SCIRS and the Mini-Mental State Examination (MMSE) in the Korean version of the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) Assessment Packet (MMSE-KC). RESULTS: There was a strong correlation of SCIRS scores with K-DRS-98 cognition domain (r = -0.796), severity scores (r = -0.742), total scores (r = -0.734), and the MMSE-KC (r = 0.905). Analysis of variance incorporating the severity of delirium suggested that while the MMSE showed a floor effect, the SCIRS could discriminate between moderate and severe delirium. CONCLUSION: The SCIRS is a useful instrument to assess cognitive function in elderly patients with moderate to severe delirium. PMID- 29032808 TI - Torso geometry reconstruction and body surface electrode localization using three dimensional photography. AB - We conducted a prospective clinical study (n=14; 29% female) to assess the accuracy of a three-dimensional (3D) photography-based method of torso geometry reconstruction and body surface electrodes localization. The position of 74 body surface electrocardiographic (ECG) electrodes (diameter 5mm) was defined by two methods: 3D photography, and CT (marker diameter 2mm) or MRI (marker size 10*20mm) imaging. Bland-Altman analysis showed good agreement in X (bias -2.5 [95% limits of agreement (LoA) -19.5 to 14.3] mm), Y (bias -0.1 [95% LoA -14.1 to 13.9] mm), and Z coordinates (bias -0.8 [95% LoA -15.6 to 14.2] mm), as defined by the CT/MRI imaging, and 3D photography. The average Hausdorff distance between the two torso geometry reconstructions was 11.17+/-3.05mm. Thus, accurate torso geometry reconstruction using 3D photography is feasible. Body surface ECG electrodes coordinates as defined by the CT/MRI imaging, and 3D photography, are in good agreement. PMID- 29032809 TI - Evaluation of polycyclic aromatic hydrocarbons bioavailability on Santos Bay (Brazil) through levels of biliary metabolites. AB - This study evaluated the PAH bioavailability from Santos Bay (Brazil) in 4 species of fish, using PAH biliary metabolites. The collection was done monthly, between July and December, in three different regions of Santos Bay. The metabolites were analyzed through a high performance liquid chromatograph with fluorescence detectors. Total metabolites concentrations ranged from 65.5 to 589MUgg-1 of bile, evidencing PAH bioavailability on Santos Bay. Levels of phenanthrene and benzo[a]pyrene metabolites were in the classification range of areas moderate contaminated. Those concentrations were lower in Nebris microps and higher in Sphoeroides testudineus (p<0.05). Naphthalene metabolites concentrations did not differ significantly among fish species and were in the classification range of low contaminated areas. There were no significant spatial and temporal differences in levels among sampled areas. These results are environmentally important given the high levels of urbanization and the absence of biomonitoring data in this area. PMID- 29032810 TI - Timely therapy requires timely diagnosis; high risk therapy demands accurate diagnosis. PMID- 29032811 TI - Editorial Comment. PMID- 29032812 TI - Matrix vesicles induce calcification of recipient vascular smooth muscle cells through multiple signaling pathways. AB - In patients with chronic kidney and end-stage renal diseases, the major risk factor for progression of arterial calcification is the presence of existing (baseline) calcification. Here, we tested whether calcification of arteries is extended from calcified vascular smooth muscle cells (VSMCs) to adjacent normal cells by matrix vesicle-induced alteration of cell signaling. Matrix vesicles isolated from VSMC of rats with chronic kidney disease were co-cultured with VSMCs from normal littermates. Endocytosis of vesicles by recipient cells was confirmed by confocal microscopy. The addition of cellular matrix vesicles with characteristics of exosomes and low fetuin-A content enhanced the calcification of recipient VSMC. Further, only cellular-derived matrix vesicles induced an increase in intracellular calcium ion concentration, NOX1 (NADPH oxidase) and the anti-oxidant superoxide dismutase-2 in recipient normal VSMC. The increase in intracellular calcium ion concentration was due to release from endoplasmic reticulum and partially attributed to the activation of both NOX1 and mitogen activated protein kinase (MEK1 and Erk1/2) signaling, since inhibiting both pathways blocked the increase in intracellular calcium ion in recipient VSMC. In contrast, matrix vesicles isolated from the media had no effect on the intracellular calcium ion concentration or MEK1 signaling, and did not induce calcification. However, media matrix vesicles did increase Erk1/2, although not to the level of cellular matrix vesicles, and NOX1 expression. Blockade of NOX activity further inhibited the cellular matrix vesicle-induced accelerated calcification of recipient VSMC, suggesting a potential therapeutic role of such inhibition. Thus, addition of cellular-derived matrix vesicles from calcifying VSMC can accelerate calcification by inducing cell signaling changes and phenotypic alteration of recipient VSMC. PMID- 29032813 TI - Light-cured Tricalcium Silicate Toxicity to the Dental Pulp. AB - INTRODUCTION: Numerous studies reported dentin bridge formation after pulp capping with tricalcium silicates. By contrast, pulp capping with resins leads to pulp toxicity and inflammation. Hybrid materials made up of tricalcium silicates and resins have also been developed to be used in direct pulp capping. This work was designed to study the consequences of adding resins to tricalcium silicates by investigating TheraCal (BISCO, Lancon De Provence, France) and Biodentine (Septodont, Saint Maur des Fosses, France) interactions with the dental pulp. METHODS: Media conditioned with the biomaterials were used to analyze pulp fibroblast proliferation using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyltetrazolium bromide) test and proinflammatory cytokine interleukin 8 (IL 8) secretion using the enzyme-linked immunosorbent assay. The effects of conditioned media on dentin sialoprotein (DSP) and nestin expression by dental pulp stem cells (DPSCs) were investigated by immunofluorescence. The materials' interactions with the vital pulp were investigated using the entire tooth culture model. RESULTS: TheraCal-conditioned media significantly decreased pulp fibroblast proliferation, whereas no effect was observed with Biodentine. When DPSCs were cultured with Biodentine-conditioned media, immunofluorescence showed an increased expression of DSP and nestin. This expression was lower with TheraCal, which significantly induced proinflammatory IL-8 release both in cultured fibroblasts and entire tooth cultures. This IL-8 secretion increase was not observed with Biodentine. Entire tooth culture histology showed a higher mineralization with Biodentine, whereas significant tissue disorganization was observed with TheraCal. CONCLUSIONS: Within the limits of these preclinical results, resin-containing TheraCal cannot be recommended for direct pulp capping. PMID- 29032814 TI - Healthy Dental Pulp Oxygen Saturation Rates in Subjects with Homozygous Sickle Cell Anemia: A Cross-Sectional Study Nested in a Cohort. AB - INTRODUCTION: To compare the percentage of arterial oxygen saturation (SpO2) in healthy teeth with confirmed pulp vitality between individuals with sickle cell anemia (HbSS) and normal hemoglobin A (HbAA). METHODS: This is a cross-sectional study nested within a cohort. Samples (n = 2543) comprised teeth with intact crowns and pulp vitality confirmed by thermal sensitivity tests and no history of caries, periodontal disease, or dental trauma. A total of 728 teeth of 113 individuals with HbSS and 1815 teeth of 246 individuals with HbAA were evaluated. Data analysis was performed using the chi2 and Mann-Whitney tests and Spearman correlation analysis (alpha = 0.05). RESULTS: The study groups were comparable in terms of age, race, and sex (P > .05). Subjects with HbSS exhibited lower median SpO2 levels in the body and upper teeth, excluding canines, than subjects with HbAA (P < .05). There were no significant differences in the evaluated parameters between the 2 groups (P > .05). CONCLUSION: Compared with individuals with HbAA, those with HbSS exhibited lower SpO2 in maxillary teeth with confirmed pulp vitality, except in the canines. There was no correlation between SpO2 levels of the body and dental pulp in individuals with HbSS or HbAA. PMID- 29032815 TI - Effects of Rosiglitazone on the Outcome of Experimental Periapical Lesions in Mice. AB - INTRODUCTION: The purpose of this study was to evaluate a protocol for systemic administration of rosiglitazone in mice in order to stimulate apoptosis of osteocytes in the jaws and to evaluate the effect of osteocyte apoptosis induced by rosiglitazone in the progression of periapical lesions in mice at 7, 21, and 42 days. METHODS: C57BL/6 mice at 4-5 weeks of age were used. In phase 1, mice (n = 24) were treated with rosiglitazone (gavage, 10 mg/kg dose) or without (phosphate-buffered saline + 10% dimethyl sulfoxide) for 1, 2, or 3 weeks. We used the terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling and 4'-6-diamidino-2-phenylindole methods for quantification of apoptotic cells. In phase 2, mice (n = 30) received rosiglitazone for 2 weeks or just vehicle for 1 week (n = 30), and periapical lesions were induced for 7, 21, or 42 days. We performed the measurement of periapical lesions, tartrate resistant acid phosphatase staining, dual-energy x-ray absorptiometry for the evaluation of bone mineral density (BMD) in long bone, and gene evaluation using real time quantitative polymerase chain reaction of osteocyte markers (Sost, Hyou1, and Dmp1) and receptor activator of nuclear factor kappa-B ligand (RANKL) (Tnfsf11). RESULTS: It was observed that systemic administration of rosiglitazone for 2 weeks showed apoptosis of osteocytes in a more expressive manner. In phase 2, in the groups that received rosiglitazone, a trend toward larger periapical lesions was observed (P > .05). Rosiglitazone also induced a greater number of osteoclasts and a greater expression of Sost and Hyou1 at 21 days of lesions. Moreover, there were no statistically significant differences in RANKL and Dmp1 expression or in the BMD of femurs. CONCLUSIONS: Rosiglitazone stimulated apoptosis of osteocytes, interfering in the progression of periapical lesions in mice. PMID- 29032816 TI - Physicochemical Properties and Volumetric Change of Silicone/Bioactive Glass and Calcium Silicate-based Endodontic Sealers. AB - INTRODUCTION: This study evaluated setting time (ST), radiopacity, pH, flow, solubility, and volumetric change (VC) of a silicone, gutta-percha, and bioactive glass-based sealer, GuttaFlow Bioseal (GFB), and a calcium silicate-based sealer, TotalFill BC Sealer (TFBC), in comparison with AH Plus. METHODS: ST and flow were evaluated in accordance with the ISO 6876 Standard. pH was evaluated after different time intervals (1, 3, 7, 14, 21, and 28 days). Radiopacity was evaluated by radiographic analysis in millimeters of aluminum. Solubility was evaluated by means of mass loss (%) after 7 and 30 days of immersion in distilled water. VC was evaluated by micro-computed tomography, by using cavities 3 mm deep and 1 mm in diameter in acrylic resin, filled with the materials. The materials were evaluated after setting and after 7 and 30 days of immersion in distilled water. The data were submitted to analysis of variance and Tukey statistical tests (P < .05). RESULTS: TFBC demonstrated the highest pH and solubility. GFB had the shortest ST, and lowest radiopacity and flow values. VC was similar for the sealers in both time intervals. CONCLUSIONS: TFBC presented the highest pH and solubility, but showed similar VC to GFB and AH Plus. GFB showed proper physicochemical properties. Micro-computed tomography complements the physicochemical analysis of endodontic sealers. PMID- 29032817 TI - Comparison of Alterations in the Surface Topographies of HyFlex CM and HyFlex EDM Nickel-titanium Files after Root Canal Preparation: A Three-dimensional Optical Profilometry Study. AB - AIMS: The aims of the present study were to examine the surface topographies of intact HyFlex CM and HyFlex EDM nickel-titanium files and to compare alterations in the surface topographies of these files after root canal preparation of severely curved canals of molar teeth. METHODS: Eight HyFlex CM (25/.08) and 8 HyFlex EDM (25/.08) files were included in the present study. In total, 64 severely curved canals of molar teeth, with curvature angles ranging between 50 degrees and 70 degrees , were prepared with HyFlex CM and EDM (n = 32 in each group). Quantitative and qualitative analyses of the files' surface deformation were performed by using three-dimensional optical profilometry before and after root canal preparation. The data were analyzed with the Student t test at the 5% significant level by using SPSS 21.0 software. RESULTS: In the HyFlex EDM group, the qualitative evaluation revealed the presence of cracks and microcavities after use of the file for root canal preparation, whereas only minor surface deformation was observed in the HyFlex CM group. The average roughness, root mean square roughness, and peak to valley height values of the HyFlex EDM group were significantly higher than those of the HyFlex CM group before and after root canal preparation (P < .05). The surface roughness values were statistically significantly increased in the HyFlex CM group after root canal preparation (P < .05). In contrast, the increase in the HyFlex EDM group was not statistically significant (P > .5). CONCLUSIONS: Within the limitations of the present study, the HyFlex CM files showed significantly higher surface alterations compared with the HyFlex EDM files after the preparation of severely curved root canals. PMID- 29032818 TI - Radiographic, Histologic, and Biomechanical Evaluation of Combined Application of Platelet-rich Fibrin with Blood Clot in Regenerative Endodontics. AB - INTRODUCTION: No in vivo study has been reported on the mechanical reinforcement of a tooth after regenerative endodontic treatment (RET). The present work aimed to evaluate the concurrent use of platelet-rich fibrin (PRF) with a blood clot (BC) in RET concerning periapical healing, root development, and tooth structural reinforcement. METHODS: In our study, 24 premolars from 3 beagle dogs were assigned into control, BC, and PRF + BC groups. Periapical healing was monitored with quantitative measurements of root elongation and thickening radiographically. Tooth biomechanical integrity was assessed with the fracture resistance test. Histologic evaluation was conducted. RESULTS: There was a significant difference among the periapical radiolucency decreasing rate of the control (43.75%) and the BC (100%) and PRF + BC (100%) groups (P < .05). The increase of root length and thickness in both the BC and PRF + BC groups was significantly greater than that in the control group (P < .05). No significant difference was detected between the 2 experimental groups regarding periapical healing or root development (P > .05). Teeth in the BC (249.3 +/- 64.1 N) and PRF + BC (281.7 +/- 37.8 N) groups had significantly higher fracture resistance than those in the control group (108.5 +/- 23.3 N) (P < .05). No significant difference was revealed between the BC and PRF + BC groups (P > .05). Histologic evidence of cementumlike tissue deposition along the canal wall with scattered bonelike tissue in the canal was observed. CONCLUSIONS: Either a combination of PRF with BC or BC alone could improve periapical healing, induce root development, and reinforce tooth structure. No additional benefit of PRF to BC in RET was found. PMID- 29032819 TI - Assessment of the Second Mesiobuccal Root Canal in Maxillary First Molars: A Cone beam Computed Tomographic Study. AB - INTRODUCTION: The purpose of this study was to investigate the incidence and location of the second mesiobuccal (MB2) root canal of the maxillary first molar and the relationship between the presence of an MB2 canal and the distribution of canal orifices on the pulpal floor with the aid of cone-beam computed tomographic (CBCT) technology. METHODS: A total of 1008 maxillary first molars (548 patients) were randomly selected and analyzed through CBCT imaging. The association between the incidence of MB2 canals and potential impacting factors including sex, side, age, and the distribution of the main root canal orifices on the pulpal floor was explored. The interorifice distances (ie, the length of a line between the center point of any 2 orifices) at the pulpal floor level were measured using Mimics 10.01 software (ImageWorks, Materialise, Belgium). RESULTS: The majority of 3 rooted maxillary first molars showed 2 root canals (85.4%) in the mesiobuccal root. The incidence of MB2 canals had no statistically significant difference between the left and right sides (P > .05) but had a significant association with the patients' sex and age (P < .05). Receiver operating characteristic curve analysis showed a high diagnostic accuracy (the area under the receiver operating characteristic curve = 0.92) of using the distance ratio of the interorifice distance between the main mesiobuccal and the palatal root canal orifices to the interorifice distance between the distobuccal and the palatal root canal orifices to predict the presence of an MB2 canal. A larger distance ratio (>1.26) indicated a highly probable existence of an MB2 canal. In this study, no molar presented an MB2 canal with a distance ratio of less than 1.16, whereas all molars with a ratio greater than 1.37 presented an MB2 canal without exception. A Bland-Altman scatterplot showed great agreement between the distances of the main mesiobuccal and the distobuccal canal orifices and the second mesiobuccal and the distobuccal canal orifices. CONCLUSIONS: Understanding the incidence of MB2 canals and the distribution pattern of canal orifices on the pulpal floor may help clinicians to quickly identify and locate MB2 canals. PMID- 29032820 TI - Methodological Quality Assessment of Meta-analyses in Endodontics. AB - INTRODUCTION: The objectives of this review were to assess the methodological quality of published meta-analyses related to endodontics using the assessment of multiple systematic reviews (AMSTAR) tool and to provide a follow-up to previously published reviews. METHODS: Three electronic databases were searched for eligible studies according to the inclusion and exclusion criteria: Embase via Ovid, The Cochrane Library, and Scopus. The electronic search was amended by a hand search of 6 dental journals (International Endodontic Journal; Journal of Endodontics; Australian Endodontic Journal; Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology; Endodontics and Dental Traumatology; and Journal of Dental Research). The searches were conducted to include articles published after July 2009, and the deadline for inclusion of the meta-analyses was November 30, 2016. The AMSTAR assessment tool was used to evaluate the methodological quality of all included studies. RESULTS: A total of 36 reports of meta-analyses were included. The overall quality of the meta-analyses reports was found to be medium, with an estimated mean overall AMSTAR score of 7.25 (95% confidence interval, 6.59-7.90). The most poorly assessed areas were providing an a priori design, the assessment of the status of publication, and publication bias. CONCLUSIONS: In recent publications in the field of endodontics, the overall quality of the reported meta-analyses is medium according to AMSTAR. PMID- 29032821 TI - 16S Ribosomal RNA Gene Sequencing to Evaluate the Effects of 6 Commonly Prescribed Antibiotics. AB - INTRODUCTION: The rapid antibiotic sensitivity test (RAST) is a novel in-office culture and sensitivity system for endodontic infections. The purpose of this research was to validate the RAST system as a viable, in-office alternative to antibiotic sensitivity testing using turbidity to determine antibiotic sensitivities of endodontic infections. METHODS: Aspirates were taken from the root canals of 9 necrotic human teeth at the initiation of root canal therapy. These samples were cultured in the RAST medium, and antibiotic sensitivity to 6 antibiotics was tested. Further analysis was performed using 16S ribosomal RNA (rRNA) gene sequencing. RESULTS: Thirty-one bacterial phyla were identified as well as 2 phyla of the kingdom Archaea. Augmentin (Dr. Reddy's Laboratories Ltd, Hyderabad, India) and ampicillin performed identically at 24 hours, inhibiting turbidity in 100% of the samples. At 48 hours in anaerobic conditions, Augmentin outperformed ampicillin by 13%. Ciprofloxacin was the least efficacious antibiotic. At 48 hours, only 22% of anaerobic ciprofloxacin cultures affectively inhibited bacterial growth. CONCLUSIONS: The RAST medium is a viable in-office alternative to antibiotic susceptibility testing in an off-site laboratory. It is able to support the growth of a wide variety of microorganisms in both aerobic and anaerobic environments, and, in combination with 16S rRNA gene sequencing, it led to the identification of a new archaebacterial phylum, Crenarchaeota, as part of the endodontic infection microbiome. PMID- 29032822 TI - Evaluation of the Cytotoxicity and Biocompatibility of New Resin Epoxy-based Endodontic Sealer Containing Calcium Hydroxide. AB - INTRODUCTION: Many endodontic sealers are available, but the search for the ideal sealer continues. This study evaluated the cytotoxicity and biocompatibility of Sealer Plus, a new resin epoxy-based endodontic sealer containing calcium hydroxide. AH Plus, Endofill, and SimpliSeal endodontics sealers were used for comparison. METHODS: L929 fibroblasts were cultured, and an MTT assay was used to determine the cytotoxicity of the sealer extracts at 6, 24, 48, and 72 hours. Tubes containing materials or empty tubes for control were inserted into the subcutaneous tissues of 20 rats. After 7 and 30 days, the rats were killed, and the tubes were removed with the surrounding tissues for histologic analysis. The data were submitted to statistical tests (P < .05). RESULTS: Undiluted Sealer Plus exhibited less cytotoxicity compared with other undiluted extracts at 6 hours (P < .05), and cell viability was higher for all Sealer Plus extracts after 24 hours (P < .05). At 48 hours, the undiluted and 1/2 Sealer Plus dilution were the extracts with less cytotoxicity (P < .05). At 72 hours, cell viability was higher for the undiluted and 1/2 Sealer Plus dilution compared with the other sealers (P < .05). At 7 days, Endofill and SimpliSeal had higher inflammation compared with the control and Sealer Plus (P < .05); AH Plus had moderate inflammation (P > .05). At 30 days, control, Sealer Plus, and AH Plus had less inflammation (P < .05). The fibrous capsule was thick at 7 days and thin at 30 days, except for SimpliSeal. CONCLUSIONS: In general, Sealer Plus promoted greater cell viability and was more biocompatible compared with the other sealers. PMID- 29032823 TI - Bortezomib Facilitates Reparative Dentin Formation after Pulp Access Cavity Preparation in Mouse Molar. AB - INTRODUCTION: The aim of this study was to evaluate in vitro and ex vivo roles of bortezomib, a proteasome inhibitor that binds to the active site of the 26S proteasome, in tertiary dentin formation. METHODS: We established pulpal access cavity preparation that was treated with or without bortezomib before direct pulp capping with a calcium hydroxide-based material. We also analyzed bone morphogenetic protein (Bmp)- and Wnt-related signaling molecules using quantitative real-time polymerase chain reaction. RESULTS: In the short-term observation period, the bortezomib-treated pulp specimens showed the period altered immunolocalization patterns of nestin, CD31, and myeloperoxidase, whereas the control specimens did not. The bortezomib-treated group showed a complete dentin bridge with very few irregular tubules after 42 days. The micro-computed tomographic images showed more apparent dentin bridge structures in the treated specimens than were in the controls. Quantitative real-time polymerase chain reaction analysis showed up-regulated Bmp and Wnt. CONCLUSIONS: These findings revealed that treatment with 1 MUmol/L bortezomib induced reparative dentin formation that facilitated the maintenance of the integrity of the remaining pulpal tissue via early vascularization and regulation of Bmp and Wnt signaling. PMID- 29032824 TI - The impact on survival of two different staging strategies in apparent early stage endometrial cancer comparing sentinel lymph nodes mapping algorithm and selective lymphadenectomy: An Italian retrospective analysis of two reference centers. AB - OBJECTIVE: The role of lymphadenectomy in endometrial cancer is still uncertain. We aimed to evaluate the survival outcomes of two different strategies in apparent uterine confined disease by comparing sentinel lymph node (SLN) mapping and selective lymphadenectomy (LD). METHODS: We retrospectively reviewed women with preoperative stage I endometrial cancer underwent surgical staging with either SLN mapping, or LD in two Italian centers. RESULTS: Eight hundred and two women underwent surgical staging for preoperative stage I endometrial cancer were revised (145 Monza; 657 Rome). All patients underwent peritoneal washing, simple hysterectomy with bilateral salpingo-oophorectomy and nodal staging including SLN mapping, or LD. Overall 8229 lymph nodes were removed (1595 in Monza, 6634 in Rome). Pelvic lymphadenectomy was performed in 33.1% and 52.4% in Monza and Rome, respectively (p<0.001). Patients with positive pelvic LN were 16.7% and 7.3%, in SLN and LD groups, respectively (p=0.002). Disease-free survival (DFS) curves did not showed a statistically significant difference between centers and strategies adopted (SLN mapping, LD, SLN+LD) with a HR of 0.87 (95% CI 0.63-2.16; p=0.475). CONCLUSIONS: Survival outcomes were similar for both strategies. The SLN strategy allowed to identify a higher rate of stage IIIC1 disease even with a lower median number of lymph node removed in SLN group. Applying a SLN algorithm does not impair the prognosis of endometrial cancer patients. The clinical impact and management of low volume metastasis in high-risk patients should be further clarify. PMID- 29032825 TI - LINE-1 retrotransposon-mediated DNA transductions in endometriosis associated ovarian cancers. AB - OBJECTIVE: Endometrioid (ENOC) and clear cell ovarian carcinoma (CCOC) share a common precursor lesion, endometriosis, hence the designation endometriosis associated ovarian cancers (EAOC). Long interspersed nuclear element 1 (LINE-1 or L1), is a family of mobile genetic elements activated in many cancers capable of moving neighboring DNA through 3' transductions. Here we investigated the involvement of specific L1-mediated transductions in EAOCs. METHODS: Through whole genome sequencing, we identified active L1-mediated transductions originating within the TTC28 gene in 34% (10/29) of ENOC and 31% (11/35) of CCOC cases. We used PCR and capillary sequencing to assess the presence of specific TTC28-L1 transductions in formalin-fixed paraffin-embedded (FFPE) blocks from six different anatomical sites (five tumors and one normal control) for four ENOC and three CCOC cases, and compared the results to the presence of single nucleotide variations (SNVs)/frame shift (fs) mutations detected using multiplex PCR and next generation sequencing. RESULTS: TTC28-L1 mediated transductions were identified in at least three tumor samplings in all cases, and were present in all five tumor samplings in 5/7 (71%) cases. In these cases, KRAS, PIK3CA, CTNNB1, ARID1A, and PTEN mutations were found across all tumor sites while other selected SNV/fs mutations of unknown significance were present at varying allelic frequencies. CONCLUSION: The TTC28-L1 transductions along with classical driver mutations were near ubiquitous across the tumors, suggesting that L1 activation likely occurred early in the development of EAOCs. TTC28-L1 transductions could potentially be used to determine clonal relationships and to track ovarian cancer progression. PMID- 29032826 TI - The effect of internal roughness and bonding on the fracture resistance and structural reliability of lithium disilicate ceramic. AB - OBJECTIVE: To evaluate the effect of internal roughness and bonding on the load to failure and structural reliability (Weibull analysis) of a lithium disilicate based glass ceramic under different testing scenarios. METHODS: IPS e.max CAD blocks (Ivoclar Vivadent AG) were shaped into cylinders (N=100), crystalized according to the manufacturer's instructions, and randomly assigned into two surface conditions: (1) polished surface (600-grit SiC polish papers), and (2) a roughened surface (air-abrasion with 50MUm Al2O3). Two assemblies were investigated: a ceramic disc isolated (to isolate the effect of roughness); and a simplified tri-layer setup simulating the restoration of a posterior tooth (ceramic+cement+epoxy resin) to evaluated the influence of bonding isolated and the associated effect of both factors. Four different scenarios were tested: (1) isolated disc under static load (n=10); (2) disc bonded to an epoxy resin substrate and tested under a static load (n=10); (3) disc bonded and tested under fatigue (n=20); and (4) simulated-bonding tested statically (n=10). The data of load to failure were submitted to One-way ANOVA and Weibull analysis. RESULTS: At a non-bonded scenario (isolated disc and simulated-bonding) a polished internal surface presented a higher characteristic strength. However, when bonding was present this difference became inexistent. No difference was found in terms of structural reliability (Weibull moduli) among the groups. FEA analysis shows that with bonding the tensile stress is better distributed, while in a non-bonded scenario higher tensile stresses occur at the bonding interface. SIGNIFICANCE: A rough internal surface impacted deleteriously the mechanical properties of lithium disilicate ceramic when it was not properly bonded to the substrate. However, bonding to the substrate appeared to play a more significant role in the fracture resistance than internal roughness. PMID- 29032827 TI - [Dislocation of the crystalline lens into the anterior chamber following couching: Case report]. PMID- 29032828 TI - [A hair growing on the eye: Limbal dermoid]. PMID- 29032829 TI - [Sixth cranial nerve palsy: Case report]. PMID- 29032830 TI - [Corneal re-epithelialization after a thermal burn by an incandescent spatula]. PMID- 29032831 TI - [Extrascleral extension of choroidal melanoma through a sclerotomy site]. PMID- 29032832 TI - [Giant shield ulcer]. PMID- 29032833 TI - [Orbital rhabdomyosarcoma associated with a varicella eruption]. PMID- 29032834 TI - Recurrent vitreous hemorrhage secondary to capsular tension ring chafing syndrome: A case report. PMID- 29032836 TI - The impact of interferon-regulatory factors to macrophage differentiation and polarization into M1 and M2. AB - The mononuclear phagocytes control the body homeostasis through the involvement in resolving tissue injury and further wound healing. Indeed, local tissue microenvironmental changes can significantly influence the functional behavior of monocytes and macrophages. Such microenvironmental changes for example occur in an atherosclerotic plaque during all progression stages. In response to exogenous stimuli, macrophages show a great phenotypic plasticity and heterogeneity. Exposure of monocytes to inflammatory or anti-inflammatory conditions also induces predominant differentiation to proinflammatory (M1) or anti-inflammatory (M2) macrophage subsets and phenotype switch between macrophage subsets. The phenotype transition is accompanied with great changes in the macrophage transcriptome and regulatory networks. Interferon-regulatory factors (IRFs) play a key role in hematopoietic development of monocytes, their differentiation to macrophages, and regulating macrophage maturation, phenotypic polarization, phenotypic switch, and function. Of 9 IRFs, at least 3 (IRF-1, IRF-5, and IRF-8) are involved in the commitment of proinflammatory M1 whereas IRF-3 and IRF-4 control M2 polarization. The role of IRF-2 is context-dependent. The IRF impact on macrophage phenotype plasticity and heterogeneity is complex and involves activating and repressive function in triggering transcription of target genes. PMID- 29032835 TI - Spatial Intensity Distribution Analysis: Studies of G Protein-Coupled Receptor Oligomerisation. AB - Spatial intensity distribution analysis (SpIDA) is a recently developed approach for determining quaternary structure information on fluorophore-labelled proteins of interest in situ. It can be applied to live or fixed cells and native tissue. Using confocal images, SpIDA generates fluorescence intensity histograms that are analysed by super-Poissonian distribution functions to obtain density and quantal brightness values of the fluorophore-labelled protein of interest. This allows both expression level and oligomerisation state of the protein to be determined. We describe the application of SpIDA to investigate the oligomeric state of G protein-coupled receptors (GPCRs) at steady state and following cellular challenge, and consider how SpIDA may be used to explore GPCR quaternary organisation in pathophysiology and to stratify medicines. PMID- 29032837 TI - Accelerated reactivity of blood granulocytes in patients with atopic bronchial asthma out of exacerbation. AB - Reactive oxygen species (ROS) are important in bronchial asthma (BA) pathogenesis owing to accumulation of activated granulocytes in the lungs. But the ROS producing activity of the cells is insufficiently understood in the blood of BA patients. This study analyzes the kinetics of phagocyte respiratory burst in the blood to improve the methods of BA patients monitoring. Patients with atopic BA out of exacerbation (n=60) and healthy controls (n=43) were recruited. The time course of respiratory response to opsonized zymosan (OZ) was recorded in the whole blood using luminol-dependent chemiluminescence (CL), and its activation kinetics (lag-time, rate, amplitude, ROS production) was calculated. The discriminative power of ROS generation kinetics was defined by Receiver Operating Characteristic (ROC) curve analysis. Standard physiological respiratory parameters of patients did not differ from the controls. More rapid response to OZ was recorded in BA patient samples versus the controls. The primed state of phagocytes in the blood of BA patients was corroborated by significant weakening formyl peptide priming effect. The adhesion of granulocytes to cultured human endothelial cells was two-fold higher in BA patients versus controls. ROC curve analysis exhibited good discriminative effectiveness of the CL kinetics to compare BA individuals with the controls. The highest power (86% sensitivity and 90% specificity) was achieved at a linear combination of the parameters. We assume that the assessment of phagocyte reactivity based on the analysis of the response kinetic profile is a good test for monitoring of the state in BA patients. PMID- 29032838 TI - Next generation of microbiological risk assessment: Potential of omics data for exposure assessment. AB - In food safety and public health risk evaluations, microbiological exposure assessment plays a central role as it provides an estimation of both the likelihood and the level of the microbial hazard in a specified consumer portion of food and takes microbial behaviour into account. While until now mostly phenotypic data have been used in exposure assessment, mechanistic cellular information, obtained using omics techniques, will enable the fine tuning of exposure assessments to move towards the next generation of microbiological risk assessment. In particular, metagenomics can help in characterizing the food and factory environment microbiota (endogenous microbiota and potentially pathogens) and the changes over time under the environmental conditions associated with processing, preservation and storage. The difficulty lies in moving up to a quantitative exposure assessment, because the development of models that enable the prediction of dynamics of pathogens in a complex food ecosystem is still in its infancy in the food safety domain. In addition, collecting and storing the environmental data (metadata) required to inform the models has not yet been organised at a large scale. In contrast, progress in biomarker identification and characterization has already opened the possibility of making qualitative or even quantitative connection between process and formulation conditions and microbial responses at the strain level. In term of modelling approaches, without changing radically the usual model structure, changes in model inputs are expected: instead of (or as well as) building models upon phenotypic characteristics such as for example minimal temperature where growth is expected, exposure assessment models could use biomarker response intensity as inputs. These new generations of strain-level models will bring an added value in predicting the variability in pathogen behaviour. Altogether, these insights based upon omics techniques will increase our (quantitative) knowledge on pathogenic strains and consequently will reduce our uncertainty; the exposure assessment of a specific combination of pathogen and food will be then more accurate. This progress will benefit the whole community of safety assessors and research scientists from academia, regulatory agencies and industry. PMID- 29032839 TI - Alternative terminology for the confusing term "palliative nutrition". PMID- 29032840 TI - Soybean: A potential economic dietary supplement for patients sustaining Traumatic Brain Injury. PMID- 29032841 TI - Circulating fatty acids in relation to alcohol consumption: Cross-sectional results from a cohort of 60-year-old men and women. AB - BACKGROUND & AIMS: Alcohol consumption is considered to affect circulating fatty acids (FAs) but knowledge about specific associations is limited. We aimed to assess the relation between alcohol consumption and serum FAs in 60-year-old Swedish men and women. METHODS: In a random sample of 1917 men and 2058 women residing in Stockholm county, cross-sectional associations between different categories of alcohol consumption and FAs were assessed using linear regression; beta1 coefficients with 95% confidence interval (CI) were calculated. Self reported alcohol consumption was categorized as none, low (<=9.9 g/day) (reference), moderate (10-29.9 g/day) and high (>=30 g/day). Moderate alcohol consumption was further subdivided into consumption of beer, wine, liquor and their combinations. Thirteen serum cholesterol ester FAs were measured by gas chromatography and individual FAs were expressed as percentage of total FAs. RESULTS: Increasing alcohol consumption was associated to linear increase of saturated myristic acid, monounsaturated FAs and n-6 polyunsaturated (PUFA) arachidonic acid, whereas linear decrease was noted for saturated pentadecanoic acid and for n-6 PUFA linoleic acid. With non-linear associations, increasing alcohol consumption also associated to decreased saturated stearic acid, n-6 PUFA dihomo-gamma-linolenic acid, and n-3 PUFA docosahexaenoic acid and increased saturated palmitic acid, n-6 PUFA gamma-linolenic acid and n-3 PUFA eicosapentaenoic acid. Among types of beverages, wine consumption was associated with n-6 PUFA arachidonic acid (beta1 0.59; 95% CI: 0.30;0.88) and the n-3 PUFAs eicosapentaenoic acid (beta1 0.54; 95% CI: 0.30;0.78), and docosahexaenoic acid (beta1 0.06; 95% CI: 0.00;0.12). CONCLUSIONS: These findings may give important basis for further investigations to better understand biological mechanisms behind the dose-dependent associations between alcohol consumption and health outcomes observed in many previous studies. PMID- 29032843 TI - The 'Evo-Demo' Implications of Condition-Dependent Mortality. AB - Animals in the wild die from a variety of different mortality sources, including predation, disease, and starvation. Different mortality sources selectively remove individuals with different body condition in different ways, and this variation in the condition dependence of mortality has evolutionary and demographic implications. Subsequent population dynamics are influenced by the strength of condition-dependent mortality during specific periods, with population growth impacted in different ways in short- versus long-lived species. The evolution of lifespan is strongly influenced by condition-dependent mortality, with strikingly different outcomes expected in senescence rates when the relationship between condition and mortality is altered. A coupling of field and laboratory studies is now required to further reveal the evolutionary implications of condition-dependent mortality. PMID- 29032844 TI - [Family adherence in serious mental disorder]. AB - OBJECTIVE: Identify attitudes and behaviors that evidence and characterize family adherence to treatment in patients with severe mental disorder. DESIGN: Qualitative descriptive, from an interpretative social approach. LOCATION: Chia, Colombia, with professionals in the psychiatric and geriatric settings. PARTICIPANTS: Twelve professionals in psychiatry, nursing and psychology, with experience in care of patients with serious mental disorder and their families. METHOD: Intentional sampling. Twelve semi-structured interviews were carried out. The analysis strategy was made from the procedures of constant comparison and open coding of the grounded theory. As validation strategies, triangulation was done between researchers and methods, as interviews and results survey. RESULTS: Two categories of family adherence were defined: family and treatment (treatment cooperation, knowledge about the disease and attention to the disease evolution), and family attitudes towards the patient (patient's care, patient's promotion of autonomy, and affective attachment with the patient). A third category showed aspects that diminished family adherence, such as lack or distortion of information regarding mental disorder, or family and patient endurance attitudes. CONCLUSIONS: Participants agree about the relevance of the construct named "family adherence", which describes the behaviors and attitudes of the family regarding the treatment of patients with severe mental disorder. Family adherence can be seen as active participation behavior, but also as a process of strengthening relationships, which can reduce the burden and suffering on family members, caregivers and patients. PMID- 29032842 TI - Making Dopamine Connections in Adolescence. AB - A dramatic maturational process ongoing in adolescence is prefrontal cortex development, including its dopamine innervation. Dopamine axons grow from the striatum to the prefrontal cortex, the only known case of long-distance axon growth during adolescence. This is coordinated by the Netrin-1 guidance cue receptor DCC (deleted in colorectal cancer), which in turn controls the intrinsic development of the prefrontal cortex itself. Stimulant drugs in adolescence alter DCC in dopamine neurons and, in turn prefrontal cortex maturation, impacting cognitive abilities. Variations in DCC expression are linked to psychiatric conditions of prefrontal cortex dysfunction, and microRNA regulation of DCC may be key to determining adolescent vulnerability or resilience. Since early interventions are proving to effectively ameliorate disease outcome, the Netrin-1 system is a promising therapeutic target. PMID- 29032845 TI - [Frequent attendance in a Primary Health Care District]. AB - OBJECTIVE: To describe the distribution of frequent attenders (FA) through the different primary care practices in Cordoba-Guadalquivir Health District (Cordoba, Spain). METHODS: An ecological study was performed, including data from 2011 to 2015. Defining FA as those subjects who made12 or more appointments per year; independently analysed for nursing, general practice and paediatrics. Prevalence of frequent attendance and FA/professional ratio were used as dependent variables. Demographic characteristics from district population, number of health professionals and use of general facilities were also examinated. Aiming to understand FA distribution, primary health settings were classified according to facility size and environmental location (urban, suburban and rural). RESULTS: The mean prevalence for FA was 10.86% (0.5 SE) for nursing; general practice 21.70% (0.7 SE) and for paediatrics 16.96% (0.7 SE). FA/professional ratios for the different professional categories were: 101.07 (5.0 SE) for nursing, 239.74 (9.0 SE) for general practice and 159.54 (9.8 SE) for paediatrics. CONCLUSIONS: A major part of primary health care users make a high number of consultations. From this group, women overuse nursing and general practitioner services more compared to men. A higher prevalence of FAs was observed in smaller settings, in rural areas. Although taking the FAs:professional ratio as the bar, medium-size practices are more highly overused. PMID- 29032846 TI - Re: Sophia C. Kamran, Thomas Seisen, Sarah C. Markt, et al. Contemporary Treatment Patterns and Outcomes for Clinical Stage IS Testicular Cancer. Eur Urol 2018;73:262-70. PMID- 29032847 TI - Management of a Renal Mass in a Solitary Kidney: To Freeze or To Cut? PMID- 29032848 TI - [Ehlers-Danlos syndromes]. AB - Ehlers-Danlos syndromes (EDS) are a heterogeneous group of inheritable connective tissue disorders characterized by skin hyperextensibility, joint hypermobility and cutaneous fragility with delayed wound healing. Over and above these common features, they differ in the presence or absence of various organ and tissue abnormalities, and differences in genetic causal mechanisms and degree of severity. They are complex and multisystem diseases, with the majority being highly disabling because of major joint problems and neurosensory deficiencies, and in some cases, they may be life-threatening due to associated complications, especially vascular disorders. In 1997, the Villefranche classification defined 6 subtypes of EDS. However, many other new variants have been described over the last years. The "historical" EDS were characterized by abnormalities in fibrillar collagen protein synthesis. More recently, disorders of synthesis and organization of the extracellular matrix have been shown to be responsible for other types of EDS. Thus, many EDS are in fact metabolic diseases related to enzymatic defects. While there is no curative treatment for any type of EDS, early diagnosis is of utmost importance in order to optimize the symptomatic management of patients and to prevent avoidable complications. Patients must be treated and monitored by multidisciplinary teams in highly specialized reference centers. In this article, we present the current state of knowledge on these diseases that continue to be elucidated thanks to new molecular genetic techniques. PMID- 29032849 TI - Mapping the Landscape of Patient-centric Activities Within Clinical Research. AB - PURPOSE: Although there has been more involvement by patients in the drug development process, there are not a lot of published data that quantify patient centric activities or that document these activities across a large scale. In order to examine the patient-centricity landscape and to quantify the adoption and implementation of these initiatives, the Tufts Center for the Study of Drug Development and the Drug Information Association collaborated on a research study. The study examined patient-centric activities implemented by pharmaceutical, biotechnology, and contract research organizations, as well as activities being piloted or in the planning stages. METHODS: A global industry survey was conducted across pharmaceutical, biotechnology, and contract research organizations, assessing 25 patient-centric activities within clinical research. Some of these initiatives involve the use of social media to engage with patients, or the use of social listening to monitor study activity. Initiatives being implemented, planned, or piloted in addition to those not being considered were evaluated by respondents. Twenty-two unique companies responded to the survey, representing a mix of large, mid-sized, and small organizations. FINDINGS: The most widely adopted patient-centric initiatives, including activities both implemented and piloted across organizations, were patient advisory boards (17/22 companies), professional panels (16), lay-language clinical trial results summaries (13), assessment of the patient-organization landscape (10), and the use of home nursing networks (9). IMPLICATIONS: The results of the study suggest that organizations have a varied approach to the adoption and implementation of patient-centric initiatives, with more activities occurring in the planning stages than are being piloted or implemented. Many factors affect implementation and adoption, including buy-in by senior management, organizational vision, resources, and level of investment. PMID- 29032850 TI - Impact of Penicillin Allergy on Time to First Dose of Antimicrobial Therapy and Clinical Outcomes. AB - PURPOSE: The objective of this study was to evaluate the impact of a listed penicillin allergy on the time to first dose of antibiotic in a Veterans Affairs hospital. Additional clinical outcomes of patients with penicillin allergies were compared with those of patients without a penicillin allergy. METHODS: A retrospective chart review of veterans admitted through the emergency department with a diagnosis of pneumonia, urinary tract infection, bacteremia, and sepsis from January 2006 to December 2015 was conducted. The primary outcome was time to first dose of antibiotic treatment, defined as the time from when the patient presented to the emergency department to the medication administration time. Secondary outcomes included total antibiotic therapy duration and treatment outcomes, including mortality, length of stay, and 30-day readmission rate. FINDINGS: A total of 403 patients were included in the final analysis; 57 patients (14.1%) had a listed penicillin allergy. The average age of the population was 75 years and 99% of the population was male. The mean time to first dose of antibiotic treatment for patients with a penicillin allergy was prolonged compared with those without a penicillin allergy (236.1 vs 186.6 minutes; P = 0.03), resulting in an approximately 50-minute delay. Penicillin allergic patients were more likely to receive a carbapenem or fluoroquinolone antibiotic (P < 0.0001). IMPLICATIONS: Patients with a penicillin allergy had a prolonged time to first dose of antibiotic therapy. No significant differences were found in total antibiotic duration, length of stay, or 30-day readmission rate. The small sample size, older population, and single-center nature of this study may limit the generalizability of the present findings to other populations. PMID- 29032851 TI - Foreword. PMID- 29032852 TI - Limited influence of primary treated sewage waters on bacterial abundance, production and community composition in coastal seawaters. AB - The response of bacteria in terms of abundance, production and community structure to changes induced by the discharge of primary treated sewage waters was investigated combining microbiological, chemical and molecular tools. The primary treatment did not affect substantially the bacterial community structure in wastewaters and did not reduce the concentrations of fecal indicators. The spatial distribution of the sewage plume was governed by vertical stratification and currents. Bacterial abundance and production in the sea receiving waste waters depended predominantly on environmental conditions. In the waters with the highest concentration of fecal pollution indicators the bacterial community was characterized by allochthonous bacteria belonging to Epsilonproteobacteria, Firmicutes, Gammaproteobacteria and Bacteroidetes. The latter two taxa were also present in unpolluted waters but had a different structure, typical for oligotrophic environments. Although the impact of primary treated sewage waters was limited, a sanitary risk persisted due to the relevant presence of potentially pathogenic bacteria. PMID- 29032854 TI - Intrasinusal locking technique: a novel use of the ring block technique at sinus perforations for simultaneous implant placement. AB - Ten patients who underwent sinus lift surgery with simultaneous implant placement using the intrasinusal locking technique were evaluated retrospectively. All patients were scheduled for sinus floor elevation procedures with simultaneous implant placement. Schneiderian membrane perforation occurred during the lifting procedure, and conventional methods failed to repair the perforation. Therefore, an autogenous bone ring was placed at the base of the maxillary sinus and was locked to the alveolar crest with a dental implant. Marginal resorption around the dental implants was measured on panoramic radiographs. Prosthetic rehabilitation was performed at 6 months postoperative. The overall survival rate of the implants over a mean follow-up of 24.3 months was 90%. One case failed due to resorption of the alveolar crest around the implant as a result of infection; the implant and the adjacent ring were removed at 1 month postoperative. At the time of writing, the nine implants placed using the documented technique continue to function well, without any signs of peri-implant disease. The proposed approach allows for simultaneous dental implant placement in the extremely atrophic maxilla, even if there is extensive perforation of the Schneiderian membrane. PMID- 29032853 TI - Genetic Polymorphisms of CFH and ARMS2 Do Not Predict Response to Antioxidants and Zinc in Patients with Age-Related Macular Degeneration: Independent Statistical Evaluations of Data from the Age-Related Eye Disease Study. AB - PURPOSE: Considerable controversy has erupted in recent years regarding whether genotyping should be part of standard care for patients with age-related macular degeneration (AMD) who are being considered for treatment with antioxidants and zinc. We aimed to determine whether genotype predicts response to supplements in AMD. DESIGN: Three separate statistical teams reanalyzed data derived from the Age-Related Eye Disease Study (AREDS), receiving data prepared by the AREDS investigators and, separately, data from investigators reporting findings that support the use of genotyping. PARTICIPANTS: The population of interest was AREDS participants with AMD worse than category 1 and genotyping data available. Data from the 2 groups overlap imperfectly with respect to measurements made: the largest common set involved 879 participants for whom the same CFH and ARMS2 single nucleotide polymorphisms were measured by both groups. METHODS: Each team took a separate but complementary approach. One team focused on data concordance between conflicting studies. A second team focused on replicating the key claim of an interaction between genotype and treatment. The third team took a blank slate approach in attempting to find baseline predictors of treatment response. MAIN OUTCOME MEASURES: Progression to advanced AMD. RESULTS: We found errors in the data used to support the initial claim of genotype-treatment interaction. Although we found evidence that high-risk patients had more to gain from treatment, we were unable to replicate any genotype-treatment interactions after adjusting for multiple testing. We tested 1 genotype claim on an independent set of data, with negative results. Even if we assumed that interactions in fact did exist, we did not find evidence to support the claim that supplementation leads to a large increase in the risk of advanced AMD in some genotype subgroups. CONCLUSIONS: Patients who meet criteria for supplements to prevent AMD progression should be offered zinc and antioxidants without consideration of genotype. PMID- 29032855 TI - SPECT bone scintigraphy for the assessment of condylar growth activity in mandibular asymmetry: is it accurate? AB - The comparison of serial radiographs and clinical photographs is considered the current accepted standard for the diagnosis of active condylar hyperplasia in patients with facial asymmetry. Single photon emission computed tomography (SPECT) has recently been proposed as an alternative method. SPECT can be interpreted using three reported methods absolute difference in uptake, uptake ratio, and relative uptake. SPECT findings were compared to those from serial comparisons of radiographs and clinical photographs taken at the time of SPECT and a year later; the sensitivities and specificities were determined. Two hundred patient scans were evaluated. Thirty-four patients showed active growth on serial growth assessment. On comparison with serial growth assessment, the sensitivity and specificity of the three methods ranged between 32.4% and 67.6%, and 36.1% and 78.3%, respectively. Analysis using receiver operating characteristic (ROC) curves revealed area under the curve (AUC) values of <0.58. The average age (mean+/-standard deviation) of patients with active growth was 18.6+/-2.8 years, and average growth in the anteroposterior, vertical, and transverse directions was 0.94+/-0.91mm, 0.88+/-0.86mm, and 1.4+/-0.66 mm, respectively. With such low sensitivity and specificity values, it is not justifiable to use SPECT in place of serial growth assessment for the determination of condylar growth status. PMID- 29032857 TI - Department of Error. PMID- 29032858 TI - Treaty to prohibit nuclear weapons: towards safeguarding humanity. PMID- 29032856 TI - Sedentary Time, Physical Activity, and Adiposity: Cross-sectional and Longitudinal Associations in CARDIA. AB - INTRODUCTION: Higher sedentary time (ST) and lower moderate- to vigorous intensity physical activity (MVPA) have each been associated with greater adiposity, but most studies are cross-sectional and measure ST and MVPA by self report. This study evaluated associations between objective ST and MVPA with current and 5-year changes in BMI and waist circumference. METHODS: The Coronary Artery and Risk Development in Young Adults longitudinal cohort study recruited black or white young adults from four U.S. cities. This analysis (conducted in 2016) used data from 2005 to 2006 as baseline and 2010 to 2011 as 5-year follow up. Accelerometers measured baseline ST (total and prolonged in bouts of >=10 minutes) and MVPA (bouts of >=10 minutes). BMI and waist circumference were assessed at baseline and repeated 5 years later. Regression models included sedentary time and MVPA simultaneously with adjustment for demographics and lifestyle factors. RESULTS: Participants (n=1,826) were 57% female; 40% black; aged 38-50 years; and had a BMI of 28.7 (SD=6.3). At baseline, total and prolonged ST were directly associated with BMI and waist circumference, whereas MVPA was inversely related (all p<0.05). Longitudinally, only prolonged ST (per hour/day) was associated with greater increases in BMI (0.077, p=0.033) and waist circumference (0.198 cm, p=0.028). Associations between ST and adiposity were more apparent in less active participants. Risk of >=5% increase in BMI across assessments increased by 8%-10% (p<0.05) per hour/day of ST. CONCLUSIONS: Time spent sedentary was associated with increases in adiposity over time. Reducing sedentary time may be a novel strategy for weight control. PMID- 29032859 TI - The effect of maternal DHA supplementation on body fat mass in children at 7 years: follow-up of the DOMInO randomized controlled trial. AB - BACKGROUND: Animal studies have suggested that an increased supply of omega-3 long chain polyunsaturated fatty acids (LCPUFA), in particular docosahexaenoic acid (DHA), during the perinatal period can prevent later excess body fat mass. However, previous human studies have produced inconsistent findings, and few have assessed potential effects beyond 6 years of age. OBJECTIVE: To evaluate the effect of supplementing women in the second half of pregnancy with omega-3 LCPUFA, chiefly as DHA, on the percentage body fat of children at 7 years of age, as assessed by two methods: air displacement plethysmography (BOD POD) and bioelectrical impedance spectroscopy (BIS). DESIGN: A time-restricted follow up at 7 years of age of children born to mothers enrolled in DOMInO (DHA to Optimise Maternal Infant Outcome) randomized controlled trial, in which women took either high-DHA tuna oil (800mg/day DHA) or placebo capsules from 20 weeks' gestation to delivery, at Adelaide-based centers. Primary outcomes were the percentage body fat at 7 years of age as assessed by both BOD POD and BIS. Weight, height, waist/hip circumferences and BMI were also recorded. RESULTS: A total of 252 DOMInO children (n=135 males, n=117 females) completed the follow up study. There were no differences between the DHA and placebo groups in percentage body fat as assessed by either BOD POD [adjusted mean difference: -0.35, 95% CI: -1.46, 2.16; P=0.71] or BIS [adjusted mean difference: 0.64, 95% CI: -0.99, 2.27; P=0.44]. BMI z-scores were also similar between groups [adjusted mean difference: 0.18, 95% CI: -0.10, 0.45; P=0.21]. There were also no differences in height, weight or waist and hip circumference between the DHA and placebo groups at 7 years of age. CONCLUSION: DHA supplementation in the second half of pregnancy has no effect on childhood growth or fat mass at 7 years of age, supporting findings from follow ups of the DOMInO children at 3 and 5 years. PMID- 29032860 TI - Biomechanical comparison of two different locking plates for open wedge high tibial osteotomy. AB - BACKGROUND: The purpose of this study was to compare the mechanical stability of a relatively thin locking plate (FlexitSystem implant) with a relatively firm locking plate (TomoFix implant), both used for opening wedge high tibial osteotomy. METHODS: Seven fresh frozen paired human cadaveric tibiae were used. The opening wedge high tibial osteotomies in the left tibiae were fixated with the FlexitSystem implant and in the right tibiae with the TomoFix implant. The tibiae were CT-scanned to determine the bone mineral density. Axial loading was applied in a cyclic fashion for 50,000 cycles. We compared throughout the loading history the relative motions between the proximal and distal tibia using roentgen stereophotogrammetry analysis at set intervals. Also the strength of the reconstructions was compared using a displacement-controlled compressive test until failure. RESULTS: One pair (with the lowest bone mineral density) failed during the preparation of the osteotomy. The FlexitSystem implant displayed a similar stability compared to the TomoFix implant, with low translations (mean 2.16 +/- 1.02 mm vs. 4.29 +/- 5.66 mm) and rotations (mean 3.17 +/- 2.04 degrees vs. 4.30 +/- 6.78 degrees ), which was not significant different. Although on average the FlexitSystem reconstructions were slightly stronger than the Tomofix reconstructions (mean 4867 +/- 944 N vs. 4628 +/- 1987 N), no significant (p = 0.71) differences between the two implants were found. CONCLUSION: From a biomechanical point of view, the FlexitSystem implant is a suitable alternative to the TomoFix implant for a high tibial open wedge osteotomy. PMID- 29032861 TI - Patellar Resurfacing in Total Knee Arthroplasty: Systematic Review and Meta Analysis. AB - BACKGROUND: Patellar resurfacing in total knee arthroplasty remains controversial. The aim of this study is to evaluate this technique through an analysis of comparative studies in the current literature. METHODS: We performed a comprehensive search of PubMed, MEDLINE, Cochrane, CINAHL, and EMBASE databases using various combinations of the keywords "Knee," "Replacement," "Prosthesis," "Patella," "Resurfacing," and "Arthroplasty." All articles relevant to the subject were retrieved, and their bibliographies were hand searched for further references relevant to primary patellar resurfacing in total knee arthroplasty. Only articles published in peer-reviewed journals were included in this systematic review. RESULTS: The percentage for a reoperation was 1% for the patellar resurfacing group (17/1636) and 6.9% for the non-resurfacing group (118/1699) (odds ratio [OR] 0.18, 95% confidence interval [CI] 0.11-0.29, P < .00001). The patellar resurfacing group showed a significantly higher postop Knee Society Score (KSS) pain (OR 1.52, 95% CI 0.68-2.35, P = .004) and postop Hospital for Special Surgery score (OR 4.35, 95% CI 3.21-5.49, P < .00001), over the non-resurfacing group. CONCLUSION: Based on the outcome scores of KSS (pain), KSS (function), and Hospital for Special Surgery postop, patellar resurfacing TKAs have performed better than non-resurfaced TKAs. The lower secondary operation and revision rates for patellar resurfaced TKAs also demonstrate that this technique is the more effective option. However, the full impact of patellar resurfacing still needs to be critically evaluated by larger randomized controlled trials with long-term follow-up. PMID- 29032862 TI - Endovascular treatment of acute tandem occlusion strokes and stenting first experience. AB - This study demonstrates the radiologic and clinical findings, etiologies and intervention strategy in 8 acute ischemic stroke patients with tandem occlusions. The mean age was 57 and mean NIHSS score was 19. Stent-assisted thrombectomy (SAT) was performed on all of the patients. Additionally, 6 patients underwent carotid artery stenting before SAT. Recanalization with TICI>=2b was attained in 7/8 patients. The 90thday median mRS was 2 and mortality was 1/8. The etiologies of the tandem occlusions were either extracranial high grade ICA stenosis/occlusion or cervical ICA dissection. When the stent-first approach was applied with distal thrombectomy, high TICI and low mRS scores were obtained. PMID- 29032863 TI - Measuring the Quality of Personal Care in Patients Undergoing Radiotherapy for Prostate Cancer. AB - AIMS: To describe the quality of the non-technical component of the care (personal care) of patients receiving radical radiotherapy for prostate cancer and to identify elements of personal care that should be priorities for quality improvement. MATERIALS AND METHODS: One hundred and eight patients undergoing radiotherapy for localised prostate cancer completed a self-administered questionnaire that asked them to rate the importance of 143 non-technical elements of care and to rate the quality of their own care with respect to each element. The elements that a patient rated as both 'very important' and less than 'very good' were deemed to be his priorities for improvement. The priorities of the population were established by ranking the elements based on the percentage of patients who identified them as a priority (importance/quality analysis). RESULTS: The response rate was 65%. The percentage of elements rated 'very good' varied from patient to patient: median 79% (interquartile range 69-92%). The percentage of elements rated either 'very good' or 'good' was higher: median 96% (interquartile range 86-98%). Nonetheless, almost every patient rated at least some elements of his care as less than optimal, regardless of the cut-off point used to define optimal quality. Patients assigned their lowest quality ratings to elements relating to the quality of the treatment environment and comprehensiveness of additional services available to them. However, patients rated most of these elements as relatively unimportant, and importance/quality analysis identified elements of care relating to communication of information about the disease and its treatment as the highest priorities for quality improvement. CONCLUSIONS: Most patients rated most elements of their personal care as very good, but almost all were able to identify some elements that were less than optimal. When ratings of quality were integrated with ratings of importance, elements relating to communication emerged as the patients' highest priorities for quality improvement. PMID- 29032864 TI - Dietary variation and mechanical properties of articular cartilage in the temporomandibular joint: implications for the role of plasticity in mechanobiology and pathobiology. AB - Due to their nature as tissue composites, skeletal joints pose an additional challenge in terms of evaluating the functional significance of morphological variation in their bony and cartilaginous components in response to altered loading conditions. Arguably, this complexity requires more direct means of investigating joint plasticity and performance than typically employed to analyze macro- and micro-anatomical phenomena. To address a significant gap in our understanding of the plasticity of the mammalian temporomandibular joint (TMJ), we investigated the histology and mechanical properties of condylar articular cartilage in rabbits subjected to long-term variation in diet-induced masticatory stresses, specifically cyclical loading. Three cohorts of male weanlings were raised for six months on different diets until adulthood. Following euthanasia, the TMJ condyles on one side were dissected away, fixed, decalcified, dehydrated, embedded and sectioned. Safranin O staining was employed to identify variation in proteoglycan content, which in turn was used to predict patterns of articular cartilage stiffness in contralateral condylar specimens for each treatment group. Hematoxylin and eosin staining was used to quantify diet-induced changes in chondrocyte hypertrophy and cellularity. Mechanical tests document significant decreases in articular cartilage stiffness corresponding to patterns of extracellular matrix relative protein abundance in rabbits subjected to greater cyclical loading. This indicates that TMJs routinely subjected to higher masticatory stresses due to a challenging diet eventually develop postnatal decreases in the ability to counter compressive loads during postcanine biting and chewing. These findings provide novel information regarding TMJ performance, with broader implications about the costs and benefits of phenotypic plasticity as well as implications for how such biological processes affect connective tissue mechanobiology and pathobiology. PMID- 29032865 TI - Electron postmastectomy chest wall plus comprehensive nodal irradiation technique using Electron Monte Carlo dose algorithm. AB - For left-sided postmastectomy patients requiring chest wall plus comprehensive nodal irradiation, sometimes traditional techniques such as partial wide tangents or electron/tangents combination are not feasible due to abnormal chest wall contour or heart position or unusually wide excision scar. We developed electron chest wall irradiation technique using Electron Monte Carlo (EMC) dose algorithm that will achieve heart sparing with acceptable ipsilateral lung dose, minimal contralateral lung, and breast dose. Ten left-sided postmastectomy patients with very challenging anatomy were selected for this dosimetry study. The en face electron fields were designed from a single isocenter and gantry angle with different energy beams using different cutouts that matched on the skin. Smaller energy was used in the central thin chest wall part and higher energy in the medial internal mammary nodes (IMN) area, superior part of the thick chest wall, and/or axillary nodal area. The electron fields were matched to the photon supraclavicular field in the superior region. Daily field junctions were used to feather the match lines between all the fields. Electron field dose calculations were done with Monte Carlo. Five patients' chest wall fields were planned with 6/9MeVcombination, 1 with 6/12 MeV, 2 with 9/12 MeV, 1 with 9/16 MeV, and 1 with 6/9/12 MeV. Institutional criteria of prescription dose of 50 Gy for target volumes and normal tissue dose were met with this technique in spite of the challenging anatomy. Mean heart dose averaged 3.0 Gy +/- 0.8 Gy. For ipsilateral lung, V20Gy and V5Gy averaged 33.2% +/- 4.5% and 64.6% +/- 9.6%, respectively. For contralateral lung, V5Gy averaged 5.1% +/- 5.0%. For contralateral breast, V5Gy averaged 3.3% +/- 3.1%. The electron chest wall irradiation technique using EMC dose algorithm can provide adequate dose coverage to the chest wall, IMNs, and/or axillary nodes while achieving heart sparing with acceptable ipsilateral lung dose, minimal contralateral lung, and breast dose. PMID- 29032866 TI - HSP90 maintains boar spermatozoa motility and mitochondrial membrane potential during heat stress. AB - Heat Shock Proteins (HSP) is a family of proteins that protects cells from high temperatures. The present work aimed to elucidate the role that HSP90 exerts on boar sperm incubated under heat stress conditions on viability, total motility (TM), progressive motility (PM), acrosome status, mitochondrial membrane potential and plasma membrane lipid organization. Sperm were incubated in non capacitating conditions (Tyrode's basal medium or TBM) for 3, 8 and 24h or in capacitating conditions (Tyrode's complete medium or TCM) for 4h at 38.5 degrees C or 40 degrees C (Heat stress) in the presence or absence of 5 or 20MUM of 17 AAG, a specific HSP90 inhibitor. Sperm viability was not affected by the presence of 17-AAG in any condition tested compared with its own control (at the same temperature and incubation time). In non-capacitating conditions TM (22.7+/-4.1 vs. 1.9+/-1.1; % mean+/-SEM), PM (3.1+/-0.9 vs. 0) and high mitochondrial membrane potential (19.5+/-2.2 vs. 11.8+/-0.8) decreased significantly in sperm incubated at 40 degrees C for 24h in the presence of 20MUM 17-AAG (control vs. 20MUM 17-AAG, respectively; p<0.05). In sperm incubated at 38.5 degrees C only a mild decrease in TM was observed (48.7+/-3.1 vs. 32.1+/-4.8; control vs. 20MUM 17 AAG, respectively; p<0.05). However, under capacitating conditions none of the sperm parameters studied were affected by 17-AAG after 4h of incubation. These results demonstrate for the first time the role of HSP90 in the maintenance of boar sperm motility and mitochondrial membrane potential during prolonged heat stress in non-capacitating conditions. PMID- 29032867 TI - Adherence to topical treatment of glaucoma, risk and protective factors: A review. AB - INTRODUCTION: Glaucoma is a chronic asymptomatic disease, progressing to loss of vision. Elevated intraocular pressure is the only modifiable factor. Adherence to glaucoma treatment varies from 2-80%. OBJECTIVE: To evaluate factors associated with adherence to topical glaucoma treatment reported in the literature, and to identify protective factors and risk factors, as well as modifiable and non modifiable factors, in order to take them into account to perform interventions in adherence. MATERIALS AND METHODS: A bibliographic search of articles published in the last 8 years in databases such as Clinical Key, Cochrane (OVID), EBSCO, Lilacs, PubMed and Science Direct, of different observational studies that performed a measurement of the treatment of glaucoma and to identify associated factors. RESULTS: A total of 7 studies were selected that directly and indirectly measured adherence to glaucoma treatment. Different risk and protective factors for adherence to treatment were found. These showed that African-American race, poor education, low personal income, and high treatment costs, are strongly related to poor adherence to treatment. It was also found that educational interventions and a good patient- physician relationship impacted positively on adherence. CONCLUSION: The results found are a guide for risk and protective factors for adherence to treatment of glaucoma. It is cost effective to educate patients to positively impact adherence. By identifying such factors, attention can be focused on poor adherence patients. PMID- 29032868 TI - What Measures Improve Reduction of Intussusception in Pediatric Patients? PMID- 29032869 TI - SEP-1: A Sepsis Measure in Need of Resuscitation? PMID- 29032870 TI - Insurance Status and Access to Urgent Primary Care Follow-up After an Emergency Department Visit in 2016. AB - STUDY OBJECTIVE: We examine the availability of follow-up appointments for emergency department (ED) patients without established primary care by insurance and clinical condition. METHODS: We used "secret shopper" methodology, employing 2 black men to telephone all 53 primary care practices in greater New Haven, posing as new patients discharged from the ED and requesting follow-up appointments. Each practice received 6 scripted calls from each caller during an 8-month period, reflecting all possible scenarios based on 3 insurance types (Medicaid, state exchange, and commercial) and 2 conditions (hypertension and back pain). Primary outcome was the proportion of calls that obtained an appointment in 7 calendar days (7-day appointment rate). Secondary outcomes included overall appointment rate and appointment wait time. RESULTS: Among the total of 604 calls completed, the 7-day appointment rate was 30.7% (95% confidence interval [CI] 22.6% to 38.8%). Compared with commercial insurance, Medicaid calls had lower 7-day rate (25.5% versus 35.7%; difference 10.2%; 95% CI 2.2% to 18.1%) and overall appointment rate (53.5% versus 77.8%; difference 24.4%; 95% CI 13.4% to 35.4%). There was no significant difference between state exchange and commercial insurance calls in 7-day rate (30.9% versus 35.7%; difference 4.8%; 95% CI -3.1% to 12.6%) or overall appointment rate (73.4% versus 77.8%; difference 4.4%; 95% CI -2.7% to 11.6%). Back pain, compared with hypertension, had lower 7-day appointment rate (27.6% versus 33.7%; difference 6.1%; 95% CI 1.0% to 11.2%), but no significant difference in overall appointment rates (67.0% versus 69.4%; difference 2.4%; 95% CI -2.7% to 7.5%). CONCLUSION: For patients without established primary care, obtaining timely follow-up after acute care in the ED is difficult, particularly for Medicaid beneficiaries. PMID- 29032871 TI - Can a Negative High-Sensitivity Troponin Result Rapidly Rule Out Acute Myocardial Infarction? PMID- 29032872 TI - Assessing Bleeding Risk in Patients With Intentional Overdoses of Novel Antiplatelet and Anticoagulant Medications. AB - STUDY OBJECTIVE: In recent years, the use of novel anticoagulants and antiplatelet agents has become widespread. Little is known about the toxicity and bleeding risk of these agents after acute overdose. The primary objective of this study is to evaluate the relative risk of all bleeding and major bleeding in patients with acute overdose of novel antiplatelet and anticoagulant medications. METHODS: This study is a retrospective study of acute ingestion of apixaban, clopidogrel, ticlopidine, dabigatran, edoxaban, prasugrel, rivaroxaban, and ticagrelor reported to 7 poison control centers in 4 states during a 10-year span. The prevalence of bleeding for each agent was calculated, and hemorrhage was classified as trivial, minor, or major. RESULTS: A total of 322 acute overdoses were identified, with the majority of cases involving clopidogrel (260; 80.7%). Hemorrhage occurred in 16 cases (4.9%), including 7 cases of clopidogrel, 6 cases of rivaroxaban, 2 cases of dabigatran, and 1 case of apixaban. Most cases of hemorrhage were classified as major (n=9). Comparing the novel anticoagulants with the P2Y12 receptor inhibitors, the relative risk for any bleeding with novel anticoagulant was 6.68 (95% confidence interval 2.63 to 17.1); the relative risk of major bleeding was 18.1 (95% confidence interval 3.85 to 85.0). CONCLUSION: Acute overdose of novel anticoagulants or antiplatelet agents is associated with a small risk of significant hemorrhage. The risk is greater with the factor Xa inhibitors and direct thrombin inhibitors than with the P2Y12 receptor antagonists. PMID- 29032873 TI - Intrarater Reliability of Range of Motion Measurements of the Uninjured Wrist in Women After Distal Radius Fracture. AB - PURPOSE: To determine the intrarater reliability of serial wrist and forearm range of motion (ROM) measurements of the uninjured limb, by 1 evaluator using a standardized technique of measurement, in women who have sustained a distal radius fracture. METHODS: From December 2007 to December 2014, skeletally mature women who had sustained an isolated distal radius fracture routinely had sequential measurements of wrist extension and flexion as well as forearm supination and pronation in both their injured and their uninjured limbs, at a minimum of 3-week intervals. The senior author (G.H.F.J.) used a standardized technique of measurement of ROM throughout this period, and these data related to the uninjured wrist and forearm were retrospectively reviewed. RESULTS: Of 508 women who had a distal radius fracture, 506 had the measurements made of the uninjured wrist and forearm on 2, 300 on 3, and 128 on 4 separate occasions. The average age of the women was 61 years, with a range from 16 to 94 years. The intraclass correlation coefficients between measurements over time for extension, flexion, and supination measurements were 0.71, 0.63, 0.68, respectively, and 0.47 for pronation. The intraclass correlation coefficient varied according to patient age, but without specific progression in any age group for any ROM. Extension, flexion, and supination decreased significantly as age increased, whereas forearm pronation did not. CONCLUSIONS: Measurement of wrist and forearm motion of the uninjured limb can be reliably reproduced by a single rater, most so for extension, flexion, and supination, and less so for pronation. Interrater reliability assessment remains to be evaluated. CLINICAL RELEVANCE: Given the intrarater reliability of wrist and forearm motion measurement, the opposite (uninjured) wrist probably represents a useful reference metric for motion restoration for recovery from injury to the opposite limb. PMID- 29032874 TI - Rotational Corrective Osteotomy for Malunited Distal Diaphyseal Radius Fractures in Children and Adolescents. AB - PURPOSE: To report our method of computer-planned rotational corrective osteotomy for malunited distal diaphyseal radius fractures in children and adolescents using a custom jig and to review the results of 4 cases. METHODS: Four patients (mean age, 13 years; range, 11-16 years) underwent computer-planned rotational corrective osteotomy for malunited distal diaphyseal radius fracture using a custom jig. We retrospectively evaluated their radiographic and clinical data. RESULTS: In patients who had marked restriction of forearm supination before osteotomy, the mean arc of forearm supination improved from 5 degrees before surgery to 79 degrees after surgery. Angular deformity on x-ray, range of forearm rotation, and grip strength all improved after surgery. Mild and moderate pain reported by 1 and 2 patients, respectively, was resolved after surgery. CONCLUSIONS: Computer-planned rotational corrective osteotomy for malunited distal diaphyseal radius fracture in children and adolescents using a custom jig is a strategy that facilitates the surgical procedure by accurately correcting both rotational and angular deformities on 1 plane in a single procedure. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic V. PMID- 29032875 TI - Ventilator use by emergency medical services during 911 calls in the United States. AB - BACKGROUND: Emergency and transport ventilators use in the prehospital field is not well described. This study examines trends of ventilator use by EMS agencies during 911 calls in the United States and identifies factors associated with this use. METHODS: This retrospective study used four consecutive releases of the US National Emergency Medical Services Information System (NEMSIS) public research dataset (2011-2014) to describe scene EMS activations (911 calls) with and without reported ventilator use. RESULTS: Ventilator use was reported in 260,663 out of 28,221,321 EMS 911 scene activations (0.9%). Patients with ventilator use were older (mean age 67+/-18years), nearly half were males (49.2%), mostly in urban areas (80.2%) and cared for by advanced life support (ALS) EMS services (89.5%). CPAP mode of ventilation was most common (71.6%). "Breathing problem" was the most common dispatch complaint for EMS activations with ventilator use (63.9%). Common provider impression categories included "respiratory distress" (72.5%), "cardiac rhythm disturbance" (4.6%), "altered level of consciousness" (4.3%) and "cardiac arrest"(4.0%). Ventilator use was consistently higher at the Specialty Care Transport (SCT) and Air Medical Transport (AMT) service levels and increased over the study period for both suburban and rural EMS activations. Significant factors for ventilator use included demographic characteristics, EMS agency type, specific complaints, provider's primary impressions and condition codes. CONCLUSIONS: Providers at different EMS levels use ventilators during 911 scene calls in the US. Training of prehospital providers on ventilation technology is needed. The benefit and effectiveness of this intervention remain to be assessed. PMID- 29032876 TI - Clinical value of triage lactate in risk stratifying trauma patients using interval likelihood ratios. AB - : Emergency physicians face the challenge of rapidly identifying high-risk trauma patients. Lactate (LAC) is widely used as a surrogate of tissue hypoperfusion. However, clinically important values for LAC as a predictor of mortality are not well defined. OBJECTIVES: 1. To assess the value of triage LAC in predicting mortality after trauma. 2. To compute interval likelihood ratios (LR) for LAC. METHODS: Retrospective chart review of trauma patients with a significant injury mechanism that warranted labs at an urban trauma center. OUTCOME: In-hospital mortality. Data are presented as median and quartiles or percentages with 95% confidence intervals. Groups (lived vs. died) were compared with Man-Whitney-U or Fisher's-exact test. Multivariate analysis was used to measure the association of the independent variables and mortality. The interval likelihood ratios were calculated for all LAC observed values. RESULTS: 10,575 patients; median age: 38 [25-57]; 69% male; 76% blunt; 1.1% [n=119] mortality. LAC was statistically different between groups in univariate (2.3 [1.6,3.0] vs 2.8 [1.6,4.8], p=0.008) and multivariate analyses (odds ratio: 1.14 [1.08-1.21], p=0.0001). Interval ratios for LR- ranged from 0.6-1.0. Increasing LAC increased LR+. However, LR+ for LAC reached 5 with LAC>9mmol/L and passed 10 (moderate and conclusive increase in disease probability, respectively) with LAC>18mmol/L. CONCLUSIONS: In a cohort of trauma patients with a wide spectrum of characteristics triage LAC was statistically able to identify patients at high risk of mortality. However, clinically meaningful contribution to decision-making occurred only at LAC>9. LAC was not useful at excluding those with a low risk of mortality. PMID- 29032877 TI - Intraoperative instillation of ropivacaine during the placement of sub-muscular cosmetic breast implants: Is there a clinical benefit? AB - INTRODUCTION: The sub-muscular placement of cosmetic breast implants leads to substantial pain due to the muscular distention. The aim of this study was to assess the efficiency of intraoperative ropivacaine instillation to reduce postoperative pain the day after surgery. MATERIAL AND METHODS: We conducted a prospective, controlled, single-blinded study comparing the intraoperative instillation of 7.5mg of ropivacaine through Redon drains with the standard procedure in 72 patients undergoing sub-muscular cosmetic breast augmentation for the first time. RESULTS: Pain at the awakening on postoperative day 1 was 4.8 on a simple numeric pain scale in the treatment group and 5.1 in the control group (P>0.05). On postoperative day 3, pain at awakening was 3.7 in both groups (P>0.05), and on postoperative day 5, pain was 2.8 in the treatment group and 2.7 in the control group (P>0.05). CONCLUSION: Local instillation of ropivacaine in the implant pocket during surgery did not decrease postoperative pain on day 1, day 3 and day 5. From now on, we are able to tell to patients that the postoperative pain after sub-muscular cosmetic breast implants surgery is about 5/10 on postoperative day 1, 4/10 at day 3 and 3/10 at day 5. LEVEL OF EVIDENCE: Level II. PMID- 29032878 TI - The anterolateral thigh perforator flap in pharyngo-esophageal reconstruction. AB - Today's customary techniques for pharyngo-esophageal reconstruction are jejunum and radial forearm free flaps. In this type of reconstruction, the jejunum flap is considered as the reference, but when its harvesting is not possible, the radial forearm flap is used. Since perforator flaps have begun to be developed, the anterolateral thigh flap (ATF) has become increasingly prominent in pharyngo esophageal reconstruction. The aim of our study was to describe the use of the anterolateral perforator flap in pharyngo-esophageal reconstruction (indications, harvesting method, flap design) and to discuss its advantages and drawbacks as regards oral feeding and esophageal speech. PMID- 29032879 TI - Geant4 based Monte Carlo simulation for verifying the modified sum-peak method. AB - The modified sum-peak method can practically estimate radioactivity by using solely the peak and the sum peak count rate. In order to efficiently verify the method in various experimental conditions, a Geant4 based Monte Carlo simulation for a high-purity germanium detector system was applied. The energy spectra in the detector were simulated for a 60Co point source in various source to detector distances. The calculated radioactivity shows good agreement with the number of decays in the simulation. PMID- 29032880 TI - Comparison of 131I activity measurements at the NCBJ RC POLATOM and the ENEA INMRI linked to the BIPM SIR system. AB - A bilateral comparison between ENEA-INMRI (Italy) and NCBJ RC POLATOM (Poland) of 131I-solution activity measurements was organized in the year 2015 and piloted by POLATOM, which provided the sources for the comparison. The 131I master solution was standardized independently at both institutes by using Liquid Scintillation Counting and ionization chamber techniques. The 131I master solution was then sent by POLATOM to the BIPM International Reference System (SIR). The comparison was registered as an EURAMET.RI(II)-K2.I-131 key comparison allowing the ENEA INMRI result to enter in the SIR database. PMID- 29032881 TI - Estimation of 134Cs activity by a new approximation referred to the sum-peak method via a well-type Ge detector. AB - The activity of a sample containing 134Cs and 137Cs was estimated by means of a new approximation referred to the sum-peak method using a well-type Ge detector. The contribution of 137Cs to the total count rate was estimated from its peak count rate, and subtracted from the total count rate. Then the total count rate originating from 134Cs was estimated. Finally, the new method was applied and the 134Cs activity was estimated. PMID- 29032882 TI - Adapting a Computerized Medical Dictation System to Prepare Academic Papers in Radiology. AB - Everyday radiologists use dictation software to compose clinical reports of imaging findings. The dictation software is tailored for medical use and to the speech pattern of each radiologist. Over the past 10 years we have used dictation software to compose academic manuscripts, correspondence letters, and texts of educational exhibits. The advantages of using voice dictation is faster composition of manuscripts. However, use of such software requires preparation. The purpose of this article is to review the steps of adapting a clinical dictation software for dictating academic manuscripts and detail the advantages and limitations of this technique. PMID- 29032883 TI - Evaluating the accuracy of intraoperative frozen section during inguinal lymph node dissection in penile cancer. AB - INTRODUCTION: Inguinal lymph node dissection is an integral part in the management of invasive penile tumors with intraoperative assessment often aiding decision-making during dissection. In this study, we evaluate the diagnostic value of intraoperative frozen section (FS) and analyze clinicopathologic factors that affect its accuracy. MATERIAL AND METHODS: We, retrospectively, reviewed 84 patients with squamous cell carcinoma of the penis who underwent inguinal lymph node dissection at our institution. Intraoperative FS from the superficial inguinal nodes was available in 65 patients and compared with correspondent permanent sections (pathologic node staging [pN]). Sensitivity and specificity were calculated and factors associated with a false negative event were analyzed using logistic regression. RESULTS: The total positive node rate was 60% (39/65). Of 39 pN+ cases, 10 (25.6%) had false-negative FS, whereas the remaining 29 were concordant intraoperatively. Sensitivity and specificity were 0.74 and 1, respectively. On univariable analysis, higher body mass index was associated with a false negative event although there was no association with age, receipt of neoadjuvant therapy, or clinical node stage. CONCLUSION: Intraoperative FS is highly specific and moderately sensitive for the detection of positive superficial inguinal lymph nodes in penile cancer. Its use can help guide intraoperative surgical planning while limiting its reliance for patients with higher body mass index. PMID- 29032884 TI - The genetics underlying idiopathic ventricular fibrillation: A special role for catecholaminergic polymorphic ventricular tachycardia? AB - BACKGROUND: Ventricular fibrillation (VF) is a major cause of sudden cardiac death. In some cases clinical investigations fail to identify the underlying cause and the event is classified as idiopathic (IVF). Since mutations in arrhythmia-associated genes frequently determine arrhythmia susceptibility, screening for disease-predisposing variants could improve IVF diagnostics. METHODS AND RESULTS: The study included 76 Finnish and Italian patients with a mean age of 31.2years at the time of the VF event, collected between the years 1996-2016 and diagnosed with idiopathic, out-of-hospital VF. Using whole-exome sequencing (WES) and next-generation sequencing (NGS) approaches, we aimed to identify genetic variants potentially contributing to the life-threatening arrhythmias of these patients. Combining the results from the two study populations, we identified pathogenic or likely pathogenic variants residing in the RYR2, CACNA1C and DSP genes in 7 patients (9%). Most of them (5, 71%) were found in the RYR2 gene, associated with catecholaminergic polymorphic ventricular tachycardia (CPVT). These genetic findings prompted clinical investigations leading to disease reclassification. Additionally, in 9 patients (11.8%) we detected 10 novel or extremely rare (MAF<0.005%) variants that were classified as of unknown significance (VUS). CONCLUSION: The results of our study suggest that a subset of patients originally diagnosed with IVF may carry clinically-relevant variants in genes associated with cardiac channelopathies and cardiomyopathies. Although misclassification of other cardiac channelopathies as IVF appears rare, our findings indicate that the possibility of CPVT as the underlying disease entity should be carefully evaluated in IVF patients. PMID- 29032885 TI - The "Subtle" connection between development of cardiac implantable electrical device infection and survival after complete system removal: An observational prospective multicenter study. AB - BACKGROUND: Despite the improvements in transvenous lead extraction (TLE), patients with cardiac implantable device related infection (CIEDI) have a poor prognosis at long term. We explored the possible role of factors associated with development of CIEDI as predictors of post-TLE survival. METHODS: We performed a multi-center prospective observational study in a population of consecutive patients referred for TLE for CIEDI. We adopted a previously developed 10-point scale for CIEDI risk stratification and assessed its performance in predicting post-TLE survival. RESULTS: We enrolled 169 consecutive patients with CIEDI (systemic infection in 48.5% and vegetations in 24.5%). A Shariff score >=3 was present in 102/169 (60.4%) of the enrolled patients. Complete radiological success of TLE was obtained in 163 patients. Twenty-seven patients (15.9%) died after a mean follow-up of 20.8+/-12.0months. Two factors were independently associated with post-TLE death: a Shariff score >=3 (HR 10.833, 95% CI 2.544 46.129; p=0.001) and the presence of vegetations at transesophageal echocardiography (HR 3.324, 95% CI 1.530-7.221; p=0.002). CONCLUSIONS: Risk factors for development of CIEDI are also predictive of post TLE mortality, together with the presence of vegetations. Improvement of our preventive strategies for CIEDI is crucial for enhancing the outcomes of CIED patients overall. PMID- 29032886 TI - Prevalence and Risk Factors for Paroxysmal Atrial Fibrillation and Flutter Detection after Cryptogenic Ischemic Stroke. AB - INTRODUCTION: Long-term cardiac monitoring with implantable loop recorders (ILRs) has revealed occult paroxysmal atrial fibrillation and flutter (PAF) in a substantial minority of cryptogenic ischemic stroke (CIS) patients. Herein, we aim to define the prevalence, clinical relevance, and risk factors for PAF detection following early poststroke ILR implantation. MATERIALS AND METHODS: A retrospective study of CIS patients (n = 100, mean age 65.8 years; 52.5% female) who underwent ILR insertion during, or soon after, index stroke admission. Patients were prospectively followed by the study cardiac electrophysiologist who confirmed the PAF diagnosis. Univariate and multivariate analyses compared clinical, laboratory, cardiac, and imaging variables between PAF patients and non PAF patients. RESULTS: PAF was detected in 31 of 100 (31%) CIS patients, and anticoagulation was initiated in almost all (30 of 31, 96.8%). Factors associated with PAF detection include older age (mean [year] 72.9 versus 62.9; P = .003), white race (odds ratio [OR], 4.5; confidence interval [CI], 1.8-10.8; P = .001), prolonged PR interval (PR > 175 ms; OR, 3.3; CI, 1.2-9.4; P = .022), larger left atrial (LA) diameter (mean [cm] 3.7 versus 3.5; P = .044) and LA volume index (mean [cc/m2]; 30.6 versus 24.2; P = .014), and lower hemoglobin (Hb)A1c (mean [%] 6.0 versus 6.4; P = .036). Controlling for age, obesity (body mass index > 30 kg/m2; OR, 1.2; CI, 1.1-1.4; P = .033) was independently associated with PAF detection. DISCUSSION: PAF was detected with high prevalence following early postcryptogenic stroke ILR implantation and resulted in significant management changes. Older age, increased PR interval, LA enlargement, and lower HbA1c are significantly associated with PAF detection. Controlling for age, obesity is an independent risk factor. A larger prospective study is warranted to confirm these findings. PMID- 29032887 TI - Virtual Simulation in Enhancing Procedural Training for Fluoroscopy-guided Lumbar Puncture: A Pilot Study. AB - RATIONALE AND OBJECTIVES: Fluoroscopy-guided lumbar puncture (FGLP) is a basic procedural component of radiology residency and neuroradiology fellowship training. Performance of the procedure with limited experience is associated with increased patient discomfort as well as increased radiation dose, puncture attempts, and complication rate. Simulation in health care is a developing field that has potential for enhancing procedural training. We demonstrate the design and utility of a virtual reality simulator for performing FGLP. MATERIALS AND METHODS: An FGLP module was developed on an ImmersiveTouch platform, which digitally reproduces the procedural environment with a hologram-like projection. From computed tomography datasets of healthy adult spines, we constructed a 3-D model of the lumbar spine and overlying soft tissues. We assigned different physical characteristics to each tissue type, which the user can experience through haptic feedback while advancing a virtual spinal needle. Virtual fluoroscopy as well as 3-D images can be obtained for procedural planning and guidance. The number of puncture attempts, the distance to the target, the number of fluoroscopic shots, and the approximate radiation dose can be calculated. Preliminary data from users who participated in the simulation were obtained in a postsimulation survey. RESULTS: All users found the simulation to be a realistic replication of the anatomy and procedure and would recommend to a colleague. On a scale of 1-5 (lowest to highest) rating the virtual simulator training overall, the mean score was 4.3 (range 3-5). CONCLUSIONS: We describe the design of a virtual reality simulator for performing FGLP and present the initial experience with this new technique. PMID- 29032888 TI - Calcium channel blockers for lung function improvement in asthma: A systematic review and meta-analysis. AB - BACKGROUND: For decades, calcium channel blockers (CCBs) have been believed to play a role in asthma treatment. However, the clinical efficacy of CCBs for lung function improvement in patients with asthma has not been qualitatively evaluated. OBJECTIVE: To assess the effect of CCBs vs placebo on lung function test results in adults with asthma. METHODS: Various databases were systematically searched to identify all randomized clinical trials with adults with asthma. We aimed to assess the influence of CCBs on forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), peak expiratory flow rate (PEFR), and provocative concentration of bronchoconstrictive agents causing a 20% decrease in FEV1 (PC20) compared with a placebo. All effect estimates were pooled by the generic inverse variance method with random-effects meta-analysis. Subgroup analysis, sensitivity analysis, and heterogeneity investigation were performed. RESULTS: Thirty eligible articles with 301 patients were included in this meta-analysis. Our results revealed that in a standard exercise test CCBs could produce a mean maximal percentage decrease in FEV1 of 11.56% (95% confidence interval, 8.97%-14.16%; P < .001) and an increase in postdose FEV1 by 80 mL (95% confidence interval, 0.02-0.15 mL; P = .01). However, there was no statistical significance for CCBs in postdose FVC, PEFR, or PC20 of histamine and methacholine. CONCLUSION: CCBs may be beneficial for lung function improvement in asthma, especially in exercise-induced asthma. However, there is a lack of evidence for CCBs protecting asthma patients from chemical irritation. PMID- 29032889 TI - Melting Ice and Boiling Water in the Mountains: A History and Physics Essay. PMID- 29032890 TI - [Identification of health outcome indicators in Primary Care. A review of systematic reviews]. AB - INTRODUCTION: Outcome measures are being widely used by health services to assess the quality of health care. It is important to have a battery of useful performance indicators with high validity and feasibility. Thus, the objective of this study is to perform a review of reviews in order to identify outcome indicators for use in Primary Care. METHODOLOGY: A review of systematic reviews (umbrella review) was carried out. The following databases were consulted: MedLine, EMBASE, and CINAHL, using descriptors and free terms, limiting searches to documents published in English or Spanish. In addition, a search was made for free terms in different web pages. Those reviews that offered indicators that could be used in the Primary Care environment were included. RESULTS: This review included a total of 5 reviews on performance indicators in Primary Care, which consisted of indicators in the following areas or clinical care processes: in osteoarthritis, chronicity, childhood asthma, clinical effectiveness, and prescription safety indicators. A total of 69 performance indicators were identified, with the percentage of performance indicators ranging from 0% to 92.8%. None of the reviews identified performed an analysis of the measurement control (feasibility or sensitivity to change of indicators). CONCLUSIONS: This paper offers a set of 69 performance indicators that have been identified and subsequently validated and prioritised by a panel of experts. PMID- 29032893 TI - Nystagmus due to ranitidine. PMID- 29032892 TI - Evaluation and management of skeletal disease in cancer care. AB - Recently, there have been considerable advancements in cancer therapies thereby prolonging the life of cancer survivors. However, these recent advancements present new challenges in the management of bone disease in cancer survivors. Bone acts as a fertile soil for cancer seeding and bone health is often compromised because of increased inflammatory cytokines in cancer, direct cancer metastasis and toxic effects of anti-cancer therapies. This effect is more pronounced in elderly population who already have compromised bone mineral density leading to increased skeletal related events and bone pain. Timely diagnosis and effective interventions are essential for reducing bone-related morbidity in cancer survivors. Also, a complex interdependence exists between cancer related bone disease and tumor growth, creating a vicious circle of extensive bone destruction and cancer progression. Hence, maintenance of bone health and integrity plays a pivotal role in comprehensive cancer care. The bone targeted treatments have been shown to preserve bone health, and modify the course of the underlying cancer. Management of long-term bone health requires a broad knowledge base that endocrinologists, oncologists and other care team members should be aware of. The manuscript highlights the skeletal effects of cancer, adjuvant therapies used for hormone-responsive cancers, chemotherapy induced bone loss and steps for accurate diagnosis and management of bone disease in cancer survivors by bridging the gaps in the comprehensive cancer care. PMID- 29032895 TI - Cardiac sympathetic denervation predicts PD in at-risk individuals. AB - INTRODUCTION: By the time a person develops the motor manifestations of Parkinson's disease (PD), substantial loss of nigrostriatal dopamine neurons has already occurred. There is great interest in identifying biomarkers that can detect pre-clinical PD. Braak's neuropathological staging concept imputes early autonomic involvement. Here we report results from a small prospective cohort study about the utility of neuroimaging evidence of cardiac sympathetic denervation in predicting PD among individuals with multiple PD risk factors. METHODS: Subjects provided information about family history of PD, olfactory dysfunction, dream enactment behavior, and orthostatic hypotension at a protocol specific website. From this pool, 27 people with at least 3 risk factors confirmed underwent cardiac 18F-dopamine positron emission tomographic scanning and were followed for at least 3 years. Interventricular septal and left ventricular free wall concentrations of 18F-dopamine-derived radioactivity were measured. RESULTS: Of the 27 subjects, 4 were diagnosed with PD within the 3-year follow-up period (Pre-Clinical PD group); 23 risk-matched (mean 3.2 risk factors) subjects remained disease-free (No-PD group). Compared to the No-PD group, the Pre-Clinical PD group had lower initial values for septal and free wall concentrations of 18F-dopamine-derived radioactivity (p = 0.0248, 0.0129). All 4 Pre-Clinical PD subjects had evidence of decreased cardiac sympathetic innervation in the interventricular septum or left ventricular free wall, in contrast with 3 of 23 (13%) No-PD subjects (p = 0.0020 by Fisher's exact test). CONCLUSION: People with multiple PD risk factors and diagnosed with PD within 3 years have evidence of antecedent cardiac sympathetic denervation. The findings fit with Braak's staging concept. PMID- 29032896 TI - Risk factors of ICU or high dependency requirements amongst hospitalized pediatric pertussis cases: A 10 year retrospective series, Singapore. AB - INTRODUCTION: Pertussis causes the highest complication rates and deaths in the infant group. Our study explored risk factors for ICU/high dependency (HD) admissions and intubation/non-invasive ventilation (NIV). METHODS: A retrospective review of pertussis admissions over 10 years from 2007 to 2016 was done at KK Women's and Children's Hospital, Singapore. To understand risk factors for severe pertussis infection, we compared cases requiring ICU/HD care with controls admitted to the general ward. Risk factors for intubation/NIV were also studied. Vaccine efficacy for protection against ICU/HD admission or intubation/NIV was also calculated. RESULTS: There were 200 pertussis patients with a median age of 2.75 months. Sixty-one % were <=3 months and 14.5% were <6 weeks old. Majority of patients (77%) had no prior pertussis vaccination. After removing 3 patients with missing vaccination records, 20 cases were compared with 177 controls. On univariate analysis, risk factors for ICU/HD admission comprised: Age <=3 months, contact history, underlying co-morbidity, prematurity, absent DTaP vaccination, lymphocytosis, hyperleukocytosis (wbc >=50*109/L), thrombocytosis (platelet >=500*109/L), and pneumonia. Multivariate analysis revealed that age <=3 months (OR 40, 95% CI 4.57-1111.11, p=.007), co-morbidity (OR 8.46 (95% CI 1.47-56.89, p=.019), pneumonia (OR 18.08, 95% CI 3.22-132.15, p=.002), white cell count (OR 1.07, 95% CI 1.01-1.14, p=.023) and cyanosis (OR 5.09, 95% CI 1.31-24.71, p=.026) were risk factors for ICU/HD admission. Prior DTaP vaccination had a vaccine effectiveness of 86.5% in preventing ICU/HD admission and 82.1% in preventing intubation/NIV. CONCLUSIONS: As the majority of pertussis patients were infants <=3 months old who are at high risk for ICU/HD admission and intubation/NIV, prevention is key to reducing pertussis morbidity. Even though not statistically significant, DTaP vaccination had a role in preventing ICU/HD admission and intubation/NIV. PMID- 29032894 TI - Atypical PKC, PKClambda/iota, activates beta-secretase and increases Abeta1-40/42 and phospho-tau in mouse brain and isolated neuronal cells, and may link hyperinsulinemia and other aPKC activators to development of pathological and memory abnormalities in Alzheimer's disease. AB - Hyperinsulinemia activates brain Akt and PKC-lambda/iota and increases Abeta1 40/42 and phospho-tau in insulin-resistant animals. Here, we examined underlying mechanisms in mice, neuronal cells, and mouse hippocampal slices. Like Abeta1 40/42, beta-secretase activity was increased in insulin-resistant mice and monkeys. In insulin-resistant mice, inhibition of hepatic PKC-lambda/iota sufficient to correct hepatic abnormalities and hyperinsulinemia simultaneously reversed increases in Akt, atypical protein kinase C (aPKC), beta-secretase, and Abeta1-40/42, and restored acute Akt activation. However, 2 aPKC inhibitors additionally blocked insulin's ability to activate brain PKC-lambda/iota and thereby increase beta-secretase and Abeta1-40/42. Furthermore, direct blockade of brain aPKC simultaneously corrected an impairment in novel object recognition in high-fat-fed insulin-resistant mice. In neuronal cells and/or mouse hippocampal slices, PKC-iota/lambda activation by insulin, metformin, or expression of constitutive PKC-iota provoked increases in beta-secretase, Abeta1-40/42, and phospho-thr-231-tau that were blocked by various PKC-lambda/iota inhibitors, but not by an Akt inhibitor. PKC-lambda/iota provokes increases in brain beta secretase, Abeta1-40/42, and phospho-thr-231-tau. Excessive signaling via PKC lambda/iota may link hyperinsulinemia and other PKC-lambda/iota activators to pathological and functional abnormalities in Alzheimer's disease. PMID- 29032898 TI - Estimating influenza vaccine effectiveness: Evolution of methods to better understand effects of confounding in older adults. AB - Older adults are at high risk for serious complications of influenza illness and loss of vaccine-mediated protection. It is increasingly recognized that in addition to age, multiple chronic conditions and associated frailty contribute to the decline in vaccine effectiveness in this population. However, observational studies have been fraught with issues of confounding related to the degree of frailty and functional decline, measures of which are not included in standard administrative health care databases that are used to calculate vaccine effectiveness. This issue has led to the identification of confounding by indication or from "healthy vaccinee" bias, which respectively lead to underestimates or overestimates of influenza vaccine effectiveness. In addition, the sensitivity and specificity of the criteria used to define influenza-like illness declines with increasing age due to atypical presentations of illness and the inability to distinguish between influenza and other respiratory viruses. The test-negative case:control design has emerged as a method to estimate influenza vaccine effectiveness by comparing vaccination rates in those with laboratory confirmed influenza to those with other acute viral respiratory illnesses. This review provides a perspective on how test-negative case:control study designs and new insights into mechanisms of protection have considerably strengthened influenza vaccination policy decisions for older adults that have historically been undermined by the conclusions of observational studies. PMID- 29032891 TI - Modulating the immune system through nanotechnology. AB - Nowadays, nanotechnology-based modulation of the immune system is presented as a cutting-edge strategy, which may lead to significant improvements in the treatment of severe diseases. In particular, efforts have been focused on the development of nanotechnology-based vaccines, which could be used for immunization or generation of tolerance. In this review, we highlight how different immune responses can be elicited by tuning nanosystems properties. In addition, we discuss specific formulation approaches designed for the development of anti-infectious and anti-autoimmune vaccines, as well as those intended to prevent the formation of antibodies against biologicals. PMID- 29032897 TI - Prevnar-13 vaccine failure in a mouse model for vitamin A deficiency. AB - Streptococcus pneumoniae (pneumococcus) is responsible for serious pediatric respiratory infections, and kills close to one million children under the age of five each year. Unfortunately, the Prevnar-13 vaccine (PCV-13) that is used to protect children from the serious consequences of pneumococcus infections is not always successful. Given that vitamin A deficiency (VAD) is known to affect children in both developed and developing countries, we asked if VAD could be responsible, at least in part, for PCV-13 vaccine failures. In a mouse model for VAD, we found that PCV-13 failed to elicit binding and neutralizing antibody activities. Unlike vaccinated, vitamin-replete animals, vaccinated VAD animals were not protected from lethal pneumococcus infections. Results suggest that children with VAD may be susceptible to serious pneumococcal infections even after having received the PCV-13 vaccine. PMID- 29032899 TI - Th1 epitope peptides induce protective immunity against Rickettsia rickettsii infection in C3H/HeN mice. AB - Rickettsia rickettsii is the causative pathogen of Rocky Mountain spotted fever (RMSF). Adr2, YbgF and OmpB are protective antigens of R. rickettsii. In this study, 90 candidate peptides were selected from these antigens based on their high-affinity binding capacity for the MHC class II molecule H2 I-A or H2 I-E using bioinformatic methods. Six peptides were determined using ELISPOT assay to be immunodominant based on the IFN-gamma recall responses of CD4+ T cells from mice immunized with R. rickettsii. Six nucleotide sequences encoding the immunodominant peptides were linked in series and inserted into a plasmid for expression in Escherichia coli cells, resulting in a new, recombinant polypeptide termed GWP. After immunization and challenge, the rickettsial load or histopathological lesions in the organs of mice immunized with GWP or pooled peptides was significantly lower than that in organs of mice immunized with PBS or the individual peptide OmpB399. An in vitro neutralization test revealed that sera from mice immunized with GWP, OmpB399, or pooled peptides reduced R. rickettsii adherence to, and invasion of, vascular endothelial cells. Furthermore, significantly higher levels of IgG, IgG1, or IgG2a were detected in sera from mice immunized with GWP or pooled peptides, and significantly higher levels of IFN-gamma or TNF-alpha secreted by CD4+ T cells from R. rickettsii infected mice were detected after immunization with GWP. Altogether, our results indicated that polypeptides, especially GWP, could induce a Th1-type immune response against R. rickettsii infection, which might contribute to the rational design of peptide-based vaccines for RMSF. PMID- 29032900 TI - In Silico Vaccine Strain Prediction for Human Influenza Viruses. AB - Vaccines preventing seasonal influenza infections save many lives every year; however, due to rapid viral evolution, they have to be updated frequently to remain effective. To identify appropriate vaccine strains, the World Health Organization (WHO) operates a global program that continually generates and interprets surveillance data. Over the past decade, sophisticated computational techniques, drawing from multiple theoretical disciplines, have been developed that predict viral lineages rising to predominance, assess their suitability as vaccine strains, link genetic to antigenic alterations, as well as integrate and visualize genetic, epidemiological, structural, and antigenic data. These could form the basis of an objective and reproducible vaccine strain-selection procedure utilizing the complex, large-scale data types from surveillance. To this end, computational techniques should already be incorporated into the vaccine-selection process in an independent, parallel track, and their performance continuously evaluated. PMID- 29032902 TI - Should We Have a Better Definition of Pseudoparalysis in Patients With Rotator Cuff Tears? AB - Pseudoparalysis has been previously described as the inability to elevate the arm over 90 degrees in the setting of a rotator cuff tear. Controversy exists regarding the optimal treatment for patients with a pseudoparalytic shoulder with a rotator cuff tear with options including rotator cuff repair and reverse shoulder arthroplasty. Recent literature suggests that pseudoparalysis can reliably be corrected with a rotator cuff repair and is more cost effective than reverse shoulder arthroplasty. We believe that the arbitrary cutoff of 90 degrees is too generous and leads to confusion. We believe that the definition of pseudoparalysis needs to be refined to clarify indications for treatment and not base a decision on a simple measurement without other factors considered. We suggest that pseudoparalysis as a description should include elevation limited to up to 45 degrees . The patient should also be described as having a chronic and essentially atraumatic onset of symptoms and the rotator cuff tear is massive with at least grade II to III fatty infiltration. Only with increasing precision and describing the actual patient situation and limitations will we be more able to correctly compare treatment alternatives. PMID- 29032901 TI - Bosworth and modified Phemister techniques revisited. A comparison of intraarticular vs extraarticular fixation methods in the treatment of acute Rockwood type III acromioclavicular dislocations. AB - OBJECTIVE: The aim of this study was to compare the long-term clinical and radiological results of Acromioclavicular (AC) fixation with K-wires (the modified Phemister procedure) and Coracoclavicular (CC) fixation with the Bosworth screw in the surgical treatment of Type 3 AC joint dislocations. METHODS: Thirty-two patients with complete set of medical records and who received surgical treatment between September 2005 and January 2009 due to acute Rockwood Type 3 AC joint dislocation and properly attended their follow-ups were retrospectively evaluated. Sixteen patients (13 males, 3 females; mean age: 38, range: 24-52 years) were treated with CC fixation with Bosworth screw (Group 1), and the other 16 (12 males, 4 females; mean age: 53.3, range: 38-64 years) with AC fixation using K-wires (Group 2). RESULTS: The mean follow-up time was 96 months for Group 1 and 93 months for Group 2 patients (p > 0.05). The mean Constant-Murley score at the final follow-up was 84.7 in Group 1 and 87.3 in Group 2 (p = 0.069). Radiological evaluation of the patients revealed AC arthrosis in 2 and 3 patients in Group 1 and 2, respectively. In Group 2, one patient had a recurrent dislocation, three patients had AC arthrosis and two patients had ossification in the CC ligament (Fig. 2). There was no superficial or deep wound infection in Group 1, while two patients from Group 2 had a superficial wound infection. CONCLUSIONS: Our results suggest that both techniques are reliable and provide adequate reduction and similar outcomes in terms of functionality and pain levels, following the reduction of Type 3 AC joint dislocations. With lower rates of wound site infection in the early and AC arthrosis in the late postoperative period, CC fixation method with the Bosworth screw may be a better surgical option than AC fixation method with K-wires. LEVEL OF EVIDENCE: Level III, Therapeutic study. PMID- 29032903 TI - Single-Shot Femoral Nerve Block Does Not Cause Long-Term Strength and Functional Deficits Following Anterior Cruciate Ligament Reconstruction. AB - PURPOSE: To determine if patients treated with a single-shot femoral nerve block have strength and functional deficits at 9-month follow-up. METHODS: Forty-three patients who underwent primary anterior cruciate ligament reconstructions were randomized to receive either a preoperative single-shot femoral nerve block or local infiltration anesthesia for primary pain control. All patients underwent a standardized comprehensive rehabilitation program postoperatively. Isokinetic strength and function was tested using a Biodex machine at 9 months or more postoperatively comparing the operative and nonoperative extremity. RESULTS: No significant difference in strength was found at an average of 10.6 months postoperatively (range, 9-15 months) between the femoral nerve block and control groups. In comparing strength deficits, we found no difference in slow isokinetic extension strength (22.4% vs 27.8%, P = .51), fast isokinetic extension strength (18.5% vs 12.5%, P = .41), slow isokinetic flexion strength (11.0% vs 15.1%, P = .55), and fast isokinetic flexion strength (8.2% vs 4.9%, P = .56) in the femoral nerve block versus control groups, respectively. In terms of functional outcomes, there also was no difference in deficits for single-leg hop distance (P = .12), timed single-leg hop (P = .74), and single-leg triple hop distance (P = .94). Maximal strength noted to be within 15% of the contralateral limb was achieved in 40% of patients and maximal function in 63% of patients at an average of 10.6 months postoperatively. A 13% complication rate was found in patients who received a femoral nerve block (1 with prolonged quadriceps inhibition and 2 with prolonged sensory disturbances). CONCLUSIONS: Our study found a 13% motor/sensory complication rate in patients who underwent femoral nerve block for pain control after anterior cruciate ligament reconstruction. Although these deficits may persist, they are not permanent and are not different when compared with controls at 9-month follow-up. However, maximal strength and function are not fully restored at normal return to play time and rehabilitation should continue long term to maximize recovery. LEVEL OF EVIDENCE: Level I, prospective randomized trial. PMID- 29032904 TI - Endovascular aortic sealing with Nellix reduces intraoperative radiation dose when compared to endovascular aortic repair. AB - OBJECTIVE: To analyze radiation exposure during endovascular aortic sealing (EVAS) in comparison with standard endovascular aortic repair (EVAR) in clinical practice. METHODS: From December 2013 to October 2016 (35 months), 60 patients were analyzed for intraoperative radiation exposure during EVAR: 30 consecutive patients (mean age, 73.10 years; 28 male) received EVAS (Nellix Endologix); within the same time frame, 30 patients were treated with standard EVAR (mean age, 71.87 years; 30 male). An indirect dose analysis was performed for both groups of patients, including effective dose and cumulative air kerma. Furthermore, fluoroscopy time (FT), dose area product, and time of procedure were included in the study. RESULTS: The effective dose was significantly reduced in the EVAS group (3.72 mSv) compared with the group treated with standard EVAR (6.8 mSv; P <= .001). The cumulative air kerma was also lowered in EVAS (67.65 mGy vs 139 mGy in EVAR; P <= .001). FT for the entire group was 13 minutes and was shorter (P < .001) for EVAS (9 minutes) in comparison with EVAR (19 minutes). The dose area product for the entire cohort was 16.95 Gy.cm2 and was lower during EVAS (12.4 Gy.cm2) than during EVAR (22.6 Gy.cm2; P < .001). The median operating time for the entire group was 123.5 minutes and was significantly shorter (P < .01) for EVAS (119 minutes vs EVAR at 132 minutes). The FT shows a significant correlation with the patient's weight (P = .022), body mass index (P = .004), and time of procedure (P = .005). CONCLUSIONS: EVAS is associated with a relevant decrease in indirect measured radiation dose and time of procedure compared with standard EVAR. A relevant reduction in dose during EVAS is highly likely to result in lower exposure to radiation for physicians and staff. Such a result would be highly advantageous and calls for further analysis. PMID- 29032905 TI - Analysis of wound healing time and wound-free period as outcomes after surgical and endovascular revascularization for critical lower limb ischemia. AB - BACKGROUND: Traditional end points, such as amputation-free survival, used to assess the clinical effectiveness of lower limb revascularization have shortcomings because they do not account independently for wound nonhealing and recurrence or patient survival. Wound healing process and maintenance of a wound free state after revascularization were not well-studied. The aim of this study was to elucidate the long-term clinical course of ischemic wounds after revascularization. We focused on initial wound healing process as well as the maintenance of a wound-free state after achievement of wound healing. We introduced a wound-free period (WFP; the period during which limbs maintained an ulcer-free state) and Wound Recurrence and Amputation-free Survival (WRAFS) as parameters and tested their effectiveness in evaluating clinical outcomes of limbs treated using endovascular therapy (EVT) and surgical revascularization. METHODS: The medical records of patients developing lower critical limb ischemia with tissue loss who underwent surgical or endovascular revascularization of the infrainguinal vessels between 2009 and 2013 were reviewed retrospectively. The risk factors for achieving wound healing and WRAFS were analyzed using Kaplan Meier survival curves and Cox regression model. Risk factors to prolong wound healing time (WHT) and reduce WFP were determined by the least squares method. RESULTS: In total, 233 patients underwent 278 limb revascularizations; 138 endovascular and 140 surgical procedures were performed as first treatments. The proportion of healed wounds 1, 2, and 3 years after primary revascularization was 64.0%, 69.7%, and 70.5%, respectively. Significant risk factors for wound healing were an EVT-first strategy (risk ratio [RR], 2.47), congestive heart failure (RR, 2.05), and wound, ischemia, and foot infection wound grade (RR, 1.59). The mean WHT was 143.7 days. An EVT-first strategy and wound infection contributed to significantly longer WHT. The mean WFP was 711.0 days. An EVT-first strategy, history of coronary artery disease, and dialysis dependence were associated with significantly shorter WFPs. WRAFS at 1 and 2 years after achievement of wound healing were 76.9% and 64.2%, respectively. Significant risk factors against WRAFS were a history of coronary artery disease (RR, 1.68), dialysis dependence (RR, 2.03), and being wheel chair bound (RR, 1.64). CONCLUSIONS: EVT revascularization was associated with longer WHT, reduced wound healing rate, and a shorter WFP compared with surgical revascularization. wound, ischemia, and foot infection grade was associated with longer WHT and reduced wound healing rate, but not associated with a shorter WFP. Systemic conditions such as dialysis dependence, congestive heart failure, and being wheel chair bound were associated with reduced wound healing rate and shorter WFP, presumably because they limited life expectancy. WHT and WFP are useful criteria for evaluating limb outcomes in patients with critical limb ischemia. PMID- 29032906 TI - Live-dead discrimination analysis, qPCR assessment for opportunistic pathogens, and population analysis at ozone wastewater treatment plants. AB - In respect to direct and indirect water reuse, the microbiological quality of treated wastewater is highly important. Conventional wastewater treatment plants are normally not equipped with advanced technologies for the elimination of bacteria. Molecular biology analyses were combined with live-dead discrimination analysis of wastewater population using Propidium monoazide (PMA) to study population shifts during ozonation (1 g ozone/g DOC) at a municipal wastewater treatment plant. Escherichia coli, enterococci, and Pseudomonas aeruginosa were quantified by polymerase chain reaction (qPCR) and the whole wastewater population was analyzed by metagenomic sequencing. The PMA-qPCR experiments showed that the abundances of P. aeruginosa didn't change by ozone treatment, whereas a reduction was observed for E. coli and enterococci. Results comparing conventional cultivation experiments with PMA-qPCR underlined the presence of viable but not culturable cells (VBNC) and their regrowth potential after ozone treatment. Illumina HiSeq sequencing results with and without PMA treatment demonstrated high population similarities in water samples originating from ozone inflow sampling sides. Upon using PMA treatment after ozonation, population shifts became visible and also underlined the importance of PMA treatment for the evaluation of elimination and selection processes during ozonation at WWTPs. Amongst a number of 14 most abundant genera identified in the inflow samples, 9 genera were found to be reduced, whereas 4 genera increased in relative abundance and 1 genus almost remained constant. The strongest increase in relative abundance after ozonation was detected for Oscillatoria spp., Microcoleus spp. and Nitrospira spp. Beside this, a continuous release of Pseudomonas spp. (including P. aeruginosa) to the downstream receiving body was confirmed. Regrowth experiments demonstrated a high prevalence of P. aeruginosa as part of the surviving bacterial population. Summing up, molecular biology analyses in combination with live-dead discrimination are comprehensive methods to evaluate the elimination processes targeting specific species and/or whole microbial populations. PMID- 29032907 TI - Pharmaceuticals in water, fish and osprey nestlings in Delaware River and Bay. AB - Exposure of wildlife to Active Pharmaceutical Ingredients (APIs) is likely to occur but studies of risk are limited. One exposure pathway that has received attention is trophic transfer of APIs in a water-fish-osprey food chain. Samples of water, fish plasma and osprey plasma were collected from Delaware River and Bay, and analyzed for 21 APIs. Only 2 of 21 analytes exceeded method detection limits in osprey plasma (acetaminophen and diclofenac) with plasma levels typically 2-3 orders of magnitude below human therapeutic concentrations (HTC). We built upon a screening level model used to predict osprey exposure to APIs in Chesapeake Bay and evaluated whether exposure levels could have been predicted in Delaware Bay had we just measured concentrations in water or fish. Use of surface water and BCFs did not predict API concentrations in fish well, likely due to fish movement patterns, and partitioning and bioaccumulation uncertainties associated with these ionizable chemicals. Input of highest measured API concentration in fish plasma combined with pharmacokinetic data accurately predicted that diclofenac and acetaminophen would be the APIs most likely detected in osprey plasma. For the majority of APIs modeled, levels were not predicted to exceed 1 ng/mL or method detection limits in osprey plasma. Based on the target analytes examined, there is little evidence that APIs represent a significant risk to ospreys nesting in Delaware Bay. If an API is present in fish orders of magnitude below HTC, sampling of fish-eating birds is unlikely to be necessary. However, several human pharmaceuticals accumulated in fish plasma within a recommended safety factor for HTC. It is now important to expand the scope of diet-based API exposure modeling to include alternative exposure pathways (e.g., uptake from landfills, dumps and wastewater treatment plants) and geographic locations (developing countries) where API contamination of the environment may represent greater risk. PMID- 29032908 TI - Mechanistic and kinetic study on the catalytic hydrolysis of COS in small clusters of sulfuric acid. AB - The catalytic hydrolysis of carbonyl sulfide (COS) and the effect of small clusters of H2O and H2SO4 have been studied by theoretical calculations. The addition of H2SO4 could increase the enthalpy change (DeltaH<0) and decrease relative energy of products (relative energy<0), resulting in hydrolysis reaction changed from an endothermic reaction to an exothermic reaction. Further, H2SO4 decreases the energy barrier by 5.25 kcal/mol, and it enhances the catalytic hydrolysis through the hydrogen transfer effect. The (COS + H2SO4-H2O) reaction has the lowest energy barrier of 29.97 kcal/mol. Although an excess addition of H2O and H2SO4 increases the energy barrier, decreases the catalytic hydrolysis, which is consistent with experimental observations. The order of the energy barriers for the three reactions from low to high are as follows: COS + H2SO4-H2O < COS + H2O + H2SO4-H2O < COS + H2O+(H2SO4)2. Kinetic simulations show that the addition of H2SO4 can increase the reaction rate constants. Consequently, adding an appropriate amount of sulfuric acid promotes the catalytic hydrolysis of COS both kinetically and thermodynamically. PMID- 29032909 TI - Subclinical Synovitis Measured by Ultrasound in Rheumatoid Arthritis Patients With Clinical Remission Induced by Synthetic and Biological Modifying Disease Drugs. AB - BACKGROUND: Rheumatoid arthritis (RA) patients with disease in clinical remission might show subclinical synovitis, which can be related to the progress of structural joint damage. OBJECTIVE: To determine and compare the degree of synovial inflammation by ultrasound (US) in patients with RA in clinical remission, treated with DMARD or combination therapy with DMARD and anti-TNF. METHODS: Hospital-based cross-sectional study of 58 patients with RA in sustained remission for at least 6 months by DAS28 <2.6, who attended the Rheumatology Service at the Hospital Universitario de Caracas. Patients underwent clinical, functional, and laboratory assessments. Ultrasound was performed in hands measuring synovial effusion, synovial hypertrophy and power Doppler signal; using a semiquantitative 4-point scale of 0=none to 3=severe. Chi-square and t-test were used to compare the clinical, functional, laboratory and US assessments between the DMARD (N=37) and combination therapy with DMARD and anti-TNF (N=21) groups. A p-value <0.05 was considered statistically significant. RESULTS: Out of 58 patients, 25.9% had remission by US and 74.1% had synovial effusion or hypertrophy or positive power Doppler signal. Non-significant differences in US synovitis between the two groups were found. CONCLUSIONS: Persistent US activity was evident in a high percentage of rheumatoid arthritis patients in clinical remission by DAS28. No differences in subclinical synovitis measured by US were found between patients with DMARD and anti-TNF-induced clinical remission. PMID- 29032910 TI - Venous thromboembolism after laparoscopic or robotic biliopancreatic diversion with duodenal switch. Ninety-days outcome of a 10 years' experience. AB - BACKGROUND: Venous thromboembolism (VTE) is a feared complication after bariatric surgery. Biliopancreatic diversion with duodenal switch (BPD-DS) is a complex bariatric procedure that is offered typically to super morbidly obese patients. Scarce data exist in reporting VTE outcome and identifying the risk factors associated with it after BPD-DS. OBJECTIVE: To determine the risk factors for VTE after BPD-DS at 90-day follow-up. SETTING: A nonprofit regional referral center and teaching hospital in Pennsylvania. METHODS: A retrospective chart review was performed on prospectively collected data over 10 years, between January 1, 2006 and December 31, 2016. Patients who underwent laparoscopic or robotic BPD-DS were included. Preoperative variables, selected risk factors, and methods of VTE prophylaxis were analyzed. RESULTS: A total of 662 patients who underwent BPD-DS were identified. The mean age was 44.7 +/- 10.4 (20-72) years; 474 patients were female (71.7%), and the mean body mass index of the cohort was 50.5 +/- 7.5 (34 98) kg/m2. Overall, 16 patients (2.4%) experienced VTE complication at 90-days follow-up post-BPD-DS with 100% follow-up rate; deep vein thrombosis was experienced by 10 patients (1.5%), and 6 patients (0.9%) experienced pulmonary embolism (1 patient experience both). None of those patients had a previous history of VTE. Only operative time (P value = .009) and length of stay (P value <= .001) were associated with VTE events. Other factors such as age, sex, body mass index, previous history of VTE, preoperative heparin injection, preoperative inferior vena cava filter insertion, intermittent compressive device use, interval heparin time, and postoperative chemical prophylaxis did not show a statistical association. A logistic regression analysis showed a statistically significant increase of VTE outcome with length of stay; odds ratio of 1.161, (95% confidence interval, 1.048-1.285), P value = .004. CONCLUSION: With proper preoperative evaluation and aggressive VTE prophylaxis protocol, the risk of VTE post-BPD-DS is comparable to other bariatric procedures. Every effort should be adopted to shorten the length of stay, and thus reduce VTE risk. PMID- 29032911 TI - Innervated full thickness grafts in distal finger amputations. AB - Innervated full thickness graft will be presented as an option to reconstruct a fingertip defect which might result in better sensibility than standard reconstruction using a full thickness graft without innervation. Also, anastomosing the nerve stumps can decrease the chance of developing neuroma. PMID- 29032912 TI - Experiences of civilian nurses in triage during the Iran-Iraq War: An oral history. AB - PURPOSE: Nurses played a critical role in performing triage during the Iran-Iraq War. However, their experiences in triage have not been discussed. Therefore, the current study aimed to investigate the triage experiences of civilian nurses during the Iran-Iraq War. METHODS: Oral history method and in-depth interviews were used to collect data to gain the nurses' experiences in triage. RESULTS: Four themes were extracted from the data, which were the development of triage, challenging environment to perform triage, development of mobile triage teams, and challenges of triage chemical victims for nurses. CONCLUSION: Triage is an important skill for nurses to manage critical situations such as disasters and wars. Nurses have to be competent in performing triage. Involvement in critical situations helps the nurses learn and gain more experience on how to manage unexpected events. PMID- 29032914 TI - Response to 'Re. Lesson Learned with the Use of Iliac Branch Devices: Single Centre 10 Year Experience in 157 Consecutive Procedures'. PMID- 29032913 TI - Extracorporeal Shockwave Therapy Plus Rehabilitation for Patients With Chronic Plantar Fasciitis Might Reduce Pain and Improve Function but Still Not Lead to Increased Activity: A Case-Series Study With Multiple Outcome Measures. AB - Plantar fasciitis is a common cause of plantar-aspect heel pain. Although many patients will improve, a proportion will have ongoing and sometimes debilitating symptoms. Evidence from randomized controlled trials has shown that extracorporeal shockwave therapy (ESWT) results in benefits in treating pain. However, uncertainties remain whether these benefits translate to improvements in overall function. The present prospective case series examined the results from 35 patients with chronic plantar fasciitis who had undergone a course of ESWT in addition to a graded rehabilitation program. Of the 35 subjects, 34% were male, and the median age was 50.9 years. The duration of symptoms before ESWT was 24 months. The results of the present case series demonstrated statistically significant improvements in measures of self-reported "average pain" from a median of 7.0 of 10 at baseline to 5.0 of 10 at 3 months (p < .001) and of "worst pain" from 9.0 of 10 at baseline to 7.0 of 10 at 3 months (p < .001). In addition, significant improvements were found in several validated patient-rated outcome measures of local foot/ankle function but not in overall markers of health, anxiety/depression scores, or activity levels, despite the improvements in pain. No statistically significant correlations were found between gender, age, or chronicity of symptoms and the improvements seen. No significant side effects occurred in the present study. The results of our series support the use of ESWT for patients with chronic plantar fasciitis for local pain symptoms; however, uncertainties remain regarding global benefits to health. PMID- 29032915 TI - Corrigendum to "Risk of Early Recurrent Stroke in Symptomatic Carotid Stenosis" [Eur J Vasc Endovasc Surg 49/2 (2015) 137-144]. PMID- 29032916 TI - Combination of magnesium sulphate and ropivacaine epidural analgesia for hip arthroplasty in dogs. AB - OBJECTIVE: The aim of this study was to determine whether lumbosacral epidural administration of magnesium sulphate added to ropivacaine prolongs and improves perioperative analgesia, without adverse effects on motor block duration or hind limb neurological function, in dogs undergoing hip arthroplasty. STUDY DESIGN: Investigator-blind, controlled, randomized, prospective clinical trial. ANIMALS: A group of 20 client-owned dogs undergoing hip arthroplasty were allocated randomly to either group C (control, 1 mg kg-1epidural ropivacaine) or group M (magnesium, epidural injection of 1 mg kg-1 ropivacaine and 2 mg kg-1magnesium sulphate). METHODS: All dogs were premedicated with intramuscular acepromazine. General anaesthesia was induced with propofol and maintained with isoflurane in oxygen. Intraoperatively, nociception was assessed based on changes in heart rate, respiratory rate and mean arterial pressure above baseline values. Postoperatively, pain was evaluated with a Sammarco pain score, a Glasgow pain scale and a visual analogue scale (VAS). Tarlov's scale was used to quantify motor block. All dogs were evaluated at recovery and then 1, 2, 3, 4, 5 and 24 hours after that. Rescue analgesia was provided during surgery with fentanyl and, postoperatively, with buprenorphine. Groups were compared using one-way repeated measure analysis of variance followed by the Holm-Sidak method for multiple comparison or nonparametric tests when appropriate. RESULTS: The two treatment groups did not differ (p > 0.05) with respect to intraoperative physiological variables, rescue analgesia, postoperative pain scores (Sammarco q = 1.00; Glasgow q = 3.10; VAS q = 0.50) and duration of the motor block (Tarlov's q = 2.40). CONCLUSIONS AND CLINICAL RELEVANCE: The addition of epidural magnesium to ropivacaine did not improve or prolong the analgesia provided by ropivacaine alone. Further studies are needed to determine whether an epidural magnesium dose of >2 mg kg-1 would exert better analgesia, without causing adverse effects, in dogs undergoing orthopaedic surgery. PMID- 29032917 TI - Differential Diagnosis of Pulmonary Artery Sarcoma and Central Chronic Pulmonary Thromboembolism Using CT and MR Images. AB - BACKGROUND: Clinical and imaging manifestations are similar in pulmonary artery sarcomas (PAS) and thromboembolic diseases, especially central chronic pulmonary thromboembolism (CPTE). The feasibility of utilising clinical imaging tools such as computed tomography (CT) and magnetic resonance imaging (MRI) for differential diagnosis of PAS and CPTE has not been fully explored, especially MRI. METHODS: Patients with PAS (n=18) and central CPTE (n=20) treated at our hospital between January 2013 and September 2016 were identified retrospectively. Computed tomography and MRI findings of pulmonary artery (PA) filling defects including the location, the involvement of pulmonary artery, morphology, signal intensities and enhancement in MRI, calcification, sizes of right atrium and ventricle, inner diameters of the pulmonary artery trunk and branches, and mediastinal collateral circulation in both groups were examined, and differences were analysed by Fisher exact test and independent sample t-test. RESULTS: Compared to those of central CPTE, PAS lesions were in full shape or expansive growth (p<0.001), and the proximal end of the tumours was often bulging or lobulated (p<0.001). These lesions were aneurysm- or grape-like distally (p<0.01) with inhomogeneous enhancement (p<0.001). The MRI contrast enhancement pattern of PAS lesions were cloudy with inhomogeneous delayed enhancement and the time-density curves for some of the lesions increased gradually. CONCLUSION: Computed tomographic and MR imaging manifestations may resemble PAS and central CPTE; however, some manifestations still have great value for the differential diagnosis of these two conditions, specifically the morphology and MRI enhancement patterns. PMID- 29032918 TI - Adults with 22q11.2 deletion syndrome have a different velopharyngeal anatomy with predisposition to velopharyngeal insufficiency. AB - AIM: To find out if subjects with 22q11.2 deletion syndrome (DS) have a different velopharyngeal anatomy which could cause velopharyngeal insufficiency (VPI). METHODS: A prospective study of 16 subjects >16 years of age with 22q11.2 DS, without overt cleft palate and without previous VPI surgery, and 48 healthy controls >18 years of age were included in the study. Speech was recorded and scored blindly by two independent senior speech therapists. All 64 individuals had MRI scans, which were analyzed blindly by a consultant radiologist. RESULTS: Subjects with 22q11.2 DS had a mild degree of weak pressure consonants (mean score); borderline to mild degree of hypernasality and audible nasal emission (mean score). All controls had normal speech. When comparing subjects (22q11.2 DS) to controls, we found the subjects to have the following: A shorter distance between left and right points of origin of the levator veli palatini muscle (LVP) (p < 0.0001); a more obtuse angle of origin of the LVP (bilaterally) (p < 0.009); a thinner LVP bilaterally and in the midline (p < 0.0001); a shorter LVP bilaterally (p < 0.0001); a shorter velum (p = 0.007); a larger osseous pharyngeal depth:velar length ratio (p = 0.01); a more obtuse anterior cranial base angle (nasion to sella to basion) (p < 0.0001) and posterior cranial base angle (sella to basion to foramen magnum) (p < 0.0001); a wider velopharyngeal width (p = 0.002) and a larger pharyngeal airway volume (p = 0.0007). CONCLUSION: Compared with healthy controls, adults with 22q11.2 DS showed a different velopharyngeal anatomy, which will make these individuals more prone to VPI. PMID- 29032919 TI - Write your first article, but .... PMID- 29032920 TI - Cell adhesion mechanosensitivity, an active biological process: Comment on "Cellular mechanosensing of the biophysical microenvironment: A review of the mathematical models of biophysical regulation of cell responses" by Bo Cheng et al. PMID- 29032921 TI - Treatment of contact lens related dry eye with antibacterial honey. AB - AIM: Contact lens induced dry eye affects approximately 50% of contact lens wearers. The aim was to assess the effects of Manuka (Leptospermum sp.) honey eye drops (Optimel, Melcare, Australia) on dry eye in contact lens wearers. The safety of the honey eye drops in contact lens wear and contact lens wearers' compliance were also evaluated. DESIGN: Prospective, randomised, cross over study, examiner masked, pilot treatment trial. METHODS: Twenty-four participants aged 20 to 55 years with contact lens related dry eye were recruited and randomised to two treatment groups; 20 completed the study. One group used Optimel eye drops twice a day for two weeks followed by conventional lubricant (Systane Ultra, Alcon) therapy for two weeks; the other group completed the treatments in the reverse order. Before and after each treatment dry eye symptomology, ocular surface inflammation, and tear quantity and quality were assessed. Participants completed a daily log detailing their usage of treatments and any issues. RESULTS: Dry eye symptoms improved significantly after Optimel treatment. Patients with more severe symptoms at baseline showed a greater improvement in symptoms. No significant differences were observed in the objective signs of dry eye; presumably because of the short treatment duration. Seventy-five% of contact lens wearers reported good adherence to Optimel treatment and 95% reported no issues using this product. CONCLUSIONS: Optimel Eye Drops reduce the symptoms of dry eye in contact lens wearers and are safe to use. A longer treatment period to assess the effect on clinical signs of dry eye is required. PMID- 29032922 TI - Serotonin transporter density in binge eating disorder and pathological gambling: A PET study with [11C]MADAM. AB - Behavioral addictions, such as pathological gambling (PG) and binge eating disorder (BED), appear to be associated with specific changes in brain dopamine and opioid function, but the role of other neurotransmitter systems is less clear. Given the crucial role of serotonin in a number of psychiatric disorders, we aimed to compare brain serotonergic function among individuals with BED, PG and healthy controls. Seven BED patients, 13 PG patients and 16 healthy controls were scanned with high-resolution positron emission tomography (PET) using the serotonin transporter (SERT) tracer [11C]MADAM. Both region-of-interest and voxel wise whole brain analyses were performed. Patients with BED showed increased SERT binding in the parieto-occipital cortical regions compared to both PG and healthy controls, with parallel decreases in binding in the nucleus accumbens, inferior temporal gyrus and lateral orbitofrontal cortex. No differences between PG patients and controls were observed. None of the subjects were on SSRI medications at the time of imaging, and there were no differences in the level of depression between PG and BED patients. The results highlight differences in brain SERT binding between individuals with BED and PG and provide further evidence of different neurobiological underpinnings in behavioral addictions that are unrelated to the co-existing mood disorder. The results aid in the conceptualization of behavioral addictions by characterizing the underlying serotonin changes and provide a framework for additional studies to examine syndrome-specific pharmaceutical treatments. PMID- 29032923 TI - Is it necessary to dissect the posterior lymph nodes along the splenic vessels during total gastrectomy with D2 lymphadenectomy for advanced gastric cancer? AB - BACKGROUND: D2 lymphadenectomy including No.10 lymph nodes (LNs) is the standard procedure for treating advanced gastric cancer (AGC) via total gastrectomy. However, there was no research focusing on the posterior LN dissection along the splenic vessels (No.10p LNs). This study is performed to assess the effect of dissecting No.10p LNs. METHODS: We analyzed 404 consecutive gastric cancer patients who underwent laparoscopic total gastrectomy (LTG) with D2 lymphadenectomy. There were 68 patients with No.10p LN dissection (No.10p group), and 336 patients without No.10p LN dissection (nNo.10p group). The surgical outcomes are compared. RESULTS: No.10p LN dissection was preferentially performed in patients who were younger and had a lower BMI, concentrated and single branched type of splenic artery, and pancreatic tail near the lower pole of the spleen. The time for No.10 LN dissection and the number of No.10 LNs were greater in the No.10p group than in the nNo.10p group. There was no No.10p LNs metastasis, and the numbers of positive No.10 LNs were similar between the two groups. The morbidity and mortality rates of the No.10p group were comparable to those of the nNo.10p group. The overall survival (OS) rates of the two groups were not significantly different (P > 0.05). CONCLUSIONS: Although No.10p LN dissection might retrieve more No.10 LNs, operation times were longer, and the number of positive No.10 LNs and the OS rate were not improved. It might be no necessary to dissect No.10p LNs during total gastrectomy with D2 lymphadenectomy for AGC. PMID- 29032925 TI - Current status of the etiology of candidiasis in Mexico. AB - This study presents a systematic review of the literature on the etiology of superficial and invasive candidiasis in Mexico reported from 2005 to 2015. The data have shown that Candida albicans is the most prevalent species with an increasing tendency of the non-C. albicans Candida species, as reported in other countries. The use of phenotypical methods in the identification of the yeasts limits the identification at the species level, particularly in species that are part of complexes, this is important because the identification only at the genus level leads to inadequate treatment due to the different susceptibility to the antifungals among species. In addition, this finding reveals the need to implement in clinical laboratories the molecular methods for the correct identification of the species involved, and the antifungal susceptibility tests to prevent the etiological changes associated with a poor therapeutic management. PMID- 29032926 TI - Message from an Urgent Care PrEP Provider for Health Care Professionals. PMID- 29032927 TI - Mortality from systemic erythematosus lupus in Brazil: evaluation of causes according to the government health database. AB - OBJECTIVE: To characterize the causes of mortality in patients with systemic lupus erythematosus (SLE) in Brazil between 2002 and 2011. METHODS: An exploratory ecological study of a time series using data from the Mortality Information System of DATASUS, the Department of the Unified Health System (Brazil's National Health System). RESULTS: Brazil's SLE mortality rate was 4.76 deaths/105 inhabitants. The mortality rate was higher in the Midwest, North and Southeast regions than in the country as a whole. There were 6.3% fewer and 4.2% more deaths than expected in the Northeast and Southeast regions, respectively. The mean age at death was 40.7+/-18 years, and 45.61% of deaths occurred between the ages of 20 and 39. Incidence was highest in women (90.7%) and whites (49.2%). Disorders of the musculoskeletal system and connective tissue were mentioned as an underlying cause of death in 77.5% of cases, and diseases of the circulatory system and infectious and parasitic diseases were also noted in fewer cases. SLE was mentioned as an underlying cause of death in 77% of cases, with no difference between the Brazilian regions (p=0.2058). The main SLE-related causes of death were, sequentially, diseases of the respiratory and circulatory systems and infectious and parasitic diseases. CONCLUSIONS: This study identified a need for greater control of risk factors for cardiovascular diseases and a better understanding of the pathogenesis of atherosclerosis in SLE. Infectious causes are still frequent, and management should be improved, especially in the early stages of the disease. PMID- 29032928 TI - Clinical heterogeneity in Andersen-Tawil syndrome. PMID- 29032929 TI - Binding of triazole-linked galactosyl arylsulfonamides to galectin-3 affects Trypanosoma cruzi cell invasion. AB - The synthesis of the O-3 triazole-linked galactosyl arylsulfonamides 1-7 as potential inhibitors of Trypanosoma cruzi cell invasion is described. These target compounds were synthesized by Cu(I)-catalysed azide-alkyne cycloaddition reaction ('click chemistry') between different azide arylsulfonamides and the alkyne-based sugar 3-O-propynyl-betaGalOMe. Inhibition assays of T. cruzi cell invasion with compounds 1-7 showed reduced values of infection index (~20) for compounds 3 and 5, bearing the corresponding 5-methylisoxazole and 2,4 dimethoxypyrimidine groups, which also presented higher binding affinities to galectin-3 (EC50 17-18 MUM) in Corning Epic label-free assays. In agreement with experimental results, the assessment of the theoretical binding of compounds 1-7 to galectin-3 by MM/PBSA method displayed higher affinities for compounds 3 (-9.7 kcal/mol) and 5 (-11.1 kcal/mol). Overall, these achievements highlight compounds 3 and 5 as potential T. cruzi cell invasion blockers by means of a galectin-3 binding-related mechanism, revealing galectin-3 as an important host target for design of novel anti-trypanosomal agents. PMID- 29032924 TI - Epidemiology of rare cancers and inequalities in oncologic outcomes. AB - Rare cancers epidemiology is better known compared to the other rare diseases. Thanks to the long history of the European population-based cancer registries and to the EUROCARE huge database, the burden of rare cancers has been estimated the European (EU28) population. A considerable fraction of all cancers is represented by rare cancers (24%). They are a heterogeneous group of diseases, but they share similar problems: uncertainty of diagnosis, lack of therapies, poor research opportunities, difficulties in clinical trials, lack of expertise and of centres of reference. This paper analyses the major epidemiological indicators of frequency (incidence and prevalence) and outcome (5-year survival) of all rare cancers combined and of selected rare cancers that will be in depth treated in this monographic issue. Source of the results is the RARECAREnet search tool, a database publicly available. Disparities both in incidence and survival, and consequently in prevalence of rare cancers were reported across European countries. Major differences were shown in outcome: 5-year relative survival for all rare cancers together, adjusted by age and case-mix, varied from 55% or more (Italy, Germany, Belgium and Iceland) and less than 40% (Bulgaria, Lithuania and Slovakia). Similarly, for all the analyzed rare cancers, a large survival gap was observed between the Eastern and the Nordic and Central European regions. Dramatic geographical variations were assessed for curable cancers like testicular and non epithelial ovarian cancers. Geographical difference in the annual age-adjusted incidence rates for all rare cancers together varied between >140 per 100,000 (Italy, Scotland, France, Germany, and Switzerland) and <100 (Finland, Portugal, Malta, and Poland). Prevalence, the major indicator of public health resources needs, was about 7-8 times larger than incidence. Most of rare cancers require complex surgical treatment, thus a multidisciplinary approach is essential and treatment should be provided in centres of expertise and/or in networks including expert centres. Networking is the most appropriate answer to the issues pertaining to rare cancers. Actually, in Europe, an opportunity to improve outcome and reduce disparities is provided by the creation of the European Reference Networks for rare diseases (ERNs). The Joint Action of rare cancers (JARC) is a major European initiative aimed to support the mission of the ERNs. The role of population based cancer registries still remains crucial to describe rare cancers management and outcome in the real word and to evaluate progresses made at the country and at the European level. PMID- 29032930 TI - 3'-Hydroxy-3,4'-dimethoxyflavone blocks tubulin polymerization and is a potent apoptotic inducer in human SK-MEL-1 melanoma cells. AB - Flavonoids are naturally occurring polyphenolic compounds and are among the most promising anticancer agents. A series of flavonols and their 3-methyl ether derivatives were synthesized and assessed for cytotoxicity. It was found that 3' hydroxy-3,4'-dimethoxyflavone (flavonoid 7a) displayed strong cytotoxicity against human SK-MEL-1 melanoma cells and blocked tubulin polymerization, but had no significant cytotoxic effects against quiescent or proliferating human peripheral blood mononuclear cells. Our analyses showed that flavonoid 7a induces G2-M cell cycle arrest and apoptosis in melanoma cells which is associated with cytochrome c release and activation of both extrinsic and intrinsic apoptotic pathways of cell death. PMID- 29032931 TI - Synthesis of novel 1,2,5-oxadiazoles and evaluation of action against Acinetobacter baumannii. AB - With multidrug resistant bacteria on the rise, novel antibiotics are becoming highly sought after. In 2008, eleven compounds were identified by high throughput screening as inhibitors of BasE, a key enzyme of the non-ribosomal peptide synthetase pathway found in Acinetobacter baumannii. Herein, we describe the preparation of four structurally similar heterocyclic lead compounds from that study, including one 1,2,5-oxadiazole. A further library of 30 analogues containing the oxadiazole moiety was then generated. All compounds were screened against Acinetobacter baumannii and their minimum inhibitory concentration data is reported, with (E)-3-(2-hydroxyphenyl)-N-(4-methyl-1,2,5-oxadiazol-3 yl)acrylamide 32 found to have an MIC of 0.5mM. This work provides the foundation for further investigation of 1,2,5-oxadizoles as novel inhibitors of A. baumannii. PMID- 29032932 TI - MY APPROACH to the elderly patient with resistant hypertension. PMID- 29032933 TI - MY APPROACH to the Athlete With Wolff-Parkinson-White Syndrome (WPW). PMID- 29032934 TI - MY APPROACH to the patient with left main disease. PMID- 29032935 TI - MY APPROACH to the patient with heart failure and improved ejection fraction*. PMID- 29032936 TI - Editorial commentary: Percutaneous edge-to-edge mitral valve repair with Mitraclip: State of the art and new perspectives. PMID- 29032937 TI - Challenges and Opportunities to Scale Up Cardiovascular Disease Secondary Prevention in Latin America and the Caribbean. PMID- 29032938 TI - The JAK/STAT signaling pathway and photobiomodulation in chronic wound healing. AB - Wound healing is a physiological process that occurs in overlapping phases namely hemostasis, inflammation, proliferation, and remodeling. Chronic wounds fail to proceed through these reparative processes to achieve the functional integrity within the expected time. Wound healing relies upon growth factors and cytokines for the precise and accurate regulation of cellular responses. These are achieved through the use of complex growth factor/cytokine induced signaling pathways. The Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway transmits extracellular signals to the nucleus for the transcription of genes involved in proliferation and differentiation, to name but a few. Photobiomodulation (PBM) is an emerging area of interest within the scientific community and researchers are currently exploring its underlying mechanism and the associated signaling pathways involved. PBM is a light based therapy making use of low powered lasers or light emitting diodes (LEDs) to enhance tissue repair, and reduce pain and inflammation. Current conventional treatments for chronic wounds are frequently associated with failure and have limited therapeutic efficacy. Thus there is a need for efficient wound healing interventions and the identification and development of new treatments is required. In this review we summarize the involvement of JAK/STAT signaling and PBM in chronic wounds. PMID- 29032939 TI - Reply. PMID- 29032940 TI - Molecular basis of alpha-thalassemia. AB - alpha-Thalassemia is an inherited, autosomal recessive, disorder characterized by a microcytic hypochromic anemia. It is one of the most common monogenic gene disorders in the world population. The clinical severity varies from almost asymptomatic, to mild microcytic hypochromic, and to a lethal hemolytic condition, called Hb Bart's Hydrops Foetalis Syndrome. The molecular basis are usually deletions and less frequently, point mutations affecting the expression of one or more of the duplicated alpha-genes. The clinical variation and increase in disease severity is directly related to the decreased expression of one, two, three or four copies of the alpha-globin genes. Deletions and point mutations in the alpha-globin genes and their regulatory elements have been studied extensively in carriers and patients and these studies have given insight into the alpha-globin genes are regulated. By looking at naturally occurring deletions and point mutations, our knowledge of globin-gene regulation and expression will continue to increase and will lead to new targets of therapy. PMID- 29032941 TI - Ferritin iron regulators, PCBP1 and NCOA4, respond to cellular iron status in developing red cells. AB - Developing red blood cells exhibit multiple, redundant systems for regulating and coordinating the uptake of iron, the synthesis of heme, and the formation of hemoglobin during terminal differentiation. We recently described the roles of poly rC-binding protein (PCBP1) and nuclear coactivator 4 (NCOA4) in mediating the flux of iron through ferritin in developing erythroid cells, with PCBP1, an iron chaperone, delivering iron to ferritin and NCOA4, an autophagic cargo receptor, directing ferritin to the lysosome for degradation and iron release. Ferritin iron flux is critical, as mice lacking these factors develop microcytic anemia. Here we report that these processes are regulated by cellular iron levels in a murine model of ex vivo terminal differentiation. PCBP1 delivers iron to ferritin via a direct protein-protein interaction. This interaction is developmentally regulated, enhanced by iron deprivation, and inhibited by iron excess, both in developing cells and in vitro. NCOA4 activity also exhibited developmental regulation and regulation by cellular iron levels. Excess iron uptake during differentiation triggered lysosomal degradation of NCOA4, which was dependent on the E3 ubiquitin ligase HERC2. Thus, developing red blood cells express a series of proteins that both mediate and regulate the flux of iron to the mitochondria. PMID- 29032942 TI - Aspartate aminotransferase-to-platelet ratio predicts response to transarterial chemoembolisation and prognosis in hepatocellular carcinoma patients. AB - AIM: To evaluate the value of the aspartate aminotransferase-to-platelet ratio index (APRI) for hepatocellular carcinoma (HCC) patients who underwent transarterial chemoembolisation (TACE). MATERIALS AND METHODS: A total of 315 patients were enrolled, who were randomly divided into the training cohort (n=158) and the validation cohort (n=157). The optimal cut-off value of the APRI was determined using the X-tile software in the training cohort, and was validated in the validation cohort. Several serum-based markers, neutrophil-to lymphocyte (N/L) and aspartate aminotransferase-to-alanine aminotransferase (AST/ALT) ratios were included to compare with the APRI. To predict individual survival rate, independent predictors were included to build a nomogram. RESULTS: Using the X-tile, a cut-off value of the APRI as 0.40 was yielded to distinguish patients with distinct outcomes in the training cohort, but failed for the N/L and ALT/AST ratios. In the training cohort, 66 patients with high APRI had poorer survival (p<0.001) than did 92 patients with low APRI. Using the same cut-off value of APRI, 61 patients with high APRI had poorer survival (p<0.001) than did 96 patients with low APRI in the validation cohort. Furthermore, a nomogram, including the APRI, TACE cycles, tumour size, and tumour number, was built based on the training cohort, and validated well in the validation cohort (concordance index [C-index] 0.713). CONCLUSION: The APRI is a promising marker to predict treatment response and outcome for HCC patients after TACE treatment. PMID- 29032943 TI - Assessing the validity of oscillometric device for blood pressure measurement in a large population-based epidemiologic study. AB - To evaluate the accuracy of the Omron HBP-1300, an automatic device for blood pressure (BP) measurement, compared with the standard auscultatory method with a mercury sphygmomanometer, we conducted a large population-based survey. From 2012 to 2015, a total of 500,000 participants were randomly selected from the 262 urban cities and rural counties in China, of them BP was measured three times simultaneously with mercury sphygmomanometer and Omron HBP-1300 in 37,816 participants. Bias was estimated as the average of the auscultatory measurements minus the average of the oscillometric measurements, with its corresponding 95% limits of agreement. The Association for the Advancement of Medical Instrumentation standards and British Hypertension Society protocols were used to evaluate the accuracy of the oscillometric device. The results showed that the Omron underestimated systolic BP by 1.0 mm Hg (95% limits of agreement: -9.2, 11.2) and underestimated diastolic BP by 0.2 mm Hg (95% limits of agreement: 8.5, 8.1). The bias in systolic BP values was related to heart rate, systolic BP, and pulse pressure level, while the bias in diastolic BP was related to the heart rate and pulse pressure level. Omron HBP-1300 passed the Association for the Advancement of Medical Instrumentation standards and British Hypertension Society protocol requirements. The sensitivity and specificity of the Omron HBP-1300 to detect hypertension were 86.2% and 98.0%, respectively. Our results showed that the Omron HBP-1300 could be used for measuring BP in large epidemiology studies. The bias of BP measurement was related to the age, systolic BP, and pulse pressure level. PMID- 29032944 TI - [Observational study of outpatient unit duration of stay depending on the route of administration (intravenous vs subcutaneous) for a targeted therapy]. AB - New routes of administration available for some targeted therapies, especially subcutaneous injections, have an impact not only on the patients' daycare experience, but also on the unit's organization. This observational study conducted on 48 voluntary patients at the Institut universitaire du cancer Toulouse-Oncopole shows that the mean duration of the outpatient unit stay is diminished by one hour when a subcutaneous injection is used instead of an intravenous route. This duration decrease is mainly caused by an 82% average reduction in treatment duration. However, the waiting times before and after the treatment itself are not significantly impacted. Organizational methods related to the treatment prescription and preparation remain indeed the same. Anticipated prescription is not noticeably impacted either. This reduction of the duration of stay will truly be obtained if the whole unit's organization is adapted. PMID- 29032945 TI - Contraception options: Aspects unique to adolescent and young adult. AB - Sexual health for adolescents is based on three components: recognizing sexual rights, sexuality education and counseling, and thirdly confidential high quality services. Contraception needs to include prevention of both STIs and pregnancies. The first option for adolescents is condoms backed-up by emergency contraception; and later hormonal contraceptives in a longer, mutually monogamous relationship. Condoms and hormonal contraception together can be well recommended for adolescents for dual protection. Long acting reversible contraception (LARC) including both intrauterine contraception and implants are safe and highly effective and thus well suited for adolescents. Improved contraceptive methods do not automatically lead to reduced numbers of adolescent abortions. When sexuality education, proper counseling and sexual health services are all provided, it is possible to profoundly improve adolescent sexual health. PMID- 29032946 TI - Uterine Artery Embolization for the Treatment of Adenomyosis: A Systematic Review and Meta-Analysis. AB - The effect of uterine artery embolization (UAE) on symptomatic adenomyosis was evaluated in a systematic review and meta-analysis. Four groups were evaluated: short-term (< 12 months) pure adenomyosis, short-term adenomyosis with fibroids (combined adenomyosis), long-term (> 12 months) pure adenomyosis, and long-term combined adenomyosis. Improvement of symptoms occurred in 83.1% (872/1,049) of patients. Reported symptom reduction was 4.8% greater in the short-term combined group (P = .169) and 11.4% greater in the long-term combined group (P = .003). Uterine volume was reduced in all patients at 3 months. The effects of UAE on symptom improvement and uterine volume reduction in patients with adenomyosis are encouraging. PMID- 29032947 TI - Temporal distribution of alcohol related facial fractures. AB - OBJECTIVES: This study aimed to address 2 important aspects of temporal pattern in alcohol-related facial fractures: (1) comparison of temporal pattern of alcohol-related facial fracture (alcohol group) presentation with non-alcohol related fracture (non-alcohol group) presentation; (2) temporal pattern of patient demographic characteristics, injury characteristics, and surgical management in the alcohol group presentation. STUDY DESIGN: This study retrospectively examined the Victorian admitted episodes data set (VAED) for the years 2010 to 2013. VAED is a standardized set of data collected during all hospital presentations in Victoria. RESULTS: The study found higher incidence of alcohol-related facial fracture presentations during weekends and during the summer and spring months compared with non-alcohol-related fractures (statistically significant). Alcohol-related facial fractures are more likely to involve male patients in the 20- to 29-year age group, occur as a result of interpersonal violence, and require shorter hospital stays during weekend admissions (statistically significant). No statistically significant relationship has been observed in seasonal variation across all variables. CONCLUSIONS: This study found distinct characteristics in temporal distribution of alcohol-related facial fractures. These characteristics are, in particular, significant in weekend trauma admissions. Such information is important in workforce planning, resource distribution, and implementation of injury prevention programs. PMID- 29032948 TI - Anxiety and pain related to mandibular block injections: comparison of self reported measures and physiological response. AB - OBJECTIVE: The aim of this study was to determine whether patients with a pain score >=7 (high pain group) after a mandibular block injection had a higher physiologic response compared with patients with scores <7 (low pain group). STUDY DESIGN: Before oral surgery, patients (n = 66) filled out questionnaires to measure anxiety and expected pain. The questionnaires also assessed patients' experiences with dental injections and dental anxiety, as well as their emotional state and intensity of anxiety. Before, during, and after the injection, physiologic responses were measured by using Nexus-10. Patients were then asked about the pain and anxiety they had experienced. RESULTS: The mean score for pain experienced was 3.45 (standard deviation 2.17) on an 11-point rating scale. Eight patients (12.1%) experienced high injection pain. There was a significant increase in mean sweat secretion and a significant decrease in mean respiration between the relaxing phase and the injection phase. There was a significant positive relationship between experienced anxiety and mean heart rate during the injection phase. No significant difference in physiologic response was found between patients who experienced high pain and those who experienced low pain. CONCLUSIONS: Reported pain was not associated with the physiologic response of patients receiving mandibular block injections. PMID- 29032949 TI - Correction of hyperleucinemia in MSUD patients on leucine-free dietary therapy. AB - PURPOSE: Maple Syrup Urine Disease (MSUD) is a rare disorder of branched-chain amino acid catabolism associated with encephalopathy from accumulation of leucine. Leucine is closely monitored during normal growth and particularly during acute illness. As most hospitals do not have access to rapid plasma amino acid quantification, the initial management is often empirical. A model describing the reduction of plasma leucine in hyperleucinemic patients on leucine free formula would help to guide management and optimize testing frequency. METHODS: We retrospectively reviewed charts from 15 MSUD patients comprising 29 episodes of hyperleucinemia that were managed with leucine-free formula. Episodes were categorized by clinical presentation. RESULTS: Upon leucine restriction, plasma leucine concentrations fell exponentially at a rate proportional to approximately 50% of the starting value over each 24-hour period. Recovery appears to be sensitive to clinical status and triggering event of the hyperleucinemic episode. Patients with upper respiratory infections generally recovered slowly, while cases of dietary non-adherence resolved more quickly. CONCLUSION: This general model may help anticipate leucine levels during clinical management of MSUD patients when using nutritional support and leucine-free formula. The response of individual patients may vary depending on clinical status and triggering factors. PMID- 29032951 TI - Special Section: Review articles on decision making and patient education interventions. PMID- 29032950 TI - Trajectories of fasting plasma glucose variability and mortality in type 2 diabetes. AB - AIM: To investigate the effect of changes in fasting plasma glucose (FPG) variability, as assessed by 2-year trajectories of FPG variability, on mortality risk in patients with type 2 diabetes (T2D). METHODS: From 2009 to 2012, outpatients with T2D, aged>18 years, were enrolled from a medical centre. FPG was measured every 3 months for 2 years in 3569 people. For each of the eight 3-month intervals, FPG variability and means were calculated, with variability defined as the coefficient of variation of FPG. Also, trajectories of FPG variability and means were determined separately, using group-based trajectory analysis with latent class growth models. These models were fitted using the SAS Proc Traj procedure. The primary outcome was all-cause mortality, which was followed-up to the end of 2014. RESULTS: Five distinct trajectories of FPG variability (low, increasing, fluctuating, decreasing and high) and means (well controlled, stable control, worsening control, improving control and poor control) were established. The five trajectories of mean FPG were all associated with the same mortality risk. In contrast, in comparison to the low FPG variability trajectory, the fluctuating, decreasing and high variability trajectories all had significantly higher risks of mortality, with respective hazards ratios of 2.63 (95% CI: 1.40 4.93; P=0.003), 2.78 (95% CI: 1.33-5.80; P=0.007) and 4.44 (95% CI: 1.78-11.06; P=0.001) after multivariable adjustment. CONCLUSION: Changes in FPG variability were independently associated with increased mortality risk in patients with T2D. PMID- 29032952 TI - Corrigendum to "Protocols for the analytical characterization of therapeutic monoclonal antibodies. I-Non-denaturing chromatographic techniques" [J. Chromatogr. B 1058 (2017) 73-84]. PMID- 29032953 TI - Abolishment of proximal tubule albumin endocytosis does not affect plasma albumin during nephrotic syndrome in mice. AB - The megalin/cubilin receptor complex is required for proximal tubular endocytosis and degradation of filtered albumin. An additional high-capacity retrieval pathway of intact albumin for the recovery of large amounts of filtered albumin has been proposed, possibly involving cooperation between megalin/cubilin and the neonatal Fc receptor. To clarify the potential role of such a pathway, we examined the effects of megalin/cubilin gene inactivation on tubular albumin uptake and plasma albumin levels in nephrotic, podocin knockout mice. Immunofluorescence microscopy of megalin/cubilin/podocin knockout mouse kidneys demonstrated abolishment of proximal tubule albumin uptake, in contrast to the excessive albumin accumulation observed in podocin knockout mice compared to controls. Correspondingly, urinary albumin excretion was increased 1.4 fold in megalin/cubilin/podocin compared to podocin knockout mice (albumin/creatinine: 226 vs. 157 mg/mg). However, no difference in plasma albumin levels was observed between megalin/cubilin/podocin and podocin knockout mice, as both were reduced to approximately 40% of controls. There were no differences in liver albumin synthesis by mRNA levels and protein abundance. Thus, megalin/cubilin knockout efficiently blocks proximal tubular albumin uptake in nephrotic mice but plasma albumin levels did not differ as a result of megalin/cubilin-deficiency, suggesting no significance of the megalin/cubilin-pathway for albumin homeostasis by retrieval of intact albumin. PMID- 29032954 TI - Coronary flow reserve is predictive of the risk of cardiovascular death regardless of chronic kidney disease stage. AB - Microvascular rarefaction is found in experimental uremia, but data from patients with chronic kidney disease (CKD) are limited. We therefore quantified absolute myocardial blood flow and coronary flow reserve (the ratio of peak to resting flow) from myocardial perfusion positron emission tomography scans at a single institution. Individuals were classified into standard CKD categories based on the estimated glomerular filtration rate. Associations of coronary flow reserve with CKD stage and cardiovascular mortality were analyzed in models adjusted for cardiovascular risk factors. The coronary flow reserve was significantly associated with CKD stage, declining in early CKD, but it did not differ significantly among individuals with stage 4, 5, and dialysis-dependent CKD. Flow reserve with preserved kidney function was 2.01, 2.06 in stage 1 CKD, 1.91 in stage 2, 1.68 in stage 3, 1.54 in stage 4, 1.66 in stage 5, and 1.55 in dialysis dependent CKD. Coronary flow reserve was significantly associated with cardiovascular mortality in adjusted models (hazard ratio 0.76, 95% confidence interval: 0.63-0.92 per tertile of coronary flow reserve) without evidence of effect modification by CKD. Thus, coronary flow reserve is strongly associated with cardiovascular risk regardless of CKD severity and is low in early stage CKD without further decrement in stage 5 or dialysis-dependent CKD. This suggests that CKD physiology rather than the effects of dialysis is the primary driver of microvascular disease. Our findings highlight the potential contribution of microvascular dysfunction to cardiovascular risk in CKD and the need to define mechanisms linking low coronary flow reserve to mortality. PMID- 29032955 TI - Re: Letter to the Editor of Public Health in response to 'Evaluation of compliance with the Spanish Code of self-regulation of food and drinks advertising directed at children under the age of 12 years in Spain, 2012'. PMID- 29032956 TI - Evaluation of surface treatments of monolithic zirconia in different sintering stages. AB - PURPOSE: This study evaluated the effect of surface treatment of zirconia in pre sintered and post-sintered stages on its surface roughness, phase transformation, and biaxial flexural strength (BFS). METHODS: Zirconia ceramic discs (n=40) having a final dimensions of 12mm diameter and 1.2mm thickness were milled then divided into three main groups according to the type of surface treatment performed (Group 1 (n=16); air-abrasion using Al2O3 particles, Group 2 (n=16); silica coating using Rocatec soft, and Group 3 (n=8); a control group receiving no surface treatment). Groups 1 and 2 were divided into two subgroups each according to the stage in which the surface treatment was performed (Subgroup A; surface treatment performed in the pre-sintered stage and subgroup B; surface treatment performed in the post-sintered stage). Surface roughness, phase transformation, and biaxial flexural strength (BFS) were later assessed. Data was then analyzed using two-way ANOVA and Tukey post-hoc tests at a significance level of p<=0.05. RESULTS: Subgroups treated in the pre-sintered stage showed higher mean Ra in MUm (1.81+/-0.36) when compared to the subgroups treated in the post-sintered (0.68+/-0.07) stage and the control group (0.51+/-0.10) (p<=0.05). The pre-sintered treated group and the control showed no monoclinic phase while the post-sintered group showed significantly higher portions of monoclinic phase. Regarding BFS the post-sintered treated group had statistically significant higher values in MPa (1228+/-81) when compared to the pre-sintered treated group (940+/-101) and the control (1019+/-82) (p<=0.05). CONCLUSIONS: Air abrasion in the pre-sintered stage might be a promising surface treatment method to produce promising surface roughness values of zirconia without subjecting it to early degradation. PMID- 29032958 TI - Treatment of iron deficiency is getting trendy. PMID- 29032957 TI - Iron absorption from oral iron supplements given on consecutive versus alternate days and as single morning doses versus twice-daily split dosing in iron-depleted women: two open-label, randomised controlled trials. AB - BACKGROUND: Current guidelines to treat iron deficiency recommend daily provision of ferrous iron divided through the day to increase absorption. However, daily dosing and split dosing might increase serum hepcidin and decrease iron absorption from subsequent doses. Our study aim was to compare iron absorption from oral iron supplements given on consecutive versus alternate days and given as single morning doses versus twice-daily split dosing. METHODS: We did two prospective, open-label, randomised controlled trials assessing iron absorption using (54Fe)-labelled, (57Fe)-labelled, or (58Fe)-labelled ferrous sulfate in iron-depleted (serum ferritin <=25 MUg/L) women aged 18-40 years recruited from ETH Zurich and the University of Zurich, Switzerland. In study 1, women were randomly assigned (1:1) to two groups. One group was given 60 mg iron at 0800 h (+/-1 h) on consecutive days for 14 days, and the other group was given the same doses on alternate days for 28 days. In study 2, women were assigned to two groups, stratified by serum ferritin so that two groups with similar iron statuses could be formed. One group was given 120 mg iron at 0800 h (+/-1 h) and the other was given the dose split into two divided doses of 60 mg at 0800 h (+/ 1 h) and 1700 h (+/-1 h) for three consecutive days. 14 days after the final dose, the groups were each crossed over to the other regimen. Within-individual comparisons were done. The co-primary outcomes in both studies were iron bioavailability (total and fractional iron absorption), assessed by measuring the isotopic label abundance in erythrocytes 14 days after administration, and serum hepcidin. Group allocations in both studies were not masked and primary and safety analyses were done on an intention-to-treat basis. The studies were registered at ClinicalTrials.gov, numbers NCT02175888 (study 1) and NCT02177851 (study 2) and are complete. FINDINGS: For study 1, 40 women were enrolled on Oct 15-29, 2015. 21 women were assigned to the consecutive-day group and 19 to the alternate-day group. At the end of treatment (14 days for the consecutive-day group and 28 days for the alternate-day group), geometric mean (-SD, +SD) cumulative fractional iron absorptions were 16.3% (9.3, 28.8) in the consecutive day group versus 21.8% (13.7, 34.6) in the alternate-day group (p=0.0013), and cumulative total iron absorption was 131.0 mg (71.4, 240.5) versus 175.3 mg (110.3, 278.5; p=0.0010). During the first 14 days of supplementation in both groups, serum hepcidin was higher in the consecutive-day group than the alternate day group (p=0.0031). In study 2, 20 women were enrolled between Aug 13 and 18, 2015. Ten women were assigned to receive once-daily dosing and ten were assigned to receive twice-daily divided dosing. No significant differences were seen in fractional (day 1-3 geometric mean: 11.8% [7.1, 19.4] once daily vs 13.1% [8.2, 20.7] twice daily; p=0.33) or total iron absorption (day 1-3: 44.3 mg [29.4, 66.7] once daily vs 49.4 [35.2, 69.4] twice daily; p=0.33) between the two dosing regimens. Twice-daily divided doses resulted in a higher serum hepcidin concentration than once-daily dosing (p=0.013). No grade 3 or 4 adverse events were reported in either study. INTERPRETATION: In iron-depleted women, providing iron supplements daily as divided doses increases serum hepcidin and reduces iron absorption. Providing iron supplements on alternate days and in single doses optimises iron absorption and might be a preferable dosing regimen. These findings should be confirmed in iron-deficient anaemic patients. FUNDING: Swiss National Science Foundation, Bern, Switzerland. PMID- 29032959 TI - Clinical application of cell, gene and tissue therapies in Spain. AB - Scientific and technical advances in the areas of biomedicine and regenerative medicine have enabled the development of new treatments known as "advanced therapies", which encompass cell therapy, genetics and tissue engineering. The biologic products that can be manufactured from these elements are classified from the standpoint of the Spanish Agency of Medication and Health Products in advanced drug therapies, blood products and transplants. This review seeks to provide scientific and administrative information for clinicians on the use of these biologic resources. PMID- 29032960 TI - Correlation between oxyhaemoglobin saturation by pulse oximetry and partial pressure of oxygen in patients with acute respiratory failure. AB - OBJECTIVES: To ascertain the correlation between the partial pressure of oxygen (PaO2) and oxyhaemoglobin saturation by pulse oximetry (SpO2) in patients who were admitted to the emergency department with suspected acute respiratory failure. MATERIAL AND METHODS: A prospective, observational multicentre study was conducted in the emergency departments of 3 Spanish hospitals. RESULTS: The study included 166 patients who presented mean+/-standard deviation PaO2, SpO2 and fraction of inspired oxygen (FiO2) values of 61.64+/-17.3mmHg, 87.61+/-8.8% and 0.28+/-0.15%, respectively. The median PaO2/FiO2 and SpO2/FiO2 ratios were 256.6 and 359.2, respectively. The correlation between PaO2/FiO2 and the SpO2/FiO2 was 0.745 (P<.001). CONCLUSIONS: The SpO2/FiO2 ratio can be used to calculate PaO2/FiO2 and determine the oxygenation state of patients with acute respiratory failure. PMID- 29032961 TI - Optimal Quantification of Contact Inhibition in Cell Populations. AB - Contact inhibition refers to a reduction in the rate of cell migration and/or cell proliferation in regions of high cell density. Under normal conditions, contact inhibition is associated with the proper functioning tissues, whereas abnormal regulation of contact inhibition is associated with pathological conditions, such as tumor spreading. Unfortunately, standard mathematical modeling practices mask the importance of parameters that control contact inhibition through scaling arguments. Furthermore, standard experimental protocols are insufficient to quantify the effects of contact inhibition because they focus on data describing early time, low-density dynamics only. Here we use the logistic growth equation as a caricature model of contact inhibition to make recommendations as to how to best mitigate these issues. Taking a Bayesian approach, we quantify the trade off between different features of experimental design and estimates of parameter uncertainty so that we can reformulate a standard cell proliferation assay to provide estimates of both the low-density intrinsic growth rate, lambda, and the carrying capacity density, K, which is a measure of contact inhibition. PMID- 29032962 TI - The impact of postoperative complications on health-related quality of life in older patients with rectal cancer; a prospective cohort study. AB - OBJECTIVES: As result of the aging population and increasing rectal cancer incidence, more older patients undergo treatment for rectal cancer. This study compares treatment course, postoperative complications, and quality of life (QOL) between older and younger patients with rectal cancer and evaluates the impact of postoperative complications on QOL in the elderly. MATERIALS AND METHODS: Patients with rectal cancer participating in a prospective colorectal cancer cohort and referred for radiotherapy between 2013 and 2016 were included. QOL was assessed with the cancer questionnaire of the European Organisation for Research and Treatment of Cancer (EORTC QLQ-C30) before treatment and at three, six, and twelve months. Outcomes were compared between older patients (>=70years) and younger patients (<70years) and stratified by presence of postoperative complications. RESULTS: In total, 115 (33%) older patients and 230 (67%) younger patients were included. Compared to younger patients, older patients underwent significantly more often short-course radiation with delayed surgery (6.1% and 19.1% respectively) and less often chemoradiation (62.6% and 39.1% respectively), and were more likely to undergo a Hartmann procedure with permanent stoma (3.5% and 13.0% respectively) instead of sphincter-sparing surgery (43.9% and 29.6% respectively). Postoperative complication rates were similar (38.5% in older patients versus 34.7% in younger patients). Older patients had worse physical functioning at six and twelve months after diagnosis compared to younger patients. Presence of postoperative complications had a significant stronger impact on physical- and role functioning in older patients. CONCLUSION: Older patients undergo more often a tailored treatment approach for rectal cancer than younger patients. With this tailored approach, similar postoperative complication rates and QOL are achieved. However, postoperative complications have a larger negative impact on physical- and role functioning in older patients which indicates a need for better prediction of postoperative complications in the elderly. PMID- 29032963 TI - Exploring sex differences in diets and activity patterns through dental and skeletal studies in populations from ancient Corinth, Greece. AB - Sex and temporal differences are assessed in relation to dietary habits and activity patterns in three ancient populations from Corinth, Greece. The skeletal sample spans time from the Geometric to the Early Byzantine Period (9th c. BCE 5th c. CE). Dental caries and tooth wear have been proven to be reliable dietary indicators. Similarly, spinal osteoarthritis, spinal facet remodeling and Schmorl's nodes, have been used to infer activity patterns. PMID- 29032964 TI - Response to letter re "In pursuit of the perfect penis: Hypospadias repair outcomes". PMID- 29032965 TI - Long term mortality in critically ill burn survivors: Methodological issues. PMID- 29032966 TI - Safety and efficacy of uninterrupted perioperative enteral feeding in pediatric burn patients. AB - INTRODUCTION: Burn injuries are a significant cause of morbidity. Early enteral nutrition has been shown to improve outcomes, however enteral nutrition is often held for procedures receiving general anesthesia. Limited data is available on uninterrupted perioperative nutrition in pediatric burn patients. METHODS: A single, American Burn Association verified burn center database was queried for patients <=18 years of age with >=15% total body surface area (TBSA) burn injuries who underwent surgeries with general anesthesia. Demographic and clinical details were analyzed comparing patients who were fed continuously and those with interrupted feeds. RESULTS: Thirty-one patients met inclusion criteria. Eighteen had continuous feeds and thirteen had interrupted feeds. We found perioperative enteral feeds safe as there were no aspiration events in these patients. Patients with interrupted feeds lost an average of 119.1kcal/kg and 1.4days of estimated energy needs. This was a 125% fall below metabolic needs. This loss was more pronounced with multiple operations and for patients <30kg. Patients with continuous feeds gained an average of 144.4kcal/kg and 1.7days of estimated energy needs. These patients surpassed metabolic needs by 173%. Again, this had the biggest impact in patients with multiple operations and those <30kg. CONCLUSIONS: The metabolic demands of burn patients are above most critically ill patients. To meet these demands, we implemented uninterrupted perioperative feeding. There were no aspiration events. Continuous feeds were an effective means to achieve caloric demands and moderate catabolic injury. We demonstrated safety and efficacy of uninterrupted perioperative feeding of pediatric burn patients. PMID- 29032967 TI - Occlusive drainage system for split-thickness skin graft: A prospective randomized controlled trial. PMID- 29032968 TI - Early intervention by Captopril does not improve wound healing of partial thickness burn wounds in a rat model. AB - The Renin Angiotensin System is involved in fibrotic pathologies in various organs such as heart, kidney and liver. Inhibition of this system by angiotensin converting enzyme antagonists, such as Captopril, has been shown beneficial effects on these pathologies. Captopril reduced the inflammatory reaction but also directly influenced the fibrotic process. Prolonged and excessive inflammatory response is a major cause of hypertrophic scar formation in burns. We therefore evaluated the effect of Captopril on the healing of partial thickness burn wounds in a rat model. Partial thickness contact burns were inflicted on the dorsum of the rats. The rats received either systemic or local treatment with Captopril. The inflammatory reaction and wound healing (scar) parameters were investigated and compared to control animals. In this study we could not detect positive effects of either administration route with Captopril on the inflammatory reaction, nor on wound healing parameters. The local treatment showed reduced wound closure in comparison to the systemic treatment and the control group. Early Captopril treatment of burn wounds did not show the beneficial effects that were reported for fibrotic disorders in other tissues. To influence the fibrotic response Captopril treatment at a later time point, e.g. during the remodeling phase, might still have beneficial effects. PMID- 29032969 TI - The effect of adipose derived stromal vascular fraction on stasis zone in an experimental burn model. AB - BACKGROUND: Stasis zone is the surrounding area of the coagulation zone which is an important part determining the extent of the necrosis in burn patients. In our study we aim to salvage the stasis zone by injecting adipose derived stromal vascular fraction (ADSVF). METHODS: Thermal injury was applied on dorsum of Sprague-Dawley rats (n=20) by the "comb burn" model as described previously. When the burn injury was established on Sprague-Dawley rats (30min); rat dorsum was separated into 2 equal parts consisting of 4 burn zones (3 stasis zone) on each pair. ADSVF cells harvested from inguinal fat pads of Sprague-Dawley rats (n=5) were injected on the right side while same amount of phosphate buffered saline (PBS) injected on the left side of the same animal. One week later, average vital tissue on the statis zone was determined by macroscopy, angiography and microscopy. Vascular density, inflammatory cell density, gradient of fibrosis and epithelial thickness were determined via immunohistochemical assay. RESULTS: Macroscopic stasis zone tissue viability (32+/-3.28%, 57+/-4.28%) (p<0.01), average number of vessels (10.28+/-1.28, 19.43+/-1.72) (p<0.01), capillary count (15.67+/-1.97, 25.35+/-2.15) (p<0.01) vascular density (1.55+/-0.38, 2.14+/-0.45) (p<0.01) epithelial thickness (0.014+/-0.009mm, 0.024+/-0.0011mm) were higher on ADSVF side. Fibrosis gradient (1.87+/-0.51, 1.50+/-0.43) (p<0.01) and inflammatory cell density (1.33+/-0.40, 1.20+/-0.32) (p<0.01) were higher on the PBS side. CONCLUSION: Macroscopic and microscopic findings determined that ADSVF has a statistically significant benefit for salvaging stasis zone on acute burn injuries. PMID- 29032970 TI - Platelet count: A predictor of sepsis and mortality in severe burns. AB - BACKGROUND: Platelet cells, or thrombocytes, have additional roles to haemostasis. After burn injury, platelet counts drop to a nadir at days 2-5 then rise to a peak between days 10-18. The nadir has previously been associated with mortality but there is currently no thorough investigation of its potential to predict sepsis in adults. The primary objective of this study is to assess whether platelet count can predict survival and sepsis in adults with severe burn injuries. METHODS AND FINDINGS: A retrospective cohort analysis of platelet count and other blood parameters in 145 burn patients with a TBSA greater than 20%. AUROC analysis revealed that the platelet count and rBaux score together produce moderate discrimination for survival at less than 24h after injury (AUROC=0.848, 95%CI 0.765-0.930). Platelet count at day 3 combined with TBSA has a modest association with sepsis (AUROC=0.779, 95%CI 0.697-0.862). Multivariable Cox regression analysis revealed platelet peak was the strongest predictor of mortality. CONCLUSIONS: A reduced peak platelet count is a strong predictor of 50 day mortality. Platelet count nadir may have some association with sepsis. PMID- 29032971 TI - The prevention strategies for the geographical belt of self-immolation. PMID- 29032972 TI - Long term cardiovascular impacts after burn and non-burn trauma: A comparative population-based study. AB - OBJECTIVE: To compare post-injury cardiovascular disease (CVD) hospital admissions experienced by burn patients with non-burn trauma patients and people with no record of injury, adjusting for socio-demographic, health and injury factors. METHODS: Linked hospital and death data were analysed for a cohort of burn patients (n=30,997) hospitalised in Western Australia during the period 1980 2012 and age and gender frequency matched comparison cohorts (non-burn trauma: n=28,647; non-injured: n=123,399). The number and length of hospital stay for CVD admissions were used as outcome measures. Multivariate negative binomial regression was used to derive adjusted incidence rate ratios (IRR) and 95% confidence intervals (95%CI). Multivariate Cox regression models and hazard ratios (HR) were used to examine first time post-injury CVD admissions. RESULTS: The burn cohort had a higher rate of CVD (combined) admissions (IRR, 95%CI: 1.16: 1.08-1.24) and spent longer in hospital (IRR, 95%CI: 1.37, 1.13-1.66) than the non-burn trauma cohort. Both the burn cohort (IRR, 95%CI: 1.50, 1.40-1.60) and the non-burn trauma cohort (IRR, 95%CI: 1.29, 1.21-1.37) had higher adjusted rates of post-injury CVD admissions compared with the non-injured cohort. The burn cohort (HR, 95%CI: 2.27, 1.70-3.02) and non-burn trauma cohort (HR, 95%CI: 2.19, 1.66-2.87) experienced significantly elevated first time CVD admissions during the first 6 months after injury, decreasing in magnitude from 6 months to 5 years after injury (HR, 95%CI: burn vs. non-injured; 1.31, 1.16-1.48; non-burn trauma vs. non-injured; 1.16, 1.03-1.31); no significant difference in incident admission rates was found beyond 5 years (HR, 95%CI: burn vs. non-injured; 0.99, 0.92-1.07; non-burn trauma vs. non-injured; 1.00, 0.93-1.07). CONCLUSIONS: Burn and non-burn trauma patients experience elevated rates of post-injury CVD admissions for a prolonged period after the initial injury and are particularly at increased risk of incident CVD admissions during the first 5-years after the injury event. Detailed clinical data are required to help understand the underlying pathogenic pathways triggered by burn and non-burn trauma. This study identified treatment needs for injury patients, burn and non-burn, for a prolonged period after discharge. PMID- 29032973 TI - Epidemiology and socio-demographic risk factors of self-immolation: A systematic review and meta-analysis. AB - OBJECTIVE: Self-immolation or self-inflicted burn is the most tragic and violent method of suicide. The higher prevalence of this dramatic phenomenon in Iran is a serious social and health problem. In this study, we conducted a meta-analysis to combine the results from available studies to examine the epidemiology and socio demographic characteristics of individuals who attempted self-immolation in Iran. METHOD: Pertinent studies were identified by searching the electronic bibliographic databases including PubMed, Scopus, Science Direct, Iran Medex, Magiran, Medlib and Scientific Information Database (SID) (2000-October 2016). Meta-analysis was used to summarize the research results on socio-demographic risk factors of self-immolation in Iran. The STROBE checklist was used to assess quality of the study. The random effect model was employed in the meta-analysis to account for the observed heterogeneity among the selected studies. RESULTS: Twenty-nine studies (sample size=5717) were included in the meta-analysis. The estimated average age of individuals who attempted self-immolation was 27.31 (95% confidence interval [CI]: 25.81-28.81) years. Women account for 70% (95% CI: 64 77) of all self-immolation attempts in Iran. Thirty-nine (95% CI: 34-43) per cent of all self-immolation were among singles. Nineteen (95% CI: 16-22) per cent of self-immolators had mental disorder. Meta-regression model showed that the average age of individuals who attempted self-immolation increased significantly over the period between 2000 to 2016 (P-value=0.006). CONCLUSIONS: Our study indicated that individuals who attempted self-immolation in Iran were mainly women, married and young adults. PMID- 29032974 TI - Prospective comparative evaluation study of Laser Doppler Imaging and thermal imaging in the assessment of burn depth. AB - INTRODUCTION: The accurate assessment of burn depth is challenging but crucial for surgical excision and tissue preservation. Laser Doppler Imaging (LDI) has gained increasing acceptance as a tool to aid depth assessment but its adoption is hampered by high costs, long scan times and limited portability. Thermal imaging is touted as a suitable alternative however few comparison studies have been done. METHODS: Sixteen burn patients with 52 regions of interests were analysed. Burn depth was determined using four methods LDI, thermal imaging, photographic and real-time clinical evaluation at day 1 and day 3. LDI flux and Delta T values were used for the prediction of outcomes (wound closure in <21 days). Photographic clinical evaluation of burn depth was performed by 4 blinded burn surgeons. RESULTS: Accuracy of assessment methods were greater on post burn day 3 compared to day 0. Accuracies of LDI on post burn day 0 and 3 were 80.8% and 92.3% compared to 55.8% and 71.2% for thermal imaging and 62.5% and 71.6% for photographic clinical assessment. Real-time clinical examination had an accuracy of 88.5%. Thermal imaging scan times were significantly faster compared to LDI. DISCUSSION: LDI outperforms thermal imaging in terms of diagnostic accuracy of burn depth likely due to the susceptibility of thermal imaging to environmental factors. PMID- 29032975 TI - Comparison of non-surgical methods for the treatment of deep partial thickness skin burns of the hand. AB - This paper describes a randomized, controlled, parallel-group, single-center clinical trial designed to compare non surgical treatment methods of deep partial thickness skin burns of the hand. All patients were scanned with the Laser Doppler Imaging device to determine the depth of the burn wound. Viable keratinocytes sites were determined according to the established Perfusion Units (PU) measurement system. The trial enrolled 87 patients with hand burn wounds in the section of 260-600PU. Hand burn patients were divided into the following four groups: treated with hydrocolloid dressings; treated with mechanical debridement of monofilament polyester fibers pad and then applying silver sulfadiazine; treated with gauze dressings containing enzymatic collagenase preparation. The fourth group of patients was treated with silver sulfadiazine and gauze dressings. This group was considered as the control group. The wound healing status was assessed after 3, 7, 14 and 21 days. Burn scars and injured extremity function were assessed after six months according to the Vancouver Scar Scale and Disabilities of the Arm, Shoulder and Hand Outcome Measure. The fastest epithelialization of hand burn wounds was observed in the patients group treated with hydrocolloid dressings (15, 7 days, p<0,05). The patients of this group also had less scars and a better hand function. PMID- 29032976 TI - The application of 3D-printed transparent facemask for facial scar management and its biomechanical rationale. AB - INTRODUCTION: Deep facial burns leave conspicuous scar to the patients and affect their quality of life. Transparent facemask has been adopted for the prevention and treatment of facial hypertrophic scars for decades. Recently, with the advancement of 3D printing, the transparent facemask could facilitate the fitting of the facial contour. However, the effectiveness of the device and its biomechanical characteristics on pressure management of hypertrophic scar would need more objective evaluation. METHOD: A biomechanical model of the transparent 3D-printed facemask was established through finite element analysis. Ten patients with extensive deep facial burns within 6 months were recruited for clinical study using 3D-printed facemask designed according to biomechanical model, and the interface pressure was measured on each patient. The patients in the treatment group (n=5) was provided with the 3D-printed transparent face mask soon after initial scar assessment, while the delayed treatment group (n=5) began the treatment one month after the initial scar assessment. The scar assessment was performed one month post intervention for both groups. RESULTS: The biomechanical modeling showed that the 3D, computer-generated facemask resulted in unbalanced pressure if design modifications were not incorporated to address these issues. The interface pressure between the facemask and patient's face was optimized through individualized design adjustments and the addition of silicone lining. After optimization of pressure through additional lining, the mean thickness and hardness of the scars of all 10 patients were decreased significantly after 1 month of intervention. In the delayed treatment group, the mean thickness of the scars was increased within the month without intervention, but it was also decreased after intervention. CONCLUSION: Facemask design and the silicone lining are important to ensure adequate compression pressure of 3D-printed transparent facemask. The intervention using the 3D-printed facemask appeared to show its efficacy to control the thickness and hardness of the facial hypertrophic scars. PMID- 29032978 TI - Histological observation of hairless mice skin after exposure to Simulated Solar Light: Comparison between the histological findings with different methodologies and 3R principle correlations. AB - BACKGROUND: Albino hairless mouse (AHM) has been used as a biological model in photodermatology. However, the experimental landscape is diverse to follow and need particular attention. PURPOSE: Irradiation parameters were investigated for the development of a protocol to assess alterations in the AHM skin using Simulated Solar Light (SSL). The present study was compared with published articles (last 15 years) according to irradiation protocols, morphological findings to minimize animal suffering and UV exposure. MATERIALS AND METHODS: Three groups: Control (G1), experimental - sunburn (G2) and skin photodamage assay (G3). G2 were immobilized and exposed to SSL once for 15, 30 and 45min. G3 were exposed to SSL, without immobilization, for 15min once a day for one week. The dorsal skin was analyzed using hematoxylin and eosin technique. RESULTS: G2 displayed different sunburn degrees. Based on the profile of the observed morphological alterations, a 15min irradiation was chosen as the exposure time to expose G3, without immobilization, for 5 consecutive days. CONCLUSION: These conditions produced the same morphological changes in the AHM with a shorter solar exposure time, without immobilizing the animals but using environmental exposure fluences, conforming to 3R (reduction - refinement - replacement) recommendations. PMID- 29032977 TI - Analysis of factor XIa, factor IXa and tissue factor activity in burn patients. AB - INTRODUCTION: An elevated procoagulant activity observed in trauma patients is, in part, related to tissue factor (TF) located on blood cells and microparticles. However, analysis of trauma patient plasma indicates that there are other contributor(s) to the procoagulant activity. We hypothesize that factor (F)XIa and FIXa are responsible for an additional procoagulant activity in burn patients. METHODS: Multiple time-point plasma samples from 56 burn patients (total number of samples was 471; up to 20 time-points/patient collected in 3 weeks following admission) were evaluated in a thrombin generation assay using inhibitory antibodies to TF, FIXa and FXIa. RESULTS: Due to the limited volume of some samples, not all were analyzed for all three proteins. At admission, 10 of 53 patients (19%) had active TF, 53 of 55 (96%) had FXIa and 48 of 55 (87%) had FIXa in their plasma. 34 patients of 56 enrolled (61%) showed TF activity at one or more time-points. All patients had FXIa and 96% had FIXa at one or more time points. Overall, TF was observed in 99 of 455 samples analyzed (22%), FXIa in 424 of 471 (90%) and FIXa in 244 of 471 (52%). The concentration of TF was relatively low and varied between 0 and 2.1pM, whereas that of FXIa was higher, exceeding 100pM in some samples. The majority of samples with FIXa had it at sub-nanomolar concentrations. No TF, FXIa and FIXa activity was detected in plasma from healthy individuals. CONCLUSIONS: For the first time reported, the majority of plasma samples from burn patients have active FXIa and FIXa, with a significant fraction of them having active TF. The concentration of all three proteins varies in a wide range. PMID- 29032979 TI - A treatment algorithm for the management of intraoral burns: A narrative review. AB - Oral mucosa follows a distinctly different trajectory of wound healing than skin. Although there are contemporary guidelines regarding treatment of burns to the skin, there is no standard of care specific to intraoral burns. This narrative review proposes an evidence-based treatment algorithm for the management of intraoral burns. Data was collated through a comprehensive review of the literature and only included studies that have reported particular success with favorable short- and long-term prognoses. In order to critically appraise the strength of the treatment recommendations, the GRADE criteria was applied to each arm of the algorithm. The algorithm was initially subdivided into the four primary etiologies of intraoral burns - thermogenic, cryogenic, chemical, electrical. Our findings emphasize the importance of conservative modalities of intra-oral burn treatment. PMID- 29032980 TI - Management of finger deep burns: The interest of local flaps. AB - INTRODUCTION: The management of finger deep burns is still problematic for the surgeon. Due to the fineness and the thickness of the subcutaneous tissue, after excision there is an important risk of exposure of the underlying tissue like bone, nerve or tendons. Local flaps (random pattern flap and pedicle flap) allowed ensuring a good quality covering with a tissue with many advantages (good thickness, sensitivity). On the contrary of all other techniques, flaps can be used independently from the vascular quality of the wound bed. Despite those advantages, the literature is poor to report the experience of flap in the management of finger deep burn. MATERIAL AND METHODS: We report our experience in the use of such technique with a series of 49 flaps. The cohort consisted of 34 patients (22 men and 12 women) who were treated in our unit between 2003 and 2012. RESULTS: Of the 49 flaps made, 71,4% were homodactyl flaps. 22,5% were heterodactyl flaps and 6,1% were intermetacarpian (second space) flaps. The rate of success was 87,8%. We reviewed 16 patients out of 34 patients operated, 20 of the 49 flaps performed (40,8%). The patients were reviewed by an independent surgeon. The average follow-up at this consultation was 4,25+/-2,46 years. The monofilament test was positive for 17 flaps (85% of cases). For the Weber's test, we found a normal perception threshold for 11 flaps (55%), with an average test at 2,8mm (2-4mm). Normal motricity was found at the donor site in 14 of the 16 patients evaluated for 18 of the 20 revised flaps (90% of cases). In terms of cosmetic result, the average overall score obtained at the patient's own evaluation was 0.85. That obtained by the evaluator was equal to 0.55, with no significant difference (scale range from 0 best results to 5 worse results). DISCUSSION: Hand and finger burns are frequent and benefit from rapid, high quality coverage, enabling early mobilization to combat secondary stiffness problems. The high success rate of our series, as well as the quality of the functional and cosmetic results obtained, demonstrate the reliability and the interest of the digital flaps. PMID- 29032981 TI - Nationwide web survey of pediatric scalds: Prevalence and the relationship with household vacuum flasks. AB - OBJECTIVE: To explore the prevalence of pediatric (0-72 months old) scalds, and to clarify its relationship with household vacuum flasks. METHODS: A cross sectional online survey based on the largest social media in China. Online questionnaire was pushed twice a day to our target respondents for successive seven days. We were authorized to gain, analyze and publish the information related to this research by the Sina & Weibo data center. RESULTS: Prevalence of pediatric scalds was 5.5%. Gender ratio (boy to girl) was 1.96:1. Toddlers (12-36 months old) were the most susceptible age group (54.5%). Non-intentional water spill was the main causation (77.3%). An extremely low percent (7.1%) of the parents performed first-aid as described by the "RRICH" rule: water rinse - clothes remove - water immersion - clean cover - hospital. Scars developed in 52.7% patients and 14.7% of them underwent reconstructive surgery. There were 75.5% Chinese families using vacuum flasks in daily life, but only 6.1% families used the fastening device to avoid burns. CONCLUSION: Prevalence of pediatric scalds (0-72 months old) was rather high, which might be related to the extensive insecure usage of household vacuum flasks. PMID- 29032982 TI - The menace of self-immolation plaguing Asian nations. PMID- 29032983 TI - Early versus late surgical management of complicated appendicitis in children: A statewide database analysis with one-year follow-up. AB - BACKGROUND: Complicated appendicitis is common in children, yet the timing of surgical management remains controversial. Some support initial antibiotics with delayed operation whereas others support immediate operation. While a few randomized trials have evaluated this question, they have been small, single center trials with limited follow-up. We present a database analysis of outcomes in early versus late surgical management of complicated appendicitis with one year follow-up. METHODS: We conducted a retrospective review of children with complicated appendicitis presenting between 2000 and 2013, utilizing a New York State database. We compare children undergoing later versus early appendectomy with a primary outcome measure of any complication within one year as determined from ICD-9 codes. RESULTS: 8840 children were included in the analysis, 7708 of whom underwent early appendectomy. Patients with late appendectomy were significantly more likely to have at least one complication when compared to those undergoing early appendectomy (34.6% vs 26.7%, p<0.01). CONCLUSIONS: We present the first population-level study evaluating early versus late appendectomy in children with complicated appendicitis with a one-year follow-up period. Children undergoing late appendectomy were more likely to have a complication than those undergoing early appendectomy. These data corroborated previous studies supporting early operative management. LEVEL OF EVIDENCE: This study provides level III evidence of a treatment study. PMID- 29032984 TI - Immune response in Mansonella ozzardi infection modulated by IL-6/IL-10 axis in Amazon region of Brazil. AB - Mansonellosis is an endemic disease in the South and Central America. In Brazil, one of the etiological agents is Mansonella ozzardi. This filarial infection is yet poorly understood, with a controversial morbity, presenting since a oligosymptoms, malaria-like signs or without complaint in humans. The knowledge of the human immune response to microfilariae infection is limited mainly by different evolutionary cycles of the parasite in the host. In addition, the prevalence of this filarial parasite infection is high in several regions of Amazonas State. A cross-sectional study was conducted in an endemic area for microfilariae of M. ozzardi (MF) infection in the Amazonas State, Brazil. Proinflammatory and regulatory cytokines (IL-2, IL-4, IL-6, IL-10, TNF, IFN gamma, and IL-17A) were measured in cryopreserved serum using the Cytometric Bead Array techniques (CBA) in 54 patients diagnosed with M. ozzardi infection and 55 individuals without the infection were included in the study (Controls). The IL 4, IL-6 and IL-10 level increased in infected patients with MF infection, while IL-17A increased in control only. When we compared controls to patients with high or low parasite load, the increased level of IL-6 and IL-10 were maintained. IL-6 contributes to the proinflammatory activity and IL-10 modulates Th1, Th2 and Th17 immune response. Furthermore, IL-4 was detected as a marker in the MF infection and MF patients with low parasite load, indicating the action of the Th2 cell response. The complex network of cytokines acting during M. ozzardi infection depends on a fine balance to determine a host protective effect or filarial persistence. Therefore, these results suggest that the immune response in MF infection is modulated by IL-6/IL-10 axis. PMID- 29032985 TI - DAMP-TLR-cytokine axis dictates the fate of tumor. AB - Random mutations leading to loss of cell cycle control is not a rare occurrence in an organism but the mutated cells are recognized and eliminated preventing the development of a tumor. These potentially tumorigenic cells release damage associated molecular patterns (DAMPs), which are recognized by toll-like receptors (TLRs) on macrophages and dendritic cells. The initial TLR-DAMP interactions lead to different responses such as altered antigen presentation and cytokine release that directly affect T cell activation and removal of the tumorigenic cells. The indirect effects of TLR-DAMP interaction include chemokine directed altered T cell trafficking, angiogenesis for both T cell infiltration and tumor cell metastasis, and alteration of intra-tumoral milieu contributing to the development of tumor cells heterogeneity. Thus, the initial TLR-DAMP interaction has a set of local effects that modulate tumor cell growth and heterogeneity and a disseminating set of central effects that dynamically affect T cell trafficking and functions. Herein, we argue that the DAMP-TLR-cytokine axis in the tumor microenvironment serves as the mainstay that orchestrates and regulates the pro- and anti-tumor elements which dynamically interact between themselves eventuating in tumor regression or growth. The knowledge of this TLR based immuno-surveillance framework is a key to developing a novel immunotherapy against cancer. PMID- 29032986 TI - Mycobacterium tuberculosis strains induce strain-specific cytokine and chemokine response in pulmonary epithelial cells. AB - M. tuberculosis F15/LAM4/KZN has been associated with high transmission rates of drug resistant tuberculosis in the KwaZulu-Natal province of South Africa. The current study elucidated the cytokine/chemokine responses induced by representatives of the F15/LAM4/KZN and other dominant strain families in pulmonary epithelial cells. Multiplex cytokine analyses were performed at 24, 48 and 72h post infection of the A549 pulmonary epithelial cell line with the F15/LAM4/KZN, F28, F11, Beijing, Unique and H37Rv strains at an MOI of ~10:1. Twenty-three anti- and pro-inflammatory cytokines/chemokines were detected at all time intervals. Significantly high concentrations of IL-6, IFN-gamma, TNF-alpha and G-CSF at 48h, and IL-8, IFN-gamma, TNF-alpha, G-CSF and GM-CSF at 72h, were induced by the F28 and F15/LAM4/KZN strains, respectively. Lower levels of cytokines/chemokines were induced by either the Beijing or Unique strains at all three time intervals. All strains induced up-regulation of pathogen recognition receptors (PRRs) (TLR3 and TLR5) while only the F15/LAM4/KZN, F11 and F28 strains induced significant differential expression of TLR2 compared to the Beijing, Unique and H37Rv strains. The low induction of cytokines in epithelial cells by the Beijing strain correlates with its previously reported hypervirulent properties. High concentrations of cytokines and chemokines required for early protection against M. tuberculosis infections induced by the F15/LAM4/KZN and F28 strains suggests a lower virulence of these genotypes compared to the Beijing strain. These findings demonstrate the high diversity in host cytokine/chemokine response to early infection of pulmonary epithelial cells by different strains of M. tuberculosis. PMID- 29032987 TI - Virtual reconstruction of glenoid bone defects using a statistical shape model. AB - BACKGROUND: Description of the native shape of a glenoid helps surgeons to preoperatively plan the position of a shoulder implant. A statistical shape model (SSM) can be used to virtually reconstruct a glenoid bone defect and to predict the inclination, version, and center position of the native glenoid. An SSM-based reconstruction method has already been developed for acetabular bone reconstruction. The goal of this study was to evaluate the SSM-based method for the reconstruction of glenoid bone defects and the prediction of native anatomic parameters. METHODS: First, an SSM was created on the basis of 66 healthy scapulae. Then, artificial bone defects were created in all scapulae and reconstructed using the SSM-based reconstruction method. For each bone defect, the reconstructed surface was compared with the original surface. Furthermore, the inclination, version, and glenoid center point of the reconstructed surface were compared with the original parameters of each scapula. RESULTS: For small glenoid bone defects, the healthy surface of the glenoid was reconstructed with a root mean square error of 1.2 +/- 0.4 mm. Inclination, version, and glenoid center point were predicted with an accuracy of 2.4 degrees +/- 2.1 degrees , 2.9 degrees +/- 2.2 degrees , and 1.8 +/- 0.8 mm, respectively. DISCUSSION AND CONCLUSION: The SSM-based reconstruction method is able to accurately reconstruct the native glenoid surface and to predict the native anatomic parameters. Based on this outcome, statistical shape modeling can be considered a successful technique for use in the preoperative planning of shoulder arthroplasty. PMID- 29032988 TI - Clinical and radiographic outcomes after total shoulder arthroplasty with an anatomic press-fit short stem. AB - BACKGROUND: There is limited information assessing outcomes after total shoulder arthroplasty (TSA) with a press-fit short stem. The purpose of this study was to evaluate early clinical and radiographic outcomes and complications after TSA with an anatomic press-fit short stem. METHODS: We identified 118 TSAs completed with press-fit short stem and minimum 2-year follow-up; 85 of these patients had a grit-blasted (GB) short stem placed, whereas 33 patients had short stems with proximal porous coating (PPC). Shoulder function scores, active mobility measurements, and radiographs were assessed. RESULTS: The average age at surgery was 66.7 years, with average follow-up of 3 years. Significant improvements were noted for all shoulder function scores and active mobility measurements from the preoperative state to final follow-up (P < .001). There was no stem loosening in any patients with minimum 2-year follow-up; however, 3 female patients with GB stems had gross loosening of their humeral components before 1 year, 2 requiring revision. Radiolucent lines around the humeral component were found in 5.9% without evidence of loosening. Osseous resorption at the medial cortex was noted in 9.3%. Of patients with PPC stems, no patients were observed to have radiolucent lines compared with 8.2% in the GB group (P = .09). CONCLUSION: TSAs with anatomic press-fit short stem showed significant clinical improvements from the preoperative state to final short-term follow-up, with few complications and minimal radiographic changes. Lack of PPC may contribute to early loosening in patients with poor bone quality. The authors now use a short stem with PPC. PMID- 29032990 TI - Department of Error. PMID- 29032989 TI - Functional outcomes of distal triceps tendon repair comparing transosseous bone tunnels with suture anchor constructs. AB - BACKGROUND: Distal triceps tendon ruptures are relatively rare. Few studies have investigated functional outcomes after repair. There is no consensus on fixation methods for this injury. The purpose of this study was to compare the functional outcomes and the reoperation rates after distal triceps tendon repairs using transosseous tunnels and suture anchors. METHODS: A multicenter, retrospective review of all primary triceps repairs done between 2006 and 2015 was performed. Patients were included if they had a minimum of 2 years of follow-up. Intraoperative data recorded included repair method and number of anchors used when applicable. Patients were contacted for functional assessment with the Mayo Elbow Performance Score (MEPS). Postoperative complications were also queried. RESULTS: There were 56 cases of primary triceps repair identified in an all-male cohort. Average age at time of surgery was 52.7 years; 58.9% of patients had transosseous repair, and 41.1% had suture anchor repair. The average follow-up was 4.26 years. The average postoperative MEPS score for all patients was 94. There was no difference in MEPS outcomes based on construct type. Postoperative Disabilities of the Arm, Shoulder, and Hand scores had an overall average of 4.81. A statistically significant difference was found, with the transosseous group averaging 2.98 points lower than the suture anchor group. This difference was not found to be clinically relevant. Only 4 patients had rerupture of the triceps requiring revision. CONCLUSIONS: Primary repair of distal triceps tendon ruptures yields good, durable patient outcomes with minimal rerupture regardless of repair construct. PMID- 29032991 TI - A milestone for palliative care and pain relief. PMID- 29032992 TI - Felicia Marie Knaul: advocate for better pain relief and palliative care. PMID- 29032994 TI - Department of Error. PMID- 29032995 TI - Department of Error. PMID- 29032996 TI - Department of Error. PMID- 29032993 TI - Alleviating the access abyss in palliative care and pain relief-an imperative of universal health coverage: the Lancet Commission report. PMID- 29032997 TI - Department of Error. PMID- 29032998 TI - Department of Error. PMID- 29033000 TI - [Proliferation of a basal cell carcinoma on a sebaceous nevus of the lower eyelid: Case report of a rare association]. PMID- 29032999 TI - A prospective phase I comparison of toxicity and cosmesis outcomes of single fraction IORT and hypofractionated radiotherapy with IORT boost in early-stage breast cancer. AB - PURPOSE: Radiation therapy is proven to reduce local recurrence in patients with early-stage breast cancer. To reduce toxicity, treatment time, and improve accuracy, intraoperative radiation therapy was used as definitive treatment or as a boost. The study's objective was to compare the short-term toxicity and cosmesis of single-fraction (SF) IORT and hypofractionated radiotherapy with IORT boost (HfB) given as definitive treatment. METHODS AND MATERIALS: Between March 2011 and December 2013, 57 patients aged 45-91 years and 24 patients aged 43-83 years (total n = 81) with Stage 0-II were treated with SF or HfB (Mobetron, IntraOp Medical, Sunnyvale, CA). For SF treatment, 21 Gy was delivered using 4.5 6 cm applicators with electron energies from 6 to 12 MeV. For HfB, an intraoperative boost of 10 Gy was delivered using 4-7 cm applicators with energies from 4 to 12 MeV followed by whole-breast radiation with 40.5 Gy over 15 fractions. Toxicity was assessed at 2 weeks, 6 months, and 12 months per Radiation Therapy Oncology Group acute skin toxicity criteria and cosmesis. RESULTS: At 12 months, SF and HfB were well tolerated by all patients with no Grade 3+ toxicity. At 1 year, Grade-2 toxicity was resolved. Ninety-eight percent of SF patients and ninety percent of HfB patients had 0-1 grade toxicity. In the SF and HfB groups, 100% of patients had excellent or good cosmesis at 12-month followup interval. The SF exhibited a more favorable cosmesis with a higher percentage of excellent scores compared with HfB (80.4% vs. 45%; p = 0.0033). CONCLUSIONS: After breast conservation surgery, SF or HfB may be an option for patients with early-stage breast cancer compared to conventional external beam radiotherapy. PMID- 29033001 TI - The role of microRNAs in photodynamic therapy of cancer. AB - Photodynamic therapy (PDT) is a non-invasive treatment modality used in the management of both benign and malignant conditions. It involves the administration of a photosensitizing agent followed by local light irradiation, which activates the photosensitizer, resulting in tissue damage. An in-depth understanding of the molecular mechanisms and mediators of PDT is important, not only for appreciating how this treatment modality is effective, but also as an avenue for understanding potential shortfalls and untoward effects that can be managed or improved. MicroRNAs are a group of endogenous small non-coding regulatory molecules that play important roles in regulating several physiological processes and have been implicated in several pathologies including cancer. They have been found to regulate key cellular pathways and their aberrant expression highlights not only disease onset or progression, but is associated with therapy resistance and disease outcome. In the present review, we evaluate the role of microRNAs in PDT and dissect their function as effectors of PDT including the molecules they regulate. We also look at how miRNA signatures can be used as predictors of therapy response to PDT and what implications this may have in the treatment of patients with PDT. PMID- 29033002 TI - Fiber orientation effects in simple shearing of fibrous soft tissues. AB - Fiber-reinforcement is a common feature of many soft biological tissues. Continuum mechanics modeling of the mechanical response of such tissues using transversely isotropic hyperelasticity is now well developed. The fundamental deformation of simple shear within this framework is examined here. It is well known that the normal stress effect characteristic of nonlinear elasticity plays a crucial role in maintaining a homogeneous deformation state in the bulk of the specimen. Here we consider the effect of anisotropy and fiber-orientation on the shear and normal stresses. It is shown that the confining traction that needs to be applied to the top and bottom faces of a block in order to maintain simple shear can be compressive or tensile depending on the degree of anisotropy and on the angle of orientation of the fibers. In the absence of such an applied traction, an unconfined sample tends to bulge outwards or contract inwards perpendicular to the direction of shear so that one has the possibility of both a positive or negative Poynting effect. The results are illustrated using experimental data obtained by other authors for porcine brain white matter. The general results obtained here are relevant to the development of accurate shear test protocols for the determination of constitutive properties of fibrous biological soft tissues. PMID- 29033003 TI - Clinicopathological parameters affecting nodal yields in patients with oral squamous cell carcinoma receiving selective neck dissection. AB - INTRODUCTION: Nodal yield has been demonstrated as a very promising marker for the prognostic outcome of patients with oral squamous cell carcinoma. However, studies on the importance of clinicopathological factors affecting the number of resected lymph nodes are rare, especially for patients without pathologically proven cervical lymph nodes. MATERIAL AND METHODS: Retrospective chart review of 264 patients with treatment naive oral squamous cell carcinoma and histopathologically proven negative cervical lymph node status, who received selective neck dissection of levels I-III/IV. Exclusion criteria were neoadjuvant chemoradiotherapy, comprehensive or bilateral neck dissection, T4b classification, perioperative death, unresectable disease, synchronous malignancy, follow-up <3 months and inadequate information to correctly determine nodal yield. Statistical analysis was performed by using univariate and multivariate analysis. RESULTS: The mean nodal yield was 22.31 with a standard deviation of 16.01 and a mean number of 17 nodes. Gender (p = 0.018), age (p = 0.03), tumor classification (p < 0.001) and perineural invasion (p = 0.012) were significantly associated with nodal yield. Multivariate analysis indicated T classification (p = 0.049) and age (p = 0.020) as independent factors. Nodal yield was significantly associated with locoregional recurrence (p = 0.041; Cutoff value = 17). CONCLUSION: Advanced age and T-classification independently affect lymph node yields in patients with oral squamous cell carcinoma. Hence, they have to be considered for interpretation of both nodal yield and recommended minimum lymph node counts. Furthermore, resection of more than 17 lymph nodes is associated with a significantly lower risk of locoregional recurrence. PMID- 29033004 TI - The role of schools in the diagnosis of ADHD. PMID- 29033005 TI - ADHD in children and young people: prevalence, care pathways, and service provision. AB - Attention-deficit hyperactivity disorder (ADHD) is a common childhood behavioural disorder. Systematic reviews indicate that the community prevalence globally is between 2% and 7%, with an average of around 5%. At least a further 5% of children have substantial difficulties with overactivity, inattention, and impulsivity that are just under the threshold to meet full diagnostic criteria for ADHD. Estimates of the administrative prevalence (clinically diagnosed or recorded) vary worldwide, and have been increasing over time. However, ADHD is still relatively under-recognised and underdiagnosed in most countries, particularly in girls and older children. ADHD often persists into adulthood and is a risk factor for other mental health disorders and negative outcomes, including educational underachievement, difficulties with employment and relationships, and criminality. The timely recognition and treatment of children with ADHD-type difficulties provides an opportunity to improve long-term outcomes. This Review includes a systematic review of the community and administrative prevalence of ADHD in children and adolescents, an overview of barriers to accessing care, a description of associated costs, and a discussion of evidence-based pathways for the delivery of clinical care, including a focus on key issues for two specific age groups-younger children (aged <=6 years) and adolescents requiring transition of care from child to adult services. PMID- 29033006 TI - Relative age within the school year and diagnosis of attention-deficit hyperactivity disorder: a nationwide population-based study. AB - BACKGROUND: Findings are mixed on the relationship between attention-deficit hyperactivity disorder (ADHD) and younger relative age in the school year. We aimed to investigate whether relative age is associated with ADHD diagnosis in a country where prescribing rates are low and whether any such association has changed over time or relates to comorbid disorders (eg, conduct disorder [CD], oppositional defiant disorder [ODD], or learning disorder [LD]). METHODS: We used nationwide population-based registers to identify all Finnish children born between Jan 1, 1991, and Dec 31, 2004, who were diagnosed with ADHD from age 7 years onwards (age of starting school). We calculated incidence ratios to assess the inter-relations between relative age within the school year, age at ADHD diagnosis, and year of diagnosis (1998-2003 vs 2004-11). FINDINGS: Between Jan 1, 1998, and Dec 31, 2011, 6136 children with ADHD were identified. Compared with the oldest children in the school year (ie, those born between January and April), the cumulative incidence of an ADHD diagnosis was greatest for the youngest children (ie, those born between September and December); for boys the incidence ratio was 1.26 (95% CI 1.18-1.35; p<0.0001) and for girls it was 1.31 (1.12-1.54; p=0.0007). The association between relative age and age at ADHD diagnosis reflected children diagnosed before age 10 years, and the strength of this association increased during recent years (2004-11). Thus, compared with children born between January and April, for those born between May and August, the ADHD incidence ratio was 1.37 (95% CI 1.24-1.53; p<0.0001) and for those born between September and December, the incidence ratio was 1.64 (1.48-1.81; p<0.0001). The relative age effect was not accounted for by comorbid disorders such as CD, ODD, or LD. INTERPRETATION: In a health service system with low prescribing rates for ADHD, a younger relative age is associated with an increased likelihood of receiving a clinical diagnosis of ADHD. This effect has increased in recent years. Teachers, parents, and clinicians should take relative age into account when considering the possibility of ADHD in a child or encountering a child with a pre-existing diagnosis. FUNDING: Academy of Finland, Finnish Medical Foundation, Orion Pharma Foundation, Finnish Cultural Foundation. PMID- 29033007 TI - Anthropogenic factors influencing invasive ascidian establishment in natural environments. AB - Marine environments are constantly impacted by bioinvasions. Invasive ascidians (Chordata, Tunicata) are well-known for their ability to rapidly overgrow any available substrate. While the majority of studies have investigated the factors contributing to the successful establishment of ascidians on artificial substrates, the anthropogenic factors that contribute to such establishment on natural substrates have rarely been investigated. Here, we studied non-indigenous ascidians presence on natural substrate for the first time, using underwater field surveys at eight natural sites along the Israeli Mediterranean coast, in order to provide an analysis of factors assisting their establishment. The findings revealed that sites exposed to extended sewage-spill events experimented a reduction in native ascidian species. Understanding which factors alter ascidian population is essential for further monitoring efforts, to protect areas that are more susceptible to invasion, and for developing effective management tools to control further spread of invasive species in natural environments. PMID- 29033009 TI - Lead extraction - Aspects beyond the procedure. PMID- 29033008 TI - Safety and Long-Term Efficacy of AAV4 Gene Therapy in Patients with RPE65 Leber Congenital Amaurosis. AB - The aim of this study was the evaluation of the safety and efficacy of unilateral subretinal injection of the adeno-associated vector (AAV) serotypes 2 and 4 (AAV2/4) RPE65-RPE65 vector in patients with Leber congenital amaurosis (LCA) associated with RPE65 gene deficiency. We evaluated ocular and general tolerance and visual function up to 1 year after vector administration in the most severely affected eye in nine patients with retinal degeneration associated with mutations in the RPE65 gene. Patients received either low (1.22 * 1010 to 2 * 1010 vector genomes [vg]) or high (between 3.27 * 1010 and 4.8 * 1010 vg) vector doses. An ancillary study, in which six of the original nine patients participated, extended the follow-up period to 2-3.5 years. All patients showed good ophthalmological and general tolerance to the rAAV2/4-RPE65-RPE65 vector. We observed a trend toward improved visual acuity in patients with nystagmus, stabilization and improvement of the visual field, and cortical activation along visual pathways during fMRI analysis. OCT analysis after vector administration revealed no retinal thinning, except in cases of macular detachment. Our findings show that the rAAV2/4.RPE65.RPE65 vector was well tolerated in nine patients with RPE65-associated LCA. Efficacy parameters varied between patients during follow up. PMID- 29033010 TI - Stethoscope: A short autobiography. PMID- 29033011 TI - Usefulness of positron emission tomography (PET)/contrast-enhanced computed tomography (CE-CT) in discriminating between malignant and benign intraductal papillary mucinous neoplasms (IPMNs). AB - BACKGROUND/OBJECTIVES: We evaluated the usefulness of positron emission tomography (PET)/contrast-enhanced computed tomography (CE-CT) in discriminating between malignant and benign intraductal papillary mucinous neoplasms (IPMNs). METHODS: PET/CE-CT imaging was conducted on 29 IPMN lesions, which subsequently underwent surgery. Preoperative findings on PET/CE-CT imaging were compared with the histological findings of the resected specimens to determine the diagnostic accuracy of PET/CE-CT imaging for evaluation of the differential diagnosis between benign and malignant IPMNs. RESULTS: The final diagnoses of the 29 IPMN lesions were 9 benign and 20 malignant. Overall, 18 of the 20 malignant cases were positive for FDG uptake, while 7 of 9 benign cases were negative. The sensitivity, specificity, and diagnostic accuracy for benign/malignant differentiation using FDG uptake as a marker were 90.0%, 77.8%, and 86.2%, respectively. When guideline-based high-risk findings were used as markers, sensitivity, specificity, and diagnostic accuracy for mural nodules were 50.0%, 66.7%, and 55.2%, while they were 40.0%, 56%, and 48.3% for main duct dilatation, respectively. CONCLUSIONS: FDG uptake on PET is a useful new marker for malignancy in benign/malignant differentiation. Because PET/CE-CT imaging is a noninvasive imaging modality that can evaluate FDG uptake in addition to the conventional high-risk findings, we believe it should be the first-line method for determining therapeutic approaches to IPMN. PMID- 29033013 TI - Clinical Prognosis of Superior Versus Basal Segment Stage I Non-Small Cell Lung Cancer. AB - BACKGROUND: Despite its extensive size, variations in the clinicopathologic features of tumors in the lower lobe have been little studied. The present study investigated the prognostic differences in tumors originating from the superior and basal segments of the lower lobe in patients with non-small cell lung cancer. METHODS: Data of 134 patients who underwent lobectomy or segmentectomy with systematic nodal dissection for clinical stage I, radiologically solid-dominant, non-small cell lung cancer in the superior segment (n = 60) or basal segment (n = 74) between April 2007 and December 2015 were retrospectively reviewed. Factors affecting survival were assessed by the Kaplan-Meier method and Cox regression analyses. RESULTS: Prognosis in the superior segment group was worse than that in the basal segment group (5-year overall survival rates 62.6% versus 89.9%, p = 0.0072; and 5-year recurrence-free survival rates 54.4% versus 75.7%, p = 0.032). In multivariable Cox regression analysis, a superior segment tumor was an independent factor for poor overall survival (hazard ratio 3.33, 95% confidence interval: 1.22 to 13.5, p = 0.010) and recurrence-free survival (hazard ratio 2.90, 95% confidence interval: 1.20 to 7.00, p = 0.008). The superior segment group tended to have more pathologic mediastinal lymph node metastases than the basal segment group (15.0% versus 5.4%, p = 0.080). CONCLUSIONS: Tumor location was a prognostic factor for clinical stage I non-small cell lung cancer in the lower lobe. Patients with superior segment tumors had worse prognosis than patients with basal segment tumors, with more metastases in mediastinal lymph nodes. PMID- 29033012 TI - Timeliness of Care and Lung Cancer Tumor-Stage Progression: How Long Can We Wait? AB - BACKGROUND: Timely care of lung cancer is presumed critical, yet clear evidence of stage progression with delays in care is lacking. We investigated the reasons for delays in treatment and the impact these delays have on tumor-stage progression. METHODS: We queried our retrospective database of 265 veterans who underwent cancer resection from 2005 to 2015. We extracted time intervals between nodule identification, diagnosis, and surgical resection; changes in nodule radiographic size over time; final pathologic staging; and reasons for delays in care. Pearson's correlation and Fisher's exact test were used to compare cancer growth and stage by time to treatment. RESULTS: Median time from referral to surgical evaluation was 11 days (interquartile range, 8 to 17). Median time from identification to therapeutic resection was 98 days (interquartile range, 66 to 139), and from diagnosis to resection, 53 days (interquartile range, 35 to 77). Sixty-eight patients (26%) were diagnosed at resection; the remainder had preoperative tissue diagnoses. No significant correlation existed between tumor growth and time between nodule identification and resection, or between tumor growth and time between diagnosis and resection. Among 197 patients with preoperative diagnoses, 42% (83) had intervals longer than 60 days between diagnosis and resection. Most common reasons for delay were cardiac clearance, staging, and smoking cessation. Larger nodules had fewer days between identification and resection (p = 0.03). CONCLUSIONS: Evaluation, staging, and smoking cessation drive resection delays. The lack of association between tumor growth and time to treatment suggests other clinical or biological factors, not time alone, underlie growth risk. Until these factors are identified, delays to diagnosis and treatment should be minimized. PMID- 29033014 TI - Clinicopathologic Features of Submucosal Esophageal Squamous Cell Carcinoma. AB - BACKGROUND: The prognoses of submucosal esophageal squamous cell carcinoma patients vary. Patients with favorable prognoses may receive less invasive or nonsurgical interventions, whereas patients with poor prognoses or advanced esophageal cancer may require aggressive treatments. We sought to identify prognostic factors for patients with submucosal esophageal squamous cell carcinoma, focusing on lymph node metastasis and recurrence. METHODS: We included 137 submucosal esophageal squamous cell carcinoma patients who had undergone transthoracic esophagectomy with systematic extended lymph node dissection. Submucosal tumors were classified as SM1, SM2, and SM3 according to the depth of invasion. Prognostic factors were determined by univariable and multivariable analyses. RESULTS: Lymph node metastasis was observed in 18.8%, 30.5%, and 50.0% of SM1, SM2, and SM3 cases, respectively. The overall 5-year recurrence rate was 21.9%; the rates for SM1, SM2, and SM3 tumors were 9.4%, 18.6%, and 34.8%, respectively. The SM1 tumors all recurred locoregionally; distant metastasis occurred in SM2 and SM3 cases. The 5-year overall survival rates were 83%, 77%, and 59% for SM1, SM2, and SM3 cases, respectively. On univariable analysis, lymph node metastasis, depth of submucosal invasion (SM3 versus SM1/2), and tumor location (upper thoracic versus mid/lower thoracic) were poor prognostic factors for overall survival. Multivariable Cox regression analyses identified depth of submucosal invasion (hazard ratio 2.51, 95% confidence interval: 1.37 to 4.61) and tumor location (hazard ratio 2.43, 95% confidence interval: 1.18 to 4.63) as preoperative prognostic factors. CONCLUSIONS: Tumor location (upper thoracic) and infiltration (SM3) are the worse prognostic factors of submucosal esophageal squamous cell carcinoma, but lymph node metastasis is not a predictor of poorer prognosis. PMID- 29033015 TI - Analyzing Effectiveness of Routine Pleural Drainage After Nuss Procedure: A Randomized Study. AB - BACKGROUND: The routine use of postoperative pleural cavity drainage after the Nuss procedure is not widely accepted, and its limited use depends on experience. This study analyzed the influence of pleural drainage in the surgical treatment of patients with pectus excavatum on the prevention of pneumothorax and the efficacy of using drainage after a corrective operation. METHODS: From November 2013 to May 2015, 103 consecutive patients with pectus excavatum, aged 11 to 39 years, underwent surgical treatment by the Nuss procedure. Patients were prospectively randomized into two groups. In 58 patients, a 28F chest tube was routinely introduced into the right pleural cavity during procedure for 2 consecutive days (group I). In the remaining 45 patients, the drain was not inserted (group II). RESULTS: No statistically significant differences were found between the study groups, including sex, age, body mass index, or clinical subjective and objective factors in the preoperative evaluation. Group II manifested more complications in the early postoperative period; however, this was not statistically significant (group I vs group II; p = 0.0725). Pneumothorax requiring additional chest tube placement was statistically significant (group I vs group II; p = 0.0230). Other complications were also more frequent among patients from group II, although this did not reach statistical significance. Follow up was 22.9 +/- 6.4 months. CONCLUSIONS: Routine drainage of the pleural cavity during the Nuss procedure significantly reduces the incidence of postoperative pneumothorax and should be considered as a routine procedure. PMID- 29033016 TI - Positron Emission Tomography in Thymic Tumors: Analysis Using a Prospective Research Database. AB - BACKGROUND: Positron emission tomography may have a role in the pretreatment workup of patients with thymic malignancies. This study was undertaken to determine the utility of the maximum standardized uptake value (SUVmax) in predicting histologic type and tumor stage in a large cohort of thymic epithelial tumors. METHODS: The large, multiinstitutional, prospective database of The International Thymic Malignancy Interest Group (ITMIG) was queried for the use of positron emission tomography in the pretreatment workup of patients with thymic tumors. Data analyzed included demographics, SUVmax, histologic tumor type, and tumor stage. The distribution of SUVmax according to histologic type and Masaoka Koga pathologic stage was determined, and the ability of SUVmax to predict these two variables was calculated using analysis of receiver operating characteristic curves. RESULTS: Since 2012, data from 926 patients with thymic malignancies were entered into the ITMIG prospective database, of which 154 had a reported value for SUVmax. The area under the receiver operating characteristic curve for SUVmax in predicting histologic type and pathologic stage was 0.79 (95% confidence interval, 0.70 to 0.88; p < 0.001) and 0.81 (95% confidence interval, 0.73 to 0.88; p < 0.001), respectively. In addition, there was a significant relationship between SUVmax and histologic type (p < 0.001) as well as Masaoka-Koga pathologic stage (p < 0.001). CONCLUSIONS: Positron emission tomography has utility in predicting clinicopathologic features of thymic malignancies. These results may have clinical application in the pretreatment workup of patients with these rare tumors. PMID- 29033017 TI - Neurocognitive and Psychological Outcomes in Adults With Dextro-Transposition of the Great Arteries Corrected by the Arterial Switch Operation. AB - BACKGROUND: Neurodevelopmental impairments have frequently been described in children and adolescents with dextro-transposition of the great arteries (d-TGA). The arterial switch operation (ASO) to correct d-TGA has been used for more than 30 years, and more than 90% of these patients now reach adulthood. However, very little is known about their long-term functional outcomes. The present study investigated neurocognitive outcomes and the prevalence of psychiatric disorders in adults with d-TGA corrected by ASO. METHODS: Neurocognitive functioning was comprehensively assessed (general intellectual functioning, language, attention, visual-spatial skills, executive functions, memory) in 67 adults (59.7% men) with d-TGA (aged 22.9 +/- 3.4 years) and in 43 healthy individuals. The prevalence of psychiatric disorders, including depression and anxiety, was evaluated using a structured diagnostic interview. We also analyzed patient- and operative-related risk factors associated with outcomes. RESULTS: Compared with the general population and the control group, adults with d-TGA displayed reduced performance in tasks assessing attention, visual-spatial skills, executive functions, and memory (all p < 0.05). Compared with controls, patients had also a higher lifetime prevalence of depression (43% vs 19%, p = 0.008) and anxiety disorders (54% vs 33%, p = 0.025). Predictors of long-term outcomes included gender and parental socioeconomic and educational status (all p < 0.05). CONCLUSIONS: Adults who have undergone a neonatal ASO to correct d-TGA have an increased risk of cognitive deficits and psychiatric disorders. Evaluation of long-term neuropsychological and psychosocial outcomes in early adulthood is a crucial step to anticipate for adapted treatment strategies in adults with congenital heart disease. PMID- 29033018 TI - Irradiated recycled plastic as a concrete additive for improved chemo-mechanical properties and lower carbon footprint. AB - Concrete production contributes heavily to greenhouse gas emissions, thus a need exists for the development of durable and sustainable concrete with a lower carbon footprint. This can be achieved when cement is partially replaced with another material, such as waste plastic, though normally with a tradeoff in compressive strength. This study discusses progress toward a high/medium strength concrete with a dense, cementitious matrix that contains an irradiated plastic additive, recovering the compressive strength while displacing concrete with waste materials to reduce greenhouse gas generation. Compressive strength tests showed that the addition of high dose (100kGy) irradiated plastic in multiple concretes resulted in increased compressive strength as compared to samples containing regular, non-irradiated plastic. This suggests that irradiating plastic at a high dose is a viable potential solution for regaining some of the strength that is lost when plastic is added to cement paste. X-ray Diffraction (XRD), Backscattered Electron Microscopy (BSE), and X-ray microtomography explain the mechanisms for strength retention when using irradiated plastic as a filler for cement paste. By partially replacing Portland cement with a recycled waste plastic, this design may have a potential to contribute to reduced carbon emissions when scaled to the level of mass concrete production. PMID- 29033019 TI - Processing of mycotoxin contaminated waste streams through anaerobic digestion. AB - Food and feed stocks heavily contaminated with mycotoxins are rendered unfit for consumption and therefore discarded as waste. Due to the lack of guidelines and in accordance with the prudent avoidance principle, these waste streams are often incinerated. For better valorization, these streams could be used as input for anaerobic digestion. However, the degradation of multiple mycotoxins during anaerobic digestion and their effect on the methane production is currently unknown. In batch tests spiked with mycotoxins, aflatoxin B1, ochratoxin A, deoxynivalenol, zearalenone and T-2 toxin were degraded for more than 90%. For mesophile and thermophile digestion respectively, fumonisin B1 was degraded for 70% and 85%, and most ergot alkaloids for 64% and 98%. Neither biogas production, nor methane production were influenced by the presence of the mycotoxins. Subsequently, semi-continuous reactors fed with contaminated maize resulted in more than 99% degradation for all mycotoxins after 1.8 hydraulic retention time with stable biogas production and process parameters. This study shows that mycotoxin contaminated organic waste can be safely valorized to methane while the digestate is void of mycotoxin residues. PMID- 29033020 TI - The seasonal evolution of fruit, vegetable and yard wastes by mono, co and tri digestion at Hyderabad, Sindh Pakistan. AB - The contribution of biowastes in municipal solid waste (MSW) is increasing day by day and being dumped in open atmosphere along with other wastes in every city of Pakistan. This study was formulated to evaluate the feasibility of biowastes such as fruit, vegetable and yard wastes of different seasons individual and mixing at different ratios to optimize methane production at Hyderabad Sindh, Pakistan. Batch digestion of selected samples was conducted for 40 days under mesophilic condition. Methane yield of individual fruit, vegetable and yard wastes (FrVYW) of summer and winter season was obtained in the range of 0.36-0.40 L/g VS and 0.39-0.44 L/g VS added respectively. The results of co-digestion of FrVYW of summer and winter season were observed in the range of 0.42-0.45 L/g VS added and 0.46 to 0.54 L/g VS added respectively. The results of tri-digestion of FrVYW of summer and winter season were achieved in the range of 0.46-0.53 L/g VS added and 0.56-0.62 L/g VS added respectively. Findings of study showed that methane production potential of tri-digestions were highest than all of others and that of co-digestion were higher than mono-digestion of FrVYW. Overall results of study concluded that tri-digestion of FrVYW at the equal blending ratio reported highest methane potential. Therefore, the study recommended that tri-digestion of FrVYW at equal mixing ratio is an optimal ratio for anaerobic digestion process to yield maximum methane production from FrVYW. PMID- 29033021 TI - [Smoking cessation and pregnancy]. AB - Active and passive smoking during pregnancy induce several deleterious effects that may have a negative impact on pregnancy progress, fetus development and both mother and newborn health. Smoking cessation should be a rule for any woman as soon as the beginning of her pregnancy, or better in anticipation of a pregnancy when contraception is no more taken. Every caregiver must help every pregnant woman who smokes to quit smoking. Smoking cessation interventions in pregnant women must combine a psychological support (mainly with cognitive behavioral therapy) and nicotine replacement therapy, which can also be used during breast feeding. It is recommended to adjust the dosage of nicotine replacement therapy according to the symptoms of under or over dosage at the end of the first week of use. On the other hand, vareniclin and bupropion are contra-indicated during pregnancy or breast-feeding. Electronic cigarette is not advised during pregnancy. Prevention of smoking relapse in postpartum period is essential since a percentage as high as 50% of women having quit during their pregnancy resume smoking during the 6 months following delivery. PMID- 29033022 TI - [Fetal biometry: It is time for change]. PMID- 29033023 TI - Outcomes of pediatric delayed facial palsy after head trauma. AB - OBJECTIVE: To analyze clinical outcomes of delayed facial palsy after head trauma in the pediatric population. METHODS: A total of 45 pediatric cases with delayed facial palsy after head trauma were conservatively or surgically treated in our hospital between January 2009 and January 2015, and they were followed up for one year after the corresponding treatment. The clinical data were collected and the outcomes of facial nerve were analyzed. RESULTS: During the one-year follow-up, 33 cases (82.5%) completely recovered, and 5 cases (12.5%) recovered to Grade II among the 40 cases accepting conservative treatment. For the 5 surgically treated cases, 4 cases (80.0%) recovered to Grade I or Grade II, and one case recovered to Grade III. CONCLUSION: The outcomes of pediatric delayed facial palsy after head trauma were generally satisfactory. PMID- 29033024 TI - A Predictive Model for a Reputation-Based General Surgery Residency Match and a Novel Online Calculator. AB - OBJECTIVE: This study aimed to identify medical student characteristics that predict a successful categorical match into a general surgery residency and a match based upon Doximity program rankings. DESIGN: This was a retrospective study that analyzed academic and personal predictors of a successful general surgery residency match. SETTING: This study was set at the University of Alabama at Birmingham School of Medicine, a public medical school. PARTICIPANTS: This study included 173 fourth-year medical students at a public medical school who matched into general surgery residency programs. METHODS: Our cohort comprised students graduating from our institution between 2004 and 2015 that matched into preliminary or categorical general surgery positions. We collected academic variables and performed univariate analyses and logistic regression to examine the likelihood of specific match outcomes. RESULTS: Of 173 students, 132 (76%) matched into a categorical position and 41 (24%) matched into a preliminary position. Of all variables, clinical ranking quartile was most effective in predicting a categorical match (R2 = 0.35). Models for a match based upon Doximity ranking lacked the same predictive power. CONCLUSIONS: This research identifies students that are at risk for not matching into a categorical position and predicts competitiveness for certain programs. It provides a novel calculator to give applicants easily interpretable match probabilities. PMID- 29033025 TI - The clinical utility of immunoglobulin G4 in the evaluation of autoimmune pancreatitis and pancreatic adenocarcinoma. AB - BACKGROUND: Elevation in the serum immunoglobulin-G4 (IgG4) level has been used as a diagnostic marker to distinguish autoimmune pancreatitis (AIP) from pancreatic ductal adenocarcinoma (PDAC), but its true utility is ill-defined. This study evaluates the clinical utility of IgG4 in differentiating AIP from PDAC. METHODS: All patients evaluated in the hepatopancreaticobiliary surgery clinics with measured serum IgG4 were included. Patients were divided into normal IgG4 (<135 mg/dL) and elevated IgG4 (>=135 mg/dL) groups. The final diagnosis was determined by operative pathology when available or by clinical outcome. The sensitivity, specificity, PPV, and NPV of IgG4 for diagnosing AIP was assessed. RESULTS: Between 1997 and 2015, 298 patients were identified. Normal IgG4 levels were present in 85% of patients (254/298), while 15% (44/298) were elevated. The overall prevalence of AIP was 17% (52/298). The sensitivity and specificity of IgG4 for AIP was 67% and 96%, respectively; however, the PPV was only 80%, including a 9% occurrence of PDAC in patients with an elevated IgG4. CONCLUSION: In this study of selected patients who underwent IgG4 testing, 9% of elevated IgG4 patients had PDAC. The overreliance on IgG4 as diagnostic for AIP may lead to mis-diagnosis and delayed treatment for PDAC. PMID- 29033026 TI - Economic impact of rapid diagnostic methods in Clinical Microbiology: Price of the test or overall clinical impact. AB - The need to reduce the time it takes to establish a microbiological diagnosis and the emergence of new molecular microbiology and proteomic technologies has fuelled the development of rapid and point-of-care techniques, as well as the so called point-of-care laboratories. These laboratories are responsible for conducting both techniques partially to response to the outsourcing of the conventional hospital laboratories. Their introduction has not always been accompanied with economic studies that address their cost-effectiveness, cost benefit and cost-utility, but rather tend to be limited to the unit price of the test. The latter, influenced by the purchase procedure, does not usually have a regulated reference value in the same way that medicines do. The cost effectiveness studies that have recently been conducted on mass spectrometry in the diagnosis of bacteraemia and the use of antimicrobials have had the greatest clinical impact and may act as a model for future economic studies on rapid and point-of-care tests. PMID- 29033028 TI - The implications and applications of learning via instructions. AB - Whereas psychology knows a long tradition of studies that focused on the role of practice and training in acquiring new skills or knowledge, systematic studies into learning via instructions remain relatively scarce. This is surprising given the tremendous influence instructions have on human behavior and cognition. In recent years, however, a (re)new(ed) interest into learning via instructions resulted in new paradigms and findings that can inspire future research in this understudied domain. We offer a brief overview of the articles in this special issue, which present some of the latest empirical developments dedicated to unraveling the implications and applications of learning via instructions. The special issue offers insights into the dynamics underlying the assimilation of new instructions and highlights the strengths and limitations of what can be achieved on the basis of instructions. Furthermore, the different studies showcase various examples of recent methodological advances in testing the effects of instructions. Finally, this special issue shows how different fields in psychology share similar questions on the role of instructions in human behavior, suggesting that this topic should no longer be considered as a subsidiary of these different fields, but as a research field on its own. PMID- 29033029 TI - Corrigendum to "Comparison of three cognitive exams in cardiac arrest survivors" [Resuscitation 116 (2017) 98-104]. PMID- 29033030 TI - How to use stem cells for repair in stroke patients. AB - Regenerative cell therapy is a promising therapeutic strategy in neurology, most notably to improve stroke recovery. Although tolerability and feasibility have apparently been validated, many questions remain as to what is the best type of cells to use, the best route and the post-stroke delay for administration. Two main strategies have currently emerged: intravenous injection of mesenchymal stem cells with systemic trophic support; and intracerebral grafting of neural stem cells with brain repair effects at the lesion site. Multicenter clinical trials have just begun and are starting to assess the efficacy of these treatments on functional recovery. However, experimental studies also need to be conducted in parallel to precisely identify the mechanisms of action regarding the pathophysiology of brain plasticity, notably when stroke occurs with comorbidities. Such studies should also evaluate the potential of cell grafting combined with injectable biomaterials. PMID- 29033027 TI - Anhedonia Following Early-Life Adversity Involves Aberrant Interaction of Reward and Anxiety Circuits and Is Reversed by Partial Silencing of Amygdala Corticotropin-Releasing Hormone Gene. AB - BACKGROUND: Anhedonia, the diminished ability to experience pleasure, is an important dimensional entity linked to depression, schizophrenia, and other emotional disorders, but its origins and mechanisms are poorly understood. We have previously identified anhedonia, manifest as decreased sucrose preference and social play, in adolescent male rats that experienced chronic early-life adversity/stress (CES). Here we probed the molecular, cellular, and circuit processes underlying CES-induced anhedonia and tested them mechanistically. METHODS: We examined functional brain circuits and neuronal populations activated by social play in adolescent CES and control rats. Structural connectivity between stress- and reward-related networks was probed using high-resolution diffusion tensor imaging, and cellular/regional activation was probed using c Fos. We employed viral-genetic approaches to reduce corticotropin-releasing hormone (Crh) expression in the central nucleus of the amygdala in anhedonic rats, and tested for anhedonia reversal in the same animals. RESULTS: Sucrose preference was reduced in adolescent CES rats. Social play, generally considered an independent measure of pleasure, activated brain regions involved in reward circuitry in both control and CES groups. In CES rats, social play activated Crh expressing neurons in the central nucleus of the amygdala, typically involved in anxiety/fear, indicating aberrant functional connectivity of pleasure/reward and fear circuits. Diffusion tensor imaging tractography revealed increased structural connectivity of the amygdala to the medial prefrontal cortex in CES rats. Crh-short hairpin RNA, but not control short hairpin RNA, given into the central nucleus of the amygdala reversed CES-induced anhedonia without influencing other emotional measures. CONCLUSIONS: These findings robustly demonstrate aberrant interactions of stress and reward networks after early-life adversity and suggest mechanistic roles for Crh-expressing amygdala neurons in emotional deficits portending major neuropsychiatric disorders. PMID- 29033031 TI - The next challenges for optimal reperfusion in the era of mechanical thrombectomy. AB - The therapeutic management of acute ischemic stroke has changed tremendously over the past few years. Mechanical thrombectomy in addition to intravenous tissue plasminogen activator (t-PA) is currently the standard of care for patients experiencing acute ischemic stroke as a consequence of large vessel occlusion of the anterior circulation. Yet, despite strong evidence supporting such a therapeutic approach, several issues remain a source of debate, such as the need for intravenous t-PA, the optimal target for blood pressure levels and the opportunity for additional antithrombotic therapies to improve reperfusion. Given this perspective, periprocedural patient management is probably the next step to come with considerable changes. PMID- 29033033 TI - Corrections. PMID- 29033035 TI - An effective and safe vaccine will not be enough to prepare us for the next Ebola outbreak. PMID- 29033036 TI - Surgery for acute type A aortic dissection on oral anticoagulants: Being the dispatcher of a 911 call. PMID- 29033032 TI - Ring vaccination with rVSV-ZEBOV under expanded access in response to an outbreak of Ebola virus disease in Guinea, 2016: an operational and vaccine safety report. AB - BACKGROUND: In March, 2016, a flare-up of Ebola virus disease was reported in Guinea, and in response ring vaccination with the unlicensed rVSV-ZEBOV vaccine was introduced under expanded access, the first time that an Ebola vaccine has been used in an outbreak setting outside a clinical trial. Here we describe the safety of rVSV-ZEBOV candidate vaccine and operational feasibility of ring vaccination as a reactive strategy in a resource-limited rural setting. METHODS: Approval for expanded access and compassionate use was rapidly sought and obtained from relevant authorities. Vaccination teams and frozen vaccine were flown to the outbreak settings. Rings of contacts and contacts of contacts were defined and eligible individuals, who had given informed consent, were vaccinated and followed up for 21 days under good clinical practice conditions. FINDINGS: Between March 17 and April 21, 2016, 1510 individuals were vaccinated in four rings in Guinea, including 303 individuals aged between 6 years and 17 years and 307 front-line workers. It took 10 days to vaccinate the first participant following the confirmation of the first case of Ebola virus disease. No secondary cases of Ebola virus disease occurred among the vaccinees. Adverse events following vaccination were reported in 47 (17%) 6-17 year olds (all mild) and 412 (36%) adults (individuals older than 18 years; 98% were mild). Children reported fewer arthralgia events than adults (one [<1%] of 303 children vs 81 [7%] of 1207 adults). No severe vaccine-related adverse events were reported. INTERPRETATION: The results show that a ring vaccination strategy can be rapidly and safely implemented at scale in response to Ebola virus disease outbreaks in rural settings. FUNDING: WHO, Gavi, and the World Food Programme. PMID- 29033037 TI - Takotsubo syndrome spreads its tentacles to congenital heart disease. PMID- 29033038 TI - Discussion. PMID- 29033034 TI - Antimicrobial resistance among children in sub-Saharan Africa. AB - Antimicrobial resistance is an important threat to international health. Therapeutic guidelines for empirical treatment of common life-threatening infections depend on available information regarding microbial aetiology and antimicrobial susceptibility, but sub-Saharan Africa lacks diagnostic capacity and antimicrobial resistance surveillance. We systematically reviewed studies of antimicrobial resistance among children in sub-Saharan Africa since 2005. 18 of 1075 articles reviewed met inclusion criteria, providing data from 67 451 invasive bacterial isolates from inconsistently defined populations in predominantly urban tertiary settings. Among neonates, Gram-negative organisms were the predominant cause of early-onset neonatal sepsis, with a high prevalence of extended-spectrum beta-lactamase-producing organisms. Gram-positive bacteria were responsible for a high proportion of infections among children beyond the neon atal period, with high reported prevalence of non-susceptibility to treatment advocated by the WHO therapeutic guidelines. There are few up-to-date or representative studies given the magnitude of the problem of antimicrobial resistance, especially regarding community-acquired infections. Research should focus on differentiating resistance in community-acquired versus hospital acquired infections, implementation of standardised reporting systems, and pragmatic clinical trials to assess the efficacy of alternative treatment regimens. PMID- 29033039 TI - Aldo R. Castaneda, MD, PhD: Recipient of the Lifetime Achievement Award and 74th president of The American Association for Thoracic Surgery. PMID- 29033040 TI - Beware of interrupting aortic-to-visceral collaterals! PMID- 29033041 TI - Short-term venoarterial extracorporeal membrane oxygenation for massive endobronchial hemorrhage after pulmonary endarterectomy. AB - OBJECTIVES: Pulmonary endarterectomy (PEA) is the only curative treatment option for patients with chronic thromboembolic pulmonary hypertension. Massive endobronchial bleeding that precludes weaning from cardiopulmonary bypass is an often-fatal complication of PEA. The aim of this study was to determine whether short-term extracorporeal membrane oxygenation (ECMO) is a safe and feasible procedure in patients with severe endobronchial bleeding. METHODS: From January 2014 to December 2016, 396 patients (mean age 60 +/- 18 years, 54.5% male) underwent PEA in our department. Patients with severe endobronchial hemorrhage at the time of weaning from cardiopulmonary bypass (CPB) were switched to a heparin coated venoarterial ECMO circuit. After full-dose protamine administration to restore normal coagulation, weaning from ECMO was attempted in the operating room. RESULTS: In-hospital mortality was 2.3% (9/396 patients). Eight patients (2.0%) developed severe endobronchial bleeding classified as diffuse (n = 6) or localized (n = 2) by bronchoscopy. After reinstitution of CPB and subsequent switch to ECMO, the mean duration of ECMO support was 49 +/- 13 minutes, and all 8 patients were weaned successfully from ECMO in the operating theater without further signs of endobronchial bleeding. One patient needed venovenous ECMO support for poor oxygenation 6 hours after surgery. Seven patients were discharged after a prolonged postoperative stay of 17.6 +/- 4.1 days. One patient died. This new concept significantly reduced mortality compared with previous (2009-2013) ECMO support (P = .0406). CONCLUSIONS: For patients with massive endobronchial bleeding after PEA, the intraoperative switch from CPB to venoarterial ECMO support with full-dose protamine administration is a new and potentially life-saving treatment concept. PMID- 29033042 TI - Ascending aortopathy with bicuspid aortic valve: Individualizing the threshold. PMID- 29033044 TI - Postoperative atrial fibrillation: Still in search of truth or a neglected complication? PMID- 29033045 TI - Finally, new conversations about video-assisted thoracoscopic surgical lobectomy. PMID- 29033043 TI - In vivo lung perfusion rehabilitates sepsis-induced lung injury. AB - BACKGROUND: Sepsis is the leading cause of lung injury in adults and can lead to acute respiratory distress syndrome (ARDS). Using a novel technique of isolated in vivo lung perfusion (IVLP), we hypothesized that normothermic IVLP will improve oxygenation and compliance in a porcine model of sepsis-induced lung injury. METHODS: Mature adult swine (n = 8) were administered lipopolysaccharide (LPS; 50 MUg/kg over 2 hours) via the external jugular vein, followed by sternotomy and central extracorporeal membrane oxygenation (ECMO) cannulation (right atrium to ascending aorta). The left pulmonary artery (inflow) and left superior and inferior pulmonary veins (outflow) were dissected out and cannulated to deliver isolated perfusion to the left lung. After 4 hours of normothermic IVLP with Steen solution, the left lung then underwent 4 hours of reperfusion after IVLP decannulation. Airway pressures and lung-specific pulmonary vein blood gases from the right lung (LPS control) and left lung (LPS + IVLP) of the same animal were compared. RESULTS: All animals demonstrated a significant reduction in the ratio of partial pressure of oxygen in arterial blood (PaO2)/fraction of inspired oxygen (FiO2) (P/F ratio) and total lung compliance at 2 hours after the start of LPS infusion (mean, 469 +/- 19.7 mm Hg vs 222.2 +/- 21.4 mm Hg; P < .0001). After reperfusion, 6 animals (75%) exhibited improved lung function, allowing for ECMO decannulation. Lung-specific oxygenation was superior in the left lung after 4 hours of reperfusion (mean, 310.5 +/- 54.7 mm Hg vs 201.1 +/- 21.7 mm Hg; P = .01). Similarly, total lung compliance improved after IVLP of the left lung. The lung wet weight to dry weight ratio demonstrated reduced edema in rehabilitated left lungs (mean, 6.5 +/- 0.3 vs 7.5 +/- 0.4; P = .04). CONCLUSIONS: IVLP successfully rehabilitated LPS-injured lungs compared to ECMO support alone in this preclinical porcine model. PMID- 29033046 TI - Eschar removal by bromelain based enzymatic debridement (Nexobrid(r)) in burns: An European consensus. AB - Early debridement and/or eschar removal is regarded as a significant step in the treatment of deep partial and full thickness burns. It aims to control wound bioburden and allows early wound closure by conservative treatment or skin grafting. Preservation of viable dermis accompanied by early wound closure, is regarded as a necessary step to reduce scar related complication, e.g. functional limitations and/or unaesthetic scar formation. Aside from the classical techniques of surgical excision as tangential excision for eschar removal, hydro surgery, maggot therapy, laser, enzymatic debridement have been described as additional techniques in the burn surgeon's armamentarium. It is widely accepted that early eschar removal within 72h improves the outcome of burn wound treatment by reducing bacterial wound colonization, infection and length of hospital stay. In contrast, the right technique for eschar removal is still a matter of debate. There is increasing evidence that enzymatic debridement is a powerful tool to remove eschar in burn wounds, reducing blood loss, the need for autologous skin grafting and the number of wounds requiring surgical excision. In order to assess the role and clinical advantages of enzymatic debridement by a mixture of proteolytic enzymes enriched in Bromelain (Nexobrid(r)) beyond the scope of the literature and in view of users' experience, a European Consensus Meeting was scheduled. The aim was to provide statements for application, based on the mutual experience of applying enzymatic debridement in more than 500 adult and pediatric patients by the consensus panelists. Issues to be addressed were: indications, pain management and anesthesia, timing of application, technique of application, after-intervention care, skin grafting after enzymatic debridement, blood loss, training strategies and learning curve and areas of future research needs. Sixty eight (68) consensus statements were provided for the use of enzymatic debridement. The degree of consensus was remarkably high, with a unanimous consensus in 88.2% of statements, and lowest degree of consensus of 70% in only 3 statements. This consensus document may serve as preliminary guideline for the use of enzymatic debridement with user-oriented recommendations until further evidence and systematic guidelines are available. PMID- 29033047 TI - Effect of Hemodialysis on Levels of High-Sensitivity Cardiac Troponin T. AB - Cardiac troponin (cTn) is essential for the diagnosis of an acute coronary syndrome (ACS). However, in end-stage renal disease (ESRD) baseline cTn levels are often elevated, and it is unknown whether the hemodialysis (HD) procedure affects cTn levels. This leaves clinicians unsure of how to interpret cTn in HD patients with cardiac ischemia. We therefore sought to determine if plasma levels of high-sensitivity cardiac troponin T (hs-cTnT) vary during or after HD treatment. We prospectively enrolled 10 chronic HD patients who were admitted to our institution. All participants were receiving thrice weekly HD before admission and were medically stable. Those admitted for ACS or to critical care units were excluded. Baseline hs-cTnT was measured immediately before HD. For the subsequent 6 hours, hs-cTnT was measured every 2 hours and every 3 hours thereafter for a total collection period of 24 hours. A significant decline in mean hs-cTnT was noted with HD. During HD (2 hours after HD initiation), hs-cTnT decreased by 10.7% (confidence interval 5% to 17%). Immediately after HD (4 hours after HD initiation), a decline of 12% (confidence interval 5% to 19%) was observed. Thereafter hs-cTnT began to rise. Hs-cTnT levels returned to baseline by 11 hours after HD completion and remained stable for the reminder of the study. In conclusion, HD induces a short-lived negative bias in hs-cTnT. When measured for investigation of ACS, hs-cTnT concentration should be interpreted with respect to time of dialysis and specimen collection. PMID- 29033048 TI - Comparison of Outcome After Percutaneous Mitral Valve Repair With the MitraClip in Patients With Versus Without Atrial Fibrillation. AB - Percutaneous mitral valve repair with the MitraClip is an established treatment for patients with mitral regurgitation (MR) who are inoperable or at high risk for surgery. Atrial Fibrillation (AF) frequently coincides with MR, but only scarce data of the influence of AF on outcome after MitraClip is available. The aim of the current study was to compare the clinical outcome after MitraClip treatment in patients with versus without atrial fibrillation. Between January 2009 and January 2016, all consecutive patients treated with a MitraClip in 5 Dutch centers were included. Outcome measures were survival, symptoms, MR grade, and stroke incidence. In total, 618 patients were treated with a MitraClip. Patients with AF were older, had higher N-terminal B-type natriuretic peptide levels, more tricuspid regurgitation, less often coronary artery disease and a better left ventricular function. Survival of patients treated with the MitraClip was similar for patients with AF (82%) and without AF (non-AF; 85%) after 1 year (p = 0.30), but significantly different after 5-year follow-up (AF 34%; non-AF 47%; p = 0.006). After 1 month, 64% of the patients with AF were in New York Heart Association class I or II, in contrast to 77% of the patients without AF (p = 0.001). The stroke incidence appeared not to be significantly different (AF 1.8%; non-AF 1.0%; p = 0.40). In conclusion, patients with AF had similar 1-year survival, MR reduction, and stroke incidence compared with non-AF patients. However, MitraClip patients with AF had reduced long-term survival and remained more symptomatic compared with those without AF. PMID- 29033049 TI - Usefulness of CHADS2 and CHA2DS2-VASc Scores for Stroke Prediction in Patients With Cancer and Atrial Fibrillation. AB - Stroke prediction scores have not been validated in patients with cancer and atrial fibrillation (AF). We aimed to identify unique risk factors and evaluate validity of CHADS2 and CHA2DS2-VASc scores to predict risk of stroke and mortality. A retrospective review of all patients with cancer with pre-existing AF presenting from 2008 to 2014 was performed. Outcomes included ischemic stroke and mortality. Prognostic factors were identified with Fine and Gray regression for stroke and Cox proportional hazards analysis for survival. After excluding patients with hemorrhagic strokes, 2,037 patients were analyzed. Genitourinary cancers were the most common (29%) followed by gastrointestinal cancers (18%). Overall, 52% had CHADS2 >=2. At a median of 6.4 months, 74 patients (3.6%) developed an ischemic stroke. Increased CHADS2 score was associated with stroke (hazard ratio [HR] 1.41, 95% confidence interval [CI] 1.19 to 1.67; p <0.001). PMID- 29033050 TI - Temporal Trends in the Incidence, Prevalence, and Survival of Patients With Atrial Fibrillation From 2004 to 2016. AB - A growing epidemic of atrial fibrillation (AF) has been predicted, although no data on the AF burden has been reported for the United States since 2010. The objectives of this study were to (1) describe trends in AF incidence, prevalence, and postdiagnosis survival from 2004 to 2016 within a large health-care system and (2) extrapolate observed prevalence rates to the entire US population to estimate the national AF burden. This retrospective cohort study incorporates the patients and electronic medical record of the Geisinger Health System, an integrated health-care delivery system serving central and northeast Pennsylvania. Standardized incidence rates were calculated per 1,000 person-years by calendar year, and point prevalence rates estimated on July 1st of the respective years from 2004 to 2016. Rate ratios were estimated from Poisson regression as the annual relative change over time. A total of 464,363 patients met study inclusion criteria. Age- and sex-adjusted AF incidence rates increased over the study period: 4.7, 5.0, 5.8, and 6.2 in 2004, 2008, 2012, and 2016, respectively (rate ratio 1.03 per year, 95% confidence interval 1.02, 1.03). Age- and sex-adjusted prevalence rates increased consistently over time from 2.7%, 3.0%, 3.4%, to 4.1% in 2004, 2008, 2012, and 2016, respectively. In 2004, an estimated 6.1 million Americans had diagnosed AF, increasing to 6.7, 7.8, and 9.3 million in 2008, 2012, and 2016, respectively. Postdiagnosis survival has not improved in recent years. In conclusion, AF incidence and prevalence have increased steadily since 2004, whereas postdiagnosis survival has not improved. PMID- 29033051 TI - Genetics of restless legs syndrome: An update. AB - A major role of genetic factors in the risk of developing restless legs syndrome (RLS) is supported by the high frequency of positive family history of RLS in patients affected with this disease, and the higher concordance rates in monozygotic twins compared with dizygotic ones in twin studies. In this review we have focused on those reports describing inheritance patterns of RLS, genetic anticipation, the results of studies performed on positivity of family history of RLS, twin studies, linkage studies in familial RLS, genome-wide association studies (GWAS), exome sequencing studies, and case-control association studies on candidate genes in RLS. Although to date the causative gene(s) has(ve) not been definitively identified, a number of variants of several genes, most of them through GWAS, have been associated with RLS risk, the strongest candidates being variants of PTPRD, BTBD9, and MEIS1 genes. Despite results of several recent case control association studies which have suggested a possible contribution of heme oxygenase 1 (HMOX1) rs2071746 and vitamin D3 receptor (VDR) rs731236 variants, or the presence of allele 2 of the complex microsatellite repeat Rep1 within the alpha-synuclein (SNCA) gene promoter in modifying the risk for RLS, these studies need to be replicated in further studies involving different populations. PMID- 29033052 TI - Regular tachycardia despite Wenckebach atrioventricular conduction. AB - We present a 21-year-old woman status post orthotopic heart transplantation initially presenting with a regular narrow complex tachycardia at 159beats/min. With intravenous diltiazem the rhythm transitioned to a regular tachycardia at 106beats/min, 2/3rd of the initial heart rate. We demonstrate this to be a novel description of 3:2second-degree Mobitz type I atrioventricular block (Wenckebach) with the absence of the hallmark regularly irregular (grouped beating) pattern. PMID- 29033054 TI - Temporary stages and motivational variables: Two complementary perspectives in the help-seeking process for mental disorders. AB - INTRODUCTION: Help-seeking for mental disorders is a complex process, which includes different temporary stages, and in which the motivational variables play an especially relevant role. However, there is a lack of instruments to evaluate in depth both the temporary and motivational variables involved in the help seeking process. This study aims to analyse in detail these two sets of variables, using a specific instrument designed for the purpose, to gain a better understanding of the process of treatment seeking. MATERIAL AND METHODS: A total of 152 patients seeking treatment in mental health outpatient clinics of the NHS were individually interviewed: 71 had Obsessive-Compulsive Disorder, 21 had Agoraphobia, 18 had Major Depressive Disorder), 20 had Anorexia Nervosa, and 22 had Cocaine Dependence. The patients completed a structured interview assessing the help-seeking process. Disorder severity and quality of life was also assessed. RESULTS: The patients with agoraphobia and with major depression took significantly less time in recognising their mental health symptoms. Similarly, patients with major depression were faster in seeking professional help. Motivational variables were grouped in 3 sets: motivators for seeking treatment, related to the negative impact of symptoms on mood and to loss of control over symptoms; motivators for delaying treatment, related to minimisation of the disorder; and stigma-associated variables. CONCLUSIONS: The results support the importance of considering the different motivational variables involved in the several stages of the help-seeking process. The interview designed to that end has shown its usefulness in this endeavour. PMID- 29033053 TI - Identification and characterization of a novel recessive KCNQ1 mutation associated with Romano-Ward Long-QT syndrome in two Iranian families. AB - BACKGROUND: One of the foremost causes of sudden cardiac death in the young is an inherent cardiac arrhythmia known as Long-QT syndrome (LQTS). Whereas heterozygous mutations typically lead to the Romano-Ward type of LQTS, We have provided a further evidence for the recessive transmission of a novel KCNQ1 gene mutation in two consanguineous families for the first time in Iran. METHODS: Next generation sequencing, DNA Sanger sequencing and haplotype analysis were performed for genotype determination. Twelve different in silico tools were used for predicting the variant pathogenecity along with the family and population study. RESULTS: A novel recessive KCNQ1 variant (p.D564G) was revealed in none of the unrelated healthy individuals but four patients in two apparently unrelated families. The variant was classified as a likely pathogenic mutation by combining the resulted criteria for the changed amino acid. CONCLUSIONS: Identification of the novel mutation not only supports the genetic testing as a definitive diagnostic tool for detection of at risk family members, but also emphasizes its screening in Iranian LQTS patients as this mutation is very likely a founder mutation in Iran. PMID- 29033055 TI - Ambient endotoxin in PM10 and association with inflammatory activity, air pollutants, and meteorology, in Chitwan, Nepal. AB - BACKGROUND: Endotoxin associated with ambient PM (particulate matter) has been linked to adverse respiratory symptoms, but there have been few studies of ambient endotoxin and its association with co-pollutants and inflammation. OBJECTIVES: Our aim was to measure endotoxin associated with ambient PM10 (particulate matter with aerodynamic diameter<10MUm) in summer 2016 at four locations in Chitwan, Nepal, and investigate its association with meteorology, co pollutants, and inflammatory activity. METHODS: PM10 concentrations were recorded and filter paper samples were collected using E-samplers; PM1, PM2.5, black carbon (BC), methane (CH4), and carbon monoxide (CO) were also measured. The Limulus amebocyte lysate (LAL) assay was used for endotoxin quantification and the nuclear factor kappa B (NFkappaB) activation assay to assess inflammatory activity. RESULTS: The mean concentration of PM10 at the different locations ranged from 136 to 189MUg/m3, and of endotoxin from 0.29 to 0.53EU/m3. Pollutant presence was positively correlated with endotoxin. Apart from relative humidity, meteorological variations had no significant impact on endotoxin concentration. NF-kappaB activity was negatively correlated with endotoxin concentration. CONCLUSIONS: To the best of our knowledge, this study provides the first measurements of ambient endotoxin associated with PM10 in Nepal. Endotoxin and co pollutants were positively associated indicating a similar source. Endotoxin was negatively correlated with inflammatory activity as a result of a time-limited forest fire event during the sampling period. Studies of co-pollutants suggested that the higher levels of endotoxin related to biomass burning were accompanied by increased levels of anti-inflammatory agents, which suppressed the endotoxin inflammatory effect. PMID- 29033056 TI - Nonfasting TG/HDL-C ratio seems a good predictor of MACE in CAD patients with statin therapy. Could it be a treatment target? PMID- 29033057 TI - Clinical inertia versus overtreatment in glycaemic management. PMID- 29033058 TI - 3D interdigitated electrode array in the microchannel free of reference and counter electrodes. AB - We demonstrate the three-dimensional (3D) interdigitated array (IDA) chip that operates without reference and counter electrodes, which are necessary components to apply enough potential to trigger the intended redox process, but used unwieldy for chip-based electrochemical detection. Using the electrode configuration, we propose a unique electrochemical system that is capable of controlling applied potential to a pair of working electrodes despite absence of reference and counter electrodes by fixing the electron transfer mediator on the electrodes in a microchannel. The electrochemical potential of the 2-electrode (2E) system is defined by the potential of the electron transfer mediator, poly(methylene green) (PMG), immobilized with poly(dopamine) (PDA) on the ITO surface by electropolymerization. The 3D IDA chip in the 2E system successfully acts as an electrochemical immunosensing platform. Creatine Kinase-MB in human serum was measured down to ~ pg / mL level. Therefore, the 3D IDA in the 2E system constitutes a simple and scalable platform that needs only nL level of sample volume for sensitive electrochemical detection in miniaturized multiplex immunoassay field. PMID- 29033059 TI - Structural integration and performance of inter-sectoral public health-related policy networks: An analysis across policy phases. AB - BACKGROUND: Inter-sectoral policy networks may be effective in addressing environmental determinants of health with interventions. However, contradictory results are reported on relations between structural network characteristics (i.e., composition and integration) and network performance, such as addressing environmental determinants of health. This study examines these relations in different phases of the policy process. METHODS: A multiple-case study was performed on four public health-related policy networks. Using a snowball method among network actors, overall and sub-networks per policy phase were identified and the policy sector of each actor was assigned. To operationalise the outcome variable, interventions were classified by the proportion of environmental determinants they addressed. RESULTS: In the overall networks, no relation was found between structural network characteristics and network performance. In most effective cases, the policy development sub-networks were characterised by integration with less interrelations between actors (low cohesion), more equally distributed distances between the actors (low closeness centralisation), and horizontal integration in inter-sectoral cliques. The most effective case had non public health central actors with less connections in all sub-networks. CONCLUSION: The results suggest that, to address environmental determinants of health, sub-networks should be inter-sectorally composed in the policy development rather than in the intervention development and implementation phases, and that policy development actors should have the opportunity to connect with other actors, without strong direction from a central actor. PMID- 29033060 TI - A review of international coverage and pricing strategies for personalized medicine and orphan drugs. AB - BACKGROUND: Personalized medicine and orphan drugs share many characteristics both target small patient populations, have uncertainties regarding efficacy and safety at payer submission, and frequently have high prices. Given personalized medicine's rising importance, this review summarizes international coverage and pricing strategies for personalized medicine and orphan drugs as well as their impact on therapy development incentives, payer budgets, and therapy access and utilization. METHODS: PubMed, Health Policy Reference Center, EconLit, Google Scholar, and references were searched through February 2017 for articles presenting primary data. RESULTS: Sixty-nine articles summarizing 42 countries' strategies were included. Therapy evaluation criteria varied between countries, as did patient cost-share. Payers primarily valued clinical effectiveness; cost was only considered by some. These differences result in inequities in orphan drug access, particularly in smaller and lower-income countries. The uncertain reimbursement process hinders diagnostic testing. Payer surveys identified lack of comparative effectiveness evidence as a chief complaint, while manufacturers sought more clarity on payer evidence requirements. Despite lack of strong evidence, orphan drugs largely receive positive coverage decisions, while personalized medicine diagnostics do not. CONCLUSIONS: As more personalized medicine and orphan drugs enter the market, registries can provide better quality evidence on their efficacy and safety. Payers need systematic assessment strategies that are communicated with more transparency. Further studies are necessary to compare the implications of different payer approaches. PMID- 29033061 TI - Predicting Vision-Related Disability in Glaucoma. AB - PURPOSE: To present a new methodology for investigating predictive factors associated with development of vision-related disability in glaucoma. DESIGN: Prospective, observational cohort study. PARTICIPANTS: Two hundred thirty-six patients with glaucoma followed up for an average of 4.3+/-1.5 years. METHODS: Vision-related disability was assessed by the 25-item National Eye Institute Visual Function Questionnaire (NEI VFQ-25) at baseline and at the end of follow up. A latent transition analysis model was used to categorize NEI VFQ-25 results and to estimate the probability of developing vision-related disability during follow-up. Patients were tested with standard automated perimetry (SAP) at 6 month intervals, and evaluation of rates of visual field change was performed using mean sensitivity (MS) of the integrated binocular visual field. Baseline disease severity, rate of visual field loss, and duration of follow-up were investigated as predictive factors for development of disability during follow up. MAIN OUTCOME MEASURES: The relationship between baseline and rates of visual field deterioration and the probability of vision-related disability developing during follow-up. RESULTS: At baseline, 67 of 236 (28%) glaucoma patients were classified as disabled based on NEI VFQ-25 results, whereas 169 (72%) were classified as nondisabled. Patients classified as nondisabled at baseline had 14.2% probability of disability developing during follow-up. Rates of visual field loss as estimated by integrated binocular MS were almost 4 times faster for those in whom disability developed versus those in whom it did not (-0.78+/-1.00 dB/year vs. -0.20+/-0.47 dB/year, respectively; P < 0.001). In the multivariate model, each 1-dB lower baseline binocular MS was associated with 34% higher odds of disability developing over time (odds ratio [OR], 1.34; 95% confidence interval [CI], 1.06-1.70; P = 0.013). In addition, each 0.5-dB/year faster rate of loss of binocular MS during follow-up was associated with a more than 3.5 times increase in the risk of disability developing (OR, 3.58; 95% CI, 1.56-8.23; P = 0.003). CONCLUSIONS: A new methodology for classification and analysis of change in patient-reported quality-of-life outcomes allowed construction of models for predicting vision-related disability in glaucoma. PMID- 29033062 TI - Ethical issues in global health engagement. AB - With an increasing number of clinicians participating in global health work, such engagement is now more than ever in need of critical ethical scrutiny. Exemplary initiatives in research, academics and publication, and other special considerations, provide potential approaches for overcoming ethical challenges in global health work. These methods demonstrate that successful global health work includes a commitment to foundational ethical principles such as trust, honesty, open communication and transparency, sustainability, capacity building, and appreciation for multiple perspectives - principles that surpass the traditional considerations of clinical practice. From this perspective, successful interventions to reduce neonatal and perinatal mortality must be strategically focused on building in-country capacity and sustainability. PMID- 29033063 TI - Factor analysis of symptom profile in early onset and late onset OCD. AB - This study aimed to assess the factor structure of early and late onset OCD. Additionally, cluster analysis was conducted in the same sample to assess the applicability of the factors. 345 participants were assessed with Yale Brown Obsessive Compulsive Scale symptom checklist. Patients were classified as early onset (onset of symptoms at age <= 18 years) and late onset (onset at age > 18 years) OCD depending upon the age of onset of the symptoms. Factor analysis and cluster analysis of early-onset and late-onset OCD was conducted. The study sample comprised of 91 early onset and 245 late onset OCD subjects. Males were more common in the early onset group. Differences in the frequency of phenomenology related to contamination related, checking, repeating, counting and ordering/arranging compulsions were present across the early and late onset groups. Factor analysis of YBOCS revealed a 3 factor solution for both the groups, which largely concurred with each other. These factors were named as hoarding and symmetry (factor-1), contamination (factor-2) and aggressive, sexual and religious factor (factor-3). To conclude this study shows that factor structure of symptoms of OCD seems to be similar between early-onset and late onset OCD. PMID- 29033064 TI - Mathematical models and vaccination strategies. AB - Infection transmission is a complex and dynamic process, and is therefore difficult to assess. Consequently, mathematical models are a useful tool to understand any leverage on this transmission, such as vaccination. Models can provide guidance to implement an optimal vaccination campaign whether it concerns the fraction of the population or the age-group to be vaccinated. Mathematical models can also provide insights on counter-intuitive collateral effects of vaccination campaign, given the possibility that the overall benefits for the general population may hide deleterious effects on some sub-groups. As a large proportion of the population is now vaccinated, complex modelling taking into account individual and population heterogeneity and behaviour is necessary although challenging. But the most crucial aspect in the future of mathematical modelling still consists in obtaining precise and exhaustive data. PMID- 29033065 TI - Hospital-based collaboration for epidemiological investigation of vaccine safety: A potential solution for low and middle-income countries? PMID- 29033066 TI - Hydroadenocarcinoma of clear cells located in the breast. PMID- 29033067 TI - Multinodular esophageal leiomyomatosis: An uncommon cause of mediastinal mass. PMID- 29033068 TI - Treatment of the axila in breast cancer surgery: Systematic review of its impact on survival. AB - Sentinel lymph node biopsy and ACOSOG-Z0011 criteria have modified axillary treatment in breast cancer surgery. We performed a systematic review of studies assessing the impact of axillary treatment on survival. The search showed 6891 potentially eligible items. Of them, 23 clinical trials and 12 meta-analyses published between 1980 and 2017 met the study criteria. The review revealed that axillary lymph node dissection (ALND) can be omitted in patients pN0 and pN1mic, without compromising survival. In patients pN1 it is proposed not to treat the axilla or replace ALND for axillary radiotherapy. The main limitations of this study are the inclusion of old tests that do not use therapeutic targets and lack of risk categorization of relapse. In conclusion, axillary treatment can be avoided in patients without metastatic involvement or micrometastases in the sentinel lymph node. However, there is no evidence to make a recommendation of axillary treatment in N1 patients, so individualized analysis of patient risk factors is needed. PMID- 29033069 TI - Surgery for hepatic hidatidosis. Risk factors and variables associated with postoperative morbidity. Overview of the existing evidence. AB - There are few publications related to postoperative morbidity in hepatic hydatidosis and these have mixed results. The aim of this study was to determine risk and protective factors of postoperative morbidity in patients operated on for hepatic hydatidosis. A comprehensive review was made of the evidence, based on systematic reviews, clinical analyses and observational studies, obtained from the Trip Database, BVS, SciELO, Cochrane Central Register of Controlled Trials, WoS, MEDLINE, EMBASE, SCOPUS, EBSCOhost, IBECS, ePORTUGUESe, LILACS and WHOLIS. 1,087 related articles were identified; 69 fulfilled the selection criteria (2 systematic reviews, 3 clinical trials and 64 observational studies). Age, history of previous surgery for hepatic hydatidosis, location in the hepatic center, existence of biliary communications and evolutionary complications of the cyst were identified as risk factors, and radical surgical techniques as protective factors. Risk and protective factors were identified; however, the studies are few and the quality moderate to low. PMID- 29033070 TI - Pleuroperitoneal communication in a patient with peritoneal dialysis: An interesting case for the surgeon. PMID- 29033072 TI - Gastroduodenal invagination secondary to gastric submucosal lipoma treated by laparoscopic transgastric excision. PMID- 29033071 TI - Secondary node analysis as an indicator for axillary lymphadenectomy in breast cancer patients. AB - INTRODUCTION: Currently, there is no agreement regarding if it would be necessary to perform an axillary lymph node dissection (ALND) in patients who have macrometastases in the sentinel lymph node (SLN). We studied the utility of the secondary node analysis (SN), defined as the following node after the SLN in an anatomical and lymphatic pathway, as a sign of malignant axillary involvement. METHODS: An observational, retrospective and multicentre study was designed to assess the utility of the SN as a sign of axillary involvement. Among 2273 patients with breast cancer, a valid sample of 283 was obtained representing those who had the SN studied. Main endpoints of our study were: the SLN, the SN and the ALND histological pattern. Sensitivity, specificity and precision of the test were also calculated. RESULTS: SN test, in cases with positive SLN, has a sensitivity of 61.1%, a specificity of 78.7%, a positive predictive value of 45.8% and a negative predictive value of 87.3% with a precision of 74.7%. CONCLUSION: The study of the SN together with the technique of the SLN allows a more precise staging of the axillary involvement, in patients with breast cancer, than just the SLN technique. PMID- 29033073 TI - Surgical Treatment of Supraclavicular and Internal Mammary Recurrence of Breast Cancer. PMID- 29033074 TI - Potentially active spoilage bacteria community during the storage of vacuum packaged beefsteaks treated with aqueous ozone and electrolyzed water. AB - The microbial contamination that occurs during the slaughtering process and during handling of the meat results in a shortening of the shelf-life of meat. In this study, which has had the aim of extending the shelf life of beefsteaks, pilot-scale treatments were carried out with aqueous ozone (AO) and electrolyzed water (EW) before vacuum packaging (VP). The development of the potentially active microbiota and the associated volatilome were followed over 15days of storage under refrigerated conditions (4 degrees C), in order to define the potential long-term effects of the treatments and storage condition on microbiota. The targeted RNA-based amplicon sequencing identified Pseudomonas fragi as the most frequent species before and after the treatments with AO and EW, as well as in the untreated control. The tested treatments did not reduce the overall presence of this species, but they affected the intra-species distribution of its oligotypes, albeit slightly. With the progression of the refrigerated storage and the reduction of the oxygen availability, Lactobacillus sakei, Leuconostoc gasicomitatum and Lactococcus piscium became the dominant, potentially active, beef microbiota, as confirmed by microbiological data. When the OTU abundances and volatilome were coupled, a significant association was observed between the organic acids, esters and aldehydes and these lactic acid bacteria species. In spite of the limited effectiveness of the treatments over the short and long term, this study has provided a detailed view of beef spoilage using RNA as the sequencing target, strengthening and confirming the current knowledge based on DNA-amplicon sequencing. PMID- 29033075 TI - Multi-drug resistant organism infections in a medical ICU: Association to clinical features and impact upon outcome. AB - OBJECTIVE: To define clinical features associated with Intensive Care Unit (ICU) infections caused by multi-drug resistant organisms (MDRO) and their impact on patient outcome. DESIGN: A single-center, retrospective case-control study was carried out between January 2010 and May 2010. SETTING: A medical ICU (MICU) in the United States. PATIENTS: The study included a total of 127 MDRO-positive patients and 186 MDRO-negative patients. INTERVENTIONS: No interventions were carried out. RESULTS: Out of a total of 313 patients, MDROs were present in 127 (41.7%). Based on the multivariate analysis, only infection as a cause of admission [OR 3.3 (1.9-5.8)]), total days of ventilation [OR 1.07 (1.01-1.12)], total days in hospital [OR 1.04 (1.01-1.07)], immunosuppression [OR 2.04 (1.2 3.5)], a history of hyperlipidemia [OR 2.2 (1.2-3.8)], surgical history [OR 1.82 (1.05-3.14)] and age [OR 1.02 (1.00-1.04)] were identified as clinical factors independently associated to MDROs, while the Caucasian race was negatively associated to MDROs. The distribution of days on ventilation, days in hospital and days of antibiotic treatment prior to infection differed between the MDRO positive and MDRO-negative groups. The MDRO-positive patients showed a greater median number of days in hospital and days of antibiotic treatment before infection, with a greater median number of days in hospital, days of antibiotic treatment and days of ventilation after infection, compared to the MDRO-negative patients. The mortality rate was not significantly different between the two groups. Appropriate empirical antibiotic therapy was prescribed in 82% of the MDRO-positive cases - such treatment being started within 24h after onset of the infection in 68.5% of the cases. CONCLUSION: Defining clinical factors associated with MDRO infections and administering timely and appropriate empirical antibiotic therapy may help reduce the mortality associated with these infections. In our hospital we did not withhold broad spectrum drugs as empirical therapy in patients with clinical features associated to MDRO infection. Our rate of appropriate empirical therapy was therefore high, which could explain the absence of excessive mortality in patients infected with MDROs. PMID- 29033076 TI - Letter to the editor concerning "The learning curve with a new cephalomedullary femoral nail". PMID- 29033077 TI - Regarding: Management of esophageal injuries secondary to trauma. Injury, 2017, 48: 1735-1742. PMID- 29033078 TI - Trochanteric entry femoral nails yield better femoral version and lower revision rates-A large cohort multivariate regression analysis. PMID- 29033079 TI - Polytrauma patients in the Netherlands and the USA: A bi-institutional comparison of processes and outcomes of care. AB - BACKGROUND: Modern trauma systems differ worldwide, possibly leading to disparities in outcomes. We aim to compare characteristics and outcomes of blunt polytrauma patients admitted to two Level 1 Trauma Centers in the US (USTC) and the Netherlands (NTC). METHODS: For this retrospective study the records of 1367 adult blunt trauma patients with an Injury Severity Score (ISS) >= 16 admitted between July 1, 2011 and December 31, 2013 (640 from NTC, 727 from USTC) were analysed. RESULTS: The USTC group had a higher Charlson Comorbidity Index (mean [standard deviation] 1.15 [2.2] vs. 1.73 [2.8], p<0.0001) and Injury Severity Score (median [interquartile range, IQR] 25 [17-29] vs. 21 [17-26], p<0.0001). The in-hospital mortality was similar in both centers (11% in USTC vs. 10% NTC), also after correction for baseline differences in patient population in a multivariable analysis (adjusted odds ratio 0.95, 95% confidence interval 0.61 1.48, p=0.83). USTC patients had a longer Intensive Care Unit stay (median [IQR] 4 [2-11] vs. 2 [2-7] days, p=0.006) but had a shorter hospital stay (median [IQR] 6 [3-13] vs. 8 [4-16] days, p<0.0001). USTC patients were discharged more often to a rehabilitation center (47% vs 10%) and less often to home (46% vs. 66%, p<0.0001), and had a higher readmission rate (8% vs. 4%, p=0.01). CONCLUSION: Although several outcome parameters differ in two urban area trauma centers in the USA and the Netherlands, the quality of care for trauma patients, measured as survival, is equal. Other outcomes varied between both trauma centers, suggesting that differences in local policies and processes do influence the care system, but not so much the quality of care as reflected by survival. PMID- 29033080 TI - Reconstitution of Th17, Tc17 and Treg cells after paediatric haematopoietic stem cell transplantation: Impact of interleukin-7. AB - Successful reconstitution of T lymphocytes after allogeneic haematopoietic stem cell transplantation (HSCT) is needed to establish the graft-versus-leukaemia effect and an effective anti-microbial defense, but the ratio between functionally different T-cell subsets needs to be balanced to avoid graft-versus host disease (GVHD). IL-7 is essential for T-cell generation in the thymus and peripheral T-cell homeostasis. High IL-7 levels have been associated with impaired T-cell reconstitution, increased risk of acute GVHD and treatment related mortality, but the underlying cellular mechanisms behind these associations have not been investigated previously. We hypothesized that increased levels of IL-7 post-transplant alters the balance between immune regulatory T cell subsets during the post-transplant lymphocyte recovery towards a more pro-inflammatory profile. We quantified Th17 cells, Tc17 cells and Tregs in 29 children following HSCT. Th17 cell and Treg counts rose significantly from day +90 to +180 post-HSCT, and prior acute GVHD was associated with significant changes in the concentration of Tregs (9.4*106/L vs. 1.3*106/L, P=0.0052) and the Th17/Treg ratio (1.5 vs. 4.2, P=0.025). The plasma level of IL-7 at day +90 correlated inversely with Th17 cell counts (rs=-0.65, P=0.0002) and the proportion of Tc17 cells (rs=0.64, P=0.0005) at day +90, but not with Tregs. Furthermore, high IL-7 levels at day +7 were predictive of a less naive T-cell phenotype at day +90. These findings add further evidence that IL-7 is a key regulatory factor that may tune the balance between functionally different T-cell subsets following HSCT. PMID- 29033081 TI - A Cone-beam Computed Tomographic Study of Apical Surgery-related Morphological Characteristics of the Distolingual Root in 3-rooted Mandibular First Molars in a Chinese Population. AB - INTRODUCTION: Apical surgery on the separate distolingual (DL) root of a 3-rooted mandibular first molar is thought to be difficult because DL roots are always severely curved, small, and shorter than distobuccal (DB) roots, and they are located far from the buccal cortical bone. The purpose of this study was to use cone-beam computed tomographic images to investigate the apical surgery-related morphological characteristics of DL roots in a Chinese population. METHODS: The screening process identified 83 subjects with 128 mandibular first molars with separate DL roots. The degree of root canal curvature was measured in the mesiodistal (MD) and buccolingual (BL) planes using the Schneider method. Distances were measured from the DL root apex to the buccal cortical bone, to the buccal cortical bone opposite the DB root apex, and to the buccal cortical bone opposite the mesiobuccal (MB) root apex. The lengths of the remaining DB, MB, and DL roots were measured after resection of 3 mm of the DL apical root. Angulations of the DL root canal were determined before and after DL apical root resection. RESULTS: The teeth were classified into 3 types: type I, straight in the MD and BL planes; type II, straight in the MD plane and curved in the BL plane; and type III, curved in the MD and BL planes. Only 5 molars (3.9%) were classified as type I, whereas 52 (40.6%) molars were type II and 71 (55.5%) molars were type III. The type I DL root has a significantly shorter length and longer distance from the DL root apex to the buccal cortical bone than type II and III roots (P < .05). The distance from the DL root apex to the buccal cortical bone opposite the MB root apex is significantly longer than the distance to the buccal cortical bone opposite the DB root apex in types I and II (P < .05), whereas the distance is nearly equal for type III. The angulations for root-end preparation of types II and III DL roots vary from 57.5 degrees to 129.1 degrees and from 55.8 degrees to 128.1 degrees , respectively. CONCLUSIONS: A new classification was proposed for DL roots in 3-rooted mandibular first molars based on the root canal curvature. Type I is unsuitable for apical surgery. Access to the type II DL root apex should be through the DB root apex, whereas access to the type III DL root apex through the MB root apex is more feasible. Apical surgery on types II and III DL roots may be accomplished when the depth of the root-end preparation is reasonably reduced, and fine and personalized angulated ultrasonic retro tips are used. PMID- 29033082 TI - Root Canal Morphology Evaluation of Central and Lateral Mandibular Incisors Using Cone-beam Computed Tomography in an Israeli Population. AB - INTRODUCTION: Central and lateral mandibular incisors usually have 1 root canal. The purpose of this study was to investigate the prevalence of additional root canals in central and lateral mandibular incisors and to investigate the prevalence of oval and long oval canals in the cervical, middle, and apical thirds of cases with 1 root canal. METHODS: A total of 1016 Israeli patients' cone-beam computed tomography scans were screened and evaluated. A total of 1472 central mandibular incisors and 1508 lateral mandibular incisors were examined. The root canal morphology and cross-sectional shape were recorded and analyzed. RESULTS: The overall prevalence of more than 1 root canal in mandibular central and mandibular lateral respectively was 40.5% and 37.9%. The bilateral incidence of more than 1 root canal in mandibular central and mandibular lateral respectively was 69.8% and 68.7%. The root canal separation in type II to type V central and lateral mandibular incisors was found in the middle third of the root in 81.5% and 79.0%, respectively. The septum was smaller than 1 mm in 37% of central mandibular incisors and one-third of lateral mandibular incisors. In central and lateral incisors with 1 root canal, long oval canals were found in the middle third of the root of central and lateral mandibular incisors in 36.8% and 48.9%, respectively. CONCLUSION: The occurrence of more than 1 root canal in central and lateral mandibular incisors is approximately 40% (type III was the predominant canal type). In central and lateral incisors with 1 root canal, long oval canals are common. PMID- 29033083 TI - Foraminal Deformation after Foraminal Enlargement with Rotary and Reciprocating Kinematics: A Scanning Electronic Microscopy Study. AB - INTRODUCTION: The aim of this study was to evaluate, under scanning electronic microscopy, the morphological aspect of apical foramen after root canal instrumentation with rotary and reciprocating kinematics at 2 different working length determinations. METHODOLOGY: Sixty mesiobuccal roots of mandibular and maxillary molars presenting with curvature ranging from 30 to 65 degrees were used in this study. The roots were initially scanned with a scanning electronic microscope under *50 magnification. Roots were divided into 2 different groups (n = 30): group 1 instrumented with rotary kinematics, and group 2 instrumented with reciprocating kinematics. Both groups were instrumented at 2 different working lengths: at the apex and 1 mm beyond the apex. The roots were scanned after the instrumentation at the apex and again after further instrumentation 1 mm beyond the apex. The photomicrographs obtained were assigned to 3 independent evaluators for foraminal deformation assessment through comparison with baseline images. Evaluators were masked with regard to the kinematics and working length used. The Pearson correlation test and Kruskal-Wallis test (method of Dunn) were used for statistical analysis (P < .05). RESULTS: The Pearson Correlation test showed good agreement among evaluators. Foraminal deformation was observed in instrumentation at the apex and 1 mm beyond the apex with both kinematics (P < .05). CONCLUSIONS: Within the limitations of this study, it can be concluded that root canal instrumentation at the apex or 1 mm beyond the apex promoted deformation of the major foramen, regardless of the kinematics. PMID- 29033084 TI - Morphological Characteristics and Classification of Mandibular First Molars Having 2 Distal Roots or Canals: 3-Dimensional Biometric Analysis Using Cone-beam Computed Tomography in a Korean Population. AB - INTRODUCTION: The aim of this study was to determine the morphologic characteristics of mandibular first molars having 2 canals in distal roots. Interorifice distance, buccal bone thickness, and root curvature were evaluated using cone-beam computed tomography images in a Korean population. METHODS: In total, 1958 mandibular first molars were evaluated in axial, coronal, sagittal, and paraxial planes. Distal roots having 2 canals were classified according to their root and canal shapes (2 roots, 2 canals [2R2C]; 1 root, 2 canals with 2 apical foramina [1R2C(2-2)]; and 1 root, 2 canals with 1 apical foramen [1R2C(2 1)]). The distances between orifices and the distance from the apex to the buccal bone plate were measured for each root canal shape (2R2C, 1R2C[2-2], and 1R2C[2 1]). The curvature of distolingual (DL) roots was classified according to severity using 3-dimensional reconstructed images, and the direction of curvature was determined. The relationships of these characteristics to sex and side were evaluated. RESULTS: The prevalences of 2R2C, 1R2C(2-2), and 1R2C(2-1) were 25.89%, 10.32%, and 14.15%, respectively. The distances between distobuccal (DB) and DL orifices were 3.77 +/- 0.74 mm for 2R2C, 3.02 +/- 0.65 mm for 1R2C(2-2), and 2.44 +/- 0.64 mm for 1R2C(2-1). The distances from the buccal plate to the DB canal were 3.84 +/- 1.35 mm for 2R2C, 5.33 +/- 1.41 mm for 1R2C(2-2), and 5.96 +/ 1.63 mm for 1R2C(2-1). The distance from the buccal plate to the DL canal was 9.85 +/- 1.46 mm for 2R2C, and 8.28 +/- 1.50 mm for 1R2C(2-2). All distances differed significantly according to root canal configurations, and all were greater in men than women (P < .05), except for the DB-DL orifice distance in 1R2C(2-2) and the DB to buccal cortical plate distance in all root configurations (P > .05). No significant difference between the left and right sides was found (P > .05). The prevalence of most severely curved DL roots (type III) was 62.92%, and the direction was commonly toward the buccal side (69.03%). CONCLUSIONS: The prevalence of mandibular first molars having 2 canals in distal roots was more than 50% in a Korean population. Interorifice distances between DB and DL canals and distances from the apex to the buccal cortical plate differed according to root and canal numbers and shapes. PMID- 29033085 TI - Correlation between Endodontic Infection and Periodontal Disease and Their Association with Chronic Sinusitis: A Clinical-tomographic Study. AB - INTRODUCTION: The proximity of the roots of maxillary posterior teeth to the maxillary sinus floor can be associated with the development of chronic maxillary sinusitis (CMS). Therefore, this study evaluated the correlation between the presence of endodontic infection and periodontal disease in maxillary posterior teeth and the presence of CMS. METHODS: A total of 83 patients (159 maxillary sinuses) were selected and underwent clinical dental examination to assess tooth mobility and pulp condition. In addition, cone-beam computed tomography was performed to evaluate the presence of periapical lesion and periodontal bone loss, and measure the distance from the root apex to the cortical of the maxillary sinus. The maxillary sinuses were divided into 2 groups: CMS and no maxillary sinusitis. Data were analyzed using chi2 test and binary logistic regression analysis (P < .05). RESULTS: Periodontal disease was positively associated with CMS, leading to a 3.45-fold higher association between these disorders (P < .05). CMS was significantly more common in patients with periodontal disease or endodontic infection in close proximity with the maxillary sinus. Periodontal disease or endodontic infection that was more distant from the maxillary sinus was more common in patients with no maxillary sinusitis (P < .05). To the extent that the tooth is more distant from the maxillary sinus floor, the chance of presenting CMS is reduced up to 2.5-fold (P < .05). CONCLUSION: Periodontal disease and proximity to the maxillary sinus are more common in cases of CMS, requiring a dental assessment and cone-beam computed tomography evaluation in patients with CMS with ineffective treatment. PMID- 29033086 TI - Intentional Replantation Techniques: A Critical Review. AB - INTRODUCTION: Techniques and armamentarium for intentional replantation have varied throughout the years with no universally accepted clinical treatment guidelines. A wide range of success rates has been reported, and accordingly, this treatment method has often been regarded as a treatment of last resort. However, recent studies have shown more consistent success rates as high as 88% to 95%. In light of these new studies, intentional replantation may now be considered a more commonly accepted treatment modality. The purpose of this review was to critically examine reported techniques for intentional replantation. METHODS: A search of the literature on intentional replantation techniques was performed using electronic databases including PubMed, Medline, and Scopus. A total of 3183 articles were generated and screened for relevance based on defined inclusion and exclusion criteria. Subsequently, 27 studies were included for critical review of technique. RESULTS: There has been an evolution in technique for intentional replantation over the decades. CONCLUSIONS: Numerous aspects of the procedure exhibit variations, whereas other aspects exhibit considerable consistency. Few studies reported techniques consistent with modern endodontic surgical principles. PMID- 29033087 TI - Micro-computed Tomography versus the Cross-sectioning Method to Evaluate Dentin Defects Induced by Different Mechanized Instrumentation Techniques. AB - INTRODUCTION: The objective of this study was to compare the methods of micro computed tomography (micro-CT) and cross-sectioning followed by stereomicroscopy in assessing dentinal defects after instrumentation with different mechanized systems. METHODS: Forty mesial roots of mandibular molars were scanned and divided into 4 groups (n = 10): Group R, Reciproc; Group PTN, ProTaper Next; Group WOG, WaveOne Gold; Group PDL, ProDesign Logic. After instrumentation, the roots were once again submitted to a micro-CT scan, and then sectioned at 3, 6, and 9 mm from the apex, and assessed for the presence of complete and incomplete dentinal defects under a stereomicroscope. The nonparametric Kruskal-Wallis, Friedman, and Wilcoxon tests were used in the statistical analysis. The study used a significance level of 5%. RESULTS: The total number of defects observed by cross-sectioning followed by stereomicroscopy was significantly higher than that observed by micro-CT, in all of the experimental groups (P <= .05). All of the defects identified in the postoperative period were already present in the corresponding preoperative period. There was no significant difference among the instrumentation systems as to the median numbers of defects, for either cross sectioning followed by stereomicroscopy or micro-CT, at all the root levels (P > .05). In the micro-CT analysis, no significant difference was found between the median numbers of pre- and postinstrumentation defects, regardless of the instrumentation system (P > .05). CONCLUSION: None of the evaluated instrumentation systems led to the formation of new dentin defects. All of the defects identified in the stereomicroscopic analysis were already present before instrumentation, or were absent at both time points in the micro-CT analysis, indicating that the formation of new defects resulted from the sectioning procedure performed before stereomicroscopy and not from instrumentation. PMID- 29033088 TI - Evaluation of Effect of Foraminal Enlargement of Necrotic Teeth on Postoperative Symptoms: A Systematic Review and Meta-analysis. AB - INTRODUCTION: The intentional enlargement of the apical foramen is designed to reduce the microbial load in the apical foramen, or even beyond, to levels more favorable for repair. This study provides a systematic review and meta-analysis to address the PICOS question: in adult patients who undergo endodontic treatment, does foraminal enlargement (FE) cause different postoperative symptoms in comparison with conventional endodontic treatment? METHODS: The PROSPERO registration number is CRD42017059921 and was conducted following the PRISMA statements. A broad search was conducted in the electronic databases PubMed, Web of Science, Scopus, Cochrane Library, and grey literature for articles published through May 2017. The MeSH terms "Pain," "Hyperemia," "Edema," "Hyperesthesia," "Fistula," "Root canal preparation," "Tooth apex," "Periapical periodontitis," "Dental pulp necrosis," and "Clinical study" were used. The reviewers evaluated the studies for eligibility criteria and performed data abstraction and risk of bias evaluations. A random-effects model was used for the meta-analysis. RESULTS: Five studies qualified for systematic review, and 3 studies were considered for meta-analysis. The results of the meta-analysis showed that postoperative pain is higher in the endodontic treatment with FE, with a statistically significant difference in the first, second, fourth, sixth, and seventh days. Limited data indicated that no significant difference was found in analgesic consumption, flare-up, and swelling between the groups. CONCLUSIONS: Postoperative pain was higher in the FE group compared with conventional endodontic therapy in the first days after treatment in teeth with necrosis and apical periodontitis. PMID- 29033089 TI - The Effect of Heating Time and Temperature on Epoxy Resin and Calcium Silicate based Endodontic Sealers. AB - INTRODUCTION: With the growing use of warm obturation techniques during endodontic treatment, more interest is directed toward sealers' compatibility with heat. This study aimed to evaluate the effect of heat application duration and temperature on epoxy resin- and calcium silicate-based sealers using chemical and thermogravimetric analyses. METHODS: Freshly mixed samples (n = 5/group) of each sealer were heated at 200 degrees C or 250 degrees C for 30 or 60 seconds. Additional 2 sets of samples were examined directly after mixing or after setting without heat exposure. Raman spectroscopy was used to identify changes in the chemical structure, and a 2-way analysis of variance was performed to compare values of measurable peaks that exhibited changes. Additionally, Thermogravimetric Analysis (TGA) was used to evaluate the effect of heat on mass change where sealers were heated to 250 degrees C at a rate of 20 degrees C/min (11-minute duration) or maintained at 37 degrees C for 8 hours. RESULTS: No differences were detected among all the spectra of calcium silicate samples of different groups, while TGA revealed 15% and 18% weight loss upon heating at 250 degrees C and 37 degrees C, respectively. For the resin sealer, significant differences were detected when samples were heated for 60 seconds, involving bonds of benzene rings and aromatic amines in the uncured resin. TGA revealed minimal changes in the sealer mass (1.2% and 1.8%) on heating at 250 degrees C and 37 degrees C, respectively. CONCLUSIONS: Heat application duration and temperature can affect the chemical structure of epoxy resin sealers. The consideration of endodontic sealer compatibility as well as the duration of heat application is essential when warm vertical obturation is used. PMID- 29033090 TI - The Antimicrobial Peptide LL-37 as a Possible Adjunct for the Proliferation and Differentiation of Dental Pulp Stem Cells. AB - INTRODUCTION: This study evaluated the biocompatibility of 5 and 10 MUg/mL LL-37 in vitro and its effect on the differentiation of human dental pulp stem cells (DPSCs) into odontoblast-like cells. METHODS: Cell viability, genotoxicity, nitric oxide production, cell cycle, dentine sialophosphoprotein (DSPP) production, and DSPP gene expression. RESULTS: Concentrations of 5 and 10 MUg/mL of LL-37 were not cytotoxic and generally increased cell viability, especially on the third day (P < .05). The tested concentrations did not induce genotoxicity (P < .05). LL-37 did not significantly alter nitrite production at either concentration. Cell cycle analysis revealed that 10 MUg/mL of LL-37 arrested cells in G0/G1 (P < .05). The control group exhibited higher numbers of cells in other phases of the cell cycle (P < .05). The expression of the DSPP protein and gene was also higher in the 10 MUg/mL of LL-37 group (P < .05). CONCLUSIONS: These results demonstrated that LL-37 was biocompatible at these concentrations and increased the number of viable cells, especially during the initial period. The 10 MUg/mL concentration arrested the cell cycle and increased expression of the DSPP protein and gene, which indicates that this peptide contributes to odontoblastic differentiation. PMID- 29033091 TI - Influence of Artifact Reduction Tools in Micro-computed Tomography Images for Endodontic Research. AB - INTRODUCTION: Micro-computed tomography (MUCT) is an imaging modality of growing application in endodontic research because of its nondestructive technology that enables visualization at the micrometer level. In the presence of high-density material, images acquired with MUCT may present artifacts. Thus, the aim of this study was to evaluate subjectively and objectively the influence of artifact reduction tools available for MUCT image reconstruction to determine whether their use can influence endodontic research outcomes. METHODS: Ten teeth were scanned in a MUCT device, and these images were reconstructed by applying 13 protocols of artifact reduction tools, combining ring artifact reduction (RAR) and beam-hardening artifact reduction (BAR). Images were assessed subjectively (observer's preference) and objectively (root canal surface area and volume). Observer's preference for RAR and BAR protocols was tested by chi2. Analysis of variance was used to compare volumes and surface area of root canals on different protocols. Intraobserver and interobserver reproducibility was calculated by the weighted kappa test. RESULTS: There was no preference for a particular protocol for BAR (P = .91) or RAR (P = .80). There were no statistically significant differences for volume (P = .999) or surface area (P = .972) of root canals for all protocols. CONCLUSIONS: To evaluate root canal volume and root canal surface area, artifact reduction tools applied to MUCT images can be used according to the observer's visual preference without influence on objective image analysis. PMID- 29033092 TI - Comparison of IL-1beta, TNF-alpha, hBD-2, and hBD-3 Expression in the Dental Pulp of Smokers Versus Nonsmokers. AB - INTRODUCTION: To date, the endodontic literature lacks research on the effect of smoking on cytokine and defensin expression in the dental pulp. Therefore, the aim of this study was to investigate the expression of interleukin (IL)-1beta, tumor necrosis factor (TNF)-alpha, human beta defensin (hBD)-2 and hBD-3 in the dental pulp of smokers and compare them with nonsmokers. We hypothesized that cytokine and defensin expression would be reduced in smokers as compared with nonsmokers. METHODS: Thirty-two smokers and 37 nonsmokers with endodontic pulpal diagnoses of normal, symptomatic irreversible pulpitis and asymptomatic irreversible pulpitis were included in this cross-sectional study. Samples from pulp chambers were collected and stored in phosphate-buffered saline at -80 degrees C. Luminex was used to measure IL-1beta and TNF-alpha levels. The levels of hBD-2 and hBD-3 were measured using enzyme-linked immunosorbent assay. Marker levels were normalized to protein concentrations and data were analyzed using Kruskal-Wallis test, Mann-Whitney U test, and 2-way analysis of variance (alpha = 0.05). RESULTS: Pulpal concentrations of TNF-alpha and hBD-2 were significantly lower among smokers (P < .01), whereas no significant difference was observed for IL-1beta, or hBD-3. Two-way analysis of covariance revealed that smoking status (P < .001), not endodontic diagnosis (pulpal status), significantly affected TNF alpha and hBD-2 levels. CONCLUSIONS: This study reported that smokers are immunologically deficient in TNF-alpha and hBD-2, suggesting that dental pulps of smokers possess limited defense mechanisms, affecting their endodontic prognosis and indicating a cause for their reported inferior outcome. PMID- 29033093 TI - Meeting Our Patients "Where They Are": Video-Group Smoking Cessation for People Living With HIV. PMID- 29033094 TI - Necessity of Axillary Scanning After Negative Finding on Both Mammography and Subsequent Breast Ultrasound. AB - The purpose of our study was to assess the cancer detection rate and positive predictive value (PPV) for incidentally detected abnormal axillary lymph nodes with negative mammography and subsequent breast ultrasound (US). We included 7039 screened patients (mean age, 52 y) from January 2012 to March 2015 with negative mammography and subsequent breast US results. In two patients with positive lymph nodes, neither were from breast malignancy. The calculated cancer detection rate, PPV for biopsy and axillary biopsy rate was 0.3 per 1000 axillary US, 14.3% and 0.2%. Cancer rates for patients with a family or personal operation history, with cancer history and with no family/operation/cancer history were 0%, 0.1% and 0.2%, respectively. Our results indicate that the cancer detection rate and PPV for US were too low to recommend routine axillary scanning including screening breast US in patients with negative mammography and subsequent breast US, especially with no history of any cancers. PMID- 29033095 TI - Automatic Measurements of Mitral Annular Plane Systolic Excursion and Velocities to Detect Left Ventricular Dysfunction. AB - The purpose of the study described here was to evaluate an automatic algorithm for detection of left ventricular dysfunction, based on measurements of mitral annular motion indices from color tissue Doppler apical four-chamber recordings. Two hundred twenty-one patients, among whom 49 had systolic and 11 had diastolic dysfunction, were included. Echocardiographic evaluation by cardiologists was the reference. Twenty patients were also examined by medical students. The ability of the indices to detect systolic and diastolic dysfunction were compared in receiver operating characteristic analyses, and the agreement between automatic and reference measurements was evaluated. Mitral annular plane systolic excursion <=10 mm detected left ventricular dysfunction with 82% specificity, 76% specificity, 56% positive predictive value and 92% negative predictive value. The automatic measurements acquired from expert recordings better agreed better with the reference than those acquired from student recordings. We conclude that automatic measurements of systolic mitral annular motion indices can be helpful in detection of left ventricular dysfunction. PMID- 29033096 TI - Re: Left Ventricular Strain and Rotation by 2-D Speckle Tracking Echocardiography Identify Early Alcoholic Cardiomyopathy. PMID- 29033098 TI - Moving toward a precision medicine approach in metastatic castration-resistant prostate cancer. PMID- 29033097 TI - A systematic review of the inclusion of mechanisms of action in NIH-funded intervention trials to improve medication adherence. AB - Medication nonadherence contributes to morbidity/mortality, but adherence interventions yield small and inconsistent effects. Understanding the mechanisms underlying initiation and maintenance of adherence could improve interventions. The National Institutes of Health (NIH) support adherence research, but it is unclear whether existing NIH-funded research incorporates mechanisms. We conducted a systematic review to determine the proportion of NIH-funded adherence trials that have tested hypothesized mechanisms of intervention effects. We included randomized and quasi-randomized NIH-funded trials with medication adherence in adults as the primary outcome. Studies were identified by searching electronic databases from inception to 6/2016, references, and clinicaltrials.gov. Two of 18 (11%) NIH-funded trials tested a hypothesized mechanism of an intervention's effect on medication adherence. Another 44 studies with medication adherence as a secondary outcome were described in protocol form, and are either ongoing or never published results, but none mentioned mechanism tests. Overall, 3% of NIH-funded trials with adherence as an outcome conducted, or plan to conduct, tests of behavior change mechanisms. These results mirror previous findings that very few studies of behavior change interventions actually test the mechanism by which the intervention is hypothesized to improve health behaviors. We must understand mechanisms if we are to improve the effectiveness of interventions. PMID- 29033100 TI - Oxytocin receptors (OXTR) and early parental care: An interaction that modulates psychiatric disorders. AB - Oxytocin plays an important role in the modulation of social behavior in both typical and atypical contexts. Also, the quality of early parental care sets the foundation for long-term psychosocial development. Here, we review studies that investigated how oxytocin receptor (OXTR) interacts with early parental care experiences to influence the development of psychiatric disorders. Using Pubmed, Scopus and PsycInfo databases, we utilized the keyword "OXTR" before subsequently searching for specific OXTR single nucleotide polymorphisms (SNPs), generating a list of 598 studies in total. The papers were catalogued in a database and filtered for gene-environment interaction, psychiatric disorders and involvement of parental care. In particular, rs53576 and rs2254298 were found to be significantly involved in gene-environment interactions that modulated risk for psychopathology and the following psychiatric disorders: disruptive behavior, depression, anxiety, eating disorder and borderline personality disorder. These results illustrate the importance of OXTR in mediating the impact of parental care on the emergence of psychopathology. PMID- 29033099 TI - Custirsen (OGX-011) combined with cabazitaxel and prednisone versus cabazitaxel and prednisone alone in patients with metastatic castration-resistant prostate cancer previously treated with docetaxel (AFFINITY): a randomised, open-label, international, phase 3 trial. AB - BACKGROUND: Docetaxel and cabazitaxel improve overall survival compared with mitoxantrone in patients with metastatic castration-resistant prostate cancer. Custirsen (OGX011) is a second generation highly specific antisense oligonucleotide that inhibits the production of clusterin, an antiapoptotic protein that is upregulated in response to chemotherapy and that confers treatment resistance. We aimed to assess whether custirsen in combination with cabazitaxel and prednisone increases overall survival in patients with metastatic castration-resistant prostate cancer previously treated with docetaxel. METHODS: In this randomised, open-label, international, phase 3 trial, men with radiographically documented metastatic castration-resistant prostate cancer that had progressed after docetaxel treatment with a Karnofsky performance status of more than 70% and who were fit for chemotherapy, were recruited from 95 cancer treatment centres in eight countries. Patients were randomly assigned (1:1) centrally using permuted blocks (block size 8) to receive cabazitaxel plus prednisone (cabazitaxel 25 mg/m2 intravenously every 21 days plus oral prednisone 10 mg daily) with or without custirsen (640 mg intravenously on days 1, 8, and 15, plus three previous loading doses) until disease progression, unacceptable toxicity, or the completion of ten treatment cycles. Randomisation was stratified by use of opioids for prostate cancer-related pain at screening, disease progression following first-line docetaxel treatment established by radiographic evidence, and previous treatment with abiraterone or enzalutamide. The co-primary endpoints were overall survival in all randomly assigned patients and in a poor prognosis subgroup. All analyses were intention to treat with the exception of safety, which was reported for patients who received any assigned treatment. The trial has been completed and the results presented here are the final analysis. This trial is registered with Clinicaltrials.gov, number NCT01578655. FINDINGS: Between Sept 9, 2012, and Sept 29, 2014, 795 patients were screened for enrolment. 635 men were eligible for inclusion and were randomly assigned (n=317 in the cabazitaxel and prednisone plus custirsen group and n=318 in the cabazitaxel and prednisone group). Median follow up was 28.3 months (IQR 24.4 34.5) for the custirsen group and 29.8 months (IQR 25.3-35.2) for the control group. Median overall survival in all randomly assigned patients did not differ between the two groups (14.1 months [95% CI 12.7-15.9] in the curtisen group vs 13.4 months [12.1-14.9] in the control group; hazard ratio [HR] 0.95 [95% CI 0.80 1.12]; log-rank p=0.53). In the poor prognosis subgroup, median overall survival also did not differ between the two treatment groups (11.0 months [95% CI 9.3 13.3] in the custursin group vs 10.9 months [8.2-12.4] in the control group; HR 0.97 [95% CI 0.80-1.21]; two-sided p=0.80). The most frequently reported grade 3 or worse adverse events in the custirsen versus control groups were neutropenia (70 [22%] of 315 vs 61 [20%] of 312), anaemia (68 [22%] vs 49 [16%]), fatigue (23 [7%] vs 18 [6%]), asthenia (16 [5%] vs 8 [3%]), bone pain (16 [5%] vs 5 [2%]), and febrile neutropenia (16 [5%] vs 9 [3%]). Serious adverse events were reported in 155 (49%) versus 132 (42%). 27 patients died within 30 days of treatment in the cabazitaxel and prednisone plus custirsen group, seven of which were deemed to be treatment related, versus 17 in the cabazitaxel and prednisone group, eight of which were deemed to be treatment related. Of the 21 deaths reported, 15 were reported as complications related to study treatment, either chemotherapy (eight and three, respectively) or study drug (none and four, respectively). INTERPRETATION: We noted no survival benefit in men with metastatic castration resistant prostate cancer with the addition of custirsen to cabazitaxel and prednisone treatment. Cabazitaxel and prednisone remains the standard of care for patients with metastatic castration-resistant prostate cancer progressing after docetaxel chemotherapy. FUNDING: OncoGenex Pharmaceuticals. PMID- 29033101 TI - Re: Salvage High-intensity Focused Ultrasound (HIFU) for Locally Recurrent Prostate Cancer After Failed Radiation Therapy: Multi-institutional Analysis of 418 Patients. PMID- 29033102 TI - [18F]-Fluorodeoxyglucose Positron Emission Tomography and Response to Therapy in Idiopathic Retroperitoneal Fibrosis. PMID- 29033103 TI - Re: Metastasis-free Survival Is a Strong Surrogate of Overall Survival in Localized Prostate Cancer. PMID- 29033104 TI - Progesterone-releasing devices for cattle estrus induction and synchronization: Device optimization to anticipate shorter treatment durations and new device developments. AB - Synchronization programs using progesterone-releasing intravaginal devices that allow for fixed time artificial insemination are still finding increasing application in bovine reproduction. This practice is useful for rationalizing livestock management because an increased number of cows can be inseminated in one session without the need for estrus detection. Although much of the innovation related to the design and development of intravaginal devices for use in cattle took place in the previous century, progress in understanding the physiology of the bovine estrous cycle resulted in shorter treatment durations, a trend which is still continuing. In this competitive market, with little functional differentiation between the existing devices, the shorter treatment duration prompted for optimization of the progesterone content in the device, as the cost of the drug significantly contributes to the price per unit. For CIDR(r) a reduction of the progesterone content of about 30 per cent was realized. Price reduction remained an important target for further device development. Next to reduction of progesterone content, cheaper and easier to process materials like polyethylene vinyl acetate (EVA) copolymers have been explored to replace the commonly used silicone elastomers. The reengineering effort of CIDR(r) demonstrated that knowledge of release kinetics and insight into gradual depletion patterns in the device is critical for optimization of drug content without compromising performance (blood levels). More recent publications related to the use of alternative polymers like EVA and polyisoprene (IP) indicated encouraging results regarding further reduction of progesterone content. The use of EVA seems most promising, because it is in principle a low-cost polymer available in many grades and this thermoplastic polymer can be processed easily by means of commonly used techniques like injection molding and extrusion. The use of thermoplastic polymers, however, requires insight into the physical chemical phenomena related to drug dissolution and re-crystallization taking place in the polymer during processing at high temperatures. These aspects, which may critically affect product stability, are often overlooked and are prompting to cover some of the background in this review. Finally, two different innovative approaches are discussed, one related to programable electronic devices for tailored simultaneous drug release and the other is a flexible drug-loaded helix, which is retained very well in several species without causing the usual inflammatory response. PMID- 29033105 TI - Public Attitudes Toward Expanded Newborn Screening. AB - PURPOSE: There is limited research available on public knowledge and understanding of expanded newborn screening (NBS). The aims of this study were to assess current public knowledge and understanding of newborn screening disorders and procedures, perceived education needs, and preferences for the delivery of NBS information and education. An additional aim was to develop a beginning understanding of public attitudes toward screening for complex, severe, and in some cases untreatable disorders. DESIGN AND METHODS: In this preliminary descriptive study, eighty-eight participants completed surveys querying their general knowledge of NBS, preferred means of receiving NBS information and education, and their opinions about screening for severe disorders such as lysosomal storage diseases (LSD). RESULTS: Most study participants lacked general knowledge about current NBS practices, however, they supported expanding screening for severe and in some cases untreatable conditions. Most participants were enthusiastic about expanding NBS; however, those with more years of education were cautious regarding extensive costs of diagnosing and treating rare disorders. CONCLUSIONS: Newborn screening continues to evolve through new technological developments and the addition of more disorders to screening panels. More research of into public acceptance of newborn screening is needed. Addressing the educational needs of the public is important for improving their understanding of NBS and promoting patient-centered care in the era of genomic screening. PRACTICE CONSIDERATIONS: Enhanced educational efforts are necessary for improving public understanding of newborn screening. PMID- 29033106 TI - Current options for mechanical prevention of preterm birth. AB - Cervical insufficiency can be defined by a combination of obstetric history, cervical dilation on exam, and/or short cervical length in women with prior preterm birth. Options for mechanical intervention include cerclage and pessary. There is evidence to support the benefit of a cervical cerclage in women with singleton gestations who have a diagnosis of cervical insufficiency either based on second trimester painless cervical dilatation leading to recurrent early preterm births, or a history of early spontaneous preterm birth and a second trimester transvaginal ultrasound short cervical length or cervical dilation on exam. For women with multiple gestations, the benefit of a cerclage is uncertain, and further study is warranted. The pessary has also been studied for mechanical prevention of preterm birth in various populations, however the results so far have been mixed and warrants further study prior to routine use. PMID- 29033107 TI - Soluble urokinase-type plasminogen activator receptor (suPAR) and interleukin-6 levels in hyperemesis gravidarum. AB - BACKGROUND: The aim was to compare serum soluble urokinase-type plasminogen activator receptor (suPAR) levels as well as interleukin-6 levels (IL-6) in pregnant women with hyperemesis gravidarum (HG) and asymptomatic pregnant women. METHODS: Our study population consists of voluntary first trimester-pregnant women who applied to the outpatient clinic of the department of obstetrics and gynecology of Ankara Ataturk Training and Research Hospital. Between February and May 2016, 60 pregnant women were included in our prospective study. Serum suPAR and IL-6 levels were evaluated with the ELISA method. Twenty-nine pregnant women with HG and 31 asymptomatic pregnant women were included in the study. RESULTS: Serum suPAR level in the HG group was measured as 0.36 +/- 0.56 ng/ml, whereas this level in the healthy pregnant control group was measured as 0.15 +/- 0.15 ng/ml (p < 0.05). The interleukin-6 level in the HG group was 5.69 +/- 2.16 pg/ml, whereas in the control group it was measured as 3.88 +/- 0.28 pg/ml (p < 0.05). CONCLUSION: Serum suPAR and IL-6 levels proved to be high in the HG group. It is likely that suPAR could play a role in the etiopathogenesis of hyperemesis gravidarum. PMID- 29033108 TI - Clinical course in infants diagnosed with transient tachypnea of newborn: A clinical trial assessing the role of conservative versus conventional management. AB - BACKGROUND: Transient tachypnea of the newborn (TTN) is a respiratory disorder secondary to inadequate or delayed clearance of lung fluids. Early symptoms of the disease are indistinguishable from neonatal respiratory distress syndrome, pneumonia, and persistent pulmonary hypertension. Therefore, these newborns, in addition to receiving conservative management, receive antibiotics until blood cultures provide definite results. In this study, we assessed the clinical course of neonates diagnosed with TTN who received conventional versus conservative management. METHODS: One hundred and thirty neonates diagnosed as having TTN were randomly enrolled in two study groups. While patients belonging to one group received conservative management, those from the other group were treated with conventional medical therapy. RESULTS: Mean duration of hospitalization was 7 +/- 0.2 in the conventional and 5 +/- 1.5 in the conservative group. Duration of antibiotic therapy was 6.7 +/- 2.47 days in the conventional group. CONCLUSION: Newborns diagnosed with TTN without prenatal risk factors and a negative C reactive protein test do not need to be administered antibiotics and hospitalized until confirmatory blood culture results are obtained. PMID- 29033109 TI - Three years of the nationwide post-acute stroke care program in Taiwan. AB - Prolonged hospital stay and readmission are prevalent problems for stroke patients in Taiwan after the acute stage, partly due to the unmet need of post acute care. In March 2014, Taiwan's National Health Insurance Administration launched a nationwide Post-Acute Care-CerebroVascular Disease (PAC-CVD) program. The Taiwan Stroke Society, coordinating 11 allied disciplines, took responsibility for the preparation and implementation of the program. As of June 2016, 6839 consecutive stroke patients were enrolled. On discharge from the PAC program, the functional status had improved in 87.5% of patients, with a significant decrease in the mean modified Rankin Scale score from 3.7 to 3.0. The rates of readmission and mortality in the PAC group were also lower than in the control group. In conclusion, the Taiwan's PAC-CVD program is an innovative and essentially effective national program of post-acute stroke care. We believe such experience should be helpful for policy makers of stroke care worldwide. PMID- 29033110 TI - Investigating of four main carbapenem-resistance mechanisms in high-level carbapenem resistant Pseudomonas aeruginosa isolated from burn patients. AB - BACKGROUND: Pseudomonas aeruginosa is an opportunistic pathogen involved in many infections. Carbapenem-resistant P.aeruginosa has emerged as an important cause of infection in different hospitals worldwide. We aimed to determine frequencies of the four main resistance mechanisms [metallo-beta lactamase (MBL) production (blaIMP, blaVIM, blaSPM and blaNDM), overproduction of the MexAB-OprM and MexXY efflux pumps, overproduction of chromosome-encoded AmpC beta-lactamase, and reduced OprD expression] in high-level carbapenem-resistant P.aeruginosa isolated from patients with burns. METHODS: In a descriptive study, 107 P. aeruginosa isolates were collected from patients with burn injuries and tested for antibiotic susceptibility, by an E-test for carbapenems, an E-test for metallo beta-lactamase producer isolates, and PCR to detect MBL genes. Furthermore, high level carbapenem-resistant isolates were tested by real-time PCR for the expression levels of the mexB, mexY, ampC, and oprD genes. RESULTS: Amongst all P. aeruginosa isolates, 78.5%, 46.7%, and 15% were imipenem-, meropenem-, and doripenem-resistant, respectively; 72% of isolates were multidrug-resistant. The blaIMP and blaVIM genes were detected in 17.9% and 1.2% of isolates; respectively. The blaSPM and blaNDM genes were not observed. Among the resistant isolates, mexB overexpression (63.2%) was the most frequent mechanism, followed by mexY overexpression (52.6%), ampC overexpression (36.8%), and reduced oprD expression (21.1%). CONCLUSION: Emerging antimicrobial resistance in burn wound bacterial pathogens is a serious therapeutic challenge for clinicians. In the present study, most of the isolates were MDR. This finding indicated an alarming spread of resistant isolates and suggested that infection control strategies should be considered. Resistance to carbapenems is influenced by several factors, not all of which were evaluated in our study; however, the results showed that production of MBLs and overexpression of the mexB gene were the most frequent mechanisms in carbapenem-resistant isolates. PMID- 29033111 TI - Screening tools for neuropathic pain. PMID- 29033113 TI - A new facilitating technique for postpartum hysterectomy at full dilatation: Cervical clamp. AB - BACKGROUND: Postpartum hysterectomy is a life saving emergency procedure in the management of uncontrollable severe maternal hemorrhage that every obstetrician should be closely acquainted with despite developments in medical and non surgical interventions for obstetric hemorrhage. It can be difficult to detect the real boundaries of the cervix at full effacement and dilatation in patients who undergo emergency hysterectomy after vaginal delivery. METHODS: Hereby we propose a simple and effective method to ease the operation by placing two atraumatic ring forceps to the anterior and posterior sides of the cervix during the preoperative vaginal examination and leave the two ring forceps while taking the patient into surgery. The boundary of the vagina and cervix will be determined with the help of the ring forceps intraoperatively, which are already placed before the operation. RESULTS: Cervical clamp technique was successfully performed in four cases underwent to emergency postpartum hysterectomy due to uncontrollable postpartum atony. There were no postoperative complication and re exploration for the persistent hemorrhage. Postoperative FSFI scores of the cases were 26.7, 27.4, 30.3 and 30.7. CONCLUSION: Taking extra vaginal tissue from the lower level of the cervix may be avoided and the last stage of the total hysterectomy may be facilitated by this simple technique with ensuring of bleeding management. PMID- 29033112 TI - Gap between guidelines and clinical practice in heart failure with reduced ejection fraction: Results from TSOC-HFrEF registry. AB - BACKGROUND: Heart failure (HF) is a global health problem. Guidelines for the management of HF have been established in Western countries and in Taiwan. However, data from the Taiwan Society of Cardiology-Heart Failure with reduced Ejection Fraction (TSOC-HFrEF) registry showed suboptimal prescription of guideline-recommended medications. We aimed to analyze the reason of non prescription and clinical outcomes as a result of under-prescription of medications. METHODS: A total of 1509 patients hospitalized for acute HFrEF were recruited in 21 hospitals in Taiwan by the end of October 2014. Prescribed guideline-recommended medications and other relevant clinical parameters were collected and analyzed at discharge and 1 year after index hospitalization. RESULTS: At discharge, 62% of patients were prescribed with either angiotensin converting enzyme-inhibitors (ACEI) or angiotensin receptor blockers (ARB); 60% were prescribed with beta-blockers and 49% were prescribed with mineralocorticoid receptor antagonists (MRA). The proportions of patients at >=50% of the target dose for ACEI/ARB, beta-blockers and MRA were 24.4%, 20.6%, 86.2%, respectively. At 1-year follow-up, dosages of ACEI/ARB and MRA were up-titrated in about one fourth patients, and dosages of beta-blocker were up-titrated in about 40% patients. One-year mortality rate was lowest in patients who received at least 2 classes of guideline-recommended medications with >=50% of the target dose, and highest in those who received 0 or 1 class of medications. CONCLUSION: The TSOC HFrEF registry demonstrated the under-prescription of guideline-recommended medications and reluctance of physicians to up-titrate medications to target dose. Action plan needs be formulated in order to improve physician's adherence to HF guidelines. PMID- 29033114 TI - A bibliometric and social network analysis of pelvic organ prolapse during 2007 2016. AB - BACKGROUND: Pelvic organ prolapse (POP) seriously affects the life quality of old females. In the present work, we described the knowledge structure of POP in a macroscopic view, and summarized the recent research focus. METHODS: Candidates were identified through reading and screening publications from PubMed database with a MeSH term of "pelvic organ prolapse" during 2007-2016. Relevant journals and journal-affiliated countries were extracted, and essential information, such as the number of publication of each year, first authors and MeSH/subheading words, was analyzed with BICOMB. In addition, highly-frequent MeSH/subheading words were determined and classified, and co-occurrence matrices were produced accordingly. Finally, social network was utilized to analyze the knowledge structure. RESULTS: A total of 3294 publications of POP were retrieved from 364 journals. The publication of POP had a significant downward trend since the beginning of 2015. POP articles published in American and British journals were significantly more compared with other countries. The co-occurrence matrices of 37 * 37 and 55 * 55 were produced by the highly-frequent MeSH/subheading words, and then the social network analysis was performed based on them. CONCLUSION: These publications on POP were mainly from the developed countries. Surgical treatment of POP was a hot topic of POP research in recent 10 years. PMID- 29033115 TI - The impact of a quality improvement program on perioperative dental injuries. PMID- 29033116 TI - Delivering normative feedback to heavy drinking college students via text messaging: A pilot feasibility study. AB - Correcting misperceptions in drinking norms is an established method of reducing college student drinking; however, delivery of accurate norms has typically been limited to a single dose within the confines of an alcohol intervention. The present study tests the feasibility, acceptability, and preliminary efficacy of using text messages to promote pro-moderation descriptive and injunctive norms. Following a baseline survey, 68 heavy drinking college students were randomly assigned to receive 28 daily messages with either accurate norms information (experimental group, n=34) or fun facts (control group, n=34). Participants rated each message on a 5-point scale of interest, and at the end of the 28days completed a follow-up assessment of normative perceptions and drinking behavior. The study protocol was feasible: 87% of invited students completed the screener, 64% of eligible students completed the consent form, and 93% agreed to participate. All messages were delivered and 98% were rated. Regarding acceptability, the mean interest rating for the alcohol-related text messages was 2.84 (SD=1.30), and no participants withdrew from the study. Although between group differences were not observed at follow-up, participants in the experimental group showed significant reductions between baseline and follow-up on peak drinks, frequency of heavy episodic drinking (HED), negative consequences, and injunctive norms (ps<0.01). Results lay the groundwork for development of a text-based prevention strategy for use in college settings. PMID- 29033117 TI - PTGER2 activation induces PTGS-2 and growth factor gene expression in endometrial epithelial cells of cattle. AB - The prostaglandin E2 receptor 2 (PTGER2) is present in the endometrium and its gene expression is accompanied with endometrial growth, however, it is unknown whether there is endometrial repair through stimulation of growth factor gene expression that is promoted by PTGER2 activation in cattle. The aim of this study was to investigate whether PTGER2 activation can induce prostaglandin endoperoxide synthase-2 (PTGS-2) and growth factor gene expression by activating PKA and ERK signaling pathways in endometrial epithelial cells of cattle. Results demonstrated that the PTGER2 agonist, butaprost, induced cAMP/PKA and ERK activation and up-regulated PTGS-2, VEGF, CTGF, TGF-beta1 and IL-8 gene expression. These activations were less after PTGER2 antagonist, AH6809, treatment. Data suggested that PTGS-2 gene expression was induced by PTGER2 activation through the PKA and ERK pathways. Furthermore, PTGER2 activation promoted several growth factor gene expressions in endometrial epithelial cells. One potential implication of this finding is that PTGER2 activation in the endometrium of cattle could induce endometrial repair by stimulating VEGF, CTGF, TGF-beta1 and IL-8 gene expression. PMID- 29033118 TI - Physical activity, stigma, and quality of life in patients with epilepsy. AB - Indication of physical activity (PA) for people with epilepsy (PWE) is debatable. This study investigated whether the International Physical Activity Questionnaire (IPAQ) score is related to the clinical aspects of epilepsy, QOLIE-31, and the Stigma Scale of Epilepsy (SSE) score of 67 PWE at a significance level of 5% (p<0.05). About one-third (32.8%) of the PWE were sedentary/irregularly active. Lower QOLIE-31 scores and higher SSE scores were found in PWE who did not practice PA for fear of seizures and in sedentary/irregularly active PWE. Twenty three percent of the PWE stopped practicing PA for fear of seizures. The predictive factors in the logistic regression equation for not practicing physical activity for fear of seizures were the presence of depressive disorder (p=0.049) and temporal lobe epilepsy with hippocampal sclerosis (TLE-HS) (p=0.024). Most PWE are sedentary and do not practice PA for fear of seizures. Physical activity is negatively influenced by clinical aspects of epilepsy. Less PA is associated with depressive disorder, worse quality of life, and higher perception of stigma. PMID- 29033119 TI - Interpregnancy weight change and adverse maternal outcomes: a retrospective cohort study. AB - PURPOSE: Examine associations between interpregnancy body mass index (BMI) change (difference in the pre-pregnancy BMIs of two consecutive pregnancies) and gestational diabetes mellitus (GDM), pre-eclampsia (PE), gestational hypertension (GHtn), primary cesarean delivery, and vaginal birth after cesarean delivery (VBAC). METHODS: Modified Poisson regression models estimated adjusted associations. RESULTS: Every 1-unit increase in interpregnancy BMI increased risks of GDM (relative risk [RR]: 1.09; 95% confidence interval [CI], 1.07-1.11), PE (RR: 1.06; 95% CI, 1.04-1.09), GHtn (RR: 1.08; 95% CI, 1.06-1.10), and primary cesarean delivery (RR: 1.03; 95% CI, 1.01-1.05) and decreased the risk of a successful VBAC (RR: 0.98; 95% CI: 0.97-0.997) in the second pregnancy. A BMI increase of >=3 units increased risks of GDM (RR: 1.71, 95% CI, 1.52-1.93), PE (RR: 1.60, 95% CI, 1.33-1.94), GHtn (RR: 1.66, 95% CI, 1.42-1.94), and primary cesarean delivery (RR: 1.29, 95% CI, 1.12-1.49) and decreased the risk of a successful VBAC (RR: 0.89; 95% CI, 0.80-0.99) compared to women with interpregnancy BMI change within -1 and +1 unit. GDM was also increased among women increasing their BMI by >=2 but <3 units (RR: 1.40; 95% CI, 1.21-1.61) and among those gaining >=1 but <2 units (RR: 1.23; 95% CI, 1.08-1.40). CONCLUSION: An interpregnancy BMI increase of >=3 units is associated with an increased risk of all outcomes. These findings emphasize the importance of interpregnancy weight management. PMID- 29033121 TI - Prognostic significance of extranodal extension in head and neck squamous cell carcinoma cN0 patients with occult metastatic neck nodes. AB - INTRODUCTION AND OBJECTIVES: Extranodal extension in nodal metastases is an independent adverse prognostic factor in head and neck squamous cell carcinoma patients. However, few studies specifically address the subgroup of patients with no clinical evidence of nodal disease. MATERIAL AND METHODS: We retrospectively analysed data from 348 head and neck squamous cell carcinoma patients without any previous treatment and lacking clinical or radiological evidence of neck node metastases during the initial workup, treated with an elective neck dissection between 1992-2014. The incidence of occult metastatic neck nodes with extranodal extension and the impact of extranodal extension in survival were evaluated. RESULTS: The proportion of patients with occult neck node metastases was 33%. Of these, 23.5% had at least one metastatic neck node with extranodal extension. There were significant differences in the disease-specific survival rate according to neck node status. Five-year disease-specific survival for patients without histopathological metastases was 90%, for patients with occult neck node metastases without extranodal extension it was 71.2%, and for patients with occult neck node metastases with extranodal extension it was 25.9% (P=.0001). The multivariate analysis revealed that the presence of occult node metastases with extranodal extension was the factor with strongest impact on survival. The inclusion of the extranodal extension as a criterion of histopathological evaluation in the 8th TNM classification edition improves the prognostic capacity compared to previous TNM editions. CONCLUSIONS: Appearance of metastatic neck nodes with extranodal extension is an adverse prognostic factor in head and neck squamous cell carcinoma patients without clinical evidence of regional disease during the initial workup of the tumour. PMID- 29033120 TI - Heart rate variability and lifetime risk of cardiovascular disease: the Atherosclerosis Risk in Communities Study. AB - PURPOSE: The purpose of this study was to estimate the heart rate variability (HRV)-related lifetime cardiovascular disease (CVD) risk. METHODS: We followed 9744 participants without baseline CVD and used a life-table approach to estimate lifetime CVD risk (coronary heart disease, heart failure, and stroke) from 45 through 85 years according to several HRV measures (the SD of RR intervals [SDNN], the root mean square of successive differences of successive RR intervals, the mean of all normal RR intervals [meanNN], low-frequency [LF] and high-frequency [HF] power, and the LF/HF ratio). RESULTS: During 192,110 person years of follow-up, we documented 2856 CVD events. Cox regression analyses with the false discovery rate method correction showed independent associations of SDNN, meanNN, LF, and LF/HF in women with CVD. Lifetime CVD risks in the lowest compared with the highest tertile were significantly increased in men for LF/HF (51.3% [95% confidence interval, 47.3-54.7] vs. 43.9% [40.1-47.2]), and in women for SDNN (39.4% [36.0-43.0] vs. 29.9% [26.3-33.0]), meanNN (39.3% [35.7-42.7] vs. 28.9% [25.7-31.7]), LF (39.4% [35.9-43.0] vs. 30.0% [26.2-33.2]), and LF/HF (37.6% [33.9-40.9] vs. 30.0% [26.8-32.7]). CONCLUSIONS: Greater HRV was modestly associated with lower lifetime CVD risk. PMID- 29033122 TI - Comments on the assessment of nasal obstruction with rhinomanometry and subjective scales and outcomes of surgical and medical treatment. PMID- 29033123 TI - Diagnosis and treatment of otitis media with effusion: CODEPEH recommendations. AB - The incidence and the prevalence rates of otitis media with effusion (OME) are high. However, there is evidence that only a minority of professionals follow the recommendations provided in clinical practice guidelines. For the purpose of improving diagnosis and treatment of OME in children to prevent and/or reduce its impact on children's development, the Commission for the Early Detection of Deafness (CODEPEH) has deeply reviewed the scientific literature on this field and has drafted a document of recommendations for a correct clinical reaction to of OME, including diagnosis and medical and surgical treatment methodology. Among others, medication, in particular antibiotics and corticoids, should not be prescribed and 3 months of watchful waiting should be the first adopted measure. If OME persists, an ENT doctor should assess the possibility of sugical treatment. The impact of OME in cases of children with a comorbidity is higher, so it requires immediate reaction, without watchful waiting. PMID- 29033124 TI - Analysis of audiometric relapse-free survival in patients with immune-mediated hearing loss exclusively treated with corticosteroids. AB - OBJECTIVE: To describe the results in terms of audiometric relapse-free survival and relapse rate in immunomediated hearing loss patients treated exclusively with corticosteroids. METHOD: Retrospective study of patients with audiometric relapses, monitored from 1995 to 2014, in two centres of the Community of Madrid. RESULTS: We evaluated 31 patients with a mean age of 48.52 years (14.67 SD), of which 61.3% were women. Most hearing loss was fluctuating (48.4%). Only 16.1% of patients had systemic autoimmune disease. There is a moderate positive correlation between the sex variable and the systemic involvement variable (Spearman's correlation coefficient=0.356): specifically, between being female and systemic disease. The relative incidence rate of relapse in the first year was 2.01 relapses/year with a 95% CI (1.32 to 2.92). The mean survival time of the event (audiometric relapse) was 5.25 months (SD 0.756). With multivariate analysis, the only variable that achieved statistical significance was age, with a hazard ratio of 1.032 (95% CI; 1.001-1.063, P=.043). CONCLUSIONS: Immune mediated disease of the inner ear is a chronic disease with relapses. Half of the patients with immunomediated hearing loss treated exclusively with corticosteroids relapse before 6 months of follow-up. In addition, if a patient has not relapsed, they are more likely to relapse as each year passes. Analysis of the of audiometric relapse- free survival will enable the effect of future treatments to be compared and their capacity to reduce the rhythm of relapses. PMID- 29033125 TI - Mammary analogue secretory carcinoma of salivary glands: Report of clinical case. PMID- 29033126 TI - Vertigo and dizziness in hospital: Attendance, flow and characteristics of patients. AB - INTRODUCTION AND OBJECTIVES: Vertigo and dizziness as symptoms are frequent in the population. They are present in a wide range of pathologies and it is usually difficult to make an accurate diagnosis. The general objective of this study is to obtain the information to evaluate vertigo and dizziness in the hospital setting. The specific objectives are: to estimate the burden of these symptoms at the hospital; to study patients' conditions and to detail the flow of these patients inside the hospital. METHODS: Observational descriptive study. We made a search of the referral proposals made in 2011 and 2012 to the hospital because of vertigo symptoms. The patients' demographic and clinical characteristics, and the administrative details of the referrals were analysed. RESULTS: A total of 558 proposals were analysed corresponding to 494 patients. Vertigo accounted for 0.5% of all referrals made from Primary Care to the hospital. Sixty-three percent of the sample were women; the average age was 58 years. Eighty-eight percent of the patients were evaluated by Otorhinolaryngology, 24% by Neurology. Thirty point eight percent consulted on 3 or more occasions for the symptom. Sixteen percent were assessed for psychiatric conditions in the hospital. CONCLUSIONS: Vertigo as a symptom is a significant burden in the hospital setting. The patients who suffer it consult on several occasions and are assessed by different specialties. This implies in some cases an excessive and ineffective flow of patients. In our setting, otorhinolaryngology is the main department to treat vertigo and dizziness patients. PMID- 29033127 TI - Mechanism of Transcription Anti-termination in Human Mitochondria. AB - In human mitochondria, transcription termination events at a G-quadruplex region near the replication origin are thought to drive replication of mtDNA by generation of an RNA primer. This process is suppressed by a key regulator of mtDNA-the transcription factor TEFM. We determined the structure of an anti termination complex in which TEFM is bound to transcribing mtRNAP. The structure reveals interactions of the dimeric pseudonuclease core of TEFM with mobile structural elements in mtRNAP and the nucleic acid components of the elongation complex (EC). Binding of TEFM to the DNA forms a downstream "sliding clamp," providing high processivity to the EC. TEFM also binds near the RNA exit channel to prevent formation of the RNA G-quadruplex structure required for termination and thus synthesis of the replication primer. Our data provide insights into target specificity of TEFM and mechanisms by which it regulates the switch between transcription and replication of mtDNA. PMID- 29033128 TI - The DNA Inflammasome in Human Myeloid Cells Is Initiated by a STING-Cell Death Program Upstream of NLRP3. AB - Detection of cytosolic DNA constitutes a central event in the context of numerous infectious and sterile inflammatory conditions. Recent studies have uncovered a bipartite mode of cytosolic DNA recognition, in which the cGAS-STING axis triggers antiviral immunity, whereas AIM2 triggers inflammasome activation. Here, we show that AIM2 is dispensable for DNA-mediated inflammasome activation in human myeloid cells. Instead, detection of cytosolic DNA by the cGAS-STING axis induces a cell death program initiating potassium efflux upstream of NLRP3. Forward genetics identified regulators of lysosomal trafficking to modulate this cell death program, and subsequent studies revealed that activated STING traffics to the lysosome, where it triggers membrane permeabilization and thus lysosomal cell death (LCD). Importantly, the cGAS-STING-NLRP3 pathway constitutes the default inflammasome response during viral and bacterial infections in human myeloid cells. We conclude that targeting the cGAS-STING-LCD-NLRP3 pathway will ameliorate pathology in inflammatory conditions that are associated with cytosolic DNA sensing. PMID- 29033129 TI - Genome-Nuclear Lamina Interactions Regulate Cardiac Stem Cell Lineage Restriction. AB - Progenitor cells differentiate into specialized cell types through coordinated expression of lineage-specific genes and modification of complex chromatin configurations. We demonstrate that a histone deacetylase (Hdac3) organizes heterochromatin at the nuclear lamina during cardiac progenitor lineage restriction. Specification of cardiomyocytes is associated with reorganization of peripheral heterochromatin, and independent of deacetylase activity, Hdac3 tethers peripheral heterochromatin containing lineage-relevant genes to the nuclear lamina. Deletion of Hdac3 in cardiac progenitor cells releases genomic regions from the nuclear periphery, leading to precocious cardiac gene expression and differentiation into cardiomyocytes; in contrast, restricting Hdac3 to the nuclear periphery rescues myogenesis in progenitors otherwise lacking Hdac3. Our results suggest that availability of genomic regions for activation by lineage specific factors is regulated in part through dynamic chromatin-nuclear lamina interactions and that competence of a progenitor cell to respond to differentiation signals may depend upon coordinated movement of responding gene loci away from the nuclear periphery. PMID- 29033131 TI - Oxysterol Restraint of Cholesterol Synthesis Prevents AIM2 Inflammasome Activation. AB - Type I interferon restrains interleukin-1beta (IL-1beta)-driven inflammation in macrophages by upregulating cholesterol-25-hydroxylase (Ch25h) and repressing SREBP transcription factors. However, the molecular links between lipid metabolism and IL-1beta production remain obscure. Here, we demonstrate that production of 25-hydroxycholesterol (25-HC) by macrophages is required to prevent inflammasome activation by the DNA sensor protein absent in melanoma 2 (AIM2). We find that in response to bacterial infection or lipopolysaccharide (LPS) stimulation, macrophages upregulate Ch25h to maintain repression of SREBP2 activation and cholesterol synthesis. Increasing macrophage cholesterol content is sufficient to trigger IL-1beta release in a crystal-independent but AIM2 dependent manner. Ch25h deficiency results in cholesterol-dependent reduced mitochondrial respiratory capacity and release of mitochondrial DNA into the cytosol. AIM2 deficiency rescues the increased inflammasome activity observed in Ch25h-/-. Therefore, activated macrophages utilize 25-HC in an anti-inflammatory circuit that maintains mitochondrial integrity and prevents spurious AIM2 inflammasome activation. PMID- 29033130 TI - Tumor and Microenvironment Evolution during Immunotherapy with Nivolumab. AB - The mechanisms by which immune checkpoint blockade modulates tumor evolution during therapy are unclear. We assessed genomic changes in tumors from 68 patients with advanced melanoma, who progressed on ipilimumab or were ipilimumab naive, before and after nivolumab initiation (CA209-038 study). Tumors were analyzed by whole-exome, transcriptome, and/or T cell receptor (TCR) sequencing. In responding patients, mutation and neoantigen load were reduced from baseline, and analysis of intratumoral heterogeneity during therapy demonstrated differential clonal evolution within tumors and putative selection against neoantigenic mutations on-therapy. Transcriptome analyses before and during nivolumab therapy revealed increases in distinct immune cell subsets, activation of specific transcriptional networks, and upregulation of immune checkpoint genes that were more pronounced in patients with response. Temporal changes in intratumoral TCR repertoire revealed expansion of T cell clones in the setting of neoantigen loss. Comprehensive genomic profiling data in this study provide insight into nivolumab's mechanism of action. PMID- 29033134 TI - Biochemical methane potential (BMP) tests: Reducing test time by early parameter estimation. AB - Biochemical methane potential (BMP) test is a key analytical technique to assess the implementation and optimisation of anaerobic biotechnologies. However, this technique is characterised by long testing times (from 20 to >100days), which is not suitable for waste utilities, consulting companies or plants operators whose decision-making processes cannot be held for such a long time. This study develops a statistically robust mathematical strategy using sensitivity functions for early prediction of BMP first-order model parameters, i.e. methane yield (B0) and kinetic constant rate (k). The minimum testing time for early parameter estimation showed a potential correlation with the k value, where (i) slowly biodegradable substrates (k<=0.1d-1) have a minimum testing times of >=15days, (ii) moderately biodegradable substrates (0.1=0.2d 1) have testing times lower than 7days. PMID- 29033132 TI - Assembly and Function of Heterotypic Ubiquitin Chains in Cell-Cycle and Protein Quality Control. AB - Posttranslational modification with ubiquitin chains controls cell fate in all eukaryotes. Depending on the connectivity between subunits, different ubiquitin chain types trigger distinct outputs, as seen with K48- and K63-linked conjugates that drive protein degradation or complex assembly, respectively. Recent biochemical analyses also suggested roles for mixed or branched ubiquitin chains, yet without a method to monitor endogenous conjugates, the physiological significance of heterotypic polymers remained poorly understood. Here, we engineered a bispecific antibody to detect K11/K48-linked chains and identified mitotic regulators, misfolded nascent polypeptides, and pathological Huntingtin variants as their endogenous substrates. We show that K11/K48-linked chains are synthesized and processed by essential ubiquitin ligases and effectors that are mutated across neurodegenerative diseases; accordingly, these conjugates promote rapid proteasomal clearance of aggregation-prone proteins. By revealing key roles of K11/K48-linked chains in cell-cycle and quality control, we establish heterotypic ubiquitin conjugates as important carriers of biological information. PMID- 29033135 TI - One-year recombinant growth hormone therapy does not improve hemoglobin state and morphology of erythrocytes in growth hormone deficient children. AB - An increase in growth rates of children suffering from growth hormone deficiency (GHD) subjected to recombinant growth hormone treatment (rGHT) was shown to be accompanied by acceleration of metabolic processes that may stimulate oxygen consumption in various organs and tissues. Therefore, oxygen-transporting properties of RBC should undergo considerable changes during the rGHT. The aim of this study was to examine the effects of rGHT on erythrocyte shape and hemoglobin state in GHD children. The level of oxyhemoglobin (Oxy-Hb) in RBC was analyzed by Raman spectroscopy. The RBC count, mean corpuscular hemoglobin (MCH), mean corpuscular volume (MCV) and other parameters were calculated. The blood of eleven treatment-naive prepubertal children with GHD (aged 3-9, median 5.7 years) was examined and compared with control group (aged 5-7; median 6.0 years) at three time points: 0, 3 and 12 months of rGHT. Before rGHT, the MI in GHD children was higher (median 0.48 vs 0.14 p=0.0018) and the RBC count was lower (median 4.20 vs 4.96 1012 cells/L p=0.0022) than in control group. After the treatment, cell count in GHD patients did not differ significantly from the control group, but Oxy-Hb level became higher (median 0.64 vs 0.41 p=0.0075). During rGHT, MCV decreased (median 80.3 vs 83.2MUm3 p=0.0231). Morphological and functional characteristics of erythrocytes in GHD children were shown to differ significantly from the healthy control group. A twelve-month rGHT partially improved some of the studied parameters but Oxy-Hb level and echinocyte count remained high. PMID- 29033136 TI - Diets of mammalian fossil fauna from Kanapoi, northwestern Kenya. AB - Carbon isotope ratios of mammalian teeth from the Kanapoi site in northern Kenya are interpreted in the context of C3 and C4 derived resources to investigate the paleoecology of Australopithecus anamensis. delta13C values of large mammals, when compared at the taxon level, show an ecosystem that is strongly biased towards mixed feeders and browsers. However, sufficient C4 resources were present such that some C4 dominated grazers were also present in the large mammal fauna. Analyses of micromammals shows that their diets were C3 dominated or C3-C4 mixed. Carbon isotope studies of primates shows that the major primate tribes-Colobini, Papioini, Hominini-all made some use of C4 resources in their respective diets; the Hominini had a higher fraction of C3 diet resources than the other primate tribes represented in the fossil record. PMID- 29033133 TI - Natively Unfolded FG Repeats Stabilize the Structure of the Nuclear Pore Complex. AB - Nuclear pore complexes (NPCs) are ~100 MDa transport channels assembled from multiple copies of ~30 nucleoporins (Nups). One-third of these Nups contain phenylalanine-glycine (FG)-rich repeats, forming a diffusion barrier, which is selectively permeable for nuclear transport receptors that interact with these repeats. Here, we identify an additional function of FG repeats in the structure and biogenesis of the yeast NPC. We demonstrate that GLFG-containing FG repeats directly bind to multiple scaffold Nups in vitro and act as NPC-targeting determinants in vivo. Furthermore, we show that the GLFG repeats of Nup116 function in a redundant manner with Nup188, a nonessential scaffold Nup, to stabilize critical interactions within the NPC scaffold needed for late steps of NPC assembly. Our results reveal a previously unanticipated structural role for natively unfolded GLFG repeats as Velcro to link NPC subcomplexes and thus add a new layer of connections to current models of the NPC architecture. PMID- 29033137 TI - The global problem of early deaths in acute promyelocytic leukemia: A strategy to decrease induction mortality in the most curable leukemia. AB - Acute promyelocytic leukemia (APL) is a hyper-acute illness and presents with profound cytopenias in most patients and disseminated intravascular coagulation (DIC). Excellent treatment options are now available with drugs such as all-trans retinoic acid (ATRA), arsenic trioxide (ATO), anthracyclines and cytarabine. The outcome in APL has improved tremendously in the last 50years due to better understanding of the disease, development of effective targeted agents and improvement in supportive care. Carefully selected groups of patients treated in large multi-center trials on a protocol and in experienced centers have shown survival rates in excess of 85%. However population data and other studies show that approximately 30% of patients die during induction. This is an Institutional, national and global problem and remains a pressing and frustrating challenge in APL. While most APL experts are aware of the high rate of early deaths (ED), such awareness is not typically present among general hematologists and oncologists. Our area of focus over the last 7years has been the reduction of ED in both academic and community centers; as a result we have acquired substantial experience in APL induction. Two centers have implemented population wide prospective trials; Brazil and Georgia/South Carolina, USA with improvement in the ED rate. Both centers used standardized guidelines along with consultative support and sharing of expertise which proved effective and helped to decrease ED. Induction mortality in APL is 30% or greater. We believe ED is largely preventable and population-wide survival can be improved. An effective strategy is to utilize a set of simplified treatment guidelines coupled with support from a group of experts during induction. Treating oncologists in both academic and community hospitals should receive aggressive education about ED and be encouraged to seek advice from a core group of established APL experts. This model could be implemented nationally to improve population-wide survival in this most curable leukemia. PMID- 29033139 TI - The Problem with Diagnosis of Intestinal Schistosomiasis. PMID- 29033138 TI - Do You Believe It? Verbal Suggestions Influence the Clinical and Neural Effects of Escitalopram in Social Anxiety Disorder: A Randomized Trial. AB - BACKGROUND: Selective serotonin reuptake inhibitors (SSRIs) are commonly prescribed for depression and anxiety, but their efficacy relative to placebo has been questioned. We aimed to test how manipulation of verbally induced expectancies, central for placebo, influences SSRI treatment outcome and brain activity in patients with social anxiety disorder (SAD). METHODS: We did a randomized clinical trial, within an academic medical center (Uppsala, Sweden), of individuals fulfilling the DSM-IV criteria for SAD, recruited through media advertising. Participants were 18years or older and randomized in blocks, through a computer-generated sequence by an independent party, to nine weeks of overt or covert treatment with escitalopram (20mg daily). The overt group received correct treatment information whereas the covert group was treated deceptively with the SSRI described, by the psychiatrist, as active placebo. The treating psychiatrist was necessarily unmasked while the research staff was masked from intervention assignment. Treatment efficacy was assessed primarily with the self-rated Liebowitz Social Anxiety Scale (LSAS-SR), administered at week 0, 1, 3, 6 and 9, also yielding a dichotomous estimate of responder status (clinically significant improvement). Before and at the last week of treatment, brain activity during an emotional face-matching task was assessed with functional magnetic resonance imaging (fMRI) and during fMRI sessions, anticipatory speech anxiety was also assessed with the Spielberger State-Trait Anxiety Inventory - State version (STAI S). Analyses included all randomized patients with outcome data at posttreatment. This study is registered at ISRCTN, number 98890605. FINDINGS: Between March 17th 2014 and May 22nd 2015, 47 patients were recruited. One patient in the covert group dropped out after a few days of treatment and did not provide fMRI data, leaving 46 patients with complete outcome data. After nine weeks of treatment, overt (n=24) as compared to covert (n=22) SSRI administration yielded significantly better outcome on the LSAS-SR (adjusted difference 21.17, 95% CI 10.69-31.65, p<0.0001) with more than three times higher response rate (50% vs. 14%; chi2(1)=6.91, p=0.009) and twice the effect size (d=2.24 vs. d=1.13) from pre-to posttreatment. There was no significant between-group difference on anticipatory speech anxiety (STAI-S), both groups improving with treatment. No serious adverse reactions were recorded. On fMRI outcomes, there was suggestive evidence for a differential neural response to treatment between groups in the posterior cingulate, superior temporal and inferior frontal gyri (all z thresholds exceeding 3.68, p<=0.001). Reduced social anxiety with treatment correlated significantly with enhanced posterior cingulate (z threshold 3.24, p=0.0006) and attenuated amygdala (z threshold 2.70, p=0.003) activity. INTERPRETATION: The clinical and neural effects of escitalopram were markedly influenced by verbal suggestions. This points to a pronounced placebo component in SSRI-treatment of SAD and favors a biopsychosocial over a biomedical explanatory model for SSRI efficacy. FUNDING RESOURCES: The Swedish Research Council for Working Life and Social Research (grant 2011-1368), the Swedish Research Council (grant 421-2013-1366), Riksbankens Jubileumsfond - the Swedish Foundation for Humanities and Social Sciences (grant P13-1270:1). PMID- 29033140 TI - The Interplay of Protein Coding and Non-Coding RNAs (circRNAs, lncRNAs) During Cardiac Differentiation. PMID- 29033141 TI - Discussion of: "Not every trauma patient with a radiographic head injury requires transfer for neurosurgical evaluation: Application of the brain injury guidelines to patients transferred to a level 1 trauma center". PMID- 29033143 TI - Measurement and reporting of pressure ulcer related harm in NHS Hospitals in England. PMID- 29033142 TI - Discussion of: "Re-excision rates after breast conserving surgery following the 2014 SSO-ASTRO guidelines". PMID- 29033144 TI - Impaired anti-inflammatory activity of PPARgamma in the salivary epithelia of Sjogren's syndrome patients imposed by intrinsic NF-kappaB activation. AB - Sjogren's syndrome (SS) patients manifest inflammation in the salivary glands (SG) and evidence of persistent intrinsic activation of ductal SG epithelial cells (SGEC), demonstrable in non-neoplastic SGEC lines derived from patients (SS SGEC). The peroxisome-proliferator-activated receptor-gamma (PPARgamma) mediates important anti-inflammatory activities in epithelial cells. Herein, the comparative analysis of SG biopsies and SGEC lines obtained from SS patients and controls had revealed constitutively reduced PPARgamma expression, transcriptional activity and anti-inflammatory function in the ductal epithelia of SS patients that were associated with cell-autonomously activated NF-kappaB and IL-1beta pathways. Transcriptome profiling analysis revealed several differentially expressed proinflammatory and metabolism-related gene sets in SS SGEC lines. These aberrations largely correlated with the severity of histopathologic lesions, the disease activity and the occurrence of adverse manifestations in SS patients studied, a fact which corroborates the key role of the persistently-activated epithelia in the pathogenesis of both local and systemic features of this disease. The treatment of control SGEC lines with PPARgamma agonists was found to diminish the NF-kappaB activation and apoptosis induced by proinflammatory agents. In addition, the in-vitro application of PPARgamma agonists and pharmacologic inhibitors of IL-1beta and NF-kappaB had significant beneficial effects on SS-SGEC lines, such as the restoration of PPARgamma functions and the reduction of their intrinsic activation, a fact which may advocate the future clinical study of the above agents as therapeutic modalities for SS. PMID- 29033145 TI - A novel optimization algorithm for MIMO Hammerstein model identification under heavy-tailed noise. AB - In this paper, we study the system identification of multi-input multi-output (MIMO) Hammerstein processes under the typical heavy-tailed noise. To the best of our knowledge, there is no general analytical method to solve this identification problem. Motivated by this, we propose a general identification method to solve this problem based on a Gaussian-Mixture Distribution intelligent optimization algorithm (GMDA). The nonlinear part of Hammerstein process is modeled by a Radial Basis Function (RBF) neural network, and the identification problem is converted to an optimization problem. To overcome the drawbacks of analytical identification method in the presence of heavy-tailed noise, a meta-heuristic optimization algorithm, Cuckoo search (CS) algorithm is used. To improve its performance for this identification problem, the Gaussian-mixture Distribution (GMD) and the GMD sequences are introduced to improve the performance of the standard CS algorithm. Numerical simulations for different MIMO Hammerstein models are carried out, and the simulation results verify the effectiveness of the proposed GMDA. PMID- 29033146 TI - The prevalence and performance of resistance exercise training activities in an Australian population in relation to health authority guidelines. AB - OBJECTIVES: Resistance training research highlights the importance of training intensity to resistance exercise training (RET) and the associated benefits to health and function for healthy and at-risk populations. The American College of Sports Medicine (ACSM) recommend specific intensities, frequencies, repetitions, and number of exercises of RET to be performed to maintain health. The primary aim of this study was to describe the prevalence of achieving recommended levels of RET in relation to ACSM guidelines for intensity, frequency, repetitions, and number of exercises in a regional Australian population. DESIGN: A Computer Assisted-Telephone-Interview (CATI) survey (n=1237) was conducted to determine RET participation. METHODS: Participants were 18 years plus, residing in Central Queensland, Australia. RESULTS: The prevalence of respondents performing 'No RET', 'insufficient RET' and 'sufficient RET' were 79.6.0%, 15.2% and 5.2% respectively. Significantly higher proportions of younger adults adhered to all RET guidelines for intensity (19.2 vs 8.1%), frequency (19.9 vs 11.6%), repetitions (17.8 vs 6.3%), and number of exercises (8.2 vs 3.6%) (p<0.05). Significantly higher proportions of males, younger adults (18-34 years), higher educated individuals (>15 years), and individuals engaging in sufficient levels of aerobic exercise training (AET) engaged in sufficient levels of RET (p<0.05). CONCLUSIONS: The prevalence of Australian's participating in regular RET programs is low and only a small proportion of participants meet ACSM guidelines for the quantity and quality of RET that is likely to provide health benefits. This has implications for public health policy and the future development and promotion of population-level RET guidelines. PMID- 29033147 TI - Apparent Diffusion Coefficient Value to Evaluate Tumor Response After Neoadjuvant Chemotherapy in Patients with Breast Cancer. AB - RATIONALE AND OBJECTIVES: This study explored tumor behavior in patients with breast cancer during neoadjuvant chemotherapy (NAC) by sequential measurements of tumor apparent diffusion coefficient (ADC) after each chemotherapy cycle. The aim was to determine if the tumor ADC is useful to differentiate complete pathological response (cPR) from partial pathological response (pPR) during NAC. MATERIALS AND METHODS: A total of 16 cases (in 14 patients) with diagnosis of breast cancer eligible to receive NAC were included. There were 70 magnetic resonance imaging examinations performed, 5 for each patient, during NAC cycles. Diffusion-weighted imaging was performed on a 1.5T system (b values of 0 and 700s/mm2). Four ADC ratios between the five MRI examinations were obtained to assess ADC changes during NAC. Absence of invasive breast cancer at surgical specimens (Miller-Payne 5) was considered as cPR and was used as reference for ADC cutoff ratios. RESULTS: In this study, we were able to differentiate between cPR and pPR, after two cycles of NAC until the end of NAC before surgery (ADC ratios 2-4). The thresholds to differentiate between cPR and pPR of ADC ratios 2, 3, and 4, were 1.14 * 10-3mm2/s, 1.08 * 10-3mm2/s, and 1.25 * 10-3mm2/s, respectively, and have a cross-validated sensitivity and specificity of 79.2%, 79.7% (ADC ratio 2); 100%, 66.7% (ADC ratio 3); and 100%, 83.8% (ADC ratio 4), respectively. CONCLUSIONS: The ADC ratios were useful to differentiate cPR from pPR in breast cancer tumors after NAC. Thus, it may be useful in tailoring treatment in these patients. PMID- 29033148 TI - Medial approach for minimally-invasive harvesting of a deep circumflex iliac artery flap for reconstruction of the jaw using virtual surgical planning and CAD/CAM technology. AB - Donor site morbidity is the most common limitation of the deep circumflex iliac artery (DCIA) flap, so the purpose of this paper is to describe a new, minimally invasive, approach to its harvest using virtual surgical planning and CAD/CAM technology to reduce functional and aesthetic morbidity at the donor site. Virtual surgical planning was based on preoperative computed tomographic data. A newly-designed surgical guide made using CAD/CAM technology was used to transfer the virtual surgical plan to the site of operation. This enabled us to raise a bicortical flap from the pelvis with preservation of the anterior superior iliac crest from the medial side with minimal muscular stripping. The guide, designed at slightly less than 90 degrees to the lateral cortex, allowed the cut segment of bone to be raised medially. The new virtual surgical planning guide allowed a medial approach with reduced stripping of muscle and lower morbidity. No complications were encountered during the operation or the healing phase. Patients treated in this way had a shorter recovery period, with minimal complaints about walking or loss of profile of the hip. We conclude that virtual surgical planning can aid a minimally-invasive approach with predictable results. This allows a medial approach to the harvest of DCIA with preservation of important anatomical structures, and a reduction in donor site morbidity. PMID- 29033149 TI - Management of cervicofacial infections: a survey of current practice in maxillofacial units in the UK. AB - Cervicofacial infections are common emergency presentations to maxillofacial departments in the UK, there is no consensus about their management and, in particular, the role of corticosteroids is not clear. Our aim was to find out the current practice of UK maxillofacial surgeons in managing these infections using a multicentre questionnaire study. The questionnaire was designed, piloted, and revised before distribution, and questions were asked to assess preoperative, operative, and postoperative management. It was distributed to maxillofacial surgeons throughout the UK through the Maxillofacial Research Trainee Collaborative (MTReC) network, and at the 2016 British Association of Oral and Maxillofacial Surgeons (BAOMS) Junior Trainees Group conference. A total of 350 questionnaires were distributed to 17 maxillofacial units. Eighty-six questionnaires were distributed at the BAOMS Junior Trainee conference. An overall response rate of 92% (n=324) was achieved. The results showed that there were important differences in reported practice between and within maxillofacial units in the UK in managing these infections. The antibiotic regimens and use of steroids varied widely. Twenty-three per cent of respondents had to wait over 24hours for access to emergency theatres. However, these results provide no hard evidence for or against the use of corticosteroids in cervicofacial infections. PMID- 29033150 TI - Extraction of triazole fungicides in environmental waters utilizing poly (ionic liquid)-functionalized magnetic adsorbent. AB - This work prepared a new poly (ionic liquid)-functionalized magnetic adsorbent (PFMA) for the extraction of triazole fungicides (TFs) in environmental waters prior to determination by high performance liquid chromatography/diode array detection (HPLC-DAD). A polymerizable ionic liquid, 1-methyl-3-allylimidazolium bis(trifluoromethylsulfonyl)imide was employed to copolymerize with divinylbenzene on the surface of modified magnetite to fabricate the PFMA. The morphology, spectroscopic and magnetic properties of the new adsorbent were investigated by different techniques. A series of key parameters that influence the extraction performance including the amount of PFMA, desorption solvent, adsorption and desorption time, sample pH value and ionic strength were optimized in detail. Under the optimum conditions, the prepared PFMA could extract targeted TFs effectively and quickly under the format of magnetic solid-phase extraction (MSPE). Satisfactory linearities were achieved in the range of 0.1-200.0MUg/L for triadimenol and 0.05-200.0MUg/L for other TFs with good coefficients of determination above 0.99 for all analytes. The limits of detection (S/N=3) and limits of quantification (S/N=10) for TFs were in the range of 0.0050-0.0078MUg/L and 0.017-0.026MUg/L, respectively. Environmental waters including lake, river and well waters were used to demonstrate the applicability of developed MSPE-HPLC DAD method, and satisfactory recoveries and repeatability were obtained. PMID- 29033151 TI - Is it adequate to carry out a chest-CT in patients with mild-moderate chest trauma? AB - Mild-moderate blunt chest trauma is defined as a blunt chest trauma that is not caused by a high-energy mechanism, causing thoracic tenderness with or without rib fractures and that has no immediate life-threatening consequences for the patient. It is a frequent clinical situation in the emergency department. The most common radiological techniques that are used in this context are chest X-ray and thoracic computed tomography (CT). The CT scan is set as the gold standard. However, there are no current clinical-radiological guidelines that establish the adequacy of the requests of the CT scan. Therefore, we decided to search for evidence-based recommendations to improve the adequacy of the chest X-ray and CT scan in our daily practice in order to reduce the costs and avoid unnecessary radiation exposure. PMID- 29033152 TI - Intraoperative Infiltration of Liposomal Bupivacaine vs Bupivacaine Hydrochloride for Pain Management in Primary Total Hip Arthroplasty: A Prospective Randomized Trial. AB - BACKGROUND: Pain management after total hip arthroplasty is well studied. Nevertheless, there is no consensus regarding the "cocktail" to use in periarticular infiltration (PAI). Liposomal bupivacaine (LB) is a slow release local anesthetic that can be infiltrated during surgery. In this study, we compared LB to bupivacaine hydrochloride (HCL). METHODS: Between September 2014 and March 2016, 181 patients were screened for this prospective randomized trial. A total of 107 patients were enrolled and studied. Patients were separated into LB and control groups. LB group (50) received PAI with LB and bupivacaine HCL with epinephrine and the control group (57) received PAI with bupivacaine HCL and epinephrine. Patient morphine equivalent consumption, pain score estimated on visual analog scale, time to first ambulation greater than 20 feet, time to discharge, drug-related side effects, and patient falls were documented. Data were collected up to 72 hours postoperation. RESULTS: There was no significant difference in morphine equivalent consumption in any of the 12-hour time blocks, up to 72 hours. No patient falls were documented in either group. Time to first ambulation greater than 20 feet, ambulation same day as surgery, time to discharge, and drug-related side effects were not significantly different between groups. CONLCUSION: Intraoperative PAI with LB did not result in significant differences in postoperative opioid consumption, pain scores, opioid-related side effects, time to first ambulation, and length of stay up to 72 hours following total hip arthroplasty compared to a control group. PMID- 29033153 TI - Clinical Outcomes and Survivorship of Lateral Unicompartmental Knee Arthroplasty: Does Surgical Approach Matter? AB - BACKGROUND: Lateral unicompartmental knee arthroplasty (UKA) has been shown to be an effective procedure to treat isolated lateral compartment osteoarthritis with excellent long-term survivorship. Whether a medial parapatellar approach or a lateral parapatellar approach is superior in lateral UKA is unknown. The purpose of this study was to determine if there is a difference in intermediate-term clinical outcomes in patients undergoing lateral UKA through a lateral vs medial parapatellar approach. METHODS: We retrospectively reviewed a consecutive series of 65 patients who underwent lateral UKA with a minimum of 2-year follow-up. Fifty-two patients (80%) had a lateral approach and 13 (20%) a medial parapatellar approach. Patient demographics, preoperative and postoperative radiographic findings, need for revision surgery, Knee Society Score, and range of motion were assessed. RESULTS: Overall survivorship was 94% at a mean of 82 months; with the sample size available for study, there was no difference in survivorship between the groups. There was no difference in Knee Society Score or revision to total knee arthroplasty (5% vs 7%, P = 1.000) between the medial and lateral approach groups. Comparatively, the lateral approach group did have significantly greater postoperative flexion (123.6 degrees vs 116.5 degrees , P = .006) and greater improvement in flexion from preoperative measurements (3.0 vs -8.0 degrees , P = .010). CONCLUSION: Although our sample size was small, we could not demonstrate a difference in revision rates or clinical outcome scores when comparing a lateral or a medial approach with lateral UKA at intermediate term follow-up. A lateral approach did have greater postoperative flexion, but its clinical significance remains undetermined. PMID- 29033154 TI - The Use of Porous Tantalum Augments for the Reconstruction of Acetabular Defect in Primary Total Hip Arthroplasty. AB - BACKGROUND: Given the lack of studies of acetabular defect reconstruction in primary total hip arthroplasty (THA) using tantalum augments, this study aims to evaluate clinical and radiographic results for treatment with tantalum augments to reconstruct acetabular defects in primary THA. METHODS: We retrospectively reviewed 19 patients (19 hips) with acetabular defects who underwent primary THA using tantalum augments, with a minimum follow-up of 2 years. Clinical, radiographic, and surgical data were retrospectively evaluated. RESULTS: Mean follow-up was 5.1 years (range 2.5-7.6). Harris Hip Score improved from 35.8 (range 19-56) preoperatively to 85.3 (63-98) at last follow-up (P < .01). Oxford Hip Score, University of California Los Angeles activity scale, and Short Form-12 score also improved significantly from presurgery to last follow-up. Mean operation time and blood loss were 124.7 minutes and 530 mL, respectively. Mean hip center position was 2.97 cm (range 2.35-3.58) horizontally and 2.06 cm (1.29 2.92) vertically, and mean acetabular inclination was 38.9 degrees (range 27 degrees -47 degrees ) at last follow-up. These parameters were not significantly different from those recorded immediately postoperatively (P > .05). There was no aseptic loosening, cup and augment migration, screw breakage, or presence of hip infection at last follow-up. All hips were radiographically stable. CONCLUSION: Porous tantalum augments combined with titanium shells lead to satisfactory clinical and radiographic outcomes for the reconstruction of acetabular defect in primary THA at a mean 5.1 years of follow-up. This approach confers anatomical cup placement, simple operation, and a high rate of stable fixation. PMID- 29033156 TI - Component Fracture in the Kotz Modular Femoral Tibial Reconstruction System: An Under-Reported Complication. AB - BACKGROUND: Primary bone tumors of the femur are commonly reconstructed using an endoprosthesis. Different modes of implant failure have been described, including structural failure; although uncommon, this may be an under-reported complication. The purpose of this study is to examine the rates and risk factors for implant fracture of the Kotz Modular Femoral Tibial Reconstruction system (KMFTR). METHODS: Two hundred twenty-one patients (95 women and 126 men) who underwent a KMFTR reconstruction were reviewed. Twenty-seven patients (12%) sustained a prosthetic fracture. The mean time to fracture was 7 years postoperatively. The fractured component most commonly involved the distal femur (n = 21) and a screw hole in the stem (n = 12). In patients with stem fractures (n = 21), the mean intramedullary stem diameter was 12 mm and the mean extramedullary component length was 18 cm. RESULTS: Compared to patients who did not fracture, those with a prosthetic fracture had a significantly smaller stem diameter (12 vs 14 mm, P = .001) and a significantly longer extramedullary component length (18 vs 15 cm, P = .04). There was no difference between the preoperative and postoperative Toronto Extremity Salvage Scores (P = .98), Musculoskeletal Tumor Society 87 (P = .78), or Musculoskeletal Tumor Society 93 (P = 1.0) ratings for patients with or without a prosthetic fracture. CONCLUSION: This study shows that fracture is an under-reported complication associated with the KMFTR stem. We identified an endoprosthetic component fracture rate of 12%. Patients with smaller stem diameter and longer resection lengths were more likely to sustain a stem fracture. Subsequent revision provides a durable means of reconstruction, with no significant loss of patient function. PMID- 29033155 TI - Does the Additional Articulation in Retrieved Bipolar Hemiarthroplasty Implants Decrease Trunnionosis Compared to Total Hip Arthroplasty? AB - BACKGROUND: Trunnionosis at the modular head-neck taper interface in metal-on polyethylene total hip arthroplasty (MoP THA) has been shown to occur, and represents a potential mode of MoP THA failure. The purpose of the present investigation is to elucidate differences in fretting and corrosion at the head neck taper interface of prostheses retrieved from bipolar hemiarthroplasty (BH) and MoP THA. METHODS: A retrieval analysis of BH and MoP THA prostheses featuring a single taper design from a single manufacturer and in vivo for a minimum 2 years was performed. Fifteen femoral heads of 28-mm diameter and corresponding femoral stems retrieved from BH were compared with MoP THA implants matched based on time in vivo and head length (28 mm, -3 mm to 28 mm, +8 mm). Fretting and corrosion damage scoring was completed under stereomicroscopic visualization. RESULTS: Femoral head bore tapers retrieved from BH exhibited decreased overall fretting (P = .02), when compared to those retrieved from MoP THA. Total corrosion scores for all retrieved implants were positively correlated with implantation time (rho = 0.54, P < .02). CONCLUSION: Femoral heads retrieved from BH exhibit decreased fretting damage compared to those retrieved from MoP THA. The added articulation in BH implants may decrease torque produced at the head neck taper junction, thereby decreasing fretting. Increased fretting damage in implants from MoP THA is not associated with increased corrosion in 28-mm heads of this taper design. The longer a BH or MoP THA prosthesis is implanted, the greater the risk of damage due to corrosion. PMID- 29033157 TI - Midterm Survivorship After Revision Total Hip Arthroplasty With a Custom Triflange Acetabular Component. AB - BACKGROUND: Custom triflange acetabular components are being increasingly used for the reconstruction of Paprosky type IIIB acetabular defects. However, midterm survivorship data are lacking. METHODS: We queried the prospective registries at 2 high-volume revision centers for patients who had undergone revision total hip arthroplasty using a custom triflange component between 2000 and 2011. We identified 73 patients with minimum 5-year follow-up. These patients' records were reviewed to determine incidence of revision or reoperation, clinical performance, and radiographic stability. The mean follow-up was 7.5 years (range 5-12 years). RESULTS: Fifteen of 73 triflange components (20.5%) were indicated for revision during the follow-up period, including 6 for instability (8%) and 8 for infection (11%). Twelve of 73 patients (16%) underwent reoperation for reasons other than failure of the triflange component. The median hip disability and osteoarthritis outcome score for joint replacement score at midterm follow-up was 85 (interquartile range 73-100). Only 1 of 73 implants was determined to be radiographically loose at midterm follow-up. CONCLUSION: Custom triflange reconstruction for severe acetabular deficiency is a viable option; however, complications are common and significant challenges remain for those that fail. PMID- 29033158 TI - Revision Total Knee Arthroplasty for Periprosthetic Joint Infection Is Associated With Increased Postoperative Morbidity and Mortality Relative to Noninfectious Revisions. AB - BACKGROUND: Periprosthetic joint infection (PJI) after primary total knee arthroplasty (TKA) is a devastating complication. The short-term morbidity profile of revision TKA performed for PJI relative to non-PJI revisions is poorly characterized. The purpose of this study is to determine 30-day postoperative outcomes after revision TKA for PJI, relative to primary TKA and aseptic revision TKA. METHODS: The American College of Surgeons National Surgical Quality Improvement Program from 2005 to 2015 was queried for primary and revision TKA cases. Revision TKA cases were categorized into PJI and non-PJI cohorts. Differences in 30-day outcomes including postoperative complications, readmissions, operative time, and length of stay were compared using bivariate and multivariate analyses. RESULTS: In total, 175,761 TKAs were included in this study, with 162,981 (92.7%) primary TKAs and 12,780 (7.3%) revision TKAs, of which 2196 (17.2%) revisions were performed for PJI. When compared to aseptic revision TKA, multivariate analysis demonstrated that PJI revisions had a significantly higher risk of major early postoperative complications including death (adjusted odds ratio [OR] 3.25) and sepsis (OR 8.73). In addition, nonhome discharge (OR 1.75), readmissions (OR 1.67), and length of stay (+2.1 days) were all greater relative to non-PJI revisions. CONCLUSION: Utilizing a large, prospectively collected, national database, we found that revision TKA for PJI has a greater risk of short-term morbidity and mortality and requires a higher utilization of healthcare resources. These results have implications for patient counseling and alternative payment models that may eventually include revision TKA. PMID- 29033159 TI - Assessing Acute Kidney Injury After First-Stage Joint Revision for Infection. PMID- 29033160 TI - Transgender Youth Fertility Attitudes Questionnaire: Measure Development in Nonautistic and Autistic Transgender Youth and Their Parents. AB - PURPOSE: The objective of this study was to assess transgender youth and parent attitudes regarding (1) the potential impact of gender-affirming hormone therapy on fertility and (2) fertility preservation (FP) options. METHODS: The Transgender Youth Fertility Attitudes Questionnaire was developed through a multistage participatory process with gender specialists and key stakeholders (transgender youth and their parents, N = 35). As up to 25% of youth gender referrals have co-occurring autism, measure development included a well characterized supplementary sample of autistic transgender youth to maximize the applicability of the questionnaire. Following its development and refinement, the Transgender Youth Fertility Attitudes Questionnaire was pilot tested with transgender youth (nonautistic and autistic) and their parents (N = 51). RESULTS: The participatory process produced parallel child and parent questionnaires addressing fertility and FP knowledge and attitudes. In the pilot trial, youth and parents expressed generally similar attitudes about fertility and FP. Most youth (92%) reported learning about gender-affirming hormone therapy-related fertility issues online. Although many transgender youth endorsed a wish to parent children at some point, few (24%) expressed desire to have their own biological child. However, many youth wondered, or did not know, if their feelings about having a biological child might change in the future. CONCLUSIONS: This study presents a novel procedure for developing instruments for use with transgender youth. Although a majority of transgender youth in this study were uninterested in using FP, extending exploration of this topic with young people may be useful given findings of their openness to the idea that fertility attitudes may change in adulthood. PMID- 29033161 TI - Impact of a socio-educational intervention to improve the quality of life of patients with fibromyalgia: A quasi-experimental design. AB - OBJECTIVE: To evaluate the impact of a socio-educational intervention to improve the quality of life of patients with fibromyalgia. METHOD: Out of 132 eligible candidates, 128 patients participated with a diagnosis of fibromyalgia (ACR 1990/2010), over 18 years of age, who did not have cognitive problems or mental disorders in acute phase and lived in the catchment area of the participating CAPs. The patients underwent intervention for 5 weeks to strengthen self management of pain and improve quality of life. Socio-demographic variables, satisfaction and quality of life (SF-36) were studied. Pre-post measurements were made on the 128 participants and follow-up at 2 months on 120 (8 did not agree to be contacted). RESULTS: Comparing the pre-post-intervention scores (non parametric Wilcoxon test), it was found that 71.09% reported a higher perception of quality of life in the Mental health domain and lower percentage of improvement (28.91%) in the Physical role domain. When comparing pre-post-follow up scores (Friedman's test), mean perception improved in all domains and remained at 2-month follow-up (P<.001). Finally, the average satisfaction with the intervention received was 90.55% (SD 9.86; min. 41, max. 100). CONCLUSIONS: When assessing the impact of the intervention, there was an improvement in the post and follow-up scores. This finding is largely due to the fact that the intervention strengthens the patient's self-mastery of their abilities to control pain and improve their perception of quality of life. PMID- 29033162 TI - Moving towards a nursing model to understand bereavement and loss. PMID- 29033163 TI - The first Italian heart transplantation: The history of the pioneers' experience. PMID- 29033164 TI - UK Consensus on Normal Tissue Dose Constraints for Stereotactic Radiotherapy. AB - Six UK studies investigating stereotactic ablative radiotherapy (SABR) are currently open. Many of these involve the treatment of oligometastatic disease at different locations in the body. Members of all the trial management groups collaborated to generate a consensus document on appropriate organ at risk dose constraints. Values from existing but older reviews were updated using data from current studies. It is hoped that this unified approach will facilitate standardised implementation of SABR across the UK and will allow meaningful toxicity comparisons between SABR studies and internationally. PMID- 29033166 TI - Early peripheral endothelial dysfunction predicts myocardial infarct extension and microvascular obstruction in patients with ST-elevation myocardial infarction. AB - INTRODUCTION AND OBJECTIVES: The role of endothelial dysfunction (ED) in patients with ST-elevation myocardial infarction (STEMI) is poorly understood. Peripheral arterial tonometry (PAT) allows non-invasive evaluation of ED, but has never been used for this purpose early after primary percutaneous coronary intervention (P PCI). Our purpose was to analyze the relation between ED assessed by PAT and both the presence of microvascular obstruction (MVO) and infarct extension in STEMI patients. METHODS: ED was assessed by the reactive hyperemia index (RHI), measured by PAT and defined as RHI <1.67. Infarct extension was assessed by troponin I (TnI) release and contrast-enhanced cardiac magnetic resonance (ceCMR). MVO was assessed by ceCMR and by indirect angiographic and ECG indicators. An echocardiogram was also performed in the first 12 h. RESULTS: We included 38 patients (mean age 60.0+/-13.7 years, 29 male). Mean RHI was 1.87+/ 0.60 and 16 patients (42.1%) had ED. Peak TnI (median 118 mg/dl, IQR 186 vs. 67/81, p=0.024) and AUC of TnI (median 2305, IQR 2486 vs. 1076/1042, p=0.012) were significantly higher in patients with ED, who also showed a trend for more transmural infarcts (63.6% vs. 22.2%, p=0.06) and larger infarct mass on ceCMR (median 17.5%, IQR 15.4 vs. 10.1/10.3, p=0.08). Left ventricular ejection fraction (LVEF) was lower and wall motion score index (WMSI) was higher on both echocardiogram and ceCMR in patients with ED. On ceCMR, MVO was more frequent in patients with RHI <1.67 (54.5% vs. 11.1%, p=0.03). ECG and angiographic indicators of MVO all showed a trend toward worse results in these patients. CONCLUSIONS: The presence of ED assessed by PAT 24 h after P-PCI in patients with STEMI is associated with larger infarcts, lower LVEF, higher WMSI and higher prevalence of MVO. PMID- 29033165 TI - Molecular epidemiological study of familial amyotrophic lateral sclerosis in Japanese population by whole-exome sequencing and identification of novel HNRNPA1 mutation. AB - To elucidate the genetic epidemiology of familial amyotrophic lateral sclerosis (FALS) in the Japanese population, we conducted whole-exome sequencing analysis of 30 FALS families in whom causative mutations have not been identified in previous studies. Consequently, whole-exome sequencing analysis revealed novel mutations in HNRNPA1, TBK1, and VCP. Taken together with our previous results of mutational analyses by direct nucleotide sequencing analysis, a microarray-based resequencing method, or repeat-primed PCR analysis, causative mutations were identified in 41 of the 68 families (60.3%) with SOD1 being the most frequent cause of FALS (39.7%). Of the mutations identified in this study, a novel c.862/1018C>G (p.P288A/340A) mutation in HNRNPA1 located in the nuclear localization signal domain of hnRNPA1, enhances the recruitment of mutant hnRNPA1 into stress granules, indicating that an altered nuclear localization signal activity plays an essential role in amyotrophic lateral sclerosis pathogenesis. PMID- 29033167 TI - Spatial variability in the concentrations of metals in beached microplastics. AB - Heavy metals and microplastics have been considered as threats to the marine environment and the interactions between these two pollutants are poorly understood. This study investigates the interactions between metals adsorbed in pellets collected randomly from 19 beaches along the coast of Sao Paulo State in southeastern Brazil, comparing these levels with those in virgin pellets. The samples were analyzed for Al, Cr, Cu, Fe, Mn, Sn, Ti and Zn by inductively coupled plasma optical emission spectroscopy (ICP-OES). The polymers were solubilized via acid digestion. The highest levels occurred with Fe (227.78mgkg-1 - Itaguare) and Al (45.27mgkg-1 - Guarau) in the same areas, which are closer to the Port of Santos. The metal adsorption on pellets collected is greater than that on virgin pellets. In this context, pellets can be considered to be a carrier for the transport of metals in the environment, even in small quantities. PMID- 29033168 TI - Rocky shoreline protocols miss microplastics in marine debris surveys (Fogo Island, Newfoundland and Labrador). AB - Most anthropogenic marine debris shoreline studies are conducted on sandy shores, rather than rocky coastlines. We amended a standardized protocol for monitoring marine debris on a high-loading beach composed of small rocks and cobbles in Newfoundland, Canada. Our protocol had two parts: we conducted stratified sampling to a depth of ~20cm below the surface of the rocks (standing survey), and surveyed accumulation of items on the surface of rocks every other day (loading survey). We found the vast majority of smaller items were below the surface. Only 17.2% of debris were microplastics (<5mm). Types of anthropogenic debris differed significantly between the standing survey and the loading survey. We found no relationship between either wind direction or wind speed, and distributions of debris. This study allows for a better understanding of marine debris detection along rocky coasts, and the limitations of protocols for studying them. PMID- 29033169 TI - Influence of the submarine volcanic eruption off El Hierro (Canary Islands) on the mesopelagic cephalopod's metal content. AB - This work investigates whether a submarine volcanic eruption off El Hierro (Canary Islands) in October 2011 influenced the metal contents of two deep water cephalopod species: Abraliopsis morisii and Pyroteuthis margaritifera. This was assessed by comparing metal contents in specimens collected off the island of El Hierro and in the neighbouring islands of La Palma and Tenerife during an experimental deep water fishing trip. The concentration of 20 heavy metals was analyzed in 180 specimens of A. morisii and P. margaritifera collected around the three islands to test for inter-island differences for each species and metal. While both species showed geographical differences in metal concentrations, the main finding was that A. morisii could be a bioindicator species for metals such as Li, Sr and Ca. PMID- 29033170 TI - Assessing the effect of mercury pollution on cultured benthic foraminifera community using morphological and eDNA metabarcoding approaches. AB - Mercury (Hg) is a highly toxic element for living organisms and is known to bioaccumulate and biomagnify. Here, we analyze the response of benthic foraminifera communities cultured in mesocosm and exposed to different concentrations of Hg. Standard morphological analyses and environmental DNA metabarcoding show evidence that Hg pollution has detrimental effects on benthic foraminifera. The molecular analysis provides a more complete view of foraminiferal communities including the soft-walled single-chambered monothalamiids and small-sized hard-shelled rotaliids and textulariids than the morphological one. Among these taxa that are typically overlooked in morphological studies we found potential bioindicators of Hg pollution. The mesocosm approach proves to be an effective method to study benthic foraminiferal responses to various types and concentrations of pollutants over time. This study further supports foraminiferal metabarcoding as a complementary and/or alternative method to standard biomonitoring program based on the morphological identification of species communities. PMID- 29033171 TI - PAH, PCB, TPH and mercury in surface sediments of the Delaware River Estuary and Delmarva Peninsula, USA. AB - Surface sediment concentrations of polycyclic aromatic hydrocarbons (PAH) and polychlorinated biphenyls (PCB), total petroleum hydrocarbons (TPH) and mercury, were compared from two areas with contrasting land use history, the industrial Delaware Estuary and the rural Delmarva Peninsula (USA). TPH in the Delaware (38 616mg/kg) and saturate/aromatic fractions suggested petroleum/industrial sources compared to biogenic sources in the Delmarva coastal control (<34-159mg/kg). Within the Delaware the ?PAH18 ranged from 3749 to 22,324MUg/kg with isomeric ratios indicative of petroleum combustion source/s, conversely, those in the Delmarva (5-2139MUg/kg) also yielded relatively higher perylene that were consistent with natural background levels derived from vegetation/coal combustion source/s. ?PCB(tri-hepta) concentrations in the Delmarva (0.6-6.5MUg/kg) were less than the threshold effect concentration (TEC), whereas the Delaware had received much higher PCB loading (18.1-136.8MUg/kg) as evidenced by a significantly higher amounts in some samples (>TEC). PMID- 29033172 TI - Environmental characterization of a semiarid hyper saline system based on dissolved trace metal-macronutrient synergy: A multivariate spatio-temporal approach. AB - Trace metals and macronutrients play key roles in marine biogeochemical processes. Despite their higher availability, no reliable information is available on their ecological role in the hypersaline waters of NW Arabian Gulf. The present study identifies their synergistic effect on environmental characteristics and autotrophic biomass in the shallow coastal and offshore waters, off Kuwait on a seasonal basis. Surface water samples collected along four predefined transects were analyzed for physico-chemical and biological variables during summer (n=27) and winter (n=27) seasons. Multivariate analyses revealed clear spatial and seasonal trends, and identified the best suit of environmental variables responsible for the seasonal variability in phytoplankton biomass. Using statistically derived supply to demand ratios, carbon-trace metal stoichiometry, and bioavailability of trace metals, we propose possible growth regulating factors for phytoplankton on a seasonal basis in the NW Arabian Gulf, off Kuwait. This is the first report on trace metals from the entire Arabian Gulf, using clean techniques and multivariate statistical approach. PMID- 29033174 TI - Airborne particle-bound brominated flame retardants: Levels, size distribution and indoor-outdoor exchange. AB - The quality of indoor environments has a significant impact on public health. Usually, an indoor environment is treated as a static box, in which physicochemical reactions of indoor air contaminants are negligible. This results in conservative estimates for primary indoor air pollutant concentrations, while also ignoring secondary pollutants. Thus, understanding the relationship between indoor and outdoor particles and particle-bound pollutants is of great significance. For this reason, we collected simultaneous indoor and outdoor measurements of the size distribution of airborne brominated flame retardant (BFR) congeners. The time-dependent concentrations of indoor particles and particle-bound BFRs were then estimated with the mass balance model, accounting for the outdoor concentration, indoor source strength, infiltration, penetration, deposition and indoor resuspension. Based on qualitative observation, the size distributions of SigmaPBDE and SigmaHBCD were characterized by bimodal peaks. According to our results, particle-bound BDE209 and gamma-HBCD underwent degradation. Regardless of the surface adsorption capability of particles and the physicochemical properties of the target compounds, the concentration of BFRs in particles of different size fractions seemed to be governed by the particle distribution. Based on our estimations, for airborne particles and particle-bound BFRs, a window-open ventilated room only takes a quarter of the time to reach an equilibrium between the concentration of pollutants inside and outside compared to a closed room. Unfortunately, indoor pollutants and outdoor pollutants always exist simultaneously, which poses a window-open-or-closed dilemma to achieve proper ventilation. PMID- 29033173 TI - Source apportionment for fine particulate matter in a Chinese city using an improved gas-constrained method and comparison with multiple receptor models. AB - PM2.5 is one of the most studied atmospheric pollutants due to its adverse impacts on human health and welfare and the environment. An improved model (the chemical mass balance gas constraint-Iteration: CMBGC-Iteration) is proposed and applied to identify source categories and estimate source contributions of PM2.5. The CMBGC-Iteration model uses the ratio of gases to PM as constraints and considers the uncertainties of source profiles and receptor datasets, which is crucial information for source apportionment. To apply this model, samples of PM2.5 were collected at Tianjin, a megacity in northern China. The ambient PM2.5 dataset, source information, and gas-to-particle ratios (such as SO2/PM2.5, CO/PM2.5, and NOx/PM2.5 ratios) were introduced into the CMBGC-Iteration to identify the potential sources and their contributions. Six source categories were identified by this model and the order based on their contributions to PM2.5 was as follows: secondary sources (30%), crustal dust (25%), vehicle exhaust (16%), coal combustion (13%), SOC (7.6%), and cement dust (0.40%). In addition, the same dataset was also calculated by other receptor models (CMB, CMB Iteration, CMB-GC, PMF, WALSPMF, and NCAPCA), and the results obtained were compared. Ensemble-average source impacts were calculated based on the seven source apportionment results: contributions of secondary sources (28%), crustal dust (20%), coal combustion (18%), vehicle exhaust (17%), SOC (11%), and cement dust (1.3%). The similar results of CMBGC-Iteration and ensemble method indicated that CMBGC-Iteration can produce relatively appropriate results. PMID- 29033175 TI - Projecting temperature-related years of life lost under different climate change scenarios in one temperate megacity, China. AB - Temperature has been associated with population health, but few studies have projected the future temperature-related years of life lost attributable to climate change. To project future temperature-related disease burden in Tianjin, we selected years of life lost (YLL) as the dependent variable to explore YLL attributable to climate change. A generalized linear model (GLM) and distributed lag non-linear model were combined to assess the non-linear and delayed effects of temperature on the YLL of non-accidental mortality. Then, we calculated the YLL changes attributable to future climate scenarios in 2055 and 2090. The relationships of daily mean temperature with the YLL of non-accident mortality were basically U-shaped. Both the daily mean temperature increase on high temperature days and its drop on low-temperature days caused an increase of YLL and non-accidental deaths. The temperature-related YLL will worsen if future climate change exceeds 2 degrees C. In addition, the adverse effects of extreme temperature on YLL occurred more quickly than that of the overall temperature. The impact of low temperature was greater than that of high temperature. Men were vulnerable to high temperature compared with women. This analysis highlights that the government should formulate environmental policies to reach the Paris Agreement goal. PMID- 29033176 TI - Estimating spatiotemporal distribution of PM1 concentrations in China with satellite remote sensing, meteorology, and land use information. AB - BACKGROUND: PM1 might be more hazardous than PM2.5 (particulate matter with an aerodynamic diameter <= 1 MUm and <=2.5 MUm, respectively). However, studies on PM1 concentrations and its health effects are limited due to a lack of PM1 monitoring data. OBJECTIVES: To estimate spatial and temporal variations of PM1 concentrations in China during 2005-2014 using satellite remote sensing, meteorology, and land use information. METHODS: Two types of Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 6 aerosol optical depth (AOD) data, Dark Target (DT) and Deep Blue (DB), were combined. Generalised additive model (GAM) was developed to link ground-monitored PM1 data with AOD data and other spatial and temporal predictors (e.g., urban cover, forest cover and calendar month). A 10-fold cross-validation was performed to assess the predictive ability. RESULTS: The results of 10-fold cross-validation showed R2 and Root Mean Squared Error (RMSE) for monthly prediction were 71% and 13.0 MUg/m3, respectively. For seasonal prediction, the R2 and RMSE were 77% and 11.4 MUg/m3, respectively. The predicted annual mean concentration of PM1 across China was 26.9 MUg/m3. The PM1 level was highest in winter while lowest in summer. Generally, the PM1 levels in entire China did not substantially change during the past decade. Regarding local heavy polluted regions, PM1 levels increased substantially in the South-Western Hebei and Beijing-Tianjin region. CONCLUSIONS: GAM with satellite-retrieved AOD, meteorology, and land use information has high predictive ability to estimate ground-level PM1. Ambient PM1 reached high levels in China during the past decade. The estimated results can be applied to evaluate the health effects of PM1. PMID- 29033177 TI - Arsenic-phosphorus interactions in the soil-plant-microbe system: Dynamics of uptake, suppression and toxicity to plants. AB - High arsenic (As) concentrations in the soil, water and plant systems can pose a direct health risk to humans and ecosystems. Phosphate (Pi) ions strongly influence As availability in soil, its uptake and toxicity to plants. Better understanding of As(V)-Pi interactions in soils and plants will facilitate a potential remediation strategy for As contaminated soils, reducing As uptake by crop plants and toxicity to human populations via manipulation of soil Pi content. However, the As(V)-Pi interactions in soil-plant systems are complex, leading to contradictory findings among different studies. Therefore, this review investigates the role of soil type, soil properties, minerals, Pi levels in soil and plant, Pi transporters, mycorrhizal association and microbial activities on As-Pi interactions in soils and hydroponics, and uptake by plants, elucidate the key mechanisms, identify key knowledge gaps and recommend new research directions. Although Pi suppresses As uptake by plants in hydroponic systems, in soils it could either increase or decrease As availability and toxicity to plants depending on the soil types, properties and charge characteristics. In soil, As(V) availability is typically increased by the addition of Pi. At the root surface, the Pi transport system has high affinity for Pi over As(V). However, Pi concentration in plant influences the As transport from roots to shoots. Mycorrhizal association may reduce As uptake via a physiological shift to the mycorrhizal uptake pathway, which has a greater affinity for Pi over As(V) than the root epidermal uptake pathway. PMID- 29033178 TI - Predictors of thallium exposure and its relation with preterm birth. AB - Thallium (Tl) is a well-recognized hazardous toxic heavy metal that has been reported to have embryotoxicity and fetotoxicity. However, little is known about its association with preterm birth (PTB) in humans. We aimed to evaluate the predictors of Tl exposure and assessed its relation with PTB. The study population included 7173 mother-infant pairs from a birth cohort in Wuhan, China. Predictors of Tl concentrations were explored using linear regression analyses, and associations of Tl exposure with risk of PTB or gestational age at birth were estimated using logistic regression or generalized linear models. The geometric mean and median values of urinary Tl concentrations were 0.28 MUg/L (0.55 MUg/g creatinine) and 0.29 MUg/L (0.53 MUg/g creatinine). We found that maternal urinary Tl concentrations varied by gestational weight gain, educational attainment, multivitamin and iron supplementations. Women with Tl concentrations higher than 0.80 MUg/g creatinine were at higher risk of giving birth prematurely versus those with Tl concentrations lower than 0.36 MUg/g creatinine [adjusted odds ratio (95% confidence interval (CI)): 1.55 (1.05, 2.27)], and the association was more pronounced in PTB with premature rupture of membranes (PROM) rather than in PTB without PROM. About 3-fold increase in creatinine-corrected Tl concentrations were associated with 0.99-day decrease in gestational length (95% CI: -1.36, -0.63). This is the first report on the associations between maternal Tl exposure and the risk of PTB. PMID- 29033179 TI - Editorial Commentary: The optimistic future of remote hemodynamic monitoring. PMID- 29033180 TI - Advanced Thoracoscopy: What Is the Critical Information in Case Reports and How Do We Achieve the Next Level? PMID- 29033181 TI - Pathobiology of HER 2 positive small invasive (T1a,b) breast cancer: "A wolf in sheep's clothing". AB - Small invasive breast cancers (cancers with maximum diameter <1cm, T1a,b) become more prevalent form of breast cancer as a result of the introduction of breast cancer mammographic screening programs. Although associated with an excellent prognosis, T1a,b breast cancers are heterogeneous group of tumors with prognostically unfavorable subset of cases, primarily those with axillary lymph node metastases. To determine if the HER2 overexpression is associated with the prognostically unfavorable traditional clinicopathological features in this group of breast cancers, clinicopathological features (age, tumor size, histological type, histological grade, nodal status, hormone receptor status, proliferation index, lymphovascular invasion, ploidy) of 38 HER2 positive T1a,b cancers were compared with those of the control group consisting of 315 HER2 negative T1a,b cancers. The comparison of clinicopathological features was made using chi2 and t test. HER2 positive T1a,b breast cancers were significantly associated with higher tumor grades (p<0.001), negative hormone receptors (p=0.008), presence of lymphovascular invasion (p=0.025), high proliferation index (p<0.001), and abnormal DNA content (p=0.04). We also noticed the higher frequency of lymph node positive cases in the HER2 positive group of cancers (p=0.05). There were no differences in age, tumor size and histological type between investigated groups. Our group of HER2 positive T1a,b breast cancers was associated with many unfavorable traditional prognostic factors, demonstrating that this subtype of early breast cancer has an aggressive biological phenotype which may have potential benefit from adjuvant chemo and immunotherapy. PMID- 29033182 TI - PD-L1 expression in HNPCC-associated colorectal cancer. AB - BACKGROUND: PD-L1 immunohistochemistry is predictive for molecular inhibitors of PD-1/PD-L1 immune checkpoint. Therefore, this study evaluated the PD-L1 expression in patients with Hereditary Non-Polyposis Colorectal Cancer (HNPCC). METHODS: Immunohistochemical expression of PD-L1 in carcinoma cells, stromal macrophages and lymphocytes of 40 HNPCC-patients with colorectal cancer was scored semi-quantitatively. RESULTS: Focal (2 cases) to extensive (2 cases) PD-L1 immunopositivity of carcinoma cells was detected in 4 out of 40 cases (10.0%). Stromal macrophages were immunopositive in 28 out of 40 cases (70.0%). Lymphocytes showed PD-L1 expression in 3 out of 40 cases (7.5%). Simultaneous immunopositivity of stromal macrophages and tumor cells was detected in two MLH1/PMS2-deficient and two MSH2/MSH6-deficient cases. CONCLUSION: A subset of HNPCC-associated colorectal cancers in this study clearly showed PD-L1 expression of tumor epithelia and immune cells, therefore, the detection of PD-L1 status is useful. PMID- 29033183 TI - The overexpression and predictive significance of MMP-12 in esophageal squamous cell carcinoma. AB - Matrix metalloproteinase (MMP)-mediated degradation of the extracellular matrix is a major factor for tumor invasion and metastasis. MMP-12, as metalloelastase, its function in tumor progression remains contradictory. This study was undertaken to investigate the role of MMP-12 in esophageal squamous cell carcinoma (ESCC). We analyzed the protein expression of MMP-12 and its association with clinicopatholigical parameters, as well as survival analysis. MMP-12 was highly expressed in tumor cells comparing with normal epithelial cells. The high expression of MMP-12 was significantly correlated with tumor grade and stage, nodal metastasis and poor survival of ESCC. Cox multivariate analysis revealed that MMP-12 was an independent prognostic factor in ESCC. Our results suggest that MMP-12 might act as a potential target for the development of novel therapeutics of esophageal squamous cell carcinoma. PMID- 29033184 TI - Over expression of HIF1alpha is associated with inactivation of both LimD1 and VHL in renal cell carcinoma: Clinical importance. AB - It is evident that the association of LimD1 and VHL could regulate stabilization of HIF1alpha protein. In this study, the expression of LimD1, VHL and HIF1alpha was analyzed in primary renal cell carcinoma (RCC) samples to understand their association with development of the disease. For this purpose, immunohistochemical expression analysis of LimD1, VHL and HIF1alpha was performed along with proliferation marker PCNA in 32 primary RCC samples in different subtypes at different clinical stages of Indian patients (year: 2014-2016). Significant decrease (P<0.05) in LimD1 and VHL expression was observed in different subtypes of RCC and in early invasive lesions. High nuclear expression of HIF1alpha was seen in different subtypes as well as in early invasive lesions. The LimD1 and VHL expression strongly correlated with each other, while inversely correlated with HIF1alpha. On the other hand, increased expression of PCNA was seen in different sub types and in early invasive lesions. The PCNA expression was negatively correlated with LimD1 and VHL expression and positively correlated with HIF1alpha. Thus, our data indicates that the reduced expression of LimD1 and VHL might have synergistic effect on induction of HIF1alpha resulting increased cellular proliferation and progression of the disease. PMID- 29033185 TI - The expression level of miR-203 in patients with gastric cancer and its clinical significance. AB - BACKGROUND: The clinical significance of miR-203 and its prognostic value have not been investigated in gastric cancer. METHODS: We assessed miR-203 expression in 141 gastric cancer samples and 141 paired non-cancerous samples by real-time PCR and calculated using the 2-DeltaDeltaCt method. Differences between groups were examined for statistical significance by Student's t-test. Survival curves were computed by the Kaplan-Meier method, and differences between survival curves were compared by the log rank test. RESULTS: The expression of miR-203 was significantly lower in gastric cancer samples compared to non-cancerous samples (P<0.0001). Low miR-203 expression was found to be closely correlated with advanced stage (p=0.005), and lymph node involvement (p=0.009). Kaplan-Meier analysis with the log-rank test indicated that low miR-203 expression had a significant impact on overall survival (39.4% vs. 62.5%; P=0.043) and progression free survival (32.5% vs. 58.6%; P=0.023). Furthermore, multivariate analysis revealed that miR-203 expression level was independent prognostic factors for overall survival (HR=2.73, 95% CI: 1.69-8.91; P=0.01), as well as progression free survival (HR=4.19, 95% CI: 2.91-10.12; P=0.005). CONCLUSION: Our data validate an important clinical significance of miR-203 in gastric cancer, and reveal that it might be a potential prognostic factor for gastric cancer. Large- scale and long-term follow-up studies are needed to confirm the significance of miR-203 in gastric cancer. PMID- 29033186 TI - A preliminary study on fetal lung injury in a rat model of acute pancreatitis in pregnancy. AB - Acute pancreatitis in pregnancy (APIP), which was thought to be rare, is becoming more frequent. In addition, high perinatal mortality among fetuses has been reported. Our research aimed to investigate and assess fetal lung injury in a rat model of APIP and its possible mechanisms. The APIP model was induced by sodium taurocholate in Sprague-Dawley rats during the third trimester. Sham-operated (SO) rats in late gestation were used as controls, and dynamic observation and detection in the SO and acute pancreatitis (AP) groups were performed at 3 time points. Histological changes in the fetal lungs, as well as the maternal pancreas and placenta were assessed. The levels of serum amylase, lipase, TNF-alpha and IL 1beta were detected in maternal rats, and the expression of surfactant proteins A, B, C and D as well as their mRNA were determined. In this study, fetal lung injury as well as maternal pancreas and placenta injuries occurred in a time dependent manner. The levels of serum amylase, lipase and TNF-alpha were markedly increased in maternal rats, and the levels of surfactant proteins A, B, C and D in fetal lungs were significantly decreased in the fetal lungs of the AP group. Ultrastructure injuries and the dysregulated synthesis and secretion of pulmonary surfactant proteins were observed in the AP group. Our research suggests that fetal lung injury is involved in the rat model of APIP and that the dysregulated synthesis and secretion of pulmonary surfactant proteins play a critical role in fetal lung injury during APIP. PMID- 29033187 TI - A TERT-CLPTM1 locus polymorphism (rs401681) is associated with EGFR mutation in non-small cell lung cancer. AB - Telomere length is associated with lung carcinogenesis, and recent studies have focused on telomere-maintaining genes and their polymorphisms. Cancer susceptibility of the rs401681 polymorphism, located in the TERT-CLPTM1L locus, has been studied in many cancers. We examined the clinicopathological and prognostic value of rs401681 variants in lung cancer. The relationship between rs401681 variants and telomere length was analyzed in 134 non-small cell lung cancers (NSCLCs). The rs401681 polymorphism had the following genotype frequencies: C/C in 52.2% of the samples, C/T in 30.6%, and T/T in 17.2%. The T allele showed a strong correlation with EGFR mutation (p=0.037). Telomeres in the tumor samples were 3.26-fold longer, on average, than telomeres in matched normal samples (SD=0.48), and there were no differences in telomere length according to rs401681 polymorphism. Smoking was associated with telomere shortening (p=0.01). Survival analysis showed no prognostic value for rs401681 polymorphisms or telomere length in NSCLC. These results suggested that the rs401681 polymorphism contributes to lung carcinogenesis only in patients harboring an EGFR mutation. However, the polymorphism was not associated with survival; therefore, further comprehensive analysis should be performed. PMID- 29033188 TI - PPP1CC is associated with astrocyte and microglia proliferation after traumatic spinal cord injury in rats. AB - Reactive astrogliosis and microgliosis after spinal cord injury (SCI) contribute to glial scar formation that impedes axonal regeneration. The mechanisms underlying reactive astrocyte and microglia proliferation upon injury remain partially understood. Protein phosphatase 1, catalytic subunit, gamma isozyme (PPP1CC) participates in cell proliferation, differentiation and apoptosis. However, the expression and functions of PPP1CC following SCI are still unknown. In this study, an acute spinal cord contusion injury model in adult rats was established to investigate the potential role of PPP1CC during the pathological process of SCI. The palpable expression increase of PPP1CC after SCI was found by western blot and immunohistochemistry staining. Double immunofluorescence staining showed that PPP1CC expression mainly increased in astrocytes and microglia, as well as PPP1CC and proliferating cell nuclear antigen (PCNA) co localized in astrocytes and microglia. Furthermore, PCNA expression also elevated after SCI in a similar manner as PPP1CC. In vitro, PPP1CC and PCNA expression in primary rat spinal cord astrocytes and microglia changed in a similar concentration- and time-dependent manner according to LPS treatment. In addition, PPP1CC knockdown in astrocytes and microglia resulted in the decrease of PCNA expression and the number of Brdu positive cells after LPS stimulation, showing that PPP1CC promoted astrocyte and microglia proliferation after inflammation. In a word, PPP1CC might be associated with astrocyte and microglia proliferation after SCI, implying that PPP1CC is a potential molecular target for the therapy of SCI. PMID- 29033189 TI - MiR-375: A prospective regulator in medullary thyroid cancer based on microarray data and bioinformatics analyses. AB - BACKGROUND: This research aims to investigate the prospective molecular mechanism of miR-375 in Medullary Thyroid Cancer (MTC). MATERIAL AND METHODS: The expression level of miR-375 in MTC was explored with microarray data from Gene Expression Omnibus (GEO). To gather the putative target genes of miR-375, we selected eligible datasets in GEO, in which antagomir-375 and premir-375 were transfected to provide the miR-375-related genes. Subsequently, we attained the intersection of the results of GEO microarray data and 12 online target genes prediction database as the prospective target genes. Furthermore, we conducted in silico analysis including gene ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways annotations and Protein-Protein Interactions (PPI) analysis to provide an overview of the function of miR-375 in MTC. Finally, data from The Cancer Genome Atlas (TCGA) and The Human Protein Atlas (THPA) were used for a validation. RESULTS: Up-regulation could be confirmed with the data from GSE40807. GEO dataset GSE67742 provided 10,596 miR 375-related genes, while 12 online prediction databases showed that 3352 target genes appeared no less than four times. Finally, the intersection of the two groups of genes included 1132 prospective targets. In aspect of functional annotation, negative regulation of transcription from RNA polymerase II promoter (P=9.83E-06), golgi membrane (P=9.98E-05) and pathway of protein binding (P=3.63E 07) were highlighted as the most enriched terms with GO analysis. With regards to PPI network, 162 hub genes that interacted with no less than 10 other different genes was visualized, among which PI3K/Akt signaling pathway was the most enriched pathway as assessed by KEGG. Furthermore, two genes (JAK2 and NGFR) in PI3K/Akt signaling pathway showed down-regulated patterns in both mRNA and protein levels. CONCLUSION: The higher expression level of miR-375 might play a pivotal role in the tumorigenesis of MTC via targeting multiple key pathways, especially PI3K/Akt pathway. However, the exact molecular mechanism of miR-375 needs to be verified with in-depth investigation in the future. PMID- 29033190 TI - 3D modelling of radical prostatectomy specimens: Developing a method to quantify tumor morphometry for prostate cancer risk prediction. AB - Prostate cancer displays a wide spectrum of clinical behaviour from biological indolence to rapidly lethal disease, but we remain unable to accurately predict an individual tumor's future clinical course at an early curable stage. Beyond basic dimensions and volume calculations, tumor morphometry is an area that has received little attention, as it requires the analysis of the prostate gland and tumor foci in three-dimensions. Previous efforts to generate three-dimensional prostate models have required specialised graphics units and focused on the spatial distribution of tumors for optimisation of biopsy strategies rather than to generate novel morphometric variables such as tumor surface area. Here, we aimed to develop a method of creating three-dimensional models of a prostate's pathological state post radical prostatectomy that allowed the derivation of surface areas and volumes of both prostate and tumors, to assess the method's accuracy to known clinical data, and to perform initial investigation into the utility of morphometric variables in prostate cancer prognostication. Serial histology slides from 21 prostatectomy specimens covering a range of tumor sizes and pathologies were digitised. Computer generated three-dimensional models of tumor and prostate space filling models were reconstructed from these scanned images using Rhinoceros 4.0 spatial reconstruction software. Analysis of three dimensional modelled prostate volume correlated only moderately with weak concordance to that from the clinical data (r=0.552, theta=0.405), but tumor volume correlated well with strong concordance (r=0.949, theta=0.876). We divided the cohort of 21 patients into those with features of aggressive tumor versus those without and found that larger tumor surface area (32.7 vs 3.4cc, p=0.008) and a lower tumor surface area to volume ratio (4.7 vs 15.4, p=0.008) were associated with aggressive tumor biology. PMID- 29033191 TI - Effect of the ultraviolet light treatment and storage methods on the biological activity of a titanium implant surface. AB - OBJECTIVE: We evaluated whether the biological activity of the surface of titanium, when stored in an aqueous solution, in low vacuum, and under ambient conditions after ultraviolet light (UV) treatment is comparable to that of the surface immediately after UV treatment for 15min and that after dielectric barrier discharge (DBD) plasma treatment for 15min. METHODS: Grade IV titanium discs with machined surfaces were irradiated with UV and their surface properties were evaluated immediately and after storage for 28days in distilled H2O (dH2O), a vacuum desiccator (31.325kPa), and a sealed container under air. Their surface characteristics were evaluated by atomic force microscopy, X-ray diffraction, contact angle analysis, and X-ray photoelectron spectroscopy. Biological activities were determined by analyzing the albumin adsorption, MC3T3-E1 cell adhesion, and cytoskeleton development. RESULTS: Hydrophilicity of titanium surfaces stored in dH2O was comparable to that immediately after UV treatment and higher than that immediately after DBD plasma treatment (P<0.001). Storage in dH2O and in low vacuum immediately after UV treatment prevented hydrocarbon contamination and maintained elevated amounts of titanium and oxygen. After 28 days, protein adsorption, cellular adhesion, and cytoskeletal development of MC3T3-E1 cells on the titanium surfaces stored in dH2O were significantly enhanced compared to those stored in low vacuum and under ambient conditions while being comparable to those immediately after UV and DBD plasma treatments. SIGNIFICANCE: UV treatment of the titanium implants followed by wet storage is useful for maintaining enhanced biological activity and overcoming biological aging during shelf storage. PMID- 29033193 TI - Cardiovascular risk assessment in elderly adults using SCORE OP model in a Latin American population: The experience from Ecuador. AB - INTRODUCTION AND OBJECTIVE: Cardiovascular disease (CVD) mortality is predicted to increase in Latin America countries due to their rapidly aging population. However, there is very little information about CVD risk assessment as a primary preventive measure in this high-risk population. MATERIAL AND METHODS: We predicted the national risk of developing CVD in Ecuadorian elderly population using the Systematic COronary Risk Evaluation in Older Persons (SCORE OP) High and Low models by risk categories/CVD risk region in 2009. Data on national cardiovascular risk factors were obtained from the Encuesta sobre Salud, Bienestar y Envejecimiento. We computed the predicted 5-year risk of CVD risk and compared the extent of agreement and reclassification in stratifying high-risk individuals between SCORE OP High and Low models. Analyses were done by risk categories, CVD risk region, and sex. RESULTS: In 2009, based on SCORE OP Low model almost 42% of elderly adults living in Ecuador were at high risk of suffering CVD over a 5-year period. The extent of agreement between SCORE OP High and Low risk prediction models was moderate (Cohen's kappa test of 0.5), 34% of individuals approximately were reclassified into different risk categories and a third of the population would benefit from a pharmacologic intervention to reduce the CVD risk. CONCLUSIONS: Forty-two percent of elderly Ecuadorians were at high risk of suffering CVD over a 5-year period, indicating an urgent need to tailor primary preventive measures for this vulnerable and high-risk population. PMID- 29033192 TI - Chemical affinity of 10-methacryloyloxydecyl dihydrogen phosphate to dental zirconia: Effects of molecular structure and solvents. AB - OBJECTIVES: To examine whether solvents and changing the molecular structure of 10-Methacryloyloxydecyl dihydrogen phosphate (10-MDP) affect its chemical affinity to Yttria-stabilized tetragonal zirconia polycrystals (Y-TZP). METHODS: The present work investigated the chemical affinity between Y-TZP and 10-MDP dissolved in different solvents (acetone/ethanol/water or mixture) using X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, and thermodynamic calculations. Shear bond strength (SBS) tests were used to evaluate the influence of different solvents on 10-MDP bonding. In addition, several phosphate ester monomer variants were created by changing the 10-MDP molecular structure. Changes included extending/shortening the spacer chain-length, and installing hydroxyl or carboxyl groups as side chains at different positions along the spacer chain. The thermodynamic parameters of the complexes formed between the 10-MDP variants and tetragonal zirconia were evaluated. RESULTS: The acquired data indicated that solvent is necessary for the formation of Zr-O-P bonds between 10-MDP and Y-TZP. Solvents affected the chemical affinity of 10-MDP to Y-TZP; acetone facilitated the best bonding, followed by ethanol. Changing the molecular structure of 10-MDP affected its chemical affinity to Y-TZP. The variants 15-MPDP, 12-MDDP, 6-hydroxyl-10-MDP and 6-carboxy-10-MDP all exhibited higher thermodynamic stability than 10-MDP when coordinated with tetragonal zirconia. In contrast, 2-MEP, 5-MPP, 10-hydroxyl-MDP, 10-carboxy-MDP, 5,6 dihydroxyl-10-MDP and 5,6-dicarboxy-10-MDP exhibited lower thermodynamic stability. SIGNIFICANCE: 10-MDP coordinates with zirconia through dissociating in solvents. Changing the molecular structure of 10-MDP theoretically affects its chemical affinity to Y-TZP. PMID- 29033194 TI - Association of -319 C/T and +49 A/G polymorphisms of CTLA-4 gene in patients with hepatitis C virus infection. AB - INTRODUCTION AND OBJECTIVE: Molecular changes in the CTLA-4 gene can modify the ability to control T lymphocyte proliferation, and promote the persistence or elimination of the hepatitis C virus (HCV). We aimed to investigate the frequency and association of -319 C/T and +49 A/G polymorphism in the CTLA-4 gene in patients infected with HCV. METHODS: The CTLA-4 gene polymorphisms (-319 C/T in the promoter region, and +49 A/G in exon 1) were analysed by T-ARMS-PCR in 420 individuals, including 205 chronic HCV infected patients and 215 healthy subjects. RESULTS: We found a positive association of +49G allele with HCV infection (OR 1.48; 95% CI 1.09-2.02; p=.02), and with males (OR 1.80; 95% CI 1.16-2.79; p=.02), both in chronic disease (without cirrhosis). Also, significant differences in +49 A/G genotypes distribution between HCV infected patients and healthy subjects were shown in a dominant genetic model (GG+GA versus AA; OR 1.57; 95% CI 1.05-2.33; p=.04). No significant differences were observed in the 319 C/T polymorphism between HCV infected patients and healthy subjects. Moreover, -319C/+49G haplotype confers susceptibility to HCV genotype 3 infection (OR 10.68; 95% CI 1.17-96.97; p=.04). CONCLUSIONS: The +49G allele confers susceptibility to HCV infection and with male gender, both in chronic disease. In addition, the -319C/+49G haplotype confers susceptibility to HCV genotype 3 infection. Our results support an important role of the -319 C/T and +49 A/G polymorphisms in HCV infection. PMID- 29033196 TI - First-line obinutuzumab for follicular lymphoma. PMID- 29033195 TI - National Surgical Quality Improvement Program surgical risk calculator poorly predicts complications in patients undergoing radical cystectomy with urinary diversion. AB - PURPOSE: To evaluate the accuracy of the American College of Surgeons National Surgical Quality Improvement Programs (ACS-NSQIP) surgical risk calculator in patients undergoing radical cystectomy (RC) with urinary diversion. MATERIALS AND METHODS: Preoperative characteristics of patients who underwent RC with ileal conduit or orthotropic neobladder (ONB) between 2007 and 2016 were entered into the proprietary online ACS-NSQIP calculator to generate 30-day predicted risk profiles. Predicted and observed outcomes were compared by measuring Brier score (BS) and area under the receiver operating characteristic curve (AUC). RESULTS: Of 954 patients undergoing RC, 609 (64%) received ileal conduit and 345 (36%) received ONB. The calculator underestimated most risks by 10%-81%. The BSs exceeded the acceptable threshold of 0.01 and AUC were less than 0.8 for all outcomes in the overall cohort. The mean (standard deviation) predicted vs. observed length of stay was 9 (1.5) vs. 10.6 (7.4) days (Pearson's r = 0.09). Among patients who received ONB, adequate BS (<0.01) was observed for pneumonia, cardiac complications, and death. The receiver operating characteristic curve analysis revealed moderate accuracy of calculator for cardiac complications (AUC = 0.69) and discharge to rehab center (AUC = 0.75) among patients who underwent RC with ONB. CONCLUSIONS: The universal ACS-NSQIP calculator poorly predicts most postoperative complications among patients undergoing RC with urinary diversion. A procedure-specific risk calculator is required to better counsel patients in the preoperative setting and generate realistic quality measures. PMID- 29033197 TI - Oncolytic virus therapy in advanced melanoma. PMID- 29033198 TI - Copanlisib in heavily pretreated indolent lymphoma. PMID- 29033199 TI - Biomechanical characteristics of subscapularis-sparing approach for anatomic total shoulder arthroplasty. AB - BACKGROUND: A technique for retaining the superior 50% of the subscapularis insertion for anatomic total shoulder arthroplasty has been described. This cadaveric study biomechanically evaluates this subscapularis-sparing approach and compares it with a complete subscapularis release and repair technique to determine whether there is a higher load to failure. MATERIALS AND METHODS: Twelve matched pairs of human cadaveric arms were distributed into 3 test groups. Group 1 consisted of specimens with and without a 100% subscapularis release. Group 2 consisted of specimens with and without an inferior 50% subscapularis release. Group 3 consisted of specimens with either an inferior 50% or 100% release of the subscapularis footprint and repair. All tendon repairs were performed using bone tunnels and sutures. Specimens were biomechanically tested using non-destructive cyclic and tensile failure-inducing loads. RESULTS: In matched pairs, the following comparative results were obtained: native intact subscapularis specimens exhibited a load to failure of 1341.20 +/- 380.10 N compared with 380.10 +/- 138.79 N in the 100% release specimens (P = .029), native intact subscapularis specimens exhibited a load to failure of 1209.74 +/- 342.18 N compared with 744.33 +/- 211.77 N in the 50% release specimens (P = .057), and 50% release and repair specimens exhibited a load to failure of 704.62 +/- 165.53 N compared with 305.52 +/- 91.39 N in the 100% release and repair group (P = .029). CONCLUSION: Preservation of the superior 50% of the subscapularis demonstrates a higher load to failure compared with complete subscapularis release and repair using bone tunnels. PMID- 29033200 TI - Validation of a Spanish version of the EuroPrevall Food Allergy Quality of Life Questionnaire-Parental Form. AB - BACKGROUND: Food allergy can have a major impact on quality of life of children and their parents. Questionnaires have been developed to measure the impact of this disorder. We aimed to validate the EuroPrevall questionnaire on Food Allergy Quality of Life Questionnaire, Parent Form (FAQLQ-PF) and the Food Allergy Independent Measure (FAIM), translated into Spanish. METHODS: The internal consistency of the FAQLQ-PF and the FAIM, translated into Spanish (Spain) and completed by the parents of 74 children with IgE-mediated food allergy, were evaluated with Cronbach's alpha. To test construct validity of the FAQLQ-PF, its correlation with the FAIM was also calculated. To assess their discriminant validity, we compared the values of both depending on the number of offending foods and for children with and without anaphylaxis. RESULTS: The values of Cronbach's alpha for the three domains in the FAQLQ-PF were over 0.9. The value of alpha for FAIM questions was below 0.6, which was attributed to the wording of one question. When this question was removed, alpha increased to over 0.70. There was a significant correlation between the FAQLQ-PF score and the FAIM. There were significantly poorer FAQLQ-PF scores in children with more food allergies and worse FAIM in those who had had anaphylaxis. CONCLUSIONS: The Spanish version of the FAQLQ-PF had a good internal consistency, good construct validity and validity to discriminate patients with more food allergies and anaphylaxis. It can be used as a tool to evaluate and monitor the quality of life in families with food allergic children. PMID- 29033201 TI - Towards a Common Toolbox for Rarity: A Response to Violle et al. PMID- 29033202 TI - [Pyopneumothorax in rheumatoid arthritis]. AB - INTRODUCTION: Rheumatoid arthritis (RA) is a chronic inflammatory disease affecting the joints but which frequently includes extra articular effects, including pulmonary nodules, which grow faster under immunosuppressive treatment. CASE REPORT: A 74 years old man, with mild asbestosis, underwent treatment with methotrexate then leflunomide (LEF) for seropositive RA. In February 2014, during monitoring of his asbestosis, chest CT scan showed the appearance of thick-walled cavitating lung nodules, with a central and sub pleural distribution. The patient was asymptomatic. Bronchoalveolar lavage excluded infection and tumor. LEF was stopped but in May 2014, the patient was admitted with respiratory infection and a pyopneumothorax which required surgical management. The postoperative course was complicated with a persistent pneumothorax. CONCLUSIONS: We describe a case of RA complicated by a pyopneumothorax after treatment with LEF. The risk of this complication could be reduced by regular chest imaging. PMID- 29033203 TI - [Reproducibility of strength and endurance measurements of the quadriceps in patients with COPD]. AB - INTRODUCTION: Patients with COPD frequently have lower strength and endurance in their lower limbs compared to healthy subjects and evaluation of their quadriceps strength is recommended in practice. The handheld dynamometer has been validated and is easy to use for this measurement but its reproducibility has never been studied for endurance evaluation and only poorly for strength. The objective of this study was to estimate the inter and intra-operator reproducibility of maximal voluntary strength and endurance measurements of the quadriceps with a handheld dynamometer in patients with COPD. METHODS: The measurements of maximal voluntary strength and endurance were performed with a single handheld dynamometer using isometric contraction. Three measurement sessions were undertaken, separated by 24hours. The intra- and interoperator reproducibility were estimated by calculation of the intraclass correlation coefficient. RESULTS: Overall, 21 patients were included in the study. The intraclass correlation coefficient calculated for the maximal voluntary strength for intra and interoperator reliability ranged between 0.95 and 0.99. For endurance, the coefficient for intra-operator reliability was 0.81 and the two for interoperator reliability were 0.69 and 0.77. CONCLUSION: The handheld dynamometer allows an excellent inter and intra-operator reproducibility for the measurement of quadricipital maximal voluntary strength and a correct to excellent reproducibility for the measurement of quadricipital endurance. This tool may be used for the evaluation of quadriceps strength in clinical practice in COPD patients, particularly during rehabilitation. PMID- 29033204 TI - [Structuring the French thoracic oncology over the last 20 years]. PMID- 29033205 TI - Differential Regulation of Evoked and Spontaneous Release by Presynaptic NMDA Receptors. AB - Presynaptic NMDA receptors (preNMDARs) control synaptic release, but it is not well understood how. Rab3-interacting molecules (RIMs) provide scaffolding at presynaptic active zones and are involved in vesicle priming. Moreover, c-Jun N terminal kinase (JNK) has been implicated in regulation of spontaneous release. We demonstrate that, at connected layer 5 pyramidal cell pairs of developing mouse visual cortex, Mg2+-sensitive preNMDAR signaling upregulates replenishment of the readily releasable vesicle pool during high-frequency firing. In conditional RIM1alphabeta deletion mice, preNMDAR upregulation of vesicle replenishment was abolished, yet preNMDAR control of spontaneous release was unaffected. Conversely, JNK2 blockade prevented Mg2+-insensitive preNMDAR signaling from regulating spontaneous release, but preNMDAR control of evoked release remained intact. We thus discovered that preNMDARs signal differentially to control evoked and spontaneous release by independent and non-overlapping mechanisms. Our findings suggest that preNMDARs may sometimes signal metabotropically and support the emerging principle that evoked and spontaneous release are distinct processes. VIDEO ABSTRACT. PMID- 29033206 TI - Pediatric Environmental Health: Using Data on Toxic Chemical Emissions in Practice. AB - : Children's unique behavioral and physiological characteristics can increase their exposure and susceptibility to environmental chemicals. The link between exposure to environmental chemicals and specific health outcomes, however, is often uncertain. This article introduces several resources to help health practitioners identify potential environmental exposures and risks related to toxic chemicals. It focuses on the U.S. Environmental Protection Agency's (EPA's) free and public environmental data, including the Toxics Release Inventory (TRI) data that contain information about toxics released to the environment. Three hypothetical case studies are presented to demonstrate how these data can help answer environmental exposure questions. The first case study illustrates a scenario where multiple patients in an area exhibit the same symptoms with a suspected link to environmental chemicals. The second case study illustrates a scenario where a patient with a confirmed exposure to a toxic chemical needs assistance with identifying potential environmental sources. And the third case study illustrates a scenario where a patient is concerned about the potential for future exposure to an environmental contaminant in a particular geographic area. Each case study includes contacts for follow-up questions, including the Pediatric Environmental Health Specialty Units (PEHSUs), EPA regional staff, state environmental agencies, and local health departments. These resources can help practitioners access and interpret environmental data, answer questions about potential exposures, and inform next steps if necessary. LEARNING OBJECTIVES: PMID- 29033207 TI - Corrigendum to "The influence of different abutment materials on tissue regeneration after surgical treatment of peri-implantitis - A randomized controlled preclinical study" [J Cranio-Maxillo-Facial Surg 45 (2017) 1190-1196]. PMID- 29033208 TI - Surgical treatment of synkinesis between smiling and eyelid closure. AB - Synkinetic movements are common among patients with incomplete recovery from facial palsy, with reported rates ranging from 9.1% to almost 100%. The authors propose the separation of the neural stimulus of the orbicularis oculi from that of the zygomatic muscular complex to treat eyelid closure/smiling synkinesis. This technique, associated with an anastomosis between the masseteric nerve and a central branch of the facial nerve, as well as with the use of a cross-facial nerve graft, resolves most of the spasms of the midface musculature, leading to a more relaxed tone when the mimic muscle is at rest and enhancing muscle excursion during voluntary and spontaneous smiling. Between 2011 and 2016, 18 patients affected by segmental paresis of the middle of the face underwent surgical treatment at the Maxillofacial Surgery Department of the San Paolo Hospital (Milan, Italy). Of these patients, 72.22% of cases with hypertone obtained partial to complete relaxation. Synkinesis was completely resolved in 83.33% of cases, and a significant improvement in facial movement was achieved in all patients. Neurorrhaphy of the masseteric nerve and the central branch of the facial nerve appears to produce favorable results. These initial data should be confirmed by further studies. PMID- 29033209 TI - A worldwide comparison of the management of T1 and T2 anterior floor of the mouth and tongue squamous cell carcinoma - Extent of surgical resection and reconstructive measures. AB - INTRODUCTION: Microvascular surgery following tumor resection has become an important field of oral maxillofacial surgery (OMFS). Following the results on general aspects of current reconstructive practice in German-speaking countries, Europe and worldwide, this paper presents specific concepts for the management of resection and reconstruction of T1/T2 squamous cell carcinoma (SCC) of the anterior floor of the mouth and tongue. METHODS: The DOESAK questionnaire was distributed in three different phases to a growing number of maxillofacial units worldwide. Within this survey, clinical patient settings were presented to participants and center-specific treatment strategies were evaluated. RESULTS: A total of 188 OMFS units from 36 different countries documented their treatment strategies for T1/T2 anterior floor of the mouth squamous cell carcinoma and tongue carcinoma. For floor of mouth carcinoma close to the mandible, a wide variety of concepts are presented: subperiosteal removal of the tumor versus continuity resection of the mandible and reconstruction ranging from locoregional closure to microvascular bony reconstruction. For T2 tongue carcinoma, concepts are more uniform. CONCLUSION: These results demonstrate the lack of evidence and the controversy of different guidelines for the extent of safety margins and underline the crucial need of global prospective randomized trials on this topic to finally obtain evidence for a common guideline based on a strong community of OMFS units. PMID- 29033210 TI - Measurements of air kerma index in computed tomography: A comparison among methodologies. AB - As CT exams impart high doses to patients in comparison to other radiologist techniques, reliable dosimetry is required. In this work, dosimetry in CT beams was carried out in terms of air kerma index in air or in a phantom measured by a pencil ionization chamber, thermoluminescent (TL) detectors and radiochromic film. Calibration results showed the low energy dependence of all three dosimetric systems for the 100-120kV range, the very high uncertainty of the TL dosimeters in comparison to the other systems and high nonlinearity response in terms of air kerma of the radiochromic film. Measurements with the three systems in a 120kV CT protocol showed an acceptable agreement among the weighted air kerma index values, but TL dosimeters presented the highest uncertainties in the values. PMID- 29033211 TI - Author Reply. PMID- 29033212 TI - Editorial Comment. PMID- 29033213 TI - Managing RISK when treating the injured runner with running retraining, load management and exercise therapy. PMID- 29033214 TI - The evaluation and management of respiratory disease in children with Down syndrome (DS). AB - Children with Down syndrome (DS) have wide range of respiratory problems. Although underlying abnormalities in the respiratory system are important causes of morbidity and mortality in children with DS, particularly in the young, abnormalities in other organ systems may also impact respiratory function. A comprehensive evaluation of the child with DS and respiratory disease may prevent short-term morbidity and mortality, and reduce the incidence of complications in the long term. This review provides an overview of the various causes of respiratory disease, and insight into some of the newer therapies available to treat obstructive sleep apnea, in this population. PMID- 29033215 TI - Treating resistant Pseudomonas aeruginosa lung disease in young children with cystic fibrosis. AB - Pseudomonas aeruginosa is a common bacterial pathogen in the evolution of bronchiectasis in cystic fibrosis. The appearance of resistant strains of pseudomonas is increasing with the earlier and more liberal use of a range of anti-pseudomonal antibiotics for the treatment of bacterial chest infections. The rationale for treatment and potential benefits of aggressive treatment of resistant strains of Pseudomonas aeruginosa from early in life are discussed. PMID- 29033216 TI - Anatomy of lower eyelid and eyelid-cheek junction. AB - BACKGROUND: Understanding the anatomy of the lower eyelid and the lid-cheek junction is important for surgical and non-surgical approaches. It is important to understand the correlation between the clinical presentation and the individual anatomy to direct an adequate treatment. METHODS: A review of the literature based on the authors experience combined with anatomical dissections was conducted to reveal the current concepts of the surgical and non-surgical anatomy. The various anatomical structures important for the understanding of the symptoms and the proposed treatment are described in this article. RESULTS: The anatomy of the lower eyelid and the lid-cheek junction has to be understood as a unit. Structures are continuous from the eyelid to the cheek influencing each other during aging. The concept of superficial, i.e. superficial to the orbicularis oculi muscle and deep facial fat compartments, i.e. deep to the orbicularis oculi muscle has to be applied in order to understand the relevant anatomy regarding the ligaments, fat compartments, muscular and tarsal structures and the vascularization. CONCLUSION: The understanding of the layered arrangement of the lower eyelid and eyelid-cheek junction anatomy enables practitioners to perform safe and effective surgical and non-surgical procedures. PMID- 29033219 TI - Sherwood correlation for dissolution of pooled NAPL in porous media. AB - The rate of interphase mass transfer from non-aqueous phase liquids (NAPLs) entrapped in the subsurface into the surrounding mobile aqueous phase is commonly expressed in terms of Sherwood (Sh) correlations that are expressed as a function of flow and porous media properties. Because of the lack of precise methods for the estimation of the interfacial area separating the NAPL and aqueous phases, most studies have opted to use modified Sherwood expressions that lump the interfacial area into the interphase mass transfer coefficient. To date, there are only two studies in the literature that have developed non-lumped Sherwood correlations; however, these correlations have undergone limited validation. In this paper controlled dissolution experiments from pooled NAPL were conducted. The immobile NAPL mass is placed at the bottom of a flow cell filled with porous media with water flowing horizontally on top. Effluent aqueous phase concentrations were measured for a wide range of aqueous phase velocities and for two different porous media. To interpret the experimental results, a two dimensional pore network model of the NAPL dissolution kinetics and aqueous phase transport was developed. The observed effluent concentrations were then used to compute best-fit mass transfer coefficients. Comparison of the effluent concentrations computed with the two-dimensional pore network model to those estimated with one-dimensional analytical solutions indicates that the analytical model which ignores the transport in the lateral direction can lead to under estimation of the mass transfer coefficient. Based on system parameters and the estimated mass transfer coefficients, non-lumped Sherwood correlations were developed and compared to previously published data. The developed correlations, which are a significant improvement over currently available correlations that are associated with large uncertainties, can be incorporated into future modeling studies requiring non-lumped Sh expressions. PMID- 29033218 TI - Early-onset Colorectal Cancer is Distinct From Traditional Colorectal Cancer. AB - BACKGROUND: Early-onset colorectal cancer (E-CRC) is increasing in incidence, unlike traditional CRC (T-CRC). We sought to characterize differences between E CRC and T-CRC. MATERIALS AND METHODS: Data sources included the Surveillance, Epidemiology, and End Results database, the Behavioral Risk Factor Surveillance Survey, and The Cancer Genome Atlas (TCGA). We compared demographics, tumor characteristics, and incidence of CRC in subjects aged 20 to 49 years (E-CRC) with those aged >= 50 years (T-CRC). We correlated the incidence of E-CRC and T CRC to CRC risk factors and age-dependent genomic characteristics of CRC using TCGA. RESULTS: A total of 369,796 CRCs were identified (2000-2011). E-CRC incidence has risen 1.4% per year, whereas T-CRC has declined 3.1% per year (P < .05). The incidence of E-CRC increases in a step-wise fashion from the ascending colon to rectum (P < 2.2e-16). E-CRC is more prevalent in male (53.7% vs. 46.4%; P < .001), Black (14.6% vs. 11.0%; P < .001), and Hispanic (14.7% vs. 8.3%; P < .001) patients. E-CRC presents with aggressive histology, including high-grade (1.5% vs. 1.3%; P < .001), signet ring cell (1.9% vs. 0.9%; P < .001), and mucinous carcinomas (8.9% vs. 8.1%; P < .001), and more often with distant disease (24.4% vs. 18.8%; P < .001). The geographic distribution of E-CRC mirrors United States counties with higher Black population densities. Unlike T-CRC, E CRC prevalence is not correlated with known CRC risk factors. E-CRC is associated with a lower rate of mutations than traditional CRC. Limitations of this study include E-CRC sample size for the TCGA analysis, as well as lack of comorbidity information and family history. CONCLUSION: E-CRC tumors are clinically, pathologically, and molecularly distinct from T-CRC. Further evaluation of genetic and molecular differences is necessary to understand the pathophysiology of E-CRC and to help target treatment/surveillance strategies. PMID- 29033217 TI - Normalization of the trapezius sEMG signal - a reliability study on women with and without neck-shoulder pain. AB - OBJECTIVE: To evaluate within- and between-days reliability of two normalization methods of surface electromyography (sEMG) recordings of the trapezius muscle. METHODS: Nineteen women were allocated into 2 groups (healthy and with neck shoulder pain). The sEMG was recorded in two sessions with 7 days in between sessions. The four portions of the trapezius muscle (the clavicular and acromial fibers of the upper trapezius, the middle and the lower trapezius) were evaluated during maximal and submaximal isometric voluntary contractions. The within- and between-days reliability of both maximal and submaximal contractions were assessed through Intraclass Correlation Coefficient (ICC(2,1) was used for within day analyses of both maximal and submaximal contractions, and for between-days analyses of maximal contractions while ICC(2,3) was used for between-days analyses of submaximal contractions), Coefficient of Variation, Standard Error of Measurement, and Bland-Altman analysis. RESULTS: In general, submaximal contractions presented higher within-day reliability, with higher ICC values (e.g., middle trapezius - mean of 0.97), smaller Coefficient of Variation and Standard Error of Measurement ranges compared to maximal contractions (ICC values, e.g. for middle trapezius - mean of 0.94) in both groups. The same pattern was observed for between-days analyses, with submaximal contractions presenting higher ICC values (e.g., middle trapezius - mean of 0.84), smaller Coefficient of Variation and Standard Error of Measurement ranges than maximal contractions (ICC values, e.g. for middle trapezius - mean of 0.73) in both groups. CONCLUSION: Submaximal contractions are recommended for normalization procedures of trapezius sEMG, in both subjects with neck-shoulder pain and healthy individuals. PMID- 29033220 TI - Transport and potential attenuation of nitrogen in shallow groundwaters in the lower Rangitikei catchment, New Zealand. AB - Intensive agricultural activities are generally associated with nitrogen leaching from agricultural soils, and this nitrogen has the potential to percolate and contaminate groundwater and surface waters. We assessed surface water and groundwater interactions, and nitrogen leaching and its potential attenuation in shallow groundwater in the lower Rangitikei River catchment (832km2), New Zealand. We combined regional- and local-scale field surveys and experiments, nutrient budget modelling, and hydraulic and geochemical methods, to gain an insight into leaching, transformation and transport of nitrogen via groundwaters to the river in the study area. Concurrent river flow gaugings (in January 2015) and a piezometric map, developed from measured depths to groundwater in 110 bores (in October 2014), suggest groundwater discharges to the Rangitikei River in the upper parts of the study area, while there is groundwater recharge near the coast. The groundwater redox characterisation, based on sampling and analysis of 15 mostly shallow bores (<30m below ground level (bgl)), suggests groundwater across the lower Rangitikei catchment in general is under anoxic/reduced conditions. The groundwater typically has low dissolved oxygen (DO) concentrations (<1mg/L), suggesting the subsurface environment is conducive to potential attenuation by 'denitrification' of NO3-N in groundwater. We further measured NO3-N attenuation in shallow groundwater piezometers (3-6mbgl) using single-well push-pull tests. We found generally low levels (<0.5mg/L) of NO3-N in shallow groundwater piezometers (>5mbgl), despite being installed under intensive land uses, such as dairying and cropping. Our in-field push-pull tests showed NO3 N reduction at four shallow groundwater piezometers, with the rates of reduction varying from 0.04mgNL-1h-1 to 1.57mgNL-1h-1. This highlights the importance of a sound understanding of not only the sources, but also transport and transformation, or fate, of nutrients leached from farms, to mitigate the likely impacts of land use on water quality and ecosystem health in agricultural catchments. PMID- 29033221 TI - On the role of visual experience in mathematical development: Evidence from blind mathematicians. AB - Advanced mathematical reasoning, regardless of domain or difficulty, activates a reproducible set of bilateral brain areas including intraparietal, inferior temporal and dorsal prefrontal cortex. The respective roles of genetics, experience and education in the development of this math-responsive network, however, remain unresolved. Here, we investigate the role of visual experience by studying the exceptional case of three professional mathematicians who were blind from birth (n=1) or became blind during childhood (n=2). Subjects were scanned with fMRI while they judged the truth value of spoken mathematical and nonmathematical statements. Blind mathematicians activated the classical network of math-related areas during mathematical reflection, similar to that found in a group of sighted professional mathematicians. Thus, brain networks for advanced mathematical reasoning can develop in the absence of visual experience. Additional activations were found in occipital cortex, even in individuals who became blind during childhood, suggesting that either mental imagery or a more radical repurposing of visual cortex may occur in blind mathematicians. PMID- 29033222 TI - Processing of structural neuroimaging data in young children: Bridging the gap between current practice and state-of-the-art methods. AB - The structure of the brain is subject to very rapid developmental changes during early childhood. Pediatric studies based on Magnetic Resonance Imaging (MRI) over this age range have recently become more frequent, with the advantage of providing in vivo and non-invasive high-resolution images of the developing brain, toward understanding typical and atypical trajectories. However, it has also been demonstrated that application of currently standard MRI processing methods that have been developed with datasets from adults may not be appropriate for use with pediatric datasets. In this review, we examine the approaches currently used in MRI studies involving young children, including an overview of the rationale for new MRI processing methods that have been designed specifically for pediatric investigations. These methods are mainly related to the use of age specific or 4D brain atlases, improved methods for quantifying and optimizing image quality, and provision for registration of developmental data obtained with longitudinal designs. The overall goal is to raise awareness of the existence of these methods and the possibilities for implementing them in developmental neuroimaging studies. PMID- 29033223 TI - Who gets a pouch after colectomy in New York state and why? AB - BACKGROUND: This study identified variation and factors associated with ileal pouch-anal anastomosis after total colectomy for ulcerative colitis. METHODS: The Statewide Planning & Research Cooperative System was used to identify patients with ulcerative colitis who underwent total colectomy in New York state from 2000 2013. Bivariate and mixed-effects multivariable analyses were performed to assess patient, surgeon, and hospital-level factors as well as surgeon and hospital level variation associated with ileal pouch-anal anastomosis after total colectomy. RESULTS: Across 2,203 patients, the rate of ileal pouch-anal anastomosis was 34%. Overall, 465 surgeons and 148 hospitals performed at least one total colectomy for ulcerative colitis from 2000-2013, and 178 surgeons and 80 hospitals performed at least one ileal pouch-anal anastomosis for ulcerative colitis during the study period. The median rate of ileal pouch-anal anastomosis creation was 14% (range = 6% to 69%) across surgeons and 14% (range = 7% to 63%) across hospitals. Patient-level factors independently associated with ileal pouch anal anastomosis were younger age, lower comorbidity burden, and elective total colectomy. Surgeon and hospital-level factors independently associated with ileal pouch-anal anastomosis were colorectal surgery board-certification, surgeon ileal pouch-anal anastomosis volume, and hospital ileal pouch-anal anastomosis volume. Patient-level factors explained 43% of the surgeon and 47% of the hospital variation in ileal pouch-anal anastomosis creation while surgeon-level factors explained 26% of the surgeon and 21% of the hospital variation. CONCLUSION: These findings suggest that variation in ileal pouch-anal anastomosis creation for ulcerative colitis is influenced largely by provider practices/preferences or lack of referral of patients after colectomy to surgeons and centers that perform ileal pouch-anal anastomosis. Providers and hospitals that do not routinely perform ileal pouch-anal anastomosis should refer patients to centers with ileal pouch-anal anastomosis expertise after total colectomy. PMID- 29033224 TI - Downstaging therapy followed by liver transplantation for hepatocellular carcinoma beyond Milan criteria. AB - BACKGROUND: Orthotopic liver transplantation is a curative treatment for hepatocellular carcinoma within Milan criteria, but these criteria preclude many patients from transplant candidacy. Recent studies have demonstrated that downstaging therapy can reduce tumor burden to meet conventional criteria. The present study reports a single-center experience with tumor downstaging and its effects on post-orthotopic liver transplantation outcomes. METHODS: All patients with hepatocellular carcinoma who were evaluated by our multidisciplinary liver services team from 2012 to 2016 were identified (N = 214). Orthotopic liver transplantation candidates presenting outside of Milan criteria at initial radiographic diagnosis and/or an initial alpha-fetoprotein >400 ng/mL were categorized as at high risk for tumor recurrence and post-transplant mortality. RESULTS: Of the 214 patients newly diagnosed with hepatocellular carcinoma, 73 (34.1%) eventually underwent orthotopic liver transplantation. The majority of patients who did not undergo orthotopic liver transplantation were deceased or lost to follow-up (47.5%), with 14 of 141 (9.9%) currently listed for transplantation. Among transplanted patients, 21 of 73 (28.8%) were considered high-risk candidates. All 21 patients were downstaged to within Milan criteria with an alpha-fetoprotein <400 ng/mL before orthotopic liver transplantation, through locoregional therapies. Recurrence of hepatocellular carcinoma was higher but acceptable between downstaged high-risk and traditional candidates (9.5% vs 1.9%; P > .05) at a median follow-up period of 17 months. Downstaged high-risk candidates had a similar overall survival compared with those transplanted within Milan criteria (log-rank P > .05). CONCLUSIONS: In highly selected cases, patients with hepatocellular carcinoma outside of traditional criteria for orthotopic liver transplantation may undergo downstaging therapy in a multidisciplinary fashion with excellent post-transplant outcomes. These data support an aggressive downstaging approach for selected patients who would otherwise be deemed ineligible for transplantation. PMID- 29033226 TI - The Importance of Palliative Care for Dementia. PMID- 29033225 TI - Nomograms for prediction of long-term survival in elderly patients after partial hepatectomy for hepatocellular carcinoma. AB - BACKGROUND: Partial hepatectomy is an important treatment for elderly patients with hepatocellular carcinoma. However, prediction of long-term outcomes of an individual elderly patient after partial hepatectomy still is lacking. This study aimed to develop 2 nomograms to pre- or postoperatively predict overall survival for these patients. METHODS: Of the 528 elderly patients (aged >=65 years) who underwent partial hepatectomy for hepatocellular carcinoma at the Eastern Hepatobiliary Surgery Hospital between 2008 and 2011, 425 patients served as a training cohort to develop pre- and postoperative nomograms, and the remaining 103 patients comprised a validation cohort. The Cox proportional hazards model was used for univariate and multivariable analyses of tumor recurrence and overall survival. Discrimination and calibration of the models were measured using the concordance index, calibration plots, and Kaplan-Meier curves. RESULTS: Based on preoperative data, the independent risk factors of overall survival were age >=75 years, Charlson score, alpha-fetoprotein >=20 MUg/L, hepatitis B virus deoxyribonucleic acid >=104 IU/mL, and tumor diameter. Based on postoperative data, nonanatomic hepatectomy, absence of tumor encapsulation, and presence of microvascular invasion were additional independent risk factors. These independent predictors were incorporated into the pre- and postoperative nomograms, respectively. The concordance indexes of the 2 nomograms for overall survival prediction were 0.70 (95% confidence interval, 0.67-0.74) and 0.72 (0.69 0.78), respectively. Both nomograms accurately predicted 1-, 3-, and 5-year overall survival probability, and their predictive performances were optimally validated. CONCLUSION: The proposed 2 nomograms showed good individualized predictive performance in elderly patients with hepatocellular carcinoma before and after partial hepatectomy. PMID- 29033227 TI - Spasticity and hyperselective neurectomy in the upper limb. AB - Spasticity is a complex pathology, both in terms of assessment and treatment. This article focuses on the clinical examination (objective, capacity, performance and function), which is key for choosing a treatment and can be helped by botulinum toxin injections. The treatment involves physical therapy, occupational therapy, medications and surgery. Neurectomy has been used in the upper limb since 1912 and is one of the therapeutic options for spasticity. This treatment is usually reserved for nonfunctional hands. Cadaver studies have helped us better understand nerve anatomy and improve the hyperselective neurectomy (HSN) technique. This article describes the history of neurectomy, how anatomical dissections apply to surgery, the HSN technique in the musculocutaneous nerve, median nerve and ulnar nerve and results of preliminary prospective studies. Spasticity, mobility, performance and function were evaluated a few months after HSN and about 12 months later to assess the permanence of the results in children and adult spastic patients. No matter the nerve or function targeted (elbow extension, wrist extension, or supination), spasticity was reduced with improvements in the functional House score and appeared stable at the last follow-up. HSN seems to be a good, reliable therapeutic option for spasticity, including functional hands. PMID- 29033228 TI - Epigenetics: A way to bridge the gap between biological fields. AB - The concept of epigenetics has evolved since Waddington defined it from the late 1930s as the study of the causal mechanisms at work in development. It has become a multi-faceted notion with different meanings, depending on the disciplinary context it is used. In this article, we first analyse the transformations of the concept of epigenetics, from Waddington to contemporary accounts, in order to identify its different meanings and traditions, and to come up with a typology of epigenetics throughout its history. Second, we show on this basis that epigenetics has progressively turned its main focus from biological problems regarding development, toward issues concerning evolution. Yet, both these different epistemological aspects of epigenetics still coexist. Third, we claim that the classical opposition between epigenesis and preformationism as ways of thinking about the developmental process is part of the history of epigenetics and has contributed to its current various meanings. With these objectives in mind, we first show how Waddington introduced the term "epigenetics" in a biological context in order to solve a developmental problem, and we then build on this by presenting Nanney's, Riggs' and Holliday's definitions, which form the basis for the current conception of "molecular epigenetics". Then, we show that the evo-devo research field is where some particular uses of epigenetics have started shifting from developmental issues to evolutionary problems. We also show that epigenetics has progressively focused on the issue of epigenetic inheritance within the Extended Evolutionary Synthesis' framework. Finally, we conclude by presenting a typology of the different conceptions of epigenetics throughout time, and analyse the connections between them. We argue that, since Waddington, epigenetics, as an integrative research area, has been used to bridge the gap between different biological fields. PMID- 29033230 TI - History of traction. PMID- 29033229 TI - Analysis of Recurrent Stroke Volume and Prognosis between Warfarin and Four Non Vitamin K Antagonist Oral Anticoagulants' Administration for Secondary Prevention of Stroke. AB - OBJECTIVE: We investigated recurrent stroke volume with nonvalvular atrial fibrillation (NVAF) patients treated with non-vitamin K antagonist oral anticoagulants (NOACs) about clinical backgrounds and number of recurrent stroke. METHODS: We administered 4 NOACs, dabigatran, rivaroxaban, apixaban, and edoxaban in 101 postcardioembolic strokes with NVAF. In a retrospective study, we measured recurrent stroke volume with magnetic resonance imaging volumetric software and compared them between 10 vitamin K anticoagulant (VKA: warfarin) cases and 13 NOAC cases under anticoagulant therapy. RESULTS: Of 101 cases, 31 were started with a VKA and switched to NOACs after 10 recurrent strokes. Other 70 cases were directly started with NOACs and 13 cases with NOACs as first anticoagulants had recurrent stroke. The frequency of recurrent stroke during anticoagulant therapy is not different between the VKA group and the 3 NOACs group. Recurrent stroke volume is significantly larger in the VKA group (26.4 cm3) than in the NOACs group (1.2 cm3). CONCLUSIONS: Secondary prevention with NOACs after stroke might be more beneficial than a VKA by reducing recurrent infarct volume. PMID- 29033232 TI - Design, synthesis and biological evaluation of phthalimide-alkylamine derivatives as balanced multifunctional cholinesterase and monoamine oxidase-B inhibitors for the treatment of Alzheimer's disease. AB - A series of novel phthalimide-alkylamine derivatives were synthesized and evaluated as multi-functions inhibitors for the treatment of Alzheimer's disease (AD). The results showed that compound TM-9 could be regarded as a balanced multi targets active molecule. It exhibited potent and balanced inhibitory activities against ChE and MAO-B (huAChE, huBuChE, and huMAO-B with IC50 values of 1.2MUM, 3.8MUM and 2.6 MUM, respectively) with low selectivity. Both kinetic analysis of AChE inhibition and molecular modeling study suggested that TM-9 binds simultaneously to the catalytic active site and peripheral anionic site of AChE. Interestingly, compound TM-9 abided by Lipinski's rule of five. Furthermore, our investigation proved that TM-9 indicated weak cytotoxicity, and it could cross the blood-brain barrier (BBB) in vitro. The results suggest that compound TM-9, an interesting multi-targeted active molecule, offers an attractive starting point for further lead optimization in the drug-discovery process against Alzheimer's disease. PMID- 29033231 TI - The combination of dynapenia and abdominal obesity as a risk factor for worse trajectories of IADL disability among older adults. AB - BACKGROUND/OBJECTIVES: The concept of dynapenic obesity has been gaining great attention recently. However, there is little epidemiological evidence demonstrating that dynapenic abdominal obese individuals have worse trajectories of disability than those with dynapenia and abdominal obesity alone. Our aim was to investigate whether dynapenia combined with abdominal obesity can result in worse trajectories of instrumental activities of daily living (IADL) among English and Brazilian older adults over eight and ten years of follow-up, respectively. METHODS: We used longitudinal data from 3374 participants from the English Longitudinal Study of Ageing (ELSA) and 1040 participants from the Brazilian Health, Well-being and Aging Study (SABE) who were free from disability as assessed by IADL at baseline. IADL disability was defined herein as a difficulty to perform the following: preparing meals, managing money, using transportation, shopping, using the telephone, house cleaning, washing clothes, and taking medications according to the Lawton IADL modified scale. The study population in each country was categorized into non-dynapenic/non-abdominal obese (reference group), abdominal obese, dynapenic and dynapenic abdominal obese according to their handgrip strength (<26 kg for men and <16 kg for women) and waist circumference (>102 cm for men and >88 cm for women). We used generalized linear mixed models with IADL as the outcome. RESULTS: The estimated change over time in IADL disability was significantly higher for participants with dynapenic abdominal obesity compared to those with neither condition in both cohorts (ELSA: +0.023, 95% CI = 0.012-0.034, p < 0.001; SABE: +0.065, 95% CI = 0.038-0.091, p < 0.001). Abdominal obesity was also associated with changes over time in IADL disability (ELSA: +0.009, 95% CI = 0.002-0.015, p < 0.05; SABE: +0.021, 95% CI = 0.002-0.041, p < 0.05), which was not observed for dynapenia. CONCLUSIONS: Abdominal obesity is an important risk factor for IADL decline but participants with dynapenic abdominal obesity had the highest rates of IADL decline over time among English and Brazilian older adults. PMID- 29033233 TI - Design, synthesis and biological evaluation of 2-acetyl-5-O-(amino-alkyl)phenol derivatives as multifunctional agents for the treatment of Alzheimer's disease. AB - A series of 2-acetyl-5-O-(amino-alkyl)phenol derivatives was designed, synthesized and evaluated as multi-function inhibitors for the treatment of Alzheimer's disease (AD). The results revealed that compound TM-3 indicated selective AChE inhibitory potency (eeAChE, IC50 = 0.69 MUM, selective index (SI) = 32.7). Both kinetic analysis of AChE inhibition and molecular modeling study suggested that TM-3 could simultaneously bind to the catalytic active site and peripheral anionic site of AChE. And TM-3 was also a highly selective MAO-B inhibitor (IC50 = 6.8 MUM). Moreover, TM-3 could act as antioxidant (ORAC value was 1.5eq) and neuroprotectant, as well as a selective metal chelating agent. More interestingly, compound TM-3 could cross the blood-brain barrier (BBB) in vitro and abided by Lipinski's rule of five. Therefore, compound TM-3, a promising multi-targeted active molecule, offers an attractive starting point for further lead optimization in the drug-discovery process against AD. PMID- 29033234 TI - Antibacterial constituents of the plant family Amaryllidaceae. AB - There is a pressing need in antibiotic drug discovery for new drugs to counterbalance the effects of multidrug resistance. Plants represent a viable platform for such endeavors owing to their traditional relevance in infectious disease therapies as well as their vast chemical resources. As many as fifty different species of the Amaryllidaceae are discernible with such functions in traditional medicine, thirty-nine of which have been subjected to pharmacological evaluations. Submicromolar antibacterial activities for several of these plants have been the driving force behind studies targeting their active constituents. This review accounts for close to a hundred of such entities, mainly isoquinoline alkaloids, which have been the focus in assays of thirty different bacterial pathogens. Promising activities were detected in several instances, although disappointingly the submicromolar level could not be breached. Also considered are structure-activity relationships which have emerged within the various groups of Amaryllidaceae alkaloids. PMID- 29033235 TI - Ruthenium(II)- and copper(I)-catalyzed synthesis of click-xylosides and assessment of their glycosaminoglycan priming activity. AB - Xylosides are small molecules that serve as primers of glycosaminoglycan biosynthesis. Xyloside mediated modulation of biological functions depends on the extent of priming activity and fine structures of primed GAG chains. In earlier studies, copper (Cu) catalyzed synthesis of click-xylosides and their priming activity were extensively documented. In the current study, ruthenium (Ru) mediated catalysis was employed to synthesize xylosides with a 1,5-linkage between the xylose and the triazole ring instead of a 1,4-linkage as found in Cu catalyzed click-xyloside synthesis. Mono- and bis-click-xylosides were synthesized using each catalytic method and their glycosaminoglycan priming activity was assessed in vitro using a cellular system. Ru-catalyzed click xylosides showed a higher priming activity as measured by incorporation of radioactive sulfate into primed glycosaminoglycan chains. This study demonstrates that altering the linkage of the aglycone to the triazole ring changes the priming activity. Computational modeling provides a molecular rationale for higher priming ability of Ru-mediated click-xylosides. Higher GAG priming activity is attributed to the formation of more stable interactions between the 1,5-linked xylosides and beta-1,4-galactosyltransferase 7 (beta4GalT7). PMID- 29033236 TI - Pharmaconutrition with intravenous selenium in intensive care: The end of an era? PMID- 29033237 TI - Coronary artery calcium-guided prevention: The time is now! PMID- 29033238 TI - Dexrazoxane prevents skin necrosis in non-target embolization of falciform artery during transcatheter arterial chemoembolization (TACE). PMID- 29033239 TI - Socioeconomic Factors, Health Behavior, and Late-Stage Diagnosis of Breast Cancer: Considering the Impact of Delay in Diagnosis. AB - BACKGROUND: Stage of cancer at diagnosis is one of the most important factors in patient prognosis. By controlling for diagnostic delay, this study aimed to identify factors associated with late-stage breast cancer (BC). PATIENTS AND METHODS: From November 2014 to January 2017, required information on 497 patients who were newly diagnosed with BC was obtained from patients' medical records. Logistic regression was used to measure the association between cancer stage and study variables. RESULTS: Only 18.3% of patients were diagnosed at stage I. The rest were diagnosed at stage II (45.5%) or higher (36.2%). Among those with <= 3 months' diagnostic delay, age (odds ratio [OR] = 0.96; 95% confidence interval [CI], 0.93-0.99), place of residence (OR urban/rural = 1.72; 95% CI, 1.42-1.93), income (OR high/low = 0.27; 95% CI, 0.10-0.72), performing breast self examination (OR yes/no = 0.51; 95% CI, 0.0.26 -0.98), smoking (OR yes/no = 2.23; 95% CI, 1.37-3.62), history of chest X-ray (OR yes/no = 1.40; 95% CI, 1.16-1.98), presence of chronic diseases (OR yes/no = 1.73; 95% CI, 1.36-5.48), and, for those with a delay of > 3 months, marriage age (OR = 0.83; 95% CI, 0.73-0.94), income (OR high/low = 0.07; 95% CI, 0.008-0.63), family history of BC (OR = 3.82; 95% CI, 1.05-5.05), daily exercise (OR < 10/10-20 = 0.10; 95% CI, 0.01-0.67), and presence of chronic diseases (OR yes/no = 1.77; 95% CI, 1.73-5.07), were associated with late-stage of cancer. CONCLUSION: Shortening the diagnostic delay can help patients receive medical treatment at an earlier disease stage, resulting in better prognosis. Smokers, younger women, and those with chronic conditions or a family history of BC should take extra caution, as they may have worse prognosis if diagnosed with cancer. PMID- 29033240 TI - Single Nucleotide Polymorphisms in the Acylphosphatase 2 Gene and The SNP-SNP Interactions on the Risk of Breast Cancer in Chinese Han Women. AB - INTRODUCTION: The purpose of this study was to investigate the impact of single nucleotide polymorphisms (SNPs) in the acylphosphatase 2 gene and the SNP-SNP interactions on breast cancer (BC) risk in Chinese Han women. PATIENTS AND METHODS: A logistic regression model was used to examine the association between SNPs and BC risk. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated. Generalized multifactor dimensionality reduction was employed to analyze the SNP-SNP interaction. RESULTS: Logistic regression analysis showed that BC risk was significantly higher in carriers with the rs1682111-A allele than those with the TT genotype (TA + AA vs. TT; adjusted OR, 1.47; 95% CI, 1.21 1.92). In addition, we also found that BC risk was significantly higher in carriers with the rs10439478-C allele than those with the AA genotype (AC + CC vs. AA); adjusted OR, 1.67; 95% CI, 1.29-2.11. We found a significant 2-locus model (P = .0010) involving rs1682111 and rs10439478; the cross-validation consistency of this model was 10 of 10, and the testing accuracy was 60.11%. Participants with the TA or AA of rs1682111 and the AC or CC of rs10439478 genotype have the highest BC risk, compared with subjects with the TT of rs1682111 and the AA of rs10439478 genotype (OR, 2.52; 95% CI, 1.67-3.44), after covariate adjustment for gender, age, age at menarche, number of children, and body mass index. CONCLUSIONS: Minor allele of rs1682111 and rs10439478 and its interaction were associated with increased BC risk. PMID- 29033241 TI - Gender Differences in the Authorship of Original Research in Pediatric Journals, 2001-2016. AB - OBJECTIVES: To examine the gender of authors of original research in 3 high impact pediatric journals between 2001 and 2016, given the importance of publishing on academic promotion, and to compare authorship gender with the percentage of women on editorial boards and with academic faculty composition. STUDY DESIGN: We assessed the prevalence of female first and senior (last-listed) authorship of original research articles published in 3 pediatric-focused journals Pediatrics, JAMA Pediatrics (entitled Archives of Pediatric and Adolescent Medicine until 2013), and The Journal of Pediatrics. We also examined the gender breakdown of the main editors and the broader editorial boards of these journals. In addition, we examined whether junior female faculty co authored with male or female senior faculty. RESULTS: Of 3895 original articles, 22 were excluded because the gender of either the first or senior author could not be determined from the name. An analysis of authorship by year showed increasing female representation across the selected journals in both first (39.8% in 2001, 57.7% in 2016) and senior (28.6% in 2001, 38.1% in 2016) authors, respectively. Editorial boards also showed increasing female representation (17.8% in 2001 to 39.8% in 2016). Junior female faculty were more likely to co author with senior female women (female first and last author); the gap remained unchanged despite the increasing number of women entering pediatrics. CONCLUSIONS: Women are underrepresented as authors and editors, although the gap is closing. Junior women are less likely to co-author with senior men, which may be a disservice given current gender disparities in promotion and leadership. PMID- 29033243 TI - Epilepsy by Any Other Name Would (Not!) Smell as Sweet. PMID- 29033242 TI - Weight Trajectories from Birth and Bone Mineralization at 7 Years of Age. AB - OBJECTIVE: To assess whether different trajectories of weight gain since birth influence bone mineral content (BMC) and areal bone mineral density (aBMD) at 7 years of age. STUDY DESIGN: We studied a subsample of 1889 children from the Generation XXI birth cohort who underwent whole-body dual-energy radiograph absorptiometry. Weight trajectories identified through normal mixture modeling for model-based clustering and labeled "normal weight gain," "weight gain during infancy," "weight gain during childhood," and "persistent weight gain" were used. Differences in subtotal BMC, aBMD, and size-corrected BMC (scBMC) at age 7 years according to weight trajectories were estimated through analysis of covariance. RESULTS: Compared with the "normal weight gain" trajectory, children in the remaining trajectories had significantly greater BMC, aBMD, and scBMC at age 7 years, with the strongest associations for "persistent weight gain" (girls [BMC: 674.0 vs 559.8 g, aBMD: 0.677 vs 0.588 g/cm2, scBMC: 640.7 vs 577.4 g], boys [BMC: 689.4 vs 580.8 g, aBMD: 0.682 vs 0.611 g/cm2, scBMC: 633.0 vs 595.6 g]). After adjustment for current weight, and alternatively for fat and lean mass, children with a "weight gain during childhood" trajectory had greater BMC and aBMD than those with a "normal weight gain" trajectory, although significant differences were restricted to girls (BMC: 601.4 vs 589.2 g, aBMD: 0.618 vs 0.609 g/cm2). CONCLUSION: Overall, children following a trajectory of persistent weight gain since birth had clearly increased bone mass at 7 years, but weight gain seemed slightly more beneficial when it occurred later rather than on a normal trajectory during the first 7 years of life. PMID- 29033244 TI - iASPP Is an Antioxidative Factor and Drives Cancer Growth and Drug Resistance by Competing with Nrf2 for Keap1 Binding. AB - Reactive oxygen species (ROS) have emerged as important signaling molecules that play crucial roles in carcinogenesis and cytotoxic responses. Nrf2 is the master regulator of ROS balance. Thus, uncovering mechanisms of Nrf2 regulation is important for the development of alternative treatment strategies for cancers. Here, we demonstrate that iASPP, a known p53 inhibitor, lowers ROS independently of p53. Mechanistically, iASPP competes with Nrf2 for Keap1 binding via a DLT motif, leading to decreased Nrf2 ubiquitination and increased Nrf2 accumulation, nuclear translocation, and antioxidative transactivation. This iASPP-Keap1-Nrf2 axis promotes cancer growth and drug resistance both in vitro and in vivo. Thus, iASPP is an antioxidative factor and represents a promising target to improve cancer treatment, regardless of p53 status. PMID- 29033245 TI - Clinical comparison of alfaxalone, ketamine and propofol following medetomidine and methadone in dogs. AB - OBJECTIVE: To compare the clinical effects of alfaxalone, ketamine and propofol in dogs following premedication with medetomidine and methadone. STUDY DESIGN: Prospective, 'blinded' and randomized clinical study. ANIMALS: A total of 75 male dogs presented for neutering at a charity clinic. METHODS: Dogs were allocated to be administered alfaxalone, ketamine or propofol following premedication with medetomidine (20 MUg kg-1) and methadone (0.2 mg kg-1). Dogs were temperament scored prior to premedication. Quality of sedation, induction of anaesthesia, recovery and recovery environment were scored by simple descriptive scales. Physiological variables during anaesthesia were recorded. Continuous numerical data were analysed using analysis of variance with repeated measures as necessary. Nonparametric data were analysed using Kruskal-Wallis tests and multiple comparisons using Dunn's test. Statistical significance was set at p < 0.05. RESULTS: The mean (+/- standard deviation) dose of alfaxalone was 0.6 +/- 0.2 mg kg-1, that for ketamine was 1.5 +/- 0.7 mg kg-1 and that for propofol was 0.8 +/- 0.3 mg kg-1. Alfaxalone inductions were significantly smoother compared to ketamine but not to propofol. Only one of 75 of the inductions was deemed poor. There were no differences in cardiopulmonary variables between groups except immediately after induction of anaesthesia. There were no differences in quality of recovery between groups. CONCLUSIONS AND CLINICAL RELEVANCE: All three induction agents provided reliable, predictable anaesthesia conditions that were clinically indistinguishable and ideal for teaching anaesthesia skills. The medetomidine and methadone premedication resulted in profound, heavy sedation and the quality of induction of anaesthesia was better with alfaxalone compared to ketamine. No significant difference in induction quality was detected between alfaxalone and proprofol or propofol and ketamine, and these findings are likely to be of limited clinical significance when choosing an induction agent. PMID- 29033246 TI - Effect of choline chloride premedication on xylazine-induced hypoxaemia in sheep. AB - OBJECTIVE: To determine the anti-inflammatory efficacy of choline in vivo and in vitro and to investigate the anti-inflammatory mechanisms of choline. STUDY DESIGN: Randomized, controlled studies. ANIMALS: In vivo trials used 16 Romney sheep. In vitro experiments utilized RAW 264.7 mouse macrophage cells. METHODS: Hypoxaemia induced in 16 sheep by intravenous (IV) injection of 50 MUg kg-1 xylazine, an alpha-2 agonist, was measured in sheep at 0, 1 and 4 minutes using arterial blood gas analysis with and without 50 mg kg-1 IV choline chloride premedication. Cell culture studies used enzyme-linked immunosorbent assay to measure the release of tumour necrosis factor (TNF-alpha) from lipopolysaccharide (LPS) stimulated macrophages with and without choline chloride premedication. TNF alpha release was compared to thalidomide suppressed and untreated cells. RESULTS: Choline premedication in sheep mitigated a reduction in arterial partial pressure of oxygen (PaO2) but did not prevent development of clinically significant hypoxaemia. Decrease in mean PaO2 of choline treated sheep was 6.36 kPa (47.7 mmHg) compared to 9.81 kPa (73.6 mmHg) in control sheep. In vitro studies demonstrate that choline administered concurrent with LPS activation did not significantly suppress TNF-alpha expression but that treatment of cells with choline 10 minutes prior to LPS activation did significantly suppress TNF-alpha expression. Choline pretreated cells expressed 23.99 +/- 4.52 ng mg-1 TNF-alpha while LPS only control cells expressed 33.83 +/- 3.20 ng mg-1. CONCLUSIONS: Choline is able to prevent macrophage activation in vitro when administered prior to LPS activation and may reduce hypoxaemia in sheep developing pulmonary oedema after xylazine administration. This effect requires premedication with choline. CLINICAL RELEVANCE: Pharmacological manipulation of autonomic inflammatory responses holds promise for the treatment of inflammation. However, the complex cellular mechanisms involved in this reflex means that an adequate therapy should approach multiple pathways and mechanisms of the inflammatory response. PMID- 29033247 TI - Progressive reticulate skin pigmentation and anonychia in a patient with bone marrow failure. AB - KEY TEACHING POINTS. PMID- 29033248 TI - Use of oral antidepressants in patients with chronic pruritus: A systematic review. AB - BACKGROUND: Chronic pruritus is a common skin symptom with marked impact on quality of life. Adequate treatment can be challenging for clinicians, demanding the exploration of new treatment options such as oral antidepressants. OBJECTIVE: To evaluate the use of oral antidepressants in chronic pruritus by a systematic overview of the available relevant literature. METHODS: The PubMed, EMBASE, Cochrane, and Web of Science databases were searched. Studies providing original data on the efficacy of oral antidepressants in patients with chronic pruritus were included. We assessed the risk for bias by using the Cochrane Risk of Bias tool for randomized controlled trials and the Newcastle-Ottawa Scale for observational studies. RESULTS: A total of 35 studies evaluating the oral use of fluoxetine, fluvoxamine, paroxetine, sertraline, amitriptyline, nortriptyline, doxepin, and mirtazapine were included. The majority of included articles showed a marked improvement of pruritus during treatment with oral antidepressants. LIMITATIONS: Recommendations are mainly based on open-label trials, case series, and case reports. CONCLUSION: Oral antidepressants should be considered in patients with chronic pruritus that is unresponsive to topical treatment and oral antihistamines, particularly in patients with uremic pruritus, cholestatic pruritus, or paraneoplastic pruritus. More evidence based on randomized controlled trials is required. PMID- 29033249 TI - Obesity and risk for incident rosacea in US women. AB - BACKGROUND: The relationship between obesity and rosacea is poorly understood. OBJECTIVE: To conduct the first cohort study to determine the association between obesity and risk for incident rosacea. METHODS: A total of 89,886 participants were included from the Nurses' Health Study II (1991-2005). Information on history of clinician-diagnosed rosacea and year of diagnosis was collected in 2005. Information on obesity was collected biennially during follow-up. RESULTS: Over 14 years of follow-up, we identified 5249 incident cases of rosacea. The risk for rosacea was elevated for those with increased body mass index (BMI, Ptrend < .0001). Compared with a BMI of 21.0-22.9 kg/m2, the hazard ratio of rosacea was 1.48 (95% confidence interval 1.33-1.64) for BMI >= 35.0. There was a trend toward an increased risk for rosacea among participants who had gained weight after age 18 years (Ptrend < .0001), with a hazard ratio of 1.04 (95% confidence interval 1.03-1.05) per 10-lb weight gain. We also observed significantly increased risk for rosacea associated with higher waist circumference and hip circumference (Ptrend < .0001), and the associations appeared to be independent of BMI. LIMITATIONS: This epidemiologic study did not explore underlying mechanisms of the association. CONCLUSIONS: Measures of obesity were significantly associated with an increased risk for incident rosacea. PMID- 29033251 TI - Facilitating electroconvulsive therapy seizure induction: Lower pulse frequency or longer stimulus duration? PMID- 29033252 TI - Impact of prior ICU experience on ICU patient family members' psychological distress: A descriptive study. AB - OBJECTIVE: To determine if current levels of anxiety, depression and acute stress disorder symptoms differ significantly among family members of intensive-care unit patients depending upon previous intensive-care experience. RESEARCH DESIGN: This study used a prospective, descriptive study design. SETTING: Family members (N=127) from patients admitted within a 72-hour timeframe to the medical, surgical, cardiac and neurological intensive care units were recruited from waiting rooms at a medium-sized community hospital in the Southeastern United States. MAIN OUTCOME MEASURES: Participants completed the Hospital Anxiety and Depression Scale, the Impact of Events Scale-Revised, the Acute Stress Disorder Scale and a demographic questionnaire. RESULTS: A multivariate analysis revealed that family members of intensive-care-unit patients with a prior intensive-care experience within the past two years (n=56) were significantly more likely to report anxiety, depression and acute stress symptoms, Lambda=0.92, F [4122]=2.70, p=0.034, partial eta2=0.08, observed power=0.74. CONCLUSION: Results of this study show that family members' psychological distress is higher with previous familial or personal intensive-care experience. Nurses need to assess for psychological distress in ICU family members and identify those who could benefit from additional support services provided in collaboration with multidisciplinary support professionals. PMID- 29033250 TI - Propionyl-CoA carboxylase - A review. AB - Propionyl-CoA carboxylase (PCC) is the enzyme which catalyzes the carboxylation of propionyl-CoA to methylmalonyl-CoA and is encoded by the genes PCCA and PCCB to form a hetero-dodecamer. Dysfunction of PCC leads to the inherited metabolic disorder propionic acidemia, which can result in an affected individual presenting with metabolic acidosis, hyperammonemia, lethargy, vomiting and sometimes coma and death if not treated. Individuals with propionic acidemia also have a number of long term complications resulting from the dysfunction of the PCC enzyme. Here we present an overview of the current knowledge about the structure and function of PCC. We review an updated list of human variants which are published and provide an overview of the disease. PMID- 29033255 TI - How Do Voice Perceptual Changes Predict Acoustic Parameters in Persian Voice Patients? AB - INTRODUCTION: Perceptual and acoustic analyses are essential tools that help voice therapists comprehensively assess voice quality. While perceptual evaluations are subjective and are influenced by external and culturally driven factors, acoustic analysis is an objective and reliable means of evaluating voice. The goals of this study were (1) to determine which acoustic parameters were predicted by perceptual voice quality and (2) to assess the effect of a short period of training on the reliability of perceptual voice analyses for Persian speakers. METHOD: This was a cross-sectional study. Subjects were 20 patients with various voice disorders. Voice samples were obtained during text reading and /a/ prolongation. Fifteen expert voice clinicians completed perceptual evaluations on voice samples using the Grade, Roughness, Breathiness, Asthenia, and Strain scale. We repeated this process after a short period of perceptual voice evaluation training. Acoustic analysis was completed using the Praat program. We used the intraclass correlation coefficient (ICC) for reliability measurement of the perceptual evaluation results and ordinal regression procedures to analyze all data. Significance level was set at P < 0.05. RESULTS: Both intrarater and interrater reliability increased after training, for all five parameters. The ICC for grade increased to 0.95 after training. Grade and roughness significantly predicted fundamental frequency (F0) (P = 0.021 and P = 0.030, respectively) and harmonic-to-noise ratio (HNR) (P = 0.019 and P = 0.016, respectively). Breathiness significantly predicted shimmer (P = 0.013). CONCLUSION: Training had a positive effect and increased the reliability of perceptual voice evaluation. For Persian listeners, changes in F0, increases in HNR, and shimmer were perceptually associated with poor voice quality. PMID- 29033253 TI - Multi-criterial patient positioning based on dose recalculation on scatter corrected CBCT images. AB - BACKGROUND AND PURPOSE: Our aim was to evaluate the feasibility and potential advantages of dose guided patient positioning based on dose recalculation on scatter corrected cone beam computed tomography (CBCT) image data. MATERIAL AND METHODS: A scatter correction approach has been employed to enable dose calculations on CBCT images. A recently proposed tool for interactive multicriterial dose-guided patient positioning which uses interpolation between pre-calculated sample doses has been utilized. The workflow was retrospectively evaluated for two head and neck patients with a total of 39 CBCTs. Dose-volume histogram (DVH) parameters were compared to rigid image registration based isocenter corrections (clinical scenario). RESULTS: The accuracy of the dose interpolation was found sufficient, facilitating the implementation of dose guided patient positioning. Compared to the clinical scenario, the mean dose to the parotid glands could be improved for 2 out of 5 fractions for the first patient while other parameters were preserved. For the second patient, the mean coverage over all fractions of the high dose PTV could be improved by 4%. For this patient, coverage improvements had to be traded against organ at risk (OAR) doses within their clinical tolerance limits. CONCLUSIONS: Dose guided patient positioning using in-room CBCT data is feasible and offers increased control over target coverage and doses to OARs. PMID- 29033254 TI - Nodal areas of potential geographic error in adjuvant radiotherapy for biliary tract cancer. AB - PURPOSE: To determine the areas of potential geographic error in adjuvant radiotherapy (RT) for biliary-tract cancer (BTC) by comparing pathological surgical data on the pattern of nodal spread with the extent of elective nodal CTV used in published RT studies in this setting. MATERIAL/METHODS: A literature search was performed to select articles on: 1/adjuvant RT for BTC, that provided information on the lymph node stations (LNS) included in the CTV; 2/the pathological-surgical data on the patterns of nodal involvement/recurrence in BTC. Risk of nodal involvement/recurrence and frequency of inclusion in the CTV in RT studies for each of the LNS were compared to determine the areas of potential geographic misses and unnecessary irradiation, separately for intrahepatic cholangiocarcinoma (IHC), extrahepatic cholangiocarcinoma (EHC) and gallbladder-cancer (GBC). RESULTS: Areas of potential geographic misses include: for right IHC: paraaortic and superior mesenteric artery (SMA) LNS; for left or hilar IHC: left gastric, lesser gastric curvature, paraaortic, and SMA LNS; for proximal EHC: paraaortic LNS; for middle EHC: paraaortic and SMA LNS; for distal EHC: paraaortic, SMA, and anterior pancreatico-duodenal LNS; for GBC: paraaortic, SMA, and posterior pancreatico-duodenal LNS. Celiac-LNS is unnecessarily irradiated for middle/distal EHC. CONCLUSIONS: In view of discrepancies between pathological-surgical data and the CTVs used in common practice, there is an obvious need for international consensus guidelines. PMID- 29033256 TI - Acoustic Analysis of Normal Voice Patterns in Pakistani Adults. AB - This study was designed to find out normative acoustic measures of adults in Pakistan. Age and gender differences in these parameters were also studied. The study variables include fundamental frequency, absolute jitter, relative jitter, relative average perturbation, 5-point period perturbation quotient perturbation quotient, jitter average absolute difference between consecutive periods, divided by the average period, shimmer local, shimmer decibel, three-point amplitude perturbation quotient, five-point amplitude perturbation quotient, average absolute difference of consecutive differences between the consecutive periods' amplitudes, and harmonics-to-noise ratio. Participants (N = 71; men = 34; women = 37) were recruited through two-stage sampling; convenience and purposive sampling. Participants were selected from students, staff, and faculty of the University of the Punjab, caretakers of the clients coming for clinical services, and researchers' friends, family, and acquaintances. Gender groups were further divided into three subgroups based on the age bands of 21-30, 31-40, and 41-50 years. After screening for health issues, the voice samples were recorded in a sound-proof acoustic laboratory by using a stand-held microphone and Praat software. Praat was also used for voice analyses. Means and standard deviations were conducted for the participants. Age and gender differences were investigated by using the two-way analysis of variance. Normative values were also measured for men and women between the age bracket of 21 and 50 years. Age differences were not significant for any variable. Gender differences were significant in fundamental frequency, absolute jitter, relative jitter, jitter period perturbation quotient, shimmer five-point amplitude perturbation quotient, and harmonics-to-noise ratio. The interaction between age and gender was significant in all the jitter measures. The interaction showed an increase in all these measures between the ages of 31 and 40 years and a decrease between the ages of 41 and 50 years in women, whereas men showed a reverse effect both in the age ranges of 31-40 and 41-50 years. PMID- 29033257 TI - Chromogranin A is not a biomarker of mastocytosis. PMID- 29033258 TI - Persistent tryptase elevation in a patient with Gaucher disease. PMID- 29033259 TI - Comment on: evaluating the feasibility of phrenoesophagopexy during hiatal hernia repair in sleeve gastrectomy patients. PMID- 29033260 TI - Predicting microRNA biological functions based on genes discriminant analysis. AB - Although thousands of microRNAs (miRNAs) have been identified in recent experimental efforts, it remains a challenge to explore their specific biological functions through molecular biological experiments. Since those members from same family share same or similar biological functions, classifying new miRNAs into their corresponding families will be helpful for their further functional analysis. In this study, we initially built a vector space by characterizing the features from miRNA sequences and structures according to their miRBase family organizations. Then we further assigned miRNAs into its specific miRNA families by developing a novel genes discriminant analysis (GDA) approach in this study. As can be seen from the results of new families from GDA, in each of these new families, there was a high degree of similarity among all members of nucleotide sequences. At the same time, we employed 10-fold cross-validation machine learning to achieve the accuracy rates of 68.68%, 80.74%, and 83.65% respectively for the original miRNA families with no less than two, three, and four members. The encouraging results suggested that the proposed GDA could not only provide a support in identifying new miRNAs' families, but also contributing to predicting their biological functions. PMID- 29033261 TI - Erratum to 'Limitations and opportunities for immune checkpoint inhibitors in pediatric malignancies' [Cancer Treat. Rev. 58C (2017) 22-33]. PMID- 29033262 TI - Primary stability of different plate positions and the role of bone substitute in open wedge high tibial osteotomy. AB - BACKGROUND: The purpose of this study was to compare the mechanical fixation strengths of anteromedial and medial plate positions in osteotomy, and clarify the effects of bone substitute placement into the osteotomy site. METHODS: Twenty eight sawbone tibia models were used. Four different models were prepared: Group A, the osteotomy site was open and the plate position was anteromedial; Group B, bone substitutes were inserted into the osteotomy site and the plate position was anteromedial; Group C, the osteotomy site was open and the plate position was medial; and Group D, bone substitutes were inserted into the osteotomy site and the plate position was medial. The loading condition ranged from 0 to 800N and one hertz cycles were applied. Changes of the tibial posterior slope angle (TPS), stress on the plate and lateral hinge were measured. RESULTS: The changes in the TPS and the stress on the plate were significantly larger in Group A than in Group C. These were significantly larger in Group A than in Group B, and in Group C than in Group D. There was no significant difference between Group B and Group D, and no significant difference between knee flexion angles of 0 degrees and 10 degrees . Stress on the lateral hinge was significantly smaller when bone substitute was used. CONCLUSIONS: A medial plate position was biomechanically superior to an anteromedial position if bone substitute was not used. Bone substitute distributed the stress concentration around the osteotomy gap and prevented an increase in TPS angle regardless of the plate position. PMID- 29033263 TI - Persistent extra-axial post-surgical collections and Propionibacterium acnes infection. Presentation of two cases and literature review. AB - OBJECTIVES: It is common to observe the persistence of extra-axial collections after craniotomies. Most of these disappear in weeks or months but some remain. The onset of focal symptoms or the growth of these persistent collections months or years after surgery may indicate the presence of a chronic and latent infection by germs of low virulence such as Propionibacterium acnes (P. acnes). METHODS: We present two clinical cases with persistent extra-axial collections, which required surgery years after diagnosis, in which P. acnes was isolated as an aetiological agent and we reviewed the literature published in this regard. RESULTS: These are two patients who, following surgical procedures (decompressive craniectomy for severe TBI and craniotomy for right parietal meningioma) and extra-axial collections were kept, which were monitored over time and then were infected and required emergency evacuation. In these collections P. acnes grew as a causal agent and required targeted antibiotics. CONCLUSIONS: We must consider P. acnes as an infectious agent of post-surgical collections of long evolution. Atypical presentation and radiological changes may be helpful in diagnosis. PMID- 29033264 TI - Editor's Note. PMID- 29033265 TI - Universal coverage for palliative care in respiratory disease and critical care. PMID- 29033266 TI - Mortality from chronic respiratory diseases varies widely in USA. PMID- 29033267 TI - Palliative care in interstitial lung disease: living well. AB - Progressive fibrotic interstitial lung diseases (ILDs) are characterised by major reductions in quality of life and survival and have similarities to certain malignancies. However, palliative care expertise is conspicuously inaccessible to many patients with ILD. Unmet patient and caregiver needs include effective pharmacological and psychosocial interventions to improve quality of life throughout the disease course, sensitive advanced care planning, and timely patient-centred end-of-life care. The incorrect perception that palliative care is synonymous with end-of-life care, with no role earlier in the course of ILD, has created a culture of neglect. Interventions that aim to improve life expectancy are often prioritised without rigorous assessment of the individual's health and psychosocial needs, thereby inadvertently reducing quality of life. As in malignant disorders, radical interventions to slow disease progression and palliative measures to improve quality of life should both be prioritised. Efficient patient-centred models of palliative care must be validated, taking into account religious and cultural differences, as well as variability of resources. Effective implementation of palliative care for ILD will require multidisciplinary participation from clinicians, specialist nurses, psychologists, social workers, and, in some countries, non-governmental faith and community-based organisations with access to palliative care expertise. PMID- 29033268 TI - Aiming for zero tuberculosis transmission in low-burden countries. PMID- 29033269 TI - Outcomes of functional treatment versus open reduction and internal fixation of condylar mandibular fracture with articular impact: A retrospective study of 83 adults. AB - INTRODUCTION: The treatment of fractures in the mandibular condylar process remains controversial. The aim of this study was to assess the outcomes of isolated functional treatment versus open reduction and internal fixation (ORIF) of mandibular condylar fracture with articular impact based on clinical and radiological criteria. MATERIALS AND METHODS: Eighty-three patients with a mandibular condylar fracture with articular impact were included in this retrospective study. They were divided according to Loukota, Spiessl and Schroll, Mercier and Rasse, Neff, and Hlawitschka classifications. Two groups were created: operated patients (operated) and non-operated patients (non-operated). Occlusal and functional features were evaluated using clinical measurements at 1, 3, 6, and 12 months after the treatment as well as radiological measurements performed preoperatively, 6 weeks later, and at the end of the follow-up. RESULTS: A male predominance was observed in the data (69.9%, P<0.0001). Isolated functional treatment was applied in 55 patients (66.26%). Twenty-eight patients (33.7%) were operated upon using a pre-auricular or modified Risdon's approach. Maximal mouth opening (MMO) was lesser in "operated" group compared to "non operated" group until 6 months (25.75mm vs 31.96mm, 34.76mm vs 37.95mm, 38.06mm vs 41.87mm respectively 1, 3 and, 6 months, P<0.05). Results were satisfactory 1 year after treatment (41.29mm vs 45.22mm, P>0.05). There was no difference concerning temporo-mandibular joint dysfunctions between operated and non operated patients. For unilateral fractures, the loss of height of the ramus was significantly higher in operated patients initially compared to "non-operated" group (P=0.0137). After surgical correction, there was no difference between the two sides of mandible. At the end of the follow-up, the there was no difference between operated and non-operated ramus (P=0.1304 and 0.6420). CONCLUSION: The present study showed that a properly followed isolated functional treatment provided similar clinical results to ORIF for mandibular condylar fractures with articular impact. Surgical treatment should be preferred when the loss of height of the ramus is severe to restore the ramus height since adult condylar remodeling is less efficient than in children. PMID- 29033270 TI - A survey of contact lens-related complications in a tertiary hospital in China. AB - PURPOSE: To describe the type of complications related to contact lens (CL) wear in a tertiary hospital in XX, China. METHODS: A retrospective study of 141 patients who complained discomfort after wearing contact lens on an outpatient basis of XX Hospital were conducted from the January 2012 to December 2015. The data included patients' demographics, lens type, history, slit-lamp examination, reports of corneal scrapings, culture, and examination of in vivo confocal microscopy. Binary logistic regression was used to analyse the possible factors which were associated with more severe corneal complications and superficial punctuate keratitis (SPK). RESULTS: About 86.52% were female and 13.48% were male, the age varied between 12 and 56 years old. Of the 141 patients, 82.27% were soft CL wearers, 2.84% were rigid gas permeable lens (RGP) wearers, and 14.89% patients used overnight orthokeratology. The most common complication was dry eye (36.88%), followed by SPK (36.17%) during these cases. Blepharitis and meibomian gland dysfunction (MGD) were noted in 31.91% of cases. Microbial keratitis was seen in 15 patients including 7 cases of Acanthamoeba keratitis. Age was a significant factor to be a case of corneal infection or inflammation [Exp (B)was 0.918, p=0.030], MGD and blepharitis was found to be significantly associated with being a case of SPK [Exp(B)was2.276, p=0.047]. CONCLUSIONS: The commonest complication was dry eye in this study, followed by SPK. Lid margin and meibomain gland should be paid attention to before contact lens prescription. Younger CL wearers need follow-up examinations. PMID- 29033271 TI - Surgical Education Module Improves Operative Proficiency in Endoscopic Carpal Tunnel Release: A Blinded Randomized Controlled Trial of Trainees. AB - OBJECTIVE: The purpose of this study is to evaluate whether an interactive endoscopic carpal tunnel release (ECTR) surgical education module can improve knowledge of surgical indications and improve procedural competency. DESIGN: An ECTR education module was developed and trainees at various level of training were enrolled and randomized to surgical module and nonmodule (control) groups. Subjects were instructed that they would be the primary surgeon performing an ECTR. A written assessment was administered before and after module completion or independent case preparation to test comprehension of the procedure. The senior author evaluated each subject's intraoperative performance using a 5-point scoring system. Statistical analysis was performed using chi-square and paired t tests. SETTING: This study took place at a tertiary care hospital at the University of Wisconsin. RESULTS: In all, 30 subjects were tested (15 surgical module and 15 nonmodule). There were no differences in prepreparation test scores between groups. Postpreparation test scores following use of the module were significantly higher compared to the nonmodule group. The average operation performance scores for the surgical module group and nonmodule group were 96% and 82%, respectively. The surgical module group performed significantly better on all operative steps except for dressing application. Surgical module subjects without prior ECTR experience (n = 7) had operative scores that were significantly higher than those for nonmodule subjects without previous ECTR experience (n = 8) (95% vs. 75%). There was no difference in operative scores between surgical module subjects with no prior experience (n = 7) and nonmodule subjects who had performed at least 1 prior case (n = 7) (95% vs. 89%). CONCLUSIONS: The use of an ECTR surgical education module demonstrates a significant benefit in ECTR-naive subjects. When compared to subjects with previous ECTR experience, ECTR-naive subjects trained using the surgical module demonstrate better familiarity with the equipment and equivalent performance of the procedure. PMID- 29033272 TI - Graduating Surgical Residents Lack Competence in Critical Care Ultrasound. AB - OBJECTIVE: Ultrasound provides accessible imaging for bedside diagnostics and procedural guidance, but may lead to misdiagnosis in untrained users. The main objective of this study was to determine observed and self-perceived competence with critical care ultrasound in graduated general surgery residents. DESIGN: The design of this study was a retrospective review. Ultrasound training program records were reviewed for number of prior ultrasound examinations performed, self perceived competence, observed competence on faculty examinations, and intended future use of individual critical care ultrasound examinations. SETTING: This study was undertaken at the R Adams Cowley Shock Trauma Center, which is a tertiary care center in Baltimore, MD. PARTICIPANTS: Graduated general surgery residents were identified at the beginning of their surgical critical care fellowship at our institution, and were included if they participated in our critical care ultrasound education program. Fifteen graduated general surgery residents were included. RESULTS: Prior ultrasound experience ranged from 100% for focused assessment of sonography for trauma (FAST) to 13.3% for advanced cardiac assessment. Self-perceived competence ranged from 46.7% with FAST to 0% for advanced cardiac assessment. Observed competence ranged from 20.0% for FAST examinations to 0% for basic cardiac assessment, advanced cardiac assessment, and inferior vena cava (IVC) assessment. All participants intended to use ultrasound in the future for FAST, pneumothorax detection and basic cardiac assessment, and 86.7% for IVC assessment and advanced cardiac assessment. Of participants with self-perceived competence, 28.6% had observed competence with FAST, 0% with IVC assessment, and 100% with pneumothorax detection. CONCLUSIONS: Graduated general surgery residents are not competent in multiple critical care ultrasound examinations despite universally planning to use critical care ultrasound in future practice. Current exposure to ultrasound in residency may give a false sense of competency with ultrasound use. A standardized ultrasound curriculum is an urgent need for general surgery training. PMID- 29033273 TI - Current Techniques of Teaching and Learning in Bariatric Surgical Procedures: A Systematic Review. AB - OBJECTIVE: The gastric sleeve resection and gastric bypass are the 2 most commonly performed bariatric procedures. This article provides an overview of current teaching and learning methods of those techniques in resident and fellow training. DESIGN: A database search was performed on Pubmed, Embase, and the Education Resources Information Center (ERIC) to identify the methods used to provide training in bariatric surgery worldwide. After exclusion based on titles and abstracts, full texts of the selected articles were assessed. Included articles were reviewed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system. RESULTS: In total, 2442 titles were identified and 14 full text articles met inclusion criteria. Four publications described an ex vivo training course, and 6 focused on at least 1 step of the gastric bypass procedure. Two randomized controlled trials (RCT) provided high quality evidence on training aspects. Surgical coaching caused significant improvement of Bariatric Objective Structured Assessment of Technical Skills (BOSATS) scores (3.60 vs. 3.90, p = 0.017) and reduction of technical errors (18 vs. 10, p = 0.003). A preoperative warm-up increased global rating scales (GRS) scores on depth perception (p = 0.02), bimanual dexterity (p = 0.01), and efficiency of movements (p = 0.03). CONCLUSION: Stepwise education, surgical coaching, warming up, Internet-based knowledge modules, and ex vivo training courses are effective in relation to bariatric surgical training of residents and fellows, possibly shortening their learning curves. PMID- 29033274 TI - Percutaneous Treatment of Follow-up Lesions After Atrial Switch in Patients With Transposition of the Great Arteries. PMID- 29033275 TI - Mechanisms of humoral immune response against Pseudomonas aeruginosa biofilm infection in cystic fibrosis. AB - P. aeruginosa chronic lung infection is the major cause of morbidity and mortality in patients with cystic fibrosis (CF), and is characterized by a biofilm mode of growth, increased levels of specific IgG antibodies and immune complex formation. However, despite being designed to combat this infection, such elevated humoral response is not associated with clinical improvement, pointing to a lack of anti-pseudomonas effectiveness. The mode of action of specific antibodies, as well as their structural features, and even the background involving B-cell production, stimulation and differentiation into antibody producing cells in the CF airways are poorly understood. Thus, the aim of this review is to discuss studies that have addressed the intrinsic features of the humoral immune response and provide new insights regarding its insufficiency in the CF context. PMID- 29033276 TI - Editorial overview: Plant synthetic and systems biology. PMID- 29033277 TI - Corrigendum to "22nd International Congress of the World Muscle Society, Saint Malo, France, 3rd-7th October 2017" [Neuromuscular Disorders 27S2 (2017) S51 S270]. PMID- 29033278 TI - Different profiles of upper limb function in four types of neuromuscular disorders. AB - The aim of this research was to study impairments, activity limitations and participation restrictions due to upper limb involvement in people with four different types of neuromuscular disorders (NMD) - FacioScapuloHumeral Dystrophy (FSHD), Limb-Girdle Muscular Dystrophy (LGMD), Spinal Muscular Atrophy (SMA) and Duchenne Muscular Dystrophy (DMD) - and to investigate whether common or different profiles could be identified. Total of 267 respondents with NMD from the Netherlands answered a set of questionnaires covering upper limb impairments (pain and stiffness), activity limitations and participation restrictions. Pain was most often reported by persons with FSHD. Problems in the FSHD group were mainly characterized by relatively high scores for pain and stiffness and low scores for activity limitations. People with LGMD reported also low scores for activity limitations. Conversely, people with SMA and DMD experienced in general relatively low scores for pain and stiffness and high scores for activity limitations. Although people with FSHD and LGMD had relatively few activity limitations, all NMD groups experienced restrictions when participating in social activities. Our results indicate specific profiles of upper limb function in different types of NMD. While the profile observed in persons with FSHD seems to reflect overuse, the profile seen in persons with DMD and SMA is suspicious of disuse, each requiring a specific rehabilitation strategy. PMID- 29033279 TI - Guided self-help cognitive-behaviour Intervention for VoicEs (GiVE): Results from a pilot randomised controlled trial in a transdiagnostic sample. AB - BACKGROUND: Few patients have access to cognitive behaviour therapy for psychosis (CBTp) even though at least 16 sessions of CBTp is recommended in treatment guidelines. Briefer CBTp could improve access as the same number of therapists could see more patients. In addition, focusing on single psychotic symptoms, such as auditory hallucinations ('voices'), rather than on psychosis more broadly, may yield greater benefits. METHOD: This pilot RCT recruited 28 participants (with a range of diagnoses) from NHS mental health services who were distressed by hearing voices. The study compared an 8-session guided self-help CBT intervention for distressing voices with a wait-list control. Data were collected at baseline and at 12weeks with post-therapy assessments conducted blind to allocation. Voice impact was the pre-determined primary outcome. Secondary outcomes were depression, anxiety, wellbeing and recovery. Mechanism measures were self-esteem, beliefs about self, beliefs about voices and voice-relating. RESULTS: Recruitment and retention was feasible with low study (3.6%) and therapy (14.3%) dropout. There were large, statistically significant between-group effects on the primary outcome of voice-impact (d=1.78; 95% CIs: 0.86-2.70), which exceeded the minimum clinically important difference. Large, statistically significant effects were found on a number of secondary and mechanism measures. CONCLUSIONS: Large effects on the pre-determined primary outcome of voice-impact are encouraging, and criteria for progressing to a definitive trial are met. Significant between-group effects on measures of self-esteem, negative beliefs about self and beliefs about voice omnipotence are consistent with these being mechanisms of change and this requires testing in a future trial. PMID- 29033280 TI - The contribution of the contingent negative variation (CNV) to goal maintenance. AB - The dot pattern expectancy (DPX) task has been strongly recommended as a measure of goal maintenance, which is impaired in schizophrenia patients. The current event-related potential (ERP) study was designed mainly to identify the ERP component that could represent the goal maintenance process of the DPX task as indexed by the error rate of the BX vs. AY (EBX-AY). We focused our analysis on the cue-phased contingent negative variation (CNV) and found a significant association between the EBX-AY and the amplitude of the difference wave of cue B vs. cue A (CNVB-A) (for CP3, beta=-0.262, P=0.001; for CPZ, beta=-0.184, P=0.025; for CP4, beta=-0.201, P=0.015). Lower EBX-AY (better goal maintenance) was correlated with larger CNVB-A. Further analysis found a significant association between the error rate of AY condition (EAY) and the amplitude of CNVA (for CP3, beta=-0.180, P=0.029; for CPZ, beta=-0.184, P=0.024; for CP4, beta=-0.208, P=0.011) and a significant association between the error rate of BX condition (EBX) and the amplitude of CNVB-A (for CP3, beta=-0.198, P=0.016; for CPZ, beta= 0.165, P=0.043; for CP4, beta=-0.151, P=0.066), but not the amplitude of the CNVB (all P>0.05). All these results together suggested that the cue-phased CNV could be used to represent the goal maintenance process. Future research needs to verify these results with schizophrenia patients. PMID- 29033281 TI - Sedentary behaviour, physical activity, cardiorespiratory fitness and cardiometabolic risk in psychosis: The PsychiActive project. AB - This study aimed to explore the possible independent associations of sedentary behaviour (SB), physical activity (PA), and cardiorespiratory fitness (CRF) with clustered (CCRS) and individual cardiometabolic risk (waist circumference [waist], systolic/diastolic blood pressure, triglycerides, high-density lipoprotein-cholesterol, and fasting blood glucose) in patients with psychosis. In 43 outpatients with psychosis (mean age+/-SD: 42.3+/-8.5years, 86% men), SB and light, moderate-to-vigorous, and total PA were measured with the SenseWear Pro3 Armband, and CRF with the 6-minute walking test. Multiple linear regression models adjusted for multiple confounders were applied. High SB, low PA and low CRF levels were associated with an unfavourable cardiometabolic risk profile (increased presence of metabolic syndrome and number of cardiometabolic abnormalities, as well as worse values and elevated presence of abnormalities for all individual cardiometabolic risk factors). SB was associated with CCRS, number of cardiometabolic abnormalities, waist, and fasting blood glucose (all p<0.05). After adjusting for PA and CRF, waist and fasting blood glucose remained significant. Light PA was associated with waist, moderate-to-vigorous PA with CCRS, and total PA with CCRS and waist (all p<0.05). These results became non significant after adjusting for SB and CRF. CRF was associated with CCRS, waist, and systolic blood pressure (all p<0.05). The associations with CCRS and waist remained significant after adjusting for SB and PA. Together, these results suggest the importance of considering SB and CRF, regardless PA, in the prevention and treatment of cardiometabolic disorders among patients with psychosis. PMID- 29033282 TI - Character strengths of individuals with first episode psychosis in Individual Resiliency Training. AB - Positive psychology interventions that integrate a person's strengths into treatment result in improvements in life satisfaction and well-being. Character strengths classified within six core virtues (wisdom/knowledge, courage, humanity, justice, temperance, and transcendence) have been the subject of substantial research. Though a number of studies have been conducted in the general population, little is known about the character strengths of individuals with first episode psychosis (FEP). Moreover, positive psychology principles, in particular a focus on personal strengths, have been increasingly integrated into FEP treatment and was a core component of Individual Resiliency Training (IRT), the individual therapy component of NAVIGATE tested in the Recovery After an Initial Schizophrenia Episode Early Treatment Program. As such, the present study offers an examination of character strengths among 105 FEP clients in specialized early intervention treatment. The present study included two primary aims: 1) to conduct a descriptive analysis of character strengths of FEP individuals and 2) to examine exploratory associations between character strengths and changes in symptomatic and recovery variables over six months. Results revealed that the most commonly identified strengths were: Honesty, Authenticity, and Genuineness (40.95%), Kindness and generosity (37.14%), Fairness, equity, and justice (29.52%), Gratitude (29.52%), and Humor and playfulness (29.52%). Three virtues (Humanity, Justice, and Transcendence) were significantly associated with improvements in symptoms, psychological well-being, and interpersonal relations over six months. Overall, the present study offers a glimpse into how persons with FEP view their strengths and how certain clusters of strengths are related to important outcomes. PMID- 29033284 TI - Comments on "Therapy with mesenchymal stromal cells or conditioned medium reverse cardiac alterations in a high-fat diet-induced obesity model". PMID- 29033283 TI - Developmental trajectory of mismatch negativity and visual event-related potentials in healthy controls: Implications for neurodevelopmental vs. neurodegenerative models of schizophrenia. AB - Sensory processing deficits are core features of schizophrenia, reflected in impaired generation of event-related potential (ERP) measures such as auditory mismatch negativity (MMN) and visual P1. To understand the potential time course of development of deficits in schizophrenia, we obtained MMN to unattended duration, intensity and frequency deviants, and visual P1 to attended LSF stimuli, in 43 healthy individuals ages 6 to 25years (mean 17), and compared results to data from 30 adult schizophrenia patients (mean age 38). We analyzed "time-domain" measures of amplitude and latency, and event-related spectral perturbation (ERSP, "time-frequency") to evaluate underlying neurophysiological mechanisms. Duration and intensity MMN amplitudes increased from childhood to late adolescence, while frequency MMN reached maximum amplitude during early development. As reported previously, in ERSP analyses, MMN activity corresponded primarily to theta-band (4-7Hz) activity, while responses to standards occurred primarily in alpha (8-12Hz) across age groups. Both deviant-induced theta and standard-induced alpha activity declined significantly with age for all deviant types. Likewise, visual P1 also showed an amplitude decline over development, reflecting a reduction in both evoked power and ITC. While MMN "difference" waveform ERP data suggest failure of maturation in schizophrenia, MMN ERSP analyses instead support a neurodegenerative process, as these isolate responses to deviants and standards, showing large low-frequency evoked power for both in children. Neurodegenerative processes are also supported by large visual P1 amplitudes and large low-frequency evoked power in children, in contrast with adult schizophrenia. Sensory processing deficits in schizophrenia may be related to accelerated synaptic pruning. PMID- 29033285 TI - Antibiotic prophylaxis in breast reduction surgery: A different approach. PMID- 29033286 TI - Botulinum Toxins A and E Inflict Dynamic Destabilization on t-SNARE to Impair SNARE Assembly and Membrane Fusion. AB - Botulinum toxins (BoNTs) A and E block neurotransmitter release by specifically cleaving the C- terminal ends of SNAP-25, a plasma membrane SNARE protein. Here, we find that SNAP-25A and E, the cleavage products of BoNT A and E, respectively, terminate membrane fusion via completely different mechanisms. Combined studies of single-molecule FRET and single-vesicle fusion assays reveal that SNAP-25E is incapable of supporting SNARE pairing and thus, vesicle docking. In contrast, SNAP-25A facilitates robust SNARE pairing and vesicle docking with somewhat reduced SNARE zippering, which leads to severe impairment of fusion pore opening. The electron paramagnetic resonance results show that the discrepancy between SNAP-25A and E might stem from the extent of the dynamic destabilization of the t SNARE core at the N-terminal half, which plays a pivotal role in nucleating SNARE complex formation. Thus, the results provide insights into the structure/dynamics based mechanism by which BoNT A and E impair membrane fusion. PMID- 29033287 TI - Rotamer Libraries for the High-Resolution Design of beta-Amino Acid Foldamers. AB - beta-Amino acids offer attractive opportunities to develop biologically active peptidomimetics, either employed alone or in conjunction with natural alpha-amino acids. Owing to their potential for unique conformational preferences that deviate considerably from alpha-peptide geometries, beta-amino acids greatly expand the possible chemistries and physical properties available to polyamide foldamers. Complete in silico support for designing new molecules incorporating non-natural amino acids typically requires representing their side-chain conformations as sets of discrete rotamers for model refinement and sequence optimization. Such rotamer libraries are key components of several state-of-the art design frameworks. Here we report the development, incorporation in to the Rosetta macromolecular modeling suite, and validation of rotamer libraries for beta3-amino acids. PMID- 29033290 TI - Nonvascularized Cartilage Grafts Versus Vascularized Cartilage Flaps: Comparison of Cartilage Quality 6 Months After Transfer. AB - PURPOSE: Subchondral perfusion of osteochondral grafts has been shown to be important in preventing long-term cartilage degeneration. In carpal reconstruction, subchondral perfusion from the graft bed is limited. This study's purpose was to compare the histological characteristics of cartilage in osteochondral grafts supported by synovial imbibition alone to cartilage of vascularized osteochondral flaps that have both synovial and vascular pedicle perfusion. METHODS: Two adjacent osteochondral segments were harvested on the medial femoral trochlea in domestic 6- to 8-month-old pigs. Each segment measured approximately 12 mm * 15 mm * 17 mm. One segment was maintained on the descending geniculate artery vascular pedicle. The adjacent segment was separated from the pedicle to serve as a nonvascularized graft. A thin layer of methylmethacrylate cement was used to line the harvest site defect to prevent vascular ingrowth to the subsequently replaced specimens. The pigs were maintained on a high-calorie feed and returned to ambulation and full weight-bearing on the surgical legs. The animals were sacrificed after 6 months and the specimens were reharvested, sectioned, and examined. The cartilage was graded by 2 pathologists blinded to the origin of specimens as vascularized flaps or nonvascularized grafts. RESULTS: All specimens were assigned scores utilizing the International Cartilage Repair Society grading system. Scoring for chondrocyte viability, cartilage surface morphology, and cell and matrix appearance was significantly higher in the vascularized osteochondral group than in the graft group. CONCLUSIONS: When deprived of subchondral perfusion from underlying bone, osteochondral vascularized flaps in an intrasynovial environment demonstrate superior cartilage quality and survival compared with nonvascularized grafts. CLINICAL RELEVANCE: In locations in which perfusion from surrounding bone may be limited (ie, proximal scaphoid or proximal lunate reconstruction), articular reconstruction using vascularized osteochondral flaps will yield superior cartilage organization and architecture than nonvascularized osteochondral grafts. The clinical and functional relevance of this finding requires further study. PMID- 29033288 TI - The Therapeutic Antibody LM609 Selectively Inhibits Ligand Binding to Human alphaVbeta3 Integrin via Steric Hindrance. AB - The LM609 antibody specifically recognizes alphaVbeta3 integrin and inhibits angiogenesis, bone resorption, and viral infections in an arginine-glycine aspartate-independent manner. LM609 entered phase II clinical trials for the treatment of several cancers and was also used for alphaVbeta3-targeted radioimmunotherapy. To elucidate the mechanisms of recognition and inhibition of alphaVbeta3 integrin, we solved the structure of the LM609 antigen-binding fragment by X-ray crystallography and determined its binding affinity for alphaVbeta3. Using single-particle electron microscopy, we show that LM609 binds at the interface between the beta-propeller domain of the alphaV chain and the betaI domain of the beta3 chain, near the RGD-binding site, of all observed integrin conformational states. Integrating these data with fluorescence size exclusion chromatography, we demonstrate that LM609 sterically hinders access of large ligands to the RGD-binding pocket, without obstructing it. This work provides a structural framework to expedite future efforts utilizing LM609 as a diagnostic or therapeutic tool. PMID- 29033289 TI - Foldability of a Natural De Novo Evolved Protein. AB - The de novo evolution of protein-coding genes from noncoding DNA is emerging as a source of molecular innovation in biology. Studies of random sequence libraries, however, suggest that young de novo proteins will not fold into compact, specific structures typical of native globular proteins. Here we show that Bsc4, a functional, natural de novo protein encoded by a gene that evolved recently from noncoding DNA in the yeast S. cerevisiae, folds to a partially specific three dimensional structure. Bsc4 forms soluble, compact oligomers with high beta sheet content and a hydrophobic core, and undergoes cooperative, reversible denaturation. Bsc4 lacks a specific quaternary state, however, existing instead as a continuous distribution of oligomer sizes, and binds dyes indicative of amyloid oligomers or molten globules. The combination of native-like and non native-like properties suggests a rudimentary fold that could potentially act as a functional intermediate in the emergence of new folded proteins de novo. PMID- 29033291 TI - Controversies in Poland Syndrome: Alternative Diagnoses in Patients With Congenital Pectoral Muscle Deficiency. AB - PURPOSE: Poland syndrome was first described as a deficiency of the pectoral muscle with ipsilateral symbrachydactyly. Currently, numerous case reports describe variations of Poland syndrome in which pectoral muscle deficiency is often used as the only defining criterion. However, more syndromes can present with pectoral muscle deficiency. The aim of this review is to illustrate the diversity of the phenotypic spectrum of Poland syndrome and to create more awareness for alternative diagnoses in pectoral muscle deficiency. METHODS: A systematic literature search was performed. Articles containing phenotypical descriptions of Poland syndrome were included. Data extraction included number of patients, sex, familial occurrence, and the definition of Poland syndrome used. In addition, hand deformities, thoracic deformities, and other deformities in each patient were recorded. Alternative syndrome diagnoses were identified in patients with a combination of hand, thorax, and other deformities. RESULTS: One hundred-and-thirty-six articles were included, describing 627 patients. Ten different definitions of Poland syndrome were utilized. In 58% of the cases, an upper extremity deformity was found and 43% of the cases had an associated deformity. Classic Poland syndrome was seen in 29%. Fifty-seven percent of the patients with a pectoral malformation, a hand malformation, and another deformity had at least 1feature that matched an alternative syndrome. CONCLUSIONS: Pectoral muscle hypoplasia is not distinctive for Poland syndrome alone but is also present in syndromes with other associated anomalies with a recognized genetic cause. Therefore, in patients with an atypical phenotype, we recommend considering other diagnoses and/or syndromes before diagnosing a patient with Poland syndrome. This can prevent diagnostic and prognostic errors. CLINICAL RELEVANCE: Differentiating Poland syndrome from the alternative diagnoses has serious consequences for the patient and their family in terms of inheritance and possible related anomalies. PMID- 29033292 TI - [Dosimetric verification of MammoSite treatment plans using Monte Carlo simulations and measurements with a 2D ionization chamber array]. AB - The surgical removal of a breast tumour is often followed by postoperative irradiation of the surrounding tissue with a radioactive source (brachytherapy). When performing the MammoSite procedure, a spherical silicone balloon is inserted and filled with a NaCl solution. In a period of about five days in several sessions an iridium-192 source with high activity travels through a catheter into the balloon (afterloading) to irradiate the tumour cells remaining in the cavity. In this study, dose distributions of a MammoSite applicator are investigated based on measurements with a 2D detector array, Monte Carlo simulations and calculations with BrachyVision. The focus is set on the 2D detector array and its possible application in the verification process in 3D brachytherapy treatment planning. The measured dose distributions conform well to the doses of BrachyVision with deviations of less than 5% within the clinically relevant field range. The deviations of the measured and calculated distributions from the simulation results are below 3%. The 2D detector array allows a new verification method for MammoSite treatment plans with sufficient accuracy. Future verifications can be performed without additional Monte Carlo simulations. PMID- 29033293 TI - CT and MRI slice separation evaluation by LabView developed software. AB - The efficient use of Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) equipment necessitates establishing adequate quality-control (QC) procedures. In particular, the accuracy of slice separation, during multislices acquisition, requires scan exploration of phantoms containing test objects. To simplify such procedures, a novel phantom and a computerised LabView-based procedure have been devised, enabling determination the midpoint of full width at half maximum (FWHM) in real time while the distance from the profile midpoint of two progressive images is evaluated and measured. The results were compared with those obtained by processing the same phantom images with commercial software. To validate the proposed methodology the Fisher test was conducted on the resulting data sets. In all cases, there was no statistically significant variation between the commercial procedure and the LabView one, which can be used on any CT and MRI diagnostic devices. PMID- 29033295 TI - Can Multidetector Computed Tomography Rule Out Left Atrial Thrombus in Patients With Atrial Fibrillation? PMID- 29033294 TI - Acetaminophen or Nonsteroidal Anti-Inflammatory Drugs in Acute Musculoskeletal Trauma: A Multicenter, Double-Blind, Randomized, Clinical Trial. AB - STUDY OBJECTIVE: We determine whether pain treatment with acetaminophen was not inferior to nonsteroidal anti-inflammatory drugs or the combination of both in minor musculoskeletal trauma. METHODS: The Paracetamol or NSAIDs in Acute Musculoskeletal Trauma Study was a double-blind, randomized, clinical trial conducted in 2 general practices and 2 emergency departments in the Netherlands. A total of 547 adults, aged 18 years and older, with acute blunt minor musculoskeletal extremity trauma were randomly assigned in a 1:1:1 ratio to acetaminophen 4,000 mg/day, diclofenac 150 mg/day, or acetaminophen 4,000 mg/day+diclofenac 150 mg/day during 3 consecutive days. Patients, health care staff, and outcome assessors were blinded for treatment allocation. Follow-up for each patient was 30 days. Primary outcome measures were between-group differences in mean numeric rating scale (NRS) pain scores in rest and with movement at 90 minutes after initial drug administration compared with baseline pain scores with a predefined noninferiority margin of 0.75 NRS points. Secondary outcomes included NRS pain scores during 3 consecutive days and need for additional analgesia. RESULTS: One hundred eighty-two patients were treated with acetaminophen, 183 with diclofenac, and 182 with combination treatment. Intention to-treat analysis revealed mean NRS reduction in rest -1.23 (95% confidence interval [CI] -1.50 to -0.95) and -1.72 (95% CI -2.01 to -1.44) with movement, both for acetaminophen at 90 minutes compared with baseline. Pairwise comparison in rest with diclofenac showed a difference of -0.027 (97.5% CI -0.45 to 0.39) and -0.052 (97.5% CI -0.46 to 0.36) for combination treatment. With movement, these numbers were -0.20 (97.5% CI -0.64 to 0.23) and -0.39 (97.5% CI -0.80 to 0.018), respectively. All differences were well below the predefined noninferiority margin. CONCLUSION: Pain treatment with acetaminophen was not inferior to that with diclofenac or the combination of acetaminophen and diclofenac in acute minor musculoskeletal extremity trauma, both in rest and with movement. PMID- 29033297 TI - No Easy Way Out: A Case of Physician-Assisted Dying in the Emergency Department. AB - Currently, 1 out of 6 Americans lives within a jurisdiction in which physician assisted dying is legally authorized. In most cases, patients ingest lethal physician-assisted dying medications at home without involvement of emergency medical services (EMS) or the emergency department (ED). However, occasionally the dying process is interrupted as a result of incomplete ingestion or vomiting of medications, confusion about timing of dying trajectory, familial emotional distress, and other variables. A case is presented here of a patient who arrived by ambulance to an urban ED after ingesting physician-assisted dying medication. Stepwise analysis of communication and actions between providers (paramedics, emergency physician, and admitting physician), risk management, and family are described chronologically. This case highlights the significant distress experienced by each party, as well as key challenges and learning points. Guidance is provided to emergency providers about expectations and communication. In states with limited physician-assisted dying experience, many EMS agencies, EDs, and hospitals require comprehensive protocols to handle the complex ethical and psychosocial issues surrounding physician-assisted dying in the ED. PMID- 29033298 TI - Passive smoking and Parkinson's disease in California Teachers. AB - INTRODUCTION: Tobacco smoking is consistently inversely associated with Parkinson's disease (PD) in men and women; recently this has been related to reverse causation, prompting questions as to whether similar patterns exist for passive smoke exposure. We used baseline and follow-up data from the California Teachers Study, a prospective cohort of women, to investigate whether timing, location and cumulative measures of intensity and duration of passive smoke exposure are associated with PD risk. METHODS: Using a nested case-control approach, we included 224 diagnostically validated cases (158 with no history of personal smoking) and selected 3230 age- and race-matched controls (1973 with no history of personal smoking). We estimated odds ratios(ORs) and 95% confidence intervals(CI) by fitting adjusted multivariable unconditional logistic regression models. RESULTS: Among lifelong non-smokers, passive smoke exposure combined across all settings and accumulated over a lifetime was not associated with PD risk (OR = 1.18, 95% CI 0.60, 2.30). Workplace exposure was also not associated with risk. Household exposure during adulthood but not childhood was inversely associated with PD (OR = 0.59, 95% CI 0.40, 0.87). Exposure to passive smoke in other social settings was positively associated with PD (OR = 1.62, 95% CI 1.11, 2.36). These contradictory results may be attributable to chance due to multiple comparisons in subgroup analyses. No pattern emerged to suggest that increasing years of passive smoke exposure, smokiness of the setting, or combined smokiness by exposure years was associated with lower PD risk. CONCLUSION: Results do not convincingly support a protective effect of passive smoking in PD. PMID- 29033296 TI - A Comparison of Headache Treatment in the Emergency Department: Prochlorperazine Versus Ketamine. AB - STUDY OBJECTIVE: Intravenous subdissociative-dose ketamine has been shown to be effective for pain management, but has not been specifically studied for headaches in the emergency department (ED). For this reason, we designed a study to compare standard treatment (prochlorperazine) with ketamine in patients with benign headaches in the ED. METHODS: This study was a multicenter, double-blind, randomized, controlled trial with a convenience sample of patients presenting to the ED with benign headaches. Patients were randomized to receive either prochlorperazine and diphenhydramine or ketamine and ondansetron. Patients' headache severity was measured on a 100-mm visual analog scale (VAS) at 0, 15, 30, 45, and 60 minutes. Nausea, vomiting, anxiety, and the need for rescue medications were also tracked. Patients were contacted at 24 to 48 hours posttreatment to rate their satisfaction and to determine whether they were still experiencing a headache. RESULTS: There were a total of 54 subjects enrolled. Two patients in the ketamine group and one in the prochlorperazine group withdrew because of adverse effects of the medications. In regard to the primary outcome, at 60 minutes, the prochlorperazine group had a mean improvement in VAS pain scores of 63.5 mm compared with 43.5 mm in the ketamine group, corresponding to a between-groups difference of 20.0 mm (95% confidence interval [CI] 2.8 to 37.2 mm) and a P value of .026. At 45 minutes, the prochlorperazine group had a mean improvement in pain scores of 56.1 mm compared with 38.0 mm in the ketamine group, a difference of 18.1 mm (95% CI 1.0 to 35.2 mm). At 24- to 48-hour follow up, the mean satisfaction score was 8.3 of 10 for prochlorperazine and 4.9 of 10 for ketamine, a difference of 3.4 (95% CI 1.2 to 5.6). There was not a statistically significant difference in the percentage of patients who had a headache at follow-up or in other secondary outcomes. CONCLUSION: Prochlorperazine appears to be superior to ketamine for the treatment of benign headaches in the ED. PMID- 29033299 TI - Unpredictable pain timings lead to greater pain when people are highly intolerant of uncertainty. AB - BACKGROUND AND PURPOSE: Many psychological factors are known to influence pain perception. Among them, intolerance of uncertainty (IU) may play a key modulating role in situations where uncertainty prevails, especially uncertainty regarding the timing of painful events. The objective of this study was to explore the impact of individual differences in IU on pain perception during predictable and unpredictable stimulation timings. We hypothesized that people with high IU, as opposed to those with low IU, would perceive more pain when the timing of painful stimulations cannot be predicted, as compared to when they can. METHODS: Twenty (20) healthy adults, aged between 18 and 35 years old, were recruited. Painful sensations were provoked using transcutaneous electrical stimulations of the right sural nerve. By measuring IU (Intolerance of Uncertainty Scale) and subjective pain (verbal numerical rating scale), it was possible to test the relationship between IU and pain perception, by simulating predictable and unpredictable painful experiences. This was done through cued shock interval (CSI) blocks, with either variable timing or fixed timings (long or short time frame). Self-administered questionnaires were also used to measure pain hypervigilance, pain catastrophizing, state anxiety, and trait anxiety. RESULTS: Pearson correlations confirmed the presence of an association (r=0.63) between IU and the change in pain intensity provoked by unpredictable stimulation timings. Importantly, this association was significant only for stimulations provided at long CSIs, indicating that higher IU scores predicted higher pain intensity scores when stimulation timings became unpredictable, and when the cued delay was long. No association was found between pain scores and other psychological variables. CONCLUSIONS: Our results show that IU moderately correlates to the change in pain intensity provoked by unpredictable stimulation timings. High IU scores were associated with a worsening of the subjective pain experience, especially during long delays in an unpredictable situation. These observations suggest that IU could be considered as a psychological variable that is able to influence pain perception in certain situations. IMPLICATIONS: Assessing and addressing IU could be an added value in pain-related therapy, especially in chronic pain. PMID- 29033300 TI - Impact of Synchronous Multiple Primary Malignant Tumors on Newly Diagnosed Hematological Malignancies. AB - BACKGROUND: Hematological malignancies are occasionally observed with synchronous multiple primary malignant tumors (sMPMTs) at diagnosis. We aimed to clarify the impact of sMPMTs on newly diagnosed hematological malignancies and determine the optimal treatment strategies. PATIENTS AND METHODS: We analyzed the outcomes of 649 patients with hematological malignancies, including 19 patients with sMPMTs (2.9%), and compared the outcomes between patients with and without sMPMTs. RESULTS: The overall survival (OS) and disease-free survival (DFS) rates for patients with sMPMTs were 77% and 70%, respectively, at 2 years; these rates were not statistically different from those for patients without sMPMTs (P = .17 and P = .64, respectively). Multivariate analysis showed that the presence of sMPMTs was not a significant prognostic factor for OS, DFS, or relapse (hazard ratio [HR] 1.48, 95% confidence interval [CI] 0.65-3.38, P = .35; HR 0.97, 95% CI 0.46 2.10, P = .97; and HR 0.79, 95% CI 0.29-2.14, P = .65). In patients with sMPMTs, the order of treatment was not a significant prognostic factor. However, discontinuation of treatment was a marginally favorable factor and might reflect a selection bias. CONCLUSION: The presence of sMPMTs was not a significant risk factor for patients with newly diagnosed hematological malignancies. It is important to provide adequate treatment for both hematological malignancies and solid tumors at the physician's discretion. PMID- 29033301 TI - Characterization of gyrA and gyrB mutations associated with fluoroquinolone resistance in Mycobacterium tuberculosis isolates from Morocco. AB - OBJECTIVES: Fluoroquinolones (FQs) are the cornerstone of treatment for drug resistant tuberculosis (TB). They are the most effective second-line antimycobacterial drugs and are recommended for the treatment of multidrug resistant TB (MDR-TB). However, it is widely accepted that FQ resistance is high among MDR-TB isolates. Thus, characterisation of mutations conferring resistance to FQs will be of a great interest for effective and efficient management of TB resistance in Morocco. METHODS: A laboratory collection of 30 Mycobacterium tuberculosis isolates previously characterised as phenotypically and genotypically MDR as well as 20 randomly selected pan-susceptible isolates were included in this retrospective study. The mutation profiles associated with resistance to FQs were assessed by PCR and DNA sequencing. Target sequences for two genes (gyrA and gyrB) were examined. All strains had their fingerprint previously established by spoligotyping. RESULTS: Molecular analyses showed that 30% of the MDR-TB isolates harboured FQ resistance mutations in gyrA, with the most prevalent being an alanine to threonine at position 90 (Ala90Thr) (56%; 5/9). None of the isolates harboured mutations in gyrB. All gyrA resistance mutant strains belonged to the LAM lineage, mostly LAM9, raising the possible emergence of a specific clone (gyrA mutant/LAM9). CONCLUSION: The results of this preliminary study highlight the high prevalence of FQ resistance among MDR-TB isolates in Morocco and consequently the need for rapid detection of FQ resistance once MDR-TB is confirmed to adjust treatment in a timely manner and to interrupt the propagation of more severe forms of M. tuberculosis drug resistance. PMID- 29033302 TI - Antimicrobial susceptibility of Helicobacter pylori strains isolated from children in Israel. AB - OBJECTIVES: Helicobacter pylori is a bacterial pathogen causing inflammation of the gastric mucosa that may lead to peptic ulcer, perforation or malignancy. Children are at risk of contracting H. pylori and developing subsequent morbidity. Diagnosis and management in children are difficult and merit a different approach compared with adults. This study aimed to describe the antimicrobial resistance rates of H. pylori to amoxicillin, tetracycline, clarithromycin, metronidazole, levofloxacin and rifampicin. METHODS: Biopsies (n=154) collected during endoscopic examinations were cultivated for 10days using a growth medium selective for H. pylori, of which 89 were H. pylori-positive. Antimicrobial resistance of the strains was assessed by Etest to establish minimum inhibitory concentrations (MICs) according to British Society for Antimicrobial Chemotherapy guidelines. RESULTS: Resistance rates were most notable for amoxicillin and clarithromycin at 12% and 35% with MICs of 0.74MUg/mL and 2.51MUg/mL, respectively. Resistance rates to tetracycline and levofloxacin were 8% and 2% with MICs of 2.57MUg/mL and 2.0MUg/mL, respectively. Resistance rates to rifampicin and metronidazole were 3% and 8% with MICs of 2.0MUg/mL and 9.71MUg/mL, respectively. CONCLUSION: Current rising antibiotic resistance rates for H. pylori are of concern. Performance of culture enables determination of the susceptibility profile, which may lead to a better choice of, and perhaps narrower spectrum, antibiotic agent. In light of these findings, we suggest that optimising the choice of antibiotic agent in children with H. pylori infection remains a challenge for clinicians and thus requires further investigation in randomised clinical trials. PMID- 29033303 TI - Schwann Cells in the Ventral Dermis Do Not Derive from Myf5-Expressing Precursors. AB - The embryonic origin of lineage precursors of the trunk dermis is somewhat controversial. Precursor cells traced by Myf5 and Twist2 (Dermo1) promoter activation (i.e., cells of presumed dermomyotomal lineage) have been reported to generate Schwann cells. On the other hand, abundant data demonstrate that dermal Schwann cells derive from the neural crest. This is relevant because dermal precursors give rise to neural lineages, and multilineage differentiation potential qualifies them as adult stem cells. However, it is currently unclear whether neural lineages arise from dedifferentiated Schwann cells instead of mesodermally derived dermal precursor cells. To clarify these discrepancies, we traced SOX2+ adult dermal precursor cells by two independent Myf5 lineage tracing strains. We demonstrate that dermal Schwann cells do not belong to the Myf5+ cell lineage, indicating that previous tracing data reflected aberrant cre recombinase expression and that bona fide Myf5+ dermal precursors cannot transdifferentiate to neural lineages in physiological conditions. PMID- 29033304 TI - Epigenetic Activation of Pro-angiogenic Signaling Pathways in Human Endothelial Progenitors Increases Vasculogenesis. AB - Human endothelial colony-forming cells (ECFCs) represent a promising source of adult stem cells for vascular repair, yet their regenerative capacity is limited. Here, we set out to understand the molecular mechanism restricting the repair function of ECFCs. We found that key pro-angiogenic pathways are repressed in ECFCs due to the presence of bivalent (H3K27me3/H3K4me3) epigenetic marks, which decreases the cells' regenerative potential. Importantly, ex vivo treatment with a combination of epigenetic drugs that resolves bivalent marks toward the transcriptionally active H3K4me3 state leads to the simultaneous activation of multiple pro-angiogenic signaling pathways (VEGFR, CXCR4, WNT, NOTCH, SHH). This in turn results in improved capacity of ECFCs to form capillary-like networks in vitro and in vivo. Furthermore, restoration of perfusion is accelerated upon transplantation of drug-treated ECFCs in a model of hindlimb ischemia. Thus, ex vivo treatment with epigenetic drugs increases the vascular repair properties of ECFCs through transient activation of pro-angiogenic signaling pathways. PMID- 29033305 TI - Machine Learning of Human Pluripotent Stem Cell-Derived Engineered Cardiac Tissue Contractility for Automated Drug Classification. AB - Accurately predicting cardioactive effects of new molecular entities for therapeutics remains a daunting challenge. Immense research effort has been focused toward creating new screening platforms that utilize human pluripotent stem cell (hPSC)-derived cardiomyocytes and three-dimensional engineered cardiac tissue constructs to better recapitulate human heart function and drug responses. As these new platforms become increasingly sophisticated and high throughput, the drug screens result in larger multidimensional datasets. Improved automated analysis methods must therefore be developed in parallel to fully comprehend the cellular response across a multidimensional parameter space. Here, we describe the use of machine learning to comprehensively analyze 17 functional parameters derived from force readouts of hPSC-derived ventricular cardiac tissue strips (hvCTS) electrically paced at a range of frequencies and exposed to a library of compounds. A generated metric is effective for then determining the cardioactivity of a given drug. Furthermore, we demonstrate a classification model that can automatically predict the mechanistic action of an unknown cardioactive drug. PMID- 29033306 TI - Oocyte-Specific Homeobox 1, Obox1, Facilitates Reprogramming by Promoting Mesenchymal-to-Epithelial Transition and Mitigating Cell Hyperproliferation. AB - Mammalian oocytes possess fascinating unknown factors, which can reprogram terminally differentiated germ cells or somatic cells into totipotent embryos. Here, we demonstrate that oocyte-specific homeobox 1 (Obox1), an oocyte-specific factor, can markedly enhance the generation of induced pluripotent stem cells (iPSCs) from mouse fibroblasts in a proliferation-independent manner and can replace Sox2 to achieve pluripotency. Overexpression of Obox1 can greatly promote mesenchymal-to-epithelial transition (MET) at early stage of OSKM-induced reprogramming, and meanwhile, the hyperproliferation of THY1-positive cells can be significantly mitigated. Subsequently, the proportion of THY1-negative cells and Oct4-GFP-positive cells increased dramatically. Further analysis of gene expression and targets of Obox1 during reprogramming indicates that the expression of Obox1 can promote epithelial gene expression and modulate cell cycle-related gene expression. Taken together, we conclude that the oocyte specific factor Obox1 serves as a strong activator for somatic cell reprogramming through promoting the MET and mitigating cell hyperproliferation. PMID- 29033308 TI - 2017 Annual Meeting of the American College of Radiology-Moreton Lecture: Forecasting the Futures of Radiology. AB - PURPOSE: The traditional forces of change in health care are no longer working as they did in the past. Political gridlock has destroyed Washington's ability to create sensible policy for reforming the medical marketplace, creating chaos for providers. Fortunately, chaos creates opportunity. The idea of creating one's future has never been more relevant and necessary. MATERIALS AND METHODS: Predicting-the science of extrapolating future values from historical data-is not a valid method for looking ahead when causal relationships that explained change in the past are themselves being redefined (the current situation). Forecasting the art of estimating probabilities of possibilities-is the appropriate method for anticipating futures when causality is being redefined. With its focus on identifying a range of possibilities, forecasting identifies many different outcomes that are simultaneously possible for radiology. RESULTS: Health care's new climate is being shaped by four defining trends: 1) revolution in biological science that is shifting caregivers' mission from acute care to disease management; 2) proliferation of information and communications technologies that are transforming the way care is delivered; 3) end of economic growth in the medical marketplace that is reshaping demand for care; and 4) political dysfunction that forces caregivers and their business partners to develop successful futures on their own. CONCLUSIONS: Radiology 3.0 is nicely aligned with the transformational trends. Staying focused on implementing Radiology 3.0 is supported as the optimal strategy for creating the profession's futures. Diagnostic convergence, establishing a unified diagnostic science with laboratory medicine, is proposed as a complementary initiative. PMID- 29033309 TI - Ethical considerations in prenatal testing: Genomic testing and medical uncertainty. AB - Prenatal diagnostic testing has recently progressed from karyotype to routinely available chromosomal microarray, and the potential for fetal whole exome sequencing, both through invasive diagnostic testing and, in some cases, non invasive prenatal testing. These tests bring beneficence through providing a higher diagnostic yield, often with lower risks of miscarriage than previously available testing, but also raise the question of harms related to an increase in uncertain and unknown results. Some parents-to-be report a desire to learn as much information as possible prenatally, and there may be beneficence in providing them with this information. However, the potential uncertainty these tests may create may raise anxiety and may complicate pregnancy decision-making for both patients and providers. This article reviews current prenatal technologies and the growing research on the clinical and ethical aspects of uncertainty as it relates to expanding prenatal testing options. PMID- 29033307 TI - NEUROG1 Regulates CDK2 to Promote Proliferation in Otic Progenitors. AB - Loss of spiral ganglion neurons (SGNs) significantly contributes to hearing loss. Otic progenitor cell transplantation is a potential strategy to replace lost SGNs. Understanding how key transcription factors promote SGN differentiation in otic progenitors accelerates efforts for replacement therapies. A pro-neural transcription factor, Neurogenin1 (Neurog1), is essential for SGN development. Using an immortalized multipotent otic progenitor (iMOP) cell line that can self renew and differentiate into otic neurons, NEUROG1 was enriched at the promoter of cyclin-dependent kinase 2 (Cdk2) and neurogenic differentiation 1 (NeuroD1) genes. Changes in H3K9ac and H3K9me3 deposition at the Cdk2 and NeuroD1 promoters suggested epigenetic regulation during iMOP proliferation and differentiation. In self-renewing iMOP cells, overexpression of NEUROG1 increased CDK2 to drive proliferation, while knockdown of NEUROG1 decreased CDK2 and reduced proliferation. In iMOP-derived neurons, overexpression of NEUROG1 accelerated acquisition of neuronal morphology, while knockdown of NEUROG1 prevented differentiation. Our findings suggest that NEUROG1 can promote proliferation or neuronal differentiation. PMID- 29033310 TI - Relation of elevated serum uric acid levels to first-degree heart block and other cardiac conduction defects in hospitalized patients with type 2 diabetes. AB - AIMS: Several studies have reported that moderately elevated serum uric acid levels are associated with an increased risk of tachyarrhythmias (mainly atrial fibrillation) in patients with and without type 2 diabetes mellitus (T2DM). It is currently unknown whether an association also exists between elevated serum uric acid levels and cardiac conduction defects in patients with T2DM. METHODS: We retrospectively analyzed a hospital-based sample of 967 patients with T2DM discharged from our Division of Endocrinology over the years 2007-2014. Standard electrocardiograms were performed on all patients and were interpreted by expert cardiologists. RESULTS: Overall, 267 (27.6%) patients had some type of conduction defects on electrocardiograms (defined as at least one block among first-degree atrio-ventricular block, second-degree block, third-degree block, left bundle branch block, right bundle branch block, left anterior hemi-block or left posterior hemi-block). Patients in the 3rd serum uric acid tertile had a higher prevalence of any cardiac conduction defects than those belonging to 2nd or 1st tertile, respectively (35.8% vs. 25.0% vs. 22.6%; p<0.0001). Elevated serum uric acid levels were associated with a nearly twofold increased risk of cardiac conduction defects after adjustment for age, sex, hemoglobin A1c, diabetes duration, metabolic syndrome, chronic kidney disease, chronic obstructive pulmonary disease, ischemic heart disease, valvular heart disease and medication use (adjusted-odds ratio 1.84, 95% confidence intervals 1.2-2.9; p=0.009). CONCLUSIONS: Moderately elevated serum uric acid levels are associated with an increased prevalence of any cardiac conduction defects in hospitalized patients with T2DM, independent of multiple risk factors and potential confounding variables. PMID- 29033311 TI - Brain gray matter changes in type 2 diabetes mellitus: A meta-analysis of whole brain voxel-based morphometry study. AB - AIMS: We aimed to identify alterations in global gray matter volumes (GMV) and consistent regional abnormalities in T2DM patients via meta-analysis. METHODS: A systematic search for relevant studies indexed in the PubMed and Embase databases was conducted. A quantitative meta-analysis of volumetric and whole-brain VBM data was conducted using STATA v.12.0 and AES-SDM software packages, respectively. RESULTS: A total of 15 volumetric studies and five VBM studies of GM in T2DM patients vs. healthy controls (HCs) were identified. The volumetric meta-analysis showed that the GMV of patients with T2DM is lower than in HCs (SMD = -0.56, 95% CI = -0.81 to -0.31, P 0.01). The whole-brain VBM meta-analysis revealed GM reductions in the left superior temporal gyrus, the right middle temporal gyrus, the right rolandic operculum, and the left fusiform gyrus in T2DM patients compared with HCs. Meta-regression analysis showed that Mini-Mental State Examination (MMSE) scores have a positive relationship with GMV in the right insula. CONCLUSIONS: The results showed a reduced volume of whole and regional GM in T2DM patients, which may indicate a risk for dementia. Further longitudinal research is needed to confirm GM changes, cognitive dysfunction, and their relationship in T2DM. PMID- 29033312 TI - Higher serum albumin was related with diabetes incidence and the impact of BMI changes: Based on cohort study of 18,384 Chinese male elderly. AB - AIMS: Albumin (ALB) was a useful marker of nutrition and general health status. However, the conclusion about the association between ALB and diabetes was inconsistent, and little information was known about the elderly. METHODS: A cohort study based on 18,384 army cadres was conducted Beijing, from 2009 to 2013. RESULTS: The mean age of the total 18,384 participants was 71+/-14years, and the mean ALB concentration was 44.33+/-3.94g/L at baseline. Diabetes incident showed an increasing trend according to the four ALB concentration groups, from 2.054% to 2.811% for incident. Cox regression showed that participants with higher ALB concentration were at increased HRs for diabetes incident. The HRs of ALB (per SD) and ALB concentration for diabetes were 1.125 (95% CI: 1.024-1.231) and 1.029 (95% CI: 1.007-1.051) respectively in the adjusted model. Also the HRs were closely related with BMI changes. For those who had a BMI changes< 1.00kg/m2, the HRs were lower and not statistically significant, and for those with increasing BMI during an average of 4years' follow-up, the HRs were higher. CONCLUSION: There was a positive and independent association between baseline ALB concentrations with diabetes incident among Chinese male elderly, and this association was closely related with BMI changes. PMID- 29033313 TI - Developing a model for cystic fibrosis sociomicrobiology based on antibiotic and environmental stress. AB - Cystic fibrosis (CF) infections are invariably biofilm-mediated and polymicrobial, being safe to assume that a myriad of factors affects the sociomicrobiology within the CF infection site and modulate the CF community dynamics, by shaping their social activities, overall functions, virulence, ultimately affecting disease outcome. This work aimed to assess changes in the dynamics (particularly on the microbial composition) of dual-/three-species biofilms involving CF-classical (Pseudomonas aeruginosa) and unusual species (Inquilinus limosus and Dolosigranulum pigrum), according to variable oxygen conditions and antibiotic exposure. Low fluctuations in biofilm compositions were observed across distinct oxygen environments, with dual-species biofilms exhibiting similar relative proportions and P. aeruginosa and/or D. pigrum populations dominating three-species consortia. Once exposed to antibiotics, biofilms displayed high resistance profiles, and microbial compositions, distributions, and microbial interactions significantly challenged. The antibiotic/oxygen environment supported such fluctuations, which enhanced for three-species communities. In conclusion, antibiotic therapy hugely disturbed CF communities' dynamics, inducing significant compositional changes on multispecies consortia. Clearly, multiple perturbations may disturb this dynamic, giving rise to various microbiological scenarios in vivo, and affecting disease phenotype. Therefore, an appreciation of the ecological/evolutionary nature within CF communities will be useful for the optimal use of current therapies and for newer breakthroughs on CF antibiotherapy. PMID- 29033315 TI - Very Long Chain Fatty Acids Are Functionally Involved in Necroptosis. AB - Necroptosis is a form of regulated cell death that is linked to various human diseases. Distinct membrane-related, thus lipid-dependent, alterations take place during necroptosis. However, little is known about the roles of specific lipids in this process. We used an untargeted LC-MS-based approach to reveal that distinct lipid species are regulated at the molecular level during necroptosis. We found that ceramides and very long chain fatty acids accumulate during this process. Intrigued by the specificity of very long chain fatty acid accumulation, we focused on characterizing their involvement during necroptosis. Biochemical characterizations suggested that activated fatty acid biosynthesis and elongation could be responsible for these accumulations. We further showed that inhibition of fatty acid biosynthesis and depletion of very long chain fatty acids prevented loss of plasma membrane integrity and cell death, strongly suggesting that very long chain fatty acids are functionally involved in necroptosis. PMID- 29033314 TI - Analysis of threshold stenosis by multiplanar venogram and intravascular ultrasound examination for predicting clinical improvement after iliofemoral vein stenting in the VIDIO trial. AB - BACKGROUND: Selecting patients for iliofemoral vein stenting has traditionally relied on the identification and quantification of stenotic lesions with imaging such as multiplanar venography. Recently, intravascular ultrasound (IVUS) imaging has become more available. However, to date, the usefulness of these imaging modalities using the customary >50% treatment threshold for diameter (multiplanar venography) and area (IVUS) stenosis of iliofemoral veins has not been validated prospectively within the context of clinical improvement. METHODS: The multicenter Venogram Versus Intravascular Ultrasound for Diagnosing and Treating Iliofemoral Vein Obstruction (VIDIO) trial prospectively enrolled 100 symptomatic patients (Clinical Etiologic Anatomic Pathophysiologic [CEAP] classification of 4 6) with suspected iliofemoral venous outflow disease. Venous stenting for presumed significant iliofemoral vein stenosis, based on imaging and clinical findings, was performed on 68 patients. Based on imaging, stenosis was characterized as nonthrombotic in 48 patients and post-thrombotic in 20 patients. Each underwent baseline and poststenting venography and IVUS to compare the diagnostic and clinical usefulness of the tests. The revised Venous Clinical Severity Score was used to assess clinical patient outcome. A >4-point reduction in the revised Venous Clinical Severity Score between baseline and 6 months was used as an indicator of clinically meaningful improvement. Receiver operating characteristic curve analysis was used to determine the optimal diameter and area thresholds for prediction of clinical improvement. RESULTS: Clinical improvement after stenting was best predicted by IVUS baseline measurement of area stenosis (area under the curve, 0.64; P = .04), with >54% estimated as the optimal threshold of stenosis indicating interventional treatment. With measurement of lumen gain from baseline to after the procedure, the optimal reduction in vein stenosis correlative of later clinical improvement was >41%; IVUS measurement of area stenosis was most predictive (area under the curve, 0.70; P = .004). Venographic measurements of baseline stenosis and stenotic change were not predictive of later improvement. In a 48-patient nonthrombotic subset analysis, IVUS diameter rather than area measurements of baseline stenosis were significantly predictive of clinical success, but indicated a higher optimal threshold of stenosis (>61%) may be necessary. CONCLUSIONS: This study suggests that IVUS shows significant usefulness at predicting when stenting iliofemoral vein stenosis in patients clinical-etiologic-anatomic-pathophysiologic classification of 4-6 will result in significant symptom improvement. Our findings corroborate the conventional >50% cross-sectional area threshold by IVUS as defining a clinically significant iliofemoral stenosis that, when stented, has significant predictive value for symptom improvement. In nonthrombotic patients, however, a threshold of >61% diameter stenosis by IVUS may better predict clinical improvement. PMID- 29033316 TI - Synergy and Target Promiscuity Drive Structural Divergence in Bacterial Alkylquinolone Biosynthesis. AB - Microbial natural products are genetically encoded by dedicated biosynthetic gene clusters (BGCs). A given BGC usually produces a family of related compounds that share a core but contain variable substituents. Though common, the reasons underlying this divergent biosynthesis are in general unknown. Herein, we have addressed this issue using the hydroxyalkylquinoline (HAQ) family of natural products synthesized by Burkholderia thailandensis. Investigations into the detailed functions of two analogs show that they act synergistically in inhibiting bacterial growth. One analog is a nanomolar inhibitor of pyrimidine biosynthesis and at the same time disrupts the proton motive force. A second analog inhibits the cytochrome bc1 complex as well as pyrimidine biogenesis. These results provide a functional rationale for the divergent nature of HAQs. They imply that synergy and target promiscuity are driving forces for the evolution of tailoring enzymes that diversify the products of the HAQ biosynthetic pathway. PMID- 29033318 TI - An Alkynyl-Fucose Halts Hepatoma Cell Migration and Invasion by Inhibiting GDP Fucose-Synthesizing Enzyme FX, TSTA3. AB - Fucosylation is a glycan modification critically involved in cancer and inflammation. Although potent fucosylation inhibitors are useful for basic and clinical research, only a few inhibitors have been developed. Here, we focus on a fucose analog with an alkyne group, 6-alkynyl-fucose (6-Alk-Fuc), which is used widely as a detection probe for fucosylated glycans, but is also suggested for use as a fucosylation inhibitor. Our glycan analysis using lectin and mass spectrometry demonstrated that 6-Alk-Fuc is a potent and general inhibitor of cellular fucosylation, with much higher potency than the existing inhibitor, 2 fluoro-fucose (2-F-Fuc). The action mechanism was shown to deplete cellular GDP Fuc, and the direct target of 6-Alk-Fuc is FX (encoded by TSTA3), the bifunctional GDP-Fuc synthase. We also show that 6-Alk-Fuc halts hepatoma invasion. These results highlight the unappreciated role of 6-Alk-Fuc as a fucosylation inhibitor and its potential use for basic and clinical science. PMID- 29033317 TI - Ras Binder Induces a Modified Switch-II Pocket in GTP and GDP States. AB - Covalent inhibitors of K-Ras(G12C) have been reported that exclusively recognize the GDP state. Here, we utilize disulfide tethering of a non-natural cysteine (K Ras(M72C)) to identify a new switch-II pocket (S-IIP) binding ligand (2C07) that engages the active GTP state. Co-crystal structures of 2C07 bound to H-Ras(M72C) reveal binding in a cryptic groove we term S-IIG. In the GppNHp state, 2C07 binding to a modified S-IIP pushes switch I away from the nucleotide, breaking the network of polar contacts essential for adopting the canonical GTP state. Biochemical studies show that 2C07 alters nucleotide preference and inhibits SOS binding and catalyzed nucleotide exchange. 2C07 was converted to irreversible covalent analogs, which target both nucleotide states, inhibit PI3K activation in vitro, and function as occupancy probes to detect reversible engagement in competition assays. Targeting both nucleotide states opens the possibility of inhibiting oncogenic mutants of Ras, which exist predominantly in the GTP state in cells. PMID- 29033321 TI - Regulation of m6A Transcripts by the 3'->5' RNA Helicase YTHDC2 Is Essential for a Successful Meiotic Program in the Mammalian Germline. AB - N6-methyladenosine (m6A) is an essential internal RNA modification that is critical for gene expression control in most organisms. Proteins with a YTH domain recognize m6A marks and are mediators of molecular functions like RNA splicing, mRNA decay, and translation control. Here we demonstrate that YTH domain-containing 2 (YTHDC2) is an m6A reader that is essential for male and female fertility in mice. High-throughput mapping of the m6A transcriptome and expression analysis in the Yhtdc2 mutant testes reveal an upregulation of m6A enriched transcripts. Our biochemical studies indicate that YTHDC2 is an RNA induced ATPase with a 3'->5' RNA helicase activity. Furthermore, YTHDC2 recruits the 5'->3' exoribonuclease XRN1 via Ankyrin repeats that are inserted in between the RecA modules of the RNA helicase domain. Our studies reveal a role for YTHDC2 in modulating the levels of m6A-modified germline transcripts to maintain a gene expression program that is conducive for progression through meiosis. PMID- 29033320 TI - Mitophagy Controls the Activities of Tumor Suppressor p53 to Regulate Hepatic Cancer Stem Cells. AB - Autophagy is required for benign hepatic tumors to progress into malignant hepatocellular carcinoma. However, the mechanism is unclear. Here, we report that mitophagy, the selective removal of mitochondria by autophagy, positively regulates hepatic cancer stem cells (CSCs) by suppressing the tumor suppressor p53. When mitophagy is enhanced, p53 co-localizes with mitochondria and is removed by a mitophagy-dependent manner. However, when mitophagy is inhibited, p53 is phosphorylated at serine-392 by PINK1, a kinase associated with mitophagy, on mitochondria and translocated into the nucleus, where it binds to the NANOG promoter to prevent OCT4 and SOX2 transcription factors from activating the expression of NANOG, a transcription factor critical for maintaining the stemness and the self-renewal ability of CSCs, resulting in the reduction of hepatic CSC populations. These results demonstrate that mitophagy controls the activities of p53 to maintain hepatic CSCs and provide an explanation as to why autophagy is required to promote hepatocarcinogenesis. PMID- 29033319 TI - Checkpoint Kinase Rad53 Couples Leading- and Lagging-Strand DNA Synthesis under Replication Stress. AB - The checkpoint kinase Rad53 is activated during replication stress to prevent fork collapse, an essential but poorly understood process. Here we show that Rad53 couples leading- and lagging-strand synthesis under replication stress. In rad53-1 cells stressed by dNTP depletion, the replicative DNA helicase, MCM, and the leading-strand DNA polymerase, Pol epsilon, move beyond the site of DNA synthesis, likely unwinding template DNA. Remarkably, DNA synthesis progresses further along the lagging strand than the leading strand, resulting in the exposure of long stretches of single-stranded leading-strand template. The asymmetric DNA synthesis in rad53-1 cells is suppressed by elevated levels of dNTPs in vivo, and the activity of Pol epsilon is compromised more than lagging strand polymerase Pol delta at low dNTP concentrations in vitro. Therefore, we propose that Rad53 prevents the generation of excessive ssDNA under replication stress by coordinating DNA unwinding with synthesis of both strands. PMID- 29033322 TI - Structural Basis of Mec1-Ddc2-RPA Assembly and Activation on Single-Stranded DNA at Sites of Damage. AB - Mec1-Ddc2 (ATR-ATRIP) is a key DNA-damage-sensing kinase that is recruited through the single-stranded (ss) DNA-binding replication protein A (RPA) to initiate the DNA damage checkpoint response. Activation of ATR-ATRIP in the absence of DNA damage is lethal. Therefore, it is important that damage-specific recruitment precedes kinase activation, which is achieved at least in part by Mec1-Ddc2 homodimerization. Here, we report a structural, biochemical, and functional characterization of the yeast Mec1-Ddc2-RPA assembly. High-resolution co-crystal structures of Ddc2-Rfa1 and Ddc2-Rfa1-t11 (K45E mutant) N termini and of the Ddc2 coiled-coil domain (CCD) provide insight into Mec1-Ddc2 homodimerization and damage-site targeting. Based on our structural and functional findings, we present a Mec1-Ddc2-RPA-ssDNA composite structural model. By way of validation, we show that RPA-dependent recruitment of Mec1-Ddc2 is crucial for maintaining its homodimeric state at ssDNA and that Ddc2's recruitment domain and CCD are important for Mec1-dependent survival of UV-light induced DNA damage. PMID- 29033323 TI - mTORC1 Phosphorylates Acetyltransferase p300 to Regulate Autophagy and Lipogenesis. AB - Acetylation is increasingly recognized as one of the major post-translational mechanisms for the regulation of multiple cellular functions in mammalian cells. Acetyltransferase p300, which acetylates histone and non-histone proteins, has been intensively studied in its role in cell growth and metabolism. However, the mechanism underlying the activation of p300 in cells remains largely unknown. Here, we identify the homeostatic sensor mTORC1 as a direct activator of p300. Activated mTORC1 interacts with p300 and phosphorylates p300 at 4 serine residues in the C-terminal domain. Mechanistically, phosphorylation of p300 by mTORC1 prevents the catalytic HAT domain from binding to the RING domain, thereby eliminating intra-molecular inhibition. Functionally, mTORC1-dependent phosphorylation of p300 suppresses cell-starvation-induced autophagy and activates cell lipogenesis. These results uncover p300 as a direct target of mTORC1 and suggest that the mTORC1-p300 pathway plays a pivotal role in cell metabolism by coordinately controlling cell anabolism and catabolism. PMID- 29033326 TI - Genetic Discontinuity between the Maritime Archaic and Beothuk Populations in Newfoundland, Canada. AB - Situated at the furthest northeastern edge of Canada, the island of Newfoundland (approximately 110,000 km2) and Labrador (approximately 295,000 km2) today constitute a province characterized by abundant natural resources but low population density. Both landmasses were covered by the Laurentide ice sheet during the Last Glacial Maximum (18,000 years before present [YBP]); after the glacier retreated, ice patches remained on the island until ca. 9,000 calibrated (cal) YBP [1]. Nevertheless, indigenous peoples, whose ancestors had trekked some 5,000 km from the west coast, arrived approximately 10,000 cal YBP in Labrador and ca. 6,000 cal YBP in Newfoundland [2, 3]. Differential features in material culture indicate at least three settlement episodes by distinct cultural groups, including the Maritime Archaic, Palaeoeskimo, and Beothuk. Newfoundland has remained home to indigenous peoples until present day with only one apparent hiatus (3,400-2,800 YBP). This record suggests abandonment, severe constriction, or local extinction followed by subsequent immigrations from single or multiple source populations, but the specific dynamics and the cultural and biological relationships, if any, among these successive peoples remain enigmatic [4]. By examining the mitochondrial genome diversity and isotopic ratios of 74 ancient remains in conjunction with the archaeological record, we have provided definitive evidence for the genetic discontinuity between the maternal lineages of these populations. This northeastern margin of North America appears to have been populated multiple times by distinct groups that did not share a recent common ancestry, but rather one much deeper in time at the entry point into the continent. PMID- 29033325 TI - Effect of Lower-Limb Progressive Resistance Exercise After Hip Fracture Surgery: A Systematic Review and Meta-Analysis of Randomized Controlled Studies. AB - OBJECTIVE: Although several studies have reported the effect of progressive resistance exercise (PRE) after hip fracture surgery, little is known about the functional efficacy of PRE. Thus, we conducted a meta-analysis to evaluate whether PRE can improve (1) mobility and (2) other physical functions in elderly patients after hip fracture surgery. METHODS: Eight randomized controlled trials investigating the effects of PRE after hip fracture surgery were retrieved from a PubMed, Embase, and Cochrane Library search. Our pair-wise meta-analysis used a fixed or random effects model. RESULTS: PRE significantly improved participants' overall physical functions after hip fracture surgery compared with the control group (standardized mean difference = 0.408; 95% confidence interval, 0.238 0.578; P < .001). It was particularly effective in the areas of mobility (standardized mean difference = 0.501; 95% confidence interval, 0.297-0.705; P < .001), activities of daily living, balance, lower-limb strength or power, and performance task. CONCLUSIONS: Our meta-analysis revealed that PRE after hip fracture surgery improves mobility, activities of daily living, balance, lower limb strength or power, and performance task outcomes. Because of the small sample size in this meta-analysis and considering the increasing incidence of hip fractures, there is a need for large-scale randomized controlled trials to confirm the functional improvement and adverse effects of PRE. PMID- 29033324 TI - The Elongation Factor Spt6 Maintains ESC Pluripotency by Controlling Super Enhancers and Counteracting Polycomb Proteins. AB - Spt6 coordinates nucleosome dis- and re-assembly, transcriptional elongation, and mRNA processing. Here, we report that depleting Spt6 in embryonic stem cells (ESCs) reduced expression of pluripotency factors, increased expression of cell lineage-affiliated developmental regulators, and induced cell morphological and biochemical changes indicative of ESC differentiation. Selective downregulation of pluripotency factors upon Spt6 depletion may be mechanistically explained by its enrichment at ESC super-enhancers, where Spt6 controls histone H3K27 acetylation and methylation and super-enhancer RNA transcription. In ESCs, Spt6 interacted with the PRC2 core subunit Suz12 and prevented H3K27me3 accumulation at ESC super-enhancers and associated promoters. Biochemical as well as functional experiments revealed that Spt6 could compete for binding of the PRC2 methyltransferase Ezh2 to Suz12 and reduce PRC2 chromatin engagement. Thus, in addition to serving as a histone chaperone and transcription elongation factor, Spt6 counteracts repression by opposing H3K27me3 deposition at critical genomic regulatory regions. PMID- 29033327 TI - 40,000-Year-Old Individual from Asia Provides Insight into Early Population Structure in Eurasia. AB - By at least 45,000 years before present, anatomically modern humans had spread across Eurasia [1-3], but it is not well known how diverse these early populations were and whether they contributed substantially to later people or represent early modern human expansions into Eurasia that left no surviving descendants today. Analyses of genome-wide data from several ancient individuals from Western Eurasia and Siberia have shown that some of these individuals have relationships to present-day Europeans [4, 5] while others did not contribute to present-day Eurasian populations [3, 6]. As contributions from Upper Paleolithic populations in Eastern Eurasia to present-day humans and their relationship to other early Eurasians is not clear, we generated genome-wide data from a 40,000 year-old individual from Tianyuan Cave, China, [1, 7] to study his relationship to ancient and present-day humans. We find that he is more related to present-day and ancient Asians than he is to Europeans, but he shares more alleles with a 35,000-year-old European individual than he shares with other ancient Europeans, indicating that the separation between early Europeans and early Asians was not a single population split. We also find that the Tianyuan individual shares more alleles with some Native American groups in South America than with Native Americans elsewhere, providing further support for population substructure in Asia [8] and suggesting that this persisted from 40,000 years ago until the colonization of the Americas. Our study of the Tianyuan individual highlights the complex migration and subdivision of early human populations in Eurasia. PMID- 29033329 TI - Nanoscale Visualization of Biomineral Formation in Coral Proto-Polyps. AB - Calcium carbonate platforms produced by reef-building stony corals over geologic time are pervasive features around the world [1]; however, the mechanism by which these organisms produce the mineral is poorly understood (see review by [2]). It is generally assumed that stony corals precipitate calcium carbonate extracellularly as aragonite in a calcifying medium between the calicoblastic ectoderm and pre-existing skeleton, separated from the overlying seawater [2]. The calicoblastic ectoderm produces extracellular matrix (ECM) proteins, secreted to the calcifying medium [3-6], which appear to provide the nucleation, alteration, elongation, and inhibition mechanisms of the biomineral [7] and remain occluded and preserved in the skeleton [8-10]. Here we show in cell cultures of the stony coral Stylophora pistillata that calcium is concentrated in intracellular pockets that are subsequently exported from the cell where a nucleation process leads to the formation of extracellular aragonite crystals. Analysis of the growing crystals by lattice light-sheet microscopy suggests that the crystals elongate from the cells' surfaces outward. PMID- 29033328 TI - The Cys-Arg/N-End Rule Pathway Is a General Sensor of Abiotic Stress in Flowering Plants. AB - Abiotic stresses impact negatively on plant growth, profoundly affecting yield and quality of crops. Although much is known about plant responses, very little is understood at the molecular level about the initial sensing of environmental stress. In plants, hypoxia (low oxygen, which occurs during flooding) is directly sensed by the Cys-Arg/N-end rule pathway of ubiquitin-mediated proteolysis, through oxygen-dependent degradation of group VII Ethylene Response Factor transcription factors (ERFVIIs) via amino-terminal (Nt-) cysteine [1, 2]. Using Arabidopsis (Arabidopsis thaliana) and barley (Hordeum vulgare), we show that the pathway regulates plant responses to multiple abiotic stresses. In Arabidopsis, genetic analyses revealed that response to these stresses is controlled by N-end rule regulation of ERFVII function. Oxygen sensing via the Cys-Arg/N-end rule in higher eukaryotes is linked through a single mechanism to nitric oxide (NO) sensing [3, 4]. In plants, the major mechanism of NO synthesis is via NITRATE REDUCTASE (NR), an enzyme of nitrogen assimilation [5]. Here, we identify a negative relationship between NR activity and NO levels and stabilization of an artificial Nt-Cys substrate and ERFVII function in response to environmental changes. Furthermore, we show that ERFVIIs enhance abiotic stress responses via physical and genetic interactions with the chromatin-remodeling ATPase BRAHMA. We propose that plants sense multiple abiotic stresses through the Cys-Arg/N-end rule pathway either directly (via oxygen sensing) or indirectly (via NO sensing downstream of NR activity). This single mechanism can therefore integrate environment and response to enhance plant survival. PMID- 29033330 TI - Exocrine Gland-Secreting Peptide 1 Is a Key Chemosensory Signal Responsible for the Bruce Effect in Mice. AB - The Bruce effect refers to pregnancy termination in recently pregnant female rodents upon exposure to unfamiliar males [1]. This event occurs in specific combinations of laboratory mouse strains via the vomeronasal system [2, 3]; however, the responsible chemosensory signals have not been fully identified. Here we demonstrate that the male pheromone exocrine gland-secreting peptide 1 (ESP1) is one of the key factors that causes pregnancy block. Female mice exhibited high pregnancy failure rates upon encountering males that secreted different levels of ESP1 compared to the mated male. The effect was not observed in mice that lacked the ESP1 receptor, V2Rp5, which is expressed in vomeronasal sensory neurons. Prolactin surges in the blood after mating, which are essential for maintaining luteal function, were suppressed by ESP1 exposure, suggesting that a neuroendocrine mechanism underlies ESP1-mediated pregnancy failure. The single peptide pheromone ESP1 conveys not only maleness to promote female receptivity but also the males' characteristics to facilitate memorization of the mating partner. PMID- 29033331 TI - Transcranial Direct Current Stimulation Facilitates Associative Learning and Alters Functional Connectivity in the Primate Brain. AB - There has been growing interest in transcranial direct current stimulation (tDCS), a non-invasive technique purported to modulate neural activity via weak, externally applied electric fields. Although some promising preliminary data have been reported for applications ranging from stroke rehabilitation to cognitive enhancement, little is known about how tDCS affects the human brain, and some studies have concluded that it may have no effect at all. Here, we describe a macaque model of tDCS that allows us to simultaneously examine the effects of tDCS on brain activity and behavior. We find that applying tDCS to right prefrontal cortex improves monkeys' performance on an associative learning task. While firing rates do not change within the targeted area, tDCS does induce large low-frequency oscillations in the underlying tissue. These oscillations alter functional connectivity, both locally and between distant brain areas, and these long-range changes correlate with tDCS's effects on behavior. Together, these results are consistent with the idea that tDCS leads to widespread changes in brain activity and suggest that it may be a valuable method for cheaply and non invasively altering functional connectivity in humans. PMID- 29033333 TI - Mothers Consistently Alter Their Unique Vocal Fingerprints When Communicating with Infants. AB - The voice is the most direct link we have to others' minds, allowing us to communicate using a rich variety of speech cues [1, 2]. This link is particularly critical early in life as parents draw infants into the structure of their environment using infant-directed speech (IDS), a communicative code with unique pitch and rhythmic characteristics relative to adult-directed speech (ADS) [3, 4]. To begin breaking into language, infants must discern subtle statistical differences about people and voices in order to direct their attention toward the most relevant signals. Here, we uncover a new defining feature of IDS: mothers significantly alter statistical properties of vocal timbre when speaking to their infants. Timbre, the tone color or unique quality of a sound, is a spectral fingerprint that helps us instantly identify and classify sound sources, such as individual people and musical instruments [5-7]. We recorded 24 mothers' naturalistic speech while they interacted with their infants and with adult experimenters in their native language. Half of the participants were English speakers, and half were not. Using a support vector machine classifier, we found that mothers consistently shifted their timbre between ADS and IDS. Importantly, this shift was similar across languages, suggesting that such alterations of timbre may be universal. These findings have theoretical implications for understanding how infants tune in to their local communicative environments. Moreover, our classification algorithm for identifying infant-directed timbre has direct translational implications for speech recognition technology. PMID- 29033332 TI - Disruption of Core Planar Cell Polarity Signaling Regulates Renal Tubule Morphogenesis but Is Not Cystogenic. AB - Oriented cell division (OCD) and convergent extension (CE) shape developing renal tubules, and their disruption has been associated with polycystic kidney disease (PKD) genes, the majority of which encode proteins that localize to primary cilia. Core planar cell polarity (PCP) signaling controls OCD and CE in other contexts, leading to the hypothesis that disruption of PCP signaling interferes with CE and/or OCD to produce PKD. Nonetheless, the contribution of PCP to tubulogenesis and cystogenesis is uncertain, and two major questions remain unanswered. Specifically, the inference that mutation of PKD genes interferes with PCP signaling is untested, and the importance of PCP signaling for cystogenic PKD phenotypes has not been examined. We show that, during proliferative stages, PCP signaling polarizes renal tubules to control OCD. However, we find that, contrary to the prevailing model, PKD mutations do not disrupt PCP signaling but instead act independently and in parallel with PCP signaling to affect OCD. Indeed, PCP signaling that is normally downregulated once development is completed is retained in cystic adult kidneys. Disrupting PCP signaling results in inaccurate control of tubule diameter, a tightly regulated parameter with important physiological ramifications. However, we show that disruption of PCP signaling is not cystogenic. Our results suggest that regulating tubule diameter is a key function of PCP signaling but that loss of this control does not induce cysts. PMID- 29033334 TI - Genetic Ancestry of Rapanui before and after European Contact. AB - The origins and lifeways of the inhabitants of Rapa Nui (Easter Island), a remote island in the southeast Pacific Ocean, have been debated for generations. Archaeological evidence substantiates the widely accepted view that the island was first settled by people of Polynesian origin, as late as 1200 CE [1-4]. What remains controversial, however, is the nature of events in the island's population history prior to the first historic contact with Europeans in 1722 CE. Purported contact between Rapa Nui and South America is particularly contentious, and recent studies have reported genetic evidence for Native American admixture in present-day indigenous inhabitants of Rapa Nui [5-8]. Statistical modeling has suggested that this genetic contribution might have occurred prior to European contact [6]. Here we directly test the hypothesis that the Native American admixture of the current Rapa Nui population predates the arrival of Europeans with a paleogenomic analysis of five individual samples excavated from Ahu Nau Nau, Anakena, dating to pre- and post-European contact, respectively. Complete mitochondrial genomes and low-coverage autosomal genomes show that the analyzed individuals fall within the genetic diversity of present-day and ancient Polynesians, and we can reject the hypothesis that any of these individuals had substantial Native American ancestry. Our data thus suggest that the Native American ancestry in contemporary Easter Islanders was not present on the island prior to European contact and may thus be due to events in more recent history. PMID- 29033335 TI - Alpha-Band Activity Reveals Spontaneous Representations of Spatial Position in Visual Working Memory. AB - An emerging view suggests that spatial position is an integral component of working memory (WM), such that non-spatial features are bound to locations regardless of whether space is relevant [1, 2]. For instance, past work has shown that stimulus position is spontaneously remembered when non-spatial features are stored. Item recognition is enhanced when memoranda appear at the same location where they were encoded [3-5], and accessing non-spatial information elicits shifts of spatial attention to the original position of the stimulus [6, 7]. However, these findings do not establish that a persistent, active representation of stimulus position is maintained in WM because similar effects have also been documented following storage in long-term memory [8, 9]. Here we show that the spatial position of the memorandum is actively coded by persistent neural activity during a non-spatial WM task. We used a spatial encoding model in conjunction with electroencephalogram (EEG) measurements of oscillatory alpha band (8-12 Hz) activity to track active representations of spatial position. The position of the stimulus varied trial to trial but was wholly irrelevant to the tasks. We nevertheless observed active neural representations of the original stimulus position that persisted throughout the retention interval. Further experiments established that these spatial representations are dependent on the volitional storage of non-spatial features rather than being a lingering effect of sensory energy or initial encoding demands. These findings provide strong evidence that online spatial representations are spontaneously maintained in WM regardless of task relevance-during the storage of non-spatial features. PMID- 29033336 TI - Open Abdomen Therapy with Vacuum and Mesh Mediated Fascial Traction After Aortic Repair: an International Multicentre Study. AB - OBJECTIVES: Open abdomen therapy may be necessary to prevent or treat abdominal compartment syndrome (ACS). The aim of the study was to analyse the primary delayed fascial closure (PDFC) rate and complications after open abdomen therapy with vacuum and mesh mediated fascial traction (VACM) after aortic repair and to compare outcomes between those treated with open abdomen after primary versus secondary operation. METHODS: This was a retrospective cohort, multicentre study in Sweden, Finland, and Norway, including consecutive patients treated with open abdomen and VACM after aortic repair at six vascular centres in 2006-2015. The primary endpoint was PDFC rate. RESULTS: Among 191 patients, 155 were men. The median age was 71 years (IQR 66-76). Ruptured abdominal aortic aneurysm (RAAA) occurred in 69.1%. Endovascular/hybrid and open repairs were performed in 49 and 142 patients, respectively. The indications for open abdomen were inability to close the abdomen (62%) at primary operation and ACS (80%) at secondary operation. Duration of open abdomen was 11 days (IQR 7-16) in 157 patients alive at open abdomen termination. The PDFC rate was 91.8%. Open abdomen initiated at primary (N=103), compared with secondary operation (N=88), was associated with less severe initial open abdomen status (p=.006), less intestinal ischaemia (p=.002), shorter duration of open abdomen (p=.007), and less renal replacement therapy (RRT, p<.001). In hospital mortality was 39.3%, and after entero atmospheric fistula (N=9) was 88.9%. Seven developed graft infection within 6 months, 1 year mortality was 28.6%. Intestinal ischaemia (OR 3.71, 95% CI 1.55 8.91), RRT (OR 3.62, 95% CI 1.72-7.65), and age (OR 1.12, 95% CI 1.06-1.12), were independent factors associated with in hospital mortality, but not open abdomen initiated at primary versus secondary operation. CONCLUSIONS: VACM was associated with a high PDFC rate after prolonged open abdomen therapy following aortic repair. Patient outcomes seemed better when open abdomen was initiated at primary, compared with secondary operation but a selection effect is possible. PMID- 29033337 TI - Editor's Choice - Five Year Results of Great Saphenous Vein Treatment: A Meta analysis. AB - OBJECTIVES: The most frequently used treatment options for great saphenous vein incompetence are high ligation with stripping (HL+S), endovenous thermal ablation (EVTA), mainly consisting of endovenous laser ablation (EVLA) or radiofrequency ablation, and ultrasound guided foam sclerotherapy (UGFS). The objective of this systematic review and meta-analysis was to compare the long-term efficacy of these different treatment modalities. METHODS: A systematic literature search was performed. Randomised controlled trials (RCTs) with follow-up >= 5 years were included. Pooled proportions of anatomical success, which was the primary outcome, rate of recurrent reflux at the saphenofemoral junction (SFJ), and mean difference in venous clinical severity score (VCSS) were compared using a z test or Student t test. Quality of life data were assessed and described. RESULTS: Three RCTs and 10 follow-up studies of RCTs were included of which 12 were pooled in the meta-analysis. In total, 611 legs were treated with EVLA, 549 with HL+S, 121 with UGFS, and 114 with HL+EVLA. UGFS had significantly lower pooled anatomical success rates than HL+S, EVLA, and EVLA with high ligation: 34% (95% CI 26-44) versus 83% (95% CI 72-90), 88% (95% CI 82-92), and 88% (95% CI 17-100) respectively; p <= .001. The pooled recurrent reflux rate at the SFJ was significantly lower for HL+S than UGFS (12%, 95% CI 7-20, vs. 29%, 95% CI 21-38; p <= .001) and EVLA (12%, 95% CI 7-20, vs. 22%, 95% CI 14-32; p = .038). VCSS scores were pooled for EVLA and HL+S, which showed similar improvements. CONCLUSION: EVLA and HL+S show higher success rates than UGFS 5 years after GSV treatment. Recurrent reflux rates at the SFJ were significantly lower in HL+S than UGFS and EVLA. VCSS scores were similar between EVLA and HL+S. PMID- 29033338 TI - Antibiotic-Resistance Genes in Waste Water. AB - Waste water and waste water treatment plants can act as reservoirs and environmental suppliers of antibiotic resistance. They have also been proposed to be hotspots for horizontal gene transfer, enabling the spread of antibiotic resistance genes between different bacterial species. Waste water contains antibiotics, disinfectants, and metals which can form a selection pressure for antibiotic resistance, even in low concentrations. Our knowledge of antibiotic resistance in waste water has increased tremendously in the past few years with advances in the molecular methods available. However, there are still some gaps in our knowledge on the subject, such as how active is horizontal gene transfer in waste water and what is the role of the waste water treatment plant in the environmental resistome? The purpose of this review is to briefly describe some of the main methods for studying antibiotic resistance in waste waters and the latest research and main knowledge gaps on the issue. In addition, some future research directions are proposed. PMID- 29033340 TI - Nonepileptic seizure provoked by cardiac dysrhythmia with STEMI. AB - Acute seizures represent 1% of all visits to emergency departments in the United States. While many acute seizures are correctly attributable to underlying epilepsy, approximately one-third of acute seizures are provoked by underlying and potentially life-threatening acute conditions. Many clinical syndromes associated with seizure-like activity are well-established and readily identified in the acute setting. Cardiac dysrhythmias are known causes of acute seizure-like activity and, if transient and not captured by electrocardiogram tracings during acute episodes, may be incorrectly diagnosed as epileptic seizures. We report a case of acute ST-segment elevation myocardial infarction presenting with acute symptomatic seizure due to occult transient cardiac dysrhythmia. PMID- 29033339 TI - Transmissible Viral Vaccines. AB - Genetic engineering now enables the design of live viral vaccines that are potentially transmissible. Some designs merely modify a single viral genome to improve on the age-old method of attenuation whereas other designs create chimeras of viral genomes. Transmission has the benefit of increasing herd immunity above that achieved by direct vaccination alone but also increases the opportunity for vaccine evolution, which typically undermines vaccine utility. Different designs have different epidemiological consequences but also experience different evolution. Approaches that integrate vaccine engineering with an understanding of evolution and epidemiology will reap the greatest benefit from vaccine transmission. PMID- 29033341 TI - Acute intractable headache and oculomotor nerve palsy associated with nicorandil: A case report. AB - Acute non-traumatic headaches with neurological deficits alarm emergency department (ED) physicians. Typically, a sudden headache with oculomotor nerve palsy involving a pupil indicates the possibility of a subarachnoid hemorrhage (SAH) due to an aneurysm originating from the posterior communicating artery. For the ED physician, thinking beyond the possibility of an SAH can be crucial. Here, we report on a 59-year-old woman who presented to the ED with an intractable headache and right ptosis. She had previously received nicorandil for paroxysmal atrial fibrillation in the cardiology clinic. Her vital signs were stable upon ED arrival. Neurological examination revealed a mild anisocoria with a sluggish response to light stimuli in the right eye. Adduction, supraduction, and infraduction were also limited in the right eye. Nuchal rigidity was not apparent. An urgent brain magnetic resonance image (MRI) with angiography was requested to assess for possible SAH, but revealed no aneurysm. Cerebrospinal fluid analysis was also unremarkable. The patient's headache and oculomotor nerve palsy improved completely after discontinuation of nicorandil for 3 days. To the best of our knowledge, this is the first case report on side effects of nicorandil presenting as a severe headache with reversible oculomotor nerve palsy involving a pupil, symptoms which mimicked a possible SAH due to aneurysm. PMID- 29033342 TI - Intentional cyanoacrylate ingestion: A rare cause of delayed gastric perforation requiring gastric wedge resection. AB - Cyanoacrylate (LOCTITE(r) 401TM) is a fast-acting adhesive available nationwide, with medical and household uses. Most cases of cyanoacrylate exposure are accidental and occur in children less than 5years old. Various routes of exposure have been reported including the dermal, oral, ocular, otic, nasal, and urethral routes; however, very few result in serious complication and mortality. Although a few cases of airway obstruction related to cyanoacrylate ingestion have been reported, intentional cyanoacrylate ingestion-induced gastrointestinal tract injury has scarcely been reported. In addition, there have been no reports of serious complications following intentional cyanoacrylate ingestion requiring surgical intervention. Herein, we report a case of intentional ingestion of cyanoacrylate in a 70-year-old man who required gastric wedge resection due to delayed gastric perforation. PMID- 29033343 TI - Symptomatic relief as an outcome in studies of nasogastric decompression in small bowel obstruction. PMID- 29033344 TI - A prospective study of ketamine as primary therapy for prehospital profound agitation. AB - OBJECTIVE: We investigated the effectiveness of ketamine as a primary therapy for prehospital profound agitation. METHODS: This was a prospective observational study of patients receiving 5mg/kg of intramuscular ketamine for profound agitation, defined as a score of +4 on the Altered Mental Status Scale (AMSS), a validated ordinal scale of agitation from -4 (unresponsive) to +4 (most agitated). The primary outcome was time to adequate sedation (AMSS<+1). Secondary outcomes included need for additional sedatives, intubation frequency, complications associated with ketamine, and mortality. RESULTS: Forty-nine patients were enrolled. Median age was 29years (range 18-66); 76% (37/49) were male. Median time to adequate sedation was 4.2min (95% CI: 2.5-5.9, range 1 25min) and 90% (44/49) had adequate sedation prehospital. Seven patients (14%) received a second sedative prehospital. Intubation occurred in 57% (28/49) of patients. Mechanical ventilation lasted <24h in 82% (23/28) of patients, and <48h in 96% (27/28) of patients. A single physician intubated 36% (10/28) of the patients. Complications related to ketamine included hypersalivation (n=9, 18%), vomiting (n=3, 6%), and emergence reaction (n=2, 4%). One patient died from complications of septic shock on hospital day 29, likely unrelated to ketamine. CONCLUSIONS: In patients with prehospital profound agitation, ketamine provides rapid effective sedation when used as a primary therapy. Intubation was common but accompanied by a short duration of mechanical ventilation and appears to have been subject to individual physician practice variation. PMID- 29033345 TI - Along the Colorado Trail: Assessing the average hikers' knowledge of altitude sickness. PMID- 29033346 TI - Emergency sonographers can identify and inject the flexor tendon sheaths in human cadaveric models. PMID- 29033347 TI - A multilevel stakeholder approach for identifying the determinants of implementation of government-funded community pharmacy services at the primary care level. AB - BACKGROUND: A key early step to enhance the integration of community pharmacy services (CPSs) into primary care practice is identifying key determinants of practice (i.e., critical circumstances that influence the implementation of such services). Involving relevant stakeholders in identifying key determinants enables findings to be more relevant to the context in which CPSs will be implemented. OBJECTIVE: To identify key determinants of practice that can influence the implementation of government-funded CPSs in a primary health network in Australia. METHODS: A stakeholder collaborative approach was used, encompassing two phases. In the first phase, semi-structured interviews were conducted with ground-level stakeholders in Western Sydney between August 2016 to October 2016. Framework analysis was used to code and analyse the data from the interviews into determinants of pharmacy practice. In the second phase, a workshop was conducted with a mixed-group of ground-level and system-level stakeholders from the primary health network to identify key determinants. A four quadrant prioritization matrix was employed in the workshop to classify determinants based on their importance and feasibility. RESULTS: Sixty-five determinants of practice that can influence CPS implementation were identified in Phase 1. These determinants were allocated at different levels of the healthcare system, and can exist as a barrier or facilitator or both. Twenty-two key determinants were selected in Phase 2, of which three were agreed to be addressed initially: (1) Patient understanding of the aims of the service; (2) Commitment of the organization and its leaders to provide services; (3) Coordination of the healthcare system to prompt collaboration between pharmacists and GPs. CONCLUSIONS: This collaborative stakeholder approach identified a set of key determinants of pharmacy practice in this Australian primary care setting. To enhance the implementation of CPSs in this region, initial efforts should be aimed at developing implementation strategies based on these key determinants of practice. PMID- 29033348 TI - Design and synthesis of benzimidazole-based Rho kinase inhibitors for the treatment of glaucoma. AB - Rho kinase inhibitors (ROCK II) play a key role in glaucoma management attributed to their IOP lowering ability and neuroprotective effects. In the present study, a series of novel benzimidazole derivatives (9a-m) has been synthesized and evaluated for their IOP lowering, Rho kinase inhibitory and antioxidant properties. The synthesized compounds were found to be lipophilic and showed a significant IOP lowering effect both in the treated and the contralateral eye comparable to the reference standard fasudil. The nitrophenyl piperazine substituted compound 9j exhibited significant IOP lowering (51.56%) and an inhibition of 57.25 and 77.92% towards ROCK II enzyme at a concentration of 0.5 and 1 mM respectively. It possessed a considerable free radical scavenging activity exhibiting an IC50 value of 95.49 ug/mL in DPPH assay. The molecular docking studies of compound 9j indicated the binding of the compound at the active site of recombinant human ROCK II which makes it a promising antiglaucoma agent. PMID- 29033349 TI - A polymorphism in the glucocorticoid receptor gene is associated with refractory hypotension in premature infants. AB - BACKGROUND: Glucocorticoids play an important role in endocrine control. The association of glucocorticoid receptor (GR) gene polymorphisms with altered sensitivity to glucocorticoid therapy has been reported in adults. However, there are few such reports in infants. The present study analyzed the prevalence of four GR polymorphisms in preterm infants born before 30 weeks of gestation and determined the associations between these polymorphisms and clinical outcomes in the infants. METHODS: Totally, 41 preterm infants born at two hospitals in Fukushima were retrospectively screened for the presence of four GR gene polymorphisms, using a TaqMan single-nucleotide polymorphism genotyping assay. The effect of GR gene polymorphisms on clinical outcomes during hospitalization was evaluated. The following primary clinical outcomes were assessed: refractory hypotension in the acute phase and/or severe bronchopulmonary dysplasia, maximum dopamine and dobutamine doses administered, and total hydrocortisone dose administered in the first 48 h of life. Multivariate analysis with logistic regression was used to assess the association between clinical factors and refractory hypotension. RESULTS: Of the four GR polymorphisms, only the BclI polymorphism was detected. The genotype distribution was as follows: C/C, 33; C/G, 8; and G/G, 0 infants. Significant differences were observed between the C/C and C/G genotypes with respect to the following variables: refractory hypotension (6% vs. 50%), dopamine dose [3.0 (2.0-4.0) vs. 4.8 (4.0-7.5) MUg/kg/min], dobutamine dose [2.4 (0.0-3.6) vs. 4.0 (0-10.0) MUg/kg/min], and total hydrocortisone dose administered in the first 48 h of life [2.0 (0-10.0) vs. 6.0 (0-12.0) mg/kg]. Multivariate analysis showed that the BclI genotype (C/C) was significantly less associated with refractory hypotension in the acute phase (odds ratio, 0.008; 95% confidence interval, 0.000-0.371; p = 0.013). CONCLUSION: The incidence of refractory hypotension in infants with the C/C genotype was initially expected to be higher than that in infants with the C/G genotype. However, the results of this study were rather different from what we originally expected. The suppressive effect of antenatal steroid use on the HPA axis of the preterm infants with the BclI variant may be associated with refractory hypotension in the acute phase. PMID- 29033350 TI - Phenotypical characterization of human rhinovirus infections in severely premature children. AB - BACKGROUND: Human Rhinovirus (HRV) has been identified as the most common cause of acute respiratory infections and hospitalizations in premature children. It is unclear if premature children are more susceptible to HRV due to their decreased pulmonary reserve or because they have enhanced lower airway reactivity to HRV. METHODS: We conducted a retrospective analysis of the clinical respiratory presentation of all PCR-confirmed HRV infections in full-term and premature children aged <=3 years in our institution. Standardized respiratory distress scores were developed to examine lower airway obstruction (i.e., wheezing, hyperinflation, and sub-costal retractions) along with markers of decreased pulmonary reserve (hypoxemia and tachypnea) in young children with HRV infections. Demographic and clinical variables were obtained from reviewing electronic medical records (EMR). RESULTS: This study included a total of 205 children; 71% of these children were born full-term (>37 weeks gestation), 10% preterm (32-37 weeks) and 19% severely premature (<32 weeks). Our results demonstrated that: 1) HRV infections in the first 3 years of life were associated with higher overall respiratory distress scores in severely premature children relative to children born preterm or full-term; 2) HRV-infected severely premature children <=3 years old were more likely to have lower airway obstruction than HRV-infected children born preterm or full-term; and 3) other clinical signs of respiratory distress such as tachypnea and hypoxemia were not more common in severely premature than in preterm and full-term children during an HRV infection. CONCLUSIONS: Our results indicate that HRV infections in severely premature children are associated with lower airway obstruction rather than hypoxemia or tachypnea. The latter suggests that enhanced airway reactivity is the underlying mechanism for the increased susceptibility to HRV in severely premature children. Longitudinal studies are needed to understand why premature babies develop airway hyper-reactivity to HRV and the long-term effects of early HRV infection in this population. PMID- 29033351 TI - Mouse Cutaneous Melanoma Induced by Mutant BRaf Arises from Expansion and Dedifferentiation of Mature Pigmented Melanocytes. AB - To identify the cells at the origin of melanoma, we combined single-cell lineage tracing and transcriptomics approaches with time-lapse imaging. A mouse model that recapitulates key histopathological features of human melanomagenesis was created by inducing a BRafV600E-driven melanomagenic program in tail interfollicular melanocytes. Most targeted mature, melanin-producing melanocytes expanded clonally within the epidermis before losing their differentiated features through transcriptional reprogramming and eventually invading the dermis. Tumors did not form within interscales, which contain both mature and dormant amelanotic melanocytes. The hair follicle bulge, which contains melanocyte stem cells, was also refractory to melanomagenesis. These studies identify varying tumor susceptibilities within the melanocytic lineage, highlighting pigment-producing cells as the melanoma cell of origin, and indicate that regional variation in tumor predisposition is dictated by microenvironmental cues rather than intrinsic differences in cellular origin. Critically, this work provides in vivo evidence that differentiated somatic cells can be reprogrammed into cancer initiating cells. PMID- 29033352 TI - The Primate-Specific Gene TMEM14B Marks Outer Radial Glia Cells and Promotes Cortical Expansion and Folding. AB - Human brain evolution is associated with expansion and folding of the neocortex. Increased diversity in neural progenitor (NP) populations (such as basally located radial glia [RG], which reside in an enlarged outer subventricular zone [OSVZ]) likely contributes to this evolutionary expansion, although their characteristics and relative contributions are only partially understood. Through single-cell transcriptional profiling of sorted human NP subpopulations, we identified the primate-specific TMEM14B gene as a marker of basal RG. Expression of TMEM14B in embryonic NPs induces cortical thickening and gyrification in postnatal mice. This is accompanied by SVZ expansion, the appearance of outer RG like cells, and the proliferation of multiple NP subsets, with proportional increases in all cortical layers and normal lamination. TMEM14B drives NP proliferation by increasing the phosphorylation and nuclear translocation of IQGAP1, which in turn promotes G1/S cell cycle transitions. These data show that a single primate-specific gene can drive neurodevelopmental changes that contribute to brain evolution. PMID- 29033354 TI - Confronting the misbeliefs pertaining to blood donation and transfusion practices in India. PMID- 29033353 TI - Melanocyte Stem Cell Activation and Translocation Initiate Cutaneous Melanoma in Response to UV Exposure. AB - Melanoma is one of the deadliest cancers, yet the cells of origin and mechanisms of tumor initiation remain unclear. The majority of melanomas emerge from clear skin without a precursor lesion, but it is unknown whether these melanomas can arise from melanocyte stem cells (MCSCs). Here we employ mouse models to define the role of MCSCs as melanoma cells of origin, demonstrate that MCSC quiescence acts as a tumor suppressor, and identify the extrinsic environmental and molecular factors required for the critical early steps of melanoma initiation. Specifically, melanomas originate from melanoma-competent MCSCs upon stimulation by UVB, which induces MCSC activation and translocation via an inflammation dependent process. Moreover, the chromatin-remodeling factor Hmga2 in the skin plays a critical role in UVB-mediated melanomagenesis. These findings delineate melanoma formation from melanoma-competent MCSCs following extrinsic stimuli, and they suggest that abrogation of Hmga2 function in the microenvironment can suppress MCSC-originating cutaneous melanomas. PMID- 29033355 TI - Evaluation of the effect of serratus anterior plane block for pain treatment after video-assisted thoracoscopic surgery. AB - BACKGROUND: Analgesia following video-assisted thoracoscopic surgery (VATS) is important for the prevention of postoperative pulmonary complications. Various regional methods of anaesthesia are currently being used to achieve this goal. In our study, we aim to assess the effectiveness of SAPB on postoperative VATS analgesia in our study. METHODS: A total of 40 patients aged between 18 and 70 years, those who were in the Society of Anaesthesiologists (ASA) I-III class and underwent VATS were included in the study. Patients were randomised to either group T (intravenous patient-controlled analgesia tramadol; n=20) or group S (intravenous patient-controlled analgesia tramadol+SAPB; n=20). Visual Analogue Scale (VAS) was used for postoperative pain, the primary outcome measure, were evaluated at post-anaesthetic care unit (PACU), 2, 6, 12, and 24 hours. Secondary outcomes included the postoperative 2nd, 6th, 12th, and 24th hour follow-up results were evaluated to identify the quantity of tramadol use, Ramsay sedation scale (RSS), side effect profile, and additional analgesic use. RESULTS: The VAS scores between the two groups were found to be statistically significantly lower in group S during the PACU observation (P<0.05). The mean values of the quantity of tramadol use at the 6th, 12th, and 24th hours were found to be statistically significantly lower in group S (P<0.05). There was no statistically significant difference in the rate of side effects and RSS outcomes between the groups (P>0.05). CONCLUSIONS: Our study results suggest that SAPB is an effective treatment option for VATS analgesia. PMID- 29033356 TI - Benefits of intraoperative analgesia guided by the Analgesia Nociception Index (ANI) in bariatric surgery: An unmatched case-control study. AB - INTRODUCTION: Analgesia Nociception Index (ANI) has been proposed for the evaluation of the nociception-antinociception balance in the perioperative period. In obese patients, where the management of analgesia may be rendered difficult by pharmacological changes, we hypothesised that the monitoring of analgesia with ANI would reduce intraoperative opioid consumption during bariatric surgery. METHODS: This monocentric, observational, unmatched case control study aimed to compare perioperative data from obese subjects (body mass index >=35kgm-2) during bariatric surgery with or without the use of ANI monitoring (ANI+ group versus ANI- group). Intraoperative analgesia was provided by injection of sufentanil, which was performed according to the clinician's assessment in the ANI- group or to the ANI value in the ANI+ group. The primary outcome was the mean hourly intraoperative sufentanil requirement. Secondary outcomes included the need for postoperative morphine titration, incidence of nausea and vomiting, respiratory distress and pain scores in the first 24hours. RESULTS: Between December 2013 and September 2016, 60 obese patients (i.e. 30 per group) were included. The mean hourly consumption of sufentanil was significantly lower in the ANI+ group (0.15+/-0.05MUgkg-1h-1 versus 0.17+/-0.05MUgkg-1h-1, P=0.038). We found no difference between groups regarding the incidence of nausea and vomiting, acute respiratory distress, the need for postoperative morphine titration, or pain scores in the first 24 postoperative hours. CONCLUSION: The use of ANI monitoring might reduce intraoperative consumption of sufentanil during bariatric surgery but does not appear to be accompanied by a reduction in its side effects. PMID- 29033357 TI - A history of community-acquired hypervirulent Klebsiella pneumoniae severe sepsis. PMID- 29033358 TI - Predictive factors of early postoperative respiratory complications after tonsillectomy in children with unidentified risks for this complication. AB - INTRODUCTION: Tonsillectomy is considered as a therapeutic option in obstructive sleep apnoea syndrome (OSAS). Postoperative respiratory failure is a complication that can require respiratory support. The main objective of our study is to determine risk factors of postoperative respiratory complications in children undergoing tonsillectomy. MATERIAL AND METHODS: This is a retrospective single centre observational study including patients with unanticipated postoperative respiratory failure. Patients with a planned preoperative intensive care admission were excluded (age is lower than 2 years, overweight (>95% percentile of BMI), moderate or severe asthma, major medical conditions). Those patients were compared with randomly selected control patients. Factors studied were: age, weight, indication of surgery, ASA status, preoperative illness conditions, durations of surgery and anaesthesia and administered medications. Statistics used a univariate analysis and a multivariate logistic regression. RESULTS: Eight hundred and five patients underwent adenotonsillectomy during the study period and 25 developed postoperative respiratory failure. These patients were compared to 103 non-complicated control patients. Age (<4 years), weight (<18kg), indication of surgery (as SOAS), laryngomalacia, stable and minor congenital cardiac malformation and duration of anaesthesia were found statistically associated. Multivariate analysis found that weight <18kg is a risk factor associated with the occurrence of postoperative respiratory failure. Overall the model shows a strong accuracy with an area under the curve of ROC analysis of 0.9 [95% confidence interval: 0.85-0.95]. DISCUSSION: Our study found that weight <18kg is a major risk factor for predicting a postoperative respiratory complication. PMID- 29033359 TI - Immediate postoperative plasma neutrophil gelatinase-associated lipocalin to predict acute kidney injury after major open abdominal aortic surgery: A prospective observational study. AB - INTRODUCTION: Plasma neutrophil gelatinase-associated lipocalin (pNGAL) has been used as a biomarker in acute kidney injury (AKI). AKI is a common postoperative complication of aortic surgery. We sought to evaluate the performance of the immediately postoperative pNGAL level in comparison with the serum creatinine (SCr) level in predicting AKI and the need for renal replacement therapy (RRT). PATIENTS AND METHODS: Prospective non-interventional study in a university hospital. Fifty patients undergoing elective or emergent major intra-abdominal aortic surgery were included. Comparisons between groups of patients with or without postoperative AKI, according to KDIGO staging, were made. Performance of NGAL was determined by examining the area under receiver operating characteristic (AUROC) curve. RESULTS: The incidence of AKI was 36%. At H+2, pNGAL values in AKI and non-AKI patients, respectively, were 221 [133-278] versus 50 [50-90] ng/mL (P<0.0001), and SCr values were 115 [96-178] versus 90 [72-99] MUmol/L (P<0.0008). The AUROC of pNGAL for prediction of AKI was 0.90 (95% CI: 0.81-0.98) with an optimal cutoff of 112ng/mL, a sensitivity of 83%, specificity of 84%, and positive and negative predictive values of 75% and 90%, respectively. SCr produced an AUROC curve of 0.79 (0.65-0.92) at a cutoff of 110MUmol/L. The diagnostic performance of pNGAL was significantly better than that of SCr (P=0.039). PNGAL at H+2 better predicted the RRT requirement [0.96 (0.90-1.0)] compared to SCr [0.86 (0.73-0.98)], but this difference was not statistically significant. CONCLUSIONS: A 2-hour postoperative determination of pNGAL outperformed SCr level in predicting postoperative AKI after major aortic surgery. PMID- 29033360 TI - Veno-arterial-ECMO in the intensive care unit: From technical aspects to clinical practice. AB - The use of veno-arterial extracorporeal membrane oxygenation (VA-ECMO) as a salvage therapy in cardiogenic shock is becoming of current practice. While VA ECMO is potentially a life-saving technique, results are sometimes mitigated, emphasising the need for selecting the right indication in the right patient. This relies upon a clear definition of the individual therapeutic project, including the potential for recovery as well as the possible complications associated with VA-ECMO. To maximise the benefits of VA-ECMO, the basics of extracorporeal circulation should be perfectly understood since VA-ECMO can sometimes be detrimental. Hence, to be successful, VA-ECMO should be used by teams with sufficient experience and initiated after a thorough multidisciplinary discussion considering patient's medical history, pathology as well the anticipated evolution of the disease. PMID- 29033363 TI - Convergent Transcriptional Programs Regulate cAMP Levels in C. elegans GABAergic Motor Neurons. AB - Both transcriptional regulation and signaling pathways play crucial roles in neuronal differentiation and plasticity. Caenorhabditis elegans possesses 19 GABAergic motor neurons (MNs) called D MNs, which are divided into two subgroups: DD and VD. DD, but not VD, MNs reverse their cellular polarity in a developmental process called respecification. UNC-30 and UNC-55 are two critical transcription factors in D MNs. By using chromatin immunoprecipitation with CRISPR/Cas9 knockin of GFP fusion, we uncovered the global targets of UNC-30 and UNC-55. UNC-30 and UNC-55 are largely converged to regulate over 1,300 noncoding and coding genes, and genes in multiple biological processes, including cAMP metabolism, are co regulated. Increase in cAMP levels may serve as a timing signal for respecification, whereas UNC-55 regulates genes such as pde-4 to keep the cAMP levels low in VD. Other genes modulating DD respecification such as lin-14, irx 1, and oig-1 are also found to affect cAMP levels. PMID- 29033364 TI - [Recurrent cystisis: No medicine preventive means]. AB - OBJECTIVE: To estimate from the literature review, the interest of hygienic and behavioural measures and the use of food supplements (herbal) to prevent female urinary tract infection. METHODS: Pubmed research was focused on the efficiency of prophylactic measures in recurrent cystisis management. RESULTS: Due to many predisposing factors such as anatomical charasteristics, hydration and lifestyle, cystisis is more common in female subjects than in male. The infection is mostly caused by uropathgenic Escherichia coli which is mostly found in the intestine. Recomendations propose a better use of antibiotics that causes undesirable side effects (such as nausea, candidiasis) and favours the development of resistant bacterial strains. Hygienic measures, good hydration, and respecting a good urinary rythm help to protect from new infectious episodes. Food supplements such as cranberry or D-mannose can also interfere with the recurrence of cystisis, by preventing the bacteria sticking to urinary tract epithelia. Their efficency is relative and seems to be dose-dependent. Better tolerated than prophylactic antibiotic treatments, they can increase times of respite. CONCLUSION: Using prophylactic treatment still have an interest, even if they are questionable. Moreover, the combination of these methods (diet and lifestyle advice) can be an alternative to long-term prophylactic medical treatment. PMID- 29033362 TI - An Effective Feedback Loop between Cell-Cell Contact Duration and Morphogen Signaling Determines Cell Fate. AB - Cell-cell contact formation constitutes an essential step in evolution, leading to the differentiation of specialized cell types. However, remarkably little is known about whether and how the interplay between contact formation and fate specification affects development. Here, we identify a positive feedback loop between cell-cell contact duration, morphogen signaling, and mesendoderm cell fate specification during zebrafish gastrulation. We show that long-lasting cell cell contacts enhance the competence of prechordal plate (ppl) progenitor cells to respond to Nodal signaling, required for ppl cell-fate specification. We further show that Nodal signaling promotes ppl cell-cell contact duration, generating a positive feedback loop between ppl cell-cell contact duration and cell-fate specification. Finally, by combining mathematical modeling and experimentation, we show that this feedback determines whether anterior axial mesendoderm cells become ppl or, instead, turn into endoderm. Thus, the interdependent activities of cell-cell signaling and contact formation control fate diversification within the developing embryo. PMID- 29033366 TI - The Bermuda triangle: Chronic kidney disease, contrast-induced nephropathy, and atrial fibrillation. PMID- 29033365 TI - Laser procedure for female urinary stress incontinence: A review of the literature. AB - INTRODUCTION: There is increasing interest in noninvasive treatment of female stress urinary incontinence (SUI), including a vaginal laser procedure. In view of a lack of data on this technique, we conducted a non-systematic review of the literature. METHODS: We reviewed studies concerning the laser treatment of SUI from PubMed, Medline, the Cochrane Library and Web of Science. Study design, outcome measure, number of participants, procedural complications and results were analyzed. RESULTS: The use of laser treatment of female SUI has been described in 7 prospective, single-center and non-comparative (no control group) studies, all of which used an erbium YAG or a CO2 laser in thermal non-ablative treatment. Primary outcome was ICIQ-UI-SF score in six studies, and pad tests in one study. Follow-up ranged from 5 to 36months. Improvement rates ranged from 62% to 78%. No major adverse events were noted. Minor side effects included sensation of warmth, increased vaginal discharge and transient urge urinary incontinence. CONCLUSION: The efficacy of vaginal laser treatment of SUI has not been assessed in comparative studies. More rigorous and adequately powered trials are required to assess the relative benefits and adverse event profile of laser treatment of SUI, as compared with other minimally invasive procedures. PMID- 29033361 TI - Binding of PLD2-Generated Phosphatidic Acid to KIF5B Promotes MT1-MMP Surface Trafficking and Lung Metastasis of Mouse Breast Cancer Cells. AB - Little is known about the cellular events promoting metastasis. We show that knockout of phospholipase D2 (PLD2), which generates the signaling lipid phosphatidic acid (PA), inhibits lung metastases in the mammary tumor virus (MMTV)-Neu transgenic mouse breast cancer model. PLD2 promotes local invasion through the regulation of the plasma membrane targeting of MT1-MMP and its associated invadopodia. A liposome pull-down screen identifies KIF5B, the heavy chain of the motor protein kinesin-1, as a new PA-binding protein. In vitro assays reveal that PA specifically and directly binds to the C terminus of KIF5B. The binding between PLD2-generated PA and KIF5B is required for the vesicular association of KIF5B, surface localization of MT1-MMP, invadopodia, and invasion in cancer cells. Taken together, these results identify a role of PLD2-generated PA in the regulation of kinesin-1 motor functions and breast cancer metastasis and suggest PLD2 as a potential therapeutic target for metastatic breast cancer. PMID- 29033367 TI - Stent implantation and vascular healing of a spontaneous coronary artery dissection assessed by optical coherence tomography in a patient with acute coronary syndrome. AB - A 60-year old woman with non-ST-segment elevation myocardial infarction, underwent coronary angiogram combined with optical coherence tomography (OCT) revealing a long dissection in the right coronary artery. The patient experienced peri-procedural chest pain, the electrocardiogram showed ST-segment elevations, and compromised coronary blood flow, why mechanical revascularization with percutaneous coronary intervention (PCI) was indicated. At 1-month follow-up, OCT revealed early, competent vascular healing, and a distal stenosis was treated with PCI. The patient has been asymptomatic since the procedure for three years. PMID- 29033368 TI - A DNA Vaccine Protects Human Immune Cells against Zika Virus Infection in Humanized Mice. AB - A DNA vaccine encoding prM and E protein has been shown to induce protection against Zika virus (ZIKV) infection in mice and monkeys. However, its effectiveness in humans remains undefined. Moreover, identification of which immune cell types are specifically infected in humans is unclear. We show that human myeloid cells and B cells are primary targets of ZIKV in humanized mice. We also show that a DNA vaccine encoding full length prM and E protein protects humanized mice from ZIKV infection. Following administration of the DNA vaccine, humanized DRAG mice developed antibodies targeting ZIKV as measured by ELISA and neutralization assays. Moreover, following ZIKV challenge, vaccinated animals presented virtually no detectable virus in human cells and in serum, whereas unvaccinated animals displayed robust infection, as measured by qRT-PCR. Our results utilizing humanized mice show potential efficacy for a targeted DNA vaccine against ZIKV in humans. PMID- 29033369 TI - Fecal Clostridium symbiosum for Noninvasive Detection of Early and Advanced Colorectal Cancer: Test and Validation Studies. AB - OBJECTIVE: Current non-invasive early detection of colorectal cancer (CRC) requires improvement. We aimed to identified a fecal Clostridium symbiosum-based biomarker for early and advanced colorectal cancer detection. DESIGN: In the test stage, the relative abundance of Clostridium symbiosum (C. symbiosum) was measured by qPCR in 781 cases including 242 controls, 212 colorectal adenoma (CRA) patients, 109 early CRC (tumor restricted to the submucosa) patients, 218 advanced CRC patients. The prediction accuracy was compared to Fusobacterium nucleatum (F. nucleatum), fecal immunochemical test (FIT) and CEA (carcinoembryonic antigen) and validated in an independent cohort of 256 subjects. Current status of the trial:ongoing/still enrolling. Primary endpoint:June, 2017 (Clinicaltrials.gov Identifier NCT02845973). RESULTS: Significant stepwise increase of C. symbiosum abundance was found in CRA, early CRC and advanced CRC (P<0.01). C. symbiosum outperformed all the other markers in early CRC prediction performance. The combination of C. symbiosum and FIT achieved better performance (0.803 for test cohort and 0.707 for validation cohort). For overall discrimination of CRCs, the combination of all above markers achieved the performance of 0.876. CONCLUSIONS: Fecal C. symbiosum is a promising biomarker for early and noninvasive detection of colorectal cancer, being more effective than F. nucleatum, FIT and CEA. Combining C. symbiosum and FIT or CEA may improve the diagnosis power. PMID- 29033370 TI - d-Ribose as a Contributor to Glycated Haemoglobin. AB - Glycated haemoglobin (HbA1c) is the most important marker of hyperglycaemia in diabetes mellitus. We show that d-ribose reacts with haemoglobin, thus yielding HbA1c. Using mass spectrometry, we detected glycation of haemoglobin with d ribose produces 10 carboxylmethyllysines (CMLs). The first-order rate constant of fructosamine formation for d-ribose was approximately 60 times higher than that for d-glucose at the initial stage. Zucker Diabetic Fatty (ZDF) rat, a common model for type 2 diabetes mellitus (T2DM), had high levels of d-ribose and HbA1c, accompanied by a decrease of transketolase (TK) in the liver. The administration of benfotiamine, an activator of TK, significantly decreased d-ribose followed by a decline in HbA1c. In clinical investigation, T2DM patients with high HbA1c had a high level of urine d-ribose, though the level of their urine d-glucose was low. That is, d-ribose contributes to HbA1c, which prompts future studies to further explore whether d-ribose plays a role in the pathophysiological mechanism of T2DM. PMID- 29033371 TI - A Small Molecule Inhibitor of the beta-Catenin-TCF4 Interaction Suppresses Colorectal Cancer Growth In Vitro and In Vivo. AB - Colorectal cancer is associated with aberrant activation of the Wnt pathway. beta Catenin plays essential roles in the Wnt pathway by interacting with T-cell factor 4 (TCF4) to transcribe oncogenes. We synthesized a small molecule, referred to as HI-B1, and evaluated signaling changes and biological consequences induced by the compound. HI-B1 inhibited beta-catenin/TCF4 luciferase activity and preferentially caused apoptosis of cancer cells in which the survival is dependent on beta-catenin. The formation of the beta-catenin/TCF4 complex was disrupted by HI-B1 due to the direct interaction of HI-B1 with beta-catenin. Colon cancer patient-derived xenograft (PDX) studies showed that a tumor with higher levels of beta-catenin expression was more sensitive to HI-B1 treatment, compared to a tumor with lower expression levels of beta-catenin. The different sensitivities of PDX tumors to HI-B1 were dependent on the beta-catenin expression level and potentially could be further exploited for biomarker development and therapeutic applications against colon cancer. PMID- 29033372 TI - Chloroquine, a FDA-approved Drug, Prevents Zika Virus Infection and its Associated Congenital Microcephaly in Mice. AB - Zika virus (ZIKV) has become a global public health emergency due to its rapidly expanding range and its ability to cause severe congenital defects such as microcephaly. However, there are no FDA-approved therapies or vaccines against ZIKV infection. Through our screening of viral entry inhibitors, we found that chloroquine (CQ), a commonly used antimalarial and a FDA-approved drug that has also been repurposed against other pathogens, could significantly inhibit ZIKV infection in vitro, by blocking virus internalization. We also demonstrated that CQ attenuates ZIKV-associated morbidity and mortality in mice. Finally, we proved that CQ protects fetal mice from microcephaly caused by ZIKV infection. Our methodology of focusing on previously identified antivirals in screens for effectiveness against ZIKV proved to be a rapid and efficient means of discovering new ZIKV therapeutics. Selecting drugs that were previously FDA approved, such as CQ, also improves the likelihood that they may more quickly reach stages of clinical testing and use by the public. PMID- 29033374 TI - Influence of visual impairment and hearing impairment on functional dependence status among people in Taiwan-An evaluation using the WHODAS 2.0 score. AB - BACKGROUND: Visual impairment (VI) and hearing impairment (HI) are the two most common types of sensory disability encountered clinically. However, VI and HI result in different limitations in daily life. We assessed the level of functioning in patients with VI or HI based on the International Classification of Functioning, Disability, and Health. METHODS: This nationwide, cross-sectional study included 312 people with VI and 540 people with HI. Each participant's degree of functioning and disability was evaluated using the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0). The standardized WHODAS 2.0 scores ranged from 0 (least difficulty) to 100 (most difficulty). RESULTS: Patients with VI and those with HI had a mean (+/-standard error) 32 item WHODAS 2.0 score of 42.4 +/- 2.9 and 27.1 +/- 1.6, respectively. The degree of restriction was positively related to the level of VI. Specifically, the patients with VI and a WHODAS 2.0 score of 33.7-35.3 or higher were likely to experience barriers to accessing mobility products, communication products, and education products. Furthermore, patients with a score of 42.9 or higher might experience barriers to accessing ingestion products and living products. CONCLUSION: WHODAS 2.0 scores are strongly correlated with the severity of VI. Mild VI should be targeted for treatment and referral as early as possible. Compared with the patients with HI, the patients with VI more frequently experience barriers to accessing environmental factors. PMID- 29033375 TI - Intraprocedural arterial perforation during neuroendovascular therapy: Preliminary result of a dual-trained endovascular neurosurgeon in the neurosurgical hybrid operating room. AB - BACKGROUND: Intraprocedural arterial perforation (IPAP) is a potentially dismal complication of neuroendovascular therapy with high mortality and morbidity rates. The management of IPAP with the techniques described has been well established, but rescue results from the dual-trained endovascular neurosurgeon in the neurosurgical hybrid operating room (OR) are rarely reported. Here, we report five cases of successful rescue of IPAP in the neurosurgical hybrid OR and compare them with other series. METHODS: Between December 2009 and December 2013, 146 intracranial neuroendovascular procedures were performed in the hybrid operating room of Taichung Veterans General Hospital. A total of five patients with IPAP were identified. Postoperative clinical outcome was evaluated by Glasgow Coma Scale scores and postoperative 3-month modified Rankin Scale. RESULTS: The causes of the IPAP were coil protrusion (n = 3), microcatheter perforation (n = 1), and microwire penetration (n = 1). Two cases involved emergent ruptured aneurysms, while three cases occurred during elective procedures. Salvage treatment with emergent external ventricular drainage (EVD) was applied in all five cases. The average time-to-first-EVD was 16.25 min, and the average time-to-patent-EVD was 32.5 min. Postoperative 3-month outcome was good recovery (mRS <= 2) in all five cases. The zero mortality rate in our series is the most encouraging result in the published literature. CONCLUSION: IPAP can be rescued successfully with an aggressive approach and quick conversion to backup surgery by a dual-trained endovascular neurosurgeon in the hybrid OR. The value of the hybrid OR in neuroendovascular therapy should be further investigated in the future. PMID- 29033373 TI - Evaluating the Causal Link Between Malaria Infection and Endemic Burkitt Lymphoma in Northern Uganda: A Mendelian Randomization Study. AB - BACKGROUND: Plasmodium falciparum (Pf) malaria infection is suspected to cause endemic Burkitt Lymphoma (eBL), but the evidence remains unsettled. An inverse relationship between sickle cell trait (SCT) and eBL, which supports that between malaria and eBL, has been reported before, but in small studies with low power. We investigated this hypothesis in children in a population-based study in northern Uganda using Mendelian Randomization. METHODS: Malaria-related polymorphisms (SCT, IL10, IL1A, CD36, SEMA3C, and IFNAR1) were genotyped in 202 eBL cases and 624 controls enrolled during 2010-2015. We modeled associations between genotypes and eBL or malaria using logistic regression. FINDINGS: SCT was associated with decreased risk of eBL (adjusted odds ratio [OR] 0.37, 95% CI 0.21 0.66; p=0.0003). Decreased risk of eBL was associated with IL10 rs1800896-CT (OR 0.73, 95% CI 0.50-1.07) and -CC genotypes (OR 0.53, 95% CI 0.29-0.95, ptrend=0.019); IL1A rs2856838-AG (OR 0.56, 95% CI 0.39-0.81) and -AA genotype (OR 0.50, 95% CI 0.28-1.01, ptrend=0.0016); and SEMA3C rs4461841-CT or -CC genotypes (OR 0.57, 95% CI 0.35-0.93, p=0.0193). SCT and IL10 rs1800896, IL1A rs2856838, but not SEMA3C rs4461841, polymorphisms were associated with decreased risk of malaria in the controls. INTERPRETATION: Our results support a causal effect of malaria infection on eBL. PMID- 29033376 TI - Evolution of Prophylaxis Protocols for Venous Thromboembolism in Neurosurgery: Results from a Prospective Comparative Study on Low-Molecular-Weight Heparin, Elastic Stockings, and Intermittent Pneumatic Compression Devices. AB - BACKGROUND: The incidence of venous thromboembolism (VT) in neurosurgical practice is astonishingly high, representing a major cause of morbidity and mortality. Prophylaxis strategies include elastic stockings, low-molecular-weight heparin (LMWH), and intermittent pneumatic compression (IPC) devices. OBJECTIVE: To assess the safety and efficacy of 2 different VT prophylaxis protocols implemented in a European neurosurgical center. METHODS: All patients admitted for neurosurgical intervention between 2012 and 2016 were stratified as low, moderate, and high risk of VT and received a combination of elastic stockings and LMWH. The protocol was modified in 2014 with the inclusion of perioperative IPC devices for all patients and only in the high-risk group also postoperatively. RESULTS: At time of post-hoc analysis, data obtained from patients included in this study before 2014 (Protocol A, 3169 patients) were compared with those obtained after the introduction of IPC (Protocol B, 3818 patients). Among patients assigned to protocol A, 73 (2.3%) developed deep-vein thrombosis (DVT) and 28 (0.9%) developed pulmonary embolism (PE), 9 of which were fatal (0.3%). Among patients assigned to protocol B, 32 developed DVT (0.8%) and 7 (0.18%) developed PE, with 2 eventually resulting in the death of the patient. A post-hoc analysis confirmed that the use of preoperative LMWH was not associated with a statistically significant greater risk of postoperative bleeding. CONCLUSIONS: This study, despite its limitations of the nonrandomized design, seems to suggest that perioperative IPC devices are a non-negligible support in the prophylaxis of clinically symptomatic DVT and PE. PMID- 29033377 TI - Proposed Treatment Paradigm for Intracranial Chondrosarcomas Based on Multidisciplinary Coordination. AB - OBJECTIVES: There was no consensus regarding the treatment of intracranial chondrosarcoma (CSA). The study aimed to evaluate the adverse factors for progression-free survival (PFS) and overall survival (OS) and to propose a treatment strategy for CSA. METHODS: The clinical chart and radiographic data of 106 consecutive cases (mesenchymal and conventional CSA in 18 and 88 patients, respectively) of surgically treated CSAs were retrospectively reviewed. RESULTS: Gross total resection was achieved in 43 patients (40.6%), and adjuvant radiotherapy was administered in 45 patients. After a mean follow-up duration of 47.8 months, 38 patients (37.3%) experienced recurrence. PFS and disease-specific OS at 5 years was 57.7% and 74.4%. Independent adverse factors for PFS were previous surgery (hazard ratio [HR] 2.261; P = 0.028), increased lesion size (HR, 1.298; P = 0.026), extent of surgical resection (HR, 3.226; P < 0.001), malignant pathology (HR, 2.018; P = 0.003), and postoperative radiotherapy (HR, 3.246; P = 0.001). The stereotactic radiosurgery subgroup presented best 5-year PFS of 88.9%, and a linear accelerator prolonged the mean PFS time (57.0 months) compared with no radiation (38.1 months). In the incomplete resection subgroup (n = 63), radiotherapy significantly benefited tumor control (HR, 2.101; P = 0.016). Extent of surgical resection (HR, 1.797; P = 0.026) and malignant disease (HR, 1.717; P = 0.030) were associated with OS. CONCLUSIONS: Intracranial CSAs were not completely amendable by surgery alone. Gross total resection as far as possible plus radiation were necessary for mesenchymal CSA and conventional CSA with active growth or residual tumor. Stereotactic radiosurgery was an alternative if proton therapy was unavailable. A future study with a large cohort is required to verify our findings. PMID- 29033378 TI - Citizens Urge U.S. Food and Drug Administration to Restrict High-Potency Opioids. PMID- 29033379 TI - Is Vertebral Column Resection Necessary in Correcting Severe and Rigid Thoracic Kyphoscoliosis? A Single-Institution Surgical Experience. AB - BACKGROUND: Three-column spinal osteotomies were developed to address severe and stiff kyphoscoliosis. However, the optimal choice of osteotomy in these patients is still unclear. This retrospective study aims to compare the outcomes and complications between grade 4 and grade 5 osteotomies in patients with severe and stiff thoracic kyphoscoliosis. METHODS: Forty-five patients with severe and stiff thoracic kyphoscoliosis who underwent 3-column osteotomy in the thoracic spine were classified into 2 groups according to the grade of osteotomy. The clinical data and radiologic parameters were collected and compared. RESULTS: Fourteen patients received grade 4 osteotomy, and 31 patients received grade 5 osteotomy. The spinal column shortening distances were similar between groups. The postoperative and latest follow-up radiologic parameters were not statistically significant between groups. Postoperative and follow-up results demonstrated greater correction of the regional kyphosis angle in the grade 4 osteotomy group, but did not reach significant level. The operative time and blood loss of grade 5 osteotomies were greater than those of grade 4, but showed no significant differences. Perioperative complication rates were also similar between groups. CONCLUSIONS: Similar clinical outcomes can be achieved with grade 4 and grade 5 spinal osteotomies. This may enrich the basis on moving down to a lower osteotomy grade when treating patients with severe and rigid thoracic kyphoscoliosis. PMID- 29033380 TI - CD105 is regulated by hsa-miR-1287 and its expression is inversely correlated with osteopotential in SHED. AB - A more accurate understanding of the molecular mechanisms and signaling pathways underpinning human mesenchymal stem cell (MSC) plasticity and differentiation properties is pivotal for accomplishing solid and diligent translation of MSC based experimental therapeutics and clinical trials to broad clinical practice. In addition, this knowledge enables selection of MSC subpopulations with increased differentiation potential and/or use of exogenous factors to boost this potential. Here, we report that CD105 (ENG) is a predictive biomarker of osteogenic potential in two types of MSCs: stem cells from human exfoliated deciduous teeth (SHED) and human adipose-derived stem cells (hASC). We also validate that CD105 can be used to select and enrich for subpopulations of SHED and hASC with higher in vitro osteogenic potential. In addition, we show that hsa mir-1287 regulates CD105 expression, and propose that fine-tuning hsa-mir-1287 levels could be used to control osteopotential in SHED. These findings provide better discernment of the molecular bases behind MSC osteogenic plasticity and open up new perspectives to leverage osteogenic potential in MSCs by modulation of a specific miRNA. PMID- 29033381 TI - The effect of once-yearly zoledronic acid on hip structural and biomechanical properties derived using computed tomography (CT) in Japanese women with osteoporosis. AB - The effects of zoledronic acid on hip structural and biomechanical properties were evaluated in Japanese patients with osteoporosis by computed tomography (CT). The subjects included in this study were a subset of female subjects (zoledronic acid group, 49 subjects; placebo group, 53 subjects) in the phase 3 trial (ZONE study) who were available for multi-detector row CT (MDCT) scanning. Eligible subjects were those diagnosed with primary osteoporosis based on the Diagnostic Criteria for Primary Osteoporosis (2000) by the Japanese Society for Bone and Mineral Research and who had between one and four fractured vertebrae located between the fourth thoracic vertebra and the fourth lumbar vertebra. The subjects received a once-yearly intravenous infusion of zoledronic acid 5mg or placebo for two years. CT data were obtained at baseline and at 12 and 24months later and analyzed under blinded conditions. The results demonstrated that once yearly intravenous infusion of zoledronic acid improved volumetric bone mineral density (vBMD), cortical bone geometry parameters, and CT-derived biomechanical parameters at the femoral neck, intertrochanteric region, and shaft; particularly at the intertrochanteric region, significant improvements in cortical bone geometry parameters and CT-derived biomechanical parameters, compared with those in the placebo group, were detectable early, at 12months. The present data suggest that zoledronic acid has a possibility to reduce the risk of hip fractures in Japanese patients with osteoporosis. PMID- 29033382 TI - Clinical-pathological correlations in three patients with fibrodysplasia ossificans progressiva. AB - OBJECTIVE: Fibrodysplasia ossificans progressiva (FOP) is an ultra-rare genetic disorder in which heterotopic bone forms in the soft tissues. This often occurs in response to injury or inflammation, leading to joint immobilization and significant disability. There are currently no definitive treatment options for this devastating disease. Although the most dramatic phenotype in FOP is the episodic and progressive heterotopic ossification, patients report a number of symptoms that affect other organ systems. Post-mortem examination of FOP patients may contribute to our understanding of the underlying pathophysiology and complications of this disease. Here, we present the autopsy findings from three patients with FOP. FINDINGS: Autopsy findings in two of the three patients confirmed that the cause of death was cardiorespiratory failure in the setting of severe thoracic insufficiency from heterotopic ossification. Both of these patients also had evidence of right ventricular dilatation likely secondary to thoracic insufficiency. The third patient died from complications of a traumatic head injury after a fall but also had post-mortem evidence of thoracic insufficiency syndrome. All three patients had extensive, widespread heterotopic ossification and joint deformities consistent with FOP. There was extensive ossification of the spinal ligament in these patients, which may contribute to cervical spine rigidity. One patient was diagnosed post-mortem with a brainstem malformation. No additional significant abnormalities were noted in the other organ systems. Finally, we also demonstrate that cadaveric skin fibroblasts can be isolated for use as a potential source for future in vitro cell culture studies. CONCLUSIONS: This autopsy case series provides valuable information about the underlying complications of FOP and contributes significantly to our knowledge of this rare yet debilitating disorder. Thoracic insufficiency syndrome, right heart dysfunction, widespread heterotopic ossification, spinal ligament ossification, and CNS malformations were clearly evident; however, most other non-bone tissues appeared to be spared from gross malformations. Finally, the ability to isolate live cells from cadaveric skin is an important technique that will facilitate future studies, particularly as induced pluripotent stem cells and other cell-based technologies evolve. This case series highlights the importance of post-mortem examinations and their contribution to our current knowledge of disease pathophysiology and comorbidities. PMID- 29033384 TI - Transcatheter mitral valve replacement: looking beyond the implant. PMID- 29033385 TI - PCR Peripheral @ GISE: a unique educational link between peripheral endovascular solutions and interventional cardiologists. PMID- 29033387 TI - Survival and cause of death after transcatheter aortic valve replacement as compared to an age- and sex-matched background population. AB - AIMS: This study aimed to assess survival and causes of death in a real-world TAVR population as compared to an age- and sex-matched background population. METHODS AND RESULTS: Each aortic stenosis (AS) patient treated with TAVR in Eastern Denmark between 2007 and 2014 (n=617) was matched with 25 age- and sex matched controls (n=15,425) randomly drawn from the general Danish population. In the total TAVR population, early mortality (<=90 days) was significantly higher (hazard ratio [HR] 3.90 [2.82-5.39]; p<0.001) as compared to its background population, driven mainly by cardiovascular (CV) mortality. Late mortality (>90 days) was not different between the TAVR and background population (HR 1.16 [0.96 1.40]; p=0.126), causes of death being mainly non-CV. In subgroup analysis, the HR for late mortality was 0.98, 1.11, and 1.90 for the low-, intermediate-, and high-risk TAVR groups, respectively, as compared to their matched controls and 1.04, 1.45, and 1.52 for the high gradient, paradoxical low-flow low-gradient (P LFLG), and classical LFLG (C-LFLG) groups, respectively, as compared to their controls. CONCLUSIONS: In general, AS patients who survive the first three months after TAVR have a similar survival to their matched controls. Relative survival benefit is the highest in low-to-intermediate risk AS patients with a high transvalvular gradient. PMID- 29033386 TI - "Breaking the code" of small bioprosthetic surgical valves. PMID- 29033388 TI - How should I treat an iatrogenic type IIA DeBakey-Stanford aortic dissection during a percutaneous right coronary artery intervention? PMID- 29033383 TI - Long-Term Exposure to Ambient Air Pollution and Incidence of Postmenopausal Breast Cancer in 15 European Cohorts within the ESCAPE Project. AB - BACKGROUND: Epidemiological evidence on the association between ambient air pollution and breast cancer risk is inconsistent. OBJECTIVE: We examined the association between long-term exposure to ambient air pollution and incidence of postmenopausal breast cancer in European women. METHODS: In 15 cohorts from nine European countries, individual estimates of air pollution levels at the residence were estimated by standardized land-use regression models developed within the European Study of Cohorts for Air Pollution Effects (ESCAPE) and Transport related Air Pollution and Health impacts - Integrated Methodologies for Assessing Particulate Matter (TRANSPHORM) projects: particulate matter (PM) <=2.5MUm, <=10MUm, and 2.5-10MUm in diameter (PM2.5, PM10, and PMcoarse, respectively); PM2.5 absorbance; nitrogen oxides (NO2 and NOx); traffic intensity; and elemental composition of PM. We estimated cohort-specific associations between breast cancer and air pollutants using Cox regression models, adjusting for major lifestyle risk factors, and pooled cohort-specific estimates using random-effects meta-analyses. RESULTS: Of 74,750 postmenopausal women included in the study, 3,612 developed breast cancer during 991,353 person-years of follow-up. We found positive and statistically insignificant associations between breast cancer and PM2.5 {hazard ratio (HR)=1.08 [95% confidence interval (CI): 0.77, 1.51] per 5 MUg/m3}, PM10 [1.07 (95% CI: 0.89, 1.30) per 10 MUg/m3], PMcoarse[1.20 (95% CI: 0.96, 1.49 per 5 MUg/m3], and NO2 [1.02 (95% CI: 0.98, 1.07 per 10 MUg/m3], and a statistically significant association with NOx [1.04 (95% CI: 1.00, 1.08) per 20 MUg/m3, p=0.04]. CONCLUSIONS: We found suggestive evidence of an association between ambient air pollution and incidence of postmenopausal breast cancer in European women. https://doi.org/10.1289/EHP1742. PMID- 29033389 TI - Chemical renal denervation: an effective method to treat resistant hypertension? PMID- 29033390 TI - Chemical sympathetic denervation: promising, but important distinctions between agents and methods. PMID- 29033391 TI - Breast diseases in children: the spectrum of radiologic findings in a cohort study. AB - PURPOSE: We aimed to investigate the spectrum of radiologic findings and referral reasons for breast diseases in children considering age-appropriate presentation. METHODS: Our retrospective cohort study included 348 consecutive pediatric patients aged <19 years (median, 13 years) referred to radiology with a clinical presentation between 2005 and 2016. Radiologic findings were reviewed in four age ranges (0-2 years, 2-8 years, 8-15 years, >15 years). RESULTS: Of 348 patients, 257 had a referral reason. The most frequent referral reason was a palpable mass (35%). Developmental abnormalities accounted for 48% of all radiologic findings in 348 patients. We did not detect any breast malignancy. According to age groups, the most common radiologic findings were neonatal hypertrophy (0-2 years), early breast development (2-8 years), developmental abnormalities by a majority of gynecomastia (8-15 years), and normal findings or developmental abnormalities (>15 years). Interestingly, the frequency of gynecomastia was only 4% in neonatal period or early childhood. Fibroadenomas and fibroadenoma-like solid masses were seen after 8 years and constituted the majority of solid masses (65%). Cysts were seen at a rate of 7% and majority of them were of simple type, which tends to resolve in time. CONCLUSION: In our study, the most common referral reason to radiology was a palpable breast mass. Neonatal hypertrophy and early breast development in younger children, and developmental abnormalities in older children may be kept in mind as the most common radiologic findings. Our study confirms the substantial absence of malignancies in children as well as a widely different disease spectrum in comparison with the adult population. PMID- 29033393 TI - New bioactive glass scaffolds with exceptional qualities for bone tissue regeneration: response of osteoblasts and osteoclasts. AB - Tissue regeneration is a significantly improved alternative to tissue replacement by implants. It requires porous bioscaffolds for the restoration of natural tissue rather than relying on bio-inactive, often metallic implants. Recently, we developed technology for fabricating novel, nano-macroporous bioactive 'tailored amorphous multi-porous (TAMP)' hard tissue scaffolds using a 70 mol% SiO2-30 mol% CaO model composition. The TAMP silicate scaffolds, fabricated by a modified sol gel process, have shown excellent biocompatibility via the rapid formation of hydroxyapatite in biological fluids as well as in early tests with bone forming cells. Here we report an in depth investigation of the response of MC3T3-E1 pre osteoblast cells and bone marrow derived (BMD) osteoclasts to these TAMP scaffolds. Light and electron microscopic imaging, gene and protein expression, and enzyme activity analyses demonstrate that MC3T3-E1 pre-osteoblasts adhere, proliferate, colonize, and differentiate on and inside the bioactive TAMP scaffolds. Additionally, BMD precursor cells mature into active osteoclasts and remodel the scaffold, highlighting the exceptional qualities of this novel scaffold material for bone tissue regeneration. PMID- 29033392 TI - Mechanical recanalization in ischemic anterior circulation stroke within an 8 hour time window: a real-world experience. AB - PURPOSE: We aimed to assess the safety and effectiveness of mechanical recanalization in patients with ischemic stroke in the anterior circulation within 8 h since symptoms onset and with unknown onset time. We compared time intervals <6 h vs. 6-8 h/unknown onset time, as only limited data are available for a time window beyond 6 h. METHODS: Our cohort included 110 consecutive patients (44 males; mean age, 73.0+/-11.5 years) with ischemic stroke in the anterior circulation due to the acute occlusion of a large intracranial artery who underwent mechanical recanalization within an 8-hour time window or with unknown onset time. All patients underwent unenhanced computed tomography (CT) of the brain, CT angiography of the cervical and intracranial arteries and digital subtraction angiography. Perfusion CT was performed in patients beyond a 6-hour time window/with unknown onset time. We collected the following data: baseline characteristics, presence of risk factors, neurologic deficit at the time of treatment, time to therapy, recanalization rate, and 3-month clinical outcome. Successful recanalization was defined as Thrombolysis in Cerebral Infarction score of 2b/3 and good clinical outcome as modified Rankin scale value of 0-2 points. RESULTS: Successful recanalization was achieved in 82 patients (74.5%): in 61 patients treated within 6 h (73.5%), 7 patients treated within 6-8 h (63.6%), and 13 patients with unknown onset time (81.3%). Good 3-month clinical outcome was achieved in 61 patients (55.5%): in 46 patients treated within 6 h (55.4%), 5 patients treated within 6-8 h (45.5%), and 10 patients with unknown onset time (62.5%). Recanalization success or clinical outcome were not significantly different between patients treated at different time windows. CONCLUSION: Our data confirms the safety and effectiveness of mechanical recanalization performed in carefully selected patients with ischemic stroke in the anterior circulation within 8 h of stroke onset or with unknown onset time in everyday practice. PMID- 29033394 TI - Diagnostic biomarkers for lung cancer prevention. AB - Lung cancer is the leading cause of death for neoplasm. Lung cancer mortality is frequently associated with late diagnosis, therefore an early diagnosis is a key factor to significantly improve overall survival in high risk populations of asymptomatic patients. Conventional cancer screenings (low-dose computed tomography or chest x-ray) today offer early detection but are invasive and expensive. Previously these studies evaluated the solid and topographic cancer structure and morphology. Today the concept of tumor has been remodelled, being defined as a disease that has its own genetic, biological and metabolic identity; it is on this new awareness that we should base new screening methods. Recent research has shown great reliability of new tests such as exhaled breath analysis, serum biomarkers and urine analysis in early diagnosis of lung cancer. Analysis of new biomarkers associated with the high specificity of these new screening methods, which are non-invasive, safe, inexpensive and simple to perform, could allow a non-invasive approach to determine a big change in the early diagnosis of cancer and its survival rate. Furthermore, these new techniques put the patient at the core of a non-invasive diagnostic process and ensure a better quality of life during medical diagnosis. In this article, we want to analyze the possible benefits of these new and promising methods, suggesting a possible combination between them to ensure, as soon as possible, an early and effective diagnosis of lung cancer with a special focus on the patient, in a new era of personalized medicine. PMID- 29033396 TI - Depression in Cancer Care. AB - Depression is common among cancer patients and their families, and may lead to substantial clinical consequences. Clinicians should routinely screen cancer patients for comorbid depression and should provide appropriate care at both primary and specialized care levels. Good quality care is beneficial not only for cancer patients themselves but also for their family members. It includes good communication between patients and health providers, and addressing of unmet needs of cancer patients. Specialized care comprises pharmacotherapy and psychotherapy. The advancement of psychotherapy for cancer patients parallels the advancement of general psychotherapy. Among the many types of psychotherapies, mindfulness-based interventions have been attracting growing attention. Some relevant studies that have been conducted in Keio University Hospital are described herein. PMID- 29033395 TI - Perioperative changes in exhaled nitric oxide during oesophagectomy. AB - INTRODUCTION: Oesophagectomy is a major surgical procedure, associated with high rates of postoperative cardiopulmonary morbidity, that is in part due to the frequent requirement for periods of intraoperative one-lung ventilation (OLV). The current pilot study aims to investigate variation in exhaled NO levels during oesophagectomy with emphasis on the response to OLV and correlation to physiological variables and clinical outcomes. METHODS: Breath-to-breath concentrations of NO were analysed in patients undergoing oesophagectomy at various stages of two-lung ventilation. Furthermore, we also analysed the effects of OLV both in the selectively ventilated and collapsed lungs. RESULTS: Twenty four patients were recruited to the study (17 male, 60.2 +/- 12.8 years). Regarding two-lung ventilation, the baseline levels of NO (2.9 ppb), tended to increase after re-inflation of the collapsed lung (3.5 ppb, P = 0. 888) and decreased at 2 h (2.1 ppb, P = 0.022) and 12 h (2.2 ppb, P = 0.733) postoperatively. Compared to baseline, selective measurements of NO at the end of OLV demonstrated a significant reduction of NO levels in the ventilated lung (1.6 versus 3.1 ppb, P = 0.028), whereas re-inflation of the collapsed lung revealed higher levels of NO (3.4 versus 2.7 ppb, P = 0.657). Exhaled NO correlated significantly with systolic blood pressure and lactate (P < 0.007). Exhaled NO levels tended to be higher at all perioperative time points in patients who developed postoperative respiratory complications (P > 0.05). CONCLUSION: This study highlights effects of oesophagectomy and OLV on exhaled concentrations of NO. The observed variations may be related to differential ventilation during OLV altering the complex balance between synthesis and consumption of NO as well as local and generalised tissue injury associated with this surgery. Findings should prompt further larger studies to establish the relationship between exhaled NO and lung injury both during and after oesophagectomy and one-lung ventilation. PMID- 29033397 TI - A transvaginal endoscopy-based technique for performing ovarian examinations in sows. AB - For examining pig ovaries, which have complex structures, laparoscopy is a useful technique, but requires general anesthesia; therefore, it cannot be performed repeatedly within a short period of time. We report a transvaginal endoscopy based technique for conducting ovarian examinations without general anesthesia. Sows were sedated in pig stalls. Using a colonoscope, the vaginal wall was punctured with a trocar. To avoid the trocar being caught in the broad ligament of the uterus or the connective tissue around the vagina, the trocar was inserted close to the external uterine os and between the 2:00 and 3:00 or the 9:00 and 10:00 positions (in a clockwise direction). Then, a urethroscope was inserted into the abdomen, and an examination was carried out after the ovaries had been moved towards the urethroscope camera via rectal palpation. This less invasive procedure may allow repeated examinations and will increase our understanding of ovarian dynamics in pigs. PMID- 29033398 TI - Intensive Education of Health Care Workers Improves the Outcome of Ebola Virus Disease: Lessons Learned from the 2014 Outbreak in Sierra Leone. AB - The rare and deadly Ebola virus disease (EVD) is caused by Ebola virus (EBOV) infection. The 2014-2015 EVD outbreak in West Africa was unprecedented. Person-to person transmission of EBOV by direct contact with the body or bodily fluids of an infected person through broken skin or unprotected mucous membrane caused rapid outbreak in communities. Nosocomial infection was the cause of death of many health care workers (HCWs). This paper aims to reveal the importance and effect of intensive education of HCWs when combating an outbreak such as EVD. We compared the curricula of two educational programs and analyzed their effects by the trend of weekly new patients. In September 2014, a three-day training program on infection, prevention and control (IPC) was organized for nurses, but it was not sufficient to achieve good outcome. In December 2014, a newly established National Ebola Training Academy was set up to offer a platform of clinical training modules for frontline Ebola response workers. This academy addressed the training needs of clinicians and hygienists who were working or will work at Ebola treatment centers that were established after the onset of the 2014 outbreak. Increased intensive contents and simulated training at the academy improved HCWs' understanding of EVD, IPC and patient care, which subsequently contributed to the survival of patients. The rapid settlement of the outbreak after introducing the Academy indicates that appropriate intensive education of HCWs is the key activity carried out to control the outbreak of EVD in Sierra Leone. PMID- 29033400 TI - Protective effects of luteolin-7-O-glucoside against starvation-induced injury through upregulation of autophagy in H9c2 Cells. AB - Cardiomyocyte nutrient deprivation is a common clinical event that mediates various cardiac ischemic processes and is associated with autophagy activation and cell survival or death. Luteolin-7-O-glucoside (LUTG) was one of the flavonoid glycosides isolated from Dracocephalum tanguticum. Previous research had showed that LUTG pretreatment had significant protective effects against doxorubicin-induced cardiotoxicity. However, whether LUTG could protect cardiomyocytes from starvation-induced injury was not clear. In this study, cardioprotection and mechanisms of LUTG against starvation-induced injury were investigated in vitro. 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2-tetrazolium bromide (MTT) assay showed starvation-induced autophagy is a homeostatic and protective response for H9c2 cell survival. LUTG could protect against injury induced by starvation in H9c2 cells. Acridine orange (AO) staining showed that pretreatment with LUTG enhanced lysosomal autophagy. Western blotting indicated that LUTG enhanced autophagy by down-regulating the expression of phospho extracellular signal regulated kinase1/2 (p-ERK), phospho-protein kinase B (p Akt) and phospho-mammalian target of rapamycin (p-mTOR). These results suggest that LUTG might act as a promising therapeutic agent for preventing starvation induced cardiotoxicity by upregulation of autophagy through the Akt/mTOR and ERK signal pathway. PMID- 29033399 TI - The contribution of efficient production of monozygotic twins to beef cattle breeding. AB - Production of sires with high breeding potential is indispensable for prompt and reliable breeding using their semen in the cattle industry. Currently, in Japan, we aim to further the production of Japanese black sires via a new breeding system that uses genetically homologous monozygotic twins so that better growth performance and carcass traits can be translated to the increased production of beef with higher economic value. Several studies have reported that monozygotic twins are produced by embryo bisection. On the other hand, with the evolution and stabilization of in vitro fertilization technology, it has become possible to produce multiple monozygotic twin calves from blastomeres separated from a cleavage-stage embryo. This review attempts to clarify breeding practices through revalidation of the factors that affect the production efficiency of monozygotic twin calves by embryo bisection. Furthermore, the establishment of a system for monozygotic twin embryo production via the simplified technique of blastomere separation is reviewed while showing data from our previously performed studies. PMID- 29033401 TI - Construction of C35 gene bait recombinants and T47D cell cDNA library. AB - C35 is a novel tumor biomarker associated with metastasis progression. To investigate the interaction factors of C35 in its high expressed breast cancer cell lines, we constructed bait recombinant plasmids of C35 gene and T47D cell cDNA library for yeast two-hybrid screening. Full length C35 sequences were subcloned using RT-PCR from cDNA template extracted from T47D cells. Based on functional domain analysis, the full-length C351-348bp was also truncated into two fragments C351-153bp and C35154-348bp to avoid auto-activation. The three kinds of C35 genes were successfully amplified and inserted into pGBKT7 to construct bait recombinant plasmids pGBKT7-C351-348bp, pGBKT7-C351-153bp and pGBKT7-C35154-348bp, then transformed into Y187 yeast cells by the lithium acetate method. Auto-activation and toxicity of C35 baits were detected using nutritional deficient medium and X-alpha-Gal assays. The T47D cell ds cDNA was generated by SMARTTM technology and the library was constructed using in vivo recombination-mediated cloning in the AH109 yeast strain using a pGADT7-Rec plasmid. The transformed Y187/pGBKT7-C351-348bp line was intensively inhibited while the truncated Y187/pGBKT7-C35 lines had no auto-activation and toxicity in yeast cells. The titer of established cDNA library was 2 * 107 pfu/mL with high transformation efficiency of 1.4 * 106, and the insert size of ds cDNA was distributed homogeneously between 0.5-2.0 kb. Our research generated a T47D cell cDNA library with high titer, and the constructed two C35 "baits" contained a respective functional immunoreceptor tyrosine based activation motif (ITAM) and the conserved last four amino acids Cys-Ile-Leu-Val (CILV) motif, and therefore laid a foundation for screening the C35 interaction factors in a BC cell line. PMID- 29033402 TI - 5-aminolevulinic acid (5-ALA) fluorescence-guided Mohs surgery resection of penile-scrotal extramammary Paget's disease. AB - This report aims to evaluate the usefulness of 5-aminolevulinic acid (5-ALA) fluorescence-guided Mohs surgery resection of penile-scrotal extramammary Paget's disease for achieving maximum tumor resection. Between January 2014 and December 2015, 5 patients underwent surgical resection of a penile-scrotal extramammary Paget's disease in department of urology, Huashan hospital, Fudan University. All patients were coated with 5-ALA (concentration of 20%) throughout the scrotum and the visible range of the lesion plus a 2cm margin 3 hours before the induction of anesthesia. 5-ALA fluorescence was visualized using an ultraviolet (UV) light at 405 nm. Surgical margin was determined in a standardized manner. The extent of resection was evaluated on the basis of frozen and histology sections. If the fluorescence positive punctate lesions were found outside the resection range, we removed the lesions and sent them for pathological examination. All data were prospectively collected, and the short- and long-term outcomes of the treatment strategy were analyzed. Lesions in the blue light turns red after irradiation, the fluorescence-guided surgery delineated range is less than the naked eye, intraoperative frozen prompted negative margins, postoperative pathological diagnosis. A total of 31 scattered lesions were found. After biopsy pathology prompted four were positive. In conclusion, 5-ALA fluorescence-guided minimum range can be completely removed in penile-scrotal Paget's lesions, and it is able to detect distant scattered lesions. PMID- 29033403 TI - Development of a new test cell to measure cumulative permeation of water insoluble pesticides with low vapor pressure through protective clothing and glove materials. AB - A collaborative approach, involving resources and expertise from several countries, was used to develop a test cell to measure cumulative permeation by a solid-state collection technique. The new technique was developed to measure the permeation of pesticide active ingredients and other chemicals with low vapor pressure that would otherwise be difficult to test via standard techniques. The development process is described and the results from the final chosen test method are reported. Inter-laboratory studies were conducted to further refine the new method and determine repeatability and reliability. The revised test method has been approved as a new ISO/EN standard to measure permeation of chemicals with low vapor pressure and/or solubility in water. PMID- 29033404 TI - Prediction of WBGT-based clothing adjustment values from evaporative resistance. AB - Wet bulb globe temperature (WBGT) index is used by many professionals in combination with metabolic rate and clothing adjustments to assess whether a heat stress exposure is sustainable. The progressive heat stress protocol is a systematic method to prescribe a clothing adjustment value (CAV) from human wear trials, and it also provides an estimate of apparent total evaporative resistance (Re,T,a). It is clear that there is a direct relationship between the two descriptors of clothing thermal effects with diminishing increases in CAV at high Re,T,a. There were data to suggest an interaction of CAV and Re,T,a with relative humidity at high evaporative resistance. Because human trials are expensive, manikin data can reduce the cost by considering the static total evaporative resistance (Re,T,s). In fact, as the static evaporative resistance increases, the CAV increases in a similar fashion as Re,T,a. While the results look promising that Re,T,s can predict CAV, some validation remains, especially for high evaporative resistance. The data only supports air velocities near 0.5 m/s. PMID- 29033405 TI - Construction and expression of vectors encoding biologically active rodent gonadotropins. AB - The gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), are important hormones in vertebrate reproduction. The isolation of gonadotropins from the pituitary gland is sub-optimal, as the cross-contamination of one hormone with another is common and often results in the variation in the measured activity of LH and FSH. The production of recombinant hormones is, therefore, a viable approach to solve this problem. This study aimed to express recombinant rat, mouse, and mastomys FSH and LH in Chinese hamster ovary (CHO) cells. Their common alpha-subunits along with their hormone-specific beta subunits were encoded in a single mammalian expression vector. FSH from all three species was expressed, whereas expression was achieved only for the mouse LH. Immunohistochemistry for rat alpha subunit of glycoprotein hormone (alphaGSU) and LHbeta and FSHbeta subunits confirmed the production of the dimeric hormone in CHO cells. The recombinant rodent gonadotropins were confirmed to be biologically active; estradiol production was increased by recombinant FSH in granulosa cells, while recombinant LH increased testosterone production in Leydig cells. PMID- 29033406 TI - Different Behavior of Bioresorbable Vascular Scaffold and Metallic Stent With Positive Vessel Remodeling. PMID- 29033407 TI - First Report of Swim Bladder-Associated Microbiota in Rainbow Trout (Oncorhynchus mykiss). AB - The aim of the present study was to identify major bacteria associated with the swim bladder in the rainbow trout, Oncorhynchus mykiss. We extracted DNA from the swim bladder and gut contents in order to perform a temporal temperature gradient gel electrophoresis (TTGE) analysis of 16S rRNA amplicons for bacterial identification to further compare both profiles. Arthrobacter and Cellulosimicrobium were the major genera observed in the swim bladder in fish, but were not present in fish gut contents; Mycoplasma were instead observed in these samples. Further research to investigate the possible symbiotic roles of the swim bladder-associated microbiota in salmonids is needed. PMID- 29033408 TI - Transrectal guidance of the ovaries reduces operative time during bovine laparoscopic ovariectomy. AB - The main objective of this study was to evaluate the effects of transrectal guidance of the ovaries by an assistant on operative time during bovine laparoscopic ovariectomy. Twenty four clinically healthy Holstein dairy cows were divided randomly into two groups. In the transrectal guidance group, an assistant grasped the ovaries via the transrectal route and pulled them to a position where they could be visualized with a camera. On the other hand, the control group was operated without guidance. The time required to remove both ovaries in the guidance group was shorter than that in the control group (P<0.01). We concluded that laparoscopic ovariectomy with transrectal guidance of the ovaries can substantially shorten operative time, thereby greatly contributing to animal welfare and to reducing the burden on the operator. PMID- 29033409 TI - Evaluation of serum ferritin and thyroid function in the second trimester of pregnancy. AB - Ferritin is a universal intracellular protein that acts as an iron carrier. Several studies have indicated that iron deficiency affects thyroid function in non-pregnant women. Our objective was to assess the relationship between serum ferritin levels and thyroid function in pregnant women during the second trimester. Pregnant women with sufficient iodine intake and normal antithyroid antibodies during the second trimester were recruited from the obstetric outpatient department of the Fifth People's Hospital of Fudan University. Serum ferritin (SF) levels, thyroid function, anti-thyroid antibodies and vitamin B12 were determined by electrochemiluminescence immunoassay kit. Maternal serum iron (Fe), unsaturated iron binding capacity (UIBC), hemoglobin (Hb), creatinine (Cr), fasting blood glucose (FBG), and alanine aminotransferase (ALT) were also evaluated. Stepwise regressions performed to evaluate the associations between SF and other maternal parameters. In the second trimester, 11.4% pregnant women had a SF concentration less than 12 MUg/L, and 7.6% pregnant women were anemic. SF levels were negatively correlated with serum TSH levels (r = -0.219, p < 0.05), and positively correlated with FT4 levels (r = 0.203, p < 0.05). Linear regression analysis showed only SF, age, week of gestation were significant predictors of regression with TSH as the dependent variable (beta: -0.007, 0.059, and 0.118 respectively; all p < 0.05). However consistent relation between the SF levels and FT4 was not observed in stepwise linear regression. Maternal iron status is a determinant of TSH concentrations during pregnancy in pregnant women during the second trimester. PMID- 29033410 TI - Total Small Vessel Disease Score in Neurologically Healthy Japanese Adults in the Kashima Scan Study. AB - Objective We explored the association between the total small vessel disease (SVD) score obtained with magnetic resonance imaging and risk factors and outcomes in the Japanese population. Methods The presence of SVD features, including lacunes, cerebral microbleeds, white matter changes, and basal ganglia perivascular spaces on MRI, was summed to obtain a "total SVD score" (range 0-4). Ordinal and multinomial logistic regression analyses were performed to investigate the association of higher total SVD scores with vascular risk factors, the Mini-Mental State Examination (MMSE) score, and cerebral atrophy. Results We included 1,451 neurologically healthy adults (mean age, 57.1 years; 47% male). A multivariate ordinal logistic regression analysis showed that the total SVD score was associated with aging, hypertension, blood pressure (BP), diabetes mellitus, MMSE score, and deep cerebral atrophy, but the equal slopes assumption between scores did not hold. A multivariate multinomial logistic regression analysis (total SVD score 0=reference) showed that aging, hypertension, and BP were positively associated with scores of 1, 2, or >=3. These effects, presented as odds ratios (ORs), increased as the score increased and were strongest with a score of >=3 [aging (per 10-year increment), OR 4.00, 95% confidence interval (CI) 2.47-6.46; hypertension, OR 5.68, 95% CI 2.52-12.80; systolic BP (per standard deviation increase), OR 1.96, 95% CI 1.41-2.74, respectively]. Diabetes mellitus and deep cerebral atrophy tended to be associated with the SVD scores. The MMSE score showed no consistent associations. Conclusion The total SVD score may be a promising tool for indexing SVD, even in the Japanese population. PMID- 29033411 TI - Relationship between the Clinical Course of Ulcerative Colitis during Pregnancy and the Outcomes of Pregnancy: A Retrospective Evaluation. AB - Objective Little information is available on the relationship between the clinical course of ulcerative colitis (UC) and the outcomes of pregnancy and delivery in pregnant Japanese women. The aim of this retrospective study was to determine the factors that influence pregnancy and childbirth in middle-aged UC patients. Methods We studied 53 pregnancies in 45 pregnant women with UC who delivered at our department. They included 41 pregnancies that started while in UC remission and 12 pregnancies that started in the UC active phase. The following factors were evaluated: 1) the clinical course of UC; 2) the frequency and details of abnormal pregnancy/abnormal delivery; and 3) the course of pregnancy/delivery. We compared the clinical features, course of UC, and details of treatment between women with a normal pregnancy/delivery and those with an abnormal delivery. Results A comparison of the remission and acute groups showed lower clinical activity indices (CAIs) during pregnancy in the remission group and significantly higher rates of recurrence/exacerbation in the active group (75%) than in the remission group (7.3%). The respective CAIs in the first, second, and third trimesters were 3 and 6, 3 and 5, and 3 and 4, in the remission and active groups, respectively. Live infants were delivered in 51 (96%) pregnancies, with 7 (17%) abnormal pregnancies in the remission group and 4 (33.3%) in the active group (p>0.05). Abnormal delivery occurred in 16 of 53 (30.1%) pregnancies, and the rate was higher in the remission group than in the active group (p>0.05). In both groups, the most common abnormal event during pregnancy was delivery of low-birth-weight infants. Delivery was normal in 37 cases and abnormal in 16 cases. A multivariate analysis showed that a shorter UC disease duration (odds ratio=1.16) and higher CAI in the first trimester (odds ratio=1.49) were associated with an increased risk of abnormal pregnancy. Conclusion Our findings demonstrated that the clinical course of UC, as evaluated by the CAI, during pregnancy influenced the outcome of pregnancy and delivery. PMID- 29033413 TI - Multiple Lung Cysts Due to pneumocystis jirovecii Pneumonia. PMID- 29033412 TI - Emergency Caesarean Section Saved Both an Anti-MuSK Antibody-positive Myasthenia Gravis Mother with Pregnancy-induced Hypertension and Her Premature Baby. AB - We herein report the case of a 46-year-old pregnant woman with anti-muscle specific kinase (MuSK) antibody-positive myasthenia gravis (MG) who showed pregnancy-induced hypertension and developed respiratory failure at 30 weeks and 5 days of pregnancy, and who underwent an emergency caesarean section (CS). Her MG symptoms gradually improved in the subsequent weeks. The premature baby with positive MuSK antibodies was successfully delivered, but the male baby required temporary artificial ventilation. However, his condition also gradually improved over time. The present case suggests that an emergency CS could rescue both the mother, who was in critical condition, and the prematurely born baby, even when suffering from acute respiratory insufficiency. PMID- 29033414 TI - Spontaneous Regression of Allergic Bronchopulmonary Mycosis Due to Curvularia lunata. AB - Allergic bronchopulmonary mycosis (ABPM) is a pulmonary hypersensitivity disease mainly caused by Aspergillus fumigatus. The mainstay treatment for ABPM is systemic corticosteroid therapy. A 25-year-old man presented with pulmonary infiltrates. His peripheral eosinophil, total serum IgE, and serum Aspergillus specific IgE levels were elevated. The patient tested positive in a skin test for Aspergillus. However, sputum cultures revealed a Curvularia lunata infection. We therefore diagnosed ABPM possibly caused by C. lunata, which is rare in Japan. The clinical state of the patient improved under observation. Identification of the causative fungus is an important aspect of the ABPM diagnosis. PMID- 29033415 TI - Liver Cyst Infection after Colon Endoscopic Mucosal Resection in a Patient with Autosomal Dominant Polycystic Kidney Disease on Maintenance Hemodialysis. AB - A 60-year-old Japanese man with autosomal dominant polycystic kidney disease (ADPKD) on maintenance hemodialysis underwent colonoscopy and endoscopic mucosal resection (EMR). He was hospitalized after 4 days of fever that began the day following colonoscopy. We detected Klebsiella pneumoniae in a blood culture and a ring-shaped integration in the liver cyst by gallium scintigraphy. He recovered with antibiotics and percutaneous drainage. The patient was believed to have contracted the liver cyst infection via an injured colonic mucosa and portal vein. Thus, if a patient exhibits fever after a colon EMR, for patients with ADPKD, then a liver cyst infection should also be considered in the differential diagnosis. PMID- 29033417 TI - Pseudohypoparathyroidism Causing Multiple Brain Calcifications. PMID- 29033416 TI - Progression of Hepatic Hypovascular Nodules with Hypointensity in the Hepatobiliary Phase of Gd-EOB-DTPA-enhanced MRI in Hepatocellular Carcinoma Cases. AB - Objective We investigated the possible factors for predicting the future progression to hepatocellular carcinoma (HCC) from hypovascular nodules detected in the hepatobiliary phase of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging (Gd-EOB-DTPA-MRI). Methods A total of 91 hypovascular nodules detected by Gd-EOB-DTPA-MRI in 28 patients without any past history of treatment for HCC were retrospectively examined. The nodules were categorized into those with and without HCC progression, then comparisons were made to identify any factors possibly related to a progression to HCC in each case. In addition, we performed a receiver operating characteristics (ROC) analysis to determine the cut-off value for the initial nodule size for predicting HCC progression within 12 months. Results The observation period of the 28 patients was 1,172.6+/-95.6 (mean+/-standard error) days. The number of hypovascular nodules that changed to hypervascular ones was 15 (16.5%), and the cumulative incidence of hypervascular transformation was 7.1% at 12 months and 12.7% at 24 months. Of all 91 hypovascular nodules, 33 in 18 patients were diagnosed as HCC based on hypervascular transformation and/or size enlargement, while the remaining 58 did not progress to HCC. There was no significant difference regarding the background characteristics between the HCC progressed and non-progressed groups according to a multivariate analysis, or between the patients who had nodules that progressed to HCC and those with nodules that did not progress to HCC. Regarding HCC progression at 12 months, the area under the ROC (AUROC) had a level of 0.745 and showed that an initial nodule cut-off size of 9.5 mm (sensitivity, 57.9%; specificity, 87.3%) was predictive. Conclusion In patients without a past HCC treatment history, it is difficult to determine whether hypovascular nodules have a high risk of progression to HCC based on background factors alone. PMID- 29033418 TI - Primary and Secondary Syphilis as Chancre of the Mouth with Rash. PMID- 29033419 TI - Successful Osimertinib Rechallenge with Steroid Therapy after Osimertinib-induced Interstitial Lung Disease. AB - A 62-year-old male with lung adenocarcinoma harboring an exon 19 deletion in the Epidermal growth factor receptor (EGFR) was treated with EGFR-tyrosine kinase inhibitors (TKIs) and several cytotoxic agents. After administering a fifth-line chemotherapy regimen, a liver biopsy revealed a diagnosis of recurrence with a T790M mutation. After an 82-day course of osimertinib therapy, the patient developed osimertinib-induced interstitial lung disease (ILD). Osimertinib was discontinued, and oral prednisolone was started. The ILD quickly improved, but liver metastases progressed and osimertinib was restarted concurrently with prednisolone. The patient showed neither disease progression nor a recurrence of ILD at 5 months. In situations in which no alternative treatment is available, osimertinib rechallenge should thus be considered as an alternative treatment. PMID- 29033420 TI - Usefulness of Bronchial Thermoplasty for Patients with a Deteriorating Lung Function. AB - Bronchial thermoplasty is a novel procedure for patients with severe asthma showing a stable lung function. We herein report two cases with a deteriorating lung function. The lung function tended to improve in one case, while the other case discontinued mepolizumab medication after the procedure. Treatment was performed safely under general anesthesia in both cases. The use of bronchial thermoplasty may therefore be useful for the treatment of patients with a deteriorating lung function. PMID- 29033423 TI - Recurrent Bleeding from a Hepatic Artery Pseudoaneurysm after Biliary Stent Placement. AB - A 78-year-old woman was admitted with benign biliary stenosis. A plastic stent was placed at the left branch to prevent obstructive cholangitis. Two weeks after the procedure, the patient was readmitted with cholangitis caused by hemobilia. However, computed tomography (CT), endoscopic retrograde cholangiopancreatography (ERCP), peroral cholangioscopy, and abdominal angiography failed to establish the bleeding source. At the seventh bleeding, CT revealed a hepatic artery pseudoaneurysm for which coil embolization was successfully performed. Hemobilia after plastic stent placement is extremely rare. We urge clinicians to consider the possibility of a pseudoaneurysm near the stent when trying to identify the bleeding source. PMID- 29033421 TI - The Resolution of Helicobacter suis-associated Gastric Lesions after Eradication Therapy. AB - A reddish depressed lesion was found in the corpus of the stomach of a 56-year old man. Gastric biopsy showed no findings of mucosa-associated lymphoid tissue lymphoma, including lympho-epithelial lesions. A urea breath test, stool antigen test and serum IgG antibody to Helicobacter pylori test were negative. Magnifying endoscopy using narrow-band-imaging showed no malignant structures. Gastric biopsy specimens were subjected to immunohistochemistry and a polymerase chain reaction, which identified Helicobacter suis infection. Triple therapy with esomeprazole, metronidazole, and amoxicillin was administered for 10 days. Three months later, endoscopy showed the significant improvement of the lesion. H. suis infection should be considered in chronic gastritis patients without H. pylori infection. PMID- 29033422 TI - Hepatic Pseudolymphoma with an Occult Hepatitis B Virus Infection. AB - A 49-year-old woman who was asymptomatic was found to have a small liver tumor on abdominal ultrasonography (US) at her annual health checkup. US revealed a hypoechoic, solid, mass measuring 17-mm in size in segment 6. The tumor markers associated with liver malignancy were negative. An infectious disease screen was negative for hepatitis B surface antigen, but positive for antibody to hepatitis B core antigen. Imaging studies using computed tomography (CT), magnetic resonance imaging (MRI), and CT angiography suggested a malignant liver tumor, such as hepatocellular carcinoma. Partial hepatic resection of the posterior segment was performed. The pathological diagnosis was pseudolymphoma of the liver. PMID- 29033424 TI - Diffuse Alveolar Hemorrhage in IgA Vasculitis with an Atypical Presentation. AB - IgA vasculitis (IgAV) commonly occurs in young children, who present with a tetrad of purpura, abdominal pain, arthralgia and nephritis. Diffuse alveolar hemorrhage (DAH) is a rare complication of IgAV. We herein report an adult case of IgAV with a presentation of DAH and nephritis (pulmonary renal syndrome, PRS), but without other typical manifestations, such as purpura, abdominal pain and arthralgia. A 33-year-old man presented with hemoptysis and a low-grade fever and was diagnosed to have IgAV based on the results of a renal biopsy. Treatment with corticosteroids, cyclophosphamide, and plasmapheresis was effective. IgAV should therefore be considered in the differential diagnosis of adult PRS. PMID- 29033425 TI - Evaluation by MR Enterocolonography of Lansoprazole-induced Collagenous Colitis Accompanied with Protein-losing Enteropathy. AB - We herein describe a 69-year-old man suffering from chronic diarrhea caused by lansoprazole (LPZ)-induced collagenous colitis (CC) accompanied with protein losing enteropathy (PLE), diagnosed by increased fecal alpha-1 antitrypsin clearance and the findings of leakage from the descending colon to the sigmoid colon on scintigraphy. MR enterocolonography (MREC) was also performed for differentiating digestive diseases, and inflamed findings were observed around the same portion as those on scintigraphy, suggesting that this region was responsible for protein loss in this case. The MREC findings improved after the cessation of LPZ, and hypoalbuminemia also improved simultaneously. This case suggests that MREC may be a new and useful diagnostic tool for CC with PLE. PMID- 29033426 TI - Fracture of a Colonic Self-expandable Metallic Stent in Malignant Colonic Obstruction. AB - Self-expandable metallic stents (SEMSs) are used for the management of malignant colorectal obstruction. A patient who underwent colonic uncovered SEMS insertion for extraluminal stenosis in the splenic flexure of the transverse colon due to advanced gastric cancer is herein reported. The patient presented with a fracture of the colonic SEMS 494 days after SEMS insertion. Although various complications of stenting have previously been reported, the details of fractures of colonic SEMSs have not yet been reported. Because the improvement in the prognosis for patients who undergo palliative SEMS insertion leads to long-term SEMS placement, diverse complications can thus be expected, and new events like stent fracture are expected to increase in the future. PMID- 29033428 TI - The Efficacy of Reduced-dose Dasatinib as a Subsequent Therapy in Patients with Chronic Myeloid Leukemia in the Chronic Phase: The LD-CML Study of the Kanto CML Study Group. AB - Objective The aim of this study was to prospectively investigate the efficacy and safety profiles of low-dose dasatinib therapy (50 mg once daily). Methods Patients with chronic myeloid leukemia in the chronic phase (CML-CP) who were being treated with low-dose imatinib (<=200 mg/day), but were resistant to this agent were enrolled in the current study (referred to as the LD-CML study). Results There subjects included 9 patients (4 men and 5 women); all were treated with dasatinib at a dose of 50 mg once daily. Among 8 patients who had not experienced major molecular response (MMR; BCR-ABL1 transcript <=0.1% according to International Scale [IS]) at study enrollment, 5 attained MMR by 12 months. In particular, 3 of 9 patients demonstrated a deep molecular response (DMR; IS <=0.0069%) by 18 months. Five patients developed lymphocytosis accompanied by cytotoxic lymphocyte predominance. There was no mortality or disease progression, and all continue to receive dasatinib therapy at 18 months with only 2 patients requiring dose reduction. Toxicities were mild-to-moderate, and pleural effusion was observed in 1 patient (grade 1). Conclusion Low-dose dasatinib can attain MMR and DMR without severe toxicity in patients with CML-CP who are unable to achieve MMR with low-dose imatinib. Switching to low-dose dasatinib should therefore be considered for patients in this setting, especially if they are otherwise considering a cessation of treatment. PMID- 29033427 TI - IgG4-related Lung Pseudotumor and Pleural Inflammation with Autoimmune Hepatitis. AB - A 63-year-old man was admitted to our department following a secondary medical examination. Blood tests showed high levels of liver enzymes, IgG, IgG4, and antinuclear antibody. Computed tomography showed tumors in the bilateral lower lobes of the lungs and pleural thickening. After pleural and liver biopsy procedures, he was conclusively diagnosed with IgG4-related lung pseudotumor and pleural inflammation with autoimmune hepatitis. We started treatment with prednisolone 40 mg/day, and chest radiograph and blood tests showed signs of improvement. This was a rare case that suggested an association between IgG4 related disease and autoimmune hepatitis. PMID- 29033429 TI - Cowden Syndrome with a Novel PTEN Mutation Presenting with Partial Epilepsy Related to Focal Cortical Dysplasia. AB - Cowden syndrome is a rare autosomal dominant disorder characterized by multiple hamartomas of the ectoderm and brain. A 36-year-old Japanese man presented with right facial seizure during sleep and was admitted to our hospital. He showed cobblestoning over the tongue and palmar pitting but no neurological abnormalities while he was not having a seizure. Brain magnetic resonance imaging showed focal cortical dysplasia in the left frontal lobe. Electroencephalography showed sharp waves over the left frontal lesion. A genetic analysis revealed a novel mutation of PTEN. The administration of carbamazepine ended the seizures. This is the first Japanese case of Cowden syndrome with a novel PTEN gene mutation and cortical dysplasia. PMID- 29033430 TI - The Prevalence of Japanese Outpatients with Hypertension Who Meet the Definition of Treatment Resistant Hypertension and Are Eligible for Enrolment in Clinical Trials of Endovascular Ultrasound Renal Denervation. AB - Objective A clinical trial (REQUIRE) was started to investigate the use of an ultrasound renal denervation system in the treatment of resistant hypertension (RHT). We analyzed the prevalence of patients who were eligible for inclusion in this cross-sectional study at the time of screening. Methods Nine-hundred ninety nine consecutive hypertension (HT) patients who were treated in our hospital as outpatients were classified into the following categories: patients treated with at least 3 types of antihypertensive drugs including diuretic agents who were eligible for enrolment in SYMPLICITY HTN-Japan (SH-J) with an office systolic blood pressure (SBP) of >=160 mmHg, who were <=80 years of age, and an estimated glomerular filtration rate (eGFR) of >=45 mL/min/1.73 m2 (RHT-S); and patients who were treated similar medications and who were eligible for enrolment in REQUIRE, with an SBP of >=150 mmHg, <=75 years of age, and an eGFR of >=40 mL/min/1.73 m2 (RHT-R). We investigated the proportion of patients in each category. We also investigated HT patients (1,423 cases) who were enrolled in the Chikushi Anti-Hypertension Trial (CHAT), a research network that includes general practitioners. Results Eleven patients (1.1%) with RHT-S and 18 patients (1.8%) with RHT-R were identified. After the exclusion of patients with secondary HT and a diastolic blood pressure (DBP) of <90 mmHg (applied in REQUIRE), 5 patients (0.5%) with RHT-S and 4 patients (0.4%) with RHT-R remained. In the analysis of the CHAT study, only 2 (0.1%) patients with RHT-R remained. Conclusion The number of eligible patients in the REQUIRE trial was decreased, largely due to the strict age restriction and the new DBP limitation. The prevalence of eligible patients in REQUIRE was estimated to be approximately 0.5 to 0.8 times that in SH J. Since patient enrollment will be difficult, drastic measures may be required to recruit eligible patients. PMID- 29033431 TI - Diagnostic Challenge in Pancreatic Sarcoidosis Using Endoscopic Ultrasonography. AB - We herein report a 55-year-old woman who presented with erythema and bilateral hilar lymphadenopathy 4 months prior to the detection of pancreatic lesions on an ultrasound. A skin biopsy showed evidence of sarcoidosis. The largest lesion in the tail of the pancreas was hypoechoic on endoscopic ultrasonography (EUS). The lesion was initially iso-enhanced on contrast enhanced-EUS (CE-EUS) but subsequently became hypoenhanced. The lesion revealed heterogeneous components of both soft and hard tissue on EUS elastography. She was ultimately diagnosed with pancreatic sarcoidosis based on the presence of noncaseating granulomas seen on pancreatic tissue retrieved through an EUS-guided fine needle aspiration biopsy. PMID- 29033432 TI - Drug-induced Brugada-type Electrocardiogram: A Cause of Sudden Death in Patients with Schizophrenia? PMID- 29033433 TI - Pneumothorax in a Patient with Unilateral Pulmonary Artery Agenesis. PMID- 29033434 TI - Hemoptysis from a Ruptured Saphenous Vein Graft Aneurysm. PMID- 29033436 TI - Bullous Pemphigoid Presenting with Esophagitis Dissecans Superficialis. PMID- 29033435 TI - Clinical Features of Nontuberculous Mycobacterial Pleurisy: A Review of 12 Cases. AB - Objective The incidence of pulmonary nontuberculous mycobacterial (NTM) infections has increased in recent decades. Nevertheless, NTM pleurisy is still a rare disease. The objective of the present study was to elucidate the clinical features and outcomes of NTM pleurisy. Methods A retrospective study was undertaken of consecutive patients whose pleural effusion culture yielded NTM, from 2002 to 2016 at a respiratory hospital in Japan. The clinical features, treatment, and outcomes of these patients were analyzed. Result The 12 patients with NTM pleurisy were predominantly male, with a median age of 69 years (range, 48-93 years). They included eight patients with a history of smoking and six patients with immunosuppressive comorbidities such as malignancy, diabetes mellitus, and conditions requiring steroid administration. Fibrocavitary disease was the most common radiographic feature of these patients, and Mycobacterium avium complex was the most common pathogen. Pneumothorax was complicated in 11 patients. Surgery was performed on seven patients, in addition to thoracic drainage for the treatment of pleurisy and pneumothorax. Three patients died of respiratory failure. Conclusion Pneumothorax is a frequent complication of NTM pleurisy, often making the condition difficult to treat. Surgery at an appropriate time should therefore considered for refractory cases. PMID- 29033437 TI - Acute Anorectal Thrombophlebitis Caused by a Protein C Deficiency. AB - A 46-year-old man visited the emergency department of our hospital with a 3-day history of anal pain, hemorrhaging, and a slight fever. He had previously been diagnosed with protein C deficiency and was prescribed dabigatran, a direct oral anticoagulant. Contrast-enhanced computed tomography showed severe rectal wall thickening with partial defect of enhancement. In addition, sigmoidoscopy revealed a dusky purplish swollen anorectal mucosa just above the dentate line. He was diagnosed with acute anorectal thrombophlebitis, and anticoagulant therapy with heparin was initiated. To our knowledge, this is the first case report of acute anorectal thrombophlebitis caused by protein C deficiency. PMID- 29033438 TI - Small-cell Lung Cancer Associated with SAPHO Syndrome. PMID- 29033439 TI - Trauma Wound Related Infection Caused by Enterobacter cancerogenus and Aeromonas hydrophilia. AB - We herein describe a case of trauma-related wound infection with a subcutaneous abscess caused by both Enterobacter cancerogenus and Aeromonas hydrophila. An 89 year-old Japanese man was admitted to our hospital because of an injury that he had suffered in a car accident. The right dorsal region of the foot around the wound was reddish and swelling. The pus culture on his right foot grew E. cancerogenus and A. hydrophila. The patient was successfully treated with a 10 day course of meropenem and a 25-day course of levofloxacin. E. cancerogenus can therefore be a causative pathogen in skin and soft tissue infections among trauma patients. PMID- 29033440 TI - Amiodarone-induced Thyrotoxicosis with Cardiopulmonary Arrest. AB - We describe a case of amiodarone-induced thyrotoxicosis (AIT) with cardiopulmonary arrest (CPA) in a 49-year-old woman. The patient had been treated with amiodarone for non-sustained ventricular tachycardia. Two weeks prior to her admission, she developed thyrotoxicosis and prednisolone (PSL, 30 mg daily) was administered with the continuation of amiodarone. However, she was admitted to our hospital for CPA. We performed total thyroidectomy to control her thyrotoxicosis and the pathological findings were consistent with type 2 AIT. She gradually improved and was discharged on day 84. This case demonstrates the importance of considering immediate total thyroidectomy for patients with uncontrollable AIT. PMID- 29033441 TI - Bilateral Tuberculous Pleurisy with Subsequent Upper Lobe Predominant Pulmonary Fibrosis Mimicking Pleuroparenchymal Fibroelastosis. AB - Although the majority of patients with Mycobacterium tuberculosis have pulmonary involvement, some cases have pleural involvement as extra-pulmonary sites of infection. We herein report a case of upper lobe-predominant pulmonary fibrosis that developed in a 47-year-old male with a history of bilateral tuberculous pleurisy. Based on his chest radiological findings, pleuroparenchymal fibroelastosis (PPFE) was most strongly suspected, and a surgical lung biopsy (SLB) was performed to obtain a pathological diagnosis. The SLB specimens showed interstitial pneumonia with pleural involvement without any characteristic findings of PPFE. Careful discretion in obtaining a precise diagnosis of this condition should be practiced in such cases. PMID- 29033442 TI - Efficacy of Oxycodone for Dyspnea in End-stage Heart Failure with Renal Insufficiency. AB - A 67-year-old man with dilated cardiomyopathy and renal insufficiency was admitted to our hospital with dyspnea secondary to end-stage heart failure. We introduced oxycodone for medically refractory dyspnea instead of morphine because of the patient's renal insufficiency. After the administration of oxycodone, his dyspnea was alleviated without any adverse opioid effects, such as respiratory depression. After treating his heart failure, he was able to leave the intensive care unit. Oxycodone may therefore be a reliable agent for the treatment of dyspnea in patients with end-stage heart failure and renal insufficiency. PMID- 29033444 TI - Endobronchial Lipoma: The Diagnostic Benefit of Computed Tomography Findings. PMID- 29033443 TI - Signet Ring Cell Carcinoma of Unknown Primary Origin Detected Incidentally by Lymph Node Purification for Thyroid Carcinoma. AB - A 63-year-old woman underwent thyroidectomy for papillary thyroid adenocarcinoma and cervical lymph node resection. Pathological analyses revealed the presence of signet cell carcinoma in a resected lymph node, which were apparently different from the pathological findings of thyroid carcinoma. No evidence of a primary tumor could be found elsewhere despite detailed examinations, including esophagogastroduodenoscopy, colonoscopy, capsule endoscopy, CT scan, and fluorodeoxyglucose-positron emission tomography. Two and half years later, the patient developed multiple bone metastases and the pathological findings confirmed the presence of signet cell carcinoma. The primary origin remained undetermined. Metastatic signet ring cell carcinoma of unknown primary origin is extremely rare. PMID- 29033445 TI - Auriculotemporal Nerve Syndrome. PMID- 29033446 TI - A Cerebral Air Embolism after Endoscopic Treatment. PMID- 29033447 TI - Inter-atrial Septal Thrombus without PFO. PMID- 29033448 TI - A Cardiac Calcified Amorphous Tumor Associated with End-stage Renal Disease: An Emerging Disease Concept. PMID- 29033449 TI - Symptomatology Patterns in Children with Allergic Rhinitis. AB - BACKGROUND Although allergic rhinitis (AR) is recognized as a growing global health disease with considerable importance for patients' lives, especially among children and adolescents, there is a lack of population studies concerning symptomatology patterns of the disease. The present study aimed to explore symptoms prevalence among school-aged children, to detect any correlation between allergen sensitivities with symptomatology patterns, and, finally, to evaluate the association of the sensitivity grade score with symptoms severity or seasonality. MATERIAL AND METHODS This was a cross-sectional, observational study in a childhood population. The first stage included recruitment of children and parental-completed questionnaires. The second stage included skin-prick tests for the most common allergens. Severity of symptoms was self-evaluated using a scale that ranged from "0" (no symptoms), "1" (mild), and "2" (moderate-to-severe). AR was classified as seasonal (SAR) or perennial (PAR). RESULTS The most frequent symptoms were reported for nasal obstruction, sneezing, and rhinorrhea. All nasal symptoms were significantly more profound among children with HDM sensitivity. However, more symptoms, not only nasal, but also ocular and general ones, were detected among patients with grass pollen sensitivity. Patients with PAR reported more severe symptoms. SAR was associated with mild disease. Finally, the sensitivity grade score was significantly correlated with symptom severity. CONCLUSIONS Our results suggest that allergen sensitivity may be correlated with symptomatology patterns among children who have allergic rhinitis. PMID- 29033450 TI - A Retrospective Chart Analysis with Follow-Up of Cogmed Working Memory Training in Children and Adolescents with Autism Spectrum Disorder. AB - BACKGROUND This case study was undertaken in an effort to assess whether children/adolescents with Autism Spectrum Disorder (ASD) experience improvement in comorbid ADHD following Cogmed Working Memory Training (CWMT). This treatment intervention has been shown to improve ADHD symptoms in children and adolescents; however, there have been no studies on its use with individuals with ASD. MATERIAL AND METHODS CWMT is a computer-based program that consists of 13 auditory, visual, visual spatial, and combined exercises that are practiced for 45 minutes a day, 5 days a week, for 5 weeks. Fifteen children/adolescents between the ages of 9 and 19 years with ASD and comorbid ADHD undertook a trial of CWMT. A 1-month follow-up and 2 longitudinal follow-ups were implemented. RESULTS The retrospective chart analysis and follow-up demonstrated improvement in attention and focus, impulsivity, emotional reactivity, and academic achievement in individuals with ASD and comorbid ADHD. Those benefits remained the same or increased over time. A number of participants also had benefits in their social interaction/social awareness. CONCLUSIONS CWMT has the potential to be an effective treatment intervention for children and adolescents with ASD because of its benign computer-based nature that seems to engage the unique learning style of this population. The authors hope that this paper will encourage others to study the ability of CWMT to be utilized in improving ADHD symptoms as well as social interaction/social awareness in individuals with ASD. PMID- 29033452 TI - Renal anaemia: iPSC-derived EPO-producing cells rescue anaemia. PMID- 29033453 TI - Polycystic kidney disease: Modulation of cystogenesis by the microenviroment. PMID- 29033451 TI - Dasatinib and Azacitidine Followed by Haploidentical Stem Cell Transplant for Chronic Myeloid Leukemia with Evolving Myelodysplasia: A Case Report and Review of Treatment Options. AB - BACKGROUND CML presenting with a variant Philadelphia translocation, atypical BCR ABL transcript, additional chromosomal aberrations, and evolving MDS is uncommon and therapeutically challenging. The prognostic significance of these genetic findings is uncertain, even as singular aberrations, with nearly no data on management and outcome when they coexist. MDS evolving during the course of CML may be either treatment-associated or an independently coexisting disease, and is generally considered to have an inferior prognosis. Tyrosine kinase inhibitors (TKI) directed against BCR-ABL are the mainstay of treatment for CML, whereas treatment modalities that may be utilized for MDS and CML include allogeneic stem cell transplant and - at least conceptually - hypomethylating agents. CASE REPORT Here, we describe the clinical course of such a patient, demonstrating that long term combined treatment with dasatinib and azacitidine for coexisting CML and MDS is feasible and well tolerated, and may be capable of slowing disease progression. This combination therapy had no deleterious effect on subsequent potentially curative haploidentical bone marrow transplantation. CONCLUSIONS The different prognostic implications of this unusual case and new therapeutic options in CML are discussed, together with a review of the current literature on CML presenting with different types of genomic aberrations and the coincident development of MDS. Additionally, this case gives an example of long-term combined treatment of tyrosine kinase inhibitors and hypomethylating agents, which could be pioneering in CML treatment. PMID- 29033454 TI - Gene regulation: Closing the loop on noisy gene expression. PMID- 29033455 TI - Genetic variation: Birds of a feather - genetic mapping of yellow pigmentation. PMID- 29033458 TI - Creating a Reliable, Cost-Effective ELISA Simulation. AB - The enzyme-linked immunosorbent assay (ELISA) is a fundamental laboratory technique with direct applications across scientific research and clinical diagnostics as well as everyday life. Unfortunately, many challenges exist that inhibit both its introduction and implementation in the high school biology classroom. We present a reliable yet inexpensive way of effectively simulating this assay, allowing student exposure to several advanced topics, including immunodetection, clinical diagnostics, and qualitative and quantitative colorimetric analysis. PMID- 29033456 TI - The DNA methyltransferase family: a versatile toolkit for epigenetic regulation. AB - The DNA methyltransferase (DNMT) family comprises a conserved set of DNA modifying enzymes that have a central role in epigenetic gene regulation. Recent studies have shown that the functions of the canonical DNMT enzymes - DNMT1, DNMT3A and DNMT3B - go beyond their traditional roles of establishing and maintaining DNA methylation patterns. This Review analyses how molecular interactions and changes in gene copy numbers modulate the activity of DNMTs in diverse gene regulatory functions, including transcriptional silencing, transcriptional activation and post-transcriptional regulation by DNMT2-dependent tRNA methylation. This mechanistic diversity enables the DNMT family to function as a versatile toolkit for epigenetic regulation. PMID- 29033459 TI - Instrumental variables as bias amplifiers with general outcome and confounding. AB - Drawing causal inference with observational studies is the central pillar of many disciplines. One sufficient condition for identifying the causal effect is that the treatment-outcome relationship is unconfounded conditional on the observed covariates. It is often believed that the more covariates we condition on, the more plausible this unconfoundedness assumption is. This belief has had a huge impact on practical causal inference, suggesting that we should adjust for all pretreatment covariates. However, when there is unmeasured confounding between the treatment and outcome, estimators adjusting for some pretreatment covariate might have greater bias than estimators without adjusting for this covariate. This kind of covariate is called a bias amplifier, and includes instrumental variables that are independent of the confounder, and affect the outcome only through the treatment. Previously, theoretical results for this phenomenon have been established only for linear models. We fill in this gap in the literature by providing a general theory, showing that this phenomenon happens under a wide class of models satisfying certain monotonicity assumptions. We further show that when the treatment follows an additive or multiplicative model conditional on the instrumental variable and the confounder, these monotonicity assumptions can be interpreted as the signs of the arrows of the causal diagrams. PMID- 29033460 TI - Mortality and morbidity in the 21st century. AB - We build on and extend the findings in Case and Deaton (2015) on increases in mortality and morbidity among white non-Hispanic Americans in midlife since the turn of the century. Increases in all-cause mortality continued unabated to 2015, with additional increases in drug overdoses, suicides, and alcohol-related liver mortality, particularly among those with a high-school degree or less. The decline in mortality from heart disease has slowed and, most recently, stopped, and this combined with the three other causes is responsible for the increase in all-cause mortality. Not only are educational differences in mortality among whites increasing, but from 1998 to 2015 mortality rose for those without, and fell for those with, a college degree. This is true for non-Hispanic white men and women in all five year age groups from 35-39 through 55-59. Mortality rates among blacks and Hispanics continued to fall; in 1999, the mortality rate of white non-Hispanics aged 50-54 with only a high-school degree was 30 percent lower than the mortality rate of blacks in the same age group but irrespective of education; by 2015, it was 30 percent higher. There are similar crossovers in all age groups from 25-29 to 60-64. Mortality rates in comparable rich countries have continued their pre-millennial fall at the rates that used to characterize the US. In contrast to the US, mortality rates in Europe are falling for those with low levels of educational attainment, and have fallen further over this period than mortality rates for those with higher levels of education. Many commentators have suggested that poor mortality outcomes can be attributed to contemporaneous levels of resources, particularly to slowly growing, stagnant, and even declining incomes; we evaluate this possibility, but find that it cannot provide a comprehensive explanation. In particular, the income profiles for blacks and Hispanics, whose mortality rates have fallen, are no better than those for whites. Nor is there any evidence in the European data that mortality trends match income trends, in spite of sharply different patterns of median income across countries after the Great Recession. We propose a preliminary but plausible story in which cumulative disadvantage from one birth cohort to the next, in the labor market, in marriage and child outcomes, and in health, is triggered by progressively worsening labor market opportunities at the time of entry for whites with low levels of education. This account, which fits much of the data, has the profoundly negative implication that policies, even ones that successfully improve earnings and jobs, or redistribute income, will take many years to reverse the mortality and morbidity increase, and that those in midlife now are likely to do much worse in old age than those currently older than 65. This is in contrast to an account in which resources affect health contemporaneously, so that those in midlife now can expect to do better in old age as they receive Social Security and Medicare. None of this implies that there are no policy levers to be pulled; preventing the over-prescription of opioids is an obvious target that would clearly be helpful. PMID- 29033457 TI - Emerging and evolving concepts in gene essentiality. AB - Gene essentiality is a founding concept of genetics with important implications in both fundamental and applied research. Multiple screens have been performed over the years in bacteria, yeasts, animals and more recently in human cells to identify essential genes. A mounting body of evidence suggests that gene essentiality, rather than being a static and binary property, is both context dependent and evolvable in all kingdoms of life. This concept of a non-absolute nature of gene essentiality changes our fundamental understanding of essential biological processes and could directly affect future treatment strategies for cancer and infectious diseases. PMID- 29033461 TI - Isotope-Labeled Aspartate Sidechain as a Non-Perturbing Infrared Probe: Application to Investigate the Dynamics of a Carboxylate Buried Inside a Protein. AB - Because of their negatively charged carboxylates, aspartate and glutamate are frequently found at the active or binding site of proteins. However, studying a specific carboxylate in proteins that contain multiple aspartates and/or glutamates via infrared spectroscopy is difficult due to spectral overlap. We show, herein, that isotopic-labeling of the aspartate sidechain can overcome this limitation as the resultant 13C=O asymmetric stretching vibration resides in a transparent region of the protein IR spectrum. Applicability of this site specific vibrational probe is demonstrated by using it to assess the dynamics of an aspartate ion buried inside a small protein via two-dimensional infrared spectroscopy. PMID- 29033462 TI - Acculturative Stress, Psychological Distress, and Religious Coping Among Latina Young Adult Immigrants. AB - Religion is a source of strength in Latina/o culture during challenging life transitions, such as the immigration process. Guided by a sociological stress process model, this study examines relations between dimensions of religious coping, acculturative stress, and psychological distress among 530 young Latina women (ages 18-23 years) who recently immigrated to the United States (i.e., approximately 12 months prior to assessment). Higher levels of acculturative stress were associated with higher levels of psychological distress. Negative religious coping (i.e., the tendency to struggle with faith) moderated the relation between acculturative stress and psychological distress. Participants experiencing higher levels of acculturative stress reported greater psychological distress when they indicated more negative religious coping. Positive religious coping (i.e., the tendency to relate to faith with comfort and certainty) was not linked with acculturative stress or psychological distress. Implications for culturally tailored counseling interventions for this underserved and understudied population are discussed. PMID- 29033463 TI - An Examination of the Most Recent Episode of Molly Use among College Students. AB - OBJECTIVE: The current study examined event-level characteristics (e.g., contextual factors, risk behaviors) during the most recent episode of Molly use among a sample of college students who reported previously using Molly. PARTICIPANTS: Participants (N = 151; 66.7% female) were drinkers aged 18 to 25. Data were collected from October to November 2014, February to April 2015, and September to November 2015. METHOD: Participants completed measures regarding typical Molly use and items related to context and behaviors during their most recent episode of Molly use. RESULTS: Findings revealed that our sample most commonly reported using Molly earlier in the evening while hanging out with friends or at a party. Additionally, sexual and other drug use behaviors commonly occurred when using Molly. CONCLUSIONS: Findings provide preliminary information in guiding future work exploring Molly use and potential substance-related issues associated with the context of when and how Molly is consumed. PMID- 29033464 TI - Beyond Orphanhood: Parental Nonresidence and Child Well-being in Tanzania. AB - This article used data from the Rufiji Health and Demographic Surveillance System in Tanzania to examine the influence of parental non-residence on child survival and school entry. Using survival analysis methods, the article tested variations by parent and by cause, examining parental death, non-residence due to parental relationship status, and migration. In general, maternal non-residence was more consequential for child survival, while paternal non-residence influences school entry. This is consistent with gendered parenting patterns in the setting. There was important variation by cause and by outcome, particularly for paternal non residence. Paternal non-residence due to non-marital birth was associated with increased risk of child death, while paternal migration was associated with improved survival. Paternal death and migration were associated with lower odds of school entry. This article moves beyond orphanhood to consider multiple causes of parental non-residence simultaneously, demonstrating that parental non residence is not uniformly deleterious for children. PMID- 29033465 TI - Parental Modeling and Deidentification in Romantic Relationships Among Mexican origin Youth. AB - This study investigated youth's modeling of and de-identification from parents in romantic relationships, using two phases of data from adolescent siblings, mothers, and fathers in 246 Mexican-origin families. Each parent reported his/her marital satisfaction and conflict, and youth reported on parent-adolescent warmth and conflict at Time 1. Youth's reports of modeling of and de-identification from their mothers and fathers and three romantic relationship outcomes were assessed at Time 2. Findings revealed that higher parental marital satisfaction, lower marital conflict, and higher warmth and lower conflict in parent-adolescent relationships were associated with more modeling and less de-identification from parents. Moreover, higher de-identification was linked to a greater likelihood of youth being involved in a romantic relationship and cohabitation, whereas more modeling was linked to a lower likelihood of cohabitation and older age of first sex. Discussion underscores the importance of assessing parental modeling and de identification and understanding correlates of these processes. PMID- 29033466 TI - Silane-Acrylate Chemistry for Regulating Network Formation in Radical Photopolymerization. AB - Photoinitiated silane-ene chemistry has the potential to pave the way toward spatially resolved organosilicon compounds, which might find application in biomedicine, microelectronics, and other advanced fields. Moreover, this approach could serve as a viable alternative to the popular photoinitiated thiol-ene chemistry, which gives access to defined and functional photopolymer networks. A difunctional bis(trimethylsilyl)silane with abstractable hydrogens (DSiH) was successfully synthesized in a simple one-pot procedure. The radical reactivity of DSiH with various homopolymerizable monomers (i.e., (meth)acrylate, vinyl ester, acrylamide) was assessed via 1H NMR spectroscopic studies. DSiH shows good reactivity with acrylates and vinyl esters. The most promising silane-acrylate system was further investigated in cross-linking formulations toward its reactivity (e.g., heat of polymerization, curing time, occurrence of gelation, double-bond conversion) and compared to state-of-the-art thiol-acrylate resins. The storage stability of prepared resin formulations is greatly improved for silane-acrylate systems vs thiol-ene resins. Double-bond conversion at the gel point (DBCgel) and overall DBC were increased, and polymerization-induced shrinkage stress has been significantly reduced with the introduction of silane acrylate chemistry. Resulting photopolymer networks exhibit a homogeneous network architecture (indicated by a narrow glass transition) that can be tuned by varying silane concentration, and this confirms the postulated regulation of radical network formation. Similar to thiol-acrylate networks, this leads to more flexible photopolymer networks with increased elongation at break and improved impact resistance. Additionally, swelling tests indicate a high gel fraction for silane-acrylate photopolymers. PMID- 29033467 TI - Poly(ethylene glycol)s in Semidilute Regime: Radius of Gyration in the Bulk and Partitioning into a Nanopore. AB - Using two approaches, small-angle neutron scattering (SANS) from bulk solutions and nanopore conductance-fluctuation analysis, we studied structural and dynamic features of poly(ethylene glycol) (PEG) water/salt solutions in the dilute and semidilute regimes. SANS measurements on PEG 3400 at the zero-average contrast yielded the single chain radius of gyration (Rg) over 1-30 wt %. We observed a small but statistically reliable decrease in Rg with increasing PEG concentration: at 30 wt % the chain contracts by a factor of 0.94. Analyzing conductance fluctuations of the alpha-hemolysin nanopore in the mixtures of PEG 200 with PEG 3400, we demonstrated that polymer partitioning into the nanopore is mostly due to PEG 200. Specifically, for a 1:1 wt/wt mixture the smaller polymer dominates to the extent that only about 1/25 of the nanopore volume is taken by the larger polymer. These findings advance our conceptual and quantitative understanding of nanopore polymer partitioning; they also support the main assumptions of the recent "polymers-pushing-polymers" model. PMID- 29033468 TI - The Aviation Paradox: Why We Can 'Know' Jetliners But Not Reactors. AB - Publics and policymakers increasingly have to contend with the risks of complex, safety-critical technologies, such as airframes and reactors. As such, 'technological risk' has become an important object of modern governance, with state regulators as core agents, and 'reliability assessment' as the most essential metric. The Science and Technology Studies (STS) literature casts doubt on whether or not we should place our faith in these assessments because predictively calculating the ultra-high reliability required of such systems poses seemingly insurmountable epistemological problems. This paper argues that these misgivings are warranted in the nuclear sphere, despite evidence from the aviation sphere suggesting that such calculations can be accurate. It explains why regulatory calculations that predict the reliability of new airframes cannot work in principle, and then it explains why those calculations work in practice. It then builds on this explanation to argue that the means by which engineers manage reliability in aviation is highly domain-specific, and to suggest how a more nuanced understanding of jetliners could inform debates about nuclear energy. PMID- 29033469 TI - A Bootstrap Metropolis-Hastings Algorithm for Bayesian Analysis of Big Data. AB - Markov chain Monte Carlo (MCMC) methods have proven to be a very powerful tool for analyzing data of complex structures. However, their computer-intensive nature, which typically require a large number of iterations and a complete scan of the full dataset for each iteration, precludes their use for big data analysis. In this paper, we propose the so-called bootstrap Metropolis-Hastings (BMH) algorithm, which provides a general framework for how to tame powerful MCMC methods to be used for big data analysis; that is to replace the full data log likelihood by a Monte Carlo average of the log-likelihoods that are calculated in parallel from multiple bootstrap samples. The BMH algorithm possesses an embarrassingly parallel structure and avoids repeated scans of the full dataset in iterations, and is thus feasible for big data problems. Compared to the popular divide-and-combine method, BMH can be generally more efficient as it can asymptotically integrate the whole data information into a single simulation run. The BMH algorithm is very flexible. Like the Metropolis-Hastings algorithm, it can serve as a basic building block for developing advanced MCMC algorithms that are feasible for big data problems. This is illustrated in the paper by the tempering BMH algorithm, which can be viewed as a combination of parallel tempering and the BMH algorithm. BMH can also be used for model selection and optimization by combining with reversible jump MCMC and simulated annealing, respectively. PMID- 29033470 TI - ANIMAL MIGRATION AS A MOVING TARGET FOR CONSERVATION: INTRA-SPECIES VARIATION AND RESPONSES TO ENVIRONMENTAL CHANGE, AS ILLUSTRATED IN A SOMETIMES MIGRATORY SONGBIRD. AB - Identifying important "migratory species" and the characteristics of their migrations might sound like a simple starting point for efforts to conserve and protect animal migrations. However, migrations are dynamic phenomena that vary over space and time, and migratory behaviors can vary substantially among closely related species, subspecies, races, or populations, and even among individual animals within a single population. The migratory behaviors of populations or individuals can also change rapidly-or be lost entirely-in response to habitat alteration or climate change. These complexities present both challenges and opportunities for initiatives to conserve animal migrations. In this Article, we discuss the concepts of intra-species variation in migration and the sensitivity of migrations to environmental change, and we consider the implications of these topics for legal, policy, management, and research agendas. PMID- 29033471 TI - Using Twitter for Demographic and Social Science Research: Tools for Data Collection and Processing. AB - Despite recent and growing interest in using Twitter to examine human behavior and attitudes, there is still significant room for growth regarding the ability to leverage Twitter data for social science research. In particular, gleaning demographic information about Twitter users-a key component of much social science research-remains a challenge. This article develops an accurate and reliable data processing approach for social science researchers interested in using Twitter data to examine behaviors and attitudes, as well as the demographic characteristics of the populations expressing or engaging in them. Using information gathered from Twitter users who state an intention to not vote in the 2012 presidential election, we describe and evaluate a method for processing data to retrieve demographic information reported by users that is not encoded as text (e.g., details of images) and evaluate the reliability of these techniques. We end by assessing the challenges of this data collection strategy and discussing how large-scale social media data may benefit demographic researchers. PMID- 29033472 TI - HISTOPATHOLOGICAL ANALYSIS OF THE F344 RAT LUNG UPON EXPOSURE TO RETENOIC ACID, OVALBUMIN, MOLD SPORES AND CITRAL. AB - The paradoxical role of retinoic acid (All Trans Retinoic Acid; ATRA) in the development of allergic and/or inflammatory complications in contrast to a therapeutic modality for lung pathology is not well understood or established in the literature. As well, the role of Citral (inhibitor of retinoid function; a non-toxic chemical that exists in two forms (diethyl; C1 or cis-trans dimethyl; C2), in the reversal of retinoic acid, ovalbumin and allergic mold spore pathophysiology is also not well ascertained under an in vivo setting. Therefore, it is hypothesized that exposure of F344 lung tissues to supra-physiologic levels of retinoic acid, ovalbumin and mold spores individually or in combination with each other will lead to inflammatory tissue pathology and that Citral 1 and 2 will reverse or ameliorate the related pathological damage to lung tissues. Even though ovalbumin and retinoic acid have been previously applied through intra tracheal route in cancer prevention and immunological research, the objective of this study was to evaluate the histopathological implications of such exposure in vivo. This IACUC approved in vivo study used Fischer 344 rats (n = 80 ; 229 to 273g), which were randomly assigned to controls as well as ovalbumin and mold sensitized treatment groups (0.80 mg/kg and 1*109 mold spores combined from 4 strains/100 MUl intra-tracheal; all others were dosed by intra-peritoneal injection at days 1 and 7 with 80 mg/kg each of ATRA as well as 20 and 50 mg/kg each of Citrals 1 or 2 individually or in combination to represent all four chemicals and mold spores treatments. Positive and negative controls for each treatment were also included in the study. Animals were housed in rat cages at the JSU Research Animal Core Facilities and were placed on a 12:12 light-dark cycle. A standard rodent diet and water access were provided ad libidum. All animals were sacrificed on day 21 and lung tissues were processed for histopathology. Slides were prepared and were digitized for comparison of tissues pathology. Results showed that exposure of the F344 rats to ovalbumin and ATRA showed various levels of lung tissue damage that was ameliorated by Citral 2 in combination. Mold and ATRA exposure caused various levels of lung tissue damage that was reversed by C1 in combination with each other. Taken together, the study showed that there are variable pathologic inflammatory responses from the interaction of ovalbumin, Citrals, mold spores and retinoic acid, and that the addition of Citrals have reversed lung tissue pathologies. These findings warrants further investigation as to the actual role of these interactions in relation to acute/chronic lung disease and the possibility of reversing retinoid mediated pathologies in the Fisher rat model. PMID- 29033473 TI - IMPACT OF ATRA ON OVALBUMIN AND MOLD-SENSITIZED F344 RATS AND REVERSAL OF HEALTH RELATED IMPLICATIONS BY CITRAL. AB - The role of retinoic acid (All Trans Retinoic Acid; ATRA) in the development of hypervitaminosis A pathophysiology is not well understood or established in the literature. As well, the role of Citral (inhibitor of retinoid function; a non toxic chemical that exists in two forms (diethyl; C1 or cis-trans dimethyl; C2).) in the reversal of pathophysiological implications is also not ascertained under an in vivo setting. Therefore, it is hypothesized that ovalbumin exposure will sensitize the body to supra-physiologic levels of retinoic acid leading to a negative pathophysiological impact and that Citrals 1 and 2 will reverse or ameliorate the related damage to the body's pathophysiology. Even though ovalbumin and retinoic have been previously applied through intra-tracheal route in cancer prevention and immunological research, the objective of this study was to evaluate their interaction as a remedy for hypervitaminosis A. This IACUC approved in vivo study used Fischer 344 rats (n = 80 ;229 to 273g), which were randomly assigned to controls as well as ovalbumin and mold-sensitized treatment groups (0.80 mg/kg and 1X109 mold spores combined from 4 strains/100 MUl intra tracheal; all others were dosed by intra-peritoneal injection at days 1 and 7 with 80 mg/kg each of ATRA as well as 20 and 50 mg/kg each of Citrals 1 or 2 individually or in combination to represent all four chemicals and mold spores treatments.. Positive and negative controls for each treatment were also included in the study. Animals were housed in rat cages at the JSU Research Animal Core Facilities and were placed on a 12:12 light dark cycle. A standard rodent diet and water access were provided ad-libidum. Rat weights were recorded on day 1 and 21, all animals were sacrificed on day 21 and blood was collected and processed for hematological parameters. Results showed that even though C1 and C2 were not toxic individually, their combination at high dosing was lethal. Exposure of ovalbumin-sensitized rats to ATRA showed various levels of weight losses and negative hematological implications that were ameliorated by exposure to Citrals at various combinations with retinoic acid. Taken together, the study showed that there are variable pathophysiological responses from the interaction of ovalbumin, mold spores and retinoic acid and that Citrals were found to be individually effective in reversing health-related pathophysiologies. These findings warrants further investigations as to the actual role of these interactions in relation to acute pathophysiologic health implications and the possibility of reversing hypervitaminosis A-mediated health-related impacts. PMID- 29033474 TI - Operation of a 140 GHz Gyro-amplifier using a Dielectric-loaded, Sever-less Confocal Waveguide. AB - The design and experimental results of a 140 GHz gyro-amplifier that uses a dielectric-loaded, sever-less confocal waveguide are presented. The gyro traveling wave amplifier uses the HE06 mode of a confocal geometry with power coupled in and out of the structure with Vlasov-type, quasi-optical couplers. Dielectric loading attached to the side of the confocal structure suppresses unwanted modes allowing zero-drive stable operation at 48 kV and 3A of beam current. The confocal gyro-amplifier demonstrated a peak circuit gain of 35 dB, a bandwidth of 1.2 GHz and a peak output power of 550 W at 140.0 GHz. PMID- 29033475 TI - The association between the MAOA 2R genotype and delinquency over time among men: the interactive role of parental closeness and parental incarceration. AB - Using a panel of 6,001 males from the National Longitudinal Study of Adolescent and Adult Health, we examine potential moderation by paternal incarceration and parent-child closeness altering the relationship between the rare 2R MAOA genotype and delinquency. By jointly examining moderation patterns for both the mother and father with the transmission of the MAOA genotype from mother to son, we are able to make inferences about the specific genetic model that best explains these outcomes. In line with prior research, we find a direct relationship between the MAOA 2R genotype and delinquency, independent of parental incarceration and closeness. Examining moderation patterns, we find that delinquency risk for the 2R allele is buffered for males close to their biological or social father, but not their biological mother. We conclude that the 2R delinquency association is not due to passive gene-environment correlation but is best characterized as a social control gene-environment interaction. PMID- 29033476 TI - Exploratory Item Classification Via Spectral Graph Clustering. AB - Large-scale assessments are supported by a large item pool. An important task in test development is to assign items into scales that measure different characteristics of individuals, and a popular approach is cluster analysis of items. Classical methods in cluster analysis, such as the hierarchical clustering, K-means method, and latent-class analysis, often induce a high computational overhead and have difficulty handling missing data, especially in the presence of high-dimensional responses. In this article, the authors propose a spectral clustering algorithm for exploratory item cluster analysis. The method is computationally efficient, effective for data with missing or incomplete responses, easy to implement, and often outperforms traditional clustering algorithms in the context of high dimensionality. The spectral clustering algorithm is based on graph theory, a branch of mathematics that studies the properties of graphs. The algorithm first constructs a graph of items, characterizing the similarity structure among items. It then extracts item clusters based on the graphical structure, grouping similar items together. The proposed method is evaluated through simulations and an application to the revised Eysenck Personality Questionnaire. PMID- 29033477 TI - Is Lhasa Tibetan Sign Language emerging, endangered, or both? AB - This article offers the first overview of the recent emergence of Tibetan Sign Language (TibSL) in Lhasa, capital of the Tibet Autonomous Region (TAR), China. Drawing on short anthropological fieldwork, in 2007 and 2014, with people and organisations involved in the formalisation and promotion of TibSL, the author discusses her findings within the nine-fold UNESCO model for assessing linguistic vitality and endangerment. She follows the adaptation of this model to assess signed languages by the Institute of Sign Languages and Deaf Studies (iSLanDS) at the University of Central Lancashire. The appraisal shows that TibSL appears to be between "severely" and "definitely" endangered, adding to the extant studies on the widespread phenomenon of sign language endangerment. Possible future influences and developments regarding the vitality and use of TibSL in Central Tibet and across the Tibetan plateau are then discussed and certain additions, not considered within the existing assessment model, suggested. In concluding, the article places the situation of TibSL within the wider circumstances of minority (sign) languages in China, Chinese Sign Language (CSL), and the post 2008 movement to promote and use "pure Tibetan language". PMID- 29033478 TI - Bayesian variable selection for a semi-competing risks model with three hazard functions. AB - A variable selection procedure is developed for a semi-competing risks regression model with three hazard functions that uses spike-and-slab priors and stochastic search variable selection algorithms for posterior inference. A rule is devised for choosing the threshold on the marginal posterior probability of variable inclusion based on the Deviance Information Criterion (DIC) that is examined in a simulation study. The method is applied to data from esophageal cancer patients from the MD Anderson Cancer Center, Houston, TX, where the most important covariates are selected in each of the hazards of effusion, death before effusion, and death after effusion. The DIC procedure that is proposed leads to similar selected models regardless of the choices of some of the hyperparameters. The application results show that patients with intensity-modulated radiation therapy have significantly reduced risks of pericardial effusion, pleural effusion, and death before either effusion type. PMID- 29033479 TI - Status Concern and Relative Deprivation in China: Measures, Empirical Evidence and Economic and Policy Implications. AB - Status concern and feelings of relative deprivation affect individual behaviour and well-being. Traditional norms and the alarming inequality in China have made relative deprivation increasingly intense for the Chinese population. This article reviews empirical literature on China that attempts to test the relative deprivation hypothesis, and also reviews the origins and pathways of relative deprivation, compares its economic measures in the literature and summarises the scientific findings. Drawing from solid empirical evidence, the author discusses the important policy implications on redistribution, official regulations and grassroots sanctions, and relative poverty alleviation. PMID- 29033480 TI - Photopharmacology. PMID- 29033481 TI - Adverse drug reaction monitoring in patients on antiretroviral therapy in a tertiary care hospital in Eastern India. AB - BACKGROUND: Besides unparalleled benefits, highly active antiretroviral therapy is also associated with wide range of potential adverse drug reactions (ADRs), which hinders treatment adherence. The present study was thus designed to monitor and explore the pattern of occurrence of ADRs to various antiretroviral therapy (ART) regimens in a tertiary care ART setup. MATERIALS AND METHODS: A prospective, observational clinical study was carried out in the outpatient setting of nodal ART center of Eastern India. A total of 610 patients on various ART regimens were studied for suspected ADRs over 12 months. Adverse event history, medication history, and other relevant details were captured. Causality and severity of each reported ADR were duly assessed. RESULTS: 32.45% patients of total study participants presented with a total of 330 ADRs. Patients from zidovudine-based regimens presented with majority of ADRs such as anemia (up to 36%), central nervous system (CNS), and gastrointestinal (GI) side effects. Tenofovir-based regimens were, however, found to be mildly safer. The combination with Efavirenz was associated with majorly CNS side effects while that of nevirapine was associated with rash and pigmentation of nails. Atazanavir boosted second-line regimens were notably associated with increased serum lipid levels followed by other GI and CNS adverse effects. Increased liver enzymes were found in atazanavir-based second-line ART. CONCLUSION: The study enables to obtain information on the incidence and pattern of ADRs associated with various antiretroviral regimens, thereby reducing its occurrence and protecting the patient population from avoidable harm. Need of intensive monitoring for ADRs in ARTs thus seems to be a mandate. PMID- 29033482 TI - In vitro antioxidant and in vivo antidepressant activity of green synthesized azomethine derivatives of cinnamaldehyde. AB - OBJECTIVES: In this study, three (CS-1 to CS-3) azomethine derivatives of cinnamaldehyde were green synthesized, characterized, and their antioxidant and antidepressant activities were explored. MATERIALS AND METHODS: The antioxidant effect of these compounds was initially performed in vitro using 1,1-diphenyl-2 picrylhydrazyl (DPPH) and 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assay methods before subjecting them to in vivo experiments. Compounds showing potent antioxidant activity (CS-1 and CS-2) were investigated further for their antidepressant activity using the forced swim test (FST) and tail suspension test (TST). Ascorbic acid (AA) and fluoxetine (20 mg/kg, p.o) were used as reference drugs for comparison in the antioxidant and antidepressant experiments, respectively. RESULTS: It was observed that CS-2 and CS-3 exhibited highest DPPH (half maximal inhibitory concentration [IC50]: 16.22 and 25.18 MUg/mL) and ABTS (IC50: 17.2 and 28.86 MUg/mL) radical scavenging activity, respectively, compared to AA (IC50: 15.73 and 16.79 MUg/mL) and therefore, both CS-2 and CS-3 were tested for their antidepressant effect using FST and TST as experimental models. Pretreatment of CS-2 and CS-3 (20 mg/kg) for 10 days considerably decreased the immobility time in both the FST and TST models. CONCLUSION: The antioxidant and antidepressant effect of CS-2 and CS-3 may be attributed to the presence of azomethine linkage in the molecule. PMID- 29033483 TI - The impact of antidepressant treatment on brain-derived neurotrophic factor level: An evidence-based approach through systematic review and meta-analysis. AB - OBJECTIVES: Antidepressant treatment alters brain-derived neurotrophic factor (BDNF) levels, but it is not well established whether BDNF can be used as a marker to prove the efficacy of antidepressant treatment. The present systematic review and meta-analysis aim at assessing the influence of antidepressant treatment on BDNF level and the Hamilton Depression Rating Scale (HDRS) score, thereby to establish the rationale of utilizing BDNF as a predictive biomarker and HDRS score as an indicator for antidepressant treatment efficacy. MATERIALS AND METHODS: Search was conducted in PubMed, Science Direct, and Cochrane databases using the key words "BDNF" and "Depression" and "Antidepressants." On the basis of the inclusion and exclusion criteria, studies were filtered and finally 6 randomized controlled trials were shortlisted. RESULTS: Comparison of serum BDNF level before and after antidepressant treatment was performed and the result showed that antidepressant treatment does not significantly affect the BDNF levels (confidence interval [CI]: -0.483 to 0.959; standard mean difference [SMD]: 0.238, P = 0.518). Egger's regression test (P = 0.455) and heterogeneity test (I2 = 88.909%) were done. Similarly, comparison of HDRS scores before and after antidepressant treatment indicated improvement in HDRS score suggesting positive outcome (CI: 1.719 to 3.707; SMD: 2.713, P < 0.001). Egger's regression test (P = 0.1417) and heterogeneity test (I2 = 89.843%) were performed. Publication bias was observed by funnel plot. CONCLUSION: Changes in BDNF levels do not occur uniformly for all the antidepressants. Hence, to use BDNF as a biomarker, it needs to be seen whether the same is true for all antidepressants. PMID- 29033485 TI - Correlation of long-term glycemic control as measured by glycated hemoglobin with serum angiopoietin-like 6 protein levels in type 2 diabetes mellitus patients. AB - AIMS: Angiopoietin-like growth factors (ANGPTLs) regulate glucose, lipid homeostasis, and insulin sensitivity. This study aimed to find whether long-term glycemic control (glycated hemoglobin [HbA1c]) has any correlation with serum ANGPTL6 levels in patients of type 2 diabetes mellitus. MATERIALS AND METHODS: It was an open-label, observational, prospective clinical study. Sixty-five participants (41 diabetic patients receiving daily dose of oral metformin for a minimum of 3 months and 24 matched controls) completed the study. A single venous blood sample was taken from each participant to determine serum HbA1c and serum ANGPTL6 levels. Comparison of serum ANGPTL6 levels according to the HbA1c levels, in groups A, B, and C ranging from 6.5%-8%, 8.1%-9.5%, and >9.5%, respectively, was done using Kruskal-Wallis H-test followed by pairwise comparisons. RESULTS: Serum HbA1c and serum ANGPTL6 levels were raised significantly (P < 0.05) in diabetic patients when compared with control participants. A positive correlation was observed between serum HbA1c and serum ANGPTL6 levels (r = 0.88, 95% confidence interval 0.81, 0.92). Mean ANGPTL6 level for Group A (n = 20) was 394.3 pg/ml, for Group B (n = 8) 692.8 pg/ml, and for Group C (n = 13) 896.2 pg/ml. CONCLUSIONS: Serum ANGPTL6 levels were significantly higher in type 2 diabetic patients in comparison with healthy controls. Poor glycemic control in diabetes mellitus as reflected by higher serum HbA1c levels is associated with raised serum ANGPTL6 levels. PMID- 29033484 TI - Congenital malformation and autism spectrum disorder: Insight from a rat model of autism spectrum disorder. AB - AIMS AND OBJECTIVES: The primary aim was an evaluation of the pattern of gross congenital malformations in a rat model of autism spectrum disorder (ASD) and the secondary aim was characterization of the most common gross malformation observed. MATERIALS AND METHODS: In females, the late pro-oestrous phase was identified by vaginal smear cytology, and then, they were allowed to mate at 1:3 ratio (male: female). Pregnancy was confirmed by the presence of sperm plug in the vagina and presence of sperm in the vaginal smear. In the ASD group, ASD was induced by injecting valproic acid 600 mg/kg (i.p.) to pregnant female rats (n = 18) on day 12.5 (single injection). Only vehicle (normal saline) was given in the control group (n = 12). After delivery, pups were grossly observed for congenital malformations until the time of sacrifice (3 months) and different types of malformations and their frequency were noted and characterized. RESULTS: In the ASD group, congenital malformation was present in 69.9% of the pups, whereas in the control group, it was 0%. Male pups were most commonly affected (90% in males vs. only 39.72% in female pups). The tail deformity was the most common malformation found affecting 61.2% pups in the ASD group. Other malformations observed were dental malformation (3.82%), genital malformation (3.28%) and paw malformation (1.1%). Hind limb paralysis was observed in one pup. The tail anomalies were characterized as per gross appearance and location of the malformation. CONCLUSION: In this well-validated rat model of ASD, congenital malformation was quite common. It seems screening of congenital malformations should be an integral part of the management of ASD, or the case may be vice versa, i.e., in the case of a baby born with a congenital deformity, they should be screened for ASD. PMID- 29033488 TI - Automated Liver Elasticity Calculation for 3D MRE. AB - Magnetic Resonance Elastography (MRE) is a phase-contrast MRI technique which calculates quantitative stiffness images, called elastograms, by imaging the propagation of acoustic waves in tissues. It is used clinically to diagnose liver fibrosis. Automated analysis of MRE is difficult as the corresponding MRI magnitude images (which contain anatomical information) are affected by intensity inhomogeneity, motion artifact, and poor tissue- and edge-contrast. Additionally, areas with low wave amplitude must be excluded. An automated algorithm has already been successfully developed and validated for clinical 2D MRE. 3D MRE acquires substantially more data and, due to accelerated acquisition, has exacerbated image artifacts. Also, the current 3D MRE processing does not yield a confidence map to indicate MRE wave quality and guide ROI selection, as is the case in 2D. In this study, extension of the 2D automated method, with a simple wave-amplitude metric, was developed and validated against an expert reader in a set of 57 patient exams with both 2D and 3D MRE. The stiffness discrepancy with the expert for 3D MRE was -0.8% +/- 9.45% and was better than discrepancy with the same reader for 2D MRE (-3.2% +/- 10.43%), and better than the inter-reader discrepancy observed in previous studies. There were no automated processing failures in this dataset. Thus, the automated liver elasticity calculation (ALEC) algorithm is able to calculate stiffness from 3D MRE data with minimal bias and good precision, while enabling stiffness measurements to be fully reproducible and to be easily performed on the large 3D MRE datasets. PMID- 29033486 TI - Topiramate-induced acute liver injury: A rare adverse effect. AB - Idiosyncratic drug-induced liver injury (DILI) is damage to liver occurring at recommended dose of a drug in contrast to toxic or predictable DILI. Although it is common in first-generation antiepileptic drugs (AEDs), it is rare in newer AEDs such as topiramate. Topiramate commonly causes neurological adverse effects such as psychomotor slowing and somnolence. Hepatotoxicity by topiramate is rare and has been previously reported in combination with other drugs such as valproate and carbamazepine. Here, we report a case of topiramate-induced asymptomatic elevation of liver enzymes in an adult man diagnosed with alcohol dependence syndrome and alcohol withdrawal complicated with seizures. PMID- 29033487 TI - Gingival hyperplasia: Should drug interaction be blamed for? AB - Gingival overgrowth (GO) is one of the common findings in clinical practice. There could be several causes including drugs associated with the GO. Carbamazepine (CBZ) and amlodipine are the drugs which are infrequently documented as a cause in inducing the gingival hyperplasia. Certain drugs in the body fluid might limit the population of plaque bacteria and alter their metabolism that in turn induce the inflammatory mediators and also activate the genetic and biochemical factors responsible for gingival fibroblast growth. Drug induced GO is a side effect with a multifactorial etiology that seems to orchestrate the interaction between drugs and fibroblasts in the gingiva. We describe a case of trigeminal neuralgia with hypertension treated with multiple drugs including amlodipine and CBZ. Although amlodipine is known to be infrequently associated with GO, an association of CBZ with GO is even rarer. Causality analysis on the World Health Organization Uppsala Monitoring Centre's scale indicates a probable association with offending drugs. PMID- 29033489 TI - Exact and Approximate Statistical Inference for Nonlinear Regression and the Estimating Equation Approach. AB - The exact density distribution of the nonlinear least squares estimator in the one-parameter regression model is derived in closed form and expressed through the cumulative distribution function of the standard normal variable. Several proposals to generalize this result are discussed. The exact density is extended to the estimating equation (EE) approach and the nonlinear regression with an arbitrary number of linear parameters and one intrinsically nonlinear parameter. For a very special nonlinear regression model, the derived density coincides with the distribution of the ratio of two normally distributed random variables previously obtained by Fieller (1932), unlike other approximations previously suggested by other authors. Approximations to the density of the EE estimators are discussed in the multivariate case. Numerical complications associated with the nonlinear least squares are illustrated, such as nonexistence and/or multiple solutions, as major factors contributing to poor density approximation. The nonlinear Markov-Gauss theorem is formulated based on the near exact EE density approximation. PMID- 29033490 TI - Carbon dioxide emission-intensity in climate projections: Comparing the observational record to socio-economic scenarios. AB - The wide spread of projected temperature changes in climate projections does not predominately originate from uncertainty across climate models; instead it is the broad range of different global socio-economic scenarios and the implied energy production that results in high uncertainty about future climate change. It is therefore important to assess the observational tracking of these scenarios. Here we compare these socio-economic scenarios created in both 1992 and 2000 against the recent observational record to investigate the coupling of economic growth and fossil-fuel CO2 emissions. We find that global emission intensity (fossil fuel CO2 emissions per GDP) rose in the first part of the 21st century despite all major climate projections foreseeing a decline. Proposing a method to disaggregate differences between scenarios and observations in global growth rates to country-by-country contributions, we find that the relative discrepancy was driven by unanticipated GDP growth in Asia and Eastern Europe, in particular in Russia and China. The growth of emission intensity over the 2000s highlights the relevance of unforeseen local shifts in projections on a global scale. PMID- 29033492 TI - OPTIMAL DESIGNS FOR SPLINE WAVELET REGRESSION MODELS. AB - In this article we investigate the optimal design problem for some wavelet regression models. Wavelets are very flexible in modeling complex relations, and optimal designs are appealing as a means of increasing the experimental precision. In contrast to the designs for the Haar wavelet regression model (Herzberg and Traves 1994; Oyet and Wiens 2000), the I-optimal designs we construct are different from the D-optimal designs. We also obtain c-optimal designs. Optimal (D- and I-) quadratic spline wavelet designs are constructed, both analytically and numerically. A case study shows that a significant saving of resources may be realized by employing an optimal design. We also construct model robust designs, to address response misspecification arising from fitting an incomplete set of wavelets. PMID- 29033491 TI - The Association of Attitudes about Contraceptives with Contraceptive Use in a Random Sample of Colorado Women. AB - CONTEXT: Research regarding unintended pregnancy often focuses on how women make decisions about whether or not to use contraceptives, and structural barriers to contraception. Less research examines how multidimensional attitudinal characteristics may be associated with effective contraceptive use. METHODS: In fall 2007, we conducted a random telephone survey of 801 sexually active women in Colorado to assess associations of the attitudinal dimensions of Planning, Partner Communication, and Stigma and Misinformation with contraceptive use. We also examine demographic differences on hypothesized predictors. RESULTS: Stigma and Misinformation is higher in Latina women, women on Medicaid or with no insurance, women with less than a college degree, and women living in small towns or rural areas. Partner Communication attitudes are most positive among those with a bachelor's degree, and those with less than a high school degree, while they are most negative among those living in small towns and rural areas. In multivariate analysis, planning to use contraceptives is associated with greater likelihood of more effective contraceptive use. Higher levels of planning and partner communication are associated with greater likelihood of any contraceptive use. DISCUSSION: In addition to addressing structural barriers to contraception, interventions to address the need to plan for contraception are vital to mitigate the high prevalence of unintended pregnancies in the United States. PMID- 29033493 TI - Person-Centeredness in Home- and Community-Based Services and Supports: Domains, Attributes, and Assisted Living Indicators. AB - As a result of the Centers for Medicare & Medicaid Services (CMS) interest in creating a unifying definition of "community living" for its Medicaid Home and Community Based Services and Support (HCBS) programs, it needed clarifying descriptors of person-centered (PC) practices in assisted living to distinguish them from institutional ones. Additionally, CMS's proposed language defining "community living" had the unintended potential to exclude many assisted living communities and disadvantage residents who receive Medicaid. This manuscript describes the consensus process through which clarifying language for "community living" and a framework for HCBS PC domains, attributes, and indicators specific to assisted living were developed. It examines the validity of those domains based on literature review, surveys, and stakeholder focus groups, and identifies nine domains and 43 indicators that provide a foundation for defining and measuring PC practice in assisted living. Ongoing efforts using community-based participatory research methods are further refining and testing PC indicators for assisted living to advance knowledge, operational policies, practices, and quality outcomes. PMID- 29033494 TI - Family Closeness and Domestic Abuse Among Caribbean and South American Women in South Florida. AB - This paper focuses on the importance of family member closeness as a protective factor against domestic abuse. We explore the link between long-lasting relations within the family and intra-familial violence perpetrated against women in Latino households in South Florida. We use data from an Inter-generational Transmission of Drug Use between Latina Mothers and Daughters (ITDMD) study. The study includes data on family relations and domestic abuse. We estimate a series of multivariate regressions to obtain the probability of abuse against women, the types of abuse inflicted and the relationship with the abusers. Our results indicate that among abused women, the effects of long-lasting relations within the family differ depending on the type of relationship between the abuser and the victim and the degree of closeness the victim feels towards other family members. Given these findings, there is a need to further study family relations and abuse in Latino households. PMID- 29033495 TI - Age of First Arrest, Sex, and Drug Use as Correlates of Adult Risk Behaviors Among Rural Women in Jails. AB - Incarcerated women frequently report initiation of substance use and sexual encounters at an early age, and often engage in high-risk drug use and sexual behaviors as adults. This study examined the timing of first sex, drug use, and arrest, as well as their unique influences on specific risky behaviors in adulthood, among a high-risk population of rural women recruited from jails. Ages of initiation were all positively and significantly correlated, and each independently increased the likelihood of several risky behaviors in adulthood. Implications are discussed for screening, intervention, and treatment targeting high-risk women and girls in rural areas, particularly within criminal justice settings. PMID- 29033497 TI - Investigation into the ring-substituted polyanilines and their application for the detection and adsorption of sulfur dioxide. AB - It has been demonstrated in this study that the substituents on the monomer aniline benzene ring are able to introduce the significant differences to the resulting polyaniline's collective properties. We systematically evaluated the structural perturbation effects of two substituents (methyl and methoxy) of aniline monomer through the electrochemical method. Our results showed that the methoxy group induces the less structural perturbation than the methyl counterpart, because of its partial double bond restriction. The morphologies are different for the polyaniline and the ring-substituted polyanilines, in which substituted polyanilines feature the larger porosities with the addition of these side groups. The influential effects of the methoxy side group have been further illustrated and amplified by its superior sensing performance towards the environmentally-significant sulfur dioxide gas, evaluated through the construction of the quartz crystal microbalance (QCM)-based gas sensor with these polyaniline materials. The as-constructed gas sensor's sensitivity, selectivity and stability in terms of its SO2 responses have been evaluated in details. The methoxy-substituted polyaniline was tested to show the unique gas sensing properties for the sulfur dioxide at the low concentrations (50-250 ppm) and function as the adsorbing material at the high concentrations (500-1250 ppm). Thus it can be used both as sensing material as well as a novel filter and/or storage reservoir for the removal of sulfur dioxide pollutant from the environments. PMID- 29033496 TI - Colloidal CuFeS2 Nanocrystals: Intermediate Fe d-Band Leads to High Photothermal Conversion Efficiency. AB - We describe the colloidal hot-injection synthesis of phase-pure nanocrystals (NCs) of a highly abundant mineral, chalcopyrite (CuFeS2). Absorption bands centered at around 480 and 950 nm, spanning almost the entire visible and near infrared regions, encompass their optical extinction characteristics. These peaks are ascribable to electronic transitions from the valence band (VB) to the empty intermediate band (IB), located in the fundamental gap and mainly composed of Fe 3d orbitals. Laser-irradiation (at 808 nm) of an aqueous suspension of CuFeS2 NCs exhibited significant heating, with a photothermal conversion efficiency of 49%. Such efficient heating is ascribable to the carrier relaxation within the broad IB band (owing to the indirect VB-IB gap), as corroborated by transient absorption measurements. The intense absorption and high photothermal transduction efficiency (PTE) of these NCs in the so-called biological window (650-900 nm) make them suitable for photothermal therapy as demonstrated by tumor cell annihilation upon laser irradiation. The otherwise harmless nature of these NCs in dark conditions was confirmed by in vitro toxicity tests on two different cell lines. The presence of the deep Fe levels constituting the IB is the origin of such enhanced PTE, which can be used to design other high performing NC photothermal agents. PMID- 29033498 TI - A new proof of geometric convergence for the adaptive generalized weighted analog sampling (GWAS) method. AB - Generalized Weighted Analog Sampling is a variance-reducing method for solving radiative transport problems that makes use of a biased (though asymptotically unbiased) estimator. The introduction of bias provides a mechanism for combining the best features of unbiased estimators while avoiding their limitations. In this paper we present a new proof that adaptive GWAS estimation based on combining the variance-reducing power of importance sampling with the sampling simplicity of correlated sampling yields geometrically convergent estimates of radiative transport solutions. The new proof establishes a stronger and more general theory of geometric convergence for GWAS. PMID- 29033499 TI - Fabrication and Characterization of Electrospun Thermoplastic Polyurethane/Fibroin Small-Diameter Vascular Grafts for Vascular Tissue Engineering. AB - The demand for small-diameter blood vessel substitutes has been increasing due to a shortage of autograft vessels and problems with thrombosis and intimal hyperplasia with synthetic grafts. In this study, hybrid small-diameter vascular grafts made of thermoplastic polyurethane (TPU) and silk fibroin, which possessed a hybrid fibrous structure of an aligned inner layer and a random outer layer, were fabricated by the electrospinning technique using a customized striated collector that generated both aligned and random fibers simultaneously. A methanol post-treatment process induced the transition of fibroin protein conformation from the water-soluble, amorphous, and less ordered structures to the water-insoluble beta-sheet structures that possessed robust mechanical properties and relatively slow proteolytic degradation. The methanol post treatment also created crimped fibers that mimicked the wavy structure of collagen fibers in natural blood vessels. Ultrafine nanofibers and nanowebs were found on the electrospun TPU/fibroin samples, which effectively increased the surface area for cell adhesion and migration. Cyclic circumferential tensile test results showed compatible mechanical properties for grafts made of a soft TPU/fibroin blend compared to human coronary arteries. In addition, cell culture tests with endothelial cells after 6 and 60 days of culture exhibited high cell viability and good biocompatibility of TPU/fibroin grafts, suggesting the potential of applying electrospun TPU/fibroin grafts in vascular tissue engineering. PMID- 29033500 TI - Synthesis of 3,3'-Disubstituted Indolenines Utilizing the Lewis Acid Catalyzed Alkylation of 2,3-Disubstituted Indoles with Trichloroacetimidates. AB - Trichloroacetimidates function as effective electrophiles for the selective C3 alkylation of 2,3-disubstituted indoles to provide 3,3'-disubstituted indolenines. These indolenines are common synthetic intermediates that are often utilized in the synthesis of complex molecules. Effective reaction conditions utilizing Lewis acid catalysts have been determined, and the scope of the reaction with respect to indole and imidate reaction partner has been investigated. This chemistry provides an alternative to base promoted and transition metal catalyzed methods that are more commonly utilized to access similar indolenines. PMID- 29033501 TI - Eight-Channel Monopole Array Using ICE Decoupling for Human Head MR Imaging at 7 T. AB - Due to the unique structure of radiative coil elements, traditional decoupling methods face technical challenges in reducing the electromagnetic coupling of the radiative arrays. In this study, we aim to investigate the possibility of using the recently introduced induced current elimination (ICE) decoupling technique for cylindrical shaped radiative coil array designs. To evaluate the method, an eight-channel transmit/receive monopole array with the ICE decoupling, suitable for human head imaging at 7 T, was built and comparatively investigated. In vivo human head images were acquired and geometry factor maps were measured and calculated to evaluate the performance of the ICE-decoupled monopole array. Compared with the monopole array without decoupling methods, the ICE-decoupled monopole array had a higher signal-to-noise ratio and demonstrated improved parallel imaging ability. The experimental results indicate that the ICE decoupling method is a promising solution to addressing the coupling issue of radiative array at ultrahigh fields. PMID- 29033502 TI - Biomechanical model based evaluation of Total Hip Arthroplasty therapy outcome. AB - OBJECTIVE: Total-hip-arthroplasties are performed to treat patients with osteoarthritis. Surgical planning is usually based on specific radiographs. These information could also be used as data for biomechanical modelling. METHODS: Models are rarely used during clinical practice. Our aim was to analyze model based the pre- and postoperatively hip-biomechanic. Pre- and postoperative X-rays of 30 patients were examined by using 4 biomechanical-models. RESULTS: The received results showed variations e.g. an increase and decrease of hip-load pre- and postoperative. CONCLUSION: With the data of these models it would be possible to integrate the amplitude and orientation of the hip-joint-resultant-force into the therapeutical approach. PMID- 29033503 TI - The Management and Prognostic Factors of Acute Coronary Syndrome: Evidence from the Taiwan Acute Coronary Syndrome Full Spectrum Registry. AB - Cardiovascular disease (CVD) accounts for approximately one-third of all global deaths, and acute coronary syndrome (ACS) is the most severe form of CVD. It is of notable importance to develop ACS strategies for reducing major adverse cardiac events (MACE) and preventing complications. In the Taiwan ACS Full Spectrum Registry, 1-year mortality among patients with ST-segment elevation myocardial infarction, non ST-segment elevation myocardial infarction and unstable angina was 6.1%, 10.1%, and 6.2%, respectively. ACS patients with diabetes had significantly worse outcomes in terms of all-cause death and MACE compared to those without diabetes. In-hospital bleeding or chronic kidney disease (CKD) was independently associated with MACE, and ACS patients with both bleeding and CKD had the worst outcome. Use of clopidogrel in conjunction with an invasive strategy could decrease mortality and improve outcomes in the CKD population. CHADS2 and CHA2DS2-VASc scores were useful predictors of subsequent MACE, and renal dysfunction could further improve the prognostic impact of the CHA2DS2-VASc score. For high-risk patients with non-ST-elevation acute coronary syndrome (NSTE-ACS), percutaneous coronary intervention (PCI) within 24-72 hours from symptom onset was demonstrably the optimal time. Suboptimal secondary preventive therapy demonstrated a need for further improvement. The ACS Full Spectrum Registry provided an in-depth analysis of ACS management in Taiwan. PMID- 29033505 TI - Transcatheter Aortic Valve Implantation in Taiwan: Still Evolving! PMID- 29033504 TI - Procedural Characteristics and Outcomes of Transcatheter Aortic Valve Implantation: A Single-Center Experience of the First 100 Inoperable or High Surgical Risk Patients with Severe Aortic Stenosis. AB - BACKGROUND: This is the first study of a Taiwanese population reporting transcatheter aortic valve implantation (TAVI) outcomes of the first 100 cases from a single center offering two different transcatheter heart valve technologies via six types of approaches. We herein report the 30-day and one year outcomes in our first 100 TAVI patients at Taipei Veterans General Hospital. METHODS: From May 2010 to April 2016, 100 consecutive patients with severe aortic stenosis (AS) who were considered unsuitable or at high risk for surgical aortic valve replacement underwent TAVI. Patient outcomes were classified according to the Valve Academic Research Consortium-2 (VARC-2) definitions. The device performance was assessed using transthoracic echocardiography by independent investigators. RESULTS: The mean patient age was 81.1 years, where 54% were female, and the mean Logistic EuroSCORE was 21.5%. The Medtronic CoreValve was used in 84 patients and the Edwards Sapien or Sapien XT valve (ESV) in 16. The transfemoral approach was the most frequently used route (83%), followed by transapical (9%) access. Overall, there was no procedural death. The VARC-2 outcomes were as follows: device success, 95%; stroke, 1%; major vascular complication, 3%; a need for pacemaker implantation, 5.1%. At discharge, the incidence of postoperative mild, moderate or severe paravalvular leak was 30%, 3% and 0%, respectively. At one year, the all-cause mortality rate was 14.0%, and no valve-related dysfunction was observed. Through multivariable analysis, non transfemoral access [hazard ratios (HR) 4.81; 95% confidence interval (CI) 1.66 14.09; p = 0.004] and advanced chronic kidney disease (stages 4-5), (HR 3.13; 95% CI 1.07-9.09; p = 0.036) were independently associated with an increased risk of one-year mortality. CONCLUSIONS: We demonstrated that TAVI shows good early and mid-term outcomes in terms of survival, technical success, valve-related adverse events and haemodynamic performance in high-risk patients with severe AS. PMID- 29033506 TI - The Impact of Fractional Flow Reserve-Guided Coronary Revascularization in Patients with Coronary Stenoses of Intermediate Severity. AB - BACKGROUND: Previous studies have shown that the use of fractional flow reserve (FFR) in addition to angiography significantly reduced the rate of all major adverse cardiovascular events (MACE). However, this practice has not been widely accepted and limited outcome data exist about FFR-guided percutaneous coronary intervention (PCI) in Taiwan. The aim of the present study was to evaluate the possible impact of FFR-guided PCI in coronary stenoses of intermediate severity. METHODS: We performed a retrospective case-control study on 443 cases of intermediate coronary stenoses in 206 patients recruited from our computerized database. The study patients were divided into two groups: the FFR group (n = 101) and the angiography group (n = 105), matched with age, gender, clinical and angiographic lesion characteristics. In the angiography group, the indicated lesions had been treated with PCI by angiographic or anatomical assessment, whereas those patients in the FFR group underwent PCI of indicated lesions only if the FFR was < 0.80. The primary end point was the MACE rate regarding death, nonfatal myocardial infarction (MI), and target vessel failure at a mean follow up of 418 days. RESULTS: The MACE rate was similar in both groups (6% in the angiography group and 3% in the FFR group, p = 0.06). However, FFR-guided PCI strategy prevented unnecessary revascularization in up to 75% of patients, and markedly reduced costs of the index hospitalization. Moreover, multivariate analysis found that the use of drug-eluting stent and statin therapy, and the presence of family history of premature coronary artery disease and periprocedural MI are independent predictors of clinical outcomes. CONCLUSIONS: FFR-guided intervention, compared to angiography-guided intervention for Taiwanese patients with coronary stenoses of intermediate severity, achieved similar clinical outcomes and provided cost-savings. PMID- 29033507 TI - SYNTAX Score of Infarct-Related Artery Other Than the Number of Coronary Balloon Inflations and Deflations as an Independent Predictor of Contrast-Induced Acute Kidney Injury in Patients with ST-Segment Elevation Myocardial Infarction. AB - BACKGROUND: Although remote ischemic post-conditioning (RIPC) has been shown to prevent contrast-induced acute kidney injury (CIAKI) in patients with acute coronary syndrome, its efficacy in patients with ST-segment elevation myocardial infarction (STEMI) remains unclear. We examined the relationship among balloon inflations and deflations (BID) times, SYNTAX score of infarction-related artery (SI), periprocedural complications, and CIAKI in STEMI patients undergoing primary percutaneous coronary intervention (pPCI). METHODS: Patients with STEMI undergoing pPCI with Mehran risk score (MRS) >= 5 were enrolled between February 2007 and September 2012. The study end point was the development of CIAKI. RESULTS: Of 206 patients, the median age was 65 years [interquartile range (IQR): 55-77] with 72.8% male and Mehran risk score (MRS) 8 (IQR: 6-12). Receiver operating characteristic curve showed that BID times > 9 times or SI > 10 was the best cut-off associated with CIAKI. In univariate analysis, significant association with CIAKI existed in BID > 9 times [odds ratio (OR): 3.106, 95% confidence interval (CI): 1.284-7.513, p = 0.012] and SI > 10 (OR: 3.909, 95% CI: 1.570-9.735, p = 0.003). Other variables associated with CIAKI included creatinine, hemoglobin, angiotensin converting enzyme inhibitor or angiotensin receptor blocker use at discharge. In multivariate analysis, SI > 10 remained an independent predictor of CIAKI in different adjustment model, even on top of MRS (adjusted OR: 3.498, 95% CI: 1.086-11.268, p = 0.036). CONCLUSIONS: Vascular complexity of infarct-related artery rather than higher BID times (> 9) was the major determinant of the development of CIAKI after pPCI in STEMI patients. PMID- 29033508 TI - Predictors of Mortality in Elderly Patients with Non-ST Elevation Acute Coronary Syndrome - Data from Taiwan Acute Coronary Syndrome Full Spectrum Registry. AB - BACKGROUND: Some difficulties and variations remain associated with the care of elderly patients with non-ST elevation acute coronary syndrome (NSTE-ACS). METHODS: We included 1470 patients from a Taiwan nationwide registry who fulfilled the criteria of NSTE-ACS, and stratified these patients by age and evaluated the treatment, complications and outcomes in different age groups. Furthermore, we analyzed risk factors and standards of care to determine the predictors of mortality. RESULTS: Patients >= 75 years of age (n = 396) had significantly higher incidences of 90-day mortality [odd ratio (OR) = 4.5 (1.2 16.3), p = 0.023] and 1-year mortality [OR = 4.9 (2.0-12.3), p = 0.001] compared with those patients 45-64 years of age (n = 595). In the patients >= 75 years of age, previous myocardial infarction (MI) [OR = 3.3 (1.1-9.8), p = 0.035], statins [OR = 0.35 (0.1-0.9), p = 0.037], left ventricular ejection fraction (LVEF) < 35% [OR = 3.9 (1.5-10.4), p = 0.006] were associated with 90-day mortality. Furthermore, previous MI [OR = 4.0 (1.3-12.6), p = 0.019] was an independent predictor of 90-day mortality. Age [OR = 1.1 (1.03-1.2), p = 0.002], previous MI [OR = 2.2 (1.1-4.4), p = 0.034], angiotensin-converting enzyme inhibitor or angiotensin receptor blocker [OR = 0.5 (0.3-0.9), p = 0.028], and LVEF < 35% [OR = 4.3 (1.9-9.5), p < 0.001] were associated with 1-year mortality. Furthermore, previous MI [OR = 2.6 (1.1-6.5), p = 0.037], LVEF < 35% [OR = 4.7 (1.5-14.4), p = 0.007] and percutaneous coronary intervention(PCI) or not [OR = 0.3 (0.1-0.9), p = 0.021] were independent predictors of 1-year mortality. CONCLUSIONS: Previous MI, LVEF < 35% and PCI or not could predict 1-year mortality in advanced elderly patients with NSTE-ACS. Despite their elevated morbidities and complications, PCI was still beneficial for these patients. PMID- 29033509 TI - Predictors of Impaired Reperfusion after Percutaneous Coronary Intervention in Patients with In-Hospital Acute Stent Thrombosis: A Retrospective Analyses of 5 Years of Data. AB - BACKGROUND: Acute stent thrombosis (STh) is a rare complication of percutaneous coronary intervention (PCI) and is associated with a high-risk of reperfusion failure. However, data focusing on risk factors of reperfusion failure in patients undergoing repeat PCI for treatment of STh remains inadequate. METHODS: A total of 8815 patients who underwent PCI with stent implantation from January 2009 to December 2013 were retrospectively reviewed. Among those cases, patients that presented with acute STh and underwent a repeat PCI for acute STh were identified. RESULTS: There were 108 patients who underwent repeat PCI for the treatment of in-hospital acute STh that were retrospectively analyzed. Of these study subjects, 21 (25%) had thrombolysis in myocardial infarction (TIMI) flow < 3 after repeat PCI. The median value of pain-to-balloon time was 40 minutes in the TIMI < 3 group, 35 minutes in the TIMI = 3 group (p < 0.001), and the first PCI-to-stent thrombosis time was also longer in the TIMI < 3 group (10 hours vs. 2.5 hours, p = 0.001). When patients were evaluated according to PCI time, the percentage of patients with TIMI < 3 was significantly higher in the night period compared to the daytime period (46.4% vs. 17.5 %, p = 0.002). In the multivariable logistic regression analysis, stent length [odds ratio (OR) = 1.18, 95% confidence interval (CI) 1.008-1.38] and pain-to- balloon time (OR = 1.28, 95% CI, 1.06-1.54) were the only independent predictors of failed reperfusion. CONCLUSIONS: Baseline stent length and pain-to-balloon time were associated with reperfusion failure in PCI for STh. Moreover, TIMI flow grade showed a circadian variation. PMID- 29033510 TI - Admission Value of Serum Cathepsin D Level Can be Useful for Predicting In Hospital Mortality in Patients with NSTEMI. AB - BACKGROUND: We aimed to investigate the association of serum cathepsin D levels with in-hospital mortality and Syntax scores (SXscore) in non-ST elevation myocardial infarction (NSTEMI) patients. METHODS: A total of 88 patients were included in the study. The patients were divided into two groups: those with in hospital mortality (-), and those with in-hospital mortality (+). The receiver operating characteristics curve was used to show the sensitivity and specificity of serum cathepsin D levels, and the optimal cut-off value for predicting in hospital mortality and high SXscore. RESULTS: Patients with (+) in-hospital mortality and high SXscore had lower serum cathepsin D levels compared to the patients with (-) in-hospital mortality and low SXscore. Using a cutoff score of < 16 for the cathepsin D level, in-hospital mortality was predicted with a sensitivity and specificity of 73.4% and 77.6%, respectively, and also predicted high SXscore with a sensitivity and specificity of 72.4% and 67.6%, respectively. CONCLUSIONS: Serum cathepsin D levels established upon admission were significantly and independently lower in NSTEMI patients with high rate of mortality, high SXscores, and low left ventricular ejection fraction. PMID- 29033511 TI - Changes of Atrial Natriuretic Peptides after Defibrillation Threshold Testing Predicted Future Ventricular Arrhythmia Event. AB - BACKGROUND: We investigated the change of natriuretic peptides during defibrillation threshold (DFT) testing and its relationship with future ventricular arrhythmia (VA) events in patients implanted with an implantable cardioverter defibrillator (ICD). METHODS: Atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), and c-type natriuretic peptide (CNP) were measured in 21 patients (mean age 61 +/- 13 years; 67% male) undergoing ICD implantation. Blood samples of the patients were drawn at pre-implantation, 30 minutes, 60 minutes, and 24 hours after DFT testing. The patients were followed and divided into two groups according to the occurrence of VA in 18 months. The biomarker levels and their changes were compared in patients with and without further VA. RESULTS: The pre-implantation ANP levels were higher at pre implantation and increased significantly at 30 minutes after DFT testing (Delta30minANP) among patients with VA events. The BNP and CNP levels did not change significantly after DFT testing in both groups. The area under curve was 0.82 for the change in Delta30minANP determining further ventricular events. The optimal Delta30minANP cutoff value was 0.51 pg/ml, with sensitivity of 0.83 and specificity of 0.68. Multivariable analysis confirmed that patients with Delta30minANP more than 0.51 pg/ml have a higher risk of further ventricular events (hazard ratio 39.8, 95% confidence interval: 2.87-553.01, p = 0.006). The pre-implantation ANP level could not predict future VA events (hazard ratio 1.06, 95% CI: 1.00-1.14, p = 0.06). CONCLUSIONS: The increase of ANP concentration after DFT testing predicted future VA events after ICD implantation while the BNP and CNP levels did not predict future VA events. PMID- 29033512 TI - Heart Rate Recovery as a Novel Test for Predicting Cardiac Involvement in Beta Thalassemia Major. AB - BACKGROUND: Abnormal heart rate recovery (HRR) is predictive of cardiac mortality. Autonomic abnormalities in beta-thalassemia major (TM) patients have been reported in previous studies. However, the importance of low HRR in exercise stress test in TM patients has not yet been ascertained. Therefore, this study will be the first of its kind in the literature. METHODS: Exercise stress test was performed on 56 TM patients who were being treated at the Thalassemia Center of our hospital, along with 46 non-TM iron deficiency anemia (IDA) patients as a control group. Values for HHR were recorded at 1, 2, 3, 4 and 5 min, and HRR was calculated by the difference of heart rate at peak exercise and at a specific time interval following the onset of recovery. RESULTS: All HRR values were found to be lower in TM patients compared to those in the IDA group. Exercise capacity [metabolic equivalents (METs)] was also found to be low in these patients (p < 0.001) as well. Total exercise time was significantly lower in the TM group compared to the IDA group (8.40 +/- 1.7 min vs. 11.17 +/- 1.51 min, p < 0.001). Exercise capacity (METs) was also lower in the TM group compared to the IDA group. Mean T2* value was 28.3 +/- 13.7 ms in TM patients on magnetic resonance imaging (MRI). In addition, there are 18 TM patients with T2* value was < 20 ms. CONCLUSIONS: This study found that TM was independently associated with low HRR. Such a condition is an indicator of autonomic dysfunction in TM patients, since abnormal HRR is related to impaired autonomic response. In addition, impaired HRR may be a marker of early cardiac involvement in patients, whose T2* value is high on MRI. Modifying HRR with a cardiac rehabilitation program in TM patients with impaired HRR is a field open for further investigation. PMID- 29033513 TI - The Endothelial Nitric Oxide Synthase (NOS3-786T>C) Genetic Polymorphism in Chronic Heart Failure: Effects of Mutant -786C allele on Long-term Mortality. AB - BACKGROUND: Nitric oxide plays an important role in the regulation of basal vascular tone and cardiac myocyte function. We investigated the NOS3-786T>C polymorphism in chronic heart failure (CHF) and its effects on long-term mortality. METHODS: Ninety-one patients with CHF who were referred to the Department of Cardiology of Siyami Ersek Cardiovascular and Thoracic Surgery Center for cardiopulmonary exercise testing between April 2001 and January 2004 and 30 controls were enrolled in this study. Patient were followed prospectively for a period of 1 to 12 years. RESULTS: Patients and controls were divided into three groups: TT, TC and CC, according to their NOS3-786T>C polymorphism. We noted that there was no significant difference in the genotype distribution between patients and controls. There was also no significant difference in endothelial nitric oxide synthase (eNOS) gene polymorphism between ischemic HF and nonischemic HF. During the follow-up period, 61 (67%) deaths occurred. The nonsurvivor group had lower left ventricular ejection fraction (LVEF) (p = 0.01), reduced peak oxygen consumption (p = 0.04) and were of older age (p = 0.001). Age, LVEF, peak oxygen consumption and genotype were found to be predictors of mortality (p < 0.05). Additionally, mortality was significantly increased in 786CC genotype patients compared to TT genotype patients (hazard ratio = 2.2; p = 0.03). By multivariate analysis, age and eNOS genotype were determined to be significant independent predictors of death. Additionally, Kaplan-Meier analysis confirmed that homozygote -786C genotype was associated with an increased risk of death (chi2 = 4.6, p = 0.03). CONCLUSIONS: Our findings showed that the NOS3 786T>C polymorphism was associated with an increased risk of mortality in patients with CHF. PMID- 29033514 TI - The Association between CHA2DS2-VASc Score and Mortality in Patients with Heart Failure with Reduced Ejection Fraction. AB - BACKGROUND: Heart failure (HF) is associated with significant mortality and morbidity. Therefore, identifying high-risk patients may optimize treatment for HF patients and reduce adverse events. The aim of this study was to assess the role of the CHA2DS2-VASc score to predict mortality in patients with reduced left ventricular ejection fraction (LVEF). METHODS: A total of 106 patients with reduced LVEF were enrolled in this study. All patients completed a one-year follow-up, and a CHA2DS2-VASc score was calculated for each patient. RESULTS: Twenty-one patients (19.8%) died during the 1-year follow-up. We found that baseline functional status, CHA2DS2-VASc score, brain natriuretic peptide, blood urea and hemoglobin levels were associated with mortality. In the multivariate analysis, CHA2DS2-VASc score and functional capacity were the only predictors of 1-year mortality. CONCLUSIONS: Use of the CHA2DS2-VASc score appears to be feasible for risk stratification and mortality prediction in patients with reduced LVEF. PMID- 29033515 TI - CHA2DS2-VASc Score: A Simple But Not Appropriate Risk Score for Predicting Mortality Risk in Patients with Heart Failure. PMID- 29033516 TI - Primary Endovascular Intervention for Acute Mesenteric Ischemia Performed by Interventional Cardiologists - A Single Center Experience. AB - The current standard care for acute mesenteric ischemia (AMEI) involves urgent revascularization and resection of the necrotic bowel. Since 2012, we have used an AMEI protocol of our own design, which focused on early treatment and allowed interventional cardiologists to become involved when interventional radiologist was not available. A total of 8 patients were treated, and two interventional cardiologists performed all the stenting procedures. The procedure success rate was 100% in patients with non-calcified lesions (6/8). The 30-day survival rate was 100% in patients with angiographic success, and was 0% in patients with failed procedure. In two patients with total occlusion of the superior mesenteric artery, laparotomy was avoided when interventions were successful and completed within six hours of protocol activation. Four surviving patients were discharged after short intensive care unit stays (less than 48 hours); these patients returned to and remained at home throughout their 90-day follow-up. The overall procedure success rate and 30-day survival rate were both 75%. There was no access site or intervention-related complications. Using our protocol, we believe that primary endovascular treatment for AMEI is feasible. In geographic regions where healthcare resources are lacking, a time-efficient strategy adopted by interventional cardiologists should be considered for the purpose of saving lives and possibly even avoiding open laparotomy. PMID- 29033517 TI - ALCAPA Syndrome and Atrial Septal Defect In a 68-Year-Old Woman: An Extremely Rare Congenital Association. AB - Anomalous left coronary artery arising from the pulmonary artery (ALCAPA) has been generally reported as an isolated lesion that is also called Bland-White Garland syndrome. Herein we report a case of ALCAPA syndrome with an atrial septal defect in a 68-year-old woman. She had been asymptomatic until the age of 68. Echocardiographic examination revealed atrial septal defect, and coronary angiography showed that the left main coronary artery originated from the pulmonary artery and intensive collateral connections between the right and left coronary artery. In this case, it would appear that ALCAPA is associated with atrial septal defect. PMID- 29033518 TI - A Rare Experience of Infective Residual Sheath in the Wall of the Innominate Vein after Extraction of Implantable-Defibrillators. AB - BACKGROUND: Cardiac device-related infective endocarditis is an uncommon but potentially fatal complication. Therefore, cardiac devices should be removed as soon as a device-related infection is suspected. CASE REPORT: A 56-year-old male with a history of arrhythmogenic right ventricular dysplasia with implantable cardioverter-defibrillators (ICDs) 7 years earlier and re-implantation of ICDs due to dysfunction 18 months ago presented with erosion of the ICD pocket with Pseudomonas bacteremia. For the past year, only multiple wound debridements were performed. Accordingly, we performed debridement and removal of the generator during this admission; however, bacteremia still persisted. Using transesophageal echocardiography, we detected vegetation on the pacing leads and tricuspid valve in the right atrium. We performed thoracotomy with tricuspid valve repair and pacing wire removal. However, anterior chest pain and refractory bacteremia occurred 3 months later after discharge, and an infectious foreign body in the wall of the innominate vein was detected using chest computer tomography. Thoracotomy was again performed for resection of the innominate vein with the infection source. Postoperative recovery was good, with no systemic infection or bacteremia. CONCLUSIONS: Pacing lead extraction is a common procedure following cardiac rhythm management device-related infection. However, residual foreign body-related bacteremia should be suspected in cases with fever of unknown origin after primary surgery. Preserving the innominate vein with patch repair is a feasible option. However, a postoperative 4-week course of antibiotics is recommended. PMID- 29033519 TI - End-QRS Notching and Slurring in the Definition of Early Repolarization. PMID- 29033520 TI - Author Reply to Letter to the Editor: Silent and Malignant Early Repolarization Syndrome Mimicking Hyper-Acute ST Elevation Myocardial Infarction. PMID- 29033521 TI - Reliability of rubrics in the assessment of orthodontic oral presentation. AB - AIMS: The aim of this study was to evaluate the reliability of using rubrics in dental education, specifically for undergraduate students' assessment in orthodontic oral presentation. METHODS: A rubric-based case presentation assessment form was introduced to three contributing instructors. In each instructor's group, the course director, along with the assigned instructor, assessed 8 randomly selected fourth year male dental students utilizing the same assessment form (total of 24 students). The two final scorings made by the assigned instructor and the course director were then gathered for each student. The data of this prospective comparative study then was analyzed using paired t test to look for any significant differences in the scoring of the course director and each instructor in each group. RESULTS: No significant statistical differences were detected in grading variables between the instructors and the course director. Furthermore, the data showed no significant correlations between the students' final course grade, and their case presentation grades scored by instructors'/course director. CONCLUSION: Despite the elaborate nature of the routine orthodontic case presentation, the use of rubrics was found to be a promising reliable assessment element. PMID- 29033523 TI - Mothers' teething beliefs and treatment practices in Mansoura, Egypt. AB - OBJECTIVES: To reveal mothers' beliefs about signs and symptoms associated with teething and their treatment practices. POPULATION AND METHODS: A cross-sectional study done in Mansoura District on 457 mothers and their children with one or more erupted teeth. Mothers were interviewed during vaccination session at 25 chosen health facilities. Mothers were asked whether they agree or disagree about 24 signs and symptoms claimed to be associated with teething. RESULTS: Only 1.8% reported no symptoms at the time of teething. Majority had correct knowledge related to bite fingers/objects (70.5%) and drooling (60.0%). Inaccurate knowledge was reported as gum rubbing (42.0%), gum swelling (47.0%), diarrhea (51.0%), fever (83.2%) and weight loss (46.0%). Only 16.8% of mothers have good knowledge about teething problems. Logistic regression analysis revealed that the independent predictors of good knowledge are higher education (AOR = 3.7), urban residence (AOR = 2.5) and having a first-born child (AOR = 5.5). Only 13.4% of mothers did not give any treatment for teething problems. Antipyretics and antibiotics were the most frequently given treatments (71.3%, and 24.3%; respectively). CONCLUSIONS: The majorities of mothers had low knowledge about teething problems and gave unnecessary treatments. PMID- 29033522 TI - Mandibular alveolar bone volume in patients with different vertical facial dimensions. AB - OBJECTIVE: To evaluate if there is any difference in alveolar bone surface area in patients with high vertical facial dimension (long face), average vertical facial dimension (average face), and low vertical facial dimension (square short face). MATERIALS AND METHODS: Forty-five patients who had cone beam computed tomography (CBCT) as part of their orthodontic records were chosen according to their facial vertical dimension. Each group consisted of fifteen patients. Mandibular alveolar bone volume was calculated using Dolphin 3D Imaging software as the total surface area of the symphysis at the level of lower right canine to lower left canine and total surface areas for each patient was considered as total bone volume. Comparison was performed between groups using t-test. RESULTS: Long face type patients showed higher bone volume (total surface area 3220 +/- 368 mm2), average face patients have average bone volume (total surface area 2059 +/- 620 mm2) while square short face patients have the lowest total bone volume (total surface area 1877 +/- 112 mm2). There was a significant difference between long face and square short face groups (P < 0.005) however, there was no significant difference between long face and average face groups. CONCLUSIONS: Patients with long face type have higher mandibular alveolar bone volume compared to short facial type patients. PMID- 29033525 TI - Oral health comprehension in parents of Saudi cerebral palsy children. AB - OBJECTIVE: To determine oral health comprehension among parents of cerebral palsy (CP) children. METHODS: A self-administered questionnaire was utilized to obtain the required information. The study was conducted in two main centers for disabled children in Riyadh, Saudi Arabia. RESULTS: Parents of all 157 CP children registered in the two centers completed the questionnaire. Mothers mostly (86.6%) completed the questionnaire. Majority (98.7%) of the parents knew the importance of dental health for general health. More than two-third (70%) of the parents thought that teeth should be brushed thrice daily or after each meal. About three in every ten (29.9%) parents were not aware of the beneficial effect of fluoride in preventing dental caries; and very few (9.6%) were aware of water as a source of fluoride. Almost all (98.7%) the parents knew that sugary foods caused dental caries. Three-fourth (75.8%) of the parents were not aware of the possible harmful effects of bottled juices on teeth. There were no significant (p > 0.05) associations between the parental age/gender with any of the dependent variables. CONCLUSION: Parents of CP children generally showed satisfactory oral health comprehension. However, they need further oral health education in several areas. PMID- 29033524 TI - Influence of platelet rich fibrin on post-extraction socket healing: A clinical and radiographic study. AB - AIM: The aim of this study was to evaluate clinically and radiographically, extraction socket healing using autologous platelet rich fibrin (PRF). MATERIALS AND METHODS: Twenty-four subjects needing single tooth simple extractions were selected. Twenty-four extraction sockets were divided into test group (PRF, n = 12) and control group (blood clot, n = 12). PRF was prepared with blood drawn from individuals after extraction using standard technique. PRF was placed in test group sockets followed by pressure application and figure 8 sutures. Sockets in control group were allowed to heal in the presence of blood clot and received a figure 8 suture. Ridge width was assessed using cast analysis with the help of acrylic stent and a pair of calipers. Radiographic analysis of socket surface area was performed using computer graphic software program. The clinical follow up assessments were performed at 1, 4 and 8 weeks. Collected data was assessed using ANOVA and multiple comparisons test. RESULTS: Subjects were aged between 25 and 50 (mean 37.8) years, including 15 females. The mean horizontal ridge width for sockets in the test group were 11.70 +/- 2.37 mm, 11.33 +/- 2.30 mm and 10.97 +/- 2.33 mm at 1, 4 and 8 weeks respectively. Ridge width proportions were significantly higher among test group as compared to control group between baseline to 4 and 8 weeks respectively. The mean radiographic bone fill (RBF) percentage in the test group, was 74.05 +/- 1.66%, 81.54 +/- 3.33% and 88.81 +/- 1.53% at 1, 4 and 8 weeks respectively. The mean RBF was significantly higher in the test group than control group at all time intervals. CONCLUSION: The study outcomes demonstrate that the use of PRF accelerate socket wound healing after tooth extraction as noticed by increased bone fill and reduced alveolar bone width resorption using clinical and radiographic methods. PMID- 29033526 TI - Complexity of comprehensive care treatments in undergraduate dental programs: The benefits of observing and assisting experienced faculty members. AB - OBJECTIVE: To improve the confidence of the final year dental students in completing occlusal and oral rehabilitation of patients, with complexities beyond their scope, based on full analysis of the biomechanical and esthetic considerations of each case. MATERIAL & METHODS: Two comprehensive patient situations presenting with special difficulties including extensive, reduced vertical dimension of occlusion, limited interocclusal space and maxillary alveolar bone for implant insertion necessitating bone augmentation and a sinus lift surgery was managed by two students at our institute. Procedures like surgical crown lengthening, sinus lifting, and bone augmentation were performed by senior faculty with the respective two students' assisting as well as following up at the healing phase and reporting progress of healing and any possible complications to the supervisor. Students' reported significant improvement in decision making skills; time management; interpersonal skills, management of cases in an evidence -based interdisciplinary approach as well as increase in their confidence in managing complex cases independently. Follow up with both cases showed optimum outcome and patients' satisfaction. RESULTS: Students' reported significant improvement in decision making skills; time management; interpersonal skills, management of cases in an evidence -based interdisciplinary approach as well as increase in their confidence in managing complex cases independently. Follow up with both cases showed optimum outcome and patients' satisfaction. CONCLUSIONS: Exposing students to manage complex oral rehabilitation including procedures like sinus lifting and bone augmentation, through an evidence-based interdisciplinary approach during the undergraduate comprehensive clinical dentistry course enhances their confidence and clinical acumen as an independent practitioner. PMID- 29033527 TI - Dental students' perceptions of an online learning. AB - OBJECTIVES: To identify the readiness of students for online learning, to investigate their preference and perception, and to measure the quality of online tutorials. MATERIALS AND METHODS: A 14-statement questionnaire was administered to fourth year undergraduate dental students in male campus at King Saud University who completed preclinical orthodontic course. The students responded to each statement by using Likert scale. RESULTS: The results reveal a high agreement of students (27.8-31.5% agree and 38.9-50% strongly agree) on a possession of necessary computer skills and access to internet. 59.2% and 64.8% of the students replied that online flash lectures and procedural videos were helpful to their learning, respectively. With respect to students' learning preferences, few students preferred online flash lectures (31.5%) and procedural videos (17.1%). Most students (38.9% agree and 31.5% strongly agree) preferred a combination of traditional teaching methods and online learning. CONCLUSION: Overall, student attitudes were positive regarding online learning. The students viewed online learning helpful as a supplement to their learning rather than a replacement for traditional teaching methods. PMID- 29033528 TI - In vitro performance of DIAGNOdent laser fluorescence device for dental calculus detection on human tooth root surfaces. AB - OBJECTIVE: This study assessed the reproducibility of a red diode laser device, and its capability to detect dental calculus in vitro on human tooth root surfaces. MATERIAL AND METHODS: On each of 50 extracted teeth, a calculus positive and calculus-free root surface was evaluated by two independent examiners with a low-power indium gallium arsenide phosphide diode laser (DIAGNOdent) fitted with a periodontal probe-like sapphire tip and emitting visible red light at 655 nm wavelength. Laser autofluorescence intensity readings of examined root surfaces were scored on a 0-99 scale, with duplicate assessments performed using the laser probe tip directed both perpendicular and parallel to evaluated tooth root surfaces. Pearson correlation coefficients of untransformed measurements, and kappa analysis of data dichotomized with a >40 autofluorescence intensity threshold, were calculated to assess intra- and inter-examiner reproducibility of the laser device. Mean autofluorescence intensity scores of calculus-positive and calculus-free root surfaces were evaluated with the Student's t-test. RESULTS: Excellent intra- and inter-examiner reproducibility was found for DIAGNOdent laser autofluorescence intensity measurements, with Pearson correlation coefficients above 94%, and kappa values ranging between 0.96 and 1.0, for duplicate readings taken with both laser probe tip orientations. Significantly higher autofluorescence intensity values were measured when the laser probe tip was directed perpendicular, rather than parallel, to tooth root surfaces. However, calculus-positive roots, particularly with calculus in markedly-raised ledges, yielded significantly greater mean DIAGNOdent laser autofluorescence intensity scores than calculus-free surfaces, regardless of probe tip orientation. DIAGNOdent autofluorescence intensity values >40 exhibited a stronger association with calculus (36.6 odds ratio) then measurements of >=5 (20.1 odds ratio) when the laser probe tip was advanced parallel to root surfaces. CONCLUSIONS: Excellent intra- and inter-examiner reproducibility of autofluorescence intensity measurements was obtained with the DIAGNOdent laser fluorescence device on human tooth roots. Calculus-positive root surfaces exhibited significantly greater DIAGNOdent laser autofluorescence than calculus free tooth roots, even with the laser probe tip directed parallel to root surfaces. These findings provide further in vitro validation of the potential utility of a DIAGNOdent laser fluorescence device for identifying dental calculus on human tooth root surfaces. PMID- 29033529 TI - Fracture resistance of different primary anterior esthetic crowns. AB - PURPOSE: Investigate and compare fracture resistance of four commercially available esthetic crowns. METHODS: Sixty-four anterior crowns were used: NuSmile Primary crowns (NuSmile, Houston, Tex. USA) (16); Preveneered Cheng Crowns, (Orthodontic Technologies Inc., Houston, TX) (16); NuSmile ZR (NuSmile, Houston, Tex. USA); and Cheng Crowns zirconia (Orthodontic Technologies Inc., Houston, TX). Crowns were mounted and cemented on a negative replica and placed under servo hydraulic mechanical universal testing machine. Force was applied at 90 degrees with crosshead speed of 1 mm/min until they fractured. Maximum breaking loads were recorded. Data was then analyzed using software that measured the fracture resistance of the crowns. One-way Analysis of Variance (ANOVA) was used to find the differences between the groups and Scheffe post hoc test was used for intergroup comparisons. The level of significance was set as p <= 0.05. RESULTS: Mean maximum loads were as follows: NuSmile ZR crowns (937.36 + 131.68 N), Cheng Zirconia Crowns (751.43 + 102.103 N), NuSmile Primary crowns (482.37 + 76.92), and Preveneered Cheng Crowns (415.57 + 12.28). Zirconia crowns the had highest fracture resistance compared to preveneered crowns (p < 0.05). No significant difference between NuSmile ZR Zirconia and Cheng Crowns zirconia nor between NuSmile primary Preveenered and Preveneered Cheng Crowns. CONCLUSION: Zirconia crowns showed the highest fracture resistance with NuSmile zirconia crowns to being able to resist fracture even under intense pressure of load compared to Cheng Crowns zirconia. PMID- 29033530 TI - Orthodontic management of a dilacerated central incisor and partially impacted canine with unilateral extraction - A case report. AB - AIM: To align a dilacerated maxillary central incisor and partially impacted canine with unilateral extraction in a young patient with skeletal deep bite. MATERIALS AND METHODS: A 14 year old male patient reported to the hospital with skeletal deep bite (basal plane angle-17 degrees ), severe horizontal pattern of growth (Go-Gn to Sn -22 degrees ), upright maxillary incisors (U1 to NA -26 degrees ) and retroclined lower incisors (L1 to NB -11 degrees ). The maxillary left central incisor was dilacerated, and the maxillary left canine was partially impacted. Unilateral extraction of the left maxillary premolar and left mandibular central incisor was done. A canine disimpaction spring was used to align the impacted canine. An anterior bite plane was given to open the bite. RESULTS: Superimposition of lateral cephalogram (T1, T2) revealed bite opening, normal overjet and overbite. There was backward rotation of the mandible and increase in lower anterior facial height. There was no evidence of root resorption or loss of vitality in the dilacerated tooth. Clinically the canine was well aligned in the arch. CONCLUSION: Orthodontic management of a dilacerated incisor can be done without root resorption or loss of vitality. The partially impacted canine was well aligned in the arch. Unilateral extraction can produce good treatment results. PMID- 29033531 TI - Primal-dual interior point QP-free algorithm for nonlinear constrained optimization. AB - In this paper, a class of nonlinear constrained optimization problems with both inequality and equality constraints is discussed. Based on a simple and effective penalty parameter and the idea of primal-dual interior point methods, a QP-free algorithm for solving the discussed problems is presented. At each iteration, the algorithm needs to solve two or three reduced systems of linear equations with a common coefficient matrix, where a slightly new working set technique for judging the active set is used to construct the coefficient matrix, and the positive definiteness restriction on the Lagrangian Hessian estimate is relaxed. Under reasonable conditions, the proposed algorithm is globally and superlinearly convergent. During the numerical experiments, by modifying the technique in Section 5 of (SIAM J. Optim. 14(1): 173-199, 2003), we introduce a slightly new computation measure for the Lagrangian Hessian estimate based on second order derivative information, which can satisfy the associated assumptions. Then, the proposed algorithm is tested and compared on 59 typical test problems, which shows that the proposed algorithm is promising. PMID- 29033532 TI - Seeing Is Believing: Using Video Feedback in Cognitive Therapy for Social Anxiety Disorder. AB - Distorted negative self-images and impressions appear to play a key role in maintaining Social Anxiety Disorder (SAD). In previous research, McManus et al. (2009) found that video feedback can help people undergoing cognitive therapy for SAD (CT-SAD) to develop a more realistic impression of how they appear to others, and this was associated with significant improvement in their social anxiety. In this paper we first present new data from 47 patients that confirms the value of video feedback. Ninety-eighty percent of the patients indicated that they came across more favorably than they had predicted after viewing a video of their social interactions. Significant reductions in social anxiety were observed during the following week and these reductions were larger than those observed after control periods. Comparison with our earlier data (McManus et al., 2009) suggests we may have improved the effectiveness of video feedback by refining and developing our procedures over time. The second part of the paper outlines our current strategies for maximizing the impact of video feedback. The strategies have evolved in order to help patients with SAD overcome a range of processing biases that could otherwise make it difficult for them to spot discrepancies between their negative self-imagery and the way they appear on video. PMID- 29033533 TI - The Utility of a Connecting Framework to Facilitate Understanding of and Reduce the Disparities in Hospice Care Experienced by Racial and Ethnic Minorities. AB - Rapidly changing demographics in the United States and diverse cultural beliefs impact hospice utilization and end-of-life care. Healthcare professionals and clinicians need a connecting framework to understand patients' and their family's perspectives regarding utilization of those services. This framework will assist healthcare workers in providing culturally sensitive and appropriate information to patients nearing the end of life, so that they and their loved ones can make informed decisions for optimal care during this passage of life. Considering the variables in this framework may also help facilitate communication between healthcare professionals and patients and reduce misunderstanding among the surviving family members. PMID- 29033534 TI - Multicellular tumor spheroids of human uveal melanoma induce genes associated with anoikis resistance, lipogenesis, and SSXs. AB - PURPOSE: Uveal melanoma (UM) has a high propensity for metastatic spread, and approximately 40-50% of patients die of metastatic disease. Metastases can be found at the time of diagnosis but also several years after the tumor has been removed. The survival of disseminated cancer cells is known to be linked to anchorage independence, anoikis resistance, and an adaptive cellular metabolism. The cultivation of cancer cells as multicellular tumor spheroids (MCTS) by anchorage-independent growth enriches for a more aggressive phenotype. The present study examines the differential gene expression of adherent cell cultures, non-adherent MCTS cultures, and uncultured tumor biopsies from three patients with UM. We elucidate the biochemical differences between the culture conditions to find whether the culture of UM as non-adherent MCTS could be linked to an anchorage-independent and more aggressive phenotype, thus unravelling potential targets for treatment of UM dissemination. METHODS: The various culture conditions were evaluated with microarray analysis, quantitative reverse transcription polymerase chain reaction (qRT-PCR), RNAscope, immunohistochemistry (IHC), and transmission electron microscopy (TEM) followed by gene expression bioinformatics. RESULTS: The MCTS cultures displayed traits associated with anoikis resistance demonstrated by ANGPTL4 upregulation, and a shift toward a lipogenic profile by upregulation of ACOT1 (lipid metabolism), FADS1 (biosynthesis of unsaturated fatty acids), SC4MOL, DHCR7, LSS (cholesterol biosynthesis), OSBPL9 (intracellular lipid receptor), and PLIN2 (lipid storage). Additionally, the present study shows marked upregulation of synovial sarcoma X breakpoint proteins (SSXs), transcriptional repressors related to the Polycomb group (PcG) proteins that modulate epigenetic silencing of genes. CONCLUSIONS: The MCTS cultures displayed traits associated with anoikis resistance, a metabolic shift toward a lipogenic profile, and upregulation of SSXs, related to the PcG proteins. PMID- 29033535 TI - Differential association of elevated inflammatory cytokines with postoperative fibrous proliferation and neovascularization after unsuccessful vitrectomy in eyes with proliferative diabetic retinopathy. AB - BACKGROUND: Pars plana vitrectomy is the only treatment for advanced proliferative diabetic retinopathy (PDR). However, vitrectomy is not always successful despite current progress in vitreoretinal surgical techniques. The aim of our study was to investigate whether the vitreal concentrations of MCP-1, IL 6, IL-8, and VEGF are elevated after unsuccessful vitrectomy in patients with PDR and to investigate whether the altered levels of these cytokines are associated with the cause for the reoperation. PATIENTS AND METHODS: Vitreous samples were collected from 263 eyes of 233 patients: PDR (n=129 eyes), proliferative vitreoretinopathy (PVR; n=24 eyes) and nondiabetic controls (n=110 eyes) prior to vitrectomy. Vitreous samples were also collected from 14 eyes of 14 patients with PDR before vitrectomy and from the same 14 eyes before a second vitrectomy for reoperation. The levels of MCP-1, IL-6, IL-8, and VEGF were measured by flow cytometry using a cytometric bead array (CBA) assay. RESULTS: The mean concentrations of vitreal MCP-1, IL-6, IL-8, and VEGF were significantly higher in patients with PDR and PVR (P<0.01). There were significantly high correlations among the concentrations of MCP-1, IL-6, and IL-8, whereas the correlation of VEGF with the other 3 cytokines was lower. Among the 14 patients who required reoperation, the mean vitreal concentrations of MCP-1, IL-6, and IL-8 were higher than that at the time of the initial vitrectomy (P<0.01). At the time of the reoperation vitrectomy, the mean vitreous level of MCP-1, IL-6, and IL-8 in eyes with fibrous proliferation was higher than in those without fibrous proliferation (P<0.05). In contrast, VEGF in eyes with neovascular glaucoma (NVG) or anterior hyaloidal fibrovascular proliferation (AHFVP) was higher than in the eyes without NVG and AHFVP (P<0.05). CONCLUSION: The elevated levels of MCP-1, IL-6, and IL-8 may be the cause of the postoperative fibrous proliferation. In contrast, VEGF may be the cause of the neovascularization after unsuccessful vitrectomy in the eyes of PDR patients. PMID- 29033537 TI - Quantifying metamorphopsia with M-CHARTS in patients with idiopathic macular hole. AB - PURPOSE: The purpose of this study was to determine the degree of metamorphopsia using M-CHARTSTM in patients with idiopathic macular hole before and after pars plana vitrectomy and internal limiting membrane (ILM) peeling. PATIENTS AND METHODS: The records of 22 eyes of 22 patients with a full-thickness macular hole who underwent pars plana vitrectomy and ILM peeling were reviewed. All patients underwent a complete ophthalmic examination including spectral-domain optical coherence tomography (OCT). Horizontal metamorphopsia (MH) and vertical metamorphopsia (MV) scores were determined using M-CHARTS at the same time. The time course of changes in metamorphopsia and the relationship between best corrected visual acuity (BCVA) and OCT parameters were assessed. RESULTS: Sealing of the macular hole was noted in all eyes after surgery. BCVA improved significantly from 1 month after surgery (P<0.001). The MV score was significantly higher than the MH score before surgery (P<0.05) and improved significantly from 1 month after surgery (P<0.03). The MH score improved significantly at 6 months after surgery (P<0.001). The postoperative MV and MH scores became closer to one another from 1 month after surgery. Moreover, the MV score was higher than the MH score at all postoperative assessments. There was a significant correlation between the MV and MH scores at all follow-up assessments. There was no significant correlation between BCVA and the MV or MH score at any follow-up assessment. CONCLUSION: The satisfaction of the patients with macular hole after surgery cannot be necessarily measured by BCVA alone, because M-scores were not correlated to BCVA in postoperative evaluation. Therefore, evaluation of the MV and MH scores can be an independent treatment outcome in addition to BCVA. PMID- 29033538 TI - Comparison of a hydrogel corneal inlay and monovision laser in situ keratomileusis in presbyopic patients: focus on visual performance and optical quality. AB - PURPOSE: To compare the visual performance and optical quality after Raindrop Near Vision Inlay implantation or monovision LASIK for the correction of presbyopia. MATERIALS AND METHODS: In this retrospective case-series study, patients previously treated in the nondominant eye with monovision LASIK were compared with patients previously implanted with Raindrop Near Vision Inlay. The study enrolled 16 inlay and 15 monovision LASIK patients. Uncorrected near visual acuity, uncorrected distance visual acuity, binocular stereopsis, patient satisfaction, and patient task performance were assessed. RESULTS: Postoperatively, the mean spherical equivalent was -0.66 D (0.78 SD) for the inlay group and -1.03 D (0.56 SD) for the monovision LASIK group. Monocularly, at uncorrected near distances, 60% of inlay patients and 47% of monovision LASIK patients achieved >=20/20. Monocularly, at uncorrected far distances, 75% of inlay patients and 40% of monovision LASIK patients achieved >=20/32 vision. Binocularly, at near distances, 79% of inlay patients and 53% of monovision LASIK patients obtained >=20/20 vision. All patients achieved >=20/20 binocularly for distance. On average, inlay patients obtained 98 seconds of arc and monovision LASIK patients obtained 286 seconds of arc for stereopsis. Most (79%) of the inlay patients and 66% of monovision LASIK patients were satisfied with their near vision, while 86% of inlay patients and 67% of monovision LASIK patients were satisfied with their distance vision. CONCLUSION: Patients receiving corneal inlays demonstrated better near and distance visual acuities, binocular stereopsis, task performance, and satisfaction, when compared to patients treated with monovision LASIK. PMID- 29033536 TI - Spotlight on reticular pseudodrusen. AB - Age-related macular degeneration (AMD) is a leading cause of vision loss in patients >50 years old. The hallmark of the disease is represented by the accumulation of extracellular material between retinal pigment epithelium and the inner collagenous layer of Bruch's membrane, called drusen. Although identified almost 30 years ago, reticular pseudodrusen (RPD) have been recently recognized as a distinctive phenotype. Unlike drusen, they are located in the subretinal space. RPD are strongly associated with late AMD, especially geographic atrophy, type 2 and 3 choroidal neovascularization, which, in turn, are less common in typical AMD. RPD identification is not straightforward at fundus examination, and their identification should employ at least 2 different imaging modalities. In this narrative review, we embrace all aspects of RPD, including history, epidemiology, histology, imaging, functional test, natural history and therapy. PMID- 29033539 TI - Possible association between subtypes of dry eye disease and seasonal variation. AB - PURPOSE: The purpose of this study was to evaluate the influence of seasons on the signs and symptoms of dry eye disease (DED). METHODS: This is a cross sectional, case-control study, and participants were non-DED subjects (n=1,916, mean age 54.4+/-14.4 years) and DED patients (n=684, 54.2+/-12.1 years) visiting six eye clinics at various practices and locations in Japan. We evaluated the signs and symptoms of DED and the seasons with the most severe results were compared to those with the least severe results in both groups. Main outcome measures were differences in the severity of the signs and symptoms of DED between the most and least severe seasons. RESULTS: The majority of DED symptoms were most severe during spring and least severe in summer. Significant differences between these two seasons were found for irritation (P=0.001), pain (P=0.007), blurring (P=0.000), and photophobia (P=0.007) in the DED group. Superficial punctate keratopathy (P=0.001) and tear break-up time (BUT; P=0.000) results also indicated that DED was most severe in spring. In contrast, fewer patients had low Schirmer test results in spring, although this was not statistically significant (P=0.061). CONCLUSION: Our results demonstrated that the severity of DED is seasonal, which may explain the increase of short BUT-type DED cases observed in spring when air pollen counts are highest. PMID- 29033540 TI - Assay development and high-throughput screening for small molecule inhibitors of a Vibrio cholerae stress response pathway. AB - Antibiotics are important adjuncts to oral rehydration therapy in cholera disease management. However, due to the rapid emergence of resistance to the antibiotics used to treat cholera, therapeutic options are becoming limited. Therefore, there is a critical need to develop additional therapeutics to aid in the treatment of cholera. Previous studies showed that the extracytoplasmic stress response (sigmaE) pathway of Vibrio cholerae is required for full virulence of the organism. The pathway is also required for bacterial growth in the presence of ethanol. Therefore, we exploited this ethanol sensitivity phenotype in order to develop a screen for inhibitors of the pathway, with the aim of also inhibiting virulence of the pathogen. Here we describe the optimization and implementation of our high-throughput screening strategy. From a primary screen of over 100,000 compounds, we have identified seven compounds that validated the growth phenotypes from the primary and counterscreens. These compounds have the potential to be developed into therapeutic agents for cholera and will also be valuable probes for uncovering basic molecular mechanisms of an important cause of diarrheal disease. PMID- 29033541 TI - Dexmedetomidine reduces the neuronal apoptosis related to cardiopulmonary bypass by inhibiting activation of the JAK2-STAT3 pathway. AB - Cardiopulmonary bypass (CPB) constitutes one of the primary methodologies pertaining to cardiac surgery. However, this form of surgery can cause damage to the body. Many studies have reported that dexmedetomidine confers cerebral protection. In this study, we aimed to investigate the effect and mechanism of dexmedetomidine on neuronal apoptosis caused by CPB. Here, rats were treated with different doses of dexmedetomidine by intravenous infusion 2 hours after CPB. We observed that dexmedetomidine treatment to rats reduces the S100beta, NSE levels in plasma, and neuronal apoptosis following CPB in a dose-dependent manner. Furthermore, we observed that the beneficial effect of dexmedetomidine treatment following CPB was associated with a reduction in IL6, an inflammatory cytokine in plasma and cortex. Our results suggest that dexmedetomidine provides neuroprotective effects by inhibiting inflammation and reducing neuronal apoptosis. There was a correlation between the protective effect on the brain and the dose of dexmedetomidine. In addition, dexmedetomidine administration inhibits phosphorylation of JAK2 and STAT3 proteins in the hippocampus of rats 2 hours after CPB. Therefore, we speculate that the JAK2-STAT3 pathway plays an important role in the neuroprotective effects of dexmedetomidine following brain injury induced by CPB. PMID- 29033543 TI - Effect of echinacoside on kidney fibrosis by inhibition of TGF-beta1/Smads signaling pathway in the db/db mice model of diabetic nephropathy. AB - Kidney fibrosis and renal tubular epithelial-to-mesenchymal transition (EMT) are the main pathological changes of diabetic nephropathy (DN), which eventually leads to end-stage renal disease. Previous studies have suggested that echinacoside (ECH) is antifibrotic in the liver. However, the effect of ECH on kidney fibrosis in DN and its mechanisms are unknown. This study was performed to explore the effect of ECH on kidney fibrosis and also the molecular mechanisms of ECH in a db/db mice model of DN. Our results showed that, relative to db/db mice, the mice in the ECH group had an improved general state and reduced blood glucose and 24-hour urinary protein levels. The deterioration of renal function was delayed due to treatment with ECH. We also observed that ECH can improve histopathological findings in the kidneys of db/db mice, including collagen deposition, mesangial cell and mesangial matrix hyperplasia, basement membrane thickening, and podocyte reduction. Moreover, ECH inhibited the TGF-beta1/Smads signaling pathway, downregulated fibronectin (FN), collagen IV, and alpha-smooth muscle actin (alpha-SMA) levels, and upregulated E-cadherin level in the db/db mice model of DN. Our findings indicate that ECH has a therapeutic effect on DN, including the inhibition of renal tubular EMT and kidney fibrosis. Furthermore, ECH inhibits kidney fibrosis through regulation of the TGF-beta1/Smads signaling pathway. PMID- 29033542 TI - Axitinib in the treatment of renal cell carcinoma: design, development, and place in therapy. AB - Since 2005, the approved first-line treatment of metastatic renal cell carcinoma consists in tyrosine kinase inhibitors (TKIs) targeting the vascular endothelial growth factor receptors (VEGFRs). Axitinib is an oral second-generation TKI and a potent VEGFR inhibitor with a half maximal inhibitory concentration for the VEGF family receptors 10-fold lower than other TKIs. Axitinib activity in renal cell carcinoma (RCC) patients has been studied in various settings and particularly as second-line treatment. In this setting, axitinib with clinically based dose escalation compared to sorafenib has demonstrated an improvement in progression free survival in a randomized Phase III trial leading to US Food and Drug Administration approval. In the first-line setting, axitinib failed to demonstrate improved efficacy over sorafenib, but the field of RCC treatment is rapidly changing with novel TKIs as cabozantinib or the emergence of check point inhibitors as nivolumab and the place of axitinib in therapy is therefore challenged. In this review, we focus on axitinib pharmacological and clinical properties in RCC patients and discuss its place in the treatment of patients with RCC. PMID- 29033544 TI - Eluxadoline in the treatment of diarrhea-predominant irritable bowel syndrome. AB - Eluxadoline is a novel drug approved for the management of diarrhea predominant irritable bowel syndrome (IBS-D). It has unique pharmacology and works on three different opioid receptors. Several Phase II and III clinical trials have demonstrated eluxadoline's efficacy in reducing symptoms related to IBS-D. Clinical trial results and postmarketing reports show a risk of pancreatitis in patients without a gallbladder or those abusing alcohol. This review article will include information on clinical trial results related to IBS-D management as well as eluxadoline's limitations. PMID- 29033545 TI - Downregulation of A20 increases the cytotoxicity of IFN-gamma in hepatocellular carcinoma cells. AB - Hepatocellular carcinoma (HCC) is a highly fatal disease mandating development of novel, effective therapeutic strategy. Interferon-gamma (IFN-gamma) is a pleiotropic cytokine with immunomodulatory, antiviral, and antitumor effects. Although IFN-gamma is a promising antitumor agent, its application is limited by resistance in tumor cells. A20 is a zinc-finger protein that was initially identified as a gene product induced by tumor necrosis factor alpha in human umbilical vein endothelial cells. In this study, we found that silencing of A20 combined with IFN-gamma significantly represses cell viability, and induces apoptosis and cell-cycle arrest in HCC cells. By investigating mechanisms implicated in A20 and IFN-gamma-mediated signaling pathways, we revealed that the phosphoinositide 3-kinase/Akt signaling pathway and antiapoptotic B-cell lymphoma 2 proteins were repressed. Moreover, we also found that phosphorylation of STAT1 and STAT3 was significantly enhanced after the downregulation of A20 in combination with treatment of IFN-gamma. Inhibitor of STAT1 but not STAT3 could block the antitumor effect of IFN-gamma. Therefore, targeting A20 enhances the cytotoxicity of IFN-gamma against HCC cells and may present a promising therapeutic strategy for HCC. PMID- 29033547 TI - New tablet formulation of tacrolimus with smaller interindividual variability may become a better treatment option than the conventional capsule formulation in organ transplant patients. AB - To evaluate the pharmacokinetic (PK) and tolerability profiles of a new tablet formulation of tacrolimus and its interindividual variability (IIV) in the systemic exposure, and to compare them with those of the conventional capsule formulation, a randomized, open-label, two-treatment, two-period, two-sequence, crossover study was performed in 47 healthy males. The capsule or tablet formulation of tacrolimus was orally administered, and serial blood samples were collected up to 96 hours after dosing. Whole-blood tacrolimus concentration was determined using liquid chromatography-tandem mass spectrometry. The maximum whole-blood tacrolimus concentration (Cmax) and the area under the whole-blood tacrolimus concentration-time curve from 0 hour to the last quantifiable concentration (AUClast) were compared between the two formulations. The similarity factor (f2) of the in vitro dissolution profiles was calculated. The geometric mean ratio (90% confidence interval) of tablet to capsule was 0.9680 (0.8873-1.0560) and 1.0322 (0.9359-1.1385) for Cmax and AUClast, respectively. The IIV of Cmax and AUClast of the tablet was smaller than the capsule. The f2 values were >50 in all media. Both formulations were well tolerated. Thus, the tablet formulation of tacrolimus has smaller IIV in the systemic exposure than capsule, while having comparable PK and tolerability profiles, which may render it as a better treatment option for organ transplant patients. PMID- 29033546 TI - Safety and efficacy profile of pembrolizumab in solid cancer: pooled reanalysis based on randomized controlled trials. AB - BACKGROUND: The aim of the present review is to systematically evaluate the efficacy and safety of pembrolizumab by analyzing survival outcomes and at the same time, to present evidence for future clinical applications of anti programmed cell death protein 1 (anti-PD-1) antibodies by analyzing the efficacy and safety of pembrolizumab. METHODS: A comprehensive literature search of PubMed, Medline, and Embase was performed for all relevant clinical trials. In this study, adverse events of any grades and grades >=3 were summarized and calculated for event rates. For controlled trials, odd ratios (ORs) were calculated to determine the role of pembrolizumab in adverse events. The Kaplan Meier survival curves were extracted for hazard ratio (HR) calculation and survival outcomes were measured by progression-free survival (PFS). RESULTS: A total of 3,953 patients were included in safety analyses. The results indicated that the overall incidence of any treatment emergent adverse events was 74.3% (95% confidence interval [CI]: 0.671-0.805). The efficacy analysis involving 915 patients with advanced melanoma suggested that 10 mg/kg of pembrolizumab every 3 weeks could improve patients' PFS (HR =0.73, 95% CI: 0.64-0.83). CONCLUSION: Pembrolizumab is a promising therapeutic option that could bring better survival outcomes but, at the same time, leads to higher frequency of some adverse events. PMID- 29033549 TI - Reliability of patient-reported outcome instruments in US adults with hemophilia: the Pain, Functional Impairment and Quality of life (P-FiQ) study. AB - BACKGROUND: Hemophilia is marked by frequent joint bleeding, resulting in pain and functional impairment. OBJECTIVE: This study aimed to assess the reliability of five patient-reported outcome (PRO) instruments in people with hemophilia (PWH) in a non-bleeding state. METHODS: Adult male PWH of any severity and inhibitor status, with a history of joint pain or bleeding, completed a pain history and five PRO instruments (EQ-5D-5L, Brief Pain Inventory v2 [BPI], International Physical Activity Questionnaire [IPAQ], Short Form 36 Health Survey v2 [SF-36v2], and Hemophilia Activities List [HAL]) during their routine comprehensive care visit. Patients were approached to complete the PRO instruments again at the end of their visit while in a similar non-bleeding state. Concordance of individual questionnaire items and correlation between domain scores were assessed using intra-class correlation coefficient (ICC). RESULTS: Participants completing the retest (n=164) had a median age of 33.9 years. Median time for completion of the initial survey with PRO instruments was 36.0 minutes and for the five PRO instruments, median retest time was 21.0 minutes. The majority of participants had hemophilia A (74.4%), were white and non-Hispanic (72.6%), and self-reported arthritis/bone/joint problems (61%). Median/mean test-retest concordance was EQ-5D-5L 80.0%/79.1%, BPI 54.5%/58.9%, IPAQ 100%/100%, SF-36v2 77.8%/76.4%, and HAL 77.4%/75.9%. ICCs for test-retest reliability were EQ-5D-5L index 0.890; BPI - severity 0.950; BPI - interference 0.920; IPAQ total activity 0.940; SF-36v2 overall health 0.910; HAL total score 0.970. CONCLUSION: All five PRO scales showed acceptable test-retest reliability in adult PWH. Therefore, the choice of instrument to be used for research or clinical care should be driven by instrument characteristics other than reliability. PMID- 29033550 TI - Coach to cope: feasibility of a life coaching program for young adults with cystic fibrosis. AB - BACKGROUND: Over the last two decades, lifespan has increased significantly for people living with cystic fibrosis (CF). However, several studies have demonstrated that many young adults with CF report mental health problems and poor adherence to their prescribed treatments, challenging their long-term physical health. Treatment guidelines recommend interventions to improve adherence and self-management. The aim of this study was to test the feasibility of a life coaching intervention for young adults with CF. METHODS: A randomized, controlled feasibility study was conducted at the CF Center at Copenhagen University Hospital, Rigshospitalet. Participants were young adults with CF, aged 18-30 years without severe intellectual impairments. Participants were randomized to either life coaching or standard care. The intervention consisted of up to 10 individual, face-to-face or telephone coaching sessions over a period of 1 year. Primary outcomes were recruitment success, acceptability, adherence to the intervention, and retention rates. Secondary outcome measures included health related quality of life, adherence to treatment, self-efficacy, pulmonary function, body mass index, and blood glucose values. RESULTS: Among the 85 eligible patients approached, 40 (47%) were enrolled and randomized to the intervention or control group; two patients subsequently withdrew consent. Retention rates after 5 and 10 coaching sessions were 67% and 50%, respectively. Reasons for stopping the intervention included lack of time, poor health, perceiving coaching as not helpful, lack of motivation, and no need for further coaching. Coaching was primarily face-to-face (68%). No significant differences were found between the groups on any of the secondary outcomes. CONCLUSION: Both telephone and face-to-face coaching were convenient for participants, with 50% receiving the maximum offered coaching sessions. However, the dropout rate early in the intervention was a concern. In future studies, eligible participants should be screened for their interest and perceived need for support and life coaching before enrollment. PMID- 29033552 TI - Therapy preferences of patients with lung and colon cancer: a discrete choice experiment. AB - OBJECTIVES: There is increasing interest in studies that examine patient preferences to measure health-related outcomes. Understanding patients' preferences can improve the treatment process and is particularly relevant for oncology. In this study, we aimed to identify the subgroup-specific treatment preferences of German patients with lung cancer (LC) or colorectal cancer (CRC). METHODS: Six discrete choice experiment (DCE) attributes were established on the basis of a systematic literature review and qualitative interviews. The DCE analyses comprised generalized linear mixed-effects model and latent class mixed logit model. RESULTS: The study cohort comprised 310 patients (194 with LC, 108 with CRC, 8 with both types of cancer) with a median age of 63 (SD =10.66) years. The generalized linear mixed-effects model showed a significant (P<0.05) degree of association for all of the tested attributes. "Strongly increased life expectancy" was the attribute given the greatest weight by all patient groups. Using latent class mixed logit model analysis, we identified three classes of patients. Patients who were better informed tended to prefer a more balanced relationship between length and health-related quality of life (HRQoL) than those who were less informed. Class 2 (LC patients with low HRQoL who had undergone surgery) gave a very strong weighting to increased length of life. We deduced from Class 3 patients that those with a relatively good life expectancy (CRC compared with LC) gave a greater weight to moderate effects on HRQoL than to a longer life. CONCLUSION: Overall survival was the most important attribute of therapy for patients with LC or CRC. Differences in treatment preferences between subgroups should be considered in regard to treatment and development of guidelines. Patients' preferences were not affected by sex or age, but were affected by the cancer type, HRQoL, surgery status, and the main source of information on the disease. PMID- 29033553 TI - A critical analysis of national policies, systems, and structures of patient empowerment in England and Greece. AB - BACKGROUND: Comparison of patient empowerment (PE) policies in European countries can provide evidence for improvement and reform across different health systems. It may also influence patient and public involvement, patient experience, preference, and adherence. OBJECTIVE: The objective of this study was to compare PE within national policies, systems, and structures in England and Greece for achieving integrated people-centered health services. METHODS: We performed a critical search and review of policy and legislation papers in English and Greek languages. This included 1) general health policy and systems papers, 2) PE, patient and/or public involvement or patients' rights policy and legislation (1990-2015), and 3) comparative or discussion papers for England and/or Greece. RESULTS: A total of 102 papers on PE policies, systems, and structures were identified initially; 80 papers were included, in which 46 were policy, legislative, and discussion papers about England, 21 were policy, legislation, and discussion papers about Greece, and 13 were comparative or discussion papers including both the countries. In England, National Health Service policies emphasized patient-centered services, involvement, and empowerment, with recent focus on patients' rights; while in Greece, they emphasized patients' rights and quality of services, with recent mentions on empowerment. The health ombudsman is a very important organization across countries; however, it may be more powerful in Greece, because of the nonexistence of local mediating bodies. Micro structures at trusts/hospitals are comparable, but legislation gives more power to the local structures in Greece. CONCLUSION: PE policies and systems have been developed and expressed differently in these countries. However, PE similarities, comparable dimensions and mechanisms, were identified. For both the countries, comparative research and these findings could be beneficial in building connections and relationships, contributing to wider European and international developments on PE, involvement, and patients' rights and further impact on patient preferences and adherence. PMID- 29033551 TI - Healthcare provider relational quality is associated with better self-management and less treatment burden in people with multiple chronic conditions. AB - PURPOSE: Having multiple chronic conditions (MCCs) can lead to appreciable treatment and self-management burden. Healthcare provider relational quality (HPRQ) - the communicative and interpersonal skill of the provider - may mitigate treatment burden and promote self-management. The objectives of this study were to 1) identify the associations between HPRQ, treatment burden, and psychosocial outcomes in adults with MCCs, and 2) determine if certain indicators of HPRQ are more strongly associated than others with these outcomes. PATIENTS AND METHODS: This is a cross-sectional survey study of 332 people with MCCs. Patients completed a 7-item measure of HPRQ and measures of treatment and self-management burden, chronic condition distress, self-efficacy, provider satisfaction, medication adherence, and physical and mental health. Associations between HPRQ, treatment burden, and psychosocial outcomes were determined using correlational analyses and independent samples t-tests, which were repeated in item-level analyses to explore which indicators of HPRQ were most strongly associated with the outcomes. RESULTS: Most respondents (69%) were diagnosed with >=3 chronic conditions. Better HPRQ was found to be associated with less treatment and self management burden and better psychosocial outcomes (P<0.001), even after controlling for physical and mental health. Those reporting 100% adherence to prescribed medications had higher HPRQ scores than those reporting less than perfect adherence (P<0.001). HPRQ items showing the strongest associations with outcomes were "my healthcare provider spends enough time with me", "my healthcare provider listens carefully to me", and "I have trust in my healthcare provider". CONCLUSION: Good communication and interpersonal skills of healthcare providers may lessen feelings of treatment burden and empower patients to feel confident in their self-management. Patient trust in the provider is an important element of HPRQ. Educating healthcare providers about the importance of interpersonal and relational skills could lead to more patient-centered care. PMID- 29033554 TI - Validation of the Italian version of the Patient Reported Experience Measures for intermediate care services. AB - BACKGROUND: Intermediate care (IC) services are a key component of integrated care for elderly people, providing a link between hospital and home through provision of rehabilitation and health and social care. The Patient Reported Experience Measures (PREMs) are designed to measure user experience of care in IC settings. OBJECTIVE: To examine the feasibility and the scaling properties of the Italian version of PREMs questionnaires for use in IC services. METHODS: A cross sectional survey was conducted on consecutive users of 1 home-based and 4 bed based IC services in Emilia-Romagna (Italy). The main outcome measure was the PREMs questionnaire results. PREMs for each home- and bed-based IC services were translated, back-translated, and adapted through consensus among the members of the advisory board and pilot testing of face validity in 15 patients. A total of 199 questionnaires were returned from users of bed-based services and 185 were returned by mail from users of home-based services. The return rates and responses were examined. Mokken analysis was used to examine the scaling properties of the PREMs. RESULTS: Analysis performed on the bed-based PREMs (N=154) revealed that 13 items measured the same construct and formed a moderate strength scale (Loevinger H=0.488) with good reliability (Cronbach's alpha =0.843). Analysis of home-based PREMs (N=134 records) revealed that 15 items constituted a strong scale (Loevinger H=0.543) with good reliability (Cronbach's alpha =0.875). CONCLUSION: The Italian versions of the bed- and home-based IC PREMs questionnaires proved to be valid and reliable tools to assess patients' experience of care. Future plans include monitoring user experience over time in the same facilities and in other Italian IC settings for between-service benchmarking. PMID- 29033548 TI - The new era of nanotechnology, an alternative to change cancer treatment. AB - In the last few years, nanostructures have gained considerable interest for the safe delivery of therapeutic agents. Several therapeutic approaches have been reported, such as molecular diagnosis, disease detection, nanoscale immunotherapy and anticancer drug delivery that could be integrated into clinical use. The current paper aims to highlight the background that supports the use of nanoparticles conjugated with different types of therapeutic agents, applicable in targeted therapy and cancer research, with a special emphasis on hematological malignancies. A particular key point is the functional characterization of nonviral delivery systems, such as gold nanoparticles, liposomes and dendrimers. The paper also presents relevant published data related to microRNA and RNA interference delivery using nanoparticles in cancer therapy. PMID- 29033555 TI - Treatment adherence in hemophilia. AB - Prophylactic clotting-factor regimens reduce the occurrence of bleeding episodes and maintain joint health in individuals with moderate and severe hemophilia. However, these outcomes are only achieved with adherence to prescribed prophylaxis regimens. There are several types of barriers to adherence related to key patient, condition, treatment, health-care system, and/or socioeconomic variables. Notably, health-care professionals may not prescribe prophylaxis if they perceive that a patient will be nonadherent. Prophylactic treatment strategies should be developed with the patient and family, focused on individualized treatment goals. Personalized strategies are needed to reinforce the importance of and encourage confidence in administering the regular infusions required for prophylactic therapy. These strategies may include verbal and written information delivered by health-care professionals, peers, and inter active media. The advent of extended half-life clotting factors requiring less frequent infusion may improve adherence. PMID- 29033556 TI - Swallowing difficulties with medication intake assessed with a novel self-report questionnaire in patients with systemic sclerosis - a cross-sectional population study. AB - OBJECTIVES: To assess subjective swallowing difficulties (SD) with medication intake and their practical consequences in patients suffering from systemic sclerosis (SSc) with a novel self-report questionnaire. DESIGN AND SETTING: Based on a systematic literature review, we developed a self-report questionnaire and got it approved by an expert panel. Subsequently, we sent the questionnaire by post mail to SSc patients of the European Center for the Rehabilitation of Scleroderma Rheinfelden, Switzerland. PARTICIPANTS: Patients were eligible if they were diagnosed with SSc, treated at the center, and were of age >=18 years at the study start. MAIN OUTCOME MEASURES: Prevalence and pattern of SD with oral medication intake, including localization and intensity of complaints. RESULTS: The questionnaire consisted of 30 items divided into five sections Complaints, Intensity, Localization, Coping strategies, and Adherence. Of the 64 SSc patients eligible in 2014, 43 (67%) returned the questionnaire. Twenty patients reported SD with medication intake (prevalence 47%), either currently (11; 26%) or in the past that had been overcome (9; 21%). Self-reported SD were localized mostly in the larynx (43%) and esophagus (34%). They were of moderate (45%) or strong to unbearable intensity (25%). Modification of the dosage form was reported in 40% of cases with SD. Adherence was poor for 20 (47%) patients and was not associated with SD (p=0.148). CONCLUSION: Our novel self-report questionnaire is able to assess the pattern of complaints linked to medication intake, that is, localization and intensity. It may serve as a guide for health care professionals in selecting the most suitable therapy option, enabling tailored counseling to reduce inappropriate medication modifications. PMID- 29033557 TI - The correlates of social capital and adherence to healthy lifestyle in patients with coronary heart disease. AB - OBJECTIVE: To investigate the correlates of social capital and adherence to healthy lifestyle in patients with coronary heart disease (CHD). METHODS: This register-based, cross-sectional study consisted of individuals diagnosed with CHD at four community health service centers, Shanghai, China, between April and July 2016 (n=609). The sociodemographic characteristics, social capital, adherence to physical activity, and nutrition data were obtained through face-to-face interviews. Social capital was assessed by social participation, social networking, social support, social trust, and sense of belonging. Physical activity and nutrition were measured with the Health-Promoting Lifestyle Profile II. The independent two-sample t-test and Pearson's correlations were used to analyze associations among variables. Hierarchical multiple regression models were used to evaluate effects of social capital on adherence to physical activity and nutrition. RESULTS: The average age of the sample was 60.87 (standard deviation [SD] =6.91), with 54.4% being male and 45.6% female. The average score of physical activity and nutrition were 2.38 (SD =0.59) and 2.78 (SD =0.50), respectively. The final model significantly explained 28.9% of variance in physical activity (F=34.96, P<0.001) and 30.5% of variance in nutrition (F=37.73, P<0.001). Most of the subdimensions of social capital were significantly associated with physical activity and nutrition, after controlling for marital status and education level. CONCLUSION: The results suggested that social capital was the correlate of adherence to long-term healthy lifestyle, including physical activity and nutrition. These findings highlight the need to take into account social capital in developing intervention strategies to improve the adherence to the long-term healthy lifestyle for patients with CHD. PMID- 29033558 TI - Effect of surface organic coatings of cellulose nanocrystals on the viability of mammalian cell lines. AB - Cellulose nanocrystals (CNCs) have emerged as promising candidates for a number of bio-applications. Surface modification of CNCs continues to gain significant research interest as it imparts new properties to the surface of the nanocrystals for the design of multifunctional CNCs-based materials. A small chemical surface modification can potentially lead to drastic behavioral changes of cell-material interactions thereby affecting the intended bio-application. In this work, unmodified CNCs were covalently decorated with four different organic moieties such as a diaminobutane fragment, a cyclic oligosaccharide (beta-cyclodextrin), a thermoresponsive polymer (poly[N-isopropylacrylamide]), and a cationic aminomethacrylamide-based polymer using different synthetic covalent methods. The effect of surface coatings of CNCs and the respective dose-response of the above organic moieties on the cell viability were evaluated on mammalian cell cultures (J774A.1 and MFC-7), using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphe-nyltetrazolium bromide and lactate dehydrogenase assays. Overall, the results indicated that cells exposed to surface-coated CNCs for 24 h did not display major changes in cell viability, membrane permeability as well as cell morphology. However, with longer exposure, all these parameters were somewhat affected, which appears not to be correlated with either anionic or cationic surface coatings of CNCs used in this study. PMID- 29033560 TI - Proactive palliative care for patients with COPD (PROLONG): a pragmatic cluster controlled trial. AB - BACKGROUND AND AIM: Patients with advanced chronic obstructive pulmonary disease (COPD) have poor quality of life. The aim of this study was to assess the effects of proactive palliative care on the well-being of these patients. TRIAL REGISTRATION: This trial is registered with the Netherlands Trial Register, NTR4037. PATIENTS AND METHODS: A pragmatic cluster controlled trial (quasi experimental design) was performed with hospitals as cluster (three intervention and three control) and a pretrial assessment was performed. Hospitals were selected for the intervention group based on the presence of a specialized palliative care team (SPCT). To control for confounders, a pretrial assessment was performed in which hospitals were compared on baseline characteristics. Patients with COPD with poor prognosis were recruited during hospitalization for acute exacerbation. All patients received usual care while patients in the intervention group received additional proactive palliative care in monthly meetings with an SPCT. Our primary outcome was change in quality of life score after 3 months, which was measured using the St George Respiratory Questionnaire (SGRQ). Secondary outcomes were, among others, quality of life at 6, 9 and 12 months; readmissions: survival; and having made advance care planning (ACP) choices. All analyses were performed following the principle of intention to treat. RESULTS: During the year 2014, 228 patients (90 intervention and 138 control) were recruited and at 3 months, 163 patients (67 intervention and 96 control) completed the SGRQ. There was no significant difference in change scores of the SGRQ total at 3 months between groups (-0.79 [95% CI, -4.61 to 3.34], p=0.70). However, patients who received proactive palliative care experienced less impact of their COPD (SGRQ impact subscale) at 6 months (-6.22 [-11.73 to 0.71], p=0.04) and had more often made ACP choices (adjusted odds ratio 3.26 [1.49-7.14], p=0.003). Other secondary outcomes were not significantly different. CONCLUSION: Proactive palliative care did not improve the overall quality of life of patients with COPD. However, patients more often made ACP choices which may lead to better quality of care toward the end of life. PMID- 29033559 TI - Pressure injuries in elderly with acute myocardial infarction. AB - OBJECTIVES: To assess pressure injury (PI) incidence among patients hospitalized for acute myocardial infarction (AMI) in an intensive coronary care unit (ICCU) and to detect the impact of specific risk factors on the development of PI in this clinical setting. PATIENTS AND METHODS: Prospective cohort study in ICCU setting. Patients admitted for AMI: patients mean age 67.5+/-11.5 years (n=165). Norton Scale, Mini Nutritional Assessment (MNA), demographic, clinical and biochemical data collected at the time of ICCU admission have been tested in a logistic model to assess the odds ratios (ORs) of PI risk development. The jackknifed area under the receiver operating characteristic curve (AUC) and the decision curve analysis have been employed to assess the additive predictive value of a factor. RESULTS: Twenty-seven (16.3%) patients developed PIs. An increased PI risk was associated with advanced age (OR =2.5 every 10-year increase; 95% CI =1.1-5.7), while probability of PI development was reduced in patients with higher left ventricular ejection fraction (LVEF) (OR =0.4 every 5% increase; 95% CI =0.24-0.66), MNA score (OR =0.65 every unit change; 95% CI =0.44 0.95) and Norton Scale score (OR =0.7 every unit change; 95% CI =0.57-0.88). The AUC and the decision curve analysis showed that LVEF inclusion improved the discrimination power and the clinical net benefit of the final model. CONCLUSION: Age, LVEF, Norton Scale and MNA scores have a strong and independent clinical value as predictors of in-hospital PI development in patients with AMI. This finding has the potential to improve the clinical management of patients admitted in ICCU. PMID- 29033561 TI - Specific IgA against Pseudomonas aeruginosa in severe COPD. AB - BACKGROUND: The bronchial mucosa is protected by a specialized immune system focused on the prevention of colonization and infection by potentially pathogenic microorganisms (PPMs). Immunoglobulin A (IgA) is the principal antibody involved in this mechanism. A defective immune barrier may facilitate the recurrent presence of PPMs in COPD. PURPOSE: The aim of this study was to determine IgA mediated bronchial specific immune responses against Pseudomonas aeruginosa in stable patients with severe disease. METHODS: COPD patients with good-quality sputum samples obtained during stability were included and classified according to the presence or absence of chronic bronchial colonization by P. aeruginosa. Levels of specific IgA for P. aeruginosa in sputum were determined by ELISA and expressed as ratios, using the pooled level of 10 healthy subjects as reference (optical density450 patient/control). RESULTS: Thirty-six stable COPD patients were included, 15 of whom had chronic colonization by P. aeruginosa. Levels of specific IgA against P. aeruginosa in stable non-colonized patients were lower than those in healthy subjects (IgA ratio: median =0.15 [interquartile range {IQR} 0.05-0.36]). Colonized patients had higher levels, (1.56 [IQR 0.59-2.79]) (p<0.001, Mann-Whitney U test), with figures equivalent but not exceeding the reference value. CONCLUSION: IgA-based immune response against P. aeruginosa was low in severe COPD patients. Levels of specific IgA against this microorganism were higher in colonized patients, but did not attain clear-cut levels above the reference. An impaired local response against P. aeruginosa may favor chronic colonization and recurrent infections in severe COPD. PMID- 29033562 TI - Associations between the psychological health of patients and carers in advanced COPD. AB - OBJECTIVE: Anxiety and depression are highly prevalent in patients with COPD and their informal carers, and associated with numerous risk factors. However, few studies have investigated these in primary care or the link between patient and carer anxiety and depression. We aimed to determine this association and factors associated with anxiety and depression in patients, carers, and both (dyads), in a population-based sample. MATERIALS AND METHODS: This was a prospective, cross sectional study of 119 advanced COPD patients and their carers. Patient and carer scores >=8 on the Hospital Anxiety and Depression Scale defined symptoms of anxiety and depression, chi2 tests determined associations between patient and carer symptoms of anxiety/depression, and chi2 and independent t-tests for normally distributed variables (otherwise Mann-Whitney U tests) were used to identify other variables significantly associated with these symptoms in the patient or carer. Patient-carer dyads were categorized into four groups relating to the presence of anxious/depressive symptoms in: both patient and carer, patient only, carer only, and neither. Factors associated with dyad symptoms of anxiety/depression were determined with chi2 tests and one-way analysis of variance for normally distributed variables (otherwise Kruskal-Wallis tests). RESULTS: Prevalence of symptoms of anxiety and depression was 46.4% (n=52) and 42.9% (n=48) in patients, and 46% (n=52) and 23% (n=26) in carers, respectively. Patient and carer symptoms of anxiety/depression were significantly associated. Anxious and depressive symptoms in the patient were also significantly associated with more physical comorbidities, more exacerbations, greater dyspnea, greater fatigue, poor mastery, and depressive symptoms with younger age. Symptoms of carer anxiety were significantly associated with being female and separated/divorced/widowed, and depressive symptoms with younger age, higher educational level, and more physical comorbidities, and symptoms of carer anxiety and depression with more unmet support needs, greater subjective caring burden, and poor patient mastery. Dyad symptoms of anxiety/depression were significantly associated with greater patient fatigue. CONCLUSION: Symptoms of anxiety and depression in COPD patients and carers are significantly associated. Given their high prevalence, considerable impact on mortality, impact on quality of life and health care use, and associations with each other, screening for and addressing patient and carer anxiety and depression in advanced COPD is recommended. PMID- 29033563 TI - Role of inspiratory capacity on dyspnea evaluation in COPD with or without emphysematous lesions: a pilot study. AB - BACKGROUND: Since forced expiratory volume in 1 second (FEV1) shows a weak correlation with patients' symptoms in COPD, some volume parameters may better reflect the change in dyspnea symptoms after treatment. In this article, we investigated the role of inspiratory capacity (IC) on dyspnea evaluation among COPD patients with or without emphysematous lesions. METHODS: In this prospective study, 124 patients with stable COPD were recruited. During the baseline visit, patients performed pulmonary function tests and dyspnea evaluation using the modified Medical Research Council (mMRC) scale. Partial patients underwent quantitative computerized tomography scans under physicians' recommendations, and emphysematous changes were assessed using the emphysema index (EI; low attenuation area [LAA]% -950). These subjects were then divided into the emphysema-predominant group (LAA% -950>=9.9%) and the non-emphysema-predominant group (LAA% -950<9.9%). After treatment for ~1 month, subjects returned for reevaluation of both pulmonary function parameters and dyspnea severity. Correlation analysis between the change in IC (DeltaIC) and dyspnea (DeltamMRC) was performed. RESULTS: Correlation analysis revealed that DeltaIC was negatively correlated with DeltamMRC (correlation coefficient [cc], -0.490, P<0.001) in the total study population, which was stronger than that between DeltaFEV1 and DeltamMRC (cc, -0.305, P=0.001). Patients with absolute DeltamMRC >1 were more likely to exhibit a marked increase in IC (>=300 mL) than those with absolute DeltamMRC <=1 (74.36% versus 35.29%; odds ratio [OR], 5.317; P<0.001). In the emphysema-predominant group, only DeltaIC strongly correlated with DeltamMRC (cc, -0.459, P=0.005), while DeltaFEV1 did not (P>0.05). CONCLUSION: IC could serve as an effective complement to FEV1 in COPD patients undergoing dyspnea evaluation after treatment. For COPD patients with predominant emphysematous lesions, an increase in IC is particularly more suitable for explaining dyspnea relief than FEV1. PMID- 29033564 TI - Delivery of sodium morrhuate to hemangioma endothelial cells using immunoliposomes conjugated with anti-VEGFR2/KDR antibody. AB - Hemangioma is a common benign tumor affecting infants. In this study, we prepared sodium morrhuate immunoliposomes through encapsulation of sodium morrhuate with liposomes coupled with an anti-VEGFR2/KDR antibody and examined its effect on the biology of human hemangioma endothelial cells (HECs). It was found that compared to the liposomal sodium morrhuate group, treatment with sodium morrhuate immunoliposomes facilitated cell detachment and apoptotic death. Confocal microscopy analysis revealed that sodium morrhuate immunoliposomes had a higher binding activity to HECs than liposomal sodium morrhuate. Apoptosis analysis further demonstrated that treatment with liposomal sodium morrhuate or sodium morrhuate immunoliposomes significantly induced apoptosis in HECs, compared to the control group. Western blot analysis revealed an induction of caspase-3 and caspase-9 levels and reduction of caspase-8 and Bcl-2 levels in HECs treated with liposomal sodium morrhuate or sodium morrhuate immunoliposomes. Taken together, these results indicate that sodium morrhuate immunoliposomes have an increased capacity to target HECs and promote mitochondrial apoptosis. Therefore, sodium morrhuate immunoliposomes may represent a promising agent in the treatment of hemangiomas. PMID- 29033565 TI - Double-receptor-targeting multifunctional iron oxide nanoparticles drug delivery system for the treatment and imaging of prostate cancer. AB - As an alternative therapeutic treatment to reduce or eliminate the current side effects associated with advanced prostate cancer (PCa) chemotherapy, a multifunctional double-receptor-targeting iron oxide nanoparticles (IONPs) (luteinizing hormone-releasing hormone receptor [LHRH-R] peptide- and urokinase type plasminogen activator receptor [uPAR] peptide-targeted iron oxide nanoparticles, LHRH-AE105-IONPs) drug delivery system was developed. Two tumor targeting peptides guided this double-receptor-targeting nanoscale drug delivery system. These peptides targeted the LHRH-R and the uPAR on PCa cells. Dynamic light scattering showed an increase in the hydrodynamic size of the LHRH-AE105 IONPs in comparison to the non-targeted iron oxide nanoparticles (NT-IONPs). Surface analysis showed that there was a decrease in the zeta potential values for drug-loaded LHRH-AE105-IONPs compared to the NT-IONPs. Prussian blue staining demonstrated that the LHRH-AE105-IONPs were internalized efficiently by the human PCa cell line, PC-3. In vitro, magnetic resonance imaging (MRI) results confirmed the preferential binding and accumulation of LHRH-AE105-IONPs in PC-3 cells compared to normal prostate epithelial cells (RC77N/E). The results also showed that LHRH-AE105-IONPs significantly maintained T2 MRI contrast effects and reduced T2 values upon internalization by PC-3 cells. These paclitaxel-loaded double-receptor-targeting IONPs also showed an approximately twofold reduction in PC-3 cell viability compared to NT-IONPs. PMID- 29033566 TI - rAAV-mediated overexpression of TGF-beta via vector delivery in polymeric micelles stimulates the biological and reparative activities of human articular chondrocytes in vitro and in a human osteochondral defect model. AB - Recombinant adeno-associated virus (rAAV) vectors are clinically adapted vectors to durably treat human osteoarthritis (OA). Controlled delivery of rAAV vectors via polymeric micelles was reported to enhance the temporal and spatial presentation of the vectors into their targets. Here, we tested the feasibility of delivering rAAV vectors via poly (ethylene oxide) (PEO) and poly (propylene oxide) (PPO) (poloxamer and poloxamine) polymeric micelles as a means to overexpress the therapeutic factor transforming growth factor-beta (TGF-beta) in human OA chondrocytes and in experimental human osteochondral defects. Application of rAAV-human transforming growth factor-beta using such micelles increased the levels of TGF-beta transgene expression compared with free vector treatment. Overexpression of TGF-beta with these systems resulted in higher proteoglycan deposition and increased cell numbers in OA chondrocytes. In osteochondral defect cultures, a higher deposition of type-II collagen and reduced hypertrophic events were noted. Delivery of therapeutic rAAV vectors via PEO-PPO-PEO micelles may provide potential tools to remodel human OA cartilage. PMID- 29033567 TI - Nanoparticles for the treatment of liver fibrosis. AB - Chronic liver diseases represent a global health problem due to their high prevalence worldwide and the limited available curative treatment options. They can result from various causes, both infectious and noninfectious diseases. The application of nanoparticle (NP) systems has emerged as a rapidly evolving area of interest for the safe delivery of various drugs and nucleic acids for chronic liver diseases. This review presents the pathogenesis, diagnosis and the emerging nanoparticulate systems used in the treatment of chronic liver diseases caused by liver fibrosis. Activated hepatic stellate cell (HSC) is considered to be the main mechanism for liver fibrosis. Ultrasonography and magnetic resonance imaging techniques are widely used noninvasive diagnostic methods for hepatic fibrosis. A variety of nanoparticulate systems are mainly focused on targeting HSC in the treatment of hepatic fibrosis. As early liver fibrosis is reversible by current NP therapy, it is being studied in preclinical as well as clinical trials. Among various nanoparticulate systems, inorganic NPs, liposomes and nanomicelles have been widely studied due to their distinct properties to deliver drugs as well as other therapeutic moieties. Liposomal NPs in clinical trials is considered to be a milestone in the treatment of hepatic fibrosis. Currently, NP therapy for liver fibrosis is updating fast, and hopefully, it can be the future remedy for liver fibrosis. PMID- 29033569 TI - Associations among depression severity, painful physical symptoms, and social and occupational functioning impairment in patients with major depressive disorder: a 3-month, prospective, observational study. AB - PURPOSE: To investigate associations among depression severity, painful physical symptoms (PPS), and social and occupational functioning impairment in patients with major depressive disorder (MDD) who had achieved complete remission (CR) or partial remission (PR) after acute treatment. PATIENTS AND METHODS: This was a 12 week, multicenter, prospective, observational study. Patients with MDD treated with an antidepressant medication for the previous 12 weeks (+/-3 weeks) who had achieved CR (defined as a 17-item Hamilton Rating Scale for Depression [HAM-D17] score <=7) or PR (HAM-D17 score >=8 and <=18) were enrolled. Depression severity, PPS, and impairment in social and occupational functioning were assessed using the HAM-D17, the Brief Pain Inventory (Short Form) (BPI-SF), and the Social and Occupational Functioning Assessment Scale (SOFAS), respectively, at enrollment (Week 12) and after 12 weeks (Week 24). RESULTS: Overall, 323 Japanese patients with MDD were enrolled (CR n=158, PR n=165) and 288 patients completed the study (CR n=139, PR n=149). HAM-D17 and SOFAS scores were strongly and negatively correlated at enrollment (Week 12; P<0.0001) and Week 24 (P<0.0001). A weak negative correlation between the BPI-SF and SOFAS was observed at Week 24 (P=0.0011), but not at enrollment (P=0.164). Remission status at enrollment (CR or PR) was associated with achieving normal social and occupational functioning (SOFAS score >=80) at Week 24 in patients who had not achieved normal social and occupational functioning (SOFAS score <80) at enrollment (CR vs PR, OR=0.05 [95% CIs 0.01-0.18], P<0.0001). A greater proportion of patients with CR and no PPS at enrollment achieved SOFAS scores >=80 at Week 24 than those with CR and PPS. CONCLUSION: Our results suggest that treating both depressive symptoms and PPS is important for achieving a normal level of functioning on a long-term basis in patients with MDD. PMID- 29033568 TI - In vivo evaluation of cetuximab-conjugated poly(gamma-glutamic acid)-docetaxel nanomedicines in EGFR-overexpressing gastric cancer xenografts. AB - Epidermal growth factor receptor (EGFR), upregulated in gastric cancer patients, is an oncogene of interest in the development of targeted cancer nanomedicines. This study demonstrates in silico modeling of monoclonal antibody cetuximab (CET MAb)-conjugated docetaxel (DOCT)-loaded poly(gamma-glutamic acid) (gamma-PGA) nanoparticles (Nps) and evaluates the in vitro/in vivo effects on EGFR overexpressing gastric cancer cells (MKN-28). Nontargeted DOCT-gamma-PGA Nps (NT Nps: 110+/-40 nm) and targeted CET MAb-DOCT-gamma-PGA Nps (T Nps: 200+/-20 nm) were prepared using ionic gelation followed by 1-Ethyl-3-(3-dimethyl aminopropyl)carbodiimide-N-Hydoxysuccinimide (EDC-NSH) chemistry. Increased uptake correlated with enhanced cytotoxicity induced by targeted Nps to EGFR +ve MKN-28 compared with nontargeted Nps as evident from MTT and flow cytometric assays. Nanoformulated DOCT showed a superior pharmacokinetic profile to that of free DOCT in Swiss albino mice, indicating the possibility of improved therapeutic effect in the disease model. Qualitative in vivo imaging showed early and enhanced tumor targeted accumulation of CET MAb-DOCT-gamma-PGA Nps in EGFR +ve MKN-28-based gastric cancer xenograft, which exhibited efficient arrest of tumor growth compared with nontargeted Nps and free DOCT. Thus, actively targeted CET MAb-DOCT-gamma-PGA Nps could be developed as a substitute to conventional nonspecific chemotherapy, and hence could become a feasible strategy for cancer therapy for EGFR-overexpressing gastric tumors. PMID- 29033570 TI - Atypical depression: current perspectives. AB - The history and present status of the definition, prevalence, neurobiology, and treatment of atypical depression (AD) is presented. The concept of AD has evolved through the years, and currently, in Diagnostic and Statistical Manual of Mental Disorders (DSM), Fifth Edition, the specifier of depressive episode with atypical feature is present for both diagnostic groups, that is, depressive disorders and bipolar and related disorders. This specifier includes mood reactivity, hyperphagia, hypersomnia, leaden paralysis, and interpersonal rejection sensitivity. Prevalence rates of AD are variable, depending on the criteria, methodology, and settings. The results of epidemiological studies using DSM criteria suggest that 15%-29% of depressed patients have AD, and the results of clinical studies point to a prevalence of 18%-36%. A relationship of AD with bipolar depression, seasonal depression, and obesity has also been postulated. Pathogenic research has been mostly focused on distinguishing AD from melancholic depression. The differences have been found in biochemical studies in the areas of hypothalamic-pituitary-adrenal axis, inflammatory markers, and the leptin system, although the results obtained are frequently controversial. A number of findings concerning such differences have also been obtained using neuroimaging and neurophysiological and neuropsychological methods. An initial concept of AD as a preferentially monoamine oxidase inhibitor-responsive depression, although confirmed in some further studies, is of limited use nowadays. Currently, despite numerous drug trials, there are no comprehensive treatment guidelines for AD. We finalize the article by describing the future research perspectives for the definition, neurobiology, and treatment. A better specification of diagnostic criteria and description of clinical picture, a genome-wide association study of AD, and establishing updated treatment recommendations for this clinical phenomenon should be the priorities for the coming years. PMID- 29033571 TI - Bronchial thermoplasty and the role of airway smooth muscle: are we on the right direction? AB - Asthma is characterized by inflammation of the airways that includes eosinophils, basal membrane thickening, epithelial sloughing, vascular changes, smooth muscle hypertrophy and hyperplasia, and mucous gland hyperplasia. Recently, there have been studies on the role of hypersensitivity and inflammation in asthma, but the role of bronchial smooth muscle remains unclear. Bronchial thermoplasty is an endoscopic procedure that is approved by the US Food and Drug Administration (FDA) for the treatment of severe refractory asthma, based on the local delivery of radio frequency at 65 degrees C to the airways, with the aim of controlling bronchospasm through a reduction of airway smooth muscle (ASM). Several recent studies have shown significant improvement in clinical outcomes of bronchial thermoplasty for asthma, including symptom control, reduction in exacerbation and hospitalization rates, improved quality of life, and reduction in number of working days or school days lost due to asthma. Data from these recent studies have shown reduction in ASM following bronchial thermoplasty and changes in inflammation patterns. It has also been argued that bronchial thermoplasty may have modulating effects on neuroendocrine epithelial cells, bronchial nerve endings, TRPV1 nerve receptors, and type-C unmyelinated fibers in the bronchial mucosa. This may involve interrupting the central and local reflexes responsible for the activation of bronchospasm in the presence of bronchial hyperreactivity. Several questions remain regarding the use of bronchial thermoplasty, mechanism of action, selection of appropriate patients, and long-term effects. In this review, the role of ASM in the pathogenesis of asthma and the key aspects of bronchial thermoplasty are discussed, with a focus on the potential clinical effects of this promising procedure, beyond the reduction in ASM. PMID- 29033572 TI - Role of heart-rate variability in preoperative assessment of physiological reserves in patients undergoing major abdominal surgery. AB - BACKGROUND: Major abdominal surgery (MAS) is associated with increased morbidity and mortality. The main objective of our study was to evaluate the predictive value of heart-rate variability (HRV) concerning development of postoperative complications in patients undergoing MAS. The secondary objectives were to identify the relationship of HRV and use of vasoactive drugs during anesthesia, intensive care unit length of stay (ICU-LOS), and hospital length of stay (H LOS). PATIENTS AND METHODS: Sixty-five patients scheduled for elective MAS were enrolled in a prospective, single-center, observational study. HRV was measured by spectral analysis (SA) preoperatively during orthostatic load. Patients were divided according to cardiac autonomic reactivity (CAR; n=23) and non-cardiac autonomic reactivity (NCAR; n=30). RESULTS: The final analysis included 53 patients. No significant difference was observed between the two groups regarding type of surgery, use of minimally invasive techniques or epidural catheter, duration of surgery and anesthesia, or the amount of fluid administered intraoperatively. The NCAR group had significantly greater intraoperative blood loss than the CAR group (541.7+/-541.9 mL vs 269.6+/-174.3 mL, p<0.05). In the NCAR group, vasoactive drugs were used during anesthesia more frequently (n=21 vs n=4; p<0.001), and more patients had at least one postoperative complication compared to the CAR group (n=19 vs n=4; p<0.01). Furthermore, the NCAR group had more serious complications (Clavien-Dindo >= Grade III n=6 vs n=0; p<0.05) and a greater number of complications than the CAR group (n=57 vs n=5; p<0.001). Significant differences were found for two specific subgroups of complications: hypotension requiring vasoactive drugs (NCAR: n=10 vs CAR: n=0; p<0.01) and ileus (NCAR: n=11 vs CAR: n=2; p<0.05). Moreover, significant differences were found in the ICU-LOS (NCAR: 5.7+/-3.5 days vs CAR: 2.6+/-0.7 days; p<0.0001) and H-LOS (NCAR: 12.2+/-5.6 days vs CAR: 7.2+/-1.7 days; p<0.0001). CONCLUSION: Preoperative HRV assessment during orthostatic load is objective and useful for identifying patients with low autonomic physiological reserves and high risk of poor post-operative course. PMID- 29033573 TI - Ten-year outcome of intraoperative treatment of atrial fibrillation using radiofrequency ablation. AB - BACKGROUND: Intraoperative radiofrequency ablation (RFA) has been advocated to treat atrial fibrillation (AF). This report examines the long-term effects of intraoperative RFA in the prevention of recurrence of AF when used as an adjunctive treatment in patients undergoing cardiac procedures for primary indications unrelated to their arrhythmia. METHODS: The study reviewed the records of patients from a tertiary medical center which had 2 cardiac surgeons performing an intraoperative adjunctive RFA procedure. A total of 20 patients undergoing RFA between April 11, 2003 and May 10, 2005 were included and followed for up to 10 years. The primary effectiveness outcome of the study was the recurrence of AF during the follow-up period. Data were collected from office or hospital medical records. RESULTS: A total of 20 patients were included (mean age 69.4 years, males 40%). Eight patients were followed for 10 years and 2 patients for 9 years; 7 patients died during the 10-year follow-up period and 3 patients were lost to follow-up. As their primary procedures, the patients underwent valve surgery (65%), bypass surgery (15%), or both (20%). Intraoperative RFA failed to restore sinus rhythm in 2 patients. In the remaining 18 patients, AF recurred in 10 patients within 2 months of surgery, in 1 patient at 5 months, in 1 patient at 7 months, and in 6 patients after 1 year. CONCLUSION: AF had recurred in 100% of patients by the end of the long-term follow-up period. The adjunctive intraoperative RFA and postoperative interventions employed in this early study failed to maintain sinus rhythm. PMID- 29033574 TI - Surgical site infections following instrumented stabilization of the spine. AB - BACKGROUND: Implant-associated infections are still a feared complication in the field of orthopedics. Bacteria attach to the implant surface and form so-called biofilm colonies that are often difficult to diagnose and treat. Since the majority of studies focus on prosthetic joint infections (PJIs) of the hip and knee, current treatment options (eg, antibiotic prophylaxis) of implant associated infections have mostly been adapted according to these results. OBJECTIVE: The aim of this study was to evaluate patients with surgical site infections following instrumented stabilization of the spine with regard to detected bacteria species and the course of the disease. PATIENTS AND METHODS: We performed a retrospective single-center analysis of implant-associated infections of the spine from 2010 to 2014. A total of 138 patients were included in the study. The following parameters were evaluated: C-reactive protein serum concentration, microbiological evaluation of tissue samples, the time course of the disease, indication for instrumented stabilization of the spine, localization of the infection, and the number of revision surgeries required until cessation of symptoms. RESULTS: Coagulase-negative Staphylococcus spp. were most commonly detected (n=69, 50%), followed by fecal bacteria (n=46, 33.3%). In 23.2% of cases, no bacteria were detected despite clinical suspicion of an infection. Most patients suffered from degenerative spine disorders (44.9%), followed by spinal fractures (23.9%), non-degenerative scoliosis (20.3%), and spinal tumors (10.1%). Surgical site infections occurred predominantly within 3 months (64.5%), late infections after 2 years were rare (4.3%), in particular when compared with PJIs. Most cases were successfully treated after 1 revision surgery (60.9%), but there were significant differences between bacteria species. Fecal bacteria were more difficult to treat and often required more than 1 revision surgery. CONCLUSION: In summary, we were able to demonstrate significant differences between spinal implant-associated infections and PJIs. These aspects should be considered early on in the treatment of surgical site infections following instrumented stabilization of the spine. PMID- 29033575 TI - Renal safety of tenofovir and/or entecavir in patients with chronic HBV monoinfection. AB - BACKGROUND: Tenofovir disoproxil fumarate (TDF) and entecavir (ETV) are recommended as the first-line therapy for chronic hepatitis B (CHB) due to their genetic barrier to resistance and effectiveness of virological suppression. TDF and ETV may cause renal toxicity through various mechanisms such as renal tubular injury, apoptosis, and mitochondrial toxicity. The aims of the current review were to assess the potential renal toxicity associated with the use of TDF and ETV in patients infected with chronic hepatitis B virus (HBV) and to provide clinical perspectives on these two agents in the treatment of CHB. METHODS: A literature search of clinical studies published in PubMed and posted on ClinicalTrials.gov website was implemented to find studies evaluating the potential renal toxicity of TDF and ETV. RESULTS: Twenty-one studies were examined in this review. The TDF dose used in the studies was 245 or 300 mg/day and that of ETV was 0.5 or 1 mg/day. Based on the markers of renal function, patients treated with TDF were not more likely to show changes in renal function than those treated with ETV; however, the estimated glomerular filtration rates (eGFRs) of patients receiving TDF tended to be more clearly reduced than those of patients receiving ETV. The eGFRs of patients treated with TDF decreased in a time-dependent manner, whereas those of patients treated with ETV increased or decreased across various time points. CONCLUSION: The data shown in this study suggest that use of TDF and ETV could be at least associated with reductions in renal function in patients with chronic HBV infection. However, various risk factors, such as pre-existing renal failure and comorbidities, are also associated with decreased renal function during the treatment of TDF and ETV. Thus, studies of management strategies for HBV-infected patients with these risk factors are necessary in the near future. PMID- 29033576 TI - Lumbar spinal stenosis attributable to tophaceous gout: case report and review of the literature. AB - OBJECTIVES: Tophaceous gout seldom affects the axial skeleton. Symptoms vary according to the differential localization of urate deposits and the diagnosis is often delayed. Here, we report an unusual case of lumbar spinal stenosis caused by extradural tophaceous deposits. METHODS: We retrospectively reviewed a case of a patient with tophaceous gout of the lumbar spine and reviewed the relevant literature. RESULTS: A 62-year-old man with a 2-year history of lower back pain and a 3-month history of lower limb radiation pain and intermittent claudication was admitted. After laboratory and imaging investigations he underwent surgical decompression and stabilization. Histological analysis of the extracted specimen confirmed that it was gouty tophus. The patient's symptoms improved progressively after the operation. He recovered very well with no complications. CONCLUSION: The mechanism associated with axial gout is not yet clear. Obesity, inactivity, and previous degenerative disc disease may be the risk factors for spinal tophus. The clinical symptoms are diverse according to the differential localization of urate deposits. It is not easy to diagnose this disease radiographically by routine radiological examination. Analysis of a biopsy specimen is definitely the only way to confirm diagnosis. Surgical treatment should be considered in patients with spinal gout who are experiencing neurological deterioration. PMID- 29033577 TI - Are adipocytokines inflammatory or metabolic mediators in patients with inflammatory bowel disease? AB - This study examined the adiponectin and leptin levels and insulin resistance (IR) in patients with inflammatory bowel disease (IBD) and the associations between these factors and IBD characteristics. Fasting serum leptin, adiponectin, glucose, and insulin levels, as well as inflammatory parameters, were measured in 105 patients with IBD (49 patients with Crohn's disease [CD], 56 patients with ulcerative colitis [UC]) and 98 healthy controls [HC]. IR was evaluated using the Homeostatic Model Assessment of Insulin Resistance (HOMA-IR). Disease activity and severity in patients with UC were evaluated using the Truelove-Witts index, and patients with CD were evaluated using the Crohn's Disease Activity Index. Serum adiponectin levels were found to be significantly lower in patients with CD and UC (p<0.001). Serum leptin levels were also found to be significantly higher in both the UC and CD groups (p<0.001). When HOMA-IR levels were compared, no significant difference was detected for either the CD or UC groups compared with the controls. In conclusion, it was shown that leptin levels increased and adiponectin levels decreased in patients with IBD, which is thought to be related to chronic inflammation. The effects of adipocytokines in patients with IBD with inflammatory and metabolic processes need to be investigated in further broader studies. PMID- 29033578 TI - Right ventricular systolic function in hypertensive heart failure. AB - BACKGROUND: Heart failure (HF) is a major cause of cardiovascular admissions and hypertensive heart failure (HHF) is the most common cause of HF admissions in sub Saharan Africa, Nigeria inclusive. Right ventricular (RV) dysfunction is being increasingly recognized in HF and found to be an independent predictor of adverse outcomes in HF. This study aimed to determine the prevalence of RV systolic dysfunction in HHF by several echocardiographic parameters. METHODOLOGY: One hundred subjects with HHF were recruited consecutively into the study along with 50 age and sex-matched controls. All study participants gave written informed consent, and had a full physical examination, blood investigations, 12-lead electrocardiogram, and transthoracic echocardiography. RV systolic function was assessed in all subjects using different methods based on the American Society of Echocardiography guidelines for echocardiographic assessment of the right heart in adults. This included tricuspid annular plane systolic excursion (TAPSE), RV myocardial performance index (MPI), and RV systolic excursion velocity by tissue Doppler (S'). RESULTS: RV systolic dysfunction was found in 53% of subjects with HHF by TAPSE, 56% by RV MPI, and 48% by tissue Doppler systolic excursion S'. RV systolic dysfunction increased with reducing left ventricular ejection fraction (LVEF) in subjects with HHF. CONCLUSION: A high proportion of subjects with HHF were found to have RV systolic functional abnormalities using TAPSE, RV MPI, and RV S'. Prevalence of RV systolic dysfunction increased with reducing LVEF. PMID- 29033579 TI - General practitioners' and primary care nurses' care for people with disabilities: quality of communication and awareness of supportive services. AB - BACKGROUND: General practitioners (GPs) and primary-care nurses (PCNs) often feel inexperienced or inadequately educated to address unmet needs of people with disabilities (PDs). In this research, GPs' and PCNs' communication with PDs and health care professionals, as well as their awareness of supportive measures relevant to PDs (sensory disabilities excluded), was examined. MATERIALS AND METHODS: An electronic questionnaire was sent out to 545 GPs and 1,547 PCNs employed in Limburg (Belgium). GPs and PCNs self-reported about both communication with parties involved in care for PDs (scale very good, good, bad, very bad) and their level of awareness of supportive measures relevant for PDs (scale unaware, inadequately aware, adequately aware). RESULTS: Of the questionnaire recipients, 6.6% (36 of 545) of GPs and 37.6% (588 of 1,547) of PCNs participated: 68.8% of 32 GPs and 45.8% of 443 PCNs categorized themselves as communicating well with PDs, and attributed miscommunication to limited intellectual capacities of PDs. GPs and PCNs reported communicating well with other health care professionals. Inadequate awareness was reported for tools to communicate (88.3% of GPs, 89% of PCNs) and benefits for PDs (44.1% of GPs, 66.9% of PCNs). CONCLUSION: GPs' and PCNs' lacking awareness of communication aids is problematic. Involvement in a multidisciplinary, expert network might bypass inadequate awareness of practical and social support measures. PMID- 29033581 TI - NANOG as an adverse predictive marker in advanced non-small cell lung cancer treated with platinum-based chemotherapy. AB - PURPOSE: NANOG is a master transcription factor that regulates stem cell pluripotency and cellular reprograming. Increased NANOG expression has been associated with poor survival in several human malignancies. However, the clinical significance of NANOG overexpression in lung cancer has been scarcely evaluated. The aim of this study was to investigate whether NANOG levels are associated with clinical outcomes of patients with non-small cell lung cancer (NSCLC) who were treated with platinum-based chemotherapy. METHODS: NANOG levels were evaluated immunohistochemically using the histologic score (H-score) in tumor tissues from patients with advanced NSCLC who received platinum-based doublet treatment. We performed survival analyses according to the NANOG levels and evaluated the association between clinicopathological parameters and levels of NANOG. RESULTS: Multivariate analyses using 112 tumor specimens showed that high NANOG levels were independently associated with short progression-free survival (hazard ratio [HR] =3.09, 95% confidence interval [CI]: 2.01-4.76) and with short overall survival (HR =3.00, 95% CI: 1.98-4.54). Similar results were shown in the subgroup analyses for patients with adenocarcinoma and squamous cell carcinoma. NANOG expression was not associated with any clinicopathological parameter such as age, gender, smoking status, stage, differentiation, or histological subtypes. CONCLUSION: NANOG overexpression was associated with poor response and short overall survival in patients with advanced NSCLC who were treated with platinum-based chemotherapy, suggesting that NANOG could be a potential adverse predictive marker in this setting. PMID- 29033580 TI - The influence of vascular endothelial growth factor-A and matrix metalloproteinase-2 and -9 in angiogenesis, metastasis, and prognosis of endometrial cancer. AB - Angiogenesis (the growth of new blood vessels) is essential in most of the body's physiological processes, such as in the normal functioning of the endometrium during and after the menstrual cycle. Vascular endothelial growth factor (VEGF) and matrix metalloproteinase (MMP) are the mostly expressed angiogenic factors, especially, during the process of endometrial degeneration and remodeling. In carcinogenesis, tumor hypoxia-induced factors, through the process of "angiogenic switch", stimulate the production of angiogenic factors, particularly VEGF and MMP. Subsequently, these angiogenic factors are associated with degradation, differentiation, proliferation, and migration of vascular endothelial cells, enhancing the formation of new blood vessels to supply the tumor with oxygen and nutrients. This process is equally significant for tumor development and metastasis. Hence, like in other cancers, the overexpression of MMP and VEGF in endometrial cancer (EC) seems to play a significant role in its tumorigenesis and metastasis. This research will discuss the influence of MMP and VEGF on angiogenesis, metastasis, and the prognosis of EC as well as the clinical importance of the factors in the diagnosis of EC. PMID- 29033582 TI - HIF pathway and c-Myc as biomarkers for response to sunitinib in metastatic clear cell renal cell carcinoma. AB - BACKGROUND: Clear-cell renal cell carcinoma (ccRCC) is a heterogeneous disease with a different clinical behavior and response to targeted therapies. Differences in hypoxia-inducible factor (HIF) expression have been used to classify von Hippel-Lindau gene (VHL)-deficient ccRCC tumors. c-Myc may be driving proliferation in HIF-2alpha-expressing tumors in a growth factor independent manner. OBJECTIVE: To explore the HIF-1alpha, HIF-2alpha and c-Myc baseline expression as potential predictors of sunitinib outcome as well as the effectiveness and safety with sunitinib in patients with metastatic ccRCC in routine clinical practice. METHODS: This was an observational and prospective study involving 10 Spanish hospitals. Formalin-fixed, paraffin-embedded primary tumor samples from metastatic ccRCC patients who received sunitinib as first-line treatment were analyzed. Association between biomarker expression and sunitinib treatment outcomes was evaluated. Kaplan-Meier method was applied to measure progression-free survival (PFS) and overall survival. RESULTS: Eighty-one patients were included: median PFS was 10.8 months (95% CI: 7.4-13.5 months), median overall survival was 21.8 months (95% CI: 14.7-29.8 months) and objective response rate was 40.7%, with 7.4% of patients achieving a complete response. Molecular marker staining was performed in the 69 available tumor samples. Significant association with lower PFS was identified for double c-Myc/HIF-2alpha positive staining tumors (median 4.3 vs 11.5 months, hazard ratio =2.64, 95% CI: 1.03-6.80, P=0.036). A trend toward a lower PFS was found in positive c-Myc tumors (median 5.9 vs 10.9 months, P=0.263). HIF-1alpha and HIF-2alpha expression levels were not associated with clinical outcome. CONCLUSION: These preliminary results suggest that predictive subgroups might be defined based on biomarkers such as c-Myc/HIF-2alpha. Further validation with more patients will be needed in order to confirm it. Outcomes with sunitinib in metastatic ccRCC in daily clinical practice resemble those obtained in clinical trials. PMID- 29033583 TI - The effects of nonsteroidal anti-inflammatory drugs in the incident and recurrent risk of hepatocellular carcinoma: a meta-analysis. AB - BACKGROUND: Recent studies have showed that nonsteroidal anti-inflammatory drugs (NSAIDs) could reduce the risk of several types of cancer. However, epidemiological evidence of the association between NSAIDs intake and the risk of hepatocellular carcinoma (HCC) remains controversial. METHODS: To assess the preventive benefit of NSAIDs in HCC, we simultaneously searched the databases of PubMed, EmBase, Web of Science, and Scopus and screened eligible publications. RESULTS: A total of twelve articles (published from 2000 to 2017) from five countries were identified by retrieval. We observed a significantly lower risk of HCC incidence among users of NSAIDs than among those who did not use NSAIDs (pooled hazard ratio [HR] value =0.81, 95% confidence interval [CI]: 0.69-0.94). No evidence of publication bias was observed (Begg's test, P=0.755; Egger's test, P=0.564). However, when stratified according to the categories of NSAIDs, users of non-aspirin NSAIDs (HR =0.81, 95% CI: 0.70-0.94), but not aspirin (HR =0.77, 95% CI: 0.58-1.02), showed a statistically significant reduced HCC incidence. We also found that NSAIDs use significantly reduced the recurrent risk of HCC, with a HR value of 0.79 (95% CI: 0.75-0.84), whereas there was no statistically significant association between NSAIDs use and HCC mortality, with a HR value 0.65 (95% CI: 0.40-1.06). CONCLUSION: Taken together, our meta-analysis demonstrates that NSAIDs significantly reduce the incident and recurrent risk of HCC. PMID- 29033584 TI - DNA ploidy and S-phase fraction analysis in peritoneal carcinomatosis from ovarian cancer: correlation with clinical pathological factors and response to chemotherapy. AB - OBJECTIVE: We investigated the correlation between ploidy or S-phase fraction (SPF) and the clinical pathological characteristics of patients with peritoneal carcinomatosis from ovarian cancer. We also assessed their relation with the in vivo and in vitro response to several chemotherapeutic agents. PATIENTS AND METHODS: Fifty-three patients with peritoneal carcinomatosis from ovarian cancer were enrolled. Frozen tumor tissue was dissociated by a detergent-trypsin method, and the resulting cell suspension was stained with RNase A and propidium iodide. Samples were then analyzed for ploidy and SPF by flow cytometry. Fresh tumor tissue was dissociated by enzymatic digestion, and cells were exposed to different concentrations of cisplatin, adriamycin, carboplatin, gemcitabine and taxol for 72 hours. In vitro drug sensitivity was then measured using the sulforhodamine B assay. RESULTS: No significant correlation was found between ploidy or SPF and patient characteristics, even though primary carcinomas were mainly hyperdiploid and more proliferative than recurrent tumors. SPF differed significantly among ploidy categories (P=0.01), and high SPF was associated with short-term survival (P=0.48). Patients with multiploid tumors were the most resistant to platinum-based chemotherapy, whereas those with hyperdiploid tumors were the most responsive. In vitro multiploid tumors were the least sensitive, while hypodiploid samples showed the highest sensitivity to the tested drugs. Sensitivity to adriamycin was significantly correlated with ploidy (P=0.03), whereas sensitivity to taxol was correlated with SPF (P=0.04). CONCLUSION: Our results indicate that ploidy and SPF could facilitate the choice of therapy for patients with peritoneal carcinomatosis. PMID- 29033585 TI - Clinical significance of SLP-2 in hepatocellular carcinoma tissues and its regulation in cancer cell proliferation, migration, and EMT. AB - Stomatin-like protein 2 (SLP-2) gene was significantly upregulated in a variety of tumor tissues and found to be involved in proliferation and metastasis. However, its functional role in hepatocellular carcinoma (HCC) remains unknown. Our study was to investigate the function of SLP-2 in cell proliferation, migration, invasion, cell apoptosis, and the process of epithelial-mesenchymal transition (EMT) in HCC. SLP-2 mRNA and protein expression in HCC were assessed by qRT-PCR and immunohistochemical staining. In vitro, we determined cell proliferation, migration, invasion, and cell apoptosis by CCK-8, transwell, and flow cytometry assays, respectively. SLP-2 was found to be upregulated at both mRNA and protein levels in HCC tissues, and its aberrant overexpression was linked with poor prognosis in patients with HCC. SLP-2 downregulation by siRNAs significantly suppressed cell proliferation, migration, invasion, anti-apoptosis abilities, and inhibited EMT process in vitro. In conclusion, the present study demonstrated the overexpression of SLP-2 in HCC tissues for the first time. As an effective regulator involved in cell proliferation, migration, invasion, cell apoptosis, and EMT, SLP-2 could be a novel therapeutic target for patients with HCC who express high levels of SLP-2. PMID- 29033587 TI - DNA hypermethylated status and gene expression of PAX1/SOX1 in patients with colorectal carcinoma. AB - BACKGROUND: Colorectal cancer (CRC) is a widespread and aggressive carcinoma with poor prognosis. Hypermethylation of specific gene promoters is an important mechanism of CRC. In this study, we investigated the hypermethylation of paired boxed gene 1 (PAX1) and sex-determining region Y-related high-mobility group box 1 (SOX1) genes in CRC tissues. METHODS: DNA methylation at cg2,09,07,471 PAX1 and cg0,66,75,478 SOX1 from 166 cancer tissues and 37 normal tissues from CRC patients were compared using datasets downloaded from The Cancer Genome Atlas. Quantitative methylation-specific polymerase chain reaction and assay of PAX1 and SOX1 were performed in dissected tumor and paracancerous tissues by surgery from 41 CRC patients. Quantitative reverse transcription polymerase chain reaction and immunohistochemistry assay were performed in both CRC and paired normal tissues to detect mRNA and protein expression, respectively. RESULTS: Methylation levels of PAX1/SOX1 genes were significantly higher in cancer tissues than in paired normal tissues. PAX1 and SOX1 genes were methylated in 28 (68.3%) of the 41 CRC samples but in 5 (12.2%) and 0 (0%) of the paired normal control samples (both P<0.001), respectively. Sensitivities and specificities of PAX1 methylation for the detection of cancer were 68.3% and 87.8%, respectively, whereas the corresponding values for SOX1 were 68.3% and 100%. However, the Kaplan-Meier analysis illustrated no significant difference in the overall survivals between patients with high and low methylation levels of SOX1 or PAX1 (P>0.5). In addition, the methylation level of PAX1/SOX1 was significantly higher in CRC patients with high TNM stage (TNM stage III/IV, 3.11+/-2.43) than those with low TNM stage (TNM stage I/II, 1.26+/-2.94, P<0.05). Relative RNA and protein expression levels of PAX1/SOX1 were both significantly lower in CRC tissues than in their paired normal tissue. CONCLUSIONS: This study is the first analysis of the methylation of PAX1/SOX1, which may be new biomarkers for CRC screening. PMID- 29033586 TI - Targeting the androgen receptor in triple-negative breast cancer: current perspectives. AB - Triple-negative breast cancer (TNBC) is an aggressive subtype associated with frequent recurrence and metastasis. Unlike hormone receptor-positive subtypes, treatment of TNBC is currently limited by the lack of clinically available targeted therapies. Androgen signaling is necessary for normal breast development, and its dysregulation has been implicated in breast tumorigenesis. In recent years, gene expression studies have identified a subset of TNBC that is enriched for androgen receptor (AR) signaling. Interference with androgen signaling in TNBC is promising, and AR-inhibiting drugs have shown antitumorigenic activity in preclinical and proof of concept clinical studies. Recent advances in our understanding of androgenic signaling in TNBC, along with the identification of interacting pathways, are allowing development of the next generation of clinical trials with AR inhibitors. As novel AR-targeting agents are developed and evaluated in clinical trials, it is equally important to establish a robust set of biomarkers for identification of TNBC tumors that are most likely to respond to AR inhibition. PMID- 29033588 TI - HOXD-AS1 functions as an oncogenic ceRNA to promote NSCLC cell progression by sequestering miR-147a. AB - Non-small cell lung cancer (NSCLC) is one of the most common malignancies worldwide, and it occurs at a higher frequency in males. HOXD-AS1, an important cancer-associated long noncoding RNA (lncRNA), contributes to the development and progression of several cancers. However, the exact roles of HOXD-AS1 in NSCLC progression are still unknown. Here, we investigated the underlying mechanisms of HOXD-AS1 in human NSCLC tissues. We found that lncRNA HOXD-AS1 was specifically upregulated (P<0.001) in NSCLC tissues and promoted cancer cell growth by targeting miR-147a. Moreover, HOXD-AS1 expression positively correlated with NSCLC clinical pathologic characteristics (tumor size, P=0.006; tumor stage, P=0.044; recurrence, P=0.031) and survival rate (P=0.003). HOXD-AS1 knockdown reduced proliferation and promoted apoptosis of NSCLC cells. The dual-luciferase reporter assay showed that HOXD-AS1 could negatively regulate the expression of miR-147a. miR-147a inhibition abrogated the effect of HOXD-AS1 knockdown on the proliferation and apoptosis of NSCLC cells. Furthermore, HOXD-AS1 positively regulated the expression of pRB (a tumor suppressor protein) in NSCLC cells. Taken together, our data indicated that HOXD-AS1 might be an oncogenic lncRNA that promotes proliferation of NSCLC and could be a therapeutic target in NSCLC. PMID- 29033589 TI - Yttrium-90 radioembolization of unresectable hepatocellular carcinoma - a single center experience. AB - PURPOSE: To determine the value of radioembolization (RE) for treatment of unresectable hepatocellular carcinoma (HCC). PATIENTS AND METHODS: Records of patients undergoing RE for unresectable HCC were retrospectively reviewed. Biochemical and clinical toxicities, imaging response (according to modified Response Evaluation Criteria In Solid Tumors), time-to-progression (TTP) and overall survival (OS) were analyzed. Data were stratified according to clinical and procedural parameters. Univariate and multivariate analyses were performed. RESULTS: One hundred and fifteen patients (89 male, mean age 69.3 years) underwent 158 REs (119 resin-, 39 glass-based) (Barcelona Clinic Liver Cancer [BCLC]-A: 6.1%, B: 33.9%, C: 60.0%). Median clinical follow-up was 5.9 (0.9-83.5) months. No grade 4 or 5 clinical toxicities were noted. Objective response rate was 35.6%; disease control rate was 76.7%. Median TTP of the treated part of the liver was 4 (0.9-45.4) months. 108/115 patients died during follow-up (median OS 8.4 [0.3-82.8] months after first RE [BCLC-A: 52.8 months, BCLC-B: 12.4 months, BCLC-C: 6.1 months]). On multivariate analysis, baseline Eastern Co-operative Oncology Group status <1, ascites prior to RE and best imaging response were predictors of longer OS. In BCLC-C patients, tumor burden, ascites prior to RE, baseline gamma-glutamyltransferase and Child-Pugh score were predictive of OS. CONCLUSIONS: RE is safe and effective in carefully selected patients suffering from HCC with a low complication rate. Low baseline Eastern Co-operative Oncology Group status and absence of ascites prior to RE are positive prognostic factors. PMID- 29033590 TI - Sitting time and occupational and recreational physical activity in relation to the risk of esophageal squamous cell carcinoma. AB - BACKGROUNDS: Sitting time and physical activity are associated with cancer risk; however, their roles in the development of esophageal squamous cell carcinoma (ESCC) are inconclusive. This study aimed to investigate the effects of total sitting time, occupational activity time (OAT), and recreational activity time (RAT) on ESCC risk. METHODS: Five hundred fifty-seven ESCC patients and 543 healthy controls matched by sex and age were recruited for this study. Conditional logistic regression was performed to obtain odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: Longer total sitting time (adjusted OR [AOR] 2.54, 95% CI 1.58-4.09) and longer OAT (AOR 2.90, 95% CI 2.11-3.99) were associated with higher ESCC risk, while longer RAT (AOR 0.27, 95% CI 0.19-0.38) could reduce ESCC risk. When the body mass index was incorporated into the multivariable models, the results changed slightly. In risk estimation according to sex, the same trends were observed in both men and women. Furthermore, longer RAT could completely or partially diminish the impacts of longer sitting time and OAT on increasing ESCC risk. CONCLUSION: Long sitting time and long OAT can increase the risk of ESCC, while long RAT is significantly associated with decreased ESCC risk. PMID- 29033591 TI - Clinicopathological features and prognoses in younger and older patients with gastric cancer. AB - BACKGROUND AND OBJECTIVES: Patients of different ages with gastric cancer (GC) have different clinicopathological features and prognoses. The results for different crowds are limited and controversial. The aim of this study was to investigate the differences in clinicopathological features and prognoses between younger and older GC patients. METHODS: From January 2007 to December 2011, a consecutive total of 112 GC patients under 41 years old and 358 GC patients over 69 years old who underwent gastrectomy for GC were recruited for this study. Then, the clinicopathological features and prognoses of these patients were analyzed comparatively. RESULTS: The gender, differentiation, carbohydrate antigen (CA) 19-9 and carcinoembryonic antigen (CEA) were significantly different between younger and older GC patients. There were more female and undifferentiated younger GC patients, and there were higher percentages of positive CA19-9 and CEA in older GC patients. The number of metastatic lymph nodes was an independent risk parameter for prognosis in younger patients, and the AJCC TNM (Tumor-Nodes-Metastases classification by American Joint Committee on Cancer) stage, radicality and tumor size were independent risk parameters for prognosis in older GC patients. Younger GC patients have a much better prognoses with lower monocyte-to-lymphocyte ratio and higher prognostic nutritional index than older patients. CONCLUSIONS: Younger GC patients have better immunity and nutritional status and better prognoses. The number of metastatic lymph nodes was the only risk parameter for prognosis in younger GC patients. We should take more effective treatments for younger GC patients with lymph nodes metastasis and pay more attention to the nutritional problems of older GC patients. PMID- 29033592 TI - Is this the end of cytotoxic chemotherapy in Merkel cell carcinoma? AB - Although cytotoxic chemotherapy has been used often in the management of Merkel cell carcinoma (MCC), its benefit remains uncertain. Despite being considered a chemosensitive disease, the duration of response is generally short, and the survival benefit is unclear. With the recent FDA approval of the anti-programmed cell death ligand 1 (PD-L1) antibody avelumab for patients with advanced MCC and the limited and controversial data on chemotherapy, it is important to put in perspective whether conventional chemotherapy should remain an option for these patients. Here, we review the evidence and controversies around chemotherapy in MCC as well as two recent studies on immunotherapy that changed the treatment paradigm for this disease. PMID- 29033593 TI - Expression profiling of adhesion proteins during prenatal and postnatal liver development in rats. AB - Culturing of primary hepatocytes and stem cell-derived hepatocytes faces a major issue of dedifferentiation due to absence of cell-cell adhesion and 3D structures. One of the possible ways to eliminate the problem of dedifferentiation is mimicking the expression pattern of adhesion proteins during the normal developmental process of liver cells. The purpose of this study was to evaluate the expression pattern of some key adhesion proteins, namely, E cadherin, N-cadherin, epithelial CAM (EpCAM), intracellular CAM (ICAM), collagen 1alpha1, alpha-actinin, beta-catenin and vimentin, in the liver tissue during prenatal and postnatal stages. Furthermore, differences in their expression between prenatal, early postnatal and adult stages were highlighted. Wistar rats were used to isolate livers at prenatal Day 14 and 17 as well as on postnatal Day 1, 3, 7 and 14. The liver from adult rats was used as control. Both conventional and real-time quantitative polymerase chain reactions (PCRs) were performed. For most of the adhesion proteins such as E-cadherin, N-cadherin, EpCAM, ICAM, collagen 1alpha1 and alpha-actinin, low expression was observed around prenatal Day 14 and an increasing expression was observed in the postnatal period. Moreover, beta-catenin and vimentin showed higher expression in the early prenatal period, which decreased gradually in the postnatal period, but still this low expression was considerably higher than that in the adult control rats. This basic knowledge of the regulation of expression of adhesion proteins during different developmental stages indicates their vital role in liver development. This pattern can be further studied and imitated under in vitro conditions to achieve better cell-cell interactions. PMID- 29033594 TI - Cost-effectiveness analysis of intravenous ferumoxytol for the treatment of iron deficiency anemia in adult patients with non-dialysis-dependent chronic kidney disease in the USA. AB - OBJECTIVE: Ferumoxytol has demonstrated superior efficacy compared with oral iron in treating iron deficiency anemia in chronic kidney disease (CKD) patients. However, an economic evaluation of ferumoxytol has not been conducted. The aim of this study was to analyze the cost-effectiveness of treating iron deficiency anemia in adult non-dialysis-dependent CKD patients with ferumoxytol as compared with oral iron, alone or in combination with erythropoietin-stimulating agents (ESAs). METHODS: A decision analytic model compared health outcomes and costs associated with 5-week outpatient treatment of adult non-dialysis-dependent CKD patients with ferumoxytol or oral iron, each as monotherapy or in combination with ESAs in the USA. Direct costs include the following: drug acquisition and administration, adverse events, and medical management. Efficacy was determined as mean increase in hemoglobin (g/dL) from baseline over the 5-week period. Clinical inputs were derived from patient-level data from two Phase III randomized controlled trials of ferumoxytol vs. oral iron in non-dialysis dependent CKD patients, and cost inputs from RED BOOKTM and Centers for Medicare and Medicaid Services data. Sensitivity analyses were performed to identify cost drivers and assess the stability of results. RESULTS: The 5-week treatment cost was $2,489, $5,216, $1,298, and $4,263 per patient for ferumoxytol, ferumoxytol with ESAs, oral iron, and oral iron with ESAs, respectively. The corresponding incremental costs per g/dL increase in hemoglobin, relative to ferumoxytol alone, were $398, $3,558, and $4,768 per patient. Efficacy was the main driver of cost effectiveness for all treatments. Adverse event and medical management costs were the principal drivers of oral iron monotherapy costs, while drug acquisition substantially contributed to the overall cost for the remaining treatments. CONCLUSION: These results suggest that ferumoxytol is a cost-effective treatment for iron deficiency anemia in non-dialysis-dependent CKD patients over a 5-week period compared with oral iron with or without ESAs. Ferumoxytol is more cost effective as monotherapy. PMID- 29033595 TI - Drug tendering: drug supply and shortage implications for the uptake of biosimilars. AB - Due to the continued increase in global spending on health care, payers have introduced a number of programs, policies, and agreements on pharmaceutical pricing in order to control costs. While incentives to increase generic drug use have achieved significant savings, other cost-containment measures are required. Tendering is a formal procedure to purchase medications using competitive bidding for a particular contract. Although useful for cost containment, tendering can lead to decreased competition in a given market. Consequently, drug shortages can occur, resulting in changes to treatment plans to products that may have lower efficacy and/or an increased risk of adverse effects. Therefore, care must be taken to ensure that tendering does not negatively impact patient care or the health care system. A large and expanding portion of total pharmaceutical expenditure is for biologic therapies. These agents have revolutionized the treatment of many diseases, including cancer and inflammatory conditions; however, patient access to biologic drugs can be limited due to availability, insurance coverage, and cost. As branded biologic therapies reach the end of patent- and data-protection periods, biosimilars are being approved as lower-cost alternatives. Biosimilars are products that are highly similar to the originator product with no clinically meaningful differences in terms of safety, purity, or potency. As more biosimilars receive regulatory approval and adoption increases, these therapies are expected to have an impact on global health care spending and should result in overall savings. However, the use of tendering to maximize the potential benefits of biosimilars has varied across the world. Therefore, the objectives of this review are to examine the drug-tendering process and its implications on drug supply and drug shortages, as well as to describe biosimilars and how tendering may influence their uptake. PMID- 29033596 TI - Metabolic syndrome remission after Roux-en-Y gastric bypass or sleeve gastrectomy. AB - BACKGROUND: Bariatric surgery is known to decrease weight and the prevalence of comorbidities, but there is little evidence on the differential effect of Roux-en Y gastric bypass (RYGB) and sleeve gastrectomy (SG) on the remission of the aggregate outcome, metabolic syndrome, 4 years after surgery. The purpose of this study was to determine the effectiveness of RYGB and SG on metabolic syndrome in veterans. METHODS: We retrospectively reviewed consecutive patients who underwent SG and RYGB at the Dallas Veterans Affairs Medical Center from 2003 to 2012. We determined the effect of both the operations on the remission of metabolic syndrome, its individual components, and medium-term morbidity and mortality. A sensitivity analysis was performed using propensity matching. RESULTS: A total of 266 patients were identified (159 RYGB and 107 SG) with 96% follow-up after 4 years. The mean age of the cohort was 51.4 years; the majority of patients were male (59%) and Caucasian (69%). RYGB patients had a greater mean body mass index and were more likely to have hypertension or hypertriglyceridemia. RYGB was associated with a similar metabolic syndrome remission to SG (37.6% vs 26.8%; P=0.09). The percentage of weight loss was 26.5% after RYGB and 10.8% after SG at 4 years post operation (P<0.01). Predictors of metabolic syndrome persistence were male gender, type 2 diabetes, and low high-density lipoprotein. While both the operations were associated with similar mortality (RYGB 4.4%, SG 2.8%; P=0.74), RYGB was associated with a greater rate of morbidity. CONCLUSION: RYGB and SG seem to be associated with similar remission rates of metabolic syndrome at 4 years. RYGB yields greater weight loss with greater medium-term complications. PMID- 29033597 TI - Reasons for discontinuation of GLP1 receptor agonists: data from a real-world cross-sectional survey of physicians and their patients with type 2 diabetes. AB - AIM: Nonadherence to glucagon-like peptide-1 receptor agonists (GLP1 RAs) is relatively common among patients with type 2 diabetes mellitus (T2DM). This study sought to identify reasons why patients discontinue GLP1 RAs. MATERIALS AND METHODS: Retrospective data from the Adelphi Diabetes Disease Specific Programme were used. Physicians managing patients with T2DM were surveyed via face-to-face interviews, and patients treated for T2DM were surveyed via self-completed questionnaires. Patient data were stratified by current versus prior GLP1 RA use. RESULTS: Physicians (n=443) most frequently reported inadequate blood glucose control (45.6%), nausea/vomiting (43.8%), and gastrointestinal (GI) side effects (36.8%) as reasons for GLP1 RA discontinuation. Patients (n=194) reported the GI related issues "Made me feel sick" (64.4%) and "Made me throw up" (45.4%) as their top reasons for discontinuation. The most common problems reported (excluding cost) for those currently using GLP1 RAs were "Prefer oral medication over injections" (patients 56%, physicians 32.6%), "Made me feel sick" (patients 38.1%, physicians 16.3%), and "Did not help lose weight" (patients 25.4%, physicians 18%). The most bothersome problems for patients globally (frequency reporting very/extremely bothersome) (excluding cost) were "Difficult to plan meals around" (55.6%), "Made me throw up" (51.6%), and "Caused weight gain" (50%). CONCLUSION: Both patients and physicians reported GI-related issues as a prominent factor, but disparities between patient experiences and physician perceptions were revealed, suggesting gaps in physician-patient communication. Understanding patients' expectations of GLP1 RAs and physicians' patient management practices may help increase GLP1 RA adherence and thereby potentially enhance diabetes care. PMID- 29033598 TI - Calcipotriene/betamethasone dipropionate for the treatment of psoriasis vulgaris: an evidence-based review. AB - While topical medications remain the cornerstone of the psoriasis treatment paradigm, they also come with the risk of multiple side effects. An alternative topical treatment option, calcipotriene or calcipotriol, is a vitamin D derivative that is thought to work by inhibiting keratinocyte proliferation and enhancing keratinocyte differentiation. Multiple studies have demonstrated its efficacy and safety in improving psoriasis when used in combination with topical corticosteroids. Given the effectiveness and side effect profile seen with this combination of topical steroid and calcipotriene, the US Food and Drug Administration approved a calcipotriene/betamethasone dipropionate product for use in psoriasis patients over the age of 12 in 2006. Our paper seeks to review clinical trial evidence of this combination medication and its use in the treatment of psoriasis vulgaris. While assessment of available evidence indicates that the topical medication is both safe and effective for the treatment of psoriasis vulgaris, addressing limitations of what is known, such as tolerability, adherence, and patient preference, of this combination drug in future high-impact studies is needed. PMID- 29033600 TI - Efficacy and safety of subcutaneous administration of lyophilized powder of alfa erythropoietin to maintain hemoglobin concentrations among hemodialysis patients. AB - BACKGROUND: Anemia associated with chronic kidney disease (CKD) often requires treatment with recombinant human erythropoietin (EPO). This study investigated the therapeutic equivalence between lyophilized powder and standard liquid EPO alfa by subcutaneous (SC) administration in hemoglobin maintenance among patients on hemodialysis. METHODS: This was a single-blinded, randomized, controlled, single-center, parallel-group study regarding the treatment of anemia among CKD patients on hemodialysis and being treated with stable doses of EPO alfa at least for 12 weeks. Anemic hemodialysis patients (n=63) received standard liquid or lyophilized powder EPO alfa for 24 weeks by SC administration. Achievement of the target hemoglobin concentration and safety and tolerability end points were documented. RESULTS: Baseline mean hemoglobin level was 11.1+/-0.7 g/dL using lyophilized powder EPO alfa and 11.2+/-0.9 g/dL using standard liquid EPO alfa. The baseline median dose of EPO alfa was 126.4 (interquartile range [IQR] 81.6 163.6) U/kg/week in the lyophilized powder EPO alfa group and 116.9 (IQR 76.5 144.1) U/kg/week in the standard liquid EPO alfa group. Treatment with SC lyophilized powder EPO alfa maintained mean hemoglobin and hematocrit concentrations after switching from standard liquid EPO alfa. No statistical significance between groups was reported for hemoglobin concentrations and weekly dose of EPO alfa during the study. No safety concerns were raised, including positive anti-EPO antibodies. CONCLUSION: In this study of anemia therapy among patients with end-stage renal disease on hemodialysis therapy, the SC injection of lyophilized powder EPO alfa was well tolerated and effectively maintained hemoglobin levels. Future studies of larger size and longer duration will be required to assess safety profiles. PMID- 29033599 TI - Primary ciliary dyskinesia: mechanisms and management. AB - Primary ciliary dyskinesia is a genetically heterogeneous disorder of motile cilia that is predominantly inherited in an autosomal-recessive fashion. It is associated with abnormal ciliary structure and/or function leading to chronic upper and lower respiratory tract infections, male infertility, and situs inversus. The estimated prevalence of primary ciliary dyskinesia is approximately one in 10,000-40,000 live births. Diagnosis depends on clinical presentation, nasal nitric oxide, high-speed video-microscopy analysis, transmission electron microscopy, genetic testing, and immunofluorescence. Here, we review its clinical features, diagnostic methods, molecular basis, and available therapies. PMID- 29033601 TI - Urine metabolic ratio of omeprazole in relation to CYP2C19 polymorphisms in Russian peptic ulcer patients. AB - BACKGROUND: CYP2C19 is known to be the main enzyme of biotransformation of proton pump inhibitors (PPIs), whereas the CYP2C19 gene is highly polymorphic. Genotyping and phenotyping together represent more reliable data about patient's CYP2C19 activity. PURPOSE: The aim of the study was to investigate the applicability of urine metabolic ratio of omeprazole for CYP2C19 phenotyping in Russian peptic ulcer patients with different CYP2C19 genotypes. PATIENTS AND METHODS: A total of 59 patients (19 men and 40 women) aged 18-91 years (mean age 53.5+/-15.1 years) from four Moscow clinics who were diagnosed with an endoscopically and histologically proven peptic ulcer or had a history of endoscopically and histologically proven ulcers in the past were recruited. Peripheral venous blood (6 mL) was collected for DNA extraction, and real-time polymerase chain reaction was performed for the analysis of CYP2C19*2G681A (rs4244285), CYP2C19*3G636A (rs4986893) and CYP2C19*17C-806T (rs12248560) polymorphisms. Urine samples of patients were collected in the morning between 6 am and 9 am, before food or drug intake, after at least 3 days of twice daily (b.i.d.) omeprazole intake. Omeprazole and 5-hydroxyomeprazole concentrations in the urine were measured using high-performance liquid chromatography with mass spectrometry. RESULTS: Of the 59 patients, there were 27 (45.8%) extensive metabolizers (EMs; CYP2C19*1/*1), 16 (27.1%) ultrarapid metabolizers (UMs; CYP2C19*1/*17, CYP2C19*17/*17), 14 (23.7%) intermediate metabolizers (IMs; CYP2C19*1/*2, CYP2C19*2/*17, CYP2C19*3/*17) and two (3.4%) poor metabolizers (PMs; CYP2C19*2/*2). Median metabolic ratio (25%-75% percentiles) were 1.03 (0.69 1.36) for EMs, 1.95 (1.33-2.68) for UMs, 1.40 (0.78-2.13) for IMs+PMs and 1.26 (0.82-1.99) for the whole sample. A statistically significant difference in metabolic ratio (Mann-Whitney U test) was found between UMs and EMs (p=0.001) and in the multiple comparison Kruskal-Wallis test (p=0.005). CONCLUSION: We found a connection between particular CYP2C19 genotypes and urine metabolic ratio of omeprazole in Russian peptic ulcer patients. This method needs to be improved as in our modification it worked mainly for UMs and did not differentiate all patients according to omeprazole biotransformation activity. PMID- 29033602 TI - Early in-hospital clinical deterioration is not predicted by severity of illness, functional status, or comorbidity. AB - BACKGROUND: Prior studies concentrated on unplanned intensive care unit (ICU) transfer to gauge deterioration occurring shortly following hospital admission. However, examining only ICU transfers is not ideal since patients could stabilize with treatment, refuse ICU admission, or not require ICU evaluation. To further explore etiologies of early clinical deterioration, we used rapid response team (RRT) activation within 48 hours of admission as an index of early clinical worsening. METHODS: A retrospective analysis of prospectively gathered admissions from the emergency department in an academic medical center was done. Data were reviewed independently by two physicians. We assessed severity of illness, functional status, comorbidity, the frequency of ICU and palliative care consultations, and changes in advance health care directives. RESULTS: Of 655 rapid responses (RRs) within the study period, 24.6% occurred within 48 hours of admission. Disease trajectory was the most frequent perceived reason for RRs (55.6% and 58.9%, reviewer 1 and 2, respectively) followed by medical error (15.6% and 15.2%). Acute physiology and chronic health evaluation II (APACHE-II) and modified early warning scores (MEWS) were higher at the time of RR compared to admission (p<0.0001). However, admission APACHE-II, MEWS, functional status, and comorbidity scores did not predict early RRs. One third of RRs resulted in ICU consultation and 95% were accepted. Palliative care consults were requested for 15%, the majority (65%) after RR and all resulting in advance directive change. CONCLUSION: Disease trajectory accounted for most clinical deterioration and medical error contributed to 15%. Our data suggest that it is difficult to predict early clinical deterioration as none of the measured parameters were associated with RRT activation. PMID- 29033603 TI - Application of the chronic constriction injury of the partial sciatic nerve model to assess acupuncture analgesia. AB - PURPOSE: To validate and explore the application of a rat model of chronic constriction injury to the partial sciatic nerve in investigation of acupuncture analgesia. METHODS: Chronic constriction injury of the sciatic nerve (CCI) and chronic constriction injury of the partial sciatic nerve (CCIp) models were generated by ligating either the sciatic nerve trunk or its branches in rats. Both models were evaluated via paw mechanical withdrawal latency (PMWL), paw mechanical withdrawal threshold (PMWT), nociceptive reflex-induced electromyogram (C-fiber reflex EMG), and dorsal root ganglion immunohistochemistry. Electroacupuncture (EA) was performed at GB30 to study the analgesic effects on neuropathic pain and the underlying mechanisms. RESULTS: Following ligation of the common peroneal and tibial nerves, CCIp rats exhibited hindlimb dysfunction, hind paw shrinkage and lameness, mirroring those of CCI rats (generated by ligating the sciatic nerve trunk). Compared to presurgery measurements, CCIp and CCI modeling significantly decreased the PMWL and PMWT. EA at GB30 increased the PMWL and PMWT in both CCI and CCIp rats. Calcitonin gene-related polypeptide and substance P expressions were apparently increased in both CCI and CCIp groups, but were not different from each other. The C-fiber reflex EMG of the biceps femoris was preserved in CCIp rats, but it could not be recorded in CCI rats on the 5th day after nerve ligation. The C-fiber reflex EMG was reduced at 0, 1, and 2 minutes after EA in CCIp rats, but only at 0 and 1 minute after EA in normal rats. CONCLUSION: The CCIp model is better than the CCI model for studying acupuncture analgesia on chronic neuropathic pain and the underlying mechanisms. PMID- 29033604 TI - Chronic pain and adult hippocampal neurogenesis: translational implications from preclinical studies. AB - Adult hippocampal neurogenesis (ahNG) occurs in the human brain. Adult generated neurons have been proposed to functionally contribute to relevant hippocampal functions such as learning and memory, mood regulation, and stress response. Learning, environmental enrichment, and physical exercise exert positive effects on ahNG. In parallel, these proneurogenic stimuli have been shown to ameliorate cognitive performance and/or depressive-like behavior in animal models. Conversely, aging, social isolation, and chronic stress exert negative effects on ahNG. Interestingly, reduction of hippocampal neurogenesis is suggested to potentially contribute to cognitive decline and mood alterations associated with aging and several neuropsychiatric disorders. Clinical observation demonstrates that patients affected by chronic pain often exhibit increased anxiety and depression, impaired cognitive flexibility, and memory capacities. As of today, our understanding of the molecular and cellular events that may underlie the comorbidity of chronic pain, depression, and cognitive impairment is limited. Herein we review recent preclinical data suggesting that chronic pain may induce profound changes in hippocampal plasticity, including reduced ahNG. We discuss the possibility that deregulated hippocampal neurogenesis in chronic pain may, at least in part, contribute to cognitive and mood alterations. Based on this hypothesis, the mechanisms underlying chronic pain-associated changes in hippocampal neurogenesis and related functions need to be addressed experimentally. One interesting feature of ahNG is its susceptibility to pharmacological modulation. Again, based on preclinical data we discuss the possibility that, at least in principle, distinct analgesic drugs commonly used in chronic pain states (typical and atypical opiates, alpha2delta ligands, and acetyl-l-carnitine) may differentially impact ahNG and that this aspect could be taken into account to reduce and/or prevent the potential risk of cognitive and emotional side effects in the clinical setting. PMID- 29033605 TI - Onabotulinum toxin A in the treatment of chronic migraine: patient selection and special considerations. AB - Discovered by serendipity, onabotulinum toxin A (BoNT-A) is the only US Food and Drug Administration-approved treatment for the prevention of chronic migraine (CM), one of the most disabling and burdensome human conditions. Its efficacy, safety and tolerability, proved by the largest and longest migraine therapeutic trial (the Phase III Research Evaluating Migraine Prophylaxis Therapy program [PREEMPT]), have been replicated by various real-life studies also in the presence of medication overuse. The benefit of BoNT-A prophylaxis is likely due to its ability to counteract peripheral and central nociceptive sensitization through reversible chemical denervation of pericranial sensitive afferents. Its efficacy increases considerably over time during long-term treatments, significantly varying among patients. The present review focuses on the state-of the art of current knowledge on putative instrumental, biochemical and clinical predictors of BoNT-A responsiveness, outlining the need for a thorough characterization of the full phenotypic migraine picture when trying to predict good responders. Available evidence suggests that disentangling the BoNT-A responsiveness puzzle requires 1) a reappraisal of easy-obtainable clinical details (eg, site and quality of pain, presence of cranial autonomic symptoms), 2) a proper stratification of patients with CM according to their headache frequency, 3) the evaluation of potential synergistic effects of concomitant prophylaxis/treatment and 4) a detailed assessment of modifiable risk factors evolution during treatment. PMID- 29033606 TI - The pain, depression, disability pathway in those with low back pain: a moderation analysis of health locus of control. AB - Low back pain (LBP) is common, impacts on the individual and society, and is a major health concern. Psychological consequences of LBP, such as depression, are significant barriers to recovery, but mechanisms for the development of depression are less well understood. One potential mechanism is the individual's health locus of control (HLoC), that is, perception of the level of control an individual has over their health. The objective of this study is to investigate the moderation effect of HLoC on the pain-depression-disability pathway in those with LBP. The design is a nested cross-sectional analysis of two existing cohorts of patients (n=637) who had previously consulted their primary care physician about LBP. Measures were taken of HLoC, pain intensity and interference, depression, disability, and bothersomeness. Structural Equation Modeling analysis was applied to two path models that examined the pain to depression to disability pathway moderated by the HLoC constructs of Internality and Externality, respectively. Critical ratio (CR) difference tests were applied to the coefficients using pairwise comparisons. The results show that both models had an acceptable model fit and pathways were significant. CR tests indicated a significant moderation effect, with stronger pathway coefficients for depression for those who report low Internality (beta 0.48), compared to those with high Internality (beta 0.28). No moderation effects were found within the Externality model. HLoC Internality significantly moderates the pain-depression pathway in those with LBP, meaning that those who have a low perception of control report greater levels of depression. HLoC may signify depression among people with LBP, and could potentially be a target for intervention. PMID- 29033607 TI - Profiling of gene expression regulated by 17beta-estradiol and tamoxifen in estrogen receptor-positive and estrogen receptor-negative human breast cancer cell lines. AB - One area of great importance in breast cancer (BC) research is the study of gene expression regulated by both estrogenic and antiestrogenic agents. Although many studies have been performed in this area, most of them have only addressed the effects of 17beta-estradiol (E2) and tamoxifen (TAM) on MCF7 cells. This study aimed to determine the effect of low doses of E2 and TAM on the expression levels of 84 key genes, which are commonly involved in breast carcinogenesis, in four BC cell lines differentially expressing estrogen receptor (ER) alpha and HER2 (MCF7, T47D, BT474, and SKBR3). The results allowed us to determine the expression patterns modulated by E2 and TAM in ERalpha+ and ERalpha- cell lines, as well as to identify differences in expression patterns. Although the MCF7 cell line is the most frequently used model to determine gene expression profiles in response to E2 and TAM, the changes in gene expression patterns identified in ERalpha+ and ERalpha- cell lines could reflect distinctive properties of these cells. Our results could provide important markers to be validated in BC patient samples, and subsequently used for predicting the outcome in ERalpha+ and ERalpha- tumors after TAM or hormonal therapy. Considering that BC is a molecularly heterogeneous disease, it is important to understand how well, and which cell lines, best model that diversity. PMID- 29033609 TI - Clinical implications of six inflammatory biomarkers as prognostic indicators in Ewing sarcoma. AB - Cancer-related systemic inflammation responses have been correlated with cancer development and progression. The prognostic significance of several inflammatory indicators, including neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), Glasgow Prognostic Score (GPS), C-reactive protein to albumin ratio (CRP/Alb ratio), lymphocyte-monocyte ratio (LMR), and neutrophil-platelet score (NPS), were found to be correlated with prognosis in several cancers. However, the prognostic role of these inflammatory biomarkers in Ewing sarcoma has not been evaluated. This study enrolled 122 Ewing patients. Receiver operating characteristic (ROC) analysis was generated to determine optimal cutoff values; areas under the curves (AUCs) were assessed to show the discriminatory ability of the biomarkers; Kaplan-Meier analysis was conducted to plot the survival curves; and Cox multivariate survival analysis was performed to identify independent prognostic factors. The optimal cutoff values of CRP/Alb ratio, NLR, PLR, and LMR were 0.225, 2.38, 131, and 4.41, respectively. CRP/Alb ratio had a significantly larger AUC than NLR, PLR, LMR, and NPS. Higher levels of CRP/Alb ratio (hazard ratio [HR] 2.41, P=0.005), GPS (HR 2.27, P=0.006), NLR (HR 2.07, P=0.013), and PLR (HR 1.85, P=0.032) were significantly correlated with poor prognosis. As the biomarkers had internal correlations, only the CRP/Alb ratio was involved in the multivariate Cox analysis and remained an independent prognostic indicator. The study demonstrated that CRP/Alb ratio, GPS, and NLR were effective prognostic indicators for patients with Ewing sarcoma, and the CRP/Alb ratio was the most robust prognostic indicator with a discriminatory ability superior to that of the other indicators; however, PLR, LMR, and NPS may not be suitable as prognostic indicators in Ewing sarcoma. PMID- 29033610 TI - A pilot randomized controlled clinical trial of second uterine curettage versus usual care to determine the effect of re-curettage on patients' need for chemotherapy among women with low risk, nonmetastatic gestational trophoblastic neoplasm in Urmia, Iran. AB - OBJECTIVE: The objective of this study was to determine if second curettage was associated with a decreased need for the number of chemotherapy treatments compared to usual care. METHODS: A pilot randomized controlled clinical trial was designed at Motahhari Referral Hospital in 2014. Fifty-two patients with low risk, nonmetastatic gestational trophoblastic neoplasm were assigned randomly to two arms. The interventional arm included a repeat uterine curettage, and the control group received standard care (chemotherapy). All participants were followed periodically over 6 months. Primary outcome was defined as the number of chemotherapy courses in each arm. Student's t-test and receiver operator characteristics (ROC) curve were applied for statistical analysis as appropriate. RESULTS: Fifty percent of participants who underwent re-curettage did respond to intervention with no further chemotherapy after 6 months of follow-up. The intervention arm had higher number of remissions without chemotherapy compared to those who received usual care. In the subgroup analysis, the ROC curve could predict the re-curettage treatment response by beta human chorionic gonadotropin (BhCG) level significantly. No complications were reported in the intervention arm. CONCLUSION: Second curettage is an alternative effective procedure to decrease the need for chemotherapy among patients with low risk, nonmetastatic gestational trophoblastic neoplasm. Further clinical trials with larger sample size may be needed to determine the effective role of second curettage among patients. PMID- 29033608 TI - Is the prognostic significance of O6-methylguanine- DNA methyltransferase promoter methylation equally important in glioblastomas of patients from different continents? A systematic review with meta-analysis. AB - BACKGROUND: O6-methylguanine-DNA methyltransferase (MGMT) is an independent predictor of therapeutic response and potential prognosis in patients with glioblastoma multiforme (GBM). However, its significance of clinical prognosis in different continents still needs to be explored. PATIENTS AND METHODS: To explore the effects of MGMT promoter methylation on both progression-free survival (PFS) and overall survival (OS) among GBM patients from different continents, a systematic review of published studies was conducted. RESULTS: A total of 5103 patients from 53 studies were involved in the systematic review and the total percentage of MGMT promoter methylation was 45.53%. Of these studies, 16 studies performed univariate analyses and 17 performed multivariate analyses of MGMT promoter methylation on PFS. The pooled hazard ratio (HR) estimated for PFS was 0.55 (95% CI 0.50, 0.60) by univariate analysis and 0.43 (95% CI 0.38, 0.48) by multivariate analysis. The effect of MGMT promoter methylation on OS was explored in 30 studies by univariate analysis and in 30 studies by multivariate analysis. The combined HR was 0.48 (95% CI 0.44, 0.52) and 0.42 (95% CI 0.38, 0.45), respectively. CONCLUSION: In each subgroup divided by areas, the prognostic significance still remained highly significant. The proportion of methylation in each group was in inverse proportion to the corresponding HR in the univariate and multivariate analyses of PFS. However, from the perspective of OS, compared with data from Europe and the US, higher methylation rates in Asia did not bring better returns. PMID- 29033611 TI - Stable ischemic heart disease in women: current perspectives. AB - Cardiovascular disease is the leading cause of death in women accounting for 1 in every 4 female deaths. Pathophysiology of ischemic heart disease in women includes epicardial coronary artery, endothelial dysfunction, coronary vasospasm, plaque erosion and spontaneous coronary artery dissection. Angina is the most common presentation of stable ischemic heart disease (SIHD) in women. Risk factors for SIHD include traditional risks such as older age, obesity (body mass index [BMI] >25 kg/m2), smoking, hypertension, dyslipidemia, cerebrovascular and peripheral vascular disease, sedentary lifestyle, family history of premature coronary artery disease, metabolic syndrome and diabetes mellitus, and nontraditional risk factors, such as gestational diabetes, insulin resistance/polycystic ovarian disease, pregnancy-induced hypertension, pre eclampsia, eclampsia, menopause, mental stress and autoimmune diseases. Diagnostic testing can be used effectively to risk stratify women. Guidelines directed medical therapy including aspirin, statins, beta-blocker therapy, calcium channel blockers and ranolazine should be instituted for symptom and ischemia management. Despite robust evidence regarding the adverse outcomes seen in women with ischemic heart disease, knowledge gaps exist in several areas. Future research needs to be directed toward a greater understanding of the role of nontraditional risk factors for SIHD in women, gaining deeper insights into the sex differences in therapeutic effects and formulating a sex-specific algorithm for the management of SIHD in women. PMID- 29033612 TI - Increased detection of precancerous cervical lesions with adjunctive dynamic spectral imaging. AB - OBJECTIVE: To validate, in US community-based colposcopy clinics, previous reports of increased detection of high-grade cervical intraepithelial neoplasia (CIN2+) with biopsies selected using dynamic spectral imaging (DSI) mapping after standard colposcopy. STUDY DESIGN: Cross-sectional observational study of 26 colposcopists across nine clinics recruiting consecutive colposcopy patients. Standard assessment with biopsy selections was completed before seeing the DSI map which was subsequently interpreted and used for additional biopsies per clinical judgment. Primary measure was the number of women with CIN2+ detected by DSI-assisted biopsies, over those detected by standard colposcopy biopsies. RESULTS: A total of 887 women were recruited. After exclusions, 881 women and 1,189 biopsies were analyzed. Standard biopsy detected 78 women with CIN2+ and DSI-assisted biopsies another 34, increasing the detection rate from 8.85% to 12.71% (p=0.00016). This was achieved with 16.16% of DSI-assisted biopsies finding CIN2+ compared to 13.24% for the preceding standard biopsies. For secondary specificity analysis, 431 women had only 24). The ODSI showed a significant association with the ESS (Spearman's rho: 0.67, P < 0.001) and with the FOSQ (Spearman's rho: -0.52, P < 0.001). The ODSI 1 item (assessing sleepiness in active situations) was borderline significantly correlated with the ESS (beta = 0.14; 95% confidence interval [CI], -0.01 to 0.29; P = 0.069). ODSI 2 item (sleepiness in passive situations) was correlated with the ESS (beta = 1.65; 95% CI, 1.32 to 1.98; P < 0.001). Both ODSI 1 (beta = -0.15; 95% CI, -0.24 to -0.07; P < 0.001) and ODSI 2 (beta = -0.35; 95% CI, -0.55 to 0.16; P < 0.001) were significantly correlated with the FOSQ. CONCLUSION: The ODSI is a suitable measure of sleepiness and is appropriate for usage in clinical care in older adults. PMID- 29033618 TI - Schizophrenia and sleep disorders: links, risks, and management challenges. AB - Schizophrenia is a major psychiatric disorder that has a massive, long-lasting negative impact on the patients as well as society. While positive symptoms (i.e., delusions and hallucinations), negative symptoms (i.e., anhedonia, social withdrawal), and cognitive impairments are traditionally considered the most prominent features of this disorder, the role of sleep and sleep disturbances has gained increasing prominence in clinical practice. Indeed, the vast majority of patients with schizophrenia report sleep abnormalities, which tend to precede illness onset and can predict an acute exacerbation of psychotic symptoms. Furthermore, schizophrenia patients often have a comorbid sleep disorder, including insomnia, obstructive sleep apnea, restless leg syndrome, or periodic limb movement disorder. Despite accumulating data, the links between sleep disorders and schizophrenia have not been thoroughly examined, in part because they are difficult to disentangle, as numerous factors contribute to their comorbidity, including medication status. Additionally, sleep disorders are often not the primary focus of clinicians treating this population, despite studies suggesting that comorbid sleep disorders carry their own unique risks, including worsening of psychotic symptoms and poorer quality of life. There is also limited information about effective management strategies for schizophrenia patients affected by significant sleep disturbances and/or sleep disorders. To begin addressing these issues, the present review will systematically examine the literature on sleep disorders and schizophrenia, focusing on studies related to 1) links between distinct sleep disorders and schizophrenia; 2) risks unique to patients with a comorbid sleep disorder; and 3) and management challenges and strategies. PMID- 29033620 TI - Comparative safety of intravenous Ferumoxytol versus Ferric Carboxymaltose for the Treatment of Iron Deficiency Anemia: rationale and study design of a randomized double-blind study with a focus on acute hypersensitivity reactions. AB - BACKGROUND: Intravenous (IV) iron is often used to treat iron deficiency anemia in patients who are unable to tolerate or are inadequately managed with oral iron. However, IV iron treatment has been associated with acute hypersensitivity reactions. The comparative risk of adverse events (AEs) with IV iron preparations has been assessed by a few randomized controlled trials, which are most often limited by small patient numbers, which lack statistical power to identify differences in low-frequency AE such as hypersensitivity reactions. MATERIALS AND METHODS: Ferumoxytol versus Ferric Carboxymaltose for the Treatment of Iron Deficiency Anemia (FIRM) is a randomized, double-blind, international, multicenter, Phase III study designed to compare the safety of ferumoxytol and ferric carboxymaltose (FCM). The study includes adults with hemoglobin <12.0 g/dL (females) or <14.0 g/dL (males), transferrin saturation <=20% or ferritin <=100 ng/mL within 60 days of dosing, and a history of unsatisfactory or nontolerated oral iron therapy or in whom oral iron therapy is inappropriate. Patients are randomized (1:1) to ferumoxytol 510 mg or FCM 750 mg, each given intravenously on days 1 and 8. Primary end points are the incidence of moderate-to-severe hypersensitivity reactions, including anaphylaxis, and moderate-to-severe hypotension. All potential hypersensitivity and hypotensive reactions will be adjudicated by a blinded, independent Clinical Events Committee. A secondary safety end point is the composite frequency of moderate-to-severe hypersensitivity reactions, including anaphylaxis, serious cardiovascular events, and death. Secondary efficacy end points include mean change in hemoglobin and mean change in hemoglobin per milligram of iron administered from baseline to week 5. Urinary excretion of phosphorus and the occurrence of hypophosphatemia after IV iron administration will be examined as well as the mechanisms of such hypophosphatemia in a substudy. CONCLUSION: FIRM will provide data on the comparative safety of ferumoxytol and FCM, two IV iron preparations with similar dosing schedules, focusing on moderate-to-severe hypersensitivity reactions, including anaphylaxis, and moderate-to-severe hypotension. The study plans to enroll 2000 patients and is expected to complete in 2017. PMID- 29033622 TI - Changing physician perspectives on complementary and alternative medicine: the need for a top-down approach. PMID- 29033621 TI - Nonarteritic anterior ischemic optic neuropathy: cause, effect, and management. AB - Nonarteritic anterior ischemic optic neuropathy (NAION) is the most common form of ischemic optic neuropathy and the second most common optic neuropathy. Patients are generally over the age of 50 years with vasculopathic risk factors (eg, diabetes mellitus, hypertension, and obstructive sleep apnea). The exact mechanism of NAION is not fully understood. In addition, several treatment options have been proposed. This article summarizes the current literature on the diagnosis, treatment, and management of NAION. PMID- 29033623 TI - Impact of supplemental training programs on improving medical students' confidence in providing diabetes self-management education and support. AB - BACKGROUND/PURPOSE: The purpose of this study was to evaluate the effectiveness of supplemental diabetes-related training modalities and volunteer activities in increasing first-year medical students' knowledge/comfort in providing diabetes self-management education and support (DSMES) to patients. METHODS: A group of medical students developed supplemental diabetes-related training/volunteer programs. The training modalities included an optional 7-session interprofessionally taught Diabetes Enrichment Elective and a 3-hour endocrinologist-led training session intended to prepare students for involvement in an inpatient DSMES volunteer program. The volunteer program provided the students with the opportunity to provide DSMES to patients with diabetes admitted to an academic medical center. Those participating in any of the stated programs were compared to those with no such training regarding confidence in providing DSMES using an optional online survey. The results were analyzed by using Mann Whitney U test and descriptive analyses. RESULTS: A total of 18 first-year medical students responded to the optional survey with a response rate of ~30% (10 of 33) among participants in any training/volunteer program. First-year medical students who attended any of the offered optional programs had statistically significant higher comfort level in 4 of the 6 areas assessed regarding providing DSMES compared with those with no such training (p<0.05), with medium to large effect size (r=0.48-0.59). CONCLUSION: This study suggests that the supplemental preclerkship diabetes-specific training modalities/volunteer programs can provide benefit in providing medical students with practical knowledge while improving their confidence in providing DSMES to patients with diabetes. PMID- 29033624 TI - Advances in medical education and practice: what millennial medical students say about flipped learning. PMID- 29033625 TI - The Salford Lung Study: a pioneering comparative effectiveness approach to COPD and asthma in clinical trials. AB - The Salford Lung Study (SLS) of patients with asthma and chronic obstructive pulmonary disease (COPD) is a practical, community-based, randomized, open-label pragmatic study on the efficacy and safety of the once-daily dry powder inhaler that combines the inhaled corticosteroid fluticasone furoate (FF) with the long acting beta2 agonist vilanterol (VI). The asthma component of the SLS is not yet reported but the COPD component, done over a 12-month period, found a statistically significant 8.4% reduction in COPD exacerbations when compared to usual care. No differences in adverse events, including serious adverse events and pneumonia, were noted. The importance of real-world findings, such as those found in the SLS COPD trial with inhaled FF/VI, is discussed in comparison to classical randomized controlled trials (RCTs) with inhaled FF/VI in COPD patients. The real-world, community-based pragmatic RCT like the SLS provides additional generalizable data with direct clinical applicability and potential usefulness in the development of practice guidelines. The results from the SLS, along with those of large and small RCTs, are supportive of the use of once-daily FF/VI in COPD maintenance therapy. PMID- 29033626 TI - The presence of obesity paradox in Greek patients with chronic heart failure. AB - PURPOSE: To investigate the effect of body mass index (BMI) values on 1- and 2 year mortality rates in patients with chronic heart failure (HF). PATIENTS AND METHODS: We conducted a retrospective cohort study of 112 patients with confirmed HF who visited the HF outpatient unit of a tertiary hospital of Athens, Greece, during a 5-month period (December 2012 - April 2013). These patients were assigned to four groups based on their BMI category. Data collection was carried out through a review of the medical patient records and the filling in of a structured questionnaire, including information on the demographic and clinical patient variables. Additionally, 1- and 2-year patient mortality was recorded. The statistical significance was two-tailed, and p-values of less than 0.05 were considered significant. The statistical analysis was performed with Mann-Whitney U test, chi2 test, and Student's t-test using the SPSS software (IBM SPSS 21.0 for Windows). RESULTS: Obese patients had significantly lower 1-year (13% vs 34.6%, p=0.039) and 2-year (4% vs 21.4%, p=0.022) mortality rates compared with those with normal BMI values. Additionally, we found clinically and not statistically significant lower mortality in overweight and obese patients, when compared with normal BMI and overweight patients, respectively. CONCLUSION: Obesity paradox seems to be present in our study, translating to significantly lower long-term mortality rates of obese patients compared to those with normal BMI. The significantly higher left ventricular ejection fraction and hematocrit levels among obese HF patients could justify our study findings. Further research is needed due to the inherent weaknesses of BMI and the other study limitations. PMID- 29033628 TI - Neuro-Psycho-Behcet or Neuropsychiatric Behcet Disease: A Modified Name for an Old Disease. PMID- 29033627 TI - Impact of primary care exercise referral schemes on the health of patients with obesity. AB - Primary care exercise referral schemes (ERSs) are a potentially useful setting to promote physical activity (PA). It is not established, however, whether interventions to increase PA, such as ERSs, have differing health outcomes according to the participants' body mass index (BMI). This paper summarizes evidence for the impact of primary care ERSs on the health of people with obesity and reports findings of a reanalysis of the EMPOWER study, providing the first data to report differential outcomes of ERSs by BMI category. Our literature review revealed a paucity of published data. A 2011 Health Technology Assessment review and 2015 update were identified, but normal-weight participants were neither excluded nor were results stratified by weight in the included studies. A study of the effect of exercise referral in overweight women reported a significantly greater increase in PA levels in the ERS group than the control group at 3 months. Reanalysis of the EMPOWER study data showed a significant improvement in PA at 3 months in both obese and overweight/normal BMI groups, with the effect size attenuated to 6 months. There was no significant difference from baseline to 6 months in blood pressure for either BMI category. At 6 months, there was a significant decrease in weight from baseline for the obese category. Comparison of crude mean differences between BMI groups revealed a significant mean difference in PA at 3 months favoring the overweight/normal BMI group, but not at 6 months. There were no further significant differences in unadjusted or adjusted mean differences for other outcomes at follow-up. We report some evidence of a differential impact of ERS on PA by BMI category. However, the effect of ERSs in primary care for patients with obesity remains unclear due to the small number of published studies that have reported outcomes by BMI category. Further research is needed. PMID- 29033629 TI - Electroconvulsive Therapy in the Treatment of Mood Disorders: One-Year Follow-up. AB - INTRODUCTION: Electroconvulsive therapy (ECT) is known to be an effective option in the treatment of mood disorders, especially resistant depression. However, the remission achieved by ECT was reported to be not long lasting enough. The aim of the present study was to investigate the relapse/recurrence rates and associated risk factors during the first year after ECT in patients diagnosed with mood disorders. METHODS: In a naturalistic observation, patients diagnosed with unipolar depressive disorder or a depressive episode of bipolar disorder and who had achieved remission by ECT were followed up for at least one year. The patients were evaluated with structured interviews during the follow-up period. The relapse/recurrence rates were the primary outcome measurements, while hospitalization and suicide attempts were the secondary outcome measurements. The remitted and non-remitted patients were compared regarding the clinical features, ECT, and pharmacological variables. RESULTS: Fifty of 62 patients who had achieved remission with ECT completed the one year follow-up period. Thirty-three patients (66%) had relapse/recurrence, while 17 (34%) patients remained in remission. The relapse rates were similar in patients with unipolar depression and bipolar disorders. The mean number of ECT sessions was higher in relapsed patients with bipolar disorders. Multiple episodes were more frequent in non remitted patients with unipolar depression. Comorbid psychiatric diagnosis was higher in non-remitted patients with unipolar and bipolar disorders. CONCLUSION: The relapse/recurrence rate was found to be fairly high in the first year of follow-up in patients who had achieved remission with ECT. ECT decisions should be made carefully in patients with comorbid psychiatric diagnosis and multiple episodes as these are more risky. The ECT application procedure and successive maintenance treatment (maintenance ECT, pharmacotherapy, and psychotherapy) should be planned to sustain the remission for patients with mood disorders in long-term follow-up. PMID- 29033630 TI - Impact of Topiramate on Rat Phrenic Nerve-Hemidiaphragm Preparations. AB - INTRODUCTION: Topiramate has a negative modulatory effect on voltage-gated ion channels involved in neuromuscular junction transmission. To investigate the potential impact of topiramate on muscle contraction, phrenic nerve-hemidiaphragm preparations were used as a neuromuscular junction model. METHODS: Phrenic nerve hemidiaphragm preparations were isolated from rats and were mounted in oxygenated Krebs solution. Preparations were stimulated in the presence of topiramate and phenytoin with a rectangular pulse at 0.1 Hertz, 0.3 miliseconds, and 3 miliseconds of duration, forming indirect, direct single, and tetanic muscle contractions, respectively. The expressed tension was isometrically recorded via a force displacement transducer on a polygraph. RESULTS: Topiramate and phenytoin directly and indirectly reduced contractions in a time-dependent manner. By contrast, topiramate, but not phenytoin, showed an excitatory effect on contraction in tetanic potentiation. CONCLUSION: To our knowledge, our study is the first to show the effects of topiramate on muscle contraction and neuromuscular junction transmission. Topiramate needs to be used with caution in patients with muscle weakness and respiratory problems. PMID- 29033631 TI - Validity and Reliability of the Turkish Version of the DSM-5 Posttraumatic Stress Symptom Severity Scale-Child Form. AB - INTRODUCTION: This study assessed the validity and reliability of the Turkish version of the DSM-5 Posttraumatic Stress Symptom Severity Scale-Child Form for use among the Turkish population. METHODS: The study group consisted of 30 patients that had been treated in a child psychiatry unit and diagnosed with posttraumatic stress disorder and 83 healthy volunteers that were attending middle or high school during the study period. For reliability analyses, the internal consistency coefficient and the test-retest correlation coefficient were measured. For validity analyses, the exploratory factor analysis and correlation analysis with the Child Posttraumatic Stress Reaction Index for concurrent validity were measured. RESULTS: The Cronbach's alpha (the internal consistency coefficient) of the scale was 0.909, and the test-retest correlation coefficient was 0.663. One factor that could explain 58.5% of the variance was obtained and was congruent with the original construct of the scale. As for concurrent validity, the scale showed high correlation with the Child Posttraumatic Stress Reaction Index. CONCLUSION: It was concluded that the Turkish version of the DSM 5 Posttraumatic Stress Symptom Severity Scale-Child Form can be used as a valid and reliable tool. PMID- 29033632 TI - Review of Viral Encephalitis Cases Seen at a Tertiary Care Center in Turkey: Focus on Herpes Simplex Type 1. AB - INTRODUCTION: The objective of this study was to determine the incidence of herpes simplex encephalitis (HSE), known as the most common, potentially mortal, and treatable cause of sporadic encephalitis, in a sample Turkish population. METHODS: The demographic, clinical, laboratory, imaging, electrophysiology, and polymerase chain reaction (PCR) DNA results of patients examined with a pre diagnosis of encephalitis were retrospectively examined. RESULTS: A total of 68 patients were included in the study. The most common presenting symptom was altered behavior (67.6%), while temporal T2 hyperintensity was determined in the magnetic resonance imaging (MRI) of 27.9% of the patients and electroencephalography (EEG) abnormalities were determined in 66.2% of the patients. Lymphocytic pleocytosis was determined in the cerebrospinal fluid (CSF) in 35 patients. Fifty-seven patients had been diagnosed with viral encephalitis, 3 with bacterial meningitis, 3 with tuberculous meningitis, 2 with sporadic Creutzfeld-Jakob disease, 2 with acute disseminating encephalomyelitis, and 1 with Brucella encephalitis. Seven (10.2%) cases of viral encephalitis were found to be positive for herpes simplex virus (HSV) DNA by PCR. CONCLUSION: Viral encephalitis is the most common cause of infectious encephalitis; however, other atypical causes should also be noted. Negative PCR results for HSV DNA should not exclude the need for antiviral therapy in patients with a strong pre-diagnosis of HSE because diagnostic modalities, including PCR, may fail in acute settings and HSE remains the sole treatable cause of infectious encephalitis. PMID- 29033633 TI - Measuring Alexithymia via Trait Approach-I: A Alexithymia Scale Item Selection and Formation of Factor Structure. AB - INTRODUCTION: It is not clear in the literature whether available instruments are sufficient to measure alexithymia because of its theoretical structure. Moreover, it has been reported that several measuring instruments are needed to measure this construct, and all the instruments have different error sources. The old and the new forms of Toronto Alexithymia Scale are the only instruments available in Turkish. Thus, the purpose of this study was to develop a new scale to measure alexithymia, selecting items and constructing the factor structure. METHODS: A total of 1117 patients aged from 19 to 82 years (mean = 35.05 years) were included. A 100-item pool was prepared and applied to 628 women and 489 men. Data were analyzed using Explanatory Factor Analysis, Confirmatory Factor Analysis, and Item Response Theory and 28 items were selected. The new form of 28 items was applied to 415 university students, including 271 women and 144 men aged from 18 to 30 (mean=21.44). RESULTS: The results of Explanatory Factor Analysis revealed a five-factor construct of "Solving and Expressing Affective Experiences," "External Locused Cognitive Style," "Tendency to Somatize Affections," "Imaginary Life and Visualization," and "Acting Impulsively," along with a two-factor construct representing the "Affective" and "Cognitive" components. All the components of the construct showed good model fit and high internal consistency. The new form was tested in terms of internal consistency, test-retest reliability, and concurrent validity using Toronto Alexithymia Scale as criteria and discriminative validity using Five-Factor Personality Inventory Short Form. CONCLUSION: The results showed that the new scale met the basic psychometric requirements. Results have been discussed in line with related studies. PMID- 29033634 TI - Sudden Unexpected Death in Epilepsy: A Retrospective Autopsy Study of 112 Epileptic Patients. AB - INTRODUCTION: Sudden unexpected deaths comprise the most important and worthy investigation case profiles in both neurology and forensic medicine. Epilepsy, which is one of the neuropathological causes of sudden unexpected deaths, is an important disorder having mysterious aspects. The aim of this study is to make common the points of view between neurology and forensic medicine experts and to discuss the features of the findings together with the related clinical hypotheses, leading to the differential diagnosis of sudden unexpected death in epilepsy (SUDEP) by presenting autopsy findings and available medical data of patients who had a prior diagnosis of epilepsy. METHODS: In Istanbul, the cases of 20334 autopsied patients who were referred to The Ministry of Justice Council of Forensic Medicine between 2007 and 2011 were identified from the complete forensic autopsy data of the city and were retrospectively reviewed. Patients who had a prior diagnosis of epilepsy were included. Both descriptive and inferential statistical analyses were performed through the parameters of demographical data, physical properties, incident features, macroscopic-microscopic autopsy findings, and cause of death initially for all cases and then separately for SUDEP cases. RESULTS: Among the 20334 patients, 112 were determined to have a prior diagnosis of epilepsy. A possible macroscopic and/or microscopic epileptic focus was present in 23 (20.5%) of these 112 cases. The cause of death was determined to be SUDEP in 40 (35.7%) cases, while it could not be determined in 28 (25%) cases. Among patients whose death cause was considered as SUDEP, the male-to-female ratio was 1.1:1, while the mean age was 31.5+/-13.9 years in males and 29.6+/ 12.9 years in females. The presence of hypertrophy and myocardial scar tissue findings in the microscopic examination were significantly more frequent among patients determined to have died from cardiovascular diseases compared to patients in the SUDEP group (p=0.001 for each finding). Besides, in 40 SUDEP cases, 38 (95%) patients underwent toxicological analysis and no antiepileptic agent was detected in 21 (55.3%) of these. CONCLUSION: It can be concluded that there is equality in gender distribution among SUDEP patients, that the young adult population has a slightly increased risk for SUDEP, and that the inconsistent use of antiepileptic medicines is a greater risk factor for SUDEP than polytherapy. Besides, it is important to emphasize that all clinical and postmortem parameters together should be considered for the differential diagnosis of SUDEP, particularly with cardiovascular diseases. PMID- 29033635 TI - Evaluation of 5-HTTLPR Gene Polymorphism and Resilience Components on the Development of Psychopathology in Adolescent Sexual Abuse Cases. AB - INTRODUCTION: More than one-fourth adolescents are exposed to unexpected frightening experiences and traumas until adulthood. In this study, we aimed to determine the potential role of serotonin transporter (5-HTT) gene polymorphism regarding resilience factors in the symptom variability of individuals exposed to sexual abuse. METHODS: Adolescents aged 11-17 years, who were admitted to the Marmara University Child Psychiatry Outpatient Clinic Forensic division with sexual abuse experience history, were informed about the research, and volunteers were included in the study. Turkish versions of "Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime (K-SADS-PL)" was used to assess the psychopathology and functionality. The evaluation of participants also included self-reports based on "Eysenck Personality Inventory" and "Ways of Coping Inventory" for reflecting the resilience domain. RESULTS: The sample included 16 girls (88.9%) and 2 boys (11.1%), and the mean (+/-standard deviation) age was 14.58+/-1.97 years. Genotyping of the insertion/deletion polymorphism (5-HTTLPR) in the 5-HTT gene's transcriptional control zone was established, and 8 participants (44.4%) were determined to be of the LL genotype, while 7 (38.8%) were LS and 3 (16.6%) were SS carriers. Considering the relationship between coping styles regarding resilience and genetic variants, 87.5% of participants (n=7) exhibiting problem-focused coping style were determined found to carry the LL allele, while 90% (n=9) who exhibited emotion focused coping styles were the SS-LS allele carriers (p=0.003). CONCLUSION: Our findings suggest that 5-HTTLPR gene polymorphism has a significant impact on the formation of coping styles. More studies are needed to determine other factors involved in the complex relationship between 5-HTTLPR gene polymorphism and development of psychopathology. PMID- 29033636 TI - Validity and Reliability of the Quality of Life in Epilepsy Inventory (QOLIE-10) For Turkey. AB - INTRODUCTION: The purpose of this study was to test as a shortened form of the health-related quality of life for patients with epilepsy inventory (QOLIE). METHODS: A study of 148 adult epileptic patients admitted to the Neurology Outpatient Clinic at Cumhuriyet University Hospital in Sivas was used to derive a brief screening tool from a longer instrument (QOLIE-31). RESULTS: The 10-item questionnaire (QOLIE-10) contains general and epilepsy-specific dimensions grouped into three domains: Epilepsy Effects (memory, physical effects, and mental effects of medication), Mental Health (energy, depression, overall quality of life), and Role Functioning (seizure worry, work, driving, social limits). Cronbach's alpha (measure of internal consistency) was high, as were the associations between QOLIE-10 and the Nottingham Health Profile (NHP). High correlations between QOLIE-10 and NHP domains (emotional reactions, energy, physical mobility, and social isolation) were found. CONCLUSION: The QOLIE-10 questionnaire is considered to be a valid and reliable tool for use in Turkey. Health professionals are encouraged to use this questionnaire to routinely examine the influences of the disease process in epilepsy patients. PMID- 29033637 TI - Cognitive Functioning in Euthymic Bipolar Patients on Monotherapy with Novel Antipsychotics or Mood Stabilizers. AB - INTRODUCTION: Bipolar disorder is associated with cognitive dysfunction in several domains. Medication effect is a potential confounder that can only be statistically controlled in many studies. The cognitive profile in bipolar disorder during remission on maintenance antipsychotics or mood stabilizers medication has not been compared before. METHODS: We compared the cognitive profile of bipolar disorder patients euthymic for 2 month or more on monotherapy with novel antipsychotics (AP) (n=16), lithium carbonate (Li) (n=25) or valproic acid (VPA; n=26). Forty-two individuals were assessed as controls. The cognitive battery included Wechsler Adult Intelligence Scale-Revised (WAIS-R) subtests, the Wechsler Memory Scale (WMS), and Wisconsin Card Sorting Test (WCST). RESULTS: All three patient groups compared to controls performed poorly on the working memory and verbal memory tasks (F=3.59, df=3, p=0.02 for WAIS-R Arithmetic and F=123.64, df=3, p<0.01 for WMS Logical Memory). The differences remained significant after controlling for age. Across patients, the only significant difference was between the Li and AP groups in terms of working memory. The Li group performed better (F=3.59, df=2, p=0.02) and the difference survived correction for age and clinical features. CONCLUSIONS: The findings of this study suggest that working memory impairment in bipolar patients on monotherapy with atypical AP, whereas verbal memory impairment might be related to bipolar disorder itself. Working memory might be a state marker, whereas verbal memory could be a trait marker of bipolar disorder. Atypical AP might have an adverse effect on cognition in bipolar disorder. These findings cannot be generalized to all bipolar patients, particularly the poor responders to monotherapy. PMID- 29033638 TI - Tolosa-Hunt Syndrome - Cranial Neuroimaging Findings. AB - INTRODUCTION: The etiology of Tolosa-Hunt Syndrome (THS) is still unknown. The initial standard magnetic resonance imaging (MRI) may not be sufficient for diagnosis, so dynamic contrast-enhanced MRI may be necessary to demonstrate the presence of lesions. METHODS: Seven patients diagnosed with THS according to the International Headache Society criteria (beta version) were included into the study. Patients were assessed in terms of type, age, symptoms and findings, accompanying disease, localization of the determined lesion, response to treatment, and clinical progress. The "Tolosa-Hunt protocol" was applied in all patients, and the cavernous sinuses, orbital apices, and orbits were evaluated. The parameters used for the patients were as follows: Turbospin echo T1 and T2 weighted sequences on the axial plane, turbospin echo fat-saturated T2 weighted sequence on the coronal plane, turbospin echo T2 weighted sequence on the sagittal plane, spin echo fat-saturated T1 sequences repeated on the axial and coronal planes followed by intravenous administration of gadolinium. In all sequences the slice thickness was 3 mm. RESULTS: Four of seven cases diagnosed with THS were males, and the average age of the patients was 45.7+/-18.1 years (range 25-69 years). A follow-up MRI in patient 5 after three months showed decreased signal intensity and enhancement of the affected cavernous sinus. CONCLUSION: Conventional MRI may be insufficient to show the granulomatous inflammation, and an MRI method referred to as the Tolosa-Hunt protocol should be applied to those who are thought to have THS. PMID- 29033639 TI - A Survey Focusing on Lucid Dreaming, Metacognition, and Dream Anxiety in Medical Students. AB - INTRODUCTION: The aim of this study was to examine the level of lucidity and its relation with metacognitive beliefs and dream anxiety in medical students. METHODS: Nine hundred sixteen medical students were enrolled in the study. The participants were assessed with the Lucidity and Consciousness in Dreams Scale (LuCiD), the Metacognition Questionnaire-30 (MCQ-30), and the Van Dream Anxiety Scale (VDAS). RESULTS: There was no significant difference in mean total lucidity score between females and males, but there were some significant sex differences in subscales of lucidity, and control was significantly higher in male students, while realism, thought, and dissociation were significantly higher in female students. In addition, females had more dream anxiety levels, higher total MCQ-30 scores, and higher cognitive confidence and uncontrollability scores according to Metacognition Questionnaire-30 than males. We also found that the mean lucidity level was positively correlated with the mean total metacognition score and the mean total dream anxiety level. DISCUSSION: Our results suggest that female medical students tend to have more realistic dreams (p=0.018), have more logical thoughts during dreaming (p=0.011), and have a more dissociative experience during dreaming (p=0.028), while male medical students have more controlled dream events (p=0.002). There seem to be differences according to lucidity features between sexes, and the relationship between subdomains of lucidity and metacognition might lead to new therapeutic approaches to several psychiatric disorders such as anxiety disorders. PMID- 29033640 TI - Identification of Allodynic Migraine Patients with the Turkish Version of the Allodynia Symptom Checklist: Reliability and Consistency Study. AB - INTRODUCTION: Cutaneous allodynia is regarded as an expression of central sensitization in migraine. Although the gold standard is quantitative sensory testing, several practical assessment questionnaires have been developed to assess allodynia in migraine. We aimed to establish the first valid Turkish allodynia assessment questionnaire based on a 12-item allodynia symptom checklist and to evaluate the associated factors. METHODS: The first part of the study included the translation and cultural adaptation of a Turkish version of the checklist. The Turkish version of the questionnaire was administered to 344 episodic and chronic migraine patients, who were chosen according to the International Classification of Headache Disorders -III beta criteria. RESULTS: The total checklist score showed excellent test-retest reliability (r=0.821). The internal consistency of the checklist was assessed using Cronbach alpha values and was found to be acceptable (Cronbach alpha for the checklist=0.767). Data analysis revealed that 10 items of the questionnaire adequately identified allodynic subjects. Cutaneous allodynia was present in 218 (63.4%) migraine patients. Allodynia was more prominent in patients experiencing migraine with aura (p=0.008) and in females (p<0.001). Multiple logistic regression analysis found that female gender, aura existence, longer headache duration, and higher attack frequency were the major determinants of cutaneous allodynia. CONCLUSION: Allodynia is common and has clinical significance in migraine; therefore, establishing a validated Turkish questionnaire for the assessment of allodynia was necessary. In this study, a Turkish version of the allodynia symptom checklist was validated and found to be convenient for the identification of allodynia in migraine patients. PMID- 29033641 TI - Do Low Serum UCH-L1 and TDP-43 Levels Indicate Disturbed Ubiquitin-Proteosome System in Autism Spectrum Disorder? AB - INTRODUCTION: The mechanism of ubiquitination-related abnormalities causing neural development problems is still unclear. We examined the association between autism and serum transactive response DNA-binding protein-43 (TDP-43) and ubiquitin c-terminal hydrolase-L1 (UCH-L1) levels, both of which are members of the ubiquitin-proteosome system. METHODS: We measured serum levels of TDP-43 and UCH-L1 in 24 children with autism and 24 healthy children. Childhood Autism Rating Scale (CARS) was used to assess symptom severity at admission. RESULTS: The mean serum TDP-43 and UCH-L1 levels in children with autism spectrum disorder (ASD) were found to decrease compared to healthy controls (p<0.001, 506.21+/ 780.97 ng/L and 1245.80+/-996.76 ng/L, respectively; 3.08+/-5.44 ng/mL and 8.64+/ 6.67 ng/mL, respectively). A positive correlation between serum TDP-43 levels and UCH-L1 levels was found in the ASD group (r=0.947, n=24, p<0.001). The CARS score of children with ASD was 48.91 points (standard deviation [SD]: 5.82). CONCLUSION: Low serum levels of UCH-L1 and TDP-43 may reflect disturbed ubiquitination in autism. PMID- 29033642 TI - The Effect of Type D Personality on Quality of Life in Patients with Multiple Sclerosis. AB - INTRODUCTION: The Type D personality was reported as an important indicator of adverse clinical outcomes and quality of life in various diseases. The objective of this study was to investigate the relationships between the Type D personality and clinical features and the effect of Type D personality on quality of life in patients with multiple sclerosis (MS). METHODS: Seventy-four patients with MS participated in this study. Clinical parameters of the patients were recorded and disability was assessed using the Expanded Disability Status Scale (EDSS). Patients were examined with the Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Type D Scale (DS14), and 36-Item Short-Form Health Survey (SF 36). RESULTS: BDI and BAI scores were significantly higher and mental subscale of the SF-36 scores were significantly lower in Type D compared to nonType D (p<0.001, p=0.001, and p<0.001, respectively). The total DS14 scores were found to be positively correlated with EDSS, BDI, and BAI and negatively correlated with SF-36 mental subscale (p=0.02, p<0.001, p<0.001, and p<0.001, respectively). Multivariate linear regression analysis indicated that the total DS14 score was independently associated with the mental component of SF-36 (p<0.001). CONCLUSION: The Type D personality traits may worsen the quality of life, particularly the mental component, in patients with MS. Consequently, the assessment of MS patients by brief and valid DS14 may be valuable for clinical practice. PMID- 29033643 TI - Dandy-Walker Malformation Presenting with Affective Symptoms. AB - Dandy-Walker malformation is defined by enlarged posterior fossa, cystic dilatation of the fourth ventricle, and cerebellar hypoplasia. Although developmental delay and mental retardation are common in Dandy-Walker malformation cases, other comorbid psychiatric conditions have been rarely reported. There are limited numbers of case reports about comorbidity of bipolar disorder with Dandy-Walker malformation in the literature. Herein, a Dandy-Walker malformation case presenting affective symptoms is reported, and psychiatric symptoms which might be seen in this rare malformation are discussed along with diagnosis, treatment, and follow-up processes. A 27-year-old male patient, hospitalized for compulsory treatment, had been diagnosed with Dandy-Walker malformation in childhood. First complaints were attention deficiency, behavioral problems, learning difficulties; and manic and depressive episodes have occurred during follow-ups. He recently complained of decreased need for sleep, irritability, and increased speed of thought, and psychiatric examination was consistent with manic episode. Cranial computed tomography (CT) revealed bilateral ventriculomegaly, enlarged third and fourth ventricles with posterior fossa cyst, and cerebellar hypoplasia. His treatment included 30 mg/day aripiprazole, 1000 mg/day valproic acid, 200 mg/day quetiapine, 4 mg/day biperiden, and 100 mg/month paliperidone palmitate. Beside its traditional role in the regulation of coordination and motor functions, cerebellum is increasingly emphasized for its involvement in the mood regulation. Thus, as seen in Dandy Walker malformation, cerebellar anomalies are suggested to play a role in the pathophysiology of mood disorders. Further studies are needed to better understand the relationship between mood disorders and cerebellum. Moreover, treatment options should be considered carefully in terms of resistance to treatment and potential side effects, for psychiatric disorders occurring in these cases; and detailed examinations, including cranial imaging, would be beneficial in bipolar cases with early onset, unresponsiveness to treatment, presenting atypical symptoms, mental retardation, and developmental delay as well as neurological symptoms and signs. PMID- 29033644 TI - A Very Rare Type of Neuralgia: Nervus Intermedius Neuralgia. PMID- 29033645 TI - Kleine-Levine Syndrome Co-occuring with Bipolar Disorder. PMID- 29033646 TI - Cerebrovascular Events Secondary to Pulmonary Arteriovenous Malformation Based on Genetic Heterogeneity. PMID- 29033647 TI - Erratum. AB - [This corrects the article on p. 169 in vol. 53, PMID: 28360791.]. PMID- 29033648 TI - Recircumscription and taxonomic revision of Siderasis, with comments on the systematics of subtribe Dichorisandrinae (Commelinaceae). AB - A new circumscription and a total of six microendemic species, four of them new to science, are herein presented for Siderasis, based on field and herbaria studies, and cultivated material. We provide an identification key to the species and a distribution map, description, comments, conservation assessment, and illustration for each species. Also, we present an emended key to the genera of subtribe Dichorisandrinae, and comments on the morphology and systematics of the subtribe. PMID- 29033649 TI - Study of the leaf anatomy in cross-section in the Iberian species of Festuca L. (Poaceae) and its systematic significance. AB - A study of the leaf anatomy in the species of the genus Festuca present in the Iberian Peninsula was made. A total of 68 taxa were included and 15 characters were measured in leaf cross-section. The major anatomical features of each taxonomic group were characterized, and some variability was observed in the taxa. The anatomical patterns observed were compared and discussed with the relationships suggested by the molecular analyses. The leaf outline, the presence or absence of complete girders, and the development degree of the bulliform cells were the main characters to differentiate among fescue species of the fine-leaved clade and those of the broad-leaved clade. The most useful character to segregate species groups within the different taxonomic sections was the arrangement of the sclerenchyma, and a remarkable variability of this character was found in the species of Festuca section Festuca, especially in those located in other lineages according to molecular markers. Most of the anatomical patterns were not exclusive of the sections or lineages, and only some taxa could be anatomically differentiated at species level based on a set of non-taxative characters. The discordant pattern observed in F. henriquesii, a species traditionally included in Festuca sect. Festuca that shared anatomical features with the species of "F. rubra complex", suggests its possible inclusion in the sect. Aulaxyper pending further taxonomic and phylogenetic analyses. PMID- 29033650 TI - Stipa pennata subsp. ceynowae (Poaceae, Pooideae), a new taxon from Central Europe. AB - Based on numerical analyses of macromorphological characters, scanning electron microscopy observation of leaves and lemma micromorphology, as well as field observations, Stipa pennata subsp. ceynowae was described here as a new taxon from Poland. It differs from the most similar S. pennata subsp. pennata and S. borysthenica mainly by its longer ligules of vegetative shoots. The affinities of this taxon are discussed and a morphological comparison with related species is provided. Illustrations and images of the micromorphological structures, as well as information about its distribution, habitat and conservation status are given. PMID- 29033651 TI - Premna bhamoensis (Lamiaceae, Premnoideae), a new species from Kachin State, northeastern Myanmar. AB - In the present study, we describe and illustrate a new species, Premna bhamoensis Y. T. Tan & B. Li (Lamiaceae), from Myanmar. In the 1980s, this species was transplanted from Bhamo County in northeastern Myanmar to the Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences. The species shows striking morphological similarity to P. menglaensis B. Li, and thus, has been misidentified as the latter for a long period of time. However, morphological comparison revealed that P. bhamoensis is distinct from P. menglaensis in many aspects. Moreover, literature survey and specimen examinations also indicated that P. bhamoensis is undoubtedly different from all seven known congenetic species recorded from Kachin State, Myanmar, and a key for their identification has been provided in this paper. PMID- 29033653 TI - Melicope stonei, section Pelea (Rutaceae), a new species from Kaua'i, Hawaiian Islands: with notes on its distribution, ecology, conservation status, and phylogenetic placement. AB - Melicope stonei K.R. Wood, Appelhans & W.L. Wagner (section Pelea, Rutaceae), a new endemic tree species from Kaua'i, Hawaiian Islands, is described and illustrated with notes on its distribution, ecology, conservation status, and phylogenetic placement. The new species differs from its Hawaiian congeners by its unique combination of distinct carpels and ramiflorous inflorescences arising on stems below the leaves; plants monoecious; leaf blades (5-)8-30 * (4-)6-11 cm, with abaxial surface densely tomentose, especially along midribs; and very long petioles of up to 9 cm. Since its discovery in 1988, 94 individuals have been documented and are confined to a 1.5 km2 region of unique high canopy mesic forest. Melicope stonei represents a new Critically Endangered (CR) single island endemic species on Kaua'i. PMID- 29033652 TI - Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains. AB - Craterispermum capitatum and C. gabonicum, two new species of Rubiaceae, are described from the Lower Guinea and Congolian Domains. Detailed descriptions and distribution maps are provided for each species, their conservation status is assessed and their taxonomic affinities are discussed. Craterispermum gabonicum is unique within the genus because of the strong dimorphism in brevistylous and longistylous flowers and inflorescences. We hypothesize that this species shows some form of dioecy. The distribution of C. capitatum shows a wide disjunction: the species is present in the Lower Guinean and Congolian Domains but absent from Gabon and South Cameroon. An identification key for the Craterispermum species present in the Lower Guinean and Congolian Domains is given. PMID- 29033654 TI - A revision of the Solanum elaeagnifolium clade (Elaeagnifolium clade; subgenus Leptostemonum, Solanaceae). AB - The Solanum elaeagnifolium clade (Elaeagnifolium clade) contains five species of small, often rhizomatous, shrubs from deserts and dry forests in North and South America. Members of the clade were previously classified in sections Leprophora, Nycterium and Lathyrocarpum, and were not thought to be closely related. The group is sister to the species-rich monophyletic Old World clade of spiny solanums. The species of the group have an amphitropical distribution, with three species in Mexico and the southwestern United States and three species in Argentina. Solanum elaeagnifolium occurs in both North and South America, and is a noxious invasive weed in dry areas worldwide. Members of the group are highly variable morphologically, and this variability has led to much synonymy, particularly in the widespread S. elaeagnifolium. We here review the taxonomic history, morphology, relationships and ecology of these species and provide keys for their identification, descriptions, full synonymy (including designations of lectotypes) and nomenclatural notes. Illustrations, distribution maps and preliminary conservation assessments are provided for all species. PMID- 29033655 TI - Waarnemingen.be - Plant occurrences in Flanders and the Brussels Capital Region, Belgium. AB - Waarnemingen.be - Plant occurrences in Flanders and the Brussels Capital Region, Belgium is a species occurrence dataset published by Natuurpunt. The dataset contains almost 1.2 million plant occurrences of 1,222 native vascular plant species, mostly recorded by volunteers (citizen scientists), mainly since 2008. The occurrences are derived from the database http://www.waarnemingen.be, hosted by Stichting Natuurinformatie and managed by the nature conservation NGO Natuurpunt. Together with the datasets Florabank1 (Van Landuyt and Brosens 2017) and the Belgian IFBL (Instituut voor Floristiek van Belgie en Luxemburg) Flora Checklists (Van Landuyt and Noe 2015), the dataset represents the most complete overview of indigenous plants in Flanders and the Brussels Capital Region. PMID- 29033656 TI - Typifications for Galactia purshii and G. volubilis (Fabaceae). AB - The pervasive difficulties encountered with studying Galactia in the eastern USA necessitate additional typifications to stabilize the taxonomy. Galactia purshii is lectotypified here as the earliest available but overlooked name for a fairly common species of the Atlantic Coast and peninsular Florida. Galactia volubilis is epitypified here since the characterization of the species has been limited by its lectotype being an illustration. A lectotype is designated for Galactia pilosa var. angustifolia, a form with narrow leaves here considered synonymous with G. volubilis. PMID- 29033657 TI - A new combination and taxonomic notes in Pseudobombax Dugand (Malvaceae). AB - Taxonomic notes in the Neotropical genus Pseudobombax (Malvaceae) are presented. One new combination and two new heterotypic synonyms for taxa originally described from Brazil and Ecuador are proposed based on both morphological and previously published molecular evidence. The taxonomic changes will be adopted in a treatment of Pseudobombax for the upcoming Brazilian Flora 2020 and in a forthcoming revision of the genus throughout its range. PMID- 29033658 TI - A new species of Saracha (Solanaceae) from the Central Andes of Peru. AB - Saracha andina Rob. Fernandez, I. Revilla & E. Pariente, sp. nov. (Solanaceae), a new species endemic to the central Andes of Peru, is described here. The new species differs from other species of Saracha Ruiz & Pav. by the combination of small and coriaceous leaves and clearly tubular flowers. A summary of the taxonomic history of the genus Saracha, an identification key for its species and a phylogenetic analysis of this genus and related genera are provided. PMID- 29033659 TI - Eithea lagopaivae, a new critically endangered species in the previously monotypic genus Eithea Ravenna (Amaryllidaceae). AB - Eithea lagopaivae Campos-Rocha & Dutilh, sp. nov. is described as the second species of the formerly monotypic genus Eithea. It is characterized by a one flowered inflorescence, completely hollow scape, white or lightly magenta striated flower that is enclosed by spathe bracts fused for more than the lower fifth of its length. Comments on its range, habitat, phenology, as well as photographs and illustrations are provided. In addition, a distribution map and an identification key for the two species of the genus are presented and anatomical and ecological differences compared. Known by only two small populations exposed to several types of threats and without any guarantee of protection, E. lagopaivae is considered a Critically Endangered (CR) species. PMID- 29033660 TI - Gelidocalamus xunwuensis (Poaceae, Bambusoideae), a new species from southeastern Jiangxi, China. AB - Gelidocalamus xunwuensis W.G.Zhang & G.Y.Yang, a new species collected from Xunwu County of Jiangxi Province in China, is described and illustrated. The new species is similar to G. stellatus in the habit, but differs by internodes sparsely hairy with granuliferous warts, culm sheath stiffly hairy, culm sheath blade broadly lanceolate to narrowly triangular, each node with a ring of appressed trichomes below, foliage leaves broadly lanceolate to narrowly oblong, and new shoots occurring in late October. PMID- 29033661 TI - Incadendron : a new genus of Euphorbiaceae tribe Hippomaneae from the sub-Andean cordilleras of Ecuador and Peru. AB - Incadendron esseri K.Wurdack & Farfan, gen. & sp. nov., from the wet sub-Andean cordilleras of Ecuador (Cordillera del Condor) and Peru (Cusco, Oxapampa) is described and illustrated. This recently discovered large canopy tree with a narrow elevational range presents an unusual combination of rare morphological characters in Hippomaneae including mucilage-secreting sheathing stipules, conduplicate ptyxis, and large, woody fruits. The broader significance of these characters in Hippomaneae is discussed. The morphology and anatomy of Incadendron were investigated, highlighting its fruit similarities with Guiana Shield endemic Senefelderopsis, and the systematics value of ptyxis variation, which remains poorly studied for the family. PMID- 29033662 TI - A valid name for the Xishuangbanna gourd, a cucumber with carotene-rich fruits. AB - Herbarium specimens deposited in publicly accessible collections are the basis for all scientific names because only permanent specimens can be re-studied by independent researchers, the very essence of science. Re-investigations may be done with morphological, chemical, genomic, computer-tomographic, or other methods. Based on new herbarium material, I here provide a name for the Xishuangbanna gourd, a plant long cultivated in Yunnan because of its large non bitter fruits, rich in beta-carotene. Genome re-sequencing of numerous accessions has shown that this cucumber mutant is closer to Cucumis sativus var. sativus than is the wild bitter-fruited progenitor C. sativus var. hardwickii, and two dozen studies have further clarified the genetics of key traits, including pulp color, fruit shape, and flowering times. Morphological and molecular diagnoses of the new variety are provided and museum-quality specimens have been distributed to the World's major herbaria. PMID- 29033663 TI - Pteris latipinna sp. nov. (Pteridaceae), a new species segregated from Pteris fauriei. AB - Pteris fauriei is widely distributed in Eastern Asia and has high morphological variation. Some morphologically similar plants related to this species are difficult to distinguish. We showed that the new Pteris species from Taiwan, previously identified as P. fauriei, can be morphologically distinguished by its wide pinnae, larger terminal pinnae than the lateral pinnae in sterile fronds, and triangular basal segments of the lateral pinnae. It was confirmed that this species is phylogenetically separated from the other East Asian Pteris species, except for a morphologically distinct species P. arisanensis, by means of chloroplast genes, rbcL and matK. The new species is named as Pteris latipinnasp. nov., referring to its wide pinnae. Here, we provide a key to facilitate the identification of the morphologically similar Pteris species in Asia. The morphological descriptions, images, ecology, and distribution are also presented. PMID- 29033664 TI - Bituminaria antiatlantica (Psoraleeae, Fabaceae), a new species from Morocco. AB - A new species of Bituminaria is described and illustrated: Bituminaria antiatlantica Brullo, C. Brullo, Cambria, Cristaudo & Giusso, sp. nov., which is endemic to Anti-Atlas Mountains (Morocco). It is a true chasmophyte, characterized by a suffruticose habit, several woody branches, leaflets coriaceous, rounded to ovate, small, few-flowered inflorescences and corolla pale coloured. PMID- 29033665 TI - The Shenzhen Declaration on Plant Sciences: Too late or just in time? PMID- 29033666 TI - The Shenzhen Declaration on Plant Sciences - Uniting plant sciences and society to build a green, sustainable Earth. PMID- 29033667 TI - On merging Acer sections Rubra and Hyptiocarpa: Molecular and morphological evidence. AB - In this study, we expanded Acer sect. Rubra Pax to include A. sect. Hyptiocarpa Fang. Traditionally, section Rubra comprises two iconic species, Acer rubrum Linnaeus (red maple) and A. saccharinum Linnaeus (silver maple), of eastern North American forests as well as the rare Japanese montane species, A. pycnanthum K. Koch. Section Hyptiocarpa consists of A. laurinum Hasskarl and A. pinnatinervium Merrill, which occur in subtropical and tropical regions of southwestern China to southeast Asia. Here, we confirm prior phylogenetic results showing the close relationship between sects. Rubra and Hyptiocarpa, and we use scanning electron microscopy to demonstrate that leaves of species within these sections have similar arrangements of cuticular waxes, which account for the silvery color of their abaxial surfaces. We describe that the sections also share labile sex expression; inflorescences that range from compound racemose thyrses, to racemes or umbels and that may have undergone evolutionary reduction; and several features of their fruits, such as seed locules without keels, basal portion of wings straight, acute attachment angle between mericarps, and production of some mericarps that are seedless and partially developed at maturity. Our expansion of sect. Rubra to include sect. Hyptiocarpa better elucidates the biogeographic and evolutionary history of these species. Additionally, we show that A. laurinum and A. pinnatinervium have intergrading morphology and are probably synonymous, but we note that further studies are required to conclude their taxonomic status. PMID- 29033668 TI - Integrative research identifies 71 new plant species records in the state of Rio Grande do Norte (Brazil) and enhances a small herbarium collection during a funding shortage. AB - A National Forest Inventory (NFI) encompassing the entire territory of Brazil is in progress. It is coordinated and promoted by the Brazilian Forest Service of the Ministry of Environment. In each state, the NFI collaborates with local herbaria by receiving collected plant material and performing species identification. Consultants are hired by the NFI and work at the local herbaria under the supervision of a curator. In exchange for curatorial assistance, the NFI provides equipment and consumables for the herbarium. Other public projects collaborating with NFI are Reflora and the Brazilian Biodiversity Information System (SiBBr). Both projects have online platforms that seek to connect herbaria and make all their data freely available, including high quality digital images of specimens. Through inter-institutional collaboration, the joint interests of NFI, Reflora, SiBBr and local herbaria have improved collections, expanded the online Reflora database, and provided the NFI with verified species lists. These strategic uses of public funding are positively affecting Botany, particularly during a period of economic crisis and cuts in research. Here, we illustrate the increase in floristic knowledge through the improvement of a herbarium collection in Rio Grande do Norte (RN) - the Brazilian state with the lowest levels of plant richness. We report 71 new occurrences of vascular plants for RN, belonging mainly to the Poaceae, Fabaceae and Malvaceae. Most of the species with new occurrences have a Neotropical distribution (21 spp.) and only seven are restricted to the Brazilian Northeast. Our findings highlight previous gaps in RN's floristic knowledge. The partnership NFI, Reflora, SiBBr and the UFRN herbarium improved herbarium curation, digital collection, and quality of data. Finally, a fellowship provided by Reflora and SiBBr allowed improving curation by distributing duplicates and incorporating the Herbarium of Camara Cascudo Museum. PMID- 29033669 TI - Evolutionary algorithms and synthetic biology for directed evolution: commentary on "on the mapping of genotype to phenotype in evolutionary algorithms" by Peter A. Whigham, Grant Dick, and James Maclaurin. AB - I rehearse two issues around the commentary of Whigham and colleagues. (1) There really are many more reasons than those given as to why natural evolution cannot reasonably find or select the 'optimal' individual. (2) A series of experimental molecular biology programmes, known generically as directed evolution, can use operators and selection schemes that natural evolution cannot. When developed further using the methods of synthetic biology, there are no operators or schemes for in silico evolution that cannot be applied precisely to directed evolution. The issues raised apply only to natural evolution but not to directed evolution. PMID- 29033671 TI - Loss of a Pioneer: Hussein Abdel-Dayem, MD 1934-2017. PMID- 29033672 TI - Role of Fluorodeoxyglucose-Positron Emission Tomography/Computed Tomography in the Evaluation of Head and Neck Carcinoma. AB - Fluorodeoxyglucose (FDG)-positron emission tomography-computed tomography (PET CT) has been playing a pivotal role in tumor imaging for the past 20 years. Head and neck (HN) cancers are a good example that can illustrate such unique role of FDG imaging contributing to the patient's management. In this review article, we will describe the normal physiological distribution of FDG within HN structures focusing on its limitations and pitfalls. In addition, we will be also describing its role in the initial staging and restaging of the disease, particularly with regard to therapy response assessment. Furthermore, its role in the evaluation of patients with malignant cervical adenopathy from an unknown primary will be described. In 2016, the Royal College of Radiologists in its third edition published evidence-based guidelines for PET-CT use in HN cancer emphasizing its rule in all these clinical scenarios that are being described in this review. Finally, we will be highlighting future directions in the field of molecular imaging of HN tumors with a special emphasis on the new PET tracers. PMID- 29033673 TI - Automated Bone Scan Index as Predictors of Survival in Prostate Cancer. AB - Prostate cancer (PCa) is the second most diagnosed cancer in men. Early diagnosis and right management of PCa is critical to reducing deaths; the life expectancy is the main factors to be considered in the management of PCa. Among patients who die from PCa, the incidence of skeletal involvement appears to be >85%. Bone scan (BS) is the most common method for monitoring bone metastases in patients with PCa. The extent of bone metastasis was also associated with patient survival until now there is no clinically useful technique for measuring bone tumors and includes this information in the risk assessment. An alternative approach is to calculate a BS index (BSI) and it has shown clinical significance as a prognostic imaging biomarker. Some computer-assisted diagnosis (CAD) systems have been developed to measure BSI and are now available. The aim of this study was to investigate automated BSI (aBSI) measurements as predictors' survival in PCa. Retrospectively cohort studied fifty patients with PCa who had undergone BS between January 2010 and December 2011 at our institution. All data collected was updated up to August 2016. CAD system analyzing BS images to automatically compute BSI measurements. Patients were stratified into three BSI categories BSI value 0, BSI value <=1 and BSI value >1. Kaplan-Meier estimates of the survival function and the log-rank test were used to indicate a significant difference between groups stratified in accordance with the BSI values. A total of 35 subjects deaths were registered, with a median survival time 36 months after the follow-up BS of 5 years. Subjects with low aBSI value had longer overall survival in comparison with the other subjects (P = 0.004). aBSI measurements were shown to be a strong prognostic survival indicator in PCa; survival is poor in high-BSI value. PMID- 29033670 TI - Review of lattice results concerning low-energy particle physics: Flavour Lattice Averaging Group (FLAG). AB - We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the light-quark masses, the form factor [Formula: see text], arising in the semileptonic [Formula: see text] transition at zero momentum transfer, as well as the decay constant ratio [Formula: see text] and its consequences for the CKM matrix elements [Formula: see text] and [Formula: see text]. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of [Formula: see text] and [Formula: see text] Chiral Perturbation Theory. We review the determination of the [Formula: see text] parameter of neutral kaon mixing as well as the additional four B parameters that arise in theories of physics beyond the Standard Model. The latter quantities are an addition compared to the previous review. For the heavy-quark sector, we provide results for [Formula: see text] and [Formula: see text] (also new compared to the previous review), as well as those for D- and B-meson-decay constants, form factors, and mixing parameters. These are the heavy-quark quantities most relevant for the determination of CKM matrix elements and the global CKM unitarity-triangle fit. Finally, we review the status of lattice determinations of the strong coupling constant [Formula: see text]. PMID- 29033674 TI - Appearance of Adrenal Myelolipomas on 2-deoxy-2-(18F) fluoro-D-glucose Positron Emission Tomography-Computed Tomography. AB - With the widespread use of 2-deoxy-2-(18F) fluoro-D-glucose positron emission tomography-computed tomography (FDG PET/CT) in oncologic imaging, it has become increasingly important for physicians who interpret FDG PET/CT scans to confidently recognize the spectrum of incidentally encountered benign and malignant findings. The adrenal glands represent an interesting nexus of multiple rare and common benign intrinsic tumors as well as metastases from a variety of primary malignancies. Given the breadth of adrenal gland pathology, careful description of the FDG PET/CT appearance of these pathologies is of value to help reduce misinterpretation. In this manuscript, we retrospectively and systematically review the FDG PET/CT imaging characteristics of benign adrenal myelolipomas in a small consecutive patient series. The myelolipomas in this series demonstrated differing degrees of macroscopic fat visible on CT, with generally mild FDG uptake fusing to the nonfatty portions of the lesions. At imaging follow-up, all of the myelolipomas in this series remained unchanged in appearance, helping to confirm their benign nature. The typical appearance of a myelolipoma on FDG PET/CT is a fat-containing adrenal mass with low-level FDG uptake in the nonfatty aspects of the mass, and such a lesion requires no further imaging workup. PMID- 29033675 TI - Considering the Relationship between Quantitative Parameters and Prognostic Factors in Breast Cancer: Can Mean Standardized Uptake Value be an Alternative to Maximum Standardized Uptake Value? AB - It was aimed to investigate the correlation between maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean), and retention index (RI), which represents the quantitative evaluation of the uptake of 18F-fluoro-2 deoxy-D-glucose (18F-FDG) used in positron emission tomography (PET) and clinicopathologic as well as biologic prognostic factors. Forty-one women with breast cancer who were histopathologically diagnosed were included in this study. Neoadjuvant chemotherapy was applied to all patients before PET/computed tomography (CT). After FDG injection, PET/CT screening was applied within the 1st h (PET-1) and in the 2nd h (PET-2). SUVmax, SUVmean, SUVmax RI, and SUVmean RI of every image were calculated qualitatively and semiquantitatively. The correlation between quantitative and semiquantitative PET parameters and biologic as well as clinicopathologic prognosis factors was evaluated. Statistically, significant positive correlation was found between lymph nodes (LNs), which were evaluated by clinical picture, clinical stage as well as histopathologically and quantitative PET parameters (SUVmax1, SUVmax2,, RImax, SUVmean1, SUVmean2, RImean) (P < 0.05). While statistically significant correlation with RImax was detected only by LN (histopathological), correlations with RImean were detected by clinical picture, clinical stage, metabolic stage, and LN (histopathological). Statistically, significant correlation was found between RImax and estrogen receptor in patients who were histopathologically diagnosed with invasive ductal carcinoma (n = 34) (P < 0.05). We detected correlations between biologic and clinicopathologic prognostic factors and SUVmax as well as SUVmean values in breast carcinoma. SUVmean values may provide important knowledge when the correlation between prognostic factors and PET parameters is investigated even if they are not used routinely. PMID- 29033676 TI - The Role of Fluorodeoxy-D-glucose Positron Emission Tomography/Computed Tomography in Nodal Staging of Nonsmall Cell Lung Cancer in Sequential Surgical Algorithm. AB - With nonsmall cell lung cancer (NSCLC), accurate mediastinal nodal staging is crucial to determine whether a patient is or is not a surgical candidate. Traditionally, computed tomography (CT) and fluorodeoxy-D-glucose (FDG) positron emission tomography (PET)/CT are the initial steps followed by tissue sampling through mediastinoscopy and/or thoracotomy, which are invasive procedures. There is controversy regarding the possibility of omission of the invasive diagnostic procedures and solely relying on noninvasive presurgical staging CT and FDG PET/CT results. Eighty-three patients who had PET/CT, mediastinoscopy, and thoracotomy for NSCLC were analyzed. For all lymph nodes that may be sampled by mediastinoscopy, PET/CT sensitivity was 80%, specificity was 86%, positive predictive value was 47%, and negative predictive value (NPV) was 97%; and for those in this group whose clinical stage was T1/T2 M0, sensitivity was 100% and specificity was 84%. For lymph nodes accessible only at thoracotomy, sensitivity was 42% and specificity was 88%. FDG PET/CT is accurate in assessing stations 2R/L, 4R/L, and 7 nodes and has the potential to replace mediastinoscopy in the treatment algorithm of T1/T2 M0 disease. A negative PET/CT may potentially prevent the patient from invasive mediastinoscopy given its high NPV. However, a patient with positive PET/CT should undergo tissue biopsy with pathology confirmation. PMID- 29033677 TI - Diagnostic Accuracy and Impact of Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in Preoperative Staging of Cutaneous Malignant Melanoma: Results of a Prospective Study in Indian Population. AB - The aim of the study was to evaluate the diagnostic accuracy of positron emission tomography/computed tomography (PET/CT) in staging patients with primary cutaneous malignant melanoma (CMM). We further compared the performance of PET/CT with conventional imaging (CI) (CT and ultrasonography [USG]) and assessed the impact of PET/CT on disease management. This was a single institution, prospective, double-blinded study, recruiting a total of 70 treatment naive patients. The sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV) of PET/CT for N staging were 86%, 96%, 80%, and 97%, respectively. The sensitivity, specificity, NPV, and PPV of PET/CT for M staging were 87%, 100%, 93%, and 100%, respectively. The diagnostic accuracy of the PET/CT was superior to CI for N staging (90% vs. 84% for CT and 80% for USG) and M staging (95% vs. 90% for CT). No statistically significant difference was noted between PET/CT and CI for N staging (PET/CT vs. CT, P = 0.125; PET/CT vs. USG, P-0.063) or M staging (PET/CT vs. CT, P = 0.125). PET/CT upstaged 23% of patients with clinically localized disease and 58% of patients with clinically palpable regional nodes. To conclude, fluorodeoxyglucose PET/CT is a highly sensitive and specific imaging modality for preoperative staging of primary CMMs. PET/CT impacts disease management in significant number of patients and should be especially recommended in all patients with clinically palpable regional nodes. PMID- 29033678 TI - Quantitative Metabolic Volumetric Product on 18Fluorine-2fluoro-2-deoxy-D-glucose positron Emission Tomography/Computed Tomography in Assessing Treatment Response to Disease-modifying Antirheumatic Drugs in Rheumatoid Arthritis: Multiparametric Analysis Integrating American College of Rheumatology/European League Against Rheumatism Criteria. AB - The purpose of this study was to assess the role of fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (FDG-PET/CT) in the evaluation of treatment response evaluation to disease-modifying antirheumatic drug (DMARD) therapy in patients of rheumatoid arthritis (RA). A total of ten patients with proven diagnosis of RA as per the 2010 American College of Rheumatology/European League against Rheumatism (EULAR) criteria were prospectively evaluated. All patients underwent clinical and biochemical evaluation and a baseline FDG-PET/CT with assessment of maximum standardized uptake value and metabolic volumetric product (MVP) values. DMARD therapy was started with a combination of hydroxychloroquine and sulfasalazine. On follow-up at 3 and 6 months, the response to treatment was assessed by clinical, biochemical, and FDG-PET/CT parameters. These parameters were analyzed in a combined manner, and the patients were grouped into 4 categories as per response to DMARD therapy - complete response, good response, mixed response, and no response. Evaluation of treatment response in ten patients at 3rd month and in nine patients at 6 months showed (a) agreement for MVP, biochemical parameters with clinical symptomatic assessment in all patients, (b) while agreement for EULAR score was noted in only three patients and disagreement in seven patients with clinical symptoms Response EULAR (rEULAR) (0.37) and at 6 months in only three patients and disagreement in six patients, rEULAR (0.52). The correlation factors at 3rd month and 6th months were, respectively, as follows: rMVP (0.67 and 0.75), response RA factor (0.54 and 0.74), response erythrocyte sedimentation rate (0.81 and 0.73), response C reactive protein (0.78 and 0.51), and response anti-cyclic citrullinated peptide antibodies (0.33 and 0.54). The overall response to DMARD therapy at 3 months was assessed with results showing good response by four cases (40%), mixed response by 1 (10%), no response by 5 (50%), and complete response by none (0%). Step-up therapy at 3 months was initiated in four patients showing nonresponse/progression on clinical symptomatic assessment; of these, two patients showed a good response, one mixed response, and the remaining one continued to show nonresponse at 6 months follow-up. One patient who had a minimal response at 3 months on PET-CT (only 5.96% reduction of MVP) was continued on the same DMARD in view of clinical symptomatic good response (at 3 months) but ultimately had disease progression in all scales and worsening of symptom (at 6 months). FDG-PET/CT-based assessment of inflammatory activity noted in the joints of RA with quantitative parameters can be a promising approach for the whole body assessment of RA disease activity and treatment response assessment, especially in inconclusive cases and correlates well with other parameters. MVP can be used as a useful objective and adjunct parameter for assessing response to treatment. PMID- 29033679 TI - Incremental Value of Single-photon Emission Computed Tomography-computed Tomography for Characterization of Skeletal Lesions in Breast Cancer Patients. AB - The incremental value of single-photon emission computed tomography-computed tomography (SPECT-CT) over planar bone scintigraphy and SPECT in detecting skeletal lesions in breast cancer patients and its effect on patient management is assessed in this study. This is a prospective study which was conducted over 1 year duration. Whole-body planar scintigraphy, SPECT, and SPECT-CT were performed in 85 breast cancer patients with total of 128 lesions. Correlative imaging and clinical follow-up was used as the reference standard. McNemar's multistep analysis was performed for each patient and each lesion. On patient-wise analysis, 47 patients had equivocal diagnosis on planar bone scintigraphy, 28 on SPECT, and eight on SPECT-CT. On lesion-wise analysis, there were 72 equivocal lesions on planar bone scintigraphy, 48 on SPECT, and 15 on SPECT-CT. Overall, SPECT-CT resulted in a significant reduction in the proportion of equivocal diagnosis on both patient-wise (P < 0.004) and lesion-wise basis (P < 0.004), irrespective of the skeletal region involved. The sensitivity on a per-patient basis was 43%, 58%, and 78% for planar bone scintigraphy, SPECT, and SPECT-CT, respectively. Similarly, the specificity was 85%, 92%, and 94% for planar bone scintigraphy, SPECT, and SPECT-CT, respectively. Patient management was correctly altered in 32% of the patients based on SPECT-CT interpretation. Our data suggest that adding SPECT-CT to whole-body imaging significantly improves sensitivity and specificity in diagnosing bone metastases and significantly reduces the proportion of equivocal diagnosis in all regions of the skeleton. The most important outcome is derived from the accurate alteration in patient management clinically by down- and up-staging of patients and a more precise identification of metastatic extent. PMID- 29033680 TI - The Utility of 99mTechnetium-mercaptoacetyltriglycine Renogram in Assessing the Baseline Renal Function of a Rare Incidental Ectopic Thoracic Kidney. AB - Ectopic thoracic kidney is an extremely rare condition caused by the abnormal location of one or both kidneys in the thoracic cavity. They are usually discovered incidentally on routine imaging. Although commonly asymptomatic, thoracic kidneys are at a risk of malrotation, pelviureteric junction obstruction, and subsequent obstructive nephropathy, by virtue of their long pedicle. We present a case report of an incidental thoracic kidney, for which a 99mtechnetium-mercaptoacetyltriglycine (99mTc-MAG3) renogram was performed to assess the baseline renal function. Although few reports are published in the literature using 99mTc-MAG3 renogram for this indication, we demonstrate a safe and feasible study to establish a baseline assessment of renal function in this group of patients. PMID- 29033681 TI - Postoperative Intraperitoneal Bladder Rupture Detected by Renal Scintigraphy: The Importance of Postvoid Imaging. AB - Iatrogenic intraperitoneal bladder rupture is an entity that may present in a patient with idiopathic ascites. Nuclear scintigraphy is an unusual modality for the diagnosis of this etiology, and in particular, the postvoid imaging demonstrates critical findings. We present a case report, pertinent imaging, and a review of literature. PMID- 29033682 TI - Usefulness of Tc99m-mebrofenin Hepatobiliary Scintigraphy and Single Photon Emission Computed Tomography/Computed Tomography in the Diagnosis of Bronchobiliary Fistula. AB - Bronchobiliary fistula (BBF), a rare complication of liver disease, is an abnormal communication between the biliary tract and bronchial tree. BBF may occur as a consequence of local liver infections such as hydatid or amebic disease, pyogenic liver abscess or trauma to the liver, obstruction of biliary tract, and tumor. As such management of liver disease with BBF is very difficult and often associated with a high rate of morbidity and mortality. Therefore, timely diagnosis of BBF is imperative. Hepatobiliary scintigraphy along with hybrid single photon emission computed tomography/computed tomography using Tc99m mebrofenin is a very useful noninvasive imaging modality, in the diagnosis of BBF. PMID- 29033683 TI - Regional Liver Disorder with Differences in the Accumulation of 99mTc-phytate and 99mTc-galactosyl Human Serum Albumin. AB - We report a 56-year-old woman with regional liver disorder due to acute hepatitis. Computed tomographic images showed low signal density at a plain phase and prolonged contrast effect at a late phase in the left hepatic lobe, in which an accumulation of 99mTc-phytate increased, whereas that of 99mTc-galactosyl human serum albumin (GSA) decreased. Meanwhile, in the right lobe, an accumulation of 99mTc-GSA showed more increased than that of 99mTc-phytate. Liver biopsy showed massive hepatocyte necrosis and interface hepatitis in the left lobe, and moderate hepatitis in the right lobe. Differences in the accumulation between these scintigrams were helpful for understanding rapid necrosis in the left lobe, resulting in a compensatory enlargement of the right lobe. Clinicians should be aware that some cases of acute hepatitis cause regional liver disorder although most cases show homogeneous inflammation. PMID- 29033684 TI - Fluorine-18-2-fluoro-2-deoxy-D-glucose Positron Emission Tomography/Computed Tomography Masquerading as a Case of Sporadic Malignant Peripheral Nerve Sheath Tumor of Lower Extremity Presenting as Massive Lower Limb Edema. AB - Malignant peripheral nerve sheath tumors (MPNSTs) are rare neuroectodermal tumors resulting from the malignant transformation of benign plexiform neurofibromas. The sporadic form of these tumors is rare than familial variants (seen in neurofibromatosis Type 1) and making the diagnosis difficult. We are presenting a case of 40--year-old female with the complaint of progressive swelling of lower limb with initial suspicion of lymphedema and underwent lymphoscintigraphy, magnetic resonance imaging, and finally fluorine-18-2-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography scans were done to rule out mitotic etiology and extent of the disease. The patient underwent below-knee amputation, and histopathological examination confirmed the diagnosis of sporadic MPNST. PMID- 29033685 TI - Evaluation and Identification of Lumbosacral Transitional Vertebra Causing Intractable Low Back Pain Utilizing Bone Single-Photon Emission Tomography with Computed Tomography. AB - The cause of low back pain due to lumbosacral transitional vertebra (LSTV) still remains a debated topic. Functional imaging with bone scintigraphy has been a valuable adjunct in its assessment; however, in recent years, the additional utility of single-photon emission tomography with computed tomography (SPECT/CT) is evolving as the imaging modality of choice in identifying range of complex lower back pain sources, leading to the provision of suitable treatment options. We present a case demonstrating a variant type of LSTV as a source of pain localized and delineated on hybrid SPECT/CT imaging treated by minimally invasive microendoscopic resection of the pseudoarticulations. PMID- 29033686 TI - Serendipitous Detection of Extraosseous Metastases on Bone Scintigraphy: Utility of Cross-sectional and Correlative Imaging. AB - Whole body bone scintigraphy is most commonly used imaging modality to detect and assess the extent of osteoblastic osseous metastases in malignant conditions, though visceral metastases need additional imaging. The authors describe a case of 50-year-old postoperative breast cancer female where bone scintigraphy showed soft tissue uptake in thorax and hepatic region in addition to multiple skeletal metastases, indicating the involvement of three different organs by metastatic disease. The present case highlights that extraosseous tracer uptake in addition to abnormal osseous tracer uptake may raise the suspicion of widespread and visceral metastatic disease and warrant further evaluation in the form of cross sectional and correlative imaging. PMID- 29033687 TI - Interpretation and Diplomacy Aspects of Authority and Care in Imaging Reports. AB - Whereas the creative performance of the physician for nuclear medicine is measured against his/her written report, the value of the message will not only be judged by the precision of the medical statement. The same result can be attributed to different words. Numerous habitual and accidental factors exert influence on the decision on what is said and what is not said, how it is assessed, and what is ignored. The less certain a diagnosis is, and the less favorable its possible consequences are, the more subtleties and paraphrases should be expected within the report. The decision on the nature and the volume of the written report will not only be taken by the time of recording, but the way is prepared by the knowledge of the patient's history and symptoms, the personal relationship to him/her as well as by a set of conditions throughout the inspection of the images. The intuitiveness accompanying the information transfer in imaging diagnostics does not only explain the differences in volume and depth of diagnosis and differential diagnosis but also the range of diagnostic and therapeutic recommendations. PMID- 29033688 TI - 68Ga-Prostate-specific Membrane Antigen Positron Emission Tomography/Computed Tomography: How Much Specific It Is? PMID- 29033689 TI - Designing local solutions for emptying pit latrines in low-income urban settlements (Malawi). AB - A lack of effective options in local technology poses challenges when onsite household sanitation facilities are eventually filled to capacity in unplanned settlement areas within Mzuzu City, located in northern Malawi. Vacuum trucks currently dominate the market but focus on emptying septic tanks in the more easily accessible planned settlement areas, rather than servicing the pit latrines common in unplanned settlement areas. As a result, households in the unplanned settlement areas within Mzuzu rely primarily on manual pit emptying (i.e., shoveling by hand) or digging a new pit latrine. These practices have associated health risks and are limited by space constraints. This research focused on filling the technological gap through the design, development, and testing of a pedal powered modified Gulper pump using locally available materials and fabrication. A modified pedal powered Gulper technology was developed and demonstrated to be capable of lifting fecal sludge from a depth of 1.5 m with a mean flow rate of 0.00058 m3/s. If the trash content was low, a typical pit latrine with a volume of 1-4 m3 could be emptied within 1-2 h. Based on the findings in our research Phase IV, the pedal powered Gulper modification is promising as a potential emptying technology for lined pit latrines in unplanned settlement areas. The success rate of the technology is about 17% (5 out 30 sampled lined pit latrines were successful) and reflects the difficulty in finding a single technology that can work well in all types of pit latrines with varying contents. We note that cost should not be the only design criteria and acknowledge the challenge of handling trash in pit latrines. PMID- 29033690 TI - Dual EGFR and BRAF blockade overcomes resistance to vemurafenib in BRAF mutated thyroid carcinoma cells. AB - BACKGROUND: BRAF inhibitors are effective anticancer agents in BRAF-mutated melanomas. By contrast, evidences about sensitivity of thyroid carcinomas to BRAF inhibition are conflicting and it has been proposed that BRAF V600E thyroid carcinoma cells are less sensitive to BRAF inhibitors due to activation of parallel signaling pathways. This study evaluated the hypothesis that feedback activation of EGFR signaling counteracts the cytostatic activity of vemurafenib (PLX4032) in BRAF V600E thyroid carcinoma cells. METHODS: Cell proliferation, cell cycle distribution, induction of apoptosis and EGFR and AKT signaling were evaluated in thyroid carcinoma cell lines bearing the BRAF V600E mutation in response to PLX4032. RESULTS: A partial and transient cytostatic response to PLX4032 was observed in thyroid carcinoma cell lines bearing the BRAF V600E mutation, with lack of full inhibition of ERK pathway. Interestingly, the exposure of thyroid carcinoma cells to PLX4032 resulted in a rapid feedback activation of EGFR signaling with parallel activation of AKT phosphorylation. Consistently, the dual inhibition of EGFR and BRAF, through combination therapy with PLX4032 and gefitinib, resulted in prevention of EGFR phosphorylation and sustained inhibition of ERK and AKT signaling and cell proliferation. Of note, the combined treatment with gefitinib and vemurafenib or the exposure of EGFR silenced thyroid carcinoma cells to vemurafenib induced synthetic lethality compared to single agents. CONCLUSIONS: These data suggest that the dual EGFR and BRAF blockade represents a strategy to by-pass resistance to BRAF inhibitors in thyroid carcinoma cells. PMID- 29033692 TI - SEQUENCE SEGMENTATION USING JOINT RNN AND STRUCTURED PREDICTION MODELS. AB - We describe and analyze a simple and effective algorithm for sequence segmentation applied to speech processing tasks. We propose a neural architecture that is composed of two modules trained jointly: a recurrent neural network (RNN) module and a structured prediction model. The RNN outputs are considered as feature functions to the structured model. The overall model is trained with a structured loss function which can be designed to the given segmentation task. We demonstrate the effectiveness of our method by applying it to two simple tasks commonly used in phonetic studies: word segmentation and voice onset time segmentation. Results suggest the proposed model is superior to previous methods, obtaining state-of-the-art results on the tested datasets. PMID- 29033691 TI - Identification of genes and pathways potentially related to PHF20 by gene expression profile analysis of glioblastoma U87 cell line. AB - BACKGROUND: Glioblastoma is the most common and aggressive brain tumor associated with a poor prognosis. Plant homeodomain finger protein 20 (PHF20) is highly expressed in primary human gliomas and its expression is associated with tumor grade. However, the molecular mechanism by which PHF20 regulates glioblastoma remains poorly understood. METHODS: Genome wide gene expression analysis was performed to identify differentially expressed genes (DEGs) in U87 cells with PHF20 gene knockdown. Gene ontology (GO) and pathway enrichment analyses were performed to investigate the functions and pathways of DEGs. Pathway-net and signal-net analyses were conducted to identify the key genes and pathways related to PHF20. RESULTS: Expression of 540 genes, including FEN1 and CCL3, were significantly altered upon PHF20 gene silencing. GO analysis results showed that DEGs were significantly enriched in small molecule metabolic and apoptotic processes. Pathway analysis indicated that DEGs were mainly involved in cancer and metabolic pathways. The MAPK, apoptosis and p53 signaling pathways were identified as the hub pathways in the pathway network, while PLCB1, NRAS and PIK3 s were hub genes in the signaling network. CONCLUSIONS: Our findings indicated that PHF20 is a pivotal upstream regulator. It affects the occurrence and development of glioma by regulating a series of tumor-related genes, such as FEN1, CCL3, PLCB1, NRAS and PIK3s, and activation of apoptosis signaling pathways. Therefore, PHF20 might be a novel biomarker for early diagnosis, and a potential target for glioblastoma therapies. PMID- 29033693 TI - A Case for Data Commons: Toward Data Science as a Service. AB - Data commons collocate data, storage, and computing infrastructure with core services and commonly used tools and applications for managing, analyzing, and sharing data to create an interoperable resource for the research community. An architecture for data commons is described, as well as some lessons learned from operating several large-scale data commons. PMID- 29033694 TI - Reading Development in Typically Developing Children and Children With Prenatal or Perinatal Brain Lesions: Differential School Year and Summer Growth. AB - Summer slide, uneven growth of academic skills over the calendar year, captures the fact that the learning gains children make over the school year do not continue at the same pace over the summer, when children are typically not in school. We compared growth of reading skills during the school year and over the summer months in children with pre-or perinatal brain lesion (PL) and typically developing (TD) children from varying socioeconomic status (SES) backgrounds as a new way to probe the role of structured environmental support in functional plasticity for reading skills in children with PL. Results showed that children with PL performed lower than TD children on both reading decoding and reading comprehension. Group differences were primarily driven by children with larger lesions and children with right hemisphere lesions (RH). For reading comprehension, children with RH showed greater growth during the school year but more slide during the summer months than both TD children and children with left hemisphere lesions, implicating a particularly strong role of structured input in supporting reading comprehension in this group. TD children from lower SES backgrounds fell behind their TD peers from higher SES backgrounds on decoding and reading comprehension, but did not show differential patterns of school year and summer growth. Overall, results highlight the importance of considering the role of a host of factors interacting at multiple levels of analyses, including biological and environmental, in influencing developmental trajectories of typically and atypically-developing children. PMID- 29033695 TI - Sexual health knowledge and stigma in a community sample of HIV-positive gay, bisexual and other men who have sex with men in Puerto Rico. AB - Gay, bisexual and other men who have sex with men (GBMSM) are at increased risk for HIV infection and disease progression. Also, HIV-positive GBMSM are among those less likely to be retained in care. In this study we analyzed sexual health knowledge (SHK) and various manifestations of stigma in a community sample of HIV positive GBMSM in Puerto Rico. The sample reports overall low SHK scores, and lower score were associated with low educational attainment, unemployment, low income, and with self-identifying heterosexual participants. Almost half of the sample reported moderate to severe perceived gay stigma, 68.4% reported moderate to severe hidden-gay stigma, and 30.6% reported moderate to severe HIV-felt stigma. Further research is recommended to obtain culturally congruent information and develop interventions addressing the multiple layers of stigma in the social context where the interventions will be delivered. PMID- 29033696 TI - Spatial Disparity of HIV/AIDS Service Providers: The Case of Miami-Dade County. AB - This paper examines the spatial disparity between the HIV/AIDS service providers and the HIV/AIDS patients. The empirical focus is on Miami-Dade, a large metropolitan county in the United States with a Latino population majority and a high AIDS incidence rate. This exploratory study contributes to the existing literature on geographical access to health providers. Geographic Information System (GIS) is used to examine the spatial disparity between the service providers and the patients. The study reveals that aggregate-level analysis masks the reality of the spatial disparity. Miami Dade County's Health Department focuses on aggregate zones for prioritizing its resources. At this level, there is little spatial disparity. However, evidence of spatial disparity emerges at the ZIP-code-level analysis. The major lesson from the study is that health policies need to be based on a finer-grained analysis to address spatial disparity. PMID- 29033697 TI - Santeria as Informal Mental Health Support Among U.S. Latinos with Cancer. AB - This article explores and examines Santeria's function as a culturally congruent informal mental health support that assists U.S. Latinos to cope with the psychosocial sequelae of living with cancer. Research has demonstrated that Santeria serves as a mediating institution for many Latinos. The tradition functions as both a religion and a health care system within various Latino subgroups and has functioned as an informal mental health service in occurrences of health versus illness. PMID- 29033698 TI - Older Adult Video Game Preferences in Practice: Investigating the Effects of Competing or Cooperating. AB - Video game interventions with the aim to improve cognition have shown promise for both younger (e.g., Powers et al., 2013) and older adults (e.g., Toril, Reales, and Ballesteros, 2014). Most studies suggest that fast-paced action games produce the largest benefits, but a recent video game intervention with older adults found that an action game intervention can result in poor adherence (Boot et al., 2013). To increase intervention adherence, we investigated older adult video game preferences that might bolster adherence by having participants play a competitive game (Mario Kart DS) or a cooperative game (Lego Star Wars: The Complete Saga) alone or with a partner. Although hypotheses regarding cooperative and multi-player gameplay were not supported, converging evidence suggests multi player game play may lead to greater enjoyment, which was related to intervention adherence in a previous study (Boot et al., 2013). Insights for gaming intervention studies in older populations are also provided. PMID- 29033699 TI - Gaming Preferences of Aging Generations. AB - Increasing evidence suggests that action digital game training can improve a variety of perceptual and cognitive abilities, including those that decline most with age. Unfortunately, previous work has found that older adults dislike these games and adherence may be poor for action game-based interventions. The focus of the current study was to better understand the types of games older adults are willing to play and explore predictors of game preference (e.g., gender, age, technology experience, personality). With this information action games might be modified or developed to maximize adherence and cognitive benefit. Older adults were administered a modified version of an existing game questionnaire and a custom game preference survey. Clear preferences were observed that were similar between participants with and without previous digital game experience (with puzzle and intellectually stimulating games being most interesting to older adults in our sample, and massively multiplayer online games and first-person shooters being least interesting). Personality, demographic, and technology experience variables were also collected. Interesting trends suggested the possibility that several demographic and personality variables might be predictive of game preference. Results have implications for future directions of research, designing games that would appeal to older adult audiences, and for how to design custom games to maximize intervention adherence based on individual difference characteristics. PMID- 29033700 TI - Supportive home health care technology for older adults: Attitudes and implementation. AB - Healthcare delivered at home via telehealth technology may save on both individual and societal healthcare costs. Three studies investigated potential attitudinal barriers to home healthcare adoption. Results from the first concerning adults' privacy concerns and mobile device preferences showed that attitudes clustered into 4 factors and that older adults, particularly males, showed less concern than younger adults about privacy. The second and third studies explored comfort with a wearable device and the role of aesthetics over 2 week and 6-month intervals. Results showed that older adults had stable ratings for comfort while wearing a watch device designed to collect data in real time and that aspects of physical comfort predicted use over a six-month time period. Taken together, the studies provide evidence that attitudes about privacy and comfort for wearable health devices are unlikely to be significant barriers to adoption, though first impressions are important for all age groups. PMID- 29033702 TI - Recycling greenhouse gas fossil fuel emissions into low radiocarbon food products to reduce human genetic damage. AB - Radiocarbon from nuclear fallout is a known health risk. However, corresponding risks from natural background radiocarbon incorporated directly into human genetic material have not been fully appreciated. Here we show that the average person will experience between 3.4 * 1010 and 3.4 * 1011 lifetime chromosomal damage events from natural background radiocarbon incorporated into DNA and histones, potentially leading to cancer, birth defects, or accelerated aging. This human genetic damage can be significantly reduced using low radiocarbon foods produced by growing plants in CO2 recycled from ordinary industrial greenhouse gas fossil fuel emissions, providing additional incentive for the carbon sequestration. PMID- 29033704 TI - Sedative and hypnotic effects of Iranian traditional medicinal herbs used for treatment of insomnia. AB - For tens of centuries, plants have been highly valued and regularly used as medicine amongst the masses. Insomnia, a loss of sleep, is mostly treated by synthetic sleeping tablets these days. However, questions have been raised about the safety of prolonged use of artificial sedatives due to their deleterious side effects such as physical dependence. In recent years, there has been an increasing propensity to preclude insomnia by herbal medicines throughout the world. Many herbs have a lengthy background in terms of insomnia treatment in Iran. This paper gives an account of previously published research on sedative and hypnotic effects of medicinal herbs used for treatment of insomnia in Iranian traditional medicine. PMID- 29033705 TI - Two cases of bronchiolitis obliterans organizing pneumonia syndrome after postoperative irradiation for breast cancer. AB - We report two cases of bronchiolitis obliterans organizing pneumonia (BOOP) syndrome that developed after postoperative radiation therapy for breast cancer. In both patients, chest radiographs and computed tomography (CT) showed multiple consolidations outside the irradiation fields after several months of tangential radiation therapy. These patients were diagnosed as having radiation-associated BOOP syndrome, based on their clinical course and the findings on examination. After treatment with a systemic corticosteroid, radiographic consolidations and symptoms improved rapidly. In cases where consolidations appear outside the irradiated field, it is important to consider BOOP syndrome as a pulmonary complication of radiation therapy for breast cancer. PMID- 29033701 TI - Monitoring of environmental exposure to polycyclic aromatic hydrocarbons: a review. AB - Polycyclic aromatic hydrocarbons (PAHs) are a large group of organic compounds with two or more fused aromatic rings. They have a relatively low solubility in water, but are highly lipophilic. Most of the PAHs with low vapour pressure in the air are adsorbed on particles. When dissolved in water or adsorbed on particulate matter, PAHs can undergo photodecomposition when exposed to ultraviolet light from solar radiation. In the atmosphere, PAHs can react with pollutants such as ozone, nitrogen oxides and sulfur dioxide, yielding diones, nitro- and dinitro-PAHs, and sulfonic acids, respectively. PAHs may also be degraded by some microorganisms in the soil. PAHs are widespread environmental contaminants resulting from incomplete combustion of organic materials. The occurrence is largely a result of anthropogenic emissions such as fossil fuel burning, motor vehicle, waste incinerator, oil refining, coke and asphalt production, and aluminum production, etc. PAHs have received increased attention in recent years in air pollution studies because some of these compounds are highly carcinogenic or mutagenic. Eight PAHs (Car-PAHs) typically considered as possible carcinogens are: benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene (B(a)P), dibenzo(a,h)anthracene, indeno(1,2,3-cd)pyrene and benzo(g,h,i)perylene. In particular, benzo(a)pyrene has been identified as being highly carcinogenic. The US Environmental Protection Agency (EPA) has promulgated 16 unsubstituted PAHs (EPA-PAH) as priority pollutants. Thus, exposure assessments of PAHs in the developing world are important. The scope of this review will be to give an overview of PAH concentrations in various environmental samples and to discuss the advantages and limitations of applying these parameters in the assessment of environmental risks in ecosystems and human health. As it well known, there is an increasing trend to use the behavior of pollutants (i.e. bioaccumulation) as well as pollution induced biological and biochemical effects on human organisms to evaluate or predict the impact of chemicals on ecosystems. Emphasis in this review will, therefore, be placed on the use of bioaccumulation and biomarker responses in air, soil, water and food, as monitoring tools for the assessment of the risks and hazards of PAH concentrations for the ecosystem, as well as on its limitations. PMID- 29033706 TI - Antibacterial activity of different parts of Peganum harmala L. growing in Iran against multi-drug resistant bacteria. AB - Peganum harmala L. (Zygophyllaceae) is one of the most famous medicinal plants used in traditional medicine of Iran. The aim of this study was to consider antibacterial effects of the methanolic extract of different parts of P. harmala including root, stem, leaf, flower and seed against some important human pathogenic bacteria. Antibacterial properties of methanolic extract of mentioned parts were assessed by disc diffusion method. Active extract was fractioned using Thin Layer Chromatography; also their synergism activity in combination with synthetic antibiotic was evaluated. Among the evaluated parts of P. harmala, the root and seed extracts presented antibacterial activity against all of tested bacteria even at the lowest concentration. Antibacterial effect of leaf part was moderate while stem and flower extracts showed relatively poor activity. Antibacterial activity of root extract against most of the tested Gram positive bacteria was better than seed extract. Tested against Gram negative bacteria the obtained results were inconsistent. MIC (Minimal Inhibitory Concentration) and MBC (Minimal Bactericidal Concentration) values for both extracts against MRSA (Methicillin Resistant Staphylococcus aureus) and for seed extract against E. coli and S. typhi were equal (0.625 mg/ml). TLC (Thin Layer Chromatography) results revealed that seed and root extracts were different in terms of nature and content of their constituents. Furthermore, these two extracts showed an excellent stability to temperature and pH treatment. Also, the seed and root extracts showed synergism in combination with novobiocin, colistin and carbenicillin. In conclusion, P. harmala can be assigned as a source of antibacterial compounds for treatment of infections caused by multi-drug resistant (MDR) bacterial pathogens. PMID- 29033703 TI - Dark nights behind the white clouds - risks of tobacco smoking on human health besides the oral health and malignancy. AB - Tobacco smoking is the common practice in a large percentage of the population worldwide, and the incidence is continuously increasing. Tobacco smoking is the most preventable cause of lung cancer, and it also impairs oral health. People are aware of the carcinogenic effects of tobacco smoking on the lungs and oral cavity, but it is also a risk factor for many other harmful diseases. This review article covers most of the diseases that are associated with tobacco smoking, such as coronary artery disease (CAD), diabetes, chronic obstructive pulmonary disease (COPD), arthritis, impotency, infertility, tuberculosis, and Alzheimer's disease. The association of these diseases with tobacco smoking is discussed in detail in this review, along with their possible pathophysiology. This article focuses on the ongoing research of these diseases, and aims to raise awareness of the hazards of tobacco smoking, and to promote anti-smoking awareness programs. PMID- 29033707 TI - Chemical composition and antioxidant potentials of Kigelia pinnata root oil and extracts. AB - The chemical composition of Kigelia pinnata root oil extracted with n-hexane was analyzed by GC/GCMS. The antioxidant potential of the oil was compared to that of ethyl acetate and methanol extracts of the root. UV and IR spectroscopic techniques were used to carry out partial characterization of the oil and extracts. The free radical scavenging activity by spectrophotometric assay on the reduction of 1,1-diphenyl-2-picrylhydrazyl (DPPH) was examined while the total antioxidant activity (TAA) and relative antioxidant activity (RAA) were compared with standard antioxidant, alpha-tocopherol. The antioxidant activity (which correlated with the total phenolic content of the extracts) was assumed to be from the total phenolic content of the extracts. TAA was found to be higher in methanol extract (at 0.25 mg/mL). We hereby report for the first time the major component of the oil from the root of Kigelia pinnata to be elaidic acid (56.12 %). It is a reported toxicant which thereby underscores the risk in the use of the plant in traditional therapies. PMID- 29033708 TI - Essential oil composition and antimicrobial activity of Lobelia pyramidalis Wall. AB - The essential oil of Lobelia pyramidalis was analyzed by GC and GC-MS. A total of 21 constituents comprising 77.88 % of the total oil were identified. Perilla ketone constituted 25.61 % of the oil followed by camphorquinone (12.16 %), dibutyl phthalate (10.66 %) and allyl nonanoate (8.47 %). The antimicrobial activity of the oil was evaluated using the disc diffusion method and the microdilution technique. The results showed that the oil exhibited moderate antimicrobial activity. PMID- 29033709 TI - Hepatoprotective effect of an aqueous extract of the leaves of Acalypha wilkesiana 'Godseffiana' Muell Arg (Euphorbiaceae) against carbon tetrachloride induced liver injury in rats. AB - The potential of aqueous extract of the leaves of Acalypha wilkesiana, to protect against carbon tetrachloride induced liver damage was investigated in Wistar albino rats. The carbon tetrachloride was prepared 1:5 (v:v) in olive oil, and administered subcutaneously at 1 mL/kg body weight. The extract was administered to both normal and carbon tetrachloride treated rats at 100, 200 and 300 mg/kg. On fractionation and gas chromatographic analysis of the crude aqueous extract, thirty nine known alkaloids were detected, consisting mainly of akuamidine (69.027 %), voacangine (26.226 %), echitamine (1.974 %), echitamidine (0.599 %), lupanine (0.521 %) and augustamine (0.278 %). Compared to test control, the treatment dose dependently produced significantly lower (P<0.05) alkaline phosphatase, aspartate and alanine transaminase activities. Histopathological studies on the liver sections showed that pre-treatment with the extract protected against carbon tetrachloride induced fatty degeneration of hepatocytes, thus, confirming the results of the biochemical studies. The above results imply that treatment with the plant extract protects the liver against carbon tetrachloride induced hepatotoxicity, therefore, justifying the use of Acalypha wilkesiana in African traditional health care for the management of liver problems. PMID- 29033711 TI - Linear chain aldehydes evoke calcium responses in B16 melanoma cells. AB - Oxidative stress is involved in various physiological impairing stages, such as aging, diabetes, atherosclerosis, cirrhosis, and neurological disorders. Recent research indicates that aldehyde compounds derived from oxidized lipids increase in cancer patients compared to healthy individuals. Among of them, hexanal, a six carbon liner chain aldehyde, is commonly found in cancer patients. Lipid oxidation products including aldehydes are in general chemically unstable and react with biological molecules such as proteins. The purpose of this study is to investigate effects of lipid-derived aldehydes and the related compounds on intracellular Ca2+ responses in B16 melanoma cells. Hexanal-induced [Ca2+]i elevation is observed in B16 cells in a dose dependent manner, but [Ca2+]i changes were observed neither in 3T3-L1 cells nor Caco-2 cells. Propanal, a chain length analogue of hexanal, elicited no change in [Ca2+]i, but nonanal initiated [Ca2+]i increases. Analogue compounds of hexanal failed to induce [Ca2+]i elevation. Furthermore, unsaturated aldehydes known as TRPA1 channel agonists also failed to alter [Ca2+]i levels in B16 melanoma cells. Pharmacological spectra using inhibitors against intracellular Ca2+ signaling suggest that hexanal-induced [Ca2+]i responses in B16 cells might be involved in TRP channels other than TRPA1. Our results suggest that saturated aliphatic chain aldehydes would be novel compounds for initiating [Ca2+]i increases through very strict recognitions of chain saturation, aldehydic base structures, and chain lengths in B16 melanoma cells. B16 cells would have sensing mechanisms for oxidative status and/or metabolic activities in their growth environment. PMID- 29033710 TI - The effect of different antidepressant drugs on oxidative stress after lipopolysaccharide administration in mice. AB - This study investigated the effect of the serotonin selective reuptake inhibitors (SSRIs) fluoxetine, sertraline, fluvoxamine and the tricyclic antidepressant (TCA) impiramine on oxidative stress in brain and liver induced by lipopolysaccharide administration in mice. Each drug was administered subcutaneously at doses of 10 or 20 mg/kg, for two days prior to intraperitoneal (i.p.) administration of lipopolysaccharide E (LPS: 200 ug/kg). Mice were euthanized 4 h after administration of the lipopolysaccharide. Lipid peroxidation (malondialdehyde; MDA), reduced glutathione (GSH) and nitric oxide (nitrite/nitrate) concentrations were measured in brain and liver. Results: The administration of lipopolysaccharide increased oxidative stress in brain and liver; it increased brain MDA by 36.1 and liver MDA by 159.8 %. GSH decreased by 34.1 % and 64.8 % and nitric oxide increased by 78.7 % and 103.8 % in brain and liver, respectively. In brain, MDA decreased after the administration of sertraline and by the lower dose of fluoxetine or fluvoxamine, but increased after the higher dose of imipramine. Reduced glutathione increased after sertraline, fluvoxamine and the lower dose of fluoxetine or imipramine. Nitric oxide decreased by sertraline, fluoxetine, fluvoxamine and by the lower dose of imipramine. In the liver, all drugs decreased MDA and increased GSH level. Nitric oxide is decreased by sertraline, fluvoxamine and by the lower dose of fluoxetine or imipramine. It is concluded that, during mild systemic inflammatory illness induced by peripheral bacterial endotoxin injection, the SSRIs fluoxetine, sertraline and fluvoxamine reduced, while the TCA impiramine increased oxidative stress induced in the brain. The SSRIs as well as imipramine reduced oxidative stress due to lipopolysaccharide in liver tissue. PMID- 29033712 TI - Protective effect of aqueous extract of the rhizomes of Sansevieria liberica Gerome and Labroy on carbon tetrachloride induced hepatotoxicity in rats. AB - The ability of an aqueous extract of the rhizomes of Sansevieria liberica to protect against carbon tetrachloride induced liver injury was investigated in Wistar albino rats. The carbon tetrachloride was prepared 1:5 (v:v) in olive oil, and administered subcutaneously at 1 mL/kg body weight. The extract was administered to both normal and carbon tetrachloride treated rats at 100, 200 and 300 mg/kg. On gas chromatographic analysis of the extract, twenty nine known flavonoids were detected, consisting mainly of 31.94 % apigenin, 20.66 % quercetin, 11.28 % kaempferol, 5.99 % naringenin, 5.83 % (-)-epicatechin, 3.69 % biochanin, 3.58 % (+)-catechin, 2.72 % diadzein, 2.20 % ellagic acid, 2.04 % butein. Compared to test control, the treatment dose dependently produced significantly (P<0.05) lower alkaline phosphatase, aspartate transaminase and alanine transaminase activities. The plasma total bilirubin and total protein levels of the test animals were lower though not significantly. The hepatic histopathological studies showed that carbon tetrachloride caused fatty degeneration of hepatocytes, which was inhibited by pre-treatment with the extract; thus, confirming the results of the biochemical studies. The results of this study indicated that treatment with the plant extracts protects the liver against carbon tetrachloride induced hepatotoxicity. This supports the use of Sansevieria liberica in traditional health care for managing liver problems. PMID- 29033713 TI - The role of liver in leptin metabolism in experimental nephrotic syndrome. AB - Leptin is a hormone influencing food intake, energy expenditure and body weight. It is produced by adipocytes, exerts its effects on brain, endocrine pancreas and other organs by activating trans-membrane receptors and is cleared from plasma mainly by the kidneys. Several studies have suggested that leptin's effects on metabolism are mediated by the liver. Our aim was to evaluate the role of the liver in the metabolism of leptin by comparing the serum leptin level in the portal vein with that in inferior vena cava and to study the relationship between leptin and lipoprotein levels in healthy and nephrotic rats. Experimental nephrotic syndrome was conducted in rats by intraperitoneal injection of the supernatant from the kidney suspension obtained by previous unilateral nephrectomy of the same rat and complete Freund's adjuvant. There was a highly significant rise in leptin and lipid profile levels in the nephrotic rats compared with the normal rats. A highly significant increase in leptin in the inferior vena cava was detected compared with the level in the portal veins of nephrotic rats, while insignificant difference was observed in normal rats. This work has stressed the role of liver in leptin and lipid metabolism in nephrotic rats. PMID- 29033714 TI - Design of Strain-Limiting Substrate Materials for Stretchable and Flexible Electronics. AB - Recently developed classes of electronics for biomedical applications exploit substrates that offer low elastic modulus and high stretchability, to allow intimate, mechanically biocompatible integration with soft biological tissues. A challenge is that such substrates do not generally offer protection of the electronics from high peak strains that can occur upon large-scale deformation, thereby creating a potential for device failure. The results presented here establish a simple route to compliant substrates with strain-limiting mechanics based on approaches that complement those of recently described alternatives. Here, a thin film or mesh of a high modulus material transferred onto a prestrained compliant substrate transforms into wrinkled geometry upon release of the prestrain. The structure formed by this process offers a low elastic modulus at small strain due to the small effective stiffness of the wrinkled film or mesh; it has a high tangent modulus (e.g., >1000 times the elastic modulus) at large strain, as the wrinkles disappear and the film/mesh returns to a flat geometry. This bilinear stress-strain behavior has an extremely sharp transition point, defined by the magnitude of the prestrain. A theoretical model yields analytical expressions for the elastic and tangent moduli and the transition strain of the bilinear stress-strain relation, with quantitative correspondence to finite element analysis and experiments. PMID- 29033715 TI - Has goal directed fluid therapy and glycocalyx a role in enhanced recovery after anesthesia? PMID- 29033716 TI - Transdermal fentanyl as an adjuvant to paravertebral block for pain control after breast cancer surgery: A randomized, double-blind controlled trial. AB - OBJECTIVE: The aim of this study is to investigate the effect of transdermal fentanyl (TDF) as an adjuvant to paravertebral block (PVB) for pain control after breast cancer surgery. PATIENTS AND METHODS: This randomized, double-blind trial included fifty females with breast cancer scheduled for surgery. They were randomly allocated into one of two equal groups. The TDF group used transdermal fentanyl patches (TFPs) 25 MUg/h applied 10 h preoperative then PVB with 20 mL of bupivacaine 0.25% was done before induction of general anesthesia. The PVB group used placebo patches in addition to PVB the same way as TDF group. Postoperative pain was assessed with a visual analog scale (VAS) score up to 48 h. Intravenous morphine 0.1 mg/kg was given when the VAS is >= 3 or on patient request. The primary outcome measures were the time to first request for analgesia and the total analgesic consumption in the first 48 h. RESULTS: Relative to the VAS score reading was 30 min. After the end of surgery, VAS score decreased significantly in the two groups up to 48 postoperative hours and was significantly lower in TDF group up to 24 h. The time to first request of additional analgesia was significantly longer, and total dose of morphine consumption was significantly lower in TDF group (P < 0.001, and P = 0.039, respectively). CONCLUSION: TFPs releasing 25 MUg/h is a safe and effective adjuvant to PVB after breast cancer surgery. It provides adequate analgesia with reduction of opioid consumption and minimal adverse effects. PMID- 29033717 TI - Comparison of oropharyngeal leak pressure of air-QTM, i-gelTM, and laryngeal mask airway supremeTM in adult patients during general anesthesia: A randomized controlled trial. AB - STUDY OBJECTIVE: Various randomized controlled trials and a meta-analysis have compared i-gelTM and laryngeal mask airway SupremeTM (LMA-STM) in adult patients and found that both the devices provided equivalent oropharyngeal leak pressure (OLP). However, no randomized controlled trial has compared air-QTM with i-gelTM and LMA-STM in adult patient. Hence, we designed this study to compare air-QTM with LMA-STM and i-gelTM in adult patients. MATERIALS AND METHODS: A total of 75 adult patients of the American Society of Anesthesiologists physical status I/II of both sexes, between 18 and 60 years, were included in this prospective randomized controlled trial conducted in a tertiary care center. Randomization of patients was done in three equal groups according to the insertion of supraglottic airway device by a computer-generated random number sequence: group air-QTM (n = 25), group i-gelTM (n = 25), and group LMA-STM (n = 25). Primary outcome of this study was OLP. We also recorded time for successful placement of device, ease of device insertion, number of attempts to insert device, and ease of gastric tube insertion along with postoperative complications. RESULTS: The mean +/- standard deviation OLP of air-QTM, i-gelTM, and LMA-STM was 26.13 +/- 4.957 cm, 23.75 +/- 5.439 cm, and 24.80 +/- 4.78 cm H2O (P = 0.279). The first insertion success rate for air-QTM, i-gelTM, and LMA-STM was 80%, 76%, and 92%, respectively (P = 0.353). The insertion time of air-QTM, i-gelTM, and LMA-STM was 20.6 +/- 4.4, 14.8 +/- 5.4, and 15.2 +/- 4.7 s, respectively (P = 0.000). Time taken for air-QTM insertion was significantly higher than time taken for i-gelTM (mean difference 5.8 s, P < 0.0001) and LMA-STM (mean difference 5.4 s, P = 0.0001) insertion. Postoperative complications were similar with all three devices. CONCLUSIONS: We concluded that air-QTM, i-gelTM, and LMA-STM were equally efficacious in terms of routine airway management in adult patients with normal airway anatomy. PMID- 29033718 TI - A randomized comparative study assessing efficacy of pain versus comfort scores. AB - CONTEXT: Use of language with negative emotional content is likely to increase patient's pain and anxiety. AIMS: We designed a single-blinded randomized study to compare pain scores with comfort scores and to determine whether the technique of pain assessment affects patient's perceptions and experience. SUBJECTS AND METHODS: After cesarean section, 180 women were randomized before postanaesthesia interview into two groups. Group P women were asked to rate their pain on a 0-10 point verbal numerical rating scale (VNRS) for pain while Group C women were asked to rate their comfort on a 0-10-point VNRS for comfort. All women were asked whether the surgical wound was associated with injury or healing. The primary outcomes were to compare the incidence of reported pain and to assess pain severity as measured by a 0-10-point VNRS for pain compared with an equivalent inverted VNRS for comfort. The secondary outcomes were whether the wound was associated with injury or healing. STATISTICAL ANALYSIS USED: Data were analyzed using Student's t-test and nonparametric Mann-Whitney U-test, performed at a significance level of alpha =0.05. RESULTS: In Group P, 62 women (68.9%) reported pain compared with only 49 women (54.4%) in Group C (P < 0.05). There were no significant differences between groups for VNRS at rest and on movement. In Group P, thirty women (33.33%) reported sensations as injury compared with only 11 women (12.22%) in Group C (P < 0.001). CONCLUSIONS: Assessment of pain using positive word like comfort decreases its incidence with no effect on its severity when measured by comfort score and also affects patient's postsurgical perceptions. PMID- 29033719 TI - Epidemiology and characteristics of nosocomial infections in critically ill patients in a tertiary care Intensive Care Unit of Northern India. AB - BACKGROUND AND AIMS: The prevalence of nosocomial infection is higher in the Intensive Care Unit (ICU) than other areas of the hospital. The present observational study was undertaken to describe the epidemiology and characteristics of nosocomial infections acquired in a tertiary care ICU and the impact of the various risk factors in their causation. MATERIALS AND METHODS: A retrospective study was conducted on the prospectively collected data of 153 consecutive patients admitted in a tertiary care ICU between July 2014 and December 2015. The primary objective was to assess the epidemiology of ICU acquired bacterial infections in terms of the incidence of new infections, causative organism, and site. The secondary end point was to assess the risk factors for developing ICU-acquired infections. RESULTS: Out of the 153 patients enrolled in the study, 87 had an ICU-acquired nosocomial infection (58.86%). The most common organism responsible for infection was Klebsiella pneumoniae (37%), and the most common infection was pneumonia (33%). The duration of mechanical ventilation and length of ICU stay were significantly prolonged in patients developing nosocomial infections. There was no difference in mortality between the groups. The multivariate analyses identified intubation longer than 7 days, urinary catheterization >7 days, duration of mechanical ventilation more than 7 days, and ICU length of stay longer than 7 days as independent risk factors for nosocomial infections. CONCLUSION: The study demonstrated a high incidence of nosocomial infection in the ICU and identified the risk factors for acquisition of nosocomial infections in the ICU. PMID- 29033720 TI - Reducing by 50% the incidence of maternal hypotension during elective caesarean delivery under spinal anesthesia: Effect of prophylactic ondansetron and/or continuous infusion of phenylephrine - a double-blind, randomized, placebo controlled trial. AB - BACKGROUND: Prophylactic administrations of ondansetron or phenylephrine have been reported to provide a protective effect against hypotension in women undergoing cesarean delivery under spinal anesthesia (SA). The main hypothesis is that ondansetron improves the hemodynamic response, especially combined with phenylephrine infusion. METHODS: This prospective, double-blind, randomized, placebo-controlled study included 265 healthy pregnant women scheduled for elective cesarean delivery under SA. Women were randomly allocated into four groups to receive either placebo (control), ondansetron (O) 8 mg intravenously before induction of SA, phenylephrine infusion (50 mcg/min) (P) or ondansetron plus phenylephrine (OP). Demographic, obstetric, intraoperative timing, and anesthetic variables were assessed at 16 time points. Anesthetic variables assessed included blood pressure, heart rate, oxygen saturation, nausea, vomiting, electrocardiographic changes, skin flushing, discomfort or pruritus, and vasopressor requirements. RESULTS: There were differences (P = 0.0001) in the number of patients with hypotension (50.8% control, 44.6% O, 20.9% P, 25.0% OP), the percentage of time points (P = 0.0001) with systolic hypotension per patient (17.4% control, 8.7% O, 2.1% P, 6.7% OP) and the number of patients requiring supplementary boluses of ephedrine (P = 0.003), phenylephrine (P = 0.017) or atropine (P = 0.0001). CONCLUSIONS: A 50 MUg/min phenylephrine infusion reduces by 50%, the incidence of maternal hypotension compared with placebo, but infusions of phenylephrine are still not routine in our environment. Prophylactic ondansetron 8 mg might be considered in this situation, because it does not reduce the incidence of maternal hypotension but diminishes its severity, reducing the number of hypotensive events per patient by 50%. PMID- 29033721 TI - An audit of in-hospital cardiopulmonary resuscitation in a teaching hospital in Saudi Arabia: A retrospective study. AB - OBJECTIVES: Data reflecting cardiopulmonary resuscitation (CPR) efforts in Saudi Arabia are limited. In this study, we analyzed the characteristics, and estimated the outcome, of in-hospital CPR in a teaching hospital in Saudi Arabia over 4 years. METHODS: A retrospective, observational study was conducted between January 2009 and December 2012 and included 4361 patients with sudden cardiopulmonary arrest. Resuscitation forms were reviewed. Demographic data, resuscitation characteristics, and survival outcomes were recorded. RESULTS: The mean +/- standard deviation age of arrested patient was 40 +/- 31 years. The immediate survival rate was 64%, 43% at 24 h, and 30% at discharge. The death rate was 70%. Respiratory type of arrest, time and place of arrest, short duration of arrest, witnessed arrest, the use of epinephrine and atropine boluses, and shockable arrhythmias were associated with higher 24-h survival rates. A low survival rate was found among patients with cardiac types of arrest, and those with a longer duration of arrest, pulseless electrical activity, and asystole. Comorbidities were present in 3786 patients with cardiac arrest and contributed to a poor survival rate (P < 0.001). CONCLUSIONS: The study confirms the findings of previously published studies in highly developed countries and provides some reflection on the practice of resuscitation in Saudi Arabia. PMID- 29033722 TI - Effect of intravenous phenylephrine infusion on dose requirement of intrathecal plain levobupivacaine for cesarean section: A placebo-controlled preliminary study. AB - BACKGROUND: Phenylephrine infusion has been shown to decrease rostral spread of plain and hyperbaric local anesthetic (LA) when compared to ephedrine infusion. However, it does not result in higher dose requirement of hyperbaric LA for cesarean section. There is no trial evaluating the effect of phenylephrine infusion on ED50 of a plain intrathecal LA. METHODS: Pregnant patients with term uncomplicated singleton pregnancy undergoing elective cesarean section were given combined spinal-epidural anesthesia. They received intrathecal plain levobupivacaine 0.5% in a dose decided by up-and-down sequential allocation method along with 25 MUg fentanyl. Intravenous infusion of phenylephrine (100 MUg/ml) or normal saline was initiated immediately after intrathecal injection. Systolic arterial pressure <=0.8 times baseline was treated using rescue boluses of phenylephrine 50 MUg. RESULTS: Demographic, other patient and surgical characteristics were similar in the two groups. ED50 of intrathecal plain levobupivacaine was significantly greater in phenylephrine group (5.5 mg [95% confidence interval (CI): 5.1-5.9 mg]) compared to saline group (4.2 mg [95% CI: 3.4-5.1 mg]) (P = 0.01). Maximum sensory level, time to achieve adequate block, Apgar scores, and umbilical artery pH were similar in both groups. Total phenylephrine dose and patients having significant bradycardia were lesser in the saline group. CONCLUSIONS: Intrathecal dose requirement of plain levobupivacaine is greater using phenylephrine infusion as compared to saline infusion with rescue phenylephrine boluses. When using phenylephrine as a variable dose regimen titrated to maintain blood pressure within 20% of baseline, the ED50 of plain levobupivacaine is 5.5 mg (95% CI: 5.1-5.9 mg). PMID- 29033723 TI - Postoperative pain management in patients undergoing thoracoscopic repair of pectus excavatum: A retrospective analysis of opioid consumption and adverse effects in adolescents. AB - INTRODUCTION: Although the Nuss procedure provides excellent cosmetic results for the correction of pectus excavatum, the provision of analgesia following such procedures can be challenging. METHODS: The current study retrospectively reviews our experience over a 2.5 year period with thoracic epidural analgesia (TE), paravertebral blockade (PVB), and intravenous opioids delivered via patient controlled analgesia (PCA) to provide postoperative analgesia. RESULTS: The study cohort included 30 patients (mean age = 15.6 +/- 1.5 years), 15 of whom were treated with PCA, 8 with TE, and 7 with PVB. There were no significant differences in pain scores between the 3 groups at any time point during the first 3 postoperative days. Compared to PCA, the PVB group had lower opioid consumption over the first 24 hours of hospitalization by 1.7 mg/kg morphine equivalents (95% CI of difference: 0.1, 3.3; p=0.035); but had higher opioid consumption by 2.0 mg/kg morphine equivalents than the TE group (95% CI of difference: 0.3, 3.7; p=0.024). There were no differences in opioid consumption between PVB and PCA or between PVB and TE at 48 or 72 hours. The number of intraoperative hypotension episodes was significantly lower in the PCA group when compared to the PVB group (p=0.001), with no difference between the PVB and TE groups. CONCLUSIONS: The use of regional anesthesia should be considered a viable option for the relief of postoperative pain in pediatric patients following the Nuss procedure albeit with a higher incidence of intraoperative hemodynamic effects. A randomized, prospective, study powered to compare all 3 techniques against one another would be necessary to confirm the significance of these findings. PMID- 29033724 TI - Comparison of laryngeal tube suction II and proseal LMATM in pediatric patients, undergoing elective surgery. AB - BACKGROUND: Supraglottic airway devices now have an established place in pediatric anesthesia practice. The laryngeal tube suction (LTS) II, a recent revision of the LTS, has very few studies evaluating its use in pediatric patients. The aim of this study was to compare insertion and ventilation profiles of the LTS-II size 2 and the ProSealTM Laryngeal Mask Airway (PLMA) size 2 in pediatric patients undergoing elective surgeries. MATERIALS AND METHODS: A randomized prospective study was conducted in 100 children aged 2-5 years between 12 and 25 kg weight, of the American Society of Anesthesiologists physical status I and II scheduled for routine elective surgeries of <90 min duration. They were randomly divided into two groups of 50 each, depending on the device inserted, and a standard protocol for anesthesia was followed. Outcome measures were studied in terms of ease and time of insertion, oxygen saturation (SpO2), oropharyngeal seal pressure (OSP), and ventilation failures. RESULTS: Both groups were well matched in terms of age, weight, and type of surgery. The success rate for the first attempt was 90% for both the LTS-II group and PLMA group. Insertion was found to be easy in the majority of cases in both groups, and there was no statistical difference in blood pressure, heart rate, or SpO2 on insertion. However, the OSP was significantly more in LTS-II and PLMA (P < 0.001). There were no clinically important complications in the postoperative period. CONCLUSIONS: Pediatric size 2 LTS-II is easy to insert and provides higher OSP compared with same size PLMA in anesthetized and paralyzed children undergoing elective surgery. It is a safe alternative to PLMA in short duration elective surgeries and may be a better device as it provides for higher OSPs. PMID- 29033725 TI - Assessment of patient-controlled analgesia versus intermittent opioid therapy to manage sickle-cell disease vaso-occlusive crisis in adult patients. AB - BACKGROUND: Vaso-occlusive crisis (VOC) is one of the acute complications of sickle-cell disease (SCD). Treatment mainly relies on hydration and pain control by analgesics. The specific aim of this study was to assess potential health outcomes within the first 72 h of admission between intermittent and patient controlled analgesia (PCA) by opioids among VOC patients. METHODS: A retrospective chart review study was conducted to determine SCD patients with VOC. Using the hospital electronic system, the following data were collected: patient's age, gender, blood pressure, heart rate, respiratory rate, oxygen saturation, and pain score on admission and daily for 3 days as well as the cumulative opioid analgesic dose for 72 h which is reported as morphine equivalent. RESULTS: One hundred and seventeen patients were screened over a period of 5 years. Of those, 99 (84.6%) met the study inclusion criteria, and 18 patients (15.4%) were excluded from the study. During the first 72 h of admission, a significant reduction in pain score was observed in patients on intermittent intravenous (IV) administration compared to those in the PCA group (P < 0.0004) where the mean pain scores were 3 and 5, respectively. The total amount of morphine administered over 72 h of admission was significantly higher in PCA group (777 +/- 175 mg) as compared to the intermittent IV administration group (149 +/- 74 mg) (P < 0.000003). Clinically significant hypotension or respiratory depression was not observed in both groups over the 72 h of admission. CONCLUSION: During the first 72 h of admission, intermittent IV administration of morphine was more effective than PCA infusion in pain control. PMID- 29033726 TI - Ultrasound-guided multilevel paravertebral block versus local anesthesia for medical thoracoscopy. AB - BACKGROUND: Local anesthetic infiltration for medical thoracoscopy has an analgesic properties for short duration. Single injection thoracic paravertebral block (PVB) provides limited analgesia. PURPOSE: Comparison between thoracic PVB performed at two or three levels with local infiltration for anesthetic adequacy in adult medical thoracoscopy as a primary outcome and postthoracoscopic analgesia and pulmonary function as secondary outcomes for adult medical thoracoscopy. PATIENTS AND METHODS: Prospective randomized control study included 63 adult patients with exudative pleural effusion randomly divided into three groups of 21 patients: 3-level PVB, 2-level PVB group, and local infiltration group. Patients with contraindications to regional anesthesia or uncontrolled comorbidities were excluded from the study. Pain visual analog scale and spirometry were used for comparison as anesthetic adequacy in adult medical thoracoscopy as a primary outcome besides prolonged analgesia and improved pulmonary function as secondary outcomes. RESULTS: The anesthetic adequacy was 95.3% in 3-level PVB group, 81% in 2-level PVB group, and 71.5% in local infiltration group. The mean sensory level was 1 +/- 0.8 and 1 +/- 0.6 segment above and 0.8 +/- 0.6 and 0.7 +/- 0.7 segment below the injected level in 3-level PVB group and 2-level PVB, respectively. VAS was statistically significant higher in local infiltration compared to the other two groups immediately postthoracoscopic and 1 h after. Two-hour postthoracoscopy, significant increase in forced vital capacity values in the three groups compared to their basal values whereas forced expiratory volume at 1 s (FEV1) only in both PVB groups. CONCLUSION: Unilateral 3-level TPVB was superior to 2-level TPVB and LA infiltration for anesthetic adequacy for patients undergoing medical thoracoscopy. Moreover, US-guided TPVB was followed by higher FEV1 values and lower pain scores during the next 12 h postthoracoscopy in comparison to local infiltration, so 3-level TPVB is an effective and relatively safe anesthetic technique for adult patients undergoing medical thoracoscopy which may replace local anesthesia. PMID- 29033727 TI - Ultrasound assessment of cranial spread during caudal blockade in children: Effect of different volumes of local anesthetic. AB - BACKGROUND: Ultrasound-guided caudal block injection is a simple, safe, and effective method of anesthesia/analgesia in pediatric patients. The volume of caudal drug required has always been a matter of debate. MATERIALS AND METHODS: This present prospective, randomized, double-blinded study aimed to measure extent of the cranial spread of caudally administered levobupivacaine in Indian children by means of real-time ultrasonography. Ninety American Society of Anesthesiologists I/II children scheduled for urogenital surgeries were enrolled in this trial. Anesthesia and caudal analgesia were administered in a standardized manner in the patients. The patients received 0.5 ml/kg or 1 ml/kg or 1.25 ml/kg of 0.125% levobupivacaine according to the group allocated. Cranial spread of local anesthetic was noted using ultrasound. RESULTS: There was no difference in the spread when related to age, sex, weight, or body mass index. A significant difference of ultrasound-assessed cranial spread of the local anesthetic was found between Group 1 (0.5 ml/kg) with both Group 2 (1 ml/kg) (P = 0.001) and with Group 3 (1.125 ml/kg) (P < 0.001) but there is no significant difference between Group 2 and Group 3 (P = 0.451) revealing that spinal level spread is only different between 0.5 ml/kg and 1 ml/kg of local anesthetic. CONCLUSION: In conclusion, the ultrasound assessment of local anesthetic spread after a caudal block showed that cranial spread of the block is dependent on the volume injected into the caudal space. Since there was no difference between 1 ml/kg and 1.25 ml/kg, to achieve a dermatomal blockade up to thoracic level, we might have to increase the dose beyond 1.25 ml/kg, keeping the toxic dose in mind. PMID- 29033729 TI - Use of rocuronium and sugammadex under neuromuscular transmission monitoring in a patient with multiple sclerosis. AB - Multiple sclerosis (MS) is a potentially disabling disease characterized by demyelinating lesions in the central nervous system. One of the anesthetic challenges encountered in surgical patients with MS is the management of neuromuscular blockade (NMB) and its reversal. We report a case of a 31-year-old female patient suffering from MS, who underwent gynecological surgery under general anesthesia with sevoflurane, fentanyl, and rocuronium which was successfully reversed with sugammadex. Neuromuscular transmission (NMT) monitoring was used to guide the intraoperative doses of rocuronium and also the reversal of NMB by the use of sugammadex to ensure a safe tracheal extubation. In addition, delivered volatile was titrated according to anesthetic depth monitoring (Bispectral Index) while esophageal temperature was also monitored for the maintenance of normothermia. Postoperatively, a multimodal analgesic scheme offered a high-quality analgesia and sleep, minimization of anxiety, and increased patient satisfaction. At 1-month follow-up, the patient's course was uncomplicated without any MS exacerbation. We consider that the use of rocuronium and sugammadex under NMT monitoring may represent a useful and safe choice in patients with MS. PMID- 29033730 TI - Intentional intra-arterial injection of midazolam in a patient with status epilepticus in the Intensive Care Unit. AB - Fundamental medical care includes intravenous (IV) access which provides prompt resuscitation and reliable delivery of analgesics, antibiotics, and vasoactive medication. Difficult access populations, especially in critical area, continue to challenge providers to consider and utilize alternative means to provide IV access. Potential options under such circumstances include intramuscular, intraosseous, and intratracheal drug administration, but in extreme cases where no other options are available, intra-arterial route might be considered. We present a case where midazolam was intentionally injected intra-arterially to abort seizure activity in a patient with status epilepticus in the Intensive Care Unit. PMID- 29033728 TI - Anesthesia in pregnancy with heart disease. AB - Management of pregnant women with heart disease remains challenging due to the advancement of innovations in cardiac surgery and correction of complex cardiac anomalies, and more recently, with the successful performance of heart transplants, cardiac diseases are not only likely to coexist with pregnancy, but will also increase in frequency over the years to come. In developing countries with a higher prevalence of rheumatic fever, cardiac disease may complicate as many as 5.9% of pregnancies with a high incidence of maternal death. Since many of these deaths occur during or immediately following parturition, heart disease is of special importance to the anesthesiologist. This importance arises from the fact that drugs used for preventing or relieving pain during labor and delivery exert a major influence - for better or for worse - on the prognosis of the mother and newborn. Properly administered anesthesia and analgesia can contribute to the reduction of maternal and neonatal mortality and morbidity. PMID- 29033731 TI - Ultrasound-guided continuous spinal anesthesia for cesarean section in a parturient with scoliosis corrected with Harrington's rod surgery. AB - With rapid improvement in healthcare in Saudi Arabia, increasing number of women with surgically corrected kyphoscoliosis are likely to present for cesarean section (CS) or vaginal delivery requiring anesthesia or analgesia. Despite the surgical correction, these patients have poor cardiopulmonary reserves which increase the risks associated with general anesthesia. Whereas altered vertebral anatomy from previous surgery and the presence of metal work in spine make performing of regional anesthesia (RA) difficult and unpredictable, we report anesthetic management of such a patient who underwent CS using continuous spinal anesthesia technique. Challenges of placement of a spinal catheter in such a patient are discussed, and use of ultrasonography to circumnavigate these challenges is described. We propose that ultrasound can prove extremely valuable in performing of RA in patients with surgically corrected kyphoscoliosis. We could not find a similar case report from Saudi Arabia in the published literature. PMID- 29033732 TI - Double aortic arch presenting with respiratory distress: A case report and review of the literature. AB - Tracheal compression by vascular structures in infants is uncommon and may be masked by nonspecific respiratory symptoms. Double aortic arch (DAA) is the most common vascular ring. We describe a case of a 9-month-old male infant presented with respiratory distress and found to have a DAA. In this report, the authors emphasize the consideration of this pathology-induced respiratory distress and discuss its anesthetic management. PMID- 29033733 TI - Anesthesia management for a case of laryngeal keel placement. AB - Congenital laryngeal web is a rare anomaly with incidence of 1 in 10,000 births. Its clinical presentation may range from an asymptomatic patient or mild hoarseness of voice to severe respiratory stridor. The primary goals of surgical intervention for congenital laryngeal web are to establish a patent airway and to achieve a good voice quality. As recurrence rate after plain excision of laryngeal web is very high, its removal may be coupled by placement of a silastic keel in between vocal cords. Endolaryngeal placement of a keel is definitely less invasive than laryngofissure, but little is known about its anesthesia management. Frequent ventilatory adjustment and endotracheal tube (ETT) manipulations are needed along with vigilant monitoring. Risk of perforation or accidental dislodgment of the ETT and laryngeal edema are other concerns in management. We report a case. PMID- 29033734 TI - Microlaryngeal endotracheal tube for lung isolation in pediatric patient with significant tracheal narrowing. AB - A 15-year-old boy, weighing 45 kg, 160 cm height with large anterior mediastinal mass and significant tracheal narrowing was scheduled for thoracotomy and excision of the mass. He had a history of progressive dyspnea, inability to lie supine, and a right upper hemithorax mass 13 cm * 13 cm * 11 cm as evident on a computerized tomography with significant compression of the trachea and right main stem bronchus. Inhalational induction was carried out using sevoflurane with 100% oxygen. After achieving adequate depth of anesthesia with the maintenance of spontaneous respiration with oxygen and sevoflurane (minimum alveolar concentration 1.7), left principal bronchus was intubated under fiber-optic bronchoscopy, with 5 mm cuffed microlaryngeal surgery tube. Excellent lung isolation was achieved. Selection of endotracheal tube for lung isolation and endobronchial intubation in the presence of significant tracheal narrowing are discussed. PMID- 29033735 TI - Intramyometrial vasopressin: A fear for anesthetist? PMID- 29033737 TI - A very rare unusual site of ventilator breathing circuit leakage: Beware!! PMID- 29033736 TI - Avoiding failed spinal anesthesia: "Advik technique". PMID- 29033738 TI - Magill forceps: A savior in bronchoscopy. PMID- 29033739 TI - Intravenous burn following accidental warm saline infusion. PMID- 29033740 TI - Child with Edward's syndrome for radiological procedure: An anesthetic challenge. PMID- 29033741 TI - Ventricular laryngeal cyst: A threat to airway! PMID- 29033742 TI - Gum elastic bougie as a guide in nasotracheal intubation: A novel technique. PMID- 29033743 TI - Splanchnic nerve radiofrequency ablation for treating resistant abdominal pain. PMID- 29033744 TI - Pulsed radiofrequency of the supraorbital nerve for the treatment of supraorbital neuralgia. PMID- 29033745 TI - Using angle connector? Be careful: A hazard note. PMID- 29033746 TI - Concealed kinking of pediatric flexometallic tube at fixation point. PMID- 29033747 TI - Craniopagus twins for magnetic resonance imaging. PMID- 29033748 TI - Arm position-dependent kinking of intravenous cannula. PMID- 29033749 TI - "Two-hand-manoeuver" during nasotracheal intubation. PMID- 29033750 TI - Bilateral quadratus lumborum block for postoperative analgesia in a Von Hippel Lindau syndrome patient undergoing laparoscopic radical nephrectomy. PMID- 29033751 TI - "Curare crest" can detect breakthrough breathing. PMID- 29033752 TI - Anesthetic management of craniopagus conjoined twins in a remote location. PMID- 29033753 TI - Use the natural curve of the nasogastric tube: A simple technique of insertion. PMID- 29033754 TI - Retroclavicular approach of brachial plexus block: Here to stay!!! PMID- 29033755 TI - A rare case of submitral left ventricular aneurysms. PMID- 29033756 TI - Progression from an Inflammatory to a Fibrostenotic Phenotype in Eosinophilic Esophagitis. AB - Previous studies have suggested that eosinophilic esophagitis (EoE) progresses from chronic inflammation to fibrostenosis. However, natural history data illustrating this progression in individual patients are lacking. Here, we present 6 patients who progressed from an inflammatory to a fibrostenotic phenotype of EoE in the absence of treatment. At the time of diagnosis, none of the patients had significant evidence of fibrostenosis, but they did have other inflammatory findings of EoE such as edema, linear furrows, or exudates. After being lost to follow-up and treatment for an average of 7.8 +/- 2.0 years, strictures (n = 5; 83%) or a small-caliber esophagus (n = 4; 67%) were present in a majority of the patients, and the majority required esophageal dilation. These cases confirm that EoE can progress from an inflammation-only phenotype to a fibrostenotic phenotype in certain patients. PMID- 29033757 TI - Gallstone Ileus: An Unlikely Cause of Mechanical Small Bowel Obstruction. AB - Gallstone ileus is a rare disease that accounts for 1-4% of intestinal obstructions. Almost exclusively a condition in the older female population, it is a difficult diagnosis to make. We report the case of gallstone ileus in a 94 year-old Caucasian female, who presented to the emergency department with acute onset nausea, coffee-ground emesis, lack of bowel movement, and abdominal distension. On CT scan, the diagnosis of gallstone ileus was made by the presence of a cholecystoduodenal fistula, pneumobilia, and small bowel obstruction. Emergent laparotomy with a one-stage procedure of enterolithotomy and stone removal by milking the bowel distal to the stone were performed. The postoperative course was uneventful until postoperative day 4 when the patient was found tachycardic, lethargic, and unresponsive. We reviewed the literature on the diagnosis and treatment of gallstone ileus. PMID- 29033758 TI - Resection of Locally Advanced Pancreatic Neoplasms after Neoadjuvant Chemotherapy with Nab-Paclitaxel and Gemcitabine following FOLFIRINOX Failure. AB - The incidence of pancreatic cancer has dramatically increased over the past years, but the prognosis has not improved. Between 30 and 40% of tumors are considered locally advanced, essentially due to vascular involvement. In recent years, new chemotherapy protocols with high response rates have been developed. FOLFIRINOX seems to be an interesting option in this situation, but hematologic toxicity could be an obstacle to its prescription. Nab-paclitaxel and gemcitabine offer significant response rates with a reasonable safety profile. We report here a single-center experience of 2 cases with a locally advanced pancreatic cancer initially considered unresectable, progressive after first-line neoadjuvant FOLFIRINOX chemotherapy, and then treated with second-line nab paclitaxel/gemcitabine chemotherapy. PMID- 29033759 TI - Sump Syndrome: A Rare Long-Term Complication of Choledochoduodenostomy. AB - Biliary sump syndrome is a rare condition. It is seen as a rare long-term complication in patients with a history of a side-to-side choledochoduodenostomy. In the era before endoscopic retrograde cholangiopancreatography, side-to-side choledochoduodenostomy was a common surgical procedure for the management of biliary obstruction. In the setting of a side-to-side choledochoduodenostomy, the bile does not drain through the distal common bile duct anymore. Therefore, the part of the common bile duct distal from the choledochoduodenostomy anastomosis consequently transforms into a poorly drained reservoir, making this so-called "sump" prone to accumulation of debris. These patients are prone to cholangitis. We present a 64-year-old man with a history of side-to-side choledochoduodenostomy who presented with manifestations of cholangitis. An endoscopic retrograde cholangiopancreatography confirmed a diagnosis of sump syndrome. The etiology, clinical manifestations, and treatment of biliary sump syndrome are discussed in this article. PMID- 29033760 TI - Colonic Ganglioneuroma: A Rare Finding during Colorectal Cancer Screening. AB - Ganglioneuromas are very rare clinical entities, and their occurrence in the large bowel lays further emphasis on their rarity. Ganglioneuromas are benign tumors of undifferentiated neural crest cells. Their clinical presentation is mostly asymptomatic, and if any symptoms are present at all, they are usually nonspecific, with excellent prognosis. We report an asymptomatic, 65-year-old male with a solitary ascending colonic polyp found on screening colonoscopy. Histology revealed benign polypoid spindle-cell proliferation as well as S100 reactivity, consistent with ganglioneuroma. We report on the clinical presentation and discuss the origin, epidemiology, treatment, and management of this lesion. PMID- 29033762 TI - Typhoid Fever and Acute Appendicitis: A Rare Association Not Yet Fully Formed. AB - Infections caused by foodborne enteric pathogens including typhoidal and non typhoidal Salmonella species can mimic symptoms of acute appendicitis. The association between such bacterial pathogens and pathology-proven acute appendicitis has been described, but this link is poorly understood. Here we describe a case of a young man with typhoid fever presenting with histology proven acute appendicitis requiring urgent appendectomy, and provide a brief review of relevant literature to prompt more widespread recognition of this rare cause of a common surgical emergency. PMID- 29033761 TI - Drug-Induced Autoimmune Hepatitis following Treatment with Zoledronic Acid. AB - Adverse drug reactions are among the most frequent side effects of synthetic and complementary alternative drugs and represent the premier causes of license revocations and acute liver failure. Drug-induced liver injury can resemble literally any other genuine liver disease and usually responds well to drug dechallenge. However, in some cases autoimmune-like hepatitis can evolve, requiring short- and sometimes long-term immunosuppression. Here, we present the hitherto first case of autoimmune-like hepatitis following treatment with zoledronic acid. PMID- 29033763 TI - Multiple Small Intestine Ulcers with Desquamation of the Fingers. AB - A 73-year-old female was admitted to our hospital with abdominal pain and diarrhea. Computed tomography detected distension of the small intestine. A palmar erythema, multiple oral ulcers, and desquamation of the fingers appeared after hospitalization. Small-bowel endoscopic images showed multiple ulcers. We attributed this case to infection with Yersinia pseudotuberculosis based on the changes in Y. pseudotuberculosis antibody titers throughout the course of the illness. This report is valuable, as it illustrates the endoscopic characteristics of a Y. pseudotuberculosis infection with skin lesion and ileus, which may enable us to deepen the pathologic understanding of this disease. PMID- 29033764 TI - Non-Meckel Small Intestine Diverticulitis. AB - Non-Meckel small intestine diverticulitis can have many manifestations and its management is not well-defined. We report 4 unselect cases of small intestine diverticulitis; all patients were seen by the same physician at the Emergency Center at The University of Texas MD Anderson Cancer Center between 1999 and 2014. The median age at diagnosis of these patients was 82 years (range, 76-87 years). All 4 patients presented with acute onset of abdominal pain, and computed tomography scans showed characteristics of small intestine diverticulitis unrelated to cancer. Most of the diverticula were found in the region of the duodenum and jejuno-ileal segments of the small intestine. The patients, even those with peripancreatic inflammation and localized perforation, were treated conservatively. Non-Meckel diverticulitis can be overlooked in the initial diagnosis because of the location of the diverticulosis, the age of the patient, and the rarity of the disease. Because patients with non-Meckel small intestine diverticulitis can present with acute abdominal pain, non-Meckel small intestine diverticulitis should be considered in the differential diagnosis of patients with acute abdominal pain, and computed tomography scans can help identify the condition. Because of the rarity of non-Meckel small intestine diverticulitis, few studies have been published, and the data are inconclusive about how best to approach these patients. Our experience with these 4 elderly patients indicates that non-Meckel small intestine diverticulitis can be treated conservatively, which avoids the potential morbidity and mortality of a surgical approach. PMID- 29033765 TI - Celiac Disease Associated with a Benign Granulomatous Mass Demonstrating Self Regression after Initiation of a Gluten-Free Diet. AB - Celiac disease is a chronic immune-mediated enteropathy in which dietary gluten induces an inflammatory reaction predominantly in the duodenum. Celiac disease is known to be associated with benign small bowel thickening and reactive lymphadenopathy that often regresses after the institution of a gluten-free diet. A 66-year-old male patient with celiac disease presented with abdominal pain and diarrheal illness. Computerized tomography of the abdomen revealed a duodenal mass. Endoscopic ultrasound-guided fine needle aspiration of the mass revealed bizarre stromal cells which represent a nonspecific tissue reaction to inflammation. This inflammatory mass regressed after the institution of a gluten free diet. This case report describes a unique presentation of celiac disease in the form of a granulomatous self-regressing mass. Also, this is the first reported case of bizarre stromal cells found in association with celiac disease. In addition to lymphoma and small bowel adenocarcinoma, celiac disease can present with a benign inflammatory mass, which should be serially monitored for resolution with a gluten-free diet. PMID- 29033766 TI - Effect of Oral Care Gel for Burning Mouth Syndrome in a Patient with Hepatitis C: A Case Report. AB - Burning mouth syndrome (BMS) is a burning sensation in the mouth with no underlying dental or medical cause. To date, there is no satisfactory treatment for BMS. Herein, we present the case of a 42-year-old female presenting with hepatitis C virus infection along with BMS. Despite two interferon therapies and a sustained virologic response, the discomfort in her oral mucosa persisted. At the age of 51, the patient complained of burning sensation and tingling pain in the tongue; a thin layer of REFRECARE-H(r), an oral care gel (therapeutic dentifrice), was applied on the oral membrane after each meal for 60 days. Application of REFRECARE-H(r) decreased the various symptoms including tingling pain, oral discomfort, breath odor, sleep disorder, depressive mood, and jitteriness. The improvement in quality of life continued for 30 days after application of the gel. These findings indicate that REFRECARE-H(r) may be effective in reducing the symptoms associated with BMS. Long-term follow-up studies with larger number of patients are required to elucidate the therapeutic effects of this gel. PMID- 29033767 TI - Hemorrhagic Cholecystitis in a Patient on Maintenance Dialysis. AB - The present paper describes a case of hemorrhagic cholecystitis in a patient on maintenance dialysis. The patient presented with right upper quadrant abdominal pain. Computed tomography revealed swelling of the gallbladder, high- and isodensity contents of the gallbladder, and high-density stone in the gallbladder neck. He was hospitalized for suspected acute cholecystitis. After hospitalization, his levels of total bilirubin, aspartate aminotransferase, and alanine aminotransferase increased. T2-weighted magnetic resonance imaging showed low-intensity contents expanded to include a wide area from the common bile duct to the cystic duct and gallbladder neck. Endoscopic retrograde cholangiopancreatography revealed clotting from the duodenal papilla. After cannulation of the bile duct, old blood and pus began to flow from the mammary papilla, and an endoscopic nasobiliary drainage tube was placed. After his liver function had improved, the patient underwent laparoscopic cholecystectomy. His sample revealed that the gallbladder was filled with blood clots and stones. His postoperative course was uneventful and he was discharged on day 19 after the procedure. Although hemorrhagic cholecystitis is rare, it should be considered as a differential diagnosis for patients on dialysis who have acute abdominal symptoms. PMID- 29033768 TI - Preoperative Diagnosis of Intestinal Endometriosis by Magnifying Colonoscopy and Target Biopsy. AB - Endometriosis can affect any portion of the gastrointestinal tract. A preoperative definitive diagnosis of intestinal endometriosis is difficult, because there is no characteristic endoscopic finding and the endoscopic biopsies usually sample insufficient endometrial tissue for pathologic diagnosis. To our knowledge, the magnifying endoscopic features of intestinal mucosal endometriosis have not been well documented. In this study, we report a case of intestinal endometriosis diagnosed preoperatively by magnifying image-enhanced colonoscopy and target biopsy. A 45-year-old woman was referred to our hospital with abdominal pain in the left lower quadrant. Colonoscopy showed a submucosal tumor like lesion of approximately 30 mm in diameter exhibiting surface reddening and granular changes in the sigmoid colon. Magnifying endoscopy revealed sparsely distributed round pits in the granules. The mucosal biopsy specimen from the granule provided the diagnosis of intestinal endometriosis. Segmental sigmoidectomy was performed, and pathological examination revealed that the surface colonic mucosa was partially replaced by endometrial tissue, which accounted for the granular change detected in the colonoscopy. It can be speculated that the round pit might reflect the endometrial glands surrounded by endometrial stroma. This case illustrated the characteristic finding and utility of magnifying endoscopy for mucosal intestinal endometriosis. PMID- 29033769 TI - Ascending Cholangitis due to Heavy Lifting. AB - Gallstone disease is the most common risk factor for cholangitis. In an anatomically normal bile duct system, cholangitis does not occur without the presence of stones. Endoscopic retrograde cholangiography with papillotomy and stone extraction is a well-established curative therapy for gallstones in the common bile duct. More important, papillotomy prevents recurrent episodes. The present case report describes a 73-year-old male with recurring cholangitis in a clear bile duct system after previous papillotomy. An etiology of duodenal reflux into the common bile duct due to heavy lifting is proposed. PMID- 29033770 TI - Acinar Cell Cystadenocarcinoma of the Pancreas. AB - Acinar cell cystadenocarcinoma is a rare malignant epithelial neoplasm of the pancreas with a diffusely cystic, gross architecture in which the cysts are lined with neoplastic epithelial cells that demonstrate evidence of pancreatic exocrine enzyme production. This is the 10th case that has been reported in the literature. A 77-year-old male complaining of left hypochondrial pain was referred to our hospital for treatment of a pancreatic tumor. A huge, honeycomb structured tumor was detected in the pancreatic tail. Distal pancreatectomy with total resection of the residual stomach and partial resection of the transverse colon were performed. Microscopically, there were variably sized cystic lesions in the tumor. Immunohistochemical examinations revealed that tumor cells were positive for alpha 1-antichymotrypsin and alpha 1-trypsin, showing that tumor cells had features of pancreatic acinar cells. Thus, the tumor was diagnosed as acinar cell cystadenocarcinoma. Herein, we report a rare case with acinar cell cystadenocarcinoma, which is the 10th case reported in the literature based on a PubMed search. We managed to resect the tumor completely by distal pancreatectomy with total resection of the residual stomach and partial resection of the transverse colon. The patient is still alive 26 months after surgery without any recurrence after 1 year of adjuvant chemotherapy with S-1. PMID- 29033771 TI - Malignant Gastric Outlet Obstruction from Pancreatic Cancer. AB - Patients with advanced-stage pancreatic cancer are typically burdened by many symptoms that impair functioning and worsen quality of life. We report an exceptional case of a 73-year-old woman with T4N1M0 adenocarcinoma of the uncinate process of the pancreas who developed significant gastric outlet obstruction - an uncommon yet potentially life-threatening complication of disease progression. She developed progressive abdominal pain and emesis, and profound dilatation of her stomach was detected on a radiation therapy simulation CT scan that required urgent decompression. Malignant gastric outlet obstruction must be included in the differential diagnosis when patients with known advanced disease of the pancreas present with obstructive upper gastrointestinal symptoms. PMID- 29033772 TI - Intraparenchymal Hemorrhage due to Brain Metastasis of Hepatocellular Carcinoma. AB - Although extrahepatic metastases from hepatocellular carcinoma (HCC) are present in only 5-15% of cases, they are certainly factors associated with poor prognosis. The main sites include lung, lymph nodes, bones, and adrenal glands, in descending order. Metastasis in the central nervous system is extremely rare, and the incidences vary from 0.6 to 1.7%. We report a case of a 54-year-old man previously diagnosed with alcohol-induced cirrhosis of the liver and HCC. The patient was admitted presenting progressive left hemiparesis and headache which started 2 days earlier, with no history of cranioencephalic trauma. After admission, cranial computed tomography revealed an intraparenchymal hemorrhage area with surrounding edema in the right frontal lobe. An angioresonance requested showed a large extra-axial mass lesion located in the right frontal region with well-defined contours and predominantly hypointense signal on T2 sequence. At first, the radiological findings suggested meningioma as the first diagnostic hypothesis. However, the patient underwent surgery. The tumor was completely removed, and the morphological and immunohistochemical findings were consistent with metastatic hepatocarcinoma associated with meningioma. In postoperative care, the patient did not recover from the left hemiparesis and manifested Broca's aphasia. He had a survival time of 24 weeks, presenting acute liver failure as his cause of death. There is a lack of evidence supporting a specific management of patients with brain metastasis from HCC. Furthermore, there are no studies that evaluate different modalities of therapeutics in brain metastasis of HCC due to the rarity of this condition. Therefore, management must be individualized depending on probable prognostic factors in these patients. PMID- 29033773 TI - Laparoscopic Resection of a Jejunal Mesenteric Pseudocyst. AB - An unusual case of a jejunal mesenteric pseudocyst treated by laparoscopic resection is reported. A 44-year-old woman was admitted to our hospital with intermittent upper abdominal pain and diarrhea. Physical examination revealed slight periumbilical tenderness, and no masses were palpable. Contrast-enhanced computed tomography showed a 4-cm-sized nonenhancing high-density mass with a heterogeneous pattern on a proximal small bowel loop. Based on these findings, a gastrointestinal stromal tumor accompanied by hemorrhagic and cystic change, a mesenteric hematoma, or a desmoid tumor was diagnosed. Laparoscopy was performed to obtain an accurate diagnosis. Exploration of the abdominal cavity identified a 4-cm mass originating from the mesentery of the jejunum. Segmental resection of the jejunum and its mesentery, including the mass, was performed. Macroscopically, the mass appeared to be a cystic mass of the jejunal mesentery. The mass within the cyst lumen consisted of white clayish material with no specific pathology. The final pathological diagnosis was a mesenteric pseudocyst. The patient had an uneventful postoperative course. PMID- 29033774 TI - Hemothorax following Uncomplicated Endoscopic Variceal Sclerotherapy and Ligation for Esophageal Varices. AB - Endoscopic variceal sclerotherapy and ligation are standard treatment modalities used for the management of esophageal varices. Reportedly, sclerotherapy and ligation are associated with complications such as hematuria, pulmonary thrombus formation, pleural effusion, renal dysfunction, and esophageal stenosis. However, hemothorax following sclerotherapy and ligation has not yet been reported. We treated a patient who presented with liver cirrhosis and polycythemia vera and later developed hemothorax following the above-mentioned procedures. An 86-year old man diagnosed with liver cirrhosis due to chronic hepatitis type B and alcohol abuse underwent variceal sclerotherapy using ethanolamine oleate to treat his esophageal varices. Oozing from the esophageal varices continued even after the sclerotherapy procedure; therefore, we performed endoscopic variceal ligation. The patient developed left-sided hemothorax within 24 h after treatment of his varices, and an emergency thoracotomy was performed. A pulmonary ligament of the left lung was bulging and ripping because of mediastinal hematoma, and oozing was noted. Cessation of bleeding was noted after the laceration of the left pulmonary ligament had been sutured. Ours is the first case of hemothorax reported in a patient following an uncomplicated procedure of sclerotherapy and ligation. PMID- 29033776 TI - Carbohydrate Antigen 19-9-Positive Gastric Adenocarcinoma: Autopsy Findings and Review of the Literature. AB - Carbohydrate antigen 19-9 (CA19-9) is a well-known tumor marker for pancreatobiliary cancer, and several studies have shown that an elevated serum CA19-9 level is associated with more aggressive biological behavior in gastric cancer (GC). However, the clinicopathological characteristics of CA19-9-positive GC remain unclear. We herein report an autopsy case of CA19-9-positive GC in an 84-year-old man who was admitted to our hospital because of paralysis and anemia. Autopsy revealed an ulcerative-invasive tumor measuring 72 * 60 mm in the anterior wall of the gastric body. The tumor had invaded beyond the muscularis propria, and metastasized to the lung, liver, and regional lymph nodes. Histologically, the tumor cell had oval nuclei with abundant clear cytoplasm, and tubular and/or papillary features with prominent lymphovascular permeation and perineural invasion, mimicking pancreatobiliary carcinoma. Immunohistochemically, the tumor cells showed diffuse immunopositivity for CA19-9 and carcinoembryonic antigen. According to a review of cases reported in the literature, CA19-9 positive GCs show clinicopathological characteristics such as antral location, ulcerative-infiltrating gross feature, differentiated histology, prominent lymphatic and venous invasion, higher proportion of metastasis, and higher clinical stage. These results suggest that CA19-9-positive GC is pathologically a distinctive type of tumor with aggressive biological behavior. PMID- 29033775 TI - Preoperative Diagnosis and Surgical Approach of Appendiceal Mucinous Cystadenoma: Usefulness of Volcano Sign. AB - We report a case of appendiceal mucinous cystadenoma that was successfully diagnosed preoperatively and treated by laparoscopic resection. We could find volcano sign on colonoscopy and cystic lesion without any nodules at the appendix on computed tomography (CT). Without any malignant factors in preoperative examinations, we performed laparoscopic appendectomy including the cecal wall. We could avoid performing excessive operation for cystadenoma with accurate preoperative diagnosis and intraoperative finding and pathological diagnosis during surgery. Appendiceal mucocele is a rare disease that is divided into 3 pathological types: hyperplasia, cystadenoma, and cystadenocarcinoma. The surgical approaches for it remain controversial and oversurgery is sometimes done for benign tumor, because preoperative diagnosis is difficult and rupturing an appendiceal tumor results in dissemination. Based on our study, volcano sign on colonoscopy and CT findings were important for the preoperative diagnosis of appendiceal mucocele. Furthermore, we think that laparoscopic resection will become a surgical option for the treatment of appendiceal mucocele. PMID- 29033777 TI - Unusual Clinical Presentation of Hemobilia with Recurrent Vasovagal Episodes. AB - Hemobilia is caused by the abnormal connection between a blood vessel and the bile duct, which is usually iatrogenic and caused by hepatobiliary procedures. The classic triad of hemobilia includes biliary colic, obstructive jaundice, and gastrointestinal bleeding. We present the case of an 80-year-old man who had laparoscopic cholecystectomy complicated by hemobilia. He had an unusual presentation of hemobilia in the form of transient vasovagal episodes in addition to abdominal pain and hematochezia. PMID- 29033779 TI - A Patient with Nafcillin-Associated Drug-Induced Liver Failure. AB - Nafcillin-induced acute liver injury is a rare and potentially fatal complication that has been known since the 1960s but inadequately studied. At this time, the only proven treatment is early discontinuation of the drug. Because of the high prevalence of nafcillin class antibiotic use in the United States, it is important for clinicians to have a high clinical suspicion for this diagnosis. We present a case of liver failure attributable to nafcillin use in a 68-year-old male with a history methicillin-sensitive Staphylococcus and L3/L4 osteomyelitis. After starting long-term antibiotic therapy, he presented with painless jaundice which necessitated discontinuation of the drug. At the time of presentation, the patient's lab work exhibited a bilirubin/direct bilirubin of 9.4/8.2 mg/dL, alkaline phosphatase of 311 IU/L, and aspartate transaminase/alanine transaminase of 109/127 IU/L. The patient was switched to i.v. vancomycin given the concern for drug-induced liver injury. Imaging did not show obstruction of the hepatobiliary or pancreaticobiliary trees. Serology was unremarkable for viral etiology, autoimmune processes, Wilson disease, and hemochromatosis. A liver biopsy showed findings consistent with drug-induced liver injury. The patient's liver function tests peaked at day 7 of admission and trended towards normal levels with cessation of nafcillin therapy. The patient was discharged with a diagnosis of nafcillin-induced acute liver injury. Our case highlights the importance of early recognition of the diagnosis and careful monitoring of liver function when nafcillin is employed in the clinical setting. PMID- 29033778 TI - A Case of Basaloid Squamous Cell Carcinoma of Polypoid Type in the Esophagus. AB - Basaloid squamous cell carcinoma of the esophagus is very rare. Further, polypoid type of esophageal cancer is also rare. We have recently treated a case of basaloid squamous cell carcinoma which presented as a 1.3-cm esophageal polyp. A 48-year-old woman was referred to our hospital because of a polypoid mass at 36 cm distance from the upper incisor on endoscopic examination, and the result of the biopsy was basaloid squamous cell carcinoma. The patient underwent Ivor Lewis operation with lymph node dissection. Two basaloid squamous cell carcinomas, of 1.3 and 0.4 cm, were diagnosed in the final pathologic examination. Regular periodic follow-up showed no evidence of recurrence or metastasis in the 5-month postoperative period. PMID- 29033780 TI - Evolutionary Musicology Meets Embodied Cognition: Biocultural Coevolution and the Enactive Origins of Human Musicality. AB - Despite evolutionary musicology's interdisciplinary nature, and the diverse methods it employs, the field has nevertheless tended to divide into two main positions. Some argue that music should be understood as a naturally selected adaptation, while others claim that music is a product of culture with little or no relevance for the survival of the species. We review these arguments, suggesting that while interesting and well-reasoned positions have been offered on both sides of the debate, the nature-or-culture (or adaptation vs. non adaptation) assumptions that have traditionally driven the discussion have resulted in a problematic either/or dichotomy. We then consider an alternative "biocultural" proposal that appears to offer a way forward. As we discuss, this approach draws on a range of research in theoretical biology, archeology, neuroscience, embodied and ecological cognition, and dynamical systems theory (DST), positing a more integrated model that sees biological and cultural dimensions as aspects of the same evolving system. Following this, we outline the enactive approach to cognition, discussing the ways it aligns with the biocultural perspective. Put simply, the enactive approach posits a deep continuity between mind and life, where cognitive processes are explored in terms of how self-organizing living systems enact relationships with the environment that are relevant to their survival and well-being. It highlights the embodied and ecologically situated nature of living agents, as well as the active role they play in their own developmental processes. Importantly, the enactive approach sees cognitive and evolutionary processes as driven by a range of interacting factors, including the socio-cultural forms of activity that characterize the lives of more complex creatures such as ourselves. We offer some suggestions for how this approach might enhance and extend the biocultural model. To conclude we briefly consider the implications of this approach for practical areas such as music education. PMID- 29033781 TI - Direct Neuronal Reprogramming for Disease Modeling Studies Using Patient-Derived Neurons: What Have We Learned? AB - Direct neuronal reprogramming, by which a neuron is formed via direct conversion from a somatic cell without going through a pluripotent intermediate stage, allows for the possibility of generating patient-derived neurons. A unique feature of these so-called induced neurons (iNs) is the potential to maintain aging and epigenetic signatures of the donor, which is critical given that many diseases of the CNS are age related. Here, we review the published literature on the work that has been undertaken using iNs to model human brain disorders. Furthermore, as disease-modeling studies using this direct neuronal reprogramming approach are becoming more widely adopted, it is important to assess the criteria that are used to characterize the iNs, especially in relation to the extent to which they are mature adult neurons. In particular: i) what constitutes an iN cell, ii) which stages of conversion offer the earliest/optimal time to assess features that are specific to neurons and/or a disorder and iii) whether generating subtype-specific iNs is critical to the disease-related features that iNs express. Finally, we discuss the range of potential biomedical applications that can be explored using patient-specific models of neurological disorders with iNs, and the challenges that will need to be overcome in order to realize these applications. PMID- 29033782 TI - Neural Correlates of Direct Access Trading in a Real Stock Market: An fMRI Investigation. AB - Background: While financial decision making has been barely explored, no study has previously investigated the neural correlates of individual decisions made by professional traders involved in real stock market negotiations, using their own financial resources. Aim: We sought to detect how different brain areas are modulated by factors like age, expertise, psychological profile (speculative risk seeking or aversion) and, eventually, size and type (Buy/Sell) of stock negotiations, made through Direct Access Trading (DAT) platforms. Subjects and methods: Twenty male traders underwent fMRI while negotiating in the Italian stock market using their own preferred trading platform. Results: At least 20 decision events were collected during each fMRI session. Risk averse traders performed a lower number of financial transactions with respect to risk seekers, with a lower average economic value, but with a higher rate of filled proposals. Activations were observed in cortical and subcortical areas traditionally involved in decision processes, including the ventrolateral and dorsolateral prefrontal cortex (vlPFC, dlPFC), the posterior parietal cortex (PPC), the nucleus accumbens (NAcc), and dorsal striatum. Regression analysis indicated an important role of age in modulating activation of left NAcc, while traders' expertise was negatively related to activation of vlPFC. High value transactions were associated with a stronger activation of the right PPC when subjects' buy rather than sell. The success of the trading activity, based on a large number of filled transactions, was related with higher activation of vlPFC and dlPFC. Independent of chronological and professional age, traders differed in their attitude to DAT, with distinct brain activity profiles being detectable during fMRI sessions. Those subjects who described themselves as very self-confident, showed a lower or absent activation of both the caudate nucleus and the dlPFC, while more reflexive traders showed greater activation of areas involved in strategic decision making. Discussion: The neural correlates in DAT are similar to those observed in other decision making contexts. Trading is handled as a well learned automatic behavior by expert traders; for those who mostly rely on heuristics, cognitive effort decreases, and transaction speed increases, but decision efficiency lowers following a poor involvement of the dlPFC. PMID- 29033783 TI - The Mechanisms of Psychedelic Visionary Experiences: Hypotheses from Evolutionary Psychology. AB - Neuropharmacological effects of psychedelics have profound cognitive, emotional, and social effects that inspired the development of cultures and religions worldwide. Findings that psychedelics objectively and reliably produce mystical experiences press the question of the neuropharmacological mechanisms by which these highly significant experiences are produced by exogenous neurotransmitter analogs. Humans have a long evolutionary relationship with psychedelics, a consequence of psychedelics' selective effects for human cognitive abilities, exemplified in the information rich visionary experiences. Objective evidence that psychedelics produce classic mystical experiences, coupled with the finding that hallucinatory experiences can be induced by many non-drug mechanisms, illustrates the need for a common model of visionary effects. Several models implicate disturbances of normal regulatory processes in the brain as the underlying mechanisms responsible for the similarities of visionary experiences produced by psychedelic and other methods for altering consciousness. Similarities in psychedelic-induced visionary experiences and those produced by practices such as meditation and hypnosis and pathological conditions such as epilepsy indicate the need for a general model explaining visionary experiences. Common mechanisms underlying diverse alterations of consciousness involve the disruption of normal functions of the prefrontal cortex and default mode network (DMN). This interruption of ordinary control mechanisms allows for the release of thalamic and other lower brain discharges that stimulate a visual information representation system and release the effects of innate cognitive functions and operators. Converging forms of evidence support the hypothesis that the source of psychedelic experiences involves the emergence of these innate cognitive processes of lower brain systems, with visionary experiences resulting from the activation of innate processes based in the mirror neuron system (MNS). PMID- 29033785 TI - Versatile Roles of the Chromatin Remodeler CHD7 during Brain Development and Disease. AB - CHD7 (Chromo-Helicase-DNA binding protein 7) protein is an ATP-dependent chromatin remodeler. Heterozygous mutation of the CHD7 gene causes a severe congenital disease known as CHARGE syndrome. Most CHARGE syndrome patients have brain structural anomalies, implicating an important role of CHD7 during brain development. In this review, we summarize studies dissecting developmental functions of CHD7 in the brain and discuss pathogenic mechanisms behind neurodevelopmental defects caused by mutation of CHD7. As we discussed, CHD7 protein exhibits a remarkably specific and dynamic expression pattern in the brain. Studies in human and animal models have revealed that CHD7 is involved in multiple developmental lineages and processes in the brain. Mechanistically, CHD7 is essential for neural differentiation due to its transcriptional regulation in progenitor cells. PMID- 29033787 TI - A Novel Ex Vivo Model to Investigate the Underlying Mechanisms in Alzheimer's Disease. AB - Currently there is no widely accepted animal model reproducing the full pathological profile of Alzheimer's disease (AD), since the basic mechanisms of neurodegeneration are still poorly understood. We have proposed that the interaction between the alpha7 nicotinic acetylcholine receptor (alpha7-nAChR) and a recently discovered toxic peptide, cleaved from the acetylcholinesterase (AChE) C-terminus, could account for the aberrant processes occurring in AD. In this article we describe a new application on ex vivo model procedure, which combines the advantages of both in vivo and in vitro preparations, to study the effects of the AChE-derived peptide on the rat basal forebrain (BF). Western blot analysis showed that the levels of alpha7-nAChR, p-Tau and Abeta are differentially expressed upon the AChE-peptide administration, in a selective site-dependent manner. In conclusion, this methodology demonstrates the action of a novel peptide in triggering an AD-like phenotype and proposes a new ex vivo approach for manipulating and monitoring neurochemical processes contributing to neurodegeneration, in a time-dependent and site-specific manner. PMID- 29033786 TI - Wnt5a Promotes Cortical Neuron Survival by Inhibiting Cell-Cycle Activation. AB - beta-Amyloid protein (Abeta) is thought to cause neuronal loss in Alzheimer's disease (AD). Abeta treatment promotes the re-activation of a mitotic cycle and induces rapid apoptotic death of neurons. However, the signaling pathways mediating cell-cycle activation during neuron apoptosis have not been determined. We find that Wnt5a acts as a mediator of cortical neuron survival, and Abeta42 promotes cortical neuron apoptosis by downregulating the expression of Wnt5a. Cell-cycle activation is mediated by the reduced inhibitory effect of Wnt5a in Abeta42 treated cortical neurons. Furthermore, Wnt5a signals through the non canonical Wnt/Ca2+ pathway to suppress cyclin D1 expression and negatively regulate neuronal cell-cycle activation in a cell-autonomous manner. Together, aberrant downregulation of Wnt5a signaling is a crucial step during Abeta42 induced cortical neuron apoptosis and might contribute to AD-related neurodegeneration. PMID- 29033784 TI - Top-Down Control of Visual Attention by the Prefrontal Cortex. Functional Specialization and Long-Range Interactions. AB - The ability to select information that is relevant to current behavioral goals is the hallmark of voluntary attention and an essential part of our cognition. Attention tasks are a prime example to study at the neuronal level, how task related information can be selectively processed in the brain while irrelevant information is filtered out. Whereas, numerous studies have focused on elucidating the mechanisms of visual attention at the single neuron and population level in the visual cortices, considerably less work has been devoted to deciphering the distinct contribution of higher-order brain areas, which are known to be critical for the employment of attention. Among these areas, the prefrontal cortex (PFC) has long been considered a source of top-down signals that bias selection in early visual areas in favor of the attended features. Here, we review recent experimental data that support the role of PFC in attention. We examine the existing evidence for functional specialization within PFC and we discuss how long-range interactions between PFC subregions and posterior visual areas may be implemented in the brain and contribute to the attentional modulation of different measures of neural activity in visual cortices. PMID- 29033789 TI - Stress and Corticosteroids Modulate Muscarinic Long Term Potentiation (mLTP) in the Hippocampus. AB - Stress influences synaptic plasticity, learning and memory in a steroid hormone receptor dependent manner. Based on these findings it has been proposed that stress could be a major risk factor for the development of cognitive decline and dementia. Interestingly, evidence has been provided that stress also affects muscarinic, i.e., acetylcholine (ACh)-mediated neurotransmission. To learn more about the impact of stress and steroids on synaptic plasticity, in this study, we investigated the effects of stress on muscarinic long term potentiation (mLTP). We report that multiple, unpredictable exposure to stress depresses carbachol (0.5 MUM)-induced mLTP, while this effect of stress is not observed in hippocampal slices prepared from mice exposed only to a single stressful procedure. Furthermore, we demonstrate that activation of distinct steroid hormone receptors is involved in stress-mediated alterations of mLTP. Activation of mineralocorticoid receptors (MR) promotes mLTP, while glucocorticoid receptor (GR) activity impairs mLTP. These effects of multiple unpredictable stress on mLTP are long-lasting since they are detected even two weeks after the last stressful experience. Thus, multiple unpredictable events rather than a single stressful experience affect mLTP in a steroid hormone receptor dependent manner, suggesting that chronic unpredictable stress can lead to lasting alterations in hippocampal cholinergic plasticity. PMID- 29033790 TI - Non-aggregated Abeta25-35 Upregulates Primary Astrocyte Proliferation In Vitro. AB - Amyloid beta (Abeta) is a peptide cleaved from amyloid precursor protein that contributes to the formation of senile plaques in Alzheimer's disease (AD). The relationship between Abeta and astrocyte proliferation in AD remains controversial. Despite pathological findings of increased astrocytic mitosis in AD brains, in vitro studies show an inhibitory effect of Abeta on astrocyte proliferation. In this study, we determined the effect of an active fragment of Abeta (Abeta25-35) on the cell cycle progression of primary rat astrocytes. We found that Abeta25-35 (0.3-1.0 MUg/ml) enhanced astrocyte proliferation in vitro in a time- and concentration-dependent manner. Increased DNA synthesis by Abeta25 35 was observed during the S phase of the astrocyte cell cycle, as indicated by proliferation kinetics and bromodeoxyuridine immunocytochemical staining. Aggregation of Abeta25-35 abolished the upregulatory effect of Abeta on astrocyte proliferation. Further examination indicated that Abeta25-35 affected astrocyte proliferation during early or mid-G1 phase but had no effect on DNA synthesis at the peak of S phase. These results provide insight into the relationship between Abeta25-35 and astrocyte cell cycling in AD. PMID- 29033792 TI - Spontaneous and Evoked Activity from Murine Ventral Horn Cultures on Microelectrode Arrays. AB - Motor neurons are the site of action for several neurological disorders and paralytic toxins, with cell bodies located in the ventral horn (VH) of the spinal cord along with interneurons and support cells. Microelectrode arrays (MEAs) have emerged as a high content assay platform for mechanistic studies and drug discovery. Here, we explored the spontaneous and evoked electrical activity of VH cultures derived from embryonic mouse spinal cord on multi-well plates of MEAs. Primary VH cultures from embryonic day 15-16 mice were characterized by expression of choline acetyltransferase (ChAT) by immunocytochemistry. Well resolved, all-or-nothing spontaneous spikes with profiles consistent with extracellular action potentials were observed after 3 days in vitro, persisting with consistent firing rates until at least day in vitro 19. The majority of the spontaneous activity consisted of tonic firing interspersed with coordinated bursting across the network. After 5 days in vitro, spike activity was readily evoked by voltage pulses where a minimum amplitude and duration required for excitation was 300 mV and 100 MUs/phase, respectively. We characterized the sensitivity of spontaneous and evoked activity to a host of pharmacological agents including AP5, CNQX, strychnine, omega-agatoxin IVA, and botulinum neurotoxin serotype A (BoNT/A). These experiments revealed sensitivity of the cultured VH to both agonist and antagonist compounds in a manner consistent with mature tissue derived from slices. In the case of BoNT/A, we also demonstrated intoxication persistence over an 18-day period, followed by partial intoxication recovery induced by N- and P/Q-type calcium channel agonist GV-58. In total, our findings suggest that VH cultures on multi-well MEA plates may represent a moderate throughput, high content assay for performing mechanistic studies and for screening potential therapeutics pertaining to paralytic toxins and neurological disorders. PMID- 29033791 TI - Protein Synthesis Inhibition and Activation of the c-Jun N-Terminal Kinase Are Potential Contributors to Cisplatin Ototoxicity. AB - Cisplatin has been regarded as an effective and versatile chemotherapeutic agent for nearly 40 years. Though the associated dose-dependent ototoxicity is known, the cellular mechanisms by which cochleovestibular hair cell death occur are not well understood. We have previously shown that aminoglycoside ototoxicity is mediated in part by cytosolic protein synthesis inhibition. Despite a lack of molecular similarity, aminoglycosides were shown to elicit similar stress pathways to cisplatin. We therefore reasoned that there may be some role of protein synthesis inhibition in cisplatin ototoxicity. Employing a modification of the bioorthogonal noncanonical amino acid tagging (BONCAT) method, we evaluated the effects of cisplatin on cellular protein synthesis. We show that cisplatin inhibits cellular protein synthesis in organ of Corti explant cultures. Similar to what was found after gentamicin exposure, cisplatin activates both the c-Jun N-terminal kinase (JNK) and mammalian target of rapamycin (mTOR) pathways. In contrast to aminoglycosides, cisplatin also inhibits protein synthesis in all cochlear cell types. We further demonstrate that the multikinase inhibitor sorafenib completely prevents JNK activation, while providing only moderate hair cell protection. Simultaneous stimulation of cellular protein synthesis by insulin, however, significantly improved hair cell survival in culture. The presented data provides evidence for a potential role of protein synthesis inhibition in cisplatin-mediated ototoxicity. PMID- 29033788 TI - Zinc as a Neuromodulator in the Central Nervous System with a Focus on the Olfactory Bulb. AB - The olfactory bulb (OB) is central to the sense of smell, as it is the site of the first synaptic relay involved in the processing of odor information. Odor sensations are first transduced by olfactory sensory neurons (OSNs) before being transmitted, by way of the OB, to higher olfactory centers that mediate olfactory discrimination and perception. Zinc is a common trace element, and it is highly concentrated in the synaptic vesicles of subsets of glutamatergic neurons in some brain regions including the hippocampus and OB. In addition, zinc is contained in the synaptic vesicles of some glycinergic and GABAergic neurons. Thus, zinc released from synaptic vesicles is available to modulate synaptic transmission mediated by excitatory (e.g., N-methyl-D aspartate (NMDA), alpha-amino-3-hydroxy 5-methyl-4-isoxazolepropionic acid (AMPA)) and inhibitory (e.g., gamma aminobutyric acid (GABA), glycine) amino acid receptors. Furthermore, extracellular zinc can alter the excitability of neurons through effects on a variety of voltage-gated ion channels. Consistent with the notion that zinc acts as a regulator of neuronal activity, we and others have shown zinc modulation (inhibition and/or potentiation) of amino acid receptors and voltage-gated ion channels expressed by OB neurons. This review summarizes the locations and release of vesicular zinc in the central nervous system (CNS), including in the OB. It also summarizes the effects of zinc on various amino acid receptors and ion channels involved in regulating synaptic transmission and neuronal excitability, with a special emphasis on the actions of zinc as a neuromodulator in the OB. An understanding of how neuroactive substances such as zinc modulate receptors and ion channels expressed by OB neurons will increase our understanding of the roles that synaptic circuits in the OB play in odor information processing and transmission. PMID- 29033793 TI - From Serotonin to Neuroplasticity: Evolvement of Theories for Major Depressive Disorder. AB - The serotonin (5-HT) hypothesis of depression has played an important role in the history of psychiatry, yet it has also been criticized for the delayed onset and inadequate efficacy of selective serotonin reuptake inhibitors (SSRIs). With evolvement of neuroscience, the neuroplasticity hypothesis of major depressive disorder (MDD) has been proposed and may provide a better framework for clarification the pathogenesis of MDD and antidepressant efficacy. In this article, we first summarized the evidence challenging the monoamine hypothesis and proposed that the antidepressant efficacy of SSRIs is not derived from elevated monoamine (5-HT, noradrenaline (NE), or dopamine (DA)) concentration or monoamine neurotransmission. Second, we reviewed the role of stress in the pathogenesis of MDD and gave a brief introduction to the neuroplasticity hypothesis of MDD. Third, we explored the possible mechanisms underlying the antidepressant efficacy of typical antidepressants in the context of neuroplasticity theory. Fourth, we tried to provide an explanatory framework for the significant difference in onset of efficacy between typical antidepressants and ketamine. Finally, we provided a brief summarization about this review article and some perspectives for future studies. PMID- 29033794 TI - Dihydroartemisinin Exerts Anti-Tumor Activity by Inducing Mitochondrion and Endoplasmic Reticulum Apoptosis and Autophagic Cell Death in Human Glioblastoma Cells. AB - Glioblastoma (GBM) is the most advanced and aggressive form of gliomas. Dihydroartemisinin (DHA) has been shown to exhibit anti-tumor activity in various cancer cells. However, the effect and molecular mechanisms underlying its anti tumor activity in human GBM cells remain to be elucidated. Our results proved that DHA treatment significantly reduced cell viability in a dose- and time dependent manner by CCK-8 assay. Further investigation identified that the cell viability was rescued by pretreatment either with Z-VAD-FMK, 3-methyladenine (3 MA) or in combination. Moreover, DHA induced apoptosis of GBM cells through mitochondrial membrane depolarization, release of cytochrome c and activation of caspases-9. Enhanced expression of GRP78, CHOP and eIF2alpha and activation of caspase 12 were additionally confirmed that endoplasmic reticulum (ER) stress pathway of apoptosis was involved in the cytotoxicity of DHA. DHA-treated GBM cells exhibited the morphological and biochemical changes typical of autophagy. Co-treatment with chloroquine (CQ) significantly induced the above effects. Furthermore, ER stress and mitochondrial dysfunction were involved in the DHA induced autophagy. Further study revealed that accumulation of reactive oxygen species (ROS) was attributed to the DHA induction of apoptosis and autophagy. The illustration of these molecular mechanisms will present a novel insight for the treatment of human GBM. PMID- 29033795 TI - Cellular Mechanisms of Cortisol-Induced Changes in Mauthner-Cell Excitability in the Startle Circuit of Goldfish. AB - Predator pressure and olfactory cues (alarm substance) have been shown to modulate Mauthner cell (M-cell) initiated startle escape responses (C-starts) in teleost fish. The regulation of such adaptive responses to potential threats is thought to involve the release of steroid hormones such as cortisol. However, the mechanism by which cortisol may regulate M-cell excitability is not known. Here, we used intrasomatic, in vivo recordings to elucidate the acute effects of cortisol on M-cell membrane properties and sound evoked post-synaptic potentials (PSPs). Cortisol tonically decreased threshold current in the M-cell within 10 min before trending towards baseline excitability over an hour later, which may indicate the involvement of non-genomic mechanisms. Consistently, current ramp injection experiments showed that cortisol increased M-cell input resistance in the depolarizing membrane, i.e., by a voltage-dependent postsynaptic mechanism. Cortisol also increases the magnitude of sound-evoked M-cell PSPs by reducing the efficacy of local feedforward inhibition (FFI). Interestingly, another pre synaptic inhibitory network mediating prepulse inhibition (PPI) remained unaffected. Together, our results suggest that cortisol rapidly increases M-cell excitability via a post-synaptic effector mechanism, likely a chloride conductance, which, in combination with its dampening effect on FFI, will modulate information processing to reach threshold. Given the central role of the M-cell in initiating startle, these results are consistent with a role of cortisol in mediating the expression of a vital behavior. PMID- 29033796 TI - Laminar and Cellular Distribution of Monoamine Receptors in Rat Medial Prefrontal Cortex. AB - The prefrontal cortex (PFC) is deeply involved in higher brain functions, many of which are altered in psychiatric conditions. The PFC exerts a top-down control of most cortical and subcortical areas through descending pathways and is densely innervated by axons emerging from the brainstem monoamine cell groups, namely, the dorsal and median raphe nuclei (DR and MnR, respectively), the ventral tegmental area and the locus coeruleus (LC). In turn, the activity of these cell groups is tightly controlled by afferent pathways arising from layer V PFC pyramidal neurons. The reciprocal connectivity between PFC and monoamine cell groups is of interest to study the pathophysiology and treatment of severe psychiatric disorders, such as major depression and schizophrenia, inasmuch as antidepressant and antipsychotic drugs target monoamine receptors/transporters expressed in these areas. Here we review previous reports examining the presence of monoamine receptors in pyramidal and GABAergic neurons of the PFC using double in situ hybridization. Additionally, we present new data on the quantitative layer distribution (layers I, II-III, V, and VI) of monoamine receptor-expressing cells in the cingulate (Cg), prelimbic (PrL) and infralimbic (IL) subfields of the medial PFC (mPFC). The receptors examined include serotonin 5-HT1A, 5-HT2A, 5 HT2C, and 5-HT3, dopamine D1 and D2 receptors, and alpha1A-, alpha1B-, and alpha1D-adrenoceptors. With the exception of 5-HT3 receptors, selectively expressed by layers I-III GABA interneurons, the rest of monoamine receptors are widely expressed by pyramidal and GABAergic neurons in intermediate and deep layers of mPFC (5-HT2C receptors are also expressed in layer I). This complex distribution suggests that monoamines may modulate the communications between PFC and cortical/subcortical areas through the activation of receptors expressed by neurons in intermediate (e.g., 5-HT1A, 5-HT2A, alpha1D-adrenoceptors, dopamine D1 receptors) and deep layers (e.g., 5-HT1A, 5-HT2A, alpha1A-adrenoceptors, dopamine D2 receptors), respectively. Overall, these data provide a detailed framework to better understand the role of monoamines in the processing of cognitive and emotional signals by the PFC. Likewise, they may be helpful to characterize brain circuits relevant for the therapeutic action of antidepressant and antipsychotic drugs and to improve their therapeutic action, overcoming the limitations of current drugs. PMID- 29033797 TI - White Matter Abnormalities in Children with HIV Infection and Exposure. AB - Background: Due to changes in guidelines and access to treatment, more children start combination antiretroviral therapy (ART) in infancy. With few studies examining the long-term effects of perinatal HIV infection and early ART on neurodevelopment, much is still unknown about brain maturation in the presence of HIV and ART. Follow-up studies of HIV infected (HIV+) children are important for monitoring brain development in the presence of HIV infection and ART. Methods: We use diffusion tensor imaging (DTI) to examine white matter (WM) in 65 HIV+ and 46 control (HIV exposed uninfected (HEU) and HIV unexposed uninfected (HU)) 7 year-old children. This is a follow up of a cohort studied at 5 years, where we previously reported lower fractional anisotropy (FA) in corticospinal tract (CST) and mean diffusivity (MD) increases in inferior/superior longitudinal fasciculi (ILF/SLF), inferior fronto-occipital fasciculus (IFOF) and uncinate fasciculus (UF) in HIV+ children compared to uninfected controls. In addition, we also found a difference in FA related to age at which ART was initiated. Results: At 7 years, we found two regions in the left IFOF and left ILF with lower FA in HIV+ children compared to controls. Higher MD was observed in a similar region in the IFOF, albeit bilaterally, as well as multiple clusters bilaterally in the superior corona radiata (SCR), the anterior thalamic radiation (ATR) and the right forceps minor. Unlike at 5 years, we found no impact on WM of ART initiation. In HEU children, we found a cluster in the right posterior corona radiata with higher FA compared to HU children, while bilateral regions in the CST demonstrated reduced MD. Conclusions: At age 7, despite early ART and viral load (VL) suppression, we continue to observe differences in WM integrity. WM damage observed at age 5 years persists, and new damage is evident. The continued observation of regions with lower FA and higher MD in HIV+ children point to disruptions in ongoing white matter development regardless of early ART. Lastly, in HEU children we find higher FA and lower MD in clusters in the CST tract suggesting that perinatal HIV/ART exposure has a long-term impact on WM development. PMID- 29033798 TI - Self-Regulatory Capacities Are Depleted in a Domain-Specific Manner. AB - Performing an act of self-regulation such as making decisions has been suggested to deplete a common limited resource, which impairs all subsequent self regulatory actions (ego depletion theory). It has however remained unclear whether self-referred decisions truly impair behavioral control even in seemingly unrelated cognitive domains, and which neurophysiological mechanisms are affected by these potential depletion effects. In the current study, we therefore used an inter-individual design to compare two kinds of depletion, namely a self-referred choice-based depletion and a categorization-based switching depletion, to a non depleted control group. We used a backward inhibition (BI) paradigm to assess the effects of depletion on task switching and associated inhibition processes. It was combined with EEG and source localization techniques to assess both behavioral and neurophysiological depletion effects. The results challenge the ego depletion theory in its current form: Opposing the theory's prediction of a general limited resource, which should have yielded comparable effects in both depletion groups, or maybe even a larger depletion in the self-referred choice group, there were stronger performance impairments following a task domain specific depletion (i.e., the switching-based depletion) than following a depletion based on self-referred choices. This suggests at least partly separate and independent resources for various cognitive control processes rather than just one joint resource for all self-regulation activities. The implications are crucial to consider for people making frequent far-reaching decisions e.g., in law or economy. PMID- 29033799 TI - A Critical Assessment of Directed Connectivity Estimates with Artificially Imposed Causality in the Supramammillary-Septo-Hippocampal Circuit. AB - Algorithms for estimating directed connectivity have become indispensable to further understand the neurodynamics between functionally coupled brain areas. The evaluation of directed connectivity on the propagation of brain activity has largely been based on simulated data or toy models, where various hidden properties of neurophysiological data may not be fully recapitulated. In this study, directionality was unequivocally manipulated in the freely moving rat in a unique dataset, where normal oscillatory interactions between the supramammillary nucleus (SuM) and hippocampus (HPC) were attenuated by temporary medial septal (MS) inactivation, and replaced by electrical stimulation of the fornix to evaluate the performance of several directed connectivity assessment methods. The directed transfer function, partial directed coherence, directed coherence, pair wise Geweke-Granger causality, phase slope index, and phase transfer entropy, all found SuM to HPC theta propagation when the MS is inactivated, and HPC activity was driven by peaks of simultaneously recorded SuM theta. As expected from theoretical expectations and simulated data, signal features including coupling strength, signal-to-noise ratio, and stationarity all weakly affected directed connectivity measures. We conclude that all the examined directed connectivity estimates correctly identify artificially imposed uni-directionality of brain oscillations in freely moving animals. Non-auto-regressive modeling based methods appear to be the most robust, and are least affected by inherent features in data such as signal-to-noise ratio and stationarity. PMID- 29033800 TI - Stimulation of Cortico-Subthalamic Projections Amplifies Resting Motor Circuit Activity and Leads to Increased Locomotion in Dopamine-Depleted Mice. AB - Deep brain stimulation (DBS) of the subthalamic nucleus (STN) improves motor function in patients with Parkinson's disease (PD). STN-DBS enables similar improved motor function, including increased movement speed (reduced bradykinesia), in the 6-OHDA dopamine-depletion mouse model of PD. Previous analyses of electrophysiological recordings from STN and motor cortex (M1) have explored signaling changes that correspond to PD and amelioration of PD symptoms. The most common results show an increase in beta frequency power during 'off' states and a reduction in beta during 'on' states. Surprisingly, however, few studies have analyzed whole signal measures of amplitude and coherence during stimulation in freely moving subjects. In previous work by the author, specific transfection of layer five motor cortex projections to the STN revealed an axonal network with collaterals reaching to multiple non-dopaminergic subcortical areas of the brain. The large excitatory shift that stimulation of this axonal network could potentially induce inspired the current study's hypothesis that amplification of excitatory signaling occurs during stimulation of cortico subthalamic projections. The results show that, in awake mice, (1) the root-mean square amplitudes of STN and M1 local field potentials (LFPs) are significantly decreased ipsilateral to chronic unilateral 6-OHDA lesions, (2) stimulation of cortico-subthalamic projections increases the amplitude of M1- and STN-LFPs, and 3) M1-LFP amplitude correlates strongly with locomotion speed in lesioned mice. Together, these findings demonstrate that bradykinesia-reducing stimulation of cortico-subthalamic projections amplifies both cortical and subcortical motor circuit activity in unilaterally dopamine-depleted mice. Most PD treatments are focused on increasing dopamine in the dorsal striatum. However, in this study, stimulation of layer five cortico-subthalamic glutamatergic axons that do not directly project to dopaminergic neurons increased movement and amplified cortico subthalamic excitatory signaling in dopamine-depleted mice. The correlation between M1-LFP amplitude and locomotion speed observed in these mice points to a role for upregulated hyperdirect pathway excitatory signaling in bradykinesia amelioration. In addition to providing insight into the elusive mechanisms of DBS, these motor circuit amplification relationships suggest that specific manipulation of NMDA, AMPA, and/or metabotropic glutamate receptors in the hyperdirect pathway may be beneficial for upregulating signaling and movement in PD. PMID- 29033801 TI - Heavy Drinking in College Students Is Associated with Accelerated Gray Matter Volumetric Decline over a 2 Year Period. AB - Background: Heavy and/or harmful alcohol use while in college is a perennial and significant public health issue. Despite the plethora of cross-sectional research suggesting deleterious effects of alcohol on the brain, there is a lack of literature investigating the longitudinal effects of alcohol consumption on the adolescent brain. We aim to probe the longitudinal effects of college drinking on gray matter change in students during this crucial neurodevelopmental period. Methods: Data were derived from the longitudinal Brain and Alcohol Research in College Students (BARCS) study of whom a subset underwent brain MRI scans at two time points 24 months apart. Students were young adults with a mean age at baseline of about 18.5 years. Based on drinking metrics assessed at both baseline and followup, subjects were classified as sustained abstainers/light drinkers (N = 45) or sustained heavy drinkers (N = 84) based on criteria established in prior literature. Gray matter volumetric change (GMV-c) maps were derived using the longitudinal DARTEL pipeline as implemented in SPM12. GMV-c maps were then subjected to a 1-sample and 2-sample t-test in SPM12 to determine within- and between-group GMV-c differences in drinking groups. Supplementary between-group differences were also computed at baseline only. Results: Within-group analysis revealed significant decline in GMV in both groups across the 2 year followup period. However, tissue loss in the sustained heavy drinking group was more significant, larger per region, and more widespread across regions compared to abstainers/light drinkers. Between-group analysis confirmed the above and showed a greater rate of GMV-c in the heavy drinking group in several brain regions encompassing inferior/medial frontal gyrus, parahippocampus, and anterior cingulate. Supplementary analyses suggest that some of the frontal differences existed at baseline and progressively worsened. Conclusion: Sustained heavy drinking while in college was associated with accelerated GMV decline in brain regions involved with executive functioning, emotional regulation, and memory, which are critical to everyday life functioning. Areas of significant GMV decreases also overlapped largely with brain reward and stress systems implicated in addictive behavior. PMID- 29033802 TI - The Neurobiological Mechanism of Chemical Aversion (Emetic) Therapy for Alcohol Use Disorder: An fMRI Study. AB - A recent NIH epidemiology study found the lifetime prevalence of alcohol use disorder in the United States to be 29%. Alcohol drinking behavior is strongly "learned" via pleasure center activation/reinforcement. Alcohol craving is a powerful desire to drink alcoholic beverages. Craving was added as one of the defining criteria for alcohol use disorder in DSM5, and craving reduction is becoming an increasingly important treatment goal. In the current study, patients with alcohol use disorder received 10 days of inpatient multi-modal treatments at Schick Shadel Hospital (SSH) of Seattle. The treatments included five chemical aversion conditioning sessions that associated alcohol cues (and alcohol) with nausea and emesis. All patients met DSM4 criteria for alcohol use disorder, were heavy drinkers, and reported craving alcohol pre-treatment. Craving reduction was one of the primary treatment goals. This is the first fMRI study to measure the effects of chemical aversion therapy on alcohol craving-related brain activity. Patients were recruited as subjects for the University of Washington (UW) brain scan study following SSH admission but before treatment onset. Prior to treatment, patients reported craving/desire for alcohol. After treatment (after four SSH chemical aversion treatments, again after five SSH chemical treatments, 30 and 90-days post-discharge), these same patients reported avoidance/aversion to alcohol. Most of the participants (69%) reported being still sober 12 months post-treatment. Consistent with a craving reduction mechanism of how chemical aversion therapy facilitates sobriety, results of the UW fMRI brain scans showed significant pre- to post-treatment reductions in craving-related brain activity in the occipital cortex. Additional fMRI brain scan studies are needed to further explore the neurobiological mechanism of chemical aversion therapy treatment for alcohol use disorder, and other substance use disorders for which chemical aversion therapy is used (e.g., opioid dependence and cocaine dependence). Substance use disorders are estimated to affect well over one billion people worldwide. PMID- 29033803 TI - Moderate Maternal Alcohol Exposure on Gestational Day 12 Impacts Anxiety-Like Behavior in Offspring. AB - Among the numerous consequences of prenatal alcohol exposure (PAE) is an increase in anxiety-like behavior that can prove debilitating to daily functioning. A significant body of literature has linked gestational day 12 (G12) heavy ethanol exposure with social anxiety, evident in adolescent males and females. However, the association between non-social anxiety-like behavior and moderate alcohol exposure, a more common pattern of drinking in pregnant women, is yet unidentified. To model moderate PAE (mPAE), we exposed pregnant Sprague-Dawley rats to either room air or vaporized ethanol for 6 h on G12. Adolescent offspring were then tested on postnatal days (P) 41-47 in one of the following four anxiety assays: novelty-induced hypophagia (NIH), elevated plus maze (EPM), light-dark box (LDB) and open-field (OF). Our findings revealed significant increases in measures of anxiety-like behavior in male PAE offspring in the NIH, LDB and OF, with no differences observed in females on any test. Additionally, male offspring who demonstrated heightened anxiety-like behavior as adolescents demonstrated decreased anxiety-like behavior in adulthood, as measured by a marble-burying test (MBT), while females continued to be unaffected in adulthood. These results suggest that mPAE leads to dynamic changes in anxiety-like behavior exclusively in male offspring. PMID- 29033804 TI - Second Language Word Learning through Repetition and Imitation: Functional Networks as a Function of Learning Phase and Language Distance. AB - Introduction and Aim: Repetition and imitation are among the oldest second language (L2) teaching approaches and are frequently used in the context of L2 learning and language therapy, despite some heavy criticism. Current neuroimaging techniques allow the neural mechanisms underlying repetition and imitation to be examined. This fMRI study examines the influence of verbal repetition and imitation on network configuration. Integration changes within and between the cognitive control and language networks were studied, in a pair of linguistically close languages (Spanish and French), and compared to our previous work on a distant language pair (Ghazi-Saidi et al., 2013). Methods: Twelve healthy native Spanish-speaking (L1) adults, and 12 healthy native Persian-speaking adults learned 130 new French (L2) words, through a computerized audiovisual repetition and imitation program. The program presented colored photos of objects. Participants were instructed to look at each photo and pronounce its name as closely as possible to the native template (imitate). Repetition was encouraged as many times as necessary to learn the object's name; phonological cues were provided if necessary. Participants practiced for 15 min, over 30 days, and were tested while naming the same items during fMRI scanning, at week 1 (shallow learning phase) and week 4 (consolidation phase) of training. To compare this set of data with our previous work on Persian speakers, a similar data analysis plan including accuracy rates (AR), response times (RT), and functional integration values for the language and cognitive control network at each measure point was included, with further L1-L2 direct comparisons across the two populations. Results and Discussion: The evidence shows that learning L2 words through repetition induces neuroplasticity at the network level. Specifically, L2 word learners showed increased network integration after 3 weeks of training, with both close and distant language pairs. Moreover, higher network integration was observed in the learners with the close language pair, suggesting that repetition effects on network configuration vary as a function of task complexity. PMID- 29033805 TI - Musical Expertise Increases Top-Down Modulation Over Hippocampal Activation during Familiarity Decisions. AB - The hippocampus has classically been associated with episodic memory, but is sometimes also recruited during semantic memory tasks, especially for the skilled exploration of familiar information. Cognitive control mechanisms guiding semantic memory search may benefit from the set of cognitive processes at stake during musical training. Here, we examined using functional magnetic resonance imaging, whether musical expertise would promote the top-down control of the left inferior frontal gyrus (LIFG) over the generation of hippocampally based goal directed thoughts mediating the familiarity judgment of proverbs and musical items. Analyses of behavioral data confirmed that musical experts more efficiently access familiar melodies than non-musicians although such increased ability did not transfer to verbal semantic memory. At the brain level, musical expertise specifically enhanced the recruitment of the hippocampus during semantic access to melodies, but not proverbs. Additionally, hippocampal activation contributed to speed of access to familiar melodies, but only in musicians. Critically, causal modeling of neural dynamics between LIFG and the hippocampus further showed that top-down excitatory regulation over the hippocampus during familiarity decision specifically increases with musical expertise - an effect that generalized across melodies and proverbs. At the local level, our data show that musical expertise modulates the online recruitment of hippocampal response to serve semantic memory retrieval of familiar melodies. The reconfiguration of memory network dynamics following musical training could constitute a promising framework to understand its ability to preserve brain functions. PMID- 29033806 TI - Is Congenital Amusia a Disconnection Syndrome? A Study Combining Tract- and Network-Based Analysis. AB - Previous studies on congenital amusia mainly focused on the impaired fronto temporal pathway. It is possible that neural pathways of amusia patients on a larger scale are affected. In this study, we investigated changes in structural connections by applying both tract-based and network-based analysis to DTI data of 12 subjects with congenital amusia and 20 demographic-matched normal controls. TBSS (tract-based spatial statistics) was used to detect microstructural changes. The results showed that amusics had higher diffusivity indices in the corpus callosum, the right inferior/superior longitudinal fasciculus, and the right inferior frontal-occipital fasciculus (IFOF). The axial diffusivity values of the right IFOF were negatively correlated with musical scores in the amusia group. Network-based analysis showed that the efficiency of the brain network was reduced in amusics. The impairments of WM tracts were also found to be correlated with reduced network efficiency in amusics. This suggests that impaired WM tracts may lead to the reduced network efficiency seen in amusics. Our findings suggest that congenital amusia is a disconnection syndrome. PMID- 29033807 TI - Walking through Architectural Spaces: The Impact of Interior Forms on Human Brain Dynamics. AB - Neuroarchitecture uses neuroscientific tools to better understand architectural design and its impact on human perception and subjective experience. The form or shape of the built environment is fundamental to architectural design, but not many studies have shown the impact of different forms on the inhabitants' emotions. This study investigated the neurophysiological correlates of different interior forms on the perceivers' affective state and the accompanying brain activity. To understand the impact of naturalistic three-dimensional (3D) architectural forms, it is essential to perceive forms from different perspectives. We computed clusters of form features extracted from pictures of residential interiors and constructed exemplary 3D room models based on and representing different formal clusters. To investigate human brain activity during 3D perception of architectural spaces, we used a mobile brain/body imaging (MoBI) approach recording the electroencephalogram (EEG) of participants while they naturally walk through different interior forms in virtual reality (VR). The results revealed a strong impact of curvature geometries on activity in the anterior cingulate cortex (ACC). Theta band activity in ACC correlated with specific feature types (rs (14) = 0.525, p = 0.037) and geometry (rs (14) = 0.579, p = 0.019), providing evidence for a role of this structure in processing architectural features beyond their emotional impact. The posterior cingulate cortex and the occipital lobe were involved in the perception of different room perspectives during the stroll through the rooms. This study sheds new light on the use of mobile EEG and VR in architectural studies and provides the opportunity to study human brain dynamics in participants that actively explore and realistically experience architectural spaces. PMID- 29033809 TI - Characterizing Neural Entrainment to Hierarchical Linguistic Units using Electroencephalography (EEG). AB - To understand speech, listeners have to combine the words they hear into phrases and sentences. Recent magnetoencephalography (MEG) and electrocorticography (ECoG) studies show that cortical activity is concurrently entrained/synchronized to the rhythms of multiple levels of linguistic units including words, phrases, and sentences. Here we investigate whether this phenomenon can be observed using electroencephalography (EEG), a technique that is more widely available than MEG and ECoG. We show that the EEG responses concurrently track the rhythms of hierarchical linguistic units such as syllables/words, phrases, and sentences. The strength of the sentential-rate response correlates with how well each subject can detect random words embedded in a sequence of sentences. In contrast, only a syllabic-rate response is observed for an unintelligible control stimulus. In sum, EEG provides a useful tool to characterize neural encoding of hierarchical linguistic units, potentially even in individual participants. PMID- 29033808 TI - Size Aftereffects Are Eliminated When Adaptor Stimuli Are Prevented from Reaching Awareness by Continuous Flash Suppression. AB - Size aftereffects are a compelling perceptual phenomenon in which we perceive the size of a stimulus as being different than it actually is following a period of visual stimulation of an adapter stimulus with a different size. Here, we used continuous flash suppression (CFS) to determine if size aftereffects require a high-level appraisal of the adapter stimulus. The strength of size aftereffects was quantified following a 3-s exposure to perceptually visible and invisible adapters. Participants judged the size of a target that followed the adapter in comparison to a subsequent reference. Our experiments demonstrate that the adapter no longer influenced the perceived size of the subsequent target stimulus under CFS. We conclude that the perception of size aftereffects is prevented when CFS is used to suppress the conscious awarness of the adapting stimulus. PMID- 29033810 TI - Cooperation and Competition with Hyperscanning Methods: Review and Future Application to Emotion Domain. AB - Cooperation and competition, as two common and opposite examples of interpersonal dynamics, are thought to be reflected by different cognitive, neural, and behavioral patterns. According to the conventional approach, they have been explored by measuring subjects' reactions during individual performance or turn based interactions in artificial settings, that don't allow on-line, ecological enactment of real-life social exchange. Considering the importance of these factors, and accounting for the complexity of such phenomena, the hyperscanning approach emerged as a multi-subject paradigm since it allows the simultaneous recording of the brain activity from multiple participants interacting. In this view, the present paper aimed at reviewing the most significant work about cooperation and competition by EEG hyperscanning technique, which proved to be a promising tool in capturing the sudden course of social interactions. In detail, the review will consider and group different experimental tasks that have been developed so far: (1) paradigms that used rhythm, music and motor synchronization; (2) card tasks taken from the Game Theory; (3) computerized tasks; and (4) possible real-life applications. Finally, although highlighting the potential contribution of such approach, some important limitations about these paradigms will be elucidated, with a specific focus on the emotional domain. PMID- 29033812 TI - The Successful Use of a Novel Microwave Device in the Treatment of a Plantar Wart. AB - Plantar warts, caused by the human papilloma virus (HPV), are a commonly encountered condition presenting in clinic. In adults, an array of various therapies exists, frequently with modest results particularly with plantar lesions. Microwaves have had limited uses for medical purposes. Recently a new portable microwave device has been approved for the treatment of skin lesions. Prior research has demonstrated immuno-stimulatory effects against HPV infection. We report the application of a novel portable medical microwave unit to treat a long-standing plantar wart which had failed to respond to other treatment modalities. PMID- 29033811 TI - Altered Local Spatiotemporal Consistency of Resting-State BOLD Signals in Patients with Generalized Tonic-Clonic Seizures. AB - The purpose of this study was to evaluate the spatiotemporal Consistency of spontaneous activities in local brain regions in patients with generalized tonic clonic seizures (GTCS). The resting-state fMRI data were acquired from nineteen patients with GTCS and twenty-two matched healthy subjects. FOur-dimensional (spatiotemporal) Consistency of local neural Activities (FOCA) metric was used to analyze the spontaneous activity in whole brain. The FOCA difference between two groups were detected using a two sample t-test analysis. Correlations between the FOCA values and features of seizures were analyzed. The findings of this study showed that patients had significantly increased FOCA in motor-related cortex regions, including bilateral supplementary motor area, paracentral lobule, precentral gyrus and left basal ganglia, as well as a substantial reduction of FOCA in regions of default mode network (DMN) and parietal lobe. In addition, several brain regions in DMN demonstrated more reduction with longer duration of epilepsy and later onset age, and the motor-related regions showed higher FOCA value in accompany with later onset age. These findings implicated the abnormality of motor-related cortical network in GTCS which were associated with the genesis and propagation of epileptiform activity. And the decreased FOCA in DMN might reflect the intrinsic disturbance of brain activity. Moreover, our study supported that the FOCA might be potential tool to investigate local brain spontaneous activity related with the epileptic activity, and to provide important insights into understanding the underlying pathophysiological mechanisms of GTCS. PMID- 29033813 TI - Recurrence of Melanoma after Starting Apremilast for Psoriasis. AB - This is a report on a 32-year-old man with a history of two previous melanomas with concurrent plaque-type psoriasis. His history dates to 2009, when he was diagnosed with his first melanoma on the right occiput, Clark's level IV, tumor thickness 1.53 mm, nonulcerated, mitotic index 1/mm2. He subsequently developed nodal recurrence after an initial negative sentinel lymph node biopsy and was treated with complete lymph node dissection. In 2012, he was diagnosed with a second primary melanoma on the right upper chest, Clark's level IV, tumor thickness 0.9 mm, nonulcerated, mitotic index 3/mm2. Due to worsening longstanding plaque-type psoriasis in 2015 he was placed on apremilast, with a dramatic improvement in his psoriasis within 4 months of starting therapy. Shortly thereafter the patient developed multiple blue-colored skin papules on the scalp near his first melanoma and on the trunk and upper limbs that on biopsy proved to be due to cutaneous metastasis of melanoma. The patient discontinued the apremilast as there was a concern that his tumor had recurred because of the drug. Apremilast is a phosphodiesterase-4 inhibitor that impairs the innate immune system, which mediates cancer immunosurveillance. It is postulated that the use of apremilast in our patient resulted in impaired cancer immunosurveillance and led to a recurrence of his melanoma. Although one cannot exclude the possibility of coincidental recurrence of an already metastatic melanoma (to the lymph nodes), caution should be exercised when considering apremilast in the context of patients with known malignancy, in particular melanoma. PMID- 29033814 TI - A Case of Aplasia Cutis Congenita Type VI: Bart Syndrome. AB - Aplasia cutis congenita type VI, also known as Bart syndrome, is a rare genetic mechanobullous disorder characterized by congenital localized absence of skin, mucocutaneous blistering lesions, and nail abnormalities. We present the case of a 4-h-old male newborn who presented with complete absence of skin over the anteromedial aspect of both lower legs associated with nail dystrophy since birth. After a few days, he developed blisters that were consistent with epidermolysis bullosa in histopathological examination. There was no systemic involvement such as pyloric atresia, ureteral stenosis, renal abnormalities, or arthrogryposis. All laboratory work and imaging studies were normal. A diagnosis of Bart syndrome was made based on previous presentation. We managed the patient with conservative methods. Complete epithelialization occurred after several weeks. PMID- 29033815 TI - Cutaneous Nocardiosis Simulating Cutaneous Lymphatic Sporotrichosis. AB - Sporotrichosis is the subcutaneous mycosis caused by several species of the Sporothrix genus. With worldwide occurrence, the State of Rio de Janeiro is presently undergoing a zoonotic sporotrichosis epidemic. The form of lymphocutaneous nocardiosis is rare, being caused especially by Nocardia brasiliensis. It appears as a nodular or ulcerated lesion, with multiple painful erythematous nodules or satellite pustules distributed along the lymphatic tract, similar to the lymphocutaneous variant of sporotrichosis. We present a 61-year old man who, after an insect bite in the left leg, developed an ulcerated lesion associated with ascending lymphangitis, nonresponsive to previous antibiotic therapies. The patient was admitted for investigation, based on the main diagnostic hypothesis of lymphatic cutaneous sporotrichosis entailed by the highly suggestive morphology, associated with the epidemiologic information that he is a resident of the city of Rio de Janeiro. While culture results were being awaited, the patient was medicated with sulfamethoxazole-trimethoprim to cover CA MRSA and evolved with total healing of the lesions. After hospital discharge, using an ulcer fragment, an Actinomyces sp. was cultivated and N. brasiliensis was identified by molecular biology. The objective of this report is to demonstrate a case of lymphocutaneous nocardiosis caused by N. brasiliensis after a probable insect bite. Despite the patient being a resident of the State of Rio de Janeiro (endemic region for sporotrichosis), it is highlighted that it is necessary to be aware of the differential diagnoses of an ulcerated lesion with lymphangitis, favoring an early diagnosis and appropriate treatment of the illness. PMID- 29033816 TI - Verruciform Xanthoma of a Lower Lip Lesion: A New Case and Review of the Literature. AB - A non-smoking man in his seventh decade presented with a lesion he had had for about 5 years on the right external surface of the lip 1 mm from the vermilion border. On physical examination, a yellowish-coloured, non-tender, verrucous mass of 0.5 * 0.7 cm was observed. A histopathological examination of the first 3-mm punch biopsy was non-diagnostic. The histopathological evaluation of a second, 5 mm-deep punch biopsy made by a pathology expert in oral lesions revealed a diagnosis of verruciform xanthoma. The key to the diagnosis of verruciform xanthoma is to recognize xanthoma cells. However, these cells may be insufficient in number in small and superficial biopsy material and overlooked by a pathologist especially when lacking knowledge of this uncommon lesion. Verruciform xanthoma of the lower lip at the vermilion border is an extremely rare entity described in 5 cases worldwide to date. We aimed to bring verruciform xanthoma to readers' attention for a differential diagnosis of lower lip diseases and to prevent overdiagnosis and overtreatment of this lesion unfamiliar to otorhinolaryngologists. PMID- 29033817 TI - Cholesterotic Fibrous Histiocytoma in a Patient with Metabolic Syndrome. AB - Among the many variants of dermatofibroma, dermatofibroma with cholesterol cleft (cholesterotic fibrous histiocytoma) is extremely rare. Here, we describe the case of a 50-year-old male patient with a cholesterotic fibrous histiocytoma on his left lower leg. He presented with a hyperkeratotic nodule 6 mm in diameter with a brown surface on the extensor surface of his left lower leg. The lesion had developed over the course of a few years without any tendency to heal. A skin biopsy performed on the tumor showed histopathological findings compatible with those of dermatofibroma. Interestingly, the lesion included many cholesterol clefts, as well as foamy histiocytes and multinucleated giant cells around them. He had had metabolic syndrome for years. To the best of our knowledge, this is the first report of a cholesterotic fibrous histiocytoma in a patient with metabolic syndrome. We conclude that the altered microenvironment caused by metabolic syndrome, as well as hyperlipoproteinemia itself, may play a role in the pathogenesis of this rare case. PMID- 29033818 TI - Itolizumab - A New Biologic for Management of Psoriasis and Psoriatic Arthritis. AB - Psoriasis is a chronic, relapsing, inflammatory, immune-mediated systemic disease with mainly skin and joint manifestations. The available treatment options to cure psoriasis include topical therapy, phototherapy, and biological therapy. Biological therapy has become a promising option due to the rapid action and less adverse effects associated with its use. The newly developed biologic itolizumab is a humanized recombinant anti-CD6 monoclonal antibody of IgG1 isotype that binds to domain 1 of CD6, thereby immunomodulating human lymphocytes without interfering with the binding of CD6 to the activated leukocyte-cell adhesion molecule. In this case series, a total of 5 patients with chronic plaque psoriasis were treated with itolizumab. They exhibited a rapid PASI 75 response after 4 doses of itolizumab infusion. The patients were poor responders to methotrexate and/or cyclosporine therapy for a long time. All infusions were well tolerated by all patients with no adverse reactions or infections during the treatment period. Itolizumab can be a good option for management of psoriasis and psoriatic arthritis. PMID- 29033819 TI - An Unusual Presentation of Pyoderma Gangrenosum Leading to Systemic Inflammatory Response Syndrome. AB - This is a report of an atypical presentation of pyoderma gangrenosum (PG) in a 26 year-old male who had a negative septic screen. The patient had a life threatening presentation requiring an intensive care unit (ICU) admission for vasopressor support. It was thought that the likely cause of circulatory collapse was an overwhelming cytokine reaction or systemic inflammatory response syndrome (SIRS) secondary to extensive PG lesions rather than septic shock. The patient presented with multiple large ulcers, the largest being 4 cm in diameter on the central chest. He developed fevers and circulatory shock preceding his ICU admission. Microbiological specimens, including blood cultures and wound swabs, were negative for any growth (bacterial, fungal, and tuberculosis). No infective foci could be identified as a cause of hemodynamic instability. During admission, the patient's condition was complicated by multi-organ dysfunction. Wound debridement extending to the deep fascia on the anterior chest, back, bilateral shoulders, and right upper thigh was deemed necessary and performed by the plastic surgery team. Histopathology showed abundant neutrophils but could not confirm an infective process. Overall, the patient made an impressive recovery with almost complete healing of all lesions following oral prednisolone alone. Based on the history and clinical and laboratory findings, a diagnosis of PG complicated by a SIRS was favored. Very few cases of neutrophilic dermatoses have been described in this way. A similar presentation has been described in a 76 year-old female with lower-leg ulcers who developed circulatory shock and required an amputation. Lesions continued to appear despite antibiotics and surgical treatment. Septic screen was negative. She was subsequently diagnosed with PG and recovered rapidly after steroid therapy. PMID- 29033820 TI - Pachyderma in Primary Cutaneous NK and T-Cell Lymphoma and Leukemia Cutis. AB - BACKGROUND: Pachyderma is defined as severely thickened skin with deep folds and is occasionally observed with primary cutaneous NK and T-cell lymphoma (pCNKTCL), primary cutaneous B-cell lymphoma (pCBCL), and leukemia cutis (LC). AIM: To describe the clinical, histological, and therapeutic particularities of a series of pCNKTCL, pCBCL, and LC patients with pachyderma. RESULTS: In a series of pCNKTCL (n = 70), pCBCL (n = 12), and LC (n = 2) patients followed up during 9 years, 6 cases of pachyderma were observed. Pachyderma occurred on the arms (n = 2), thighs (n = 1), forehead (n = 1), and face (n = 2). The mean age of the patients was 69 years (51-82). The stages were erythrodermic (T4) mycosis fungoides (MF) (n = 1), folliculotropic MF (FMF) (n = 2), classic (T2) MF (n = 2), and chronic myeloid leukemia (n = 1). The erythrodermic MF patient with acute pachyderma on the right arm responded rapidly to oral steroids. The other cases were indolent, appeared progressively, and were highly treatment resistant. Histology revealed dense dermal neoplastic infiltration. The immunohistological profile of the pachydermic lesions was similar to common MF and LC. CONCLUSION: Pachyderma is an atypical manifestation of MF and LC and may occur on the face (FMF) or the extremities (MF). The rapidly appearing pachyderma may be transitory and responds readily to oral steroids. PMID- 29033821 TI - Certolizumab Pegol-Induced Folliculitis-Like Lichenoid Sarcoidosis in a Patient with Rheumatoid Arthritis. AB - Anti-tumor necrosis factor alpha (TNF-alpha) biologic agents are used for treating refractory sarcoidosis. However, sarcoidosis-like epithelioid cell granulomas may develop during anti-TNF-alpha treatment. A 63-year-old man suffering from rheumatoid arthritis was treated with oral methotrexate and methylprednisolone for 4 years. He subsequently started biweekly subcutaneous injections of certolizumab pegol. Three months later, light red follicular papules developed on his chest and they spread over the trunk and bilateral upper arms. Histopathology of a lesion showed a sharply demarcated noncaseating epithelioid cell granuloma with multi-nucleated giant cells in the upper perifollicular area. The follicular papules subsided following discontinuation of certolizumab pegol. Folliculitis-like lichenoid sarcoidosis should be included among the adverse cutaneous reactions of anti-TNF-alpha treatment. PMID- 29033822 TI - Facial Edema in an Elderly Man: An Unusual Presentation of Nonepisodic Angioedema with Eosinophilia. AB - Nonepisodic angioedema with eosinophilia (NEAE) is a rare allergic disease with a young Japanese and East Asian female predominance. NEAE features transient, nonrecurrent angioedema and peripheral blood eosinophilia without visceral organ involvement. Angioedema in NEAE occurs on the extremities, while the trunk and face are rarely involved. Here, we report a case of NEAE affecting only the face in an 80-year-old Japanese man. He was otherwise healthy and took no medication until the sudden development of angioedema on the face. The extremities and trunk were not involved. Skin biopsy examination revealed eosinophilic infiltration and degranulation between collagen bundles through the entire dermis, and perivascular and perifollicular infiltration of eosinophils and lymphocytes, but no evidence of vasculitis. Peripheral hypereosinophilia and high serum thymus- and activation-regulated chemokine (TARC) level were noted. Visceral organ involvement, parasite infection, and an allergic response were not detected in the patient. Administration of oral corticosteroid improved his symptoms rapidly and dramatically with improvements in the blood eosinophil count and serum TARC level. After the corticosteroid was discontinued, no recurrence was observed for 3 years. Thus, he was diagnosed as having NEAE. It should be noted that angioedema with eosinophilia might occur with an unusual presentation and might develop in elderly patients. PMID- 29033823 TI - Successful Topical Treatment of Pigmented Purpuric Lichenoid Dermatitis of Gougerot-Blum in a Young Patient: A Case Report and Summary of the Most Common Pigmented Purpuric Dermatoses. AB - We report the case of a 12-year-old girl who presented a rash with reddish-brown patches on the trunk and extremities indicative of pigmented purpuric lichenoid dermatitis of Gougerot-Blum (PPLD). The histological findings were characteristic for PPLD, thus supporting the diagnosis. Topically administered corticosteroid led to a fast resolution of all symptoms. PPLD is not seen commonly in young patients and is most often described as responding poorly to treatment with topical corticosteroids. However, the case presented here shows both that PPLD can be seen in adolescence and that the condition may be treated successfully with an intense regime of topical corticosteroids. PPLD belongs to the group of pigmented purpuric dermatoses. The 5 most common pigmented purpuric dermatoses are summarized with respect to their clinical and paraclinical characteristics. PMID- 29033824 TI - Optical Coherence Tomography Evolution in a Case of X-Linked Juvenile Retinoschisis: 15 Years of Follow-Up. AB - PURPOSE: We present the evolution of X-linked juvenile retinoschisis (XLRS) in a male patient using optical coherence tomography (OCT) with a long-term follow-up time of 15 years. CASE DESCRIPTION: A 10-year-old male patient presented at the Medical Retina Department of our hospital complaining for blurred vision in both eyes. At the initial presentation in 2001, his best corrected visual acuity (BCVA) was 6/12 in both eyes on the Snellen chart. Based on clinical and OCT findings, the diagnosis of XLRS was made, and it was confirmed by genetic testing. No treatment was performed, but the patient was regularly examined. His BCVA and OCT findings remained relatively stable from 2001 to 2012, when BCVA decreased to 6/18 and 6/24 in the right and left eye, respectively. In 2016, his BCVA was 6/24 and 6/36 in right and left eye, respectively, while OCT depicted significant macular thinning, accompanied by irregularities of the foveal contour in both eyes. CONCLUSION: Patients with XLRS should be monitored regularly to evaluate the progression of the disease and manage the potential complications. PMID- 29033826 TI - Everyday Functioning Benefits from an Assisted Living Platform amongst Frail Older Adults and Their Caregivers. AB - Ambient assisted living technologies (AAL) are regarded as a promising solution to support aging in place. Yet, their efficacy has to be demonstrated in terms of benefits for independent living and for work conditions of caregivers. Hence, the purpose of this study was to assess the benefits of a multi-task AAL platform for both Frail older Individuals (FIs) and professional caregivers with respect to everyday functioning and caregiver burden. In this context, a 6-month field study involved 32 FIs living at home (half of them were equipped by the platform and the remaining half were not, as a control condition) and their caregivers. Everyday functioning measures were reported by frail participants and caregivers. Self-reported burden measures of caregiver were also collected. The main results showed that the caregiver's estimates of everyday functioning of equipped participants were unchanged across time, while they decreased for the control participants. Also, a reduction of self-reported objective burden was obtained after 6 months of AAL intervention for the equipped group, compared to the control group. Overall, these results highlighted the potential of AAL as a relevant environmental support for preventing both functional losses in FIs and objective burden professional caregiver. PMID- 29033825 TI - Acute Stress Affects the Expression of Hippocampal Mu Oscillations in an Age Dependent Manner. AB - Anxiolytic drugs are widely used in the elderly, a population particularly sensitive to stress. Stress, aging and anxiolytics all affect low-frequency oscillations in the hippocampus and prefrontal cortex (PFC) independently, but the interactions between these factors remain unclear. Here, we compared the effects of stress (elevated platform, EP) and anxiolytics (diazepam, DZP) on extracellular field potentials (EFP) in the PFC, parietal cortex and hippocampus (dorsal and ventral parts) of adult (8 months) and aged (18 months) Wistar rats. A potential source of confusion in the experimental studies in rodents comes from locomotion-related theta (6-12 Hz) oscillations, which may overshadow the direct effects of anxiety on low-frequency and especially on the high-amplitude oscillations in the Mu range (7-12 Hz), related to arousal. Animals were restrained to avoid any confound and isolate the direct effects of stress from theta oscillations related to stress-induced locomotion. We identified transient, high-amplitude oscillations in the 7-12 Hz range ("Mu-bursts") in the PFC, parietal cortex and only in the dorsal part of hippocampus. At rest, aged rats displayed more Mu-bursts than adults. Stress acted differently on Mu-bursts depending on age: it increases vs. decreases burst, in adult and aged animals, respectively. In contrast DZP (1 mg/kg) acted the same way in stressed adult and age animal: it decreased the occurrence of Mu-bursts, as well as their co occurrence. This is consistent with DZP acting as a positive allosteric modulator of GABAA receptors, which globally potentiates inhibition and has anxiolytic effects. Overall, the effect of benzodiazepines on stressed animals was to restore Mu burst activity in adults but to strongly diminish them in aged rats. This work suggests Mu-bursts as a neural marker to study the impact of stress and DZP on age. PMID- 29033827 TI - Excessive Sleepiness and Longer Nighttime in Bed Increase the Risk of Cognitive Decline in Frail Elderly Subjects: The MAPT-Sleep Study. AB - Objective: To identify self-reported sleep-wake disturbances that increase the risk of cognitive decline over 1-year follow-up in frail participants. Background: Risk factors for cognitive impairment need to be better identified especially at earliest stages of the pathogenesis. Sleep-wake disturbances may be critical factors to consider and were thus being assessed in this at-risk population for cognitive decline. Methods: Frail elderly participants aged >=70 years were selected from a subsample of the Multi-domain Alzheimer Preventive Trial (MAPT) for a sleep assessment (MAPT-sleep study) at 18-month follow-up (M18). Sleep-wake disturbances were evaluated using a clinical interview (duration of daytime and nighttime sleep, time in bed, number of naps, and presence of clinically-defined sleep disorders) and numerous validated questionnaires [Epworth Sleepiness Scale for excessive daytime sleepiness (EDS), Insomnia Severity Scale and Berlin Questionnaire]. Cognitive decline was defined as a difference between the MMSE and cognitive composite scores at M24 and M36 that was ranked in the lowest decile. Multivariate logistic regression models adjusted for several potential confounding factors were performed. Results: Among the 479 frail participants, 63 developed MMSE-cognitive decline and 50 cognitive composite score decrease between M24 and M36. Subjects with EDS had an increased risk of MMSE decline (OR = 2.46; 95% CI [1.28; 4.71], p = 0.007). A longer time spent in bed during night was associated with cognitive composite score decline (OR = 1.32 [1.03; 1.71], p = 0.03). These associations persisted when controlling for potential confounders. Patients with MMSE score decline and EDS had more naps, clinically-defined REM-sleep Behavior Disorder, fatigue and insomnia symptoms, while patients with cognitive composite score decline with longer time in bed had increased 24-h total sleep time duration but with higher wake time after onset. Conclusions: The risk of cognitive decline is higher in frailty subjects with EDS and longer nighttime in bed. Early detection of sleep-wake disturbances might help identifying frail subjects at risk of cognitive decline to further propose sleep health strategies to prevent cognitive impairment. http://www.clinicaltrials.gov NCT00672685; Date of registration May, 2nd 2008. PMID- 29033828 TI - Perspective Insights of Exosomes in Neurodegenerative Diseases: A Critical Appraisal. AB - Exosomes are small membranous entities of endocytic origin. Their production by a wide variety of cells in eukaryotes implicates their roles in the execution of essential processes, especially cellular communication. Exosomes are secreted under both physiological and pathophysiological conditions, and their actions on neighboring and distant cells lead to the modulations of cellular behaviors. They also assist in the delivery of disease causing entities, such as prions, alpha syn, and tau, and thus, facilitate spread to non-effected regions and accelerate the progressions of neurodegenerative diseases. The characterization of exosomes, provides information on aberrant processes, and thus, exosome analysis has many clinical applications. Because they are associated with the transport of different cellular entities across the blood-brain barrier (BBB), exosomes might be useful for delivering drugs and other therapeutic molecules to brain. Herein, we review roles played by exosomes in different neurodegenerative diseases, and the possibilities of using them as diagnostic biomarkers of disease progression, drug delivery vehicles and in gene therapy. PMID- 29033829 TI - Exercise Training Increases Parietal Lobe Cerebral Blood Flow in Chronic Stroke: An Observational Study. AB - Exercise is increasingly recommended as an essential component of stroke rehabilitation, yet uncertainty remains with respect to its direct effect on the cerebral vasculature. The current study first demonstrated the repeatability of pseudo-continuous arterial spin labeling (ASL) magnetic resonance imaging (MRI) in older adults with stroke, and then investigated the change in cerebrovascular function following a 6-month cardiovascular rehabilitation program. In the repeatability study, 12 participants at least 3 months post-stroke underwent two ASL imaging scans 1 month apart. In the prospective observational study, eight individuals underwent ASL imaging and aerobic fitness testing before and after a 6-month cardiovascular rehabilitation program. Cerebral blood flow (CBF) and the spatial coefficient of variation of CBF (sCoV) were quantified to characterize tissue-level perfusion and large cerebral artery transit time properties, respectively. In repeat scanning, intraclass correlation (ICC) indicated moderate test-retest reliability for global gray matter CBF (ICC = 0.73) and excellent reliability for sCoV (ICC = 0.94). In the observational study, gray matter CBF increased after training (baseline: 40 +/- 13 vs. 6-month: 46 +/- 12 ml.100 g 1.min-1, P = 0.036). The greatest change occurred in the parietal lobe (+18 +/- 12%). Gray matter sCoV, however, did not change following training (P = 0.31). This study provides preliminary evidence that exercise-based rehabilitation in chronic stroke enhances tissue-level perfusion, without changing the relative hemodynamic properties of the large cerebral arteries. PMID- 29033830 TI - The Decrease of Uch-L1 Activity Is a Common Mechanism Responsible for Abeta 42 Accumulation in Alzheimer's and Vascular Disease. AB - Alzheimer's disease (AD) is a multifactorial pathology causing common brain spectrum disorders in affected patients. These mixed neurological disorders not only include structural AD brain changes but also cerebrovascular lesions. The main aim of the present issue is to find the factors shared by the two pathologies. The decrease of ubiquitin C-terminal hydrolase L1 (Uch-L1), a major neuronal enzyme involved in the elimination of misfolded proteins, was observed in ischemic injury as well as in AD, but its role in the pathogenesis of AD is far to be clear. In this study we demonstrated that Uch-L1 inhibition induces BACE1 up-regulation and increases neuronal and apoptotic cell death in control as well as in transgenic AD mouse model subjected to Bengal Rose, a light-sensitive dye inducing that induces a cortical infarction through photo-activation. Under the same conditions we also found a significant activation of NF-kappaB. Thus, the restoration of Uch-L1 was able to completely prevent both the increase in BACE1 protein levels and the amount of cell death. Our data suggest that the Uch L1-mediated BACE1 up-regulation could be an important mechanism responsible for Abeta peptides accumulation in vascular injury and indicate that the modulation of the activity of this enzyme could provide new therapeutic strategies in AD. PMID- 29033831 TI - Accumulation of 123I-Ioflupane Is a Useful Marker of the Efficacy of Selegiline Monotherapy in Drug-Naive Parkinson's Disease. AB - Background: Selegiline enhances the patient's endogenous dopamine by inhibiting dopamine metabolism. The efficacy of selegiline monotherapy for drug-naive Parkinson's disease (PD) patients may depend on the degree of dopaminergic neuronal degeneration. 123I-Ioflupane single photon emission computed tomography (SPECT) and 123I-meta-iodobenzylguanidine (MIBG) myocardial scintigraphy are diagnostic methods to assess the pharmacological and pathological changes in PD. Objective: We examined the utility of these imaging methods to predict the efficacy of selegiline monotherapy for motor symptoms in drug-naive PD patients. Methods: We observed the efficacy of selegiline monotherapy in 28 drug-naive PD patients and compared the improvement in motor function and the imaging findings. These patients received selegiline monotherapy, and the amount was increased to the optimal dose in clinical practice. Motor function was assessed using the Unified Parkinson's Rating Scale (UPDRS) at baseline and at the stable dose. Imaging was performed before treatment, and the striatal Specific Binding Ratio (SBR) of the 123I-Ioflupane SPECT and the Heart-to-Mediastinum (H/M) ratio of the 123I-MIBG myocardial scintigraphy were calculated. Both ratios were compared with improvements in scores for motor assessment using Pearson's correlation coefficient. Results: The mean UPDRS part III score significantly improved with at least 5.0 mg/day of selegiline. Further dose escalation did not improve the mean motor score. The percent improvement in the motor score from baseline showed a significant negative correlation with the SBR of average of the right and left striatum, but not with the H/M ratio. Multiple regression analysis using patient's background factors showed that percent improvement in the UPDRS part III score directly correlate with the SBR (p = 0.04), but not with the age (p = 0.72), disease duration (p = 0.31), baseline UPDRS part III (p = 0.77) and the drug dose (p = 0.26). Conclusion: PD patients with a lower accumulation of 123I Ioflupane in the striatum can have greater improvement with selegiline monotherapy. PMID- 29033832 TI - Cyclotides Isolated from an Ipecac Root Extract Antagonize the Corticotropin Releasing Factor Type 1 Receptor. AB - Cyclotides are plant derived, cystine-knot stabilized peptides characterized by their natural abundance, sequence variability and structural plasticity. They are abundantly expressed in Rubiaceae, Psychotrieae in particular. Previously the cyclotide kalata B7 was identified to modulate the human oxytocin and vasopressin G protein-coupled receptors (GPCRs), providing molecular validation of the plants' uterotonic properties and further establishing cyclotides as valuable source for GPCR ligand design. In this study we screened a cyclotide extract derived from the root powder of the South American medicinal plant ipecac (Carapichea ipecacuanha) for its GPCR modulating activity of the corticotropin releasing factor type 1 receptor (CRF1R). We identified and characterized seven novel cyclotides. One cyclotide, caripe 8, isolated from the most active fraction, was further analyzed and found to antagonize the CRF1R. A nanomolar concentration of this cyclotide (260 nM) reduced CRF potency by ~4.5-fold. In contrast, caripe 8 did not inhibit forskolin-, or vasopressin-stimulated cAMP responses at the vasopressin V2 receptor, suggesting a CRF1R-specific mode-of action. These results in conjunction with our previous findings establish cyclotides as modulators of both classes A and B GPCRs. Given the diversity of cyclotides, our data point to other cyclotide-GPCR interactions as potentially important sources of drug-like molecules. PMID- 29033833 TI - Cell-Based Therapies for Tissue Fibrosis. AB - The development of tissue fibrosis in the context of a wound-healing response to injury is common to many chronic diseases. Unregulated or persistent fibrogenesis may lead to structural and functional changes in organs that increase the risk of significant morbidity and mortality. We will explore the natural history, epidemiology, and pathogenesis of fibrotic disease affecting the lungs, kidneys, and liver as dysfunction of these organs is responsible for a substantial proportion of global mortality. For many patients with end-stage disease, organ transplantation is the only effective therapy to prolong life. However, not all patients are candidates for the major surgical interventions and life-long immunosuppression required for a successful outcome and donor organs may not be available to meet the clinical need. We will provide an overview of the latest treatment strategies for these conditions and will focus on stem or progenitor cell-based therapies for which there is substantial pre-clinical evidence based on animal models as well as early phase clinical trials of cell-based therapy in man. PMID- 29033835 TI - Farnesol Has an Anti-obesity Effect in High-Fat Diet-Induced Obese Mice and Induces the Development of Beige Adipocytes in Human Adipose Tissue Derived Mesenchymal Stem Cells. AB - Brown adipocytes dissipate energy as heat and hence have an important therapeutic capacity for obesity. Development of brown-like adipocytes (also called beige) is also another attractive target for obesity treatment. Here, we investigated the effect of farnesol, an isoprenoid, on adipogenesis in adipocytes and on the browning of white adipose tissue (WAT) as well as on the weight gain of high-fat diet (HFD)-induced obese mice. Farnesol inhibited adipogenesis and the related key regulators including peroxisome proliferator-activated receptor gamma (PPARgamma) and CCAAT/enhancer binding protein alpha through the up-regulation of AMP-activated protein kinase in 3T3-L1 murine adipocytes and human adipose tissue derived mesenchymal stem cells (hAMSCs). Farnesol markedly increased the expression of uncoupling protein 1 and PPARgamma coactivator 1 alpha in differentiated hAMSCs. In addition, farnesol limited the weight gain in HFD obese mice and induced the development of beige adipocytes in both inguinal and epididymal WAT. These results suggest that farnesol could be a potential therapeutic agent for obesity treatment. PMID- 29033834 TI - TC299423, a Novel Agonist for Nicotinic Acetylcholine Receptors. AB - (E)-5-(Pyrimidin-5-yl)-1,2,3,4,7,8-hexahydroazocine (TC299423) is a novel agonist for nicotinic acetylcholine receptors (nAChRs). We examined its efficacy, affinity, and potency for alpha6beta2* (alpha6beta2-containing), alpha4beta2*, and alpha3beta4* nAChRs, using [125I]-epibatidine binding, whole-cell patch-clamp recordings, synaptosomal 86Rb+ efflux, [3H]-dopamine release, and [3H] acetylcholine release. TC299423 displayed an EC50 of 30-60 nM for alpha6beta2* nAChRs in patch-clamp recordings and [3H]-dopamine release assays. Its potency for alpha6beta2* in these assays was 2.5-fold greater than that for alpha4beta2*, and much greater than that for alpha3beta4*-mediated [3H]-acetylcholine release. We observed no major off-target binding on 70 diverse molecular targets. TC299423 was bioavailable after intraperitoneal or oral administration. Locomotor assays, measured with gain-of-function, mutant alpha6 (alpha6L9'S) nAChR mice, show that TC299423 elicits alpha6beta2* nAChR-mediated responses at low doses. Conditioned place preference assays show that low-dose TC299423 also produces significant reward in alpha6L9'S mice, and modest reward in WT mice, through a mechanism that probably involves alpha6(non-alpha4)beta2* nAChRs. However, TC299423 did not suppress nicotine self-administration in rats, indicating that it did not block nicotine reinforcement in the dosage range that was tested. In a hot-plate test, TC299423 evoked antinociceptive responses in mice similar to those of nicotine. TC299423 and nicotine similarly inhibited mouse marble burying as a measure of anxiolytic effects. Taken together, our data suggest that TC299423 will be a useful small-molecule agonist for future in vitro and in vivo studies of nAChR function and physiology. PMID- 29033837 TI - Dioscin Inhibits HSC-T6 Cell Migration via Adjusting SDC-4 Expression: Insights from iTRAQ-Based Quantitative Proteomics. AB - Hepatic stellate cells (HSCs) migration, an important bioprocess, contributes to the development of liver fibrosis. Our previous studies have found the potent activity of dioscin against liver fibrosis by inhibiting HSCs proliferation, triggering the senescence and inducing apoptosis of activated HSCs, but the molecular mechanisms associated with cell migration were not clarified. In this work, iTRAQ (isobaric tags for relative and absolution quantitation)-based quantitative proteomics study was carried out, and a total of 1566 differentially expressed proteins with fold change >=2.0 and p < 0.05 were identified in HSC-T6 cells treated by dioscin (5.0 MUg/mL). Based on Gene Ontology classification, String and KEGG pathway assays, the effects of dioscin to inhibit cell migration via regulating SDC-4 were carried out. The results of wound-healing, cell migration and western blotting assays indicated that dioscin significantly inhibit HSC-T6 cell migration through SDC-4-dependent signal pathway by affecting the expression levels of Fn, PKCalpha, Src, FAK, and ERK1/2. Specific SDC-4 knockdown by shRNA also blocked HSC-T6 cell migration, and dioscin slightly enhanced the inhibiting effect. Taken together, the present work showed that SDC 4 played a crucial role on HSC-T6 cell adhesion and migration of dioscin against liver fibrosis, which may be one potent therapeutic target for fibrotic diseases. PMID- 29033838 TI - The Target Residence Time of Antihistamines Determines Their Antagonism of the G Protein-Coupled Histamine H1 Receptor. AB - The pharmacodynamics of drug-candidates is often optimized by metrics that describe target binding (Kd or Ki value) or target modulation (IC50). However, these metrics are determined at equilibrium conditions, and consequently information regarding the onset and offset of target engagement and modulation is lost. Drug-target residence time is a measure for the lifetime of the drug-target complex, which has recently been receiving considerable interest, as target residence time is shown to have prognostic value for the in vivo efficacy of several drugs. In this study, we have investigated the relation between the increased residence time of antihistamines at the histamine H1 receptor (H1R) and the duration of effective target-inhibition by these antagonists. Hela cells, endogenously expressing low levels of the H1R, were incubated with a series of antihistamines and dissociation was initiated by washing away the unbound antihistamines. Using a calcium-sensitive fluorescent dye and a label free, dynamic mass redistribution based assay, functional recovery of the H1R responsiveness was measured by stimulating the cells with histamine over time, and the recovery was quantified as the receptor recovery time. Using these assays, we determined that the receptor recovery time for a set of antihistamines differed more than 40-fold and was highly correlated to their H1R residence times, as determined with competitive radioligand binding experiments to the H1R in a cell homogenate. Thus, the receptor recovery time is proposed as a cell based and physiologically relevant metric for the lead optimization of G protein coupled receptor antagonists, like the H1R antagonists. Both, label-free or real time, classical signaling assays allow an efficient and physiologically relevant determination of kinetic properties of drug molecules. PMID- 29033836 TI - Delivery of Antioxidant and Anti-inflammatory Agents for Tissue Engineered Vascular Grafts. AB - The treatment of patients with severe coronary and peripheral artery disease represents a significant clinical need, especially for those patients that require a bypass graft and do not have viable veins for autologous grafting. Tissue engineering is being investigated to generate an alternative graft. While tissue engineering requires surgical intervention, the release of pharmacological agents is also an important part of many tissue engineering strategies. Delivery of these agents offers the potential to overcome the major concerns for graft patency and viability. These concerns are related to an extended inflammatory response and its impact on vascular cells such as endothelial cells. This review discusses the drugs that have been released from vascular tissue engineering scaffolds and some of the non-traditional ways that the drugs are presented to the cells. The impact of antioxidant compounds and gasotransmitters, such as nitric oxide and carbon monoxide, are discussed in detail. The application of tissue engineering and drug delivery principles to biodegradable stents is also briefly discussed. Overall, there are scaffold-based drug delivery techniques that have shown promise for vascular tissue engineering, but much of this work is in the early stages and there are still opportunities to incorporate additional drugs to modulate the inflammatory process. PMID- 29033839 TI - Schisandra chinensis Stem Ameliorates 3-Nitropropionic Acid-Induced Striatal Toxicity via Activation of the Nrf2 Pathway and Inhibition of the MAPKs and NF kappaB Pathways. AB - The beneficial value of the stems of Schisandra chinensis (SSC) in neurological diseases is unclear. We examined whether SSC aqueous extract (SSCE) alleviates striatal toxicity in a 3-nitropropionic acid (3-NPA)-induced mouse model of Huntington's disease (HD). SSCE (75, 150, or 300 mg/kg/day, p.o.) was given daily before or after 3-NPA treatment. Pre- and onset-treatment with SSCE displayed a significant protective effect and pretreatment was more effective as assessed by neurological scores and survival rate. These effects were related to reductions in mean lesion area, cell death, succinate dehydrogenase activity, microglial activation, and protein expression of inflammatory factors including interleukin (IL)-1beta, IL-6, tumor necrosis factor-alpha, inducible nitric oxide synthase, and cyclooxygenase-2 in the striatum after 3-NPA treatment. Pretreatment with SSCE stimulated the nuclear factor erythroid 2-related factor 2 pathway and inhibited phosphorylation of the mitogen-activated protein kinase and nuclear factor-kappa B signaling pathways in the striatum after 3-NPA treatment. The gomisin A and schizandrin components of SSCE significantly reduced the neurological impairment and lethality induced by 3-NPA treatment. These results indicate for the first time that SSCE may effectively prevent 3-NPA-induced striatal toxicity during a wide therapeutic time window through anti-oxidative and anti-inflammatory activities. SSCE has potential value in preventive and therapeutic strategies for HD-like symptoms. PMID- 29033840 TI - Hydrogen Sulfide Inhibits Cigarette Smoke-Induced Endoplasmic Reticulum Stress and Apoptosis in Bronchial Epithelial Cells. AB - Background: Apoptosis of lung structural cells contributes to the process of lung damage and remodeling in chronic obstructive pulmonary disease (COPD). Our previous studies demonstrated that exogenous hydrogen sulfide (H2S) can reduce the lung tissue pathology score, anti-inflammation and anti-oxidation effects in COPD, but the effect of H2S in regulating cigarette smoke (CS) induced bronchial epithelial cell apoptosis and the underlying mechanisms are not clear. Objectives: To investigate the effect of H2S on CS induced endoplasmic reticulum stress (ERS) and bronchial epithelial cell apoptosis. Methods: Male Sprague Dawley rats randomly divided into four groups for treatment: control, CS, NaHS + CS, and propargylglycine (PPG) + CS. The rats in the CS group were exposed to CS generated from 20 commercial unfiltered cigarettes for 4 h/day, 7 days/week for 4 months. Since the beginning of the third month, freshly prepared NaHS (14 MUmol/kg) and PPG (37.5 mg/kg) were intraperitoneally administered 30 min before CS-exposure in the NaHS and PPG groups. 16HBE cells were pretreated with Taurine (10 mM), 5 mmol/L 4-phenylbutyric acid (4-PBA) or NaHS (100, 200, and 400 MUM) for 30 min, and then cells were exposed to 40 MUmol/L nicotine for 72 h. ERS markers (GRP94, GRP78) and ERS-mediated apoptosis markers 4-C/EBP homologous protein (CHOP), caspase-3 and caspase-12 were assessed in rat lung tissues and human bronchial epithelial cells. The apoptotic bronchial epithelial cells were detected by Hoechst staining in vitro and TUNEL staining in vivo. Results: In CS exposed rats, peritoneal injection of NaHS significantly inhibited CS induced overexpression ERS-mediated apoptosis markers and upregulation of apoptotic rate in rat lungs, and inhibiting the endogenous H2S production by peritoneal injection of PPG exacerbated these effects. In the nicotine-exposed bronchial epithelial cells, appropriate concentration of NaHS and ERS inhibitors taurine and 4-PBA inhibited nicotine-induced upregulation of apoptotic rate and overexpression of ERS-mediated apoptosis markers. Conclusion: H2S inhibited lung tissue damage by attenuating CS induced ERS in rat lung and exogenous H2S attenuated nicotine induced ERS-mediated apoptosis in bronchial epithelial cells. PMID- 29033841 TI - Pharmacodynamic Evaluation and PK/PD-Based Dose Prediction of Tulathromycin: A Potential New Indication for Streptococcus suis Infection. AB - Tulathromycin is the first member of the triamilide antimicrobial drugs that has been registered in more than 30 countries. The goal of this study is to provide a potential new indication of tulathromycin for Streptococcus suis infections. We investigated the pharmacokinetic and ex vivo pharmacodynamics of tulathromycin against experimental S. suis infection in piglets. Tulathromycin demonstrated a relatively long elimination half-life (74.1 h) and a mean residence time of 97.6 h after a single intramuscular administration. The minimal inhibitory concentration (MIC) and bactericidal concentration in serum were markedly lower than those in broth culture, with Mueller-Hinton broth/serum ratios of 40.3 and 11.4, respectively. The post-antibiotic effects were at 1.27 h (1* MIC) and 2.03 h (4* MIC) and the post-antibiotic sub-MIC effect values ranged from 2.47 to 3.10 h. The ratio of the area under the concentration-time curve divided by the MIC (AUC/MIC) correlated well with the ex vivo antimicrobial effectiveness of tulathromycin (R2 = 0.9711). The calculated AUC12h/MIC ratios in serum required to produce the net bacterial stasis, 1-log10 and 2-log10 killing activities were 9.62, 18.9, and 32.7, respectively. Based on the results of Monte Carlo simulation, a dosage regimen of 3.56 mg/kg tulathromycin was estimated to be effective, achieving for a bacteriostatic activity against S. suis infection over 5 days period. Tulathromycin may become a potential option for the treatment of S. suis infections. PMID- 29033843 TI - Commentary: The apolipoprotein A-I mimetic peptide, D-4F, restrains neointimal formation through heme oxygenase-1 up-regulation. PMID- 29033842 TI - Addressing the Challenges of Tuberculosis: A Brief Historical Account. AB - Tuberculosis (TB) is a highly contagious disease that still poses a threat to human health. Mycobacterium tuberculosis (MTB), the pathogen responsible for TB, uses diverse ways in order to survive in a variety of host lesions and to subsequently evade immune surveillance; as a result, fighting TB and its associated multidrug resistance has been an ongoing challenge. The aim of this review article is to summarize the historical sequence of drug development and use in the fight against TB, with a particular emphasis on the decades between World War II and the dawn of the twenty first century (2000). PMID- 29033845 TI - Commentary: Computerised interpretation of fetal heart rate during labour (INFANT): a randomised controlled trial. PMID- 29033844 TI - Syngeneic B16F10 Melanoma Causes Cachexia and Impaired Skeletal Muscle Strength and Locomotor Activity in Mice. AB - Muscle wasting has been emerging as one of the principal components of cancer cachexia, leading to progressive impairment of work capacity. Despite early stages melanomas rarely promotes weight loss, the appearance of metastatic and/or solid tumor melanoma can leads to cachexia development. Here, we investigated the B16F10 tumor-induced cachexia and its contribution to muscle strength and locomotor-like activity impairment. C57BL/6 mice were subcutaneously injected with 5 * 104 B16F10 melanoma cells or PBS as a Sham negative control. Tumor growth was monitored during a period of 28 days. Compared to Sham mice, tumor group depicts a loss of skeletal muscle, as well as significantly reduced muscle grip strength and epididymal fat mass. This data are in agreement with mild to severe catabolic host response promoted by elevated serum tumor necrosis factor alpha (TNF-alpha), interleukin-6 (IL-6) and lactate dehydrogenase (LDH) activity. Tumor implantation has also compromised general locomotor activity and decreased exploratory behavior. Likewise, muscle loss, and elevated inflammatory interleukin were associated to muscle strength loss and locomotor activity impairment. In conclusion, our data demonstrated that subcutaneous B16F10 melanoma tumor-driven catabolic state in response to a pro-inflammatory environment that is associated with impaired skeletal muscle strength and decreased locomotor activity in tumor-bearing mice. PMID- 29033846 TI - Epithelial Markers aSMA, Krt14, and Krt19 Unveil Elements of Murine Lacrimal Gland Morphogenesis and Maturation. AB - As an element of the lacrimal apparatus, the lacrimal gland (LG) produces the aqueous part of the tear film, which protects the eye surface. Therefore, a defective LG can lead to serious eyesight impairment. Up to now, little is known about LG morphogenesis and subsequent maturation. In this study, we delineated elements of the cellular and molecular events involved in LG formation by using three epithelial markers, namely aSMA, Krt14, and Krt19. While aSMA marked a restricted epithelial population of the terminal end buds (TEBs) in the forming LG, Krt14 was found in the whole embryonic LG epithelial basal cell layer. Interestingly, Krt19 specifically labeled the presumptive ductal domain and subsequently, the luminal cell layer. By combining these markers, the Fucci reporter mouse strain and genetic fate mapping of the Krt14+ population, we demonstrated that LG epithelium expansion is fuelled by a patterned cell proliferation, and to a lesser extent by epithelial reorganization and possible mesenchymal-to-epithelial transition. We pointed out that this epithelial reorganization, which is associated with apoptosis, regulated the lumen formation. Finally, we showed that the inhibition of Notch signaling prevented the ductal identity from setting, and led to a LG covered by ectopic TEBs. Taken together our results bring a deeper understanding on LG morphogenesis, epithelial domain identity, and organ expansion. PMID- 29033847 TI - A Monetary Reward Alters Pacing but Not Performance in Competitive Cyclists. AB - Money has frequently been used as an extrinsic motivator since it is assumed that humans are willing to invest more effort for financial reward. However, the influence of a monetary reward on pacing and performance in trained athletes is not well-understood. Therefore, the aim of this study was to analyse the influence of a monetary reward in well-trained cyclists on their pacing and performance during short and long cycling time trials (TT). Twentythree cyclists (6 ?, 17 ?) completed 4 self-paced time trials (TTs, 2 short: 4 km and 6 min; 2 long: 20 km and 30 min); in a randomized order. Participants were separated into parallel, non-randomized "rewarded" and "non-rewarded" groups. Cyclists in the rewarded group received a monetary reward based on highest mean power output across all TTs. Cyclists in the non-rewarded group did not receive a monetary reward. Overall performance was not significantly different between groups in short or long TTs (p > 0.48). Power output showed moderatly lower effect sizes at comencement of the short TTs (Pmeandiff = 36.6 W; d > 0.44) and the 20 km TT (Pmeandiff = 22.6 W; d = 0.44) in the rewarded group. No difference was observed in pacing during the 30 min TT (p = 0.95). An external reward seems to have influenced pacing at the commencement of time trials. Participants in the non rewarded group adopted a typical parabolic shaped pattern, whereas participants in the rewarded group started trials more conservatively. Results raise the possibility that using money as an extrinsic reward may interfere with regulatory processes required for effective pacing. PMID- 29033848 TI - Editorial: Physiology in Extreme Conditions: Adaptations and Unexpected Reactions. PMID- 29033849 TI - Study on the Effect of Wing Bud Chitin Metabolism and Its Developmental Network Genes in the Brown Planthopper, Nilaparvata lugens, by Knockdown of TRE Gene. AB - The brown planthopper, Nilaparvata lugens is one of the most serious pests of rice, and there is so far no effective way to manage this pest. However, RNA interference not only can be used to study gene function, but also provide potential opportunities for novel pest management. The development of wing plays a key role in insect physiological activities and mainly involves chitin. Hence, the regulating role of trehalase (TRE) genes on wing bud formation has been studied by RNAi. In this paper, the activity levels of TRE and the contents of the two sugars trehalose and glucose were negatively correlated indicating the potential role of TRE in the molting process. In addition, NlTRE1-1 and NlTRE2 were expressed at higher levels in wing bud tissue than in other tissues, and abnormal molting and wing deformity or curling were noted 48 h after the insect was injected with any double-stranded TRE (dsTRE), even though different TREs have compensatory functions. The expression levels of NlCHS1b, NlCht1, NlCht2, NlCht6, NlCht7, NlCht8, NlCht10, NlIDGF, and NlENGase decreased significantly 48 h after the insect was injected with a mixture of three kinds of dsTREs. Similarly, the TRE inhibitor validamycin can inhibit NlCHS1 and NlCht gene expression. However, the wing deformity was the result of the NlIDGF, NlENGase, NlAP, and NlTSH genes being inhibited when a single dsTRE was injected. These results demonstrate that silencing of TRE gene expression can lead to wing deformities due to the down-regulation of the AP and TSH genes involved in wing development and that the TRE inhibitor validamycin can co-regulate chitin metabolism and the expression of wing development-related genes in wing bud tissue. The results provide a new approach for the prevention and management of N. lugens. PMID- 29033851 TI - Effects of Alpha-Lactalbumin or Whey Protein Isolate on Muscle Damage, Muscle Pain, and Mood States Following Prolonged Strenuous Endurance Exercise. AB - This study compared the effect of alpha-lactalbumin and whey protein on muscle damage, muscle pain, and mood states during short term recovery following strenuous prolonged exercise. In a two-stage crossover counterbalanced design, 12 endurance male runners were recruited (age: 30.4 +/- 2.8 year, height: 172.7 +/- 5.6 cm, body mass: 66.7 +/- 6.5 kg, VO2max: 58.0 +/- 6.9 ml/kg-/min), ran for 90 min at 70% VO2max, and followed by a 4-h recovery. Two treatments (carbohydrate+alpha-lactalbumin, CA; carbohydrate+whey protein isolate, CW) were applied during the main trials. During the first 2-h of recovery, CHO was served at the rate of 0.66 g/kg/h and PRO at 0.34 g/kg/h every 30 min. Creatine kinase (CK), interleukin-6 (IL-6), salivary cortisol, rating of muscle pain, pressure pain threshold (PPT), and mood states were evaluated before (Pre-ex), immediately (Post-ex0), 2 h (Post-ex2h) and 4 h (Post-ex4h) after exercise. 24 h after exercise (Post-ex24h), CK and IL-6, muscle pain, and PPT were evaluated. Compared with Pre-ex, Post-ex24h CK was higher in both trials of CA (398.16 +/- 41.37 vs. 184.77 +/- 22.68 IU/L, P = 0.039) and CW (418.17 +/- 67.86 vs. 202.41 +/- 22.26 IU/L, P = 0.037). IL-6 was also higher than Pre-ex at Post-ex0 and Post-ex2h in trials of CA (Post-ex0 vs. Pre-ex0: 7.87 +/- 0.74 vs. 1.69 +/- 0.23, P < 0.01; Post-ex2h vs. Pre-ex0: 5.39 +/- 0.88 vs. 1.69 +/- 0.23, P = 0.02) and CW (Post ex0 vs. Pre-ex0: 8.63 +/- 1.06 vs. 1.59 +/- 0.19, P < 0.01; Post-ex2h vs. Pre ex0: 5.75 +/- 1.33 vs. 1.59 +/- 0.19, P < 0.01). No difference was found in CK and IL-6 between two trials at all time points (all P > 0.05). Compared with Pre ex0, salivary cortisol was elevated at Post-ex0 in both trials (CA: 0.96 +/- 0.13 vs. 0.41 +/- 0.05 ng/ml, P < 0.01; CW: 1.15 +/- 0.18 vs. 0.43 +/- 0.06 ng/ml, P < 0.01) and was lower at Post-ex24h than Pre-ex in CA trial (0.17 +/- 0.02 vs. 0.41 +/- 0.05 ng/ml, P < 0.01). Compared with CW, PPT was higher at Post-2h in CA trial (31.55 +/- 3.09 vs. 26.99 +/- 2.32 N/cm2, P < 0.01). Compared with Post ex0, feeling of fatigue was lower at Post-ex2h (P = 0.014) and Post-ex4h (P < 0.01) in CA, while it was lower at Post-ex4h (P = 0.038) in CW. Compared with CW, feeling of fatigue was marginally lower in the CA trial at Post-ex2h (P = 0.056). In conclusion, compared with the co-ingestion of CHO and whey PRO isolate, co ingestion of CHO and alpha-lactalbumin reduced sensitivity to the muscle pain, attenuated feeling of fatigue and was more beneficial to reduce the feeling of fatigue and cortisol responses during 4-h recovery following 90-min running at 70% VO2max. PMID- 29033850 TI - Designing Dietary Recommendations Using System Level Interactomics Analysis and Network-Based Inference. AB - Background: A range of computational methods that rely on the analysis of genome wide expression datasets have been developed and successfully used for drug repositioning. The success of these methods is based on the hypothesis that introducing a factor (in this case, a drug molecule) that could reverse the disease gene expression signature will lead to a therapeutic effect. However, it has also been shown that globally reversing the disease expression signature is not a prerequisite for drug activity. On the other hand, the basic idea of significant anti-correlation in expression profiles could have great value for establishing diet-disease associations and could provide new insights into the role of dietary interventions in disease. Methods: We performed an integrated analysis of publicly available gene expression profiles for foods, diseases and drugs, by calculating pairwise similarity scores for diet and disease gene expression signatures and characterizing their topological features in protein protein interaction networks. Results: We identified 485 diet-disease pairs where diet could positively influence disease development and 472 pairs where specific diets should be avoided in a disease state. Multiple evidence suggests that orange, whey and coconut fat could be beneficial for psoriasis, lung adenocarcinoma and macular degeneration, respectively. On the other hand, fructose-rich diet should be restricted in patients with chronic intermittent hypoxia and ovarian cancer. Since humans normally do not consume foods in isolation, we also applied different algorithms to predict synergism; as a result, 58 food pairs were predicted. Interestingly, the diets identified as anti correlated with diseases showed a topological proximity to the disease proteins similar to that of the corresponding drugs. Conclusions: In conclusion, we provide a computational framework for establishing diet-disease associations and additional information on the role of diet in disease development. Due to the complexity of analyzing the food composition and eating patterns of individuals our in silico analysis, using large-scale gene expression datasets and network based topological features, may serve as a proof-of-concept in nutritional systems biology for identifying diet-disease relationships and subsequently designing dietary recommendations. PMID- 29033852 TI - Activation of Casein Kinase II by Gallic Acid Induces BIK-BAX/BAK-Mediated ER Ca++-ROS-Dependent Apoptosis of Human Oral Cancer Cells. AB - Induction of the generation of endoplasmic reticulum (ER) calcium (Ca++)-mediated reactive oxygen species (ROS) by gallic acid (GA) has been implicated in the mitochondrial apoptotic death of human oral cancer (OC) cells, but the molecular mechanism by which GA causes ER Ca++ release of OC cells to undergo cell death remains unclear. Here, we report that GA-induced phosphorylation of B-cell lymphoma 2 (BCL-2)-interacting killer (BIK) (threonine (Thr) 33/Serine (Ser) 35) and p53 (Ser 15 and Ser 392), Bcl-2-associated x protein (BAX)/BCL-2 antagonist killer 1 (BAK) oligomerization on the ER and mitochondria, rising of cytosolic Ca++ and ROS, cytochrome c (Cyt c) release from the mitochondria, Psim loss, and apoptosis were suppressed in cells co-treated with a specific inhibitor of casein kinase II (CK II) (4,5,6,7-tetrabromobenzotriazole). Small interfering RNA (siRNA)-mediated suppression of BIK inhibited GA-induced oligomeric complex of BAX/BAK in the ER and mitochondria, increase of cytosolic Ca++ and ROS, and apoptosis, but did not attenuate the increase in the level of Ser 15-phosphated p53 induced by GA. Blockade of p53 expression by short hairpin RNA suppressed BAX/BAK oligomerization and ER Ca++-ROS-associated apoptosis induced by GA but did not affect GA-induced phospho-BIK (Thr 33/Ser 35) levels. Induction of mitochondrial Cyt c release and ROS generation, increased cytosolic Ca++ level, and apoptosis by GA was attenuated by expression of the BAX or BAK siRNA. Over expression of BCL-2 (but not BCL-XL) inhibited formation of ER oligomeric BAX/BAK by GA. Our results demonstrated that activation of the CK II by GA is required for the BIK-mediated ROS-dependent apoptotic activity of ER-associated BAX/BAK. PMID- 29033853 TI - Proinflammatory Effect of High Glucose Concentrations on HMrSV5 Cells via the Autocrine Effect of HMGB1. AB - Background: Peritoneal fibrosis, in which inflammation and apoptosis play crucial pathogenic roles, is a severe complication associated with the treatment of kidney failure with peritoneal dialysis (PD) using a glucose-based dialysate. Mesothelial cells (MCs) take part in the inflammatory processes by producing various cytokines and chemokines, such as monocyte chemoattractant protein 1 (MCP 1) and interleukin 8 (IL-8). The apoptosis of MCs induced by high glucose levels also contributes to complications of PD. High mobility group protein B1 (HMGB1) is an inflammatory factor that has repeatedly been proven to be related to the occurrence of peritoneal dysfunction. Aim: In this study, we aimed to explore the effect and underlying mechanism of endogenous HMGB1 in high-glucose-induced MC injury. Methods: The human peritoneal MC line, HMrSV5 was cultured in high glucose medium and incubated with recombinant HMGB1. Cellular expression of HMGB1 was blocked using HMGB1 small interfering RNA (siRNA). Apoptosis and production of inflammatory factors as well as the potential intermediary signaling pathways were examined. Results: The major findings of these analyses were: (1) MCs secreted HMGB1 from the nucleus during exposure to high glucose levels; HMGB1 acted in an autocrine fashion on the MCs to promote the production of MCP-1 and IL-8; (2) HMGB1 had little effect on high-glucose-induced apoptosis of the MCs; and (3) HMGB1-mediated MCP-1 and IL-8 production depended on the activation of MAPK signaling pathways. In conclusion, endogenous HMGB1 plays an important role in the inflammatory reaction induced by high glucose on MCs via mitogen-activated protein kinase (MAPK) signaling pathways, but it seems to have little effect on high-glucose-induced apoptosis. PMID- 29033854 TI - High-Temperature Tolerance of Photosynthesis Can Be Linked to Local Electrical Responses in Leaves of Pea. AB - It is known that numerous stimuli induce electrical signals which can increase a plant's tolerance to stressors, including high temperature. However, the physiological role of local electrical responses (LERs), i.e., responses in the zone of stimulus action, in the plant's tolerance has not been sufficiently investigated. The aim of a current work is to analyze the connection between parameters of LERs with the thermal tolerance of photosynthetic processes in pea. Electrical activity and photosynthetic parameters in pea leaves were registered during transitions of air temperature in a measurement head (from 23 to 30 degrees C, from 30 to 40 degrees C, from 40 to 45 degrees C, and from 45 to 23 degrees C). This stepped heating decreased a photosynthetic assimilation of CO2 and induced generation of LERs in the heated leaf. Amplitudes of LERs, quantity of responses during the heating and the number of temperature transition, which induced the first generation of LERs, varied among different pea plants. Parameters of LERs were weakly connected with the photosynthetic assimilation of CO2 during the heating; however, a residual photosynthetic activity after a treatment by high temperatures increased with the growth of amplitudes and quantity of LERs and with lowering of the number of the heating transition, inducing the first electrical response. The effect was not connected with a photosynthetic activity before heating; similar dependences were also observed for effective and maximal quantum yields of photosystem II after heating. We believe that the observed effect can reflect a positive influence of LERs on the thermal tolerance of photosynthesis. It is possible that the process can participate in a plant's adaptation to stressors. PMID- 29033855 TI - Implicit Recognition of Familiar and Unfamiliar Faces in Schizophrenia: A Study of the Skin Conductance Response in Familiarity Disorders. AB - OBJECTIVE: Familiarity is a subjective sensation that contributes to person recognition. This process is described as an emotion-based memory-trace of previous meetings and could be disrupted in schizophrenia. Consequently, familiarity disorders could be involved in the impaired social interactions observed in patients with schizophrenia. Previous studies have primarily focused on famous people recognition. Our aim was to identify underlying features, such as emotional disturbances, that may contribute to familiarity disorders in schizophrenia. We hypothesize that patients with familiarity disorders will exhibit a lack of familiarity that could be detected by a flattened skin conductance response (SCR). METHOD: The SCR was recorded to test the hypothesis that emotional reactivity disturbances occur in patients with schizophrenia during the categorization of specific familiar, famous and unknown faces as male or female. Forty-eight subjects were divided into the following 3 matched groups with 16 subjects per group: control subjects, schizophrenic people with familiarity disorder, and schizophrenic people without familiarity disorders. RESULTS: Emotional arousal is reflected by the skin conductance measures. The control subjects and the patients without familiarity disorders experienced a differential emotional response to the specific familiar faces compared with that to the unknown faces. Nevertheless, overall, the schizophrenic patients without familiarity disorders showed a weaker response across conditions compared with the control subjects. In contrast, the patients with familiarity disorders did not show any significant differences in their emotional response to the faces, regardless of the condition. CONCLUSION: Only patients with familiarity disorders fail to exhibit a difference in emotional response between familiar and non familiar faces. These patients likely emotionally process familiar faces similarly to unknown faces. Hence, the lower feelings of familiarity in schizophrenia may be a premise enabling the emergence of familiarity disorders. PMID- 29033856 TI - Possible Facilitative Effects of Repeated Anodal Transcranial Direct Current Stimulation on Functional Outcome 1 Month Later in Schizophrenia: An Open Trial. AB - : Recent research on neuromodulation techniques, such as transcranial direct current stimulation (tDCS), for the treatment of schizophrenia has mainly focused on psychotic symptoms. We aimed to determine whether repetitive tDCS is efficacious in improving determinants of outcome, such as cognitive function, daily living skills, and depressive mood in patients with schizophrenia. Twenty eight patients underwent tDCS (2 mA * 20 min) two times per day for 5 consecutive days. The anodal electrode was placed over the left dorsolateral prefrontal cortex while the cathodal electrode was placed over the right supraorbital region. One month after the last stimulation, there was a significant improvement on cognitive function, measured by the brief assessment of cognition in schizophrenia (d = 0.49). Significant effects were also shown on daily living skills (functional capacity), measured by the UCSD performance-based skills assessment-brief (d = 0.70). Depressive symptoms, measured by the Calgary depression rating scale, as well as psychotic symptoms measured by on the positive and negative syndrome scale positive and general psychopathology subscales also responded to the treatment (d = 0.38, d = 0.48, and d = 0.50, respectively). This is the first study to suggest that tDCS with the anodal electrode on the left prefrontal cortex improves functional capacity and depressive symptoms in patients with schizophrenia. These results may add to the concept that tDCS provides a strategy to enhance functional outcomes in patients with schizophrenia. TRIAL REGISTRATION: https://upload.umin.ac.jp/cgi-open bin/ctr/ctr_view.cgi?recptno=R000018556, UMIN000015953. PMID- 29033857 TI - An Update Overview on Brain Imaging Studies of Internet Gaming Disorder. AB - There are a growing number of studies on structural and functional brain mechanisms underlying Internet gaming disorder (IGD). Recent functional magnetic resonance imaging studies showed that IGD adolescents and adults had reduced gray matter volume in regions associated with attention motor coordination executive function and perception. Adolescents with IGD showed lower white matter (WM) integrity measures in several brain regions that are involved in decision-making, behavioral inhibition, and emotional regulation. IGD adolescents had also disruption in the functional connectivity in areas responsible for learning memory and executive function, processing of auditory, visual, and somatosensory stimuli and relay of sensory and motor signals. IGD adolescents also had decreased functional connectivity of PFC-striatal circuits, increased risk-taking choices, and impaired ability to control their impulses similar to other impulse control disorders. Recent studies indicated that altered executive control mechanisms in attention deficit hyperactivity disorder (ADHD) would be a predisposition for developing IGD. Finally, patients with IGD have also shown an increased functional connectivity of several executive control brain regions that may related to comorbidity with ADHD and depression. The behavioral addiction model argues that IGD shows the features of excessive use despite adverse consequences, withdrawal phenomena, and tolerance that characterize substance use disorders. The evidence supports the behavioral addiction model of IGD by showing structural and functional changes in the mechanisms of reward and craving (but not withdrawal) in IGD. Future studies need to investigate WM density and functional connectivity in IGD in order to validate these findings. Furthermore, more research is required about the similarity in neurochemical and neurocognitive brain circuits in IGD and comorbid conditions such as ADHD and depression. PMID- 29033858 TI - HoNOSCA-D As a Measure of the Severity of Diagnosed Mental Disorders in Children and Adolescents-Psychometric Properties of the German Translation. AB - The Health of the Nation Outcome Scales for Children and Adolescents (HoNOSCA), in use worldwide, is a 13-item measure assessing the biopsychosocial severity of mental health problems in children and adolescents. This article introduces the authorized German-language version of HoNOSCA, the HoNOSCA-D, and examines and discusses its psychometric properties based on a clinical sample of 1,533 children and adolescents aged 4;0 to 17;11 years. For the HoNOSCA-D total score (severity of mental health problems), internal consistency (Cronbach's alpha) was 0.63. The discriminative power of the items ranged from 0.07 to 0.44; the average interitem correlation was 0.11. Due to this stochastic independence, calculation of a total severity index is acceptable. Using factor analysis, the principal axis factoring and varimax rotation resulted in a four-factor structure, which with a Kaiser-Meyer-Olkin measure of sampling adequacy of 0.684 explained 30.62% of total variance. The convergent correlations with the German-language parent report version of the Strengths and Difficulties Questionnaire were as expected and showed a medium effect size. Gender and age differences in the HoNOSCA-D total score were small. Regarding the 13 items gender and age differences were negligible to medium. The highest severity was found for schizophrenia and psychotic disorders, followed by affective disorders and social behavior disorders. Overall, validity of HoNOSCA-D was clearly supported. PMID- 29033859 TI - Multi-Watt Near-Infrared Phototherapy for the Treatment of Comorbid Depression: An Open-Label Single-Arm Study. AB - BACKGROUND: The treatment of depression has been hampered by low efficacy of antidepressant medications and safety concerns with alternative modalities. Recent work demonstrated that multi-Watt transcranial near-infrared light therapy (NILT) can effectively treat traumatic brain injury (TBI). The current objective is to explore multi-Watt NILT efficacy in a proof-of-concept study as a treatment for depression. METHODS: Thirty-nine sequential patients treated for TBI between March 2013 and May 2017 provided depression self-assessment data and/or were administered the Hamilton depression rating scale. Each completed the Quick Inventory of Depression Symptomatology-Self Report (QIDS) before and after treatment. Patients received multi-Watt NILT using near-infrared lasers (810/980 nm at 8-15 W) applied to forehead and temporal regions bilaterally for 9-12 min to each area. Pre- and posttreatment scores were analyzed by paired t-tests. RESULTS: All met QIDS criteria for mild to severe depression and 69% had prior antidepressant trials. For 36 of the 39 patients, after 16.82 +/- 6.26 treatments, QIDS scores indicated a robust response (decrease of QIDS total score by >=50%). For 32 of 39 patients, posttreatment QIDS scores indicated a remission from depression (decrease of QIDS total score <=5). Overall, the QIDS score fell from 14.10 +/- 3.39 to 3.41 +/- 3.30 SD (p = 6.29 * 10-19). With 12 or fewer treatments, QIDS score dropped from 14.83 +/- 2.55 to 4.17 +/- 3.93. Patients receiving >=13 treatments showed a change in QIDS score from 13.67 +/- 3.64 to 3.11 +/- 3.14. Those (N = 15) who received the entire treatment course within <=8 weeks (5.33 +/- 1.72 weeks) showed a change in QIDS score from 13.86 +/- 3.14 to 4.5 +/- 3.94. Suicidal ideation resolved in all, but two patients. Patients remained in remission for up to 55 months after a single course of treatment. CONCLUSION: This is the first report of high-powered NILT showing efficacy for depression. Multi-Watt NILT showed far greater efficacy and persistent benefit compared to low-power (<1 Watt) infrared light treatments. Patients saw benefit often within four treatments and resolution of depressive symptoms occurred within 4 weeks for some. These data raise an intriguing possibility-that multi Watt NILT may be a safe, effective, and rapid treatment for depression comorbid with TBI and possibly primary major depression disorder. A double-blind, placebo controlled trial is warranted to verify these proof-of-concept data. PMID- 29033860 TI - Olfactory Functioning and Depression: A Systematic Review. AB - BACKGROUND: Research has demonstrated a reduction in olfactory functioning in patients with schizophrenia. This research has led to examination of olfactory functioning in other mental disorders, such as depression. There is a great deal of variation in the results generated from such research, and it remains unclear as to how olfactory functioning is associated with or impacted by depression. METHOD: The current review examined the literature in accordance with PRISMA guidelines in order to generate a better understanding of this relationship and to identify if and what aspects of olfactory processing are altered. Through examination of the available literature from the databases PubMed, Ovid Medline, CINAL, and PsychINFO, 15 manuscripts were selected to determine if there was a difference in olfactory processing-specifically central and peripheral processing between depressed individuals and non-depressed controls. RESULTS: The comparison of the 15 studies showed that the majority of studies (9/15, 60%) found a difference in overall olfactory functioning between depressed individuals and non depressed controls (p < 0.05). LIMITATIONS: There is still a lack of definitive conclusions due to variation of which olfactory process was altered. CONCLUSION: Given the differences in the methodology and design of these studies, a possible solution that could eliminate the lack of clarity and reduce variation would be to adhere to a single, thorough methodology that examines and separates central and peripheral olfactory processing. Future research employing a uniform and validated methodology could provide more definitive conclusions as to how and if olfactory functioning is related depression. PMID- 29033862 TI - The Impact of Bodily States on Divergent Thinking: Evidence for a Control Depletion Account. AB - Given previous evidence that bodily states can impact basic cognitive processes, we asked whether such impact can also be demonstrated for creative cognition. In particular, we had participants perform a design improvement task and a consequences imagination task while standing up, walking in a predetermined pattern, or walking freely. Results show better divergent-thinking performance with unconstrained than with constrained walking, and better performance for walking than for standing. A second experiment assessed performance in an alternative uses task and a figural combination task while participants were lying, sitting, or standing. Results showed better performance when standing up than when lying or sitting. Taken altogether, these observations provide evidence for an approach in terms of cognitive-control depletion: the more a bodily activity exhausts control resources, the better divergent thinking can unfold, presumably because reduced top-down control brings more ideas into play. PMID- 29033863 TI - The Peaceful Co-existence of Input Frequency and Structural Intervention Effects on the Comprehension of Complex Sentences in German-Speaking Children. AB - The predictions of two contrasting approaches to the acquisition of transitive relative clauses were tested within the same groups of German-speaking participants aged from 3 to 5 years old. The input frequency approach predicts that object relative clauses with inanimate heads (e.g., the pullover that the man is scratching) are comprehended earlier and more accurately than those with an animate head (e.g., the man that the boy is scratching). In contrast, the structural intervention approach predicts that object relative clauses with two full NP arguments mismatching in number (e.g., the man that the boys are scratching) are comprehended earlier and more accurately than those with number matching NPs (e.g., the man that the boy is scratching). These approaches were tested in two steps. First, we ran a corpus analysis to ensure that object relative clauses with number-mismatching NPs are not more frequent than object relative clauses with number-matching NPs in child directed speech. Next, the comprehension of these structures was tested experimentally in 3-, 4-, and 5-year olds respectively by means of a color naming task. By comparing the predictions of the two approaches within the same participant groups, we were able to uncover that the effects predicted by the input frequency and by the structural intervention approaches co-exist and that they both influence the performance of children on transitive relative clauses, but in a manner that is modulated by age. These results reveal a sensitivity to animacy mismatch already being demonstrated by 3-year-olds and show that animacy is initially deployed more reliably than number to interpret relative clauses correctly. In all age groups, the animacy mismatch appears to explain the performance of children, thus, showing that the comprehension of frequent object relative clauses is enhanced compared to the other conditions. Starting with 4-year-olds but especially in 5 year-olds, the number mismatch supported comprehension-a facilitation that is unlikely to be driven by input frequency. Once children fine-tune their sensitivity to verb agreement information around the age of four, they are also able to deploy number marking to overcome the intervention effects. This study highlights the importance of testing experimentally contrasting theoretical approaches in order to characterize the multifaceted, developmental nature of language acquisition. PMID- 29033861 TI - Neuropsychological Impairment in Detoxified Alcohol-Dependent Subjects with Preserved Psychosocial Functioning. AB - BACKGROUND: Chronic alcoholism and its related cognitive impairments are associated with increased social, relational, and professional deficits which have a variable overall impact on social integration. These impairments are known to have varying severities and have rarely been studied among healthy alcohol dependent subjects with preserved psychosocial functioning. Thus, the objective of this study is to describe neuropsychological performance in this particular population. METHOD: Twenty-nine socially adjusted alcohol-dependent men, hospitalized for a first or second withdrawal and abstinent for 3 weeks minimum, were compared to 29 healthy non-alcoholic controls. All subjects underwent clinical and psychiatric examination, neuropsychological tests of memory (M), working memory (WM), and executive functions (EF). Comparisons were performed using Student's t-tests or Mann-Whitney U tests. RESULTS: No group differences were found on the Self-Reported Social Adjustment Scale (SAS-SR) or in the Mini Mental State Examination. Compared to controls, patients had greater episodic, spatial, and WM deficits as well as slightly altered executive functions. In contrast, their executive functions (spontaneous flexibility, criteria generation, rule maintenance, and inhibitory control) were relatively preserved. CONCLUSION: Our sample of socially and professionally integrated alcoholic patients shows fewer cognitive deficits than described in previous studies. Our results suggest that early on, alcohol-dependent subjects develop compensatory adaptation processes to preserve social function and adaptation. Minor cognitive impairments should be screened early in the disease to integrate cognitive interventions into the health-care plan to thus eventually prevent further socio professional marginalization. PMID- 29033864 TI - Novel Measures to Assess the Effects of Partial Sleep Deprivation on Sensory, Working, and Permanent Memory. AB - Sleepiness has repeatedly been demonstrated to affect performance on a variety of cognitive tasks. While the effects of total sleep deprivation (TSD) have been extensively studied, acute partial sleep deprivation (PSD), a more frequent form of sleep loss, has been studied much less often. The present study examined the effects of sleep deprivation on novel tasks involving classic sensory, working, and permanent memory systems. While the tasks did implicate different memory systems, they shared a need for effortful, sustained attention to maintain successful performance. Because of the novelty of the tasks, an initial study of the effects of TSD was carried out. The effects of PSD were subsequently examined in a second study, in which subjects were permitted only 4 h of sleep. A general detrimental effect of both total and PSD on accuracy of detection was observed and to a lesser extent, a slowing of the speed of responding on the different tasks. This overall effect is best explained by the often-reported inability to sustain attention following sleep loss. Specific effects on distinct cognitive processes were also observed, and these were more apparent following total than PSD. PMID- 29033865 TI - The Holistic Processing Account of Visual Expertise in Medical Image Perception: A Review. AB - In the field of medical image perception, the holistic processing perspective contends that experts can rapidly extract global information about the image, which can be used to guide their subsequent search of the image (Swensson, 1980; Nodine and Kundel, 1987; Kundel et al., 2007). In this review, we discuss the empirical evidence supporting three different predictions that can be derived from the holistic processing perspective: Expertise in medical image perception is domain-specific, experts use parafoveal and/or peripheral vision to process large regions of the image in parallel, and experts benefit from a rapid initial glimpse of an image. In addition, we discuss a pivotal recent study (Litchfield and Donovan, 2016) that seems to contradict the assumption that experts benefit from a rapid initial glimpse of the image. To reconcile this finding with the existing literature, we suggest that global processing may serve multiple functions that extend beyond the initial glimpse of the image. Finally, we discuss future research directions, and we highlight the connections between the holistic processing account and similar theoretical perspectives and findings from other domains of visual expertise. PMID- 29033867 TI - Sweeping the Floor or Putting a Man on the Moon: How to Define and Measure Meaningful Work. AB - Meaningful work is integral to well-being and a flourishing life. The construct of "meaningful work" is, however, consistently affected by conceptual ambiguity. Although there is substantial support for arguments to maintain the status of conceptual ambiguity, we make a case for the benefits of having consensus on a definition and scale of meaningful work in the context of paid work. The objective of this article, therefore, was twofold. Firstly, we wanted to develop a more integrative definition of meaningful work. Secondly, we wanted to establish a corresponding operationalization. We reviewed the literature on the existing definitions of meaningful work and the scales designed to measure it. We found 14 definitions of meaningful work. Based on these definitions, we identified four categories of definitions, which led us to propose an integrative and comprehensive definition of meaningful work. We identified two validated scales that were partly aligned with the proposed definition. Based on our review, we conclude that scholars in this field should coalesce rather than diverge their efforts to conceptualize and measure meaningful work. PMID- 29033866 TI - Neural Substrate of Group Mental Health: Insights from Multi-Brain Reference Frame in Functional Neuroimaging. AB - Contemporary mental health practice primarily centers around the neurobiological and psychological processes at the individual level. However, a more careful consideration of interpersonal and other group-level attributes (e.g., interpersonal relationship, mutual trust/hostility, interdependence, and cooperation) and a better grasp of their pathology can add a crucial dimension to our understanding of mental health problems. A few recent studies have delved into the interpersonal behavioral processes in the context of different psychiatric abnormalities. Neuroimaging can supplement these approaches by providing insight into the neurobiology of interpersonal functioning. Keeping this view in mind, we discuss a recently developed approach in functional neuroimaging that calls for a shift from a focus on neural information contained within brain space to a multi-brain framework exploring degree of similarity/dissimilarity of neural signals between multiple interacting brains. We hypothesize novel applications of quantitative neuroimaging markers like inter subject correlation that might be able to evaluate the role of interpersonal attributes affecting an individual or a group. Empirical evidences of the usage of these markers in understanding the neurobiology of social interactions are provided to argue for their application in future mental health research. PMID- 29033869 TI - Bilinguals' Plausibility Judgments for Phrases with a Literal vs. Non-literal Meaning: The Influence of Language Brokering Experience. AB - Previous work has shown that prior experience in language brokering (informal translation) may facilitate the processing of meaning within and across language boundaries. The present investigation examined the influence of brokering on bilinguals' processing of two word collocations with either a literal or a figurative meaning in each language. Proficient Spanish-English bilinguals classified as brokers or non-brokers were asked to judge if adjective+noun phrases presented in each language made sense or not. Phrases with a literal meaning (e.g., stinging insect) were interspersed with phrases with a figurative meaning (e.g., stinging insult) and non-sensical phrases (e.g., stinging picnic). It was hypothesized that plausibility judgments would be facilitated for literal relative to figurative meanings in each language but that experience in language brokering would be associated with a more equivalent pattern of responding across languages. These predictions were confirmed. The findings add to the body of empirical work on individual differences in language processing in bilinguals associated with prior language brokering experience. PMID- 29033870 TI - Motivational Objects in Natural Scenes (MONS): A Database of >800 Objects. AB - In daily life, we are surrounded by objects with pre-existing motivational associations. However, these are rarely controlled for in experiments with natural stimuli. Research on natural stimuli would therefore benefit from stimuli with well-defined motivational properties; in turn, such stimuli also open new paths in research on motivation. Here we introduce a database of Motivational Objects in Natural Scenes (MONS). The database consists of 107 scenes. Each scene contains 2 to 7 objects placed at approximately equal distance from the scene center. Each scene was photographed creating 3 versions, with one object ("critical object") being replaced to vary the overall motivational value of the scene (appetitive, aversive, and neutral), while maintaining high visual similarity between the three versions. Ratings on motivation, valence, arousal and recognizability were obtained using internet-based questionnaires. Since the main objective was to provide stimuli of well-defined motivational value, three motivation scales were used: (1) Desire to own the object; (2) Approach/Avoid; (3) Desire to interact with the object. Three sets of ratings were obtained in independent sets of observers: for all 805 objects presented on a neutral background, for 321 critical objects presented in their scene context, and for the entire scenes. On the basis of the motivational ratings, objects were subdivided into aversive, neutral, and appetitive categories. The MONS database will provide a standardized basis for future studies on motivational value under realistic conditions. PMID- 29033871 TI - Sense of Place, Fast and Slow: The Potential Contributions of Affordance Theory to Sense of Place. AB - Over the past 40 years, the sense of place concept has been well-established across a range of applications and settings; however, most theoretical developments have "privileged the slow." Evidence suggests that place attachments and place meanings are slow to evolve, sometimes not matching material or social reality (lag effects), and also tending to inhibit change. Here, we present some key blind spots in sense of place scholarship and then suggest how a reconsideration of sense of place as "fast" and "slow" could fill them. By this, we mean how direct and immediate perception-action processes presented in affordance theory (resulting in immediately perceived place meanings) can complement slower forms of social construction presented in sense of place scholarship. Key blind spots are that sense of place scholarship: (1) rarely accounts for sensory or immediately perceived meanings; (2) pays little attention to how place meanings are the joint product of attributes of environmental features and the attributes of the individual; and (3) assumes that the relationship between place attachment and behavior is linear and not constituted in dynamic relations among mind, culture, and environment. We show how these blind spots can begin to be addressed by reviewing key insights from affordance theory, and through the presentation of applied examples. We discuss future empirical research directions in terms of: (1) how sense of place is both perceived and socially constructed; (2) whether perceived and socially constructed dimensions of place can relate to one another when perceived meanings become unsituated; and (3) how place attachment may change over different stages of the life course based upon dynamic relationships between processes of perception-action and social construction. We conclude with insights into how processes of perception-action and social construction could be included in the design and management of urban landscapes. PMID- 29033868 TI - Is Schizophrenia a Disorder of Consciousness? Experimental and Phenomenological Support for Anomalous Unconscious Processing. AB - Decades ago, several authors have proposed that disorders in automatic processing lead to intrusive symptoms or abnormal contents in the consciousness of people with schizophrenia. However, since then, studies have mainly highlighted difficulties in patients' conscious experiencing and processing but rarely explored how unconscious and conscious mechanisms may interact in producing this experience. We report three lines of research, focusing on the processing of spatial frequencies, unpleasant information, and time-event structure that suggest that impairments occur at both the unconscious and conscious level. We argue that focusing on unconscious, physiological and automatic processing of information in patients, while contrasting that processing with conscious processing, is a first required step before understanding how distortions or other impairments emerge at the conscious level. We then indicate that the phenomenological tradition of psychiatry supports a similar claim and provides a theoretical framework helping to understand the relationship between the impairments and clinical symptoms. We base our argument on the presence of disorders in the minimal self in patients with schizophrenia. The minimal self is tacit and non-verbal and refers to the sense of bodily presence. We argue this sense is shaped by unconscious processes, whose alteration may thus affect the feeling of being a unique individual. This justifies a focus on unconscious mechanisms and a distinction from those associated with consciousness. PMID- 29033872 TI - Theory of Self- vs. Externally-Regulated LearningTM: Fundamentals, Evidence, and Applicability. AB - The Theory of Self- vs. Externally-Regulated LearningTM has integrated the variables of SRL theory, the DEDEPRO model, and the 3P model. This new Theory has proposed: (a) in general, the importance of the cyclical model of individual self regulation (SR) and of external regulation stemming from the context (ER), as two different and complementary variables, both in combination and in interaction; (b) specifically, in the teaching-learning context, the relevance of different types of combinations between levels of self-regulation (SR) and of external regulation (ER) in the prediction of self-regulated learning (SRL), and of cognitive-emotional achievement. This review analyzes the assumptions, conceptual elements, empirical evidence, benefits and limitations of SRL vs. ERL Theory. Finally, professional fields of application and future lines of research are suggested. PMID- 29033873 TI - A Three-Dimensional Model of Women's Empowerment: Implications in the Field of Microfinance and Future Directions. AB - Women's empowerment is an important goal in achieving sustainable development worldwide. Offering access to microfinance services to women is one way to increase women's empowerment. However, empirical evidence provides mixed results with respect to its effectiveness. We reviewed previous research on the impact of microfinance services on different aspects of women's empowerment. We propose a Three-Dimensional Model of Women's Empowerment to integrate previous findings and to gain a deeper understanding of women's empowerment in the field of microfinance services. This model proposes that women's empowerment can take place on three distinct dimensions: (1) the micro-level, referring to an individuals' personal beliefs as well as actions, where personal empowerment can be observed (2) the meso-level, referring to beliefs as well as actions in relation to relevant others, where relational empowerment can be observed and (3) the macro-level, referring to outcomes in the broader, societal context where societal empowerment can be observed. Importantly, we propose that time and culture are important factors that influence women's empowerment. We suggest that the time lag between an intervention and its evaluation may influence when empowerment effects on the different dimensions occur and that the type of intervention influences the sequence in which the three dimensions can be observed. We suggest that cultures may differ with respect to which components of empowerment are considered indicators of empowerment and how women's position in society may influence the development of women's empowerment. We propose that a Three-Dimensional Model of Women's Empowerment should guide future programs in designing, implementing, and evaluating their interventions. As such our analysis offers two main practical implications. First, based on the model we suggest that future research should differentiate between the three dimensions of women's empowerment to increase our understanding of women's empowerment and to facilitate comparisons of results across studies and cultures. Second, we suggest that program designers should specify how an intervention should stimulate which dimension(s) of women's empowerment. We hope that this model inspires longitudinal and cross-cultural research to examine the development of women's empowerment on the personal, relational, and societal dimension. PMID- 29033875 TI - "I WILL SURVIVE" A Construct Validation Study on the Measurement of Sustainable Employability Using Different Age Conceptualizations. AB - Though the importance of sustainable employability throughout people's working life is undisputed, up till now only one attempt for a conceptual definition has been made (van der Klink et al., 2016). Following the suggestions to further refine and improve this definition recently put forward by Fleuren et al. (2016), we propose an approach to sustainable employability that is based on the Ability Motivation-Opportunity (AMO) framework, and incorporates three indicators: the ability, the motivation, and the opportunity to continue working, respectively. As sustainable employability is considered to be an important aspect of successful aging at work, this study used four different conceptualizations of aging at work to set up convergent and divergent validity of our operationalization of sustainable employability: calendar age, organizational age (job and organizational tenure), functional age (work ability), and life-span age (partner and children). We formulated several hypotheses that were tested by analyzing data from an online survey among 180 employees from Dutch public service organizations who filled out a questionnaire on different age concepts, and their ability, motivation, and opportunity to continue working. Multiple regression analyses were performed, and results showed that the four conceptualizations of aging were differently related to the three indicators of sustainable employability. Life-span age, in terms of having children, had the strongest negative relationship with the ability to continue working, organizational age (i.e., organizational tenure) had the strongest negative relationship with the motivation to continue working, and functional age had the strongest negative relationship with the opportunity to continue working. Moreover, functional age was significantly negatively related to the other two indicators of sustainable employability too, while life-span age appeared to enhance the ability and motivation to continue working (in terms of having children) and the perceived opportunity to continue working (in terms of having a partner). Calendar age was only important for the opportunity to continue working and appeared to have a negative association with this outcome variable. These results lend support to our proposed operationalization of sustainable employability by showing that the three indicators are differently related to different age conceptualizations thus expanding previous research on the conceptualization of sustainable employability. PMID- 29033874 TI - Testing the Motor Simulation Account of Source Errors for Actions in Recall. AB - Observing someone else perform an action can lead to false memories of self performance - the observation inflation effect. One explanation is that action simulation via mirror neuron activation during action observation is responsible for observation inflation by enriching memories of observed actions with motor representations. In three experiments we investigated this account of source memory failures, using a novel paradigm that minimized influences of verbalization and prior object knowledge. Participants worked in pairs to take turns acting out geometric shapes and letters. The next day, participants recalled either actions they had performed or those they had observed. Experiment 1 showed that participants falsely retrieved observed actions as self-performed, but also retrieved self-performed actions as observed. Experiment 2 showed that preventing participants from encoding observed actions motorically by taxing their motor system with a concurrent motor task did not lead to the predicted decrease in false claims of self-performance. Indeed, Experiment 3 showed that this was the case even if participants were asked to carefully monitor their recall. Because our data provide no evidence for a motor activation account, we also discussed our results in light of a source monitoring account. PMID- 29033876 TI - Ideal Standards, Acceptance, and Relationship Satisfaction: Latitudes of Differential Effects. AB - We examined whether the relations of consistency between ideal standards and perceptions of a current romantic partner with partner acceptance and relationship satisfaction level off, or decelerate, above a threshold. We tested our hypothesis using a 3-year longitudinal data set collected from heterosexual newlywed couples. We used two indicators of consistency: pattern correspondence (within-person correlation between ideal standards and perceived partner ratings) and mean-level match (difference between ideal standards score and perceived partner score). Our results revealed that pattern correspondence had no relation with partner acceptance, but a positive linear/exponential association with relationship satisfaction. Mean-level match had a significant positive association with actor's acceptance and relationship satisfaction up to the point where perceived partner score equaled ideal standards score. Partner effects did not show a consistent pattern. The results suggest that the consistency between ideal standards and perceived partner attributes has a non-linear association with acceptance and relationship satisfaction, although the results were more conclusive for mean-level match. PMID- 29033877 TI - Music Interventions and Child Development: A Critical Review and Further Directions. AB - Research on the impact of music interventions has indicated positive effects on a variety of skills. These findings suggest musical interventions may have further potential to support educational processes and development of children. This paper reviews the latest evidence on the effect of musical interventions on the development of primary school-aged children. Four electronic databases were searched from January 2010 through June 2016 using music, music instruction, music education, music lesson, music training, development, child, student, and pupil as key words for the search. Two reviewers independently evaluated the studies to determine whether they met the stated inclusion criteria. Studies were compared on study setup, methodological quality, intervention components, outcome variables, and efficacy. A review of these selected studies (n = 46) suggestive beneficial effects of music intervention on development of children, although clear conclusions cannot be drawn. Possible influencing factors that might contribute to the outcome of intervention are reviewed and recommendations for further research are made. PMID- 29033879 TI - Nasally-Administered Oxytocin Has Limited Effects on Owner-Directed Attachment Behavior in Pet Dogs (Canis lupus familiaris). AB - The present study explored the effects of intranasal oxytocin, a naturally occurring hormone, on the behavior of pet dogs during an attachment test. Each dog participated in two testing sessions. On one visit saline was administered nasally, and on another, oxytocin was administered nasally. For half of the dogs (n = 20), solutions were administered with a Mucosal Atomization Device (MAD) and for half of the dogs (n = 20), solutions were administered using a nasal spray bottle. Condition order was counterbalanced and a double-blind methodology was employed. Following a 30-min wait period after administration of solutions, dog owner pairs participated in the Secure Base Test, a short attachment test consisting of three 2-min phases: (1) Baseline- the owner was present, dogs were able to freely explore the testing room (2) Alone- dogs were left alone in the testing room (3) Return- owners re-entered the room and were reunited with their dog. In each phase the dog was evaluated for contact seeking, exploration, and avoidance behaviors. Although, oxytocin administration was expected to increase owner-directed proximity and contact seeking behavior, this effect was not observed. In fact, in the baseline phase, dogs spent significantly more time seeking the proximity of their owners when they received saline than when they received OT (p < 0.05). Sex differences were also assessed for the behavioral variables of interest in the Secure Base Test, and results indicated that OT did not affect dogs' behavior in the alone phase, but when saline was administered, females spent significantly more time in contact with the door than males in the alone phase (p < 0.05). Overall, the effects of nasally administered oxytocin on attachment related behavior appeared to be limited or inconsistent for this pet dog population. PMID- 29033878 TI - The Actor, Partner, Similarity Effects of Personality, and Interactions with Gender and Relationship Duration among Chinese Emerging Adults. AB - Understanding personality effects and their role in influencing relationship quality, varied according to gender and relationship duration, could help us better understand close relationships. Participants were Chinese dating dyads and were asked to complete both the Big Five Inventory and Perceived Relationship Quality Component scales. Males and those who had a long-term relationship perceived better relationship quality; individuals who scored higher on agreeableness, conscientiousness, openness, and emotional stability enjoyed better relationship quality; gender and/or relationship duration moderated the actor effect of extraversion and the partner effects of conscientiousness, emotional stability, and openness on relationship quality. Regarding the profile similarity, those couples who were more dissimilar in their profile personality had better relationship quality, especially when they were in a relatively long term relationship. Meanwhile, with an increase in profile similarity, the males' perceived relationship quality decreased. PMID- 29033880 TI - Exploring the Multi-Layered Affordances of Composing and Performing Interactive Music with Responsive Technologies. AB - The question motivating the work presented here, starting from a view of music as embodied and situated activity, is how can we account for the complexity of interactive music performance situations. These are situations in which human performers interact with responsive technologies, such as sensor-driven technology or sound synthesis affected by analysis of the performed sound signal. This requires investigating in detail the underlying mechanisms, but also providing a more holistic approach that does not lose track of the complex whole constituted by the interactions and relationships of composers, performers, audience, technologies, etc. The concept of affordances has frequently been invoked in musical research, which has seen a "bodily turn" in recent years, similar to the development of the embodied cognition approach in the cognitive sciences. We therefore begin by broadly delineating its usage in the cognitive sciences in general, and in music research in particular. We argue that what is still missing in the discourse on musical affordances is an encompassing theoretical framework incorporating the sociocultural dimensions that are fundamental to the situatedness and embodiment of interactive music performance and composition. We further argue that the cultural affordances framework, proposed by Rietveld and Kiverstein (2014) and recently articulated further by Ramstead et al. (2016) in this journal, although not previously applied to music, constitutes a promising starting point. It captures and elucidates this complex web of relationships in terms of shared landscapes and individual fields of affordances. We illustrate this with examples foremost from the first author's artistic work as composer and performer of interactive music. This sheds new light on musical composition as a process of construction-and embodied mental simulation-of situations, guiding the performers' and audience's attention in shifting fields of affordances. More generally, we believe that the theoretical perspectives and concrete examples discussed in this paper help to elucidate how situations-and with them affordances-are dynamically constructed through the interactions of various mechanisms as people engage in embodied and situated activity. PMID- 29033881 TI - Age and Gender Differences in Facial Attractiveness, but Not Emotion Resemblance, Contribute to Age and Gender Stereotypes. AB - Considerable research has shown effects of facial appearance on trait impressions and group stereotypes. We extended those findings in two studies that investigated the contribution of resemblance to emotion expressions and attractiveness to younger adults (YA) and older adults (OA) age and gender stereotypes on the dimensions of warmth and competence. Using connectionist modeling of facial metrics of 240 neutral younger and older faces, Study 1 found that, neutral expression older faces or female faces showed greater structural resemblance to happy expressions and less resemblance to angry expressions than did younger or male faces, respectively. In addition, neutral female faces showed greater resemblance to surprise expressions. In Study 2, YA and OA rated the faces of Study 1 for attractiveness and for 4 traits that we aggregated on the dimensions of competence (competent, healthy) and warmth (trustworthy, not shrewd). We found that YA, but not OA, age stereotypes replicated previous research showing higher perceived warmth and lower perceived competence in older adults. In addition, previously documented gender stereotypes were moderated by face age for both YA and OA. The greater attractiveness of younger than older faces and female than male faces influenced age and gender stereotypes, including these deviations from prior research findings using category labels rather than faces. On the other hand, face age and face sex differences in emotion resemblance did not influence age or gender stereotypes, contrary to prediction. Our results provide a caveat to conclusions about age and gender stereotypes derived from responses to category labels, and they reveal the importance of assessing stereotypes with a methodology that is sensitive to influences of group differences in appearance that can exacerbate or mitigate stereotypes in more ecologically valid contexts. Although the gender differences in attractiveness in the present study may not have generalizability, the age differences likely do, and the fact that they can weaken the attribution of greater warmth and strengthen the attribution of lower competence to older than younger individuals has important practical implications. PMID- 29033882 TI - Commentary: The effects of acute stress on core executive functions: A meta analysis and comparison with cortisol. PMID- 29033883 TI - Figurative Language, Language Disorders, and Language(s) Evolution. PMID- 29033884 TI - Commentary: Psychological Science's Aversion to the Null. PMID- 29033886 TI - Complex Problem Solving in Teams: The Impact of Collective Orientation on Team Process Demands. AB - Complex problem solving is challenging and a high-level cognitive process for individuals. When analyzing complex problem solving in teams, an additional, new dimension has to be considered, as teamwork processes increase the requirements already put on individual team members. After introducing an idealized teamwork process model, that complex problem solving teams pass through, and integrating the relevant teamwork skills for interdependently working teams into the model and combining it with the four kinds of team processes (transition, action, interpersonal, and learning processes), the paper demonstrates the importance of fulfilling team process demands for successful complex problem solving within teams. Therefore, results from a controlled team study within complex situations are presented. The study focused on factors that influence action processes, like coordination, such as emergent states like collective orientation, cohesion, and trust and that dynamically enable effective teamwork in complex situations. Before conducting the experiments, participants were divided by median split into two-person teams with either high (n = 58) or low (n = 58) collective orientation values. The study was conducted with the microworld C3Fire, simulating dynamic decision making, and acting in complex situations within a teamwork context. The microworld includes interdependent tasks such as extinguishing forest fires or protecting houses. Two firefighting scenarios had been developed, which takes a maximum of 15 min each. All teams worked on these two scenarios. Coordination within the team and the resulting team performance were calculated based on a log file analysis. The results show that no relationships between trust and action processes and team performance exist. Likewise, no relationships were found for cohesion. Only collective orientation of team members positively influences team performance in complex environments mediated by action processes such as coordination within the team. The results are discussed in relation to previous empirical findings and to learning processes within the team with a focus on feedback strategies. PMID- 29033885 TI - Emotions and Steroid Secretion in Aging Men: A Multi-Study Report. AB - Although aging increases the risk of cognitive and socioemotional deterioration, it has also been shown to be accompanied by an increase in experienced positive emotions and a decrease in negative emotions. Steroid hormones and age-related alterations in secretion patterns have been suggested to play a crucial role in these age-related changes in emotional experience. Importantly, previous studies identified effects of neuroactive hormones on age-related alterations in emotional experience, which vary by sex and depression levels. Therefore, in three independent cross-sectional studies including a total of 776 men, we examined age-related differences in emotional experience and subsequently the moderation effect of steroid hormones. Sample one consisted of 271 self-reporting healthy (SRH) men aged between 40 and 75 years, while sample two comprised 121 men in the identical age range but only including vitally exhausted (VE) men. Sample three included 384 men aged between 25 and 78 years who reported having fathered (FA) at least one child. For the SRH men, age was negatively associated with anxiety symptoms and aggression, while negative trends emerged for depressive symptoms. In VE men, age was negatively associated with depressive symptoms and positively associated with aggression and positive emotions. For FA men, anxiety symptoms and aggression were negatively associated with age. Age trends of steroid hormones and identified moderation effects are reported. However, with adjustment for multiple comparisons, most of the significant associations fade and the reported associations need to be regarded as exploratory starting points for the further investigation of age-related alterations in emotional experience and their relation to steroid secretion. Overall, the results indicate that salivary cortisol might be a moderator of the association between age and symptoms of anxiety for SRH and VE men, while salivary testosterone seems to moderate the association between age and symptoms of anxiety or depression in VE and FA men, respectively. Both hair cortisol and progesterone seem to influence age-related alterations in anger experience. Age related alterations in the hypothalamic-pituitary-adrenal (HPA) axis and the hypothalamic-pituitary-gonadal (HPG) axis emerge as promising avenues to further investigate the decrease in experienced negative emotions in aging men. PMID- 29033887 TI - Atypical Cerebral Manifestations of Disseminated Mycobacterium tuberculosis. AB - BACKGROUND: We investigated the patterns of cerebral manifestations in patients with underlying pulmonary or extrapulmonary tuberculosis or disseminated tuberculosis. MATERIALS AND METHODS: From January 2010 to September 2016, brain magnetic resonance imaging (MRI) scans were obtained to evaluate cerebral manifestations in patients with underlying pulmonary or extrapulmonary tuberculosis. We also included patients with drug-resistant tuberculosis or disseminated tuberculosis. MRI findings of tuberculous meningitis and tuberculoma were classified as typical; other MRI findings were classified as atypical. Demographic data, risk factors, and drug regimens were collected and analyzed. RESULTS: Twenty-two patients were diagnosed with cerebral tuberculosis. Cerebral tuberculosis was due to hematogenous spread from pulmonary tuberculosis (10 patients), spinal tuberculosis (8 patients), disseminated tuberculosis (3 patients), and unknown causes (1 patient). There were six patients with typical MRI findings (three patients with typical meningitis involving the basal cistern and supratentorium, one patient with tuberculomas, and two patients with both) and seven patients with atypical MRI findings [five patients with evidence of early meningitis, such as high signal intensity on fluid-attenuated inversion recovery (FLAIR) along the cerebellar folia, and two patients with only hydrocephalus]. CONCLUSION: Besides the typical sites of meningeal involvement, overlooked findings such as FLAIR abnormalities along the cerebellar folia or hydrocephalus should be checked for early detection of cerebral tuberculosis and initiation of the appropriate treatment against disseminated tuberculosis. PMID- 29033889 TI - A Retrospective Study of the Characteristics and Clinical Significance of A-Waves in Amyotrophic Lateral Sclerosis. AB - A-wave was observed in patients with motor neuron disease (1). However, data on the characteristics and clinical significance of A-waves in patients with amyotrophic lateral sclerosis (ALS) have been scarce. The F-wave studies of 83 patients with ALS and 63 normal participants which were conducted previously at the Department of Neurology in Peking Union Medical College Hospital were retrospectively reviewed to determine the occurrence of A-waves in ALS. A-waves occurred more frequently in ALS patients than in normal controls. For the median and peroneal nerves, the frequencies of nerves with A-waves and frequencies of patients with A-waves were comparable between the ALS patients and normal controls. For the ulnar and tibial nerves, the frequencies of nerves with A-waves and frequencies of patients with A-waves were significantly increased in the ALS patients compared with those of the normal participants. Disease progression rate was slower in the ALS patients with A-waves (0.73 +/- 0.99) than that in the ALS patients without A-waves (0.87 +/- 0.55, P = 0.007). No correlations were found between the amplitudes of F-waves with A-waves and those of A-waves in the ulnar nerves (r = 0.423, P = 0.149). No correlations were found between the persistence of F-waves with A-waves and the persistence of A-waves in the ulnar nerves as well (r = 0.219, P = 0.473). The occurrence of A-waves may indicate dysfunction of lower motor neurons and possibly imply a relatively slower degenerative process. PMID- 29033891 TI - Commentary: The Effect of Systemic Nitroglycerin Administration on the Kynurenine Pathway in the Rat. PMID- 29033890 TI - An Enigmatic Case of Acute Mercury Poisoning: Clinical, Immunological Findings and Platelet Function. AB - Severe mercury intoxication is very rare in developed countries, but still occurs as the result of volatile substance abuse, suicide attempts, occupational hazards, or endemic food ingestion as reported in the cases of public health disasters in Iraq and in Minamata Bay, Japan. Here, we describe the dramatic physical and cognitive decline of a 23-year-old patient caused by a severe methyl mercury (MeHg) intoxication of unknown origin. We show serial magnetic resonance imaging (MRI) of the patient's brain, as well as ex vivo analyses of blood and cerebrospinal fluid including multicolor flow cytometric measurements, functional assays of hemostaseologic efficacy, and evaluation of regulatory effector molecules. Together with the clinical history, our findings show the progressive neuronal degeneration accompanying the deterioration of the patient. Moreover, the ex vivo analyses display alterations of thrombocyte function and coagulation, as well as an immunological milieu facilitating autoimmunity. Despite the successful reduction of the MeHg concentration in the patient's blood with erythrocyte apheresis and chelator therapy, his condition did not improve and led to a persistent vegetative state. This case illustrates the neurotoxicity of MeHg following severe intoxication for the first time by serial MRI. Data on immune cell and thrombocyte function as well as on coagulation in mercury poisoning reveal potential implications for anticoagulation and immunomodulatory treatment. PMID- 29033892 TI - Molecular Diagnosis of Myoclonus Epilepsy Associated with Ragged-Red Fibers Syndrome in the Absence of Ragged Red Fibers. AB - Myoclonus epilepsy with ragged-red fibers (MERRFs), an inherited mitochondrial disorder, has characteristic morphological changes of ragged-red fibers (RRFs) in muscle biopsy, in the absence of which mitochondrial etiology is usually not considered in patients with phenotypes suggestive of MERRF. In these circumstances, MERRF can only be diagnosed using genetic analyses. The symptoms, pathological findings, and imaging results being age dependent, we can construct a protocol based on these characteristics to understand the disease's natural course and to manage patients more effectively. The absence of RRFs should not preclude a MERRF diagnosis. PMID- 29033888 TI - Concussion As a Multi-Scale Complex System: An Interdisciplinary Synthesis of Current Knowledge. AB - Traumatic brain injury (TBI) has been called "the most complicated disease of the most complex organ of the body" and is an increasingly high-profile public health issue. Many patients report long-term impairments following even "mild" injuries, but reliable criteria for diagnosis and prognosis are lacking. Every clinical trial for TBI treatment to date has failed to demonstrate reliable and safe improvement in outcomes, and the existing body of literature is insufficient to support the creation of a new classification system. Concussion, or mild TBI, is a highly heterogeneous phenomenon, and numerous factors interact dynamically to influence an individual's recovery trajectory. Many of the obstacles faced in research and clinical practice related to TBI and concussion, including observed heterogeneity, arguably stem from the complexity of the condition itself. To improve understanding of this complexity, we review the current state of research through the lens provided by the interdisciplinary field of systems science, which has been increasingly applied to biomedical issues. The review was conducted iteratively, through multiple phases of literature review, expert interviews, and systems diagramming and represents the first phase in an effort to develop systems models of concussion. The primary focus of this work was to examine concepts and ways of thinking about concussion that currently impede research design and block advancements in care of TBI. Results are presented in the form of a multi-scale conceptual framework intended to synthesize knowledge across disciplines, improve research design, and provide a broader, multi-scale model for understanding concussion pathophysiology, classification, and treatment. PMID- 29033894 TI - Serum Thyrotropin and Phase of the Menstrual Cycle. AB - About one-fifth of patients treated with levothyroxine have serum thyrotropin (TSH) above target concentrations but, in approximately 15% of them, the cause of this TSH insufficient normalization remains unknown. We report the cases of two regularly menstruating women with known thyroid disease who had TSH levels consistently >3 mU/L (and sometimes above target levels) during mid-cycle, but consistently lower serum levels during the follicular and luteal phases of menstrual cycle. A major TSH release by the thyrotrophs in response to high circulating levels of estradiol (E2) at mid-cycle may increase levels of TSH compared to other phases of the cycle. The increased TSH can be misinterpreted as refractory hypothyroidism if the woman is under L-T4 replacement therapy or as subclinical hypothyroidism if the woman is not. Our findings might have important implications for diagnosis and management of thyroid disease, suggesting to request serum TSH measurements outside of the periovulatory days. PMID- 29033893 TI - Shortcomings in the Current Amyotrophic Lateral Sclerosis Trials and Potential Solutions for Improvement. AB - Amyotrophic lateral sclerosis (ALS) is a clinically progressive neurodegenerative syndrome predominantly affecting motor neurons and their associated tracts. Riluzole and edaravone are the only FDA certified drugs for treating ALS. Over the past two decades, almost all clinical trials aiming to develop a successful therapeutic strategy for this disease have failed. Genetic complexity, inadequate animal models, poor clinical trial design, lack of sensitive biomarkers, and diagnostic delays are some of the potential reasons limiting any significant development in ALS clinical trials. In this review, we have outlined the possible reasons for failure of ALS clinical trials, addressed the factors limiting timely diagnosis, and suggested possible solutions for future considerations for each of the shortcomings. PMID- 29033895 TI - Autoimmune Thyroid Diseases in Patients Treated with Alemtuzumab for Multiple Sclerosis: An Example of Selective Anti-TSH-Receptor Immune Response. AB - Alemtuzumab, a humanized anti-CD52 monoclonal antibody, is approved for the treatment of active relapsing-remitting multiple sclerosis (MS). Alemtuzumab induces a rapid and prolonged depletion of lymphocytes from the circulation, which results in a profound immuno-suppression status followed by an immune reconstitution phase. Secondary to reconstitution autoimmune diseases represent the most common side effect of Alemtuzumab treatment. Among them, Graves' disease (GD) is the most frequent one with an estimated prevalence ranging from 16.7 to 41.0% of MS patients receiving Alemtuzumab. Thyrotropin (TSH) receptor (R) reactive B cells are typically observed in GD and eventually present this autoantigen to T-cells, which, in turn, secrete several pro-inflammatory cytokines and chemokines. Given that reconstitution autoimmunity is more frequently characterized by autoantibody-mediated diseases rather than by destructive Th1-mediated disorders, it is not surprising that GD is the most commonly reported side effect of Alemtuzumab treatment in patients with MS. On the other hand, immune reconstitution GD was not observed in a large series of patients with rheumatoid arthritis treated with Alemtuzumab. This negative finding supports the view that patients with MS are intrinsically more at risk for developing Alemtuzumab-related thyroid dysfunctions and in particular of GD. From a clinical point of view, Alemtuzumab-induced GD is characterized by a surprisingly high rate of remission, both spontaneous and after antithyroid drugs, as well as by a spontaneous shift to hypothyroidism, which is supposed to result from a change from stimulating to blocking TSH-receptor antibodies. These immune and clinical peculiarities support the concept that antithyroid drugs should be the first-line treatment in Alemtuzumab-induced Graves' hyperthyroidism. PMID- 29033896 TI - The Influence of a KDT501, a Novel Isohumulone, on Adipocyte Function in Humans. AB - OBJECTIVE: In a phase II clinical trial in nine obese, insulin-resistant humans, we observed that treatment with KDT501, a novel isohumulone drug, increased total and high-molecular weight (HMW) adiponectin in plasma. The objective was to determine whether KDT501 increased adiponectin secretion from subcutaneous white adipose tissue (SC WAT) and the underlying mechanism(s). METHODS: Nine obese participants with either prediabetes or with normal glucose tolerance plus three features of metabolic syndrome were part of the study. SC WAT biopsies were performed before and after 28 days of KDT501 treatment in a clinical research setting. In addition, a cold stimulus was used to induce thermogenic gene expression. Adiponectin secretion was measured, and gene expression of 130 genes involved in adipose tissue function was determined. The effect of KDT501 on adipocyte mitochondrial function was analyzed in vitro. RESULTS: SC WAT explants secreted more total and HMW adiponectin after KDT501 treatment (P < 0.05). After KDT501 treatment, a number of genes involved in thermogenesis and lipolysis were induced by cold (P < 0.05). KDT501 also potentiated beta-adrenergic signaling (P < 0.001) and enhanced mitochondrial function in adipocytes (P < 0.001). CONCLUSION: KDT501 induced adiponectin secretion posttranscriptionally and increased gene expression of thermogenic and lipolytic genes in response to cold stimulation. These beneficial effects on SC WAT may be explained by the ability of KDT501 to potentiate beta-adrenergic signaling and enhance mitochondrial function in adipocytes. CLINICAL TRIAL REGISTRATION: https://www.ClinicalTrials.gov, ID number: NCT02444910. PMID- 29033897 TI - Evaluation of Cardiometabolic Parameters among Obese Women Using Oral Contraceptives. AB - BACKGROUND: Combined oral contraceptive (COC) use has been associated with an unfavorable impact on carbohydrate and lipid metabolism in diverse populations of normal weight and obese women. The present study aimed to evaluate the cardiometabolic and inflammatory profiles of women in northeastern Brazil with respect to COC use and obesity. METHODS: We performed a cross-sectional study to verify cardiovascular parameters, including blood pressure (BP), fasting serum glucose, lipid, and inflammatory profile, in a population of women aged 15-45 years, considering obesity and COC use. Our sample consisted of 591 women, 481 women who were COC users, and 110 age-matched women who were COC non-users, classified as obese and non-obese according to BMI. RESULTS: COC use and obesity were associated with increased systolic (p <= 0.001) and diastolic BP (p = 0.001), blood glucose (p <= 0.001), total cholesterol (p = 0.008), low-density lipoprotein cholesterol (p <= 0.001), very low-density lipoprotein cholesterol (p <= 0.001), triglycerides (p <= 0.001), ferritin (p = 0.006), C-reactive protein (CRP) (p <= 0.001), and nitric oxide metabolites (p <= 0.001), as well as decreased high-density lipoprotein cholesterol (HDL-c) (p <= 0.001) in comparison to controls. CRP and HDL-c levels in obese COC users were determined to be outside reference range values. The odds of having lower levels of HDL-c and elevated CRP increased among obese COC users. COC use was independently associated with low levels of HDL-c, especially second-generation progestins (p < 0.001; OR = 8.976; 95% CI 2.786-28.914). CONCLUSION: Obesity and COC use were associated with alterations in lipid and inflammatory cardiometabolic parameters, particularly increased CRP levels and decreased HDL-c, which are considered markers of cardiovascular disease (CVD) risk. Given the need to prevent unintended pregnancy among obese women, together with weight loss counseling, it is important to evaluate the most effective and safest contraceptive methods to avoid the potential risk of developing CVD. PMID- 29033898 TI - Functional Characterization of Paralogous Gonadotropin-Releasing Hormone-Type and Corazonin-Type Neuropeptides in an Echinoderm. AB - Homologs of the vertebrate neuropeptide gonadotropin-releasing hormone (GnRH) have been identified in invertebrates, including the insect neuropeptide corazonin (CRZ). Recently, we reported the discovery of GnRH-type and CRZ-type signaling systems in an echinoderm, the starfish Asterias rubens, demonstrating that the evolutionary origin of paralogous GnRH-type and CRZ-type neuropeptides can be traced back to the common ancestor of protostomes and deuterostomes. Here, we have investigated the physiological roles of the GnRH-type (ArGnRH) and the CRZ-type (ArCRZ) neuropeptides in A. rubens, using mRNA in situ hybridization, immunohistochemistry and in vitro pharmacology. ArGnRH precursor (ArGnRHP) expressing cells and ArGnRH-immunoreactive cells and/or processes are present in the radial nerve cords, circumoral nerve ring, digestive system (e.g., cardiac stomach and pyloric stomach), body wall-associated muscle (apical muscle), and appendages (tube feet, terminal tentacle). The general distribution of ArCRZ precursor (ArCRZP)-expressing cells is similar to that of ArGnRHP, but with specific local differences. For example, cells expressing ArGnRHP are present in both the ectoneural and hyponeural regions of the radial nerve cords and circumoral nerve ring, whereas cells expressing ArCRZP were only observed in the ectoneural region. In vitro pharmacological experiments revealed that both ArGnRH and ArCRZ cause contraction of cardiac stomach, apical muscle, and tube foot preparations. However, ArGnRH was more potent/effective than ArCRZ as a contractant of the cardiac stomach, whereas ArCRZ was more potent/effective than ArGnRH as a contractant of the apical muscle. These findings demonstrate that both ArGnRH and ArCRZ are myoexcitatory neuropeptides in starfish, but differences in their expression patterns and pharmacological activities are indicative of distinct physiological roles. This is the first study to investigate the physiological roles of both GnRH-type and CRZ-type neuropeptides in a deuterostome, providing new insights into the evolution and comparative physiology of these paralogous neuropeptide signaling systems in the Bilateria. PMID- 29033900 TI - Weak Organic Acids Decrease Borrelia burgdorferi Cytoplasmic pH, Eliciting an Acid Stress Response and Impacting RpoN- and RpoS-Dependent Gene Expression. AB - The spirochete Borrelia burgdorferi survives in its tick vector, Ixodes scapularis, or within various hosts. To transition between and survive in these distinct niches, B. burgdorferi changes its gene expression in response to environmental cues, both biochemical and physiological. Exposure of B. burgdorferi to weak monocarboxylic organic acids, including those detected in the blood meal of fed ticks, decreased the cytoplasmic pH of B. burgdorferi in vitro. A decrease in the cytoplasmic pH induced the expression of genes encoding enzymes that have been shown to restore pH homeostasis in other bacteria. These include putative coupled proton/cation exchangers, a putative Na+/H+ antiporter, a neutralizing buffer transporter, an amino acid deaminase and a proton exporting vacuolar-type VoV1 ATPase. Data presented in this report suggested that the acid stress response triggered the expression of RpoN- and RpoS-dependent genes including important virulence factors such as outer surface protein C (OspC), BBA66, and some BosR (Borrelia oxidative stress regulator)-dependent genes. Because the expression of virulence factors, like OspC, are so tightly connected by RpoS to general cellular stress responses and cell physiology, it is difficult to separate transmission-promoting conditions in what is clearly a multifactorial and complex regulatory web. PMID- 29033901 TI - Monte Carlo Simulations Suggest Current Chlortetracycline Drug-Residue Based Withdrawal Periods Would Not Control Antimicrobial Resistance Dissemination from Feedlot to Slaughterhouse. AB - Antimicrobial use in beef cattle can increase antimicrobial resistance prevalence in their enteric bacteria, including potential pathogens such as Escherichia coli. These bacteria can contaminate animal products at slaughterhouses and cause food-borne illness, which can be difficult to treat if it is due to antimicrobial resistant bacteria. One potential intervention to reduce the dissemination of resistant bacteria from feedlot to consumer is to impose a withdrawal period after antimicrobial use, similar to the current withdrawal period designed to prevent drug residues in edible animal meat. We investigated tetracycline resistance in generic E. coli in the bovine large intestine during and after antimicrobial treatment by building a mathematical model of oral chlortetracycline pharmacokinetics-pharmacodynamics and E. coli population dynamics. We tracked three E. coli subpopulations (susceptible, intermediate, and resistant) during and after treatment with each of three United States chlortetracycline indications (liver abscess reduction, disease control, disease treatment). We compared the proportion of resistant E. coli before antimicrobial use to that at several time points after treatment and found a greater proportion of resistant enteric E. coli after the current withdrawal periods than prior to treatment. In order for the proportion of resistant E. coli in the median beef steer to return to the pre-treatment level, withdrawal periods of 15 days after liver abscess reduction dosing (70 mg daily), 31 days after disease control dosing (350 mg daily), and 36 days after disease treatment dosing (22 mg/kg bodyweight for 5 days) are required in this model. These antimicrobial resistance withdrawal periods would be substantially longer than the current U.S. withdrawals of 0-2 days or Canadian withdrawals of 5-10 days. One published field study found similar time periods necessary to reduce the proportion of resistant E. coli following chlortetracycline disease treatment to those suggested by this model, but additional carefully designed field studies are necessary to confirm the model results. This model is limited to biological processes within the cattle and does not include resistance selection in the feedlot environment or co selection of chlortetracycline resistance following other antimicrobial use. PMID- 29033902 TI - Analyzing the Complex Regulatory Landscape of Hfq - an Integrative, Multi-Omics Approach. AB - The ability of bacteria to respond to environmental change is based on the ability to coordinate, redirect and fine-tune their genetic repertoire as and when required. While we can learn a great deal from reductive analysis of individual pathways and global approaches to gene regulation, a deeper understanding of these complex signaling networks requires the simultaneous consideration of several regulatory layers at the genome scale. To highlight the power of this approach we analyzed the Hfq transcriptional/translational regulatory network in the model bacterium Pseudomonas fluorescens. We first used extensive 'omics' analyses to assess how hfq deletion affects mRNA abundance, mRNA translation and protein abundance. The subsequent, multi-level integration of these datasets allows us to highlight the discrete contributions by Hfq to gene regulation at different levels. The integrative approach to regulatory analysis we describe here has significant potential, for both dissecting individual signaling pathways and understanding the strategies bacteria use to cope with external challenges. PMID- 29033899 TI - Environmental Factors Contribute to beta Cell Endoplasmic Reticulum Stress and Neo-Antigen Formation in Type 1 Diabetes. AB - Type 1 diabetes (T1D) is an autoimmune disease in which immune-mediated targeting and destruction of insulin-producing pancreatic islet beta cells leads to chronic hyperglycemia. There are many beta cell proteins that are targeted by autoreactive T cells in their native state. However, recent studies have demonstrated that many beta cell proteins are recognized as neo-antigens following posttranslational modification (PTM). Although modified neo-antigens are well-established targets of pathology in other autoimmune diseases, the effects of neo-antigens in T1D progression and the mechanisms by which they are generated are not well understood. We have demonstrated that PTM occurs during endoplasmic reticulum (ER) stress, a process to which beta cells are uniquely susceptible due to the high rate of insulin production in response to dynamic glucose sensing. In the context of genetic susceptibility to autoimmunity, presentation of these modified neo-antigens may activate autoreactive T cells and cause pathology. However, inherent beta cell ER stress and protein PTM do not cause T1D in every genetically susceptible individual, suggesting the contribution of additional factors. Indeed, many environmental factors, such as viral infection, chemicals, or inflammatory cytokines, are associated with T1D onset, but the mechanisms by which these factors lead to disease onset remain unknown. Since these environmental factors also cause ER stress, exposure to these factors may enhance production of neo-antigens, therefore boosting beta cell recognition by autoreactive T cells and exacerbating T1D pathogenesis. Therefore, the combined effects of physiological ER stress and the stress that is induced by environmental factors may lead to breaks in peripheral tolerance, contribute to antigen spread, and hasten disease onset. This Hypothesis and Theory article summarizes what is currently known about ER stress and protein PTM in autoimmune diseases including T1D and proposes a role for environmental factors in breaking immune tolerance to beta cell antigens through neo-antigen formation. PMID- 29033903 TI - Protective Effect of Akkermansia muciniphila against Immune-Mediated Liver Injury in a Mouse Model. AB - Accumulating evidence indicates that gut microbiota participates in the pathogenesis and progression of liver diseases. The severity of immune-mediated liver injury is associated with different microbial communities. Akkermansia muciniphila can regulate immunologic and metabolic functions. However, little is known about its effects on gut microbiota structure and function. This study investigated the effect of A. muciniphila on immune-mediated liver injury and potential underlying mechanisms. Twenty-two C57BL/6 mice were assigned to three groups (N = 7-8 per group) and continuously administrated A. muciniphila MucT or PBS by oral gavage for 14 days. Mouse feces were collected for gut microbiota analysis on the 15th day, and acute liver injury was induced by Concanavalin A (Con A, 15 mg/kg) injection through the tail vein. Samples (blood, liver, ileum, colon) were assessed for liver injury, systemic inflammation, and intestinal barrier function. We found that oral administration of A. muciniphila decreased serum ALT and AST and alleviated liver histopathological damage induced by Con A. Serum levels of pro-inflammatory cytokines and chemokines (IL-2, IFN-gamma, IL 12p40, MCP-1, MIP-1a, MIP-1b) were substantially attenuated. A. muciniphila significantly decreased hepatocellular apoptosis; Bcl-2 expression increased, but Fas and DR5 decreased. Further investigation showed that A. muciniphila enhanced expression of Occludin and Tjp-1 and inhibited CB1 receptor, which strengthened intestinal barriers and reduced systemic LPS level. Fecal 16S rRNA sequence analysis indicated that A. muciniphila increased microbial richness and diversity. The community structure of the Akk group clustered distinctly from that of mice pretreated with PBS. Relative abundance of Firmicutes increased, and Bacteroidetes abundance decreased. Correlation analysis showed that injury related factors (IL-12p40, IFN-gamma, DR5) were negatively associated with specific genera (Ruminococcaceae_UCG_009, Lachnospiraceae_UCG_001, Akkermansia), which were enriched in mice pretreated with A. muciniphila. Our results suggested that A. muciniphila MucT had beneficial effects on immune-mediated liver injury by alleviating inflammation and hepatocellular death. These effects may be driven by the protective profile of the intestinal community induced by the bacteria. The results provide a new perspective on the immune function of gut microbiota in host diseases. PMID- 29033904 TI - An Improved In-house MALDI-TOF MS Protocol for Direct Cost-Effective Identification of Pathogens from Blood Cultures. AB - Background: Bloodstream infection is a major cause of morbidity and mortality in hospitalized patients worldwide. Delays in the identification of microorganisms often leads to a poor prognosis. The application of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) directly to blood culture (BC) broth can potentially identify bloodstream infections earlier, and facilitate timely management. Methods: We developed an "in-house" (IH) protocol for direct MALDI-TOF MS based identification of organisms in positive BCs. The IH protocol was initially evaluated and improved with spiked BC samples, and its performance was compared with the commercial SepsityperTM kit using both traditional and modified cut-off values. We then studied in parallel the performance of the IH protocol and the colony MS identifications in positive clinical BC samples using only modified cut-off values. All discrepancies were investigated by "gold standard" of gene sequencing. Results: In 54 spiked BC samples, the IH method showed comparable results with SepsityperTM after applying modified cut-off values. Specifically, accurate species and genus level identification was achieved in 88.7 and 3.9% of all the clinical monomicrobial BCs (284/301, 94.4%), respectively. The IH protocol exhibited superior performance for Gram negative bacteria than for Gram positive bacteria (92.8 vs. 82.4%). For anaerobes and yeasts, accurate species identification was achieved in 80.0 and 90.0% of the cases, respectively. For polymicrobial cultures (17/301, 5.6%), MALDI-TOF MS correctly identified a single species present in all the polymicrobial BCs under the Standard mode, while using the MIXED method, two species were correctly identified in 52.9% of the samples. Comparisons based on BC bottle type, showed that the BACTECTM Lytic/10 Anaerobic/F culture vials performed the best. Conclusion: Our study provides a novel and effective sample preparation method for MALDI-TOF MS direct identification of pathogens from positive BC vials, with a lower cost ($1.5 vs. $ 7) albeit a slightly more laborious extracting process (an extra 15 min) compared with SepsityperTM kit. PMID- 29033905 TI - A Review on the Applications of Next Generation Sequencing Technologies as Applied to Food-Related Microbiome Studies. AB - The development of next generation sequencing (NGS) techniques has enabled researchers to study and understand the world of microorganisms from broader and deeper perspectives. The contemporary advances in DNA sequencing technologies have not only enabled finer characterization of bacterial genomes but also provided deeper taxonomic identification of complex microbiomes which in its genomic essence is the combined genetic material of the microorganisms inhabiting an environment, whether the environment be a particular body econiche (e.g., human intestinal contents) or a food manufacturing facility econiche (e.g., floor drain). To date, 16S rDNA sequencing, metagenomics and metatranscriptomics are the three basic sequencing strategies used in the taxonomic identification and characterization of food-related microbiomes. These sequencing strategies have used different NGS platforms for DNA and RNA sequence identification. Traditionally, 16S rDNA sequencing has played a key role in understanding the taxonomic composition of a food-related microbiome. Recently, metagenomic approaches have resulted in improved understanding of a microbiome by providing a species-level/strain-level characterization. Further, metatranscriptomic approaches have contributed to the functional characterization of the complex interactions between different microbial communities within a single microbiome. Many studies have highlighted the use of NGS techniques in investigating the microbiome of fermented foods. However, the utilization of NGS techniques in studying the microbiome of non-fermented foods are limited. This review provides a brief overview of the advances in DNA sequencing chemistries as the technology progressed from first, next and third generations and highlights how NGS provided a deeper understanding of food-related microbiomes with special focus on non fermented foods. PMID- 29033907 TI - High-Salt Diet Has a Certain Impact on Protein Digestion and Gut Microbiota: A Sequencing and Proteome Combined Study. AB - High-salt diet has been considered to cause health problems, but it is still less known how high-salt diet affects gut microbiota, protein digestion, and passage in the digestive tract. In this study, C57BL/6J mice were fed low- or high-salt diets (0.25 vs. 3.15% NaCl) for 8 weeks, and then gut contents and feces were collected. Fecal microbiota was identified by sequencing the V4 region of 16S ribosomal RNA gene. Proteins and digested products of duodenal, jejunal, cecal, and colonic contents were identified by LC-MS-MS. The results indicated that the high-salt diet increased Firmicutes/Bacteroidetes ratio, the abundances of genera Lachnospiraceae and Ruminococcus (P < 0.05), but decreased the abundance of Lactobacillus (P < 0.05). LC-MS-MS revealed a dynamic change of proteins from the diet, host, and gut microbiota alongside the digestive tract. For dietary proteins, high-salt diet seemed not influence its protein digestion and absorption. For host proteins, 20 proteins of lower abundance were identified in the high-salt diet group in duodenal contents, which were involved in digestive enzymes and pancreatic secretion. However, no significant differentially expressed proteins were detected in jejunal, cecal, and colonic contents. For bacterial proteins, proteins secreted by gut microbiota were involved in energy metabolism, sodium transport, and protein folding. Five proteins (cytidylate kinase, trigger factor, 6-phosphogluconate dehydrogenase, transporter, and undecaprenyl-diphosphatase) had a higher abundance in the high-salt diet group than those in the low-salt group, while two proteins (acetylglutamate kinase and PBSX phage manganese-containing catalase) were over-expressed in the low-salt diet group than in the high-salt group. Consequently, high-salt diet may alter the composition of gut microbiota and has a certain impact on protein digestion. PMID- 29033908 TI - The Bacterial Species Campylobacter jejuni Induce Diverse Innate Immune Responses in Human and Avian Intestinal Epithelial Cells. AB - Campylobacter remain the major cause of human gastroenteritis in the Developed World causing a significant burden to health services. Campylobacter are pathogens in humans and chickens, although differences in mechanistic understanding are incomplete, in part because phenotypic strain diversity creates inconsistent findings. Here, we took Campylobacter jejuni isolates (n = 100) from multi-locus sequence typed collections to assess their pathogenic diversity, through their inflammatory, cytotoxicity, adhesion, invasion and signaling responses in a high-throughput model using avian and human intestinal epithelial cells. C. jejuni induced IL-8 and CXCLi1/2 in human and avian epithelial cells, respectively, in a MAP kinase-dependent manner. In contrast, IL-10 responses in both cell types were PI 3-kinase/Akt-dependent. C. jejuni strains showed diverse levels of invasion with high invasion dependent on MAP kinase signaling in both cell lines. C. jejuni induced diverse cytotoxic responses in both cell lines with cdt-positive isolates showing significantly higher toxicity. Blockade of endocytic pathways suggested that invasion by C. jejuni was clathrin- and dynamin dependent but caveolae- independent in both cells. In contrast, IL-8 (and CXCLi1/2) production was dependent on clathrin, dynamin, and caveolae. This study is important because of its scale, and the data produced, suggesting that avian and human epithelial cells use similar innate immune pathways where the magnitude of the response is determined by the phenotypic diversity of the Campylobacter species. PMID- 29033909 TI - Benzene and Naphthalene Degrading Bacterial Communities in an Oil Sands Tailings Pond. AB - Oil sands process-affected water (OSPW), produced by surface-mining of oil sands in Canada, is alkaline and contains high concentrations of salts, metals, naphthenic acids, and polycyclic aromatic compounds (PAHs). Residual hydrocarbon biodegradation occurs naturally, but little is known about the hydrocarbon degrading microbial communities present in OSPW. In this study, aerobic oxidation of benzene and naphthalene in the surface layer of an oil sands tailings pond were measured. The potential oxidation rates were 4.3 MUmol L-1 OSPW d-1 for benzene and 21.4 MUmol L-1 OSPW d-1 for naphthalene. To identify benzene and naphthalene-degrading microbial communities, metagenomics was combined with stable isotope probing (SIP), high-throughput sequencing of 16S rRNA gene amplicons, and isolation of microbial strains. SIP using 13C-benzene and 13C naphthalene detected strains of the genera Methyloversatilis and Zavarzinia as the main benzene degraders, while strains belonging to the family Chromatiaceae and the genus Thauera were the main naphthalene degraders. Metagenomic analysis revealed a diversity of genes encoding oxygenases active against aromatic compounds. Although these genes apparently belonged to many phylogenetically diverse taxa, only a few of these taxa were predominant in the SIP experiments. This suggested that many members of the community are adapted to consuming other aromatic compounds, or are active only under specific conditions. 16S rRNA gene sequence datasets have been submitted to the Sequence Read Archive (SRA) under accession number SRP109130. The Gold Study and Project submission ID number in Joint Genome Institute IMG/M for the metagenome is Gs0047444 and Gp0055765. PMID- 29033906 TI - Long Non-coding RNAs in Hepatitis C Virus-Infected Cells. AB - Hepatitis C virus (HCV) often leads to a chronic infection in the liver that may progress to steatosis, fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). Several viral and cellular factors are required for a productive infection and for the development of liver disease. Some of these are long non-coding RNAs (lncRNAs) deregulated in infected cells. After HCV infection, the sequence and the structure of the viral RNA genome are sensed to activate interferon (IFN) synthesis and signaling pathways. These antiviral pathways regulate transcription of several cellular lncRNAs. Some of these are also deregulated in response to viral replication. Certain viral proteins and/or viral replication can activate transcription factors such as MYC, SP1, NRF2, or HIF1alpha that modulate the expression of additional cellular lncRNAs. Interestingly, several lncRNAs deregulated in HCV-infected cells described so far play proviral or antiviral functions by acting as positive or negative regulators of the IFN system, while others help in the development of liver cirrhosis and HCC. The study of the structure and mechanism of action of these lncRNAs may aid in the development of novel strategies to treat infectious and immune pathologies and liver diseases such as cirrhosis and HCC. PMID- 29033910 TI - Resistance of Animal Strains of Pseudomonas aeruginosa to Carbapenems. AB - Carbapenems are major antibiotics reserved to human medicine. This study aimed to investigate the mechanisms of carbapenem resistance of a selection of Pseudomonas aeruginosa veterinary strains from the French network Resapath. Thirty (5.7%) imipenem and/or meropenem non-susceptible P. aeruginosa of canine (n = 24), feline (n = 5), or bovine (n = 1) origin were identified in a large collection of 527 veterinary strains gathered by the Resapath. These resistant isolates belonged to 25 MultiLocus Sequence Types (MLST), of which 17 (68%) are shared with clinical (human) strains, such as high risk clones ST233 and ST395. Interestingly, none of the veterinary strains produced a carbapenemase, and only six of them (20%) harbored deletions or insertion sequence (IS) disrupting the porin OprD gene. The remaining 24 strains contained mutations or IS in various loci resulting in down-regulation of gene oprD coupled with upregulation of efflux system CzcCBA (n = 3; activation of sensor kinase CzcS +/- CopS), MexEF OprN (n = 4; alteration of oxido reductase MexS), MexXY (n = 8; activation of two component system ParRS), or MexAB-OprM (n = 12; alteration of regulator MexR, NalC +/- NalD). Two efflux pumps were co-produced simultaneously in three mutants. Finally, in 11 out of 12 strains displaying an intact porin OprD, derepression of MexAB-OprM accounted for a decreased susceptibility to meropenem relative to imipenem. Though not treated by carbapenems, animals thus represent a reservoir of multidrug resistant P. aeruginosa strains potentially able to contaminate fragile outpatients. PMID- 29033914 TI - Editorial: The Impact of Microorganisms on Consumption of Atmospheric Trace Gases. PMID- 29033911 TI - Characterization and Exploitation of CRISPR Loci in Bifidobacterium longum. AB - Diverse CRISPR-Cas systems provide adaptive immunity in many bacteria and most archaea, via a DNA-encoded, RNA-mediated, nucleic-acid targeting mechanism. Over time, CRISPR loci expand via iterative uptake of invasive DNA sequences into the CRISPR array during the adaptation process. These genetic vaccination cards thus provide insights into the exposure of strains to phages and plasmids in space and time, revealing the historical predatory exposure of a strain. These genetic loci thus constitute a unique basis for genotyping of strains, with potential of resolution at the strain-level. Here, we investigate the occurrence and diversity of CRISPR-Cas systems in the genomes of various Bifidobacterium longum strains across three sub-species. Specifically, we analyzed the genomic content of 66 genomes belonging to B. longum subsp. longum, B. longum subsp. infantis and B. longum subsp. suis, and identified 25 strains that carry 29 total CRISPR-Cas systems. We identify various Type I and Type II CRISPR-Cas systems that are widespread in this species, notably I-C, I-E, and II-C. Noteworthy, Type I-C systems showed extended CRISPR arrays, with extensive spacer diversity. We show how these hypervariable loci can be used to gain insights into strain origin, evolution and phylogeny, and can provide discriminatory sequences to distinguish even clonal isolates. By investigating CRISPR spacer sequences, we reveal their origin and implicate phages and prophages as drivers of CRISPR immunity expansion in this species, with redundant targeting of select prophages. Analysis of CRISPR spacer origin also revealed novel PAM sequences. Our results suggest that CRISPR Cas immune systems are instrumental in mounting diversified viral resistance in B. longum, and show that these sequences are useful for typing across three subspecies. PMID- 29033912 TI - The Infectious Basis of ACPA-Positive Rheumatoid Arthritis. AB - Rheumatoid arthritis (RA) is associated with HLA-DRB1 shared epitope (HLA-DRB1SE) and anti-citrullinated protein autoantibodies (ACPAs). ACPAs precedes the onset of clinical and subclinical RA. There are strong data for three infectious agents as autoimmunity triggers in RA, namely Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans causes of periodontal disease (PD), and Epstein-Barr virus (EBV). P. gingivalis expresses arginine gingipains, that cleave proteins at the arginine residues, and peptidyl arginine deiminase (PPAD), which citrullinates arginine residues of proteins, thus forming neoantigens that lead to ACPA production. Peripheral blood plasmablasts from ACPA+RA patients produce ACPAs the majority of which react against P. gingivalis. A. actinocycetemcomitans produces leukotoxin A, a toxin that forms pores in the neutrophil membranes and leads to citrullination and release of citrullinated autoantigens in the gums. EBV can infect B cells and epithelial cells and resides as latent infection in resting B cells. Abs against citrullinated peptides derived from EBV nuclear antigen appear years before RA and cross-react with human citrullinated fibrin. Citrullinated proteins are potential arthritogenic autoantigens in RA. The conversion of arginine to citrulline increases the peptide binding affinity to HLA-DRB1SE. Also, citrullinated fibrinogen induces arthritis in HLA-DRB1*0401 transgenic mice, and transfer of their splenic T cells causes arthritis to recipient mice. PMID- 29033913 TI - Biochemical Function, Molecular Structure and Evolution of an Atypical Thioredoxin Reductase from Desulfovibrio vulgaris. AB - Thioredoxin reductase (TR) regulates the intracellular redox environment by reducing thioredoxin (Trx). In anaerobes, recent findings indicate that the Trx redox network is implicated in the global redox regulation of metabolism but also actively participates in protecting cells against O2. In the anaerobe Desulfovibrio vulgaris Hildenborough (DvH), there is an intriguing redundancy of the Trx system which includes a classical system using NADPH as electron source, a non-canonical system using NADH and an isolated TR (DvTRi). The functionality of DvTRi was questioned due to its lack of reactivity with DvTrxs. Structural analysis shows that DvTRi is a NAD(P)H-independent TR but its reducer needs still to be identified. Moreover, DvTRi reduced by an artificial electron source is able to reduce in turn DvTrx1 and complexation experiments demonstrate a direct interaction between DvTRi and DvTrx1. The deletion mutant tri exhibits a higher sensitivity to disulfide stress and the gene tri is upregulated by O2 exposure. Having DvTRi in addition to DvTR1 as electron source for reducing DvTrx1 must be an asset to combat oxidative stress. Large-scale phylogenomics analyses show that TRi homologs are confined within the anaerobes. All TRi proteins displayed a conserved TQ/NGK motif instead of the HRRD motif, which is selective for the binding of the 2'-phosphate group of NADPH. The evolutionary history of TRs indicates that tr1 is the common gene ancestor in prokaryotes, affected by both gene duplications and horizontal gene events, therefore leading to the appearance of TRi through subfunctionalization over the evolutionary time. PMID- 29033915 TI - Evaluation of the Swabbing of Disposable Absorbent Incontinence Products for Assessing the Carriage of Multiresistant Enterobacteriaceae in Nursing Home Residents. AB - We compared the performance of incontinence product (IP) and rectal swabbing for the detection of multidrug-resistant Enterobacteriaceae (MDRE) carriage in a large multicenter study conducted in February 2017 among the residents of 23 French nursing homes. The study included 547 residents who habitually wore IP, 88 of whom were MDRE carriers (16.1%). Positive results were obtained for both rectal and IP swabs for 64 of these residents, for rectal swabs only for 22 and for IP swabs only for two of these patients. The estimated prevalence of MDRE carriage depended on the type of sample: 15.7% for rectal swabs and 12.1% for IP swabs (p < 0.001). The positive percent agreement was 84.2% and the negative percent agreement was 97.4%. Rectal swabbing remains the best method for detecting MDRE carriage in elderly residents, but our findings provide support for the use of swabs from IP used overnight to increase response rates in MDRE surveys in elderly residents that habitually wear IP, when rectal swabbing is not feasible. PMID- 29033916 TI - Contribution of Ruminal Fungi, Archaea, Protozoa, and Bacteria to the Methane Suppression Caused by Oilseed Supplemented Diets. AB - Dietary lipids can suppress methane emission from ruminants, but effects are variable. Especially the role of bacteria, archaea, fungi and protozoa in mediating the lipid effects is unclear. In the present in vitro study, archaea, fungi and protozoa were selectively inhibited by specific agents. This was fully or almost fully successful for fungi and protozoa as well as archaeal activity as determined by the methyl-coenzyme M reductase alpha subunit gene. Five different microbial treatments were generated: rumen fluid being intact (I), without archaea (-A), without fungi (-F), without protozoa (-P) and with bacteria only ( AFP). A forage-concentrate diet given alone or supplemented with crushed full-fat oilseeds of either safflower (Carthamus tinctorius) or poppy (Papaver somniferum) or camelina (Camelina sativa) at 70 g oil kg-1 diet dry matter was incubated. This added up to 20 treatments with six incubation runs per treatment. All oilseeds suppressed methane emission compared to the non-supplemented control. Compared to the non-supplemented control, -F decreased organic matter (OM) degradation, and short-chain fatty acid concentration was greater with camelina and safflower seeds. Methane suppression per OM digested in -F was greater with camelina seeds (-12 vs.-7% with I, P = 0.06), but smaller with poppy seeds (-4 vs. -8% with I, P = 0.03), and not affected with safflower seeds. With -P, camelina seeds decreased the acetate-to-propionate ratio and enhanced the methane suppression per gram dry matter (18 vs. 10% with I, P = 0.08). Hydrogen recovery was improved with -P in any oilseeds compared to non-supplemented control. No methane emission was detected with the -A and -AFP treatments. In conclusion, concerning methanogenesis, camelina seeds seem to exert effects only on archaea and bacteria. By contrast, with safflower and poppy seeds methane was obviously reduced mainly through the interaction with protozoa or archaea associated with protozoa. This demonstrated that the microbial groups differ in their contribution to the methane suppressing effect dependent on the source of lipid. These findings help to understand how lipid supplementation and microbial groups interact, and thus may assist in making this methane mitigation tool more efficient, but await confirmation in vivo. PMID- 29033917 TI - Newly Isolated Bacteriophages from the Podoviridae, Siphoviridae, and Myoviridae Families Have Variable Effects on Putative Novel Dickeya spp. AB - Soft rot pathogenic bacteria from the genus Dickeya cause severe economic losses in orchid nurseries worldwide, and there is no effective control currently available. In the last decade, the genus Dickeya has undergone multiple changes as multiple new taxa have been described, and just recently a new putative Dickeya species was reported. This study reports the isolation of three bacteriophages active against putative novel Dickeya spp. isolates from commercially produced infected orchids that show variable host-range profiles. Bacteriophages were isolated through enrichment from Dickeya-infected orchid tissue. Convective interaction media monolith chromatography was used to isolate bacteriophages from wastewaters, demonstrating its suitability for the isolation of infective bacteriophages from natural sources. Based on bacteriophage morphology, all isolated bacteriophages were classified as being in the order Caudovirales, belonging to three different families, Podoviridae, Myoviridae, and Siphoviridae. The presence of three different groups of bacteriophages was confirmed by analyzing the bacteriophage specificity of bacterial hosts, restriction fragment length polymorphism and plaque morphology. Bacteriophage BF25/12, the first reported Podoviridae bacteriophage effective against Dickeya spp., was selected for further characterization. Its genome sequence determined by next-generation sequencing showed limited similarity to other characterized Podoviridae bacteriophages. Interactions among the bacteriophages and Dickeya spp. were examined using transmission electron microscopy, which revealed degradation of electron-dense granules in response to bacteriophage infection in some Dickeya strains. The temperature stability of the chosen Podoviridae bacteriophage monitored over 1 year showed a substantial decrease in the survival of bacteriophages stored at -20 degrees C over longer periods. It showed susceptibility to low pH and UV radiation but was stable in neutral and alkaline pH. Furthermore, the stability of the tested bacteriophage was also connected to the incubation medium and bacteriophage concentration at certain pH values. Finally, the emergence of bacteriophage-resistant bacterial colonies is highly connected to the concentration of bacteriophages in the bacterial environment. This is the first report on bacteriophages against Dickeya from the Podoviridae family to expand on potential bacteriophages to include in bacteriophage cocktails as biocontrol agents. Some of these bacteriophage isolates also showed activity against Dickeya solani, an aggressive strain that causes the soft rot of potatoes, which indicates their broad potential as biocontrol agents. PMID- 29033918 TI - DNA-Sequence Based Typing of the Cronobacter Genus Using MLST, CRISPR-cas Array and Capsular Profiling. AB - The Cronobacter genus is composed of seven species, within which a number of pathovars have been described. The most notable infections by Cronobacter spp. are of infants through the consumption of contaminated infant formula. The description of the genus has greatly improved in recent years through DNA sequencing techniques, and this has led to a robust means of identification. However some species are highly clonal and this limits the ability to discriminate between unrelated strains by some methods of genotyping. This article updates the application of three genotyping methods across the Cronobacter genus. The three genotyping methods were multilocus sequence typing (MLST), capsular profiling of the K-antigen and colanic acid (CA) biosynthesis regions, and CRISPR-cas array profiling. A total of 1654 MLST profiled and 286 whole genome sequenced strains, available by open access at the PubMLST Cronobacter database, were used this analysis. The predominance of C. sakazakii and C. malonaticus in clinical infections was confirmed. The majority of clinical strains being in the C. sakazakii clonal complexes (CC) 1 and 4, sequence types (ST) 8 and 12 and C. malonaticus ST7. The capsular profile K2:CA2, previously proposed as being strongly associated with C. sakazakii and C. malonaticus isolates from severe neonatal infections, was also found in C. turicensis, C. dublinensis and C. universalis. The majority of CRISPR-cas types across the genus was the I-E (Ecoli) type. Some strains of C. dublinensis and C. muytjensii encoded the I-F (Ypseudo) type, and others lacked the cas gene loci. The significance of the expanding profiling will be of benefit to researchers as well as governmental and industrial risk assessors. PMID- 29033919 TI - Adaptation of Methanogenic Inocula to Anaerobic Digestion of Maize Silage. AB - A well-balanced microbial consortium is crucial for efficient biogas production. In turn, one of a major factor that influence on the structure of anaerobic digestion (AD) consortium is a source of microorganisms which are used as an inoculum. This study evaluated the influence of inoculum sources (with various origin) on adaptation of a biogas community and the efficiency of the biomethanization of maize silage. As initial inocula for AD of maize silage the samples from: (i) an agricultural biogas plant (ABP) which utilizes maize silage as a main substrate, (ii) cattle slurry (CS), which contain elevated levels of lignocelluloses materials, and (iii) raw sewage sludge (RSS) with low content of plant origin materials were used. The adaptation of methanogenic consortia was monitored during a series of passages, and the functionality of the adapted consortia was verified through start-up operation of AD in two-stage reactors. During the first stages of the adaptation phase, methanogenic consortia occurred very slowly, and only after several passages did the microbial community adapts to allow production of biogas with high methane content. The ABP consortium revealed highest biogas production in the adaptation and in the start-up process. The biodiversity dynamics monitored during adaptation and start-up process showed that community profile changed in a similar direction in three studied consortia. Native communities were very distinct to each other, while at the end of the Phase II of the start-up process microbial diversity profile was similar in all consortia. All adopted bacterial communities were dominated by representatives of Porphyromonadaceae, Rikenellaceae, Ruminococcaceae, and Synergistaceae. A shift from low acetate-preferring acetoclastic Methanosaetaceae (ABP and RSS) and/or hydrogenotrophic Archaea, e.g., Methanomicrobiaceae (CS) prevailing in the inoculum samples to larger populations of high acetate-preferring acetoclastic Methanosarcinaceae was observed by the end of the experiment. As a result, three independent, functional communities that syntrophically produced methane from acetate (primarily) and H2/CO2, methanol and methylamines were adapted. This study provides new insights into the specific process by which different inocula sampled from typical methanogenic environments that are commonly used to initiate industrial installations gradually adapted to allow biogas production from maize silage. PMID- 29033922 TI - Endophytic Bacteria Improve Plant Growth, Symbiotic Performance of Chickpea (Cicer arietinum L.) and Induce Suppression of Root Rot Caused by Fusarium solani under Salt Stress. AB - Salinity causes disturbance in symbiotic performance of plants, and increases susceptibility of plants to soil-borne pathogens. Endophytic bacteria are an essential determinant of cross-tolerance to biotic and abiotic stresses in plants. The aim of this study was to isolate non-rhizobial endophytic bacteria from the root nodules of chickpea (Cicer arietinum L.), and to assess their ability to improve plant growth and symbiotic performance, and to control root rot in chickpea under saline soil conditions. A total of 40 bacterial isolates from internal root tissues of chickpea grown in salinated soil were isolated. Four bacterial isolates, namely Bacillus cereus NUU1, Achromobacter xylosoxidans NUU2, Bacillus thuringiensis NUU3, and Bacillus subtilis NUU4 colonizing root tissue demonstrated plant beneficial traits and/or antagonistic activity against F. solani and thus were characterized in more detail. The strain B. subtilis NUU4 proved significant plant growth promotion capabilities, improved symbiotic performance of host plant with rhizobia, and promoted yield under saline soil as compared to untreated control plants under field conditions. A combined inoculation of chickpea with M. ciceri IC53 and B. subtilis NUU4 decreased H2O2 concentrations and increased proline contents compared to the un-inoculated plants indicating an alleviation of adverse effects of salt stress. Furthermore, the bacterial isolate was capable to reduce the infection rate of root rot in chickpea caused by F. solani. This is the first report of F. solani causing root rot of chickpea in a salinated soil of Uzbekistan. Our findings demonstrated that the endophytic B. subtilis strain NUU4 provides high potentials as a stimulator for plant growth and as biological control agent of chickpea root rot under saline soil conditions. These multiple relationships could provide promising practical approaches to increase the productivity of legumes under salt stress. PMID- 29033921 TI - Influence of Oral and Gut Microbiota in the Health of Menopausal Women. AB - Sex differences in gut microbiota are acknowledged, and evidence suggests that gut microbiota may have a role in higher incidence and/or severity of autoimmune diseases in females. Additionally, it has been suggested that oral, vaginal, and gut microbiota composition can be regulated by estrogen levels. The association of vaginal microbiota with vulvovaginal atrophy at menopause is well described in the literature. However, the relevance of oral and gut microbiota modulation in the immune system during estrogen deficiency and its effect on inflammatory diseases is not well explored. Estrogen deficiency is a condition that occurs in menopausal women, and it can last approximately 30 years of a woman's life. The purpose of this mini- review is to highlight the importance of alterations in the oral and gut microbiota during estrogen deficiency and their effect on oral and inflammatory diseases that are associated with menopause. Considering that hormone replacement therapy is not always recommended or sufficient to prevent or treat menopause-related disease, we will also discuss the use of probiotics and prebiotics as an option for the prevention or treatment of these diseases. PMID- 29033920 TI - DNA Repair and Photoprotection: Mechanisms of Overcoming Environmental Ultraviolet Radiation Exposure in Halophilic Archaea. AB - Halophilic archaea push the limits of life at several extremes. In particular, they are noted for their biochemical strategies in dealing with osmotic stress, low water activity and cycles of desiccation in their hypersaline environments. Another feature common to their habitats is intense ultraviolet (UV) radiation, which is a challenge that microorganisms must overcome. The consequences of high UV exposure include DNA lesions arising directly from bond rearrangement of adjacent bipyrimidines, or indirectly from oxidative damage, which may ultimately result in mutation and cell death. As such, these microorganisms have evolved a number of strategies to navigate the threat of DNA damage, which we differentiate into two categories: DNA repair and photoprotection. Photoprotection encompasses damage avoidance strategies that serve as a "first line of defense," and in halophilic archaea include pigmentation by carotenoids, mechanisms of oxidative damage avoidance, polyploidy, and genomic signatures that make DNA less susceptible to photodamage. Photolesions that do arise are addressed by a number of DNA repair mechanisms that halophilic archaea efficiently utilize, which include photoreactivation, nucleotide excision repair, base excision repair, and homologous recombination. This review seeks to place DNA damage, repair, and photoprotection in the context of halophilic archaea and the solar radiation of their hypersaline environments. We also provide new insight into the breadth of strategies and how they may work together to produce remarkable UV-resistance for these microorganisms. PMID- 29033924 TI - Rethinking Tertiary Models: Relationships between Growth Parameters of Bacillus cereus Strains. AB - The maximum specific growth rates of 12 strains, pair-wise belonging to six groups of Bacillus cereus sensu lato, were fitted against temperature by a reparametrized version of the model of Ratkowsky et al. (1983). This way, the interpretation of the new parameter set was similar to that of the cardinal values-model of Rosso and Robinson (2001), both models including the minimum, optimum and maximum temperatures for growth as well as a fourth parameter scaling along the dependent variable. The modularity of the reparametrized version of the Ratkowsky model was utilized to show a so-far undetected relationship between this scaling parameter and the cardinal temperatures, which linked even distant (e.g., mesophilic and psychotropic) strains of B. cereus. We propose that the name "tertiary modeling" should be used for investigations like ours, as logically derived from the concepts of "primary" and "secondary" modeling. Such tertiary models may reveal biological relationships between kinetic parameters within a group of strains. It can also be used to create an overarching predictive model for mixed cultures, when different strains grow together but independently of each other. PMID- 29033923 TI - Emerging Trends in "Smart Probiotics": Functional Consideration for the Development of Novel Health and Industrial Applications. AB - The link between gut microbiota and human health is well-recognized and described. This ultimate impact on the host has contributed to explain the mutual dependence between humans and their gut bacteria. Gut microbiota can be manipulated through passive or active strategies. The former includes diet, lifestyle, and environment, while the latter comprise antibiotics, pre- and probiotics. Historically, conventional probiotic strategies included a phylogenetically limited diversity of bacteria and some yeast strains. However, biotherapeutic strategies evolved in the last years with the advent of fecal microbiota transplant (FMT), successfully applied for treating CDI, IBD, and other diseases. Despite the positive outcomes, long-term effects resulting from the uncharacterized nature of FMT are not sufficiently studied. Thus, developing strategies to simulate the FMT, using characterized gut colonizers with identified phylogenetic diversity, may be a promising alternative. As the definition of probiotics states that the microorganism should have beneficial effects on the host, several bacterial species with proven efficacy have been considered next generation probiotics. Non-conventional candidate strains include Akkermansia muciniphila, Faecalibacterium prausnitzii, Bacteroides fragilis, and members of the Clostridia clusters IV, XIVa, and XVIII. However, viable intestinal delivery is one of the current challenges, due to their stringent survival conditions. In this review, we will cover current perspectives on the development and assessment of next generation probiotics and the approaches that industry and stakeholders must consider for a successful outcome. PMID- 29033925 TI - Caco-2 Invasion by Cronobacter sakazakii and Salmonella enterica Exposed to Drying and Heat Treatments in Dried State in Milk Powder. AB - Due to the ability of foodborne pathogens to survive in low moisture food, the decontamination of milk powder is an important issue in food protection. The safety of food products is, however, not always insured and the different steps in the processing of food involve physiological and metabolic changes in bacteria. Among these changes, virulence properties may also be affected. In this study, the effect of drying and successive thermal treatments on the invasion capacity of Salmonella Typhimurium, Salmonella Senftenberg, and Cronobacter sakazakii was assessed. Bacteria were dried on milk powder at three different water activity levels (0.25, 0.58, and 0.80) and heated at two different temperatures (90 degrees C and 100 degrees C) for 30 and 120 s. After recovery, stressed bacterial populations were placed in contact with Caco-2 cells to estimate their invasion capacity. Our results show that drying increases the invasion capacity of foodborne pathogens, but that heat treatment in the dried state did not exert a selective pressure on bacterial cells depending on their invasion capacity after drying. Taken together, our findings add to the sum of knowledge on food safety in dried food products and provide insight into the effects of food processing. PMID- 29033927 TI - Editorial: Mycoplasma pneumoniae Clinical Manifestations, Microbiology, and Immunology. PMID- 29033926 TI - MicroRNAs in Taenia solium Neurocysticercosis: Insights as Promising Agents in Host-Parasite Interaction and Their Potential as Biomarkers. AB - MicroRNAs (miRNAs) are short, endogenous, non-coding, single-stranded RNAs involved in post-transcriptional gene regulation. Although, several miRNAs have been identified in parasitic helminths, there is little information about their identification and function in Taenia. Furthermore, the impact of miRNAs in neurocysticercosis, the brain infection caused by larvae of Taenia solium is still unknown. During chronic infection, T. solium may activate numerous mechanisms aimed to modulate host immune responses. Helminthic miRNAs might also have effects on host mRNA expression and thus play an important role regulating host-parasite interactions. Also, the diagnosis of this disease is difficult and it usually requires neuroimaging and confirmatory serology. Since miRNAs are stable when released, they can be detected in body fluids and therefore have potential to diagnose infection, determine parasite burden, and ascertain effectiveness of treatment or disease progression, for instance. This review discusses the potential roles of miRNAs in T. solium infection, including regulation of host-parasite relationships and their eventual use as diagnostic or disease biomarkers. Additionally, we summarize the bioinformatics resources available for identification of T. solium miRNAs and prediction of their targets. PMID- 29033928 TI - Unexpectedly High Prevalence of Common Variable Immunodeficiency in Finland. AB - BACKGROUND: Common variable immunodeficiency (CVID) is the most common primary immunodeficiency. Prevalence varies greatly between countries and studies. Most diagnostic criteria include hypogammaglobulinemia and impaired vaccine response. AIM: To evaluate the minimum prevalence as well as the clinical and immunological phenotypes of CVID in Southern Finland. METHODS: We performed a cross-sectional study to assess all adult CVID patients followed up in three hospital districts in Southern and South-Eastern Finland between April 2007 and August 2015. CVID diagnosis was based, with a minor modification, on the ESID/PAGID criteria for primary CVID. Antipolysaccharide responses to Pneumovax(r) were defined as impaired only if 50% or more of the serotypes did not reach a level of 0.35 ug/mL after vaccination. We further characterized the patients' B cell phenotypes and complications associated with CVID. RESULTS: In total, 9 patients were excluded due to potential secondary causes before diagnosis. ESID/PAGID criteria were met by 132 patients (males 52%), of whom, 106 had "probable" and 26 "possible CVID." Based on the population statistics in the three hospital districts, the minimum adult prevalence per 100,000 inhabitants in Finland for all CVID ("probable CVID," respectively) patients was 6.9 (5.5). In the highest prevalence district (Helsinki and Uusimaa), the prevalence was 7.7 (6.1). CVID patients suffer from frequent complications. Ten patients died during follow-up. Of probable CVID patients, 73% had more than one clinical phenotype. Intriguingly, gradual B cell loss from peripheral blood during follow-up was seen in as many as 16% of "probable CVID" patients. Patients with possible CVID displayed somewhat milder clinical and laboratory phenotypes than probable CVID patients. We also confirm that large granular lymphocyte lymphoproliferation is a CVID-associated complication. CONCLUSION: The prevalence of CVID in Finland appears the highest recorded, likely reflecting the genetic isolation and potential founder effects in the Finnish population. Studies to discover potential gene variants responsible for the high prevalence in Finland thus seem warranted. Increased awareness of CVID among physicians would likely lead to earlier diagnosis and improved quality of care. PMID- 29033932 TI - From Cocoa to Chocolate: The Impact of Processing on In Vitro Antioxidant Activity and the Effects of Chocolate on Antioxidant Markers In Vivo. AB - Chocolate is a product processed from cocoa rich in flavonoids, antioxidant compounds, and bioactive ingredients that have been associated with both its healthy and sensory properties. Chocolate production consists of a multistep process which, starting from cocoa beans, involves fermentation, drying, roasting, nib grinding and refining, conching, and tempering. During cocoa processing, the naturally occurring antioxidants (flavonoids) are lost, while others, such as Maillard reaction products, are formed. The final content of antioxidant compounds and the antioxidant activity of chocolate is a function of several variables, some related to the raw material and others related to processing and formulation. The aim of this mini-review is to revise the literature on the impact of full processing on the in vitro antioxidant activity of chocolate, providing a critical analysis of the implications of processing on the evaluation of the antioxidant effect of chocolate in in vivo studies in humans. PMID- 29033933 TI - Monocyte Chemotactic Protein 1 in Plasma from Soluble Leishmania Antigen Stimulated Whole Blood as a Potential Biomarker of the Cellular Immune Response to Leishmania infantum. AB - New biomarkers are needed to identify asymptomatic Leishmania infection as well as immunity following vaccination or treatment. With the aim of finding a robust biomarker to assess an effective cellular immune response, monocyte chemotactic protein 1 (MCP-1) was examined in plasma from soluble Leishmania antigen (SLA) stimulated whole blood collected from subjects living in a Leishmania infantum endemic area. MCP-1, expressed 110 times more strongly than IL-2, identified 87.5% of asymptomatic subjects and verified some asymptomatic subjects close to the cutoff. MCP-1 was also significantly elevated in all patients cured of visceral leishmaniasis (VL), unlike IL-2, indicating the specific memory response generated against Leishmania. These results show MCP-1 to be a robust candidate biomarker of immunity that could be used as a marker of cure and to both select and follow the population in vaccine phase I-III human clinical trials with developed rapid, easy-to-use field tools. PMID- 29033930 TI - Immunomodulatory Effects of Calcium and Strontium Co-Doped Titanium Oxides on Osteogenesis. AB - The effects of calcium (Ca) or strontium (Sr) on host osteogenesis and immune responses have been investigated separately. In clinical practice, these two elements may both be present around an orthopedic device, but their potential synergistic effects on osteogenesis and the immune response have not been explored to date. In this work, we investigated the immunomodulatory effects of Ca and Sr co-doped titanium oxides on osteogenesis in vitro using the mouse macrophage cell line RAW 264.7 alone and in co-culture with mouse bone mesenchymal stem cells (BMSCs), and in vivo using a mouse air-pouch model. Coatings containing Ca and Sr at different concentration ratios were fabricated on titanium substrates using micro-arc oxidation and electrochemical treatment. The in vitro and in vivo results demonstrated that the Ca and Sr concentration ratio has a marked influence on macrophage polarization. The coating with a Ca/Sr ratio of 2:1 was superior to those with other Ca and/or Sr concentrations in terms of modulating M2 polarization, which enhanced osteogenic differentiation of mouse BMSCs in co-culture. These findings suggest that the osteoimmunomodulatory effect of a titanium-oxide coating can be enhanced by modulating the concentration ratio of its components. PMID- 29033929 TI - Immunity and Fibrogenesis: The Role of Th17/IL-17 Axis in HBV and HCV-induced Chronic Hepatitis and Progression to Cirrhosis. AB - Cirrhosis is a common final pathway for most chronic liver diseases; representing an increasing burden worldwide and is associated with increased morbidity and mortality. Current evidence has shown that, after an initial injury, the immune response has a significant participation in the ongoing damage, and progression from chronic viral hepatitis (CVH) to cirrhosis, driving the activation and maintenance of main fibrogenic pathways. Among immune deregulations, those related to the subtype 17 of T helper lymphocytes (Th17)/interleukin-17 (IL-17) axis have been recognized as key immunopathological and prognostic elements in patients with CVH. The Th17/IL-17 axis has been found involved in several points of fibrogenesis chain from the activation of stellate cells, increased expression of profibrotic factors as TGF-beta, promotion of the myofibroblastic or epithelial-mesenchymal transition, stimulation of the synthesis of collagen, and induction of imbalance between matrix metalloproteinases and tissue inhibitors of metalloproteinases (TIMPs). It also promotes the recruitment of inflammatory cells and increases the expression of proinflammatory cytokines such as IL-6 and IL-23. So, the Th17/IL-17 axis is simultaneously the fuel and the flame of a sustained proinflammatory and profibrotic environment. This work aims to present the immunopathologic and prognostic role of the Th17/IL-17 axis and related pathways in fibrogenesis and progression to cirrhosis in patients with liver disease due to hepatitis B virus (HBV) and hepatitis C virus (HCV). PMID- 29033931 TI - Plasmodium berghei NK65 in Combination with IFN-gamma Induces Endothelial Glucocorticoid Resistance via Sustained Activation of p38 and JNK. AB - Malaria-associated acute respiratory distress syndrome (MA-ARDS) is an often lethal complication of malaria. Currently, no adequate therapy for this syndrome exists. Although glucocorticoids (GCs) have been used to improve clinical outcome of ARDS, their therapeutic benefits remain unclear. We previously developed a mouse model of MA-ARDS, in which dexamethasone treatment revealed GC resistance. In the present study, we investigated GC sensitivity of mouse microvascular lung endothelial cells stimulated with interferon-gamma (IFN-gamma) and Plasmodium berghei NK65 (PbNK65). Upon challenge with IFN-gamma alone, dexamethasone inhibited the expression of CCL5 (RANTES) by 90% and both CCL2 (MCP-1) and CXCL10 (IP-10) by 50%. Accordingly, whole transcriptome analysis revealed that dexamethasone differentially affected several gene clusters and in particular inhibited a large cluster of IFN-gamma-induced genes, including chemokines. In contrast, combined stimulation with IFN-gamma and PbNK65 extract impaired inhibitory actions of GCs on chemokine release, without affecting the capacity of the GC receptor to accumulate in the nucleus. Subsequently, we investigated the effects of GCs on two signaling pathways activated by IFN-gamma. Dexamethasone left phosphorylation and protein levels of signal transducer and activator of transcription 1 (STAT1) unhampered. In contrast, dexamethasone inhibited the IFN gamma-induced activation of two mitogen-activated protein kinases (MAPK), JNK, and p38. However, PbNK65 extract abolished the inhibitory effects of GCs on MAPK signaling, inducing GC resistance. These data provide novel insights into the mechanisms of GC actions in endothelial cells and show how malaria may impair the beneficial effects of GCs. PMID- 29033934 TI - Ebi3 Prevents Trypanosoma cruzi-Induced Myocarditis by Dampening IFN-gamma-Driven Inflammation. AB - The identification of anti-inflammatory mediators can reveal important targetable molecules capable of counterbalancing Trypanosoma cruzi-induced myocarditis. Composed of Ebi3 and IL-27p28 subunits, IL-27 is produced by myeloid cells and is able to suppress inflammation by inducing IL-10-producing Tr1 cells, thus emerging as a potential candidate to ameliorate cardiac inflammation induced by T. cruzi. Although IL-27 has been extensively characterized as a suppressive cytokine that prevents liver immunopathogenesis after T. cruzi infection, the mechanisms underlying its effects on T. cruzi-induced myocarditis remain largely unknown. Here, wild-type (WT) and Ebi3-deficient animals were intraperitoneally infected with trypomastigotes of T. cruzi Y strain and used to evaluate the potential anti-inflammatory properties of Ebi3 during T. cruzi infection. The survival rates of mice were daily recorded, the frequency of inflammatory cells was analyzed by flow cytometry and inflammatory mediators were measured by ELISA, real-time PCR and PCR array. We reported that T. cruzi-induced myocarditis was prevented by Ebi3. Stressors mainly recognized by TLR2 and TLR4 receptors on myeloid cells were essential to trigger IL-27p28 production. In addition, Ebi3 regulated IFN-gamma-mediated myocarditis by promoting an anti-inflammatory environment through IL-10, which was most likely produced by Tr1 cells rather than classical regulatory T cells (Tregs), in the heart tissue of T. cruzi infected animals. Furthermore, in vivo IFN-gamma blockade ameliorated the host survival without compromising the parasite control in the bloodstream. In humans, IL-27p28 was correlated with cardiac protection during Chagas disease. Patients with mild clinical forms of the disease produced high levels of IL-27p28, whereas lower levels were found in those with severe forms. In addition, polymorphic sites at Ebi3 gene were associated with severe cardiomyopathy in patients with Chagas disease. Collectively, we describe a novel regulatory mechanism where Ebi3 dampens cardiac inflammation by modulating the overproduction of IFN-gamma, the bona fide culprit of Chagas disease cardiomyopathy. PMID- 29033937 TI - Commentary: CD6 As a Potential Target for Treating Multiple Sclerosis. PMID- 29033935 TI - Cannabinoid Receptor 1 Participates in Liver Inflammation by Promoting M1 Macrophage Polarization via RhoA/NF-kappaB p65 and ERK1/2 Pathways, Respectively, in Mouse Liver Fibrogenesis. AB - : Macrophage M1/M2 polarization mediates tissue damage and inflammatory responses. Cannabinoid receptor (CB) 1 participated in liver fibrogenesis by affecting bone marrow (BM)-derived monocytes/macrophages (BMMs) activation. However, the knowledge of whether CB1 is involved in the polarization of BMMs remains limited. Here, we found M1 gene signatures (including CD86, MIP-1beta, tumor necrosis factor, IL-6, and inducible nitric oxide synthase) and the amount of M1 macrophages (CD86+ cells, gated by F4/80) were significantly elevated in carbon tetrachloride (CCl4)-induced mouse injured livers, while that of M2 type macrophages had little change by RT-qPCR and fluorescence-activated cell sorting (FACS). Our preceding study confirmed CB1 was involved in CCl4-induced liver fibrogenesis. Our results noted CB1 expression showed positive correlation with CD86. Blockade of CB1 by its antagonist or siRNA in vivo downregulated the mRNA and protein levels of M1 markers using RT-qPCR, western blot, and Cytometric Bead Array (CBA) assays, and reduced the proportion of M1 macrophages. Moreover, chimera mouse models, which received BM transplants from EGFP-transgenic mice or clodronate liposome injection mouse models, in which Kupffer cells were depleted, were performed to clarify the role of CB1 on the polarization of Kupffer cells and BMMs. We found that CB1 was especially involved in BMM polarization toward M1 phenotype but have no effect on that of Kupffer cells. The reason might due to the lower CB1 expression in Kupffer cells than that of BMMs. In vitro, we discovered CB1 was involved in the polarization of BMMs toward M1. Furthermore, CB1-induced M1 polarization was apparently impaired by PTX [G(alpha)i/o protein inhibitor], Y27632 (ROCK inhibitor), and PD98059 [extracellular signal-regulated kinase (ERK) inhibitor], while SB203580 (p38 inhibitor) and compound C (AMPK inhibitor) had no such effect. ACEA (CB1 agonist) activated G(alpha)i/o coupled CB1, then enlarged GTP-bound Rho and phosphor-ERK1/2, independently. NF-kappaB p65 nuclear translocation is also a marker of M1 phenotype macrophages. We found that CB1 switched on NF-kappaB p65 nuclear translocation only depending on G(alpha)i/o/RhoA signaling pathway. CONCLUSION: CB1 plays a crucial role in regulating M1 polarization of BMMs in liver injury, depending on two independent signaling pathways: G(alpha)i/o/RhoA/NF-kappaB p65 and G(alpha)i/o/ERK1/2 pathways. PMID- 29033938 TI - Early-Life Nutritional Factors and Mucosal Immunity in the Development of Autoimmune Diabetes. AB - Type 1 diabetes (T1D) is an immune-mediated disease with a strong genetic basis but might be influenced by non-genetic factors such as microbiome development that "programs" the immune system during early life as well. Factors influencing pathogenesis, including a leaky intestinal mucosal barrier, an aberrant gut microbiota composition, and altered immune responsiveness, offer potential targets for prevention and/or treatment of T1D through nutritional or pharmacologic means. In this review, nutritional approaches during early life in order to protect against T1D development have been discussed. The critical role of tolerogenic dendritic cells in central and peripheral tolerance has been emphasized. In addition, since the gut microbiota affects the development of T1D through short-chain fatty acid (SCFA)-dependent mechanisms, we hypothesize that nutritional intervention boosting SCFA production may be used as a novel prevention strategy. Current retrospective evidence has suggested that exclusive and prolonged breastfeeding might play a protective role against the development of T1D. The beneficial properties of human milk are possibly attributed to its bioactive components such as unique immune-modulatory components human milk oligosaccharides and metabolites derived thereof, including SCFAs. These components might play a key role in healthy immune development and creating a fit and resilient immune system in early and later life. PMID- 29033936 TI - Coinhibitory Receptor Expression and Immune Checkpoint Blockade: Maintaining a Balance in CD8+ T Cell Responses to Chronic Viral Infections and Cancer. AB - In cancer and chronic viral infections, T cells are exposed to persistent antigen stimulation. This results in expression of multiple inhibitory receptors also called "immune checkpoints" by T cells. Although these inhibitory receptors under normal conditions maintain self-tolerance and prevent immunopathology, their sustained expression deteriorates T cell function: a phenomenon called exhaustion. Recent advances in cancer immunotherapy involve blockade of cytotoxic T lymphocyte antigen-4 and programmed cell death 1 in order to reverse T cell exhaustion and reinvigorate immunity, which has translated to dramatic clinical remission in many cases of metastatic melanoma and lung cancer. With the paucity of therapeutic vaccines against chronic infections such as HIV, HPV, hepatitis B, and hepatitis C, such adjunct checkpoint blockade strategies are required including the blockade of other inhibitory receptors such as T cell immunoreceptor with immunoglobulin (Ig) and immunoreceptor tyrosine-based inhibitory motif domains, T cell Ig and mucin-domain containing-3, lymphocyte activation gene 3, and V-domain Ig-containing suppressor of T cell activation. The nature of different chronic viral infections and cancers is likely to influence the level, composition, and pattern of inhibitory receptors expressed by responding T cells. This will have implications for checkpoint antibody blockade strategies employed for treating tumors and chronic viral infections. Here, we review recent advances that provide a clearer insight into the role of coinhibitory receptor expression in T cell exhaustion and reveal novel antibody blockade therapeutic targets for chronic viral infections and cancer. Understanding the mechanism of T cell exhaustion in response to chronic virus infections and cancer as well as the nature of restored T cell responses will contribute to further improvement of immune checkpoint blockade strategies. PMID- 29033939 TI - Induction of Apoptosis and Subsequent Phagocytosis of Virus-Infected Cells As an Antiviral Mechanism. AB - Viruses are infectious entities that hijack host replication machineries to produce their progeny, resulting, in most cases, in disease and, sometimes, in death in infected host organisms. Hosts are equipped with an array of defense mechanisms that span from innate to adaptive as well as from humoral to cellular immune responses. We previously demonstrated that mouse cells underwent apoptosis in response to influenza virus infection. These apoptotic, virus-infected cells were then targeted for engulfment by macrophages and neutrophils. We more recently reported similar findings in the fruit fly Drosophila melanogaster, which lacks adaptive immunity, after an infection with Drosophila C virus. In these experiments, the inhibition of phagocytosis led to severe influenza pathologies in mice and early death in Drosophila. Therefore, the induction of apoptosis and subsequent phagocytosis of virus-infected cells appear to be an antiviral innate immune mechanism that is conserved among multicellular organisms. We herein discuss the underlying mechanisms and significance of the apoptosis-dependent phagocytosis of virus-infected cells. Investigations on the molecular and cellular features responsible for this underrepresented virus-host interaction may provide a promising avenue for the discovery of novel substances that are targeted in medical treatments against virus-induced intractable diseases. PMID- 29033940 TI - PI3Kdelta Inhibition Enhances the Antitumor Fitness of Adoptively Transferred CD8+ T Cells. AB - Phosphatidylinositol-3-kinase p110delta (PI3Kdelta) inhibition by Idelalisib (CAL 101) in hematological malignancies directly induces apoptosis in cancer cells and disrupts immunological tolerance by depleting regulatory T cells. Yet, little is known about the direct impact of PI3Kdelta blockade on effector T cells from CAL 101 therapy. Herein, we demonstrate a direct effect of p110delta inactivation via CAL-101 on murine and human CD8+ T cells that promotes a strong undifferentiated phenotype (elevated CD62L/CCR7, CD127, and Tcf7). These CAL-101 T cells also persisted longer after transfer into tumor bearing mice in both the murine syngeneic and human xenograft mouse models. The less differentiated phenotype and improved engraftment of CAL-101 T cells resulted in stronger antitumor immunity compared to traditionally expanded CD8+ T cells in both tumor models. Thus, this report describes a novel direct enhancement of CD8+ T cells by a p110delta inhibitor that leads to markedly improved tumor regression. This finding has significant implications to improve outcomes from next generation cancer immunotherapies. PMID- 29033941 TI - Functional Analysis of Phagocyte Activity in Whole Blood from HIV/Tuberculosis Infected Individuals Using a Novel Flow Cytometry-Based Assay. AB - The accurate assessment of immune competence through ex vivo analysis is paramount to our understanding of those immune mechanisms that lead to protection or susceptibility against a broad range of human pathogens. We have developed a flow cytometry-based, whole blood phagocyte functional assay that utilizes the inflammatory inducer zymosan, coupled to OxyBURST-SE, a fluorescent reporter of phagosomal oxidase activity. The assay measures both phagocytic uptake and the superoxide burst in the phagocyte populations in whole blood. We utilized this assay to demonstrate impaired superoxide burst activity in the phagocytes of hospitalized HIV-positive patients with laboratory-confirmed tuberculosis. These data validate the use of the assay to assess the immune competence of patients in a clinical setting. The method is highly reproducible with minimal intraindividual variation and opens opportunities for the rapid assessment of cellular immune competence in peripheral blood in a disease setting. PMID- 29033942 TI - Mucosal Administration of Cycle-Di-Nucleotide-Adjuvanted Virosomes Efficiently Induces Protection against Influenza H5N1 in Mice. AB - The need for more effective influenza vaccines is highlighted by the emergence of novel influenza strains, which can lead to new pandemics. There is a growing population of susceptible subjects at risk for severe complications of influenza, such as the elderly who are only in part protected by current licensed seasonal vaccines. One strategy for improving seasonal and pandemic vaccines takes advantage of adjuvants to boost and modulate evoked immune responses. In this study, we examined the capacity of the recently described adjuvant cyclic di adenosine monophosphate (c-di-AMP) to serve as an adjuvant for improved mucosal influenza vaccines, and induce effective protection against influenza H5N1. In detail, c-di-AMP promoted (i) effective local and systemic humoral immune responses, including protective hemagglutination inhibition titers, (ii) effective cellular responses, including multifunctional T cell activity, (iii) induction of long-lasting immunity, and (iv) protection against viral challenge. Furthermore, we demonstrated the dose-sparing capacity of the adjuvant as well as the ability to evoke cross-clade protective immune responses. Overall, our results suggest that c-di-AMP contributes to the generation of a protective cell mediated immune response required for efficacious vaccination against influenza, which supports the further development of c-di-AMP as an adjuvant for seasonal and pandemic influenza mucosal vaccines. PMID- 29033943 TI - Human Immunodeficiency Virus 1 and Type I Interferons-Where Sex Makes a Difference. AB - The human immunodeficiency virus (HIV)-1 epidemic continues to represent a global health problem that is over-proportionally affecting women from sub-Saharan Africa. Besides social and environmental factors, the modulation of immunological pathways by sex hormones and gene dosage effects of X chromosomal-encoded genes have been suggested to lead to differential outcomes in HIV-1 disease. Women present with lower HIV-1 loads early in infection. However, the progression to AIDS for the same level of viremia is faster in women than in men. Type I interferons (IFNs) play a prominent role in the control of HIV-1 transmission and replication. Continuous stimulation of type I IFNs in chronic viral infections can lead to increased levels of immune activation, which can be higher in HIV-1 infected women than in men. A role of steroid hormone signaling in regulating viral replication has been postulated, which might further account for sex differences observed in HIV-1 infections. Here, we review recent findings and current knowledge on sex-specific differences in HIV-1 infections. PMID- 29033945 TI - Improved Efficacy of Oral Immunotherapy Using Non-Digestible Oligosaccharides in a Murine Cow's Milk Allergy Model: A Potential Role for Foxp3+ Regulatory T Cells. AB - BACKGROUND: Oral immunotherapy (OIT) is a promising therapeutic approach to treat food allergic patients. However, there are some concerns regarding its safety and long-term efficacy. The use of non-digestible oligosaccharides might improve OIT efficacy since they are known to directly modulate intestinal epithelial and immune cells in addition to acting as prebiotics. AIM: To investigate whether a diet supplemented with plant-derived fructo-oligosaccharides (FOS) supports the efficacy of OIT in a murine cow's milk allergy model and to elucidate the potential mechanisms involved. METHODS: After oral sensitization to the cow's milk protein whey, female C3H/HeOuJ mice were fed either a control diet or a diet supplemented with FOS (1% w/w) and received OIT (10 mg whey) 5 days a week for 3 weeks by gavage. Intradermal (i.d.) and intragastric (i.g.) challenges were performed to measure acute allergic symptoms and mast cell degranulation. Blood and organs were collected to measure antibody levels and T cell and dendritic cell populations. Spleen-derived T cell fractions (whole spleen- and CD25 depleted) were transferred to naive recipient mice to confirm the involvement of regulatory T cells (Tregs) in allergy protection induced by OIT + FOS. RESULTS: OIT + FOS decreased acute allergic symptoms and mast cell degranulation upon challenge and prevented the challenge-induced increase in whey-specific IgE as observed in sensitized mice. Early induction of Tregs in the mesenteric lymph nodes (MLN) of OIT + FOS mice coincided with reduced T cell responsiveness in splenocyte cultures. CD25 depletion in OIT + FOS-derived splenocyte suspensions prior to transfer abolished protection against signs of anaphylaxis in recipients. OIT + FOS increased serum galectin-9 levels. No differences in short chain fatty acid (SCFA) levels in the cecum were observed between the treatment groups. Concisely, FOS supplementation significantly improved OIT in the acute allergic skin response, %Foxp3+ Tregs and %LAP+ Th3 cells in MLN, and serum galectin-9 levels. CONCLUSION: FOS supplementation improved the efficacy of OIT in cow's milk allergic mice. Increased levels of Tregs in the MLN and abolished protection against signs of anaphylaxis upon transfer of CD25-depleted cell fractions, suggest a role for Foxp3+ Tregs in the protective effect of OIT + FOS. PMID- 29033944 TI - Artificial Polysialic Acid Chains as Sialidase-Resistant Molecular-Anchors to Accumulate Particles on Neutrophil Extracellular Traps. AB - Neutrophils are involved in numerous immunological events. One mechanism of neutrophils to combat pathogens is the formation of neutrophil extracellular traps (NETs). Thereby, neutrophils use DNA fibers to form a meshwork of DNA and histones as well as several antimicrobial components to trap and kill invaders. However, the formation of NETs can lead to pathological conditions triggering among other things (e.g., sepsis or acute lung failure), which is mainly a consequence of the cytotoxic characteristics of accumulated extracellular histones. Interestingly, the carbohydrate polysialic acid represents a naturally occurring antagonist of the cytotoxic properties of extracellular histones. Inspired by polysialylated vesicles, we developed polysialylated nanoparticles. Since sialidases are frequently present in areas of NET formation, we protected the sensitive non-reducing end of these homopolymers. To this end, the terminal sialic acid residue of the non-reducing end was oxidized and directly coupled to nanoparticles. The covalently linked sialidase-resistant polysialic acid chains are still able to neutralize histone-mediated cytotoxicity and to initiate binding of these polysialylated particles to NET filaments. Furthermore, polysialylated fluorescent microspheres can be used as a bioanalytical tool to stain NET fibers. Thus, polySia chains might not only be a useful agent to reduce histone-mediated cytotoxicity but also an anchor to accumulate nanoparticles loaded with active substances in areas of NET formation. PMID- 29033946 TI - Exploitation of Scavenger Receptor, Macrophage Receptor with Collagenous Structure, by Cryptococcus neoformans Promotes Alternative Activation of Pulmonary Lymph Node CD11b+ Conventional Dendritic Cells and Non-Protective Th2 Bias. AB - Macrophage receptor with collagenous structure (MARCO) contributes to fungal containment during the early/innate phase of cryptococcal infection; however, its role in adaptive antifungal immunity remains unknown. Using a murine model of cryptococcosis, we compared host adaptive immune responses in wild-type and MARCO /- mice throughout an extended time course post-infection. Unlike in early infection, MARCO deficiency resulted in improved pulmonary fungal clearance and diminished cryptococcal dissemination during the efferent phase. Improved fungal control in the absence of MARCO expression was associated with enhanced hallmarks of protective Th1-immunity, including higher frequency of pulmonary TNF-alpha producing T cells, increased cryptococcal-antigen-triggered IFN-gamma and TNF alpha production by splenocytes, and enhanced expression of M1 polarization genes by pulmonary macrophages. Concurrently, we found lower frequencies of IL-5- and IL-13-producing T cells in the lungs, impaired production of IL-4 and IL-10 by cryptococcal antigen-pulsed splenocytes, and diminished serum IgE, which were hallmarks of profoundly suppressed efferent Th2 responses in MARCO-deficient mice compared to WT mice. Mechanistically, we found that MARCO expression facilitated early accumulation and alternative activation of CD11b+ conventional DC (cDC) in the lung-associated lymph nodes (LALNs), which contributed to the progressive shift of the immune response from Th1 toward Th2 at the priming site (LALNs) and local infection site (lungs) during the efferent phase of cryptococcal infection. Taken together, our study shows that MARCO can be exploited by the fungal pathogen to promote accumulation and alternative activation of CD11b+ cDC in the LALN, which in turn alters Th1/Th2 balance to promote fungal persistence and dissemination. PMID- 29033947 TI - Interferon-lambdas: Front-Line Guardians of Immunity and Homeostasis in the Respiratory Tract. AB - Type III interferons (IFNs), also termed lambda IFNs (IFNlambdas) or interleukins 28/29, constitute a new addition to the IFN family. They are induced upon infection and are particularly abundant at barrier surfaces, such as the respiratory and gastrointestinal tracts. Although they signal through a unique heterodimeric receptor complex comprising IFNLR1 and IL10RB, they activate a downstream signaling pathway remarkably similar to that of type I IFNs and share many functions with them. Yet, they also have important differences which are only now starting to unfold. Here, we review the current literature implicating type III IFNs in the regulation of immunity and homeostasis in the respiratory tract. We survey the common and unique characteristics of type III IFNs in terms of expression patterns, cellular targets, and biological activities and discuss their emerging role in first line defenses against respiratory viral infections. We further explore their immune modulatory functions and their involvement in the regulation of inflammatory responses during chronic respiratory diseases, such as asthma and chronic obstructive pulmonary disease. Type III IFNs are, therefore, arising as front-line guardians of immune defenses in the respiratory tract, fine tuning inflammation, and as potential novel therapeutics for the treatment of diverse respiratory diseases, including influenza virus infection and asthma. PMID- 29033948 TI - Unique Features of Pancreatic-Resident Regulatory T Cells in Autoimmune Type 1 Diabetes. AB - Recent progress in regulatory T cells (Tregs) biology emphasizes the importance of understanding tissue-resident Tregs in response to tissue-specific environment. Now, emerging evidence suggests that pancreatic-resident forkhead box P3+ Tregs have distinguishable effects on the suppression of over-exuberant immune responses in autoimmune type 1 diabetes (T1D). Thus, there is growing interest in elucidating the role of pancreatic-resident Tregs that function and evolve in the local environment. In this review, we discuss the phenotype and function of Tregs residing in pancreatic tissues and pancreatic lymph nodes, with emphasis on the unique subpopulations of Tregs that control the disease progression in the context of T1D. Specifically, we discuss known and possible modulators that influence the survival, migration, and maintenance of pancreatic Tregs. PMID- 29033949 TI - Microarray Analysis Identifies the Potential Role of Long Non-Coding RNA in Regulating Neuroinflammation during Japanese Encephalitis Virus Infection. AB - Japanese encephalitis virus (JEV) is the leading cause of epidemic encephalitis worldwide. JEV-induced neuroinflammation is characterized by profound neuronal cells damage accompanied by activation of glial cells. Albeit long non-coding RNAs (lncRNAs) have been emerged as important regulatory RNAs with profound effects on various biological processes, it is unknown how lncRNAs regulate JEV induced inflammation. Here, using microarray approach, we identified 618 lncRNAs and 1,007 mRNAs differentially expressed in JEV-infected mice brain. The functional annotation analysis revealed that differentially regulated transcripts were predominantly involved in various signaling pathways related to host immune and inflammatory responses. The lncRNAs with their potential to regulate JEV induced inflammatory response were identified by constructing the lncRNA-mRNA coexpression network. Furthermore, silencing of the two selected lncRNAs (E52329 and N54010) resulted in reducing the phosphorylation of JNK and MKK4, which are known to be involved during inflammatory response. Collectively, we first demonstrated the transcriptomic landscape of lncRNAs in mice brain infected with JEV and analyzed the coexpression network of differentially regulated lncRNAs and mRNAs during JEV infection. Our results provide a better understanding of the host response to JEV infection and suggest that the identified lncRNAs may be used as potential therapeutic targets for the management of Japanese encephalitis. PMID- 29033950 TI - Glutathione Fine-Tunes the Innate Immune Response toward Antiviral Pathways in a Macrophage Cell Line Independently of Its Antioxidant Properties. AB - Glutathione (GSH), a major cellular antioxidant, is considered an inhibitor of the inflammatory response involving reactive oxygen species (ROS). However, evidence is largely based on experiments with exogenously added antioxidants/reducing agents or pro-oxidants. We show that depleting macrophages of 99% of GSH does not exacerbate the inflammatory gene expression profile in the RAW264 macrophage cell line or increase expression of inflammatory cytokines in response to the toll-like receptor 4 (TLR4) agonist lipopolysaccharide (LPS); only two small patterns of LPS-induced genes were sensitive to GSH depletion. One group, mapping to innate immunity and antiviral responses (Oas2, Oas3, Mx2, Irf7, Irf9, STAT1, il1b), required GSH for optimal induction. Consequently, GSH depletion prevented the LPS-induced activation of antiviral response and its inhibition of influenza virus infection. LPS induction of a second group of genes (Prdx1, Srxn1, Hmox1, GSH synthase, cysteine transporters), mapping to nrf2 and the oxidative stress response, was increased by GSH depletion. We conclude that the main function of endogenous GSH is not to limit inflammation but to fine-tune the innate immune response to infection. PMID- 29033951 TI - Sphingosine-1-Phosphate Receptor 5 Modulates Early-Stage Processes during Fibrogenesis in a Mouse Model of Systemic Sclerosis: A Pilot Study. AB - Systemic sclerosis (SSc) is a rare multi-organ autoimmune disease characterized by progressive skin fibrosis. Inflammation, type 2 immunity, and fibrogenic processes are involved in disease development and may be affected by sphingolipids. However, details about early-stage pathophysiological mechanisms and implicated mediators remain elusive. The sphingolipid sphingosine-1-phosphate (S1P) is elevated in the sera of SSc patients, and its receptor S1P5 is expressed in skin tissue. Nevertheless, almost nothing is known about the dermatological contribution of S1P5 to inflammatory and pro-fibrotic processes leading to the pathological changes seen in SSc. In this study, we observed a novel effect of S1P5 on the inflammatory processes during low-dose bleomycin (BLM)-induced fibrogenesis in murine skin. By comparing 2-week-treated skin areas of wild-type (WT) and S1P5-deficient mice, we found that S1P5 is important for the transcriptional upregulation of the Th2 characteristic transcription factor GATA 3 under treatment-induced inflammatory conditions, while T-bet (Th1) and FoxP3 (Treg) mRNA expression was regulated independently of S1P5. Additionally, treatment caused a regulation of S1P receptor 1 and S1P receptor 3 mRNA as well as a regulation of long-chain ceramide profiles, which both differ significantly between the genotypes. Despite S1P5-dependent differences regarding inflammatory processes, similar macroscopic evidence of fibrosis was detected in the skin histology of WT and S1P5-deficient mice after 4 weeks of subcutaneous BLM treatment. However, at the earlier 2-week point in time, the mRNA data of pro collagen type 1 and SMAD7 indicate a pro-fibrotic S1P5 contribution in the applied SSc mouse model. In conclusion, we propose that S1P5 plays a role as a novel modulator during the early phase of BLM-caused fibrogenesis in murine skin. An immediate relationship between dermal S1P5 expression and fibrotic processes leading to skin alterations, such as formative for SSc pathogenesis, is indicated but should be studied more profound in further investigations. Therefore, this study is an initial step in understanding the role of S1P5-mediated effects during early stages of fibrogenesis, which may encourage the ongoing search for new therapeutic options for SSc patients. PMID- 29033952 TI - Essential Role for Ethanolamine Plasmalogen Hydrolysis in Bacterial Lipopolysaccharide Priming of Macrophages for Enhanced Arachidonic Acid Release. AB - Due to their high content in esterified arachidonic acid (AA), macrophages provide large amounts of eicosanoids during innate immune reactions. Bacterial lipopolysaccharide (LPS) is a poor trigger of AA mobilization in macrophages but does have the capacity to prime these cells for greatly increased AA release upon subsequent stimulation. In this work, we have studied molecular mechanisms underlying this phenomenon. By using mass spectrometry-based lipidomic analyses, we show in this work that LPS-primed zymosan-stimulated macrophages exhibit an elevated consumption of a particular phospholipid species, i.e., the ethanolamine plasmalogens, which results from reduced remodeling of phospholipids via coenzyme A-independent transacylation reactions. Importantly however, LPS-primed macrophages show no changes in their capacity to directly incorporate AA into phospholipids via CoA-dependent acylation reactions. The essential role for ethanolamine plasmalogen hydrolysis in LPS priming is further demonstrated by the use of plasmalogen-deficient cells. These cells, while responding normally to zymosan by releasing quantities of AA similar to those released by cells expressing normal plasmalogen levels under the same conditions, fail to show an LPS-primed response to the same stimulus, thus unambiguously demonstrating a cause-effect relationship between LPS priming and plasmalogen hydrolysis. Collectively, these results suggest a hitherto unrecognized role for ethanolamine plasmalogen hydrolysis and CoA-independent transacylation reactions in modulating the eicosanoid biosynthetic response. PMID- 29033953 TI - Development and Characterization of Transgenic Sugarcane with Insect Resistance and Herbicide Tolerance. AB - Genetically modified crops which had been commercial applied extensively majorly are the insect resistance and herbicide tolerance events. In this study, the Bt insecticidal gene Cry1Ab, the glyphosate-tolerant gene EPSPS, and the selection marker gene PMI were combined into a single transferred DNA fragment and introduced into sugarcane by Agrobacterium-mediated transformation. Thirty-three resistant plantlets were obtained after selection using a PMI/mannose selection system. Thirty of these resistant plantlets were PCR positive for the three target genes. Southern blot assay revealed that the copy number of the integrated fragment in the transformed plantlets varied from 1 to 7. ELISA analysis showed that 23 of the 33 resistant plantlets expressed Cry1Ab and EPSPS protein. Five single-copy and ELISA-positive transgenic lines were tested under laboratory and field conditions to determine their resistance to insects and herbicides, and also evaluated their agronomic characteristics and industrial traits. Results showed that larvae fed with fodder mixture containing stem tissues from single copy transgenic lines were weak and small, moreover, pupation and eclosion were delayed significantly during voluntary feeding bioassays. None of transgenic sugarcane was destroyed by cane borer while more than 30% of wild type sugarcane was destroyed by cane borer. For herbicide resistance, the transgenic plantlets grew healthy even when treated with up to 0.5% roundup while wild type plantlets would die off when treated with 0.1% roundup. Thus demonstrate that these transgenic lines showed strong insect resistance and glyphosate tolerance under both laboratory and field conditions. But in the field most of the transgenic plants were shorter and more slender than non-transformed control plants. So they presented poor agronomic characteristics and industrial traits than non transformed control plants. Thus, a considerable number of embryogenic calli should be infected to obtain transgenic lines with potential for commercial use. PMID- 29033954 TI - Setaria Comes of Age: Meeting Report on the Second International Setaria Genetics Conference. AB - Setaria viridis is an emerging model for cereal and bioenergy grasses because of its short stature, rapid life cycle and expanding genetic and genomic toolkits. Its close phylogenetic relationship with economically important crops such as maize and sorghum positions Setaria as an ideal model system for accelerating discovery and characterization of crop genes that control agronomically important traits. The Second International Setaria Genetics Conference was held on March 6 8, 2017 at the Donald Danforth Plant Science Center, St. Louis, MO, United States to discuss recent technological breakthroughs and research directions in Setaria (presentation abstracts can be downloaded at https://www.brutnelllab.org/setaria). Here, we highlight topics presented in the conference including inflorescence architecture, C4 photosynthesis and abiotic stress. Genetic and genomic toolsets including germplasm, mutant populations, transformation and gene editing technologies are also discussed. Since the last meeting in 2014, the Setaria community has matured greatly in the quality of research being conducted. Outreach and increased communication with maize and other plant communities will allow broader adoption of Setaria as a model system to translate fundamental discovery research to crop improvement. PMID- 29033956 TI - Transcriptome and Differential Expression Profiling Analysis of the Mechanism of Ca2+ Regulation in Peanut (Arachis hypogaea) Pod Development. AB - Calcium not only serves as a necessary nutrient for plant growth but also acts as a ubiquitous central hub in a large number of signaling pathways. Free Ca2+ deficiency in the soil may cause early embryo abortion, which eventually led to abnormal development of peanut pod during the harvest season. To understand the mechanisms of Ca2+ regulation in pod development, transcriptome analysis of peanut gynophores and pods was performed by comparing the treatments between free Ca2+ sufficiency and free Ca2+ deficiency using Illumina HiSeqTM 2000. 9,903,082,800 nt bases are generated totally. After assembly, the average length of 102,819 unigenes is 999 nt, N50 is 1,782 nt. RNA-seq based gene expression profilings showed a large number of genes at the transcriptional level changed significantly between the aerial pegs and underground swelling pods under free Ca2+ sufficienct or deficiency treatments, respectively. Genes encoding key members of Ca2+ signaling transduction pathway, enzymes for hormone metabolism, cell division and growth, transcriptional factor as well as embryo development were highlighted. This information provides useful information for our further study. The results of digital gene expression (DGE) indicated that exogenous calcium might contribute to the development of peanut pod through its signal transduction pathway, meanwhile, promote the normal transition of the gynophores to the reproductive development. PMID- 29033957 TI - Reacquisition of New Meristematic Sites Determines the Development of a New Organ, the Cecidomyiidae Gall on Copaifera langsdorffii Desf. (Fabaceae). AB - The development of gall shapes has been attributed to the feeding behavior of the galling insects and how the host tissues react to galling stimuli, which ultimately culminate in a variable set of structural responses. A superhost of galling herbivores, Copaifera langsdorffii, hosts a bizarre "horn-shaped" leaflet gall morphotype induced by an unidentified species of Diptera: Cecidomyiidae. By studying the development of this gall morphotype under the anatomical and physiological perspectives, we demonstrate the symptoms of the Cecidomyiidae manipulation over plant tissues, toward the cell redifferentiation and tissue neoformation. The most prominent feature of this gall is the shifting in shape from growth and development phase toward maturation, which imply in metabolites accumulation detected by histochemical tests in meristem-like group of cells within gall structure. We hypothesize that the development of complex galls, such as the horn-shaped demands the reacquisition of cell meristematic competence. Also, as mature galls are green, their photosynthetic activity should be sufficient for their oxygenation, thus compensating the low gas diffusion through the compacted gall parenchyma. We currently conclude that the galling Cecidomyiidae triggers the establishment of new sites of meristematic tissues, which are ultimately responsible for shifting from the young conical to the mature horn-shaped gall morphotype. Accordingly, the conservative photosynthesis activity in gall site maintains tissue homeostasis by avoiding hypoxia and hipercarbia in the highly compacted gall tissues. PMID- 29033959 TI - Editorial: Advances in Plant-Hemipteran Interactions. PMID- 29033958 TI - Enhanced Bacterial Wilt Resistance in Potato Through Expression of Arabidopsis EFR and Introgression of Quantitative Resistance from Solanum commersonii. AB - Bacterial wilt (BW) caused by Ralstonia solanacearum is responsible for substantial losses in cultivated potato (Solanum tuberosum) crops worldwide. Resistance genes have been identified in wild species; however, introduction of these through classical breeding has achieved only partial resistance, which has been linked to poor agronomic performance. The Arabidopsis thaliana (At) pattern recognition receptor elongation factor-Tu (EF-Tu) receptor (EFR) recognizes the bacterial pathogen-associated molecular pattern EF-Tu (and its derived peptide elf18) to confer anti-bacterial immunity. Previous work has shown that transfer of AtEFR into tomato confers increased resistance to R. solanacearum. Here, we evaluated whether the transgenic expression of AtEFR would similarly increase BW resistance in a commercial potato line (INIA Ipora), as well as in a breeding potato line (09509.6) in which quantitative resistance has been introgressed from the wild potato relative Solanum commersonii. Resistance to R. solanacearum was evaluated by damaged root inoculation under controlled conditions. Both INIA Ipora and 09509.6 potato lines expressing AtEFR showed greater resistance to R. solanacearum, with no detectable bacteria in tubers evaluated by multiplex-PCR and plate counting. Notably, AtEFR expression and the introgression of quantitative resistance from S. commersonii had a significant additive effect in 09509.6-AtEFR lines. These results show that the combination of heterologous expression of AtEFR with quantitative resistance introgressed from wild relatives is a promising strategy to develop BW resistance in potato. PMID- 29033960 TI - Evaluation of the CropSyst Model during Wheat-Maize Rotations on the North China Plain for Identifying Soil Evaporation Losses. AB - The North China Plain (NCP) is a major grain production zone that plays a critical role in ensuring China's food supply. Irrigation is commonly used during grain production; however, the high annual water deficit [precipitation (P) minus evapotranspiration (ET)] in typical irrigated cropland does not support double cropping systems (such as maize and wheat) and this has resulted in the steep decline in the water table (~0.8 m year-1 at the Luancheng station) that has taken place since the 1970s. The current study aimed to adapt and check the ability of the CropSyst model (Suite-4) to simulate actual evapotranspiration (ETa), biomass, and grain yield, and to identify major evaporation (E) losses from winter wheat (WW) and summer maize (SM) rotations. Field experiments were conducted at the Luancheng Agro-ecosystem station, NCP, in 2010-2011 to 2012 2013. The CropSyst model was calibrated on wheat/maize (from weekly leaf area/biomass data available for 2012-2013) and validated onto measured ETa, biomass, and grain yield at the experimental station from 2010-2011 to 2011-2012, by using model calibration parameters. The revalidation was performed with the ETa, biomass, grain yield, and simulated ETa partition for 2008-2009 WW [ETa partition was measured by the Micro-lysimeter (MLM) and isotopes approach available for this year]. For the WW crop, E was 30% of total ETa; but from 2010 11 to 2013, the annual average E was ~40% of ETa for the WW and SM rotation. Furthermore, the WW and SM rotation from 2010-2011 to 2012-2013 was divided into three growth periods; (i) pre-sowing irrigation (PSI; sowing at field capacity) to emergence period (EP), (ii) EP to canopy cover period (CC) and (iii) CC to harvesting period (HP), and E from each growth period was ~10, 60, and 30%, respectively. In general, error statistics such as RMSE, Willmott's d, and NRMSE in the model evaluation for wheat ETa (maize ETa) were 38.3 mm, 0.81, and 9.24% (31.74 mm, 0.73, and 11.89%); for wheat biomass (maize biomass) they were 1.25 Mg ha-1, 0.83, and 9.64% (0.78 Mg ha-1, 0.96, and 7.96%); and for wheat grain yield (maize grain yield) they were 0.65 Mg ha-1, 0.82, and 9.87% (0.2 Mg ha-1, 0.99, and 3.79%). The results showed that CropSyst is a valid model that can be use with a reliable degree of accuracy for optimizing WW and SM grain yield production and water requirement on the NCP. PMID- 29033961 TI - Fast High Resolution Volume Carving for 3D Plant Shoot Reconstruction. AB - Volume carving is a well established method for visual hull reconstruction and has been successfully applied in plant phenotyping, especially for 3d reconstruction of small plants and seeds. When imaging larger plants at still relatively high spatial resolution (<=1 mm), well known implementations become slow or have prohibitively large memory needs. Here we present and evaluate a computationally efficient algorithm for volume carving, allowing e.g., 3D reconstruction of plant shoots. It combines a well-known multi-grid representation called "Octree" with an efficient image region integration scheme called "Integral image." Speedup with respect to less efficient octree implementations is about 2 orders of magnitude, due to the introduced refinement strategy "Mark and refine." Speedup is about a factor 1.6 compared to a highly optimized GPU implementation using equidistant voxel grids, even without using any parallelization. We demonstrate the application of this method for trait derivation of banana and maize plants. PMID- 29033955 TI - Multilevel Regulation of Abiotic Stress Responses in Plants. AB - The sessile lifestyle of plants requires them to cope with stresses in situ. Plants overcome abiotic stresses by altering structure/morphology, and in some extreme conditions, by compressing the life cycle to survive the stresses in the form of seeds. Genetic and molecular studies have uncovered complex regulatory processes that coordinate stress adaptation and tolerance in plants, which are integrated at various levels. Investigating natural variation in stress responses has provided important insights into the evolutionary processes that shape the integrated regulation of adaptation and tolerance. This review primarily focuses on the current understanding of how transcriptional, post-transcriptional, post translational, and epigenetic processes along with genetic variation orchestrate stress responses in plants. We also discuss the current and future development of computational tools to identify biologically meaningful factors from high dimensional, genome-scale data and construct the signaling networks consisting of these components. PMID- 29033964 TI - Management of Fruit Species in Urban Home Gardens of Argentina Atlantic Forest as an Influence for Landscape Domestication. AB - Home gardens are considered germplasm repositories and places for experimentation, thus they are key sites for the domestication of plants. Domestication is considered a constant process that occurs along a continuum from wild to managed to domesticated populations. Management may lead to the modification of populations and in other cases to their distribution, changing population structure in a landscape. Our objective is focused on the management received in home gardens by perennial species of fruits. For this, the management practices applied to native and exotic perennial fruits species by a group of 20 women in the periurban zone of Iguazu, Argentina, were analyzed. In-depth interviews were conducted, as well as guided tours for the recognition and collection of specimens of species and ethnovarieties. Sixty-six fruit species managed in the home gardens were recorded. The predominant families are Rutaceae, Myrtaceae, and Rosaceae. The fruit species with the highest number of associated management practices are pitanga (Eugenia uniflora) and pindo (Syagrus rommanzoffiana). The 10 species with the highest management intensity are (in decreasing order of intensity) banana (Musa x paradisiaca), palta (Persea americana), pitanga (E. uniflora), mango (Mangifera indica), cocu (Allophylus edulis), mamon (Carica papaya), guayaba (Psidium guajava), limon mandarina (Citrus x taitensis), guembe (Philodendron bipinnatifidum), and mandarina (Citrus reticulata). Among the families with the greatest modifications in their distribution, abundance and presence of ethnovarieties in domestic gardens, are the native Myrtaceae and the exotic Rutaceae. The main management practices involved are cultivation, tolerance, transplant and enhancement in decreasing order. It can be concluded that in Iguazu, fruit species management shows both in plant germplasm as in environment a continuum that through tolerance, transplant and cultivation latu sensu has derived in a mosaic of species in different management situations, which in turn are representative of an anthropogenic landscape in constant domestication and change. PMID- 29033962 TI - Unveiling Chloroplast RNA Editing Events Using Next Generation Small RNA Sequencing Data. AB - Organellar RNA editing involves the modification of nucleotide sequences to maintain conserved protein functions, mainly by reverting non-neutral codon mutations. The loss of plastid editing events, resulting from mutations in RNA editing factors or through stress interference, leads to developmental, physiological and photosynthetic alterations. Recently, next generation sequencing technology has generated the massive discovery of sRNA sequences and expanded the number of sRNA data. Here, we present a method to screen chloroplast RNA editing using public sRNA libraries from Arabidopsis, soybean and rice. We mapped the sRNAs against the nuclear, mitochondrial and plastid genomes to confirm predicted cytosine to uracil (C-to-U) editing events and identify new editing sites in plastids. Among the predicted editing sites, 40.57, 34.78, and 25.31% were confirmed using sRNAs from Arabidopsis, soybean and rice, respectively. SNP analysis revealed 58.2, 43.9, and 37.5% new C-to-U changes in the respective species and identified known and new putative adenosine to inosine (A-to-I) RNA editing in tRNAs. The present method and data reveal the potential of sRNA as a reliable source to identify new and confirm known editing sites. PMID- 29033966 TI - Impaired Magnesium Protoporphyrin IX Methyltransferase (ChlM) Impedes Chlorophyll Synthesis and Plant Growth in Rice. AB - Magnesium protoporphyrin IX methyltransferase (ChlM) catalyzes the formation of magnesium protoporphyrin IX monomethylester (MgPME) from magnesium protoporphyrin IX (MgP) in the chlorophyll synthesis pathway. However, no ChlM gene has yet been identified and studied in monocotyledonous plants. In this study, a spontaneous mutant, yellow-green leaf 18 (ygl18), was isolated from rice (Oryza sativa). This mutant showed yellow-green leaves, decreased chlorophyll level, and climate dependent growth differences. Map-based cloning of this mutant identified the YGL18 gene LOC_Os06g04150. YGL18 is expressed in green tissues, especially in leaf organs, where it functions in chloroplasts. YGL18 showed an amino-acid sequence similarity to that of ChlM from different photosynthetic organisms. In vitro enzymatic assays demonstrated that YGL18 performed ChlM enzymatic activity, but ygl18 had nearly lost all ChlM activity. Correspondingly, the substrate MgP was largely accumulated while the product MgPME was reduced in ygl18 leaves. YGL18 is required for light-dependent and photoperiod-regulated chlorophyll synthesis. The retarded growth of ygl18 mutant plants was caused by the high light intensity. Moreover, the higher light intensity and longer exposure in high light intensity even made the ygl18 plants be more susceptible to death. Based on these results, it is suggested that YGL18 plays essential roles in light-related chlorophyll synthesis and light intensity-involved plant growth. PMID- 29033965 TI - Novel Alleles of Two Tightly Linked Genes Encoding Polygalacturonase-Inhibiting Proteins (VrPGIP1 and VrPGIP2) Associated with the Br Locus That Confer Bruchid (Callosobruchus spp.) Resistance to Mungbean (Vigna radiata) Accession V2709. AB - Nearly all mungbean cultivars are completely susceptible to seed bruchids (Callosobruchus chinensis and Callosobruchus maculatus). Breeding bruchid resistant mungbean is a major goal in mungbean breeding programs. Recently, we demonstrated in mungbean (Vigna radiata) accession V2802 that VrPGIP2, which encodes a polygalacturonase inhibiting protein (PGIP), is the Br locus responsible for resistance to C. chinensis and C. maculatus. In this study, mapping in mungbean accession V2709 using a BC11F2 population of 355 individuals revealed that a single major quantitative trait locus, which controlled resistance to both C. chinensis and C. maculatus, was located in a 237.35 Kb region of mungbean chromosome 5 that contained eight annotated genes, including VrPGIP1 (LOC106760236) and VrPGIP2 (LOC106760237). VrPGIP1 and VrPGIP2 are located next to each other and are only 27.56 Kb apart. Sequencing VrPGIP1 and VrPGIP2 in "V2709" revealed new alleles for both VrPGIP1 and VrPGIP2, named VrPGIP1-1 and VrPGIP2-2, respectively. VrPGIP2-2 has one single nucleotide polymorphism (SNP) at position 554 of wild type VrPGIP2. This SNP is a guanine to cystine substitution and causes a proline to arginine change at residue 185 in the VrPGIP2 of "V2709". VrPGIP1-1 has 43 SNPs compared with wild type and "V2802", and 20 cause amino acid changes in VrPGIP1. One change is threonine to proline at residue 185 in VrPGIP1, which is the same as in VrPGIP2. Sequence alignments of VrPGIP2 and VrPGIP1 from "V2709" with common bean (Phaseolus vulgaris) PGIP2 revealed that residue 185 in VrPGIP2 and VrPGIP1 contributes to the secondary structures of proteins that affect interactions between PGIP and polygalacturonase, and that some amino acid changes in VrPGIP1 also affect interactions between PGIP and polygalacturonase. Thus, tightly linked VrPGIP1 and VrPGIP2 are the likely genes at the Br locus that confer bruchid resistance in mungbean "V2709". PMID- 29033963 TI - Convergent Evolution of Pathogen Effectors toward Reactive Oxygen Species Signaling Networks in Plants. AB - Microbial pathogens have evolved protein effectors to promote virulence and cause disease in host plants. Pathogen effectors delivered into plant cells suppress plant immune responses and modulate host metabolism to support the infection processes of pathogens. Reactive oxygen species (ROS) act as cellular signaling molecules to trigger plant immune responses, such as pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) and effector-triggered immunity. In this review, we discuss recent insights into the molecular functions of pathogen effectors that target multiple steps in the ROS signaling pathway in plants. The perception of PAMPs by pattern recognition receptors leads to the rapid and strong production of ROS through activation of NADPH oxidase Respiratory Burst Oxidase Homologs (RBOHs) as well as peroxidases. Specific pathogen effectors directly or indirectly interact with plant nucleotide-binding leucine-rich repeat receptors to induce ROS production and the hypersensitive response in plant cells. By contrast, virulent pathogens possess effectors capable of suppressing plant ROS bursts in different ways during infection. PAMP triggered ROS bursts are suppressed by pathogen effectors that target mitogen activated protein kinase cascades. Moreover, pathogen effectors target vesicle trafficking or metabolic priming, leading to the suppression of ROS production. Secreted pathogen effectors block the metabolic coenzyme NADP-malic enzyme, inhibiting the transfer of electrons to the NADPH oxidases (RBOHs) responsible for ROS generation. Collectively, pathogen effectors may have evolved to converge on a common host protein network to suppress the common plant immune system, including the ROS burst and cell death response in plants. PMID- 29033967 TI - Photosynthetic Response of Soybean Leaf to Wide Light-Fluctuation in Maize Soybean Intercropping System. AB - In maize-soybean intercropping system, soybean plants will be affected by the wide light-fluctuation, which resulted from the shading by maize plants, as the shading of maize the light is not enough for soybean in the early morning and late afternoon, but at noon, the light is strong as the maize shading disappeared. The objective of this study is to evaluate the photosynthetic response of soybean leaf to the wide light-fluctuation. The data of diurnal variation of photosynthetic characters showed that the photosynthetic rate of intercropped soybean was weaker than that of monocropped soybean. The chlorophyll content, ratio of chlorophyll a/b, and AQE (apparent quantum efficiency) were increased and Rd (dark respiration rate) was decreased for the more efficient interception and absorption of light and carbon gain in intercropping. deltaRo (The efficiency/probability with which an electron from the intersystem electron carriers was transferred to reduce end electron acceptors at the PSI acceptor side) and phiRo (the quantum yield for the reduction of the end electron acceptors at the PSI acceptor side) in intercropped soybean leaf were lower compared to those in monocropped one, which showed that the acceptor side of PSI might be inhibited, and also it was the main reason that soybean plants showed a low photosynthetic capacity in intercropping. psiEo (the efficiency/probability with an electron moves further than QA-) in monocropping and intercropping decreased 5.8, and 35.7%, respectively, while phiEo (quantum yield for electron transport) decreased 27.7 and 45.3% under the high radiation at noon, which suggested that the acceptor side of PSII was inhibited, while the NPQ became higher. These were beneficial to dissipate excess excitation energy in time, and protect the photosynthetic apparatus against photo-damage. The higher performance index on the absorption basis (PIABS) and lower deltaRo, phiRo, psiEo, and phiEo of intercropped soybeans compared to monocropping under high radiation indicated that the electron transfer of intercropped soybean was inhibited more seriously and intercropped soybean adjusted the electron transport between PSII to PSI to adapt the light-fluctuation. Higher NPQ capacity of intercropped soybeans played a key role in keeping the leaf with a better physiological flexibility under the high radiation. PMID- 29033969 TI - Intercropping Induces Changes in Specific Secondary Metabolite Concentration in Ethiopian Kale (Brassica carinata) and African Nightshade (Solanum scabrum) under Controlled Conditions. AB - Intercropping is widespread in small-holder farming systems in tropical regions and is also practiced in the cultivation of indigenous vegetables, to alleviate the multiple burdens of malnutrition. Due to interspecific competition and/or complementation between intercrops, intercropping may lead to changes in plants accumulation of minerals and secondary metabolites and hence, alter nutritional quality for consumers. Intercropping aims to intensify land productivity, while ensuring that nutritional quality is not compromised. This study aimed to investigate changes in minerals and secondary plant metabolites in intercropped Brassica carinata and Solanum scabrum, two important African indigenous vegetables, and evaluated the suitability of this combination for dryer areas. B. carinata and S. scabrum were grown for 6 weeks under controlled conditions in a greenhouse trial. Large rootboxes (8000 cm3 volume) were specifically designed for this experiment. Each rootbox was planted with two plants, either of the same plant species (mono) or one of each plant species (mixed). A quartz sand/soil substrate was used and fertilized adequately for optimal plant growth. During the last 4 weeks of the experiment, the plants were either supplied with optimal (65% WHC) or low (30% WHC) irrigation, to test the effect of a late-season drought. Intercropping increased total glucosinolate content in B. carinata, while maintaining biomass production and the contents of other health related minerals in both B. carinata and S. scabrum. Moreover, low irrigation led to an increase in carotene accumulation in both mono and intercropped S. scabrum, but not in B. carinata, while the majority of kaempferol glycosides and hydroxycinnamic acid derivatives of both species were decreased by intercropping and drought treatment. This study indicates that some health-related phytochemicals can be modified by intercropping or late-season drought, but field validation of these results is necessary before definite recommendation can be made to stakeholders. PMID- 29033971 TI - Genetic Dissection of Root Morphological Traits Related to Nitrogen Use Efficiency in Brassica napus L. under Two Contrasting Nitrogen Conditions. AB - As the major determinant for nutrient uptake, root system architecture (RSA) has a massive impact on nitrogen use efficiency (NUE). However, little is known the molecular control of RSA as related to NUE in rapeseed. Here, a rapeseed recombinant inbred line population (BnaZNRIL) was used to investigate root morphology (RM, an important component for RSA) and NUE-related traits under high nitrogen (HN) and low-nitrogen (LN) conditions by hydroponics. Data analysis suggested that RM-related traits, particularly root size had significantly phenotypic correlations with plant dry biomass and N uptake irrespective of N levels, but no or little correlation with N utilization efficiency (NUtE), providing the potential to identify QTLs with pleiotropy or specificity for RM- and NUE-related traits. A total of 129 QTLs (including 23 stable QTLs, which were repeatedly detected at least two environments or different N levels) were identified and 83 of them were integrated into 22 pleiotropic QTL clusters. Five RM-NUE, ten RM-specific and three NUE-specific QTL clusters with same directions of additive-effect implied two NUE-improving approaches (RM-based and N utilization-based directly) and provided valuable genomic regions for NUE improvement in rapeseed. Importantly, all of four major QTLs and most of stable QTLs (20 out of 23) detected here were related to RM traits under HN and/or LN levels, suggested that regulating RM to improve NUE would be more feasible than regulating N efficiency directly. These results provided the promising genomic regions for marker-assisted selection on RM-based NUE improvement in rapeseed. PMID- 29033970 TI - Spermine Regulates Pollen Tube Growth by Modulating Ca2+-Dependent Actin Organization and Cell Wall Structure. AB - Proper growth of the pollen tube depends on an elaborate mechanism that integrates several molecular and cytological sub-processes and ensures a cell shape adapted to the transport of gametes. This growth mechanism is controlled by several molecules among which cytoplasmic and apoplastic polyamines. Spermine (Spm) has been correlated with various physiological processes in pollen, including structuring of the cell wall and modulation of protein (mainly cytoskeletal) assembly. In this work, the effects of Spm on the growth of pear pollen tubes were analyzed. When exogenous Spm (100 MUM) was supplied to germinating pollen, it temporarily blocked tube growth, followed by the induction of apical swelling. This reshaping of the pollen tube was maintained also after growth recovery, leading to a 30-40% increase of tube diameter. Apical swelling was also accompanied by a transient increase in cytosolic calcium concentration and alteration of pH values, which were the likely cause for major reorganization of actin filaments and cytoplasmic organelle movement. Morphological alterations of the apical and subapical region also involved changes in the deposition of pectin, cellulose, and callose in the cell wall. Thus, results point to the involvement of Spm in cell wall construction as well as cytoskeleton organization during pear pollen tube growth. PMID- 29033968 TI - Dancing with Hormones: A Current Perspective of Nitrate Signaling and Regulation in Arabidopsis. AB - In nature and agriculture, nitrate availability is a main environmental cue for plant growth, development and stress responses. Nitrate signaling and regulation are hence at the center of communications between plant intrinsic programs and the environment. It is also well known that endogenous phytohormones play numerous critical roles in integrating extrinsic cues and intrinsic responses, regulating and refining almost all aspects of plant growth, development and stress responses. Therefore, interaction between nitrate and phytohormones, such as auxins, cytokinins, abscisic acid, gibberellins, and ethylene, is prevalent. The growing evidence indicates that biosynthesis, de-conjugation, transport, and signaling of hormones are partly controlled by nitrate signaling. Recent advances with nitrate signaling and transcriptional regulation in Arabidopsis give rise to new paradigms. Given the comprehensive nitrate transport, sensing, signaling and regulations at the level of the cell and organism, nitrate itself is a local and long-distance signal molecule, conveying N status at the whole-plant level. A direct molecular link between nitrate signaling and cell cycle progression was revealed with TEOSINTE BRANCHED1/CYCLOIDEA/PROLIFERATING CELL FACTOR1-20 (TCP20) NIN-LIKE PROTEIN 6/7 (NLP6/7) regulatory nexus. NLPs are key regulators of nitrogen responses in plants. TCPs function as the main regulators of plant morphology and architecture, with the emerging role as integrators of plant developmental responses to the environment. By analogy with auxin being proposed as a plant morphogen, nitrate may be an environmental morphogen. The morphogen gradient-dependent and cell-autonomous mechanisms of nitrate signaling and regulation are an integral part of cell growth and cell identification. This is especially true in root meristem growth that is regulated by intertwined nitrate, phytohormones, and glucose-TOR signaling pathways. Furthermore, the nitrate transcriptional hierarchy is emerging. Nitrate regulators in primary nitrate signaling can individually and combinatorially control downstream transcriptional networks and hormonal pathways for signal propagation and amplification. Under the new paradigms, nitrate-induced hormone metabolism and signaling deserve fresh examination. The close interplay and convergent regulation of nitrate and hormonal signaling at morphological, physiological, and molecular levels have significant effects on important agronomic traits, especially nutrient-dependent adaptive root system growth and architecture. PMID- 29033973 TI - Comparison of Central, Ambulatory, Home and Office Blood Pressure Measurement as Risk Markers for Mild Cognitive Impairment in Hypertensive Patients. AB - AIMS: We compared the role of central blood pressure (BP), ambulatory BP monitoring (ABPM), home-measured BP (HMBP) and office BP measurement as risk markers for the development of mild cognitive impairment (MCI). METHODS: 70 hypertensive patients on combination medical therapy were studied. Their mean age was 64.97 +/- 8.88 years. Eighteen (25.71%) were males and 52 (74.28%) females. All of the patients underwent full physical examination, laboratory screening, echocardiography, and office, ambulatory, home and central BP measurement. The neuropsychological tests used were: Mini Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA). SPSS 19 was used for the statistical analysis with a level of significance of 0.05. RESULTS: The mean central pulse pressure values of patients with MCI were significantly (p = 0.016) higher than those of the patients without MCI. There was a weak negative correlation between central pulse pressure and the results from the MoCA and MMSE (r = -0.283, p = 0.017 and r = -0.241, p = 0.044, respectively). There was a correlation between ABPM and MCI as well as between HMBP and MCI. CONCLUSIONS: The correlation of central BP with target organ damage (MCI) is as good as for the other types of measurements of BP (home and ambulatory). Office BP seems to be the poorest marker for the assessment of target organ damage. PMID- 29033972 TI - Clinical Spectrum, Risk Factors, and Behavioral Abnormalities among Dementia Subtypes in a North Indian Population: A Hospital-Based Study. AB - BACKGROUND: As variability in the clinical profile of dementia subtypes had been reported with regional differences across the world, we conducted a retrospective hospital-based study in a North Indian population. METHODS: We retrieved patient records from 2007 to 2014 for details of clinical evaluation, diagnosis, neuroimaging, biochemical investigations, and follow-up of 1,876 patients with dementia (PwD), and the data were analyzed using descriptive statistics. RESULTS: Of the total PwD, Alzheimer disease (AD) accounted for 30% followed by vascular dementia (VaD) 26%, mixed dementia (MD) 21%, Parkinson-related dementia 11%, frontotemporal dementia (FTD) 7%, and infective dementia 5%. Of all PwD excluding the infective group (n = 1,777), 63% were men, 39% were from rural areas, 87% had behavioral abnormalities along with cognitive deficits, and 73% had impaired ADLs. Among dementia subtypes, a positive family history, cardiovascular and metabolic risk factors, and behavioral abnormalities were found to be distributed. However, there existed a predominance of specific behavioral pattern in each subtype. The mean duration of follow-up varied from 2.9 +/- 2.3 (VaD) to 3.6 +/- 2.1 (AD) and greater than 30% were found to be stable on treatment (except in dementia with Lewy body). CONCLUSIONS: This large hospital-based study provides a distribution pattern and clinical spectrum of dementia subtypes in a North Indian population. PMID- 29033974 TI - Cognitive Deficits in Chronic Stroke Patients: Neuropsychological Assessment, Depression, and Self-Reports. AB - BACKGROUND: Following stroke, clinicians are challenged to detect and untangle symptoms of cognitive dysfunction and mood disorders. Additionally, they need to evaluate the informative value of self-reports to identify patients in need of further attendance. AIMS: To examine the association between neuropsychological measures, symptoms of depression, and self-reported cognitive function. METHODS: One-hundred and five chronic stroke patients underwent assessment covering 6 cognitive domains and answered the Hospital Anxiety and Depression Scale and the Memory and Thinking Scale from the Stroke Impact Scale 1 year after stroke. Age and gender difference in cognitive impairment were examined; linear regression was used to predict depression scores. Sensitivity and specificity analyses were used to validate self-reported functioning against performance on cognitive tests. RESULTS: Cognitive impairment was observed in 60% of the patients in at least 1 cognitive domain. Cognitive performance was associated with symptoms of depression as well as with self-reported cognitive function. The final analyses revealed low sensitivity and specificity for the Memory and Thinking subscale from the Stroke Impact Scale. CONCLUSION: Cognitive impairment occurs frequently even in patients in a chronic phase after stroke and predicts symptoms of depression. Using the Stroke Impact Scale, clinicians should be aware of low sensitivity of self-reported cognitive function. PMID- 29033975 TI - A Hypothesis and Review of the Relationship between Selection for Improved Production Efficiency, Coping Behavior, and Domestication. AB - Coping styles in response to stressors have been described both in humans and in other animal species. Because coping styles are directly related to individual fitness they are part of the life history strategy. Behavioral styles trade off with other life-history traits through the acquisition and allocation of resources. Domestication and subsequent artificial selection for production traits specifically focused on selection of individuals with energy sparing mechanisms for non-production traits. Domestication resulted in animals with low levels of aggression and activity, and a low hypothalamic-pituitary-adrenal (HPA) axis reactivity. In the present work, we propose that, vice versa, selection for improved production efficiency may to some extent continue to favor docile domesticated phenotypes. It is hypothesized that both domestication and selection for improved production efficiency may result in the selection of reactive style animals. Both domesticated and reactive style animals are characterized by low levels of aggression and activity, and increased serotonin neurotransmitter levels. However, whereas domestication quite consistently results in a decrease in the functional state of the HPA axis, the reactive coping style is often found to be dominated by a high HPA response. This may suggest that fearfulness and coping behavior are two independent underlying dimensions to the coping response. Although it is generally proposed that animal welfare improves with selection for calmer animals that are less fearful and reactive to novelty, animals bred to be less sensitive with fewer desires may be undesirable from an ethical point of view. PMID- 29033976 TI - confFuse: High-Confidence Fusion Gene Detection across Tumor Entities. AB - Background: Fusion genes play an important role in the tumorigenesis of many cancers. Next-generation sequencing (NGS) technologies have been successfully applied in fusion gene detection for the last several years, and a number of NGS based tools have been developed for identifying fusion genes during this period. Most fusion gene detection tools based on RNA-seq data report a large number of candidates (mostly false positives), making it hard to prioritize candidates for experimental validation and further analysis. Selection of reliable fusion genes for downstream analysis becomes very important in cancer research. We therefore developed confFuse, a scoring algorithm to reliably select high-confidence fusion genes which are likely to be biologically relevant. Results: confFuse takes multiple parameters into account in order to assign each fusion candidate a confidence score, of which score >=8 indicates high-confidence fusion gene predictions. These parameters were manually curated based on our experience and on certain structural motifs of fusion genes. Compared with alternative tools, based on 96 published RNA-seq samples from different tumor entities, our method can significantly reduce the number of fusion candidates (301 high-confidence from 8,083 total predicted fusion genes) and keep high detection accuracy (recovery rate 85.7%). Validation of 18 novel, high-confidence fusions detected in three breast tumor samples resulted in a 100% validation rate. Conclusions: confFuse is a novel downstream filtering method that allows selection of highly reliable fusion gene candidates for further downstream analysis and experimental validations. confFuse is available at https://github.com/Zhiqin-HUANG/confFuse. PMID- 29033977 TI - The Empirical Distribution of Singletons for Geographic Samples of DNA Sequences. AB - Rare variants are important for drawing inference about past demographic events in a species history. A singleton is a rare variant for which genetic variation is carried by a unique chromosome in a sample. How singletons are distributed across geographic space provides a local measure of genetic diversity that can be measured at the individual level. Here, we define the empirical distribution of singletons in a sample of chromosomes as the proportion of the total number of singletons that each chromosome carries, and we present a theoretical background for studying this distribution. Next, we use computer simulations to evaluate the potential for the empirical distribution of singletons to provide a description of genetic diversity across geographic space. In a Bayesian framework, we show that the empirical distribution of singletons leads to accurate estimates of the geographic origin of range expansions. We apply the Bayesian approach to estimating the origin of the cultivated plant species Pennisetum glaucum [L.] R. Br. (pearl millet) in Africa, and find support for range expansion having started from Northern Mali. Overall, we report that the empirical distribution of singletons is a useful measure to analyze results of sequencing projects based on large scale sampling of individuals across geographic space. PMID- 29033978 TI - Integrative Analysis of Transcription Factor Combinatorial Interactions Using a Bayesian Tensor Factorization Approach. AB - Transcription factors play a key role in transcriptional regulation of genes and determination of cellular identity through combinatorial interactions. However, current studies about combinatorial regulation is deficient due to lack of experimental data in the same cellular environment and extensive existence of data noise. Here, we adopt a Bayesian CANDECOMP/PARAFAC (CP) factorization approach (BCPF) to integrate multiple datasets in a network paradigm for determining precise TF interaction landscapes. In our first application, we apply BCPF to integrate three networks built based on diverse datasets of multiple cell lines from ENCODE respectively to predict a global and precise TF interaction network. This network gives 38 novel TF interactions with distinct biological functions. In our second application, we apply BCPF to seven types of cell type TF regulatory networks and predict seven cell lineage TF interaction networks, respectively. By further exploring the dynamics and modularity of them, we find cell lineage-specific hub TFs participate in cell type or lineage-specific regulation by interacting with non-specific TFs. Furthermore, we illustrate the biological function of hub TFs by taking those of cancer lineage and blood lineage as examples. Taken together, our integrative analysis can reveal more precise and extensive description about human TF combinatorial interactions. PMID- 29033979 TI - Participation in cooperative prey capture and the benefits gained from it are associated with individual personality. AB - In animal societies, behavioral idiosyncrasies of the individuals often guide which tasks they should perform. Such personality-specific task participation can increase individual task efficiency, thereby improving group performance. While several recent studies have documented group-level benefits of within-group behavioral (i.e., personality) diversity, how these benefits are realized at the individual level is unclear. Here we probe the individual-level benefits of personality-driven task participation in the social spider Stegodyphus dumicola. In S. dumicola, the presence of at least one highly bold individual catalyzes foraging behavior in shy colony members, and all group constituents heavily compete for prey. We assessed boldness by examining how quickly spiders resumed normal movement after a simulated predator attack. We test here whether (1) participants in collective foraging gain more mass from prey items and (2) whether bold individuals are less resistant to starvation than shy spiders, which would motivate the bold individuals to forage more. Next, we assembled colonies of shy spiders with and without a bold individual, added one prey item, and then tracked the mass gain of each individual spider after this single feeding event. We found that spiders that participated in prey capture (whether bold or shy) gained more mass than nonparticipators, and colonies containing a single bold spider gained more total mass than purely shy colonies. We also found that bold spiders participated in more collective foraging events and were more susceptible to starvation than shy spiders, suggesting that the aggressive foraging of bold individuals may represent a strategy to offset starvation risk. These findings add to the body of evidence that animal personality can shape social organization, individual performance, and group success. PMID- 29033981 TI - Spatial Variation of Ground Level Ozone Concentrations and its Health Impacts in an Urban Area in India. AB - The present study was designed to analyze the spatial distributions of ground level ozone (GLO) concentrations in Ranchi (Jharkhand, India) using geostatistical approaches. From September 2014 to August 2015, monthly GLO concentrations were monitored in 40-identified locations distributed in the region of study. In every month, the monitoring was done at three different time periods of the day; 5.30 AM to 7.30 AM, 11.30 AM to 1.30 PM, and 5.30 PM to 8 PM). The time duration was assigned based on the temporal variations of GLO concentrations. The descriptive statistics indicate that the spatial mean ozone concentrations ranged from 23.45 MUg m-3 to 53.91 MUg m-3 in morning hours, from 82.50 MUg m-3 to 126.66 MUg m-3 in the day time and from 40.04 MUg m-3 to 71.25 MUg m-3 in the evening hours. The higher level of spatial variance observed in the months of December (standard deviation: 24.21), July (standard deviation: 29.59) and November (standard deviation: 19.60) for the morning, noon, and evening time, respectively. The effects of meteorological factors (wind speed and wind direction) on the ozone concentrations were also analysed. The study confirmed that wind speed is not the dominant factor for influencing the GLO concentrations. The study also analysed the ozone air quality index (OZAQI) for assessing the health impacts in the study area. The result suggests that most of the area had the moderate category of OZAQI (101-200) and that leads to breathing discomfort for people with lung and heart disease. PMID- 29033980 TI - Cellular, physiological and pathological aspects of the long non-coding RNA NEAT1. AB - BACKGROUND: The majority of mammalian genomes have been found to be transcribed into non-coding RNAs. One category of non-coding RNAs is classified as long non coding RNAs (lncRNAs) based on their transcript sizes larger than 200 nucleotides. Growing evidence has shown that lncRNAs are not junk transcripts and play regulatory roles in multiple aspects of biological processes. Dysregulation of lncRNA expression has also been linked to diseases, in particular cancer. Therefore, studies of lncRNAs have attracted significant interest in the field of medical research. Nuclear enriched abundant transcript 1 (NEAT1), a nuclear lncRNA, has recently emerged as a key regulator involved in various cellular processes, physiological responses, developmental processes, and disease development and progression. OBJECTIVE: This review will summarize and discuss the most recent findings with regard to the roles of NEAT1 in the function of the nuclear paraspeckle, cellular pathways, and physiological responses and processes. Particularly, the most recently reported studies regarding the pathological roles of deregulated NEAT1 in cancer are highlighted in this review. METHODS: We performed a systematic literature search using the Pubmed search engine. Studies published over the last 8 years (between January 2009 and August 2016) were the sources of literature review. The following keywords were used: "Nuclear enriched abundant transcript 1", "NEAT1", and "paraspeckles". RESULTS: The Pubmed search identified 34 articles related to the topic of the review. Among the identified literature, thirteen articles report findings related to cellular functions of NEAT1 and eight articles are the investigations of physiological functions of NEAT1. The remaining thirteen articles are studies of the roles of NEAT1 in cancers. CONCLUSION: Recent advances in NEAT1 studies reveal the multifunctional roles of NEAT1 in various biological processes, which are beyond its role in nuclear paraspeckles. Recent studies also indicate that dysregulation of NEAT1 function contributes to the development and progression of various cancers. More investigations will be needed to address the detailed mechanisms regarding how NEAT1 executes its cellular and physiological functions and how NEAT1 dysregulation results in tumorigenesis, and to explore the potential of NEAT1 as a target in cancer diagnosis, prognosis and therapy. PMID- 29033982 TI - Effects of multiwalled carbon nanotube surface modification and purification on bovine serum albumin binding and biological responses. AB - The potential diagnostic and therapeutic applications such as drug delivery of multi-walled carbon nanotubes (MWCNTs) are being increasingly explored due to their unique mechanical, chemical and biological properties. Carboxylation of MWCNTs has been widely used to improve the solubility in aqueous systems, and for further functionalization with biologically active moieties. Purity of carboxylated MWCNTs is of great importance in nanomedicine. An important consideration is that oxidation debris is generated during the process of carboxylation, which can be removed by base washing. We hypothesized that surface modification as well as further purification by debris removal may alter physicochemical properties of MWCNTs and their ability to bind proteins. In this study, we utilized pristine MWCNT carboxylated MWCNTs (F-MWCNTs) and base-washed carboxylated MWCNTs (BW-F-MWCNTs) to examine formation of a bovine serum albumin (BSA) protein corona and impact on biological responses. We found that carboxylation increased the capability of F-MWCNTs to bind BSA, and base washing further increased this binding by 41% implying that purification of F-MWCNTs is an important consideration in biological applications. The BSA protein corona decreased the hydrodynamic size of MWCNTs by nearly 50% because the coating improved colloidal behavior. The effect was significantly less pronounced for F MWCNTs and BW-F-MWCNTs because they were highly dispersible to begin with. Functionalization increased cellular uptake by both rat aortic endothelial cells (RAEC) and macrophage-like murine cells (RAW264.7), while base washing showed results similar to the functionalized analog. Interestingly, BSA binding downregulated mRNA levels of interleukin-6 (IL-6) and heme oxygenase 1 (Hmox1) in RAEC cells but upregulated the expression of IL-6 and Hmox1 in RAW264.7 cells, indicating the dependence of cell types in biological responses to MWCNTs. Overall, our study demonstrated that surface modification as well as further purification impacted the interaction of MWCNTs with proteins and subsequent cellular responses. Interestingly, while the corona associated with the F-MWCNTs and BW-F-MWCNTs were significantly different, their respective cellular uptake and biological responses were similar. This implied that surface functionalization played a more important role than surface corona. PMID- 29033983 TI - Sensor-Based Technique for Manually Scanned Hand-Held Optical Coherence Tomography Imaging. AB - Hand-held optical coherence tomography (OCT) imaging probes offer flexibility to image sites that are otherwise challenging to access. While the majority of hand held imaging probes utilize galvanometer- or MEMS-scanning mirrors to transversely scan the imaging beam, these probes are commonly limited to lateral fields-of-view (FOV) of only a few millimeters. The use of a freehand manually scanned probe can significantly increase the lateral FOV. However, using the traditional fixed-rate triggering scheme for data acquisition in a manually scanned probe results in imaging artifacts due to variations in the scan velocity of the imaging probe. These artifacts result in a structurally inaccurate image of the sample. In this paper, we present a sensor-based manual scanning technique for OCT imaging, where real-time feedback from an optical motion sensor is used to trigger data acquisition. This technique is able to circumvent the problem of motion artifacts during manual scanning by adaptively altering the trigger rate based on the instantaneous scan velocity, enabling OCT imaging over a large lateral FOV. The feasibility of the proposed technique is demonstrated by imaging several biological and nonbiological samples. PMID- 29033984 TI - Are food allergic consumers ready for informative precautionary allergen labelling? AB - Precautionary allergen labelling (PAL) has resulted in consumer confusion. Previous research has shown that interpretive labels (using graphics, symbols, or colours) are better understood than the traditional forms of labels. In this study, we aimed to understand if consumers would use interpretive labels (symbol, mobile phone application and a toll-free number) with or without medical advice that was advocated by the food industry rather than the normal PAL. This is relevant information for industry and clinicians as it provides an insight into the food allergic perception regarding PAL. PMID- 29033985 TI - The Effects of Acupressure on Pain Severity in Female Nurses with Chronic Low Back Pain. AB - BACKGROUND: Low back pain causes physical and psychological impacts among nurses. This study aimed to investigate the effects of acupressure on the severity of pain in chronic low back pain in female nurses. MATERIALS AND METHODS: This study is a single-blinded randomized clinical trial conducted among 50 nurses suffering from chronic low back pain. After simple sampling, participants were randomly assigned into acupressure and sham groups using lottery method (25 patients in each group). In the experimental group, the intervention was performed by the researcher three times a week throughout a 3-week period. The sham group received placebo interventions. Data was collected through VAS questionnaire before, immediately after, 2 weeks, and 4 weeks after performing intervention. Data analysis was conducted using SPSS version 18 using descriptive and inferential statistical methods. RESULTS: There was no significant difference in the mean pain severity scores in the pre-interventions phase between the groups (P = 0.63), however, a significant difference was observed Immediately, 2 weeks, and 4 weeks after performing intervention. Further, the mean pain severity scores in intervention group significantly decreased compared to the sham group (P = 0.000). CONCLUSIONS: Acupressure on specific points was proved to reduce pain. Thus, acupressure can be used as nonmedicament, inexpensive, and without side effects treatment in reducing pain. PMID- 29033986 TI - Women Coping Strategies towards Menopause and its Relationship with Sexual Dysfunction. AB - BACKGROUND: Paying attention to sexual dysfunction and its coping strategies is essential owing to its impact on mental health in postmenopausal women and their families. This study aimed to determine the relationship between women coping strategies toward the process of menopause and sexual dysfunction in menopausal women. MATERIALS AND METHODS: This is a cross-sectional study in which 233 married menopausal women were sampled in the first 5 years after cessation of menstrual cycle using health records in the health centers in Isfahan in 2015. The method of data collection was a demographic characteristics form, sexual function questionnaire of Rosen et al., along with a researcher-made coping strategies questionnaire. The validity and reliability of these instruments were assessed, and the resulting data were analyzed utilizing inferential statistical tests (t-test and Chi-square test) and SPSS 16 software. RESULTS: According to the results of this study, the relative frequency of sexual dysfunction in menopausal women is 67.42%. The mean score of the avoidance strategy in people with overall sexual dysfunction was significantly higher than the group without disorder (P < 0.001). The mean of coping strategies of social support seeking (P < 0.001), problem-solving (P = 0.016), and target replacement strategy (P = 0.004) were significantly lower than that in the group without disorder. CONCLUSIONS: In line with the findings of this study, problem-oriented strategies such as social support, problem solving, and target replacement are the best strategies for decreasing sexual dysfunction or increasing sexual satisfaction. These results emphasize the reinforcement of health personnel skills in teaching approach of these strategies to this group of women. PMID- 29033987 TI - Dietary Practices and Nutritional Profile of Female Nurses from Government Hospitals in Delhi, India. AB - BACKGROUND: Nursing is a demanding profession and nurses face a considerable degree of stress at work that can adversely influence their dietary practices and nutritional status. The current study was designed to conduct a preliminary investigation of the dietary practices and nutritional profile of nurses from government hospitals in Delhi. MATERIALS AND METHODS: A cross-sectional descriptive study was carried out among 80 female nurses aged between 25 and 39 years from government hospitals. Data on demographic profile and dietary practices were gathered using a questionnaire-cum-interview schedule. Nutrient intake of the participants was determined using a 2-day 24-hour diet recall method, and adequacy of intake of nutrients was assessed using the Nutrient Adequacy Ratio approach. Weight, height, and waist circumference were recorded and the body mass index (BMI) and waist-to-height ratio (WHtR) were computed. RESULTS: Findings revealed that though majority of nurses were involved in rotating shift duties in their hospitals, more than two-thirds of them had more or less appropriate dietary practices. Intake of most nutrients, except iron, vitamin A, vitamin B12, dietary folate, and riboflavin ranged from fairly adequate to adequate among nearly 85% of the nurses. Approximately 70% of the nurses were categorized as overweight and obese and had a WHtR above 0.52. CONCLUSIONS: The study indicated that most female nurses in government hospitals in Delhi had appropriate dietary practices and nutrient intakes but still had high BMI and WHtR, which increased their vulnerability to health problems. PMID- 29033988 TI - Comparing the Effect of Auriculotherapy and Vitamin B6 on the Symptoms of Premenstrual Syndrome among the Students who Lived in the Dorm of Isfahan University of Medical Sciences. AB - BACKGROUND: Premenstrual syndrome (PMS) is a series of physical and psychological symptoms before menstruation which its prevalence around the world has been reported to be 80%. Consumption of vitamin B6 is a common treatment for this syndrome, and this study was conducted to compare the effect of auriculotherapy and vitamin B6 on the symptoms of premenstrual syndrome. MATERIALS AND METHODS: This study was a clinical trial. Eighty-four female students who lived at the university dorm were randomly selected and allocated into two groups of 42. The first group received auriculotherapy (10 sessions) for two menstrual cycles and the second group consumed 40 mg of vitamin B6 daily from a week before their menstruation for two menstrual cycles. The severity of symptoms was recorded for both groups during two cycles before the intervention and two cycles after the intervention. Data gathering tool was a 28-question, questionnaire to assess the severity of symptoms of premenstrual syndrome based on DSM-IV. RESULTS: The mean score of symptoms in the auriculotherapy group in the first and second cycles was 26.70 (19.49) and 24.76 (17.07), respectively, and in the vitamin B6 group, was 22.60 (10.87) and 24.17 (14.15), respectively, which showed a significant difference compared to before the intervention (P = 0.001). However, comparing the total score of symptoms in the first and second cycles after the intervention between both groups showed no significant difference. CONCLUSIONS: Auriculotherapy, similar to vitamin B6, decreases the severity of PMS symptoms. PMID- 29033989 TI - Effectiveness of Back Massage on Sleep Pattern among Patients with Congestive Cardiac Failure. AB - BACKGROUND: Sleep plays an important role in congestive cardiac failure (CCF). Back massage reduces anxiety, discomfort, and physical suffering in CCF patients. Study objective is to assess sleep pattern in CCF patients before and after back massage. MATERIALS AND METHODS: A quasi-experimental study was conducted in Pravara Rural hospital, Loni, India over 4 months in 2016. Thirty CCF patients were included in the study with purposive sampling. Nurse investigator performed 20-min back massage thrice daily, 5 min for each step from the day of admission till discharge. In back massage, effleurage, stroking, kneading, and assessment of effectiveness was recorded using the Pittsburg sleep quality index. RESULTS: Thirty CCF patients were included, out of which individuals aged >65, 56-65, and 35-45 years age group were 40%, 24%, and 13%, respectively. Twenty-four had left and 6 had right heart failure. Distribution of mean and standard deviation of pretest for sleep quality was 9.50 (3.14), indicating poor sleep quality. Posttest, the mean score was 4.47 (0.89), indicating good quality sleep. Eleven patients had >8 h of sleep, 15 patients had 6-8 h of sleep, whereas 4 patients had less than 6 h of sleep pretest. Posttest, 22 patients had >8 h and the remaining had 6-8 h of sleep. CONCLUSIONS: Back massage technique is safe and cost-effective in CCF patients, by which the quality and duration of sleep is improved. It can be a part of the standard treatment. PMID- 29033990 TI - Investigating the Relation between Women's Body Image and Unconsummated Marriage. AB - BACKGROUND: Unconsummated marriage is considered to be one of the complicated sexual issues that lead to multiple complications and problems for couples as well as the society. It is thought that this disorder is more common in traditional cultures and some religions such as Islam, Hinduism, and Judaism. The aim of this study was to determine the relation between women's body image and unconsummated marriage. MATERIALS AND METHODS: This was a case-control study which was conducted among 50 women who had an unconsummated marriage (case group) and 100 women who had a consummated marriage (control group) in Isfahan, Iran during 2015-2016. Data were collected using the Multidimensional Body-Self Relations Questionnaire (MBSRQ). The data were analyzed using descriptive and inferential statistical tests. RESULTS: The total score of body image and all its components had no significant difference between both the groups of the case and the control (P > 0.05). CONCLUSIONS: Considering that no relation was found between body image and unconsummated marriage and the religious culture of the Iranian society with conservative sexual norms, investigating unconsummated marriage with emphasis on cultural factors is recommended. Hence, such sexual disorders would be avoided and the number of affected people and challenges can be decreased. PMID- 29033992 TI - Patient Safety Culture in Intensive Care Units from the Perspective of Nurses: A Cross-Sectional Study. AB - BACKGROUND: One of the goals of nursing is providing safe care, prevention of injury, and health promotion of patients. Patient safety in intensive care units is threatened for various reasons. This study aimed to survey patient safety culture from the perspective of nurses in intensive care units. MATERIALS AND METHODS: This cross-sectional study was conducted in 2016. Sampling was done using the convenience method. The sample consisted of 367 nurses working in intensive care units of teaching hospitals affiliated to Isfahan University of Medical Sciences. Data collection was performed using a two-part questionnaire that included demographic and hospital survey on Patient Safety Culture (HSOPSC) questionnaire. Data analysis was done using descriptive statistics (mean and standard deviation). RESULTS: Among the 12 dimensions of safety culture, the nurses assigned the highest score to "team work within units" (97.3%) and "Organizational learning-continuous improvement" (84%). They assigned the least score to "handoffs and transitions"(21.1%), "non-punitive response to errors" (24.7%), "Staffing" (35.6%), "Communication openness" (47.5%), and "Teamwork across units" (49.4%). CONCLUSIONS: The patient safety culture dimensions have low levels that require adequate attention and essential measures of health care centers including facilitating teamwork, providing adequate staff, and developing a checklist of handoffs and transitions. Furthermore, to increase reporting error and to promote a patient safety culture in intensive care units, some strategies should be adopted including a system-based approach to deal with the error. PMID- 29033991 TI - Comparison of Nurses and Parents' Viewpoints Regarding the Needs of Parents of Premature Infants in Neonatal Intensive Care Units. AB - BACKGROUND: The birth of a premature infant and her/his hospitalization can cause the parents to experience a variety of needs. Understanding the needs of parents by nurses can lead to provision of high quality care to premature infants. This study aimed to compare the parents' and nurses' viewpoints regarding parents' needs in the neonatal intensive care units (NICU). MATERIALS AND METHODS: In this descriptive cross-sectional study, 63 nurses, 120 mothers, and 120 fathers, who met the inclusion criteria, participated. Nurses were selected through a census method and parents through a simple convenience sampling method. Data were gathered using a researcher-made questionnaire and were analyzed using descriptive-analytic statistical methods in the Statistical Package for the Social Sciences software version 16. RESULTS: From the viewpoint of mothers, the need for assurance with a mean score of 87.4 was the most important and the need for support with a mean score of 71.37 was the least important need. From the perspective of fathers, the need for assurance with a mean score of 78.5 was the most important and the need for support with a mean score of 51.20 was the least important need. From the viewpoint of the nurses, the need for assurance with a mean score of 77.6 was the most important and the need for support with a mean score of 59.77 was the least important need. The mean scores of the needs of mothers in all subscales were higher than that of the fathers' and nurses' (P < 0.001). CONCLUSIONS: From the viewpoint of nurses, the scores of parents' needs were significantly less than that of the parents' for all subscales. It is suggested that appropriate education programs be provided for nurses regarding how they can understand parents' needs to provide high quality care. PMID- 29033993 TI - Information Processing in Nursing Information Systems: An Evaluation Study from a Developing Country. AB - BACKGROUND: In recent years, information technology has been introduced in the nursing departments of many hospitals to support their daily tasks. Nurses are the largest end user group in Hospital Information Systems (HISs). This study was designed to evaluate data processing in the Nursing Information Systems (NISs) utilized in many university hospitals in Iran. METHODS AND MATERIALS: This was a cross-sectional study. The population comprised all nurse managers and NIS users of the five training hospitals in Khorramabad city (N = 71). The nursing subset of HIS-Monitor questionnaire was used to collect the data. Data were analyzed by the descriptive-analytical method and the inductive content analysis. RESULTS: The results indicated that the nurses participating in the study did not take a desirable advantage of paper (2.02) and computerized (2.34) information processing tools to perform nursing tasks. Moreover, the less work experience nurses have, the further they utilize computer tools for processing patient discharge information. The "readability of patient information" and "repetitive and time-consuming documentation" were stated as the most important expectations and problems regarding the HIS by the participating nurses, respectively. CONCLUSIONS: The nurses participating in the present study used to utilize paper and computerized information processing tools together to perform nursing practices. Therefore, it is recommended that the nursing process redesign coincides with NIS implementation in the health care centers. PMID- 29033994 TI - Effect of Dates in Late Pregnancy on the Duration of Labor in Nulliparous Women. AB - BACKGROUND: Long-term delivery is an important significant issue which is associated with mortality and fetal and maternal disorders. Based on the previous studies, consumption of dates affects uterine contractions and duration of delivery processes. This study aimed to study the effect of date consumption in late pregnancy on the duration of delivery processes in nulliparous women in 2013. MATERIALS AND METHODS: This randomized clinical trial was conducted among 182 nulliparous women 18-35 years who presented to OmAlBanin Hospital in Mashhad in 2013. The comparison has been made between 91 pregnant women who consumed 70 76 g dates daily from the 37th week of pregnancy and 91 pregnant women who did not consume dates. Data collection tool was a questionnaire and a checklist of daily dates' intake. Data were analyzed using the Statistical Package for the Social Sciences software and statistical tests - chi-square and Mann-Whitney test, and P value <0.05 was considered significant. RESULTS: The average length of active phase (P = 0.0001), length of second phase (P = 0.0001), and third phase (P = 0.004) in two groups had statistically significant difference. The average length of the second phase (P = 0.03) and the third phase (P = 0.02) in case of spontaneous start of delivery in the intervention group was significantly lower than the control group. Use of oxytocin to accelerate delivery had a significant difference between the two groups (P < 0.001). CONCLUSION: According to the results of this study, consuming dates in late pregnancy was effective in decreasing length of labor processes and reduced the need of oxytocin for labor acceleration. Thus, it is recommended to consume dates in women without contraindications. PMID- 29033996 TI - Effects of Implementing the Alexander Technique on Enjoying the Sense of Motherhood in the Postpartum Period. AB - BACKGROUND: The broad concept of maternal well-being includes psychological concepts, social aspects, and aspects of becoming a mother. The present study aimed to investigate the effects of implementing the Alexander technique on enjoying the sense of motherhood. MATERIALS AND METHODS: This study was a clinical trial conducted in two phases. In the first phase, using the exploratory and confirmatory factor analysis, 226 mothers were asked to undergo a scale test of enjoying the sense of motherhood after childbirth. In the second phase, 88 pregnant women were divided into two experimental groups. The data collection tool was a researcher-made questionnaire about enjoying the sense of motherhood. Independent samples t-test, Mann-Whitney test, Chi-square test, Fisher's exact test, analysis of variance test, Box test, and Levine test were used to analyze the data. RESULTS: Results of this study showed that the mean scores of the constructs of enjoying pregnancy (P > 0.001), motherhood, and child care satisfaction (P > 0.001) in the experimental group were significantly higher than the control group. Moreover, the construct of trusting their own abilities to cope with maternal duties (P > 0.01) did not show significant differences between the two groups. CONCLUSIONS: The findings indicated that the Alexander technique can promote mothers' psychological well-being and their pleasure of becoming a mother and the related constructs. Results also revealed that using this technique, educating and recommending pregnant women to use this technique will be beneficial. PMID- 29033995 TI - Effect of Environmental and Behavioral Interventions on Pain Intensity in Preterm Infants for Heel Prick Blood Sampling in the Neonatal Intensive Care Unit. AB - BACKGROUND: Recent researches suggest that preterm infants understand pain and stress. Because of the wide range of effects of pain on infants, the present study was conducted on the effect of environmental and behavioral interventions on pain due to heel-prick blood sampling in preterm infants. MATERIALS AND METHODS: A clinical trial was conducted among 32 infants with gestational age of 32-37 weeks in the intervention and control groups. The effects of noise reduction by earplugs, light reduction by blindfolds, reduction of nursing manipulation, and creation of intrauterine position for neonates, 30 minutes before taking blood samples until 30 minutes after it, were measured during the intervention stage. Data were collected using the Neonatal Infant Pain Scale (NIPS) in 5 stages (before intervention, 2 minutes before sampling, during the sampling, and 5 minutes and 30 minutes after the sampling). The data were analyzed using analysis of variance (ANOVA) and paired t-test in SPSS software. RESULTS: The paired t-test results showed no significant differences between the control and intervention stages in terms of pain scores at base time (P = 0.42) and 2 minutes before sampling (P = 0.12). However, at the sampling time (P = 0.0), and 5 minutes (P = 0.001) and 30 minutes after the sampling (P = 0.001), mean pain score in the intervention stage was significantly less than that in the control stage. CONCLUSIONS: Based on the findings, environmental and behavioral interventions reduced pain and facilitated heel-prick blood sampling in preterm infants. PMID- 29033997 TI - The Effects of Cognitive-Behavioral Stress Management on Nurses' Job Stress. AB - BACKGROUND: Job stress is a prevalent and costly problem in different working conditions. Stress can degrade care quality in nurses and elevate their willingness to leave the job. This study aimed to determine the effects of cognitive-behavioral stress management on nurses' job stress. MATERIALS AND METHODS: In this quasi-experimental study with a control group, 40 nurses from the educational hospitals in Birjand who had completed a job stress questionnaire with a score of more than 100 were selected and randomly allocated to two groups. The intervention group underwent eight 2-hour sessions training of cognitive behavioral stress management (one session per week), whereas the control group had no such training. Two months after the training, the two groups completed the hospital job stress questionnaire again. The data were analyzed using Statistical Package for the Social Sciences (version 19) by Chi-square, Fisher exact test, independent t-test, and paired t-tests at 0.05 significance level. RESULTS: Stress mean score and standard deviation before and after the intervention were 3.48 (0.22) and 2.8 (0.2) in the intervention group and 3.48 (0.21) and 3.56 (0.2) in the control group, respectively. In the intervention group, the overall mean scores of stress and its dimensions significantly decreased after the intervention (P < 0.05). CONCLUSIONS: Given the significant decrease in the nurses' stress using cognitive-behavioral stress management, this approach can be suggested to be taught to nurses in hospitals in order to decrease their stress and increase their efficiency. PMID- 29033998 TI - Effect of Kangaroo Care Combined with Music on the Mother-premature Neonate Attachment: A Randomized Controlled Trial. AB - BACKGROUND: Premature birth may complicate the development and quality of the mother-infant attachment relationship. Music and kangaroo care are two common complementary cares performed in the neonatal intensive care unit (NICU). The present study investigated the effect of kangaroo care combined with music on the mother-premature neonate attachment. MATERIALS AND METHODS: In this clinical trial, 64 mothers with premature neonates were selected and assigned to the control and study groups through random allocation. In the control group, kangaroo care, and in the study group, kangaroo care combined with music was adopted. The level of mother-premature neonate attachment was measured and compared before and after the intervention in both the groups using Avant's Maternal Attachment Assessment Scale. RESULTS: There was a significant increase in the mean overall score of attachment in the kangaroo care combined with music group (70.72 (11.46)) after the intervention compared to the kangaroo care without music group (53.61 (9.76)). CONCLUSIONS: The mean overall score of mother neonate attachment in the kangaroo care combined with music group was higher than the kangaroo care group. This difference can be related to the effectiveness of music combined with kangaroo care. PMID- 29033999 TI - Reminding the Health Team About What Companions of the Patients Undergoing Gynecological Surgery Should Know: A Qualitative Study. AB - BACKGROUND: Patients' family members often do not receive sufficient information, especially because the reproductive system of women is considered a taboo, providing information becomes problematic. The aim of the current study was to explore the informational-educational needs of companions of the patients who were undergoing gynecological surgery. MATERIALS AND METHODS: This study was conducted using inductive and conventional content analysis method. For data collection, 34 semi-structured in-depth interviews were performed at a gynecology and obstetrics center with purposeful sampling and maximum variation. The participants included patients' companions, nurses, physicians, patients, and service personnel. RESULTS: Qualitative content analysis extracted 8 categories, 2 main categories of "Informational needs of companions" and "Educational needs of companions" and a final theme of "the need for knowing." CONCLUSIONS: According to the results, "the need for knowing" is one of the most important needs of the patients' companions during hospitalization. Knowing companions' needs in the hospital and understanding its deficiencies would assist health care professionals, especially authorities, in providing high-quality care and developing programs to meet the informational needs of patients' companions. PMID- 29034000 TI - Ethnographic Exploration of Empowerment to Improve Elderly Residents' Quality of Life. AB - BACKGROUND: Evidence underscores that empowerment is central to improve the elderly residents' quality of life. In truth, empowerment is a process through which individuals gain better control over their life. The aim of this study was to explore how perceived empowerment influence on the quality of life among elderly Malay residents. MATERIALS AND METHODS: A focus ethnographic approach was employed in a Malaysian residential home between May 2011 and January 2012. Data were gathered from participant observations, field notes, in-depth interviews, and exploring related documents. RESULTS: The analysis of the data gathered in the current study resulted in the development of three themes - social life and its requirements, caregivers' skills empowerment, and listening and supporting. CONCLUSIONS: Findings of the study provide new insights that are useful in charting new guideline for care providers and policy makers to improve the elderly residents' quality of life. PMID- 29034001 TI - Correction to: mouse mammary tumour virus (MMTV) and human breast cancer with neuroendocrine differentiation. AB - [This corrects the article DOI: 10.1186/s13027-017-0135-8.]. PMID- 29034002 TI - Lumbopelvic rhythm in the sagittal plane: A review of the effects of participants and task characteristics. AB - OBJECTIVES: Abnormalities of lumbopelvic coordination have been suggested to relate to risk of developing low back pain. The objective of this study is to review and summarize the findings of studies that have implemented and reported on lumbopelvic rhythm during trunk forward bending and backward return. METHODS: The PUBMED and CINAHL databases were searched for studies related to LPR using appropriate keywords. The references of each study from the database search were further investigated to identify any missed study. RESULTS: The findings includes results related to lumbopelvic rhythm, and how it varies due to participant characteristics such as age, gender, and presence of low back pain as well as due to variations in the experimental procedures such as pace of motion, presence of external load, and muscle fatigue. CONCLUSION: In general, the magnitude of lumbar contribution is smaller in people with low back pain, in the elderly and females, as well as with greater pace of motion, but is larger with greater external load or back muscle fatigue. The compiled data in this review are expected to serve as a foundation for implementation of this kinematic-based measure in the conduct of future research. PMID- 29034003 TI - Cellulase hyper-production by Trichoderma reesei mutant SEU-7 on lactose. AB - BACKGROUND: The induction of cellulase production by insoluble carbon source cellulose was a common and efficient strategy, but has some drawbacks, such as difficult fermentation operation, substantial cellulase loss, long fermentation time, and high energy-consumption, resulting in high cost of cellulase production in industry. These drawbacks can be overcome if soluble carbon sources are utilized as the inducers for cellulase production. However, until now the induction efficiency of most soluble carbon sources, especially lactose and glucose, is still inferior to cellulose despite extensive efforts have been made by either optimizing the fermentation process or constructing the recombinant strains. Therefore, strain improvement by metabolic engineering for high induction efficiency of soluble carbon sources is of great interest. RESULTS: Trichoderma reesei mutant SEU-7 was constructed from T. reesei RUT-C30 with the overexpression of endogenous gene beta-glucosidase (BGL1) by insertional mutagenesis via Agrobacterium tumefaciens-mediated transformation (AMT). Compared to RUT-C30, SEU-7 displays substantially enhanced activities of both cellulase and hemicellulase when grown on either lactose or cellulose. The induction efficiency with lactose was found to be higher than cellulose in strain SEU-7. To the best of our knowledge, we achieved the highest FPase activity in SEU-7 in both batch culture (13.0 IU/mL) and fed-batch culture (47.0 IU/mL) on lactose. Moreover, SEU-7 displayed unrivaled pNPGase activity on lactose in both batch culture (81.0 IU/mL) and fed-batch culture (144.0 IU/mL) as compared to the other reported T. reesei strains in the literature grown in batch or fed-batch experiments on cellulose or lactose. This superiority of SEU-7 over RUT-C30 improves markedly the saccharification ability of SEU-7 on pretreated corn stover. The overexpression of gene BGL1 was found either at the mRNA or at the protein level in the mutant strains with increased cellulase production in comparison with RUT-C30, but only SEU-7 displayed much higher expression of gene BGL1 on lactose than on cellulose. Two copies of gene BGL1 were inserted into the chromosome of T. reesei SEU-7 between KI911141.1:347357 and KI911141.1:347979, replacing the original 623-bp fragment that is not within any genes' coding region. The qRT-PCR analysis revealed that the mRNA levels of both cellulase and hemicellulase were upregulated significantly in SEU-7, together with the MFS transporter CRT1 and the XYR1 nuclear importer KAP8. CONCLUSIONS: Recombinant T. reesei SEU-7 displays hyper-production of both cellulase and hemicellulase on lactose with the highest FPase activity and pNPGase activity for T. reesei, enabling highly efficient saccharification of pretreated biomass. For the first time, the induction efficiency for cellulase production by lactose in T. reesei was reported to be higher than that by cellulose. This outperformance of T. reesei SEU-7, which is strain-specific, is attributed to both the overexpression of gene BGL and the collateral mutation. Moreover, the increased transcription levels of cellulase genes, the related transcription factors, and the MFS transporter CRT1 contribute to the outstanding cellulase production of SEU-7. Our research advances strain improvement to enhance the induction efficiency of soluble carbon sources to produce cost-effective cellulase and hemicellulase in industry. PMID- 29034004 TI - Genetic engineering of the Calvin cycle toward enhanced photosynthetic CO2 fixation in microalgae. AB - BACKGROUND: Photosynthetic microalgae are emerging as potential biomass feedstock for sustainable production of biofuels and value-added bioproducts. CO2 biomitigation through these organisms is considered as an eco-friendly and promising alternative to the existing carbon sequestration methods. Nonetheless, the inherent relatively low photosynthetic capacity of microalgae has hampered the practical use of this strategy for CO2 biomitigation applications. RESULTS: Here, we demonstrate the feasibility of improving photosynthetic capacity by the genetic manipulation of the Calvin cycle in the typical green microalga Chlorella vulgaris. Firstly, we fused a plastid transit peptide to upstream of the enhanced green fluorescent protein (EGFP) and confirmed its expression in the chloroplast of C. vulgaris. Then we introduced the cyanobacterial fructose 1,6-bisphosphate aldolase, guided by the plastid transit peptide, into C. vulgaris chloroplast, leading to enhanced photosynthetic capacity (~ 1.2-fold) and cell growth. Molecular and physiochemical analyses suggested a possible role for aldolase overexpression in promoting the regeneration of ribulose 1,5-bisphosphate in the Calvin cycle and energy transfer in photosystems. CONCLUSIONS: Our work represents a proof-of-concept effort to enhance photosynthetic capacity by the engineering of the Calvin cycle in green microalgae. Our work also provides insights into targeted genetic engineering toward algal trait improvement for CO2 biomitigation uses. PMID- 29034005 TI - In vitro and in vivo modeling of lipid bioaccessibility and digestion from almond muffins: The importance of the cell-wall barrier mechanism. AB - This study compares in vitro and in vivo models of lipid digestion from almond particles within a complex food matrix (muffins) investigating whether the cell wall barrier regulates the bioaccessibility of nutrients within this matrix. Muffins containing small (AF) or large (AP) particles of almond were digested in triplicate using an in vitro dynamic gastric model (DGM, 1 h) followed by a static duodenal digestion (8 h). AF muffins had 97.1 +/- 1.7% of their lipid digested, whereas AP muffins had 57.6 +/- 1.1% digested. In vivo digestion of these muffins by an ileostomy volunteer (0-10 h) gave similar results with 96.5% and 56.5% lipid digested, respectively. The AF muffins produced a higher postprandial triacylglycerol iAUC response (by 61%) than the AP muffins. Microstructural analysis showed that some lipid remained encapsulated within the plant tissue throughout digestion. The cell-wall barrier mechanism is the main factor in regulating lipid bioaccessibility from almond particles. PMID- 29034006 TI - Canagliflozin reduces epicardial fat in patients with type 2 diabetes mellitus. AB - BACKGROUND: It is unknown whether canagliflozin, a selective sodium glucose co transporter 2 inhibitor, reduces epicardial adipose tissue (EAT) thickness, which is associated with insulin resistance and is a risk factor for coronary artery disease. METHODS AND RESULTS: We administered 100 mg of canagliflozin for 6 months to 13 patients with type 2 diabetes mellitus. We evaluated glycemic control, visceral adipose tissue (VAT) area and subcutaneous adipose tissue (SAT) area, and skeletal muscle mass by using impedance methods, and EAT thickness by using echocardiography. Canagliflozin treatment for 6 months decreased hemoglobin A1c level from 7.1 +/- 0.5% to 6.7 +/- 0.6% (P < 0.05) and decreased EAT thickness from 9.3 +/- 2.5 to 7.3 +/- 2.0 mm (P < 0.001), along with a trend of decreasing VAT and SAT area. No association was found between any of these changes. CONCLUSION: Canagliflozin reduced EAT thickness in patients with type 2 diabetes mellitus independent of its effect on lowering blood glucose, suggesting that canagliflozin may have an effect in preventing cardiovascular events in these patients (UMIN000021327). PMID- 29034007 TI - Microfluidic Iterative Mechanical Characteristics (iMECH) Analyzer for Single Cell Metastatic Identification. AB - This study describes the development of a microfluidic biosensor called the iterative mechanical characteristics (iMECH) analyzer which enables label-free biomechanical profiling of individual cells for distinction between metastatic and non-metastatic human mammary cell lines. Previous results have demonstrated that pulsed mechanical nanoindentation can modulate the biomechanics of cells resulting in distinctly different biomechanical responses in metastatic and non metastatic cell lines. The iMECH analyzer aims to move this concept into a microfluidic, clinically more relevant platform. The iMECH analyzer directs a cyclic deformation regimen by pulling cells through a test channel comprised of narrow deformation channels and interspersed with wider relaxation regions which together simulate a dynamic microenvironment. The results of the iMECH analysis of human breast cell lines revealed that cyclic deformations produce a resistance in non-metastatic 184A1 and MCF10A cells as determined by a drop in their average velocity in the iterative deformation channels after each relaxation. In contrast, metastatic MDA-MB-231 and MDA-MB-468 cells exhibit a loss of resistance as measured by a velocity raise after each relaxation. These distinctive modulatory mechanical responses of normal-like non-metastatic and metastatic cancer breast cells to the pulsed indentations paradigm provide a unique bio signature. The iMECH analyzer represents a diagnostic microchip advance for discriminating metastatic cancer at the single-cell level. PMID- 29034008 TI - Surface-ligand effect on radiosensitization of ultrasmall luminescent gold nanoparticles. AB - Gold nanoparticles (AuNPs) could serve as potential radiotherapy sensitizers because of their exceptional biocompatibility and high-Z material nature; however, since in vitro and in vivo behaviors of AuNPs are determined not only by their particle size but also by their surface chemistries, whether surface ligands can affect their radiosensitization has seldom been investigated in the radiosensitization of AuNPs. By conducting head-to-head comparison on radiosensitization of two kinds of ultrasmall (~2 nm) near-infrared (NIR) emitting AuNPs that are coated with zwitterionic glutathione and neutral polyethylene glycol (PEG) ligands, respectively, we found that zwitterionic glutathione coated AuNPs (GS-AuNPs) can reduce survival rates of MCF-7 cells under irradiation of clinically used megavoltage photon beam at low dosage of ~2.25 Gy. On the other hand, PEG-AuNPs can serve as a radiation-protecting agent and enabled MCF-7 cells more resistant to the irradiation, clearly indicating the key role of surface chemistry in radiosensitization of AuNPs. More detailed studies suggested that such difference was independent of cellular uptake and its efficiency, but might be related to the ligand-induced difference in photoelectron generation and/or interactions between AuNPs and X-ray triggered reactive oxygen species (ROS). PMID- 29034010 TI - Developing a framework of gastronomic systems research to unravel drivers of food choice. AB - Nutritional and dietary interventions and the introduction of novel food products and ingredients require a thorough understanding of the drivers of food choice, which are embedded in local context and culture. We developed a framework of "gastronomic systems research" (GSR) to understand culture-specific consumer food choice, and contextualise it to a target population of urban, middle- to high income Filipino consumers to assess the domestic niche market potential of traditional rice varieties in the Philippines. The GSR framework was contextualised through expert elicitation involving chefs and nutritionists, and validated through a consumer survey conducted during a food exposition. Using the GSR framework, we determined indicative rice consumption patterns of the target population and the specific rice quality attributes they require for specific rice-based dishes and rice consumption occasions. The GSR framework also reveals possible entry points for nutritional and dietary interventions and the introduction of novel food products and ingredients. The GSR framework, therefore, has the potential to aid policymakers and food value chain stakeholders in designing culture-sensitive and context-appropriate interventions not only to help consumers improve their diets, but also to help farmers access niche markets for novel food products and ingredients and thereby improve their livelihoods and preserve cultural heritage. PMID- 29034011 TI - The development of iconicity in children's co-speech gesture and homesign. AB - Gesture can illustrate objects and events in the world by iconically reproducing elements of those objects and events. Children do not begin to express ideas iconically, however, until after they have begun to use conventional forms. In this paper, we investigate how children's use of iconic resources in gesture relates to the developing structure of their communicative systems. Using longitudinal video corpora, we compare the emergence of manual iconicity in hearing children who are learning a spoken language (co-speech gesture) to the emergence of manual iconicity in a deaf child who is creating a manual system of communication (homesign). We focus on one particular element of iconic gesture - the shape of the hand (handshape). We ask how handshape is used as an iconic resource in 1-5-year-olds, and how it relates to the semantic content of children's communicative acts. We find that patterns of handshape development are broadly similar between co-speech gesture and homesign, suggesting that the building blocks underlying children's ability to iconically map manual forms to meaning are shared across different communicative systems: those where gesture is produced alongside speech, and those where gesture is the primary mode of communication. PMID- 29034009 TI - A multicenter, randomized study of decitabine as epigenetic priming with induction chemotherapy in children with AML. AB - BACKGROUND: Decitabine is a deoxycytidine nucleoside derivative inhibitor of DNA methyltransferases, which has been studied extensively and is approved for myelodysplastic syndrome in adults but with less focus in children. Accordingly, we conducted a phase 1 multicenter, randomized, open-label study to evaluate decitabine pre-treatment before standard induction therapy in children with newly diagnosed AML to assess safety and tolerability and explore a number of biologic endpoints. RESULTS: Twenty-four patients were fully assessable for all study objectives per protocol (10 in Arm A = epigenetic priming induction, 14 in Arm B = standard induction). All patients experienced neutropenia and thrombocytopenia. The most common grade 3 and 4 non-hematologic adverse events observed were gastrointestinal toxicities and hypophosphatemia. Plasma decitabine PK were similar to previously reported adult data. Overall CR/CRi was similar for the two arms. MRD negativity at end-induction was 85% in Arm A versus 67% in Arm B patients. DNA methylation measured in peripheral blood over the course of treatment tracked with blast clearance and matched marrow aspirates at day 0 and day 21. Unlike end-induction marrow analyses, promoter methylation in blood identified an apparent reversal of response in the lone treatment failure, 1 week prior to the patient's marrow aspirate confirming non-response. Decitabine induced effects on end-induction (day 35-43 following initiation of treatment) marrows in Arm A were reflected by changes in DNA methylation in matched paired marrow diagnostic aspirates. CONCLUSIONS: This first-in-pediatrics trial demonstrates that decitabine prior to standard combination chemotherapy is feasible and well tolerated in children with newly diagnosed AML. Pre-treatment with decitabine may represent a newer therapeutic option for pediatric AML, especially as it appears to induce important epigenetic alterations. The novel biological correlates studied in this trial offer a clinically relevant window into disease progression and remission. Additional studies are needed to definitively assess whether decitabine can enhance durability responses in children with AML. TRIAL REGISTRATION: NCT01177540. PMID- 29034012 TI - Auditory word recognition across the lifespan: Links between linguistic and nonlinguistic inhibitory control in bilinguals and monolinguals. AB - Recent research suggests that bilingual experience reconfigures linguistic and nonlinguistic cognitive processes. We examined the relationship between linguistic competition resolution and nonlinguistic cognitive control in younger and older adults who were either bilingual or monolingual. Participants heard words in English and identified the referent among four pictures while eye movements were recorded. Target pictures (e.g., cab) appeared with a phonological competitor picture (e.g., cat) and two filler pictures. After each eye-tracking trial, priming probes assessed residual activation and inhibition of target and competitor words. When accounting for processing speed, results revealed that age related changes in activation and inhibition are smaller in bilinguals than in monolinguals. Moreover, younger and older bilinguals, but not monolinguals, recruited similar inhibition mechanisms during word identification and during a nonlinguistic Stroop task. Results suggest that, during lexical access, bilinguals show more consistent competition resolution and recruitment of cognitive control across the lifespan than monolinguals. PMID- 29034013 TI - Cardiovascular Events in Hemodialysis Patients: Challenging against Vascular Calcification. AB - Particularly in patients with hemodialysis, cardiovascular mortality rate is extremely high. Polyvascular diseases develop at an early stage of chronic kidney disease (CKD). Pathophysiology includes insulin resistance and/or imbalance between nitric oxide (NO) and endothelin bioavailability as well as oxidative stress. The understanding in pathophysiology of vascular calcification and strategic treatment is a critical issue to achieve favorable outcome for the patients with CKD. In this article, we aim to review the cardiovascular disease for the patients with CKD with a particular emphasis on the clinical aspects of polyvascular disease. Finally, we address to detect microcirculatory impairment and eradicate vascular calcification as early as possible prior to renal replacement therapy. (This is a translation of Jpn J Vasc Surg 2016; 25: 359 365.). PMID- 29034015 TI - A New Technique for Femoral Venous Access in Infants Using Arterial Injection Venous Return Guidance. AB - Objectives: Although venography guidance is helpful for central venous catheter placement, it is sometimes difficult to place a peripheral intravenous cannula for enhancement. We designed a new technique for establishing femoral venous access using venography guidance in the return phase of peripheral arteriography. This new technique was named arterial injection venous return guidance. Here we assessed the efficacy and safety of arterial injection venous return guidance. Methods: We reviewed data of 29 infants less than 6 months old undergoing catheter intervention at our institute in 2014. Of the 29 patients, femoral venous cannulation was performed using arterial injection venous return guidance in 5 patients, venography in 20 patients, and the landmark method in 4 patients. The technical success rates and incidence of complications were compared. Results: The overall success rates were 100% in the arterial injection venous return-guided and venography-guided groups. The mean procedure duration and mean contrast material injection time were similar between the groups. The contrast effect on the femoral vein in the arterial injection venous return-guided group was lower than that in the venography-guided group, but adequate for surgery. The overall complication rate was 17%, and obstruction of previously placed intravenous catheters was the most common complication. Conclusions: Therefore, the arterial injection venous return guidance technique was as safe and efficient as venography for establishing venous access. PMID- 29034016 TI - Improved Outcomes for Ruptured Abdominal Aortic Aneurysms Using Integrated Management Involving Endovascular Clamping, Endovascular Replacement, and Open Abdominal Decompression. AB - Objective: Endovascular repair has become the treatment of choice for ruptured abdominal aortic aneurysms (RAAAs). To improve surgical outcomes, preoperative management is important. In 2011, we introduced integrated management, which involves endovascular aneurysm repair, stabilization of hemodynamics by endovascular clamping, and open abdominal decompression to address abdominal compartment syndrome (ACS). Methods: To evaluate the efficacy of this management strategy, 62 patients who had undergone emergency surgery for an RAAA were analyzed retrospectively: group A (n=39), where an old strategy was used, and group B (n=23), where integrated management was introduced. Patient characteristics and 30-day mortality rates were compared between the two groups. Results: The average patient age was 67.7 years and 74.7 years for groups A and B, respectively (P=0.032). Group B patients required more frequent use of vasopressors (P=0.035). Other patient characteristics did not differ between the two groups. The duration of surgery was significantly shorter in group B than in group A (P=0.001). The total amount of transfused blood did not differ between the two groups. No patients showed symptoms of ACS. Early mortality rates were 12.8% and 8.7% in groups A and B, respectively. The number of wound infections was significantly fewer in group B than in group A. Conclusion: Although group B patients were significantly older and had a higher rate of vasopressor use, early mortality was improved in both groups. Morbidity was significantly better in group B with respect to the duration of surgery and number of wound infections than in group A. PMID- 29034014 TI - Improving the Outcome of Vein Grafts: Should Vascular Surgeons Turn Veins into Arteries? AB - Autogenous vein grafts remain the gold standard conduit for arterial bypass, particularly for the treatment of critical limb ischemia. Vein graft adaptation to the arterial environment, i.e., adequate dilation and wall thickening, contributes to the superior performance of vein grafts. However, abnormal venous wall remodeling with excessive neointimal hyperplasia commonly causes vein graft failure. Since the PREVENT trials failed to improve vein graft outcomes, new strategies focus on the adaptive response of the venous endothelial cells to the post-surgical arterial environment. Eph-B4, the determinant of venous endothelium during embryonic development, remains expressed and functional in adult venous tissue. After surgery, vein grafts lose their venous identity, with loss of Eph B4 expression; however, arterial identity is not gained, consistent with loss of all vessel identity. In mouse vein grafts, stimulation of venous Eph-B4 signaling promotes retention of venous identity in endothelial cells and is associated with vein graft walls that are not thickened. Eph-B4 regulates downstream signaling pathways of relevance to vascular biology, including caveolin-1, Akt, and endothelial nitric oxide synthase (eNOS). Regulation of the Eph-B4 signaling pathway may be a novel therapeutic target to prevent vein graft failure. PMID- 29034017 TI - Surgical Management of Mycotic Aortic Aneurysms. AB - Purpose: A mycotic aneurysm is an uncommon disease associated with a high mortality rate when managed surgically. This study reviewed our experiences in the surgical management of mycotic aortic aneurysms. Methods: In total, 26 patients who underwent surgery for a mycotic aneurysm were retrospectively reviewed. The mycotic aneurysms involved the thoracic aorta in 9 patients, the thoracoabdominal aorta in 4 patients, and the abdominal aorta in 13 patients. An overt aortic rupture in the mediastinum or retroperitoneal space was detected in 4 patients. Patients were classified into one of two groups, febrile or afebrile, and background characteristics, surgical intervention, and early and late mortalities were all compared. Results: There were 19 patients who underwent open surgery, and 7 patients underwent endovascular repair. No significant differences in the clinical characteristics were found between the two groups; however, the incidence of postoperative complications was significantly higher in the febrile group than in the afebrile group (P=0.024). Overall mortality was 15.4% (4/26), and 30-day mortality was 7.7% (2/26). Conclusion: Although febrile patients had a higher incidence of postoperative complications, surgical mortality from a mycotic aneurysm was within an acceptable range. Each patient should be thoroughly evaluated and treated on a case-by-case basis, using conventional open repair, endovascular repair, or a combination of both approaches. PMID- 29034018 TI - Bailout Endovascular Stent Grafting for an Ascending Aortic Pseudoaneurysm Using an Infrarenal Aortic Extension Cuff. AB - We report successful thoracic endovascular repair of a pseudoaneurysm rupture in the ascending aorta using infrarenal endovascular devices after an aortic valve replacement. Complete exclusion of the pseudoaneurysm was achieved with no endoleak or postoperative complications. Despite limitations of the current technology, this endovascular technique was a relatively less invasive, feasible lifesaving surgical option for the repair of a pseudoaneurysm of the ascending aorta with a diameter <=32 mm. PMID- 29034020 TI - Persistent Sciatic Artery Aneurysm with Limb Ischemia: A Report of Two Cases. AB - We report two cases of persistent sciatic artery (PSA) aneurysm with limb ischemia. Physicians who treat peripheral artery disease should be aware that PSA is a very rare congenital malformation of the lower extremities that is potentially hazardous, and that revascularization should be performed when a PSA aneurysm is treated. PMID- 29034019 TI - Hybrid Repair of an Abdominal Aortic Aneurysm: Debranching with Endovascular Aneurysm Repair in a Patient with Horseshoe Kidney. AB - Abdominal aortic aneurysm (AAA) with associated horseshoe kidney (HSK) poses a technical challenge when performing conventional open surgical repair because of possible complications including renal infarction, neuralgia, and collecting system disruption. Endovascular aortic repair (EVAR) is considered the first-line treatment for this pathology, allowing for aneurysm repair without isthmus bisection. However, whether to sacrifice commonly presenting aberrant renal arteries during EVAR is a point of controversy. We report a case in which hybrid repair was performed for AAA to preserve aberrant renal vasculature in a patient with HSK. PMID- 29034021 TI - Endovascular Repair for Kommerell's Diverticulum and Right-Sided Aortic Arch. AB - A 74-year-old man with hoarseness was diagnosed with a right-sided aortic arch and Kommerell's diverticulum by computed tomography (CT). The diverticulum had a maximum diameter of 33 mm, and surgical intervention was chosen because of the possibility of rupture. A right common carotid to right subclavian artery bypass was constructed, stent-graft was placed after the branching of the right common carotid artery, and coil embolization of the diverticulum was performed via left brachial artery. No leaks were found on postoperative CT. Symptoms disappeared and the diverticulum became smaller soon after surgery. Thoracic endovascular aortic repair (TEVAR) for Kommerell's diverticulum was safe and effective. PMID- 29034022 TI - Mediastinal Perigraft Seroma after Repair of Type A Dissection with a Polyester Graft. AB - Perigraft seromas are uncommon after surgical repair of the thoracic aorta with woven polyester grafts. A 50-year-old woman required redo sternotomy for the treatment of a perigraft seroma 6 months after total arch replacement for acute type A dissection. After removal of a jelly-like mass, a prosthetic graft was covered with fibrin glue, and the bilateral pleurae beside the graft were opened widely for drainage of effusion into the bilateral pleural cavities. Bacterial culture and laboratory and histological examination of the content confirmed the final diagnosis of perigraft seroma. No evidence of recurrence was observed 4 months after drainage. PMID- 29034023 TI - Retrograde Ascending Aortic Dissection after Stent Grafting for Stanford Type B Aortic Dissection with Severe Limb Ischemia. AB - We report a rare case of retrograde Stanford type A aortic dissection after endovascular repair for complicated Stanford type B aortic dissection. A 45-year old man presented with a sudden onset of back pain and was transferred to our hospital. Computed tomography demonstrated acute Stanford type B aortic dissection with lower limb ischemia. Emergency endovascular surgery was planned for repair of the Stanford type B aortic dissection. The patient suddenly developed recurrent chest pain 10 days after the initial procedure. Computed tomography revealed retrograde Stanford type A aortic dissection involving the ascending aorta and aortic arch. The patient underwent a successful emergency total aortic arch replacement. PMID- 29034024 TI - Successful Complete Surgical Resection of a Large Venous Malformation of the Lower Extremity: A Case Report. AB - Venous malformations (VMs) are the most common type of vascular malformations, resulting from errors in vascular morphogenesis. Because of the wide variety in their presentations, selecting the appropriate treatment, especially for large VMs, may be challenging. Herein, we report a case of a 59-year-old man with a large VM in the lower extremity who achieved favorable outcomes by complete surgical resection. Even large VMs can be successfully treated with surgery when patients are properly selected. An accurate and careful evaluation is essential for achieving optimal outcome in patients with VMs. PMID- 29034025 TI - Replacement of the Thoracoabdominal Aorta after Endovascular Abdominal Aneurysm Repair for Ruptured Infected Aneurysm: A Case Report. AB - A 73-year-old man underwent emergency endovascular abdominal aneurysm repair (EVAR) for a ruptured infected abdominal aortic aneurysm. Two years after EVAR, he was admitted with a spiking fever and left lower back pain. Computed tomography scan revealed not only recurrent graft infection with psoas abscess but also infection around the orifice of the superior mesenteric artery. Because conservative medical therapy with antibiotics could not control the infection, we performed complete removal of the infected stent graft, debridement of psoas abscess, and in situ replacement of the thoracoabdominal aorta using rifampicin soaked prosthetic grafts, followed by the omental flap. He was discharged with no complications. PMID- 29034026 TI - Invaginated Graft Insertion Anastomosis for a Type Ib Endoleak at the Supraceliac Aorta Following Thoracic Endovascular Aortic Repair. AB - Open surgery for a type Ib endoleak after thoracic endovascular aortic repair is associated with some knacks and pitfalls, particularly in cases wherein the distal edge of a stent graft is located at just supraceliac aorta and the renovisceral segment and infrarenal aorta do not require surgical intervention. Here we describe the invaginated graft insertion technique to provide an easy and secure anastomosis in such clinical situations. This procedure may be feasible for anastomosis between a prosthetic vascular graft and a previously deployed stent graft when the location of the anastomosis is distant from the surface of the skin incision with a narrow and limited surgical view. PMID- 29034029 TI - ERRATUM. AB - [This corrects the article on p. 267 in vol. 9.]. PMID- 29034028 TI - Endovascular Treatment for Kommerell's Diverticulum with a Right-Sided Aortic Arch. AB - We report a rare case of type A dissection involving a right-sided aortic arch with an aberrant left subclavian artery originating from Kommerell's diverticulum in a 76-year-old woman. Endovascular treatment for Kommerell's diverticulum including intimal tear of the dissection was performed. At the 5-year follow-up, the patient was doing well, with no endoleak or dilatation of the Kommerell's diverticulum. PMID- 29034027 TI - Retrograde Use of Frontrunner Catheter in Superficial Femoral Artery for Flushing Long Segment Occlusions Involving Distal Common Femoral Artery. AB - We present the case of an 81-year-old female with flush occlusion of the superficial femoral artery (SFA) and percutaneous transluminal angioplasty. Initially, the antegrade approach failed due to flush occlusion without stump. Hard, round surfaced, calcific, and eccentric plaque of the ostium of SFA was also present, which involved distal common femoral artery (CFA). Thus, we successfully used a Frontrunner catheter for retrograde reentry at the lower position of the CFA. Various treatment strategies involving Frontrunner and atherectomy devices could make percutaneous procedures possible in femoropopliteal occlusive disease, involving the CFA. PMID- 29034030 TI - ERRATUM. AB - [This corrects the article on p. 277 in vol. 9.]. PMID- 29034031 TI - Coronary Artery Bypass Surgery in End-Stage Renal Disease Patients. AB - The number of patients requiring hemodialysis is continuously increasing around the world. Hemodialysis affects patient quality of life and it is also associated with a higher risk for cardiovascular events. In addition to traditional risk factors for cardiovascular events such as hypertension, hyperlipidemia, and diabetes, hemodialysis is associated with hyperphosphatemia, chronic inflammation, vascular calcification, and anemia which accelerate atherosclerosis, vascular stiffness, and cardiac ischemia. Treatment strategy for coronary revascularization in this progressive disease remains controversial. However, a systematic treatment including medical therapy and complete revascularization through a less invasive strategy should be considered in addressing this problem. This review discusses the epidemiology, vascular pathology and current treatment options in patients with end-stage renal disease requiring coronary revascularization. PMID- 29034033 TI - Novel Anticoagulant Therapy of Venous Thromboembolism: Current Status and Future Directions. AB - The first-line treatment of venous thromboembolisms (VTE) is anticoagulant therapy, and unfractionated heparin and warfarin are used in Japan. However, as both drugs require dosage adjustments that are difficult, VTE recurrences occur relatively frequently, and hemorrhagic complications are extremely common. The parenteral factor Xa inhibitor fondaparinux and the direct oral anticoagulants (DOACs) edoxaban, rivaroxaban, and apixaban have recently become available as treatments for VTE in Japan. These novel anticoagulants have more stable effects than traditional therapies and are thus considered safer and more effective than the traditional agents. Especially, DOACs offer improved long-term prevention of recurrence in patients with unprovoked VTE. The initiation of DOAC monotherapy soon after VTE onset leads to shorter hospital stays than required with the older therapies and allows for outpatient treatment. DOACs have additional benefits, such as safer anticoagulant therapy for cancer patients. These novel anticoagulants are extremely promising, but there is a current lack of evidence in areas such as dosing regimens for highly vulnerable patients and dosing for long-term use, and alternative regimens for each DOAC. PMID- 29034032 TI - Current Perspective on Hemodialysis Patients with Peripheral Artery Disease. AB - The prevalence of peripheral artery disease is substantially higher in patients on chronic hemodialysis than in the general population. The presence of calcified lesions characteristic of hemodialysis patients has an adverse influence on the initial success and long-term outcomes of both surgical bypass and endovascular therapy. Although the selection of revascularization strategy depends on whether an autologous vein is available and if the patient has a life expectancy of at least two years, it is difficult to predict the life expectancy in a real-world clinical situation. Endovascular therapy may be appropriate for many hemodialysis patients with poor general condition because of the high risk of perioperative complications and the poor long-term prognosis. Deciding which treatment option is more appropriate should be done on a case-by-case basis, especially in hemodialysis patients with critical limb ischemia. PMID- 29034034 TI - Pathophysiology of Venous Thromboembolism with Respect to the Anatomical Features of the Deep Veins of Lower Limbs: A Review. AB - Here the pathophysiology of venous thromboembolism is reviewed with respect to the anatomical features of the deep veins of lower limbs. A thrombus is less likely to form in the thigh veins compared with that in the calf veins; however, clinical symptoms are more likely to appear in the thigh veins owing to vascular occlusion. When a patient is bedridden, thrombosis is more likely to occur in the intramuscular vein, which mainly depends on muscular pumping and the venous valve, rather than in the three crural branches, which mainly depends on the pulsation of the accompanying artery. Thrombi are prone to be generated in the soleal vein compared with those in the gastrocnemius vein because of the vein and muscle structures. A soleal vein thrombosis grows toward the proximal veins along the drainage veins. To prevent a sudden pulmonary thromboembolism-related death in bedridden patients, preventing soleal vein thrombus formation and observing the thrombus proximal propagation via the drainage veins are clinically important. When deep vein thrombosis occurs, avoiding embolization and sequela caused by the thrombus organization is necessary. PMID- 29034036 TI - Intervention for Varicose Veins of Lower Extremities Lowers the Brain Natriuretic Peptide Values in Varicose Vein Patients. AB - Objective: To evaluate the relationship between varicose veins and heart failure, both of which cause edema of lower extremities. Materials and Methods: We enrolled 150 patients who underwent intervention for varicose veins of lower extremities between December 2012 and October 2015, and perioperative data were retrospectively investigated. Results: Of the 150 patients, 104 (69.3%) were females. The mean age was 66.8+/-10.6 years (27-85 years). Eighty (53.3%) patients had varicose veins in both legs. In all patients, the postoperative (brain natriuretic peptide (BNP) value was significantly lower than the preoperative BNP value (pre : post=39.3 : 30.5 pg/dl, P<0.0001). In patients with higher BNP values (>100 pg/dl), the postoperative BNP values were significantly lower than the preoperative BNP values (pre : post=192.7 : 166.1 pg/dl, P<0.0001). Body weights of the patients decreased differently between pre- and post-operation (pre : post=61.3 : 59.4 kg, P=0.0008). Conclusion: Intervention for varicose veins of lower extremities might be considered clinically useful for the improvement of cardiac function. PMID- 29034035 TI - Surgical Embolectomy for Acute Pulmonary Thromboembolism. AB - Acute pulmonary thromboembolism is a catastrophic event, especially for hospitalized patients. The prognosis of pulmonary thromboembolism depends on the degree of pulmonary arterial occlusion. The mortality of massive pulmonary embolism is reportedly as high as 25% without cardiopulmonary arrest and 65% with cardiopulmonary arrest. In patients with unstable hemodynamics due to pulmonary thromboembolism, surgical pulmonary embolectomy is indicated for patients with a contraindication to thrombolysis, failed catheter therapy, or failed thrombolysis. Thrombolytic therapy adds an additional burden on patients who are at risk of potential hemorrhagic complications. It is also indicated if patients are already on a veno-arterial extra-corporate membrane oxygenator for circulatory collapse or cardiopulmonary arrest. The outcome for patients who require cardiopulmonary resuscitation for longer than 30 minutes is poor. Therefore, early triage for massive and sub-massive pulmonary embolism is crucial. A team approach including a cardiovascular surgeon may be effective to save critically ill patients. Prompt removal of emboli reduces the right ventricular load with quick recovery of cardiopulmonary function in the early postoperative period. A recent series reported excellent results, with in hospital mortality of less than 10%. Surgical pulmonary embolectomy is an effective, safe, and easy procedure to save critical patients due to pulmonary thromboembolism. PMID- 29034037 TI - Characteristics of Abdominal Aortic Aneurysm in Japanese Patients Aged 50 Years or Younger. AB - Objective: We investigated the characteristics and surgical outcomes of abdominal aortic aneurysm (AAA), which typically occurs in elderly persons, in Japanese patients aged 50 years or younger. Materials and Methods: Clinical records of 999 patients who underwent open or endovascular repair for AAA at our hospital between 2007 and 2015 were reviewed to identify the clinical characteristics and surgical outcomes of young patients with AAA. The cohort included 14 patients aged 50 years or younger (mean, 40.4 years; young group) and 985 patients aged older than 50 years (mean, 72.8 years; old group). Results: Marfan syndrome, prior aortic dissection, and a history of aortic surgery were more prevalent in the young group, and 50% of the patients in the young group had dissecting aneurysms. All patients in the young group underwent open repair. Overall in hospital mortality rates were 7.1% (1/14) and 1.9% (19/985) in the young and old groups, respectively (P=0.67). Seven-year survival and aortic event-free survival rates in the young group were 82.5%+/-11.5%, and 71.2+/-14.5%, respectively. Conclusion: AAA in patients aged 50 years or younger tended to be associated with Marfan syndrome, a history of aortic surgery, and prior aortic dissection. Early outcomes of AAA among young patients are acceptable, but close postoperative monitoring is important. PMID- 29034038 TI - Catheter-Directed Thrombolysis in the Treatment of Acute Ischemia in Lower Extremities Is Safe and Effective, Especially with Concomitant Endovascular Treatment. AB - Objective: To evaluate the influence of pre-procedural characteristics on immediate and late results as well as the safety of catheter-directed thrombolysis (CDT) in acute ischemia of the lower extremity. Materials and Methods: A retrospective study comprising 249 patients treated by CDT from January 2006 to December 2012. Outcomes were primary patency, haemorrhagic complications, amputation and mortality. Results: Primary patency for CDT alone was 68%, for CDT plus endovascular treatment 87% and for successful CDT with supplementary surgery 62% giving an overall primary patency of 76%. Two (0.8%) patients suffered from cerebral haemorrhage during CDT. We found a significant correlation between 30 day amputation rate and no visual distal run-off at CDT start (OR 2.31; CI95% 1.09-4.91; p-value=0.02) and onset of symptoms to CDT start of 8-14 days (OR 4.09; CI95% 1.42-11.81; p-value=0.01). Lack of visualized distal run-off was also associated with a significant risk of 30 day mortality (OR 5.84; CI95% 1.26-27.00; p-value=0.02). Conclusion: Our results show that CDT is a feasible and safe treatment option especially when combined with angioplasty +/- stent. However, no distal run-off at primary angiography is associated with higher rates of amputation during follow-up and 30 day mortality. PMID- 29034039 TI - Histological Reactions and the In Vivo Patency Rates of Small Silk Vascular Grafts in a Canine Model. AB - Objective: To evaluate in vivo patency rates of silk fibroin (SF) vascular grafts and resulting histological reactions in a canine model. Methods: To generate 3.5 mm inner diameter vessels, a combination of plaited silk fibers were wound with cocoon filaments and subsequently coated with an SF solution. The resulting SF grafts (n=35) were implanted into the carotid arteries of male beagles (age, 1-2 years; body weight: 9.0-10.5 kg). Expanded polytetrafluoroethylene (4-mm inner diameter, ePTFE) grafts (n=5) were used as controls. Graft patency was monitored via ultrasonography with histological changes analyzed via microscopic examination. Results: Compared with animals that received the ePTFE grafts, animals that received SF grafts exhibited the same thickness of luminal layers and fibrin accumulation and collagen fiber replacement with endothelialization at 3 months post-implantation via histological examination. The patency rates of the SF and the ePTFE grafts at 6 months post-implantation were 7.8% and 0%, respectively. Conclusion: This canine model study demonstrated that SF grafts induce unique histological reactions but fail to achieve long-term patency. PMID- 29034040 TI - Infected Thoracic Aortic Aneurysm Caused by Helicobacter cinaedi. AB - The causative organism is not identified in some cases of infected aneurysms, a life-threatening condition. A 68-year-old man presented with chest/back pain and a 1-year history of intermittent fever and fatigue. Computed tomography revealed a thoracic aortic aneurysm. After several negative blood cultures, he was eventually diagnosed with an infected aneurysm caused by Helicobacter cinaedi via gene analysis of an aortic tissue specimen. As H. cinaedi is a low-virulence bacterium, infection with this pathogen should be suspected in cases of aortic aneurysms with unidentified causative organism and a long history of subjective symptoms. Detailed examinations, including polymerase chain reaction, should be conducted in such cases. PMID- 29034041 TI - Successful Endovascular Repair of Mycotic Aortic Pseudoaneurysm Followed by Aortoesophageal Fistula. AB - Mycotic aneurysm of the aorta is a rare, but life-threatening pathology. In recent years, endovascular stent graft placement has been introduced as an effective alternative for treating infected aortic aneurysms. A 64-year-old woman with a history of paraplegia due to spinal cord injury was referred to our institute with fever and blood-tinged sputum. Computed tomography (CT) scan showed an 11-cm pseudoaneurysm arising from the proximal descending aorta, which was normal 1 month ago at the previous CT scan. The patient underwent thoracic endovascular aortic repair for the pseudoaneurysm, deployed with a transiliac access approach, and received antibacterial medical therapy. On postoperative day 11, she developed signs of infection, caused by an aortoesophageal fistula. The infection was treated conservatively with parenteral nutrition and antibiotic administration. The patient had an uneventful recovery and was discharged on postoperative day 113. At 2-year follow-up, she had a normal physical examination and CT angiography showed a marked reduction of the pseudoaneurysm sac. We report a successful endovascular stent grafting and subsequent medical treatment in a patient with a mycotic thoracic aortic pseudoaneurysm followed by a postoperative aortoesophageal fistula. PMID- 29034042 TI - Description of the Surgical Strategy Used for the Treatment of a Complex Disease: Report of a Case. AB - We report a rare case in which a patient required three surgeries with competing priorities. In a 68-year-old man diagnosed with an abdominal aortic aneurysm (AAA), computed tomography (CT) revealed an infrarenal AAA, unusual thickening of the sigmoid colon that suggested cancer, and a filling defect in the left atrium. We considered the disease stage, which affects prognosis, and the risk of complications that could interfere with the treatment of the other pathologies and developed a three-stage surgical strategy: (i) endovascular aortic repair, (ii) sigmoid colectomy, and (iii) resection of the left atrial mass. The patient's postsurgical recovery was uneventful. PMID- 29034043 TI - Suture Line Dehiscence after Endovascular Aneurysm Repair in a Patient with Marfan Syndrome. AB - A 68-year-old man with Marfan syndrome developed de-novo leakage after endovascular aneurysm repair of a Dacron graft. Findings at subsequent reoperation suggested that the rebound force on the endograft generated by marked longitudinal deformation in the Dacron graft may have placed stress on the suture line, leading to partial dehiscence. The Dacron graft seemed to provide a stable proximal landing zone. However, the strong tendency of some endograft devices to return to their original shape may apply stress that affected weakened regions of the native aorta. PMID- 29034044 TI - Bronchial Artery Aneurysm Treated Using Aortic Stent Graft Alone: A Case Report. AB - A 72-year-old woman with a history of malignant lymphoma was referred to our hospital for the treatment of a bronchial artery aneurysm. Computed tomography (CT) scan showed a round, 30 mm-diameter fusiform aneurysm with two tortuous inflow arteries. We deployed thoracic stent grafting to cover the orifice of the two inflow arteries without transcatheter bronchial arterial embolization. Postoperative CT scan revealed complete thrombosis of the aneurysm. Although further follow-up is mandatory, this may be considered a viable treatment option in cases wherein the bronchial artery aneurysm is anatomically difficult to treat. PMID- 29034045 TI - Severe Obstructive Calcification of the Descending Aorta: A Case Report of "Coral Reef Aorta". AB - An 82-year-old man suffering from lower back pain and dyspnea presented to our institute in a state of shock. Computed tomography showed subtotal occlusion of the descending aorta with massive atherosclerotic calcification. As the proximal portion of the superior mesenteric artery was obstructed, emergency bypass from the right axillary artery to the bilateral external iliac arteries was performed, but the patient died 2 days later. Autopsy revealed that reddish-brown and verrucous masses obstructed the descending aorta, and high-grade thickening of the intima and extensive deposits of calcium in the lumina and medial layer were detected in the descending aorta histologically. PMID- 29034046 TI - In Situ Reconstruction with Extended Debridement in Patients with Mycotic Abdominal Aortic Aneurysms. AB - The surgical outcomes in patients with mycotic aortic aneurysm are still poor. In situ reconstruction and extra-anatomical bypass are the 2 main surgical options used in these patients, both of which have postoperative complications: recurrence of infection and aortic stump blowout, respectively. We performed in situ reconstruction in 25 consecutive patients with mycotic abdominal aortic aneurysms together with extended debridement using an irrigation device, omental flap coverage, rifampicin-soaked prosthetic graft, and sufficient antibiotics administration. There were 3 in-hospital mortalities; however, no infection- or procedure-related adverse events were observed in other cases during the mid-term follow-up period. PMID- 29034048 TI - Northeastern Section of the American Urological Association 69th Annual Meeting, Savannah, GA: Scientific Program. PMID- 29034047 TI - Processing of Internal and External Signals for Performance Monitoring in the Context of Emotional Faces. AB - Performance monitoring can be based on internal or external signals. We recorded event-related potentials (ERPs) to investigate whether relating performance to external signals affects internal performance monitoring. Thirty participants performed a task in which responses were followed by faces whose expressions were partially contingent upon performance. Instructions given to half of the participants mentioned a link between task performance and the upcoming face expression. Instructed participants showed smaller error-related negativity (Ne/ERN) to erroneous responses and larger N170 to faces as compared to participants in the not-instructed group. In addition, we observed a correlation between DeltaNe/ERN and P1-latency benefit for angry faces after errors. Taken together, processing of internally generated signals for performance monitoring is reduced by instructions referring to an emotional face. Furthermore, we relate the correlation between the magnitude of internal monitoring and facilitation in processing angry faces to priming induced by the negative affective meaning of errors. PMID- 29034049 TI - Postmortem Toxicology Findings of Acetyl Fentanyl, Fentanyl, and Morphine in Heroin Fatalities in Tampa, Florida. AB - In the last two years, an epidemic of 40 fatal heroin overdose cases has occurred in the Tampa area of Florida. Of these cases, 14 involved fentanyl and acetyl fentanyl. Victim demographics, case histories, toxicology findings, and causes and manners of death for all 40 deaths are presented. In 26 deaths in which acetyl fentanyl or fentanyl were not involved, free and total peripheral blood morphine concentrations were consistent with fatal heroin intoxications, averaging 0.16 mg/L and 0.35 mg/L, respectively. In the heroin cases with fentanyl present (n=7), the average free morphine concentration was 0.040 mg/L, the average total morphine concentration was 0.080 mg/L, and the average fentanyl concentration was 0.012 mg/L. In the cases with heroin, fentanyl, and acetyl fentanyl (n=3), the average free morphine concentration was 0.010 mg/L, the average total morphine concentration was 0.030 mg/L, the average fentanyl concentration was 0.018 mg/L, and the average acetyl fentanyl concentration was 0.008 mg/L. In the cases involving only acetyl fentanyl (without heroin or fentanyl, n=4), the average acetyl fentanyl concentration was 0.47 mg/L and the average acetyl norfentanyl concentration was 0.053 mg/L. The presented cases, with associated drug concentrations, case histories, demographics, and causes and manners of death may help provide assistance with the interpretation of the postmortem findings. Based on case circumstances, autopsy results, and toxicology results, it is evident that fentanyl and/or acetyl fentanyl, when present, contributed to the cause of death. PMID- 29034050 TI - Separation of sperm cells from samples containing high concentrations of white blood cells using a spiral channel. AB - Microfluidic technology has potential to separate sperm cells from unwanted debris while improving the effectiveness of assisted reproductive technologies (ART). Current clinical protocol limitations regarding the separation of sperm cells from other cells/cellular debris can lead to low sperm recovery when the sample contains a low concentration of mostly low motility sperm cells and a high concentration of unwanted cells/cellular debris, such as in semen samples from patients with pyospermia [high white blood cell (WBC) semen]. This study demonstrates label-free separation of sperm cells from such semen samples using inertial microfluidics. The approach does not require any externally applied forces except the movement of the fluid sample through the instrument. Using this approach, it was possible to recover not only any motile sperm, but also viable less-motile and non-motile sperm cells with high recovery rates. Our results demonstrate the ability of inertial microfluidics to significantly reduce WBC concentration by flow focusing of target WBCs within a spiral channel flow. The estimated sample process time was more rapid (~5 min) and autonomous than the conventional method (gradient centrifuge sperm wash; ~1 h). A mixture of sperm/WBC was injected as the device input and 83% of sperm cells and 93% of WBCs were collected separately from two distinct outlets. The results show promise for enhancing sperm samples through inertial flow processing of WBCs and sperm cells that can provide an advantage to ART procedures such as sample preparation for intrauterine insemination. PMID- 29034051 TI - On-chip cell labelling and washing by capture and release using microfluidic trap arrays. AB - Flow cytometry analysis requires a large amount of isolated, labelled, and purified cells for accurate results. To address the demand for a large quantity of cells prepared in a timely manner, we describe a novel microfluidic trap structure array for on-chip cell labelling, such as intracellular and extracellular labelling, and subsequent washing and release of cells. Each device contains [Formula: see text] trap structures, which made the preparation of large numbers of cells [Formula: see text] possible. The structure has a streamlined shape, which minimizes clogging of cells in capture and release steps. The trap structure arrays are built and tested using leukocytes, with different load flow speeds, incubation times, and release flow speeds. ~85% of cells are captured independent of the input flow speed. The release efficiency depends on the incubation time, with over ~80% of captured cells released for up to 20 min incubation, and on-chip labelling and washing with STYO13 are demonstrated. Qualitative models are developed as guidance for designing the proposed trap structure and to explain the increased performance over previous approaches. PMID- 29034052 TI - Microfluidic cell concentrator with a reduced-deviation-flow herringbone structure. AB - In this study, a microfluidic cell concentrator with a reduced-deviation-flow herringbone structure is proposed. The reduced-deviation-flow herringbone structure reduces the magnitude of deviation flow by a factor of 3.3 compared to the original herringbone structure. This structure shows higher recovery efficiency compared to the original herringbone structure for various particle sizes at high flow rate conditions. Using the reduced-deviation-flow herringbone structure, the experimental results show a recovery efficiency of 98.5% and a concentration factor of 3.4* at a flow rate of 100 ml/h for all particle sizes. An iterative concentration process is performed to achieve a higher concentration factor for 10.2-MUm particles and Jurkat cells. With two stages of the concentration process, we were able to achieve over 98% recovery efficiency and a concentration factor of 10-11*. Cell viability was found to be above 96% after iterative concentration. We believe that this device could be used to concentrate cells as a preparatory step for studying low-abundance cells. PMID- 29034053 TI - A 3D-printed microbial cell culture platform with in situ PEGDA hydrogel barriers for differential substrate delivery. AB - Additive manufacturing, or 3D-printing techniques have recently begun to enable simpler, faster, and cheaper production of millifluidic devices at resolutions approaching 100-200 MUm. At this resolution, cell culture devices can be constructed that more accurately replicate natural environments compared with conventional culturing techniques. A number of microfluidics researchers have begun incorporating additive manufacturing into their work, using 3D-printed devices in a wide array of chemical, fluidic, and even some biological applications. Here, we describe a 3D-printed cell culture platform and demonstrate its use in culturing Pseudomonas putida KT2440 bacteria for 44 h under a differential substrate gradient. Polyethylene glycol diacrylate (PEGDA) hydrogel barriers are patterned in situ within a 3D-printed channel. Transport of the toluidine blue tracer dye through the hydrogel barriers is characterized. Nutrients and oxygen were delivered to cells in the culture region by diffusion through the PEGDA hydrogel barriers from adjacent media or saline perfusion channels. Expression of green fluorescent protein by P. putida KT2440 enabled real time visualization of cell density within the 3D-printed channel, and demonstrated cells were actively expressing protein over the course of the experiment. Cells were observed clustering near hydrogel barrier boundaries where fresh substrate and oxygen were being delivered via diffusive transport, but cells were unable to penetrate the barrier. The device described here provides a versatile and easy to implement platform for cell culture in readily controlled gradient microenvironments. By adjusting device geometry and hydrogel properties, this platform could be further customized for a wide variety of biological applications. PMID- 29034054 TI - Tumor cell capture patterns around aptamer-immobilized microposts in microfluidic devices. AB - Circulating tumor cells (CTCs) have shown potential for cancer diagnosis and prognosis. Affinity-based CTC isolation methods have been proved to be efficient for CTC detection in clinical blood samples. One of the popular choices for affinity-based CTC isolation is to immobilize capture agents onto an array of microposts in microchannels, providing high CTC capture efficiency due to enhanced interactions between tumor cells and capture agents on the microposts. However, how the cells interact with microposts under different flow conditions and what kind of capture pattern results from the interactions have not been fully investigated; a full understanding of these interactions will help to design devices and choose experimental conditions for higher CTC capture effeciency. We report our study on their interaction and cell distribution patterns around microposts under different flow conditions. Human acute lymphoblastic leukemia cells (CCRF-CEM) were used as target cancer cells in this study, while the Sgc8 aptamer that has specific binding with CCRF-CEM cells was employed as a capture agent. We investigated the effects of flow rates and micropost shapes on the cell capture efficiency and capture patterns on microposts. While a higher flow rate decreased cell capture efficiency, we found that the capture pattern around microposts also changed, with much more cells captured in the front half of a micropost than at the back half. We also found the ratio of cells captured on microposts to the cells captured by both microposts and channel walls increased as a function of the flow rate. We compared circular microposts with an elliptical shape and found that the geometry affected the capture distribution around microposts. In addition, we have developed a theoretical model to simulate the interactions between tumor cells and micropost surfaces, and the simulation results are in agreement with our experimental observation. PMID- 29034055 TI - A STATISTICAL MODEL TO ASSESS (ALLELE-SPECIFIC) ASSOCIATIONS BETWEEN GENE EXPRESSION AND EPIGENETIC FEATURES USING SEQUENCING DATA. AB - Sequencing techniques have been widely used to assess gene expression (i.e., RNA seq) or the presence of epigenetic features (e.g., DNase-seq to identify open chromatin regions). In contrast to traditional microarray platforms, sequencing data are typically summarized in the form of discrete counts, and they are able to delineate allele-specific signals, which are not available from microarrays. The presence of epigenetic features are often associated with gene expression, both of which have been shown to be affected by DNA polymorphisms. However, joint models with the flexibility to assess interactions between gene expression, epigenetic features and DNA polymorphisms are currently lacking. In this paper, we develop a statistical model to assess the associations between gene expression and epigenetic features using sequencing data, while explicitly modeling the effects of DNA polymorphisms in either an allele-specific or nonallele-specific manner. We show that in doing so we provide the flexibility to detect associations between gene expression and epigenetic features, as well as conditional associations given DNA polymorphisms. We evaluate the performance of our method using simulations and apply our method to study the association between gene expression and the presence of DNase I Hypersensitive sites (DHSs) in HapMap individuals. Our model can be generalized to exploring the relationships between DNA polymorphisms and any two types of sequencing experiments, a useful feature as the variety of sequencing experiments continue to expand. PMID- 29034056 TI - Effects of Sterilization on Shape Memory Polyurethane Embolic Foam Devices. AB - Polyurethane shape memory polymer (SMP) foams have been developed for various embolic medical devices due to their unique properties in minimally invasive biomedical applications. These polyurethane materials can be stored in a secondary shape, from which they can recover their primary shape after exposure to an external stimulus, such as heat and water exposure. Tailored actuation temperatures of SMPs provide benefits for minimally invasive biomedical applications, but incur significant challenges for SMP-based medical device sterilization. Most sterilization methods require high temperatures or high humidity to effectively reduce the bioburden of the device, but the environment must be tightly controlled after device fabrication. Here, two probable sterilization methods (nontraditional ethylene oxide (ntEtO) gas sterilization and electron beam irradiation) are investigated for SMP medical devices. Thermal characterization of the sterilized foams indicated that ntEtO gas sterilization significantly decreased the glass transition temperature. Further material characterization was undertaken on the electron beam (ebeam) sterilized samples, which indicated minimal changes to the thermomechanical integrity of the bulk foam and to the device functionality. PMID- 29034057 TI - Design and Fabrication of a Low-Cost Three-Dimensional Bioprinter. AB - Three-dimensional (3D) bioprinting offers innovative research vectors for tissue engineering. However, commercially available bioprinting platforms can be cost prohibitive to small research facilities, especially in an academic setting. The goal is to design and fabricate a low-cost printing platform able to deliver cell laden fluids with spatial accuracy along the X, Y, and Z axes of 0.1 mm. The bioprinter consists of three subassemblies: a base unit, a gantry, and a shuttle component. The platform utilizes four stepper motors to position along three axes and a fifth stepper motor actuating a pump. The shuttle and gantry are each driven along their respective horizontal axes via separate single stepper motor, while two coupled stepper motors are used to control location along the vertical axis. The current shuttle configuration allows for a 5 mL syringe to be extruded within a work envelope of 180 mm * 160 mm * 120 mm (X, Y, Z). The shuttle can easily be reconfigured to accommodate larger volume syringes. An attachment for a laser pen is located such that printing material may be light-activated pre extrusion. Positional fidelity was established with calipers possessing a resolution to the nearest hundredth millimeter. The motors associated with the X and Y axes were calibrated to approximately 0.02 mm per motor impulse. The Z axis has a theoretical step distance of ~51 nm, generating 0.04% error over a 10 mm travel distance. The A axis, or pump motor, has an impulse distance of 0.001 mm. The volume extruded by a single impulse is dictated by the diameter of the syringe used. With a 5 mL syringe possessing an inner diameter of 12.35 mm, the pump pushes as little as 0.119 MUL. While the Z axis is tuned to the highest resolution settings for the motor driver, the X, Y, and A axes can obtain higher or lower resolution via physical switches on the motor drivers. PMID- 29034058 TI - In Situ Generated Platinum Catalyst for Methanol Oxidation via Electrochemical Oxidation of Bis(trifluoromethylsulfonyl)imide Anion in Ionic Liquids at Anaerobic Condition. AB - The bis(trifluoromethylsulfonyl)imide anion is widely used as an ionic liquid anion due to its electrochemical stability and wide electrochemical potential window at aerobic conditions. Here we report an innovative strategy by directly oxidizing bis(trifluoromethylsulfonyl)imide anion to form a radical electrocatalyst on platinum electrode at anaerobic condition. The in situ generated radical catalyst was shown to catalytically and selectively promote the electrooxidation of methanol to form methoxyl radical, in which the formation potential was drastically decreased with the existence of bis(trifluoromethylsulfonyl)imide radical. The electrochemically generated radical catalyst not only facilitates the oxidation of methanol but also provides good selectivity. The unique double layer structure of the 1-butyl-1 methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([Bmpy][NTf2]) likely excludes the diffusion of larger molar mass molecules onto the electrode surface and enables the highly selective methanol oxidation at this IL-electrode interface. Cyclic voltammetry (CV) experiments were used to systematically characterize the details of the electrochemical processes with and without methanol in several other ILs, and a mechanism of the chemical and redox processes was proposed. This study provides a promising new approach for utilizing the unique properties of ionic liquids not only as solvents and electrolytes but also as the medium for in situ generation of electrocatalysts to promote methanol redox reactions for practical applications. PMID- 29034059 TI - LCN: a random graph mixture model for community detection in functional brain networks. AB - The aim of this article is to develop a Bayesian random graph mixture model (RGMM) to detect the latent class network (LCN) structure of brain connectivity networks and estimate the parameters governing this structure. The use of conjugate priors for unknown parameters leads to efficient estimation, and a well known nonidentifiability issue is avoided by a particular parameterization of the stochastic block model (SBM). Posterior computation proceeds via an efficient Markov Chain Monte Carlo algorithm. Simulations demonstrate that LCN outperforms several other competing methods for community detection in weighted networks, and we apply our RGMM to estimate the latent community structures in the functional resting brain networks of 185 subjects from the ADHD-200 sample. We find overlap in the estimated community structure across subjects, but also heterogeneity even within a given diagnosis group. PMID- 29034060 TI - Activation of the aryl hydrocarbon receptor and risk of lymphoma subtypes. AB - The aryl hydrocarbon receptor (AhR) is a transcription factor implicated in several pathways known to be relevant in lymphomagenesis. Aim of our study was to explore the link between AhR activation and risk of lymphoma subtypes. We used a Dual-Luciferase Assay(r) and a luminometer to detect the activation of the luciferase gene, in HepG2 cells transfected with a specific reporter systems, by a 50 ml serum aliquot of cases of diffuse large B cell lymphoma (N = 108), follicular lymphoma (N = 85), chronic lymphocytic leukemia (N = 72), multiple myeloma (N = 80), and Hodgkin lymphoma (N = 94) and 357 controls who participated in the multicentre Italian study on gene-environment interactions in lymphoma etiology (ItGxE). Risk of each lymphoma subtype associated with AhR activation was calculated with polytomous logistic regression adjusting by age, gender, and study centre. The overall prevalence of AhR activation ranged 13.9-23.6% by subtype, and it varied by study area (8-39%). Risk associated with AhR activation was moderately elevated for follicular lymphoma (OR = 1.56, 95% CI 0.86, 2.80) and chronic lymphocytic leukemia (OR = 1.56, 95% CI 0.83, 2.96). Despite our inconclusive findings about the association with risk of lymphoma subtypes, we showed that the Dual-Luciferase Assay can be reliably and easily applied in population-based studies to detect AhR activation. PMID- 29034062 TI - Brownian motion in confined geometries. AB - In a great number of technologically and biologically relevant cases, transport of micro- or nanosized objects is governed by both omnipresent thermal fluctuations and confining walls or constrictions limiting the available phase space. The present Topical Issue covers the most recent applications and theoretical findings devoted to studies of Brownian motion under confinement of channel-like geometries. PMID- 29034061 TI - Association between four SNPs in IL-4 and the risk of gastric cancer in a Chinese population. AB - Gastric cancer (GC) is the 5th most prevalent cancer. The etiology of GC is still poorly understood. We performed a case-control study in a Chinese population to investigate the association of rs2243248 (-1098 G/T), rs2227284 (-33 C/T), rs2243250 (-589 T/C) and rs2070874 (-107 T/C) polymorphisms and haplotypes with the development of gastric cancer in a Chinese population. A total of 362 patients with gastric cancer and 384 controls were recruited between December 2013 and December 2015. Genotyping of rs2243248 (-1098 G/T), rs2227284 (-33 C/T), rs2243250 (-589 T/C) and rs2070874 (-107 T/C) was performed in a 384-well plate format on the sequenom MassARRAY platform, and analyzed by MALDI-TOF MS. The TC and CC genotypes of rs2243250 (-589 T/C) were associated with an increased risk of gastric cancer when compared with the TT genotype, with adjusted ORs (95% CI) of 1.52 (1.07-2.15) and 2.13 (1.30-3.51), respectively. The TTTT haplotype revealed a reduced risk of gastric cancer (OR=0.65, 95% CI=0.45-0.94). No linkage disequilibrium was found among IL-4 rs2243248, rs2227284, rs2243250 and rs2070874. In summary, our findings support a significant association of IL-4 rs2243250 polymorphism with the risk of gastric cancer in the Chinese population, and IL-4 haplotype contributes to the development of this disease. PMID- 29034063 TI - Targeting orthotopic gliomas with renal-clearable luminescent gold nanoparticles. AB - A major clinical translational challenge in nanomedicine is the potential of toxicity associated with the uptake and long-term retention of non-degradable nanoparticles (NPs) in major organs. The development of inorganic NPs that undergo renal clearance could potentially resolve this significant biosafety concern. However, it remains unclear whether inorganic NPs that can be excreted by the kidneys remain capable of targeting tumors with poor permeability. Glioblastoma multiforme, the most malignant orthotopic brain tumor, presents a unique challenge for NP delivery because of the blood-brain barrier and robust blood-tumor barrier of reactive microglia and macroglia in the tumor microenvironment. Herein, we used an orthotopic murine glioma model to investigate the passive targeting of glutathione-coated gold nanoparticles (AuNPs) of 3 nm in diameter that undergo renal clearance and 18-nm AuNPs that fail to undergo renal clearance. Remarkably, we report that 3-nm AuNPs were able to target intracranial tumor tissues with higher efficiency (2.3* relative to surrounding non-tumor normal brain tissues) and greater specificity (3.0*) than did the larger AuNPs. Pharmacokinetics studies suggested that the higher glioma targeting ability of the 3-nm AuNPs may be attributed to the longer retention time in circulation. The total accumulation of the 3-nm AuNPs in major organs was significantly less (8.4*) than that of the 18-nm AuNPs. Microscopic imaging of blood vessels and renal-clearable AuNPs showed extravasation of NPs from the leaky blood-tumor barrier into the tumor interstitium. Taken together, our results suggest that the 3-nm AuNPs, characterized by enhanced permeability and retention, are able to target brain tumors and undergo renal clearance. PMID- 29034065 TI - Development of an instrument evaluating the impact of surgeon-patient relationship in patients on sick leave. AB - Background: To date, no specific instruments exist to measure the quality of the patient-surgeon relationship despite its potential to influence clinical and economic outcomes in patients undergoing surgery for musculoskeletal disorders (MSDs). Objective: The objective was to develop and validate an instrument to assess the quality of the patient-surgeon relationship, taking into account the return to work after functional restoration surgery. Methods: The instrument development was based on literature review, cognitive interviews and expert examinations. The instrument's psychometric properties were explored in a sample of 50 French patients on sick leave with musculoskeletal disorders or hand injuries. Face validity, internal consistency and test-retest reliability were evaluated. The dimensionality of the instrument was studied using an exploratory principal component analysis. Results: The 11-item instrument showed good psychometric properties. The cognitive interviews allowed enhancing the validity of the instrument content by capturing patients' point of view. The exploratory principal component analysis demonstrated the uni-dimensionality of the instrument with the first factor accounting for 83% of the total explained variance. Conclusion:This study has developed the first instrument capable of the specific assessment of the impact of the surgeon-patient relationship on recovery, in patients with hand traumas and MSDs. PMID- 29034066 TI - Novel SPECT Technologies and Approaches in Cardiac Imaging. AB - Recent novel approaches in myocardial perfusion single photon emission CT (SPECT) have been facilitated by new dedicated high-efficiency hardware with solid-state detectors and optimized collimators. New protocols include very low-dose (1 mSv) stress-only, two-position imaging to mitigate attenuation artifacts, and simultaneous dual-isotope imaging. Attenuation correction can be performed by specialized low-dose systems or by previously obtained CT coronary calcium scans. Hybrid protocols using CT angiography have been proposed. Image quality improvements have been demonstrated by novel reconstructions and motion correction. Fast SPECT acquisition facilitates dynamic flow and early function measurements. Image processing algorithms have become automated with virtually unsupervised extraction of quantitative imaging variables. This automation facilitates integration with clinical variables derived by machine learning to predict patient outcome or diagnosis. In this review, we describe new imaging protocols made possible by the new hardware developments. We also discuss several novel software approaches for the quantification and interpretation of myocardial perfusion SPECT scans. PMID- 29034067 TI - Multiple- vs Non- or Single-Imputation based Fuzzy Clustering for Incomplete Longitudinal Behavioral Intervention Data. AB - Disentangling patients' behavioral variations is a critical step for better understanding an intervention's effects on individual outcomes. Missing data commonly exist in longitudinal behavioral intervention studies. Multiple imputation (MI) has been well studied for missing data analyses in the statistical field, however, has not yet been scrutinized for clustering or unsupervised learning, which are important techniques for explaining the heterogeneity of treatment effects. Built upon previous work on MI fuzzy clustering, this paper theoretically, empirically and numerically demonstrate how MI-based approach can reduce the uncertainty of clustering accuracy in comparison to non-and single-imputation based clustering approach. This paper advances our understanding of the utility and strength of multiple-imputation (MI) based fuzzy clustering approach to processing incomplete longitudinal behavioral intervention data. PMID- 29034069 TI - Scaffold hopping via ANCHOR.QUERY: beta-lactams as potent p53-MDM2 antagonists?. AB - Using the pharmacophore-based virtual screening platform ANCHOR.QUERY, we morphed our recently described Ugi-4CR scaffold towards a beta-lactam scaffold with potent p53-MDM2 antagonizing activities. 2D-HSQC and FP measurements confirm potent MDM2 binding. Molecular modeling studies are used to understand the observed SAR in the beta-lactam series. PMID- 29034064 TI - Personalized Therapy Against Preeclampsia by Replenishing Placental Protein 13 (PP13) Targeted to Patients With Impaired PP13 Molecule or Function. AB - Hypertensive disorders affect about one third of all people aged 20 and above, and are treated with anti-hypertensive drugs. Preeclampsia (PE) is one form of such disorders that only develops during pregnancy. It affects ten million pregnant women globally and additionally causes fetal loss and major newborn disabilities. The syndrome's origin is multifactorial, and anti-hypertensive drugs are ineffective in treating it. Biomarkers are helpful for predict its development. Generic drugs, such as low dose aspirin, were proven effective in preventing preterm PE. However, it does not cure the majority of cases and many studies are underway for fighting PE with extended use of additional generic drugs, or through new drug development programs. This review focuses on placental protein 13 (PP13). This protein is only expressed in the placenta. Impaired PP13 DNA structure and/or its reduced mRNA expression leads to lower blood PP13 level that predict a higher risk of developing PE. Two polymorphic PP13 variants have been identified: (1) The promoter PP13 variant with an "A/A" genotype in the -98 position (versus "A/C" or "C/C"). Having the "A/A" genotype is coupled to lower PP13 expression, mainly during placental syncytiotrophoblast differentiation and, if associated with obesity and history of previous preeclampsia, it accurately predicts higher risk for developing the disorder. (2) A thymidine deletion at position 221 causes a frame shift in the open reading frame, and the formation of an early stop codon resulting in the formation of DelT221, a truncated variant of PP13. In pregnant rodents, both short- and long- term replenishment of PP13 causes reversible hypotension and vasodilation of uterine vessels. Long-term exposure is also accompanied by the development of larger placentas and newborns. Also, only w/t PP13 is capable of inducing leukocyte apoptosis, providing maternal immune tolerance to pregnancy. Based on published data, we propose a targeted PP13 therapy to fight PE, and consider the design and conduct of animal studies to explore this hypothesis. Accordingly, a new targeted therapy can be implemented in humans combining prediction and prevention. PMID- 29034070 TI - Spontaneous resolution of symptomatic lumbar synovial cyst. AB - Lumbar synovial cyst arises from the facet joint and can lead to back pain, radiculopathy, neurogenic claudication or even cauda equina syndrome. Although most surgeons would consider surgery to be the treatment of choice, the natural history of the disease process remains unknown and uncertainty still exists regarding optimal management of this controversial entity. We illustrate a case of large L5/S1 synovial cyst for which surgery was initially planned. However, it resolved spontaneously without any treatment. We also provide a brief literature review regarding conservative, surgical and minimally invasive management of symptomatic lumbar synovial cyst with special reference to patient outcome. PMID- 29034068 TI - Clinical phenotype of ASD-associated DYRK1A haploinsufficiency. AB - BACKGROUND: DYRK1A is a gene recurrently disrupted in 0.1-0.5% of the ASD population. A growing number of case reports with DYRK1A haploinsufficiency exhibit common phenotypic features including microcephaly, intellectual disability, speech delay, and facial dysmorphisms. METHODS: Phenotypic information from previously published DYRK1A cases (n = 51) and participants in an ongoing study at the University of Washington (UW, n = 10) were compiled. Frequencies of recurrent phenotypic features in this population were compared to features observed in a large sample with idiopathic ASD from the Simons Simplex Collection (n = 1981). UW DYRK1A cases were further characterized quantitatively and compared to a randomly subsampled set of idiopathic ASD cases matched on age and gender (n = 10) and to cases with an ASD-associated disruptive mutation to CHD8 (n = 12). Contribution of familial genetic background to clinical heterogeneity was assessed by comparing head circumference, IQ, and ASD-related symptoms of UW DYRK1A cases to their unaffected parents. RESULTS: DYRK1A haploinsufficiency results in a common phenotypic profile including intellectual disability, speech and motor difficulties, microcephaly, feeding difficulties, and vision abnormalities. Eighty-nine percent of DYRK1A cases ascertained for ASD presented with a constellation of five or more of these symptoms. When compared quantitatively, DYRK1A cases presented with significantly lower IQ and adaptive functioning compared to idiopathic cases and significantly smaller head size compared to both idiopathic and CHD8 cases. Phenotypic variability in parental head circumference, IQ, and ASD-related symptoms corresponded to observed variability in affected child phenotype. CONCLUSIONS: Results confirm a core clinical phenotype for DYRK1A disruptions, with a combination of features that is distinct from idiopathic ASD. Cases with DYRK1A mutations are also distinguishable from disruptive mutations to CHD8 by head size. Measurable, quantitative characterization of DYRK1A haploinsufficiency illuminates clinical variability, which may be, in part, due to familial genetic background. PMID- 25210619 TI - Sub-strains of Drosophila Canton-S differ markedly in their locomotor behavior. AB - We collected five sub-strains of the standard laboratory wild-type Drosophilamelanogaster Canton Special (CS) and analyzed their walking behavior in Buridan's paradigm using the CeTrAn software. According to twelve different aspects of their behavior, the sub-strains fit into three groups. The group separation appeared not to be correlated with the origin of the stocks. We conclude that founder effects but not laboratory selection likely influenced the gene pool of the sub-strains. The flies' stripe fixation was the parameter that varied most. Our results suggest that differences in the genome of laboratory stocks can render comparisons between nominally identical wild-type stocks meaningless. A single source for control strains may settle this problem. PMID- 29034071 TI - Apigenin in cancer therapy: anti-cancer effects and mechanisms of action. AB - Apigenin is a common dietary flavonoid that is abundantly present in many fruits, vegetables and Chinese medicinal herbs and serves multiple physiological functions, such as strong anti-inflammatory, antioxidant, antibacterial and antiviral activities and blood pressure reduction. Therefore, apigenin has been used as a traditional medicine for centuries. Recently, apigenin has been widely investigated for its anti-cancer activities and low toxicity. Apigenin was reported to suppress various human cancers in vitro and in vivo by multiple biological effects, such as triggering cell apoptosis and autophagy, inducing cell cycle arrest, suppressing cell migration and invasion, and stimulating an immune response. In this review, we focus on the most recent advances in the anti cancer effects of apigenin and their underlying mechanisms, and we summarize the signaling pathways modulated by apigenin, including the PI3K/AKT, MAPK/ERK, JAK/STAT, NF-kappaB and Wnt/beta-catenin pathways. We also discuss combinatorial strategies to enhance the anti-cancer effect of apigenin on various cancers and its use as an adjuvant chemotherapeutic agent to overcome cancer drug resistance or to alleviate other adverse effects of chemotherapy. The functions of apigenin against cancer stem cells are also summarized and discussed. These data demonstrate that apigenin is a promising reagent for cancer therapy. Apigenin appears to have the potential to be developed either as a dietary supplement or as an adjuvant chemotherapeutic agent for cancer therapy. PMID- 29034075 TI - Structural brain abnormalities in 12 persons with aniridia. AB - Background: Aniridia is a disorder predominately caused by heterozygous loss-of function mutations of the PAX6 gene, which is a transcriptional regulator necessary for normal eye and brain development. The ocular abnormalities of aniridia have been well characterized, but mounting evidence has implicated brain related phenotypes as a prominent feature of this disorder as well. Investigations using neuroimaging in aniridia patients have shown reductions in discrete brain structures and changes in global grey and white matter. However, limited sample sizes and substantive heterogeneity of structural phenotypes in the brain remain a challenge. Methods: Here, we examined brain structure in a new population sample in an effort to add to the collective understanding of anatomical abnormalities in aniridia. The current study used 3T magnetic resonance imaging to acquire high-resolution structural data in 12 persons with aniridia and 12 healthy demographically matched comparison subjects. Results: We examined five major structures: the anterior commissure, the posterior commissure, the pineal gland, the corpus callosum, and the optic chiasm. The most consistent reductions were found in the anterior commissure and the pineal gland; however, abnormalities in all of other structures examined were present in at least one individual. Conclusions: Our results indicate that the anatomical abnormalities in aniridia are variable and largely individual-specific. These findings suggest that future studies investigate this heterogeneity further, and that normal population variation should be considered when evaluating structural abnormalities. PMID- 29034073 TI - Unmet goals in the treatment of Acute Myocardial Infarction: Review. AB - Reperfusion therapy decreases myocardium damage during an acute coronary event and consequently mortality. However, there are unmet needs in the treatment of acute myocardial infarction, consequently mortality and heart failure continue to occur in about 10% and 20% of cases, respectively. Different strategies could improve reperfusion. These strategies, like generation of warning sign recognition and being initially assisted and transferred by an emergency service, could reduce the time to reperfusion. If the first electrocardiogram is performed en route, it can be transmitted and interpreted in a timely manner by a specialist at the receiving center, bypassing community hospitals without percutaneous coronary intervention capabilities. To administer thrombolytic therapy during transport to the catheterization laboratory could reduce time to reperfusion in cases with expected prolonged transport time to a percutaneous coronary intervention center or to a center without primary percutaneous coronary intervention capabilities with additional expected delay, known as pharmaco invasive strategy. Myocardial reperfusion is known to produce damage and cell death, which defines the reperfusion injury. Lack of resolution of ST segment is used as a marker of reperfusion failure. In patients without ST segment resolution, mortality triples. It is important to note that, until recently, reperfusion injury and no-reflow were interpreted as a single entity and we should differentiate them as different entities; whereas no-reflow is the failure to obtain tissue flow, reperfusion injury is actually the damage produced by achieving flow. Therefore, treatment of no-reflow is obtained by tissue flow, whereas in reperfusion injury the treatment objective is protection of susceptible myocardium from reperfusion injury. Numerous trials for the treatment of reperfusion injury have been unsuccessful. Newer hypotheses such as " controlled reperfusion", in which the interventional cardiologist assumes not only the treatment of the culprit vessel but also the way to reperfuse the myocardium at risk, could reduce reperfusion injury. PMID- 29034074 TI - Recent advances in managing chronic prostatitis/chronic pelvic pain syndrome. AB - Chronic prostatitis/chronic pelvic pain syndrome is a common disorder seen in men under the age of 50 and has a considerable negative impact on quality of life; it is a complex and difficult condition to treat, owing to its wide symptomatology. In order to effectively treat this condition, the UPOINT system was developed: it allows clinical profiling of a patient's symptoms into six broad categories (urinary symptoms, psychological dysfunction, organ-specific symptoms, infectious causes, neurologic dysfunction, and tenderness of the pelvic floor muscles) to allow individualized and multimodal therapy. In this review, we present the most recent advancements in the treatment of chronic prostatitis/chronic pelvic pain syndrome from the past few years. PMID- 29034076 TI - Accessibility to health services among migrant workers in the Northeast of Thailand. AB - Background. There is an increasing trend of trans-border migration from neighboring countries to Thailand. According to human rights laws, everyone must have access to health services, even if they are from other nationalities. However, a small minority of health personnel in Thailand discriminate against immigrant workers, as they are from a lower financial bracket. Methods. This cross-sectional study aims to determine the prevalence of accessibility to health services and factors associated with access to health services among migrant workers who work along the Northeast border of Thailand. A total of 621 legal migrant workers were randomly selected to respond to a structured questionnaire about the satisfaction of health services, using the 5As of health services: availability; accessibility; accommodation; affordability; acceptability. Associations between independent variables and access to health services were analysed using multiple logistic regression analysis. Results. The results indicated that the majority of these registered migrant workers were female (63.9%) with an average age of 29+/- 8.61 years old, and were married (54.3%). Most of the workers worked at restaurants (80%), whereas only 20% were in agricultural sectors. Only 14% (95% CI: 11-17%) of migrant workers had access to health services. The factors that were significantly associated with accessibility to health service experienced ill health during the past one year (OR = 2.48; 95%CI; 1.54-3.97; p-value<0.001) ; have been married (OR = 2.32; 95% CI: 1.40 - 3.90; p-value <0.001). Conclusions. Most of the migrant workers could not access health services. The ones who did access health services were married or ill. PMID- 29034078 TI - Recent advances in cancer surgery in older patients. AB - Age is the most important risk factor for the occurrence of cancer, and a declining mortality from heart disease and other non-cancer causes leaves an older population that is at high risk of developing cancer. Choosing the optimal treatment for older cancer patients may be a challenge. Firstly, older age and associated factors such as comorbidities, functional limitations, and cognitive impairment are risk factors for adverse effects of cancer treatment. Secondly, older patients are often excluded from clinical trials, and current clinical guidelines rarely address how to manage cancer in patients who have comorbidities or functional limitations. The importance of incorporating frailty assessment into the preoperative evaluation of older surgical patients has received increasing attention over the last 10 years. Furthermore, studies that include endpoints such as functional status, cognitive status, and quality of life beyond the standard endpoints, i.e. postoperative morbidity and mortality, are starting to emerge. This review looks at recent evidence regarding geriatric assessment and frailty in older surgical cancer patients and provides a summary of newer studies in colorectal, liver, pancreatic, and gynecological cancer and renal and central nervous system tumors. PMID- 29034077 TI - Marine archaea and archaeal viruses under global change. AB - Global change is altering oceanic temperature, salinity, pH, and oxygen concentration, directly and indirectly influencing marine microbial food web structure and function. As microbes represent >90% of the ocean's biomass and are major drivers of biogeochemical cycles, understanding their responses to such changes is fundamental for predicting the consequences of global change on ecosystem functioning. Recent findings indicate that marine archaea and archaeal viruses are active and relevant components of marine microbial assemblages, far more abundant and diverse than was previously thought. Further research is urgently needed to better understand the impacts of global change on virus archaea dynamics and how archaea and their viruses can interactively influence the ocean's feedbacks on global change. PMID- 29034080 TI - Professional medical writing support and the reporting quality of randomized controlled trial abstracts among high-impact general medical journals. AB - Background: In articles reporting randomized controlled trials, professional medical writing support is associated with increased adherence to Consolidated Standards of Reporting Trials (CONSORT). We set out to determine whether professional medical writing support was also associated with improved adherence to CONSORT for Abstracts. Methods: Using data from a previously published cross sectional study of 463 articles reporting randomized controlled trials published between 2011 and 2014 in five top medical journals, we determined the association between professional medical writing support and CONSORT for Abstracts items using a Wilcoxon rank-sum test. Results: The mean proportion of adherence to CONSORT for Abstracts items reported was similar with and without professional medical writing support (64.3% vs 66.5%, respectively; p=0.30). Professional medical writing support was associated with lower adherence to reporting study setting (relative risk [RR]; 0.40; 95% confidence interval [CI], 0.23-0.70), and higher adherence to disclosing harms/side effects (RR 2.04; 95% CI, 1.37-3.03) and funding source (RR 1.75; 95% CI, 1.18-2.60). Conclusions: Although professional medical writing support was not associated with increased overall adherence to CONSORT for Abstracts, important aspects were improved with professional medical writing support, including reporting of adverse events and funding source. This study identifies areas to consider for improvement. PMID- 29034079 TI - Adaptation in the visual cortex: a case for probing neuronal populations with natural stimuli. AB - The perception of, and neural responses to, sensory stimuli in the present are influenced by what has been observed in the past-a phenomenon known as adaptation. We focus on adaptation in visual cortical neurons as a paradigmatic example. We review recent work that represents two shifts in the way we study adaptation, namely (i) going beyond single neurons to study adaptation in populations of neurons and (ii) going beyond simple stimuli to study adaptation to natural stimuli. We suggest that efforts in these two directions, through a closer integration of experimental and modeling approaches, will enable a more complete understanding of cortical processing in natural environments. PMID- 29034081 TI - Renal impairment in stroke patients: A comparison between the haemorrhagic and ischemic variants. AB - Background: Renal impairment is regularly seen in hospitalized stroke patients, affecting the outcome of patients, as well as causing difficulties in their management. A prospective cohort study was conducted to assess the trend of renal function in hospitalized ischemic and haemorrhagic stroke patients. The incidence of renal impairment in these subgroups, the contributing factors and the need for renal replacement in renal impaired patients was evaluated. Methods: Alternate day renal function testing was performed in hospitalized stroke patients. Estimated glomerular filtration rate (e-GFR) was calculated and the trend of renal function in the two stroke subgroups (haemorrhagic and ischemic) was assessed, with renal impairment defined as e-GFR < 60mL/ minute per 1.73m 2. Results: Among 52 patients, 25 had haemorrhagic stroke (mean age 59.81 +/- 14.67) and 27 had ischemic stroke (mean age 56.12 +/- 13.08). The mean e-GFR (mL/minute per 1.732m 2) at admission in the haemorrhagic stroke subgroup was 64.79 +/- 25.85 compared to 86.04 +/- 26.09 in the ischemic stroke subgroup (p=0.005). Sixteen out of 25 (64%) patients in the haemorrhagic stroke subgroup and 9 out of 27 (33.3%) patients in the ischemic subgroup developed renal impairment (p=0.27). The location of the bleed (p=0.8), volume of hematoma (p=0.966) and surgical intervention (p=0.4) did not predispose the patients to renal impairment. One out of 16 patients with haemorrhagic stroke (who eventually died), and 2 out of 9 patients with ischemic stroke required renal replacement. Conclusion: Renal impairment is commonly seen in stroke patients, more so in patients who suffered haemorrhagic strokes. The impairment, however, is transient and rarely requires renal replacement therapy. PMID- 29034082 TI - Functional characterizations of rare UBA1 variants in X-linked Spinal Muscular Atrophy. AB - Background: X-linked spinal muscular atrophy (XL-SMA) results from mutations in the Ubiquitin-Like Modifier Activating Enzyme 1 ( UBA1). Previously, four novel closely clustered mutations have been shown to cause this fatal infantile disorder affecting only males. These mutations, three missense and one synonymous, all lie within Exon15 of the UBA1 gene, which contains the active adenylation domain (AAD). Methods: In this study, our group characterized the three known missense variants in vitro. Using a novel Uba1 assay and other methods, we investigated Uba1 adenylation, thioester, and transthioesterification reactions in vitro to determine possible biochemical effects of the missense variants. Results: Our data revealed that only one of the three XL-SMA missense variants impairs the Ubiquitin-adenylating ability of Uba1. Additionally, these missense variants retained Ubiquitin thioester bond formation and transthioesterification rates equal to that found in the wild type. Conclusions: Our results demonstrate a surprising shift from the likelihood of these XL-SMA mutations playing a damaging role in Uba1's enzymatic activity with Ubiquitin, to other roles such as altering UBA1 mRNA splicing via the disruption of splicing factor binding sites, similar to a mechanism in traditional SMA, or disrupting binding to other important in vivo binding partners. These findings help to narrow the search for the areas of possible dysfunction in the Ubiquitin proteasome pathway that ultimately result in XL-SMA. Moreover, this investigation provides additional critical understanding of the mutations' biochemical mechanisms, vital for the development of future effective diagnostic assays and therapeutics. PMID- 29034083 TI - The effect of cognitive-behavioral counseling on anxiety in the mothers of infants in the NICU: A randomized controlled trial. AB - Background: Pressures and tensions in everyone's life can cause a wide range of mental disorders such as anxiety. One of these tensions is the birth of a baby who requires special care, which can cause personal and social problems for the mother if no appropriate measures are taken to help them. The present study was conducted to determine the effect of cognitive-behavioral counseling on anxiety in the mothers of infants in the Neonatal Intensive Care Unit. Methods: This randomized controlled trial recruited 90 women presenting to Kowsar Hospital in Qazvin in 2016. They were enrolled by convenience sampling and randomly assigned to control and intervention groups. Eight sessions were held for each group. Beck Anxiety Inventory was filled by mothers at the beginning of intervention, at the end of the eighth session and three weeks after the intervention. The data was analyzed by generalized estimating equations (GEE) method. Results: According to the results, maternal anxiety showed no significant differences between the two groups before intervention (p = 0.408 and p = 0.881). Based on GEE test, the mean score of anxiety was significantly different in the two groups (p = 0.026) immediately and three weeks after the intervention in that it was lower in the intervention group. Friedman test results also confirmed the reducing trend of mean score of anxiety in the three stages (p = 0.000). Conclusions: Counseling has a positive effect on reducing the anxiety of mothers of children with special needs, therefore it can be used to improve their condition. PMID- 29034084 TI - Protein unfolding mechanisms and their effects on folding experiments. AB - In this review, I discuss the various methods researchers use to unfold proteins in the lab in order to understand protein folding both in vitro and in vivo. The four main techniques, chemical-, heat-, pressure- and force-denaturation, produce distinctly different unfolded conformational ensembles. Recent measurements have revealed different folding kinetics from different unfolding mechanisms. Thus, comparing these distinct unfolded ensembles sheds light on the underlying free energy landscape of folding. PMID- 29034085 TI - AMP-activated protein kinase - not just an energy sensor. AB - Orthologues of AMP-activated protein kinase (AMPK) occur in essentially all eukaryotes as heterotrimeric complexes comprising catalytic alpha subunits and regulatory beta and gamma subunits. The canonical role of AMPK is as an energy sensor, monitoring levels of the nucleotides AMP, ADP, and ATP that bind competitively to the gamma subunit. Once activated, AMPK acts to restore energy homeostasis by switching on alternate ATP-generating catabolic pathways while switching off ATP-consuming anabolic pathways. However, its ancestral role in unicellular eukaryotes may have been in sensing of glucose rather than energy. In this article, we discuss a few interesting recent developments in the AMPK field. Firstly, we review recent findings on the canonical pathway by which AMPK is regulated by adenine nucleotides. Secondly, AMPK is now known to be activated in mammalian cells by glucose starvation by a mechanism that occurs in the absence of changes in adenine nucleotides, involving the formation of complexes with Axin and LKB1 on the surface of the lysosome. Thirdly, in addition to containing the nucleotide-binding sites on the gamma subunits, AMPK heterotrimers contain a site for binding of allosteric activators termed the allosteric drug and metabolite (ADaM) site. A large number of synthetic activators, some of which show promise as hypoglycaemic agents in pre-clinical studies, have now been shown to bind there. Fourthly, some kinase inhibitors paradoxically activate AMPK, including one (SU6656) that binds in the catalytic site. Finally, although downstream targets originally identified for AMPK were mainly concerned with metabolism, recently identified targets have roles in such diverse areas as mitochondrial fission, integrity of epithelial cell layers, and angiogenesis. PMID- 29034086 TI - How do you recognize and reconstitute a synaptic vesicle after fusion? AB - Synaptic vesicle recycling is essential for sustained and reliable neurotransmission. A key component of synaptic vesicle recycling is the synaptic vesicle biogenesis process that is observed in synapses and that maintains the molecular identity of synaptic vesicles. However, the mechanisms by which synaptic vesicles are retrieved and reconstituted after fusion remain unclear. The complex molecular composition of synaptic vesicles renders their rapid biogenesis a daunting task. Therefore, in this context, kiss-and-run type transient fusion of synaptic vesicles with the plasma membrane without loss of their membrane composition and molecular identity remains a viable hypothesis that can account for the fidelity of the synaptic vesicle cycle. In this article, we discuss the biological implications of this problem as well as its possible molecular solutions. PMID- 29034087 TI - Spironolactone in cardiovascular disease: an expanding universe? AB - Spironolactone has been marketed for over half a century as a 'potassium-sparing diuretic', used primarily in patients with ascites. With the realization that primary aldosteronism is the most common (5-13%) form of secondary hypertension, it has become widely used as a mineralocorticoid receptor antagonist. More recently, in the wake of the RALES trial, spironolactone in addition to standard therapy has been shown to be very beneficial in heart failure with a reduced ejection fraction. Despite the failure of the TOPCAT trial, spironolactone is being increasingly used in diastolic heart failure (i.e. with a preserved ejection fraction). The third currently accepted role for spironolactone is in hypertension resistant to three conventional antihypertensives including a diuretic, where it has been proven to be effective, in contra-distinction to renal artery denervation. Finally, brief consideration will be given to 'areas in waiting' - pulmonary hypertension/fibrosis, cancer - where spironolactone may play very useful roles. PMID- 29034088 TI - Emerging dilemmas in the diagnosis and management of gastroesophageal reflux disease. AB - Gastroesophageal reflux disease (GERD) is common, but less so than widely reported because of inconsistencies in definition. In clinical practice, the diagnosis is usually based on a symptom assessment without testing, and the extent of diagnostic testing pursued should be limited to that which guides management or which protects the patient from the risks of a potentially morbid treatment or an undetected early (or imminent) esophageal adenocarcinoma or which does both. When testing is pursued, upper gastrointestinal endoscopy is the most useful initial diagnostic test because it evaluates for the major potential morbidities (Barrett's, stricture, and cancer) associated with GERD and facilitates the identification of some alternative diagnostic possibilities such as eosinophilic esophagitis. However, endoscopy is insensitive for diagnosing GERD because most patients with GERD have non-erosive reflux disease, a persistent diagnostic dilemma. Although many studies have tried to objectify the diagnosis of GERD with improved technology, this is ultimately a pragmatic diagnosis based on response to proton pump inhibitor (PPI) therapy, and, in the end, response to PPI therapy becomes the major indication for continued PPI therapy. Conversely, in the absence of objective criteria for GERD and the absence of apparent clinical benefit, PPI therapy is not indicated and should be discontinued. PPIs are well tolerated and safe, but nothing is perfectly safe, and in the absence of measurable benefit, even a miniscule risk dominates the risk-benefit assessment. PMID- 29034089 TI - More than meets the IR: the expanding roles of variant Ionotropic Glutamate Receptors in sensing odor, taste, temperature and moisture. AB - The ionotropic receptors (IRs) are a branch of the ionotropic glutamate receptor family and serve as important mediators of sensory transduction in invertebrates. Recent work shows that, though initially studied as olfactory receptors, the IRs also mediate the detection of taste, temperature, and humidity. Here, we summarize recent insights into IR evolution and its potential ecological significance as well as recent advances in our understanding of how IRs contribute to diverse sensory modalities. PMID- 29034091 TI - Phenotypic and genotypic characterization of antibiotic resistance of methicillin resistant Staphylococcus aureus isolated from hospital food. AB - BACKGROUND: Pathogenic biotypes of the Methicillin-resistant Staphylococcus aureus (MRSA) strains are considered to be one of the major cause of food-borne diseases in hospitals. The present investigation was done to study the pattern of antibiotic resistance and prevalence of antibiotic resistance genes of different biotypes of the MRSA strains isolated from various types of hospital food samples. METHODS: Four-hundred and eighty-five raw and cooked hospital food samples were cultured and MRSA strains were identified using the oxacillin and cefoxitin disk diffusion tests and mecA-based PCR amplification. Isolated strains were subjected to biotyping and their antibiotic resistance patterns were analyzed using the disk diffusion and PCR methods. RESULTS: Prevalence of S. aureus and MRSA were 9.69 and 7.62%, respectively. Meat and chicken barbecues had the highest prevalence of MRSA. Prevalence of bovine, ovine, poultry and human based biotypes in the MRSA strains were 8.10, 8.10, 32.43 and 48.64%, respectively. All of the MRSA strains recovered from soup, salad and rice samples were related to human-based biotypes. MRSA strains harbored the highest prevalence of resistance against penicillin (100%), ceftaroline (100%), tetracycline (100%), erythromycin (89.18%) and trimethoprim-sulfamethoxazole (83.78%). TetK (72.97%), ermA (72.97%), msrA (64.86%) and aacA-D (62.16%) were the most commonly detected antibiotic resistance genes. CONCLUSIONS: Pattern of antibiotic resistance and also distribution of antibiotic resistance genes were related to the biotype of MRSA strains. Presence of multi-drug resistance and also simultaneous presence of several antibiotic resistance genes in some MRSA isolates showed an important public health issue Further researches are required to found additional epidemiological aspects of the MRSA strains in hospital food samples. PMID- 29034090 TI - Pre- to postoperative coagulation profile of 307 patients undergoing oesophageal resection with epidural blockade over a 10-year period in a single hospital: implications for the risk of spinal haematoma. AB - BACKGROUND: Epidural anaesthesia and analgesia are indicated for oesophageal surgery. A rare but serious complication is spinal haematoma, which can occur on insertion, manipulation or withdrawal of catheters. Evidence and guidelines are vague regarding which tests are appropriate and how to interpret their results. We aimed to describe how routine coagulation test results change during oesophagectomy's perioperative course. METHODS: Following ethical approval, we retrospectively identified patients who had undergone oesophagectomy between 2002 and 2012. Blood test results and details of operations, haemorrhage and complications were recorded and analysed with Excel and R. A literature search was conducted using the PubMed terms 'epidural' AND 'coagulation' AND English language. Relevant articles published in 2000 and after were included. RESULTS: Three hundred and seven patients received a thoracic epidural infusion with bupivacaine and morphine while 51 received an intravenous morphine infusion. Tests taken preoperatively and before the planned withdrawal of the epidural catheter demonstrated increases in all three measures: aPTT (activated partial thromboplastin time), PT-INR (prothrombin international normalised ratio) and platelet count (Plc). Postoperative thrombocytopenia was almost non-existent while aPTT or PT-INR was elevated above the reference range in 129/307 patients: aPTT was elevated in 116/307 while PT-INR was elevated in 32/307. This is too small a sample to allow meaningful estimation of risk of spinal haematoma: it may be as high as 2.3%. The literature search returned 275 articles, of which 57 were relevant. Twenty-one concerned the natural history of postoperative coagulation; 16, the incidence of and risk factors for spinal haematoma; and 5, evaluation of specific blood tests. Postoperative coagulation is characterised by thrombocytosis and transient moderately abnormal routine coagulation test results. Viscoelastic tests are not validated in the stable postoperative setting. CONCLUSIONS: Screening for coagulopathy before removal of epidural catheters is of unclear benefit since elevated aPTT and PT-INR are usual and may not indicate hypocoagulation. A thorough clinical assessment is important. We nevertheless recommend caution when being presented with elevated routine tests of coagulation before withdrawing an epidural catheter: viscoelastic haemostatic tests may have a role in testing before withdrawal of epidural catheters but they are so far not validated. Future research should include advanced coagulation analysis as soon as a patient is unfortunate enough to have a spinal haematoma. PMID- 29034092 TI - Choosing the uterine preservation surgery for placental polyp determined by blood flow evaluation: A retrospective cohort study. AB - BACKGROUND: A placental polyp is an intrauterine polypoid mass or pedunculated mass occurring from residual trophoblastic tissue following abortion, cesarean section or vaginal delivery. Recently uterine preservation surgery represented by transcervical resection (TCR) has been performed for placental polyps. However TCR without intravascular intervention, including uterine artery embolization (UAE) may cause profound bleeding which necessitate emergency laparotomy. METHODS: Seventeen cases of placental polyp were retrospectively examined. We divided cases into two groups: strong vascularity group (n = 13) and weak vascularity group (n = 4). Mass extraction of polyp by TCR was conducted in 16 cases, 6 case without UAE and 10 cases with UAE. RESULTS: As for the weak vascularity group, one case was naturally resolved while planning surgery and 3 cases were treated with TCR without UAE without major intra- and/or postoperative bleeding. On the other hand in the strong vascularity group, 2 out of 3 cases of TCR without UAE resulted in major bleeding during and after the surgery, both needed transfusion and one needing postoperative UAE. Ten cases of strong vascularity group, TCR with UAE were performed and all of them were accomplished without major bleeding. TCR without UAE was safely performed in cases where there was absent or mild to moderate blood flow. CONCLUSIONS: Our report suggests that adding UAE might be safer to treat placental polyps that have strong vascularity. PMID- 29034093 TI - Sentinel surveillance of influenza-like illness in the Central African Republic, 2010-2015. AB - BACKGROUND: Influenza-like illness (ILI) is an important public health problem worldwide. In the Central African Republic, acute infectious diseases are the commonest reason for consultation. The Institut Pasteur of Bangui set up a surveillance network in 2008 to monitor the circulation of influenza viruses. We report the results of use of this surveillance system during the period 2010 2015. METHODS: The first surveillance centre covered Bangui, the capital of the country, and neighbouring areas and epidemiological data on syndromes similar to ILI. Throat and nasopharyngeal swab samples are transmitted weekly to the Institut Pasteur of Bangui, where real-time and multiplex reverse transcription polymerase chain reaction are used to detect and subtype influenza A (H1N1 and H3N2) and B viruses. The demographic characteristics of all patients and of positive cases according to age and the seasonal patterns of influenza virus circulation were analysed. RESULTS: Between January 2010 and December 2015, 5385 throat swabs were collected; 454 (8.4%) of the samples were positive. Of these, 450 yielded at least one influenza virus and four showed co-infections. Children under the age of 5 years were the most frequently infected (257/450, 57.1%), with irregular peaks of ILI. Influenza B predominated (56.2%; n = 201), with 39.0% H3N2 and 16.7%H1N1pdm09. Influenza viruses were detected mainly in the rainy season (July-December). CONCLUSION: The sentinel surveillance site is yielding important information about the seasonality and age pattern of circulating influenza virus. Nationwide distribution of sentinel sites is warranted. PMID- 29034094 TI - Antibiotic therapy, supportive treatment and management of immunomodulation inflammation response in community acquired pneumonia: review of recommendations. AB - Community-acquired pneumonia is a common and serious disease, with high rates of morbidity and mortality. Management and treatment of community-acquired pneumonia are described in three main documents: the 2007 American Thoracic Society guidelines, the 2011 European Respiratory Society guidelines, and the 2009 British Thoracic Society guidelines, updated by the NICE in 2015. Despite the validity of current guidelines in improving prognosis and management of patients with community-acquired pneumonia, not all recommendations have high levels of evidence and there are still some controversial issues. In particular, there are some areas of low evidence such as the efficacy of an antibiotic molecule or scheme in patients with same risk factors; duration of antibiotic treatment, supportive therapy for acute respiratory failure and immunomodulation molecules. This review will summarize the main recommendations with high level of evidence and discuss the recommendations with lower evidence, analyzing the studies published after the guidelines' release. PMID- 29034095 TI - Current and emerging brain applications of MR-guided focused ultrasound. AB - MRI guided focused ultrasound is an emerging technique that uses acoustic energy to noninvasively treat intracranial disorders. At high frequencies, it can be used to raise tissue temperatures and ablate discrete brain targets with sub millimeter accuracy. This application is currently under investigation for a broad range of clinical applications, including brain tumors, movement disorders, and psychiatric conditions. At low frequencies MRI guided focused ultrasound can be used to modulate neuronal activity and in conjunction with injected microbubbles, can open the blood-brain barrier to enhance the delivery of therapeutic compounds. The last decade has seen dramatic advances in the science of MRI guided focused ultrasound, helping elucidate both its mechanisms and potential in pre-clinical models, and its translational promise across myriad clinical applications. This review provides an update of current and emerging MRI guided focused ultrasound applications for intracranial disorders and describes future directions and challenges for the field. PMID- 29034096 TI - Evaluating the impact of Brexit on the pharmaceutical industry. AB - INTRODUCTION: The UK Pharmaceutical Industry is arguably one of the most important industries to consider in the negotiations following the Brexit vote. Providing tens of thousands of jobs and billions in tax revenue and research investment, the importance of this industry cannot be understated. At stake is the global leadership in the sector, which produces some of the field's most influential basic science and translation work. However, interruptions and losses may occur at multiple levels, affecting patients, researchers, universities, companies and government. GOALS: By understanding the current state of pharmaceutical sector, the potential effect of leaving the European Union (EU) on this successful industry can be better understood. This paper aims to address the priorities for negotiations by collating the analyses of professionals in the field, leading companies and non-EU member states. RESEARCH METHODS: A government healthcare policy advisor and Chief Science Officer (CSO) for a major pharmaceutical firm were consulted to scope the paper. In these discussions, five key areas were identified: contribution, legislative processes, regulatory processes, research and outcomes, commercial risk. Multiple search engines were utilised for selecting relevant material, predominantly PubMed and Google Scholar. To supplement this information, Government documents were located using the "GOV.UK" publications tool, and interviews and commentaries were found through the Google News search function. CONCLUSION: With thorough investigation of the literature, we propose four foundations in the advancement of negotiations. These prioritise: negotiation of 'associated country' status, bilaterally favourable trade agreements, minimal interruption to regulatory bodies and special protection for the movement of workforce in the life sciences industry. PMID- 29034097 TI - The association between cadmium and lead exposure and blood pressure among workers of a smelting industry: a cross-sectional study. AB - BACKGROUND: Lead and cadmium are harmful heavy metals that are used for a variety of occupational purposes. Considering their potentially hazardous effects on health, studies on the association between exposure to these two heavy metals and health disorders have been actively conducted. This study aimed to determine the association between blood lead and cadmium levels and blood pressure in workers exposed to lead and cadmium in a smelter. METHODS: Nine hundred and sixty-three male workers who worked in a smelter, and underwent medical examinations at the Ulsan University Hospital between January 1 and December 31, 2014, were selected as participants. Among them, 310 subjects whose data on height, weight, blood pressure, fasting blood glucose, lipid profile, and blood lead and cadmium levels were available and who answered the questionnaire were selected as the final participants. We investigated the drinking habit, smoking status, exercise adequacy, and family history of hypertension of these workers using formal questionnaires. A statistical analysis was conducted using Student's t-test, analysis of variance, and linear or logistic regression. RESULTS: The association between blood lead and cadmium levels and blood pressure was analyzed through statistical adjustment of the risk factors of hypertension. Results showed an association between blood cadmium level and blood pressure elevation. However, blood lead level was found to be not correlated with blood pressure elevation. CONCLUSIONS: This study shows the association between blood cadmium level and systolic blood pressure (SBP) and diastolic blood pressure (DBP) elevation. TRIAL REGISTRATION: IRB No. 2017-03-037. Retrospectively Registered 30 March 2017. PMID- 29034098 TI - Relative deprivation and individual well-being: Low status and a feeling of relative deprivation are detrimental to health and happiness. AB - People who are unable to maintain the same standard of living as others around them experience a sense of relative deprivation that has been shown to reduce feelings of well-being. Relative deprivation reflects conditions of worsening relative poverty despite striking reductions in absolute poverty. The effects of relative deprivation explain why average happiness has been stagnant over time despite sharp rises in income. Consumption taxes on status-seeking spending, along with official and traditional sanctions on excess consumption and redistributive policies may lessen the negative impact of relative deprivation on well-being. PMID- 29034099 TI - Lumbopelvic rhythm during trunk motion in the sagittal plane: A review of the kinematic measurement methods and characterization approaches. AB - Lumbopelvic rhythm during trunk forward bending and backward return has been widely investigated to have a better understanding of the pattern of trunk motion, as used in research on low back disorders. Considerable differences in the methods used to measure, and approaches used to characterize the lumbopelvic rhythm hinder the integration of findings of those studies for further research in the future. Thus, the purpose of this review was to summarize the methods for kinematic measurement as well as their characterization approaches for the lumbopelvic rhythm. PUBMED and CINAHL databases were searched for relevant studies. Several types of instruments were found to be used in the reviewed studies, mostly using markers or sensors, which were placed on different parts of spine, with different definitions to measure the lumbar and pelvic motion. Also, various characterization approaches were found to be used, of which some related to the magnitude, while the others to the timing aspects of lumbopelvic rhythm. Such a characterization was either qualitative or quantitative. In addition, the specified characterization approaches were applied on a sample of trunk kinematics data from our lab to demonstrate differences in the outcomes of these approaches. PMID- 29034100 TI - Prevalence of mental health conditions and relationship with general health in a whole-country population of people with intellectual disabilities compared with the general population. AB - BACKGROUND: There are no previous whole-country studies on mental health and relationships with general health in intellectual disability populations; study results vary. AIMS: To determine the prevalence of mental health conditions and relationships with general health in a total population with and without intellectual disabilities. METHOD: Ninety-four per cent completed Scotland's Census 2011. Data on intellectual disabilities, mental health and general health were extracted, and the association between them was investigated. RESULTS: A total of 26 349/5 295 403 (0.5%) had intellectual disabilities. In total, 12.8% children, 23.4% adults and 27.2% older adults had mental health conditions compared with 0.3, 5.3 and 4.5% of the general population. Intellectual disabilities predicted mental health conditions; odds ratio (OR)=7.1 (95% CI 6.8 7.3). General health was substantially poorer and associated with mental health conditions; fair health OR=1.8 (95% CI 1.7-1.9), bad/very bad health OR=4.2 (95% CI 3.9-4.6). CONCLUSIONS: These large-scale, whole-country study findings are important, given the previously stated lack of confidence in comparative prevalence results, and the need to plan services accordingly. DECLARATION OF INTEREST: None. COPYRIGHT AND USAGE: (c) The Royal College of Psychiatrists 2017. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) license. PMID- 29034101 TI - Lamotrigine-induced sexual dysfunction and non-adherence: case analysis with literature review. AB - BACKGROUND: Optimal anti-epileptic drug (AED) treatment maximises therapeutic response and minimises adverse effects (AEs). Key to therapeutic AED treatment is adherence. Non-adherence is often related to severity of AEs. Frequently, patients do not spontaneously report, and clinicians do not specifically query, critical AEs that lead to non-adherence, including sexual dysfunction. Sexual dysfunction prevalence in patients with epilepsy ranges from 40 to 70%, often related to AEDs, epilepsy or mood states. This case reports lamotrigine-induced sexual dysfunction leading to periodic non-adherence. AIMS: To report lamotrigine induced sexual dysfunction leading to periodic lamotrigine non-adherence in the context of multiple comorbidities and concurrent antidepressant and antihypertensive pharmacotherapy. METHOD: Case analysis with PubMed literature review. RESULTS: A 56-year-old male patient with major depression, panic disorder without agoraphobia and post-traumatic stress disorder was well-controlled with escitalopram 20 mg bid, mirtazapine 22.5 mg qhs and alprazolam 1 mg tid prn. Comorbid conditions included complex partial seizures, psychogenic non-epileptic seizures (PNES), hypertension, gastroesophageal reflux disease and hydrocephalus with patent ventriculoperitoneal shunt that were effectively treated with lamotrigine 100 mg tid, enalapril 20 mg qam and lansoprazole 30 mg qam. He acknowledged non-adherence with lamotrigine secondary to sexual dysfunction. With lamotrigine 300 mg total daily dose, he described no libido with impotence/anejaculation/anorgasmia. When off lamotrigine for 48 h, he described becoming libidinous with decreased erectile dysfunction but persistent anejaculation/anorgasmia. When off lamotrigine for 72 h to maximise sexual functioning, he developed auras. Family confirmed patient's consistent monthly non-adherence for 2-3 days during the past year. CONCLUSIONS: Sexual dysfunction is a key AE leading to AED non-adherence. This case describes dose-dependent lamotrigine-induced sexual dysfunction with episodic non-adherence for 12 months. Patient/clinician education regarding AED-induced sexual dysfunction is warranted as are routine sexual histories to ensure adherence. DECLARATION OF INTEREST: No financial interests. K.R.K. is Editor of BJPsych Open; he took no part in the peer-review of this work. COPYRIGHT AND USAGE: (c) The Royal College of Psychiatrists 2017. This is an open access article distributed under the terms of the Creative Commons Non-Commercial, No Derivatives (CC BY-NC-ND) license. PMID- 29034104 TI - Fibroblasts: The Unknown Sentinels Eliciting Immune Responses Against Microorganisms. AB - Fibroblasts are present in all tissues but predominantly in connective tissues. Some of their functions include contractility, locomotion, collagen and elastin fiber production, and the regulation and degradation of the extracellular matrix. Also, fibroblasts act as sentinels to produce inflammatory mediators in response to several microorganisms. There is evidence that fibroblasts can synthesize toll like receptors (TLRs), antimicrobial peptides, proinflammatory cytokines, chemokines, and growth factors, which are important molecules involved in innate immune response against microorganisms. Fibroblasts can express TLRs (TLR-1 to TLR-10) to sense microbial components or microorganisms. They can synthesize antimicrobial peptides, such as LL-37, defensins hBD-1, and hBD-2, molecules that perform antimicrobial activity. Also, they can produce proinflammatory cytokines, such as TNFalpha, INFgamma, IL-6, IL-12p70, and IL-10; other chemokines, such as CCL1, CCL2, CCL5, CXCL1, CXCL8, CXCL10, and CX3CL1; and the growth factors granulocyte/macrophage colony-stimulating factor (GM-CSF) and granulocyte colony stimulating factor (G-CSF) to induce and recruit inflammatory cells. According to their immunological attributes, we can conclude that fibroblasts are sentinel cells that recognize pathogens, induce the recruitment of inflammatory cells via cytokines and growth factors, and release antimicrobial peptides, complying with the characteristics of real sentinels. PMID- 29034102 TI - New directions in hypnosis research: strategies for advancing the cognitive and clinical neuroscience of hypnosis. AB - This article summarizes key advances in hypnosis research during the past two decades, including (i) clinical research supporting the efficacy of hypnosis for managing a number of clinical symptoms and conditions, (ii) research supporting the role of various divisions in the anterior cingulate and prefrontal cortices in hypnotic responding, and (iii) an emerging finding that high hypnotic suggestibility is associated with atypical brain connectivity profiles. Key recommendations for a research agenda for the next decade include the recommendations that (i) laboratory hypnosis researchers should strongly consider how they assess hypnotic suggestibility in their studies, (ii) inclusion of study participants who score in the middle range of hypnotic suggestibility, and (iii) use of expanding research designs that more clearly delineate the roles of inductions and specific suggestions. Finally, we make two specific suggestions for helping to move the field forward including (i) the use of data sharing and (ii) redirecting resources away from contrasting state and nonstate positions toward studying (a) the efficacy of hypnotic treatments for clinical conditions influenced by central nervous system processes and (b) the neurophysiological underpinnings of hypnotic phenomena. As we learn more about the neurophysiological mechanisms underlying hypnosis and suggestion, we will strengthen our knowledge of both basic brain functions and a host of different psychological functions. PMID- 29034105 TI - Changes of the Intestinal Microbiome-Host Homeostasis in HIV-Infected Individuals - A Focus on the Bacterial Gut Microbiome. AB - Human immunodeficiency virus (HIV) infections cause severe CD4+ T cell depletion leading to chronic inflammation and immune activation, impaired barrier function, and microbial translocation. Even under effective antiretroviral therapy, these processes persist, leading to gut microbiome dysbiosis and disturbance of microbiome-host homeostasis. This systematic review aims at analyzing how gut microbiome and host immune system influence each other during HIV pathogenesis. An online search applying the PubMed database was conducted. The number of total results (n = 35) was narrowed down to 5 relevant studies focusing on the interaction between the host and gut microbiome, whereas strict exclusion criteria were applied, thereby assuring that no other comorbidities impacted study results. Our analyses revealed that gut microbiome diversity correlated positively with CD4+ T cell counts and negatively with microbial translocation markers. However, quantitative changes in bacterial richness did not consistently correlate with the numbers of metabolically active bacterial populations. Despite the reported increase in potentially pathogenic bacteria and, conversely, decrease in protective populations, the gut microbiota exhibited immune modulating qualities given that mucosal inflammatory sequelae were dampened by decreasing pro-inflammatory and accelerating anti-inflammatory cytokine responses. Future research is needed to further elucidate these findings, to gain a deeper insight into host-microbiota interactions and to develop novel therapeutic strategies. PMID- 29034106 TI - Epidemiology and Antibiotic Resistance Phenotypes of Diarrheagenic Escherichia Coli Responsible for Infantile Gastroenteritis in Ouagadougou, Burkina Faso. AB - The emergence and persistence of multidrug-resistant (MDR) diarrheagenic Escherichia coli (DEC) causing acute diarrhea is a major public health challenge in developing countries. The aim of this study was to evaluate the resistance phenotypes of DEC isolated from stool samples collected from children less than 5 years of age with acute diarrhea living in Ouagadougou/Burkina Faso. From August 2013 to October 2015, this study was carried out on 31 DEC strains of our study conducted in "Centre Medical avec Antenne Chirurgicale (CMA)" Paul VI and CMA of Schiphra. DEC were isolated and identified by standard microbiological methods and polymerase chain reaction (PCR) method was used to further characterize them. Antimicrobial susceptibility testing was done based on the disk diffusion method. DEC isolates were high resistant to tetracycline (83.9%), amoxicillin (77.4%), amoxicillin clavulanic acid (77.4%), piperacillin (64.5%), and colistin sulfate (61.3%). The most resistant phenotype represented was the extended spectrum beta lactamase (ESBL) phenotype (67.7%). Aminoglycosides were 100% active on enteroinvasive E. coli (EIEC) and enterohemorrhagic E. coli (EHEC). All the DEC isolates exhibited absolute (100%) sensitivity to ciprofloxacin. Monitoring and studying the resistance profile of DEC to antibiotics are necessary to guide probabilistic antibiotic therapy, especially in pediatric patients. PMID- 29034103 TI - Genomic insights into head and neck cancer. AB - Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer worldwide and is frequently impervious to curative treatment efforts. Similar to other cancers associated with prolonged exposure to carcinogens, HNSCCs often have a high burden of mutations, contributing to substantial inter- and intra tumor heterogeneity. The heterogeneity of this malignancy is further increased by the rising rate of human papillomavirus (HPV)-associated (HPV+) HNSCC, which defines an etiological subtype significantly different from the more common tobacco and alcohol associated HPV-negative (HPV-) HNSCC. Since 2011, application of large scale genome sequencing projects by The Cancer Genome Atlas (TCGA) network and other groups have established extensive datasets to characterize HPV- and HPV+ HNSCC, providing a foundation for advanced molecular diagnoses, identification of potential biomarkers, and therapeutic insights. Some genomic lesions are now appreciated as widely dispersed. For example, HPV- HNSCC characteristically inactivates the cell cycle suppressors TP53 (p53) and CDKN2A (p16), and often amplifies CCND1 (cyclin D), which phosphorylates RB1 to promote cell cycle progression from G1 to S. By contrast, HPV+ HNSCC expresses viral oncogenes E6 and E7, which inhibit TP53 and RB1, and activates the cell cycle regulator E2F1. Frequent activating mutations in PIK3CA and inactivating mutations in NOTCH1 are seen in both subtypes of HNSCC, emphasizing the importance of these pathways. Studies of large patient cohorts have also begun to identify less common genetic alterations, predominantly found in HPV- tumors, which suggest new mechanisms relevant to disease pathogenesis. Targets of these alterations including AJUBA and FAT1, both involved in the regulation of NOTCH/CTNNB1 signaling. Genes involved in oxidative stress, particularly CUL3, KEAP1 and NFE2L2, strongly associated with smoking, have also been identified, and are less well understood mechanistically. Application of sophisticated data mining approaches, integrating genomic information with profiles of tumor methylation and gene expression, have helped to further yield insights, and in some cases suggest additional approaches to stratify patients for clinical treatment. We here discuss some recent insights built on TCGA and other genomic foundations. PMID- 29034107 TI - High-Throughput Testing of Urogenital and Extragenital Specimens for Detection of Chlamydia Trachomatis and Neisseria Gonorrhoeae with Cobas(r) CT/NG. AB - We compared the analytical and clinical performance of cobas(r) CT/NG for use on the Cobas(r) 6800/8800 Systems with the Cobas(r) 4800 CT/NG Test from urogenital and extragenital specimens in over 12,000 specimens from both male and female subjects in Germany and the United States. The analytical sensitivity was <=40 EB/ml for Chlamydia trachomatis (CT) and <=1 CFU/ml for Neisseria gonorrhoeae (NG). Using clinical specimens, the overall percent agreement with the Cobas(r) 4800 CT/NG Test was >98.5%. Across urogenital specimens, there were 93 discrepant specimens; 76 (93.8%) of 81 CT discrepant specimens were 6800+/4800- and 10 (83.3%) of 12 NG discrepant specimens were 6800+/4800-. Sequencing verified CT results for 45 (61.6%) of 73 samples positive by 6800 and 1 (20%) of 5 positive by 4800. Similarly, 7 (70.0%) of 10 NG samples positive by 6800 and 1 of 2 positive by 4800 were confirmed by sequencing. Among discrepant extragenital specimens (all 6800+/4800-), 7 (50%) of 14 oropharyngeal and 23 (76.7%) of 30 anorectal CT discordant samples were confirmed as CT positive by sequencing; all 8 anorectal and 20 (90.9%) of 22 oropharyngeal NG discordant results were also confirmed as NG positive. In conclusion, Cobas(r) CT/NG for use on the Cobas(r) 6800/8800 Systems provides high-throughput automated solutions for sexually transmitted infection (STI) screening programs. PMID- 29034108 TI - Intestinal Microbiota Changes in Mice Lacking Pituitary Adenylate Cyclase Activating Polypeptide (PACAP) - Bifidobacteria Make the Difference. AB - Pituitary adenylate cyclase activating polypetide (PACAP) constitutes a neuropeptide that is widely distributed in the host exerting essential cytoprotective properties, whereas PACAP-/- mice display increased susceptibility to distinct immunopathological conditions. The orchestrated interplay between the gut microbiota and the host is pivotal in immune homeostasis and resistance to disease. Potential pertubations of the intestinal microbiota in PACAP-/- mice, however, have not been addressed so far. For the first time, we performed a comprehensive survey of the intestinal microbiota composition in PACAP-/- and wildtype (WT) mice starting 2 weeks postpartum until 18 months of age applying quantitative culture-independent techniques. Fecal enterobacteria and enterococci were lower in PACAP-/- than WT mice aged 1 month and >=6 months, respectively. Whereas Mouse Intestinal Bacteroides were slightly higher in PACAP-/- versus WT mice aged 1 and 6 months, this later in life held true for Bacteroides/Prevotella spp. (>=12 months) and lactobacilli (>15 months of age). Strikingly, health beneficial bifidobacteria were virtually absent in the intestines of PACAP-/- mice, even when still breastfed. In conclusion, PACAP deficiency is accompanied by distinct changes in fecal microbiota composition with virtually absent bifidobacteria as a major hallmark that might be linked to increased susceptibility to disease. PMID- 29034109 TI - Multidrug-Resistant Pseudomonas Aeruginosa Induce Systemic Pro-Inflammatory Immune Responses in Colonized Mice. AB - The World Health Organization has rated multidrug-resistant (MDR) Pseudomonas aeruginosa as a critical threat to human health. In the present study, we performed a survey of intestinal colonization, and local and systemic immune responses following peroral association of secondary abiotic mice with either a clinical MDR P. aeruginosa or a commensal murine Escherichia coli isolate. Depletion of the intestinal microbiota following antibiotic treatment facilitated stable intestinal colonization of both P. aeruginosa and E. coli that were neither associated with relevant clinical nor histopathological sequelae. Either stable bacterial colonization, however, resulted in distinct innate and adaptive immune cell responses in the intestines, whereas a pronounced increase in macrophages and monocytes could be observed in the small as well as large intestines upon P. aeruginosa challenge only, which also applied to colonic T lymphocytes. In addition, TNF secretion was exclusively elevated in large intestines of P. aeruginosa-colonized mice. Strikingly, association of secondary abiotic mice with MDR P. aeruginosa, but not commensal E. coli, resulted in pronounced systemic pro-inflammatory responses, whereas anti-inflammatory responses were dampened. Hence, intestinal carriage of MDR P. aeruginosa as compared to a mere commensal Gram-negative strain in otherwise healthy individuals results in distinct local and systemic pro-inflammatory sequelae. PMID- 29034110 TI - Toll-Like Receptor-4 Dependent Inflammatory Responses Following Intestinal Colonization of Secondary Abiotic IL10-Deficient Mice with Multidrug-Resistant Pseudomonas Aeruginosa. AB - The rising incidences of infections with multidrug-resistant (MDR) Gram-negative bacteria including Pseudomonas aeruginosa (PA) have gained increasing attention in medicine, but also in the general public and global health politics. The mechanisms underlying opportunistic pathogen-host interactions are unclear, however. To address this, we challenged secondary abiotic IL10-/- mice deficient for Toll-like receptor-4 (TLR4-/- * IL10-/-), the main receptor of the Gram negative cell wall constituent lipopolysaccharide, with a clinical MDR PA isolate. Despite higher intestinal colonization densities, apoptotic colonic epithelial cell numbers were lower in TLR4-/- * IL10-/- mice as compared to IL10 /- controls at day 14 postinfection (p.i.), whereas proliferating/regenerating cells had increased in the latter only. Furthermore, PA-colonized TLR4-/- * IL10 /- mice displayed less distinct innate and adaptive immune cell responses in the colon as compared to IL10-/- counterparts that were accompanied by lower nitric oxide concentrations in mesenteric lymph nodes in the former at day 14 p.i. Conversely, splenic NO levels were higher in both naive and PA-colonized TLR4 deficient IL10-/- mice versus IL10-/- controls. Remarkably, intestinal MDR PA was able to translocate to extra-intestinal including systemic compartments of TLR4-/ * IL10-/- mice only. Hence, MDR PA-induced intestinal and systemic immune responses observed in secondary abiotic IL10-/- mice are TLR4-dependent. PMID- 29034111 TI - Molecular Characterization of Diarrheagenic Escherichia Coli in Children Less Than 5 Years of Age with Diarrhea in Ouagadougou, Burkina Faso. AB - Diarrheagenic Escherichia coli (DEC) is important bacteria of children's endemic and epidemic diarrhea worldwide. The aim of this study was to determine the prevalence of DEC isolated from stool samples collected from children with acute diarrhea living in Ouagadougou, Burkina Faso. From August 2013 to October 2015, stool samples were collected from 315 children under 5 years of age suffering from diarrhea in the "Centre Medical avec Antenne Chirurgicale (CMA)" Paul VI and the CMA of Schiphra. E. coli were isolated and identified by standard microbiological methods, and the 16-plex PCR method was used to further characterize them. Four hundred and nineteen (419) E. coli strains were characterized, of which 31 (7.4%) DEC pathotypes were identified and classified in five E. coli pathotypes: 15 enteroaggregative E. coli (EAEC) (48.4%), 8 enteropathogenic E. coli (EPEC) (25.8%) with 4 typical EPEC and 4 atypical EPEC, 4 enteroinvasive E. coli (EIEC) (12.9%), 3 enterohemorrhagic E. coli (EHEC) 9.67%, and 1 enterotoxigenic E. coli (ETEC) 3.2%. The use of multiplex PCR as a routine in clinical laboratory for the detection of DEC would be a useful mean for a rapid management of an acute diarrhea in children. PMID- 29034112 TI - Lack of Association Between Cytomegalovirus Infection and Hypertensive Disorders in Pregnancy: A Case-Control Study in Durango, Mexico. AB - It is not clear whether infection with cytomegalovirus (CMV) is associated with hypertensive disorders in pregnant women. Through a case-control study design, 146 women suffering from hypertensive disorders in pregnancy (cases) and 146 age matched normotensive pregnant women (controls) were examined for the presence of anti-CMV IgG and IgM antibodies with enzyme-linked immunoassays. IgM seropositive samples were further assayed by enzyme-linked fluorescent assay (ELFA). Anti-CMV IgG antibodies were found in 138 (94.5%) controls and in 136 (93.2%) cases (odds ratio [OR] = 0.78; 95% confidence interval [CI]: 0.30-2.05; P = 0.62). High (>18 IU/ml) levels of anti-CMV IgG antibodies were found in 37.7% of the 138 seropositive controls and in 34.6% of the 136 seropositive cases (OR = 0.87; 95% CI: 0.53-1.43; P = 0.59). Anti-CMV IgM antibodies were found in 1 (0.7%) of the controls but in none of the cases using ELFA (P = 1.0). Seropositivity to CMV was not associated with a previous preeclampsia and was similar among cases regardless their mean systolic and diastolic blood pressures, and mean arterial blood pressure. No serological evidence of an association between CMV infection and hypertensive disorders of pregnancy was found. Further research to elucidate the role of CMV in hypertensive disorders in pregnancy should be conducted. PMID- 29034113 TI - Low Neurotoxicity of ONX-0914 Supports the Idea of Specific Immunoproteasome Inhibition as a Side-Effect-Limiting, Therapeutic Strategy. AB - Application of the proteasome inhibitor Bortezomib for the treatment of haematopoietic malignancies such as multiple myeloma significantly improves the average overall survival of patients. However, one of the most severe side effects is the development of peripheral neuropathies caused by neurotoxic effects of Bortezomib limiting its therapeutic efficacy. With ONX-0914 a specific inhibitor of the beta5i (LMP7)-immunosubunit containing proteasomes was developed that targets exclusively the proteasome subtypes mainly expressed in immune cells including B lymphocytes as the origin of multiple myeloma. Furthermore, immunosubunitspecific inhibitors have been shown to be promising tools for the therapy of autoimmune disorders. In the presented study, we analysed the concentration-dependent impact of both inhibitors on primary neurons regarding survival rate, morphological changes, and overall viability. Our results clearly demonstrate that ONX-0914, compared to Bortezomib, is less neurotoxic suggesting its potential as a putative antineoplastic drug and as a candidate for the treatment of autoimmune disorders affecting the peripheral and/or central nervous system. PMID- 29034114 TI - Cationic Nanocylinders Promote Angiogenic Activities of Endothelial Cells. AB - Polymers have been used extensively taking forms as scaffolds, patterned surface and nanoparticle for regenerative medicine applications. Angiogenesis is an essential process for successful tissue regeneration, and endothelial cell-cell interaction plays a pivotal role in regulating their tight junction formation, a hallmark of angiogenesis. Though continuous progress has been made, strategies to promote angiogenesis still rely on small molecule delivery or nuanced scaffold fabrication. As such, the recent paradigm shift from top-down to bottom-up approaches in tissue engineering necessitates development of polymer-based modular engineering tools to control angiogenesis. Here, we developed cationic nanocylinders (NCs) as inducers of cell-cell interaction and investigated their effect on angiogenic activities of human umbilical vein endothelial cells (HUVECs) in vitro. Electrospun poly (L-lactic acid) (PLLA) fibers were aminolyzed to generate positively charged NCs. The aninolyzation time was changed to produce two different aspect ratios of NCs. When HUVECs were treated with NCs, the electrostatic interaction of cationic NCs with negatively charged plasma membranes promoted migration, permeability and tubulogenesis of HUVECs compared to no treatment. This effect was more profound when the higher aspect ratio NC was used. The results indicate these NCs can be used as a new tool for the bottom up approach to promote angiogenesis. PMID- 29034115 TI - Impulse control disorder and response-inhibition alterations in Parkinson's disease. A rare case of totally absent functionality of the medial-prefrontal cortex and review of literature. AB - This report illustrates a Parkinson's disease (PD) patient with impulse-control disorder (ICD) and selective impairment in response-inhibition abilities as revealed by the performance in a functional magnetic resonance imaging (fMRI) anterior cingulate cortex - sensitive go-nogo task. In line with hypothesis on the role of response-inhibition disabilities in the arising of impulsivity in PD, the patient completely failed the go-nogo task. Moreover, fMRI acquisition revealed absent task-sensitive activity in the anterior cingulate cortex, medial prefrontal, and orbitofrontal cortices for the contrast nogo versus go, which signifying that a hypo-function of this network could be associated with ICD. A fronto-striatal and cingulo-frontal dysfunction may reflect impairment in metacognitive-executive abilities (such as response-inhibition, action monitoring, and error awareness) and promote compulsive repetition of behavior. Response-inhibition tasks may be useful in PD post-diagnostic phase, to better identify individuals at risk of developing ICD with dopaminergic medication. PMID- 29034116 TI - Evaluating a Culturally Tailored HIV Risk Reduction Intervention Among Latina Immigrants in the Farmworker Community. AB - Latina immigrants in the farmworker community are a vulnerable and understudied population at risk of acquiring HIV. Employing a CBPR framework, this pilot study was the first to evaluate the efficacy of SEPA, a CDC evidenced-based and culturally tailored HIV risk reduction intervention on a cohort of N = 110 predominantly undocumented Latina immigrants in a farmworker community. Findings revealed SEPA was effective in increasing HIV knowledge and decreasing HIV risk behaviors. However, no changes in self-efficacy were found in the present sample. We posit specific socio-cultural and structural barriers specific to the farmworker community not targeted in the original intervention may have hindered the program's capacity to influence changes in self-efficacy among this less acculturated population. Possible socio-cultural adaptations of the intervention to the target population and policy implications are discussed. PMID- 29034118 TI - Toward a Patient Registry for Cannabis Use: An Exploratory Study of Patient Use in an Outpatient Health-Care Clinic in Oregon. PMID- 29034119 TI - Chloride-Tolerant Gold(I)-Catalyzed Regioselective Hydrochlorination of Alkynes. AB - We have developed a highly regioselective homogeneous gold(I)-catalyzed anti hydrochlorination of unactivated alkynes at room temperature. We have overcome the incompatibility between conventional cationic gold catalysts and chloride by using a hydrogen-bonding activation of the Au-Cl bond. This approach is scalable, exhibits excellent functional group tolerance, and can be conducted in open air. PMID- 29034117 TI - Correlates of Cervical Cancer Screening Among Adult Latino Women: A 5-Year Follow Up. AB - BACKGROUND: Latinas have the highest incidence rates of cervical cancer in the United States, and Latinas in the United States are less likely to utilize cervical cancer screening. METHOD: We used secondary data analysis of a non clinical convenience sample (n=316 women at baseline; n=285 at five-year follow up) to examine correlates of cervical cancer screening among adult Latina women. Univariate and multiple logistic regression models using Generalized Estimated Equations (GEE) algorithm were utilized to assess the influence of the independent variables. RESULTS: Women who reported their main healthcare source as community health clinics, women who were sexually active, and women who reported that a healthcare provider discussed HIV prevention with them were more likely to report having a cervical cancer screening (aOR=2.06; CI=1.20, 3.52). CONCLUSION: The results suggest a need for continued efforts to ensure that medically underserved women (e.g., Latina women) receive counseling and education about the importance of preventive cancer screening. PMID- 29034120 TI - Modulating the External Facets of Functional Nanocrystals Enabled by Two Dimensional Oxide Crystal Templates. AB - The nature of the external crystal facets is critical to control the (photo)catalytic properties. Two-dimensional materials can expose only one type of crystal facet among zero-dimensional (0D), one-dimensional (1D), and two dimensional (2D) materials. Controllable tuning of the nature of the external crystal facets of 2D materials is highly desirable but very challenging. Here, we show that 2D particles with the desirable crystal facet for high-performance photocatalytic H2 generation can be obtained by using 2D metal oxide materials (i.e., nanosheets of Ca2Nb3O10 and Ti0.87O2) as templates taking consideration of the crystal configuration of 2D oxide and target compounds. We demonstrate that anatase TiO2 crystals grown on different nanosheet templates exhibit variations in photocatalytic hydrogen production rates from aqueous phase methanol solutions (6.7%), which can be attributed to the nature of the main crystal facet exposed. In view of the large number of 2D materials that have already been synthesized, this work offers a key to design and synthesize nanoparticles with the desirable specific external crystal facet for (photo)catalysis application. PMID- 29034121 TI - Atomically Dispersed Pd-O Species on CeO2(111) as Highly Active Sites for Low Temperature CO Oxidation. AB - Ceria-supported Pd is a promising heterogeneous catalyst for CO oxidation relevant to environmental cleanup reactions. Pd loaded onto a nanorod form of ceria exposing predominantly (111) facets is already active at 50 degrees C. Here we report a combination of CO-FTIR spectroscopy and theoretical calculations that allows assigning different forms of Pd on the CeO2(111) surface during reaction conditions. Single Pd atoms stabilized in the form of PdO and PdO2 in a CO/O2 atmosphere participate in a catalytic cycle involving very low activation barriers for CO oxidation. The presence of single Pd atoms on the Pd/CeO2 nanorod, corroborated by aberration-corrected TEM and CO-FTIR spectroscopy, is considered pivotal to its high CO oxidation activity. PMID- 29034123 TI - Ecological Niche Modeling for Filoviruses: A Risk Map for Ebola and Marburg Virus Disease Outbreaks in Uganda. AB - INTRODUCTION: Uganda has reported eight outbreaks caused by filoviruses between 2000 to 2016, more than any other country in the world. We used species distribution modeling to predict where filovirus outbreaks are likely to occur in Uganda to help in epidemic preparedness and surveillance. METHODS: The MaxEnt software, a machine learning modeling approach that uses presence-only data was used to establish filovirus - environmental relationships. Presence-only data for filovirus outbreaks were collected from the field and online sources. Environmental covariates from Africlim that have been downscaled to a nominal resolution of 1km x 1km were used. The final model gave the relative probability of the presence of filoviruses in the study area obtained from an average of 100 bootstrap runs. Model evaluation was carried out using Receiver Operating Characteristic (ROC) plots. Maps were created using ArcGIS 10.3 mapping software. RESULTS: We showed that bats as potential reservoirs of filoviruses are distributed all over Uganda. Potential outbreak areas for Ebola and Marburg virus disease were predicted in West, Southwest and Central parts of Uganda, which corresponds to bat distribution and previous filovirus outbreaks areas. Additionally, the models predicted the Eastern Uganda region and other areas that have not reported outbreaks before to be potential outbreak hotspots. Rainfall variables were the most important in influencing model prediction compared to temperature variables. CONCLUSIONS: Despite the limitations in the prediction model due to lack of adequate sample records for outbreaks, especially for the Marburg cases, the models provided risk maps to the Uganda surveillance system on filovirus outbreaks. The risk maps will aid in identifying areas to focus the filovirus surveillance for early detection and responses hence curtailing a pandemic. The results from this study also confirm previous findings that suggest that filoviruses are mainly limited by the amount of rainfall received in an area. PMID- 29034125 TI - The Theory of Planned Behavior and Disaster Preparedness. AB - INTRODUCTION: Disaster preparedness is defined as actions that ensure resources necessary to carry out an effective response are available before a disaster. Disaster preparedness requires a thorough understanding of the factors that influence performance or nonperformance of disaster preparedness behaviors (DPB). The major aim of this research was to further our understanding of DPB based on the theory of planned behavior (TPB). METHOD: This was a cross-sectional study of factors determining of DPB in a representative sample of 1233 Tehran inhabitants. Measures derived from the TPB were obtained in the unprepared and prepared people. RESULTS: Consistent with the theory, intentions to do DPB could the person predicted from attitudes, subjective norms, and perceived behavioral control with respect to DPB; and actually doing DPB was strongly related to intentions and perceptions of control assessed in the prepared people. Theoretical and practical implications of these findings are discussed. CONCLUSION: An effective intervention will not only have to encourage people of the desirability of DPB, but also to provide them with the skills and means to do it. The more strongly they can be made to feel that they have control over DPB, the more likely they are to carry out their intentions. That is, heightened perceived control tends to strengthen people's motivation to do DPB. KEY WORDS: theory of planned behavior; disaster; preparedness. PMID- 29034122 TI - Methanol on Anatase TiO2 (101): Mechanistic Insights into Photocatalysis. AB - The photoactivity of methanol adsorbed on the anatase TiO2 (101) surface was studied by a combination of scanning tunneling microscopy (STM), temperature programmed desorption (TPD), X-ray photoemission spectroscopy (XPS), and density functional theory (DFT) calculations. Isolated methanol molecules adsorbed at the anatase (101) surface show a negligible photoactivity. Two ways of methanol activation were found. First, methoxy groups formed by reaction of methanol with coadsorbed O2 molecules or terminal OH groups are photoactive, and they turn into formaldehyde upon UV illumination. The methoxy species show an unusual C 1s core level shift of 1.4 eV compared to methanol; their chemical assignment was verified by DFT calculations with inclusion of final-state effects. The second way of methanol activation opens at methanol coverages above 0.5 monolayer (ML), and methyl formate is produced in this reaction pathway. The adsorption of methanol in the coverage regime from 0 to 2 ML is described in detail; it is key for understanding the photocatalytic behavior at high coverages. There, a hydrogen-bonding network is established in the adsorbed methanol layer, and consequently, methanol dissociation becomes energetically more favorable. DFT calculations show that dissociation of the methanol molecule is always the key requirement for hole transfer from the substrate to the adsorbed methanol. We show that the hydrogen-bonding network established in the methanol layer dramatically changes the kinetics of proton transfer during the photoreaction. PMID- 29034124 TI - Multi-provincial Salmonellosis Outbreak Related to Newly Hatched Chicks and Poults: A Genomics Perspective. AB - BACKGROUND: A multi-provincial outbreak of Salmonella enterica serovar Enteritidis was linked to newly hatched chicks and poults from a single hatchery during the spring of 2015. In total, there were 61 human cases that were epidemiologically confirmed to be linked to the chicks and poults and the outbreak was deemed to have ended in the summer of 2015. METHODS: PulseNet Canada, in coordination with the affected provinces, used genome sequencing of human and agricultural Salmonella Enteritidis isolates to aid in the epidemiological investigation, while also using traditional typing methods such as phagetyping and pulsed-field gel electrophoresis (PFGE). RESULTS: All human outbreak cases, except one, were Phage Type (PT) 13a. Single nucleotide variant analysis (SNV) was able to provide a level of resolution commensurate with the results of the epidemiological investigation. SNV analysis was also able to separate PT13a outbreak-related isolates from isolates not linked to chicks or poults, while clustering some non-PT13a agricultural strains with the outbreak cluster. CONCLUSIONS: Based on conventional typing methods (phagetyping or PFGE), clinical and agricultural PT13a SE isolates would have been considered as part of a related cluster. In contrast, phagetyping would have led to the exclusion of several non- PT13a strains that clustered with the outbreak isolates using the genome sequence data. This study demonstrates the improved resolution of genome sequence analysis for coordinated surveillance and source attribution of both human and agricultural SE isolates. PMID- 29034126 TI - Development and Characterization of Methylene Blue Oleate Salt-Loaded Polymeric Nanoparticles and their Potential Application as a Treatment for Glioblastoma. AB - Glioblastoma (GBM) is an aggressive, grade IV brain tumor that develops from astrocytes located within the cerebrum, resulting in poor prognosis and survival rates following an accepted treatment regimen of surgery, radiation, and temozolomide. Thus, development of new therapeutics is necessary. During the last two decades, methylene blue (MB) has received increased attention as a potential neurotherapeutic due to its duality in brain cancers and neurodegenerative diseases. While MB is capable of easily permeating the blood-brain barrier, its therapeutic concentrations in GBM are known to induce off-target cytotoxicity and thus, another mode of drug delivery must be considered. To this end, encapsulation of formerly unusable compounds into nanoparticles (NPs) made from the biodegradable/biocompatible, FDA approved co-polymer poly (lactide-co glycolide) (PLGA) has been more commonplace when developing novel therapeutics. In this study, we formulated and characterized Pluronic F68-coated PLGA NPs containing a sodium oleate conjugate of MB (MBOS) via solvent displacement. Conjugation of sodium oleate to MB was shown to reduce its release from PLGA NPs compared to unmodified MB, leading to potential improvements in drug accumulation and therapeutic effectiveness. Our drug-loaded NP preparations, which were ~170 nm in size and had drug loading values of ~2%, were shown to reduce cell viability and cell compartment-specific, as well as overall cell, functions equivalenty, if not more so, when compared to free drug in two GBM cell lines. Following bio-distribution analysis of free MBOS compared to its nano encapsulated counterpart, drug-loaded NPs were shown to more effectively permeate the BBB, which could lead to improvements in therapeutic effectiveness upon further examination in a tumor-bearing mouse model. Based on these results, we believe that the further development and eventual utilization of this nanoformulation could lead to an effective GBM therapy that could extend patient survival rates. PMID- 29034129 TI - Sebaceous carcinoma in situ as a concept and diagnostic entity. AB - Although carcinoma in situ has been accepted as a well-established concept and diagnostic category, for reasons unknown sebaceous carcinoma in situ has not been recognized yet in general pathology or dermatopathology. Such lesions have always been misinterpreted as either benign neoplasm or sebaceous carcinoma. In the present essay, we provide a convincing account supporting sebaceous carcinoma in situ as a valid concept and diagnostic entity via critical literature review and histopathological assessment and illustration. Recognizing sebaceous carcinoma in situ as a valid concept and diagnostic entity will certainly help to avoid misinterpretation and subsequently under or over treatment of such lesions. PMID- 29034127 TI - Socio-demographic factors which significantly relate to the prediction of burns severity in children. AB - BACKGROUND: Burns are considered one of the biggest wounds and the most devastating injuries humans can receive as they have prolonged consequences which are not only physical, but psychological in addition to the cost of treatment. The aim of the study was to explore the relationships between socio-demographic factors (SDF) and the incidence and mechanisms of burn injuries in children. The objectives were to identify the multiple and various factors responsible for the occurrence of significant burns in children; to explore and investigate the relationship between these factors; to critically analyse SDF on the incidence and mechanisms of burns and to develop a contextual model with a view to informing future health care policy and health promotion programmes. METHODS: This observational, cross-sectional, descriptive study was performed in a UK Paediatric Burn Centre in the West Midlands. The research process followed the requirements for obtaining a PhD degree. The quantitative arm of this study consisted of a postal questionnaire sent to 228 parents and guardians who had visited the Burns Centre with a child during a one-year period (1st May 2011 to 30th April 2012). For the purpose of coding and analysis, a Statistical Package for the Social Science (SPSS) version-19-was used. RESULTS: 160 completed questionnaires were returned and analysed. Several key SDF were identified that linked to an increase in the incidence of burns in children. Burn injuries was significantly higher in children <= 5 years old (P<0.001) and male children (58.1%). Burns were more frequent in minority ethnic groups (p<0.001); younger aged parents <= 25 years old (p=0.048); and children living with single parents (p=0.001). A majority of burns cases resulted from spills (74.4%) and during mealtimes (p<0.001). The distributions of the Index Multiple Deprivation (IMD) was not the same across ethnic groups (p<0.002), and burns in children was significant (p<0.0005) in families living in social accommodation. CONCLUSION: The findings potentially may have clinical utility in informing future health care policy and health promotion/education programmes. Consideration must be given to the timings of such programmes, which relate to treat significant burns in non-specialised hospitals. PMID- 29034128 TI - Antibiotic sensitivity pattern of Klebsiella species in burn wounds at Bai Jerbai Wadia hospital for children, Mumbai, India-a 21 year study. AB - In our study, we attempt to look at the sensitivity pattern of the most commonly found microorganism in the wound swab of pediatric burn patients at our hospital, 'Klebsiella', to a number of commonly used antibiotics and to determine whether there has been a change in the sensitivities in the 21 year period between 1994 to 2014. The sensitivity was tested in vitro and antibiotics were administered to patients based on laboratory findings. Klebsiella shows a significant change in sensitivity pattern over last 21 years. The sensitivity of this organisms to various antibiotics tested has reduced over time. The organism out plays most of the antibiotics that it is subjected to in vitro. Our efforts should now be channelized towards limiting the use of antibiotics or a proper antibiotic policy which exercises control of irrelevant and excessive use of antibiotics. PMID- 29034130 TI - Dermoscopy of a single plaque on the finger. PMID- 29034131 TI - Update: Can breastfeeding and maternal diet prevent atopic dermatitis? PMID- 29034132 TI - VOWEL DURATION MEASUREMENT USING DEEP NEURAL NETWORKS. AB - Vowel durations are most often utilized in studies addressing specific issues in phonetics. Thus far this has been hampered by a reliance on subjective, labor intensive manual annotation. Our goal is to build an algorithm for automatic accurate measurement of vowel duration, where the input to the algorithm is a speech segment contains one vowel preceded and followed by consonants (CVC). Our algorithm is based on a deep neural network trained at the frame level on manually annotated data from a phonetic study. Specifically, we try two deep network architectures: convolutional neural network (CNN), and deep belief network (DBN), and compare their accuracy to an HMM-based forced aligner. Results suggest that CNN is better than DBN, and both CNN and HMM-based forced aligner are comparable in their results, but neither of them yielded the same predictions as models fit to manually annotated data. PMID- 29034134 TI - Long-distance dating relationships, relationship dissolution, and college adjustment. PMID- 29034136 TI - Threshold Limit Graphical Approach to Understanding Outcome Predictive Metrics: Data from the Osteoarthritis Initiative. AB - Scatter plots, bar charts, linear regressions, analysis of variance, and other graphics and tests are frequently used to document associations between an independent variable and an outcome. However, these methods are also frequently limited when understanding how to use an independent variable in subsequent research or patient management. A novel graphical approach to visualizing data the threshold limit graph-was therefore developed. Publically available data from the Osteoarthritis Initiative was used to illustrate the graphical approach to understanding the association between the change in joint space width (DeltaJSW, independent variable) over four years, and knee symptoms at four years (using the Knee Injury and Osteoarthritis Outcome Score [KOOS], dependent variable). Using data for 4,202 knees, the traditional scatter plot and linear regression approach showed a significant but weak linear relationship between the symptom subscore of the KOOS and DeltaJSW. However, the threshold level of DeltaJSW that affects symptoms was not clear from the data. The same dataset was then plotted using the threshold limit graphical approach, which revealed a non-linear relationship between the variables. In contrast to the scatter plot, plotting the average KOOS symptom subscore for subgroups of the data, with each subgroup defined using sequentially increasing or decreasing DeltaJSW thresholds revealed that symptoms got worse with joint space loss, but only when there was a significant amount of DeltaJSW. A threshold limit analysis was repeated using small, randomly selected subsets of the data (N = ~100) to demonstrate the utility of the technique for identifying trends in smaller datasets. The threshold limit graph is a simple, graphical approach that may prove helpful in understanding how an independent variable might be used to predict outcomes. This approach provides an additional option for visualizing and quantifying associations between variables. PMID- 29034133 TI - Local Cellular Responses to Titanium Dioxide from Orthopedic Implants. AB - We evaluated recently published articles relevant to the biological effects of titanium dioxide (TiO2) particles on local endogenous cells required for normal bone homeostasis, repair, and implant osseointegration. Structural characteristics, size, stability, and agglomeration of TiO2 particles alter the viability and behavior of multiple bone-related cell types. Resulting shifts in bone homeostasis may increase bone resorption and lead to clinical incidents of osteolysis, implant loosening, and joint pain. TiO2 particles that enter cells (through endocytosis or Trojan horse mechanism) may further disrupt implant retention. We propose that cellular responses to titanium-based nanoparticles contribute to pathological mechanisms underlying the aseptic loosening of titanium-based metal implants. PMID- 29034135 TI - Heterogeneity in Trajectories of Depression in Response to Divorce is Associated with Differential Risk for Mortality. AB - Divorce is a common stressful event associated with both increased rates of depression and mortality. Given evidence of significant individual differences in depression following major life stressors, we examined if heterogeneous depression responses confer differential risk for mortality. Data from a population based longitudinal study was utilized to identify individuals who experienced divorce (n=559). Prospective trajectories of depression severity from before to after divorce were identified using latent growth mixture modeling, and rates of mortality between trajectories were compared as a distal outcome. Four trajectories demonstrated strongest model fit: resilience (67%), emergent depression (10%), chronic pre-to-post divorce depression (12%), and decreasing depression (11%). Mortality base rate was 9.7% by 6 years post-event, and depression that emerged due to divorce was associated with significantly greater mortality risk compared to resilient (OR, 2.46; 95% CI, 1.05-5.81) and to married individuals, while chronic depression was not associated with greater risk. PMID- 29034137 TI - Valproic-induced Hyperammonemic Encephalopathy in a Known Case of Epilepsy. AB - Valproic acid, a broad-spectrum anticonvulsant drug, commonly causes elevated ammonia levels, which is usually asymptomatic in most cases. On rare occasions, potentially fatal hyperammonemia-induced encephalopathy can occur. We present a case of a 24-year-old female who presented to the emergency department with status epilepticus that was being managed with valproic acid. Further workup was done because of prolonged postictal state, which revealed increased ammonia levels; she was eventually diagnosed with valproic-induced hyperammonemic encephalopathy. Discontinuing valproic acid resulted in drastically improved symptoms and a gradual decline in ammonia levels. A clinician should be aware of rare drug adverse effects and drug interactions to conclusively reach the correct diagnosis. A prolonged postictal state should warrant further workup to rule out other possible etiologies. PMID- 29034138 TI - Testosterone Pellet Associated Dermatitis: Report and Review of Testopel-related Cutaneous Adverse Effects. AB - Testosterone replacement therapy is a treatment utilized for male hypogonadism. A subcutaneous testosterone pellet is a long-acting, slow-release delivery system that can be utilized as androgen replacement therapy. A 77-year-old man who was treated with testosterone pellets developed dermatitis consisting of erythematous plaques and patches on both buttocks and thighs within 28 days following the subcutaneous insertion of testosterone pellets. The skin lesions rapidly resolved with high-potency topical corticosteroid application. The same cutaneous eruption occurred with each subsequent insertion of testosterone pellets. Other cutaneous adverse events associated with testosterone pellet insertion include acne, hirsutism, and male pattern alopecia. Bleeding, bruising, fibrosis, infections, pellet extrusion, scarring, and subcutaneous nodules may also occur at the injection site. In summary, testosterone pellet-induced dermatitis is a rare adverse cutaneous event, which should be added to the list of potential testosterone pellet associated skin side effects. PMID- 29034139 TI - Aripiprazole-Induced Neutropenia in a Seven Year-Old Male: A Case Report. AB - Blood dyscrasias are the widely known side effect of the second-generation antipsychotic medications. Aripiprazole rarely causes hematological side effects and it is considered relatively safe. We present the case report of a seven-year old male who developed acute neutropenia a week after starting aripiprazole. His absolute neutrophil count (ANC) arose spontaneously once the medication was stopped. Clinicians should periodically check ANC in the patients taking aripiprazole as neutropenia could be lethal in extreme cases. To our knowledge, this is the first case report of leukopenia associated with aripiprazole in the child and adolescent population. PMID- 29034141 TI - Commercial phenoxyacetic herbicides control heavy metal uptake by wheat in a divergent way than pure active substances alone. AB - BACKGROUND: Impact of two widely used commercial herbicides, i.e. Aminopielik D 450 SL and Chwastox 300 SL, on the uptake and translocation of selected heavy metals in wheat plants Triticum aestivum L. cultivated in the laboratory pot experiments was investigated. Mineral-humus, loamy sand soil representative for the central part of Poland was applied. Bioavailable, exchangeable and total forms of Cd, Co, Cu, Zn, Pb, and Mn were determined. Transfer coefficients, translocation, and bioaccumulation factors illustrating metal migration in the plant were investigated. RESULTS: Administration of commercial herbicides significantly altered heavy metals uptake by wheat in a way distinctively different than that observed for the parent chemically pure synthetic auxins, i.e. 2,4-D and MCPA. In particular, Aminopielik D 450 SL and Chwastox 300 SL prompted heavy metals accumulation in roots as indicated by their high transfer coefficients. Further transport to above ground part of the plant was limited and element dependent. CONCLUSIONS: This work clearly shows that commercial herbicide formulations may act in a distinctively different way than pure active ingredients alone. PMID- 29034140 TI - Regulation of gene expression by translation factor eIF5A: Hypusine-modified eIF5A enhances nonsense-mediated mRNA decay in human cells. AB - Nonsense-mediated mRNA decay (NMD) couples protein synthesis to mRNA turnover. It eliminates defective transcripts and controls the abundance of certain normal mRNAs. Our study establishes a connection between NMD and the translation factor eIF5A (eukaryotic initiation factor 5A) in human cells. eIF5A modulates the synthesis of groups of proteins (the eIF5A regulon), and undergoes a distinctive two-step post-translational modification (hypusination) catalyzed by deoxyhypusine synthase and deoxyhypusine hydroxylase. We show that expression of NMD-susceptible constructs was increased by depletion of the major eIF5A isoform, eIF5A1. NMD was also attenuated when hypusination was inhibited by RNA interference with either of the two eIF5A modifying enzymes, or by treatment with the drugs ciclopirox or deferiprone which inhibit deoxyhypusine hydroxylase. Transcriptome analysis by RNA-Seq identified human genes whose expression is coordinately regulated by eIF5A1, its modifying enzymes, and the pivotal NMD factor, Upf1. Transcripts encoding components of the translation system were highly represented, including some encoding ribosomal proteins controlled by alternative splicing coupled to NMD (AS-NMD). Our findings extend and strengthen the association of eIF5A with NMD, previously inferred in yeast, and show that hypusination is important for this function of human eIF5A. In addition, they advance drug-mediated NMD suppression as a therapeutic opportunity for nonsense associated diseases. We propose that regulation of mRNA stability contributes to eIF5A's role in selective gene expression. PMID- 29034142 TI - Epidemiologic Approaches for Studying Assisted Reproductive Technologies: Design, Methods, Analysis and Interpretation. AB - PURPOSE: While considerable progress has been made since the advent of assisted reproductive technology (ART), the field remains a complex and challenging one for clinicians and researchers alike. This review discusses some of the most salient issues pertaining to the study of ART and whenever possible suggestions on how to address them. RECENT FINDINGS: More than 5 million babies have been born through ART to date, representing up to 4% of all births worldwide. While technologies continue to evolve and demand for treatment grows, it is more important than ever to conduct rigorous and timely research to help guide clinical practice that is safe and effective, and that minimizes potential short- and long-term adverse outcomes to mother and child. SUMMARY: ART research will require exceedingly more sophisticated research methods, designs, and analyses that are rooted in a reproductive epidemiological framework in order to improve future research and ultimately promote better outcomes for all subfertile couples and their children. PMID- 29034143 TI - Decision aids to increase living donor kidney transplantation. AB - PURPOSE OF REVIEW: For the more than 636,000 adults with end-stage renal disease (ESRD) in the U.S., kidney transplantation is the preferred treatment compared to dialysis. Living donor kidney transplantation (LDKT) comprised 31% of kidney transplantations in 2015, an 8% decrease since 2004. We aimed to summarize the current literature on decision aids that could be used to improve LDKT rates. RECENT FINDINGS: Decision aids are evidence-based tools designed to help patients and their families make difficult treatment decisions. LDKT decision aids can help ESRD patients, patients' family and friends, and healthcare providers engage in treatment decisions and thereby overcome multifactorial LDKT barriers. SUMMARY: We identified 12 LDKT decision aids designed to provide information about LDKT, and/or to help ESRD patients identify potential living donors, and/or to help healthcare providers make decisions about treatment for ESRD or living donation. Of these, 4 were shown to be effective in increasing LDKT, donor inquiries, LDKT knowledge, and willingness to discuss LDKT. Although each LDKT decision aid has limitations, adherence to decision aid development guidelines may improve decision aid utilization and access to LDKT. PMID- 29034145 TI - Swift tuning from spherical molybdenum microspheres to hierarchical molybdenum disulfide nanostructures by switching from solvothermal to hydrothermal synthesis route. AB - Herein, we report the synthesis of metallic molybdenum microspheres and hierarchical MoS2 nanostructures by facile template-free solvothermal and hydrothermal approach, respectively. The morphological transition of the Mo microspheres to hierarchical MoS2 nanoflower architectures is observed to be accomplished with change in solvent from ethylenediamine to water. The resultant marigold flower-like MoS2 nanostructures are few layers thick with poor crystallinity while spherical ball-like molybdenum microspheres exhibit better crystalline nature. This is the first report pertaining to the synthesis of Mo microspheres and MoS2 nanoflowers without using any surfactant, template or substrate in hydro/solvothermal regime. It is opined that such nanoarchitectures of MoS2 are useful candidates for energy related applications such as hydrogen evolution reaction, Li ion battery and pseudocapacitors. Inquisitively, metallic Mo can potentially act as catalyst as well as fairly economical Surface Enhanced Raman Spectroscopy (SERS) substrate in biosensor applications. PMID- 29034144 TI - Exercise Treatments for Psychosis: A Review. AB - Schizophrenia is a devastating mental illness that has profound effects on a person's health and quality of life. Exercise represents a promising new treatment option that may supplement current psychosocial and pharmacological interventions for psychosis. A large body of work suggests that exercise can improve cardio-metabolic and health behavior and facilitate neurogenesis in areas of the brain that are notably impacted by psychosis. Recent efforts to incorporate exercise as either stand-alone or adjunctive treatment for individuals with schizophrenia range from yoga and light stretching to moderately intense walking, bike riding, or team sports. These interventions suggest that moderately intense exercise may be beneficial for improving both positive and negative symptomatology, cognition and functioning. Indeed, exercise may be beneficial for decreasing risk factors for a wide range of health problems often observed in patients with schizophrenia, including weight gain and metabolic syndrome as well as tobacco and substance use. Given the positive results from interventions in schizophrenia patients, there is an impetus for incorporating exercise in the early stages of the disorder. Notably, individuals at ultrahigh risk (UHR) for psychosis report more sedentary behavior and perceive less benefit from exercise; interventions prior to the onset of the disorder may be helpful for increasing health behaviors, perhaps delaying or preventing the onset of psychosis. Taken together, for individuals with psychosis, exercise may provide holistic benefits for the neural to the social impairments. PMID- 29034146 TI - Course of respiratory allergy by treatment strategy based on German routine data. AB - PURPOSE: Allergic respiratory diseases represent a global health problem. The two major treatment strategies are symptom treatment and specific immunotherapy (SIT). SIT is considered the only causal treatment option available with the ability to alter the course of the disease. This study aims to describe the course of disease and medication of respiratory allergy across treatment strategies and disease groups. METHODS: The analysis is based on routine data from a German statutory health insurance. The patient cohort is observed from 2007-2012. For each year based on assured outpatient diagnoses patients are assigned to a disease group: rhinitis, asthma or both diseases. Additionally, prescribed medication is considered. Treatment comparisons are based on matched pairs. RESULTS: The study population comprises 165,446 patients with respiratory allergy. In 2007 the most frequent disease group is rhinitis (70%), followed by asthma (16%) and both diseases (14%). During the observation period a second allergic respiratory diagnosis occurs only in about 12% of rhinitis patients and 28% of asthma patients. In about 50% of patients with both diseases one of the diagnoses is omitted. These patients are more likely to no longer report their asthma diagnosis when receiving immunotherapy compared to symptom treatment. Furthermore immunotherapy reduces the frequency of asthma medication use. CONCLUSIONS: Results of detailed analysis of diagnoses reflect the alternating nature of allergic diseases. Although limited by accuracy of documentation and the lack of clinical information, the comparison of treatment strategies shows some advantages of immunotherapy regarding course of disease and asthma medication use. PMID- 29034147 TI - Elementary physical education: A focus on fitness activities and smaller class sizes are associated with higher levels of physical activity. AB - Optimizing physical activity during physical education is necessary for children to achieve daily physical activity recommendations. The purpose of this study was to examine the relationship among various contextual factors with accelerometer measured physical activity during elementary physical education. Data were collected during 2015-2016 from 281 students (1st-5th grade, 137 males, 144 females) from a private school located in a metropolitan area of Utah in the U.S. Students wore accelerometers for 12 consecutive weeks at an accelerometer wear frequency of 3 days per week during physical education. A multi-level general linear mixed effects model was employed to examine the relationship among various physical education contextual factors and percent of wear time in moderate-to vigorous physical activity (%MVPA), accounting for clustering of observations within students and the clustering of students within classrooms. Explored contextual factors included grade level, lesson context, sex, and class size. Main effects and interactions among the factors were explored in the multi-level models. A two-way interaction of lesson context and class size on %MVPA was shown to be statistically significant. The greatest differences were found to be between fitness lessons using small class sizes compared to motor skill lessons using larger class sizes (beta = 14.8%, 95% C.I. 5.7%-23.9% p < 0.001). Lessons that included a focus on fitness activities with class sizes that were < 25 students associated with significantly higher %MVPA during elementary physical education. PMID- 29034148 TI - Does a grill menu redesign influence sales, nutrients purchased, and consumer acceptance in a worksite cafeteria? AB - Worksite cafeterias are compelling venues to improve diet quality through environmental changes. We conducted a pre-post study to evaluate how a cafeteria initiated grill menu redesign influenced sales, revenue, and nutrient content of foods purchased. Secondly, we evaluated consumer opinions about menu changes to inform practices for worksite environment interventions. Monthly sales data (2012 2015) were used to compute gross sales and revenue of entrees and side dishes pre post menu changes. Alternative protein sources replaced red meat; nutrient composition and nutrients purchased were compared using Food Pro software. Consumer responses were queried using online surveys; open-ended responses were analyzed using NVivo. Differences in sales and nutrient content pre-post menu redesign were tested with Wilcoxon Rank Sum tests. Gross sales of entrees (61 vs. 222 servings/month; p = 0.01) and side dishes (120 vs. 365 servings/month; p = 0.001) increased more than three-fold post-menu changes. Revenue from entrees (312 vs. 1144 USD/month; p = 0.01) and side dishes (238 vs. 914 USD/month; p = 0.001) also increased; per entree, consumers purchased significantly more unsaturated fat (5 g), and less saturated fat (3 g) and sodium (100 mg). For side dishes, they purchased fewer calories (48 kcal) and unsaturated fat (2.9 g), but more fiber (1.8 g), and sodium (260 mg). Four themes emerged from consumer responses: the importance of 1) variety, novelty, choice; 2) cost, affordability, value; 3) health; and 4) food quality, taste. Menu redesign can improve nutrient content, while also increasing sales and revenue. Multi-dimensional assessment of the nutritional, consumer, and retailer implications is desirable practice for enacting similar environmental changes. PMID- 29034150 TI - Optical Coherence Tomography Angiography, the powerful new imaging modality for clinical ophthalmology. PMID- 29034149 TI - Limited indications of tax stamp discordance and counterfeiting on cigarette packs purchased in tobacco retailers, 97 counties, USA, 2012. AB - Increasing the per-unit cost of tobacco products is one of the strongest interventions for tobacco control. In jurisdictions with higher taxes in the U.S., however, cigarette pack litter studies show a substantial proportion of littered packs lack the appropriate tax stamp. More limited but still present counterfeiting also exists. We sought to examine the role of tobacco retailers as a source for untaxed and counterfeit products. Data collectors purchased Newport Green (menthol) or Marlboro Red cigarette packs in a national probability-based sample of tobacco retailers (in 97 counties) from June-October 2012. They made no effort to buy counterfeit or untaxed cigarettes. In this cross-sectional study, we assessed the presence, tax authority, and type (low-tech thermal vs. encrypted) of cigarette pack tax stamps; concordance of tax stamps with where the pack was purchased; and, for Marlboro cigarettes, publicly available visible indicators of counterfeiting. We purchased 2147 packs of which 2033 had tax stamps. Packs missing stamps were in states that do not require them. We found very limited discordance between store location and tax stamp(s) (< 1%). However, a substantial minority of cigarette packs had damaged tax stamps (13%). This occurred entirely with low-tech tax stamps and was not identified with encrypted tax stamps. We found no clear evidence of counterfeit products. Almost all tax stamps matched the location of purchase. Litter studies may be picking up legal tax avoidance instead of illegal tax evasion or, alternatively, purchase of illicit products requires special request by the purchaser. PMID- 29034151 TI - Aqueous shunt implantation in glaucoma. AB - Aqueous shunts or glaucoma drainage devices are increasingly utilized in the management of refractory glaucoma. The general design of the most commonly-used shunts is based on the principles of the Molteno implant: ie. a permanent sclerostomy (tube), a predetermined bleb area (plate) and diversion of aqueous humour to the equatorial region and away from the limbal subconjunctival space. These three factors make aqueous shunts more resistant to scarring as compared to trabeculectomy. The two most commonly used shunts are the Ahmed Glaucoma Valve, which contains a flow-restrictor, and the non-valved Baervedlt Glaucoma Implant. While the valved implants have a lower tendency to hypotony and related complications, the non-valved implants with larger, more-biocompatible end plate design, achieve lower intraocular pressures with less encapsulation. Non-valved implants require additional suturing techniques to prevent early hypotony and a number of these methods will be described. Although serious shunt-related infection is rare, corneal decompensation and diplopia are small but significant risks. PMID- 29034152 TI - Association of fatty acid-binding protein 2 and fat mass and obesity-associated gene polymorphism with primary open-angle glaucoma. AB - PURPOSE: The present study was carried out to investigate the association of fatty acid-binding protein 2 (FABP2) and fat mass and obesity-associated (FTO) gene polymorphism with primary open-angle glaucoma (POAG) cases and controls. MATERIALS AND METHODS: This study includes 122 POAG cases and 112 controls. FABP2 and FTO gene polymorphisms in cases and controls were evaluated by polymerase chain reaction-restriction fragment length polymorphism method. RESULTS: The mean ages were 49.88 +/- 12.34 and 53.74 +/- 11.87 years in POAG cases and control groups, respectively. The FABP2 gene AA, AT, TT genotype frequencies were 12.90%, 62.40%, 24.80% in POAG cases and 20.60%, 64.70%, 14.70% in healthy controls, respectively. The frequencies of A and T allele in POAG cases were 44.06% and 55.94% as compared to 52.94% and 47.06% in the controls. The FTO gene AA, AT, TT genotype frequencies were 2.00%, 79.20%, 18.80% in cases and 0%, 75.50%, 24.50% in healthy controls, respectively. The frequencies of A and T allele in POAG cases were 41.58% and 58.42% as compared to 37.75% and 62.25% in the controls. No significant difference in the frequencies of FABP2 and FTO genotype was found between POAG cases and controls. CONCLUSION: We could not identify the possible association of FABP2 and FTO gene polymorphism with POAG; however, further studies with larger sample size in different population are require to clarify the role of FABP2 and FTO genes in susceptibility to POAG. PMID- 29034153 TI - Efficacy of frontalis suspension with silicone rods in ptosis patients with poor Bell's phenomenon. AB - PURPOSE: The purpose of the study was to evaluate the efficacy of silicone rods as frontalis sling for correction of ptosis associated with poor Bell's phenomenon in specific situations. MATERIALS AND METHODS: A retrospective interventional case series of 25 eyes of 19 patients who underwent frontalis suspension surgery with silicone rods for ptosis correction from May 2006 to April 2011, was performed. Inclusion criteria included severe ptosis with poor Bell's phenomenon. Patient evaluation included clinical history and other relevant parameters of ptosis measurement. Final outcome measurements included postoperative lid height, lagophthalmos, complications, need for reoperation, and patient satisfaction. RESULTS: Mean age at presentation was 25.72 +/- 2.2 years. The sex ratio of male: female was 1.11. The causes of ptosis included chronic progressive external ophthalmoplegia (CPEO) in 11 eyes (44%), oculopharyngeal dystrophy in 2 (8%), third cranial nerve palsy in 7 (28%), traumatic in three eyes (12%), and iatrogenic postoperative ptosis (after orbital tumor excision) in two eyes (8%). The postoperative palpebral fissure height and margin reflex distance improved significantly (P = 0.0001). Extrusion of the sling and granuloma formation occurred in two eyes each, and these patients had to undergo sling removal. One patient developed mild exposure keratopathy and was managed conservatively. CONCLUSION: Silicone is an effective material for use in frontalis suspension in the management of severe ptosis with poor Bell's phenomenon. The elastic nature of silicone rod makes it an ideal suspensory material for patients with CPEO or third nerve palsy. PMID- 29034154 TI - Intraocular pressure monitoring by rebound tonometry in children with myopia. AB - BACKGROUND/PURPOSE: Topical atropine treatment is generally accepted to retard the progression of myopia, but it is associated with side effects such as photophobia and elevation of intraocular pressure (IOP). IOP measurements in children are challenging. The traditional applanation tonometry by direct contact with the cornea will require patient's cooperation. The rebound tonometer, using a dynamic electromechanical method for measuring IOP, shows good correlation with traditional tonometry. The purpose of this study is to evaluate the IOP of myopic children under atropine treatment using rebound tonometer and to compare the characteristics between rebound tonometry and applanation tonometry. METHODS: This study is a prospective study measuring IOP by rebound tonometer in myopic children under regular low-dose atropine treatment. We recruited children with refraction error showing myopia over -0.5 D with 0.15%, 0.3%, or 0.5% atropine eye drops use every night or every other night for myopia control. Children with treatment duration of atropine <1 month were excluded from the study. IOP measurements were performed by applanation tonometer (Tono-Pen XL, Reichert) and rebound tonometer (ICARE). The reliability of rebound tonometer was analyzed with percentage. Comparison of IOP between rebound tonometer and applanation tonometry was presented. RESULTS: The rebound tonometry was well tolerated by all participants and caused no complaints, discomfort, or adverse events. Totally 42 myopic eyes of 42 subjects were included in the study. The average age of these participants was 10 years old, range from 5 to 16. Median = 10 years old. The average IOP of the right eye by rebound tonometer was 17.4 +/- 3 mmHg, and 17.1 +/- 3 mmHg by applanation tonometry. Nearly 19%, 33%, and 24% of difference of IOP readings between rebound tonometer and Tono-Pen applanation are within 0 mmHg, 1 mmHg, and 1-2 mmHg, respectively. CONCLUSIONS: Rebound tonometry has good correlation with applanation tonometry and 76.1% of differences between two tonometers are <2 mmHg. The advantage of drop-free rebound tonometry has made it easier to obtain IOP readings in myopia children under atropine treatment. PMID- 29034155 TI - A mobile team for screening of retinopathy of prematurity in India: Cost - effectiveness, outcomes, and impact assessment. AB - PURPOSE: To study the cost effectiveness, outcomes and impact of retinopathy of prematurity (ROP) screening and management model for urban neonatal intensive care units (NICUs). STUDY DESIGN: Public health intervention study. METHODS: This study was conducted in 2013. Staff of a mobile unit assessed all infants aged less than 34 weeks of Gestation age at birth and/or birth weight 1700 GM or less admitted in five NICUs between 2013 and 2015. A trained ophthalmologist performed bedside ROP screening through dilated pupils using indirect ophthalmoscope. ROP was graded and managed as per the International Classification of Retinopathy of Prematurity treatment guidelines. Counseling and laser treatment were the interventions. The incidence, grade and determinants of ROP were estimated. Direct and indirect costs were calculated to estimate the unit cost of screening and managing a child with ROP using the model. RESULTS: The study sample included 102 preterm/underweight infants. The prevalence of ROP of different grades in either eye was 32% (95% Confidence Intervals (CI): 23.2-41.5). ROP stage I was present in 75% of these eyes. The model could help in preventing/reducing visual disability in 4 infants with advanced stages of ROP. The unit cost of ROP screening, identifying one child with ROP and addressing visual disability due to ROP was US $ 198.9, 596.7 and 4,137.4 respectively. CONCLUSION: A mobile screening is likely feasible and cost-effective method to detect ROP and offer timely intervention for NICU in urban areas with limited resources. PMID- 29034157 TI - Endoscope-assisted vitrectomy in the management of retinal detachment with corneal opacity. AB - A 51-year-old male who had suffered from right eye rhegmatogenous retinal detachment with proliferative vitreoretinopathy received surgical treatments which included the following procedures: lens extraction, scleral buckle, vitrectomy, membrane peeling, photocoagulation, and silicone oil injection. The presenting visual acuity of the right eye was light perception. Slit-lamp examination revealed corneal opacity without a visible fundus. B-scan ultrasonography revealed retinal detachment. Endoscope-assisted vitrectomy was then performed in December 2014. The procedure also included photocoagulation and silicone oil tamponade. Postoperative follow-up confirmed retinal attachment through B-scan ultrasonography. To assess the feasibility of a penetrating keratoplasty, an endoscopic evaluation was performed in May 2015. A temporal retinal break was noted, and photocoagulation was applied around the break as well as the peripheral retina. Endoscopy later confirmed the retinal attachment. From the present case, we concluded that endoscope-assisted vitrectomy could be an option for patients with corneal opacity indicated for vitreoretinal surgery. We report the first case of endoscope-assisted vitrectomy in the management of retinal detachment in Taiwan. PMID- 29034158 TI - Malignant choroidal melanoma with suspected vitreous seeding - A case report. AB - Retinal perforation with vitreous seeding is an uncommon condition of treatment naive choroidal malignant melanoma. We reported a 52-year-old male who had a pigmented tumor protruding from choroid of his right eye. He had only black shadow sensation for 4 months then a rapid deterioration of vision. Fundus examination showed vitreous haze with many pigmented materials. B-scan ultrasonography revealed a mass with low internal reflectivity and vitreous opacity. The eyeball was enucleated and a stage IIIA melanoma was confirmed by the pathologist. No local recurrences or metastases were found during 31-month follow-up. Although vitreous seeding may indicate rapid tumor growth, early enucleation may insure a better prognosis. PMID- 29034156 TI - Intraocular lens opacification after Descemet's stripping automated endothelial keratoplasty. AB - Compared with conventional penetrating keratoplasty, Descemet's stripping automated endothelial keratoplasty (DSAEK) more effectively maintain global integrity and rapid vision rehabilitation with less ocular surface disorders in patients with endothelial dysfunction. Here, we report a case of a 76-year-old woman who experienced opacification of a hydrophilic intraocular lens (IOL) approximately 10 months after DSAEK. The patient with no history of systemic disease developed pseudophakic bullous keratopathy in the right eye 2 years after undergoing cataract surgery. The best-corrected visual acuity (BCVA) of the right eye was Snellen 0.01 when presented to our hospital. DSAEK was arranged and performed smoothly. However, the graft detached over the upper part of the cornea on postoperative day 1. Thus, rebubbling was performed immediately. After the procedure, the graft was well attached, and the cornea became clear gradually. The BCVA returned to Snellen 0.6. However, progressive opacification over the anterior surface of the IOL was observed 10 months postoperatively. Vision deteriorated to 0.5 with various refractive errors during 2-year follow-up. IOL exchange may be considered if the vision is getting worse. IOL opacification may result from a direct contact between the IOL surface and exogenous air, particularly in a hydrophilic IOL, and can be a rare but significant complication after DSAEK. Clinicians planning to perform DSAEK should consider the composition of the IOL, the amount of intracameral air, duration of air filling, and high intraocular pressure. PMID- 29034159 TI - Autoimmune retinopathy associated with systemic lupus erythematosus: A diagnostic dilemma. AB - Visual loss in systemic lupus erythematosus (SLE) due to autoimmune retinopathy (AIR) is rare and easily misdiagnosed as hydroxychloroquine retinopathy. We report the rare clinical presentation of severe visual loss in a patient with SLE due to nonparaneoplastic AIR as differentiated from hydroxychloroquine toxicity. A 70-year-old female diagnosed and treated for lupus for 17 years and had been taking hydroxychloroquine for 15 years. Over the past 2 years, she developed progressive peripheral visual loss oculus uterque which rapidly advanced in the latter 6 months. Hydroxychloroquine toxicity was initially suspected, but diagnostic testing revealed a retinal degeneration. Antiretinal autoantibody testing using Western blot analysis revealed autoantibodies against 44-kDa, 46 kDa (anti-enolase), and 68-kDa proteins. Visual acuity improved in the first 6 months of treatment with mycophenolate mofetil. Our case suggests that AIR should be considered in the differential diagnosis of rapid, severe visual loss in patients with hydroxychloroquine treatment. PMID- 29034160 TI - Eosinophilic plasmacytic conjunctivitis concurrent with gingival fistula caused by Schizophyllum commune in a captive cheetah (Acinonyx jubatus). AB - We describe for the first time the diagnosis of Schizophyllum commune infection in a captive cheetah. Eosinophilic plasmacytic conjunctivitis was detected histopathologically in a biopsy specimen. Both a second surgical specimen and drainage fluid from a gingival mass and fistula contained fungal hyphae in giant cells with granulomatous inflammation. Allergic S. commune mycosis was suspected at this point. A monokaryotic isolate was characterized morphologically, and then identified genetically. Treatment with itraconazole and pimaricin was effective. PMID- 29034161 TI - Going green? Ex-post valuation of a multipurpose water infrastructure in Northern Italy. AB - A contingent valuation approach is used to estimate how households value different multipurpose infrastructures (conventional or green) for managing flood risk and water pollution. As a case study we consider the Gorla Maggiore water park located in the Lombardy Region, in Northern Italy. The park is a neo ecosystem including an infrastructure to treat waste water and store excess rain water, built in 2011 on the shore of the Olona River in an area previously used for poplar plantation. This park is the first one of this type built in Italy. A novel aspect of our research is that it not only considers the values people hold for different water ecosystem services (pollution removal, recreative use, wildlife support, flood risk reduction), but also their preferences for how those outcomes are achieved (through conventional or green infrastructures). The results indicate that the type of infrastructure delivering the ecosystem services does have an impact on individuals' preferences for freshwater ecosystem services. Households are willing to pay from 6.3 to 7.1 euros per year for a green infrastructure (compared to a conventional one), with a premium up to 16.5 euros for a surrounding made of a park. By considering the type of infrastructure within the choice model, we gain a richer understanding of the relationship between social welfare and freshwater ecosystem services. PMID- 29034162 TI - EEG source connectivity to localize the seizure onset zone in patients with drug resistant epilepsy. AB - Electrical source imaging (ESI) from interictal scalp EEG is increasingly validated and used as a valuable tool in the presurgical evaluation of epilepsy as a reflection of the irritative zone. ESI of ictal scalp EEG to localize the seizure onset zone (SOZ) remains challenging. We investigated the value of an approach for ictal imaging using ESI and functional connectivity analysis (FC). Ictal scalp EEG from 111 seizures in 27 patients who had Engel class I outcome at least 1 year following resective surgery was analyzed. For every seizure, an artifact-free epoch close to the seizure onset was selected and ESI using LORETA was applied. In addition, the reconstructed sources underwent FC using the spectrum-weighted Adaptive Directed Transfer Function. This resulted in the estimation of the SOZ in two ways: (i) the source with maximal power after ESI, (ii) the source with the strongest outgoing connections after combined ESI and FC. Next, we calculated the distance between the estimated SOZ and the border of the resected zone (RZ) for both approaches and called this the localization error ((i) LEpow and (ii) LEconn respectively). By comparing LEpow and LEconn, we assessed the added value of FC. The source with maximal power after ESI was inside the RZ (LEpow = 0 mm) in 31% of the seizures and estimated within 10 mm from the border of the RZ (LEpow <= 10 mm) in 42%. Using ESI and FC, these numbers increased to 72% for LEconn = 0 mm and 94% for LEconn <= 10 mm. FC provided a significant added value to ESI alone (p < 0.001). ESI combined with subsequent FC is able to localize the SOZ in a non-invasive way with high accuracy. Therefore it could be a valuable tool in the presurgical evaluation of epilepsy. PMID- 29034163 TI - Identification of autism spectrum disorder using deep learning and the ABIDE dataset. AB - The goal of the present study was to apply deep learning algorithms to identify autism spectrum disorder (ASD) patients from large brain imaging dataset, based solely on the patients brain activation patterns. We investigated ASD patients brain imaging data from a world-wide multi-site database known as ABIDE (Autism Brain Imaging Data Exchange). ASD is a brain-based disorder characterized by social deficits and repetitive behaviors. According to recent Centers for Disease Control data, ASD affects one in 68 children in the United States. We investigated patterns of functional connectivity that objectively identify ASD participants from functional brain imaging data, and attempted to unveil the neural patterns that emerged from the classification. The results improved the state-of-the-art by achieving 70% accuracy in identification of ASD versus control patients in the dataset. The patterns that emerged from the classification show an anticorrelation of brain function between anterior and posterior areas of the brain; the anticorrelation corroborates current empirical evidence of anterior-posterior disruption in brain connectivity in ASD. We present the results and identify the areas of the brain that contributed most to differentiating ASD from typically developing controls as per our deep learning model. PMID- 29034165 TI - Nodular onchocercosis in red deer (Cervus elaphus) in Sweden. AB - The presence of subcutaneous nodular onchocercosis was investigated at slaughter of 151 red deer (Cervus elaphus) (107 juveniles and 44 adults) between October December 2015. The prevalence of subcutaneous nodules was 56%. Nodules were located in the lumbar region of the back in 96% of the cases, and 38% of the infected red deer had additional parasitic nodules in other body locations, such as rump, thorax, forelimbs and neck. The number of nodules per deer was 1-10 in two-thirds of the affected animals, and only 2% had more than 50 nodules. Significant differences in prevalence of nodule presence were found between adult (81%) and juvenile red deer less than two years of age (45%) (p = 0.0001). Species confirmation and identification was done on 14 randomly selected nodules taken from the lumbar region of 14 deer of different geographical origin, by sequencing the mitochondrial 12S, 16S and nad5 gene fragments. The sequences were more or less identical (12S = 99-100%; 16S = 93-100%; nad5 = 92-100%) to previously published sequences for Onchocerca flexuosa. The high prevalence of nodular onchocercosis caused by O. flexuosa in red deer in Sweden shows that the investigated areas in the southern third of Sweden have favorable vector (simuliids and ceratopogonids) conditions and suitable environment for the maintenance of the parasite. To our knowledge, this is the first systematic study of O. flexuosa in red deer in Sweden. PMID- 29034164 TI - Aberrant brain functional connectivity in newborns with congenital heart disease before cardiac surgery. AB - Newborns with congenital heart disease (CHD) requiring open heart surgery are at increased risk for neurodevelopmental disabilities. Recent quantitative MRI studies have reported disrupted growth, microstructure, and metabolism in fetuses and newborns with complex CHD. To date, no study has examined whether functional brain connectivity is altered in this high-risk population after birth, before surgery. Our objective was to compare whole-brain functional connectivity of resting state networks in healthy, term newborns (n = 82) and in term neonates with CHD before surgery (n = 30) using graph theory and network-based statistics. We report for the first time intact global network topology - efficient and economic small world networks - but reduced regional functional connectivity involving critical brain regions (i.e. network hubs and/or rich club nodes) in newborns with CHD before surgery. These findings suggest the presence of early life brain dysfunction in CHD which may be associated with neurodevelopmental impairments in the years following cardiac surgery. Additional studies are needed to evaluate the prognostic, diagnostic and surveillance potential of these findings. PMID- 29034166 TI - Post-lobotomy epilepsy illustrated by the story of Ellinor Hamsun, the daughter of the famous Norwegian author Knut Hamsun. AB - In Scandinavia, at least 11.500 people were lobotomized in the period 1939-1983. Beside grave personality changes, the surgery caused epilepsy in 10-35% of the patients. Moreover, many died due to perioperative bleedings, convulsive status epilepticus or SUDEP. Most of the stories of these people are anonymous and their post-lobotomy lives are scarcely documented. If it was not for the fact that Ellinor Hamsun (1916-1987) was the daughter of the famous Nobel Prize winning Norwegian author Knut Hamsun, her lobotomy story and the subsequent iatrogenic epilepsy would probably have remained unknown. PMID- 29034167 TI - Characterization of lens based photoacoustic imaging system. AB - Some of the challenges in translating photoacoustic (PA) imaging to clinical applications includes limited view of the target tissue, low signal to noise ratio and the high cost of developing real-time systems. Acoustic lens based PA imaging systems, also known as PA cameras are a potential alternative to conventional imaging systems in these scenarios. The 3D focusing action of lens enables real-time C-scan imaging with a 2D transducer array. In this paper, we model the underlying physics in a PA camera in the mathematical framework of an imaging system and derive a closed form expression for the point spread function (PSF). Experimental verification follows including the details on how to design and fabricate the lens inexpensively. The system PSF is evaluated over a 3D volume that can be imaged by this PA camera. Its utility is demonstrated by imaging phantom and an ex vivo human prostate tissue sample. PMID- 29034168 TI - Quantitative comparison of PZT and CMUT probes for photoacoustic imaging: Experimental validation. AB - Photoacoustic (PA) signals are short ultrasound (US) pulses typically characterized by a single-cycle shape, often referred to as N-shape. The spectral content of such wideband signals ranges from a few hundred kilohertz to several tens of megahertz. Typical reception frequency responses of classical piezoelectric US imaging transducers, based on PZT technology, are not sufficiently broadband to fully preserve the entire information contained in PA signals, which are then filtered, thus limiting PA imaging performance. Capacitive micromachined ultrasonic transducers (CMUT) are rapidly emerging as a valid alternative to conventional PZT transducers in several medical ultrasound imaging applications. As compared to PZT transducers, CMUTs exhibit both higher sensitivity and significantly broader frequency response in reception, making their use attractive in PA imaging applications. This paper explores the advantages of the CMUT larger bandwidth in PA imaging by carrying out an experimental comparative study using various CMUT and PZT probes from different research laboratories and manufacturers. PA acquisitions are performed on a suture wire and on several home-made bimodal phantoms with both PZT and CMUT probes. Three criteria, based on the evaluation of pure receive impulse response, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) respectively, have been used for a quantitative comparison of imaging results. The measured fractional bandwidths of the CMUT arrays are larger compared to PZT probes. Moreover, both SNR and CNR are enhanced by at least 6 dB with CMUT technology. This work highlights the potential of CMUT technology for PA imaging through qualitative and quantitative parameters. PMID- 29034169 TI - Fluence compensation in raster-scan optoacoustic angiography. AB - Modern optical imaging techniques demonstrate significant potential for high resolution in vivo angiography. Optoacoustic angiography benefits from higher imaging depth as compared to pure optical modalities. However, strong attenuation of optoacoustic signal with depth provides serious challenges for adequate 3D vessel net mapping, and proper compensation for fluence distribution within biotissues is required. We report on the novel approach allowing to estimate effective in-depth fluence profiles for optoacoustic systems. Calculations are based on Monte Carlo simulation of light transport and account for complex illumination geometry and acoustic detection parameters. The developed fluence compensation algorithm was tested in in vivo angiography of human palm and allowed to overcome significant in-depth attenuation of probing radiation and enhance the contrast of lower dermis plexus while preserving high resolution of upper plexus imaging. PMID- 29034170 TI - Changes over time in population level transport satisfaction and mode of travel: A 13 year repeat cross-sectional study, UK. AB - AIM: The aim of the study was to examine changes over time in satisfaction with usual transport mode, explore individual and area level characteristics as mediators in the likelihood of transport satisfaction, and whether any changes in transport satisfaction varied by these factors over time. METHODS: Adults from West Central Scotland, United Kingdom, who participated at both waves of the repeat cross-sectional 'Transport, Health and Well-being Study' conducted in 1997 (n=2735) and 2010 (n=2024) were assessed. Individuals completed a detailed postal questionnaire at both time points including self-rated satisfaction with usual transport mode (using a seven point scale subsequently dichotomised to a binary outcome of satisfied (1-2) and other (3-7)). Participants reported usual transport mode for travel to various destinations. A multilevel logistic regression model was used and individuals were nested within areas (c. 4000 population). RESULTS: At the 2010 sweep, two thirds (n=1345) of individuals were satisfied with their transport choice. Those with fair/poor health were less satisfied with their usual transport compared to those in better health (Odds Ratio (OR) 0.49, p<0.001). Access to a car was associated with overall transport satisfaction (OR 2.63, p<0.001) and the effect of deprivation on transport satisfaction was mitigated when adjusted by household car access. Transport satisfaction increased more from 1997 to 2010 for retired individuals compared to those in employment (OR 1.40, p=0.032), and for those who travelled by public transport (OR 2.39, p=0.005) and using multiple modes (OR 2.19, p<0.001) compared to those who travelled by car. CONCLUSIONS: The proportion of those who travelled using public transport, active modes or by multiple mode increased journey satisfaction over time at a greater rate than those who travelled by car, highlighting that continued efforts should be made to promote these more active transport modes which have potential to impact on health. PMID- 29034171 TI - Does exposure to new transport infrastructure result in modal shifts? Patterns of change in commute mode choices in a four-year quasi-experimental cohort study. AB - BACKGROUND: Intervention studies suggest that changing the built environment may encourage a modal shift from car travel towards active travel. However, little is known about the detail of patterns of changes in travel behaviour. METHOD: Adult commuters working in Cambridge (UK) completed annual questionnaires between 2009 and 2012. Commuting was assessed using a validated seven-day travel-to-work record. The intervention consisted of the opening of a guided busway with a path for walking and cycling in 2011. Exposure to the intervention was defined as the negative of the square root of the shortest road distance from home to the busway. We investigated the association between exposure to the intervention and specific modal shifts and patterns of change, along with individual mode choice patterns over the entire four-year period. RESULTS: Five groups of patterns of change were found in our in-depth explorations: (1) no change, (2) a full modal shift, (3) a partial modal shift, (4) non-stable but patterned behaviour, and (5) complicated or apparently random patterns. A minority of participants had a directed change of either a full modal shift or, more commonly, a partial modal shift, whereas a large proportion showed a highly variable pattern. No significant associations were found between exposure to the intervention and specific modal shifts or patterns of change. CONCLUSION: Our analyses revealed a large diversity in (changes in) travel behaviour patterns over time, and showed that the intervention did not result in one specific pattern of behaviour change or produce only full modal shifts. These insights are important for improving the measurement of travel behaviour, improving our understanding of how changes in travel behaviour patterns occur, and fully capturing the potential impacts of interventions. PMID- 29034172 TI - Health and greenhouse gas mitigation benefits of ambitious expansion of cycling, walking, and transit in California. AB - The purpose of this research was to quantify health co-benefits and carbon reductions of preferred scenarios of California regional transportation plans and alternatives with ambitious levels of active transport. The alternatives were designed to examine the efficacy of independent contributions of walking, bicycling, and transit at levels consistent with the U.S. Surgeon General recommendation for physical activity. Using data from travel and health surveys, vital statistics, collision databases, and outputs from regional and statewide travel models, the Integrated Transport and Health Impacts Model estimated the change in the population disease burden, as measured by deaths and disability adjusted life years (DALYs), due to a shift from a 2010 baseline travel pattern to an alternative. Health pathways modeled were physical activity and road traffic injuries. The preferred scenarios increased statewide active transport from 40.5 to 53.4 min person-1 w-1, which was associated with an annual decrease of 909 deaths and 16,089 DALYs. Sensitivity analyses that accounted for 2040 projected age- and sex-specific population characteristics and cause-specific mortality rates did not appreciably alter the annual change in deaths and DALYs on a population basis. The ambitious, maximal alternatives increased population mean travel duration to 283 min person-1 w-1 for walking, bicycling, or transit and were associated a reduction in deaths and DALYs from 2.5 to 12 times greater than the California preferred scenarios. The alternative with the largest health impact was bicycling 283 min person-1 w-1 which led to 8,543 fewer annual deaths and 194,003 fewer DALYs, despite an increase in bicyclist injuries. With anticipated population growth, no alternative achieved decreases in carbon emissions but bicycling had the greatest potential for slowing their growth. Alternatives that included transit similarly reduced carbon emissions, but with less health benefit. Aggressive expansion of active transport is an efficacious, but underutilized policy option with significant health co-benefits for mitigating greenhouse gases. PMID- 29034173 TI - Mycobacteria Bovis osteomyelitis following intravesical BCG for bladder cancer. AB - Mycobacteria Bovis osteomyelitis is a rare adverse effect after Bacillus Calmette Guerin (BCG) intravesical therapy. A 62-year-old male presented with acute spinal cord compression three months after completing his second course of therapy for bladder cancer. The first course with intravesical BCG was complicated with an episode of hematuria. He reported intermittent subjective fever for 3 weeks thereafter which resolved with Tylenol. Interferon-alpha2 B was added to the second cycle of intravesical BCG with the indication here being residual tumor, and was tolerated well. His complete blood count and liver function tests were unremarkable on admission. MRI showed features of osteomyelitis with cord compression at T4/T5. Biopsy of the affected bone showed caseating granuloma which was positive for acid fact bacilli, later confirmed to be Mycobacterium Bovis by PCR and pyrazinamide resistance. He was started on intravenous steroids and underwent spinal cord decompression. Rifampin, Isoniazid, and Ethambutol were then commenced. His weakness improved and after two months of therapy he was asymptomatic and back to his baseline function. Osteomyelitis is a rare but serious complication. Early diagnosis and treatment is important as the outcomes are good. PMID- 29034174 TI - Rare case of Rhizobium radiobacter bioprosthetic mitral valve endocarditis. AB - Rhizobium radiobacter is an aerobic, gram negative, rod-shaped, bacterium typically found in the soil. Commonly a plant pathogen, it is also a rare human pathogen causing serious disease. Risk factors for infection include neutropenia, leukopenia, catheters, hospitalization, and low CD4+ lymphocyte count, especially in patients with malignancy or human immunodeficiency virus. There is currently limited literature to establish a definitive guideline for antimicrobial therapy and obtaining susceptibilities from a specialized laboratory is appropriate. We present a successfully treated case of R. radiobacter bioprosthetic mitral valve endocarditis in a patient with previous S. epidermidis endocarditis. PMID- 29034175 TI - Refining low protein modular feeds for children on low protein tube feeds with organic acidaemias. AB - : Children with inherited metabolic disorders (IMD) who are dependent on tube feeding and require a protein restriction are commonly fed by 'modular tube feeds' consisting of several ingredients. A longitudinal, prospective two-phase study, conducted over 18 months assessed the long-term efficacy of a pre-measured protein-free composite feed. This was specifically designed to meet the non protein nutritional requirements of children (aged over 1 year) with organic acidaemias on low protein enteral feeds and to be used as a supplement with an enteral feeding protein source. METHODOLOGY: All non-protein individual feed ingredients were replaced with one protein-free composite feed supplying fat, carbohydrate, and micronutrients. Thirteen subjects, median age 7.4y (3-15.5y), all nutritionally tube dependent (supplying nutritional intake: >= 90%, n = 12; 75%, n = 1), and diagnosed with organic acidaemias (Propionic acidaemia, n = 6; Vitamin B12 non-responsive methyl malonic acidaemia, n = 4; Isovaleric acidaemia, n = 2; Glutaric aciduria type1, n = 1); were studied. Nutritional intake, biochemistry and anthropometry were monitored at week - 8, 0, 12, 26 and 79. RESULTS: Energy intake remained unchanged, providing 76% of estimated energy requirements. Dietary intakes of vitamins, minerals and essential fatty acids significantly increased from week 0 to week 79, but sodium, potassium, magnesium, decosahexanoic acid and fibre did not meet suggested requirements. Plasma zinc, selenium, haemoglobin and MCV significantly improved, and growth remained satisfactory. Natural protein intake met WHO/FAO/UNU 2007 recommendations. CONCLUSIONS: A protein-free composite feed formulated to meet the non-protein nutritional requirements of children aged over 1 year improved nutritional intake, biochemical nutritional status, and simplified enteral tube feeding regimens in children with organic acidaemias. PMID- 29034176 TI - Imaging tumour thrombus of clear cell renal cell carcinoma: FDG PET or PSMA PET? Direct in vivo comparison of two technologies. PMID- 29034177 TI - Rapid recurrence and radiographic progression of sarcomatoid renal cell carcinoma. AB - Sarcomatoid renal cell carcinoma (sRCC) is an aggressive variant of renal cell carcinoma (RCC) that has a significantly lower overall survival. Even after prompt surgical extirpation, this histologic variant progresses rapidly. We present a case of an early recurrence and rapid progression of sRCC despite successful radical resection. PMID- 29034178 TI - Retroperitoneal fibrosis associated with IgG4-related disease diagnosed by prostate biopsy developed with acute post-renal renal failure: A case report. PMID- 29034179 TI - Case of an Airsoft pellet induced epididymal laceration and secondary testicular torsion with the loss of affected testis. PMID- 29034180 TI - Significance of fermentation process on biochemical properties of Phaseolus vulgaris (red beans). AB - Phaseolus vulgaris L. beans have been characterized as a nearly perfect food in all around the world. It is consider functional in terms of providing nutrients and energy to sustain daily life. Red bean contain high protein, mineral, fibres and chemically diverse micronutrient composition, which can be affected by processing. The main aim of this work is to investigate the effect of open and controlled fermentation on the proximate composition, mineral elements, antinutritional factors and flatulence- causing oligosaccharides of a domesticated bean (Anger, conscope and Loko). Open fermentation was done using endogenous microorganism present in the seed of beans, while controlled fermentation was done on autoclaved beans flour inoculated with thermophilic lactic culture which is a mixed strain culture containing Lactobacillus acidophilus, Bifidobacterium and Streptococcus thermophillus. The result shows that the open and controlled fermentation increased the protein digestibility up to 90% in all samples and 4 days of fermentation time, loko red bean was found to more suitable. The chemical compositions and mineral contain was also high as compared to remaining two verities. PMID- 29034181 TI - Inhibitory effect of yokukansan on the decrease in the hippocampal excitatory amino acid transporter EAAT2 in stress-maladaptive mice. AB - Chronic stress is widely recognized as a risk factor for the development of major depression and anxiety disorders. Recently, we reported that yokukansan (YKS), a traditional Japanese herbal medicine, alleviated emotional abnormality in stress maladaptive mice. The aim of the present study was to examine the effect of YKS on the expression of excitatory amino acid transporter (EAAT) 1-4 in the prefrontal cortex and hippocampus in stress-maladaptive mice. Mice were chronically exposed to inadaptable stress, i.e. repeated restraint stress for 240 min/day for 14 days. After the final exposure to stress, brains of mice were rapidly removed and the hippocampus and prefrontal cortex were dissected. Expressions of EAAT1-4 and glial fibrillary acidic protein (GFAP), a marker of astrocytes, in the brain tissues were analyzed by western blotting. Western blot analysis revealed that the expression level of EAAT2 was specifically decreased in the hippocampus of stress-maladaptive mice while there were no changes in the level of GFAP, and this change was inhibited by chronic treatment with YKS. In contrast, no changes were observed in the levels of EAAT1, EAAT3 or EAAT4 in stress-maladaptive mice. These results suggest that YKS may protect against the decrease in hippocampal EAAT2 expression induced by stress maladaptation, and this may contribute, at least in part, to the improvement of emotional abnormality. PMID- 29034183 TI - Alzheimer Disease: Clues from traditional and complementary medicine. AB - Despite modern medicine's incredible innovation and resulting accumulation of valuable knowledge, many of the world's most problematic diseases such as Alzheimer Disease (AD) still lack effective cures and treatments. Western medicine has revealed many genetic, cellular, and molecular processes that characterize AD such as protein aggregation and inflammation. As the need for novel and effective treatments increases, researchers have turned towards traditional medicine as a resource. Modern, evidence based research examining traditional and complementary remedies for AD has generated promising results within the last decade. Animal based products inhibiting cellular toxicity, anti inflammatory nutraceuticals such as omega-3 fatty acids, and plant based compounds derived from herbal medicine demonstrate viability as neuroprotective treatments and possible application in developing pharmaceuticals. Analysis of antioxidant, anti-inflammatory, and neuroprotective phytochemicals used in various traditional medicines around the world reveal potential to ameliorate and prevent the devastating neurodegeneration observed in AD. PMID- 29034182 TI - Food strategies of renal atrophy based on Avicenna and conventional medicine. AB - Kidneys have an important role in the body. Any damage to kidney role can damage many organs of the body. Traditional Persian Medicine (TPM) or Iranian traditional medicine (ITM) is an ancient temperamental medicine with many literatures about kidney diseases and Avicenna (980-1025 AD) describes kidney diseases in details. This is a review study by searching of the most important clinical and pharmaceutical TPM textbooks such as The Canon of Medicine by Avicenna and scientific data banks using keywords such as "Hozal-e-Kolye", renal atrophy, tubular atrophy, kidney, chronic kidney disease, and end stage renal disease. This paper found that "Hozal-e-Kolye" in TPM texts is the same tubular atrophy in conventional medicine due to some similar symptoms between them. Lifestyle modification and use of proposed foodstuffs can be considered as a complementary medicine in addition to conventional treatments to manage these patients. TPM scholars prescribed some foodstuffs such as camel milk, sheep's milk and Ficus carica for this disease as a complementary management. This study aimed to explain HK (the same tubular atrophy considering their similar symptoms) and introduce some foodstuffs. It seems using of foodstuffs affecting tubular atrophy based on TPM literatures can has a role as a supplemental method in company with conventional medicine management. PMID- 29034184 TI - Understanding nutrition and immunity in disease management. AB - As we search for answers to modern medicine's most prevalent and challenging problems, the relationship between nutrition, immunity, and biological function of various natural compounds are preimminent. Nutritional research involving genomics provides rational capabilities for preventing disease. Scientific advances in genomic sequencing reveal opportunities for exploring diet-health relationships and potential for individual, genotype based dietary recommendations. Utilizing molecular and genetic technology to analyze impact of nutrition on genomics and metabolism reveals that nutrients may influence certain innate and/or acquired immune functions. By analyzing immune mechanisms including their cells and complex molecules, animal models have offered relevant insight that clarifies interrelations between immunity and nutrition. Plant products also provide numerous resources through bioengineering for designing novel pharmaceuticals. Having long been employed successfully in traditional and folk medicines, plant compounds exhibit anti-inflammatory, antimicrobial, and angiogenic activity. As a result, we now have a promising arsenal for successful application of bioactive compounds. PMID- 29034185 TI - Ashtawarga plants - Suffering a triple standardization syndrome. AB - Ayurveda is one of the oldest known holistic health care systems recommending diverse medicinal uses of plants for prevention and cure of diseases and illness. World Health Organization (WHO) estimates that the holistic system is gaining more popularity due to its easy availability, low cost, congeniality, better accessibility and higher safety than allopathic medicine. Demand of herbal drugs is increasing day-by-day because of increasing popularity of herbal drugs; however market fails to meet this supply due to numerous factors, one of the important factors being the extinction of these plants from local flora. About 560 herbal species of India have been included in the Red List of Threatened species. Hence to overcome problem of non-availability of endangered species, Department of AYUSH, Govt. of India has permitted the substitution of rare herbal drugs with available substitutes on the basis of Ayurvedic concepts. Due to this, herbal drug industry has started exploiting the situation and now Ayurvedic products are suffering from a serious problem of adulteration with addition of spoiled, inferior, spurious drugs that are inferior in therapeutic/chemical properties and used to enhance profits. Adulteration with other plants degrades the quality and credibility of Ayurvedic medicine. Ashtawarga plants being an important part of many Ayurvedic formulations are also available in a very limited amount and likely to be substituted by cheap adulterants. Keeping in view the above situation, a metadata analysis has been conducted to find out types of adulteration/substitutions malpractices going on for Ashtawarga plants. PMID- 29034186 TI - Medicinal, biological and phytochemical properties of Gentiana species. AB - Gentiana, a cosmopolitan and important genus of the Gentianaceae family, comprises 400 species distributed among the world. Based on the studies of Iranian traditional medicine texts, there are some promising bioactivities for this genus that is unknown in modern medicine and some of them are still the basis of new remedies. In traditional medicine texts, Gentiana's different exclusive forms of preparations are effective for treatment of some disorders such as menstrual over-bleeding, conjunctivitis, vitiligo, animals venom poisoning, injuries, infected wounds, pain and swelling of liver, spleen, stomach and sprains of muscles. There are some activities that are the same in traditional and modern medicine such as anti-inflammatory, hepatoprotective and diuretic effects. Phytochemical investigations on the title genus have led to characterization many secondary metabolites. Secoiridoidal and iridoid glycosides such as gentiopicroside, xanthones, monoterpene alkaloid; polyphenol and flavones are the constituents that have been shown the pharmacological activities in different gentian species. This article studies the Gentiana according to the Iranian traditional and modern medicine. PMID- 29034187 TI - Electrical nerve stimulation for xerostomia: A meta-analysis of randomised controlled trials. AB - BACKGROUND: Xerostomia leads to caries, infection and overall psychological discomfort. Salivary substitutes and pharmacological agents have been tried only with temporary relief. The use of transcutaneous electrical nerve stimulation (TENS) has been contemplated on by various researchers for treatment of xerostomia. We carried out the present review as a systematic compilation and quantitative synthesis of the existing evidence related to the utility of TENS in patients with xerostomia. METHODOLOGY: Six randomized controlled trials were identified from databases for inclusion and analysed using non-Cochrane mode in RevMan 5.0 software. The heterogeneity between the studies were assessed using Forest plot, I2 statistics wherein more than 50% was considered to have moderate to severe heterogeneity and Chi-square test with a statistical P-value of less than 0.10 to indicate statistical significance. RESULTS: Results show that the effect of TENS on salivary flow rate in 369 participants with SMD [95% CI] was 0.63 [-0.03, 1.29] and was not statistically significant. CONCLUSION: To conclude, the current evidence does not support the use of TENS in patients with xerostomia and may be considered as a salivary substitute for symptomatic improvement. However the type, frequency and amplitude of current used needs to be studied in detail. High quality randomized controlled trials with adequate power are required, either to support or refute the use of TENS in xerostomia. PMID- 29034188 TI - Validation of therapeutic anti-inflammatory potential of Arjuna Ksheera Paka - A traditional Ayurvedic formulation of Terminalia arjuna. AB - Arjuna Ksheera Paka (AKP), a traditional Ayurvedic formulation of Terminalia arjuna (T. arjuna) bark powder is used for its cardioprotective effects. However, its anti-inflammatory efficacy remained unexplored. In the present study, AKP was prepared in cow milk (as per standard Ayurvedic procedure) and compared with standard hydroalcoholic extract (HA) of T. arjuna. The extracts were analyzed for gross phytoconstituents levels, and their antioxidant activity was assayed by DPPH free radical scavenging activity and inhibition of lipid peroxidation. The in vivo anti-inflammatory activity of AKP and HA was studied in carrageenan induced hind paw biphasic edema in C57BL/6 mice (at 200, 400 and 800 mg/kg BW). The percentage extraction yield of AKP was two folds higher than HA implying that the phytoconstituents in AKP were diluted by a factor of 0.5. The total polyphenol content of HA was (3.8 times) higher than AKP and the antioxidant activity of HA was also higher compared to AKP. Both the extracts, however, showed significant (p < 0.05) anti-inflammatory activity in reducing paw edema in mice. The efficacy of HA was more than AKP at early phase of inflammation, whereas, in the late phase of inflammation AKP was more efficacious and equipotent to HA. Thus, regardless of low in vitro antioxidant activity, AKP exhibited potential in vivo anti-inflammatory activity. The higher efficacy of AKP could be due to the presence of milk solids. These milk solids may act as adjuvants to T. arjuna's phytoconstituents, contributing to their sustained bioavailability, leading to higher in vivo anti-inflammatory efficacy at lower drug concentrations. PMID- 29034189 TI - Antidiabetic activity of extracts of Anacardium occidentale Linn. leaves on n streptozotocin diabetic rats. AB - Anacardium occidentale L. (Anacardiaceae) is used in South Cameroon as well as in other tropical countries by traditional practitioners as a folk remedy for treatment of diabetes mellitus. We demonstrated the antidiabetic potential of the plant extracts in n-streptozotocin diabetic rats. The aim of the current study was to investigate the antidiabetic effects of ethanol extract of leaves of A. occidentale on neonatal streptozotocin diabetic rats. Two day old neonates were injected with 100 mg/kg of streptozotocin. At the end of the experimental period of 30 days, reduction in the fasting blood glucose levels, serum insulin, glycated hemoglobin levels, serum lipid parameters, and renal function biomarkers were estimated in the control and treated rats. Histopathological examination of liver, kidney and pancreas were also carried out. On administration of 100 mg/kg of plant extract, blood glucose levels of the rats showed 8.01% and 19.25% decrease in the fasting blood glucose levels on day 15 and day 30, respectively. The administration of extract showed that the effects of extract treatment are comparable to treatment with the standard drug Pioglitazone. These results demonstrate significant antidiabetic potential of the ethanol extract of leaves of A. occidentale, justifying the use of plant in the indigenous system of medicine. Further studies for investigating the specific compound(s) responsible for such beneficial role in diabetes would open new outlook in the therapy of type 2 diabetes. PMID- 29034190 TI - Antiasthmatic related properties of Abrus precatorius leaves on various models. AB - OBJECTIVE: Asthma is a multifaceted inflammatory disorder which results into narrowing of airway with broncho-constriction and spasm. As the complex pathophysilogy of asthma, various animal models are generally used to investigate the immunological and physiological pathogenesis of disease. Abrus precatorius Linn (Fabacease) is a climbing shrub. The leaves and roots are sweet in taste and traditionally used for the treatment of asthma, bronchititis, and inflammation. A. precatorius possesses different pharmacological activities. Hence the objective of this study was to evaluate antiasthmatic activity of ethanol extract of A. precatorius leaves using various models. METHODS: In present study ethanol extract of A. precatorius leaves was evaluated for antiasthmatic activity using carrageenan induced paw edema in rats [100-150 mg/kg], histamine induced bronchospasm in guinea pig [200-400 mg/kg] and histamine induced contraction of goat tracheal chain [2.5-25 MUg/ml]. RESULTS: Result of study revealed that ethanol extract of A. precatorius significantly exhibited anti-inflammatory effects in rats, oral treatment of extract on guinea pig significantly increases histamine induced preconvulsive dysponea times and the ethanol extract of plant increases got tracheal chain precontracted with histamine. CONCLUSION: Hence present study concludes that ethanol extract of A. precatorius possesses antiasthmatic activity. PMID- 29034191 TI - Pharmacological properties of Salvia officinalis and its components. AB - Salvia officinalis (Sage) is a plant in the family of Labiatae/Lamiaceae. It is native to Middle East and Mediterranean areas, but today has been naturalized throughout the world. In folk medicine, S. officinalis has been used for the treatment of different kinds of disorders including seizure, ulcers, gout, rheumatism, inflammation, dizziness, tremor, paralysis, diarrhea, and hyperglycemia. In recent years, this plant has been a subject of intensive studies to document its traditional use and to find new biological effects. These studies have revealed a wide range of pharmacological activities for S. officinalis. Present review highlights the up-to-date information on the pharmacological findings that have been frequently reported for S. officinalis. These findings include anticancer, anti-inflammatory, antinociceptive, antioxidant, antimicrobial, antimutagenic, antidementia, hypoglycemic, and hypolipidemic effects. Also, chemical constituents responsible for pharmacological effects of S. officinalis and the clinical studies on this plant are presented and discussed. PMID- 29034192 TI - Evaluation of analgesic and anti-inflammatory activity of Bridelia retusa (Spreng) bark. AB - Several species of Bridelia have been used in the condition of pain & arthritis in Indian folk medicine. Present study revealed the preliminary phytochemical investigation and evaluation of analgesic, anti-inflammatory and anti-arthritic activity as well as underlying mechanism of bark of Bridelia retusa Spreng. (Euphorbiaceae). The bark was subjected to extraction using pet.ether, ethyl acetate and acetone. All the extracts were significantly inhibit abdominal writhings response and licking time in late phase of formalin test. Extracts could also significantly inhibit mean paw edema of rats induced by carrageenan & histamine at dose of 200 & 400 mg/kg, i.p. Test materials also showed significant dose dependent reduction in cotton pellet granuloma & acetic acid induced vascular permeability at 400 mg/kg. Oral administration of B. retusa fractions in CFA induced arthritic rats, physical, biochemical and hematological parameters observed in arthritic animals were altered significantly to near normal condition. The maximum paw edema inhibition at day 21 was observed at 400 mg/kg. It also proved significant protection against protein denaturation & RBC membrane damage. The GC-MS analysis of EA extract revealed the presence of beta sitosterol, stigmasterol, lupeol and friedelin (Pentacyclic triterpenoid). Therefore present study has demonstrated the analgesic; anti-inflammatory and anti-arthritic activities of B. retusa bark and suggested that the molecular membrane might be associated with inhibition of biochemical and hematological parameters. Overall bioactive profile of B. retusa used phytomedicine in future for inflammatory conditions. PMID- 29034194 TI - Evidence based study of antidiabetic potential of C. maxima seeds - In vivo. AB - OBJECTIVE: In vitro antidiabetic efficacy of Cucurbita maxima seed extract (CMSE) has already been studied in our previous findings. Thus, in order to validate these findings in biological system, in vivo antidiabetic activity of aqueous extract was investigated in normal as well as diabetic experimental models. METHODS: Variable doses of extract were administered orally to normal and STZ induced mild diabetic rats during fasting blood glucose (FBG) and glucose tolerance test (GTT) studies. In order to determine the extract's antidiabetic potential long-term FBG and post prandial glucose (PPG) studies were also carried out. RESULTS: Most effective dose of 200 mg kg-1 of CMSE decreases the blood glucose level (BGL) in normal rats by 29.02% at 6 h during FBG studies and 23.23% at 3 h during GTT. However, the maximum reduction observed in BGL of mild diabetic rats during GTT the same interval of time was 26.15%. Moreover, in case of severely diabetic rats a significant reduction of 39.33% was observed in FBG levels whereas, in case of positive control, rats treated with 2.5 mg kg-1 of glipizide, a fall of 42.9% in FBG levels was observed after 28 days. Results of PPG level also showed a fall of 33.20% in severely diabetic rats as compared to the positive control showing a fall of 44.2% at the end of the 28 days. CONCLUSION: Thus, the present study validate the hypoglycemic and antidiabetic effect of CMSE and hence this extract could be explored further for developing as a novel antidiabetic agent. PMID- 29034193 TI - Comparative study of herbal plants on the phenolic and flavonoid content, antioxidant activities and toxicity on cells and zebrafish embryo. AB - Natural antioxidants derived from plants have shown a tremendous inhibitory effect on free radicals in actively metabolizing cells. Overproduction of free radicals increases the risk factor of chronic diseases associated with diabetes, cancer, arthritis and cardiovascular disease. Andrographis paniculata, Cinnamon zeylanicum, Curcuma xanthorrhiza, Eugenia polyantha and Orthosiphon stamineus are ethnomedicinal plants used in the Asian region to treat various illnesses from a common fever to metabolic disease. In this study, we have quantified the total phenolic (TPC) and flavonoid content (TFC) in these plants and its inhibitory effect on 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) and 2,2'-azinobis(3 ethylbenzothiazoline-6-sulfonic acid) (ABTS) free radicals as well as the cytotoxicity effect on cell lines proliferation and zebrafish embryogenesis. Results showed that Cinnamon zeylanicum and E. polyantha have the highest phenolic and flavonoid content. Furthermore, both herbs significantly inhibited the formation of DPPH and ABTS free radicals. Meanwhile, O. stamineus exhibited minimum cytotoxicity and embryotoxicity on tested models. Good correlation between IC50 of 3T3-L1 cells and LC50 embyrotoxicity was also found. This study revealed the potent activity of antioxidant against free radical and the toxicology levels of the tested herbal plants. PMID- 29034195 TI - Protective effect of hydro-alcoholic extract of Salvia haematodes Wall root on cognitive functions in scopolamine-induced amnesia in rats. AB - Diminished cholinergic transmission may be responsible for development of amnesia. Hence, the present study was undertaken to investigate the possible protective effect of hydro-alcoholic extract of Salvia haematodes Wall root (HESH) on cognitive functions in scopolamine-induced amnesia in adult Sprague Dawley rats. The rats were divided randomly into five groups each consisting of five rats (n = 5). Rats of the groups I, II, III, IV, and V received orally normal saline (10 ml/kg b. wt.), normal saline (10 ml/kg), standard drug rivastigmine (1.5 mg/kg), HESH (20 mg/kg), and HESH (40 mg/kg), respectively once a day for fourteen days. Then, they were subjected to single dose of scopolamine (1 mg/kg b. wt. ip) except in group I on fourteenth day 60 min after respective normal saline or drug administration. They were observed for the effects on step down latency (SDL), locomotor activity and brain AChE activity for the learning and memory. The acquisition SDL, retention SDL and locomotor activity were significantly (p < 0.01) decreased while AChE activity was significantly (p < 0.01) increased in scopolamine-treated group II as compared to normal control group I. The acquisition SDL, retention SDL and locomotor activity were significantly (p < 0.01) increased while, AChE activity was significantly (p < 0.01) decreased with all the doses of HESH and in rivastigmine-treated group as compared to scopolamine-treated group II. Hydro-alcoholic extract of S haematodes root possesses protective effect on cognitive functions and may prove to be a useful memory restorative agent in the management of cognitive dysfunctions as in amnesia and Alzheimer's diseases. PMID- 29034197 TI - Characterization of Calcined Jade and its immunomodulatory effect on macrophage isolated from Swiss albino mice. AB - Calcined Jade (CJ) is a metasilicate frequently used in traditional system of medicine as tonic to vital organs with several other pharmacological activities. X-ray powder diffraction (XRPD), inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectroscopy (AAS) and CHNS analyzer techniques were used to characterize CJ sample. CJ was administered orally to Swiss albino mice at a dose of 50, 75, 100 and 200 MUg/kg body weight for 10 days and modulation of the macrophage mediated innate immune responses was studied. Flow cytometric analysis of TLR-2/4 on peritoneal macrophage revealed elevated expression of TLR 2 as compared to control. Significant increase in phagocytic activity was observed in peritoneal macrophage. The lymphoid organs weight and other toxicity parameters did not exhibit any harmful effect. To evaluate the presence of nanoparticles, CJ was dissolved in milli Q water, filtered and lyophilized. Transmission electron microscopic (TEM) analysis revealed the presence of spherical nanoparticles in CJ [14.7-142.0 nm dimension with average particle size of 64.6 nm]. In conclusion, we report stimulation of innate immune responses by CJ may partly be due to the formation of nanoparticles. Further experiments using isolated nanoparticles may further validate the role of nanoparticles. PMID- 29034196 TI - Protective effect of ethyl acetate fraction of Biophytum sensitivum extract against sodium oxalate-induced urolithiasis in rats. AB - The methanolic whole plant extract of Biophytum sensitivum (ganying cao) has been found to possess antiurolithiatic effect. The present study was undertaken to evaluate the antiurolithiatic effect of some fractions of methanolic whole plant extract of B. sensitivum (MBS) in rats as a step toward activity-directed isolation of antiurolithiatic component. The MBS was successively extracted with dichloromethane, ethyl acetate, ethanol and water to obtain fractions. Sodium oxalate (70 mg/kg, i.p.) was administered to rats for seven days to develop calcium oxalate urolithiasis. These rats were treated with two doses (20 and 40 mg/kg, p.o.) of the fractions, 1 h before sodium oxalate injections. Antiurolithiatic activity was assessed by estimating biochemical changes in urine, serum and kidney homogenate along with histological changes in kidney tissue. Sodium oxalate administration caused biochemical alterations in urine which was found to be prevented significantly by the ethyl acetate fraction. Supplementation with ethyl acetate fraction prevented the elevation of serum creatinine, uric acid and blood urea nitrogen levels. The elevated calcium, oxalate and phosphate levels in the kidney tissue homogenate of lithiatic rats were significantly reduced by the treatment with ethyl acetate fraction. The ethyl acetate fraction also caused significant decrease in lipid peroxidation activity, accumulation of calcium oxalate deposits and histological changes in the kidney tissue. The results showed that the antiurolithiatic component of the methanolic whole plant extract of the plant is contained in the ethyl acetate fraction. The effect is attributed to its diuretic, antioxidant, nephroprotective properties and effect on lowering the concentration of urinary stone-forming constituents. PMID- 29034198 TI - Phenolic constituents and modulatory effects of Raffia palm leaf (Raphia hookeri) extract on carbohydrate hydrolyzing enzymes linked to type-2 diabetes. AB - This study sought to investigate the effects of Raffia palm (Raphia hookeri) leaf extract on enzymes linked to type-2 diabetes mellitus (T2DM) and pro-oxidant induced oxidative stress in rat pancreas. The extract was prepared and its alpha amylase and alpha-glucosidase inhibitory effects were determined. Radical [2,2 diphenyl-1-picrylhydrazyl (DPPH)] scavenging and Fe2+-chelating abilities, and inhibition of Fe2+-induced lipid peroxidation in rat pancreas homogenate were assessed. Furthermore, total phenol and flavonoid contents, reducing property, and high performance liquid chromatography diode array detector (HPLC-DAD) fingerprint of the extract were also determined. Our results revealed that the extract inhibited alpha-amylase (IC50 = 110.4 MUg/mL) and alpha-glucosidase (IC50 = 99.96 MUg/mL) activities in concentration dependent manners which were lower to the effect of acarbose (amylase: IC50 = 18.30 MUg/mL; glucosidase: IC50 = 20.31 MUg/mL). The extract also scavenged DPPH radical, chelated Fe2+ and inhibited Fe2+-induced lipid peroxidation in rat pancreas all in concentration dependent manners with IC50 values of 402.9 MUg/mL, 108.9 MUg/mL and 367.0 MUg/mL respectively. The total phenol and flavonoid contents were 39.73 mg GAE/g and 21.88 mg QAE/g respectively, while the reducing property was 25.62 mg AAE/g. The HPLC analysis revealed the presence of chlorogenic acid (4.17 mg/g) and rutin (5.11 mg/g) as the major phenolic compounds in the extract. Therefore, the ability of the extract to inhibit carbohydrate hydrolyzing enzymes and protect against pancreatic oxidative damage may be an important mechanisms supporting its antidiabetic properties and could make Raffia palm leaf useful in complementary/alternative therapy for management of T2DM. However, further studies such as in vivo should be carried out. PMID- 29034201 TI - Evaluation of Zanthoxylum armatum Roxb for in vitro biological activities. AB - Zanthoxylum armatum fruits are used traditionally as a spice in various food preparations. The aim of this study was analysis of antimicrobial, cytotoxic, phytotoxic, insecticidal, and anti-leishmanial activity. The crude extract showed 86 +/- 10% antifungal activity (Agar tube dilution method) against Trichophyton longifusis while n-hexane, chloroform, and aqueous-methanol fractions inhibited this pathogen by 90 +/- 7, 85 +/- 10 and 70 +/- 9% respectively. The n-hexane and aqueous-methanol fraction also, respectively, showed 40 +/- 10 and 87 +/- 9% inhibition of Microsporum canis. Chloroform fraction also displayed antifungal activity against Aspergillus flavus (60 +/- 10%) and aqueous-methanol fraction against F. solani (40 +/- 8%). The crude ethanolic extract and its chloroform and aqueous-methanol fraction exhibited significant toxicity (Brine shrimps lethality assay) against brine shrimps having LC50 value of 6.66 +/- 1.1, 21.4 +/- 3.3 and 29.6 +/- 3.9 MUg/ml, respectively. The crude ethanolic extract and its n-hexane soluble portion exhibited good anti-leishmanial activity (well serial dilution method) each having IC50 values of 50 +/- 5 MUg/ml. The crude extract and various fractions possessed excellent herbicidal activity (Lemna minor assay), and caused more than 90% inhibition of the plant growth at 1000 MUg/mL. The ethanolic extract, n-hexane and chloroform soluble portions caused 90% mortality in insecticidal activity (direct contact method) of Rhyzopertha dominica. The ethanolic extract and its n-hexane soluble portion, respectively, caused 80 and 90% mortality of Callosobruchus analis. The present study showed that the tested fruit extracts of Z. armatum exhibited strong antifungal, cytotoxic, phytotoxic, insecticidal, and anti-leishmanial effects. PMID- 29034199 TI - Cardioprotective effects of Achillea wilhelmsii on the isolated rat heart in ischemia-reperfusion. AB - CONTEXT: There are some reports about protective effects of Achillea on the heart. OBJECTIVE: We investigated the effect of Achillea wilhelmsii extract on cardiac function during ischemia-reperfusion (I/R) injury in the isolated rat heart. MATERIALS AND METHODS: 60 male Wistar rats were randomly divided into 6 groups; 1: Control group, 2: Control-ischemia (CI) 3: vitamin C (10 mg/kg), 4-6: Extract groups (E 100, E 200 and E 400 mg/kg). The animals received normal saline, vitamin C or A. wilhelmsii extract orally for 4 weeks. At the end of the treatment, the hearts were subjected to in vitro I/R Injury (20 min of global ischemia, followed by 40 min of reperfusion, Langendorff's mode). Heart rate (HR) and left ventricular pressure (LVP) were measured using a pressure transducer connected to a data acquisition system. Lactate dehydrogenase (LDH) and creatine kinase (CK) activities in the effluent were measured to determine the myocardial injury degree. The malondialdehyde (MDA), total thiol groups (-SH), superoxide anion dismutase (SOD) and catalase (CAT) in myocardial tissue were detected to determine the oxidative stress degree. RESULTS: Pretreatment with Achillea wilhlemsii significantly decreased the LDH, CK activities, and MDA level, while it increased the LVDP, +/-dp/dtmax, rate-pressure product (RPP), SH groups, SOD and CAT activities, and also the coronary artery flow. DISCUSSION AND CONCLUSION: Our findings indicated that Achillea wilhelmsii could provide protection for heart against the I/R injury which may be related to the improvement of myocardial oxidative stress states. PMID- 29034200 TI - Promising effect of Rosa damascena extract on high-fat diet-induced nonalcoholic fatty liver. AB - NAFLD is a chronic liver disease that affects a high proportion of the world's population which causes metabolic and hepatic damages. Rosa damascena Mill is traditionally used as a dietary supplement for liver disorders. This study was carried out to determine the beneficial effect of standardized extract of R. damascena on animal model of nonalcoholic fatty liver disease (NAFLD). NAFLD was induced by high-fat diet (HFD) in Wistar rats. HFD rats showed an increase (p < 0.05) in the plasma lipid levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL), and reduced the high-density lipoprotein (HDL) levels. R. damascena significantly reduced the elevation of final body weight, liver fat accumulation, TG, TC, LDL-C concentrations and hepatic enzymes (p < 0.05). Histopathological examination of hepatic tissue confirmed the therapeutic effect of R. damascena. Improvement of total antioxidant power activity, total thiol content, MPO enzyme activity, and also lipid peroxidation were also considered in treated animals (p < 0.05). HPLC analysis showed that phenolic compounds including gallic acid, quercetin and syringic acid are the main bioactive compounds of R. damascena hydroalcoholic extract. In conclusion, R. damascena dietary supplementation has a therapeutic effect in NAFLD. Improvement of oxidative stress associated damage in liver tissue is among the main pharmacological mechanisms involved in therapeutic activity of the plant. PMID- 29034203 TI - Immediate effect of bitter gourd, ash gourd, Knol-khol juices on blood sugar levels of patients with type 2 diabetes mellitus: A pilot study. AB - AIM: The aim of this study was to investigate the immediate effect of bitter gourd, Knol-khol, and ash gourd juices on blood glucose level among Type II diabetes mellitus patients. METHODS: In 2015, pilot study was conducted randomly enrolling 30 patients with type 2 diabetes mellitus into three groups in SRK college, India. The first group received bitter gourd juice at FBS range between 120 to 300 mg per dl. The second, third group received Knol-khol, ash gourd juice respectively in the same range of fasting blood sugar level. Blood sugar level was evaluated 1/2 hour interval till 2 h after received respective juices. Data were collected for statistical analysis. RESULTS: The mean blood glucose concentration in bitter gourd group was not statistically significant between time points, (P = .176). However, 90 min after the intake of bitter gourd juice shows statistical significant reduction of blood glucose level when compare with fasting level, (p = .049). After Knol khol juice the mean blood glucose level differed statistically significant between time points, shown in (p = .029). But no statistical changes seen in ash gourd group. As a result bitter gourd juice is immediately reducing the blood glucose level, while Knol khol juice reduces the blood sugar level gradually for longer period of 120 min. CONCLUSION: This study shows the significance of hypoglycemic effects of bitter gourd and Knol khol juices among the type 2 Diabetic patients. Hence Bitter gourd juice, Knol khol juices may be beneficial in Diabetes patients to reduce the blood glucose level. PMID- 29034202 TI - Wound healing potentials of Thevetia peruviana: Antioxidants and inflammatory markers criteria. AB - Thevetia peruviana is a medicinal plant used in the treatment of external wounds, infected area, ring worms, tumours etc. in traditional system of medicine. The aim of the study was to evaluate the wound healing potentials of T. peruviana leaves hexane (LH) and fruit rind (FW) water extracts and to prove the folkloric claims. The antimicrobial, antioxidant and anti-inflammatory potentials could be important strategies in defining potent wound healing drug. Based on these approaches the current study was designed using incision, excision and dead space wound models with the biochemical, antioxidant enzymes and inflammatory marker analysis. The fruit rind water extract showed highest WBS of 1133 +/- 111.4 g. The extracts in excision model retrieved the excised wound i.e. complete healing of wound at day 14. The hydroxyproline content of FW and LH treated dry granuloma tissue was increased to 65.73 +/- 3.2 mg/g and 53.66 +/- 0.38 mg/g, accompanied by elevations of hexosamine and hexauronic acid with upregulation of GSH, catalase, SOD, peroxidase and the down regulation of the inflammatory marker (NO) and oxidative stress marker (LPO) in wet granulation tissue was documented. Conclusively, both the extracts showed enhanced WBS, rate of wound contraction, skin collagen tissue development, and early epithelisation. Therapeutic wound healing effect was further proven by reduced free radicals and inflammatory makers associated with enhanced antioxidants and connective tissue with histological evidence of more collagen formation. The present research could establish T. peruviana as potential source of effective wound healing drugs. PMID- 29034204 TI - Studies on analgesic, anti-inflammatory activities of stem and roots of Inula cuspidata C.B Clarke. AB - The present study was carried out to evaluate analgesic and anti-inflammatory activities in Inula cuspidata stem and root extracts along with heavy metals estimation in stem and root powder. Stem and roots were extracted with chloroform (ICSCE, ICRCE) and methanol (ICSME, ICRME). Acute oral toxicity of all extracts was determined by OECD guidelines 425. Analgesic activity was investigated by using hot plate and acetic acid induced writhing models. Anti-inflammatory activity (acute) of all extracts was evaluated by carrageenan induced paw edema model. In addition, root and stem powder was screened for heavy metals (As, Pb, Cd, Hg) estimation using atomic absorption spectroscopy. In acute toxicity study no mortality was observed when each extract was orally administered with 2.0 g/kg. At the doses (100 and 200 mg/kg) ICRME followed by ICSME showed significant and dose dependent analgesic and anti-inflammatory effects compared with chloroform extracts. The heavy metals concentration in stem and root powders was found to be within the permissible limits as recommended by WHO for herbal raw materials. The findings of the present study validated the folkloric use of Inula cuspidata as analgesic and anti-inflammatory. In addition, the results intimate that heavy metals present in raw material were found to be within the defined limits, and it exhibits that the therapeutic efficacy of plant may not be effected, which can be otherwise possibly effected if the plant sequester high concentration of heavy metals from the polluted environment as well as from the soil rich in pesticides and sewage sludge etc. PMID- 29034205 TI - Kaempferia parviflora rhizome extract and Myristica fragrans volatile oil increase the levels of monoamine neurotransmitters and impact the proteomic profiles in the rat hippocampus: Mechanistic insights into their neuroprotective effects. AB - Potentially useful in the treatment of neurodegenerative disorders, Kaempferia parviflora and Myristica fragrans have been shown to possess a wide spectrum of neuropharmacological activities and neuroprotective effects in vivo and in vitro. In this study, we determined whether and how K. parviflora ethanolic extract and M. fragrans volatile oil could influence the levels of neurotransmitters and the whole proteomic profile in the hippocampus of Sprague Dawley (SD) rats. The effects of K. parviflora and M. fragrans on protein changes were analyzed by two dimensional gel electrophoresis (2D-gel), and proteins were identified by liquid chromatography tandem mass spectrometry (LC-MS/MS). The target proteins were then confirmed by Western blot. The levels of neurotransmitters were evaluated by reversed-phase high-performance liquid chromatography (RP-HPLC). The results showed that K. parviflora, M. fragrans and fluoxetine (the control drug for this study) increased serotonin, norepinephrine and dopamine in the rat hippocampus compared to that of the vehicle-treated group. Our proteomic data showed that 37 proteins in the K. parviflora group were up-regulated, while 14 were down regulated, and 27 proteins in the M. fragrans group were up-regulated, while 16 were down-regulated. In the fluoxetine treatment group, we found 29 proteins up regulated, whereas 14 proteins were down-regulated. In line with the proteomic data, the levels of GFAP, PDIA3, DPYSL2 and p-DPYSL2 were modified in the SD rat groups treated with K. parviflora, M. fragrans and fluoxetine as confirmed by Western blot. K. parviflora and M. fragrans mediated not only the levels of monoamine neurotransmitters but also the proteomic profiles in the rat hippocampus, thus shedding light on the mechanisms targeting neurodegenerative diseases. PMID- 29034208 TI - Prophylactic Cranial Irradiation Following Surgical Resection of Early-Stage Small-Cell Lung Cancer: A Review of the Literature. AB - With increasing use of low-dose screening CT scans, the diagnosis of early-stage small-cell lung cancer (SCLC) without evidence of mediastinal nodal or distant metastasis is likely to become more common, but the role of adjuvant therapies such as prophylactic cranial irradiation (PCI) are not well understood in this population. We performed a review of the literature pertaining to the impact of PCI in patients who underwent surgical resection of early-stage SCLC. Four studies were identified that were pertinent including three single-institution retrospective analyses and a National Cancer Database analysis. Based upon these studies, we estimate the rate of brain metastases to be 10-15% for Stage I and 15 25% for Stage II disease without PCI. However, the impact of PCI on the development of brain metastases and its ultimate impact on overall survival were not consistent across these studies. In summary, there is sparse evidence to guide recommendations for PCI following resection of early-stage SCLC. While it may be reasonable to offer PCI to maximize likelihood of cure, alternative strategies such as observation with close imaging follow-up can also be considered for the appropriate patient given the known neurocognitive side effects of PCI. PMID- 29034206 TI - Leukemia-Initiating Cells in T-Cell Acute Lymphoblastic Leukemia. AB - T-cell acute lymphoblastic leukemia (T-ALL) is a hematological malignancy characterized by the clonal proliferation of immature T-cell precursors. T-ALL has many similar pathophysiological features to acute myeloid leukemia, which has been extensively studied in the establishment of the cancer stem cell (CSC) theory, but the CSC concept in T-ALL is still debatable. Although leukemia initiating cells (LICs), which can generate leukemia in a xenograft setting, have been found in both human T-ALL patients and animal models, the nature and origin of LICs are largely unknown. In this review, we discuss recent studies on LICs in T-ALL and the potential mechanisms of LIC emergence in this disease. We focus on the oncogenic transcription factors TAL1, LMO2, and NOTCH1 and highlight the significance of the transcriptional regulatory programs in normal hematopoietic stem cells and T-ALL. PMID- 29034207 TI - Targeting Novel but Less Common Driver Mutations and Chromosomal Translocations in Advanced Non-Small Cell Lung Cancer. AB - Discovery of the epidermal growth factor receptor gene mutation and the anaplastic lymphoma kinase chromosomal translocation in non-small cell lung cancer has prompted efforts around the world to identify many less common targetable oncogenic drivers. Such concerted efforts have been variably successful in both non-squamous and squamous cell carcinomas of the lung. Some of the targeted therapies for these oncogenic drivers have received regulatory approval for clinical use, while others have modest clinical benefit. In this mini-review, several of these targets will be reviewed. PMID- 29034209 TI - Bridge-Induced Translocation between NUP145 and TOP2 Yeast Genes Models the Genetic Fusion between the Human Orthologs Associated With Acute Myeloid Leukemia. AB - In mammalian organisms liquid tumors such as acute myeloid leukemia (AML) are related to spontaneous chromosomal translocations ensuing in gene fusions. We previously developed a system named bridge-induced translocation (BIT) that allows linking together two different chromosomes exploiting the strong endogenous homologous recombination system of the yeast Saccharomyces cerevisiae. The BIT system generates a heterogeneous population of cells with different aneuploidies and severe aberrant phenotypes reminiscent of a cancerogenic transformation. In this work, thanks to a complex pop-out methodology of the marker used for the selection of translocants, we succeeded by BIT technology to precisely reproduce in yeast the peculiar chromosome translocation that has been associated with AML, characterized by the fusion between the human genes NUP98 and TOP2B. To shed light on the origin of the DNA fragility within NUP98, an extensive analysis of the curvature, bending, thermostability, and B-Z transition aptitude of the breakpoint region of NUP98 and of its yeast ortholog NUP145 has been performed. On this basis, a DNA cassette carrying homologous tails to the two genes was amplified by PCR and allowed the targeted fusion between NUP145 and TOP2, leading to reproduce the chimeric transcript in a diploid strain of S. cerevisiae. The resulting translocated yeast obtained through BIT appears characterized by abnormal spherical bodies of nearly 500 nm of diameter, absence of external membrane and defined cytoplasmic localization. Since Nup98 is a well known regulator of the post-transcriptional modification of P53 target genes, and P53 mutations are occasionally reported in AML, this translocant yeast strain can be used as a model to test the constitutive expression of human P53. Although the abnormal phenotype of the translocant yeast was never rescued by its expression, an exogenous P53 was recognized to confer increased vitality to the translocants, in spite of its usual and well-documented toxicity to wild-type yeast strains. These results obtained in yeast could provide new grounds for the interpretation of past observations made in leukemic patients indicating a possible involvement of P53 in cell transformation toward AML. PMID- 29034211 TI - The Role of ATRX in Glioma Biology. AB - The current World Health Organization classification of CNS tumors has made a tremendous leap from past editions by incorporating molecular criteria in addition to the pre-existing histological parameters. The revised version has had a particular impact on the classification of diffuse low-grade gliomas and their high-grade variants. The ATRX status is one of the critical markers that define the molecular classification of gliomas. In this review, we will first provide an overview of the role of ATRX in regular cell biology. Furthermore, the role of ATRX in tumorigenesis, specifically gliomas, is comprehensively elucidated. The possible correlation of ATRX status with other genetic/epigenetic modifications is also presented. We conclude by discussing some of the challenges associated with incorporating ATRX status assessment into routine clinical practice while also exploring opportunities for future diagnostics/therapeutics in gliomas based on ATRX status. PMID- 29034212 TI - Regulation of Proliferation by a Mitochondrial Potassium Channel in Pancreatic Ductal Adenocarcinoma Cells. AB - Previous results link the mitochondrial potassium channel Kv1.3 (mitoKv1.3) to the regulation of apoptosis. By synthesizing new, mitochondria-targeted derivatives (PAPTP and PCARBTP) of PAP-1, a specific membrane-permeant Kv1.3 inhibitor, we have recently provided evidence that both drugs acting on mitoKv1.3 are able to induce apoptosis and reduce tumor growth in vivo without affecting healthy tissues and cells. In the present article, by exploiting these new drugs, we addressed the question whether mitoKv1.3 contributes to the regulation of cell proliferation as well. When used at low concentrations, which do not compromise cell survival, both drugs slightly increased the percentage of cells in S phase while decreased the population at G0/G1 stage of cells from two different pancreatic ductal adenocarcinoma lines. Our data suggest that the observed modulation is related to ROS levels within the cells, opening the way to link mitochondrial ion channel function to downstream, ROS-related signaling events that might be important for cell cycle progression. PMID- 29034210 TI - Biomarkers for Response of Melanoma Patients to Immune Checkpoint Inhibitors: A Systematic Review. AB - BACKGROUND: Immune checkpoint inhibitors (ICIs), targeting CTLA-4 or PD-1 molecules, have shown impressive therapeutic results. However, only 20-40% of advanced melanoma patients have durable responses to ICI, and these positive effects must be balanced against severe off-target immune toxicity and high costs. This urges the development of predictive biomarkers for ICI response to select patients with likely clinical benefit from treatment. Although many candidate biomarkers exist, a systematic overview of biomarkers and their usefulness is lacking. OBJECTIVES: Here, we systematically review the current literature of clinical data of ICI treatment to provide an overview of candidate predictive biomarkers for ICI in melanoma patients. METHODS: To identify studies on biomarkers for clinical response or survival to ICI therapy in melanoma patients, we performed a systematic search in OVID MEDLINE and retrieved 429 publications, of which 67 met the eligibility criteria. RESULTS: Blood and genomic biomarkers were mainly studied for CTLA-4 ICI, while tumor tissue markers were analyzed for both CTLA-4 and PD-1 ICI. Blood cytology and soluble factors correlated more frequently to overall survival (OS) than to response, indicating their prognostic rather than predictive nature. Systemic T-cell response and regulation markers correlated to response, but progression-free survival or OS were not analyzed. Tumor tissue analyses revealed response correlations with mutational load, neoantigen load, immune-related gene expression, and CD8+ T-cell infiltration at the invasive margin. The predictive value of PD-L1 varied, possibly due to the influence of T-cell infiltration on tumor PD-L1 expression. Genomic biomarker studies addressed CTLA-4 and other immune-related genes. CONCLUSION: This review outlines all published biomarkers for ICI therapy and highlights potential candidate markers for future research. To date, PD-L1 is the best studied biomarker for PD-1 ICI response. The most promising candidate predictive biomarkers for ICI response have not yet been identified. Variations in outcome parameters, statistical power, and analyses hampered summary of the results. Further investigation of biomarkers in larger patient cohorts using standardized objectives and outcome measures is recommended. PMID- 29034214 TI - Pathogenic CD8+ T Cells Cause Increased Levels of VEGF-A in Experimental Malaria Associated Acute Respiratory Distress Syndrome, but Therapeutic VEGFR Inhibition Is Not Effective. AB - Malaria is a severe disease and kills over 400,000 people each year. Malarial complications are the main cause of death and include cerebral malaria and malaria-associated acute respiratory distress syndrome (MA-ARDS). Despite antimalarial treatment, lethality rates of MA-ARDS are still between 20 and 80%. Patients develop pulmonary edema with hemorrhages and leukocyte extravasation in the lungs. The vascular endothelial growth factor-A (VEGF-A) and the placental growth factor (PlGF) are vascular permeability factors and may be involved in the disruption of the alveolar-capillary membrane, leading to alveolar edema. We demonstrated increased pulmonary VEGF-A and PlGF levels in lungs of mice with experimental MA-ARDS. Depletion of pathogenic CD8+ T cells blocked pulmonary edema and abolished the increase of VEGF-A and PlGF. However, neutralization of VEGF receptor-2 (VEGFR-2) with the monoclonal antibody clone DC101 did not decrease pulmonary pathology. The broader spectrum receptor tyrosine kinase inhibitor sunitinib even increased lung pathology. These data suggest that the increase in alveolar VEGF-A and PlGF is not a cause but rather a consequence of the pulmonary pathology in experimental MA-ARDS and that therapeutic inhibition of VEGF receptors is not effective and even contra-indicated. PMID- 29034213 TI - A Promising Listeria-Vectored Vaccine Induces Th1-Type Immune Responses and Confers Protection Against Tuberculosis. AB - Deaths associated with tuberculosis (TB) is rising and accounted for 1.4 million deaths in 2015 many of which were due to drug-resistant bacteria. Vaccines represent an important medical intervention, but the current Bacilli Calmette Guerin (BCG) vaccine is not ideal for the protection of teenagers and adults. Therefore, a safe and effective vaccine is urgently needed. In this study, we designed a novel vaccine using an attenuated Listeria monocytogenes strain carrying fusion antigen FbpB-ESAT-6 (rLM) and characterized its safety and protective efficacy against Mycobacterium tuberculosis (M.tb) infection in mice. Compared to the wild type strain yzuLM4 and parental strain LMDeltaactA/plcB (LM1 2), the virulence of rLM was significantly reduced as judged by its infectious kinetics and LD50 dose. Further characterization of intravenous immunization showed that prime-boost vaccination significantly increased the levels of Th1 cytokines (IFN-gamma, IL-17, and IL-6), and enhanced cytotoxic T lymphocyte (CTL) CTLs activity, suggesting that rLM could elicit potent Th1/Th17 responses. More importantly, rLM significantly conferred the protection against M.tb H37Rv challenge. Collectively, our findings indicated that rLM is a novel and useful tool to prevent M.tb infection, and can be potentially be used to boost BCG primed immunity. PMID- 29034216 TI - A New Trick for a Conserved Enzyme: Mevalonate Kinase, a Glycosomal Enzyme, Can Be Secreted by Trypanosoma cruzi and Modulate Cell Invasion and Signaling. Is It Another Moonlighting Enzyme? PMID- 29034215 TI - The Proteome of Biologically Active Membrane Vesicles from Piscirickettsia salmonis LF-89 Type Strain Identifies Plasmid-Encoded Putative Toxins. AB - Piscirickettsia salmonis is the predominant bacterial pathogen affecting the Chilean salmonid industry. This bacterium is the etiological agent of piscirickettsiosis, a significant fish disease. Membrane vesicles (MVs) released by P. salmonis deliver several virulence factors to host cells. To improve on existing knowledge for the pathogenicity-associated functions of P. salmonis MVs, we studied the proteome of purified MVs from the P. salmonis LF-89 type strain using multidimensional protein identification technology. Initially, the cytotoxicity of different MV concentration purified from P. salmonis LF-89 was confirmed in an in vivo adult zebrafish infection model. The cumulative mortality of zebrafish injected with MVs showed a dose-dependent pattern. Analyses identified 452 proteins of different subcellular origins; most of them were associated with the cytoplasmic compartment and were mainly related to key functions for pathogen survival. Interestingly, previously unidentified putative virulence-related proteins were identified in P. salmonis MVs, such as outer membrane porin F and hemolysin. Additionally, five amino acid sequences corresponding to the Bordetella pertussis toxin subunit 1 and two amino acid sequences corresponding to the heat-labile enterotoxin alpha chain of Escherichia coli were located in the P. salmonis MV proteome. Curiously, these putative toxins were located in a plasmid region of P. salmonis LF-89. Based on the identified proteins, we propose that the protein composition of P. salmonis LF-89 MVs could reflect total protein characteristics of this P. salmonis type strain. PMID- 29034220 TI - Head and Neck Lymphoma in an Iranian Population. AB - INTRODUCTION: This study is aimed to assess the prevalence and characteristics of head and neck lymphoma in a defined group of an Iranian population. MATERIALS AND METHODS: In this retrospective study, 126,450 biopsy reports from two referral Pathology Departments, (Tehran, the capital of Iran) were evaluated. In cases with head and neck lymphoma, other variables such as age, sex, specific location of lesions, and histopathological findings were recorded. Descriptive statistics were used to measure the prevalence and characteristics of head and neck lymphoma by means of SPSS soft ware, version 18. RESULTS: In total, 513 (0.4%) cases had head and neck lymphoma (46.9% male, 27.1% female) with a mean age of 46+/-6.2. Of the total lesions, 200 (0.15%) were Hodgkin lymphoma and 313 (0.25%) were non Hodgkin lymphoma. Nodular sclerosis was the most common (62.5%) histopathological subtype among Hodgkin lymphoma. In non-Hodgkin lymphoma, diffuse large B-cell lymphoma (62.3%) had the highest frequency. In Hodgkin disease, classic Hodgkin lymphocytic rich, mixed cellularity, and lymphocyte depletion were only seen in the neck compartment. Bone involvement was only found in Hodgkin nodular lymphocytic predominant variation. In non-Hodgkin lymphoma, the tongue, palate, and vestibular mucosa were affected only by diffuse large B-cell lymphoma. Jaw bones were only involved with diffuse large B-cell lymphoma compared to other bony structures. T-cell lymphoma and mucosal associated lymphoid tissue lymphoma were also found. CONCLUSION: Diffuse large B-cell lymphoma is the most common subtype of non-Hodgkin lymphoma especially in the tongue, palate, vestibular mucosa, and jaw bones. PMID- 29034217 TI - Evolution of Salmonella-Host Cell Interactions through a Dynamic Bacterial Genome. AB - Salmonella Typhimurium has a broad arsenal of genes that are tightly regulated and coordinated to facilitate adaptation to the various host environments it colonizes. The genome of Salmonella Typhimurium has undergone multiple gene acquisition events and has accrued changes in non-coding DNA that have undergone selection by regulatory evolution. Together, at least 17 horizontally acquired pathogenicity islands (SPIs), prophage-associated genes, and changes in core genome regulation contribute to the virulence program of Salmonella. Here, we review the latest understanding of these elements and their contributions to pathogenesis, emphasizing the regulatory circuitry that controls niche-specific gene expression. In addition to an overview of the importance of SPI-1 and SPI-2 to host invasion and colonization, we describe the recently characterized contributions of other SPIs, including the antibacterial activity of SPI-6 and adhesion and invasion mediated by SPI-4. We further discuss how these fitness traits have been integrated into the regulatory circuitry of the bacterial cell through cis-regulatory evolution and by a careful balance of silencing and counter-silencing by regulatory proteins. Detailed understanding of regulatory evolution within Salmonella is uncovering novel aspects of infection biology that relate to host-pathogen interactions and evasion of host immunity. PMID- 29034218 TI - Deciphering Babesia-Vector Interactions. AB - Understanding host-pathogen-tick interactions remains a vitally important issue that might be better understood by basic research focused on each of the dyad interplays. Pathogens gain access to either the vector or host during tick feeding when ticks are confronted with strong hemostatic, inflammatory and immune responses. A prominent example of this is the Babesia spp.-tick-vertebrate host relationship. Babesia spp. are intraerythrocytic apicomplexan organisms spread worldwide, with a complex life cycle. The presence of transovarial transmission in almost all the Babesia species is the main difference between their life cycle and that of other piroplasmida. With more than 100 species described so far, Babesia are the second most commonly found blood parasite of mammals after trypanosomes. The prevalence of Babesia spp. infection is increasing worldwide and is currently classified as an emerging zoonosis. Babesia microti and Babesia divergens are the most frequent etiological agents associated with human babesiosis in North America and Europe, respectively. Although the Babesia-tick system has been extensively researched, the currently available prophylactic and control methods are not efficient, and chemotherapeutic treatment is limited. Studying the molecular changes induced by the presence of Babesia in the vector will not only elucidate the strategies used by the protozoa to overcome mechanical and immune barriers, but will also contribute toward the discovery of important tick molecules that have a role in vector capacity. This review provides an overview of the identified molecules involved in Babesia-tick interactions, with an emphasis on the fundamentally important ones for pathogen acquisition and transmission. PMID- 29034222 TI - Risk factor assessment in high-risk, bacillus Calmette-Guerin-treated, non-muscle invasive bladder cancer. AB - OBJECTIVE: To assess the risk factors associated with recurrence, progression and survival in high-risk non-muscle-invasive bladder cancer (NMIBC) patients treated with bacillus Calmette-Guerin (BCG) and validate the European Organization for Research and Treatment of Cancer (EORTC) and Spanish Urological Club for Oncological Treatment (CUETO) scores. PATIENTS AND METHODS: We retrospectively analyzed all BCG-treated NMIBC patients from 1998 to 2012. Multiple variables were tested as risk factors for recurrence-free survival and progression-free survival (PFS). Variables included age, sex, grade, stage, tumor size, number of tumors, carcinoma in situ (CIS), recurrence status, BCG strain used, smoking status, use of re-staging transurethral resection and use of single immediate postoperative instillation. We also tested the accuracy of EORTC and CUETO scores in predicting recurrence and progression. RESULTS: Overall, 123 patients were analyzed. Median (interquartile range) follow-up was 49 months. The 5-year overall survival, cancer-specific survival, recurrence-free survival and PFS were 75.0%, 89.3%, 59.4% and 79.2%, respectively. On univariate analysis, multiple tumors (>=3), concomitant CIS and smoking influenced recurrence. Regarding progression, multiple tumors, concomitant CIS and Connaught strain (vs Tice) negatively influenced PFS on univariate and multivariate analyses were independent prognostic factors. CUETO scores were accurate, with a slight overestimation, while EORTC score was not predictive of recurrence or progression. CONCLUSION: In this study, CIS and tumor multiplicity were unfavorable predictors of recurrence and progression in patients with NMIBC receiving BCG. CUETO model was superior to EORTC risk tables in predicting recurrence and progression in our BCG-treated patient population. Nonetheless, both scores overestimated recurrence and progression rates. Prospective trials are needed to validate our findings. PMID- 29034219 TI - Rab GTPases in Immunity and Inflammation. AB - Strict spatiotemporal control of trafficking events between organelles is critical for maintaining homeostasis and directing cellular responses. This regulation is particularly important in immune cells for mounting specialized immune defenses. By controlling the formation, transport and fusion of intracellular organelles, Rab GTPases serve as master regulators of membrane trafficking. In this review, we discuss the cellular and molecular mechanisms by which Rab GTPases regulate immunity and inflammation. PMID- 29034221 TI - Atypical small acinar proliferation and two or more cores of high-grade intraepithelial neoplasia on a previous prostate biopsy are significant predictors of cancer during a transperineal template-guided saturation biopsy aimed at sampling one core for each 1 mL of prostate volume. AB - OBJECTIVE: The objective of this study was to evaluate whether high-grade prostatic intraepithelial neoplasia (HGPIN) and atypical small acinar proliferation (ASAP) predict prostate cancer (PCa) during repeat transperineal template saturation biopsy with a high number of cores per prostate volume in patients with persistent clinical suspicion of PCa who underwent at least one previous negative transrectal ultrasound (TRUS)-guided biopsy. METHODS: We retrospectively evaluated 135 consecutive patients with persistent clinical suspicion of PCa, despite a set of negative TRUS-guided biopsies and increasing prostate-specific antigen levels; abnormal findings on digital rectal examination, TRUS, or magnetic resonance imaging; previous biopsy showing HGPIN; and previous biopsy showing atypical glands. Transperineal template saturation biopsy (TTSB) was performed at 5mm intervals to sample one core for each 1 mL of prostate volume. RESULTS: The median rate of biopsy cores per prostate volume was 1.00 (range: 0.75-1.39). The PCa detection rates in patients who were diagnosed with HGPIN, or had two or more cores of HGPIN or ASAP, were 53% (9/17), 89% (8/9), and 83% (10/12), respectively. Two or more HGPIN cores and ASAP were positive predictors of PCa on TTSB. The high-grade cancer rates (Gleason score [GS] >=7) in patients with ASAP and two or more cores of HGPIN were 20% and 80%, respectively. The cancer detection rate represented by a GS score >=8 in patients with ASAP or two or more cores of HGPIN at a previous TRUS-guided biopsy was 5.5% (1/18). CONCLUSION: ASAP or two or more cores of HGPIN at a previous TRUS-guided biopsy strongly indicated the presence of PCa on TTSB. PMID- 29034223 TI - 'Alzheimer's Progression Score': Development of a Biomarker Summary Outcome for AD Prevention Trials. AB - BACKGROUND: Alzheimer's disease (AD) prevention research requires methods for measurement of disease progression not yet revealed by symptoms. Preferably, such measurement should encompass multiple disease markers. OBJECTIVES: Evaluate an item response theory (IRT) model-based latent variable Alzheimer Progression Score (APS) that uses multi-modal disease markers to estimate pre-clinical disease progression. DESIGN: Estimate APS scores in the BIOCARD observational study, and in the parallel PREVENT-AD Cohort and its sister INTREPAD placebo controlled prevention trial. Use BIOCARD data to evaluate whether baseline and early APS trajectory predict later progression to MCI/dementia. Similarly, use longitudinal PREVENT-AD data to assess test measurement invariance over time. Further, assess portability of the PREVENT-AD IRT model to baseline INTREPAD data, and explore model changes when CSF markers are added or withdrawn. SETTING: BIOCARD was established in 1995 and participants were followed up to 20 years in Baltimore, USA. The PREVENT-AD and INTREPAD trial cohorts were established between 2011-2015 in Montreal, Canada, using nearly identical entry criteria to enroll high-risk cognitively normal persons aged 60+ then followed for several years. PARTICIPANTS: 349 cognitively normal, primarily middle-aged participants in BIOCARD, 125 high-risk participants aged 60+ in PREVENT-AD, and 217 similar subjects in INTREPAD. 106 INTREPAD participants donated up to four serial CSF samples. MEASUREMENTS: Global cognitive assessment and multiple structural, functional, and diffusion MRI metrics, sensori-neural tests, and CSF concentrations of tau, Abeta42 and their ratio. RESULTS: Both baseline values and early slope of APS scores in BIOCARD predicted later progression to MCI or AD. Presence of CSF variables strongly improved such prediction. A similarly derived APS in PREVENT-AD showed measurement invariance over time and portability to the parallel INTREPAD sample. CONCLUSIONS: An IRT-based APS can summarize multimodal information to provide a longitudinal measure of pre-clinical AD progression, and holds promise as an outcome for AD prevention trials. PMID- 29034224 TI - Trends in Motor Performance of First Graders: A Comparison of Cohorts from 2006 to 2015. AB - BACKGROUND: Motor performance is an important factor for health. Already in childhood, motor performance is associated with, e.g., obesity and risk factors for cardiovascular diseases. It is widely believed that the motor performance of children has declined over recent years. However, this belief is lacking clear evidence. The objective of this study was to examine trends in motor performance of first grade students during a period of 10 years (2006-2015). We examined trends in (a) aerobic fitness, (b) strength, (c) speed, and (d) balance for boys and girls separately and considered body mass index (BMI) as a potential confounder. METHODS: From 2006 to 2015, we tested 5,001 first graders [50.8% boys; mean age 6.76 (0.56) years] of 18 primary schools in Germany. Each year between 441 and 552 students of the same schools were surveyed. Performance tests were taken from the Motorik-Module Study and the "German Motor Ability Test": "6 min run," "push-ups," "20-m sprint," and "static stand." Linear regression models were conducted for statistical analysis. RESULTS: A slightly negative trend in aerobic fitness performance was revealed in boys (beta = -0.050; p = 0.012) but not in girls. In the strength performance test no trend over time was detected. Performance in speed (boys: beta = -0.094; girls: beta = -0.143; p <= 0.001) and balance tests (boys: beta = -0.142; girls: beta = -0.232; p <= 0.001) increased over time for both boys and girls. These findings held true when BMI was considered. CONCLUSION: This study only partly supported the assumption that motor performance of children has declined: in our study, aerobic fitness declined (only in boys), while strength remained stable and speed and balance even increased in both sexes. Moreover, it seems as if BMI can explain changes in performance only to a small extent. Changed lifestyles might be a substantial cause. Further research on recent trends of motor performance and interacting variables is needed to support the results of our study and to provide more knowledge on causes of these trends. PMID- 29034225 TI - The Perception of a Three-Dimensional-Printed Heart Model from the Perspective of Different Stakeholders: A Complex Case of Truncus Arteriosus. AB - The case of an 11-year-old male patient with truncus arteriosus is presented. The patient has a right aortic arch, a repaired truncus arteriosus, pulmonary artery stenosis, as well as conduit stenosis, with a complex surgical plan being discussed. In order to gather additional insight into the patient's anatomy prior to the surgery and to facilitate communication with the patient's parents, a three-dimensional (3D) model of his heart and main vessels was created from computed tomography data. Feedback was collected from different stakeholders. The patient and his parents were both struck by the size of the heart, with the parents further elaborating on how the 3D model was more intuitive a tool than medical images as well as "an helpful talking point to the other members of the family" and potentially also at school. The surgeon and cardiologist commented on gaining better understanding of the 3D relationship between a markedly narrowed right pulmonary artery and the aorta, with the surgeon ultimately coming to a decision of dividing the ascending aorta quite high to access the right pulmonary artery for patch reconstruction and thus planning to arrest the circulation beforehand. The imaging expert remarked on the potential to "improve communication in multidisciplinary meetings," while a medical trainee, who also had a chance to evaluate the model, remarked that "having the model in front of me and being able to see the exact abnormality makes this particular case much more memorable. [...] 3D printed models could have immense potential in pathology and anatomy teaching for the training of healthcare professionals." PMID- 29034228 TI - Commentary: Outbreak of Chikungunya in Pakistan. PMID- 29034227 TI - Psychostimulants As Cognitive Enhancers in Adolescents: More Risk than Reward? AB - Methylphenidate and other psychostimulants, originally developed to treat attention deficit-hyperactivity disorder, are increasingly abused by healthy adolescents and adults seeking an advantage in scholastic performance and work productivity. However, how these drugs may affect cognitive performance, especially in the young brain, remains unclear. Here, we review recent literature and emphasize the risks of abuse of psychostimulants in healthy adolescents and young adults. We conclude that while the desire for cognitive enhancement, particularly with rising costs of education and increasingly competitive nature of scholarship programs, is unlikely to diminish in the near future, it is crucial for the scientific community to thoroughly examine the efficacy and safety of these stimulants in healthy populations across development. The current dearth of knowledge on the dose-response curve, metabolism, and cognitive outcomes in adolescents following methylphenidate or other psychostimulant exposure may be perpetuating a perception of these drugs as "safe" when that might not be true for developing brains. PMID- 29034229 TI - Spatiotemporal Modeling for Fine-Scale Maps of Regional Malaria Endemicity and Its Implications for Transitional Complexities in a Routine Surveillance Network in Western Cambodia. AB - Due to the associated and substantial efforts of many stakeholders involved in malaria containment, the disease burden of malaria has dramatically decreased in many malaria-endemic countries in recent years. Some decades after the past efforts of the global malaria eradication program, malaria elimination has again featured on the global health agenda. While risk distribution modeling and a mapping approach are effective tools to assist with the efficient allocation of limited health-care resources, these methods need some adjustment and reexamination in accordance with changes occurring in relation to malaria elimination. Limited available data, fine-scale data inaccessibility (for example, household or individual case data), and the lack of reliable data due to inefficiencies within the routine surveillance system, make it difficult to create reliable risk maps for decision-makers or health-care practitioners in the field. Furthermore, the risk of malaria may dynamically change due to various factors such as the progress of containment interventions and environmental changes. To address the complex and dynamic nature of situations in low-to moderate malaria transmission settings, we built a spatiotemporal model of a standardized morbidity ratio (SMR) of malaria incidence, calculated through annual parasite incidence, using routinely reported surveillance data in combination with environmental indices such as remote sensing data, and the non environmental regional containment status, to create fine-scale risk maps. A hierarchical Bayesian frame was employed to fit the transitioning malaria risk data onto the map. The model was set to estimate the SMRs of every study location at specific time intervals within its uncertainty range. Using the spatial interpolation of estimated SMRs at village level, we created fine-scale maps of two provinces in western Cambodia at specific time intervals. The maps presented different patterns of malaria risk distribution at specific time intervals. Moreover, the visualized weights estimated using the risk model, and the structure of the routine surveillance network, represent the transitional complexities emerging from ever-changing regional endemic situations. PMID- 29034230 TI - Resilient Health System As Conceptual Framework for Strengthening Public Health Disaster Risk Management: An African Viewpoint. PMID- 29034231 TI - Editorial: The Vascular Niche in Tissue Repair: A Therapeutic Target for Regeneration. PMID- 29034226 TI - An Overview of Heart Rate Variability Metrics and Norms. AB - Healthy biological systems exhibit complex patterns of variability that can be described by mathematical chaos. Heart rate variability (HRV) consists of changes in the time intervals between consecutive heartbeats called interbeat intervals (IBIs). A healthy heart is not a metronome. The oscillations of a healthy heart are complex and constantly changing, which allow the cardiovascular system to rapidly adjust to sudden physical and psychological challenges to homeostasis. This article briefly reviews current perspectives on the mechanisms that generate 24 h, short-term (~5 min), and ultra-short-term (<5 min) HRV, the importance of HRV, and its implications for health and performance. The authors provide an overview of widely-used HRV time-domain, frequency-domain, and non-linear metrics. Time-domain indices quantify the amount of HRV observed during monitoring periods that may range from ~2 min to 24 h. Frequency-domain values calculate the absolute or relative amount of signal energy within component bands. Non-linear measurements quantify the unpredictability and complexity of a series of IBIs. The authors survey published normative values for clinical, healthy, and optimal performance populations. They stress the importance of measurement context, including recording period length, subject age, and sex, on baseline HRV values. They caution that 24 h, short-term, and ultra-short-term normative values are not interchangeable. They encourage professionals to supplement published norms with findings from their own specialized populations. Finally, the authors provide an overview of HRV assessment strategies for clinical and optimal performance interventions. PMID- 29034232 TI - Maternally Contributed Folate Receptor 1 Is Expressed in Ovarian Follicles and Contributes to Preimplantation Development. AB - Folates have been shown to play a crucial role for proper development of the embryo as folate deficiency has been associated with reduced developmental capacity such as increased risk of fetal neural tube defects and spontanous abortion. Transcripts encoding the reduced folate carrier RFC1 (SLC19A1 protein) and the high-affinity folate receptor FOLR1 are expressed in oocytes and preimplantation embryos, respectively. In this study, we observed maternally contributed FOLR1 protein during mouse and human ovarian follicle development, and 2-cell mouse embryos. In mice, FOLR1 was highly enriched in oocytes from primary, secondary and tertiary follicles, and in the surrounding granulosa cells. Interestingly, during human follicle development, we noted a high and specific presence of FOLR1 in oocytes from primary and intermediate follicles, but not in the granulosa cells. The distribution of FOLR1 in follicles was noted as membrane-enriched but also seen in the cytoplasm in oocytes and granulosa cells. In 2-cell embryos, FOLR1-eGFP fusion protein was detected as cytoplasmic and membrane-associated dense structures, resembling the distribution pattern observed in ovarian follicle development. Knock-down of Folr1 mRNA function was accomplished by microinjection of short interference (si)RNA targeting Folr1, into mouse pronuclear zygotes. This revealed a reduced capacity of Folr1 siRNA treated embryos to develop to blastocyst compared to the siRNA-scrambled control group, indicating that maternally contributed protein and zygotic transcripts sustain embryonic development combined. In summary, maternally contributed FOLR1 protein appears to maintain ovarian functions, and contribute to preimplantation development combined with embryonically synthesized FOLR1. PMID- 29034236 TI - Prognostic Value of the New Prostate Cancer International Society of Urological Pathology Grade Groups. AB - Gleason grading is the best independent predictor for prostate cancer (PCa) progression. Recently, a new PCa grading system has been introduced by the International Society of Urological Pathology (ISUP) and is recommended by the World Health Organization (WHO). Following studies observed more accurate and simplified grade stratification of the new system. Aim of this study was to compare the prognostic value of the new grade groups compared to the former Gleason Grading and to determine whether re-definition of Gleason Pattern 4 might reduce upgrading from prostate biopsy to radical prostatectomy (RP) specimen. A cohort of men undergoing RP from 2002 to 2015 at the Hospital of Goeppingen (Goeppingen, Germany) was used for this study. In total, 339 pre-operative prostatic biopsies and corresponding RP specimens, as well as additional 203 RP specimens were re-reviewed for Grade Groups according to the ISUP. Biochemical recurrence-free survival (BFS) after surgery was used as endpoint to analyze prognostic significance. Other clinicopathological data included TNM-stage and pre-operative PSA level. Kaplan-Meier analysis revealed risk stratification of patients based on both former Gleason Grading and ISUP Grade Groups, and was statistically significant using the log-rank test (p < 0.001). Both grading systems significantly correlated with TNM-stage and pre-operative PSA level (p < 0.001). Higher tumor grade in RP specimen compared to corresponding pre-operative biopsy was observed in 44 and 34.5% of cases considering former Gleason Grading and ISUP Grade Groups, respectively. Both, former Gleason Grading and ISUP Grade Groups predict survival when applied on tumors in prostatic biopsies as well as RP specimens. This is the first validation study on a large representative German community-based cohort to compare the former Gleason Grading with the recently introduced ISUP Grade Groups. Our data indicate that the ISUP Grade Groups do not improve predictive value of PCa grading and might be less sensitive in deciphering tumors with 3 + 4 and 4 + 3 pattern on RP specimen. However, the Grade Group system results less frequently in an upgrading from biopsy to the corresponding RP specimens, indicating a lower risk to miss potentially aggressive tumors not represented on biopsies. PMID- 29034234 TI - Interleukin-13 in Asthma and Other Eosinophilic Disorders. AB - Asthma is characterized by episodic, reversible airflow obstruction associated with variable levels of inflammation. Over the past several decades, there has been an increasing appreciation that the clinical presentation of asthma comprises a diverse set of underlying pathologies. Rather than being viewed as a single disease entity, asthma is now thought of as a clinical syndrome with the involvement of multiple pathological mechanisms. While it is appreciated that eosinophilia is present in only a subset of patients, it remains a key feature of asthma and other eosinophilic disorders such as atopic dermatitis, eosinophilic esophagitis, and chronic rhinosinusitis with nasal polyps. Eosinophils are bone marrow-derived leukocytes present in low numbers in health; however, during disease the type 2 cytokines [interleukins (IL)-4, -5, and -13] can induce rapid eosinophilopoiesis, prolonged eosinophil survival, and trafficking to the site of injury. In diseases such as allergic asthma there is an aberrant inflammatory response leading to eosinophilia, tissue damage, and airway pathology. IL-13 is a pleiotropic type 2 cytokine that has been shown to be integral in the pathogenesis of asthma and other eosinophilic disorders. IL-13 levels are elevated in animal models of eosinophilic inflammation and in the blood and tissue of patients diagnosed with eosinophilic disorders. IL-13 signaling elicits many pathogenic mechanisms including the promotion of eosinophil survival, activation, and trafficking. Data from preclinical models and clinical trials of IL-13 inhibitors in patients have revealed mechanistic insights into the role of this cytokine in driving eosinophilia. Promising results from clinical trials further support a key mechanistic role of IL-13 in asthma and other eosinophilic disorders. Here, we provide a perspective on the role of IL-13 in asthma and other eosinophilic disorders and describe ongoing clinical trials targeting this pathway in patients with significant unmet medical needs. PMID- 29034235 TI - Coagulofibrinolytic Changes in Patients with Post-cardiac Arrest Syndrome. AB - Whole-body ischemia and reperfusion due to cardiac arrest and subsequent return of spontaneous circulation constitute post-cardiac arrest syndrome (PCAS), which consists of four syndromes including systemic ischemia/reperfusion responses and post-cardiac arrest brain injury. The major pathophysiologies underlying systemic ischemia/reperfusion responses are systemic inflammatory response syndrome and increased coagulation, leading to disseminated intravascular coagulation (DIC), which clinically manifests as obstruction of microcirculation and multiple organ dysfunction. In particular, thrombotic occlusion in the brain due to DIC, referred to as the "no-reflow phenomenon," may be deeply involved in post-cardiac arrest brain injury, which is the leading cause of mortality in patients with PCAS. Coagulofibrinolytic changes in patients with PCAS are characterized by tissue factor-dependent coagulation, which is accelerated by impaired anticoagulant mechanisms, including antithrombin, protein C, thrombomodulin, and tissue factor pathway inhibitor. Damage-associated molecular patterns (DAMPs) accelerate not only tissue factor-dependent coagulation but also the factor XII- and factor XI-dependent activation of coagulation. Inflammatory cytokines are also involved in these changes via the expression of tissue factor on endothelial cells and monocytes, the inhibition of anticoagulant systems, and the release of neutrophil elastase from neutrophils activated by inflammatory cytokines. Hyperfibrinolysis in the early phase of PCAS is followed by inadequate endogenous fibrinolysis and fibrinolytic shutdown by plasminogen activator inhibitor-1. Moreover, cell-free DNA, which is also a DAMP, plays a pivotal role in the inhibition of fibrinolysis. DIC diagnosis criteria or fibrinolysis markers, including d-dimer and fibrin/fibrinogen degradation products, which are commonly tested in patients and easily accessible, can be used to predict the mortality or neurological outcome of PCAS patients with high accuracy. A number of studies have explored therapy for this unique pathophysiology since the first report on "no-reflow phenomenon" was published roughly 50 years ago. However, the optimum therapeutic strategy focusing on the coagulofibrinolytic changes in cardiac arrest or PCAS patients has not yet been established. The elucidation of more precise pathomechanisms of coagulofibrinolytic changes in PCAS may aid in the development of novel therapeutic targets, leading to an improvement in the outcomes of PCAS patients. PMID- 29034233 TI - Role of Cardiolipin in Mitochondrial Signaling Pathways. AB - The phospholipid cardiolipin (CL) is an essential constituent of mitochondrial membranes and plays a role in many mitochondrial processes, including respiration and energy conversion. Pathological changes in CL amount or species composition can have deleterious consequences for mitochondrial function and trigger the production of reactive oxygen species. Signaling networks monitor mitochondrial function and trigger an adequate cellular response. Here, we summarize the role of CL in cellular signaling pathways and focus on tissues with high-energy demand, like the heart. CL itself was recently identified as a precursor for the formation of lipid mediators. We highlight the concept of CL as a signaling platform. CL is exposed to the outer mitochondrial membrane upon mitochondrial stress and CL domains serve as a binding site in many cellular signaling events. During mitophagy, CL interacts with essential players of mitophagy like Beclin 1 and recruits the autophagic machinery by its interaction with LC3. Apoptotic signaling pathways require CL as a binding platform to recruit apoptotic factors such as tBid, Bax, caspase-8. CL required for the activation of the inflammasome and plays a role in inflammatory signaling. As changes in CL species composition has been observed in many diseases, the signaling pathways described here may play a general role in pathology. PMID- 29034238 TI - Exploring the Abnormal Modulation of the Autonomic Systems during Nasal Flow Limitation in Upper Airway Resistance Syndrome by Hilbert-Huang Transform. AB - : Patients with nasal flow limitation and upper airway resistance syndrome (UARS) during sleep can present with low blood pressure and disturbing symptoms associated with hypervagotony. We hypothesized that the dynamic changes of the autonomic system related to inspiratory flow limitation can be quantified by the developed analytic technique applied on beat-to-beat heart rate (RR intervals) and finger photoplethysmography (PPG). METHOD: A breath-by-breath investigation based on the Hilbert-Huang transform was performed to explore autonomic nervous system changes observed during inspiratory flow limitation. Autonomic status was quantified from beat-to-beat heart rate analysis by high frequency (RRHF; 0.15 0.4 Hz), low frequency (RRLF; 0.04-0.15 Hz), and LF/HF ratio of each respiratory cycle. Based on respiratory-related mechanisms contained in the PPG signal, we further quantified the respiratory-related oscillations (PPGres). Based on esophageal pressure and nasal flow measurements, each respiratory cycle was identified and breathing patterns were classified into one of four groups: normal, inspiratory flow limitation cycles without increased effort [FL(-)], minimal inspiratory flow limitation with effort, and inspiratory flow limitation cycles with increased effort [FL(+)]. The resulting quantitative parameters of the identified cycles were calculated. RESULTS: 49 UARS patients (12 males; aged 26.8 +/- 5.8 years) with apnea-hypopnea index (AHI) 3.1 +/- 1.5 per hour and nine aged matched control subjects (3 males; aged 27.8 +/- 4.0 years) with AHI 0.8 +/- 1.1 per hour were retrospectively identified. Compared to the control group, hyperactivation of the parasympathetic system was noted during stage 2 NREM sleep by RRHF (27.8 +/- 18.2 vs 22.5 +/- 11.12, p < 0.05) in 49 UARS patients. Analysis of the different classifications of respiratory cycles indicated that during "high" (increased) respiratory efforts, the RRHF and PPGres were significantly higher compared to "normal cycle" and "FL(-)" groups. The RRLF/RRHF (an index of sympathetic activity) was significantly lower in the "FL(+)" group (1.66 +/- 0.80) than in the "normal cycle" (1.93 +/- 0.97, p < 0.05) and "FL(-)" groups (2.01 +/- 1.01, p < 0.05). CONCLUSION: The proposed algorithm allows quantifying the temporal changes of specific mechanisms of the autonomic system on breath-by breath basis. With no or very limited impact on oxygen saturation, the hyperactivation of parasympathetic system in associated with inspiratory flow limitation or increased respiratory efforts during stage 2 NREM sleep has been presented in this study. PMID- 29034237 TI - Proteomics of Eosinophil Activation. AB - We recently identified and quantified >7,000 proteins in non-activated human peripheral blood eosinophils using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) and described phosphoproteomic changes that accompany acute activation of eosinophils by interleukin-5 (IL5) (1). These data comprise a treasure trove of information about eosinophils. We illustrate the power of label free LC-MS/MS quantification by considering four examples: complexity of eosinophil STATs, contribution of immunoproteasome subunits to eosinophil proteasomes, complement of integrin subunits, and contribution of platelet proteins originating from platelet-eosinophil complexes to the overall proteome. We describe how isobaric labeling enables robust sample-to-sample comparisons and relate the 220 phosphosites that changed significantly upon treatment with IL5 to previous studies of eosinophil activation. Finally, we review previous attempts to leverage the power of mass spectrometry to discern differences between eosinophils of healthy subjects and those with eosinophil-associated conditions and point out features of label-free quantification and isobaric labeling that are important in planning future mass spectrometric studies. PMID- 29034239 TI - Hepatoid Adenocarcinoma of the Stomach: A Challenging Diagnostic and Therapeutic Disease through a Case Report and Review of the Literature. AB - Hepatoid adenocarcinoma of the stomach (HAS) is a rare aggressive tumor with hepatocellular differentiation. HAS often produces alpha fetoprotein (AFP) and metastasizes to the lymph nodes and the liver. Molecular studies revealed Her2 amplification and overexpression, association with p53 mutations, but no association with KRAS mutations. EGFR and BRAF mutations have not yet been evaluated in hepatoid carcinoma of the stomach so far. Hereby, we present a case of a 41-year-old female patient with HAS with high AFP level and liver metastases. Molecular analysis revealed Her2 overexpression by immunohistochemistry (IHC), but no EGFR, KRAS, or BRAF mutations were detected. The patient underwent chemotherapy type DCX (docetaxel, cisplatinum, and capecitabine) every 3 weeks with partial response after two cycles, maintained for eight cycles, and then was on maintenance therapy with trastuzumab for 7 months before relapsing and dying 18 months from the day of diagnosis. Conclusively, HAS may be misdiagnosed as hepatocellular carcinoma; therefore, it should be considered in the differential diagnosis of multiple hepatic nodules with high AFP and no history of hepatitis, liver fibrosis or cirrhosis. PMID- 29034240 TI - Dark Chocolate: Opportunity for an Alliance between Medical Science and the Food Industry? AB - Dark chocolate (DC) was originally introduced in human nutrition as a medicinal product consumable in a liquid form. Century-long efforts of food industry transformed this hardly appealing product into a valuable modern culinary delight with clear predominance of confectionery brands of DC on the market. However, current epidemiological data as well as multiple experimental and clinical observations reveal that DC consumption may have a profound effect on cardiovascular, central nervous systems, hemostasis, and lipid metabolism. However, despite of growing body of modern scientific evidence revealing medicinal properties of cocoa-based products, DC remains more gourmet culinary item than medicinal food product. Even today there are no clear dietary recommendations on consumption of cocoa flavonoids (flavanols) for health purpose. Clinical trials with DC rarely include monitoring of plasma flavanol concentration in volunteers. Moreover, there is no standardized assay or any quantitative requirements for flavanol content in the commercial brands of DC. High flavanol content is often sacrificed during manufacturing for a better taste of DC due to bitterness of cocoa flavonoids. All these problems including subsequently arising ethical issues need to be addressed by joint efforts of food industry and medical science. Moreover, application of microencapsulation technology in DC manufacturing, as well as molecular selection of best flavanol producers may drastically change bioavailability of DC bioactive ingredients and DC production technology. Nevertheless, only strict causative approach, linking possible health effect of DC to its bioactive ingredients considered as nutraceuticals, may change the current landscape in nutritional research related to cocoa-based products and create a trustworthy path for their medicinal use. PMID- 29034242 TI - Commentary: Snap-N-Send: A Valid and Reliable Method for Assessing the Energy Intake of Elite Adolescent Athletes. PMID- 29034241 TI - Bone Mineral Density after Weight Gain in 160 Patients with Anorexia Nervosa. AB - Low bone mineral density (BMD) is a frequent complication in anorexia nervosa (AN). There are controversial points of views regarding the restoration of bone mineralization after recovery in AN. We aimed to assess changes of BMD at 3 years in patients with AN and to explore the relationships between body composition, physical activity, and BMD. Patients with AN were included from 2009 to 2011 in a first visit (T0) with evaluation of weight, height, body mass index (BMI), body composition [fat mass (FM) and fat-free mass], and BMD. Those who had low BMD, either osteoporosis or osteopenia, were admitted in a second visit (T1) to carry out a new bone densitometry examination and body composition; they were also asked for their physical activity. At T0, our study involved 160 patients. Low BMD was observed in 53.6% of them and significant factors associated with demineralization were lower BMIs (16.5 +/- 2.1 vs 17.3 +/- 2.3 kg/m2, p = 0.01) and higher duration of AN (11.4 +/- 10.5 vs 6.4 +/- 6.5 years, p = 0.001). At 3 years follow-up (T1), 42 patients were involved and no significant changes in BMD were observed despite body weight increase (3.8 +/- 6.1 kg). Interestingly, FM gain was a significant factor associated with BMD improvement at follow-up (8.0 +/- 9.1 vs 3.0 +/- 3.5 kg, p = 0.02). Our findings suggest that the restoration of normal bone values is not related to the increase of body weight, at least after 3 years. FM seems to play an important role in the pathophysiological mechanism of osteoporosis and osteopenia in AN. PMID- 29034243 TI - Improving Surgical Outcome Using Diffusion Tensor Imaging Techniques in Deep Brain Stimulation. AB - INTRODUCTION: Recent advances in surgical imaging include the use of diffusion tensor imaging (DTI) in deep brain stimulation (DBS) and provide a detailed view of the white matter tracts and their connections which are not seen with conventional magnetic resonance imaging. Given that the efficacy of DBS depends on the precise and accurate targeting of these circuits, better surgical planning using information obtained from DTI may lead to improved surgical outcome. We aim to review the available literature to evaluate the efficacy of such a strategy. METHODS: A search of PubMed was performed to identify all articles using the search terms "(diffusion tractography OR diffusion tensor imaging OR DTI) AND (deep brain stimulation OR DBS)." Studies were included if DTI was used and clinical outcomes were reported. RESULTS: We identified 35 studies where the use of DTI in DBS was evaluated. The most studied pathology was movement disorders (17 studies), psychiatric disorders (11 studies), and pain (7 studies). The overall responder rates for tremor reduction was 70.0% (SD = 26.1%) in 69 patients, 36.5% (SD = 19.1%) for obsessive-compulsive disorder in 9 patients, 48.3% (SD = 40.0%) for depression in 40 patients, and 49.7% (SD = 35.1%) for chronic pain in 23 patients. DISCUSSION: The studies reviewed show that the use of DTI for surgical planning is feasible, provide additional information over conventional targeting methods, and can improve surgical outcome. Patients in whom the DBS electrodes were within the DTI targets experienced better outcomes than those in whom the electrodes were not. Many current studies are limited by their small sample size or retrospective nature. The use of DTI in DBS planning appears underutilized and further studies are warranted given that surgical outcome can be optimized using this non-invasive technique. PMID- 29034245 TI - Handshakes and Fights: The Regulatory Interplay of RNA-Binding Proteins. AB - What drives the flow of signals controlling the outcome of post-transcriptional regulation of gene expression? This regulatory layer, presiding to processes ranging from splicing to mRNA stability and localization, is a key determinant of protein levels and thus cell phenotypes. RNA-binding proteins (RBPs) form a remarkable army of post-transcriptional regulators, strong of more than 1,500 genes implementing this expression fine-tuning plan and implicated in both cell physiology and pathology. RBPs can bind and control a wide array of RNA targets. This sheer amount of interactions form complex regulatory networks (PTRNs) where the action of individual RBPs cannot be easily untangled from each other. While past studies have mostly focused on the action of individual RBPs on their targets, we are now observing an increasing amount of evidence describing the occurrence of interactions between RBPs, defining how common target RNAs are regulated. This suggests that the flow of signals in PTRNs is driven by the intertwined contribution of multiple RBPs, concurrently acting on each of their targets. Understanding how RBPs cooperate and compete is thus of paramount importance to chart the wiring of PTRNs and their impact on cell phenotypes. Here we review the current knowledge about patterns of RBP interaction and attempt at describing their general principles. We also discuss future directions which should be taken to reach a comprehensive understanding of this fundamental aspect of gene expression regulation. PMID- 29034244 TI - Contemporary Strategies in the Management of Civilian Neck Zone II Vascular Trauma. AB - Neck trauma is the leading cause of death mainly in younger persons posing to surgeons the dilemma whether to proceed with reconstruction of vascular injuries either in the presence of coma or in severe neurological deficit. Vascular injuries in zone II predominate over the other injuries located in zones I/III of the neck. Conventional open repair of carotid injuries with primary closure or interposition grafting is always recommended due to the effective long-term results for penetrating injuries or for patients unfit for endovascular intervention. In cases of blunt trauma, anticoagulation or antiplatelet therapy should be administered first in neurologically stable patients. In case of worsening of the neurological status of the patient despite adequate anticoagulation endovascular means should be considered in cases of appropriate anatomy of the arterial trauma. We provide an update on penetrating/blunt trauma in zone II of the neck, giving emphasis on the anticoagulant and endovascular treatment. PMID- 29034246 TI - Tolvaptan for the Treatment of Enlarged Polycystic Liver Disease. AB - A 44-year-old Japanese woman with autosomal dominant polycystic kidney disease was admitted to our hospital for evaluation of abdominal distension. Her eGFR was 53.7 mL/min/1.73 m2. Total kidney volume was 2,614 mL. Tolvaptan (60 mg/day) was started to treat renal involvement. The patient's abdominal fullness began to improve and liver volume, indicating advanced polycystic liver disease (PLD), decreased from 9,750 mL to 8,345 mL after 17 months of tolvaptan treatment, though there was no significant change in kidney volume. This case indicates that tolvaptan may be a therapeutic option for hepatomegaly in patients with symptomatic PLD. PMID- 29034247 TI - Regular Exposure to Cowbells Affects the Behavioral Reactivity to a Noise Stimulus in Dairy Cows. AB - In alpine regions, cows are often equipped with bells during pasture season to ensure that farmers can locate them. Constant exposure to the chime of a bell may affect cows' acoustic perception in general. The aim of this study is to test whether routine bell exposure affects the reactivity to a noise stimulus and might be associated with hearing impairment in cows. For the assessment, behavioral and cardiac indicators were used as indirect measures of hearing capacity. Cows that were either used to wearing a bell or not were exposed to a playback of low and high amplitude (=varying loudness). In addition, we tested whether wearing earplugs, mimicking hearing impairment, reduced the cows' reactivity toward the playback. On 24 farms, half of them routinely using cowbells, 96 Brown Swiss cows were tested in a 2 * 2 factorial cross-over design (65 or 85 dB, without or with earplugs) in a balanced order. The effects of bell experience, amplitude, and earplugs on the latency to the first behavioral and cardiac response to a 5-s playback were analyzed using linear mixed-effects models, considering dependencies within the data set. Cows reacted faster without earplugs and when they were exposed to 85 dB compared with 65 dB. The proportion of cows leaving the feeding rack after onset of the playback was reduced by bell experience and earplugs and was increased when exposed to 85 dB compared with 65 dB. Exposure without earplugs to 85 dB but not to 65 dB increased heart rate. Heart rate and heart rate variability indicated increased sympathetic activation during the exposure to 85 dB compared with 65 dB. In general, behavioral and cardiac indicators did not indicate severe hearing impairment due to routine bell exposure. The 85-dB stimulus increased arousal and avoidance compared with the 65 dB stimulus, with bell experience and earplugs leading to a general decrease in avoidance of the stimulus. This may reflect an altered acoustic perception of the playback stimulus in dairy cows that are routinely exposed to bells. PMID- 29034248 TI - Misoprostol Inhibits Equine Neutrophil Adhesion, Migration, and Respiratory Burst in an In Vitro Model of Inflammation. AB - In many equine inflammatory disease states, neutrophil activities, such as adhesion, migration, and reactive oxygen species (ROS) production become dysregulated. Dysregulated neutrophil activation causes tissue damage in horses with asthma, colitis, laminitis, and gastric glandular disease. Non-steroidal anti-inflammatory drugs do not adequately inhibit neutrophil inflammatory functions and can lead to dangerous adverse effects. Therefore, novel therapies that target mechanisms of neutrophil-mediated tissue damage are needed. One potential neutrophil-targeting therapeutic is the PGE1 analog, misoprostol. Misoprostol is a gastroprotectant that induces intracellular formation of the secondary messenger molecule cyclic AMP (cAMP), which has been shown to have anti inflammatory effects on neutrophils. Misoprostol is currently used in horses to treat NSAID-induced gastrointestinal injury; however, its effects on equine neutrophils have not been determined. We hypothesized that treatment of equine neutrophils with misoprostol would inhibit equine neutrophil adhesion, migration, and ROS production, in vitro. We tested this hypothesis using isolated equine peripheral blood neutrophils collected from 12 healthy adult teaching/research horses of mixed breed and gender. The effect of misoprostol treatment on adhesion, migration, and respiratory burst of equine neutrophils was evaluated via fluorescence-based adhesion and chemotaxis assays, and luminol-enhanced chemiluminescence, respectively. Neutrophils were pretreated with varying concentrations of misoprostol, vehicle, or appropriate functional inhibitory controls prior to stimulation with LTB4, CXCL8, PAF, lipopolysaccharide (LPS) or immune complex (IC). This study revealed that misoprostol pretreatment significantly inhibited LTB4-induced adhesion, LTB4-, CXCL8-, and PAF-induced chemotaxis, and LPS-, IC-, and PMA-induced ROS production in a concentration dependent manner. This data indicate that misoprostol-targeting of E-prostanoid (EP) receptors potently inhibits equine neutrophil effector functions in vitro. Additional studies are indicated to further elucidate the role of EP receptors in regulating neutrophil function. Overall, our results suggest misoprostol may hold promise as a novel anti-inflammatory therapeutic in the horse. PMID- 29034250 TI - The Modification and Performance of a Large Animal Anesthesia Machine (Tafonius(r)) in Order to Deliver Xenon to a Horse. AB - INTRODUCTION: Xenon, due to its interesting anesthetic properties, could improve the quality of anesthesia protocols in horses despite its high price. This study aimed to modify and test an anesthesia machine capable of delivering xenon to a horse. MATERIALS AND METHODS: An equine anesthesia machine (Tafonius, Vetronic Services Ltd., UK) was modified by including a T-connector in the valve block to introduce xenon, so that the xenon was pushed into the machine cylinder by the expired gases. A xenon analyzer was connected to the expiratory limb of the patient circuit. The operation of the machine was modeled and experimentally tested for denitrogenation, wash-in, and maintenance phases. The system was considered to consist of two compartments, one being the horse's lungs, the other being the machine cylinder and circuit. A 15-year-old, 514-kg, healthy gelding horse was anesthetized for 70 min using acepromazine, romifidine, morphine, diazepam, and ketamine. Anesthesia was maintained with xenon and oxygen, co administered with lidocaine. Ventilation was controlled. Cardiorespiratory variables, expired fraction of xenon (FeXe), blood gases were measured and xenon was detected in plasma. Recovery was unassisted and recorded. RESULTS: FeXe remained around 65%, using a xenon total volume of 250 L. Five additional boli of ketamine were required to maintain anesthesia. PaO2 was 45 +/- 1 mmHg. The recovery was calm. Xenon was detected in blood during the entire administration time. CONCLUSION: This pilot study describes how to deliver xenon to a horse. Although many technical problems were encountered, their correction could guide future endeavors to study the use of xenon in horses. PMID- 29034251 TI - Challenges in Decision Making in Elderly Patients with Gastrointestinal Malignancies. PMID- 29034249 TI - Misoprostol Inhibits Lipopolysaccharide-Induced Pro-inflammatory Cytokine Production by Equine Leukocytes. AB - Pro-inflammatory cytokines including tumor necrosis factor alpha (TNFalpha), IL 1beta, IL-6, and IL-8 are potent immune mediators that exacerbate multiple equine diseases such as sepsis and laminitis. Unfortunately, safe and effective cytokine targeting therapies are lacking in horses; therefore, novel mechanisms of inhibiting cytokine production are critically needed. One potential mechanism for inhibiting cytokine synthesis is elevation of intracellular cyclic AMP (cAMP). In human leukocytes, intracellular cAMP production is induced by activation of E prostanoid (EP) receptors 2 and 4. These receptors can be targeted by the EP2/4 agonist and prostaglandin E1 analog, misoprostol. Misoprostol is currently used as a gastroprotectant in horses but has not been evaluated as a cytokine targeting therapeutic. Thus, we hypothesized that misoprostol treatment would inhibit pro-inflammatory cytokine production by lipopolysaccharide (LPS) stimulated equine leukocytes in an in vitro inflammation model. To test this hypothesis, equine leukocyte-rich plasma (LRP) was collected from 12 healthy adult horses and used to model LPS-mediated inflammatory signaling. LRP was treated with varying concentrations of misoprostol either before (pretreated) or following (posttreated) LPS stimulation. LRP supernatants were assayed for 23 cytokines using an equine-specific multiplex bead immunoassay. Leukocytes were isolated from LRP, and leukocyte mRNA levels of four important cytokines were evaluated via RT-PCR. Statistical differences between treatments were determined using one-way RM ANOVA (Holm-Sidak post hoc testing) or Friedman's RM ANOVA on Ranks (SNK post hoc testing), where appropriate (p < 0.05, n = 3-6 horses). These studies revealed that misoprostol pre- and posttreatment inhibited LPS-induced TNFalpha and IL-6 protein production in equine leukocytes but had no effect on IL 8 protein. Interestingly, misoprostol pretreatment enhanced IL-1beta protein synthesis following 6 h of LPS stimulation, while misoprostol posttreatment inhibited IL-1beta protein production after 24 h of LPS stimulation. At the mRNA level, misoprostol pre- and posttreatment inhibited LPS-induced TNFalpha, IL 1beta, and IL-6 mRNA production but did not affect IL-8 mRNA. These results indicate that misoprostol exerts anti-inflammatory effects on equine leukocytes when applied before or after a pro-inflammatory stimulus. However, the effects we observed were cytokine-specific and sometimes differed at the mRNA and protein levels. Further studies are warranted to establish the inhibitory effects of misoprostol on equine cytokine production in vivo. PMID- 29034252 TI - Age and Outcome in Gastrointestinal Cancers: A Population-Based Evaluation of Oesophageal, Gastric and Colorectal Cancer. AB - BACKGROUND: With demographic changes and partial representativeness of randomized studies the question arises which results are achieved in the treatment of the elderly. The objective was to analyse population-based data on gastrointestinal cancers in terms of age. METHODS: Analyses included data of the Munich Cancer Registry, i.e. 4,014, 10,127 and 42,809 invasive oesophageal, gastric and colorectal cancer patients, respectively, which were diagnosed between 1998 and 2014. Tumour characteristics and outcome were analysed by age groups and therapy. Overall survival was analysed using the Kaplan-Meier method, and relative survival was computed as estimation for cancer-specific survival. Additionally, conditional survival of patients surviving at least 6 or 12 months was analysed by age. RESULTS: 21, 44 and 38% of oesophageal, gastric and colorectal cancer patients, respectively, were aged >75 years. Of these, 15, 46 and 73% were surgically treated with curative intent, respectively, which is significantly less than in younger patients. The total 5-year relative survival was 24, 33 and 66%, respectively. The differences in median survival by age group were diminished by selecting those surviving at least 6 or 12 months and those with curatively intended treatment. CONCLUSION: An adequate patient selection for therapies of these gastrointestinal cancers was demonstrated at large. If the patients' general conditions allowed curatively intended treatment, it was applied and led to similar outcomes irrespective of age. PMID- 29034253 TI - Risk Factors for Adverse Outcome for Elderly Patients undergoing Curative Oncological Resection for Gastrointestinal Malignancies. AB - BACKGROUND: The incidence of gastrointestinal cancer increases with age, with approximately 20% of these cases in people over 80 years of age. Due to pre existing comorbidities, this onco-geriatric population often presents diagnostic and therapeutic challenges. METHODS: A systematic review of articles on PubMed was performed to determine the predictive ability of screening tools and their components regarding the occurrence of adverse outcomes in elderly onco-surgical patients with gastrointestinal malignancies. RESULTS: Surgical procedures in this patient cohort, particularly complex resections, may result in increased morbidity and mortality. The decision to treat an elderly patient with curative intent requires sound clinical judgment based on knowledge, consideration of objective parameters, and experience. These patients could potentially be optimized for surgery with the improvement of nutritional and overall performance status as well as with stabilizing comorbidities. CONCLUSION: Various geriatric assessment and screening tools have been developed to identify risk factors to assist the surgeon and the interdisciplinary team in treatment planning, including the Frailty Assessment Score, Timed Up and Go test, nutritional status, and Activities of Daily Living test. It is important to emphasize that transparent and open communication between the treating surgeon and the patient is crucial in that the patient fully understands the implications of the treatment plan. PMID- 29034254 TI - Attitudes of Surgeons toward Elderly Cancer Patients: A Survey from the SIOG Surgical Task Force. AB - Cancer care in elderly patients is complex. A recent survey showed that among mostly academic surgeons, practice patterns varied in the care of elderly patients. The authors suggested three areas of intervention in improving care of this population: frailty assessment, nutritional assessment, and assessment of quality of life. PMID- 29034257 TI - Challenges in Decision Making in Elderly Patients with Gastrointestinal Malignancies. PMID- 29034256 TI - Integration of Geriatric Assessment in the Care of Patients with Gastrointestinal Malignancies. AB - BACKGROUND: The majority of patients with gastrointestinal (GI) malignancies are older. Recently, it has become evident that elements from a geriatric assessment (GA) are powerful predictors of outcomes such as postoperative morbidity and mortality, length of stay, type of treatment received, and survival across several GI tumor types in older adults. A GA is a systematic evaluation of functional status, comorbidities, polypharmacy, cognition, nutritional status, emotional status, and social support. METHODS: A PubMed search was performed in order to identify clinical studies investigating the association between GA and outcomes in patients with GI malignancies. RESULTS: A total of 31 studies were included in this review. For colorectal cancer, the evidence linking GA variables and frailty to negative outcomes is substantial and consistent. The data regarding other GI malignancies is more limited, but generally shows the same findings. CONCLUSION: Increasing data shows that elements from a GA and frailty are consistently associated with negative short- and long-term treatment outcomes in older patients with GI malignancies. Future studies should investigate the impact of geriatric interventions on outcomes. PMID- 29034255 TI - Perioperative Management of Elderly Patients with Gastrointestinal Malignancies: The Contribution of Anesthesia. AB - INTRODUCTION: Elderly patients suffering from gastrointestinal malignancies are particularly prone to perioperative complications. Elderly patients often present with reduced physiological reserves, and comorbidities can limit treatment options and promote complications. Surgeons and anesthesiologists must be aware of strategies required to deal with this vulnerable subgroup. METHODS: We provide a brief review of current and emerging perioperative strategies for the treatment of elderly patients with gastrointestinal malignancies and frequent comorbidities. RESULTS: Especially in combination with advanced age, the effects of malignancies can be devastating, bringing new health challenges, exacerbating preexisting conditions, and exerting severe psychological strain. An interdisciplinary assessment and process planning provide an ideal setting to identify and prevent potential complications, especially in regards to frailty and cardiovascular risk. In addition, important perioperative considerations are presented, such as malnutrition, fasting, intraoperative neuromonitoring, and hemodynamic control, as well as postoperative early mobilization, pain, and delirium management. CONCLUSION: The decisions and interventions made in the perioperative stage can positively influence many intra- and postoperative factors, significantly improving the chances of successful treatment of elderly cancer patients. Appropriate management can help prevent or mitigate complications, secure a quick recovery, and improve short- and long-term outcomes. PMID- 29034258 TI - Migrants and Refugees in Europe: Challenges, Experiences and Contributions. AB - Due to the current geopolitical situation more refugees from crisis countries were and will be treated in Europe. In 2015 the number of displaced people reached an unprecedented level, with more than one million crossing into Europe. The migration itself can impair both mental and physical health. Therefore, the provision of medical care for refugees and migrants is a novel and major challenge for the health care systems in Europe. In this article we describe our experiences and contribution in providing medical care for refugees who have newly arrived in Stuttgart, Baden-Wuerttemberg, Germany. Furthermore, we report our experiences from a tertiary referral University center in Regensburg, Bavaria, Germany. We focus on challenges in both the outpatient and the inpatient setting, with a special focus on intensive care patients. In addition, we provide an overview about the spectrum of diseases in this specific patient cohort. PMID- 29034259 TI - Problem Adaptation Therapy for Pain (PATH-Pain): A Psychosocial Intervention for Older Adults with Chronic Pain and Negative Emotions in Primary Care. AB - Chronic pain is highly prevalent in older adults, contributes to activity restriction and social isolation, disrupts family and interpersonal relationships, and poses a significant economic burden to society. Negative emotions such as sadness, anxiety, helplessness, and hopelessness are associated with chronic pain and contribute to poor quality of life, impaired interpersonal and social functioning, and increased disability. Psychosocial interventions for older adults with chronic pain have been historically developed for, and are almost exclusively delivered to, cognitively intact patients. Therefore, many older adults with chronic pain and comorbid cognitive deficits have limited treatment options. Our multidisciplinary team developed Problem Adaptation Therapy for Pain in Primary Care (PATH-Pain), a psychosocial intervention for older adults with chronic pain, negative emotions, and a wide range of cognitive functioning, including mild-to-moderate cognitive impairment. In the current article, we describe the principles underlying PATH-Pain, review the steps taken to adapt the original PATH protocol, outline the treatment process, and present a case illustrating its potential value. PMID- 29034260 TI - Clodronate Improves Survival of Transplanted Hoxb8 Myeloid Progenitors with Constitutively Active GMCSFR in Immunocompetent Mice. AB - New methods to produce large numbers of myeloid progenitor cells, precursors to macrophages (MPhis), by maintaining Hoxb8 transcription factor activity1 has reinvigorated interest in MPhi cell therapies. We generated Hoxb8-dependent myeloid progenitors (HDPs) by transducing lineage-negative bone marrow cells with a constitutively expressed Hoxb8 flanked by loxP. HDPs proliferate indefinitely and differentiate into MPhi when Hoxb8 is removed by a tamoxifen-inducible Cre. We genetically modified HDPs with a constitutively active GMCSF receptor and the tamoxifen-induced transcription factor IRF8, which we have termed "HDP-on." The HDP-on proliferates without GMCSF and differentiates into the MPhi upon exposure to tamoxifen and ruxolitinib (GMCSF inhibitor via JAK1/2 blockade). We quantified the biodistribution of HDPs transplanted via intraperitoneal injection into immunodeficient NCG mice with a luciferase reporter; HDPs are detected for 14 days in the peritoneal cavity, liver, spleen, kidney, bone marrow, brain, lung, heart, and blood. In immunocompetent BALB/c mice, HDP-on cells, but not HDPs, are detected 1 day post-transplantation in the peritoneal cavity. Pretreatment of BALB/c mice with liposomal clodronate significantly enhances survival at day 7 for HDPs and HDP-on cells in the peritoneal cavity, spleen, and liver, but cells are undetectable at day 14. Short-term post-transplantation survival of HDPs is significantly improved using HDP-on and liposomal clodronate, opening a path for MPhi-based therapeutics. PMID- 29034261 TI - In Vivo Production of Monoclonal Antibodies by Gene Transfer via Electroporation Protects against Lethal Influenza and Ebola Infections. AB - Monoclonal antibodies (mAbs) have wide clinical utility, but global access is limited by high costs and impracticalities associated with repeated passive administration. Here, we describe an optimized electroporation-based DNA gene transfer platform technology that can be utilized for production of functional mAbs in vivo, with the potential to reduce costs and administration burdens. We demonstrate that multiple mAbs can be simultaneously expressed at protective concentrations for a protracted period of time using DNA doses and electroporation conditions that are feasible clinically. The expressed mAbs could also protect mice against lethal influenza or Ebola virus challenges. Our findings suggest that this DNA gene transfer platform technology could be a game changing advance that expands access to effective mAb therapeutics globally. PMID- 29034262 TI - Detection of Replication Competent Lentivirus Using a qPCR Assay for VSV-G. AB - Lentiviral vectors are a common tool used to introduce new and corrected genes into cell therapy products for treatment of human diseases. Although lentiviral vectors are ideal for delivery and stable integration of genes of interest into the host cell genome, they potentially pose risks to human health, such as integration-mediated transformation and generation of a replication competent lentivirus (RCL) capable of infecting non-target cells. In consideration of the latter risk, all cell-based products modified by lentiviral vectors and intended for patient use must be tested for RCL prior to treatment of the patient. Current Food and Drug Administration (FDA) guidelines recommend use of cell-based assays to this end, which can take up to 6 weeks for results. However, qPCR-based assays are a quick alternative for rapid assessment of RCL in products intended for fresh infusion. We describe here the development and qualification of a qPCR assay based on detection of envelope gene sequences (vesicular stomatitis virus G glycoprotein [VSV-G]) for RCL in accordance with Minimum Information for Publication of Quantitative Real-Time PCR Experiments (MIQE) guidelines. Our results demonstrate the sensitivity, linearity, specificity, and reproducibility of detection of VSV-G sequences, with a low false-positive rate. These procedures are currently being used in our phase 1 clinical investigations. PMID- 29034263 TI - Modeling Causal Relationships among Brain Areas in the Mesocorticolimbic System during Resting-State in Cocaine Users Utilizing a Graph Theoretic Approach. AB - OBJECTIVE: While effective connectivity (EC, causal interaction) between brain areas has been investigated in chronic users of cocaine as they view cocaine pictures cues, no study has examined EC while they take part in a resting-state scan. This resting-state fMRI study aims to investigate the causal interaction among brain areas in the mesocorticolimbic system (MCLS), which is involved in reward and motivation, in cocaine users (vs. controls). METHOD: Twenty cocaine users and 17 healthy controls finished a structural and a resting-state scan. Mean voxel-based time series data were obtained from brain regions of interest (ROIs) from the MCLS, and were input into a Bayesian search algorithm called IMaGES. RESULTS: The causal interaction pattern was different between the two groups. The feed-forward pattern found in cocaine smokers, between 7 ROIs of the MCLS during resting-state [ventral tegmental area (VTA)->hippocampus (HIPP) >ventral striatum (VenStri)->orbital frontal cortex (OFC), medial frontal cortex (MFC), anterior cingulate cortex (ACC), dorsolateral prefrontal cortex (DLPFC)], was absent in controls. That is, the subcortical VenStri area had a causal influence on four cortical brain areas only in cocaine users. CONCLUSIONS: During the resting-state scan, the VTA of cocaine smokers abstinent for at least 72 hours, but not controls, begins causal connections to limbic, midbrain, and frontal regions in the MCLS in a feed-forward manner. Following replication, further studies may assess if changes over time in EC during resting-state predict cocaine treatment efficacy and outcome. PMID- 29034265 TI - Coupled Bimanual Training Using a Non-Powered Device for Individuals with Severe Hemiparesis: A Pilot Study. AB - BACKGROUND: Few options exist for training arm movements in participants with severe post-stroke hemiparesis who have little active range of motion. The purpose of this study was to test the safety and feasibility of training with a non-powered device, the Bimanual Arm Trainer (BAT), to facilitate motor recovery in individuals with severe hemiparesis. The BAT enabled coupled bimanual training of shoulder external rotation, which is reduced in individuals with severe post stroke hemiplegia. The rationale for bimanual training was to harness contralesional cortical activity to drive voluntary movement in the affected arm in patients who could barely perform unimanual movements. METHODS: Nine participants with post-stroke hemiparesis, preserved passive range of motion and Modified Ashworth score of <3 in the shoulder and elbow joints, trained with the device for 45 minutes, twice a week for six weeks, and were assessed pre- and post-training. RESULTS: All participants tolerated the training and no adverse events were reported. Participants showed significant improvement in the upper extremity Fugl-Meyer score post-training with an effect size of 0.89. Changes in the flexor synergy pattern accounted for 64.7% of the improvement. Improvement in active range of motion in the paretic limb occurred for both trained and untrained movements. Some participants showed improvement in the time taken to perform selected tasks on the Wolf Motor Function Test post-training. CONCLUSION: The results demonstrate the safety and feasibility of using the Bimanual Arm Trainer to facilitate motor recovery in individuals with severe hemiparesis. PMID- 29034266 TI - Bladder pain in an LL-37 interstitial cystitis and painful bladder syndrome model. AB - Our goal was to evaluate the pain response in an LL-37 induced murine model for interstitial cystitis/painful bladder syndrome (IC/PBS). In particular, we sought to characterize the dose dependence, time-course, and relationship of LL-37 induced bladder inflammation and pain. The IC/PBS model was induced in C57Bl/6 mice by instilling 50 MUL of LL-37, an immunomodulatory human cathelicidin (anti microbial peptide), in the bladder for 1 hr. Pain responses were measured using von Frey filaments (0.04 gm to 4.0 gm) before and after LL-37 instillation. Inflammation was evaluated using tissue myeloperoxidase (MPO) assay, gross inspection, and microscopic histologic examination. The dose response experiment demonstrated a graded pain response, with higher concentrations of LL-37 challenge yielding higher pain responses across all stimuli tested. Statistical significance was seen when comparing 1.0 gm von Frey filament results at 320 MUM (68 +/- 8% response) vs. 0 MUM (38 +/- 6% response). Interestingly, pain responses did not attenuate across time but increased significantly after 5 (p=0.0012) and 7 days (p=0.0096). Comparison with MPO data suggested that pain responses could be independent of inflammation. We demonstrated within our LL-37 induced IC/PBS model pain occurs in a dose-dependent fashion, pain responses persist beyond the initial point of insult, and our dose response and time course experiments demonstrated that pain was independent of inflammation. PMID- 29034264 TI - Reducing Cardiac Fibrosis: Na/K-ATPase Signaling Complex as a Novel Target. AB - Cardiac fibrosis is a common pathological process in cardiac disease and may lead to heart failure. It can also cause sudden death even in those without cardiac symptoms. Tissue fibrosis can be categorized into two categories: replacement fibrosis (also called reparative fibrosis) and reactive fibrosis. In replacement fibrosis, infiltration of inflammatory cells and accumulation of Extracellular Matrix (ECM) proteins are the initial steps in forming scarlike fibrotic tissue after acute cardiac injury and cardiac cell necrosis. Reactive fibrosis can be formed in response to hormonal change and pressure or volume overload. Experimental studies in animals have identified important pathways such as the Renin-Angiotensin-Aldosterone System (RAAS) and the endothelin pathway that contribute to fibrosis formation. Despite the fact that clinical trials using RAAS inhibitors as therapies for reducing cardiac fibrosis and improving cardiac function have been promising, heart failure is still the leading cause of deaths in the United States. Intensive efforts have been made to find novel targets and to develop new treatments for cardiac fibrosis and heart failure in the past few decades. The Na/K-ATPase, a canonical ion transporter, has been shown to also function as a signal transducer and prolonged activation of Na/K-ATPase signaling has been found to promote the formation of cardiac fibrosis. Novel tools that block the activation of Na/K-ATPase signaling have been developed and have shown promise in reducing cardiac fibrosis. This review will discuss the recent development of novel molecular targets, focusing on the Na/K-ATPase signaling complex as a therapeutic target in treatment of cardiac fibrosis. PMID- 29034267 TI - Spectral CT Reconstruction with Image Sparsity and Spectral Mean. AB - Photon-counting detectors can acquire x-ray intensity data in different energy bins. The signal to noise ratio of resultant raw data in each energy bin is generally low due to the narrow bin width and quantum noise. To address this problem, here we propose an image reconstruction approach for spectral CT to simultaneously reconstructs x-ray attenuation coefficients in all the energy bins. Because the measured spectral data are highly correlated among the x-ray energy bins, the intra-image sparsity and inter-image similarity are important prior acknowledge for image reconstruction. Inspired by this observation, the total variation (TV) and spectral mean (SM) measures are combined to improve the quality of reconstructed images. For this purpose, a linear mapping function is used to minimalize image differences between energy bins. The split Bregman technique is applied to perform image reconstruction. Our numerical and experimental results show that the proposed algorithms outperform competing iterative algorithms in this context. PMID- 29034268 TI - Language Emergence. AB - Language emergence describes moments in historical time when nonlinguistic systems become linguistic. Because language can be invented de novo in the manual modality, this offers insight into the emergence of language in ways that the oral modality cannot. Here we focus on homesign, gestures developed by deaf individuals who cannot acquire spoken language and have not been exposed to sign language. We contrast homesign with (a) gestures that hearing individuals produce when they speak, as these cospeech gestures are a potential source of input to homesigners, and (b) established sign languages, as these codified systems display the linguistic structure that homesign has the potential to assume. We find that the manual modality takes on linguistic properties, even in the hands of a child not exposed to a language model. But it grows into full-blown language only with the support of a community that transmits the system to the next generation. PMID- 29034269 TI - The Role of Botulinum Toxin A in Treatment of Temporomandibular Joint Disorders: A Review. AB - Temporomandibular joint disorders (TMDs) usually present with symptoms and signs such as pain, mandibular movement, dysfunction, or joint sounds. Botulinum toxin type A (BTX-A) is a biologic toxin which inhibits skeletal muscle through hindering the production of acetylcholine in the nerve endings. This toxin is used for the treatment of hyperactivity of lateral pterygoid muscle and TMD symptoms. This comprehensive review aimed to evaluate the effect of BTX-A injections in the lateral pterygoid muscle on treatment of TMDs symptoms. In this study, online databases including Scopus, Medline, Ebsco, Cochrane, EMBASE, and Google scholar were searched for the keywords "pterygoid muscle" and "Onabotulinumtoxin A". Twenty-four articles were eligible to be enrolled in the study. In 4 interventional studies and 20 descriptive studies, BTX-A was used for the treatment of TMDs. The dosage and number of injections were different in each study; however, the injection methods were relatively similar. Regardless of the type, number of injections, and dosage, injection of BTX-A in lateral pterygoid seems effective in reducing the click sound and other TMJ-related muscle disorders such as pain, hyperactivity, and dysfunction. PMID- 29034270 TI - Clinical Evaluation of Effects of Local Application of Aloe vera Gel as an Adjunct to Scaling and Root Planning in Patients with Chronic Periodontitis. AB - STATEMENT OF THE PROBLEM: Aloe vera gel contains various components with antibiotic and anti-inflammatory characteristics, which may have potential advantages to treat periodontal diseases. PURPOSE: The aim of this study was to evaluate the effects of local application of aloe vera gel as an adjunct to scaling and root planning in the treatment of patients with chronic periodontitis. MATERIALS AND METHOD: This single-blind clinical trial, performed in a split mouth design, was conducted on 20 patients with moderate to severe chronic periodontitis. Following a baseline examination at first day which included the assessments of plaque index (PI), gingival index (GI), and probing depth (PD); patients randomly received either SRP in one quadrant (control group), or SRP combined with aloe vera gel in another quadrant (experimental group). All cases were examined again, assessing PI, GI, and PD at 30th and 60th day. RESULTS: There was no significant difference in PI in the three stages between control and experimental groups. In all patients, there was a significant improvement in the three stages in GI and PD for both quadrants treated only with SRP or combination of SRP and aloe vera. However, experimental group presented significantly lower GI (p= 0.0001) and PD (p= 0.009) than the control group at the end of study period. CONCLUSION: This study revealed that local application of aloe vera gel could be considered as an adjunctive treatment with scaling and root planning for chronic periodontitis. PMID- 29034271 TI - Effect of Propolis Extract in Combination with Eugenol-Free Dressing (Coe-PakTM) on Pain and Wound Healing after Crown-Lengthening: A Randomized Clinical Trial. AB - STATEMENT OF THE PROBLEM: Researchers have long been in search of products to enhance healing and patient comfort postoperatively. PURPOSE: This study aimed to assess the efficacy of propolis extract in combination with Coe-PakTM dressing for pain relief and wound healing after crown lengthening surgery. MATERIALS AND METHOD: This randomized clinical trial was performed on 36 patients who were randomly divided into two groups of Coe-PakTM dressing with (trial group) and without (control group) propolis extract. Pain and burning sensation by use of visual analog scale (VAS) and number of analgesics taken were asked from patients. Gingival color and consistency, bleeding on probing (BOP) and presence of infection were studied 7 days after dressing removal. RESULTS: Although a large number of patients in the trial group did not have burning sensation, this difference was not significant between the two groups (p> 0.05). In both groups, the majority of patients experienced moderate and mild pain and there was no pain in the trial group after three days. No significant difference was noted between the two groups in pain score and number of analgesics taken (p> 0.05). The two groups were not significantly different in terms of inflammation and healing process (BOP, gingival consistency and color), after 7 days (p> 0.05). CONCLUSION: The study results showed no difference in use of Coe-PakTM dressing with and without propolis extract in terms of postoperative pain and healing process following the crown lengthening surgery. More studies are required to confirm these results. PMID- 29034272 TI - Influence of Head Position on the CBCT Accuracy in Assessment of the Proximity of the Root Apices to the Inferior Alveolar Canal. AB - STATEMENT OF THE PROBLEM: The most important risk factor for inferior alveolar nerve (IAN) damage is the proximity of the mandibular root apices to the alveolar canal. Failure to position the patient's head at standardized orientation during cone beam computed tomography (CBCT) scans might adversely affect the relative position of the alveolar canal and mandibular root apices with subsequent treatment failure. PURPOSE: The purpose of the present study was to investigate the influence of the orientations of the skull during the scanning procedure on the accuracy of CBCT images in determining the positional relationship of the mandibular tooth apices to the alveolar canal. MATERIALS AND METHOD: CBCT scans of 7 human dry skulls were obtained by using NewTom VGi CBCT in standard, tilt, flexion, extension and rotation positions of the head. The shortest radiographic distance between the mandibular tooth apices and the IAN canal of 20 points were measured on cross sectional images of CBCT in all position scans. A sample t-test was used to compare the measurements at different head position with the standard position values. RESULTS: Significant differences were found in the measurements of normal and tilt orientations. However, there was no statistically significant difference between the measurements in standard position and other deviated positions. The mean errors in all head positions were less than 0.5mm. CONCLUSION: Alteration of patient head positioning during CBCT scanning does not affect the relative position of the IAN and the apices of posterior teeth. PMID- 29034273 TI - Comparison of the Effects of Transcutaneous Electrical Nerve Stimulation and Low Level Laser Therapy on Drug-Resistant Temporomandibular Disorders. AB - STATEMENT OF THE PROBLEM: Temporomandibular disorder (TMD) is a clinical term used for clinical signs and symptoms that affect the temporomandibular joints, masticatory muscles, and associated structures. Surgical and non-surgical treatments can be used for management of TMD. Non-surgical route is the main part of the treatment, since clinicians prefer non-aggressive treatment for TMD such as pharmacological and physical therapy. Low-level laser therapy (LLLT) and transcutaneous electrical nerve stimulation (TENS) are the main procedures in physical therapy. PURPOSE: The aim of this study was to evaluate the effectiveness of TENS and LLLT in treatment of TMD patients who did not respond to pharmacological therapy. MATERIALS AND METHOD: This clinical trial was performed on 45 patients who randomly received either TENS or LLLT for 8 sessions. LLLT was applied with diode laser (Ga-Al-As, 980nm, dose 5j/cm2) and TENS by using two carbon electrodes with 75 Hz frequency (0.75 msec pulse width). Helkimo index and visual analogue scale (VAS) were measured during the treatment period and throughout the follow-up sessions. RESULTS: Significant reduction in the VAS and Helkimo index was observed in both TENS and LLLT group. There was no significant difference between the two methods during the treatment; however, TENS was more effective in pain reduction in follow-ups. CONCLUSION: This study justified the use of TENS therapy as well as LLLT in drug-resistant TMD. Both were useful in relieving the pain and muscles tenderness, although, TENS was more effective than LLLT. PMID- 29034274 TI - Prevalence and Characteristics of Developmental Dental Anomalies in Iranian Orofacial Cleft Patients. AB - STATEMENT OF THE PROBLEM: Individuals with oral clefts exhibit considerably more dental anomalies than individuals without clefts. These problems could initially be among the symptoms of their disease and/or they may be the side effect of their treatments. Pushback palatoplasty could cause some interference during the development of teeth and result in tooth defects. PURPOSE: The study was performed to assess the prevalence and characteristics of developmental dental anomalies in orofacial cleft patients who attended Shiraz Orthodontics Research Center-Cleft Lip and Palate Clinic. We managed to compare dental anomaly traits based on gender and cleft side. MATERIALS AND METHOD: Eighty out of 121 cleft patients were included in this cross-sectional study. All the patients used pushback palatoplasty in their palate closure surgeries. Intraoral photographs, panoramic and intraoral radiographs, cone-beam computed tomography (CBCT) and dental and medical histories were examined and recorded by two observers. Data were analyzed using SPSS PC version 20.0. The differences in the side of cleft and dental anomalies were compared using the Mann-Whitney test. RESULTS: The mean age of patients was 14.27 years (SD=5.06). The most frequent cleft type was unilateral cleft lip and palate (50%) followed by bilateral cleft lip and palate (43.75%), cleft palate (2.5%) and cleft lip (1.25%). Male predominance (70%) was observed. 92.5 percent had at least one developmental dental anomaly. The most prevalent anomalies were hypodontia (71.25%) followed by microdontia (30%), root dilacerations (21.25%) and supernumerary teeth (15%). CONCLUSION: The most prevalent cleft types were unilateral and bilateral cleft lip and palate with male and left side predominance. Hypodontia, microdontia, dilacerations and supernumerary teeth were the most prevalent developmental dental anomalies among Iranian southwestern cleft patients. The surgical technique used to repair their cleft palate may have played a role in developmental dental defects. PMID- 29034275 TI - Diagnosis of Approximal Caries after Delayed Scanning of Photostimulable Phosphor Plates. AB - STATEMENT OF THE PROBLEM: Considering the high diagnostic accuracy and wide dynamic range of photostimulable phosphor plates (PSPs), they can be a good alternative for radiographic films. PURPOSE: This study was aimed to assess the effects of delay in scanning PSPs on the diagnostic accuracy of detection of approximal caries. MATERIALS AND METHOD: Radiographs from fifty-two extracted molar and premolar teeth were radiographed using DIGORA PSP (Soredex Corporation, Helsinki, Finland). The teeth were either intact or with non-cavitated approximal caries. The plates were scanned immediately (time zero) and at 10 min, 30 min, 60 min and 120 min after exposure. Sixty-five images were obtained and evaluated for presence or absence of approximal caries by two oral and maxillofacial radiologists and 2 restorative specialists. The diagnostic accuracy of approximal caries detection was measured using a 5-point rating scale. Definite presence of caries was confirmed using a stereomicroscope. Analysis of caries detection data was performed by calculating sensitivity and specificity using repeated measures with ANOVA. RESULTS: Significant differences were found in complete negative predictive value, absolute negative predictive value and complete dentine sensitivity value between different scan times (p< 0.05). These values were significantly different at 10 min, 60 min and 120 min (p< 0.05). However, immediate scan and 30 min delay were not significantly different (p> 0.05). The accuracy of approximal caries detection at 120 min was less than at 60 min and at 60 min was less than at 30 min. CONCLUSION: In order to detect approximal caries more accurately, DIGORA PSPs should be scanned within 30 min after exposure. PMID- 29034276 TI - Evaluation of the Ki-67 and MCM3 Expression in Cytologic Smear of Oral Squamous Cell Carcinoma. AB - STATEMENT OF THE PROBLEM: Squamous cell carcinoma (SCC) is the most frequent oral cancer whose 5-year survival rate is 80% for early-detected lesions and nearly 30 50% for advanced lesions. Early detection of oral cancers and precancerous lesions can improve the patient's survival and decrease the morbidity. PURPOSE: This study aimed to evaluate and compare the Ki-67 and MCM3 expression in cytologic smear of oral SCC (OSCC). MATERIALS AND METHOD: We examined 48 oral brush biopsies including 28 OSCC and 20 healthy non-smoking samples. Immunocytochemistry staining was performed for Ki-67 and MCM3 by using an EnVision-labeled peroxidase system, and labeling index (LI) was calculated. RESULTS: Out of 28 OSCC cases, 27(96.4%) cases contained MCM3 positive cells and 22(78%) cases contained Ki-67 positive cells. All normal mucosa were Ki-67 and MCM3 negative. MCM3 and Ki-67 LI were significantly higher in OSCC than normal mucosa (p< 0.001). MCM3 LI was significantly higher than Ki-67 LI in OSCC group (p< 0.001). CONCLUSION: Immunocytologic evaluation of Ki-67 and MCM3 can be used for early detection of OSCC. Furthermore, MCM3 may be a more sensitive cytologic biomarker than Ki-67 in SCC patients. PMID- 29034277 TI - Knowledge and Attitudes of Elementary Schoolteachers on Dental Trauma and its Management in Yazd, Iran. AB - STATEMENT OF THE PROBLEM: School is one of the places with the greatest prevalence of occurrence of traumatic dental injuries. PURPOSE: The aim of this study was to assess the knowledge levels and attitudes of elementary school teachers towards dental trauma and its management. MATERIALS AND METHOD: In this cross-sectional study, 281 elementary school teachers were selected through cluster sampling to answer the prepared questionnaire. The data obtained from the questionnaires were analyzed in SPSS software by using ANOVA test and t-test. p Value<0.05 was considered to be significant. RESULTS: The total knowledge and attitude were low and normal, respectively. No previous exposure to or close observation of a dental trauma was reported by 61.2% of teachers; while, 12.5% were trained on dental traumas first aid management. There was statistically significant relationship between the teacher's knowledge and previous first aids training. CONCLUSION: The knowledge of schoolteachers on emergency management of dental trauma is poor. Therefore, it seems to be helpful to consider the management of dental injuries especially avulsed teeth as a part of teachers' education. PMID- 29034278 TI - Cytotoxic Effect of Thiabendazole on Hn5 Head and Neck Squamous Cell Carcinoma Cell Line. AB - STATEMENT OF THE PROBLEM: Evidence shows thiabendazole has the potential to inhibit angiogenesis in melanoma and fibrosarcoma; however, its effect on oral squamous cell carcinoma has not been previously studied. PURPOSE: This study sought to assess the cytotoxic effects of thiabendazole on HN5 head and neck squamous carcinoma cell line. MATERIALS AND METHOD: HN5 cell lines were exposed to different concentrations of thiabendazole (prepared from 99% pure powder) for 24, 48 and 72 hours. Cell viability was assessed by the methyl thiazol tetrazolium assay, and IC50 of thiabendazole was calculated. Cells were also exposed to different concentrations of thiabendazole for 48 hours to determine its effect on expression and transcription of vascular endothelial growth factor gene. Expression of vascular endothelial growth factor mRNA was assessed by real time polymerase chain reaction. The vascular endothelial growth factor release was assessed by the enzyme-linked immunosorbent assay test. RESULTS: In all concentrations of thiabendazole except for 200 and 550MUM, cell viability was significantly different at different time points (p< 0.05). At 48 and 72 hours, cell viability at all concentrations of thiabendazole (100-650MUM) significantly decreased compared to the control group (zero concentration). In addition, cell viability significantly decreased with an increase in thiabendazole concentration. At 48 hours, expression of vascular endothelial growth factor mRNA was significantly lower in presence of 500MUM thiabendazole compared to the control group (p< 0.001) and release of vascular endothelial growth factor was inhibited in a dose-dependent manner. CONCLUSION: Thiabendazole inhibited the proliferation of HN5 cells in a dose-dependent and time-dependent manner. It also inhibited the expression of vascular endothelial growth factor gene. PMID- 29034279 TI - Rare and Extensive Malignant Melanoma of the Oral Cavity: Report of Two Cases. AB - Primary oral melanomas are uncommon malignant neoplasm of melanocytes origin. The most common site of oral melanoma is maxillary gingiva and hard palate. Oral mucosal melanoma exhibit a pathobiological behavior and clinical features different from cutaneous melanomas. Oral melanomas are often clinically silent which may consequently result in delayed diagnosis; thus, making the prognosis extremely poor. This case report presents clinical, histopathological and immunohistochemical features of two cases of advanced oral melanoma, one pigmented or melanotic melanoma in a 46-year-old female and another amelanotic melanoma in a 59-year-old male patient, with chief complaint of swelling in oral mucosa. Most oral melanomas are usually asymptomatic lesions with quick growing. Thus, the most cases are detected in late stage of diagnosis. Early diagnosis with careful examination by dentists, and early biopsy of pigmented and suspicious non-pigmented lesions would have an imperative role in more survival rate and better prognosis. PMID- 29034280 TI - Ameloblastic Fibro-Odontoma in a 7-Month-Old Infant: A Case Report. AB - Ameloblastic fibro-odontoma is a relatively rare, benign odontogenic tumor that usually occurs in children and adolescents with unerupted teeth. This article reports an ameloblastic fibro-odontoma in the anterior mandible as a "bump on her gum" in a 7-month-old girl. This is the first case under 9 months old reported to date. Radiographic and histologic findings as well as the treatment are discussed. PMID- 29034281 TI - Systematic review of the safety and efficacy of contrast injection via venous catheters for contrast-enhanced computed tomography. AB - OBJECTIVE: To examine the safety and efficacy of contrast injection through a central venous catheter (CVC) for contrast-enhanced computed tomography (CECT). METHODS: A systematic literature search was performed using PubMed. Studies were deemed eligible if they reported on the use of CVCs for contrast administration. Selected articles were assessed for their relevance and risk of bias. Articles with low relevance and high risk of bias or both were excluded. Data from included articles was extracted. RESULTS: Seven studies reported on the use of CVCs for contrast administration. Catheter rupture did not occur in any study. The incidence of dislocation ranged from 2.2-15.4%. Quality of scans was described in three studies, with less contrast enhancement of pulmonary arteries and the thoracic aorta in two studies, and average or above average quality in one study. Four other studies used higher flowrates, but did not report quality of scans. CONCLUSION: Contrast injection via CVCs can be performed safely for CECT when using a strict protocol. Quality of scans depended on multiple factors like flow rate, indication of the scan, and cardiac output of the patient. In each patient, an individual evaluation whether to use the CVC as access for contrast media should be made, while bolus tracking may be mandatory in most cases. PMID- 29034282 TI - Differentiation of prostate cancer lesions in the Transition Zone by diffusion weighted MRI. AB - OBJECTIVE: To differentiate prostate cancer lesions in transition zone by diffusion-weighted-MRI (DW-MRI). METHODS: Data from a total of 63 patients who underwent preoperative DWI (b of 0-1000 s/mm2) were prospectively collected and processed by a monoexponential (DWI) model and compared with a biexponential (IVIM) model for quantitation of apparent diffusion coefficients (ADCs), perfusion fraction f, diffusivity D and pseudo-diffusivity D*. Histogram analyses were performed by outlining entire-tumor regions of interest (ROIs). These parameters (separately and combined in a logistic regression model) were used to differentiate lesions depending on histopathological analysis of Magnetic Resonance/transrectal Ultrasound (MR/TRUS) fusion-guided biopsy. The diagnostic ability of differentiate the PCa from BHP in TZ was analyzed by ROC regression. Histogram analysis of quantitative parameters and Gleason score were assessed with Spearman correlation. RESULTS: Thirty (30 foci) cases of PCa in PZ and 33 (36 foci) cases of BPH were confirmed by pathology. Mean ADC, median ADC, 10th percentile ADC, 90th percentile ADC, kurtosis and skewness of ADC and mean D values, median D and 90th percentile D differed significantly between PCa and BHP in TZ. The highest classification accuracy was achieved by the mean ADC (0.841) and mean D (0.809). A logistic regression model based on mean ADC and mean D led to an AUC of 0.873, however, the difference is not significant. There were 7 Gleason 6 areas, 9 Gleason 7 areas, 8 Gleason 8 areas, 5 Gleason 9 areas and 2 Gleason 10 areas detected from the 31 prostate cancer areas, the mean Gleason value was(7.5 +/- 1.2). The mean ADC and mean D had correlation with Gleason score(r = -0.522 and r = -0.407 respectively, P < 0.05). CONCLUSION: The diagnosis efficiency of IVIM parameters was not superior to ADC in the diagnosis of PCa in TZ. Moreover, the combination of mean ADC and mean D did not perform better than the parameters alone significantly; It is feasible to stratify the pathological grade of prostate cancer by mean ADC. PMID- 29034283 TI - Endovenous laser ablation of spermatic vein for the treatment of varicocele. AB - INTRODUCTION: Varicocele is a relatively complex pathology of the scrotum veins', known to be one of the easiest to treat. Modern treatment involves both surgical (open, laparoscopic and microsurgery) and interventional approach (either with coils and/or sclerosant injection). Our aim is to demonstrate the feasibility and the reliability of endovenous laser ablation (EVLA) of the spermatic vein for the treatment of varicocele. MATERIALS AND METHODS: We consecutively and prospectively treated 11 patients (age range 24-45 years old, mean 31y) with left varicocele, phlebografically classified as Bahren type I and with indication for percutaneous treatment. Clinical success was evaluated by color doppler ultrasound (CDUS) one week, one months and three months after the procedures. We also evaluated the pain feeling for 48 h after the procedure on the basis of the visual analogue score (VAS) obtained through telephonic interview. RESULTS: Technical success was achieved in all cases. In all cases varicocele disappeared at CDUS at 1 and three months with reflux abolition. Two cases of small vein laceration were noted without sequelae, no other complication has been described. All patients reported improvements either regarding symptoms and/or spermiographic parameters. CONCLUSIONS: In our experience, EVLA of spermatic vein is a feasible and safe treatment in patients with Bahren type I varicocele. The key advantage of this technique is the adoption of a standardized protocol, which remains one of the main problems in gaining scientific evidence in case of coil or sclerosant embolisation (type and number of coils, amount of sclerosant agent etc). PMID- 29034284 TI - Data from roadside screening for psychoactive substances, alcohol and illicit drugs, among Spanish drivers in 2015. AB - The data presented in this article are related to the paper "Prevalence of psychoactive substances, alcohol and illicit drugs, in Spanish drivers: A roadside study in 2015". (https://doi.org/10.1016/j.forsciint.2017.07.005) Domingo-(Salvany et al., 2017) [1]. In that paper it was not possible to directly compare 2015 results with previous editions for various reasons, one of which was the lack of a similar weighting procedure. The present paper provides 2015 figures of roadside screening tests which are weighted for traffic flow intensity and therefore allow direct comparisons with the screening tests conducted among Spanish drivers in 2008 and 2013. PMID- 29034285 TI - Data on chow, liver tissue and mitochondrial fatty acid compositions as well as mitochondrial proteome changes after feeding mice a western diet for 6-24 weeks. AB - The data presented in this article describe the fatty acid composition of chow, liver tissue and isolated liver mitochondria from mice fed for 6-24 weeks with a high caloric western diet (WD) in comparison to control diet (normal diet, ND). The fatty acid composition was measured via gas chromatography flame ionization detection (GC-FID). Moreover, WD-induced mitochondrial protein changes are presented in this work and were analyzed by mass spectrometry (LC-MS/MS). For further interpretation and discussion of the presented data please refer to the research article entitled "Mitochondrial adaptation in steatotic mice" (Einer et al., 2017) [1]. PMID- 29034286 TI - Data of indirect immunofluorescence labeling of the mouse brain sections with sera from SLE and MS patients. AB - The data presented in this article are related to the research article entitled "Behcet Disease serum is immunoreactive to neurofilament medium which share common epitopes to bacterial HSP-65, a putative trigger" (Lule et a. 2017) [1]. The immunoreactivity to self-antigens is well characterized for systemic lupus erythematosus (SLE) and multiple sclerosis (MS) (Magro Checa et al., 2013) [2]. Indirect immunofluorescence labeling of the mouse tissue sections with patient sera has recently been popular to discover novel epitopes and gain mechanistic insight to diseases with dysregulated immunity (Lennon et al., 2004) [3]. The present article demonstrates widespread labeling of cell nuclei with SLE patient sera and sporadic filamentous labeling along the axons with MS patient sera on mouse brain sections. The filamentous immunolabeling was sometimes associated with cytoplasmic staining of cells, which sent processes along the axon bundles, suggesting that they were oligodendrocytes. Since the mouse brain tissue has little autofluorescence and limited connective tissue causing non-specific immunolabeling, it appears superior to peripheral tissues for searching serum immunoreactivity. PMID- 29034287 TI - Numerical data concerning wind farm layout optimization using differential evolution algorithm at different wind speeds. AB - In this work, the numerical data related to wind turbine micrositing problem is presented. The data is acquired using the differential evolution algorithm (DEA) at different wind speeds. The data obtained through DEA include total dissipated power, cost per installation of unit turbine, and the efficiency of algorithm after installation of any particular number turbines; and are depicted versus number of turbines. The data provided in this paper can be used directly without having to spend weeks of computational time to simulate the results; and can readily be used for comparison with other existing (Massan et al. [1] and Rajper et al. [2], etc.) and forthcoming algorithms in future. PMID- 29034288 TI - The TNO Multiband Image Data Collection. AB - Despite of the ongoing interest in the fusion of multi-band images for surveillance applications and a steady stream of publications in this area, there is only a very small number of static registered multi-band test images (and a total lack of dynamic image sequences) publicly available for the development and evaluation of image fusion algorithms. To fill this gap, the TNO Multiband Image Collection provides intensified visual (390-700 nm), near-infrared (700-1000 nm), and longwave infrared (8-12 um) nighttime imagery of different military and surveillance scenarios, showing different objects and targets (e.g., people, vehicles) in a range of different (e.g., rural, urban) backgrounds. The dataset will be useful for the development of static and dynamic image fusion algorithms, color fusion algorithms, multispectral target detection and recognition algorithms, and dim target detection algorithms. PMID- 29034289 TI - Optical and electrical properties of the nanodisk-shaped SnS layers grown by sputtering. AB - In this data article, we presented the structural, optical, and electrical data of the nanodisk-shaped SnS layers. A facile formation of orthorhombic SnS derived from SnS2 particles was discussed in our previous study (Patel et al., 2017) [1]. The data includes the standard XRD patterns supercell structure of the Orthorhombic SnS material, the photograph of prepared samples, thickness dependent absorbance spectra, and temperature dependent carrier concentration and its mobility estimated from the hall measurement of SnS samples. PMID- 29034291 TI - Microbial biodiversity of Tang and Pirgal mud volcanoes and evaluation of bio emulsifier and bio-demulsifier activities of Capnophile bacteria. AB - The data presented in this article is related to the Master thesis; entitled "Survey Aerobic Microbial Diversity Mud Volcanoes in Chabahar and Khash Ports in Southern Iran" by the first author of this article, year 2011, Islamic Azad University, Iran (reference number (Parsia, 2011) [1] of this article). This article shows microbial biodiversity and evaluates bio-emulsifier and bio demulsifier abilities of capnophile isolates, in order to introduce a superior isolate for the Microbial Enhanced Oil Recovery (MEOR) process in the petrochemical industry. PMID- 29034290 TI - Data on the specificity of an antibody to Drosophila vesicular acetylcholine transporter. AB - The role of the vesicular acetylcholine transporter (VAChT) in the regulation of cholinergic neurotransmission has not been fully elucidated. Here we sought to develop a tool for studying vesicular acetylcholine transporter function, and we present data on the validation of our new anti-VAChT antibody. We show that the immunoreactivity of the antibody is not due to an artifact of secondary antibody staining, and we present two additional validation data. First, the peptide epitope used to generate the antibody is able to block the binding of the anti VAChT antibody in vivo. Further, RNA interference (RNAi) -mediated knockdown of VAChT function in cholinergic neurons drastically reduces anti-VAChT staining in those constructs. Additional evidence for the antibody functionality is presented in our research article on the subject (Boppana et al., 2017) [1]. PMID- 29034292 TI - Salivary lipocalin family proteins from Panstrongylus chinai, a vector of Chagas disease. AB - The dataset in this report is related to the research article with the title: "Salivary gland transcripts of the kissing bug, Panstrongylus chinai, a vector of Chagas disease" (Kato et al., 2017) [1]. Lipocalin family proteins were identified as the dominant component in P. chinai saliva, and phylogenetic analysis of the salivary lipocalins resulted in the formation of five major clades. For further characterization, each clade of P. chinai lipocalin was s alignment and phylogenetic analyses together with homologous triatomine lipocalins; pallidipin 2, an inhibitor of collagen-induced platelet aggregation identified from saliva of Triatoma pallidipennis (clade I), pallidipin-like salivary lipocalin from Triatoma dimidiata (clade II), salivary lipocalin from T. dimidiata (clade III), triatin-like salivary lipocalin identified in the saliva of T. dimidiata (clade IV), and lipocalin-like TiLipo37 from Triatoma infestans (clade V). PMID- 29034293 TI - Comprehensive data on a 2D-QSAR model for Heme Oxygenase isoform 1 inhibitors. AB - The data have been obtained from the Heme Oxygenase Database (HemeOxDB) and refined according to the 2D-QSAR requirements. These data provide information about a set of more than 380 Heme Oxygenase-1 (HO-1) inhibitors. The development of the 2D-QSAR model has been undertaken with the use of CORAL software using SMILES, molecular graphs and hybrid descriptors (SMILES and graph together). The 2D-QSAR model regressions for HO-1 half maximal inhibitory concentration (IC50) expressed as pIC50 (pIC50=-LogIC50) are here included. The 2D-QSAR model was also employed to predict the HO-1 pIC50values of the FDA approved drugs that are herewith reported. PMID- 29034294 TI - Dataset on preparation of the phosphorylated counterparts of a Momordica charantia protein for studying antifungal activities against susceptible dose dependent C. albicans to antimycotics. AB - The data presented here are related to a research article entitled "Development of a phosphorylated Momordica charantia protein system for inhibiting susceptible dose-dependent C. albicans to available antimycotics: An allosteric regulation of protein" (Qiao et al., 2017) [1]. The data set includes three portions: (1) a relationship between reaction velocities of protein phosphorylation as a function of the substrate concentrations, determined in enzymatic reactions in aid of protein kinases; (2) a result of antifungal susceptibility testing of C. albicans after it is selected in antimycotics; and (3) a comparison of protein expression in the susceptible dose-dependent fungus relative to the wild C. albicans. In the first portion, the relationship of reaction velocities and substrate concentrations is expressed as an output from the inverse variation model. All data and analyses are made publicly available and citied in the research article using a style for the Data in Brief. PMID- 29034297 TI - Microcystic adnexal carcinoma mimicking basal cell carcinoma. PMID- 29034296 TI - Diagnosis of asthma in symptomatic children based on measures of lung function: an analysis of data from a population-based birth cohort study. AB - BACKGROUND: Concerns have been expressed about asthma overdiagnosis. The UK National Institute of Health and Care Excellence (NICE) proposed a new diagnostic algorithm applying four lung function measures sequentially (ratio of forced expiratory volume in 1 s [FEV1] to forced vital capacity [FVC] <70%, bronchodilator reversibility >=12%, fractional exhaled nitric oxide [FeNO] >=35 parts per billion, and peak expiratory flow variability >20%). We aimed to assess the diagnostic value of three of the tests individually, and then test the proposed algorithm in symptomatic children. METHODS: We used follow-up data at age 13-16 years from the Manchester Asthma and Allergy Study, a prospective, population-based, birth cohort study. We initially present results for the whole population, then by subgroup of disease. To simulate the situation in primary care, we included participants reporting symptoms of wheeze, cough, or breathlessness in the previous 12 months and who were not on regular inhaled corticosteroids. We used an epidemiological definition of current asthma, defined as all three of physician-diagnosed asthma, current wheeze, and current use of asthma treatment, reported by parents in a validated questionnaire. We assigned children with negative answers to all three questions as non-asthmatic controls. We also measured spirometry, bronchodilator reversibility, and FeNO at follow-up; data for peak expiratory flow variability were not available. We calculated the proportion of participants with a current positive lung function test at each step of the algorithm, and recorded the number of participants that met our definition of asthma. FINDINGS: Of 1184 children born into the cohort, 772 attended follow-up at age 13-16 years between July 22, 2011, and Nov 11, 2014. Among 630 children who completed spirometry, FEV1:FVC was less than 70% in ten (2%) children, of whom only two (20%) had current asthma. Bronchodilator reversibility was positive in 54 (9%) of 624 children, of whom only 12 (22%) had current asthma. FeNO was 35 or more parts per billion in 115 (24%) of 485 children, of whom 29 (25%) had current asthma. Only four of 56 children with current asthma had positive results for all three tests (spirometry, bronchodilator reversibility, and FeNO). Conversely, 24 (43%) of the 56 children with current asthma were negative on all three tests. FEV1:fvc (p=0.0075) and FeNO (p<0.0001), but not bronchodilator reversibility (p=0.97), were independently associated with asthma in multivariable logistic regression models. Among children who reported recent symptoms, the diagnostic accuracy of the algorithm was poor. INTERPRETATION: Our findings challenge the proposed cutoff values for spirometry, the order in which the lung function tests are done, and the position of bronchodilator reversibility within the algorithm sequence. Until better evidence is available, the proposed NICE algorithm on asthma diagnosis should not be implemented in children. FUNDING: UK Medical Research Council. PMID- 29034295 TI - Data demonstrating the role of peroxiredoxin 2 as important anti-oxidant system in lung homeostasis. AB - The data presented in this article are related to the research paper entitled "peroxiredoxin-2 plays a pivotal role as multimodal cytoprotector in the early phase of pulmonary hypertension" (Federti et al., 2017) [1]. Data show that the absence of peroxiredoxin-2 (Prx2) is associated with increased lung oxidation and pulmonary vascular endothelial dysfunction. Prx2-/- mice displayed activation of the redox-sensitive transcriptional factors, NF-kB and Nrf2, and increased expression of cytoprotective system such as heme-oxygenase-1 (HO-1). We also noted increased expression of both markers of vascular activation and extracellular matrix remodeling. The administration of the recombinant fusion protein PEP Prx2 reduced the activation of NF-kB and Nrf2 and was paralleled by a decrease in HO-1 and in vascular endothelial abnormal activation. Prolonged hypoxia was used to trigger pulmonary artery hypertension (PAH). Prx2-/- precociously developed PAH compared to wildtype animals. PMID- 29034298 TI - Generalized pustular psoriasis treated with apremilast in a patient with multiple medical comorbidities. PMID- 29034299 TI - A case of Merkel cell carcinoma development under treatment with a Janus kinase inhibitor. PMID- 29034300 TI - Generating method-specific Reference Ranges - A harmonious outcome? AB - OBJECTIVES: When laboratory Reference Ranges (RR) do not reflect analytical methodology, result interpretation can cause misclassification of patients and inappropriate management. This can be mitigated by determining and implementing method-specific RRs, which was the main objective of this study. DESIGN AND METHODS: Serum was obtained from healthy volunteers (Male + Female, n > 120) attending hospital health-check sessions during June and July 2011. Pseudo anonymised aliquots were stored (at - 70 degrees C) prior t degrees analysis on Abbott ARCHITECT c16000 chemistry and i2000SR immunoassay analysers. Data were stratified by gender where appropriate. Outliers were excluded statistically (Tukey method) to generate non-parametric RRs (2.5th + 97.5th percentiles). RRs were compared to those quoted by Abbott and UK Pathology Harmony (PH) where possible. For 7 selected tests, RRs were verified using a data mining approach. RESULTS: For chemistry tests (n = 23), Upper or Lower Reference Limits (LRL or URL) were > 20% different from Abbott ranges in 25% of tests (11% from PH ranges) but in 38% for immunoassay tests (n = 13). RRs (mmol/L) for sodium (138-144), potassium (3.8-4.9) and chloride (102-110) were considerably narrower than PH ranges (133-146, 3.5-5.0 and 95-108, respectively). The gender difference for ferritin (M: 29-441, F: 8-193 ng/mL) was more pronounced than reported by Abbott (M: 22-275, F: 5-204 ng/mL). Verification studies showed good agreement for chemistry tests (mean [SD] difference = 0.4% [1.2%]) but less so for immunoassay tests (27% [29%]), particularly for TSH (LRL). CONCLUSION: Where resource permits, we advocate using method-specific RRs in preference to other sources, particularly where method bias and lack of standardisation limits RR transferability and harmonisation. PMID- 29034301 TI - Effects of one directional pneumatic tube system on routine hematology and chemistry parameters; A validation study at a tertiary care hospital. AB - BACKGROUND: The validation of sample stability through pneumatic tube system (PTS) is essential. The objective of this study was to evaluate the effects of PTS transportation on laboratory results. METHODS: Paired EDTA and SST blood samples were collected from 56 randomly selected patients. Laboratory parameters were compared between PTS group and hand-delivered group. RESULTS: No statistical differences were observed for complete blood counts, white blood cell differential parameters, erythrocyte sedimentation rate and most chemistry parameters between PTS and hand-delivered transport procedures. Mean platelet volume results obtained from samples transported through PTS were lower than that obtained from samples transported through hand-delivered method (P = 0.001). The results of aspartate aminotransferase (P = 0.000), lactate dehydrogenase (P = 0.000), and hemolysis index (P = 0.000) from PTS group were higher than that from hand-delivered group. CONCLUSIONS: All laboratories should validate the stability of the results from samples according to transportation method. PMID- 29034302 TI - Comparison of two immunoassay systems for hCGbeta and PAPP-A in prenatal screening for trisomy 21, 18, and 13 in the first trimester. AB - OBJECTIVES: The biochemical serum markers free beta-human chorionic gonadotropin (hCGbeta) and pregnancy associated plasma protein A (PAPP-A), used in screening for trisomy 21 (T21), trisomy 18 (T18), and trisomy 13 (T13) during the first trimester, can be measured on different laboratory instruments e.g. Kryptor (Brahms) and Cobas (Roche). We compared the performance of these two analytical instruments when used for first trimester combined testing. DESIGN AND METHODS: Serum samples from 944 singleton pregnant women attending for first trimester combined testing were routinely assayed for hCGbeta and PAPP-A on Kryptor, and re analyzed on Cobas. In addition, serum samples from 70 pregnant women carrying a fetus affected by T21, T18 or T13, were re-assayed on Cobas. RESULTS: For the screening population, the hCGbeta and PAPP-A results in multiples of the median (MoM) from Kryptor and Cobas were significantly lower on Cobas when compared to Kryptor. The number of pregnant women with a risk above 1:300 for T21 was 48 for both Cobas and Kryptor, although a few patients only had a high risk with one of the methods. Overall, the screen positive rate was 5.1% for both instruments. In the trisomy groups the calculated risks for T21, T18, and T13 agreed well between Cobas and Kryptor. CONCLUSIONS: The screen positive rate for T21 (5.1%) did not differ between the two analytical platforms in our screening population, although PAPP-A measurements form Cobas were significantly lower than those from Kryptor. The calculated risks for the pregnancies affected by trisomies using hCGbeta MoM and PAPP-A MoM from Kryptor agreed well with those from Cobas. PMID- 29034303 TI - Validation of capillary blood analysis and capillary testing mode on the epoc Point of Care system. AB - BACKGROUND: Laboratory test in transport is a critical component of patient care, and capillary blood is a preferred sample type particularly in children. This study evaluated the performance of capillary blood testing on the epoc Point of Care Blood Analysis System (Alere Inc). METHODS: Ten fresh venous blood samples was tested on the epoc system under the capillary mode. Correlation with GEM 4000 (Instrumentation Laboratory) was examined for Na+, K+, Cl-, Ca2+, glucose, lactate, hematocrit, hemoglobin, pO2, pCO2, and pH, and correlation with serum tested on Vitros 5600 (Ortho Clinical Diagnostics) was examined for creatinine. Eight paired capillary and venous blood was tested on epoc and ABL800 (Radiometer) for the correlation of Na+, K+, Cl-, Ca2+, glucose, lactate, hematocrit, hemoglobin, pCO2, and pH. Capillary blood from 23 apparently healthy volunteers was tested on the epoc system to assess the concordance to reference ranges used locally. RESULTS: Deming regression correlation coefficients for all the comparisons were above 0.65 except for ionized Ca2+. Accordance of greater than 85% to the local reference ranges were found in all assays with the exception of pO2 and Cl-. CONCLUSION: Data from this study indicates that capillary blood tests on the epoc system provide comparable results to reference method for these assays, Na+, K+, glucose, lactate, hematocrit, hemoglobin, pCO2, and pH. Further validation in critically ill patients is needed to implement the epoc system in patient transport. IMPACT OF THE STUDY: This study demonstrated that capillary blood tests on the epoc Point of Care Blood Analysis System give comparable results to other chemistry analyzers for major blood gas and critical tests. The results are informative to institutions where pre-hospital and inter hospital laboratory testing on capillary blood is a critical component of patient point of care testing. PMID- 29034304 TI - Validated low-volume aldosterone immunoassay tailored to GCLP-compliant investigations in small sample volumes. AB - INTRODUCTION: Heart failure is well investigated in adults, but data in children is lacking. To overcome this shortage of reliable data, appropriate bioanalytical assays are required. OBJECTIVES: Development and validation of a bioanalytical assay for the determination of aldosterone concentrations in small sample volumes applicable to clinical studies under Good Clinical Laboratory Practice. METHODS: An immunoassay was developed based on a commercially available enzyme-linked immunosorbent assay and validated according to current bioanalytical guidelines of the EMA and FDA. RESULTS: The assay (range 31.3-1000 pg/mL [86.9-2775 pmol/L]) is characterized by a between-run accuracy from - 3.8% to - 0.8% and a between run imprecision ranging from 4.9% to 8.9% (coefficient of variation). For within run accuracy, the relative error was between - 11.1% and + 9.0%, while within-run imprecision ranged from 1.2% to 11.8% (CV). For parallelism and dilutional linearity, the relative error of back-calculated concentrations varied from - 14.1% to + 8.4% and from - 7.4% to + 10.5%, respectively. CONCLUSIONS: The immunoassay is compliant with the bioanalytical guidelines of the EMA and FDA and allows accurate and precise aldosterone determinations. As the assay can run low volume samples, it is especially valuable for pediatric investigations. PMID- 29034305 TI - Fecal zonulin is elevated in Crohn's disease and in cigarette smokers. AB - OBJECTIVES: Human zonulin is a protein that increases permeability in the epithelial layer of the small intestine by reversibly modulating the intercellular tight junctions. There is not sufficient information available about zonulin's participation in inflammatory bowel diseases (IBD). The aim of this study was therefore to investigate fecal and serum zonulin in IBD patients and its relation to the disease localization, behavior and smoking status. DESIGN AND METHODS: Forty IBD patients and forty healthy persons were examined for fecal and serum zonulin concentrations by competitive ELISA (DRG International Inc). Values were correlated to IBD type, localization and behavior, and smoking. RESULTS: Serum and fecal zonulin were significantly higher in patients with Crohn's disease compared to ulcerative colitis (p = 0.038 for fecal zonulin, and p = 0.041 for serum zonulin concentrations). No association of serum or fecal zonulin was found with respect to IBD localization and behavior. The only difference was found with respect to smoking. Both the IBD cohort and healthy smokers showed significantly higher fecal zonulin levels (median 203 ng/mL) compared to non-smokers (median 35.8 ng/mL), p < 0.001. CONCLUSIONS: Fecal and serum zonulin levels are elevated in patients with active Crohn's disease but not with ulcerative colitis. High fecal zonulin levels in smokers irrespective of IBD point to the significant and undesirable up-regulation of gut permeability in cigarette smokers. PMID- 29034306 TI - Prolonged survival after intraperitoneal interleukin-2 immunotherapy for recurrent ovarian cancer. AB - *A case report of a 14 year remission of recurrent ovarian cancer with intraperitoneal aldesleukin (IL-2) is presented.*Intraperitoneal IL-2 was given with little toxicity.*Immunotherapy may have the potential for durable remissions in ovarian cancer. PMID- 29034307 TI - Uterine Clostridium perfringens infection related to gynecologic malignancy. AB - Uterine gas gangrene caused by Clostridium perfringens is a serious, often life threatening infection that is rarely encountered in the practice of gynecologic oncology. However, the hypoxic nature of gynecologic cancers due to necrosis and/or prior radiation therapy creates a microenvironment optimal for proliferation of anaerobic bacteria such as the Clostridium species. Early recognition and aggressive treatment with IV antibiotics and surgical debridement remain the cornerstones of management in order to decrease morbidity and mortality. Here we present the case of a 52 year-old woman with a remote history of cervical cancer who was previously treated at our institution with primary chemotherapy and radiation and was then admitted decades later with Clostridium perfringens bacteremia and CT evidence of intrauterine abscess. The patient received a prolonged course of IV antibiotic therapy and subsequently underwent definitive surgical management with a total abdominal hysterectomy, bilateral salpingo-oophorectomy, small bowel resection with anastomosis for a utero-ileal fistula identified intraoperatively. Pathology from the uterine specimen demonstrated a primary poorly differentiated uterine adenocarcinoma. The patient recovered fully from her Clostridium perfringens infection and was discharged from the hospital shortly after surgical intervention. PMID- 29034308 TI - Cost-effectiveness analysis study of HPV testing as a primary cervical cancer screening in Thailand. AB - OBJECTIVES: The aim of this study is to compare the cost and benefit of four different cervical cancer screening strategies involving primary HPV 16/18 genotyping, hrHPV testing alone and cytology for detecting CIN2 +. METHODS: Economical analysis using Markov modeling approach to combine the epidemiological data from current population-based study of The National Cancer Institute of Thailand. A cohort of 100,000 hypothetical female population age 30-65 years was simulated in each strategy. The compared strategies are HPV 16/18 genotyping with reflexed cytology, hrHPV testing alone followed by colposcopy, Papanicolaou standard cytology and liquid based cytology followed by colposcopy. The interval of screening was 5 years' interval. The main outcomes were defined as a number of CIN2 + cases and cost per 100,000 women screening over 35 years. RESULTS: Model predictions indicated that, the most cost-effectiveness strategy is hrHPV testing alone by reducing cost and also increase CIN2 + detection rate. It identify an additional 130 cases and decrease cost by 46,950,840 THB (1,394,441 USD) per 100,000 women screened when compared to HPV 16/18 genotyping. Compared with cytology, hrHPV testing decrease cost by 51,279,781 THB (1,523,011 USD) and detected more 506 cases of CIN2 +. From sensitivity analysis, the cost of HPV testing, cost of colposcopy, incidence of HPV infection and sensitivity of cytology may affect the results. (1 USD = 33.67 Baht). CONCLUSION: The results of this cost-effectiveness analysis support the full scale implementation of HPV testing as a primary cervical cancer screening in Thailand. PMID- 29034309 TI - Metastatic uterine tumor resembling ovarian sex cord tumor: A case report and review of the literature. AB - Uterine tumors resembling ovarian sex cord tumors (UTROSCTs) are rare and commonly characterized as benign tumors, with infrequent reports of metastasis and recurrence. Treatment recommendations have not been well established, particularly for more advanced cases. We present the first reported death from a metastatic UTROSCT, summarize the available literature, and describe characteristics common to UTROSCTs with aggressive features. In this case, a 49 year-old woman presented with abdominal distension and pain; initial imaging and diagnostic workup suggested metastatic epithelial ovarian cancer to be the cause. The patient subsequently underwent neoadjuvant chemotherapy followed by optimal cytoreductive surgery and adjuvant chemotherapy. Final pathology revealed UTROSCT with omental and peritoneal metastases. She then underwent adjuvant chemotherapy with subsequent recurrence and died 15 months after her initial diagnosis. Our analysis of this case and the available literature led us to identify pathologic risk factors that may help predict aggressive UTROSCT behavior. PMID- 29034310 TI - Further education improves cognitive reserve and triggers improvement in selective cognitive functions in older adults: The Tasmanian Healthy Brain Project. AB - INTRODUCTION: The strong link between early-life education and subsequent reduced risk of dementia suggests that education in later life could enhance cognitive function and may reduce age-related cognitive decline and protect against dementia. METHODS: Episodic memory, working memory, executive function, and language processing performances were assessed annually over 4 years in 359 healthy older adults who attended university for a minimum of 12 months (intervention) and were compared against 100 healthy adult controls. RESULTS: Multiple group latent growth curve modeling revealed a significant improvement in language processing capacity over time in the intervention group. No changes were detected for episodic memory, working memory, or executive function. DISCUSSION: These results suggest that complex mental stimulation resulting from late-life further education results in improved crystallized knowledge but no changes to fluid cognitive functions. PMID- 29034311 TI - Left atrial deformation: Useful index for early detection of cardiac damage in chronic mitral regurgitation. AB - In chronic mitral regurgitation (MR) left atrium is one of the first cardiac structures that is involved in remodeling and ultrastructural changes for a progressive volume overload. Severe left atrial (LA) dilation on echocardiography and new onset of atrial fibrillation in asymptomatic patients with preserved Left Ventricular (LV) function, appeared as a Class IIb recommendation for consideration for surgical mitral valve repair in the actual guidelines. However, before atrial dilatation and dysfunction, several ultrastructural changes appear in the atrial muscle tissue that are difficult to identify with the standard echocardiography. Speckle tracking echocardiography (STE) can analyze LA function: it has been showed that it can indirectly identify structural tissue modifications from excessive atrial effort in the early stages of MR up to the full depression of atrial function in the late stages where there are advanced ultrastructural alterations. This review aims to summarize current knowledge on the role of atrial strain identifying early structural alterations of the atrial tissue in the rising stages of MR considering that Left Atrial Peak Longitudinal Strain (PALS) considered useful parameter for a more extensive evaluation of MR patients. PMID- 29034312 TI - TGF-beta Inhibition Improves Oncolytic Herpes Viroimmunotherapy in Murine Models of Rhabdomyosarcoma. AB - Oncolytic viruses are an emerging class of cancer therapeutics that couple cytotoxicity with the induction of an anti-tumor immune response. Host-virus interactions are complex and modulated by a tumor microenvironment whose immunosuppressive activities can limit the effectiveness of cancer immunotherapies. In an effort to improve this aspect of oncolytic virotherapy, we combined the oncolytic herpes virus HSV1716 with the transforming growth factor beta receptor 1 (TGF-betaR1) inhibitor A8301 to treat syngeneic models of murine rhabdomyosarcoma. Mice that received HSV1716 or A8301 alone showed little to no benefit in efficacy and survival over controls. Conversely, mice given combination therapy exhibited tumor stabilization throughout the treatment regimen, which was reflected in significantly prolonged survival times including some complete responses. In vitro cell viability and virus replication assays showed that the rhabdomyosarcoma cell lines were generally insensitive to HSV1716 and A8301. Likewise, in vivo virus replication assays showed that HSV1716 titers moderately decreased in the presence of A8301. The enhanced efficacy instead appears to be dependent on the generation of an improved anti-tumor T cell response as determined by its loss in athymic nude mice and following in vivo depletion of either CD4+ or CD8+ cells. These data suggest TGF-beta inhibition can augment the immunotherapeutic efficacy of oncolytic herpes virotherapy. PMID- 29034313 TI - Newly Characterized Murine Undifferentiated Sarcoma Models Sensitive to Virotherapy with Oncolytic HSV-1 M002. AB - Despite advances in conventional chemotherapy, surgical techniques, and radiation, outcomes for patients with relapsed, refractory, or metastatic soft tissue sarcomas are dismal. Survivors often suffer from lasting morbidity from current treatments. New targeted therapies with less toxicity, such as those that harness the immune system, and immunocompetent murine sarcoma models to test these therapies are greatly needed. We characterized two new serendipitous murine models of undifferentiated sarcoma (SARC-28 and SARC-45) and tested their sensitivity to virotherapy with oncolytic herpes simplex virus 1 (HSV-1). Both models expressed high levels of the primary HSV entry molecule nectin-1 (CD111) and were susceptible to killing by interleukin-12 (IL-12) producing HSV-1 M002 in vitro and in vivo. M002 resulted in a significant intratumoral increase in effector CD4+ and CD8+ T cells and activated monocytes, and a decrease in myeloid derived suppressor cells (MDSCs) in immunocompetent mice. Compared to parent virus R3659 (no IL-12 production), M002 resulted in higher CD8:MDSC and CD8:T regulatory cell (Treg) ratios, suggesting that M002 creates a more favorable immune tumor microenvironment. These data provide support for clinical trials targeting sarcomas with oncolytic HSV-1. These models provide an exciting opportunity to explore combination therapies for soft tissue sarcomas that rely on an intact immune system to reach full therapeutic potential. PMID- 29034314 TI - Targeting an Oncolytic Influenza A Virus to Tumor Tissue by Elastase. AB - Oncolytic viruses are currently established as a novel type of immunotherapy. The challenge is to safely target oncolytic viruses to tumors. Previously, we have generated influenza A viruses (IAVs) containing deletions in the viral interferon antagonist. Those deletions have attenuated the virus in normal tissue but allowed replication in tumor cells. IAV entry is mediated by hemagglutinin (HA), which needs to be activated by a serine protease, for example, through trypsin. To further target the IAV to tumors, we have changed the trypsin cleavage site to an elastase cleavage site. We chose this cleavage site because elastase is expressed in the tumor microenvironment. Moreover, the exchange of the cleavage site previously has been shown to attenuate viral growth in lungs. Newly generated elastase-activated influenza viruses (AE viruses) grew to similar titers in tumor cells as the trypsin-activated counterparts (AT viruses). Intratumoral injection of AE viruses into syngeneic B16f1 melanoma-derived tumors in mice reduced tumor growth similar to AT viruses and had a better therapeutic effect in heterologous human PANC-1-derived tumors. Therefore, the introduction of the attenuation marker "elastase cleavage site" in viral HA allows for safe, effective oncolytic virus therapy. PMID- 29034315 TI - Emergence of beta-Band Oscillations in the Aged Rat Amygdala during Discrimination Learning and Decision Making Tasks. AB - Older adults tend to use strategies that differ from those used by young adults to solve decision-making tasks. MRI experiments suggest that altered strategy use during aging can be accompanied by a change in extent of activation of a given brain region, inter-hemispheric bilateralization or added brain structures. It has been suggested that these changes reflect compensation for less effective networks to enable optimal performance. One way that communication can be influenced within and between brain networks is through oscillatory events that help structure and synchronize incoming and outgoing information. It is unknown how aging impacts local oscillatory activity within the basolateral complex of the amygdala (BLA). The present study recorded local field potentials (LFPs) and single units in old and young rats during the performance of tasks that involve discrimination learning and probabilistic decision making. We found task- and age specific increases in power selectively within the beta range (15-30 Hz). The increased beta power occurred after lever presses, as old animals reached the goal location. Periods of high-power beta developed over training days in the aged rats, and was greatest in early trials of a session. beta Power was also greater after pressing for the large reward option. These data suggest that aging of BLA networks results in strengthened synchrony of beta oscillations when older animals are learning or deciding between rewards of different size. Whether this increased synchrony reflects the neural basis of a compensatory strategy change of old animals in reward-based decision-making tasks, remains to be verified. PMID- 29034317 TI - Luciferase shRNA Presents off-Target Effects on Voltage-Gated Ion Channels in Mouse Hippocampal Pyramidal Neurons. AB - RNA interference (RNAi) is a straightforward approach to study gene function from the in vitro cellular level to in vivo animal behavior. Although RNAi-mediated gene knockdown has become essentially routine in neuroscience over the past ten years, off-target effects of short hairpin RNAs (shRNAs) should be considered as the proper choice of control shRNA is critical in order to perform meaningful experiments. Luciferase shRNA (shLuc), targeting firefly luciferase, and scrambled shRNAs (shScrs) have been widely used as controls for vertebrate cell research. However, thorough validation of control shRNAs has not been made to date. Here, we performed thorough physiological and morphological studies against control shRNAs in mouse hippocampal CA1 pyramidal neurons. As expected, all control shRNAs exhibited normal basal synaptic transmission and dendritic morphology. However, to our surprise, shLuc exerted severe off-target effects on voltage-gated ion channel function, while the shScr had no detectable changes. These results indicate that thorough validation of shRNA is imperative and, in the absence of such validation, that shScr is the best available negative control for gene knockdown studies. PMID- 29034316 TI - Large-Scale Network Coupling with the Fusiform Cortex Facilitates Future Social Motivation. AB - Large-scale functional networks, as identified through the coordinated activity of spatially distributed brain regions, have become central objects of study in neuroscience because of their contributions to many processing domains. Yet, it remains unclear how these domain-general networks interact with focal brain regions to coordinate thought and action. Here, we investigated how the default mode network (DMN) and executive control network (ECN), two networks associated with goal-directed behavior, shape task performance through their coupling with other cortical regions several seconds in advance of behavior. We measured these networks' connectivity during an adaptation of the monetary incentive delay (MID) response-time task in which human participants viewed social and nonsocial images (i.e., pictures of faces and landscapes, respectively) while brain activity was measured using fMRI. We found that participants displayed slower reaction times (RTs) subsequent to social trials relative to nonsocial trials. To examine the neural mechanisms driving this subsequent-RT effect, we integrated independent components analysis (ICA) and a network-based psychophysiological interaction (nPPI) analysis; this allowed us to investigate task-related changes in network coupling that preceded the observed trial-to-trial variation in RT. Strikingly, when subjects viewed social rewards, an area of the fusiform gyrus (FG) consistent with the functionally-defined fusiform face area (FFA) exhibited increased coupling with the ECN (relative to the DMN), and the relative magnitude of coupling tracked the slowing of RT on the following trial. These results demonstrate how large-scale, domain-general networks can interact with focal, domain-specific cortical regions to orchestrate subsequent behavior. PMID- 29034318 TI - Mediodorsal Thalamic Neurons Mirror the Activity of Medial Prefrontal Neurons Responding to Movement and Reinforcement during a Dynamic DNMTP Task. AB - The mediodorsal nucleus (MD) interacts with medial prefrontal cortex (mPFC) to support learning and adaptive decision-making. MD receives driver (layer 5) and modulatory (layer 6) projections from PFC and is the main source of driver thalamic projections to middle cortical layers of PFC. Little is known about the activity of MD neurons and their influence on PFC during decision-making. We recorded MD neurons in rats performing a dynamic delayed nonmatching to position (dDNMTP) task and compared results to a previous study of mPFC with the same task (Onos et al., 2016). Criterion event-related responses were observed for 22% (254/1179) of neurons recorded in MD, 237 (93%) of which exhibited activity consistent with mPFC response types. More MD than mPFC neurons exhibited responses related to movement (45% vs. 29%) and reinforcement (51% vs. 27%). MD had few responses related to lever presses, and none related to preparation or memory delay, which constituted 43% of event-related activity in mPFC. Comparison of averaged normalized population activity and population response times confirmed the broad similarity of common response types in MD and mPFC and revealed differences in the onset and offset of some response types. Our results show that MD represents information about actions and outcomes essential for decision-making during dDNMTP, consistent with evidence from lesion studies that MD supports reward-based learning and action-selection. These findings support the hypothesis that MD reinforces task-relevant neural activity in PFC that gives rise to adaptive behavior. PMID- 29034319 TI - High-Precision Fast-Spiking Basket Cell Discharges during Complex Events in the Human Neocortex. AB - In the human neocortex, solitary action potentials in some layer 2-3 pyramidal cells (PCs) trigger brief episodes of network activity known as complex events through strong excitatory synapses that specifically innervate GABAergic interneurons. Yet, how these "master PCs" configure the local network activity is not well understood. We report that single spikes in the PCs, studied here in synaptically connected cell pairs in frontal or temporal neocortical areas of both males and females, elicit firing of fast-spiking basket cells (FSBCs) with a short delay (on average 2.7 ms). The FSBC discharge is triggered by 13 mV (on average) monosynaptic EPSPs, and the action potential is time locked to the master PC spike with high temporal precision, showing little jitter in delay. In the complex events, the FSBC discharge occurs in the beginning of the activity episode, forming the first wave of the complex event activity. Firing of FSBCs generates GABAergic IPSCs with fast kinetics in layer 2-3 PCs, and similar IPSCs regularly occur time locked to master PC spikes in the beginning of the complex events with high probability and short (median 4.1 ms) delay with little jitter. In comparison, discharge of nonfast spiking interneurons (non-FSINs) investigated here appears inconsistently in the complex events and shows low probability. Thus, firing of layer 2-3 FSBCs with high temporal fidelity characterizes early phase of the complex events in the human neocortex. PMID- 29034320 TI - Fetal brain extracellular matrix boosts neuronal network formation in 3D bioengineered model of cortical brain tissue. AB - The extracellular matrix (ECM) constituting up to 20% of the organ volume is a significant component of the brain due to its instructive role in the compartmentalization of functional microdomains in every brain structure. The composition, quantity and structure of ECM changes dramatically during the development of an organism greatly contributing to the remarkably sophisticated architecture and function of the brain. Since fetal brain is highly plastic, we hypothesize that the fetal brain ECM may contain cues promoting neural growth and differentiation, highly desired in regenerative medicine. Thus, we studied the effect of brain-derived fetal and adult ECM complemented with matricellular proteins on cortical neurons using in vitro 3D bioengineered model of cortical brain tissue. The tested parameters included neuronal network density, cell viability, calcium signaling and electrophysiology. Both, adult and fetal brain ECM as well as matricellular proteins significantly improved neural network formation as compared to single component, collagen I matrix. Additionally, the brain ECM improved cell viability and lowered glutamate release. The fetal brain ECM induced superior neural network formation, calcium signaling and spontaneous spiking activity over adult brain ECM. This study highlights the difference in the neuroinductive properties of fetal and adult brain ECM and suggests that delineating the basis for this divergence may have implications for regenerative medicine. PMID- 29034321 TI - Refractory versus resistant hypertension: Novel distinctive phenotypes. AB - Resistant hypertension (RHTN) is relatively common with an estimated prevalence of 10-20% of treated hypertensive patients. It is defined as blood pressure (BP) >140/90 mmHg treated with >=3 antihypertensive medications, including a diuretic, if tolerated. Refractory hypertension is a novel phenotype of severe antihypertensive treatment failure. The proposed definition for refractory hypertension, i.e. BP >140/90 mmHg with use of >=5 different antihypertensive medications, including a diuretic and a mineralocorticoid receptor antagonist (MRA) has been applied inconsistently. In comparison to RHTN, refractory hypertension seems to be less prevalent than RHTN. This review focuses on current knowledge about this novel phenotype compared with RHTN including definition, prevalence, mechanisms, characteristics and comorbidities, including cardiovascular risk. In patients with RHTN excess fluid retention is thought to be a common mechanism for the development of RHTN. Recently, evidence has emerged suggesting that refractory hypertension may be more of neurogenic etiology due to increased sympathetic activity as opposed to excess fluid retention. Treatment recommendations for RHTN are generally based on use and intensification of diuretic therapy, especially with the combination of a long-acting thiazide-like diuretic and an MRA. Based on findings from available studies, such an approach does not seem to be a successful strategy to control BP in patients with refractory hypertension and effective sympathetic inhibition in such patients, either with medications and/or device based approaches may be needed. PMID- 29034322 TI - Socioeconomic Segregation of Activity Spaces in Urban Neighborhoods: Does Shared Residence Mean Shared Routines? AB - Residential segregation by income and education is increasing alongside slowly declining black-white segregation. Segregation in urban neighborhood residents' non-home activity spaces has not been explored. How integrated are the daily routines of people who live in the same neighborhood? Are people with different socioeconomic backgrounds that live near one another less likely to share routine activity locations than those of similar education or income? Do these patterns vary across the socioeconomic continuum or by neighborhood structure? The analyses draw on unique data from the Los Angeles Family and Neighborhood Survey that identify the location where residents engage in routine activities. Using multilevel p2 (network) models, we analyze pairs of households located in the same neighborhood and examine whether the dyad combinations across three levels of SES conduct routine activities in the same location, and whether neighbor socioeconomic similarity in the co-location of routine activities is dependent on the level of neighborhood socioeconomic inequality and trust. Results indicate that, on average, increasing SES diminishes the likelihood of sharing activity locations with any SES group. This pattern is most pronounced in neighborhoods characterized by high levels of socioeconomic inequality. Neighborhood trust explains a nontrivial proportion of the inequality effect on the extent of routine activity sorting by SES. Thus stark, visible neighborhood-level inequality by SES may lead to enhanced effects of distrust on the willingness to share routines across class. PMID- 29034324 TI - A Review of Epidemiologic Studies of the Health of Gulf War Women Veterans. AB - INTRODUCTION: In the 25 years since the 1990-1991 Gulf War (GW), studies have evaluated Gulf War Illness (GWI), sometimes referred to as medically unexplained multi symptom illness, and other medical and neurological conditions in women GW veterans. MATERIALS AND METHODS: In this article, we review epidemiologic studies of the health of women who served in the 1990-1991 GW based upon bibliographic searches in PubMed and CINAHL with relevant search terms through September 2015. RESULTS: A total of 56 articles were identified in the bibliographic searches. By screening abstracts or full-text articles, a total of 21 relevant studies were identified. Results from some studies, but not all, suggest that GWI is more common in women GW veterans than their male counterparts. Few studies of GW veterans focused on women's health. A small number of studies suggested excess rates of woman's health problems, e.g., breast cysts, abnormal Papanicolaou (Pap) smears, yeast infections, and bladder infections. Several studies have identified significantly elevated rates of birth defects and adverse reproductive outcomes among GW veterans. However, findings have varied with different study designs and sample sizes, with some studies showing elevated risks of stillbirths, miscarriages, and/or birth defects and others have not. In some studies, participants reported increased risks of ectopic pregnancies and spontaneous abortions. CONCLUSION: Further research is needed to provide a comprehensive picture of the health of women GW veterans and to examine a broad range of women's health issues including adverse reproductive outcomes. Some deployment related health problems only become apparent decades later and other conditions may worsen or improve over time. Assessments are needed of current health status, changes in health symptoms and conditions over time, and possible differences in health outcomes associated with specific experiences and exposures during the war. Future studies would be strengthened by assessing GWI symptom patterns that may be specific to women veterans, examine diagnosed medical conditions among women veterans, and evaluate changes in women's health over time, including changes potentially associated with menopause and age. PMID- 29034323 TI - Hypothesizing that a Pro-Dopaminergic Regulator (KB220zTM Liquid Variant) can Induce "Dopamine Homeostasis" and Provide Adjunctive Detoxification Benefits in Opiate/Opioid Dependence. AB - In order to explore the initiation of detoxification of addictive patients to opiates/opioids (along with some other anti-withdrawal agents), we developed a protocol to be utilized in treatment centers particularly with heavily dependent opiate/opioid subjects. Out of 17 subjects, only three received Buprenorphine/Naloxone (Bup/nx) along with KB220Z. In this pilot, we first used a dose of KB220Z of 2 oz twice daily before meals along with clonidine and benzodiazepines and other anti-nausea and sleep aids including Gabapentin. The dose of KB220Z was maintained for 6 days in five individuals. In a second scenario, we utilized a higher dose of 4 oz every 6 hours, over a 6-day period. The higher dose was employed in another 12 patients. It is noteworthy that only 3 people have relapsed utilizing these two protocols during the first two weeks of the study, allowing for the remaining 82% to be maintained on KB220Z. The patients have been maintained without any additional Bup/nx for a minimum of 120 days and in one subject, 214 days. We are in the process of testing this hypothesis in multiple treatment centers across the United Sates utilizing data from the Clinical opiate Withdrawal Scale (COWS) pre and post KB220Z. We are in the process of testing this hypothesis in multiple treatment centers across the United Sates. While this does not constitute an acceptable controlled experiment, it does provide some preliminary evidence that agrees with an earlier study. Moreover, because of the utilization of standard detoxifying agents in this detoxification protocol, we cannot make any inference to KB220Z's effects. However, out of 17 subjects, only three required Bup/nx suggesting an interesting finding. If further confirmed in larger studies, the utilization for opiate/opioid detoxification may provide a novel way to eliminate the need for addictive opioids during withdrawal and detoxification. This paradigm shift may translate to a reduction in utilizing powerful and addictive opioids like buprenorphine and methadone (especially in these patients at high genetic risk for addiction) as not only detoxifying agents, but also maintenance drugs. While extensive research is required, this pilot paves the way for future investigations that could assist in the reduction of addictive opiate/opioid use and mortalities amongst both the young and old in America. PMID- 29034325 TI - Collection of Viable Aerosolized Influenza Virus and Other Respiratory Viruses in a Student Health Care Center through Water-Based Condensation Growth. AB - The dynamics and significance of aerosol transmission of respiratory viruses are still controversial, for the major reasons that virus aerosols are inefficiently collected by commonly used air samplers and that the collected viruses are inactivated by the collection method. Without knowledge of virus viability, infection risk analyses lack accuracy. This pilot study was performed to (i) determine whether infectious (viable) respiratory viruses in aerosols could be collected from air in a real world environment by the viable virus aerosol sampler (VIVAS), (ii) compare and contrast the efficacy of the standard bioaerosol sampler, the BioSampler, with that of the VIVAS for the collection of airborne viruses in a real world environment, and (iii) gain insights for the use of the VIVAS for respiratory virus sampling. The VIVAS operates via a water vapor condensation process to enlarge aerosolized virus particles to facilitate their capture. A variety of viable human respiratory viruses, including influenza A H1N1 and H3N2 viruses and influenza B viruses, were collected by the VIVAS located at least 2 m from seated patients, during a late-onset 2016 influenza virus outbreak. Whereas the BioSampler when operated following our optimized parameters also collected virus aerosols, it was nevertheless overall less successful based on a lower frequency of virus isolation in most cases. This side by-side comparison highlights some limitations of past studies based on impingement-based sampling, which may have generated false-negative results due to either poor collection efficiency and/or virus inactivation due to the collection process. IMPORTANCE The significance of virus aerosols in the natural transmission of respiratory diseases has been a contentious issue, primarily because it is difficult to collect or sample virus aerosols using currently available air sampling devices. We tested a new air sampler based on water vapor condensation for efficient sampling of viable airborne respiratory viruses in a student health care center as a model of a real world environment. The new sampler outperformed the industry standard device (the SKC BioSampler) in the collection of natural virus aerosols and in maintaining virus viability. These results using the VIVAS indicate that respiratory virus aerosols are more prevalent and potentially pose a greater inhalation biohazard than previously thought. The VIVAS thus appears to be a useful apparatus for microbiology air quality tests related to the detection of viable airborne viruses. PMID- 29034328 TI - How Should I Submit to mSphere: Traditional, Expedited, or mSphereDirect? PMID- 29034326 TI - Bacterial Lipopolysaccharide Destabilizes Influenza Viruses. AB - Depending on the specific viral pathogen, commensal bacteria can promote or reduce the severity of viral infection and disease progression in their hosts. Influenza A virus (IAV) has a broad host range, comprises many subtypes, and utilizes different routes of transmission, including the fecal-oral route in wild birds. It has been previously demonstrated that commensal bacteria can interact with the host's immune system to protect against IAV pathogenesis. However, it is unclear whether bacteria and their products may be interacting directly with IAV to impact virion stability. Herein we show that gastrointestinal (GI) tract bacterial isolates in an in vitro system significantly reduce the stability of IAV. Moreover, bacterial lipopolysaccharide (LPS), found on the exterior surfaces of bacteria, was sufficient to significantly decrease the stability of both human and avian viral strains in a temperature-dependent manner, including at the relevant temperatures of their respective hosts and the external aquatic habitat. The subtype and host origin of the viruses were shown to affect the extent to which IAV was susceptible to LPS. Furthermore, using a receptor binding assay and transmission electron microscopy, we observed that LPS binds to and alters the morphology of influenza virions, suggesting that direct interaction with the viral surface contributes to the observed antiviral effect of LPS on influenza. IMPORTANCE Influenza A virus (IAV), transmitted primarily via the fecal-oral route in wild birds, encounters high concentrations of bacteria and their products. Understanding the extent to which bacteria affect the infectivity of IAV will lead to a broader understanding of viral ecology in reservoir hosts and may lead to insights for the development of therapeutics in respiratory infection. Herein we show that bacteria and lipopolysaccharide (LPS) interact with and destabilize influenza virions. Moreover, we show that LPS reduces the long-term persistence and freeze-thaw stability of IAV, which is important information for modeling the movement and emergence of novel strains from animal hosts. Our results, demonstrating that the subtype and host origin of a virus also influence its susceptibility to LPS, raise key questions about the fitness of viruses in reservoir hosts, their potential to transmit to humans, and the importance of bacterial-viral interactions in viral ecology. PMID- 29034327 TI - High-Fat Diet Changes Fungal Microbiomes and Interkingdom Relationships in the Murine Gut. AB - Dietary fat intake and shifts in gut bacterial community composition are associated with the development of obesity. To date, characterization of microbiota in lean versus obese subjects has been dominated by studies of gut bacteria. Fungi, recently shown to affect gut inflammation, have received little study for their role in obesity. We sought to determine the effects of high-fat diet on fungal and bacterial community structures in a mouse model using the internal transcribed spacer region 2 (ITS2) of fungal ribosomal DNA (rDNA) and the 16S rRNA genes of bacteria. Mice fed a high-fat diet had significantly different abundances of 19 bacterial and 6 fungal taxa than did mice fed standard chow, with high-fat diet causing similar magnitudes of change in overall fungal and bacterial microbiome structures. We observed strong and complex diet-specific coabundance relationships between intra- and interkingdom microbial pairs and dramatic reductions in the number of coabundance correlations in mice fed a high fat diet compared to those fed standard chow. Furthermore, predicted microbiome functional modules related to metabolism were significantly less abundant in high fat-diet-fed than in standard-chow-fed mice. These results suggest a role for fungi and interkingdom interactions in the association between gut microbiomes and obesity. IMPORTANCE Recent research shows that gut microbes are involved in the development of obesity, a growing health problem in developed countries that is linked to increased risk for cardiovascular disease. However, studies showing links between microbes and metabolism have been limited to the analysis of bacteria and have ignored the potential contribution of fungi in metabolic health. This study provides evidence that ingestion of a high-fat diet is associated with changes to the fungal (and bacterial) microbiome in a mouse model. In addition, we find that interkingdom structural and functional relationships exist between fungi and bacteria within the gut and that these are perturbed by high-fat diet. PMID- 29034329 TI - Comparative Metabolomics of Mycoplasma bovis and Mycoplasma gallisepticum Reveals Fundamental Differences in Active Metabolic Pathways and Suggests Novel Gene Annotations. AB - Mycoplasmas are simple, but successful parasites that have the smallest genome of any free-living cell and are thought to have a highly streamlined cellular metabolism. Here, we have undertaken a detailed metabolomic analysis of two species, Mycoplasma bovis and Mycoplasma gallisepticum, which cause economically important diseases in cattle and poultry, respectively. Untargeted gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry analyses of mycoplasma metabolite extracts revealed significant differences in the steady-state levels of many metabolites in central carbon metabolism, while 13C stable isotope labeling studies revealed marked differences in carbon source utilization. These data were mapped onto in silico metabolic networks predicted from genome wide annotations. The analyses elucidated distinct differences, including a clear difference in glucose utilization, with a marked decrease in glucose uptake and glycolysis in M. bovis compared to M. gallisepticum, which may reflect differing host nutrient availabilities. The 13C-labeling patterns also revealed several functional metabolic pathways that were previously unannotated in these species, allowing us to assign putative enzyme functions to the products of a number of genes of unknown function, especially in M. bovis. This study demonstrates the considerable potential of metabolomic analyses to assist in characterizing significant differences in the metabolism of different bacterial species and in improving genome annotation. IMPORTANCE Mycoplasmas are pathogenic bacteria that cause serious chronic infections in production animals, resulting in considerable losses worldwide, as well as causing disease in humans. These bacteria have extremely reduced genomes and are thought to have limited metabolic flexibility, even though they are highly successful persistent parasites in a diverse number of species. The extent to which different Mycoplasma species are capable of catabolizing host carbon sources and nutrients, or synthesizing essential metabolites, remains poorly defined. We have used advanced metabolomic techniques to identify metabolic pathways that are active in two species of Mycoplasma that infect distinct hosts (poultry and cattle). We show that these species exhibit marked differences in metabolite steady-state levels and carbon source utilization. This information has been used to functionally characterize previously unknown genes in the genomes of these pathogens. These species specific differences are likely to reflect important differences in host nutrient levels and pathogenic mechanisms. PMID- 29034330 TI - Perinatal Bisphenol A Exposure Induces Chronic Inflammation in Rabbit Offspring via Modulation of Gut Bacteria and Their Metabolites. AB - Bisphenol A (BPA) accumulates in the maturing gut and liver in utero and is known to alter gut bacterial profiles in offspring. Gut bacterial dysbiosis may contribute to chronic colonic and systemic inflammation. We hypothesized that perinatal BPA exposure-induced intestinal (and liver) inflammation in offspring is due to alterations in the microbiome and colonic metabolome. The 16S rRNA amplicon sequencing analysis revealed differences in beta diversity with a significant reduction in the relative abundances of short-chain fatty acid (SCFA) producers such as Oscillospira and Ruminococcaceae due to BPA exposure. Furthermore, BPA exposure reduced fecal SCFA levels and increased systemic lipopolysaccharide (LPS) levels. BPA exposure-increased intestinal permeability was ameliorated by the addition of SCFA in vitro. Metabolic fingerprints revealed alterations in global metabolism and amino acid metabolism. Thus, our findings indicate that perinatal BPA exposure may cause gut bacterial dysbiosis and altered metabolite profiles, particularly SCFA profiles, leading to chronic colon and liver inflammation. IMPORTANCE Emerging evidence suggests that environmental toxicants may influence inflammation-promoted chronic disease susceptibility during early life. BPA, an environmental endocrine disruptor, can transfer across the placenta and accumulate in fetal gut and liver. However, underlying mechanisms for BPA-induced colonic and liver inflammation are not fully elucidated. In this report, we show how perinatal BPA exposure in rabbits alters gut microbiota and their metabolite profiles, which leads to colonic and liver inflammation as well as to increased gut permeability as measured by elevated serum lipopolysaccharide (LPS) levels in the offspring. Also, perinatal BPA exposure leads to reduced levels of gut bacterial diversity and bacterial metabolites (short-chain fatty acids [SCFA]) and elevated gut permeability-three common early biomarkers of inflammation-promoted chronic diseases. In addition, we showed that SCFA ameliorated BPA-induced intestinal permeability in vitro. Thus, our study results suggest that correcting environmental toxicant-induced bacterial dysbiosis early in life may reduce the risk of chronic diseases later in life. PMID- 29034331 TI - Extensive Core Microbiome in Drone-Captured Whale Blow Supports a Framework for Health Monitoring. AB - The pulmonary system is a common site for bacterial infections in cetaceans, but very little is known about their respiratory microbiome. We used a small, unmanned hexacopter to collect exhaled breath condensate (blow) from two geographically distinct populations of apparently healthy humpback whales (Megaptera novaeangliae), sampled in the Massachusetts coastal waters off Cape Cod (n = 17) and coastal waters around Vancouver Island (n = 9). Bacterial and archaeal small-subunit rRNA genes were amplified and sequenced from blow samples, including many of sparse volume, as well as seawater and other controls, to characterize the associated microbial community. The blow microbiomes were distinct from the seawater microbiomes and included 25 phylogenetically diverse bacteria common to all sampled whales. This core assemblage comprised on average 36% of the microbiome, making it one of the more consistent animal microbiomes studied to date. The closest phylogenetic relatives of 20 of these core microbes were previously detected in marine mammals, suggesting that this core microbiome assemblage is specialized for marine mammals and may indicate a healthy, noninfected pulmonary system. Pathogen screening was conducted on the microbiomes at the genus level, which showed that all blow and few seawater microbiomes contained relatives of bacterial pathogens; no known cetacean respiratory pathogens were detected in the blow. Overall, the discovery of a shared large core microbiome in humpback whales is an important advancement for health and disease monitoring of this species and of other large whales. IMPORTANCE The conservation and management of large whales rely in part upon health monitoring of individuals and populations, and methods generally necessitate invasive sampling. Here, we used a small, unmanned hexacopter drone to noninvasively fly above humpback whales from two populations, capture their exhaled breath (blow), and examine the associated microbiome. In the first extensive examination of the large-whale blow microbiome, we present surprising results about the discovery of a large core microbiome that was shared across individual whales from geographically separated populations in two ocean basins. We suggest that this core microbiome, in addition to other microbiome characteristics, could be a useful feature for health monitoring of large whales worldwide. PMID- 29034332 TI - Bartonella henselae initial infection of mature human erythrocytes observed in real time using bacterial endogenous fluorescence. AB - Bartonella henselae is a causative agent of anemia, cat scratch disease, bacillary angiomatosis, recurrent fever, hepatitis, endocarditis, chronic lymphadenopathy, joint and neurological disorders. B. henselae are intra erythrocytic bacteria. The goal of this study was to visualize the B. henselae invasion into enucleated human red blood cells in real time using bacterium endogenous fluorescence. We took advantage of the unique fluorescence emission spectral profile of the bacteria. We used a linear unmixing approach to separate the fluorescence emission spectra of human erythrocytes from native B. henselae when excited at 488nm. Human blood samples were inoculated with B. henselae and incubated for 60 hours. 3-D live images were captured at select intervals using multi-photon laser scanning microscopy. Uninfected blood samples were also analyzed. This study revealed bacteria entering mature erythrocytes over a 60 hour time period. PMID- 29034333 TI - Well-defined nickel and palladium precatalysts for cross-coupling. AB - Transition metal-catalysed cross-coupling is one of the most powerful synthetic methods and has led to vast improvements in the synthesis of pharmaceuticals, agrochemicals and precursors for materials chemistry. A major advance in cross coupling over the past 20 years is the utilization of well-defined, bench-stable Pd and Ni precatalysts that do not require the addition of free ancillary ligand, which can hinder catalysis by occupying open coordination sites on the metal. The development of precatalysts has resulted in new reactions and expanded substrate scopes, enabling transformations under milder conditions and with lower catalyst loadings. This Review highlights recent advances in the development of Pd and Ni precatalysts for cross-coupling, and provides a critical comparison between the state of the art in Pd- and Ni-based systems. PMID- 29034335 TI - Reliability and Validity of the Lichtenberg Financial Decision Screening Scale. AB - The scarcity of empirically validated assessment instruments continues to impede the work of professionals in a number of fields, including medicine, finance, and estate planning; adult protective services; and criminal justice-and, more importantly, it impedes their ability to effectively assist and, in some case, protect their clients. Other professionals (e.g. legal, financial, medical, mental health services) are in a position to prevent financial exploitation and would benefit from access to new instruments. The Lichtenberg Financial Decision Screening Scale (LFDSS) was introduced in 2016, along with evidence for its convergent validity (Lichtenberg et al., 2016). Using a sample of 213 participants, this study investigated the internal consistency of the LFDSS and its criterion validity based on ratings by professionals using the scale. Results demonstrate that the LFDSS has excellent internal consistency and clinical utility properties. This paper provides support for use of the LFDSS as a reliable and valid instrument. The LFDSS and instructions for its use are included in the article, along with information about online tools and support. PMID- 29034334 TI - Arousal-related adjustments of perceptual biases optimize perception in dynamic environments. AB - Prior expectations can be used to improve perceptual judgments about ambiguous stimuli. However, little is known about if and how these improvements are maintained in dynamic environments in which the quality of appropriate priors changes from one stimulus to the next. Using a sound-localization task, we show that changes in stimulus predictability lead to arousal-mediated adjustments in the magnitude of prior-driven biases that optimize perceptual judgments about each stimulus. These adjustments depend on task-dependent changes in the relevance and reliability of prior expectations, which subjects update using both normative and idiosyncratic principles. The resulting variations in biases across task conditions and individuals are reflected in modulations of pupil diameter, such that larger stimulus-evoked pupil responses correspond to smaller biases. These results suggest a critical role for the arousal system in adjusting the strength of perceptual biases with respect to inferred environmental dynamics to optimize perceptual judgements. PMID- 29034336 TI - Occurrence of enrofloxacin in overflows from animal lot and residential sewage lagoons and a receiving-stream. AB - Enrofloxacin (ENRO), a fluoroquinolone, was quantified in overflows from an animal lot and residential sewage lagoons and in a receiving-stream (Gans Creek). The concentrations of ENRO in samples was determined by high-performance liquid chromatography - tandem mass spectrometry. In total, ninety samples including duplicates were analyzed during several monthly sampling campaigns. The samples collected represented the residential sewage lagoon overflow (RLO), animal lot lagoon overflow (ALLO), the combined overflows (RLO and ALLO), and Gans Creek (upstream, midstream and downstream positions). The frequency of detection of ENRO was 90% for RLO and 100% for both ALLO and Gans Creek. The highest concentration of ENRO (0.44 MUg/L) was found in ALLO sample collected during high precipitation. ENRO levels found in RLO samples ranged from < LOQ to 259 ng/L and the highest value observed also coincided with high flow. The levels of ENRO found in Gans Creek ranged from 17-216 ng/L. A preliminary ecotoxicological assessment was conducted through calculation of the risk quotients (RQs) for organisms based on the ratio of the measured environmental concentrations in this study to the predicted-no-effect-concentrations (acute and chronic effect) data. From the RQs, high risks were observed for Microcystis aeruginosa (cyanobacteria; RQ = 4.4); Anabaena flosaquae (cyanobacteria; RQ = 1.3); and Lemna minor (aquatic vascular plant; RQ = 2.0). The long-term effects of mixtures of PHCs on Gans Creek watershed are probable. PMID- 29034338 TI - Desorption of harmful hydrocarbon compounds in soil using micron-sized magnetic particles and high-frequency magnetic fields. AB - This research looks at the use of high frequency (HF) magnetic fields to desorb/reduce harmful chemical compounds within gasoline and diesel that commonly leak out of underground storage tanks. Using a multi-strand coil design, measured magnetic fields of over 3 kilo-amperes per meter are generated at an optimal frequency of 117 kHz without skin-depth losses, and without the use of expensive super-conductors or liquid-cooled mechanisms. This high frequency magnetic field is successfully used in non-contact-based magnetic heating and desorption of Gasoline and Diesel mixed with sand, water and easily-dispersible, benign micrometer-sized iron filings, used as a magnetic absorber. Gas chromatography (GC) tests done on magnetically-heated Gasoline-soil and Diesel-soil mixtures show desorption/reduction of gasoline and diesel by 44% and 51% respectively, but desorption/reduction of harmful BTEX compounds and other chemical irritants within Gasoline and Diesel by 28-66% after only 80 minutes of magnetic heating. Review of remediation/desorption methods show magnetic fields fare favorably in comparison to other methods that require longer treatment period or the use of secondary pollutants at reducing hydrocarbon and BTEX compounds in them. PMID- 29034339 TI - A method for the production of large volumes of WAF and CEWAF for dosing mesocosms to understand marine oil snow formation. AB - Marine oil snow (MOS) formation is a mechanism to transport oil from the ocean surface to sediments. We describe here the use of 110L mesocosms designed to mimic oceanic parameters during an oil spill including the use of chemical dispersants in order to understand the processes controlling MOS formation. These experiments were not designed to be toxicity tests but rather to illustrate mechanisms. This paper focuses on the development of protocols needed to conduct experiments under environmentally relevant conditions to examine marine snow and MOS. The experiments required the production of over 500 liters of water accommodated fraction (WAF), chemically enhanced water accommodated fraction of oil (CEWAF) as well as diluted CEWAF (DCEWAF). A redesigned baffled (170 L) recirculating tank (BRT) system was used. Two mesocosm experiments (M1 and M2) were run for several days each. In both M1 and M2, marine snow and MOS was formed in controls and all treatments respectively. Estimated oil equivalent (EOE) concentrations of CEWAF were in the high range of concentrations reported during spills and field tests, while WAF and DCEWAF concentrations were within the range of concentrations reported during oil spills. EOE decreased rapidly within days in agreement with historic data and experiments. PMID- 29034337 TI - New biomarkers of post-settlement growth in the sea urchin Strongylocentrotus purpuratus. AB - Some sea urchins, including the purple sea urchin Strongylocentrotus purpuratus, have been successfully used in aquaculture, but their slow growth and late reproduction are challenging to overcome when developing efficient aquaculture production techniques. S. purpuratus develops via an indirect life history that is characterized by a drastic settlement process at the end of a larval period that lasts for several weeks. During this transition, the bilateral larva is transformed into a pentaradial juvenile, which will start feeding and growing in the benthic habitat. Due to predation and other ecological factors, settlement is typically associated with high mortality rates in juvenile populations. Additionally, juveniles require several days to develop a functional mouth and digestive system. During this perimetamorphic period, juveniles use up larval resources until they are capable to digest adult food. Mechanisms underlying the onset of juvenile feeding and metabolism have implications for the recruitment of natural populations as well as aquaculture and are relatively poorly understood in S. purpuratus. The insulin/insulin-like growth factor signalling (IIS)/Target of Rapamycin (TOR) pathway (IIS/TOR) is well conserved among animal phyla and regulates physiological and developmental functions, such as growth, reproduction, aging and nutritional status. We analyzed the expression of FoxO, TOR, and ILPs in post-settlement juveniles in conjunction with their early growth trajectories. We also tested how pre-settlement starvation affected post settlement expression of IIS. We found that FoxO provides a useful molecular marker in early juveniles as its expression is strongly correlated with juvenile growth. We also found that pre-settlement starvation affects juvenile growth trajectories as well as IIS. Our findings provide preliminary insights into the mechanisms underlying post-settlement growth and metabolism in S. purpuratus. They also have important implications for sea urchin aquaculture, as they show that pre-settlement nutrient environment significantly affects both early growth trajectories and gene expression. This information can be used to develop new biomarkers for juvenile health in sea urchin population ecology and aquaculture aquaculture. PMID- 29034340 TI - Titanium addition influences antibacterial activity of bioactive glass coatings on metallic implants. AB - In an attempt to combat the possibility of bacterial infection and insufficient bone growth around metallic, surgical implants, bioactive glasses may be employed as coatings. In this work, silica-based and borate-based glass series were synthesized for this purpose and subsequently characterized in terms of antibacterial behavior, solubility and cytotoxicity. Borate-based glasses were found to exhibit significantly superior antibacterial properties and increased solubility compared to their silica-based counterparts, with BRT0 and BRT3 (borate-based glasses with 0 and 15 mol% of titanium dioxide incorporated, respectively) outperforming the remainder of the glasses, both borate and silicate based, in these respects. Atomic Absorption Spectroscopy confirmed the release of zinc ions (Zn2+), which has been linked to the antibacterial abilities of glasses SRT0, BRT0 and BRT3, with inhibition effectively achieved at concentrations lower than 0.7 ppm. In vitro cytotoxicity studies using MC3T3-E1 osteoblasts confirmed that cell proliferation was affected by all glasses in this study, with decreased proliferation attributed to a faster release of sodium ions over calcium ions in both glass series, factor known to slow cell proliferation in vitro. PMID- 29034341 TI - Paclitaxel induces Stathmin 1 phosphorylation, microtubule stability and apoptosis in acute lymphoblastic leukemia cells. AB - Acute lymphoblastic leukemia (ALL) is a hematological malignancy characterized by abnormal proliferation and accumulation of lymphoblasts in the hematopoietic system. Stathmin 1 is a proliferation marker for normal lymphocytes, which has been described as highly expressed in ALL patients and functionally important for leukemia phenotype. In the present study, we expand our previous observations and aim to investigate Stathmin 1 expression and its impact on laboratory features and clinical outcomes in an independent cohort of ALL patients, and to verify the effects of paclitaxel treatment on Stathmin 1 phosphorylation and cell viability in ALL cell lines. In ALL patients, Stathmin 1 expression was significantly increased, associated with lower age onset and positively correlated with white blood cell counts, but did not impact on clinical outcomes. Functional assays revealed that paclitaxel induces Stathmin 1 phosphorylation at serine 16 (an inhibitory site), microtubule stability and apoptosis in Jurkat and Namalwa cell lines. Paclitaxel treatment did not modulate cell viability of normal peripheral blood leukocytes. In conclusion, our data confirm increased levels of Stathmin 1 in ALL patients and that therapeutic doses of paclitaxel inhibits Stathmin 1 function and promote microtubule stability and apoptosis in ALL cells. PMID- 29034343 TI - Regarding the applications of fusion-fluorescence imaging using indocyanine green in laparoscopic hepatectomy. PMID- 29034342 TI - p16(INK4A) expression in invasive laryngeal cancer. AB - We examined p16 expression in tumors from a population-based sample of laryngeal cancer cases diagnosed in the U.S. Samples had been previously genotyped for HPV DNA. Overall, p16 expression was observed in laryngeal tissue from 8 of 101 (7.9%) cases. p16 expression was observed in 2 of 16 (12.5%) cases previously determined to be HPV DNA positive. The two cases dually positive for p16 and HPV DNA were non-keratinizing SCC and papillary SCC tumors that were positive for genotypes 18 and 35/89, respectively. Positivity for p16 and/or HPV DNA was not associated with 5-year survival (log-rank p value= 0.55). Our findings support a limited role of HPV in laryngeal carcinogenesis. p16 is not a reliable surrogate for HPV status in laryngeal cancers and is not a predictor of laryngeal cancer survival. PMID- 29034344 TI - Hemocoagulase might not control but worsen gastrointestinal bleeding in an elderly patient with type II respiratory failure. AB - Hemocoagulase has been successfully used for the management of bleeding in patients undergoing surgery. Local spray of hemocoagulase during endoscopic therapy may be effective for the management of gastrointestinal bleeding. In China, intravenous infusion of hemocoagulase is given by some physicians for the treatment of gastrointestinal bleeding. However, the potential adverse events secondary to hemocoagulase, such as hypofibrinogenemia, are poorly recognized. In this paper, we reported an elderly patient with type II respiratory failure in whom hemocoagulase might induce hypofibrinogenemia and further worsen gastrointestinal bleeding. We highlighted that fibrinogen levels should be cautiously monitored in patients receiving hemocoagulase. PMID- 29034346 TI - Enlarged selection criteria for hepatocellular cancer: is the upper limit needed? AB - Liver transplantation (LT) for hepatocellular carcinoma (HCC) is strategically challenging because the very good mid-term outcomes of this treatment jar with the risk of cancer recurrence. Although Milan criteria (MC) tap the balance on the safe side, they tend to be considered too restrictive and new, enlarged criteria have been conceived in order to enlarge the pool of potential recipients. Some extended criteria are more audacious then others, but they seem to be well tailored on the local reality they are applied to. Being HCC epidemiology and organs availability very variable between regions, a universally valid 'upper limit' is yet to be determinable. PMID- 29034345 TI - The growing impact of alpha-fetoprotein in the field of liver transplantation for hepatocellular cancer: time for a revolution. AB - The role of alpha-fetoprotein (AFP) in the specific setting of the diagnosis and prognosis of patients with hepatocellular cancer (HCC) waiting for liver transplantation (LT) is still controversial. Recently, a marked interest for this marker has been reported, mainly related to its ability to predict the outcome of HCC patients after LT. The growing number of papers in PubMed indicates that AFP has begun a "second life" in the particular context of LT. Looking at the most recent International Guidelines on HCC, it looks obvious that time is ripe to reevaluate the value of AFP in relation to its prognostic ability to identify HCC patients at high-risk for drop-out before and recurrence after LT. Many discrepancies exist worldwide regarding the use of biomarkers in HCC. In contrast to the Western world, AFP is widely used in Asian countries, the reason why being unclear. Indeed, in the (merely Western-dominated) HCC treatment algorithms, the role of AFP as a prognostic tumor marker is still considered to be "under investigation". One should however realize that the underestimation of the value of AFP in the LT context will hamper further refinements of both the liver allograft allocation process and the selection of the best candidates for this procedure. Moreover, AFP has an important role to play in the monitoring of bridging and/or downstaging procedures bringing eventually the patient to transplantation. So, time has come to reconsider the role and value of AFP (dynamics) in the field of transplant oncology. PMID- 29034347 TI - Using a weaning immunosuppression protocol in liver transplantation recipients with hepatocellular carcinoma: a compromise between the risk of recurrence and the risk of rejection? AB - Hepatocellular carcinoma (HCC) recurrence rate after liver transplantation (LT) is still up to 15-20%, despite a careful selection of candidates and optimization of the management within the waiting list. To reduce tumour recurrence, the currently adopted post-transplant strategies are based on the administration of a tailored immunosuppression (IS) regimen. Drug-induced depression of the immune system is essential in preventing graft rejection, however has a well-established association with oncogenesis. The immune system has a key role as a defending mechanism against cancer development, preventing vascular invasion and metastasis. Thus, IS drugs represent one of few modifiable non-oncological risk factors for tumour recurrence. In HCC recipients, a tailored IS therapy, with the aim to minimize drugs' doses, is essential to gain the optimal balance between the risk of rejection and the risk of tumour recurrence. So far, a complete withdrawal of IS drugs after LT is reported to be safely achievable in 25% of patients (defined as "operational tolerant"), without the risk of patient and graft loss. The recent identification of non-invasive "bio-markers of tolerance", which permit to identify patients who could successfully withdraw IS therapies, opens new perspectives in the management of HCC after LT. IS withdrawal could potentially reduce the risk of tumour recurrence, which represents the major drawback in HCC recipients. Herein, we review the current literature on IS weaning in patients who underwent LT for HCC as primary indication and we report the largest experiences on IS withdrawal in HCC recipients. PMID- 29034348 TI - Selection of patients with hepatocellular cancer: a difficult balancing between equity, utility, and benefit. AB - Although liver transplantation (LT) represents the gold-standard strategy for hepatocellular cancer (HCC), its use is circumscribed by several factors like donor shortage, perioperative complications, or competition with other candidates without HCC. Moreover, different alternative approaches like resection or loco regional therapies may be attempted in selected cases. The best option for the treatment of an HCC patient is a complex decision, involving several ethical principles including: equity (horizontal equity and vertical equity or urgency), and utility. These principles influence the different phases of the patient selection process for LT: inscription in the waiting list (WL), deciding upon patient priority and drop-out before LT, allocating the liver donor to the best matched recipient. The best end-point for describing the principle of utility is the "transplant benefit" (TB). This concept expresses the survival gain obtained comparing LT with the best alternative therapies (i.e., difference between life years obtained with and without LT). The TB used with a mid-term time horizon (post-transplant 5-10 years), has the intrinsic potential to reach the dignity of an independent LT selection principle. Thus, the present review investigates the role of organ allocation using a TB model with the intent to introduce equity among patients transplanted having HCC or non-tumoral diseases. PMID- 29034349 TI - Future applications of fusion-fluorescence imaging during laparoscopic procedures. PMID- 29034350 TI - Function-preserving surgery for gastric cancer: current status and future perspectives. AB - The number of early gastric cancer (EGC) cases has been increasing because of improved diagnostic procedures including endoscopy and screening systems. Therefore, function-preserving gastrectomy (FPG) for EGC with the expectation of better quality of life (QOL) after surgery may be increasingly utilized, due to its association with low rate of lymph node metastasis and excellent survival and the possibility of employing less invasive procedures such as laparoscopic gastrectomy in combination. Pylorus-preserving gastrectomy (PPG) with curative intent lymph node dissection is a representative FPG that has been used in EGC, and its superiorities, indications, limitations, and survival benefits have already been reported in several retrospective studies. Laparoscopic proximal gastrectomy (LAPG) has also been employed in EGC of the upper third of the stomach; however, LAPG was found to be associated with major issues in achieving a balance between swallowing and reflux prevention. In patients with EGC in the upper third of the stomach, laparoscopy-assisted subtotal gastrectomy with a preserved, albeit very small, stomach may provide a better QOL and fewer postoperative complications. FPG is recommended as a surgical treatment for EGC if the indication is accurately diagnosed and strictly confirmed; however, these techniques in laparoscopic surgery present technical difficulties to surgeons without a certain degree of skills. Although many retrospective studies revealed the functional benefits or oncological safety with FPG, further prospective studies using large case series are necessary to reveal the value of FPG compared with the conventional procedures. PMID- 29034351 TI - Bridging patients with hepatocellular cancer waiting for liver transplant: all the patients are the same? AB - Liver transplant (LT) is considered the best curative treatment for patients with cirrhosis and hepatocellular carcinoma (HCC) within Milan criteria. The possibility to perform LT in HCC patients is limited by the liver grafts supply; indeed, the shortage of donors often leads to a long time on waiting list and then to dropout because of tumor progression. Bridging therapies are neo-adjuvant treatments given to patients on LT waitlist, with the aim to prevent tumor progression and to reduce dropout rate. Many bridging modalities have been proposed. The choice of each treatment is based on the characteristics of the patient, liver function, comorbidities and on the number, dimensions and localization of HCC. This review article describes several types of bridging therapies, focusing on the indications for different kind of patients. PMID- 29034352 TI - Screening endoscopy for gastric cancer: time for quality control. PMID- 29034354 TI - Prefrontal Connectivity and Glutamate Transmission: Relevance to Depression Pathophysiology and Ketamine Treatment. AB - BACKGROUND: Prefrontal global brain connectivity with global signal regression (GBCr) was proposed as a robust biomarker of depression, and was associated with ketamine's mechanism of action. Here, we investigated prefrontal GBCr in treatment-resistant depression (TRD) at baseline and following treatment. Then, we conducted a set of pharmacological challenges in healthy subjects to investigate the glutamate neurotransmission correlates of GBCr. METHODS: In study A, we used functional magnetic resonance imaging (fMRI) to compare GBCr between 22 TRD and 29 healthy control. Then, we examined the effects of ketamine and midazolam on GBCr in TRD patients 24h post-treatment. In study B, we acquired repeated fMRI in 18 healthy subjects to determine the effects of lamotrigine (a glutamate release inhibitor), ketamine, and lamotrigine-by-ketamine interaction. RESULTS: In study A, TRD patients showed significant reduction in dorsomedial and dorsolateral prefrontal GBCr compared to healthy control. In TRD patients, GBCr in the altered clusters significantly increased 24h following ketamine (effect size = 1.0 [0.3 1.8]), but not midazolam (effect size = 0.5 [-0.6 1.3]). In study B, oral lamotrigine reduced GBCr 2h post-administration, while ketamine increased medial prefrontal GBCr during infusion. Lamotrigine significantly reduced the ketamine-induced GBCr surge. Exploratory analyses showed elevated ventral prefrontal GBCr in TRD and significant reduction of ventral prefrontal GBCr during ketamine infusion in healthy subjects. CONCLUSIONS: This study provides first replication of the ability of ketamine to normalize depression-related prefrontal dysconnectivity. It also provides indirect evidence that these effects may be triggered by the capacity of ketamine to enhance glutamate neurotransmission. PMID- 29034353 TI - The Default Mode Network in Autism. AB - Autism spectrum disorder (ASD) is characterized by deficits in social communication and interaction. Since its discovery as a major functional brain system, the default mode network (DMN) has been implicated in a number of psychiatric disorders, including ASD. Here we review converging multimodal evidence for DMN dysfunction in the context of specific components of social cognitive dysfunction in ASD: 'self-referential processing' - the ability to process social information relative to oneself and 'theory of mind' or 'mentalizing' - the ability to infer the mental states such as beliefs, intentions, and emotions of others. We show that altered functional and structural organization of the DMN, and its atypical developmental trajectory, are prominent neurobiological features of ASD. We integrate findings on atypical cytoarchitectonic organization and imbalance in excitatory-inhibitory circuits, which alter local and global brain signaling, to scrutinize putative mechanisms underlying DMN dysfunction in ASD. Our synthesis of the extant literature suggests that aberrancies in key nodes of the DMN and their dynamic functional interactions contribute to atypical integration of information about the self in relation to 'other', as well as impairments in the ability to flexibly attend to socially relevant stimuli. We conclude by highlighting open questions for future research. PMID- 29034355 TI - Vitreous Disease in Retinoblastoma: Clinical Findings and Treatment. PMID- 29034357 TI - Troponin release following brief myocardial ischemia: apoptosis versus necrosis. PMID- 29034356 TI - Renal Denervation Reduces Pulmonary Vascular Remodeling and Right Ventricular Diastolic Stiffness in Experimental Pulmonary Hypertension. AB - Neurohormonal overactivation plays an important role in pulmonary hypertension (PH). In this context, renal denervation, which aims to inhibit the neurohormonal systems, may be a promising adjunct therapy in PH. In this proof-of-concept study, we have demonstrated in 2 experimental models of PH that renal denervation delayed disease progression, reduced pulmonary vascular remodeling, lowered right ventricular afterload, and decreased right ventricular diastolic stiffness, most likely by suppression of the renin-angiotensin-aldosterone system. PMID- 29034360 TI - DEVELOPING COMPLETE ULTRASONIC MANAGEMENT OF KIDNEY STONES FOR SPACEFLIGHT. AB - Bone demineralization, dehydration, and stasis put astronauts at an increased risk of forming kidney stones in space. The incidence of kidney stones and the potential for a mission-critical event are expected to rise as expeditions become longer and immediate transport to Earth becomes more problematic. At the University of Washington, we are developing an ultrasound-based stone management system to detect stones with S-modeTM ultrasound imaging, break stones with burst wave lithotripsy (BWLTM), and reposition stones with ultrasonic propulsion (UPTM) on Earth and in space. This review discusses the development and current state of these technologies, as well as integration on the flexible ultrasound system sponsored by NASA and the National Space Biomedical Research Institute. PMID- 29034359 TI - The Definition, Rationale, and Effects of Thresholding in OCT Angiography. AB - PURPOSE: To examine the definition, rationale, and effects of thresholding in OCT angiography (OCTA). DESIGN: A theoretical description of OCTA thresholding in combination with qualitative and quantitative analysis of the effects of OCTA thresholding in eyes from a retrospective case series. PARTICIPANTS: Four eyes were qualitatively examined: 1 from a 27-year-old control, 1 from a 78-year-old exudative age-related macular degeneration (AMD) patient, 1 from a 58-year-old myopic patient, and 1 from a 77-year-old nonexudative AMD patient with geographic atrophy (GA). One eye from a 75-year-old nonexudative AMD patient with GA was quantitatively analyzed. MAIN OUTCOME MEASURES: A theoretical thresholding model and a qualitative and quantitative description of the dependency of OCTA on thresholding level. RESULTS: Due to the presence of system noise, OCTA thresholding is a necessary step in forming OCTA images; however, thresholding can complicate the relationship between blood flow and OCTA signal. CONCLUSIONS: Thresholding in OCTA can cause significant artifacts, which should be considered when interpreting and quantifying OCTA images. PMID- 29034361 TI - THE CRITICAL ROLE OF NONHUMAN PRIMATES IN MEDICAL RESEARCH. PMID- 29034358 TI - Acute Kidney Injury Recognition in Low- and Middle-Income Countries. AB - Acute kidney injury (AKI) is increasingly common around the world. Because of the low availability of effective therapies and resource limitations, early preventive and therapeutic measures are essential to decrease morbidity, mortality, and cost. Timely recognition and diagnosis of AKI requires a heightened degree of suspicion in the appropriate clinical and environmental context. In low- and middle-income countries (LMICs), early detection is impaired by limited resources and low awareness. In this article, we report the consensus recommendations of the 18th Acute Dialysis Quality Initiative meeting in Hyderabad, India, on how to improve recognition of AKI. We expect these recommendations will lead to an earlier and more accurate diagnosis of AKI, and improved research to promote a better understanding of the epidemiology, etiology, and histopathology of AKI in LMICs. PMID- 29034363 TI - Nocebo effects in clinical studies: hints for pain therapy. AB - INTRODUCTION: Nocebo-induced algesic responses occurring within clinical contexts present a challenge for health care practitioners working in the field of pain medicine. OBJECTIVES: Following the recent research on algesic nocebo effects, the scope of this review is to develop ethically acceptable strategies to help avoid, or at least reduce, nocebo responses within clinical settings. METHODS: We reviewed relevant clinical studies that depict how patient-practitioner interactions may contribute to the reduction of nocebo responses. RESULTS: A strong algesic nocebo effect may adversely impact a patient's condition by causing decreases in both the efficacy and effectiveness of interventions, as well as by promoting treatment nonadherence and discontinuation. These effects may be triggered through multiple channels and can lead to significant alterations in a patient's perception of pain, consequently producing a weakening of the specific positive effects of pharmacological, psychological, or physical pain-management interventions. CONCLUSION: To minimize nocebo effects in clinical settings, we identified and discussed five contextual aspects relevant to the treatment of patients with chronic pain: (1) negative patient-clinician communication and interaction during treatment; (2) emotional burden of patients during treatment with analgesic medication; (3) negative information provided via informational leaflets; (4) cued and contextual conditioning nocebo effects; and (5) patient's lack of positive information. Through an understanding of these elements, many preventive and ethically acceptable clinical actions can be taken to improve multidisciplinary pain treatment outcomes. PMID- 29034362 TI - Lipid droplets, potential biomarker and metabolic target in glioblastoma. AB - Lipid droplets (LDs) are subcellular organelles that store large amounts of the neutral lipids, triglycerides (TG) and/or cholesteryl esters (CE). LDs are commonly formed in adipocytes, liver cells and macrophages, and their formation has been shown to be associated with the progression of metabolic diseases, i.e., obesity, fatty liver and atherosclerosis. Interestingly, LDs are also found in some tumor tissues. We recently showed that LDs are prevalent in glioblastoma (GBM), the most deadly brain tumor, but are not detectable in low-grade gliomas and normal brain tissues, suggesting that LDs may serve as a novel diagnostic biomarker for GBM. This short review will briefly introduce LD biology, summarize recent observations about LDs in several types of cancer tissues, and discuss LD formation in GBM. Moreover, we will highlight the role of SOAT1 (sterol-O transferase 1), a key enzyme regulating CE synthesis and LD formation in GBM, in the regulation of SREBP (sterol regulatory-element binding protein) activation. The therapeutic potential of LDs and SOAT1 will be discussed. PMID- 29034364 TI - Microenvironmental agonists generate de novo phenotypic resistance to combined ibrutinib plus venetoclax in CLL and MCL. AB - De novo resistance and rapid recurrence often characterize responses of B-cell malignancies to ibrutinib (IBR), indicating a need to develop drug combinations that block compensatory survival signaling and give deeper, more durable responses. To identify such combinations, we previously performed a combinatorial drug screen and identified the Bcl-2 inhibitor venetoclax (VEN) as a promising partner for combination with IBR in Mantle Cell Lymphoma (MCL). We have opened a multi-institutional clinical trial to test this combination. However, analysis of primary samples from patients with MCL as well as chronic lymphocytic leukemia (CLL) revealed unexpected heterogeneous de novo resistance even to the IBR+VEN combination. In the current study, we demonstrate that resistance to the combination can be generated by microenvironmental agonists: IL-10, CD40L and, most potently, CpG-oligodeoxynucleotides (CpG-ODN), which is a surrogate for unmethylated DNA and a specific agonist for TLR9 signaling. Incubation with these agonists caused robust activation of NF-kappaB signaling, especially alternative NF-kappaB, which led to enhanced expression of the anti-apoptotic proteins Mcl-1, Bcl-xL, and survivin, thus decreasing dependence on Bcl-2. Inhibitors of NF kappaB signaling blocked overexpression of these anti-apoptotic proteins and overcame resistance. Inhibitors of Mcl-1, Bcl-xL, or survivin also overcame this resistance, and showed synergistic benefit with the IBR+VEN combination. We conclude that microenvironmental factors, particularly the TLR9 agonist, can generate de novo resistance to the IBR+VEN combination in CLL and MCL cells. This signaling pathway presents targets for overcoming drug resistance induced by extrinsic microenvironmental factors in diverse B-cell malignancies. PMID- 29034365 TI - Ethnicity, sex, and age are determinants of red blood cell storage and stress hemolysis: results of the REDS-III RBC-Omics study. AB - Genetic polymorphisms in blood donors may contribute to donor-specific differences in the survival of red blood cells (RBCs) during cold storage and after transfusion. Genetic variability is anticipated to be high in donors with racial admixture from malaria endemic regions such as Africa and Asia. The purpose of this study was to test the hypothesis that donor genetic background, reflected by sex and self-reported ethnicity, significantly modulates RBC phenotypes in storage. High throughput hemolysis assays were developed and used to evaluate stored RBC samples from 11 115 African American, Asian, white, and Hispanic blood donors from 4 geographically diverse regions in the United States. Leukocyte-reduced RBC concentrate-derived samples were stored for 39 to 42 days (1-6 degrees C) and then evaluated for storage, osmotic, and oxidative hemolysis. Male sex was strongly associated with increased susceptibility to all 3 hemolysis measures (P < .0001). African American background was associated with resistance to osmotic hemolysis compared with other racial groups (adjusted P < .0001). Donor race/ethnicity was also associated with extreme (>1%) levels of storage hemolysis exceeding US Food and Drug Administration regulations for transfusion (hemolysis >1% was observed in 3.51% of Asian and 2.47% of African American donors vs 1.67% of white donors). These findings highlight the impact of donor genetic traits on measures of RBC hemolysis during routine cold storage, and they support current plans for genome-wide association studies, which may help identify hereditable variants with substantive effects on RBC storage stability and possibly posttransfusion outcomes. PMID- 29034367 TI - Physical Exercise Interventions for Drug Addictive Disorders. PMID- 29034368 TI - Solar-Driven Thermochemical Splitting of CO2 and In Situ Separation of CO and O2 across a Ceria Redox Membrane Reactor. AB - Splitting CO2 with a thermochemical redox cycle utilizes the entire solar spectrum and provides a favorable path to the synthesis of solar fuels at high rates and efficiencies. However, the temperature/pressure swing commonly applied between reduction and oxidation steps incurs irreversible energy losses and severe material stresses. Here, we experimentally demonstrate for the first time the single-step continuous splitting of CO2 into separate streams of CO and O2 under steady-state isothermal/isobaric conditions. This is accomplished using a solar-driven ceria membrane reactor conducting oxygen ions, electrons, and vacancies induced by the oxygen chemical potential gradient. Guided by the limitations imposed by thermodynamic equilibrium of CO2 thermolysis, we operated the solar reactor at 1,600 degrees C, 3.10-6 bar [Formula: see text] and 3,500 suns radiation, yielding total selectivity of CO2 to CO + 1/2O2 with a conversion rate of 0.024 MUmol.s-1 per cm2 membrane. The dynamics of the oxygen vacancy exchange, tracked by GC and XPS, further validated stable fuel production. PMID- 29034366 TI - A phase 2 study incorporating sorafenib into the chemotherapy for older adults with FLT3-mutated acute myeloid leukemia: CALGB 11001. AB - The Cancer and Leukemia Group B (CALGB), now part of the Alliance for Clinical Trials in Oncology, conducted a multicenter, single-arm, phase 2 study in patients >=60 years with FMS-like tyrosine kinase 3 (FLT3)-mutated acute myeloid leukemia (AML). In this study, sorafenib was added to daunorubicin and cytarabine based induction and consolidation chemotherapy and was also continued for 12 months of maintenance therapy. The primary end point of the study was overall survival (OS) at 1 year in the FLT3 internal tandem duplication (FLT3-ITD) cohort. Fifty-four patients with a median age of 67 years (range, 60.3-82.7 years) were enrolled; 39 were FLT3-ITD patients (71%) and 15 were FLT3-TKD (29%) patients. The observed 1-year OS (95% confidence interval [CI]) was 62% (45%-78%) for the FLT3-ITD patients (meeting the primary end point 62% vs 30% for a historical control group, P < .0001) and 71% (42%-92%) for the FLT3-TKD patients. The median disease-free survival and OS were 12.2 months (95% CI, 5-16.9) and 15.0 months (95% CI, 10.4-20.1), respectively, in the FLT3-ITD group and 9.6 (95% CI, 1.9 to not available [NA]) and 16.2 months (95% CI, 5.0 to NA) for the FLT3 TKD group. This study suggests that the addition of sorafenib to chemotherapy for FLT3-ITD AML is feasible and may improve the survival of older adults with FLT3 mutated AML. This trial was registered at www.clinicaltrials.gov as #NCT01253070. PMID- 29034369 TI - Alpha 1 Microglobulin: A Potentially Paradoxical Anti-Oxidant Agent. AB - Alpha 1 microglobulin is a low molecular weight heme binding antioxidant protein with interesting, and potentially important, clinical applications. However, much remains to be learned about its in vivo effects. This invited review raises a number of physiologic issues regarding this compound as it pertains to clinical use. PMID- 29034370 TI - A Robust Energy Minimization Algorithm for MS-Lesion Segmentation. AB - The detection of multiple sclerosis lesion is important for many neuroimaging studies. In this paper, a new automatic robust algorithm for lesion segmentation based on MR images is proposed. This method takes full advantage of the decomposition of MR images into the true image that characterizes a physical property of the tissues and the bias field that accounts for the intensity inhomogeneity. An energy function is defined in term of the property of true image and bias field. The energy minimization is proposed for seeking the optimal segmentation result of lesions and white matter. Then postprocessing operations is used to select the most plausible lesions in the obtained hyperintense signals. The experimental results show that our approach is effective and robust for the lesion segmentation. PMID- 29034371 TI - Assessing Behavioral Stages From Social Media Data. AB - Important work rooted in psychological theory posits that health behavior change occurs through a series of discrete stages. Our work builds on the field of social computing by identifying how social media data can be used to resolve behavior stages at high resolution (e.g. hourly/daily) for key population subgroups and times. In essence this approach opens new opportunities to advance psychological theories and better understand how our health is shaped based on the real, dynamic, and rapid actions we make every day. To do so, we bring together domain knowledge and machine learning methods to form a hierarchical classification of Twitter data that resolves different stages of behavior. We identify and examine temporal patterns of the identified stages, with alcohol as a use case (planning or looking to drink, currently drinking, and reflecting on drinking). Known seasonal trends are compared with findings from our methods. We discuss the potential health policy implications of detecting high frequency behavior stages. PMID- 29034372 TI - Denoising Diffusion-Weighted Images Using Grouped Iterative Hard Thresholding of Multi-Channel Framelets. AB - Noise in diffusion-weighted (DW) images increases the complexity of quantitative analysis and decreases the reliability of inferences. Hence, to improve analysis, it is often desirable to remove noise and at the same time preserve relevant image features. In this paper, we propose a tight wavelet frame based approach for edge-preserving denoising of DW images. Our approach (i) employs the unitary extension principle (UEP) to generate frames that are discrete analogues to differential operators of various orders; (ii) introduces a very efficient method for solving an l0 denoising problem that involves only thresholding and solving a trivial inverse problem; and (iii) groups DW images acquired with neighboring gradient directions for collaborative denoising. Experiments using synthetic data with noncentral chi noise and real data with repeated scans confirm that our method yields superior performance compared with denoising using state-of-the-art methods such as non-local means. PMID- 29034373 TI - Guiding AKI Prevention Using Biomarkers. PMID- 29034374 TI - Suicide Attempts among Latinas who Experienced Early Sex Were Largely Mediated by Substance Abuse. AB - The purpose of this study was to describe the role of substance abuse as a mediating factor between early sexual experiences and suicide attempts among adult Latinas. In our study participants (n=158), nearly 15% had attempted suicide and 39% experienced their first sexual encounter at an age of 15 or younger (referred to hereafter as "early sex"). Latinas who experienced early sex were more likely to attempt suicide [OR=2.4, p<0.05], and this relationship was largely mediated by substance abuse. An early sexual debut may indicate an environmental adversity on the child that calls for long term intervention for prevention of substance abuse as well as promotion of psychological well-being later in life. PMID- 29034375 TI - Extracting Drug-Drug Interactions with Word and Character-Level Recurrent Neural Networks. AB - Drug-drug interactions (DDIs) are known to be responsible for nearly a third of all adverse drug reactions. Hence several current efforts focus on extracting signal from EMRs to prioritize DDIs that need further exploration. To this end, being able to extract explicit mentions of DDIs in free text narratives is an important task. In this paper, we explore recurrent neural network (RNN) architectures to detect and classify DDIs from unstructured text using the DDIExtraction dataset from the SemEval 2013 (task 9) shared task. Our methods are in line with those used in other recent deep learning efforts for relation extraction including DDI extraction. However, to our knowledge, we are the first to investigate the potential of character-level RNNs (Char-RNNs) for DDI extraction (and relation extraction in general). Furthermore, we explore a simple but effective model bootstrapping method to (a). build model averaging ensembles, (b). derive confidence intervals around mean micro-F scores (MMF), and (c). assess the average behavior of our methods. Without any rule based filtering of negative examples, a popular heuristic used by most earlier efforts, we achieve an MMF of 69.13. By adding simple replicable heuristics to filter negative instances we are able to achieve an MMF of 70.38. Furthermore, our best ensembles produce micro F-scores of 70.81 (without filtering) and 72.13 (with filtering), which are superior to metrics reported in published results. Although Char-RNNs turnout to be inferior to regular word based RNN models in overall comparisons, we find that ensembling models from both architectures results in nontrivial gains over simply using either alone, indicating that they complement each other. PMID- 29034376 TI - Exploring the Pregnant Guinea Pig as a Model for Group B Streptococcus Intrauterine Infection. AB - Infection of the amniotic cavity remains a major cause of preterm birth, stillbirth, fetal injury and early onset, fulminant infections in newborns. Currently, there are no effective therapies to prevent in utero infection and consequent co-morbidities. This is in part due to the lack of feasible and appropriate animal models to understand mechanisms that lead to in utero infections. Use of mouse and rat models do not fully recapitulate human pregnancy, while pregnant nonhuman primate models are limited by ethical considerations, technical constraints, and cost. Given these limitations, the guinea pig is an attractive animal model for studying pregnancy infections, particularly as the placental structure is quite similar to the human placenta. Here, we describe our studies that explored the pregnant guinea pig as a model to study in utero Group B Streptococci (GBS) infections. We observed that intrauterine inoculation of wild type GBS in pregnant guinea pigs resulted in bacterial invasion and dissemination to the placenta, amniotic fluid and fetal organs. Also, hyperhemolytic GBS such as those lacking the hemolysin repressor CovR/S showed increased dissemination into the amniotic fluid and fetal organs such as the fetal lung and brain. These results are similar to those observed in mouse and non-human primate models of in utero infection, and support use of the guinea pig as a model for studying GBS infections in pregnancy. PMID- 29034377 TI - Breaking BAD: A Data Serving Vision for Big Active Data. AB - Virtually all of today's Big Data systems are passive in nature. Here we describe a project to shift Big Data platforms from passive to active. We detail a vision for a scalable system that can continuously and reliably capture Big Data to enable timely and automatic delivery of new information to a large pool of interested users as well as supporting analyses of historical information. We are currently building a Big Active Data (BAD) system by extending an existing scalable open-source BDMS (AsterixDB) in this active direction. This first paper zooms in on the Data Serving piece of the BAD puzzle, including its key concepts and user model. PMID- 29034378 TI - Editorial: We can do more: The role of dentists extends beyond traditional dentistry. PMID- 29034379 TI - Medical malpractice: An introduction for the dental practitioner. AB - With the plethora of medical malpractice claims, health care providers are forced to deal not only with medical matters but also with legal issues. Thus, unfortunately, every time health care providers give a medical treatment, they should be aware of the legal implications of their act. Most medical malpractice cases will be resolved in civil law and will have financial implications, but in extreme cases (such as causing death by negligence) criminal procedure may also be conducted, meaning criminal sanctions (imprisonment or fine). This paper is intended to provide dental practitioners with an introduction to basic legal knowledge and concepts regarding medical malpractice law along with a short legal overview regarding the liability regime in different countries. The paper focuses on tort law and the meaning of "negligence," reviewing the main different liability regimes that exist and the legal elements that must be proven in each regime in order to receive compensation. In an era of increase in medical malpractice law suits, it is essential that physicians and dental professionals recognize the basic legal concepts of medical malpractice. PMID- 29034381 TI - The first anion-exchange membrane fuel cell to exceed 1 W cm-2 at 70 degrees C with a non-Pt-group (O2) cathode. AB - Anion-exchange membrane fuel cells face two challenges: performance and durability. Addressing the first, we demonstrate high performance with both O2 and CO2-free air supplies, even when using a Ag/C cathode. This was enabled by the development of a radiation-grafted anion-exchange membrane that was less than 30 MUm thick when hydrated. PMID- 29034380 TI - The immobilization of antibiotic-loaded polymeric coatings on osteoarticular Ti implants for the prevention of bone infections. AB - Implant-associated infections in orthopaedic surgeries are very critical as they may hinder bone healing, cause implant failure and even progress to osteomyelitis. Drug-eluting implants for local delivery of antibiotics at surgical sites are thought to be promising in preventing infections. Herein, the antibiotic vancomycin was encapsulated in a poly(ethylene glycol) (PEG)-based hydrogel film that was covalently bound to Ti implants and subsequently covered by a PEG-poly(lactic-co-caprolactone) (PEG-PLC) membrane. Additionally, crosslinked starch (CSt) was mixed with the hydrogel because its porous microstructure is able to inhibit hydrogel swelling and thus slow down drug release. The release behavior could be regulated by the drug loading and the coating thickness. The vancomycin-loaded Ti implants showed no initial burst release, offering a sustained drug release for nearly 3 weeks in vitro and more than 4 weeks in vivo. In a rabbit model of S. aureus infection, the implants with a 4 mg vancomycin loading significantly reduced the inflammatory reaction and exhibited a good antimicrobial capability. The immobilization of the antibiotic loaded polymeric coatings on orthopaedic implants can offer a sustainable drug release with no initial burst release and maintain an effective concentration for a longer time, so it is expected to be an effective strategy to treat and prevent local bone infections. PMID- 29034382 TI - Environmental photochemistry of dienogest: phototransformation to estrogenic products and increased environmental persistence via reversible photohydration. AB - Potent trienone and dienone steroid hormones undergo a coupled photohydration (in light)-thermal dehydration (in dark) cycle that ultimately increases their environmental persistence. Here, we studied the photolysis of dienogest, a dienone progestin prescribed as a next-generation oral contraceptive, and used high resolution mass spectrometry and both 1D and 2D nuclear magnetic resonance spectroscopy to identify its phototransformation products. Dienogest undergoes rapid direct photolysis (t1/2 ~ 1-10 min), forming complex photoproduct mixtures across the pH range examined (pH 2 to 7). Identified products include three photohydrates that account for ~80% of the converted mass at pH 7 and revert back to parent dienogest in the absence of light. Notably, we also identified two estrogenic compounds produced via the A-ring aromatization of dienogest, evidence for a photochemically-induced increase in estrogenic activity in product mixtures. These results imply that dienogest will undergo complete and facile photolytic transformation in sunlit surface water, yet exhibit greater environmental persistence than might be anticipated by inspection of kinetic rates. Photoproduct mixtures also include transformation products with different nuclear receptor binding capabilities than the parent compound dienogest. These outcomes reveal a dynamic fate and biological risk profile for dienogest that must also take into account the composition and endocrine activity of its transformation products. Collectively, this study further illustrates the need for more holistic regulatory, risk assessment, and monitoring approaches for high potency synthetic pharmaceuticals and their bioactive transformation products. PMID- 29034383 TI - Ca-Embedded C2N: an efficient adsorbent for CO2 capture. AB - Carbon dioxide as a greenhouse gas causes severe impacts on the environment, whereas it is also a necessary chemical feedstock that can be converted into carbon-based fuels via electrochemical reduction. To efficiently and reversibly capture CO2, it is important to find novel materials for a good balance between adsorption and desorption. In this study, we performed first-principles calculations and grand canonical Monte Carlo (GCMC) simulations, to systematically study metal-embedded carbon nitride (C2N) nanosheets for CO2 capture. Our first-principles results indicated that Ca atoms can be uniformly trapped in the cavity center of C2N structure, while the transition metals (Sc, Ti, V, Cr, Mn, Fe, Co) are favorably embedded in the sites off the center of the cavity. The determined maximum number of CO2 molecules with strong physisorption showed that Ca-embedded C2N monolayer is the most promising CO2 adsorbent among all considered metal-embedded materials. Moreover, GCMC simulations revealed that at room temperature the gravimetric density for CO2 adsorbed on Ca-embedded C2N reached 50 wt% at 30 bar and 23 wt% at 1 bar, higher than other layered materials, thus providing a satisfactory system for the CO2 capture and utilization. PMID- 29034384 TI - Phase formation and stability of Ag-60 at%Cu alloy nanoparticles synthesized by chemical routes in aqueous media. AB - The present work reports the nature of the evolution of an array of nanoparticles during the synthesis of alloy nanoparticles of Ag-60 at%Cu by the co-reduction of metal salt precursors using NaBH4 in an aqueous medium. This was achieved by studying samples extracted at different intervals of time from the reaction bath. The microstructural characterization reveals that at the initial stage of synthesis, a single-phase solid solution of alloy nanoparticles of very small sizes was formed; however, as the reaction time increases, a network of chains of nanoparticles evolves containing particles rich in either Ag or Cu. Keeping the particles in the reaction bath for a longer time, the chemistry of the network changes further with the chain containing an Ag-rich core and Cu2O as the shell. In the present study, we tried to rationalize the evolution of the phases from the observed results. PMID- 29034385 TI - Multivariate characterization of salt and fat content, and the fatty acid profile of pastry and bakery products. AB - Bakery and pastry products are highly appreciated worldwide. Due to consumer demand, a wide diversity of this type of food is available all over the world. The aim of this study was to evaluate the content of salt, fat and fatty acids in the composition of 91 bakery and pastry products commercialised in Portugal. Moreover, a detailed comparison between commercial and supermarket brands of similar foods, as well as between foods with or without gluten was performed. The obtained results allowed us to conclude that most of the analysed foods have a high percentage of saturated fatty acids. Also, considerable amounts of salt were determined, while the trans fatty acid content in the analysed foods was in general low (<0.5%). Moreover, differences in the salt content higher than 6-fold between brands of the same type of foodstuff were observed, which should be considered at the moment of choice. This fact proves that it is possible to produce similar foods which are healthier with better nutritional quality. Since this type of food is highly appreciated by people of all ages, but mostly by children and young people, it is of utmost importance to implement strategies and establish goals, to improve their nutritional quality. PMID- 29034386 TI - Auxeticity enhancement due to size polydispersity in fcc crystals of hard-core repulsive Yukawa particles. AB - The Poisson's ratio of the fcc hard-core repulsive Yukawa crystals with size polydispersity was determined by Monte Carlo simulations in the isothermal isobaric ensemble. The effect of size polydispersity on the auxetic properties of Yukawa crystals has been studied. It has been found that an increase of particle size polydispersity causes a decrease of the Poisson's ratio in auxetic directions as well as appearance of a negative Poisson's ratio in formerly non auxetic directions. A measure of auxeticity was introduced to estimate quantitatively an enhancement of auxetic properties in polydisperse Yukawa crystals. The proposed measure of auxeticity can be applied to appraise the auxeticity of any studied system. PMID- 29034387 TI - Theoretical design and mechanistic study of the metal-free reduction of CO2 to CO. AB - A strategy for the reduction of CO2 to CO by or catalyzed by metal-free silylboranes has been proposed with the aid of density functional theory (DFT) computations. We showed that one oxygen atom of CO2 can be abstracted by silylboranes without catalysts or by diboranes in the presence of silylborane catalysts with surprisingly low free-energy barriers so that the reaction can be realized under mild experimental conditions. To achieve this, the reduction mechanism of CO2 by a hierarchy of silylboranes (R1)2BSi(R2)3 was systematically investigated. Several rules of thumb were obtained to guide the design of silylboranes with high activity toward CO2 reduction. After considering many factors, such as side reactions, the stability of the silylboranes, and the solvent effect, two silylboranes, (PFP)2BSi(CH2F)3 and Me2BSi(CH2F)3, suitable for the reduction of CO2 under mild experimental conditions were designed. The overall free-energy barriers for the reduction of CO2 by the two silylboranes are just 26.1-27.0 kcal mol-1 and 28.1-28.9 kcal mol-1, respectively, at 298.15 K in solution. We further showed that CO2 can be reduced to CO by diborane Me2BBMe2 using Me2BSi(CH2F)3 as the catalyst. The overall free-energy barrier for this catalytic reaction is just 30.6-30.7 kcal mol-1 at 298.15 K in solution. PMID- 29034388 TI - Probing properties of molecule-based interface systems: general discussion and Discussion of the Concluding Remarks. PMID- 29034389 TI - High-performance supercapacitors of Cu-based porous coordination polymer nanowires and the derived porous CuO nanotubes. AB - Electrode materials for supercapacitors with one-dimensional porous nanostructures, such as nanowires and nanotubes, are very attractive for high efficiency storage of electrochemical energy. Herein, ultralong Cu-based porous coordination polymer nanowires (copper-l-aspartic acid) were used as the electrode material for supercapacitors, for the first time. The as-prepared material exhibits a high specific capacitance of 367 F g-1 at 0.6 A g-1 and excellent cycling stability (94% retention over 1000 cycles). Moreover, porous CuO nanotubes were successfully fabricated by the thermal decomposition of this nanowire precursor. The CuO nanotube exhibits good electrochemical performance with high rate capacity (77% retention at 12.5 A g-1) and long-term stability (96% retention over 1000 cycles). The strategy developed here for the synthesis of porous nanowires and nanotubes can be extended to the construction of other electrode materials for more efficient energy storage. PMID- 29034390 TI - Molecular assembly at surfaces: progress and challenges. AB - Molecules provide versatile building blocks, with a vast palette of functionalities and an ability to assemble via supramolecular and covalent bonding to generate remarkably diverse macromolecular systems. This is abundantly displayed by natural systems that have evolved on Earth, which exploit both supramolecular and covalent protocols to create the machinery of life. Importantly, these molecular assemblies deliver functions that are reproducible, adaptable, finessed and responsive. There is now a real need to translate complex molecular systems to surfaces and interfaces in order to engineer 21st century nanotechnology. 'Top-down' and 'bottom-up' approaches, and utilisation of supramolecular and covalent assembly, are currently being used to create a range of molecular architectures and functionalities at surfaces. In parallel, advanced tools developed for interrogating surfaces and interfaces have been deployed to capture the complexities of molecular behaviour at interfaces from the nanoscale to the macroscale, while advances in theoretical modelling are delivering insights into the balance of interactions that determine system behaviour. A few examples are provided here that outline molecular behaviour at surfaces, and the level of complexity that is inherent in such systems. PMID- 29034391 TI - Glycerol as a source of designer solvents: physicochemical properties of low melting mixtures containing glycerol ethers and ammonium salts. AB - In this work we report the preparation of mixtures of several alkyl glyceryl ethers, as hydrogen bond donor compounds, with two ammonium salts, choline chloride and N,N,N-triethyl-2,3-dihydroxypropan-1-aminium chloride. The stability of the mixtures at different molar ratios and temperatures has been evaluated in order to determine the formation of low melting mixtures. Liquid and stable mixtures have been characterized and their physico-chemical properties such as density, viscosity, refractive index, conductivity and surface tension have been measured in the temperature range of 293.15 K to 343.15 K. Comparison of the mixtures prepared herein with the ones containing glycerol and choline chloride evidences the possibility of tuning the physico-chemical properties by changing the substitution pattern in the hydrogen bond donor compound or in the ammonium salt, thus broadening the scope of application of these mixtures. PMID- 29034392 TI - New dimensions in salt-solvent mixtures: a 4th evolution of ionic liquids. AB - In the field of ionic liquids (ILs) it has long been of fundamental interest to examine the transition from salt-in-solvent behaviour to pure liquid-salt behaviour, in terms of structures and properties. At the same time, a variety of applications have beneficially employed IL-solvent mixtures as media that offer an optimal set of properties. Their properties in many cases can be other than as expected on the basis of simple mixing concepts. Instead, they can reflect the distinct structural and interaction changes that occur as the mixture passes through the various stages from pure coulombic medium, to "plasticised" coulombic medium, into a meso-region where distinct molecular and ionic domains can co exist. Such domains can persist to quite a high dilution into the salt-in-solvent regime and their presence manifests itself in a number of important synergistic interaction effects in diverse areas such as membrane transport and corrosion protection. Similarly, the use of ionic liquids in synthetic processes where there is a significant volume fraction of molecular species present can produce a variety of distinct and unexpected effects. The range of these salt-solvent mixtures is considerably broader than just those based on ionic liquids, since there is only minor value in the pure salt being a liquid at the outset. In other words, the extensive families of organic and metal salts become candidates for study and use. Our perspective then is of an evolution of ionic liquids into a broader field of fundamental phenomena and applications. This can draw on an even larger family of tuneable salts that exhibit an exciting combination of properties when mixed with molecular liquids. PMID- 29034394 TI - A calibrated UV-LED based light source for water purification and characterisation of photocatalysis. AB - Photocatalysis has a potential to become a cost effective industrial process for water cleaning. One of the most studied photocatalysts is titanium dioxide which, as a wide band gap semiconductor, requires ultraviolet (UV) light for its photoactivation. This is at the wavelengths where the efficiency of present-day light emitting diodes (LEDs) decreases rapidly, which presents a challenge in the use of UV-LEDs for commercially viable photocatalysis. There is also a need for accurate photocatalysis measurement of remediation rates of water-borne contaminants for determining optimum exposure doses in industrial applications. In response to these challenges, this paper describes a UV-LED based photocatalytic test reactor that provides a calibrated adjustable light source and pre-defined test conditions to remove as many sources of uncertainty in photocatalytic analysis as possible and thereby improve data reliability. The test reactor provides a selectable intensity of up to 1.9 kW m-2 at the photocatalyst surface. The comparability of the results is achieved through the use of pre-calibration and control electronics that minimize the largest sources of uncertainty; most notably variations in the intensity and directionality of the UV light emission of LEDs and in LED device heating. PMID- 29034393 TI - Centrifugal micropipette-tip with pressure signal readout for portable quantitative detection of myoglobin. AB - This paper describes a centrifugal micropipette-tip method for ELISA sample processing combined with a pressure meter for portable quantitative detection of acute myocardial infarction (AMI) biomarker myoglobin (Myo). The method enables sensitive and reliable quantification of Myo in 35 minutes. With the advantages of simplicity, speed, user friendliness, low cost, and small sample consumption, centrifugal micropipette-tip ELISA shows great potential for quantitative POC diagnostics for AMI. PMID- 29034395 TI - A platinum catalyst deposited on a zirconia support for the design of lithium oxygen batteries with enhanced cycling ability. AB - A platinum catalyst supported on zirconia is proposed as a cathode in lithium oxygen batteries. Experimental and theoretical studies show that zirconia suppresses the side-reactions of the intermediate (O2-) and the final product (Li2O2) by the stabilization of their reactivity. Thus, it is able to enhance the reversibility during charge/discharge in lithium-oxygen batteries. PMID- 29034396 TI - Defined pH-sensitive nanogels as gene delivery platform for siRNA mediated in vitro gene silencing. AB - In the present study, a pH sensitive nanogel platform for gene delivery was developed. The cationic nanogels based on dendritic polyglycerol (dPG) and low molecular weight polyethylenimine units were able to encapsulate siRNA during the manufacturing process. The thiol-Michael nanoprecipitation method, which operates under mild conditions and did not require any catalyst or surfactant, was used to develop tailor-made nanogels in the sub-100 nm range. The incorporation of pH sensitive benzacetal-bonds inside the nanogel network enables the controlled intracellular release of the cargo. The functionality to transport therapeutic biomolecules was tested by an in vitro GFP-siRNA transfection assay. Encapsulated siRNA could silence GFP expressing HeLa cells (up to 71% silencing in GFP). Furthermore, significantly reduced toxicity of the nanogel platform compared to the non-degradable PEI was observed. These properties realize a new carrier platform in the field of gene therapy. PMID- 29034397 TI - Electrically tunable tunneling rectification magnetoresistance in magnetic tunneling junctions with asymmetric barriers. AB - The development of multifunctional spintronic devices requires simultaneous control of multiple degrees of freedom of electrons, such as charge, spin and orbit, and especially a new physical functionality can be realized by combining two or more different physical mechanisms in one specific device. Here, we report the realization of novel tunneling rectification magnetoresistance (TRMR), where the charge-related rectification and spin-dependent tunneling magnetoresistance are integrated in Co/CoO-ZnO/Co magnetic tunneling junctions with asymmetric tunneling barriers. Moreover, by simultaneously applying direct current and alternating current to the devices, the TRMR has been remarkably tuned in the range from -300% to 2200% at low temperature. This proof-of-concept investigation provides an unexplored avenue towards electrical and magnetic control of charge and spin, which may apply to other heterojunctions to give rise to more fascinating emergent functionalities for future spintronics applications. PMID- 29034398 TI - Structural discontinuity induced surface second harmonic generation in single, thin zinc-blende GaAs nanowires. AB - We investigate optical second harmonic generation (SHG) from individual self catalyzed zinc-blende (ZB) GaAs nanowires (NWs), where the polarimetry strongly depends on the NW diameter. We report a direct observation on the SHG induced by surface nonlinear susceptibilities in a single, ultra-thin GaAs NW. By considering the contributions from both optical field and structural discontinuities in our theoretical model, we can well explain the optical SHG polarimetry from NWs with different diameters. We also show that the optical in coupling coefficient arising from the depolarization electromagnetic field can determine the polarization of the SHG. The results open perspectives for further geometry-based studies on the origin and control of SHG in small nanostructures. PMID- 29034399 TI - In situ growth of cobalt@cobalt-borate core-shell nanosheets as highly-efficient electrocatalysts for oxygen evolution reaction in alkaline/neutral medium. AB - Development of efficient non-noble metal electrocatalysts for oxygen evolution reaction (OER) is still a crucial issue for renewable energy technologies. Herein, we report a core-shell-like catalyst of amorphous cobalt borate nanosheets grown on metallic cobalt deposited on Ti-mesh (Co@Co-Bi/Ti) by an in situ conversion strategy. Benefiting from the high activity, large surface area of Co-Bi nanosheets, outstanding electronic conductivity of metallic Co and the 3D structure inherited from Ti-mesh substrate, Co@Co-Bi/Ti shows high OER activity with a relatively small overpotential of 329 mV to obtain a current density of 10 mA cm-2, a low Tafel slope of 46 mV dec-1 and an accessible large current density of 500 mA cm-2 in alkaline solution. Besides, Co@Co-Bi/Ti exhibits good performance in a near-neutral medium. This study provides an effective pathway to improve the cobalt metal based materials. PMID- 29034400 TI - Preparing macromolecular systems on surfaces: general discussion. PMID- 29034401 TI - Metal fluoride nanotubes featuring square-planar building blocks in a high pressure polymorph of AgF2. AB - At a pressure of ca. 15 GPa, AgF2 transforms to an unprecedented orthorhombic polymorph featuring an array of tubular subunits which are built of corner sharing [AgF4] squares. This seems to be the first type of a metal fluoride nanowire and also the only one showing rigid square planar rather than common hexagonal or octahedral moieties. PMID- 29034402 TI - Nanoprocess and nanoscale surface functionalization on cathode materials for advanced lithium-ion batteries. AB - Nanotechnology-driven development of cathode materials is an essential part to revolutionize the evolution of the next generation lithium ion batteries. With the progress of nanoprocess and nanoscale surface modification investigations on cathode materials in recent years, the advanced battery technology future seems very promising - Thanks to nanotechnology. In this review, an overview of promising nanoscale surface deposition methods and their significance in surface functionalization on cathodes is extensively summarized. Surface modified cathodes are provided with a protective layer to overcome the electrochemical performance limitations related to side reactions with electrolytes, reduce self discharge reactions, improve thermal and structural stability, and further enhance the overall battery performance. The review addresses the importance of nanoscale surface modification on battery cathodes and concludes with a comparison of the different nanoprocess techniques discussed to provide a direction in the race to build advanced lithium-ion batteries. PMID- 29034403 TI - Customised spatiotemporal temperature gradients created by a liquid metal enabled vortex generator. AB - Generating customised temperature gradients in miniaturised flow-free liquid chambers is challenging due to the dominance of diffusion. Inducing internal flows in the form of vortices is an effective strategy for overcoming the limitations of diffusion in such environments. Vortices can be produced by applying pressure, temperature and electric potential gradients via miniaturised actuators. However, the difficulties associated with the fabrication, integration, maintenance and operation of such actuators hinder their utility. Here, we utilise liquid metal enabled pumps to induce vortices inside a miniaturised liquid chamber. The configuration and rotational velocity of these vortices can be controlled by tuning the polarity and frequency of the energising electrical signal. This allows creation of customised spatial temperature gradients inside the chamber. The absence of conventional moving elements in the pumps facilitates the rapid reconfiguration of vortices. This enables quick transition from one temperature profile to another, and creates customised spatiotemporal temperature gradients. This allows temperature oscillation from 35 to 62 degrees C at the hot spot, and from 25 to 27 degrees C at the centre of the vortex within 15 seconds. Our liquid metal enabled vortex generator can be fabricated, integrated and operated easily, and offers opportunities for studying thermo-responsive materials and biological samples. PMID- 29034404 TI - Quality control and gap-filling of PM10 daily mean concentrations with the best linear unbiased estimator. AB - According to the European Directive 2008/50/CE, the air quality assessment consists in the measurement of the concentration fields, and the evaluation of the mean, number of exceedances, etc. of some chemical species dangerous to human health. The measurements provided by an air quality ground-based monitoring network are the main information source but the availability of these data is often limited by several technical and operational problems. In this paper, the best linear unbiased estimator (BLUE) is proposed to validate the pollutant concentration values and to fill the gaps in the measurement of time series collected by a monitoring network. The BLUE algorithm is tested using the daily mean concentrations of particulate matter having aerodynamic diameter less than 10 MU (PM10 concentrations) measured by the air quality monitoring sensors operating in the Lazio Region in Italy. The comparison between the estimated and measured data evidences an error comparable with the measurement uncertainty. Due to its simplicity and reliability, the BLUE will be used in the routine quality test procedures of the Lazio air quality monitoring network measurements. PMID- 29034406 TI - Correction to: Phase II study of bi-weekly temozolomide plus bevacizumab for adult patients with recurrent glioblastoma. PMID- 29034405 TI - Immunohistochemical and serological characterization of membranous nephropathy in children and adolescents. AB - BACKGROUND: Membranous nephropathy (MN) is a common cause of nephrotic syndrome in adults, but is less frequent in children. Antibodies against four antigens leading to MN have been described in children: phospholipase A2 receptor 1 (PLA2R1), thrombospondin type-1 domain-containing 7A (THSD7A), neutral endopeptidase (NEP), and cationic bovine serum albumin (BSA). METHODS: Twelve children with MN were included in this study. Sera of all patients were analyzed for antibodies against PLA2R1, THSD7A, NEP, and BSA. All sera were also analyzed using Western blot with human glomerular extracts (HGE) under non reducing conditions. In 5 cases renal biopsies were analyzed for PLA2R1, THSD7A, NEP, BSA, and all IgG subclasses. RESULTS: Six patients were PLA2R1-antibody-positive, whereas THSD7A, NEP, and BSA antibodies were not found in any of our 12 patients. All sera were analyzed by Western blot using human glomerular extracts; however, no further potential antigens were found. Five kidney biopsies from 2 PLA2R1 antibody-positive and 3 PLA2R1-antibody-negative patients were available for additional analyses, confirming the diagnosis of PLA2R1-associated MN in 2 cases, whereas none of the biopsies revealed enhanced staining for THSD7A, NEP or BSA. IgG2 and IgG4 stainings were positive in both patients with PLA2R1-associated MN and negative in the other biopsies. During follow-up (median 24 months), 4 children with PLA2R1-associated MN went into remission, preceded by decline of PLA2R1 antibodies. Five of the 6 PLA2R1-antibody-negative children went into remission. CONCLUSIONS: In children with MN, PLA2R1-associated MN appears to be common, whereas MN associated with THSD7A, NEP or BSA was not encountered. PLA2R1 antibody levels are closely associated with disease activity, whereas PLA2R1 antibody-negative patients often have a good prognosis. However, the pathophysiology of MN in a considerable number of children remains unclear. PMID- 29034407 TI - Novel Mahalanobis-based feature selection improves one-class classification of early hepatocellular carcinoma. AB - Detection of early hepatocellular carcinoma (HCC) is responsible for increasing survival rates in up to 40%. One-class classifiers can be used for modeling early HCC in multidetector computed tomography (MDCT), but demand the specific knowledge pertaining to the set of features that best describes the target class. Although the literature outlines several features for characterizing liver lesions, it is unclear which is most relevant for describing early HCC. In this paper, we introduce an unconstrained GA feature selection algorithm based on a multi-objective Mahalanobis fitness function to improve the classification performance for early HCC. We compared our approach to a constrained Mahalanobis function and two other unconstrained functions using Welch's t-test and Gaussian Data Descriptors. The performance of each fitness function was evaluated by cross validating a one-class SVM. The results show that the proposed multi-objective Mahalanobis fitness function is capable of significantly reducing data dimensionality (96.4%) and improving one-class classification of early HCC (0.84 AUC). Furthermore, the results provide strong evidence that intensity features extracted at the arterial to portal and arterial to equilibrium phases are important for classifying early HCC. PMID- 29034408 TI - Occurrence of organochlorine pesticides in a tropical lake basin. AB - This study investigates the presence and distribution of organochlorine pesticides in streams and the lake in the Sembrong Lake Basin in Malaysia. The catchment of Sembrong Lake has been converted to agricultural areas over the past 30 years, with oil palm plantations and modern agricultural farming being the main land use. Surface water samples were collected from eight sites comprising the stream and lake and analysed for 19 organochlorine pesticides (OCPs). In situ measurement of temperature, dissolved oxygen, pH and conductivity were also undertaken at each site. Aldrin, endrin, delta-BHC, 4,4-DDT, methoxychlor and endosulfan were the main OCPs detected in the lake basin. The total OCP concentration ranged between 5.42 and 349.2 ng/L. The most frequently detected OCPs were delta-BHC, heptachlor and aldrin. The maximum values detected were 23.0, 43.2 and 50.4 ng/L respectively. The highest concentration of OCPs was attributed to 4,4-DDT, but such high residue was rare and only detected once. Other OCP residues were low. Significant differences in the mean values were observed between lake and stream for dichlorodiphenyldichloroethylene (DDE) and alpha-endosulfan concentration (p < 0.05). The highest endosulfan, endrin and methoxychlor residues were found in lake sites, while the highest 4,4,-DDT residues were observed for the river sites. Temporal variation of OCP residues was observed for heptachlor and beta-endosulfan. The highest concentrations of pesticide residues were found in October. DDX and alpha/gamma ratios indicate possible fresh inputs of the OCP pesticide in the basin. PMID- 29034409 TI - Multi-criteria analysis for municipal solid waste management in a Brazilian metropolitan area. AB - The decision-making process involved in municipal solid waste management (MSWM) must consider more than just financial aspects, which makes it a difficult task in developing countries. The Recife Metropolitan Region (RMR) in the Northeast of Brazil faces a MSWM problem that has been ongoing since the 1970s, with no common solution. In order to direct short-term solutions, three MSWM alternatives were outlined for the RMR, considering the current and future situations, the time and cost involved and social/environmental criteria. A multi-criteria approach, based on the Preference Ranking Organization Method for Enrichment Evaluations (PROMETHEE), was proposed to rank these alternatives. The alternative that included two private landfill sites and seven transfer, sorting and composting stations was confirmed as the most suitable and stable option for short-term MSWM, considering the two scenarios for the criteria weights. Sensitivity analysis was also performed to support the robustness of the results. The implementation of separate collections would minimize the amount of waste buried, while maximizing the useful life of landfill sites and increasing the timeframe of the alternative. Overall, the multi-criteria analysis was helpful and accurate during the alternative selection process, considering the similarities and restrictions of each option, which can lead to difficulties during the decision making process. PMID- 29034410 TI - Caste matters: perceived discrimination among women in rural India. AB - The aim of this study is to examine the relationship of caste and class with perceived discrimination among pregnant women from rural western India. A cross sectional survey was administered to 170 pregnant women in rural Gujarat, India, who were enrolled in a longitudinal cohort study. The Everyday Discrimination Scale and the Experiences of Discrimination questionnaires were used to assess perceived discrimination and response to discrimination. Based on self-report caste, women were classified into three categories with increasing historical disadvantage: General, Other Backward Castes (OBC), and Scheduled Caste or Tribes (SC/ST). Socioeconomic class was determined using the standardized Kuppuswamy scale. Regression models for count and binomial data were used to examine association of caste and class with experience of discrimination and response to discrimination. Sixty-eight percent of women experienced discrimination. After adjusting for confounders, there was a consistent trend and association of discrimination with caste but not class. In comparison to General Caste, lower caste (OBC, SC/ST) women were more likely to (1) experience discrimination (OBC OR: 2.2, SC/ST: 4.1; p trend: 0.01); (2) have a greater perceived discrimination score (OBC IRR: 1.3, SC/ST: 1.5; p trend: 0.07); (3) accept discrimination (OBC OR: 6.4, SC/ST: 7.6; p trend: < 0.01); and (4) keep to herself about discrimination (OBC OR: 2.7, SC/ST: 3.6; p trend: 0.04). The differential experience of discrimination by lower caste pregnant women in comparison to upper caste pregnant women and their response to such experiences highlight the importance of studying discrimination to understand the root causes of existing caste-based disparities. PMID- 29034413 TI - Abstracts Laser Florence 2017. PMID- 29034411 TI - Impact of corneal donor lens status on two-year course and outcome of Descemet membrane endothelial keratoplasty (DMEK). AB - PURPOSE: Our purpose was to investigate the impact of lens status of corneal donors on the two-year course and clinical outcome of Descemet membrane endothelial keratoplasty (DMEK). METHODS: In 181 DMEK surgeries, 136 phakic and 45 pseudophakic donor corneas were grafted. In this retrospective audit we compared the lens status of corneal donors regarding the outcome measures best spectacle-corrected visual acuity (BSCVA), central corneal thickness (CCT), and endothelial cell density (ECD) at 1, 3, 6, 12, and 24 months, as well as intra- and postoperative complication rates and graft detachment rates requiring re bubbling. RESULTS: Comparing the use of phakic and pseudophakic donor tissue in DMEK surgery, BSCVA results revealed no significant differences during the two year course (p >= 0.087). CCT showed significantly lower values at 1 month (553.8 +/- 56 vs. 625.2 +/- 119 MUm; p < 0.001) and 6 months follow-up (530.6 +/- 49.9 vs. 557.3 +/- 47 MUm; p = 0.026) for phakic donor tissue recipients, but were comparable later (p >= 0.173). ECD values were statistically higher 6 (1915 +/- 390 vs. 1565 +/- 420 cells/mm2; p < 0.001) and 24 months postoperatively (1772 +/ 384 vs. 1375 +/- 377 cells/mm2; p = 0.030) in phakic donor tissue recipients. Mixed regression analyses demonstrated a significant association between ECD results and donor lens status (p = 0.029) and donor ECD (p = 0.028), but donor age did not show significant influence (p = 0.241). CONCLUSION: ECD is higher in phakic corneal donors and appears to remain at a higher level during the course resulting in initially faster reduction of corneal edema compared to pseudophakic DMEK grafts. Nevertheless, pseudophakic transplants with high ECD seem to produce comparable functional results in recipients after a two year course. PMID- 29034412 TI - Memory effect and anisotropy of particle arrangements in granular paste. AB - It is known that pastes of fine powder, for example those of clay, retain memory of shaking applied early in a drying process. This memory results in the appearance of anisotropic patterns of desiccation cracks after drying. In this work, we find a similar behavior in pastes consisting of large granular particles, specifically cornstarch and Lycopodium spores. Because of the large particle size, we were able to observe particle arrangements in Lycopodium paste with micro-focus X-ray computerized tomography ( MU CT). We prepared pastes consisting of Lycopodium particles and water. Agar was added to the paste in order to allow for solidification during a drying process. In these samples, we found statistical anisotropy induced by shaking applied early in the drying process. This anisotropy possesses a feature that was predicted on the basis of results obtained in previous experimental and theoretical studies. PMID- 29034414 TI - Occurrence and zoonotic potential of endoparasites in cats of Cyprus and a new distribution area for Troglostrongylus brevior. AB - The present study investigated for the first time the occurrence of pulmonary and intestinal parasites of cats in Cyprus. Cats from five districts of Cyprus (Lefkosia, Lemesos, Larnaka, Pafos and Ammochostos) were examined by classical parasitological methods and the identity of lungworm larvae, whenever present, was confirmed by PCR-coupled sequencing. A total of 185 cats, 48 living exclusively indoors and 137 with outdoor access, were included in the study. Parasites were found in 66 (35.7%) of the examined cats, i.e. Toxocara cati (12%), Cystoisospora rivolta (12%), Joyeuxiella/Diplopylidium spp. (7%), Giardia spp. (6.5%), Troglostrongylus brevior (5%), Cystoisospora felis (2.5%), Aelurostrongylus abstrusus (2%), Taenia spp. (0.5%) and Dipylidium caninum (0.5%). Mixed infections were recorded in 18 cats. Cats that lived exclusively indoors or had received an antiparasitic treatment in the last 6 months were less likely to be infected (p < 0.05). Moreover, cats younger than 1 year old were more likely to shed first-stage larvae of T. brevior (p = 0.04). The present study shows that cats in Cyprus are infected at a high percentage by a variety of parasites that potentially affect their health and also, in some cases (i.e. T. cati, D. caninum, Giardia spp.), may have an impact on human health. Moreover, it was revealed that T. brevior, a lungworm of emerging significance, is present on the island, rendering Cyprus the easternmost distribution border of this parasite in Europe to date. PMID- 29034415 TI - A diabetic ketoacidosis in a context of hyperglycemia addiction. AB - We herein present a case of a 20-year-old woman who suffered from type I diabetes mellitus and died from a diabetic ketoacidosis in a context of addiction to hyperglycemia. Diabetic ketoacidosis is a lethal complication of insulin dependent diabetes mellitus, which can result from insulin therapy stoppage. This can occur voluntarily with suicidal intent or involuntarily due to treatment inaccessibility, forgotten injections, or material deficiency. A new possibility is investigated in our case study: hyperglycemia addiction. The patient was treated by insulin glargine and insulin aspartate. She regularly stopped insulin glargine injections seeking the asthenia sensation produced by hyperglycemia, keeping the insulin aspartate injections to treat the disabling symptom related to hyperketonemia. PMID- 29034416 TI - Time since death in a case of simultaneous demise due to a single gunshot: an issue concerning the use of Henssge's nomogram. AB - We report a case of a double homicide in which the victims, a man and his daughter, were simultaneously killed by a single gunshot. The temperature-based nomogram method for estimation of the time since death was used to ascertain the reliability of the method in a case of simultaneous demise, where the exact time of death was obtained from the analysis of security cameras.In the case presented, the victims differed for a great number of parameters (e.g., atmospheric conditions, thermal insulation of lower trunk, and, above all, body weight), except for the time of death, that was simultaneous. The correct application of the method permitted us to conclude that the estimated time since death was fully consistent with the circumstantial data obtained by the analysis of security cameras.No previous papers reporting the use of the nomogram method in a case of ascertained simultaneously death exists in literature; issues concerning the use of the nomogram method have been presented as well. PMID- 29034417 TI - Age estimation of Chinese children based on second molar maturity. AB - In forensic medicine and many other fields, age estimation by the use of teeth is of great importance for the purpose of individual identification. In the past, however, age estimation based on the second molar mineralization was scarcely performed. In this study, a total of 1657 panoramic radiographs taken from 834 males and 823 females of northern Chinese origin in the age bracket 5 to 25 years were assessed. The mineralization status of the second molars was determined using the classification described by Demirjian et al. Results showed that the left and right, as well as maxillary and mandibular second molars were generally at similar stages of mineralization. The maxillary left second molars (27) at stage D, mandibular left second molars (37) at stages C, D, F, and G, and mandibular right second molars (47) at stages D, F, and G showed a significantly lower average age in female subjects than in male subjects. In males, fully developed second molars first appeared with 12 years of age; in females, stage H occurred with 11 years at the earliest. One male individual and one female individual with second molars showing stage G were 23 years old. It was concluded that second molars showing stage H do not exclude an age under 14 years and that second molars showing stage G do not exclude an age above 18 years. PMID- 29034418 TI - Botanical Nomenclature in Pharmacovigilance and a Recommendation for Standardisation. AB - Nomenclature of plants in pharmacology can be presented by pharmaceutical names or scientific names in the form of Linnaean binomials. In this paper, positive and negative aspects of both systems are discussed in the context of the scientific nomenclatural framework and the systems' practical applicability. The Uppsala Monitoring Centre (UMC) runs the WHO Programme for International Drug Monitoring and is responsible for the WHO Adverse Drug Reaction (ADR) database that currently contains 3.6 million records. In order for the UMC to monitor pharmacovigilance through ADRs to herbal medicine products the following nomenclatural criteria are important: (i) the name should indicate only one species of plant; (ii) the source for this name must be authoritative; (iii) the name should indicate which part of the plant is used. Based on these criteria, the UMC investigated four options: (i) adopt main names used in recognised (inter ) national pharmacopoeias or authoritative publications; (ii) adopt option 1, but cite the publication for all names in abbreviated form; (iii) three-part pharmaceutical names consisting of Latinised part name plus Latinised genus name, plus Latinised specific epithet; (iv) scientific binomial names, optionally with author and plant part used. The UMC has chosen the latter option and will at its adoption utilise the scientific botanical nomenclature as defined by the International Code of Botanical Nomenclature. This decision satisfies all criteria set by the UMC and renders the necessity of creating a new system or upgrading an old inconsistent system obsolete. The UMC has also issued an extensive synonymy checklist of vernacular, pharmaceutical and scientific names for the herbals in the WHO ADR database. We strongly recommend the adoption of scientific names to denote plant ingredients in medicine. PMID- 29034419 TI - Esophagitis unrelated to reflux disease: current status and emerging diagnostic challenges. AB - There has been much progress in our understanding of esophageal inflammatory disorders in the past few years. This is particularly true about esophageal eosinophilia and PPI responsiveness, lymphocytic esophagitis and motility disorders, and short-term risk of neoplasia in esophageal leukoplakia. The current review will summarize esophageal injury patterns that primarily occur due to non-reflux causes, with a focus on usual pitfalls in biopsy diagnosis and recent advances in our knowledge of the more common forms of esophagitis. PMID- 29034420 TI - Prevalence of dental agenesis in a sample of Italian orthodontic patients: an epidemiological study. AB - BACKGROUND: The congenital absence of one or more teeth is a dental anomaly that frequently occurs in the world's population with a wide variability of distribution. The aim of this study is to assess the current prevalence of dental agenesis in the permanent dentition (excluding third molars) using a sample of Italian orthodontic patients. METHODS: Panoramic radiographs of 4006 Caucasian children between 9 and 16 years of age (1865 males and 2141 females) performed over a 5-year period (from 2010 to 2015) were carefully examined to identify congenital missing teeth. A chi-square test was used to determine the difference in the prevalence of hypodontia between genders and between arches. RESULTS: The prevalence of dental agenesis was 9% (9.1% for females and 8.7% for males). The most common congenitally missing teeth were the mandibular second premolars (20.3 and 18.1%) followed by the upper lateral incisors (17.8 and 17.7%) and the maxillary second premolars (7.4 and 6.3%). The absence of one tooth to five teeth was observed in 344 patients (8.6%), while 15 patients showed from six to nine missing teeth (0.4%). The analysis showed 363 cases of agenesis in the upper arch (0.64%) and 339 in the lower arch (0.60%). Unilateral (4.6%) and bilateral (4.4%) agenesis demonstrated a similar frequency. The most common bilateral missing teeth were the mandibular second premolars (1.9%) and the maxillary lateral incisors (1.6%). CONCLUSIONS: The results of this study observed a higher prevalence of hypodontia compared to previous studies conducted on the Italian population. Thus, a detailed and careful radiographic examination was important in diagnosing one or more missing teeth. This could help plan the best possible treatments, both esthetically and functionally, for these patients. PMID- 29034422 TI - A bibliometric analysis of research on haze during 2000-2016. AB - As one of the bibliometric analysis tools, CiteSpace software was applied to quantitatively and visually evaluate global scientific documents of research on haze from 2000 to 2016. Five thousand six hundred six documents from the Science Citation Index Expanded (SCI-Expanded) and Social Science Citation Index (SSCI) of the Web of Science database were statistically analyzed and examined. The distributions on authorship, countries/territories, institutes, and keywords were generated. The amount of publications has increased nearly for the past 17 years. The most productive author was Li J. with 46 articles. The publications on haze research were primarily originated from the USA, China, Germany, and France. By synthetically analyzing the keywords, the dominant hot spots of haze research could be concluded as "aerosol," "atmosphere," "particle," "PM2.5,"and "air quality." PMID- 29034421 TI - Hippocampal Deformations and Entorhinal Cortex Atrophy as an Anatomical Signature of Long-Term Cognitive Impairment: from the MCAO Rat Model to the Stroke Patient. AB - Stroke patients have an elevated risk of developing long-term cognitive disorders or dementia. The latter is often associated with atrophy of the medial temporal lobe. However, it is not clear whether hippocampal and entorhinal cortex atrophy is the sole predictor of long-term post-stroke dementia. We hypothesized that hippocampal deformation (rather than atrophy) is a predictive marker of long-term post-stroke dementia on a rat model and tested this hypothesis in a prospective cohort of stroke patients.Male Wistar rats were subjected to transient middle cerebral artery occlusion and assessed 6 months later. Ninety initially dementia free patients having suffered a first-ever ischemic stroke were prospectively included in a clinical study. In the rat model, significant impairments in hippocampus-dependent memories were observed. MRI studies did not reveal significant atrophy of the hippocampus volume, but significant deformations were indeed observed-particularly on the ipsilateral side. There, the neuronal surface area was significantly lower in ischemic rats and was associated with a lower tissue density and a markedly thinner entorhinal cortex. At 6 months post-stroke, 49 of the 90 patients displayed cognitive impairment (males 55.10%). Shape analysis revealed marked deformations of their left hippocampus, a significantly lower entorhinal cortex surface area, and a wider rhinal sulcus but no hippocampal atrophy. Hence, hippocampal deformations and entorhinal cortex atrophy were associated with long-term impaired cognitive abilities in a stroke rat model and in stroke patients. When combined with existing biomarkers, these markers might constitute sensitive new tools for the early prediction of post stroke dementia. PMID- 29034423 TI - Effect and mechanism of microwave-activated ultraviolet-advanced oxidation technology for adsorbent regeneration. AB - To decrease the secondary pollution of volatile organic compounds (VOCs) during adsorbent regeneration by microwave, electrodeless lamp was added in the microwave field to oxidize VOCs in the gas phase. Ultraviolet has a significant improvement on mineralization of VOCs generated from adsorbate during adsorbent regeneration. However, the mechanism and main influence factors on the degradation of VOCs are not clear. The effect of microwave power, regeneration time, airflow rate, and humidity content on the mineralization of adsorbed tetracycline during adsorbent regeneration was studied. Ozone concentration and ultraviolet irradiation intensity were also measured to analyze the mechanism of the microwave-ultraviolet adsorbent regeneration method. Although the electrodeless lamp adsorbed microwave and competed with the regenerated adsorbent, the mineralization percentage of tetracycline increased about 10% with the presence of electrodeless lamp at the same microwave power supply. Besides, humidity content also takes an important role on enhancing the mineralization of tetracycline. The mineralization of tetracycline in the microwave-ultraviolet field consists of three major parts: pyrolysis, ozone oxidation, and free radical oxidation. More than 50% adsorbed tetracycline can be oxidized into H2O and CO2 during regeneration in 5 min. These results support the potential use of electrodeless lamp to treat VOCs in the gas phase to decrease the risk of secondary pollution during adsorbent regeneration. PMID- 29034424 TI - Interaction mechanisms between polycyclic aromatic hydrocarbons (PAHs) and organic soil washing agents. AB - Understanding interaction mechanisms between polycyclic aromatic hydrocarbons (PAHs) and soil-washing agents can help in choosing efficient agents which are able to desorb and solubilize PAHs. This study investigated interaction mechanisms between pyrene and four washing agents including: two dissolved organic matters (DOM) F-DOM and CRC-DOM, and two commercial bio-based surfactants BBE-1000 and Supersolv using fluorescence spectroscopy combined with multivariate curve resolution alternating regression (MCR-AR). The efficiencies of these washing agents in removing PAHs from the soil were tested in a soil washing experiment. Pyrene showed pi-pi interactions with F-DOM and no interaction with CRC-DOM. This could be attributed to the more aromatic structures in F-DOM compared to CRC-DOM. The two DOMs were inefficient in soil washing which might be attributed to the relatively weak effect of pi-pi interactions in releasing PAHs from the soil. Interaction mechanisms between pyrene and the bio-based surfactants were elucidated with MCR-AR, which resolved three spectroscopically active species from pyrene emission spectra as a function of pyrene and bio-based surfactants concentrations. These species resembled pyrene emission in a polar and nonpolar microenvironment, respectively and of an excimer. Concentration profiles retrieved by the model for the three species showed that, below the critical micelle concentration (CMC), Supersolv created more nonpolar interactions with pyrene compared to BBE-1000. In soil washing, Supersolv showed the highest efficiency in extracting PAHs from the soil. This highlighted the importance of nonpolar interactions in desorbing PAHs from soils, which could then be solubilized in micelles. This study demonstrated the potential of fluorescence spectroscopy combined with the MCR-AR model for selecting efficient soil-washing agents. PMID- 29034425 TI - Kinetics of imidazolium-based ionic liquids degradation in aqueous solution by Fenton oxidation. AB - In the last few years, several works dealing with Fenton oxidation of ionic liquids (ILs) have proved the capability of this technology for their degradation, achieving complete ILs removal and non-toxic effluents. Nevertheless, very little is known about the kinetics of this process, crucial for its potential application. In this work, the effect of several operating conditions, including reaction temperature (50-90 degrees C), catalyst load (10 50 mg L-1 Fe3+), initial IL concentration (100-2000 mg L-1), and hydrogen peroxide dose (10-200% of the stoichiometric amount for the complete IL mineralization) on 1-butyl-3-methylimidazolium chloride ([C4mim]Cl) oxidation has been investigated. Under the optimum operating conditions (T = 90 degrees C; [Fe3+]0 = 50 mg L-1; [H2O2]0 = 100% of the stoichiometric amount), the complete removal of [C4mim]Cl (1000 mg L-1) was achieved at 1.5-min reaction time. From the experimental results, a potential kinetic model capable to describe the removal of imidazolium-based ILs by Fenton oxidation has been developed. By fitting the proposed model to the experimental data, the orders of the reaction with respect to IL initial concentration, Fe3+ amount and H2O2 dose were found to be close to 1, with an apparent activation energy of 43.3 kJ mol-1. The model resulted in a reasonable fit within the wide range of operating conditions tested in this work. PMID- 29034426 TI - Macrophytes as potential biomonitors in peri-urban wetlands of the Middle Parana River (Argentina). AB - The aims of this study were to measure the concentrations of nutrients and pollutants in peri-urban wetlands, to analyze the plant morphology of the most representative macrophyte species, and to determine their potential use as biomonitors. Four wetlands in the Middle Parana River floodplain evidencing contamination or anthropogenic impact were studied. The studied species were Typha domingensis Pers., Eichhornia crassipes (Mart.) Solms., Alternanthera philoxeroides (Mart.) Griseb., and Pistia stratiotes L. Besides, the same plant species from an uncontaminated wetland considered as control were studied. A. philoxeroides showed the highest total phosphorus (TP) concentration in leaves throughout the study, while the other species showed a higher TP concentration in roots than in leaves. Since metal concentration in A. philoxeroides tissues was always higher than in sediment, further studies focused on its phytoremediation capacity should be carried out. T. domingensis exhibited the highest Zn concentrations in roots followed by Pb, and E. crassipes presented the highest values of Pb concentrations in roots. The aerial part height of the plants from peri-urban wetlands was significantly higher than that of the plants from the control, while the root length was significantly lower. The root length of P. stratiotes showed a negative correlation with soluble reactive phosphorus (SRP) concentration in water. All the root anatomical parameters of T. domingensis and E. crassipes showed a positive correlation with nitrate and ammonium concentrations in water. The studied macrophytes evidenced a high tolerance, enabling them to grow and survive in peri-urban wetlands that receive pollution from different sources. The use of aquatic and wetland plants as contaminant bioindicators and bioaccumulators in the Middle Parana River floodplain is completely feasible. PMID- 29034428 TI - Heterogeneous electro-Fenton catalyst for 1-butylpyridinium chloride degradation. AB - The application of the electro-Fenton process for organic compound mineralisation has been widely reported over the past years. However, operational problems related to the use of soluble iron salt as a homogeneous catalyst involve the development of novel catalysts that are able to operate in a wide pH range. For this purpose, polyvinyl alcohol-alginate beads, containing goethite as iron, were synthesised and evaluated as heterogeneous electro-Fenton catalyst for 1 butylpyridinium chloride mineralisation. The influence of catalyst dosage and pH solution on ionic liquid degradation was analysed, achieving almost total oxidation after 60 min under optimal conditions (2 g/L catalyst concentration and pH 3). The results showed good catalyst stability and reusability, although its effectiveness decreases slightly after three successive cycles. Furthermore, a plausible mineralisation pathway was proposed based on the oxidation byproducts determined by chromatographic techniques. Finally, the Microtox(r) test revealed notable detoxification after treatment which demonstrates high catalyst ability for pyridinium-based ionic liquid degradation by the electro-Fenton process. PMID- 29034427 TI - Mosquito oviposition deterrents. AB - Mosquitoes are well-known vectors of disease and threaten the health of millions of people annually. While synthetic insecticides have been relied on to combat these diseases, insecticide resistance and environmental concerns have directed attention towards novel and more targeted mosquitocides derived from botanicals. Research on the activity of botanical derivatives has focused on mosquito larvae and adults with little attention given to their potential as oviposition deterrents against gravid female mosquitoes. This review explores the influence of chemical and biological factors on deterrence and examines issues relating to environmental persistence and non-target effects. With very few discoveries of new insecticide pathways, the answer to effective mosquito control may well reside within other ancient plant-based organisms that have co-resided and evolved with this ubiquitous pest. PMID- 29034429 TI - Toxicity studies of nanofabricated palladium against filariasis and malaria vectors. AB - The present study was carried out to establish the biofabrication of palladium nanoparticles (PdNPs) using the plant leaf extract of Tinospora cordifolia Miers and its toxicity studies on the larvae of filariasis vector, Culex quinquefasciatus Say and malaria vector, Anopheles subpictus Grassi. The biofabricated PdNPs were characterized by using UV-visible spectrum, FTIR, XRD, FESEM, EDX and HRTEM. HRTEM confirmed the PdNPs were slightly agglomerated and spherical in shape and the average size was 16 nm. Gas chromatography and mass spectrometry analysis result revealed that the major constituent present in the T. cordifolia leaf extract is 2,4-di-tert-butylphenol (31.79%) whereas the minor compounds are 1-hexadecanol (7.97%), 1-octadecanol (7.70%), 1-eicosanol (6.85%), behenic alcohol (5.36%), 1-tetradecene (6.22%), cyclotetradecane (6.23%), 1 hexadecene (7.97%), 1-octadecene (7.70%), 1-eicosene (6.85%), and 1-docosene (5.36%). T. cordifolia leaf extract exhibited the larvicidal activity against the fourth instar larvae of C. quinquefasciatus and A. subpictus with the values of LC50 = 59.857 and 54.536 mg/L; LC90 = 113.445 and 108.940 mg/L, respectively. The highest toxicity was observed in the biofabricated PdNPs against the fourth instar larvae of C. quinquefasciatus and A. subpictus with the values of LC50 = 6.090 and 6.454 mg/L; LC90 = 13.689 and 13.849 mg/L, respectively. Concerning non target effects, Poecilia reticulata were exposed to PdNPs for 24 h and did not exhibit any noticeable toxicity. Overall, our findings strongly suggest that PdNPs is a perfect ecological and inexpensive approach for the control of filariasis and malaria vectors. PMID- 29034431 TI - Cultivation-dependent and high-throughput sequencing approaches studying the co occurrence of antibiotic resistance genes in municipal sewage system. AB - During the past years, antibiotic-resistant bacteria (ARB) leading for the spreading of antibiotic resistance genes (ARGs) became a global problem, especially multidrug-resistant (MDR) bacteria are considered the prime culprit of antibiotic resistance. However, the correlation between the antibiotic-resistant phenotype and the ARG profiles remains poorly understood. In the present study, metagenomic functional screening and metagenomic analysis of coliforms were combined to explore the phenotype and genotype of the ARBs from municipal sewage. Our results showed that the ARG co-occurrence was widespread in the municipal sewage. The present study also highlighted the high abundance of ARGs from antibiotic resistance coliforms especially the MDR coliforms with ARG level of 33.8 +/- 4.2 copies per cell. The ARG profiles and the antibiotic resistance phenotypes of the isolated antibiotic resistant coliforms were also correlated and indicated that the resistance to the related antibiotic (ampicillin, kanamycin, erythromycin, chloramphenicol, and tetracycline) was mostly contributed by the ARGs belonging to the subtypes of beta-lactamase, aminoglycoside 3-phosphotransferase, phosphotransferase type 2, chloramphenicol acetyltransferase, tetA, etc. PMID- 29034430 TI - Ultraviolet filters and heat shock proteins: effects in Chironomus riparius by benzophenone-3 and 4-methylbenzylidene camphor. AB - Benzophenone-3 (BP3) and 4-methylbenzylidene camphor (4MBC) are common ultraviolet filters (UV filters), compounds considered as emergent contaminants, used in different products like plastics and personal care products. The levels of these compounds are rising in the wild, but the effects they have on invertebrates are poorly understood. Chironomus riparius is a benthic insect widely used in toxicology, and several studies have been previously performed in our laboratory to determine the effects these compounds have on this organism at the molecular level. We have shown that UV filters can alter the mRNA levels of heat shock protein 70 (Hsp70), one of the most studied heat shock proteins. Although these proteins are crucial for the survival of organisms, little data is available on the effects these emergent contaminants have on them, especially in invertebrates. Here, we analyzed the transcriptional activity of 12 genes covering the different groups of heat shock protein [Hsp10, Hsp17, Hsp21, Hsp22, Hsp23, Hsp24, Hsp27, Hsp34, Hsp40, Hsp60, Hsc70 (3), and Hsc70 (4)] in response to 0.1 and 1 mg/L concentrations of BP3 and 4MBC at 8 and 24 h. The results showed that some small Hsp (sHsp) genes were altered by these compounds, while the genes of proteins present in mitochondria, Hsp10 and Hsp60, did not change. sHsps are also involved in developmental processes, so the observed variations could be due to the endocrine disruption activity described for these compounds rather than to a stress response. PMID- 29034432 TI - YKL071W from Saccharomyces cerevisiae encodes a novel aldehyde reductase for detoxification of glycolaldehyde and furfural derived from lignocellulose. AB - Aldehydes generated as by-products during the pretreatment of lignocellulose are the key inhibitors to Saccharomyces cerevisiae, which is considered as the most promising microorganism for industrial production of biofuel, xylitol as well as other special chemicals from lignocellulose. S. cerevisiae has the inherent ability to in situ detoxify aldehydes to corresponding alcohols by multiple aldehyde reductases. Herein, we report that an uncharacterized open reading frame YKL071W from S. cerevisiae encodes a novel "classical" short-chain dehydrogenase/reductase (SDR) protein with NADH-dependent enzymatic activities for reduction of furfural (FF), glycolaldehyde (GA), formaldehyde (FA), and benzaldehyde (BZA). This enzyme showed much better specific activities for reduction of GA and FF than FA and BZA, and displayed much higher Km and Kcat/Km but lower Vmax and Kcat for reduction of GA than FF. For this enzyme, the optimum pH was 5.5 and 6.0 for reduction of GA and FF, and the optimum temperature was 30 degrees C for reduction of GA and FF. Both pH and temperature affected stability of this enzyme in a similar trend for reduction of GA and FF. Cu2+, Zn2+, Ni2+, and Fe3+ had severe inhibition effects on enzyme activities of Ykl071wp for reduction of GA and FF. Transcription of YKL071W in S. cerevisiae was significantly upregulated under GA and FF stress conditions, and its transcription is most probably regulated by transcription factor genes of YAP1, CAD1, PDR3, and STB5. This research provides guidelines to identify more uncharacterized genes with reductase activities for detoxification of aldehydes derived from lignocellulose in S. cerevisiae. PMID- 29034433 TI - Development of humanized scFv antibody fragment(s) that targets and blocks specific HLA alleles linked to myasthenia gravis. AB - Myasthenia gravis (MG) is an autoimmune disease caused by sensitization of the immune system to self-antigens. We have previously shown that targeting MG susceptible alleles can significantly inhibit proliferation of disease-specific T cells. In this work, we humanized a murine monoclonal antibody (mAb) LG11, capable of blocking MG-associated DQ beta 1 (DQB1) allele and reformatted it into single-chain fragment variable (scFv). A fully functional humanized scFv was obtained by optimizing variable domain orientations and linker lengths, along with the optimization of expression conditions and codons to suit Escherichia coli expression machinery. Characterization of humanized scFv (FL8) revealed that the reformatted scFv, despite recognizing the same epitope as the parent murine LG11 mAb, exhibited superior binding affinity (0.97 nM) compared to the LG11 mAb, towards the immunizing antigen (DQB1*0601/70-90) and was able to block the proliferation of T cells cultured from PBLs of MG-patients typed DQB1*0601. The scFv was also capable of binding a variant MG-associated allele (DQB1*0502/70-90) with moderate affinity (18.7 nM), a feature that was absent in the LG11. To our knowledge, this is the first report of humanizing a MG-associated human leukocyte antigen (HLA) scFv for preclinical studies. PMID- 29034434 TI - Genomic analyses reveal low mitochondrial and high nuclear diversity in the cyclosporin-producing fungus Tolypocladium inflatum. AB - Mitochondrial DNA is generally regarded to evolve faster than nuclear DNA in animals, whereas if this is also true in fungi remains unclear. Herein, we annotate the first complete mitochondrial genome (mitogenome) of the cyclosporin producing fungus Tolypocladium inflatum and report the genome-wide sequence variations among five isolates originating from distantly separated localities. We found that T. inflatum has among the most compact of fungal mitogenomes; its 25 kb DNA molecule encodes all standard fungal mitochondrial genes and harbors only one intron. Transcriptional analyses validated the expression of most conserved genes. We found several uncommon repetitive elements and evidence of gene transfer from the mitochondrion to the nucleus. Phylogenetic analyses confirmed the placement of T. inflatum in the fungal order Hypocreales although there was uncertainty on its family-level affiliation. Comparative genomic analyses among the five isolates identified an overall lower level of intraspecific variation in mitogenomes than in nuclear genomes; however, both the nuclear and mitochondrial genomes revealed similar isolate relationships, not correlating with geographic sources of these isolates. Our study shed new insights into the evolution of the medicinally important ascomycete T. inflatum. PMID- 29034436 TI - Natalizumab therapy is associated with changes in serum JC virus antibody indices over time. AB - To examine changes in anti-JC Virus (JCV) index measurements over time in multiple sclerosis (MS) patients to better understand this test, which is used in assessing risk of progressive multifocal leukoencephalopathy (PML) with natalizumab. We aim to describe and compare seroconversion rates, variability of JCV antibody index values, and changes in index values over time between patients on natalizumab therapy and patients naive to natalizumab. Anti-JCV index values are used to help decide whether to start, continue, or stop treatment. Assessing how index values vary over time is interpreted to allow a patient's risk of PML to be better characterized. Retrospective analysis was conducted using records of patients with multiple JCV antibody index measurements exposed to therapy with natalizumab (N = 150) or not (N = 145). Rates of seroconversion, variability of indices, and changes in index values over time were calculated and compared. Patients on natalizumab who were initially JCV antibody negative seroconverted at a significantly higher rate than patients naive to natalizumab (23.9 vs. 9.1%, p < 0.01). Variability of anti-JCV indices was also found to be significantly higher for patients on natalizumab (p < 0.05). Patients on natalizumab additionally trended towards a larger increase in index values over time. Therapy with natalizumab was associated with higher rates of seroconversion and greater anti-JCV index variability, suggesting that therapy with natalizumab may influence this test used to assess risk of treatment with it. PMID- 29034435 TI - Advances in the Treatment of Paraproteinemic Neuropathy. AB - Purpose of review Several advances have been made on the pathogenesis and therapy of neuropathies associated with paraproteinemia (monoclonal gammopathy). It is important for the neurologist to understand the pathogenetic relevance of this association especially when the hematological disease does not require per se any therapy. Recent findings Treatment of the neuropathy in patients with malignant paraproteinemia is mainly addressed by the hematologist while the neurologist is mainly involved in the initial diagnosis and in deciding whether the neuropathy is caused by the disease or by the chemotherapy used for the disease. There is little evidence that the neuropathy is caused by the hematological condition in patients with IgG or IgA monoclonal gammopathy of undetermined significance (MGUS) unless there is an evidence of a reactivity of the paraprotein with nerve or evidence of its presence in the nerve. Patients with a chronic inflammatory demyelinating polyradiculoneuropathy (CIDP)-like presentation should be treated as CIDP while there is no evidence that immune or chemotherapy may be effective in the other patients. In most patients with IgM paraproteinemia, that is usually a MGUS or an indolent Waldenstrom's macroglobulinemia, the neuropathy is induced by an immune reactivity of the paraprotein with nerve and particularly with the myelin-associated glycoprotein. There are now consistent data also from controlled studies that the anti-CD20 monoclonal antibody rituximab may improve the neuropathy in these patients. POEMS syndrome is a severe condition characterized by a disabling neuropathy whose prognosis has improved in the last few years with therapies against the proliferating plasma cell clone or vascular endothelial growth factor including local radiotherapy and chemotherapy followed by autologous stem cell transplantation. Other therapies are also available for patients not eligible or resistant to transplantation, including lenalidomide and possibly thalidomide or bortezomib. Summary Several new therapies are now available for patients with paraproteinemic neuropathy consistently improving the prognosis of these neuropathies. In most instances, however, their efficacy needs to be confirmed in controlled trials. PMID- 29034438 TI - The Pathways fertility preservation decision aid website for women with cancer: development and field testing. AB - PURPOSE: To improve survivors' awareness and knowledge of fertility preservation counseling and treatment options, this study engaged survivors and providers to design, develop, and field-test Pathways: a fertility preservation patient decision aid website for young women with cancer(c). METHODS: Using an adapted user-centered design process, our stakeholder advisory group and research team designed and optimized the Pathways patient decision aid website through four iterative cycles of review and revision with clinicians (n = 21) and survivors (n = 14). Field-testing (n = 20 survivors) assessed post-decision aid scores on the Fertility Preservation Knowledge Scale, feasibility of assessing women's decision making values while using the website, and website usability/acceptability ratings. RESULTS: Iterative stakeholder engagement optimized the Pathways decision aid website to meet survivors' and providers' needs, including providing patient-friendly information and novel features such as interactive value clarification exercises, testimonials that model shared decision making, financial/referral resources, and a printable personal summary. Survivors scored an average of 8.2 out of 13 (SD 1.6) on the Fertility Preservation Knowledge Scale. They rated genetic screening and having a biological child as strong factors in their decision-making, and 71% indicated a preference for egg freezing. Most women (> 85%) rated Pathways favorably, and all women (100%) said they would recommend it to other women. CONCLUSIONS: The Pathways decision aid is a usable and acceptable tool to help women learn about fertility preservation. IMPLICATIONS FOR CANCER SURVIVORS: The Pathways decision aid may help women make well-informed values-based decisions and prevent future infertility-related distress. PMID- 29034437 TI - Management of early anal cancer: need for guidelines and standardisation. AB - PURPOSE: The optimal management of early squamous cell carcinoma of the anal canal (AC) is yet to be determined. This study investigated current practice in the management of early AC. METHODS: A patterns of care survey was completed by Australian surgeons and radiation oncologists. Specific topics addressed were as follows: geographical location of practice, staging of disease, treatment approaches to T1N0 tumours and grade 3 anal intra-epithelial neoplasia (AIN3) lesions, radiotherapy planning, toxicities, follow-up and clinical trial involvement. RESULTS: Sixty-four responses were obtained. For the management of T1N0 disease, half the respondents recommended standard dose chemo-radiotherapy (CRT) and one third recommended wide local excision (WLE). For the management of AIN3, half recommended WLE while a quarter advocated observation. CONCLUSIONS: This study reveals a significant variation in the management of early AC. The development of guidelines specific to the treatment of early AC could standardise treatment while further research is required to define the optimal management of T1N0 AC and AIN. PMID- 29034439 TI - Low-grade small intestinal bacterial overgrowth is common in patients with non alcoholic steatohepatitis on quantitative jejunal aspirate culture. AB - BACKGROUND: Though pathogenesis of non-alcoholic steatohepatitis (NASH) is unclear, association with small intestinal bacterial overgrowth [SIBO] and fecal dysbiosis is suggested. We evaluated SIBO in NASH using quantitative jejunal aspirate culture (conventional criteria: >= 105 colony forming unit (CFU)/mL and newer cutoff >= 103 CFU/mL) and glucose hydrogen breath test. METHODS: Thirty eight patients with NASH (age 37.5 years, range 20-54, 9, 24% female), diagnosed by ultrasonography, alanine aminotransferase >1.5 times normal and liver biopsy (in 27/38, 71%) and exclusion of other causes and 12 constipation-predominant irritable bowel syndrome as historical controls (age 39.5-y, 26-44; 3, 25% female) without fatty liver were studied. RESULTS: Jejunal aspirates, obtained in 35/38 patients, were sterile in 14/35 (40%) and bacteria isolated in 21 (60%) (all aerobic, in one anaerobe also; Gram positive 5, negative 13, both 3). In contrast, bacteria (two Gram negative) were isolated in 3/12 (25%) controls (odds ratio 4.5, 95% CI 1.0-19.5; p = 0.04); colony counts were higher in NASH than controls (median 380 CFU/mL, 0-200,000 vs. 0 CFU/mL, 0-1000; p = 0.02). Gram negative bacteria tended to be commoner in NASH than controls (16/35 vs. 2/12; p = 0.07). Seven out of 35 (20%) patients with NASH (>= 105 CFU/mL in 5 and 2 other on glucose hydrogen breath test) and no control had SIBO (p = ns); low-grade SIBO (>=103 CFU/mL) was commoner in NASH than controls (14/35, 40%, vs. 1/12, 8.3%; p = 0.04). There was no correlation between bacterial colony count and bacterial type and anthropometric and biochemical parameters. CONCLUSION: Low-grade bacterial overgrowth, particularly with Gram negative bacteria, was commoner in NASH than controls. PMID- 29034440 TI - Risperidone-induced metabolic dysfunction is attenuated by Curcuma longa extract administration in mice. AB - Antipsychotics, such as risperidone, increase food intake and induce alteration in glucose and lipid metabolism concomitantly with overweight and body fat increase, these biological abnormalities belong to the metabolic syndrome definition (high visceral adiposity, hypertriglyceridemia, hyperglycemia, low HDL cholesterol and high blood pressure). Curcumin is a major component of traditional turmeric (Curcuma longa) which has been reported to improve lipid and glucose metabolism and to decrease weight in obese mice. We questioned the potential capacity of curcumin, contained in Curcuma longa extract (BiocurcumaTM), to attenuate the risperidone-induced metabolic dysfunction. Two groups of mice were treated once a week, for 22 weeks, with intraperitoneal injection of risperidone (Risperdal) at a dose 12.5 mpk. Two other groups received intraperitoneal injection of the vehicle of Risperdal following the same schedule. Mice of one risperidone-treated groups and of one of vehicle-treated groups were fed a diet with 0.05% BiocurcumaTM (curcumin), while mice of the two other groups received the standard diet. Curcumin limited the capacity of risperidone to reduce spontaneous motricity, but failed to impede risperidone induced increase in food intake. Curcumin did not reduce the capacity of risperidone to induce weight gain, but decreased visceral adiposity and decreased the risperidone-induced hepatomegaly, but not steatosis. Furthermore, curcumin repressed the capacity of risperidone to induce the hepatic over expression of enzymes involved in lipid metabolism (LXRalpha, FAS, ACC1, LPL, PPARgamma, ACO, SREBP2) and decreased risperidone-induced glucose intolerance and hypertriglyceridemia. Curcumin decreased risperidone-induced increases in serum markers of hepatotoxicity (ALAT, ASAT), as well as of one major hepatic pro inflammatory transcription factor (NFkappaB: p105 mRNA and p65 protein). These findings support that nutritional doses of curcumin contained in Curcuma longa extract are able to partially counteract the risperidone-induced metabolic dysfunction in mice, suggesting that curcumin ought to be tested to reduce the capacity of risperidone to induce the metabolic syndrome in human. PMID- 29034443 TI - Prospective clinical study comparing intraligamentary anesthesia and inferior alveolar nerve block for extraction of posterior mandibular teeth. AB - OBJECTIVES: The aim of the study was to compare the efficacy of intraligamentary anesthesia (ILA) with conventional inferior alveolar nerve block (IANB) for extraction of mandibular posterior teeth. MATERIALS AND METHODS: In a prospective clinical trial, a total of 301 mandibular posterior teeth were extracted in 266 patients. Randomization was conducted into those who received ILA (patients n = 98; teeth n = 105) and those who received IANB (patient n = 140; teeth n = 140). Twenty-eight patients were subjected to bilateral mandibular dental extractions and received both ILA und IANB (teeth n = 56 (ILA n = 28; IANB n = 28)). The primary objective was to evaluate the differences in pain during injection, in pain during tooth extraction (numeric rating scale (NRS)), and in anesthetic quality (complete/sufficient vs. insufficient/no effect). Differences in latency time, amount of anesthetic solution, need for second injection, and duration of local numbness as well as in the incidence of dry socket were assessed. RESULTS: ILA had significant lower pain of injection (p < 0.001), shorter latency time (p < 0.001), and shorter duration of local numbness (p < 0.001) and required lesser amount of local anesthetic solution (p < 0.001) together with a similar anesthetic quality (p = 0.082) compared to IANB. Concerning pain during extraction (p = 0.211), frequency of second injection (p = 0.197), and incidence of dry socket (p = 0.178), no significant differences were detected. CONCLUSION: ILA fulfills the requirements of a minimal invasive and patient-friendly local anesthetic technique. In accordance, it represents a safe and reliable alternative to IANB for extraction of mandibular posterior teeth. CLINICAL RELEVANCE: ILA can be recommended for routine dental extractions. PMID- 29034441 TI - The Oral Pretreatment of Glycyrrhizin Prevents Surgery-Induced Cognitive Impairment in Aged Mice by Reducing Neuroinflammation and Alzheimer's-Related Pathology via HMGB1 Inhibition. AB - Neuroinflammation and Alzheimer's-related pathology play essential roles in postoperative cognitive dysfunction (POCD). High-mobility group box 1 (HMGB1) is well known as a pivotal mediator in neuroinflammation, and its associations with Alzheimer's-related pathology and POCD have been also revealed. Glycyrrhizin is a nature inhibitor of HMGB1 and is reported with neuroprotective effects through oral administration. Therefore, the present study aims to test the hypothesis that the oral pretreatment of glycyrrhizin prevents POCD by inhibiting HMGB1 induced neuroinflammation and Alzheimer's-related pathology in aged mice. Aged male C57BL/6 mice were subjected to the splenectomy surgery under general anesthesia and the oral pretreatment of glycyrrhizin. The postoperative cognitive changes were evaluated by using Morris water maze (MWM) test. The protein expressions of HMGB1, TLR4, NF-kappaB, p-Tau, and pro-inflammatory cytokines were determined by Western blot assay. The hippocampal level of beta-amyloid (Abeta) was assessed by ELISA assay. We found that the oral pretreatment of glycyrrhizin inhibited HMGB1 cytosolic expression, increased the PSD-95 protein expression, and attenuated the severity of postoperative memory impairment, as indicated by the shorter swimming latency and distance in MWM trials when compared with the mice subjected to the surgery alone. Additionally, the pretreatment of glycyrrhizin reduced the postoperative neuroinflammation (production of pro inflammatory cytokines including IL-1beta, TNF-alpha, and IL-6 as well as NF kappaB nuclear expression) and Alzheimer's-related pathology (Tau phosphorylation at the site of AT-8 and Ser396 as well as Abeta40 and 42 concentrations) in the hippocampus of the aged mice undergoing splenectomy surgery. In conclusion, our results suggest that the oral pretreatment of glycyrrhizin can prevent the postoperative cognitive impairment by reducing neuroinflammation and Alzheimer's related pathology in the hippocampus of aged mice via HMGB1 inhibition. PMID- 29034442 TI - Correlation between tissue expression of microRNA-137 and CD8 in oral lichen planus. AB - OBJECTIVES: Oral lichen planus (OLP) is a chronic, inflammatory condition, classified by the World Health Organization as a premalignant lesion. We performed this study to evaluate the correlation between microRNA-137 (miR-137) and CD8 oral tissue expression in OLP patients. MATERIALS AND METHODS: Twenty OLP patients [classified into three groups: (a) papular, reticular, or plaque; (b) atrophic; and (c) erosive] and 20 healthy controls were subjected to biopsy of the oral mucosa. To evaluate CD8 tissue expression, we performed immunohistochemical examination, followed by immunostaining and computerized quantification. The expression of miR-137 was evaluated using real-time quantitative PCR. We used SPSS software (version 15 for windows) to perform the statistical analysis. RESULTS: Our analysis showed an increased tissue expression of CD8 (p < 0.01) and reduced expression of miR-137 (p < 0.001) in OLP patients, compared to the control group. Moreover, there was a statistically significant difference (p = 0.001) between OLP subgroups in terms of CD8 tissue expression [highest in erosive OLP and lowest in papular/reticular/plaque OLP]. However, these subgroups showed no significant difference (p = 0.168) in terms of miR-137 expression. A negative correlation (p < 0.05) between tissue expression of miR 137 and CD8 was noted with a varying correlation coefficient in different OLP subgroups (-0.250 in erosive OLP, -0.491 in atrophic OLP and -0.616 in papular/reticular/plaque OLP). CONCLUSIONS: Our findings indicate reduced expression of miR-137 and a reverse correlation between tissue expression of miR 137 and CD8 in the oral mucosa of OLP patients. CLINICAL RELEVANCE: Future studies should investigate the therapeutic potential of miR-137 overexpression in OLP patients. PMID- 29034444 TI - MAGE-A11 expression contributes to cisplatin resistance in head and neck cancer. AB - OBJECTIVE: The objective of this study is to investigate the roles of melanoma associated antigens (MAGEs) in the cisplatin treatment of head and neck cancer. MATERIALS AND METHODS: We assessed the efficacy of cisplatin in a set of four head and neck cancer cell lines using a crystal violet assay. The MAGE-A expression in all cell lines was measured with RT-qPCR. The correlation between MAGE-A expression and cisplatin efficacy was investigated using Spearman's correlation analysis. Furthermore, we established a cell line with stable overexpression of MAGE-A11 and determined influence on proliferation, cisplatin efficacy and cell apoptosis. In this cell line, the effects of cisplatin were assessed using either crystal violet assays or flow cytometry (Annexin V). RESULTS: For MAGE-A11, we observed the highest correlation (r = 1.000, p = 0.0417) with low cisplatin efficacy. Stable overexpression of MAGE-A11 resulted in no changes in proliferation, but in lower cisplatin cytotoxicity and lower rates of apoptosis. Also, mouse double minute 2 homolog (MDM2) expression was induced by MAGE-A11 overexpression. CONCLUSION: We provide evidence that MAGE-A11 expression contributes to cisplatin resistance in head and neck cancer. CLINICAL RELEVANCE: Our study underscores the negative predictive role of MAGE-A11 expression in head and neck cancer. PMID- 29034445 TI - Dental prevention and disease awareness in children with congenital heart disease. AB - OBJECTIVES: The importance of excellent oral health is known to be crucial in children with congenital heart diseases (CHD). Data about dental health and disease awareness is limited. This study aims to assess preventive measures taken to improve dental health in children with CHD and to gain insight into disease awareness and knowledge about the importance of oral health in children with CHD and to propose measures that could be taken. MATERIAL AND METHODS: Parents of 150 children with CHD were asked to complete a questionnaire containing specific questions about the preventive measures taken by the parents and dental and medical practitioners and their knowledge about underlying disease and the importance of oral health. RESULTS: Our results show an absence of information in parents concerning preventive measures and oral hygiene. Knowledge of the indications for antibiotic prophylaxis and for actually given medications was lacking. Preventive dental measures were not performed according to current guidelines. CONCLUSIONS: Knowledge of parents about the importance of oral health in children with CHD could be improved. However, specialized centers involving pediatric cardiologists and pediatric dentists could coordinate the education of parents at an early stage. Moreover, general dentists should be trained more frequently concerning the indications for antibiotic prophylaxis, in particular, and the dental care of children with chronic diseases, in general. Warning cards such as the heart pass should be issued to parents of children with CHD. CLINICAL RELEVANCE: The current study reveals the need for the structured training of medical and dental practitioners to support parents of children with CHD. PMID- 29034446 TI - Glucose Variability After Bariatric Surgery: Is Prediction of Diabetes Remission Possible? AB - We aimed to corroborate glycemic control after bariatric surgery (BS) using continuous glucose monitoring (CGM) and analyze if data could predict long-term outcome. We evaluated 24 of our patients with type 2 diabetes who underwent BS (12 Roux-en-Y gastric bypass, RYGB, and 12 single-anastomosis duodeno-ileal bypass with sleeve gastrectomy, SADI-S) and who were in remission after 18-24 months' follow-up. At this time, a CGM device was placed for 7 days. Patients were reevaluated thereafter for at least 5 years. Glucose variability (GV) was lower in patients after SADI-S and in the 18 patients who were still in remission after 5 years, and provided more information on long-term status than classical diabetes-related characteristics. PMID- 29034448 TI - Synergies From Integrating Randomized Controlled Trials and Real-World Data Analyses. AB - Analyses using administrative claims databases or national registries provide estimates of benefits and harms of medications in real-world settings for large and diverse patient populations. Whereas claims-based nonrandomized studies and randomized-controlled trials (RCTs) have distinct limitations, their strengths are complementary. Integrating RCT and claims data offers substantial synergies. We propose obtaining routinely collected longitudinal claims data from RCT participants and discuss the added value of the novel evidence that can be derived from this "information overlap." PMID- 29034447 TI - Distilling Heterogeneity among Children with Disruptive Behavior: Associations between Symptom Patterns and Social Functioning. AB - Children with disruptive behavior (DB) are a heterogeneous group who exhibit several characteristics that may contribute to poor social functioning. The present study identified profiles of reactive aggression, proactive aggression, callous-unemotional (CU) traits, and prosocial behavior in a sample of children with DB. Associations with social functioning (social interaction, social status) were then examined, along with sex differences in profile membership. Parent ratings of 304 clinic-referred children ages 6-12 years with DB were analyzed using latent profile analysis. Five profiles were identified: 1) Moderate prosocial behavior, reactive aggression, and CU, and low proactive aggression (labelled Moderate); 2) Relatively high prosocial behavior and low reactive and proactive aggression and CU traits (Prosocial); 3) High prosocial behavior and reactive aggression, moderate proactive aggression, and low-moderate CU (Reactive Prosocial); 4) Low prosocial behavior, high CU, high-moderate reactive aggression, and low-moderate proactive aggression (Reactive-CU); and 5) Low prosocial behavior and high reactive and proactive aggression and CU (Aggressive CU). Profiles characterized by CU traits, reactive aggression, and low prosocial behavior were associated with the most problematic parent-rated social interaction and social status. The results highlight the need to differentiate profiles of psychopathology in children with DB to better address factors most associated with social functioning. PMID- 29034449 TI - Nitrous oxide-based vs. nitrous oxide-free general anaesthesia and accidental awareness in surgical patients: an abridged Cochrane systematic review. AB - Accidental awareness during general anaesthesia can arise from a failure to deliver sufficient anaesthetic agent, or from a patient's resistance to an expected sufficient dose of such an agent. Awareness is 'explicit' if the patient is subsequently able to recall the event. We conducted a systematic review into the effect of nitrous oxide used as part of a general anaesthetic on the risk of accidental awareness in people over the age of five years undergoing general anaesthesia for surgery. We included 15 randomised controlled trials, 14 of which, representing a total of 3439 participants, were included in our primary analysis of the frequency of accidental awareness events. The awareness incidence rate was rare within these studies, and all were considered underpowered with respect to this outcome. The risk of bias across all studies was judged to be high, and 76% of studies failed adequately to conceal participant allocation. We considered the available evidence to be of very poor quality. There were a total of three accidental awareness events reported in two studies, one of which reported that the awareness was the result of a kink in a propofol intravenous line. There were insufficient data to conduct a meta- or sub-group analysis and there was insufficient evidence to draw outcome-related conclusions. We can, however, recommend that future studies focus on potentially high-risk groups such as obstetric or cardiac surgery patients, or those receiving neuromuscular blocking drugs or total intravenous anaesthesia. PMID- 29034450 TI - New Onset Focal Stabbing Headache Associated With Peripheral Vertigo: A Case Report. AB - We present a novel case of a focal stabbing headache sharing features of primary stabbing headache that started and resolved with the onset and resolution of a course of self-limiting peripheral vertigo. The association of onset and improvement of the stabbing headaches support the trigeminal and vestibular reciprocal relationships. Vestibular input may be the driving force and a potential target for treatment. PMID- 29034451 TI - Cortical light scattering during interictal epileptic spikes in frontal lobe epilepsy in children: A fast optical signal and electroencephalographic study. AB - OBJECTIVE: Interictal epileptic spikes (IES) represent a signature of the transient synchronous and excessive discharge of a large ensemble of cortical heterogeneous neurons. Epilepsy cannot be reduced to a hypersynchronous activation of neurons whose functioning is impaired, resulting on electroencephalogram (EEG) in epileptic seizures or IES. The complex pathophysiological mechanisms require a global approach to the interactions between neural synaptic and nonsynaptic, vascular, and metabolic systems. In the present study, we focused on the interaction between synaptic and nonsynaptic mechanisms through the simultaneous noninvasive multimodal multiscale recording of high-density EEG (HD-EEG; synaptic) and fast optical signal (FOS; nonsynaptic), which evaluate rapid changes in light scattering related to changes in membrane configuration occurring during neuronal activation of IES. METHODS: To evaluate changes in light scattering occurring around IES, three children with frontal IES were simultaneously recorded with HD-EEG and FOS. To evaluate change in synchronization, time-frequency representation analysis of the HD-EEG was performed simultaneously around the IES. To independently evaluate our multimodal method, a control experiment with somatosensory stimuli was designed and applied to five healthy volunteers. RESULTS: Alternating increase-decrease-increase in optical signals occurred 200 ms before to 180 ms after the IES peak. These changes started before any changes in EEG signal. In addition, time-frequency domain EEG analysis revealed alternating decrease-increase-decrease in the EEG spectral power concomitantly with changes in the optical signal during IES. These results suggest a relationship between (de)synchronization and neuronal volume changes in frontal lobe epilepsy during IES. SIGNIFICANCE: These changes in the neuronal environment around IES in frontal lobe epilepsy observed in children, as they have been in rats, raise new questions about the synaptic/nonsynaptic mechanisms that propel the neurons to hypersynchronization, as occurs during IES. We further demonstrate that this noninvasive multiscale multimodal approach is suitable for studying the pathophysiology of the IES in patients. PMID- 29034452 TI - Innovation Incentives and Biomarkers. AB - Previously, we have discussed the importance of economic incentives in shaping markets for precision medicines. Here we consider incentives for biomarker development, including discovery and establishment. Biomarkers can reveal valuable information regarding diagnosis and prognosis, predict treatment efficacy or toxicity, serve as markers of disease progression, and serve as auxiliary endpoints for clinical trials. Some have multiple uses, while others have a specialized role, resulting in diverse incentives across players in the healthcare system. PMID- 29034453 TI - AVP-825 (Sumatriptan Nasal Powder) Reduces Nausea Compared to Sumatriptan Tablets: Results of the COMPASS Randomized Clinical Trial. AB - BACKGROUND: Migraine-related nausea is associated with significant disability, increased burden of disease, and personal distress. Nausea can lead to delays or avoidance of initiating oral migraine treatment, sometimes resulting in treatment failures and poor outcomes. Nausea is often a symptom of migraine, but nausea may also be a consequence of treatment (ie, treatment emergent nausea [TEN]). Relieving nausea and minimizing TEN are important goals in acute migraine therapy. METHODS: We analyzed data from the COMPASS study, a randomized, double blind, double-dummy, comparative efficacy study that contrasted two active treatments, AVP-825 (breath-powered intranasal delivery of powdered sumatriptan 22 mg) and oral sumatriptan tablets (100 mg). Three-level logistic multilevel models were used to examine longitudinal changes in nausea from three distinct perspectives across multiple attacks. Model 1 (Overall Nausea) examined longitudinal change in nausea from pre-dose through 120 minutes post-dose for the entire sample, independent of baseline nausea. Model 2 examined TEN from 10 minutes through 120 minutes post-dose in attacks free of nausea at baseline to investigate whether or not nausea developed following treatment. Model 3 examined Nausea Relief from 10 minutes through 120 minutes post-dose in eligible attacks with nausea at baseline to examine whether or not nausea was relieved over the first 2 hours post-dose. Models tested for differences in rate of change in nausea over time and odds of nausea at specific time-points. RESULTS: Longitudinal nausea trajectories differed for AVP-825 and oral sumatriptan in the Overall Nausea model (Model 1) and TEN model (Model 2), but were more comparable across treatments for the Nausea Relief (Model 3). More specifically, in the Overall Nausea model (Model 1), an individual treating an attack with AVP-825 had a significantly faster decrease in nausea through the first 60 minutes post-dose and reduced odds of nausea at each time-point from 30 minutes through 120 minutes post-dose compared to oral sumatriptan. In Model 2, an individual's risk for TEN increased at a significantly faster rate through the first 45 minutes post-dose when treating an attack with oral sumatriptan, with significantly greater odds of experiencing TEN at 45, 60, and 90 minutes post-dose compared to AVP-825. The Nausea Relief model (Model 3) showed similar rates of change in nausea over time for the two treatments, but there was a constant difference in nausea level leading to reduced odds of nausea when treating with AVP-825 compared to oral sumatriptan. CONCLUSIONS: All three longitudinal models showed that AVP-825 had more favorable nausea outcomes compared to oral sumatriptan. AVP-825 treatment led to more rapid early reductions in Overall Nausea rates during the first hour, reduced odds of nausea from 30 minutes to 2 hours following treatment and reduced risk of TEN compared to oral sumatriptan. These results highlight the importance of separately assessing TEN and Nausea Relief in acute treatment trials of migraine. PMID- 29034454 TI - Successful treatment of SAPHO syndrome with apremilast. AB - SAPHO (synovitis, acne, pustulosis, hyperostosis and osteitis) syndrome is a rare disease with inflammatory osteoarticular and skin involvement. The pathogenesis of SAPHO syndrome remains unclear, but evidence suggests it may be an autoinflammatory disease triggered upon exposure to infectious agents in genetically predisposed individuals. Induction of the interleukin (IL)-23/T helper 17 axis in addition to neutrophil activation seem to play a key role, and therapies targeting these immunological pathways, including tumour necrosis factor (TNF) inhibitors, ustekinumab, secukinumab and the IL-1 inhibitor anakinra, are potential treatment options that need further investigation. Here we report a case of a 24-year-old woman with SAPHO syndrome who presented at our clinic with palmoplantar pustulosis and sternoclavicular joint involvement. Previous treatments with topical steroids and keratolytics combined with nonsteroidal anti-inflammatory drugs, intravenous methylprednisolone, methotrexate and sulfasalazine had all failed to improve symptoms. Therapy with etanercept was not tolerated, and because of a previous demyelinating peripheral neuropathy, further treatment with TNF inhibitors was avoided. We initiated ustekinumab 45 mg, which improved skin manifestations but not joint pain. Dose escalation to 90 mg initially improved joint pain, but the dose had to be reduced to 45 mg again because of increased infections. During subsequent 45-mg ustekinumab treatment, joint pain exacerbated so we switched to adalimumab which caused an exacerbation of the disease, so we switched to secukinumab, which improved skin and joint symptoms significantly but was associated with a pustular hypersensitivity reaction. Finally, we began treatment with apremilast, a pan cytokine approach, resulting in stabilization of the skin and joint symptoms without side-effects. To our knowledge, this is the first case report of apremilast as a treatment for SAPHO syndrome. PMID- 29034455 TI - Diagnosis in the age of massive computing power. PMID- 29034456 TI - Trait-fitness relationships determine how trade-off shapes affect species coexistence. AB - Trade-offs between functional traits are ubiquitous in nature and can promote species coexistence depending on their shape. Classic theory predicts that convex trade-offs facilitate coexistence of specialized species with extreme trait values (extreme species) while concave trade-offs promote species with intermediate trait values (intermediate species). We show here that this prediction becomes insufficient when the traits translate non-linearly into fitness which frequently occurs in nature, e.g., an increasing length of spines reduces grazing losses only up to a certain threshold resulting in a saturating or sigmoid trait-fitness function. We present a novel, general approach to evaluate the effect of different trade-off shapes on species coexistence. We compare the trade-off curve to the invasion boundary of an intermediate species invading the two extreme species. At this boundary, the invasion fitness is zero. Thus, it separates trait combinations where invasion is or is not possible. The invasion boundary is calculated based on measurable trait-fitness relationships. If at least one of these relationships is not linear, the invasion boundary becomes non-linear, implying that convex and concave trade-offs not necessarily lead to different coexistence patterns. Therefore, we suggest a new ecological classification of trade-offs into extreme-favoring and intermediate-favoring which differs from a purely mathematical description of their shape. We apply our approach to a well-established model of an empirical predator-prey system with competing prey types facing a trade-off between edibility and half-saturation constant for nutrient uptake. We show that the survival of the intermediate prey depends on the convexity of the trade-off. Overall, our approach provides a general tool to make a priori predictions on the outcome of competition among species facing a common trade-off in dependence of the shape of the trade-off and the shape of the trait-fitness relationships. PMID- 29034457 TI - Regenerative Musculoskeletal Care: Ensuring Practice Implementation. PMID- 29034460 TI - Culture and Family Process: Measures of Familism for Filipino and Korean American Parents. AB - This study tests the psychometric properties of multiple survey items and scales that are either underused or newly developed to assess familism among Asian Americans. Using data collected from 150 Filipino and 188 Korean American parents (mostly mothers) in the Midwest region in 2013, the measures were examined for validity and reliability for each group and, when appropriate, for cross-cultural equivalence across the groups. Several scales and their items showed high quality psychometric properties and are ready for use to more accurately assess family process of each target group and to conduct comparative analyses. The findings also show that, contrary to the expectation, Filipino American families express more traditional aspects of familism than do Korean American families, and are more likely to reinforce traditional familism beliefs and behaviors among their children. This study reinforces a need for more empirical- and subgroup-specific research effort. PMID- 29034461 TI - The Migraine Attack as a Homeostatic, Neuroprotective Response to Brain Oxidative Stress: Preliminary Evidence for a Theory. AB - BACKGROUND: Previous research has suggested that migraineurs show higher levels of oxidative stress (lipid peroxides) between migraine attacks and that migraine triggers may further increase brain oxidative stress. Oxidative stress is transduced into a neural signal by the TRPA1 ion channel on meningeal pain receptors, eliciting neurogenic inflammation, a key event in migraine. Thus, migraines may be a response to brain oxidative stress. RESULTS: In this article, a number of migraine components are considered: cortical spreading depression, platelet activation, plasma protein extravasation, endothelial nitric oxide synthesis, and the release of serotonin, substance P, calcitonin gene-related peptide, and brain-derived neurotrophic factor. Evidence is presented from in vitro research and animal and human studies of ischemia suggesting that each component has neuroprotective functions, decreasing oxidant production, upregulating antioxidant enzymes, stimulating neurogenesis, preventing apoptosis, facilitating mitochondrial biogenesis, and/or releasing growth factors in the brain. Feedback loops between these components are described. Limitations and challenges to the model are discussed. CONCLUSIONS: The theory is presented that migraines are an integrated defensive, neuroprotective response to brain oxidative stress. PMID- 29034459 TI - Amelioration of autoimmunity with an inhibitor selectively targeting all active centres of the immunoproteasome. AB - BACKGROUND AND PURPOSE: Multicatalytic endopeptidase complex-like-1 (beta2i), low molecular mass polypeptide (LMP) 2 (beta1i) and LMP7 (beta5i) are the proteolytically active subunits of the immunoproteasome, a special type of proteasome mainly expressed in haematopoietic cells. Targeting LMP7 has been shown to be therapeutically effective in preclinical models of autoimmune diseases. In this study, we investigated the selectivity and biological activity of LU-005i, a recently described inhibitor of the immunoproteasome. EXPERIMENTAL APPROACH: The specificity of LU-005i and other immunoproteasome-selective inhibitors was characterized using fluorogenic peptide substrates. The effect of proteasome inhibition on cytokine release was investigated in endotoxin stimulated mouse splenocytes or human peripheral blood mononuclear cells (PBMCs). The effect of proteasome inhibition on inflammatory bowel disease in the dextran sulfate sodium (DSS)-induced colitis model was assessed by measuring weight loss and colon length. KEY RESULTS: LU-005i is the first human and mouse immunoproteasome-selective inhibitor that targets all three proteolytically active immunoproteasome subunits. LU-005i inhibited cytokine secretion from endotoxin-stimulated mouse splenocytes or human PBMCs. Furthermore, differentiation of naive T helper cells to T helper 17 cells was impaired in the presence of LU-005i. Additionally, LU-005i ameliorated DSS-induced colitis. CONCLUSION AND IMPLICATIONS: This study with a novel pan-immunoproteasome inhibitor substantiates that the immunoproteasome is a promising drug target for the treatment of inflammatory diseases and that exclusive inhibition of LMP7 is not necessary for therapeutic effectiveness. Our results will promote the design of new generations of immunoproteasome inhibitors with optimal therapeutic efficacy for clinical use in the treatment of autoimmunity and cancer. PMID- 29034462 TI - A Model-Based Cluster Analysis of Maternal Emotion Regulation and Relations to Parenting Behavior. AB - In a diverse community sample of mothers (N = 108) and their preschool-aged children (Mage = 3.50 years), this study conducted person-oriented analyses of maternal emotion regulation (ER) based on a multimethod assessment incorporating physiological, observational, and self-report indicators. A model-based cluster analysis was applied to five indicators of maternal ER: maternal self-report, observed negative affect in a parent-child interaction, baseline respiratory sinus arrhythmia (RSA), and RSA suppression across two laboratory tasks. Model based cluster analyses revealed four maternal ER profiles, including a group of mothers with average ER functioning, characterized by socioeconomic advantage and more positive parenting behavior. A dysregulated cluster demonstrated the greatest challenges with parenting and dyadic interactions. Two clusters of intermediate dysregulation were also identified. Implications for assessment and applications to parenting interventions are discussed. PMID- 29034463 TI - Statin treatment may lower the risk of postradiation epilepsy in patients with nasopharyngeal carcinoma. AB - OBJECTIVE: This study aimed to clarify the effect of statins on preventing the risk of postradiation epilepsy. METHODS: We performed a retrospective analysis of neurological nasopharyngeal carcinoma patients with a history of radiotherapy. Patients with a history of epilepsy before radiation and those who received prophylactically antiepileptic treatment were excluded. The demographic and clinical data of these patients were collected through chart review. We used Kaplan-Meier analysis (log-rank test) to examine the effect of statins on epilepsy-free survival. Cox regression analysis was utilized to identify independent predictive variables. RESULTS: Our study included 532 patients (405 males and 127 females) with a mean follow-up of 28.1 months. During follow-up, 471 (88.5%) patients developed radiation-induced brain necrosis (RN). Within a mean latency of 24.1 months, 88 (16.5%) patients experienced epilepsy, of whom 27 (27 of 88, 30.7%) patients suffered from epilepsy before the diagnosis of RN. Thirty-six (36 of 88, 40.9%) cases of epilepsy occurred after RN onset, and in 22 cases (22 of 88, 25.0%) epilepsy was the first presentation of RN. Three patients suffered from epilepsy but did not have RN. Eighty-eight patients in our cohort were treated with statins because of hyperlipidemia or prevention of cardiocerebrovascular diseases, of whom six (6.8%) developed epilepsy, whereas in those without statin, the epileptic rate was 18.5%. Log-rank test found that there was a significant difference in epilepsy-free survival between patients who used statins and those who did not (p = 0.016). After adjusting for confounding variables, multivariate Cox regression analysis revealed that statin use could still significantly reduce the risk of epilepsy after radiation (hazard ratio = 0.36, 95% confidence interval = 0.15-0.82, p = 0.015). However, for the patients who already suffered from RN, statin treatment did not lower the risk of post-RN epilepsy. SIGNIFICANCE: Early statin use may reduce the risk of postradiotherapy epilepsy in patients with nasopharyngeal carcinoma. PMID- 29034464 TI - Stigma, Expressed Emotion, and Quality of Life in Caregivers of Individuals with Dementia. AB - Expressed emotion (EE) is a measure of a caregiver's critical and emotionally overinvolved (EOI; e.g., intrusive, self-sacrificing) attitudes and behaviors toward a person with a mental illness. Mounting evidence indicates that high levels of these critical and EOI attitudes and behaviors (collectively termed high EE) in family members are associated with a poorer course of illness for people with a range of disorders, including dementia (Nomura et al., 2005). However, less is known about factors that might trigger high EE and how high EE might impact dementia caregivers' own mental health. In this study we propose that caregivers who perceive stigma from their relative's illness may be more likely to be critical or intrusive (high EOI) toward their relative in an attempt to control symptomatic behaviors. We further hypothesized that high EE would partially mediate the link between stigma and quality of life (QoL) as there is some evidence that high EE is associated with poorer mental health in caregivers themselves (Safavi et al., 2015). In line with study hypotheses and using a sample of 106 dementia caregivers, we found that greater caregiver stigma was associated with both high EE (for criticism and EOI) and with poorer QoL. Mediational analyses further confirmed that high EE accounts for much of the association between stigma and poorer QoL. Study results suggest that addressing caregiver stigma in therapy could reduce levels of high EE and indirectly therefore improve caregiver QoL. Intervening directly to reduce high EE could also improve caregiver QoL. PMID- 29034465 TI - Gene expression trade-offs between defence and growth in English elm induced by Ophiostoma novo-ulmi. AB - Wilt diseases caused by vascular pathogens include some of the most damaging stresses affecting trees. Dutch elm disease (DED), caused by the fungus Ophiostoma novo-ulmi, destroyed most of North American and European elm populations in the 20th century. The highly susceptible English elm, also known as Atinian clone, suffered the highest mortality rates during the last pandemic event, probably due to its lack of genetic diversity. To study the DED pathosystem, we inoculated English elm ramets with O. novo-ulmi and evaluated xylem anatomy, molecular response, and disease symptoms. The high DED susceptibility of the clone was linked to xylem structure. The transcript levels changed significantly for 1,696 genes during O. novo-ulmi invasion. Genes covering different steps of the plant immune system were identified, many of which showed homology with Arabidopsis thaliana genes involved in systemic acquired resistance. Induction of several pathogenesis-related proteins and repression of fasciclin-like arabinogalactan proteins and other cell wall biosynthesis pathways evidence unbalanced costs between growth and defence mechanisms far from the inoculation point. This study sheds light on elm molecular defence mechanisms against DED. PMID- 29034466 TI - Biological observations on the broadfin shark Lamiopsis temminckii (Carcharhiniformes: Carcharhinidae). AB - Biological information was collected from 214 individuals of the broadfin shark Lamiopsis temminckii measuring 418 to 1782 mm total length, LT . Size at maturity (L50 ) for females and males was estimated at 1430 and 1368 mm LT , respectively, while mature and gravid females were observed from 1350 mm LT with litter sizes 2 8 and size at birth 418-650 mm LT . Analysis of stomach contents revealed a variety of prey, primarily crustaceans (54.0%), teleosts (42.7%) and cephalopods. PMID- 29034467 TI - First insights into the function of the sawshark rostrum through examination of rostral tooth microwear. AB - Potential roles of the rostrum of sawsharks (Pristiophoridae), including predation and self-defence, were assessed through a variety of inferential methods. Comparison of microwear on the surface of the rostral teeth of sawsharks and sawfishes (Pristidae) show that microwear patterns are alike and suggest that the elongate rostra in these two elasmobranch families are used for a similar purpose (predation). Raman spectroscopy indicates that the rostral teeth of both sawsharks and sawfishes are composed of hydroxyapatite, but differ in their collagen content. Sawfishes possess collagen throughout their rostral teeth whereas collagen is present only in the centre of the rostral teeth of sawsharks, which may relate to differences in ecological use. The ratio of rostrum length to total length in the common sawshark Pristiophorus cirratus was found to be similar to the largetooth sawfish Pristis pristis but not the knifetooth sawfish Anoxypristis cuspidata. Analysis of the stomach contents of P. cirratus indicates that the diet consists of demersal fishes and crustaceans, with shrimp from the family Pandalidae being the most important dietary component. No prey item showed evidence of wounds inflicted by the rostral teeth. In light of the similarities in microwear patterns, rostral tooth chemistry and diet with sawfishes, it is hypothesised that sawsharks use their rostrum in a similar manner for predation (sensing and capturing prey) and possibly for self-defence. PMID- 29034468 TI - Using the common marmoset for neurophysiological studies of neocortical functions. PMID- 29034469 TI - Effect of mono-(2-ethylhexyl) phthalate (MEHP) on proliferation of and steroid hormone synthesis in rat ovarian granulosa cells in vitro. AB - This study aimed to examine the proliferation of and secretion by rat ovarian granulosa cells (GCs) treated with mono-(2-ethylhexyl) phthalate (MEHP). Ovarian GCs were incubated with MEHP at concentration of 0, 25, 50, 100, and 200 uM for 24 hr. Cell viability was determined using the MTT Cell Proliferation Assay. Progesterone and estradiol production was evaluated by radioimmunoassay (RIA) and the expression of FSHR, PR, and ER was measured by immunocytochemistry. StAR, P450scc, 3beta-HSD, 17beta-HSD, and P450 arom mRNA levels were determined by RT PCR. MEHP markedly attenuated proliferation of GCs, increased expression of sex hormone receptors and key enzymes in progesterone production, and stimulated steroid hormone secretion. The result of these analyses demonstrates that MEHP exposure of GCs may have effects on rat ovarian functions. PMID- 29034470 TI - Involvement of the Nrf2/HO-1/CO axis and therapeutic intervention with the CO releasing molecule CORM-A1, in a murine model of autoimmune hepatitis. AB - Concanavalin A (ConA)-induced hepatitis is an experimental model of human autoimmune hepatitis induced in rodents by i.v. injection of Con A. The disease is characterized by increase in serum levels of transaminases and massive immune infiltration of the livers. Type 1, type 2, and type 17 cytokines play a pathogenic role in the development of ConA-induced hepatitis. To understand further the immunoregulatory mechanisms operating in the development and regulation of ConA-induced hepatitis, we have evaluated the role of the anti inflammatory pathway Nrf2/HO-1/CO (Nuclear Factor E2-related Factor 2/Heme Oxygenase-1/Carbon Monoxide) in this condition and determined whether the in vivo administration of CO via the CO-releasing molecule (CORM) CORM-A1, influences serological and histological development of Con-A-induced hepatitis. We have firstly evaluated in silico the genes belonging to the Nrf2/HO-1/CO pathway that are involved in the pathogenesis of autoimmune hepatitis (AIH). The data obtained from the in silico study demonstrate that a significant number of genes modulated in the liver of ConA-challenged mice belong to the Nrf2 pathway; on the other hand, the administration of CORM-A1 determines an improvement in several sero immunological and histological parameters, and it is able to modulate genes identified by the in silico analysis. Collectively, our data indicate that the Nrf2/HO-1/CO pathway is fundamental for the regulation of the immune responses, and that therapeutic intervention aimed at its modulation by CORM-A1 may represent a valuable strategy to be considered for the treatment of autoimmune hepatitis in humans. PMID- 29034472 TI - Protective effects of curcumin against aflatoxicosis: A comprehensive review. AB - Aflatoxicosis is a deleterious medical condition that results from aflatoxins (AFs) or ochratoxins (OTs). Contamination with these toxins exerts detrimental effects on the liver, kidneys, reproductive organs, and also on immunological and cardiovascular systems. Aflatoxicosis is closely associated with overproduction of reactive oxygen species (ROS) as key contributors to oxidative and nitrosative stress responses, and subsequent damages to lipids, proteins, RNA, and DNA. The main target organ for AF toxicity is the liver, where DNA adducts, degranulation of endoplasmic reticulum, increased hepatic lipid peroxide, GSH depletion, mitochondrial dysfunction, and reduction of enzymatic and non-enzymatic antioxidants are manifestations of aflatoxicosis. Curcuma longa L. (turmeric) is a medicinal plant widely utilized all over the world for culinary and phytomedical purposes. Considering the antioxidant characteristic of curcumin, the main active component of turmeric, this review is intended to critically summarize the available evidence supporting possible effectiveness of curcumin against aflatoxicosis. Curcumin can serve as a promising candidate for attenuation of the adverse consequences of aflatoxicosis, acting mainly through intrinsic antioxidant effects aroused from its structure, modulation of the immune system as reflected by interleukin-1beta and transforming growth factor beta, and interfering with AF's biotransformation by cytochrome P450 isoenzymes CYP1A, CYP3A, CYP2A, CYP2B, and CYP2C. PMID- 29034471 TI - Lipid signaling affects primary fibroblast collective migration and anchorage in response to stiffness and microtopography. AB - Cell migration is regulated by several mechanotransduction pathways, which consist of sensing and converting mechanical microenvironmental cues to internal biochemical cellular signals, such as protein phosphorylation and lipid signaling. While there has been significant progress in understanding protein changes in the context of mechanotransduction, lipid signaling is more difficult to investigate. In this study, physical cues of stiffness (10, 100, 400 kPa, and glass), and microrod or micropost topography were manipulated in order to reprogram primary fibroblasts and assess the effects of lipid signaling on the actin cytoskeleton. In an in vitro wound closure assay, primary cardiac fibroblast migration velocity was significantly higher on soft polymeric substrata. Modulation of PIP2 availability through neomycin treatment nearly doubled migration velocity on 10 kPa substrata, with significant increases on all stiffnesses. The distance between focal adhesions and the lamellar membrane (using wortmannin treatment to increase PIP2 via PI3K inhibition) was significantly shortest compared to untreated fibroblasts grown on the same surface. PIP2 localized to the leading edge of migrating fibroblasts more prominently in neomycin-treated cells. The membrane-bound protein, lamellipodin, did not vary under any condition. Additionally, fifteen micron-high micropost topography, which blocks migration, concentrates PIP2 near to the post. Actin dynamics within stress fibers, measured by fluorescence recovery after photobleaching, was not significantly different with stiffness, microtopography, nor with drug treatment. PIP2-modulating drugs delivered from microrod structures also affected migration velocity. Thus, manipulation of the microenvironment and lipid signaling regulatory drugs might be beneficial in improving therapeutics geared toward wound healing. PMID- 29034473 TI - Development and maturation of the fibrous components of the arterial roots in the mouse heart. AB - The arterial roots are important transitional regions of the heart, connecting the intrapericardial components of the aortic and pulmonary trunks with their ventricular outlets. They house the arterial (semilunar) valves and, in the case of the aorta, are the points of coronary arterial attachment. Moreover, because of the semilunar attachments of the valve leaflets, the arterial roots span the anatomic ventriculo-arterial junction. By virtue of this arrangement, the interleaflet triangles, despite being fibrous, are found on the ventricular aspect of the root and located within the left ventricular cavity. Malformations and diseases of the aortic root are common and serious. Despite the mouse being the animal model of choice for studying cardiac development, few studies have examined the structure of their arterial roots. As a consequence, our understanding of their formation and maturation is incomplete. We set out to clarify the anatomical and histological features of the mouse arterial roots, particularly focusing on their walls and the points of attachment of the valve leaflets. We then sought to determine the embryonic lineage relationships between these tissues, as a forerunner to understanding how they form and mature over time. Using histological stains and immunohistochemistry, we show that the walls of the mouse arterial roots show a gradual transition, with smooth muscle cells (SMC) forming the bulk of wall at the most distal points of attachments of the valve leaflets, while being entirely fibrous at their base. Although the interleaflet triangles lie within the ventricular chambers, we show that they are histologically indistinguishable from the arterial sinus walls until the end of gestation. Differences become apparent after birth, and are only completed by postnatal day 21. Using Cre-lox-based lineage tracing technology to label progenitor populations, we show that the SMC and fibrous tissue within the walls of the mature arterial roots share a common origin from the second heart field (SHF) and exclude trans-differentiation of myocardium as a source for the interleaflet triangle fibrous tissues. Moreover, we show that the attachment points of the leaflets to the walls, like the leaflets themselves, are derived from the outflow cushions, having contributions from both SHF-derived endothelial cells and neural crest cells. Our data thus show that the arterial roots in the mouse heart are similar to the features described in the human heart. They provide a framework for understanding complex lesions and diseases affecting the aortic root. PMID- 29034474 TI - Altered NMDA receptor-evoked intracellular Ca2+ dynamics in magnocellular neurosecretory neurons of hypertensive rats. AB - KEY POINTS: NMDA receptor (NMDAR)-mediated Ca2+ signalling plays a critical role in modulating hypothalamic neurosecretory function. However, whether an altered NMDAR-evoked changes in Ca2+ (NMDAR-DeltaCa2+ ) signalling in magnocellular neurosecretory cells (MNCs) may contribute to neurohumoral activation during disease states is unknown. We show that activation of NMDARs evoked similar inward currents in MNCs of sham and renovascular hypertensive (RVH) rats. Despite this, a prolonged and larger NMDAR-DeltaCa2+ response was observed in the latter. The exacerbated NMDAR-DeltaCa2+ responses in MNCs of RVH rats affected both somatic and dendritic compartments. Inhibition of the endoplasmic reticulum sarcoendoplasmic reticulum calcium trasport ATPase (SERCA) pump prolonged NMDAR DeltaCa2+ responses in sham rats, but not in RVH rats. Our study supports an altered spatiotemporal dynamic of NMDAR-DeltaCa2+ signalling in MNCs from RVH rats, partly due to blunted endoplasmic reticulum Ca2+ buffering capacity. ABSTRACT: A growing body of evidence supports an elevated NMDA receptor (NMDAR) mediated glutamate excitatory function in the supraoptic nucleus and paraventricular nucleus of hypertensive rats that contributes to neurohumoral activation in this disease. However, the precise mechanisms underlying altered NMDAR signalling in hypertension remain to be elucidated. In this study, we performed simultaneous electrophysiology and fast confocal Ca2+ imaging to determine whether altered NMDAR-mediated changes in intracellular Ca2+ levels (NMDAR-DeltaCa2+ ) occurred in hypothalamic magnocellular neurosecretory cells (MNCs) in renovascular hypertensive (RVH) rats. We found that despite evoking a similar excitatory inward current, activation of NMDARs resulted in a larger and prolonged DeltaCa2+ in MNCs from RVH rats. Changes in NMDAR-DeltaCa2+ dynamics were observed both in somatic and dendritic compartments. Inhibition of the sarcoendoplasmic reticulum calcium trasport ATPase (SERCA) pump activity with thapsigargin prolonged NMDAR-DeltaCa2+ responses in MNCs of sham rats, but this effect was occluded in RVH rats, thus equalizing the magnitude and time course of the NMDA-DeltaCa2+ responses between the two experimental groups. Taken together, our results support (1) an exacerbated NMDAR-DeltaCa2+ response in somatodendritic compartments of MNCs of RVH rats, and (2) that a blunted ER Ca2+ buffering capacity contributes to the altered NMDAR-DeltaCa2+ dynamics in this condition. Thus, altered spatiotemporal dynamics of the NMDAR-DeltaCa2+ response stands as an underlying mechanism contributing to neurohumoral activation in neurogenic hypertension. PMID- 29034476 TI - Third molor extractions among Australian adults: findings from the 2013 National Dental Telephone Interview Survey. AB - OBJECTIVES: To identify, over the previous 12 months, whether: (i) dental insurance is associated with a higher number of third molar extractions (TME); (ii) single versus multiple TME is associated with self-rated oral health; and (iii) TME when 18-25 years of age is associated with fewer days absent from work because of dental problems. METHODOLOGY: Australia's 2013 National Dental Telephone Interview Survey, which included: socio-demographics; and number of extractions, reasons for extractions, self-rated oral health and days absent from work because of dental problems, all in the past 12 months. RESULTS: The majority of TME recipients were female [56.6%, standard error (SE) = 6.0%], 18-25 years of age (63.0%, SE = 5.4%), held a tertiary qualification (73.9%, SE = 5.4%), had a total annual household income of >=$60,000 (58.3%, SE = 6.4%), were dentally insured (52.6%, SE = 6.2%) and received multiple TME (60.9%, SE = 8.5%). Number of TME was associated with having dental insurance [B = 0.97: 95% confidence interval (95% CI): 0.5-1.5] and days of work absence because of dental problems (B = 1.10; 95% CI: 0.26-1.94). Receiving single TME versus multiple TME was not associated with self-rated oral health (B = -0.25; 95% CI: -0.76 to 0.25). Receiving TME when 18-25 years of age versus when older than 25 years of age was not associated with days absent from work because of dental problems (B = 0.48; 95% CI: -0.37 to 2.33). CONCLUSION: Dental insurance was associated with a higher TME count without improving self-reported oral health in the short-term. Using age as a justification for prophylactic TME might be questionable because, receiving TME when 18-25 years of age versus when older than 25 years of age did not reduce days absent from work because of dental problems. PMID- 29034475 TI - 2D:4D digit ratio is not a biomarker of developmental programming in baboons (Papio hamadryas species). AB - We hypothesized second-to-fourth hand digit ratio (2D:4D) is a biomarker of developmental programming in 3 baboon groups: intrauterine growth restriction (7 females, 8 males), exposure during fetal life to synthetic glucocorticoids (4 females, 5 males), and controls (66 females, 20 males). 2D:4D was similar between sexes and groups. PMID- 29034477 TI - Hybrid bodies and the materiality of everyday life: how people living with pacemakers and defibrillators reinvent everyday routines and intimate relations. AB - Technologies inside bodies pose new challenges in a technological culture. For people with pacemakers and defibrillators, activities such as passing security controls at airports, using electromagnetic machines, electrical domestic appliances and electronic devices, and even intimate contacts with their loved ones can turn into events where the proper functioning of their device may be at risk. Anticipation of potentially harmful events and situations thus becomes an important part of the choreography of everyday life. Technologies inside bodies not only pose a challenge for patients living with these devices but also to theorising body-technology relations. Whereas researchers usually address the merging of bodies and technologies, implants ask us to do the opposite as well. How are we to understand human-technology relations in which technologies should not entangle with bodies because they serve other purposes? Based on a study of the daily life practices of people with pacemakers and defibrillators in the Netherlands and the US, I argue that disentanglement work, i.e. work involved to prevent entanglements with objects and people that may inflict harm upon implanted devices, is key to understanding how hybrid bodies can survive in today's densely populated technological landscape. PMID- 29034480 TI - Antioxidant therapy in a mouse model of Duchenne muscular dystrophy: some promising results but with a weighty caveat. PMID- 29034479 TI - Scaling of the ankle extensor muscle-tendon units and the biomechanical implications for bipedal hopping locomotion in the post-pouch kangaroo Macropus fuliginosus. AB - Bipedal hopping is used by macropods, including rat-kangaroos, wallabies and kangaroos (superfamily Macropodoidea). Interspecific scaling of the ankle extensor muscle-tendon units in the lower hindlimbs of these hopping bipeds shows that peak tendon stress increases disproportionately with body size. Consequently, large kangaroos store and recover more strain energy in their tendons, making hopping more efficient, but their tendons are at greater risk of rupture. This is the first intraspecific scaling analysis on the functional morphology of the ankle extensor muscle-tendon units (gastrocnemius, plantaris and flexor digitorum longus) in one of the largest extant species of hopping mammal, the western grey kangaroo Macropus fuliginosus (5.8-70.5 kg post-pouch body mass). The effective mechanical advantage of the ankle extensors does not vary with post-pouch body mass, scaling with an exponent not significantly different from 0.0. Therefore, larger kangaroos balance rotational moments around the ankle by generating muscle forces proportional to weight-related gravitational forces. Maximum force is dependent upon the physiological cross sectional area of the muscle, which we found scales geometrically with a mean exponent of only 0.67, rather than 1.0. Therefore, larger kangaroos are limited in their capacity to oppose large external forces around the ankle, potentially compromising fast or accelerative hopping. The strain energy return capacity of the ankle extensor tendons increases with a mean exponent of ~1.0, which is much shallower than the exponent derived from interspecific analyses of hopping mammals (~1.4-1.9). Tendon safety factor (ratio of rupture stress to estimated peak hopping stress) is lowest in the gastrocnemius (< 2), and it decreases with body mass with an exponent of -0.15, extrapolating to a predicted rupture at 160 kg. Extinct giant kangaroos weighing 250 kg could therefore not have engaged in fast hopping using 'scaled-up' lower hindlimb morphology of extant western grey kangaroos. PMID- 29034481 TI - Stagewise multidimensional visual discrimination by pigeons. AB - We trained six pigeons in a stagewise Multiple Necessary Cues (MNC) go/no-go task to document the dynamics of discrimination learning involving increasingly complex visual stimuli. The compound stimuli were composed from four dimensions, each of which could assume either of two extreme values or their intermediate value: Shape, Size, Line Orientation, and Brightness. Starting with a stimulus composed entirely from intermediate values, we replaced those values with each of the two extreme dimensional values in four successive stages, thereby increasing the stimulus set from 2 in Stage 1 to 16 in Stage 4. In each stage, only one combination of values signaled food (S+ ), whereas the remaining combinations did not (S- s). We calculated the rate of pecking during the first 15 s of each stimulus presentation and, in any given stage, training continued until the rate of responding to all of the S- s was less than 20% of the rate of responding to the S+ . All pigeons successfully acquired the final discrimination, suggesting that they attended to all of the dimensions relevant for the discrimination. We also replicated the key results of prior MNC studies: (1) the number of extreme dimensional values in each stage was positively related to the amount of training required for pigeons to acquire the discrimination; (2) attentional tradeoffs were most often observed when three or four dimensions were being trained; and (3) throughout training, the number of dimensional values in the S- s that differed from the S+ was positively related to their discriminability from S+ . PMID- 29034482 TI - Deep reinforcement learning for automated radiation adaptation in lung cancer. AB - PURPOSE: To investigate deep reinforcement learning (DRL) based on historical treatment plans for developing automated radiation adaptation protocols for nonsmall cell lung cancer (NSCLC) patients that aim to maximize tumor local control at reduced rates of radiation pneumonitis grade 2 (RP2). METHODS: In a retrospective population of 114 NSCLC patients who received radiotherapy, a three component neural networks framework was developed for deep reinforcement learning (DRL) of dose fractionation adaptation. Large-scale patient characteristics included clinical, genetic, and imaging radiomics features in addition to tumor and lung dosimetric variables. First, a generative adversarial network (GAN) was employed to learn patient population characteristics necessary for DRL training from a relatively limited sample size. Second, a radiotherapy artificial environment (RAE) was reconstructed by a deep neural network (DNN) utilizing both original and synthetic data (by GAN) to estimate the transition probabilities for adaptation of personalized radiotherapy patients' treatment courses. Third, a deep Q-network (DQN) was applied to the RAE for choosing the optimal dose in a response-adapted treatment setting. This multicomponent reinforcement learning approach was benchmarked against real clinical decisions that were applied in an adaptive dose escalation clinical protocol. In which, 34 patients were treated based on avid PET signal in the tumor and constrained by a 17.2% normal tissue complication probability (NTCP) limit for RP2. The uncomplicated cure probability (P+) was used as a baseline reward function in the DRL. RESULTS: Taking our adaptive dose escalation protocol as a blueprint for the proposed DRL (GAN + RAE + DQN) architecture, we obtained an automated dose adaptation estimate for use at ~2/3 of the way into the radiotherapy treatment course. By letting the DQN component freely control the estimated adaptive dose per fraction (ranging from 1 5 Gy), the DRL automatically favored dose escalation/de-escalation between 1.5 and 3.8 Gy, a range similar to that used in the clinical protocol. The same DQN yielded two patterns of dose escalation for the 34 test patients, but with different reward variants. First, using the baseline P+ reward function, individual adaptive fraction doses of the DQN had similar tendencies to the clinical data with an RMSE = 0.76 Gy; but adaptations suggested by the DQN were generally lower in magnitude (less aggressive). Second, by adjusting the P+ reward function with higher emphasis on mitigating local failure, better matching of doses between the DQN and the clinical protocol was achieved with an RMSE = 0.5 Gy. Moreover, the decisions selected by the DQN seemed to have better concordance with patients eventual outcomes. In comparison, the traditional temporal difference (TD) algorithm for reinforcement learning yielded an RMSE = 3.3 Gy due to numerical instabilities and lack of sufficient learning. CONCLUSION: We demonstrated that automated dose adaptation by DRL is a feasible and a promising approach for achieving similar results to those chosen by clinicians. The process may require customization of the reward function if individual cases were to be considered. However, development of this framework into a fully credible autonomous system for clinical decision support would require further validation on larger multi-institutional datasets. PMID- 29034485 TI - Decision theory for comparing institutions. AB - Various forms of performance assessment are applied to public service institutions, such as hospitals, schools, police units, and local authorities. Difficulties arise in the interpretation of the results presented in some established formats because they require a good understanding and appreciation of the uncertainties involved. Usually the results have to be adapted to the perspectives of the users-managers of the assessed units, a consumer, or a central authority (a watchdog) that dispenses awards and sanctions. We present a decision-theoretical approach to these and related problems in which the perspectives are integrated in the analysis and its results are choices from a finite list of options (alternative courses of action). PMID- 29034483 TI - Effect of sensory and motor connectivity on hand function in pediatric hemiplegia. AB - OBJECTIVE: We tested the hypothesis that somatosensory system injury would more strongly affect movement than motor system injury in children with unilateral cerebral palsy (USCP). This hypothesis was based on how somatosensory and corticospinal circuits adapt to injury during development; whereas the motor system can maintain connections to the impaired hand from the uninjured hemisphere, this does not occur in the somatosensory system. As a corollary, cortical injury strongly impairs sensory function, so we hypothesized that cortical lesions would impair hand function more than subcortical lesions. METHODS: Twenty-four children with unilateral cerebral palsy had physiological and anatomical measures of the motor and somatosensory systems and lesion classification. Motor physiology was performed with transcranial magnetic stimulation and somatosensory physiology with vibration-evoked electroencephalographic potentials. Tractography of the corticospinal tract and the medial lemniscus was performed with diffusion tensor imaging, and lesions were classified by magnetic resonance imaging. Anatomical and physiological results were correlated with measures of hand function using 2 independent statistical methods. RESULTS: Children with disruptions in the somatosensory connectivity and cortical lesions had the most severe upper extremity impairments, particularly somatosensory function. Motor system connectivity was significantly correlated with bimanual function, but not unimanual function or somatosensory function. INTERPRETATION: Both sensory and motor connectivity impact hand function in children with USCP. Somatosensory connectivity could be an important target for recovery of hand function in children with USCP. Ann Neurol 2017;82:766-780. PMID- 29034484 TI - Dissecting gene-environment interactions: A penalized robust approach accounting for hierarchical structures. AB - Identification of gene-environment (G * E) interactions associated with disease phenotypes has posed a great challenge in high-throughput cancer studies. The existing marginal identification methods have suffered from not being able to accommodate the joint effects of a large number of genetic variants, while some of the joint-effect methods have been limited by failing to respect the "main effects, interactions" hierarchy, by ignoring data contamination, and by using inefficient selection techniques under complex structural sparsity. In this article, we develop an effective penalization approach to identify important G * E interactions and main effects, which can account for the hierarchical structures of the 2 types of effects. Possible data contamination is accommodated by adopting the least absolute deviation loss function. The advantage of the proposed approach over the alternatives is convincingly demonstrated in both simulation and a case study on lung cancer prognosis with gene expression measurements and clinical covariates under the accelerated failure time model. PMID- 29034486 TI - 'Everyone assumes a man to be quite strong': Men, masculinity and rheumatoid arthritis: A case-study approach. AB - Current literature has overlooked the impact of chronic illness on masculine identity. We therefore aimed to investigate the impact of rheumatoid arthritis (a long term condition, affecting more women than men) on masculine identity. Six focus groups with 22 men with rheumatoid arthritis (RA) (data reported elsewhere) followed by five one-to-one interviews with men (English, mean age: 59 years) sampled to reflect a heterogeneous experience of life with RA based on knowledge gained from the focus groups. Transcripts were analysed using thematic analysis and are presented as individual case studies. Whilst the case studies provide five distinct experiences, common themes can be drawn across them, such as the importance of paid work. The men needed to renegotiate their masculine identity to deal with their RA. Two dealt with this by pushing through pain to retain masculine activities, two replaced masculine roles they could no longer do with other roles, and one rejected masculinity completely. Men with long term conditions may need to re-write their masculinity scripts to enable them to accept and adapt to their condition. However, some men struggle with this, which should be taken into consideration when designing self-management services for men with long term conditions. PMID- 29034487 TI - The role of spontaneous neurotransmission in synapse and circuit development. AB - In the past, the spontaneous release of neurotransmitter from presynaptic terminals has been thought of as a side effect of evoked release, with little functional significance. As our understanding of the process of spontaneous release has increased over time, this notion has gradually changed. In this review, we focus on the importance of this form of release during neuronal development, a time of extreme levels of plasticity that includes the growth of dendrites and axons as well as the formation of new synaptic contacts. This period also encompasses high levels of neurotransmitter release from growing axons, and recent studies have found that spontaneous transmitter release plays an important role in shaping neuronal morphology as well as modulating the properties of newly forming synaptic contacts in the brain. Here, we bring together the latest findings across different species to argue that the spontaneous release of neurotransmitter is an important player in the wiring of the brain during development. PMID- 29034488 TI - Exploiting whole genome sequence data to fine map and characterize candidate genes within a quantitative trait loci region affecting androstenone on porcine chromosome 5. AB - Male piglets are routinely castrated to eliminate boar taint. However, this treatment is undesirable, and alternative approaches, including genetic strategies to reduce boar taint, are demanded. Androstenone is one of the causative agents of boar taint, and a QTL region affecting this pheromone has previously been reported on SSC5: 22.6-24.8 Mb in Duroc. The QTL region is one of the few reported for androstenone that does not simultaneously affect levels of other sex steroids. The main objective of this study was to fine map this QTL. Whole genome sequence data from 23 Norwegian Duroc boars were analyzed to detect new polymorphisms within the QTL region. A subset of 161 SNPs was genotyped in 834 Duroc sires and analyzed for association with androstenone in adipose tissue and testosterone, estrone sulphate and 17beta-estradiol in blood plasma. Our results revealed 100 SNPs significantly associated with androstenone levels in fat (P < 0.001) with 94 of the SNPs being in strong linkage disequilibrium in the region 23.03-24.27 Mb. This haplotype block contains at least four positional candidate genes (HSD17B6, SDR9C7, RDH16 and STAT6) involved in androstenone biosynthesis. No significant associations were found between any of the SNPs and levels of testosterone and estrogens, confirming previous findings. The amount of phenotypic variance explained by single SNPs within the haplotype block was as high as 5.4%. As the SNPs in this region significantly affect levels of androstenone without affecting levels of other sex steroids, they are especially interesting as genetic markers for selection against boar taint. PMID- 29034489 TI - Modification of Automatic Alcohol-Approach Tendencies in Alcohol-Dependent Patients with Mild or Major Neurocognitive Disorder. AB - BACKGROUND: To examine the applicability of an alcohol-avoidance training procedure in patients with alcohol dependence and alcohol-induced neurocognitive disorders (NDs), we trained 2 groups that differed in the degree of cognitive impairment: One group fulfilled the DSM-5 criteria for alcohol-induced mild ND, and 1 group was diagnosed with Korsakoff's syndrome (KS) (alcohol-induced major ND, confabulatory/amnesic subtype; DSM-5). The intervention is assumed to match the preserved cognitive capacity for implicit learning in both groups. METHODS: Fifty-one inpatients with a mild ND and 54 inpatients with KS were trained. Six training sessions (including pre- and posttests) of a computerized implicit alcohol approach-avoidance task were applied. Neurocognitive variables were available from the standard assessment procedure of the clinic. RESULTS: Training of alcohol-avoidance tendencies is feasible in a population with alcohol-related NDs. The alcohol-approach bias decreased for both groups in each session. Better learning results over time were obtained in participants with a larger baseline alcohol-approach tendency. Learning effects were positively related to age and implicit (nondeclarative) memory functioning. No relation between training effects and executive or explicit memory functions was found. CONCLUSIONS: Training of an alcohol-avoidance tendency can be successfully applied in patients with alcohol dependence including those with alcohol-induced NDs. PMID- 29034490 TI - Hepatic Complications of Umbilical Venous Catheters in the Neonatal Period: The Ultrasound Spectrum. AB - OBJECTIVES: Umbilical venous catheterization is commonly used in the neonatal period; however, it has some complications. In this study, we evaluated neonates who underwent umbilical venous catheterization and developed hepatic complications. Furthermore, we aimed to define all of the possible lesions and to clarify the imaging findings of umbilical venous catheter-induced hepatic injury. METHODS: Two hundred forty-four neonates who underwent umbilical venous catheterization between March 2013 and September 2015 in a single tertiary care referral center were included in this study. To determine whether they had any hepatic complications, all patients underwent abdominal grayscale and Doppler ultrasound examinations, and their clinical data were recorded. RESULTS: The frequency of liver-related complications from umbilical venous catheterization was 33.6% (82 of 244). Air in the portal venous system was the most frequent complication (20.1% [49 of 244]). Left portal venous thrombosis was noted in 6.1% (15 of 244). Parenchymal lesions in the liver related to umbilical venous catheterization were seen in 7.4% of patients (18 of 244) as follows: single nodular echogenic lesions (4.1% [10 of 244]), branching small nodular echogenic lesions (2.1% [5 of 244]), and large irregular heterogeneous lesions with laceration and perihepatic fluid (1.2% [3 of 244]). There was no statistical significance for any type of complication according to the gestational age (P > .05). CONCLUSIONS: Hepatic complications due to umbilical venous catheters are not uncommon in the neonatal period. Ultrasound is the best imaging modality for confirming the diagnosis and for follow-up. PMID- 29034491 TI - Oral tofacitinib: a promising treatment in atopic dermatitis, alopecia areata and vitiligo. PMID- 29034492 TI - Transcriptome analyses reveal genes and pathways associated with fatty acid composition traits in pigs. AB - Fatty acid composition is associated with meat quality in pigs as well as with obesity- and diabetes-related traits in humans. Liver and muscle are important tissues for fatty acid metabolism. In this study, we evaluated correlations between liver and muscle transcriptomes and fatty acid composition traits in muscle and abdominal fat tissues in 335 F2 pigs from a White Duroc * Erhualian F2 pig resource population. Transcripts significantly correlated with fatty acid composition traits were enriched for genes involved in the categories of triglyceride catabolic process, mitochondrial function, hematological and immune system, and disease such as Type II diabetes. Gene co-expression network analysis further identified liver network modules relevant to fatty acid unsaturation index that were enriched in platelet activation and the type I interferon signaling pathway and highlighted the connections between variations in fatty acid composition and genes involved in hematological and immune system. Integrative analysis of the expression QTL identified ELOVL6 and SCD as plausible candidate genes underlying the loci for muscle C18:1n-9/C16:1n-7 values on chromosome 8 and the loci for muscle C18:1n-9/C18:0 contents on chromosome 14 respectively. PMID- 29034493 TI - Incidence and risk factors of surgical site infection and septic arthritis after elective arthroscopy in horses. AB - OBJECTIVE: To determine the incidence of infection and associated risk factors, after elective arthroscopy. STUDY DESIGN: Retrospective case study. ANIMALS: Horses (n=1079) undergoing elective arthroscopy. METHODS: Medical records of all horses that underwent elective arthroscopy between 2006 and 2013 were reviewed. Age, gender, breed, surgeon, number of joints operated, total anesthetic time, perioperative antimicrobial administration, and the presence and size of osteochondral fragments/subchondral lesions were recorded. For each operated joint, the development of postoperative infection (surgical site infection [SSI] and/or septic arthritis) and long-term outcome (>6 months) were recorded. Multivariate logistic regression was used to test for association between the independent variables and the dependent outcomes. RESULTS: A total of 1741 joints in 1079 horses underwent arthroscopy. SSI without septic arthritis occurred in 1 fetlock joint (0.14%), 1 tibiotarsal joint (0.19%), and 6 femoropatellar joints (1.67%). Thirteen joints (0.75%) were diagnosed with septic arthritis, including 1 fetlock joint (0.14%), 4 tibiotarsal joints (0.74%), and 8 femoropatellar joints (2.23%). The probability of postoperative SSI was higher when large lesions (>40 mm long) were treated, compared to medium (20-40 mm, P = .005) and small (<20 mm, P < .001) lesions. SSI was a significant risk factor for the development of septic arthritis (P < .001). Although age did not affect the incidence of SSI, increasing age was associated with a lower rate of septic arthritis rate (P = .028). CONCLUSION: Septic arthritis after elective arthroscopy was more likely in the presence of SSI and younger age. Horses with large lesions were at risk for SSI, which translated into a higher incidence of postoperative septic arthritis after femoropatellar arthroscopy. PMID- 29034494 TI - A mechanistic nonlinear model for censored and mismeasured covariates in longitudinal models, with application in AIDS studies. AB - When modeling longitudinal data, the true values of time-varying covariates may be unknown because of detection-limit censoring or measurement error. A common approach in the literature is to empirically model the covariate process based on observed data and then predict the censored values or mismeasured values based on this empirical model. Such an empirical model can be misleading, especially for censored values since the (unobserved) censored values may behave very differently than observed values due to the underlying data-generation mechanisms or disease status. In this paper, we propose a mechanistic nonlinear covariate model based on the underlying data-generation mechanisms to address censored values and mismeasured values. Such a mechanistic model is based on solid scientific or biological arguments, so the predicted censored or mismeasured values are more reasonable. We use a Monte Carlo EM algorithm for likelihood inference and apply the methods to an AIDS dataset, where viral load is censored by a lower detection limit. Simulation results confirm that the proposed models and methods offer substantial advantages over existing empirical covariate models for censored and mismeasured covariates. PMID- 29034495 TI - Melanoma arising from a plaque-type blue naevus with subcutaneous cellular nodules of the scalp. AB - Plaque-type blue naevus (PTBN) is a very rare variant of blue naevus (BN). The potential malignancy of subcutaneous cellular nodules (SCN) in PTBN was discovered in 2012, and there is currently no clear consensus on prognostic factors or management guidelines of such lesions. PTBN on the scalp have not been described in the literature. We report the clinical, histopathological and immunohistological features of a 50-year-old man who presented with a 30-year history of scalp PTBN, with malignant proliferation of nodular elements and fatal outcome 8 years later. This case suggests that long-term monitoring of patients with PTBN is required. Early surgical removal of such lesions should be considered, especially in the presence of any case of enlargement or change. PMID- 29034497 TI - Response to "Hypertrophic Cardiomyopathy in Youth Athletes: Successful Screening With Point-of-Care Ultrasound by Medical Students". PMID- 29034496 TI - Clinical Impact of the Microembolic Signal Burden During Catheter Ablation for Atrial Fibrillation: Just a Lot of Noise? AB - OBJECTIVES: Microembolic signal detection by transcranial Doppler ultrasonography may be considered a surrogate for cerebral events during invasive cardiac procedures. However, the impact of the microembolic signal count during pulmonary vein isolation on the clinical outcome is not well evaluated. We investigated the effect of the microembolic signal count on the occurrence of new silent cerebral embolism measured by diffusion-weighted imaging (DWI)-magnetic resonance imaging (MRI), changes in neuropsychological testing, and the occurrence of clinical events during long-term follow-up after pulmonary vein isolation. METHODS: Pulmonary vein isolation was performed in 41 patients. The total microembolic signal burden (classified into "solid," "gaseous," and "equivocal") and sustained thromboembolic showers of greater than 30 seconds were recorded. Diffusion weighted imaging-MRI and neuropsychological testing were performed before and after pulmonary vein isolation to assess for silent cerebral embolism and neuropsychological sequelae. Long-term follow-up was performed by telephone to assess for stroke/transient ischemic attack. RESULTS: A total of 68,729 microembolic signals (14,893 solid, 11,909 gaseous, and 41,927 equivocal) with an average of 1676 signals per patient and 42 thromboembolic showers were recorded. No correlation between the microembolic signal/thromboembolic shower count and the occurrence of new DWI lesions or neuropsychological capability was found. After a mean follow-up +/- SD of 49 +/- 4 months, 1 patient had an overt transient ischemic event, which was not associated with a high microembolic signal count. CONCLUSIONS: In this multicenter study, we found no impact of the intraprocedural microembolic symbol/thromboembolic shower count on the occurrence of new DWI lesions, neuropsychological capability, or overt neurologic deficits after pulmonary vein isolation. Thus, not only the microembolic signal count but also procedural/individual factors may contribute to commensurable clinical damage, which may challenge this method as a valid biomarker during pulmonary vein isolation. PMID- 29034498 TI - Design, Synthesis, and Screening of Triazolopyrimidine-Pyrazole Hybrids as Potent Apoptotic Inducers. AB - An efficient synthesis of novel 3-(3-aryl-1-phenyl-1H-pyrazol-4-yl)-5,7-dimethyl [1,2,4]triazolo[4,3-a]-pyrimidines was accomplished by the oxidation of pyrimidinylhydrazones by using organoiodine(III) reagent. All new triazolopyrimidine derivatives bearing the pyrazole scaffold were screened to evaluate them as a reproductive toxicant in the testicular germ cells of goat (Capra hircus). This study aimed at assessing the cytological and biochemical changes in testicular germ cells after the exposure to triazolopyrimidines in a dose- and time-dependent manner. Histomorphological analysis, fluorescence assays, apoptosis quantification, and terminal deoxynucleotidyl transferase dUTP mediated nick-end labeling (TUNEL) assays were performed to determine cytological changes, whereas thiobarbituric acid-reactive substance (TBARS) and ferric reducing antioxidant power (FRAP) assays were carried out to measure the oxidative stress in triazolopyrimidines treated germ cells. The parallel use of these methods enabled us to determine the role of triazolopyrimidines in inducing apoptosis as a consequence of cytogenetic damage and oxidative stress generated in testicular germ cells of goat. PMID- 29034499 TI - Early interaction in autism spectrum disorder: Mothers' and children's behaviours during joint engagement. AB - BACKGROUND: More knowledge about the interaction between young children with autism spectrum disorder and their parents is one way to improve intervention. This study aims to investigate the behaviours of mothers and children with autism spectrum disorder during joint engagement, with a focus on pacing or rate (i.e., incidences per minute) of their behaviours when being in this state. METHOD: Video recordings of 10 min of free-play between 58 children (2-4 years) diagnosed with childhood autism and their mothers were used to examine rate of mothers' and children's behaviours (i.e., toy introduction, toy expansion, positive affect, and language) during joint engagement, the association between rate of mothers and children's behaviours, the relation between rate of mothers' behaviours and time in joint engagement, and how child factors might be associated with the latter. RESULTS: Mothers(m) and children(c) showed similar rate of positive affect (Mm = 0.6/Mc = 0.5) and toy expansion (Mm = 0.7/Mc = 0.7) per minute, whereas mothers talked almost three times more than their children (Mm = 10.2/Mc = 3.8). In contrast, mothers introduced fewer toys compared to the children (Mm = 0.7/Mc = 1.2). Rate of mothers' toy introduction, toy expansion, and positive affect was inversely related to time in joint engagement (Regression coefficient = -70.7 to -48.5, p = .006 to .024). Rates of mothers' and children's behaviours were associated (Spearman rank order coefficient = .53 to .29, p < .001 to .03), but neither rate of children's behaviours nor mental age was associated with the observed relation between rate of these maternal behaviours and time in joint engagement. CONCLUSION: Time in joint engagement was related to rate of mothers' behaviours and children's mental age but not to rate of children's behaviours in this study. Thus, intervention teaching parents of young children with autism strategies designed to increase time in joint engagement may be vital. The complex nature of the interaction between mother and child behaviours in promoting joint engagement warrants further elucidation. PMID- 29034500 TI - How Communication Between Nucleosomes Enables Spreading and Epigenetic Memory of Histone Modifications. AB - Nucleosomes "talk" to each other about their modification state to form extended domains of modified histones independently of the underlying DNA sequence. At the same time, DNA elements promote modification of nucleosomes in their vicinity. How do these site-specific and histone-based activities act together to regulate spreading of histone modifications along the genome? How do they enable epigenetic memory to preserve cell identity? Many models for the dynamics of repressive histone modifications emphasize the role of strong positive feedback loops, which reinforce histone modifications by recruiting histone modifiers to preexisting modifications. Recent experiments question that repressive histone modifications are self-sustained independently of their genomic context, thereby indicating that histone-based feedback is relatively weak. In the present review, current models for the dynamics of histone modifications are compared and it is suggested that limitation of histone-based feedback is key to intrinsic confinement of spreading and coexistence of short- and long-term memory at different genomic loci. See also the video abstract here: https://youtu.be/3bxr_xDEZfQ. PMID- 29034501 TI - Influence of dental materials on cells of the equine periodontium. AB - BACKGROUND: Therapy for equine periodontal disease can include filling of the periodontal pockets and widened interproximal spaces. Recommended dental materials are generally adopted from human dentistry. OBJECTIVES: To evaluate the biocompatibility of dental materials for equine periodontal fillings in vitro. STUDY DESIGN: In vitro experiments. METHODS: Four different dental materials (PeriCare(r) , Provicol(r) , Calxyl(r) and Honigum) were tested on equine periodontal fibroblasts. Possible cytotoxic effects were assessed microscopically and by MTT assay, and the expression of inflammatory marker genes was measured by qRT-PCR. RESULTS: PeriCare(r) and Provicol(r) had no effects on the cells, whereas Honigum and Calxyl(r) were associated with severe cytotoxic effects. MAIN LIMITATIONS: The results of this in vitro study need to be confirmed by clinical studies. CONCLUSIONS: Before adapting dental materials from human dentistry, it is crucial to initially test them in a specific equine model. PMID- 29034502 TI - Ghost reduction in echo-planar imaging by joint reconstruction of images and line to-line delays and phase errors. AB - PURPOSE: To correct line-to-line delays and phase errors in echo-planar imaging (EPI). THEORY AND METHODS: EPI-trajectory auto-corrected image reconstruction (EPI-TrACR) is an iterative maximum-likelihood technique that exploits data redundancy provided by multiple receive coils between nearby lines of k-space to determine and correct line-to-line trajectory delays and phase errors that cause ghosting artifacts. EPI-TrACR was efficiently implemented using a segmented FFT and was applied to in vivo brain data acquired at 7 T across acceleration (1*-4*) and multishot factors (1-4 shots), and in a time series. RESULTS: EPI-TrACR reduced ghosting across all acceleration factors and multishot factors, compared to conventional calibrated reconstructions and the PAGE method. It also achieved consistently lower ghosting in the time series. Averaged over all cases, EPI TrACR reduced root-mean-square ghosted signal outside the brain by 27% compared to calibrated reconstruction, and by 40% compared to PAGE. CONCLUSION: EPI-TrACR automatically corrects line-to-line delays and phase errors in multishot, accelerated, and dynamic EPI. While the method benefits from additional calibration data for initialization, it was not a requirement for most reconstructions. Magn Reson Med 79:3114-3121, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29034503 TI - Detection of a new heterozygous germline ETV6 mutation in a case with hyperdiploid acute lymphoblastic leukemia. AB - ETV6 is a target of recurrent aberrations in sporadic and familial acute lymphoblastic leukemia (ALL). Here, we report on a new pedigree with a germline ETV6 mutation in which the index patient and his father developed high hyperdiploid (HeH) ALL and polycythemia vera at age 13 and 51, respectively. The index patient achieved durable complete remission without transplantation but had persistent moderate thrombocytopenia without bleeding tendency. To determine the prevalence of ETV6 alterations in HeH-ALL, we screened 81 unrelated subjects with HeH-ALL by single nucleotide polymorphism array and high-throughput sequencing for the ETV6 gene. Overall, ETV6 microdeletions and mutations were identified in 9% of cases, all of which were somatic and considered as secondary events. Apart from the index patient, no germline ETV6 aberration was identified. Finally, we reviewed the literature for ETV6 germline aberrations and predispositions to ALL. PMID- 29034504 TI - Revising the paradigm for jail diversion for people with mental and substance use disorders: Intercept 0. AB - A conceptual model for community-based strategic planning to address the criminalization of adults with mental and substance use disorders, the Sequential Intercept Model has provided jurisdictions with a framework that overcomes traditional boundaries between the agencies within the criminal justice and behavioral health systems. This article presents a new paradigm, Intercept 0, for expanding the utility of the Sequential Intercept Model at the front end of the criminal justice system. Intercept 0 encompasses the early intervention points for people with mental and substance use disorders before they are placed under arrest by law enforcement. The addition of Intercept 0 creates a conceptual space that enables stakeholders from the mental health, substance use, and criminal justice systems to consider the full spectrum of real-world interactions experienced by people with mental and substance use disorders with regard to their trajectories, or lack thereof, through the criminal justice system. PMID- 29034505 TI - In vivo characterization of the downfield part of 1 H MR spectra of human brain at 9.4 T: Magnetization exchange with water and relation to conventionally determined metabolite content. AB - PURPOSE: To perform exchange-rate measurements on the in vivo human brain downfield spectrum (5-10 ppm) at 9.4 T and to compare the variation in concentrations of the downfield resonances and of known upfield metabolites to determine potential peak labels. METHODS: Non-water-suppressed metabolite cycling was used in combination with an inversion transfer technique in two brain locations in healthy volunteers to measure the exchange rates and T1 values of exchanging peaks. Spectra were fitted with a heuristic model of a series of 13 or 14 Voigt lines, and a Bloch-McConnell model was used to fit the exchange rate curves. Concentrations from non-water-inverted spectra upfield and downfield were compared. RESULTS: Mean T1 values ranged from 0.40 to 0.77 s, and exchange rates from 0.74 to 13.8 s-1 . There were no significant correlations between downfield and upfield concentrations, except for N-acetylaspartate, with a correlation coefficient of 0.63 and P < 0.01. CONCLUSIONS: Using ultrahigh field allowed improved separation of peaks in the 8.2 to 8.5 ppm amide proton region, and the exchange rates of multiple downfield resonances including the 5.8-ppm peak, previously tentatively assigned to urea, were measured in vivo in human brain. Downfield peaks consisted of overlapping components, and largely missing correlations between upfield and downfield resonances-although not conclusive indicate limited contributions from metabolites present upfield to the downfield spectrum. Magn Reson Med 79:2863-2873, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29034506 TI - Microglial-induced Muller cell gliosis is attenuated by progesterone in a mouse model of retinitis pigmentosa. AB - Norgestrel, a progesterone analogue, has demonstrated neuroprotective effects in a mouse model of retinitis pigmentosa. Neuroprotection is achieved in part through Norgestrels anti-inflammatory properties, alleviating detrimental microglial activity. Gliosis is a feature of many neurodegenerative diseases of the retina, including retinitis pigmentosa. Muller glia, a type of macroglia found in the retina, are major contributors of gliosis, characterized by the upregulation of glial fibrillary acidic protein (GFAP). Microglia-Muller glia crosstalk has been implicated in the initiation of gliosis. In the rd10 retina, increased microglial activity and gliotic events are observed prior to the onset of photoreceptor loss. We hypothesized that Norgestrels dampening effects on harmful microglial activity would consequently impact on gliosis. In the current study, we explore the role of microglia-Muller glia crosstalk in degeneration and Norgestrel-mediated neuroprotection in the rd10 retina. Norgestrels neuroprotective effects in the rd10 retina coincide with significant decreases in both microglial activity and Muller cell gliosis. Using a Muller glial cell line, rMC-1, and isolated microglia, we show that rd10 microglia stimulate GFAP production in rMC-1 cells. Norgestrel attenuates gliosis through direct actions on both microglia and Muller glia. Norgestrel reduces the release of harmful stimuli from microglia, such as interferon-gamma, which might otherwise signal to Muller glia and stimulate gliosis. We propose that Norgestrel also targets Muller cell gliosis directly, by limiting the availability of pSTAT3, a known transcription factor for GFAP. These findings highlight an important aspect to Norgestrels neuroprotective effects in the diseased retina, in combating Muller cell gliosis. PMID- 29034507 TI - Screening for Sturge-Weber syndrome: A state-of-the-art review. AB - Infants with a high-risk distribution of port-wine stains are commonly screened for Sturge-Weber syndrome using brain magnetic resonance imaging. There is no consensus about which port-wine stain phenotypes to screen, optimal timing, screening sensitivity, or whether presymptomatic diagnosis improves neurodevelopmental outcomes. This state-of-the-art review examines the evidence in favor of screening for Sturge-Weber syndrome, based on its effect on neurodevelopmental outcomes, against the risks and limitations of screening magnetic resonance imaging and electroencephalography. A literature search of PubMed/MEDLINE was conducted between January 2005 and May 2017 using key search terms. Relevant articles published in English were reviewed; 34 articles meeting the search criteria were analyzed according to the following outcome measures: neurodevelopmental outcome benefit of screening, diagnostic yield, financial costs, procedural risks, and limitations of screening magnetic resonance imaging and electroencephalography. There is no evidence that a presymptomatic Sturge Weber syndrome diagnosis with magnetic resonance imaging results in better neurodevelopmental outcomes. The utility of electroencephalographic screening is also unestablished. In Sturge-Weber syndrome, neurodevelopmental outcomes depend on prompt recognition of neurologic red flags and early seizure control. Small numbers and a lack of prospective randomized controlled trials limit these findings. For infants with port-wine stain involving skin derived from the frontonasal placode (forehead and hemifacial phenotypes), we recommend early referral to a pediatric neurologist for parental education, counselling, and monitoring for neurologic red flags and seizures and consideration of electroencephalography regardless of whether magnetic resonance imaging is performed or its findings. PMID- 29034510 TI - Youth Program Adult Leader's Directive Assistance and Autonomy Support and Development of Adolescents' Agency Capacity. AB - Developing a capacity for exercising agency is an important developmental task of adolescence. Many organized youth programs provide adolescents opportunities to build their capacity to exercise agency. The researchers tested hypotheses that adult youth program leader's directive assistance and autonomy support would promote adolescents' capacity for agency. They surveyed 441 high school adolescents and 11 adult advisors from 10 Future Farmers of America chapters twice over 2 years. Adolescents self-reported on their capacity for agency and advisors reported on each adolescent's capacity. Directive assistance and autonomy support correlated with the capacity for agency within both time points. Only autonomy support predicted adolescents' capacity for agency over time. Implications of leader's support for adolescents' capacity for exercising agency are discussed. PMID- 29034508 TI - Ulk4 deficiency leads to hypomyelination in mice. AB - Brain nerve fibers are insulated by myelin which is produced by oligodendrocytes. Defects in myelination are increasingly recognized as a common pathology underlying neuropsychiatric and neurodevelopmental disorders, which are associated with deletions of the Unc-51-like kinase 4 (ULK4) gene. Key transcription factors have been identified for oligodendrogenesis, but little is known about their associated regulators. Here we report that Ulk4 acts as a key regulator of myelination. Myelination is reduced by half in the Ulk4tm1a/tm1a hypomorph brain, whereas expression of axonal marker genes Tubb3, Nefh, Nefl and Nefm remains unaltered. Transcriptome analyses reveal that 8 (Gfap, Mbp, Mobp, Plp1, Slc1a2, Ttr, Cnp, Scd2) of the 10 most significantly altered genes in the Ulk4tm1a/tm1a brain are myelination-related. Ulk4 is co-expressed in Olig2+ (pan oligodendrocyte marker) and CC1+ (mature myelinated oligodendrocyte marker) cells during postnatal development. Major oligodendrogeneic transcription factors, including Olig2, Olig1, Myrf, Sox10, Sox8, Sox6, Sox17, Nkx2-2, Nkx6-2 and Carhsp1, are significantly downregulated in the mutants. mRNA transcripts enriched in oligodendrocyte progenitor cells (OPCs), the newly formed oligodendrocytes (NFOs) and myelinating oligodendrocytes (MOs), are significantly attenuated. Expression of stage-specific oligodendrocyte factors including Cspg4, Sox17, Nfasc, Enpp6, Sirt2, Cnp, Plp1, Mbp, Ugt8, Mag and Mog are markedly decreased. Indirect effects of axon caliber and neuroinflammation may also contribute to the hypomyelination, as Ulk4 mutants display smaller axons and increased neuroinflammation. This is the first evidence demonstrating that ULK4 is a crucial regulator of myelination, and ULK4 may therefore become a novel therapeutic target for hypomyelination diseases. PMID- 29034509 TI - 3D diffusion-weighted 129 Xe MRI for whole lung morphometry. AB - PURPOSE: To obtain whole lung morphometry measurements from 129 Xe in a single breath-hold with 3D multiple b-value 129 Xe diffusion-weighted MRI (DW-MRI) with an empirically optimized diffusion time and compressed sensing for scan acceleration. METHODS: Prospective three-fold undersampled 3D multiple b-value hyperpolarized 129 Xe DW-MRI datasets were acquired, and the diffusion time (Delta) was iterated so as to provide diffusive length scale (LmD ) estimates from the stretched exponential model (SEM) that are comparable to those from 3 He. The empirically optimized 129 Xe diffusion time was then implemented with a four-fold undersampling scheme and was prospectively benchmarked against 3 He measurements in a cohort of five healthy volunteers, six ex-smokers, and two chronic obstructive pulmonary disease patients using both SEM-derived LmD and cylinder model (CM)-derived mean chord length (Lm). RESULTS: Good agreement between the mean 129 Xe and 3 He LmD (mean difference, 2.2%) and Lm (mean difference, 1.1%) values was obtained in all subjects at an empirically optimized 129 Xe Delta = 8.5 ms. CONCLUSION: Compressed sensing has facilitated single breath 3D multiple b-value 129 Xe DW-MRI acquisitions, and results at 129 Xe Delta = 8.5 ms indicate that 129 Xe provides a viable alternative to 3 He for whole lung morphometry mapping with either the SEM or CM. Magn Reson Med 79:2986 2995, 2018. (c) 2017 The Authors Magnetic Resonance in Medicine published by Wiley Periodicals, Inc. on behalf of International Society for Magnetic Resonance in Medicine. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. PMID- 29034511 TI - Computationally Efficient Combination of Multi-channel Phase Data From Multi-echo Acquisitions (ASPIRE). AB - PURPOSE: To develop a simple method for combining multi-echo phase information from a number of coils in an array that requires no volume coil or additional scans and yields signal-to-noise ratio-optimal images that reflect only DeltaB0 related phase. THEORY AND METHODS: Two SNR optimal coil combination methods were developed which retrieve the DeltaB0-related phase by determining the coil dependent phase offsets. The first variant, MCPC-3D-S, requires the unwrapping of one phase image; the second variant, ASPIRE, allows unwrapping to be avoided if two echoes j and k satisfy the echo time relation m?TEk=(m+1)?TEj, where m is an integer, making this a particularly fast and robust approach. Both developed methods constitute improvements over a prior method, MCPC-3D, in terms of robustness and computational expense. RESULTS: In the brain at 7 T, phase matching and contrast-to-noise ratio were higher with MCPC-3D-S and ASPIRE than with phase difference reconstruction, and similar to the reference coil-dependent Roemer combination. Unlike the Roemer and virtual reference coil methods, the proposed approaches also eliminated all non- DeltaB0-related phase. CONCLUSION: MCPC-3D-S is an improvement over prior multi-echo methods, which is useful if the ASPIRE echo time condition cannot be fulfilled. ASPIRE is a particularly fast and robust approach that runs on the scanner's reconstructor in a small fraction of the acquisition time. Magn Reson Med 79:2996-3006, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29034512 TI - Superficial temporal artery perforator flap: Anatomic study of number and reliability of distal branches of the superficial temporal artery and clinical applications in three cases. AB - BACKGROUND: Limited information is available about the anatomical feasibility and clinical applications of flaps based on distal divisions of the superficial temporal artery (STA). The aim of this study was to investigate the anatomy of the STA, focusing on the number and reliability of distal branches and to show representative cases for the use of such flaps for zygomatic, parieto-frontal and occipital reconstructions. METHODS: Fifty volunteers were examined bilaterally by Doppler to investigate the presence and variability of the distal divisions of STA branches. Dissection was performed on 14 temporal regions of 7 fresh cadavers. Three cases of reconstruction following skin cancer in the zygomatic (7 * 5 cm defect), parieto-frontal (4 * 4 cm defect) and occipital areas (4 * 2 cm defect) are presented. All the flaps were pedicled and based on a single vessel. RESULTS: In all the 50 volunteers, the parietal branch split into 2 +/- 0 branches (anterior and posterior), bilaterally, while an average of 2.84 +/- 0.46 and 2.82 +/- 0.48 branches originated from the frontal vessel on the right and left side, respectively. 2 +/- 0 parietal and 3 +/- 0 frontal (superior, central, and inferior) cutaneous perforator branches were identified in all cadaveric specimens. Flaps (4 * 10 cm, 5 * 7 cm, and 2 * 5 cm, respectively, width * length) healed uneventfully providing stable coverage. CONCLUSIONS: STA distal perforator branches proved to be anatomically constant in both the cadaveric and clinical settings. Although a larger series of cases is needed, island flaps based on such vessels may represent a versatile surgical option, allowing a wide range of reconstructions in the different facial subunits. PMID- 29034515 TI - Reversible Oxidative Se-Se Coupling of Phosphine Selenides by Ph3 Sb(OTf)2. AB - Salts of diphosphoniumdiselenide dications ([R3 PSeSePR3 ][OTf]2 ) have been isolated from reactions of trialkylphosphine selenides with triphenylantimony bistriflate. The redox process is speculated to proceed via a cationic coordination complex [Ph3 SbL2 ][OTf]2 (L=Me3 PSe, iPr3 PSe), which is also formed in the reaction of [R3 PSeSePR3 ][OTf]2 with Ph3 Sb. The observations indicate that the reductive elimination of [R3 PSeSePR3 ]2+ from [Ph3 Sb(SePR3 )2 ]2+ is reversible through the oxidative addition of [R3 PSeSePR3 ]2+ to Ph3 Sb. PMID- 29034514 TI - Measurement of Murine Single-Kidney Glomerular Filtration Rate Using Dynamic Contrast-Enhanced MRI. AB - PURPOSE: To develop and validate a method for measuring murine single-kidney glomerular filtration rate (GFR) using dynamic contrast-enhanced MRI (DCE-MRI). METHODS: This prospective study was approved by the Institutional Animal Care and Use Committee. A fast longitudinal relaxation time (T1 ) measurement method was implemented to capture gadolinium dynamics (1 s/scan), and a modified two compartment model was developed to quantify GFR as well as renal perfusion using 16.4T MRI in mice 2 weeks after unilateral renal artery stenosis (RAS, n = 6) or sham (n = 8) surgeries. This approach was validated by comparing model-derived GFR and perfusion to those obtained by fluorescein isothiocyanante (FITC)-inulin clearance and arterial spin labeling (ASL), respectively, using the Pearson's and Spearman's rank correlations and Bland-Altman analysis. RESULTS: The compartmental model provided a good fitting to measured gadolinium dynamics in both normal and RAS kidneys. The proposed DCE-MRI method offered assessment of single-kidney GFR and perfusion, comparable to the FITC-inulin clearance (Pearson's correlation coefficient r = 0.95 and Spearman's correlation coefficient rho = 0.94, P < 0.0001, and mean difference -7.0 +/- 11.0 MUL/min) and ASL (r = 0.92 and rho = 0.84, P < 0.0001, and mean difference 4.4 +/- 66.1 mL/100 g/min) methods. CONCLUSION: The proposed DCE-MRI method may be useful for reliable noninvasive measurements of single-kidney GFR and perfusion in mice. Magn Reson Med 79:2935-2943, 2018. (c) 2017 International Society for Magnetic Resonance in Medicine. PMID- 29034516 TI - Identifying gene-gene interactions using penalized tensor regression. AB - Gene-gene (G*G) interactions have been shown to be critical for the fundamental mechanisms and development of complex diseases beyond main genetic effects. The commonly adopted marginal analysis is limited by considering only a small number of G factors at a time. With the "main effects, interactions" hierarchical constraint, many of the existing joint analysis methods suffer from prohibitively high computational cost. In this study, we propose a new method for identifying important G*G interactions under joint modeling. The proposed method adopts tensor regression to accommodate high data dimensionality and the penalization technique for selection. It naturally accommodates the strong hierarchical structure without imposing additional constraints, making optimization much simpler and faster than in the existing studies. It outperforms multiple alternatives in simulation. The analysis of The Cancer Genome Atlas (TCGA) data on lung cancer and melanoma demonstrates that it can identify markers with important implications and better prediction performance. PMID- 29034517 TI - Medication use by adolescents and adults with fragile X syndrome. AB - BACKGROUND: The behavioural challenges and medical conditions associated with fragile X syndrome (FXS) can lead to increased need for medications. METHOD: This longitudinal study examined the use of prescription medications for psychotropic and non-psychotropic purposes by adolescents and adults with FXS drawn from a North American community sample (N = 105). Odds and probabilities of continuing or discontinuing medication were calculated. Predictors of medication use were calculated. RESULTS: More than two-thirds took psychotropic medication, and about one-quarter took non-psychotropic medication. Over a 3-year period, those who initially took prescription medications were considerably more likely to remain on medications than to stop. Individuals with more autism symptoms, more behavioural problems, a mental health diagnosis, and greater family income were significantly more likely to use psychotropic medication 3 years later. Individuals who had more health problems, a mental health diagnosis, and were female were more likely to use non-psychotropic medication over this time period. CONCLUSIONS: Findings highlight the elevated and ongoing use of medication by individuals with FXS. Implications for social and behavioural research on FXS are discussed. PMID- 29034518 TI - Analysis of treatment goal alignment between Japanese psoriasis patients and their paired treating physicians. AB - BACKGROUND: Appropriate goal-oriented treatment strategies are important for optimal treatment outcomes and may prevent under-treatment. As treatment goals vary by patient, a study to examine treatment goals is more meaningful when patients and their physicians are paired. There has not been any study that examines alignment between paired psoriasis patients and physicians in real-world clinical practice using skin clearance as a treatment goal indicator. OBJECTIVES: To evaluate treatment goal alignment between psoriasis patients and their paired physicians, and to quantitatively identify factors associated with goal misalignment. METHODS: The study was a nationwide multicenter cross-sectional observational study. Subjects were physician-reported moderate-to-severe psoriasis patients with a history of systemic treatments, directly paired with their treating physicians. Subjects completed surveys independently. Treatment goals included seven categories, and patient-physician pairs were grouped as 'aligned' or 'misaligned' when the answers were the same or different, respectively. RESULTS: A total of 425 pairs (mean response rate, 94.7%) of responses were collected from 54 sites (64.8% general practitioners or clinics; 35.2% university or large hospitals). Treatment goal misalignment was found in 67.9% of the patient-physician pairs. The misalignment was mainly 'patient predominant' (60.9%) indicating that patients had higher goals ('complete clearance') than physicians. In the multivariate logistic regression analyses, patients' treatment expectation for 'complete clearance' [odds ratio (OR): 1.927; 95% confidential interval (CI): 1.232-3.016] and physician rating of 'level of understanding on treatment options' being low (OR: 1.552, 95% CI; 1.082-2.227) were significant factors for treatment goal misalignment. CONCLUSIONS: The majority of treatment goal misalignment was found between paired psoriasis patients and their treating physicians in Japan. The most important contributing factors to misalignment were patients' treatment expectation for 'complete clearance' and physicians' rating of their patients' 'level of understanding on treatment options' being low. PMID- 29034519 TI - Flexible Aqueous Li-Ion Battery with High Energy and Power Densities. AB - A flexible and wearable aqueous symmetrical lithium-ion battery is developed using a single LiVPO4 F material as both cathode and anode in a "water-in-salt" gel polymer electrolyte. The symmetric lithium-ion chemistry exhibits high energy and power density and long cycle life, due to the formation of a robust solid electrolyte interphase consisting of Li2 CO3 -LiF, which enables fast Li-ion transport. Energy densities of 141 Wh kg-1 , power densities of 20 600 W kg-1 , and output voltage of 2.4 V can be delivered during >4000 cycles, which is far superior to reported aqueous energy storage devices at the same power level. Moreover, the full cell shows unprecedented tolerance to mechanical stress such as bending and cutting, where it not only does not catastrophically fail, as most nonaqueous cells would, but also maintains cell performance and continues to operate in ambient environment, a unique feature apparently derived from the high stability of the "water-in-salt" gel polymer electrolyte. PMID- 29034520 TI - Substitution Reactions at Dipp BIAN Supported Fluoroantimony Cations Yielding Cyanoantimony and Azidoantimony Cations. AB - This work presents new cationic coordination complexes of antimony with the 1,2 bis[(2,6-diisopropylphenyl)imino]acenaphthene (Dipp BIAN) ligand system. The fluoroantimony complexes [SbF(Dipp BIAN)][OTf]2 and [SbF2 (Dipp BIAN)][OTf] have been successfully isolated and characterized. The fluorine substituent in the Lewis acidic complex [SbF(Dipp BIAN)][OTf]2 can be selectively replaced without degradation of the Sb-Dipp BIAN interaction to give the first dicationic azido and cyano derivatives, [Sb(CN)(Dipp BIAN)][OTf]2 and [Sb(N3 )(Dipp BIAN)][OTf]2 , which have been isolated and structurally characterized. PMID- 29034521 TI - Sleep spindle detection using multivariate Gaussian mixture models. AB - In this research study we have developed a clustering-based automatic sleep spindle detection method that was evaluated on two different databases. The databases consisted of 20 all-night polysomnograph recordings. Past detection methods have been based on subject-independent and some subject-dependent parameters, such as fixed or variable thresholds to identify spindles. Using a multivariate Gaussian mixture model clustering technique, our algorithm was developed to use only subject-specific parameters to detect spindles. We have obtained an overall sensitivity range (65.1-74.1%) at a (59.55-119.7%) false positive proportion. PMID- 29034522 TI - Parent-Adolescent Discrepancies in Perceived Parental Sacrifice and Adolescent Developmental Outcomes in Poor Chinese Families. AB - Parents and adolescents perceive family processes differently. This study examined how convergence and divergence of parent-perceived and adolescent perceived parental sacrifice influenced adolescent developmental outcomes in a sample of 275 poor intact Chinese families in Hong Kong. The results of polynomial regression analyses indicated that the interaction of fathers' and adolescents' perceptions of paternal sacrifice negatively predicted adolescent resilience and cognitive competence. Similar findings were identified in maternal sacrifice. Cluster analysis further showed that adolescents exhibited greater resilience and cognitive competence in families with parent-adolescent convergent perceptions of high levels of parental sacrifice than did those in families with parent-adolescent divergent views. Theoretical, methodological, and practical implications of the results are discussed. PMID- 29034523 TI - Immobilised Electrocatalysts: Nafion Particles Doped with Ruthenium(II) Tris(2,2' bipyridyl). AB - Nafion particles doped with ruthenium(II) tris(2,2'-bipyridyl) are synthesized by using a re-precipitation method. Characterization including SEM sizing and quantification of Ru(bpy)32+ in the Nafion particles using UV/Vis spectroscopy was conducted. The synthesized Ru-Nafion particles were investigated electrochemically at both ensemble and single particle levels. Voltammetry of the drop-cast Ru-Nafion particles evidences the successful incorporation of Ru(bpy)32+ into the Nafion particle but only a small fraction of the incorporated Ru(bpy)32+ was detected due at least in part to the formation of the likely agglomerated and irregular "mat" associated with the dropcast technique. In contrast, nano-impact experiments provided a quantitative determination of the amount of Ru(bpy)32+ in single Ru-Nafion particles. Finally, oxidation of solution-phase oxalate mediated by Ru(bpy)32+ within individual Nafion particles was observed, showing the electrocatalytic properties of the Ru-Nafion particles. PMID- 29034524 TI - Carotid chemoreceptor control of muscle sympathetic nerve activity in hypobaric hypoxia. AB - NEW FINDINGS: What is the central question of this study? High-altitude hypoxia increases muscle sympathetic nerve activity (MSNA), but whether intravenous infusion of dopamine, to blunt the responsiveness of the carotid chemoreceptors, reduces MSNA at high altitude is not known. What is the main finding and its importance? Muscle sympathetic nerve activity was elevated after 15-17 days of high-altitude hypoxia (3454 m) compared with values at 'sea level' (432 m). However, intravenous dopamine infusion to blunt the responsiveness of the carotid chemoreceptors did not significantly decrease MSNA either at sea level or at high altitude, suggesting that high-altitude sympathoexcitation arises via a different mechanism. High-altitude hypoxia causes pronounced sympathoexcitation, but the underlying mechanisms remain unclear. We tested the hypothesis that i.v. infusion of dopamine to attenuate carotid chemoreceptor responsiveness would reduce muscle sympathetic nerve activity (MSNA) at high altitude. Nine healthy individuals [mean (SD); 26 (4) years of age] were studied at 'sea level' (SL; Zurich) and at high altitude (ALT; 3454 m; 15-17 days after arrival), both while breathing the ambient air and during an acute incremental hypoxia test (eight 3 min stages; partial pressure of end-tidal O2 90-45 mmHg). Intravenous infusions of dopamine (3 MUg kg-1 min-1 ) and placebo (saline) were administered on both study days, according to a single-blind randomized cross-over design. Sojourn to high altitude decreased the partial pressure of end-tidal O2 (to ~60 mmHg) and increased minute ventilation [VE; mean +/- SEM, SL versus ALT: saline, 8.6 +/- 0.5 versus 11.3 +/- 0.6 l min-1 ; dopamine, 8.2 +/- 0.5 versus 10.6 +/- 0.8 l min 1 ; P < 0.05] and MSNA burst frequency by ~80% [SL versus ALT: saline, 16 +/- 3 versus 28 +/- 4 bursts min-1 ; dopamine, 16 +/- 4 versus 31 +/- 4 bursts min-1 ; P < 0.05) when breathing the ambient air, but were not different with dopamine. Increases in MSNA burst frequency and VE during the acute incremental hypoxia test were greater at ALT than SL (P < 0.05). Dopamine did not affect the magnitude of the MSNA burst frequency response to acute incremental hypoxia at either SL or ALT. However, VE was lower with dopamine than saline administration throughout the acute incremental hypoxia test at ALT. These data indicate that i.v. infusion of low-dose dopamine to blunt the responsiveness of the carotid chemoreceptors does not significantly decrease MSNA at high altitude. PMID- 29034526 TI - Brugada phenocopy caused by a compressive mediastinal tumor. AB - Recently, it has been shown that even experts in electrocardiography cannot differentiate the electrocardiographic pattern of genuine Brugada syndrome (BrS) from Brugada phenocopy (BrP). For this reason, this differentiation depends on the presence of established criteria both for BrS and BrP. In this manuscript, we present a patient with type 1 Brugada electrocardiographic pattern caused by expansive anterior mediastinal non-Hodgkin's lymphoma (NHL) with mechanical compression on the right ventricular outflow tract. The electrocardiographic pattern disappeared rapidly after antineoplastic measures. PMID- 29034525 TI - Reliability and validity of severity dimensions of psychopathology assessed using the Structured Clinical Interview for DSM-5 (SCID). AB - This study examined whether the Structured Clinical Interview for DSM (SCID), a widely used semistructured interview designed to assess psychopathology categorically, can be adapted to identify reliable and valid severity dimensions of psychopathology. The present study also examined whether these severity dimensions have better psychometric properties (internal consistency, test-retest reliability, and concurrent and predictive validity) than categorical diagnoses. Participants (N = 234) were recruited from the community and clinics. Retest reliability and prospective predictive validity (symptoms and functioning 1 year later) were examined in subsamples of participants. Dimensional severity scales were created from an adapted version of the SCID for both current and lifetime major depression, alcohol, substance, post-traumatic stress disorder, panic, agoraphobia, social anxiety, specific phobia, obsessive-compulsive disorder, and generalized anxiety disorder. The SCID's severity scales demonstrated substantial internal consistency (all Cronbach's alphas >.80), test-retest reliability, and concurrent and predictive validity. Symptom severity scales demonstrated significant incremental validity over and above categorical diagnoses for both current and prospective outcomes. The psychometric properties of SCID-identified symptom scales were far superior to the psychometrics of categorical diagnoses for both current and lifetime psychopathology. These results highlight the feasibility and utility of the SCID to assess reliable and valid symptom severity dimensions of both current and lifetime psychopathology. PMID- 29034528 TI - Patients with a new variant of endemic pemphigus foliaceus have autoantibodies against arrector pili muscle, colocalizing with MYZAP, p0071, desmoplakins 1 and 2 and ARVCF. AB - BACKGROUND: We identified a new variant of endemic pemphigus foliaceus in El Bagre, Colombia, South America, which we term El Bagre-EPF, and observed reactivity to arrector pili muscle (APM), thus we tested for autoimmunity to APM. METHODS: We took skin biopsies from 30 patients with El Bagre-EPF and 30 healthy controls (HCs) matched by age, sex and occupation, who were all from the endemic area, and tested these using direct immunofluorescence (DIF), confocal microscopy, immunohistochemistry and immunoblotting (IB). RESULTS: Of the 30 patients with El Bagre-EPF, 27 had autoantibodies to APM that colocalized with commercial antibodies to myocardium-enriched zonula occludens-1-associated protein (MYZAP), desmoplakin (DP)1 and DP2, plakophilin 4, and Armadillo repeat gene deleted in velo-cardio-facial syndrome (ARVCF) (P < 0.001, Fisher exact test). The positive staining also colocalized with Junctional Adhesion Molecule 1 (JAM-A), a control antibody for gap cell junctions. No HC samples were positive. In 27 of the 30 patients, serum that was APM-positive also displayed IB colocalization of their autoantibody molecular weights with the Progen antibodies (P < 0.001, Fisher exact test). CONCLUSIONS: Patients affected by El Bagre-EPF have autoantibodies to APM, colocalizing with the antibodies MYZAP, ARVCF, p0071, DP1 and DP2, suggesting that these molecules are El Bagre-EPF antigens. Further, all of these antigens represent components of cell junctions, indicating that the immune response is directed, at least partially, against cell junctions. The immune response in patients affected by El Bagre-EPF is polyclonal, and it includes B and T lymphocytes, mast cells, IgG, IgA, IgM, IgD, IgE, fibrinogen, albumin, complement/C1q, C3c and C4. PMID- 29034527 TI - Age of onset or age at assessment-that is the question: Estimating newly incident alcohol drinking and rapid transition to heavy drinking in the United States, 2002-2014. AB - Age-specific incidence estimates are important and useful facts in psychiatric epidemiology, but incidence estimation can be challenging. Methods artifacts are possible. In the United States, where the minimum legal drinking age is 21 years, recent cross-sectional field research on 12- to 25-year-olds applied conventional "age-at-assessment" approaches (AAA) for incidence estimation based on 12-month recall. Estimates disclosed unexpected nonlinear patterns in age-specific incidence estimates for both drinking onset and for transitioning from first drink to heavy drinking. Here, our aim is to draw attention to an "age of onset" (AOO) alternative to AAA approaches and to verify whether the AOO approach also discloses nonlinearity. Yearly data are from U.S. nationally representative samples drawn and assessed for National Surveys on Drug Use and Health, 2002 2014, with standardized audio computer-assisted self-interview assessments for drinking outcomes. Both AAA and AOO approaches show nonlinearities, with an unexpected dip in drinking incidence rates after age 18 and before the age 21 minimum legal drinking age. The AOO and the AAA approaches disclosed similar age specific patterns. We discuss advantages of the AOO approach when nonlinear incidence patterns can be anticipated, but we conclude that the AAA approach has not created an artifactual nonlinear pattern. PMID- 29034529 TI - Reliability of muscle blood flow and oxygen consumption response from exercise using near-infrared spectroscopy. AB - NEW FINDINGS: What is the central question of this study? Continuous-wave near infrared spectroscopy, coupled with venous and arterial occlusions, offers an economical, non-invasive alternative to measuring skeletal muscle blood flow and oxygen consumption, but its reliability during exercise has not been established. What is the main finding and its importance? Continuous-wave near-infrared spectroscopy devices can reliably assess local skeletal muscle blood flow and oxygen consumption from the vastus lateralis in healthy, physically active adults. The patterns of response exhibited during exercise of varying intensity agree with other published results using similar methodologies, meriting potential applications in clinical diagnosis and therapeutic assessment. Near infrared spectroscopy (NIRS), coupled with rapid venous and arterial occlusions, can be used for the non-invasive estimation of resting local skeletal muscle blood flow (mBF) and oxygen consumption (mVO2), respectively. However, the day-to day reliability of mBF and mVO2 responses to stressors such as incremental dynamic exercise has not been established. The aim of this study was to determine the reliability of NIRS-derived mBF and mVO2 responses from incremental dynamic exercise. Measurements of mBF and mVO2 were collected in the vastus lateralis of 12 healthy, physically active adults [seven men and five women; 25 (SD 6) years old] during three non-consecutive visits within 10 days. After 10 min rest, participants performed 3 min of rhythmic isotonic knee extension (one extension every 4 s) at 5, 10, 15, 20, 25 and 30% of maximal voluntary contraction (MVC), before four venous occlusions and then two arterial occlusions. The mBF and mVO2 increased proportionally with intensity [from 0.55 to 7.68 ml min-1 (100 ml)-1 and from 0.05 to 1.86 ml O2 min-1 (100 g)-1 , respectively] up to 25% MVC, where they began to plateau at 30% MVC. Moreover, an mBF/mVO2 muscle oxygen consumption ratio of ~5 was consistent for all exercise stages. The intraclass correlation coefficient for mBF indicated high to very high reliability for 10 30% MVC (0.82-0.9). There was very high reliability for mVO2 across all exercise stages (intraclass correlation coefficient 0.91-0.96). In conclusion, NIRS can reliably assess muscle blood flow and oxygen consumption responses to low- to moderate-intensity exercise, meriting potential applications in clinical diagnosis and therapeutic assessment. PMID- 29034530 TI - Gene expression and morphological changes in the intestinal mucosa associated with increased permeability induced by short-term fasting in chickens. AB - Short-term fasting for 4.5 and 9 hr has been demonstrated to increase intestinal permeability (IP) in chickens. This study aimed to investigate the effects of 0, 4.5, 9 and 19.5 hr fasting on intestinal gene expression and villus-crypt architecture of enterocytes in jejunal and ileal samples. On day 38, Ross-308 male birds were fasted according to their group and then euthanised. Two separate intestinal sections (each 2 cm long, jejunum and ileum) were collected. One section was utilised for villus height and crypt depth measurements. The second section was snap-frozen in liquid nitrogen for quantitative polymerase chain reaction (qPCR) analysis of tight junction proteins (TJP) including claudin-1, claudin-3, occludin, zonula occludens (ZO-1, ZO-2), junctional adhesion molecules (JAM) and E-cadherin. Additionally genes involved in enterocyte protection including glucagon-like peptide (GLP-2), heat-shock protein (HSP-70), intestinal alkaline phosphatase (IAP), mammalian target of rapamycin (mTOR), toll-like receptors (TLR-4), mucin (MUC-2), cluster differentiation (CD-36) and fatty acid binding protein (FABP-6) were also analysed. Normally distributed data were analysed using one-way analysis of variance ANOVA. Other data were analysed by non-parametric one-way ANOVA. Villus height and crypt depth were increased (p < .05) only in the ileum after fasting for 4.5 and 9 hr compared with non-fasting group. mRNA expression of claudin-3 was significantly reduced in the ileum of birds fasted for 9 and 19.5 hr, suggesting a role in IP modulation. However, all other TJP genes examined were not statistically different from control. Nevertheless, ileal FABP-6 of all fasted groups was significantly reduced, which could possibly be due to reduced bile acid production during fasting. PMID- 29034531 TI - Sealer penetration and adaptation in root canals with the butterfly effect. AB - The butterfly effect is a phenomenon seen in some roots and is related to density of dentinal tubules. The aim was to investigate penetration depth and adaptation quality of root canal sealers and ProRoot MTA into bucco-lingual and mesio-distal aspects of roots with and without the effect. One hundred and twenty teeth were decoronated at the cemento-enamel junction. Canals were prepared and assigned to obturation groups: gutta-percha with a sealer (AH Plus, EndoREZ, Kerr Pulp Canal Sealer, MTA Fillapex) or ProRoot MTA alone (each containing 10 butterfly and 10 non-butterfly roots). Root sectioning yielded coronal and middle samples. Confocal laser scanning and scanning electron microscopy were used to assess penetration and adaptation. Teeth with the effect had greater mean penetration bucco-lingually (766 MUm) than mesio-distally (184 MUm, P = 0.003). Coronal sections had greater penetration (430 MUm) compared with middle (247 MUm, P = 0.006). In conclusion, greater penetration in roots with the effect may improve treatment outcomes. PMID- 29034532 TI - Feces nitrogen release induced by different large herbivores in a dry grassland. AB - Large herbivores have pronounced effects on nutrient cycling in grasslands. These organisms are known to alter the quality and quantity of plant production as well as the amounts and quality of plant litter and animal wastes. The generalization that the relative quality of detritus inputs is enhanced by herbivores is well known, but how this process is affected by diet selection processing and feces production of different large herbivores remains largely unstudied. Here, we measured how these differences for cattle and sheep on a dry grassland might influence nitrogen (N) mineralization from feces. We found that cattle of larger body size tended to select the low quality grass Stipa grandis as their major food source. In contrast, the subdominant grass Leymus chinensis, with relatively high N content, was a majority in the diet of smaller sheep, when palatable forbs were insufficient in the field. This diverse diet quality resulted in a C:N ratio of cattle feces that was higher than that of sheep feces. Relatively higher labile C availability in the cattle feces, namely relatively higher cellulose/hemicellulose contents, promoted microbial growth and in turn accelerated cattle feces decomposition. A surprise finding was that the feces from cattle mineralized about twice as much N as feces from sheep, despite the latter having slightly higher N content. From a grassland productivity perspective, increasing the proportion of large body-sized species in grazing herbivore assemblages perhaps is beneficial to forage productivity and nutrient recycling by the rapid degradation of feces. PMID- 29034533 TI - Efficacy, tolerability and safety of cannabis-based medicines for chronic pain management - An overview of systematic reviews. AB - : Medicinal cannabis has already entered mainstream medicine in some countries. This systematic review (SR) aimed at evaluating the efficacy, acceptability and safety of cannabis-based medicines for chronic pain management. Qualitative systematic review of SRs of randomized controlled trials with cannabis-based medicines for chronic pain management. The Cochrane databases of SRs, Database of Abstracts of Reviews of Effects and PubMed were searched for SR published in the period January 2009 to January 2017. Assessment of the methodological quality of SR was performed by the AMSTAR checklist. Out of 748 papers identified, 10 SRs met the inclusion criteria. The methodological quality was high in four and moderate in six SRs. There were inconsistent findings of four SRs on the efficacy of cannabis-based medicines in neuropathic pain and of one SR for painful spasms in multiple sclerosis. There were consistent results that there was insufficient evidence of any cannabis-based medicine for pain management in patients with rheumatic diseases (three SRs) and in cancer pain (two SRs). Cannabis-based medicines undoubtedly enrich the possibilities of drug treatment of chronic pain conditions. It remains the responsibility of the health care community to continue to pursue rigorous study of cannabis-based medicines to provide evidence that meets the standard of 21st century clinical care. SIGNIFICANCE: We provide an overview of systematic reviews on the efficacy, tolerability and safety of cannabis-based medicines for chronic pain management. There are inconsistent findings of the efficacy of cannabinoids in neuropathic pain and painful spasms in multiple sclerosis. There are inconsistent results on tolerability and safety of cannabis-based medicines for any chronic pain. PMID- 29034534 TI - Corrective emotional experience in an integrative affect-focused therapy: Building a preliminary model using task analysis. AB - OBJECTIVE: The present study constructed a preliminary process model of corrective emotional experience (CEE) in an integrative affect-focused therapy. METHOD: Task analysis was used to analyse 6 in-session events taken from 6 Japanese clients who worked with an integrative affect-focused therapist. The 6 events included 3 successful CEEs and 3 partially successful CEEs for comparison. RESULTS: A rational-empirical model of CEE was generated, which consisted of two parallel client change processes, intrapersonal change and interpersonal change, and the therapist interventions corresponding to each process. Therapist experiential interventions and therapist affirmation facilitated both intrapersonal and interpersonal change processes, whereas his relational interventions were associated with the interpersonal change process. The partially successful CEEs were differentiated by the absence of the component of core painful emotions or negative beliefs in intrapersonal change process, which seemed crucial for the interpersonal change process to develop. CONCLUSIONS: CEE is best represented by a preliminary model that depicts two parallel yet interacting change processes. Intrapersonal change process is similar to the sequence of change described by the emotional processing model (Pascual-Leone & Greenberg, ), whereas interpersonal change process is a unique contribution of this study. Interpersonal change process was facilitated when the therapist's active stance and use of immediacy responses to make their relational process explicit allowed a shared exploration. Therapist affirmation bridged intrapersonal change to interpersonal change by promoting an adaptive sense of self in clients and forging a deeper emotional connection between the two. PMID- 29034535 TI - Psychological effects of Helicobacter pylori-associated atrophic gastritis in patients under 50 years: A cross-sectional study. AB - BACKGROUND: While gastrointestinal function is known to be closely related to psychological status, the influence of Helicobacter pylori-associated atrophic gastritis is currently unknown. We aimed to determine whether atrophic gastritis status or H. pylori infection is associated with psychological distress or depressed mood. MATERIALS AND METHODS: We performed a cross-sectional, observational study involving 975 Japanese individuals (503 females; mean age, 44 +/- 8 years) who underwent a health checkup. Psychological distress was defined as a Kessler-6 Scale score >=13 and depressive mood as a Center for Epidemiological Studies Depression Scale score >= 16. The odds ratios with 95% confidence intervals assessing the risk of psychological distress or depressive mood associated with H. pylori infection (H. pylori-specific immunoglobulin G levels >10 U/mL) and atrophic gastritis status (pepsinogen I levels < 70 MUg/L and pepsinogen I/II ratio < 3) were calculated using multiple logistic analysis adjusting for several covariates. RESULTS: Individuals with atrophic gastritis had a significantly higher risk of experiencing psychological distress, with younger females (<50 years) displaying the highest risk for psychological distress and depressive mood regardless of H. pylori infection status. Among females aged <50 years, H. pylori-seropositive participants with atrophic gastritis (HP+AG+) showed the highest risk of psychological distress (OR, 16.4; 95% CI, 3.45-94.9) and depression (OR, 2.86; 95% CI, 1.31-6.05), using HP-AG- status as the reference. CONCLUSIONS: Our findings support the results of previous animal studies regarding the psychological response to gastritis in humans. Further studies are needed to elucidate whether H. pylori eradication provides psychological benefits. PMID- 29034536 TI - Family Functioning and Relationship Quality for Adolescents in Family-based Treatment with Severe Anorexia Nervosa Compared with Non-clinical Adolescents. AB - This longitudinal study explored family functioning and relationship quality for adolescents with severe anorexia nervosa (AN). An important outcome given healthy family functioning supports effective adolescent development. Fifty-four female adolescents and their parents, treated with family-based treatment after inpatient admission, and 49 non-clinical age-matched adolescents and their parents were compared at assessment and 6 months after session 20. At baseline, AN group mothers and fathers reported poorer family function. AN adolescents were notably similar to controls, reporting poorer function in only one domain. There were no changes for adolescents, an improvement for mothers in the AN group, but an increase in perceived impairment for fathers in both groups, with AN fathers more affected. The similarity in adolescent reports and the increase for fathers over time may indicate that normal adolescent family processes occur even in the midst of serious illness. There is a need to provide intervention to ameliorate the impact of treatment on parents. Copyright (c) 2017 John Wiley & Sons, Ltd and Eating Disorders Association. PMID- 29034537 TI - How effective and fair is user fee removal? Evidence from Zambia using a pooled synthetic control. AB - Despite its high political interest, the impact of removing user charges for health care in low-income settings remains a debatable issue. We try to clear up this contentious issue by estimating the short-term effects of a policy change that occurred in 2006 in Zambia, when 54 of 72 districts removed fees. We use a pooled synthetic control method in order to estimate the causal impact of the policy on health care use, the provider chosen, and out-of-pocket medical expenses. We find no evidence that user fee removal increased health care utilisation, even among the poorest group. However, we find that the policy is likely to have led to a substitution away from the private sector for those using care and that it virtually eliminated medical expenditures, thereby providing financial protection to service users. We estimate that the policy was equivalent to a transfer of US$3.2 per health visit for the 50% richest but of only US$1.1 for the 50% poorest. PMID- 29034538 TI - Association of insomnia severity with well-being, quality of life and health care costs: A cross-sectional study in older adults with chronic pain (PainS65+). AB - BACKGROUND: Insomnia is one of the most common complaints in chronic pain. This study aimed to evaluate the association of insomnia with well-being, quality of life and health care costs. METHODS: The sample included 2790 older individuals (median age = 76; interquartile range [IQR] = 70-82) with chronic pain. The participants completed a postal survey assessing basic demographic data, pain intensity and frequency, height, weight, comorbidities, general well-being, quality of life and the insomnia severity index (ISI). Data on health care costs were calculated as costs per year (? prices) and measured in terms of outpatient and inpatient care, pain drugs, total drugs and total health care costs. RESULTS: The overall fraction of clinical insomnia was 24.6% (moderate clinical insomnia: 21.9% [95% CI: 18.8-23.3]; severe clinical insomnia: 2.7% [95% CI: 1.6-3.2]). Persons who reported clinical insomnia were more likely to experience pain more frequently with higher pain intensity compared to those reported no clinically significant insomnia. Mean total health care costs were ? 8469 (95% CI: ?4029 ?14,271) for persons with severe insomnia compared with ? 4345 (95% CI: ?4033 ?4694) for persons with no clinically significant insomnia. An association between severe insomnia, well-being, quality of life, outpatient care, total drugs costs and total health care costs remained after controlling for age, sex, pain intensity, frequency, body mass index and comorbidities using linear regression models. CONCLUSIONS: Our results determine an independent association of insomnia with low health-related quality of life and increased health care costs in older adults with chronic pain. SIGNIFICANCE: The concurrence and the severity of insomnia among older adults with chronic pain were associated with decreased well-being and quality of life, and increased health care costs to society. PMID- 29034539 TI - Recurrent extensive anterior myocardial infarction with left and right bundle branch block. AB - The diagnosis of myocardial infarction with left bundle branch block is difficult. We report a case of 56-year-old man with old extensive anterior myocardial infarction and left bundle branch block (masked each other). The recurrent myocardial infarction indicated right bundle branch block and first degree atrioventricular block, making a clear diagnosis of complicated and interesting ECG. PMID- 29034541 TI - Characteristic component profiling and identification of different Uncaria species based on high-performance liquid chromatography-photodiode array detection tandem ion trap and time of flight mass spectrometry coupled with rDNA ITS sequence. AB - Uncaria is a multi-source herb and its species identification has become a bottleneck in quality control. To study the identification method of different Uncaria species herbs through HPLC-MS coupled with rDNA Internal Transcribed Spacer (rDNA ITS) sequence, both plant morphological traits and molecular identification were used to determine the species of every collected Uncaria herb. The genetic analysis of different Uncaria species was performed using their rDNA ITS sequence as a molecular marker. Meanwhile, the phylogenetic relationships of 22 samples from six Uncaria species were divided and classified clearly. By optimizing the chromatographic conditions, a practical HPLC method to differentiate various varieties of Uncaria herbs was set up based on a set of characteristic components across each species. A high-performance liquid chromatography-photodiode array detector tandem ion trap and time of flight mass spectrometry technique combined with reference substances was utilized to derive 21 characteristic compounds containing six groups of six Uncaria species in China. Thus, this study provides a feasible method to solve the current problem of confusion in Uncaria species, and makes a significant step forward in the appropriate clinical use, in-depth research and further utilization of different Uncaria species. PMID- 29034540 TI - Ursolic acid enhances the therapeutic effects of oxaliplatin in colorectal cancer by inhibition of drug resistance. AB - It has been reported that ursolic acid has anti-tumor activity and it enhances the therapeutic effect of oxaliplatin in colorectal cancer (CRC). However, the underlying mechanisms remain unknown. In the present study, the mechanisms of the enhancement of therapeutic effects through use of ursolic acid were investigated. We treated CRC cell lines HCT8 and SW480 with ursolic acid and oxaliplatin and monitored the effects on cell proliferation, apoptosis, reactive oxygen species (ROS) production and drug resistance gene production. We discovered that treatment with a combination of ursolic acid and oxaliplatin resulted in significant inhibition of cell proliferation, significantly increased apoptosis and ROS production, and significant inhibition of drug resistance gene expression. Our study provided evidence that ursolic acid enhances the therapeutic effects of oxaliplatin in colorectal cancer by ROS-mediated inhibition of drug resistance. PMID- 29034542 TI - Time-Frequency Analysis of Increases in Vaginal Blood Perfusion Elicited by Long Duration Pudendal Neuromodulation in Anesthetized Rats. AB - OBJECTIVES: Female sexual dysfunction (FSD) affects a significant portion of the population. Although treatment options for FSD are limited, neuromodulation for bladder dysfunction has improved sexual function in some women. A few studies have investigated peripheral neuromodulation for eliciting changes in vaginal blood flow, as a proxy for modulating genital sexual arousal, however results are generally transient. Our central hypothesis is that repeated or extended-duration pudendal nerve stimulation can elicit maintained vaginal blood flow increases. MATERIALS AND METHODS: Under ketamine anesthesia, the pudendal nerve of 14 female rats was stimulated at varying frequencies (1-100 Hz) and durations (0.15-60 min). Vaginal blood perfusion was measured with a laser Doppler flowmetry probe. Changes in blood perfusion were determined through raw signal analysis and increases in the energy of neurogenic (0.076-0.200 Hz) and myogenic (0.200-0.740 Hz) frequency bands through wavelet analysis. Additionally, a convolution model was developed for a carry-over stimulation effect. RESULTS: Each experiment had significant increases in vaginal blood perfusion due to pudendal nerve stimulation. In addition, there were large concurrent increases in neurogenic and myogenic frequency-band energy in 11/14 experiments, with an average maximal response at 31.3 min after stimulation initiation. An effective stimulation model with a 30-min carry-over effect had a stronger correlation to blood perfusion than the stimulation period itself. CONCLUSIONS: Repeated or extended-duration pudendal nerve stimulation can elicit maintained increases in vaginal blood perfusion. This work indicates the potential for pudendal neuromodulation as a method for increasing genital arousal as a potential treatment for FSD. PMID- 29034545 TI - A pilot intervention to reduce postpartum weight retention and central adiposity in first-time mothers: results from the mums OnLiNE (Online, Lifestyle, Nutrition & Exercise) study. AB - BACKGROUND: Postpartum weight retention (PPWR) increases the risk for obesity and complications during subsequent pregnancies. Few interventions have been successful in limiting PPWR in mothers. The present study assessed the effectiveness of the mums OnLiNE (Online, Lifestyle, Nutrition & Exercise) intervention with respect to reducing PPWR and improving diet, physical activity and sedentary behaviour. METHODS: A subsample of first-time mothers enrolled in the Extended Melbourne Infant Feeding Activity and Nutrition Trial (InFANT Extend) completed the nonrandomised mums OnLiNE intervention. Women in the intervention (I) group (n = 28) received access to an online calorie tracking program, smartphone app, three telephone counselling calls with a dietitian and written material. Women in two comparison groups (CI and C2) (n = 48; n = 43) were from the control (C1) and intervention (C2) arms of InFANT Extend and received no additional support. Weight and waist circumference were measured objectively. Written surveys assessed diet and physical activity. Sedentary behaviour was self-reported. Linear and logistic regression assessed changes in outcomes between groups from 9 to 18 months postpartum. RESULTS: Mean PPWR decreased in the (I) group (-1.2 kg) and the C2 group (-1.2 kg), although the changes were not significant. Mean waist circumference for all groups exceeded recommendations at baseline but decreased to below recommendations for women in the (I) group (78.3 cm) and significantly for the (I) group (-6.4 cm) compared to C1 (-1.1 cm; P = 0.002) and C2 (-3.3 cm; P = 0.001). Changes in diet, physical activity or sedentary behaviour were not significant. CONCLUSIONS: The online intervention reported in the present study shows promise with respect to reducing waist circumference in postpartum women. Further evidence of strategies that may improve weight and related behaviours in this target group is needed. PMID- 29034544 TI - CYP2U1 activity is altered by missense mutations in hereditary spastic paraplegia 56. AB - Hereditary spastic paraplegia (HSP) is an inherited disorder of the central nervous system mainly characterized by gradual spasticity and weakness of the lower limbs. SPG56 is a rare autosomal recessive early onset complicated form of HSP caused by mutations in CYP2U1. The CYP2U1 enzyme was shown to catalyze the hydroxylation of arachidonic acid. Here, we report two further SPG56 families carrying three novel CYP2U1 missense variants and the development of an in vitro biochemical assay to determine the pathogenicity of missense variants of uncertain clinical significance. We compared spectroscopic, enzymatic, and structural (from a 3D model) characteristics of the over expressed wild-type or mutated CYP2U1 in HEK293T cells. Our findings demonstrated that most of the tested missense variants in CYP2U1 were functionally inactive because of a loss of proper heme binding or destabilization of the protein structure. We also showed that functional data do not necessarily correlate with in silico predictions of variants pathogenicity, using different bioinformatic phenotype prediction tools. Our results therefore highlight the importance to use biological tools, such as the enzymatic test set up in this study, to evaluate the effects of newly identified variants in clinical settings. PMID- 29034543 TI - PD-L1 expression is mainly regulated by interferon gamma associated with JAK-STAT pathway in gastric cancer. AB - Despite multidisciplinary treatment for patients with advanced gastric cancer, their prognosis remains poor. Therefore, the development of novel therapeutic strategies is urgently needed, and immunotherapy utilizing anti-programmed death 1/-programmed death ligand-1 mAb is an attractive approach. However, as there is limited information on how programmed death ligand-1 is upregulated on tumor cells within the tumor microenvironment, we examined the mechanism of programmed death ligand-1 regulation with a particular focus on interferon gamma in an in vitro setting and in clinical samples. Our in vitro findings showed that interferon gamma upregulated programmed death ligand-1 expression on solid tumor cells through the JAK-signal transducer and activator of transcription pathway, and impaired the cytotoxicity of tumor antigen-specific CTL against tumor cells. Following treatment of cells with anti-programmed death ligand-1 mAb after interferon gamma-pre-treatment, the reduced anti-tumor CTL activity by interferon gamma reached a higher level than the non-treatment control targets. In contrast, programmed death ligand-1 expression on tumor cells also significantly correlated with epithelial-mesenchymal transition phenotype in a panel of solid tumor cells. In clinical gastric cancer samples, tumor membrane programmed death ligand-1 expression significantly positively correlated with the presence of CD8-positive T cells in the stroma and interferon gamma expression in the tumor. The results suggest that gastric cancer patients with high CD8-positive T-cell infiltration may be more responsive to anti-programmed death 1/-programmed death ligand-1 mAb therapy. PMID- 29034546 TI - Bradykinin system is involved in endometriosis-related pain through endothelin-1 production. AB - BACKGROUND: Endometriosis is a gynaecological disease exhibiting severe pelvic pain, but the mechanism of pain production remains unknown. Bradykinin (BK) is known as an inflammatory mediator, and shows elevated levels in inflammatory diseases such as rheumatoid arthritis. In the present study, we evaluated whether BK is involved in endometriosis-related pain. METHODS: Endometriotic lesions were used for immunohistochemistry. Primary cultures of endometriotic stromal cells (ESC) were stimulated with IL-1beta and/or BK. Quantitative RT-PCR was used to evaluate the mRNA expressions of BK receptors (BKR) and endothelin-1 in ESC. The concentration of endothelin-1 in cystic fluid of endometrioma or non-endometrioma was measured with ELISA. The conditioned medium of ESC stimulated with IL-1beta and/or BK was injected intraplantarly in mice, and evaluated whether pain-related licking behaviour was elicited. RESULTS: The expressions of BK and BKR in endometriotic lesions were observed by immunohistochemistry. In vitro experiments showed that IL-1beta induced BKR-B1 and B2 on ESC. Activation of these receptors by BK significantly induced endothelin-1 expression in ESC, which was negated completely by HOE-140, a BKR-B2 antagonist. The cystic fluid of endometrioma contained higher amount of endothelin-1 compared to non-endometrioma. Intraplantar injection of the conditioned medium of ESC treated with IL-1beta and BK significantly induced licking behaviour, which was suppressed with BQ-123, an endothelin type-A receptor antagonist. CONCLUSIONS: The present study demonstrated the presence and the function of the BK axis in endometriosis, and established a potential new therapy target for endometriosis-related pain. SIGNIFICANCE: The present study demonstrated (1) the presence and the function of the BK system in endometriosis, (2) activation of BKR induced endothelin-1 in endometriotic lesion and (3) blocking endothelin-1 was effective to decrease pain. PMID- 29034547 TI - Refractory pityriasis rubra pilaris treated with etanercept, adalimumab, or ustekinumab: A retrospective investigation. AB - Pityriasis rubra pilaris (PRP) is a rare, difficult to treat papulosquamous disorder that responds variably to retinoids and immunosuppression. Successful use of biologics for treating PRP has been described in the literature by case reports and a limited number of case series. To provide additional data, we retrospectively analyzed cases of PRP treated with biologics at our institution. We identified seven patients with a clear diagnosis of PRP treated with adalimumab, etanercept, and/or ustekinumab at our institution from January 1, 2014 to April 1, 2017. Six of seven patients had type I, adult acquired PRP, and one had type V atypical juvenile PRP. In response to tumor necrosis factor (TNF) alpha inhibition, two patients had marked responses (>75% improvement in involved body surface area), while three patients failed to show any improvement on a TNF alpha inhibitor. In two cases of PRP refractory to TNF-alpha inhibition, ustekinumab resulted in a partial response (<75% improvement) in one patient and no response in the other. Compared to other published data, our cohort was substantially more resistant to treatment with biologics, a finding which may provide valuable perspective for dermatologists managing refractory PRP in the future. PMID- 29034549 TI - Effect of Pore Size on the Carbon Dioxide Adsorption Behavior of Porous Liquids Based on Hollow Silica. AB - Porous liquids are an expanding class of material that has huge potential in gas separation and gas adsorption. Pore size has a dramatic influence on the gas adsorption of porous liquids. In this article, we chose hollow silica nanoparticles as cores, 3-(trihydroxysilyl)-1-propanesulfonic acid (SIT) as corona, and inexpensive industrial reagent polyether amine (M2070) as canopy to obtain a new type of porous liquids. Hollow silica nanospheres with different pore sizes were chosen to investigate the influence of porosity size on CO2 adsorption capacity of porous liquids. Their chemical structure, morphology, thermal behavior and possible adsorption mechanism are discussed in detail. It was proved that with similar grafting density, porous liquid that has bigger pore size possesses a better CO2 adsorption capacity (2.182 mmol g-1 under 2.5 MPa at 298 K). More than that, this article demonstrates a more facile and low-cost method to obtain porous liquids with good CO2 adsorption capacity, recyclability, and huge variability. PMID- 29034550 TI - Near-Infrared Light-Driven Hydrogen Evolution from Water Using a Polypyridyl Triruthenium Photosensitizer. AB - In order to realize artificial photosynthetic devices for splitting water to H2 and O2 (2 H2 O+hnu->2 H2 +O2 ), it is desirable to use a wider wavelength range of light that extends to a lower energy region of the solar spectrum. Here we report a triruthenium photosensitizer [Ru3 (dmbpy)6 (MU-HAT)]6+ (dmbpy=4,4' dimethyl-2,2'-bipyridine, HAT=1,4,5,8,9,12-hexaazatriphenylene), which absorbs near-infrared light up to 800 nm based on its metal-to-ligand charge transfer (1 MLCT) transition. Importantly, [Ru3 (dmbpy)6 (MU-HAT)]6+ is found to be the first example of a photosensitizer which can drive H2 evolution under the illumination of near-infrared light above 700 nm. The electrochemical and photochemical studies reveal that the reductive quenching within the ion-pair adducts of [Ru3 (dmbpy)6 (MU-HAT)]6+ and ascorbate anions affords a singly reduced form of [Ru3 (dmbpy)6 (MU-HAT)]6+ , which is used as a reducing equivalent in the subsequent water reduction process. PMID- 29034548 TI - Electroacupuncture alleviates chemotherapy-induced pain through inhibiting phosphorylation of spinal CaMKII in rats. AB - BACKGROUND: Current medical treatments for chemotherapy-induced pain (CIP) are either ineffective or have adverse side effects. Acupuncture may alleviate CIP, but its effectiveness against this condition has not been studied. Paclitaxel causes neuropathic pain in cancer patients. METHODS: We evaluated the effects of electroacupuncture (EA) on paclitaxel-induced CIP in a rat model. Paclitaxel (2 mg/kg) or vehicle was injected (i.p.) on alternate days of 0-6. The resulting pain was treated with 10 Hz/2 mA/0.4 ms pulse EA for 30 min at the equivalent of human acupoint GB30 (Huantiao) once every other day between days 14 and 26. For sham control, EA needles were inserted into GB30 without stimulation. Von Frey filaments with bending forces of 2-8 g and 15 g were used to assess mechanical allodynia and hyperalgesia, respectively, on day 13 and once every other day between 14-26 days and then for 2-3 weeks after EA treatment. RESULTS: Compared to sham control, EA significantly alleviated paclitaxel-induced mechanical allodynia and hyperalgesia, as shown by less frequent withdrawal responses to the filaments. The alleviation of allodynia/hyperalgesia lasted up to 3 weeks after the EA treatment. EA significantly inhibited phosphorylation of Ca2+ /calmodulin dependent protein kinase II (CaMKII) in the spinal cord. KN-93, a selective inhibitor of p-CaMKII, inhibited mechanical allodynia/hyperalgesia and p-CaMKII. 5-HT1A receptor antagonist blocked EA inhibition of allodynia/hyperalgesia and p CaMKII. CONCLUSIONS: Electroacupuncture activates 5-HT 1A receptors in the spinal cord and inhibits p-CaMKII to alleviate both allodynia and hyperalgesia. The data support acupuncture/EA as a complementary therapy for CIP. SIGNIFICANCE: Electroacupuncture (EA) activates spinal 5-HT1A receptors to inhibit p-CaMKII to alleviate paclitaxel-induced pain. Acupuncture/EA may be used as a complementary therapy for CIP. PMID- 29034551 TI - Early breastfeeding practices: Descriptive analysis of recent Demographic and Health Surveys. AB - The aim of this study was to describe early breastfeeding practices (initiation within 1 hr of birth, no prelacteal feeding, and a combination of both-"optimal" early breastfeeding) according to childbirth location in low- and middle-income countries. Using data from the most recent Demographic and Health Survey (2000 2013) for 57 countries, we extracted information on the most recent birth for women aged 15-49 with a live birth in the preceding 24 months. Childbirth setting was self-reported by location (home or facility) and subtype (home delivery with or without a skilled birth attendant; public or private facility). We produced overall world and four region-level summary statistics by applying national population adjusted survey weights. Overall, 39% of children were breastfed within 1 hr of birth (region range 31-60%), 49% received no prelacteal feeding (41-65%), and 28% benefited from optimal early breastfeeding (21-46%). In South/Southeast Asia and Sub-Saharan Africa, early breastfeeding outcomes were more favourable for facility births compared to home births; trends were less consistent in Latin America and Middle East/Europe. Among home deliveries, there was a higher prevalence of positive breastfeeding practices for births with a skilled birth attendant across all regions other than Latin America. For facility births, breastfeeding practices were more favourable among those taking place in the public sector. This study is the most comprehensive assessment to date of early breastfeeding practices by childbirth location. Our results suggest that skilled delivery care-particularly care delivered in public sector facilities appears positively correlated with favourable breastfeeding practices. PMID- 29034552 TI - Cervical carcinomas with a micropapillary component: a clinicopathological study of eight cases. AB - AIMS: Micropapillary carcinomas, or carcinomas with a micropapillary component, are well recognised in the breast and other anatomical sites. However, they have seldom been described in the cervix. In this article, we present a clinicopathological analysis of eight cervical tumours that showed at least a focal (>=5%) component of micropapillary carcinoma. METHODS AND RESULTS: The study group comprised eight cervical carcinomas (four adenocarcinomas and four adenosquamous carcinomas) with a micropapillary component. The median patient age was 41.5 years (range 27-65 years). At presentation, five patients were stage IB, two were stage IIB, and one was stage IV. The micropapillary component accounted for <=25% of the tumour on initial biopsy or resection specimens in all but one case. Immunohistochemistry showed 'inside-out' (reverse polarity) mucin 1 staining along the cell membrane abutting the stroma. Four patients developed metastasis, all of whom showed a pure micropapillary pattern; this led to a misdiagnosis of an apparently independent peritoneal serous carcinoma in one case. All tumours showed diffuse p16 expression, and all three cases that were tested were positive for human papillomavirus (HPV) 18. Three of the six patients with at least 12 months of follow-up died of disease, and one is alive with distant metastasis. CONCLUSIONS: Usual-type (HPV-related) cervical carcinomas may show micropapillary differentiation, usually as a focal finding, and the cells show reverse polarity like similar tumours arising in other sites. Micropapillary cervical carcinoma appears to be a clinically aggressive malignancy, although this needs to be confirmed in larger studies. PMID- 29034554 TI - PD1 inhibitors and hair repigmentation: A desirable new side effect. PMID- 29034553 TI - Synthesis of Anisotropic Hydrogels and Their Applications. AB - Owing to their water-rich structures, which are similar to those of biological tissues, hydrogels have long been regarded as promising scaffolds for artificial tissues and organs. However, in terms of the structural anisotropy, most synthetic hydrogels are substantially different from biological systems. Synthetic hydrogels are usually composed of randomly oriented three-dimensional polymer networks whereas biological systems adopt anisotropic structures with hierarchically integrated building units. Such anisotropic structures often play essential roles in biological systems to exhibit particular functions. In this context, anisotropic hydrogels provide an entry point for exploring biomimetic applications of hydrogels. Reflecting these aspects, an increasing number of studies on anisotropic hydrogels have been reported recently. This Minireview highlights the use and perspectives of these anisotropic hydrogels, particularly focusing on their preparation, structures, and applications. PMID- 29034555 TI - Advances and insights into neurological practice 2016-17. PMID- 29034556 TI - Silicon Wafers with Facet-Dependent Electrical Conductivity Properties. AB - By breaking intrinsic Si (100) and (111) wafers to expose sharp {111} and {112} facets, electrical conductivity measurements on single and different silicon crystal faces were performed through contacts with two tungsten probes. While Si {100} and {110} faces are barely conductive at low applied voltages, as expected, the Si {112} surface is highly conductive and Si {111} surface also shows good conductivity. Asymmetrical I-V curves have been recorded for the {111}/{112}, {111}/{110}, and {112}/{110} facet combinations because of different degrees of conduction band bending at these crystal surfaces presenting different barrier heights to current flow. In particular, the {111}/{110} and {112}/{110} facet combinations give I-V curves resembling those of p-n junctions, suggesting a novel field effect transistor design is possible capitalizing on the pronounced facet-dependent electrical conductivity properties of silicon. PMID- 29034558 TI - Adolescent temperament dimensions as stable prospective risk and protective factors for salivary C-reactive protein. AB - OBJECTIVE: Temperament has associations with later physical health outcomes, yet there is a dearth of research exploring the connection between temperament and mechanisms that have known associations with these health outcomes. Recent research has delineated a connection between personality and inflammation during adulthood, but this association has not yet been studied in adolescent samples. DESIGN: We investigated whether stable adolescent temperament (averaged over two years), specifically effortful control and negative emotionality, provided a more robust prediction of inflammation as measured by salivary C-reactive protein (sCRP), than depressive symptoms. METHODS: Temperament and depressive symptoms were measured in a sample of sixty-three adolescents (37 males) when they were approximately 12 years old (mean age = 12.30, SD = 0.69) and again when they were approximately 14 years old (mean age = 14.84, SD = 0.49). Levels of sCRP were determined approximately 7 months later (mean = 6.77, SD = 2.99) when participants were approximately 15 years old (mean age = 15.49, SD = 0.49). RESULTS: Regression analyses revealed that effortful control (EC) was significantly associated with lower sCRP levels, while higher negative emotionality (NE) was significantly associated with higher sCRP levels. Furthermore, these associations were larger than those for depressive symptoms and were differentially impacted by the addition of covariates. Implications for the role of stable risk and protective factors in inflammatory processes are discussed. CONCLUSIONS: These findings are the first to show associations between adolescent temperament and inflammation. Furthermore, these findings extend previous personality research to temperamental research in a younger sample of adolescents. Statement of contribution What is already known? There is a large extant literature on the association between depressive symptoms and inflammation. There is a smaller extant literature on the association between personality and inflammation. No studies have examined how adolescent temperament traits may relate to inflammation. What does this study add? Longitudinal data collection over the course of 3 years in an adolescent sample. Addresses the question of whether temperament factors relate to inflammation. Temperament provides a more robust predictor of later inflammation than depressive symptoms. PMID- 29034559 TI - Healthcare and wider societal implications of stillbirth: a population-based cost of-illness study. AB - OBJECTIVE: To extend previous work and estimate health and social care costs, litigation costs, funeral-related costs, and productivity losses associated with stillbirth in the UK. DESIGN: A population-based cost-of-illness study using a synthesis of secondary data. SETTING: The National Health Service (NHS) and wider society in the UK. POPULATION: Stillbirths occurring within a 12-month period and subsequent events occurring over the following 2 years. METHODS: Costs were estimated using published data on events, resource use, and unit costs. MAIN OUTCOME MEASURES: Mean health and social care costs, litigation costs, funeral related costs, and productivity costs for 2 years, reported for a single stillbirth and at a national level. RESULTS: Mean health and social care costs per stillbirth were L4191. Additionally, funeral-related costs were L559, and workplace absence (parents and healthcare professionals) was estimated to cost L3829 per stillbirth. For the UK, the annual health and social care costs were estimated at L13.6 million, and total productivity losses amounted to L706.1 million (98% of this cost was attributable to the loss of the life of the baby). The figures for total productivity losses were sensitive to the perspective adopted about the loss of life of the baby. CONCLUSION: This work expands the current intelligence on the costs of stillbirth beyond the health service to costs for parents and society, and yet these additional findings must still be regarded as conservative estimates of the true economic costs. TWEETABLE ABSTRACT: The costs of stillbirth are significant, affecting the health service, parents, professionals, and society. PLAIN LANGUAGE SUMMARY: Why and how was the study carried out? The personal, social, and emotional consequences of stillbirth are profound. Placing a monetary value on such consequences is emotive, yet necessary, when deciding how best to invest limited healthcare resources. We estimated the average costs associated with a single stillbirth and the costs for all stillbirths occurring in the UK over a 1-year period. What were the main findings? The average cost to the National Health Service (NHS) of care related to the stillbirth and a first subsequent pregnancy was L4191 for each stillbirth. For the UK, this cost was L13.6 million annually. Clinical negligence payments to bereaved parents were estimated at L2.5 million per year. Parents were estimated to spend L1.8 million per year on funerals. The cost of workplace absence as parents cope with the effects of grief was estimated at L2476 per stillbirth. For the UK, this cost was L8.1 million annually. The loss of a baby is also the loss of an individual with the potential to become a valued and productive member of society. The expected value of an adult's lifetime working hours was taken as an estimate of this productivity loss, and was L213,304 for each stillbirth. The annual cost for all stillbirths was L694 million. We know from parents that the birth of a subsequent child in no way replaces a stillborn baby. We found that 52% of women fall pregnant within 12 months of a stillbirth. From a purely economic perspective concerned only with the number of individuals in society, babies born during this period could potentially replace the productivity losses of the stillborn baby. Adopting this approach, which we understand is controversial and difficult for bereaved parents, the expected productivity losses would be lower, at L333 million. What are the limitations of the work? For some categories, existing data were unavailable and we used clinical opinion to estimate costs. Furthermore, we were unable to quantify some indirect consequences, for example the psychological distress experienced by wider family members. What is the implication for parents? Placing a monetary value on what is for parents a profound personal tragedy may seem unkind. It is, however, unavoidable if we are to provide policy makers with vital information on the wide ranging consequences that could be prevented through future investments in initiatives to reduce stillbirth. PMID- 29034561 TI - Reduction of a Cerium(III) Siloxide Complex To Afford a Quadruple-Decker Arene Bridged Cerium(II) Sandwich. AB - Organometallic multi-decker sandwich complexes containing f-elements remain rare, despite their attractive magnetic and electronic properties. The reduction of the CeIII siloxide complex, [KCeL4 ] (1; L=OSi(OtBu)3 ), with excess potassium in a THF/toluene mixture afforded a quadruple-decker arene-bridged complex, [K(2.2.2 crypt)]2 [{(KL3 Ce)(MU-eta6 :eta6 -C7 H8 )}2 Ce] (3). The structure of 3 features a [Ce(C7 H8 )2 ] sandwich capped by [KL3 Ce] moieties with a linear arrangement of the Ce ions. Structural parameters, UV/Vis/NIR data, and DFT studies indicate the presence of CeII ions involved in delta bonding between the Ce cations and toluene dianions. Complex 3 is a rare lanthanide multi-decker complex and the first containing non-classical divalent lanthanide ions. Moreover, oxidation of 1 by AgOTf (OTf=O3 SCF3 ) yielded the CeIV complex, [CeL4 ] (2), showing that siloxide ligands can stabilize Ce in three oxidation states. PMID- 29034560 TI - Estimation of a significance threshold for epigenome-wide association studies. AB - Epigenome-wide association studies (EWAS) are designed to characterise population level epigenetic differences across the genome and link them to disease. Most commonly, they assess DNA-methylation status at cytosine-guanine dinucleotide (CpG) sites, using platforms such as the Illumina 450k array that profile a subset of CpGs genome wide. An important challenge in the context of EWAS is determining a significance threshold for declaring a CpG site as differentially methylated, taking multiple testing into account. We used a permutation method to estimate a significance threshold specifically for the 450k array and a simulation extrapolation approach to estimate a genome-wide threshold. These methods were applied to five different EWAS datasets derived from a variety of populations and tissue types. We obtained an estimate of alpha=2.4*10-7 for the 450k array, and a genome-wide estimate of alpha=3.6*10-8. We further demonstrate the importance of these results by showing that previously recommended sample sizes for EWAS should be adjusted upwards, requiring samples between ~10% and ~20% larger in order to maintain type-1 errors at the desired level. PMID- 29034562 TI - Canine central corneal thickness measurements via Pentacam-HR(r) , optical coherence tomography (Optovue iVue(r) ), and high-resolution ultrasound biomicroscopy. AB - OBJECTIVE: To compare central corneal thickness (CCT) values in canine eyes using Pentacam-HR(r) Scheimpflug imaging (Pentacam), Optovue(r) iVue spectral-domain optical coherence tomography (SD-OCT), and high-resolution ultrasound biomicroscopy (UBM) and generate normative canine Pentacam CCT values. ANIMALS STUDIED: Twenty-four client-owned dogs (37 eyes) with nondiseased cornea(s) presenting to the Colorado State University Veterinary Teaching Hospital. PROCEDURES: Corneal images were acquired via Pentacam, SD-OCT, and UBM in the listed order. Machine-calculated values of CCT from Pentacam and SD-OCT were compared to operator-measured values from UBM. Bland-Altman analysis was performed to evaluate agreement between instruments. RESULTS: Mean CCT +/- SD measured by Pentacam was 629.73 +/- 64.57 MUm, by SD-OCT was 610.56 +/- 57.48 MUm, and by UBM was 689.77 +/- 55.93 MUm. On average, Pentacam CCT was 19.17 +/- 32.90 MUm (3%) thicker than SD-OCT and 65.12 +/- 44.52 MUm (10.3%) thinner than UBM. SD-OCT was on average 82.47 MUm (13.5% ) thinner than UBM. The 95% limits of agreement were (-45.31, 83.65), (-152.38, 22.13), and (-126.674, -38.270) for Pentacam vs. SD-OCT, Pentacam vs. UBM, and SD-OCT vs. UBM respectively. All differences were statistically significant (P < 0.01). CONCLUSIONS: Considering there is an average of 7.5% normal diurnal variation in canine CCT, a 3.0% difference between Pentacam and SD-OCT values is likely not clinically relevant. However, Pentacam measurements were both statistically and clinically significantly different from UBM and SD-OCT measurements. PMID- 29034563 TI - Heart failure study of multipoint pacing effects on ventriculoarterial coupling: Rationale and design of the HUMVEE trial. AB - Cardiac resynchronization therapy (CRT) is an established therapy for symptomatic heart failure (HF). Unfortunately, many recipients remain nonresponders. Studies have revealed the potential role of multipoint pacing (MPP) in improving response and outcomes. The aim of this study is to compare the effects of MPP against those of standard biventricular pacing (BVP) on (i) ventriculoarterial coupling (VAC) and energy efficiency of the failing heart, (ii) diastolic function, (iii) quality of life, and (iv) NT-proBNP levels and glomerular filtration rate (GFR) during a follow-up of 13 months. HUMVEE is a single-center, prospective, observational, crossover cohort study. Seventy-six patients with BVP indication will be implanted with a system able to deliver both pacing modes. BVP will be activated at implantation and optimized 1 month after. At 6 months postoptimization MPP will be activated and optimized. Optimization will be performed based on stroke volume maximization, as assessed by ultrasound. Laboratory measurements (GFR and NT-proBNP) and echocardiographic studies (VAC calculation, strain rate, diastolic function) will be performed at implantation, 6 months post-BVP optimization and at the end of 13 months of follow-up (6 months post-MPP optimization). Potential reduction in arrhythmogenesis by MPP will also be assessed. MPP is a pacing modality with the potential to improve HF patients' outcomes. The HUMVEE trial will attempt to associate any potential added beneficial effects of MPP over standard BVP with alterations in VAC and energy efficiency of the heart, thus uncovering a novel mechanistic link between MPP and improved outcomes in HF. PMID- 29034564 TI - A report from #BlueJC: Would you recommend cranberry capsules to prevent postoperative bacteriuria? PMID- 29034565 TI - Shifts of growing-season precipitation peaks decrease soil respiration in a semiarid grassland. AB - Changing precipitation regimes could have profound influences on carbon (C) cycle in the biosphere. However, how soil C release from terrestrial ecosystems responds to changing seasonal distribution of precipitation remains unclear. A field experiment was conducted for 4 years (2013-2016) to examine the effects of altered precipitation distributions in the growing season on soil respiration in a temperate steppe in the Mongolian Plateau. Over the 4 years, both advanced and delayed precipitation peaks suppressed soil respiration, and the reductions mainly occurred in August. The decreased soil respiration could be primarily attributable to water stress and subsequently limited plant growth (community cover and belowground net primary productivity) and soil microbial activities in the middle growing season, suggesting that precipitation amount in the middle growing season is more important than that in the early, late, or whole growing seasons in regulating soil C release in grasslands. The observations of the additive effects of advanced and delayed precipitation peaks indicate semiarid grasslands will release less C through soil respiratory processes under the projected seasonal redistribution of precipitation in the future. Our findings highlight the potential role of intra-annual redistribution of precipitation in regulating ecosystem C cycling in arid and semiarid regions. PMID- 29034566 TI - Activation and Deactivation of Gold/Ceria-Zirconia in the Low-Temperature Water Gas Shift Reaction. AB - Gold (Au) on ceria-zirconia is one of the most active catalysts for the low temperature water-gas shift reaction (LTS), a key stage of upgrading H2 reformate streams for fuel cells. However, this catalyst rapidly deactivates on-stream and the deactivation mechanism remains unclear. Using stop-start scanning transmission electron microscopy to follow the exact same area of the sample at different stages of the LTS reaction, as well as complementary X-ray photoelectron spectroscopy, we observed the activation and deactivation of the catalyst at various stages. During the heating of the catalyst to reaction temperature, we observed the formation of small Au nanoparticles (NPs; 1-2 nm) from subnanometer Au species. These NPs were then seen to agglomerate further over 48 h on-stream, and most rapidly in the first 5 h when the highest rate of deactivation was observed. These findings suggest that the primary deactivation process consists of the loss of active sites through the agglomeration and possible dewetting of Au NPs. PMID- 29034567 TI - Timeframe of socket cortication after tooth extraction: A retrospective radiographic study. AB - OBJECTIVES: To assess the timeframe between tooth extraction and radiographically detectable socket cortication in humans. METHODS: Two hundred and fifty patients with a CT scan <=36 months after tooth extraction were included. First, three orthoradial multiplanar reconstruction slices, representing the major part of the extraction socket, were scored regarding the degree of bone healing as (i) healed, that is, complete/continuous cortication of the socket entrance, or (ii) non-healed. Thereafter, based on the results of all three slices, the stage of cortication of the extraction socket, as one unit, was classified as (i) non corticated, that is, all three slices judged as non-healed, (ii) partially corticated, that is, 1 or 2 slices judged as non-healed, or (iii) completely corticated, that is, all three slices judged as healed. The possible effect of several independent parameters, that is, age, gender, timeframe between tooth extraction and CT scan, tooth type, extent of radiographic bone loss of the extracted tooth, tooth-gap type, smoking status, presence of any systemic disease, and medication intake, on cortication status was statistically evaluated. RESULTS: Three to 6 months after tooth extraction, 27% of the sockets were judged as non-corticated and 53% were judged as partially corticated. After 9-12 months, >80% of the sockets were corticated, while some incompletely corticated sockets were detected up to 15 months after extraction. Each additional month after tooth extraction contributed significantly to a higher likelihood of a more advanced stage of cortication, while radiographic bone loss >=75% significantly prolonged cortication time; no other independent variable had a significant effect. CONCLUSIONS: The results indicate a considerably long timeframe until complete cortication of an extraction socket, that is, 3-6 months after tooth extraction 3 of 4 sockets were still not completely corticated, and only after 9-12 months, complete cortication was observed in about 80% of the sockets. PMID- 29034568 TI - Innovation not recovery: dynamic redox promotes metazoan radiations. AB - Environmental fluctuations in redox may reinforce rather than hinder evolutionary transitions, such that variability in near-surface oceanic oxygenation can promote morphological evolution and novelty. Modern, low-oxygen regions are heterogeneous and dynamic habitats that support low diversity and are inhabited by opportunistic and non-skeletal metazoans. We note that several major radiation episodes follow protracted or repeating intervals (>1 million years) of persistent and dynamic shallow marine redox (oceanic anoxic events). These are also often associated with short-lived mass-extinction events (<0.5 million years) where skeletal benthic incumbents are removed, and surviving or newly evolved benthos initially inhabit transient oxic habitats. We argue that such intervals create critical opportunities for the generation of evolutionary novelty, followed by innovation and diversification. We develop a general model for redox controls on the distribution and structure of the shallow marine benthos in a dominantly anoxic world, and compile data from the terminal Ediacaran-mid-Cambrian (~560-509 Ma), late Cambrian-Ordovician (~500-445 Ma), and Permo-Triassic (~255-205 Ma) to test these predictions. Assembly of phylogenetic data shows that prolonged and widespread anoxic intervals indeed promoted morphological novelty in soft-bodied benthos, providing the ancestral stock for subsequently skeletonized lineages to appear as innovations once oxic conditions became widespread and stable, in turn promoting major evolutionary diversification. As a result, we propose that so-called 'recovery' intervals after mass extinctions might be better considered as 'innovation' intervals. PMID- 29034569 TI - Gold-Doping of Double-Crown Pd Nanoclusters. AB - Double-crown Ni, Pd, or Pt nanoclusters have attracted extensive interests due to their aesthetic structure and intriguing properties. However, their doping by other metals remains unknown until now. Herein, Pd4 (PET)8 and Pd5 (PET)10 (PET: SCH2 CH2 Ph) were successfully doped with gold and the doped nanoclusters were characterized by using multiple techniques such as mass spectrometry and X-ray crystallography. It is revealed that in the doping not one but two gold atoms replace one Pd with the other double-crown structure essentially unchanged, and the gold-doping results in the blue-shift of the maximum visible absorption, the increase of optical energy gap and the reduction of anti-aromaticity of monometal Pd nanoclusters. Importantly, it is found that Au4 Pd2 (PET)8 nanocluster bears chirality originating from not only the helixed Au4 Pd2 S8 framework, but also unanimous R or S configuration of sulfur atoms in the enantiomer. For the latter chirality origin, it was not previously reported or proposed. Au4 Pd2 (PET)8 reported here also represents the smallest chiral bimetal nanocluster so far to the best of our knowledge. This work advances one step toward both the tailoring of group 10 metal nanoclusters by doping and the understanding of chirality origin for metal nanoclusters. PMID- 29034570 TI - Efficacy of different carriers for the triple antibiotic powder during regenerative endodontic procedures. AB - Chemical debridement during Regenerative Endodontic procedures is important. Previous research studies have evaluated various antibiotics and their concentrations but none have addressed the concern of delivering these materials. Hence, the purpose of this study was to determine what carrier could be used effectively in a clinical setting. Sixty caries-free maxillary incisors were used and inoculated with Enterococcus faecalis and divided into positive and irrigation controls and experimental groups that had triple antibiotic powder (1:1:1 ciprofloxacin:metronidazole:minocycline) delivered using various carriers: saline, cotton, sponge and methylcellulose. Current AAE regenerative protocols were followed. S2 sampling was performed and tested for bacterial presence via culturing and SEM. The results demonstrated that saline was the most effective carrier for the triple antibiotic powder while cotton and sponge were most ineffective. Saline and methylcellulose both reduced bacterial counts to a significant level. Overall, this study demonstrated that saline as a carrier was most effective and should be routinely used. PMID- 29034572 TI - Epidemiology and molecular characterization of Porcine teschovirus in Hunan, China. AB - Porcine teschoviruses (PTVs) have been shown to be widely distributed in pig populations. In this study, 261 faecal and 91 intestinal content samples collected from pigs at 29 farms in Hunan, China, were tested for the presence of PTV by reverse transcription-polymerase chain reaction (RT-PCR). An overall PTV positivity rate of 19.03% was detected by RT-PCR, and a high PTV infection rate was circulating in asymptomatic fattening and nursery pigs. In total, 40 PTV isolates (PTV-HuNs) were obtained. Alignment of their coding sequences with those of other known PTVs revealed that the genomic sequence of the polyprotein contains 6,606-6,621 nucleotides, encoding a 2,202-2,207-amino acid sequence. Phylogenetic analyses based on the VP1 gene and capsid protein gene exhibited 13 main lineages corresponding to PTV serotypes 1-13, and seven PTV serotypes (PTV 2 6, 9, and 11) were identified in the isolates obtained in our study; this is the first report of PTV 5, 9 and 11 in China. Recombination analysis among the PTV HuNs indicated that nine recombination events have occurred, including both inter and intraserotype events. In addition, results demonstrated that only limited positive selection is acting on the global population of PTV isolates, and purifying selection is predominant. In conclusion, this study revealed a high infection rate of PTVs circulating in asymptomatic fattening and nursery pigs. The 40 PTV-HuNs showed high genetic diversity, and genetic analysis of all available PTV sequences revealed that strong purifying selection and recombination play important roles in the genetic diversity and evolution of the virus. PMID- 29034573 TI - Memory encoding-related anterior hippocampal potentials are modulated by deep brain stimulation of the entorhinal area. AB - BACKGROUND: Deep brain stimulation (DBS) of the human entorhinal area using 50 Hz pulses has revealed conflicting results regarding memory performance. Moreover, its impact on memory-related hippocampal potentials has not yet been investigated. METHODS: We recorded data from seven epilepsy patients implanted with depth electrodes in the entorhinal cortex, hippocampus, amygdala, and parahippocampal cortex. Entorhinal DBS (bipolar, biphasic 50 Hz pulses, on- and off-cycles of 15 s) was applied with low amplitude (0.1 mA) to resemble physiologic conditions. During DBS on- and off-periods, patients learned noun color associations that were later tested. RESULTS: During entorhinal DBS we observed more positive deflections of event-related potentials (ranging from 700 to 950 ms) in the anterior hippocampus for the on- vs. off-condition. We detected no effects in the amygdala, mid hippocampus and parahippocampal cortex. On the behavioral level, no differences in memory performance (item and source memory) were apparent in the on- vs. off-condition, neither across all trials nor across patients. DISCUSSION: Our findings indicate that entorhinal DBS with low amplitude has an impact on memory encoding-related potentials within the anterior hippocampus, but not on memory performance per se. PMID- 29034571 TI - Association between subclinical thyroid dysfunction and change in bone mineral density in prospective cohorts. AB - BACKGROUND: Subclinical hyperthyroidism (SHyper) has been associated with increased risk of hip and other fractures, but the linking mechanisms remain unclear. OBJECTIVE: To investigate the association between subclinical thyroid dysfunction and bone loss. METHODS: Individual participant data analysis was performed after a systematic literature search in MEDLINE/EMBASE (1946-2016). Two reviewers independently screened and selected prospective cohorts providing baseline thyroid status and serial bone mineral density (BMD) measurements. We classified thyroid status as euthyroidism (thyroid-stimulating hormone [TSH] 0.45 4.49 mIU/L), SHyper (TSH < 0.45 mIU/L) and subclinical hypothyroidism (SHypo, TSH >= 4.50-19.99 mIU/L) both with normal free thyroxine levels. Our primary outcome was annualized percentage BMD change (%DeltaBMD) from serial dual X-ray absorptiometry scans of the femoral neck, total hip and lumbar spine, obtained from multivariable regression in a random-effects two-step approach. RESULTS: Amongst 5458 individuals (median age 72 years, 49.1% women) from six prospective cohorts, 451 (8.3%) had SHypo and 284 (5.2%) had SHyper. During 36 569 person years of follow-up, those with SHyper had a greater annual bone loss at the femoral neck versus euthyroidism: %DeltaBMD = -0.18 (95% CI: -0.34, -0.02; I2 = 0%), with a nonstatistically significant pattern at the total hip: %DeltaBMD = 0.14 (95% CI: -0.38, 0.10; I2 = 53%), but not at the lumbar spine: %DeltaBMD = 0.03 (95% CI: -0.30, 0.36; I2 = 25%); especially participants with TSH < 0.10 mIU/L showed an increased bone loss in the femoral neck (%Delta BMD = -0.59; [95% CI: -0.99, -0.19]) and total hip region (%DeltaBMD = -0.46 [95% CI: -1.05, 0.13]). In contrast, SHypo was not associated with bone loss at any site. CONCLUSION: Amongst adults, SHyper was associated with increased femoral neck bone loss, potentially contributing to the increased fracture risk. PMID- 29034574 TI - Morphometric and histologic characterization of alveolar bone from hypertensive patients. AB - BACKGROUND: Hypertension is considered a risk factor in implant dentistry but the underlying reasons remain unclear. It may be that hypertension has a negative impact on the local bone quality. PURPOSE: Here we evaluated the structural and histological parameters of bone collected from hypertensive patients treated by antagonists of the renin-angiotensin system, and of bone collected from normotensive patients. MATERIAL AND METHODS: A total of 30 patients were referred for rehabilitation with dental implants to be placed in the posterior mandible. The first group were hypertensive patients treated with RAS antagonists. The second group were normotensive patients not taking medication. Bone biopsies collected during implant installation were subjected to analysis. Micro CT revealed the structural parameters. Histological analyses together with immunohistochemical staining of osteogenic markers were performed. RESULTS: The structural parameters of bone volume, trabecular thickness, trabecular number, separation of the trabecular, and total porosity were similar between the 2 groups (P > .05). The histological appearance of bone derived from hypertensive patients was normal. The staining pattern of Runx-2, osteopontin, and osteocalcin were comparable in both groups. CONCLUSIONS: These observations suggest that hypertensive patients treated with renin-angiotensin system antagonists have regular alveolar bone with respect to bone structure and histological parameters. PMID- 29034575 TI - Life after prostate cancer: A systematic literature review and thematic synthesis of the post-treatment experiences of Black African and Black Caribbean men. AB - Evidence shows that there are significant ethnic variations in prostate cancer prevalence and outcomes. Specifically, Black African and Black Caribbean men may encounter different post-treatment experiences than Caucasian men due to their disproportionately higher risk of being diagnosed with advanced prostate cancer. But to date, no review of these experiences has been undertaken. This review synthesised findings from existing literature on the post-treatment experiences of Black African and Black Caribbean men with prostate cancer and identified pertinent issues which may be useful to inform practice and future research. Seven databases were systematically searched using developed search terms. Four qualitative studies were identified and critically appraised. Findings are summarised under four main themes: symptom experience, healthcare experience, marital and social relationships and coping strategies. Cultural definitions of masculinity influenced the meanings men gave to their post-treatment experiences. While men's experiences of healthcare varied, the provision of professional support to address their post-treatment distress was lacking. Men derived most support from wives, peers and church communities. A culturally sensitive approach which recognises diversity among Black African and Black Caribbean populations and treats individuals within their religious and socio-cultural contexts could potentially improve men's post-treatment experiences. Areas for further research were also identified. PMID- 29034576 TI - Substantial Variability Across Individuals in the Vascular and Nutrigenomic Response to an Acute Intake of Curcumin: A Randomized Controlled Trial. AB - SCOPE: Curcumin exerts biological activities of interest in cardiovascular prevention. However, its vascular protective effect is still poorly investigated in humans. The present study aims to assess vascular effect of an acute intake of curcumin and its nutrigenomic impact in circulating immune cells. METHODS AND RESULTS: In a randomized, double-blind, crossover design, 18 healthy smokers consume a placebo or a 5-g curcumin. Before and 2 h after the intake, vascular function measurements are performed by using flow-mediated dilation (FMD). In addition, endothelial function in the microcirculation and blood pressure are evaluated. Plasma curcumin concentrations and changes in gene expression in peripheral blood mononuclear cells (PBMC) are analyzed. No significant effect of curcumin on FMD is observed when considering the entire study population, mainly due to a high interindividual variability. A subgroup analysis according to the gender or the cardiovascular-risk score reveals a significant effect of curcumin on FMD in women and in subjects presenting lower cardiovascular risk. No change in gene expression is observed when data are analyzed for all volunteers but changes in expression are observed when analyzed according to gender. CONCLUSIONS: This clinical trial highlights that a substantial variability in efficacy of curcumin exists across individuals. PMID- 29034577 TI - Untargeted GC-MS Metabolomics Reveals Changes in the Metabolite Dynamics of Industrial Scale Batch Fermentations of Streptoccoccus thermophilus Broth. AB - An industrial scale biomass production using batch or fed-batch fermentations usually optimized by selection of bacterial strains, tuning fermentation media, feeding strategy, and temperature. However, in-depth investigation of the biomass metabolome during the production may reveal new knowledge for better optimization. In this study, for the first time, the authors investigated seven fermentation batches performed on five Streptoccoccus thermophilus strains during the biomass production at Chr. Hansen (Denmark) in a real life large scale fermentation process. The study is designed to investigate effects of batch fermentation, fermentation time, production line, and yeast extract brands on the biomass metabolome using untargeted GC-MS metabolomics. Processing of the raw GC MS data using PARAFAC2 revealed a total of 90 metabolites out of which 64 are identified. Partitioning of the data variance according to the experimental design was performed using ASCA and revealed that batch and fermentation time effects and their interaction term were the most significant effects. The yeast extract brand had a smaller impact on the biomass metabolome, while the production line showed no effect. This study shows that in-depth metabolic analysis of fermentation broth provides a new tool for advanced optimization of high-volume-low-cost biomass production by lowering the cost, increase the yield, and augment the product quality. PMID- 29034578 TI - A prospective, split-mouth study comparing tilted implants with angulated connection versus conventional implants with angulated abutment. AB - BACKGROUND: An angulation of the implant connection could overcome the problems related to angulated abutments. PURPOSE: This study compares conventional implants with angulated abutment to tilted implants with an angulated connection. MATERIALS AND METHODS: Twenty patients were treated in the edentulous mandible. In the posterior jaw locations, one conventional tilted implant with angulated abutment and one angulated implant without abutment were placed. In the anterior jaw, two conventional implants were placed, one with and one without abutment. Implants were immediately loaded and 3 months later, the final bridge (PFM or monolithic zirconia) was placed. RESULTS: After a follow-up of 48 months, 17 patients were available for clinical examination. The mean overall marginal bone loss (MBL) was 1.26 mm. No significant differences in implant survival, MBL, periodontal indices, patients' satisfaction, or complications was found between implants restored on abutment or implant level, between the posteriorly located angulated implant nor angulated abutment, and between both anterior implants with or without abutment. The posterior implants demonstrated less MBL compared to the anterior implants (P < .001). There was no significant difference in MBL between the implants restored with zirconia or PFM bridges (P = .294). Overall mean pocket depth was 2.83 mm. More plaque was found in the PFM group compared to the full-zirconia group, at the bridge (P = .042) and the implants (P = .029). There was no difference between both materials in pocket depth (P = .635) or bleeding (P = .821). One zirconia bridge fractured, two angulated abutment were replaced and four loose bridge screws connected to the angulated abutments had to be tightened. Patients were overall satisfied (4.74/5). CONCLUSION: An implant with angulated connection may results in a stronger connection but does not affect the marginal bone loss. No difference in MBL was seen between implants restored on abutment or implant level. Zirconia seems to reduce the amount of plaque. PMID- 29034579 TI - Rotary versus reciprocating shaping files in bacterial elimination from long oval canals. AB - A comparison of the abilities of rotary versus reciprocating files to eliminate viable Enterococcus faecalis populations from the long oval root canals of extracted human teeth. Fifty teeth were contaminated and randomly distributed into two groups (n = 25 each): BT-RaCe group and WaveOne group. Two microbial samples were obtained from each tooth before (S1) and after (S2) instrumentation. The CFUs from the S1 and S2 measurements were calculated and compared between the groups. Both groups showed significantly fewer CFUs in the S2 samples (P < 0.001). In the S2 intragroup comparison, BT-RaCe resulted in significantly fewer CFUs than WaveOne (P = 0.010). In the direct comparison between the rotary multiple file shaping system and the reciprocating single-file system, the multiple file system was more efficient at reducing the microbiological load of viable E. faecalis from long oval root canals. PMID- 29034580 TI - Selective inhibition of TRPM2 channel by two novel synthesized ADPR analogues. AB - Transient receptor potential melastatin-2 (TRPM2) channel critical for monitoring internal body temperature is implicated in the pathological processes such as neurodegeneration. However, lacking selective and potent TRPM2 inhibitors impedes investigation and validation of the channel as a drug target. To discover novel and selective TRPM2 inhibitors, a series of adenosine 5'-diphosphoribose analogues were synthesized, and their activities and selectivity were evaluated. Whole-cell patch-clamp recordings were employed for screen and evaluation of synthesized compounds. Two compounds, 7i and 8a, were identified as TRPM2 inhibitors with IC50 of 5.7 and 5.4 MUm, respectively. Both 7i and 8a inhibited TRPM2 current without affecting TRPM7, TRPM8, TRPV1 and TRPV3. These two TRPM2 inhibitors can serve as new pharmacological tools for further investigation and validation of TRPM2 channel as a drug target, and the summarized structure activity relationship (SAR) may also provide insights into further improving existing inhibitors as potential lead compounds. PMID- 29034581 TI - A novel single nucleotide deletion mutation in exon 2 (HBB: c240delC) of beta globin gene: A case report. PMID- 29034582 TI - Detection of Brucella abortus B19 strain DNA in seminal plasma by polymerase chain reaction in Brazil. AB - A total of 27 seminal plasma samples from cattle-breeding farms or semen centres located in Minas Gerais, Brazil, previously negative by serological and tested positive for Brucella spp. with primer specific for the amplification of the gene virb5 by polymerase chain reaction (PCR) were analysed for the detection of Brucella abortus DNA by PCR. It was found that nine samples (33.33%) contained B. abortus B19 strain DNA, two (7.40%) contained B. abortus DNA and five (18.51%) contained both DNA. The larger number of samples with B. abortus B19 strain DNA would explained by the environmental contamination by vaccinated females with persistent excretion or some illegal vaccination process. It is first reported of male bovines detected with both DNA. PMID- 29034583 TI - The effect of head-up tilt upon markers of heart rate variability in patients with atrial fibrillation. AB - BACKGROUND: Heart rate variability (HRV) analysis is uncommonly undertaken in patients with atrial fibrillation (AF) due to an assumption that ventricular response is random. We sought to determine the effects of head-up tilt (HUT), a stimulus known to elicit an autonomic response, on HRV in patients with AF; we contrasted the findings with those of patients in sinus rhythm (SR). METHODS: Consecutive, clinically indicated tilt tests were examined for 207 patients: 176 in SR, 31 in AF. Patients in AF were compared to an age-matched SR cohort (n = 69). Five minute windows immediately before and after tilting were analyzed using time-domain, frequency-domain and nonlinear HRV parameters. Continuous, noninvasive assessment of blood pressure, heart rate and stroke volume were available in the majority of patients. RESULTS: There were significant differences at baseline in all HRV parameters between AF and age matched SR. HUT produced significant hemodynamic changes, regardless of cardiac rhythm. Coincident with these hemodynamic changes, patients in AF had a significant increase in median [quartile 1, 2] DFA-alpha2 (+0.14 [-0.03, 0.32], p < .005) and a decrease in sample entropy (-0.17 [-0.50, -0.01], p < .005). CONCLUSION: In the SR cohort, increasing age was associated with fewer HRV changes on tilting. Patients with AF had blunted HRV responses to tilting, mirroring those seen in an age matched SR group. It is feasible to measure HRV in patients with AF and the changes observed on HUT are comparable to those seen in patients in sinus rhythm. PMID- 29034585 TI - Corrigendum. PMID- 29034586 TI - Avoiding Internal Capsule Stimulation With a New Eight-Channel Steering Deep Brain Stimulation Lead. AB - OBJECTIVE: Novel deep brain stimulation (DBS) lead designs are currently entering the market, which are hypothesized to provide a way to steer the stimulation field away from neural populations responsible for side effects and towards populations responsible for beneficial effects. The objective of this study is to assess the performances of a new eight channel steering-DBS lead and compare this with a conventional cylindrical contact (CC) lead. APPROACH: The two leads were evaluated in a finite element electric field model combined with multicompartment neuron and axon models, representing the internal capsule (IC) fibers and subthalamic nucleus (STN) cells. We defined the optimal stimulation setting as the configuration that activated the highest percentage of STN cells, without activating any IC fibers. With this criterion, we compared monopolar stimulation using a single contact of the steering-DBS lead and CC lead, on three locations and four orientations of the lead. In addition, we performed a current steering test case by dividing the current over two contacts with the steering-DBS lead in its worst-case orientation. MAIN RESULTS: In most cases, the steering-DBS lead is able to stimulate a significantly higher percentage of STN cells compared to the CC lead using single contact stimulation or using a two contact current steering protocol when there is approximately a 1 mm displacement of the CC lead. The results also show that correct placement and orientation of the lead in the target remains an important aspect in achieving the optimal stimulation outcome. SIGNIFICANCE: Currently, clinical trials are set up in Europe with a similar design as the steering-DBS lead. Our results illustrate the importance of the orientation of the new steering-DBS lead in avoiding side effects induced by stimulation of IC fibers. Therefore, in clinical trials sufficient attention should be paid to implanting the steering DBS-lead in the most effective orientation. PMID- 29034587 TI - Open Fluidics: A Cell Culture Flow System Developed Over Wettability Contrast Based Chips. AB - Biological tissues are recurrently exposed to several dynamic mechanical forces that influence cell behavior. On this work, the focus is on the shear stress forces induced by fluid flow. The study of flow-induced effects on cells leads to important advances in cardiovascular, cancer, stem cell, and bone biology understanding. These studies are performed using cell culture flow (CCF) systems, mainly parallel plate flow chambers (PPFC), and microfluidic systems. Here, it is proposed an original CCF system based on the open fluidics concept. The system is developed using a planar superhydrophobic platform with hydrophilic paths. The paths work as channels to drive cell culture medium flows without using walls for liquid confinement. The liquid streams are controlled just based on the wettability contrast. To validate the concept, the effect of the shear stress stimulus in the osteogenic differentiation of C2C12 myoblast cells is studied. Combining bone morphogenic protein (specifically BMP-2) stimulation with this mechanical stimulus, a synergistic effect is found on osteoblast differentiation. This effect is confirmed by the enhancement of alkaline phosphatase activity, a well-known early marker of osteogenic differentiation. The suggested CCF system combines characteristics and advantages of both the PPFC and microfluidic systems. PMID- 29034588 TI - Clinical and demographic differences between patients with manic, depressive and schizophrenia-spectrum psychoses presenting to Early Intervention Services in London. AB - AIM: To investigate the relationship between the presenting clinical and demographic characteristics in first-episode psychosis (FEP) patients with their clinical diagnostic grouping 1 year later. METHODS: Data from 1014 first presentation psychosis patients from seven London-based Early Intervention Services were extracted from the MiData audit database. Associations between clinical and demographic measures at presentation and clinical diagnosis made at 1 year were assessed with analysis of variance (ANOVA) and Chi-square tests. RESULTS: The sample comprised 76% of patients with schizophrenia-spectrum diagnoses, 9% with manic psychoses (MP) and 6% with depressive psychoses. Compared to the other 2 groups, patients who were diagnosed as having MP were younger, with higher education and shorter duration of untreated psychosis, and had higher Young Mania Rating Scale scores at presentation and lower Positive and Negative Syndrome Scale (PANSS) negative scores. Patients diagnosed at 1 year as having depressive psychosis were older and more likely to be white, with the lowest PANSS positive scores at baseline. Patients diagnosed at 1 year as having schizophrenia spectrum diagnoses were more likely to be males. Patients in the 3 diagnostic subgroups of psychosis differed on both clinical and demographic characteristics at presentation. CONCLUSIONS: There were significant clinical and demographic differences at presentation between FEP patients who received different clinical diagnoses at 1 year. Future work should determine the extent to which these differences can be used to guide clinical care. PMID- 29034590 TI - Bimatoprost ophthalmic solution in facial vitiligo. AB - BACKGROUND: Vitiligo is one of the commonest pigmentary disorders characterized by destruction of melanocytes. AIM: To evaluate the efficacy of topical bimatoprost ophthalmic solution in stable facial vitiligo. MATERIAL AND METHODS: Eight cases of stable facial vitiligo were treated with bimatoprost 0.03% ophthalmic solution once daily for 12 weeks. Photographic records were taken at 2 weeks follow-up along with dermoscopic (Polarized, 10*) evaluation. RESULTS: Four cases had excellent repigmentation, two cases had partial repigmentation and two cases had poor response. CONCLUSION: Bimatoprost seems to be promising in treating stable vitiligo but large-scale studies are required. PMID- 29034589 TI - Involvement of local renin-angiotensin system in immunosuppression of tumor microenvironment. AB - To improve current cancer immunotherapies, strategies to modulate various immunosuppressive cells including myeloid derived suppressor cells (MDSC) which were shown to be negative factors in immune-checkpoint blockade therapy, need to be developed. In the present study, we evaluated the role of the local renin angiotensin system (RAS) in the tumor immune-microenvironment using murine models bearing tumor cell lines in which RAS was not involved in their proliferation and angiogenetic ability. Giving angiotensin II receptor blockers (ARB) to C57BL/6 mice bearing murine colon cancer cell line MC38 resulted in significant enhancement of tumor antigen gp70 specific T cells. ARB administration did not change the numbers of CD11b+ myeloid cells in tumors, but significantly reduced their T-cell inhibitory ability along with decreased production of various immunosuppressive factors including interleukin (IL)-6, IL-10, vascular endothelial growth factor (VEGF), and arginase by CD11b+ cells in tumors. ARB also decreased expression of immunosuppressive factors such as chemokine ligand 12 and nitric oxide synthase 2 in cancer-associated fibroblasts (CAF). Last, combination of ARB and anti-programmed death-ligand 1 (PD-L1) antibodies resulted in significant augmentation of anti-tumor effects in a CD8+ T cell-dependent way. These results showed that RAS is involved in the generation of an immunosuppressive tumor microenvironment caused by myeloid cells and fibroblasts, other than the previously shown proliferative and angiogenetic properties of cancer cells and macrophages, and that ARB can transform the immunosuppressive properties of MDSC and CAF and could be used in combination with PD-1/PD-L1 immune-checkpoint blockade therapy. PMID- 29034584 TI - Modern Therapeutic Approaches for Noninfectious Ocular Diseases Involving Inflammation. AB - Dry eye disease, age-related macular degeneration, and uveitis are ocular diseases that significantly affect the quality of life of millions of people each year. In these diseases, the action of chemokines, proinflammatory cytokines, and immune cells drives a local inflammatory response that results in ocular tissue damage. Multiple therapeutic strategies are developed to either address the symptoms or abate the underlying cause of these diseases. Herein, the challenges to deliver drugs to the relevant location in the eye for each of these diseases are reviewed along with current and innovative therapeutic approaches that attempt to restore homeostasis within the ocular microenvironment. PMID- 29034591 TI - Organ-On-A-Chip Platforms: A Convergence of Advanced Materials, Cells, and Microscale Technologies. AB - Significant advances in biomaterials, stem cell biology, and microscale technologies have enabled the fabrication of biologically relevant tissues and organs. Such tissues and organs, referred to as organ-on-a-chip (OOC) platforms, have emerged as a powerful tool in tissue analysis and disease modeling for biological and pharmacological applications. A variety of biomaterials are used in tissue fabrication providing multiple biological, structural, and mechanical cues in the regulation of cell behavior and tissue morphogenesis. Cells derived from humans enable the fabrication of personalized OOC platforms. Microscale technologies are specifically helpful in providing physiological microenvironments for tissues and organs. In this review, biomaterials, cells, and microscale technologies are described as essential components to construct OOC platforms. The latest developments in OOC platforms (e.g., liver, skeletal muscle, cardiac, cancer, lung, skin, bone, and brain) are then discussed as functional tools in simulating human physiology and metabolism. Future perspectives and major challenges in the development of OOC platforms toward accelerating clinical studies of drug discovery are finally highlighted. PMID- 29034592 TI - Optimizing outcomes after heart transplantation. PMID- 29034594 TI - Molecular ReI Cages: Structural and Luminescent Properties. AB - Versatile building block [{Re(CO)4 }3 (C3 N3 S3 )] (1 a; C3 N3 S3 =cyanurate trianion) reacts with linear dipyridyl ligands [i.e., pyrazine (pz), 4,4' bipyridine (bpy), 1,2-bis(4-pyridyl)ethylene (bpe), bis(4-pyridyl)acetylene (bpa), and 1,4-bis(pyridyl-4-ylethynyl)benzene (bpb)] and a tripyridyl ligand [1,3,5-tris(4-pyridylethynyl)benzene (tpb)] to afford a series of molecular cages [{Re(CO)3 }6 (L)3 (C3 N3 S3 )2 ] [L=pz (2), bpy (3), bpe (4), bpa (5), bpb (6)] and [{Re(CO)3 }9 (tpb)3 (C3 N3 S3 )3 ] (7) under solvothermal conditions. Various structural dimensions and motifs can be systematically tuned and obtained by using different dipyridyl and tripyridyl ligands in the reactions. The molecular cages of hexanuclear complexes 2-6 containing dipyridyl ligands feature interesting trigonal-prismatic structures with different dimensions. Furthermore, nonanuclear complex 7 has a novel triangular-star structure, and three benzene rings of tpb ligands form a triple-decker arrangement with significant pi???pi interactions having distances of 3.490(1) and 3.528(1) A. In addition, molecular cages 1-3 and 5-7 exhibit luminescence in the solid state, and their luminescent properties were also studied. PMID- 29034593 TI - Genetic diversity and comparison of diagnostic tests for characterization of foot and-mouth disease virus strains from Pakistan 2008-2012. AB - We report the laboratory analysis of 125 clinical samples from suspected cases of foot-and-mouth disease (FMD) in cattle and Asian buffalo collected in Pakistan between 2008 and 2012. Of these samples, 89 were found to contain viral RNA by rRT-PCR, of which 88 were also found to contain infectious FMD virus (FMDV) by virus isolation (VI), with strong correlation between these tests (kappa = 0.96). Samples that were VI-positive were serotyped by antigen detection ELISA (Ag ELISA) and VP1 sequence acquisition and analysis. Sequence data identified FMDV serotypes A (n = 13), O (n = 36) and Asia-1 (n = 41), including three samples from which both serotypes Asia-1 and O were detected. Serotype A viruses were classified within three different Iran-05 sublineages: HER-10, FAR-11 and ESF-10. All serotype Asia-1 were within Group VII (Sindh-08 lineage), in a genetic clade that differs from viruses isolated prior to 2010. All serotypes O were classified as PanAsia-2 within two different sublineages: ANT-10 and BAL-09. Using VP1 sequencing as the gold standard for serotype determination, the overall sensitivity of Ag-ELISA to correctly determine serotype was 74%, and serotype specific sensitivity was 8% for serotype A, 88% for Asia-1 and 89% for O. Serotype-specific specificity was 100% for serotype A, 93% for Asia-1 and 94% for O. Interestingly, 12 of 13 serotype A viruses were not detected by Ag-ELISA. This study confirms earlier accounts of regional genetic diversity of FMDV in Pakistan and highlights the importance of continued validation of diagnostic tests for rapidly evolving pathogens such as FMDV. PMID- 29034595 TI - Adamantinoma-like Ewing sarcoma of the parotid gland: Cytopathologic findings and differential diagnosis. AB - Adamantinoma-like Ewing sarcoma (AES) is a rare variant of Ewing sarcoma family of tumors (EFTs), primarily affecting bone and soft tissue. AES has mixed features of Ewing sarcoma (ES)/primitive neuroectodermal tumor (PNET) and adamantinoma with a complex immunoprofile and EWSR1 gene rearrangements. Herein, we report a 72-year-old male who presented with left parotid mass, right neck mass and thyroid nodules. Fine needle aspiration of the left parotid mass displayed nests of monotonous epithelioid cells with basaloid features in a background of small round blue cells and lymphocytes. AES can involve head and neck region and is characterized by groups of primitive small round blue cells admixed with groups of epithelioid cells with amphophilic cytoplasm and focal squamous differentiation. The proportion of these components can be variable, creating diagnostic challenges, particularly in unusual anatomic sites such as the parotid gland. However, when additional material is available, CD99 and/or FLI1 immunostains need to be included for diagnostic confirmation. PMID- 29034596 TI - Regulation of glucagon-like peptide-1 sensitivity by gut microbiota dysbiosis. AB - Gut microbiota dysbiosis reduces expression of GLP-1 receptor (GLP-1R) and neuronal nitric oxide synthase (nNOS) in the enteric nervous system and hampers GLP-1-induced nitric oxide (NO) production through a pattern recognition receptor (PRR)-dependent mechanism, hence preventing activation of the gut-brain-periphery axis for control of insulin secretion and gastric emptying. PMID- 29034597 TI - Effect of composite type and placement technique on cuspal strain. AB - OBJECTIVE: To compare the cuspal strain in Class II restorations made with bulk fill and conventional composite resins. MATERIALS AND METHODS: Fifty extracted maxillary premolars were mounted into phenolic rings and divided into five groups (n = 10). Specimens received standardized MOD preparations. A two-step self-etch adhesive was applied and the preparations were restored using a custom matrix as follows: Filtek Supreme Ultra in eight 2-mm increments (FSUI); Filtek Supreme Ultra in bulk (FSUB); SonicFill in bulk (SF); SureFil SDR flow in bulk, covered with a 2-mm occlusal layer of Filtek Supreme Ultra (SDR/FSU); Tetric EvoCeram Bulk Fill in bulk (TEBF). Strain gages bonded to the buccal and lingual cusps recorded cuspal strain during restorations. End strain values were determined and data were subjected to Kruskal-Wallis testing, followed by one-way ANOVA and Tukey's post hoc test. RESULTS: Combined strain values and standard deviations (in uE) were: FSUI: 723 +/- 102.8, FSUB: 929.2 +/- 571.9, SF: 519.1 +/- 80.2, SDR FSU: 497.4 +/- 67.6 and TEBF: 604.5 +/- 127.1. A significant difference was found between group FSUI and groups SF, SDR-FSU, and TEBF. Group FSUB showed significantly higher mean strain and greater standard deviation than all other groups due to cuspal fractures, and was thus excluded from the statistical analysis. CONCLUSIONS: The tested bulk-fill composite resins exerted less strain onto tooth structure than the incrementally placed conventional composite resin, although the magnitude of generated strain was product-dependent. Bulk-filling with conventional composite resins is contraindicated. CLINICAL SIGNIFICANCE: Bulk-fill composite resins exerted less strain onto adjacent tooth structure than a traditional composite, even when that composite is was placed incrementally. Bulk-filling with traditional composite resins is unpredictable and contraindicated. PMID- 29034598 TI - A prospective randomized controlled trial of the two-window technique without membrane versus the solo-window technique with membrane over the osteotomy window for maxillary sinus augmentation. AB - BACKGROUND: Maturation of the grafted volume after lateral sinus elevation is crucial for the long-term survival of dental implants. PURPOSE: To compare endo sinus histomorphometric bone formation between the solo- and two-window maxillary sinus augmentation techniques with or without membrane coverage for the rehabilitation of multiple missing posterior teeth. MATERIALS AND METHODS: Patients with severely atrophic posterior maxillae were randomized to receive lateral sinus floor elevation via the solo-window technique with membrane coverage (Control Group) or the two-window technique without coverage (Test Group). Six months after surgery, bone core specimens harvested from the lateral aspect were histomorphometrically analyzed. RESULTS: Ten patients in each group underwent 21 maxillary sinus augmentations. Histomorphometric analysis revealed mean newly formed bone values of 26.08 +/- 16.23% and 27.14 +/- 18.11%, mean connective tissue values of 59.34 +/- 12.42% and 50.03 +/- 17.13%, and mean residual graft material values of 14.6 +/- 14.56% and 22.78 +/- 10.83% in the Test and Control Groups, respectively, with no significant differences. CONCLUSIONS: The two-window technique obtained comparative maturation of the grafted volume even without membrane coverage, and is a viable alternative for the rehabilitation of severely atrophic posterior maxillae with multiple missing posterior teeth. PMID- 29034599 TI - Process and impact of dialectical behaviour therapy: A systematic review of perceptions of clients with a diagnosis of borderline personality disorder. AB - PURPOSE: To identify, appraise, and synthesize findings from qualitative studies of individuals diagnosed with borderline personality disorder who have experienced dialectical behaviour therapy, to gain further understanding of their perceptions of the process and impact of therapy. METHODS: We conducted a comprehensive systematic search of the literature from several online databases, and appraised them using an adapted version of the Critical Appraisal Skills Programme tool. A meta-ethnographic approach was used to synthesize the data. RESULTS: Seven studies met the criteria to be included and their quality subsequently appraised. Four main themes were identified through the synthesis process: life before DBT; the relationships that support change; developing self efficacy; and a shift in perspectives. CONCLUSIONS: The findings of the synthesis highlight the importance of a number of key factors in the process of DBT, and the impact that the therapy has both on day-to-day life and on individuals' identity. PRACTITIONER POINTS: Existing outcome measures may not capture the complexity and magnitude of impact of DBT on individuals with BPD. Exploring first-hand accounts of individuals undertaking DBT can offer unique insight into the processes of therapy. PMID- 29034600 TI - No Adverse Programming by Post-Weaning Dietary Fructose of Body Weight, Adiposity, Glucose Tolerance, or Metabolic Flexibility. AB - SCOPE: Metabolic programming can occur not only in the perinatal period, but also post-weaning. This study aims to assess whether fructose, in comparison to glucose, in the post-weaning diet programs body weight, adiposity, glucose tolerance, metabolic flexibility, and health at adult age. METHODS AND RESULTS: Three-week-old male and female C57BL6/JRccHsd mice are given an intervention diet with 32 energy percent (en%) glucose or fructose for only 3 weeks. Next, all animals are switched to the same 40 en% high fat diet for 9 weeks. Neither body weight nor adiposity differs significantly between the animals fed with glucose or fructose diets at any point during the study in both sexes. Glucose tolerance in adulthood is not affected by the post-weaning diet, nor are activity, energy expenditure, and metabolic flexibility, as measured by indirect calorimetry. At the end of the study, only in females fasting serum insulin levels and HOMA-IR index are lower in post-weaning fructose versus glucose diet (p = 0.02), without differences in pancreatic beta-cell mass. CONCLUSIONS: Our present findings indicate no adverse programming of body weight, adiposity, glucose tolerance, and metabolic flexibility by dietary (solid) fructose in comparison to glucose in the post-weaning diet in mice. PMID- 29034601 TI - Contact Active Antimicrobial Coatings Prepared by Polymer Blending. AB - Herein, contact active antimicrobial films are prepared by simply blending cationic amphiphilic block copolymers with commercial polystyrene (PS). The copolymers are prepared by combining atom transfer radical polymerization and "click chemistry." A variety of copolymers are synthesized, and composed of a PS segment and an antimicrobial block bearing flexible side chain with thiazole and triazole groups, 4-(1-(2-(4-methylthiazol-5-yl)ethyl)-1H-1,2,3-triazol-4-yl) butyl methacrylate (TTBM). The length of the TTBM block is varied as well as the alkylating agent. Different films are prepared from N,N-dimethylformamide solution, containing variable PS-b-PTTBM/PS ratio: from 0 to 100 wt%. Remarkably, the blend films, especially those with 30 and 50 wt% of copolymers, exhibit excellent antimicrobial activities against Gram-positive, Gram-negative bacteria and fungi, even higher than films prepared exclusively from the cationic copolymers. Blends composed of 50 wt% of the copolymers present a more than 99.999% killing efficiency against the studied microorganisms. The better activity found in blends can be due to the higher roughness, which increases the surface area and consequently the contact with the microorganisms. These results demonstrate that the use of blends implies a reduction of the content of antimicrobial agent and also enhances the antimicrobial activity, providing new insights for the better designing of antimicrobial coatings. PMID- 29034602 TI - Gender and arch effects on the use of non-opioid analgesics for post endodontic pain reduction. AB - This study aimed to evaluate the secondary outcomes of gender and arch and their impact on pain reduction following initial endodontic therapy. 185 medications, including placebo were prepared, and 170 participants completed the trial. Group 1, received a single dose of Paracetamol alone (G-1), Group 2 received combined Ibuprofen/Paracetamol (G-2). Group 3 received combined Mefenamic acid/Paracetamol (G-3), group 4 received combined Diclofenac K/Paracetamol (G-4) and Group 5 received a placebo (G-5). There were no statistically significant differences in pain reduction between males and females whilst there were statistically significant differences between them and the placebo group. All combinations of Paracetamol performed better in pain reduction than the placebo among females, while there were no statistically significant differences among males. In conclusion, there were no differences in pain reduction between males and females, and arch for the tested analgesics taken immediately following initial endodontic therapy in teeth with irreversible pulpitis. PMID- 29034605 TI - Useful aspects of diagnosis of imprint cytology in intraoperative consultation of ovarian tumors: comparison between imprint cytology and frozen sections. AB - BACKGROUND: In the intraoperative consultation of ovarian tumors, the histological diagnosis of frozen sections (FS) of large tumors is frequently difficult because of the limited number of tumor samples. The application of imprint cytology (IC), in which samples are obtained from wide areas of the tumors, is useful for intraoperative consultation. However, the useful aspects of IC have not been clearly defined. The present study is a detailed comparison of IC and FS that clearly defines the useful aspects of IC. METHODS: Fifty-five cases of ovarian tumors that were examined using both IC and FS were evaluated. The histological diagnoses consisted of benign (16), borderline (6), and malignancy (33). All of the malignant tumors consisted of various types of carcinoma. RESULTS: Benignity and malignancy were accurately diagnosed by both IC and FS. In the borderline group, the diagnostic accuracy of IC was very low (1/6: 16.6%) compared with FS (4/6: 66.6%). The diagnostic accuracy including benign, borderline, and malignant groups was 90.9% (50/55) for IC and 96.3% (53/55) for FS. Concerning the diagnosis of the types of carcinoma, the overall diagnostic accuracy of IC (25/31: 80.6%) was greater than that of FS (21/31: 67.7%), especially for the diagnosis of clear cell carcinoma (IC, 100%; FS, 80%) and mixed carcinoma (IC, 66.6%; FS, 16.6%). CONCLUSION: The useful aspects of IC in the intraoperative consultation are the diagnosis of benignity or malignancy and the accuracy of diagnosing clear cell carcinoma and mixed carcinoma. PMID- 29034606 TI - Do Mid-Crown Enamel Formation Front Angles Reflect Factors Linked to the Pace of Primate Growth and Development? AB - Enamel formation front (EFF) angles represent the leading edge of enamel matrix secretion at particular points in time. These angles are influenced by rates of enamel extension (the rates at which tooth crowns grow in height), rates of enamel matrix secretion and the angles that prisms make with the enamel-dentine junction. Previous research suggests, but has not yet established, that these angles reflect aspects of primate biology related to their pace of growth and development, most notably brain and body size. The present study tested this possibility on histological sections using phylogenetically-controlled and Bonferroni-corrected analyses spanning a broad taxonomic range. Ten species were represented in the analysis of anterior teeth; 17 in the analysis of posterior (postcanine) teeth (with varying sample sizes). Also, tested was the relationship of EFF angles to striae of Retzius periodicity (long period growth rhythms in enamel) and degree of folivory, as both factors are related to primate developmental rates. Finally, several analyses were conducted to investigate whether tooth size (operationalized as EDJ length) might mediate these relationships. Central results are as follows: (1) Relationships between EFF angles and brain weight (anterior teeth) and between EFF angles and body mass (anterior and posterior teeth) are statistically significant and (2) Mid-crown EFF angles are not statistically significantly related to EDJ lengths. These results suggest that tooth size does not mediate relationships between EFF angles and brain weight/body mass and are discussed with respect to underlying enamel growth variables (especially rates of enamel extension and secretion). Anat Rec, 2017. (c) 2017 Wiley Periodicals, Inc. Anat Rec, 301:125-139, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29034607 TI - Complete loss of insulin secretion capacity in type 1A diabetes patients during long-term follow up. AB - AIM/INTRODUCTION: Patients with type 1 diabetes are classified into three subtypes in Japan: acute onset, fulminant and slowly progressive. Acute-onset type 1 diabetes would be equivalent to type 1A diabetes, the typical type 1 diabetes in Western countries. The insulin secretion capacity in Japanese patients with long-standing type 1A diabetes is unclear. The aim of the present study was to clarify the course of endogenous insulin secretion during long-term follow up and the factors associated with residual insulin secretion in patients with acute-onset type 1 diabetes (autoimmune). MATERIALS AND METHODS: We retrospectively investigated endogenous insulin secretion capacity in 71 patients who fulfilled the diagnostic criteria for acute-onset type 1 diabetes (autoimmune) in Japan. To assess the residual insulin secretion capacity, we evaluated randomly measured C-peptide levels and the results of glucagon stimulation test in 71 patients. RESULTS: In the first year of disease, the child and adolescent-onset patients had significantly more in residual insulin secretion than the adult-onset patients (34 patients in total). C-peptide levels declined more rapidly in patients whose age of onset was <=18 years than in patients whose age of onset was >=19 years. Endogenous insulin secretion capacity stimulated by glucagon was completely lost in almost all patients at >15 years after onset (61 patients in total). CONCLUSIONS: Most patients with acute-onset type 1 diabetes (autoimmune) completely lose their endogenous insulin secretion capacity during the disease duration in Japan. Age of onset might affect the course of insulin secretion. PMID- 29034609 TI - Mental health in rural Australia. PMID- 29034610 TI - Private health insurance - a good deal in rural and remote Australia? PMID- 29034611 TI - Epidemiology and spatio-temporal analysis of West Nile virus in horses in Spain between 2010 and 2016. AB - During the last decade, West Nile virus (WNV) outbreaks have increased sharply in both horses and human in Europe. The aims of this study were to evaluate characteristics and spatio-temporal distribution of WNV outbreaks in horses in Spain between 2010 and 2016 in order to identify the environmental variables most associated with WNV occurrence and to generate high-resolution WNV suitability maps to inform risk-based surveillance strategies in this country. Between August 2010 and November 2016, a total of 403 WNV suspected cases were investigated, of which, 177 (43.9%) were laboratory confirmed. Mean values of morbidity, mortality and case fatality rates were 7.5%, 1.6% and 21.2%, respectively. The most common clinical symptoms were as follows: tiredness/apathy, recumbency, muscular tremor, ataxia, incoordination and hyperaesthesia. The outbreaks confirmed during the last 7 years, with detection of WNV RNA lineage 1 in 2010, 2012, 2013, 2015 and 2016, suggest an endemic circulation of the virus in Spain. The spatio-temporal distribution of WNV outbreaks in Spain was not homogeneous, as most of them (92.7%) were concentrated in western part of Andalusia (southern Spain) and significant clusters were detected in this region in two non-consecutive years. These findings were supported by the results of the space-time scan statistics permutation model. A presence-only MaxEnt ecological niche model was used to generate a suitability map for WNV occurrence in Andalusia. The most important predictors selected by the Ecological Niche Modeling were as follows: mean annual temperature (49.5% contribution), presence of Culex pipiens (19.5% contribution), mean annual precipitation (16.1% contribution) and distance to Ramsar wetlands (14.9% contribution). Our results constitute an important step for understanding WNV emergence and spread in Spain and will provide valuable information for the development of more cost-effective surveillance and control programmes and improve the protection of horse and human populations in WNV-endemic areas. PMID- 29034612 TI - Variability index of tacrolimus serum levels in pediatric liver transplant recipients younger than 12 years: Non-adherence or risk of non-adherence? AB - MLVI has been used to assess adherence. To determine the MLVI in children <12 years of age at transplantation and to identify demographic correlates and consequences for the graft. This is a retrospective study of 50 outpatients (4.0 +/- 3.5 years), at least 13-month post-liver transplantation. The outcomes evaluated were MLVI, ALT > 60 IU/L, ACR, death, and graft loss. We analyzed demographic and socioeconomic characteristics, indication for transplantation, and type of donor. Student's t test and the chi-square test were used. Statistical significance was set at P <= .05. Seventy-two percent were infants or preschoolers, 62% biliary atresia. Seventy-four percent of the mothers had middle school education, and 54% of the families had an income <=3632.4 US$/y. Twenty two (44%) patients had a MLVI >= 2 SD; this was more prevalent in families with higher incomes (P = .045). ALT levels > 60 IU/L were more common in MLVI >= 2 SD group (P = .035). ACR episodes were similar between groups (P = 1.000). No patient died or lost the graft. MLVI >= 2 SD may be an indicator of the risk of medication non-adherence. PMID- 29034613 TI - Massive ascites and the heterozygous alpha 1 antitrypsin (alpha1 AT) living related donor liver in the homozygous child. AB - The following is a short report on the use of a heterozygous (PiMZ) alpha 1 antitrypsin (alpha1AT) living related donor liver in a homozygous (PiZ) child that was complicated by massive ascites early after transplant. This clinical report is then followed by a brief summary of present knowledge on the alpha1 AT protein and management of massive ascites in the pediatric liver transplant recipient. PMID- 29034608 TI - Nanoparticle-Based Therapeutics for Brain Injury. AB - Brain injuries affect a large patient population with major physical and emotional suffering for patients and their relatives; at a significant cost to the society. Effective diagnostic and therapeutic options available for brain injuries are limited by the complex brain injury pathology involving blood-brain barrier (BBB). Brain injuries, including ischemic stroke and brain trauma, initiate BBB opening for a short period of time, which is followed by a second reopening for an extended time. The leaky BBB and/or the alterations in the receptor expression on BBB may provide opportunities for therapeutic delivery via nanoparticles (NPs). The approaches for therapeutic interventions via NP delivery are aimed at salvaging the pericontusional/penumbra area for possible neuroprotection and neurovascular unit preservation. The focus of this progress report is to provide a survey of NP strategies employed in cerebral ischemia and brain trauma and finally provide insights for improved NP-based diagnostic/treatment approaches. PMID- 29034614 TI - Selenium supplementation during in vitro maturation enhances meiosis and developmental capacity of yak oocytes. AB - The objectives of the present study were to investigate the effects of selenium (Se) supplementation during in vitro maturation (IVM) on the developmental capacity of yak (Bos grunniens) oocytes. Nuclear maturation, DNA integrity, glutathione peroxidase (GSH-Px) activity, subsequent embryonic development, and gene expression after in vitro fertilization (IVF) were evaluated. The Se concentrations in yak plasma and follicular fluid were 0.142 and 0.069 MUg/mL, respectively. The DNA damage in cumulus cells decreased significantly with 2 and 4 MUg/mL supplementation of sodium selenite to IVM medium (P < 0.05). Total GSH Px activity in oocytes increased in all Se supplementation groups, and the 2 and 4 MUg/mL groups were significantly higher than the control group (0 MUg/mL). However, the cleavage rate was not significantly different after Se supplementation (P > 0.05). The IVF blastocyst formation rates of 0, 1 and 4 MUg/mL sodium selenite groups were 47.7%, 51.2% and 58.9%, respectively. The 2 MUg/mL sodium selenite group had the highest blastocyst formation rate (60.5%). Gene expression analysis revealed that the quantity of transcripts associated with selenoprotein and protein synthesis were high in the 2 and 4 MUg/mL groups. In conclusion, both GSH-Px activity of oocytes and DNA integrity of cumulus cells significantly increased with supplemental Se during oocyte IVM. Considering that embryonic development is responsive to Se supplementation, we inferred that appropriate Se concentrations during IVM were beneficial for yak oocyte maturation and subsequent development. PMID- 29034615 TI - Effects of an exercise model based on functional circuits in an older population with different levels of social participation. AB - AIM: To investigate whether being part of a community organization interfered with older adults' overall functionality. The magnitude of responses to a community exercise program based on functional circuits in socially active and socially non-active older adults was also investigated. METHODS: A total of 200 older adults aged >=60 years from Requinoa, Chile, participated in the study. Participants were separated into two groups according to the level of social participation: socially active (SA) and socially non-active (SNA). During an evaluation, data regarding the presence of comorbidities (Charlson Comorbidity Index), disability level (Modified Health Assessment Questionnaire), dynamic balance (Timed Up and Go test), muscle force (handgrip dynamometry) and sociodemographic conditions were collected. Participants followed an exercise program consisting of a functional exercise circuit including balance, resistance and aerobic exercises, twice a week, for 12 weeks. RESULTS: Both the Charlson Comorbidity Index and disability were higher in SNA compared with SA participants on inclusion. Both groups improved disability (Delta-0.25 patients [-0.5 - 0.0625 patients] for SNA and (Delta-0.125 patients [-0.5-0 patients] for SA) and balance (Delta-2 s [-3-0 s] for SNA and (Delta-1 s [-3-0 s] for SA) after training (P < 0.05 for all). Changes from baseline were statistically higher in the SNA group. Handgrip force improved only in participants in the SNA group (Delta1.7 kg [0.6-2.8 kg], P = 0.0001). No differences, however, were observed between the magnitude of improvements of handgrip between groups. CONCLUSIONS: Although socially non-active older adults had more comorbidity and disability than their socially active counterparts, they showed a higher response to a community exercise program. Geriatr Gerontol Int 2018; 18: 216-223. PMID- 29034616 TI - Molecular survey and genetic characterization of Anaplasma centrale, A. marginale and A. bovis in cattle from Algeria. AB - Bovine anaplasmosis could be caused by several Anaplasma species. The causative agents are transmitted by ticks and haematophagous arthropods with a high impact on both human and animal health. This study was conducted to estimate the infection rate and to characterize Anaplasma spp. in cattle from Algeria. A molecular survey was performed in Setif district (Northeast Algeria) where a total number of 180 cattle blood samples were collected and tested for the presence of Anaplasma spp. by PCR. Positive samples were genetically characterized based on the 16S rRNA and msp4 genes. PCRs revealed that the infection rates of Anaplasma spp., Anaplasma centrale, Anaplasma marginale and Anaplasma bovis were 42.2%; 39.4%; 11.1% and 4.4%, respectively. All tested animals were negative for A. phagocytophilum. Co-infection occurred in 10% (18/180) of the tested animals, and the most common co-infection pattern was an association between A. centrale and A. marginale (5.5%). Five cattle (2.7%) were co-infected by the three Anaplasma species. Holstein animals (58.1%) were more infected by A. centrale than the other breeds (p = .01). The molecular prevalence of A. centrale was significantly higher in males (54.2%) than in females (34.1%) (p = .001). A. marginale msp4 genetic analysis indicated a high sequence diversity of Algerian strains, suggesting the importation of live cattle from different origins. Phylogenetic analysis of the 16S rRNA gene of A. bovis and A. centrale revealed a low degree of genetic diversity. Our study suggests that different species of Anaplasma are simultaneously present in the Algerian cattle. To the best of our knowledge, this is the first molecular study and genetic characterization of Anaplasma spp. in Algerian cattle. PMID- 29034618 TI - Altered Electroencephalography Spectral Profiles in Rats with Different Patterns of Experimental Brain Dysplasia. AB - BACKGROUND: Malformations of cortical development, such as focal cortical dysplasia, are commonly associated with intractable epilepsy. Multiple animal models were created in attempts to recapitulate features of human malformations of cortical development. These manipulations give rise to various focal or diffuse anatomical abnormalities, accompanied by altered susceptibility to epileptic seizures. Both in humans and in models of dysplasia, the question of timing of the initiating insult is important. METHODS: Here, we used a rat model of cerebral dysplasia elicited by prenatal irradiation at gestational days (E) 13, 15, 17, or 19. Previous results suggest these animals are characterized by different patterns of dysplasia as well as different reactivity to seizurogenic stimuli in several seizure models. Rats were implanted with telemetric electroencephalography (EEG) transmitters. We compared EEG data from freely moving animals with anatomical observations obtained with MRI, as well as Western blotting and immunohistochemistry. RESULTS: We performed spectral analyses of EEG signal, revealing differential regulation of specific bands (including delta, theta, alpha-beta, gamma) in animals with different patterns of dysplasia. Relative contribution of low-frequency activity in delta band is the lowest in E15 and the highest in E19. Conversely, higher frequency bands, corresponding to alpha/beta and gamma components, are reduced in E15 versus E19. This is accompanied by altered expression of glial markers in the E19 group. CONCLUSION: To our knowledge, this constitutes the first quantitative description of power spectral properties in this experimental model, providing insight into mechanisms underlying the anatomical and electrophysiological abnormalities associated with brain dysplasia of different types. Birth Defects Research, 110:303-316, 2018. (c) 2017 Wiley Periodicals, Inc. PMID- 29034617 TI - Isolation and characterization of avian influenza viruses from raw poultry products illegally imported to Japan by international flight passengers. AB - The transportation of poultry and related products for international trade contributes to transboundary pathogen spread and disease outbreaks worldwide. To prevent pathogen incursion through poultry products, many countries have regulations about animal health and poultry product quarantine. However, in Japan, animal products have been illegally introduced into the country in baggage and confiscated at the airport. Lately, the number of illegally imported poultry and the incursion risk of transboundary pathogens through poultry products have been increasing. In this study, we isolated avian influenza viruses (AIVs) from raw poultry products illegally imported to Japan by international passengers. Highly (H5N1 and H5N6) and low (H9N2 and H1N2) pathogenic AIVs were isolated from raw chicken and duck products carried by flight passengers. H5 and H9 isolates were phylogenetically closely related to viruses isolated from poultry in China, and haemagglutinin genes of H5N1 and H5N6 isolates belonged to clades 2.3.2.1c and 2.3.4.4, respectively. Experimental infections of H5 and H9 isolates in chickens and ducks demonstrated pathogenicity and tissue tropism to skeletal muscles. To prevent virus incursion by poultry products, it is important to encourage the phased cleaning based on the disease control and eradication and promote the reduction in contamination risk in animal products. PMID- 29034619 TI - [Induction and regulation of cellulase expression in filamentous fungi: a review]. AB - Production of bioenergy and bio-based chemicals by using fermentable sugars released from low-cost renewable lignocellulosic biomass has received great attention. Efficient cellulolytic enzymes are crucial for lignocellulose bioconversion, but high cellulase production cost is limiting the bioconversion efficiency of cellulosic biomass and industrial applications of lignocellulose biorefinery. Studies on induction and regulation of cellulase in filamentous fungi will help to further develop superior fungal strains for efficient cellulase production and reduce cellulase production cost. With the advances in high-throughput sequencing and gene manipulation technology using fungal strains, an in-depth understanding of cellulase induction and regulation mechanisms of enzyme expression has been achieved. We reviewed recent progresses in the induction and regulation of cellulase expression in several model filamentous fungi, emphasizing sugar transporters, transcription factors and chromatin remodeling. Future prospects in application of artificial zinc finger proteins for cellulase induction and regulation in filamentous fungi were discussed. PMID- 29034620 TI - [Progress in chemicals production by microbial consortia]. AB - Using cheap biomass resources is a hotspot of research on industrial biotechnology. It is difficult for traditional fermentations with single strain to treat so complex components and more impurities, which becomes the key problem in industrialization. In this review, some existing industrial bioprocesses involving microbial consortia were described. Comparison of 1,3-propanediol production by microbial consortia and pure cultures were then introduced and the relationship between cells in microbial consortia were summarized. Finally, the perspective was also addressed to design and apply microbial consortia in the future. PMID- 29034621 TI - [Circular RNAs and their roles in tumorigenesis]. AB - Recently, with the development of RNA research techniques, a wide variety of circular RNAs (circRNAs) have been discovered and some of them are confirmed to have crucial biological functions. CircRNAs arise from exons (i.e. exonic circRNAs) or introns (i.e. intronic circRNAs). Acting as microRNA sponges or combining with proteins, circRNAs participate in the regulation of gene expression and influence the activity of some proteins. In addition, some circRNAs even encode proteins. More importantly, several circRNAs play a key role in the occurrence and progression of some tumors, including stomach, liver, colon, breast, cervical, and ovarian cancers. Therefore, circRNAs may be a novel type of diagnostic marker and therapeutic target of cancers. PMID- 29034622 TI - [Establishment of chemiluminescent enzyme immunoassay for detecting antibodies against foot-and-mouth disease virus serotype O in swine]. AB - Recombinant structural protein VP1 of foot-and-mouth disease virus serotype O was expressed in Escherichia coli and then purified using Nickel affinity chromatography. A chemiluminescent enzyme immunoassay (CLEIA) method was established using the purified recombinant protein as coating antigen to detect antibody of foot-and-mouth disease virus serotype O in swine. The specificity of VP1-CLEIA method is 100%. The coefficients of variation in the plate and between plates are 1.10%-6.70% and 0.66%-4.80%, respectively. Comparing with the commercial indirect ELISA kit or liquid phase block ELISA kit, the calculated coincidence rate is 93.50% or 94.00%. The high specificity and stability suggested this detection method can be used to monitor the antibody level of foot and-mouth disease virus serotype O in swine. PMID- 29034623 TI - [Characterization and application of a monoclonal antibody against light chain of goose immunoglobulin]. AB - Immunoglobulin (Ig) is considered a part of the innate immune system and cooperates with the complementary system as the first line of defense. In this study, a monoclonal antibody (MAb) direct against the light chain of goose Ig (GoIgCL) was generated, characterized and identified in various immunoassays to detect goose Ig. An immunoaffinity chromatography column prepared with this MAb was used to separate the goose Ig from sera. After being conjugated with horseradish peroxidase (HRP), this MAb was used as the secondary antibody to evaluate the goose-specific antibody. In addition, this MAb distinguished and localized the SIg+ lymphocytes from peripheral blood lymphocytes. MAb against GoIgCL may be good candidate to detect or purify goose Ig under various conditions and as a powerful tool for humoral immunity research on goose. PMID- 29034624 TI - [Effects of overexpression of carboxylation pathway genes and inactivation of malic enzymes on malic acid production in Escherichia coli]. AB - Malic acid is a dicarboxylic acid that is widely used in food, pharmaceutical and chemical industries. We studied the effects of overexpression of carboxylation pathway genes and inactivation of malic enzymes on the aerobic production of malic acid. Over expression of phosphoenolpyruvate (PEP) carboxylase (ppc) generated strain E21, which increased malic acid production from 0.57 g/L to 3.83 g/L. Then pyc gene from Coryenbacterium glutamicus and pck gene from Actinobacillus succinogenes were overexpressed in E21 separately. The resulting strains E21 (pTrcpyc) and E21 (pTrc-A-pck) produced 6.04 and 5.01 g/L malate with a yield of 0.79 and 0.65 mol/mol glucose, respectively. Deleting two malic enzymes (encoded by maeA and maeB) also led to an increase of 36% in malic acid production with a production of 5.21 g/L. However, the combination of malic enzymes deletion and pyc overexpression could not further increase the yield of malic acid. After optimization of fermentation conditions, strain E21 (pTrcpyc) produced 12.45 g/L malic acid with a yield of 0.84 mol/mol which is 63.2% of the theoretical yield. PMID- 29034625 TI - [Pilot-scale purification of lipopeptide from marine-derived Bacillus marinus]. AB - This research was aimed at establishing the pilot-scale purification technology of lipopeptide from marine-derived Bacillus marinus. We studied lipopeptide surfactivity interferences on scale-up unit technologies including acid precipitation, methanol extraction, solvent precipitation, salting out, extraction, silica gel column chromatography and HZ806 macroporous absorption resin column chromatography. Then, the unit technologies were combined in a certain order, to remove the impurities gradually, and to gain purified lipopeptide finally, with high recovery rate throughout the whole process. The novel pilot-scale purification technology could effectively isolate and purify lipopeptide with 87.51% to 100% purity in hectograms from 1 ton of Bacillus marinus B-9987 fermentation broth with more than 81.73% recovery rate. The first practical hectogram production of highly purified lipopeptide derived from Bacillus marinus was achieved. With this new purification method, using complex media became possible in fermentation process to reduce the fermentation cost and scale-up the purification for lipopeptide production. For practicability and economy, foaming problem resulting from massive water evaporation was avoided in this technology. PMID- 29034626 TI - [Sequence analysis and expression patterns of histone H2A variants in Phytophthora infestans]. AB - In eukaryotic cells, DNA is packaged inside the nucleus together with histones to form nucleosomes. Each histone molecule contains two of each core histone subunits H2A, H2B, H3 and H4. Among core histones, the H2A family is of great interest due to the high diversity of specialized variants. These variants have shown important role in critical cellular processes. Epigenetic mechanism in oomycetes is barely known. Phytophthora infestans is a severe pathogen and a model species in oomycetes. In this study, we studied the sequence and expression pattern of H2A variants of P. infestans through genome search, sequences alignment, phylogenetic analysis and realtime qPCR detection. P. infestans contains conserved genes encoding histone variants H2A.X.1, H2A.X.2 and H2A.Z, and these genes have specific expression patterns during development and infection stages. Our datasets provide useful inputs to help explore the epigenetic mechanisms of oomycetes. PMID- 29034627 TI - [Detection of transgenic components in animal feeds on Shanxi markets]. AB - To assess the presence of genetically modified (GM) maize and soybean in a range of commercialized feed in Shanxi province of China in 2015, improved hexadecyltrimethy ammonium bromide (CTAB) method was used to extract DNA. The screening of packed feeds was carried out by qualitative PCR. Then positive feeds were unpacked and detected by the CaMV 35S promoter, NOS terminator, zSSIIb, Lectin and CryIA (b) genes. The identified maize and soybean events were confirmed by event-specific MON810 and GTS40-3-2. Results showed that 83.3% of the feeds was tested positive for GMOs, in which positive rates of maize, soybean, pig and layer feeds were 6.67%, 100%, 93.3% and 73.3%, respectively. The results of real-time PCR were consistent with qualitative PCR. These results indicated that commercialized GM feed had a wide positive product scope in Shanxi province of China. Further studies are necessary to study effects of feeding livestock and poultry with feed containing GM ingredients on animals and their products. PMID- 29034629 TI - [Comparison of cellular localization of NS1 from different subtypes of influenza A virus]. AB - The non-structural (NS1) protein is a multifunctional molecular protein encoded by influenza A virus genome. NS1 plays an important role in inhibition of host immune responses. In order to assess the cellular localization of NS1 in different influenza A virus subtypes, we performed the immunofluorescence assay to observe the cellular location of NS1 after infection with influenza A virus WSN (H1N1), PR8 (H1N1), CA04 (H1N1), SD (H9N2) and AH01 (H7N9) in A549 cells and MDCK cells respectively. According to the results, NS1-WSN and NS1-PR8 accumulated mainly in cytoplasm at 24 h post infection, while the NS1-CA04 and NS1-SD appeared major in the nucleus. We also observed localization of NS1 by transfected 293T cells with plasmids which encoding the full-length NS1 from WSN, SD and AH01. The key sites which might determine the different cellular localization of NS1 were chosen by sequence alignment, and seven residues which were different between WSN, PR8 and CA04, SD and AH01 were finally focused. However, we found that single mutation of these residues could not alter the localization of NS1. The data indicated that the difference of location might not be caused by substitution of a single site, which contributes to our understanding of the diverse regulation of host factors during different subtypes of influenza virus infection. PMID- 29034628 TI - [Screening of full human anthrax lethal factor neutralizing antibody in transgenic mice]. AB - Anthrax is a highly lethal infectious disease caused by the spore-forming bacterium Bacillus anthracis. The major virulence factor of B. anthracis consists of protective antigen (PA), lethal factor (LF) and edema factor (EF). PA binds with LF to form lethal toxin (LT), and PA binds with EF to form edema toxin (ET). Antibiotics is hard to work in advanced anthrax infections, because injuries and deaths of the infected are mainly caused by lethal toxin (LT). Thus, the therapeutic neutralizing antibody is the most effective treatment of anthrax. Currently most of the anthrax toxin antibodies are monoclonal antibodies (MAbs) for PA and US FDA has approved ABTHRAX humanized PA monoclonal antibody for the treatment of inhalational anthrax. Once B. anthracis was artificially reconstructed or PA had mutations within recognized neutralization epitopes, anti PA MAbs would no longer be effective. Therefore, anti-LF MAbs is an important supplement for anthrax treatment. Most of the anti-LF antibodies are murine or chimeric antibodies. By contrast, fully human MAbs can avoid the high immunogenicity of murine antibodies. First, we used LF to immunize the transgenic mice and used fluorescent cell sorting to get antigen-specific memory B cells from transgenic mice spleen lymphocytes. By single cell PCR method, we quickly found two strains of anti-LF MAbs with binding activity, 1D7 and 2B9. Transiently transfected Expi 293F cells to obtain MAbs protein after purification. Both 1D7 and 2B9 efficiently neutralized LT in vitro, and had good synergistic effect when mixed with anti-PA MAbs. In summary, combining the advantages of transgenic mice, fluorescent cell sorting and single-cell PCR methods, this study shows new ideas and methods for the rapid screening of fully human monoclonal antibodies. PMID- 29034631 TI - [Filamentous fungal sesterterpenoids and their synthases]. AB - Although the number of sesterterpenoids is fewer than other terpenoids reported, they have presented a wide range of biological activities and medicinal value. Reported filamentous fungal sesterterpene synthases are special on bifunctional two catalytically independent domains: prenyltransferase and terpene cyclase, but less specific on substrates selection and diverse ways of cyclization. This article reviews the research advances in filamentous fungal sesterterpenoids and their synthases, especially describes filamentous fungal sesterterpenoids and the structure and function characteristics of sesterterpene synthase. PMID- 29034630 TI - [Transcriptome analysis and gene function annotation of Bambusa emeiensis shoots based on high-throughput sequencing technology]. AB - Bambusa emeiensis is one of the preponderant species of sympodial bamboos in Sichuan province of China, and has excellent fiber length and quality as raw materials for papermaking, textile and other industries. In this study, with the application of Illumina HiSeqTM 2000 platform, we analyzed transcriptome in B. emeiensis with different heights of 10, 50, 100 and 150 cm. A total of 69.28 M reads were obtained, and a sum up of 111 137 bands of Unigenes were acquired following de novo stitching, assembly and clustering, among which there were 63 094 bands that had been integrated in the COG, GO, KEGG, Swiss-Prot and Nr databases using annotated methods. These Unigenes not only had general functions, such as transcription and signal transduction, but were also involved in sucrose transport and metabolism, secondary metabolites and cell wall biosynthesis. There was significant difference regarding the expression of cellulose synthase gene in B. emeiensis at different heights, relevant genes were found that might be responsible for the regulation of the growth and development of B. emeiensis as well as the biosynthesis of cellulose and lignin. Our findings could provide some elementary theories for breed improvement of B. emeiensis. PMID- 29034632 TI - [Research progress and stress-induced variation of DNA methylation in plants]. AB - Chemical modification of DNA bases in recent years has been one of the hot areas of life science research. DNA methylation is a common epigenetic phenomenon and can change the genetic performance without changing the DNA sequence. Various stress factors can induce the variation of DNA methylation in plants, but the response mechanism is still unknown. In this paper, the progress of DNA methylation in plants was reviewed. In combination with the researchconclusions of our own research group, the DNA methylation variation induced by 7Li ion beam and gamma ray was reported to provide a basis for DNA methylation, which may be involved in the phenotypic plasticity of plants. PMID- 29034633 TI - [Comparison of effects of staphylococcal nuclease A fused with different exogenous DNA fragments]. AB - Staphylococcal nuclease A (SNA) may be used to produce bacterial ghosts for further inactivation of host bacteria and elimination of residual genetic materials. It is still controversial if SNA without signal peptide can be secreted to extracellular matrix and if fusion with other peptide is required for its function in the cytoplasm of host bacteria. To clarify this dispute, a series of temperature-inducible plasmids carrying SNA alone or SNA fused with partial sequences of lambda phage cro gene (cSNA) or Mycobacterium tuberculosis urease gene (uSNA) were constructed and evaluated in Escherichia coli. Results show that the percentages of inactivated E. coli by SNA, cSNA and uSNA after 4 h of induction were 99.9%, 99.8% and 74.2%, respectively. Moreover, SNA and cSNA in the cytoplasm of host bacteria were initially detectable after 30 min of induction, whereas uSNA was after 1 h. In comparison, SNA and cSNA in culture supernatant were initially detectable 1 h later, whereas uSNA was 2 h later. The nuclease activity in the cytoplasm or supernatant was ranked as follows: SNA > cSNA > uSNA, and the activity in the supernatant was significantly lower than that in the cytoplasm. Furthermore, host genomic DNA was degraded by SNA or cSNA after 2 h of induction but not by uSNA even throughout the whole experiment. In conclusion, this study indicates that SNA, cSNA and uSNA expressed in host bacteria all have nuclease activity, the enzymes can be released to culture media, and fusion with exogenous peptide negatively reduces the nuclease activity of SNA. PMID- 29034634 TI - [Construction and characterization of type III secretion system of attenuated Salmonella typhimurium]. AB - In order to develop a recombinant attenuated Salmonella typhimurium as oral live vaccine vector, we constructed recombinant plasmid pYA-sopENt100 by replacing the trc promoter with the sopE promoter and secretion signal sequence sopENt100 of Salmonella typhimurium on the basis of plasmid pYA3493. Then, the complementary plasmid pYA-sopENt100 was transformed into DeltacrpDeltaasdSL1344 by electroporation to generate attenuated Salmonella typhimurium type III secretion system DeltacrpDeltaasdSL1344 (pYA-sopENt100). We further characterized DeltacrpDeltaasdSL1344 (pYA-sopENt100). We also constructed a recombinant strain DeltacrpDeltaasdSL1344 (pYA-sopENt100-egfp) that harbored the reporter gene enhanced green fluorescent protein (egfp) gene. Vero cells were infected with DeltacrpDeltaasdSL1344 (pYA-sopENt100-egfp) and the ability of delivery foreign antigens was tested via Western blotting analysis. The results of PCR, enzyme digestion and sequencing showed that the DeltacrpDeltaasdSL1344 (pYA-sopENt100) type III secretion system was constructed successfully. The serotype of DeltacrpDeltaasdSL1344 (pYA-sopENt100) was identical to DeltacrpDeltaasdSL1344 and SL1344. Compared with wild strain SL1344, the biochemical characteristics of DeltacrpDeltaasdSL1344 (pYA-sopENt100) had obvious change, but it was basically the same with DeltacrpDeltaasdSL1344. The growth speed was much slower than that of the wild strain SL1344. The chicken virulence test (LD50) showed that the virulence of DeltacrpDeltaasdSL1344 (pYA-sopENt100) was 7*104 times lower than SL1344. In addition, we observed the 37 kDa SopENt100-egfp protein in the cultured supernatant of DeltacrpDeltaasdSL1344 (pYA-sopENt100-egfp) strain by Western blotting analysis. However, both the 37 kDa SopENt100-egfp protein and 27 kDa EGFP protein were detected in DeltacrpDeltaasdSL1344 (pYA-sopENt100-egfp) infected Vero cells. These results demonstrated that the recombinant Salmonella typhimurium type III secretion system DeltacrpDeltaasdSL1344 (pYA-sopENt100) was successfully constructed, and it should be used as a live vaccine vector for expressing foreign genes. PMID- 29034635 TI - [Structural regulation by calcium ion in preparing cross-linked enzyme aggregates]. AB - We studied the effect of calcium ion on particle size and pore structure of cross linked enzyme aggregates (CLEAs) of glucose oxidase, with activity and stability of the enzyme as evaluation criteria. With calcium ion to prepare CLEA significantly decreased particle sizes of CLEAs whilst the pore structures of CLEAs gradually disappeared with the increase of calcium concentration. When glucose oxidase was precipitated at 0.1 mmol/L Ca2+, glucose oxidase in CLEA showed the definitive pore structure. Moreover, glucose oxidase activity in CLEA with Ca2+ was 1.69 times higher than that without Ca2+. Even at Ca2+ as high as 1.0 mmol/L, glucose oxidase activity in CLEA was 42% higher than that of CLEA without Ca2+. Furthermore, CLEA prepared with 0.1 mmol/L Ca2+ not only exhibited higher substrate conversion and operational stability, but also increased the maximum reaction speed. Therefore, calcium ion improved the performance of glucose oxidase in CLEAs. PMID- 29034636 TI - [High-dose heat shock protein gp96 immunization prevents type 1 diabetes via inducing regulatory T cells]. AB - Type 1 diabetes (T1D), the most prevalent human autoimmune disease, occurs in genetically susceptible individuals. Regulatory T cells (Tregs) are defective in T1D setting. Therefore, efforts to repair or restore Tregs in T1D may prevent or reverse this autoimmune disease. Here, we studied the potential role of rgp96 in preventing T1D, using non-obese diabetic (NOD) mice as an animal model. High-dose rgp96 immunization elicited efficient protection of mice against T1D, as evidenced by stable blood glucose, decreased disease incidence. Significantly increased CD4+ CD25+ Foxp3+ Tregs were observed in immunized mice. In vitro co culture experiments demonstrated that rgp96 stimulation enhanced Treg proliferation and suppressive function by up-regulation of Foxp3 and IL-10. Our work shows that activation of Tregs by high-dose rgp96 immunization protects against T1D via inducing regulatory T cells and provides preventive and therapeutic potential for the development of an rgp96-based vaccine against T1D. PMID- 29034637 TI - [Development, identification and application of 33 monoclonal antibodies against cardiac troponin T]. AB - The aim of this study is to prepare and characterize cardiac troponin T (cTnT) monoclonal antibodies (mAb), and further develop a chemiluminescence quantitative detection assay for cTnT. BALB/c mice were immunized with recombinant cTnT antigen, and specific mAbs were prepared using conventional hybridoma technique and screened by indirect ELISA method. To identify the epitopes, several cTnT peptide fragments were synthesized or expressed by genetic engineering. A double antibody sandwich ELISA method was used to screen the mAb pairs for cTnT detection, and the automatic chemiluminescence detection assay for cTnT was developed. In total 220 clinical specimens were used for system comparison between our assay and Roche cTnT assay; further performance characteristics was evaluated by testing 238 clinical samples and 784 physical examination samples. We successfully screened 33 strains of hybridoms against cTnT, and the mAbs' epitopes were identified. Mab E16H8 and C8G11 with a detection limit of 10 pg/mL cTnT antigen were selected to develop the full automatic chemiluminescence quantitative assay. The correlation coefficient of our reagent with Roche's was 0.959 9, with a coincidence rate of 95%. The assay presented a sensitivity of 97.5%, and a specificity of 99.15% in detection of clinical samples. The cTnT concentration was less than 0.080 6 ng/mL in 99% of general population, which agrees with the definition of WHO on patients with acute myocardial infarction (AMI). In summary, we developed monoclonal antibodies against predominant epitopes for diagnostics of cTnT, and an automatic tubular chemiluminescence quantitative detection assay was further developed, which presents a high coincidence rate with Roche's. PMID- 29034638 TI - [Construction of spider silk functional platform via intein trans-splicing]. AB - To provide technical support for spider silk functional modification, we developed a simple and efficient functional platform via intein trans-splicing. Small ubiquitin-related modifier protein (SUMO) was fused to the recombinant spider silk protein (W2CT) by peptide bond via S0 split intein Ssp DnaB trans splicing, resulting in a protein SUMOW2CT. However, incorporation of exogenous protein led to mechanical property defect and lower fiber yield, and also slowed down the fiber assembly velocity but no obvious differences in supercontraction and chemical resistance when compared with fibers from W2CT (W). SUMO protease digestion showed positive results on the fibers, indicating that the SUMO protein kept its native conformation and bioactive. Above all, this work provides a technical support for spider silk high simply and efficient functionalized modification. PMID- 29034639 TI - [Optimization of expression conditions and activity identification of hepatocyte targeting peptide-human endostatin]. AB - To obtain sufficient purified and active fusion protein-hepatocyte-targeting peptide-human endostatin (HTP-rES), we studied the growth curve and the optimal induction timing of BL21/pET21b-HTP-rES. Different conditions of pH value, induction time, induction concentration and induction temperature were optimized by univariate analysis. After washing, refolding and purifying, the activity of fusion protein was identified by flow cytometry and 3-(4,5)-dimethylthiahiazo (-z y1)-3,5-di-phenytetrazoliumromide (MTT). Results show that the logarithmic growth phase of BL21/pET21b-HTP-rES was from 1.5 h to 3.5 h, the optimum expression conditions were pH 8.0, 0.06 mmol/L IPTG, at 42 C for 5 h. The purity of inclusion bodies was up to 60% after washing. The purity of target protein was more than 95% after refolding and purification. Our findings provide the foundation for further biological activity and drug development. PMID- 29034640 TI - [Preparation and antioxidant activity detection of collagen peptide from Cirrhinus molitorella skin]. AB - In order to prepare antioxidant peptide through hydrolyzing low-value protein resources with bacterial extracellular proteases and to discover novel proteases, crude extracellular protease from Pseudoalteromonas sp. SHK1-2 was obtained through fermentation which was used to hydrolyze collagen extracted from Cirrhinus molitorella skin. Small peptide fraction was isolated from hydrolysate by ultrafiltration and Sephadex LH-20 size exclusion chromatography and showed 1, 1-diphenyl-2-picrylhydrazyl radical scavenging activity (35.6%+/-7%), oxygen radical absorbance capacity and inhibition of DNA oxidation damage. The molecule weight was 776.2 Da, and amino acid sequence was Thr-Ala-Gly-His-Pro- Gly-Thr-His through liquid chromatography mass spectrum. Our findings suggest that peptide obtained from low-value protein of fish waste by hydrolysis with bacterial protease has antioxidant activity. PMID- 29034641 TI - [Establishment of L-periaxin gene knock-out RSC96 cell line]. AB - Periaxin, a protein of noncompact myelin, is specifically expressed in the peripheral nervous system (PNS). There are two protein isoform L-periaxin and S Periaxin by alternative splicing of periaxin gene, playing an important role in the initiation of myelin formation. So far, 18 different mutation sites in L periaxin gene have been found to induce the peripheral demyelinating neurological charcot-marie-tooth diseases subtype 4F (CMT4F). The technique of activation of transcription activator-like effector nucleases (TALENS) was used to knock out the L-periaxin gene in RSC 96 cell line of Rattus. According to the design principle, the knock-out site of L-periaxin was assured to NLS domain of L periaxin, which is target sequence of left and right arms of TALEN. The knock-out vectors of TALEN-L and TALEN-R were established and transfected into RSC96 cell. After puromycin screening, L-periaxin was knocked out successfully in RSC96 cell, which is confirmed by DNA sequence. The mutation efficiency is 21.6%. S-periaxin, not L-periaxin can be detected by Western blotting in L-periaxin gene knock-out RSC96 cell. The cell growth rate was decreased and the number of cells in G1 increased and decreased in S phase in L-periaxin gene knock-out RSC96 cell by flow cytometry and MTT assay. PMID- 29034642 TI - [Construction of recombinant strains co-expressing PPK and GMAS for the synthesis of L-theanine]. AB - Recombinant strains expressing enzymes for ATP regeneration and L-theanine production were constructed and used for the synthesis of L-theanine. The ppk gene encoding polyphosphate kinase (PPK) from Rhodobacter sphaeroides and gmas gene encoding gamma-glutamylmethylamide synthetase (GMAS) from Methylovorus mays were synthesized, and two recombinant plasmids, pETDuet-ppk+gmas and pET21a ppk+gmas were constructed for co-expression of PPK and GMAS in Escherichia coli BL21(DE3). SDS-PAGE analysis showed that PPK and GMAS were overexpressed in soluble form in both recombinant strains. GMAS-PPK obtained from the recombinant strain containing pET21a-ppk+gmas was more efficient to synthesize L-theanine. After 24 h at 37 C and pH at 7.0, 86.0% yield of L-theanine was achieved with catalytic amount of ATP. This study extends the application of enzymatic ATP regeneration system. In addition, it provides an efficient method for the biosynthesis of L-theanine. PMID- 29034643 TI - Epididymo-Orchitis in Bechet's Disease: A Review of the Wide Spectrum of the Disease. AB - Behcet's disease is a chronic, recurrent, inflammatory disorder characterized by orogenital ulcers and skin lesions; serious manifestations also include ocular, large vessel, gastrointestinal and neurological involvement. Genetic and unknown environmental factors modify the wide clinical spectrum of the disease. During the long clinical course of the disease, testicular and epididymal involvement has been reported, with scrotal pain and swelling being the most common symptoms. In this review, we discuss the various aspects of epididymo-orchitis in Behcet's disease patients, and we evaluate the diagnostic approaches as well as the empirical therapeutic modalities of this entity. PMID- 29034644 TI - The Effect of Eicosapentaenoic Acid on the Serum Levels and Enzymatic Activity of Paraoxonase 1 in the Patients With Type 2 Diabetes Mellitus. AB - Paraoxonase 1 is known as one of the most important ant oxidative enzymes associated with HDL-c, and because of its antioxidant and antiinflammatory activities. EPA has the antioxidant, anti inflammatory, antithrombogenic, and antiarteriosclerotic properties. Therefore, we investigated the effect of EPA supplementation on the serum levels and activity of PON1 in type 2 diabetic patients. This study was designed as a randomized, double-blind, and placebo controlled clinical trial. Thirty-six patients with type 2 diabetes were given written; informed consent randomly was classified into 2 groups. They were supplemented with 2 g/day of the capsules of EPA or placebo for eight weeks. Blood sample was given for measurement of the serum levels of lipids, the activity of PON1, FBS and HbA1c. The patients supplemented with EPA showed a significant increase in the serum levels and activity of PON1 and the serum ratio of PON1/HDL-c. There were no significant differences between the two groups regarding any demographic, clinical or biochemical data, total energy intake, and macronutrient intake at the baseline during the intervention, except for a significant increase of protein intake and the levels of HbA1c in the placebo group, and a significant increase of HDL-c, as well as a slight reduction of total cholesterol, LDL-c, TG and FBS in the supplement group. EPA is atheroprotective via increase in the serum levels and activity of PON1, as well as change in the serum levels of lipids, FBS and HbA1c. PMID- 29034645 TI - Peripheral Neuropathy in Multiple Sclerosis: An Electrophysiologic Study in Iranian Patients. AB - Multiple sclerosis (MS) is the most common cause of disability after trauma in young adults in Northern Hemisphere; it imposes a major burden on the affected young people. A significant association between MS and demyelinating peripheral neuropathy which might be due to common pathogenesis for the central and peripheral nerves demyelination has been reported in several studies. We aimed to assess if there is any peripheral nervous system involvement in a sample of Iranian MS population. Extensive nerve conduction studies (NCS) were conducted in 20 MS patients according to McDonald criteria, and 20 age and gender matched healthy appearing controls. The F-wave ratio was calculated through placing the minimum amount of F-wave proximal latency after 10 stimuli and median or tibial nerves compound motor action potential (CMAP) proximal latency in the corresponding formula. Data were compared between groups. Finally, we found the significantly lower median and tibial nerves conduction velocities (NCV) in MS patients than healthy controls (P=0.008 and 0.003 respectively, Independent Samples t-test). Also, tibial NCV had a significant statistical correlation with Kurtzke's expanded disability scale score (EDSS) as patients with higher EDSS had lower tibial NCV (Pearson's correlation coefficient, r2=0.8). No statistical relationship was found between MS subtypes and NCS parameters. Although we found some electrodiagnostic abnormalities in Iranian MS patients in comparison to the healthy participants, these differences were small and inconclusive. More extensive well-designed electrodiagnostic studies for evaluation of peripheral nervous system involvement and its probable pattern in these patients seems to be needed. PMID- 29034646 TI - Index of Theta/Alpha Ratio of the Quantitative Electroencephalogram in Alzheimer's Disease: A Case-Control Study. AB - Alzheimer's disease (AD) is a devastating neurodegenerative disorder in human beings associated with cognitive, behavioral and motor impairments. The main symptom of AD is dementia, which causes difficulties in carrying out daily practices. Brain waves are altered in people with AD. Relative indices of brain waves can be beneficial in the diagnosis of AD. In this case-control study, 50 patients with AD and 50 matched healthy individuals were enrolled in case and control groups respectively. With recording and analyzing of brain waves with the utilization of quantitative electroencephalogram (QEEG), index of theta/alpha ratio was assessed in both groups. The index of theta/alpha ratio was significantly higher in patients with AD in comparison to healthy individuals (P<0.05). Index of theta/alpha ratio obtained by QEEG provides a non-invasive diagnostic marker of AD, which may be helpful in identification of non-advanced disease in susceptible individuals. PMID- 29034647 TI - Seasonality in Violent and Nonviolent Methods of Suicide Attempts: A Cross Sectional Study on Systematic Registry Data. AB - Little attention has been paid to seasonality in suicide in Iran. Time pattern in suicide deaths and suicide attempts for some related factors such as gender, mental disorders has been found. In present study, we focus on suicide methods and the association with seasonality and other putative covariates such as gender. Through a cross-sectional study, overall identified suicide attempts and suicide deaths in the province of Ilam from 1 January 2010 and 31 December 2014 were enrolled. We used Edwards' test for test of seasonality in suicide methods. Seasonal effect (peak/trough seasons) and (deaths/attempts suicide) was explored by ratio statistics, the null hypothesis being that the attempted suicides in each method group are evenly distributed over a year. More suicide attempts by hanging 29.4% and self-immolation 41.4% were observed in spring and differ by season pattern in both genders. The overall distribution of suicides by violent and non-violent methods was (males x2=6.3, P=0.041, females x2=7.7, P=0.021) and (males x2=44.5, P=0.001, females x2=104.7, P=0.001), respectively. The peak and trough seasons was observed in taking medications and self-poisoning for spring and winter. Suicide with alcohol was no differ by season pattern (x2=1.0, P=0.460). Suicide in Ilam illustrates a significant seasonality for both violent and non-violent methods of suicide, in both genders, the two peaks were observed in spring and autumn for violent suicides, and spring and summer in non-violent suicides. PMID- 29034648 TI - Interactive Multimedia Training in Osteoporosis Prevention of Female High School Students: An Interventional Study. AB - Given the limitations of traditional teaching methods in the learning process of adolescents, this study was designed to investigate the effects of osteoporosis prevention training through interactive multimedia method on the degree of knowledge and self-efficacy of female high school students. In this interventional study which was conducted in 2016 in Fars province, Iran, 120 high school students were selected through proportional stratified sampling from schools and different classes at first, second, third, and pre-university grades. The participants were randomly divided into two groups, each containing 60 students. Educational interventions for the test group included an interactive multimedia CD, and for the control group was an educational booklet. Before and one month after the intervention the students' level of knowledge and self efficacy was measured. The spss 19 statistical software was used, and descriptive and analytical tests were performed to analyze the data. Results showed a significant difference in self-efficacy scores after the intervention (P=0.012) with the test group obtained a higher self-efficacy score than the control group. Also, a significant increase was observed in the knowledge score of both groups after the training (P<0.001), but the knowledge score between the two groups was not statistically significant (P=0.38) after the intervention. The use of new training methods like interactive multimedia CD for public education, particular adolescents about health and hygiene is recommended. PMID- 29034649 TI - Implementation a Medical Simulation Curriculum in Emergency Medicine Residency Program. AB - Applying simulation in medical education is becoming more and more popular. The use of simulation in medical training has led to effective learning and safer care for patients. Nowadays educators have confronted with the challenge of respecting patient safety or bedside teaching. There is widespread evidence, supported by robust research, systematic reviews and meta-analysis, on how much effective simulation is. Simulation supports the acquisition of procedural, technical and non-technical skills through repetitive practice with feedbacks. Our plan was to induct simulation in emergency medicine residency program in order to ameliorate our defects in clinical bedside training. Our residents believed that simulation could be effective in their real medical practice. They mentioned that facilitators' expertise and good medical knowledge, was the strongest point of the program and lack of proper facilities was the weakest. PMID- 29034651 TI - Primary Orbital Hydatid Cyst: A Case Report. AB - Hydatid cyst is a rare parasitic infection that involved all organs. It caused by the larval stage of Echinococcus tapeworms. Hydatid cyst of the head and neck is a very rare condition, even in areas where Echinococcus infestation is endemic. Orbital hydatid cyst is extremely rare and accounts for less than 1% of all hydatid cysts. Herein a 24-year-old man with primary orbital hydatid cyst is introduced. He complained from proptosis and diplopia. MRI images revealed a lesion with low signal intensity on T1-weighted images and high signal intensity on T2-weighted images, which displaced the optic nerve inferiorly and the globe inferolateral. The cyst was enucleated via frontotemporal craniotomy and superior orbitotomy approach. Histopathological examination of the fluid confirmed the diagnosis of hydatid cyst. Treatment of the orbital hydatid cyst is surgical excision followed by the systemic use of albendazole. PMID- 29034650 TI - A Complicated Case of Resistant Hypertension. AB - A 47-year-old woman presented with a history of resistant arterial hypertension, associated with disabling headache. She was subjected to an enormous number of tests in order to identify an underlying cause of secondary hypertension, such as pheochromocytoma or Cushing syndrome, but all the most common causes of secondary hypertension were investigated and gradually excluded. Factitious use of amphetamine or cocaine was excluded, and therapy compliance was verified by witnessed ingestion of drug therapy, in order to rule out Munchausen syndrome. The patient underwent a first transcatheter renal denervation (RDN) with poor effect on blood pressure (BP) at long term follow up. Because of extremely poor control of BP values, a second RDN was performed two years later, again with inadequate long term efficacy. Despite an uncontrollable pre-procedural BP, RDN had an excessive BP lowering effect in this patient, but only for few months. In conclusion, a definitive diagnosis was not performed in our patient, despite an extremely deepened examination of the most common cause of refractory hypertension. PMID- 29034652 TI - White Sponge Nevus: Report of a Case and Review of the Literature. AB - White sponge nevus is a rare benign autosomal dominant disorder with variable penetrance. It is characterized by asymptomatic white plaques affecting mainly the oral mucosa. Careful clinical and histopathological examination is indicated to exclude other more serious conditions presenting as oral white lesions. Herein, we present a new case of oral white sponge nevus in a 17-year-old Iranian male with no familial background. PMID- 29034654 TI - Surgical Treatment of Chronic Anal Fissure. PMID- 29034653 TI - Successful Delivery in a Woman With Achondroplasia: A Case Report. AB - Achondroplasia is an autosomal dominant disease which is characterized by limb shortening and narrow trunk, and macrocephaly. Women with achondroplasia suffer from infertility, menorrhagia, dysmenorrhoea, leiomyomata and early menopause. Our case was a 26-year-old woman with achondroplasia who had scoliosis and osteoporosis. She referred to our clinic at 9 weeks of gestation and had all screenings completely. She had a single female fetus with no abnormalities. She had an emergent due to rupture of membranes at 37 weeks and 3 days under general anesthesia. The neonate had no complications. The first minute Apgar score was 9 and 5th-minute Apgar score were 10. Umbilical artery Ph was 7.26 and birth weight was 3140. A woman with achondroplasia could have a normal pregnancy and give birth to a healthy term neonate under precise screening. PMID- 29034655 TI - Surgery for distal hypospadias: what about the catheter? AB - No agreed recommendations exist for timing of urethral stent removal, after distal hypospadias surgery. We compared our preliminary case series with outcomes from literature: 18/44 patients were treated with catheter and 26/44 without it. The surgical outcome was comparable in the two groups. After hypospadias surgery, the main advantage of the immediate postoperative catheter removal was the shorter hospital stay without negatively affecting the care and home management. PMID- 29034656 TI - Guidelines of the Italian Society of Videosurgery in Infancy for the minimally invasive treatment of the esophageal atresia. AB - Not available. PMID- 29034657 TI - Guidelines of the Italian Society of Videosurgery in Infancy for the minimally invasive treatment of the ureteropelvic-junction obstruction. AB - Not available. PMID- 29034659 TI - ? PMID- 29034658 TI - Guidelines of the Italian Society of Videosurgery in Infancy for the minimally invasive treatment of pediatric nephrectomy and partial nephrectomy. AB - Not available. PMID- 29034660 TI - ? PMID- 29034661 TI - [The 2013-2016 Ebola epidemic in West Africa: critical analysis of a crisis primarily social]. AB - The health crisis in West Africa between 2013 and 2016 is coming to an end. The various political, health, and institutional players, involved at various levels, either directly or indirectly in the field, have drawn lessons from this dramatic event, which comprised a number of management errors. The first article of this issue proposes a framework assessment of the concepts and notions involved during the 2014-2016 Ebola epidemic in order to identify the modalities of management of the crisis. This more objective view is based on our experience in the field between 2005 and 2007 following the Ebola epidemic in Central Africa. We propose an analysis of these health crises that highlights the errors and inconsistencies related to the management of the health emergency. In particular, we discuss the meanings of the various terms used to describe Ebola to illustrate the underlying ideology and propose a resolutely critical approach to the resulting management, emphasizing the importance of the development of contextual and long-term approaches, which need to be more frequently taken into account in order to improve the management of future crises. PMID- 29034662 TI - [The lessons of the Ebola epidemic for a more effective preparedness face to health crises]. AB - Although uncommon, public health crises cause considerable human suffering and death and have major political, economic and social impacts. For many years, countries have made considerable efforts to prepare for emergencies. The Ebola epidemic in West Africa, as well as recent events and emerging public health threats force countries to strengthen, adapt or implement their Emergency Preparedness Plans. Emergency Preparedness is a difficult process. Some authors would even say that it is an impossible mission. What do we mean by preparedness ? How can preparedness be evaluated ? What measures must be taken following the Ebola crisis ? Preparedness is one of the Emergency Management phases and is essential to meet the challenges of future crises. Preparedness still constitutes a major challenge for countries and the international community. Based on missions conducted in West Africa and on a review of the literature, the authors review the concepts of emergency preparedness. In particular, they present standards and tools to assess emergency preparedness, using the example of Ebola preparedness assessment in West Africa. PMID- 29034663 TI - [Anthropology engaged against Ebola (2014-2016): approaches, contributions and new questions]. AB - Anthropologists contributed to the response to the 2014-2016 Ebola outbreak in three ways : as Ebola experts, cultural mediators between populations and caregivers, and researchers. This article presents a preliminary review of approaches, contributions and related issues based on a literature review, case studies and debates. The anthropological research discussed in this article concerns four themes : epidemiological contexts of transmission ; cultural interpretation of illness and social responses ; social construction of stakeholders' experience ; critical analysis of public health interventions. In addition to insightful contributions, particularly regarding the socio-political contexts and their interfaces with global public health measures, anthropologists tested forms of communication to facilitate access of public health actors to their results. However, these heterogeneous forms of engagement raise a number of questions, especially when they reflect anthropological interpretations that exclude any critical or reflexive dimension, or when anthropology is considered to be similar to social intervention. Nevertheless, anthropological research provides a major contribution, which could be even greater if transnational networks set up by researchers to analyse the socio-political, economic and biocultural dimensions of emerging epidemics are supported in order to improve ?preparedness? for future health crises. PMID- 29034665 TI - [The origin of Ebola: Biomedical approach versus popular interpretations in Macenta, Guinea]. AB - In December 2013, a two-year-old child died from viral haemorrhagic fever in Meliandou village in the South-East of Guinea, and constituted the likely index case of a major epidemic. When the virus was formally identified as Ebola, epidemiologists started to investigate the chains of transmission, while local people were trying to make sense out of these deaths. The epidemic control measures taken by national and international health agencies were soon faced by strong reluctance and a sometimes aggressive attitude of the affected communities. Preliminary ethnographic observations were carried out by ST in Macenta (Forest region) during an assignment (October-November 2014) for the Global Outbreak and Alert Response Network (GOARN) of the World Health Organization. ST carried out participative observation, informal conversations and in-depth interviews to identify the rumours and their sources, understand the local population's perception and knowledge about the history and origin of the Ebola outbreak in Guinea. Epidemiologists involved in the outbreak response attributed the first Ebola deaths in the Forest region to the transmission of a virus by contact with fluids of patients, but other Guinean citizens believed these deaths were caused by the breach of a taboo. The epidemiological and popular explanations, mainly evolving in parallel, but sometimes overlapping, are driven by different explanatory models, a biomedical model and a traditional religious model. The outbreak response must be flexible and must systematically document popular discourse(s), rumours, codes, practices, knowledge and opinions related to the outbreak and use this information to shape and adapt its control interventions. PMID- 29034664 TI - [Evolution of Community engagement in the fight against Ebola]. AB - CONTEXT: Community engagement is one of the most effective approaches to the fight against Ebola. It has been shown to be effective in other contexts and was implemented in Guinea for two years to reduce the spread of the Ebola Outbreak. METHODS: This article is based on a qualitative approach combining several data collection methods over a nine-month period in the field : series of formal and informal interviews, participating observations, focus groups, comment meetings, analysis of reports and follow-up of news on the Ebola Outbreak. These methods are designed to more effectively describe community engagement in the fight against Ebola in Guinea. RESULTS: Communities were initially subjected to coercive methods of prevention and control of Ebola and were stigmatized. This context subsequently led to two forms of resistance from communities in relation to the actors of prevention : passive and active resistance. The course of the epidemic and the determination of the mediators finally succeeded in involving the communities in the fight against Ebola, which therefore effectively contributed to the end of the epidemic. DISCUSSION: These results demonstrate that, as during other epidemics and in other contexts, communities are not passive stakeholders in the fight against Ebola. They can be actively involved based on their knowledge, but also the attitudes of other actors involved in the fight against VME. PMID- 29034666 TI - [Respiratory cancers attributable to occupational exposures: what is the cost to society in France]. AB - OBJECTIVE: To estimate the social cost of respiratory cancers attributable to occupational risk factors in France in 2010. METHODS: We estimated the number of cases of respiratory cancers attributable to each identified occupational risk factor according to the attributable fractions method. We also estimated direct (costs of hospital stays, drugs, outpatient care) and indirect costs (production losses) related to morbidity (absenteeism and presenteeism) and mortality (years of lost production). Production losses for paid work and unpaid domestic activities were taken into account. RESULTS: The social cost of respiratory cancers (lung, larynx, sinonasal, pleural mesothelioma) attributable to exposure to asbestos, chromium, diesel engine exhaust, polycyclic aromatic hydrocarbons, painting occupations (unidentified carcinogen), crystalline silica, wood and leather dust in France in 2010 was estimated to be between ?960 and 1,866 million. The cost of lung cancer represents between ?804 and 1,617 million. The three risk factors with the greatest impact are asbestos (?530 to 890 million), diesel engine exhaust (?227 to 394 million), and crystalline silica (?116 to 268 million). CONCLUSION: These results provide a conservative estimate of the public health and economic burden of respiratory cancers attributable to occupational risk factors from a societal perspective. PMID- 29034667 TI - [To analyse the transferability of an intervention : applying the functions/implementation/context model on a diabetes prevention programme]. AB - INTRODUCTION: A type 2 diabetes primary prevention programme that was shown to be feasible and effective in 2003 was transferred to another vulnerable district of Reunion Island in 2004, but its short-term effectiveness could not be reproduced. Based on this example, this article analyses whether the key functions/implementation/context model can be useful to : 1- more accurately describe an evaluated intervention ; and 2- identify the factors involved in the transferability of this intervention. METHODS: The causality model of the initial programme is described. We then identified the key functions (or theoretical processes) of this initial programme, implementation of these functions, and the context in which the intervention took place. Transfer was analysed by focusing on the differences between the initial programme and the transferred programme in terms of key functions, implementation and context. RESULTS: The causality model involves individual, meso-social, and environmental health determinants. Our analysis of programme transfer highlights differences in : key functions (two key functions dropped, one key function added, one key function modified), implementation (failure to implement, loss/improvement of quality), and context (population and socioeconomic level of the district concerned). CONCLUSION: This work supports the hypothesis that the key functions/implementation/context model can be useful to improve the description of an intervention, and analyse the factors involved in its transferability. PMID- 29034668 TI - [Health expectations of the inhabitants of a health priority area: a qualitative study]. AB - INTRODUCTION: French law of 4 March 2002 instituted health democracy, making health system users a real partner and active stakeholder in the healthcare system. This role of health system users must be taken into account particularly in health priority areas in order to reduce social inequalities in health. In the context of primary care, multidisciplinary clinics would appear to be ideal places to develop the expression of health democracy. OBJECTIVE: Identify the health expectations of the users of the Villejean clinic (Brittany, France) situated in a health priority area. METHOD: Qualitative study based on individual and group interviews, conducted with Villejean health system users. Transcripts were analysed thematically by a grounded theory approach. RESULTS: Five group interviews and twenty-one individual interviews were conducted in 49 users. The interviewees described high expectations in terms of a quality relationship with healthcare professionals, who were considered to be real educative partners. Users also formulated high expectations in relation to facilitated access to cares, especially concerning financial aspects. CONCLUSION: Identification of users' expectations constitutes the first step in developing a primary care health democracy, in which access to care is a major priority. New multidisciplinary clinic projects must take these users' expectations into account. The creation of user committees could allow the citizen-users' views to be really taken into account. PMID- 29034669 TI - [The Seintinelles: an innovative approach to promoting Community-Based Research and sustaining health democracy in oncology]. AB - Community-based research drives innovation in major fields of public health, HIV/AIDS being the most emblematic example (Demange, Henry & Preau, 2012), and hepatitis. However, this type of research appears to be more difficult to develop in certain specific diseases, such as cancer (Shankand, Saias & Friboulet, 2009). This article proposes various approaches concerning current citizen mobilization in relation to cancer research, including potential new levers to the development of participative and community-based research based on the recent creation of the Seintinelles platform, designed to federate researchers and citizens concerned by the problem of cancer. This reflection will be supported by more global issues concerning health democracy. PMID- 29034670 TI - [Community-based research in therapeutic patient education: practices and contributions. A literature review]. AB - INTRODUCTION: Community-based research (CBR) in health involves both researchers and people concerned by the results of the research. It aims to empower populations, using their exposure to the phenomenon being studied as a starting point. The use of CBR in the field of therapeutic patient education (TPE) is of interest, as the two share such characteristics as the desire to foster self reliance and participation and a culture of interdisciplinarity. AIM: To characterize CBR in the therapeutic patient education field. METHODS: A literature search on PUBMED using the keywords ?community-based (participatory) research?, ?patient education?, ?self-care? and ?self-management? retrieved 121 articles. The analysis looked at the type of research, the characteristics of both the populations involved and the co-researchers, the collaborative actions (analysed using a grid from the literature), and the difficulties in implementing these actions. RESULTS: Thirty-one studies were included. Ten consisted of methodological studies, which tended to show the added value of collaborating with users in implementing TPE programmes compared to standard methods. The remaining 21 studies described the co-design and/or co-execution of new educational programmes. We identified 5 collaborative actions that involved a preparatory phase of the research, and 17 collaborative actions that involved the prioritization, conduct, and analysis of the research and dissemination of the results. Preventive measures are needed for potential methodological, organizational, ethical, and emotional difficulties. DISCUSSION: The 22 identified actions need to be confirmed by other studies. The analysis grid could ultimately become a tool for guiding researchers for their researches within the CBR framework. PMID- 29034671 TI - [Hepatitis C in prison: an opportunity for healthcare]. AB - Prison inmates constitute a vulnerable population, in which socially excluded, poor and marginalized individuals are overrepresented and infectious diseases are more prevalent than in the general population. The poor health of inmates and recently released inmates is a rarely studied public health problem. The health trajectories of inmates living with the hepatitis C virus is an interesting case study to discuss public health interventions in prison. It is presented here as part of a socio-anthropological study of inmates and healthcare professionals in France. These trajectories shed light on treatment and healthcare experiences, within their economic, social, material and institutional constraints. They are an integral part of the public debate on prison health in France, comprising two prominent positions : the "pathogenic prison" and the "healing prison". These extreme positions in the broader context of this debate provide a better understanding of the context and obstacles to public health initiatives in prison and suggest ways to make them more effective. PMID- 29034672 TI - [Motivations and obstacles to occupational disease claims in lung cancer patients: an exploratory psychosocial study]. AB - PURPOSE: The proportion of lung cancers with an occupational origin has been estimated to be between 10 and 20%. They are largely under-reported, as 60% are not compensated as occupational disease. Although most patients are not familiar with the process of compensation, other factors could explain this under reporting. The aim of this study was to identify psychosocial factors that could impact patients with occupational lung cancer to claim for compensation. METHODS: We conducted a case study involving semi-structured interviews with eight lung cancer patients enrolled in a cohort designed to systematically screen occupational exposures and propose claims for compensation to work-related cancer patients. RESULTS: Seven interviewed patients were familiar with occupational cancers, but most of them did not believe that past exposure could be related to their current disease. Patients associated compensation claims with a long and complex procedure for an abstract purpose. Several patients expressed a certain attachment to their employers. CONCLUSION: Interviewed patients often considered compensation claims to be a grievance procedure against the employers whom they did not consider to be responsible for their disease. Lung cancer is itself an obstacle to compensation considering the aggressive treatments and related adverse events, the poor medium-term prognosis and the predominant role of smoking in the etiology of the disease. Patients mentioned the financial compensation and the role of healthcare professionals as key elements to motivate them to claim for compensation. PMID- 29034673 TI - [Occupational exposure to blood among medical students in Casablanca (Morocco): Analysis of knowledge and practices]. AB - Occupational exposure to blood (OEB) is associated with a significant risk of transmission of bloodborne viruses to medical students. The objective of this study was to evaluate the knowledge and practices of Casablanca medical students concerning OEB preventive measures and their behaviour after accidental exposure. A cross-sectional study was carried out at the Ibn Rochd University Hospital in Casablanca using stratified cluster sampling ; data from this study were collected by means of an anonymous self-administered questionnaire. The mean age was 22.38 years (SD = 1.69) with a female predominance (56.0%). About 17.5% of students had experienced at least one OEB, and only 38.3% were familiar with the standard precautions to prevent these accidents. Accidental exposure was significantly associated with needle recapping (p = 0.002) and ignorance of standard precautions (p = 0.028).These results illustrate the insufficient knowledge and poor compliance with preventive measures of occupational exposure to blood, indicating the need for awareness-raising and training activities for medical students. PMID- 29034674 TI - [HAS budget impact analysis guidelines: A new decision-making tool]. AB - INTRODUCTION: Budget impact analysis (BIA) provides short and medium-term estimates on changes in budgets and resources resulting from the adoption of new health interventions. OBJECTIVE: The objective of this article is to present the main messages of the newly developed French National Authority for Health (HAS) guidelines on budget impact analysis : issues, recommendations and perspectives. METHODS: The HAS guidelines development process was based on data derived from a literature review on BIA (search dates : January 2000 to June 2016), an HAS retrospective investigation, a public consultation, international expert advice, and approval from the HAS Board and the Economic and Public Health Evaluation Committee. RESULTS: Based on its research findings, HAS developed its first BIA guidelines, which include recommendations on the following topics : BIA definition, perspective, populations, time horizon, compared scenarios, budget impact models, costing, discounting, choice of clinical data, reporting of results and uncertainty analysis. CONCLUSION: The HAS BIA guidelines are expected to enhance the usefulness of BIA as an essential part of a comprehensive economic assessment of healthcare interventions, which itself includes cost-effectiveness analysis and equity of access to healthcare. PMID- 29034675 TI - ? PMID- 29034676 TI - Lipid Peroxidation and Its Role in the Expression of NLRP1a and NLRP3 Genes in Testicular Tissue of Male Rats: a Model of Spinal Cord Injury AB - BAckground: The majority of male patients with spinal cord injury (SCI) suffer from infertility. Nucleotide-binding oligomerization domain-like receptors NOD like receptors (NLRs) are a kind of receptors that corporate in the inflammasome complex. Recent studies have introduced the inflammasome as the responsible agent for secreting cytokines in semen. Reactive oxygen species (ROS) is one of the elements that trigger inflammasome activation. Genital infections in SCI can lead to ROS generation. We investigated the relation between lipid peroxidation and inflammasome complex activity in testicular tissue of SCI rats. Methods: Adult male rats (n=20), weighting 200-250 g, were included and divided into four groups: three experimental groups, including SCI1, SCI3, and SCI7, i.e. the rats were subjected to SCI procedure and sacrificed after one, three, and seven days, respectively and a control group. We performed a moderate, midline spinal contusion injury at thoracic level 10. The animals were anesthetized, and testes were collected for measurement of gene expression by real-time PCR. Caudal parts of epididymis were collected for malondialdehyde (MDA) measurement. Results: No NLRP1a mRNA over expression was seen in the testes of control and SCI groups. After seven days from SCI surgery, NLRP3 mRNA expression was significantly increased in SCI7 animals (P<=0.05). There was a significant difference in MDA level in SCI7 versus control group, as well as SCI1 and SCI3 animals (P<=0.05). Conclusion: NLRP3 overexpression occurs due to the increased ROS production in testicular tissue of SCI rats. PMID- 29034677 TI - Rapid Enrichment and Sensitive Detection of Multiple Metal Ions Enabled by Macroporous Graphene Foam. AB - Nanomaterials have shown great promise in advancing biomedical and environmental analysis because of the unique properties originated from their ultrafine dimensions. In general, nanomaterials are separately applied to either enhance detection by producing strong signals upon target recognition or to specifically extract analytes taking advantage of their high specific surface area. Herein, we report a dual-functional nanomaterial-based platform that can simultaneously enrich and enable sensitive detection of multiple metal ions. The macroporous graphene foam (GF) we prepared displays abundant phosphate groups on the surface and can extract divalent metal ions via metal-phosphate coordination. The enriched metal ions then activate the metal-responsive DNAzymes and produce the fluorescently labeled single-stranded DNAs that are adsorbed and quenched by the GF. The resultant fluorescence reduction can be used for metal quantitation. The present work demonstrated duplexed detection of Pb2+ and Cu2+ using the Pb- and Cu-responsive DNAzymes, achieving a low detection limit of 50 pM and 0.6 nM, respectively. Successful quantification of Pb2+ and Cu2+ in human serum and river water were achieved with high metal recovery. Since the phosphate-decorated GF can enrich diverse types of divalent metal cations, this dual-functional GF DNAzyme platform can serve as a simple and cost-effective tool for rapid and accurate metal quantification in determination of human metal exposure and inspection of environmental contamination. PMID- 29034678 TI - Additive Models Reveal Sources of Metals and Organic Pollutants in Norwegian Marine Sediments. AB - We characterized spatial patterns of surface sediment concentrations of seven polychlorinated biphenyls (PCBs), seven polycyclic aromatic hydrocarbons (PAHs), three chlorinated pesticides, and five metals in Norwegian waters and Skagerrak. In total, we analyzed 5036 concentrations of 22 chemical substances that were measured between 1986 and 2014 at 333 sampling sites by means of generalized additive models (GAMs). We found that GAMs with organic carbon content of the sediment and latitude and longitude as co-variates explained as ca. 75% of the variability of the contaminant sediment concentrations. For metals, a predominantly hotspot-driven spatial pattern was found, i.e., we identified historical pollution hotspots (e.g., Sorfjord in western Norway) for mercury, zinc, cadmium, and lead. Highest concentrations of PAHs and PCBs were found close to densely populated and industrialized regions, i.e., in the North Sea and in the Kattegat and Skagerrak. The spatial pattern of the PCBs suggests the secondary and diffuse atmospheric nature of their sources. Atmospheric inputs are the main sources of pollution for most organic chemicals considered, but north of the Arctic circle, we found that concentrations of PAHs increased from south to north most likely related to a combination of coal-eroding bedrock and the biological pump. The knowledge acquired in the present research is essential for developing effective remediation strategies that are consistent with international conventions on pollution control. PMID- 29034679 TI - Self-Assembled LiNi1/3Co1/3Mn1/3O2 Nanosheet Cathode with High Electrochemical Performance. AB - We have fabricated self-assembled LiNi1/3Co1/3Mn1/3O2 nanosheets via a facile synthesis method combining coprecipitation with the hydrothermal method. Scanning electron microscopic images show that the self-assembly processes for the LiNi1/3Co1/3Mn1/3O2 nanosheets depend on the reaction time and temperature. The nanosheet structure is uniform, and the width and thickness of the nanosheets are in the ranges of 0.7-1.5 MUm and 10-100 nm, respectively. As a cathode material, the as-synthesized LiNi1/3Co1/3Mn1/3O2 nanosheets have demonstrated outstanding electrochemical performance. The initial specific capacity was 193 mAh g-1, and the capacity was maintained at 189 mAh g-1 after 100 cycles at 0.2 C, and 155 mAh g-1 at 1 C (after 1000 cycles). The LiNi1/3Co1/3Mn1/3O2 nanosheets have efficient contact with the electrolyte and short Li+ diffusion paths, as well as sufficient void spaces to accommodate large volume variation. The nanosheets are thus beneficial to the diffusion of Li+ in the electrode. The enhanced electrical conductance and excellent capacity demonstrate the great potential of LiNi1/3Co1/3Mn1/3O2 nanosheets for energy storage applications. PMID- 29034680 TI - Boronic Acids as Phase-Transfer Reagents for Fischer Glycosidations in Low Polarity Solvents. AB - Protocols employing phenylboronic acid as a phase-transfer reagent for Fischer glycosidations in low-polarity organic solvents are described. In addition to providing rate acceleration, the formation of a substrate-derived boronic ester alters the course of the reaction by selective promotion of a furanoside- or pyranoside-selective pathway. Computational modeling of the relative energies of the glycoside-derived boronic esters provides results that are qualitatively consistent with the observed distributions of furanoside versus pyranoside products. The boronic esters that are obtained as direct products of these reactions serve as protected intermediates for the synthesis of functionalized glycosides. Complexation of particular diol groups by the boronic acid also enables selective transformations of mixtures of carbohydrates. PMID- 29034681 TI - Decarbethoxylative Arylation Employing Arynes: A Metal-Free Pathway to Arylfluoroamides. AB - An efficient, metal-free decarbethoxylative arylation protocol for the synthesis of alpha-aryl-alpha-fluoroamides from fluoromalonamates, under ambient reaction conditions using aryne as an electrophilic arylating agent, is reported. This decarbethoxylative arylation proceeds under mild conditions and provides a practical and effective entry to a wide range of alpha-aryl-alpha fluoroacetamides. Interestingly, the use of the tert-butyl ester of fluoromalonamate prevented the otherwise rapid decarboxylation step, affording the arylated fluoromalonamate in moderate yield. PMID- 29034682 TI - Modulated Transport Behavior of Two-Dimensional Electron Gas at Ni-Doped LaAlO3/SrTiO3 Heterointerfaces. AB - Modulating transport behaviors of two-dimensional electron gases are of critical importance for applications of the next-generation multifunctional oxide electronics. In this study, transport behaviors of LaAlO3/SrTiO3 heterointerfaces modified through the Ni dopant and the light irradiation have been investigated. Through the Ni dopant, the resistances increase significantly and a resistance upturn phenomenon due to the Kondo effect is observed at T < 40 K. Under a 360 nm light irradiation, the interfaces exhibit a persistent photoconductivity and a suppressed Kondo effect at low temperature due to the increased mobility measured through the photo-Hall method. Moreover, the relative changes in resistance of interfaces induced by light are increased from 800 to 6600% at T = 12 K with increasing the substitution of Ni, which is discussed by the band bending and the lattice effect due to the Ni dopant. This work paves the way for better controlling the emerging properties of complex oxide heterointerfaces and would be helpful for photoelectric device applications based on all-oxides. PMID- 29034683 TI - A Budding-Defective M2 Mutant Exhibits Reduced Membrane Interaction, Insensitivity to Cholesterol, and Perturbed Interdomain Coupling. AB - Influenza A M2 is a membrane-associated protein with a C-terminal amphipathic helix that plays a cholesterol-dependent role in viral budding. An M2 mutant with alanine substitutions in the C-terminal amphipathic helix is deficient in viral scission. With the goal of providing atomic-level understanding of how the wild type protein functions, we used a multipronged site-directed spin labeling electron paramagnetic resonance spectroscopy (SDSL-EPR) approach to characterize the conformational properties of the alanine mutant. We spin-labeled sites in the transmembrane (TM) domain and the C-terminal amphipathic helix (AH) of wild-type (WT) and mutant M2, and collected information on line shapes, relaxation rates, membrane topology, and distances within the homotetramer in membranes with and without cholesterol. Our results identify marked differences in the conformation and dynamics between the WT and the alanine mutant. Compared to WT, the dominant population of the mutant AH is more dynamic, shallower in the membrane, and has altered quaternary arrangement of the C-terminal domain. While the AH becomes more dynamic, the dominant population of the TM domain of the mutant is immobilized. The presence of cholesterol changes the conformation and dynamics of the WT protein, while the alanine mutant is insensitive to cholesterol. These findings provide new insight into how M2 may facilitate budding. We propose the AH-membrane interaction modulates the arrangement of the TM helices, effectively stabilizing a conformational state that enables M2 to facilitate viral budding. Antagonizing the properties of the AH that enable interdomain coupling within M2 may therefore present a novel strategy for anti-influenza drug design. PMID- 29034684 TI - Ynol Ethers as Ketene Equivalents in Rhodium-Catalyzed Intermolecular [5 + 2] Cycloaddition Reactions. AB - The previously unexplored metal-catalyzed [5 + 2] cycloadditions of vinylcyclopropanes (VCPs) and electron-rich alkynes (ynol ethers) have been found to provide a highly efficient, direct route to dioxygenated seven-membered rings, a common feature of numerous natural and non-natural targets and building blocks for synthesis. The reactions proceed in high yield at room temperature and tolerate a broad range of functionalities. Substituted VCPs were found to react with high regioselectivity. PMID- 29034685 TI - Improving Performance on Preventive Health Quality Measures Using Clinical Decision Support to Capture Care Done Elsewhere and Patient Exceptions. AB - Preventive services required for performance measurement often are completed in outside health systems and not captured in electronic medical records (EMRs). A before-after study was conducted to examine the ability of clinical decision support (CDS) to improve performance on preventive quality measures, capture clinician-reported services completed elsewhere, and patient/medical exceptions and to describe their impact on quality measurement. CDS improved performance on colorectal cancer screening, osteoporosis screening, and pneumococcal vaccination measures ( P < .05) but not breast or cervical cancer screening. CDS captured clinician-reported services completed elsewhere (2% to 10%) and patient/medical exceptions (<3%). Compared to measures using only within-system data, including services completed elsewhere in the numerator improved performance: pneumococcal vaccine (73% vs 82%); breast (69% vs 75%), colorectal (58% vs 70%), and cervical cancer (53% vs 62%); and osteoporosis (72% vs 75%) screening ( P < .05). Visit based CDS can capture clinician-reported preventive services, and accounting for services completed elsewhere improves performance on quality measures. PMID- 29034687 TI - Predictors of Placement of Inpatient Palliative Care Consult Orders Among Patients With Breast, Lung, and Colon Cancer in a Safety Net Hospital System. AB - BACKGROUND: The provision of palliative and end-of-life care to patients who are underrepresented and underserved provides unique challenges and opportunities. OBJECTIVES: To examine predictors of placement of inpatient palliative care consult orders among patients with breast, lung, and colorectal cancer hospitalized in a safety net hospital in 2010. METHODS: Simple and multivariable logistic regression of data on selected patients with cancer was performed to identify predictors of placement of inpatient palliative care consult orders. RESULTS: Of 979 patients, 56% had colorectal cancer, 23% had lung cancer, and 21% had breast cancer. Of those patients, 16% received an order for inpatient palliative care consultation during the study period. Patients who had more than 20 prescriptions for opioids ordered (adjusted odds ratio [AOR]: 9.10, 95% confidence interval [CI]: 4.62-17.95), had an order for a radiation oncology consult (AOR: 2.60, 95% CI: 1.50-4.49), or had low albumin (AOR: 2.75, 95% CI: 4.71) were more likely to have an order for an inpatient palliative care consult placed. Race and ethnicity were not statistically significant predictors. CONCLUSION: In this cohort of patients in a safety net hospital, markers of pain, advanced disease, and poor prognosis were associated with placement of inpatient palliative care consult orders. PMID- 29034688 TI - End-of-life Characteristics and Palliative Care Provision for Patients With Motor Neuron Disease. AB - Motor neuron disease (MND) is a neurodegenerative disease and manifested as progressive decline in physical, respiratory, swallowing and communication function, and ultimately death. Traditional model of care was fragmented and did not match with multifacet needs of patients and carers. Furthermore, there could be lack of integrated care at end of life for patients with MND in most lower- and middle-income countries or in places with inadequate palliative care (PC) coverage. In view of this, a special workgroup for patients with MND, which includes neurologist, respiratory physician, rehabilitation specialist, and PC physician was formed in Hong Kong since year 2011. In various disease phase, each specialty team plays a leading role in coordinated care of patients with MND. From July 2011 to June 2017, a total of 52 patients with MND were referred for PC; 41 deceased patients with MND were included into data analysis. Major cause of death remains pneumonia (54.8%) and respiratory failure (40.5%). Most of the patients with MND (66.7%) died in acute ward and neurology units, with only 11.9% dying in PC units and hospices. The PC team plays a major role in advance care planning (ACP), and most patients had their ACP documented at second or third PC clinic visit (93.8%). Patients with MND often have limitations in mobility, swallowing difficulty, respiratory insufficiency requiring ventilator support, and various psychosocial needs. This highlighted the importance of early PC referral. PMID- 29034689 TI - Autonomy and Withdrawal of Treatment in a Patient With Depression. PMID- 29034690 TI - Educator perspectives on the postsecondary transition difficulties of students with autism. AB - Addressing the challenges of adolescents and emerging adults with autism spectrum disorder is crucial to improving the outcomes of these students in the postsecondary setting. Although secondary and postsecondary educators and staff are critical to helping these students access services, there has been little investigation into the perspectives of this stakeholder group, with respect to the needs of postsecondary students with autism spectrum disorder. A series of focus groups was conducted with secondary and postsecondary educators to understand educator perspectives related to the challenges faced by postsecondary students with autism spectrum disorder. Competence, autonomy and independence, and the development and sustainment of interpersonal relationships emerged as primary areas of difficulty and corresponding need. Results suggest that targeted interventions addressing these areas should be implemented, prior to and during enrollment in a postsecondary setting, to facilitate transition in a comprehensive manner. PMID- 29034691 TI - Combined transarterial chemoembolization and radiofrequency ablation for small treatment-naive hepatocellular carcinoma infeasible for ultrasound-guided radiofrequency ablation: long-term outcomes. AB - Background Ultrasound (US)-guided radiofrequency ablation (RFA) for small hepatocellular carcinoma (HCC) is often infeasible due to unfavorable location and poor conspicuity. Those small HCCs can be treated with combined transarterial chemoembolization (TACE) and RFA. Purpose To evaluate long-term outcomes of combined TACE and RFA for small treatment-naive HCC infeasible for US-guided RFA. Material and Methods Between February 2009 and January 2014, 69 patients with small (<=3 cm) HCC infeasible for US-guided RFA received TACE and subsequent RFA in one session as a first-line treatment. Local tumor progression (LTP), overall survival (OS), and event-free survival rates were evaluated. Univariate and multivariate analyses were conducted to identify prognostic factors. Results Cumulative rates of LTP were 4.4%, 6.8%, 8.2%, 9.5%, and 9.5% at one, two, three, five, and seven years, respectively. Cumulative one-, two-, three-, five-, and seven-year OS rates were 100%, 95%, 89%, 80%, and 80%, respectively. Cumulative one-, two-, three-, five-, and seven-year event-free survival rates were 81%, 63%, 54%, 31%, and 20%, respectively. No significant prognostic factors for LTP, OS, and event-free survival were identified in univariate analysis. Conclusion Combined TACE and RFA appears to be an effective treatment for small treatment naive HCC infeasible for US-guided RFA in terms of LTP and OS. PMID- 29034692 TI - Psychiatric impairment ratings in children and adolescents. AB - OBJECTIVES: It is accepted practice in Australia and New Zealand for psychiatric impairment rating scales to be applied for persons claiming psychiatric injury. These scales were derived for adults, not children. There is less clarity as to whether and how these scales may be applied for children claiming psychiatric injury. METHODS: We review Australian and New Zealand guidelines and methods for assessing permanent psychiatric impairment, as they apply to children and adolescents. RESULTS: With significant caution, psychiatric impairment rating scales can be administered for children. Guidance and recommendations in this regard are provided. For some, the effects of psychiatric injury may not be stable, and permanent impairment assessment should be delayed until sufficient maturity occurs. CONCLUSIONS: Psychiatric impairment rating scales are widely applied for adults claiming psychiatric injury, however caution must be exercised when these scales are used in children. PMID- 29034694 TI - On being supervised: getting value from a clinical supervisor and making the relationship work when it is not. AB - OBJECTIVE: The importance of clinical supervision is emphasised in psychiatric training programs. Despite this, the purpose and processes of supervision are often poorly defined. There is limited guidance available for trainees about their role in making supervision work. This paper considers the nature of supervision in psychiatric training and provides practical advice to help supervisees take active steps to make supervision work. CONCLUSIONS: In obtaining value from supervision, the active role of the supervisee in seeking feedback, finding value in criticism and building autonomy is emphasised. Additionally, the importance of exploring what value a supervisor can offer and maintaining realistic expectations is considered. Trainees can benefit from taking an active role in planning and managing their supervision to maximise their learning. PMID- 29034693 TI - Role of 18F-FDG PET/CT vs CT-scan in patients with pulmonary metastases previously operated on for colorectal liver metastases. AB - OBJECTIVE: There is currently no conclusive scientific evidence available regarding the role of the 18F-FDG PET/CT for detecting pulmonary metastases from colorectal cancer (PMCRC) in patients operated on for colorectal liver metastases (CRLM). In the follow up of patients who underwent surgery for CRLM, we compare CT-scan and 18F-FDG PET/CT in patients with PMCRC. METHODS: We designed the study prospectively performing an 18F-FDG PET/CT on all patients operated on for CRLM where the CT-scan detected PMCRC during the follow up. We included patients who were operated on for PMCRC because the histological findings were taken as a control rather than biopsies. RESULTS: Of the 101 pulmonary nodules removed from 57 patients, the CT-scan identified a greater number (89 nodules) than the 18F FDG PET/CT (75 nodules) (p < 0.001). Sensitivity was greater with the CT-scan (90 vs 76%, respectively) with a lower specificity (50 vs 75%, respectively) than with the 18F-FDG PET/CT. There were no differences between positive-predictive value and negative-predictive value. The 18F-FDG PET/CT detected more pulmonary nodules in four patients (one PMCRC in each of these patients) and more extrapulmonary disease in six patients (four mediastinal lymph nodes, one retroperitoneal lymph node and one liver metastases) that the CT-scan had not detected. CONCLUSION: Although CT-scans have a greater capacity to detect PMCRC, the 18F-FDG PET/CT could be useful in the detection of more pulmonary and extrapulmonary disease not identified by the CT-scan. Advances in knowledge: We tried to clarify the utility of 18F-FDG PET/CT in the management of this subpopulation of patients. PMID- 29034695 TI - What is the clinical significance of chronic emptiness in borderline personality disorder? AB - OBJECTIVE: The objective of this study was to review the clinical significance of the experience of chronic emptiness in borderline personality disorder (BPD). METHODS: A systematic search of the literature was conducted using MEDLINE and PubMed, employing search terms including 'emptiness', 'personality disorder' and 'borderline personality disorder'. The most relevant English-language articles and books were selected for this review. RESULTS: Published literature and clinical experience suggest that chronic emptiness represents a substantial component of the symptom burden experienced by people with BPD, contributes to functional impairment and may distinguish BPD from other disorders such as major depressive disorder. CONCLUSIONS: Further research will elucidate the significance of chronic emptiness with regard to diagnosis, prognosis and treatment of BPD. PMID- 29034697 TI - Factors influencing black men and their partners' knowledge of prostate cancer screening: a literature review. AB - : Prostate cancer is the most commonly diagnosed cancer in men in the UK, with 46 690 new cases in 2014. While there is sufficient research on this topic in the USA, there is no review in the UK regarding both black men and their significant others' perspective on prostate cancer screening. AIM: To identify and explore factors that may influence black men and their significant others' knowledge and awareness of prostate cancer screening. METHOD: A literature search revealed seven relevant articles. RESULTS: Six of the seven articles were conducted in the USA. The results are described using four themes: perception of prostate cancer screening, fear, anxiety and discomfort, misinformation about prostate cancer screening procedures and communication and decision-making. CONCLUSION: The evidence suggests that some black men and their significant others had knowledge and awareness of prostate cancer screening. However, their views were influenced by misperceptions, misinformation, fear and anxiety around screening procedures and mortality. Communication and spousal support were important in decision making. PMID- 29034696 TI - Development of the Supported Employment, Comprehensive Cognitive Enhancement, and Social Skills program for adults on the autism spectrum: Results of initial study. AB - The population of adults on the autism spectrum continues to increase, and vocational outcomes are particularly poor. Longitudinal studies of adults with autism spectrum and without intellectual disability have shown consistent and persistent deficits across cognitive, social, and vocational domains, indicating a need for effective treatments of functional disabilities as each impact employment. This initial pilot study is an open trial investigation of the feasibility, acceptability, and initial estimates of outcomes for the newly developed Supported Employment, Comprehensive Cognitive Enhancement, and Social Skills intervention, a manualized "soft skills" curriculum, to enhance both cognitive and social development in adults with autism spectrum. A total of eight adults with autism spectrum, without intellectual disability (78% males), participated in the study. Results support the original hypothesis that adults with autism spectrum can improve both cognitive (i.e. executive functioning) and social cognitive (i.e. social thinking and social communication) abilities. Further Supported Employment, Comprehensive Cognitive Enhancement, and Social Skills was found to be feasible, acceptable, and highly satisfactory for participants and parents. Employment rates more than doubled post-intervention, with an increase from 22% to 56% of participants employed. Conclusion is that Supported Employment, Comprehensive Cognitive Enhancement, and Social Skills has promise as an intervention that can be easily embedded into exiting supported employment vocational training programs to improve cognitive, social, and vocational outcomes. PMID- 29034699 TI - Valuing what we do. PMID- 29034698 TI - An insight into the patient's response to a diagnosis of urological cancer. AB - A cancer diagnosis and the patient's response to the news pertains to all types of cancer, however, in this article, the focus is on urological cancer. Intrinsic to the management of this patient group is the urology multidisciplinary team, in which the role of the cancer nurse specialist (CNS) is pivotal. For most people, a cancer diagnosis is arguably their worst fear. It is therefore prudent that a holistic approach is used when determining care and ensuring that appropriate support is forthcoming. This necessitates an assessment of the physical, psychological/emotional, psycho-social, spiritual and cultural components of the individual's healthcare needs, and accordingly, devising a plan of care to secure the best outcomes. This article concentrates on the psychological/emotional component. It outlines a case study of a patient's response to the consultant's question in the joint consultation clinic, examines the CNS's interpretation and understanding of the events, and her perspective on whether factors such as fear, anxiety and distress influence the individual's response to the diagnosis, their comprehension of information and the messages relayed, and consequently, their ability to manage the ensuing issues. It also looks at the support available to cancer patients following the receipt of a cancer diagnosis and its efficacy in addressing their concerns. Integral to this is effective communication, specifically the timely provision of information by health professionals. PMID- 29034700 TI - Trust clinical negligence claims: the problem of escalating costs. AB - John Tingle, Associate Professor (Teaching and Scholarship), Nottingham Trent University, discusses a recent report by the National Audit Office on managing the costs of clinical negligence in trusts. PMID- 29034701 TI - Urological issues following gender reassignment surgery. AB - It has been estimated that 0.2% of the UK population identifies as transgender. For those who seek gender reassignment, the pathway can involve the expertise of multiple disciplines, including primary care, psychology, endocrinology and speech and language therapy. A small but significant number of the transgender population will also elect to undergo gender-affirming genital surgery in order to achieve gender congruence. In the UK, very few specialist centres provide genital gender-affirming surgery for trans-men and women. The population accessing these services spans the entire UK, and with such geographical dispersion, trans-patients with uro-genital complications after surgery in both the short and long term are likely to present locally, with initial assessment/management often conducted in a non-specialist setting. This article aims to help familiarise nurses with genital gender reassignment/affirming surgery and the resultant altered anatomy. It explores the urological issues trans-men and women may experience as a consequence of surgery. PMID- 29034702 TI - Taking a comprehensive health history: learning through practice and reflection. AB - Taking a comprehensive health history is a core competency of the advanced nursing role. The purpose of the health history is to source important and intimate knowledge about the patient and allow the nurse and patient to establish a therapeutic relationship. Reflective practice, a core value of nursing in Ireland, means learning from experience. This article demonstrates how a recorded comprehensive health history simulation, coupled with reflection, provided insight into an advanced nurse practitioner's history-taking skills, thereby enhancing clinical practice. PMID- 29034703 TI - Managing when a person with dementia comes onto the ward. PMID- 29034704 TI - The role of nutrition and hydration in disease prevention and patient safety. AB - Omorogieva Ojo, Senior Lecturer in Primary Care at the University of Greenwich, O.Ojo@greenwich.ac.uk , looks at the importance of nutrition and hydration across healthcare settings. PMID- 29034705 TI - Considering the future direction of children's and young people's nursing. AB - Sonya Clark, Senior Lecturer in Children's Nursing at Queen's University Belfast, Emeritus Professor Alan Glasper, from the University of Southampton and Jim Richardson, Senior Lecturer in Children's Nursing at Kingston University and St George's, University of London, discuss the concerns of the academic community. PMID- 29034706 TI - Chronic lymphocytic leukaemia and secondary skin malignancies. AB - Chronic lymphocytic leukaemia (CLL) is a non-Hodgkin lymphoma commonly occurring in older adults. Many people with CLL can go for years without requiring treatment. However, they have an increased risk of secondary cancers, specifically melanoma and non-melanoma skin cancers. Furthermore, these secondary cancers are frequently more aggressive in this cohort of patients. Health professionals working in haematology, dermatology and general practice have an opportunity to educate patients about risk factors and measures to aid prevention. Modern technology may assist patients and professionals in the early detection of secondary skin cancers, which will lead to expedited treatment and better survival outcomes. PMID- 29034708 TI - Integrating charity work into our role as future nurses. AB - Gabriella Gilbert, a student nurse based in Gibraltar, has done some voluntary work that enhanced her understanding of care outside of the acute and primary care settings. PMID- 29034707 TI - Female genital mutilation: implications for clinical practice. AB - Female genital mutilation (FGM) is an established cultural practice in over 30 countries. It has no health benefits, carries a high risk of physical and psychological harm, and is illegal in many countries including the UK. A sensitive approach is required, both in the management of complications and prevention of this practice. This article discusses the prevalence and classification of FGM, and offers practical advice to nurses and midwives involved in general and obstetric care. Legal aspects, including safeguarding responsibilities and the mandatory duty to report FGM in England and Wales, are outlined. PMID- 29034709 TI - Advanced wound healing and NPWT: overcoming the challenges. AB - Nicholas Bunce, Editor of Nursing and Residential Care, discusses some highlights of the recent Hartmann LINK for Wound Healing Congress, which was organised in collaboration with the Journal of Wound Care. PMID- 29034710 TI - Developing our future leaders: the role of a global mentoring programme. AB - Elizabeth Rosser, Deputy Dean (Education and Professional Practice) and Professor of Nursing at Bournemouth University, describes the experience of taking part in a global mentoring programme. PMID- 29034711 TI - Electromagnetically guided bedside placement of post-pyloric feeding tubes in critical care. AB - Post-pyloric feeding is recommended in critically ill patients with gastro intestinal intolerance. However, traditional placement methods are logistically difficult and carry potential risks. The authors retrospectively compared the position of post-pyloric feeding tubes (PPFTs) using an electromagnetic device that demonstrated by X-ray and analysed the complication rates, proportion of lung placements avoided and the time taken to establish enteral feeding. Forty placements in 37 mechanically ventilated patients were analysed; there was a success rate of 87.5%. Sensitivity and specificity were 77% (95% CI 59.9-89.6%) and 100% (95% CI 48.0-100%). Five lung placements were identified in real time and therefore avoided. The mean (SD) time from PPFT placement to X-ray was 134 minutes (+/- 139 minutes) and, to feeding, 276 minutes (+/- 213 minutes). In conclusion, placement of PPFT using an electromagnetic device carries a high success rate, is safe and feasible to undertake at the bedside in mechanically ventilated patients. PMID- 29034712 TI - BJN Awards 2017: Nutrition Nurse of the Year Runner up. PMID- 29034713 TI - It's not epilepsy. PMID- 29034714 TI - Giving evidence in court. AB - Richard Griffith, Senior Lecturer in Health Law at Swansea University, discusses the elements of effective evidence giving when appearing before a court or fitness to practise panel. PMID- 29034715 TI - Mental health care in prisons. PMID- 29034716 TI - How to approach changing jobs. AB - Sam Foster, Chief Nurse, Oxford University Hospitals, reflects on the process of taking on a new role-from leaving a job to building relationships with new colleagues-and on empowering teams to promote staff retention. PMID- 29034717 TI - Treatment seeking for problematic pornography use among women. AB - Background and aims Previous studies examined psychological factors related to treatment seeking for problematic pornography use (PU) among males. In this study, we focused on females who seek treatment for problematic PU and compared them with non-problematic pornography users with regard to variables related to problematic PU. Second, we investigated the relationships between critical constructs related to problematic PU with the path analysis method, emphasizing the predictors for treatment seeking among women. We also compared our results with previous studies on males. Methods A survey study was conducted on 719 Polish-speaking Caucasian females, 14-63 years old, including 39 treatment seekers for problematic PU. Results The positive relationship between the mere amount of PU and treatment seeking loses its significance after introducing two other predictors of treatment-seeking: religiosity and negative symptoms associated with PU. This pattern is different from the results obtained in previous studies on males. Discussion Different from previous studies on male samples, our analysis showed that in the case of women, mere amount of PU may be related to treatment-seeking behavior even after accounting for negative symptoms associated with PU. Moreover, religiousness is a significant predictor of treatment seeking among women, which may indicate that in the case of women, treatment seeking for problematic PU is motivated not only by experienced negative symptoms of PU but also by personal beliefs about PU and social norms. Conclusion For females, negative symptoms associated with PU, the amount of PU and religiosity is associated with treatment seeking. Those factors should be considered in treatment. PMID- 29034718 TI - The prognostic value of the furosemide stress test in predicting delayed graft function following deceased donor kidney transplantation. AB - OBJECTIVES AND METHODS: The Furosemide Stress Test (FST) is a novel dynamic assessment of tubular function that has been shown in preliminary studies to predict patients who will progress to advanced stage acute kidney injury, including those who receive renal replacement therapy (RRT). The aim of this study is to investigate if the urinary response to a single intraoperative dose of intravenous furosemide predicts delayed graft function (DGF) in patients undergoing deceased donor kidney transplant. RESULTS: On an adjusted multiple logistic regression, a single 100 mg dose of intraoperative furosemide after the anastomosis of the renal vessels (FST) predicted the need for RRT at 2 and 6 h post kidney transplantation (KT). Recipient urinary output was measured at 2 and 6 h post furosemide administration. In receiver-operating characteristic (ROC) analysis, the FST predicted DGF with an area-under-the curve of 0.85 at an optimal urinary output cut-off of <600 mls at 6 h with a sensitivity of and a specificity of 83% and 74%, respectively. CONCLUSIONS: The FST is a predictor of DGF post kidney transplant and has the potential to identify patients requiring RRT early after KT. PMID- 29034719 TI - The tailored activity program (TAP) to address behavioral disturbances in frontotemporal dementia: a feasibility and pilot study. AB - PURPOSE: To explore the feasibility of implementing the Tailored Activity Program with a cohort of people with frontotemporal dementia and their carers (dyads). METHODS: The Tailored Activity Program is an occupational therapy based intervention that involves working collaboratively with family carers and prescribes personalized activities for behavioral management in people with dementia. Twenty dyads randomized into the study (Tailored Activity Program: n = 9; Control: n = 11) were assessed at baseline and 4-months. Qualitative analyzes evaluated feasibility and acceptability of the program for the frontotemporal dementia cohort, and quantitative analyzes (linear mixed model analyzes, Spearman's rho correlations) measured the impact of the program on the dyads. RESULTS: The Tailored Activity Program was an acceptable intervention for the frontotemporal dementia dyads. Qualitative analyses identified five themes: "carer perceived benefits", "carer readiness to change", "strategies used by carer to engage person with dementia", "barriers to the Tailored Activity Program uptake/implementation", and "person with dementia engagement". Quantitative outcomes showed an overall reduction of behavioral symptoms (F18.34 = 8.073, p = 0.011) and maintenance of functional performance in the person with dementia (F18.03 = 0.375, p = 0.548). CONCLUSIONS: This study demonstrates the potential for using an activity-based intervention such as the Tailored Activity Program in frontotemporal dementia. Service providers should recognize that while people with frontotemporal dementia present with challenging issues, tailored therapies may support their function and reduce their behavioral symptoms. Implications for rehabilitation The Tailored Activity Program is an occupational therapy based intervention that involves prescribing personalized activities for behavioral management in dementia. The Tailored Activity Program is an acceptable and feasible intervention approach to address some of the unique behavioral and functional impairments inherent in frontotemporal dementia. PMID- 29034720 TI - Investigating the neuroanatomical substrate of pathological laughing and crying in amyotrophic lateral sclerosis with multimodal neuroimaging techniques. AB - OBJECTIVE: Pathological laughing and crying (PLC) is common in several neurological and psychiatric diseases and is associated with a distributed network involving the frontal cortex, the brainstem and cortico-pontine cerebellar circuits. By applying multimodal neuroimaging approach, we examined the neuroanatomical substrate of PLC in a sample of patients with amyotrophic lateral sclerosis (ALS). METHODS: We studied 56 non-demented ALS patients and 25 healthy controls (HC). PLC was measured in ALS using the Center of Neurologic Study Lability Scale (CNS-LS; cutoff score: 13). All participants underwent 3D-T1 weighted and 30-directional diffusion-weighted imaging at 3T. Voxel-based morphometry and tract-based spatial-statistics analysis was used to examine gray matter (GM) and white matter (WM) differences between ALS patients with and without PLC (ALS-PLC and ALS-nonPLC, respectively). Comparisons were restricted to regions with detected differences between ALS and HC, controlling for age, gender, total intracranial volume and depressive symptoms. RESULTS: In regions with significant differences between ALS and HC, ALS-PLC patients showed decreased GM volume in left orbitofrontal cortex, frontal operculum, and putamen and bilateral frontal poles, compared to ALS-nonPLC. They also had decreased fractional anisotropy in left cingulum bundle and posterior corona radiata. WM abnormalities were additionally detected in WM associative and ponto-cerebellar tracts (using a more liberal threshold). CONCLUSIONS: PLC in ALS is driven by both GM and WM abnormalities which highlight the role of circuits rather than isolated centers in the emergence of this condition. ALS is suggested as a useful natural experimental model to study PLC. PMID- 29034721 TI - Biological monitoring of exposure to low concentrations of benzene in workers at a metallurgical coke production plant: new insights into S-phenylmercapturic acid and urinary benzene. AB - CONTEXT: Urinary S-phenylmercapturic acid (SPMA) and benzene (U-Ben) are usually measured at the end of the work shift (ES), although their kinetic of elimination is not clearly known. OBJECTIVE: To investigate SPMA and U-Ben elimination 16 h after the ES, in 93 coke production workers exposed to low benzene concentrations. MATERIALS AND METHODS: Airborne benzene (A-Ben) was measured by passive samplings, while SPMA, U-Ben, methyl-tert-butyl ether (U-MTBE), cotinine (U-Cot) and creatinine were determined on urine samples collected at ES and before the beginning of the next work shift (next BS). RESULTS: Median A-Ben concentrations were 17.2 ug/m3 in the personal and 34.7 ug/m3 in the stationary samplings. SPMA was always detectable, whereas U-Ben was below the limit of quantification in 26.7% of the ES and 35.6% of the next BS samples, and U-MTBE in more than the 80.0% of the samples. At both the sampling times, SPMA and U-Ben showed a positive dependence on personal A-Ben, as well as on creatinine and U Cot values. DISCUSSION AND CONCLUSION: SPMA and U-Ben at the next BS were dependent on the exposure to low benzene concentrations suffered in the previous work shift, prompting a reconsideration of the urine sampling time recommended by the American Conference Governmental Industrial Hygienists (ACGIH). PMID- 29034722 TI - The efficacy of Apaziquone in the treatment of bladder cancer. AB - INTRODUCTION: Bladder cancer is nowadays a common tumor. Non-muscle invasive bladder cancer (NMIBC) has still chances of recurrence and progression in spite of surgery and adjuvant treatments. New therapies are being developed to reduce these percentages with less adverse effects - Apaziquone (EO9) is an example. Areas covered: A literature search has been performed using Pubmed, UpToDate and Google verified information (mainly from Food and Drug Administration and Spectrum Pharmaceutics websites). We have included data from the most representative clinical trials and reviews published. Expert opinion: Apaziquone is considered a promising chemical agent if applied intravesically due mainly to its pharmacodynamics and safety profile. There is evidence for this with respect to adjuvant chemo ablative therapy and as a post-transurethral resection of bladder (TURB) single-dose regimen. As a result, new clinical phase III trials are needed both to evaluate its efficacy as an adjuvant therapy in the spectrum from intermediate- to high-risk non-muscle invasive bladder cancer and to select the most appropriate candidates and treatment schedule. As a conclusion, Apaziquone is a good candidate to become a better alternative as an adjuvant therapy for the treatment of NMIBC in the near future. PMID- 29034723 TI - Response to the Letter to the Editor on: Effect of yoga versus hydrotherapy training on health-related quality of life and exercise capacity in patients with heart failure: A randomized controlled study. PMID- 29034724 TI - Prevention of Mother-to-Child Transmission of HIV in Yaounde: Barrier to Care. AB - Most HIV-infected children in Sub-Saharan Africa are born where programs for the prevention of mother-to-child transmission of HIV (PMTCT) exist but are not universally operational. The expansion of PMTCT programs in Cameroon was among the largest in francophone Africa, but despite highly variable estimates of PMTCT uptake (ranging from 20% to 66%), it is clear that not enough HIV-infected pregnant Cameroonian women benefit from treatment to prevent HIV transmission to their children. The reasons why HIV-infected women in Cameroon do not use treatments to prevent this transmission remain partially unidentified. We conducted a qualitative study of the therapeutic itineraries (treatments taken and motivations) followed by HIV-infected pregnant women in Cameroon to understand the barriers to accessing high-quality PMTCT care. Here we construct the therapeutic itinerary for HIV-infected pregnant women, and identify the barriers at each step. Lack of financial independence, personal support, and empowering information were the primary obstacles at multiple steps. PMID- 29034726 TI - An atypical pseudoaneurysm as complication of prosthetic aortic-valve endocarditis. AB - Endocarditis of a prosthetic heart valve is a life-threatening condition that is associated with high morbidity and mortality. Perivalvular extension in infective endocarditis includes complications such as periannular or intramyocardial abscesses, pseudoaneurysms and fistulae. The incidence of perivalvular extension ranges from 10 to 30% in native valve endocarditis and 30 to 55% in prosthetic aortic-valve endocarditis. Herein, we describe a case of a 66-year-old man who presented endocarditis of a prosthetic aortic valve complicated by infective pseudoaneurysm with localization next to the right coronary sinus of Valsalva. Moreover, we underscore the importance of the diagnostic imaging tools options and surgical timing. PMID- 29034725 TI - Polypharmacy and risk of falls and fractures for patients with HIV infection and substance dependence. AB - Although people with HIV infection (PLWH) are at higher risk of polypharmacy and substance use, there is limited knowledge about potential harms associated with polypharmacy such as falls and fractures in this population. The study objective was to determine whether polypharmacy, as measured by the number and type of medication, is associated with falls and fractures among PLWH and DSM-IV substance dependence in the past year or ever injection drug use (IDU). We identified the number of medications by electronic medical record review in the following categories: (i) systemically active, (ii) non-antiretroviral (non-ARV), (iii) sedating, (iv) non-sedating as well as any opioid medication and any non opioid sedating medication. Outcomes were self-reported (1) fall/accident requiring medical attention and (2) fracture in the previous year. Separate logistic regression models were fitted for medications in each category and each outcome. Among 250 participants, the odds of a fall requiring medical attention were higher with each additional medication overall (odds ratio [OR] 1.12, 95% Confidence Interval [CI] = 1.05, 1.18), each additional non-ARV medication (OR 1.13, 95%CI = 1.06, 1.20), each additional sedating medication (OR 1.36, 95%CI = 1.14, 1.62), and a non-opioid sedating medication (OR 2.89, 95%CI = 1.06, 7.85) but not with an additional non-sedating medication or opioid medication. In receiver operating characteristic (ROC) curve analyses, optimal cutoffs for predicting falls were: >=8 overall and >=2 sedating medications. Odds ratios for fracture in the previous year were OR 1.05, 95%CI = 0.97, 1.13 for each additional medication overall and OR 1.11, 95%CI = 0.89, 1.38 for each additional sedating medication. In PLWH and substance dependence or ever IDU, a higher number of medications was associated with greater odds of having a fall requiring medical attention. The association appeared to be driven largely by sedating medications. Future studies should determine if reducing such polypharmacy, particularly sedating medications, lowers the risk of falls. PMID- 29034727 TI - Examining the impacts of health literacy on healthcare costs. An evidence synthesis. AB - Scholars and practitioners share a significant concern about rising healthcare costs. Health literacy is widely presented as a solution to this momentous issue, paving the way for a more appropriate access to care and therefore, for cost savings. However, to date little is still known about the ultimate effects of better health literacy on healthcare costs. Drawing from the findings of a systematic literature review which ultimately involved 29 papers retrieved from Scopus-Elsevier and PubMed. This manuscript is aimed at shedding light on the relationship between health literacy and healthcare costs. The inadequate ability of patients to understand health information and to navigate the healthcare system was found to be an important predictor of inappropriateness in the access to health care. In addition, people living with problematic health literacy are discouraged to be engaged in the provision of health services and are expected to show poor self-efficacy in dealing with their health-related conditions. From this point of view, poor health literate patients are assumed to be at high risk of exacerbation of their health problems, which in turn contributes in rising healthcare costs. In spite of these findings, both policy makers and practitioners seem to overlook the importance of health literacy. Eventually, the joint intervention on laws, policies, organizational strategies, and practices is crucial to handle the challenges related to limited health literacy. PMID- 29034728 TI - The language of percentages: ranking bodies, shaping realities, and limiting opportunities. AB - PURPOSE: This exploratory study is situated in a critical tradition. It aims to describe and analyse the reliance on percentage assessments of functional capacity among a group of young adults in rehabilitation after serious motor vehicle accidents. METHODS: Qualitative interviews and participant observation. Thematic and theoretically informed analysis was carried out. RESULTS: The concept of percentages played a significant role in the study participants' meaning-making processes as they went through rehabilitation. Percentage scores below 100 made a strong impression on them and were associated with strong emotions. They also strove to prove their scores wrong, often by attempting to function in full time (100%) employment positions. Significantly, many talked as if they "were" their percentage scores. CONCLUSIONS: The utility of percentage logics is to describe parts of that which is full and whole, and we argue that this logic provides for specific and problematic ways of seeing and understanding impairment and disability. When scored on hierarchical scales, functional tests by necessity rank bodies and bodily functions as better or worse while precluding alternative understandings of affected function. Implications for rehabilitation Measurements expressed in numbers and percentages are used in rehabilitation by professionals to depict and convey functional capacities to patients, but this "language" also leaks into the wider context of patients' lives and understandings of themselves. The act of measurement may work to rank bodies in specific and normative ways that are unable to express difference as a valuable instance of human diversity, and may make rehabilitees question whether they are complete human beings. Medical professionals should address and take into consideration the wider consequences of the act of measurement when they provide guidance and support for patients' in their rehabilitation processes. PMID- 29034729 TI - Visualization of plaque distribution in a curved artery: three-dimensional intravascular ultrasound imaging. AB - Intravascular ultrasound (IVUS) imaging provides an excellent tool for evaluation of the type, morphology, extent, and severity of an atheromatous plaque. 3 D IVUS imaging offers additive information pertaining to morphology of the arterial structures and volumetric plaque distributions. A new 3 D IVUS visualization technique was developed to provide 3 D structural information of a curved artery. A virtual 3 D curved arterial phantom consisting of varying cross-sectional shapes, wall thicknesses, and acoustic intensity information was utilized to validate the nonlinear interpolation technique to create intermediary 2 D IVUS images. IVUS imaging was performed for the iliofemoral arterial segment of an atherosclerotic Yucatan miniswine model. These in-vivo IVUS data were utilized for intermediary IVUS image generation and volumetric 3 D IVUS visualization. Smooth transitional changes of cross-sectional shape, wall thickness and grayscale intensity were found between the intermediary images and the original arterial phantom slices. The 3 D IVUS imaging of the unfolded curved iliofemoral artery provided realistic 3 D luminal surface images of the arteries with physiologic grayscale intensity information. This unique 3 D IVUS imaging technique may help with assessment of 3 D plaque distribution across the curved arterial structure, and improve 3 D visualization of atheromatous components. PMID- 29034730 TI - Corydaline inhibits enterovirus 71 replication by regulating COX-2 expression. AB - Enterovirus 71 (EV71) is a huge threat to the worldwide public health and there is no approved antiviral drug for EV71-induced disease therapy. Corydaline exists antiallergic and antinociceptive activities, but the anti-EV71 activity of corydaline is still not reported. In this study, corydaline could suppress the expression of viral structural and non-structural proteins. Furthermore, corydaline inhibits EV71 replication by suppressing the COX-2 expression and the phosphorylation of JNK MAPK and P38 MAPK but not ERK MAPK in vitro. Based on these findings, corydaline could be a potential lead or supplement for the development of new anti-EV71 agents in the future. PMID- 29034731 TI - Effects of omega-3 fatty acids on bone turnover markers in postmenopausal women: systematic review and meta-analysis. AB - AIM: There is conflicting evidence regarding the effects of omega-3 fatty acids on bone turnover markers in postmenopausal women. Thus, we systematically reviewed the efficacy of omega-3 fatty acids by conducting a meta-analysis of available randomized controlled trials. METHODS: PubMed, Embase, Cochrane Library and Scopus were searched in December 2016. The standardized mean difference (SMD) or weighted mean difference (WMD) and the corresponding 95% confidence intervals (CIs) were calculated using a fixed-effects model. RESULTS: Eight trials were included in the present meta-analysis. The pooled findings did not identify significant decreases in bone-specific alkaline phosphatase (SMD -0.08, 95% CI 0.29 to 0.12, p = 0.429) and collagen type I cross-linked C-telopeptide (WMD 0 ng/ml, 95% CI -0.04 to 0.04, p = 0.899). There was a significant decrease in osteocalcin (WMD -0.86 ng/ml, 95% CI -1.68 to -0.04, p = 0.040) as compared with control. CONCLUSION: Omega-3 fatty acids reduced postmenopausal women's serum osteocalcin. Further well-designed studies are needed to verify the effects of omega-3 fatty acids on bone mass density and other bone turnover markers in postmenopausal women. CLINICAL TRIAL REGISTRATION NUMBER: CRD42016053219 ( https://www.crd.york.ac.uk/PROSPERO/ ). PMID- 29034732 TI - Pregnancy and Childbearing Among Young Adults Who Experienced Foster Care. AB - This study explores rates of early pregnancy and parenthood among a sample of young adults ( N = 215), ages 18-22, with a history of foster care. The study also compares the educational attainment, financial resources, and homelessness experiences of young adults who became parents to those who did not. By age 21, 49% of the young women became pregnant, and 33% of young men reported getting someone pregnant. Over a quarter of participants experienced parenthood, which was associated with lower educational attainment, less employment, not having a checking or savings account, and a history of homelessness. Gender moderated the association between parenthood and employment such that males who were parents were more likely than female parents to be employed. Given that these young adults were at risk of early pregnancy and parenthood regardless of emancipation status and across several racial/ethnic groups, the results suggest a need for early pregnancy prevention efforts for all youth with child welfare involvement as well as improving resources and support for those who become young parents. PMID- 29034733 TI - Mothers' Personal and Interpersonal Function as Potential Mediators Between Maternal Maltreatment History and Child Behavior Problems. AB - This study examined maternal depressive symptoms, social support, parenting, and adult attachment as mediators explaining the relation between maternal childhood maltreatment and child behavior in offspring. We assessed a community sample of 96 mother-child dyads. At child age 16 months, mothers self-reported maltreatment history, adult attachment, depressive symptoms, and social support, and maternal sensitivity was assessed via 2 hr of direct behavioral observation. Maternal reports of child behavior were collected at 5 years. Single and parallel mediation models were constructed. Only maternal depressive symptoms mediated the relation between maternal maltreatment history and children's internalizing problems. Maternal sensitivity emerged as a suppressor variable. With respect to the relation between maternal maltreatment history and children's externalizing problems, when entered singly, maternal depressive symptoms, social support, and avoidant attachment emerged as mediators. When examined in parallel, only maternal depressive symptoms and avoidant attachment accounted for unique mediating variance. Findings have implications with respect to important maternal factors that might be targeted to reduce the probability of maladaptive child behavior. PMID- 29034734 TI - When Is a Child's Forensic Statement Deemed Credible? A Comparison of Physical and Sexual Abuse Cases. AB - A large national sample of 4,775 reports of child physical and sexual abuse made in Israel in 2014 was analyzed in order to examine whether assessments of credibility would vary according to abuse type, physical or sexual, and whether child and event characteristics contributing to the probability that reports of abuse would be determined as credible would be similar or different in child physical abuse (CPA) and child sexual abuse (CSA) cases. Results revealed that CPA reports were less likely to be viewed as credible (41.9%) compared to CSA reports (56.7%). Multigroup path analysis, however, indicated equivalence in predicting factors. In a unified model for both types of abuse, salient predictors of a credible judgment were older age, lack of a cognitive delay, and the alleged abusive event being a onetime less severe act. Over and beyond the effects of these factors, abuse type significantly contributed to the prediction of credibility judgments. PMID- 29034735 TI - Failure of Outpatient Management With Different Observation Times After Racemic Epinephrine for Croup. AB - BACKGROUND: Observation is necessary following racemic epinephrine (RE) for patients with croup. The ideal length of this observation period is unclear. OBJECTIVE: To compare the rate of failed outpatient management utilizing different observation times after RE administration for croup. METHODS: We performed a retrospective chart review of children with croup who required RE. Failure of treatment was defined as requiring a second RE treatment and/or returning to the pediatric emergency department for croup symptoms within 24 hours of discharge. RESULTS: The primary analysis considered patients observed between 2.1 and 3 hours compared with those observed for 3.1 to 4 hours. The patients in the 2.1- to 3-hour group had a higher rate of treatment failure (16.7% vs 7.1%, OR = 2.44, P < .01). CONCLUSIONS: Patients requiring RE for croup are more likely to have treatment failure if observed for between 2.1 and 3 hours as opposed to 3.1 to 4 hours. PMID- 29034736 TI - Family History Collection Practices: National Survey of Pediatric Primary Care Providers. AB - While family history (FH) collection is a core responsibility of pediatric primary care providers (PCPs), few details about this practice are known. We surveyed a random national sample of 1200 pediatricians and family medicine physicians about FH collection practices. A total of 86% of respondents (n = 289 pediatricians; n = 152 family medicine physicians) indicated that they collect a FH "always" or "most of the time" with 77% reporting collection at the first visit, regardless of whether it is a health maintenance or problem-focused visit. Less than half ask about relatives other than parents, siblings, or grandparents (36.3%). Among respondents, 42% routinely update the FH at every health maintenance visit while 6% updated FH at every visit. Pediatric PCPs use a variety of methods to collect a FH that is limited in scope and variably updated. Our results suggest that interventions are needed to help pediatric PCPs collect a systematic, efficient, and updated FH. PMID- 29034737 TI - Anti-allergic inflammatory effect of vanillic acid through regulating thymic stromal lymphopoietin secretion from activated mast cells. AB - Vanillic acid, which is well known as a benzoic acid derivative, has been used as a flavouring agent. Currently, we ascertained the therapeutic potential action of vanillic acid on allergic inflammatory reaction in human mast cell line, HMC-1. Treatment with vanillic acid resulted in a significant decrease in levels of thymic stromal lymphopoietin and pro-inflammatory cytokines compared to phorbol 12-myristate 13-acetate and calcium ionophore A23187 (PMACI)-treated HMC-1 cells. In PMACI-stimulated cells, treatment with vanillic acid also dramatically inhibited activities of caspase-1 and nuclear factor-kB (p65). Furthermore, treatment with vanillic acid suppressed phosphorylation of mitogen-activated protein kinases in PMACI-treated HMC-1 cells. Taken together, these findings suggest that vanillic acid has a beneficial effect on allergic inflammatory disorders. PMID- 29034738 TI - Chemodiversity of Nepeta menthoides Boiss. & Bohse. essential oil from Iran and antimicrobial, acetylcholinesterase inhibitory and cytotoxic properties of 1,8 cineole chemotype. AB - The essential oil of Nepeta menthoides Boiss. & Bohse., from Iran, was analysed by GC/MS. Two types of multivariate analyses were done based on the chemical composition of the investigated sample in this study and 12 other samples reported in the literature to show the chemodiversity in essential oil composition. Antimicrobial, acetylcholinesterase inhibitory and cytotoxic activities of the essential oil and its major component were assessed. Twenty-one compounds were identified, representing 96.81% of the total oil and the major constituent was 1,8-cineole (70.06%). Multivariate analyses revealed two chemotypes, i.e. nepetalactone and 1,8-cineole. The essential oil of the sample investigated in this study which was a 1,8-cineole chemotype and 1,8-cineole showed moderate antimicrobial activity and significantly inhibited the activity of acetylcholinesterase enzyme. Cytotoxicity evaluation against three breast cancer cell lines showed a potent inhibitory activity. Further investigations are necessary to confirm the variety in several populations of N. menthoides. PMID- 29034739 TI - Regression of an intramedullary spinal cord metastasis with a checkpoint inhibitor: a case report. AB - Intramedullary spinal cord metastasis is an increasingly common diagnosis in patients with cancer largely owing to new imaging techniques and the increase lifespan of patients with malignant tumors. The diagnosis confers significant morbidity and a poor prognosis. Mainstay palliative treatment options include corticosteroids, fractionated radiotherapy and surgery in select cases. In the modern era of immunotherapy for the treatment of several tumor types, the efficacy of these agents against parenchymal CNS tumors remains unanswered. Here, we report a case of regression of an intramedullary spinal cord metastasis with a checkpoint inhibitor. PMID- 29034741 TI - Anti-inflammatory effect of methanolic extract of Gmelina arborea bark and its fractions against carrageenan induced paw oedema in rats. AB - Gmelina arborea has been traditionally used for treatment of abdominal pain, burning sensation and as stomachic. The anti-inflammatory effect of aqueous and methanol extract of this plant has been studied but detailed investigations on anti-inflammatory activity of G. arborea stem bark are still not available. Therefore, the present study was designed to evaluate the anti-inflammatory activity of methanol extract and its fractions using carrageenan induced paw oedema model. Methanol extract at the dose of 500 mg/kg and its ethyl acetate fraction at 50 mg/kg showed significant reduction in paw oedema in comparison with standard drug. Ethyl acetate fraction was subjected to column chromatography which resulted in isolation of a new flavonoid (GM-01). Anti-inflammatory effect of methanol extract and its fractions can be attributed to the presence of the flavonoid GM-01. Further studies are underway for evaluation of anti-inflammatory effect of GM-01 and identification of active constituents present in ethyl acetate fraction. PMID- 29034740 TI - Efficacy and Safety of the Traditional Herbal Medicine, Gamiguibi-tang, in Patients With Cancer-Related Sleep Disturbance: A Prospective, Randomized, Wait List-Controlled, Pilot Study. AB - BACKGROUND: Sleep disturbance is the second most bothersome symptom in patients with cancer, and it can significantly impair their quality of life. The aim of this study was to investigate the efficacy and safety of the traditional herbal medicine Gamiguibi-tang (GGBT) in patients with cancer-related sleep disturbance. METHODS: We conducted a prospective, randomized, wait-list-controlled, open-label pilot clinical trial on cancer-related sleep disturbance. Patients with cancer experiencing poor sleep quality with a Pittsburgh Sleep Quality Index of at least 6 were randomly assigned to the GGBT and wait-list groups to receive GGBT and conventional care, respectively, for 2 weeks. The primary endpoint was the Insomnia Severity Index (ISI) score. Fatigue, depression, and cognitive impairment were assessed as the secondary endpoints by using the Brief Fatigue Inventory (BFI), Beck Depression Inventory (BDI), and Montreal Cognitive Assessment (MoCA). RESULTS: Thirty participants who met the eligibility criteria were enrolled. Sleep disturbance assessed using the ISI improved significantly more in the GGBT group than in the wait-list group (-5.5 +/- 4.4 vs 0.1 +/- 1.1, P < .001). Fatigue level determined using the BFI also improved significantly more in the GGBT group than in the wait-list group (-0.8 +/- 0.8 vs 0.0 +/- 0.3, P = .002). The BDI and MoCA scores showed no significant changes. Adverse events were reported in two patients in the GGBT group and consisted of mild dyspepsia and mild edema. CONCLUSION: GGBT may be a potential treatment option for cancer related sleep disturbance. Further research is needed to investigate the efficacy and safety of GGBT. PMID- 29034742 TI - Comparison of Outcomes in Patients With Generalized Ligamentous Laxity and Without Generalized Laxity in the Arthroscopic Modified Brostrom Operation for Chronic Lateral Ankle Instability. AB - BACKGROUND: The arthroscopic modified Brostrom operation (MBO) has been frequently used to treat chronic lateral ankle instability (CLAI). However, no reports comparing the clinical outcomes between patients with or without generalized ligamentous laxity (laxity or no laxity, respectively) currently exist. The purpose of this study was to compare the clinical outcomes of the 2 groups with CLAI. METHODS: Between January 2013 and November 2015, arthroscopic MBO was performed on 99 patients with CLAI. Patients were divided into 2 groups: the laxity group (24 ankles) and no laxity group (75 ankles). Generalized ligamentous laxity was defined as a Beighton score of 4 or more points. Evaluation tools included the American Orthopaedic Foot & Ankle Society (AOFAS) hindfoot ankle score, a pain visual analog scale (VAS), and talar tilt angle. RESULTS: The change in talar tilt angle from preoperative to 12 months postoperative was significantly greater in the laxity group (-6.9 +/- 5.2) compared with the no-laxity group (-4.2 +/- 4.2) ( P = .03). The final follow-up AOFAS hindfoot ankle score and pain VAS in both groups showed improvement compared with the preoperative values. CONCLUSION: All groups achieved successful clinical and radiological final follow-up outcomes. Arthroscopic MBO should be considered a reasonable method in patients who have chronic lateral ankle instability, regardless of generalized ligamentous laxity. LEVEL OF EVIDENCE: III, comparative study. PMID- 29034743 TI - Iloneoside: a cytotoxic ditigloylated pregnane glycoside from the leaves of Gongronema latifolium Benth. AB - Gongronema latifolium Benth (Asclepiadaceae) is an edible-green-leafy vegetable with known medicinal value. A chemical investigation of the 80% methanolic extract of the leaves led to the isolation of a new pregnane glycoside: iloneoside (3-O-[6-deoxy-3-O-methyl-beta-D-allopyranosyl-(1->14)-beta-D oleandropyranosyl]-11,12-di-O-tigloyl-17beta-marsdenin), together with four known constituents. Their chemical structures were determined by spectroscopic analysis. The isolates were tested for their in vitro growth inhibitory activity against human leukemia HL-60 cells. Iloneoside was the most active and gave apoptotic response. Molecular docking analysis demonstrated that iloneoside could be accommodated within hot spots of anti-apoptotic protein Bcl-2. These results suggest G. latifolium as a reliable source of potent anticancer compounds. PMID- 29034744 TI - Correction to Oncogenic osteomalacia: role of Ga-68 DOTANOC PET/CT scan in identifying the culprit lesion and its management. PMID- 29034745 TI - Withanolide production by fungal endophyte isolated from Withania somnifera. AB - Withanolides, the secondary metabolite from Withania species is used in Ayurvedic medicine and now proved to have potential use in treating cardiovascular, Alzheimer's disease, etc. Its production in plants varies between genotypes with very low yield. For improved industrial commercialisation, there is a need to increase its production. Endophytic fungi are symbiotically associated with plants and can synthesise the same bioactive compounds and natural products as their host plant. There are no reports available on withanolide-producing (endophytic) fungi. The present study identified an endophytic fungus (Taleromyces pinophilus) from leaves of Withania somnifera which produces withanolides in the medium. The structure of withanolide was confirmed by 1H NMR, LC-MS analyses and quantified by HPLC analysis. The fungus produces high amount of withanolide when compared to leaf and root of W. somnifera. The fungus can be exploited to produce the withanolide to meet its demand. PMID- 29034746 TI - Clinical characteristics of acute fatty liver of pregnancy in a tertiary Indonesian hospital. AB - Acute fatty liver of pregnancy (AFLP) is a rare, often autosomal recessive disorder with a major risk for maternal and perinatal mortality and morbidity. In order to achieve a more favorable outcome, awareness of its clinical signs and symptoms and early recognition are of pivotal importance. Over a 5-year period 18 patients were diagnosed with AFLP (one twin, 19 babies). The most common sign and symptoms were jaundice, hypoglycemia, nausea and vomiting, encephalopathy, and hypertension. Abnormal laboratory test results included: elevated total/ conjugated (direct) bilirubin, AST, ALT, PT, APTT, creatinine, leukocyte count, and hypoalbuminemia. Maternal and fetal mortality rate was high: 66.7% resulted in a maternal death and 57.9% in an intrauterine fetal demise (IUFD). The number of complications was found to correlate with maternal death (p = 0.042). Surviving AFLP patients had <= 3 complications, while patients with > 3 complications on presentation had a high risk of maternal death (OR = 5.0; 95% CI: 0.55-45.4). The presence of hypertension significantly increased the risk of maternal death (OR: 24.5; 95% CI: 1.1-542.8; p = 0.01). The risk of IUFD was primarily related to gestational age at delivery and birth weight. The high rate of jaundice as presenting symptom of AFLP suggests that Indonesian primary maternity care providers may often miss its important earlier signs and symptoms, in particular de-novo onset of nausea and vomiting in late pregnancy. PMID- 29034747 TI - Long-term supplementation of Rhodiola kirilowii extracts during pregnancy and lactation does not affect mother health status. AB - Antibiotics treatment during pregnancy and lactation is problematic. The alternative to the antibiotic treatment is the use of plant-derived supplements, which stimulate immune system to prevent and eliminate bacterial infection. Here, we evaluated the effect of long-term use of Rhodiola kirilowii on the health of mouse mothers. Pregnant mice were fed daily, for whole pregnancy and for 28 days after giving birth, with Rhodiola kirilowii water (RKW) or hydroalcoholic extract (RKW-A) (at 20 mg of extracts/kg). The control group received sterile water. There was no significant change in the total body weight and selected organs weight and in the status of macroscopically evaluated liver, spleen, kidney, brain, and eyes, between the Rhodiola kirilowii groups and the control group. There was also no change in hematological parameters and components of adaptive immunity (level of CD3+, CD4+, CD8+, CD19+, CD335+ cells). Mice fed with RKW extracts exhibited lower percentage of oxidative burst in the granulocytes. In contrast, the supplementation with RKW-A extract caused increase in the percentage of granulocytes in the blood and the percentage of monocytes with oxidative burst. Other studied components of innate immunity were unaffected. Minor effect on the innate immunity and lack of side effects on hematological parameters and components of immunological system of mouse mothers indicates that both water and 50% hydroalcoholic extracts of Rhodiola kirilowii (in concentration 20 mg/kg per day) could be used as an immunostimulators during pregnancy and nursing. However, to fully assess the effects of Rhodiola kirilowii extracts on the mother and offspring health, further studies in mouse and large animal models and clinical studies in humans are necessary. PMID- 29034748 TI - Demographic and neonatal risk factors for childhood asthma in the USA. AB - OBJECTIVE: Asthma is the most common chronic condition diagnosed among children worldwide according to the World Health Organization (WHO). This study evaluated on a longitudinal basis prospectively collected medical records for demographic and neonatal information among United States (US) children diagnosed with childhood asthma in comparison to controls. DESIGN: The Vaccine Safety Datalink (VSD) database was examined to identify cases (n = 5907) diagnosed with International Classification of Disease, ninth revision (ICD-9) healthcare provider diagnosed childhood asthma (493.xx) and controls (n = 11,662). PATIENTS: All cases and controls were health maintenance organization (HMO)-enrolled from birth until diagnosis or sufficient time to ensure that they were unlikely to receive a diagnosis, respectively. MAIN OUTCOME MEASURES: Child's gestational age in weeks at birth, birth weight in grams, maternal age in years at birth, Appearance-Pulse-Grimace-Activity-Respiration (APGAR) score at 1 minute and 5 minutes following birth, gender, and race. RESULTS: The study results revealed childhood asthma was diagnosed significantly more frequently among males than females, and significantly more frequently among minority populations (Black > Hispanic > Native American > Asian) than White populations. Cases diagnosed with childhood asthma had significantly decreased mean values for the following neonatal risk factors: gestational age, maternal age, birth weight, and APGAR scores at 1 and 5 minutes following birth in comparison to controls. CONCLUSIONS: This study offers healthcare providers important demographic and neonatal factors significantly associated with childhood asthma, and should help aid in the early diagnosis and treatment of childhood asthma. PMID- 29034749 TI - Screening of older patients for atrial fibrillation in general practice: Current evidence and its implications for future practice. AB - BACKGROUND: Individuals with atrial fibrillation (AF) face a fivefold increased risk of ischaemic stroke compared with those without the condition. Recent studies suggest that individuals with asymptomatic AF also face an increased risk of ischaemic stroke, but their condition is often not recognized and diagnosed until an ischaemic stroke event has occurred. Identification of individuals with undiagnosed AF at increased risk for stroke is critical in promoting optimal intervention with anticoagulants. OBJECTIVES: In this narrative review, we consider the benefits and limitations of various proposed screening strategies, whether single or multiple time-points, in addition to devices for implementation in the primary care setting. OUTCOMES: Opportunistic screening via pulse palpation with subsequent referral for 12-lead electrocardiogram testing has been shown to cost-effectively identify individuals with asymptomatic AF. Some handheld devices suitable for use in primary care settings are now available and may facilitate screening of large cohorts of individuals considered to be at increased risk of AF, such as those aged >=65 years or those diagnosed with or undergoing monitoring for hypertension. CONCLUSIONS: It was determined that improved detection and diagnosis of AF, combined with appropriate anticoagulation strategies, will be crucial for improving stroke prevention and reducing its associated social and economic costs. PMID- 29034750 TI - Parallel vertical compression sutures to control bleeding in cases of placenta previa and accreta. AB - OBJECTIVE: To evaluate the effectiveness of full-thickness vertical compression suture and intrauterine catheter in cases with placenta previa/accreta. STUDY DESIGN: This study was conducted on Obstetrics and Gynecology emergency unit of Sohag University Hospital. Two longitudinal parallel full-thickness suture was taken using delayed absorbable suture (No. 2 Vicryl...) the entry of needle through anterior wall of lower uterine segment just above the internal os 2-3 cm medial to lateral aspect of lower uterine segment then completely piercing the posterior wall and then return from posterior wall to anterior wall 1-2 cm below incision line of the uterus. Another suture was taken in other side in the same manner. The Foley's catheter was inserted through the incision line into the cervix and balloon was inflated by 20-30 cc saline. RESULTS: Two hundred and seventy-eight cases were included in the research. There were 107 cases without significant bleeding from lower uterine segment and no maneuver was needed. The remaining 171 cases were managed by vertical compression suture and intrauterine Foley's catheter which was successful in 168 cases (98.2%) to stop the bleeding. Only three cases cesarean total hysterectomy was needed. CONCLUSIONS: Vertical lateral compression sutures with inserting inflated balloon of Foley's catheter is an effective method for controlling bleeding in cases of placenta previa/accreta. PMID- 29034751 TI - Less than two versus greater than two hour invasive strategy in non-ST elevation myocardial infarction: a meta-analysis of randomized controlled trials. AB - BACKGROUND: Optimal timing for an invasive strategy in non-ST elevation myocardial infarction (NSTEMI) is unclear. Whether clinical outcomes are improved with a less than two (LT2) compared with greater than two hour (GT2) invasive strategy remains to be determined. We performed a meta-analysis of randomized controlled trials (RCTs) comparing LT2 vs GT2 for NSTEMI. METHODS: A comprehensive literature search for RCTs comparing LT2 vs. GT2 in NSTEMI patients was performed. Three eligible studies consisting of 1,075 patients (LT2: 537, GT2: 538) with NSTEMI were identified. Follow-up ranged from 1 to 12 months. RESULTS: Time from randomization to sheath insertion ranged from 0.5-2.2 and 14.0 85.0 hours in the LT2 and GT2 groups. More percutaneous coronary interventions and fewer coronary artery bypass grafting were performed in the LT2 vs. GT2 group. There was no significant difference in all-cause mortality, myocardial infarction (MI), and major bleeding between the two groups. LT2 was numerically, but not statistically superior to GT2 at preventing recurrent ischemia/urgent revascularization/refractory ischemia. CONCLUSION: Our meta-analysis found no significant difference in outcomes between less than two versus greater than two hours invasive strategy for NSTEMI. The differences observed in the mode of revascularization according to timing of catheterization deserve further study. PMID- 29034752 TI - Effect of basic fibroblast growth factor on radiation-induced oral mucositis in male Syrian hamsters. AB - PURPOSE: Oral mucositis is a frequent and dose-limiting side effect of radiotherapy or chemotherapy in cancer patients. We investigated the effect of basic fibroblast growth factor on radiation-induced oral mucositis in male Syrian hamsters. METHOD: Oral mucositis was induced in male Syrian hamsters by a single dose of 30-Gy irradiation. Eight days after irradiation, treatment with gel containing trafermin (basic fibroblast growth factor) at 1 or 10 MUg up to day-21 was initiated. Re-epithelialization was graded using a six-point scoring system for oral mucositis. Samples of hamster cheek pouches were removed for histopathologic analyses and immunohistochemistry. RESULTS: The oral-mucositis score decreased in a dose-dependent manner upon trafermin treatment. Trafermin (10 MUg) improved oral mucositis significantly compared with vehicle. Histopathology revealed that the degree of re-epithelialization was improved by treatment with trafermin (10 MUg) compared with treatment with vehicle. CONCLUSIONS: Administration of trafermin (10 MUg) can prevent mucosal damage to hamster cheek pouches induced by irradiation. PMID- 29034753 TI - Ataxia telangiectasia syndrome: moonlighting ATM. AB - INTRODUCTION: Ataxia-telangiectasia (A-T) a multisystem disorder primarily characterized by cerebellar degeneration, telangiectasia, immunodeficiency, cancer susceptibility and radiation sensitivity. Identification of the gene defective in this syndrome, ataxia-telangiectasia mutated gene (ATM), and further characterization of the disorder together with a greater insight into the function of the ATM protein have expanded our knowledge about the molecular pathogenesis of this disease. Area covered: In this review, we have attempted to summarize the different roles of ATM signaling that have provided new insights into the diverse clinical phenotypes exhibited by A-T patients. Expert commentary: ATM, in addition to DNA repair response, is involved in many cytoplasmic roles that explain diverse phenotypes of A-T patients. It seems accumulation of DNA damage, persistent DNA damage response signaling, and chronic oxidative stress are the main players in the pathogenesis of this disease. PMID- 29034754 TI - An Unusual Cause of Granulomatous Ileitis - With a Brief History of the Pathology of Typhoid. PMID- 29034755 TI - The alliance with expanding blood volume and correcting anemia is an effective therapeutic measure for the adult anemia patients of acute cerebral infarction. AB - : Purpose/aim of the study: Various factors are believed to be involved in the etiology of cerebral infarction. Anemia has been shown to deteriorate in association with ischemic stroke. However, the exact clinical association between anemia and ischemic stroke still remains unclear. We evaluated the clinical features of adult anemia patients with acute cerebral infarction and seek a better treatment different from the other causes of cerebral infarction, and to provide a reference for the diagnosis and treatment of these anemia patients with acute cerebral infarction. METHODS: Thirty-two adult patients of acute cerebral infarction with anemia were included in this study. A primary discharge diagnosis of acute cerebral infarction with anemia was done, and all subjects were evaluated as retrospective data. The clinical features were analyzed. A chi square test was used to analyze the associations between different variables. Therapeutic interventions and outcomes were analyzed under t-test, compared between the two groups. RESULTS: The NIHSS score in the patients with the administration of EBV/CA (Expanding blood volume and correcting anemia) more lowed than Non-EBV/CA in 7 days and 14 days after initial hospitalization. The mRS score in the patients with the administration of EBV/CA also more lowed than Non-EBV/CA in 14 days. Moreover, the correlation between Hb-serum-level and NIHSS scores in the time of initial hospitalization is negative significantly. CONCLUSIONS: Anemia is associated with increased neuronal damage and deterioration of acute cerebral infarction in the adults. Expanding blood volume and correcting anemia are effective therapeutic measures in the adult patients of acute cerebral infarctions with anemia. PMID- 29034756 TI - A prediction model for early death in non-small cell lung cancer patients following curative-intent chemoradiotherapy. AB - BACKGROUND: Early death after a treatment can be seen as a therapeutic failure. Accurate prediction of patients at risk for early mortality is crucial to avoid unnecessary harm and reducing costs. The goal of our work is two-fold: first, to evaluate the performance of a previously published model for early death in our cohorts. Second, to develop a prognostic model for early death prediction following radiotherapy. MATERIAL AND METHODS: Patients with NSCLC treated with chemoradiotherapy or radiotherapy alone were included in this study. Four different cohorts from different countries were available for this work (N = 1540). The previous model used age, gender, performance status, tumor stage, income deprivation, no previous treatment given (yes/no) and body mass index to make predictions. A random forest model was developed by learning on the Maastro cohort (N = 698). The new model used performance status, age, gender, T and N stage, total tumor volume (cc), total tumor dose (Gy) and chemotherapy timing (none, sequential, concurrent) to make predictions. Death within 4 months of receiving the first radiotherapy fraction was used as the outcome. RESULTS: Early death rates ranged from 6 to 11% within the four cohorts. The previous model performed with AUC values ranging from 0.54 to 0.64 on the validation cohorts. Our newly developed model had improved AUC values ranging from 0.62 to 0.71 on the validation cohorts. CONCLUSIONS: Using advanced machine learning methods and informative variables, prognostic models for early mortality can be developed. Development of accurate prognostic tools for early mortality is important to inform patients about treatment options and optimize care. PMID- 29034757 TI - Nano alterations of membrane structure on both gamma-irradiated and stored human erythrocytes. AB - PURPOSE: Storage and ionizing radiation of human red blood cells (RBC) produce alterations on RBC membranes and modify their normal shape and functionality. We investigated early morphological and biochemical changes in RBC due to those stressing agents at the nanoscale level and their impact on blood quality. MATERIALS AND METHODS: Whole blood samples from healthy donors were gamma irradiated with 15, 25, 35, and 50 Gy. Non-irradiated and non-stored RBC were used as control samples. Irradiated blood samples were stored separately at 4 degrees C and analyzed immediately and after 5 and 13 d. Atomic force microscopy (AFM), osmotic fragility and Raman spectroscopy were used to detect morphological and biochemical changes. RESULTS: RBC function is challenged by both irradiation and storage. The storage procedure caused nanometric variations over the surface of RBC membrane for both irradiated and non-irradiated cells. The membrane of RBC became more fragile, while the biochemical fingerprint of hemoglobin (Hb) remained unaltered. CONCLUSIONS: Our work shows that the irradiation procedure leads to an increase in the number and size of nanovesicles along with the dose. The functionality of RBC can be affected from changes in the roughness, becoming more fragile and susceptible to breakage. PMID- 29034758 TI - Feasibility study on the use of gold nanoparticles in fractionated kilovoltage X ray treatment of melanoma. AB - PURPOSE: Despite the high radioresistance of melanoma, unresectable lesions can be subjected to radiation treatment with the use of gold nanoparticles (AuNPs) as a dose-enhancing agent preferentially loaded on these lesions. The modality of single high-dose treatment has been investigated to confirm its therapeutic efficiency for AuNP-treated melanoma cells. This study explores the feasibility of utilizing AuNPs in fractionated radiation therapy of melanoma for further therapeutic gain. MATERIALS AND METHODS: The responses of human skin melanoma cells to 150-kVp X-ray exposure at 2 and 4 Gy were assessed by quantify gamma H2AX expression and clonogenic survival, with or without 320 MUM of 50 nm AuNP treatment in a culture medium. The influence of AuNPs on cell cycle distribution was observed before irradiation and during 3 d period after irradiation. RESULTS: The AuNP treatment of melanoma cells influenced the cellular response to kilovoltage X-rays to similar extents in terms of the percentage of gamma-H2AX positive cells and the fractional loss of clonogenicity. Without radiation exposure, AuNPs reduced the portion of melanoma cells at the G2/M phase from 11 to 7%. After irradiation, the progression of the melanoma cells treated with AuNPs toward the G2/M phase was more rapid than that of the AuNP-free cells, and the release of the former from the G2/M phase was slower than that of the latter. At 24 h after irradiation with AuNPs, the cell cycle was rearranged in a pattern that increased the vulnerability of the cells to radiation damage. CONCLUSIONS: In addition to the benefit of AuNP treatment to the control of melanoma in single high-dose treatment, further therapeutic gain is expected through fractionated X ray treatment that involves daily exposure. The AuNP-treated melanoma cells of an increased portion in the radiosensitive G2/M phase following a fractionated dose delivery would respond to the next treatment with an enhanced chance of clonogenic death. PMID- 29034759 TI - Tale of rudimentary horn pregnancy: case reports and literature review. AB - Rudimentary horn pregnancy (RHP) is a rare form of pregnancy in a rudimentary uterine horn with a reported incidence of 1 in 76,000 and 1 in 150,000. A significant number of cases is diagnosed only following rupture of the RHP with an estimated maternal mortality rate of 0.5%. Early diagnosis can help in planning management before its rupture and allows for surgical treatment using laparoscopy. PMID- 29034760 TI - Correction to: The Wheelchair Use Confidence Scale: Italian translation, adaptation, and validation of the short form. PMID- 29034761 TI - Knowledge and attitude of mothers regarding infant hearing loss in Changsha, Hunan province, China. AB - OBJECTIVE: The objective of this study was to explore the knowledge and attitude among mothers of newborns regarding infant hearing loss (HL) in Changsha, Hunan province, China. DESIGN: A questionnaire including 18 items was given to mothers. STUDY SAMPLE: A total of 115 mothers participated in the study. RESULTS: Seven risk factors for hearing loss were identified correctly by above 60% of respondents and the top three were prolonged noise (88.7%), high fever (82.6%) and ear discharge (82.6%). Poor knowledge was demonstrated on risk factors jaundice (20.0%), measles (22.6%), convulsion (33.0%) and traditional Chinese medicine (39.1%). Maternal knowledge scores in identification and intervention (2.68 +/- 0.31) was slightly higher than the score in risk factors (2.47 +/- 0.34). Ninety-nine per cent of the mothers expressed the willingness to test baby's hearing soon after birth and concern about hearing. CONCLUSIONS: Mothers were concerned about baby's hearing and the attitude was positive. However, the correct recognition rate towards some risk factors for HL was low. Action needs to be taken to raise awareness about ear and hearing care, prevent HL caused by preventable causes and prompt early identification, early diagnosis and intervention of HL. PMID- 29034762 TI - Exploring the cause of early miscarriage with SNP-array analysis and karyotyping. AB - OBJECTIVE: The aim of this study is to explore the cause of miscarriage, providing risk assessment to guide the next pregnancy. METHODS: Four hundred eighty-four products-of-conception (POC) samples were analyzed by single nucleotide polymorphism (SNP) array, and peripheral blood samples of couples were collected for karyotyping or fluorescence in situ hybridization (FISH) analysis. RESULTS: Four hundred sixty-eight of the 484 (96.7%) fresh POC samples were successfully analyzed using SNP-array. The rate of clinically significant chromosomal abnormalities were 58.3% (274/468), in which rates of aneuploidy, polyploidy, partial aneuploidy, uniparental isodisomy (isoUPD), and pathogenic microdeletion/microduplication were 43.4% (203/468), 8.8% (41/468), 3.6% (17/468), 1.9% (9/48), and 0.9% (4/468), respectively. The percentage of embryonic chromosomal abnormalities significantly increased with maternal age of patients older than 35 years old. Among 468 couples, 12 major chromosomal rearrangements were detected by G-banding, including nine reciprocal translocations, two Robertsonian translocations, and one superfemale. CONCLUSIONS: Chromosome abnormality is the main causes of early miscarriage, and aneuploidies are the most common type of chromosomal abnormalities. Application of SNP array and karyotyping in early miscarriage can provide more genetic information about miscarriage, providing risk assessment to guide the next pregnancy. PMID- 29034763 TI - Pronuclear pattern does not predict morphokinetics behavior in human embryos. AB - The purpose was to investigate the correlation between pronuclei (PN) morphology and morphokinetic behaviors of derived embryos with time lapse monitoring (TLM) in assisted reproduction setting. Over time, PN morphology from PN appearance (PNA) to PN fading (PNF), PNF according to size, contact, number and position of nuclear precursor bodies (NPBs) within each PN and morphokinetics variables, including absolute time points, relative timing parameters, cleavage patterns and arrest rate, were evaluated using TLM. There were insignificant relationship between morphokinetics variables including tBP2, tPNA, tPNF, t2, t3, t4, t5, t6, t7, t8, S1, CC2, S2 and Z scoring according Z1 to Z4 (p > .05). Also, an insignificant relationship was noticed between uneven blastomeres, reverse cleavage embryos and Z scoring (p > .05). However, there were significant correlations between the rates of direct and arbitrary cleavage as well as arrested embryos and Z scores. Combined PN morphology and embryo kinetic evaluation were suggested in assisted reproduction programs. PMID- 29034764 TI - Indeterminate biliary strictures: a simplified approach. AB - INTRODUCTION: Pre-operative evaluation of biliary strictures remains challenging. The dilemma that exists is how to balance the risk of failing to detect malignancy and the potential morbidity caused by unnecessary surgery in patients with benign etiologies. With emerging novel diagnostic modalities, this study aims to assess the efficacy of diagnostic techniques and facilitate a clinical approach to indeterminate biliary strictures. Areas covered: Conventional imaging modalities are crucial in identifying the location of a stricture and are helpful for choosing further diagnostic modalities. Utilization of endoscopic techniques, including endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound (EUS), is key in establishing a diagnosis. The emergence of novel diagnostic modalities, such as fluorescence in-situ hybridization (FISH), peroral cholangioscopy (POC), intraductal endoscopic ultrasound (IDUS) and confocal laser endomicroscopy (CLE), enhance the diagnostic yield in the evaluation of indeterminate biliary strictures. Expert commentary: More reliable and validated visual criteria for differentiating malignancy from benign biliary conditions, utilizing advanced imaging modalities such as POC and CLE, need to be established. It is of significance to further evaluate these novel diagnostic modalities through ongoing trials and to develop a diagnostic algorithm that reconciles cost-effectiveness with diagnostic accuracy. PMID- 29034765 TI - Assessment of maternal cerebral blood flow velocity by transcranial Doppler ultrasound before delivery and in the early postpartum period. AB - OBJECTIVE: This prospective observational study aimed to identify the effects of labor on cerebral hemodynamics by measuring the middle cerebral artery (MCA) blood flow velocity by transcranial Doppler ultrasound (TCD), and the related factors just before delivery and within the 24 h after delivery. METHODS: The study included 35 healthy pregnant women with a gestational age of >37 weeks who were in labor and a control group including healthy, age-matched, nonpregnant women (n = 24). Demographic characteristics and significant clinical information of pregnant women were recorded. The MCA blood flow velocity was assessed by TCD just before and within 24 h after delivery. The parameters assessed by TCD were mean cerebral blood flow velocity (MCBFV), peak systolic velocity (PSV), pulsatility index (PI), resistance index (RI), and systolic/diastolic ratio. RESULTS: There was no significant difference between the pregnant and nonpregnant women regarding age (27 +/- 5 years versus 28 +/- 7 years; p = .751). The MCBFV, PSV, PI, and RI showed a significant increase within the 24 h after delivery as compared with those before delivery. Comparison of the pregnant women with the control group in terms of the values of all parameters related to the MCA blood flow velocity revealed that the values that were significantly low before delivery reached to the level of the control group after delivery Conclusion: The findings of this study demonstrated that the blood flow velocity of the MCA decreased during the late pregnancy period and increased in the early postpartum period to the level similar to that of the nonpregnant group. PMID- 29034766 TI - Saddle seat reduces musculoskeletal discomfort in microsurgery surgeons. AB - BACKGROUND: Microsurgery is a surgical procedure requiring a high degree of precision and is commonly facilitated through the use of an intraoperative microscope. When operating the microscope system, the long-term posture leads to musculoskeletal disorders in surgeons, and seats are commonly employed to diminish these problems. The present study was conducted to evaluate musculoskeletal discomfort during work with a saddle seat in comparison with conventional seats for microscopic work. METHODS: Two types of seats, a saddle and a conventional one, were evaluated for 73 microsurgical surgeons in terms of musculoskeletal discomfort. Corlett and Bishop's body part discomfort scale was used to assess musculoskeletal discomfort before and after working with the seats. RESULTS: The highest amount of discomfort that microsurgical surgeons acquire in the workplace was focused on their neck, shoulders, arms and back. During work with a saddle seat, a significant reduction was found for discomfort values in the neck, shoulder, arm, back, elbow and forearm, as well as the whole body (p < 0.05). CONCLUSION: This study showed that the use of saddle seats provides a more appropriate physical posture at work, and can decrease musculoskeletal discomfort in different parts of the body of microsurgical surgeons. PMID- 29034767 TI - In Search of a Converging Cellular Mechanism in Nanotoxicology and Nanomedicine in the Treatment of Cancer. AB - Multiple applications of nanomaterials have raised concern with regard to their toxicity. With increasing research into nanomaterial safety, mechanisms involved in the toxic effects of nanomaterials have begun to emerge. The importance of nanomaterial-induced lysosomal membrane permeabilization through overloading or direct damage of the lysosomal compartment, resulting in the blockade of autophagosome-lysosome fusion and autophagy dysfunction, as well as inflammasome activation were cited as emerging mechanisms of nanomaterial toxicity. It has recently been proposed that these very mechanisms leading to nanomaterial toxicity may be utilized in nanotherapeutics. This review discusses these nanomaterial-induced mechanisms in detail and how it has been exploited in cancer research. This review also addresses certain considerations that need to be kept in mind when using nanomaterials in therapeutics. PMID- 29034768 TI - Effects on Cancellous Bone in the Metaphysis. AB - Cancellous bone has high metabolic activity compared to many other bone compartments and can be affected not only by changes in physeal activity but also by perturbations in homeostasis caused by changes in physiology or on-target pharmacology. Examples of several types of resulting morphologic findings were presented; if known, the pathways causing morphologic changes were discussed. PMID- 29034769 TI - Skeletal Muscle Toolbox. AB - Evaluation of skeletal muscle frequently combines morphologic and morphometric techniques. As is the case with many organ systems, skeletal muscle has limited responses to insult or injury. Over the past several years, crucial interactions between skeletal muscle, bone, and the nervous system have been described. The aim of this lecture was to give attendees the necessary background information in basic skeletal muscle morphology, important species differences, introduction to skeletal muscle biomarkers, approaches to morphologic and morphometric evaluation, and examples of background findings and typical responses of skeletal muscle to insult or injury. PMID- 29034770 TI - Association with polymorphic marmoset cytochrome P450 2C19 of in vivo hepatic clearances of chirally separated R-omeprazole and S-warfarin using individual marmoset physiologically based pharmacokinetic models. AB - 1. Simulated clearances of R-warfarin and efavirenz were recently reported for individual cynomolgus monkeys genotyped for cytochrome P450 2C19 and 2C9, respectively. To expand and verify this modeling procedure, simulations of R/S omeprazole and R/S-warfarin clearances after oral administrations in individual marmosets were performed using individual simplified physiologically based pharmacokinetic (PBPK) modeling consisting of gut, liver and central compartments. 2. Pharmacokinetics of R/S-omeprazole were chirally determined using the previously reported plasma microsamples in this study. The areas under the plasma concentration/time curves (AUC) of R-omeprazole and S-warfarin, but not S-omeprazole and R-warfarin, after oral administrations in the P450 2C19 homozygous mutant group were significantly higher than those in the wild-type group. These modeled hepatic intrinsic clearances were also significantly associated with the marmoset P450 2C19 genotypes. Other parameter values, e.g. absorption rate constants or systemic circulation volumes, were not likely determining factors. 3. The reported individual AUC values measured in 4-6 marmosets after oral R-omeprazole and S-warfarin administrations were significantly correlated with the AUC values predicted using the PBPK models after virtual administrations. 4. This study indicates that clearances of R omeprazole, S-warfarin and related medicines associated with polymorphic P450 2C19 in individual marmosets can be simulated using simplified individual PBPK models. PMID- 29034771 TI - Genome-wide analysis of Epstein-Barr virus identifies variants and genes associated with gastric carcinoma and population structure. AB - Epstein-Barr virus is a ubiquitous virus and is associated with several human malignances, including the significant subset of gastric carcinoma, Epstein-Barr virus-associated gastric carcinoma. Some Epstein-Barr virus-associated diseases are uniquely prevalent in populations with different geographic origins. However, the features of the disease and geographically associated Epstein-Barr virus genetic variation as well as the roles that the variation plays in carcinogenesis and evolution remain unclear. Therefore, in this study, we sequenced 95 geographically distinct Epstein-Barr virus isolates from Epstein-Barr virus associated gastric carcinoma biopsies and saliva of healthy donors to detect variants and genes associated with gastric carcinoma and population structure from a genome-wide spectrum. We demonstrated that Epstein-Barr virus revealed the population structure between North China and South China. In addition, we observed population stratification between Epstein-Barr virus strains from gastric carcinoma and healthy controls, indicating that certain Epstein-Barr virus subtypes are associated with different gastric carcinoma risks. We identified that the BRLF1, BBRF3, and BBLF2/BBLF3 genes had significant associations with gastric carcinoma. LMP1 and BNLF2a genes were strongly geographically associated genes in Epstein-Barr virus. Our study provides insights into the genetic basis of oncogenic Epstein-Barr virus for gastric carcinoma, and the genetic variants associated with gastric carcinoma can serve as biomarkers for oncogenic Epstein-Barr virus. PMID- 29034772 TI - Opa-interacting protein 5 modulates docetaxel-induced cell death via regulation of mitophagy in gastric cancer. AB - Damage to mitochondria induces mitophagy, a cellular process that is gaining interest for its therapeutic relevance to a variety of human diseases. However, the mechanism underlying mitochondrial depolarization and clearance in mitophagy remains poorly understood. We previously reported that mitochondria-induced cell death was caused by knockdown of Neisseria gonorrhoeae opacity-associated interacting protein 5 in gastric cancer. In this study, we show that Neisseria gonorrhoeae opacity-associated-interacting protein 5 loss and gain of function modulates mitophagy induced by treatment with docetaxel, a chemotherapy drug for gastric cancer. The activation of mitophagy by Neisseria gonorrhoeae opacity associated-interacting protein 5 overexpression promoted cell survival, preventing docetaxel-induced mitochondrial clearance. Conversely, short interfering RNA-mediated knockdown of Neisseria gonorrhoeae opacity-associated interacting protein 5 accelerated docetaxel-induced apoptosis while increasing mitochondrial depolarization, reactive oxygen species, and endoplasmic reticulum stress and decreasing adenosine triphosphate production. We also found that the mitochondrial outer membrane proteins mitofusin 2 and phosphatase and tensin homolog-induced putative kinase 1 colocalized with Neisseria gonorrhoeae opacity associated-interacting protein 5 in mitochondria and that mitofusin 2 knockdown altered Neisseria gonorrhoeae opacity-associated-interacting protein 5 expression. These findings indicate that Neisseria gonorrhoeae opacity-associated interacting protein 5 modulates docetaxel-induced mitophagic cell death and therefore suggest that this protein comprises a potential therapeutic target for gastric cancer treatment. PMID- 29034773 TI - Substrate-dependent effects of molecular-targeted anticancer agents on activity of organic anion transporting polypeptide 1B1. AB - 1. Organic anion-transporting polypeptide 1B1 (OATP1B1) plays an important role in the hepatic uptake of a broad range of substrate drugs. In vitro experiments show that molecular-targeted agents do not always have similar effects on OATP1B1 activity. 2. The purpose of this study was to clarify whether the effects of molecular-targeted agents on OATP1B1 are substrate-dependent. We used OATP1B1 transfected cells to compare the effects of molecular-targeted agents on OATP1B1 mediated uptake of fluorescein (FL), 2',7'-dichlorofluorescein (DCF), atorvastatin, SN-38 and valsartan. 3. Cabozantinib, cediranib, neratinib, pazopanib, regorafenib, sorafenib and tivantinib did not affect or only slightly affected OATP1B1-mediated substrate uptake. Nilotinib and lenvatinib moderately and strongly inhibited OATP1B1-mediated substrate uptake, respectively. In contrast, afatinib stimulated OATP1B1-mediated uptake of FL and SN-38, ceritinib stimulated that of valsartan, and nintedanib stimulated that of FL and valsartan. In addition, the effects of afatinib, ceritinib and nintedanib on OATP1B1 activity differed markedly depending on the type of substrate. Afatinib, ceritinib and nintedanib had a substrate-dependent effect on OATP1B1 activity. 4. We conclude that the evaluation of OATP1B1 activity using only a single probe substrate for some molecular-targeted agents may lead to a faulty understanding of their mechanisms of drug interactions. PMID- 29034774 TI - Mechanical enhancement and in vitro biocompatibility of nanofibrous collagen chitosan scaffolds for tissue engineering. AB - The collagen-chitosan complex with a three-dimensional nanofiber structure was fabricated to mimic native ECM for tissue repair and biomedical applications. Though the three-dimensional hierarchical fibrous structures of collagen-chitosan composites could provide more adequate stimulus to facilitate cell adhesion, migrate and proliferation, and thus have the potential as tissue engineering scaffolding, there are still limitations in their applications due to the insufficient mechanical properties of natural materials. Because poly (vinyl alcohol) (PVA) and thermoplastic polyurethane (TPU) as biocompatible synthetic polymers can offer excellent mechanical properties, they were introduced into the collagen-chitosan composites to fabricate the mixed collagen/chitosan/PVA fibers and a sandwich structure (collagen/chitosan-TPU-collagen/chitosan) of nanofiber in order to enhance the mechanical properties of the nanofibrous collagen chitosan scaffold. The results showed that the tensile behavior of materials was enhanced to different degrees with the difference of collagen content in the fibers. Besides the Young's modulus had no obvious changes, both the break strength and the break elongation of materials were heightened after reinforced by PVA. For the collagen-chitosan nanofiber reinforced by TPU, both the break strength and the Young's modulus of materials were heightened in different degrees with the variety of collagen content in the fibers despite the decrease of the break elongation of materials to some extent. In vitro cell test demonstrated that the materials could provide adequate environment for cell adhesion and proliferation. All these indicated that the reinforced collagen chitosan nanofiber could be as potential scaffold for tissue engineering according to the different mechanical requirements in clinic. PMID- 29034775 TI - Risk factors of early recurrence after curative hepatectomy in hepatocellular carcinoma. AB - Early recurrence is common after curative hepatectomy for hepatocellular carcinoma and is associated with poor prognosis. This study aimed to identify risk factors of early recurrence after curative hepatectomy in hepatocellular carcinoma. Overall, 63 patients who underwent curative hepatectomy for hepatocellular carcinoma were enrolled. Patients were divided into the early recurrence group, who developed recurrence within 12 months after hepatectomy (n = 10), and the non-early recurrence group (n = 53). Clinicopathological factors of early recurrence were retrospectively analyzed. Among the 63 patients, 10 (15.9%) patients experienced early recurrence. Univariate analysis showed tumor necrosis (p = 0.012), level of PIVKA-II (prothrombin induced by vitamin K absence or antagonist-II; p = 0.002), and microvascular invasion (p = 0.029) to be associated with early recurrence. By multivariate analysis, there were significant differences in high PIVKA-II (p < 0.001) and tumor necrosis (p = 0.012) in patients with early recurrence. The optimal cutoff values of PIVKA-II and tumor necrosis were 46 mAU/mL and 3% of total tumor volume, respectively. Patients with a high preoperative PIVKA-II level and extent of tumor necrosis, which are independent risk factors for early recurrence, should be actively treated and monitored closely after hepatectomy. PMID- 29034776 TI - External Versus Two Different Internal Foci of Attention in Long-Distance Throwing. AB - The present study examined the influence of attentional focus on performance during a long-distance throwing task. Twelve participants executed three maximum effort, long-distance baseball throwing attempts in three focus conditions: internal focus on wrist flexion (wrist internal focus), internal focus on the separation between pelvis and upper torso orientations (torso internal focus), and external focus on the ball path (external focus). Compared with the external focus and torso internal focus conditions, performance was poorer in the wrist internal focus condition. Performances were not different in the torso internal and external focus conditions. In addition, attentional focus affected the release angle of the ball but not its initial velocity. Our results reveal that the body part targeted for internal focus of attention and the forcefulness of the motor activity can be as important to motor performance as whether the attention is internal or external. PMID- 29034777 TI - Effects of matrix metalloproteinase inhibitor doxycycline and CD147 antagonist peptide-9 on gallbladder carcinoma cell lines. AB - Gallbladder carcinoma is the most common and aggressive malignancy of the biliary tree and highly expresses CD147, which is closely related to disease prognosis in a variety of human cancers. Doxycycline exhibited anti-tumor properties in many cancer cells. CD147 antagonist peptide-9 is a polypeptide and can specifically bind to CD147. The effect of these two drugs on gallbladder cancer cells has not been studied. The aim of this study is to investigate the effect of doxycycline and antagonist peptide-9 on gallbladder carcinoma cells and the possible mechanism of inhibition on cancer cell of doxycycline. To investigate the effects of doxycycline and antagonist peptide-9 on gallbladder carcinoma cells (GBC-SD and SGC-996), cell proliferation, CD147 expression, and early-stage apoptosis rate were measured after treated with doxycycline. Matrix metalloproteinase-2 and matrix metalloproteinase-9 activities were measured after treated with different concentrations of doxycycline, antagonist peptide-9, and their combination. The results demonstrated that doxycycline inhibited cell proliferation, reduced CD147 expression level, and induced an early-stage apoptosis response in GBC-SD and SGC 996 cells. The matrix metalloproteinase-2 and matrix metalloproteinase-9 activities were inhibited by antagonist peptide-9 and doxycycline, and the inhibitory effects were enhanced by combined drugs in gallbladder carcinoma cell lines. Taken together, doxycycline showed inhibitory effects on gallbladder carcinoma cell lines and reduced the expression of CD147, and this may be the mechanism by which doxycycline inhibits cancer cells. This study provides new information and tries to implement the design of adjuvant therapy method for gallbladder carcinoma. PMID- 29034781 TI - Point-of-Care Testing in Community Pharmacies: Keys to Success From Pennsylvania Pharmacists. AB - BACKGROUND: Clinical Laboratory Improvement Amendments (CLIA)-waived tests allow for quick, accurate, and noninvasive laboratory testing. Community pharmacists utilize CLIA-waived tests to provide clinical services such as point-of-care (POC) testing to help manage chronic disease and acute illness. OBJECTIVE: To identify key themes in the successful delivery of POC testing services by community pharmacists in Pennsylvania. RESULTS: An initial search identified 51 Pennsylvania pharmacies with a CLIA waiver. Of these, five independent pharmacies met inclusion criteria, three of which completed interviews. The remaining 38 chain pharmacies were represented by three interviews. In total, five key themes were identified as essential to POC testing services: (1) utilize state resources and professional connections to navigate federal and state regulations, (2) establish relationships with physician partners (3) offer tests that are meaningful to patients and their physicians, (4) evaluate financial impact, workflow adaptations, and marketing approaches when implementing POC testing services, and (5) focus on individualized attention and convenience of community pharmacy-based POC testing to improve patient satisfaction. CONCLUSION: Successful POC testing services in community pharmacy practice rely on utilizing resources, partnering with known physicians, selecting meaningful tests for patients, and analyzing finances, workflow, and marketing to provide individualized attention and convenient care. PMID- 29034780 TI - Mortality in endovascular and open abdominal aneurysm repair - trends in Germany. AB - BACKGROUND: We analysed trends in mortality of endovascular (EVAR) and open aortic repair (OAR) in patients hospitalized for abdominal aortic aneurysms (AAA) in Germany from 2005 to 2015. PATIENTS AND METHODS: We used national statistics published by the Federal Statistical Office in Germany to calculate mortality rate of patients hospitalized with ruptured (rAAA, n = 2,448 in 2005, n = 2,180 in 2015) and non-ruptured (iAAA, n = 11,626 in 2005, n = 14,205 in 2015) AAA. RESULTS: Considering only those who were treated with EVAR or OAR, treatment rates of iAAA with EVAR increased to 78.2 % in males and 72.6 % in females in 2015 and treatment rates of rAAA to 36.9 % and 40.7 %, respectively. In cases with iAAA, death rates associated with EVAR decreased in males from 2.1 to 1.1 % (p = 0.0005) in the period from 2005 to 2015 but not in females (1.8 % in 2005 and 2.3 % in 2015, p = 0.8511). Similar trends are seen in cases with rAAA (males 30.1 % and 24 %, p = 0.1034, females 36.4 to 37.3 %, p = 0.8511). Death rates associated with OAR increased in males from 4.7 % in 2005 to 5.7 % in 2015 (p = 0.0103) and tended to increase in females from 6.8 to 8.2 % (p = 0.1476). In cases of rAAA, there were no changes. EVAR treatment rates increased in cases with iAAA in both genders with age, as well as in males with rAAA, but not in females. OAR associated death rates increased with age in rAAA (from around 30 % in the sixth/seventh decade of life to almost 80 % in cases with patients over the age of 90) and in iAAA (from 1.1 to 20 %). CONCLUSIONS: The general increase in EVAR procedures in males and females hospitalized for rAAA and iAAA went along with a decrease in in-hospital mortality in males treated with EVAR for iAAA only and an increasing mortality in males treated with OAR for iAAA. PMID- 29034782 TI - The Comparative Epidemiology of Pediatric Severe Sepsis. AB - OBJECTIVE: To determine whether the coding strategies used to identify severe sepsis in administrative data sets could identify cases with comparable case mix, hospitalization characteristics, and outcomes as a cohort of children diagnosed with severe sepsis using strict clinical criteria. METHODS: We performed a retrospective cohort study using data from 2005 to 2011 from the New York and Florida State Inpatient Databases, available from the US Healthcare Cost and Utilization Project. We compared 4 coding strategies: the single International Classification of Diseases, Ninth Revision, Clinical Modification ( ICD-9-CM) codes for (1) severe sepsis or (2) septic shock, and the algorithms developed by (3) Angus et al or (4) Martin et al, which use a combination of ICD-9-CM codes for infection and organ dysfunction. We compared the cases identified by each strategy with each other and with children enrolled in the REsearching severe Sepsis and Organ dysfunction in children: a gLobal perspectiVE (RESOLVE) trial. RESULTS: The Angus criteria was 9 times larger (n = 23 995) than the smallest cohort, identified by the "septic shock" code (n = 2 601). Cases identified by the Angus and Martin strategies had low mortality rates, while the cases identified by the "severe sepsis" and "septic shock" codes had much higher mortality at all time points (eg, 28-day mortality of 4.4% and 7.4% vs 15.4% and 16.0%, respectively). Mortality in the "severe sepsis" and "septic shock" code cohorts was similar to that presented in the RESOLVE trial. CONCLUSIONS: The ICD 9-CM codes for "severe sepsis" and "septic shock" identify smaller but higher acuity cohorts of patients that more closely resemble the children enrolled in the largest clinical trial of pediatric severe sepsis to date. PMID- 29034783 TI - Cerebral and Limb Tissue Oxygenation During Peripheral Venoarterial Extracorporeal Life Support. AB - Femoral access in extracorporeal life support (ECLS) has been associated with regional variations in arterial oxygen saturation, potentially predisposing the patient to ischemic tissue damage. Current monitoring techniques, however, are limited to intermittent bedside evaluation of capillary refill among other factors. The aim of this study was to assess whether cerebral and limb regional tissue oxygen saturation (rSO2) values reflect changes in various patient-related parameters during venoarterial ECLS (VA-ECLS). This retrospective observational study included adults assisted by femorofemoral VA-ECLS. Bifrontal cerebral and bilateral limb tissue oximetry was performed for the entire duration of support. Hemodynamic data were analyzed parallel to cerebral and limb rSO2. A total of 23 patients were included with a median ECLS duration of 5 [1-20] days. Cardiac arrhythmias were observed in 12 patients, which was associated with a decreased mean rSO2 from 61%+/-11% to 51%+/-10% during atrial fibrillation and 67%+/-9% to 58%+/-10% during ventricular fibrillation ( P<0.001 for both). A presumably sudden increase in cardiac output due to myocardial recovery (n=8) resulted in a significant decrease in mean cerebral rSO2 from 73%+/-7% to 54%+/-6% and from 69%+/-9% to 53%+/-8% for the left and right cerebral hemisphere, respectively ( P=0.012 for both hemispheres). Also, right radial artery partial gas pressure for oxygen decreased from 15.6+/-2.8 to 8.3+/-1.9 kPa ( P=0.028). No differences were found in cerebral desaturation episodes between patients with and without neurologic complications. In six patients, limb rSO2 increased from on average 29.3+/-2.7 to 64.0+/-5.1 following insertion of a distal cannula in the femoral artery ( P=0.027). Likewise, restoration of flow in a clotted distal cannula inserted in the femoral artery was necessary in four cases and resulted in increased limb rSO2 from 31.3+/-0.8 to 79.5+/-9.0; P=0.068. Non-invasive tissue oximetry adequately reflects events influencing cerebral and limb perfusion and can aid in monitoring tissue perfusion in patients assisted by ECLS. PMID- 29034784 TI - Religious affiliation at time of death - Global estimates and projections. AB - AIMS: Religious affiliation influences societal practices regarding death and dying, including palliative care, religiously acceptable health service procedures, funeral rites and beliefs about an afterlife. We aimed to estimate and project religious affiliation at the time of death globally, as this information has been lacking. METHODS: We compiled data on demographic information and religious affiliation from more than 2500 surveys, registers and censuses covering 198 nations/territories. We present estimates of religious affiliation at the time of death as of 2010, projections up to and including 2060, taking into account trends in mortality, religious conversion, intergenerational transmission of religion, differential fertility, and gross migration flows, by age and sex. RESULTS: We find that Christianity continues to be the most common religion at death, although its share will fall from 37% to 31% of global deaths between 2010 and 2060. The share of individuals identifying as Muslim at the time of death increases from 21% to 24%. The share of religiously unaffiliated will peak at 17% in 2035 followed by a slight decline thereafter. In specific regions, such as Europe, the unaffiliated share will continue to rises from 14% to 21% throughout the period. CONCLUSIONS: Religious affiliation at the time of death is changing globally, with distinct regional patterns. This could affect spatial variation in healthcare and social customs relating to death and dying. PMID- 29034786 TI - Classifying head, face and oral pain. PMID- 29034787 TI - Role of adipocytokines in the pathophysiology of migraine: A cross-sectional study. PMID- 29034785 TI - Treatment history and antimicrobial susceptibility results for Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni isolates from bovine respiratory disease cases submitted to the Iowa State University Veterinary Diagnostic Laboratory from 2013 to 2015. AB - Bovine respiratory disease is the most costly disease facing the cattle industry. Increasing resistance to antimicrobial treatment has been presented as a significant contributing factor, often through summarized susceptibility testing data. We assessed the relationship between previous antimicrobial treatment and antimicrobial susceptibility results from isolates of Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni cultured from bovine respiratory cases submitted to the Iowa State University Veterinary Diagnostic Laboratory from 2013 to 2015. Antimicrobial susceptibility data from 1,251 bacterial isolates were included for analysis. More bacterial isolates from cattle that received antimicrobial treatment showed resistance compared to isolates from untreated cattle, and the percentage of resistant isolates increased as the number of antimicrobial treatments increased. Resistance to enrofloxacin, spectinomycin, tilmicosin, and tulathromycin was present in >75% of M. haemolytica isolates from cattle that had received 3 or more antimicrobial treatments; resistance to each of those 4 antimicrobials was present in <=10% of M. haemolytica isolates from untreated cattle. Similar but less dramatic trends were apparent for isolates of P. multocida and H. somni. The percentage of multi drug resistant bacterial isolates also increased with the number of treatments. Results of our study suggest that previous antimicrobial treatment may have a profound effect on antimicrobial susceptibility testing. Summarized susceptibility results from diagnostic laboratories should not be used to make generalized statements regarding trends in antimicrobial resistance without providing context regarding antimicrobial treatment history. PMID- 29034788 TI - Treatment of acute migraine attacks in children with analgesics on the World Health Organization Essential Medicines List: A systematic review and GRADE evidence synthesis. AB - Background The World Health Organization Essential Medicines List (WHO EML) contains two analgesics for treatment of acute migraine attacks in children, ibuprofen and paracetamol. Methods The Embase, CDSR, CENTRAL, DARE and MEDLINE databases were searched up to 18 April 2017. We analyzed randomized controlled trials (RCTs) and systematic reviews (SRs) that investigate the efficacy and safety of ibuprofen or paracetamol for treatment of acute migraine attacks in children. We conducted meta-analysis and assessments of evidence with GRADE, Cochrane risk of bias tool, and AMSTAR. Results Three RCTs (201 children) and 10 SRs on ibuprofen and/or paracetamol for acute migraine attacks in children were included. Meta-analysis indicated that ibuprofen was superior to placebo for pain free at 2 h or pain relief at 2 h, without difference in adverse events. There were no differences between paracetamol and placebo, or ibuprofen and paracetamol. Ten SRs that analyzed various therapies for migraine in children were published between 2004 and 2016, with discordant conclusions. Conclusion Limited data from poor quality RCTs indicate that ibuprofen and paracetamol might be effective analgesics for treating migraine attacks in children. Inclusion of ibuprofen and paracetamol as antimigraine medicines for children in the WHO EML is supported by indirect evidence from studies in adults. PMID- 29034789 TI - A midterm report card for pulmonary embolism response teams. PMID- 29034791 TI - Point-of-care testing in the pharmacy: how is the field evolving? PMID- 29034790 TI - Minimal toxicity after proton beam therapy for prostate and pelvic nodal irradiation: results from the proton collaborative group REG001-09 trial. AB - BACKGROUND: Proton beam therapy (PBT) reduces normal organ dose compared to intensity modulated radiation therapy (IMXT) for prostate cancer patients who receive pelvic radiation therapy. It is not known whether this dosimetric advantage results in less gastrointestinal (GI) and genitourinary (GU) toxicity than would be expected from IMXT. MATERIAL AND METHODS: We evaluated treatment parameters and toxicity outcomes for non-metastatic prostate cancer patients who received pelvic radiation therapy and enrolled on the PCG REG001-09 trial. Patients who received X-ray therapy and/or brachytherapy were excluded. Of 3210 total enrolled prostate cancer patients, 85 received prostate and pelvic radiation therapy exclusively with PBT. Most had clinically and radiographically negative lymph nodes although 6 had pelvic nodal disease and one also had para aortic involvement. Pelvic radiation therapy was delivered using either 2 fields (opposed laterals) or 3 fields (opposed laterals and a posterior beam). Median pelvic dose was 46.9 GyE (range 39.7-56) in 25 fractions (range 24-30). Median boost dose to the prostate +/- seminal vesicles was 30 GyE (range 20-41.4) in 16 fractions (range 10-24). RESULTS: Median follow-up was 14.5 months (range 2.8 49.2). Acute grade 1, 2, and 3 GI toxicity rates were 16.4, 2.4, 0%, respectively. Acute grade 1, 2, and 3 GU toxicity rates were 60, 34.1, 0%, respectively. CONCLUSIONS: Prostate cancer patients who receive pelvic radiation therapy using PBT experience significantly less acute GI toxicity than is expected using IMXT. Further investigation is warranted to confirm whether this favorable acute GI toxicity profile is related to small bowel sparing from PBT. PMID- 29034792 TI - Medical resource utilization and costs for total hip arthroplasty: benchmarking an anterior approach technique in the Medicare population. AB - AIMS: The anterior approach (AA) for total hip arthroplasty (THA) is associated with more rapid recovery when compared to traditional approaches. The purpose of this study was to benchmark healthcare resource utilization and costs for patients with THA via AA relative to matched patients. MATERIALS AND METHODS: This study queried Medicare claims data (2012-2014) to identify patients who received THA via an AA from experienced surgeons, and matched these patients to a control cohort (all THA approaches). Direct and propensity-score matching were employed to maximize similarity between patients and hospitals in the two cohorts. Hospital length of stay (LOS), the proportion of patients discharged to home or home health, and post-acute claim payments during the 90-day episode were assessed. Generalized estimating equations were applied to control for imbalances between the cohorts and clustering of outcomes within hospitals. RESULTS: A total of 1,794 patients were included after patient matching. Patients who received AA had significantly lower mean hospital LOS vs patients in the control group (2.06 +/- 1.36 vs 2.98 +/- 1.58 days, p < .0001). The adjusted proportion of patients discharged to home was nearly 20 percentage points higher in the AA cohort vs the control cohort (87.3% vs 68.7%, p < .0001). Post-acute claim payments for AA patients were nearly 50% lower than those for control patients ($4,139 vs $7,465, p < .0001). CONCLUSION: AA patients had significantly lower post-acute care resource use when compared to control patients. Further research is warranted to evaluate the cost effectiveness of AA among surgeons of varying experience levels. PMID- 29034794 TI - Transmissions. PMID- 29034796 TI - No funeral bells: Public reason in a 'post-truth' age. AB - The label 'post-truth' signals for many a troubling turn away from principles of enlightened government. The word 'post', moreover, implies a past when things were radically different and whose loss should be universally mourned. In this paper, we argue that this framing of 'post-truth' is flawed because it is ahistorical and ignores the co-production of knowledge and norms in political contexts. Debates about public facts are necessarily debates about social meanings, rooted in realities that are subjectively experienced as all encompassing and complete, even when they are partial and contingent. Facts used in policy are normative in four ways: They are embedded in prior choices of which experiential realities matter, produced through processes that reflect institutionalized public values, arbiters of which issues are open to democratic contestation and deliberation, and vehicles through which polities imagine their collective futures. To restore truth to its rightful place in democracy, governments should be held accountable for explaining who generated public facts, in response to which sets of concerns, and with what opportunities for deliberation and closure. PMID- 29034793 TI - Patient's Utilization of Primary Care: A Profile of Clinical and Administrative Reasons for Visits in Israel. AB - BACKGROUND: Data on patients' utilization of health services in primary care is relevant to planning healthcare. Data may be collected by numerous methods, but obtaining a true picture of content of care has practical difficulties. OBJECTIVES: To describe patient's reasons for visits to primary care physicians (PCPs) as presented by the patient; and to examine the effect of patient-, doctor and clinic-related variables on the reasons for the visit. METHODS: Visits to PCPs were observed by peer doctors during 2014, at primary care clinics in Israel. Data were collected on characteristics of physicians, patients, clinics, type of visit, and reasons for visit. RESULTS: Eleven physicians from 7 clinics participated in the study. Data were gathered from 327 visits. Patients visited for a wide variety of reasons. The most common acute complaints were upper respiratory symptoms, gastrointestinal, skin symptoms, and back and neck problems. The most common chronic complaints were hypertension and diabetes. Patients presented with administrative requests in 36% of visits; 15% were for solely administrative issues. A total of 26.6% of visits included requests for blood tests or discussion of tests. Patients initiated preventive medicine issues in 5% of visits. Visits for chronic problems were directly correlated with patient age and the extent of acquaintance with the physician. Gender-associated differences were also found: women were more likely to visit for a new medical problem than men, while men were more likely to visit for known or chronic problems. CONCLUSIONS: Patients visit their PCP for a wide variety of reasons, often during the same visit. Patients refer for administrative requests in about a third of visits. They initiate preventive care infrequently (1 out of 20 visits). To further characterize patient utilization of primary care, a broader study needs to be performed. PMID- 29034797 TI - Corrigendum. PMID- 29034798 TI - Intramuscular Electrical Stimulation for Muscle Activation of the Tibialis Anterior After Surgical Repair: A Case Report. AB - Background Loss of voluntary activation of musculature can result in muscle weakness. External neuromuscular stimulation can be utilized to improve voluntary activation but is often poorly tolerated because of pain associated with required stimulus level. Intramuscular electrical stimulation requires much lower voltage and may be better tolerated, and therefore more effective at restoring voluntary muscle activation. Case Description A 71-year-old man sustained a rupture of the distal attachment of the tibialis anterior tendon. Thirty-two weeks after surgical repair, there was no palpable or visible tension development in the muscle belly or tendon. Dorsiflexion was dependent on toe extensors. Electrical stimulation applied via a dry needling placement in the muscle belly was utilized to induce an isometric contraction. Outcomes Five sessions of intramuscular electrical stimulation were delivered. By day 4 (second visit), the patient was able to dorsiflex without prominent use of the extensor hallucis longus. By day 6 (third visit), active-range-of-motion dorsiflexion with toes flexed increased 20 degrees (-10 degrees to 10 degrees ). Eighteen days after the initial treatment, the patient walked without his previous high-step gait pattern, and the tibialis anterior muscle test improved to withstanding moderate resistance (manual muscle test score, 4/5). Discussion The rapid change in muscle function observed suggests that intramuscular electrical stimulation may facilitate voluntary muscle activation. Level of Evidence Therapy, level 5. J Orthop Sports Phys Ther 2017;47(12):965-969. Epub 15 Oct 2017. doi:10.2519/jospt.2017.7368. PMID- 29034799 TI - Measurement Properties of a Test Battery to Assess Postural Orientation During Functional Tasks in Patients Undergoing Anterior Cruciate Ligament Injury Rehabilitation. AB - Study Design Cross-sectional study. Background Visual rating of postural orientation during functional tasks may be a valuable tool to track rehabilitation progress following anterior cruciate ligament (ACL) injury. A valid test battery assessing postural orientation as a separate construct is lacking. Objectives To evaluate measurement properties of a test battery to assess postural orientation in patients with ACL injury. Methods The content validity of functional tasks was assessed by expert focus group discussions. Fifty-one patients (45% women) with ACL injury performed 9 functional tasks of varying difficulty. Interpretability, internal consistency, interrater reliability, and measurement error were assessed for segment-specific postural orientation errors (POEs), within-task POEs, and total POE score. Postural orientation errors were scored on video on an ordinal scale from 0 (no POEs) to 3 (major POEs). Results Stair ascent, deep squat, and crossover hop for distance were excluded in focus group discussions. Postural orientation errors in some tasks were excluded due to floor effects. The mini-squat and drop jump were excluded due to poor internal consistency (alpha<=.184). Interrater reliability values for segment-specific POEs and within-task POEs yielded fair to almost perfect agreement (kappa = 0.429-0.875) and almost perfect agreement for total POE score (intraclass correlation coefficient = 0.842), without systematic differences between raters. The smallest detectable changes were 0.7 and 5 points for groups and individuals, respectively. Conclusion The final test battery (single-leg mini-squat, stair descent, forward lunge, single-leg hop for distance) of 4 POEs (foot pronation, medial knee-to-foot position, hip joint POEs, and trunk segment POEs) demonstrated good measurement properties in people with ACL injury. J Orthop Sports Phys Ther 2017;47(11):863-873. doi:10.2519/jospt.2017.7270. PMID- 29034800 TI - Hip and Knee Strengthening Is More Effective Than Knee Strengthening Alone for Reducing Pain and Improving Activity in Individuals With Patellofemoral Pain: A Systematic Review With Meta-analysis. AB - Study Design Systematic review with meta-analysis. Background The addition of hip strengthening to knee strengthening for persons with patellofemoral pain has the potential to optimize treatment effects. There is a need to systematically review and pool the current evidence in this area. Objective To examine the efficacy of hip strengthening, associated or not with knee strengthening, to increase strength, reduce pain, and improve activity in individuals with patellofemoral pain. Methods A systematic review of randomized and/or controlled trials was performed. Participants in the reviewed studies were individuals with patellofemoral pain, and the experimental intervention was hip and knee strengthening. Outcome data related to muscle strength, pain, and activity were extracted from the eligible trials and combined in a meta-analysis. Results The review included 14 trials involving 673 participants. Random-effects meta analyses revealed that hip and knee strengthening decreased pain (mean difference, -3.3; 95% confidence interval [CI]: -5.6, -1.1) and improved activity (standardized mean difference, 1.4; 95% CI: 0.03, 2.8) compared to no training/placebo. In addition, hip and knee strengthening was superior to knee strengthening alone for decreasing pain (mean difference, -1.5; 95% CI: -2.3, 0.8) and improving activity (standardized mean difference, 0.7; 95% CI: 0.2, 1.3). Results were maintained beyond the intervention period. Meta-analyses showed no significant changes in strength for any of the interventions. Conclusion Hip and knee strengthening is effective and superior to knee strengthening alone for decreasing pain and improving activity in persons with patellofemoral pain; however, these outcomes were achieved without a concurrent change in strength. Level of Evidence Therapy, level 1a-. J Orthop Sports Phys Ther 2018;48(1):19-31. Epub 15 Oct 2017. doi:10.2519/jospt.2018.7365. PMID- 29034801 TI - Gluteus Minimus and Gluteus Medius Muscle Activity During Common Rehabilitation Exercises in Healthy Postmenopausal Women. AB - Study Design Controlled laboratory study, cross-sectional. Background The gluteus medius (GMed) and gluteus minimus (GMin) provide dynamic stability of the hip joint and pelvis. These muscles are susceptible to atrophy and injury in individuals during menopause, aging, and disease. Numerous studies have reported on the ability of exercises to elicit high levels of GMed activity; however, few studies have differentiated between the portions of the GMed, and none have examined the GMin. Objectives To quantify and rank the level of muscle activity of the 2 segments of the GMin (anterior and posterior fibers) and 3 segments of the GMed (anterior, middle, and posterior fibers) during 4 isometric and 3 dynamic exercises in a group of healthy, postmenopausal women. Methods Intramuscular electrodes were inserted into each segment of the GMed and GMin in 10 healthy, postmenopausal women. Participants completed 7 gluteal rehabilitation exercises, and average normalized muscle activity was used to rank the exercises from highest to lowest. Results The isometric standing hip hitch with contralateral hip swing was the highest-ranked exercise for all muscle segments except the anterior GMin, where it was ranked second. The highest-ranked dynamic exercise for all muscle segments was the dip test. Conclusion The hip hitch and its variations maximally activate the GMed and GMin muscle segments, and may be useful in hip muscle rehabilitation in postmenopausal women. J Orthop Sports Phys Ther 2017;47(12):914-922. Epub 15 Oct 2017. doi:10.2519/jospt.2017.7229. PMID- 29034802 TI - Unraveling the Mechanisms of Manual Therapy: Modeling an Approach. AB - Synopsis Manual therapy interventions are popular among individual health care providers and their patients; however, systematic reviews do not strongly support their effectiveness. Small treatment effect sizes of manual therapy interventions may result from a "one-size-fits-all" approach to treatment. Mechanistic-based treatment approaches to manual therapy offer an intriguing alternative for identifying patients likely to respond to manual therapy. However, the current lack of knowledge of the mechanisms through which manual therapy interventions inhibit pain limits such an approach. The nature of manual therapy interventions further confounds such an approach, as the related mechanisms are likely a complex interaction of factors related to the patient, the provider, and the environment in which the intervention occurs. Therefore, a model to guide both study design and the interpretation of findings is necessary. We have previously proposed a model suggesting that the mechanical force from a manual therapy intervention results in systemic neurophysiological responses leading to pain inhibition. In this clinical commentary, we provide a narrative appraisal of the model and recommendations to advance the study of manual therapy mechanisms. J Orthop Sports Phys Ther 2018;48(1):8-18. doi:10.2519/jospt.2018.7476. PMID- 29034803 TI - LncRNA HOXA11-AS promotes proliferation and invasion by targeting miR-124 in human non-small cell lung cancer cells. AB - Long non-coding RNAs have been implicated in human cancer but their mechanisms of action are mainly undocumented. In this study, we found that HOXA11-AS expression was upregulated in non-small cell lung cancer tissues and cell lines. High levels of HOXA11-AS expression were correlated with larger tumor size and lymph node metastasis. Functional analysis revealed that HOXA11-AS promotes non-small cell lung cancer cell proliferation and invasion. In particular, HOXA11-AS functions as a competing endogenous RNA to regulate transcriptional factor Sp1 expression via sponging miR-124. Collectively, our findings reveal an oncogenic role for HOXA11-AS in non-small cell lung cancer tumorigenesis. PMID- 29034804 TI - CIP2A expression predicts recurrences of tamoxifen-treated breast cancer. AB - CIP2A is emerging as an oncoprotein overexpressed commonly across many tumours and generally correlated with higher tumour grade and therapeutic resistance. CIP2A drives an oncogenic potential through inhibiting protein phosphatase 2A, stabilizing MYC, and promoting epithelial-to-mesenchymal transition, although further biological mechanisms for CIP2A are yet to be defined. CIP2A protein expression was studied by immunohistochemistry in oestrogen receptor-positive primary breast cancers (n = 250) obtained from the Leeds Tissue Bank. In total, 51 cases presented with a relapse or metastasis during adjuvant treatment with tamoxifen and were regarded as tamoxifen resistant. CIP2A expression was scored separately for cytoplasmic, nuclear, or membranous staining, and scores were tested for statistically significant relationships with clinicopathological features. Membranous CIP2A was preferentially expressed in cases who experienced a recurrence during tamoxifen treatment thus predicting a worse overall survival (log rank = 8.357, p = 0.004) and disease-free survival (log rank = 21.766, p < 0.001). Cox multivariate analysis indicates that it is an independent prognostic indicator for overall survival (hazard ratio = 4.310, p = 0.013) and disease-free survival (hazard ratio = 5.449, p = 0.002). In this study, we propose the assessment of membranous CIP2A expression as a potential novel prognostic and predictive indicator for tamoxifen resistance and recurrence within oestrogen receptor-positive breast cancer. PMID- 29034805 TI - In vitro investigation of the effect of matrix molecules on the behavior of colon cancer cells under the effect of geldanamycin derivative. AB - The chaperone-binding drug, 17-allylamino-17-demethoxygeldanamycin, has recently come into clinical use. It is a derivative of geldanamycin, an ansamycin benzoquinone antibiotic with anti-carcinogenic effect. Understanding the effect of this drug on the cancer cells and their niche is important for treatment. We applied 17-allylamino-17-demethoxygeldanamycin to colon cancer cell line (Colo 205) on matrix molecules to investigate the relationship of apoptosis with terminal deoxynucleotidyl transferase dUTP nick end labeling immunocytochemistry and related gene expression. We used laminin and collagen I for matrix molecules and vascular endothelial growth factor for angiogenic structure. We also examined apoptosis-related signaling pathway including mitochondrial proteins, cytochrome c, Bcl-2, caspase-9, Apaf-1 expression using real-time polymerase chain reaction. There was clear effect of 17-allylamino-17-demethoxygeldanamycin that killed more cells on tissue culture plastic compared to matrix molecules. The IC50 value was 0.58 ug/mL for tissue culture plastic compared with 0.64 ug/mL for laminin and 0.75 ug/mL for collagen I. The analyses showed that more cells on matrix molecules underwent apoptosis compared to that on tissue culture plastic. Apoptosis-related gene expression was similar in which Bcl-2 expression decreased and proapoptotic gene expression of the cells on matrix molecules increased compared to that on tissue culture plastic. However, the application of 17 allylamino-17-demethoxygeldanamycin was more effective for the cells on collagen I compared to the cells on laminin. There was also a decrease in angiogenesis as shown by the vascular endothelial growth factor staining. This was more pronounced by coating of the tissue culture plastic with matrix molecules. Our results supported the anti-cancer effect of 17-allylamino-17 demethoxygeldanamycin, and this effect depended on matrix molecules. This effect occurs through apoptosis, and related genes were also altered. All these genes may serve for novel target under the effect of matrix substrate. However, correct interpretation of the results requires further studies. PMID- 29034806 TI - Exploring the East-West Divide in Prevalence of Affective Disorder: A Case for Cultural Differences in Coping With Negative Emotion. AB - Lifetime rates of clinical depression and anxiety in the West tend to be approximately 4 to 10 times greater than rates in Asia. In this review, we explore one possible reason for this cross-cultural difference, that Asian cultures think differently about emotion than do Western cultures and that these different systems of thought help explain why negative affect does not escalate into clinical disorder at the same rate. We review research from multiple disciplines-including cross-cultural psychology, social cognition, clinical psychology, and psychiatry-to make the case that the Eastern holistic principles of contradiction (each experience is associated with its opposite), change (the world exists in a state of constant flux), and context (the interconnectedness of all things) fundamentally shape people's experience of emotions in different cultures. We then review evidence for how these cultural differences influence how successfully people use common emotion regulation strategies such as rumination and suppression. PMID- 29034810 TI - Adult idiopathic cholestasis: a condition more common in the Canadian Inuit? AB - Despite extensive investigations, some patients have no identifiable cause for their cholestatic liver enzyme abnormalities. The aim of this study was to document the clinical, laboratory, radiologic and histologic features of adult patients with idiopathic cholestasis (AIC). A computerised database of referred patients to a tertiary care hospital outpatient department for assessment of hepatobiliary disorders between 2005 and 2015 was employed to identify and describe features associated with AIC. Of 6,560 patient referrals, sufficient documentation to warrant a diagnosis of AIC was present in 17 (0.26%) cases. Of the 17, a disproportionate number were Canadian Inuit (7/60, 12% Inuit referrals vs. 10/6,500, 0.16% non-Inuit referrals, p<0.0001). The median age of the 17 subjects was 57 years and nine (53%) were female. Clinical and/or laboratory evidence of autoimmune disorders was present in six (35%) cases. Clinical features of hepatic decompensation, radiologic findings in keeping with cirrhosis and histologic confirmation of cirrhosis were present in 47%, 31% and 42% of individuals, respectively. There were no significant improvements in cholestatic liver enzymes and function tests in those treated with ursodiol and/or immunomodulants (n=7) compared to those left untreated (n=10). In conclusion, AIC is a rare condition diagnosed by exclusion. It appears to be more common in the Canadian Inuit population and those with autoimmune disorders. Advanced liver disease is a frequent finding at presentation. Intervention with ursodiol and/or immunomodulants does not appear to be of therapeutic value. PMID- 29034811 TI - Mental illness stigma among medical students and teachers. AB - BACKGROUND: Medical school curriculum contributes to future doctors' attitude formation towards people with mental illness. AIM: The purpose of this study was to compare stigmatizing attitudes between medical students and faculty, analyse stigmatizing attitudes among students from different years of study and identify factors predicting stigma. METHODS: A cross-sectional study with the use of scales measuring attitudes and social distance was designed. Online questionnaires were distributed to all students and teachers at a medical faculty in the Czech Republic. RESULTS: The response rate was 32.1% ( n = 308) among students and 26.7% ( n = 149) among teachers. Teachers had a greater prevalence of stigmatizing attitudes than students. Increased tolerant attitudes in students were detected after the fourth year, that is, following introduction to psychiatry. Preferred specialization in psychiatry and attending two psychiatry courses predicted more tolerant attitudes. Among both students and teachers, men possessed more stigmatizing attitudes towards people with mental illness. Age was an important predictor of stigmatizing attitudes among teachers. CONCLUSION: Educators should pay closer attention to the role of medical psychology and communication training implementation, which may be beneficial to improving skills and increasing medical students' self-esteem and feeling of competence throughout their psychiatry rotation. PMID- 29034812 TI - Symptom-reducing actions: a concept analysis in the context of chronic obstructive pulmonary disease. AB - Patients with Chronic Obstructive Pulmonary Disease (COPD) have multiple symptoms. Nursing care is based on six core competencies and one of them is person-centred care that includes the aspect of professional symptom relief. The aim was to clarify a meaning of the concept of Symptom-reducing actions in the context of COPD. Databases MEDLINE and CINAHL were searched between 1982 and February 2016 and 26 publications were found. Two dictionaries and three books were investigated. The method of Walker & Avant was followed. The use of the concept of Symptom-reducing actions may be categorized by the sub-concepts of supervision, information, and patient education. Exploration of defining attributes was symptom management, instructions, support, motivation, explanation, advice, teaching, and learning. Antecedent occurrences were related to factors that affect the patient's level of function such as physical performance and cognitive function. Symptom-reducing actions offer a way to support patients with COPD in self-management. Symptom-reducing actions can mediate facts in a purposeful process performed by the nurse to enable the patient to take control over and manage unpleasant symptoms by a person-centred, planned process. The nurse can achieve this via supervision, information, and patient education with an integrated emotional component. Evaluating the outcomes is needed. PMID- 29034813 TI - A review of medical terminology standards and structured reporting. AB - Much effort has been invested in standardizing medical terminology for representation of medical knowledge, storage in electronic medical records, retrieval, reuse for evidence-based decision making, and for efficient messaging between users. We only focus on those efforts related to the representation of clinical medical knowledge required for capturing diagnoses and findings from a wide range of general to specialty clinical perspectives (e.g., internists to pathologists). Standardized medical terminology and the usage of structured reporting have been shown to improve the usage of medical information in secondary activities, such as research, public health, and case studies. The impact of standardization and structured reporting is not limited to secondary activities; standardization has been shown to have a direct impact on patient healthcare. PMID- 29034814 TI - Entomophthoromycosis and mucormycosis as causes of pneumonia in Vietnamese potbellied pigs. AB - Two Vietnamese potbellied pigs ( Sus scrofa) had respiratory disease and, on autopsy, both pigs had large masses in the lungs and thoracic cavity. Microscopically, pulmonary and pleural masses contained large areas with hyphae surrounded by hypereosinophilic cellular debris rimmed by abundant eosinophils, lymphocytes, plasma cells, and histiocytes with occasional multinucleate giant cells. The hypereosinophilic debris usually formed tight cuffs, or "sleeves" around the hyphae, compatible with Splendore-Hoeppli-like material. The fungal organisms were determined by PCR to be Conidiobolus incongruus in one pig and Mucor circinelloides in the other. Entomophthoromycosis and mucormycosis should be included in the differential diagnoses for swine pneumonia, particularly when there is evidence of granulomatous pulmonary masses and pleural effusion with eosinophilic inflammation. PMID- 29034815 TI - Association of the vitamin D receptor FokI gene polymorphism with sex- and non sex-associated cancers: A meta-analysis. AB - Currently higher morbidity and mortality rates are observed in cancer diseases, especially sex-dependent cancers. A positive role of endogenous vitamin D concentration in cancer diseases has been reported in many publications. Furthermore, there has been observed a relationship between serum vitamin D and testosterone concentrations in an elderly Caucasian population carrying the vitamin D receptor FokI gene polymorphism. The aim of this study was to investigate whether the vitamin D receptor FokI polymorphism is associated with cancerogenesis in sex-dependent cancers. The MEDLINE and ResearchGate databases were used to search for articles up to January 2017, and 96 articles concerning the FokI polymorphism were chosen. Odds ratios with 95% confidence intervals were used to assess the strength of associations between polymorphisms of vitamin D receptor and cancer risk in the described populations. The fixed-effects model and the DerSimonian-Laird random-effects model (with weights based on the inverse variance) were used to calculate summary odds ratios, and both within- and between-study variation were considered. Generally, the F variant reduces the risk of cancer by 4% (odds ratio = 0.96, p value = 0.0057). This effect is particularly evident in female sex-associated cancers (odds ratio = 0.96, 95% confidence interval: 0.93-0.99, p value = 0.0259), but it is not observed in non sex-associated cancers. Polymorphism FokI is associated with breast and ovarian cancers. PMID- 29034816 TI - Clinical performance of LOCITM-based tumor marker assays for tumor markers CA 15 3, CA 125, CEA, CA 19-9 and AFP in gynecological cancers. AB - Evidence is sparse regarding the clinical performance of luminescent oxygen channeling immunoassays-based tumor marker assays in gynecological cancer. Analyzing serum samples of 336 patients with DimensionTMVista1500, we investigated the diagnostic power of carbohydrate antigen 15-3, carbohydrate antigen 125, carcinoembryonic antigen, carbohydrate antigen 19-9, and alpha fetoprotein in patients suffering from different types of gynecological cancer and precancerous gynecological diseases and compared findings to appropriate control groups. The cohort comprised 177 female patients with gynecological cancers (73 breast, 22 cervical, 16 endometrial, 17 vulva, and 49 ovarian cancers), 26 patients with precancerous gynecological diseases (11 vulva, 4 cervical, and 10 breast), 109 patients with benign gynecological diseases, and 24 healthy controls. Discriminative power was assessed by areas under the curve in receiver operating characteristic curves, and sensitivities were determined at a fixed specificity of 95%. Levels of biomarkers in healthy controls were in the expected ranges and a discriminative power between gynecological cancers and healthy controls was observed for several tumor markers. Established tumor type associated markers were elevated in specific gynecological cancers and benign controls as well as within precancerous gynecological diseases and healthy control group. In ovarian cancer, carbohydrate antigen 125 and carbohydrate antigen 15-3 were significantly elevated compared to the respective benign diseases. Carbohydrate antigen 125 was the most conclusive marker (area under the curve = 0.86% and 77.6% sensitivity at 95% specificity). In breast cancer, carcinoembryonic antigen and carbohydrate antigen 15-3 were significantly higher than in the respective benign diseases. Carcinoembryonic antigen achieved the most conclusive area under the curve (0.65) with 31.5% sensitivity at 95% specificity. None of the investigated markers was found to be of value in discriminating benign and malignant cervical diseases. Carcinoembryonic antigen and alpha-fetoprotein distinguished precancerous breast and vulva diseases from healthy controls. These findings show that luminescent oxygen channeling immunoassays-based tumor marker assays provide reliable results in routine diagnostics. PMID- 29034818 TI - SCI Facts and Figures. PMID- 29034817 TI - Enhanced cytotoxic activity of effector T-cells against cholangiocarcinoma by dendritic cells pulsed with pooled mRNA. AB - Cholangiocarcinoma is a malignancy of bile duct epithelia with an increasing in incidence rate worldwide. Surgery is the only curative treatment, while adjuvant chemotherapy and radiotherapy render poor responses. Cell-based immunotherapy is a potential strategy for cholangiocarcinoma treatment. However, variation of tumor antigens in cholangiocarcinoma leads to the ineffectiveness of cell-based immunotherapy. In this study, we examined the activation of effector T-cells by dendritic cells pulsed with protein lysate or total RNA from cholangiocarcinoma cell lines for their cytolytic activity against cholangiocarcinoma. Broad spectrum antigen types with respect to RNA antigen sources were obtained from combination of three cholangiocarcinoma cell lines (KKU-213, KKU-100, and KKU 055). Compared with protein lysate-pulsed dendritic cells, total RNA-pulsed dendritic cells induced anti-tumor effector T-cell response with higher killing ability to KKU-100 and KKU-213 cells compared with protein lysate-pulsed dendritic cells. Moreover, pooled messenger RNA from three cholangiocarcinoma cell lines significantly increased the specific killing capacity of activated lymphocytes against KKU-213 cells. These results suggest that activation of anti tumor effector T-cells against cholangiocarcinoma by RNA-pulsed dendritic cells is more effective than that by protein lysate-pulsed dendritic cells. In addition, pulsing dendritic cells with pooled messenger RNA from multiple cell lines enhanced the efficacy of a cellular immune response against cholangiocarcinoma. PMID- 29034820 TI - True North Strong and Free. PMID- 29034819 TI - Editors' Note. PMID- 29034822 TI - A Look at Traumatic Spinal Cord Injury in Canada: Rick Hansen Spinal Cord Registry (RHSCIR). PMID- 29034823 TI - Editorial Board Page. PMID- 29034824 TI - Welcome to the 7th National Spinal Cord Injury Conference! Celebrating our history. PMID- 29034825 TI - A tale of four practices. AB - Purpose The Patient-Centered Medical Home (PCMH) has become a dominant model of primary care re-design. This transformation presents a challenge to many care delivery organizations. The purpose of this paper is to describe attributes shaping successful and unsuccessful practice transformation within four medical practice groups. Design/methodology/approach As part of a larger study of 25 practices transitioning into a PCMH, the current study focused on diabetes care and identified high- and low-improvement medical practices in terms of quantitative patient measures of glycosylated hemoglobin and qualitative assessments of practice performance. A subset of the top two high-improvement and bottom two low-improvement practices were identified as comparison groups. Semi structured interviews were conducted with diverse personnel at these practices to investigate their experiences with practice transformation and data were analyzed using analytic induction. Findings Results show a variety of key attributes facilitating more successful PCMH transformation, such as empanelment, shared goals and regular meetings, and a clear understanding of PCMH transformation purposes, goals, and benefits, providing care/case management services, and facilitating patient reminders. Several barriers also exist to successful transformation, such as low levels of resources to handle financial expense, lack of understanding PCMH transformation purposes, goals, and benefits, inadequate training and management of technology, and low team cohesion. Originality/value Few studies qualitatively compare and contrast high and low performing practices to illuminate the experience of practice transformation. These findings highlight the experience of organizational members and their challenges in practice transformation while providing quality diabetes care. PMID- 29034826 TI - Voice of the Clinician: the case of an Australian health system. AB - Purpose The Voice of the Clinician project commenced during an era when practitioner burnout, dissatisfaction, and turnover became an increasingly global health workforce concern. One key problem is clinical staff not being empowered to voice their concerns to decision-makers, as was found in this case study of an Australian public health organization. The following research question informed the present study: What is a better committee system for clinician engagement in decision-making processes? The paper aims to discuss this issue. Design/methodology/approach The Mid North Coast Local Health District in New South Wales aspired to improve engagement between frontline clinicians and decision-makers. Social network analysis methods and mathematical modeling were used in the discovery of how committees are connected to each other and subsequently to other committee members. Findings This effort uncovered a hidden organizational architecture of 323 committees of 926 members which overall cost 84,729 person hours and AUD$2.923 million per annum. Furthermore, frontline clinicians were located far from centers of influence, just 37 percent of committees had terms of reference, and clinicians reported that meeting agendas were not being met. Practical implications In response to the findings, a technological platform was created so that the board of directors could visually see all the committees and the connections between them, thus creating ways to further improve communication, transparency of process, and - ultimately - clinician engagement. Originality/value The breakthrough idea is that all organizational meetings can be seen as a system of engagement and should be analyzed to determine and describe the points and pathways where clinician voice is blocked. PMID- 29034827 TI - Dealing with a changing work environment: hospital job type contingencies. AB - Purpose The purpose of this paper is twofold: first, to examine whether workers in various hospital job groups differ in their perceptions of the provision of managerial support, and of their up-to-date expertise (UDE), willingness to change (WTC) and employment opportunities (EO). Second, to examine whether and how the relationships between managerial support, workers' UDE, WTC and their EO are moderated by hospital job type. Design/methodology/approach Survey data were collected from 1,764 employees of three Dutch hospitals. ANOVAs and structural equation modeling were used to test the hypotheses. Findings The research findings indicate significant differences between the hospital job groups with regard to UDE, WTC and EO. No support was found for differences on managerial support nor for a moderating effect of hospital job type. The latter means that the relationships of managerial support with workers' UDE, WTC and EO are independent of job type. Originality/value Based on the findings, a classification system is constructed that shows how hospital workers' UDE, WTC and EO can be explained by the combination of the educational level required by a job and its degree of specialization. PMID- 29034828 TI - Professional expertise amongst speech-language therapists: "willing to share". AB - Purpose The current healthcare environment provides several challenges to the existing roles of healthcare professionals. The value of the professional expert is also under scrutiny. The purpose of this paper is to generate a construction of professional expertise amongst practitioners in the current healthcare environment. It used the speech-language therapy community in New Zealand (NZ) as an example. Design/methodology/approach Speech-language therapists currently practicing in NZ completed an online survey including qualitative and quantitative components. The range of experience and work settings of participants ( n=119) was representative of the workforce. Findings Participants clearly identified being "highly experienced" and "having in-depth knowledge" as essential elements of professional expertise. Thematic analysis generated two interconnected themes of a professional expert being a personal leader and teacher, and a highly experienced, knowledgeable and skilful practitioner. Additionally, practitioners needed to be seen to contribute to the community in order to be known as experts. Clinical practice was valued differently from research generation. Originality/value This study is novel in exploring a construction of professional expertise amongst practitioners in a current healthcare community. Within that community, experts could be viewed as highly effective practitioners that visibly contribute to the professional community. The study draws attention to the role of reputation and the impacts of being a clinical teacher or leader compared with pursuing a research role. This could be particularly relevant in the promotion of evidence-based practice. PMID- 29034829 TI - The impact of obesity on brain iron levels and alpha-synuclein expression is regionally dependent. AB - BACKGROUND: The importance of iron homeostasis is particularly apparent in the brain, where iron deficiency results in impaired cognition and iron accumulation is associated with neurodegenerative diseases. Obesity is linked to iron deficiency systemically, but the effects of obesity on brain iron and its associated consequences, including neurodegenerative processes remain unexplored. This preliminary study examined the effect of dietary-induced obesity on brain regional iron, alpha-synuclein expression, and F2-isoprostane (oxidative stress marker) concentrations in selected brain regions. OBJECTIVE: The objective of the study was to elucidate the vulnerability of selected brain regions (e.g. midbrain, hippocampus) to the possible process of neurodegeneration due to the altered iron content associated with obesity. METHODS: Twenty-one-day-old male C57BL/6J mice were fed with a high-fat diet (60% kcal from fat) or a control-fat diet (10% kcal from fat) for 20 weeks. Brain samples were collected and dissected into hippocampus, midbrain, striatum, and thalamus regions. Iron content, ferritin H (FtH) and alpha-synuclein protein and mRNA expressions, and F2 isoprostane were measured in selected regions. RESULTS: The results indicated that obesity caused significant differences in iron levels in the midbrain and thalamus, but not in the hippocampus or striatum, compared to control mice. Furthermore, markers of neurodegeneration (alpha-synuclein mRNA expression and F2 isoprostanes) were increased in the midbrain. DISCUSSION: These results support previous findings that brain iron metabolism responds to environmental stress in a regionally distinct manner and suggests that alterations in brain iron metabolism due to obesity may be relevant in neurodegeneration. PMID- 29034830 TI - Editorial: Fighting Against Kidney Injury. PMID- 29034831 TI - Graphene Oxide Based Metallic Nanoparticles and their Some Biological and Environmental Application. AB - BACKGROUND: Recently the decoration of graphene with metallic nanoparticles by a synchronized reduction of graphene oxide (GO) and synthesis of metallic nanoparticles has gained momentum. Metal-decorated carbon substrates, for example, carbon nanotubes and graphene oxide have been of interest to the scientific group all through the past three decades on account of different potential applications. The utilization of graphene oxide as the nano scale substrates for the formation of nanocomposites with metal oxides is a novel thought to acquire a hybrid which would show both the properties of GO as an interesting paper-shape material and the elements of single nanosized metal particles. METHODS: Graphene is a carbon allotrope of sp2 hybridized carbon atoms in a honeycomb lattice. It has attracted unique properties and potential applications. It has been synthesized and modified through various methods, and composites have been made with other nanomaterials, such as metals, metal oxides, and some complex oxides. RESULTS: Grapheme-metal oxide composites are gaining attention as a viable alternative to boost the efficiency of various catalytic, storage reactions in energy conversion, anticancer and drug delivery applications. Nevertheless, by combining the superior physical/chemical properties of GO themselves and the versatile nanomaterials that can decorate with GO, GO based materials have a bright future in the anticancer, drug delivery, energy, and environmental applications. CONCLUSION: This review article has described the recent publications in the development of Decoration of Graphene Oxide such as metals, metal oxides and their nanocomposites based materials. We anticipate this active field will continue growing rapidly, leading eventually to a variety of mature materials and devices that would benefit the society. Finally, the applications of composites are at their initial stages. They need to be studied systematically from both theoretical and experimental aspects. PMID- 29034832 TI - New Advances in Atrial Fibrillation Management: The Role of Apixaban. AB - BACKGROUND: Prevention of stroke is a pivotal intervention in the management of patients with atrial fibrillation (AF). Because of the difficulties of safely implementing Vitamin K Antagonists in all patients, there has been a growing interest in improving the pharmacological management of AF with newer antithrombotic agents. The new oral anticoagulants (NOACs) have been developed to overcome the limitations and improve the efficacy of the conventional oral anticoagulant drugs. Among the NOACs, apixaban - a very specific antagonist of activated factor Xa - has pharmacokinetic and pharmacodynamic properties that allow significant efficacy in AF management. OBJECTIVE: The aim of this review is to summarise the available data on the efficacy of apixaban in patients with AF, with a particular focus on the implications for its clinical management. RESULTS AND CONCLUSION: Clinical application of apixaban in subgroups of patients with AF is still under investigation and some contraindications should be taken into account. Despite these limitations, apixaban is an effective alternative to warfarin and aspirin for stroke prevention in AF, with encouraging evidence also in terms of adherence to treatment. PMID- 29034833 TI - Drug Therapy for Abdominal Aortic Aneurysms Utilizing Omega-3 Unsaturated Fatty Acids and Their Derivatives. AB - BACKGROUND: Abdominal aortic aneurysms (AAA) are life-threatening because of the potential for rupture, resulting in death. The current standard treatment for AAA is surgery, comprising laparotomic graft replacement and endovascular repair. However, because surgery carries the risk of major complications and re intervention, drug therapies are desirable because they may reduce the occurrence of enlargement and rupture. OBJECTIVE: Recent research shows that the progression of AAA is related to inflammatory reactions, especially those in the NF-kappaB pathway. Omega-3 polyunsaturated fatty acids (PUFA) show antiinflammatory effects. Some derivatives of omega-3 PUFA are known as specialized pro-resolving lipid mediators (SPM) such as resolvins. They play an important role in resolving inflammation. CONCLUSION: Omega-3 PUFA and SPM may show promised effects for drug treatment of AAA. PMID- 29034834 TI - Challenges and Advances in Gene Therapy Approaches for Neurodegenerative Disorders. AB - INTRODUCTION: The recent approval of Spinraza (nusinersen), an antisense oligonucleotide, by U.S. Food and Drug Administration to treat patients with spinal muscular atrophy, has reignited interests of researchers in designing and testing new gene therapy approaches to treat neurological disorders, in particular, to curb neurodegenerative diseases of the central nervous system which represent an ever-increasing public health burden to today's society. CONCLUSION: This review highlights several key factors to be taken into consideration to design successful preclinical and clinical gene therapy experiments with respect to the vehicle of delivery and the route of administration to CNS-specific targets, with an additional focus on antisense oligonucleotide therapy and recent clinical trial developments. PMID- 29034835 TI - Taste Masking Approaches for Medicines. AB - Undesirable taste is an important problem for patient compliance. Several oral pharmaceuticals and bulking agents have disagreeable and bitter-tasting components. The Bitter taste characteristics found in such systems have been eliminated or minimized by the development of numerous formulations with improved performance and acceptability especially in children and elderly patient. This review is mainly concerned with the bitter-masking techniques published in peer reviewed journals and will shed light on different methods of masking undesirable taste of the drugs, and their pharmaceutical applications. Hence, nearly no reference will be made to the techniques published as patent applications. PMID- 29034836 TI - Nanomedicine for Intranasal Delivery to Improve Brain Uptake. AB - Intranasal drug delivery system provides distinct advantage over conventional drug delivery system for a drug that is pharmacokenetically or biologically unstable. Major concern for the treatment of central nervous system diseases is, low concentration of therapeutically active molecule within brain as blood brain barrier is creating obstacle, where intranasal drug delivery provides direct transport of therapeutically active moiety into brain via olfactory or trigeminal pathway. Nasal mucosa provides distinct advantages like improved bioavailability, law dose and quick onset of action and high patient compliance, and the major disadvantage is residence time of drug and irreversible entrapment of drug. This article provides anatomical and physiological information about nasal route and various factors. Article discusses various types of nanoparticles used intranasally and moreover article also emphasizes patents, formulation under development and some. PMID- 29034837 TI - Dual-purpose Injectable Doxorubicin Conjugated Alginate Gel Containing Polycaprolactone Microparticles for Anti-Cancer and Anti-Inflammatory Therapy. AB - BACKGROUND: In situ gel formulations have been widely reported as a carrier for sustained release delivery systems due to certain advantages such as targeted drug delivery, minimal invasiveness and potent therapeutic activity. OBJECTIVE: Herein, in situ gel system for sustained release of doxorubicin and ibuprofen for anti-cancer and anti-inflammatory activity is reported. METHOD: Doxorubicin conjugated alginate (dox-alg) gel was prepared using EDC-NHS chemistry and loaded with ibuprofen encapsulated polycaprolactone (PCL) microparticles (dox-alg composite). PCL microparticles were prepared by a solvent evaporation method (size 50 - 100um). The gel was characterized using SEM, FTIR, XRD and TGA analysis. RESULTS: Dox-alg composite gel showed good syringeability and gel formation properties. Burst release was observed for both drugs within 24 h followed by sustained release till day 21. Doxorubicin released from composite showed considerable cytotoxic effect. Cell uptake was confirmed by confocal microscopy using MDA-MB-231 cells. Anti-inflammatory activity of ibuprofen released from composite gel was compared with the free drug. An injection of dox alg composite gel in the tissue would fill the void created after tumor removal surgery, prevent the resuscitation of remnant cancerous cells and reduce inflammation. CONCLUSION: Thus, the dox-alg composite gel could be a potential agent for the dual anti-cancer and anti-inflammatory therapy. PMID- 29034839 TI - Pharmacogenetics of Angiotensin-Converting Enzyme Inhibitors in Patients with Alzheimer's Disease Dementia. AB - BACKGROUND: While the angiotensin-converting enzyme degrades amyloid-beta, angiotensinconverting enzyme inhibitors (ACEis) may slow cognitive decline by way of cholinergic effects, by increasing brain substance P and boosting the activity of neprilysin, and by modulating glucose homeostasis and augmenting the secretion of adipokines to enhance insulin sensitivity in patients with Alzheimer's disease dementia (AD). We aimed to investigate whether ACE gene polymorphisms rs1800764 and rs4291 are associated with cognitive and functional change in patients with AD, while also taking APOE haplotypes and anti-hypertensive treatment with ACEis into account for stratification. METHODS: Consecutive late-onset AD patients were screened with cognitive tests, while their caregivers were queried for functional and caregiver burden scores. Prospective pharmacogenetic correlations were estimated for one year, considering APOE and ACE genotypes and haplotypes, and treatment with ACEis. RESULTS: For 193 patients, minor allele frequencies were 0.497 for rs1800764 - C (44.6% heterozygotes) and 0.345 for rs4291 - T (38.9% heterozygotes), both in Hardy-Weinberg equilibrium. Almost 94% of all patients used cholinesterase inhibitors, while 155 (80.3%) had arterial hypertension, and 124 used ACEis. No functional impacts were found regarding any genotypes or pharmacological treatment. Either for carriers of ACE haplotypes that included rs1800764 - T and rs4291 - A, or for APOE4- carriers of rs1800764 - T or rs4291 - T, ACEis slowed cognitive decline independently of blood pressure variations. APOE4+ carriers were not responsive to treatment with ACEis. CONCLUSION: ACEis may slow cognitive decline for patients with AD, more remarkably for APOE4- carriers of specific ACE genotypes. PMID- 29034838 TI - Formulation, Optimization and Evaluation of Organogel for Topical Delivery of Acyclovir. AB - BACKGROUND: The conventional acyclovir topical therapy has a low efficacy, due to the lack of penetration of a sufficient amount of drug to the target site. OBJECTIVE: The aim of this work was to formulate and optimize organogel containing acyclovir to enhance the penetration and retention time of acyclovir in the basal epidermis, site of Herpes simplex virus infections. METHODS: Microemulsion based organogel containing acyclovir was developed using the combination of surfactants, polar and nonpolar solvents. To investigate the microemulsion and gelling region, titration was carried out and pseudoternary phase diagram was constructed. The formulation was optimized by using 3-factor, 3 level, Box-Behnken design. Response surface plots were constructed for various response variables, viz. % drug permeation, viscosity and spreadability. The optimized formulation was searched utilizing overlay plots and desirability of the response. The optimized formulation was further characterized for microscopy, pH, ex-vivo permeation etc. Ex-vivo skin permeation showed first order drug diffusion through the skin and was found being stable upto 8 hrs. RESULTS: In case of developed organogel formulation, significantly higher amount of acyclovir was observed to be retained in the skin, as compared to retention observed with the conventional cream. CONCLUSION: The results show that the ACV organogel penetrates into the skin and form the reservoir that can slowly release the drug for a longer period and may control viral growth more effectively. PMID- 29034840 TI - Non-Anaesthetic Effects of Volatile Anaesthetics: A Short Trip on the Sea of Translational Medicine. AB - BACKGROUND: Volatile Anaesthetics (VA) are commonly used worldwide for induction and/or maintenance of general anaesthesia. They act in the central nervous system to reduce sensation and motor response during surgical and invasive diagnostic procedures. VAs also have some non-anaesthetic properties in the brain when administrated to patients at the extremes of age. Their biological impact on other organs should be taken into account during administration of anaesthesia. OBJECTIVE: In this review we summarize the recent knowledge on the non anaesthetic effects of inhaled halogenic ethers on cells and tissues. RESULTS AND CONCLUSION: Exposure to VAs may promote lasting neuro-behavioural deficits in the brains of developing children and deterioration in cognitive performance in elderly individuals. Preconditioning with VAs can prevent or minimise tissue ischaemia in the heart and brain. VAs act as an antiinflammatory in response to tissue damage during surgery and may attenuate both local and systemic inflammatory response. Further research is needed to elucidate a link between laboratory findings and their possible effects in humans. Because many questions remain unanswered in this field, translational medicine should be more focused on safety in anaesthesia for the improvement public health. PMID- 29034821 TI - Abstracts and Workshops 7th National Spinal Cord Injury Conference November 9 - 11, 2017 Fallsview Casino Resort Niagara Falls, Ontario, Canada. PMID- 29034841 TI - PPAR-gamma and Wnt Regulate the Differentiation of MSCs into Adipocytes and Osteoblasts Respectively. AB - BACKGROUND: Under the transcriptional control of numerous factors and intracellular signals, mesenchymal stem cells (MSCs) can differentiate into various cell types, including adipocytes and osteoblasts. However, the precise cellular signaling factors that determine the cell fate of MSCs in bone marrow remain largely unknown. OBJECTIVE: In this review, we focus on the ties of PPAR gamma and Wnt signaling in MSC differentiation into adipocytes and osteoblasts. RESULTS: Peroxisome proliferator-activated receptor-gamma (PPAR-gamma) is well established as a prime inducer of adipogenesis, while the Wnt pathway is regarded as the master moderator of osteogenesis. A theoretical inverse relationship exists between adipogenic and osteogenic lineage commitment and differentiation: the differentiation toward an osteoblast phenotype occurs at the expense of an adipocyte phenotype. CONCLUSION: It has been proposed that the balance between osteogenic and adipogeneic MSC differentiation is disrupted in diverse areas of human health. Therefore, understanding the ties between PPAR- gammaand Wnt signaling in MSC differentiation has significant implications in diverse areas of human health, from obesity to osteoporosis to regenerative medicine. PMID- 29034843 TI - Research Progress in Reversal of Tumor Multi-drug Resistance via Natural Products. AB - Multidrug resistance occurs when a tumor develops resistance to multiple chemotherapeutic drugs, which may include antitumor drugs with different chemical structures and mechanisms. Multidrug resistance limits the treatment effects of antitumor drugs, and is the main cause of chemotherapy failure. Multidrug resistance is caused by numerous factors including changes in ATP-binding cassette transporters, target proteins, detoxification, deoxyribonucleic acid repair, drug metabolic enzymes, and signal pathways of apoptosis. Clinical research indicates that natural products have great potential to treat tumors and reverse multidrug resistance. Natural products, which often have multiple targets, could play an important role in tumor treatment, have beneficial effects on tumor inhibition, improve symptoms, reduce radiotherapy and chemotherapy side effects, enhance immunity, and prolong survival. Because natural products often have few adverse reactions and less drug resistance, the antitumor activities of natural products have attracted extensive research. We aimed to review the basic research and clinical application of natural products in the reversal of multidrug resistance. PMID- 29034844 TI - MicroRNAs, Cancer and Diet: Facts and New Exciting Perspectives. AB - BACKGROUND: MicroRNAs (miRNAs) are small non-coding RNAs able to regulate gene expression at multiple levels. They are detected in tissues, blood, and other body fluids with high stability and have a recognized role in maintaining of tissue homeostasis. Aberrant expression profile of miRNAs has been observed in several diseases, primarily cancer. As a consequence, the analysis of miRNA signature has recognized diagnostic and prognostic role in human diseases, and the development of miRNA-based therapies is currently under investigation. Recently, emerging but controversial data have revealed the possibility that diet derived miRNAs might be transferred from food in living organisms to regulate gene expression. Thus, exogenous dietderived miRNAs might substantially contribute to the pool of circulating miRNAs to preserve tissue homeostasis and health status in recipient's organisms, opening new perspectives for diet in heath and disease. OBJECTIVE: This brief review aims at summarizing data concerning the recognized role of miRNAs as biomarkers, drugs and therapeutic targets in cancer and the detection and the activity of diet-derived miRNAs in both physiological and pathological conditions. CONCLUSION: MiRNAs have emerged as crucial molecules in anticancer therapies and diet-derived miRNAs might contribute to the pool of circulating miRNAs to preserve, maintain or restore health. PMID- 29034845 TI - Predicting miRNA Association with Corresponding Target Genes and Single Nucleotide Polymorphisms in Altered Renal Pathophysiology. AB - BACKGROUND: Translational research on miRNAs develops reliable biomarkers for diagnosis and prognosis of renal diseases. Bioinformatic analyses and systems biology could drive the research for knowing new informative miRNA targets. OBJECTIVES: This study proposes an approach to identify miRNA specific significant target genes, and single nucleotide polymorphisms (SNPs) associated with renal pathophysiology. METHODS: miRNAs were selected after removing duplicity, on the basis of techniques used, and disease spectrum width score. Target genes were predicted from different databases like miRWalk, miRTarBase, and DIANA-TarBase. SNPs were prioritized on the basis of target score and conserved energy score available in MirSNP database. miRNAs were characterized as "specific", "strong", "likely", "unlikely", and "irrelevant" biomarkers. PCR-SSP based genotyping was carried out to access the molecular profiling of hsa-miR-192 and TGF-beta1 followed by quantitative real time PCR to analyze expression level of TGF-beta1. The relative expression levels of mRNAs were analyzed by 2 DeltaDeltaCt method. RESULTS: 170 renal associated miRNAs were found to be up regulated, down-regulated or differentially expressed. Noticeably hsa-miR-192-3p expression was reported in nine diseases. 117 genes were associated with basic kidney diseases and end stage renal disease (ESRD). Threshold > 80% for 93 target genes was observed from mirSVR. Mutant genotypes for hsa-miR-192 (OR=4.64, p value <= 0.0001) and its corresponding target gene TGF-beta1 (OR = 0.70, p-value = 0.0351) showed susceptible association with ESRD. More so, patients possessing mutant allele of TGF-beta1 showed elevated mRNA expression (Fold change = 9.83). CONCLUSION: Study proposed a new approach to identify specific miRNA biomarkers for particular diseases with corresponding target genes and SNPs and also highlighted the importance of hsa-miR-192 in renal diseases. PMID- 29034846 TI - Kocuria salina sp. nov., an actinobacterium isolated from the rhizosphere of the halophyte Arthrocnemum macrostachyum and emended description of Kocuria turfanensis. AB - A novel, non-motile coccoid, Gram-positive and non-endospore forming bacterium, designated Hv14bT, was isolated from the rhizosphere of the halophyte Arthrocnemum macrostachyum. It was observed to be catalase positive and oxidase negative and able to hydrolyse starch. MK-8(H2) was identified as the dominant menaquinone and the major cellular fatty acids were anteiso-C15 : 0 and iso-C15 : 0. The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol and an unidentified glycolipid. The 16S rRNA genes showed the highest 16S rRNA sequence identity with K. polaris DSM 14382T, K. rosea DSM 20447T and K. turfanensis DSM 22143T. Based on the phenotypic and molecular features and DNA-DNA hybridization data, it is concluded that strain Hv14bT is proposed to represent a novel species in the genus Kocuria, Kocuria salina sp. nov., with the type strain Hv14bT=DSM 28714T=CECT 9229T. PMID- 29034848 TI - Characterization of thermotolerant phototrophic bacteria, Rhodoplanes tepidicaeni sp. nov. and Rhodoplanes azumiensis sp. nov., isolated from a geothermal spring. AB - Two strains of thermotolerant phototrophic alphaproteobacteria, designated strains TUT3542T and TUT3581T, were isolated from sediment mud and cyanobacterial mats in a geothermal spring in Japan, respectively, and taxonomically characterized. Both the strains were budding motile rods and were able to grow at 45 degrees C. Phototrophically grown cells of strains TUT3542T and TUT3581T produced pink and brownish red cultures, respectively, and showed in vivo absorption maxima at 800, 858-859 and 892-895 nm in the near infrared region, indicating the presence of a core reaction centre and peripheral pigment complexes with bacteriochlorophyll a. The intracytoplasmic membrane system was of the lamellar type parallel to the cytoplasmic membrane. 16S rRNA gene sequence comparisons showed that strains TUT3542T and TUT3581T had the highest similarity level to Rhodoplanes oryazae NBRC 109406T (99.6 %) and Rhodoplaneselegans AS130T (99.3 %), respectively. Genomic DNA-DNA reassociation studies revealed that strains TUT3542T and TUT3581T had hybridization levels of less than 62 and 56 % to the type strains of all established species of the genus Rhodoplanes, respectively. The G+C contents of genomic DNA were 67.7 mol% for strain TUT3542T and 70.4 mol% for strain TUT3581T. Results of phenotypic studies showed that the two novel strains could be differentiated from any of the previously described Rhodoplanes species. Thus, the author proposes the names Rhodoplanes tepidicaeni sp. nov. for strain TUT3542T and Rhodoplanes azumiensis sp. nov. for strain TUT3581T. The type strain of Rhodoplanes tepidicaeni is TUT3542T (=KCTC 15602T=NBRC 112815T) and the type strain of Rhodoplanes azumiensis is TUT3581T (=KCTC 15603T=NBRC 112816T). PMID- 29034847 TI - Aurantimonas aggregata sp. nov., isolated from deep-sea sediment. AB - A novel bacterium, designated R14M6T, was isolated from deep-sea sediment collected from the Ross Sea, Antarctica. Cells are Gram-stain-negative, aerobic, pale yellow, short-rod-shaped, polar-flagellated and aggregate-forming. Growth occurs at 4-36 degrees C, pH 6.0-8.3, and in 1-15 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain R14M6T clustered together with Aurantimonas endophytica EGI6500337T and fell within the genus Aurantimonas. The 16S rRNA gene sequence of strain R14M6T shared similarity with A. endophytica EGI6500337T (99.15 %), A. manganoxydans DSM 21871T (97.73 %), A. coralicida DSM 14790T (97.58 %) and 'A. litoralis' KCTC 12094 (97.51 %). The DNA DNA relatedness values between strain R14M6T and A. endophytica EGI6500337T, A. coralicida DSM 14790T, A. manganoxydans DSM 21871T and 'A. litoralis' KCTC 12094 were 36.9+/-4.5, 27.6+/-2.8, 29.6+/-1.2 and 25.2+/-2.4 % respectively. The major fatty acid of strain R14M6T was C18 : 1omega7c. The major polar lipids were phosphatidylcholine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and an unidentified aminolipid. Strain R14M6T contained Q-10 as the dominant isoprenoid quinone. The DNA G+C content of strain R14M6T was 67.4 mol%. Based on the phylogenetic, physiological and chemotaxonomic analyses, strain R14M6T represents a novel species of the genus Aurantimonas, for which the name Aurantimonas aggregata sp. nov. is proposed. The type strain is R14M6T (=GDMCC 1.1202T=KCTC 52919T). PMID- 29034849 TI - Streptomyces amphotericinicus sp. nov., an amphotericin-producing actinomycete isolated from the head of an ant (Camponotus japonicus Mayr). AB - A novel actinomycete, designated strain 1H-SSA8T, was isolated from the head of an ant (Camponotus japonicus Mayr) and was found to produce amphotericin. A polyphasic approach was employed to determine the status of strain 1H-SSA8T. Morphological and chemotaxonomic characteristics were consistent with those of members of the genus Streptomyces. The menaquinones detected were MK-9(H6), MK 9(H8) and MK-9(H4). The phospholipid profile consisted of diphosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylethanolamine and phosphatidylinositol mannoside. The major fatty acids were identified as iso-C16 : 0, C16 : 0, C15 : 0 and anteiso-C15 : 0. Analysis of the 16S rRNA gene sequence showed that strain 1H SSA8T belongs to the genus Streptomyces with high sequence similarity to Streptomyces ramulosus NRRL B-2714T (99.2 %). Two tree-making algorithms based on 16S rRNA gene sequences showed that the isolate formed a phyletic line with Streptomyces himastatinicus ATCC 53653T (98.7 %). The MLSA utilizing partial sequences of the housekeeping genes (atpD, gyrB, recA, rpoB and trpB) also supported the position. However, evolutionary distances were higher than the 0.007 MLSA evolutionary distance threshold proposed for species-level relatedness. Moreover, the low level of DNA-DNA relatedness and phenotypic differences allowed the novel isolate to be differentiated from its most closely related strain S. ramulosus NRRL B-2714T and strain S. himastatinicus ATCC 53653T. It is concluded that the organism can be classified as representing a novel species of the genus Streptomyces, for which the name Streptomyces amphotericinicus sp. nov. is proposed. The type strain is 1H-SSA8T (=CGMCC 4.7350T=DSM 103128T). PMID- 29034851 TI - Nitrosopumilus maritimus gen. nov., sp. nov., Nitrosopumilus cobalaminigenes sp. nov., Nitrosopumilus oxyclinae sp. nov., and Nitrosopumilus ureiphilus sp. nov., four marine ammonia-oxidizing archaea of the phylum Thaumarchaeota. AB - Four mesophilic, neutrophilic, and aerobic marine ammonia-oxidizing archaea, designated strains SCM1T, HCA1T, HCE1T and PS0T, were isolated from a tropical marine fish tank, dimly lit deep coastal waters, the lower euphotic zone of coastal waters, and near-surface sediment in the Puget Sound estuary, respectively. Cells are straight or slightly curved small rods, 0.15-0.26 um in diameter and 0.50-1.59 um in length. Motility was not observed, although strain PS0T possesses genes associated with archaeal flagella and chemotaxis, suggesting it may be motile under some conditions. Cell membranes consist of glycerol dibiphytanyl glycerol tetraether (GDGT) lipids, with crenarchaeol as the major component. Strain SCM1T displays a single surface layer (S-layer) with p6 symmetry, distinct from the p3-S-layer reported for the soil ammonia-oxidizing archaeon Nitrososphaera viennensis EN76T. Respiratory quinones consist of fully saturated and monounsaturated menaquinones with 6 isoprenoid units in the side chain. Cells obtain energy from ammonia oxidation and use carbon dioxide as carbon source; addition of an alpha-keto acid (alpha-ketoglutaric acid) was necessary to sustain growth of strains HCA1T, HCE1T, and PS0T. Strain PS0T uses urea as a source of ammonia for energy production and growth. All strains synthesize vitamin B1 (thiamine), B2 (riboflavin), B6 (pyridoxine), and B12 (cobalamin). Optimal growth occurs between 25 and 32 degrees C, between pH 6.8 and 7.3, and between 25 and 37 0/00 salinity. All strains have a low mol% G+C content of 33.0-34.2. Strains are related by 98 % or greater 16S rRNA gene sequence identity, sharing ~85 % 16S rRNA gene sequence identity with Nitrososphaera viennensis EN76T. All four isolates are well separated by phenotypic and genotypic characteristics and are here assigned to distinct species within the genus Nitrosopumilus gen. nov. Isolates SCM1T (=ATCC TSD-97T =NCIMB 15022T), HCA1T (=ATCC TSD-96T), HCE1T (=ATCC TSD-98T), and PS0T (=ATCC TSD 99T) are type strains of the species Nitrosopumilusmaritimus sp. nov., Nitrosopumilus cobalaminigenes sp. nov., Nitrosopumilus oxyclinae sp. nov., and Nitrosopumilus ureiphilus sp. nov., respectively. In addition, we propose the family Nitrosopumilaceae fam. nov. and the order Nitrosopumilales ord. nov. within the class Nitrososphaeria. PMID- 29034850 TI - Pseudomonas aeruginosa variants obtained from veterinary clinical samples reveal a role for cyclic di-GMP in biofilm formation and colony morphology. AB - Overuse of antibiotics is contributing to an emerging antimicrobial resistance crisis. To better understand how bacteria adapt tolerance and resist antibiotic treatment, Pseudomonas aeruginosa isolates obtained from infection sites sampled from companion animals were collected and evaluated for phenotypic differences. Selected pairs of clonal isolates were obtained from individual infection samples and were assessed for antibiotic susceptibility, cyclic di-GMP levels, biofilm production, motility and genetic-relatedness. A total of 18 samples from equine, feline and canine origin were characterized. A sample from canine otitis media produced a phenotypically heterogeneous pair of P. aeruginosa isolates, 42121A and 42121B, which during growth on culture medium respectively exhibited hyper dye-binding small colony morphology and wild-type phenotypes. Antibiotic susceptibility to gentamicin and ciprofloxacin also differed between this pair of clonal isolates. Sequence analysis of gyrA, a gene known to be involved in ciprofloxacin resistance, indicated that 42121A and 42121B both contained mutations that confer ciprofloxacin resistance, but this did not explain the differences in ciprofloxacin resistance that were observed. Cyclic di-GMP levels also varied between this pair of isolates and were shown to contribute to the observed colony morphology variation and ability to form a biofilm. Our results demonstrate the role of cyclic di-GMP in generating the observed morphological phenotypes that are known to contribute to biofilm-mediated antibiotic tolerance. The generation of phenotypic diversity may go unnoticed during standard diagnostic evaluation, which potentially impacts the therapeutic strategy chosen to treat the corresponding infection and may contribute to the spread of antibiotic resistance. PMID- 29034852 TI - Comparison of direct-plating and broth-enrichment culture methods for detection of potential bacterial pathogens in respiratory secretions. AB - OBJECTIVE: We compared the recovery of potential respiratory bacterial pathogens and normal flora from nasopharyngeal specimens collected from children during health and at the onset of acute otitis media (AOM) by selective direct-plating and overnight broth-enrichment. METHODS: Overall, 3442 nasal wash (NW) samples collected from young children were analysed from a 10-year prospective study. NWs were cultured by (1) direct-plating to TSAII/5 % sheep blood agar and chocolate agar plates and (2) overnight broth-enrichment in BacT/ALERT SA-broth followed by plating. Standard microbiology techniques were applied to identify three dominant respiratory bacterial pathogens: Streptococcus pneumoniae (Spn), Haemophilus influenzae (Hflu) and Moraxella catarrhalis (Mcat) as well as two common nasal flora, Staphylococcus aureus (SA) and alpha-haemolytic Streptococci (AHS).Results/Key findings. Direct-plating of NW resulted in isolation of Spn from 37.8 %, Hflu from 13.6 % and Mcat from 33.2 % of samples. In comparison, overnight broth-enrichment isolated fewer Spn (30.1 %), Hflu (6.2 %) and Mcat (16.2 %) (P<0.001-0.0001). Broth-enrichment resulted in significant increased isolation of SA (6.0 %) and AHS (30.1 %) (P<0.0001). Competition between bacterial species in broth when both species were detected by direct-plating was assessed, and it was found that SA and AHS out-competed other species during broth-enrichment when samples were collected from healthy children but not during AOM. In middle ear fluids (MEF) at the onset of AOM, broth-enrichment resulted in higher recovery of Spn (+10.4 %, P<0.001), Hflu (+4.4 %, P=0.39) and Mcat (+13.5 %, <0.001). CONCLUSION: Broth-enrichment significantly reduces the accurate detection of bacterial respiratory pathogens and increases identification of SA and AHS in NW. Broth-enrichment improves detection of bacterial respiratory pathogens in MEF samples. PMID- 29034853 TI - Floricoccus tropicus gen. nov., sp. nov. and Floricoccus penangensis sp. nov. isolated from fresh flowers of durian tree and hibiscus. AB - Three strains of Gram-staining-positive, coccus-shaped, lactic acid bacteria, designated as HibF3T, HibF2 and HibF5 were isolated from fresh flowers of hibiscus, and a fourth, DF1T, was isolated from fresh flowers of durian tree, in Penang, Malaysia. Taxonomic characterisation was performed by polyphasic analysis. Sequence similarities of the 16S rRNA gene and the housekeeping rpoA and pheS genes of these strains with their closely-related lactococcal and streptococcal relatives were 92-94, 78 and 81 %, respectively. The results of phylogenetic analysis indicated that strains DF1T, HibF2, HibF5 and HibF3T were clustered together but were clearly separated from species of the genera Streptococcus and Lactococcus, indicating that they represent members of a novel genus of the family Streptococcaceae. Calculation of average nucleotide identity (ANI) values between the genomes of DF1T and HibF3T yielded values of 92.50-92.93 %. ANI values below the cut-off value and distinctive chemotaxonomic characteristics supported the hypothesis that these strains represented two novel species. Major cellular fatty acids in DF1T, HibF2 and HibF5 were C18 : 1omega7c and C16 : 0, while C12 : 0 and C14 : 0 were also dominant, in addition to C18 : 1omega7c and C16 : 0, in HibF3T. A novel genus is proposed with the name Floricoccus gen. nov. which consists of two species, Floricoccus tropicus sp. nov as the type species, and Floricoccus penangensis sp. nov. The respective type strains are DF1T (=LMG 29833T=JCM 31733T) and HibF3T (=LMG 29831T=DSM 31735T). PMID- 29034855 TI - Bradyrhizobium namibiense sp. nov., a symbiotic nitrogen-fixing bacterium from root nodules of Lablab purpureus, hyacinth bean, in Namibia. AB - Four strains of symbiotic bacteria from root nodules of hyacinth bean (Lablab purpureus (L.) Sweet) from Namibia were previously identified as a novel group within the genus Bradyrhizobium. To confirm their taxonomic status, these strains were further characterized by taking a polyphasic approach. The type strain possessed 16S rRNA gene sequences identical to Bradyrhizobium paxllaeri LMTR 21T and Bradyrhizobiumicense LMTR 13T, the full-length sequences were identical to those retrieved from SAMN05230119 and SAMN05230120, respectively. However, the intergenic spacer sequences of the novel group showed identities of less than 93.1 % to described Bradyrhizobium species and were placed in a well-supported separate lineage in the phylogenetic tree. Phylogenetic analyses of six concatenated housekeeping genes, recA, glnII, gyrB, dnaK, atpD and rpoB, corroborated that the novel strains belonged to a lineage distinct from named species of the genus Bradyrhizobium, with highest sequence identities to Bradyrhizobiumjicamae and B. paxllaeri (below 93 %). The species status was validated by results of DNA-DNA hybridization and average nucleotide identity values of genome sequences. The combination of phenotypic characteristics from several tests, including carbon source utilization and antibiotic resistance, could be used to differentiate representative strains from recognized species of the genus Bradyrhizobium. Phylogenetic analysis of nodC and nifH genes placed the novel strains in a group with B. paxllaeri and B.lablabi. Novel strain 5-10T induces effective nodules on Lablab purpureus, Vigna subterranea, Vigna unguiculata and Arachis hypogaea. Based on our results, we conclude that our strains represent a novel species for which the name Bradyrhizobium namibiense sp. nov. is proposed, with type strain 5-10T[LMG 28789, DSM 100300, NTCCM0017 (Windhoek)]. PMID- 29034854 TI - Whole genome transcriptomics reveals global effects including up-regulation of Francisella pathogenicity island gene expression during active stringent response in the highly virulent Francisella tularensis subsp. tularensis SCHU S4. AB - During conditions of nutrient limitation bacteria undergo a series of global gene expression changes to survive conditions of amino acid and fatty acid starvation. Rapid reallocation of cellular resources is brought about by gene expression changes coordinated by the signalling nucleotides' guanosine tetraphosphate or pentaphosphate, collectively termed (p)ppGpp and is known as the stringent response. The stringent response has been implicated in bacterial virulence, with elevated (p)ppGpp levels being associated with increased virulence gene expression. This has been observed in the highly pathogenic Francisella tularensis sub spp. tularensis SCHU S4, the causative agent of tularaemia. Here, we aimed to artificially induce the stringent response by culturing F. tularensis in the presence of the amino acid analogue l-serine hydroxamate. Serine hydroxamate competitively inhibits tRNAser aminoacylation, causing an accumulation of uncharged tRNA. The uncharged tRNA enters the A site on the translating bacterial ribosome and causes ribosome stalling, in turn stimulating the production of (p)ppGpp and activation of the stringent response. Using the essential virulence gene iglC, which is encoded on the Francisella pathogenicity island (FPI) as a marker of active stringent response, we optimized the culture conditions required for the investigation of virulence gene expression under conditions of nutrient limitation. We subsequently used whole genome RNA-seq to show how F. tularensis alters gene expression on a global scale during active stringent response. Key findings included up-regulation of genes involved in virulence, stress responses and metabolism, and down-regulation of genes involved in metabolite transport and cell division. F. tularensis is a highly virulent intracellular pathogen capable of causing debilitating or fatal disease at extremely low infectious doses. However, virulence mechanisms are still poorly understood. The stringent response is widely recognized as a diverse and complex bacterial stress response implicated in virulence. This work describes the global gene expression profile of F. tularensis SCHU S4 under active stringent response for the first time. Herein we provide evidence for an association of active stringent response with FPI virulence gene expression. Our results further the understanding of the molecular basis of virulence and regulation thereof in F. tularensis. These results also support research into genes involved in (p)ppGpp production and polyphosphate biosynthesis and their applicability as targets for novel antimicrobials. PMID- 29034856 TI - Franconibacter daqui sp. nov., a facultatively alkaliphilic species isolated from a Daqu sample. AB - A novel bacterium, designated strain DL503T, was isolated from a Daqu sample and its taxonomic position determined using a polyphasic taxonomy. Strain DL503T was a Gram-stain-negative, facultatively anaerobic, non-sporulating, motile and coccoid-rod-shaped bacterium. Optimum growth occurred at 20-45 degrees C, pH 5.0 10.0 and 1.5 % (w/v) NaCl. Comparative analysis of the 16S rRNA gene sequence showed that the isolate belongs to the genus Franconibacter, showing highest levels of similarity with respect to Franconibacter pulveris JCM 16471T (98.94 %) and Franconibacter helveticus DSM 18396T (98.39 %). Cells contained the quinones Q-8 and MK-8, and the polar lipid profile consisted of a mixture of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, three unidentified polar lipids and three unidentified amino lipids. The DNA G+C content was 53.3 mol% and the major fatty acids were C16 : 0, C17 : 0 cyclo, summed feature 3 (C16 : 1 omega7c and/or C16 : 1 omega6c), summed feature 4 (C17 : 1 iso I and/or C17 : 1 anteiso B) and summed feature 8 (C18 : 1 omega7c and/or C18 : 1 omega6c). The DNA-DNA relatedness values between strain DL503T and its close relatives, including F. pulveris JCM 16471T and F. helveticus DSM 18396T, were 51.5+/-0.5 % and 45.2+/-1.1 %, respectively. Based on phylogenetic analysis, phenotypic and genotypic data, it is concluded that the isolate represents a novel species of the genus Franconibacter, for which the name Franconibacter daqui sp. nov. is proposed. The type strain is DL503T (=LMG 29914T=CGMCC 1.15944T). PMID- 29034858 TI - Streptomyces kalpinensis sp. nov., an actinomycete isolated from a salt water beach. AB - A novel actinobacterium designated TRM 46509T was isolated from a salt water beach at Kalpin, Xinjiang, north-west China. The strain was aerobic and Gram stain-positive, with an optimum NaCl concentration for growth of 1 % (w/v). The isolate formed sparse aerial mycelium and produced spiral spores at the end of the aerial mycelium on Gauze's No. 1 medium. The isolate contained ll diaminopimelic acid as the diagnostic diamino acid and ribose as the major whole cell sugar. The polar lipids included diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol, phosphatidylinositol mannosides and an unidentified phospholipid. The predominant menaquinones were MK-9(H2), MK-9(H6) and MK-9(H8). The major fatty acids were C16:0, iso-C16 : 0, anteiso-C15 : 0, iso-C15 : 0 and iso-C14 : 0. The G+C content of the DNA was 69.3 mol%. Phylogenetic analysis showed that strain TRM 46509T shared 16S rRNA gene sequence similarity of 97.6 % with the closest described species Streptomyces tacrolimicus ATCC 55098T. On the basis of evidence from this polyphasic study, strain TRM 46509T should be designated as representing a novel species of the genus Streptomyces, for which the name Streptomyces kalpinensis sp. nov. is proposed. The type strain is TRM 46509T (=CCTCC AA 2015028T=KCTC 39667T). PMID- 29034859 TI - Massilia neuiana sp. nov., isolated from wet soil. AB - A novel aerobic, Gram-stain-negative, rod-shaped, motile bacterium, strain PTW21T, was isolated from wet soil. 16S rRNA gene sequence phylogenetic analysis of strain PTW21T revealed an affiliation to the genus Massilia and it shared 98.5 and 98.1 % similarity with Massilianiastensis 5516 S-1T and Massilia tieshanensis TS3T, respectively. Growth occurred at 10-45 degrees C, pH 4.5-12.5 and NaCl concentrations up to 2 % (w/v). The major fatty acids were summed feature 3 (C16 : 1omega7c and/or iso-C15 : 0 2-OH) and C16 : 0. The predominant respiratory quinone was Q-8. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. The DNA G+C content of strain PTW21T was 64.6 mol%. The results of DNA-DNA hybridization revealed that strain PTW21T showed 37.4 % relatedness with Massilia niastensis 5516 S-1T and 40.0 % with M. tieshanensis TS3T. Based on phenotypic, chemotaxonomic and phylogenetic differences, strain PTW21T (=CICC 24113T=BCRC 81061T) is proposed as the type strain of novel species of the genus Massilia with the names Massilia neuiana sp. nov. PMID- 29034860 TI - Comparison of two automated instruments for Epstein-Barr virus serology in a large adult hospital and implementation of an Epstein-Barr virus nuclear antigen based testing algorithm. AB - Serology remains the mainstay for diagnosis of Epstein-Barr virus (EBV) infection. This study compared two automated platforms (BioPlex 2200 and Architect i2000SR) to test three EBV serological markers: viral capsid antigen (VCA) immunoglobulins of class M (IgM), VCA immunoglobulins of class G (IgG) and EBV nuclear antigen-1 (EBNA-1) IgG. Using sera from 65 patients at various stages of EBV disease, BioPlex demonstrated near-perfect agreement for all EBV markers compared to a consensus reference. The agreement for Architect was near-perfect for VCA IgG and EBNA-1 IgG, and substantial for VCA IgM despite five equivocal results. Since the majority of testing in our hospital was from adults with EBNA 1 IgG positive results, post-implementation analysis of an EBNA-based algorithm showed advantages over parallel testing of the three serologic markers. This small verification demonstrated that both automated systems for EBV serology had good performance for all EBV markers, and an EBNA-based testing algorithm is ideal for an adult hospital. PMID- 29034857 TI - Minimal standards for describing new species belonging to the families Campylobacteraceae and Helicobacteraceae: Campylobacter, Arcobacter, Helicobacter and Wolinella spp. AB - Ongoing changes in taxonomic methods, and in the rapid development of the taxonomic structure of species assigned to the Epsilonproteobacteria have lead the International Committee of Systematic Bacteriology Subcommittee on the Taxonomy of Campylobacter and Related Bacteria to discuss significant updates to previous minimal standards for describing new species of Campylobacteraceae and Helicobacteraceae. This paper is the result of these discussions and proposes minimum requirements for the description of new species belonging to the families Campylobacteraceae and Helicobacteraceae, thus including species in Campylobacter, Arcobacter, Helicobacter, and Wolinella. The core underlying principle remains the use of appropriate phenotypic and genotypic methods to characterise strains sufficiently so as to effectively and unambiguously determine their taxonomic position in these families, and provide adequate means by which the new taxon can be distinguished from extant species and subspecies. This polyphasic taxonomic approach demands the use of appropriate reference data for comparison to ensure the novelty of proposed new taxa, and the recommended study of at least five strains to enable species diversity to be assessed. Methodological approaches for phenotypic and genotypic (including whole-genome sequence comparisons) characterisation are recommended. PMID- 29034861 TI - Clostridium pabulibutyricum sp. nov., a butyric-acid-producing organism isolated from high-moisture grass silage. AB - A Gram-stain-variable, strictly anaerobic, rod-shaped, catalase-negative and endospore-forming bacterial strain, designated MJC39T, was isolated from grass silage preserved in Hokkaido, Japan. Growth occurred at 20-42 degrees C, pH 5.0 7.0 and NaCl concentrations up to 2 % (w/v). The isolated strain MJC39T produced butyric acid in peptone yeast extract medium with glucose. The DNA G+C content of strain MJC39T was 34.4+/-0.2 mol%. The major cellular fatty acids (>10 %) were C14 : 0, C16 : 0 and summed feature 3 (including C16 : 1omega7c/C16 : 1omega6c). No respiratory quinones were detected. The polar lipids of strain MJC39T were phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, one unidentified lipid, one unidentified aminolipid, two unidentified glycolipids, one unidentified phospholipid, one unidentified aminoglycolipid and one unidentified phosphoaminoglycolipid. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain MJC39T was a member of the genus Clostridium and is closely related to Clostridium tyrobutyricum JCM 11008T (95.8 % similarity) and Clostridium algifaecis MB9-7T (95.5 % similarity). Based on the genotypic, phenotypic and chemotaxonomic characteristics, strain MJC39T represents a novel species of the genus Clostridium, for which the name Clostridium pabulibutyricum sp. nov. is proposed. The type strain is MJC39T (=JCM 31506T=DSM 103944T). PMID- 29034862 TI - Ultrastructural and microbial analyses of cellulose degradation in leaf-cutter ant colonies. AB - Leaf-cutter ants (Atta and Acromyrmex) use fresh leaves to cultivate a mutualistic fungus (Leucoagaricus gongylophorus) for food in underground gardens. A new ant queen propagates the cultivar by taking a small fragment of fungus from her parent colony on her nuptial flight and uses it to begin her own colony. Recent research has shown that the ants' fungus gardens are colonized by symbiotic bacteria that perform important functions related to nitrogen fixation and have been implicated in contributing to plant biomass degradation. Here, we combine bacterial culturing in several media for counts and identification using the 16S rRNA gene with electron microscopy to investigate the process of cellulose degradation in the fungus garden and refuse dumps, and to assess the potential role of symbiotic bacteria. We show through electron microscopy that plant cell walls are visibly degraded in the bottom section of fungus gardens and refuse dumps, and that bacteria are more abundant in these sections. We also consistently isolated cellulolytic bacteria from all sections of fungus gardens. Finally, we show by culture-dependent and electron microscopy analysis that the fungus garden pellets carried by recently mated queens are colonized by fungus garden-associated bacteria. Taken together, our results indicate that cellulose is degraded in fungus gardens, and that fungus garden bacteria that may contribute to this deconstruction are vertically transmitted by new queens. PMID- 29034863 TI - The O-antigen structure of bacterium Comamonas aquatica CJG. AB - Genus Comamonas is a group of bacteria that are able to degrade a variety of environmental waste. Comamonas aquatica CJG (C. aquatica) in this genus is able to absorb low-density lipoprotein but not high-density lipoprotein of human serum. Using 1H and 13C NMR spectroscopy, we found that the O-polysaccharide (O antigen) of this bacterium is comprised of a disaccharide repeat (O-unit) of d glucose and 2-O-acetyl-l-rhamnose, which is shared by Serratia marcescens O6. The O-antigen gene cluster of C. aquatica, which is located between coaX and tnp4 genes, contains rhamnose synthesis genes, glycosyl and acetyl transferase genes, and ATP-binding cassette transporter genes, and therefore is consistent with the O-antigen structure determined here. PMID- 29034864 TI - Evaluation of two commercial real-time PCR assays for detection of carbapenemase genes in Enterobacteriaceae. AB - The implementation of PCR for the detection of carbapenemase genes enables rapid results with significant epidemiological implications. Two commercial real-time PCR assays, the Hylabs Hy-CRE and Sacace MDR MBL+KPC/OXA, were evaluated for the detection of the genes blaKPC, blaVIM, blaNDM, blaIMP and blaOXA-48 carbapenemasein a collection of 96 carbapenem-resistant Enterobacteriaceae strains with different resistant mechanisms. Both assays exhibited excellent diagnostic performance, with 100 % sensitivity and specificity. PMID- 29034865 TI - Patients Attending Emergency Departments. AB - BACKGROUND: The number of patients in emergency departments has risen steadily in recent years, with a particular increase in patients not requiring urgent treatment. The aim of this study is to characterize this group of patients with respect to their sociodemographic features, health status, and reasons for attending an emergency department. METHODS: PiNo Nord is a cross-sectional observational study representing two full working weeks in five different hospitals. Patients were questioned in personal interviews, and medical diagnoses were documented. The data were analyzed with multivariate logistic regressions in mixed multilevel models. Predictors for the subjectively perceived treatment urgency were identified by stepwise backward selection. RESULTS: The 1175 patients questioned had an average age of 41.8 years and 52.9% were male. 54.7% said the degree of their treatment urgency was low. 41.3% had visited the emergency department on their own initiative, 17.0% on the advice or referral of their primary care physician, and 8.0% on the advice or referral of a specialist. The strongest predictors for low subjective treatment urgency were musculoskeletal trauma (odds ratio [OR] 2.18), skin conditions (OR 2.15), and the momentary unavailability of a primary care physician (OR 1.70). CONCLUSION: More than half of the patients do not think their condition requires urgent treatment and thus do not meet the definition of a medical emergency. Patients' reasons for visiting the emergency department are varied; aside from the treatment urgency of the health condition itself, the reason may lie in perceived structural circumstances and individual preferences. PMID- 29034866 TI - The Health Effects of Aluminum Exposure. AB - BACKGROUND: Aluminum is regularly taken up with the daily diet. It is also used in antiperspirants, as an adjuvant for vaccination, and in desensitization procedures. In this review, we present the scientifically documented harmful effects of aluminum on health and the threshold values associated with them. METHODS: This review is based on publications retrieved by a selective search of the PubMed and SCOPUS databases on the topic of aluminum in connection with neurotoxicity, Alzheimer's disease, and breast cancer, as well as on the authors' personal experience in occupational and environmental medicine. RESULTS: The reference values for the internal aluminum load (<15 MUg/L in urine, <5 MUg/L in serum) are especially likely to be exceeded in persons with occupational exposure. The biological tolerance value for occupational exposure is 50 MUg of aluminum per gram of creatinine in the urine. For aluminum welders and workers in the aluminum industry, declining performance in neuropsychological tests (attention, learning, memory) has been found only with aluminum concentrations exceeding 100 MUg/g creatinine in the urine; manifest encephalopathy with dementia was not found. Elevated aluminum content has been found in the brains of persons with Alzheimer's disease. It remains unclear whether this is a cause or an effect of the disease. There is conflicting evidence on carcinogenicity. The contention that the use of aluminum-containing antiperspirants promotes breast cancer is not supported by consistent scientific data. CONCLUSION: The internal aluminum load is measured in terms of the concentration of aluminum in urine and blood. Keeping these concentrations below the tolerance values prevents the development of manifest and subclinical signs of aluminum toxicity. Large-scale epidemiologic studies of the relationship between aluminum-containing antiperspirants and the risk of breast cancer would be desirable. PMID- 29034867 TI - Pyogenic Granuloma of the Vermilion of the Upper Lip. PMID- 29034868 TI - Filamentary Keratitis as Indication. PMID- 29034869 TI - Further Symptoms of Sjogren's Syndrome. PMID- 29034870 TI - In Reply. PMID- 29034871 TI - A Rare Cause of Ileus in a Two-Year-Old Boy. PMID- 29034872 TI - Particularities of Goodpasture Syndrome. PMID- 29034873 TI - In Reply. PMID- 29034875 TI - Treatment of displaced intra-articular calcaneus fractures: a current concepts review. AB - Displaced Intra-Articular Calcaneus fractures (DIACFs) represent a source of tremendous disability to the patient, economic burden to the society and a treatment challenge to the average orthopaedic surgeon. To date, no single approach is universally applicable to all calcaneus fractures. Despite a plethora of published meta-analyses and recent randomized controlled trials, the literature is still unclear and offers conflicting recommendations. The aim of this current concepts review is to assess the latest available data and offer pragmatic and practical recommendations to address some of the issues surrounding DIACFs. PMID- 29034874 TI - Pathogenesis of Plasmodium berghei ANKA infection in the gerbil (Meriones unguiculatus) as an experimental model for severe malaria. AB - BACKGROUND: As the quest to eradicate malaria continues, there remains a need to gain further understanding of the disease, particularly with regard to pathogenesis. This is facilitated, apart from in vitro and clinical studies, mainly via in vivo mouse model studies. However, there are few studies that have used gerbils (Meriones unguiculatus) as animal models. Thus, this study is aimed at characterizing the effects of Plasmodium berghei ANKA (PbA) infection in gerbils, as well as the underlying pathogenesis. METHODS: Gerbils, 5-7 weeks old were infected by PbA via intraperitoneal injection of 1 * 106 (0.2 mL) infected red blood cells. Parasitemia, weight gain/loss, hemoglobin concentration, red blood cell count and body temperature changes in both control and infected groups were monitored over a duration of 13 days. RNA was extracted from the brain, spleen and whole blood to assess the immune response to PbA infection. Organs including the brain, spleen, heart, liver, kidneys and lungs were removed aseptically for histopathology. RESULTS: Gerbils were susceptible to PbA infection, showing significant decreases in the hemoglobin concentration, RBC counts, body weights and body temperature, over the course of the infection. There were no neurological signs observed. Both pro-inflammatory (IFNgamma and TNF) and anti-inflammatory (IL-10) cytokines were significantly elevated. Splenomegaly and hepatomegaly were also observed. PbA parasitized RBCs were observed in the organs, using routine light microscopy and in situ hybridization. CONCLUSION: Gerbils may serve as a good model for severe malaria to further understand its pathogenesis. PMID- 29034877 TI - Generation of an induced pluripotent stem cell (iPSC) line from a patient with autosomal dominant retinitis pigmentosa due to a mutation in the NR2E3 gene. AB - A human iPSC line was generated from fibroblasts of a patient affected with autosomal dominant Retinitis Pigmentosa (RP) carrying the mutation p.Gly56Arg in the NR2E3 gene. The transgene-free iPSCs were generated with the human OSKM transcription factors using the Sendai-virus reprogramming system. iPSCs contained the expected c.166G>A substitution in exon 2 of NR2E3, expressed the expected pluripotency markers, displayed in vivo differentiation potential to the three germ layers and had normal karyotype. This cellular model will provide a powerful tool to study the pathogenesis of NR2E3-associated RP. Resource table. PMID- 29034876 TI - Quantifying the contribution of Plasmodium falciparum malaria to febrile illness amongst African children. AB - Suspected malaria cases in Africa increasingly receive a rapid diagnostic test (RDT) before antimalarials are prescribed. While this ensures efficient use of resources to clear parasites, the underlying cause of the individual's fever remains unknown due to potential coinfection with a non-malarial febrile illness. Widespread use of RDTs does not necessarily prevent over-estimation of clinical malaria cases or sub-optimal case management of febrile patients. We present a new approach that allows inference of the spatiotemporal prevalence of both Plasmodium falciparum malaria-attributable and non-malarial fever in sub-Saharan African children from 2006 to 2014. We estimate that 35.7% of all self-reported fevers were accompanied by a malaria infection in 2014, but that only 28.0% of those (10.0% of all fevers) were causally attributable to malaria. Most fevers among malaria-positive children are therefore caused by non-malaria illnesses. This refined understanding can help improve interpretation of the burden of febrile illness and shape policy on fever case management. PMID- 29034879 TI - Induced pluripotent stem cells derived from an autosomal dominant lateral temporal epilepsy (ADLTE) patient carrying S473L mutation in leucine-rich glioma inactivated 1 (LGI1). AB - Autosomal dominant lateral temporal epilepsy (ADLTE) is an inherited epileptic syndrome, and it is associated with mutations of leucine-rich glioma inactivated 1 (LGI1) gene. The underlying mechanisms of ADLTE are still unknown, as human neurons are difficult to obtain as a research tool. Human induced pluripotent stem cells (iPSCs) allow the generation of patient-derived neuronal cells in a dish, and can be a promising tool to model ADLTE. Here, we report the establishment of human iPSCs from an ADLTE patient carrying LGI1 mutation (c.1418C>T, p.Ser473Leu). PMID- 29034878 TI - Generation of an induced pluripotent stem cell line (CSCRMi001-A) from a patient with a new type of limb-girdle muscular dystrophy (LGMD) due to a missense mutation in POGLUT1 (Rumi). AB - Recently, a new type of limb-girdle muscular dystrophy (LGMD type 2Z) has been identified due to a missense mutation in POGLUT1 (protein O-glucosyltransferase Rumi), an enzyme capable of adding glucose to a distinct serine residue of epidermal growth factor-like repeats containing a C-X-S-X-(P/A)-C consensus sequence such as Notch receptors. Affected patients demonstrate reduced Notch signaling, decreased muscle stem cell pool and hypoglycosylation of alpha dystroglycan, leading to LGMD phenotype. Here we report the generation and characterization of an iPSC line (CSCRMi001-A) from a LGMD-2Z patient with missense mutation in POGLUT1 which can be used for in vitro disease modeling. PMID- 29034880 TI - Generation of induced pluripotent stem cell (iPSC) line from a patient with triple negative breast cancer with hereditary exon 17 deletion of BRCA1 gene. AB - BRCA1 germline mutation confers hereditary predisposition for breast and ovarian cancer. To understand the physiopathology of mammary and ovarian epithelial cancer transformation, and to identify early driver molecular events, we have generated an iPSC line from a patient carrying a germline exon 17 deletion in BRCA1 gene (BRAC1Ex17 iPSC) in a high-risk family context. Blood cells were reprogrammed used non-integrative virus of Sendai. The BRCA1-deleted iPSC had normal karyotype, harboured a deletion in the exon 17 of the BRCA1 gene, expressed pluripotent hallmarks and had the differentiation capacity into the three germ layers. PMID- 29034881 TI - Generation of induced pluripotent stem cells derived from an autosomal dominant polycystic kidney disease patient with a p.Ser1457fs mutation in PKD1. AB - Autosomal dominant polycystic kidney disease is one of the most prevalent forms of inherited cystic kidney disease, and can be characterized by kidney cyst formation and enlargement. Here we report the generation of a Type 1 ADPKD disease iPS cell line, IBMS-iPSC-012-12, which retains the conserved deletion of PKD1, normal karyotype and exhibits the properties of pluripotent stem cells such as ES-like morphology, expression of pluripotent markers and capacity to differentiate into all three germ layers. Our results show that we have successfully generated a patient-specific iPS cell line with a mutation in PKD1 for study of renal disease pathophysiology. PMID- 29034882 TI - Generation of human induced pluripotent stem cell lines from human dermal fibroblasts using a modified RNA system. AB - We generated human induced pluripotent stem cells (KSCBi002-B and KSCBi002-B-1) from the dermal fibroblasts of a donor using a modified RNA-based gene delivery method. According to GTG-banding analysis, the generated KSCBi002-B line has a cytogenetic abnormality (46,XY, t(1;4)(q21;q25)) that is distinct from that of the donor, whereas KSCBi002-B-1 has a normal karyotype (46,XY). These cell lines can be useful as a model for characterizing the hiPSCs generated by a non-viral and non-integrative system, or as a chromosomal balanced translocation model. These two cell lines are registered and available from the National Stem Cell Bank, Korea National Institute of Health. PMID- 29034883 TI - Establishment of a congenital tooth agenesis related gene MSX1 knockout human embryonic stem cell lines by CRISPR-Cas9 technology. AB - Human MSX1 gene is mapped to chromosome 4 and encodes a 303aa homeobox protein MSX1. MSX1 expression appears during early tooth development of vertebrate embryogenesis. Mutations in this protein are related to human tooth anomalie, cleft lip and palate and congenital ectodermal dysplasia syndrome. Most of the confirmed pathogenic mutations are located in exon2 encoded homeobox domain. Here, we report the establishment of MSX1 gene knockout human embryonic stem (hES) cell lines by CRISPR-Cas9 technology. These cell lines provide good materials for further studies of the roles MSX1 plays in human tooth development and congenital tooth agenesis. PMID- 29034884 TI - Generation of six multiple sclerosis patient-derived induced pluripotent stem cell lines. AB - Multiple sclerosis (MS) is considered a chronic autoimmune disease of the central nervous system that leads to gliosis, demyelination, axonal damage and neuronal death. The MS disease aetiology is unknown, though a polymorphism of the TNFRSF1A gene, rs1800693, is known to confer an increased risk for MS. Using retroviral delivery of reprogramming transgenes, we generated six MS patient-specific iPSC lines with two distinct genotypes, CC or TT, of the polymorphism rs1800693. iPSC lines had normal karyotype, expressed pluripotency genes and differentiated into the three germ layers. These lines offer a good tool to study MS pathomechanisms and for drug testing. PMID- 29034885 TI - Generation and characterization of a human induced pluripotent stem (iPS) cell line derived from an acute myeloid leukemia patient evolving from primary myelofibrosis carrying the CALR 52bp deletion and the ASXL1 p.R693X mutation. AB - Peripheral blood sample was donated by a 61years old female patient diagnosed with acute myeloid leukemia secondary to a primary myelofibrosis harboring the 52 bp deletion in the CALR gene (c.1092_1143del, p.L367fs*46) and the R693X mutation in the ASXL1 gene (c.2077C>T, p.R693X). CD34+ cells were isolated from the sample and subjected to the reprogramming procedure by using the Sendai virus carrying the reprogramming factors Oct3/4, Sox2, Klf4 and c-Myc. iPS colonies generated retained the original mutations and displayed all the features of bona fide iPS cells. PMID- 29034886 TI - Generation and characterization of human induced pluripotent stem cell (hiPSC) lines from an Alzheimer's disease (ASUi001-A) and non-demented control (ASUi002 A) patient homozygous for the Apolipoprotein e4 (APOE4) risk variant. AB - Although the majority of late-onset Alzheimer's disease (AD) patients are labeled sporadic, multiple genetic risk variants have been identified, the most powerful and prevalent of which is the e4 variant of the Apolipoprotein E (APOE) gene. Here, we generated human induced pluripotent stem cell (hiPSC) lines from the peripheral blood mononuclear cells (PBMCs) of a clinically diagnosed AD patient [ASUi001-A] and a non-demented control (NDC) patient [ASUi002-A] homozygous for the APOE4 risk allele. These hiPSCs maintained their original genotype, expressed pluripotency markers, exhibited a normal karyotype, and demonstrated the ability to differentiate into cells representative of the three germ layers. PMID- 29034887 TI - Generation of three miR-122 knockout lines from a human embryonic stem cell line. AB - miR-122 is the most abundant miRNA in the human liver, accounting for 52% of the entire hepatic miRNome. Previous studies have demonstrated that miR-122 plays key roles in hepatocyte growth, metabolism, and homeostasis. Here, we created three miR-122 knockout human embryonic stem cell line lines, WAe001-A-7, WAe001-A-8, and WAe001-A-9, using the CRISPR/Cas9 technique. These mutated cell lines retained their pluripotency, in vitro differentiation potential, normal morphology, and karyotype. PMID- 29034888 TI - Generation of two MEN1 knockout lines from a human embryonic stem cell line. AB - The MEN1 gene is cytogenetically located at 11q13.1 and encodes the nuclear protein menin, which is involved in cell proliferation, apoptosis, differentiation, and metabolism. Here, we generated two MEN1 knockout human embryonic stem cell lines, WAe001-A-4 and WAe001-A-5, by targeting exon-2 and exon-9 of MEN1 using the CRISPR/Cas9 technique. These cell lines maintained their pluripotency, in vitro differentiation potential, normal morphology, and karyotype. These human MEN1-mutated cell lines not only enlarge the pool of lab resources but also provide ideal models to dissect the detailed physio pathological roles of the menin protein. PMID- 29034889 TI - Generation of a pig induced pluripotent stem cell (piPSC) line from embryonic fibroblasts by incorporating LIN28 to the four transcriptional factor-mediated reprogramming: VSMUi001-D. AB - Pig induced pluripotent stem cell (piPSC) line was generated from embryonic fibroblast cells using retroviral transduction approaches carrying human transcriptional factors: OCT4, SOX2, KLF4, c-MYC and LIN28. The generated piPSC line, VSMUi001-D, was positive for alkaline phosphatase activity and expressed the pluripotency associated transcription factors including OCT4, SOX2, NANOG and surface markers SSEA-1, all iPSC hallmarks of authenticity. Furthermore, VSMUi001 D exhibited a normal karyotype and formed embryoid bodies in vitro and teratomas in vivo. Upon cardiac differentiation, VSMUi001-D displayed spontaneous beating and expressed cardiomyocyte markers, like cardiac Troponin T. PMID- 29034890 TI - Derivation of a disease-specific human induced pluripotent stem cell line from a biliary atresia patient. AB - Biliary atresia (BA) is a common cause of pediatric end-stage liver disease. While its etiology is not yet clear, evidence has suggested that BA results from interactions between genetic susceptibility and environmental factors. Disease relevant human cellular models of BA will facilitate identification of both genetic and environmental factors that are important for disease prevention and treatment. Here we report the generation of a human induced pluripotent stem cell line from a BA patient using episomal vectors. Patient-specific BA iPSC lines provide valuable tools for disease mechanism study and drug development. PMID- 29034891 TI - Generation of induced pluripotent stem cells (iPSC) from an atrial fibrillation patient carrying a KCNA5 p.D322H mutation. AB - Atrial fibrillation (AF) is the most common sustained arrhythmia associated with several cardiac risk factors, but increasing evidences indicated a genetic component. Indeed, genetic variations of the atrial specific KCNA5 gene have been identified in patients with early-onset lone AF. To investigate the molecular mechanisms underlying AF, we reprogrammed to pluripotency polymorphonucleated leukocytes isolated from the blood of a patient carrying a KCNA5 p.D322H mutation, using a commercially available non-integrating system. The generated iPSCs expressed pluripotency markers and differentiated toward cells belonging to the three embryonic germ layers. Moreover, the cells showed a normal karyotype and retained the p.D322H mutation. PMID- 29034892 TI - Generation of a human induced pluripotent stem cell line from a 65-year old healthy female donor with Chinese Han genetic background. AB - Peripheral blood mononuclear cells (PBMC) were collected from a 65-year old healthy woman with Chinese Han genetic background. The PBMCs were reprogrammed with the human OKSM transcription factors using the non-integrating episomal vector system. The transgene-free iPSC showed pluripotency verified by immunocytochemistry for pluripotency markers and differentiated spontaneously toward the 3 germ layers in vitro. Furthermore, the iPSC line showed normal karyotype. The iPSC line can be used as control in disease mechanism studies. Resource table. PMID- 29034893 TI - Establishment of DYT5 patient-specific induced pluripotent stem cells with a GCH1 mutation. AB - Peripheral blood mononuclear cells (PBMCs) were collected from a clinically diagnosed 20-year-old dystonia patient with a GCH1 mutation (DYT5). Episomal vectors were used to introduce reprogramming factors (OCT3/4, SOX2, KLF4, L-MYC, LIN28, and p53 carboxy-terminal dominant-negative fragment) to the PBMCs. The generated iPSCs expressed pluripotency markers, and were capable of differentiating into derivates of all three germ layers in vitro. The iPSC line also showed a normal karyotype and preserved the GCH1 mutation. This cellular model can provide opportunities to perform pathophysiological studies for aberrant dopamine metabolism-related disorders. PMID- 29034894 TI - Induced pluripotent stem cells derived from a patient with familial idiopathic basal ganglia calcification (IBGC) caused by a mutation in SLC20A2 gene. AB - Idiopathic basal ganglia calcification (IBGC), also known as Fahr disease or primary familial brain calcifications (PFBC), is a rare neurodegenerative disorder characterized by calcium deposits in basal ganglia and other brain regions, causing neuropsychiatric and motor symptoms. We established human induced pluripotent stem cells (iPSCs) from an IBGC patient. The established IBGC iPSCs carried SLC20A2 c.1848G>A mutation (p.W616* of translated protein PiT2), and also showed typical iPSC morphology, pluripotency markers, normal karyotype, and the ability of in vitro differentiation into three-germ layers. The iPSC line will be useful for further elucidating the pathomechanism and/or drug development for IBGC. PMID- 29034895 TI - Generation of induced pluripotent stem cell (iPSC) line from Charcot-Marie-Tooth disease patient with MPZ mutation (CMT1B). AB - Charcot-Marie-Tooth disease (CMT1B) is an inherited neurological disorder caused by mutation of the myelin protein zero (MPZ) gene. We generated an induced pluripotent stem cell (iPSC) line from an 81-year-old patient with CMT1B by electroporating of lymphoblastoid cell lines with episomal plasmids encoding OCT4, SOX2, KLF4, L-MYC, LIN28, and p53-targeting shRNA. The established iPSCs expressed various pluripotency markers, demonstrated the potential to differentiate into cells of the three germ layers in vitro, had a normal karyotype and retained the MPZ mutation. PMID- 29034897 TI - Generation of iPSC line from desmin-related cardiomyopathy patient carrying splice site mutation of DES gene. AB - Human iPSC line was generated from patient-specific adipose tissue-derived mesenchymal multipotent stromal cells carrying desmin (DES) gene heterozygous splice site mutation using non-integrative reprogramming method. Reprogramming factors OCT4, KLF4, SOX2, CMYC were delivered using Sendai viruses. iPSCs were characterized by sequencing, karyotype analysis, STR analysis, immunocytochemistry, RT-PCR and teratoma formation. PMID- 29034896 TI - Generation of induced pluripotent stem cells (ARO-iPSC1-11) from a patient with autosomal recessive osteopetrosis harboring the c.212+1G>T mutation in SNX10 gene. AB - Pathogenic sequence variants in the Sorting Nexin 10 (SNX10) gene have been associated with autosomal recessive osteopetrosis (ARO) in human. In this study, an induced pluripotent stem cell (iPSC) line (ARO-iPSC1-11) was generated from an ARO patient carrying the homozygous c.212+1G>T mutation in SNX10, using a retroviral-based reprogramming protocol. Characterization confirmed that the generated iPSCs expressed pluripotency markers, displayed normal karyotype, showed pluripotent differentiation capacity and retained the targeted mutation. Disease modeling with this ARO patient-specific iPSC line will shed further light on the critical role of the SNX10 mutation in ARO development. PMID- 29034898 TI - Generation of induced pluripotent stem cells (iPSC) from an atrial fibrillation patient carrying a PITX2 p.M200V mutation. AB - Atrial fibrillation (AF) is the most common sustained arrhythmia associated with several cardiac risk factors, but increasing evidences indicated a genetic component. Indeed, genetic variations of the specific PITX2 gene have been identified in patients with early-onset AF. To investigate the molecular mechanisms underlying AF, we reprogrammed to pluripotency polymorphonucleated leukocytes isolated from the blood of a patient carrying a PITX2 p.M200V mutation, using a commercially available non-integrating expression system. The generated iPSCs expressed pluripotency markers and differentiated toward cells belonging to the three embryonic germ layers. Moreover, the cells showed a normal karyotype and retained the PITX2 p.M200V mutation. PMID- 29034899 TI - Establishment of a human DOA 'plus' iPSC line, IISHDOi003-A, with the mutation in the OPA1 gene: c.1635C>A; p.Ser545Arg. AB - We have generated a human iPSC line IISHDOi003-A from fibroblasts of a patient with a dominant optic atrophy 'plus' phenotype, harbouring a heterozygous mutation, c.1635C>A; p.Ser545Arg, in the OPA1 gene. Reprogramming factors Oct3/4, Sox2, Klf4, and c-Myc were delivered using Sendai virus. PMID- 29034900 TI - Generation of iPSC line from patient with arrhythmogenic right ventricular cardiomyopathy carrying mutations in PKP2 gene. AB - Human iPSC line was generated from patient-specific adipose tissue-derived mesenchymal multipotent stromal cells carrying two mutations in plakophilin-2 (PKP2) gene using non-integrative reprogramming method. Reprogramming factors OCT4, KLF4, SOX2, CMYC were delivered using Sendai viruses. Pluripotency was confirmed in vitro using immunofluorescence and RT-PCR analysis and in vivo by teratoma assay. The reported iPSC line could be useful tool for in vitro modeling of arrhythmogenic right ventricular cardiomyopathy. PMID- 29034902 TI - A robust statistical framework for instantaneous electroencephalogram phase and frequency estimation and analysis. AB - OBJECTIVE: The instantaneous phase (IP) and instantaneous frequency (IF) of the electroencephalogram (EEG) are considered as notable complements for the EEG spectrum. The calculation of these parameters commonly includes narrow-band filtering, followed by the calculation of the signal's analytical form. The calculation of the IP and IF is highly susceptible to the filter parameters and background noise level, especially in low analytical signal amplitudes. The objective of this study is to propose a robust statistical framework for EEG IP/IF estimation and analysis. APPROACH: Herein, a Monte Carlo estimation scheme is proposed for the robust estimation of the EEG IP and IF. It is proposed that any EEG phase-related inference should be reported as an average with confidence intervals obtained by repeating the IP and IF estimation under infinitesimal variations (selected by an expert), in algorithmic parameters such as the filter's bandwidth, center frequency and background noise level. In the second part of the paper, a stochastic model consisting of the superposition of narrow band foreground and background EEG is used to derive analytically probability density functions of the instantaneous envelope (IE) and IP of EEG signals, which justify the proposed Monte Carlo scheme. MAIN RESULTS: The instantaneous analytical envelope of the EEG, which has been empirically used in previous studies, is shown to have a fundamental impact on the accuracy of the EEG phase contents. It is rigorously shown that the IP/IF estimation quality highly depends on the IE and any phase/frequency interpretations in low IE are statistically unreliable and require a hypothesis test. SIGNIFICANCE: The impact of the proposed method on previous studies, including time-domain phase synchrony, phase resetting, phase locking value and phase amplitude coupling are studied with examples. The findings of this research can set forth new standards for EEG phase/frequency estimation and analysis techniques. PMID- 29034903 TI - Swimming without a spine: computational modeling and analysis of the swimming hydrodynamics of the Spanish Dancer. AB - Incompressible flow simulations are used to study the swimming of a Spanish Dancer (Hexabranchus sanguineus), a soft-bodied invertebrate marine gastropod that swims by combining body pitching with undulations of its large mantle. A simple model based on a field video is employed as the basis for the model and coupling of the flow with the body acceleration enables us to examine the free swimming of this animal. Simulations indicate propulsive efficiencies up to about 57% and terminal swimming speeds of 1.33 body lengths per cycle. Examination of the effect of body planform on the swimming hydrodynamics suggests that the planform of this animal is likely adapted to enhance its swimming performance. PMID- 29034901 TI - Generation of a KCNJ11 homozygous knockout human embryonic stem cell line WAe001 A-12 using CRISPR/Cas9. AB - The ATP-sensitive potassium channel is an octameric complex, and one of its subunits, namely Kir6.2, is encoded by the KCNJ11 gene. Mutations in KCNJ11 result in hyperinsulinism or diabetes mellitus, associated with abnormal insulin secretion. Here, using CRISPR/Cas9 editing, we established a homozygous mutant KCNJ11 cell line, WAe001-A-12, which was generated by a 62-bp deletion in the coding sequence of the human embryonic stem cell line H1. It was confirmed that this deletion in the KCNJ11 gene did not affect the protein expression levels of key pluripotent factors. Additionally, normal karyotype and differentiation potency were observed for the cell line. PMID- 29034904 TI - Structural, magnetic and electronic properties of pulsed-laser-deposition grown SrFeO3-delta thin films and SrFeO3-delta /La2/3Ca1/3MnO3 multilayers. AB - We studied the structural, magnetic and electronic properties of SrFeO3 delta (SFO) thin films and SrFeO3-delta /La2/3Ca1/3MnO3 (LCMO) superlattices that have been grown with pulsed laser deposition (PLD) on La0.3Sr0.7Al0.65Ta0.35O3 (LSAT) substrates. X-ray reflectometry and scanning transmission electron microscopy (STEM) confirm the high structural quality of the films and flat and atomically sharp interfaces of the superlattices. The STEM data also reveal a difference in the interfacial layer stacking with a SrO layer at the LCMO/SFO and a LaO layer at the SFO/LCMO interfaces along the PLD growth direction. The X-ray diffraction (XRD) data suggest that the as grown SFO films and SFO/LCMO superlattices have an oxygen-deficient SrFeO3-delta structure with I4/ mmm space group symmetry delta <= 0.2). Subsequent ozone annealed SFO films are consistent with an almost oxygen stoichiometric structure (delta ~ 0). The electronic and magnetic properties of these SFO films are similar to the ones of corresponding single crystals. In particular, the as grown SrFeO3 delta films are insulating whereas the ozone annealed films are metallic. The magneto-resistance effects of the as grown SFO films have a similar magnitude as in the single crystals, but extend over a much wider temperature range. Last but not least, for the SFO/LCMO superlattices we observe a rather large exchange bias effect that varies as a function of the cooling field. PMID- 29034906 TI - Neuroimmunology: ILC2s touch a nerve. PMID- 29034907 TI - Immune tolerance: A mother's greatest gift is TIM3. PMID- 29034908 TI - Author's Response to Letter to the Editor: Cerebral Hemorrhage Following Chiropractic Activator Treatment-Case Report and Review of the Literature. PMID- 29034909 TI - A universal and enzyme-free immunoassay platform for biomarker detection based on gold nanoparticle enumeration with a dark-field microscope. AB - Developing an enzyme-free, non-amplification strategy for biomarker detection with universality and easy implementation is of central importance in clinical diagnosis and therapeutic monitoring. Herein, we report for the first time a universal and enzyme-free magnetic bead-based sandwich-format immunoassay platform for biomarker detection by combining secondary antibody functionalized AuNPs and automatic AuNP counting readout. For the prostate specific antigen (PSA), the detection limit is found to be 1 ng mL-1, and the spike recoveries (n = 3) with 10% fetal bovine serum are 113.5% for 2 ng mL-1 and 107.7% for 10 ng mL 1. The assay also presents reasonable repeatability as indicated by the coefficient of variance of 13.1% with 5 measurements in 60 days. This strategy has been successfully applied to the determination of carcinoembryonic antigen (CEA) and alpha-fetoprotein (AFP), demonstrating the universality of this strategy. Our proposed non-amplification platform presents sensitivity comparable to that of the enzyme-linked immunosorbent assay (ELISA) with better repeatability; and more importantly, our method has better simplicity than most of the amplification-based methods, and thus is more suitable for routine analysis. The highlights of our work suggest that it is a promising method and would be potentially an alternative for ELISA in laboratories where routine analyses are intensively performed. PMID- 29034910 TI - From boron clusters to gold clusters: new label-free colorimetric sensors. AB - A fundamental boron cluster, [closo-B12H12]2-, mainly known as an inert agent for boron neutron capture therapy, can also serve as a bi-functional reductant and a capping agent for the formation of monodispersed size-controlled gold nanoparticles (AuNPs) under mild reaction conditions. The obtained AuNPs remained thermo-dynamically stable over 3 months, and exhibited high performance in phase transfer and sensing of heavy metal ions. PMID- 29034911 TI - Collision cross sections and ion structures: development of a general calculation method via high-quality ion mobility measurements and theoretical modeling. AB - Ion mobility mass spectrometry (IM-MS) has become an important tool for the structural investigation of ions in the gas phase. Accurate theoretical evaluation of ion collision cross sections (CCSs) is essential for the effective application of IM-MS in structural studies. However, current theoretical tools have limitations in accurately describing a broad range of ions from small molecules to macromolecules. Significant difficulties in developing theoretical tools for CCS calculations are associated with obtaining high-quality experimental data and molecular models. In this study, we present a general CCS calculation method by employing two drift-tube IM-MS (DTIM-MS) instruments and thorough molecular modeling procedures. It is demonstrated that an appropriate description of the van der Waals (vdW) interactions is important for accurate CCS calculations in helium drift gas. By utilizing the vdW potentials from molecular mechanics force fields, it is shown that both the appropriate vdW potential-forms and their parameters are necessary for the highly reliable CCS predictions of small molecules. We further show that specific characteristics of the vdW interaction potential become less influential on the calculated CCS with increasing ion size, and that the calculated CCS values for the macromolecules converge to the values at the hard-sphere limit. Based on these results, a general CCS calculation method is presented that can be applied to ions of various sizes and compositions for the gas-phase structural studies. PMID- 29034905 TI - The hygiene hypothesis in autoimmunity: the role of pathogens and commensals. AB - The incidence of autoimmune diseases has been steadily rising. Concomitantly, the incidence of most infectious diseases has declined. This observation gave rise to the hygiene hypothesis, which postulates that a reduction in the frequency of infections contributes directly to the increase in the frequency of autoimmune and allergic diseases. This hypothesis is supported by robust epidemiological data, but the underlying mechanisms are unclear. Pathogens are known to be important, as autoimmune disease is prevented in various experimental models by infection with different bacteria, viruses and parasites. Gut commensal bacteria also play an important role: dysbiosis of the gut flora is observed in patients with autoimmune diseases, although the causal relationship with the occurrence of autoimmune diseases has not been established. Both pathogens and commensals act by stimulating immunoregulatory pathways. Here, I discuss the importance of innate immune receptors, in particular Toll-like receptors, in mediating the protective effect of pathogens and commensals on autoimmunity. PMID- 29034912 TI - Shape effect-induced spiral superstructures in a self-assembled achiral disc-bent core amphiphile. AB - Herein, we aim to demonstrate the shape effect of a giant molecule on the self assembly of supramolecules. A bent-core (BC) molecule was covalently linked to a disc-like hexa-peri-hexabenzocoronene (HBC), giving a disc-bent core amphiphile. As a result, the induced hierarchical chirality driven by the shape effect on the forming columnar phase gives a two-dimensional nano-ribbon with spiral texture from double-stranded supracolumns. PMID- 29034913 TI - A proton-hopping charge storage mechanism of ionic one-dimensional coordination polymers for high-performance supercapacitors. AB - A proton-conducting coordination polymer of anionic one-dimensional (1D) chains of Zn2+ phosphate and protonated imidazole with the formula of [Zn(HPO4)(H2PO4)2](ImH2)2 has been used as a novel supercapacitor material in aqueous electrolytes. This material stores charges via a proton-hopping mechanism. PMID- 29034914 TI - Local water sensing: water exchange in bacterial photosynthetic reaction centers embedded in a trehalose glass studied using multiresonance EPR. AB - Using isotope labeled water (D2O and H217O) and pulsed W-band (94 GHz) high-field multiresonance EPR spectroscopies, such as ELDOR-detected NMR and ENDOR, the biologically important question of detection and quantification of local water in proteins is addressed. A bacterial reaction center (bRC) from Rhodobacter sphaeroides R26 embedded into a trehalose glass matrix is used as a model system. The bRC hosts the two native radical cofactor ions (primary electron donor) and (primary electron acceptor) as well as an artificial nitroxide spin label site specifically attached to the surface of the H-protein domain. The three paramagnetic reporter groups have distinctly different local environments. They serve as local probes to detect water molecules via magnetic interactions (electron-nuclear hyperfine and quadrupole) with either deuterons or 17O nuclei. bRCs were equilibrated in an atmosphere of different relative humidities allowing us to control precisely the hydration levels of the protein. We show that by using oxygen-17 labeled water quantitative conclusions can be made in contrast to using D2O which suffers from proton-deuterium exchange processes in the protein. From the experiments we also conclude that dry trehalose operates as an anhydrobiotic protein stabilizer in line with the "anchorage hypothesis" of bio protection. It predicts selective changes in the first solvation shell of the protein upon trehalose-matrix dehydration with subsequent changes in the hydrogen bonding network. Changes in hydrogen-bonding patterns usually have an impact on the global function of a biological system. PMID- 29034915 TI - Highly versatile heteroditopic ligand scaffolds for accommodating group 8, 9 & 11 heterobimetallic complexes. AB - Two highly versatile xanthene scaffolds containing pairs of heteroditopic ligands were found to be capable of accommodating a range of transition metal ions, including Au(i), Ir(i), Ir(iii), Rh(i), and Ru(ii) to generate an array of heterobimetallic complexes. The metal complexes were fully characterised and proved to be stable in the solid and solution state, with no observed metal-metal scrambling. Heterobimetallic complexes containing the Rh(i)/Ir(i) combinations were tested as catalysts for the two-step dihydroalkoxylation reaction of alkynediols and sequential hydroamination/hydrosilylation reaction of alkynamines. PMID- 29034916 TI - Syntheses and characterization of three new sulfides with large band gaps: acentric Ba4Ga4SnS12, centric Ba12Sn4S23 and Ba7Sn3S13. AB - The desirable development of infrared nonlinear optical (IR NLO) materials is to design new compounds which exhibit wide band gaps and strong second harmonic generation (SHG) responses. Herein, we report three new sulfides, Ba4Ga4SnS12 (1), Ba12Sn4S23 (2) and Ba7Sn3S13 (3), with wide band gaps of 2.90, 2.98 and 3.0 eV, respectively, which have been successfully synthesized for the first time. Significantly, compound 1 exhibited a large SHG coefficient (34 * KDP), illustrating a good balance between the band gap and the SHG response. Single crystal X-ray diffraction determined that compound 1 crystallizes in the non centrosymmetric space group P4[combining macron]21c and it was characterized as an interesting kite-shaped linkage motif of infinity[Ga4SnS12]. Compounds 2 and 3 crystallize in the space groups of P21c and Pnma, respectively. In addition, compounds 2 and 3 were characterized as zero-dimensional (0D) structures comprising isolated SnS4 tetrahedra with Ba2+ cations and S2- anions located between them. However, compound 2 contains extra disulfide S22- anions in its isolated structure. Moreover, the theoretical calculations demonstrated that SHG responses for compound 1 could be ascribed to the transitions from S-3p and Ga-4p states to Ba-5d, Ga-4p and Sn-5p states. By analysing the relationship between the structures and properties for Pb4Ga4GeS12-type compounds, it was concluded that site disorder could be an effective way to improve optical properties. PMID- 29034917 TI - beta-Sitosterol and stigmasterol ameliorate dextran sulfate sodium-induced colitis in mice fed a high fat Western-style diet. AB - Phytosterols, the plant analogues of cholesterol, widely occur in the human diet. In this study, we investigated and compared the effects of stigmasterol and beta sitosterol (both with purities >=95%) on dextran sulfate sodium (DSS)-induced colitis in C57BL/6J male mice fed a high fat Western-style diet. Mice treated with DSS developed severe mucosal colitis, with a marked distortion and crypt loss of colonic surface epithelium. Both beta-sitosterol and stigmasterol significantly inhibited colon shortening, lowered fecal hemoglobin content, and reduced the severity of colitis in the middle and distal colon (p < 0.05). These phytosterols also significantly suppressed the activation of nuclear factor-kappa B. They also significantly decreased colony stimulating factor-1 and the nuclear translocation of inflammatory master regulator nuclear factor-kappa B. Stigmasterol significantly lowered the colonic inflammation score and the expression of cyclooxygenase-2 and colony stimulating factor-1, while beta sitosterol was less or not effective. These results suggest that dietary intake of stigmasterol and beta-sitosterol ameliorates colitis. Such activities of stigmasterol and beta-sitosterol in humans remain to be investigated. PMID- 29034918 TI - Resveratrol: from diet to topical usage. AB - The stilbene derivative resveratrol (3,5,4'-trihydroxy-stilbene; RESV) has become the subject of interest of many researchers and the pharmaceutical industries due to its well-acclaimed beneficial biological activities. Although earlier research tended to focus on the effects of RESV on cardiovascular disorders, many other studies have described the beneficial effects of RESV in the areas of cancer chemoprevention and inflammation and interest of researchers on this compound is still increasing. It is now well accepted that the effect of RESV is not just due to its so called "antioxidant" activity but mainly (if not only) because of the ability of this compound to trigger cell signaling pathways and gene expression involved in cellular defense systems. Many "in vitro" studies on RESV did not take into account that although its oral absorption is about 75% it undergoes rapid metabolism and the concentration in the blood stream is almost undetectable. For this reason interest in the topical usage of RESV by cosmeceutical skin care brands has exponentially increased in the last decade reporting in general very promising results on its beneficial effect in protecting the skin from outdoor insults, but there is still some controversy on its topical usage mainly surrounding the concentration used. Therefore, more basic research on the topical application of RESV should be performed to better understand the way it prevents cutaneous damage and whether it could be recommended as a preventive skin aging agent for all skin insults. PMID- 29034919 TI - Supramolecular effects in self-assembled monolayers: general discussion. PMID- 29034920 TI - The active site for the water oxidising anodic iridium oxide probed through in situ Raman spectroscopy. AB - The structure of anodic iridium oxide (IrOx) under water oxidation was explored using in situ Raman spectroscopy and theoretical calculations. Isotopic substitution experiments and theoretical calculations confirmed formation of an Ir[double bond, length as m-dash]O species during oxygen evolution reaction. PMID- 29034921 TI - Targeted attachment of functional groups at Ge9 clusters via silylation reactions. AB - Molecules with low-valent Ge atoms are generally synthesized from organohalogen germanes as precursors. The Zintl phase K4Ge9 provides reactive building blocks for a targeted synthesis of germanium-rich molecules. The silylation of Ge9 clusters with chlorosilanes ClSiR2R', that carry unsaturated olefin groups R' leads to the introduction of olefinic side chains of variable lengths allowing for further reactions. The compounds K[Ge9{Si(SiMe3)3}2(SiPh2R')] (R' = CH[double bond, length as m-dash]CH2 (1); -(CH2)3CH[double bond, length as m dash]CH2 (2)) carry one such functionality, whereas K[Ge9(SiPh2R')3] (3 and 4) offer the possibility for an interconnection of clusters due to three functional groups on the Ge9 core. XPS measurements show that the silylated clusters are much more air-stable than the unsubstituted, bare cluster units. PMID- 29034922 TI - A new molecular design based on hybridized local and charge transfer fluorescence for highly efficient (>6%) deep-blue organic light emitting diodes. AB - A deep-blue emitter was developed by modifying carbazole nuclear positions C2 & C7 with a triphenylamine donor and C3 & C6 with a cyano acceptor. The molecular design features cross-conjugated localized and charge transfer chromophores which results in a hybridized local charge transfer (HLCT) excited state. An organic light emitting diode (OLED) using this material exhibited high external quantum efficiency (6.5%) with excellent color saturation (CIEy ~ 0.06) and small full width at half maximum (48 nm). PMID- 29034923 TI - Supramolecular systems at liquid-solid interfaces: general discussion. PMID- 29034924 TI - Trapping of superoxido cobalt and peroxido dicobalt species formed reversibly from CoII and O2. AB - The formation and spectroscopic characterization of a superoxido cobalt(iii) and a peroxido dicobalt(iii) species formed in the temperature dependent reversible reaction of a cobalt(ii) precursor with O2 is described. The electronic nature of each species is explored in their reactivity with organic substrates. PMID- 29034925 TI - Charge transport, interfacial interactions and synergistic mechanisms in BiNbO4/MWO4 (M = Zn and Cd) heterostructures for hydrogen production: insights from a DFT+U study. AB - In the 21st century, the growing demand of global energy is one of the key challenges. The photocatalytic generation of hydrogen has attracted extensive attention to discuss the increasing global demand for sustainable and clean energy. However, hydrogen evolution reactions normally use the economically expensive rare noble metals and the processes remain a challenge. Herein, low cost BiNbO4/MWO4(010) heterostructures are studied for the first time to check their suitability towards photocatalytic hydrogen production. A theoretical study with the aid of density functional theory (DFT) is used to investigate the synergistic effect, ionisation energy, electron affinities, charge transfer, electronic properties and the underlying mechanism for hydrogen generation of BiNbO4/MWO4(010) heterostructures. The experimental band gaps of bulk ZnWO4, CdWO4 and BiNbO4 are well reproduced using the DFT+U method. The calculated band edge position shows a type-II staggered band alignment and the charge transfer between BiNbO4 and MWO4 monolayers results in a large interfacial built-in potential, which will favour the separation of charge carriers in the heterostructures. The effective mass of the photoinduced holes is higher compared to the electrons, making the heterostructures useful in hydrogen production. The relatively low ionisation energy and electron affinity for the heterostructures compared to the monolayers make them ideal for photocatalysis applications due to their small energy barrier for the injection of electrons and creation of holes. The BiNbO4/MWO4(010) heterostructures are more suitable for photocatalytic hydrogen production due to their strong reducing power relative to the H+/H2O potential. This study sheds light on the less known BiNbO4/ZnWO4(010) heterostructures and the fully explored electronic and optical properties will pave way for future photocatalytic water splitting applications. PMID- 29034926 TI - Acid-etched layered double hydroxides with rich defects for enhancing the oxygen evolution reaction. AB - Water splitting is promising for energy storage and conversion, but the sluggish oxygen evolution reaction (OER) hinders its wide application. The search for efficient and low-cost electrocatalysts for oxygen evolution has been pursued owing to their significance for green energy generation and storage. Layered Double Hydroxide (LDH) based materials are promising for the OER to improve this weakness. However, the wide application of LDHs is limited by their electronic properties and active sites. Here we report a simple and promising method to improve the OER catalytic activity via an acid-base reaction, which resulted in an exfoliation process and multiple defects including Co, Fe and O vacancies. The acid etched LDHs exhibit better oxygen evolution performance than the pristine LDHs under alkaline conditions with a small Tafel slope and good durability. The acid etching improves the electronic structure and provides more active sites, which results in significant enhancement of OER activity. This work will open up a novel and inexpensive way to improve the catalytic performance in an alkaline substance. PMID- 29034927 TI - Exploring the role of GS-GOGAT cycle in microcystin synthesis and regulation - a model based analysis. AB - Toxic cyanobacteria blooms populate water bodies by consuming external nutrients and releasing cyanotoxins that are detrimental for other aquatic species, producing a significant impact on the plankton ecosystem and food web. To exercise population-level control of toxin production, understanding the biochemical mechanisms that explain cyanotoxin regulation within a bacterial cell is of utmost importance. In this study, we explore the mechanistic events to investigate the dependence of toxin microcystin on external nitrogen, a known regulator of the toxin, and for the first time, propose a kinetic model that analyzes the intracellular conditions required to ensure nitrogen dependence on microcystin. We hypothesize that the GS-GOGAT cycle is manipulated by variable influx of different intracellular metabolites that can either disturb or promote the balance between the enzyme microcystin synthetase and substrate glutamate to produce variable microcystin levels. As opposed to the popular notion that nitrogen starvation increases microcystin synthesis, our analyses suggest that under certain intracellular metabolite regimes, this relationship can either be completely lost or reversed. External nitrogen can only complement the conditions fixed by intracellular glutamate, glutamine and 2-oxoglutarate. This mechanistic understanding can provide an experimentally testable hypothesis for exploring the less-known biology of microcystin synthesis and designing specific interventions. PMID- 29034928 TI - Boosting up the electrical performance of low-grade PEDOT:PSS by optimizing non ionic surfactants. AB - Although PEDOT:PSS has already been applied to various electronic devices, commercialized PEDOT:PSS products having high conductivity are expensive, which is a considerable burden on device manufacturing. In this study, we optimize non ionic surfactants mixed in a PEDOT:PSS solution to upgrade a low-grade product of low conductivity to the level of a high-grade product of high conductivity. This study systematically investigates the phase diagram, morphology, conductivity, and mechanical stability of the PEDOT:PSS films according to the hydrophilicity of non-ionic surfactants. This study reveals that the conductivity of the PEDOT:PSS film varies greatly depending on the chemical structure of the surfactant and its weight fraction in the thin film. Under the optimum conditions (chemical structure and weight fraction) of the surfactant, the conductivity of the low value product could be improved to the conductivity level of the high value product. The electrical properties of the films were excellently stable even under the extreme cyclic bending tests at a bending radius of 1.5 mm. The low-grade and high grade products showed the same electrical performance when they were used in the Ag nanowires/PEDOT:PSS hybrid transparent electrodes. The results are expected to be applied immediately not only in the laboratory but also in various industrial fields. PMID- 29034929 TI - Wrinkling-to-delamination transition in thin polymer films on compliant substrates. AB - Compressing a thin, stiff film attached to a thick, compliant substrate can lead to a number of different modes of mechanical deformation depending upon the material properties of the system. In this article we explore direct transitions from surface wrinkling to buckle delamination, and provide a theoretical framework for understanding the conditions under which such transitions take place, as well as the resulting dimensions of the wrinkling-induced delamination. A key conclusion of this work is that the width of the delamination blister formed from a wrinkled film is relatively strain-independent, suggesting that delaminations can be used in such systems to measure the adhesion energy at the film-substrate interface. In addition, we demonstrate how the length and width of delaminations can be tailored through straightforward control of the substrate and film properties in the system, illustrating how wrinkling delaminations can be used for both thin film metrology and patterning applications. PMID- 29034930 TI - Chain dynamics and nanoparticle motion in attractive polymer nanocomposites subjected to large deformations. AB - The effect of large deformation on the chain dynamics in attractive polymer nanocomposites was investigated using neutron scattering techniques. Quasi elastic neutron backscattering measurements reveal a substantial reduction of polymer mobility in the presence of attractive, well-dispersed nanoparticles. In addition, large deformations are observed to cause a further slowing down of the Rouse rates at high particle loadings, where the interparticle spacings are slightly smaller than the chain dimensions, i.e. in the strongly confined state. No noticeable change, however, was observed for a lightly confined system. The reptation tube diameter, measured by neutron spin echo, remained unchanged after shear, suggesting that the level of chain-chain entanglements is not significantly affected. The shear-induced changes in the interparticle bridging reflect the slow nanoparticle motion measured by X-ray photon correlation spectroscopy. These results provide a first step for understanding how large shear can significantly affect the segmental motion in nanocomposites and open up new opportunities for designing mechanically responsive soft materials. PMID- 29034931 TI - Spontaneous symmetry breaking induced unidirectional rotation of a chain-grafted colloidal particle in the active bath. AB - Exploiting the energy of randomly moving active agents such as bacteria is a fascinating way to power a microdevice. Here we show, by simulations, that a chain-grafted disk-like colloidal particle can rotate unidirectionally and hence output work when immersed in a thin film of active particle suspension. The collective spontaneous symmetry breaking of chain configurations is the origin of the unidirectional rotation. Long persistence time, large propelling force and/or small rotating friction are keys to sustaining the collective broken symmetry and realizing the rotation. In the rotating state, we find very simple linear relations, e.g. between the mean angular speed and the propelling force. The time evolving asymmetry of chain configurations reveals that there are two types of non-rotating state. The basic phenomena are also observed in the macroscopic granular experiments, implying the generic nature of these phenomena. Our findings provide new insights into the collective spontaneous symmetry breaking in active systems with flexible objects and also open the way to conceive new soft/deformable microdevices. PMID- 29034932 TI - Design and development of multifunctional polyphosphoester-based nanoparticles for ultrahigh paclitaxel dual loading. AB - Multifunctional polyphosphoester-based nanoparticles capable of loading paclitaxel (PTX) both chemically and physically were prepared, achieving an ultrahigh equivalent PTX aqueous concentration of 25.30 mg mL-1. The dual-loaded nanoparticles were effective in killing cancer cells, which has the potential to minimize the amount of nanocarriers needed for clinical applications, due to their ultrahigh loading capacity. PMID- 29034933 TI - Isostaticity and the solidification of semiflexible polymer melts. AB - Using molecular dynamics simulations of a tangent-soft-sphere bead-spring polymer model, we examine the degree to which semiflexible polymer melts solidify at isostaticity. Flexible and stiff chains crystallize when they are isostatic as defined by appropriate degree-of-freedom-counting arguments. Semiflexible chains also solidify when isostatic if a generalized isostaticity criterion that accounts for the slow freezing out of configurational freedom as chain stiffness increases is employed. The configurational freedom associated with bond angles (theta) can be associated with the characteristic ratio Cinfinity = (1 + )/(1 - ). We find that the dependence of the average coordination number at solidification [Z(Ts)] on chains' characteristic ratio Cinfinity has the same functional form [Z ? a - b ln(Cinfinity)] as the dependence of the average coordination number at jamming [Z(phiJ)] on Cinfinity in athermal systems, suggesting that jamming-related phenomena play a significant role in thermal polymer solidification. PMID- 29034934 TI - Complex coacervates based on recombinant mussel adhesive proteins: their characterization and applications. AB - Complex coacervates are a dense liquid phase of oppositely charged polyions formed by the associative separation of a mixture of polyions. Coacervates have been widely employed in many fields including the pharmaceutical, cosmetic, and food industries due to their intriguing interfacial and bulk material properties. More recently, attempts to develop an effective underwater adhesive have been made using complex coacervates that are based on recombinant mussel adhesive proteins (MAPs) due to the water immiscibility of complex coacervates and the adhesiveness of MAPs. MAP-based complex coacervates contribute to our understanding of the physical nature of complex coacervates and they provide a promising alternative to conventional invasive surgical repairs. Here, this review provides an overview of recombinant MAP-based complex coacervations, with an emphasis on their characterization and the uses of such materials for applications in the fields of biomedicine and tissue engineering. PMID- 29034936 TI - Synergistic antiviral effect of curcumin functionalized graphene oxide against respiratory syncytial virus infection. AB - The diseases attributable to viruses remain a global burden. The respiratory syncytial virus (RSV), which is considered as the major viral pathogen of the lower respiratory tract of infants, has been implicated in severe lung disease. In this contribution, we developed a beta-cyclodextrin (CD) functionalized graphene oxide (GO) composite, which displayed excellent antiviral activity and could load curcumin efficiently. RSV, a negative-sense single-stranded enveloped RNA virus, was employed as a model virus to investigate the antiviral activity of multifunctional GO. Proved by the tissue culture infectious dose assay and immunofluorescence assay, the curcumin loaded functional GO was confirmed with highly efficient inhibition for RSV infection and great biocompatibility to the host cells. The results showed that the composite could prevent RSV from infecting the host cells by directly inactivating the virus and inhibiting the viral attachment, and possessed prophylactic and therapeutic effects towards the virus. Our data indicate that the composite may provide new insights into antiviral therapy for RSV infection. PMID- 29034935 TI - Hedgehog-mesenchyme gene signature identifies bi-modal prognosis in luminal and basal breast cancer sub-types. AB - Hedgehog signaling (Hh) has been shown to be hyper-activated in several cancers. However, active Hh signaling can promote or inhibit tumor growth; thus identification of markers beyond main canonical Hh target genes is needed to improve patient selection and clinical outcome in response to Hh inhibitors. Cancer-associated fibroblasts (CAFs) have been linked with tumor progression and beneficial response to Hh inhibitors. Thus, we hypothesized that genes associated with Hh-activated CAFs can be used for stratification of tumors that will benefit from Hh inhibitors. In this work, we evaluated a 15-gene fingerprint that combines Hh and mesenchymal genes associated with CAF phenotype to profile breast cancer sub-types based on gene expression patterns among clustered groups. About 3800 cancer samples were evaluated using random forest models and linear discriminant analysis to sort breast cancer by subtypes and therapeutic approach. The results showed that the Hh-mesenchyme gene fingerprint has a highly sensitive and differential expression pattern among basal and luminal A sub-groups. Basal samples with high levels of Hh target genes had better prognosis than luminal A samples. Luminal A samples with a tendency towards Hh signaling suppression had higher overall and disease-free survival rates particularly if deprived of hormone therapy. Hh transcriptional repressor GLI3 and signaling activator SMO were the top 2 genes for discriminating among samples with active Hh signaling in human breast cancer subtypes and Hh-inhibitor resistant tumors. Caveolin-1 (CAV1), a gene with low expression in CAFs, shows strong correlation with active Hh signaling and discrimination among survival curves in luminal A patients with active or inactive Hh signaling. Our data suggest that CAV1 is an important gene for monitoring Hh inhibition in tumors and support further stratification by hormone therapy status prior to use of Hh inhibitors. PMID- 29034937 TI - Hybrid particle-continuum simulations coupling Brownian dynamics and local dynamic density functional theory. AB - We present a multiscale hybrid particle-field scheme for the simulation of relaxation and diffusion behavior of soft condensed matter systems. It combines particle-based Brownian dynamics and field-based local dynamics in an adaptive sense such that particles can switch their level of resolution on the fly. The switching of resolution is controlled by a tuning function which can be chosen at will according to the geometry of the system. As an application, the hybrid scheme is used to study the kinetics of interfacial broadening of a polymer blend, and is validated by comparing the results to the predictions from pure Brownian dynamics and pure local dynamics calculations. PMID- 29034938 TI - Comparative density functional theory-density functional tight binding study of fullerene derivatives: effects due to fullerene size, addends, and crystallinity on band structure, charge transport and optical properties. AB - We present a systematic comparative density functional theory-density functional tight binding study of multiple derivatives of C60 and C70 with different addends, in molecular as well as solid state. In particular, effects due to fullerene size, type and number of addends, and of crystallinity on band structure, charge transport, and optical properties are investigated. These are important, in particular, for rational selection of fullerene derivatives as acceptor and electron transport layers in organic as well as planar inverted perovskite solar cells. We find that by the choice of type and number of addends, one can modulate the LUMO within 0.4 eV. Changes in the HOMO can reach 0.7 eV. Substituting C70 for C60 results in destabilization of the HOMO by about 0.1 eV for indene and quinodimethane addends and by a less significant amount for PCBM addends. The effect of C70-C60 substitution on the LUMO is of similar magnitude. A more significant change in HOMO-LUMO energy is seen for the aryl addends. On the other hand, all C70 based molecules have strong visible absorption. For most addends, the crystal packing leads to a stabilization of both the LUMO and HOMO by about ~0.2 and ~0.1 eV, respectively, vs. single molecules. When using bis addends, it is also possible to enhance the visible absorption. Electron and hole transport rates are computed to vary vastly depending on the addends chosen; specifically, we compute that indene and quimodimethane addends can enhance charge transport rates while the aryl addend is predicted to result in substantially smaller mobilities of electrons and holes, vs. PC60BM. Furthermore, the -CH2 and bisaddend addition can significantly enhance the charge transfer rates for the PCBM addend. PMID- 29034939 TI - Supramolecular medicine. PMID- 29034940 TI - Near-infrared light and pH-responsive Au@carbon/calcium phosphate nanoparticles for imaging and chemo-photothermal cancer therapy of cancer cells. AB - A simple, mild and reproducible synthetic route was developed to fabricate the multifunctional Au@carbon/calcium phosphate core-shell nanoparticles (Au@C/CaP NPs), which act as an efficient nanoplatform for pH/near-infrared (NIR) dual responsive drug delivery, X-ray computed tomography (CT) imaging and synergistic chemo-photothermal cancer therapy in vitro. PMID- 29034941 TI - Selective photocatalysis of lignin-inspired chemicals by integrating hybrid nanocatalysis in microfluidic reactors. AB - This tutorial review assesses the available and possible strategies for attaining higher selectivity and yield of value-added chemicals from lignin using nanocatalysts embedded in a photomicroreactor. The design of the photomicroreactor, the choice of photocatalysts and the techniques for assembling the catalysts in such confined spaces are crucial elements. Lignin, a predominant industrial byproduct and pollutant, has been recognized today as a rich reservoir for aromatic chemicals and a prominent resource. The conventional batch photocatalytic studies on lignin, often using dissolved lignin under alkaline conditions, often generates a wide range of valuable organic chemicals which find applications in the pharmaceutical, food processing, cosmetic and fine chemical industries. The role of photocatalysis in such lignin depolymerizations is questionable as the dissolution procedure initiates fragmentation of lignin prior to light exposure. The complexity of the lignin structure also impedes necessary and decisive information to understand the reaction mechanism during such reactions in batch photoreactors. Considering these facts, photocatalysis studies on lignin entail a thoughtful reevaluation and focus on understanding the role of photocatalysis in the product generation and authenticating the implicated reaction mechanisms. The development of a photocatalytic system for lignin depolymerization in a continuous microreactor is a superior approach for the generation of valuable products emanating from lignin depolymerization and the successful execution of such strategies can pave the way for the commercialization of bio-based chemicals. PMID- 29034942 TI - Guanidinium-based "molecular glues" for modulation of biomolecular functions. AB - Molecular adhesion based on multivalent interactions plays essential roles in various biological processes. Hence, "molecular glues" that can adhere to biomolecules may modulate biomolecular functions and therefore can be applied to therapeutics. This tutorial review describes design strategies for developing adhesive motifs for biomolecules based on multivalent interactions. We highlight a guanidinium ion-based salt-bridge as a key interaction for adhesion to biomolecules and discuss the application of molecular glues for manipulation of biomolecular assemblies, drug delivery systems, and modulation of biomolecular functions. PMID- 29034943 TI - Catalytic CO2 reduction to valuable chemicals using NiFe-based nanoclusters: a first-principles theoretical evaluation. AB - Converting CO2 into valuable chemicals and fuels is one of the most practical routes for reducing CO2 emissions while fossil fuels continue to dominate the energy sector. Noble-metal-free NiFe bimetal nanoparticles have shown good catalytic activity in CO2 conversion. Herein we theoretically evaluated the catalytic performance and possible mechanisms of NiFe-based nanoclusters for hydrogenating CO2 to form formic acid and CO through bicarbonate by using a periodic and self-consistent density functional theory (DFT) simulation. The theoretical results illustrated that NiFe nanoclusters could have good catalytic activity and selectivity for HCO3- reduction to formic acid and the possible pathway is that HCO3- preferred to react with adsorbed H atoms of H2 on NiFe alloy nanoclusters through the carbon atom site. Moreover, the NiFe alloy nanoclusters with the Fe atom exposed on the surface of the Ni cluster showed better performance with a lower energy barrier compared to that with Fe doped in the corner of the Ni cluster. However, the generation of CO from HCO3- reduction was shown to be neither thermodynamically nor kinetically favorable on NiFe alloy nanoclusters. Additionally, the simulation results also suggested that it was thermodynamically unfavorable for further hydrogenated reduction of formic acid to formaldehyde on NiFe alloy nanoclusters themselves as well as supported on graphene. In summary, a molecular-level insight of CO2 reduction to valuable products on NiFe nanoclusters is offered in this study, which may provide some useful information for guiding the design of NiFe-based catalytic materials for efficient CO2 conversion to useful fuels. PMID- 29034944 TI - Power of protein/tRNA functional assembly against aberrant aggregation. AB - Understanding the mechanisms of protein oligomerization and aggregation is a major concern for biotechnology and medical purposes. However, significant challenges remain in determining the mechanism of formation of these superstructures and the environmental factors that can precisely modulate them. Notably the role that a functional ligand plays in the process of protein aggregation is largely unexplored. We herein address these issues with an original flavin-dependent RNA methyltransferase (TrmFO) used as a protein model since this protein employs a complex set of cofactors and ligands for catalysis. Here, we show that TrmFO carries an unstable protein structure that can partially mis-unfold leading to either formation of irregular and nonfunctional soluble oligomers endowed with hyper-thermal stability or large amorphous aggregates in the presence of salts. Mutagenesis confirmed that this peculiarity is an intrinsic property of a polypeptide and it is independent of the flavin coenzyme. Structural characterization and kinetic studies identified several regions of the protein that enjoy conformational changes and more particularly pinpointed the N terminal subdomain as being a key element in the mechanisms of oligomerization and aggregation. Only stabilization of this region via tRNA suppresses these aberrant protein states. Although protein chaperones emerged as major actors against aggregation, our study emphasizes that other powerful mechanisms exist such as the stabilizing effect of functional assemblies that provide an additional layer of protection against the instability of the proteome. PMID- 29034945 TI - Quantum effect enhanced magnetism of C-doped phosphorene nanoribbons: first principles calculations. AB - Manipulating magnetism of low-dimensional materials is of great importance for their practical applications. Here, using first-principles calculations, we report a systematic investigation of the magnetic properties of C-doped H saturated zigzag phosphorene nanoribbons (H-ZPNRs), which are rather different from those of 2D periodic systems due to the quantum size effect. First of all, we observed a greatly enhanced magnetic moment locating mainly on the C atom and also slightly on its surrounding P atoms. Our results also indicated a strong dependence of the magnetic moment of the C atom on its location, which decays from the edge to the center site of the nanoribbons with an odd-even oscillating behavior originating from Friedel oscillation in low-dimensional materials. As for the C atom on a specific location, its magnetic moment decreases gradually with increasing width of H-ZPNRs, degenerating to the 2D case. What is more, we found that both the magnitude and the oscillating behavior of the magnetic moment on the C atom can be tuned by the edge saturation atoms. In addition, the case of two C atoms co-doping H-ZPNRs was also studied, showing non-magnetic (NM), ferromagnetic (FM) and antiferromagnetic (AFM) states depending on the locations of the two C atoms. Our findings suggest a plausible route for manipulating magnetism of the sp element doped H-ZPNRs, which are expected to have potential applications in spintronics. PMID- 29034946 TI - Spin labelling for integrative structure modelling: a case study of the polypyrimidine-tract binding protein 1 domains in complexes with short RNAs. AB - A combined method, employing NMR and EPR spectroscopies, has demonstrated its strength in solving structures of protein/RNA and other types of biomolecular complexes. This method works particularly well when the large biomolecular complex consists of a limited number of rigid building blocks, such as RNA binding protein domains (RBDs). A variety of spin labels is available for such studies, allowing for conventional as well as spectroscopically orthogonal double electron-electron resonance (DEER) measurements in EPR. In this work, we compare different types of nitroxide-based and Gd(iii)-based spin labels attached to isolated RBDs of the polypyrimidine-tract binding protein 1 (PTBP1) and to short RNA fragments. In particular, we demonstrate experiments on spectroscopically orthogonal labelled RBD/RNA complexes. For all experiments we analyse spin labelling, DEER method performance, resulting distance distributions, and their consistency with the predictions from the spin label rotamers analysis. This work provides a set of intra-domain calibration DEER data, which can serve as a basis to start structure determination of the full length PTBP1 complex with an RNA derived from encephalomycarditis virus (EMCV) internal ribosomal entry site (IRES). For a series of tested labelling sites, we discuss their particular advantages and drawbacks in such a structure determination approach. PMID- 29034947 TI - Revealing the electronic character of the positive electrode/electrolyte interface in lithium-ion batteries. AB - High voltage operating active materials are among the most promising components for positive electrodes of future high energy lithium-ion batteries. However, the operating potential range of such materials often exceeds anodically the thermodynamic stability window of the electrolyte. A surface layer is therefore formed, which is supposed to be one of the reasons for the high irreversible charge loss of these electrodes. The electronic character of such a surface layer formed at the electrode/electrolyte interface of LiNi0.5Mn1.5O4 (LNM), stoichiometric (x = 0) and overlithiated (x = 0.1) Li1+x(Ni1/3Mn1/3Co1/3)1-xO2 (NMC) based paste electrodes was investigated in situ using feedback-mode scanning electrochemical microscopy (SECM). The role in the formation of an electronically insulating layer of a conductive carbon additive-based electrode and of the Al current collector was explored as well. The surface layers formed on all oxide based paste electrodes and on conductive carbon additive based electrodes showed unexpectedly an electronic conducting behavior, while the Al current collector formed an electronically insulating layer which was found to be influenced by the electrolyte. PMID- 29034948 TI - Bandgap engineering by cationic disorder: case study on AgBiS2. AB - The influence of cationic disorder on the electronic structure of ternary compounds, here exemplified on AgBiS2 material, is studied by means of accurate first principles periodic density functional theory based calculations. For AgBiS2 cationic disorder in going from semiconducting matildite to a metallic arrangement crystal structure is found to induce a significant decrease in the band gap, as a result of cation-disorder conduction band tail states penetrating into the matildite bandgap. Properly aligned conduction band minimum and valence band maximum show that cationic disorders lead to a noticeable drop of the former and a slight increase of the latter. The present results indicate that temperature effects triggering cationic disorder will have a beneficial effect on the photoactivity of AgBiS2 samples provided that the metallic limit is not reached. PMID- 29034949 TI - A multidonor-photosensitizer-multiacceptor triad for long-lived directional charge separation. AB - The modular assembly of a directional photoredox-active multidonor photosensitizer-multiacceptor (Dn-P-Am) architecture is presented. The triad assembly features a central Ru(ii) sensitizer equipped with pendant polymer chains consisting of multiple triarylamine (pTARA) and naphthalene diimide (pNDI) units, respectively. Upon excitation, the efficient formation (>96%) of charge separation (CS) was observed featuring similar CS lifetimes (400 ns) as related molecular triads. In contrast, a significant additional longer-lived CS component (2400 ns, 30%) is observed indicating multiple contributing pathways. PMID- 29034950 TI - Spectroscopic characteristics of Rubricoccus marinus xenorhodopsin (RmXeR) and a putative model for its inward H+ transport mechanism. AB - A new group of microbial rhodopsins named xenorhodopsins (XeR), which are closely related to the cyanobacterial Anabaena sensory rhodopsin, show a light-driven "inward" proton transport activity, as reported for one representative of this group from Parvularcula oceani (PoXeR). In this study, we functionally and spectroscopically characterized a new member of the XeR clade from a marine bacterium Rubricoccus marinus SG-29T (RmXeR). Escherichia coli cells expressing recombinant RmXeR showed a light-induced alkalization of the cell suspension, which was strongly impaired by a protonophore, suggesting that RmXeR is a light driven "inward" proton pump as is PoXeR. The spectroscopic properties of purified RmXeR were investigated and compared with those of PoXeR and a light-driven "outward" proton pump, bacteriorhodopsin (BR) from the archaeon Halobacterium salinarum. Action spectroscopy revealed that RmXeR with all-trans retinal is responsible for the light-driven inward proton transport activity, but not with 13-cis retinal. From pH titration experiments and mutational analysis, we estimated the pKa values for the protonated Schiff base of the retinal chromophore and its counterion as 11.1 +/- 0.07 and 2.1 +/- 0.07, respectively. Of note, the direction of both the retinal composition change upon light-dark adaptation and the acid-induced spectral shift was opposite that of BR, which is presumably related to the opposite directions of ion transport (from outside to inside for RmXeR and from inside to outside for BR). Flash photolysis experiments revealed the appearances of three intermediates (L, M and O) during the photocycle. The proton uptake and release were coincident with the formation and decay of the M intermediate, respectively. Together with associated findings from other microbial rhodopsins, we propose a putative model for the inward proton transport mechanism of RmXeR. PMID- 29034952 TI - Viscum articulatum Burm. f.: a review on its phytochemistry, pharmacology and traditional uses. AB - OBJECTIVES: The aim of this study was to review and highlight traditional and ethnobotanical uses, phytochemical constituents, IP status, biological activity and pharmacological activity of Viscum articulatum. METHODS: Thorough literature searches were performed on Viscum articulatum, and data were analysed for reported traditional uses, pharmacological activity, phytochemicals present and patents filed. Scientific and patent databases such as PubMed, Science Direct, Google Scholar, Google patents, USPTO and Espacenet were searched using different keywords. KEY FINDINGS: Viscum articulatum has been traditionally used in different parts of the world for treatment of various ailments. Almost all the parts such as leaves, root, stem and bark are having medicinal values and are reported for their uses in Ayurvedic and Chinese system of medicine for the management of various diseases. Modern scientific studies demonstrate efficacy of this plant against hypertension, ulcer, epilepsy, inflammation, wound, nephrotoxicity, HIV, cancer, etc. Major bioactive phytochemicals include oleanolic acid, betulinic acid, eriodictyol, naringenin, beta-amyrin acetate, visartisides, etc. CONCLUSIONS: Side effects of allopathic medicines have created a global opportunity, acceptance and demand for phytomedicines. Viscum articulatum could be an excellent source of effective and safe phytomedicine for various ailments if focused translational efforts are undertaken by integrating the existing outcomes of researches. PMID- 29034951 TI - A nanocrystal-based formulation improves the pharmacokinetic performance and therapeutic response of albendazole in dogs. AB - OBJECTIVES: Here, we aimed to assess the pharmacokinetic performance and therapeutic response (anthelmintic efficacy) of an albendazole (ABZ) nano-sized formulation in dogs. METHODS: In the pharmacokinetic study, ABZ self-dispersible nanocrystals (SDNCS) and a control formulation were administered orally to healthy dogs (n = 6). The concentrations of the sulphoxide metabolite in plasma were determined by high-performance liquid chromatography. For the anthelmintic efficacy trial, SDNCS and a commercially available formulation of ABZ were given to naturally parasitised dogs. The number of Ancylostoma caninum eggs in the faeces was determined using the McMaster technique. KEY FINDINGS: The area under the curve, Tmax and Cmax for the SDNCS were improved compared to the control. The efficacy study showed no statistical differences between the SDNCS and the commercial formulation at the doses of 25 and 12.5 mg/kg. However, significant differences (P < 0.05) between the treatments were found at 6.25 mg/kg (a quarter of the reference dose) with a reduction in the faecal nematode egg counts of 62.0 +/- 21.1% and 100 +/- 0% for the control and SDNCS, respectively. CONCLUSIONS: The improved pharmacokinetic performance observed for the novel formulation of ABZ correlated with an improved in vivo therapeutic response against a model intestinal nematode parasite in dogs. PMID- 29034953 TI - Reproductive autonomy of women and girls under the Convention on the Rights of Persons with Disabilities. AB - Women and girls with disabilities have historically been denied the freedom to make their own choices in matters relating to their reproduction. In the healthcare sector they experience multiple discriminatory practices. Women and girls with intellectual disabilities are particularly vulnerable to coerced or forced medical interventions. The present article considers the contribution the Convention on the Rights of Persons with Disabilities makes towards affirming the rights of women and girls with disabilities to enjoy reproductive autonomy, including autonomy related to reproductive health, on an equal basis with individuals without disabilities. The Convention is paradigm-setting in its maximal approach to affirming the rights of individuals with disabilities to make autonomous choices under conditions of equality and non-discrimination. The Convention is the first human rights treaty to clearly affirm that impairment of decision-making skills is not a justification for depriving a person with cognitive or intellectual disability of legal capacity. PMID- 29034955 TI - A review of issues of nomenclature and taxonomy of Hypericum perforatum L. and Kew's Medicinal Plant Names Services. AB - OBJECTIVES: To review which names are used to refer to Hypericum perforatum L. in health regulation and medicinal plant references, and the potential for ambiguity or imprecision. KEY FINDINGS: Structured searches of Kew's Medicinal Plant Names Services Resource, supplemented with other online bibliographic resources, found that the scientific name Hypericum perforatum L. is used consistently in the literature, but variation between subspecies is rarely considered by researchers. Research is still published using only the common name 'St John's wort' despite it being imprecise; at least 80 other common names are also used for this plant in multiple languages. SUMMARY: Ambiguous and alternative plant names can lead to ineffective regulation, misinterpretation of literature, substitution of raw material or the failure to locate all published research. Kew's Medicinal Plant Names Services (MPNS) maps all names used for each plant in medicinal plant references onto current taxonomy, thereby providing for disambiguation and comprehensive access to the regulations and references that cite that plant, regardless of the name used. MPNS also supplies the controlled vocabulary for plant names now required for compliance with a new standard (Identification of Medicinal Products, IDMP) adopted by medicines regulators worldwide. PMID- 29034954 TI - Intergenerational environmental effects: functional signals in offspring transcriptomes and metabolomes after parental jasmonic acid treatment in apomictic dandelion. AB - Parental environments can influence offspring traits. However, the magnitude of the impact of parental environments on offspring molecular phenotypes is poorly understood. Here, we test the direct effects and intergenerational effects of jasmonic acid (JA) treatment, which is involved in herbivory-induced defense signaling, on transcriptomes and metabolomes in apomictic common dandelion (Taraxacum officinale). In a full factorial crossed design with parental and offspring JA and control treatments, we performed leaf RNA-seq gene expression analysis, LC-MS metabolomics and total phenolics assays in offspring plants. Expression analysis, leveraged by a de novo assembled transcriptome, revealed an induced response to JA exposure that is consistent with known JA effects. The intergenerational effect of treatment was considerable: 307 of 858 detected JA responsive transcripts were affected by parental JA treatment. In terms of the numbers of metabolites affected, the magnitude of the chemical response to parental JA exposure was c. 10% of the direct JA treatment response. Transcriptome and metabolome analyses both identified the phosphatidylinositol signaling pathway as a target of intergenerational JA effects. Our results highlight that parental environments can have substantial effects in offspring generations. Transcriptome and metabolome assays provide a basis for zooming in on the potential mechanisms of inherited JA effects. PMID- 29034956 TI - Homoeologous exchanges cause extensive dosage-dependent gene expression changes in an allopolyploid crop. AB - Structural variation is a major source of genetic diversity and an important substrate for selection. In allopolyploids, homoeologous exchanges (i.e. between the constituent subgenomes) are a very frequent type of structural variant. However, their direct impact on gene content and gene expression had not been determined. Here, we used a tissue-specific mRNA-Seq dataset to measure the consequences of homoeologous exchanges (HE) on gene expression in Brassica napus, a representative allotetraploid crop. We demonstrate that expression changes are proportional to the change in gene copy number triggered by the HEs. Thus, when homoeologous gene pairs have unbalanced transcriptional contributions before the HE, duplication of one copy does not accurately compensate for loss of the other and combined homoeologue expression also changes. These effects are, however, mitigated over time. This study sheds light on the origins, timing and functional consequences of homeologous exchanges in allopolyploids. It demonstrates that the interplay between new structural variation and the resulting impacts on gene expression, influences allopolyploid genome evolution. PMID- 29034957 TI - A root-knot nematode small glycine and cysteine-rich secreted effector, MiSGCR1, is involved in plant parasitism. AB - Root-knot nematodes, Meloidogyne spp., are obligate endoparasites that maintain a biotrophic relationship with their hosts. They infect roots as microscopic vermiform second-stage juveniles, and establish specialized feeding structures called 'giant-cells', from which they withdraw water and nutrients. The nematode effector proteins secreted in planta are key elements in the molecular dialogue of parasitism. Here, we compared Illumina RNA-seq transcriptomes for M. incognita obtained at various points in the lifecycle, and identified 31 genes more strongly expressed in parasitic stages than in preparasitic juveniles. We then selected candidate effectors for functional characterization. Quantitative real time PCR and in situ hybridizations showed that the validated differentially expressed genes are predominantly specifically expressed in oesophageal glands of the nematode. We also soaked the nematodes in siRNA to silence these genes and to determine their role in pathogenicity. The silencing of the dorsal gland specific Minc18876 and its paralogues resulted in a significant, reproducible decrease in the number of mature females with egg masses, demonstrating a potentially important role for the small glycine- and cysteine-rich effector MiSGCR1 in early stages of plant-nematode interaction. Finally, we report that MiSGCR1 suppresses plant cell death induced by bacterial or oomycete triggers of plant defense. PMID- 29034958 TI - Energy: A concept analysis from a nursing perspective. AB - The term "energy" is common in day-to-day language and denotes a myriad of different meanings depending on context. Energy is one of the most significant concepts for nearly all of the sciences including nursing, and yet it continues to be ambiguously defined. This article utilizes a modified version of Walker and Avant's framework for concept analysis (2011) to identify the characteristics, attributes, and antecedents of the concept of energy and provides a practical and theoretical application to nursing. The defining attributes discussed are power, productivity, effort, and activity. Model and contrary cases are presented to better provide a representation of the concept of energy. Empirical referents or a proper measurement or assessment of energy are nonspecific and poorly defined. Opportunities for future research related to the concept of energy in nursing include implementation of new terminology or theory development. PMID- 29034960 TI - Celebrating Baer - a Nordic scientist who discovered the mammalian oocyte. PMID- 29034959 TI - Quantitative proteomics of a B12 -dependent alga grown in coculture with bacteria reveals metabolic tradeoffs required for mutualism. AB - The unicellular green alga Lobomonas rostrata requires an external supply of vitamin B12 (cobalamin) for growth, which it can obtain in stable laboratory cultures from the soil bacterium Mesorhizobium loti in exchange for photosynthate. We investigated changes in protein expression in the alga that allow it to engage in this mutualism. We used quantitative isobaric tagging (iTRAQ) proteomics to determine the L. rostrata proteome grown axenically with B12 supplementation or in coculture with M. loti. Data are available via ProteomeXchange (PXD005046). Using the related Chlamydomonas reinhardtii as a reference genome, 588 algal proteins could be identified. Enzymes of amino acid biosynthesis were higher in coculture than in axenic culture, and this was reflected in increased amounts of total cellular protein and several free amino acids. A number of heat shock proteins were also elevated. Conversely, photosynthetic proteins and those of chloroplast protein synthesis were significantly lower in L. rostrata cells in coculture. These observations were confirmed by measurement of electron transfer rates in cells grown under the two conditions. The results indicate that, despite the stability of the mutualism, L. rostrata experiences stress in coculture with M. loti, and must adjust its metabolism accordingly. PMID- 29034961 TI - A randomized trial of automated intermittent ropivacaine administration vs. continuous infusion in an interscalene catheter. AB - BACKGROUND: Ultrasound-guided interscalene nerve block with ropivacaine as local anesthetic agent given as boluses or continuous infusion is the preferred pain management after major shoulder surgery. The use of automated intermittent boluses has been shown to be superior to continuous infusion in sciatic and epidural nerve block. HYPOTHESIS: Automated intermittent boluses reduce pain after major shoulder surgery. METHODS: Seventy patients aged 18-75 years, scheduled for major shoulder surgery under general anesthesia with interscalene nerve block were included in this randomized controlled trial. Patients were allocated to either automated intermittent boluses with 16 mg ropivacaine every 2 h combined with patient-controlled administration or to a conventional regimen of continuous infusion of 8 mg/h (4 ml/h) of ropivacaine combined with patient controlled administration (2 ml, lockout time 30 min). Pain (Visual Analog Scale, VAS) was assessed every 8 h postoperatively. RESULTS: Fifty-seven patients completed the study, 29 in the continuous infusion group and 28 in the automated intermittent bolus group. Shoulder arthroplasty was performed in 49 (86%) of the cases. There were no significant differences in VAS score from 8 to 48 h post operatively. No significant difference in opioid usage was observed. The automated intermittent bolus group reported significantly less force on coughing and more hoarseness. A significantly lower volume of ropivacaine was used in the automated intermittent bolus group. CONCLUSION: Automated intermittent boluses did not reduce pain or rescue opioid consumption compared with continuous infusion of ropivacaine. The automated intermittent bolus group had significantly less force on coughing and more hoarseness. PMID- 29034962 TI - Analysis and evaluation of the moral distress theory. AB - Moral distress is a pervasive problem in nursing resulting in a detriment to patient care, providers, and organizations. Over a decade ago, the moral distress theory (MDT) was proposed and utilized in multiple research studies. This middle range theory explains and predicts the distress that occurs in a nurse because of moral conflict. The research findings born from this theory have been substantial. Since inception of this theory, moral distress has been extensively examined which has further elaborated its understanding. This paper provides an analysis and evaluation of the MDT according to applicable guidelines. Current understanding of the phenomenon indicates that a new theory may be warranted to better predict, treat, and manage moral distress. PMID- 29034963 TI - Does the Effect of Justice System Attitudes on Adolescent Crime Vary Based on Psychosocial Maturity? AB - Adolescents who view the justice system negatively are prone to commit crime. Simultaneously, youth who have difficulty regulating their behavior are likely to commit crime. Using a longitudinal sample of 1,216 male adolescents (ages 13-17) who had been arrested for the first time, were racially/ethnically diverse, and were drawn from three U.S. states, this study incorporated a developmental perspective into the procedural justice framework to examine whether psychosocial immaturity moderated the effect of justice system attitudes on youth crime. Attitudes toward the justice system were associated with reoffending among psychosocially mature youth, but not among psychosocially immature youth. This developmental perspective indicates that psychosocially immature youth who have difficulty regulating their behavior may be at risk of engaging in crime regardless of how they perceive the justice system. PMID- 29034964 TI - Hemispheric asymmetry of the frontolimbic cortex in young adults with borderline personality disorder. AB - OBJECTIVE: Although the frontolimbic cortex has been implicated in borderline personality disorder (BPD), information about possible asymmetries in this region in patients with BPD is limited. This study aimed to examine whether frontolimbic cortex asymmetries differ between patients with BPD and healthy individuals. METHODS: The brains of 30 young adult patients with BPD and 32 healthy control subjects were scanned with magnetic resonance imaging (MRI). The participants completed self-report scales assessing impulsivity, affect intensity and other psychological variables. Gray matter volume, surface area, and cortical thickness in regions of interest (ROIs), namely anterior insula (AI) and anterior cingulate cortex (ACC) were determined and the data were probed for hemisphere-group interactions. RESULTS: Relative to controls, patients with BPD had reduced cortical thickness in left ACC and less surface area and gray matter volume in left AI. Significant group-hemisphere interactions were observed for gray matter volume and surface area of AI and for cortical thickness of ACC. Post hoc analysis showed that the BPD patients had greater frontolimbic cortex asymmetry than healthy controls; furthermore, greater asymmetry of AI&ACC correlated with a higher score in attention subscale of Barratt Impulsiveness Scale. CONCLUSION: Patients with BPD have greater frontolimbic asymmetry than healthy individuals. PMID- 29034965 TI - Role of serum albumin as a nanoparticulate carrier for nose-to-brain delivery of R-flurbiprofen: implications for the treatment of Alzheimer's disease. AB - OBJECTIVES: R-flurbiprofen (R-FP) was found to offer neuroprotective effects by inhibiting mitochondrial calcium overload induced by beta-amyloid peptide toxicity in Alzheimer's disease (AD). However, poor brain penetration after oral administration posed a challenge to its further development for AD treatment. In this study, we investigated the potential of serum albumin as nanoparticulate carriers for nose-to-brain delivery of R-FP to improve its brain accumulation. METHODS: Mice were subjected to three treatment groups: (1) intranasal R-FP solution, (2) oral R-FP solution and (3) intranasal R-FP albumin nanoparticles. We also investigated whether the in-vivo R-FP level achieved in the brain afforded by intranasal administration of R-FP nanoparticles had any effect on mitochondrial respiratory activity in an in-vitro AD model. KEY FINDINGS: Our in vivo experiments demonstrate that the intranasal administration of serum albumin based R-FP nanoparticles achieved higher brain-to-plasma ratio profile as compared to intranasal and oral administration of a simple R-FP solution. We observed significantly improved basal and maximal mitochondrial respiration in cells treated with R-FP albumin nanoparticles at in-vivo brain concentration. CONCLUSIONS: Serum albumin-based nanoparticles administered via the nasal route may be a viable approach in delivering therapeutic agents to the brain to alleviate mitochondrial dysfunction in AD. PMID- 29034967 TI - Evaluation of a method for isocapnic hyperventilation: a clinical pilot trial. AB - BACKGROUND: Isocapnic hyperventilation (IHV) is a method that shortens time to extubation after inhalation anaesthesia using hyperventilation (HV) without lowering airway CO2 . In a clinical trial on patients undergoing long-duration sevoflurane anaesthesia for major ear-nose-throat (ENT) surgery, we evaluated the utility of a technique for CO2 delivery (DCO2 ) to the inspiratory limb of a closed breathing circuit, during HV, to achieve isocapnia. METHODS: Fifteen adult ASA 1-3 patients were included. After end of surgery, mechanical HV was started by doubling baseline minute ventilation. Simultaneously, CO2 was delivered and dosed using a nomogram developed in a previous experimental study. Time to extubation and eye opening was recorded. Inspired (FICO2 ) and expired (FETCO2 ) CO2 and arterial CO2 levels were monitored during IHV. Cognition was tested pre operatively and at 20, 40 and 60 min after surgery. RESULTS: A DCO2 of 285 +/- 45 ml/min provided stable isocapnia during HV (13.5 +/- 4.1 l/min). The corresponding FICO2 level was 3.0 +/- 0.3%. Time from turning off the vaporizer (1.3 +/- 0.1 MACage) to extubation (0.2 +/- 0.1 MACage) was 11.3 +/- 1.8 min after 342 +/- 131 min of anaesthesia. PaCO2 and FETCO2 remained at normal levels during and after IHV. In 85% of the patients, post-operative cognition returned to pre-operative values within 60 min. CONCLUSIONS: In this cohort of patients, a DCO2 nomogram for IHV was validated. The patients were safely extubated shortly after discontinuing long-term sevoflurane anaesthesia. Perioperatively, there were no adverse effects on arterial blood gases or post-operative cognition. This technique for IHV can potentially be used to decrease emergence time from inhalation anaesthesia. PMID- 29034966 TI - Influence of sulfate supply on selenium uptake dynamics and expression of sulfate/selenate transporters in selenium hyperaccumulator and nonhyperaccumulator Brassicaceae. AB - Stanleya pinnata not only hyperaccumulates selenium (Se) to 0.5% of its dry weight, but also exhibits higher tissue Se-to-sulfur (S) ratios than other species and its surroundings. To investigate the mechanisms underlying this Se enrichment, we compared S. pinnata with the nonhyperaccumulators S. elata and Brassica juncea for selenate uptake in long- (9 d) and short-term (1 h) assays, using different concentrations of selenate and competitor sulfate. Different sulfate pre-treatments (0, 0.5, 5 mM, 3 d) were also tested for effects on selenate uptake and sulfate transporters' expression. Relative to nonhyperaccumulators, S. pinnata showed higher rates of root and shoot Se accumulation and less competitive inhibition by sulfate or by high-S pretreatment. The selenate uptake rate for S. pinnata (1 h) was three- to four fold higher than for nonhyperaccumulators, and not significantly affected by 100 fold excess sulfate, which reduced selenate uptake by 100% in S. elata and 40% in B. juncea. Real-time reverse transcription PCR indicated constitutive upregulation in S. pinnata of sulfate transporters SULTR1;2 (root influx) and SULTR2;1 (translocation), but reduced SULTR1;1 expression (root influx). In S. pinnata, selenate uptake and translocation rates are constitutively elevated and relatively sulfate-independent. Underlying mechanisms likely include overexpression of SULTR1;2 and SULTR2;1, which may additionally have evolved enhanced specificity for selenate over sulfate. PMID- 29034968 TI - Genetics and evolution of MIXTA genes regulating cotton lint fiber development. AB - Cotton, with cellulose-enriched mature fibers, is the largest source of natural textiles. Through a map-based cloning strategy, we isolated an industrially important lint fiber development gene (Li3 ) that encodes an MYB-MIXTA-like transcription factor (MML) on chromosome D12 (GhMML4_D12). Virus-induced gene silencing or decreasing the expression of the GhMML4_D12 gene in n2 NSM plants resulted in a significant reduction in epidermal cell prominence and lint fiber production. GhMML4_D12 is arranged in tandem with GhMML3, another MIXTA gene responsible for fuzz fiber development. These two very closely related MIXTA genes direct fiber initiation production in two specialized cell forms: lint and fuzz fibers. They may control the same metabolic pathways in different cell types. The MIXTAs expanded in Malvaceae during their evolution and produced a Malvaceae-specific family that regulates epidermal cell differentiation, different from the gene family that regulates leaf hair trichome development. Cotton has developed a unique transcriptional regulatory network for fiber development. Characterization of target genes regulating fiber production has provided insights into the molecular mechanisms underlying cotton fiber development and has allowed the use of genetic engineering to increase lint yield by inducing more epidermal cells to develop into lint rather than fuzz fibers. PMID- 29034969 TI - Experience with MAD on children with epilepsy in Egypt after classic KD failure. AB - BACKGROUND AND AIM: Modified Atkins diet (MAD) is a less restrictive type of ketogenic diet (KD) as compared to the classic one. The aim of this study was to evaluate the impact of 9 months MAD treatment on the growth and seizure control in patients with intractable epilepsy as well as the quality of life (QoL) of their mothers. SUBJECTS AND METHODS: The study included 15 patients with intractable epilepsy who could not tolerate their classic KD management plan. From the 15 recruited cases, only seven patients completed this nine months prospective study. After neurological reassessment, the patients were prescribed MAD tailored from the local Egyptian ingredients. Arabic translation of the WHO Quality of life Instruments (WHOQOL-BREF) scale was calculated for the mothers initially and 9 months later. Daily seizure frequency with severity assessment by Chalfont scale was recorded as well as monthly weight and length throughout the study period. RESULTS: Mothers 'QoL in all WHOQOL-BREF domains significantly improved (P < .001) after nine months follow-up coupled by significant decrease in Chalfont scores from 51.00 +/- 15.45 to 20.57 +/- 21.45 and daily seizure frequency from 13.29 +/- 6.99 to 2.71 +/- 3.68. Regarding anthropometric data, there was significant increase in patients' weight and length as well as in the z score for weight and length. CONCLUSION: After nine months of MAD, growth and seizure parameters significantly improved in the intractable epilepsy patients as well as their mothers& QoL. We thus recommend MAD as a more flexible alternative in intractable epilepsy patients who can not tolerate classic KD. PMID- 29034970 TI - Oral health of older residents in care and community dwellers: nursing implications. AB - BACKGROUND: Poor oral health is associated with a reduced quality of life and serious illnesses. Consequently, nurses need to be more aware of oral health to improve the general health of residents in care. AIM: To evaluate and compare oral health behaviours and levels of salivary haemoglobin and dental biofilm acidogenicity, which can be used to evaluate oral disease activity, between residents and community dwellers in South Korea. METHODS: This cross-sectional study included 133 participants: 64 residents and 69 community dwellers. All participants completed a questionnaire and tests to measure their salivary haemoglobin and dental biofilm acidogenicity. RESULTS: A higher percentage of community dwellers than of residents brushed their teeth three times a day, cleaned their tongue, used interdental cleaning devices and had visited a dental clinic within 1 year. The levels of salivary haemoglobin and dental biofilm acidogenicity tended to be higher in residents than in community dwellers. CONCLUSION: Residents showed poorer oral health behaviours and higher levels of gingival bleeding and acid production by oral bacteria than did community dwellers. IMPLICATIONS FOR NURSING PRACTICE: Nursing staff should enhance their monitoring of oral hygiene status and provide quality oral care to residents through cooperation with dental professionals. IMPLICATIONS FOR NURSING AND HEALTH POLICY: Policymakers should be aware that oral health is an essential component of improving general health and well-being and therefore strive to develop policies to promote oral care services provided to residents. Nursing policies, such as mandating oral care and hands-on training in oral care for nursing staff, are important. We also suggest that factors related to oral care be added to the establishment or accreditation standards of care facilities. PMID- 29034971 TI - Belinda E. Medlyn. PMID- 29034972 TI - Corrigendum. PMID- 29034973 TI - Biocrust ecology: unifying micro- and macro-scales to confront global change. PMID- 29034974 TI - Conifer tree-ring density inter-annual variability - anatomical, physiological and environmental determinants. PMID- 29034976 TI - Corrigendum. PMID- 29034975 TI - New insights into plant-microbe interactions through advances in fungal genetics. PMID- 29034977 TI - Antisense movement on the clock. PMID- 29034978 TI - Arbuscular mycorrhizal fungi promote coexistence and niche divergence of sympatric palm species on a remote oceanic island. AB - Microbes can have profound effects on their hosts, driving natural selection, promoting speciation and determining species distributions. However, soil dwelling microbes are rarely investigated as drivers of evolutionary change in plants. We used metabarcoding and experimental manipulation of soil microbiomes to investigate the impact of soil and root microbes in a well-known case of sympatric speciation, the Howea palms of Lord Howe Island (Australia). Whereas H. forsteriana can grow on both calcareous and volcanic soils, H. belmoreana is restricted to, but more successful on, volcanic soil, indicating a trade-off in adaptation to the two soil types. We suggest a novel explanation for this trade off. Arbuscular mycorrhizal fungi (AMF) are significantly depleted in H. forsteriana on volcanic soil, relative to both H. belmoreana on volcanic soil and H. forsteriana on calcareous soil. This is mirrored by the results of survival experiments, where the sterilization of natural soil reduces Howea fitness in every soil-species combination except H. forsteriana on volcanic soil. Furthermore, AMF-associated genes exhibit evidence of divergent selection between Howea species. These results show a mechanism by which divergent adaptation can have knock-on effects on host-microbe interactions, thereby reducing interspecific competition and promoting the coexistence of plant sister species. PMID- 29034980 TI - Geometric Design of Scalable Forward Scatterers for Optimally Efficient Solar Transformers. AB - It will be ideal to deliver equal, optimally efficient "doses" of sunlight to all cells in a photobioreactor system, while simultaneously utilizing the entire solar resource. Backed by the numerical scattering simulation and optimization, here, the design, synthesis, and characterization of the synthetic iridocytes that recapitulated the salient forward-scattering behavior of the Tridacnid clam system are reported, which presents the first geometric solution to allow narrow, precise forward redistribution of flux, utilizing the solar resource at the maximum quantum efficiency possible in living cells. The synthetic iridocytes are composed of silica nanoparticles in microspheres embedded in gelatin, both are low refractive index materials and inexpensive. They show wavelength selectivity, have little loss (the back-scattering intensity is reduced to less than ~0.01% of the forward-scattered intensity), and narrow forward scattering cone similar to giant clams. Moreover, by comparing experiments and theoretical calculation, it is confirmed that the nonuniformity of the scatter sizes is a "feature not a bug" of the design, allowing for efficient, forward redistribution of solar flux in a micrometer-scaled paradigm. This method is environmentally benign, inexpensive, and scalable to produce optical components that will find uses in efficiency limited solar conversion technologies, heat sinks, and biofuel production. PMID- 29034979 TI - The role of intragroup agonism in parent-offspring relationships and natal dispersal in monogamous owl monkeys (Aotus azarae) of Argentina. AB - Agonistic behaviors are common in many group-living taxa and may serve a variety of functions, ranging from regulating conflicts over reproduction to defending food resources. However, high rates of agonism are not expected to occur among close relatives or individuals in established mating relationships, which are characteristics of monogamous groups. To contribute to our understanding of agonism within socially monogamous groups, we collected behavioral and demographic data from Azara's owl monkeys (Aotus azarae) in the Gran Chaco of Argentina over 14 years. We examined factors related to age, sex, kinship, and behavioral context to evaluate predictions of the hypotheses that agonism functions to regulate dispersal and that it mediates competition for food and/or mates. Intragroup agonism was relatively rare: the group rate was approximately one event every three and a half hours. Rates of agonism were generally similar for both sexes, but there were marked differences among age categories. Agonism performed by adults was more frequently directed at subadults than at younger offspring. In contrast, agonistic interactions involving infants were very rare. Among interactions between adults and subadults, adults were much more frequently the actors than the recipients, suggesting that agonism from adults may influence natal dispersal of subadults. Agonistic events were most frequent during foraging, but also occurred more frequently than expected during bouts of social behavior. Overall, our results suggest that agonism in owl monkeys serves as a mechanism for regulating dispersal, and also likely plays a role in mediating mating and feeding competition. PMID- 29034981 TI - Review article: the gut microbiome in inflammatory bowel disease-avenues for microbial management. AB - BACKGROUND: The concept of an altered collective gut microbiota rather than identification of a single culprit is possibly the most significant development in inflammatory bowel disease research. We have entered the "omics" era, which now allows us to undertake large-scale/high-throughput microbiota analysis which may well define how we approach diagnosis and treatment of inflammatory bowel disease (IBD) in the future, with a strong steer towards personalised therapeutics. AIM: To assess current epidemiological, experimental and clinical evidence of the current status of knowledge relating to the gut microbiome, and its role in IBD, with emphasis on reviewing the evidence relating to microbial therapeutics and future microbiome modulating therapeutics. METHODS: A Medline search including items 'intestinal microbiota/microbiome', 'inflammatory bowel disease', 'ulcerative colitis', 'Crohn's disease', 'faecal microbial transplantation', 'dietary manipulation' was performed. RESULTS: Disease remission and relapse are associated with microbial changes in both mucosal and luminal samples. In particular, a loss of species richness in Crohn's disease has been widely observed. Existing therapeutic approaches broadly fall into 3 categories, namely: accession, reduction or indirect modulation of the microbiome. In terms of microbial therapeutics, faecal microbial transplantation appears to hold the most promise; however, differences in study design/methodology mean it is currently challenging to elegantly translate results into clinical practice. CONCLUSIONS: Existing approaches to modulate the gut microbiome are relatively unrefined. Looking forward, the future of microbiome-modulating therapeutics looks bright with several novel strategies/technologies on the horizon. Taken collectively, it is clear that ignoring the microbiome in IBD is not an option. PMID- 29034982 TI - Bonding Scheme and Optical Properties in BiM2 O2 (PO4 ) (M=Cd, Mg, Zn); Experimental and Theoretical Analysis. AB - Luminescence properties of the Bi(M,M')2 PO6 (M=Mg, Zn, Cd) series have been rationalized as a function of the M element using optical spectroscopy, as well as empirical and first principles calculations. The latter yielded indirect band gaps for all compounds with energies between 2.64 and 3.62 eV, whereas luminescence measurements exhibit bright warm white emission luminescence even at room temperature assigned to Bi3+ transitions with, for example, 22.8 % quantum yield for M=Mg. The energies of the excitation maxima are shifted with the covalent character of the Bi-O bond by inductive effects of the neighboring M-O bonds. This is discussed on the basis of empirical and electronic structure calculations. Strikingly, in all the investigated compounds, an excitation process occurring at energies higher than the band gaps is observed, which seems to be intrinsic to the s2 ->sp electronic transitions of the Bi3+ ions. Concerning the emission process, a direct correlation between the lone pair (LP) activity and the emission energy upon change of the lattice parameters was established governing the LP stereo-activity in the BiMg2-x Cdx PO6 system. As a result, the possibility for tunable optical properties appears realistic in the Bi2 O3 -MO-X2 O5 (X=P, V, As, etc.) systems taking into account the diversity of reported or novel crystal structures that can be designed using well-established rules of crystal chemistry. PMID- 29034983 TI - Pleth variability index can predict spinal anaesthesia-induced hypotension in patients undergoing caesarean delivery. AB - BACKGROUND: Spinal anaesthesia carries a risk of hypotension. We hypothesized that pleth variability index and perfusion index would assess maternal volume status, and thus, allow identification of patients at higher risk of developing hypotension after spinal anaesthesia for caesarean delivery. METHODS: Fifty patients undergoing elective caesarean delivery were enrolled. All patients received spinal anaesthesia with 0.5% hyperbaric bupivacaine (10 mg) and fentanyl (10 mcg). Blood pressure was measured every minute. Pleth variability index and perfusion index were automatically measured throughout the procedure using pulse oximetry on the index finger. In case of hypotension (systolic blood pressure below 90 mmHg or 80% of the baseline value), ephedrine 5 mg was administered. Receiver-operating characteristic and multivariate logistic regression analyses for spinal anaesthesia-induced hypotension were performed. RESULTS: Hypotension occurred in 32 patients (64%). The areas under the receiver-operating characteristic curve were 0.751 (95% confidence interval: 0.597-0.904) for pleth variability index before anaesthesia, 0.793 (95% confidence interval: 0.655 0.930) for pleth variability index after anaesthesia and 0.731 (95% confidence interval: 0.570-0.892) for perfusion index change (percent change in perfusion index induced by spinal anaesthesia). The optimal threshold value of pleth variability index (after anaesthesia) for predicting hypotension was 18% (sensitivity: 78.1%, specificity: 83.3%). Pleth variability index after spinal anaesthesia was an independent factor for hypotension (odds ratio: 1.21, P = 0.041). CONCLUSIONS: Pleth variability index after spinal anaesthesia was a good predictor of spinal anaesthesia-induced hypotension in patients undergoing caesarean delivery. In addition, perfusion index change after spinal anaesthesia has the potential to predict hypotension. PMID- 29034984 TI - Sensory quality and fatty acid content of springbok (Antidorcas marsupialis) meat: influence of farm location and sex. AB - BACKGROUND: Springbok are harvested for meat production irrespective of farm location or sex from which the meat is derived. The present study investigated the influence of farm location (three farms containing different vegetation types) and sex on the sensory quality of springbok longissimus thoracis et lumborum muscle. The sensory profile (aroma, flavour and texture) was determined by descriptive sensory analysis, in addition to determination of the physical meat quality, proximate and fatty acid composition. RESULTS: Farm location had a significant influence on the sensory quality (gamey and liver-like aroma; beef, liver-like, lamb-like and herbaceous flavour; sweet taste; tenderness; residue; mealiness; Warner-Bratzler shear force; moisture, protein and intramuscular lipid content) and fatty acid content (oleic acid; alpha-linolenic acid; total saturated and monounsaturated fatty acids; polyunsaturated to saturated fatty acid ratio; total omega-3 polyunsaturated fatty acid; and omega-6 to omega-3 polyunsaturated fatty acid ratio) of springbok meat. Sex influenced the chemical composition of springbok meat; however, the influence on the sensory profile was minor (sweet taste; P < 0.001). CONCLUSION: Farm location could influence the sensory quality and composition of springbok meat and should be considered when harvesting for meat production. Sex does not have to be considered for the marketing of springbok meat. (c) 2017 Society of Chemical Industry. PMID- 29034985 TI - Burden of atrial fibrillation in Maori and Pacific people in New Zealand: a cohort study. AB - BACKGROUND: Atrial fibrillation (AF) is a major risk factor for ischaemic stroke and cardiovascular events. In New Zealand (NZ), Maori (indigenous New Zealanders) and Pacific people experience higher rates of AF compared with non-Maori/non Pacific people. AIM: To describe a primary care population with AF in NZ. Stroke risk and medication adherence according to ethnicity are also detailed. METHODS: Electronic medical records for adults (>=20 years, n = 135 840, including 19 918 Maori and 43 634 Pacific people) enrolled at 37 NZ general practices were analysed for AF diagnosis and associated medication prescription information. RESULTS: The overall prevalence of non-valvular AF (NVAF) in this population was 1.3% (1769), and increased with age (4.4% in people >=55 years). Maori aged >=55 years were more likely to be diagnosed with NVAF (7.3%) than Pacific (4.0%) and non-Maori/non-Pacific people (4.1%, P < 0.001). Maori and Pacific NVAF patients were diagnosed with AF 10 years earlier than non-Maori/non-Pacific patients (median age of diagnosis: Maori = 60 years, Pacific = 61 years, non-Maori/non Pacific = 71 years, P < 0.001). Overall, 67% of NVAF patients were at high risk for stroke (CHA2 DS2 -VASc >= 2) at the time of AF diagnosis. Almost half (48%) of Maori and Pacific NVAF patients aged <65 years were at high risk for stroke, compared with 22% of non-Maori/non-Pacific (P < 0.001). Irrespective of ethnic group, adherence to AF medication was suboptimal in those NVAF patients with a high risk of stroke or with stroke history. CONCLUSION: AF screening and stroke thromboprophylaxis in Maori and Pacific people could start below the age of 65 years in NZ. PMID- 29034986 TI - Access to a youth-specific service for young adults with type 1 diabetes mellitus is associated with decreased hospital length of stay for diabetic ketoacidosis. AB - BACKGROUND: Management of type 1 diabetes mellitus in youth with diabetes (YWD) is complex, and glycaemic control often deteriorates during this challenging period. We hypothesise that attendance at a youth-specific diabetes clinic reduces hospital admission rates and length of stay (LOS) for diabetic ketoacidosis (DKA). AIMS: To assess the impact of a youth-specific diabetes service for YWD on DKA admissions in two adjacent local health districts. METHODS: A retrospective cohort analysis of admissions for DKA in YWD aged 15-25 years, presenting to four hospitals in Western Sydney in 2011 was performed. Number of admissions, LOS and DKA severity were assessed. Cost was analysed as a function of LOS. Groups were divided by attendance at a youth-specific diabetes service and no record of attendance. RESULTS: There were 55 DKA admissions from 39 patients (median age 20.0 years); the majority of admissions (82%) was YWD not supported by a youth-specific diabetes service. Median LOS was significantly longer in the unsupported group (3.0 vs 1.5 days, P = 0.028). Median pH at presentation in the unsupported group was significantly lower, 7.11 versus 7.23 (P = 0.05). The admission rate was four times greater for those not supported by youth-specific diabetes services, 5.5% compared with 1.6% (P = 0.001). The estimated cost saved by youth-specific services was over $250,000 pa. CONCLUSIONS: Lack of access to supported care for YWD during transition from paediatric to adult care has an adverse impact on subsequent DKA admission rates and LOS. PMID- 29034987 TI - Global-scale impacts of nitrogen deposition on tree carbon sequestration in tropical, temperate, and boreal forests: A meta-analysis. AB - Elevated nitrogen (N) deposition may increase net primary productivity in N limited terrestrial ecosystems and thus enhance the terrestrial carbon (C) sink. To assess the magnitude of this N-induced C sink, we performed a meta-analysis on data from forest fertilization experiments to estimate N-induced C sequestration in aboveground tree woody biomass, a stable C pool with long turnover times. Our results show that boreal and temperate forests responded strongly to N addition and sequestered on average an additional 14 and 13 kg C per kg N in aboveground woody biomass, respectively. Tropical forests, however, did not respond significantly to N addition. The common hypothesis that tropical forests do not respond to N because they are phosphorus-limited could not be confirmed, as we found no significant response to phosphorus addition in tropical forests. Across climate zones, we found that young forests responded more strongly to N addition, which is important as many previous meta-analyses of N addition experiments rely heavily on data from experiments on seedlings and young trees. Furthermore, the C N response (defined as additional mass unit of C sequestered per additional mass unit of N addition) was affected by forest productivity, experimental N addition rate, and rate of ambient N deposition. The estimated C-N responses from our meta analysis were generally lower that those derived with stoichiometric scaling, dynamic global vegetation models, and forest growth inventories along N deposition gradients. We estimated N-induced global C sequestration in tree aboveground woody biomass by multiplying the C-N responses obtained from the meta analysis with N deposition estimates per biome. We thus derived an N-induced global C sink of about 177 (112-243) Tg C/year in aboveground and belowground woody biomass, which would account for about 12% of the forest biomass C sink (1,400 Tg C/year). PMID- 29034988 TI - The global Filipino nurse: An integrative review of Filipino nurses' work experiences. AB - AIM: To understand the work-related experiences of Philippine-trained nurses working globally. BACKGROUND: The Philippines is a major source country of foreign-trained nurses located globally. However, there is paucity of research on professional factors and career related issues affecting foreign-trained nurses' work experiences. METHODS: An integrative review through a comprehensive search of literature was undertaken from November 2015 and was repeated in August 2016. Seven articles satisfied the selection criteria. RESULTS: Filipino nurses experienced differences in the practice of nursing in terms of work process, roles and autonomy. Moreover, they encountered challenges such as work-related discrimination and technical difficulties within the organisation. CONCLUSION: A clear understanding of Filipino nurses' work experiences and the challenges they have encountered suggests identification of important constructs influencing effective translation of nursing practice across cultures and health systems, which then form the basis for support strategies. IMPLICATION FOR NURSING MANAGEMENT: It is critical to recognize foreign-trained nurses' experience of work-related differences and challenges as these foster favorable conditions for the management team to plan and continually evaluate policies around recruitment, retention and support offered to these nurses. Furthermore, findings suggest internationalization of nursing framework and standards integrating a transcultural paradigm among staff members within a work organisation. PMID- 29034989 TI - Neurological presentations revealing acquired copper deficiency: diagnosis features, aetiologies and evolution in seven patients. AB - BACKGROUND: Acquired copper deficiency (ACD) is a rare condition usually diagnosed from haematological changes. AIMS: To characterise the diagnosis features and the evolution of patients with ACD revealed by neurological symptoms. METHODS: Clinical, biological and magnetic resonance imaging (MRI) data were prospectively analysed at diagnosis and during follow up under copper supplementation. RESULTS: Seven patients were studied over a 5-year period. Time to diagnosis ranged from 2.5 to 15 months. Subacute ascending paraesthesias and gait disorder were the first symptoms. All patients had a posterior cord syndrome (PCS) with sensory ataxic gait associated with superficial hypoesthesia of the feet; 50% had also lateral cord signs. Electrodiagnostic tests diagnosed a lower limb sensory neuropathy in four patients. Spinal cord MRI was normal in three of seven patients. Anaemia and lymphopenia were diagnosed in six of seven patients. Serum copper was always low, and urinary copper was low or normal. Serum and urinary zinc were high in four patients. Decreased copper intake (stoma/parenteral nutrition, malnutrition, malabsorption with lack of vitamin supplementation after bariatric or other digestive surgeries) was found in four patients, and the chronic use of denture adhesive paste containing zinc was discovered in four patients. One patient had both the causes recorded. After copper supplementation, copper balance and then haematological disturbances were the first features to normalise gradually in 2 months. Radiological myelitis disappeared in 10 months, whereas neurological symptoms improved in six of seven patients after a mean follow up of 2 years. CONCLUSIONS: Progressive PCS with anaemia and lymphopenia must raise the possibility of an ACD. Early copper supplementation could increase the neurological prognosis. PMID- 29034990 TI - How disturbance, competition, and dispersal interact to prevent tree range boundaries from keeping pace with climate change. AB - Climate change is expected to cause geographic shifts in tree species' ranges, but such shifts may not keep pace with climate changes because seed dispersal distances are often limited and competition-induced changes in community composition can be relatively slow. Disturbances may speed changes in community composition, but the interactions among climate change, disturbance and competitive interactions to produce range shifts are poorly understood. We used a physiologically based mechanistic landscape model to study these interactions in the northeastern United States. We designed a series of disturbance scenarios to represent varied disturbance regimes in terms of both disturbance extent and intensity. We simulated forest succession by incorporating climate change under a high-emissions future, disturbances, seed dispersal, and competition using the landscape model parameterized with forest inventory data. Tree species range boundary shifts in the next century were quantified as the change in the location of the 5th (the trailing edge) and 95th (the leading edge) percentiles of the spatial distribution of simulated species. Simulated tree species range boundary shifts in New England over the next century were far below (usually <20 km) that required to track the velocity of temperature change (usually more than 110 km over 100 years) under a high-emissions scenario. Simulated species' ranges shifted northward at both the leading edge (northern boundary) and trailing edge (southern boundary). Disturbances may expedite species' recruitment into new sites, but they had little effect on the velocity of simulated range boundary shifts. Range shifts at the trailing edge tended to be associated with photosynthetic capacity, competitive ability for light and seed dispersal ability, whereas shifts at the leading edge were associated only with photosynthetic capacity and competition for light. This study underscores the importance of understanding the role of interspecific competition and disturbance when studying tree range shifts. PMID- 29034991 TI - Concept analysis: Role ambiguity in senior nursing students. AB - Role ambiguity is a lack of clarity or uncertainty related to one's position or role. Role ambiguity has been documented in the literature in relationship to athletics, industry, business, education, and nursing. However, a concept analysis has not been performed. Therefore, the process of concept analysis outlined by Walker and Avant is now used to look at the concept of role ambiguity and its relevance to senior nursing students' socialization and education into the profession of nursing. Attributes, antecedents, consequences, and empiric referents are discussed and theories commonly associated with role ambiguity are presented. At the end of the analysis, an operational definition is provided for use in exploring the concept of role ambiguity as it relates to senior nursing students' articulation of the role of the professional nurse. PMID- 29034992 TI - Combined prognostic value of pretreatment anemia and cervical node necrosis in patients with nasopharyngeal carcinoma receiving intensity-modulated radiotherapy: A large-scale retrospective study. AB - This study investigated the combined prognostic value of pretreatment anemia and cervical node necrosis (CNN) in patients with nasopharyngeal carcinoma (NPC). Retrospective review of 1302 patients with newly diagnosed nonmetastatic NPC treated with intensity-modulated radiotherapy (IMRT) +/- chemotherapy. Patients were classified into four groups according to anemia and CNN status. Survival was compared using the log-rank test. Independent prognostic factors were identified using the Cox proportional hazards model. The primary end-point was overall survival (OS); secondary end-points were disease-free survival (DFS), locoregional relapse-free survival (LRRFS), and distant metastasis-free survival (DMFS). Pretreatment anemia was an independent, adverse prognostic factor for DMFS; pretreatment CNN was an independent adverse prognostic factor for all end points. Five-year survival for non-anemia and non-CNN, anemia, CNN, and anemia and CNN groups were: OS (93.1%, 87.2%, 82.9%, 76.3%, P < 0.001), DFS (87.0%, 84.0%, 73.9%, 64.6%, P < 0.001), DMFS (94.1%, 92.1%, 82.4%, 72.5%, P < 0.001), and LRRFS (92.8%, 92.4%, 88.7%, 84.0%, P = 0.012). The non-anemia and non-CNN group had best survival outcomes; anemia and CNN group, the poorest. Multivariate analysis demonstrated combined anemia and CNN was an independent prognostic factor for OS, DFS, DMFS, and LRRFS (P < 0.05). The combination of anemia and CNN is an independent adverse prognostic factor in patients with NPC treated using IMRT +/- chemotherapy. Assessment of pretreatment anemia and CNN improved risk stratification, especially for patients with anemia and CNN who have poorest prognosis. This study may aid the design of individualized treatment plans to improve treatment outcomes. PMID- 29034993 TI - Impact of marital status at diagnosis on survival and its change over time between 1973 and 2012 in patients with nasopharyngeal carcinoma: a propensity score-matched analysis. AB - The impact of marital status at diagnosis on survival outcomes and its change over time in patients with nasopharyngeal carcinoma (NPC) are unclear. The Surveillance, Epidemiology, and End Results (SEER) database was used to identify patients diagnosed with NPC in the United States from 1973 to 2012. A primary comparison (married vs. unmarried) was implemented with 1:1 propensity score matching. Secondary comparisons were performed individually between three unmarried subgroups (single, separated/divorced, widowed) and married group. The effect of marital status on cause-specific survival (CSS) and overall survival (OS) were evaluated using univariate/multivariate analysis. Moreover, we investigated the change over time (1973-2012) in the effect of marital status on NPC survival. Married patients had better 5-year CSS/OS than unmarried patients (61.1% vs. 52.6%, P < 0.001; 55.6% vs. 45.3%, P < 0.001, respectively). In multivariate analysis, unmarried patients had significantly poorer CSS/OS than married patients (adjusted hazard ratio [aHR] = 1.35, P < 0.001; aHR = 1.40, P < 0.001, respectively). The survival benefit of being married was only detected in non-Hispanic white and Chinese American patients. Single, separated/divorced, and widowed patients had significantly poorer CSS/OS than married patients (aHR = 1.37 and 1.37; 1.46 and 1.42; 1.43 and 1.48, respectively; all P < 0.001). The change over time in the effect of marital status on survival was more stable in male than female. The strength of the negative effect of separated/divorced and widowed status showed a downward and upward trend, respectively. Gender difference in the adverse effect of single status on NPC survival became smaller over time. Only non-Hispanic white and Chinese American patients with NPC obtain survival benefits from married status. Single and widowed patients are regarded as high-risk population. PMID- 29034994 TI - Risk factors of lymph node metastasis in patients with non-small cell lung cancer <= 2 cm in size: A monocentric population-based analysis. AB - AIM: This study was designed to determine the risk factors of lymph node metastasis in non-small cell lung cancer (NSCLC) patients with tumors <= 2 cm, using the Shanghai Chest Hospital Lung Cancer Database. METHODS: Five hundred and eighteen patients with NSCLC <= 2 cm were included in this study, and were classified into lymph node-positive and lymph node-negative groups. Univariate and multivariate logistic regression analyses were performed to select the independent risk factors for lymph node metastasis in NSCLC patients. RESULTS: No evidence of metastasis was found in tumors <= 1 cm, all positive results were in tumors sized 1-2 cm. Imaging characteristics, including solid and part-solid nodules, were strongly associated with lymph node metastasis (odds ratio [OR] 24.959, 95% confidence interval [CI] 5.999-103.835, P < 0.001; OR 12.559, 95% CI 3.564-44.259, P < 0.001) and subgroup logistic analysis (OR 21.384, 95% CI 5.058 90.407, P < 0.001; OR 11.632, 95% CI 3.290-41.126, P < 0.001). Greater lymph node metastasis was observed in non-adeno non-squamous carcinoma. The presence of pleural invasion and carcinoembryonic antigen levels indicated lymph node dissection. Similar results were revealed in subgroup analysis in tumors <= 2 to > 1 cm. CONCLUSION: Size had a great impact on lymph node metastasis, especially tumors of 1-2 cm. Preoperative imaging, non-adeno non-squamous carcinoma, pleural invasion, and carcinoembryonic antigen all indicated lymph node dissection. There was no discrepancy between N1 and N2 positive lymph nodes. PMID- 29034996 TI - Interleukin 1beta polymorphism and serum level are associated with pediatric asthma. AB - BACKGROUND AND AIM: Interleukin-1 is a pro-inflammatory cytokine found in two forms (alpha and beta). The alpha form is mainly cell-bound, whereas IL-1beta is primarily secreted by macrophages in response to immune system stimulation. We hypothesized that polymorphic variants of interleukin 1 genes may play a role in childhood asthma risk. The aim of this study was to investigate if IL-1alpha and beta polymorphism is associated with asthma in a pediatric population and if the genotype affects its serum level. METHODS: The studied population included 310 children aged 6-18 years old (152 with asthma and 158 healthy children). Genotypes were determined with real-time PCR method using TaqMan Genotyping Assays. Serum level was measured with ELISA Set. Statistical analysis was done in Statistica v.12.0. Linkage disequilibrium and haplotype analysis was done in Haploview v. 4.2. RESULTS: We found that three IL-1beta polymorphisms rs1143634, rs1143633, and rs1143643 were associated with allergic asthma risk (P = 0.034; OR = 1.523; P = 0.024, OR = 1.477; 0.044, OR = 1.420, respectively). We also found a strong linkage disequilibrium between these polymorphisms and CAC haplotype was associated significantly with asthma risk (P = 0.023). For IL1alpha, we did not observe association with asthma. We then analyzed if IL-1beta expression was altered in serum and we found that asthmatic children showed significantly higher IL-1beta levels than healthy controls (P = 0.047). No association with asthma was observed for IL-1 alpha variants. CONCLUSIONS: This study indicates that IL-1beta gene polymorphism may affect allergic asthma risk in children. PMID- 29034997 TI - Everything You Always Wanted to Know about Poly-l-lysine Dendrigrafts (But Were Afraid to Ask). AB - Less than a decade ago, dendrigrafts of poly-l-lysine (DGLs) joined the family of polycationic dendritic macromolecules. Resulting from the iterative polycondensation of an N-carboxyanhydride in water, four generations of the dendrigraft can be obtained on a multigram scale and without chromatographic purification. DGLs share features with both dendrimers and hyperbranched polymers, but turned out to have unique biophysical and bioactive properties. The macromolecules-in their native form or functionalized-have been extensively characterized by various analytical and computational methods, and have already found numerous applications in the biomedical field, such as drug and gene delivery, biomaterials, tissue engineering, bioimaging, and biosensing. Despite a growing interest for DGLs, there is still plenty of room for further exciting developments that could result from a better exposure of these macromolecules, which is the ambition of this short review. PMID- 29034995 TI - miR-1 suppresses the proliferation and promotes the apoptosis of esophageal carcinoma cells by targeting Src. AB - Nonreceptor tyrosine kinase c-Src, also known as Src, is a potent oncogene involved in a series of biological processes including cell growth, differentiation, and apoptosis; however, its expression pattern and function in esophageal cancer is poorly addressed. In this study, abnormal overexpression of Src protein was observed in esophageal cancer tissues, which fuelled the speculation that microRNA-mediated posttranscriptional regulatory mechanism might be involved. Bioinformatic analyses were applied to identify miRNAs that could potentially target Src. miR-1 was predicted and further validated as a direct repressor of Src. Moreover, we manipulated knockdown and overexpression experiment on TE-1 and TE-10 cells to demonstrate miR-1 suppressed proliferation and promoted apoptosis in esophageal cancer cells by inhibiting Src. Taken together, this study underlines a negative regulatory mechanism in which miR-1 serves as a suppressor of Src in esophageal cancer cells and may provide insights into novel therapeutic approaches for esophageal cancer. PMID- 29034999 TI - Home supply of emergency oral steroids and reduction in asthma healthcare utilization. AB - OBJECTIVE: To determine if children with moderate-to-severe persistent asthma have decreased healthcare utilization after receiving a prescription and instructions to use an at home emergency supply of oral steroids during asthma exacerbations. METHODS: A quasi-experimental design study with a historical control from retrospective chart review was performed for patients aged 2-18 years seen in a tertiary care pediatric pulmonary clinic for moderate to severe persistent asthma. Baseline utilization of the emergency department, inpatient hospital, and pediatric intensive care unit for asthma exacerbations was collected from 24 months prior to initial prescription for at home steroids and compared with 12 months post-intervention using Poisson Regression. A subgroup analysis was performed for ages 6-18 evaluating school age children alone. RESULTS: Patients (N = 132) were averaged 10 years +/- 3.9 years of age and 57% of patients were male. Emergency Department visit rates significantly declined in the 12 months after receiving a prescription and instructions for home emergency steroid supply compared with the 12 months prior to this intervention (0.39 visits/patient/year vs 0.67, P < 0.01). There was a trend for a decline in inpatient (0.27 visits/patient/year vs 0.11, P = 0.09) and pediatric intensive care unit stay rates (0.11 visits/patient/year vs 0.05, P = 0.06). A subgroup analysis of ages 6-18 found similar results. CONCLUSIONS: Incorporation of home emergency oral steroids into the home management plan of children with moderate to-severe asthma can reduce asthma related Emergency Department visits. PMID- 29034998 TI - The albumin-bilirubin grade uncovers the prognostic relationship between hepatic reserve and immune dysfunction in HIV-associated hepatocellular carcinoma. AB - BACKGROUND: Hepatocellular carcinoma (HCC) is a leading cause of liver-related mortality in people living with HIV, where co-infection with hepatotropic viruses accelerates the course of chronic liver disease. AIM: To evaluate whether the albumin-bilirubin (ALBI) grade, a more accurate marker of liver dysfunction in HCC, might identify patients with progressive liver dysfunction in the context of HIV/hepatitis co-infection. METHODS: Using uni- and multi-variable analyses, we studied the albumin-bilirubin grade as a predictor of overall survival (OS) in a large, multi-center cohort of patients with HIV-associated HCC recruited from 44 centres in 9 countries within the Liver Cancer in HIV study group. Patients who underwent liver transplantation were excluded. RESULTS: A total of 387 patients, predominantly HCV co-infected (78%) with balanced representation of all Barcelona Clinic Liver Cancer (BCLC) stages (A = 33%, B = 18%, C = 37%, D = 12%) were recruited. At HCC diagnosis, 84% had been on anti-retrovirals for a median duration of 8.8 years. The albumin-bilirubin grade identified significant differences in median survival of 97 months for grade 1 (95% CI 13-180 months), 17 months for grade 2 (95% CI 11-22 months) and 6 months for grade 3 (95% CI 4-9 months, P < .001). A more advanced albumin-bilirubin grade correlated with lower CD4 counts (464/373/288 cells/mm3 for grades 1/2/3) and higher HIV viraemia (3.337/8.701/61.845 copies/mL for grades 1/2/3, P < .001). CONCLUSIONS: In this large, multi-center retrospective study, the albumin-bilirubin grade highlights the interplay between liver reserve and immune dysfunction as prognostic determinants in HIV-associated HCC. PMID- 29035001 TI - News & Announcements: American Society for Laser Medicine and Surgery, Inc. PMID- 29035000 TI - Use of sacubitril/valsartan in acute decompensated heart failure: a case report. AB - Refractory heart failure typically requires costly long-term, continuous intravenous inodilator infusions while patients await mechanical circulatory support or cardiac transplantation. The combined angiotensin receptor blocker neprilysin inhibitor, sacubitril/valsartan, is a novel therapy that can increase levels of endogenous vasoactive peptides. This therapy has been recommended as an alternative agent in patients with chronic heart failure with reduced ejection fraction and New York Heart Association class II-III symptoms. Here, we report a case of a patient with refractory stage D heart failure with reduced ejection fraction who was successfully weaned off continuous intravenous inodilator support using sacubitril/valsartan after prior failed attempts using standard therapies. PMID- 29035002 TI - Short-term risk of hepatocellular carcinoma after hepatitis C virus eradication following direct-acting anti-viral treatment. AB - BACKGROUND: With the development of direct-acting anti-virals (DAAs), almost all patients with chronic hepatitis C virus (HCV) infection can achieve sustained viral response (SVR). AIM: To evaluate the short-term risk of HCC among patients with SVR by DAAs, including those with cirrhosis or previous HCC. METHODS: This large-scale, multicentre cohort study included 1,675 consecutive patients who achieved SVR by treatment with interferon-free sofosbuvir-based regimens, divided into groups with (n = 152) or without previous HCC (n = 1,523). The Kaplan-Meier method and Cox proportional hazard analysis were used to calculate the cumulative HCC incidence and related factors of HCC. RESULTS: During the follow-up period (median: 17 months), 46 (2.7%) patients developed HCC. The 1-year cumulative rates of de novo HCC were 0.4% and 4.9% for the noncirrhosis and cirrhosis groups respectively (log-rank test: P < 0.001). For cirrhotic patients, serum alpha fetoprotein level at the end of treatment (EOT-AFP) was the strongest predictor of de novo HCC. The 1-year cumulative de novo HCC rates were 1.4% and 13.1% in the EOT-AFP < 9.0 ng/mL and >= 9.0 ng/mL groups (cut-off value) respectively (log rank test: P < 0.001). The 1-year cumulative rates of HCC recurrence were 6.5% and 23.1% for the noncirrhosis and cirrhosis groups respectively (log-rank test: P = 0.023). For cirrhotic patients, previous HCC characteristics were significantly associated with HCC recurrence. In contrast, sex, age and metabolic features did not influence de novo HCC or recurrence. CONCLUSIONS: For cirrhotic patients after elimination of HCV, serum EOT-AFP level and previous HCC characteristics would be useful markers for predicting de novo HCC or recurrence. PMID- 29035003 TI - Review article: hepatitis B core-related antigen (HBcrAg): an emerging marker for chronic hepatitis B virus infection. AB - BACKGROUND: Chronic hepatitis B (CHB) cannot be completely eradicated due to the presence of covalently closed circular DNA (cccDNA) in the nuclei of infected hepatocytes. While quantification of intrahepatic cccDNA requires liver biopsies, serological markers can be non-invasive alternatives to reflect intrahepatic viral replicative activity. Recently, hepatitis B core-related antigen (HBcrAg) has been advocated as a novel serum marker for disease monitoring and prognostication of CHB. AIM: To examine the virological aspect and clinical application of HBcrAg with respect to the natural history and treatment of CHB. METHODS: We reviewed all papers published in the PubMed journal list and abstracts from major international meetings that included the keyword "HBcrAg" or "hepatitis B core-related antigen" until March 2017. Selected studies were compared and summarised on the basis of existing theories, as well as the authors' experience. RESULTS: HBcrAg exhibited good correlation with intrahepatic (ih) cccDNA, ih total hepatitis B virus (HBV) DNA, serum HBV DNA and to a lesser extent HBV surface antigen (HBsAg). In situations where serum HBV DNA levels become undetectable or HBsAg loss is achieved, HBcrAg can still be detectable. This marker is helpful in differentiation of HBeAg-negative chronic hepatitis from HBeAg-negative chronic infection, predicting spontaneous or treatment induced HBeAg seroconversion, sustained response to nucleos(t)ide analogue (NA), risk of HBV reactivation in occult HBV infection under immunosuppressive therapies, and risk of hepatocellular carcinoma (HCC) development as well as post operative HCC recurrence. CONCLUSIONS: HBcrAg is a potential surrogate marker of cccDNA. It may soon become a useful marker for disease monitoring, predicting treatment response and disease outcome of chronic hepatitis B. PMID- 29035004 TI - A protein with an unusually short PPR domain, MEF8, affects editing at over 60 Arabidopsis mitochondrial C targets of RNA editing. AB - An RNA-seq approach was used to investigate the role of a PLS-subfamily pentatricopeptide repeat protein, Mitochondrial Editing Factor 8 (MEF8), on editing in Arabidopsis mitochondria and plastids. MEF8 has an intact DYW domain, but possesses an unusually short PLS repeat region of only five repeats. The MEF8 T-DNA insertion (mef8) line exhibited reduced editing at 38 mitochondrial editing sites and increased editing at 24 sites; therefore the absence of MEF8 affects 11% of the mitochondrial editome. Notably, 60% of the matR transcripts' sites showed a decrease of editing extent in the mef8 mutant. An E549A substitution in the MEF8 protein replaced the putatively catalytic glutamate of the HXE motif in the DYW domain. Complementation with MEF8-E549A failed to restore editing at the main target sites but was able to restore editing at the matR transcript; it also decreased the editing extent of most of the C targets exhibiting an increase of editing extent in the mef8 mutant plant. Thus, MEF8 has two antagonistic effects on mitochondrial editing: stimulatory, which requires a catalytic glutamate for most of the targets except for the matR transcript, and inhibitory, for which glutamate is dispensable. PMID- 29035005 TI - Living Supramolecular Polymerization of a Perylene Bisimide Dye into Fluorescent J-Aggregates. AB - The self-assembly of a new perylene bisimide (PBI) organogelator with 1,7 dimethoxy substituents in the bay position affords non-fluorescent H-aggregates at high cooling rates and fluorescent J-aggregates at low cooling rates. Under properly adjusted conditions, the kinetically trapped "off-pathway" H-aggregates are transformed into the thermodynamically favored J-aggregates, a process that can be accelerated by the addition of J-aggregate seeds. Spectroscopic studies revealed a subtle interplay of pi-pi interactions and intra- and intermolecular hydrogen bonding for monomeric, H-, and J-aggregated PBIs. Multiple polymerization cycles initiated from the seed termini demonstrate the living character of this chain-growth supramolecular polymerization process. PMID- 29035006 TI - Applying systems thinking to inform studies of wildlife trade in primates. AB - Wildlife trade presents a major threat to primate populations, which are in demand from local to international scales for a variety of uses from food and traditional medicine to the exotic pet trade. We argue that an interdisciplinary framework to facilitate integration of socioeconomic, anthropological, and biological data across multiple spatial and temporal scales is essential to guide the study of wildlife trade dynamics and its impacts on primate populations. Here, we present a new way to design research on wildlife trade in primates using a systems thinking framework. We discuss how we constructed our framework, which follows a social-ecological system framework, to design an ongoing study of local, regional, and international slow loris (Nycticebus spp.) trade in Vietnam. We outline the process of iterative variable exploration and selection via this framework to inform study design. Our framework, guided by systems thinking, enables recognition of complexity in study design, from which the results can inform more holistic, site-appropriate, and effective trade management practices. We place our framework in the context of other approaches to studying wildlife trade and discuss options to address foreseeable challenges to implementing this new framework. PMID- 29035007 TI - Large soil organic carbon increase due to improved agronomic management in the North China Plain from 1980s to 2010s. AB - Agricultural soils are widely recognized to be capable of carbon sequestration that contributes to mitigating CO2 emissions. To better understand soil organic carbon (SOC) stock dynamics and its driving and controlling factors corresponding with a period of rapid agronomic evolution from the 1980s to the 2010s in the North China Plain (NCP), we collected data from two region-wide soil sampling campaigns (in the 1980s and 2010s) and conducted an analysis of the controlling factors using the random forest model. Between the 1980s and 2010s, environmental (i.e. soil salinity/fertility) and societal (i.e. policy/techniques) factors both contributed to adoption of new management practices (i.e. chemical fertilizer application/mechanization). Results of our work indicate that SOC stocks in the NCP croplands increased significantly, which also closely related to soil total nitrogen changes. Samples collected near the surface (0-20 cm) and deeper (20-40 cm) both increased by an average of 9.4 and 5.1 Mg C ha-1 , respectively, which are equivalent to increases of 73% and 56% compared with initial SOC stocks in the 1980s. The annual carbon sequestration amount in surface soils reached 10.9 Tg C year-1 , which contributed an estimated 43% of total carbon sequestration in all of China's cropland on just 27% of its area. Successful desalinization and the subsequent increases in carbon (C) inputs, induced by agricultural projects and policies intended to support crop production (i.e. reconstruction of low yield farmland, and agricultural subsidies), combined with improved cultivation practices (i.e. fertilization and straw return) since the early 1980s were the main drivers for the SOC stock increase. This study suggests that rehabilitation of NCP soils to reduce salinity and increase crop yields have also served as a pathway for substantial soil C sequestration. PMID- 29035008 TI - Average mid-sleep time as a proxy for circadian phase. AB - Assessments of circadian phase using melatonin are laborious. Sleep-time indices allow for less laborious phase calculations, but common indices weakly represent melatonin phase. We show how a single sleep-time assessment can represent melatonin phase by over 60%, improving the use of subjective sleep to mirror objective circadian phase. PMID- 29035010 TI - Ecosystem regime shifts disrupt trophic structure. AB - Regime shifts between alternative stable ecosystem states are becoming commonplace due to the combined effects of local stressors and global climate change. Alternative states are characterized as substantially different in form and function from pre-disturbance states, disrupting the delivery of ecosystem services and functions. On coral reefs, regime shifts are typically characterized by a change in the benthic composition from coral to macroalgal dominance. Such fundamental shifts in the benthos are anticipated to impact associated fish communities that are reliant on the reef for food and shelter, yet there is limited understanding of how regime shifts propagate through the fish community over time, relative to initial or recovery conditions. This study addresses this knowledge gap using long-term data of coral reef regime shifts and recovery on Seychelles reefs following the 1998 mass bleaching event. It shows how trophic structure of the reef fish community becomes increasingly dissimilar between alternative reef ecosystem states (regime-shifted vs. recovering) with time since disturbance. Regime-shifted reefs developed a concave trophic structure, with increased biomass in base trophic levels as herbivorous species benefitted from increased algal resources. Mid trophic level species, including specialists such as corallivores, declined with loss of coral habitat, while biomass was retained in upper trophic levels by large-bodied, generalist invertivores. Recovering reefs also experienced an initial decline in mid trophic level biomass, but moved toward a bottom-heavy pyramid shape, with a wide range of feeding groups (e.g., planktivores, corallivores, omnivores) represented at mid trophic levels. Given the importance of coral reef fishes in maintaining the ecological function of coral reef ecosystems and their associated fisheries, understanding the effects of regime shifts on these communities is essential to inform decisions that enhance ecological resilience and economic sustainability. PMID- 29035009 TI - Prevalence, antibiotic resistance, and MLST typing of Helicobacter pylori in Algiers, Algeria. AB - BACKGROUND: Helicobacter pylori infection is common in Algeria, but there are few data on the characterization of isolated strains. The aim of this study was to update data on the prevalence of H. pylori in patients submitted to endoscopy, antibiotic resistance, and phylogeography of H. pylori strains isolated in Algiers. MATERIALS AND METHODS: This is a prospective study carried out between November 2015 and August 2016. The culture of H. pylori was performed on antral and fundic gastric biopsies of adult patients from 3 hospitals. A real-time PCR using the fluorescence resonance energy transfer (FRET) principle for the detection of H. pylori followed by a melting curve analysis for the detection of mutations associated with resistance to clarithromycin was applied. Differentiation between antral and fundic isolates of the same patient was also determined by RAPD, and an MLST typing was performed for characterization of the phylogeographic group of H. pylori. RESULTS: By real-time PCR, the prevalence of H. pylori infection among the 147 patients included was 57%. Culture was positive in only 29% of the cases. Twenty-seven percent of patients had received H. pylori eradication treatment. The primary and secondary resistance rates to clarithromycin were 23% and 36%, respectively, and to metronidazole, 45% and 71%, respectively. Only one isolate was resistant to levofloxacin, and no resistance to amoxicillin, tetracycline, and rifampicin was detected. A double population was present in 14 patients. The MLST analysis classified the 42 H. pylori strains from 38 patients in 2 haplotypes: hpEurope (33) and hpNEAfrica (9). CONCLUSION: The prevalence of H. pylori remains high in Algeria but appears to be decreasing in recent years. High resistance to clarithromycin requires increased monitoring of the evolution of antibiotic resistance and adaptation of eradication therapy. PMID- 29035011 TI - Autonomic and Autacoid Pharmacology: Goodbye and thank you. PMID- 29035012 TI - Regulatory Effects of Black Rice Extract on Helicobacter pylori Infection-Induced Apoptosis. AB - SCOPE: Black rice extract (BRE) contains cyanidin 3-O-glucoside (C3G), an anthocyanin, as the major component. In this study, we found that BRE inhibits the mRNA and protein expression of genes encoding cytotoxin-associated protein A (cagA) and vacuolating protein A (vacA) in Helicobacter pylori 60190 strain. METHODS AND RESULTS: We performed RT-PCR and western blotting to show that BRE inhibits the mRNA and protein expression of SecA. Because SecA is involved in VacA export in bacteria, our result suggests a positive correlation between BRE induced inhibition of secA expression and VacA secretion. Further, we perform MTT assay and flow cytometry to show that BRE decreases the apoptosis of H. pylori infected KATO III cells. Finally, we perform western blotting to show that the cell-protective effect of BRE is associated with decreased levels of active proapoptotic proteins caspases and PARP and increased levels of antiapoptotic proteins survivin and XIAP in H. pylori-infected cells. CONCLUSION: Thus, our results indicate that BRE acts as a potent inhibitor of the biogenesis of H. pylori virulence proteins and decreases the apoptosis of H. pylori-infected cells. Moreover, our results suggest that BRE can be used to exert beneficial effects in patients with gastroduodenal diseases caused by H. pylori. PMID- 29035013 TI - Prebiotics for the prevention of allergies: A systematic review and meta-analysis of randomized controlled trials. AB - BACKGROUND: Prevalence of allergic diseases in infants is approximately 10% reaching 20 to 30% in those with an allergic first-degree relative. Prebiotics are selectively fermented food ingredients that allow specific changes in composition/activity of the gastrointestinal microflora. They modulate immune responses, and their supplementation has been proposed as an intervention to prevent allergies. OBJECTIVE: To assess in pregnant women, breastfeeding mothers, and infants (populations) the effect of supplementing prebiotics (intervention) versus no prebiotics (comparison) on the development of allergic diseases and to inform the World Allergy Organization guidelines. METHODS: We performed a systematic review of studies assessing the effects of prebiotic supplementation with an intention to prevent the development of allergies. RESULTS: Of 446 unique records published until November 2016 in Cochrane, MEDLINE, and EMBASE, 22 studies fulfilled a priori specified criteria. We did not find any studies of prebiotics given to pregnant women or breastfeeding mothers. Prebiotic supplementation in infants, compared to placebo, had the following effects: risk of developing eczema (RR: 0.68, 95% CI: 0.40 to 1.15), wheezing/asthma (RR, 0.37; 95% CI: 0.17 to 0.80), and food allergy (RR: 0.28, 95% CI: 0.08 to 1.00). There was no evidence of an increased risk of any adverse effects (RR: 1.01, 95% CI: 0.92 to 1.10). Prebiotic supplementation had little influence growth rate (MD: 0.92 g per day faster with prebiotics, 95% CI: 0 to 1.84) and the final infant weight (MD: 0.10 kg higher with prebiotics, 95% CI: -0.09 to 0.29). The certainty of these estimates is very low due to risk of bias and imprecision of the results. CONCLUSIONS: Currently available evidence on prebiotic supplementation to reduce the risk of developing allergies is very uncertain. PMID- 29035016 TI - Urolithiasis around the world. PMID- 29035014 TI - Nationwide trends in chemotherapy use and survival of elderly patients with metastatic pancreatic cancer. AB - Despite an aging population and underrepresentation of elderly patients in clinical trials, studies on elderly patients with metastatic pancreatic cancer are scarce. This study investigated the use of chemotherapy and survival in elderly patients with metastatic pancreatic cancer. From the Netherlands Cancer Registry, all 9407 patients diagnosed with primary metastatic pancreatic adenocarcinoma in 2005-2013 were selected to investigate chemotherapy use and overall survival (OS), using Kaplan-Meier and Cox proportional hazard regression analyses. Over time, chemotherapy use increased in all age groups (<70 years: from 26 to 43%, 70-74 years: 14 to 25%, 75-79 years: 5 to 13%, all P < 0.001, and >=80 years: 2 to 3% P = 0.56). Median age of 2,180 patients who received chemotherapy was 63 years (range 21-86 years, 1.6% was >=80 years). In chemotherapy-treated patients, with rising age (<70, 70-74, 75-79, >=80 years), microscopic tumor verification occurred less frequently (91-88-87-77%, respectively, P = 0.009) and OS diminished (median 25-26-19-16 weeks, P = 0.003). After adjustment for confounding factors, worse survival of treated patients >=75 years persisted. Despite limited chemotherapy use in elderly age, suggestive of strong selection, elderly patients (>=75 years) who received chemotherapy for metastatic pancreatic cancer exhibited a worse survival compared to younger patients receiving chemotherapy. PMID- 29035018 TI - Should we care more about SPARE? PMID- 29035017 TI - Stereotactic radiotherapy for primary renal cell carcinoma: time for larger-scale prospective studies. PMID- 29035019 TI - Getting to the right biopsy in the right patient at the right time. PMID- 29035020 TI - Management of urolithiasis in South Asia. PMID- 29035021 TI - Microbial communities and organic biomarkers in a Proterozoic-analog sinkhole. AB - Little Salt Spring (Sarasota County, FL, USA) is a sinkhole with groundwater vents at ~77 m depth. The entire water column experiences sulfidic (~50 MUM) conditions seasonally, resulting in a system poised between oxic and sulfidic conditions. Red pinnacle mats occupy the sediment-water interface in the sunlit upper basin of the sinkhole, and yielded 16S rRNA gene clones affiliated with Cyanobacteria, Chlorobi, and sulfate-reducing clades of Deltaproteobacteria. Nine bacteriochlorophyll e homologues and isorenieratene indicate contributions from Chlorobi, and abundant chlorophyll a and pheophytin a are consistent with the presence of Cyanobacteria. The red pinnacle mat contains hopanoids, including 2 methyl structures that have been interpreted as biomarkers for Cyanobacteria. A single sequence of hpnP, the gene required for methylation of hopanoids at the C 2 position, was recovered in both DNA and cDNA libraries from the red pinnacle mat. The hpnP sequence was most closely related to cyanobacterial hpnP sequences, implying that Cyanobacteria are a source of 2-methyl hopanoids present in the mat. The mats are capable of light-dependent primary productivity as evidenced by 13 C-bicarbonate photoassimilation. We also observed 13 C-bicarbonate photoassimilation in the presence of DCMU, an inhibitor of electron transfer to Photosystem II. Our results indicate that the mats carry out light-driven primary production in the absence of oxygen production-a mechanism that may have delayed the oxygenation of the Earth's oceans and atmosphere during the Proterozoic Eon. Furthermore, our observations of the production of 2-methyl hopanoids by Cyanobacteria under conditions of low oxygen and low light are consistent with the recovery of these structures from ancient black shales as well as their paucity in modern marine environments. PMID- 29035023 TI - When the Universe Gets Really Small. PMID- 29035022 TI - Microbial diversity and iron oxidation at Okuoku-hachikurou Onsen, a Japanese hot spring analog of Precambrian iron formations. AB - Banded iron formations (BIFs) are rock deposits common in the Archean and Paleoproterozoic (and regionally Neoproterozoic) sedimentary successions. Multiple hypotheses for their deposition exist, principally invoking the precipitation of iron via the metabolic activities of oxygenic, photoferrotrophic, and/or aerobic iron-oxidizing bacteria. Some isolated environments support chemistry and mineralogy analogous to processes involved in BIF deposition, and their study can aid in untangling the factors that lead to iron precipitation. One such process analog system occurs at Okuoku-hachikurou (OHK) Onsen in Akita Prefecture, Japan. OHK is an iron- and CO2 -rich, circumneutral hot spring that produces a range of precipitated mineral textures containing fine laminae of aragonite and iron oxides that resemble BIF fabrics. Here, we have performed 16S rRNA gene amplicon sequencing of microbial communities across the range of microenvironments in OHK to describe the microbial diversity present and to gain insight into the cycling of iron, oxygen, and carbon in this ecosystem. These analyses suggest that productivity at OHK is based on aerobic iron-oxidizing Gallionellaceae. In contrast to other BIF analog sites, Cyanobacteria, anoxygenic phototrophs, and iron-reducing micro-organisms are present at only low abundances. These observations support a hypothesis where low growth yields and the high stoichiometry of iron oxidized per carbon fixed by aerobic iron-oxidizing chemoautotrophs like Gallionellaceae result in accumulation of iron oxide phases without stoichiometric buildup of organic matter. This system supports little dissimilatory iron reduction, further setting OHK apart from other process analog sites where iron oxidation is primarily driven by phototrophic organisms. This positions OHK as a study area where the controls on primary productivity in iron-rich environments can be further elucidated. When compared with geological data, the metabolisms and mineralogy at OHK are most similar to specific BIF occurrences deposited after the Great Oxygenation Event, and generally discordant with those that accumulated before it. PMID- 29035024 TI - Half-Metallicity in Co-Doped WSe2 Nanoribbons. AB - The recent development of two-dimensional transition-metal dichalcogenides in electronics and optoelelectronics has triggered the exploration in spintronics, with high demand in search for half-metallicity in these systems. Here, through density functional theory (DFT) calculations, we predict robust half-metallic behaviors in Co-edge-doped WSe2 nanoribbons (NRs). With electrons partially occupying the antibonding state consisting of Co 3dyz and Se 4pz orbitals, the system becomes spin-polarized due to the defect-state-induced Stoner effect and the strong exchange splitting eventually gives rise to the half-metallicity. The half-metal gap reaches 0.15 eV on the DFT generalized gradient approximation level and increases significantly to 0.67 eV using hybrid functional. Furthermore, we find that the half-metallicity sustains even under large external strain and relatively low edge doping concentration, which promises the potential of such Co-edge-doped WSe2 NRs in spintronics applications. PMID- 29035025 TI - Substrate-Independent Ag-Nanoparticle-Loaded Hydrogel Coating with Regenerable Bactericidal and Thermoresponsive Antibacterial Properties. AB - We report a Ag-nanoparticle (AgNP)-based substrate-independent bactericidal hydrogel coating with thermoresponsive antibacterial property. To attach the hydrogel coating onto model substrate, we first coated ene-functionalized dopamine on the substrate, and then the hydrogel thin layer was formed on the surface via the UV light initiated surface cross-linking copolymerization of N isopropylacrylamide (NIPAAm) and sodium acrylate (AANa). Then, Ag ions were adsorbed into the hydrogel layers and reduced to AgNPs by sodium borohydride. The coating showed robust bactericidal ability against Escherichia coli and Staphylococcus aureus toward both contacted bacteria and the bacteria in the surrounding. Upon a reduction of the temperature below the LCST of PNIPAAm, the improved surface hydrophilicity and swollen PNIPAAm could detach the attached dead bacteria. Meanwhile, the long-lasting and regenerable antibacterial properties could be achieved by repeatedly loading AgNPs. By precisely controlling the AgNP loading amounts, the coating showed excellent hemocompatibility and no cytotoxity. Additionally, the coating could be applied to modify cell culture plate, since it could support cell adhesion and proliferation at 37 degrees C, while detach the cell by changing the temperature below lower critical solution temperature without the treatment of proteases. The study thus presents a promising way to fabricate thermoresponsive and regenerable antibacterial surfaces on diverse materials and devices for biomedical applications. PMID- 29035026 TI - Schottky Barrier Height of Pd/MoS2 Contact by Large Area Photoemission Spectroscopy. AB - MoS2, as a model transition metal dichalcogenide, is viewed as a potential channel material in future nanoelectronic and optoelectronic devices. Minimizing the contact resistance of the metal/MoS2 junction is critical to realizing the potential of MoS2-based devices. In this work, the Schottky barrier height (SBH) and the band structure of high work function Pd metal on MoS2 have been studied by in situ X-ray photoelectron spectroscopy (XPS). The analytical spot diameter of the XPS spectrometer is about 400 MUm, and the XPS signal is proportional to the detection area, so the influence of defect-mediated parallel conduction paths on the SBH does not affect the measurement. The charge redistribution by Pd on MoS2 is detected by XPS characterization, which gives insight into metal contact physics to MoS2 and suggests that interface engineering is necessary to lower the contact resistance for the future generation electronic applications. PMID- 29035027 TI - Heat-Treatment-Induced Compositional Evolution and Magnetic State Transition in Magnetic Chalcogenide Semiconductor GeFeTe without Structural Phase Change. AB - Control of magnetic properties in diluted magnetic semiconductors (DMSs) using external stimuli is a prerequisite for many spintronic applications. Fe-doped chalcogenide semiconductors are promising candidate materials for future spintronic devices since they offer the possibility of magnetic switching by their fast and reversible transition between amorphous and crystalline phases. However, for many proposed applications, magnetic manipulation in crystalline DMSs without a structural change is highly desirable. Thus, the ability to externally control the magnetism of magnetic chalcogenide semiconductors without structural phase change is of significance to enhance their application potential. Here we find that the annealing process could induce an antiferromagnetic (AFM)-ferromagnetic (FM) transition in magnetic chalcogenide semiconductor GeFeTe epilayers without deteriorating the crystal structure. The impact of heat treatment on magnetization in Ge1-xFexTe film depends on Fe concentration. The present data indicate that the AFM-FM transition originates from the evolution of Fe phase composition. This study gives an insight into the correlation between Fe phase composition, electronic structure, and magnetism in GeFeTe thin films. PMID- 29035028 TI - Stress-Mediated Enhancement of Ionic Conductivity in Fast-Ion Conductors. AB - Finding solid-state electrolytes with high ionic conductivity near room temperature is an important prerequisite for developing all-solid-state electrochemical batteries. Here, we investigate the effects of point defects (vacancies) and biaxial stress on the superionic properties of fast-ion conductors (represented by the archetypal compounds CaF2, Li-rich antiperovskite Li3OCl, and AgI) by using classical molecular dynamics and first-principles simulation methods. We find that the critical superionic temperature of all analyzed families of fast-ion conductors can be reduced by several hundreds of degrees through the application of relatively small biaxial stresses (|sigma| <= 1 GPa) on slightly defective samples (cv ~ 1%). In AgI, we show that superionicity can be triggered at room temperature by applying a moderate compressive biaxial stress of ~1 GPa. In this case, we reveal the existence of a sigma-induced order-disorder phase transition involving sizable displacements of all the ions with respect to the equilibrium lattice that occurs prior to the stabilization of the superionic state. In CaF2 and Li3OCl, by contrast, we find that tensile biaxial stress (sigma < 0) favors ionic conductivity as due to an effective increase of the volume available to interstitial ions, which lowers the formation energy of Frenkel pair defects. Our findings provide valuable microscopic insight into the behavior of fast-ion conductors under mechanical constraints, showing that biaxial stress (or, conversely, epitaxial strain) can be used as an effective means to enhance ionic conductivity. PMID- 29035029 TI - Multilayer Ceramic Magnetoelectric Composites with Tailored Interfaces for Enhanced Response. AB - Composite materials consisting of two dissimilar ferroic phases are an excellent alternative to single-phase multiferroics for a wide range of magnetoelectric technologies. In composites with strain-mediated magnetoelectric coupling the response is strongly dependent on the characteristics of the interface between the two mechanically coupled phases. Among the different material approaches considered, cofired ceramic composites offer improved reliability in applications and are more adequate for free-forming and miniaturization. However, their magnetoelectric response often suffers from poor reproducibility, which has been reiteratively associated with the quality of the interfaces with little experimental support. Here, we report an in-depth study of the local material properties across the interfaces of 0.36BiScO3-0.64PbTiO3/NiFe2O4 multilayer ceramic composites, processed by spark plasma sintering of nanocrystalline powders. Tailored microstructures and low residual stress levels were obtained by adjusting the sintering mismatch between the two ferroic phases, which also resulted in fully functional interfaces and enhanced magnetoelectric responses. PMID- 29035030 TI - Effective Trapping of Lithium Polysulfides Using a Functionalized Carbon Nanotube Coated Separator for Lithium-Sulfur Cells with Enhanced Cycling Stability. AB - The critical issues that hinder the practical applications of lithium-sulfur batteries, such as dissolution and migration of lithium polysulfides, poor electronic conductivity of sulfur and its discharge products, and low loading of sulfur, have been addressed by designing a functional separator modified using hydroxyl-functionalized carbon nanotubes (CNTOH). Density functional theory calculations and experimental results demonstrate that the hydroxyl groups in the CNTOH provoked strong interaction with lithium polysulfides and resulted in effective trapping of lithium polysulfides within the sulfur cathode side. The reduction in migration of lithium polysulfides to the lithium anode resulted in enhanced stability of the lithium electrode. The conductive nature of CNTOH also aided to efficiently reutilize the adsorbed reaction intermediates for subsequent cycling. As a result, the lithium-sulfur cell assembled with a functional separator exhibited a high initial discharge capacity of 1056 mAh g-1 (corresponding to an areal capacity of 3.2 mAh cm-2) with a capacity fading rate of 0.11% per cycle over 400 cycles at 0.5 C rate. PMID- 29035031 TI - Proximity Effect Induced Spin Injection in Phosphorene on Magnetic Insulator. AB - Black phosphorus is a promising candidate for future nanoelectronics with a moderate electronic band gap and a high carrier mobility. Introducing the magnetism into black phosphorus will widely expand its application scope and may present a bright prospect in spintronic nanodevices. Here, we report our first principles calculations of spin-polarized electronic structure of monolayer black phosphorus (phosphorene) adsorbed on a magnetic europium oxide (EuO) substrate. Effective spin injection into the phosphorene is realized by means of interaction with the nearby EuO(111) surface, i.e., proximity effect, which results in spin polarized electrons in the 3p orbitals of phosphorene, with the spin polarization at Fermi level beyond 30%, together with an exchange-splitting energy of ~0.184 eV for conduction-band minimum of the adsorbed phosphorene corresponding to an energy region where only one spin channel is conductive. The energy region of these exchange-splitting and spin-polarized band gaps of the adsorbed phosphorene can be effectively modulated by in-plane strain. Intrinsically high and anisotropic carrier mobilities at the conduction-band minimum of the phosphorene also become spin-polarized mainly due to spin polarization of deformation potentials and are not depressed significantly after the adsorption. These extraordinary properties would endow black phosphorus with great potentials in the future spintronic nanodevices. PMID- 29035032 TI - Ultrathin Coaxial Fiber Supercapacitors Achieving High Energy and Power Densities. AB - Fiber-based supercapacitors have attracted significant interests because of their potential applications in wearable electronics. Although much progress has been made in recent years, the energy and power densities, mechanical strength, and flexibility of such devices are still in need of improvement for practical applications. Here, we demonstrate an ultrathin microcoaxial fiber supercapacitor (MUCFSC) with high energy and power densities (2.7 mW h/cm3 and 13 W/cm3), as well as excellent mechanical properties. The prototype with the smallest reported overall diameter (~13 MUm) is fabricated by successive coating of functional layers onto a single micro-carbon-fiber via a scalable process. Combining the simulation results via the electrochemical model, we attribute the high performance to the well-controlled thin coatings that make full use of the electrode materials and minimize the ion transport path between electrodes. Moreover, the MUCFSC features high bending flexibility and large tensile strength (more than 1 GPa), which make it promising as a building block for various flexible energy storage applications. PMID- 29035033 TI - Cross-Linking-Derived Synthesis of Porous CoxNiy/C Nanocomposites for Excellent Electromagnetic Behaviors. AB - The magnet/dielectric composites with tunable structure and composition have drawn much attention because of their particular merits in magnetoelectric properties compared with the sole dielectric or magnetic composites. In addition, porous materials at the nanoscale can satisfy the growing requirements in many industries. Therefore, constructing porous metal alloy/carbon nanocomposites is to be an admirable option. Unfortunately, traditional synthesis methods involve multistep routes and complicated insert-and-remove templates approaches. Here we report a facile process to synthesize CoxNiy/C composites via a spontaneous cross linking reaction and subsequent calcination process, during which multiple processes, including reducing polyvalent metal ions, forming alloy, and encapsulating alloy nanoparticles into porous carbon matrix, are achieved almost simultaneously. By adjusting the feed ratio of Co2+ to Ni2+ ions, controllable composition of CoxNiy/C composites can be gained. It should be noted that the CoxNiy/C composites are demonstrated to be excellent microwave absorbers from every aspect of assessment criteria including reflection loss, effective bandwidth, thickness, and weight of absorber. Our study opens up a promising technique for the synthesis of alloy/carbon composites with porous nanostructures with target functionalities. PMID- 29035034 TI - Ultrasmall MnO Nanoparticles Supported on Nitrogen-Doped Carbon Nanotubes as Efficient Anode Materials for Sodium Ion Batteries. AB - Sodium ion batteries (SIBs) have attracted increasing attentions as promising alternatives to lithium ion batteries (LIBs). Herein, we design and synthesize ultrasmall MnO nanoparticles (~4 nm) supported on nitrogen-doped carbon nanotubes (NDCT@MnO) as promising anode materials of SIBs. It is revealed that the carbonization temperature can greatly influence the structural features and thus the Na-storage behavior of the NDCT@MnO nanocomposites. The synergetic interaction between MnO and NDCT in the NDCT@MnO nanocomposites provides high rate capability and long-term cycling life due to high surface area, electrical conductivity, enhanced diffusion rate of Na+ ions, and prevented agglomeration and high stability of MnO nanoparticles. The resulting SIBs provide a high reversible specific capacity of 709 mAh g-1 at a current density of 0.1 A g-1 and a high capacity of 536 mAh g-1 almost without loss after 250 cycles at 0.2 A g-1. Even at a high current density of 5 A g-1, a capacity of 273 mAh g-1 can be maintained after 3000 cycles. PMID- 29035035 TI - Oxygen Vacancies and Stacking Faults Introduced by Low-Temperature Reduction Improve the Electrochemical Properties of Li2MnO3 Nanobelts as Lithium-Ion Battery Cathodes. AB - Among the Li-rich layered oxides Li2MnO3 has significant theoretical capacity as a cathode material for Li-ion batteries. Pristine Li2MnO3 generally has to be electrochemically activated in the first charge-discharge cycle which causes very low Coulombic efficiency and thus deteriorates its electrochemical properties. In this work, we show that low-temperature reduction can produce a large amount of structural defects such as oxygen vacancies, stacking faults, and orthorhombic LiMnO2 in Li2MnO3. The Rietveld refinement analysis shows that, after a reduction reaction with stearic acid at 340 degrees C for 8 h, pristine Li2MnO3 changes into a Li2MnO3-LiMnO2 (0.71/0.29) composite, and the monoclinic Li2MnO3 changes from Li2.04Mn0.96O3 in the pristine Li2MnO3 (P-Li2MnO3) to Li2.1Mn0.9O2.79 in the reduced Li2MnO3 (R-Li2MnO3), indicating the production of a large amount of oxygen vacancies in the R-Li2MnO3. High-resolution transmission electron microscope images show that a high density of stacking faults is also introduced by the low-temperature reduction. When measured as a cathode material for Li-ion batteries, R-Li2MnO3 shows much better electrochemical properties than P-Li2MnO3. For example, when charged-discharged galvanostatically at 20 mA.g-1 in a voltage window of 2.0-4.8 V, R-Li2MnO3 has Coulombic efficiency of 77.1% in the first charge-discharge cycle, with discharge capacities of 213.8 and 200.5 mA.h.g-1 in the 20th and 30th cycles, respectively. In contrast, under the same charge discharge conditions, P-Li2MnO3 has Coulombic efficiency of 33.6% in the first charge-discharge cycle, with small discharge capacities of 80.5 and 69.8 mA.h.g-1 in the 20th and 30th cycles, respectively. These materials characterizations, and electrochemical measurements show that low-temperature reduction is one of the effective ways to enhance the performances of Li2MnO3 as a cathode material for Li-ion batteries. PMID- 29035036 TI - Nanoprobe Synthesized by Magnetotactic Bacteria, Detecting Fluorescence Variations under Dissociation of Rhodamine B from Magnetosomes following Temperature, pH Changes, or the Application of Radiation. AB - We report a method of fabrication of fluorescent magnetosomes, designated as MCR400, in which 400 MUM of rhodamine B are introduced in the growth medium of AMB-1 magnetotactic bacteria and fluorescent magnetosomes are then extracted from these bacteria. These fluorescent magnetosomes behave differently from most fluorescent nanoprobes, which often lead to fluorescence losses over time due to photobleaching. Indeed, when MCR400 are heated to 30-90 degrees C, brought to an acidic pH, or exposed to radiations, we observed that their fluorescence intensity increased. We attributed this behavior to the dissociation of rhodamine B from the magnetosomes. Interestingly, enhanced fluorescence was also observed in vitro when MCR400 were mixed with either primary macrophages or tumor cells (TC1-GFP or RG2-Cells) or in vivo when MCR400 were introduced in rat glioblastoma. We showed that MCR400 internalize in tumor and immune cells (macrophages) leading to enhanced fluorescence, suggesting that fluorescent magnetosomes could be used during cancer treatments such as magnetic hyperthermia to image cells of interest such as immune or tumor cells. PMID- 29035037 TI - Controlling Superwettability by Microstructure and Surface Energy Manipulation on Three-Dimensional Substrates for Versatile Gravity-Driven Oil/Water Separation. AB - Superwettable materials have gained tremendous attention because of their special wetting abilities. The key to obtaining and tuning superwettability is to precisely control the interfacial microstructures and surface energies of materials. Herein, we propose a novel approach to controlling the superwettability of three-dimensional foams. The surface microstructure was manipulated by the layer-by-layer covalent grafting of multidimensional nanoparticles (e.g., silica, carbon nanotubes, and graphene oxide), and the surface energy was tailored by grafting chemicals with different functional groups. This grafting approach improved the mechanical performance, reduced particle loading, and prevented particle disassociation, thereby increasing the absorption capacity and durability of the functionalized foams. More importantly, superhydrophobic/superoleophilic foams were obtained after heptanol grafting. They showed water contact angles of 153 degrees in air and 158 degrees in oil, an absorption capacity 113 times their weight gain, and a remarkable flux of 32.6 L m-2 s-1 for the separation of oil from water driven by gravity. Polydopamine grafting resulted in superhydrophilic/underwater superoleophobic foams that had an oil contact angle of 152 degrees under water and a high flux of 19.3 L m-2 s 1 for the separation of water from oil. Thus, this study offers not only intelligent materials for versatile oil/water separation but also a profound approach for engineering high-performance superwettable materials. PMID- 29035038 TI - Dynamics and Morphology of Nanoparticle-Linked Polymers Elucidated by Nuclear Magnetic Resonance. AB - Nanoparticles are frequently modified with polymer layers to control their physical and chemical properties, but little is understood about the morphology and dynamics of these polymer layers. We report here an NMR-based investigation of a model polymer-modified nanoparticle, using multiple NMR techniques including 1H NMR, diffusion-ordered spectroscopy (DOSY), total correlation spectroscopy (TOCSY), and T2 relaxometry to characterize the dynamics of the nanoparticle polymer interface. Using 5 nm detonation nanodiamond covalently linked to poly(allylamine) hydrochloride as a model system, we demonstrate the use of NMR to distinguish between free and bound polymer and to characterize the degree to which the segments of the nanoparticle-wrapping polymer are mobile (loops and tails) versus immobile (trains). Our results show that the polymer-wrapped nanoparticle contains a large fraction of highly mobile polymer segments, implying that the polymer extends well into solution away from the nanoparticle surface. Flexible, distal polymer segments are likely to be more accessible to extended objects such as cell membranes, compared with polymer segments that are in close proximity to the nanoparticle surface. Thus, these flexible segments may be particularly important in controlling subsequent interactions of the nanoparticles. While reported here for a model system, the methodology used demonstrates how NMR methods can provide important insights into the structure and dynamics at nanoparticle-polymer interfaces, leading to new perspectives on the behavior and interactions of polymer-functionalized nanoparticles in aqueous systems. PMID- 29035039 TI - Synthesis of Water-Dispersible Mn2+ Functionalized Silicon Nanoparticles under Room Temperature and Atmospheric Pressure for Fluorescence and Magnetic Resonance Dual-Modality Imaging. AB - Silicon nanoparticles (Si NPs) have been widely used in fluorescence imaging. However, rigorous synthesis conditions and the single modality imaging limit the further development of Si NPs in the field of biomedical imaging. Here, we reported a method for synthesizing water-dispersible Mn2+ functionalized Si NPs (Mn-Si NPs) under mild experimental conditions for fluorescence and magnetic resonance dual-modality imaging. The whole synthesis process was completed under room temperature and atmospheric pressure, and no special and expensive equipment was required. The synthetic nanoparticles, with favorable pH stability, NaCl stability, photostability, and low toxicity, emitted green fluorescence (512 nm). At the same time, the nanoparticles also demonstrated excellent magnetic resonance imaging ability. In vitro, their T1-weighted magnetic resonance imaging effect was obvious, and the value of longitudinal relaxation degree r1 reached 4.25 mM-1 s-1. On the basis of their good biocompatibility, Mn-Si NPs were successfully used for the fluorescence imaging as well as magnetic resonance imaging in vivo. PMID- 29035040 TI - Orally Administered Baker's Yeast beta-Glucan Promotes Glucose and Lipid Homeostasis in the Livers of Obesity and Diabetes Model Mice. AB - Baker's yeast glucan (BYG) has been reported to be an anti-diabetic agent. In the work described herein, further study on the effect of orally administered BYG on glucose and lipid homeostasis in the livers of ob/ob mice was performed. It was found that BYG decreased the blood glucose and the hepatic glucose and lipid disorders. Western blotting analysis revealed that BYG up-regulated p-AKT and p AMPK, and down-regulated p-Acc in the liver. Furthermore, RNA-Seq analysis indicated that BYG down-regulated genes responsible for gluconeogenesis (G6pase and Got1), fatty acid biosynthesis (Acly, Acc, Fas, etc.), glycerolipid synthesis (Gpam and Lipin1/2), and cholesterol synthesis (Hmgcr, Fdps, etc.). Additionally, BYG decreased glucose transporters SGLT1 and GLUT2, fat emulsification, and adipogenic genes/proteins in the intestine to decrease glucose and lipid absorption. All these findings demonstrated that BYG is beneficial for regulating glucose and lipid homeostasis in diabetic mice, and thus has potential applications in anti-diabetic foods or drugs. PMID- 29035041 TI - Purification and Characterization of a Novel beta-Cypermethrin-Degrading Aminopeptidase from Pseudomonas aeruginosa GF31. AB - In this study, a novel beta-cypermethrin-degrading enzyme was isolated and purified by 32.8 fold from the extracellular cell-free filtrate of Pseudomonas aeruginosa GF31with the protein recovery of 26.6%. The molecular mass of the enzyme was determined to be 53 kDa. The optimum temperature for the activity was surprisingly 60 degrees C, and moreover, the purified enzyme showed a good pH stability, maintaining over 85% of its initial activity in the pH 5.0-9.0 range. Most of the common metal ions exhibited little influence on the activity except for Hg2+, Ag+, and Cu2+. After the complete gene sequence of the degrading enzyme was obtained by subcloning, sequence analyses as well as enzymatic properties demonstrated that the islolated enzyme should be an aminopeptidase. This is the first reported aminopeptidase for pyrethroid hydrolase, providing new potential enzyme resources for the degradation of this type of pesticide. PMID- 29035042 TI - nmrML: A Community Supported Open Data Standard for the Description, Storage, and Exchange of NMR Data. AB - NMR is a widely used analytical technique with a growing number of repositories available. As a result, demands for a vendor-agnostic, open data format for long term archiving of NMR data have emerged with the aim to ease and encourage sharing, comparison, and reuse of NMR data. Here we present nmrML, an open XML based exchange and storage format for NMR spectral data. The nmrML format is intended to be fully compatible with existing NMR data for chemical, biochemical, and metabolomics experiments. nmrML can capture raw NMR data, spectral data acquisition parameters, and where available spectral metadata, such as chemical structures associated with spectral assignments. The nmrML format is compatible with pure-compound NMR data for reference spectral libraries as well as NMR data from complex biomixtures, i.e., metabolomics experiments. To facilitate format conversions, we provide nmrML converters for Bruker, JEOL and Agilent/Varian vendor formats. In addition, easy-to-use Web-based spectral viewing, processing, and spectral assignment tools that read and write nmrML have been developed. Software libraries and Web services for data validation are available for tool developers and end-users. The nmrML format has already been adopted for capturing and disseminating NMR data for small molecules by several open source data processing tools and metabolomics reference spectral libraries, e.g., serving as storage format for the MetaboLights data repository. The nmrML open access data standard has been endorsed by the Metabolomics Standards Initiative (MSI), and we here encourage user participation and feedback to increase usability and make it a successful standard. PMID- 29035043 TI - Remarkable Reactivity Differences between Glucosides with Identical Leaving Groups. AB - Two isomeric aryl 2-deoxy-2-fluoro-beta-glucosides react with a beta-glucosidase at rates differing by 106-fold, despite the fact that they release the same aromatic aglycone. In contrast, the equivalent glucoside substrates react with essentially identical rate constants. Insight into the source of these surprising rate differences was obtained through a comprehensive study of the nonenzymatic (spontaneous) hydrolysis of these same substrates, wherein an approximate 105 fold difference in rates was measured, clarifying that the differences were inherent rather than being due to specific interactions with the enzyme. The possibility that an alternate nucleophilic aryl substitution mechanism was responsible for the rapid reaction of the faster substrate was excluded through 18O-labeling studies. Further exploration of the origins of these rate differences involved analysis of X-ray crystal structures as well as quantum chemical calculations, which surprisingly revealed that ground state destabilization and transition state stabilizing effects contribute almost equally to the observed reactivity differences. These studies highlight the dangers of using simple reference equilibria such as pKa values as measures of leaving group ability. PMID- 29035045 TI - Energy and Biocides Storage Compounds: Synthesis and Characterization of Energetic Bridged Bis(triiodoazoles). AB - Energetic bridged triiodopyrazoles and triiodoimidazoles were designed and synthsized by reacting potassium triiodopyrazolate or triiodoimidazolate with corresponding dichloro compounds. All compounds were fully characterized by 1H and 13C NMR spectroscopy, IR spectroscopy, and elemental analyses. The structure of compound 1 was further confirmed by single-crystal X-ray diffraction. All of the compounds exhibit good thermal stability with decomposition temperatures between 199 and 270 degrees C and high densities ranging from 2.804 to 3.358 g/cm3. The detonation performances and the detonation products were calculated by CHEETAH 7. Compound 3 (Dv = 4765 m s-1; P = 17.9 GPa) and compound 7 (Dv = 4841 m s-1; P = 18.5 GPa) show comparable detonation pressure to TNT, and high iodine content makes them promising as energy and biocides storage compounds. PMID- 29035044 TI - Nicotine Alters the Gut Microbiome and Metabolites of Gut-Brain Interactions in a Sex-Specific Manner. AB - As the primary active substance in tobacco, nicotine affects the activity of the central nervous system, and its effects are sex-dependent. There are complex interactions between the gut and brain, and the gut microbiome can influence neuronal activity and host behavior, with diverse chemical signaling being involved. However, it is unclear whether nicotine can affect the normal gut microbiome and associated chemical signaling of the gut-brain axis. Sex is an important factor that shapes the gut microbiome, but the role of sex in the interaction among nicotine, gut bacteria, and related metabolites remains unknown. In this study, we applied high-throughput sequencing and gas chromatography-mass spectrometry (GC-MS) to explore how nicotine exposure affects the gut microbiome and its metabolism in female and male C57BL/6J mice, with a focus on the chemical signaling involved in gut-brain interactions. 16S sequencing results indicated that the community composition of the gut microbiome was differentially perturbed by nicotine in females and males. Differential alterations of bacterial carbohydrate metabolic pathways are consistent with lower body weight gain in nicotine-treated males. Oxidative stress response and DNA repair genes were also specifically enriched in the nicotine-treated male gut microbiome. The fecal metabolome indicated that multiple neurotransmitters, such as glutamate, gamma-aminobutyric acid (GABA), and glycine, were differentially altered in female and male mice. Some neuroactive metabolites, including leucine and uric acid, were also changed. This study demonstrates a sex-dependent effect of nicotine on gut microbiome community composition, functional bacterial genes, and the fecal metabolome. PMID- 29035046 TI - Viscosity of Water Interfaces with Hydrophobic Nanopores: Application to Water Flow in Carbon Nanotubes. AB - The nanoconfinement of water results in changes in water properties and nontraditional water flow behaviors. The determination of the interfacial interactions between water and hydrophobic surfaces helps in understanding many of the nontraditional behaviors of nanoconfined water. In this study, an approach for the identification of the viscosity of water interfaces with hydrophobic nanopores as a function of the nanopore diameter and water-solid (nanopore) interactions is proposed. In this approach, water in a hydrophobic nanopore is represented as a double-phase water with two distinct viscosities: water interface and water core. First, the slip velocity to pressure gradient ratio of water flow in hydrophobic nanopores is obtained via molecular dynamics (MD) simulations. Then the water interface viscosity is determined via a pressure gradient-based bilayer water flow model. Moreover, the core viscosity and the effective viscosity of water flow in hydrophobic nanopores are derived as functions of the nanopore diameter and water-solid interactions. This approach is utilized to report the interface viscosity, core viscosity, and effective viscosity of water flow in carbon nanotubes (CNTs) as functions of the CNT diameter. Moreover, using the proposed approach, the transition from MD to continuum mechanics is revealed where the bulk water properties are recovered for large CNTs. PMID- 29035047 TI - Electrocatalytic Water Oxidation by a Water-Soluble Copper(II) Complex with a Copper-Bound Carbonate Group Acting as a Potential Proton Shuttle. AB - Water-soluble copper(II) complexes of the dianionic tridentate pincer ligand N,N' 2,6-dimethylphenyl-2,6-pyridinedicarboxamidate (L) are catalysts for water oxidation. In [L-CuII-DMF] (1, DMF = dimethylformamide) and [L-CuII-OAc]- (2, OAc = acetate), ligand L binds CuII through three N atoms, which define an equatorial plane. The fourth coordination site of the equatorial plane is occupied by DMF in 1 and by OAc- in 2. These two complexes can electrocatalyze water oxidation to evolve O2 in 0.1 M pH 10 carbonate buffer. Spectroscopic, titration, and crystallographic studies show that both 1 and 2 undergo ligand exchange when they are dissolved in carbonate buffer to give [L-CuII-CO3H]- (3). Complex 3 has a similar structure as those of 1 and 2 except for having a carbonate group at the fourth equatorial position. A catalytic cycle for water oxidation by 3 is proposed based on experimental and theoretical results. The two-electron oxidized form of 3 is the catalytically active species for water oxidation. Importantly, for these two oxidation events, the calculated potential values of Ep,a = 1.01 and 1.59 V vs normal hydrogen electrode (NHE) agree well with the experimental values of Ep,a = 0.93 and 1.51 V vs NHE in pH 10 carbonate buffer. The potential difference between the two oxidation events is 0.58 V for both experimental and calculated results. With computational evidence, this Cu-bound carbonate group may act as a proton shuttle to remove protons for water activation, a key role resembling intramolecular bases as reported previously. PMID- 29035048 TI - Structural Sequencing of Oligopeptides Aided by 1H Iterative Full-Spin Analysis. AB - This report describes an approach using 1H NMR iterative full-spin analysis (HiFSA) to extract definitive structural information on unknown peptides from 1D 1H NMR data. By comparing the experimental data and HiFSA fingerprint of a known analogue, it is possible to isolate the characteristic 1H subspectrum of the different amino acids and, thus, elucidate the structure of the peptide. To illustrate this methodology, a comprehensive analysis of five new anti Mycobacterium tuberculosis peptides (2-6), all analogues of ecumicin (1), was carried out. The method was validated by demonstrating congruence of the HiFSA based structures with all available data, including MS and 2D NMR. The highly reproducible HiFSA fingerprints of the new ~1600 amu peptides were generated in this process. Besides oligo-peptides, the HiFSA sequencing approach could be extended to all oligomeric compounds consisting of chains of monomers lacking H-H spin-spin coupling across the moieties. HiFSA sequencing is capable of differentiating complex oligomers that exhibit minor structural differences such as shifted hydoxyl or methyl groups. Because it employs the basic and most sensitive 1D 1H NMR experiment, HiFSA sequencing enables the exploration of peptide analogues up to at least 2000 amu, even with basic contemporary spectrometers and when only sub-milligram amounts of isolates are available. PMID- 29035049 TI - Exceptionally High Proton and Lithium Cation Gas-Phase Basicity of the Anti Diabetic Drug Metformin. AB - Substituted biguanides are known for their biological effect, and a few of them are used as drugs, the most prominent example being metformin (1,1 dimethylbiguanide, IUPAC name: N,N-dimethylimidodicarbonimidic diamide). Because of the presence of hydrogen atoms at the amino groups, biguanides exhibit a multiple tautomerism. This aspect of their structures was examined in detail for unsubstituted biguanide and metformin in the gas phase. At the density functional theory (DFT) level {essentially B3LYP/6-311+G(d,p)}, the most stable structures correspond to the conjugated, push-pull, system (NR2)(NH2)C?N-C(?NH)NH2 (R = H, CH3), further stabilized by an internal hydrogen bond. The structural and energetic aspects of protonation and lithium cation adduct formation of biguanide and metformin was examined at the same level of theory. The gas-phase protonation energetics reveal that the more stable tautomer is protonated at the terminal imino C?NH site, still with an internal hydrogen bond maintaining the structure of the neutral system. The calculated proton affinity and gas-phase basicity of the two molecules reach the domain of superbasicity. By contrast, the lithium cation prefers to bind the less stable, not fully conjugated, tautomer (NR2)C(?NH)-NH-C(?NH)NH2 of biguanides, in which the two C?NH groups are separated by NH. This less stable form of biguanides binds Li+ as a bidentate ligand, in agreement with what was reported in the literature for other metal cations in the solid phase. The quantitative assessment of resonance in biguanide, in metformin and in their protonated forms, using the HOMED and HOMA indices, reveals an increase in electron delocalization upon protonation. On the contrary, the most stable lithium cation adducts are less conjugated than the stable neutral biguanides, because the metal cation is better coordinated by the not-fully conjugated bidentate tautomer. PMID- 29035050 TI - Cu(I) Coordination Polymers as the Green Heterogeneous Catalysts for Direct C-H Bonds Activation of Arylalkanes to Ketones in Water with Spatial Confinement Effect. AB - To develop coordination polymers (CPs) as catalysts to selectively catalyze the reaction of C-H bond activation of arylalkanes to their homologous ketones, three new Cu(I)-based coordination polymers (CuI-CPs) [CuI(aas-TPB)]n (1), [CuBr(ass TPB)CH3CN]n (2), and {[Cu(ass-TPB)]Cl}n (3) (TPB = N,N,N-tris(3-pyridinyl)-1,3,5 benzenetricarboxamide) were synthesized. Structural variations from a herringbone fashion one-dimensional framework of 1 to a two-dimensional framework of 2 containing a 48-membered macrocycle and a cationic three-dimensional framework of 3 filled with Cl- anions were observed arising from the different halogen ions (I , Br-, and Cl-). 1-3 were used as the green heterogeneous catalysts to catalyze direct C-H bond activation reactions of arylalkanes to ketones under mild reaction conditions with water as solvent. Handy product separation, convenient reaction procedures, and recyclability of these catalysts make the catalytic system fascinating. Moreover, the CuI-CPs performed the reaction with high regioselectivity due to the unique spatial confinement effect of CPs. PMID- 29035051 TI - Integrating Carbamylation and Ultraviolet Photodissociation Mass Spectrometry for Middle-Down Proteomics. AB - The most popular bottom-up proteomics workflow uses trypsin to enzymatically cleave proteins C-terminal to lysine and arginine residues prior to LCMS/MS analysis of the resulting peptides. The high frequency of these residues generates short peptides, some of which are too small or uninformative for optimal analysis and which potentially contribute to gaps in sequence coverage of proteins. Analysis of larger peptides, termed "middle-down", has the potential to span greater sections of protein sequences if the larger peptides are adequately characterized based on their fragmentation patterns. We describe a strategy to generate larger peptides in conjunction with successful characterization by ultraviolet photodissociation (UVPD) for MS/MS analysis in a middle-down workflow, as demonstrated for proteins from E. coli lysates. The larger peptides are produced via modification of lysine residues by carbamylation of proteins. Carbamylation of proteins followed by tryptic digestion produced peptides similar to those expected from Arg-C proteolysis, yet with fewer missed and nonspecific cleavages. UVPD provides excellent sequence coverage of the larger peptides that are often less well characterized by traditional collision-based activation methods. PMID- 29035052 TI - Filling the Missing Links of M3n Prototype 3d-4f and 4f Cyclic Coordination Cages: Syntheses, Structures, and Magnetic Properties of the Ni10Ln5 and the Er3n Wheels. AB - In this paper, we proposed a number rule for 3d-4f and 4f cyclic coordination cages (CCCs); that is, CCCs consisting of vertex-sharing M4(MU3-OH)4 (M = 3d transition metal or 4f lanthanide ions) units should have 3 * n metal centers (abbreviated M3n), where n represents the number of the M4(MU3-OH)4 subunits. Under this number rule we reasoned that some species of CCCs, for example, the pentadecanuclear 3d-4f wheel and the pure 4f wheels with 9 or 18 centers, should practically have existed. However, there are no such complexes reported in the literature. To realize such CCCs we employed a mixed-ligand approach, that is, to simultaneously use the primary and the ancillary ligands for syntheses. This approach successfully leads to the isolation of two families of CCCs, namely, the Ni10Ln5 (Ln = Gd and Y) mixed-metal wheels and the Er3n (n = 4, 5, and 6) pure 4f metal wheels. These two families of CCCs unambiguously fill the missing links of the M3n prototype CCCs. Moreover, dominated ferromagnetic interaction indicates high ground-spin state for the Gd5Ni10 wheel. The ferromagnetic interactions between the nickel centers are verified using the diamagnetic Y(III) analogue, which reveals an averaged coupling constant (J = 2.7 cm-1), while accompanied by a large negative zero-field splitting parameter (D = -6.1 cm-1) for single Ni(II) ions. Interestingly, the Y(III)-diluted Er12 wheel shows slow magnetic relaxation behavior, presumably indicating the magnetically anisotropic nature of the erbium(III) ions. PMID- 29035053 TI - Designed Bifunctional Phosphine Ligand-Enabled Gold-Catalyzed Isomerizations of Ynamides and Allenamides: Stereoselective and Regioselective Formation of 1-Amido 1,3-dienes. AB - By using designed biphenyl-2-ylphosphines functionalized with a remote basic groups as ligands, N-alkynyl-o-nosylamides are directly converted to (1E,3E)-1 amido-1,3-dienes with excellent diastereoselectivities under gold catalysis. With allenamides as substrates, the gold-catalyzed isomerizations are high yielding and applicable to a broad substrate scope including various nitrogen protecting groups and exhibit unprecedented (3E)-selectivities for the distal C-C double bond and good regioselectivities. Combining this gold catalysis with one-pot Diels-Alder reactions leads to rapid assembly of valuable bicyclic compounds. PMID- 29035054 TI - Quantum Yields of Nitrite (NO2-) from the Photolysis of Nitrate (NO3-) in Ice at 313 nm. AB - Photochemical reactions of nitrate in snow release reactive nitrogen species via two channels, which produce (1) nitrogen dioxide (NO2) and hydroxyl radical (*OH) and (2) nitrite (NO2-) and oxygen atom (O(3P)). Quantum yields (Phi) for these channels are generally well characterized, except for channel 2 in ice. In this study, we quantify Phi(NO2-) in water ices and examine the impacts of pH and organic scavengers of *OH. Compared to solution results, we find that nitrite quantum yields in ice are more sensitive to pH and that *OH scavengers are less effective, although 2-propanol appears to work well. The temperature dependence ( 30 to 25 degrees C) of Phi(NO2-) in samples containing 2-propanol is well described by a single regression line, ln(Phi(NO2-)) = -(1330 +/- 100)(1/T(K)) + (0.09 +/- 0.39). At -10 degrees C, the resulting quantum yield is 4.6 times larger than the previously reported (and recommended) value without an *OH scavenger. Although some reports suggest nitrite is a minor product from nitrate photolysis, based on our current and past results, rates of photoproduction of NO2- and NO2 are similar at room temperature, while NO2- production dominates at lower temperatures in solution and ice. PMID- 29035055 TI - Atmospheric Simulation Chamber Studies of the Gas-Phase Photolysis of Pyruvic Acid. AB - Pyruvic acid is an atmospherically abundant alpha-keto-acid that degrades efficiently from the troposphere via gas-phase photolysis. To explore conditions relevant to the environment, 2-12 ppm pyruvic acid is irradiated by a solar simulator in the environmental simulation chamber, CESAM. The combination of the long path length available in the chamber and its low surface area to volume ratio allows us to quantitatively examine the quantum yield and photochemical products of pyruvic acid. Such details are new to the literature for the low initial concentrations of pyruvic acid employed here. We determined photolysis quantum yields of phiobsN2 = 0.84 +/- 0.1 in nitrogen and phiobsAir = 3.2 +/- 0.5 in air, which are higher than those reported by previous studies that used higher partial pressures of pyruvic acid. The quantum yield greater than unity in air is due to secondary chemistry, driven by O2, that emerges under the conditions in these experiments. The low concentration of pyruvic acid and the resulting oxygen effect also alter the product distribution such that acetic acid, rather than acetaldehyde, is the primary product in air. These results indicate that tropospheric pyruvic acid may degrade in part via photoinduced mechanisms that are different than previously expected. PMID- 29035056 TI - Coupling Reaction of Cu-Based Carbene and Nitroso Radical: A Tandem Reaction To Construct Isoxazolines. AB - In this letter, an unprecedented cross-coupling reaction between copper carbene and nitroso radical has been developed. This radical-carbene coupling reaction (RCC reaction) offers a novel approach for the preparation of various isoxazolines, which features the construction of C-C, C-O, and C?N bonds in a one pot process. The synthetic utility of our method is further enhanced by its mild reaction conditions, wide substrate scope, and simple procedures. PMID- 29035057 TI - Freeze-Dried Sulfur-Graphene Oxide-Carbon Nanotube Nanocomposite for High Sulfur Loading Lithium/Sulfur Cells. AB - The ambient-temperature rechargeable lithium/sulfur (Li/S) cell is a strong candidate for the beyond lithium ion cell since significant progress on developing advanced sulfur electrodes with high sulfur loading has been made. Here we report on a new sulfur electrode active material consisting of a cetyltrimethylammonium bromide-modified sulfur-graphene oxide-carbon nanotube (S GO-CTA-CNT) nanocomposite prepared by freeze-drying. We show the real-time formation of nanocrystalline lithium sulfide (Li2S) at the interface between the S-GO-CTA-CNT nanocomposite and the liquid electrolyte by in situ TEM observation of the reaction. The combination of GO and CNT helps to maintain the structural integrity of the S-GO-CTA-CNT nanocomposite during lithiation/delithiation. A high S loading (11.1 mgS/cm2, 75% S) S-GO-CTA-CNT electrode was successfully prepared using a three-dimensional structured Al foam as a substrate and showed good S utilization (1128 mAh/g S corresponding to 12.5 mAh/cm2), even with a very low electrolyte to sulfur weight ratio of 4. Moreover, it was demonstrated that the ionic liquid in the electrolyte improves the Coulombic efficiency and stabilizes the morphology of the Li metal anode. PMID- 29035058 TI - Singlet Fission and Excimer Formation in Disordered Solids of Alkyl-Substituted 1,3-Diphenylisobenzofurans. AB - We describe the preparation and excited state dynamics of three alkyl derivatives of 1,3-diphenylisobenzofuran (1) in both solutions and thin films. The substitutions are intended to disrupt the slip-stacked packing observed in crystals of 1 while maintaining the favorable energies of singlet and triplet for singlet fission (SF). All substitutions result in films that are largely amorphous as judged by the absence of strong X-ray diffraction peaks. The films of 1 carrying a methyl in the para position of one phenyl ring undergo SF relatively efficiently (>=75% triplet yield, PhiT) but more slowly than thin films of 1. When the methyl is replaced with a t-butyl, kinetic competition in the excited state favors excimer formation rather than SF (PhiT = 55%). When t-Bu groups are placed in both meta positions of the phenyl substituent, SF is slowed further and PhiT = 35%. PMID- 29035059 TI - ZnO Nanomembrane/Expanded Graphite Composite Synthesized by Atomic Layer Deposition as Binder-Free Anode for Lithium Ion Batteries. AB - A zinc oxide (ZnO)/expanded graphite (EG) composite was successfully synthesized by using atomic layer deposition with dimethyl zinc as the zinc source and deionized water as the oxidant source. In the composite structure, EG provides a conductive channel and mechanical support to ZnO nanomembranes, which effectively avoids the electrode pulverization caused by the volume change of ZnO. The anodes made from the flexible composite films without using binder, conductive agent, and current collector show high stable capacities especially for that with a moderate ZnO concentration. The highest capacity stayed at 438 mAh g-1 at a current rate of 200 mA g-1 after 500 cycles. The good performance is considered to be due to the co-effects of the high capacity of ZnO and the support of the EG framework. Such composite structures may have great potential in low-cost and flexible batteries. PMID- 29035060 TI - A Computational Study Investigating the Energetics and Kinetics of the HNCO + (CH3)2NH Reaction Catalyzed by a Single Water Molecule. AB - High-level ab initio calculations are used to explore the energetics and kinetics for the formation of 1,1-dimethyl urea via the reaction of isocyanic acid (HNCO) with dimethyl amine (DMA) catalyzed by a single water molecule. Compared to the uncatalyzed HNCO + DMA reaction, the presence of a water molecule lowers the reaction barrier, defined here as the energy difference between the separated HNCO + DMA + H2O reactants and the transition state (TS), by ~26 kcal/mol. In addition to the HNCO + DMA + H2O reaction, the energetics of the analogous reactions involving, respectively, ammonia and methyl amine were also investigated. Comparing the barriers for these three amine addition reactions, which can be represented as HNCO + R-NH-R' + H2O with R and R' being either -CH3 or -H, we find that the reaction barrier decreases with the degree of methylation on the amine nitrogen atom. The effective rate constants for the bimolecular reaction pathways HNCO..H2O + DMA and HNCO..DMA + H2O were calculated using canonical variational TS theory coupled with both small curvature and zero curvature tunneling corrections over the 200-300 K temperature range. For comparison, we also calculated the rate constant for the HNCO + OH reaction. Our results suggest that the HNCO + H2O + DMA reaction can make a non-negligible contribution to the gas-phase removal of atmospheric HNCO under conditions where the HNCO and water concentrations are high and the temperature is low. PMID- 29035061 TI - Terahertz Nanofocusing with Cantilevered Terahertz-Resonant Antenna Tips. AB - We developed THz-resonant scanning probe tips, yielding strongly enhanced and nanoscale confined THz near fields at their tip apex. The tips with length in the order of the THz wavelength (lambda = 96.5 MUm) were fabricated by focused ion beam (FIB) machining and attached to standard atomic force microscopy (AFM) cantilevers. Measurements of the near-field intensity at the very tip apex (25 nm radius) as a function of tip length, via graphene-based (thermoelectric) near field detection, indicate their first and second order geometrical antenna resonances for tip length of 33 and 78 MUm, respectively. On resonance, we find that the near-field intensity is enhanced by one order of magnitude compared to tips of 17 MUm length (standard AFM tip length), which is corroborated by numerical simulations that further predict remarkable intensity enhancements of about 107 relative to the incident field. Because of the strong field enhancement and standard AFM operation of our tips, we envision manifold and straightforward future application in scattering-type THz near-field nanoscopy and THz photocurrent nanoimaging, nanoscale nonlinear THz imaging, or nanoscale control and manipulation of matter employing ultrastrong and ultrashort THz pulses. PMID- 29035062 TI - Determination of the Complete Spin Density Distribution in 13C-Labeled Protein Bound Radical Intermediates Using Advanced 2D Electron Paramagnetic Resonance Spectroscopy and Density Functional Theory. AB - Determining the complete electron spin density distribution for protein-bound radicals, even with advanced pulsed electron paramagnetic resonance (EPR) methods, is a formidable task. Here we present a strategy to overcome this problem combining multifrequency HYSCORE and ENDOR measurements on site specifically 13C-labeled samples with DFT calculations on model systems. As a demonstration of this approach, pulsed EPR experiments are performed on the primary QA and secondary QB ubisemiquinones of the photosynthetic reaction center from Rhodobacter sphaeroides 13C-labeled at the ring and tail positions. Despite the large number of nuclei interacting with the unpaired electron in these samples, two-dimensional X- and Q-band HYSCORE and orientation selective Q-band ENDOR resolve and allow for a characterization of the eight expected 13C resonances from significantly different hyperfine tensors for both semiquinones. From these results we construct, for the first time, the most complete experimentally determined maps of the s- and ppi-orbital spin density distributions for any protein organic cofactor radical to date. This work lays a foundation for understanding the relationship between the electronic structure of semiquinones and their functional properties, and introduces new techniques for mapping out the spin density distribution that are readily applicable to other systems. PMID- 29035063 TI - Religious anti-gay prejudice as a predictor of mental health, abuse, and substance use. AB - Anti-gay, or homonegative, prejudice is generally considered harmful to the wellbeing of sexual minority individuals. However, the origins or nature of such prejudice may vary. Despite a sizable body of literature suggesting homonegative prejudice is frequently religious-based, the psychological impact of exposure to religious anti-gay prejudice remains largely undetermined. Addressing this research gap, the authors examined whether opposition to same-sex sexuality on religious grounds predicted detrimental outcomes among same- and both-sex attracted individuals, as well as their heterosexual counterparts. A nationwide U.S. sample of 1600 individuals-recruited using contemporary online crowd sourcing techniques designed to limit selection bias-completed a novel inventory assessing interpersonal exposure to religious (as well as nonreligious) homonegative disapproval. Outcome variables assessed included a number of clinically relevant measures spanning general mental health, social support, suicidality, abuse, and substance use. Analyses revealed that greater exposure to religious anti-gay prejudice predicted higher levels of anxiety, stress, and shame; more instances of physical and verbal abuse; and more problematic alcohol use. Furthermore, while sexual minority individuals tended to fare more poorly than their heterosexual counterparts on almost every outcome measure assessed, homonegative prejudice predicted poorer outcomes among all respondents regardless of their sexual orientation or religious identification. Hence, results are among the first to demonstrate that anti-gay religious exposure is associated with substantial threats to wellbeing, and that such effects may be observed beyond religious sexual minorities. Overall, findings imply that homonegative religious social conditions may be of broader health and mental health concern than is conventionally recognized. (PsycINFO Database Record PMID- 29035065 TI - Serial decision-making in monkeys during an oculomotor task. AB - Much of everyday behavior involves serial decision-making, in which the outcome of 1 choice affects another. An example is setting rules for oneself: choosing a behavioral rule guides appropriate choices in the future. How the brain links decisions across time is poorly understood. Neural mechanisms could be studied in monkeys, as it is known that they can select and use behavioral rules, but existing psychophysical paradigms are poorly suited for the constraints of neurophysiology. Therefore, we designed a streamlined task that requires sequential, linked decisions, and trained 2 rhesus monkeys (Macaca mulatta) to perform it. The task features trial-by-trial consistency, visual stimuli, and eye movement responses to optimize it for simultaneous electrophysiological inquiry. In the first stage of each trial, the monkeys selected a rule or a rule was provided to them. In the second stage, they used the rule to discriminate between 2 test stimuli. Our hypotheses were that they could use self-selected rules and could deliberately select rules based on reinforcement history. We found that the monkeys were as proficient at using self-selected rules as instructed rules. Their preferences for selecting rules correlated with their performance in using them, consistent with systematic, rather than random, strategies for accomplishing the task. The results confirm and extend prior findings on rule selection in monkeys and establish a viable, experimentally flexible paradigm for studying the neural basis of serial decision-making. (PsycINFO Database Record PMID- 29035064 TI - Two subtypes of psychopathic criminals differ in negative affect and history of childhood abuse. AB - OBJECTIVE: Specification of the etiological mechanisms underlying psychopathy is a key step in developing more effective methods for preventing and remediating the callous and impulsive behavior that characterizes the disorder. Theoretical conceptualizations of psychopathic subtypes propose that a primary variant largely stems from impoverished affect, whereas a secondary variant is hypothesized to develop subsequent to adverse environmental experiences (e.g., childhood maltreatment). However, there has been a dearth of research demonstrating that psychopathic subtypes actually differ in terms of experienced childhood maltreatment in an adult offender population. METHOD: The current study employed model-based cluster analysis (MBCA) in a sample of incarcerated, psychopathic males (n = 110) to identify subtypes of psychopathic offenders based on a broad personality assessment. RESULTS: Two subgroups emerged: 1 with high levels of negative affect (high-NA) and 1 with low levels of negative affect (low NA). The high-NA subgroup scored significantly higher on measures of childhood maltreatment. CONCLUSION: These results provide support for theoretical conceptualizations of psychopathic subtypes, suggesting that psychopathic offenders with high levels of negative affect experience a greater degree of childhood maltreatment. (PsycINFO Database Record PMID- 29035066 TI - Multiple self-reported sleep measures are differentially associated with cognitive performance in community-dwelling nondemented elderly. AB - OBJECTIVE: To examine associations between daytime and insomnia-related sleep problems with different domains of cognitive functioning and determine whether subclinical depressive symptoms and age moderate these associations. METHOD: A total of 903 cognitively healthy older adults enrolled in a longitudinal aging study completed the UDS neuropsychological battery (measuring attention, executive functioning, episodic memory, language and processing speed). Subclinical depressive symptoms were also assessed and self-reported measures of sleep were administered. RESULTS: Hierarchical multiple regression analyses separately assessing the effects of daytime and insomnia-related sleep problems on cognition identified relationships between both daytime and insomnia-related sleep problems with a composite measure of executive functioning; however, the former was related more to speed of processing and the latter to higher order executive abilities. Age moderated the relationship between insomnia severity and executive functioning, and subclinical depressive symptoms moderated the relationship between insomnia-related sleep problems and performance on measures of attention. CONCLUSIONS: Among older adults, sleep problems have a deleterious effect on executive functioning regardless of whether they occur during the day or nighttime; however, age and subclinical depressive symptoms differentially impact relationships between sleep variables and cognitive domains. (PsycINFO Database Record PMID- 29035067 TI - Executive functioning in relation to coping in mild versus moderate-severe traumatic brain injury. AB - OBJECTIVE: To examine associations between executive functioning (EF) and coping styles, separately for mild and moderate-severe traumatic brain injury (TBI) in the chronic phase postinjury. METHOD: Patients with mild (n = 47) and moderate severe TBI (n = 59) were included, in addition to healthy controls (HCs; n = 51). Assessment consisted of EF tests (Trail Making Test, Zoo Map Test, Controlled Oral Word Association Test) and questionnaires examining EF (Dysexecutive Questionnaire) and coping styles (Utrecht Coping List). RESULTS: Moderate-severe TBI patients showed significant more EF deficits, lower active coping and higher passive coping than mild TBI patients and HCs, whereas mild TBI patients did not differ from HCs. In the moderate-severe TBI group, a higher number of self reported EF problems was related to lower levels of active coping, r = -.43, p < .01 and higher levels of passive coping, r = .58, p < .001, with proxy-reports relating to lower levels of active coping, r = -.33, p < .05. For mild TBI, a higher amount of self-reported EF problems was related to lower levels of active coping, r = -.38, p < .05 and higher levels of passive coping, r = .55, p < .001, with proxy-reports relating to higher levels of passive coping, r = .39, p < .05. Except for mental flexibility, EF performances were not associated with coping. CONCLUSIONS: This study shows strong associations between reported EF problems in daily life and coping styles. For moderate-severe TBI, proxy-reports may reflect EF impairments that complicate active problem-solving. However, reported EF problems by mild and moderate-severe TBI patients are also likely to reflect a psychological distress related to the way patients are inclined to deal with stressing situations that put a demand on their executive abilities. (PsycINFO Database Record PMID- 29035068 TI - Effects of animal-assisted therapy on concentration and attention span in patients with acquired brain injury: A randomized controlled trial. AB - OBJECTIVE: Previous studies have reported that brain-injured patients frequently suffer from cognitive impairments such as attention and concentration deficits. Numerous rehabilitation clinics offer animal-assisted therapy (AAT) to address these difficulties. The authors' aim was to investigate the immediate effects of AAT on the concentration and attention span of brain-injured patients. METHOD: Nineteen patients with acquired brain injury were included in a randomized, controlled, within-subject trial. The patients alternately received 12 standard therapy sessions (speech therapy, physiotherapy, occupational therapy) and 12 paralleled AAT sessions with comparable content. A total of 429 therapy sessions was analyzed consisting of 214 AAT and 215 control sessions. Attention span and instances of distraction were assessed via video coding in Noldus Observer. The Mehrdimensionaler Befindlichkeitsbogen ([Multidimensional Affect Rating Scale] MDBF questionnaire; Steyer, Schwenkmezger, Notz, & Eid, 1997) was used to measure the patient's self-rated alertness. Concentration was assessed through Visual Analogue Scale (VAS) via self-assessment and therapist's ratings. RESULTS: The patients' attention span did not differ whether an animal was present or not. However, patients displayed more instances of distraction during AAT. Moreover, patients rated themselves more concentrated and alert during AAT sessions. Further, therapists' evaluation of patients' concentration indicated that patients were more concentrated in AAT compared with the control condition. CONCLUSIONS: Although the patients displayed more instances of distraction while in the presence of an animal, it did not have a negative impact on their attention span. In addition, patients reported to be more alert and concentrated when an animal was present. Future studies should examine other attentional processes such as divided attention and include neurobiological correlates of attention. (PsycINFO Database Record PMID- 29035069 TI - Emotion recognition in Parkinson's disease: Static and dynamic factors. AB - OBJECTIVE: The authors tested the hypothesis that Parkinson's disease (PD) participants would perform better in an emotion recognition task with dynamic (video) stimuli compared to a task using only static (photograph) stimuli and compared performances on both tasks to healthy control participants. METHOD: In a within-subjects study, 21 PD participants and 20 age-matched healthy controls performed both static and dynamic emotion recognition tasks. The authors used a 2 way analysis of variance (controlling for individual participant variance) to determine the effect of group (PD, control) on emotion recognition performance in static and dynamic facial recognition tasks. RESULTS: Groups did not significantly differ in their performances on the static and dynamic tasks; however, the trend was suggestive that PD participants performed worse than controls. CONCLUSIONS: PD participants may have subtle emotion recognition deficits that are not ameliorated by the addition of contextual cues, similar to those found in everyday scenarios. Consistent with previous literature, the results suggest that PD participants may have underlying emotion recognition deficits, which may impact their social functioning. (PsycINFO Database Record PMID- 29035070 TI - Verbal fluency in male and female schizophrenia patients: Different patterns of association with processing speed, working memory span, and clinical symptoms. AB - OBJECTIVE: Decreased processing speed in schizophrenia patients has been identified as a major impairment factor in various neuropsychological domains. Working memory span has been found to be involved in several deep or effortful cognitive processes. We investigated the impact that these 2 cognitive functions may have on phonological and semantic fluency in schizophrenia patients and healthy participants. METHOD: Fifty-five patients with schizophrenia and 60 healthy participants were administered a neuropsychological battery including phonological and semantic fluency, working memory, and cognitive and motor speed. RESULTS: Regression analyses revealed that motor speed was related to phonological fluency in female patients, whereas cognitive speed was related to semantic fluency in male patients. In addition, working memory span was related to verbal fluency in women from both the patient and the healthy control groups. Decreased processing speed, but not decreased working memory span, accounted for the verbal fluency deficit in patients. Verbal fluency was inversely related to attention deficit in female patients and to negative symptoms in male patients. CONCLUSIONS: Decreased processing speed may be the main factor in verbal fluency impairment of patients. Further, the cognitive and clinical predictors of verbal fluency efficiency are different in men and women. (PsycINFO Database Record PMID- 29035071 TI - Focused cognitive control in dishonesty: Evidence for predominantly transient conflict adaptation. AB - Giving a dishonest response to a question entails cognitive conflict due to an initial activation of the truthful response. Following conflict monitoring theory, dishonest responding could therefore elicit transient and sustained control adaptation processes to mitigate such conflict, and the current experiments take on the scope and specificity of such conflict adaptation in dishonesty. Transient adaptation reduces differences between honest and dishonest responding following a recent dishonest response. Sustained adaptation has a similar behavioral signature but is driven by the overall frequency of dishonest responding. Both types of adaptation to recent and frequent dishonest responses have been separately documented, leaving open whether control processes in dishonest responding can flexibly adapt to transient and sustained conflict signals of dishonest and other actions. This was the goal of the present experiments which studied (dis)honest responding to autobiographical yes/no questions. Experiment 1 showed robust transient adaptation to recent dishonest responses whereas sustained control adaptation failed to exert an influence on behavior. It further revealed that transient effects may create a spurious impression of sustained adaptation in typical experimental settings. Experiments 2 and 3 examined whether dishonest responding can profit from transient and sustained adaption processes triggered by other behavioral conflicts. This was clearly not the case: Dishonest responding adapted markedly to recent (dis)honest responses but not to any context of other conflicts. These findings indicate that control adaptation in dishonest responding is strong but surprisingly focused and they point to a potential trade-off between transient and sustained adaptation. (PsycINFO Database Record PMID- 29035073 TI - Contextual cueing of tactile search is coded in an anatomical reference frame. AB - This work investigates the reference frame(s) underlying tactile context memory, a form of statistical learning in a tactile (finger) search task. In this task, if a searched-for target object is repeatedly encountered within a stable spatial arrangement of task-irrelevant distractors, detecting the target becomes more efficient over time (relative to nonrepeated arrangements), as learned target distractor spatial associations come to guide tactile search, thus cueing attention to the target location. Since tactile search displays can be represented in several reference frames, including multiple external and an anatomical frame, in Experiment 1 we asked whether repeated search displays are represented in tactile memory with reference to an environment-centered or anatomical reference frame. In Experiment 2, we went on examining a hand-centered versus anatomical reference frame of tactile context memory. Observers performed a tactile search task, divided into a learning and test session. At the transition between the two sessions, we introduced postural manipulations of the hands (crossed <-> uncrossed in Expt. 1; palm-up <-> palm-down in Expt. 2) to determine the reference frame of tactile contextual cueing. In both experiments, target-distractor associations acquired during learning transferred to the test session when the placement of the target and distractors was held constant in anatomical, but not external, coordinates. In the latter, RTs were even slower for repeated displays. We conclude that tactile contextual learning is coded in an anatomical reference frame. (PsycINFO Database Record PMID- 29035072 TI - Distinguishing among potential mechanisms of singleton suppression. AB - Previous research has revealed that people can suppress salient stimuli that might otherwise capture visual attention. The present study tests between 3 possible mechanisms of visual suppression. According to first-order feature suppression models, items are suppressed on the basis of simple feature values. According to second-order feature suppression models, items are suppressed on the basis of local discontinuities within a given feature dimension. According to global-salience suppression models, items are suppressed on the basis of their dimension-independent salience levels. The current study distinguished among these models by varying the predictability of the singleton color value. If items are suppressed by virtue of salience alone, then it should not matter whether the singleton color is predictable. However, evidence from probe processing and eye movements indicated that suppression is possible only when the color values are predictable. Moreover, the ability to suppress salient items developed gradually as participants gained experience with the feature that defined the salient distractor. These results are consistent with first-order feature suppression models, and are inconsistent with the other models of suppression. In other words, people primarily suppress salient distractors on the basis of their simple features and not on the basis of salience per se. (PsycINFO Database Record PMID- 29035074 TI - Biased guessing in a complete-identification visual-working-memory task: Further evidence for mixed-state models. AB - Research is reported that provides evidence for a significant role of mixed states and guessing processes in tasks of visual working memory (VWM). Subjects engaged in a complete-identification VWM task. The stimulus set consisted of 16 colors roughly equally spaced around a color circle. On each trial, a memory-set drawn from the colors was briefly presented, followed by a location probe. Subjects attempted to reproduce the color of the probed item by clicking on the appropriate response button of a discrete color wheel. The key manipulation was to vary payoffs for alternative correct responses across trials. Analysis of the resulting matrices of individual-subject identification-confusion data provided evidence for a systematic guessing process: On trials in which subjects had no memory for the probed stimulus, they guessed with high probability using the high payoff response. Formal modeling corroborated this interpretation. Mixed-state models that assumed that performance involved a combination of memory-based responding and biased guessing yielded accurate and easy-to-interpret accounts of the identification data; by comparison, variable-resources (VR) models without a guessing state struggled to account for the data, including versions with bias parameters for the high-payoff response. The authors argue that the work adds to recent converging sources of evidence that point to a significant role of discrete, mixed states in VWM. The authors also suggest directions for development of extended VR models with sophisticated knowledge-rich decision rules for the complete-identification task. (PsycINFO Database Record PMID- 29035075 TI - Whatever you do, don't look at the...: Evaluating guidance by an exclusionary attentional template. AB - People can use a target template consisting of one or more features to guide attention and gaze to matching objects in a search array. But can we also use feature information to guide attention away from known irrelevant items? Some studies found a benefit from foreknowledge of a distractor feature, whereas others found a cost. Importantly, previous work has largely relied on end-of trial manual responses; it is unclear how feature-guided avoidance might unfold as candidate objects are inspected. In the current experiments, participants were cued with a distractor feature to avoid, then performed a visual search task while eye movements were recorded. Participants initially fixated a to-be-avoided object more frequently than predicted by chance, but they also demonstrated avoidance of cue-matching objects later in the trial. When provided more time between cue stimulus and search array, participants continued to be initially captured by a cued-color item. Furthermore, avoidance of cue-matching objects later in the trial was not contingent on initial capture by a cue-matching object. These results suggest that the conflicting findings in previous negative cue experiments may be explained by a mixture of two independent processes: initial attentional capture by memory-matching items and later avoidance of known irrelevant items. (PsycINFO Database Record PMID- 29035077 TI - Task conflict and proactive control: A computational theory of the Stroop task. AB - The Stroop task is a central experimental paradigm used to probe cognitive control by measuring the ability of participants to selectively attend to task relevant information and inhibit automatic task-irrelevant responses. Research has revealed variability in both experimental manipulations and individual differences. Here, we focus on a particular source of Stroop variability, the reverse-facilitation (RF; faster responses to nonword neutral stimuli than to congruent stimuli), which has recently been suggested as a signature of task conflict. We first review the literature that shows RF variability in the Stroop task, both with regard to experimental manipulations and to individual differences. We suggest that task conflict variability can be understood as resulting from the degree of proactive control that subjects recruit in advance of the Stroop stimulus. When the proactive control is high, task conflict does not arise (or is resolved very quickly), resulting in regular Stroop facilitation. When proactive control is low, task conflict emerges, leading to a slow-down in congruent and incongruent (but not in neutral) trials and thus to Stroop RF. To support this suggestion, we present a computational model of the Stroop task, which includes the resolution of task conflict and its modulation by proactive control. Results show that our model (a) accounts for the variability in Stroop-RF reported in the experimental literature, and (b) solves a challenge to previous Stroop models-their ability to account for reaction time distributional properties. Finally, we discuss theoretical implications to Stroop measures and control deficits observed in some psychopathologies. (PsycINFO Database Record PMID- 29035076 TI - Internal and external sources of variability in perceptual decision-making. AB - It is important to identify sources of variability in processing to understand decision-making in perception and cognition. There is a distinction between internal and external variability in processing, and double-pass experiments have been used to estimate their relative contributions. In these and our experiments, exact perceptual stimuli are repeated later in testing, and agreement on the 2 trials is examined to see if it is greater than chance. In recent research in modeling decision processes, some models implement only (internal) variability in the decision process whereas others explicitly represent multiple sources of variability. We describe 5 perceptual double-pass experiments that show greater than chance agreement, which is inconsistent with models that assume internal variability alone. Estimates of total trial-to-trial variability in the evidence accumulation (drift) rate (the decision-relevant stimulus information) were estimated from fits of the standard diffusion decision-making model to the data. The double-pass procedure provided estimates of how much of this total variability was systematic and dependent on the stimulus. These results provide the first behavioral evidence independent of model fits for trial-to-trial variability in drift rate in tasks used in examining perceptual decision-making. (PsycINFO Database Record PMID- 29035079 TI - Action and perception in literacy: A common-code for spelling and reading. AB - There is strong evidence that reading and spelling in alphabetical scripts depend on a shared representation (common-coding). However, computational models usually treat the two skills separately, producing a wide variety of proposals as to how the identity and position of letters is represented. This article treats reading and spelling in terms of the common-coding hypothesis for perception-action coupling. Empirical evidence for common representations in spelling-reading is reviewed. A novel version of the Start-End Competitive Queuing (SE-CQ) spelling model is introduced, and tested against the distribution of positional errors in Letter Position Dysgraphia, data from intralist intrusion errors in spelling to dictation, and dysgraphia because of nonperipheral neglect. It is argued that no other current model is equally capable of explaining this range of data. To pursue the common-coding hypothesis, the representation used in SE-CQ is applied, without modification, to the coding of letter identity and position for reading and lexical access, and a lexical matching rule for the representation is proposed (Start End Position Code model, SE-PC). Simulations show the model's compatibility with benchmark findings from form priming, its ability to account for positional effects in letter identification priming and the positional distribution of perseverative intrusion errors. The model supports the view that spelling and reading use a common orthographic description, providing a well defined account of the major features of this representation. (PsycINFO Database Record PMID- 29035078 TI - Overrepresentation of extreme events in decision making reflects rational use of cognitive resources. AB - People's decisions and judgments are disproportionately swayed by improbable but extreme eventualities, such as terrorism, that come to mind easily. This article explores whether such availability biases can be reconciled with rational information processing by taking into account the fact that decision makers value their time and have limited cognitive resources. Our analysis suggests that to make optimal use of their finite time decision makers should overrepresent the most important potential consequences relative to less important, put potentially more probable, outcomes. To evaluate this account, we derive and test a model we call utility-weighted sampling. Utility-weighted sampling estimates the expected utility of potential actions by simulating their outcomes. Critically, outcomes with more extreme utilities have a higher probability of being simulated. We demonstrate that this model can explain not only people's availability bias in judging the frequency of extreme events but also a wide range of cognitive biases in decisions from experience, decisions from description, and memory recall. (PsycINFO Database Record PMID- 29035080 TI - Neural scaling laws for an uncertain world. AB - Autonomous neural systems must efficiently process information in a wide range of novel environments which may have very different statistical properties. We consider the problem of how to optimally distribute receptors along a 1 dimensional continuum consistent with the following design principles. First, neural representations of the world should obey a neural uncertainty principle making as few assumptions as possible about the statistical structure of the world. Second, neural representations should convey, as much as possible, equivalent information about environments with different statistics. The results of these arguments resemble the structure of the visual system and provide a natural explanation of the behavioral Weber-Fechner law, a foundational result in psychology. Because the derivation is extremely general, this suggests that similar scaling relationships should be observed not only in sensory continua, but also in neural representations of "cognitive" 1-dimensional quantities such as time or numerosity. (PsycINFO Database Record PMID- 29035081 TI - Biological evaluation of novel curcumin-pyrazole-mannich derivative active against drug-resistant Mycobacterium tuberculosis. AB - AIM: Our objective was to identify a more potent curcumin derivative with specific activity against Mycobacterium tuberculosis. MATERIALS & METHODS: A total of 21 curcumin derivatives were synthesized and detailed bio-evaluation was carried out including determination of static/cidality, synergy with front-line antituberculosis drugs and determination of efficacy in the murine model of M. tuberculosis infection. RESULTS: We identified CPMD-6d dihydrochloride exhibiting concentration-dependent bactericidal activity against M. tuberculosis (MIC 2 MUg/ml), even against drug-resistant strains. In addition, it synergizes with front-line antituberculosis drugs as well as significantly reduces bacterial load in mice lungs and spleen at 25 mg/kg as compared with ethambutol at 100 mg/kg. CONCLUSION: Taken together, CPMD-6d dihydrochloride exhibits all properties to be positioned as a novel molecule of interest for treatment of tuberculosis. Graphical abstract: [Formula: see text]. PMID- 29035082 TI - All for one or one for all? Authorship and the cross-sectoral valuation of credit in nutrition science. AB - The passionate pursuit of authorships is fuelled by the value they represent to scholars and scientists. This article asks how this value differs across scientists and how these different processes of valuation inform authorship articulation, strategies, and publication behavior in general. Drawing from a qualitative analysis of authorship practices among nutrition scientists employed at universities, contract research organizations, and in food industry, I argue that two different modi operandi emerge when it comes to authorship. These different ways of working produce different collaborative approaches, different credit distribution strategies amongst collaborators, and different value placed upon (the pursuit of) authorship. These different valuation processes are neither explicit nor recognizable to those reading (and judging) author lists. As a consequence, in the politics of authorship, the names standing atop a scientific publication in nutrition science represent different types of value to both the individuals and employing organizations. PMID- 29035083 TI - Multiplicity-adjusted semiparametric benefiting subgroup identification in clinical trials. AB - Background A recent focus in the health sciences has been the development of personalized medicine, which includes determining the population for which a given treatment is effective. Due to limited data, identifying the true benefiting population is a challenging task. To tackle this difficulty, the credible subgroups approach provides a pair of bounding subgroups for the true benefiting subgroup, constructed so that one is contained by the benefiting subgroup while the other contains the benefiting subgroup with high probability. However, the method has so far only been developed for parametric linear models. Methods In this article, we develop the details required to follow the credible subgroups approach in more realistic settings by considering nonlinear and semiparametric regression models, supported for regulatory science by conditional power simulations. We also present an improved multiple testing approach using a step-down procedure. We evaluate our approach via simulations and apply it to data from four trials of Alzheimer's disease treatments carried out by AbbVie. Results Semiparametric modeling yields credible subgroups that are more robust to violations of linear treatment effect assumptions, and careful choice of the population of interest as well as the step-down multiple testing procedure result in a higher rate of detection of benefiting types of patients. The approach allows us to identify types of patients that benefit from treatment in the Alzheimer's disease trials. Conclusion Attempts to identify benefiting subgroups of patients in clinical trials are often met with skepticism due to a lack of multiplicity control and unrealistically restrictive assumptions. Our proposed approach merges two techniques, credible subgroups, and semiparametric regression, which avoids these problems and makes benefiting subgroup identification practical and reliable. PMID- 29035084 TI - Traffic Injury Prevention. PMID- 29035085 TI - Lung Microbiota Is Related to Smoking Status and to Development of Acute Respiratory Distress Syndrome in Critically Ill Trauma Patients. AB - RATIONALE: Cigarette smoking is associated with increased risk of acute respiratory distress syndrome (ARDS) in patients after severe trauma; however, the mechanisms underlying this association are unknown. OBJECTIVES: To determine whether cigarette smoking contributes to ARDS development after trauma by altering community composition of the lung microbiota. METHODS: We studied the lung microbiota of mechanically ventilated patients admitted to the ICU after severe blunt trauma. To do so, we used 16S ribosomal RNA gene amplicon sequencing of endotracheal aspirate samples obtained on ICU admission (n = 74) and at 48 hours after admission (n = 30). Cigarette smoke exposure (quantified using plasma cotinine), ARDS development, and other clinical parameters were correlated with lung microbiota composition. MEASUREMENTS AND MAIN RESULTS: Smoking status was significantly associated with lung bacterial community composition at ICU admission (P = 0.007 by permutational multivariate ANOVA [PERMANOVA]) and at 48 hours (P = 0.03 by PERMANOVA), as well as with significant enrichment of potential pathogens, including Streptococcus, Fusobacterium, Prevotella, Haemophilus, and Treponema. ARDS development was associated with lung community composition at 48 hours (P = 0.04 by PERMANOVA) and was characterized by relative enrichment of Enterobacteriaceae and of specific taxa enriched at baseline in smokers, including Prevotella and Fusobacterium. CONCLUSIONS: After severe blunt trauma, a history of smoking is related to lung microbiota composition, both at the time of ICU admission and at 48 hours. ARDS development is also correlated with respiratory microbial community structure at 48 hours and with taxa that are relatively enriched in smokers at ICU admission. The data derived from this pilot study suggest that smoking-related changes in the lung microbiota could be related to ARDS development after severe trauma. PMID- 29035086 TI - NOTCH Signaling Is Essential for Maturation, Self-Renewal, and Tri Differentiation of In Vitro Derived Human Neural Stem Cells. AB - Although neural stem cells (NSCs) have potential applications in treating neurological disorders, much still needs to be understood about the differentiation biology for their successful clinical translation. In this study, we aimed at deriving NSCs from human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) and explored the role of Notch signaling in the differentiation process. The hUCB-MSCs were characterized as per guidelines of the International Society of Cellular Therapy. NSCs were successfully generated from hUCB-MSCs by using epidermal and fibroblast growth factors under serum-free conditions. The expression of NSC markers (Nestin and Musashi-1) in the neurospheres generated from hUCB-MSCs in the presence or absence of N-[N-(3,5 difluorophenacetyl)-l-alanyl]-S-phenylglycine t-butyl ester (DAPT; Notch inhibitor) was immuno-phenotypically characterized by using immunofluorescence. DAPT showed significant (*p < 0.05) downregulated expression of the NSC markers Nestin and SOX2-at different time points (6 hours, 12 hours, 24 hours, 36 hours, and 5 days) post-treatment. In addition, Mushashi-1 (NSC marker) expression in NSCs was also inhibited after DAPT treatment, which signifies that the process is Notch dependent. These data were further correlated with formation of a reduced average number of neurospheres derived from hUCB-MSCs (2 colonies vs. 11 colonies/field of view) in the presence of DAPT compared with the control (without DAPT). The expression of Notch target genes in NSC cultures (Notch intracellular domain [NICD], HES1, and HES5) was also significantly downregulated after DAPT treatment. In the presence of DAPT, the markers for neuronal (MAP2, NEFH); and glial (GFAP, GLUL, and MBP) lineages were significantly downregulated as seen via immunofluorescence and quantitative polymerase chain reaction, indicating the role of Notch in the tri-differentiation mechanism of NSCs as well. In addition, Notch signaling inhibition induced higher cell death during the lineage commitment of NSCs as measured 3 days (16.9% vs. 8.9%) and 6 days (42.9% vs. 20.8%) postinduction. These results suggest that the efficient derivation of NSCs and their subsequent lineage commitment from hUCB-MSCs requires the Notch signaling pathway. PMID- 29035088 TI - The Last 25 Years of Obstructive Sleep Apnea Epidemiology-and the Next 25? PMID- 29035087 TI - Xeroderma pigmentosum complementation group D polymorphism toward lung cancer susceptibility survival and response in patients treated with platinum chemotherapy. AB - AIM: The study investigated role of xeroderma pigmentosum complementation group D (XPD) single nucleotide polymorphisms in modulating lung cancer risk and its association with overall survival and clinical outcomes. METHODS: XPD polymorphisms were detected using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). RESULTS: CC genotype of A751C polymorphism was associated with an increased lung cancer risk (p = 0.01). Classification and Regression Tree (CART) analysis depicted C156A as the major contributing factor. Patients having CC, treated with irinotecan-cisplatin/carboplatin regimen showed a better survival (median survival time = 25.2) whereas a poor survival was for XPD G312A. Similarly, patients treated with pemetrexed and carrying heterozygous genotype of G312A polymorphism had a poor survival (p = 0.01). CONCLUSION: A751C and G312A act as a predictive marker in lung cancer patients treated with platinum chemotherapy. These findings might facilitate therapeutic decisions for individualized therapy in lung cancer patient. [Formula: see text]. PMID- 29035091 TI - Inverse Relationship between Soluble RAGE and Risk for Bronchopulmonary Dysplasia. PMID- 29035089 TI - Intent to quit, quit attempts, and perceived health risk reduction among African American, Latino, and White nondaily and daily smokers in the United States. AB - OBJECTIVE: Ethnic and racial differences in smoking patterns and behaviors have been well documented and most African American and Latino smokers are nondaily or light smokers. However, differences within smoking levels are understudied. Our primary aim was to determine whether there are racial and ethnic differences among African American, Latino, and White nondaily, light daily, and moderate to heavy daily smokers on (1) perceived health risk reduction, (2) intentions to quit, and (3) past year quit attempts. DESIGN: Smokers were recruited through an online research panel for a cross-sectional survey (n = 2376). Sampling quotas were used to obtain equal numbers of African American, Latino, and White nondaily and daily smokers. RESULTS: African American (59.6%) and Latino (54%) nondaily smokers were more likely than White nondaily smokers (45%) to currently limit their cigarettes per day (cpd) as a perceived health risk reduction strategy (p < 0.05). African American nondaily smokers were more likely than Latino and White nondaily smokers (p < 0.05) to limit their smoking in the past year as a perceived health risk reduction strategy (range: 0 'never' to 5 'always'; Means = 3.2, 2.9, 3.0, standard deviations [SD] = 1.1, 1.1, 1.2, respectively). African American nondaily smokers (15%) were more likely than either Latinos (7.8%) or Whites (8.5%) to intend to quit in the next 30 days (p < 0.01). African American (61.6%) and Latino (60.3%) nondaily smokers were more likely than Whites (49%) to have made a quit attempt in the past year (p < 0.01). Fewer racial and ethnic differences were found among daily smokers. CONCLUSIONS: Racial and ethnic group differences were more pronounced among nondaily smokers compared to light daily smoker and moderate to heavy daily smokers. Smoking level is an important consideration in understanding racial and ethnic variation in perceived health risk reduction and cessation-related behaviors. PMID- 29035092 TI - Vitamin D supplementation and non-alcoholic fatty liver disease: A critical and systematic review of clinical trials. AB - Previous observational studies have found a relationship between vitamin D deficiency and non-alcoholic fatty liver disease (NAFLD). However, this type of study could not show the causal relationship between these two conditions. Therefore, we systematically and critically reviewed the available clinical trials to elucidate such relationship. We searched databases such as Medline, Scopus and Cochrane to identify the clinical trials that assessed the effects of vitamin D supplementation in adults with NAFLD. The outcome variables of interest were indicators of hepatic steatosis, liver enzymes, insulin resistance, inflammation and oxidative stress. A total of 6 studies were included in the qualitative analysis. Only in two studies the grade of hepatic steatosis decreased significantly after vitamin D supplementation. The changes in insulin resistance parameters were reported significant only in one. Of the 3 included studies that measured biomarkers of inflammation and oxidative stress, one revealed a significant decrease in these biomarkers after vitamin D supplementation. Findings from current review study provided new insight into the factors that could affect the therapeutic role of vitamin D in NAFLD. Factors such as gender differences, baseline serum status of vitamin D, co supplementation with calcium and gene polymorphism should be considered when designing future clinical trials. PMID- 29035090 TI - Early Respiratory Bacterial Detection and Antistaphylococcal Antibiotic Prophylaxis in Young Children with Cystic Fibrosis. AB - RATIONALE: Consensus is lacking regarding antistaphylococcal antibiotic prophylaxis use for young children with cystic fibrosis. Prophylaxis is recommended in the United Kingdom, but it is recommended against in the United States. OBJECTIVES: To test the hypothesis that antistaphylococcal antibiotic prophylaxis is associated with a decreased risk of Staphylococcus aureus acquisition but no increased risk of Pseudomonas aeruginosa acquisition. METHODS: We undertook a longitudinal observational study of children with cystic fibrosis who were recruited from birth (or from their first registry entry in the period) and followed until the age of 4 years (1,500 d) using 2000-2009 data from the UK Cystic Fibrosis Trust and Cystic Fibrosis Foundation registries. Children were excluded if they had a positive culture result for S. aureus or P. aeruginosa, or if they were receiving inhaled antibiotics, at the first encounter. Time to first S. aureus and P. aeruginosa detection in the UK/U.S. cohorts was compared using a Cox proportional hazards model. A UK-based analysis compared the same for those receiving flucloxacillin with those who received no prophylaxis. We included the following covariates: sex, age at registry entry, dornase alfa use, genotype, and center size. RESULTS: The primary analysis comprised 1,074 UK and 3,677 U.S. children. The risk of first detection was greater in U.S. children than in UK children for S. aureus (hazard ratio [HR], 5.79; 95% confidence interval [CI], 4.85, 6.90; P < 0.001) and P. aeruginosa (HR, 1.92; 95% CI, 1.65, 2.24; P < 0.001). In the UK analysis, we compared 278 children receiving flucloxacillin and 306 receiving no prophylaxis. Flucloxacillin was not associated with a reduced risk of S. aureus detection (HR, 1.22; 95% CI, 0.74, 2.0; P = 0.43), but it was associated with an increased risk of P. aeruginosa detection (HR, 2.53; 95% CI, 1.71, 3.74; P < 0.001). None of the covariates significantly affected the risk estimate in either analysis. CONCLUSIONS: The risk of first detection of S. aureus and P. aeruginosa was greater in the United States than in the United Kingdom. In the United Kingdom, the risk of first P. aeruginosa detection was increased among those receiving flucloxacillin compared with those who received no prophylaxis. These observational findings should be examined in randomized controlled trials. PMID- 29035093 TI - Gastric Banding Surgery versus Continuous Positive Airway Pressure for Obstructive Sleep Apnea: A Randomized Controlled Trial. PMID- 29035094 TI - Doktor Kot, Doktor Sla - book doctors, plant doctors and the segmentation of the medical market place in Meghalaya, northeast India. AB - Despite decades of research on India's plural health care market, the practices of many local health traditions outside the allopathic and codified traditions are under-studied. Drawing on interview and observational data, this paper explores the space in which indigenous traditional Khasi healers in Meghalaya state, northeast India, practice. Khasi indigenous healers describe themselves as doktor sla, plant doctors, to distinguish themselves from doktor kot, or book doctors. This distinction operates as a rhetorical resource, utilised to carve a distinct sphere of expertise in relation to the allopathic sector, and to mark claims for the specifically local appropriateness of traditional practices within a shifting market of state-sponsored provision. Khasi healers are a heterogeneous group who treat a wide variety of conditions, including physical ailments which have no obvious correlates in biomedical systems, and musculoskeletal disorders, with which they have recognised expertise. In addition to claiming these discrete strengths, healers also present themselves as accommodating deficiencies in biomedicine, including inherent generic weaknesses of allopathic care as well as specific local gaps in rural health care provision. Thus, the expertise niches of traditional healers have evolved through their interactions with, and the needs of, the community, but also through managing a shifting boundary with biomedical practitioners, who are explicitly sceptical of their efficacy, but tacitly accepting of the ways in which they manage the gaps in biomedical provision. While codified non-biomedical traditions in India have engaged in universalising professionalising projects, in this setting at least, non-codified practitioners have instead utilised discourses of localism. PMID- 29035095 TI - A Prospective Validation of a Clinical Algorithm to Detect Tuberculosis in Child Contacts. PMID- 29035097 TI - Blood Eosinophilia Neither Reflects Tissue Eosinophils nor Worsens Clinical Outcomes in Chronic Obstructive Pulmonary Disease. PMID- 29035098 TI - Quality of life and subjective health status according to handgrip strength in the elderly: a cross-sectional study. AB - OBJECTIVES: The purpose of this cross-sectional study was to examine potential associations between handgrip strength and health-related quality of life, or subjective health status, in the elderly. METHOD: We performed secondary data analysis on 2377 elderly individuals aged >65 years. Raw data from the Korea National Health and Nutrition Examination Survey VI (2014-2015), were drawn from a representative national sample. RESULTS: Of those aged >=65 years or older, 25.4% had low handgrip strength. After adjusting for confounding variables, the odds ratios of elderly individuals with low handgrip strength were 1.30 (95% confidence interval [CI]: 1.00-1.69) for mobility, 2.18 (95% CI: 1.47-3.22) for self-care, 1.70 (95% CI: 1.30-2.23) for usual activities, 1.30 (95% CI: 1.01 1.67) for pain/discomfort, 1.03 (95% CI: 0.74-1.44) for anxiety/depression, 1.44 (95% CI: 1.10-1.87) for the EQ-5D index, and 1.37 (95% CI: 1.08-1.73) for subjective health status. CONCLUSION: Health-related quality of life and subjective health status differ according to handgrip strength. Therefore, handgrip strength should be addressed to improve quality of life in elderly individuals. Elderly individuals require exercise education and adequate nutritional intake to increase handgrip strength. PMID- 29035100 TI - Serum lipid level and lifestyles are associated with carotid femoral pulse wave velocity among adults: 4.4-year prospectively longitudinal follow-up of a clinical trial. AB - Lifestyle modifications are recommended as the initial treatment for high blood pressure. The influence of dyslipidemia might be via moderate arterial stiffness, which results in hypertension and cardiovascular disease. We used data from a subgroup of the lifestyle, level of serum lipids/carotid femoral-pulse wave velocity (CF-PWV) Susceptibility BEST Study, a population-based study of community-dwelling adults aged 45-75 years. The serum lipid level and CF-PWV were measured at baseline, and lifestyle such as smoking status, sleeping habits, and the level of oil or salt intake was determined with the use of a validated questionnaire during follow-up. Arterial stiffness was determined as CF-PWV using an electrocardiogram after a mean follow-up of 4.4 years. Regression coefficients (95% CIs), adjusted for demographics, risk factors, cholesterol, and triglycerides (TGs), were calculated by linear regression. Logistic regression analysis was used to identify the association between the variables with CF-PWV independently. In the results, glucose and total cholesterol (TC) were associated with higher CF-PWV (p = 0.000) and lower-destiny lipoprotein was associated with lower CF-PWV (p = 0.001) after adjustments for age, sex, mean arterial pressure, and heart rate. There were significant associations observed for current salt intake in relation to CF-PWV (p-trend = 0.038) without adjustment. This association was retained after adjustments for covariates and had statistical significance (p-trend = 0.048) in model 3, which adjusted age, sex, baseline CF PWV, mean arterial pressure, heart rate waist circumference, education, smoking status, physical activity, diabetes mellitus (DM), heart disease, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, TGs, antihypertensive medicine, nitrate medicine, and antiplatelet medicine. Linear regression showed statistically significant associations between LDL and CF-PWV in the fully adjusted models (model 1 p = 0.010, model 2 p = 0.020, model 3 p = 0.017). Logistic regression analysis showed that CF-PWV was independently associated with age (p = 0.000), TC (p = 0.000), TGs (p = 0.000), and homo cysteine (p = 0.000), and their odds ratios were 0.781, 3.424, 0.075, and 1.046, respectively. Our results showed a positive association between LDL and arterial stiffness, and suggested that less smoking status, sleeping disorder, and salt intake were associated with less arterial stiffness. PMID- 29035099 TI - Association between growth differentiation factor 15 and left ventricular hypertrophy in hypertensive patients and healthy adults. AB - Growth differentiation factor 15 (GDF-15) as an independent biomarker of cardiovascular diseases merits further evaluation. We studied the association between plasma GDF-15 levels and left ventricular hypertrophy (LVH) in hypertensive patients and healthy adults. Hypertensive LVH measurements were performed via echocardiography and analyzed using the cube formula, and human GDF 15 together with interleukin-6 (IL-6) and matrix metalloproteinase-9 (MMP-9) concentrations were determined via enzyme-linked immunosorbent assay (ELISA). All data were analyzed using SPSS 13.0 software. A total of 302 participants were recruited for this clinical study. Circulating GDF-15, IL-6 and MMP-9 levels were significantly higher in LVH patients (n = 67) than in non-LVH patients (n = 172) and healthy controls (n = 63) (p < 0.001). After adjustment for confounders via multivariate logistic regression, elevated plasma GDF-15 concentrations remained independently associated with LVH in hypertensive patients. In addition, GDF-15 was positively correlated with IL-6 and MMP-9 levels in human plasma, respectively, suggesting that a link exists between GDF-15 expression and inflammation. We also calculated an optimal GDF-15 cut-off point with which LVH severity can be predicted in the current study. In conclusion, GDF-15 is associated with hypertensive LVH and may be a powerful biomarker with which LVH risk can be predicted in patients with hypertension. PMID- 29035101 TI - Biofilm Formation, Antimicrobial Resistance, and Sanitizer Tolerance of Salmonella enterica Strains Isolated from Beef Trim. AB - In the beef industry, product contamination by Salmonella enterica is a serious public health concern, which may result in human infection and cause significant financial loss due to product recalls. Currently, the precise mechanism and pathogen source responsible for Salmonella contamination in commercial establishments are not well understood. We characterized 89 S. enterica strains isolated from beef trim with respect to their biofilm-forming ability, antimicrobial resistance, and biofilm cell survival/recovery growth after sanitizer exposure. A total of 28 Salmonella serovars was identified within these strains. The most common serovars identified were Anatum, Dublin, Montevideo, and Typhimurium, with these accounting for nearly half of the total strains. The vast majority (86%) of the strains was able to develop strong biofilms, and the biofilm-forming ability was highly strain dependent and related to cell surface expression of extracellular polymeric structures. These strains also demonstrated strong tolerance to quaternary ammonium chloride (QAC) and chlorine dioxide (ClO2), but were more sensitive to chlorine treatment. Sanitizer tolerance and bacterial postsanitization recovery growth were closely associated with strains' biofilm-forming ability. Thirty percent of the examined strains were found resistant to multiple antimicrobial agents and the resistance phenotypes were serovar associated, but not related to strains' biofilm-forming ability. Pulsed field gel electrophoresis analysis tended to group strains by serovar rather than by biofilm-forming ability. Collectively, these data indicate that the strong biofilm formers of certain S. enterica strains/serovars possess significant potential for causing meat product contamination in meat processing environment. PMID- 29035102 TI - Clinical News. PMID- 29035103 TI - Racial Disparities in the Association between Alcohol Use Disorders and Health in Black and White Women. AB - Adverse health attributed to alcohol use disorders (AUD) is more pronounced among black than white women. We investigated whether socioeconomic status (education and income), health care factors (insurance, alcoholism treatment), or psychosocial stressors (stressful life events, racial discrimination, alcoholism stigma) could account for black-white differences in the association between AUD and physical and functional health among current women drinkers 25 years and older (N = 8,877) in the National Epidemiological Survey on Alcohol and Related Conditions. Generalized linear regression tested how race interacted with the association between 12-month DSM-IV AUD in Wave 1 (2001-2002) and health in Wave 2 (2004-2005), adjusted for covariates (age group, alcohol consumption, smoking, body mass index, physical activity, diabetes, cardiovascular disease, and arthritis). Black women with AUD had poorer health than white women with AUD (beta = -3.18, SE = 1.28, p < .05). This association was partially attenuated after adjusting for socioeconomic status, health care, and psychosocial factors (beta = -2.64, SE = 1.27, p < .05). In race-specific analyses, AUD was associated with poorer health for black but not white women. Accounting for black-white differences in AUD and physical and functional health among women requires investigation beyond traditional explanatory mechanisms. PMID- 29035104 TI - Association between discrimination and obesity in African-American men. AB - The objective of this study was to examine the association between discrimination and obesity among a U.S. nationally representative sample of African-American men. Data from the 2001-2003 National Survey of American Life (NSAL) were used to collect measures of everyday and major discrimination, and body mass index (BMI) taken from self-reports. Poisson regression with robust standard errors was applied to estimate the prevalence ratios of everyday and major discrimination as it relates to obesity (BMI >= 30 kg/m2), controlling for potential confounders. In the model that included both everyday and major discrimination, men who experienced any major discrimination had a higher likelihood of obesity (prevalence ratio [PR] = 1.33, 95% confidence interval [CI], 1.06, 1.66) than those who did not experience any major discrimination, controlling for age, marital status, income, education, major stressors, two or more chronic conditions, and physical activity. Exposure to any major discrimination was found to be associated with obesity in African-American men. Future studies among this population are needed to examine whether the observed changes in self-reports of major discrimination are associated with obesity, measured by BMI, over time. The health of African-American men must be a priority in reducing excess disparities in disease, disability, and death. PMID- 29035106 TI - Does the Hispanic health advantage extend to better management of hypertension? The role of socioeconomic status, sociobehavioral factors, and health care access. AB - Hispanics in the United States (and foreign-born Hispanics in particular) have relatively favorable health given their lower socioeconomic status compared to, for example, non-Hispanic whites. This phenomenon is often called the Hispanic health paradox (HHP). This study examines whether the previously documented HHP in hypertension prevalence extends to its management using clinical and self reported measures from the 2007-2012 National Health and Nutrition Examination Surveys. Multivariate models adjusting for demographic, socioeconomic, and sociobehavioral characteristics show an advantage among foreign-born Mexicans in hypertension prevalence relative to non-Hispanic whites (adjusted OR = 0.85). However, compared to non-Hispanic whites, foreign-born Mexicans were 38% less likely to receive treatment recommendations and, when advised to undergo treatment, were 60% less likely to adhere to treatment. Adjusting for health care access and utilization dramatically reduces disparities in hypertension control between foreign-born Mexicans and non-Hispanic whites, suggesting that insufficient systematic access to and use of quality health care erodes the HHP and contributes to the deterioration of health throughout the immigrant experience. Without appropriate interventions, particularly in health care access and utilization, poorer hypertension management among foreign-born Mexicans may negatively affect the Hispanic health profile, increase risk of cardiovascular disease-related mortality, and erode the Hispanic health advantage in the future. PMID- 29035105 TI - Racial/Ethnic Differences in Early-Life Mortality in the United States. AB - U.S. early-life (ages 1-24) deaths are tragic, far too common, and largely preventable. Yet demographers have focused scant attention on U.S. early-life mortality patterns, particularly as they vary across racial and ethnic groups. We employed the restricted-use 1999-2011 National Health Interview Survey-Linked Mortality Files and hazard models to examine racial/ethnic differences in early life mortality. Our results reveal that these disparities are large, strongly related to differences in parental socioeconomic status, and expressed through different causes of death. Compared to non-Hispanic whites, non-Hispanic blacks experience 60 percent and Mexican Americans 32 percent higher risk of death over the follow-up period, with demographic controls. Our finding that Mexican Americans experience higher early-life mortality risk than non-Hispanic whites differs from much of the literature on adult mortality. We also show that these racial/ethnic differences attenuate with controls for family structure and especially with measures of socioeconomic status. For example, higher mortality risk among Mexican Americans than among non-Hispanic whites is no longer significant once we controlled for mother's education or family income. Our results strongly suggest that eliminating socioeconomic gaps across groups is the key to enhanced survival for children and adolescents in racial/ethnic minority groups. PMID- 29035107 TI - Maternal Social Disadvantage and Newborn Telomere Length in Archived Dried Blood Spots from the Michigan Neonatal Biobank. AB - Telomeres are the protective caps at the ends of eukaryotic chromosomes. Short telomere length is associated with morbidity and mortality among adults and may mark the biological impact of social experiences. Using archived dried blood spots from the Michigan Neonatal Biobank, this study examined markers of maternal social disadvantage (educational attainment, receipt of public assistance, marital status, and race/ethnicity) from linked birth certificates as predictors of telomere length at birth in a sample of 192 singleton neonates born to non Hispanic black, non-Hispanic white, and Latina mothers aged 20-35 years. Consistent with two recent studies in newborns, but counter to the idea that maternal social disadvantage is associated with shorter offspring telomere length, we found that infants born to black mothers had longer telomeres than those born to white mothers (b = 0.12, SE = 0.06, p = .05). However, black/white differences in newborn telomere length varied by receipt of public assistance. Among newborns whose mothers received WIC and/or Medicaid, there were no significant black/white differences in telomere length (b = 0.09, SE = 0.08, p = .25). In contrast, among those whose mothers did not receive public assistance just 6 out of 69 infants born to black mothers versus 41 out of 69 infants born to white mothers-we found that babies born to black mothers had longer telomere length than babies born to white mothers (b = 0.37, SE = 0.16, p = .03). The interaction between black race/ethnicity and receipt of public assistance did not reach the conventional threshold for statistical significance (b = -0.22, SE = 0.15, p = .13), suggesting that this finding may be due to chance. No other markers of maternal social disadvantage were related to infant telomere length. Although replication of these results in a larger sample with more infants born to black mothers with relatively high socioeconomic status is needed, this study offers preliminary support for the hypothesis that race/ethnic differences in newborn telomere length depend on social context. PMID- 29035109 TI - Disfluent whole-word repetitions in cluttering: Durational patterns and functions. AB - In this article, disfluent word-repetitions are analysed in cluttered and control speech. The main questions are the following: (1) Do different functions of word repetitions occur in different ratio in cluttered and control speech? (2) Are there any differences between PWC and control speakers in durational parameters of disfluent word-repetitions? Results show that there are differences between the two groups of speakers in the types of word-repetitions, and in their durational parameters. In cluttered speech, the most frequent type of repetitions were covert self-repairs while in control speech canonical repetitions are dominated. There were significant differences in the durational parameters of word-repetitions of both groups except in the function of covert self-monitoring. According to the results, it can be concluded that as in earlier studies, analysis of the frequency of types of disfluencies in themselves is not enough as this analysis does not always show the differences between the two groups. It is important to learn more about the durational and functional characteristics of the specific types of disfluencies comparing them in cluttered and control speech. PMID- 29035108 TI - The Contribution of Weight Status to Black-White Differences in Mortality. AB - This article examines the contribution of weight status to black-white (B-W) differences in mortality at ages 40-79 using data from the National Health and Nutrition Examination Survey. We measured body mass index (BMI) based on the highest BMI attained and contrasted the contribution of BMI to that of smoking and educational attainment. We estimated both additive and multiplicative models. In addition to estimating regression coefficients we asked what would happen to B W differences in mortality if blacks had the BMI distribution of whites, the smoking prevalence of whites, or the educational distribution of whites. B-W differences in BMI account for close to 30 percent of the B-W difference in female mortality but only about 1 percent of the B-W difference in male mortality at ages 40-79. In contrast, smoking makes a much larger contribution to the B-W difference in male (17 percent) than female (6 percent) mortality. Differences in educational attainment in turn explain 19 to 25 percent of the B-W mortality difference among men and women, respectively. Our results underscore the importance of two key risk factors as well as educational attainment in generating B-W differences in mortality. PMID- 29035110 TI - Early communicative skills of children with Klinefelter syndrome. AB - Many studies reported the presence of language impairments in children and adolescents with Klinefelter syndrome (KS). However, the first stage of their language development has been scarcely studied. The present study aimed to describe the spontaneous communicative production of 18-month-old children with KS, in comparison with that of typically developing (TD) male peers, aiming to verify the existence of different early communicative skills in both vocal and gestural modality and to identify the presence of possible associations with their later vocabulary size. Children with KS showed a lower competence in both lexical skills and emergent syntactic abilities than TD peers. No significant differences were found in gesture production. Considering the possibility of identifying an association between early communicative skills and later vocabulary size, the vocal production of TD children appeared to be significantly related to their later lexical skills; whereas, the number of gestures produced by children with KS appeared to be related to their later lexical abilities. The early detection of language risk factors will allow early intervention and careful monitoring of these children's communicative development. PMID- 29035112 TI - Celebrating 25 Years of the European Society of Gene and Cell Therapy. PMID- 29035111 TI - Identification of atopic dermatitis phenotypes with good responses to probiotics (Lactobacillus plantarum CJLP133) in children. AB - The therapeutic effect of probiotics in atopic dermatitis (AD) remains controversial and varies according to the individual patient. We aimed to identify a population of AD patients with a good clinical response to probiotic treatment. We recruited 76 children with a median age of 7.1 years who suffered from moderate to severe AD. After a 2-week washout period, all patients were given Lactobacillus plantarum CJLP133 at a dosage of 1*1010 colony-forming units once a day for 12 weeks. We measured eosinophil counts in the peripheral blood, the proportion of CD4+CD25+Foxp3+ regulatory T (Treg) cells in CD4+ T cells, serum total immunoglobulin E (IgE) levels, and specific IgE against common allergens before the start of the treatment (T1) and at discontinuation (T2). Responders were defined as patients with at least a 30% reduction in the SCORing of AD (SCORAD) index after treatment. There were 36 responders and 40 non responders after probiotic treatment. The median SCORAD was reduced from 29.5 (range 20.6-46.3) at T1 to 16.4 (range 6.3-30.8) at T2 in the responder group (P<0.001). In multivariable logistic regression analysis, a good clinical response was significantly associated with high total IgE levels (aOR 5.1, 95% CI 1.1-23.6), increased expression of transforming growth factor (TGF)-beta (aOR 4.6, 95% CI 1.3-15.9), and a high proportion of Treg cells in CD4+ T cells (aOR 3.7, 95% CI 1.1-12.7) at T1. In the responder group, the proportion of Treg cells was significantly increased after 12 weeks of treatment (P=0.004), while TGF-beta mRNA expression was decreased (P=0.017). Our results suggest that a subgroup of patients with a specific AD phenotype showing an immunologically active state (high total IgE, increased expression of TGF-beta, high numbers of Treg cells) may benefit from probiotic treatment with L. plantarum CJLP133. PMID- 29035113 TI - European Society of Gene and Cell Therapy (ESGCT) at 25: A Gene Therapy Community at Its Prime and on the Move. PMID- 29035114 TI - Gene Therapy: From Birth to Maturity Requires Commitment to Science and Ethics. PMID- 29035115 TI - Twenty-Five Years of Gene Therapy: Prof. George Dickson on Past Progress and Future Promise. PMID- 29035116 TI - A Personal Reflection from London. PMID- 29035117 TI - A Sophism in Vectorology: Turning Harmful Defective Retroviral Vectors into Helpful Replication-Competent Retroviruses Against Cancer. PMID- 29035118 TI - Clinical Gene Therapy for Neurodegenerative Diseases: Past, Present, and Future. AB - Clinical gene therapy has made important advances over the last decade. Among neurological diseases, severe genetic neurodegenerative conditions have been the focus of initial clinical applications. Gene therapy has also addressed complex neurodegenerative diseases, particularly Parkinson's disease, with encouraging results in human patients, demonstrating that specific targeting of central nervous system (CNS) cells is a relevant strategy for severe pathologies and that efficient access to the CNS with viral vectors is an achievable goal. The purpose of this review is to summarize the gene therapy clinical applications that have been conducted for neurodegenerative diseases. Limitations and hurdles to obtain and demonstrate benefit in patients, and the new developments that should allow new clinical applications with high beneficial potential are discussed. PMID- 29035119 TI - Response to letter to the editor from Elinder and Nordberg concerning Byber et al. 2016. Cadmium or cadmium compounds and chronic kidney disease in workers and the general population: a systematic review, Crit Rev Toxicol. 46(3):191-240. DOI: 0.3109/10408444.2015.1076375. PMID- 29035120 TI - Use of a Remote Inhaler Monitoring Device to Measure Change in Inhaler Use with Chronic Obstructive Pulmonary Disease Exacerbations. AB - BACKGROUND: Remote inhaler monitoring is an emerging technology that enables the healthcare team to monitor the time and location of a patient's inhaler use. We assessed the feasibility of remote inhaler monitoring for chronic obstructive pulmonary disease (COPD) patients and the pattern of albuterol inhaler use associated with COPD exacerbations. METHODS: Thirty-five participants with COPD used an electronic inhaler sensor for 12 weeks which recorded the date and time of each albuterol actuation. Self-reported COPD exacerbations and healthcare utilization were assessed monthly. We used generalized estimating equations with a logit link to compare the odds of an exacerbation day to a nonexacerbation day by the frequency of daily albuterol use. RESULTS: Average daily albuterol use on nonexacerbation days varied greatly between patients, ranging from 1.5 to 17.5 puffs. There were 48 exacerbation events observed in 29 participants during the study period, of which 16 were moderate-to-severe exacerbations. During the moderate-to-severe exacerbation days, the median value in average daily albuterol use increased by 14.1% (interquartile range: 2.7%-56.9%) compared to average nonexacerbation days. A 100% increase in inhaler use was associated with increased odds of a moderate-to severe exacerbation (odds ratio 1.54; 95% CI: 1.21-1.97). Approximately 74% of participants reported satisfaction with the sensor. CONCLUSIONS: The electronic inhaler sensor was well received in older patients with COPD over a 12-week period. Increased albuterol use captured by the device was associated with self-reported episodes of moderate-to-severe exacerbations. PMID- 29035121 TI - Keep your eye on the target. AB - This paper provides a historical perspective on the origin and development of Target Theory and how its central concepts have influenced the thought processes of radiation biologists for almost a century. PMID- 29035122 TI - Homogeneity of Aerosol Deposition and Mucociliary Clearance are Improved Following Ivacaftor Treatment in Cystic Fibrosis. AB - BACKGROUND: Using planar gamma scintigraphy of inhaled radioaerosols, we have developed new analytical methods for assessing homogeneity of aerosol deposition and time-dependent particle clearance on a pixel-by-pixel basis, and applied them to a therapeutic cystic fibrosis (CF) study. METHODS: At baseline and 1 month after beginning treatment with ivacaftor, a cystic fibrosis transmembrane regulator modulator for CF patients with at least one copy of the G551D mutation (n = 13), initial deposition and subsequent mucociliary clearance (MCC) of radiolabeled particles (99mTechnetium-sulfur colloid, 5 MUm mass median aerodynamic diameter) inhaled under controlled breathing conditions were measured. RESULTS: Improved homogeneity of deposition, that is, decreased areas of higher and lower particle deposition in the lungs, was observed following ivacaftor treatment. The mean number ratio (NR) of pixels with higher deposition, relative to lung size, decreased from 0.14 to 0.09 (p = 0.003) and mean NR of colder pixels decreased from 0.23 to 0.19 (p = 0.004). Particle clearance was also improved following treatment, with mean MCC through 60 minutes equal to 12% versus 24%, without and with treatment, respectively (p = 0.010). Pixel-level analysis of MCC showed that (1) the fraction of pixels clearing >30% at 60 minutes was increased from 0.13 to 0.32 (p = 0.007); and (2) the fraction of pixels clearing <5% at 60 minutes was decreased from 0.54 to 0.37 (p = 0.014), indicating an overall recruitment of more fast-clearing lung regions with ivacaftor treatment. CONCLUSION: These detailed pixel analyses of deposition and clearance homogeneity may supplement traditional methods that use large regions of interest for assessing efficacy and mechanisms of therapeutic intervention in patients with airways disease. PMID- 29035123 TI - Physiopathology and genetics in aspirin-exacerbated respiratory disease. AB - INTRODUCTION: Aspirin-exacerbated respiratory disease (AERD) is a clinical entity characterized by hypersensitivity to aspirin leading to asthma and chronic rhinosinusitis with nasosinusal polyposis. The pathophysiology of the disease involves disruption at the level of arachidonic acid metabolism. Therefore, genetic association studies have been focused on the genes coding this pathway. As other mechanisms involved in the genesis of the disease were elucidated, the corresponding genes were also explored. AIM: To describe the association reported in the literature between gene polymorphisms involved in the pathophysiology or therapeutic processes of AERD. RESULTS: There is a genetic association between polymorphisms of genes involved in the synthesis of proteins related to arachidonic acid metabolism (LTC4S, ALOX5), antigen presentation (HLA), inflammation (IL5, IL17), and aspirin metabolism (CYP2C19). CONCLUSIONS: Genetic association research in AERD has evaluated studies of SNPs in metabolic pathways related to arachidonic acid. Recently, whole genome analysis strategies have allowed the detection of new genetic variants that were previously not considered. Furthermore, these studies have identified SNPs that are associated with inflammatory processes, which could serve as diagnostic markers or predictors of the therapeutic response. PMID- 29035124 TI - Pain and Alcohol Use among Latinos in Primary Care: Examining Rumination as an Explanatory Factor. AB - BACKGROUND: Alcohol is a widely abused substance among Latinos. Yet, little is known regarding factors underlying hazardous drinking in this population. Growing work has linked pain to hazardous drinking, although highly limited work has focused on Latinos. OBJECTIVES: The aim of the current study was to test rumination as an underlying mechanism explaining relations between pain severity and alcohol use among Latinos. METHODS: Data from 252 low-income Latino adults (Mage = 38.7 years, SD = 10.8; 86.1% female) attending a community-based primary health care clinic were available. Participants completed measures of pain, rumination, and alcohol use. Structural equation modeling was used to evaluate the indirect effect of pain severity via rumination on alcohol use. RESULTS: The model displayed good fit to the data. There was a statistically significant indirect effect of pain severity via rumination on alcohol use. Conclusions/Importance: The current findings suggest that rumination may underlie associations of pain and alcohol use among Latinos. Future work in primary care medical settings may benefit from targeting ruminative thinking among Latinos who are experiencing pain to address hazardous drinking. PMID- 29035125 TI - Letter re: Reducing emergency department visits utilizing a primary care asthma specialty clinic in a high risk patient population. PMID- 29035126 TI - Re: Byber et al. in Critical Reviews in Toxicology 2016;46:191-240. PMID- 29035127 TI - Healing potential of nanohydroxyapatite, gelatin, and fibrin-platelet glue combination as tissue engineered scaffolds in radial bone defects of rats. AB - Different biomaterials have been used in orthopedic surgery. Evaluation of biomaterials for bone healing promotion has been a wide area of research of the orthopedic field. Sixty critical size defects of 5 mm long were bilaterally created in the radial diaphysis of 30 rats. The animals were randomly divided into six equal groups as empty defect, autograft, nanohydroxyapatite (nHA), Gelatin (Gel)-nHA, fibrin-platelet glue (FPG)-nHA, and Gel-FPG-nHA groups (n = 10 in each group). Radiographs of each forelimb were taken postoperatively on the 1st day and then at the 28th and 56th days post injury. After 56 days, the rats were euthanized and their harvested healing bone samples were evaluated by histopathology, scanning electron microscopy, and biomechanical testing. All the treated defects demonstrated significantly superior new bone formation, remodeling, and bone tissue volume. Moreover, the defects treated with FPG-nHA showed significantly higher ultimate load, yield load, and stiffness. The Gel-FPG nHA moderately improved bone regeneration that was not close to the autograft in some parameters, whereas FPG-nHA significantly improved bone healing closely comparable with the autograft group in most parameters. In conclusion, although all the nHA-containing scaffolds had some beneficial effects on bone regeneration, the FPG-nHA scaffold was more effective in improving the structural and functional properties of the newly formed bone and was more osteoinductive than the Gel and was comparable to the autograft. Therefore, the FPG can be regarded as a promising option to be used in conjunction with mineral scaffolds for bone tissue engineering. PMID- 29035129 TI - Factors influencing the outcome from ultrasonography-guided fine-needle aspiration of benign thyroid cysts and partially cystic thyroid nodules: A multicenter study. AB - PURPOSE: The effect of ultrasonography (US)-guided fine-needle aspiration (US FNA) for the collapse of benign cystic thyroid nodules is still unclear. This study aimed to assess the positive response rate following US-FNA of the cystic component of thyroid cysts and of partially cystic thyroid nodules (PCTNs), and to evaluate the factors influencing the outcome. METHODS: From June to December 2013, seven radiologists at seven institutions prospectively performed US-FNA on 320 cystic thyroid nodules in 320 patients. Among them, 179 underwent at least one follow-up US examination following US-FNA of the cystic component at each institution by the same radiologist. A variety of factors, including US features of cystic thyroid nodules, the characteristics of the aspirates, and the follow up US findings, were analyzed. RESULTS: Of 179 cystic thyroid nodules, there were 53 thyroid cysts and 126 PCTNs. Of 179 cystic thyroid nodules, no malignancies were detected. On follow-up US, the mean size reduction rate of the cystic component was 31.9%, and 102 out of 179 thyroid nodules (57.0%) were assigned to the response group. On univariate analysis, the degree of aspiration and time interval between US-FNA and the final follow-up US showed the significant differences between the response and no response groups. On multivariate analysis, the only factor that influenced the outcome was the nodule type. The cystic component's positive response rate after simple aspiration was higher in the thyroid cysts than in the PCTNs. CONCLUSIONS: US-FNA may be effective at collapsing the cystic components of benign thyroid cysts and PCTNs. PMID- 29035128 TI - Prospective study of plasma homocysteine, its dietary determinants, and risk of age-related macular degeneration in men. AB - PURPOSE: Cross-sectional and case-control studies generally support a direct association between elevated plasma homocysteine and age-related macular degeneration (AMD), but data from prospective studies are limited. We examined the prospective relation of plasma homocysteine level, its dietary determinants, and risk of AMD in a large cohort of apparently healthy male physicians. METHODS: During a mean follow-up of 11.2 years, we identified 146 incident cases of visually significant AMD (responsible for a reduction of visual acuity to 20/30 or worse), and 146 controls matched for age, smoking status, and time of blood draw. We measured concentration of homocysteine in blood samples collected at baseline using an enzymatic assay. and we assessed dietary intake of B vitamins and related compounds betaine and choline with a food frequency questionnaire administered at baseline. RESULTS: AMD was not associated with plasma level of homocysteine; the multivariable-adjusted odds ratio (OR) of AMD comparing the highest and lowest quartile of homocysteine was 1.09 (95% confidence interval [95% CI]: 0.52-2.31; p for trend = 0.99). However, AMD was inversely associated with quartile of intake of total folate (OR: 0.55; 95% CI: 0.24-1.23; p for trend = 0.08), vitamin B6 from food (OR: 0.39; 95% CI: 0.17-0.88; p for trend = 0.01), and betaine (OR: 0.53; 95% CI: 0.22-1.27; p for trend = 0.048). CONCLUSIONS: These prospective data from a cohort of apparently healthy men do not support a major role for homocysteine in AMD occurrence, but do suggest a possible beneficial role for higher intake of several nutrients involved in homocysteine metabolism. PMID- 29035130 TI - Patterns of serologic markers of hepatitis B virus infection and the risk of transmission among pregnant women in southwestern Nigeria. AB - Hepatitis B virus (HBV) infection is a major health concern in developing countries that has a high morbidity and mortality rate. Vertical transmission of HBV from mother to child has been identified as a major factor leading to chronicity with attendant liver conditions, especially in poor socioeconomic settings. This study aims to evaluate the prevalence of serological HBV markers among pregnant women in Ibadan southwestern Nigeria and to determine the implications for perinatal HBV transmission. This study revealed the presence of varied HBV serological patterns of infection or immunity among pregnant women in Ibadan, Nigeria, and thus the risk of mother to child transmission. PMID- 29035131 TI - RI-002, an intravenous immunoglobulin containing high titer neutralizing antibody to RSV and other respiratory viruses for use in primary immunodeficiency disease and other immune compromised populations. AB - INTRODUCTION: Novel immune globulin (IG) products (RI-002, RI-001) have been designed to provide protection against respiratory syncytial virus (RSV) mediated respiratory illness while at the same time meeting the manufacturing requirements established by FDA for antibody supplementation in immunocompromised subjects. Areas covered: This review covers the manufacture and development of both RI-001 and RI-002, including the selection of plasma donors for IG preparation with high titers of anti-RSV antibody, in vitro, and preclinical data in the cotton rat model S. hispidus, and clinical trials including Phase II and compassionate use studies of RI-001 and a multi-center, pivotal Phase III study of RI-002 in PIDD patients. Expert commentary: The data demonstrate that RI-002 is efficacious in the prevention and treatment of RSV in preclinical normal and immune suppressed animal models and is safe and efficacious in the treatment of patients with various forms of primary immunodeficiency disease (PIDD). This product offers potential advantages over other available IG's for prophylaxis in immunocompromised patients requiring polyclonal immunoglobulin supplementation because of its unique antibody composition. In addition to its enhanced neutralizing anti-RSV activity and its polyclonal IG composition, there is preclinical data to support the use of RI-002 for humoral protection against other respiratory pathogens. PMID- 29035132 TI - Hybrid Lipid/Polymer Nanoparticles for Pulmonary Delivery of siRNA: Development and Fate Upon In Vitro Deposition on the Human Epithelial Airway Barrier. AB - BACKGROUND: Nowadays, the downregulation of genes involved in the pathogenesis of severe lung diseases through local siRNA delivery appears an interesting therapeutic approach. In this study, we propose novel hybrid lipid-polymer nanoparticles (hNPs) consisting of poly(lactic-co-glycolic) acid (PLGA) and dipalmitoyl phosphatidylcholine (DPPC) as siRNA inhalation system. METHODS: A panel of DPPC/PLGA hNPs was prepared by emulsion/solvent diffusion and fully characterized. A combination of model siRNAs against the sodium transepithelial channel (ENaC) was entrapped in optimized hNPs comprising or not poly(ethylenimine) (PEI) as third component. siRNA-loaded hNPs were characterized for encapsulation efficiency, release kinetics, aerodynamic properties, and stability in artificial mucus (AM). The fate and cytotoxicity of hNPs upon aerosolization on a triple cell co-culture model (TCCC) mimicking human epithelial airway barrier were assessed. Finally, the effect of siRNA-loaded hNPs on ENaC protein expression at 72 hours was evaluated in A549 cells. RESULTS: Optimized muco-inert hNPs encapsulating model siRNA with high efficiency were produced. The developed hNPs displayed a hydrodynamic diameter of ~150 nm, a low polydispersity index, a negative zeta potential close to -25 mV, and a peculiar triphasic siRNA release lasting for 5 days, which slowed down in the presence of PEI. siRNA formulations showed optimal in vitro aerosol performance after delivery with a vibrating mesh nebulizer. Furthermore, small-angle X-ray scattering analyses highlighted an excellent stability upon incubation with AM, confirming the potential of hNPs for direct aerosolization on mucus-lined airways. Studies in TCCC confirmed that fluorescent hNPs are internalized inside airway epithelial cells and do not exert any cytotoxic or acute proinflammatory effect. Finally, a prolonged inhibition of ENaC protein expression was observed in A549 cells upon treatment with siRNA-loaded hNPs. CONCLUSIONS: Results demonstrate the great potential of hNPs as carriers for pulmonary delivery of siRNA, prompting toward investigation of their therapeutic effectiveness in severe lung diseases. PMID- 29035133 TI - Genetic Polymorphism and Bottleneck Analysis of Balkhi, Hashtnagri, and Michni Sheep Populations Using Microsatellite Markers. AB - Pakistan is rich in sheep genetic resources. Balkhi, Hashtnagri, and Michni are neighboring sheep populations found in Khyber Pakhtunkhwa province of Pakistan. In this study, we analyzed the genetic structures and bottleneck incidents within these sheep populations using 31 microsatellite DNA markers. Total numbers of 116, 100, and 95 alleles, with average numbers of 3.20, 3.26, and 3.74 alleles per locus were observed, respectively, in Balkhi, Hashtnagri, and Michni population. Mean observed heterozygosity was 0.402 in Balkhi, 0.416 in Hashtnagri, and 0.522 in Michni population. All the three sheep populations showed significantly high inbreeding. Michni population was found to be in mutation drift equilibrium, showing the absence of genetic bottleneck. The data of Balkhi and Hashtnagri indicated the presence of genetic bottleneck in these populations. These results suggest a moderate level of genetic diversity within Michni population that may be useful for breed improvement programs. Hashtnagri and Balkhi populations having low within breed genetic variability may contain some valuable characteristics that need to be conserved. PMID- 29035134 TI - Hand-assisted laparoscopic versus laparoscopic nephrectomy as outpatient procedures: a prospective randomized study. AB - OBJECTIVES: The aims of this study were to discuss the hand-assisted laparoscopic nephrectomy (HALNo) outpatient procedure and compare it to the transperitoneal laparoscopic nephrectomy (LNo) outpatient procedure. MATERIALS AND METHODS: A prospective, randomized study of 30 patients with renal tumor who were recruited between November 2014 and February 2016 was performed. The primary endpoint of the study was length of hospital stay (LOS). RESULTS: Fifteen patients received HALNo and 15 received LNo, with a male to female ratio of 2:1. The mean age was 60 years for HALNo and 64 years for LNo (p = 0.62). All patients were discharged within 6 h after the operation. The mean +/- SD operation time was 65 +/- 24 min [95% confidence limits (CL) 51-79] and 69 +/- 24 min (95% CL 56-83) for HALNo and LNo, respectively (p = 0.95). The mean time for which patients stayed at the postoperative care unit was 85 +/- 53 min (95% CL 44-126) and 91 +/- 66 min (95% CL 54-127) for HALNo and LNo, respectively (p = 0.14). The mean LOS was 220 +/- 96 min (95% CL 155-284) and 272 +/- 80 min (95% CL 224-320) for HALNo and LNo, respectively (p = 0.53). CONCLUSION: HALNo, when performed as an outpatient procedure, is safe and feasible for a well-informed, well-educated and well selected patient group, and is comparable to LNo regarding postoperative LOS. PMID- 29035135 TI - Draft De Novo Genome Sequence of Agapornis roseicollis for Application in Avian Breeding. AB - In aviculture, lovebirds are considered one of the most popular birds to keep. This African parakeet is known for its range of plumage colors and ease to tame. Plumage variation is the most important price-determining trait of these birds, and also the main selection criterion for breeders. Currently, no genetic screening tests for traits of economic importance or to confirm pedigree data are available for any of the nine lovebird species. As a starting point to develop these tests, the de novo genome of Agapornis roseicollis (rosy-faced lovebird) was sequenced, assembled, and annotated. Sequencing was done on the Illumina HiSeq 2000 platform and the assembly was performed using SOAPdenovo v2.04. The genome was found to be 1.1 Gb in size and 16,044 genes were identified and annotated. This compared well with other previously sequenced avian genomes, such as the chicken, zebra finch, and budgerigar. To assess genome completeness, the number of benchmarking universal single-copy orthologs were identified in the genome. This was compared to other previously assembled avian genomes and the results indicated that the genome will be useful in the development of genetic screening tests to aid lovebird breeders in selecting breeding pairs. PMID- 29035136 TI - Functional Identification of Allograft Inflammatory Factor 1-Like Gene in Luning Chicken. AB - Allograft inflammatory factor-1 (AIF-1) is an inflammation-related protein mainly produced by immune cells, such as monocyte/macrophages and activated T lymphocytes. It is essential for the survival and proinflammatory activity of immune cells. However, the function of AIF-1 in chicken still has not been defined. In the present study, AIF-1-like (AIF1L) gene was identified in Luning chicken. Bioinformatics analysis revealed that the molecular weight of the chicken AIF-1 protein was 16290.8 Da. AIF1L contained a Ca2+ binding EF hand and could interact with actin filament. Its transcript was found in all tested tissues including spleen, brain, heart, kidney, liver, thymus, bursa of Fabricius, lung, and a relative low-level expression was detected in leg muscle. Furthermore, AIF1L expression in peripheral blood lymphocyte was depressed in a dose-dependent manner with cadmium exposure and peripheral blood lymphocyte viability decrease displayed a similar pattern with AIF1L expression. The results indicated that newly identified chicken AIF1L might be associated with lymphocyte viability. PMID- 29035137 TI - A review of mental health treatment dropout by ethnic minority youth. AB - A large proportion of treatments in youth mental health care are prematurely terminated by the patient. Treatment dropout can have severe consequences. Since ethnic minority youth are treated less often for mental disorders than other youth, it is important to analyse their risk for dropout and to determine if there are ethnicity-specific determinants. This review aimed to provide an overview of the findings from empirical studies on child and adolescent therapy dropout by ethnic minority and to determine if there were ethnicity-specific dropout determinants. An extensive literature search was performed to locate relevant journal articles. Identified articles were inspected for relevant references and these articles were then included in the meta-analysis. A total of 27 studies were accepted for analysis. The results showed that ethnic minority patients have a higher risk of treatment dropout than ethnic majority patients and that dropout rates are ethnically specific. Several differences in dropout predictors among the ethnic groups were found. In spite of diverse results, review limitations, and the lack of several key variables in the available research, some clinical recommendations are made. The review indicates that to prevent dropout, therapists should pay attention to variables such as ethnic background, therapist-patient ethnic match, and the quality of the therapeutic relationship. PMID- 29035138 TI - Body weight predicts Nicotinamide N-Methyltransferase activity in mouse fat. AB - AIM: Nicotinamide N-methyltransferase (NNMT) is a novel regulator of energy homeostasis in adipose tissue. NNMT expression is higher in obese mice than in lean mice, and NNMT knockdown prevents diet-induced obesity. Little is known about the regulation of enzyme activity during the development of obesity. The aim of this study was to analyze NNMT activity in tissues of mice with incipient and established obesity. METHODS: A fluorescence-based, sensitive, low-volume, high-throughput method was developed to assay NNMT activity. C57BL/6 mice were fed a high-fat diet for 4 weeks (incipient obesity) and for 12 weeks (established obesity). Tissues and serum were harvested and analyzed. RESULTS: NNMT activity was highest in subcutaneous white fat (55.0 uU/mg), followed by epididymal white fat (35.6 uU/mg), brown adipose tissue (7.8 uU/mg), liver (7.6 uU/mg), and lung (7.3 uU/mg). Little activity was detected in heart, skeletal muscle, and kidney. No activity was found in serum samples. Body weight predicted NNMT activity in white fat, but not in brown fat or any other tissue, and only in incipient obesity. With established obesity, this association was lost. CONCLUSIONS: As obesity develops, body weight predicts NNMT activity in white adipose tissue, but not in any other tissue, consistent with a specific role of adipose-tissue NNMT in the regulation of body weight. PMID- 29035139 TI - Novel 17-bp Deletion in KDM1B Gene is Significantly Associated with Testis Weight in Male Piglet. AB - Lysine-specific demethylase 1B (KDM1B) which plays a crucial role in regulating methylation status at lysine 4 of histone 3 is important for male fertility. The aim of this study was to explore the KDM1B mRNA expression profiles and to identify novel genetic variants of the pig KDM1B gene, as well as to determine the association between these variants and testis measurement traits in male piglets. The KDM1B mRNA expression profiles indicated that this gene widely expressed in all tested organs. In addition, a novel 17-bp deletion (NC_010449.4:g.31142_31159delCATGGATAGTAGTTGCT) within KDM1B gene was found. Notably, this deletion sequence was inconsistent with the prediction by NCBI. Association analysis revealed that the 17-bp indel locus was significantly associated with the testis weight in 40-day-old Large White pigs (P < 0.05). Furthermore, through bioinformatics analysis, transcriptional factor heat shock factor-1 could combine the 17-bp sequence. These results not only extend the genetic variations of the pig KDM1B gene but also contribute to implementing marker-assisted selection in pig breeding. PMID- 29035140 TI - Cytoskeleton Genes Expression and Survival Rate Comparison Between Immature and Mature Yak Oocyte After OPS Vitrification. AB - This study was conducted to investigate the effect of vitrification on survival rate and cytoskeleton gene expression during yak oocyte maturation. The yak oocytes were incubated for 0 h [germinal vesicle (GV) stage] and in vitro matured for 24 h [metaphase II (MII) stage] to obtain immature and mature oocytes. Survival rate after vitrification were compared between immature and mature yak oocytes and cytoskeleton-related genes [cytokeratin 8 (CK8), beta-actin (ACTB), and gap junction protein, alpha 1 (GJA1)] were tested by real-time PCR. Our results showed that MII stage survival rate after open pulled straw vitrification (35.60%) is significantly higher than GV stage (25.90%) oocytes. Furthermore, expression of CK8, ACTB, and GJA1 in MII stage oocytes are also significantly higher than GV stage oocytes. In conclusion, our study demonstrated that higher expression of GJA1, CK8, and ACTB in vitrify-warmed MII stage oocytes when compared with GV stage oocytes and such discrepancy might result in higher survival rate in vitrify-warmed MII stage oocytes. PMID- 29035141 TI - Usual Care for Maltreatment-Related Pediatric Posttraumatic Stress Disorder in Germany. AB - Child maltreatment represents a major risk factor for the development of emotional and behavioral problems, especially posttraumatic stress disorder (PTSD). While effective trauma-focused treatments are available, little is known about the usual mental healthcare for abused youths in Germany. The present study compared the utilization of mental healthcare in abused youths who had developed a PTSD (N = 95) with a group presenting other mental disorders (N = 146). Semistructured interviews were used to assess maltreatment histories, current mental health, and healthcare utilization. In addition, potential child factors associated with access to mental healthcare (age and level of functioning) were examined. Results showed that 65 % of both diagnostic groups currently fail to use any mental healthcare service. Of the participants with PTSD, 43 (45 %) had never received any mental healthcare intervention. Investigations on potential barriers are necessary to close the huge gap between clinical services and evidence-based, trauma-focused interventions. PMID- 29035142 TI - Distribution of the CD4 Alleles in Sus scrofa Demonstrates the Genetic Profiles of Western Breeds and Miniature Pigs. AB - Widely used antipig CD4 monoclonal antibodies (mAbs) fail to recognize CD4 alleles characteristic of miniature pig lines such as the National Institutes of Health (NIH) miniature pigs and microminipigs. We surveyed polymorphisms in the coding sequence of the porcine CD4 gene among Western and Oriental pig breeds and Japanese wild boars and investigated their distribution. Of the 13 alleles that we identified among the 47 animals, 2 in group I and 3 in group II were found exclusively in Western breed pigs. Group IV alleles, which included mAb nonbinding alleles, were found frequently in Oriental breed pigs, suggesting that the mAb-nonbinding allele arose from the gene pool of Oriental pigs. Group IV alleles were also found in Duroc and Large White pigs, suggesting genetic inflow from Oriental pig breeds into Western breeds. Comparison of the CD4 sequences of species in Cetartiodactyla suggested that the group IV alleles in Sus scrofa occurred before the divergence of this species from the other artiodactyls. The different antibody specificities of the various CD4 alleles may facilitate the discrimination of T-cell populations in transplantation studies using miniature pigs. The significance of the preservation of CD4 polymorphisms to immune function in pigs warrants further investigation. PMID- 29035143 TI - The contribution of glyphosate to agriculture and potential impact of restrictions on use at the global level. AB - This study assesses the potential economic and environmental impacts that would arise if restrictions on glyphosate use resulted in the world no longer planting genetically modified herbicide tolerant (GM HT) crops. 'First round' impacts are the loss of farm level and aggregate impacts associated with the widespread use of GM HT crops (tolerant to glyphosate). There would be an annual loss of global farm income gains of $6.76 billion and lower levels of global soybean, corn and canola production equal to 18.6 million tonnes, 3.1 million tonnes and 1.44 million tonnes respectively. There would be an annual environmental loss associated with a net increase in the use of herbicides of 8.2 million kg of herbicide active ingredient (+1.7%), and a larger net negative environmental impact, as measured by the environmental impact quotient (EIQ 11 Kovach J et al1. ) indicator of a 12.4%. Also, there would be additional carbon emissions arising from increased fuel usage and decreased soil carbon sequestration, equal to the equivalent of adding 11.77 million cars to the roads. Global welfare impacts based on these farm level impacts (identified through use of the Computable General Equilibrium (CGE) model GTAP-BIO) point to global production of soybeans and rapeseed falling by 3.7% and 0.7% respectively, partially offset by increases in other oilseeds (notably palm oil). World prices of all grains, oilseeds and sugar are expected to rise, especially soybeans (+5.4%) and rapeseed (+2%). The welfare impacts are mostly negative, with global welfare falling by $7,408 million per year. Land use changes will arise, with an additional cropping area of 762,000 ha, of which 53% derives from new land brought into cropping agriculture, including 167,000 of deforestation. These land use changes are likely to induce the generation of an additional 234,000 million kg of carbon dioxide emissions. PMID- 29035144 TI - Risk factors for multiple suicide attempts among Roma in Hungary. AB - In recent years, suicide rates in Hungary have been among the highest in the European Union. Attempted suicide rates in the Roma population are 2-3 times higher than in the non-Roma population. Since individuals making multiple attempts have a higher pro-bability of eventual death by suicide, and there are limited data on suicidal behaviour of the Roma population, the aim of this study was to explore the sociodemographic and psychological background factors of multiple suicide attempts in the Hungarian Roma population. Semistructured interviews were conducted with 150 individuals admitted to hospital toxicology departments, who made suicide attempts by deliberate self-poisoning, 65 of whom were multiple attempters. Detailed information regarding the current attempt and previous suicidal acts was recorded. Patients also completed the Shortened Beck Depression, the Beck Hopelessness Questionnaire, and the Social Support Questionnaire. Independent samples t-tests were used to evaluate differences in psychological variables between the Roma ( N = 90) and non-Roma ( N = 60) groups. Stepwise linear regression and odds ratios analyses were performed to identify potential background factors of multiple suicide attempts. There was a significantly higher level of previous suicidal events among the Roma in the sample population (3.53 vs. 0.84, p < .001). Roma ethnicity was found to be a strong predictor of multiple suicide attempts. Current major depression, hopelessness, and diagnosed mood disorder were identified as significant risk factors of repeated attempts. Smoking (OR = 5.4), family history of suicide (OR = 4.9), and long-term unemployment (OR = 4.6) were additional risk factors among Roma patients. A thorough understanding of the ethnicity-specific risk factors for multiple suicide attempts could facilitate the development of effective intervention and postvention programmes. PMID- 29035145 TI - Reflecting on how we remember the personal past: missing components in the study of memory appraisal and theoretical implications. AB - The current paper offers a selective review of the study of memory appraisal, focusing on recollections of the personal past, with the goal to bring attention to a missing component in this study. To date, memory appraisal studies have concentrated on participants' assessments of the content of their personal recollections (e.g., their perceptual detail and story-like feel), including beliefs about the accuracy of that content. Participants' assessments of reflection processes accompanying their recollections (e.g., a sense of piecing together recollection fragments) have yet to be extensively examined. The lack of information on process-based appraisals is related to prior studies' procedural constraints (e.g., kinds of cue prompts and their timing, minimal opportunities for reflection). Reasons for addressing this missing component provide the central themes of the paper. The reasons emerge from the analysis of autobiographical cueing studies, including integration of narrative research studies and autobiographical works. The analysis leads to suggestions for future research involving the use of personal narratives that are intended to address critiques of reconstruction accounts and unresolved questions in the study of memory appraisal. PMID- 29035146 TI - Moral and legal dilemmas in the policing of protest and other major public events. PMID- 29035147 TI - Isolation, production, and characterization of a new single chain anti-idiotypic antibody against benzo[a]pyrene. AB - : Polycyclic aromatic hydrocarbons are chemical carcinogens which could induce the development of human cancers. Anti-idiotypic antibodies against benzo[a]pyrene (BP) are perspective for human cancer immunoprophylaxis and tumor immunodiagnostic techniques. The purpose of this study was to isolate anti idiotypic antibodies against BP from human lymphocytes naive phage library. The anti-idiotypic antibody, named B5, was selected. Analysis of the nucleotide and amino acid sequences B5 showed no similarity to known protein databases antibodies. B5 bound idiotypic antibodies against BP in direct and competitive ELISA. It was suggested that the B5 carried an immunological image of BP and bound the idiotypic antibodies against BP. ABBREVIATIONS: scFv: single-chain variable fragment; Ab1: idiotypic antibodies; Ab2: anti-idiotypic antibodies; CBD: cellulose binding domain; BSA: bovine serum albumin; PBS: phosphate buffer; BP-BSA: benzo[a]pyrene-BSA conjugate; Cr-BSA: chrysene-BSA conjugate; Py-BSA: pyrene-BSA conjugate; Ac-BSA: anthracene-BSA conjugate; Ba-BSA: benz[a]anthracene BSA conjugate; PAH: polycyclic aromatic hydrocarbons; pSh: mouse idiotypic single chain variable fragment against benzo[a]pyrene; T72: human idiotypic single-chain variable fragment against benzo[a]pyrene. PMID- 29035150 TI - Enhancement of carotenoids and lipids production by oleaginous red yeast Sporidiobolus pararoseus KM281507. AB - Bioconversion of biodiesel-derived crude glycerol into carotenoids and lipids was investigated by a microbial conversion of an oleaginous red yeast Sporidiobolus pararoseus KM281507. The methanol content in crude glycerol (0.5%, w/v) did not show a significant effect on biomass production by strain KM281507. However, demethanolized crude glycerol significantly supported the production of biomass (8.64 +/- 0.13 g/L), lipids (2.92 +/- 0.03 g/L), beta-carotene (15.76 +/- 0.85 mg/L), and total carotenoids (33.67 +/- 1.28 mg/L). The optimal conditions suggested by central composite design were crude glycerol concentration (55.04 g/L), initial pH of medium (pH 5.63) and cultivation temperature (24.01 degrees C). Under these conditions, the production of biomass, lipids, beta-carotene, and total carotenoids were elevated up to 8.83 +/- 0.05, 4.00 +/- 0.06 g/L, 27.41 +/- 0.20, and 53.70 +/- 0.48 mg/L, respectively. Moreover, an addition of olive oil (0.5 - 2.0%) dramatically increased the production of biomass (14.47 +/- 0.15 g/L), lipids (6.40 +/- 0.09 g/L), beta-carotene (54.43 +/- 0.95 mg/L), and total carotenoids (70.92 +/- 0.51 mg/L). The oleic acid content in lipids was also increased to 75.1% (w/w) of total fatty acids, indicating a good potential to be an alternative biodiesel feedstock. Meanwhile, the beta-carotene content in total carotenoids was increased to 76.7% (w/w). Hence, strain KM281507 could be a good potential source of renewable biodiesel feedstock and natural carotenoids. PMID- 29035148 TI - Treatment of pulmonary fibrosis with siRNA against a collagen-specific chaperone HSP47 in vitamin A-coupled liposomes. AB - BACKGROUND: Pulmonary fibrosis is a life-threatening pathological state of progressive interstitial lung diseases, such as idiopathic pulmonary fibrosis. Myofibroblasts are known to play a critical role in the pathogenesis of pulmonary fibrosis. This study aimed to evaluate the inhibitory effect of a small interfering RNA (siRNA) on a collagen-specific chaperone heat shock protein 47 (HSP47). The siRNA was preferentially delivered to myofibroblasts in a bleomycin (BLM)-induced pulmonary fibrosis rat model using siRNA against HSP47, encapsulated in a vitamin A-coupled liposome (VA-lip-siRNA HSP47). METHODS AND RESULTS: Male Sprague-Dawley rats were treated with an intratracheal injection of BLM or phosphate buffered saline followed by an intravenous injection of VA-lip siRNA HSP47 three times per week under preventive administration schedules from day 1 to day 21 and therapeutic administration schedules from day 15 to day 35. The expression of HSP47 after the treatment was assessed by immunoblotting. The specific delivery of VA-lip-siRNA HSP47 conjugated with 6'-carboxyfluoresce into myofibroblasts was examined by immunofluorescence staining. The effect of VA-lip siRNA HSP47 on fibrosis was analyzed by morphological and biochemical methods. Preferential delivery of VA-lip-siRNA HSP47 to myofibroblasts in fibrotic areas in BLM-treated rats was verified by immunofluorescence staining. Treatment of VA lip-siRNA HSP47 clearly suppressed HSP47 expression and induced apoptosis of myofibroblasts in the lung of BLM-treated rats. Hydroxyproline levels and inflammatory cytokines in the lungs, and the number of inflammatory cells in the bronchial alveolar lavage of BLM-treated rats were significantly suppressed by the treatment. Morphological assessment showed that VA-lip-siRNA HSP47 also significantly improved the morphological pulmonary fibrosis of BLM-treated rats in both preventive and therapeutic schedules. CONCLUSIONS: These results suggest that VA-lip-siRNA HSP47 improves pulmonary fibrosis in not only preventive, but also therapeutic schedules, and thus, this drug delivery system should provide a novel therapy for refractory pulmonary fibrosis. PMID- 29035152 TI - Empirically derived classes of eating pathology in male and female college students. AB - BACKGROUND: The empirical structure of eating disorder (ED) pathology has often been studied in female, clinical samples, leaving questions about the structure of ED pathology in males and nonclinical samples. METHOD: A latent class analysis was performed on data combined from two different studies (N = 1,751) using the behavioral items in the Eating Disorder Examination Questionnaire (EDE-Q; binge eating, self-induced vomiting, laxative use, and excessive exercise), with the addition of an item representing restraint. Validation analyses examined weight, shape, and eating concern among the classes. RESULTS: Three similar classes emerged for both the men and women's models: very low ED behaviors, binge eating, and high ED behaviors. DISCUSSION: These results suggest that binge eating occurs within the context of lower symptom and higher symptom presentations, and that the empirical structure of ED symptoms does not differ in men and women in the nonclinical population. Further research is needed to clarify whether ED phenotypes differ in men and women. PMID- 29035153 TI - Acute and Chronic Kidney Injury in a Non-Human Primate Model of Partial-Body Irradiation with Bone Marrow Sparing. AB - The development of medical countermeasures against acute and delayed multi-organ injury requires animal models predictive of the human response to radiation and its treatment. Late chronic injury is a well-known feature of radiation nephropathy, but acute kidney injury has not been reported in an appropriate animal model. We have established a single-fraction partial-body irradiation model with minimal marrow sparing in non-human primates. Subject-based medical management was used including parenteral fluids according to prospective morbidity criteria. We show herein that 10 or 11 Gy exposures caused both acute and chronic kidney injury. Acute and chronic kidney injury appear to be dose independent between 10 and 11 Gy. Acute kidney injury was identified during the first 50 days postirradiation and appeared to resolve before the occurrence of chronic kidney injury, which was progressively more severe up to 180 days postirradiation, which was the end of the study. These findings show that mitigation of the acute radiation syndrome by medical management will unmask delayed late effects that occur months after partial-body irradiation. They further emphasize that both acute and chronic changes in kidney function must be taken into account in the use and timing of mitigators and medical management for acute radiation syndrome and delayed effects of acute radiation exposure (DEARE). PMID- 29035154 TI - Ethnographic research in immigrant-specific drug abuse recovery houses. AB - Access to study populations is a major concern for drug use and treatment researchers. Spaces related to drug use and treatment have varying levels of researcher accessibility based on several issues, including legality, public versus private settings, and insider/outsider status. Ethnographic research methods are indispensable for gaining and maintaining access to hidden or "hard to-reach" populations. Here, we discuss our long-term ethnographic research on drug abuse recovery houses created by and for Latino migrants and immigrants in Northern California. We take our field work experiences as a case study to examine the problem of researcher access and how ethnographic strategies can be successfully applied to address it, focusing especially on issues of entree, building rapport, and navigating field-specific challenges related to legality, public/private settings, and insider/outsider status. We conclude that continued funding support for ethnography is essential for promoting health disparities research focused on diverse populations in recovery from substance use disorders. PMID- 29035155 TI - Effects of social and spatial contexts on young latinas' methamphetamine use initiation. AB - In this article, we examine methamphetamine (meth) use initiation as influenced by Latinas' social positions within institutions (e.g., family and economy). We conducted ethnographic fieldwork in five women's residential substance use treatment facilities in Los Angeles County with women who considered meth to be their primary drug of choice. Using an urban ethnographic framing, we demonstrate the effects of low-income young Latinas' spatial- and social-context rendered vulnerability to abuse and neglect, and the resulting emotional distress, on meth use initiation. When considering pathways to substance use intervention for vulnerable Latina girls and women, clinicians, researchers, and policy makers need to understand substance use pathways as dynamic processes to cope with psychosocial stress while living in communities with easy access to illicit substances such as methamphetamine. PMID- 29035156 TI - CD4+ T Memory Stem Cells Correlate with Disease Progression in Chronically HIV-1 Infected Patients. AB - Recently identified T memory stem (Tscm) cells have stem-cell-like properties, including long lifespan, self-renewal capacity, and multipotency to differentiate into other memory T cell types. In the study of simian immunodeficiency virus (SIV) infection, selective depletion of CCR5+CD4+ Tscm cells and the high proliferation rate of these cells are believed to be responsible for the pathogenesis of SIV-infected rhesus macaques. Here, we conducted a cohort study to investigate the influence of chronic human immunodeficiency virus (HIV)-1 infection on CD4+ Tscm cell homeostasis, and the effect of antiretroviral therapy (ART) on CD4+ Tscm cells. Chronic HIV-1 infection resulted in a decrease of the CD4+ Tscm cell proportion in HIV-1 patients. The decreased number of CD4+ Tscm cells in HIV-1 patients correlated positively with that of circulating CD4+ T cells. Further, the depletion of CD4+ Tscm cells was inversely correlated with an increased level of T cell immune activation during chronic HIV-1 infection. Prolonged ART recovered the CD4+ Tscm cells, and the dynamic change of CD4+ Tscm cells was in parallel with CD4+ T cell restoration and a decrease in the level of T cell immune activation. We propose that the abnormity of CD4+ Tscm cells may contribute to the pathogenesis and disease progression in HIV-1-infected individuals. PMID- 29035157 TI - Evaluation of serum levels of C3 and C4 complement factors in patients with beta thalassemia major in Khuzestan Province, Southwest Iran. AB - BACKGROUND AND OBJECTIVES: Thalassemia syndrome is the most common genetic disorder in the world and infection is the second cause of death in these patients. Measurement of serum C3 and C4 complement factors in serum was done in 60 patients with beta thalassemia major in comparison with 30 healthy subjects as control group. MATERIALS AND METHODS: The serum level of C3 and C4 complement factors in 60 patients with beta thalassemia major who were randomly selected from among the patients referred to Shafa Hospital of Ahvaz was evaluated and compared with 30 samples from healthy individuals with no history of recent infectious or autoimmune diseases. It should be noted that single-radial immunodiffusion assay was used in this study. RESULTS: This study has shown a significant reduction in serum levels of C3 and C4 in patients compared to controls (P value < 0.05). DISCUSSION: Decreased synthesis or increased consumption of complement factors in patients receiving multiple blood transfusions might lead to continuous contact between the immune system and various antigens, causing nonstop use of complement factors, recurrent infections, changes in parameters of the immune system due to iron overload as well as exposure to infectious factors such as HBV, HCV, HIV, and HTLV through blood transfusion. PMID- 29035158 TI - Humanizing folk devils using ethnography. AB - The sociological concepts of the "moral panic" and the deviant "folk devil" apply to the drug panics in the United States over methamphetamine, heroin, and crack cocaine. Mothers or pregnant women who smoke crack cocaine, and their babies, are assigned exaggerated "demonic" attributes that result in stigma and societal rejection. Otherwise, ethnographic studies of drug users demonstrate realities that are other than what might be considered were one to merely look at their use and the consequences. These considerations are examined with respect to the image of folk devils, methadone program attendees, smokers of "blunts," opium den habitues, and others grouped together as negative influences as a result of their drug habits. PMID- 29035159 TI - Unintended consequences of local alcohol restrictions in rural Alaska. AB - Since 1981, Alaskans have had the ability to enact by referendum local restrictions in alcohol sales, importation, and possession, known as "local options." Intended to empower rural communities to reduce alcohol abuse and associated violence and trauma, the "local option" laws have led to unintended consequences as individuals in alcohol-restricted communities seek intoxication from both legal and illegal sources of alcohol. Based on 68 interviews with 72 community members in eight rural sites in Alaska, this article examines these unintended consequences of local options restrictions and provides context to the challenges rural communities face in implementing alcohol policies. PMID- 29035161 TI - A Concept Analysis of Bear Identity. AB - Members of the bear community, a gay male subculture, offer insight into the development and purveyance of a gay subculture. Using Walker and Avant's concept analysis methodology, concept exploration and a subsequent concept analysis of the term bear identity, using existing literature, was conducted to obtain a better understanding of the meanings of the term bear identity. CINAHL, Psycinfo, Pubmed, Medline, LGBT Life, and ProQuest were employed to identify and examine the data surrounding the concept of bear identity. After conducting the literature review, an analysis of bear identity emerged that explores antecedents, attributes, and possible consequences related to bear identification. Lastly, implications for theory, research, and practice are discussed. PMID- 29035160 TI - Towards malaria control and elimination in Ghana: challenges and decision making tools to guide planning. AB - Ghana is classified as being in the malaria control phase, according to the global malaria elimination program. With many years of policy development and control interventions, malaria specific mortality among children less than 5 years old has declined from 14.4% in 2000 to 0.6% in 2012. However, the same level of success has not been achieved with malaria morbidity. The recently adopted 2015-2020 Ghana strategic action plan aims to reduce the burden of malaria by 75.0%. Planning and policy development has always been guided by evidence from field studies, and mathematical models that are able to investigate malaria transmission dynamics have not played a significant role in supporting policy development. The objectives of this study are to describe the malaria situation in Ghana and give a brief account of how mathematical modelling techniques could support a more informed malaria control effort in the Ghanaian context. A review is carried out of some mathematical models investigating the dynamics of malaria transmission in sub-Saharan African countries, including Ghana. The applications of these models are then discussed, considering the gaps that still remain in Ghana for which further mathematical model development could be supportive. Because of the collaborative approach adopted in their development, some model examples Ghana could benefit from are also discussed. Collaboration between malaria control experts and modellers will allow for more appropriate mathematical models to be developed. Packaging these models with user friendly interfaces and making them available at various levels of malaria control management could help provide the decision making tools needed for planning and a platform for monitoring and evaluation of interventions in Ghana. PMID- 29035162 TI - Effects of osmolytes on stable UUCG tetraloops and their preference for a CG closing base pair. AB - Osmolytes have the potential to affect the stability of secondary structure motifs and alter preferences for conserved nucleic acid sequences in the cell. To contribute to the understanding of the in vivo function of RNA we observed the effects of different classes of osmolytes on the UNCG tetraloop motif. UNCG tetraloops are the most common and stable of the RNA tetraloops and are nucleation sites for RNA folding. They also have a significant thermodynamic preference for a CG closing base pair. The thermal denaturation of model hairpins containing UUCG loops was monitored using UV-Vis spectroscopy in the presence of osmolytes with different chemical properties. Interestingly, all of the osmolytes tested destabilized the hairpins, but all had little effect on the thermodynamic preference for a CG base pair, except for polyethylene glycol (PEG) 200. PEG 200 destabilized the loop with the CG closing base pair relative to the loop with a GC closing base pair. The destabilization was linear with increasing concentrations of PEG 200, and the slope of this relationship was not perturbed by changes in the hairpin stem outside of the closing pair. This result suggests that in the presence of PEG 200, the UUCG loop with a GC closing base pair may retain some preferential interactions with the cosolute that are lost in the presence of the CG closing base pair. These results reveal that relatively small structural changes may influence how osmolytes tune the stability, and thus the function of a secondary structure motif in vivo. PMID- 29035163 TI - Uptake and correlates of cervical cancer screening among HIV-infected women attending HIV care in Uganda. AB - BACKGROUND: Human immunodeficiency virus (HIV)-infected women are at high risk of cervical cancer. OBJECTIVE: This study assessed uptake and correlates of cervical screening among HIV-infected women in care in Uganda. METHODS: A nationally representative cross-sectional survey of HIV-infected women in care was conducted from August to November 2016. Structured interviews were conducted with 5198 women aged 15-49 years, from 245 HIV clinics. Knowledge and uptake of cervical screening and human papillomavirus (HPV) vaccination were determined. Correlates of cervical screening were assessed with modified Poisson regression to obtain prevalence ratios (PRs) using Stata version 12.0. RESULTS: Overall, 94.0% (n = 4858) had ever heard of cervical screening and 66% (n = 3732) knew a screening site. However, 47.4% (n = 2302) did not know the schedule for screening and 50% (n = 2409) did not know the symptoms of cervical cancer. One-third (33.7%; n = 1719) rated their risk of cervical cancer as low. Uptake of screening was 30.3% (n = 1561). Women who had never been screened cited lack of information (29.6%; n = 1059) and no time (25.5%; n = 913) as the main reasons. Increased likelihood of screening was associated with receipt of HIV care at a level II health center [adj. PR 1.89, 95% confidence interval (CI) 1.29-2.76] and private facilities (adj. PR 1.68, 95% CI 1.16-3.21), knowledge of cervical screening (adj. PR 2.19, 95% CI 1.78-2.70), where to go for screening (adj. PR 6.47, 95% CI 3.69-11.36), and low perception of risk (adj. PR 1.52, 95% CI 1.14-2.03). HPV vaccination was 2%. CONCLUSIONS: Cervical screening and HPV vaccination uptake were very low among HIV-infected women in care in Uganda. Improved knowledge of cervical screening schedules and sites, and addressing fears and risk perception may increase uptake of cervical screening in this vulnerable population. PMID- 29035165 TI - Development of highly sensitive cell-based AKT kinase ELISA for monitoring PI3K beta activity and compound efficacy. AB - Phosphatidylinositol-3 kinase (PI3K) pathway regulates multiple cellular functions involving cell survival, growth, motility proliferation, apoptosis, and adhesion. These are deregulated in various diseases such as cancer, atherosclerosis, and inflammation. PI3Ks phosphorylate phosphatidylinositol 4,5 biphosphate (PIP2) yielding phosphatidylinositol 3, 4, 5 triphosphate (PIP3) which in turn activate AKT kinase (serine/threonine kinase), the central enzyme in regulation of metabolic functions. Due to their implications in disease pathophysiology, PI3K/AKT inhibitors became attractive targets for pharmaceutical industries. In order to assess the functional response generated by PI3K inhibitors, an appropriate cell-based screening system is essential in any screening cascade. Here we report the development of highly sensitive in-vitro cell-based kinase ELISA which quantifies the phosphorylated AKT kinase (serine 473) and total AKT kinase directly within the cells upon compound treatment. PI3Kbeta overexpressing NIH3T3 cells stimulated by lysophosphatidic acid was used for PI3K/Akt pathway activation. Assay performance reliability and robustness were determined by percentage coefficient of variation (%CV) and Z factor which demonstrated an excellent agreement with assay guidelines. This 96-well plate medium throughput assay methodology was used to screen novel molecules and proved a commendable tool to study the mechanism of action property and target engagement of novel PI3K inhibitors in drug discovery. PMID- 29035166 TI - Strengthening expertise for health technology assessment and priority-setting in Africa. AB - BACKGROUND: Achieving sustainable universal health coverage depends partly on fair priority-setting processes that ensure countries spend scarce resources wisely. While general health economics capacity-strengthening initiatives exist in Africa, less attention has been paid to developing the capacity of individuals, institutions and networks to apply economic evaluation in support of health technology assessment and effective priority-setting. OBJECTIVE: On the basis of international lessons, to identify how research organisations and partnerships could contribute to capacity strengthening for health technology assessment and priority-setting in Africa. METHODS: A rapid scan was conducted of international formal and grey literature and lessons extracted from the deliberations of two international and regional workshops relating to capacity building for health technology assessment. 'Capacity' was defined in broad terms, including a conducive political environment, strong public institutional capacity to drive priority-setting, effective networking between experts, strong research organisations and skilled researchers. RESULTS: Effective priority-setting requires more than high quality economic research. Researchers have to engage with an array of stakeholders, network closely other research organisations, build partnerships with different levels of government and train the future generation of researchers and policy-makers. In low- and middle-income countries where there are seldom government units or agencies dedicated to health technology assessment, they also have to support the development of an effective priority-setting process that is sensitive to societal and government needs and priorities. CONCLUSIONS: Research organisations have an important role to play in contributing to the development of health technology assessment and priority setting capacity. In Africa, where there are resource and capacity challenges, effective partnerships between local and international researchers, and with key government stakeholders, can leverage existing skills and knowledge to generate a critical mass of individuals and institutions. These would help to meet the priority-setting needs of African countries and contribute to sustainable universal health coverage. PMID- 29035167 TI - Labeling Same-Sex Sexuality in a Tolerant Society That Values Normality: The Dutch Case. AB - Studies have pointed to a trend in Western societies toward the normalization of homosexuality and emerging "post-gayness" among young people, who no longer consider their sexual identity meaningful in defining themselves. This article takes a closer look at the Dutch case where tolerance is regarded as a national virtue, while society remains heteronormative. In 38 interviews with Dutch same sex-attracted young people, we investigated the labels they used to describe their sexual orientation to reveal what they can tell us about normalization, tolerance, and heteronormativity. In their labeling strategies, participants de emphasized their sexual identity, othered, and reinforced the hetero/homo binary. They preferred labels without connotations to gender expression. While post-gay rhetoric was ideologically appealing, its use was not an outcome of their sexual orientation having become insignificant; it rather enabled them to produce normality. We discuss the findings against the backdrop of "Dutch tolerance," which rests on an ideology of normality. PMID- 29035168 TI - Employee health-relevant personality traits are associated with the psychosocial work environment and leadership. AB - OBJECTIVES: Little is known about personality in relation to assessments of the psychosocial work environment and leadership. Therefore the objective of this study is to explore possible associations and differences in mean values between employee health-relevant personality traits and assessments of the psychosocial work environment and leadership behaviors. METHODS: 754 survey responses from ten organizations were selected from a large-scale intervention study. The Health relevant Personality 5 inventory was used to assess personality. Five dimensions of the psychosocial work environment were assessed with 38 items from the QPSNordic and 6 items from the Developmental Leadership Questionnaire were used to assess leadership behavior. RESULTS: Positive correlations were found between Hedonic capacity (facet of Extraversion) and perceptions of the psychosocial work environment and leadership behavior. Negative correlations were found for Negative affectivity (facet of Neuroticism), Antagonism (facet of Agreeableness), Impulsivity (facet of Conscientiousness) and Alexithymia (facet of Openness). There were also significant differences in mean values of all work environment indicators between levels of health-relevant personality traits. Those with higher levels of hedonic capacity had higher (better) perceptions compared to those with lower levels. Those with higher levels of negative affectivity had lower (worse) perceptions compared to those with lower levels. CONCLUSIONS: The findings show a clear association between employee health-relevant personality traits and assessments of the psychosocial work environment and leadership behavior. Personality can be important to take into consideration for leaders when interpreting survey results and when designing organizational interventions. PMID- 29035169 TI - Prospective Longitudinal Substance Use Patterns in Patients Preparing for Hepatitis C Treatment. AB - OBJECTIVES: This study prospectively examined the independent courses of alcohol, drugs, and smoking over 18 months in 154 patients preparing for hepatitis C virus (HCV) treatment in relation to functioning, negative coping, and satisfaction with quality of life in data collected from a randomized controlled trial of multiple-family group psychoeducation for patients preparing for HCV treatment. Patients with HCV who had consistent abstinence, consistent use, or achievement of abstinence after study entry were examined for outcomes pertaining to functioning in the context of HCV, negative coping, and satisfaction with quality of life. METHODS: Of 309 patients considering treatment for HCV recruited from outpatient clinics at two major university medical centers and a Veterans Affairs medical center for a randomized controlled trial of a psychoeducation intervention, 154 completed baseline, 6-month, and 18-month assessments. The assessments included structured diagnostic interviews; questionnaires examining functioning, coping, and satisfaction with quality of life; medical record review; and urine testing for substances of abuse. For these analyses, substance use patterns were determined as consistent abstinence, consistent use, and achieving abstinence after study entry for alcohol and drug use and smoking. RESULTS: The entire sample generally improved in all of these three outcomes over the course of the study. The course of alcohol, drugs, and smoking predicted HCV related functioning, negative coping, and satisfaction with quality-of-life outcomes over 18 months. Three specific patterns of use (consistent abstinence, consistent use, and achievement of abstinence after study entry) of these substances diverged in association with outcomes related to functioning, negative coping, and satisfaction with quality of life, not only across trajectories over time within substance types but also among types of substances. CONCLUSIONS: This study's finding that different substances were associated with distinct clinical outcomes suggests the need to conceptually unbundle different types of substances in managing HCV. Future research is needed to examine the clinical utility of further unbundling these substances and also to further investigate effects of various amounts of use of these substances. PMID- 29035171 TI - Proceedings of Patient Reported Outcome Measure's (PROMs) Conference Oxford 2017: Advances in Patient Reported Outcomes Research : Oxford, UK. 8th June 2017. PMID- 29035170 TI - Abstracts from the 8th International Conference on cGMP Generators, Effectors and Therapeutic Implications : Bamberg, Germany. 23-25 June, 2017. PMID- 29035173 TI - One year in review 2017: systemic sclerosis. AB - Systemic sclerosis is a rare acquired systemic disease characterised by heterogeneous evolution and outcome. Each year novel insights into the pathogenesis, diagnosis and treatment of this severe disease have been published. We herewith provide our overview of the most significant literature contributions published over the last year. PMID- 29035174 TI - In male rats, the ability of central insulin to suppress glucose production is impaired by olanzapine, whereas glucose uptake is left intact. AB - BACKGROUND: Insulin receptors are widely expressed in the brain and may represent a crossroad between metabolic and cognitive disorders. Although antipsychotics, such as olanzapine, are the cornerstone treatment for schizophrenia, they are associated with high rates of type 2 diabetes and lack efficacy for illness related cognitive deficits. Historically, this risk of diabetes was attributed to the weight gain propensity of antipsychotics, but recent work suggests antipsychotics can have weight-independent diabetogenic effects involving unknown brain-mediated mechanisms. Here, we examined whether antipsychotics disrupt central insulin action, hypothesizing that olanzapine would impair the well established ability of central insulin to supress hepatic glucose production. METHODS: Pancreatic euglycemic clamps were used to measure glucose kinetics alongside a central infusion of insulin or vehicle into the third ventricle. Male rats were pretreated with olanzapine or vehicle per our established model of acute olanzapine-induced peripheral insulin resistance. Groups included (central peripheral) vehicle-vehicle (n = 11), insulin-vehicle (n = 10), insulin olanzapine (n = 10) and vehicle-olanzapine (n = 8). RESULTS: There were no differences in peripheral glucose or insulin levels. Unexpectedly, we showed that central insulin increased glucose uptake, and this effect was not perturbed by olanzapine. We replicated suppression of glucose production by insulin (clamp relative to basal: 77.9% +/- 13.1%, all p < 0.05), an effect abolished by olanzapine (insulin-olanzapine: 7.7% +/- 14%). LIMITATIONS: This study used only male rats and an acute dose of olanzapine. CONCLUSION: To our knowledge, this is the first study suggesting olanzapine may impair central insulin sensing, elucidating a potential mechanism of antipsychotic-induced diabetes and opening avenues of investigation related to domains of schizophrenia psychopathology. PMID- 29035172 TI - A pUL25 dimer interfaces the pseudorabies virus capsid and tegument. AB - Inside the virions of alpha-herpesviruses, tegument protein pUL25 anchors the tegument to capsid vertices through direct interactions with tegument proteins pUL17 and pUL36. In addition to promoting virion assembly, both pUL25 and pUL36 are critical for intracellular microtubule-dependent capsid transport. Despite these essential roles during infection, the stoichiometry and precise organization of pUL25 and pUL36 on the capsid surface remain controversial due to the insufficient resolution of existing reconstructions from cryo-electron microscopy (cryoEM). Here, we report a three-dimensional (3D) icosahedral reconstruction of pseudorabies virus (PRV), a varicellovirus of the alpha herpesvirinae subfamily, obtained by electron-counting cryoEM at 4.9 A resolution. Our reconstruction resolves a dimer of pUL25 forming a capsid associated tegument complex with pUL36 and pUL17 through a coiled coil helix bundle, thus correcting previous misinterpretations. A comparison between reconstructions of PRV and the gamma-herpesvirus Kaposi's sarcoma-associated herpesvirus (KSHV) reinforces their similar architectures and establishes important subfamily differences in the capsid-tegument interface. PMID- 29035176 TI - Comparing Hospital Processes and Outcomes in California Medicare Beneficiaries: Simulation Prompts Reconsideration. AB - INTRODUCTION: This article is not a traditional research report. It describes how conducting a specific set of benchmarking analyses led us to broader reflections on hospital benchmarking. We reexamined an issue that has received far less attention from researchers than in the past: How variations in the hospital admission threshold might affect hospital rankings. Considering this threshold made us reconsider what benchmarking is and what future benchmarking studies might be like. Although we recognize that some of our assertions are speculative, they are based on our reading of the literature and previous and ongoing data analyses being conducted in our research unit. We describe the benchmarking analyses that led to these reflections. OBJECTIVES: The Centers for Medicare and Medicaid Services' Hospital Compare Web site includes data on fee-for-service Medicare beneficiaries but does not control for severity of illness, which requires physiologic data now available in most electronic medical records.To address this limitation, we compared hospital processes and outcomes among Kaiser Permanente Northern California's (KPNC) Medicare Advantage beneficiaries and non KPNC California Medicare beneficiaries between 2009 and 2010. METHODS: We assigned a simulated severity of illness measure to each record and explored the effect of having the additional information on outcomes. RESULTS: We found that if the admission severity of illness in non-KPNC hospitals increased, KPNC hospitals' mortality performance would appear worse; conversely, if admission severity at non-KPNC hospitals' decreased, KPNC hospitals' performance would appear better. CONCLUSION: Future hospital benchmarking should consider the impact of variation in admission thresholds. PMID- 29035177 TI - Use of Epidural Analgesia as an Adjunct in Elective Abdominal Wall Reconstruction: A Review of 4983 Cases. AB - CONTEXT: Use of epidural analgesia in patients undergoing elective abdominal wall reconstruction is common. OBJECTIVE: To assess the impact of epidural analgesia in patients undergoing abdominal wall reconstruction. DESIGN: All patients who underwent elective ventral hernia repair from 2005 to 2014 were retrospectively identified. Patients were divided into two groups by the postoperative use of epidural analgesics as an adjunct analgesic method. Preoperative comorbidities, American Society of Anesthesiologists status, operative findings, postoperative pain management, and venothromboembolic prophylaxis were extracted from the database. Logistic regressions were performed to assess the impact of epidural use. MAIN OUTCOME MEASURES: Severity of pain on postoperative days 1 and 2. RESULTS: During the study period, 4983 patients were identified. Of those, 237 patients (4.8%) had an epidural analgesic placed. After adjustment for differences between groups, use of epidural analgesia was associated with significantly lower rates of 30-day presentation to the Emergency Department (adjusted odds ratio [AOR] = 0.53, 95% confidence interval [CI] = 0.32-0.87, adjusted p = 0.01). Use of epidural analgesia resulted in higher odds of abscess development (AOR = 5.89, CI = 2.00-17.34, adjusted p < 0.01) and transfusion requirement (AOR = 2.92, CI = 1.34-6.40, adjusted p < 0.01). Use of epidural analgesia resulted in a significantly lower pain score on postoperative day 1 (3 vs 4, adjusted p < 0.01). CONCLUSION: Use of epidural analgesia in patients undergoing abdominal wall reconstruction may result in longer hospital stay and higher incidence of complications while having no measurable positive clinical impact on pain control. PMID- 29035178 TI - Patient Perspectives on Communication with Primary Care Physicians about Chronic Low Back Pain. AB - OBJECTIVES: Chronic low back pain (CLBP) is a common health problem with challenges for providing satisfactory care. This study was undertaken to identify opportunities to improve key aspects of physicians' communications with CLBP affected patients. METHODS: A series of 3 focus groups, each with 7 to 11 patients with CLBP, were recruited from primary care settings and grouped by risk level of reduced function resulting from back pain, to elicit perspectives about interactions with their primary care physicians. Analysis of focus group transcripts used an iterative process based on a thematic approach and a priori concepts. RESULTS: A total of 28 patients participated in the focus groups. Patient comments about communicating with physicians around CLBP fit into themes of listening and empathy, validating pain experiences, conducting effective CLBP assessment, providing clear diagnosis and information, and collaboratively working on treatment. Patients shared that physicians can foster positive interactions with CLBP-affected patients by sharing personal experiences of chronic pain, being truthful about not having all the answers and being clear about how patients can benefit from referrals, reviewing the patient's previous treatments before beginning conversations about treatment options, providing follow-up instructions, giving patients a diagnosis beyond "chronic pain," and explaining the role of imaging in their care. CONCLUSION: This study provides specific steps that physicians in the US can take to improve physician-patient interactions during primary care visits pertaining to CLBP. The findings could inform physician training, development of educational materials for patients, and future research. PMID- 29035175 TI - Lifestyle Medicine: A Brief Review of Its Dramatic Impact on Health and Survival. AB - By ignoring the root causes of disease and neglecting to prioritize lifestyle measures for prevention, the medical community is placing people at harm. Advanced nations, influenced by a Western lifestyle, are in the midst of a health crisis, resulting largely from poor lifestyle choices. Epidemiologic, ecologic, and interventional studies have repeatedly indicated that most chronic illnesses, including cardiovascular disease, cancer, and type 2 diabetes, are the result of lifestyles fueled by poor nutrition and physical inactivity.In this article, we describe the practice of lifestyle medicine and its powerful effect on these modern instigators of premature disability and death. We address the economic benefits of prevention-based lifestyle medicine and its effect on our health care system: A system on the verge of bankruptcy. We recommend vital changes to a disastrous course. Many deaths and many causes of pain, suffering, and disability could be circumvented if the medical community could effectively implement and share the power of healthy lifestyle choices. We believe that lifestyle medicine should become the primary approach to the management of chronic conditions and, more importantly, their prevention. For future generations, for our own health, and for the Hippocratic Oath we swore to uphold ("First do no harm"), the medical community must take action. It is our hope that the information presented will inspire our colleagues to pursue lifestyle medicine research and incorporate such practices into their daily care of patients. The time to make this change is now. PMID- 29035180 TI - Ten-Year Trends in Preventive Service Use Before and After Prostate Cancer Diagnosis: A Comparison with Noncancer Controls. AB - CONTEXT: Few studies have assessed the longer-term quality of preventive care in prostate cancer (PCa) survivors. OBJECTIVE: To compare the rates of preventive services among PCa survivors five years before and after diagnosis, to men without PCa. DESIGN: Men enrolled in Kaiser Permanente Southern California with newly diagnosed PCa (2002-2008) were matched 1:1 to men without a PCa diagnosis on age, race, and timing of prostate-specific antigen test (N = 31,180). The use of preventive services, including colorectal cancer screening, diabetes tests, lipid panels, and influenza and pneumococcal vaccinations was assessed 5 years before and after diagnosis (or index date for controls). MAIN OUTCOME MEASURES: Relative rates (RRs) of use were calculated for cases and controls separately and compared using Poisson regression, adjusting for comorbidities and outpatient utilization in 2014. RESULTS: Overall, the rates of preventive services were lower among men with PCa vs men without PCa. However, in the 5 years after diagnosis, rates of preventive service use for all services were greater among PCa survivors vs men without PCa (colorectal cancer: RR = 1.05, 95% confidence interval [CI] = 1.01-1.10; lipids: RR = 1.10, 95% CI = 1.08-1.11; hemoglobin A1C: RR = 1.17, 95% CI = 1.14-1.19; glucose: RR = 1.24, 95% CI = 1.23-1.26; influenza vaccine: RR = 1.05, 95% CI = 1.03-1.07; pneumococcal vaccine: RR = 1.03, 95% CI = 0.97-1.09). CONCLUSION: Delivery of preventive care improved after PCa diagnosis, with survivors receiving comparable preventive care to men without PCa during the five years following diagnosis. PMID- 29035179 TI - Knee Osteoarthritis: A Primer. AB - The purpose of this article is to provide a synopsis of the current medical understanding of knee osteoarthritis. We describe the prevalence, causes and associated risk factors, symptoms, diagnosis and classification, and treatment options. A quiz serves to assist readers in their understanding of the presented material. PMID- 29035181 TI - Minimizing Medical Radiation Exposure by Incorporating a New Radiation "Vital Sign" into the Electronic Medical Record: Quality of Care and Patient Safety. AB - There is a clearly perceived and imminent need to decrease unnecessary and detrimental exposure to medical ionizing radiation. We propose a new radiation "vital sign" that incorporates cumulative radiation exposure to create a risk score on the basis of an individualized assessment of potential harm from additional exposure to medical radiation. We propose to then tie the risk score to real-time, evidence-based, clinical decision support for procedures that use ionizing radiation. Additionally, we offer recommendations that minimize unnecessary or low-yield uses. Preference is given to approaches and modalities that use less or no ionizing radiation and that are medically appropriate, acceptable to, and safer for patients. PMID- 29035183 TI - Atypical Presentation of Acute Angle-Closure Glaucoma in Maroteaux-Lamy Mucopolysaccharidosis with Patent Prophylactic Laser Peripheral Iridotomy: A Case Report. AB - INTRODUCTION: Maroteaux-Lamy syndrome (MLS) is a rare progressive condition characterized by inflammation and scarring of multiple organs. Ocular complications caused by anterior segment abnormalities commonly cause visual impairment in MLS. Angle-closure glaucoma is one such complication, but there are limited data on presentation, workup, and management of this condition. CASE PRESENTATION: This case report describes an atypical presentation of acute angle closure glaucoma in a patient with MLS despite a prior prophylactic laser peripheral iridotomy-which would typically prevent an acute angle-closure attack that was patent and intact at the time of angle closure. DISCUSSION: Because of severe congenital anterior segment crowding, high axial hyperopia, and constant accommodative demand in patients with MLS, we recommend performing two prophylactic laser peripheral iridotomies simultaneously in the same eye instead of one. The mechanism for this indication differs from that in patients at risk of acute angle-closure glaucoma because of lens zonulopathy alone. We hope that this case report may help prevent vision loss and optimize quality of life in patients with MLS who may be wheelchair-bound but are typically high functioning with normal intelligence. PMID- 29035182 TI - Induction with Infliximab and a Plant-Based Diet as First-Line (IPF) Therapy for Crohn Disease: A Single-Group Trial. AB - BACKGROUND: Approximately 30% of patients with Crohn disease (CD) are unresponsive to biologics. No previous study has focused on a plant-based diet in an induction phase of CD treatment. OBJECTIVE: To investigate the remission rate of infliximab combined with a plant-based diet as first-line (IPF) therapy for CD. METHODS: This was a prospective single-group trial conducted at tertiary hospitals. Subjects included consecutive adults with a new diagnosis (n = 26), children with a new diagnosis (n = 11), and relapsing adults (n = 9) with CD who were naive to treatment with biologics. Patients were admitted and administered a standard induction therapy with infliximab (5 mg/kg; 3 infusions at 0, 2, and 6 weeks). Additionally, they received a lacto-ovo-semivegetarian diet. The primary end point was remission, defined as the disappearance of active CD symptoms at week 6. Secondary end points were Crohn Disease Activity Index (CDAI) score, C reactive protein (CRP) concentration, and mucosal healing. RESULTS: Two adults with a new diagnosis were withdrawn from the treatment protocol because of intestinal obstruction. The remission rates by the intention-to-treat and per protocol analyses were 96% (44/46) and 100% (44/44), respectively. Mean CDAI score (314) on admission decreased to 63 at week 6 (p < 0.0001). Mean CRP level on admission (5.3 mg/dL) decreased to 0.2 (p < 0.0001). Mucosal healing was achieved in 46% (19/41) of cases. CONCLUSION: IPF therapy can induce remission in most patients with CD who are naive to biologics regardless of age or whether they have a new diagnosis or relapse. PMID- 29035184 TI - The Art of Healing through Narrative Medicine in Clinical Practice: A Reflection. AB - The art of medicine has roots that lie deep in developing the biopsychosocial connection. Understanding a human body (both its physiology and pathology) along with components of emotional and spiritual cores can lead to provision of excellent medical care and better outcomes. The harmonization of psychosocial consequences of a biological disease is helpful not just for health care professionals but also for patients. Where it keeps the empathy and compassion alive and results in greater patient satisfaction, it also helps boost the physician's morale.Our objective is to reflect on the impact of narrative medicine on physician-patient dynamics for health care professionals in a clinical setting. This article was written after synthesizing the findings of evidence-based literature, retrieved from different sources, along with our own reflections on our encounters with patients.One could infer from the evidence based research that the practice of narrative medicine improves one's concern and understanding toward the patient. This requires more time from the clinician, but medical care without compassion and humaneness causes high rates of dissatisfaction among both patients and health care practitioners, along with the risk of recurrent ailments. Our own patient encounters provide a testimony to this inference. The biopsychosocial model carries the same holistic approach toward patients. The mainstay of treatment in any domain of medicine should contain thoughtfulness for the sufferer rather than sole consideration of the suffering. PMID- 29035185 TI - Image Diagnosis: Yellow Palms and Soles: Look Beyond the Eyes and Think Beyond Hyperbilirubinemia. PMID- 29035186 TI - Left Ventricular Noncompaction Cardiomyopathy and Recurrent Polymorphic Ventricular Tachycardia: A Case Report and Literature Review. AB - INTRODUCTION: Noncompaction cardiomyopathy is a rare phenotype of cardiomyopathy associated with severe cardiac arrhythmia and thromboembolic complications. CASE PRESENTATION: A 55-year-old woman presented with frank pulmonary edema and received a diagnosis of noncompaction cardiomyopathy. DISCUSSION: Left ventricular noncompaction cardiomyopathy is increasingly being diagnosed because of advances in imaging modalities. It is important to differentiate this new phenotype of cardiomyopathy from others because its diagnosis, management, and prognosis differ. We reviewed the literature and summarized the diagnostic criteria, associated complications, initial and long-term management, and the recommendation for family screening. PMID- 29035188 TI - Finding Purpose: Honing the Practice of Making Meaning in Medicine. AB - Despite decades of advances in diagnosing and treating a broad range of illnesses, many changes in our health care system impede true caregiving, leaving patients and practitioners dissatisfied and creating an emotional burden for practitioners that contributes to the staggering rates of physician burnout. Given this dissatisfaction and disconnection, practitioners and patients alike can benefit from structured opportunities to explore the expectations, assumptions, and emotions that shape our understanding of health and illness, and thus our experiences within the health care system. This article demonstrates how group discussions of poetry-something that might seem irrelevant to medical practice or physical wellness-can foster communication, connection, and collective reflection for physicians, interprofessional health care teams, and groups that include practitioners, patients, and families, allowing participants to once again find meaning in medicine. PMID- 29035187 TI - Defecation-Specific Behavior in Children with Functional Defecation Issues: A Systematic Review. AB - CONTEXT: Atypical defecation habits are common and distressing for children and families and can have a major impact on quality of life. Often, no underlying factor can be identified, and the defecation disorder is considered functional. Current interventions are not successful for up to 50% of children. We suggest this high failure rate may be caused by lack of consistency in descriptors of behavioral indicators for functional defecation problems. Most investigations and descriptors focus on general behavior. There are fewer reports concerning defecation-specific behaviors. OBJECTIVE: To develop a thorough inventory of defecation-specific behaviors, providing a more informed foundation for assessment and intervention. DESIGN: A systematic review of six common databases was performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses recommendations. Reference lists of retained articles were screened for additional studies. MAIN OUTCOME MEASURES: Content analysis was used to classify defecation-specific behaviors into 17 categories. RESULTS: Our search yielded 2677 articles; 98 peer-reviewed publications were retained for full-text review, and 67 articles were included in the final qualitative synthesis. Although there is inconsistency in reported diagnostic criteria, stool withholding and manifesting pain on defecation are the most commonly reported defecation-specific behaviors. In the studies that included children with autism or attention-deficit/hyperactivity disorder, the defecation-specific behaviors were not unique to the diagnostic group. CONCLUSION: Consistent use of established diagnostic criteria, along with use of behaviors identified through this review, lay a foundation for more effective interventions. PMID- 29035189 TI - Cancer Screening Reminders: Addressing the Spectrum of Patient Preferences. AB - CONTEXT: Health care systems continue to seek evidence about how to optimize the efficiency and effectiveness of cancer screening reminders. Annual reminders to receive preventive services can be an efficient strategy. OBJECTIVE: To understand patient motivators and barriers to cancer screening and preferences about reminder strategies. DESIGN: We conducted 11 focus groups among adults recommended for cancer screening within Kaiser Permanente Washington. We held separate focus groups with women aged 21 to 49 years, women 50 to 75 years, and men 50 to 75 years. We used an inductive, validated coding scheme for analysis. MAIN OUTCOME MEASURES: Motivators and barriers to obtaining recommended cancer screening and general cancer screening reminder content and modality preferences. RESULTS: Half of our participants were women aged 50 to 75 years, and 25% were men aged 50 to 75 years. Differences by age, sex, insurance status, financial status, and health beliefs all drove the participants' preferences for whether they seek these recommended services and how and when they wish to be reminded about recommended cancer screening. Most participants preferred personalized reminders, and many favored receiving reminders less than 3 months before the recommended procedure date rather than a consolidated annual reminder. Younger participants more commonly requested electronic reminders, such as texts and e mails. CONCLUSION: Optimizing cancer screening reminders within a health care system involves a multifaceted approach that enables members to request which form of reminder they prefer (eg, electronic, paper, telephone) and the timing with which they want to be reminded, while staying affordable and manageable to the health care system. PMID- 29035190 TI - Brain tumor epidemiology in the era of precision medicine: The 2017 Brain Tumor Epidemiology Consortium meeting report. AB - The Brain Tumor Epidemiology Consortium (BTEC) is an international consortium that aims to advance the development of multicenter and interdisciplinary collaborations that focus on research related to the etiology, outcomes, and prevention of brain tumors. The 18th annual BTEC meeting was held in Banff, AB, Canada, on June 27 - 29, 2017. The meeting focused on the intersection between epidemiology and precision medicine, that is, the use of molecular indicators of risk, early disease and prognosis or precision epidemiology. While traditional epidemiologic approaches group large numbers of participants for statistical power, precision epidemiology is founded on the uniqueness and biology of individual disease characteristics. With this in mind, plenary speakers described the molecular heterogeneity of adult and pediatric brain tumors and how those characteristics are currently being used to guide therapy and etiologic research. Rare subtypes and novel mechanisms for recruitment of individuals for research on brain tumors were discussed along with concepts and methodology related to biological and etiologic heterogeneity. The incorporation of relevant molecular classifiers into population registries was emphasized for its role in future research endeavors, ensuring the accessibility of such tools for researchers and clinicians seeking to improve the lives of individuals with brain tumors and those at risk. The next BTEC meeting will be held in Copenhagen, Denmark, in June 2018.?. PMID- 29035191 TI - IDH-mutant giant cell glioblastoma: A neglected tumor variant? PMID- 29035192 TI - Bacillus cereus bacteremia with central nervous system involvement: A neuropathological study. AB - Bacillus cereus is a widely-distributed, gram-positive or variable, rod shaped bacterium frequently considered a contaminant in clinical specimens. It is recognized as a potential pathogen inducing self-limiting emetic or diarrheal food poisoning or localized infection in immunocompetent patients. True B. cereus bacteremia is uncommon and mainly observed in fragile patients, notably in immunocompromised individuals. We report clinical, radiological, and pathological findings of a 64-year-old patient with a history of acute myeloid leukemia who initially presented a fever while neutropenic after the induction of a second cycle of chemotherapy. He developed B. cereus bacteremia with invasive infection and a fatal outcome. The clinical and radiological data of this case are compared to a previously published series of 21 patients from our institution with B. cereus bacteremia. This study highlights the clinical challenge to diagnose B. cereus and the importance of the delay between the detection of B. cereus and the initiation of an effective targeted antibiotic therapy. This case presented an aggressive evolution with multiple necrotic and hemorrhagic foci in the brain. Upon histological examination, B. cereus virulence was notably reflected by the dissection of blood vessel walls by the bacilli and luminal occlusion, a pattern that has not been yet reported.?. PMID- 29035193 TI - Renal outcome in IgA nephropathy according to Oxford classification and ultrastructural analysis in a Brazilian center?. AB - AIMS: Correlate clinical and histologic features with renal outcome in patients with biopsy-proven IgA nephropathy (IgAN). MATERIALS AND METHODS: Retrospective analysis of records and renal tissue of IgAN patients. Histology was revised according to MEST score of Oxford classification. Focal segmental glomerulosclerosis (FSGS) features were assessed by light microscopy. Electron microscopy review searched for podocyte effacement. RESULTS: 67 patients were included, 56.7% men, mean age 34.5 +/- 12.5 years, mean arterial pressure (MAP) 106 +/- 18 mmHg, estimated glomerular filtration rate (eGFR) 63.32 +/- 43.07 mL/min/1.73m2 and proteinuria 3.1 +/- 2.2 g/24 h. M1 was seen in 38 patients (56.7%), E1 in 12 (17.9%), S1 in 49 (73.1%), T1 in 18 (26.8%), and T2 in 17 (25.3%). Mean effacement index (EI) was 0.81 +/- 0.18 and did not correlate with proteinuria. 27 patients (40.2%) had end-stage renal disease (ESRD) which correlated with MAP (p = 0.002), eGFR (p = 0.0003), T1 (p = 0.0008) and T2 (p = 0.0001), follow-up MAP (p = 0.02) and follow-up proteinuria (p = 0.01 for 1.0 - 4.0 g/24 h and p = 0.005 for >= 4.0 g/24 h). T score correlated with MAP and proteinuria at baseline (p = 0.0001 and 0.0097, respectively) and during follow up (p = 0.0001 and < 0.0001, respectively). Podocyte hypertrophy correlated with MAP at baseline and during follow-up (p = 0.0046 and 0.0295, respectively). Tip lesion correlated with MAP at baseline (p = 0.0228). There was no correlation between FSGS features or EI with proteinuria or ESRD. CONCLUSIONS: Our data corroborate eGFR, proteinuria, MAP and T score as risk factors for ESRD in IgAN. Most patients had diffuse podocyte effacement, probably secondary to factors unrelated to proteinuria.?. PMID- 29035194 TI - Clinicopathologic characteristics of light chain proximal tubulopathy with light chain inclusions involving multiple renal cell types?. AB - Light chain proximal tubulopathy (LCPT) associated with plasma cell dyscrasias is a rare abnormality, especially cases involving multiple cell types. The aim of this study is to explore the characteristics and outcomes of these diseases. We comprehensively evaluated the clinical-pathological data, treatment, and outcomes of 6 LCPT patients with involvement of multiple cell types. In 3 cases, we found that the inclusions largely existed in tubular cells, while in 2 cases they coexisted in podocytes and tubular cells, and in 1 case they coexisted in histiocytes and tubular cells. The stain features and appearances of inclusions were specific and varied. Five patients displayed kappa-light chains with crystal formation, while 1 patient displayed a lambda subtype with increased lysosomes instead of crystals. Six patients presented with proteinuria, 4 with renal insufficiency, and 4 with complete or partial Fanconi syndrome. Our findings indicate that tubular cells are the most common location of cytoplasmic inclusions. Cases with kappa-light chain storage are more common than lambda, and the formation of crystals may be associated with the subtype of light chains. Immunoelectron microscopy could be used to increase sensitivity for the detection and location of monoclonal light chains. Therefore, these patients have some common clinical features with varied pathologic characteristics and prognoses but the same subtype of light chains.?. PMID- 29035195 TI - Effects of fasting during the month of Ramadan on renal function in patients with autosomal dominant polycystic kidney disease?. AB - BACKGROUND: In this study, we aimed to examine the impact of fasting during the month of Ramadan on autosomal dominant polycystic kidney disease (-ADPKD) patients with normal to near-normal glomerular filtration rate (GFR). MATERIALS AND METHODS: This was a prospective observational study of patients with ADPKD, the majority of whom had normal or near-normal GFR. Patients were divided into two groups: the fasting group (FG) and the nonfasting group (NFG). Assessments in the NFG were performed 1 week before and 1 month after Ramadan, while FG patients were assessed on the last day of fasting in addition to the abovementioned visits. The following parameters were checked at each visit: blood pressure (BP), weight, sodium, potassium, blood urea nitrogen (BUN), creatinine, calcium, phosphorus, glucose, lipid profile, bicarbonate, urine density, 24-hour urine volume, 24-hour urine protein, GFR, neutrophil gelatinase-associated lipocalin (NGAL), and kidney injury molecule-1 (KIM-1). Kidney function tests were carried out on the 7th day of fasting in the FG for the identification of early kidney damage. RESULTS: Of the overall group of 54 patients, 23 were in FG (19 female) and 31 were in NFG (18 female). There were no significant differences between the two groups in terms of age, gender, ADPKD duration, and presence of hypertension. The mean estimated glomerular filtration rate (eGFR) values of FG and NFG were 86.4 +/- 18.5 and 66.1 +/- 36.5 mL/min/1.73m2, respectively. During the follow-up period, no significant changes occurred in BP, weight, creatinine, 24-hour urine volume, NGAL, KIM-1, or GFR in either group (p > 0.05), while 24-hour urinary protein was significantly decreased in FG (p < 0.001). CONCLUSION: A fasting duration of ~ 17 hours a day did not affect renal function negatively in patients with early-stage chronic kidney disease due to ADPKD. Also, no significant changes occurred in acute renal failure markers.?. PMID- 29035196 TI - Thyroid function in patients on continuous ambulatory peritoneal dialysis in comparison with chronic kidney disease?. AB - BACKGROUND/METHODS: Thyroid function was evaluated in 14 Japanese patients on continuous ambulatory peritoneal dialysis (CAPD) with end-stage renal disease compared with 11 chronic kidney disease (CKD) stage 1+2 patients (glomerular filtration rate >= 60 mL/min/1.73m2). RESULTS: The serum free triiodothyronine (fT3) (2.2 +/- 0.3 pg/mL, p < 0.05) levels were lower, and the rate of low triiodothyronine (T3) syndrome was higher (4 of 13 cases, 30.8%) in the CAPD patients than in the CKD stage 1+2 patients (1 of 10 cases, 10.0%, respectively) or the 57 age-matched healthy controls. The serum thyroglobulin (Tg) levels were significantly higher in the CAPD patients (39.7 (13.4 - 178.0) ng/mL) than in the CKD stage 1+2 patients (9.9 (5.5 - 28.8) ng/mL, p < 0.05). High serum Tg levels (> 30 ng/mL) were observed in 66.7% of the CAPD patients. CONCLUSION: The finding from our study suggested the deterioration of thyroid function with higher prevalence of low T3 syndrome in the CAPD patients. Although speculation as to the reasons for this would be unwise at this point, we did note that the serum Tg levels were very high in the CAPD patients.?. PMID- 29035197 TI - Drug-induced kidney injury: A large case series from the Berlin Case-Control Surveillance Study?. AB - OBJECTIVES: Drug-induced kidney injury (DIKI) may affect patients regardless of their baseline kidney function. Therefore, this study evaluated DIKI in patients with or without previous chronic kidney disease (CKD). MATERIALS AND METHODS: Potential DIKI cases were ascertained using the network of the Berlin Case Control Surveillance Study in all 51 Berlin hospitals from April 2010 until December 2011. Via face-to-face interviews and medical chart reviews, information on all previous drug intake, comorbidities, and demographics was gathered. Included were adult patients with a new diagnosis of acute kidney injury or an acute-on-chronic kidney injury, and with an at least "possible" drug etiology based on the standardized causality assessment of the World Health Organization. Excluded were patients with prerenal or postrenal etiology, bacterial interstitial nephritis, or previous renal transplantation. RESULTS: Overall, 143 patients with DIKI were included in the study (mean age 68.4 +/- 15.6 years). Of those, 77 (54%) had prediagnosed CKD. The most common symptom at onset was anuria/oliguria, while 73 patients (51%) underwent renal replacement therapy, and 11 patients (8%) died. Cardiovascular drugs, such as furosemide, torasemide, hydrochlorothiazide, and ramipril (33%), systemic anti-infectives, such as vancomycin (23%), and musculoskeletal drugs, such as ibuprofen and diclofenac (15%), were most commonly causal for DIKI. Of the 37 patients with DIKI caused by nonsteroidal anti-inflammatory drugs (NSAIDs), 20 (54%) had prediagnosed CKD. CONCLUSION: Nephrotoxicity can be caused by numerous medications, highlighting the importance of increased vigilance among physicians. Moreover, NSAIDs seem to exhibit nephrotoxic properties even in patients with normal baseline kidney function.?. PMID- 29035198 TI - Affected parent sex and severity of autosomal dominant polycystic kidney disease: a retrospective cohort study?. AB - OBJECTIVE: Parental inheritance may differentially affect autosomal dominant polycystic kidney disease (-ADPKD) severity via genetic imprinting or in utero epigenetic modifications; however, evidence is inconsistent. We conducted a longitudinal retrospective cohort study to assess the association between sex of the affected parent and time to hypertension diagnosis, end-stage renal disease (ESRD), and death in patients with the PKD1 genotype. MATERIALS AND METHODS: 814 individuals who participated in research at the University of Colorado were studied. Kaplan-Meier survival analysis was performed. The predictor was parental sex, and outcomes were diagnosis of hypertension, progression to ESRD, and death. We also examined associations in four strata according to affected parent and participant sex, as previous studies have reported earlier onset of ESRD in males compared to females. RESULTS: The median follow-up for each outcome was as follows: hypertension, 30 (interquartile range (IQR): 18, 37); ESRD, 43 (IQR: 31, 52), death 39 (IQR: 25, 52) years of age. Among affected offspring in the entire cohort, there was no difference in hypertension diagnosis (p = 0.97) or progression to ESRD (p = 0.79) according to affected parent sex; however, participants with an affected mother were more likely to die than participants with an affected father (p < 0.05). In stratified analyses, males were more likely than females to develop hypertension and reach ESRD when the affected parent was the father (p < 0.01) but not when the affected parent was the mother (p >= 0.11). CONCLUSIONS: Our results are largely in contrast to the hypothesis that severity of ADPKD is worse with maternal inheritance of disease.?. PMID- 29035199 TI - Structure-based nuclear import mechanism of histones H3 and H4 mediated by Kap123. AB - Kap123, a major karyopherin protein of budding yeast, recognizes the nuclear localization signals (NLSs) of cytoplasmic histones H3 and H4 and translocates them into the nucleus during DNA replication. Mechanistic questions include H3- and H4-NLS redundancy toward Kap123 and the role of the conserved diacetylation of cytoplasmic H4 (K5ac and K12ac) in Kap123-mediated histone nuclear translocation. Here, we report crystal structures of full-length Kluyveromyces lactis Kap123 alone and in complex with H3- and H4-NLSs. Structures reveal the unique feature of Kap123 that possesses two discrete lysine-binding pockets for NLS recognition. Structural comparison illustrates that H3- and H4-NLSs share at least one of two lysine-binding pockets, suggesting that H3- and H4-NLSs are mutually exclusive. Additionally, acetylation of key lysine residues at NLS, particularly H4-NLS diacetylation, weakens the interaction with Kap123. These data support that cytoplasmic histone H4 diacetylation weakens the Kap123-H4-NLS interaction thereby facilitating histone Kap123-H3-dependent H3:H4/Asf1 complex nuclear translocation. PMID- 29035200 TI - Small conductance Ca2+-activated K+ channels induce the firing pause periods during the activation of Drosophila nociceptive neurons. AB - In Drosophila larvae, Class IV sensory neurons respond to noxious thermal stimuli and provoke heat avoidance behavior. Previously, we showed that the activated neurons displayed characteristic fluctuations of firing rates, which consisted of repetitive high-frequency spike trains and subsequent pause periods, and we proposed that the firing rate fluctuations enhanced the heat avoidance (Terada et al., 2016). Here, we further substantiate this idea by showing that the pause periods and the frequency of fluctuations are regulated by small conductance Ca2+ activated K+ (SK) channels, and the SK knockdown larvae display faster heat avoidance than control larvae. The regulatory mechanism of the fluctuations in the Class IV neurons resembles that in mammalian Purkinje cells, which display complex spikes. Furthermore, our results suggest that such fluctuation coding in Class IV neurons is required to convert noxious thermal inputs into effective stereotyped behavior as well as general rate coding. PMID- 29035201 TI - Anti-diabetic drug binding site in a mammalian KATP channel revealed by Cryo-EM. AB - Sulfonylureas are anti-diabetic medications that act by inhibiting pancreatic KATP channels composed of SUR1 and Kir6.2. The mechanism by which these drugs interact with and inhibit the channel has been extensively investigated, yet it remains unclear where the drug binding pocket resides. Here, we present a cryo-EM structure of a hamster SUR1/rat Kir6.2 channel bound to a high-affinity sulfonylurea drug glibenclamide and ATP at 3.63 A resolution, which reveals unprecedented details of the ATP and glibenclamide binding sites. Importantly, the structure shows for the first time that glibenclamide is lodged in the transmembrane bundle of the SUR1-ABC core connected to the first nucleotide binding domain near the inner leaflet of the lipid bilayer. Mutation of residues predicted to interact with glibenclamide in our model led to reduced sensitivity to glibenclamide. Our structure provides novel mechanistic insights of how sulfonylureas and ATP interact with the KATP channel complex to inhibit channel activity. PMID- 29035204 TI - Four Novel Motion Paradigms Based on Steady-State Motion Visual Evoked Potential. AB - OBJECTIVE: The purpose of this paper was to study the applicability of paradigms with motion forms for use in a brain-computer interface (BCI). We examined the performances of different paradigms and evaluated the stimulus effects. METHODS: We designed four novel stimulus paradigms based on basic motion modes: swing, rotation, spiral, and radial contraction-expansion. Canonical correlation analysis (CCA) was used to analyze the accuracy. Additionally, we optimized CCA template signal harmonic combinations for the different motion paradigms. RESULTS: The spiral motion paradigm exhibited the highest average information transfer rate (ITR) and recognition accuracy (41.24 bit/min-1/95.33%), and the average ITRs and recognition accuracies were lowest for the rotation motion paradigm (31.89 bit/min-1 /80.89%) and the radial contraction-expansion motion paradigm (32.62 bit/min-1 /80.72%) because they include fewer harmonic components. CONCLUSION: Any stimulus paradigms with periodic motion can induce steady-state motion visual evoked potentials (SSMVEPs), but the SSMVEP harmonic components induced by different motion modes differed significantly. The spiral motion paradigm was more suitable for BCI applications. SIGNIFICANCE: This study is an important extension to the existing SSMVEP-based BCI literature, and provides new insight to enable future design of the BCI paradigms. PMID- 29035203 TI - Developing a Nonstationary Computational Framework With Application to Modeling Dynamic Modulations in Neural Spiking Responses. AB - OBJECTIVE: This paper aims to develop a computational model that incorporates the functional effects of modulatory covariates (such as context, task, or behavior), which dynamically alter the relationship between the stimulus and the neural response. METHODS: We develop a general computational approach along with an efficient estimation procedure in the widely used generalized linear model (GLM) framework to characterize such nonstationary dynamics in spiking response and spatiotemporal characteristics of a neuron at the level of individual trials. The model employs a set of modulatory components, which nonlinearly interact with other stimulus-related signals to reproduce such nonstationary effects. RESULTS: The model is tested for its ability to predict the responses of neurons in the middle temporal cortex of macaque monkeys during an eye movement task. The fitted model proves successful in capturing the fast temporal modulations in the response, reproducing the spike response temporal statistics, and accurately accounting for the neurons' dynamic spatiotemporal sensitivities, during eye movements. CONCLUSION: The nonstationary GLM framework developed in this study can be used in cases where a time-varying behavioral or cognitive component makes GLM-based models insufficient to describe the dependencies of neural responses on the stimulus-related covariates. SIGNIFICANCE: In addition to being quite powerful in encoding time-varying response modulations, this general framework also enables a readout of the neural code while dissociating the influence of other nonstimulus covariates. This framework will advance our ability to understand sensory processing in higher brain areas when modulated by several behavioral or cognitive variables. PMID- 29035205 TI - Multi-Views Fusion CNN for Left Ventricular Volumes Estimation on Cardiac MR Images. AB - OBJECTIVE: Left ventricular (LV) volume estimation is a critical procedure for cardiac disease diagnosis. The objective of this paper is to address a direct LV volume prediction task. METHODS: In this paper, we propose a direct volume prediction method based on the end-to-end deep convolutional neural networks. We study the end-to-end LV volume prediction method in items of the data preprocessing, network structure, and multiview fusion strategy. The main contributions of this paper are the following aspects. First, we propose a new data preprocessing method on cardiac magnetic resonance (CMR). Second, we propose a new network structure for end-to-end LV volume estimation. Third, we explore the representational capacity of different slices and propose a fusion strategy to improve the prediction accuracy. RESULTS: The evaluation results show that the proposed method outperforms other state-of-the-art LV volume estimation methods on the open accessible benchmark datasets. The clinical indexes derived from the predicted volumes agree well with the ground truth ( ${?rm{EDV:R}}^{{?rm 2}}={?text{0.974}}$, ${?rm{RMSE?,}}= {?text{9.6}}{?rm{?,ml}}$; ${?rm{ESV:R}}^{{?rm 2}}={?text{0.976}}$, ${?rm{RMSE}}= {?text{7.1}}?,{?text{ml}}$; ${?rm{EF:R}}^{{?rm 2}} ={?text{0.828}}$, ${?rm{RMSE}}= {?text{4.71}}?% $). CONCLUSION: Experimental results prove that the proposed method may be useful for the LV volume prediction task. SIGNIFICANCE: The proposed method not only has application potential for cardiac diseases screening for large-scale CMR data, but also can be extended to other medical image research fields. PMID- 29035202 TI - Localised dynactin protects growing microtubules to deliver oskar mRNA to the posterior cortex of the Drosophila oocyte. AB - The localisation of oskar mRNA to the posterior of the Drosophila oocyte defines where the abdomen and germ cells form in the embryo. Kinesin 1 transports oskar mRNA to the oocyte posterior along a polarised microtubule cytoskeleton that grows from non-centrosomal microtubule organising centres (ncMTOCs) along the anterior/lateral cortex. Here, we show that the formation of this polarised microtubule network also requires the posterior regulation of microtubule growth. A missense mutation in the dynactin Arp1 subunit causes most oskar mRNA to localise in the posterior cytoplasm rather than cortically. oskar mRNA transport and anchoring are normal in this mutant, but the microtubules fail to reach the posterior pole. Thus, dynactin acts as an anti-catastrophe factor that extends microtubule growth posteriorly. Kinesin 1 transports dynactin to the oocyte posterior, creating a positive feedback loop that increases the length and persistence of the posterior microtubules that deliver oskar mRNA to the cortex. PMID- 29035206 TI - Parametric Dependencies of Sliding Window Correlation. AB - OBJECTIVE: In this paper, we explore the dependence of sliding window correlation (SWC) results on different parameters of correlating signals. The SWC is extensively used to explore the dynamics of functional connectivity (FC) networks using resting-state functional MRI (rsfMRI) scans. These scanned signals often contain multiple amplitudes, frequencies, and phases. However, the exact values of these parameters are unknown. Two recent studies explored the relationship of window length and frequencies (minimum/maximum) in the correlating signals. METHODS: We extend the findings of these studies by using two deterministic signals with multiple amplitudes, frequencies, and phases. Afterward, we modulate one of the signals to introduce dynamics (nonstationarity) in their relationship. We also explore the relationship of window length and frequency band for real rsfMRI data. RESULTS: For deterministic signals, the spurious fluctuations due to the method itself minimize, and the SWC estimates the stationary correlation when frequencies in the signals have specific relationship. For dynamic relationship also, the undesirable frequencies were removed under specific conditions for the frequencies. For real rsfMRI data, the SWC results varied with frequencies and window length. CONCLUSION: In the absence of any "ground truth" for different parameters in real rsfMRI signals, the SWC with a constant window size may not be a reliable method to study the dynamics of the FC. SIGNIFICANCE: This study reveals the parametric dependencies of the SWC and its limitation as a method to analyze dynamics of FC networks in the absence of any ground truth. PMID- 29035207 TI - Novel Quantitative Analytical Approaches for Rotor Identification and Associated Implications for Mapping. AB - GOAL: Clinical studies identifying rotors and confirming these sites for ablation in treating cardiac arrhythmias have had inconsistent results with the currently available analysis techniques. The aim of this study is to evaluate four new signal analysis approaches-multiscale frequency (MSF), Shannon entropy (SE), Kurtosis (Kt), and multiscale entropy (MSE)-in their ability to identify the pivot point of rotors. METHODS: Optical mapping movies of ventricular tachycardia were used to evaluate the performance and robustness of SE, Kt, MSF, and MSE techniques with respect to several clinical limitations: decreased time duration, reduced spatial resolution, and the presence of meandering rotors. To quantitatively assess the robustness of the four techniques, results were compared to the "true" rotor(s) identified using optical mapping-based phase maps. RESULTS: The results demonstrate that MSF, Kt, and MSE accurately identified both stationary and meandering rotors. In addition, these techniques remained accurate under simulated clinical limitations: shortened electrogram duration and decreased spatial resolution. Artifacts mildly affected the performance of MSF, Kt, and MSE, but strongly impacted the performance of SE. CONCLUSION: These results motivate further validation using intracardiac electrograms to see if these approaches can map rotors in a clinical setting and whether they apply to more complex arrhythmias including atrial or ventricular fibrillation. SIGNIFICANCE: New techniques providing more accurate rotor localization could improve characterization of arrhythmias and, in turn, offer a means to accurately evaluate whether rotor ablation is a viable and effective treatment for chaotic cardiac arrhythmias. PMID- 29035208 TI - An Efficient Integral-Based Method for Three-Dimensional MR-EPT and the Calculation of the RF-Coil-Induced ${B_z}$ Field. AB - Magnetic resonance electrical property tomography (MR-EPT) has significant potential for the estimation of the electrical properties (EPs) of tissue, which are essential for the calculation of specific absorption rates (SAR), a critical safety factor requiring monitoring and controlling in applications of ultrahigh field magnetic resonance imaging. In this paper, a novel, efficient method based on integral equations is proposed for the calculation of the EPs and the RF-coil induced field. An inverse problem framework is first constructed to include the forward problem operator, while the EPs are reconstructed by using a nonlinear conjugate gradient method. The RF-coil-induced component is then calculated based on the achieved EPs and the forward operator. The proposed MR-EPT algorithm improves upon and differs from the existing methods in three aspects. First, a three-dimensional algorithm with improved efficiency is proposed. The higher efficiency arises from using a fast integral equation solver as well as an approximation of initial solution. Second, in addition to the EP values, the proposed method calculates the RF-coil-induced component, which is usually neglected in the existing MR-EPT algorithms. Here, we show that considering this field can significantly improve the accuracy of the SAR calculation. Finally, in contrast to differential approaches, the proposed method is more robust against noisy measurement of the transmit magnetic fields, because of the nature of the integral equations. The proposed method is verified through a full-wave simulation and an anatomically accurate numerical brain model, demonstrating its accuracy and efficiency. PMID- 29035209 TI - An Efficient Approach for Accelerating Bucket Elimination on GPUs. AB - Bucket elimination (BE) is a framework that encompasses several algorithms, including belief propagation (BP) and variable elimination for constraint optimization problems (COPs). BE has significant computational requirements that can be addressed by using graphics processing units (GPUs) to parallelize its fundamental operations, i.e., composition and marginalization, which operate on functions represented by large tables. We propose a novel approach to parallelize these operations with GPUs, which optimizes the table layout so to achieve better performance in terms of increased speedup and scalability. Our approach allows us to process incomplete tables (i.e., tables with some missing variables assignments), which often occur in several practical applications (such as the ones we consider in our dataset). Finally, we can process tables that are larger than the GPU memory. Our approach outperforms the state-of-the-art technique to parallelize BP on GPUs, achieving better speedups (up to +466% with respect to such parallel technique). We test our method on a publicly available COP dataset, measuring a speedup up to with respect to the sequential version. The ability of our technique to process large tables is crucial in this scenario, in which most of the instances generate tables larger than the GPU memory, and hence they cannot be solved with previous GPU techniques related to BE. PMID- 29035210 TI - Inextensible Non-Rigid Structure-from-Motion by Second-Order Cone Programming. AB - We present a global and convex formulation for the template-less 3D reconstruction of a deforming object with the perspective camera. We show for the first time how to construct a Second-Order Cone Programming (SOCP) problem for Non-Rigid Structure-from-Motion (NRSfM) using the Maximum-Depth Heuristic (MDH). In this regard, we deviate strongly from the general trend of using affine cameras and factorization-based methods to solve NRSfM, which do not perform well with complex nonlinear deformations. In MDH, the points' depths are maximized so that the distance between neighbouring points in camera space are upper bounded by the geodesic distance. In NRSfM both geodesic and camera space distances are unknown. We show that, nonetheless, given point correspondences and the camera's intrinsics the whole problem can be solved with SOCP. This is the first convex formulation for NRSfM with physical constraints. We further present how robustness and temporal continuity can be included in the formulation to handle outliers and decrease the problem size, respectively. We show with extensive experiments that our methods accurately reconstruct quasi-isometric objects from partial views under articulated and strong deformations. Compared to the previous methods, our approach gives better or similar accuracy. It naturally handles missing correspondences, non-smooth objects and is very simple to implement compared to previous methods, with only one free parameter (the neighbourhood size). PMID- 29035211 TI - Error-Correcting Factorization. AB - Error Correcting Output Codes (ECOC) is a successful technique in multi-class classification, which is a core problem in Pattern Recognition and Machine Learning. A major advantage of ECOC over other methods is that the multi-class problem is decoupled into a set of binary problems that are solved independently. However, literature defines a general error-correcting capability for ECOCs without analyzing how it distributes among classes, hindering a deeper analysis of pair-wise error-correction. To address these limitations this paper proposes an Error-Correcting Factorization (ECF) method. Our contribution is three fold: (I) We propose a novel representation of the error-correction capability, called the design matrix, that enables us to build an ECOC on the basis of allocating correction to pairs of classes. (II) We derive the optimal code length of an ECOC using rank properties of the design matrix. (III) ECF is formulated as a discrete optimization problem, and a relaxed solution is found using an efficient constrained block coordinate descent approach. (IV) Enabled by the flexibility introduced with the design matrix we propose to allocate the error-correction on classes that are prone to confusion. Experimental results in several databases show that when allocating the error-correction to confusable classes ECF outperforms state-of-the-art approaches. PMID- 29035212 TI - A Deep Cascade of Convolutional Neural Networks for Dynamic MR Image Reconstruction. AB - Inspired by recent advances in deep learning, we propose a framework for reconstructing dynamic sequences of 2-D cardiac magnetic resonance (MR) images from undersampled data using a deep cascade of convolutional neural networks (CNNs) to accelerate the data acquisition process. In particular, we address the case where data are acquired using aggressive Cartesian undersampling. First, we show that when each 2-D image frame is reconstructed independently, the proposed method outperforms state-of-the-art 2-D compressed sensing approaches, such as dictionary learning-based MR image reconstruction, in terms of reconstruction error and reconstruction speed. Second, when reconstructing the frames of the sequences jointly, we demonstrate that CNNs can learn spatio-temporal correlations efficiently by combining convolution and data sharing approaches. We show that the proposed method consistently outperforms state-of-the-art methods and is capable of preserving anatomical structure more faithfully up to 11-fold undersampling. Moreover, reconstruction is very fast: each complete dynamic sequence can be reconstructed in less than 10 s and, for the 2-D case, each image frame can be reconstructed in 23 ms, enabling real-time applications. PMID- 29035213 TI - A Fidelity-Embedded Regularization Method for Robust Electrical Impedance Tomography. AB - Electrical impedance tomography (EIT) provides functional images of an electrical conductivity distribution inside the human body. Since the 1980s, many potential clinical applications have arisen using inexpensive portable EIT devices. EIT acquires multiple trans-impedance measurements across the body from an array of surface electrodes around a chosen imaging slice. The conductivity image reconstruction from the measured data is a fundamentally ill-posed inverse problem notoriously vulnerable to measurement noise and artifacts. Most available methods invert the ill-conditioned sensitivity or the Jacobian matrix using a regularized least-squares data-fitting technique. Their performances rely on the regularization parameter, which controls the trade-off between fidelity and robustness. For clinical applications of EIT, it would be desirable to develop a method achieving consistent performance over various uncertain data, regardless of the choice of the regularization parameter. Based on the analysis of the structure of the Jacobian matrix, we propose a fidelity-embedded regularization (FER) method and a motion artifact reduction filter. Incorporating the Jacobian matrix in the regularization process, the new FER method with the motion artifact reduction filter offers stable reconstructions of high-fidelity images from noisy data by taking a very large regularization parameter value. The proposed method showed practical merits in experimental studies of chest EIT imaging. PMID- 29035214 TI - A Graph Cut Approach to Artery/Vein Classification in Ultra-Widefield Scanning Laser Ophthalmoscopy. AB - The classification of blood vessels into arterioles and venules is a fundamental step in the automatic investigation of retinal biomarkers for systemic diseases. In this paper, we present a novel technique for vessel classification on ultra wide-field-of-view images of the retinal fundus acquired with a scanning laser ophthalmoscope. To the best of our knowledge, this is the first time that a fully automated artery/vein classification technique for this type of retinal imaging with no manual intervention has been presented. The proposed method exploits hand crafted features based on local vessel intensity and vascular morphology to formulate a graph representation from which a globally optimal separation between the arterial and venular networks is computed by graph cut approach. The technique was tested on three different data sets (one publicly available and two local) and achieved an average classification accuracy of 0.883 in the largest data set. PMID- 29035216 TI - Spiral Flow Phantom for Ultrasound Flow Imaging Experimentation. AB - As new ultrasound flow imaging methods are being developed, there is a growing need to devise appropriate flow phantoms that can holistically assess the accuracy of the derived flow estimates. In this paper, we present a novel spiral flow phantom design whose Archimedean spiral lumen naturally gives rise to multi directional flow over all possible angles (i.e., from 0 degrees to 360 degrees ). Developed using lost-core casting principles, the phantom geometry comprised a three-loop spiral (4-mm diameter and 5-mm pitch), and it was set to operate in steady flow mode (3 mL/s flow rate). After characterizing the flow pattern within the spiral vessel using computational fluid dynamics (CFD) simulations, the phantom was applied to evaluate the performance of color flow imaging (CFI) and high-frame-rate vector flow imaging. Significant spurious coloring artifacts were found when using CFI to visualize flow in the spiral phantom. In contrast, using vector flow imaging (least-squares multi-angle Doppler based on a three-transmit and three-receive configuration), we observed consistent depiction of flow velocity magnitude and direction within the spiral vessel lumen. The spiral flow phantom was also found to be a useful tool in facilitating demonstration of dynamic flow visualization based on vector projectile imaging. Overall, these results demonstrate the spiral flow phantom's practical value in analyzing the efficacy of ultrasound flow estimation methods. PMID- 29035215 TI - Task-Driven Optimization of Fluence Field and Regularization for Model-Based Iterative Reconstruction in Computed Tomography. AB - This paper presents a joint optimization of dynamic fluence field modulation (FFM) and regularization in quadratic penalized-likelihood reconstruction that maximizes a task-based imaging performance metric. We adopted a task-driven imaging framework for prospective designs of the imaging parameters. A maxi-min objective function was adopted to maximize the minimum detectability index ( ) throughout the image. The optimization algorithm alternates between FFM (represented by low-dimensional basis functions) and local regularization (including the regularization strength and directional penalty weights). The task driven approach was compared with three FFM strategies commonly proposed for FBP reconstruction (as well as a task-driven TCM strategy) for a discrimination task in an abdomen phantom. The task-driven FFM assigned more fluence to less attenuating anteroposterior views and yielded approximately constant fluence behind the object. The optimal regularization was almost uniform throughout image. Furthermore, the task-driven FFM strategy redistribute fluence across detector elements in order to prescribe more fluence to the more attenuating central region of the phantom. Compared with all strategies, the task-driven FFM strategy not only improved minimum by at least 17.8%, but yielded higher over a large area inside the object. The optimal FFM was highly dependent on the amount of regularization, indicating the importance of a joint optimization. Sample reconstructions of simulated data generally support the performance estimates based on computed . The improvements in detectability show the potential of the task-driven imaging framework to improve imaging performance at a fixed dose, or, equivalently, to provide a similar level of performance at reduced dose. PMID- 29035217 TI - Oasis: Procedurally Generated Social Virtual Spaces from 3D Scanned Real Spaces. AB - We present Oasis, a novel system for automatically generating immersive and interactive virtual reality environments for single and multiuser experiences. Oasis enables real-walking in the generated virtual environment by capturing indoor scenes in 3D and mapping walkable areas. It makes use of available depth information for recognizing objects in the real environment which are paired with virtual counterparts to leverage the physicality of the real world, for a more immersive virtual experience. Oasis allows co-located and remotely located users to interact seamlessly and walk naturally in a shared virtual environment. Experiencing virtual reality with currently available devices can be cumbersome due to presence of objects and furniture which need to be removed every time the user wishes to use VR. Our approach is new, in that it allows casual users to easily create virtual reality environments in any indoor space without rearranging furniture or requiring specialized equipment, skill or training. We demonstrate our approach to overlay a virtual environment over an existing physical space through fully working single and multiuser systems implemented on a Tango tablet device. PMID- 29035218 TI - Interacting With Robots to Investigate the Bases of Social Interaction. AB - Humans show a great natural ability at interacting with each other. Such efficiency in joint actions depends on a synergy between planned collaboration and emergent coordination, a subconscious mechanism based on a tight link between action execution and perception. This link supports phenomena as mutual adaptation, synchronization, and anticipation, which cut drastically the delays in the interaction and the need of complex verbal instructions and result in the establishment of joint intentions, the backbone of social interaction. From a neurophysiological perspective, this is possible, because the same neural system supporting action execution is responsible of the understanding and the anticipation of the observed action of others. Defining which human motion features allow for such emergent coordination with another agent would be crucial to establish more natural and efficient interaction paradigms with artificial devices, ranging from assistive and rehabilitative technology to companion robots. However, investigating the behavioral and neural mechanisms supporting natural interaction poses substantial problems. In particular, the unconscious processes at the basis of emergent coordination (e.g., unintentional movements or gazing) are very difficult-if not impossible-to restrain or control in a quantitative way for a human agent. Moreover, during an interaction, participants influence each other continuously in a complex way, resulting in behaviors that go beyond experimental control. In this paper, we propose robotics technology as a potential solution to this methodological problem. Robots indeed can establish an interaction with a human partner, contingently reacting to his actions without losing the controllability of the experiment or the naturalness of the interactive scenario. A robot could represent an "interactive probe" to assess the sensory and motor mechanisms underlying human-human interaction. We discuss this proposal with examples from our research with the humanoid robot iCub, showing how an interactive humanoid robot could be a key tool to serve the investigation of the psychological and neuroscientific bases of social interaction. PMID- 29035219 TI - An Embedded Real-Time Processing Platform for Optogenetic Neuroprosthetic Applications. AB - Optogenetics offers a powerful new approach for controlling neural circuits. It has numerous applications in both basic and clinical science. These applications require stimulating devices with small processors that can perform real-time neural signal processing, deliver high-intensity light with high spatial and temporal resolution, and do not consume a lot of power. In this paper, we demonstrate the implementation of neuronal models in a platform consisting of an embedded system module and a portable digital light processing projector. As a replacement for damaged neural circuitry, the embedded module processes neural signals and then directs the projector to optogenetically activate a downstream neural pathway. We present a design in the context of stimulating circuits in the visual system, but the approach is feasible for a broad range of biomedical applications. PMID- 29035221 TI - Spiking Neural P Systems With Scheduled Synapses. AB - Spiking neural P systems (SN P systems) are models of computation inspired by biological spiking neurons. SN P systems have neurons as spike processors, which are placed on the nodes of a directed and static graph (the edges in the graph are the synapses). In this paper, we introduce a variant called SN P systems with scheduled synapses (SSN P systems). SSN P systems are inspired and motivated by the structural dynamism of biological synapses, while incorporating ideas from nonstatic (i.e., dynamic) graphs and networks. In particular, synapses in SSN P systems are available only at specific durations according to their schedules. The SSN P systems model is a response to the problem of introducing durations to synapses of SN P systems. Since SN P systems are in essence static graphs, it is natural to consider them for dynamic graphs also. We introduce local and global schedule types, also taking inspiration from the above-mentioned sources. We prove that SSN P systems are computationally universal as number generators and acceptors for both schedule types, under a normal form (i.e., a simplifying set of restrictions). The introduction of synapse schedules for either schedule type proves useful in programming the system, despite restrictions in the normal form. PMID- 29035220 TI - Robot Training With Vector Fields Based on Stroke Survivors' Individual Movement Statistics. AB - The wide variation in upper extremity motor impairments among stroke survivors necessitates more intelligent methods of customized therapy. However, current strategies for characterizing individual motor impairments are limited by the use of traditional clinical assessments (e.g., Fugl-Meyer) and simple engineering metrics (e.g., goal-directed performance). Our overall approach is to statistically identify the range of volitional movement capabilities, and then apply a robot-applied force vector field intervention that encourages under expressed movements. We investigated whether explorative training with such customized force fields would improve stroke survivors' (n = 11) movement patterns in comparison to a control group that trained without forces (n = 11). Force and control groups increased Fugl-Meyer UE scores (average of 1.0 and 1.1, respectively), which is not considered clinically meaningful. Interestingly, participants from both groups demonstrated dramatic increases in their range of velocity during exploration following only six days of training (average increase of 166.4% and 153.7% for the Force and Control group, respectively). While both groups showed evidence of improvement, we also found evidence that customized forces affected learning in a systematic way. When customized forces were active, we observed broader distributions of velocity that were not present in the controls. Second, we found that these changes led to specific changes in unassisted motion. In addition, while the shape of movement distributions changed significantly for both groups, detailed analysis of the velocity distributions revealed that customized forces promoted a greater proportion of favorable changes. Taken together, these results provide encouraging evidence that patient specific force fields based on individuals' movement statistics can be used to create new movement patterns and shape them in a customized manner. To the best of our knowledge, this paper is the first to directly link engineering assessments of stroke survivors' exploration movement behaviors to the design of customized robot therapy. PMID- 29035222 TI - An Advanced MRI Multi-Modalities Segmentation Methodology Dedicated to Multiple Sclerosis Lesions Exploration and Differentiation. AB - Multiple sclerosis (MS) is one of the most common neurological diseases in young people. This paper dealt with an automatic biomedical aided tool involving volumetric segmentation of multiple sclerosis lesions. To meet this challenge, our proposed methodology requires one preliminary cerebral zones segmentation performed using a new Gaussian mixture model based on various databases atlases. Afterward, lesion segmentation begins with the estimation of a lesion map, which is then subjected to threshold constraints and refined by a new lesion expansion algorithm. The evaluation was carried out on four clinical databases integrating various clinical cases which had different lesion loads and were presented by a set of MRI modalities at several noise levels. The results compared with those of the existing methods proved excellent cerebral segmentation with dice averages close to 0.8 and sensitivity and specificity averages greater than 0.9. In addition, depending on the used database, the lesion segmentation recorded mean values were close to or greater than 0.8 for the different metrics. The detection error and outline error averages were about 0.3. Besides the ability to identify the lesions affecting the different parts of the brain, even those spreading in the gray matter, the proposed methodology identified the lesions cores and their surrounding vasogenic edema. This has been thoroughly tested and validated by highly qualified radiologists and neurologists. The evaluation of the resulting discriminations recorded values close to or greater than 0.9 for dice, sensitivity, and specificity. As a valuable benefit, a computer aided diagnosis tool could be offered to clinicians. It would help efficiently during the MS diagnosis and avoid several confusions. Besides, it could be used for longitudinal survey and henceforth extends to other pathologies that could be explored by MRI modalities, such as glioblastoma or alzheimer's disease. PMID- 29035223 TI - fmpRPMF: A Web Implementation for Protein Identification by Robust Peptide Mass Fingerprinting. AB - Peptide mass fingerprinting continues to play an important role in current proteomics studies based on its good performance in sample throughput, specificity for single peptides, and insensitive to unexpected post-translational modifications as compared with . Here, we proposed and evaluated the use of feature-matching pattern-based support vector machines (SVMs) for robust protein identification. This approach is now facilitated with an updated web server (fmpRPMF) incorporated with several newly developed or improved modules and workflows allowing identification of proteins from data. PMID- 29035224 TI - Efficient Local Search for Euclidean Path-Difference Median Trees. AB - Synthesizing large-scale phylogenetic trees is a fundamental problem in evolutionary biology. Median tree problems have evolved as a powerful tool to reconstruct such trees. Such problems seek a median tree for a given collection of input trees under some problem-specific tree distance. There has been an increased interest in the median tree problem for the classical path-difference distance between trees. While this problem is NP-hard, standard local search heuristics have been described that are based on solving a local search problem exactly. For a more effective heuristic we devise a time efficient algorithm for the local search problem that improves on the best-known solution by a factor of n, where n is the size of the input trees. Furthermore, we introduce a novel hybrid version of the standard local search that is exploiting our new algorithm for a more refined heuristic search. Finally, we demonstrate the performance of our hybrid heuristic in a comparative study with other commonly used methods that synthesize species trees using published empirical data sets. PMID- 29035227 TI - Bayesian Nonparametric Regression Modeling of Panel Data for Sequential Classification. AB - This paper proposes a Bayesian nonparametric regression model of panel data for sequential pattern classification. The proposed method provides a flexible and parsimonious model that allows both time-independent spatial variables and time dependent exogenous variables to be predictors. Not only this method improves the accuracy of parameter estimation for limited data, but also it facilitates model interpretation by identifying statistically significant predictors with hypothesis testing. Moreover, as the data length approaches infinity, posterior consistency of the model is guaranteed for general data-generating processes under regular conditions. The resulting model of panel data can also be used for sequential classification. The proposed method has been tested by numerical simulation, then validated on an econometric public data set, and subsequently validated for detection of combustion instabilities with experimental data that have been generated in a laboratory environment. PMID- 29035225 TI - A Review of Automated Methods for Detection of Myocardial Ischemia and Infarction Using Electrocardiogram and Electronic Health Records. AB - There is a growing body of research focusing on automatic detection of ischemia and myocardial infarction (MI) using computer algorithms. In clinical settings, ischemia and MI are diagnosed using electrocardiogram (ECG) recordings as well as medical context including patient symptoms, medical history, and risk factors information that is often stored in the electronic health records. The ECG signal is inspected to identify changes in the morphology such as ST-segment deviation and T-wave changes. Some of the proposed methods compute similar features automatically while others use nonconventional features such as wavelet coefficients. This review provides an overview of the methods that have been proposed in this area, focusing on their historical evolution, the publicly available datasets that they have used to evaluate their performance, and the details of their algorithms for ECG and EHR analysis. The validation strategies that have been used to evaluate the performance of the proposed methods are also presented. Finally, the paper provides recommendations for future research to address the shortcomings of the currently existing methods and practical considerations to make the proposed technical solutions applicable in clinical practice. PMID- 29035226 TI - Evaluating Approaches to Rendering Braille Text on a High-Density Pin Display. AB - Refreshable displays for tactile graphics are typically composed of pins that have smaller diameters and spacing than standard braille dots. We investigated configurations of high-density pins to form braille text on such displays using non-refreshable stimuli produced with a 3D printer. Normal dot braille (diameter 1.5 mm) was compared to high-density dot braille (diameter 0.75 mm) wherein each normal dot was rendered by high-density simulated pins alone or in a cluster of pins configured in a diamond, X, or square; and to "blobs" that could result from covering normal braille and high-density multi-pin configurations with a thin membrane. Twelve blind participants read MNREAD sentences displayed in these conditions. For high-density simulated pins, single pins were as quickly and easily read as normal braille, but diamond, X, and square multi-pin configurations were slower and/or harder to read than normal braille. We therefore conclude that as long as center-to-center dot spacing and dot placement is maintained, the dot diameter may be open to variability for rendering braille on a high density tactile display. PMID- 29035228 TI - Universal Approximation by Using the Correntropy Objective Function. AB - Several objective functions have been proposed in the literature to adjust the input parameters of a node in constructive networks. Furthermore, many researchers have focused on the universal approximation capability of the network based on the existing objective functions. In this brief, we use a correntropy measure based on the sigmoid kernel in the objective function to adjust the input parameters of a newly added node in a cascade network. The proposed network is shown to be capable of approximating any continuous nonlinear mapping with probability one in a compact input sample space. Thus, the convergence is guaranteed. The performance of our method was compared with that of eight different objective functions, as well as with an existing one hidden layer feedforward network on several real regression data sets with and without impulsive noise. The experimental results indicate the benefits of using a correntropy measure in reducing the root mean square error and increasing the robustness to noise. PMID- 29035229 TI - Transductive Zero-Shot Learning With Adaptive Structural Embedding. AB - Zero-shot learning (ZSL) endows the computer vision system with the inferential capability to recognize new categories that have never seen before. Two fundamental challenges in it are visual-semantic embedding and domain adaptation in cross-modality learning and unseen class prediction steps, respectively. This paper presents two corresponding methods named Adaptive STructural Embedding (ASTE) and Self-PAced Selective Strategy (SPASS) for both challenges. Specifically, ASTE formulates the visual-semantic interactions in a latent structural support vector machine framework by adaptively adjusting the slack variables to embody different reliablenesses among training instances. To alleviate the domain shift problem in ZSL, SPASS borrows the idea from self-paced learning by iteratively selecting the unseen instances from reliable to less reliable to gradually adapt the knowledge from the seen domain to the unseen domain. Consequently, by combining SPASS and ASTE, we present a self-paced Transductive ASTE (TASTE) method to progressively reinforce the classification capacity. Extensive experiments on three benchmark data sets (i.e., AwA, CUB, and aPY) demonstrate the superiorities of ASTE and TASTE. Furthermore, we also propose a fast training (FT) strategy to improve the efficiency of most existing ZSL methods. The FT strategy is surprisingly simple and general enough, which speeds up the training time of most existing ZSL methods by 4~300 times while holding the previous performance. PMID- 29035230 TI - A Deep Machine Learning Method for Classifying Cyclic Time Series of Biological Signals Using Time-Growing Neural Network. AB - This paper presents a novel method for learning the cyclic contents of stochastic time series: the deep time-growing neural network (DTGNN). The DTGNN combines supervised and unsupervised methods in different levels of learning for an enhanced performance. It is employed by a multiscale learning structure to classify cyclic time series (CTS), in which the dynamic contents of the time series are preserved in an efficient manner. This paper suggests a systematic procedure for finding the design parameter of the classification method for a one versus-multiple class application. A novel validation method is also suggested for evaluating the structural risk, both in a quantitative and a qualitative manner. The effect of the DTGNN on the performance of the classifier is statistically validated through the repeated random subsampling using different sets of CTS, from different medical applications. The validation involves four medical databases, comprised of 108 recordings of the electroencephalogram signal, 90 recordings of the electromyogram signal, 130 recordings of the heart sound signal, and 50 recordings of the respiratory sound signal. Results of the statistical validations show that the DTGNN significantly improves the performance of the classification and also exhibits an optimal structural risk. PMID- 29035231 TI - On Adaptive Boosting for System Identification. AB - In the field of machine learning, the algorithm Adaptive Boosting has been successfully applied to a wide range of regression and classification problems. However, to the best of the authors' knowledge, the use of this algorithm to estimate dynamical systems has not been exploited. In this brief, we explore the connection between Adaptive Boosting and system identification, and give examples of an identification method that makes use of this connection. We prove that the resulting estimate converges to the true underlying system for an output-error model structure under reasonable assumptions in the large sample limit and derive a bound of the model mismatch for the noise-free case. PMID- 29035232 TI - Stability Analysis of Optimal Adaptive Control Under Value Iteration Using a Stabilizing Initial Policy. AB - Adaptive optimal control using value iteration initiated from a stabilizing control policy is theoretically analyzed. The analysis is in terms of stability of the system during the learning stage and includes the system controlled by any fixed control policy and also by an evolving policy. A feature of the presented results is finding subsets of the region of attraction. This is done so that if the initial condition belongs to this region, the entire state trajectory remains within the training region. Therefore, the function approximation results remain reliable, as no extrapolation will be conducted. PMID- 29035233 TI - GII Representation-Based Cross-View Gait Recognition by Discriminative Projection With List-Wise Constraints. AB - Remote person identification by gait is one of the most important topics in the field of computer vision and pattern recognition. However, gait recognition suffers severely from the appearance variance caused by the view change. It is very common that gait recognition has a high performance when the view is fixed but the performance will have a sharp decrease when the view variance becomes significant. Existing approaches have tried all kinds of strategies like tensor analysis or view transform models to slow down the trend of performance decrease but still have potential for further improvement. In this paper, a discriminative projection with list-wise constraints (DPLC) is proposed to deal with view variance in cross-view gait recognition, which has been further refined by introducing a rectification term to automatically capture the principal discriminative information. The DPLC with rectification (DPLCR) embeds list-wise relative similarity measurement among intraclass and inner-class individuals, which can learn a more discriminative and robust projection. Based on the original DPLCR, we have introduced the kernel trick to exploit nonlinear cross view correlations and extended DPLCR to deal with the problem of multiview gait recognition. Moreover, a simple yet efficient gait representation, namely gait individuality image (GII), based on gait energy image is proposed, which could better capture the discriminative information for cross view gait recognition. Experiments have been conducted in the CASIA-B database and the experimental results demonstrate the outstanding performance of both the DPLCR framework and the new GII representation. It is shown that the DPLCR-based cross-view gait recognition has outperformed the-state-of-the-art approaches in almost all cases under large view variance. The combination of the GII representation and the DPLCR has further enhanced the performance to be a new benchmark for cross-view gait recognition. PMID- 29035234 TI - A Generalized Methodology for Data Analysis. AB - Based on a critical analysis of data analytics and its foundations, we propose a functional approach to estimate data ensemble properties, which is based entirely on the empirical observations of discrete data samples and the relative proximity of these points in the data space and hence named empirical data analysis (EDA). The ensemble functions include the nonparametric square centrality (a measure of closeness used in graph theory) and typicality (an empirically derived quantity which resembles probability). A distinctive feature of the proposed new functional approach to data analysis is that it does not assume randomness or determinism of the empirically observed data, nor independence. The typicality is derived from the discrete data directly in contrast to the traditional approach, where a continuous probability density function is assumed a priori. The typicality is expressed in a closed analytical form that can be calculated recursively and, thus, is computationally very efficient. The proposed nonparametric estimators of the ensemble properties of the data can also be interpreted as a discrete form of the information potential (known from the information theoretic learning theory as well as the Parzen windows). Therefore, EDA is very suitable for the current move to a data-rich environment, where the understanding of the underlying phenomena behind the available vast amounts of data is often not clear. We also present an extension of EDA for inference. The areas of applications of the new methodology of the EDA are wide because it concerns the very foundation of data analysis. Preliminary tests show its good performance in comparison to traditional techniques. PMID- 29035235 TI - Asymmetric Game: A Silver Bullet to Weighted Vertex Cover of Networks. AB - Weighted vertex cover (WVC), a generalized type of vertex cover, is one of the most important combinatorial optimization problems. In this paper, we provide a novel solution to the WVC problem from the view of network engineering. We model the WVC problem as an asymmetric game on weighted networks, where each vertex is treated as an intelligent rational agent rather than an inanimate one. Under the framework of asymmetric game, we find that strict Nash equilibriums of the asymmetric game are the intermediate states between the WVC states and the minimum WVC (MWVC) states. Besides, we propose best response algorithms with memory and feedback to solve the WVC problem, and find that a better approximate solution to the MWVC can be obtained under the feedback-based best response algorithm. Numerical illustrations verify the performance of the proposed game solution on weighted networks. Our findings pave a new way to solve the WVC problem from the perspective of asymmetric game, which opens a bottom-up avenue to address the combinatorial optimization problems. PMID- 29035236 TI - Fuzzy Adaptive Compensation Control of Uncertain Stochastic Nonlinear Systems With Actuator Failures and Input Hysteresis. AB - Hysteresis exists ubiquitously in physical actuators. Besides, actuator failures/faults may also occur in practice. Both effects would deteriorate the transient tracking performance, and even trigger instability. In this paper, we consider the problem of compensating for actuator failures and input hysteresis by proposing a fuzzy control scheme for stochastic nonlinear systems. Compared with the existing research on stochastic nonlinear uncertain systems, it is found that how to guarantee a prescribed transient tracking performance when taking into account actuator failures and hysteresis simultaneously also remains to be answered. Our proposed control scheme is designed on the basis of the fuzzy logic system and backstepping techniques for this purpose. It is proven that all the signals remain bounded and the tracking error is ensured to be within a preestablished bound with the failures of hysteretic actuator. Finally, simulations are provided to illustrate the effectiveness of the obtained theoretical results. PMID- 29035237 TI - Robust Adaptive Fuzzy Control of a Class of Uncertain Nonlinear Systems With Unstable Dynamics and Mismatched Disturbances. AB - This paper studies the robust stabilization problem for a class of uncertain nonlinear systems with unstable zero dynamics. The considered zero dynamic is not assumed to be input-to-state practically stable and contains nonlinear uncertainties and mismatched external disturbances. A new robust adaptive fuzzy control method is developed by combining theory with backstepping technique. First, an ideal virtual control function is designed, which can guarantee the zero dynamic asymptotically stable with a suboptimal performance. Then, based on some non-negative functions and backstepping design, the actual controller is constructed for the overall system, which ensures that the tracking error for the ideal virtual control signal converges to a priori accuracy regardless of external disturbances. In this design, an auxiliary signal is introduced to overcome the difficulties from the unavailable virtual reference signal. By exploiting the implicit function theorem, the proposed design technique is directly applied to a special case, where the zero dynamic is partially linear. A two inverted pendulums is used to illustrate the application and effectiveness of the proposed design method. PMID- 29035238 TI - Neuroadaptive Control of Strict Feedback Systems With Full-State Constraints and Unknown Actuation Characteristics: An Inexpensive Solution. AB - In this paper, we present a neuroadaptive control for a class of uncertain nonlinear strict-feedback systems with full-state constraints and unknown actuation characteristics where the break points of the dead-zone model are considered as time-variant. In order to deal with the modeling uncertainties and the impact of the nonsmooth actuation characteristics, neural networks are utilized at each step of the backstepping design. By using barrier Lyapunov function, together with the concept of virtual parameter, we develop a neuroadaptive control scheme ensuring tracking stability and at the same time maintaining full-state constraints. The proposed control strategy bears the structure of proportional-integral (PI) control, with the PI gains being automatically and adaptively determined, making its design less demanding and its implementation less costly. Both theoretical analysis and numerical simulation validate the benefits and the effectiveness of the proposed method. PMID- 29035239 TI - Diagnosis of Trichomoniasis in Male Patients on Performing Nested Polymerase Chain Reaction. AB - OBJECTIVE: Trichomoniasis is a parasitic infection that occurs with the settlement of Trichomonas vaginalis in female and male urinary and reproductive tracts. This infection is generally asymptomatic in males, and males are thought to be a carrier for the transmission of infection. In this study, our aim was to detect trichomoniasis using nested polymerase chain reaction among males who were referred to a hospital with suspected urinary tract infection. METHODS: Urine samples were collected from 138 male patients between 18 and 50 years of age who were referred with suspected urinary system infection to the Urology Outpatient Clinic at Malatya University Medical Center Malatya between December 2013 and May 2014. Direct microscopy, two different culture methods, and nested Polymerase chain reaction (PCR) were performed for the investigation of T. vaginalis in urine samples. RESULTS: Urinary tract infection was diagnosed in 47 of the 138 patients according to white and red blood cell counts in the urine samples. T. vaginalis infection was detected in 6.5% (9/138) of the suspected patients by nested PCR, while none of the samples tested positive by direct microscopy and culture examinations. Statistical significance was found between infection of the urinary tract and nested PCR positivity for T. vaginalis. CONCLUSIONS: According to our results, nested PCR is the most sensitive method for the detection of trichomoniasis in male patients. We strongly recommend using nested PCR for the differential diagnosis of urinary infections in males. PMID- 29035240 TI - Seroprevalence of Neospora caninum in Dairy Cattle Raised in Cicekdagi District of Kirsehir Province. AB - OBJECTIVE: Neospora caninum is one of the most important causes of abortion in cattle worldwide and causes significant economic losses in the meat and dairy industries. This study aimed to determine the seroprevalence of N. caninum in dairy cattle raised in Cicekdagi district of Kirsehir province. METHODS: One hundred sixteen serum samples collected from dairy cattle were analyzed for N. caninum antibodies by a commercial Enzyme-Linked ImmunoSorbent Assay (ELISA) kit (VMRD c-ELISA). RESULTS: The seropositivity rate was 18.1% in the cattle examined. The seroprevalence of N. caninum was 23.4% in dairy cattle with fertility problems, 33.3% in cattle with a history of abortion, and 7.8% in clinically healthy dairy cattle (p=0.006). Cattle breeds with highest seropositivity rates were Holstein, Simmental, and Brown Swiss (p=0.008). CONCLUSION: Control measures should be taken for both dogs as final host of the parasite cattle to prevent the spread of neosporosis in cattle in Cicekdagi district. PMID- 29035241 TI - Eustigmaeus johnstoni Zhang - Gerson (Acari: Stigmaeidae) a Parasitic Mite Species Detected in Phlebotomus papatasi (Diptera: Psychodidae) Specimens Collected from Aydin, Turkey. AB - OBJECTIVE: We aimed to report the presence of the parasitic mite Eustigmaeus johnstoni Zhang - Gerson (E. johnstoni) on the sand fly species Phlebotomus papatasi (P. papatasi) collected in Aydin province, Turkey. METHODS: Sand flies were collected from nature by CDC light traps in Nazilli town in Aydin province and were separated according to collection localities. Head and genital areas were cut and mounted for species identification, and midgut contents were checked for the possible presence of Leishmania parasites under a light microscope. Mites detected in sand flies were diagnosed on the species level based on the literature. RESULTS: A total of 360 female and 378 male sand flies were caught. During dissection and preparation, two female E. johnstoni parasitic mite specimens belonging to the genus Eustigmaeus were detected on the abdominal pleura of P. papatasi specimens. CONCLUSION: To our knowledge, this is the first study to report the presence E. johnstoni on P. papatasi in Turkey. Previous studies showing the relationship between parasitic mites and sand flies have indicated that this relationship is not accidental. More studies are needed to understand this relationship for obtaining more detailed information. PMID- 29035242 TI - The Effect of Skin Sebum, pH, and Moisture on Demodex Infestation in Acne Vulgaris and Rosacea Patients. AB - OBJECTIVE: Acne vulgaris is an inflammatory disease involving the pilosebaceous unit. Rosacea is a chronic inflammatory skin disease that affects the face in particular. This study aimed to determine if skin sebum, pH, and moisture affect the number of Demodex spp. in acne vulgaris and rosacea patients. METHODS: This study focused on 30 patients each with acne vulgaris and rosacea. As a control group, 60 healthy individuals were included. RESULTS: In acne vulgaris patients, when compared to those with Demodex mite more than 5 /cm2 in each area, less than 5/cm2 were found to be oily, acidic, dry or very dry. However, there was no significant difference in moisture value. In patients with rosacea, the skin was acidic and dry in patients those with more than 5/cm2 Demodex mites when compared to those with demodex mite less than 5 /cm2 in patients in each of the right cheek and nose areas. There was no difference in skin oil level. CONCLUSION: The oily, acidic, dry, and very dry skin of the acne vulgaris patients and the oily, acidic, and very dry skin of the rosacea patients are factors facilitating the development of Demodex ssp. PMID- 29035243 TI - Seroprevalence of Toxoplasma gondii in Sheep from Nevsehir Province inTurkey. AB - OBJECTIVE: The goal of this study was to investigate the seroprevalence of Toxoplasma gondii (T. gondii) in sheep from Nevsehir Province in Turkey. METHODS: Blood samples were taken from 180 sheep aged between 1 and 7 years, which were randomly selected from seven different study sites in Nevsehir Province. The enzyme-linked immunosorbent assay (ELISA) for the detection of antibodies to T. gondii was performed on all the serum samples. RESULTS: Eighteen (10%) serum samples were found to be seropositive for T. gondii antibodies. The highest seropositivity rate (11.53%) was found in sheep aged between 1 and 2 years, whereas the lowest seropositivity rate (8.51%) was found in sheep aged between 5 and 7 years old. Eighteen of the 162 ewes (11.1%) were found to be seropositive, whereas none of the 18 tested rams were seropositive. In addition, considering the study site location, the highest seropositivity rate was in Avanos (32%), whereas the lowest seropositivity rate was in Kozakli (2.9%). The T. gondii seropositivity rates were statistically insignificant with regard to age groups and gender (p>0.05), whereas they were statistically significant (p<0.05) with regard to study centers. CONCLUSION: This is the first serological report on toxoplasmosis in sheep from Nevsehir Province in Turkey. PMID- 29035244 TI - Cryopreservation of Leishmania Species in Manisa Province. AB - OBJECTIVE: It was aimed to assess the success of the cryopreservation process which is carried out in order to preserve the genetic material and the virulence of the Leishmania species that are an important health problem in our region. METHODS: Leishmania tropica, L. infantum, L. major, and L. donovani strains in Novy-MacNeal-Nicolle (NNN) medium in MCBU were used. Promastigotes cultured in the NNN medium were transferred to RPMI 1640 medium; promastigotes in the logarithmic phase were washed three times with PBS, and 15% dimethylsulfoxide (DMSO) was added. Leishmania species were transferred to 12 separate tubes. The tubes were stored at -86 degrees C for one night by placing them in Coolcell boxes. The tubes were transferred into a liquid nitrogen tank. One cryotube per Leishmania strain is thawed monthly and cultured in NNN medium. RESULTS: For the duration of study it was observed that each Leishmania isolate preserved 60-65% of their viability and entered the logarithmic phase on the 7th day following the inoculation in the NNN medium. Abnormalities in the structures and movements of the promastigotes were not observed in microscopic examinations. CONCLUSION: The following conclusions were made: cryopreservation is important for studies planned related to leishmaniasis and cryopreservation with DMSO is successful. PMID- 29035245 TI - In vivo and in vitro Models for Scanning Drug Substances in Malaria: Prestudy. AB - OBJECTIVE: The Wolrd Health Organization (WHO) encourages all countries to investigate antimalarial drug substances derived from herbal sources with the slogan "Hunt of the Next Artemisinin" due to the emergence of resistant strains of Plasmodium species to artemisinin. In the broad and simple sense, it was planned to help guide the young researchers set in-vitro and in-vivo models of malaria in order to be used in drug research and active ingredient studies. METHODS: In-vitro study, young Plasmodium berghei trophozoites were removed from the liquid nitrogen tank and resuspended in appropriate conditions, followed by incubation with chloroquine and tetracycline at concentrations of 0.1, 0.4, 0.8, 1.6, 6.4, 12.8 MUg/mL for 24 hours at +37 degrees C in a shaking incubator. In vivo studies, Tetracycline group (TG) and Chloroquine group (KG) were administered 50 mg/kg of tetracycline and chloroquine by intragastric lavage and untreated control group (TACG) were administered the same amount of saline via the same route. The suppression of parasitemia in mice was followed for 24 days. RESULTS: In our in-vitro study it was observed that 0.8 MUg/mL of chloroquine and 1.6 MUg/mL of tetracycline was enough to suppress parasitemia. In our in-vivo drug study, all of the mice in the TG group died at day 24, and all of the mice in the TAKG group died at day 12, with no parasitemia observed in the mice in the KG group. CONCLUSION: Our study suggests that if tetracycline therapy is administered when the induction of chloroquine therapy is delayed, the exacerbation of the parasitemia may be prevented and when chloroquine is obtained chloroquine therapy can be commenced thus preventing the loss of the patient. PMID- 29035246 TI - Effect of Extracts of the Endemic Plants Centaurea lydia and Phlomis nissolii on Toxoplasma gondii. AB - OBJECTIVE: This study aimed to investigate the potential antitoxoplasma activities of extracts of the endemic plants Centaurea lydia and Phlomis nissolii in a fibroblast cell culture infected with T. gondii trophozoites. METHODS: WI-38 cell lines treated with plant extracts (55 MUg/mL each) and an untreated control were infected with 5*105 T. gondii trophozoites, and the number of parasites in the medium was determined on days 7, 14, and 24. RESULTS: No cytotoxic effects of C. lydia and P. nissolii extracts were detected at concentrations of 0.86-55 MUg/mL in the WI-38 cell line, and the absence of the cytotoxicity of these extracts on the fibroblast cell line was considered as a positive effect. C. lydia extract at 55 MUg/mL had marked activity against T. gondii trophozoites. A 47.5-fold increase was observed in the number of trophozoites in the control group, while a 84-fold decrease was found in the C. lydia extract group. However, a 36-fold increase was detected in the P. nissolii extract group, indicating no antitoxoplasma activity. CONCLUSION: The extract of C. lydia, an endemic plant, was found to be a good drug candidate for treating toxoplasmosis. The in vitro activity of the extract of this endemic plant should be further investigated in animal models in vivo. PMID- 29035247 TI - Importance of Land Snails in Dicrocoeliosis Epidemiology. AB - Dicrocoeliosis is a helminthosis caused by the small liver fluke Dicrocoelium spp. (Trematoda, Dicrocoeliidae) parasitizing in the bile ducts and gall bladder of ruminants as well as many other animal species including humans. In the biological life cycle of Dicrocoelium, land snails are first intermediate hosts and ants are second intermediate hosts. Sporocysts and cercaria, which are larval stages, live in the hepatopancreas of land snails and metacercaria, which is also the larval stage, lives in the abdomen and brain of ants. Land snails, which are the first intermediate host of this parasite in Turkey, include Helicopsis derbentina, Helicopsis protea, Helicopsis krynickii, Cernuella virgata, Trochoidea pyramidata, Cochicella acuta, Monacha carthusiana, Helicella candicans, Helix aspersa, Helix lucorum, and Chondrus tournefortianus. Dicrocoeliosis is widespread in ruminants and affects their liver, which can lead to weight loss and reduced milk production. The number of reports on dicrocoeliosis is increasing due to the expansion of dry habitats and parasites becoming resistant to antihelminthic drugs. This study provides information on the epidemiology and control methods of Dicrocoelium. PMID- 29035248 TI - Furuncular Myiasis Caused by Dermatobia hominis in a Traveler Returning from the Amazon Jungle. AB - A 39-year-old man who was returning from the Amazon Jungle and had no medical history presented with a furuncular lesion on his right parietal scalp. Despite receiving appropriate antimicrobial treatment, his lesion did not heal. After surgical intervention, a Dermatobia hominis larva was extracted. The human botfly D. hominis is the most common causative agent of furuncular myiasis among travelers returning from Central and South America. Surgery is the main treatment option, and secondary bacterial infection should be kept in mind. PMID- 29035249 TI - Chronic Hepatitis B and Leishmania Coinfection. AB - Visceral leishmaniasis is an endemic disease in many parts of world, and if untreated, it is a potentially life-threatening infectious disease. It is similar to chronic liver disease because of signs and symptoms such as fever, weight loss, hepatosplenomegaly, and pancytopenia. In this study, we present a case of visceral leishmaniasis, which is known to be a chronic hepatitis B infection, that was coincidentally diagnosed with liver biopsy. Visceral leishmaniasis should be considered as an infectious disease in the differential diagnosis of chronic liver diseases. PMID- 29035250 TI - Rare But Life-Threatening Complication of Hydatid Disease. AB - Cystic echinococcosis is an infectious disease that is potentially associated with the biliary tract. Of thousand cases of hydatid cysts that were successfully treated by the Ormeci method, only two presented with cholangitis subsequent to the percutaneous treatment. These cases were treated with endoscopic retrograde cholangiopancreatography, and this study provides details regarding the clear fistulization of hydatid cysts into the biliary tract. PMID- 29035252 TI - Atmospheric transport of trace elements and nutrients to the oceans. AB - This paper reviews atmospheric inputs of trace elements and nutrients to the oceans in the context of the GEOTRACES programme and provides new data from two Atlantic GEOTRACES cruises. We consider the deposition of nitrogen to the oceans, which is now dominated by anthropogenic emissions, the deposition of mineral dust and related trace elements, and the deposition of other trace elements which have a mixture of anthropogenic and dust sources. We then consider the solubility (as a surrogate for bioavailability) of the various elements. We consider briefly the sources, atmospheric transport and transformations of these elements and how this results in strong spatial deposition gradients. Solubility of the trace elements also varies systematically between elements, reflecting their sources and cycling, and for some trace elements there are also systematic gradients in solubility related to dust loading. Together, these effects create strong spatial gradients in the inputs of bioavailable trace elements to the oceans, and we are only just beginning to understand how these affect ocean biogeochemistry.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035251 TI - How well can we quantify dust deposition to the ocean? AB - Deposition of continental mineral aerosols (dust) in the Eastern Tropical North Atlantic Ocean, between the coast of Africa and the Mid-Atlantic Ridge, was estimated using several strategies based on the measurement of aerosols, trace metals dissolved in seawater, particulate material filtered from the water column, particles collected by sediment traps and sediments. Most of the data used in this synthesis involve samples collected during US GEOTRACES expeditions in 2010 and 2011, although some results from the literature are also used. Dust deposition generated by a global model serves as a reference against which the results from each observational strategy are compared. Observation-based dust fluxes disagree with one another by as much as two orders of magnitude, although most of the methods produce results that are consistent with the reference model to within a factor of 5. The large range of estimates indicates that further work is needed to reduce uncertainties associated with each method before it can be applied routinely to map dust deposition to the ocean. Calculated dust deposition using observational strategies thought to have the smallest uncertainties is lower than the reference model by a factor of 2-5, suggesting that the model may overestimate dust deposition in our study area.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035253 TI - Overview of the mechanisms that could explain the 'Boundary Exchange' at the land ocean contact. AB - Land to ocean transfer of material largely controls the chemical composition of seawater and the global element cycles. Oceanic isotopic budgets of chemical species, macro- and micronutrients (e.g. Nd, Sr, Si, Mg, Zn, Mo and Ni) have revealed an imbalance between their sources and sinks. Radiogenic isotope budgets underlined the importance of taking into account continental margins as a source of elements to oceans. They also highlighted that the net land-ocean inputs of chemical species probably result from particle-dissolved exchange processes, named 'Boundary Exchange'. Yet, locations where 'Boundary Exchange' occurs are not clearly identified and reviewed here: discharge of huge amount of freshly weathered particles at the river mouths, submarine weathering of deposited sediments along the margins, submarine groundwater discharges and subterranean estuaries. As a whole, we conclude that all of them might contribute to 'Boundary Exchange'. Highlighting their specific roles and the processes at play is a key scientific issue for the second half of GEOTRACES.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035254 TI - Quantifying He fluxes from the mantle using multi-tracer data assimilation. AB - A global, coarse-resolution ocean model previously fitted to geostrophic shear estimates and to data of 10 hydrographic parameters and tracers has been used to simulate the 3He and 4He distributions resulting from the release of mantle helium from mid-ocean ridges. The model is in very good agreement with 14C and chlorofluorocarbon data and has realistic global ocean overturning strength as well as water mass formation and transport rates. It is found that previously published global mantle 3He fluxes are too high by a factor of about 2. In the model, optimal agreement of modelled delta3He with data is achieved for a global flux of 450 +/- 50 mol 3He yr-1 The formulation of He source strengths proportional to ridge spreading rates appears compatible with data. A model/data misfit analysis shows significant and large-scale delta3He underestimation in the southwestern Pacific centred over the Lau Backarc Basin (approx. 179 degrees W/20 degrees S). These misfits disappear in a set-up with 30 of the 450 mol yr-1 global total 3He flux released in the Lau Basin over a depth range between 1250 and 2500 m. Such He flux contributions are missing in present mantle He source compilations. Hydrothermal fluxes of other trace elements and isotopes (TEI) can be calculated from He fluxes on the basis of TEI : He ratios measured close to the sources.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035255 TI - Diagnosing oceanic nutrient deficiency. AB - The supply of a range of nutrient elements to surface waters is an important driver of oceanic production and the subsequent linked cycling of the nutrients and carbon. Relative deficiencies of different nutrients with respect to biological requirements, within both surface and internal water masses, can be both a key indicator and driver of the potential for these nutrients to become limiting for the production of new organic material in the upper ocean. The availability of high-quality, full-depth and global-scale datasets on the concentrations of a wide range of both macro- and micro-nutrients produced through the international GEOTRACES programme provides the potential for estimation of multi-element deficiencies at unprecedented scales. Resultant coherent large-scale patterns in diagnosed deficiency can be linked to the interacting physical-chemical-biological processes which drive upper ocean nutrient biogeochemistry. Calculations of ranked deficiencies across multiple elements further highlight important remaining uncertainties in the stoichiometric plasticity of nutrient ratios within oceanic microbial systems and caveats with regards to linkages to upper ocean nutrient limitation.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035256 TI - Impact of hydrothermalism on the ocean iron cycle. AB - As the iron supplied from hydrothermalism is ultimately ventilated in the iron limited Southern Ocean, it plays an important role in the ocean biological carbon pump. We deploy a set of focused sensitivity experiments with a state of the art global model of the ocean to examine the processes that regulate the lifetime of hydrothermal iron and the role of different ridge systems in governing the hydrothermal impact on the Southern Ocean biological carbon pump. Using GEOTRACES section data, we find that stabilization of hydrothermal iron is important in some, but not all regions. The impact on the Southern Ocean biological carbon pump is dominated by poorly explored southern ridge systems, highlighting the need for future exploration in this region. We find inter-basin differences in the isopycnal layer onto which hydrothermal Fe is supplied between the Atlantic and Pacific basins, which when combined with the inter-basin contrasts in oxidation kinetics suggests a muted influence of Atlantic ridges on the Southern Ocean biological carbon pump. Ultimately, we present a range of processes, operating at distinct scales, that must be better constrained to improve our understanding of how hydrothermalism affects the ocean cycling of iron and carbon.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035257 TI - Southern Ocean biological iron cycling in the pre-whaling and present ecosystems. AB - This study aimed to create the first model of biological iron (Fe) cycling in the Southern Ocean food web. Two biomass mass-balanced Ecopath models were built to represent pre- and post-whaling ecosystem states (1900 and 2008). Functional group biomasses (tonnes wet weight km-2) were converted to biogenic Fe pools (kg Fe km-2) using published Fe content ranges. In both models, biogenic Fe pools and consumption in the pelagic Southern Ocean were highest for plankton and small nektonic groups. The production of plankton biomass, particularly unicellular groups, accounted for the highest annual Fe demand. Microzooplankton contributed most to biological Fe recycling, followed by carnivorous zooplankton and krill. Biological Fe recycling matched previous estimates, and, under most conditions, could entirely meet the Fe demand of bacterioplankton and phytoplankton. Iron recycling by large baleen whales was reduced 10-fold by whaling between 1900 and 2008. However, even under the 1900 scenario, the contribution of whales to biological Fe recycling was negligible compared with that of planktonic consumers. These models are a first step in examining oceanic-scale biological Fe cycling, highlighting gaps in our present knowledge and key questions for future research on the role of marine food webs in the cycling of trace elements in the sea.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035258 TI - Neodymium in the oceans: a global database, a regional comparison and implications for palaeoceanographic research. AB - The neodymium (Nd) isotopic composition of seawater has been used extensively to reconstruct ocean circulation on a variety of time scales. However, dissolved neodymium concentrations and isotopes do not always behave conservatively, and quantitative deconvolution of this non-conservative component can be used to detect trace metal inputs and isotopic exchange at ocean-sediment interfaces. In order to facilitate such comparisons for historical datasets, we here provide an extended global database for Nd isotopes and concentrations in the context of hydrography and nutrients. Since 2010, combined datasets for a large range of trace elements and isotopes are collected on international GEOTRACES section cruises, alongside classical nutrient and hydrography measurements. Here, we take a first step towards exploiting these datasets by comparing high-resolution Nd sections for the western and eastern North Atlantic in the context of hydrography, nutrients and aluminium (Al) concentrations. Evaluating those data in tracer-tracer space reveals that North Atlantic seawater Nd isotopes and concentrations generally follow the patterns of advection, as do Al concentrations. Deviations from water mass mixing are observed locally, associated with the addition or removal of trace metals in benthic nepheloid layers, exchange with ocean margins (i.e. boundary exchange) and/or exchange with particulate phases (i.e. reversible scavenging). We emphasize that the complexity of some of the new datasets cautions against a quantitative interpretation of individual palaeo Nd isotope records, and indicates the importance of spatial reconstructions for a more balanced approach to deciphering past ocean changes.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035259 TI - The oceanic budgets of nickel and zinc isotopes: the importance of sulfidic environments as illustrated by the Black Sea. AB - Isotopic data collected to date as part of the GEOTRACES and other programmes show that the oceanic dissolved pool is isotopically heavy relative to the inputs for zinc (Zn) and nickel (Ni). All Zn sinks measured until recently, and the only output yet measured for Ni, are isotopically heavier than the dissolved pool. This would require either a non-steady-state ocean or other unidentified sinks. Recently, isotopically light Zn has been measured in organic carbon-rich sediments from productive upwelling margins, providing a potential resolution of this issue, at least for Zn. However, the origin of the isotopically light sedimentary Zn signal is uncertain. Cellular uptake of isotopically light Zn followed by transfer to sediment does not appear to be a quantitatively important process. Here, we present Zn and Ni isotope data for the water column and sediments of the Black Sea. These data demonstrate that isotopically light Zn and Ni are extracted from the water column, probably through an equilibrium fractionation between different dissolved species followed by sequestration of light Zn and Ni in sulfide species to particulates and the sediment. We suggest that a similar, non-quantitative, process, operating in porewaters, explains the Zn data from organic carbon-rich sediments.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035261 TI - The effect of acidification on the bioavailability and electrochemical lability of zinc in seawater. AB - A poorly studied but potentially important consequence of the CO2-induced acidification of the surface ocean is a possible change in the bioavailability of trace metals, which play a critical role in the productivity and population dynamics of marine ecosystems. We report laboratory and field experiments designed to compare quantitatively the effects of acidification on the bioavailability of Zn, a metal essential to the growth of phytoplankton and on the extent of its complexation by model and natural ligands. We observed a good correspondence between the effects of pH on the rate of Zn uptake by a model diatom and the chemical lability of Zn measured by anodic stripping voltammetry (ASV). In model laboratory systems, the chemical lability and the bioavailability of Zn could either increase or decrease at low pH depending on the mix of complexing ligands. In a sample of coastal surface water, we observed similar increases in the ASV-labile and bioavailable Zn concentrations upon acidification, a result contrary to previous observations. These results, which can likely be generalized to other bioactive trace metals, mutatis mutandis, demonstrate the intricacy of the effects of ocean acidification on the chemistry and the ecology of surface seawater.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035260 TI - Nitrite isotopes as tracers of marine N cycle processes. AB - Nitrite (NO2-) is a key intermediate in the marine nitrogen (N) cycle. It is produced and consumed throughout the ocean by the dominant processes driving the distribution, availability and speciation of N. However, the accumulation of nitrite is typically confined to depths near the base of the sunlit euphotic zone and in oxygen-deficient zones. These features are known as the primary and secondary nitrite maximum (PNM and SNM), respectively. The processes controlling nitrite accumulation in these features are not fully understood, but are thought to depend on the microbial community composition and its response to environmental conditions. A variety of approaches have been applied to understanding these features since their discovery, with the stable N and oxygen (O) isotope measurements of nitrite being added to this toolkit most recently. Large variations in nitrite N isotope ratios (15N/14N) and dramatic depletions in 15N contrast with more consistent nitrite O isotope ratios (18O/16O) in the SNM. These signals provide unique information about the mechanisms of nitrite consumption in the SNM. By contrast, nitrite in the PNM shows less variation in 15N/14N, but variations in 18O/16O that provide insight into the mechanisms and rates of N cycling there. This review presents a synthesis of nitrite isotope measurements in the marine environment, highlighting the insights that have been gained from these measurements.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035262 TI - An examination of the role of particles in oceanic mercury cycling. AB - Recent models of global mercury (Hg) cycling have identified the downward flux of sinking particles in the ocean as a prominent Hg removal process from the ocean. At least one of these models estimates the amount of anthropogenic Hg in the ocean to be about 400 Mmol, with deep water formation and sinking fluxes representing the largest vectors by which pollutant Hg is able to penetrate the ocean interior. Using data from recent cruises to the Atlantic, we examined the dissolved and particulate partitioning of Hg in the oceanic water column as a cross-check on the hypothesis that sinking particle fluxes are important. Interestingly, these new data suggest particle-dissolved partitioning (Kd) that is approximately 20* greater than previous estimates, which thereby challenges certain assumptions about the scavenging and active partitioning of Hg in the ocean used in earlier models. For example, the new particle data suggest that regenerative scavenging is the most likely mechanism by which the association of Hg and particles occurs.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035264 TI - Ocean trace element cycles. PMID- 29035263 TI - Developing a test-bed for robust research governance of geoengineering: the contribution of ocean iron biogeochemistry. AB - Geoengineering to mitigate climate change has long been proposed, but remains nebulous. Exploration of the feasibility of geoengineering first requires the development of research governance to move beyond the conceptual towards scientifically designed pilot studies. Fortuitously, 12 mesoscale (approx. 1000 km2) iron enrichments, funded to investigate how ocean iron biogeochemistry altered Earth's carbon cycle in the geological past, provide proxies to better understand the benefits and drawbacks of geoengineering. The utility of these iron enrichments in the geoengineering debate is enhanced by the GEOTRACES global survey. Here, we outline how GEOTRACES surveys and process studies can provide invaluable insights into geoengineering. Surveys inform key unknowns including the regional influence and magnitude of modes of iron supply, and stimulate iron biogeochemical modelling. These advances will enable quantification of interannual variability of iron supply to assess whether any future purposeful multi-year iron-fertilization meets the principle of 'additionality' (sensu Kyoto protocol). Process studies address issues including upscaling of geoengineering, and how differing iron-enrichment strategies could stimulate wide-ranging biogeochemical outcomes. In summary, the availability of databases on both mesoscale iron-enrichment studies and the GEOTRACES survey, along with modelling, policy initiatives and legislation have positioned the iron-enrichment approach as a robust multifaceted test-bed to assess proposed research into climate intervention.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035265 TI - Hydrothermal impacts on trace element and isotope ocean biogeochemistry. AB - Hydrothermal activity occurs in all ocean basins, releasing high concentrations of key trace elements and isotopes (TEIs) into the oceans. Importantly, the calculated rate of entrainment of the entire ocean volume through turbulently mixing buoyant hydrothermal plumes is so vigorous as to be comparable to that of deep-ocean thermohaline circulation. Consequently, biogeochemical processes active within deep-ocean hydrothermal plumes have long been known to have the potential to impact global-scale biogeochemical cycles. More recently, new results from GEOTRACES have revealed that plumes rich in dissolved Fe, an important micronutrient that is limiting to productivity in some areas, are widespread above mid-ocean ridges and extend out into the deep-ocean interior. While Fe is only one element among the full suite of TEIs of interest to GEOTRACES, these preliminary results are important because they illustrate how inputs from seafloor venting might impact the global biogeochemical budgets of many other TEIs. To determine the global impact of seafloor venting, however, requires two key questions to be addressed: (i) What processes are active close to vent sites that regulate the initial high-temperature hydrothermal fluxes for the full suite of TEIs that are dispersed through non-buoyant hydrothermal plumes? (ii) How do those processes vary, globally, in response to changing geologic settings at the seafloor and/or the geochemistry of the overlying ocean water? In this paper, we review key findings from recent work in this realm, highlight a series of key hypotheses arising from that research and propose a series of new GEOTRACES modelling, section and process studies that could be implemented, nationally and internationally, to address these issues.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035266 TI - Lead isotope exchange between dissolved and fluvial particulate matter: a laboratory study from the Johor River estuary. AB - Atmospheric aerosols are the dominant source of Pb to the modern marine environment, and as a result, in most regions of the ocean the Pb isotopic composition of dissolved Pb in the surface ocean (and in corals) matches that of the regional aerosols. In the Singapore Strait, however, there is a large offset between seawater dissolved and coral Pb isotopes and that of the regional aerosols. We propose that this difference results from isotope exchange between dissolved Pb supplied by anthropogenic aerosol deposition and adsorbed natural crustal Pb on weathered particles delivered to the ocean by coastal rivers. To investigate this issue, Pb isotope exchange was assessed through a closed-system exchange experiment using estuarine waters collected at the Johor River mouth (which discharges to the Singapore Strait). During the experiment, a known amount of dissolved Pb with the isotopic composition of NBS-981 (206Pb/207Pb = 1.093) was spiked into the unfiltered Johor water (dissolved and particulate 206Pb/207Pb = 1.199) and the changing isotopic composition of the dissolved Pb was monitored. The mixing ratio of the estuarine and spike Pb should have produced a dissolved 206Pb/207Pb isotopic composition of 1.161, but within a week, the 206Pb/207Pb in the water increased to 1.190 and continued to increase to 1.197 during the next two months without significant changes of the dissolved Pb concentration. The kinetics of isotope exchange was assessed using a simple Kd model, which assumes multiple sub-reservoirs within the particulate matter with different exchange rate constants. The Kd model reproduced 56% of the observed Pb isotope variance. Both the closed-system experiment and field measurements imply that isotope exchange can be an important mechanism for controlling Pb and Pb isotopes in coastal waters. A similar process may occur for other trace elements.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035267 TI - Coastal ocean and shelf-sea biogeochemical cycling of trace elements and isotopes: lessons learned from GEOTRACES. AB - Continental shelves and shelf seas play a central role in the global carbon cycle. However, their importance with respect to trace element and isotope (TEI) inputs to ocean basins is less well understood. Here, we present major findings on shelf TEI biogeochemistry from the GEOTRACES programme as well as a proof of concept for a new method to estimate shelf TEI fluxes. The case studies focus on advances in our understanding of TEI cycling in the Arctic, transformations within a major river estuary (Amazon), shelf sediment micronutrient fluxes and basin-scale estimates of submarine groundwater discharge. The proposed shelf flux tracer is 228-radium (T1/2 = 5.75 yr), which is continuously supplied to the shelf from coastal aquifers, sediment porewater exchange and rivers. Model derived shelf 228Ra fluxes are combined with TEI/ 228Ra ratios to quantify ocean TEI fluxes from the western North Atlantic margin. The results from this new approach agree well with previous estimates for shelf Co, Fe, Mn and Zn inputs and exceed published estimates of atmospheric deposition by factors of approximately 3-23. Lastly, recommendations are made for additional GEOTRACES process studies and coastal margin-focused section cruises that will help refine the model and provide better insight on the mechanisms driving shelf-derived TEI fluxes to the ocean.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035269 TI - Dedication: Professor Henry (Harry) Elderfield FRS (1943-2016). PMID- 29035268 TI - Trace element and isotope deposition across the air-sea interface: progress and research needs. AB - The importance of the atmospheric deposition of biologically essential trace elements, especially iron, is widely recognized, as are the difficulties of accurately quantifying the rates of trace element wet and dry deposition and their fractional solubility. This paper summarizes some of the recent progress in this field, particularly that driven by the GEOTRACES, and other, international research programmes. The utility and limitations of models used to estimate atmospheric deposition flux, for example, from the surface ocean distribution of tracers such as dissolved aluminium, are discussed and a relatively new technique for quantifying atmospheric deposition using the short-lived radionuclide beryllium-7 is highlighted. It is proposed that this field will advance more rapidly by using a multi-tracer approach, and that aerosol deposition models should be ground-truthed against observed aerosol concentration data. It is also important to improve our understanding of the mechanisms and rates that control the fractional solubility of these tracers. Aerosol provenance and chemistry (humidity, acidity and organic ligand characteristics) play important roles in governing tracer solubility. Many of these factors are likely to be influenced by changes in atmospheric composition in the future. Intercalibration exercises for aerosol chemistry and fractional solubility are an essential component of the GEOTRACES programme.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035271 TI - Influence of the orbital effects on the Majorana quasi-particles in a nanowire. AB - Majorana quasi-particles can be realised using magnetic field in the form of diamagnetic (orbital) or paramagnetic effects. In both cases, the magnetic field induces a topologically non-trivial phase of matter. In this paper, the influence of orbital effects on Majorana bound states induced by paramagnetic effects in 1D nanowire is elaborated. The role of orbital effects in density of states and eigenstates of the system is also discussed. Additionally, we show the phase diagram-the magnetic field versus the magnetic flux, which displays a relation between topologically trivial and non-trivial phases. The Majorana bound states existence in the presence of relatively small orbital effects is indicated. PMID- 29035270 TI - Quantifying trace element and isotope fluxes at the ocean-sediment boundary: a review. AB - Quantifying fluxes of trace elements and their isotopes (TEIs) at the ocean's sediment-water boundary is a pre-eminent challenge to understand their role in the present, past and future ocean. There are multiple processes that drive the uptake and release of TEIs, and properties that determine their rates are unevenly distributed (e.g. sediment composition, redox conditions and (bio)physical dynamics). These factors complicate our efforts to find, measure and extrapolate TEI fluxes across ocean basins. GEOTRACES observations are unveiling the oceanic distributions of many TEIs for the first time. These data evidence the influence of the sediment-water boundary on many TEI cycles, and underline the fact that our knowledge of the source-sink fluxes that sustain oceanic distributions is largely missing. Present flux measurements provide low spatial coverage and only part of the empirical basis needed to predict TEI flux variations. Many of the advances and present challenges facing TEI flux measurements are linked to process studies that collect sediment cores, pore waters, sinking material or seawater in close contact with sediments. However, such sampling has not routinely been viable on GEOTRACES expeditions. In this article, we recommend approaches to address these issues: firstly, with an interrogation of emergent data using isotopic mass-balance and inverse modelling techniques; and secondly, by innovating pursuits of direct TEI flux measurements. We exemplify the value of GEOTRACES data with a new inverse model estimate of benthic Al flux in the North Atlantic Ocean. Furthermore, we review viable flux measurement techniques tailored to the sediment-water boundary. We propose that such activities are aimed at regions that intersect the GEOTRACES Science Plan on the basis of seven criteria that may influence TEI fluxes: sediment provenance, composition, organic carbon supply, redox conditions, sedimentation rate, bathymetry and the benthic nepheloid inventory.This article is part of the themed issue 'Biological and climatic impacts of ocean trace element chemistry'. PMID- 29035272 TI - Binding stability of peptides on major histocompatibility complex class I proteins: role of entropy and dynamics. AB - Prediction of peptide binding on specific human leukocyte antigens (HLA) has long been studied with successful results. We herein describe the effects of entropy and dynamics by investigating the binding stabilities of 10 nanopeptides on various HLA Class I alleles using a theoretical model based on molecular dynamics simulations. The fluctuational entropies of the peptides are estimated over a temperature range of 310-460 K. The estimated entropies correlate well with experimental binding affinities of the peptides: peptides that have higher binding affinities have lower entropies compared to non-binders, which have significantly larger entropies. The computation of the entropies is based on a simple model that requires short molecular dynamics trajectories and allows for approximate but rapid determination. The paper draws attention to the long neglected dynamic aspects of peptide binding, and provides a fast computation scheme that allows for rapid scanning of large numbers of peptides on selected HLA antigens, which may be useful in defining the right peptides for personal immunotherapy. PMID- 29035273 TI - Spin independent magnetoresistance effects in vertical graphene spin valves. AB - Vertical spin valve device configuration with multilayer graphene (MLG) as spacer has drawn significant attention in recent years because of its potential to produce large magnetoresistance (MR) effect due to perfect spin filtering. However, demonstration of this effect has remained elusive so far. Here we consider MLG vertical spin valve structures and show that they exhibit spin independent MR effects, which are orders of magnitude stronger than the spin dependent effects reported to date. These effects manifest within a moderate field range of 10 kG and depend on various factors such as hybridization near the top graphene surface, doping, defects and interlayer coupling. These effects highlight the rich spectrum of physical phenomena that manifest in such systems, which could be exploited in low to moderate magnetic field sensing applications. PMID- 29035274 TI - Dimension- and shape-dependent thermal transport in nano-patterned thin films investigated by scanning thermal microscopy. AB - Scanning thermal microscopy (SThM) is a technique which is often used for the measurement of the thermal conductivity of materials at the nanometre scale. The impact of nano-scale feature size and shape on apparent thermal conductivity, as measured using SThM, has been investigated. To achieve this, our recently developed topography-free samples with 200 and 400 nm wide gold wires (50 nm thick) of length of 400-2500 nm were fabricated and their thermal resistance measured and analysed. This data was used in the development and validation of a rigorous but simple heat transfer model that describes a nanoscopic contact to an object with finite shape and size. This model, in combination with a recently proposed thermal resistance network, was then used to calculate the SThM probe signal obtained by measuring these features. These calculated values closely matched the experimental results obtained from the topography-free sample. By using the model to analyse the dimensional dependence of thermal resistance, we demonstrate that feature size and shape has a significant impact on measured thermal properties that can result in a misinterpretation of material thermal conductivity. In the case of a gold nanowire embedded within a silicon nitride matrix it is found that the apparent thermal conductivity of the wire appears to be depressed by a factor of twenty from the true value. These results clearly demonstrate the importance of knowing both probe-sample thermal interactions and feature dimensions as well as shape when using SThM to quantify material thermal properties. Finally, the new model is used to identify the heat flux sensitivity, as well as the effective contact size of the conventional SThM system used in this study. PMID- 29035275 TI - Polynomial description of inhomogeneous topological superconducting wires. AB - We present the universal features of the topological invariant for p-wave superconducting wires after the inclusion of spatial inhomogeneities. Three classes of distributed potentials are studied, a single-defect, a commensurate and an incommensurate model, using periodic site modulations. An analytic polynomial description is achieved by splitting the topological invariant into two parts; one part depends on the chemical potential and the other does not. For the homogeneous case, an elliptical region is found where the topological invariant oscillates. The zeros of these oscillations occur at points where the fermion parity switches for finite wires. The increase of these oscillations with the inhomogeneity strength leads to new isolated non-topological phases. We characterize these new phases according to each class of spatial distributions. Such phases could also be observed in the XY model, to which our model is dual. PMID- 29035276 TI - Unctuous ZrO2 nanoparticles with improved functional attributes as lubricant additives. AB - One of the main drawbacks in the application of metal-oxide nanoparticles as lubricant additives is their poor stability in organic media, despite the good anti-wear, friction-reducing and high-load capacity properties described for these materials. In this work, we present a novel procedure to chemically cap the surface of ZrO2 nanoparticles (ZrO2NPs) with long hydrocarbon chains in order to obtain stable dispersions of ZrO2NPs in non-aqueous media without disrupting their attributes as lubricant additives. C-8, C-10 and C-16 saturated flexible chains were attached to the ZrO2NP surface and their physical and chemical characterization was performed by transmission electron microscopy, thermogravimetric analysis, attenuated total reflectance Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy and solid-state nuclear magnetic resonance. The dispersion stability of the modified ZrO2NPs in non aqueous media was studied using static multiple light scattering. Tribological tests demonstrated that dispersions of the long-chain capped ZrO2NPs in base lubricating oils exhibited low friction coefficients and improved the anti-wear properties of the base oil when compared with the raw lubricating oil. PMID- 29035279 TI - Cannabis in fat: high hopes to treat obesity. AB - Cannabinoid receptor type-1 (CB1) is known to have a substantial impact on the regulation of energy metabolism via central and peripheral mechanisms. In this issue of the JCI, Ruiz de Azua and colleagues provide important insights into the regulation of adipocyte physiology by CB1. Mice with adipocyte-specific deletion of the CB1-encoding gene had an overall improved metabolic profile in addition to reduced body weight and total adiposity. These changes were associated with an increase in sympathetic tone of the adipose tissue and expansion of activated macrophages, both of which occurred prior to changes in body weight, lending support to a causal relationship between loss of CB1 in adipocytes and systemic metabolic changes. This work identifies adipocyte CB1s as a potential novel peripheral target for affecting systemic metabolism with diminished CNS effects. PMID- 29035277 TI - MNK1/2 inhibition limits oncogenicity and metastasis of KIT-mutant melanoma. AB - Melanoma can be stratified into unique subtypes based on distinct pathologies. The acral/mucosal melanoma subtype is characterized by aberrant and constitutive activation of the proto-oncogene receptor tyrosine kinase C-KIT, which drives tumorigenesis. Treatment of these melanoma patients with C-KIT inhibitors has proven challenging, prompting us to investigate the downstream effectors of the C KIT receptor. We determined that C-KIT stimulates MAP kinase-interacting serine/threonine kinases 1 and 2 (MNK1/2), which phosphorylate eukaryotic translation initiation factor 4E (eIF4E) and render it oncogenic. Depletion of MNK1/2 in melanoma cells with oncogenic C-KIT inhibited cell migration and mRNA translation of the transcriptional repressor SNAI1 and the cell cycle gene CCNE1. This suggested that blocking MNK1/2 activity may inhibit tumor progression, at least in part, by blocking translation initiation of mRNAs encoding cell migration proteins. Moreover, we developed an MNK1/2 inhibitor (SEL201), and found that SEL201-treated KIT-mutant melanoma cells had lower oncogenicity and reduced metastatic ability. Clinically, tumors from melanoma patients harboring KIT mutations displayed a marked increase in MNK1 and phospho-eIF4E. Thus, our studies indicate that blocking MNK1/2 exerts potent antimelanoma effects and support blocking MNK1/2 as a potential strategy to treat patients positive for KIT mutations. PMID- 29035278 TI - Hdac3 regulates lymphovenous and lymphatic valve formation. AB - Lymphedema, the most common lymphatic anomaly, involves defective lymphatic valve development; yet the epigenetic modifiers underlying lymphatic valve morphogenesis remain elusive. Here, we showed that during mouse development, the histone-modifying enzyme histone deacetylase 3 (Hdac3) regulates the formation of both lymphovenous valves, which maintain the separation of the blood and lymphatic vascular systems, and the lymphatic valves. Endothelium-specific ablation of Hdac3 in mice led to blood-filled lymphatic vessels, edema, defective lymphovenous valve morphogenesis, improper lymphatic drainage, defective lymphatic valve maturation, and complete lethality. Hdac3-deficient lymphovenous valves and lymphatic vessels exhibited reduced expression of the transcription factor Gata2 and its target genes. In response to oscillatory shear stress, the transcription factors Tal1, Gata2, and Ets1/2 physically interacted with and recruited Hdac3 to the evolutionarily conserved E-box-GATA-ETS composite element of a Gata2 intragenic enhancer. In turn, Hdac3 recruited histone acetyltransferase Ep300 to form an enhanceosome complex that promoted Gata2 expression. Together, these results identify Hdac3 as a key epigenetic modifier that maintains blood-lymph separation and integrates both extrinsic forces and intrinsic cues to regulate lymphatic valve development. PMID- 29035281 TI - Young endothelial cells revive aging blood. AB - The hematopoietic system declines with age, resulting in decreased hematopoietic stem cell (HSC) self-renewal capacity, myeloid skewing, and immune cell depletion. Aging of the hematopoietic system is associated with an increased incidence of myeloid malignancies and a decline in adaptive immunity. Therefore, strategies to rejuvenate the hematopoietic system have important clinical implications. In this issue of the JCI, Poulos and colleagues demonstrate that infusions of bone marrow (BM) endothelial cells (ECs) from young mice promoted HSC self-renewal and restored immune cell content in aged mice. Additionally, delivery of young BM ECs along with HSCs following total body irradiation improved HSC engraftment and enhanced survival. These results suggest an important role for BM endothelial cells (ECs) in regulating hematopoietic aging and support further research to identify the rejuvenating factors elaborated by BM ECs that restore HSC function and the immune repertoire in aged mice. PMID- 29035280 TI - Adipocyte cannabinoid receptor CB1 regulates energy homeostasis and alternatively activated macrophages. AB - Dysregulated adipocyte physiology leads to imbalanced energy storage, obesity, and associated diseases, imposing a costly burden on current health care. Cannabinoid receptor type-1 (CB1) plays a crucial role in controlling energy metabolism through central and peripheral mechanisms. In this work, adipocyte specific inducible deletion of the CB1 gene (Ati-CB1-KO) was sufficient to protect adult mice from diet-induced obesity and associated metabolic alterations and to reverse the phenotype in already obese mice. Compared with controls, Ati CB1-KO mice showed decreased body weight, reduced total adiposity, improved insulin sensitivity, enhanced energy expenditure, and fat depot-specific cellular remodeling toward lowered energy storage capacity and browning of white adipocytes. These changes were associated with an increase in alternatively activated macrophages concomitant with enhanced sympathetic tone in adipose tissue. Remarkably, these alterations preceded the appearance of differences in body weight, highlighting the causal relation between the loss of CB1 and the triggering of metabolic reprogramming in adipose tissues. Finally, the lean phenotype of Ati-CB1-KO mice and the increase in alternatively activated macrophages in adipose tissue were also present at thermoneutral conditions. Our data provide compelling evidence for a crosstalk among adipocytes, immune cells, and the sympathetic nervous system (SNS), wherein CB1 plays a key regulatory role. PMID- 29035284 TI - Traction alopecia: A neglected entity in 2017. AB - Traction alopecia was first described in 1904 but is still a cause of scarring hair loss in young women worldwide. It is unique in being initially a reversible then an irreversible (scarring) form of alopecia. Linked to tightly-pulled hairstyles, it is seen across all races. The pattern of hair loss depends on the style creating it but most commonly affects the frontotemporal hairline. There are some new examination findings associated with traction alopecia, which are traction folliculitis, the fringe sign and hair casts (pseudonits) on dermatoscopy. These may prove key in prompting early specialist referral. The mainstay of current treatment is cessation of the contributing hairstyles. Camouflage, anti-inflammatory or growth-stimulating topical preparations are second line treatments. In later stages of severe traction alopecia hair transplantation may be the only effective treatment. The evidence basis for medical intervention with topical agents is anecdotal at best. Furthermore, additional research is required to clarify the pathogenesis of this biphasic alopecia. Until then, prompt diagnosis and identification of causative hairstyles are focus of current dermatological practice. PMID- 29035282 TI - Endothelial transplantation rejuvenates aged hematopoietic stem cell function. AB - Age-related changes in the hematopoietic compartment are primarily attributed to cell-intrinsic alterations in hematopoietic stem cells (HSCs); however, the contribution of the aged microenvironment has not been adequately evaluated. Understanding the role of the bone marrow (BM) microenvironment in supporting HSC function may prove to be beneficial in treating age-related functional hematopoietic decline. Here, we determined that aging of endothelial cells (ECs), a critical component of the BM microenvironment, was sufficient to drive hematopoietic aging phenotypes in young HSCs. We used an ex vivo hematopoietic stem and progenitor cell/EC (HSPC/EC) coculture system as well as in vivo EC infusions following myelosuppressive injury in mice to demonstrate that aged ECs impair the repopulating activity of young HSCs and impart a myeloid bias. Conversely, young ECs restored the repopulating capacity of aged HSCs but were unable to reverse the intrinsic myeloid bias. Infusion of young, HSC-supportive BM ECs enhanced hematopoietic recovery following myelosuppressive injury and restored endogenous HSC function in aged mice. Coinfusion of young ECs augmented aged HSC engraftment and enhanced overall survival in lethally irradiated mice by mitigating damage to the BM vascular microenvironment. These data lay the groundwork for the exploration of EC therapies that can serve as adjuvant modalities to enhance HSC engraftment and accelerate hematopoietic recovery in the elderly population following myelosuppressive regimens. PMID- 29035283 TI - mTORC1 stimulates phosphatidylcholine synthesis to promote triglyceride secretion. AB - Liver triacylglycerol (TAG) synthesis and secretion are closely linked to nutrient availability. After a meal, hepatic TAG formation from fatty acids is decreased, largely due to a reduction in circulating free fatty acids (FFA). Despite the postprandial decrease in FFA-driven esterification and oxidation, VLDL-TAG secretion is maintained to support peripheral lipid delivery and metabolism. The regulatory mechanisms underlying the postprandial control of VLDL TAG secretion remain unclear. Here, we demonstrated that the mTOR complex 1 (mTORC1) is essential for this sustained VLDL-TAG secretion and lipid homeostasis. In murine models, the absence of hepatic mTORC1 reduced circulating TAG, despite hepatosteatosis, while activation of mTORC1 depleted liver TAG stores. Additionally, mTORC1 promoted TAG secretion by regulating phosphocholine cytidylyltransferase alpha (CCTalpha), the rate-limiting enzyme involved in the synthesis of phosphatidylcholine (PC). Increasing PC synthesis in mice lacking mTORC1 rescued hepatosteatosis and restored TAG secretion. These data identify mTORC1 as a major regulator of phospholipid biosynthesis and subsequent VLDL-TAG secretion, leading to increased postprandial TAG secretion. PMID- 29035285 TI - Dermoscopy and patch testing in patients with lichen planus pigmentosus on face: A cross-sectional observational study in fifty Indian patients. AB - BACKGROUND: Lichen planus pigmentosus (LPP) is a common cause of facial melanosis in the dark-skinned population. At present, information on dermoscopy and patch testing in LPP is limited. OBJECTIVES: To describe dermoscopic findings and study the role of patch testing in patients with LPP on the face. METHODS: Facial lesions of 50 patients with LPP were studied dermoscopically, followed by histological evaluation. Patch and photopatch tests with the Indian Standard Series and Scandinavian series, respectively, and patient's own cosmetics were performed on all patients. RESULTS: The most common dermoscopic finding was dots and/or globules (43/50, 86%) in different patterns: hem-like (20.9%), arcuate (18.6%), incomplete reticular (39.5%), complete reticular (7%), and not otherwise specified (14%). Other patterns were exaggerated pseudoreticular pattern, accentuation of pigmentation around follicular openings, targetoid appearance, and obliteration of the pigmentary network. There were 26 relevant patch tests in 17 (34%) patients: para-phenylenediamine (n = 5), nickel (n = 3), colophony, perfume mix and fragrance mix (n = 2 each), thiuram mix and 3,3,4,5 tetrachlorosalicylanilide (n = 1 each), and patients' own products (n = 9). The only positive photopatch test was to fentichlor. No clinical or histological finding differed significantly based on patch test results. The only dermoscopic finding to be statistically associated with a positive patch test was the non characteristic arrangement of dots/globules (P = 0.042). LIMITATIONS: Dermoscopic features were not correlated with clinical features or disease duration. Implications of patch testing on the management of LPP cannot be commented upon as ours was a cross-sectional study. CONCLUSIONS: The present study describes the dermoscopic findings of facial lesions in LPP. Our patch test results suggest a probable role of allergens in causing LPP on the face. PMID- 29035286 TI - Urocytological evaluation of pemphigus patients on long term cyclophosphamide therapy: A cross sectional study. AB - BACKGROUND: Cyclophosphamide therapy is associated with several urological complications including urinary bladder malignancy. Data on urologic complications of chronic cyclophosphamide therapy for dermatologic conditions is not available. OBJECTIVES: To study the urocytological profile of pemphigus patients on long-term cyclophosphamide therapy. MATERIALS AND METHODS: In a cross sectional study, consecutive patients who had received cyclophosphamide therapy for pemphigus for more than 12 months were included. All patients were subjected to urinalysis including microscopy, culture, and urine cytology. Immunocytochemical staining for cytokeratin 20 (CK-20) on urine sediments and ELISA (enzyme-linked immunosorbent assay) for nuclear membrane protein-22 (NMP 22) were performed in all cases. In patients with urinary symptoms, microscopic hematuria, or those detected with abnormal urine sediment cytology, NMP-22, and CK-20 positivity, cystoscopy, and other relevant investigations were also done. RESULTS: A total of 44 patients (43 of pemphigus vulgaris and one of pemphigus foliaceus) were recruited. Mean duration of cyclophosphamide intake was 2.9 +/- 1.7 years (range 1-8 years) with a mean cumulative dose of 53 +/- 28.4 g (range 6.5-141 g). Twenty-one cases (47.7%) each were asymptomatic and symptomatic with episodic urinary symptoms [of which two had urinary tract infection (UTI)] and two patients had gross hematuria. Urine cytology revealed mild urothelial nucleomegaly with hyperchromasia in four patients. However, CK-20 and NMP-22 were negative in all samples. Cystoscopy was performed in 21 cases and did not reveal any sign of bladder malignancy. LIMITATIONS: A relatively small sample size and lack of long-term follow-up were limitations. CONCLUSIONS: In our study, no serious urologic complications were found in pemphigus cases on chronic cyclophosphamide therapy. PMID- 29035287 TI - Cardio-pulmonary involvement in systemic sclerosis: A study at a tertiary care center. AB - BACKGROUND: Systemic sclerosis is a multisystem disorder characterized by microangiopathy, dysregulation of the immune system and massive deposition of collagen in the connective tissue of the skin, blood vessels and various internal organs. Although the mortality from renal crises has dropped significantly due to the use of angiotensin-converting enzyme inhibitors, cardiac and pulmonary involvement accounts for significant morbidity and mortality. We studied 28 patients with systemic sclerosis at Gandhi Medical College and Hospital, Hyderabad, over a period of two years for cardiopulmonary involvement. AIM: The aim of this study was to analyze the cardiopulmonary involvement in systemic sclerosis. METHODS: All patients with systemic sclerosis attending the dermatology outpatient department were included in the study. The diagnosis of systemic sclerosis was made based on the American Rheumatology Association criteria, and was further confirmed by skin biopsy and serological investigations. X-ray chest, electrocardiogram, two-dimensional ECHO, high resolution computed tomography chest, pulmonary function tests and bronchoalveolar lavage were done to evaluate cardiopulmonary involvement. OBSERVATIONS: Out of 28 patients, 17 had diffuse systemic sclerosis and 11 had limited systemic sclerosis. Mean duration of symptoms was 2.9 years. Abnormalities in chest X-ray were found in 16 patients. Pulmonary function tests showed a restrictive pattern in 23 patients. High-resolution computed tomography of the chest showed evidence of interstitial lung disease in 21 patients, while five patients each had pleural effusion and cardiomegaly. Bronchoalveolar lavage showed different cellular patterns such as neutrophilia, eosinophilia and lymphocytosis. Pulmonary arterial hypertension was observed in seven patients and isolated pulmonary arterial hypertension in two patients. Electrocardiogram abnormalities were found in twenty patients. Two-dimensional ECHO was abnormal in 17 patients with valvular abnormalities being the most common finding. Overall, pulmonary involvement was observed in 27 patients and cardiac involvement in 17 patients. LIMITATIONS: A small sample size was a limitation of this study. Diffusing capacity of lung for carbon monoxide, and right cardiac catheterization were not done, as these were not available at our centre. CONCLUSIONS: In our patients, pulmonary involvement was more common than cardiac involvement. Interstitial lung disease and cardiac involvement were more commonly seen in diffuse systemic sclerosis whereas pulmonary hypertension was more frequent in limited systemic sclerosis. Hence, it is important to screen the patients for cardiopulmonary involvement for early diagnosis and treatment and a better prognostic outcome. PMID- 29035288 TI - Tinea barbae presenting as kerion. PMID- 29035289 TI - Molecular Evolution of MERS Coronavirus: Dromedaries as a Recent Intermediate Host or Long-Time Animal Reservoir? AB - While dromedary camels are the immediate animal source of MERS coronavirus (MERS CoV) infection, the evolutionary origin of MERS-CoV remains obscure. We analyzed 219 camel and human MERS-CoV genome sequences available in GenBank. Phylogenetic analysis showed that 5 and 214 strains belong to clade A and B, respectively, with clade A further divided into lineage A1 (3 human strains) and lineage A2 (2 camel strains), and clade B divided into B1 to B6 (each containing both human and camel strains). Recombination analysis showed potential recombination events in five strains from dromedaries in Saudi Arabia, with recombination between lineage B5 and B3 in four strains, and between lineage B3 and B4 in one strain. The spike protein showed the highest number of amino acid substitutions, especially between A2 and other lineages, and contained positively selected codons. Notably, codon 1020 was positively selected among B and B5 strains, and can distinguish between clade A (Q1020) and B (R1020/H1020) strains, suggesting that this residue may play a role in the evolution of S protein during divergence of different lineages. The time of the most recent common ancestor of all MERS-CoV was dated to approximately 2010. The implications on the role of camels in the evolution of MERS-CoV are discussed. PMID- 29035290 TI - Relative Humidity Sensor Based on No-Core Fiber Coated by Agarose-Gel Film. AB - A relative humidity (RH) sensor based on single-mode-no-core-single-mode fiber (SNCS) structure is proposed and experimentally demonstrated. The agarose gel is coated on the no-core fiber (NCF) as the cladding, and multimode interference (MMI) occurs in the SNCS structure. The transmission spectrum of the sensor is modulated at different ambient relative humidities due to the tunable refractive index property of the agarose gel film. The relative humidity can be measured by the wavelength shift and intensity variation of the dip in the transmission spectra. The humidity response of the sensors, coated with different concentrations and coating numbers of the agarose solution, were experimentally investigated. The wavelength and intensity sensitivity is obtained as -149 pm/%RH and -0.075 dB/%RH in the range of 30% RH to 75% RH, respectively. The rise and fall time is tested to be 4.8 s and 7.1 s, respectively. The proposed sensor has a great potential in real-time RH monitoring. PMID- 29035291 TI - From Pathology to Precision Medicine in Anaplastic Large Cell Lymphoma Expressing Anaplastic Lymphoma Kinase (ALK+ ALCL). AB - Anaplastic large cell lymphoma expressing anaplastic lymphoma kinase (ALK+ ALCL) is a distinct subtype of non-Hodgkin lymphoma. In this review, we discuss the historical findings that led to its classification as a unique disease, despite its varied clinical presentation and histology. We discuss the molecular mechanisms underlying ALK+ ALCL pathology and the questions that remain in the field. Finally, we visit how decades of ALK+ ALCL research has yielded more precise drugs that hold promise for the future. PMID- 29035292 TI - Secreted Expression of the Cap Gene of Porcine Circovirus Type 2 in Classical Swine Fever Virus C-Strain: Potential of C-Strain Used as a Vaccine Vector. AB - Bivalent vaccines based on live attenuated viruses expressing a heterologous protein are an attractive strategy to address co-infections with various pathogens in the field. Considering the excellent efficacy and safety of the lapinized live attenuated vaccine C-strain (HCLV strain) of classical swine fever virus (CSFV), we proposed that C-strain has the potential as a viral vector for developing bivalent vaccines. To this end, we generated three recombinant viruses based on C-strain, one expressing the capsid (Cap) gene of porcine circovirus type 2 (PCV2) with the nuclear localization signal (NLS) (rHCLV-2ACap), and the other two expressing the PCV2 Cap gene without the NLS yet containing the signal peptide of the prolactin gene (rHCLV-pspCap) or that of the ubiquitin-specific peptidase gene (rHCLV-uspCap). All the recombinant viruses exhibited phenotypes similar to those of the parental virus and produced high-level anti-CSFV neutralizing antibodies (NAbs) in rabbits. Interestingly, rHCLV-uspCap and rHCLV pspCap, but not rHCLV-2ACap, elicited detectable anti-Cap and -PCV2 NAbs in rabbits. Taken together, our data demonstrate that C-strain can be used as a viral vector to develop bivalent vaccines. PMID- 29035295 TI - Nighttime Foreground Pedestrian Detection Based on Three-Dimensional Voxel Surface Model. AB - Pedestrian detection is among the most frequently-used preprocessing tasks in many surveillance application fields, from low-level people counting to high level scene understanding. Even though many approaches perform well in the daytime with sufficient illumination, pedestrian detection at night is still a critical and challenging problem for video surveillance systems. To respond to this need, in this paper, we provide an affordable solution with a near-infrared stereo network camera, as well as a novel three-dimensional foreground pedestrian detection model. Specifically, instead of using an expensive thermal camera, we build a near-infrared stereo vision system with two calibrated network cameras and near-infrared lamps. The core of the system is a novel voxel surface model, which is able to estimate the dynamic changes of three-dimensional geometric information of the surveillance scene and to segment and locate foreground pedestrians in real time. A free update policy for unknown points is designed for model updating, and the extracted shadow of the pedestrian is adopted to remove foreground false alarms. To evaluate the performance of the proposed model, the system is deployed in several nighttime surveillance scenes. Experimental results demonstrate that our method is capable of nighttime pedestrian segmentation and detection in real time under heavy occlusion. In addition, the qualitative and quantitative comparison results show that our work outperforms classical background subtraction approaches and a recent RGB-D method, as well as achieving comparable performance with the state-of-the-art deep learning pedestrian detection method even with a much lower hardware cost. PMID- 29035293 TI - Identification of (Z)-2,3-Diphenylacrylonitrileas Anti-Cancer Molecule in Persian Gulf Sea Cucumber Holothuria parva. AB - Hepatocellular carcinoma (HCC), also named cancerous hepatoma, is the most common type of malignant neoplasia of the liver. In this research, we screened the Persian Gulf sea cucumber Holothuria parva (H. parva) methanolic sub-fractions for the possible existence of selective toxicity on liver mitochondria isolated from an animal model of HCC. Next, we purified the most active fraction. Thus the structure of the active molecule was identified. HCC was induced by diethylnitrosamine (DEN) and 2-acetylaminofluorene (2-AAF) protocol. Rat liver mitochondria for evaluation of the selective cytotoxic effects of sub-fractions of H. parva were isolated and then mitochondrial parameters were determined. Our results showed that C1 sub-fraction of methanolic extract of H. parva considerably increased reactive oxygen species (ROS) generation, collapse of mitochondrial membrane potential (MMP), swelling in mitochondria and cytochrome c release only on HCC liver mitochondria. Furthermore, the methanolic extract of H. parva was investigated furthermore and the active fraction was extracted. In this fraction, (Z)-2,3-diphenylacrylonitrile molecule, which is also known as alpha cyanostilbene, was identified by mass analysis. This molecule increased ROS generation, collapse of MMP, swelling in mitochondria and finally cytochrome c release only on HCC liver mitochondria. The derivatives of (Z)-2,3 diphenylacrylonitrile in other natural products were also reported as an anti cancer agent. These results suggest the eligibility of the (Z)-2,3 diphenylacrylonitrile as a complementary therapeutic agent for patients with HCC. PMID- 29035296 TI - A Wireless Monitoring System Using a Tunneling Sensor Array in a Smart Oral Appliance for Sleep Apnea Treatment. AB - Sleep apnea is a serious sleep disorder, and the most common type is obstructive sleep apnea (OSA). Untreated OSA will cause lots of potential health problems. Oral appliance therapy is an effective and popular approach for OSA treatment, but making a perfect fit for each patient is time-consuming and decreases its efficiency considerably. This paper proposes a System-on-a-Chip (SoC) enabled sleep monitoring system in a smart oral appliance, which is capable of intelligently collecting the physiological data about tongue movement through the whole therapy. A tunneling sensor array with an ultra-high sensitivity is incorporated to accurately detect the subtle pressure from the tongue. When the device is placed on the wireless platform, the temporary stored data will be retrieved and wirelessly transmitted to personal computers and cloud storages. The battery will be recharged by harvesting external RF power from the platform. A compact prototype module, whose size is 4.5 * 2.5 * 0.9 cm3, is implemented and embedded inside the oral appliance to demonstrate the tongue movement detection in continuous time frames. The functions of this design are verified by the presented measurement results. This design aims to increase efficiency and make it a total solution for OSA treatment. PMID- 29035294 TI - Predicting Amyloidogenic Proteins in the Proteomes of Plants. AB - Amyloids are protein fibrils with characteristic spatial structure. Though amyloids were long perceived to be pathogens that cause dozens of incurable pathologies in humans and mammals, it is currently clear that amyloids also represent a functionally important form of protein structure implicated in a variety of biological processes in organisms ranging from archaea and bacteria to fungi and animals. Despite their social significance, plants remain the most poorly studied group of organisms in the field of amyloid biology. To date, amyloid properties have only been demonstrated in vitro or in heterologous systems for a small number of plant proteins. Here, for the first time, we performed a comprehensive analysis of the distribution of potentially amyloidogenic proteins in the proteomes of approximately 70 species of land plants using the Waltz and SARP (Sequence Analysis based on the Ranking of Probabilities) bioinformatic algorithms. We analyzed more than 2.9 million protein sequences and found that potentially amyloidogenic proteins are abundant in plant proteomes. We found that such proteins are overrepresented among membrane as well as DNA- and RNA-binding proteins of plants. Moreover, seed storage and defense proteins of most plant species are rich in amyloidogenic regions. Taken together, our data demonstrate the diversity of potentially amyloidogenic proteins in plant proteomes and suggest biological processes where formation of amyloids might be functionally important. PMID- 29035297 TI - Variability in Strength, Pain, and Disability Changes in Response to an Isolated Lumbar Extension Resistance Training Intervention in Participants with Chronic Low Back Pain. AB - Strengthening the lumbar extensor musculature is a common recommendation for chronic low back pain (CLBP). Although reported as effective, variability in response in CLBP populations is not well investigated. This study investigated variability in responsiveness to isolated lumbar extension (ILEX) resistance training in CLBP participants by retrospective analysis of three previous randomized controlled trials. Data from 77 participants were available for the intervention arms (males = 43, females = 34) 37 participants data (males = 20, females = 17) from the control arms. Intervention participants had all undergone 12 weeks of ILEX resistance training and changes in ILEX strength, pain (visual analogue scale; VAS), and disability (Oswestry disability index; ODI) measured. True inter-individual (i.e., between participants) variability in response was examined through calculation of difference in the standard deviation of change scores for both control and intervention arms. Intervention participants were classified into responder status using k-means cluster analysis for ILEX strength changes and using minimal clinically important change cut-offs for VAS and ODI. Change in average ILEX strength ranged 7.6 Nm (1.9%) to 192.1 Nm (335.7%). Change in peak ILEX strength ranged -12.2 Nm (-17.5%) to 276.6 Nm (169.6%). Participants were classified for strength changes as low (n = 31), medium (n = 36), and high responders (n = 10). Change in VAS ranged 12.0 mm to -84.0 mm. Participants were classified for VAS changes as negative (n = 3), non-responders (n = 34), responders (n = 15), and high responders (n = 19). Change in ODI ranged 18 pts to -45 pts. Participants were classified for ODI changes as negative (n = 2), non responders (n = 21), responders (n = 29), and high responders (n = 25). Considerable variation exists in response to ILEX resistance training in CLBP. Clinicians should be aware of this and future work should identify factors prognostic of successful outcomes. PMID- 29035298 TI - Molecular Docking and 3D-Pharmacophore Modeling to Study the Interactions of Chalcone Derivatives with Estrogen Receptor Alpha. AB - Tamoxifen is the most frequently used anti-estrogen adjuvant treatment for estrogen receptor-positive breast cancer. However, it is associated with an increased risk of several serious side-effects, such as uterine cancer, stroke, and pulmonary embolism. The 2',4'-dihydroxy-6-methoxy-3,5-dimethylchalcone (ChalcEA) from plant leaves of Eugenia aquea, has been found to inhibit the proliferation of MCF-7 human breast cancer cells in a dose-dependent manner, with an IC50 of 74.5 MUg/mL (250 MUM). The aim of this work was to study the molecular interactions of new ChalcEA derivatives formed with the Estrogen Receptor alpha (ERalpha) using computer aided drug design approaches. Molecular docking using Autodock 4.2 was employed to explore the modes of binding of ChalcEA derivatives with ERalpha. The 3D structure-based pharmacophore model was derived using LigandScout 4.1 Advanced to investigate the important chemical interactions of the ERalpha-tamoxifen complex structure. The binding energy and the tamoxifen pharmacophore fit score of the best ChalcEA derivative (HNS10) were -12.33 kcal/mol and 67.07 kcal/mol, respectively. The HNS10 interacted with Leu346, Thr347, Leu349, Ala350, Glu353, Leu387, Met388, Leu391, Arg394, Met421, and Leu525. These results suggest that the new ChalcEA derivatives could serve as the lead compound for potent ERalpha inhibitor in the fight against breast cancer. PMID- 29035300 TI - Photometric and Colorimetric Assessment of LED Chip Scale Packages by Using a Step-Stress Accelerated Degradation Test (SSADT) Method. AB - By solving the problem of very long test time on reliability qualification for Light-emitting Diode (LED) products, the accelerated degradation test with a thermal overstress at a proper range is regarded as a promising and effective approach. For a comprehensive survey of the application of step-stress accelerated degradation test (SSADT) in LEDs, the thermal, photometric, and colorimetric properties of two types of LED chip scale packages (CSPs), i.e., 4000 degrees K and 5000 degrees K samples each of which was driven by two different levels of currents (i.e., 120 mA and 350 mA, respectively), were investigated under an increasing temperature from 55 degrees C to 150 degrees C and a systemic study of driving current effect on the SSADT results were also reported in this paper. During SSADT, junction temperatures of the test samples have a positive relationship with their driving currents. However, the temperature-voltage curve, which represents the thermal resistance property of the test samples, does not show significant variance as long as the driving current is no more than the sample's rated current. But when the test sample is tested under an overdrive current, its temperature-voltage curve is observed as obviously shifted to the left when compared to that before SSADT. Similar overdrive current affected the degradation scenario is also found in the attenuation of Spectral Power Distributions (SPDs) of the test samples. As used in the reliability qualification, SSADT provides explicit scenes on color shift and correlated color temperature (CCT) depreciation of the test samples, but not on lumen maintenance depreciation. It is also proved that the varying rates of the color shift and CCT depreciation failures can be effectively accelerated with an increase of the driving current, for instance, from 120 mA to 350 mA. For these reasons, SSADT is considered as a suitable accelerated test method for qualifying these two failure modes of LED CSPs. PMID- 29035299 TI - Two Distinct Conformations in Bet v 2 Determine Its Proteolytic Resistance to Cathepsin S. AB - Birch pollen allergy affects more than 20% of the European allergic population. On a molecular level, birch pollen allergy can be linked to the two dominant allergens Bet v 1 and Bet v 2. Bet v 2 belongs to the profilin family, which is abundant in the plant kingdom. Importantly, the homologous plant profilins have a conserved cysteine motif with a currently unknown functional relevance. In particular, it is unknown whether the motif is relevant for disulfide formation and to what extent it would affect the profilins' structural, functional and immunological properties. Here we present crystal structures of Bet v 2 in the reduced and the oxidized state, i.e., without and with a disulfide bridge. Despite overall structural similarity, the two structures distinctly differ at their termini which are stabilized to each other in the oxidized, i.e., disulfide linked state. These structural differences translate into differences in their proteolytic resistance. Whereas the oxidized Bet v 2 is rather resistant towards the endolysosomal protease cathepsin S, it is rapidly degraded in the reduced form. By contrast, both Bet v 2 forms exhibit similar immunological properties as evidenced by their binding to IgE antibodies from birch pollen allergic patients and by their ability to trigger histamine release in a humanized rat basophilic leukemia cells (RBL) assay, independent of the presence or absence of the disulfide bridge. Taken together our findings suggest that the oxidized Bet v 2 conformation should be the relevant species, with a much longer retention time to trigger immune responses. PMID- 29035301 TI - Exploring Knowledge and Attitudes about Vitamin D among Adults in Saudi Arabia: A Qualitative Study. AB - Abstract: Vitamin D deficiency is widespread in Saudi Arabia. The aim of this study was to explore participants' knowledge about vitamin D and attitudes toward sun exposure. The study also aimed to explore the social and cultural factors that might potentially contribute to vitamin D deficiency in Saudi Arabia. Face to-face interviews were carried out in the cities of Jeddah and Makkah between May and October 2015. The interview questions were semi-structured, and the data was analyzed using thematic analysis. Study participants showed a reasonable level of knowledge in different areas about vitamin D, including the effect of vitamin D deficiency on bone health and exposure to sunlight as the main source of vitamin D. Participants were also knowledgeable about vitamin D supplements as another source of this vitamin. Nevertheless, there was a shortage of knowledge in relation to dietary sources of vitamin D. In respect to attitudes toward sun exposure, some participants had positive attitudes toward sunlight and were willing to expose themselves to sunlight, but it was restricted to the early morning or late afternoon to avoid the heat. These participants who liked exposure to sunlight were largely exposing only their faces and hands to sunlight. Other participants had negative attitudes toward sun exposure and were avoiding sunlight. Moreover, the study participants identified several barriers to sun exposure, including hot climate, living in high-rise buildings, limited public areas allowing outdoor activities, lifestyle issues such as physical inactivity, and some religious concerns such as wearing the hijab. The study results also demonstrate that females were more enthusiastic about taking actions to improve their vitamin D status in comparison with males. Recommendations for health education interventions that increase awareness about vitamin D sources, especially food sources, are made. Also, educational interventions should focus on increasing awareness about the sufficient time of the day and duration for sun exposure to improve vitamin D status and the importance of the intake of vitamin D supplements as an affordable source to improve vitamin D status. Increasing males' awareness of the benefits of vitamin D is important to encourage them to adopt behaviors to improve vitamin D. PMID- 29035302 TI - Oligoarticular Hemarthroses and Osteomyelitis Complicating Pasteurella Meningitis in an Infant. AB - A 5-month-old previously healthy female presented with a one-week history of fever and increased fussiness. Her presentation revealed an ill-appearing infant with an exam and cerebrospinal fluid (CSF) studies concerning bacterial meningitis; CSF cultures grew Pasteurella multocida. Additionally, brain magnetic resonance imaging (MRI) demonstrated cervical osteomyelitis. Despite multiple days of antibiotic therapy, she remained febrile with continued pain; MRI showed oligoarticular effusions, and aspiration of these joints yielded bloody aspirates. Evaluations for coagulopathy and immune complex-mediated arthropathy were negative. The patient improved following appropriate antibiotic therapy and spontaneous resolution of hemarthroses, and was discharged to a short-term rehabilitation hospital. P. multocida is a small, encapsulated coccobacillus that is part of the commensal oral flora of animals. It most commonly causes skin infections in humans, yet is a rare cause of meningitis in the pediatric population, especially in children <1 year of age. Transmission due to P. multocida is most commonly due to direct contact with animals. To our knowledge, this is the first case of oligoarticular hemarthroses and cervical osteomyelitis complicating P multocida meningitis. This case highlights the physician's potential for cognitive bias and premature anchoring, and the resulting implications in delivering excellent patient care. PMID- 29035303 TI - Optimization of Bicomponent Electrospun Fibers for Therapeutic Use: Post Treatments to Improve Chemical and Biological Stability. AB - Bicomponent electrospun nanofibers based on the combination of synthetic (i.e., aliphatic polyesters such as polycaprolactone (PCL)) and natural proteins (i.e., gelatin) have been extensively investigated as temporary platforms to instruct cells by the release of molecular/pharmaceutical signals for the regeneration of several tissues. Here, water soluble proteins (i.e., gelatin), strictly embedded to PCL, act as carriers of bioactive molecules, thus improving bioavailability and supporting cell activities during in vitro regeneration. However, these proteins are rapidly digested by enzymes, locally produced by many different cell types, both in vitro and in vivo, with significant drawbacks in the control of molecular release. Hence, we have investigated three post-processing strategies based on the use of different crosslinking agents-(1-ethyl-3-(3 dimethylaminopropyl)carbodiimide hydrochloride) (EDC), glyceraldehyde (GC), and 1,4-butanediol diglycidyl ether (BDDGE)-to delay the dissolution time of gelatin macromolecules from bicomponent fibers. All of the qualitative (i.e., SEM, TGA) and quantitative (i.e., Trinitrobenzene sulfonate (TNBS) and bicinchoninic acid (BCA) assays) morphological/chemical analyses as well as biocompatibility assays indicate that EDC crosslinking improves the chemical stability of bicomponent fibers at 37 degrees C and provides a more efficient encapsulation and controlled sustained release of drug, thus resulting in the best post-treatment to design bio-inspired fibrous platforms for the extended in vitro release of drugs. PMID- 29035304 TI - Introduction to the Toxins Special Issue on LC-MS/MS Methods for Mycotoxin Analysis. AB - Various filamentous fungi can produce secondary metabolites, whose biochemical significance in fungal growth and development has not always been fully clarified; however, some of these metabolites can cause deleterious effects on other organisms and are classified as mycotoxins [...]. PMID- 29035305 TI - NIR Rapid Assessments of Blumea balsamifera (Ai-na-xiang) in China. AB - Blumea balsamifera (Ai-na-xiang) is used as an important plant source of natural borneol, which is widely used in the pharmaceutical industry. The aim of this study was to establish the methods based on near infrared (NIR) spectroscopy for determining the geographical origin of B. balsamifera, as well as developing a method for the quantitative rapid analysis of the active pharmaceutical ingredients (APIs). A total of 109 samples were collected from China in 2013 and arbitrarily divided into calibration and prediction sets using the Kennard-Stone algorithm. The l-borneol and total flavone contents of the samples were measured by gas chromatography and ultraviolet-visible spectroscopy, respectively. The NIR spectra were acquired using an integrating sphere and a partial least squares (PLS) model was built using the optimum wavelength regions, which were selected using a synergy interval partial least-squares (SiPLS) algorithm. The root mean square errors of prediction of the l-borneol and total flavone models were 0.0779 and 2.2694 mg/g, with R2 of 0.9069 and 0.8013, respectively. A discriminant model to determine the geographical origin of B. balsamifera (Guizhou and Hainan) was also established using a partial least squares discriminant analysis method with an optimum pretreatment method. The prediction accuracy rate of the model was 100%. NIR spectroscopy can be used as a reliable and environmentally friendly method to determine the API and the origin of different B. balsamifera samples. PMID- 29035307 TI - Effects of Three Lipidated Oxytocin Analogs on Behavioral Deficits in CD38 Knockout Mice. AB - Oxytocin (OT) is a nonapeptide that plays an important role in social behavior. Nasal administration of OT has been shown to improve trust in healthy humans and social interaction in autistic subjects. As is consistent with the nature of a peptide, OT has some unfavorable characteristics: it has a short half-life in plasma and shows poor permeability across the blood-brain barrier. Analogs with long-lasting effects may overcome these drawbacks. To this end, we have synthesized three analogs: lipo-oxytocin-1 (LOT-1), in which two palmitoyl groups are conjugated to the cysteine and tyrosine residues, lipo-oxytocin-2 (LOT-2) and lipo-oxytocin-3 (LOT-3), which include one palmitoyl group conjugated at the cysteine or tyrosine residue, respectively. The following behavioral deficits were observed in CD38 knockout (CD38-/-) mice: a lack of paternal nurturing in CD38-/- sires, decreased ability for social recognition, and decreased sucrose consumption. OT demonstrated the ability to recover these disturbances to the level of wild-type mice for 30 min after injection. LOT-2 and LOT-3 partially recovered the behaviors for a short period. Conversely, LOT-1 restored the behavioral parameters, not for 30 min, but for 24 h. These data suggest that the lipidation of OT has some therapeutic benefits, and LOT-1 would be most useful because of its long-last activity. PMID- 29035306 TI - Platelet Endothelial Cell Adhesion Molecule-1 and Oligodendrogenesis: Significance in Alcohol Use Disorders. AB - Alcoholism is a chronic relapsing disorder with few therapeutic strategies that address the core pathophysiology. Brain tissue loss and oxidative damage are key components of alcoholism, such that reversal of these phenomena may help break the addictive cycle in alcohol use disorder (AUD). The current review focuses on platelet endothelial cell adhesion molecule 1 (PECAM-1), a key modulator of the cerebral endothelial integrity and neuroinflammation, and a targetable transmembrane protein whose interaction within AUD has not been well explored. The current review will elaborate on the function of PECAM-1 in physiology and pathology and infer its contribution in AUD neuropathology. Recent research reveals that oligodendrocytes, whose primary function is myelination of neurons in the brain, are a key component in new learning and adaptation to environmental challenges. The current review briefly introduces the role of oligodendrocytes in healthy physiology and neuropathology. Importantly, we will highlight the recent evidence of dysregulation of oligodendrocytes in the context of AUD and then discuss their potential interaction with PECAM-1 on the cerebral endothelium. PMID- 29035310 TI - A Sub-Microanalysis Approach in Chemical Characterisation of Gold Nanorods Formed by a Novel Polymer-Immobilised Gold Seeds Base. AB - Gold nanorods (GNRs) have been fabricated by a novel polymer-immobilised seed mediated method using ultraviolet (UV) photoreduced gold-polymethylmethacrylate (Au-PMMA) nanocomposites as a seed platform and characterised at sub-micron scale regime with synchrotron-based techniques; near-edge X-ray absorption fine structure (NEXAFS) spectroscopy and X-ray fluorescence (XRF) mapping. In this report, it is shown that investigating polymer nanocomposites using combination of XRF mapping and NEXAFS spectromicroscopy can help to see the growth phenomenon from different perspective than conventional characterisation techniques. XRF maps are used to explore distribution of the constituent elements and showing how polymer matrix making stripe patterns along with regions where GNRs are formed. NEXAFS carbon (C) K-edge spectra have been taken at three different stages of synthesis: (1) on Au-PMMA nanocomposites before UV irradiation, (2) after gold nanoparticles formation, and (3) after GNRs formation. It reveals how polymer matrix has been degraded during GNRs formation and avoiding chemically or physically damage to polymer matrix is crucial to control the formation of GNRs. PMID- 29035311 TI - Modeling of Interactions between the Zebrafish Hatching Enzyme ZHE1 and A Series of Metal Oxide Nanoparticles: Nano-QSAR and Causal Analysis of Inactivation Mechanisms. AB - The quantitative relationships between the activity of zebrafish ZHE1 enzyme and a series of experimental and physicochemical features of 24 metal oxide nanoparticles were revealed. Vital characteristics of the nanoparticles' structure were reflected using both experimental and theoretical descriptors. The developed quantitative structure-activity relationship model for nanoparticles (nano-QSAR) was capable of predicting the enzyme inactivation based on four descriptors: the hydrodynamic radius, mass density, the Wigner-Seitz radius, and the covalent index. The nano-QSAR model was calculated using the non-linear regression tree M5P algorithm. The developed model is characterized by high robustness R2bagging = 0.90 and external predictivity Q2EXT = 0.93. This model is in agreement with modern theories of aquatic toxicity. Dissolution and size dependent characteristics are among the key driving forces for enzyme inactivation. It was proven that ZnO, CuO, Cr2O3, and NiO nanoparticles demonstrated strong inhibitory effects because of their solubility. The proposed approach could be used as a non-experimental alternative to animal testing. Additionally, methods of causal discovery were applied to shed light on the mechanisms and modes of action. PMID- 29035312 TI - Temperature Dependence of the Resonant Magnetoelectric Effect in Layered Heterostructures. AB - The dependence of the resonant direct magnetoelectric effect on temperature is studied experimentally in planar composite structures. Samples of rectangular shapes with dimensions of 5 mm * 20 mm employed ferromagnetic layers of either an amorphous (metallic glass) alloy or nickel with a thickness of 20-200 MUm and piezoelectric layers of single crystalline langatate material or lead zirconate titanate piezoelectric ceramics with a thickness of 500 MUm. The temperature of the samples was varied in a range between 120 and 390 K by blowing a gaseous nitrogen stream around them. It is shown that the effective characteristics of the magnetoelectric effect-such as the mechanical resonance frequency fr, the quality factor Q and the magnitude of the magnetoelectric coefficient alphaE at the resonance frequency-are contingent on temperature. The interrelations between the temperature changes of the characteristics of the magnetoelectric effect and the temperature variations of the following material parameters-Young's modulus Y, the acoustic quality factor of individual layers, the dielectric constant epsilon, the piezoelectric modulus d of the piezoelectric layer as well as the piezomagnetic coefficients lambda(n) of the ferromagnetic layer-are established. The effect of temperature on the characteristics of the nonlinear magnetoelectric effect is observed for the first time. The results can be useful for designing magnetoelectric heterostructures with specified temperature characteristics, in particular, for the development of thermally stabilized magnetoelectric devices. PMID- 29035308 TI - Gut Microbiota and Nonalcoholic Fatty Liver Disease: Insights on Mechanisms and Therapy. AB - The gut microbiota plays critical roles in development of obese-related metabolic diseases such as nonalcoholic fatty liver disease (NAFLD), type 2 diabetes(T2D), and insulin resistance(IR), highlighting the potential of gut microbiota-targeted therapies in these diseases. There are various ways that gut microbiota can be manipulated, including through use of probiotics, prebiotics, synbiotics, antibiotics, and some active components from herbal medicines. In this review, we review the main roles of gut microbiota in mediating the development of NAFLD, and the advances in gut microbiota-targeted therapies for NAFLD in both the experimental and clinical studies, as well as the conclusions on the prospect of gut microbiota-targeted therapies in the future. PMID- 29035309 TI - Serum Magnesium Levels in Preterm Infants Are Higher Than Adult Levels: A Systematic Literature Review and Meta-Analysis. AB - Magnesium (Mg) is an essential mineral in the body, impacting the synthesis of biomacromolecules, bone matrix development, energy production, as well as heart, nerve, and muscle function. Although the importance of Mg is evident, reference values for serum Mg (sMg) in pediatric patients (more specifically, in neonates) are not well established. This systematic literature review and meta-analysis (using 47 eligible studies) aims to quantify normal and tolerable ranges of sMg concentrations during the neonatal period and to highlight the factors influencing Mg levels and the importance of regulating sMg levels during pregnancy and birth. In newborns without Mg supplementation during pregnancy, magnesium levels at birth (0.76 (95% CI: 0.52, 0.99) mmol/L) were similar to that of mothers during pregnancy (0.74 (95% CI: 0.43, 1.04) mmol/L), but increased during the first week of life (0.91 (95% CI: 0.55, 1.26) mmol/L) before returning to adult levels. This pattern was also seen in newborns with Mg supplementation during pregnancy, where the average was 1.29 (95% CI: 0.50, 2.08) mmol/L at birth and 1.44 (95% CI: 0.61, 2.27) mmol/L during the first week of life. Factors influencing these levels include prenatal Mg supplementation, gestational age, birth weight, renal maturity/function, and postnatal Mg intake. Elevated Mg levels (>2.5 mmol/L) have been associated with an increased risk of mortality, admission into intensive care, hypotonia, hypotension, and respiratory depression but sMg concentrations up to 2.0 mmol/L appear to be well tolerated in neonates, requiring adequate survey and minimal intervention. PMID- 29035313 TI - Microstructural Modification and Characterization of Sericite. AB - Activated sericite was prepared by thermal modification, acid activation and sodium modification, and it was characterized by X-ray diffraction (XRD) analysis, differential scanning calorimetry (DSC), N2 adsorption test, thermo gravimetric analysis (TGA), nuclear magnetic resonance (NMR), and scanning electron microscope (SEM). The results indicated that the crystallinity of raw sericite decreased after thermal modification; the pores with sizes between 5 nm to 10 nm of thermal-modified sericite have collapsed and the surface area increased after thermal modification. The dissolving-out amount of Al3+ reached ca. 31 mg/g in the optimal processing conditions during acid activation; cation exchange capacity (CEC) of acid-treated sericite increased to 56.37 mmol/100 g meq/g after sodium modification compared with that of raw sericite (7.42 mmol/100 g). The activated sericite is a promising matrix for clay-polymer nanocomposites. PMID- 29035315 TI - Breaking Up Sitting with Light-Intensity Physical Activity: Implications for Shift-Workers. AB - Prolonged sitting, restricted sleep, and circadian disruption are all independent risk factors for non-communicable diseases. Previous research has demonstrated that breaking up sitting with light-intensity physical activity has clear benefits for the health of day workers, but these findings may not apply in the presence of sleep restriction and/or circadian disruption-both of which are commonly experienced by shift-workers. Specifically, sleep restriction, and circadian disruption result in acute physiological changes that may offset the benefits of breaking up sitting. This commentary will explore the potential benefits of breaking up sitting for health, work performance, and subsequent sleep in shift-workers. Future areas of research designed to understand the mechanisms by which prolonged sitting and shift work impact worker health and safety and to support the design of effective occupational health and safety interventions are proposed. PMID- 29035314 TI - Animal Toxins Providing Insights into TRPV1 Activation Mechanism. AB - Beyond providing evolutionary advantages, venoms offer unique research tools, as they were developed to target functionally important proteins and pathways. As a key pain receptor in the nociceptive pathway, transient receptor potential vanilloid 1 (TRPV1) of the TRP superfamily has been shown to be a target for several toxins, as a way of producing pain to deter predators. Importantly, TRPV1 is involved in thermoregulation, inflammation, and acute nociception. As such, toxins provide tools to understand TRPV1 activation and modulation, a critical step in advancing pain research and the development of novel analgesics. Indeed, the phytotoxin capsaicin, which is the spicy chemical in chili peppers, was invaluable in the original cloning and characterization of TRPV1. The unique properties of each subsequently characterized toxin have continued to advance our understanding of functional, structural, and biophysical characteristics of TRPV1. By building on previous reviews, this work aims to provide a comprehensive summary of the advancements made in TRPV1 research in recent years by employing animal toxins, in particular DkTx, RhTx, BmP01, Echis coloratus toxins, APHCs and HCRG21. We examine each toxin's functional aspects, behavioral effects, and structural features, all of which have contributed to our current knowledge of TRPV1. We additionally discuss the key features of TRPV1's outer pore domain, which proves to be the target of the currently discussed toxins. PMID- 29035316 TI - Non-Traditional Risk Factors of Albuminuria in the Pediatric Population: A Scoping Review. AB - The presence of albumin in urine has been used for more than four decades as a marker of renal and cardiovascular damage. Most of the information on this marker is related to adults. The prevalence of albuminuria in the pediatric population has been reported as being 2.2-12.8% in some countries. Most research in this field is related to albuminuria and diseases, such as diabetes and hypertension. Using the methodology described by Arksey and O'Malley in 2005, a scoping review was carried out to show that the presence of albumin in urine in the pediatric population might be associated with environmental, demographic, congenital, infectious, and non-infectious factors. The information collected is supported by 74 references present in PubMed. The results reveal the multiple causes associated with albuminuria in the pediatric population. This information can be very useful for clinical practice by adding knowledge about albuminuria behavior in children. PMID- 29035317 TI - Systematic Review: Land Cover, Meteorological, and Socioeconomic Determinants of Aedes Mosquito Habitat for Risk Mapping. AB - Asian tiger and yellow fever mosquitoes (Aedes albopictus and Ae. aegypti) are global nuisances and are competent vectors for viruses such as Chikungunya (CHIKV), Dengue (DV), and Zika (ZIKV). This review aims to analyze available spatiotemporal distribution models of Aedes mosquitoes and their influential factors. A combination of five sets of 3-5 keywords were used to retrieve all relevant published models. Five electronic search databases were used: PubMed, MEDLINE, EMBASE, Scopus, and Google Scholar through 17 May 2017. We generated a hierarchical decision tree for article selection. We identified 21 relevant published studies that highlight different combinations of methodologies, models and influential factors. Only a few studies adopted a comprehensive approach highlighting the interaction between environmental, socioeconomic, meteorological and topographic systems. The selected articles showed inconsistent findings in terms of number and type of influential factors affecting the distribution of Aedes vectors, which is most likely attributed to: (i) limited availability of high-resolution data for physical variables, (ii) variation in sampling methods; Aedes feeding and oviposition behavior; (iii) data collinearity and statistical distribution of observed data. This review highlights the need and sets the stage for a rigorous multi-system modeling approach to improve our knowledge about Aedes presence/abundance within their flight range in response to the interaction between environmental, socioeconomic, and meteorological systems. PMID- 29035318 TI - The Role of the S40 Gene Family in Leaf Senescence. AB - Senescence affect different traits of plants, such as the ripening of fruit, number, quality and timing of seed maturation. While senescence is induced by age, growth hormones and different environmental stresses, a highly organized genetic mechanism related to substantial changes in gene expression regulates the process. Only a few genes associated to senescence have been identified in crop plants despite the vital significance of senescence for crop yield. The S40 gene family has been shown to play a role in leaf senescence. The barley HvS40 gene is one of the senescence marker genes which shows expression during age-dependent as well as dark-induced senescence. Like barley HvS40, the Arabidopsis AtS40-3 gene is also induced during natural senescence as well as in response to treatment with abscisic acid, salicylic acid, darkness and pathogen attack. It is speculated that rice OsS40 has a similar function in the leaf senescence of rice. PMID- 29035320 TI - Personomics: The Missing Link in the Evolution from Precision Medicine to Personalized Medicine. AB - Clinical practice guidelines have been developed for many common conditions based on data from randomized controlled trials. When medicine is informed solely by clinical practice guidelines, however, the patient is not treated as an individual, but rather a member of a group. Precision medicine, as defined herein, characterizes unique biological characteristics of the individual or of specimens obtained from an individual to tailor diagnostics and therapeutics to a specific patient. These unique biological characteristics are defined by the tools of precision medicine: genomics, proteomics, metabolomics, epigenomics, pharmacogenomics, and other "-omics." Personalized medicine, as defined herein, uses additional information about the individual derived from knowing the patient as a person. These unique personal characteristics are defined by tools known as personomics which takes into account an individual's personality, preferences, values, goals, health beliefs, social support network, financial resources, and unique life circumstances that affect how and when a given health condition will manifest in that person and how that condition will respond to treatment. In this paradigm, precision medicine may be considered a necessary step in the evolution of medical care to personalized medicine, with personomics as the missing link. PMID- 29035319 TI - Nutritional Therapy in Liver Transplantation. AB - Protein-energy malnourishment is commonly encountered in patients with end-stage liver disease who undergo liver transplantation. Malnutrition may further increase morbidity, mortality and costs in the post-transplantation setting. The importance of carefully assessing the nutritional status during the work-up of patients who are candidates for liver replacement is widely recognized. The metabolic abnormalities induced by liver failure render the conventional assessment of nutritional status to be challenging. Preoperative loss of skeletal muscle mass, namely, sarcopenia, has a significant detrimental impact on post transplant outcomes. It is essential to provide sufficient nutritional support during all phases of liver transplantation. Oral nutrition is preferred, but tube enteral nutrition may be required to provide the needed energy intake. Herein, the latest currently employed perioperative nutritional interventions in liver transplant recipients are thoroughly illustrated including synbiotics, micronutrients, branched-chain amino acid supplementation, immunonutrition formulas, fluid and electrolyte balance, the offering of nocturnal meals, dietary counselling, exercise and rehabilitation. PMID- 29035322 TI - Analysis of Genetic Diversity and Structure Pattern of Indigofera Pseudotinctoria in Karst Habitats of the Wushan Mountains Using AFLP Markers. AB - Indigofera pseudotinctoria Mats is an agronomically and economically important perennial legume shrub with a high forage yield, protein content and strong adaptability, which is subject to natural habitat fragmentation and serious human disturbance. Until now, our knowledge of the genetic relationships and intraspecific genetic diversity for its wild collections is still poor, especially at small spatial scales. Here amplified fragment length polymorphism (AFLP) technology was employed for analysis of genetic diversity, differentiation, and structure of 364 genotypes of I. pseudotinctoria from 15 natural locations in Wushan Montain, a highly structured mountain with typical karst landforms in Southwest China. We also tested whether eco-climate factors has affected genetic structure by correlating genetic diversity with habitat features. A total of 515 distinctly scoreable bands were generated, and 324 of them were polymorphic. The polymorphic information content (PIC) ranged from 0.694 to 0.890 with an average of 0.789 per primer pair. On species level, Nei's gene diversity (Hj), the Bayesian genetic diversity index (HB) and the Shannon information index (I) were 0.2465, 0.2363 and 0.3772, respectively. The high differentiation among all sampling sites was detected (FST = 0.2217, GST = 0.1746, G'ST = 0.2060, thetaB = 0.1844), and instead, gene flow among accessions (Nm = 1.1819) was restricted. The population genetic structure resolved by the UPGMA tree, principal coordinate analysis, and Bayesian-based cluster analyses irrefutably grouped all accessions into two distinct clusters, i.e., lowland and highland groups. The population genetic structure resolved by the UPGMA tree, principal coordinate analysis, and Bayesian-based cluster analyses irrefutably grouped all accessions into two distinct clusters, i.e., lowland and highland groups. This structure pattern may indicate joint effects by the neutral evolution and natural selection. Restricted Nm was observed across all accessions, and genetic barriers were detected between adjacent accessions due to specifically geographical landform. PMID- 29035324 TI - A Mesoscopic Analytical Model to Predict the Onset of Wrinkling in Plain Woven Preforms under Bias Extension Shear Deformation. AB - A mesoscopic analytical model of wrinkling of Plain-Woven Composite Preforms (PWCPs) under the bias extension test is presented, based on a new instability analysis. The analysis is aimed to facilitate a better understanding of the nature of wrinkle formation in woven fabrics caused by large in-plane shear, while it accounts for the effect of fabric and process parameters on the onset of wrinkling. To this end, the mechanism of wrinkle formation in PWCPs in mesoscale is simplified and an equivalent structure composed of bars and different types of springs is proposed, mimicking the behavior of a representative PWCP element at the post-locking state. The parameters of this equivalent structure are derived based on geometric and mechanical characteristics of the PWCP. The principle of minimum total potential energy is employed to formluate the model, and experimental validation is carried out to reveal the effectiveness of the derived wrinkling prediction equation. PMID- 29035321 TI - A Novel Multi-Epitope Vaccine Based on Urate Transporter 1 Alleviates Streptozotocin-Induced Diabetes by Producing Anti-URAT1 Antibody and an Immunomodulatory Effect in C57BL/6J Mice. AB - Hyperuricemia (HUA) is related to diabetes. Uric acid-induced inflammation and oxidative stress are risk factors for diabetes and its complications. Human urate transporter 1 (URAT1) regulates the renal tubular reabsorption of uric acid. IA 2(5)-P2-1, a potent immunogenic carrier designed by our laboratory, can induce high-titer specific antibodies when it carries a B cell epitope, such as B cell epitopes of DPP4 (Dipeptidyl peptidase-4), xanthine oxidase. In this report, we describe a novel multi-epitope vaccine composing a peptide of URAT1, an anti diabetic B epitope of insulinoma antigen-2(IA-2) and a Th2 epitope (P2:IPALDSLTPANED) of P277 peptide in human heat shock protein 60 (HSP60). Immunization with the multi-epitope vaccine in streptozotocin-induced diabetes C57BL/6J mice successfully induced specific anti-URAT1 antibody, which inhibited URAT1 action and uric acid reabsorption, and increased pancreatic insulin level with a lower insulitis incidence. Vaccination with U-IA-2(5)-P2-1 (UIP-1) significantly reduced blood glucose and uric acid level, increased Th2 cytokines interleukin (IL)-10 and IL-4, and regulated immune reactions through a balanced Th1/Th2 ratio. These results demonstrate that the URAT1-based multi-epitope peptide vaccine may be a suitable therapeutic approach for diabetes and its complications. PMID- 29035323 TI - Hypothalamic-Pituitary-Adrenal Axis Modulation of Glucocorticoids in the Cardiovascular System. AB - The collective of endocrine organs acting in homeostatic regulation-known as the hypothalamic-pituitary-adrenal (HPA) axis-comprises an integration of the central nervous system as well as peripheral tissues. These organs respond to imminent or perceived threats that elicit a stress response, primarily culminating in the release of glucocorticoids into the systemic circulation by the adrenal glands. Although the secretion of glucocorticoids serves to protect and maintain homeostasis in the typical operation at baseline levels, inadequate regulation can lead to physiologic and psychologic pathologies. The cardiovascular system is especially susceptible to prolonged dysregulation of the HPA axis and glucocorticoid production. There is debate about whether cardiovascular health risks arise from the direct detrimental effects of stress axis activation or whether pathologies develop secondary to the accompanying metabolic strain of excess glucocorticoids. In this review, we will explore the emerging research that indicates stress does have direct effects on the cardiovascular system via the HPA axis activation, with emphasis on the latest research on the impact of glucocorticoids signaling in the vasculature and the heart. PMID- 29035326 TI - Prebiotic RNA Network Formation: A Taxonomy of Molecular Cooperation. AB - Cooperation is essential for evolution of biological complexity. Recent work has shown game theoretic arguments, commonly used to model biological cooperation, can also illuminate the dynamics of chemical systems. Here we investigate the types of cooperation possible in a real RNA system based on the Azoarcus ribozyme, by constructing a taxonomy of possible cooperative groups. We construct a computational model of this system to investigate the features of the real system promoting cooperation. We find triplet interactions among genotypes are intrinsically biased towards cooperation due to the particular distribution of catalytic rate constants measured empirically in the real system. For other distributions cooperation is less favored. We discuss implications for understanding cooperation as a driver of complexification in the origin of life. PMID- 29035325 TI - Advanced Prodrug Strategies in Nucleoside and Non-Nucleoside Antiviral Agents: A Review of the Recent Five Years. AB - Background: Poor pharmacokinetic profiles and resistance are the main two drawbacks from which currently used antiviral agents suffer, thus make them excellent targets for research, especially in the presence of viral pandemics such as HIV and hepatitis C. Methods: The strategies employed in the studies covered in this review were sorted by the type of drug synthesized into ester prodrugs, targeted delivery prodrugs, macromolecular prodrugs, other nucleoside conjugates, and non-nucleoside drugs. Results: Utilizing the ester prodrug approach a novel isopropyl ester prodrug was found to be potent HIV integrase inhibitor. Further, employing the targeted delivery prodrug zanamivir and valine ester prodrug was made and shown a sole delivery of zanamivir. Additionally, VivaGel, a dendrimer macromolecular prodrug, was found to be very efficient and is now undergoing clinical trials. Conclusions: Of all the strategies employed (ester, targeted delivery, macromolecular, protides and nucleoside analogues, and non-nucleoside analogues prodrugs), the most promising are nucleoside analogues and macromolecular prodrugs. The macromolecular prodrug VivaGel works by two mechanisms: envelope mediated and receptor mediated disruption. Nucleotide analogues have witnessed productive era in the recent past few years. The era of non-interferon based treatment of hepatitis (through direct inhibitors of NS5A) has dawned. PMID- 29035327 TI - Immortalized Muscle Cell Model to Test the Exon Skipping Efficacy for Duchenne Muscular Dystrophy. AB - Duchenne muscular dystrophy (DMD) is a lethal genetic disorder that most commonly results from mutations disrupting the reading frame of the dystrophin (DMD) gene. Among the therapeutic approaches employed, exon skipping using antisense oligonucleotides (AOs) is one of the most promising strategies. This strategy aims to restore the reading frame, thus producing a truncated, yet functioning dystrophin protein. In 2016, the Food and Drug Administration (FDA) conditionally approved the first AO-based drug, eteplirsen (Exondys 51), developed for DMD exon 51 skipping. An accurate and reproducible method to quantify exon skipping efficacy is essential for evaluating the therapeutic potential of different AOs sequences. However, previous in vitro screening studies have been hampered by the limited proliferative capacity and insufficient amounts of dystrophin expressed by primary muscle cell lines that have been the main system used to evaluate AOs sequences. In this paper, we illustrate the challenges associated with primary muscle cell lines and describe a novel approach that utilizes immortalized cell lines to quantitatively evaluate the exon skipping efficacy in in vitro studies. PMID- 29035328 TI - Pterodontic Acid Isolated from Laggera pterodonta Inhibits Viral Replication and Inflammation Induced by Influenza A Virus. AB - Laggera pterodonta (DC.) Benth. is a traditional Chinese medicine. The previous study revealed that the crude extracts of this herb could inhibit influenza virus infection, but its anti-influenza components and underlying mechanism of action remain unknown. Column chromatography was performed to isolate components from the plant. Activity against influenza virus of the compound was determined by CPE inhibition assay. Neuraminidase (NA) inhibition was measured by chemiluminescence assay. The anti-virus and anti-inflammation effects were determined using dual luciferase reporter assay, immunofluorescence, quantitative real-time PCR and luminex assay. Pterodontic acid was isolated from L. pterodonta, which showed selective anti-viral activities to H1 subtype of human influenza A virus. Meanwhile, the NA activity was not obviously inhibited by the compound. Further experiments exhibited that the compound can suppress the activation of NF-kappaB signal pathway and export of viral RNP complexes from the nucleus. In addition, it can significantly attenuate expression of the pro-inflammatory molecules IL-6, MIP-1beta, MCP-1, and IP-10 induced by human influenza A virus (H1N1) and similarly downregulate expression of cytokines and chemokines induced by avian influenza A virus (H9N2). This study showed that in vitro antiviral activity of pterodontic acid is most probably associated with inhibiting the replication of influenza A virus by blocking nuclear export of viral RNP complexes, and attenuating the inflammatory response by inhibiting activation of the NF-kappaB pathway. Pterodontic acid might be a potential antiviral agent against influenza A virus. PMID- 29035329 TI - Camera Calibration Robust to Defocus Using Phase-Shifting Patterns. AB - Camera parameters can't be estimated accurately using traditional calibration methods if the camera is substantially defocused. To tackle this problem, an improved approach based on three phase-shifting circular grating (PCG) arrays is proposed in this paper. Rather than encoding the feature points into the intensity, the proposed method encodes the feature points into the phase distribution, which can be recovered precisely using phase-shifting methods. The PCG centers are extracted as feature points, which can be located accurately even if the images are severely blurred. Unlike the previous method which just uses a single circle, the proposed method uses a concentric circle to estimate the PCG center, such that the center can be located precisely. This paper also presents a sorting algorithm for the detected feature points automatically. Experiments with both synthetic and real images were carried out to validate the performance of the method. And the results show that the superiority of PCG arrays compared with the concentric circle array even under severe defocus. PMID- 29035330 TI - Whites but Not Blacks Gain Life Expectancy from Social Contacts. AB - Background. Recent research suggests that the health gain from economic resources and psychological assets may be systematically larger for Whites than Blacks. Aim. This study aimed to assess whether the life expectancy gain associated with social contacts over a long follow up differs for Blacks and Whites. Methods. Data came from the Americans' Changing Lives (ACL) Study, 1986-2011. The sample was a nationally representative sample of American adults 25 and older, who were followed for up to 25 years (n = 3361). Outcome was all-cause mortality. The main predictor was social contacts defined as number of regular visits with friends, relatives, and neighbors. Baseline demographics (age and gender), socioeconomic status (education, income, and employment), health behaviors (smoking and drinking), and health (chronic medical conditions, obesity, and depressive symptoms) were controlled. Race was the focal moderator. Cox proportional hazard models were used in the pooled sample and based on race. Results. More social contacts predicted higher life expectancy in the pooled sample. A significant interaction was found between race and social contacts, suggesting that the protective effect of more social contacts is smaller for Blacks than Whites. In stratified models, more social contacts predicted an increased life expectancy for Whites but not Blacks. Conclusion. Social contacts increase life expectancy for White but not Black Americans. This study introduces social contacts as another social resource that differentially affects health of Whites and Blacks. PMID- 29035332 TI - Random Network Models to Predict the Long-Term Impact of HPV Vaccination on Genital Warts. AB - The Human papillomaviruses (HPV) vaccine induces a herd immunity effect in genital warts when a large number of the population is vaccinated. This aspect should be taken into account when devising new vaccine strategies, like vaccination at older ages or male vaccination. Therefore, it is important to develop mathematical models with good predictive capacities. We devised a sexual contact network that was calibrated to simulate the Spanish epidemiology of different HPV genotypes. Through this model, we simulated the scenario that occurred in Australia in 2007, where 12-13 year-old girls were vaccinated with a three-dose schedule of a vaccine containing genotypes 6 and 11, which protect against genital warts, and also a catch-up program in women up to 26 years of age. Vaccine coverage were 73 % in girls with three doses and with coverage rates decreasing with age until 52 % for 20-26 year-olds. A fast 59 % reduction in the genital warts diagnoses occurred in the model in the first years after the start of the program, similar to what was described in the literature. PMID- 29035333 TI - Water Quality Sensing and Spatio-Temporal Monitoring Structure with Autocorrelation Kernel Methods. AB - Pollution on water resources is usually analyzed with monitoring campaigns, which consist of programmed sampling, measurement, and recording of the most representative water quality parameters. These campaign measurements yields a non uniform spatio-temporal sampled data structure to characterize complex dynamics phenomena. In this work, we propose an enhanced statistical interpolation method to provide water quality managers with statistically interpolated representations of spatial-temporal dynamics. Specifically, our proposal makes efficient use of the a priori available information of the quality parameter measurements through Support Vector Regression (SVR) based on Mercer's kernels. The methods are benchmarked against previously proposed methods in three segments of the Machangara River and one segment of the San Pedro River in Ecuador, and their different dynamics are shown by statistically interpolated spatial-temporal maps. The best interpolation performance in terms of mean absolute error was the SVR with Mercer's kernel given by either the Mahalanobis spatial-temporal covariance matrix or by the bivariate estimated autocorrelation function. In particular, the autocorrelation kernel provides with significant improvement of the estimation quality, consistently for all the six water quality variables, which points out the relevance of including a priori knowledge of the problem. PMID- 29035334 TI - A Low Cost Sensors Approach for Accurate Vehicle Localization and Autonomous Driving Application. AB - Autonomous driving in public roads requires precise localization within the range of few centimeters. Even the best current precise localization system based on the Global Navigation Satellite System (GNSS) can not always reach this level of precision, especially in an urban environment, where the signal is disturbed by surrounding buildings and artifacts. Laser range finder and stereo vision have been successfully used for obstacle detection, mapping and localization to solve the autonomous driving problem. Unfortunately, Light Detection and Ranging (LIDARs) are very expensive sensors and stereo vision requires powerful dedicated hardware to process the cameras information. In this context, this article presents a low-cost architecture of sensors and data fusion algorithm capable of autonomous driving in narrow two-way roads. Our approach exploits a combination of a short-range visual lane marking detector and a dead reckoning system to build a long and precise perception of the lane markings in the vehicle's backwards. This information is used to localize the vehicle in a map, that also contains the reference trajectory for autonomous driving. Experimental results show the successful application of the proposed system on a real autonomous driving situation. PMID- 29035331 TI - Nutritional Needs and Support for Children with Chronic Liver Disease. AB - Malnutrition has become a dangerously common problem in children with chronic liver disease, negatively impacting neurocognitive development and growth. Furthermore, many children with chronic liver disease will eventually require liver transplantation. Thus, this association between malnourishment and chronic liver disease in children becomes increasingly alarming as malnutrition is a predictor of poorer outcomes in liver transplantation and is often associated with increased morbidity and mortality. Malnutrition requires aggressive and appropriate management to correct nutritional deficiencies. A comprehensive review of the literature has found that infants with chronic liver disease (CLD) are particularly susceptible to malnutrition given their low reserves. Children with CLD would benefit from early intervention by a multi-disciplinary team, to try to achieve nutritional rehabilitation as well as to optimize outcomes for liver transplant. This review explains the multifactorial nature of malnutrition in children with chronic liver disease, defines the nutritional needs of these children, and discusses ways to optimize their nutritional. PMID- 29035335 TI - Selectivity Enhancement in Electronic Nose Based on an Optimized DQN. AB - In order to enhance the selectivity of metal oxide gas sensors, we use a flow modulation method to exploit transient sensor information. The method is based on modulating the flow of the carrier gas that brings the species to be measured into the sensor chamber. We present an active perception strategy by using a DQN which can optimize the flow modulation online. The advantage of DQN is not only that the classification accuracy is higher than traditional methods such as PCA, but also that it has a good adaptability under small samples and labeled data. From observed values of the sensors array and its past experiences, the DQN learns an action policy to change the flow speed dynamically that maximizes the total rewards (or minimizes the classification error). Meanwhile, a CNN is trained to predict sample class and reward according to current actions and observation of sensors. We demonstrate our proposed methods on a gases classification problem in a real time environment. The results show that the DQN learns to modulate flow to classify different gas and the correct rates of gases are: sesame oil 100%, lactic acid 80%, acetaldehyde 80%, acetic acid 80%, and ethyl acetate 100%, the average correct rate is 88%. Compared with the traditional method, the results of PCA are: sesame oil 100%, acetic acid 24%, acetaldehyde 100%, lactic acid 56%, ethyl acetate 68%, the average accuracy rate is 69.6%. DQN uses fewer steps to achieve higher recognition accuracy and improve the recognition speed, and to reduce the training and testing costs. PMID- 29035336 TI - Transition of Emission Colours as a Consequence of Heat-Treatment of Carbon Coated Ce3+-Doped YAG Phosphors. AB - To modify the luminescence properties of Ce3+-doped Y3Al5O12 (YAG) phosphors, they have been coated with a carbon layer by chemical vapor deposition and subsequently heat-treated at high temperature under N2 atmosphere. Luminescence of the carbon coated YAG:Ce3+ phosphors has been investigated as a function of heat-treatment at 1500 and 1650 degrees C. The 540 nm emission intensity of C@YAG:Ce3+ is the highest when heated at 1650 degrees C, while a blue emission at 400-420 nm is observed when heated at 1500 degrees C but not at 1650 degrees C. It is verified by X-ray diffraction (XRD) that the intriguing luminescence changes are induced by the formation of new phases in C@YAG:Ce3+-1500 degrees C, which disappear in C@YAG:Ce3+-1650 degrees C. In order to understand the mechanisms responsible for the enhancement of YAG:Ce3+ emission and the presence of the blue emission observed for C@YAG:Ce3+-1500 degrees C, the samples have been investigated by a combination of several electron microscopy techniques, such as HRTEM, SEM-CL, and SEM-EDS. This local and cross-sectional analysis clearly reveals a gradual transformation of phase and morphology in heated C@YAG:Ce3+ phosphors, which is related to a reaction between C and YAG:Ce3+ in N2 atmosphere. Through reaction between the carbon layer and YAG host materials, the emission colour of the phosphors can be modified from yellow, white, and then back to yellow under UV excitation as a function of heat-treatment in N2 atmosphere. PMID- 29035337 TI - Role of Information Anxiety and Information Load on Processing of Prescription Drug Information Leaflets. AB - In this study, we evaluate the role of information anxiety and information load on the intention to read information from prescription drug information leaflets (PILs). These PILs were developed based on the principals of information load and consumer information processing. This was an experimental prospective repeated measures study conducted in the United States where 360 (62% response rate) university students (>18 years old) participated. Participants were presented with a scenario followed by exposure to the three drug product information sources used to operationalize information load. The three sources were: (i) current practice; (ii) pre-existing one-page text only; and (iii) interventional one-page prototype PILs designed for the study. Information anxiety was measured as anxiety experienced by the individual when encountering information. The outcome variable of intention to read PILs was defined as the likelihood that the patient will read the information provided in the leaflets. A survey questionnaire was used to capture the data and the objectives were analyzed by performing a repeated measures MANOVA using SAS version 9.3. When compared to current practice and one-page text only leaflets, one-page PILs had significantly lower scores on information anxiety (p < 0.001) and information load (p < 0.001). The intention to read was highest and significantly different (p < 0.001) for PILs as compared to current practice or text only leaflets. Information anxiety and information load significantly impacted intention to read (p < 0.001). Newly developed PILs increased patient's intention to read and can help in improving the counseling services provided by pharmacists. PMID- 29035338 TI - Integrating Medication Therapy Management (MTM) Services Provided by Community Pharmacists into a Community-Based Accountable Care Organization (ACO). AB - (1) Background: As the U.S. healthcare system evolves from fee-for-service financing to global population-based payments designed to be accountable for both quality and total cost of care, the effective and safe use of medications is gaining increased importance. The purpose of this project was to determine the feasibility of integrating medication therapy management (MTM) services provided by community pharmacists into the clinical care teams and the health information technology (HIT) infrastructure for Minnesota Medicaid recipients of a 12-county community-based accountable care organization (ACO). (2) Methods: The continuous quality improvement evaluation methodology employed in this project was the context + mechanism = outcome (CMO) model to account for the fact that programs only work insofar as they introduce promising ideas, solutions and opportunities in the appropriate social and cultural contexts. Collaborations between a 12 county ACO and 15 community pharmacies in Southwest Minnesota served as the social context for this feasibility study of MTM referrals to community pharmacists. (3) Results: All 15 community pharmacy sites were integrated into the HIT infrastructure through Direct Secure Messaging, and there were 32 recipients who received MTM services subsequent to referrals from the ACO at 5 of the 15 community pharmacies over a 1-year implementation phase. (4) Conclusion: At the conclusion of this project, an effective electronic communication and MTM referral system was activated, and consideration was given to community pharmacists providing MTM in future ACO shared savings agreements. PMID- 29035339 TI - Promoting Effect of Pinostrobin on the Proliferation, Differentiation, and Mineralization of Murine Pre-osteoblastic MC3T3-E1 Cells. AB - Pinostrobin (PI), a natural flavonoid found in a variety of plants, is well known for its rich pharmacological activities. However, its osteogenic function remains unclear. The aim of this study is to evaluate the effect of PI on the proliferation, differentiation, and mineralization of murine pre-osteoblastic MC3T3-E1 cells in vitro using MTT, alkaline phosphatase (ALP) activity, the synthesis of collagen I (Col I) assay, and Von-Kossa staining, respectively. The expression of osteocalcin (OCN) mRNA in cells was detected by real-time PCR. The effect of PI on the differentiation of dexamethasone (DEX)-suppressed cells was also investigated. The results showed that PI greatly promoted the proliferation of MC3T3-E1 cells at 5-80 MUg/mL (p < 0.05 or p < 0.01), and caused a significant elevation of ALP activity, Col I content, and mineralization of osteoblasts at 10 40 MUg/mL (p < 0.05 or p < 0.01), and the expression levels of OCN gene were greatly upregulated after PI treatment (p < 0.01). Furthermore, PI could rescue the inhibition effect of cell differentiation induced by DEX. Taken together, these results indicated that PI could directly promote proliferation, differentiation, and mineralization of MC3T3-E1 cells and has potential for use as a natural treatment for osteoporosis. PMID- 29035340 TI - Special Issue: Improvements for Resveratrol Efficacy. AB - Resveratrol is a well-known phenolic stilbene because of its presence in several edible plants and its proposed properties that are beneficial to human health [...]. PMID- 29035341 TI - Research on the Fusion of Dependent Evidence Based on Rank Correlation Coefficient. AB - In order to meet the higher accuracy and system reliability requirements, the information fusion for multi-sensor systems is an increasing concern. Dempster Shafer evidence theory (D-S theory) has been investigated for many applications in multi-sensor information fusion due to its flexibility in uncertainty modeling. However, classical evidence theory assumes that the evidence is independent of each other, which is often unrealistic. Ignoring the relationship between the evidence may lead to unreasonable fusion results, and even lead to wrong decisions. This assumption severely prevents D-S evidence theory from practical application and further development. In this paper, an innovative evidence fusion model to deal with dependent evidence based on rank correlation coefficient is proposed. The model first uses rank correlation coefficient to measure the dependence degree between different evidence. Then, total discount coefficient is obtained based on the dependence degree, which also considers the impact of the reliability of evidence. Finally, the discount evidence fusion model is presented. An example is illustrated to show the use and effectiveness of the proposed method. PMID- 29035342 TI - Seed Transmission of Beet Curly Top Virus and Beet Curly Top Iran Virus in a Local Cultivar of Petunia in Iran. AB - Beet curly top virus (BCTV) and beet curly top Iran virus (BCTIV) are known as the causal agents of curly top disease in beet and several other dicotyledonous plants in Iran. These viruses are transmitted by Circulifer species, and until now, there has been no confirmed report of their seed transmission. A percentage (38.2-78.0%) of the seedlings developed from the seeds of a petunia local cultivar under insect-free conditions showed stunting, interveinal chlorosis, leaf curling, and vein swelling symptoms, and were infected by BCTV when tested by PCR. Presence of BCTV in seed extracts of petunia local cultivar was confirmed by PCR and IC-PCR, followed by sequencing. Agroinoculation of curly top free petunia plants with a BCTV infectious clone resulted in BCTV infection of plants and their developed seeds. These results show the seed infection and transmission of BCTV in a local cultivar of petunia. Similar experiments performed with BCTIV showed that this virus is also seed transmissible in the same cultivar of petunia, although with a lower rate (8.8-18.5%). Seed transmission of curly top viruses may have significant implications in the epidemiology of these viruses. PMID- 29035343 TI - A Highly Selective and Sensitive Fluorescent Turn-Off Probe for Cu2+ Based on a Guanidine Derivative. AB - A new highly selective and sensitive fluorescent probe for Cu2+, N-n-butyl-4-(1' cyclooctene-1',3',6'-triazole)-1,8-naphthalimide (L), was synthesized and evaluated. The structure of compound L was characterized via IR, 1H-NMR, 13C-NMR and HRMS. The fluorescent probe was quenched by Cu2+ with a 1:1 binding ratio and behaved as a "turn-off" sensor. An efficient and sensitive spectrofluorometric method was developed for detecting and estimating trace levels of Cu2+ in EtOH/H2O. The ligand exhibited excitation and emission maxima at 447 and 518 nm, respectively. The equilibrium binding constant of the ligand with Cu2+ was 1.57 * 104 M-1, as calculated using the Stern. PMID- 29035344 TI - A Phase-Intensity Surface Plasmon Resonance Biosensor for Avian Influenza A (H5N1) Detection. AB - In this paper, we present a phase-intensity surface plasmon resonance (SPR) biosensor and demonstrate its use for avian influenza A (H5N1) antibody biomarker detection. The sensor probes the intensity variation produced by the steep phase response at surface plasmon excitation. The prism sensor head is fixed between a pair of polarizers with a perpendicular orientation angle and a forbidden transmission path. At SPR, a steep phase change is introduced between the p- and s-polarized light, and this rotates the polarization ellipse of the transmission beam. This allows the light at resonance to be transmitted and a corresponding intensity change to be detected. Neither time-consuming interference fringe analysis nor a phase extraction process is required. In refractive index sensing experiments, the sensor resolution was determined to be 6.3 * 10-6 refractive index values (RIU). The sensor has been further applied for H5N1 antibody biomarker detection, and the sensor resolution was determined to be 193.3 ng mL 1, compared to 1 MUg mL-1 and 0.5 MUg mL-1, as reported in literature for influenza antibody detection using commercial Biacore systems. It represents a 517.3% and 258.7% improvement in detection limit, respectively. With the unique features of label-free, real-time, and sensitive detection, the phase-intensity SPR biosensor has promising potential applications in influenza detection. PMID- 29035345 TI - An Improved Scheduling Algorithm for Data Transmission in Ultrasonic Phased Arrays with Multi-Group Ultrasonic Sensors. AB - High data transmission efficiency is a key requirement for an ultrasonic phased array with multi-group ultrasonic sensors. Here, a novel FIFOs scheduling algorithm was proposed and the data transmission efficiency with hardware technology was improved. This algorithm includes FIFOs as caches for the ultrasonic scanning data obtained from the sensors with the output data in a bandwidth-sharing way, on the basis of which an optimal length ratio of all the FIFOs is achieved, allowing the reading operations to be switched among all the FIFOs without time slot waiting. Therefore, this algorithm enhances the utilization ratio of the reading bandwidth resources so as to obtain higher efficiency than the traditional scheduling algorithms. The reliability and validity of the algorithm are substantiated after its implementation in the field programmable gate array (FPGA) technology, and the bandwidth utilization ratio and the real-time performance of the ultrasonic phased array are enhanced. PMID- 29035347 TI - Modeling the Energy Performance of LoRaWAN. AB - LoRaWAN is a flagship Low-Power Wide Area Network (LPWAN) technology that has highly attracted much attention from the community in recent years. Many LoRaWAN end-devices, such as sensors or actuators, are expected not to be powered by the electricity grid; therefore, it is crucial to investigate the energy consumption of LoRaWAN. However, published works have only focused on this topic to a limited extent. In this paper, we present analytical models that allow the characterization of LoRaWAN end-device current consumption, lifetime and energy cost of data delivery. The models, which have been derived based on measurements on a currently prevalent LoRaWAN hardware platform, allow us to quantify the impact of relevant physical and Medium Access Control (MAC) layer LoRaWAN parameters and mechanisms, as well as Bit Error Rate (BER) and collisions, on energy performance. Among others, evaluation results show that an appropriately configured LoRaWAN end-device platform powered by a battery of 2400 mAh can achieve a 1-year lifetime while sending one message every 5 min, and an asymptotic theoretical lifetime of 6 years for infrequent communication. PMID- 29035348 TI - Air-Coupled Ultrasonic Receivers with High Electromechanical Coupling PMN-32%PT Strip-Like Piezoelectric Elements. AB - For improvement of the efficiency of air-coupled ultrasonic transducers PMN-32%PT piezoelectric crystals which possess very high piezoelectric properties may be used. The electromechanical coupling factor of such crystals for all main vibration modes such as the thickness extension and transverse extension modes is more than 0.9. Operation of ultrasonic transducers with such piezoelectric elements in transmitting and receiving modes is rather different. Therefore, for transmission and reception of ultrasonic signals, separate piezoelectric elements with different dimensions must be used. The objective of this research was development of novel air-coupled ultrasonic receivers with PMN-32%PT strip-like piezoelectric elements vibrating in a transverse-extension mode with electromechanically controlled operation and suitable for applications in ultrasonic arrays. Performance of piezoelectric receivers made of the PMN-32%PT strip-like elements vibrating in this mode may be efficiently controlled by selecting geometry of the electrodes covering side surfaces of the piezoelectric element. It is equivalent to introduction of electromechanical damping which does not require any additional backing element. For this purpose; we have proposed the continuous electrodes to divide into two pairs of electrodes. The one pair is used to pick up the electric signal; another one is exploited for electromechanical damping. Two types of electrodes may be used-rectangular or non rectangular-with a gap between them directed at some angle, usually 45 degrees . The frequency bandwidth is wider (up to 9 kHz) in the case of non-rectangular electrodes. The strip-like acoustic matching element bonded to the tip of the PMN 32%PT crystal may significantly enhance the performance of the ultrasonic receiver. It was proposed to use for this purpose AIREX T10.110 rigid polymer foam, the acoustic impedance of which is close to the optimal value necessary for matching with air. It was found that in order to get a wide bandwidth the length of the matching strip should be selected not a quarter wavelength lambda/4 at the antiresonance frequency but at lower frequency. It allowed achieving the frequency bandwidth (14-18)% with respect to the central frequency at -3 dB level. PMID- 29035349 TI - Design of Research on Performance of a New Iridium Coordination Compound for the Detection of Hg2. AB - Heavy metal pollution has become one of the most significant pollution problems encountered by our country in terms of environment protection. In addition to the significant effects of heavy metals on the human body and other organisms through water, food chain enrichment and other routes, heavy metals involved in daily necessities beyond the level limit could also affect people's lives, so the detection of heavy metals is extremely important. Ir (III) coordination compound, considered to be one of the best phosphorescent sensing materials, is characterized by high luminous efficiency, easy modification of the ligand and so on, and it has potential applications in the field of heavy metal detection. This project aims to product a new Ir (III) functional coordination compound by designing a new auxiliary ligand and a main ligand with a sulfur identification unit, in order to systematically investigate the application of iridium coordination compound in the detection of the heavy metal Hg2+. With the introduction of the sulfur identification unit, selective sensing of Hg2+ could be achieved. Additionally, a new auxiliary ligand is also introduced to produce a functional iridium coordination compound with high quantum efficiency, and to diversify the application of iridium coordination compound in this field. PMID- 29035346 TI - Redox Signaling and Its Impact on Skeletal and Vascular Responses to Spaceflight. AB - Spaceflight entails exposure to numerous environmental challenges with the potential to contribute to both musculoskeletal and vascular dysfunction. The purpose of this review is to describe current understanding of microgravity and radiation impacts on the mammalian skeleton and associated vasculature at the level of the whole organism. Recent experiments from spaceflight and ground-based models have provided fresh insights into how these environmental stresses influence mechanisms that are related to redox signaling, oxidative stress, and tissue dysfunction. Emerging mechanistic knowledge on cellular defenses to radiation and other environmental stressors, including microgravity, are useful for both screening and developing interventions against spaceflight-induced deficits in bone and vascular function. PMID- 29035350 TI - Asymmetric Dual-Band Tracking Technique for Optimal Joint Processing of BDS B1I and B1C Signals. AB - Along with the rapid development of the Global Navigation Satellite System (GNSS), satellite navigation signals have become more diversified, complex, and agile in adapting to increasing market demands. Various techniques have been developed for processing multiple navigation signals to achieve better performance in terms of accuracy, sensitivity, and robustness. This paper focuses on a technique for processing two signals with separate but adjacent center frequencies, such as B1I and B1C signals in the BeiDou global system. The two signals may differ in modulation scheme, power, and initial phase relation and can be processed independently by user receivers; however, the propagation delays of the two signals from a satellite are nearly identical as they are modulated on adjacent frequencies, share the same reference clock, and undergo nearly identical propagation paths to the receiver, resulting in strong coherence between the two signals. Joint processing of these signals can achieve optimal measurement performance due to the increased Gabor bandwidth and power. In this paper, we propose a universal scheme of asymmetric dual-band tracking (ASYM-DBT) to take advantage of the strong coherence, the increased Gabor bandwidth, and power of the two signals in achieving much-reduced thermal noise and more accurate ranging results when compared with the traditional single-band algorithm. PMID- 29035353 TI - Liquid metal-organic frameworks. AB - Metal-organic frameworks (MOFs) are a family of chemically diverse materials, with applications in a wide range of fields, covering engineering, physics, chemistry, biology and medicine. Until recently, research has focused almost entirely on crystalline structures, yet now a clear trend is emerging, shifting the emphasis onto disordered states, including 'defective by design' crystals, as well as amorphous phases such as glasses and gels. Here we introduce a strongly associated MOF liquid, obtained by melting a zeolitic imidazolate framework. We combine in situ variable temperature X-ray, ex situ neutron pair distribution function experiments, and first-principles molecular dynamics simulations to study the melting phenomenon and the nature of the liquid obtained. We demonstrate from structural, dynamical, and thermodynamical information that the chemical configuration, coordinative bonding, and porosity of the parent crystalline framework survive upon formation of the MOF liquid. PMID- 29035352 TI - Erratum: USP11 regulates PML stability to control Notch-induced malignancy in brain tumours. AB - This corrects the article DOI: 10.1038/ncomms4214. PMID- 29035354 TI - Liquid porous materials: Unveiling liquid MOFs. PMID- 29035351 TI - Rebalancing beta-Amyloid-Induced Decrease of ATP Level by Amorphous Nano/Micro Polyphosphate: Suppression of the Neurotoxic Effect of Amyloid beta-Protein Fragment 25-35. AB - Morbus Alzheimer neuropathology is characterized by an impaired energy homeostasis of brain tissue. We present an approach towards a potential therapy of Alzheimer disease based on the high-energy polymer inorganic polyphosphate (polyP), which physiologically occurs both in the extracellular and in the intracellular space. Rat pheochromocytoma (PC) 12 cells, as well as rat primary cortical neurons were exposed to the Alzheimer peptide Abeta25-35. They were incubated in vitro with polyphosphate (polyP); ortho-phosphate was used as a control. The polymer remained as Na+ salt; or complexed in a stoichiometric ratio to Ca2+ (Na-polyP[Ca2+]); or was processed as amorphous Ca-polyP microparticles (Ca-polyP-MP). Ortho-phosphate was fabricated as crystalline Ca-phosphate nanoparticles (Ca-phosphate-NP). We show that the pre-incubation of PC12 cells and primary cortical neurons with polyP protects the cells against the neurotoxic effect of the Alzheimer peptide Abeta25-35. The strongest effect was observed with amorphous polyP microparticles (Ca-polyP-MP). The effect of the soluble sodium salt; Na-polyP (Na-polyP[Ca2+]) was lower; while crystalline orthophosphate nanoparticles (Ca-phosphate-NP) were ineffective. Ca-polyP-MP microparticles and Na-polyP[Ca2+] were found to markedly enhance the intracellular ATP level. Pre-incubation of Abeta25-35 during aggregate formation, with the polyP preparation before exposure of the cells, had a small effect on neurotoxicity. We conclude that recovery of the compromised energy status in neuronal cells by administration of nontoxic biodegradable Ca-salts of polyP reverse the beta-amyloid-induced decrease of adenosine triphosphate (ATP) level. This study contributes to a new routes for a potential therapeutic intervention in Alzheimer's disease pathophysiology. PMID- 29035356 TI - Circulating tumour DNA methylation markers for diagnosis and prognosis of hepatocellular carcinoma. AB - An effective blood-based method for the diagnosis and prognosis of hepatocellular carcinoma (HCC) has not yet been developed. Circulating tumour DNA (ctDNA) carrying cancer-specific genetic and epigenetic aberrations may enable a noninvasive 'liquid biopsy' for diagnosis and monitoring of cancer. Here, we identified an HCC-specific methylation marker panel by comparing HCC tissue and normal blood leukocytes and showed that methylation profiles of HCC tumour DNA and matched plasma ctDNA are highly correlated. Using cfDNA samples from a large cohort of 1,098 HCC patients and 835 normal controls, we constructed a diagnostic prediction model that showed high diagnostic specificity and sensitivity (P < 0.001) and was highly correlated with tumour burden, treatment response, and stage. Additionally, we constructed a prognostic prediction model that effectively predicted prognosis and survival (P < 0.001). Together, these findings demonstrate in a large clinical cohort the utility of ctDNA methylation markers in the diagnosis, surveillance, and prognosis of HCC. PMID- 29035355 TI - Sequential bottom-up assembly of mechanically stabilized synthetic cells by microfluidics. AB - Compartments for the spatially and temporally controlled assembly of biological processes are essential towards cellular life. Synthetic mimics of cellular compartments based on lipid-based protocells lack the mechanical and chemical stability to allow their manipulation into a complex and fully functional synthetic cell. Here, we present a high-throughput microfluidic method to generate stable, defined sized liposomes termed 'droplet-stabilized giant unilamellar vesicles (dsGUVs)'. The enhanced stability of dsGUVs enables the sequential loading of these compartments with biomolecules, namely purified transmembrane and cytoskeleton proteins by microfluidic pico-injection technology. This constitutes an experimental demonstration of a successful bottom up assembly of a compartment with contents that would not self-assemble to full functionality when simply mixed together. Following assembly, the stabilizing oil phase and droplet shells are removed to release functional self-supporting protocells to an aqueous phase, enabling them to interact with physiologically relevant matrices. PMID- 29035357 TI - Continuous-wave infrared optical gain and amplified spontaneous emission at ultralow threshold by colloidal HgTe quantum dots. AB - Colloidal quantum dots (QDs) raise more and more interest as solution-processable and tunable optical gain materials. However, especially for infrared active QDs, optical gain remains inefficient. Since stimulated emission involves multifold degenerate band-edge states, population inversion can be attained only at high pump power and must compete with efficient multi-exciton recombination. Here, we show that mercury telluride (HgTe) QDs exhibit size-tunable stimulated emission throughout the near-infrared telecom window at thresholds unmatched by any QD studied before. We attribute this unique behaviour to surface-localized states in the bandgap that turn HgTe QDs into 4-level systems. The resulting long-lived population inversion induces amplified spontaneous emission under continuous-wave optical pumping at power levels compatible with solar irradiation and direct current electrical pumping. These results introduce an alternative approach for low-threshold QD-based gain media based on intentional trap states that paves the way for solution-processed infrared QD lasers and amplifiers. PMID- 29035358 TI - Topological defects govern crack front motion and facet formation on broken surfaces. AB - Cracks develop intricate patterns on the surfaces that they create. As faceted fracture surfaces are commonly formed by slow tensile cracks in both crystalline and amorphous materials, facet formation and structure cannot reflect microscopic order. Although fracture mechanics predict that slow crack fronts should be straight and form mirror-like surfaces, facet-forming fronts propagate simultaneously within different planes separated by steps. Here we show that these steps are topological defects of crack fronts and that crack front separation into disconnected overlapping segments provides the condition for step stability. Real-time imaging of propagating crack fronts combined with surface measurements shows that crack dynamics are governed by localized steps that drift at a constant angle to the local front propagation direction while their increased dissipation couples to long-ranged elasticity to determine front shapes. We study how three-dimensional topology couples to two-dimensional fracture dynamics to provide a fundamental picture of how patterned surfaces are generated. PMID- 29035359 TI - Acute myeloid leukaemia disrupts endogenous myelo-erythropoiesis by compromising the adipocyte bone marrow niche. AB - Acute myeloid leukaemia (AML) is distinguished by the generation of dysfunctional leukaemic blasts, and patients characteristically suffer from fatal infections and anaemia due to insufficient normal myelo-erythropoiesis. Direct physical crowding of bone marrow (BM) by accumulating leukaemic cells does not fully account for this haematopoietic failure. Here, analyses from AML patients were applied to both in vitro co-culture platforms and in vivo xenograft modelling, revealing that human AML disease specifically disrupts the adipocytic niche in BM. Leukaemic suppression of BM adipocytes led to imbalanced regulation of endogenous haematopoietic stem and progenitor cells, resulting in impaired myelo erythroid maturation. In vivo administration of PPARgamma agonists induced BM adipogenesis, which rescued healthy haematopoietic maturation while repressing leukaemic growth. Our study identifies a previously unappreciated axis between BM adipogenesis and normal myelo-erythroid maturation that is therapeutically accessible to improve symptoms of BM failure in AML via non-cell autonomous targeting of the niche. PMID- 29035360 TI - EZH2 promotes degradation of stalled replication forks by recruiting MUS81 through histone H3 trimethylation. AB - The emergence of resistance to poly-ADP-ribose polymerase inhibitors (PARPi) poses a threat to the treatment of BRCA1 and BRCA2 (BRCA1/2)-deficient tumours. Stabilization of stalled DNA replication forks is a recently identified PARPi resistance mechanism that promotes genomic stability in BRCA1/2-deficient cancers. Dissecting the molecular pathways controlling genomic stability at stalled forks is critical. Here we show that EZH2 localizes at stalled forks where it methylates Lys27 on histone 3 (H3K27me3), mediating recruitment of the MUS81 nuclease. Low EZH2 levels reduce H3K27 methylation, prevent MUS81 recruitment at stalled forks and cause fork stabilization. As a consequence, loss of function of the EZH2/MUS81 axis promotes PARPi resistance in BRCA2-deficient cells. Accordingly, low EZH2 or MUS81 expression levels predict chemoresistance and poor outcome in patients with BRCA2-mutated tumours. Moreover, inhibition of Ezh2 in a murine Brca2-/- breast tumour model is associated with acquired PARPi resistance. Our findings identify EZH2 as a critical regulator of genomic stability at stalled forks that couples histone modifications to nuclease recruitment. Our data identify EZH2 expression as a biomarker of BRCA2-deficient tumour response to chemotherapy. PMID- 29035361 TI - Continuous directed evolution of aminoacyl-tRNA synthetases. AB - Directed evolution of orthogonal aminoacyl-tRNA synthetases (AARSs) enables site specific installation of noncanonical amino acids (ncAAs) into proteins. Traditional evolution techniques typically produce AARSs with greatly reduced activity and selectivity compared to their wild-type counterparts. We designed phage-assisted continuous evolution (PACE) selections to rapidly produce highly active and selective orthogonal AARSs through hundreds of generations of evolution. PACE of a chimeric Methanosarcina spp. pyrrolysyl-tRNA synthetase (PylRS) improved its enzymatic efficiency (kcat/KMtRNA) 45-fold compared to the parent enzyme. Transplantation of the evolved mutations into other PylRS-derived synthetases improved yields of proteins containing noncanonical residues up to 9.7-fold. Simultaneous positive and negative selection PACE over 48 h greatly improved the selectivity of a promiscuous Methanocaldococcus jannaschii tyrosyl tRNA synthetase variant for site-specific incorporation of p-iodo-L phenylalanine. These findings offer new AARSs that increase the utility of orthogonal translation systems and establish the capability of PACE to efficiently evolve orthogonal AARSs with high activity and amino acid specificity. PMID- 29035362 TI - Changes in microtubule overlap length regulate kinesin-14-driven microtubule sliding. AB - Microtubule-crosslinking motor proteins, which slide antiparallel microtubules, are required for the remodeling of microtubule networks. Hitherto, all microtubule-crosslinking motors have been shown to slide microtubules at a constant velocity until no overlap remains between them, leading to the breakdown of the initial microtubule geometry. Here, we show in vitro that the sliding velocity of microtubules, driven by human kinesin-14 HSET, decreases when microtubules start to slide apart, resulting in the maintenance of finite-length microtubule overlaps. We quantitatively explain this feedback using the local interaction kinetics of HSET with overlapping microtubules that cause retention of HSET in shortening overlaps. Consequently, the increased HSET density in the overlaps leads to a density-dependent decrease in sliding velocity and the generation of an entropic force that antagonizes the force exerted by the motors. Our results demonstrate that a spatial arrangement of microtubules can regulate the collective action of molecular motors through the local alteration of their individual interaction kinetics. PMID- 29035363 TI - Crystal structures reveal an elusive functional domain of pyrrolysyl-tRNA synthetase. AB - Pyrrolysyl-tRNA synthetase (PylRS) is a major tool in genetic code expansion using noncanonical amino acids, yet its structure and function are not completely understood. Here we describe the crystal structure of the previously uncharacterized essential N-terminal domain of this unique enzyme in complex with tRNAPyl. This structure explains why PylRS remains orthogonal in a broad range of organisms, from bacteria to humans. The structure also illustrates why tRNAPyl recognition by PylRS is anticodon independent: the anticodon does not contact the enzyme. Then, using standard microbiological culture equipment, we established a new method for laboratory evolution-a noncontinuous counterpart of the previously developed phage-assisted continuous evolution. With this method, we evolved novel PylRS variants with enhanced activity and amino acid specificity. Finally, we employed an evolved PylRS variant to determine its N-terminal domain structure and show how its mutations improve PylRS activity in the genetic encoding of a noncanonical amino acid. PMID- 29035364 TI - Sympathetic neuron-associated macrophages contribute to obesity by importing and metabolizing norepinephrine. AB - The cellular mechanism(s) linking macrophages to norepinephrine (NE)-mediated regulation of thermogenesis have been a topic of debate. Here we identify sympathetic neuron-associated macrophages (SAMs) as a population of cells that mediate clearance of NE via expression of solute carrier family 6 member 2 (SLC6A2), an NE transporter, and monoamine oxidase A (MAOA), a degradation enzyme. Optogenetic activation of the sympathetic nervous system (SNS) upregulates NE uptake by SAMs and shifts the SAM profile to a more proinflammatory state. NE uptake by SAMs is prevented by genetic deletion of Slc6a2 or inhibition of the encoded transporter. We also observed an increased proportion of SAMs in the SNS of two mouse models of obesity. Genetic ablation of Slc6a2 in SAMs increases brown adipose tissue (BAT) content, causes browning of white fat, increases thermogenesis, and leads to substantial and sustained weight loss in obese mice. We further show that this pathway is conserved, as human sympathetic ganglia also contain SAMs expressing the analogous molecular machinery for NE clearance, which thus constitutes a potential target for obesity treatment. PMID- 29035365 TI - Omega-3 fatty acid epoxides are autocrine mediators that control the magnitude of IgE-mediated mast cell activation. AB - Critical to the function of mast cells in immune responses including allergy is their production of lipid mediators, among which only omega-6 (omega-6) arachidonate-derived eicosanoids have been well characterized. Here, by employing comprehensive lipidomics, we identify omega-3 (omega-3) fatty acid epoxides as new mast cell-derived lipid mediators and show that they are produced by PAF-AH2, an oxidized-phospholipid-selective phospholipase A2. Genetic or pharmacological deletion of PAF-AH2 reduced the steady-state production of omega-3 epoxides, leading to attenuated mast cell activation and anaphylaxis following FcERI cross linking. Mechanistically, the omega-3 epoxides promote IgE-mediated activation of mast cells by downregulating Srcin1, a Src-inhibitory protein that counteracts FcERI signaling, through a pathway involving PPARg. Thus, the PAF-AH2-omega-3 epoxide-Srcin1 axis presents new potential drug targets for allergic diseases. PMID- 29035366 TI - Cytoplasmic p53 couples oncogene-driven glucose metabolism to apoptosis and is a therapeutic target in glioblastoma. AB - Cross-talk among oncogenic signaling and metabolic pathways may create opportunities for new therapeutic strategies in cancer. Here we show that although acute inhibition of EGFR-driven glucose metabolism induces only minimal cell death, it lowers the apoptotic threshold in a subset of patient-derived glioblastoma (GBM) cells. Mechanistic studies revealed that after attenuated glucose consumption, Bcl-xL blocks cytoplasmic p53 from triggering intrinsic apoptosis. Consequently, targeting of EGFR-driven glucose metabolism in combination with pharmacological stabilization of p53 with the brain-penetrant small molecule idasanutlin resulted in synthetic lethality in orthotopic glioblastoma xenograft models. Notably, neither the degree of EGFR-signaling inhibition nor genetic analysis of EGFR was sufficient to predict sensitivity to this therapeutic combination. However, detection of rapid inhibitory effects on [18F]fluorodeoxyglucose uptake, assessed through noninvasive positron emission tomography, was an effective predictive biomarker of response in vivo. Together, these studies identify a crucial link among oncogene signaling, glucose metabolism, and cytoplasmic p53, which may potentially be exploited for combination therapy in GBM and possibly other malignancies. PMID- 29035369 TI - Epigenetic suppression of hippocampal calbindin-D28k by DeltaFosB drives seizure related cognitive deficits. AB - The calcium-binding protein calbindin-D28k is critical for hippocampal function and cognition, but its expression is markedly decreased in various neurological disorders associated with epileptiform activity and seizures. In Alzheimer's disease (AD) and epilepsy, both of which are accompanied by recurrent seizures, the severity of cognitive deficits reflects the degree of calbindin reduction in the hippocampal dentate gyrus (DG). However, despite the importance of calbindin in both neuronal physiology and pathology, the regulatory mechanisms that control its expression in the hippocampus are poorly understood. Here we report an epigenetic mechanism through which seizures chronically suppress hippocampal calbindin expression and impair cognition. We demonstrate that DeltaFosB, a highly stable transcription factor, is induced in the hippocampus in mouse models of AD and seizures, in which it binds and triggers histone deacetylation at the promoter of the calbindin gene (Calb1) and downregulates Calb1 transcription. Notably, increasing DG calbindin levels, either by direct virus-mediated expression or inhibition of DeltaFosB signaling, improves spatial memory in a mouse model of AD. Moreover, levels of DeltaFosB and calbindin expression are inversely related in the DG of individuals with temporal lobe epilepsy (TLE) or AD and correlate with performance on the Mini-Mental State Examination (MMSE). We propose that chronic suppression of calbindin by DeltaFosB is one mechanism through which intermittent seizures drive persistent cognitive deficits in conditions accompanied by recurrent seizures. PMID- 29035367 TI - Targeting glioma stem cells through combined BMI1 and EZH2 inhibition. AB - Glioblastomas are lethal cancers defined by angiogenesis and pseudopalisading necrosis. Here, we demonstrate that these histological features are associated with distinct transcriptional programs, with vascular regions showing a proneural profile, and hypoxic regions showing a mesenchymal pattern. As these regions harbor glioma stem cells (GSCs), we investigated the epigenetic regulation of these two niches. Proneural, perivascular GSCs activated EZH2, whereas mesenchymal GSCs in hypoxic regions expressed BMI1 protein, which promoted cellular survival under stress due to downregulation of the E3 ligase RNF144A. Using both genetic and pharmacologic inhibition, we found that proneural GSCs are preferentially sensitive to EZH2 disruption, whereas mesenchymal GSCs are more sensitive to BMI1 inhibition. Given that glioblastomas contain both proneural and mesenchymal GSCs, combined EZH2 and BMI1 targeting proved more effective than either agent alone both in culture and in vivo, suggesting that strategies that simultaneously target multiple epigenetic regulators within glioblastomas may be effective in overcoming therapy resistance caused by intratumoral heterogeneity. PMID- 29035368 TI - Activation of intestinal hypoxia-inducible factor 2alpha during obesity contributes to hepatic steatosis. AB - Nonalcoholic fatty liver disease is becoming the most common chronic liver disease in Western countries, and limited therapeutic options are available. Here we uncovered a role for intestinal hypoxia-inducible factor (HIF) in hepatic steatosis. Human-intestine biopsies from individuals with or without obesity revealed that intestinal HIF-2alpha signaling was positively correlated with body mass index and hepatic toxicity. The causality of this correlation was verified in mice with an intestine-specific disruption of Hif2a, in which high-fat-diet induced hepatic steatosis and obesity were substantially lower as compared to control mice. PT2385, a HIF-2alpha-specific inhibitor, had preventive and therapeutic effects on metabolic disorders that were dependent on intestine HIF 2alpha. Intestine HIF-2alpha inhibition markedly reduced intestine and serum ceramide levels. Mechanistically, intestine HIF-2alpha regulates ceramide metabolism mainly from the salvage pathway, by positively regulating the expression of Neu3, the gene encoding neuraminidase 3. These results suggest that intestinal HIF-2alpha could be a viable target for hepatic steatosis therapy. PMID- 29035370 TI - Natural killer cells migrate into and control simian immunodeficiency virus replication in lymph node follicles in African green monkeys. AB - Natural killer (NK) cells play an essential role in antiviral immunity, but knowledge of their function in secondary lymphoid organs is incomplete. Lymph node follicles constitute a major viral reservoir during infections with HIV-1 and simian immunodeficiency virus of macaques (SIVmac). In contrast, during nonpathogenic infection with SIV from African green monkeys (SIVagm), follicles remain generally virus free. We show that NK cells in secondary lymphoid organs from chronically SIVagm-infected African green monkeys (AGMs) were frequently CXCR5+ and entered and persisted in lymph node follicles throughout the follow-up (240 d post-infection). These follicles were strongly positive for IL-15, which was primarily presented in its membrane-bound form by follicular dendritic cells. NK cell depletion through treatment with anti-IL-15 monoclonal antibody during chronic SIVagm infection resulted in high viral replication rates in follicles and the T cell zone and increased viral DNA in lymph nodes. Our data suggest that, in nonpathogenic SIV infection, NK cells migrate into follicles and play a major role in viral reservoir control in lymph nodes. PMID- 29035372 TI - MMseqs2 enables sensitive protein sequence searching for the analysis of massive data sets. PMID- 29035371 TI - lncRNA MIR100HG-derived miR-100 and miR-125b mediate cetuximab resistance via Wnt/beta-catenin signaling. AB - De novo and acquired resistance, which are largely attributed to genetic alterations, are barriers to effective anti-epidermal-growth-factor-receptor (EGFR) therapy. To generate cetuximab-resistant cells, we exposed cetuximab sensitive colorectal cancer cells to cetuximab in three-dimensional culture. Using whole-exome sequencing and transcriptional profiling, we found that the long non-coding RNA MIR100HG and two embedded microRNAs, miR-100 and miR-125b, were overexpressed in the absence of known genetic events linked to cetuximab resistance. MIR100HG, miR-100 and miR-125b overexpression was also observed in cetuximab-resistant colorectal cancer and head and neck squamous cell cancer cell lines and in tumors from colorectal cancer patients that progressed on cetuximab. miR-100 and miR-125b coordinately repressed five Wnt/beta-catenin negative regulators, resulting in increased Wnt signaling, and Wnt inhibition in cetuximab resistant cells restored cetuximab responsiveness. Our results describe a double negative feedback loop between MIR100HG and the transcription factor GATA6, whereby GATA6 represses MIR100HG, but this repression is relieved by miR-125b targeting of GATA6. These findings identify a clinically actionable, epigenetic cause of cetuximab resistance. PMID- 29035373 TI - Molecular afterglow imaging with bright, biodegradable polymer nanoparticles. AB - Afterglow optical agents, which emit light long after cessation of excitation, hold promise for ultrasensitive in vivo imaging because they eliminate tissue autofluorescence. However, afterglow imaging has been limited by its reliance on inorganic nanoparticles with relatively low brightness and short-near-infrared (NIR) emission. Here we present semiconducting polymer nanoparticles (SPNs) <40 nm in diameter that store photon energy via chemical defects and emit long-NIR afterglow luminescence at 780 nm with a half-life of ~6 min. In vivo, the afterglow intensity of SPNs is more than 100-fold brighter than that of inorganic afterglow agents, and the signal is detectable through the body of a live mouse. High-contrast lymph node and tumor imaging in living mice is demonstrated with a signal-to-background ratio up to 127-times higher than that obtained by NIR fluorescence imaging. Moreover, we developed an afterglow probe, activated only in the presence of biothiols, for early detection of drug-induced hepatotoxicity in living mice. PMID- 29035374 TI - Design of coiled-coil protein-origami cages that self-assemble in vitro and in vivo. AB - Polypeptides and polynucleotides are natural programmable biopolymers that can self-assemble into complex tertiary structures. We describe a system analogous to designed DNA nanostructures in which protein coiled-coil (CC) dimers serve as building blocks for modular de novo design of polyhedral protein cages that efficiently self-assemble in vitro and in vivo. We produced and characterized >20 single-chain protein cages in three shapes-tetrahedron, four-sided pyramid, and triangular prism-with the largest containing >700 amino-acid residues and measuring 11 nm in diameter. Their stability and folding kinetics were similar to those of natural proteins. Solution small-angle X-ray scattering (SAXS), electron microscopy (EM), and biophysical analysis confirmed agreement of the expressed structures with the designs. We also demonstrated self-assembly of a tetrahedral structure in bacteria, mammalian cells, and mice without evidence of inflammation. A semi-automated computational design platform and a toolbox of CC building modules are provided to enable the design of protein cages in any polyhedral shape. PMID- 29035375 TI - Upregulation of the actin cytoskeleton via myocardin leads to increased expression of type 1 collagen. AB - Liver fibrosis, a model wound healing system, is characterized by excessive deposition of extracellular matrix (ECM) in the liver. Although many fibrogenic cell types may express ECM, the hepatic stellate cell (HSC) is currently considered to be the major effector. HSCs transform into myofibroblast-like cells, also known as hepatic myofibroblasts in a process known as activation; this process is characterized in particular by de novo expression of smooth muscle alpha actin (SM alpha-actin) and type 1 collagen. The family of actins, which form the cell's cytoskeleton, are essential in many cellular processes. beta-actin and cytoplasmic gamma-actin (gamma-actin) are ubiquitously expressed, whereas SM alpha-actin defines smooth muscle cell and myofibroblast phenotypes. Thus, SM alpha-actin is tightly associated with multiple functional properties. However, the regulatory mechanisms by which actin isoforms might regulate type 1 collagen remain unclear. In primary HSCs from normal and fibrotic rat liver, we demonstrate that myocardin, a canonical SRF cofactor, is upregulated in hepatic myofibroblasts and differentially regulates SM alpha-actin, gamma-actin, and beta actins through activation of an ATTA box in the SM alpha-actin and a CCAAT box in gamma-actin and beta-actin promoters, respectively; moreover, myocardin differentially activated serum response factor (SRF) in CArG boxes of actin promoters. In addition, myocardin-stimulated Smad2 phosphorylation and RhoA expression, leading to increased expression of type 1 collagen in an actin cytoskeleton-dependent manner. Myocardin also directly enhanced SRF expression and stimulated collagen 1alpha1 and 1alpha2 promoter activities. In addition, overexpression of myocardin in vivo during carbon tetrachloride-induced liver injury led to increased HSC activation and fibrogenesis. In summary, our data suggest that myocardin plays a critical role in actin cytoskeletal dynamics during HSC activation, in turn, specifically regulating type I collagen expression in hepatic myofibroblasts. PMID- 29035377 TI - NME4/nucleoside diphosphate kinase D in cardiolipin signaling and mitophagy. AB - Mitophagy is an emerging paradigm for mitochondrial quality control and cell homeostasis. Dysregulation of mitophagy can lead to human pathologies such as neurodegenerative disorders and contributes to the aging process. Complex protein signaling cascades have been described that regulate mitophagy. We have identified a novel lipid signaling pathway that involves the phospholipid cardiolipin (CL). CL is synthesized and normally confined at the inner mitochondrial membrane. However, upon a mitophagic trigger, ie, collapse of the inner membrane potential, CL is rapidly externalized to the mitochondrial surface with the assistance of the hexameric nucleoside diphosphate kinase D (NME4, NDPK D, or NM23-H4). In addition to its NDP kinase activity, NME4/NDPK-D shows intermembrane phospholipid transfer activity in vitro and in cellular systems, which relies on NME4/NDPK-D interaction with CL, CL-dependent crosslinking of inner and outer mitochondrial membranes by symmetrical, hexameric NME4/NDPK-D, and a putative NME4/NDPK-D-based CL-transfer pathway. CL exposed at the mitochondrial surface then serves as an 'eat me' signal for the mitophagic machinery; it is recognized by the LC3 receptor of autophagosomes, targeting the dysfunctional mitochondrion to lysosomal degradation. Similar NME4-supported CL externalization is likely also involved in apoptosis and inflammatory reactions. PMID- 29035376 TI - Oncogenic Epstein-Barr virus recruits Nm23-H1 to regulate chromatin modifiers. AB - In cancer progression, metastasis is a major cause of poor survival of patients and can be targeted for therapeutic interventions. The first discovered metastatic-suppressor Nm23-H1 possesses nucleoside diphosphate kinase, histidine kinase, and DNase activity as a broad-spectrum enzyme. Recent advances in cancer metastasis have opened new ways for the development of therapeutic molecular approaches. In this review, we provide a summary of the current understanding of Nm23/NDPKs in the context of viral oncogenesis. We also focused on Nm23-H1 mediated cellular events with an emphasis on chromatin modifications. How Nm23-H1 modulates the activities of chromatin modifiers through interaction with Epstein Barr virus-encoded oncogenic antigens and related crosstalks are discussed in the context of other oncogenic viruses. We also described the current understanding of the cellular and viral interactions of Nm23-H1 and their reference to transcription regulation and metastasis. Further, we summarized the recent therapeutic approaches targeting Nm23 and its potential links to pathways that can be exploited by oncogenic viruses. PMID- 29035378 TI - Molecular similarities and differences from human pulmonary fibrosis and corresponding mouse model: MALDI imaging mass spectrometry in comparative medicine. AB - Animal models can reproduce some model-specific aspects of human diseases, but some animal models translate poorly or fail to translate to the corresponding human disease. Here, we develop a strategy to systematically compare human and mouse tissues, and conduct a proof-of-concept experiment to identify molecular similarities and differences using patients with idiopathic pulmonary fibrosis and a bleomycin-induced fibrosis mouse model. Our novel approach employs high throughput tissue microarrays (TMAs) of humans and mice, high-resolution matrix assisted laser desorption/ionization-Fourier transform-ion cyclotron resonance mass spectrometry imaging (MALDI-FT-ICR-MSI) to spatially resolve mass spectra at the level of specific metabolites, and hierarchical clustering and pathway enrichment analysis to identify functionally similar/different molecular patterns and pathways in pathological lesions of humans and mice. We identified a large number of common molecules (n=1366) and fewer exclusive molecules in humans (n=83) and mice (n=54). Among the common molecules, the 'ascorbate and aldarate metabolism' pathway had the highest similarity in human and mouse lesions. This proof-of-concept study demonstrates that our novel strategy employing a reliable and easy-to-perform experimental design accurately identifies pathways and factors that can be directly compared between animal models and human diseases. PMID- 29035379 TI - Lobular carcinoma in situ and invasive lobular breast cancer are characterized by enhanced expression of transcription factor AP-2beta. AB - Transcription factor AP-2beta (TFAP2B) regulates embryonic organ development and is overexpressed in alveolar rhabdomyosarcoma, a rare childhood malignancy. Gene expression profiling has implicated AP-2beta in breast cancer (BC). This study characterizes AP-2beta expression in the mammary gland and in BC. AP-2beta protein expression was assessed in the normal mammary gland epithelium, in various reactive, metaplastic and pre-invasive neoplastic lesions and in two clinical BC cohorts comprising >2000 patients. BCs from various genetically engineered mouse (GEM) models were also evaluated. Human BC cell lines served as functional models to study siRNA-mediated inhibition of AP-2beta. The normal mammary gland epithelium showed scattered AP-2beta-positive cells in the luminal cell layer. Various reactive and pre-invasive neoplastic lesions, including apocrine metaplasia, usual ductal hyperplasia and lobular carcinoma in situ (LCIS) showed enhanced AP-2beta expression. Cases of ductal carcinoma in situ (DCIS) were more often AP-2beta-negative (P<0.001). In invasive BC cohorts, AP 2beta-positivity was associated with the lobular BC subtype (P<0.001), loss of E cadherin (P<0.001), a positive estrogen receptor (ER) status (P<0.001), low Ki67 (P<0.001), low/intermediate Oncotype DX recurrence scores (P<0.001), and prolonged event-free survival (P=0.003). BCs from GEM models were all AP-2beta negative. In human BC cell lines, AP-2beta expression was independent from ER signaling. SiRNA-mediated inhibition of AP-2beta diminished proliferation of lobular BC cell lines in vitro. In summary, AP-2beta is a new mammary epithelial differentiation marker. Its expression is preferentially retained and enhanced in LCIS and invasive lobular BC and has prognostic implications. Our findings indicate that AP-2beta controls tumor cell proliferation in this slow-growing BC subtype. PMID- 29035380 TI - Mixed cell therapy of bone marrow-derived mesenchymal stem cells and articular cartilage chondrocytes ameliorates osteoarthritis development. AB - Of the many cell-based treatments that have been tested in an effort to regenerate osteoarthritic articular cartilage, none have ever produced cartilage that compare with native hyaline cartilage. Studies show that different cell types lead to inconsistent results and for cartilage regeneration to be considered successful, there must be an absence of fibrotic tissue. Here we report of a series of experiments in which bone marrow-derived stem cells (BMSCs) and articular cartilage chondrocytes (ACCs) were mixed in a 1:1 ratio and tested for their ability to enhance cartilage regeneration in three different conditions: (1) in an in vitro differentiation model; (2) in an ex vivo cartilage defect model implanted subcutaneously in mice; and (3) as an intra-articular injection in a meniscectomy-induced OA model in rats. The mixed cells were compared with monocultures of BMSCs and ACCs. In all three experimental models there was significantly enhanced cartilage regeneration and decreased fibrosis in the mixed BMSCs+ACCs group compared with the monocultures. Molecular analysis showed a reduction in vascularization and hypertrophy, coupled with higher chondrogenic gene expression resulting from the BMSCs+ACCs treatment. Together, our data suggest that mixed BMSCs+ACCs treatment is highly chondro-protective and is more effective in regenerating damaged cartilage in both the ex vivo cartilage defect and post-trauma OA disease models. The results from this approach could potentially be used for regeneration of cartilage in OA patients. PMID- 29035381 TI - High expression of HOXA13 correlates with poorly differentiated hepatocellular carcinomas and modulates sorafenib response in in vitro models. AB - Hepatocellular carcinoma (HCC) represents the fifth and ninth cause of mortality among male and female cancer patients, respectively and typically arises on a background of a cirrhotic liver. HCC develops in a multi-step process, often encompassing chronic liver injury, steatosis and cirrhosis eventually leading to the malignant transformation of hepatocytes. Aberrant expression of the class I homeobox gene family (HOX), a group of genes crucial in embryogenesis, has been reported in a variety of malignancies including solid tumors. Among HOX genes, HOXA13 is most overexpressed in HCC and is known to be directly regulated by the long non-coding RNA HOTTIP. In this study, taking advantage of a tissue microarray containing 305 tissue specimens, we found that HOXA13 protein expression increased monotonically from normal liver to cirrhotic liver to HCC and that HOXA13-positive HCCs were preferentially poorly differentiated and had fewer E-cadherin-positive cells. In two independent cohorts, patients with HOXA13 positive HCC had worse overall survival than those with HOXA13-negative HCC. Using HOXA13 immunohistochemistry and HOTTIP RNA in situ hybridization on consecutive sections of 16 resected HCCs, we demonstrated that HOXA13 and HOTTIP were expressed in the same neoplastic hepatocyte populations. Stable overexpression of HOXA13 in liver cancer cell lines resulted in increased colony formation on soft agar and migration potential as well as reduced sensitivity to sorafenib in vitro. Our results provide compelling evidence of a role for HOXA13 in HCC development and highlight for the first time its ability to modulate response to sorafenib. PMID- 29035382 TI - Regulation of heterotrimeric G-protein signaling by NDPK/NME proteins and caveolins: an update. AB - Heterotrimeric G proteins are pivotal mediators of cellular signal transduction in eukaryotic cells and abnormal G-protein signaling plays an important role in numerous diseases. During the last two decades it has become evident that the activation status of heterotrimeric G proteins is both highly localized and strongly regulated by a number of factors, including a receptor-independent activation pathway of heterotrimeric G proteins that does not involve the classical GDP/GTP exchange and relies on nucleoside diphosphate kinases (NDPKs). NDPKs are NTP/NDP transphosphorylases encoded by the nme/nm23 genes that are involved in a variety of cellular events such as proliferation, migration, and apoptosis. They therefore contribute, for example, to tumor metastasis, angiogenesis, retinopathy, and heart failure. Interestingly, NDPKs are translocated and/or upregulated in human heart failure. Here we describe recent advances in the current understanding of NDPK functions and how they have an impact on local regulation of G-protein signaling. PMID- 29035383 TI - Extracellular NME proteins: a player or a bystander? AB - The Nm23/NME gene family has been under intensive study since Nm23H1/NME1 was identified as the first metastasis suppressor. Inverse correlation between the expression levels of NME1/2 and prognosis has indeed been demonstrated in different tumor cohorts. Interestingly, the presence of NME proteins in the extracellular environment in normal and tumoral conditions has also been noted. In many reported cases, however, these extracellular NME proteins exhibit anti differentiation or oncogenic functions, contradicting their canonical anti metastatic action. This emerging field thus warrants further investigation. In this review, we summarize the current understanding of extracellular NME proteins. A role in promoting stem cell pluripotency and inducing development of central nervous system as well as a neuroprotective function of extracellular NME have been suggested. Moreover, a tumor-promoting function of extracellular NME also emerged at least in some tumor cohorts. In this complex scenario, the secretory mechanism through which NME proteins exit cells is far from being understood. Recently, some evidence obtained in the Drosophila and cancer cell line models points to the involvement of Dynamin in controlling the balance between intra- and extracellular levels of NME. Further analyses on extracellular NME will lead to a better understanding of its physiological function and in turn will allow understanding of how its deregulation contributes to carcinogenesis. PMID- 29035384 TI - Effect of anthelmintic treatment on leptin, adiponectin and leptin to adiponectin ratio: a randomized-controlled trial. AB - Emerging evidence suggests that helminths might confer protection against the development of type 2 diabetes. We aimed to assess the role of adipokines in mediating the effect of helminths on insulin resistance. Serum samples were obtained from a randomized-controlled trial of anthelmintic treatment in an area endemic for soil-transmitted helminths (STH), Flores Island, Indonesia. In STH infected subjects, anthelmintic treatment significantly increased the ratio of leptin to adiponectin (treatment effect factor (95% confidence interval (CI)), P value for interaction: 1.20 (1.06-1.35), P=0.010), which largely stemmed from a significant reduction in adiponectin (0.91 (0.85-0.98), P=0.020) and a trend for an increase in leptin level (1.10 (1.00-1.21), P=0.119). No significant effect on resistin level was observed. This increase in leptin to adiponectin ratio seemed to contribute to the observed effect of deworming on increased insulin resistance (IR) as adjustment for leptin to adiponectin ratio attenuated the effect on IR from 1.07 (1.01-1.14, P=0.023) to 1.05 (0.99-1.11, P=0.075). Anthelmintic treatment in STH-infected subjects increases leptin to adiponectin ratio which may in small part contribute to the modest increase in IR. Further studies will be needed to assess the effect of the changes in adipokine levels on the host immune response and metabolism. PMID- 29035386 TI - The importance of being earnest in post-publication review: scientific fraud and the scourges of anonymity and excuses. PMID- 29035385 TI - Class 2 CRISPR-Cas RNA-guided endonucleases: Swiss Army knives of genome editing. AB - CRISPR-Cas is a bacterial defense system against phage infection and nucleic acid invasion. Class 2 type II CRISPR-Cas9 has also been widely used for genome engineering. Here, we review novel insights into the CRISPR class 2 type V enzymes, specifically Cpf1 and C2c1, which display different DNA-recognition and cleavage characteristics than those of Cas9, the best-characterized member of class 2. Recent structures of these ribonucleoprotein complexes that capture several stages of the endonuclease reaction have provided molecular details of recognition, unzipping and cleavage of the target DNA, allowing their comparison with Cas9. A detailed understanding of these mechanisms is crucial for improving these genome engineering tools and expanding the genomic space that can be targeted. PMID- 29035387 TI - Stromal PTEN inhibits the expansion of mammary epithelial stem cells through Jagged-1. AB - This corrects the article DOI: 10.1038/onc.2016.383. PMID- 29035388 TI - A novel HER2 gene body enhancer contributes to HER2 expression. AB - The transcriptional regulation of the human epidermal growth factor receptor-2 (HER2) contributes to an enhanced HER2 expression in HER2-positive breast cancers with HER2 gene amplification and HER2-low or HER2-negative breast cancers following radiotherapy or endocrine therapy, and this drives tumorigenesis and the resistance to therapy. Epigenetic mechanisms are critical for transcription regulation, however, such mechanisms in the transcription regulation of HER2 are limited to the involvement of tri-methylated histone 3 lysine 4 (H3K4me3) and acetylated histone 3 lysine 9 (H3K9ac) at the HER2 promoter region. Here, we report the identification of a novel enhancer in the HER2 3' gene body, which we have termed HER2 gene body enhancer (HGE). The HGE starts from the 3' end of intron 19 and extends into intron 22, possesses enhancer histone modification marks in specific cells and enhances the transcriptional activity of the HER2 promoters. We also found that TFAP2C, a known regulator of HER2, binds to HGE and is required for its enhancer function and that DNA methylation in the HGE region inhibits the histone modifications characterizing enhancer and is inversely correlated with HER2 expression in breast cancer samples. The identification of this novel enhancer sheds a light on the roles of epigenetic mechanisms in HER2 transcription, in both HER2-positive breast cancer samples and individuals with HER2-low or HER2-negative breast cancers undergoing radiotherapy or endocrine therapy. PMID- 29035389 TI - 'MCC' protein interacts with E-cadherin and beta-catenin strengthening cell-cell adhesion of HCT116 colon cancer cells. AB - E-cadherin and beta-catenin are key proteins that are essential in the formation of the epithelial cell layer in the colon but their regulatory pathways that are disrupted in cancer metastasis are not completely understood. Mutated in colorectal cancer (MCC) is a tumour suppressor gene that is silenced by promoter methylation in colorectal cancer and particularly in patients with increased lymph node metastasis. Here, we show that MCC methylation is found in 45% of colon and 24% of rectal cancers and is associated with proximal colon, poorly differentiated, circumferential and mucinous tumours as well as increasing T stage and larger tumour size. Knockdown of MCC in HCT116 colon cancer cells caused a reduction in E-cadherin protein level, which is a hallmark of epithelial mesenchymal transition in cancer, and consequently diminished the E-cadherin/beta catenin complex. MCC knockdown disrupted cell-cell adhesive strength and integrity in the dispase and transepithelial electrical resistance assays, enhanced hepatocyte growth factor-induced cell scatter and increased tumour cell invasiveness in an organotypic assay. The Src/Abl inhibitor dasatinib, a candidate anti-invasive drug, abrogated the invasive properties induced by MCC deficiency. Mechanistically, we establish that MCC interacts with the E cadherin/beta-catenin complex. These data provide a significant advance in the current understanding of cell-cell adhesion in colon cancer cells. PMID- 29035390 TI - Epigenetic silencing of the dual-role signal mediator, ANGPTL4 in tumor tissues and its overexpression in the urothelial carcinoma microenvironment. AB - Urothelial carcinoma (UC) carcinogenesis has been hypothesized to occur through epigenetic repression of tumor-suppressor genes (TSGs). By quantitative real-time polymerase chain reaction array, we found that one potential TSG, angiopoietin like 4 (ANGPTL4), was expressed at very low levels in all bladder cancer cell lines we examined. Previous studies had demonstrated that ANGPTL4 is highly expressed in some cancers, but downregulated, by DNA methylation, in others. Consequently, owing to these seemingly conflicting functions in distinct cancers, the precise role of ANGPTL4 in the etiology of UC remains unclear. In this study, using methylation-specific PCR and bisulfite pyrosequencing, we show that ANGPTL4 is transcriptionally repressed by DNA methylation in UC cell lines and primary tumor samples, as compared with adjacent noncancerous bladder epithelium. Functional studies further demonstrated that ectopic expression of ANGPTL4 potently suppressed UC cell proliferation, monolayer colony formation in vitro, and invasion, migration, and xenograft formation in vivo. Surprisingly, circulating ANGPTL4 was significantly higher in plasma samples from UC patients than normal control, suggesting it might be secreted from other cell types. Interestingly, our data also indicated that exogenous cANGPTL4 could promote cell proliferation and cell migration via activation of signaling through the Erk/focal adhesion kinase axis. We further confirmed that mouse xenograft tumor growth could be promoted by administration of exogenous cANGPTL4. Finally, immunohistochemistry demonstrated that ANGPTL4 was downregulated in tumor cells but overexpressed in tumor adjacent stromal tissues of muscle-invasive UC tissue samples. In conclusion, our data support dual roles for ANGPTL4 in UC progression, either as a tumor suppressor or oncogene, in response to microenvironmental context. PMID- 29035392 TI - Long-term outcome of mixed chimerism after stem cell transplantation for thalassemia major conditioned with busulfan and cyclophosphamide. AB - Mixed chimerism (MC) occurs frequently after allogeneic hematopoietic stem cell transplantation (HSCT) for thalassemia major (TM) and may be associated with rejection. We report the outcome of MC in 132 TM patients conditioned with Busulphan/Cyclophosphamide, who had successful engraftment and had ?1 year follow up. Chimerism was first assessed at day +28, then every 3-9 months or more frequently if there was MC. If rejection was suspected, immunosuppression was stopped and donor-lymphocyte infusion (DLI) was given if there was no response. Among 132 patients, aged 7 years (range: 2-24), 46/132 (34.8%) had MC in the first year, 32/46 (69.6%) at day +28 and another 14 (30%) between day +28 and 1 year post HSCT. MC was quantified at level 1 (residual host chimerism (RHC) <10%) in 20 (43.5%), level II (RHC 10-25%) in 14 (30.4%) and level III (RHC >25%) in 12 (26.1%). On tapering immunosuppression, 15 (32.6%) developed acute GvHD and 8 (17.4%) had chronic GvHD with reversal to complete chimerism (CC). DLI was administered to 5/46 (10.9%), 1 evolved to CC but 4 rejected the graft. At median follow-up of 60 months (range: 16-172), 20/46 (43.5%) had CC, 18/46 (39.1%) had persistent MC with hemoglobin of 11.5 g/dL (range: 8.4-13.6), whereas 8 (17.4%) rejected the graft. Close monitoring and early intervention is needed with increasing recipient chimerism. Novel strategies are required for preventing graft rejection. PMID- 29035391 TI - A gammaherpesvirus provides protection against allergic asthma by inducing the replacement of resident alveolar macrophages with regulatory monocytes. AB - The hygiene hypothesis postulates that the recent increase in allergic diseases such as asthma and hay fever observed in Western countries is linked to reduced exposure to childhood infections. Here we investigated how infection with a gammaherpesvirus affected the subsequent development of allergic asthma. We found that murid herpesvirus 4 (MuHV-4) inhibited the development of house dust mite (HDM)-induced experimental asthma by modulating lung innate immune cells. Specifically, infection with MuHV-4 caused the replacement of resident alveolar macrophages (AMs) by monocytes with regulatory functions. Monocyte-derived AMs blocked the ability of dendritic cells to trigger a HDM-specific response by the TH2 subset of helper T cells. Our results indicate that replacement of embryonic AMs by regulatory monocytes is a major mechanism underlying the long-term training of lung immunity after infection. PMID- 29035393 TI - Donor-lymphocyte infusion following haploidentical hematopoietic cell transplantation with peripheral blood stem cell grafts and PTCy. AB - Donor-lymphocyte infusion (DLI) for relapse following haploidentical hematopoietic cell transplantation (haploHCT) with post-transplant cyclophosphamide (PTCy) has been described in recipients of bone marrow grafts, but not recipients of G-CSF mobilized peripheral blood (PB) grafts. We retrospectively identified patients who underwent DLI following PB-haploHCT with PTCy for relapse, or loss of chimerism (LOC). Twelve patients (57%) received DLI for hematologic relapse/persistent disease, seven (33%) for extramedullary relapse and two (10%) for LOC. Sixteen (76%) received chemotherapy prior to DLI, which did not correlate with response. The most common first dose was 1 * 106 CD3+ cells/kg. Two patients developed grade I aGvHD post DLI, one had grade II and two had grade III. One developed mild skin cGvHD 1361 days post DLI. Pre-DLI aGvHD predicted post-DLI aGvHD (P=0.025). Six patients achieved CR after DLI for overt relapse, one achieved full donor chimerism after LOC. Patients with LOC or EM relapse had superior relapse-free survival following DLI (P=0.029). DLI following PB-haploHCT with PTCy is a viable salvage therapy for overt relapse or LOC without a substantial increase in GvHD, and donor lymphocytes may be collected simultaneously with graft collection to facilitate availability in patients at high risk of relapse. PMID- 29035396 TI - Successful correction of familial hemophagocytic lymphohistiocytosis using prenatal genetic testing and preemptive hematopoietic stem cell transplantation. PMID- 29035395 TI - Replacing carmustine by thiotepa and cyclophosphamide for autologous stem cell transplantation in Hodgkin's and non-Hodgkin's B-cell lymphoma. AB - This study aimed to compare the real-life results of TECAM, a thiotepa-based conditioning regimen consisting of thiotepa (40 mg/m2 days -5 to -2), etoposide (200 mg/m2 days -6 to -3), cytarabine (200 mg/m2 days -4 to -1), cyclophosphamide (60 mg/kg day -3), and melphalan (60 mg/m2 days -2 to -1) with that of the conventional carmustine-based regimen BEAM. We reviewed 125 consecutive patients who underwent a first autologous transplantation (ASCT) for B-cell lymphomas at a large tertiary transplantation center between 1999 and 2014. TECAM (n=65) and BEAM (n=60) had comparable results (3yPFS 49 vs 62%, P=0.16; 3yOS 64 vs 71%, P=0.44; TRM 1.6 vs 5%, P=0.35) without a difference in toxicity or time to engraftment. Notably, comparable outcomes were observed even though patients treated with TECAM were older (55 vs 44) and had a trend towards more prior lines of therapy (>2 prior lines: 43 vs 27%, P=0.08). In this regard, 23% of TECAM patients were over the age of 65 yet could withstand therapy with similar results to younger patients. We conclude that, replacing carmustine by thiotepa and cyclophosphamide for ASCT conditioning, has comparable efficacy and safety profiles with a possible advantage in older patients. PMID- 29035397 TI - Engender trust and edify. PMID- 29035394 TI - Infusion of autograft natural killer cell/CD14+HLA-DRDIM cell ratio predicts survival in lymphoma post autologous stem cell transplantation. AB - The infusion of autograft absolute lymphocyte count (A-ALC) and autograft natural killer cells (A-NKC) are prognostic factors for overall survival (OS) and PFS in non-Hodgkin's lymphoma (NHL) patients undergoing autologous peripheral blood hematopoietic stem cell transplantation (APBHSCT). The human monocytic CD14+HLA DRDIM cells are associated with worse prognosis in NHL. Thus, we investigated whether the autograft A-NKC/A-CD14+HLA-DRDIM ratio predicts survival in NHL. In a total of 111 NHL patients, we analyzed apheresis collection samples for the content of A-NKC and A-CD14+HLA-DRDIM. With a median follow-up of 57.2 months (range: 2.1-84.6 months), patients with an A-NKC/A-CD14+HLA-DRDIM ratio of ?0.29 experienced superior OS (5-year OS rates of 84% (95% confidence interval (CI), 72 91%) vs 48% (95% CI, 34-62%), P<0.0002, respectively) and PFS (5-year PFS rates of 59% (95% CI, 47-71%) vs 32% (95% CI, 20-48%), P<0.002, respectively). Multivariate analysis revealed that A-NKC/A-CD14+HLA-DRDIM ratio was an independent predictor for PFS (hazard ratio (HR)=0.56, 95% CI, 0.32-0.96, P<0.03) and OS (HR=0.34, 95% CI, 0.16-0.68, P<0.002). The A-NKC/A-CD14+HLA-DRDIM ratio provides a platform to target specific autograft immune effector cells to improve clinical outcomes in NHL patients undergoing APBHSCT. PMID- 29035398 TI - Risks factors and timing of genital human papillomavirus (HPV) infection in female stem cell transplant survivors: a longitudinal study. AB - This longitudinal single-center study describes the timing and risk factors for genital human papillomavirus (HPV) disease in women after allogeneic hematopoietic cell transplantation (HCT). Between 1994 and 2014, 109 females underwent HCT of whom 82 surviving transplant for >1 year had regular, comprehensive genital tract assessment and treatment of HPV disease. The cumulative proportions of any genital HPV infection at 1, 3, 5, 10 and 20 years were 4.8%, 14.9%, 28.1%, 36.7% and 40.9%, respectively. Demographic, disease related factors, chronic GvHD (cGvHD) and its treatment were analyzed for their association with persistent, multifocal or severe genital HPV disease. Pre transplant HPV disease was strongly associated with any posttransplant HPV (odds ratio (OR)=6.5, 95% confidence interval (CI)=1.65-25.85, P=0.008). Having either extensive or genital cGvHD was associated with increased risk of any HPV disease (OR=5.7, 95% CI=1.90-17.16, P=0.002) and a higher risk for severe genital dysplasia (CIN II-III/VIN II-III; OR=13.1, 95% CI=1.59-108.26, P=0.017), but no one developed HPV-related genital cancer. Persistent, multifocal or severe HPV disease occurred more frequently than in healthy populations. Women with extensive cGvHD, genital cGvHD or pre-transplant HPV are at greatest risk for post-transplant HPV disease. Early initiation of annual screening, comprehensive genital tract assessment and active management are cornerstones of their gynecology care. PMID- 29035399 TI - Towards zero-threshold optical gain using charged semiconductor quantum dots. AB - Colloidal semiconductor quantum dots are attractive materials for the realization of solution-processable lasers. However, their applications as optical-gain media are complicated by a non-unity degeneracy of band-edge states, because of which multiexcitons are required to achieve the lasing regime. This increases the lasing thresholds and leads to very short optical gain lifetimes limited by nonradiative Auger recombination. Here, we show that these problems can be at least partially resolved by employing not neutral but negatively charged quantum dots. By applying photodoping to specially engineered quantum dots with impeded Auger decay, we demonstrate a considerable reduction of the optical gain threshold due to suppression of ground-state absorption by pre-existing carriers. Moreover, by injecting approximately one electron per dot on average, we achieve a more than twofold reduction in the amplified spontaneous emission threshold, bringing it to the sub-single-exciton level. These measurements indicate the feasibility of 'zero-threshold' gain achievable by completely blocking the band edge state with two electrons. PMID- 29035400 TI - Protein recognition by a pattern-generating fluorescent molecular probe. AB - Fluorescent molecular probes have become valuable tools in protein research; however, the current methods for using these probes are less suitable for analysing specific populations of proteins in their native environment. In this study, we address this gap by developing a unimolecular fluorescent probe that combines the properties of small-molecule-based probes and cross-reactive sensor arrays (the so-called chemical 'noses/tongues'). On the one hand, the probe can detect different proteins by generating unique identification (ID) patterns, akin to cross-reactive arrays. On the other hand, its unimolecular scaffold and selective binding enable this ID-generating probe to identify combinations of specific protein families within complex mixtures and to discriminate among isoforms in living cells, where macroscopic arrays cannot access. The ability to recycle the molecular device and use it to track several binding interactions simultaneously further demonstrates how this approach could expand the fluorescent toolbox currently used to detect and image proteins. PMID- 29035401 TI - Skydiving and the risk of cervical disc herniation. AB - The skydiving/parachuting sport which has recently gained popularity is also known for its accidents and injuries. However, there are a few studies related to its occupational ergonomic risks and occupational musculoskeletal diseases. It has been reported that the sudden hyperextension of the neck during the parachute opening, so called opening shock results in neck pain. It has been found that the jumpers are subjected to an average deceleration of 3-5 times the earth's gravitational acceleration (3-5 G) during parachute opening shock. It is considered that the spinal cord is destabilized by the impact of this force. This study presents the occupational cervical disc herniation occurring in the case of a subject who has been working as a skydiving/parachuting instructor for 25 years, and the ergonomic risks specific to the sports of skydiving. There is a requirement for systematic and representative studies related to the administrative measures to be taken in order to prevent the occupational diseases that may occur in the case of skydivers, the personal protective equipment to be used, and the employee. Int J Occup Med Environ Health 2018;31(2):243-249. PMID- 29035402 TI - Respiratory parameters at varied altitudes in intermittent mining work. AB - OBJECTIVES: Workers in the mining industry in altitude are subjected to several risk factors, e.g., airborne silica and low barometric pressure. The aim of this study has been to assess the risks for this work category, evaluating single risk factors as airborne silica, altitude and work shift, and relating them with cardiovascular and ventilatory parameters. MATERIAL AND METHODS: Healthy miners employed in a mining company, Chile, working at varied altitudes, and subjected to unusual work shifts, were evaluated. Cardiovascular and respiratory parameters were investigated. Exposure to airborne silica was evaluated and compared to currently binding exposure limits. RESULTS: At varied altitudes and work shifts, alterations emerged in haemoglobin, ventilation and respiratory parameters, related to employment duration, due to compensatory mechanisms for hypoxia. Haemoglobin increased with altitude, saturation fell down under 90% in the highest mines. The multiple linear regression analysis showed a direct relationship, in the higher mine, between years of exposure to altitude and increased forced vital capacity percent (FVC%), and forced expiratory volume in 1 s (FEV1). An inverse relationship emerged between forced vital capacity (FVC) and years of exposure to airborne silica. In the workplace Mina Subterranea (MT 3600), statistically significant inverse relationship emerged between the Tiffeneau index and body weight. CONCLUSIONS: The working conditions in the mining industry in altitude appeared to be potentially pathogenic; further investigations should be realized integrating risk assessment protocols even in consideration of their undeniable unconventionality. Int J Occup Med Environ Health 2018;31(2):129-138. PMID- 29035403 TI - [Polymorphism of genes encoding proteins of DNA repair vs. occupational and environmental exposure to lead, arsenic and pesticides]. AB - Genetic polymorphism is associated with the occurrence of at least 2 different alleles in the locus with a frequency higher than 1% in the population. Among polymorphisms we can find single nucleotide polymorphism (SNP) and polymorphism of variable number of tandem repeats. The presence of certain polymorphisms in genes encoding DNA repair enzymes is associated with the speed and efficiency of DNA repair and can protect or expose humans to the effects provoked by xenobiotics. Chemicals, such as lead, arsenic pesticides are considered to exhibit strong toxicity. There are many different polymorphisms in genes encoding DNA repair enzymes, which determine the speed and efficiency of DNA damage repair induced by these xenobiotics. In the case of lead, the influence of various polymorphisms, such as APE1 (apurinic/apyrimidinic endonuclease 1) (rs1130409), hOGG1 (human 8-oxoguanine glycosylase) (rs1052133), XRCC1 (X-ray repair cross complementing protein group 1) (rs25487), XRCC1 (rs1799782) and XRCC3 (X-ray repair cross-complementing protein group 3) (rs861539) were described. For arsenic polymorphisms, such as ERCC2 (excision repair cross-complementing) (rs13181), XRCC3 (rs861539), APE1 (rs1130409) and hOGG1 (rs1052133) were examined. As to pesticides, separate and combined effects of polymorphisms in genes encoding DNA repair enzymes, such as XRCC1 (rs1799782), hOGG1 (rs1052133), XRCC4 (X-ray repair cross-complementing protein group 4) (rs28360135) and the gene encoding the detoxification enzyme PON1 paraoxonase (rs662) were reported. Med Pr 2018;69(2):225-235. PMID- 29035404 TI - [Biological significance of chromium III for the human organism]. AB - Currently, chromium is probably the most controversial transition metal. In recent publications it is clearly stated that it is not an essential micronutrient and should be considered to have a pharmacological effect. Conflicting scientific reports along with a huge amount of dietary supplements, as well as dietary and sports nutrients available on the market have prompted the authors to investigate the available information on the range of possible application, efficacy and safety of products containing salts or chelates of chromium III. The authors reviewed articles in electronic databases for the years 1959-2016, and selected works describing the biochemical, physiological and toxic properties of chromium salts and chelates and the range of possible applications in medicine, dietetics and sport. A critical analysis of reports dealing with the effect of chromium on the carbohydrate and lipid metabolism, body composition, lean body mass and sports performance was carried out. The authors indicated papers analyzing the mechanism of action of chromium in the cognitive and affective disorders. Much attention has been paid to the safety use of chromium III supplements. There are still some unsolved issues. In the field of toxicology, a limited number of reports about environmental exposure to trivalent chromium in the workplace draws our attention. In the field of biochemical research, there is still a need to clarify the mechanism of psychiatric and endocrinological activity, especially in conjunction with the immune system. Med Pr 2018;69(2):211-223. PMID- 29035405 TI - Visible-light-mediated cleavage of polymer chains under physiological conditions via quinone photoreduction and trimethyl lock. AB - We introduce a click and visible-light triggered unclick approach via thio-bromo reaction and hydroquinone photoreduction/trimethyl lock cleavage for polymer modifications. Both reactions can be carried out in water and at ambient temperature, enabling preparation of bioorthogonal hydrogels for encapsulation and controlled release of various cells. PMID- 29035406 TI - Novel activity-based probes for N-acylethanolamine acid amidase. AB - The cysteine hydrolase, N-acylethanolamine acid amidase (NAAA) is a promising target for analgesic and anti-inflammatory drugs. Here, we describe the development of two unprecedented NAAA-reactive activity-based probes as research tools for application in the discovery of new inhibitors and for the in-depth characterization of NAAA in its cellular environment. PMID- 29035407 TI - Oxygen-insensitive phosphorescence in water from a Pt-doped supramolecular array. AB - A supramolecular array consisting of polyvinylpyridine decorated with adamantyl substituted Pt(ii) complexes is described. Upon complexation of the adamantyl units with cyclodextrins, a transfer into the aqueous phase can be achieved leading to an oxygen-insensitive phosphorescence. The unique properties arise from a diffusional shielding of the emitters from the environment provided by the compact self-assembled array. PMID- 29035415 TI - N- to C-sulfonyl photoisomerisation of dihydropyridinones: a synthetic and mechanistic study. AB - The scope and limitations of a photoinitiated N- to C-sulfonyl migration process within a range of dihydropyridinones is assessed. This sulfonyl transfer proceeds without erosion of either diastereo- or enantiocontrol, and is general across a range of N-sulfonyl substituents (SO2R; R = Ph, 4-MeC6H4, 4-MeOC6H4, 4-NO2C6H4, Me, Et) as well as C(3)-(aryl, heteroaryl, alkyl and alkenyl) and C(4)-(aryl and ester) substitution. Crossover reactions indicate an intermolecular step is operative within the formal migration process, although no crossover from C sulfonyl products was observed. EPR studies indicate the intermediacy of a sulfonyl radical and a mechanism is proposed based upon these observations. PMID- 29035417 TI - Relative performance of three stream bed stability indices as indicators of stream health. AB - Bed stability is an important stream habitat attribute because it affects geomorphology and biotic communities. Natural resource managers desire indices of bed stability that can be used under a wide range of geomorphic conditions, are biologically meaningful, and are easily incorporated into sampling protocols. To eliminate potential bias due to presence of instream wood and increase precision of stability values, we modified a stream bed instability index (ISI) to include measurements of bankfull depth (d bf) and median particle diameter (D 50) only in riffles and increased the pebble count to decrease variability (i.e., increase precision) in D 50 . The new riffle-based instability index (RISI) was compared to two established indices: ISI and the riffle stability index (RSI). RISI and ISI were strongly associated with each other but neither was closely associated with RSI. RISI and ISI were closely associated with both a diatom- and two macrovertebrate-based stream health indices, but RSI was only weakly associated with the macroinvertebrate indices. Unexpectedly, precision of D 50 did not differ between RISI and ISI. Results suggest that RISI is a viable alternative to both ISI and RSI for evaluating bed stability in multiple stream types. With few data requirements and a simple protocol, RISI may also better conform to riffle based sampling methods used by some water quality practitioners. PMID- 29035418 TI - Multi-criteria evaluation of hydro-geological and anthropogenic parameters for the groundwater vulnerability assessment. AB - Groundwater contamination assessment is a challenging task due to inherent complex dynamisms associated with the groundwater. DRASTIC is a very widely used rapid regional tool for the assessment of vulnerability of groundwater to contamination. DRASTIC has many lacunas in the form of subjectivities associated with weights and ratings of its hydro-geological parameters, and, therefore, the accuracy of the DRASTIC-based vulnerability map is questioned. The present study demonstrates the optimisation of the DRASTIC parameters along with a scientific consideration to the anthropogenic factors causing groundwater contamination. The resulting scientific consistent weights and ratings to DRASTIC parameters assist in the development of a very precise groundwater vulnerability map highlighting different zones of different gravity of contamination. One of the most important aspects of this study is that we have considered the impact of vadose zone in a very comprehensive manner by considering every sub-surface layer from the earth surface to the occurrence of groundwater. The study area for our experiment is Fatehgarh Sahib district of Punjab which is facing several groundwater issues. PMID- 29035419 TI - Band-gap engineering of halogenated silicon nanowires through molecular doping. AB - In this work, we address the effects of molecular doping on the electronic properties of fluorinated and chlorinated silicon nanowires (SiNWs), in comparison with those corresponding to hydrogen-passivated SiNWs. Adsorption of n type dopant molecules on hydrogenated and halogenated SiNWs and their chemisorption energies, formation energies, and electronic band gap are studied by using density functional theory calculations. The results show that there are considerable charge transfers and strong covalent interactions between the dopant molecules and the SiNWs. Moreover, the results show that the energy band gap of SiNWs changes due to chemical surface doping and it can be further tuned by surface passivation. We conclude that a molecular based ex-situ doping, where molecules are adsorbed on the surface of the SiNW, can be an alternative path to conventional doping. Graphical abstract Molecular doping of halogenated silicon nanowires. PMID- 29035420 TI - Modeling the secondary structures of the peptaibols antiamoebin I and zervamicin II modified with D-amino acids and proline analogues. AB - Antiamoebin I (AAM-I) and zervamicin II (Zrv-IIB) are peptaibols that exert antibiotic activity through the insertion/disruption of cell membranes. In this study, we investigated how the folding of these peptaibols are affected when some of their native residues are replaced with proline analogues and asymmetrical D alpha,alpha-dialkyl glycines (two classes of noncanonical amino acids). Systematic substitutions of native Aib, Pro, Hyp, and Iva residues were performed to elucidate the folding properties of the modified peptaibols incorporating noncanonical residues. The secondary structure of a peptaibol influences its ability to incorporate into membranes and therefore its function. Our findings reveal that native Zrv-IIB unfolds considerably in water. The presence of Iva and the noncanonical proline analogue cis-3-amino-L-proline (ALP) in both peptaibols induces helical structures. Inserting asymmetric glycines such as alpha-methyl-D leucine (MDL) and alpha-methyl-D-phenylalanine (MDP) into the peptaibols induces folding. This preorganization in water may help to overcome the energy barrier required for peptaibol insertion into the membrane, as well as to facilitate the formation of transmembrane channels. Graphical abstract AAM-I and Zrv-IIB peptidomimetics carrying MDL and ALP noncanonical amino acids, exhibiting improved helical secondary structure in water. PMID- 29035421 TI - Updated Guideline May Improve the Recognition and Diagnosis of Hypertension in Children and Adolescents; Review of the 2017 AAP Blood Pressure Clinical Practice Guideline. AB - PURPOSE OF REVIEW: Hypertension in children and adolescents is under-recognized and under-diagnosed in clinical practice. The 2017 AAP Clinical Practice Guideline for Screening and Management of High Blood Pressure in Children and Adolescents provides updated recommendations that may improve hypertension identification and management. RECENT FINDINGS: The AAP blood pressure guideline recommends annual screening for hypertension in children at preventive care visits and targeted routine screening in high-risk populations. A simplified blood pressure screening table is provided for easier recognition of blood pressures that may require attention. Normative blood pressure tables have been revised to include only data from normal-weight children as more representative of a healthy population. Classification of blood pressure in adolescents has been simplified to threshold values consistent with adult guidelines. The updated AAP blood pressure guideline has clarified and simplified recommendations for hypertension screening, diagnosis, and management based on a systematic review of current best evidence. PMID- 29035422 TI - The Use of Telemedicine and Mobile Technology to Promote Population Health and Population Management for Psychiatric Disorders. AB - PURPOSE OF REVIEW: This article discusses recent applications in telemedicine to promote the goals of population health and population management for people suffering psychiatric disorders. RECENT FINDINGS: The use of telemedicine to promote collaborative care, self-monitoring and chronic disease management, and population screening has demonstrated broad applicability and effectiveness. Collaborative care using videoconferencing to facilitate mental health specialty consults has demonstrated effectiveness in the treatment of depression, PTSD, and also ADHD in pediatric populations. Mobile health is currently being harnessed to monitor patient symptom trajectories with the goal of using machine learning algorithms to predict illness relapse. Patient portals serve as a bridge between patients and providers. They provide an electronically secure shared space for providers and patients to collaborate and optimize care. To date, research has supported the effectiveness of telemedicine in promoting population health. Future endeavors should focus on developing the most effective clinical protocols for using these technologies to ensure long-term use and maximum effectiveness in reducing population burden of mental health. PMID- 29035424 TI - CYP21A2 mutation update: Comprehensive analysis of databases and published genetic variants. AB - Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders of adrenal steroidogenesis. Disorders in steroid 21-hydroxylation account for over 95% of patients with CAH. Clinically, the 21-hydroxylase deficiency has been classified in a broad spectrum of clinical forms, ranging from severe or classical, to mild late onset or non-classical. Known allelic variants in the disease causing CYP21A2 gene are spread among different sources. Until recently, most variants reported have been identified in the clinical setting, which presumably bias described variants to pathogenic ones, as those found in the CYPAlleles database. Nevertheless, a large number of variants are being described in massive genome projects, many of which are found in dbSNP, but lack functional implications and/or their phenotypic effect. In this work, we gathered a total of 1,340 GVs in the CYP21A2 gene, from which 899 variants were unique and 230 have an effect on human health, and compiled all this information in an integrated database. We also connected CYP21A2 sequence information to phenotypic effects for all available mutations, including double mutants in cis. Data compiled in the present work could help physicians in the genetic counseling of families affected with 21-hydroxylase deficiency. PMID- 29035425 TI - Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very low birth weight preterm infants. AB - BACKGROUND: This is an update of a review published in 2012. A related review "Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low birth weight preterm neonates" has been updated as well. Bronchopulmonary dysplasia (BPD) is a serious and common problem among very low birth weight infants, despite the use of antenatal steroids and postnatal surfactant therapy to decrease the incidence and severity of respiratory distress syndrome. Due to their anti-inflammatory properties, corticosteroids have been widely used to treat or prevent BPD. However, the use of systemic steroids has been associated with serious short- and long-term adverse effects. Administration of corticosteroids topically through the respiratory tract may result in beneficial effects on the pulmonary system with fewer undesirable systemic side effects. OBJECTIVES: To compare the effectiveness of inhaled versus systemic corticosteroids administered to ventilator-dependent preterm neonates with birth weight <= 1500 g or gestational age <= 32 weeks after 7 days of life on the incidence of death or BPD at 36 weeks' postmenstrual age. SEARCH METHODS: We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL 2017, Issue 1), MEDLINE via PubMed (1966 to 23 February 2017), Embase (1980 to 23 February 2017), and CINAHL (1982 to 23 February 2017). We also searched clinical trials registers, conference proceedings and the reference lists of retrieved articles for randomised controlled trials and quasi-randomised trials. SELECTION CRITERIA: Randomised or quasi-randomised controlled trials comparing inhaled versus systemic corticosteroid therapy (irrespective of dose and duration) starting after the first week of life in ventilator-dependent very low birth weight infants. DATA COLLECTION AND ANALYSIS: We used standard methodological procedures expected by the Cochrane Collaboration. MAIN RESULTS: We included three trials that involved a total of 431 participants which compared inhaled versus systemic corticosteroids to treat BPD. No new trials were included for the 2017 update.Although one study randomised infants at < 72 hours (N = 292), treatment started when infants were aged > 15 days. In this larger study, deaths were included from the point of randomisation and before treatment started. Two studies (N = 139) randomised and started treatment at 12 to 21 days.Two trials reported non-significant differences between groups for the primary outcome: incidence of death or BPD at 36 weeks' postmenstrual age among all randomised infants. Estimates for the largest trial were Relative risk (RR) 1.04 (95% Confidence interval (CI) 0.86 to 1.26), Risk difference (RD) 0.03 (95% CI -0.09 to 0.15); (moderate-quality evidence). Estimates for the other trial reporting the primary outcome were RR 0.94 (95% CI 0.83 to 1.05), RD -0.06 (95% CI -0.17 to 0.05); (low-quality evidence).Secondary outcomes that included data from all three trials showed no significant differences in the duration of mechanical ventilation or supplemental oxygen, length of hospital stay, or the incidence of hyperglycaemia, hypertension, necrotising enterocolitis, gastrointestinal bleed, retinopathy of prematurity or culture-proven sepsis moderate- to low-quality evidence).In a subset of 75 surviving infants who were enrolled from the United Kingdom and Ireland, there were no significant differences in developmental outcomes at seven years of age between groups (moderate-quality evidence). One study received grant support and the industry provided aerochambers and metered dose inhalers of budesonide and placebo for the same study. No conflict of interest was identified. AUTHORS' CONCLUSIONS: We found no evidence that inhaled corticosteroids confer net advantages over systemic corticosteroids in the management of ventilator-dependent preterm infants. There was no evidence of difference in effectiveness or adverse event profiles for inhaled versus systemic steroids.A better delivery system guaranteeing selective delivery of inhaled steroids to the alveoli might result in beneficial clinical effects without increasing adverse events.To resolve this issue, studies are needed to identify the risk/benefit ratio of different delivery techniques and dosing schedules for administration of these medications. The long-term effects of inhaled steroids, with particular attention to neurodevelopmental outcomes, should be addressed in future studies. PMID- 29035423 TI - Dementia Risk in Posttraumatic Stress Disorder: the Relevance of Sleep-Related Abnormalities in Brain Structure, Amyloid, and Inflammation. AB - PURPOSE OF REVIEW: Posttraumatic stress disorder (PTSD) is associated with increased risk for dementia, yet mechanisms are poorly understood. RECENT FINDINGS: Recent literature suggests several potential mechanisms by which sleep impairments might contribute to the increased risk of dementia observed in PTSD. First, molecular, animal, and imaging studies indicate that sleep problems lead to cellular damage in brain structures crucial to learning and memory. Second, recent studies have shown that lack of sleep might precipitate the accumulation of harmful amyloid proteins. Finally, sleep and PTSD are associated with elevated inflammation, which, in turn, is associated with dementia, possibly via cytokine mediated neural toxicity and reduced neurogenesis. A better understanding of these mechanisms may yield novel treatment approaches to reduce neurodegeneration in PTSD. The authors emphasize the importance of including sleep data in studies of PTSD and cognition and identify next steps. PMID- 29035426 TI - Synthesis of BSA-Coated BiOI@Bi2 S3 Semiconductor Heterojunction Nanoparticles and Their Applications for Radio/Photodynamic/Photothermal Synergistic Therapy of Tumor. AB - Developing an effective theranostic nanoplatform remains a great challenge for cancer diagnosis and treatment. Here, BiOI@Bi2 S3 @BSA (bovine serum albumin) semiconductor heterojunction nanoparticles (SHNPs) for triple-combination radio/photodynamic/photothermal cancer therapy and multimodal computed tomography/photoacoustic (CT/PA) bioimaging are reported. On the one hand, SHNPs possess strong X-ray attenuation capability since they contain high-Z elements, and thus they are anticipated to be a very competent candidate as radio sensitizing materials for radiotherapy enhancement. On the other hand, as a semiconductor, the as-prepared SHNPs offer an extra approach for reactive oxygen species generation based on electron-hole pair under the irradiation of X-ray through the photodynamic therapy process. This X-ray excited photodynamic therapy obviously has better penetration depth in bio-tissue. What's more, the SHNPs also possess well photothermal conversion efficiency for photothermal therapy, because Bi2 S3 is a thin band semiconductor with strong near-infrared absorption that can cause local overheat. In vivo tumor ablation studies show that synergistic radio/photodynamic/photothermal therapy achieves more significant therapeutic effect than any single treatment. In addition, with the strong X-ray attenuation and high near-infrared absorption, the as-obtained SHNPs can also be applied as a multimodal contrast agent in CT/PA imaging. PMID- 29035427 TI - Differences in the Korea Acute Myocardial Infarction Registry Compared with Western Registries. AB - The Korea Acute Myocardial Infarction Registry (KAMIR) is the first nationwide registry that reflects current therapeutic approaches and acute myocardial infarction (AMI) management in Korea. The results of the KAMIR demonstrated different risk factors and responses to medical and interventional treatments. The results indicated that the incidence of ST-elevation myocardial infarction (STEMI) was relatively high, and that the prevalence of dyslipidemia was relatively low with higher triglyceride and lower high-density lipoprotein cholesterol levels. Percutaneous coronary intervention (PCI) rates were high for both STEMI and non-ST-elevation myocardial infarction (NSTEMI) with higher use of drug-eluting stents (DESs). DES were effective and safe without increased risk of stent thrombosis in Korean AMI patients. Triple antiplatelet therapy, consisting of aspirin, clopidogrel, and cilostazol, was effective in preventing adverse clinical outcomes after PCI. Statin therapy was effective in Korean AMI patients, including those with very low levels of low-density lipoprotein cholesterol and those with cardiogenic shock. The KAMIR score had a greater predictive value than Thrombolysis in Myocardial Infarction (TIMI) and Global Registry of Acute Coronary Events (GRACE) scores for long-term mortality in AMI patients. Based on these results, the KAMIR will be instrumental for establishing new therapeutic strategies and effective methods for secondary prevention of AMI and guidelines for Asian patients. PMID- 29035428 TI - Initial Report of the Korean Organ Transplant Registry (KOTRY): Heart Transplantation. AB - BACKGROUND AND OBJECTIVES: The Korean Organ Transplant Registry (KOTRY), which was the first national transplant registry in Korea, was founded by the Korean Society for Transplantation and the Korean Center for Disease Control in 2014. Here, we present the initial report of the Korean Heart Transplant Registry. METHODS: A total of 183 heart transplantation (HTPL) patients performed at 4 nationally representative hospitals were collected from April 2014 to December 2015. We analyzed donor and recipient characteristics, treatment patterns, and immediate post-transplantation outcomes. RESULTS: One hundred and eighty-three patients were enrolled. The mean age of the patients was 50.5+/-13.5 years. The mean age of the male recipients was 4 years greater than that of the female recipients (51.7+/-13.3 years vs. 47.9+/-13.7 years, p<0.050). The mean age of donors was more than 12 years younger than that of heart recipients (37.6+/-10.1 years). Dilated cardiomyopathy was the predominant cause (69%) of heart failure in recipients, followed by ischemic heart diseases (14%) and valvular heart disease (4%). Rejection episodes were most frequent in the 1-6-month period after transplantation (48%), and rarely required intensive treatment. Infection episodes were most frequent <1 month after transplantation (66%) and bacterial and viral infections were equally reported. The 1-year survival rate was 91.6% and most mortality cases occurred during the perioperative period within 1 month after transplantation. CONCLUSION: With the establishment of the KOTRY in 2014, it is now possible to present nationwide epidemiological data for HTPL in Korea for the first time. The KOTRY is the first national HTPL registry in Korea, and will continue until 2023. PMID- 29035430 TI - The Use Pattern and Clinical Impact of New Antiplatelet Agents Including Prasugrel and Ticagrelor on 30-day Outcomes after Acute Myocardial Infarction in Korea: Korean Health Insurance Review and Assessment Data. AB - BACKGROUND AND OBJECTIVES: Despite the favorable efficacy of new antiplatelet agents demonstrated in randomized controlled trials, their clinical implications in Korea are unclear. The purpose of this study was to investigate trends in antiplatelet agent use for acute myocardial infarction (AMI) and their impact on 30-day clinical outcomes. METHODS: AMI patients undergoing percutaneous coronary intervention between 2010 and 2015 were assessed using claim data from the Health Insurance Review and Assessment Service. RESULTS: The use of new antiplatelet agents has rapidly increased since 2013 and has been preferred over clopidogrel (Plavix; Bristol-Myers Squibb/Sanofi Pharmaceuticals) since 2015. Both prasugrel (Effient; Eli Lilly and Company) (odds ratio [OR], 0.45; 95% confidence interval [CI], 0.31-0.67; p<0.001) and ticagrelor (Brilinta; AstraZeneca Pharmaceuticals LP) (OR, 0.84; 95% CI, 0.71-0.98; p=0.032) had an independent effect on lowering 30-day mortality in a weighted multivariable logistic regression model. However, new antiplatelet agents had no significant effect on other clinical outcomes including myocardial infarction, stroke, bleeding, and readmission within 30 days. CONCLUSION: The use of new antiplatelet agents is rapidly increasing, and they have been used more commonly than clopidogrel since 2015. We demonstrated that new antiplatelet agents have a favorable effect on reducing 30-day mortality in AMI patients in Korea. PMID- 29035432 TI - Unusual Disc Dislodgement of a Bjork-Shiley Valve after Long-term Implantation. PMID- 29035429 TI - Where Is the "Optimal" Fontan Hemodynamics? AB - Fontan circulation is generally characterized by high central venous pressure, low cardiac output, and slightly low arterial oxygen saturation, and it is quite different from normal biventricular physiology. Therefore, when a patient with congenital heart disease is selected as a candidate for this type of circulation, the ultimate goals of therapy consist of 2 components. One is a smooth adjustment to the new circulation, and the other is long-term circulatory stabilization after adjustment. When either of these goals is not achieved, the patient is categorized as having "failed" Fontan circulation, and the prognosis is dismal. For the first goal of smooth adjustment, a lot of effort has been made to establish criteria for patient selection and intensive management immediately after the Fontan operation. For the second goal of long-term circulatory stabilization, there is limited evidence of successful strategies for long-term hemodynamic stabilization. Furthermore, there have been no data on optimal hemodynamics in Fontan circulation that could be used as a reference for patient management. Although small clinical trials and case reports are available, the results cannot be generalized to the majority of Fontan survivors. We recently reported the clinical and hemodynamic characteristics of early and late failing Fontan survivors and their association with all-cause mortality. This knowledge could provide insight into the complex Fontan pathophysiology and might help establish a management strategy for long-term hemodynamic stabilization. PMID- 29035433 TI - Huge Fresh Mobile Thrombus Attached to the Descending Thoracic Aorta. PMID- 29035431 TI - Prognostic Application of Thoracic Aortic Calcium Scoring for Adverse Clinical Outcome Risk in Elderly Patients with Left Ventricular Hypertrophy. AB - BACKGROUND AND OBJECTIVES: Left ventricular hypertrophy (LVH) is associated with poor cardiovascular outcomes. Heavy aortic calcification exacerbates arterial stiffness, which consequently heightens left ventricular (LV) afterload. We assessed the usefulness of aortic calcification for predicting adverse cardiovascular outcomes and to determine whether the relationship, if any, differed as a function of LVH. METHODS: The analytic sample was comprised of a total of 487 individuals 65 years of age or older. Thoracic aorta calcium score (TACS) was measured by coronary computed tomography, and patients were stratified according to the median (TACS, 446 mm3). LVH obtained from echocardiography was defined as LV mass index >115 g/m2 for men and >95 g/m2 for women. Cox regression reporting hazard ratios (HRs) with 95% confidence intervals (CIs) was performed to predict the risk for the composite study endpoint, defined as cardiac death, admission for heart failure, obstructive coronary artery disease (CAD) requiring revascularization, or stroke. RESULTS: A total of 39 composite events (8.0%) occurred during a median follow-up of 65 months (interquartile range [IQR], 17-89 months). For those with LVH, the concurrent presence of high TACS appeared to be an independent predictor (HR, 4.51; 95% CI, 1.71-11.88; p=0.002) for the composite study endpoint. Other combined LVH and TACS subgroups were not associated with significant factors for predicting the composite study endpoint (p>0.050, all). CONCLUSION: TACS provides robust predictive utility for a composite of cardiovascular events and cardiac death in persons with LVH. This finding was less pronounced in those with a relatively healthy myocardium, defined by the absence of LVH. PMID- 29035434 TI - Zebrafish Larvae Model of Dilated Cardiomyopathy Induced by Terfenadine. AB - BACKGROUND AND OBJECTIVES: Dilated cardiomyopathy can be the end-stage of severe cardiac disorders and directly affects the cardiac muscle, inducing cardiomegaly and heart failure (HF). Although a wide variety of animal models are available to study dilated cardiomyopathy, there is no model to assess dilated cardiomyopathy with non-invasive, simple, and large screening methods. METHODS: We developed a dilated cardiomyopathy model in zebrafish larvae using short duration terfenadine, a known cardiotoxic drug that induces ventricular size dilation. Fractional shortening of zebrafish hearts was calculated. RESULTS: We treated zebrafish with 5 to 10 MUM terfenadine for 24 hours. In terfenadine-treated zebrafish, blood frequently pooled and clotted in the chamber, and circulation was remarkably reduced. Atria and ventricles were swollen, and fluid was deposited around the heart, mimicking edema. Cardiac contractility was significantly reduced, and ventricular area was significantly enlarged. Heart rate was markedly reduced even after terfenadine withdrawal. Acridine orange staining also showed that terfenadine increased cardiomyocyte apoptosis. A significant increase of natriuretic peptide B (NPPB) mRNA was found in terfenadine-treated zebrafish. A low dose of terfenadine (5-10 MUM) did not show mortality in short-term treatment (24 hours). However, moderate dose (35-45 MUM) terfenadine treatment reduced zebrafish survival within 1 hour. CONCLUSION: With advantages of rapid sample preparation procedure and transparent observation of the live heart, this model can potentially be applied to large-scale drug screening and toxicity assays for non-ischemic HF. PMID- 29035435 TI - Clinical and Angiographic Outcomes of the First Korean-made Sirolimus-Eluting Coronary Stent with Abluminal Bioresorbable Polymer. AB - BACKGROUND AND OBJECTIVES: This trial evaluated the safety and efficacy of the Genoss drug-eluting coronary stent. METHODS: This study was a prospective, multicenter, randomized trial with a 1:1 ratio of Genoss drug-eluting stent (DES)TM and Promus ElementTM. Inclusion criteria were the presence of stable angina, unstable angina, or silent ischemia. Angiographic inclusion criteria were de novo coronary stenotic lesion with diameter stenosis >50%, reference vessel diameter of 2.5-4.0 mm, and lesion length <=40 mm. The primary endpoint was in stent late lumen loss at 9-month quantitative coronary angiography follow-up. Secondary endpoints were in-segment late lumen loss, binary restenosis rate, death, myocardial infarction (MI), target lesion revascularization (TLR), target vessel revascularization (TVR), and stent thrombosis during 9 months of follow up. RESULTS: We enrolled 38 patients for the Genoss DESTM group and 39 patients for the Promus ElementTM group. In-stent late lumen loss at 9 months was not significantly different between the 2 groups (0.11+/-0.25 vs. 0.16+/-0.43 mm, p=0.567). There was no MI or stent thrombosis in either group. The rates of death (2.6% vs. 0%, p=0.494), TLR (2.6% vs. 2.6%, p=1.000), and TVR (7.9% vs. 2.6%, p=0.358) at 9 months were not significantly different. CONCLUSION: This first-in patient study of the Genoss DESTM stent showed excellent angiographic outcomes for in-stent late lumen loss and major adverse cardiac events over a 9-month follow-up. PMID- 29035437 TI - Serum Uric Acid Levels and the Risk of Obesity: a Longitudinal Population-Based Epidemiological Study. AB - BACKGROUND: Obesity is a common chronic disease, and elevated serum uric acid has been suggested to be associated with obesity. However, whether the elevation is casual or a consequence of obesity remains unclear. We performed the study to investigate the longitudinal association between serum uric acid levels and obesity. METHODS: A total of 4411 initially obesity-free subjects were followed up for 9 years. The subjects were divided into groups according to the serum uric acid quartile. Univariable and multivariable Cox regression models were used to analyze the risk factors for the development of obesity. RESULTS: Of the 4411 subjects, 1272 (28.8%) subjects developed obesity over 9 years of follow-up. The cumulative incidence of obesity was 21.7%, 26.4%, 31.0%, and 36.4% in quartile 1, 2, 3 and 4, respectively (p for trend < 0.001). Cox regression analyses indicated that serum uric acid levels were independently and positively associated with the risk of incident obesity. CONCLUSIONS: Our longitudinal study demonstrated that high serum uric acid levels increase the risk of obesity. PMID- 29035436 TI - Cardioprotective Effect of the SDF-1alpha/CXCR4 Axis in Ischemic Postconditioning in Isolated Rat Hearts. AB - BACKGROUND AND OBJECTIVES: Information about the role of the stromal cell-derived factor-1alpha (SDF-1alpha)/chemokine receptor type 4 (CXCR4) axis in ischemic postconditioning (IPOC) is currently limited. We hypothesized that the SDF 1alpha/CXCR4 signaling pathway is directly involved in the cardioprotective effect of IPOC. METHODS: Isolated rat hearts were divided into four groups. The control group was subjected to 30-min of regional ischemia and 2-hour of reperfusion (n=12). The IPOC group was induced with 6 cycles of 10-second reperfusion and 10-second global ischemia (n=8) in each cycle. The CXCR4 antagonist, AMD3100, was applied before reperfusion in the IPOC group (AMD+IPOC group, n=11) and control group (AMD group, n=9). Hemodynamic changes with electrocardiography were monitored and infarct size was measured. The SDF-1alpha, lactate dehydrogenase (LDH) and creatine kinase (CK) concentrations in perfusate were measured. We also analyzed extracellular signal-regulated kinase 1/2 (ERK1/2) and Akt phosphorylation state expression. RESULTS: IPOC significantly reduced infarct size, but AMD3100 attenuated the infarct reducing effect of IPOC. IPOC significantly decreased LDH and CK, but these effects were reversed by AMD3100. ERK1/2 and Akt phosphorylation increased with IPOC and these effects were blocked by AMD3100. CONCLUSION: Based on the results of this study, SDF 1alpha/CXCR4 signaling may be involved in IPOC cardioprotection and this signaling pathway couples to the ERK1/2 and Akt pathways. PMID- 29035439 TI - Mean Platelet Volume in Patients with Increased Cardiac Troponin I. PMID- 29035438 TI - High-Throughput Screening of Escherichia coli O157:H7 Pathogenic Genes via Pathway Enrichment and Operon Analysis. AB - BACKGROUND: About thirty thousand people globally die every day from infectious diarrhea, mostly caused by pathogenic Escherichia coli (E. coli) O157:H7. METHODS: In order to search for clinical diagnostic biomarkers and novel drug targets for infectious diarrhea, we used a bibliometric method to collect pathogenic genes of E. coli O157:H7 and performed a functional analysis of the important pathogenic genes by pathway enrichment and operon analysis. RESULTS: We found 364 pathogenic genes which may be involved in infection with E. coli O157:H7 including 50 new specific pathogenic genes. It is possible that these newly found pathogenic genes will be of great importance in the treatment of E. coli O157:H7 infected diseases and the discovery of novel diagnostic biomarkers. CONCLUSIONS: Our findings also lay a theoretical foundation for the control, diagnosis, and prognosis of pathogenic E. coli related diseases. PMID- 29035440 TI - Impact of pH on Urine Chemistry Assayed on Roche Analyzers. AB - BACKGROUND: The pH may impact the concentration of certain urinary parameters, making urine pre-treatment questionable. METHODS: 1) Determining the impact of pH in vitro on the urinary concentration of chemistry parameters assayed on Roche Modular analyzers. 2) Evaluating whether concentrations depended on pH in non pretreated urines from patients. RESULTS: 1) The optimal urinary pH values for each measurement were: 6.3 +/- 0.8 (amylase), < 5.5 (calcium and magnesium), < 6.5 (phosphorus), > 6.5 (uric acid). Urinary creatinine, sodium and urea concentrations were not pH-dependent. 2) In urines from patients, the pH was negatively associated with the concentration of some urinary parameters. However, concentrations of all the parameters were strongly and positively correlated with urinary creatinine, and relationships with pH were no longer evidenced after creatinine-normalization. CONCLUSIONS: The need for urine pH adjustment does not seem necessary when considering renal function. However, from an analytical and accreditation standpoint, the relationship between urine pH and several parameters justifies its measurement. PMID- 29035441 TI - Eubacterium moniliforme Bacteremia in a Woman with Fractures. AB - E. moniliforme infections in humans have not been reported previously. We firstly described blood-stream infections caused by E. moniliforme in an elder woman with fractures of her left thigh. This study highlights the strategies to detect this anaerobic pathogen and the importance of investigating its molecular epidemiology in humans. PMID- 29035442 TI - Long Noncoding RNA PVT1 as a Potent Predictor of Prognosis in Cancers: a Meta Analysis. AB - BACKGROUND: Plasmacytoma variant translocation 1 (PVT1), an oncogenic long noncoding RNA located in a recognized cancer-risk gene region-8q24, is significantly overexpressed in various cancers. Many studies have found that high expression of PVT1 was correlated with poor prognosis. METHODS: This meta analysis was performed by searching electronic databases Pubmed, Web of Science, Chinese National Knowledge Infrastructure, WanFang, and ChongQing VIP for eligible papers on the prognostic impact and clinicopathological characteristics of PVT1 expression in cancer from inception to January 31, 2017. The hazard ratio (HR) and odds ratio (OR) with 95% confidence intervals (CI) were computed to estimate the pooled effect of PVT1 on prognosis of cancers using Stata 12.0 version software. RESULTS: Thirteen studies were finally included in this review with a total of 1559 patients. The pooled result indicated that overexpressed PVT1 predicts a poorer prognosis of cancerous patients for overall survival (HR = 1.91, 95% CI: 1.61 - 2.26, p < 0.001) and disease-free survival (HR = 1.90, 95% CI: 1.46 - 2.48, p < 0.001) or recurrencefree survival (HR = 1.77, 95% CI: 1.24 - 2.52, p = 0.002) or progression-free survival (HR = 2.84, 95% CI: 1.67 - 4.82, p < 0.001). High expression of PVT1 was closely associated with tumor-node metastasis (TNM) stage (III/IV vs. I/II: OR = 3.19, 95% CI: 2.43 - 4.18, p < 0.001), and the significant correlation between PVT1 expression and TNM stage is found in T classification (T3/4 vs. T1/2: OR = 6.48, 95% CI: 2.93 - 14.31, p < 0.001) and lymph node metastasis (present vs. absent: OR = 2.56, 95% CI:1.36 - 4.80, p = 0.003), but not in distant metastasis of patients with cancers (yes vs. no: OR = 2.50, 95% CI: 0.72 - 8.66, p = 0.15). Furthermore, the cancerous patients with high PVT1 expression had a worse histological differentiation than those with low PVT1 expression (undifferentiated/poorly vs. moderately/well: OR = 1.48, 95% CI: 1.02 - 2.14, p = 0.039). CONCLUSIONS: PVT1 could serve as a potent predicator of prognosis in different types of cancers. PMID- 29035443 TI - Genetic Variants of Pre-microRNAs A-499G(rs3746444) and T-196a2C(rs11614913) with Ulcerative Colitis (UC) and Investigated with Thiopurine-S-Methyltransferase (TPMT) Activity. AB - BACKGROUND: Abnormal expression and different splicing of miRNAs are involved in several human inflammatory disorders. It has been suggested that gene variants of miRNAs may be associated with increased risk of ulcerative colitis (UC). We aimed to evaluate the association of two SNPs (miRNA-A-499G(rs3746444) and miRNA T196a2C(rs11614913)) with the risk of UC and monitor their effect on thiopurine-S methyltransferase (TPMT) activity in Kurdish population of Iran. METHODS: This case-control study was performed on 210 UC patients and 212 healthy individuals. Genotyping assay was performed using PCR-RFLP and the TPMT-activity was measured via non-extraction-HPLC method. RESULTS: We found that the existence of GG genotypes and G allele of miRNA-A-499G SNPs significantly increased the risk of UC by 1.76 and 1.32 times, respectively. The distribution of GG genotype (23.8% vs. 16%, chi2 = 4.2, p = 0.041) and G allele (46.4% vs. 39.4%, chi2 = 4, p = 0.046) of miRNA-A-499G, were significantly higher in UC patients compared to control group. Our results indicate that miRNA SNPs (miRNA-T-196a2C and miRNA-A 499G) have no significant effect on TPMT activity of studied population. CONCLUSIONS: Our results, for the first time, demonstrate that the GG genotype and G allele of miRNA-A-499G significantly increase the risk of UC. However, miRNA SNPs showed no significant effect on TPMT activity in studied population. PMID- 29035444 TI - Circulating microRNAs Expressions as Genetic Biomarkers in Pancreatic Cancer Patients Continuous Non-Invasive Monitoring. AB - BACKGROUND: Pancreatic cancer is one of the most important causes of death worldwide. The main cause is late detection. Also, an important factor playing a role in altering the clinical status of these patients is the lack of methods for the evaluation of therapeutic response. A marker that can be useful, both in early diagnosis and in evaluating and monitoring non-invasive treatment response, is analyzing the expression of miRNAs. In this paper, we summarize genetic and epigenetic aspects of miRNAs in pancreatic cancer. Moreover, we want to emphasize potential miRNAs expressions that can be used as biomarkers for the management of patients with pancreatic cancer. METHODS: Studies available in scientific databases, such as PubMed and Scopus, were analyzed for conducting the present study. The keywords "miRNAs expression", "pancreatic cancer", and "genetic biomarkers" were used in the search engine. RESULTS: Following the searches, 187 primary scientific articles were analyzed. After rigorous analysis 40 articles were selected for the study. A high percentage of papers highlight the importance of using microRNAs as modern, non-invasive, and accurate biomarkers, designed for the early diagnosis and continuous monitoring of both the clinical outcome and treatment response of the patient. CONCLUSIONS: The expression of miRNAs can be successfully used for the evaluation and non-invasive monitoring of patients with pancreatic cancer. PMID- 29035445 TI - Expression of Leukocytic Syncytin-1 in B-Cell Acute Lymphoblastic Leukemia and Acute Myeloid Leukemia Patients. AB - BACKGROUND: Syncytin-1 is improperly expressed in several cancers. However, its expression profile across leukocytes in leukemia patients has not yet been analyzed. METHODS: A total of 50 AML cases and 14 B-cell ALL patients were consecutively recruited. Bone marrow samples were subjected to flow cytometry. Statistical analysis was applied to compare syncytin-1 expression between B-cell ALL and AML across granulocytes, leukemia cells, and T-lymphocytes (including CD3+, CD4+, and CD8+ subsets thereof) and to correlate syncytin-1 expression to leukemia cells and lymphocytes with the T-cell subset percentages. RESULTS: The syncytin-1-expressing leukemia cell% in AML patients was significantly higher than that in B-cell ALL patients (p < 0.05). The CD8+ T-cell% in AML patients was significantly higher than that in B-cell ALL patients (p < 0.05). The syncytin-1 expression rate on leukemia cells was positively correlated with the CD8+ T-cell percentage (r = 0.289, p < 0.05), while the syncytin-1 expression rate on lymphocytes was negatively correlated with the CD3+, CD4+, and CD8+ T-cell percentages (r = -0.273, -0.450, and -0.307, respectively; p < 0.05). CONCLUSIONS: The percentage of syncytin-1-expressing leukemia cells in AML - due to its positive correlation with the CD8+ suppressor T-cell percentage - shows potential as an indicator of poorer long-term immunity in AML patients. PMID- 29035446 TI - The Effects of Insulin and Glucose on Different Characteristics of a UPEC: Alterations in Growth Rate and Expression Levels of some Virulence Genes. AB - BACKGROUND: Host factors are known to modulate virulence, antibiotic susceptibility, and growth rate of bacteria. The effect of human insulin and glucose on growth rate and expression of virulence genes (usp, sfa/foc, cnf1) of a uropathogenic E. coli (UPEC) strain were investigated in this study. METHODS: E. coli C7 was grown in tryptic soy broth (TSB-control) and TSB containing 20 uU/mL insulin, 200 uU/mL insulin, 0.1% glucose, and 200 uU/mL insulin + 0.1% glucose. Growth rates were determined via optical density measurement in a spectrophotometer. Real-time polymerase chain reaction was used to determine the gene expression levels. Statistical analyses were performed via Tukey's post hoc test. RESULTS: Differences were found to be not statistically significant for bacterial growth rate in TSB and TSB with insulin and/or glucose. The expression levels of all three virulence genes were shown to be reduced significantly in the presence of insulin and/or glucose. The highest degree of repression was observed in 200 uU/mL insulin added to TSB. Also, the repression level of the gene expression was revealed to be reduced in 0.1% glucose supplemented TSB. CONCLUSIONS: In the present study, it was shown that insulin and glucose can modulate UPEC's gene expression while the growth rate was not affected. PMID- 29035447 TI - Porphyromonas gingivalis Infection Accelerates Atherosclerosis Mediated by Oxidative Stress and Inflammatory Responses in ApoE-/- Mice. AB - BACKGROUND: The periodontal pathogen Porphyromonas gingivalis (P. gingivalis) has been proven to accelerate the development of atherosclerosis in apolipoprotein E (ApoE)-deficient mice. In this study, we used an ApoE knockout (ApoE-/-) mouse model with chronic intravenous infection with P. gingivalis to investigate the possible mechanisms of P. gingivalis-induced atherosclerosis. METHODS: Eight-week old ApoE-/- mice were randomly assigned to two groups: (a) ApoE-/- + PBS (n = 8); (b) ApoE-/- + P. gingivalis (n = 8). Both of the groups received intravenous injections 3 times per week. After 4 weeks, oxidative stress mediators in serum, heart, aorta, and liver tissues were analyzed by using histology, ELISA, realtime PCR, and Western blot. RESULTS: Development of atherosclerosis as plaque formation in the aorta has been confirmed upon P. gingivalis infection. An abnormal lipid profile was found in the serum (increased amounts of very low density lipoprotein [vLDL] and oxidized low-density lipoprotein [oxLDL], and decreased amount of HDL) and in some organs including heart, aorta or liver (increased mRNA levels of oxidized low-density lipoprotein receptor-1 [LOX-1] or fatty acid synthase [FAS]). Meanwhile, aggravated oxidative stress (higher level of reactive oxygen species [ROS] in the serum, and increased mRNA levels of nicotinamide adenine dinucleotide phosphate oxidase [NOX]-2 and/or NOX-4 in the three organs) was observed, as well as enhanced inflammatory responses (increased expression and secretion of C-reactive protein [CRP] in the liver and serum, and increased mRNA levels of cyclooxygenase-2 [NOX-2] and/or inducible nitric oxide synthase [iNOS] in the three organs). Besides, inflammatory mediators including nuclear factor of kappa B (NF-kappaB) and iNOS showed increased protein levels in the three organs after P. gingivalis infection. CONCLUSIONS: These results suggest that chronic intravenous infection with P. gingivalis in ApoE-/- mice could accelerate the development of atherosclerosis, possibly associated with mediating oxidative stress as well as inflammatory responses and disturbing the lipid profile. PMID- 29035448 TI - A Case Study in Advanced Lung Cancer Patients with Vimentin Over Expression. AB - BACKGROUND: Vimentin belongs to an intermediate filament (IF) family of proteins, mainly present in mesenchymal cells and has a crucial role in maintaining cellular integrity. Vimentin can induce epithelial to mesenchymal transition, and thus increase migration and invasion capacity of the cells. It has been shown to be a useful and reliable diagnostic and prognostic marker in several cancers including colon cancers, breast and hepatocellular cancers. Recent studies suggest that it may have a role in distant metastasis of non-small cell lung cancer (NSCLC) accounting for poor survival [1]. METHODS: The aim of the study is to assess the impact of vimentin testing as a diagnostic and prognostic marker in NSCLC. This is a case study of 12 NSCLC patients who had vimentin testing as a part of their work up over the past five years at the University of Cincinnati. A total of 12 patients with advanced lung cancer were included in this case study as they were found to have strong vimentin expression. This was correlated with overall survival of this group of patients. RESULTS: Median survival of the patients was 4.66 months. This is 7.34 months less compared to the median survival of patients with stage IV NSCLC which is reported to be 12 months. CONCLUSIONS: More studies are warranted into the use of vimentin as an emerging useful marker for early diagnosis, aggressive transformation relapse, and prognostication of NSCLC. It may have therapeutic value in NSCLC as observed in other cancers. PMID- 29035449 TI - Performance Verification of the Iris iQ200 Sprint Automated Urine Microscopy Analyzer in a Hospital Routine Laboratory. AB - BACKGROUND: Systematic performance verification is required before a laboratory can introduce a new measurement procedure for reporting results of patient testing. The aim of this study was to determine whether a new Iris iQ200 Sprint automated urine microscopy analyzer (iQ200 Sprint) could be incorporated into our routine laboratory. METHODS: A total of 421 fresh urine samples were selected from the Affiliated Hospital of Nantong University, including those from healthy individuals and those with a variety of abnormalities to ensure a wide range of results. Precision, recovery, carry-over, linearity and reference interval were verified according to well-established protocols. RESULTS: The repeatability studies found coefficients of variability (CVs) in the range of 10.53% - 20.28% for red blood cells, white blood cells, and squamous epithelial cells, while the CV for the iQ Positive Control sample was 3.23%. The relative bias was 0.5% for the iQ Positive Control sample and no carry-over was detected. Linearity was observed at concentrations of 10 - 2069.5 particles/MUL (y = 0.989x + 9.1, R2 = 0.999). The manufacturer's claimed reference interval meets the requirements for medical usefulness. CONCLUSIONS: Performance verification is needed before a clinical laboratory can introduce a new measurement procedure. The iQ200 Sprint is sufficiently precise and reliable to be applied in our clinical laboratory. PMID- 29035450 TI - Imbalance between Matrix Metalloproteinases and Tissue Inhibitors of Metalloproteinases Promotes Invasion and Metastasis of Head and Neck Squamous Cell Carcinoma. AB - BACKGROUND: The balance between collagenolysis and its inhibition is critical during extracellular matrix remodeling in head and neck squamous cell carcinoma (HNSCC). An imbalance between matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) plays a critical role in the development of tumor cell invasion and metastasis. The purpose of the study was to determine MMP-9/TIMP-1 and MMP-2/TIMP-2 ratios in the sera of patients with HNSCC in relation to clinicopathological parameters. METHODS: Serum samples from seventy patients with HNSCC were measured by ELISA, before and 2 days after surgery. Forty healthy volunteers were selected as controls. RESULTS: Preoperative MMP-9/TIMP-1 and MMP 2/TIMP-2 ratios were significantly higher in HNSCC patients than in the control group (p < 0.001 and p = 0.002, respectively). Changes in MMP-9 concentration and MMP9/TIMP-1 ratio after surgery had a negative correlation with lymph node involvement (r = - 0.35, p = 0.021 and r = - 0.37, p = 0.013), while changes in TIMP-1 had a positive one (r = 0.45, p = 0.006). Histological grade was positively correlated with the changes in circulating TIMP-2 level (r = 0.39, p = 0.021). No significant correlation was discovered between MMP-2/TIMP-2 ratio and tumor grade or any clinicopathological variables. CONCLUSIONS: Our results suggest that an imbalance between MMP-9 and TIMP-1 could play an important role in metastatic spread via lymphatic pathways of HNSCC cells. MMP-9/TIMP-1 ratio and, in particular, MMP-9, TIMP-1, TIMP-2, may represent suitable biomarkers for early diagnosis and detection of disease progression and dissemination in HNSCC patients. PMID- 29035451 TI - Investigations of the Serum Free Light Chain Ratio According to the Updated 2014 IMWG Diagnostic Criteria for Multiple Myeloma in Korean Patients with Newly Diagnosed Multiple Myeloma. PMID- 29035452 TI - Role of Cytokines in the Pathogenesis of Visceral Leishmaniasis. AB - Infection in humans with Leishmania manifests into a spectrum of diseases. The manifestations of the disease depend on the resultant evasion of the parasite to immune responses namely macrophages, which is an exclusive host of leishmania. The B cells valiantly mount antibody responses, however to no avail as the Leishmania parasites occupy the intracellular niches of the macrophages. Extensive studies have been documented on the role of cell-mediated immunity (CMI) in protection and counter survival strategies of the parasites leading to down-regulation of CMI. The present review attempts to discuss the cytokines in progression or resolution of visceral form of leishmaniasis or kala-azar, predominantly affecting the Indian subcontinent. The components/cytokine(s) responsible for the regulation of the critical balance of Th1/Th2/Th9/Th17/Treg cells has been discussed in the perspective. Therefore, any strategy involving the treatment of VL needs to consider the balance and regulation of CD4+ T cell function. PMID- 29035453 TI - Immunophenotyping of Chronic Lymphocytic Leukemia. AB - BACKGROUND: Chronic Lymphocytic Leukemia (CLL) is one of the most common diagnoses made by flow cytometry laboratories. There is no consensus on which markers need to be used in flow cytometry for accurate immunophenotyping. Herein, we investigated the role of markers used in flow cytometry in the distinction between CLL and MCL. METHODS: A total 339 recently diagnosed B lymphoproliferative patient cases were retrospectively studied for their immunophenotypical propoerties using flow cytometry. They included 306 CCL cases and 33 MCL cases. RESULTS: The positivity of CD23 was diagnostic for CLL (p < 0.001). CD22, CD79b, and FMC7 expressions were highly positive in CLL cases, but not statistically significant in making differential diagnoses between atypical CLL and MCL (p = 1.000, p = 0.431 and p = 1.000, respectively). Evaluation of CD11c, CD25, CD43, and CD38 expressions, which are included in the LPD panel but not in the matatutes scoring, revealed that CD11c, CD38, and CD43 expressions are statistically significant in the distinction of atypical CLL from MCL (p < 0.001, p < 0.001, and p < 0.001). CONCLUSIONS: We can say that CD11c, CD38, and CD43, which have been included in our lymphoproliferative disease panel, were more valuable than CD22, CD79b, and FMC7 in the diagnosis of CLL. PMID- 29035454 TI - The Relationship Between MDM2 T309G Polymorphism and Leukemia in the Chinese Population: Evidence from a Meta-Analysis. AB - BACKGROUND: Increasing numbers of studies have been carried out on the association of MDM2 T309G polymorphism with susceptibility to leukemia and have generated conflicting results. This meta-analysis updated and revaluated the possible associations between MDM2 T309G polymorphism and leukemia in the Chinese population. METHODS: The PubMed, Springer Link, Ovid, Chinese Wanfang Data Knowledge Service Platform, Chinese National Knowledge Infrastructure, and Chinese Biology Medicine were searched up to February 2017. Fixed-effect and random-effect meta-analytical techniques were conducted for the outcome measure and subgroup analyses. RESULTS: Overall, the meta-analysis demonstrated significant associations between the MDM2 T309G polymorphism and increased risk for leukemia in the Chinese population. Subgroup analyses indicated similar results in South China. As for subgroup analysis by clinical types, data suggested increased risk for chronic myeloid leukemia (CML). CONCLUSIONS: Our study suggested that MDM2 T309G polymorphism might be a low-penetrant risk factor for leukemia among Chinese. PMID- 29035455 TI - Evaluation of a Magnetic Cellulose-Based DNA Extraction System to Improve the Performance of HybriBio Human Papillomavirus Genotyping and Screening Tests for Cervical Swab Samples. AB - BACKGROUND: To ensure the accuracy of clinical human papillomavirus (HPV) testing, the nucleic acid extraction procedure should be thoroughly evaluated for each clinical sample type. Therefore, we evaluated whether the MagCore(r) Automated Nucleic Acid Extraction system (MagCore system) could improve HybriBio HPV test performance for cervical swab samples. METHODS: We compared the performance of HybriBio HPV genotyping and screening tests using samples prepared with the MagCore system and Cell Lysis Kit, which was provided by the HPV test manufacturer. RESULTS: The MagCore system extracted high quality DNA and outperformed the Cell Lysis Kit in the subsequent analysis. In terms of the HPV genotyping testing, use of the MagCore system-extracted DNA markedly increased the signal intensity compared to that of DNA extracted with the Cell Lysis Kit for low concentrations of HPV DNA. Thus, the analytical sensitivity of testing was increased approximately 10 times by using the MagCore system, and the reproducibility was also increased (97.1% vs. 88.2%). In terms of the HPV screening tests, use of the MagCore system improved the compatibility of the internal control and targets, reducing the risk of false or invalid results. The MagCore system also improved the amplification efficiency and quantification accuracy for HPV16 detection. CONCLUSIONS: We demonstrated that the performance of HybriBio HPV genotyping and screening tests can be improved by using the MagCore system. This study not only provided an alternative, robust DNA extraction method for clinical users but also reemphasized the importance of establishing a reliable DNA extraction procedure for clinical HPV testing. PMID- 29035456 TI - Circulating miR-29b and miR-424 as Prognostic Markers in Patients with Acute Cerebral Infarction. AB - BACKGROUND: Down-regulation of miR-29b and miR-424 have been observed in patients with acute cerebral infarction (ACI); however, the clinical significance of circulating miR-29b and miR-424 as prognostic markers still requires further investigation. METHODS: A total of 45 patients diagnosed with ACI and 45 healthy volunteers were enrolled in this study, and the clinical information of the patients were collected. The serum samples of the participants were collected and stored at -80 degrees C. The relative expression of miR-29b and miR-424 was determined using RT-qPCR, and the serum levels of IL-6, IL-4, TNF-alpha, and IFN gamma were measured using an enzyme-linked immunosorbent assay (ELISA) kits. The short-term prognosis of patients was evaluated using the Glasgow Outcome scale (GOS) at day 30. RESULTS: The serum levels of miR-29b and miR-424 were significantly lower in patients with ACI compared with the healthy controls (p < 0.01) and the serum level of IL-6, IL-4, and TNF-alpha were significantly up regulated in patients with ACI (p < 0.05); moreover, using the Glasgow Outcome scale (GOS) as a prognostic index, it has been proved that the serum level of both miR-29b and miR-424 were positively associated with the short-term prognosis of the patients; finally, the expression of the circulating miR-29b and miR-424 were negatively correlated with the serum level of IL-6, IL-4, and TNF-alpha. CONCLUSIONS: Lower levels of circulating miR-29b and miR-424 in patients with acute cerebral infarction may predict poor prognosis, and the expression of circulating miR-29b and miR-424 are negatively correlated with the serum level of some pro-inflammatory cytokines, suggesting that circulating miR-29b and miR-424 may have the potential to become prognostic markers and therapeutic targets for the management of acute cerebral infarction. PMID- 29035458 TI - Concordance of Mutation Detection in Circulating Tumor DNA in Early Clinical Trials Using Different Blood Collection Protocols. AB - BACKGROUND: Small fragments of tumor DNA can be found in the circulation of cancer patients, providing a noninvasive access to tumor material (liquid biopsy). Analysis of circulating tumor DNA (ctDNA) has been used for diagnosis, treatment decisions, and detection of therapy resistance, including in patients with tumors inaccessible for biopsy, making ctDNA an important alternative source of tumor material. Immediate separation of plasma is widely used in standard isolation of cell-free DNA to ensure high quality plasma DNA. However, these procedures are labor intensive and logistically challenging in a clinical setting. Here we investigate the concordance between standard blood collection for molecular analysis using immediate separation of plasma, compared to the use of collection tubes allowing for delayed processing. METHODS: In this study, we measured the fractional abundance of tumor specific mutations (BRAF p.V600E and PIK3CA p.H1047R) in ctDNA isolated from blood samples collected in either cell stabilizing Cell-Free DNA BCT tubes (delayed processing within 72 hours) or standard K3EDTA tubes (immediate processing within 15 minutes). Twenty-five blood sample pairs (EDTA/BCT) were collected from patients with advanced solid cancers enrolled in early clinical trials. RESULTS: Concordance in the fractional abundance of mutations in ctDNA isolated from blood collected in either K3EDTA or BCT tubes from patients with different solid cancers was observed. CONCLUSIONS: This study indicates that BCT tubes are preferable for collection of circulating DNA in a clinical setting due to the favorable storage and shipping conditions. PMID- 29035457 TI - Evaluation of mir-203 Expression Levels and DNA Promoter Methylation Status in Serum of Patients with Endometrial Cancer. AB - BACKGROUND: Endometrial cancer (EC) is currently considered the fourth most frequent female cancer in Europe. In an attempt to achieve an early diagnosis, many studies have identified some putative biomarkers for gynecologic cancers, including circulating microRNAs (miRs) and aberrant promoter methylation status. Previous studies which have investigated miR-203 expression profiles in EC tissues and normal endometrial tissues concluded that miR-203 is regulated by methylation promoter. The aim of this study was to investigate the expression of miR-203 and promoter methylation levels in serum of EC patients and healthy controls (HC). METHODS: Forty-five EC patients (64 +/- 12 years) and 30 HC (63 +/ 13 years) were enrolled before undergoing therapeutic procedures. RNA extraction from serum was performed with mirVana PARIS Isolation Kit (Thermo Scientific). miR expression was assessed by quantitative RT-PCR (Applied Biosystems). The expression levels of miR were normalized to miR-16 and calculated using the 2 DeltaCt method. A quantitative methylation-specific PCR (MSP) technique was used to analyze miR-203 promoter methylation status. Differences between groups were assessed by Mann-Whitney test (for continuous variables) and chi-squared test (for categorical variables), whereas the correlation was calculated using Spearman's test. The diagnostic performance of miR-203 was defined using receiver operator characteristic (ROC) curves. RESULTS: Serum expression levels of miR-203 were higher in EC patients compared to HC (p = 0.002). Aberrant miR-203 methylation was detected in 11/45 (24.4%) EC patients and in 2/30 (6.6%) HC (p = 0.046). The expression levels of miR-203 were not significantly correlated with promoter methylation status. The area under the curve of miR-203 expression was 0.71 (p = 0.002). CONCLUSIONS: The high circulating miR-203 expression levels in EC patients compared to HC confirm the role of this miR as a potential biomarker for diagnosis of EC. Aberrant miR-203 methylation assessed in the peripheral blood does not apparently reflect cancer biology. PMID- 29035459 TI - Level of Platelet Distribution Width and Outcome Prediction in Patients with Traumatic Brain Injury. AB - BACKGROUND: This study examines the clinical utility of the level of increased platelet distribution width (PDW) as a predictor of outcome in patients with traumatic brain injury. METHODS: In this retrospective study, 120 patients with traumatic brain injury (TBI) were recruited. Age, gender, PDW, and Glasgow Coma Scale (GCS) scores were measured. These patients were divided into two groups based on their 30-day outcomes. Receiver operating curves (ROCs) were generated to identify predictors of 30-day mortality. RESULTS: One hundred twenty patients with traumatic brain injury were enrolled in this study, 89 males (74.2%) and 31 females (25.8%) with a median age of 49.5 (19 - 89) years. The in-hospital mortality rate was 10.8% (n = 13). PDW levels in non-surviving patients were higher than in surviving patients. The higher the PDW, the lower the GSC score. The area under the curve (AUC) for PDW levels with regard to predicting 30-day mortality was 0.88 (95% confidence interval (CI), 0.78 to 0.97; p < 0.001). There was correlation between PDW level and GCS score (r = -0.30, 95% confidence interval (CI), - 0.46 to - 0.13; p < 0.001). CONCLUSIONS: PDW levels were associated with injury severity and mortality in patients with severe TBI. PMID- 29035460 TI - Pleural Alveolar Rhabdomyosarcoma. AB - Alveolar rhabdomyosarcoma (ARMS) commonly occurring in children and adolescents, is a rare and aggressive soft tissue malignancy. Here, a rare case of pleural ARMS is reported in a boy presenting dyspnea for two weeks. The pathology of a biopsy specimen from pleura showed ARMS. PAX3-FKHR fusion protein is positive and the PAX7-FKHR fusion protein is negative as detected by fluorescence in situ hybridization. The prognosis of this patient was poor and nonresponsive to chemotherapy. PMID- 29035461 TI - Evaluating EFEMP1 in Cerebrospinal Fluid and Serum as a Potential Diagnosis Biomarker for Meningiomas. AB - BACKGROUND: The aim of this study was to determine the cerebrospinal fluid (CSF) and serum levels of EGF containing fibulin-like extracellular matrix protein 1 (EFEMP1) in the patients with meningiomas and explore its potential as a biomarker. METHODS: Forty-five patients with meningioma, 11 of whom underwent meningioma resection, as well as 30 healthy controls were enrolled in this study. CSF and blood samples were collected preoperatively and postoperatively. Expression levels of EFEMP1 were measured by enzyme-linked immunosorbent assay (ELISA). Receiver operating characteristic (ROC) curves were used to evaluate its discriminant ability. RESULTS: CSF EFEMP1 levels were significantly higher in the CSF samples (p < 0.0001) and serum samples (p = 0.0056) of meningioma patients compared to controls. To distinguish meningioma patients from controls by CSF and serum EFEMP1 levels, ROC/AUC analysis indicated an AUC of 0.945 (sensitivity 0.933; specificity 0.833) and an AUC of 0.674 (sensitivity 0.867; specificity 0.400), respectively. Moreover, the postoperative CSF levels of EFEMP1 were significantly decreased compared to the preoperative levels (p < 0.0001). CONCLUSIONS: The present study suggested that elevated EFEMP1 levels might be a novel diagnostic biomarker for meningioma patients. PMID- 29035462 TI - CpG-ODN Stimulation in Population Screening Monoclonal B-Cell Lymphocytosis. AB - BACKGROUND: Synthetic CpG-oligodeoxynucleotides (CpG-ODN) induce proliferation in normal and malignant lymphocytes B (LyB). This effect is widely exploited in CLL conventional chromosome banding analysis (CBA), which has become reliable only after the cultivation of CLL LyB using CpG-ODN stimulation in combination with IL 2. Monoclonal B-cell lymphocytosis (MBL) differs from CLL mainly in clone size. Only cytogenetic data on recurrent chromosomal aberrations analyzed by fluorescence in situ hybridization (FISH) are available for population screening MBL (sMBL). In sMBL the clone of malignant LyB is typically below 10/uL. We compared CpGODN stimulation in healthy donors and in individuals with sMBL. METHODS: LyB and MBL LyB count were determined by flow cytometry in 15 samples from healthy subjects and 12 MBL cases. Mitotic indices were determined and CBA was done after cultivation of samples by CpG-ODN + IL2. In MBL samples, FISH analysis was performed on isolated LyB. RESULTS: MBL LyB clones in sMBL cases presented less than 1% of WBC and up to 33% of LyB. The MBL group was therefore compared to the group of healthy donors. Although normal and MBL group did not differ in WBC, overall LyB, and normal LyB count, a significantly higher mitotic index was observed in MBL samples (p = 0.0139). We were able to accomplish CBA in all samples which revealed a normal karyotype in all but one case. In this particular sMBL case FISH performed on isolated LyB showed 5% trisomy 12 which was later confirmed by CBA on CpG stimulated blood sample in 15% of metaphases. CONCLUSIONS: Our study, which was done on MBL cases obtained by population screening, confirmed that CpGODN preferentially induced proliferation in MBL LyB over normal LyB. Therefore, CBA can also be successfully accomplished in sMBL and can be used to additionally confirm clonality as well as to improve sensitivity of FISH analysis. Due to coexistence of comparable size of normal and malignant LyB, MBL can serve as a model for exvivo studying of LyB stimulation by CpG-ODN. PMID- 29035463 TI - Effect of Balanced Crystalloid, Gelatin and Hydroxyethyl Starch on Coagulation Detected by Rotational Thromboelastometry In Vitro. AB - BACKGROUND: Fluid resuscitation with crystalloid and colloid solutions is a common treatment in perioperative medicine. However, a variety of unbalanced or balanced solutions are used in clinical practice and there is still vivid debate going on regarding selection of optimal fluid with minimal negative effect on coagulation to minimize bleeding and blood transfusion requirements. The aim of the study was to investigate adverse effects of balanced crystalloids and colloids on coagulation measured by thromboelastometry in vitro. METHODS: Blood samples were obtained from healthy volunteers undergoing knee arthroscopy. Adverse effects of balanced crystalloid, hydroxyethyl starch, and gelatin were evaluated by thromboelastometry after 20% dilution of blood with the solution in vitro. Parameters of EXTEM and FIBTEM test were evaluated. RESULTS: Clotting time of EXTEM was not significantly influenced by any of the investigated solutions (p > 0.05). However, significant impairment of clot formation time of EXTEM was detected in hydroxyethyl starch and gelatin groups in comparison with controls (p < 0.05), while crystalloid did not affect this parameter significantly (p > 0.05). Similar results were found in alpha angle although significant coagulopathy effect was found only in hydroxyethyl starch samples (p < 0.05). Maximum clot firmness of EXTEM and FIBTEM tests was significantly affected by both hydroxyethyl starch and gelatin (p < 0.05) but not by crystalloid. CONCLUSIONS: Balanced crystalloid solution does not seem to have a negative influence on the coagulation process as measured by thromboelastometry. On the other hand, balanced colloids may impair propagation phase of coagulation, strength of coagulum, and level of functional fibrinogen. Hydroxyethyl starch seems to have a stronger anticoagulant effect compared to gelatin. PMID- 29035464 TI - Galectin-3 Reflects Left Atrial Function being Assessed by Cardiac Magnetic Resonance Imaging. AB - BACKGROUND: This study aims to evaluate the association between galectin-3 and left atrial function (LAF) in patients undergoing cMRI. METHODS: Patients undergoing cMRI were prospectively enrolled. Right ventricular dysfunction (< 50%) was excluded. Blood samples for biomarker measurements of galectin-3 and NT proBNP were collected at the time of cMRI examination. RESULTS: A total of 84 patients were included. Median LVEF was 59% (IQR 51 - 64%). Galectin-3 was inversely correlated with overall LAF within a multivariable linear regression model (Beta -0.27; T -2.54; p = 0.01). Galectin-3 increased significantly according to the different stages of impaired LAF (p = 0.003) and was able to discriminate both patients with impaired LAF < 55% (AUC = 0.70, p = 0.002) and LAF < 45% (AUC = 0.69, p = 0.004). In multivariable logistic regression models, galectin-3 was still associated with impaired LAF (LAF < 55%: OR = 2.64, p = 0.07; LAF < 45%: OR = 6.65, p = 0.007). CONCLUSIONS: This study demonstrates that galectin-3 is able to reflect LAF being assessed by cMRI. PMID- 29035466 TI - Friends in High Places. PMID- 29035465 TI - Enhanced Specificity of BRAF V600E Genotyping Using Wild-Type Blocker Coupled with Internal Competitive Reference in a Single Tube. AB - BACKGROUND: Mutations in the BRAF gene have been strongly associated with failure in cancer treatment using epidermal growth factor receptor (EGFR) antibodies. To better diagnose and assess the prognosis of cancer patients, mutation screening of the BRAFV600E gene should be performed prior to clinical anti-tumor drug therapy to avoid ineffective treatment. METHODS: In our previous study, we developed a real-time wild-type blocking PCR (WTB-PCR), which can amplify the mutant allele at high efficiency while simultaneously inhibiting the amplification of wild-type alleles. In order to reduce base mismatch due to the high number of cycles, as well as to monitor the total quantity of DNA added to the reaction system, an internal reference gene was co-amplified together with the target gene on the basis of WTB-PCR. RESULTS: Our results showed that when 50 - 200 ng of the DNA templates was used, this current built method (realtime quantitative clamp-based PCR technology using wild-type blocker coupled with internal competitive reference to enhance amplification specificities, named wirePCR) completely blocked the amplification of the wild-type BRAFV600E gene with detection of the mutated allele at a mutant/wild-type ratio of 1:10,000, which was in line with the sensitivity requirement for the detection of trace amounts of the mutant gene. In the colorectal biopsies from 50 patients with suspected colorectal cancer, eight patients (16%) with BRAFV600E mutations were detected using wirePCR. The allele percentage of mutations can be obtained directly from the DeltaCq between the targeted and reference genes, we demonstrated that among the V600E-positive patient samples, the percentage of BRAF DNA with the V600E mutation ranged from 24.99% to 54.31%. CONCLUSIONS: WirePCR is a rapid, simple, and low-cost quantitative analytical technique for the detection of trace amounts of mutant BRAFV600E genes in clinical samples. PMID- 29035467 TI - Patients With Two Prescription Drug Refills Likely to Become Long-Term Users PMID- 29035468 TI - Undiagnosed Sleep Apnea Costing Billions. PMID- 29035469 TI - Embryonic Mouth Formation Explained. PMID- 29035470 TI - Virtual Dental Home Model of Care Proven to Be Effective. PMID- 29035471 TI - Sugar in the Spotlight. PMID- 29035472 TI - The fate of some urologic innovations from the last century. PMID- 29035473 TI - Which is the best way to treat a stone on a flexible ureterorrenoscopy? | Opinion: Fragmentation. PMID- 29035475 TI - Editorial Comment: Laparoscopic pectopexy: initial experience of single center with a new technique for apical prolapse surgery. PMID- 29035474 TI - Which is the best way to treat a stone on a flexible ureterorrenoscopy? | Opinion: Dusting. PMID- 29035476 TI - The clinical trials on gamma globulin for polio: victims of marketing success PMID- 29035477 TI - Fructose and Nonalcoholic Fatty Liver Disease PMID- 29035478 TI - Understanding the Impact of Added Sugar Consumption on Risk for Type 2 Diabetes. AB - The association between dietary sugar and type 2 diabetes (T2D) islikely mediated by the unregulated hepatic metabolism of fructose, which promoteshepatic and whole-body insulin resistance. Experimental evidence from clinicalstudies that utilize sensitive methods to test the effects of added sugar on insulinsensitivity is required. Establishing a causal link between added sugar and insulinresistance will help to stimulate health policies that target the reduction of addedsugar consumption and T2D prevention. PMID- 29035479 TI - Advocating for Soda Taxes: How Oral Health Professionals Fit In. AB - Our recent analysis of how soda tax debates appear in the newsrevealed that oral health professionals seldom appear. By elevating their expert voices,oral health practitioners can contribute new and salient arguments for soda taxesto the public discourse and help advance public policy that improves oral healthoutcomes. We propose media advocacy strategies that oral health professionals canuse to increase their visibility in the news to make the case for soda taxes. PMID- 29035481 TI - Understanding the Role of the Better Business Bureau. PMID- 29035482 TI - Nitrous Oxide Safe Practices. PMID- 29035483 TI - Timely Referrals--Our Ethical Obligations to Our Colleagues. PMID- 29035484 TI - Tech Trends. ILIFE V5s Robot Vacuum Cleaner. PMID- 29035485 TI - Tech Trends. Truebill. PMID- 29035493 TI - Medical Devices; Immunology and Microbiology Devices; Classification of the Nucleic Acid-Based Device for the Amplification, Detection, and Identification of Microbial Pathogens Directly From Whole Blood Specimens. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the nucleic acid based device for the amplification, detection, and identification of microbial pathogens directly from whole blood specimens 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 nucleic acid-based device for the amplification, detection, and identification of microbial pathogens directly from whole blood specimens' 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- 29035494 TI - Medical Devices; Immunology and Microbiology Devices; Classification of the Automated Image Assessment System for Microbial Colonies on Solid Culture Media. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the automated image assessment system for microbial colonies on solid culture media 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 automated image assessment system for microbial colonies on solid culture media'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- 29035495 TI - Medical Devices; Gastroenterology-Urology Devices; Classification of the Enzyme Packed Cartridge. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the enzyme packed cartridge 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 enzyme packed cartridge'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- 29035496 TI - Schedules of Controlled Substances: Placement of AB-CHMINACA, ABPINACA and THJ 2201 Into Schedule I. Final rule. AB - With the issuance of this final rule, the Drug Enforcement Administration places N-(1-amino-3-methyl-1-oxobutan-2-yl)-1-(cyclohexylmethyl)-1H-indazole-3 carboxamide (AB-CHMINACA), N-(1-amino-3-methyl-1-oxobutan-2-yl)-1-pentyl-1H indazole-3-carboxamide (AB-PINACA), and [1-(5-fluoropentyl)-1H-indazol-3 yl](naphthalen-1-yl)methanone (THJ-2201), including their salts, isomers, and salts of isomers whenever the existence of such salts, isomers, and salts of isomers is possible, into schedule I of the Controlled Substances Act. This scheduling action is pursuant to the Controlled Substances Act which requires that such actions be made on the record after opportunity for a hearing through formal rulemaking. This rule continues the imposition of the regulatory controls and administrative, civil, and criminal sanctions applicable to schedule I controlled substances on persons who handle (manufacture, distribute, import, export, engage in research, conduct instructional activities or chemical analysis, or possess), or propose to handle AB-CHMINACA, AB-PINACA and THJ-2201. PMID- 29035498 TI - Highly Stable Molybdenum Disulfide Protected Silicon Photocathodes for Photoelectrochemical Water Splitting. AB - Developing materials, interfaces, and devices with improved stability remains one of the key challenges in the field of photoelectrochemical water splitting. As a barrier to corrosion, molybdenum disulfide is a particularly attractive protection layer for photocathodes due to its inherent stability in acid, the low permeability of its basal planes, and the excellent hydrogen evolution reaction (HER) activity the MoS2 edge. Here, we demonstrate a stable silicon photocathode containing a protecting layer consisting of molybdenum disulfide, molybdenum silicide, and silicon oxide which operates continuously for two months. We make comparisons between this system and another molybdenum sulfide-silicon photocathode embodiment, taking both systems to catastrophic failure during photoelectrochemical stability measurements and exploring mechanisms of degradation. X-ray photoelectron spectroscopy and transmission electron microscopy provide key insights into the origins of stability. PMID- 29035497 TI - Conformational Dynamics of DNA Binding and Cas3 Recruitment by the CRISPR RNA Guided Cascade Complex. AB - Bacteria and archaea rely on CRISPR (clustered regularly interspaced short palindromic repeats) RNA-guided adaptive immune systems for sequence specific elimination of foreign nucleic acids. In Escherichia coli, short CRISPR-derived RNAs (crRNAs) assemble with Cas (CRISPR-associated) proteins into a 405 kilodalton multisubunit surveillance complex called Cascade (CRISPR-associated complex for antiviral defense). Cascade binds foreign DNA complementary to the crRNA guide and recruits Cas3, a trans-acting nuclease-helicase required for target degradation. Structural models of Cascade have captured static snapshots of the complex in distinct conformational states, but conformational dynamics of the 11-subunit surveillance complex have not been measured. Here, we use hydrogen deuterium exchange coupled to mass spectrometry (HDX-MS) to map conformational dynamics of Cascade onto the three-dimensional structure. New insights from structural dynamics are used to make functional predictions about the mechanisms of the R-loop coordination and Cas3 recruitment. We test these predictions in vivo and in vitro. Collectively, we show how mapping conformational dynamics onto static 3D-structures adds an additional dimension to the functional understanding of this biological machine. PMID- 29035499 TI - Hierarchical Self-Assembly of Cyclodextrin and Dimethylamino-Substituted Arylene Ethynylene on N-doped Graphene for Synergistically Enhanced Electrochemical Sensing of Dihydroxybenzene Isomers. AB - An electrochemically active sensing nanomaterial (denoted as CD-MPEA-NG) has been successfully constructed by an hierarchical self-assembly of cyclodextrin (CD) and N,N-dimethyl-4-(phenylethynyl)aniline (MPEA) on N-doped graphene (NG) in a low-temperature hydrothermal process. The unique nanostructure of the high performance CD-MPEA-NG was confirmed by utilizing Fourier transform infrared spectra, an X-ray diffractometer, and differential pulse voltammetry (DPV), etc. In particular, the method of density functional theory with dispersion energy (DFT-D) of wB97XD/LanL2DZ was employed to optimize and describe the face-to-face packing structure of heterodimers of NG and MPEA. The CD-MPEA-NG sensor exhibits highly sensitive performance toward dihydroxybenzene isomers, without relying on expensive noble metal or a complicated preparation process. The experimental results demonstrate that given the synergistic effect of NG and MPEA as a coupled sensing platform, CD as a supramolecular cavity can significantly enhance the electrochemical response. The detection limits (S/N = 3) for catechol (CT), resorcinol (RS), and hydroquinone (HQ) are 0.008, 0.018, and 0.011 MUM by DPV, respectively. Besides, the CD-MPEA-NG sensor shows a superb anti-interference, reproducibility, and stability, and satisfactory recovery aimed at detecting isomers in Nanjing River water. The encouraging performance as well as simplified preparation approach strongly support the CD-MPEA-NG sensor is a fascinating electrode to develop as a seamless and sensitive electroanalytical technique. PMID- 29035500 TI - Reliable Multistate Data Storage with Low Power Consumption by Selective Oxidation of Pyramid-Structured Resistive Memory. AB - Multilevel data storage using resistive random access memory (RRAM) has attracted significant attention for addressing the challenges associated with the rapid advances in information technologies. However, it is still difficult to secure reliable multilevel resistive switching of RRAM due to the stochastic and multiple formation of conductive filaments (CFs). Herein, we demonstrate that a single CF, derived from selective oxidation by a structured Cu active electrode, can solve the reliability issue. High-quality pyramidal Cu electrodes with a sharp tip are prepared via the template-stripping method. Morphology-dependent surface energy facilitates the oxidation of Cu atoms at the tip rather than in other regions, and the tip-enhanced electric fields can accelerate the transport of the generated Cu ions. As a result, CF growth occurs mainly at the tip of the pyramidal electrode, which is confirmed by high-resolution electron microscopy and elemental analysis. The RRAM exhibits highly uniform and low forming voltages (the average forming voltage and its standard deviation for 20 pyramid-based RRAMs are 0.645 and 0.072 V, respectively). Moreover, all multilevel resistance states for the RRAMs are clearly distinguished and show narrow distributions within 1 order of magnitude, leading to reliable cell-to-cell performance for MLC operation. PMID- 29035501 TI - Trapping Behaviors of Photogenerated Electrons on the (110), (101), and (221) Facets of SnO2: Experimental and DFT Investigations. AB - Spatial separation of photogenerated charges between different crystal facets has been observed in some semiconductor photocatalysts; however, the charge separation mechanism is still ambiguous. As a characteristic parameter of crystal facet, surface energy may be a crucial factor to dictate the flow of photogenerated charges. In this work, the relationship between surface energy and the flow mode of photogenerated charges is investigated by using model photocatalysts, including lance-shaped SnO2 particles and dodecahedral SnO2 particles. The former are enclosed by two kinds of crystal facets with a big gap in surface energy, while the latter are composed of two types of crystal facets with nearly equal surface energy. However, the experimental results exhibit that the photogenerated electrons flow to all exposed crystal facets randomly in both two kinds of SnO2 nanocrystals, which is opposite to what has been observed in extensively investigated semiconductor photocatalysts including TiO2, SrTiO3, BiVO4, BiOCl, and Cu2O. Our results disqualify surface energy as an appropriate descriptor of preferential charge flow. Furthermore, the experimental results are confirmed by trapping energies and work functions calculated with the first principles methods, which are proved to be more relevant parameters for describing the charge flow direction. Additionally, the trapping sites on each crystal facet are determined by charge analysis. PMID- 29035502 TI - Binding Mechanism of the Model Charged Dye Carboxyfluorescein to Hyaluronan/Polylysine Multilayers. AB - Biopolymer-based multilayers become more and more attractive due to the vast span of biological application they can be used for, e.g., implant coatings, cell culture supports, scaffolds. Multilayers have demonstrated superior capability to store enormous amounts of small charged molecules, such as drugs, and release them in a controlled manner; however, the binding mechanism for drug loading into the multilayers is still poorly understood. Here we focus on this mechanism using model hyaluronan/polylysine (HA/PLL) multilayers and a model charged dye, carboxyfluorescein (CF). We found that CF reaches a concentration of 13 mM in the multilayers that by far exceeds its solubility in water. The high loading is not related to the aggregation of CF in the multilayers. In the multilayers, CF molecules bind to free amino groups of PLL; however, intermolecular CF-CF interactions also play a role and (i) endow the binding with a cooperative nature and (ii) result in polyadsorption of CF molecules, as proven by fitting of the adsorption isotherm using the BET model. Analysis of CF mobility in the multilayers by fluorescence recovery after photobleaching has revealed that CF diffusion in the multilayers is likely a result of both jumping of CF molecules from one amino group to another and movement, together with a PLL chain being bound to it. We believe that this study may help in the design of tailor-made multilayers that act as advanced drug delivery platforms for a variety of bioapplications where high loading and controlled release are strongly desired. PMID- 29035504 TI - Chromophore-Catalyst Assembly for Water Oxidation Prepared by Atomic Layer Deposition. AB - Visible-light-driven water splitting was investigated in a dye sensitized photoelectrosynthesis cell (DSPEC) based on a photoanode with a phosphonic acid derivatized donor-pi-acceptor (D-pi-A) organic chromophore, 1, and the water oxidation catalyst [Ru(bda)(4-O(CH2)3P(O3H2)2-pyr)2], 2, (pyr = pyridine; bda = 2,2'-bipyridine-6,6'-dicarboxylate). The photoanode was prepared by using a layering strategy beginning with the organic dye anchored to an FTO|core/shell electrode, atomic layer deposition (ALD) of a thin layer (<1 nm) of TiO2, and catalyst binding through phosphonate linkage to the TiO2 layer. Device performance was evaluated by photocurrent measurements for core/shell photoanodes, with either SnO2 or nanoITO core materials, in acetate-buffered, aqueous solutions at pH 4.6 or 5.7. The absolute magnitudes of photocurrent changes with the core material, TiO2 spacer layer thickness, or pH, observed photocurrents were 2.5-fold higher in the presence of catalyst. The results of transient absorption measurements and DFT calculations show that electron injection by the photoexcited organic dye is ultrafast promoted by electronic interactions enabled by orientation of the dye's molecular orbitals on the electrode surface. Rapid injection is followed by recombination with the oxidized dye which is 95% complete by 1.5 ns. Although chromophore decomposition limits the efficiency of the DSPEC devices toward O2 production, the flexibility of the strategy presented here offers a new approach to photoanode design. PMID- 29035503 TI - Comparison between Short and Long Echo Time Magnetic Resonance Spectroscopic Imaging at 3T and 7T for Evaluating Brain Metabolites in Patients with Glioma. AB - Three-dimensional proton magnetic resonance spectroscopic imaging (MRSI) is a powerful non-invasive tool for characterizing spatial variations in metabolic profiles for patients with glioma. Metabolic parameters obtained using this technique have been shown to predict treatment response, disease progression, and transformation to a more malignant phenotype. The availability of ultra-high field MR systems has the potential to improve the characterization of metabolites. The purpose of this study was to compare the metabolite profiles acquired with conventional long echo time (TE) MRSI at 3T with those obtained with short TE MRSI at 3T and 7T in patients with glioma. The data acquisition parameters were optimized separately for each echo time and field strength to obtain volumetric coverage within clinically feasible data acquisition times of 5 10 min. While a higher field strength did provide better detection of metabolites with overlapping peaks, spatial coverage was reduced and the use of inversion recovery to reduce lipid precluded the detection of lipid in regions of necrosis. For serial evaluation of large, heterogeneous lesions, the use of 3T short TE MRSI may thus be preferred. Despite the limited number of metabolites that it is able to detect, the use of 3T long TE MRSI gives the best contrast in choline/N acetyl aspartate between normal appearing brain and tumor and also allows the separate detection of lactate and lipid. It may therefore be preferred for serial evaluation of patients with high-grade glioma and for detection of malignant transformation in patients with low-grade glioma. PMID- 29035505 TI - High Oxygen Reduction Reaction Performances of Cathode Materials Combining Polyoxometalates, Coordination Complexes, and Carboneous Supports. AB - A series of carbonaceous-supported precious-metal-free polyoxometalate (POM) based composites which can be easily synthesized on a large scale was shown to act as efficient cathode materials for the oxygen reduction reaction (ORR) in neutral or basic media via a four-electron mechanism with high durability. Moreover, exploiting the versatility of the considered system, its activity was optimized by the judicious choice of the 3d metals incorporated in the {(PW9)2M7} (M = Co, Ni) POM core, the POM counterions and the support (thermalized triazine based frameworks (TTFs), fluorine-doped TTF (TTF-F), reduced graphene oxide, or carbon Vulcan XC-72. In particular, for {(PW9)2Ni7}/{Cu(ethylenediamine)2}/TTF-F, the overpotential required to drive the ORR compared well with those of Pt/C. This outstanding ORR electrocatalytic activity is linked with two synergistic effects due to the binary combination of the Cu and Ni centers and the strong interaction between the POM molecules and the porous and highly conducting TTF-F framework. To our knowledge, {(PW9)2Ni7}/{Cu(ethylenediamine)2}/TTF-F represents the first example of POM-based noble-metal-free ORR electrocatalyst possessing both comparable ORR electrocatalytic activity and much higher stability than that of Pt/C in neutral medium. PMID- 29035506 TI - Development and Evaluation of a Water-Based Flame Retardant Spray Coating for Cotton Fabrics. AB - In this Research Article, we report on the development of water-based flame retardant coating based on phospho-nitrogen combination for cotton fabrics. A one step spray-on process was employed to coat the fabrics by taking advantage of the spontaneous reaction between para-phenylenediamine (PDA) and tetrakis(hydroxymethyl)phosphonium chloride (THPC) resulting in an instantaneous precipitation of poly[1,4-diaminophenylene-tris(dimethyl hydroxymethyl)phosphine] (PApP) on the fabric surface. The effectiveness of PApP in improving the flame retardant properties like ignition resistance and lateral flame spread were evaluated in accordance with ASTM D6413 and BS EN ISO 15025 flammability tests. Despite the early (thermal) decomposition onset for coated fabrics under both oxidative and pyrolytic conditions, remarkably, self-extinguishing behavior (<3 s) without any lateral flame spread was observed. Possible reaction scheme was also proposed to correlate flame retardant mechanism of the coated fabrics with the observations. Additional analysis via pyrolysis combustion flow calorimetry and vertical flame testing before and after washing showed that flame retardant efficiency did decrease with washing, but the overall performance was still promising. PMID- 29035507 TI - Sequential Delivery of Doxorubicin and Zoledronic Acid to Breast Cancer Cells by CB[7]-Modified Iron Oxide Nanoparticles. AB - Drug-loaded magnetic nanoparticles were synthesized and used for the sequential delivery of the antiresorptive agent zoledronic acid (Zol) and the cytotoxic drug doxorubicin (Dox) to breast cancer cells (MCF-7). Zol was attached to bare iron oxide nanoparticles (IONPs) via phosphonate coordination to form Z-NPs. The unbound imidazole of Zol was then used to complex the organic macrocycle CB[7] to obtain CZ-NPs. Dox was complexed to the CZ-NPs to form the fully loaded particles (DCZ-NPs), which were stable in solution at 37 degrees C and physiological pH (7.4). Fluorescence spectroscopy established that Dox is released in solution from DCZ-NPs suddenly (i) when the particles are subjected to magnetically induced heating to 42 degrees C at low pH (5.0) and (ii) in the presence of glutathione (GSH). Mass spectrometry indicated that Zol is released slowly in solution at low pH after Dox release. Magnetic measurements with a magnetic reader revealed that DCZ-NPs are internalized preferentially by MCF-7 cells versus nonmalignant cells (HEK293). Zol and Dox acted synergistically when delivered by the particles. DCZ-NPs caused a decrease in the viability of MCF-7 cells that was greater than the net decrease caused when the drugs were added to the cells individually at concentrations equivalent to those delivered by the particles. MCF-7 cells were treated with DCZ-NPs and subjected to an alternating magnetic field (AMF) which, with the nanoparticles present, raised the temperature of the cells and triggered the intracellular release of Dox, as indicated by fluorescence activated cell sorting (FACS). The cytotoxic effects of the DCZ-NPs on MCF-7 cells were enhanced 10-fold by AMF-induced heating. DCZ-NPs were also able to completely inhibit MCF-7 cell adhesion and invasion in vitro, indicating the potential of the particles to act as antimetastatic agents. Together these results demonstrate that DCZ-NPs warrant development as a system for combined chemo- and thermo-therapeutic treatment of cancer. PMID- 29035508 TI - Three-Dimensionally Hierarchical Ni/Ni3S2/S Cathode for Lithium-Sulfur Battery. AB - Lithium-sulfur (Li-S) batteries have attracted interest as a promising energy storage technology due to their overwhelming advantages such as high energy density and low cost. However, their commercial success is impeded by deterioration of sulfur utilization, significant capacity fade, and poor cycle life, which are principally originated from the severe shuttle effect in relation to the dissolution and migration of lithium polysulfides. Herein, we proposed an effective and facile strategy to anchor the polysulfides and improve sulfur loading by constructing a three-dimensionally hierarchical Ni/Ni3S2/S cathode. This self-supported hybrid architecture is sequentially fabricated by the partial sulfurization of Ni foam by a mild hydrothermal process, followed by physical loading of elemental sulfur. The incorporation of Ni3S2, with high electronic conductivity and strong polysulfide adsorption capability, can not only empower the cathode to alleviate the shuttle effect, but also afford a favorable electrochemical environment with lower interfacial resistance, which could facilitate the redox kinetics of the anchored polysulfides. Consequently, the obtained Ni/Ni3S2/S cathode with a sulfur loading of ~4.0 mg/cm2 demonstrated excellent electrochemical characteristics. For example, at high current density of 4 mA/cm2, this thick cathode demonstrated a discharge capacity of 441 mAh/g at the 150th cycle. PMID- 29035509 TI - Positron Emission Tomography Assessment of the Intranasal Delivery Route for Orexin A. AB - Intranasal drug delivery is a noninvasive drug delivery route that can enhance systemic delivery of therapeutics with poor oral bioavailability by exploiting the rich microvasculature within the nasal cavity. The intranasal delivery route has also been targeted as a method for improved brain uptake of neurotherapeutics, with a goal of harnessing putative, direct nose-to-brain pathways. Studies in rodents, nonhuman primates, and humans have pointed to the efficacy of intranasally delivered neurotherapeutics, while radiolabeling studies have analyzed brain uptake following intranasal administration. In the present study, we employed carbon-11 radioactive methylation to assess the pharmacokinetic mechanism of intranasal delivery of Orexin A, a native neuropeptide and prospective antinarcoleptic drug that binds the orexin receptor 1. Using physicochemical and pharmacological analysis, we identified the methylation sites and confirmed the structure and function of methylated Orexin A (CH3-Orexin A) prior to monitoring its brain uptake following intranasal administration in rodent and nonhuman primate. Through positron emission tomography (PET) imaging of [11C]CH3-Orexin A, we determined that the brain exposure to Orexin A is poor after intranasal administration. Additional ex vivo analysis of brain uptake using [125I]Orexin A indicated intranasal administration of Orexin A affords similar brain uptake when compared to intravenous administration across most brain regions, with possible increased brain uptake localized to the olfactory bulbs. PMID- 29035511 TI - Tuning the Multifunctionality of Iron Oxide Nanoparticles Using Self-Assembled Mixed Lipid Layers. AB - We present an approach to tuning the multifunctionality of iron oxide nanoparticles (IONs) using mixed self-assembled monolayers of cationic lipid and anionic polyethylene glycol (PEG) lipid. By forming stable, monodispersed lipid coated IONs (L-IONs) through a solvent-exchange technique, we were able to demonstrate the relationship between surface charge, the magnetic transverse relaxivity (r2 from T2-weighted images), and the binding capacity of small interfering ribonucleic acids (siRNAs) as a function of the cationic-to-anionic (PEG) lipid ratio. These properties were controlled by the cationic charge and the PEG conformation; relaxivity and siRNA binding could be varied in the mushroom and brush regimes but not at high brush densities. In vitro results combining cell viability, uptake, and transfection efficiency using HeLa cells suggest that the functional physicochemical and biological properties of L-IONs may be best achieved using catanionic lipid coatings near equimolar ratios of cationic to anionic PEG-lipids. PMID- 29035512 TI - Amperometric Detection of Sub-ppm Formaldehyde Using Single-Walled Carbon Nanotubes and Hydroxylamines: A Referenced Chemiresistive System. AB - We report amperometric detection of formaldehyde (HCHO) using hydroxylamine hydrochloride and single-walled carbon nanotubes (SWCNTs). Hydroxylamine hydrochloride reacts with HCHO to emit HCl vapor, which injects a hole carrier into semiconducting SWCNTs. The increase of conductivity in SWCNTs is easily monitored using an ohmmeter. The debundling of SWCNTs with a metallo supramolecular polymer (MSP) increased the active surface area in the SWCNTs network, leading to excellent sensitivity to HCHO with a limit of detection (LoD) of 0.016 ppm. The response of sensor is reversible, and the sensor is reusable. The selectivity to HCHO is 105-106 times higher than interferences with other volatiles such as water, methanol, and toluene. Moreover, false-positive responses caused by a significant variation of humidity and/or temperature are successfully discriminated from true-positive responses by using two sensors, one with and the other without hydroxylamine hydrochloride, in a referenced system. PMID- 29035510 TI - CRISPRi and CRISPRa Screens in Mammalian Cells for Precision Biology and Medicine. AB - Next-generation DNA sequencing technologies have led to a massive accumulation of genomic and transcriptomic data from patients and healthy individuals. The major challenge ahead is to understand the functional significance of the elements of the human genome and transcriptome, and implications for diagnosis and treatment. Genetic screens in mammalian cells are a powerful approach to systematically elucidating gene function in health and disease states. In particular, recently developed CRISPR/Cas9-based screening approaches have enormous potential to uncover mechanisms and therapeutic strategies for human diseases. The focus of this review is the use of CRISPR interference (CRISPRi) and CRISPR activation (CRISPRa) for genetic screens in mammalian cells. We introduce the underlying technology and present different types of CRISPRi/a screens, including those based on cell survival/proliferation, sensitivity to drugs or toxins, fluorescent reporters, and single-cell transcriptomes. Combinatorial screens, in which large numbers of gene pairs are targeted to construct genetic interaction maps, reveal pathway relationships and protein complexes. We compare and contrast CRISPRi and CRISPRa with alternative technologies, including RNA interference (RNAi) and CRISPR nuclease-based screens. Finally, we highlight challenges and opportunities ahead. PMID- 29035513 TI - When Heterotrimeric G Proteins Are Not Activated by G Protein-Coupled Receptors: Structural Insights and Evolutionary Conservation. AB - Heterotrimeric G proteins are signal-transducing switches conserved across eukaryotes. In humans, they work as critical mediators of intercellular communication in the context of virtually any physiological process. While G protein regulation by G protein-coupled receptors (GPCRs) is well-established and has received much attention, it has become recently evident that heterotrimeric G proteins can also be activated by cytoplasmic proteins. However, this alternative mechanism of G protein regulation remains far less studied than GPCR-mediated signaling. This Viewpoint focuses on recent advances in the characterization of a group of nonreceptor proteins that contain a sequence dubbed the "Galpha-binding and -activating (GBA) motif". So far, four proteins present in mammals [GIV (also known as Girdin), DAPLE, CALNUC, and NUCB2] and one protein in Caenorhabditis elegans (GBAS-1) have been described as possessing a functional GBA motif. The GBA motif confers guanine nucleotide exchange factor activity on Galphai subunits in vitro and activates G protein signaling in cells. The importance of this mechanism of signal transduction is highlighted by the fact that its dysregulation underlies human diseases, such as cancer, which has made the proteins attractive new candidates for therapeutic intervention. Here we discuss recent discoveries on the structural basis of GBA-mediated activation of G proteins and its evolutionary conservation and compare them with the better studied mechanism mediated by GPCRs. PMID- 29035514 TI - Structure and Electronic Properties of Interface-Confined Oxide Nanostructures. AB - The controlled fabrication of nanostructures has often used a substrate template to mediate and control the growth kinetics. Electronic substrate-mediated interactions have been demonstrated to guide the assembly of organic molecules or the nucleation of metal atoms but usually at cryogenic temperatures, where the diffusion has been limited. Combining STM, STS, and DFT studies, we report that the strong electronic interaction between transition metals and oxides could indeed govern the growth of low-dimensional oxide nanostructures. As a demonstration, a series of FeO triangles, which are of the same structure and electronic properties but with different sizes (side length >3 nm), are synthesized on Pt(111). The strong interfacial interaction confines the growth of FeO nanostructures, leading to a discrete size distribution and a uniform step structure. Given the same interfacial configuration, as-grown FeO nanostructures not only expose identical edge/surface structure but also exhibit the same electronic properties, as manifested by the local density of states and local work functions. We expect the interfacial confinement effect can be generally applied to control the growth of oxide nanostructures on transition metal surfaces. These oxide nanostructures of the same structure and electronic properties are excellent models for studies of nanoscale effects and applications. PMID- 29035515 TI - Isoform-Specific Substrate Inhibition Mechanism of Human Tryptophan Hydroxylase. AB - Tryptophan hydroxylase (TPH) catalyzes the initial and rate-limiting step in the biosynthesis of serotonin, which is associated with a variety of disorders such as depression and irritable bowel syndrome. TPH exists in two isoforms: TPH1 and TPH2. TPH1 catalyzes the initial step in the synthesis of serotonin in the peripheral tissues, while TPH2 catalyzes this step in the brain. In this study, the steady-state kinetic mechanism for the catalytic domain of human TPH1 has been determined. Varying substrate tryptophan (Trp) and tetrahydrobiopterin (BH4) results in a hybrid Ping Pong-ordered mechanism in which the reaction can either occur through a Ping Pong or a sequential mechanism depending on the concentration of tryptophan. The catalytic domain of TPH1 shares a sequence identity of 81% with TPH2. Despite the high sequence identity, differences in the kinetic parameters of the isoforms have been identified; i.e., only TPH1 displays substrate tryptophan inhibition. This study demonstrates that the difference can be traced to an active site loop which displays different properties in the TPH isoforms. Steady-state kinetic results of the isoforms, and variants with point mutations in a loop lining the active site, show that the kinetic parameters of only TPH1 are significantly changed upon mutations. Mutations in the active site loop of TPH1 result in an increase in the substrate inhibition constant, Ki, and therefore turnover rate. Molecular dynamics simulations reveal that this substrate inhibition mechanism occurs through a closure of the cosubstrate, BH4, binding pocket, which is induced by Trp binding. PMID- 29035516 TI - Potential Metabolic Activation of Representative Alkylated Polycyclic Aromatic Hydrocarbons 1-Methylphenanthrene and 9-Ethylphenanthrene Associated with the Deepwater Horizon Oil Spill in Human Hepatoma (HepG2) Cells. AB - Exposure to petrogenic polycyclic aromatic hydrocarbons (PPAHs) is the major human health hazard associated with the Deepwater Horizon oil spill. Alkylated phenanthrenes are the most abundant PPAHs present in the crude oil and could contaminate the food chain. We describe the metabolism of a C1-phenanthrene regioisomer 1-methylphenanthrene (1-MP) and a C2-phenanthrene regioisomer 9 ethylphenanthrene (9-EP) in human HepG2 cells. The structures of the metabolites were identified by HPLC-UV-fluorescence detection and LC-MS/MS. Side chain hydroxylation of 1-MP and 9-EP was observed as the major metabolic pathway. The formation of 1-(hydroxymethyl)-phenanthrene was confirmed by reference to an authentic synthetic standard. However, formation of the bioactivated sulfate was not detected. Tetraols were also identified as signature metabolites of 1-MP and 9-EP, indicating that metabolic activation occurred via the diol-epoxide pathway. O-Monosulfonated-catechols were discovered as signature metabolites of the o quinone pathway of metabolic activation of 1-MP and 9-EP, respectively. The identification of O-monosulfonated-catechols supports the metabolic activation of 1-MP and 9-EP by P450 and AKR isozymes followed by metabolic detoxification of the o-quinone through interception of redox cycling by phase II isozymes. The signature metabolites identified could be used as biomarkers of human exposure to 1-MP and 9-EP resulting from oil spills. PMID- 29035517 TI - Response to Comment on "Resource Footprints are Good Proxies of Environmental Damage". PMID- 29035518 TI - Manipulation and Assessment of Charge and Spin Delocalization in Mixed-Valent Triarylamine-Vinylruthenium Conjugates. AB - Triarylamine-vinylruthenium conjugates (4-RC6H4)2N{C6H4-4-CH?CHRu(CO)Cl(PiPr3)2}, with R = CHO (1-CHO), C(?O)Me (1-Ac), COOMe (1-E), and Me (1-Me), have been prepared and investigated in their neutral, mono- and dioxidized states by cyclic voltammetry, IR, and UV/vis/near-infrared spectroelectrochemistry, electron paramagnetic resonance spectroscopy, and quantum-chemical calculations. Electron withdrawing substituents at the triarylamine moiety shift the charge and spin density toward the more electron-rich vinylruthenium site in comparison to the 4 OMe-substituted triarylamine-vinylruthenium conjugate 1-OMe. A more asymmetric charge distribution changes the intense vibrationally structured intervalence charge-transfer (IVCT) band of completely delocalized, mixed-valent (MV) 1-OMe+ to a weaker, highly asymmetric, nonsolvatochromic band with significantly smaller bandwidth at the low-energy side. The temperature dependence of the IVCT band of the formyl derivative 1-CHO+ proves that vibrational coupling of the IVCT transition to a symmetrical vibration is the underlying reason for band skewing. All of our results indicate that the MV radical cations remain electronically strongly coupled despite an increasingly stronger bias of the highest occupied molecular orbital to the vinylruthenium entity. Moreover, the dications of these complexes were found to be paramagnetic, which makes them rare examples of compounds that combine strong electronic coupling in the cationic MV state with paramagnetism of the dications. PMID- 29035519 TI - Hydrothermally Activated Graphene Fiber Fabrics for Textile Electrodes of Supercapacitors. AB - Carbon textiles are promising electrode materials for wearable energy storage devices owing to their conductive, flexible, and lightweight features. However, there still lacks a perfect choice for high-performance carbon textile electrodes with sufficient electrochemical activity. Graphene fiber fabrics (GFFs) are newly discovered carbon textiles, exhibiting various attractive properties, especially a large variability on the microstructure. Here we report the fabrication of hierarchical GFFs with significantly enlarged specific surface area using a hydrothermal activation strategy. By carefully optimize the activation process, the hydrothermally activated graphene fiber fabrics (HAGFFs) could achieve an areal capacitance of 1060 mF cm-2 in a very thin thickness (150 MUm) and the capacitance is easily magnified by overlaying several layers of HAGFFs, even up to a record value of 7398 mF cm-2. Meanwhile, a good rate capability and a long cycle life are also attained. As compared with other carbon textiles, including the commercial carbon fiber cloths, our HAGFFs present much better capacitive performance. Therefore, the mechanically stable, flexible, conductive, and highly active HAGFFs have provided an option for high-performance textile electrodes. PMID- 29035520 TI - Modeling Remineralization of Desalinated Water by Micronized Calcite Dissolution. AB - A widely used process for remineralization of desalinated water consists of dissolution of calcite particles by flow of acidified desalinated water through a bed packed with millimeter-size calcite particles. An alternative process consists of calcite dissolution by slurry flow of micron-size calcite particles with acidified desalinated water. The objective of this investigation is to provide theoretical models enabling design of remineralization by calcite slurry dissolution with carbonic and sulfuric acids. Extensive experimental results are presented displaying the effects of acid concentration, slurry feed concentration, and dissolution contact time. The experimental data are shown to be in agreement within less than 10% with theoretical predictions based on the simplifying assumption that the slurry consists of uniform particles represented by the surface mean diameter of the powder. Agreement between theory and experiment is improved by 1-8% by taking into account the powder size distribution. Apart from the practical value of this work in providing a hitherto lacking design tool for a novel technology. The paper has the merit of being among the very few publications providing experimental confirmation to the theory describing reaction kinetics in a segregated flow system. PMID- 29035521 TI - Direct Assembly of Magnetic Janus Particles at a Droplet Interface. AB - Self-assembly of nanoparticles at fluid-fluid interfaces is a promising route to fabricate functional materials from the bottom-up. However, directing and controlling particles into highly tunable and predictable structures, while essential, is a challenge. We present a liquid interface assisted approach to fabricate nanoparticle structures with tunable properties. To demonstrate its feasibility, we study magnetic Janus particles adsorbed at the interface of a spherical droplet placed on a substrate. With an external magnetic field turned on, a single particle moves to the location where its position vector relative to the droplet center is parallel to the direction of the applied field. Multiple magnetic Janus particles arrange into reconfigurable hexagonal lattice structures and can be directed to assemble at desirable locations on the droplet interface by simply varying the magnetic field direction. We develop an interface energy model to explain our observations, finding excellent agreement. Finally, we demonstrate that the external magnetic field allows one to tune the particle deposition pattern obtained when the droplet evaporates. Our results have implications for the fabrication of varied nanostructures on substrates for use in nanodevices, organic electronics, or advanced display, printing, and coating applications. PMID- 29035522 TI - Cobalt Ion Promoted Redox Cascade: A Route to Spiro Oxazine-Oxazepine Derivatives and a Dinuclear Cobalt(III) Complex of an N-(1,4-Naphthoquinone)-o-aminophenol Derivative. AB - The study discloses that the redox activity of N-(1,4-naphthoquinone)-o aminophenol derivatives (LRH2) containing a (phenol)-NH-(1,4-naphthoquinone) fragment is notably different from that of a (phenol)-NH-(phenol) precursor. The former is a platform for a redox cascade. LRH2 is redox noninnocent and exists in Cat-N-(1,4-naphthoquinone)(2-) (LR 2-) and SQ-N-(1,4-naphthoquinone) (LR *-) states in the complexes. Reactions of LRH2 with cobalt(II) salts in MeOH in air promote a cascade affording spiro oxazine-oxazepine derivatives (OXLR) in good yields, when R = H, Me, tBu. Spiro oxazine-oxazepine derivatives are bioactive, and such a molecule has so far not been isolated by a schematic route. In this context this cascade is significant. Dimerization of LRH2 -> OXLR in MeOH is a (6H+ + 6e) oxidation reaction and is composed of formations of four covalent bonds and 6-exo-trig and 7-endo-trig cyclization based on C-O coupling reactions, where MeOH is the source of a proton and the ester function. It was established that the active cascade precursor is [(LMe *-)CoIIICl2] (A). Notably, formation of a spiro derivative was not detected in CH3CN and the reaction ends up furnishing A. The route of the reaction is tunable by R, when R = NO2, it is a (2e + 4H+) oxidation reaction affording a dinuclear LR 2- complex of cobalt(III) of the type [(LNO2 2-)2CoIII2(OMe)2(H2O)2] (1) in good yields. No cascade occurs with zinc(II) ion even in MeOH and produces a LMe *- complex of type [(LMe * )ZnIICl2] (2). The intermediate A and 2 exhibit strong EPR signals at g = 2.008 and 1.999, confrming the existence of LMe *- coordinated to low-spin cobalt(III) and zinc(II) ions. The intermediates of LRH2 -> OXLR conversion were analyzed by ESI mass spectrometry. The molecular geometries of OXLR and 1 were confirmed by X ray crystallography, and the spectral features were elucidated by TD DFT calculations. PMID- 29035523 TI - Current Stormwater Harvesting Guidelines Are Inadequate for Mitigating Risk from Campylobacter During Nonpotable Reuse Activities. AB - Campylobacter is a pathogen frequently detected in urban stormwater worldwide. It is one of the leading causes of enteric disease in many developed countries and is the leading cause of enteric disease in Australia. Prior to harvesting stormwater, adequate treatment is necessary to mitigate risks derived from such harmful pathogens. The goal of this research was to estimate the health risks associated with the exposure to Campylobacter when harvesting urban stormwater for toilet flushing and irrigation activities, and the role treatment options play in limiting risks. Campylobacter data collected from several urban stormwater systems in Victoria, Australia, were the inputs of a Quantitative Microbial Risk Assessment model. The model included seven treatment scenarios, spanning wetlands, biofilters, and more traditional treatment trains including those recommended by the Australian Guidelines for Water Recycling. According to our modeling and acceptable risk thresholds, only two treatment scenarios could supply water of sufficient quality for toilet flushing and irrigation end-uses: (1) using stormwater biofilters coupled with UV-treatment and (2) a more conventional coagulation, filtration, UV, and chlorination treatment plant. Importantly, our modeling results suggest that current guidelines in place for stormwater reuse are not adequate for protecting against exposure to Campylobacter. However, more research is required to better define whether the Campylobacter detectable in stormwater are pathogenic to humans. PMID- 29035524 TI - Reversible Iodine Capture by Nonporous Pillar[6]arene Crystals. AB - Here we report that easily obtained per-ethylated pillar[6]arene (EtP6) is a new adsorbent for iodine capture with high chemical and thermal stability. Nonporous EtP6 solids are shown to capture not only volatile iodine in the air but also iodine dissolved in an organic solvent and aqueous solution. Uptake of iodine leads to a structural transformation of EtP6 in the solid state. In the single crystal structure of iodine-doped EtP6 (I2@EtP6), each adsorbed iodine molecule is located between two adjacent EtP6 molecules to form a linear supramolecular polymer. Iodine is released spontaneously from I2@EtP6 solids when they are immersed in cyclohexane. These EtP6 solids can be reused many times without losing iodine capture capacity. PMID- 29035525 TI - Sesquiterpenes from the Endophyte Glomerella cingulata. AB - From the cultured endophytic fungus Glomerella cingulata isolated from a toxic plant, Gelsemium elegans, one new phenanthrene (1), four new sesquiterpenes (2 5), and three known sesquiterpenes (6-8) were isolated. Their structures were elucidated using spectroscopic methods. Based on the ECD calculations, the absolute configurations of the new compounds were determined. Compounds 2, 4, and 5 inhibited lipopolysaccharide (LPS)-induced NO production in BV2 cells by 50.6, 36.1, and 29.4%, respectively, at 1 MUM (positive control curcumin, IC50 = 4.0 MUM). PMID- 29035526 TI - Interplay among Sequence, Folding Propensity, and Bio-Piezoelectric Response in Short Peptides and Peptoids. AB - Many biomaterials are piezoelectric (i.e., mechanically deform under an applied electric field); however, the molecular origin of this phenomenon remains unclear. In the case of protein-based scaffolds, one possibility involves flexible response of local folding motifs to the applied field. Here, we test this hypothesis by examining the piezoresponse in a series of helical peptide based oligomers. Control over folding propensity is exerted through systematic variation in both side-chain sequence and backbone composition. Piezoresponse is quantified by piezo-force microscopy on polar self-assembled monolayers. The results indicate backbone rigidity is an important determinant in peptide electromechanical responsiveness. PMID- 29035527 TI - Carbon-Carbon Bonding between Nitrogen Heterocyclic Carbenes and CO2. AB - Ab initio MP2/aug'-cc-pVTZ calculations were performed to identify equilibrium complexes and molecules and the transition structures that interconvert them, on the potential energy surfaces of a series of seven binary systems that have nitrogen heterocyclic carbenes (NHCs) as the electron-pair donors to CO2. Seven of the NHCs form complexes stabilized by C...C tetrel bonds, and six of these seven are also stabilized by a secondary interaction between an O of CO2 and the adjacent N-H group of the carbene. Six of the seven NHCs also form stable molecules with C-C covalent bonds, and with one exception, these molecules have binding energies that are significantly greater than the binding energies of the complexes. Charge-transfer stabilizes all of the NHC:CO2 complexes and occurs from the C lone pair of the carbene to the CO2 molecule. The six complexes that have secondary stabilizing interactions are also stabilized by back-donation of charge from the O to the adjacent N-H group of the carbene. Transition structures present barriers to the interconversion of complexes and molecules. With one exception, the barrier for converting a molecule to a complex is much greater than the barrier for the reverse reaction. Atoms in Molecules bonding parameters, shifts of IR C-O stretching and O-C-O bending frequencies, changes in NMR 13C chemical shieldings, and changes in C-C and C-O coupling constants as 1tJ(C-C) and J(C-O) for complexes and transition structures become 1J(C-C) and 2J(C-O) for molecules, are all consistent with the changing nature of the C...C tetrel bond in the complex through the transition state to a covalent C-C bond in the molecule. PMID- 29035528 TI - Role of Flavonols and Proanthocyanidins in the Sensory Quality of Sea Buckthorn (Hippophae rhamnoides L.) Berries. AB - Sensory profile, flavonols, proanthocyanidins, sugars, and organic acids were investigated in purees of six sea buckthorn (Hippophae rhamnoides) cultivars. The sensory profiles of the purees were dominated by intense sourness followed by astringency and bitterness due to the high content of malic acid. Malic acid and isorhamnetin glycosides, especially isorhamnetin-3-O-sophoroside-7-O-rhamnoside, had close association with the astringent attributes in the different purees, whereas some of the known astringent compounds such as proanthocyanidin dimers and trimers or quercetin glycosides, had less impact. Moreover, the ratios between contents of acids and phenolic compounds were more important predictors of bitterness than the individual variables alone. Astringency and bitterness are important sensory factors for the consumer acceptance of sea buckthorn products. The current study provides new knowledge on the correlations between sensory properties and composition and supports industrial utilization of the sea buckthorn berries. PMID- 29035529 TI - MD and QM/MM Study of the Quaternary HutP Homohexamer Complex with mRNA, l Histidine Ligand, and Mg2. AB - The HutP protein from B. subtilis regulates histidine metabolism by interacting with an antiterminator mRNA hairpin in response to the binding of l-histidine and Mg2+. We studied the functional ligand-bound HutP hexamer complexed with two mRNAs using all-atom microsecond-scale explicit-solvent MD simulations performed with the Amber force fields. The experimentally observed protein-RNA interface exhibited good structural stability in the simulations with the exception of some fluctuations in an unusual adenine-threonine interaction involving two closely spaced H-bonds. We further investigated this interaction by comparing QM/MM and MM optimizations, using the QM region comprising almost 350 atoms described at the DFT-D3 level. The QM/MM method clearly improved the adenine-threonine interaction compared to MM, especially when the X-H bond lengths were frozen during the MM optimization to mimic the use of SHAKE in the MD simulations. Thus, both the MM approximation and the use of SHAKE can compromise the description of H-bonds at protein-RNA interfaces. The simulations also revealed a notable Mg2+ parameter dependence in the behavior of the ligand-binding pocket (LBP). With the SPC/E water model, the 12-6 Aqvist and Li&Merz parameters provided an entirely stable LBP structure, but the 12-6 Allner and 12-6-4 Li&Merz parametrizations resulted in a progressive loss of direct nitrogen-Mg2+ LBP coordination. The Allner and Li&Merz 12-6 parametrizations were also tested with the TIP3P water model; the LBP was destabilized in both cases. This illustrates the difficulty of consistently describing different Mg2+ interactions using nonpolarizable force fields. Overall, the simulations support the hypothesis that HutP protein becomes fully structured upon ligand binding. Subsequent RNA binding does not affect the protein structure, in keeping with the mechanism inferred from experimental structures. PMID- 29035530 TI - Correction to Synthetic Approaches to the New Drugs Approved During 2015. PMID- 29035531 TI - Molecular Simulations of Melittin-Induced Membrane Pores. AB - Membrane-active peptides (MAPs) are able to induce pores in cell membranes via molecular mechanisms, which are still subject to ongoing research. In this work, we present molecular dynamics simulations that suggest a precursor membrane defect plays an important role in the pore-inducing activity of the prototypical antimicrobial peptide melittin. The simulations reveal that the hydrophobic N terminus of melittin is able to recognize and insert into the membrane defect in the lipid bilayer and that this leads to a cascading transfer of adsorbed peptides to the membrane defect, leading to peptide aggregation in the pore. We show that this mechanism also acts in the case of a melittin mutant without the flexible central proline hinge, thus indicating the latter is not crucial to the activity of melittin, which is consistent with experiments. PMID- 29035532 TI - Unusual Long-Range Ordering Incommensurate Structural Modulations in an Organic Molecular Ferroelectric. AB - The incommensurate (IC) behaviors of ferroelectrics have been widely investigated in inorganic oxides as an exciting branch for aperiodic materials, whereas it still remains a great challenge to achieve such intriguing effects in organic systems. Here, we present that successive ordering of dynamic dipoles in an organic molecular ferroelectric, N-isopropylbenzylaminium trichloroacetate (1), enables unusual incommensurately modulated structures between its paraelectric phase and ferroelectric phase. In particular, 1 exhibits three distinct IC states coupling with a long-range ordering modulation. That is, the incommensurately modulated lattice is ~7 times as large as its periodic prototype, and the IC structure is well solved using a (3 + 1)D superspace group with the modulated wavevector q = (0, 0, 0.1589). To the best of our knowledge, 1 is the first organic ferroelectric showing such a long-range ordering IC structural modulation. In addition, structural analyses reveal that slowing down dynamic motions of anionic moieties accounts for its modulation behaviors, which also results in dramatic reorientation of dipolar moments and concrete ferroelectric polarization of 1 (~0.65 MUC/cm2). The combination of unique IC structural modulations and ferroelectricity makes 1 a potential candidate for the assembly of an artificially modulated lattice, which will allow for a deep understanding of the underlying chemistry and physics of aperiodic materials. PMID- 29035533 TI - Bond-Selective Imaging of Cells by Mid-Infrared Photothermal Microscopy in High Wavenumber Region. AB - Using a visible beam to probe the thermal effect induced by infrared absorption, mid-infrared photothermal (MIP) microscopy allows bond-selective chemical imaging at submicron spatial resolution. Current MIP microscopes cannot reach the high wavenumber region due to the limited tunability of the existing quantum cascade laser source. We extend the spectral range of MIP microscopy by difference frequency generation (DFG) from two chirped femtosecond pulses. Flexible wavelength tuning in both C-D and C-H regions was achieved with mid-infrared power up to 22.1 mW and spectral width of 29.3 cm-1. Distribution of fatty acid in live human lung cancer cells was revealed by MIP imaging of the C-D bond at 2192 cm-1. PMID- 29035534 TI - Rovibrational Characterization of High-Lying Electronic States of Cu2 by Double Resonant Nonlinear Spectroscopy. AB - The available knowledge of the electronically excited states of the copper dimer is limited. This is common for transition metals, as the high density of states hinders both experimental assignment and computation. In this work, two-color resonant four-wave mixing spectroscopy was applied to neutral Cu2 in the gas phase. The method yielded accurate positions of individual rovibrational lines in the I-X and J-X electronic systems. This revealed the term symbols for the I and J states as 1Piu (1u) and 1Sigmau+ (0u+), respectively. For the 63Cu2 isotopologue, accurate molecular constants were obtained. The characterization of the J state finally allowed decisive determination of its electron configuration. The J state is obtained from the ground state by promotion of a 3dpig electron into the weakly bonding 4ppiu molecular orbital. From the data analysis, lifetimes of the I state (between 10 ps and 5 ns) and J state (66 ns) were inferred. PMID- 29035535 TI - Report and Application of a Tool Compound Data Set. AB - Small molecule tool compounds have enabled profound advances in life science research. These chemicals are potent, cell active, and selective, and, thus, are suitable for interrogating biological processes. For these chemicals to be useful they must be correctly characterized and researchers must be aware of them. We mined the ChEMBL bioactivity database to identify high quality tool compounds in an unbiased way. We identified 407 best-in-class compounds for 278 protein targets, and these are reported in an annotated data set. Additionally, we developed informatics functions and a web application for data visualization and automated pharmacological hypothesis generation. These functions were used to predict inhibitors of the Chromobox Protein Homologue 5 (CBX5) mediated gene repression pathway that currently lacks appropriate inhibitors. The predictions were subsequently validated by a highly specific cell based assay, revealing new chemical modulators of CBX5-mediated heterochromatin formation. This data set and associated functions will help researchers make the best use of these valuable compounds. PMID- 29035537 TI - Discovery of a Novel Piperidine-Based Inhibitor of Cholesteryl Ester Transfer Protein (CETP) That Retains Activity in Hypertriglyceridemic Plasma. AB - Herein we describe the discovery and characterization of a novel, piperidine based inhibitor of cholesteryl ester transfer protein (CETP) with a core structure distinct from other reported CETP inhibitors. A versatile synthesis starting from 4-methoxypyridine enabled an efficient exploration of the SAR, giving a lead molecule with potent CETP inhibition in human plasma. The subsequent optimization focused on improvement of pharmacokinetics and mitigation of off-target liabilities, such as CYP inhibition, whose improvement correlated with increased lipophilic efficiency. The effort led to the identification of an achiral, carboxylic acid-bearing compound 16 (TAP311) with excellent pharmacokinetics in rats and robust efficacy in hamsters. Compared to anacetrapib, the compound showed substantially reduced lipophilicity, had only modest distribution into adipose tissue, and retained potency in hypertriglyceridemic plasma in vitro and in vivo. Furthermore, in contrast to torcetrapib, the compound did not increase aldosterone secretion in human adrenocortical carcinoma cells nor in chronically cannulated rats. On the basis of its preclinical efficacy and safety profile, the compound was advanced into clinical trials. PMID- 29035536 TI - HDAC8 Substrates Identified by Genetically Encoded Active Site Photocrosslinking. AB - The histone deacetylase family comprises 18 enzymes that catalyze deacetylation of acetylated lysine residues; however, the specificity and substrate profile of each isozyme remains largely unknown. Due to transient enzyme-substrate interactions, conventional co-immunoprecipitation methods frequently fail to identify enzyme-specific substrates. Additionally, compensatory mechanisms often limit the ability of knockdown or chemical inhibition studies to achieve significant fold changes observed by acetylation proteomics methods. Furthermore, measured alterations do not guarantee a direct link between enzyme and substrate. Here we present a chemical crosslinking strategy that incorporates a photoreactive, non-natural amino acid, p-benzoyl-l-phenylalanine, into various positions of the structurally characterized isozyme histone deacetylase 8 (HDAC8). After covalent capture, co-immunoprecipitation, and mass spectrometric analysis, we identified a subset of HDAC8 substrates from human cell lysates, which were further validated for catalytic turnover. Overall, this chemical crosslinking approach identified novel HDAC8-specific substrates with high catalytic efficiency, thus presenting a general strategy for unbiased deacetylase substrate discovery. PMID- 29035538 TI - Resolving the Spatial Structures of Bound Hole States in Black Phosphorus. AB - Understanding the local electronic properties of individual defects and dopants in black phosphorus (BP) is of great importance for both fundamental research and technological applications. Here, we employ low-temperature scanning tunnelling microscope (LT-STM) to probe the local electronic structures of single acceptors in BP. We demonstrate that the charge state of individual acceptors can be reversibly switched by controlling the tip-induced band bending. In addition, acceptor-related resonance features in the tunnelling spectra can be attributed to the formation of Rydberg-like bound hole states. The spatial mapping of the quantum bound states shows two distinct shapes evolving from an extended ellipse shape for the 1s ground state to a dumbbell shape for the 2px excited state. The wave functions of bound hole states can be well-described using the hydrogen-like model with anisotropic effective mass, corroborated by our theoretical calculations. Our findings not only provide new insight into the many-body interactions around single dopants in this anisotropic two-dimensional material but also pave the way to the design of novel quantum devices. PMID- 29035539 TI - Three-Fold-Symmetric Selenium-Donor Metallaboratranes of Cobalt and Nickel. AB - A novel selenium-containing pyridazinyl-based soft scorpionate ligand (KTnse) was synthesized. It reacts with CoCl2 and NiCl2, yielding the first metallaboratrane complexes with selenium in their donor positions. Further substitution with Ag(OTf) or NaN3 allows isolation of the respective triflate or azide complexes. Reaction with Ag(OTf) leads in the case of nickel to a dinuclear, dicationic complex with a short Ni-Ni distance, while cobalt gave a mononuclear cationic species. Substitution of the chloride by azide yields with both metals the respective azide complexes. All compounds were characterized via single-crystal X ray diffraction analysis. Density functional theory calculations on the chloride species point to oxidized cobalt(III) and nickel(III) centers. PMID- 29035541 TI - Hydration Phase Diagram of Clay Particles from Molecular Simulations. AB - Adsorption plays a fundamental role in the behavior of clays. Because of the confinement between solid clay layers on the nanoscale, adsorbed water is structured in layers, which can occupy a specific volume. The transition between these states is intimately related to key features of clay thermo-hydro mechanical behavior. In this article, we consider the hydration states of clays as phases and the transition between these states as phase changes. The thermodynamic formulation supporting this idea is presented. Then, the results from grand canonical Monte Carlo simulations of sodium montmorillonite are used to derive hydration phase diagrams. The stability analysis presented here explains the coexistence of different hydration states at clay particle scale and improves our understanding of the irreversibilities of clay thermo-hydro mechanical behavior. Our results provide insights into the mechanics of the elementary constituents of clays, which is crucial for a better understanding of the macroscopic behavior of clay-rich rocks and soils. PMID- 29035540 TI - Targetable Clinical Nanoparticles for Precision Cancer Therapy Based on Disease Specific Molecular Inflection Points. AB - Novel translational approaches based on clinical modular nanoplatforms are needed in order to treat solid cancers according to their discrete molecular features. In the present study, we show that the clinical nanopharmaceutical Ferumoxytol, which consists of a glucose-based coat surrounding an iron oxide core, could identify molecular characteristics of prostate cancer, corresponding to unique phases of the disease continuum. By affixing a targeting probe for the prostate specific membrane antigen on its surface, the nanopharmaceutical was able to assess the functional state of the androgen receptor pathway via MRI, guiding therapy and delivering it with the same clinical nanoparticle. In order to simultaneously inhibit signaling from key oncogenic pathways of more advanced forms of prostate cancer, a single-agent therapy for early stage disease to inhibit DNA replication, as well as combination therapy with two drugs co retained within the nanopharmaceutical's polymeric coating, were tested and resulted in complete tumor ablation. Recalcitrant and terminal forms of the disease were effectively treated with a nanopharmaceutical delivering a combination that upregulates endoplasmic reticulum stress and inhibits metastasis, thereby showing that this multifunctional nanoplatform can be used in the clinic for patient stratification, as well as precision treatment based on the individual's unique disease features. PMID- 29035542 TI - Linear Chain Formation of Split-Aptamer Dimers on Surfaces Triggered by Adenosine. AB - The detection of small molecules impacts various fields; however, their small size and low concentration are usually the cause of limitations in their detection. Thus, the need for biosensors with appropriate probes and signal amplification strategies is required. Aptamers are appropriate probes selected specifically against small targets such as adenosine. The possibility to split aptamers in parts led to original amplification strategies based on sandwich assays. By combining the self-assembling of oligonucleotide dimers with split aptamer dangling ends and a surface plasmon resonance imaging technique, we developed an original amplification approach based on linear chain formation in the presence of the adenosine target. In this article, on the basis of sequence engineering, we analyzed its performance and the effect of the probe grafting density on the length of the chains formed at the surface of the biosensor. PMID- 29035543 TI - Speciated Monitoring of Gas-Phase Organic Peroxy Radicals by Chemical Ionization Mass Spectrometry: Cross-Reactions between CH3O2, CH3(CO)O2, (CH3)3CO2, and c C6H11O2. AB - Organic peroxy radicals ("RO2", with R organic) are key intermediates in most oxygen-rich systems, where organic compounds are oxidized (natural environment, flames, combustion engines, living organisms, etc). But, until recently, techniques able to monitor simultaneously and distinguish between RO2 species ("speciated" detection) have been scarce, which has limited the understanding of complex systems containing these radicals. Mass spectrometry using proton transfer ionization has been shown previously to detect individual gas-phase RO2 separately. In this work, we illustrate its ability to speciate and monitor several RO2 simultaneously by investigating reactions involving CH3O2, CH3C(O)O2, c-C6H11O2, and (CH3)3CO2. The detection sensitivity of each of these radicals was estimated by titration with NO to between 50 and 1000 Hz/ppb, with a factor from 3 to 5 of uncertainties, mostly due to the uncertainties in knowing the amounts of added NO. With this, the RO2 concentration in the reactor was estimated between 1 * 1010 and 1 * 1012 molecules cm-3. When adding a second radical species to the reactor, the kinetics of the cross-reaction could be studied directly from the decay of the first radical. The time-evolution of two and sometimes three different RO2 was followed simultaneously, as the CH3O2 produced in further reaction steps was also detected in some systems. The rate coefficients obtained are (in molecule-1 cm3 s-1): kCH3O2+CH3C(O)O2 = 1.2 * 10 11, kCH3O2+t-butylO2 = 3.0 * 10-15, kc-hexylO2+CH3O2 = 1.2 * 10-13, kt butylO2+CH3C(O)O2 = 3.7 * 10-14, and kc-hexylO2+t-butylO2 = 1.5 * 10-15. In spite of their good comparison with the literature and good reproducibility, large uncertainties (*5/5) are recommended on these results because of those in the detection sensitivities. This work is a first illustration of the potential applications of this technique for the investigation of organic radicals in laboratory and in more complex systems. PMID- 29035544 TI - Addressing the Fundamental Electronic Properties of Wurtzite GaAs Nanowires by High-Field Magneto-Photoluminescence Spectroscopy. AB - At ambient conditions, GaAs forms in the zincblende (ZB) phase with the notable exception of nanowires (NWs) where the wurtzite (WZ) lattice is also found. The WZ formation is both a complication to be dealt with and a potential feature to be exploited, for example, in NW homostructures wherein ZB and WZ phases alternate controllably and thus band gap engineering is achieved. Despite intense studies, some of the fundamental electronic properties of WZ GaAs NWs are not fully assessed yet. In this work, by using photoluminescence (PL) under high magnetic fields (B = 0-28 T), we measure the diamagnetic shift, DeltaEd, and the Zeeman splitting of the band gap free exciton in WZ GaAs formed in core-shell InGaAs-GaAs NWs. The quantitative analysis of DeltaEd at different temperatures (T = 4.2 and 77 K) and for different directions of B? allows the determination of the exciton reduced mass, MUexc, in planes perpendicular (MUexc = 0.052 m0, where m0 is the electron mass in vacuum) and parallel (MUexc = 0.057 m0) to the c axis of the WZ lattice. The value and anisotropy of the exciton reduced mass are compatible with the electron lowest-energy state having Gamma7C instead of Gamma8C symmetry. This finding answers a long discussed issue about the correct ordering of the conduction band states in WZ GaAs. As for the Zeeman splitting, it varies considerably with the field direction, resulting in an exciton gyromagnetic factor equal to 5.4 and ~0 for B?//c and B??c, respectively. This latter result provides fundamental insight into the band structure of wurtzite GaAs. PMID- 29035546 TI - GRadient Adaptive Decomposition (GRAD) Method: Optimized Refinement Along Macrostate Borders in Markov State Models. AB - Markov state models (MSM) are used to model the kinetics of processes sampled by molecular dynamics (MD) simulations. MSM reduce the high dimensionality inherent to MD simulations as they partition the free energy landscape into discrete states, generating a kinetic model as a series of uncorrelated jumps between states. Here, we detail a new method, called GRadient Adaptive Decomposition, which optimizes coarse-grained MSM by refining borders with respect to the gradient along the free energy surface. The proposed method requires only a small number of initial microstates because it corrects for errors produced by limited sampling. Whereas many methods rely on fuzzy partitions for proper statistics, GRAD retains a crisp decomposition. Two test studies are presented to illustrate the method and assess its accuracy: the first analyzes MSM of idealized model potentials, while the second is a study of the dynamics of unstacking of the deoxyribose adenosine monophosphate dinucleotide. PMID- 29035545 TI - Determination of n-Type Doping Level in Single GaAs Nanowires by Cathodoluminescence. AB - We present an effective method of determining the doping level in n-type III-V semiconductors at the nanoscale. Low-temperature and room-temperature cathodoluminescence (CL) measurements are carried out on single Si-doped GaAs nanowires. The spectral shift to higher energy (Burstein-Moss shift) and the broadening of luminescence spectra are signatures of increased electron densities. They are compared to the CL spectra of calibrated Si-doped GaAs layers, whose doping levels are determined by Hall measurements. We apply the generalized Planck's law to fit the whole spectra, taking into account the electron occupation in the conduction band, the bandgap narrowing, and band tails. The electron Fermi levels are used to determine the free electron concentrations, and we infer nanowire doping of 6 * 1017 to 1 * 1018 cm-3. These results show that cathodoluminescence provides a robust way to probe carrier concentrations in semiconductors with the possibility of mapping spatial inhomogeneities at the nanoscale. PMID- 29035547 TI - Pharmacokinetics and Pharmacodynamics of the Triterpenoid Ursolic Acid in Regulating the Antioxidant, Anti-inflammatory, and Epigenetic Gene Responses in Rat Leukocytes. AB - The triterpenoid ursolic acid (UA) has been proposed as a potential cancer chemopreventive agent in many preclinical and clinical studies. In the present work, we aimed to characterize the pharmacokinetics (PK) of UA and to quantitatively assess the antioxidative and anti-inflammatory effects of UA, which are potentially linked to its chemopreventive efficacy. UA was administered intravenously (i.v., 20 mg/kg) or by oral gavage (100 mg/kg) to male Sprague Dawley rats, and blood samples were collected at a series of designated time points. The plasma concentration of UA was determined using a validated liquid chromatography-mass spectrometry (LC-MS) approach. A biexponential decline in the UA plasma concentration was observed after i.v. dosing and was fitted to a two compartmental model. The expression levels of phase II drug metabolism (DM)/antioxidant genes and the inflammatory iNos gene in corresponding treatment arms were measured using qPCR as a pharmacodynamic (PD) marker. The expression of phase II DM/antioxidant genes increased and peaked approximately 3 h after 20 mg/kg UA treatment. In a lipopolysaccharide (LPS)-induced acute inflammation model, UA inhibited LPS-stimulated iNos expression and that of the epigenetic markers the DNA methyltransferases (DNMTs) and histone deacetylases (HDACs) in leukocytes. A PK-PD model using Jusko's indirect response model (IDR) with transition compartments (TC) was established to describe the time delay and magnitude of the gene expression elicited by UA. The PK-PD model provided reasonable fitting linking the plasma concentration of UA simultaneously with the PD response based on leukocyte mRNA expression. Overall, our results indicate that UA is effective at inducing various phase II DM/antioxidant genes and inhibiting pro-inflammatory genes in vivo. This PK-PD modeling approach may provide a conceptual framework for the future clinical evaluation of dietary chemopreventive agents in humans. PMID- 29035549 TI - Water as a Probe of the Colloidal Properties of Cement. AB - Cement is produced by mixing mineral phases based on calcium silicates and aluminates with water. The hydration reaction of the mixture leads to a synthetic material with outstanding properties that can be used as a binder for construction applications. Despite the importance of cement in society, for a long time, the chemical reactions involved in its hydration remained poorly understood as a result of the complexity of hydration processes, nanostructure, and transport phenomena. This feature article reviews the recently obtained results using water as a probe to detail the essential features in the setting process. By examining the peculiar physicochemical properties of water, fundamental information on the evolving inorganic colloid matrix can be deduced, ranging from the fractal nanostructure of the inorganic silicate framework to the transport phenomena inside the developing porosity. A similar approach can be transferred to the investigation of a plethora of other complex systems, where water plays the main role in determining the final structural and transport properties (i.e., biomaterials, hydrogels, and colloids). PMID- 29035548 TI - Enantio- and Diastereoselective Organocatalytic Conjugate Additions of Nitroalkanes to Enone Diesters. AB - Enantio- and diastereoselective conjugate addition reactions between nitroethane or nitropropane and enone diesters are reported. A bifunctional triaryliminophosphorane catalyzed the addition reaction with consistently excellent stereoselectivities and yields across a wide range of substrates. By the use of the gem-diester functional handle present in the adducts, local desymmetrization via diastereotopic group discrimination was demonstrated, and a polyfunctionalized lactam with three contiguous stereocenters was synthesized. PMID- 29035550 TI - Copper-Catalyzed C(sp2)-S Coupling Reactions for the Synthesis of Aryl Dithiocarbamates with Thiuram Disulfide Reagents. AB - An efficient protocol for the copper-catalyzed preparation of aryl dithiocarbamates from aryl iodides and inexpensive, environmentally benign tetraalkylthiuram disulfides was developed. The features of mild reaction conditions, high yields, and broad substrate scope render this new approach synthetically attractive for the preparation of potentially biologically active compounds. PMID- 29035552 TI - Trion-Species-Resolved Quantum Beats in MoSe2. AB - Monolayer photonic materials offer a tremendous potential for on-chip optoelectronic devices. Their realization requires knowledge of optical coherence properties of excitons and trions that have so far been limited to nonlinear optical experiments carried out with strongly inhomogeneously broadened material. Here we employ h-BN-encapsulated and electrically gated MoSe2 to reveal coherence properties of trion species directly in the linear optical response. Autocorrelation measurements reveal long dephasing times up to T2 = 1.16 +/- 0.05 ps for positively charged excitons. Gate-dependent measurements provide evidence that the positively charged trion forms via spatially localized hole states, making this trion less prone to dephasing in the presence of elevated hole carrier concentrations. Quantum beat signatures demonstrate coherent coupling between excitons and trions that have a dephasing time up to 0.6 ps, a 2-fold increase over those in previous reports. A key merit of the prolonged exciton/trion coherences is that they were achieved in a linear optical experiment and thus are directly relevant to applications in nanolasers, coherent control, and on-chip quantum information processing requiring long photon coherence. PMID- 29035551 TI - Improved Phenoxyalkylbenzimidazoles with Activity against Mycobacterium tuberculosis Appear to Target QcrB. AB - The phenoxy alkyl benzimidazoles (PABs) have good antitubercular activity. We expanded our structure-activity relationship studies to determine the core components of PABs required for activity. The most potent compounds had minimum inhibitory concentrations against Mycobacterium tuberculosis in the low nanomolar range with very little cytotoxicity against eukaryotic cells as well as activity against intracellular bacteria. We isolated resistant mutants against PAB compounds, which had mutations in either Rv1339, of unknown function, or qcrB, a component of the cytochrome bc1 oxidase of the electron transport chain. QcrB mutant strains were resistant to all PAB compounds, whereas Rv1339 mutant strains were only resistant to a subset, suggesting that QcrB is the target. The discovery of the target for PAB compounds will allow for the improved design of novel compounds to target intracellular M. tuberculosis. PMID- 29035553 TI - Construction of Antithrombotic Tissue-Engineered Blood Vessel via Reduced Graphene Oxide Based Dual-Enzyme Biomimetic Cascade. AB - Thrombosis is one of the biggest obstacles in the clinical application of small diameter tissue-engineered blood vessels (TEBVs). The implantation of an unmodified TEBV will lead to platelet aggregation and further activation of the coagulation cascade, in which the high concentration of adenosine diphosphate (ADP) that is released by platelets plays an important role. Inspired by the phenomenon that endothelial cells continuously generate endogenous antiplatelet substances via enzymatic reactions, we designed a reduced graphene oxide (RGO) based dual-enzyme biomimetic cascade to successively convert ADP into adenosine monophosphate (AMP) and AMP into adenosine. We used RGO as a support and bound apyrase and 5'-nucleotidase (5'-NT) on the surface of RGO through covalent bonds, and then, we modified the surface of the collagen-coated decellularized vascular matrix with the RGO-enzyme complexes, in which RGO functions as a platform with a large open surface area and minimal diffusion barriers for substrates/products to integrate two catalytic systems for cascading reactions. The experimental results demonstrate that the two enzymes can synergistically catalyze procoagulant ADP into anticoagulant AMP and adenosine successively under physiological conditions, thus reducing the concentration of ADP. AMP and adenosine can weaken or even reverse the platelet aggregation induced by ADP, thereby inhibiting thrombosis. Adenosine can also accelerate the endothelialization of TEBVs by regulating cellular energy metabolism and optimizing the microenvironment, thus ensuring the antithrombotic function and patency of TEBVs even after the RGO-enzyme complex loses its activity. PMID- 29035555 TI - Removal Mechanisms of Phosphate by Lanthanum Hydroxide Nanorods: Investigations using EXAFS, ATR-FTIR, DFT, and Surface Complexation Modeling Approaches. AB - Lanthanum-based materials are effective for sequestering phosphate in water, however, their removal mechanisms remain unclear, and the effects of environmentally relevant factors have not yet been studied. Hereby, this study explored the mechanisms of phosphate removal using La(OH)3 by employing extended X-ray absorption spectroscopy (EXAFS), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), density functional theory (DFT) and chemical equilibrium modeling. The results showed that surface complexation was the primary mechanism for phosphate removal and in binary phosphate configurations, namely diprotonated bidentate mononuclear (BM-H2) and bidentate binuclear (BB-H2), coexisting on La(OH)3 in acidic conditions. By increasing the pH to 7, BM-H1 and BB-H2 were the two major configurations governing phosphate adsorption on La(OH)3, whereas BB-H1 was the dominant configuration of phosphate adsorption at pH 9. With increasing phosphate loading, the phosphate configuration of on La(OH)3 transforms from binary BM-H1 and BB-H2 to BB-H1. Amorphous Ca3(PO4)2 forms in the presence of Ca, leading to enhanced phosphate removal at alkaline conditions. The contributions of different mechanisms to the overall phosphate removal were successfully simulated by a chemical equilibrium model that was consistent with the spectroscopic results. This study provides new insights into the molecular-level mechanism of phosphate removal by La(OH)3. PMID- 29035556 TI - A Theoretical and Mass Spectrometry Study of Dimethyl Methylphosphonate: New Isomers and Cation Decay Channels in an Intense Femtosecond Laser Field. AB - Using both mass spectrometry with intense femtosecond laser ionization and high level computational methods, we have explored the structure and fragmentation patterns of dimethyl methylphosphonate (DMMP) cation. Extensive search of the geometries of both neutral and positively charged DMMP yields new isomers that are appreciably lower in total energy than those commonly synthesized using the Michaelis-Arbuzov reaction. The stability of the standard isomer with CH3PO(OCH3)2 topology is found to be due to the presence of high barriers to isomer interconversion that involves several transition states. Our femtosecond laser ionization experiments show that the relative yields of the major dissociation products as a function of peak laser intensity correlate well with the theoretical estimates for the energies of the DMMP+ decay via various channels. In contrast, the peak laser intensities required for observation of minor dissociation products exhibit no correlation with the computed decay energies, which suggests that barrier heights and/or excited electronic states of DMMP+ determine its preferred fragmentation pathways in an intense femtosecond laser field. PMID- 29035554 TI - Star Polymers Reduce Islet Amyloid Polypeptide Toxicity via Accelerated Amyloid Aggregation. AB - Protein aggregation into amyloid fibrils is a ubiquitous phenomenon across the spectrum of neurodegenerative disorders and type 2 diabetes. A common strategy against amyloidogenesis is to minimize the populations of toxic oligomers and protofibrils by inhibiting protein aggregation with small molecules or nanoparticles. However, melanin synthesis in nature is realized by accelerated protein fibrillation to circumvent accumulation of toxic intermediates. Accordingly, we designed and demonstrated the use of star-shaped poly(2 hydroxyethyl acrylate) (PHEA) nanostructures for promoting aggregation while ameliorating the toxicity of human islet amyloid polypeptide (IAPP), the peptide involved in glycemic control and the pathology of type 2 diabetes. The binding of PHEA elevated the beta-sheet content in IAPP aggregates while rendering a new morphology of "stelliform" amyloids originating from the polymers. Atomistic molecular dynamics simulations revealed that the PHEA arms served as rodlike scaffolds for IAPP binding and subsequently accelerated IAPP aggregation by increased local peptide concentration. The tertiary structure of the star nanoparticles was found to be essential for driving the specific interactions required to impel the accelerated IAPP aggregation. This study sheds new light on the structure-toxicity relationship of IAPP and points to the potential of exploiting star polymers as a new class of therapeutic agents against amyloidogenesis. PMID- 29035558 TI - Imaging the Hydrogen Absorption Dynamics of Individual Grains in Polycrystalline Palladium Thin Films in 3D. AB - Defects such as dislocations and grain boundaries often control the properties of polycrystalline materials. In nanocrystalline materials, investigating this structure-function relationship while preserving the sample remains challenging because of the short length scales and buried interfaces involved. Here we use Bragg coherent diffractive imaging to investigate the role of structural inhomogeneity on the hydriding phase transformation dynamics of individual Pd grains in polycrystalline films in three-dimensional detail. In contrast to previous reports on single- and polycrystalline nanoparticles, we observe no evidence of a hydrogen-rich surface layer and consequently no size dependence in the hydriding phase transformation pressure over a 125-325 nm size range. We do observe interesting grain boundary dynamics, including reversible rotations of grain lattices while the material remains in the hydrogen-poor phase. The mobility of the grain boundaries, combined with the lack of a hydrogen-rich surface layer, suggests that the grain boundaries are acting as fast diffusion sites for the hydrogen atoms. Such hydrogen-enhanced plasticity in the hydrogen poor phase provides insight into the switch from the size-dependent behavior of single-crystal nanoparticles to the lower transformation pressures of polycrystalline materials and may play a role in hydrogen embrittlement. PMID- 29035557 TI - Microwave-Facilitated SPOT-Synthesis of Antibacterial Dipeptoids. AB - With microwave irradiation, the submonomer synthesis of dipeptoids on functionalized cellulose can be accelerated with good yields and purity. Optimization provided a library of 96 dipeptoids. From these, 29 compounds were found with an antibacterial activity against MRSA at a concentration of 25 MUM. Large nonpolar residues, such as undecylamine and dehydroabiethylamine, are the key components engendering the observed antibacterial activity of these peptoids. PMID- 29035559 TI - Cross-Coupling of Primary Amides to Aryl and Heteroaryl Partners Using (DiMeIHeptCl)Pd Promoted by Trialkylboranes or B(C6F5)3. AB - Boron-derived Lewis acids have been shown to effectively promote the coupling of amide nucleophiles to a wide variety of oxidative addition partners using Pd-NHC catalysts. Through a combination of NMR spectroscopy and control studies with and without oxygen and radical scavengers, we propose that boron-imidates form under the basic reaction conditions that aid coordination of nitrogen to Pd(II), which is rate limiting, and directly delivers the intermediate for reductive elimination. PMID- 29035560 TI - Cytotoxic Dibohemamines D-F from a Streptomyces Species. AB - Three dimeric analogues of bohemamines, dibohemamines D-F (1-3), together with dibohemamine A (4), were isolated from Streptomyces sp. CPCC 200497. Their structures were solved using a combination of mass spectrometry, 1D and 2D NMR spectroscopy, and CD. Dibohemamines D and E were new dimeric analogues of bohemamines, and dibohemamine F was a known compound obtained previously by semisynthesis. Dibohemamine F displayed potent cytotoxicity against cancer cell lines A549 and HepG2 with IC50 values of 1.1 and 0.3 MUM, respectively. Dibohemamines D and E showed moderate cytotoxicity against cancer cell lines A549 and HepG2. PMID- 29035561 TI - Enhancing Photochemical Internalization of DOX through a Porphyrin-based Amphiphilic Block Copolymer. AB - Drug resistance is a primary obstacle that seriously reduces the therapy efficiency of most chemotherapeutic agents. To address this issue, the photochemical internalization (PCI) was employed to help the anticancer drug escape from lysosome and improve their translocation to the nucleus. A pH sensitive porphyrin-based amphiphilic block copolymer (PEG113-b-PCL54-a porphyrin) was synthesized, which was acted not only as a carrier for the delivery of DOX but also as a photosensitizer for PCI. PEG113-b-PCL54-a-porphyrin as a drug carrier exhibited a higher drug loading capacity, entrapment efficiency, and DOX release content. The PCI effect of PEG113-b-PCL54-a-porphyrin was studied by confocal laser scanning microscopy, and the results showed that most of DOX could be translocated into the nucleus for DOX-loaded PEG113-b-PCL54 a-porphyrin micelles. Moreover, the IC50 of pH-sensitive DOX-loaded PEG113-b PCL54-a-porphyrin micelles was much lower than that of its counterpart without pH responsiveness, DOX-loaded PEG113-b-PCL54-porphyrin micelles. Therefore, this drug delivery system based on pH-sensitive porphyrin-containing block copolymer would act as a potential vehicle for overcoming drug resistance in chemotherapy. PMID- 29035563 TI - Kinetic Control of Graphene Localization in Co-continuous Polymer Blends via Melt Compounding. AB - Selective localization of graphene in co-continuous polymer blends is an attractive method for preparing conductive polymer composites. Localization of graphene at the interface between the two polymer phases produces good conductivity at ultra-low concentrations. Although graphene localization is ultimately dependent on thermodynamic factors such as the surface energy of graphene and the two polymer components, kinetics also strongly affects the migration and localization of graphene in polymer blends during melt compounding. However, few studies have systemically investigated the important role of kinetics on graphene localization. Here, we introduced graphene nanoplatelets (GNPs) in polylactic acid (PLA)/polystyrene (PS) co-continuous polymer blends. Although GNPs in thermal equilibrium prefer the PS phase, we were able to kinetically trap GNPs at the interface of polymer blends via control of melt compounding sequences, mixing times and shear rates. Utilizing morphological, rheological, and electrical measurements, we verified graphene localization and the suppression of coarsening in co-continuous polymer blends during annealing. When GNPs were premixed with the thermodynamically less-favorable PLA phase before mixing with the PS phase, GNPs can be kinetically trapped at the interface during melt compounding. Moreover, we show that a shorter melt-compounding time gives rise to a higher GNP interfacial coverage and a more effective morphology stabilization effect. Blends with as low as 0.5 wt % GNPs with only 30 s of melt compounding have a room-temperature conductivity of ~10-6 S/cm, which is larger than blends with longer melt-compounding times and potentially useful for antistatic materials. The in-depth study on the kinetics of graphene localization in our work provides a general guideline for the kinetic control of the localization of platelike nanofillers in polymer blends. Our study also demonstrates a facile method for manufacturing conductive polymer blends with low percolation thresholds. PMID- 29035564 TI - When Ligand Exchange Leads to Ion Exchange: Nanocrystal Facets Dictate the Outcome. AB - This study demonstrates that ligand exchange of nanocrystals (NCs) is not always an innocuous process, but can lead to facile (room temperature) ion exchange, depending on the surface crystal faceting. Rock salt PbTe NCs prepared as cubes with neutral facets undergo room-temperature ligand exchange with sulfide ions, whereas cuboctahedron-shaped particles with neutral {100} and polar {111} facets are transformed to PbS, driven by ion exchange along the ?111? direction. Likewise, cation exchange (with Ag+) occurs rapidly for cuboctahedra, whereas cubes remain inert. This dramatic difference is attributed to the relative surface area of {111} facets that promote rapid ion exchange and shows how facet engineering is a powerful knob for the control of reaction pathways in nanoparticles. PMID- 29035565 TI - Bottom-Up Tri-gate Transistors and Submicrosecond Photodetectors from Guided CdS Nanowalls. AB - Tri-gate transistors offer better performance than planar transistors by exerting additional gate control over a channel from two lateral sides of semiconductor nanowalls (or "fins"). Here we report the bottom-up assembly of aligned CdS nanowalls by a simultaneous combination of horizontal catalytic vapor-liquid solid growth and vertical facet-selective noncatalytic vapor-solid growth and their parallel integration into tri-gate transistors and photodetectors at wafer scale (cm2) without postgrowth transfer or alignment steps. These tri-gate transistors act as enhancement-mode transistors with an on/off current ratio on the order of 108, 4 orders of magnitude higher than the best results ever reported for planar enhancement-mode CdS transistors. The response time of the photodetector is reduced to the submicrosecond level, 1 order of magnitude shorter than the best results ever reported for photodetectors made of bottom-up semiconductor nanostructures. Guided semiconductor nanowalls open new opportunities for high-performance 3D nanodevices assembled from the bottom up. PMID- 29035562 TI - Quantification of Membrane Protein-Detergent Complex Interactions. AB - Although fundamentally significant in structural, chemical, and membrane biology, the interfacial protein-detergent complex (PDC) interactions have been modestly examined because of the complicated behavior of both detergents and membrane proteins in aqueous phase. Membrane proteins are prone to unproductive aggregation resulting from poor detergent solvation, but the participating forces in this phenomenon remain ambiguous. Here, we show that using rational membrane protein design, targeted chemical modification, and steady-state fluorescence polarization spectroscopy, the detergent desolvation of membrane proteins can be quantitatively evaluated. We demonstrate that depleting the detergent in the sample well produced a two-state transition of membrane proteins between a fully detergent-solvated state and a detergent-desolvated state, the nature of which depended on the interfacial PDC interactions. Using a panel of six membrane proteins of varying hydrophobic topography, structural fingerprint, and charge distribution on the solvent-accessible surface, we provide direct experimental evidence for the contributions of the electrostatic and hydrophobic interactions to the protein solvation properties. Moreover, all-atom molecular dynamics simulations report the major contribution of the hydrophobic forces exerted at the PDC interface. This semiquantitative approach might be extended in the future to include studies of the interfacial PDC interactions of other challenging membrane protein systems of unknown structure. This would have practical importance in protein extraction, solubilization, stabilization, and crystallization. PMID- 29035566 TI - Sulfidation of Iron-Based Materials: A Review of Processes and Implications for Water Treatment and Remediation. AB - Iron-based materials used in water treatment and groundwater remediation especially micro- and nanosized zerovalent iron (nZVI)-can be more effective when modified with lower-valent forms of sulfur (i.e., "sulfidated"). Controlled sulfidation for this purpose (using sulfide, dithionite, etc.) is the main topic of this review, but insights are derived by comparison with related and comparatively well-characterized processes such as corrosion of iron in sulfidic waters and abiotic natural attenuation by iron sulfide minerals. Material characterization shows that varying sulfidation protocols (e.g., concerted or sequential) and key operational variables (e.g., S/Fe ratio and sulfidation duration) result in materials with structures and morphologies ranging from core shell to multiphase. A meta-analysis of available kinetic data for dechlorination under anoxic conditions, shows that sulfidation usually increases dechlorination rates, and simultaneously hydrogen production is suppressed. Therefore, sulfidation can greatly improve the efficiency of utilization of reducing equivalents for contaminant removal. This benefit is most likely due to inhibited corrosion as a result of sulfidation. Sulfidation may also favor desirable pathways of contaminant removal, such as (i) dechlorination by reductive elimination rather than hydrogenolysis and (ii) sequestration of metals as sulfides that could be resistant to reoxidation. Under oxic conditions, sulfidation is shown to enhance heterogeneous catalytic oxidation of contaminants. These net effects of sulfidation on contaminant removal by iron based materials may substantially improve their practical utility for water treatment and remediation of contaminated groundwater. PMID- 29035567 TI - Hit-to-Lead Optimization and Discovery of 5-((5-([1,1'-Biphenyl]-4-yl)-6-chloro 1H-benzo[d]imidazol-2-yl)oxy)-2-methylbenzoic Acid (MK-3903): A Novel Class of Benzimidazole-Based Activators of AMP-Activated Protein Kinase. AB - AMP-activated protein kinase (AMPK) plays an essential role as a cellular energy sensor and master regulator of metabolism in eukaryotes. Dysregulated lipid and carbohydrate metabolism resulting from insulin resistance leads to hyperglycemia, the hallmark of type 2 diabetes mellitus (T2DM). While pharmacological activation of AMPK is anticipated to improve these parameters, the discovery of selective, direct activators has proven challenging. We now describe a hit-to-lead effort resulting in the discovery of a potent and selective class of benzimidazole-based direct AMPK activators, exemplified by 5-((5-([1,1'-biphenyl]-4-yl)-6-chloro-1H benzo[d]imidazol-2-yl)oxy)-2-methylbenzoic acid, 42 (MK-3903). Compound 42 exhibited robust target engagement in mouse liver following oral dosing, leading to improved lipid metabolism and insulin sensitization in mice. PMID- 29035568 TI - Triplet-State Dissolved Organic Matter Quantum Yields and Lifetimes from Direct Observation of Aromatic Amine Oxidation. AB - Excited triplet state chromophoric dissolved organic matter (3CDOM*) is a short lived mixture of excited-state species that plays important roles in aquatic photochemical processes. Unlike the study of the triplet states of well-defined molecules, which are amenable to transient absorbance spectroscopy, the study of 3CDOM* is hampered by it being a complex mixture and its low average intersystem crossing quantum yield (PhiISC). This study is an alternative approach to investigating 3CDOM* using transient absorption laser spectroscopy. The radical cation of N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD), formed through oxidation by 3CDOM*, was directly observable by transient absorption spectroscopy and was used to probe basic photophysical properties of 3CDOM*. Quenching and control experiments verified that TMPD*+ was formed from 3CDOM* under anoxic conditions. Model triplet sensitizers with a wide range of excited triplet state reduction potentials and CDOM oxidized TMPD at near diffusion-controlled rates. This gives support to the idea that a large cross-section of 3CDOM* moieties are able to oxidize TMPD and that the complex mixture of 3CDOM* can be simplified to a single signal. Using the TMPD*+ transient, the natural triplet lifetime and PhiISC for different DOM isolates and natural waters were quantified; values ranged from 12 to 26 MUs and 4.1-7.8%, respectively. PMID- 29035569 TI - Digest. PMID- 29035570 TI - A Median Solver and Phylogenetic Inference Based on Double-Cut-and-Join Sorting. AB - Genome rearrangement is known as one of the main evolutionary mechanisms on the genomic level. Phylogenetic analysis based on rearrangement played a crucial role in biological research in the past decades, especially with the increasing availability of fully sequenced genomes. In general, phylogenetic analysis aims to solve two problems: small parsimony problem (SPP) and big parsimony problem (BPP). Maximum parsimony is a popular approach for SPP and BPP, which relies on iteratively solving an NP-hard problem, the median problem. As a result, current median solvers and phylogenetic inference methods based on the median problem all face serious problems on scalability and cannot be applied to data sets with large and distant genomes. In this article, we propose a new median solver for gene order data that combines double-cut-and-join sorting with the simulated annealing algorithm. Based on this median solver, we built a new phylogenetic inference method to solve both SPP and BPP problems. Our experimental results show that the new median solver achieves an excellent performance on simulated data sets, and the phylogenetic inference tool built based on the new median solver has a better performance than other existing methods. PMID- 29035571 TI - Flavonoids in fruits and vegetables after thermal and nonthermal processing: A review. AB - Consumers currently demand more nutritious food, which is minimally processed and naturally produced. Flavonoids are one of the major plant metabolites found throughout the plant kingdom, especially in fruits and vegetables. Flavonoids exert tremendous positive effects on health and protect against various diseases. Fruits and vegetables are difficult to store for a long period, owing to their perishable nature even at low temperatures. Therefore, processing is necessary to prolong their shelf lives and increase nutritional values. Thermal processing has been used in the food sector since ancient times. However, nonthermal processing has become more attractive to consumers and product developers recently, owing to the retention of beneficial health properties after nonthermal processing. The present review will address the effects of thermal and nonthermal processing methods such as blanching, drying, high-pressure processing, ultrasound, pulsed electric field, and ultraviolet irradiation on total and individual flavonoid content in fruits and vegetables. In addition, this text will elucidate the stability characteristics as well as bioavailability, cytotoxicity, and transformations of flavonoids during thermal and nonthermal treatments. PMID- 29035572 TI - Maintaining and Enhancing Diversity of Sampled Protein Conformations in Robotics Inspired Methods. AB - The ability to efficiently sample structurally diverse protein conformations allows one to gain a high-level view of a protein's energy landscape. Algorithms from robot motion planning have been used for conformational sampling, and several of these algorithms promote diversity by keeping track of "coverage" in conformational space based on the local sampling density. However, large proteins present special challenges. In particular, larger systems require running many concurrent instances of these algorithms, but these algorithms can quickly become memory intensive because they typically keep previously sampled conformations in memory to maintain coverage estimates. In addition, robotics-inspired algorithms depend on defining useful perturbation strategies for exploring the conformational space, which is a difficult task for large proteins because such systems are typically more constrained and exhibit complex motions. In this article, we introduce two methodologies for maintaining and enhancing diversity in robotics-inspired conformational sampling. The first method addresses algorithms based on coverage estimates and leverages the use of a low-dimensional projection to define a global coverage grid that maintains coverage across concurrent runs of sampling. The second method is an automatic definition of a perturbation strategy through readily available flexibility information derived from B-factors, secondary structure, and rigidity analysis. Our results show a significant increase in the diversity of the conformations sampled for proteins consisting of up to 500 residues when applied to a specific robotics-inspired algorithm for conformational sampling. The methodologies presented in this article may be vital components for the scalability of robotics-inspired approaches. PMID- 29035573 TI - Field-based investigation on phytoremediation potentials of Lemna minor and Azolla filiculoides in tropical, semiarid regions: Case of Ethiopia. AB - This study investigated the concurrent accumulation of eight heavy metals by two floating aquatic macrophytes (Lemna minor and Azolla filiculoides) cultivated in ambient media and blended wastewaters in the semiarid regions of Ethiopia. Both species accumulated heavy metals in varying degrees with a significant concentration gradient within the immediate water media. Highest bioconcentration factor (BCF) was determined for Mn and Fe in both plants. Results revealed that L. minor was high phytoaccumulator for Fe, Mn, Zn, and Co but moderate for Cd, Cu, Ni, and Cr. On the other hand, A. filiculoides was a high accumulator for Fe, Mn, Zn, and Cu, but its potency was moderate for Co, Cr, and Ni, but lower for Cd. Both species exhibited significant difference in accumulating Co, Zn, and Mn (p < 0.05). In general, the BCFs for both plants were comparable within the same treatment. In this study, stronger associations between the heavy metal concentrations in the plant tissues and in the grown water media were observed for A. filiculoides. PMID- 29035575 TI - HetFHMM: A Novel Approach to Infer Tumor Heterogeneity Using Factorial Hidden Markov Models. AB - Cancer arises from successive rounds of mutations, resulting in tumor cells with different somatic mutations known as clones. Drug responsiveness and therapeutics of cancer depend on the accurate detection of clones in a tumor sample. Recent research has considered inferring clonal composition of a tumor sample using computational models based on short read data of the sample generated using next generation sequencing (NGS) technology. Short reads (segmented DNA parts of different tumor cells) are noisy; therefore, inferring the clones and their mutations from the data is a difficult and complex problem. We develop a new model called HetFHMM, based on factorial hidden Markov models, to infer clones and their proportions from noisy NGS data. In our model, each hidden chain represents the genomic signature of a clone, and a mixture of chains results in the observed data. We make use of Gibbs sampling and exponentiated gradient algorithms to infer the hidden variables and mixing proportions. We compare our model with strong models from previous work (PyClone and PhyloSub) based on both synthetic data and real cancer data on acute myeloid leukemia. Empirical results confirm that HetFHMM infers clonal composition of a tumor sample more accurately than previous work. PMID- 29035574 TI - A 6-Month Open-Label Extension Study of Vortioxetine in Pediatric Patients with Depressive or Anxiety Disorders. AB - OBJECTIVES: In this 6-month open-label extension (OLE) of NCT01491035 (a 14-day, open-label, pharmacokinetic/safety lead-in study), the long-term safety and tolerability of vortioxetine (5-20 mg/day) were investigated in children and adolescents with a DSM-IV-TRTM diagnosis of depressive or anxiety disorder in the United States or Germany. The study also was designed to provide data to inform dose selection and titration in future pediatric studies with vortioxetine. METHODS: Safety evaluations included spontaneously reported adverse events (AEs), the Columbia Suicide Severity Rating Scale (C-SSRS), and the Pediatric Adverse Events Rating Scale (PAERS; clinician administered). Clinical effectiveness was determined by Clinical Global Impressions. Comorbid attention deficit/hyperactivity disorder was permitted, including concomitant use of stimulant medication (US sites only). RESULTS: Of the 47 patients who completed the lead-in period, 41 continued into the OLE. Most patients (n = 39 [95%]) continued their previous dose regimen. Twenty-one patients (51%) withdrew during the OLE; the most common primary reasons were administrative [n = 8], AEs [n = 4], and lack of efficacy [n = 3]. Thirty-five patients (85%) had >=1 AE, 86% of which were mild or moderate in severity. Five patients (12%) reported a severe AE, none of which was considered related to study medication. The most common AEs (>=10%) were headache (27%), nausea (20%), dysmenorrhea (females; 19%), and vomiting (15%), with no relationship between AE intensity and age or dose. Five patients reported instances of suicidal ideation during the OLE, one of whom also reported this during the lead-in period. Two patients had nonsuicidal self injurious behavior; one had a nonfatal suicide attempt. Throughout the study, there was a decrease over time in the incidence and intensity of AEs collected using the PAERS. Effectiveness assessment indicated a trend toward improvement based on numeric results. CONCLUSION: This OLE confirms the findings from the lead-in study, which concluded that a dosing strategy of 5-20 mg/day is safe, well tolerated, and suitable for future clinical studies of vortioxetine in pediatric patients. PMID- 29035576 TI - Inter- and Intrarater Reliabilities of the Test of Gross Motor Development-Third Edition Among Experienced TGMD-2 Raters. AB - The purpose of this study was to examine the inter- and intrarater reliabilities of the Test of Gross Motor Development-third edition (TGMD-3). The TGMD-3 was administered to 10 typically developing children. Five raters with experience using the Test of Gross Motor Development-second edition (TGMD-2) scored the digitally recorded performances and then rescored the same performances after a period of 2 weeks. Intraclass correlation (ICC) was used to examine both inter- and intrarater reliabilities of scores. Interrater reliability for the total score, locomotor subscale, and ball skills subscale (ICC: 0.92-0.96) were all excellent, while individual skills (ICC: 0.51-0.93) had fair-to-excellent reliability. Intrarater reliability across all raters was also excellent (ICC: 0.77-0.98) but varied widely for individual raters (ICC: 0.28-1.00) including multiple examples of poor reliability. While raters experienced with the TGMD-2 can produce consistent scores for TGMD-3 total scale and subscales, additional training is needed to improve skill-specific reliability. PMID- 29035578 TI - Load Monitoring Variables in Training and Competition Situations: A Systematic Review Applied to Wheelchair Sports. AB - The aim of this review was to identify the main variables for load monitoring in training and competition situations in wheelchair sports. Studies were identified from a systematic search of three databases (PubMed, Web of Science, and SportDiscuss), with search phrases constructed from MeSH terms, alone or in combination, limited to English-language literature, and published up to January 2016. Our main findings were that variables related to external load (distance, speed, and duration) are used to monitor load in competition. In training situations, researchers have used variables related to internal load (heart rate and VO2); in both training and competition situations, researchers used internal load measurements (training impulse and ratings of perceived exertion). We conclude that the main variables for load monitoring in competitive situations were distance, speed, and duration, whereas the variables for training situations were heart rate, VO2, training impulse, and ratings of perceived exertion. PMID- 29035579 TI - Beta-Barrel Detection for Medium Resolution Cryo-Electron Microscopy Density Maps Using Genetic Algorithms and Ray Tracing. AB - Cryo-electron microscopy (cryo-EM) is a technique that produces three-dimensional density maps of large protein complexes. This allows for the study of the structure of these proteins. Identifying the secondary structures within proteins is vital to understanding the overall structure and function of the protein. The [Formula: see text]-barrel is one such secondary structure, commonly found in lipocalins and membrane proteins. In this article, we present a novel approach that utilizes genetic algorithms, kd-trees, and ray tracing to automatically detect and extract [Formula: see text]-barrels from cryo-EM density maps. This approach was tested on simulated and experimental density maps with zero, one, or multiple barrels in the density map. The results suggest that the proposed approach is capable of performing automatic detection of [Formula: see text] barrels from medium resolution cryo-EM density maps. PMID- 29035580 TI - Mutation Sensitivity Maps: Identifying Residue Substitutions That Impact Protein Structure Via a Rigidity Analysis In Silico Mutation Approach. AB - Understanding how an amino acid substitution affects a protein's structure can aid in the design of pharmaceutical drugs that aim at countering diseases caused by protein mutants. Unfortunately, performing even a few amino acid substitutions in vitro is both time and cost prohibitive, whereas an exhaustive analysis that involves systematically mutating all amino acids in the physical protein is infeasible. Computational methods have been developed to predict the effects of mutations, but even many of them are computationally intensive or are else dependent on homology or experimental data that may not be available for the protein being studied. In this work, we motivate and present a computation pipeline whose only input is a Protein Data Bank file containing the 3D coordinates of the atoms of a biomolecule. Our high-throughput approach uses our ProMuteHT algorithm to exhaustively generate in silico amino acid substitutions at each residue, and it also includes an energy minimization option. This is in contrast to our previous work, where we analyzed the effects of in silico mutations to Alanine, Serine, and Glycine only. We exploit the speed of a fast rigidity analysis approach to analyze our protein variants, and develop a Mutation Sensitivity (MuSe) Map, to permit identifying residues that are most sensitive to mutations. We present a case study to show the degree to which a MuSe Map and whisker plots are able to locate amino acids whose mutations most affect a protein's structure as inferred from a rigidity analysis approach. PMID- 29035581 TI - Gene Expression as a Dosimeter in Irradiated Drosophila melanogaster. AB - Biological indicators would be of use in radiation dosimetry in situations where an exposed person is not wearing a dosimeter, or when physical dosimeters are insufficient to estimate the risk caused by the radiation exposure. In this work, we investigate the use of gene expression as a dosimeter. Gene expression analysis was done on 15,222 genes of Drosophila melanogaster (fruit flies) at days 2, 10, and 20 postirradiation, with X-ray exposures of 10, 1000, 5000, 10,000, and 20,000 roentgens. Several genes were identified, which could serve as a biodosimeter in an irradiated D. melanogaster model. Many of these genes have human homologues. Six genes showed a linear response (R2 > 0.9) with dose at all time points. One of these genes, inverted repeat-binding protein, is a known DNA repair gene and has a human homologue (XRCC6). The lowest dose, 10 roentgen, is very low for fruit flies. If the lowest dose is excluded, 13 genes showed a linear response with dose at all time points. This includes 5 of 6 genes that were linear with all radiation doses included. Of these 13 genes, 4 have human homologues and 8 have known functions. The expression of this panel of genes, particularly those with human homologues, could potentially be used as the biological indicator of radiation exposure in dosimetry applications. PMID- 29035582 TI - Video Feedback and 2-Dimensional Landing Kinematics in Elite Female Handball Players. AB - CONTEXT: In team handball, an anterior cruciate ligament injury often occurs during landing after a jump shot. Many intervention programs try to reduce the injury rate by instructing athletes to land more safely. Video is an effective way to provide feedback, but little is known about its influence on landing technique in sport-specific situations. OBJECTIVE: To test the effectiveness of a video-overlay feedback method on landing technique in elite handball players. DESIGN: Controlled laboratory study. SETTING: Laboratory. PATIENTS OR OTHER PARTICIPANTS: A total of 16 elite female handball players assigned to a control group (n = 8; age = 17.61 +/- 1.34 years, height = 1.73 +/- 0.06 m, mass = 69.55 +/- 4.29 kg) or video group (n = 8; age = 17.81 +/- 0.86 years, height = 1.71 +/- 0.03 m, mass = 64.28 +/- 6.29 kg). INTERVENTION(S): Both groups performed jump shots in a pretest, 2 training sessions, and a posttest. The video group received video feedback of an expert model with an overlay of their own jump shots in training sessions 1 and 2, whereas the control group did not. MAIN OUTCOME MEASURE(S): We measured ankle, knee, and hip angles in the sagittal plane at initial contact and peak flexion; range of motion; and Landing Error Scoring System (LESS) scores. One 2 * 4 repeated-measures analysis of variance was conducted to analyze the group, time, and interaction effects of all kinematic outcome measures and the LESS score. RESULTS: The video group improved knee and hip flexion at initial contact and peak flexion and range of motion. In addition, the group's average peak ankle flexion (12.0 degrees at pretest to 21.8 degrees at posttest) and LESS score (8.1 pretest to 4.0 posttest) improved. When we considered performance variables, no differences between groups were found in shot accuracy or vertical jump height, whereas horizontal jump distance in the video group increased over time. CONCLUSIONS: Overlay visual feedback is an effective method for improving landing kinematics during a sport-specific jump shot. Further research is warranted to determine the long-term effects and transfer to training and game situations. PMID- 29035583 TI - Resveratrol Suppresses Growth and Migration of Myelodysplastic Cells by Inhibiting the Expression of Elevated Cyclin D1 (CCND1). AB - Myelodysplastic syndromes (MDS) are a group of heterogeneous diseases characterized by poorly formed blood cells. We wanted to elucidate the underlying molecular mechanism to better determine pathogenesis, prognosis, diagnosis, and treatment for patients with MDS. We compared gene expression levels between normal and MDS tissue samples by immunohistochemical analysis. We studied the proliferation, survival, and migration of MDS cells using the EDU assay, colony formation, and transwell assays. We assessed the apoptotic rate and cell cycle status using flow cytometry and Hoechst staining. Finally, we evaluated RNA and protein expressions using polymerase chain reaction and Western blots, respectively. We found that resveratrol suppressed SKM-1 (an advanced MDS cell line) proliferation in a dose-dependent manner. Consistent with this finding, the EDU and colony formation assays also showed that resveratrol inhibited SKM-1 growth. Moreover, flow cytometry and Hoechst 33258 staining demonstrated that resveratrol induced apoptosis and a change in cell cycle status in SKM-1 cells, while the transwell assay showed that resveratrol reduced the migratory ability of SKM-1 cells. Resveratrol also decreased the expression of CCND1 (a gene that encodes the cyclin D1 protein) and increased expressions of KMT2A [lysine (K) specific methyltransferase 2A] and caspase-3, suggesting that resveratrol exerts its effect by regulating CCND1 in SKM-1 cells. In addition, a combination of resveratrol and the PI3K/AKT inhibitor LY294002 exhibited a stronger inhibitory effect on the SKM-1 cells, compared with resveratrol alone. Our study proved that resveratrol suppresses SKM-1 growth and migration by inhibiting CCND1 expression. This finding provides novel insights into the pathogenesis of MDS and might help develop new diagnosis and treatment for patients with MDS. PMID- 29035584 TI - Hybrid Fixation for Ankle Fusion in Diabetic Charcot Arthropathy. AB - BACKGROUND: Ankle fusion is difficult to achieve in the diabetic Charcot ankle Brodsky type 3a because of the poor quality of the bone and the inability to achieve a stable biomechanical construct. The aim of this study was to report the outcome of ankle fusion using a combination of an intramedullary nail and a circular external fixator in patients with diabetic Charcot arthropathy. METHODS: We prospectively studied 24 patients with diabetic Charcot arthropathy of the ankle who were treated by fusion of the tibiotalar joint using a combined retrograde intramedullary nail and Ilizarov external fixator. Their mean age was 50.7 +/- 6.9 (range, 43-62) years. The mean follow-up after surgery was 36.4 +/- 5.8 (range, 24-98) months. RESULTS: Twenty-two patients (92%) achieved clinical and radiographic solid bony fusion. No patients in this series needed amputation. All the patients were pain free, and the mean American Orthopaedic Foot & Ankle Society Score (AOFAS) improved significantly from 34.6 +/- 6.8 to 66.4 +/- 4.5 at the last follow-up. Two patients developed an ulcer over the heel due to a prominent nail. The ulcer healed after nail removal. Eight patients developed pin tract infection. CONCLUSION: We report a successful outcomes of ankle fusions using combined intramedullary nail locked only proximally and ring external fixator (hybrid fixation) in patients with diabetic Charcot arthropathy. LEVEL OF EVIDENCE: Level IV, case series. PMID- 29035586 TI - Hemoconcentration During Maximum Exercise in Miners with Chronic Intermittent Exposure to Hypobaric Hypoxia (3800 m). AB - : Moraga, Fernando A., Jorge Osorio, Rodrigo Calderon-Jofre, and Andres Pedreros. Hemoconcentration during maximum exercise in miners with chronic intermittent exposure to hypobaric hypoxia (3800 m). High Alt Med Biol. 19:15-20, 2018. OBJECTIVE: To evaluate the effect of maximum exercise on hemoconcentration in miners with chronic intermittent hypobaric hypoxia (CIHH) at 3800 m. MATERIALS AND METHODS: Sixteen miners with CIHH at high altitude (3800 m) were subjected to maximum exercise levels on a cycle ergometer, increasing exercise load by 50 W every 3 minutes at sea level and high altitude (3800 m). During exercise, arterial oxygen saturation and heart rate were measured. Blood samples were taken at each step to measure hemoglobin concentration and hematocrit. Arterial blood oxygen content was also calculated. RESULTS: At sea level, a decrease in arterial oxygen saturation to 92.1% +/- 2.5% was observed at 150 W and the hematocrit, hemoglobin concentration and oxygen content were not altered. At high altitude, arterial oxygen saturation decreased, reaching 88.2% +/- 4.9% at 50 W and remained constant during the entire exercise protocol. Hemoglobin concentration and hematocrit increased reaching 16.4 +/- 0.9 g/dL and 48.8% +/- 1.6%, respectively, at 100 W and were maintained until recovery. Arterial oxygen content was constant during exercise and increased in the recovery period. CONCLUSION: An increase in hemoglobin concentration during exercise compensates for the decline in arterial oxygen saturation, meanwhile arterial oxygen content remains constant. PMID- 29035587 TI - Computer-Aided Stroke-by-Stroke Visualization of Actual and Target Power Allows for Continuously Increasing Ramp Tests on Wind-Braked Rowing Ergometers. AB - PURPOSE: Ramp tests are continuously increasing exercise tests used for the determination of maximal oxygen uptake ( V O 2 max ), which is identifiable by a plateau in oxygen uptake despite increasing mechanical power output (LOAD). On wind-braked rowing ergometers (RowErg), it is hardly feasible to ensure a continuous increase in LOAD until test termination, as neither resistance nor stroke frequency is externally adjustable but depends on the rower. To enable ramp tests on RowErg, the authors produced visual stroke-by-stroke feedback showing target and actual LOAD to the rower. The software supports automatic test termination (TERMauto) if LOAD ceases to increase. The authors aimed to evaluate linearity of the LOAD increment and calculate the difference between TERMauto and test duration at subjective exhaustion. MATERIALS: Twenty-eight highly trained male rowers performed a ramp test until subjective exhaustion on RowErg, targeting an increment of 35 W.min-1. LOAD was measured as work per time via external force and position sensors and visualized on a computer screen. TERMauto was deactivated, but all data were logged. Test duration at subjective exhaustion was subsequently compared with virtual test duration at TERMauto calculated from the log files. RESULTS: Regression between time and LOAD was y = 167 + 34.6 W (r = .99). Individual correlations ranged from .97 to 1.0. TERMauto caused 12- to 35 s-shorter test durations than subjective exhaustion in 4 rowers, leading to an underestimation in V O 2 max not higher than 1.2% or 3.7%. CONCLUSION: This setup allows one to perform ramp tests on RowErg with continuously increasing LOAD until TERMauto. In particular cases V O 2 max might be slightly underestimated at TERMauto. PMID- 29035588 TI - External Match Loads of Footballers With Cerebral Palsy: A Comparison Among Sport Classes. AB - PURPOSE: To determine and compare the external match load, according to sport class (FT), of footballers with cerebral palsy (CP) during the International Federation of CP Football World Championships Qualification Tournament. METHODS: Forty-two international male footballers with CP participated in the data collection. The footballers with CP were classified according to their FT into 3 groups (ie, FT5/6, FT7, and FT8). External match load (ie, total distance covered, distance covered at different speeds, accelerations, decelerations, player load, peak metabolic power, and changes of directions) was collected for both halves during official matches with global positioning system devices. RESULTS: Players with lower impairment (FT8) covered more distance (effect size = 0.30-0.60) at high-intensity running (13.0-18.0 km.h-1) and sprinting (>18.0 km.h 1) and performed more (effect size = 0.29-1.08) accelerations, decelerations, and changes of direction at high intensity in matches than did other players (ie, FT5/6 and FT7 groups). CONCLUSION: Because high-intensity actions are relevant to football performance and there are differences caused by players' impairments, the International Federation of CP Football classification protocols should include high-intensity actions during the technical assessment as part of the procedures for determining the sport class of football players with CP. PMID- 29035589 TI - The activity of nintedanib in an animal model of allogenic left lung transplantation resembling aspects of allograft rejection. AB - AIM OF THE STUDY: The prevention and treatment of chronic lung allograft dysfunction (CLAD) after lung transplantation (LTx) remain unsatisfactory. Growth factors may play an important role in the development of CLAD. This study evaluated the effects of nintedanib, a receptor tyrosine kinase inhibitor, in the treatment of CLAD after experimental LTx. MATERIALS AND METHODS: A rat model of left lung allo-transplantation (Fisher 344 to Wistar Kyoto) was used to evaluate the effect of nintedanib (50 mg/kg per day) on the development of CLAD. Therapy with nintedanib began 2 days before LTx and ended on postoperative day (POD) 20 (n = 6) or 60 (n = 6). Nontreated animals who underwent LTx (n = 12) were used as controls, whereas naive lungs (n = 24) served as reference for physiological healthy organs without transplantation damage or medical effects. Acute and chronic rejection were evaluated on POD 20 and 60, respectively. RESULTS: Immunohistologic analysis showed a decrease in growth factors/receptors on POD 60 (nintedanib-treated vs. nontreated controls: platelet-derived growth factor (PDGF) A: [P <= 0.001]; PDGF receptor-alpha: [P <= 0.001]; vascular endothelial growth factor (VEGF) A: [P <= 0.001]; VEGF receptor-2: [P <= 0.001]). However, no reductions in fibrotic changes were observed in nintedanib-treated allografts compared with nontreated allografts. Although nintedanib treatment started before LTx none of the animals showed impaired wound healing. No dehiscence of the sutures of the bronchus, vessels or skin, or stenosis of the bronchus was found. CONCLUSION: In conclusion, while nintedanib reduced the expression of growth factors/receptors in a rat LTx model, a reduction in fibrotic alterations was not observed at POD 60. PMID- 29035590 TI - The Impact of Different Competitive Environments on Pacing and Performance. AB - PURPOSE: In real-life competitive situations, athletes are required to continuously make decisions about how and when to invest their available energy resources. This study attempted to identify how different competitive environments invite elite short-track speed skaters to modify their pacing behavior during head-to-head competition. METHODS: Lap times of elite 500-, 1000- and 1500-m short-track speed skating competitions between 2011 and 2016 (N = 34,095 races) were collected. Log-transformed lap and finishing times were analyzed with mixed linear models. The fixed effects in the model were sex, season, stage of competition, start position, competition importance, event number per tournament, number of competitors per race, altitude, and time qualification. The random effects of the model were athlete identity and the residual (within-athlete race-to-race variation). Separate analyses were performed for each event. RESULTS: Several competitive environments, such as the number of competitors in a race (a higher number of competitors evoked most likely a faster initial pace; coefficient of variation [CV] = 1.9-9.3%), the stage of competition (likely to most likely, a slower initial pace was demonstrated in finals; CV = -1.4% to 2.0%), the possibility of time qualification (most likely a faster initial pace; CV = 2.6-5.0%), and competition importance (most likely faster races at the Olympics; CV = 1.3-3.5%), altered the pacing decisions of elite skaters in 1000- and 1500-m events. Stage of competition and start position affected 500-m pacing behavior. CONCLUSIONS: As demonstrated in this study, different competitive environments evoked modifications in pacing behavior, in particular in the initial phase of the race, emphasizing the importance of athlete-environment interactions, especially during head-to-head competitions. PMID- 29035591 TI - Effect of Intensified Endurance Training on Pacing and Performance in 4000-m Cycling Time Trials. AB - Studies examining pacing strategies during 4000-m cycling time trials (TTs) typically ensure that participants are not prefatigued; however, competitive cyclists often undertake TTs when already fatigued. This study aimed to determine how TT pacing strategies and sprint characteristics of cyclists change during an intensified training period (mesocycle). Thirteen cyclists regularly competing in A- and B-grade cycling races and consistently training (>10 h/wk for 4 [1] y) completed a 6-wk training mesocycle. Participants undertook individually prescribed training, using training stress scores (TrainingPeaks, Boulder, CO), partitioned into a baseline week, a build week, 2 loading weeks (designed to elicit an overreached state), and 2 recovery weeks. Laboratory-based tests (15-s sprint and TT) and Recovery-Stress Questionnaire (RESTQ-52) responses were repeatedly undertaken over the mesocycle. TT power output increased during recovery compared with baseline and loading weeks (P = .001) with >6-W increases in mean power output (MPO) detected for 400-m sections (10% bins) from 1200 to 4000 m in recovery weeks. Decreases in peak heart rate (P < .001) during loading weeks and postexercise blood lactate (P = .005) during loading week 2 and recovery week 1 were detected. Compared with baseline, 15-s sprint MPO declined during loading and recovery weeks (P < .001). An interaction was observed between RESTQ-52 total stress score with a 15-s sprint (P = .003) and with a TT MPO (P = .04), indicating that participants who experienced greater stress during loading weeks exhibited reduced performance. To conclude, intensified endurance training diminished sprint performance but improved 4000-m TT performance, with a subtle change in MPO evident over the last 70% of TTs. PMID- 29035592 TI - Returners Exhibit Greater Jumping Performance Improvements During a Peaking Phase Compared With New Players on a Volleyball Team. AB - PURPOSE: To determine if jumping-performance changes during a peaking phase differed among returners and new players on a female collegiate volleyball team and to determine which variables best explained the variation in performance changes. METHODS: Fourteen volleyball players were divided into 2 groups returners (n = 7) and new players (n = 7)-who completed a 5-wk peaking phase prior to conference championships. Players were tested at baseline before the preseason on measures of the vastus lateralis cross-sectional area using ultrasonography, estimated back-squat 1-repetition maximum, countermovement jump height (JH), and relative peak power on a force platform. Jumping performance, rating of perceived exertion training load, and sets played were recorded weekly during the peaking phase. RESULTS: There were moderate to very large (P < .01, Glass Delta = 1.74) and trivial to very large (P = .07, Delta = 1.09) differences in JH and relative peak power changes in favor of returners over new players, respectively, during the peaking phase. Irrespective of group, 7 of 14 players achieved peak JH 2 wk after the initial overreach. The number of sets played (r = .78, P < .01) and the athlete's preseason relative 1-repetition maximum (r = .54, P = .05) were the strongest correlates of JH changes during the peaking phase. CONCLUSIONS: Returners achieved greater improvements in jumping performance during the peaking phase compared with new players, which may be explained by the returners' greater relative maximal strength, time spent competing, and training experience. Thus, volleyball and strength coaches should consider these factors when prescribing training during a peaking phase to ensure their players are prepared for important competitions. PMID- 29035593 TI - The Impact of Body Mass Index and Waist Circumference on Health-related Quality of Life Among Colorectal Cancer Survivors: Results from the PROFILES Registry. AB - BACKGROUND: We aimed to assess the association of waist circumference (WC) and body mass index (BMI) with health-related quality of life (HRQL) among colorectal cancer (CRC) survivors. METHODS: CRC survivors diagnosed between 2000 and 2009 completed questionnaires in August 2013 (with self-reported weight, height, and self-assessed WC) and January 2014 (with HRQL using the EORTC-QLQ-C30). Clinical characteristics were retrieved from the Netherlands Cancer Registry. In multivariable linear regression analyses associations of BMI only, WC only and both BMI and WC with HRQL outcomes were assessed. RESULTS: 1,111 CRC survivors were included of whom 34% had a normal weight (18.5 <= BMI < 25 kg/m2), 49% had overweight (25 <= BMI < 30 kg/m2), 17% had obesity (BMI >= 30 kg/m2), and 44% had an increased WC (i.e., >102 and >88 cm for men and women, respectively). Both BMI and WC were separately associated with worse global health status, functioning, and more symptoms of fatigue. Increased WC was associated with lower physical, role and emotional functioning, regardless of BMI, with average differences ranging between 3 and 5 points. CONCLUSION: Future research on HRQL among CRC survivors should consider both BMI and WC. Furthermore, weight reduction trials should not only focus on general weight loss but also on the loss of abdominal fat. PMID- 29035594 TI - Total Body Water Dynamics Estimated with Bioelectrical Impedance Vector Analysis and B-Type Natriuretic Peptide After Exposure to Hypobaric Hypoxia: A Field Study. AB - Strapazzon, Giacomo, Matiram Pun, Tomas Dal Cappello, Emily Procter, Piergiorgio Lochner, Hermann Brugger, and Antonio Piccoli. Total body water dynamics estimated with bioelectrical impedance vector analysis and B-type natriuretic peptide after exposure to hypobaric hypoxia: A field study. High Alt Med Biol. 18:384-391, 2017.-The relationship between total body water (TBW) dynamics and N terminal pro-B-type natriuretic peptide (NT-proBNP), a stable metabolite of B type natriuretic peptide, during acute high altitude exposure is not known. To investigate this, we transported 19 healthy lowland subjects to 3830 m with a helicopter after baseline measurements (262 m). The physiological measurements and clinical assessments were taken at 9, 24, 48, and 72 hours and on the eighth day of altitude exposure. A bioelectrical impedance vector analysis (BIVA) from height corrected Resistance-Reactance (R-Xc graph) was used to estimate TBW status. NT-proBNP was measured from venous blood samples. The changes in impedance vector were lengthened at 9 (p = 0.011), 48 (p = 0.033), and 72 hours (p = 0.015) indicating dehydration compared to baseline. However, there was no dehydration at 24 hours (p > 0.05) from the baseline and the subjects trended to get euhydrated from 9 to 24 hours (p = 0.097). The maximum percent changes in vector length from the baseline were within 10%-15%. There was a significant increase of natural logarithm (ln)(NT-proBNP) after ascent with a peak at 24 hours, although similarly to BIVA values, ln(NT-proBNP) returned to baseline after 8 days of altitude exposure. The changes in impedance vector length were not correlated with the changes in ln(NT-proBNP) (r = -0.101, p = 0.656). In conclusion, the dehydration at high altitude as reflected by 10%-15% vector lengthening falls within "appropriate dehydration" in healthy lowland subjects. NT-proBNP does not simply reflect the TBW status during acute high altitude exposure and needs further investigation. PMID- 29035595 TI - The Influence of Physical Qualities on Activity Profiles of Female Australian Football Match Play. AB - PURPOSE: The transition of female Australian football (AF) players from amateur to semielite competitions has the potential for athletes to be underprepared for match play. To gain an understanding of the match demands of female football, the aims of this study were to highlight the physical qualities that discriminate selected and nonselected female AF players, investigate activity profiles of female AF players, and gain an understanding of the influence of physical qualities on performance in female AF Methods: Twenty-two female AF state academy players (mean [SD]: age = 23.2 [4.5] y) and 27 nonselected players (mean [SD]: age = 23.4 [4.9] y) completed a Yo-Yo intermittent recovery test level 1, countermovement jump, and 30-m sprint tests were completed prior to the competitive season. During 14 matches, players wore global positioning system units to describe the running demands of match play. RESULTS: Selected players were faster over 30 m (ES = 0.57; P = .04) and covered greater distances on the Yo-Yo IR1 (ES = 1.09; P < .001). Selected midfielders spent greater time on the field and covered greater total distances (ES = 0.73-0.85; P < .01). Players faster over 5 m (r = -.612) and 30 m (r = -.807) and who performed better on the Yo-Yo IR1 (r = .489) covered greater high-speed distances during match play. CONCLUSIONS: An emphasis should be placed on the development of physical fitness in this playing group to ensure optimal preparation for the national competition. PMID- 29035596 TI - The Elevated Track in Pole Vault: An Advantage During Run-Up? AB - BACKGROUND: Approach speed is a major determinant of pole-vault performance. Athletic jump events such as long jump, triple jump, and pole vault can utilize an elevated track for the runway. Feedback from athletes indicates a benefit of using an elevated track on their results. However, there is no evidence that elevated tracks increase athletes' performance. PURPOSE: To investigate the potential advantage of using an elevated track during elite pole-vault competitions on run-up speed parameters. METHODS: Performance and run-up criteria (speed, stride rate, contact, and aerial time) were measured from 20 high-level male pole-vaulters during official competitions on either a regular or an elevated track. Parameters comparisons were made between both conditions, and run up parameters were confronted to speed modification on the elevated track. RESULTS: Statistical analyses indicated that for the elevated track, there was a small improvement in final speed (1.1%), stride rate (1.1%), and takeoff distance (3.1%) and a small reduction in aerial time (-1.9%). The study highlighted different individual responses depending on athletes' capabilities. The authors noted that speed improvement was largely correlated with stride-rate improvement (r = .61) and contact-time reduction (r = -.51) for slower athletes. CONCLUSIONS: Elevated tracks can increase final approach speed in pole vault and positively influence performance. Interindividual responses were observed in these findings. PMID- 29035597 TI - Influence of 2-Weeks Ingestion of High Chlorogenic Acid Coffee on Mood State, Performance, and Postexercise Inflammation and Oxidative Stress: A Randomized, Placebo-Controlled Trial. AB - This study measured the influence of 2-weeks ingestion of high chlorogenic acid (CQA) coffee on postexercise inflammation and oxidative stress, with secondary outcomes including performance and mood state. Cyclists (N = 15) were randomized to CQA coffee or placebo (300 ml/day) for 2 weeks, participated in a 50-km cycling time trial, and then crossed over to the opposite condition with a 2-week washout period. Blood samples were collected pre- and postsupplementation, and immediately postexercise. CQA coffee was prepared using the Turkish method with 30 g lightly roasted, highly ground Hambela coffee beans in 300 ml boiling water, and provided 1,066 mg CQA and 474 mg caffeine versus 187 mg CQA and 33 mg caffeine for placebo. Plasma caffeine was higher with CQA coffee versus placebo after 2-weeks (3.3-fold) and postexercise (21.0-fold) (interaction effect, p < .001). Higher ferric reducing ability of plasma (FRAP) levels were measured after exercise with CQA coffee versus placebo (p = .01). No differences between CQA coffee and placebo were found for postexercise increases in plasma IL-6 (p = .74) and hydroxyoctadecadienoic acids (9 + 13 HODEs) (p = .99). Total mood disturbance (TMD) scores were lower with CQA coffee versus placebo (p = .04). 50-km cycling time performance and power did not differ between trials, with heart rate and ventilation higher with CQA coffee, especially after 30 min. In summary, despite more favorable TMD scores with CQA coffee, these data do not support the chronic use of coffee highly concentrated with chlorogenic acids and caffeine in mitigating postexercise inflammation or oxidative stress or improving 50-km cycling performance. PMID- 29035598 TI - Rating of Perceived Exertion During Concentric and Eccentric Cycling: Are We Measuring Effort or Exertion? AB - : Despite the terms' often being used interchangeably, it has been suggested that perceptions of effort and perceptions of exertion may differ. Eccentric (ECC) cycling may provide a model of exercise by which differences between these perceptions can be examined. PURPOSE: To examine and compare perceptions of effort and exertion during ECC and concentric (CONC) cycling at 4 intensities. METHODS: Ten healthy male participants (mean [SD]: age = 29.8 [2.3] y) performed an incremental cycling test for the determination of maximal aerobic power output, followed in a randomized and crossover design, by four 5-min bouts (30%, 60%, 80%, and maximal) of either ECC or CONC cycling. Through each bout, participants were asked to report their perceived effort, exertion, and muscle pain. Heart rate and oxygen consumption were continuously recorded throughout each bout. RESULTS: Perceived exertion was greater for CONC at 30% (8.5 [1.5] vs 7.1 [1.8]; P = .01), 60% (12.4 [1.4] vs 10.3 [2.0]; P = .01), 80% (15.8 [1.7] vs 12.4 [2.5]; P < .01), and maximal (17.2 [1.3] vs 15.6 [1.8]; P = .03) in comparison with ECC. Perceptions of effort and pain were similar between CONC and ECC. Heart rate and oxygen consumption were greater during CONC than ECC. CONCLUSIONS: Perceived exertion was greater during CONC compared with ECC cycling, yet effort was similar between conditions despite different physiological stress. Such findings have implications for understanding the development of such perceptions during exercise. PMID- 29035599 TI - Progressive Dehydration in Junior Laser Class Sailors During World Championship. AB - The purpose of this article is to assess the hydration status of elite young sailing athletes during World Championship competition. Twelve young, elite, male, Laser Class sailors (age: 15.8 +/- 1.1 y, height: 1.74 +/- 0.1 m, weight: 65.1 +/- 1.5 kg, body fat: 12.5 +/- 3.1%, training experience: 7.0 +/- 1.2 y) participated in this descriptive study. After three-day baseline bodyweight measurements, hydration status was assessed via pre- and post-race body weights, urine-specific gravity, and thirst ratings via a visual analog scale during four consecutive days of racing. Measurements and data collection took place at the same time each racing day, with mean environmental temperature, humidity, and wind speed at 23.0 +/- 0.8 degrees C, 64-70%, and 9 +/- 1 knots, respectively. Average racing time was 130 +/- 9 min. Body weight was significantly decreased following each race-day as compared to prerace values (Day 1: -1.1 +/- 0.2, Day 2: -2.5 +/- 0.1, Day 3: -2.8 +/- 0.1, and Day 4: -3.0 +/- 0.1% of body weight; p < 0.05). The participants exhibited dehydration of -2.9 +/- 0.2 and -5.8 +/- 0.2% of body weight before and after the fourth racing day as compared to the three day baseline body weight. Urine-specific gravity (pre-post -> Day 1: 1.014-1.017; Day 2: 1.019-1.024; Day 3: 1.021-1.026; Day 4: 1.022-1.027) and thirst (pre-post > Day 1: 2.0-5.2; Day 2: 3.2-5.5; Day 3: 3.7-5.7; Day 4: 3.8-6.8) were also progressively and significantly elevated throughout the four days of competition. The data revealed progressive dehydration throughout four consecutive days of racing as indicated by decreased body weight, elevated urine concentration, and high thirst. PMID- 29035600 TI - Effect of the Pacing Strategies on the Open-Water 10-km World Swimming Championships Performances. AB - PURPOSE: To (1) compare the pacing strategies of different-level open-water swimmers during the 10-km race of the FINA 2015 Swimming World Championships and (2) relate these pacing strategies to the race performance. METHODS: Final and intermediate split times, as well as intermediate race positions, from the 10-km race participants (69 men and 51 women) were collected from the public domain and were divided into 5 groups (G1-G5) depending on their finishing positions. RESULTS: Medalists and finalists (G1 and G2, respectively) presented an even pacing profile with swimming velocities similar to those of the less successful swimmers (G3-G5) on the initial and middle stages of the race but a 1.5-3% increase in swimming velocity in the last quarter of the race. This acceleration toward the end of the race, or "end spurt," was largely related to the race performance and was not observed in the G3 and G4 (even-paced profile) or G5 (positive pacing profile) groups. Intermediate race positions and lap rankings were negatively related to finishing position, indicating a delayed positioning of the most successful swimmers at 25%, 50%, and 75% of race distance. CONCLUSIONS: The adoption of a conservative starting strategy by open-water swimmers with a negative pacing profile and delayed partial positioning seems to increase the chances of overall race success, as it allows a fast end spurt that is closely related to successful finishing race positions. PMID- 29035601 TI - Skinfold Prediction Equations Fail to Provide an Accurate Estimate of Body Composition in Elite Rugby Union Athletes of Caucasian and Polynesian Ethnicity. AB - Body composition in elite rugby union athletes is routinely assessed using surface anthropometry, which can be utilized to provide estimates of absolute body composition using regression equations. This study aims to assess the ability of available skinfold equations to estimate body composition in elite rugby union athletes who have unique physique traits and divergent ethnicity. The development of sport-specific and ethnicity-sensitive equations was also pursued. Forty-three male international Australian rugby union athletes of Caucasian and Polynesian descent underwent surface anthropometry and dual-energy X-ray absorptiometry (DXA) assessment. Body fat percent (BF%) was estimated using five previously developed equations and compared to DXA measures. Novel sport and ethnicity-sensitive prediction equations were developed using forward selection multiple regression analysis. Existing skinfold equations provided unsatisfactory estimates of BF% in elite rugby union athletes, with all equations demonstrating a 95% prediction interval in excess of 5%. The equations tended to underestimate BF% at low levels of adiposity, whilst overestimating BF% at higher levels of adiposity, regardless of ethnicity. The novel equations created explained a similar amount of variance to those previously developed (Caucasians 75%, Polynesians 90%). The use of skinfold equations, including the created equations, cannot be supported to estimate absolute body composition. Until a population specific equation is established that can be validated to precisely estimate body composition, it is advocated to use a proven method, such as DXA, when absolute measures of lean and fat mass are desired, and raw anthropometry data routinely to derive an estimate of body composition change. PMID- 29035602 TI - Effect of Preexercise Ingestion of Modified Amylomaize Starch on Glycemic Response While Cycling. AB - Amylomaize-7 is classified as a resistant corn starch and is 68% digestible. When modified by partial hydrolysis in ethanol and hydrochloric acid its digestibility is 92%, yet retains its low glycemic and insulinemic properties. The purpose of this study was to characterize the metabolic response when modified amylomaize-7 or dextrose is consumed in the hour before exercise, and to compare the effect on performance of a brief high-intensity cycling trial. Ten male, trained cyclists were given 1 g/kg body mass of dextrose (DEX) or modified amylomaize-7 (AMY-7) or a flavored water placebo (PL) 45 min prior to exercise on a cycle ergometer. A 15 min ride at 60% Wmax was immediately followed by a self-paced time trial (TT) equivalent to 15 min at 80% Wmax. When cyclists consumed DEX, mean serum glucose concentration increased by 3.3 +/- 2.1 mmol/L before exercise, compared to stable serum glucose observed for AMY-7 or PL. Glucose concentrations returned to baseline by pre-TT in all treatments. However, the mean post-TT glucose concentration of the DEX group was significantly lower than baseline, AMY-7, or PL. Serum insulin concentration increased nine-fold from baseline to preexercise in the DEX trial, whereas PL or AMY-7 remained unchanged. Time required to complete the performance trial was not significantly different between DEX, AMY-7 or PL. Preexercise ingestion of modified amylomaize-7 compared to dextrose resulted in a more stable serum glucose concentration, but did not offer a performance advantage in this high-intensity cycling trial. PMID- 29035603 TI - Competition Level Not Associated With Diet Quality in Marching Artists. AB - Marching artists are a unique group of athletes whose performance can be influenced by nutrition. Because physical demands are thought to be moderate to high, adequate energy and a variety of nutrient-dense foods are needed. The purpose of this study was to examine diet quality, physical activity, and eating behavior of marching artists across elite and nonelite competition levels. This cross-sectional analysis used the validated National Cancer Institute Diet History Questionnaire II, International Physical Activity Questionnaire, and Eating Behavior Patterns Questionnaire. Diet quality was assessed using the Healthy Eating Index (HEI) 2010. Marching artists who participated in marching band in 2015 were eligible. Those in Drum Corps International (DCI) were considered part of the elite level; all others were considered nonelite. Chi square analyses assessed associations between categorical variables and competition level, and independent sample t-tests assessed differences between continuous variables among competition level. Participants (n = 323) included 228 (71%) DCI members and 95 (29%) non-DCI members who reported a mean age of 19.8 +/ 1.9 years. DCI members reported higher physical activity levels (p < 0.001) and fewer meal-skipping behaviors compared to non-DCI members (p < 0.001). The overall mean HEI score was 58.8 +/- 10.3, with no difference between competition levels. Only one participant overall (<1%) met the recommended intake level of whole grains. Additionally, 2% of participants met the sodium restriction recommendation and 7% met the empty calorie upper limit. Suboptimal diet quality combined with high levels of physical activity is a problem for marching artists that should be addressed through carefully planned interventions. PMID- 29035604 TI - Biomarkers for differentiation of patients with asthma and chronic obstructive pulmonary disease. AB - OBJECTIVE: Asthma and chronic obstructive pulmonary disease (COPD) are airflow limitation diseases with similar clinical manifestations but different pathophysiologic mechanisms. To implement the appropriate treatment, it is important to distinguish between asthma and COPD which sometimes might result difficult in clinical practice. We evaluated biomarkers to distinguish between asthma and COPD. METHODS: Blood eosinophil counts and fractional exhaled nitric oxide (FeNO) levels were analyzed. Serum periostin, interleukin-25 (IL-25), and immunoglobulin E (IgE) concentrations were compared between patients with asthma (n = 60), including atopic-asthma (n = 30) and non-atopic asthma (n = 30), and patients with COPD (n = 30). RESULTS: Significantly higher peripheral blood eosinophil counts (p < 0.001), FeNO levels (p < 0.001), and total serum IgE (P = 0.003) concentrations, but not serum periostin (p = 0.584) or serum IL-25 (p = 0.085) concentrations, were detected in patients with asthma compared to patients with COPD. Serum periostin and IgE concentrations were increased in patients with atopic-asthma compared with those with non-atopic asthma and COPD (p < 0.05). The FeNO levels were significantly correlated with the peripheral blood eosinophil counts (r = 0.430, p = 0.001) and serum IL-25 concentrations (r = 0.338, p = 0.009) in patients with asthma. The serum periostin concentrations were also correlated with the serum IgE concentrations (r = 0.375, p = 0.003)and FeNO levels (r = 0.291, p = 0.024) in patients with asthma. Asthma patients were effectively differentiated from COPD patients based on the FeNO levels (p < 0.001) and peripheral blood eosinophil counts (p < 0.001). CONCLUSIONS: FeNO levels and peripheral blood eosinophil counts were useful biomarkers for distinguishing between patients with asthma and COPD. Serum periostin and IgE concentrations could be biomarkers for atopic asthma. PMID- 29035605 TI - A two-staged approach to developing and evaluating an ontology for delivering personalized education to diabetic patients. AB - Ontologies are often used in biomedical and health domains to provide a concise and consistent means of attributing meaning to medical terminology. While they are novices in terms of ontology engineering, the evaluation of an ontology by domain specialists provides an opportunity to enhance its objectivity, accuracy, and coverage of the domain itself. This paper provides an evaluation of the viability of using ontology engineering novices to evaluate and enrich an ontology that can be used for personalized diabetic patient education. We describe a methodology for engaging healthcare and information technology specialists with a range of ontology engineering tasks. We used 87.8% of the data collected to validate the accuracy of our ontological model. The contributions also enabled a 16% increase in the class size and an 18% increase in object properties. Furthermore, we propose that ontology engineering novices can make valuable contributions to ontology development. Application-specific evaluation of the ontology using a semantic-web-based architecture is also discussed. PMID- 29035606 TI - Awareness, perception and barriers to seeking information from online academic databases and medical journals as sources of information. AB - Medical students' use of online medical journals as a source of information is crucial in the learning pathway to become medical doctors. We conducted a cross sectional survey study among University medical students between December 2012 and March 2013 to assess their awareness, perceived usefulness, practices, and barriers to seeking information from online academic databases and medical journals. The response rate was 67.53%. The majority of the students knew of the availability of online academic databases and medical journals. The mean score for awareness (4.25 of possible 11.0), perceived usefulness (13.95 of possible 33.0), and practice (10.67 of possible 33.0) were low. The mean barrier score toward using online academic databases and medical journals was 25.41 (of possible 45.0). Multivariate findings showed that significant barriers associated with overall usage of online databases and medical journals were 1) not knowing where or how to locate databases and 2) unsureness of using the Boolean operators. Availability of full text subscriptions was found to be an important factor in using online databases. Study findings highlighted the need to increase awareness of academic databases' availability and increase training on ways to search online academic databases and medical journals. PMID- 29035607 TI - Accuracy of W' Recovery Kinetics in High Performance Cyclists-Modeling Intermittent Work Capacity. AB - PURPOSE: With knowledge of an individual's critical power and W', the SKIBA 2 model provides a framework with which to track W' balance during intermittent high-intensity work bouts. There are fears that the time constant controlling the recovery rate of W' (tauW') may require refinement to enable effective use in an elite population. METHODS: Four elite endurance cyclists completed an array of intermittent exercise protocols to volitional exhaustion. Each protocol lasted approximately 3.5-6 min and featured a range of recovery intensities, set in relation to the athlete's critical power (DCP). Using the framework of the SKIBA 2 model, the tauW' values were modified for each protocol to achieve an accurate W' at volitional exhaustion. Modified tauW' values were compared with equivalent SKIBA 2 tauW' values to assess the difference in recovery rates for this population. Plotting modified tauW' values against DCP showed the adjusted relationship between work rate and recovery rate. RESULTS: Comparing modified tauW' values against the SKIBA 2 tauW' values showed a negative bias of 112 (46) s (mean +/- 95% confidence limits), suggesting that athletes recovered W' faster than predicted by SKIBA 2 (P = .0001). The modified tauW'-DCP relationship was best described by a power function: tauW' = 2287.2 * DCP-0.688 (R2 = .433). CONCLUSIONS: The current SKIBA 2 model is not appropriate for use in elite cyclists, as it underpredicts the recovery rate of W'. The modified tauW' equation presented will require validation but appears more appropriate for high performance athletes. Individual tauW' relationships may be necessary to maximize the model's validity. PMID- 29035608 TI - F508del CFTR gene mutation in patients with allergic bronchopulmonary aspergillosis. AB - OBJECTIVE: The F508del mutation occurs in approximately 3.5% of Caucasian population of Northern Europe. Heterozygotes have increased risk for asthma and reduced pulmonary function. Allergic bronchopulmonary aspergillosis (ABPA) is more common in patients with cystic fibrosis (CF). We aimed to establish the frequency of F508del mutation in adult patients with ABPA. METHODS: A retrospective matched case-control study of CF genotyped patients with ABPA seen at the National Aspergillosis Centre was undertaken. Key data were collected retrospectively from medical records, including respiratory comorbidities, total IgE, Aspergillus IgG and IgE, and immunoglobulins. Cystic fibrosis transmembrane regulator (CFTR) gene mutation analysis included multiplex PCR and sequencing. RESULTS: From a cohort of 189 ABPA patients, 156 were screened for common mutations and variants in the CFTR gene. Eighteen were heterozygous for at least one CFTR mutation; 12 (7.7%) were heterozygous for the F508del, notably; 3 were heterozygous for the intron 8 5T variant; and 1 for an intronic variant of uncertain significance, c.3139 + 18C>T. Eight (67%) had asthma, 7 (58%) had CT defined bronchiectasis, 4 (33%) hypergammaglobulinemia (>16 g/L), 3 (25%) sinusitis and 1 (8%) chronic pulmonary aspergillosis. Eight (67%) had elevated Aspergillus IgG antibodies (42-98 mg/L), and 8 (67%) had total IgE above 1,000 KIU/L. Two individuals heterozygous for the F508del mutation and the TG12T5 variant were diagnosed with CF, leading to a de novo CF discovery rate of 1.3%. CONCLUSIONS: In our ABPA patient cohort, the presence of the delta F508 mutation was higher than that seen in general population. Genetic counseling for CFTR genotyping might be appropriate for these patients. PMID- 29035609 TI - Single-Surgeon Experience and Complications of a Fixed-Bearing Total Ankle Arthroplasty. AB - BACKGROUND: Total ankle arthroplasty (TAA) has historically resulted in inferior survivorship rates compared with total hip and knee arthroplasty, because of technical issues unique to ankle anatomy. In this study, a single-surgeon series of intra- and postoperative complications as well as resultant reoperations/revisions of the Tornier Salto Talaris, a fixed-bearing TAA prosthesis, were reviewed. METHODS: Medical records from index procedure to latest follow-up of primary TAA were reviewed. Complications were categorized according to the Glazebrook classification; additional complications were documented. Concurrent procedures were recorded, and radiographs were analyzed for alignment, subsidence, and cyst formation. Time to complication onset and learning curve analyses were performed. One hundred four Salto Talaris TAA prostheses (96 patients), with an average follow-up of 46 months, were included. RESULTS: Thirty-five complications were identified in 32 ankles with a 34% complication rate, resulting in 11 reoperations (5 TAA revisions). Technical error (n = 12), wound healing (n = 9), and aseptic loosening (n = 4) were the most common complications, and there were no statistically significant differences in demographics or follow-up duration between cases with versus without complications. In both the cohorts with and without complications, there were moderate, negative correlations between radiographically observed keel osteopenia and lucency (rho = -0.548, P = .00125, and rho = -0.416, P = .000303, respectively); also, in the complication cohort, a weak, positive correlation between subsidence and lucency (rho = 0.357, P = .0450) was found. CONCLUSION: Salto Talaris TAA survivorship and reoperation rates in our series were comparable with previous reports, using either the same or similar mobile-bearing prostheses; new information regarding complication, radiographic, and learning curve analyses was presented. LEVEL OF EVIDENCE: Level IV, retrospective case series. PMID- 29035610 TI - Critical assessment of health disparities across subpopulation groups through a social determinants of health perspective: The case of type 2 diabetes patients. AB - BACKGROUND: Studies on diabetes have shown that population subgroups have varying rates of medical events and related procedures; however, existing studies have investigated either medical events or procedures, and hence, it is unknown whether disparities exist between medical events and procedures. PURPOSE: The objective of this study is to investigate how diabetes-related medical events and procedures are different across population subgroups through a social determinants of health (SDH) perspective. METHODS: Because the purpose of this manuscript is to explore whether statistically significant health disparities exist across population subgroups regarding diabetes patients' medical events and procedures, group difference test methods were employed. Diabetes patients' data were drawn from the Cerner Health Facts(r) data warehouse. RESULTS: The study revealed systematic disparities across population subgroups regarding medical events and procedures. The most significant disparities were connected with smoking status, alcohol use, type of insurance, age, marital status, and gender. CONCLUSIONS: Some population subgroups have higher rates of medical events and yet receive lower rates of treatments, and such disparities are systematic. Socially constructed behaviors and structurally discriminating public policies in part contribute to such systematic health disparities across population subgroups. PMID- 29035611 TI - Are People Who Inject Drugs Frequent Users of Emergency Department Services? A Cohort Study (2008-2013). AB - BACKGROUND: Although people who inject drugs (PWID) have been described as frequent users of emergency services, the majority of research is cross-sectional and involves records from a single emergency department (ED). OBJECTIVES: We describe characteristics of state-wide ED presentations in a cohort of PWID, and compare presentation rates to the general population. We also examine characteristics associated with frequent ED use. METHODS: We used data from a retrospective linkage of public ED presentations from a cohort of 678 PWID between January 2008 and June 2013. Common principal diagnoses were described using the International Classification of Diseases, Tenth Revision, Australian Modification (ICD-10-AM) chapter headings. The ED presentation trend was estimated using negative-binomial regression. Characteristics associated with frequent use of EDs were identified using generalized estimating equations (GEEs). RESULTS: There were 3437 presentations over 4163.5 person-years (PY) and the most common principal diagnosis was injury, poisoning and other externalities (19%). ED presentations increased by 4% every six months (95% confidence interval (CI) 0.1%-0.8%) and were three times greater than the general population. A quarter (24%) of the cohort presented frequently, and they were more likely to have noninjury-related diagnoses and be aged below 30 years, and less likely to have nonurgent presentations and be male. CONCLUSIONS: PWID use EDs at a higher rate than the general population, and typically present with injuries and mental and behavioral disorders. Referrals to drug treatment, mental health, and social support services can improve patient care and reduce the burden on EDs. PMID- 29035612 TI - Enhanced Vitreous Imaging in Uveitis. AB - PURPOSE: To study the structural visibility of the posterior vitreous cavity and vitreoretinal interface using Spectral Domain-Optical Coherence Tomography in patients with uveitis using conventional, Enhanced Depth Imaging (EDI), Combined Depth Imaging (CDI), and Enhanced Vitreous Imaging (EVI) techniques. METHODS: It was an observational cross-sectional study of 59 eyes of 33 patients between age group 12-72 years (Median 43) diagnosed as uveitis with posterior segment manifestations underwent OCT using conventional, EDI, CDI, and EVI techniques. The visibility of posterior vitreous was graded in all the techniques. RESULTS: A statistically significant difference was seen in posterior vitreous visibility on comparing all four techniques. EVI showed better visibility of posterior vitreous cavity compared to all other techniques (P < 0.001). CONCLUSIONS: EVI technique provides better structural visibility of posterior vitreous compared to conventional, EDI, and CDI techniques. PMID- 29035613 TI - Quercetin-Induced AMP-Activated Protein Kinase Activation Attenuates Vasoconstriction Through LKB1-AMPK Signaling Pathway. AB - The vascular tone plays an important role in blood pressure and flow. It is influenced by the contraction of vascular smooth muscle cells (VSMCs), which in turn is regulated by the balance between the myosin light chain kinase (MLCK) and the phosphorylated myosin light chain (p-MLC). Quercetin is a common flavonoid which is found in many fruits and red wine. Although quercetin has been widely reported to be involved in cell proliferation, migration, and apoptosis in VSMCs, it has not yet been demonstrated whether quercetin is related to vasocontraction, a function regulated by the AMP-activated protein kinase (AMPK) signaling pathway. Accordingly, the aim of this study is to investigate the molecular mechanism through which the quercetin-activated LKB1-AMPK signaling pathway regulates the contraction of VSMCs. In cultured VSMCs, quercetin activated AMPK in a dose- and time-dependent manner. Quercetin inhibited the phenylephrine (PE) induced expression of MLCK and p-MLC through the LKB1-AMPK signaling pathway and decreased the mRNA level of MLCK. Adenovirus-AMPK DN alpha1 and AMPK DN alpha2 transduced VSMCs displayed higher p-MLC expression. Moreover, quercetin inhibited the PE-mediated contraction in rat aorta. These data suggest that the quercetin activated LKB1-AMPK signaling pathway regulates VSMC contraction by inhibiting MLCK and p-MLC; hence, it may be a therapeutic intervention for the treatment of cardiovascular disorders such as atherosclerosis and hypertension. PMID- 29035615 TI - Improving Mobility Performance in Wheelchair Basketball. AB - OBJECTIVE: This study aimed to investigate which characteristics of athlete, wheelchair and athlete-wheelchair interface are the best predictors of wheelchair basketball mobility performance. DESIGN: A total of 60 experienced wheelchair basketball players performed a wheelchair mobility performance test to assess their mobility performance. To determine which variables were the best predictors of mobility performance, forward stepwise linear regression analyses were performed on a set of 33 characteristics, including 10 athlete, 19 wheelchair, and 4 athlete-wheelchair interface characteristics. RESULTS: A total of 8 of the characteristics turned out to be significant predictors of wheelchair basketball mobility performance. Classification, experience, maximal isometric force, wheel axis height, and hand rim diameter-which both are interchangeable with each other and wheel diameter-camber angle, and the vertical distance between shoulder and rear wheel axis-which was interchangeable with seat height-were positively associated with mobility performance. The vertical distance between the front seat and the footrest was negatively associated with mobility performance. CONCLUSION: With this insight, coaches and biomechanical specialists are provided with statistical findings to determine which characteristics they could focus on best to improve mobility performance. Six out of 8 predictors are modifiable and can be optimized to improve mobility performance. These adjustments could be carried out both in training (maximal isometric force) and in wheelchair configurations (eg, camber angle). PMID- 29035614 TI - The Impact and Implication of Peripheral Vascular Leakage on Ultra-Widefield Fluorescein Angiography in Uveitis. AB - PURPOSE: To study if peripheral vascular leakage (PVL) on ultra-widefield fluorescein angiography (UWFFA) prognosticates complications of uveitis or necessitates treatment augmentation. METHODS: Retrospective cohort study of uveitis patients imaged with UWFFA and >=1 yr of follow-up. RESULTS: We included 73 eyes of 42 patients with uveitis. There was no difference in baseline, intermediate, final visual acuity (p = 0.47-0.95) or rates of cystoid macular edema (CME) (p = 0.37-0.87) in eyes with PVL vs. those without. Eyes with PVL receiving baseline treatment augmentation were more likely to have baseline CME but were not more likely to have impaired visual acuity at final follow-up. PVL was independently associated with treatment augmentation on generalized estimating equation analysis with multivariable linear regression (OR: 4.39, p = 0.015). CONCLUSIONS: PVL did not confer an increased risk of impaired VA or CME at >=1 yr follow-up but was possibly an independent driver of treatment augmentation. PMID- 29035616 TI - Role of Kindness in Cancer Care. AB - The wonders of high-tech cancer care are best complemented by the humanity of high-touch care. Simple kindnesses can help to diffuse negative emotions that are associated with cancer diagnosis and treatment-and may even help to improve patients' outcomes. On the basis of our experience in cancer care and research, we propose six types of kindness in cancer care: deep listening , whereby clinicians take the time to truly understand the needs and concerns of patients and their families; empathy for the patient with cancer, expressed by both individual clinicians and the care culture, that seeks to prevent avoidable suffering; generous acts of discretionary effort that go beyond what patients and families expect from a care team; timely care that is delivered by using a variety of tools and systems that reduce stress and anxiety; gentle honesty, whereby the truth is conveyed directly in well-chosen, guiding words; and support for family caregivers, whose physical and mental well-being are vital components of the care their loved ones receive. These mutually reinforcing manifestations of kindness-exhibited by self-aware clinicians who understand that how care is delivered matters-constitute a powerful and practical way to temper the emotional turmoil of cancer for patients, their families, and clinicians themselves. PMID- 29035617 TI - Role of Bone-Modifying Agents in Metastatic Breast Cancer: An American Society of Clinical Oncology-Cancer Care Ontario Focused Guideline Update Summary. PMID- 29035618 TI - Impact of Intensity-Modulated Radiotherapy on Health Care Costs of Patients With Anal Squamous Cell Carcinoma. AB - PURPOSE: Drivers of variation in the cost of care after chemoradiotherapy for the management of anal squamous cell carcinoma (SCC) have not been fully elucidated. We sought to characterize the direct and indirect impact of radiotherapy modality on health care costs among patients with anal SCC. PATIENTS AND METHODS: A retrospective cohort study was performed using the 2014 linkage of the SEER Medicare database. We identified 1,025 patients with anal SCC diagnosed between 2001 and 2011 and treated with chemoradiotherapy. Propensity score matching was used to balance baseline differences between patients treated with intensity modulated radiotherapy (IMRT) and those treated with three-dimensional conformal radiotherapy (3D-CRT). Differences in total, cancer-attributable, and procedure specific costs between groups were measured. RESULTS: Radiation-related, patient out-of-pocket, and total costs in the 1-year period after radiotherapy start were all higher for the IMRT group than the 3D-CRT group (median total cost, $35,890 v $27,262, respectively; P < .001). Patients who received IMRT had lower cumulative costs associated with urgent hospitalizations and emergency department visits at both 9 months and 1 year after treatment start compared with a matched cohort of patients who received 3D-CRT (median, $711 v $4,957 at 1 year, respectively; P = .021). CONCLUSION: Although total costs of care were higher for IMRT compared with 3D-CRT, primarily as a result of higher radiotherapy-specific costs, IMRT was associated with decreased unplanned health care utilization costs starting at 9 months after treatment start. Radiotherapy-centered episodes of care may need to encompass a longer time horizon to capture the full cost savings associated with more advanced radiation modalities. PMID- 29035620 TI - Effectiveness of Salted Ice Bag Versus Cryocompression on Decreasing Intramuscular and Skin Temperature. AB - CONTEXT: Rest, ice, compression, and elevation are commonly recommended immediately after injury. Traditionally, ice bag (IB) with elastic wrap compression has been utilized; however, recently intermittent cryocompression units are being used. Limited research has evaluated tissue temperature decreases with intermittent cryocompression units. OBJECTIVE: Evaluate magnitude of muscle and skin cooling. DESIGN: Repeated-measures counterbalanced study. SETTING: University research laboratory. PATIENTS OR OTHER PARTICIPANTS: Twelve healthy college-aged participants (4 males and 8 females; age = 23.08 [1.93] y; height = 171.66 [9.47] cm; mass = 73.67 [13.46] kg; subcutaneous thickness = 0.90 [0.35] cm) without compromised circulation or injury. INTERVENTION(S): Salted IB, GameReady (GR), and PowerPlay-ice bag (PP-ice) were applied to the posterior aspect of the nondominant calf for 30 minutes; participants underwent each treatment in counterbalanced order. MAIN OUTCOME MEASURE(S): Muscle temperature measured via 21-gauge catheter thermocouple; skin temperature measured via a surface thermocouple. Temperatures were recorded at baseline and during a 30 minute treatment. Correlations were evaluated between muscle and skin temperatures. RESULTS: Nonsignificant treatment * time interaction and nonsignificant main effect of treatment for intramuscular cooling. Mean Decrease From Baseline: IB, 6.4 degrees C (+/-2.8); GR, 5.4 degrees C (+/-1.1); PP-ice, 4.8 degrees C (+/-2.8). Nonsignificant treatment * time interaction for skin cooling (F20,200 = 1.440, P = .65, [Formula: see text], and observed beta = 0.773), but significant main effect for treatment (F10,100 = 5.279, P = .03, [Formula: see text], and observed beta = 1.00). Mean Decrease From Baseline: IB, 17.0 degrees C; GR, 16.4 degrees C; PP-ice, 14.6 degrees C. No significant correlation between intramuscular and skin temperatures in any condition at any time point. No significant correlation between adipose tissue thickness and maximum temperature decrease with any modality. CONCLUSIONS: Salted IB with elastic wrap compression, GR, and PP-ice produced equivalent intramuscular temperature decreases during the treatment period. PMID- 29035619 TI - Personalized medicine with biologics for severe type 2 asthma: current status and future prospects. AB - Asthma affects more than 300 million people worldwide and poses a large socioeconomic burden, particularly in the 5% to 10% of severe asthmatics. So far, each entry of new biologics in clinical trials has led to high expectations for treating all severe asthma forms, but the outcome has only been successful if the biologic, as add-on treatment, targeted specific patient subgroups. Indeed, we now realize that asthma is a heterogeneous disease with multiple phenotypes, based on distinct pathophysiological mechanisms, called endotypes. Thus, asthma therapy is gradually moving to a personalized medicine approach, tailored to individual's asthma endotypes identified through biomarkers. Here, we review the clinical efficacy of antibody-related therapeutics undergoing clinical trials, or those already approved, for the treatment of severe type 2 asthma. Biologics targeting type 2 cytokines have shown consistent efficacy, especially in patients with evidence of type 2 inflammation, suggesting that the future of asthma biologics is promising. PMID- 29035621 TI - Relationship Between Muscle Strength Asymmetry and Body Sway in Older Adults. AB - The purpose of this study was to investigate the relationship between muscle strength asymmetry and body sway while walking. We studied 63 older adult women. Strong side and weak side of knee extension strength, toe grip strength, hand grip strength, and body sway while walking were measured. The relationship between muscle strength asymmetry for each muscle and body sway while walking was evaluated using Pearson's correlation coefficient. Regarding the muscles recognized to have significant correlation with body sway, the asymmetry cutoff value causing an increased sway was calculated. Toe grip strength asymmetry was significantly correlated with body sway. Toe grip strength asymmetry causing an increased body sway had a cutoff value of 23.5%. Our findings suggest toe grip strength asymmetry may be a target for improving gait stability. PMID- 29035622 TI - Health Insurance and the Promise of Incrementalism. PMID- 29035623 TI - The Impact of Knee Injury History on Health-Related Quality of Life in Adolescent Athletes. AB - CONTEXT: Current evidence suggests that, despite returning to full participation, physically active adults with a previous knee injury experience lower health related quality of life (HRQOL) than those with no knee injury history. It is unknown if this relationship is present in adolescent athletes. OBJECTIVE: To determine the impact of knee injury history on HRQOL in adolescent athletes who were medically cleared for full participation. DESIGN: Cross-sectional. SETTING: Athletic training clinics. PARTICIPANTS: A convenience sample of 183 adolescent athletes, who were medically cleared for full participation, were grouped by self report of a previous knee injury: positive knee injury history (HIS; n = 36, age = 15.7 [1.4] y, height = 168.0 [11.9] cm, and weight = 71.8 [11.9] kg) and no knee injury history (NO-HIS; n = 147, age = 15.5 [1.4] y, height = 166.0 [10.5] cm, and weight = 67.6 [14.6] kg). INTERVENTIONS: Participants completed the Pediatric International Knee Documentation Committee form and Pediatric Quality of Life Inventory during their preparticipation examination. MAIN OUTCOME MEASURES: Generalized linear models were used to compare group differences for the total and subscale scores of the Pediatric International Knee Documentation Committee and Pediatric Quality of Life Inventory. RESULTS: Main effects of injury group indicated that the HIS group reported significantly lower scores than the NO-HIS group for the Pediatric International Knee Documentation Committee total score (P < .001; HIS = 79.2 [21.7], NO-HIS = 95.8 [8.6]) and for the Pediatric Quality of Life Inventory total (P = .001; HIS = 85.7 [10.9], NO HIS = 90.9 [7.3]), physical functioning (P = .002; HIS = 86.7 [13.6], NO-HIS = 92.1 [8.2]), school functioning (P = .01; HIS = 80.6 [12.4], NO-HIS = 86.8 [12.2]), and social functioning (P = .01; HIS = 89.3 [12.4], NO-HIS = 94.6 [8.9]) scores. No group differences were reported for the emotional functioning subscale (P = .13; HIS = 85.7 [17.7], NO-HIS = 89.7 [13.1]). No interactions or main effects of sex were reported (P > .05). CONCLUSIONS: Our findings suggest that, despite returning to full sport participation, adolescent athletes with a previous knee injury generally experience lower HRQOL than their peers with no knee injury history, specifically for knee-specific HRQOL, physical functioning, school functioning, and social functioning. Our results are similar to previous findings reported in college athletes and military cadets. PMID- 29035624 TI - Nurses' perceptions and problems in the usability of a medication safety app. AB - INTRODUCTION: The majority of medication apps support medication adherence. Equally, if not more important, is medication safety. Few apps report on medication safety, and fewer studies have been conducted with these apps. OBJECTIVES: The usability of a medication safety app was tested with nurses to reveal their perceptions of the graphical user interface and to discover problems they encountered in using the app. METHODS: Usability testing of the app was conducted with RN-BSN students and informatics students (n = 18). Perceptions of the graphical components were gathered in pretest and posttest questionnaires, and video recordings of the usability testing were transcribed. The significance of the difference in mean performance time for 8 tasks was tested, and qualitative analysis was deployed to identify problems encountered and to rate the severity of each problem. RESULTS: While all participants perceived the graphical user interface as easy to understand, nurses took significantly more time to complete certain tasks. More nurses found the medication app to be lacking in intuitiveness of user interface design, in capability to match real world data, and in providing optimal information architecture. CONCLUSION: To successfully integrate mobile devices in healthcare, developers must address the problems that nurses encountered in use of the app. PMID- 29035625 TI - Chickens with humanized immunoglobulin genes generate antibodies with high affinity and broad epitope coverage to conserved targets. AB - Transgenic animal platforms for the discovery of human monoclonal antibodies have been developed in mice, rats, rabbits and cows. The immune response to human proteins is limited in these animals by their tolerance to mammalian-conserved epitopes. To expand the range of epitopes that are accessible, we have chosen an animal host that is less phylogenetically related to humans. Specifically, we generated transgenic chickens expressing antibodies from immunoglobulin heavy and light chain loci containing human variable regions and chicken constant regions. From these birds, paired human light and heavy chain variable regions are recovered and cloned as fully human recombinant antibodies. The human antibody expressing chickens exhibit normal B cell development and raise immune responses to conserved human proteins that are not immunogenic in mice. Fully human monoclonal antibodies can be recovered with sub-nanomolar affinities. Binning data of antibodies to a human protein show epitope coverage similar to wild type chickens, which we previously showed is broader than that produced from rodent immunizations. PMID- 29035626 TI - Performance evaluation of poly-urethane foam packed-bed chemical scrubber for the oxidative absorption of NH3 and H2S gases. AB - The feasibility of open-pore polyurethane (PU) foam as packing material for wet chemical scrubber was tested for NH3 and H2S removals. The foam is inexpensive, light-weight, highly porous (low pressure drop) and provides large surface area per unit volume, which are desirable properties for enhanced gas/liquid mass transfer. Conventional HCl/HOCl (for NH3) and NaOH/NaOCl (for H2S) scrubbing solutions were used to absorb and oxidize the gases. Assessment of the wet chemical scrubbers reveals that pH and ORP levels are important to maintain the gas removal efficiencies >95%. A higher re-circulation rate of scrubbing solutions also proved to enhance the performance of the NH3 and H2S columns. Accumulation of salts was confirmed by the gradual increase in total dissolved solids and conductivity values of scrubbing solutions. The critical elimination capacities at >95% gas removals were found to be 5.24 g NH3-N/m3-h and 17.2 g H2S S/m3-h at an empty bed gas residence time of 23.6 s. Negligible pressure drops (< 4 mm H2O) after continuous operation demonstrate the suitability of PU as a practical packing material in wet chemical scrubbers for NH3 and H2S removals from high-volume dilute emissions. PMID- 29035627 TI - METALLOTHIONEIN genes encoding ROS scavenging enzymes are down-regulated in the root cortex during inducible aerenchyma formation in rice. AB - Under waterlogged conditions, roots of gramineous plants form lysigenous aerenchyma (internal gas spaces) by inducing the death of cortical cells. Rice (Oryza sativa) roots induce aerenchyma formation through ethylene- and reactive oxygen species (ROS)-mediated signaling. Metallothionein (MT) is a small, cysteine-rich protein that acts as a ROS scavenger. In rice roots, the expression of MT1a, MT1b, MT1c and MT1Ld were higher than those of the other MT genes. In the root cortex, where aerenchyma forms exclusively, the expression of MT1a, MT1b and MT1Ld was reduced prior to aerenchyma formation. These findings suggest that ROS accumulation in the cortex, which is aided by downregulation of MT1 genes, is needed for aerenchyma formation in rice roots. PMID- 29035628 TI - Effects of nitrate and sulfate on the performance and bacterial community structure of membrane-less single-chamber air-cathode microbial fuel cells. AB - Membrane-less, single-chamber, air-cathode, microbial fuel cells (ML-SC MFCs) have attracted attention as being suitable for wastewater treatment. In this study, the effects of nitrate and sulfate on the performance of ML-SC MFCs and their bacterial structures were evaluated. The maximum power density increased after nitrate addition from 8.6 mW.m-2 to 14.0 mW.m-2, while it decreased after sulfate addition from 11.5 mW.m-2 to 7.7 mW.m-2. The chemical oxygen demand removal efficiencies remained at more than 90% regardless of the nitrate or sulfate additions. The nitrate was removed completely (93.0%) in the ML-SC MFC, while the sulfate removal efficiency was relatively low (17.6%). Clostridium (23.1%), Petrimonas (20.0%), and unclassified Rhodocyclaceae (6.2%) were dominant on the anode before the addition of nitrate or sulfate. After the addition of nitrate, Clostridium was still the most dominant on the anode (23.6%), but Petrimonas significantly decreased (6.0%) and unclassified Rhodocyclaceae increased (17.1%). After the addition of sulfate, the amount of Clostridium almost doubled in the composition on the anode (43.2%), while Petrimonas decreased (5.5%). The bacterial community on the cathode was similar to that on the anode after the addition of nitrate. However, Desulfovibrio was remarkably dominant on the cathode (32.9%) after the addition of sulfate. These results promote a deeper understanding of the effects of nitrate or sulfate on the ML-SC MFCs' performance and their bacterial community. PMID- 29035630 TI - A Population Health Measurement Framework: Evidence-Based Metrics for Assessing Community-Level Population Health in the Global Budget Context. AB - Population health is one of the pillars of the Triple Aim to improve US health care. The authors developed a framework for population health measurement and a proposed set of measures for further exploration to guide the population health efforts in Maryland. The authors searched peer-reviewed, expert-authored literature and current public health measures. Using a semi-structured analysis, a framework was proposed, which consisted of a conceptual model of several domains and identified population health measures addressing them. Stakeholders were convened to review the framework and identified the most feasible population health measures considering the underlying health information technology (IT) infrastructure in Maryland. The framework was organized based on health system factors, determinants of health, and population-based and clinical outcomes. Measurement specifications were developed that addressed different aspects of selected measures and assessed various national and local data sources for selected measures. Data sources were identified based on their key characteristics, challenges, opportunities, and potential applicability to the proposed measures, as well as the issue of interoperability of data sources among different organizations. The proposed framework and measures can act as a platform to quantify the determinants of health and the state overall population health goals. Key considerations for developing a population health measures framework include health IT infrastructure, data denominators, feasibility, health system environment, and policy factors. Measurement development and progression using the framework will largely depend on the users' focus areas and availability of data. The authors believe that the proposed framework and road map can serve as a model for communities elsewhere. PMID- 29035632 TI - A multiobjective optimization model and an orthogonal design-based hybrid heuristic algorithm for regional urban mining management problems. AB - : In this paper, a multiobjective mixed-integer piecewise nonlinear programming model (MOMIPNLP) is built to formulate the management problem of urban mining system, where the decision variables are associated with buy-back pricing, choices of sites, transportation planning, and adjustment of production capacity. Different from the existing approaches, the social negative effect, generated from structural optimization of the recycling system, is minimized in our model, as well as the total recycling profit and utility from environmental improvement are jointly maximized. For solving the problem, the MOMIPNLP model is first transformed into an ordinary mixed-integer nonlinear programming model by variable substitution such that the piecewise feature of the model is removed. Then, based on technique of orthogonal design, a hybrid heuristic algorithm is developed to find an approximate Pareto-optimal solution, where genetic algorithm is used to optimize the structure of search neighborhood, and both local branching algorithm and relaxation-induced neighborhood search algorithm are employed to cut the searching branches and reduce the number of variables in each branch. Numerical experiments indicate that this algorithm spends less CPU (central processing unit) time in solving large-scale regional urban mining management problems, especially in comparison with the similar ones available in literature. By case study and sensitivity analysis, a number of practical managerial implications are revealed from the model. IMPLICATIONS: Since the metal stocks in society are reliable overground mineral sources, urban mining has been paid great attention as emerging strategic resources in an era of resource shortage. By mathematical modeling and development of efficient algorithms, this paper provides decision makers with useful suggestions on the optimal design of recycling system in urban mining. For example, this paper can answer how to encourage enterprises to join the recycling activities by government's support and subsidies, whether the existing recycling system can meet the developmental requirements or not, and what is a reasonable adjustment of production capacity. PMID- 29035631 TI - Bioconcentration and half-life of quinalphos pesticide in rice-fish integration system in the Mekong Delta, Vietnam. AB - In order to determine the distribution and enable the elimination of quinalphos, a popular active pesticide compound used in the Mekong Delta, an experiment was set up in a rice-fish integration system in Can Tho City, Vietnam. Fish was stocked into the field when the rice was two-months old. Quinalphos was applied twice in doses of 42.5 g per 1000 m2. Water, fish and sediment samples were collected at time intervals and analyzed by a Gas Chromatography Electron Capture Detector system. The results show that quinalphos residues in fish muscles were much higher than those of the water and the bioconcentration factor (logBCF) was above 2 for the fish. The half-life of first and second quinalphos applications were 12.2 and 11.1 days for sediment, 2.5 and 1.1 days for silver barb, 1.9 and 1.3 days for common carp, and 1.1 and 1.0 days for water, respectively. PMID- 29035633 TI - The effect of technology assisted therapy for intellectually and visually impaired adults suffering from separation anxiety: Conquering the fear. AB - Persons with an intellectual disability (ID) are at risk of developing separation anxiety (SA) and, if left untreated, this can be a risk factor for the development of psychopathology. The effects of an intervention, namely technology assisted therapy for SA (TTSA), were examined on the SA, challenging behavior, psychosocial functioning, and quality of life (QOL) experienced by moderate to mild intellectually and visually disabled adults. This study aimed to determine whether TTSA reduces SA and challenging behavior in persons with ID and visual impairment, and if this results in increased psychosocial functioning and QOL. A pre-experimental within-group design with randomized multiple baselines and staggered intervention start-points was used (n = 6). The variables were monitored with standardized instruments. The frequencies of each participant's use of the technology and the frequency and intensity of their behavior were recorded over time. Results indicate that the SA and challenging behavior experienced by the participants decreased significantly and their psychosocial functioning and QOL increased significantly. The conclusions are that TTSA has the potential to be a valid intervention to address SA in adults with visual and moderate to mild IDs. PMID- 29035634 TI - Phthalides as promising insecticides against Tuta absoluta (Lepidoptera: Gelechiidae). AB - In this study, the insecticide potential of eight phthalides derived from furan 2(5H)-one was evaluated against Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) larvae. The potency of the most active phthalides and the susceptibility of six different T. absoluta populations to these compounds were determined. The toxicity of these molecules to two non-target species (Solenopsis saevissima Smith and Tetragonisca angustula Latreille) was also evaluated. Two phthalides (3 and 4) presented insecticide potential against T. absoluta. Phthalide 4 was as toxic as piperine (positive control) and both phthalides exhibited rapid action (LT50 < 2 hours). The variation in the susceptibility of T. absoluta populations to the phthalides 3 and 4 was low. Neither phthalide presented physiological selectivity for non-target species. Therefore, the phthalides 3 and 4 are promising molecules, or at least, a starting point for a chemical optimization program leading to formulations for the management of the tomato leafminer. The application of such products should be conducted according to the principles of ecological selectivity. PMID- 29035635 TI - Effects of Varying the Step Duration on the Determination of Lactate Thresholds in Elite Rowers. AB - This study aimed to identify the minimum increment duration required to accurately assess 2 distinct lactate thresholds. A total of 21 elite rowers (12 women and 9 men) participated in this study, and each performed 8 or 9 rowing tests comprising 5 progressive incremental tests (3-, 4-, 5-, 7-, or 10-min steps) and at least three 30-min constant-intensity maximal lactate steady-state assessments. Power output (PO) at lactate threshold 1 was higher in the 3- and 4 min incremental tests. No other measures were different for lactate threshold 1. The PO at the second lactate threshold was different between most tests and was higher than the PO at maximal lactate steady state, except for the 10-min incremental test. Lactate threshold 2 oxygen consumption was higher in the 3-, 4 , and 5-min tests, but heart rate (HR) and rating of perceived exertion were not different between tests. Peak PO in the incremental tests was inversely related to the step durations (r2 = .86, P <= .02). Peak oxygen consumption was higher in the shorter (<=5 min) than the longer (>=7 min) incremental tests, whereas peak HR was not different between tests. These data suggest that for the methods used in this study, incremental exercise tests with step durations <=7 min overestimate maximal lactate steady-state exercise intensity, peak physiological values are best determined using incremental tests with step durations <=4 min, and HR measures are not affected by step duration, and therefore, prescription of training HRs can be made using any of these tests. PMID- 29035636 TI - Quantification of nitrogen in the liquid fraction and in vitro assessment of lysine bioavailability in the solid fraction of soybean meal hydrolysates. AB - Soybean meal (SBM) is a product generated from the manufacture of soybean oil and has the potential for use as a source of fermentable sugars for ethanol production or as a protein source for animal feeds. Knowing the levels of nitrogen available from ammonium is a necessary element of the ethanolic fermentation process while identifying the levels of essential amino acids such as lysine is important in determining usage as a feed source. As such the purpose of this study was to quantify total nitrogen and ammonium in the liquid fraction of hydrolyzed SBM and to evaluate total and bioavailable lysine in the solid fraction of the hydrolyzed SBM. The effects of acid concentration, cellulase and beta-glucosidase on total and ammonium nitrogen were studied with analysis indicating that higher acid concentrations increased nitrogen compounds with ammonium concentrations ranging from 0.20 to 1.24 g L-1 while enzymatic treatments did not significantly increase nitrogen levels. Total and bioavailable lysine was quantified by use of an auxotrophic gfpmut3 E.coli whole-cell bioassay organism incapable of lysine biosynthesis. Acid and enzymatic treatments were applied with lysine bioavailability increasing from a base of 82% for untreated SBM to up to 97%. Our results demonstrated that SBM has the potential to serve in ethanolic fermentation and as an optimal source essential amino acid lysine. PMID- 29035638 TI - Evaluation of the effectiveness of a novel gait trainer in increasing the functionality of individuals with motor impairment: A case series. AB - Regaining the ability to independently ambulate following a physical disability can increase functional ability and participation of patients in daily life. Gait trainers are assistive devices that enable body support and provide safety during gait. However, most conventional gait trainers are pre-configured to a constant position, therefore not suitable for practicing sit-to-stand function, and require assistance from a caregiver in order to mount the device from a sitting position. We therefore evaluated the effectiveness of a dynamically-adjusting gait trainer, designed to provide independence and safety during gait and various activities, in both lab setting and at home in four subjects (one female, three males, ages 32-79 years) with limited ambulation. Spatiotemporal parameters and gait symmetry were recorded, as well as activity levels, actual use of device, and satisfaction. Although gait parameters and physical activity levels were not notably improved, and in one case were worsened, three subjects reported positive experience with the gait trainer. The new gait trainer may have advantages in supporting users with limited mobility during walking and various functions and decrease the risk for falls. A longer practice time and individual fitting process are recommended for better accommodation to the new possibilities. PMID- 29035639 TI - Correction to: Thyroid 2016;26:1343-1421. DOI: 10.1089/thy.2016.0229. PMID- 29035637 TI - Design and characterization of MP0250, a tri-specific anti-HGF/anti-VEGF DARPin(r) drug candidate. AB - MP0250 is a multi-domain drug candidate currently being tested in clinical trials for the treatment of cancer. It comprises one anti-vascular endothelial growth factor-A (VEGF-A), one anti-hepatocyte growth factor (HGF), and two anti-human serum albumin (HSA) DARPin(r) domains within a single polypeptide chain. While there is first clinical validation of a single-domain DARPin(r) drug candidate, little is known about DARPin(r) drug candidates comprising multiple domains. Here, we show that MP0250 can be expressed at 15 g/L in soluble form in E. coli high cell-density fermentation, it is stable in soluble/frozen formulation for 2 years as assessed by reverse phase HPLC, it has picomolar potency in inhibiting VEGF-A and HGF in ELISA and cellular assays, and its domains are simultaneously active as shown by surface plasmon resonance. The inclusion of HSA-binding DARPin(r) domains leads to a favorable pharmacokinetic profile in mouse and cynomolgus monkey, with terminal half-lives of ~ 30 hours in mouse and ~ 5 days in cynomolgus monkey. MP0250 is thus a highly potent drug candidate that could be particularly useful in oncology. Beyond MP0250, the properties of MP0250 indicate that multi-domain DARPin(r) proteins can be valuable next-generation drug candidates. PMID- 29035640 TI - Patients' Acceptance of the Use of Serious Games in Physical Rehabilitation in Morocco. AB - OBJECTIVE: The aim of this study was to determine whether serious games especially customized for physical rehabilitation could be used in daily clinics with patients who are not familiar with informatics and/or new technologies and whether such a clinical approach would be culturally acceptable within a North African population to plan further clinical distribution if the hypothesis appears to be positive. MATERIALS AND METHODS: Twenty-one patients participated in this study. Experiments were performed in the University Hospital Mohammed VI Oujda in Morocco. Patients were asked to perform physical rehabilitation exercises with dedicated serious games after their conventional therapy session. A questionnaire was used to evaluate patients' habits to rehabilitation exercises and satisfaction and expectation about the use of serious games for physical rehabilitation. RESULTS: The same problem of low participation in at-home exercises was found in Morocco compared to Europe and the United States: 60 (30)% of the exercises was performed by the patients in Morocco and 48 (28)% in Europe and the United States. Results of this study show that serious games are well accepted by the patients (100%) and that it can help during rehabilitation (90%). Most of the patients prefer exercises with games than conventional rehabilitation exercises. CONCLUSION: Even in a context of low education (participants in this study attended school until the age of 10 years old), and low access and knowledge about new technology and informatics, rehabilitation exercises within serious games seem to be an interesting option to motivate patients during rehabilitation with a physiotherapist. Such a system could be installed also at home to increase patient's participation. PMID- 29035641 TI - Analysis of clinical features of lipoblastoma in children. AB - OBJECTIVE: A lipoblastoma is pathologically benign but often recurs. Due to its rarity, studies are scarce. The purpose of this study was to investigate the clinical characteristics of lipoblastoma occurring in children and to detect any correlations with the expression of Ki-67. PARTICIPANTS: From 1998 to 2010, 33 patients were diagnosed with lipoblastoma at Seoul National University Children's Hospital. METHODS: Ki-67 immunohistochemistry staining of the tumor tissue was performed. RESULTS: A total of 33 patients (64% males) were enrolled in the study, with a mean age of 28 month. Eleven and 22 lesions were deep and superficial, respectively. Complete excisions were performed for 30 patients, and three underwent incomplete excisions. Two patients who underwent incomplete excision subsequently underwent a second operation due to tumor regrowth, and one patient had a recurrence despite complete excision. There was no statistically significant correlation observed between the tumor size or recurrence and the expression of Ki-67. CONCLUSIONS: Lipoblastoma requires an accurate diagnosis and operative resection to alleviate the symptoms induced by its growth. Incompletely resected tumor may regrow; therefore, complete excision is the treatment of choice. Continuous follow-up is needed to monitor for recurrence of disease, even after a complete excision. PMID- 29035642 TI - Racial and Ethnic Disparities in Cancer Survival: The Contribution of Tumor, Sociodemographic, Institutional, and Neighborhood Characteristics. AB - Purpose Racial/ethnic disparities in cancer survival in the United States are well documented, but the underlying causes are not well understood. We quantified the contribution of tumor, treatment, hospital, sociodemographic, and neighborhood factors to racial/ethnic survival disparities in California. Materials and Methods California Cancer Registry data were used to estimate population-based cancer-specific survival for patients diagnosed with breast, prostate, colorectal, or lung cancer between 2000 and 2013 for each racial/ethnic group (non-Hispanic black, Hispanic, Asian American and Pacific Islander, and separately each for Chinese, Japanese, and Filipino) compared with non-Hispanic whites. The percentage contribution of factors to overall racial/ethnic survival disparities was estimated from a sequence of multivariable Cox proportional hazards models. Results In baseline models, black patients had the lowest survival for all cancer sites, and Asian American and Pacific Islander patients had the highest, compared with whites. Mediation analyses suggested that stage at diagnosis had the greatest influence on overall racial/ethnic survival disparities accounting for 24% of disparities in breast cancer, 24% in prostate cancer, and 16% to 30% in colorectal cancer. Neighborhood socioeconomic status was an important factor in all cancers, but only for black and Hispanic patients. The influence of marital status on racial/ethnic disparities was stronger in men than in women. Adjustment for all covariables explained approximately half of the overall survival disparities in breast, prostate, and colorectal cancer, but it explained only 15% to 40% of disparities in lung cancer. Conclusion Overall reductions in racial/ethnic survival disparities were driven largely by reductions for black compared with white patients. Stage at diagnosis had the largest effect on racial/ethnic survival disparities, but earlier detection would not entirely eliminate them. The influences of neighborhood socioeconomic status and marital status suggest that social determinants, support mechanisms, and access to health care are important contributing factors. PMID- 29035644 TI - Affordable Care Act, Health Insurance Coverage, and Cancer Outcomes. PMID- 29035643 TI - Role of Bone-Modifying Agents in Metastatic Breast Cancer: An American Society of Clinical Oncology-Cancer Care Ontario Focused Guideline Update. AB - Purpose To update, in collaboration with Cancer Care Ontario (CCO), key recommendations of the American Society of Clinical Oncology (ASCO) guideline on the role of bone-modifying agents (BMAs) in metastatic breast cancer. This focused update addressed the new data on intervals between dosing and the role of BMAs in control of bone pain. Methods A joint ASCO-CCO Update Committee conducted targeted systematic literature reviews to identify relevant studies. Results The Update Committee reviewed three phase III noninferiority trials of dosing intervals, one systematic review and meta-analysis of studies of de-escalation of BMAs, and two randomized trials of BMAs in control of pain secondary to bone metastases. Recommendations Patients with breast cancer who have evidence of bone metastases should be treated with BMAs. Options include denosumab, 120 mg subcutaneously, every 4 weeks; pamidronate, 90 mg intravenously, every 3 to 4 weeks; or zoledronic acid, 4 mg intravenously every 12 weeks or every 3 to 4 weeks. The analgesic effects of BMAs are modest, and they should not be used alone for bone pain. The Update Committee recommends that the current standard of care for supportive care and pain management-analgesia, adjunct therapies, radiotherapy, surgery, systemic anticancer therapy, and referral to supportive care and pain management-be applied. Evidence is insufficient to support the use of one BMA over another. Additional information is available at www.asco.org/breast-cancer-guidelines and www.asco.org/guidelineswiki . PMID- 29035645 TI - Factors That Contributed to Black-White Disparities in Survival Among Nonelderly Women With Breast Cancer Between 2004 and 2013. AB - Purpose To estimate the contribution of differences in demographics, comorbidity, insurance, tumor characteristics, and treatment to the overall mortality disparity between nonelderly black and white women diagnosed with early-stage breast cancer. Patients and Methods Excess relative risk of all-cause death in black versus white women diagnosed with stage I to III breast cancer, expressed as a percentage and stratified by hormone receptor status for each variable (demographics, comorbidity, insurance, tumor characteristics, and treatment) in sequentially, propensity-scored, optimally matched patients by using multivariable hazard ratios (HRs). Results We identified 563,497 white and black women 18 to 64 years of age diagnosed with stage I to III breast cancer from 2004 to 2013 in the National Cancer Data Base. Among women with hormone receptor positive disease, who represented 78.5% of all patients, the HR for death in black versus white women in the demographics-matched model was 2.05 (95% CI, 1.94 to 2.17). The HR decreased to 1.93 (95% CI, 1.83 to 2.04), 1.54 (95% CI, 1.47 to 1.62), 1.30 (95% CI, 1.24 to 1.36), and 1.25 (95% CI, 1.19 to 1.31) when sequentially matched for comorbidity, insurance, tumor characteristics, and treatment, respectively. These factors combined accounted for 76.3% of the total excess risk of death in black patients; insurance accounted for 37.0% of the total excess, followed by tumor characteristics (23.2%), comorbidities (11.3%), and treatment (4.8%). Results generally were similar among women with hormone receptor-negative disease, although the HRs were substantially smaller. Conclusion Matching by insurance explained one third of the excess risk of death among nonelderly black versus white women diagnosed with early-stage breast cancer; matching by tumor characteristics explained approximately one fifth of the excess risk. Efforts to focus on equalization of access to care could substantially reduce ethnic/racial disparities in overall survival among nonelderly women diagnosed with breast cancer. PMID- 29035646 TI - Electronic Health Record Portals adoption: Empirical model based on UTAUT2. AB - BACKGROUND: The future of healthcare delivery is becoming more citizen centered, as today's user is more active and better informed. Governmental institutions are promoting the deployment and use of online services such as Electronic Health Record (EHR) portals. This makes the adoption of EHR portals an important field to study and understand. OBJECTIVE: The aim of this study is to understand the factors that drive individuals to adopt EHR portals. METHODS: This study applies the extended unified theory of acceptance and usage technology (UTAUT2) to explain patients' individual adoption of EHR portals. An online questionnaire was administered. We collected 386 valid responses. RESULTS: The statistically significant drivers of behavioral intention are performance expectancy ([Formula: see text]=0.17; p < 0.01), effort expectancy ([Formula: see text]=0.17; p < 0.01), social influence ([Formula: see text]=0.10; p < 0.05), and habit ([Formula: see text]=0.37; p < 0.001). Habit ([Formula: see text]=0.28; p < 0.001) and behavioral intention ([Formula: see text]=0.24; p < 0.001) are the statistically significant drivers of technology use. The model explains 52% of the variance in behavioral intention and 31% of the variance in technology use. CONCLUSIONS: By testing an information technology acceptance model, we are able to determine what is more valued by patients when it comes to deciding whether to adopt EHR portals or not. PMID- 29035647 TI - The Bigger the Hand, the Bigger the Difference? Implications for Testing Strength With 2 Popular Handgrip Dynamometers. AB - CONTEXT: Studies developed the frail elderly handgrip strength (HGS) diagnostic criteria using multiple types of handgrip dynamometers. If different handgrip dynamometers report different values, then this would have the potential to misclassify people into the wrong diagnostic category. OBJECTIVE: To examine the characteristics of HGS measured by 2 standard handgrip dynamometers and to investigate the influence of hand size on HGS. SETTING: University research laboratory. PARTICIPANTS: A total of 87 young and middle-aged adults between the ages of 20 and 60 years participated in this study. MAIN OUTCOME MEASURES: Standard methods of HGS measurements were used for hydraulic and Smedley spring type dynamometers, although the participants were instructed to maintain an upright standing position in both tests. RESULTS: Test-retest reliability of hydraulic and Smedley dynamometers provided comparable results to that observed with previous studies. However, the difference in HGS between the 2 dynamometers (Hydraulic-Smedley difference) was positively associated (r = .670, P < .001) with the mean of the 2 dynamometers. The participants who had relatively low HGS (at least <35 kg) produced similar HGS values when the 2 dynamometers were compared, whereas persons who had relatively higher HGS (at least >45 kg) produced greater strength values with the hydraulic compared with the Smedley. The hand and palm lengths were weakly correlated (r = .349 and r = .358, respectively, both Ps < .001) with the difference in HGS between the 2 dynamometers. CONCLUSIONS: Test-retest reliability of hydraulic and Smedley dynamometers provides comparable results to previous studies. However, the difference in HGS between the 2 dynamometers was positively associated with the mean of the 2 dynamometers. This Hydraulic-Smedley difference would not affect persons who have relatively low HGS (at least <35 kg), while when HGS is relatively high, the comparison between dynamometers should be done with caution. PMID- 29035648 TI - Treatment of mandibular osteomyelitis in two red-necked wallabies (Macropus rufogriseus) by means of intensive long-term parenteral drug administration and serial computed tomographic monitoring. AB - CASE DESCRIPTION 2 female red-necked wallabies (Macropus rufogriseus) were evaluated because of sudden-onset mandibular swelling, ptyalism, and hyporexia. CLINICAL FINDINGS Physical examination revealed a mandibular swelling with a fluctuant center in both wallabies. Hematologic analysis revealed leukocytosis with a mature neutrophilia and monocytosis in one wallaby (case 1) and a slight neutrophilia, hyperglobulinemia, and high serum alanine aminotransferase activity in the other (case 2). Cytologic examination of the swelling revealed a uniform population of gram-negative rods in case 1 and neutrophilic inflammation in case 2. Radiography revealed a soft tissue mandibular swelling with osteolucency around mandibular incisor roots in both wallabies. Computed tomography revealed changes consistent with chronic active mandibular osteomyelitis and reactive bone formation, but also sequestra formation not appreciable via radiography. TREATMENT AND OUTCOME Long-term antimicrobial treatment was initiated with clindamycin (17 to 21 mg/kg [7.7 to 9.5 mg/lb], IV, q 12 h for 40 to 55 days) and high-dose benzathine penicillin G (80,000 U/kg [36,364 U/lb], SC, q 12 h for 150 days). Serial CT was performed to evaluate response to treatment and resolution of disease. A CT scan 18 months after the initial evaluation revealed complete resolution of osteomyelitis and sequestra. CLINICAL RELEVANCE Advanced imaging and long-term treatment and management were integral to the successful outcome for these wallabies, given that the osseous changes visible on CT images were not visible on standard radiographs, guiding therapeutic decision-making. This report provides new therapeutic and diagnostic monitoring information to assist clinicians with similar cases. PMID- 29035651 TI - Letters to the Editor. PMID- 29035650 TI - What do pets in New Mexico have to do with one health? PMID- 29035653 TI - What Is Your Diagnosis? PMID- 29035654 TI - Pathology in Practice. PMID- 29035655 TI - Focal uterine T-cell lymphoma in an ovariectomized cat. AB - CASE DESCRIPTION A 14-year-old ovariectomized domestic shorthair cat was evaluated because of periuria and perineal licking of 3 days' duration. CLINICAL FINDINGS On initial examination, an abdominal mass was palpable cranial to the urinary bladder. The perineal area was soiled with a blood-tinged mucous fluid. Abdominal ultrasonography revealed a vascularized, focal, and circumferential thickening of the right uterine horn, involving particularly the muscular layer. No evidence of dissemination was noted. TREATMENT AND OUTCOME Hysterectomy was performed, revealing a localized, 2.5 * 4-cm firm mass with a smooth surface within the right uterine horn. Results of histologic examination and immunohistochemical analysis of tissue samples from the mass suggested high-grade T-cell uterine lymphoma. Owners declined medical and chemotherapeutic treatments. One year later, the cat developed diabetes mellitus, which was medically treated. Nineteen months following the uterine lymphoma diagnosis, a central corneal ulcer associated with a right retrobulbar mass was diagnosed. The cat was euthanized, and the retrobulbar mass was removed. Immunohistochemical staining revealed evidence of high-grade B-cell retrobulbar lymphoma. CLINICAL RELEVANCE The clinical outcome of this cat with uterine lymphoma was favorable for 19 months after diagnosis, with no treatment other than hysterectomy. Whether the same outcome could be expected for other cats with this rarely reported neoplasm remains to be determined. Uterine lymphoma should be considered as a possible cause of dysuria in an ovariectomized cat. PMID- 29035656 TI - Clinical, laboratory, and hemostatic findings in cats with naturally occurring sepsis. AB - OBJECTIVE To characterize clinical and laboratory findings in cats with naturally occurring sepsis, emphasizing hemostasis-related findings, and evaluate these variables for associations with patient outcomes. DESIGN Prospective, observational, clinical study. ANIMALS 31 cats with sepsis and 33 healthy control cats. PROCEDURES Data collected included history; clinical signs; results of hematologic, serum biochemical, and hemostatic tests; diagnosis; and outcome (survival vs death during hospitalization or <= 30 days after hospital discharge). Differences between cats with and without sepsis and associations between variables of interest and death were analyzed statistically. RESULTS The sepsis group included cats with pyothorax (n = 10), septic peritonitis (7), panleukopenia virus infection (5), bite wounds (5), abscesses and diffuse cellulitis (3), and pyometra (1). Common clinical abnormalities included dehydration (21 cats), lethargy (21), anorexia (18), pale mucous membranes (15), and dullness (15). Numerous clinicopathologic abnormalities were identified in cats with sepsis; novel findings included metarubricytosis, hypertriglyceridemia, and high circulating muscle enzyme activities. Median activated partial thromboplastin time and plasma D-dimer concentrations were significantly higher, and total protein C and antithrombin activities were significantly lower, in the sepsis group than in healthy control cats. Disseminated intravascular coagulopathy was uncommon (4/22 [18%] cats with sepsis). None of the clinicopathologic abnormalities were significantly associated with death on multivariate analysis. CONCLUSIONS AND CLINICAL RELEVANCE Cats with sepsis had multiple hematologic, biochemical, and hemostatic abnormalities on hospital admission, including several findings suggestive of hemostatic derangement. Additional research including larger numbers of cats is needed to further investigate these findings and explore associations with outcome. PMID- 29035657 TI - Evaluation of mortality rate and predictors of outcome in dogs receiving outpatient treatment for parvoviral enteritis. AB - OBJECTIVE To determine mortality rates and prognostic factors for dogs with parvoviral enteritis receiving outpatient treatment. DESIGN Retrospective case series and case-control study. ANIMALS 130 client-owned dogs with a diagnosis of parvoviral enteritis between August 1, 2012, and January 31, 2015, that were treated with outpatient care. PROCEDURES Medical records were reviewed and data extracted regarding dog age, body weight, breed, and vaccination history; treatments administered; and short-term (>= 3 day) outcome (determined via telephone call with owner). Treatments were administered according to clinician preference. Mortality rates were calculated overall and for various signalment and treatment groupings and compared. RESULTS 97 (75%) dogs survived and 33 (25%) dogs failed to survive for >= 3 days after initial diagnosis of parvoviral enteritis. Compared with distributions in the general hospital population, Chihuahuas, German Shepherd Dogs, pit bull-type dogs, and males were overrepresented. No significant difference was identified between survivors and nonsurvivors regarding age, body weight, or sex. Dogs prescribed a caloric supplement fed every 2 to 4 hours had a mortality rate of 19% (16/85). Most of these dogs had also received fluids administered SC, an antiemetic, and antimicrobials. CONCLUSIONS AND CLINICAL RELEVANCE Clinicians should note the 25% mortality rate of the dogs with parvoviral enteritis that received outpatient care in this study setting when discussing treatment options with owners of affected dogs who are financially unable to pursue hospitalization. PMID- 29035658 TI - Toward an evidence-based approach to stress management for veterinarians and veterinary students. PMID- 29035659 TI - Animal Behavior Case of the Month. PMID- 29035660 TI - Pathology in Practice. PMID- 29035662 TI - Treatment of medial shoulder joint instability in dogs by extracapsular stabilization with a prosthetic ligament: 39 cases (2008-2013). AB - OBJECTIVE To investigate clinical outcomes for dogs surgically treated for medial shoulder joint instability (MSI) by extracapsular stabilization with a prosthetic ligament. DESIGN Retrospective multicenter case series. ANIMALS 39 client-owned dogs. PROCEDURES Medical records of 3 veterinary medical centers were searched to identify dogs with MSI diagnosed by clinical examination and arthroscopic assessment and treated by extracapsular stabilization with a prosthetic ligament. A minimum 6-month follow-up period was required for study inclusion. Signalment, function or use of the dog, duration of clinical signs, clinical and diagnostic imaging data, MSI grade (1 [mild] to 4 [complete luxation]), follow-up duration, complications, and outcome data were recorded. RESULTS All grades of MSI were represented. Implants were placed successfully in all dogs. Complications (4 major and 2 minor) were recorded for 6 of 39 (15%) dogs; all were treated successfully. Function at the time of last follow-up (6 to 68 months) was deemed full in 30 of 39 (77%) dogs and acceptable in 9 (23%). CONCLUSIONS AND CLINICAL RELEVANCE Surgical treatment of MSI in dogs by extracapsular stabilization with a prosthetic ligament was associated with a complication rate considered acceptable for orthopedic procedures. All patient outcomes were considered successful. PMID- 29035661 TI - Outcome of laparoscopic ovariohysterectomy or ovariectomy in dogs with von Willebrand disease or factor VII deficiency: 20 cases (2012-2014). AB - OBJECTIVE To describe surgical techniques and perioperative management of dogs with von Willebrand disease (VWD) or factor VII (FVII) deficiency undergoing laparoscopic ovariohysterectomy or ovariectomy and evaluate outcomes. DESIGN Retrospective case series. ANIMALS 20 client-owned dogs with VWD (n = 16) or FVII deficiency (4). PROCEDURES Dogs with VWD or FVII deficiency that underwent laparoscopic ovariohysterectomy or ovariectomy between 2012 and 2014 were retrospectively identified via a multi-institutional review of medical records. RESULTS Median expression of von Willebrand factor was 19% (interquartile range, 18% to 30%). All 16 dogs with VWD were Doberman Pinschers, and all were pretreated with desmopressin; 4 also received cryoprecipitate. One of 4 dogs with FVII deficiency received plasma preoperatively, and 1 was treated with desmopressin; 2 dogs received no preoperative treatment. Laparoscopic ovariectomy was performed in 9 dogs with VWD and 2 dogs with FVII deficiency, laparoscopic ovariectomy with gastropexy was performed in 6 dogs with VWD and 1 dog with FVII deficiency, and laparoscopic-assisted ovariohysterectomy was performed in 1 dog with VWD and 1 dog with FVII deficiency. Iatrogenic splenic laceration requiring conversion to laparotomy occurred during trocar insertion in 1 dog with VWD. No postoperative complications, including signs of hemorrhage, were reported for any dogs. CONCLUSIONS AND CLINICAL RELEVANCE Laparoscopic ovariohysterectomy or ovariectomy in dogs with VWD or FVII deficiency pretreated with desmopressin, cryoprecipitate, or plasma transfusions were not associated with clinical signs of hemorrhage, suggesting that minimally invasive ovariohysterectomy or ovariectomy may be considered in female dogs affected with these coagulopathies. PMID- 29035663 TI - Contrast fluoroscopic evaluation of gastrointestinal transit times with and without the use of falconry hoods in red-tailed hawks (Buteo jamaicensis). AB - OBJECTIVE To evaluate gastrointestinal transit times in red-tailed hawks (Buteo jamaicensis) by use of contrast fluoroscopic imaging and investigate the effect of falconry hooding in these hawks on gastrointestinal transit time. DESIGN Prospective, randomized, blinded, complete crossover study. ANIMALS 9 healthy red tailed hawks. PROCEDURES Hawks were gavage-fed a 30% weight-by-volume barium suspension (25 mL/kg [11.3 mL/lb]) into the crop. Fluoroscopic images were obtained at multiple time points after barium administration. Time to filling and emptying of various gastrointestinal tract organs and overall transit time were measured. The effect of hooding (hooded vs nonhooded) on these variables was assessed in a randomized complete crossover design. RESULTS In nonhooded birds, overall gastrointestinal transit time ranged from 30 to 180 minutes (mean +/- SD, 100 +/- 52 min). Time to complete crop emptying ranged from 30 to 180 minutes (83 +/- 49 min). Contrast medium was present in the ventriculus in all birds within 5 minutes of administration and in the small intestines within 5 to 15 minutes (median, 5 min). Hooding of red-tailed hawks resulted in a significant delay of complete crop emptying (no hood, 83 +/- 49 minutes; hood, 133 +/- 48 minutes), but no significant effects of hooding were found on other measured variables. CONCLUSIONS AND CLINICAL RELEVANCE These results indicated that overall gastrointestinal transit times are faster in red-tailed hawks than has been reported for psittacines and that the use of a falconry hood in red-tailed hawks may result in delayed crop emptying. Hooding did not exert significant effects on overall gastrointestinal transit time in this raptorial species. PMID- 29035664 TI - Understanding of how older adults with low vision obtain, process, and understand health information and services. AB - INTRODUCTION: Twenty-five years after the Americans with Disabilities Act, there has still been a lack of advancement of accessibility in healthcare for people with visual impairments, particularly older adults with low vision. This study aims to advance understanding of how older adults with low vision obtain, process, and use health information and services, and to seek opportunities of information technology to support them. METHODS: A convenience sample of 10 older adults with low vision participated in semi-structured phone interviews, which were audio-recorded and transcribed verbatim for analysis. RESULTS: Participants shared various concerns in accessing, understanding, and using health information, care services, and multimedia technologies. Two main themes and nine subthemes emerged from the analysis. DISCUSSION: Due to the concerns, older adults with low vision tended to fail to obtain the full range of all health information and services to meet their specific needs. Those with low vision still rely on residual vision such that multimedia-based information which can be useful, but it should still be designed to ensure its accessibility, usability, and understandability. PMID- 29035665 TI - Like an extended family: Relationships that emerge when older caregivers use written messages to communicate in an ICT-based healthcare service. AB - OBJECTIVE: To explore the relationships that emerge amongst caregivers of persons with dementia and stroke when caregivers use written messages as their communication tool in a closed information and communication technology (ICT) based support group. METHODS: An explorative design with a qualitative approach was used that applied systematic text condensation (STC) to analyse 173 written messages extracted from a web forum. RESULTS: Empathetic, empowering and familiar relationships emerged amongst peers of older caregivers when the caregivers used written messages as their communication tool. The empathetic relationship was characterised by sincerity and openness when the caregivers shared emotions related to caregiving. The empowering relationship reflected a fellowship based on solidarity influenced by a sense of optimism and a willingness to share knowledge to support one another in overcoming challenges. In the familiar relationship, the caregivers were thoughtful and good-humoured with one another and displayed an attitude of consideration towards one another, as in an extended family. PRACTICE IMPLICATION: The use of computer-mediated communication in health care service will change the context of establishing and maintaining interpersonal relationships. Therefore, greater knowledge regarding how the peers of caregivers interact with one another is vital so nurses may better support and educate ICT-based support groups. PMID- 29035666 TI - Examination of Risk for Sleep-Disordered Breathing Among College Football Players. AB - CONTEXT: Professional football linemen are at risk for sleep-disordered breathing (SDB) compared with other types of athletes. It is currently unknown whether college football linemen display a similar risk profile. OBJECTIVE: (1) To determine for the first time whether college football linemen show risk for SDB and (2) test the hypothesis that SDB risk is higher in college football linemen compared with an athletic comparison group. DESIGN: Descriptive laboratory study. SETTING: The Health Risk Assessment Laboratory. PARTICIPANTS: Male football linemen (n = 21) and track (n = 19) Division I athletes between the ages of 18 and 22 years. INTERVENTIONS: Participants completed the Multivariable Apnea Prediction Index and Epworth Sleepiness Scale surveys, validated measures of symptoms of sleep apnea and daytime sleepiness, respectively. Neck and waist circumferences, blood pressure, Modified Mallampati Index (MMPI), and tonsil size were determined, followed by body composition assessment using dual-energy X-ray absorptiometry. MAIN OUTCOME MEASURES: Scores from surveys, anthropometric data, MMPI, and body composition. RESULTS: Survey data demonstrated a deficiency in sleep quality and efficiency, coinciding with increased self-reported symptoms of apnea (Multivariable Apnea Prediction Index = 0.78) in college linemen relative to track athletes. Neck circumference (44.36 cm), waist circumference (107.07 cm), body mass index (35.87 kg/m2), and percent body fat (29.20%), all of which exceeded the clinical predictors of risk for obstructive sleep apnea, were significantly greater in linemen compared with track athletes. Multivariable Apnea Prediction variables were significantly correlated with MMPI, neck circumference, percent body fat, body mass index, and systolic blood pressure (r >= .31, P < .05), indicating that college football linemen are at increased risk for SDB. CONCLUSIONS: Risk factors for SDB recognized in professional football linemen are also present at the college level. Screening may minimize present or future risk for SDB, as well as the downstream risk of SDB-associated metabolic and cardiovascular disease. PMID- 29035667 TI - Why doctors consider leaving UK medicine: qualitative analysis of comments from questionnaire surveys three years after graduation. AB - Objective To report the reasons why doctors are considering leaving medicine or the UK. Design Questionnaire survey. Setting UK. Participants Questionnaires were sent three years after graduation to all UK medical graduates of 2008 and 2012. Main outcome measures Comments from doctors about their main reasons for considering leaving medicine or the UK (or both). Results The response rate was 46.2% (5291/11,461). Among the 60% of respondents who were not definitely intent on remaining in UK medicine, 50% were considering working in medicine outside the UK and 10% were considering leaving medicine. Among those considering working in medicine outside the UK, the most commonly cited reasons were to gain wider experience, that things would be 'better' elsewhere and a negative view of the National Health Service and its culture, state and politics. Other reasons included better training or job opportunities, better pay and conditions, family reasons and higher expectations. Three years after graduation, doctors surveyed in 2015 were significantly more likely than doctors surveyed in 2011 to cite factors related to the National Health Service, to pay and conditions, to their expectations and to effects on work-life balance and patient care. Among those considering leaving medicine, the dominant reason for leaving medicine was a negative view of the National Health Service (mentioned by half of those in this group who commented). Three years after graduation, doctors surveyed in 2015 were more likely than doctors surveyed in 2011 to cite this reason, as well as excessive hours and workload, and financial reasons. Conclusions An increasingly negative view is held by many doctors of many aspects of the experience of being a junior doctor in the National Health Service, and the difficulty of delivering high-quality patient care within what many see as an under-funded system. Policy changes designed to encourage more doctors to remain should be motivated by a desire to address these concerns by introducing real improvements to resources, staffing and working conditions. PMID- 29035668 TI - Improving how secondary care and general practice in England work together: requirements in the NHS Standard Contract. PMID- 29035669 TI - Translational health policy: towards an integration of academia and policy. PMID- 29035670 TI - Sticking to principles and anticipating outcomes. PMID- 29035671 TI - Selection of electrogenic bacteria for microbial fuel cell in removing Victoria blue R from wastewater. AB - This study was conducted to select electrogenic bacteria from wastewater sludge. Phylogenetic analysis revealed that Proteobacteria was the dominant phylum in the microbial fuel cell (MFC) during the decomposition process of organic pollutants. Five culturable bacteria strains - namely, Bacillus subtilis, Flavobacterium sp., Aeromonas hydrophila, Citrobacter freundii, and Stenotrophomonas sp. - have a double potential in dye removal and electricity generation. We inoculated the mixed electrogenic bacteria at a specific ratio and treated them with a triphenylmethane dye, Victoria blue R (VBR), to evaluate their electricity generation ability for the artificial and real wastewater. The results of the VBR shock-loading experiment indicated that the inoculated MFC could adapt to shock loading in 1-2 days and exhibited high removal efficiency (95-100%) for 100-800 mg L-1 VBR with a power density of 8.62 +/- 0.10 to 34.81 +/- 0.25 mW m-2. The selected electrogenic bacteria in the MFC could use VBR as only electron donor for power generation. The matrix effects of the real wastewater on VBR removal and electricity generation of MFC were insignificant. VBR degradation by the electrogenic bacteria involves a stepwise demethylation process to yield partially dealkylated VBR species. In addition, these results demonstrate the feasibility of inoculating culturable bacteria strains to develop an efficient MFC for purifying wastewater. PMID- 29035672 TI - Overview of Home Parenteral Nutrition: An Update. AB - The trend in modern medicine is to transition care from the hospital to home or other nonacute settings as soon as possible. Increasingly, nutrition support professionals are being asked to help facilitate discharge and/or manage patients who require prolonged intravenous fluid and/or nutrition after having been stabilized during a hospitalization. This updated tutorial reviews many of the concepts and challenges that must be considered for successful care that helps to focus on the patients and their quality of life. PMID- 29035674 TI - The startup performance and microbial distribution of an anaerobic baffled reactor (ABR) treating medium-strength synthetic industrial wastewater. AB - In this study, an anaerobic baffled reactor (ABR) with seven chambers was applied to treat medium-strength synthetic industrial wastewater (MSIW). The performance of startup and shock test on treating MSIW was investigated. During the acclimation process, the chemical oxygen demand (COD) of MSIW gradually increased from 0 to 2,000 mg L-1, and the COD removal finally reached 90%. At shock test, the feeding COD concentration increased by one-fifth and the reactor adapted very well with a COD removal of 82%. In a stable state, Comamonas, Smithella, Syntrophomonas and Pseudomonas were the main populations of bacteria, while the predominant methanogen was Methanobacterium. The results of chemical and microbiological analysis indicated the significant advantages of ABR, including buffering shocks, separating stages with matching microorganisms and promoting syntrophism. Meanwhile, the strategies for acclimation and operation were of great importance. Further work can test reactor performance in the treatment of actual industrial wastewater. PMID- 29035673 TI - Extracellular pyridine nucleotides as immune elicitors in arabidopsis. AB - The pyridine nucleotides nicotinamide adenine dinucleotide (NAD) and NAD phosphate (NADP) are coenzymes that function in both metabolic reactions and intracellular signaling. Emerging evidence from animal research indicates that NAD(P) also acts in the extracellular space (ECS). We have shown in the model plant Arabidopsis that (1) exogenous NAD(P) induces immune responses, (2) pathogen infection causes leakage of intracellular NAD(P) into the extracellular fluid at concentrations sufficient to induce immune responses, and (3) removal of extracellular NAD(P) [eNAD(P)] by expressing the human NAD(P)-metabolizing ectoenzyme CD38 partially compromises systemic acquired resistance. Based on these results, we hypothesize that eNAD(P) is a novel damage-associated molecular pattern (DAMP) in plants; during plant-microbe interaction, intracellular NAD(P) is released from dead or dying cells into the ECS where it interacts with the adjacent healthy cells' surface receptors/targets, which in turn activate downstream specific immune signaling pathways. Our recent identification of LecRK I.8, a lectin receptor kinase, as the first cell surface NAD+-binding receptor has provided compelling evidence for this hypothesis. Further identification of cell surface eNAD(P) receptors/targets and their downstream signaling components in Arabidopsis as well as determination of the generality of eNAD(P) signaling in crops will help establish eNAD(P) as a conserved DAMP in plants. PMID- 29035675 TI - Practical considerations in clinical strategy to support the development of injectable drug-device combination products for biologics. AB - The development of an injectable drug-device combination (DDC) product for biologics is an intricate and evolving process that requires substantial investments of time and money. Consequently, the commercial dosage form(s) or presentation(s) are often not ready when pivotal trials commence, and it is common to have drug product changes (manufacturing process or presentation) during clinical development. A scientifically sound and robust bridging strategy is required in order to introduce these changes into the clinic safely. There is currently no single developmental paradigm, but a risk-based hierarchical approach has been well accepted. The rigor required of a bridging package depends on the level of risk associated with the changes. Clinical pharmacokinetic/pharmacodynamic comparability or outcome studies are only required when important changes occur at a late stage. Moreover, an injectable DDC needs to be user-centric, and usability assessment in real-world clinical settings may be required to support the approval of a DDC. In this review, we discuss the common issues during the manufacturing process and presentation development of an injectable DDC and practical considerations in establishing a clinical strategy to address these issues, including key elements of clinical studies. We also analyze the current practice in the industry and review relevant and status of regulatory guidance in the DDC field. PMID- 29035676 TI - The Molecular Mechanism and Neuroprotective Effect of Dihydrocapsaicin-Induced Mild Hypothermia After Cardiopulmonary Resuscitation in Rats. AB - To investigate the molecular mechanism of dihydrocapsaicin (DHC)-induced mild hypothermia in rats, and to compare its protective effect on the central nervous system with that of a conventional method of inducing hypothermia, 24 healthy male Sprague Dawley rats were randomly divided into four groups based on the following conditions: control group, cardiopulmonary resuscitation (CPR) group, body surface cooling group, and DHC group. Tracheal clipping was used to mimic asphyxia arrest. Rats were assessed for their neurological deficit scores. After sacrifice, immunohistochemical staining was used to examine caspase-3 expression in the cerebral cortex and TRPV1 (transient receptor potential vanilloid subfamily, member 1) expression in the hypothalamus. Terminal TdT-mediated dUTP biotin nick end labeling (TUNEL) staining was used to evaluate cell apoptosis in the cerebral cortex. Furthermore, intracellular Ca2+ concentration in the hypothalamus and arginine vasopressin (AVP) concentration in ventral septal tissues were also detected in these four groups. Results of our study showed that neurological deficit scores in the DHC group were significantly higher than those in the CPR and body surface cooling groups (p < 0.05). Caspase-3 expression in the cerebral cortex of control group rats was significantly lower than that in other three groups (p < 0.05). Hypothalamic TRPV1 expression, hypothalamic intracellular Ca2+ concentration, and AVP concentration in the ventral septum in the DHC group were significantly higher than that in the other three groups (p < 0.05). Within these three groups, there were significantly fewer apoptotic cells in the DHC and body surface cooling group rats than in the CPR group rats (p < 0.05). DHC has the neuroprotective effect. DHC induced mild hypothermia and reduces apoptosis through a mechanism whereby DHC activates TRPV1 on hypothalamic cells to cause a large Ca2+ influx, which alters corresponding physiological functions and causes the release of AVP to induce hypothermia. PMID- 29035677 TI - Effectiveness of a Smartphone Application for the Management of Metabolic Syndrome Components Focusing on Weight Loss: A Preliminary Study. AB - BACKGROUND: There are inconsistent results for the effectiveness of using smartphone applications (apps) or websites on weight loss. We investigated the efficacy of a smartphone intervention using a designated app that utilizes a lifestyle intervention-focused approach, including a human coaching element, toward weight loss in overweight or obese Korean adults. METHODS: One hundred four adults aged 20-60 years with a body mass index >=23 kg/m2, who signed up for a smartphone program for weight loss (using the Noom app), were recruited. Participants received an in-person orientation about the study and app use, and a baseline blood sample was obtained. The in-app intervention with daily behavior and nutrition education content and coaching lasted 15 weeks. The primary endpoint of the study was a change in weight. The secondary endpoints were changes in metabolic risk factors such as blood pressure, waist circumference, and glucose and lipid profiles. Body composition changes were also assessed, and body weight at 52 weeks was measured to ascertain long-term effects. RESULTS: Participants showed a clinically significant weight loss effect of -7.5% at the end of the 15-week program (P < 0.001), and at a 52-week follow-up, a weight loss effect of -5.2% was maintained. At 15 weeks, percent body fat and visceral fat decreased by -6.0 +/- 5.4% and -3.4 +/- 2.7 kg, respectively (both P < 0.001). Fasting glucose level also decreased significantly by -5.7 +/- 14.6 mg/dL at 15 weeks. Lipid parameters showed significant improvements, except for high-density lipoprotein cholesterol. The frequency of logging meals and exercise was associated with body fat loss. CONCLUSIONS: This advanced smartphone app was a useful tool to maintain weight loss in overweight or obese people. PMID- 29035678 TI - The relationships between impact location and post-impact ball speed, bat torsion, and ball direction in cricket batting. AB - Three-dimensional kinematic data of bat and ball were recorded for 239 individual shots performed by twenty batsmen ranging from club to international standard. The impact location of the ball on the bat face was determined and assessed against the resultant instantaneous post-impact ball speed and measures of post impact bat torsion and ball direction. Significant negative linear relationships were found between post-impact ball speed and the absolute distance of impact from the midline medio-laterally and sweetspot longitudinally. Significant cubic relationships were found between the distance of impact from the midline of the bat medio-laterally and both a measure of bat torsion and the post-impact ball direction. A "sweet region" on the bat face was identified whereby impacts within 2 cm of the sweetspot in the medio-lateral direction, and 4.5 cm in the longitudinal direction, caused reductions in ball speed of less than 6% from the optimal value, and deviations in ball direction of less than 10 degrees from the intended target. This study provides a greater understanding of the margin for error afforded to batsmen, allowing researchers to assess shot success in more detail, and highlights the importance of players generating consistently central impact locations when hitting for optimal performance. PMID- 29035679 TI - Performance and membrane fouling of a step-fed submerged membrane sequencing batch reactor treating swine biogas digestion slurry. AB - To identify the performance of step-fed submerged membrane sequencing batch reactor (SMSBR) treating swine biogas digestion slurry and to explore the correlation between microbial metabolites and membrane fouling within this novel reactor, a lab-scale step-fed SMSBR was operated under nitrogen loading rate of 0.026, 0.052 and 0.062 g NH4+-N (gVSS.d)-1. Results show that the total removal efficiencies for NH4+-N, total nitrogen and chemical oxygen demand in the reactor (>94%, >89% and >97%, respectively) were high during the whole experiment. However, the cycle removal efficiency of NH4+-N decreased significantly when the nitrogen loading rate was increased to 0.062 g NH4+-N (gVSS.d)-1. The total removal efficiency of total phosphorus in the step-fed SMSBR was generally higher than 75%, though large fluctuations were observed during the experiments. In addition, the concentrations of microbial metabolites, i.e., soluble microbial products (SMP) and extracellular polymeric substances (EPS) from activated sludge increased as nitrogen loading rate increased, both showing quadratic equation correlations with viscosity of the mixed liquid in the step-fed SMSBR (both R2 > 0.90). EPS content was higher than SMP content, while protein (PN) was detected as the main component in both SMP and EPS. EPS PN was found to be well correlated with transmembrane pressure, membrane flux and the total membrane fouling resistance. Furthermore, the three-dimensional excitation-emission matrix fluorescence spectroscopy results suggested the tryptophan-like protein as one of the main contributors to the membrane fouling. Overall, this study showed that the step-fed SMSBR could be used to treat swine digestion slurry at nitrogen loading rate of 0.052 g NH4+-N (gVSS.d)-1, and the control strategy of membrane fouling should be developed based on reducing the tryptophan-like PN in EPS. PMID- 29035681 TI - Cervical spine disease in surgeons performing arthroscopy or laparoscopy. AB - : Minimal research exists regarding cervical spine disorders in surgeons who perform endoscopy. A confidential on-line survey regarding neck pain (NP), spine disease (SD), and radiculopathy/myelopathy (R/M) was sent to 722 surgeons from a managed, group-based health care system. 415 responded. 361 had endoscopy experience, of whom 24.4% had NP, 20.8% SD, and 3.9% R/M. Most respondents were less than 50 years of age (62.3%), and male (65.7%). Significant risk factors for NP included older age and female, whereas OB/Gyn specialty, increased age and job stress were for SD. After adjusting for age and gender, significant risk factors for NP and SD included greater surgeon experience. After also adjusting for job stress, significant risk factors for SD included increased surgeon experience and higher frequency of endoscopies. No association was found between use of digital OR. Endoscopy appears to place surgeons at higher risk of cervical disease. LEVEL OF EVIDENCE: Level 3. PMID- 29035682 TI - The role of miR319a and its target gene TCP4 in the regulation of pistil development in Prunus mume. AB - The microRNAs (miRNAs) comprise a broad class of non-coding small endogenous RNAs that are associated with many biological processes through the regulation of target genes, such as leaf morphogenesis and polarity, biotic and abiotic stress responses, and root and flower development. We identified a miRNA that affects flower development, miR319a, in Prunus mume. The Pm-miR319a target, Pm-TCP4, was validated by 5'RACE. The higher expression of Pm-TCP4 in imperfect flowers showed that Pm-TCP4 might promote pistil abortion. Further experiments showed that Pm miR319a negatively regulates the expression of Pm-TCP4 mRNAs and affected pistil development. Sixteen downstream genes of Pm-TCP4 related to flower development were predicted. Previous studies have shown that they have an impact on the development of pistils. In this study it was established that Pm-miR319a indirectly regulates the development of pistils by regulating its target gene Pm TCP4. PMID- 29035683 TI - Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first- and second-generation backcrosses between European and North American Atlantic salmon (Salmo salar). AB - Little is known about the genetic architecture of traits important for salmonid restoration ecology. We mapped quantitative trait loci (QTL) using single nucleotide polymorphisms (SNPs) for juvenile body length, weight, shape, and vertical skin pigmentation patterns (parr marks) within three hybrid backcross families between European and North American subspecies of Atlantic salmon. Amounts of variation in skin colour and pattern quantified in the two second generation transAtlantic families exceeded the ranges seen in purebred populations. GridQTL analyses using low-density female-specific linkage maps detected QTL showing experiment-wide significance on Ssa02, Ssa03, Ssa09, Ssa11, Ssa19, and Ssa26/28 for both length and weight; on Ssa04 and Ssa23 for parr mark number; on Ssa09 and Ssa13 for parr mark contrast; and on Ssa05, Ssa07, Ssa10, Ssa11, Ssa18, Ssa23, and Ssa26/28 for geometric morphometric shape coordinates. Pleiotrophic QTL on Ssa11 affected length, weight, and shape. No QTL was found that explained more than 10% of the phenotypic variance in pigmentation or shape traits. Each QTL was approximately positioned on the physical map of the Atlantic salmon genome. Some QTL locations confirmed previous studies but many were new. Studies like ours may increase the success of salmon restoration projects by enabling better phenotypic and genetic matching between introduced and extirpated strains. PMID- 29035684 TI - SOX10 induces epithelial-mesenchymal transition and contributes to nasopharyngeal carcinoma progression. AB - OBJECTIVE: The aim of this study was to investigate the role of SOX10 in nasopharyngeal carcinoma (NPC) and the underlying molecular mechanisms. METHODS: The expression of SOX10 was initially assessed in human NPC tissues and a series of NPC cell lines through quantitative real-time PCR (qRT-PCR) and Western blot. Then, cell proliferation, cycle, migration, and the invasiveness of NPC cells with knockdown of SOX10 were examined by MTT, flow cytometry, and Transwell migration and invasion assays, respectively. Finally, nude mice tumorigenicity experiments were performed to evaluate the effects of SOX10 on NPC growth and metastasis in vivo. RESULTS: SOX10 was significantly increased in NPC tissues and cell lines. In-vitro experiments revealed that loss of SOX10 obviously inhibited cell proliferation, migration, and invasiveness, as well as the epithelial mesenchymal transition (EMT) process in NPC cells. In-vivo experiments further demonstrated that disrupted SOX10 expression restrained NPC growth and metastasis, especially in lung and liver. CONCLUSION: Taken together, our data confirmed the role of SOX10 as an oncogene in NPC progression, and revealed that SOX10 may serve as a novel biomarker for diagnosis of NPC, as well as a potential therapeutic target against this disease. PMID- 29035685 TI - Mechanistic effect of human umbilical cord blood derived mesenchymal stem cells on the submandibular salivary gland in ovariectomized rats. AB - We performed this study to understand the effect of human umbilical cord blood derived mesenchymal stem cells (hUCB-MSCs) on the submandibular gland after bilateral ovariectomy. For this, 21 adult female rats were distributed equally among 3 groups: the sham-operated group (SHAM); the ovariectomized group (OVX); and the OVX group that received repeated intravenous injections of the hUCB-MSCs (OVX + hUCB-MSCs). We used reverse transcription - PCR to analyze for the gene expression of AQPs 3, 4, 5, and BMP-6. The cellular localization and expression of human CD105, human CD34, proliferating nuclear antigen (PCNA), single-stranded DNA (ss-DNA), caspase 3, AQP1, and alpha smooth muscle actin (alpha-SMA) were determined immunohistochemically. In the OVX group, a significant decrease in the gene expression of AQP3, AQP4, and BMP6, as well as the acinar area % was detected, while area % of granular convoluted tubules (GCTs) showed a significant increase. A significant decrease in area % staining positively for AQP1 and alpha SMA was noted. An obvious improvement in the structure of the submandibular gland was demonstrated in the group injected with hUCB-MSCs, as well as a significant increase in the gene expression of AQP3, AQP4, and BMP6. The acinar and GCT area %, as well as the different measured markers, were relatively normal. This demonstrates that E2-deficiency induces structural changes to the submandibular gland. Moreover, a definite amelioration of the structure and function of the submandibular gland was detected after the administration of hUCB-MSCs. PMID- 29035686 TI - The Human Odontoblast Cell Layer and Dental Pulp Proteomes and N-Terminomes. AB - The proteome and N-terminome of the human odontoblast cell layer were identified for the first time by shotgun proteomic and terminal amine isotopic labeling of substrates (TAILS) N-terminomic analyses, respectively, and compared with that of human dental pulp stroma from 26 third molar teeth. After reverse-phase liquid chromatography-tandem mass spectrometry, >170,000 spectra from the shotgun and TAILS analyses were matched by 4 search engines to 4,888 and 12,063 peptides in the odontoblast cell layer and pulp stroma, respectively. Within these peptide groups, 1,543 and 5,841 protein N-termini, as well as 895 and 2,423 unique proteins, were identified with a false discovery rate of <=1%. Thus, the human dental pulp proteome was expanded by 974 proteins not previously identified among the 4,123 proteins in our 2015 dental pulp study. Further, 222 proteins of the odontoblast cell layer were not found in the pulp stroma, suggesting many of these proteins are synthesized only by odontoblasts. When comparing the proteomes of older and younger donors, differences were more apparent in the odontoblast cell layer than in the dental pulp stroma. In the odontoblast cell layer proteome, we found proteomic evidence for dentin sialophosphoprotein, which is cleaved into dentin sialoprotein and dentin phosphoprotein. By exploring the proteome of the odontoblast cell layer and expanding the known dental pulp proteome, we found distinct proteome differences compared with each other and with dentin. Moreover, between 61% and 66% of proteins also occurred as proteoforms commencing with a neo-N-terminus not annotated in UniProt. Hence, TAILS increased proteome coverage and revealed considerable proteolytic processing, by identifying stable proteoforms in these dynamic dental tissues. All mass spectrometry raw data have been deposited to ProteomeXchange with the identifier , with the accompanying metadata at Mendeley Data ( https://data.mendeley.com/datasets/b57zfh6wmy/1 ). PMID- 29035687 TI - Acute glutamine ingestion modulates lymphocytic responses to exhaustive exercise in the heat. AB - The purpose of this study was to determine if acute intake of glutamine modulates homeostatic, hematologic, immune, and inflammatory responses to exhaustive exercise in the heat. Thirteen healthy, untrained young men participated in this randomized, double-blind, placebo-controlled, crossover study. They served as their own control and completed 2 trials of treadmill exercise at 40% maximal oxygen uptake to exhaustion in a hot environment (temperature, 38.0 +/- 1.0 degrees C; relative humidity, 60.0% +/- 5.0%; oxygen, 20.8%) following placebo (PLA) and glutamine (GLN) consumption. Heart rate, gastrointestinal temperature, forehead temperature, the rating of perceived exertion, and body weight were measured. Blood samples were collected before and after exercise. After exhaustive exercise in the heat (PLA vs. GLN: 42.0 +/- 9.5 vs. 39.6 +/- 7.8 min, p > 0.05), significant changes in homeostatic, hematologic, and immune parameters (elevated natural killer (NK) cells and neutrophils, and reduced CD4+/CD8+ ratio and CD19+ lymphocytes) were found in the control group owing to the time effect (p < 0.05). Moreover, a condition * time interaction effect was observed for the absolute count of CD3+ (F = 4.26, p < 0.05) and CD3+CD8+ T lymphocytes (F = 4.27, p < 0.05), which were elevated following acute glutamine intervention. While a potential interaction effect was also observed for the absolute count of CD3+CD4+ T lymphocytes (F = 3.21, p = 0.08), no condition or interaction effects were found for any other outcome measures. The results of this study suggest that acute glutamine ingestion evokes CD3+ and CD3+CD8+ T lymphocytosis but does not modulate neutrophil and NK cell leukocytosis and immune disturbances after exhaustive exercise in the heat. PMID- 29035688 TI - Why Social Relationships Are Important for Physical Health: A Systems Approach to Understanding and Modifying Risk and Protection. AB - Social relationships are adaptive and crucial for survival. This review presents existing evidence indicating that our social connections to others have powerful influences on health and longevity and that lacking social connection qualifies as a risk factor for premature mortality. A systems perspective is presented as a framework by which to move social connection into the realm of public health. Individuals, and health-relevant biological processes, exist within larger social contexts including the family, neighborhood and community, and society and culture. Applying the social ecological model, this review highlights the interrelationships of individuals within groups in terms of understanding both the causal mechanisms by which social connection influences physical health and the ways in which this influence can inform potential intervention strategies. A systems approach also helps identify gaps in our current understanding that may guide future research. PMID- 29035689 TI - Principles and Challenges of Applying Epigenetic Epidemiology to Psychology. AB - The interplay of genetically driven biological processes and environmental factors is a key driver of research questions spanning multiple areas of psychology. A nascent area of research focuses on the utility of epigenetic marks in capturing this intersection of genes and environment, as epigenetic mechanisms are both tightly linked to the genome and environmentally responsive. Advances over the past 10 years have allowed large-scale assessment of one epigenetic mark in particular, DNA methylation, in human populations, and the examination of DNA methylation is becoming increasingly common in psychological studies. In this review, we briefly outline some principles of epigenetics, focusing on highlighting important considerations unique to DNA methylation studies to guide psychologists in incorporating DNA methylation into a project. We discuss study design and biological and analytical considerations and conclude by discussing interpretability of epigenetic findings and how these important factors are currently being applied across areas of psychology. PMID- 29035690 TI - The Psychology of Music: Rhythm and Movement. AB - The urge to move to music is universal among humans. Unlike visual art, which is manifest across space, music is manifest across time. When listeners get carried away by the music, either through movement (such as dancing) or through reverie (such as trance), it is usually the temporal qualities of the music-its pulse, tempo, and rhythmic patterns-that put them in this state. In this article, we review studies addressing rhythm, meter, movement, synchronization, entrainment, the perception of groove, and other temporal factors that constitute a first step to understanding how and why music literally moves us. The experiments we review span a range of methodological techniques, including neuroimaging, psychophysics, and traditional behavioral experiments, and we also summarize the current studies of animal synchronization, engaging an evolutionary perspective on human rhythmic perception and cognition. PMID- 29035692 TI - Developmental Origins of Chronic Physical Aggression: A Bio-Psycho-Social Model for the Next Generation of Preventive Interventions. AB - This review describes a bio-psycho-social approach to understanding and preventing the development of chronic physical aggression. The debate on the developmental origins of aggression has historically opposed genetic and environmental mechanisms. Recent studies have shown that the frequency of physical aggression peaks in early childhood and then decreases until old age. Molecular genetic studies and twin studies have confirmed important genetic influences. However, recent epigenetic studies have highlighted the important role of environments in gene expression and brain development. These studies suggest that interrelated bio-psycho-social channels involved in the development of chronic physical aggression are generally the product of an intergenerational transmission process occurring through assortative mating, genetic inheritance, and the inheritance of physical and social environmental conditions that handicap brain functioning and support the use of physical aggression to solve problems. Given these intergenerational mechanisms and physical aggression onset in infancy, it appears clear that preventive interventions should start early in pregnancy, at the latest. PMID- 29035693 TI - MMS19 localizes to mitochondria and protects the mitochondrial genome from oxidative damage. AB - MMS19 localizes to the cytoplasmic and nuclear compartments involved in transcription and nucleotide excision repair (NER). However, whether MMS19 localizes to mitochondria, where it plays a role in maintaining mitochondrial genome stability, remains unknown. In this study, we provide the first evidence that MMS19 is localized in the inner membrane of mitochondria and participates in mtDNA oxidative damage repair. MMS19 knockdown led to mitochondrial dysfunctions including decreased mtDNA copy number, diminished mtDNA repair capacity, and elevated levels of mtDNA common deletion after oxidative stress. Immunoprecipitation - mass spectrometry analysis identified that MMS19 interacts with ANT2, a protein associated with mitochondrial ATP metabolism. ANT2 knockdown also resulted in a decreased mtDNA repair capacity after oxidative damage. Our findings suggest that MMS19 plays an essential role in maintaining mitochondrial genome stability. PMID- 29035691 TI - How We Hear: The Perception and Neural Coding of Sound. AB - Auditory perception is our main gateway to communication with others via speech and music, and it also plays an important role in alerting and orienting us to new events. This review provides an overview of selected topics pertaining to the perception and neural coding of sound, starting with the first stage of filtering in the cochlea and its profound impact on perception. The next topic, pitch, has been debated for millennia, but recent technical and theoretical developments continue to provide us with new insights. Cochlear filtering and pitch both play key roles in our ability to parse the auditory scene, enabling us to attend to one auditory object or stream while ignoring others. An improved understanding of the basic mechanisms of auditory perception will aid us in the quest to tackle the increasingly important problem of hearing loss in our aging population. PMID- 29035694 TI - Novel Zirconia Materials in Dentistry. AB - Zirconias, the strongest of the dental ceramics, are increasingly being fabricated in monolithic form for a range of clinical applications. Y-TZP (yttria stabilized tetragonal zirconia polycrystal) is the most widely used variant. However, current Y-TZP ceramics on the market lack the aesthetics of competitive glass-ceramics and are therefore somewhat restricted in the anterior region. This article reviews the progressive development of currently available and next generation zirconias, representing a concerted drive toward greater translucency while preserving adequate strength and toughness. Limitations of efforts directed toward this end are examined, such as reducing the content of light-scattering alumina sintering aid or incorporating a component of optically isotropic cubic phase into the tetragonal structure. The latest fabrication routes based on refined starting powders and dopants, with innovative sintering protocols and associated surface treatments, are described. The need to understand the several, often complex, mechanisms of long-term failure in relation to routine laboratory test data is presented as a vital step in bridging the gaps among material scientist, dental manufacturer, and clinical provider. PMID- 29035695 TI - Expression of macrophage genes within skeletal muscle correlates inversely with adiposity and insulin resistance in humans. AB - Local inflammation in obese adipose tissue has been shown to contribute to insulin resistance; however, the role of macrophage infiltration within skeletal muscle is still debatable. This study aimed to evaluate the association of skeletal muscle macrophage gene expression with adiposity levels and insulin sensitivity in obese patients. Twenty-two nondiabetic obese patients and 23 healthy lean controls were included. Obese patients underwent a 3-month weight loss intervention. Macrophage gene expression in skeletal muscle (quantitative real-time polymerase chain reaction), body composition (dual-energy X-ray absorptiometry), and insulin sensitivity (homeostatic model assessment (HOMA) and oral glucose tolerance test) were compared between groups and their associations were analyzed. To validate skeletal muscle findings, we repeated the analyses with macrophage gene expression in adipose tissue. Expression levels of macrophage genes (CD68, CD11b, CD206, CD16, CD40, and CD163) were lower in skeletal muscle tissue of obese versus lean participants. Macrophage gene expression was also found to be inversely associated with adiposity, fasting insulin, and HOMA (r = -0.4 ~ -0.6, p < 0.05), as well as positively associated with insulin sensitivity (r = 0.4 ~ 0.8, p < 0.05). On the other hand, adipose tissue macrophage gene expression showed higher levels in obese versus lean participants, presenting a positive association with adiposity levels. Macrophage gene expression, in both skeletal and adipose tissue samples, was only minimally affected by the weight loss intervention. In contrast with the established positive relationship between adiposity and macrophage gene expression, an unexpected inverse correlation between these 2 variables was observed in skeletal muscle tissue. Additionally, muscle macrophage gene expression was inversely correlated with insulin resistance. PMID- 29035696 TI - The Reliability of Surgical Apgar Score in Predicting Immediate and Late Postoperative Morbidity and Mortality: A Narrative Review. AB - Surgical Apgar Score is a simple, 10-point scoring system in which a low score reliably identifies those patients at risk for adverse perioperative outcomes. Surgical techniques and anesthesia management should be directed in such a way that the Surgical Apgar Score remains higher to avoid postoperative morbidity and mortality. PMID- 29035698 TI - Denosumab as a Treatment Alternative for Central Giant Cell Granuloma: A Long Term Retrospective Cohort Study. AB - PURPOSE: Giant cell granuloma (GCG) of the jaw is a rare disease with high morbidity. Various treatment options have been discussed in the past. Since 2010, a pharmaceutical therapy with denosumab seems to have been successful for giant cell tumors of the femur. The authors hypothesized the equally successful use of denosumab for GCGs of the jaws. MATERIALS AND METHODS: In the present retrospective cohort study, 5 patients with large GCGs of the jaws were treated with denosumab with a follow-up of 25 to 49 months. Frequent clinical follow-ups and a radiologic follow-up were performed and systematically analyzed. RESULTS: All patients showed a curative treatment response and complete metabolic resolution of the GCGs under treatment with denosumab. CONCLUSION: A brief review of the relevant literature and a detailed evaluation of current cases led to the conclusion that denosumab therapy should be considered a therapeutic option for large central GCGs of the jaws. The results of this study suggest denosumab is a successful treatment option. A treatment length no shorter than 12 months is recommended and monitoring of treatment response can be well managed by positron emission tomographic computed tomography or magnetic resonance imaging. PMID- 29035699 TI - Risk Factors for Complications of Intraoral Removal of Submandibular Sialoliths. AB - PURPOSE: Intraoral removal of submandibular sialoliths is a surgical technique for the treatment of sialolithiasis and is reported to have excellent outcomes. The aim of this study was to determine the risk factors leading to complications of this procedure. PATIENTS AND METHODS: The medical records of 200 patients who had undergone intraoral removal of sialoliths from January 2006 through June 2015 were retrospectively reviewed. A telephone survey was used to check postoperative symptoms. Dry mouth, wound infection, lingual nerve dysfunction, and recurrence were considered complications. Computed tomograms of the neck were reviewed for location, shape, number, and size of the stone. RESULTS: Forty-four patients reported a complication. The incidence of complications was significantly higher in patients with stones in the proximal region of the salivary duct (proximal group) than in those with middle or distally located stones (middle/distal group; P < .05). The average stone size was larger in the proximal group; the operation time and length of admission also were longer in the proximal group, with a statistically significant difference (P < .05). Complaints of lingual nerve dysfunction were significantly higher in the proximal group than in the middle/distal group (P < .05). CONCLUSION: Patients with proximally located stones had more complications, especially lingual nerve dysfunction, than those with middle or distally located stones. The former group also required a longer operation time and hospital stay. PMID- 29035697 TI - Subterranean mammals show convergent regression in ocular genes and enhancers, along with adaptation to tunneling. AB - The underground environment imposes unique demands on life that have led subterranean species to evolve specialized traits, many of which evolved convergently. We studied convergence in evolutionary rate in subterranean mammals in order to associate phenotypic evolution with specific genetic regions. We identified a strong excess of vision- and skin-related genes that changed at accelerated rates in the subterranean environment due to relaxed constraint and adaptive evolution. We also demonstrate that ocular-specific transcriptional enhancers were convergently accelerated, whereas enhancers active outside the eye were not. Furthermore, several uncharacterized genes and regulatory sequences demonstrated convergence and thus constitute novel candidate sequences for congenital ocular disorders. The strong evidence of convergence in these species indicates that evolution in this environment is recurrent and predictable and can be used to gain insights into phenotype-genotype relationships. PMID- 29035702 TI - Editorial Comment. PMID- 29035701 TI - Does SOFA predict outcomes better than SIRS in Brazilian ICU patients with suspected infection? A retrospective cohort study. AB - We compared the discriminatory capacity of the sequential organ failure assessment (SOFA) versus the systemic inflammatory response syndrome (SIRS) score for predicting ICU mortality, need for and length of mechanical ventilation, ICU stay, and hospitalization in patients with suspected infection admitted to a mixed Brazilian ICU. We performed a retrospective analysis of a longitudinal ICU database from a tertiary hospital in Southern Brazil. Patients were categorized according to whether they met the criteria for sepsis according to SOFA (variation >=2 points over the baseline clinical condition) and SIRS (SIRS score >=2 points). From January 2008 to December 2014, 1487 patients were admitted to the ICU due to suspected infection. SOFA >=2 identified more septic patients than SIRS >=2 (79.0% [n=1175] vs. 68.5% [n=1020], p<0.001). There was no difference between the two scores in predicting ICU mortality (area under the receiver operating characteristic curve (AUROC)=0.64 vs. 0.64, p=0.99). SOFA >=2 was marginally better than SIRS >=2 in predicting need for mechanical ventilation (AUROC=0.64 vs. 0.62, p=0.001), ICU stay>7 days (AUROC=0.65 vs. 0.63, p=0.004), and length of hospitalization >10 days (AUROC=0.61 vs. 0.59, p<0.001). There was no difference between the two scores in predicting mechanical ventilation >7 days. PMID- 29035703 TI - A randomized clinical trial examining the effects of an anxiety sensitivity intervention on insomnia symptoms: Replication and extension. AB - Insomnia disorder is impairing and prevalent, particularly among individuals with comorbid anxiety disorders. Despite the availability of effective computerized treatments for insomnia, there are few that target both insomnia as well as co occurring anxiety symptoms. The current study tests the efficacy of a computerized treatment for anxiety sensitivity cognitive concerns, a transdiagnostic risk factor for anxiety, mood, and insomnia symptoms, against a repeated contact control, on reducing insomnia symptoms. Hypotheses were tested in a mixed clinical sample of community individuals presenting for a treatment study (n = 151) who were followed up 1-, 3- and 6-months after treatment. Results indicated that the anxiety sensitivity intervention resulted in reductions in insomnia symptoms and clinically significant insomnia scores at 3- and 6-month follow-ups. These reductions remained significant when covarying for concurrent reductions in depression and anxiety. Models accounted for 15-54% of the variance in follow-up insomnia symptoms. Current findings add to a growing body of literature suggesting anxiety sensitivity may play a causal role in insomnia symptoms. Results also suggest that targeting anxiety sensitivity may be an effective way to reduce insomnia symptoms in a brief and portable intervention that also reduces symptoms commonly comorbid with insomnia disorder. PMID- 29035704 TI - Anesthetic management of a patient with benign tracheal tumor identified at induction of general anesthesia. PMID- 29035705 TI - Linking patients with buprenorphine treatment in primary care: Predictors of engagement. AB - BACKGROUND: Office-based buprenorphine treatment promises to expand effective treatment for opioid use disorder. Unfortunately, patients may be lost during engagement, before induction with medication. Few data are available regarding rates and predictors of successfully reaching induction. METHODS: The sample included 100 consecutive patients seeking treatment in 2016 at an office-based buprenorphine treatment program in an urban, academic primary care clinic. Patients completed phone intake, nurse visit and physician visit prior to induction. We reviewed electronic medical records to describe the time to complete each step and used multivariable logistic regression to identify predictors of reaching induction. RESULTS: Sixty percent of the sample dropped out prior to induction, with the majority dropping out prior to the nurse visit. For patients who successfully completed induction, median time between screening and induction was 18days (interquartile range 13-30days). After adjustment for other factors, completing induction was significantly less likely in patients with recent polysubstance use (OR=0.15, 95% CI=0.04-0.53), prior methadone treatment (OR=0.05, 95% CI=0.01-0.36), prior buprenorphine treatment (OR=0.60, 95% CI=0.01-0.47), or other prior treatment (OR=0.19, 95% CI=0.04-0.98). Sociodemographic characteristics, such as younger age, minority race/ethnicity, homelessness, unemployment, history of incarceration and relationship status were not significant predictors. CONCLUSIONS: Over half of patients beginning primary care buprenorphine treatment were not successful in starting medication. Those with polysubstance use or previous substance use treatment were least likely to be successful. Programs should carefully consider barriers that might prevent treatment-seeking patients from starting medications. Some patients might need enhanced support to successfully start treatment with buprenorphine. PMID- 29035706 TI - Serious suicide attempts in outpatients with multiple substance use disorders. AB - BACKGROUND: Suicide is a major public health concern and suicide attempts (SA) are frequent and burdensome in people suffering from substance use disorders (SUDs). In particular, serious SAs are a preoccupying form of attempt, which remain largely overlooked in these populations, especially regarding basic risk factors such as gender, addictive comorbidity and substance use patterns. Thus, we undertook a gender-specific approach to identify the risk factors for serious SAs in outpatients with multiple SUDs. MATERIAL AND METHODS: 433 Treatment seeking outpatients were consecutively recruited in specialized care centers and reliably classified as serious, non-serious and non-suicide attempters. We also characterized lifetime exposure to SUDs, including tobacco smoking, with standardized instruments. Current medication, including psychotropic treatments were collected, which informed psychiatric diagnoses. Multinomial regression identified independent factors specifically associated with serious SAs in each gender, separately. RESULTS: 32% Participants (N=139, 47% Women and 27% Men) reported lifetime SA. There were 82 serious attempters (59% of attempters), without significant gender difference. Sedative dependence was an independent risk factor for serious SA compared to non-SA in Women and compared to non serious SA in Men, respectively. Other risk factors included later onset of daily tobacco smoking in Men and history of psychiatric hospitalizations in Women, whose serious SA risk was conversely lower when reporting opiate use disorder or mood disorder, probably because of treatment issues. CONCLUSIONS: Despite several study limitations, we identified subgroups for a better-tailored prevention of serious SAs among individuals with SUDs, notably highlighting the need to better prevent and treat sedative dependence. PMID- 29035707 TI - Clinician identification of elevated symptoms of depression among individuals seeking treatment for substance misuse. AB - BACKGROUND: Depression is common among those experiencing alcohol and other drug (AOD) disorders. It has been suggested that identifying depressive symptoms among this group is important for case management. Despite this, there is a lack of research examining how well clinicians perform this task within this setting. AIMS: To determine the: (i) accuracy of clinician identified elevated symptoms of depression among clients seeking treatment for AOD misuse as compared to a standardized self-report psychiatric screening tool; and (ii) clinician and client characteristics associated with accurate identification of elevated symptoms of depression. METHODS: The study used a descriptive cohort design. Participants from two Australian AOD outpatient clinics reported demographic data and completed the Patient Health Questionnaire (PHQ-9) to identify elevated symptoms of depression. Clinicians were asked to indicate the presence or absence of depression for individual clients. Client and clinician data were compared. RESULTS: Sensitivity of clinician identified elevated symptoms of depression, compared with the PHQ-9, was moderate at 73.0% (95% CI=63.7, 81.0) and specificity was low with 49.5% (95% CI=39.9, 61.2) accurately identified as not having elevated symptoms of depression. AOD clinicians' years' of experience, clients' main substance and length of treatment were associated with accuracy of identification. CONCLUSION: Clinicians identify elevated symptoms of depression with moderate accuracy amongst individuals with AOD disorders. There is a tendency to over-identify which may contribute to inaccuracies. Routine screening may assist in improving identification of depressive symptoms and place greater focus on mental health comorbidities. PMID- 29035708 TI - An assessment of the utilization of the preclinical rodent model literature in clinical trials of putative therapeutics for the treatment of alcohol use disorders. AB - OBJECTIVE: Rodent models of Alcohol Use Disorders (AUD) are used extensively by preclinical researchers to develop new therapeutics for the treatment of AUD. Although these models play an important role in the development of novel, targeted therapeutics, their role in bringing therapeutics to clinical trials is unclear, as off-label use of existing medications not approved for the treatment of AUD is commonly seen in the clinic and clinical trials. METHOD: In the current study, we used the Clinicaltrials.gov database to obtain a list of drugs that have been tested for efficacy in a clinical trial between 1997 and 2017. We then conducted a set of literature searches to determine which of the 98 unique drugs we identified had shown efficacy in a rodent model of an AUD prior to being tested in a clinical trial. RESULTS: We found that slightly less than half of the drugs tested in clinical trials (48%) had shown prior efficacy in any rodent model of an AUD, while the remaining 52% of drugs were used off-label, or in some cases, following non-published studies. CONCLUSION: This study raises the question of how clinical researchers incorporate results from preclinical studies in the decision to bring a drug to a clinical trial. Our results underscore the need for ongoing communication among preclinical and clinical researchers. PMID- 29035709 TI - Heart rate variability and salivary cortisol in very preterm children during school age. AB - The autonomic nervous system (ANS) plays a major role in the human stress response and reflects physical and psychological adaptability to a changing environment. Long-term exposure to early life stressors may alter the function of the ANS. The present study examines differences in the ANS between children born very preterm and full-term as well as the association between the ANS and the hypothalamic-pituitary-adrenal (HPA) axis, the other main branch of the human stress system. Fifty-four healthy children born very preterm (<32nd gestational week) and 67 full-term children aged 7-12 years provided data for the present study. Polysomnography (PSG) assessments were obtained during a night at the children's home in lying position at rest (wake) and during different sleep stages (stage 2 sleep, slow wave sleep, rapid-eye-movement sleep). Autonomic function was assessed by use of heart rate variability, specifically low frequency power (LF), high frequency power (HF), total spectral power (Tot Pow), and the LF/HF ratio. HPA axis activity was measured using salivary cortisol the next morning at awakening, 10, 20, and 30min later. Children born very preterm had lower LF/HF ratio during wake and stage 2 sleep compared to full-term children. Moreover, higher LF, Tot Pow, and LF/HF ratio during wake, stage 2 sleep, and REM sleep were related to more post-awakening cortisol secretion. The present study provides evidence on long-term ANS alterations after very preterm birth. Moreover, findings suggest a relation between the ANS and the HPA axis and therefore support the notion of mutual feedback between the two human stress systems. PMID- 29035710 TI - Blunted basal corticosterone pulsatility predicts post-exposure susceptibility to PTSD phenotype in rats. AB - The basal activity of the hypothalamic-pituitary-adrenal axis is highly dynamic and is characterized by both circadian and ultradian (pulsatile) patterns of hormone secretion. Pulsatility of glucocorticoids has been determined to be critical for optimal transcriptional, neuroendocrine, and behavioral responses. We used an animal model of post-traumatic stress disorder (PTSD) to assess whether stress-induced impairment of behavioral responses is correlated with aberrant secretion of corticosterone. Serial blood samples were collected manually via the jugular vein cannula during the light-(inactive)-phase in conscious male rats at 20-min intervals for a period of 5h before and 6.5h after exposure to predator scent stress. The outcome measures included behavior in an elevated plus-maze and acoustic startle response 7days after exposure. Individual animals were retrospectively classified as having "extreme", "partial", or "minimal" behavioral responses according to pre-set cut-off criteria for behavioral response patterns. Corticosterone secretion patterns were analyzed retrospectively. Under basal conditions, the amplitude of ultradian oscillations of corticosterone levels, rather than the mean corticosterone level or the frequency of corticosterone pulsatility, was significantly reduced in individuals who displayed PTSD-phenotype 8days later. In addition, extreme disruption of behavior on day 8 post-exposure was also characterized by a blunting of corticosterone response to the stressor. Animals with behavior that was only partially affected or unaffected displayed none of the above changes. Blunted basal corticosterone pulse amplitude is a pre-existing susceptibility or risk factor for PTSD, which originates from prior (life) experiences and may therefore predict post-exposure PTSD-phenotype in rats. PMID- 29035712 TI - Process integration for material synthesis from a deactivated catalyst: Studies on the interaction of metal ions between two immiscible phases. AB - Present investigation deals with the treatment of deactivated Co-Mn bromide catalyst for the recovery of Co and Mn as Co metal powder and chemical manganese dioxide by an integrated process comprising of a selective metal ion transfer from an aqueous solution containing a mixture of metal ions with a saponified solution of di-2ethyl-hexyl phosphoric acid, followed by selective scrubbing and metal stripping. The pure metal solutions so obtained were subjected to precipitation and hydrothermal treatment to obtain a desired material. The deactivated catalyst was leached by H2SO4 in presence of H2O2 followed by removing Fe, Si etc. The purified leach liquor of composition: 6.9g/L Co, 9.4g/L Mn was used for detail study to optimize the best conditions for the separation of Co from Mn. Experimental observations show that the extraction of both increased with increasing equilibrium pH and the concentration of the organic, with a separation factor of about 10, at equilibrium pH of 3. A quantitative extraction of Mn was possible with 20% D2EHPA in three stage counter-current extraction. After Co scrubbing, Mn was stripped with dilute H2SO4 and high pure spherical shaped CMD was produced. Co in the raffinate was recovered as powder by hydrothermal H2- reduction. PMID- 29035713 TI - An overview of chemical additives present in plastics: Migration, release, fate and environmental impact during their use, disposal and recycling. AB - Over the last 60 years plastics production has increased manifold, owing to their inexpensive, multipurpose, durable and lightweight nature. These characteristics have raised the demand for plastic materials that will continue to grow over the coming years. However, with increased plastic materials production, comes increased plastic material wastage creating a number of challenges, as well as opportunities to the waste management industry. The present overview highlights the waste management and pollution challenges, emphasising on the various chemical substances (known as "additives") contained in all plastic products for enhancing polymer properties and prolonging their life. Despite how useful these additives are in the functionality of polymer products, their potential to contaminate soil, air, water and food is widely documented in literature and described herein. These additives can potentially migrate and undesirably lead to human exposure via e.g. food contact materials, such as packaging. They can, also, be released from plastics during the various recycling and recovery processes and from the products produced from recyclates. Thus, sound recycling has to be performed in such a way as to ensure that emission of substances of high concern and contamination of recycled products is avoided, ensuring environmental and human health protection, at all times. PMID- 29035711 TI - Childhood adversity, social support, and telomere length among perinatal women. AB - Adverse perinatal health outcomes are heightened among women with psychosocial risk factors, including childhood adversity and a lack of social support. Biological aging could be one pathway by which such outcomes occur. However, data examining links between psychosocial factors and indicators of biological aging among perinatal women are limited. The current study examined the associations of childhood socioeconomic status (SES), childhood trauma, and current social support with telomere length in peripheral blood mononuclear cells (PBMCs) in a sample of 81 women assessed in early, mid, and late pregnancy as well as 7-11 weeks postpartum. Childhood SES was defined as perceived childhood social class and parental educational attainment. Measures included the Childhood Trauma Questionnaire, Center for Epidemiologic Studies-Depression Scale, Multidimensional Scale of Perceived Social Support, and average telomere length in PBMCs. Per a linear mixed model, telomere length did not change across pregnancy and postpartum visits; thus, subsequent analyses defined telomere length as the average across all available timepoints. ANCOVAs showed group differences by perceived childhood social class, maternal and paternal educational attainment, and current family social support, with lower values corresponding with shorter telomeres, after adjustment for possible confounds. No effects of childhood trauma or social support from significant others or friends on telomere length were observed. Findings demonstrate that while current SES was not related to telomeres, low childhood SES, independent of current SES, and low family social support were distinct risk factors for cellular aging in women. These data have relevance for understanding potential mechanisms by which early life deprivation of socioeconomic and relationship resources affect maternal health. In turn, this has potential significance for intergenerational transmission of telomere length. The predictive value of markers of biological versus chronological age on birth outcomes warrants investigation. PMID- 29035714 TI - Biodegradation of triclosan in diatom Navicula sp.: Kinetics, transformation products, toxicity evaluation and the effects of pH and potassium permanganate. AB - Triclosan (TCS) is one of the most widely used pharmaceutically active compounds and frequently detected in treated wastewater and the impacted aquatic environment. However, the fate and toxicity of TCS in aquatic organisms is poorly known, including in particular the potential for the formation of incomplete biological transformation products. In this study, TCS posed high toxic effects (e.g., growth inhibition and damage of photosynthesis) to typical freshwater diatom Navicula sp., with the 24h and 72h EC50 values of 173.3 and 145.6MUgL-1, respectively. The bioaccumulation of TCS in diatom cells increased with the increasing exposure to TCS and showed to be time-dependent. The higher intracellular TCS lead to higher toxicity on Navicula sp. The intracellular TCS concentration and the growth inhibition of TCS in Navicula sp. at pH 7.5 was obviously higher than that at pH 8.3, which was likely due to the higher abundance of unionized TCS in the culture. KMnO4 reduced both bioaccumulation and toxicity of TCS in Navicula sp., especially at pH 8.3. A total of seven products were detected by liquid chromatography-tandem mass spectrometry (LC-MS/MS). These findings will provide a reference for the risk assessment of TCS in aquatic environment. PMID- 29035715 TI - Linear and crosslinked Polyurethanes based catalysts for reduction of methylene blue. AB - The large amount of synthetic dyes in effluents is a serious concern to be addressed. The chemical reduction is one of the potential way to resolve this problem. In this study, linear and crosslinked polyurethanes i.e. LPUR & CLPUR were synthesized from toluene diisocyanate (TDI), polyethylene glycol (PEG;1000g/mole) and tetraethylenepentamine (TEPA). The structure and morphology of synthesized materials were examined by FTIR, SEM and BET. The CLPUR was found stable in aqueous system with 0.80g/cm3 density and 16.4998m2g-1 surface area. These materials were applied for the reduction of methylene blue in presence of NaBH4. Both, polymers catalyzed the process and showed 100% reduction in 16 and 28mins., respectively, while, the reduction rate was significantly low in absence of these materials, even after 120mins. Furthermore, negligible adsorption was observed with only 7% removal of dye. The best reduction rates were observed at low concentration of dye, increasing concentration of NaBH4 and with more dosage of polymeric catalyst. The kinetic study of process followed zero order kinetics. It was hence concluded that both synthesized polymers played a catalytic role in reduction process. However, stability in aqueous system and better efficiency in reduction process endorsed CLPUR as an optimal choice for further studies. PMID- 29035716 TI - Synthesis, photophysical and cellular characterisation of folate and methotrexate labelled luminescent lanthanide complexes. AB - In this work we have developed a series of highly emissive europium(III) and terbium(III) complexes tethered to either folic acid (FA) or methotrexate (MTX), with the aim of developing visual probes that enable the imaging of folate receptors in cancer cells. The synthesis, photophysical properties and cellular behaviour are reported for four new lanthanide Ln(III) complexes, where either FA or MTX are tethered to 1,4,7-tris(carbonylmethyl)-10-(4'-quinolineacetic acid, (7'-acetamido)-1',2'-dihydro-2'-oxo)-1,4,7,10-tetraazacyclododecane Ln(III) complex, and Ln(III)=Eu(III) or Tb(III); herein referred to as Eu-FA, Eu-MTX, Tb FA or Tb-MTX. All four complexes were found to be sensitive to the presence of the folate receptor in a range of cell lines. The MTX conjugates showed different cellular specificity in an oral adenosquamous carcinoma cell line (CAL-27) compared with the analogous FA conjugates. This suggests that it is viable to explore differences in folate receptors using folate vs. anti-folate probes, with labels that have different emissive properties (e.g. Eu-FA vs. Tb-MTX). The MTX complexes were found to be the most cytotoxic, with Eu-MTX showing greater cytotoxicity than free MTX or the isostructural Tb-MTX. This suggested that there could be a synergistic effect on toxicity for the Eu(III) chelate and the MTX components of the complex. PMID- 29035717 TI - Concordance of health states in couples: Analysis of self-reported, nurse administered and blood-based biomarker data in the UK Understanding Society panel. AB - We use self-reported health measures, nurse-administered measurements and blood based biomarkers to examine the concordance between health states of partners in marital/cohabiting relationships in the UK. A model of cumulative health exposures is used to interpret the empirical pattern of between-partner health correlation in relation to elapsed relationship duration, allowing us to distinguish non-causal correlation due to assortative mating from potentially causal effects of shared lifestyle and environmental factors. We find important differences between the results for different health indicators, with strongest homogamy correlations observed for adiposity, followed by blood pressure, heart rate, inflammatory markers and cholesterol, and also self-assessed general health and functional difficulties. We find no evidence of a "dose-response relationship" for marriage duration, and show that this suggests - perhaps counterintuitively - that shared lifestyle factors and homogamous partner selection make roughly equal contributions to the concordance we observe in most of the health measures we examine. PMID- 29035718 TI - Assessment of the coding accuracy of warfarin-related bleeding events. AB - INTRODUCTION: Using International Classification of Diseases, 9th edition (ICD-9) diagnosis codes to identify potential warfarin-related bleeding events from administrative datasets is highly efficient but may be prone to identifying non events. The objective of this study was to evaluate the ability of bleeding related ICD-9 codes to identify true bleeding events in patients who were receiving warfarin therapy at the time of hospitalization. METHODS: This was a cross-sectional study conducted in an integrated healthcare delivery system. Anticoagulated patients aged >=18years and hospitalized between January 1, 2014 and March 31, 2014 were identified using administrative data queries. All hospitalizations were manually chart reviewed by a trained abstractor blinded to hospitalization diagnoses to assess for true bleeding events. Identification of the presence or lack of bleeding-related ICD-9 diagnosis code(s) for each hospitalization was then performed. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated for each ICD-9 code present. RESULTS: There were 486 hospitalizations in 468 anticoagulated patients with 57 true bleeding events identified. Patients had a mean age of 73.4years and 50% were female. For codes in the principal position, sensitivity, specificity, PPV, and NPV were 7.0%, 99.8%, 80.0%, and 89.0%, respectively. For codes in any position, sensitivity, specificity, PPV, and NPV were 94.7%, 90.9%, 58.1%, and 99.2%, respectively. For major bleeding, sensitivity, specificity, PPV, and NPV were 100%, 83.1%, 14.0%, and 100%, respectively. CONCLUSIONS: While the absence of a bleeding ICD-9 code reliably ruled-out hospitalization for warfarin-related bleeding, bleeding ICD-9 codes in the principal position were rarely used and undesirable false positive rates were identified when ICD-9 codes when recorded in any position and for major bleeding. Manual chart review is recommended to validate bleeding events from administrative data. PMID- 29035719 TI - Recent advancements in the mitigation of obnoxious nitrogenous gases. AB - Nitrogenous gaseous emissions commonly have an obnoxious odor associated with it, which when discharged into the environment results in serious environmental problems and health hazards. Several strategies for mitigation of nitrogenous odorants have been reported which include physical, chemical and biological methods. Biological treatments are widely employed because of their efficiency even at low concentration, where physical and chemical methods are not effective. Most commonly used biological treatment methods are biofiltration, biotrickling filters and membrane bioreactors with innovative reactor design, mixing pattern, and air sparging, for example FEBR, ALR, etc. These treatment methods require a critical assessment for the mitigation of obnoxious nitrogen emissions, especially in the context of environmental protection. This review offers a critical evaluation of treatment methods for the mitigation of nitrogenous odorous compound with a key emphasis on biological treatment systems. Also, various mathematical modelling techniques required for optimized operation of biotreatment systems has been discussed. PMID- 29035720 TI - An internationally standardized species identification test for use on suspected seized rhinoceros horn in the illegal wildlife trade. AB - Rhinoceros (rhino) numbers have dwindled substantially over the past century. As a result, three of the five species are now considered to be critically endangered, one species is vulnerable and one species is near-threatened. Poaching has increased dramatically over the past decade due to a growing demand for rhino horn products, primarily in Asia. Improved wildlife forensic techniques, such as validated tests for species identification of seized horns, are critical to aid current enforcement and prosecution efforts and provide a deterrent to future rhino horn trafficking. Here, we present an internationally standardized species identification test based on a 230 base pair cytochrome-b region. This test improves on previous nested PCR protocols and can be used for the discrimination of samples with <20pg of template DNA, thus suitable for DNA extracted from horn products. The assay was designed to amplify water buffalo samples, a common 'rhino horn' substitute, but to exclude human DNA, a common contaminant. Phylogenetic analyses using this partial cytochrome-b region resolved the five extant rhino species. Testing successfully returned a sequence and correct identification for all of the known rhino horn samples and vouchered rhino samples from museum and zoo collections, and provided species level identification for 47 out of 52 unknown samples from seizures. Validation and standardization was carried out across five different laboratories, in four different countries, demonstrating it to be an effective and reproducible test, robust to inter laboratory variation in equipment and consumables (such as PCR reagents). This is one of the first species identification tests to be internationally standardized to produce data for evidential proceedings and the first published validated test for rhinos, one of the flagship species groups of the illegal wildlife trade and for which forensic tools are urgently required. This study serves as a model for how species identification tests should be standardized and disseminated for wildlife forensic testing. PMID- 29035721 TI - Cdc42 is essential for the polarized movement and adhesion of human dental pulp stem cells. AB - OBJECTIVE: Stem cell-based tissue repair and regeneration require the regulation of cell migration and adhesion. As a regulator of cell polarization, Cdc42 (cell division control protein 42) plays a basic role at the initial stage of cell migration and adhesion. This study explores the effect of Cdc42 on the polarized migration and adhesion of hDPSCs (human dental pulp stem cells). DESIGN: HDPSCs were isolated from extracted third molars and transfected with siRNA targeted against Cdc42. Scratch wound assays and transwell assays were performed to detect the migration of human dental pulp stem cells. Polarization assays were applied to explore the polarized movement of Golgi bodies and nuclei. Western blot was used to examine the expression of related proteins. RESULTS: The expression of Cdc42 was knocked down by siRNA transfection, which inhibited the migration of hDPSCs in both the scratch wound assays and transwell assays. Meanwhile, the proportion of polarized hDPSCs during migration was also decreased, and the adhesion ability of hDPSCs was downregulated. Western blot demonstrated that these effects were dependent on FAK (focal adhesion kinase), beta-catenin and GSK3beta (Glycogen synthase kinase-3beta). CONCLUSION: Our study demonstrates that Cdc42 plays an essential role during the polarized movement and adhesion of hDPSCs. PMID- 29035722 TI - Multiple complex somatosensory systems in mature rat molars defined by immunohistochemistry. AB - OBJECTIVE: Intradental sensory receptors trigger painful sensations and unperceived mechanosensitivity, but the receptor bases for those functions are only partly defined. We present new evidence here concerning complex endings of myelinated axons in rat molars. DESIGN: We sectioned mature rat jaws in sagittal and transverse planes to analyze neural immunoreactivity (IR) for parvalbumin, peripherin, neurofilament protein, neurotrophin receptors, synaptophysin, calcitonin gene-related peptide (CGRP), or mas-related g-protein-receptor-d (Mrgprd). RESULTS: We found two complex sensory systems in mature rat molar dentin that labeled with neurofilament protein-IR, plus either parvalbumin-IR or peripherin-IR. The parvalbumin-IR system made extensively branched, beaded endings focused into dentin throughout each pulp horn. The peripherin-IR system primarily made unbeaded, fork-shaped dentinal endings scattered throughout crown including cervical regions. Both of these systems differed from neuropeptide CGRP IR. In molar pulp we found peripherin- and parvalbumin-IR layered endings, either near special horizontal plexus arrays or in small coiled endings near tangled plexus, each with specific foci for specific pulp horns. Parvalbumin-IR nerve fibers had Abeta axons (5-7MUm diameter), while peripherin-IR axons were thinner Adelta size (2-5MUm). Mechano-nociceptive Mrgprd-IR was only found in peripherin IR axons. CONCLUSIONS: Complex somatosensory receptors in rat molars include two types of dentinal endings that both differ from CGRP-IR endings, and at least two newly defined types of pulpal endings. The PV-IR neurons with their widely branched, synaptophysin-rich, intradentinal beaded endings are good candidates for endodontic non-nociceptive, low threshold, unperceived mechanoreceptors. The complex molar dentinal and pulpal sensory systems were not found in rat incisors. PMID- 29035723 TI - Raloxifene reduces the risk of local alveolar bone destruction in a mouse model of periodontitis combined with systemic postmenopausal osteoporosis. AB - OBJECTIVE: Periodontitis is characterized by local inflammation leading to tooth loss and severe destruction of alveolar bone. Raloxifene is a selective estrogen receptor modulator (SERM) that halts estrogen deficiency-induced systemic bone loss in postmenopausal osteoporosis without the side effects of cancer in breast and uterus. In this study, we examined the effects of raloxifene on alveolar bone mass in a mouse model with estrogen deficiency-induced periodontitis. METHODS: Periodontitis was induced by the injection of lipopolysaccharide (LPS) into the lower gingiva in ovariectomized (OVX) mice, and the alveolar bone and femur bone mineral density (BMD) were analyzed by dual-energy X-ray absorptiometry. To explore the direct osteoclast inhibitory effect of raloxifene, a co-culture system for osteoclast formation and organ culture of alveolar bone was established. RESULTS: When OVX mice were treated with raloxifene, the bone loss in both alveolar bone and femur were abrogated. Interleukin 1 and/or LPS stimulated the osteoclast formation and bone-resorbing activity; however, raloxifene did not show any inhibitory effect on the osteoclast formation or function. In vivo local injection of raloxifene also did not prevent bone resorption in a mouse model of periodontitis. However, the systemic treatment of raloxifene using a mini-osmotic pump did prevent the loss of BMD of alveolar bone induced by LPS. CONCLUSION: These results suggest that the SERM raloxifene systemically maintain alveolar bone mass in a mouse model of periodontitis with osteoporosis. Increasing the alveolar bone mass by SERMs treatment in patients with postmenopausal osteoporosis may be a useful approach to preventing the destruction of alveolar bone in late-onset periodontitis. PMID- 29035724 TI - Factors associated with post-stroke suicidal death. AB - BACKGROUND AND PURPOSE: The aim of this study was to estimate the relative risk of suicidal death compared to the general population and to identify risk factors for suicidal death among stroke patients. METHODS: Our sample consisted of 7175 patients who were diagnosed with stroke and admitted at Asan Medical Center from January 2005 to December 2012. Information on suicidal death was obtained from the database of the Korean National Statistical Office. The standardized mortality ratio (SMR) for post-stroke suicide was estimated. Additionally, we conducted a 1:6 case-control study using patients who did not commit suicide. RESULTS: Thirty patients committed suicidal death, with the mean time interval between hospital admission and suicide being 1.9 +/- 1.8 years. The SMR for suicide was 2.14 (95% confidence interval [CI], 1.44-3.05). Case-control analysis revealed that diabetes mellitus, depression, and large ischemic lesions in the subcortex and brainstem were significantly associated with suicidal death. CONCLUSIONS: The risk of suicidal death is approximately 2 times higher than that in the general population. Depression, diabetes, and large lesions in specific locations should be considered in the implementation of suicide prevention strategies in stroke patients. PMID- 29035725 TI - Alterations to Juvenile Zebrafish (Danio rerio) Swim Performance after Acute Embryonic Exposure to Sub-lethal Exposures of Hydraulic Fracturing Flowback and Produced Water. AB - Hydraulic fracturing flowback and produced water (FPW) is a wastewater produced during fracturing activities in an operating well which is hyper saline and chemically heterogeneous in nature, containing both anthropogenic and petrogenic chemicals. Determination of FPW associated toxicity to embryonic fish is limited, while investigation into how embryonic exposures may affect later life stages is not yet studied. Zebrafish embryos (24hrs post fertilization) were acutely exposed to 2.5% and 5% FPW fractions for either 24 or 48hrs and returned to freshwater. After either 24 or 48h exposures, embryos were examined for expression of 3 hypoxia related genes. Erythropoietin (epoa) but not hypoxia inducible factor (hif1aa) nor hemoglobin -beta chain (hbbe1.1) was up-regulated after either 24 or 48h FPW exposure. Surviving embryos were placed in freshwater and grown to a juvenile stage (60days post fertilization). Previously exposed zebrafish were analyzed for both swim performance (Ucrit and Umax) and aerobic capacity. Fish exposed to both sediment containing (FPW-S) or sediment free (FPW SF) FPW displayed significantly reduced aerobic scope and Ucrit/Umax values compared to control conditions. Our results collectively suggest that organics present in our FPW sample may be responsible for sub-lethal fitness and metabolic responses. We provide evidence supporting the theory that the cardio-respiratory system is impacted by FPW exposure. This is the first known research associating embryonic FPW exposures to sub-lethal performance related responses in later life fish stages. PMID- 29035726 TI - Nonionic surfactants enhanced enzymatic hydrolysis of cellulose by reducing cellulase deactivation caused by shear force and air-liquid interface. AB - Effects of nonionic surfactants on enzymatic hydrolysis of Avicel at different agitation rates and solid loadings and the mechanism were studied. Nonionic surfactants couldn't improve the enzymatic hydrolysis efficiency at 0 and 100rpm but could enhance the enzymatic hydrolysis significantly at high agitation rate (200 and 250rpm). Cellulase was easily deactivated at high agitation rate and the addition of nonionic surfactants can protect against the shear-induced deactivation, especially when the cellulase concentration was low. When 25mg protein/L of cellulase solution was incubated at 200rpm for 72h, the enzyme activity increased from 36.0% to 89.5% by adding PEG4600. Moreover nonionic surfactants can compete with enzyme in air-liquid interface and reduce the amount of enzyme exposed in the air-liquid interface. The mechanism was proposed that nonionic surfactants could enhance the enzymatic hydrolysis of Avicel by reducing the cellulase deactivation caused by shear force and air-liquid interface. PMID- 29035727 TI - Co-pyrolysis characteristics and kinetic analysis of organic food waste and plastic. AB - In this work, typical organic food waste (soybean protein (SP)) and typical chlorine enriched plastic waste (polyvinyl chloride (PVC)) were chosen as principal MSW components and their interaction during co-pyrolysis was investigated. Results indicate that the interaction accelerated the reaction during co-pyrolysis. The activation energies needed were 2-13% lower for the decomposition of mixture compared with linear calculation while the maximum reaction rates were 12-16% higher than calculation. In the fixed-bed experiments, interaction was observed to reduce the yield of tar by 2-69% and promote the yield of char by 13-39% compared with linear calculation. In addition, 2-6 times more heavy components and 61-93% less nitrogen-containing components were formed for tar derived from mixtures. PMID- 29035728 TI - Engineering Pediococcus acidilactici with xylose assimilation pathway for high titer cellulosic l-lactic acid fermentation. AB - Xylose-assimilating pathways were constructed in the parental Pediococcus acidilactici strain and evolutionarily adapted to yield a highly stable co fermentation strain for l-lactic acid production. The phosphoketolase pathway (PK) was blocked for reduction of acetic acid generation by disrupting phosphoketolase (pkt) gene. The pentose phosphate pathway (PPP) was reconstructed for xylose assimilation by integrating four heterologous genes encoding transketolase (tkt), transaldolase (tal), xylose isomerase (xylA) and xylulokinase (xylB) into the P. acidilactici chromosome. The xylose-assimilating ability of the constructed strain was significantly improved by long term adaptive evolution. The engineered strain was applied to the simultaneous saccharification and co-fermentation (SSCF) under high solids loading of wheat straw. The l-lactic acid titer, productivity and xylose conversion reached the record high at 130.8+/-1.6g/L, 1.82+/-0.0g/L/h, and 94.9+/-0.0%, respectively. This study provided an important strain and process prototype for production of high titer cellulosic l-lactic acid. PMID- 29035729 TI - Pre-clinical in vitro infection models. AB - Given the current magnitude of the problem of antimicrobial resistance, particularly in the hospital setting, getting new agents to patients at the right dose and schedule is incredibly important. In vitro systems such as the 1 compartment model and the hollow fiber infection model (HFIM) can provide valuable information that allows rational decisions to be made which will drive the best choices of dose and schedule. Studies identifying the dynamically-linked index (dose fractionation studies) and the size of the index to obtain a specific amount of bacterial kill can be performed in both systems. Studies to examine dosing regimens that will help suppress resistance emergence are best done in the HFIM. PMID- 29035730 TI - Features of mood associated with high body weight in females with fibromyalgia. AB - BACKGROUND: Fibromyalgia (FM) is a common syndrome whose main characteristic is chronic widespread musculoskeletal pain, the severity of which is frequently worsened by concomitant obesity. Major depression (MD), particularly as part of a bipolar spectrum disorder (BSD), is associated with both obesity and FM. OBJECTIVE: To evaluate the relationship between lifetime MD, hypomanic symptoms and the body mass index (BMI) in patients with FM. METHOD: Of the 115 patients originally screened, 87 women with FM finally entered the study. Forty-nine patients (57%) had a lifetime diagnosis of MD, assessed by a structured clinical interview based on DSM-IV criteria, and four of them (4.6%) had a current MD episode. Lifetime hypomanic symptoms were measured by means of the self-rated Hypomania Checklist. According to the international criteria for BMI, FM patients were classified as under/normal-weight (61%), overweight (30%) and obese (9%). RESULTS: 62 patients (71.2%) with FM had a bipolar spectrum disorder (BSD). Thirty (48.3%) of them met criteria for bipolar II disorder, 32 (51,6%) for bipolar disorder NOS (18 FM patients with MD associated to sub-syndromal hypomanic syndrome and 14 with hypomanic syndrome without MD). No patient had a bipolar I disorder. Only one patient met the criteria for a major depressive disorder (MDD). There was no significant difference in mean BMI between the patients with and without a lifetime diagnosis of MD, but there was a positive association between the level of hypomanic symptoms and BMI values (p<0.009). When hypomania was considered categorically as hypomanic syndrome there was no significant effect on BMI. CONCLUSIONS: Our finding adds to previous evidence indicating that hypomanic symptoms are a central feature of FM. In the case of the early identification of high-level hypomanic symptoms, body weight should be closely monitored in order to prevent obesity and its detrimental impact on females with FM. PMID- 29035732 TI - Development and validation of an automated delirium risk assessment system (Auto DelRAS) implemented in the electronic health record system. AB - BACKGROUND: A key component of the delirium management is prevention and early detection. OBJECTIVE: To develop an automated delirium risk assessment system (Auto-DelRAS) that automatically alerts health care providers of an intensive care unit (ICU) patient's delirium risk based only on data collected in an electronic health record (EHR) system, and to evaluate the clinical validity of this system. DESIGN: Cohort and system development designs were used. SETTING: Medical and surgical ICUs in two university hospitals in Seoul, Korea. PARTICIPANTS: A total of 3284 patients for the development of Auto-DelRAS, 325 for external validation, 694 for validation after clinical applications. METHODS: The 4211 data items were extracted from the EHR system and delirium was measured using CAM-ICU (Confusion Assessment Method for Intensive Care Unit). The potential predictors were selected and a logistic regression model was established to create a delirium risk scoring algorithm to construct the Auto DelRAS. The Auto-DelRAS was evaluated at three months and one year after its application to clinical practice to establish the predictive validity of the system. RESULTS: Eleven predictors were finally included in the logistic regression model. The results of the Auto-DelRAS risk assessment were shown as high/moderate/low risk on a Kardex screen. The predictive validity, analyzed after the clinical application of Auto-DelRAS after one year, showed a sensitivity of 0.88, specificity of 0.72, positive predictive value of 0.53, negative predictive value of 0.94, and a Youden index of 0.59. CONCLUSIONS: A relatively high level of predictive validity was maintained with the Auto-DelRAS system, even one year after it was applied to clinical practice. PMID- 29035731 TI - Postoperative Adjuvant Sorafenib or Sunitinib for Nonmetastatic Renal Cell Carcinoma with Venous Tumor Thrombus: a Prospective Cohort Study. AB - PURPOSE: To evaluate the efficacy and safety of antiangiogenic agents (sorafenib and sunitinib) as postoperative adjuvant therapy in patients with nonmetastatic renal cell carcinoma (RCC) and venous tumor thrombus (VTT). MATERIAL AND METHODS: From March 2006 to January 2016, 147 patients who met the inclusion criteria were enrolled; 27 patients received sorafenib, and 17 patients received sunitinib. After radical nephrectomy and thrombectomy, the duration of maintenance targeted medication treatment was approximately 1 year. The primary objective was to compare disease-free survival (DFS) between each experimental group and control. Secondary end points included overall survival (OS) and toxic effects. RESULTS: The three groups were well balanced in terms of age, body mass index, gender, performance status, medical history, American Society of Anesthesiologists score, surgical approach, and tumor side and size. However, more patients receiving adjuvant therapy had inferior vena cava tumor thrombus. DFS and OS did not differ significantly between groups (P=.459 and .871, respectively). After adjusting for potential confounding factors, results of multivariate analysis proved that postoperative adjuvant therapy was not an independent factor for predicting DFS and OS (P>.05 for both). The subgroup analyses for inferior vena cava tumor thrombus found similar results. The common adverse events were hand-foot syndrome, diarrhea, fatigue, and neutropenia. The adverse effects were mild in both groups, and the incidence was not significantly different between sorafenib and sunitinib. CONCLUSIONS: Adjuvant treatment postoperatively with sorafenib or sunitinib showed no survival benefit relative to control for patients with nonmetastatic RCC and VTT in a prospective cohort study. PMID- 29035733 TI - How does parental cancer affect adolescent and young adult offspring? A systematic review. AB - OBJECTIVES: To i) identify and synthesise evidence published since 2007 regarding the impact of parental cancer on adolescent and young adult offspring, ii) identify methodological and evidence gaps addressed during this period and iii) highlight those requiring further attention. DESIGN: A systematic review and thematic synthesis of peer reviewed literature regarding the impact of parental cancer upon AYA offspring. DATA SOURCES: Online searches of CINAHL, Embase, Medline, PsychInfo and Scopus databases were conducted. Reference lists of included articles were screened and additional searches by prominent authors were performed. REVIEW METHODS: Study selection, data extraction and quality analysis was undertaken by three independent researchers. Extracted study data was iteratively reviewed and discussed to achieve consensus regarding thematic synthesis of included studies. RESULTS: Database and hand-searching yielded 1730 articles, 54 of which were included in the final synthesis. Included studies are discussed with respect to the following themes: i) study design and quality; ii) measurement and sampling; iii) positive and negative aspects of parental cancer; iv) needs; v) communication and information; vi) coping strategies; vii) interventions; and viii) family functioning and other predictors. Twenty-nine studies reported negative impacts related to parental cancer, while eight identified positive outcomes related to post-traumatic growth. Five returned null or mixed findings. Unmet needs were frequently explored and a new validated measure developed. Communication and information were particularly important for offspring, though these needs were often unmet and parents wanted guidance regarding discussions with their children. Offspring may adopt a variety of coping strategies, some of which appear maladaptive, and may cycle between different approaches. Few evaluations of interventions were identified, and further work in this area is needed. Further evidence has emerged that poorer family functioning and other family and illness-related factors predict worse psychosocial outcomes for offspring, however evidence for other predictors such as age and gender remain mixed. CONCLUSIONS: Additional evidence for the negative psychosocial impact of parental cancer on adolescent and young adult offspring, their needs, and factors predicting psychosocial outcomes has emerged in the last decade. However, substantial gaps and methodological issues remain and evidence for the development, efficacy or implementation of interventions for this population is very limited. There is also a clear need for greater focus on bereaved and young adult offspring and those from non-western cultural groups, who remain under-represented in research conducted to date. PMID- 29035734 TI - Comparison of constitutive and thiabendazole-induced expression of five cytochrome P450 genes in fourth-stage larvae of Haemonchus contortus isolates with different drug susceptibility identifies one gene with high constitutive expression in a multi-resistant isolate. AB - Benzimidazoles (BZs) remain amongst the most widely used anthelmintic drug classes against gastro-intestinal nematode infections, although their efficacy is increasingly compromised by resistance. The primary underlying mechanisms for BZ resistance are single-nucleotide polymorphisms (SNPs) in the isotype 1 beta tubulin gene causing the substitutions F167Y, E198A or F200Y. However, resistance is believed to be multi-genic and previous studies have shown that isolates carrying 90-100% F200Y can vary considerably in their resistance level in the egg hatch assay (EHA). Cytochrome P450 monooxygenases (CYPs) are associated with drug resistance in mammals and arthropods and have been considered as mediators of anthelmintic resistance. In Caenorhabditis elegans, several members of the CYP34/35 and CYP31 families are BZ and/or xenobiotic inducible and thiabendazole (TBZ) is metabolised by CYP35D1. Here, expression of all 5 CYPs closely related to the C. elegans CYP34/35 and CYP31 families was investigated in fourth-stage larvae of two susceptible and three BZ-resistant Haemonchus contortus isolates following in vitro exposure to TBZ for 3 and 6 h using real-time RT-PCR. The resistance status of all isolates was determined using EHAs and quantification of resistance-associated beta-tubulin SNPs using pyrosequencing. While none of the CYPs was TBZ inducible, constitutive expression of CYP34/35 family member HCOI100383400 was significantly 2.4-3.7-fold higher in the multi-drug resistant WR isolate with the strongest BZ resistance phenotype compared to susceptible and intermediate-level BZ-resistant isolates. Although this increase is only moderate, HCOI100383400 might still be involved in high-level BZ resistance by further decreasing susceptibility in isolates already carrying 100% of a beta tubulin SNP causing BZ resistance. Lower transcript levels were observed for all CYPs in the intermediately resistant IRE isolate in comparison to the susceptible HcH isolate, which, except for CYP HCOI01579500, were statistically non significant. This suggests that none of the investigated CYPs may contribute to protection against TBZ in this particular isolate. PMID- 29035736 TI - Mechanotransduction of human pluripotent stem cells cultivated on tunable cell derived extracellular matrix. AB - Cell-derived matrices (CDM) are becoming an attractive alternative to conventional biological scaffolding platforms due to its unique ability to closely recapitulate a native extracellular matrix (ECM) de novo. Although cell substrate interactions are recognized to be principal in regulating stem cell behavior, very few studies have documented the acclimation of human pluripotent stem cells (hPSCs) on pristine and altered cell-derived matrices. Here, we investigate crosslink-induced mechanotransduction of hPSCs cultivated on decellularized fibroblast-derived matrices (FDM) to explore cell adhesion, growth, migration, and pluripotency in various biological landscapes. The results showed either substrate-mediated induction or inhibition of the Epithelial Mesenchymal-Transition (EMT) program, strongly suggesting that FDM stiffness can be a dominant factor in mediating hPSC plasticity. We further propose an optimal FDM substratum intended for long-term hPSC cultivation in a feeder-free niche like microenvironment. This study carries significant implications for hPSC cultivation and encourages more in-depth studies towards the fundamentals of hPSC CDM interactions. PMID- 29035735 TI - Transcriptome profiling identifies genes/pathways associated with experimental resistance to paromomycin in Leishmania donovani. AB - Widespread resistance towards antimony and reports of relapses following miltefosine treatment has severely affected the management of visceral leishmaniasis (VL) in the Indian subcontinent. Paromomycin (PMM), an aminoglycoside antibiotic, has been licensed for VL treatment in India in 2007. Although its use is still restricted in the field, unraveling the molecular mechanism of resistance towards PMM is the key to preserve the drug. In this study, PMM resistant lines were selected up to 100 MUM of PMM in three distinct field isolates of Leishmania donovani at promastigote stage. The resistance induced at promastigote level was also evident in amastigotes which showed 6 fold decreases in PMM susceptibility. Comparative transcriptome profiling of PMM resistant (PMM-R) and the corresponding PMM sensitive (PMM-S) parasites revealed modulated expression of 500 genes (1.5 fold cut off) in PMM-R parasites. Selected genes were validated for their modulated expression by quantitative real-time PCR. Functional classification and pathway analysis of modulated genes indicated probable adaptations in drug resistant lines which included a) reduced oxidative phosphorylation; b) increased glycosomal succinate fermentation and substrate level phosphorylation; c) dependency on lipids and amino acids for energy generation; d) reduced DNA synthesis and increased DNA damage repair and e) decreased protein synthesis and degradation. Interestingly, PMM-R parasites showed a marked increase in PMM susceptibility in presence of verapamil and amlodipine, antagonists of Ca2+ channel that are also modulators of ABC transporters. Moreover, infection of macrophages by PMM-R parasites led to modulated nitric oxide (NO) levels while reactive oxygen species (ROS) level remained unaltered. The present study highlights the putative mechanisms of PMM resistance in Leishmania. PMID- 29035737 TI - Rethinking liquid biopsy: Microfluidic assays for mobile tumor cells in human body fluids. AB - Traditionally, liquid biopsy is a blood test involving the harvesting of tumor materials from peripheral blood. Tumor cells from non-blood body fluids have always been clinically available in cytological examinations but limited for use in differential diagnosis due to the low sensitivity of conventional cytopathology. With the recent significant progress in microfluidic and downstream molecular technologies, liquid biopsies have now evolved to include harvesting tumor cells and DNA fragments in all kinds of non-blood body fluids. This expansion into general body fluids presages the notion that liquid biopsy could soon be used in competition, as well as, in complementarity with tissue biopsy. Preliminary research of fluid-harvested tumor materials to spot early stage tumors, monitor disease progression for metastasis and recurrence, and detect chemoresistance have been reported. To reflect the propagation of tumor cells in non-blood body fluids, we introduced the term Mobile Tumor Cells (MTCs), in lieu of the widely accepted term of circulating tumor cells (CTCs) resident in the bloodstream. Our review starts with a discussion on the clinical significance of MTCs, followed by a presentation of microfluidic techniques for MTC capture and various strategies for their identification. Hopefully, the phenotypic and genomic data acquired from harvested MTCs can be used to guide and improve cancer treatment decisions. PMID- 29035738 TI - Thrombin-activatable fluorescent peptide incorporated gold nanoparticles for dual optical/computed tomography thrombus imaging. AB - Thrombosis is an important pathophysiologic phenomenon in various cardiovascular diseases, which can lead to oxygen deprivation and infarction of tissues by generation of a thrombus. Thus, direct thrombus imaging can provide beneficial in diagnosis and therapy of thrombosis. Herein, we developed thrombin-activatable fluorescent peptide (TAP) incorporated silica-coated gold nanoparticles (TAP SiO2@AuNPs) for direct imaging of thrombus by dual near-infrared fluorescence (NIRF) and micro-computed tomography (micro-CT) imaging, wherein TAP molecules were used as targeted thrombin-activatable peptide probes for thrombin-specific NIRF imaging. The freshly prepared TAP-SiO2@AuNPs had an average diameter of 39.8 +/- 2.55 nm and they showed the quenched NIRF signal in aqueous condition, due to the excellent quenching effect of TAP molecules on the silica-gold nanoparticle surface. However, 30.31-fold higher NIRF intensity was rapidly recovered in the presence of thrombin in vitro, due to the thrombin-specific cleavage of quenched TAP molecules on the gold particle surface. Furthermore, TAP-SiO2@AuNPs were successfully accumulated in thrombus by their particle size-dependent capturing property, and they presented a potential X-ray absorption property in a dose dependent manner. Finally, thrombotic lesion was clearly distinguished from peripheral tissues by dual NIRF/micro-CT imaging after intravenous injection of TAP-SiO2@AuNPs in the in situ thrombotic mouse model, simultaneously. This study showed that thrombin-activatable fluorescent peptide incorporated silica-coated gold nanoparticles can be potentially used as a dual imaging probe for direct thrombus imaging and therapy in clinical applications. PMID- 29035739 TI - Physical oncology: New targets for nanomedicine. AB - Physical oncology is an emerging paradigm which recognizes tissue mechanics, per se, as an active modulator of tumorigenesis, treatment resistance and clinical outcome, mediated by mechanosignaling pathways, matrix remodeling and physical barriers to drugs. The tumor microenvironment displays abnormal physical properties in comparison to healthy tissue which contribute to cancer progression and resistance to current treatments. Physical aberrancies comprise the chaotic organization of tumor vasculature, an increased interstitial pressure, an increased solid stress, hypoxia, an abundant extracellular matrix and a progressive stiffening of solid tumors. The physical barriers in tumors are of critical importance, as tissue mechanics compromises drug delivery, reduces immune cell infiltration and promotes disease aggressiveness. All these physical hallmarks of cancer, although not fully understood, are inspiring new anticancer strategies aiming to target and normalize the physical anomalies of solid tumors, particularly in the field of nanomedicine. Here we summarize the recent paradigm shift of physical oncology and review some of the proposed strategies using nanomaterials to tackle the tumor microenvironment and its aberrant physical properties. Nanomedicine might harness the features of the tumor microenvironment in order to improve nanoparticle and drug delivery, or propose nano-agents that can be activated on demand to achieve a tailored spatio-temporal modulation of the tumor microenvironment, reduce tumor pressure and stiffness and alleviate the resistance to current treatments. PMID- 29035740 TI - Memory Age Identity as a predictor of cognitive function in the elderly: A 2-year follow-up study. AB - BACKGROUND: There is a growing interest in finding psychosocial predictors related to cognitive function. In our previous research, we conducted a cross sectional study on memory age identity (MAI) and found that MAI might be associated with objective cognitive performance in non-cognitively impaired elderly. A longitudinal study was conducted to better understand the importance of MAI as a psychosocial predictor related to objective cognitive function. METHODS: Data obtained from 1345 Korean subjects aged 60 years and above were analyzed. During the two-year follow-up, subjective memory age was assessed on three occasions using the following question: How old do you feel based on your memory? Discrepancy between subjective memory age and chronological age was then calculated. We defined this value as 'memory age identity (MAI)'. A generalized estimating equation (GEE) was then obtained to demonstrate the relationship between MAI and Korean version-Mini Mental State Examination (K-MMSE) score over the 2 years of study. RESULTS: MAI was found to significantly (beta=-0.03, p< 0.0001) predict objective cognitive performance in the non-cognitively impaired elderly. CONCLUSION: MAI may be a potential psychosocial predictor related to objective cognitive performance in the non-cognitively impaired elderly. PMID- 29035741 TI - Association between psychological distress, subjective cognitive complaints and objective neuropsychological functioning in brain tumor patients. AB - OBJECTIVES: Psychological distress and cognitive impairment are common complications in patients with brain tumors that are associated with poor quality of life and worse prognosis. This pilot study aimed to evaluate the associations between psychological distress, subjective cognitive complaints and baseline neuropsychological performance of brain tumor patients before neurosurgery. PATIENTS AND METHODS: Sixty-two patients with various brain tumors referred for routine neuropsychological assessment 2-3days before neurosurgery participated in the study. Short neuropsychological assessment battery was used to evaluate attention and executive functions, memory and verbal fluency. Presence of cognitive complaints was evaluated during neuropsychological interview using standardized symptoms checklist. Level of psychological distress was assessed using the Hospital Anxiety and Depression Scale. RESULTS: Various attention and executive function problems were reported by 13-58% patients; memory problems by 8-63%; language problems by 10-58% of patients. 36-57% of patients scored below 5th percentile on objective memory measures; 32-45% on attention measures and 11 27% on verbal fluency. However, correlation between objective neuropsychological findings and subjective cognitive complaints was weak, ranging from 0.0 to 0.3. 45% of patients met criteria for increased psychological distress. Psychological distress was associated with subjective cognitive complaints but failed to predict objective neuropsychological findings. Brain tumor histological diagnosis, side and location were not related to neuropsychological functioning. CONCLUSION: Cognitive impairment and psychological distress are highly prevalent in BT patients before neurosurgery. Although depression and distress may adversely impact quality of life and prognosis of BT patients, our current findings do not confirm that distress has strong negative impact on objective preoperative cognitive functioning. However, it is related to worse subjective evaluation of one's cognitive abilities. Therefore, objective neuropsychological assessment of cognitive functions is highly recommended despite concern. PMID- 29035742 TI - How does solvation in the cell affect protein folding and binding? AB - The cellular environment is highly diverse and capable of rapid changes in solute composition and concentrations. Decades of protein studies have highlighted their sensitivity to solute environment, yet these studies were rarely performed in situ. Recently, new techniques capable of monitoring proteins in their natural context within a live cell have emerged. A recurring theme of these investigations is the importance of the often-neglected cellular solvation environment to protein function. An emerging consensus is that protein processes in the cell are affected by a combination of steric and non-steric interactions with this solution. Here we explain how protein surface area and volume changes control these two interaction types, and give recent examples that highlight how even mild environmental changes can alter cellular processes. PMID- 29035743 TI - Transmission of henipaviruses. AB - The genus Henipavirus has expanded rapidly in geographic range, number of species, and host range. Hendra and Nipah virus are two henipaviruses known to cause severe disease in humans with a high case-fatality rate. Pteropid spp. bats are the natural reservoir of Hendra and Nipah virus. From these bats, virus can be transmitted to an amplifying host, horses and pigs, and from these hosts to humans, or the virus can be transmitted directly to humans. Although the main route of shedding varies between host species, close contact is required for transmission in all hosts. Understanding the transmission routes of Hendra and Nipah virus in their respective hosts is essential for devising strategies to block zoonotic transmission. PMID- 29035744 TI - A systematic review of instrumental variable analyses using geographic region as an instrument. AB - BACKGROUND: Instrumental variables analysis is a methodology to mitigate the effects of measured and unmeasured confounding in observational studies of treatment effects. Geographic area is increasingly used as an instrument. METHODS: We conducted a literature review to determine the properties of geographic area in studies of cancer treatments. We identified cancer studies performed in the United States which incorporated instrumental variable analysis with area-wide treatment rate within a geographic region as the instrument. We assessed the degree of treatment variability between geographic regions, assessed balance of measured confounders afforded by geographic area and compared the results of instrumental variable analysis to those of multivariable methods. RESULTS: Geographic region as an instrument was relatively common, with 22 eligible studies identified, many of which were published in high-impact journals. Treatment rates did not vary greatly by geographic region. Covariates were not balanced by the instrument in the majority of studies. Eight out of eleven studies found statistically significant effects of treatment on multivariable analysis but not for instrumental variables, with the central estimates of the instrumental variables analysis generally being closer to the null. CONCLUSIONS: We recommend caution and an investigation of IV assumptions when considering the use of geographic region as an instrument in observational studies of cancer treatments. The value of geographic region as an instrument should be critically evaluated in other areas of medicine. PMID- 29035745 TI - Bio-functionalization of grade V titanium alloy with type I human collagen for enhancing and promoting human periodontal fibroblast cell adhesion - an in-vitro study. AB - Surface modification of medical grade V titanium alloy (Ti-6Al-4V) with biomolecules is an important and vital step for tailoring it for various biomedical applications. Present study investigates theinfluence of type I human collagen (T1HC) bio-conjugation through a three stage process. Polished grade V titanium alloy discs were functionalizedwith free OH group by means of controlled heat and alkali treatment followed by coating of 3-aminopropyltriethoxy (APTES) silane couplingagent. T1HC were bio-conjugated through 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide hydrochloride N-hydroxysuccinimide (EDCNHS)coupling reaction. At each stage, grade V titanium alloy surfaces were characterized by atomic force microscopy (AFM), scanning electronmicroscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Xrayphotoelectron spectroscopy (XPS). FTIR and XPS studies confirms thecovalent attachment of APTES with titanium alloy surface while terminalamine groups of APTES remained free for further attachment of T1HCthrough covalent bond. Aqueous stability of bio-conjugated titanium discsat various pH and time intervals (i.e. at pH of 5.5, 6.8 and 8.0 at timeinterval of 27 and 48h) confirmed the stability of T1HC bioconjugated collagen on titanium surface. Further human periodontalfibroblast cell line (HPdlF) culture revealed enhanced adhesion on theT1HC bio-conjugated surface compared to the polystyrene and polishedgrade V titanium alloy surfaces. PMID- 29035746 TI - The exploration of endocytic mechanisms of PLA-PEG nanoparticles prepared by coaxialtri-capillary electrospray-template removal method. AB - The nano-sized poly(lactic acid)-poly(ethylene glycol) (PLA-PEG) particles with core-shell structure were efficiently prepared by using coaxial tri-capillary electrospray-template removal method. The cellular uptake mechanism, intracellular distribution and exocytosis in A549 cell model of electrosprayed PLA-PEG nanoparticles were systemically studied. The drug release behavior of electrosprayed PLA-PEG nanoparticles were also investigated. Our results showed that PLA-PEG nanoparticles can be endocytosed quickly by A549 cells. The cellular uptake of PLA-PEG nanoparticles was an energy dependent endocytosis process. Caveolae-mediated endocytosis was only one of endocytosis pathways in A549 cells for PLA-PEG nanoparticles, while clathrin mediated endocytosis was not involved in the endocytosis process. The endocytosed PLA-PEG nanoparticles enriched in the head of A549 cells and only a small amount of them was transported into lysosome after 24h incubation. These findings provided insights into the application of electrosprayed PLA-PEG nanoparticles in nano drug delivery field. PMID- 29035748 TI - Body dissatisfaction predicts poor behavioral weight loss treatment adherence in overweight Mexican American women. AB - Poor adherence poses a major barrier to the success of behavioral weight loss (BWL) programs, particularly for overweight Mexican American women. Given the high prevalence and costs of overweight/obesity, factors that contribute to attendance and adherence problems should be identified, especially in ethnic minority populations. The current study examined the role of pre-treatment body dissatisfaction and depression in predicting attendance and adherence in a BWL intervention. Ninety-nine overweight/obese Mexican American women enrolled in the intervention and completed baseline measures. Eighty-one of the women attended at least one treatment session and provided measures of dietary and physical activity adherence. Simultaneous linear regression analyses suggested that although higher levels of body dissatisfaction and depression each played unique roles in predicting poorer attendance, only body dissatisfaction predicted adherence. Specifically, higher body dissatisfaction predicted poorer treatment adherence. Findings highlight the importance of addressing body dissatisfaction early in BWL treatment to increase attendance and adherence. PMID- 29035747 TI - Studies on the adsorption and desorption of mitoxantrone to lauric acid/albumin coated iron oxide nanoparticles. AB - A rational use of superparamagnetic iron oxide nanoparticles (SPIONs) in drug delivery, diagnostics, and other biomedical applications requires deep understanding of the molecular drug adsorption/desorption mechanisms for proper design of new pharmaceutical formulations. The adsorption and desorption of the cytostatic Mitoxantrone (MTO) to lauric acid-albumin hybrid coated particles SPIONs (SEONLA-HSA) was studied by Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), surface titration, release experiments and small-angle neutron and X-ray scattering. Such MTO-loaded nanoparticles have shown very promising results in in vivo animal models before, while the exact binding mechanism of the drug was unknown. SEONLA-HSA formulations have shown better stability under drug loading in comparison with uncoated nanoparticle and sustainable drug release to compare with protein solution. Adsorption of MTO to SEONLA-HSA leads to decreasing of absolute value of zeta potential and repulsive interaction among particles, which points to the location of separate molecules of MTO on the outer surface of LA-HSA shell. PMID- 29035749 TI - Chemical remodeling cell surface glycans for immunotargeting of tumor cells. AB - Recruitment of human endogenous antibodies to target and eliminate tumor cells is a promising therapeutic strategy in the biomedical field. Current antibody recruiting molecules are typically bi-functional agents that utilize cell-surface receptor binding property for targeting. This approach has intrinsic limitations due to the heterogeneity of tumor cells and the limited number of receptors on the cell surface. Here we report a targeting strategy based on remodeling of cell surface glycans through metabolic engineering and bioorthogonal chemical ligation. In vitro cultured tumor cells and in vivo xenograft tumors were actively remodeled with rhamnose carbohydrate epitopes, which were capable of recruiting endogenous anti-rhamnose antibodies and activating complement-mediated cell cytotoxicity. This study highlights the therapeutic potential for modulating endogenous immune response through cell-surface glycan engineering. PMID- 29035750 TI - Attention and the sense of agency: A review and some thoughts on the matter. AB - Much is now known about the sense of agency and how it is produced. What is lacking, though, is an understanding of how it relates to other cognitive domains and operations. Here, the relationship between the sense of agency and attention is explored. A review of the literature suggests that attention is involved in the sense of agency in (at least) two key ways. First, agency processing is dependent on attentional resources. Second, attentional enhancement is necessary for extraneous information to have an influence over the sense of agency. These are discussed and some suggestions for future research are offered. PMID- 29035752 TI - Regulation of oxidative stress and mineral nutrient status by selenium in arsenic treated crop plant Oryza sativa. AB - The present study was conducted to examine the impact of selenium (Se) on mineral nutrient status and oxidative stress in crop plant Oryza sativa treated with arsenic (As). Scanning electron microscopy (SEM) coupled with Energy dispersive x ray spectroscopy (EDS) study revealed the morphological deformities in leaf veins along with granular deposition on the leaf surface. The EDS analysis exhibited loss of elements (S, Si, Cl, K, Ca, Fe and Cu) in As(III) treatment in rice roots as compared to untreated root. In the case of As(III) treated shoot, changes in elements content in term of percent atomic weight was K (1.17-0.90%), Cl (1.04 24.75%), Na (0.65-3.52%) and S (0.49-2.52%) when compared with untreated shoot. The result of EDS analysis showed that As limits the concentration of important mineral elements present in the rice root and shoot. Rice plant treated with Se (10uM) and sub lethal dose of As(III) (60uM) showed better growth responses in term of root, shoot length (11.4% and 10.71%, respectively), biomass (11.7%), reduced malonyldialdehyde content (35.14%) and stimulated antioxidant level indicating better As tolerance potential against As. Further, a selenium dependent significant reduction in As accumulation was also observed in root (14.24%) and shoot (23.78%) of rice plant when compared with plant treated with As alone. This study highlights the potential of Se to ameliorate the ecotoxicological risks associated with the As buildup in agricultural land. PMID- 29035753 TI - Toxic inorganic pollutants in foods from agricultural producing areas of Southern Italy: Level and risk assessment. AB - This study focused on the inorganic environmental contaminants in specific food products which form part of the food chain of the population residing in the area of Southern Italy (Gela) where there is a high mortality rate linked to tumor diseases and congenital malformations. Determination of toxic metals was performed by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). The toxicological data for every toxic element has been applied to evaluate the risk for the consumer by calculating the amount of potentially toxic element that would ingest an average of 60kg weight individual adult. The analysis of the investigated samples shows a high level of metal contamination which can be linked both to the polluted water and air. The obtained results give us an idea about the agricultural products contamination and possible exposure of local people through the food chain. PMID- 29035751 TI - Intercellular transfer of pathogenic alpha-synuclein by extracellular vesicles is induced by the lipid peroxidation product 4-hydroxynonenal. AB - Parkinson's disease (PD) is characterized by accumulations of toxic alpha synuclein aggregates in vulnerable neuronal populations in the brainstem, midbrain, and cerebral cortex. Recent findings suggest that alpha-synuclein pathology can be propagated transneuronally, but the underlying molecular mechanisms are unknown. Advances in the genetics of rare early-onset familial PD indicate that increased production and/or reduced autophagic clearance of alpha synuclein can cause PD. The cause of the most common late-onset PD is unclear, but may involve metabolic compromise and oxidative stress upstream of alpha synuclein accumulation. As evidence, the lipid peroxidation product 4 hydroxynonenal (HNE) is elevated in the brain during normal aging and moreso in brain regions afflicted with alpha-synuclein pathology. Here, we report that HNE increases aggregation of endogenous alpha-synuclein in primary neurons and triggers the secretion of extracellular vesicles (EVs) containing cytotoxic oligomeric alpha-synuclein species. EVs released from HNE-treated neurons are internalized by healthy neurons which as a consequence degenerate. Levels of endogenously generated HNE are elevated in cultured cells overexpressing human alpha-synuclein, and EVs released from those cells are toxic to neurons. The EV associated alpha-synuclein is located both inside the vesicles and on their surface, where it plays a role in EV internalization by neurons. On internalization, EVs harboring pathogenic alpha-synuclein are transported both anterogradely and retrogradely within axons. Focal injection of EVs containing alpha-synuclein into the striatum of wild-type mice results in spread of synuclein pathology to anatomically connected brain regions. Our findings suggest a scenario for late-onset PD in which lipid peroxidation promotes intracellular accumulation and then extrusion of EVs containing toxic alpha-synuclein species; the EVs are then internalized by adjacent neurons, so propagating the neurodegenerative process. PMID- 29035754 TI - Regulation of autophagy factors by oxidative stress and cardiac enzymes imbalance during arsenic or/and copper induced cardiotoxicity in Gallus gallus. AB - Basal autophagy has an indispensable role in the functioning and maintenance of cardiac geometry under physiological conditions. Recently, increasing evidence has demonstrated that arsenic (As)/copper (Cu) play important roles in the autophagy of the heart. The current study was to evaluate whether oxidative damage by As or/and Cu was correlated with autophagy through the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway in the heart of birds. Arsenic trioxide (30mg/kg) or/and cupric sulfate (300mg/kg) were administered in a basal diet to male Hy-line chickens (one-day-old) for 12 weeks. The results showed that heart weight/body weight ratio decreased in the As + Cu group only at 4, 8 and 12 weeks. Moreover, we observed that As or/and Cu decreased high-density lipoprotein cholesterol (HDL C) concentrations, increased total cholesterol (T-CHO) concentrations and cardiac enzymes activities in the serum. On the other hand, As or/and Cu significantly reduced the activities of total antioxidant (T-AOC), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px)) along with decreased nonenzymic antioxidant (glutathione (GSH)) concentrations and increased malondialdehyde (MDA) concentrations in the heart. Furthermore, As or/and Cu could induce autophagy in the heart of chickens through decreased mRNA levels of TORC1, TORC2, microtubule associated light chains 3-I (LC3-I) and increased PI3K, AKT1, Beclin1, autophagy associated gene 4B (Atg4B), microtubule associated light chains 3-II (LC3-II), autophagy associated gene 5 (Atg5) and Dynein. Meanwhile, ultrastructural examinations showed that As/Cu could result in the appearance of autolygosomes, autophagic vacuoles and double-membrane structures in the heart. In conclusion, As or/and Cu induced cardiac damage and autophagy via elevating cardiac enzymes activities, inducing oxidative stress and activating the PI3K/AKT/mTORC pathway in heart of chickens. Moreover, As and Cu had a possible synergistic relationship in the heart of chickens. PMID- 29035755 TI - Antibiotic effects on seed germination and root development of tomato (Solanum lycopersicum L.). AB - Antibiotics are emerging pollutants released into the environment through wastewater and manure or effluents from livestock plants. Compared to the wide literature on the effects of antibiotics on the development of drug-resistant bacteria and on the adverse effects on animals and human beings, the effects on plants are less investigated. Here we evaluated the effects of four antibiotics (cloramphenicol: CAP, spiramycin: SPR, spectinomycin: SPT, vancomycin: VAN) belonging to different chemical groups, on seed germination and root development of tomato (Solanum lycopersicum L. cv. San Marzano). Specifically, seed germination and root elongation kinetics, as well as the number of mithotic figures in root apical meristem, were studied in relation to different concentrations of each antibiotic (0, 0.1, 1, 10, 100, 1000mgL-1) for 10 and 7 days, respectively. Results showed that seed germination was not affected, but root development (root elongation kinetics and cell division) was impaired at concentrations from 10mgL-1 (SPT) and 100mgL-1 (CAP) to 1000mgL-1 (SPR and VAN). PMID- 29035756 TI - Lymph node wire localization post-chemotherapy: Towards improving the false negative sentinel lymph node biopsy rate in breast cancer patients. AB - PURPOSE: To evaluate whether the disease status of the pre-neoadjuvant chemotherapy (NAC) core biopsied lymph node (preNACBxLN) in patients with node positive breast cancer corresponds to nodal status of all surgically retrieved lymph nodes (LNs) post-NAC and whether wire localization of this LN is feasible. MATERIALS AND METHODS: HIPPA compliant IRB approved retrospective study including breast cancer patients (a.) with preNACBxLN confirmed metastases, (b.) who received NAC, and (c.) underwent wire localization of the preNACBxLN. Electronic medical records were reviewed. Fisher's exact test was used to compare differences in residual disease post-NAC among breast cancer subtypes. RESULTS: 28 women with node positive breast cancer underwent ultrasound guided wire localization of the preNACBxLN, without complication. There was no evidence of residual nodal disease for 16 patients, with mean 4.4 (median 4) LNs resected. 12 patients had residual nodal metastases, with mean 9.2 (median 7) LNs resected and mean 2.3 (median 2) LNs with tumor involvement. 11 patients had metastases detected within the localized LN. One patient had micrometastasis in a sentinel LN, despite no residual disease in the preNACBxLN. Patients with luminal A/B breast cancer more often had residual nodal metastases (86%) at pathology, as compared to patients with HER2+ (20%) and Triple Negative breast cancer (50%), though not quite achieving statistical significance (p=0.055). CONCLUSION: Ultrasound guided wire localization of the preNACBxLN is feasible and may improve detection of residual tumor in patients post-NAC. PMID- 29035757 TI - Pulmonary hypertension associated with bronchopulmonary dysplasia in preterm infants. AB - Bronchopulmonary dysplasia (BPD) and BPD-associated pulmonary hypertension (BPD PH) are chronic inflammatory cardiopulmonary diseases with devastating short- and long-term consequences for infants born prematurely. The immature lungs of preterm infants are ill-prepared to achieve sufficient gas exchange, thus usually necessitating immediate commencement of respiratory support and oxygen supplementation. These therapies are life-saving, but they exacerbate the tissue damage that is inevitably inflicted on a preterm lung forced to perform gas exchange. Together, air-breathing and necessary therapeutic interventions disrupt normal lung development by aggravating pulmonary inflammation and vascular remodelling, thus frequently precipitating BPD and PH via an incompletely understood pathogenic cascade. BPD and BPD-PH share common risk factors, such as low gestational age at birth, fetal growth restriction and perinatal maternal inflammation; however, these risk factors are not unique to BPD or BPD-PH. Occurring in 17-24% of BPD patients, BPD-PH substantially worsens the morbidity and mortality attributable to BPD alone, thus darkening their outlook; for example, BPD-PH entails a mortality of up to 50%. The absence of a safe and effective therapy for BPD and BPD-PH renders neonatal cardiopulmonary disease an area of urgent unmet medical need. Besides the need to develop new therapeutic strategies, a major challenge for clinicians is the lack of a reliable method for identifying babies at risk of developing BPD and BPD-PH. In addition to discussing current knowledge on pathophysiology, diagnosis and treatment of BPD PH, we highlight emerging biomarkers that could enable clinicians to predict disease-risk and also optimise treatment of BPD-PH in our tiniest patients. PMID- 29035758 TI - Adherence to a Dash-style diet in relation to depression and aggression in adolescent girls. AB - The aim of this study was to assess adherence to the Dietary Approach to Stop Hypertension (DASH) dietary pattern in relation to depression and aggression in adolescent girls. The study was carried out among 580 girls aged between 12 and 18 years of age. DASH scores were determined according to the method of Fung et al. A Persian version of the Beck Depression Inventory and Buss-Perry questionnaire were used for the assessment of depression and aggression. We analysed our data using crude and adjusted models. Adjustments were made for age, energy intake, mother's job status, passive smoking, start of menstruation, parental death, parental divorce, physical activity level and body mass index, using three different models. A high adherence to a Dash-style diet (for individuals in the upper quartile) was associated with a lower odds of depression compared with subjects with lower adherence (those in the lowest quartile) (OR 0.47; 95% CI 0.26-0.84, P-value = 0.009); these associations remained significant after adjustments. However, we did not obtain any significant relationship between a DASH-style diet and aggression. We observed a significant inverse relationship between greater adherence to a DASH diet and lower odds of depression. Further prospective studies are needed to confirm these findings. PMID- 29035760 TI - Engineering nanoreactors using bacterial microcompartment architectures. AB - Bacterial microcompartments (BMCs) are organelles that encapsulate enzymes involved in CO2 fixation or carbon catabolism in a selectively permeable protein shell. Here, we highlight recent advances in the bioengineering of these protein based nanoreactors in heterologous systems, including transfer and expression of BMC gene clusters, the production of template empty shells, and the encapsulation of non-native enzymes. PMID- 29035759 TI - The Beliefs about Voices Questionnaire - Revised: A factor structure from 450 participants. AB - Hallucinated voices are common across psychiatric and non-clinical groups. The predominant cognitive theory about the impact of voices posits that beliefs about voice power ('Omnipotence') and voice intent ('Malevolence'/'Benevolence') play a key role in determining emotional and behavioral reactions. The revised Beliefs about Voices Questionnaire (BAVQ-R) was designed to assess these constructs, together with two styles of responding (Engagement and Resistance). The BAVQ-R is widely used in clinical and research settings, yet it has not received validation of its constructs and factor structure. This study examined the factor structure of the BAVQ-R by combining datasets from five study centers, comprising 450 participants (belief constructs) and 269 participants (response styles), and using confirmatory and exploratory factor analysis. Findings failed to support a three factor belief model, instead showing a two-factor structure ('Persecutory beliefs' combining Omnipotence and Malevolence constructs, and a Benevolent construct). Emotional and behavioral items did not separate. Overall, results showed that (i) a two-factor model of beliefs (Persecutory and Benevolent beliefs) provides a better fit to the data than a three-factor model, and (ii) emotional and behavioral modes of responding items should not be separated. Theoretical implications of this finding are discussed in relation to the research and therapy. PMID- 29035761 TI - Lab-on-a-chip systems for photodynamic therapy investigations. AB - In recent years photodynamic therapy (PDT) has received widespread attention in cancer treatment due to its smaller surgical trauma, better selectivity towards tumor cells, reduced side effects and possibility of repeatable treatment. Since cancer is the second cause of death worldwide, scientists constantly seek for new potential therapeutic agents including nanotechnology-based photosensitizers used in PDT. The new-designed nanostructures must be carefully studied and well characterized what require analytically useful and powerful tools that enable real progress in nanoscience development. This review describes the current status of PDT investigations using microfluidic Lab-on-a-Chip systems, including recent developments of nanoparticle-based PDT agents, their combinations with different drugs, designs and examples of in vitro applications. This review mainly lays emphasis on biological evaluation of FDA approved photosensitizing agents as well as newly designed nanophotosensitizers. It also highlights the analytical performances of various microfluidic Lab-on-a-chip systems for PDT efficacy analysis on 3D culture and discusses microsystems designs in detail. PMID- 29035762 TI - High genetic variability of norovirus leads to diagnostic test challenges. AB - BACKGROUND: It is important to understand the diagnostic accuracy of multiplex panels such as the Luminex xTAG(r) Gastrointestinal Pathogen Panel (GPP) as they are increasingly employed for routine diagnostics worldwide. Recent evaluations in our laboratory identified lower detection rates of norovirus genogroup II (NoV GII) using GPP compared to our laboratory-developed RT-qPCR, Gastroenteritis Virus Panel (GVP). OBJECTIVES: To characterize the cases of discordant NoV GII results between GPP and GVP and determine the sensitivity of the two assays for specific NoV GII genotypes. STUDY DESIGN: We genotyped discordant NoV GII strains identified in stool samples or rectal swabs collected prospectively from a cohort of children with acute gastroenteritis between December 2014 and July 2016. The sensitivities of GVP and GPP for NoV GII were compared by analyses of GVP threshold cycle (Ct) and ten-fold serial dilutions of positive samples of various NoV GII genotypes. RESULTS: All discordant samples (63/607) were NoV GII positive by GVP but negative by GPP. Twenty-two were successfully genotyped, fourteen of which were NoV GII genotype 2 (GII.2). The median Ct value of concordant positives was lower than that of discordant results (19.8 vs. 33.7; P<0.0001). GVP was 10 and at least 10,000-fold more sensitive than GPP in detecting NoV GII.3 and GII.2, respectively, but has similar sensitivity for NoV GII.4. Discordant GII.2 variant differed genetically from concordant GII.2 variants. CONCLUSIONS: GPP has lower sensitivity to detect NoV GII.2 than GVP and its use may lead to undetected cases clinically, and an underestimation of NoV disease burden at the population level. PMID- 29035763 TI - Optimized enzyme-linked immunosorbent assay for detecting cytomegalovirus infections during clinical trials of recombinant vaccines. AB - BACKGROUND: In clinical trials of cytomegalovirus (CMV) glycoprotein B (gB) vaccines, CMV infection is detected by first depleting serum of anti-gB antibodies and then measuring anti-CMV antibodies with a commercially available enzyme-linked immunosorbent assay (ELISA) kit, with confirmation of positive findings by immunoblot. OBJECTIVES: Identification of CMV immunoantigens for the development of an ELISA that detects specifically CMV infection in clinical samples from individuals immunized with gB vaccines. STUDY DESIGN: Sensitivity and specificity of ELISAs using antigenic regions of CMV proteins UL83/pp65, UL99/pp28, UL44/pp52, UL80a/pp38, UL57, and UL32/pp150 were measured. RESULTS: An IgG ELISA using a UL32/pp150 [862-1048] capture peptide was the most specific (93.7%) and sensitive (96.4%) for detecting CMV-specific antibodies in sera. The ELISA successfully detected CMV-specific antibodies in 22 of 22 sera of subjects who had been vaccinated with a gB vaccine but who had later been infected with CMV. The ELISA was linear over a wide range of CMV concentrations (57-16,814 ELISA units/mL) and was reproducible as indicated by a 5% intra-day and 7% inter day coefficients of variation. The signal was specifically competed by UL32/pp150 [862-1048] peptide but not by CMV-gB or herpes simplex virus 2 glycoprotein D. Lipid and hemoglobin matrix did not interfere with the assay. CONCLUSION: The UL32/pp150 [862-1048] IgG ELISA can be used for the sensitive and specific detection of CMV infection in gB-vaccinated individuals. PMID- 29035764 TI - Suitability of fluorescent whitening compounds (FWCs) as indicators of human faecal contamination from septic tanks in rural catchments. AB - Rural river catchments are impacted by diffuse pollution sources from agricultural practices and on-site domestic wastewater treatment systems (DWWTS), mainly septic tanks. Methods that can distinguish between contamination sources will significantly increase water management efficiency as they will allow for the development and application of targeted remediation measures. Fluorescent whitening compounds (FWC), are used as optical brighteners in laundry detergents and enter the environment through the discharge of domestic wastewater effluents. Due to their human specific source and potential simple fluorometric measurement this represents a very attractive method to be used by state monitoring agencies. In this study the suitability of FWCs as chemical indicators for human faecal contamination has been investigated in rural Irish catchments. It was found that no quantitative measurements are possible for FWCs in natural waters when using simple fluorometric methods. Hence a simple presence/absence approach needs to be applied. The detectability of FWCs was quantified and found to decrease with higher organic matter content of the river water which has its own fluorescence. This enabled the establishment of equations to predict detection limits and assess the method's suitability for individual catchments based on organic matter concentrations. Furthermore a modified photodecay method is suggested that increases sensitivity of the technique by up to 59%. Applications at rural study sites found some removal of FWCs in percolation areas of DWWTSs but they were still detectable 40 cm below the infiltration depth. FWCs were also detected as distinguishable peaks in impacted streams where septic tank effluents have a high contribution to the river flow. PMID- 29035765 TI - A force-based mechanistic model for describing activated sludge settling process. AB - Sludge settling as the last step in the biological wastewater treatment process substantially affects the system performance, and thus the design and control optimization of the sludge settling process has been frequently investigated with mathematical modeling tools. So far, these models are developed on the basis of the solid flux theory with numerous parameters and complicated boundary conditions, and their prediction results are often unsatisfactory. In this work, a new force-based mechanical model with five parameters was developed, in which five forces were adopted and Newton's law, rather than the flux theory, was used to describe the sludge settling process. In such a model, the phase interactions were taken into account. New functions of hydrodynamic drag, solids pressure and shear stress were developed. Model validation results demonstrate that both batch and continuous sludge settling processes could be accurately described by this model. The predictions of this model were more accurate than those of flux theory based models, suggesting its advantages in understanding sludge settling behaviors. In addition, this mechanistic model needed to input 5 parameters and set 1 boundary condition only, and could be directly executed by commercial computational fluid dynamics software. Thus, this force-based model provides a more convenient and useful tool to improve the activated sludge settling design and operation optimization. PMID- 29035766 TI - Sequential biofiltration - A novel approach for enhanced biological removal of trace organic chemicals from wastewater treatment plant effluent. AB - Recent studies revealed the benefits of oligotrophic and oxic conditions for the biological removal of many trace organic chemicals (TOrCs) during soil-aquifer treatment. These findings indicate an unused tuning potential that might also be applicable in engineered biofiltration systems with drastically reduced hydraulic retention times for an enhanced mitigation of TOrCs during wastewater treatment. This study introduces the novel approach of sequential biofiltration (SBF) for the advanced treatment of secondary effluent using two granular media filters operated in series with an intermediate aeration step aiming for oxic and oligotrophic conditions in the second filter stage. Results from the experiments conducted at pilot-scale confirm a reduced substrate availability and predominantly oxic conditions in the second filter stage of the SBF setup. An increased removal of several TOrCs was observed in an SBF system as compared to a conventional single-stage biofiltration unit operated at the same overall empty bed contact time (EBCT). Short-term tests with varying EBCTs in the first filter stage revealed a high degree of system robustness of TOrC mitigation when confronted with sudden hydraulic load variations. Higher removal of several TOrCs at increased EBCTs in the second filter stage indicates that EBCT might play a crucial role for the degradation of certain compounds. PMID- 29035767 TI - Life-cycle energy impacts for adapting an urban water supply system to droughts. AB - In recent years, cities in some water stressed regions have explored alternative water sources such as seawater desalination and potable water recycling in spite of concerns over increasing energy consumption. In this study, we evaluate the current and future life-cycle energy impacts of four alternative water supply strategies introduced during a decade-long drought in South East Queensland (SEQ), Australia. These strategies were: seawater desalination, indirect potable water recycling, network integration, and rainwater tanks. Our work highlights the energy burden of alternative water supply strategies which added approximately 24% life-cycle energy use to the existing supply system (with surface water sources) in SEQ even for a current post-drought low utilisation status. Over half of this additional life-cycle energy use was from the centralised alternative supply strategies. Rainwater tanks contributed an estimated 3% to regional water supply, but added over 10% life-cycle energy use to the existing system. In the future scenario analysis, we compare the life cycle energy use between "Normal", "Dry", "High water demand" and "Design capacity" scenarios. In the "Normal" scenario, a long-term low utilisation of the desalination system and the water recycling system has greatly reduced the energy burden of these centralised strategies to only 13%. In contrast, higher utilisation in the unlikely "Dry" and "Design capacity" scenarios add 86% and 140% to life-cycle energy use of the existing system respectively. In the "High water demand" scenario, a 20% increase in per capita water use over 20 years "consumes" more energy than is used by the four alternative strategies in the "Normal" scenario. This research provides insight for developing more realistic long-term scenarios to evaluate and compare life-cycle energy impacts of drought adaptation infrastructure and regional decentralised water sources. Scenario building for life-cycle assessments of water supply systems should consider i) climate variability and, therefore, infrastructure utilisation rate, ii) potential under-utilisation for both installed centralised and decentralised sources, and iii) the potential energy penalty for operating infrastructure well below its design capacity (e.g., the operational energy intensity of the desalination system is three times higher at low utilisation rates). This study illustrates that evaluating the life-cycle energy use and intensity of these type of supply sources without considering their realistic long-term operating scenario(s) can potentially distort and overemphasise their energy implications. To other water stressed regions, this work shows that managing long-term water demand is also important, in addition to acknowledging the energy-intensive nature of some alternative water sources. PMID- 29035768 TI - UV photoconversion of environmental oestrogen diethylstilbestrol and its persistence in surface water under sunlight. AB - As one of the most oestrogenic synthetic compounds in water environment, diethylstilbestrol (DES) has been studied for decades. Some studies showed that DES can be removed by ultraviolet (UV) irradiation. However, no one has paid attention to the formation of oestrogenic disinfection by-products (DBPs) and the persistence of DES in surface water remains a mystery. In this study, UV was found to be very effective in removing oestrogenic activity regardless of water quality. Three oestrogenic DBPs were specifically isolated by oestrogen receptor based affinity chromatography and identified as 9,10-diethylphenanthrene-3,6 diol, cis-DES and Z,Z-dienestrol. Among them, 9,10-diethylphenanthrene-3,6-diol was proved to have stronger oestrogenic activity than E2, but it can be further photodegraded. In addition, DES was also demonstrated to be a photochromic compound, whose UV-induced intermediates can be transformed back to DES under sunlight, which significantly slows down the photodegradation of DES. This study solves the question as to why UV-degradable DES is still detectable in the ambient water and provides a deep understanding of DES removal during UV disinfection. PMID- 29035769 TI - Transport and long-term release behavior of polymer-coated silver nanoparticles in saturated quartz sand: The impacts of input concentration, grain size and flow rate. AB - This study investigated the transport and long-term release of stabilized poly vinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) in a quartz sand column with various sand grain sizes (0.3-0.5 MUm, 0.5-1.0 MUm, 1.0-2.0 MUm), input concentrations of PVP-AgNP solution (1, 5, 15, 25 mg/L), and flow rates corresponding to a filter velocities (1.0, 1.5, 2.0, 2.5 mL/min-0.14, 0.21, 0.28, 0.35 cm/min) by determining breakthrough curves, retention profiles, and long term release curves. Breakthrough curves and retention profiles were simulated by a mathematical model based on the advection dispersion equation coupled with second-order kinetics. The increased transport of PVP-AgNPs in quartz sand occurred with increased grain sizes and reduced input concentrations, and the transport can be predicted by the colloid filtration theory and DLVO theory. The long-term (one week) release amounts of retained PVP-AgNPs were 42.78%, 31.45%, and 10.95% in the fine, medium, and coarse sand columns, respectively, and were 34.70%, 40.79%, 47.24%, and 57.32% at flow rates of 0.0363, 0.0436, 0.0545, and 0.0726 mL/min, respectively. The released quantity of retained PVP-AgNPs decreased as the sand grain size increased. This phenomenon is opposite with the trend of increased transport of PVP-AgNPs with increased grain size in the transport test, which most likely because colloidal filtration regulates the transport process and adsorption (and desorption) dominates the release process. Increasing the flow rate increased the shear force on the particles, which improved the release of PVP-AgNPs. The results of the release tests further verified our previous published studies showing that the long-term release of retained PVP-AgNPs in the quartz sand was mostly in the form of released nanoparticles rather than ions. The results of this study indicated that sand grain size, input concentration, and flow rate have a prominent influence on the transport and long-term release behavior of PVP-AgNPs in saturated quartz sand. PMID- 29035770 TI - Solar desalination of seawater using double-dye-modified PTFE membrane. AB - The production of purified water by seawater desalination is now a significant countermeasure against recent severe water shortage. As the global warming is thought to be a dominant cause of the water scarcity problem, the energy employed for the desalination should be free from fossil fuels. We recently reported a simple membrane desalination combining the harvesting of solar energy and the membrane permeation of vaporized water. Water on a PTFE (polytetrafluoroethylene) membrane modified with disperse red 1 (DR1) as an azobenzene dye that photo isomerizes with visible light permeates through it under visible light irradiation. The penetrated water was efficiently desalinated to produce purified water by membrane distillation mechanism, where water was evaporated by DR1 using solar energy. In this paper, we report that the aqueous solution of rhodamine B on non modified PTFE membrane permeated the membrane to be purified under visible light irradiation. This paper also reports that a PTFE membrane modified with disperse blue 14 (DB14) was active for the desalination. Thus, even these non azobenzene dyes were revealed to be available for the light induce water permeation. When DR1 and DB14 were modified to PTFE membrane concurrently, a higher performance of seawater desalination using simulated sunlight was achieved by efficient absorption of the irradiated light with DR1 and DB14. PMID- 29035771 TI - Separation of peroxidases from Miscanthus x giganteus, their partial characterisation and application for degradation of dyes. AB - Due to wide applicative potential of peroxidases (POXs), the search for novel sources and forms, possibly with better characteristics and performances, is justified. In this study, POXs from Miscanthus x giganteus rhizomes grown in chernozem-like soil and mine tailings were examined. Higher activity of POXs in samples originating from the metal-contaminated soil was found. The quantity of acidic isoforms was much greater than basic. The rates of reactions catalysed by acidic POX isoforms decreased slightly at 50 degrees C, whereas stability of basic isoforms was affected at 40 degrees C. Concentrations of Zn, Mn and Fe were higher in rhizomes grown in mine tailings, and negatively correlated with the concentration of proteins. Basic POX isoforms effectively degraded CBB R250, while Amidoblack 10b was predominantly degraded by acidic isoforms. Thus, Miscanthus x giganteus can be used as a source of POXs which can be applied for dye decomposition and, possibly, waste water management. PMID- 29035772 TI - Effect of lignite on alleviation of salt toxicity in soybean (Glycine max L.) plants. AB - Salt toxicity of agricultural land is a natural phenomenon which is due to agricultural irrigation. This toxicity is harmful to crop productivity via increasing oxidative stress products. In a factorial controlled trial, four levels of lignite-enriched soil (soil lignite content: none, 50, 75 and 100 g kg 1) were exposed to three levels of soil salinity (0, 5 and 10 dS m-1 NaCl). Then reactive oxygen species (ROS) generation (hydrogen peroxide and superoxide radical), lipid peroxidation, antioxidant enzymes activities (peroxidase, catalase and super oxide dismutase), proline, glycine betaine, soluble sugars and soluble protein contents of soybean plants were compared across different lignite concentration and saline toxicity. Under the 5 and 10 dS m-1 NaCl, sodium entry to the leaf and root cells, hydrogen peroxide concentration, superoxide radical generation, lipid peroxidation and osmoprotectants creation increased and consequently plant growth reduced (12-49%). Lignite applications by improving the cation exchange capacity of soil (8-16%), enriched the leaf and root cells with potassium (5-26%), calcium (40-56%), magnesium (30-42%) and inhibited the sodium entry to the cells, and consequently increased potassium/sodium ratio and reduced oxidative stress, antioxidant activities and synthesis of osmoprotectants in soybean leading to increased plant biomass (18-37%). Lignite usage in 75 and 100 g kg-1 soil showed a better effect than 50 g kg-1 soil on reducing harmful effects of salt toxicity. Soil enrichment with lignite improves plant tolerance to salt toxicity via decreased oxidative stress. PMID- 29035773 TI - First Irish and tenth case of small bowel obstruction secondary to suprapubic catheterisation in the world. Case report and case review of a rare complication of suprapubic catheterisation. AB - INTRODUCTION: Percutaneous Suprapubic urinary bladder catheterisation (SPC) is a common procedure performed in cases of urinary retention where attempt to pass urethral catheter has failed. However, the procedure requires meticulous precision, vigilance and sound knowledge of anatomy, to avoid grave complications. We are reporting a very rare complication of Suprapubic catheterisation that is small bowel obstruction. Our case is first Irish and 10th global case of small bowel obstruction secondary to SPC. CASE PRESENTATION: Aim of this study was to report this rare complication of the SPC in our patient who was 88 years old retired farmer presenting to emergency department with small bowel obstruction. In our case after clinical examination diagnosis was made with CT scan. Laparoscopy done and found that SPC passed through mesentery before entering bladder and was released laparoscopically. We also searched the literature to find similar reported cases to extract useful information from these cases and use this information to draw conclusions and make recommendations to avoid injuries in the future. Database search conducted in March 2017 on the bibliographic databases Ovid MEDLINE (1946 to November 2016) and EMBASE (1980 to November 2016) along with additional reference searching revealed only 9 reported cases of small bowel obstruction secondary to SPC. CONCLUSIONS: From the extensive literature search we found that there are only nine cases reported so far globally, and our case is first Irish and tenth international case of bowel obstruction secondary to SPC. Significantly distended bladder, use of ultrasound and extra precaution in elderly patients can reduce the risk of damage to bowel. PMID- 29035774 TI - Facial dog bite injuries in children: A case report. AB - INTRODUCTION: Dog bites are common and can affect victims of different ages, from children to the elderly. Injuries are usually located in different body regions, including head and face. The treatment of choice for injuries is the suture of the lesion, accompanied by antibiotic therapy and tetanus and anti-rabies vaccination. PRESENTATION OF CASE: An 11-year-old male black patient was admitted to the Surgery and Maxillo-Facial Traumatology Service, on an urgent basis, victim of domestic animal aggression (dog biting). The child had multiple and extensive lesions on the face, trauma with laceration with loss of substance, involving the left genic region, lower and upper lip, and lower gingival-labial sulcus. DISCUSSION: Smaller children are especially vulnerable to injuries in the craniofacial region due their low stature, propensity to crawl/play on the ground and exploratory behavior. The primary treatment of bites is by means of direct suture, grafting or local flaps, depending on the type of wound and the surgeon's decision, regardless of time elapsed from the attack. CONCLUSION: This case shows a case of a child patient victim of animal bite, with lesions limited to the region of the face. The patient was followed up for a month and showed good wound healing without any complications. PMID- 29035775 TI - Avoiding the pocket: A case report of coiling of distal shunt catheter into subcutaneous pocket. AB - INTRODUCTION: Hydrocephalus is one of the most common disorders of neurosurgery and ventricular shunting, the primary surgical intervention, malfunctions in 85% of patients by 10 years. PRESENTATION OF CASE: Here we present a case of a 12 year-old girl with history of a vagal nerve stimulator (VNS) and ventricular shunt, most recently revised from ventriculoatrial (VA) to ventriculoperitoneal (VP) shunt at an outside hospital. The patient presented with a new left chest bulge, nausea, emesis, and seizures. Imaging revealed the patient's distal shunt catheter to have completely migrated and coiled into the VNS subcutaneous pocket. Subsequently, the patient's distal shunt catheter was externalized, and later internalized back to a VA shunt. DISCUSSION: Potential spaces from previous surgeries such as VNS can lead to coiling of distal shunt catheters. In this case, the coiled distal shunt catheter led to hydrocephalus and the patient's presenting symptoms. CONCLUSION: It is imperative to recognize patients with previous surgeries, especially those involving subcutaneous implants and to avoid passing of distal shunt catheters through these potential spaces. PMID- 29035776 TI - Dammarane-type saponins from the leaves of Panax notoginseng and their neuroprotective effects on damaged SH-SY5Y cells. AB - Seven dammarane-type saponins previously undescribed (notoginsenosides Fh1-Fh7) were isolated from the aqueous extract leaves of Panax notoginseng (Burk.) F.H.Chen (Araliaceae), together with eleven known saponins. Their structures of were elucidated by spectroscopic analysis (NMR, UV, IR, ect.), HR-ESI-MS techniques and chemical methods. Screening results indicated that compounds 4, 5, 12, 13 showed moderate neuroprotective effects on H2O2-induced cellular damage in human neuroblastoma SH-SY5Y cells (10 MUM). PMID- 29035777 TI - Investigation of the composition-structure-property relationship of AsxTe100-x films prepared by plasma deposition. AB - AsxTe100-x amorphous films of different chemical content were prepared by Plasma Enhanced Chemical Vapor Deposition (PECVD). For the first time the optical properties of As-Te chalcogenide materials have been measured in UV-VIS-IR ranges (from 0.2 to 25MUm) for a very wide range of chemical compositions (20-80at.% As). As-Te films have been tuned from 0.80 to 1.10eV. The IR results obtained have been juxtaposed with the Raman spectroscopy findings to establish the correlation between optical and structural properties of the materials developed. Reversible and irreversible changes in the phase composition of the As-Te films under annealing of the surface by laser irradiation have been demonstrated and studied. In order to determine the potential areas of application of the prepared As-Te films the thermal and photo sensitivity has been also investigated. PMID- 29035778 TI - The 'over-researched community': An ethics analysis of stakeholder views at two South African HIV prevention research sites. AB - Health research in resource-limited, multi-cultural contexts raises complex ethical concerns. The term 'over-researched community' (ORC) has been raised as an ethical concern and potential barrier to community participation in research. However, the term lacks conceptual clarity and is absent from established ethics guidelines and academic literature. In light of the concern being raised in relation to research in low- and middle-income countries (LMICs), a critical and empirical exploration of the meaning of ORC was undertaken. Guided by Emanuel et al.'s (2004) eight principles for ethically sound research in LMICs, this study examines the relevance and meaning of the terms 'over-research' and 'over researched community' through an analysis of key stakeholder perspectives at two South African research sites. Data were collected between August 2007 and October 2008. 'Over-research' was found to represent a conglomeration of ethical concerns often used as a proxy for standard research ethics concepts. 'Over-research' seemed fundamentally linked to disparate positions and perspectives between different stakeholders in the research interaction, arising from challenges in inter-stakeholder relationships. 'Over-research' might be interpreted to mean exploitation. However, exploitation itself could mean different things. Using the term may lead to obscured understanding of real or perceived ethical concerns, making it difficult to identify and address the underlying concerns. It is recommended that the term be carefully and critically interrogated for clarity when used in research ethics discourse. Because it represents other legitimate concerns, it should not be dismissed without careful exploration. PMID- 29035779 TI - Data-driven heterogeneity in mathematical learning disabilities based on the triple code model. AB - Many classifications of heterogeneity in mathematical learning disabilities (MLD) have been proposed over the past four decades, however no empirical research has been conducted until recently, and none of the classifications are derived from Triple Code Model (TCM) postulates. The TCM proposes MLD as a heterogeneous disorder, with two distinguishable profiles: a representational subtype and a verbal subtype. A sample of elementary school 3rd to 6th graders was divided into two age cohorts (3rd - 4th grades, and 5th - 6th grades). Using data-driven strategies, based on the cognitive classification variables predicted by the TCM, our sample of children with MLD clustered as expected: a group with representational deficits and a group with number-fact retrieval deficits. In the younger group, a spatial subtype also emerged, while in both cohorts a non specific cluster was produced whose profile could not be explained by this theoretical approach. PMID- 29035780 TI - Long non-coding RNAs in the atherosclerotic plaque. AB - BACKGROUND AND AIMS: Genetic and environmental factors are important components of the development of atherosclerosis. Long non-coding RNA (lncRNAs) have emerged as regulators of multiple pathophysiological pathways in the cardiovascular system. Here, we investigated potential associations between lncRNAs and atherosclerosis. METHODS: Tissue samples from atherosclerotic coronary artery plaques and non-atherosclerotic internal mammary artery were obtained from 20 patients during coronary artery bypass surgery. Expression levels of five lncRNAs known to be associated with coronary artery disease were measured using quantitative PCR. RESULTS: Cyclin-dependent kinase inhibitor 2B antisense RNA 1 (ANRIL) and myocardial infarction-associated transcript (MIAT) were more expressed in the atherosclerotic arteries compared to the non-atherosclerotic arteries. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) was less expressed in the atherosclerotic plaques. Expression levels of potassium voltage-gated channel, KQT-like subfamily, member 1 opposite strand/antisense transcript 1 (KCNQ1OT1) and hypoxia inducible factor 1A antisense RNA 2 (aHIF) were comparable between atherosclerotic and non-atherosclerotic arteries. In the atherosclerotic plaque, expression levels of MALAT1, MIAT, KCNQ1OT1 and aHIF were inversely correlated with age. CONCLUSIONS: We report significant associations between lncRNAs and atherosclerosis. These findings support a role for lncRNAs in coronary artery disease development. PMID- 29035782 TI - Opposing effects of rheumatoid arthritis and low dose prednisolone on arginine metabolomics. AB - BACKGROUND AND AIMS: The effects of low dose prednisolone on circulating markers of endothelial function, the arginine metabolites asymmetric dimethyl arginine (ADMA), mono methyl arginine (MMA), and homoarginine, are uncertain. We assessed whether patients with rheumatoid arthritis have perturbations in arginine metabolite concentrations that are reversed by low dose prednisolone. METHODS: Eighteen rheumatoid arthritis patients who had not taken prednisolone for >6 months (non-glucocorticoid (GC) users), 18 rheumatoid arthritis patients taking continuous oral prednisolone (6.5 +/- 1.8 mg/day) for >6 months (GC users) and 20 healthy controls were studied. Fasting plasma concentrations of ADMA, MMA, and homoarginine were measured by ultra-performance liquid-chromatography. Baseline data from non-GC users were compared with healthy controls to assess the effect of rheumatoid arthritis. The change in arginine metabolites in non-GC users after 7 days of prednisolone (6 mg/day) was used to assess the acute effects of prednisolone. Baseline data from non-GC users were compared with GC users to assess the chronic effects of prednisolone. RESULTS: Non-GC users had higher ADMA (0.59 +/- 0.03 vs. 0.47 +/- 0.01 MUM, p = 0.004) and MMA concentrations (0.10 +/- 0.01 vs. 0.05 +/- 0.00 MUM, p < 0.001) than controls. The only change with acute prednisolone was a reduction in homoarginine (1.23 +/- 0.06 vs. 1.08 +/- 0.06 MUM, p = 0.04) versus baseline. GC users had lower concentrations of ADMA (0.51 +/- 0.02 vs. 0.59 +/- 0.03 MUM, p = 0.03) than non-GC users. CONCLUSIONS: Rheumatoid arthritis patients have higher concentrations of ADMA and MMA, inhibitors of endothelial function. Chronic, but not acute, prednisolone therapy is associated with a lower ADMA concentration, suggesting a salutary effect of long-term glucocorticoid treatment on endothelial function. PMID- 29035783 TI - Radiotracer investigation on the measurement of residence time distribution in an ethyl acetate reactor system with a large recycle ratio. AB - A radiotracer investigation was carried out on the measurement of residence time distribution (RTD) of process fluid in an industrial-scale ethyl acetate reactor system, which consists of two independent reactors with recirculation and connected in series with each other. Bromine-82 as ammonium bromide was used as the radiotracer for the RTD experiments at different operating conditions. The individual reactors and the overall reactor system were modelled using physically representative phenomenological models comprising of continuously stirred tank reactors (CSTRs). The results showed that the recirculation rate considerably affected the flow mixing behaviour and mean residence time of the process fluid in the reactor system. The results also showed that there was bypassing of the fluid in the first reactor that ranged from 12% to 22% and 40% dead volume at different operating conditions, whereas the second reactor behaved closely as an ideal CSTR. The results of the investigation can be used to optimise the process parameters and design new improved reactor systems for the production of ethyl acetate. PMID- 29035781 TI - Lack of myeloid Fatp1 increases atherosclerotic lesion size in Ldlr-/- mice. AB - BACKGROUND AND AIMS: Altered metabolism is an important regulator of macrophage (MPhi) phenotype, which contributes to inflammatory diseases such as atherosclerosis. Broadly, pro-inflammatory, classically-activated MPhis (CAM) are glycolytic while alternatively-activated MPhis (AAM) oxidize fatty acids, although overlap exists. We previously demonstrated that MPhi fatty acid transport protein 1 (FATP1, Slc27a1) was necessary to maintain the oxidative and anti-inflammatory AAM phenotype in vivo in a model of diet-induced obesity. The aim of this study was to examine how MPhi metabolic reprogramming through FATP1 ablation affects the process of atherogenesis. We hypothesized that FATP1 limits MPhi-mediated inflammation during atherogenesis. Thus, mice lacking MPhi Fatp1 would display elevated formation of atherosclerotic lesions in a mouse model lacking the low-density lipoprotein (LDL) receptor (Ldlr-/-). METHODS: We transplanted bone marrow collected from Fatp1+/+ or Fatp1-/- mice into Ldlr-/- mice and fed chimeric mice a Western diet for 12 weeks. Body weight, blood glucose, and plasma lipids were measured. Aortic sinus and aorta lesions were quantified. Atherosclerotic plaque composition, oxidative stress, and inflammation were analyzed histologically. RESULTS: Compared to Fatp1+/+Ldlr-/- mice, Fatp1-/-Ldlr-/- mice exhibited significantly larger lesion area and elevated oxidative stress and inflammation in the atherosclerotic plaque. Macrophage and smooth muscle cell content did not differ by Fatp1 genotype. There were no significant systemic alterations in LDL, high-density lipoprotein (HDL), total cholesterol, or triacylglyceride, suggesting that the effect was local to the cells of the vessel microenvironment in a Fatp1-dependent manner. CONCLUSIONS: MPhi Fatp1 limits atherogenesis and may be a viable target to metabolically reprogram MPhis. PMID- 29035784 TI - Concentrations of Staphylococcus species in indoor air as associated with other bacteria, season, relative humidity, air change rate, and S. aureus-positive occupants. AB - The aim of this study was to obtain knowledge about concentrations of Staphylococcus aureus, MRSA (methicillin-resistant S. aureus), and other Staphylococcus species in indoor air in Greater Copenhagen and about factors affecting the concentrations. The effects of season, temperature, relative humidity, air change rate (ACR), other bacterial genera, area per occupant, and presence of S. aureus-positive occupants were studied. In samples from 67 living rooms, S. hominis, S. warneri, S. epidermidis, and S. capitis were found in 13 25%; S. saprophyticus, S. cohnii, and S. pasteuri in 5-10%; and S. lugdunensis, S. haemolyticus, S. caprae, S. equorum, S. kloosii, S. pettenkoferi, S. simulans, and S. xylosus in less than 3%. Staphylococcus aureus were found in two of 67 living rooms: spa type t034 (an MRSA) was recovered from a farmhouse, while spa type t509 was found in an urban home. Two species, S. equorum and S. kloosii, were found only in the farmhouse. Staphylococcus was significantly associated with season with lowest concentration and richness in winter. Genera composition was associated with ACR with smaller fractions of Staphylococcus at higher ACR, while richness was significantly and negatively associated with area per occupant. Concentration of Staphylococcus correlated positively with the total concentration of bacteria, but negatively with the total concentration of other bacteria. The concentration of Staphylococcus was not significantly associated with concentrations of the other abundant genera Bacillus, Kocuria, and Micrococcus. In offices with S. aureus-positive occupants, airborne S. aureus was not found. In conclusion, Staphylococcus species constitute a considerable proportion of the airborne bacteria in the studied homes and offices. However, both S. aureus and MRSA had very low prevalence during all seasons. Thus, transmission of S. aureus and MRSA through the air in living rooms in Copenhagen is expected to be limited. The negative associations between ACR and the fraction Staphylococcus constituted out of total bacteria, and between area per occupant and Staphylococcus richness indicate that it might be possible to affect the presence of airborne Staphylococcus in homes. PMID- 29035785 TI - Association of blood polychlorinated biphenyls and cholesterol levels among Canadian Inuit. AB - BACKGROUND: It has generally been thought that Inuit populations have low risk of cardiovascular disease due to high consumption of omega-3 fatty acids found in traditional marine-based diets. However, results of recent surveys showed that Inuit populations are experiencing increasing rates of cardiovascular disease and related risk factors. OBJECTIVE: The purpose of this study was to investigate if blood polychlorinated biphenyls (PCBs) are associated with high cholesterol and related parameters in Canadian Inuit, known risk factors for cardiovascular disease. METHODS: The Adult Inuit Health Survey (IHS, 2007-2008) included 2595 Inuit participants from three regions of the Canadian Arctic, of which 2191 could be classified as with or without high cholesterol. The high cholesterol outcome was defined by LDL-C > 3.36mmol/L or taking medication(s) that reduce cholesterol, and was examined in adjusted logistic regression models with individual blood levels of PCB congeners, sum of dioxin-like PCBs (?DL-PCBs), or sum of non-dioxin-like PCBs (?NDL-PCBs). Statistically significant covariates for high cholesterol were ranked in importance according to the proportion of the model log likelihood explained. Continuous clinical parameters of total cholesterol, triglycerides, LDL-C, and HDL-C were examined in multiple linear regression models with ?DL-PCBs or ?NDL-PCBs. RESULTS: A total of 719 participants had high cholesterol (32.8%). PCBs were associated with increased risk of high cholesterol, and higher levels of serum triglycerides, total cholesterol, and LDL-C. No association was observed between PCBs and serum HDL-C. With respect to other statistically significant covariates for high cholesterol, the log likelihood ranking of PCBs generally fell between body mass index (BMI) and age. CONCLUSION: Further work is needed to corroborate the associations observed with PCBs and lipids in Canadian Inuit and to examine if they are causal in the direction anticipated. PMID- 29035786 TI - Comparative transcriptome analysis reveals networks of genes activated in the whitefly, Bemisia tabaci when fed on tomato plants infected with Tomato yellow leaf curl virus. AB - The whitefly Bemisia tabaci can transmit hundreds of viruses to numerous agricultural crops in the world. Five genera of viruses, including Begomovirus and Crinivirus, are transmitted by B. tabaci. There is little knowledge about the genes involved in virus acquisition and transmission by whiteflies. Using a comparative transcriptomics approach, we evaluated the gene expression profiles of whiteflies (B. tabaci MEAM1) after feeding on tomato infected by a begomovirus, Tomato yellow leaf curl virus (TYLCV), in comparison to a recent study, in which whiteflies were fed on tomato infected by the crinivirus, Tomato chlorosis virus (ToCV). The data revealed similar temporal trends in gene expression, but large differences in the number of whitefly genes when fed on TYLCV or ToCV-infected tomato. Transcription factors, cathepsins, receptors, and a hemocyanin gene, which is implicated in mediating antiviral immune responses in other insects and possibly virus transmission, were some of the genes identified. PMID- 29035787 TI - Identification of N-linked glycosylation sites in the spike protein and their functional impact on the replication and infectivity of coronavirus infectious bronchitis virus in cell culture. AB - Spike (S) glycoprotein on the viral envelope is the main determinant of infectivity. The S protein of coronavirus infectious bronchitis virus (IBV) contains 29 putative asparagine(N)-linked glycosylation sites. These post translational modifications may assist in protein folding and play important roles in the functionality of S protein. In this study, we used bioinformatics tools to predict N-linked glycosylation sites and to analyze their distribution in IBV strains and variants. Among these sites, 8 sites were confirmed in the S protein extracted from partially purified virus particles by proteomics approaches. N-D and N-Q substitutions at 13 predicted sites were introduced into an infectious clone system. The impact on S protein-mediated cell-cell fusion, viral recovery and infectivity was assessed, leading to the identification of sites essential for the functions of IBV S protein. Further characterization of these and other uncharacterized sites may reveal novel aspects of N-linked glycosylation in coronavirus replication and pathogenesis. PMID- 29035788 TI - Coronavirus infectious bronchitis virus non-structural proteins 8 and 12 form stable complex independent of the non-translated regions of viral RNA and other viral proteins. AB - The cleavage products from coronavirus polyproteins, known as the non-structural proteins (nsps), are believed to make up the major components of the viral replication/transcription complex. In this study, several nsps encoded by avian gammacoronavirus infectious bronchitis virus (IBV) were screened for RNA-binding activity and interaction with its RNA-dependent RNA polymerase, nsp12. Nsp2, nsp5, nsp8, nsp9 and nsp10 were found to bind to untranslated regions (UTRs), while nsp8 was confirmed to interact with nsp12. Nsp8 has been reported to interact with nsp7 and functions as a primase synthesizing RNA primers for nsp12. Further characterization revealed that nsp8-nsp12 interaction is independent of the UTRs of viral RNA, and nsp8 interacts with both the N- and C-terminal regions of nsp12. These results have prompted a proposal of how the nsp7-nsp8 complex could possibly function in tandem with nsp12, forming a highly efficient complex that could synthesize both the RNA primer and viral RNA during coronavirus infection. PMID- 29035789 TI - An easy way to detect dengue virus using nanoparticle-antibody conjugates. AB - The aim of the present research is to propose a new method based on localized surface plasmon resonance (LSPR) for fast dengue virus detection. A pool with four dengue serotypes (DENV-1, -2, -3, -4) was detected through antigen-antibody binding using gold nanoparticles (AuNPs) as signaling antibody carriers. Such result was confirmed through surface plasmon resonance (SPR), transmission electron microcopy (TEM), and dynamic light scattering (DLS) techniques. The limit of detection was calculated for TCID50 107 demonstrating a linear correlation between viral concentration and number of cells with an r2 value of > 0.993. The assay presented good sensibility and reproducibility of results and the negative controls were not mistakenly detected. This design requires no pretreatment or high trained person. In the future, it can be used in commercial antibody detection kits. PMID- 29035790 TI - Is ecological food also radioecological? - 210Po and 210Pb studies. AB - Presented are results of a study on accumulation of naturally occurring 210Po and 210Pb in ecological and conventional farming food products in Poland: fruits, vegetables and cereals. The main idea behind this research was to determine the activity concentrations of 210Po and 210Pb in ecological and commercial food as well as calculate and compare the effective dose (radiation) connected to different origin of analyzed food products consumption. The studies showed the majority of all compared food samples contained similar 210Po and 210Pb activities and statistically, the consumption of organic and commercial food would give similar annual effective dose. PMID- 29035791 TI - Availability of polycyclic aromatic hydrocarbons to earthworms in urban soils and its implications for risk assessment. AB - Polycyclic aromatic hydrocarbons (PAHs) are a global problem, and in urban soils they can be found at potentially hazard levels. Nevertheless, the real risks that these contaminants pose to the environment are not well known, since the bioavailability of PAHs in urban soils has been poorly studied. Therefore, the bioavailability of PAHs in some selected urban soils from Lisbon (Portugal) was evaluated. Moreover, the applicability of a first screening phase based on total contents of PAHs was assessed. Results show that bioavailability of PAHs is reduced (low levels in earthworms, low accumulation percentages, and low biota-to soil accumulation factors values), especially in more contaminated soils. The aging of these compounds explains this low availability, and confirms the generally accepted assumption that accumulation of PAHs in urban areas is mostly related with a long-term deposition of contaminated particles. The comparison of measured PAHs concentrations in earthworm tissues with the ones predicted based on theoretical models, reinforce that risks based on total levels are overestimated, but it can be a good initial approach for urban soils. This study also highlights the need of more reliable ecotoxicological data. PMID- 29035792 TI - Evolution of consciousness of exposure to siloxanes-review of publications. AB - The purpose of this description is to review scientific literature from 1944 to 2017 as a source of information on the reasons for the increased interest in siloxanes (silicones). Not only the research area, but first, the changes in the tendency of research aims are important issues in the evaluation. On the one hand, the authors emphasize the unique properties of linear and cyclic siloxanes, providing many examples of beneficial applications, and on the other hand, there are some warnings of overcoming of the safety barrier of their presence in human environment. Analyzing the results from the SCOPUS database, it can be argued that the increased interest of scientists and government agencies particularly relates to the analysis of siloxanes in biological and environmental samples. This is caused not only by the widespread use of various siloxanes in the pharmaceutical, medical, cosmetic and food industries, but also by the direct contact of these compounds with tissues, as well as an increased access to knowledge and modern research tools that have developed the awareness of hazards. The development of research methods enables not only constant monitoring of progressively lower siloxanes concentrations in various samples, but because of the specificity of these methods, it also enables an identification of specific siloxane compounds and evaluation of their effects on humans and environment. This paper discusses the issues of the evolution of consciousness of exposure to siloxanes due to their increased synthesis and widespread use in many areas of human life, which contributes to environmental pollution. PMID- 29035793 TI - Assessment of potential bioavailability of heavy metals in the sediments of land freshwater interfaces by diffusive gradients in thin films. AB - It is important to understand the potential bioavailability of heavy metals in the sediments of land-freshwater interfaces (between terrestrial and aquatic ecosystems). Therefore, we evaluated the pollution of Cr, Ni, Cu, Zn, As, and Cd in land-freshwater interface sediments/soils according to total concentrations, and used sequential extraction method to measure different fractions of Cd. Then, the diffusive gradients in thin films (DGT) technique was employed to study the potential bioavailability of metals. Results showed that the concentrations of exchangeable and weak acid soluble fraction and oxidizable fraction were higher in ecotone area, and the values of reducible fraction and residual fraction were higher in deep water area. There existed significant positive correlations between [Cd]-DGT (concentration of Cd measured by DGT) and EXC-Cd (exchangeable and weak acid soluble fraction of Cd) (r2 = 0.65), but the significant negative correlation was found between [Cd]-DGT and RES-Cd (Residual fraction of Cd) (r2 = 0.52). DGT technique is a feasible method to measure potential bioavailability of heavy metals for risk assessment in the sediments/soils of land-freshwater interfaces. PMID- 29035794 TI - Role of adsorption in combined membrane fouling by biopolymers coexisting with inorganic particles. AB - This study was conducted in order to obtain a better understanding of the combined fouling by biopolymers coexisting with inorganic particles from the aspects of fouling index, fouling layer structure and biopolymer-particle interactions. Calcium alginate was used as the model biopolymer and Fe2O3, Al2O3, kaolin, and SiO2 were used as model inorganic particles. Results showed that the combined fouling differed greatly among the four types of inorganic particles. The differences were attributed particularly to the different adsorption capacities for calcium alginate by the particles with this capacity decreasing in the order of Fe2O3, Al2O3, kaolin and SiO2. Particle size measurement and electron microscopic observation indicated the formation of agglomerates between calcium alginate and those inorganic particles exhibiting strong adsorption capacity. A structure was proposed for the combined fouling layer comprised of a backbone cake layer of alginate-inorganic particle agglomerates with the pores partially filled with discontinuous calcium alginate gels. The filterability of the fouling layer was primarily determined by the abundance of the gels. The strength of physical interaction between calcium alginate and each type of inorganic particle was calculated from the respective surface energies and zeta potentials. Calculation results showed that the extent of physical interaction increased in the order of Al2O3, Fe2O3, kaolin and SiO2, with this order differing from that of adsorption capacity. Chemical interactions may also play an important role in the adsorption of alginate and the consequent combined fouling. High-resolution XPS scans revealed a slight shift of electron binding energies when alginate was adsorbed. PMID- 29035795 TI - Can poly-parameter linear-free energy relationships (pp-LFERs) improve modelling bioaccumulation in fish? AB - A wide range of studies have characterized different types of biosorbent, with regard to their interactions with chemicals. This has resulted in the development of poly-parameter linear free energy relationships (pp-LFERs) for the estimation of partitioning of neutral organic compounds to biological phases (e.g., storage lipids, phospholipids and serum albumins). The aims of this study were to explore and evaluate the influence of implementing pp-LFERs both into a one-compartment fish model and a multi-compartment physiologically based toxicokinetic (PBTK) fish model and the associated implications for chemical risk assessment. For this purpose, fish was used as reference biota, due to their important role in aquatic food chains and dietary exposure to humans. The bioconcentration factor (BCF) was utilized as the evaluation metric. Overall, our results indicated that models incorporating pp-LFERs (R2 = 0.75) slightly outperformed the single parameter (sp) LFERs approach in the one-compartmental fish model (R2 = 0.72). A pronounced enhancement was achieved for compounds with log KOW between 4 and 5 with increased R2 from 0.52 to 0.71. The minimal improvement was caused by the overestimation of lipid contribution and underestimation of protein contribution by the sp-approach, which cancelled each other out. Meanwhile, a greater improvement was observed for multi-compartmental PBTK models with consideration of metabolism, making all predictions fall within a factor of 10 compared with measured data. For screening purposes, the KOW-based (sp-LFERs) approach should be sufficient to quantify the main partitioning characteristics. Further developments are required for the consideration of ionization and more accurate quantification of biotransformation in biota. PMID- 29035796 TI - Characterization of iron and manganese minerals and their associated microbiota in different mine sites to reveal the potential interactions of microbiota with mineral formation. AB - Different environmental conditions such as pH and dissolved elements of mine stream induce precipitation of different minerals and their associated microbial community may vary. Therefore, mine precipitates from various environmental conditions were collected and their associated microbiota were analyzed through metagenomic DNA sequencing. Various Fe and Mn minerals including ferrihydrite, schwertmannite, goethite, birnessite, and Mn-substituted delta-FeOOH (delta-(Fe1 x, Mnx)OOH) were found in the different environmental conditions. The Fe and Mn minerals were enriched with toxic metal(loid)s including As, Cd, Ni and Zn, indicating they can act as scavengers of toxic metal(loid)s in mine streams. Under acidic conditions, Acidobacteria was dominant phylum and Gallionella (Fe oxidizing bacteria) was the predominant genus in these Fe rich environments. Manganese oxidizing bacteria, Hyphomicrobium, was found in birnessite forming environments. Leptolyngbya within Cyanobacteria was found in Fe and Mn oxidizing environments, and might contribute to Fe and Mn oxidation through the production of molecular oxygen. The potential interaction of microbial community with minerals in mine sites can be traced by analysis of microbial community in different Fe and Mn mineral forming environments. Iron and Mn minerals contribute to the removal of toxic metal(loid)s from mine water. Therefore, the understanding characteristics of mine precipitates and their associated microbes helps to develop strategies for the management of contaminated mine water. PMID- 29035797 TI - Effects of GAC layer on the performance of gravity-driven membrane filtration (GDM) system for rainwater recycling. AB - Gravity-driven membrane filtration (GDM) is promising for decentralized rainwater recycling, owing to low maintenance and energy consumption. However, the organic removal by GDM process is sometimes undesirable and the quality of the permeate cannot meet the standard of water reuse. To improve this, granular activate carbon (GAC) was added as a particle layer on the membrane surface of GDM system. Additionally, a system with sand addition and a system with no particle addition were trialed as comparisons, to study the combined effects of particle hindering and adsorption on the removal efficacy of organics and the development of permeate flux. Results showed that GDM with a GAC layer improved removal efficiency of organics by 25%, and that GAC enhanced removal of florescent compounds (e.g., aromatic proteins, tryptophan proteins and humics), compared with the other two systems. Additionally, the permeate flux in three systems stabilized after Day 25, and kept stable until the end of the operation. However, the presence of GAC layer decreased the level of stable flux (3.2 L/m2h) compared with the control system (4.5 L/m2h). The factors responsible for the lower flux and severe membrane fouling in GAC layer assisted system were the combined effects of particle and adsorption which led to a denser bio-fouling layer with higher amount of biomass and extracellular polymeric substances contents (proteins and polysaccharides). Resistance distribution analyses revealed that GAC layer mainly increased hydraulically reversible resistance (occupied 93%) of the total resistance, indicating that the flux could be recovered easily by simple physical cleaning. PMID- 29035798 TI - Sexual function and related factors in Iranian woman with epilepsy. AB - PURPOSE: Epileptic women are faced with many sexual challenges in their life due to medical and non-medical factors. The present study was conducted to assess sexual function in epileptic women and its related factors. METHOD: The present cross-sectional study was conducted on 196 epileptic married women of reproductive age who were members of the Iranian Epilepsy Association and were selected continuously over six months through convenience sampling. The data collection tools included the Female Sexual Function Index (FSFI) and questions about the causes of sexual dysfunction. The statistical tests including: Chi square, t-test, one-way ANOVA, linear and logistic regression. RESULTS: According to the results, 74.5% of the participants suffered from sexual dysfunction and scored the lowest in terms of the orgasm and sexual satisfaction dimensions. The factors associated with sexual dysfunction included age over 40, poor education, more than 15 years of marriage, poor economic status, history of infertility and irregular menstruation, several seizures per month, nocturnal seizures, triple or multiple drug therapies and not using anticonvulsant drugs that have no effect on the liver enzymes. From participants' perspective, the most common causes of sexual dysfunction include anxiety and stress, emotional problems with the spouse, dissatisfaction with the experience of unwanted sex and the type of drugs used. CONCLUSIONS: Since the incidence of sexual dysfunction in epileptic women is high and multifactorial, it is recommended for experts and health service providers to not only seek to better control the patients' seizures, but also assess them in terms sexual function. PMID- 29035799 TI - Use of the endometriosis fertility index in daily practice: A prospective evaluation. AB - OBJECTIVE: To perform a prospective evaluation of postoperative fertility management using the endometriosis fertility index (EFI). STUDY: This prospective non-interventional observational study was performed from January 2013 to February 2016 in a tertiary care university hospital and an assisted reproductive technology (ART) centre. In total, 196 patients underwent laparoscopic surgery for endometriosis-related infertility. Indications for surgery included pelvic pain (dysmenorrhoea, and/or deep dyspareunia), abnormal hysterosalpingogram, and failure to conceive after three or more superovulation cycles with or without intra-uterine insemination. Multidisciplinary fertility management followed the surgical diagnosis and treatment of endometriosis. Three postoperative options were proposed to couples based on the EFI score: EFI score <=4, ART (Option 1); EFI score 5-6, non-ART management for 4-6 months followed by ART (Option 2); or EFI score >=7, non-ART management for 6-9 months followed by ART (Option 3). The main outcomes were non-ART pregnancy rates and cumulative pregnancy rates according to EFI score. Univariate and multivariate analyses with backward stepwise logistic regression were used to explain the occurrence of non-ART pregnancy after surgery for women with EFI scores >=5. Adjustment was made for potential confounding variables that were significant (p<0.05) or tending towards significance (p<0.1) on univariate analysis. RESULTS: The cumulative pregnancy rate was 76%. The total number of women and pregnancy rates for Options 1, 2 and 3 were: 26 and 42.3%; 56 and 67.9%; and 114 and 87.7%, respectively. The non-ART pregnancy rates for Options 1, 2 and 3 were 0%, 30.5% and 48.2%, respectively. The ART pregnancy rates for Options 1, 2 and 3 were 50%, 60.6% and 80.3%, respectively. The mean time to conceive for non-ART pregnancies was 4.2 months. The benefit of ART was inversely correlated with the mean EFI score. On multivariate analysis, the EFI score was significantly associated with non-ART pregnancy (odds ratio 1.629, 95% confidence interval 1.235-2.150). CONCLUSION: In daily prospective practice, the EFI was useful for subsequent postoperative fertility management in infertile patients with endometriosis. PMID- 29035800 TI - Exploring mechanisms of change in schema therapy for chronic depression. AB - BACKGROUND AND OBJECTIVES: The underlying mechanisms of symptom change in schema therapy (ST) for chronic major depressive disorder (cMDD) have not been studied. The aim of this study was to explore the impact of two potentially important mechanisms of symptom change, maladaptive schemas (proxied by negative idiosyncratic core-beliefs) and the therapeutic alliance. METHODS: We drew data from a single-case series of ST for cMDD. Patients with cMDD (N = 20) received on average 78 repeated weekly assessments over a course of up to 65 individual sessions of ST. Focusing on repeated assessments within-individuals, we used mixed regression to test whether change in core-beliefs and therapeutic alliance preceded, followed, or occurred concurrently with change in depressive symptoms. RESULTS: Changes in core-beliefs did not precede but were concurrently related to changes in symptoms. Repeated goal and task agreement ratings (specific aspects of alliance) of the same session, completed on separate days, were at least in part associated with concurrent changes in symptoms. LIMITATIONS: By design this study had a small sample-size and no control group. CONCLUSIONS: Contrary to what would be expected based on theory, our findings suggest that change in core beliefs does not precede change in symptoms. Instead, change in these variables occurs concurrently. Moreover, alliance ratings seem to be at least in part colored by changes in current mood state. PMID- 29035801 TI - Systematic review with meta-analysis: performance of dried blood spots for hepatitis C antibodies detection. AB - OBJECTIVES: Dried blood spots (DBS) specimens can be used for hepatitis C virus (HCV) infection screening in cases where serum specimens are difficult to obtain. However, uncertainties surround the sensitivity and specificity of DBS for HCV antibodies (anti-HCV) serology testing. We aimed to evaluate the accuracy of DBS use to screen for HCV infection. STUDY DESIGN: We carried out a systematic review and meta-analysis. METHODS: Medline and EMBASE databases were searched for articles published between 1989 and November 2016. We included studies comparing DBS to plasma/serum specimens to detect anti-HCV in adults. Two authors extracted data and assessed the quality of the studies using an adapted standards for reporting diagnostic accuracy studies (STARD) and independently checked the data for accuracy. Meta-analysis was computed with the bivariate and the hierarchical summary receiver-operating characteristic models. RESULTS: Twelve studies (3307 specimens) were analyzed, where 11 of them evaluated the anti-HCV using enzyme immunoassays (EIAs), and the remaining one used rapid diagnostic tests. The studies were mostly case-controls (83.3%) and from developed countries (66.7%). The overall pooled sensitivity (95% confidence interval; CI) and specificity (95% CI) of DBS to detect anti-HCV was 98.1% (96.1-99.1%) and 99.7% (98.9-99.9%), respectively. In studies using EIAs, the pooled sensitivity and specificity were 97.3% (94.3-98.8%) and 99.6% (98.5-99.9%), respectively. Considering only studies using EIAs, sensitivity analysis excluding one study carried out in people who inject drugs showed the pooled sensitivity of 97.8% (96.2-98.8%) and specificity of 99.5% (98.5-99.9%). CONCLUSIONS: In testing for anti-HCV by means of EIAs, the efficacy of DBS is found to be similar or slightly lower than that of serum specimens. However, the risk of finding negative and positive results that are both false when using DBS remains present. Therefore, further work including optimal storage and processing methodologies are recommended. This is to help establish consensus guidelines for use of DBS specimens for anti-HCV screening. PMID- 29035802 TI - Magnetic iron oxide/phenylsulfonic acid: A novel, efficient and recoverable nanocatalyst for green synthesis of tetrahydrobenzo[b]pyrans under ultrasonic conditions. AB - A novel magnetic iron oxide supported phenylsulfonic acid (Fe3O4@Ph-SO3H) with core-shell structure is prepared, characterized and applied as efficient nanocatalyst for green synthesis of tetrahydrobenzo[b]pyrans. The Fe3O4@Ph-SO3H was prepared via modification of magnetic iron oxide cores with 1,4 bis(triethoxysilyl)benzene (BTEB) followed by sulfonation of aromatic rings. The Fe3O4@Ph-SO3H was characterized using FTIR, TGA, PXRD, SEM, TEM, VSM and EDX techniques. This was effectively applied for synthesis of tetrahydrobenzo[b]pyrans in water as green solvent at room temperature under ultrasonic conditions. The products were obtained in high to excellent yields at short times. The recoverability, reusability and durability of this nanocatalyst were studied under applied reaction conditions. PMID- 29035803 TI - Untapped conversion of plastic waste char into carbon-metal LDOs for the adsorption of Congo red. AB - A low-cost novel carbon-metal double layered oxides (C/MnCuAl-LDOs) nano adsorbent was synthesized by co-precipitation, for the adsorption of Congo red (CR), using modified carbon derived from pyrolysis of polystyrene (PS) plastic waste. The synthesized C/MnCuAl-LDOs has a crystalline structure with a high surface area of 60.43m2/g and pore size of 99.85A. Adsorption of CR using all prepared adsorbents from aqueous solution under equilibrium and kinetic conditions were evaluated against different values of the pH (4-10), initial CR concentrations (25-250mg/g), contact time (0-310min) and temperature (30-50 degrees C). The obtained results revealed that C/MnCuAl-LDOs showed maximum adsorption capacity for CR among all the used adsorbents. The optimum equilibrium time was 180min, whereas acidic medium (pH 4.5) favored the maximum adsorption of CR up to 317.2mg/g on C/MnCuAl-LDOs. The adsorption kinetics followed the pseudo second-order model, whereas Freundlich adsorption isotherm fitted best to obtained data in comparison to Langmuir adsorption isotherm. The results suggested that C/MnCuAl-LDOs is an efficient material for the removal of organic pollutants from the wastewater. PMID- 29035805 TI - Velocity of lateral drying fronts in film formation by drying of colloidal dispersions. A 2D simulation. AB - Drying of colloids is always heterogeneous and proceeds by progression of drying fronts in various directions at various velocities. The fundamental mechanisms at the origin of appearance and motion of drying fronts are still not totally understood. This article addresses these questions in the case of lateral drying fronts by using the new simulation tool based on cellular automata we recently developed (Langmuir 2015 and 2017). For the first time, a 2D simulation is proposed. Silica dispersions were used as model colloids to test the simulation. Film profiles were measured during drying by optical profilometry as well as front velocities by image processing. In the cases of non-circular deposits (squares and rectangles), drying fronts in the plane of the film (x,y plane, x being the longest side in the case of a rectangle) do not move at the same speed along sides and diagonals, the velocity order being diagonal >x (longest side) >y (shortest side). The velocity contrast (difference between x and y sides) increases with the aspect ratio of the rectangle. This behavior is explained and accounted for by the 2D simulation presented in this article. Experimental results reasonably well validate the simulation. PMID- 29035804 TI - Green electrospun and crosslinked poly(vinyl alcohol)/poly(acrylic acid) composite membranes for antibacterial effective air filtration. AB - Air pollution has become a major environmental concern given the ever increasing levels of particulate matter (PM) and the increased in treatment-resistant bacterial and viral strains. Major efforts are therefore required into the development of air filtration and purification technology as well as novel, alternative antiviral and antibacterial treatment modalities. Here, we report an environmentally friendly method for the generation of multifunctional poly(vinyl alcohol)/poly(acrylic acid) (PVA-PAA) composite membranes via green electrospinning and thermal crosslinking. Superhydrophobic silica nanoparticles were then incorporated into the fibers resulting in a rough surface, after which AgNO3 was introduced, resulting in the formation of Ag nanoparticles through UV reduction. The PVA-PAA-SiO2-Ag NPs membranes were found to possess high air filtration performance (with >98% filtration efficiency for PM2.5) as well as potent antibacterial and antiviral activities. The green synthesis approach avoids the use of hazardous organic solvents, thereby bypassing any potential toxicity concerns caused by organic solvent residues. These newly designed PVA PAA-SiO2 NPs-Ag NPs nanofibrous membranes with many superior features (e.g. high filtration efficiency, high tensile strength, biological compatibility, and antibacterial properties) can be applied in eco-friendly air filtration materials, in particular for personal air filtration devices. PMID- 29035806 TI - Reduced graphene oxide/Mn3O4 nanohybrid for high-rate pseduocapacitive electrodes. AB - Nanostructure Mn3O4 is a promising pseudocapacitive electrode material due to its low cost, environmental compatibility, and intrinsically high capacity. However, the poor electrical conductivity and low accessible active sites limit its performance. We report that one-dimensional (1D) nanoscale Mn3O4 has been coupled with reduced graphene oxide (RGO) to fabricate RGO/Mn3O4 nanohybrid (MORGO) as a pseudocapacitive electrode material with high capacitance. The selective reduction of graphene oxide (GO) in Mn3O4/graphene oxide (MOGO) to reduced graphene oxide (RGO) while sustaining the unchanged oxidation state of manganese is the key to obtain MORGO. Specific surface area of MORGO is 14 times higher than pure Mn3O4, and the charge transfer resistance decreases 3.2 times. These enhanced properties lead to excellent specific capacitance of 538 F g-1 at the current density of 0.1 A g-1, and of 472 F g-1 at 10 A g-1 in 1 M Na2SO4 aqueous electrolyte. The capacitance retained 89% after 2000 cycles, demonstrating its excellent long-term cycling stability. PMID- 29035807 TI - Exterior foam drainage and flow regime switch in the foams. AB - The three-dimensional flow in exterior microscale foams including the Plateau borders and nodes are investigated by solving Navier-stoke and continuity equations. First, we show the effect of the interfacial mobility and film thickness on the dimensionless mean velocity of the exterior foams. The velocity of the exterior node-PB is similar to the velocity of single exterior Plateau border. Next, we calculated the pressure difference of each element separately and obtained their hydraulic resistances. We found out that the hydraulic resistance of the exterior Plateau border is always larger than the hydraulic resistance of the exterior node, resulting in a consistent channel-dominated regime. However, For the interior foams, there is a value of interfacial mobility where the node's resistance overcomes the channel's resistance, resulting in a switch from the channel-dominated regime to a node-dominated regime. This switching point is dependent on the relative length of the channels. Hence, we obtained an approximation of the interfacial mobility switching points versus the relative length of channels. Moreover, in a form of approximation master curve, we showed the dependence of mean velocities of foams and channels' hydraulic resistances to a dimensionless combined parameter of Lambda-1 that contains interfacial mobility and film thickness together. For both the exterior and interior nodes, the velocity and hydraulic resistance are almost constant for various Boussinesq numbers since interfacial mobility has a marginal effect on node's flow. PMID- 29035808 TI - NH2-coordinately immobilized tris(8-quinolinolato)iron onto the silica coated magnetite nanoparticle: Fe3O4@SiO2-FeQ3 as a selective Fenton-like catalyst for clean oxidation of sulfides. AB - A green, robust and eco-friendly procedure for the oxidation of aromatic organic sulfides to sulfones using H2O2 catalyzed by NH2-coordinately immobilized tris(8 quinolinolato)iron onto the silica coated magnetite (Fe3SiO6) has been developed. Physicochemical properties of the resulting nanoparticles were investigated by means of techniques including X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, vibrating sample magnetometer, atomic adsorption spectroscopy and FT-IR spectroscopy. The catalytic activity of sulfides oxidation showed that this atom-economical protocol provided great yields of various sulfones and allowed the sulfide function reaction conducting under the mild conditions thus to prevent the sulfide being over-oxidized to sulfoxides. The Fe3O4@SiO2-FeQ3 catalysts are magnetically separable and kept stable after recycling for 7 consecutive runs without detectable activity loss. PMID- 29035809 TI - Synthesis of hollow NiCo2O4 nanospheres with large specific surface area for asymmetric supercapacitors. AB - Hollow micro-/nanostructured electrode materials with high active surface area are highly desirable for achieving outstanding electrochemical properties. Herein, we report the successful synthesis of hierarchical hollow NiCo2O4 nanospheres with high surface area as electrode materials for supercapacitors. Electrochemical measurements prove that such electrode materials exhibit excellent electrochemical behavior with a specific capacitance reaching 1229 F/g at 1 A/g, remarkable rate performance (~83.6% retention from 1 to 25 A/g) and good cycling performance (86.3% after 3000 cycles). Furthermore, the asymmetric supercapacitor is fabricated with hollow NiCo2O4 nanospheres electrode and activated carbon (AC) electrode as the positive and negative, respectively. This device exhibits a maximum energy density of 21.5 W h/kg, excellent cycling performance and coulombic efficiency. The results show that hollow NiCo2O4 nanosphere electrode is a promising electrode material for the future application in high performance supercapacitors. PMID- 29035810 TI - Traditional bullying and cyberbullying: Differences in emotional problems, and personality. Are cyberbullies more Machiavellians? AB - Few studies have examined differences in emotional problems and personality of traditional bullies and cyberbullies. The present study aimed to determine whether those engaged in cyberbullying differ in emotional problems, and personality from those engage in traditional bullying perpetration. An Argentinean sample of 898 high school students was recruited (56% female; mean age = 15.2 SD = 1.6). Adolescents completed measures of traditional bullying, cyberbullying, self-esteem, anxiety, depression, and personality. A 6% were traditional bullies; 8%, cyberbullies; and 4% were involved in both forms; the remainders were non involved. Results indicated that cyberbullies showed less depression and anxiety than traditional bullies. Also, cyberbullies scored low in neuroticism and high in agreeableness compared to traditional bullies. The results suggest that cyberbullies are characterized by an emotional and personality profile different from traditional bullies. In the discussion we analyze the implications of these results. PMID- 29035811 TI - Moving towards fast characterization of polymorphic drugs by solid-state NMR spectroscopy. AB - Solid-state nuclear magnetic resonance (SS-NMR) spectroscopy has become a common technique to study polymorphism in pharmaceutical solids at high-resolution. However, high-throughput application of high resolution SS-NMR spectroscopy is severely limited by the long 1H spin-lattice relaxation (T1) that is common to solid phase compounds. Here, we demonstrate the use of paramagnetic relaxation reagents such as chromium (III) acetylacetonate (Cr(acac)3) and nickel (II) acetylacetonate (Ni(acac)2) for fast data acquisition by significantly reducing the T1 value for carbamazepine Forms I, II, III, and dihydrate, cimetidine Forms A and B, nabumetone Form I, and acetaminophen Form I polymorphs. High resolution 13C cross-polarization and magic angle spinning were used to measure T1 values for each polymorph. In order to confirm the absence of polymorphic transitions during SS-NMR experiments, powder x-ray diffraction was implemented. The amount of chromium ions incorporated by the recrystallization process was quantified by using inductively coupled plasma optical emission spectroscopy. Our results suggest that the paramagnetic ions added to the polymorphs do not affect the polymorphic transformation or the quality of NMR spectra. We believe that this successful demonstration of fast data collection will enable high-throughput utilization of SS-NMR techniques to study polymorphic solids and could set the groundwork for NMR crystallography studies. PMID- 29035812 TI - Combined GWAS and LDLA approaches to improve genome-wide quantitative trait loci detection affecting carcass and meat quality traits in pig. AB - Many QTL affecting meat quality and carcass traits have been reported. However, in most of the cases these QTL have been detected in non-commercial populations. Therefore, a family structured population of 457 F2 pigs issued from an inter cross between 2 commercial sire lines was used to detect QTL affecting meat quality and carcass traits. All animals were genotyped using the Illumina PorcineSNP60 BeadChip platform. Genome-wide association studies were used in combination with linkage disequilibrium-linkage analysis to identify QTL. A total of 32 QTL were detected. Nine of these QTL exceeded the genome-wide 5% significance threshold. We detected 18 QTL affecting carcass composition traits and 16 QTL affecting meat quality traits. Using post-QTL bioinformatics analysis we highlighted 26 functional candidate genes related to fatness, muscle development, meat color and meat pH. Finally, our results shed light on the advantage of using different QTL detection methodologies to get a global overview of the QTL present in the studied population. PMID- 29035813 TI - Energy loss and impact of various stunning devices used for the slaughtering of water buffaloes. AB - Stock management of the Swiss water buffalo livestock results in the slaughtering of about 350 animals per year. As the stunning of water buffaloes still is an unresolved issue, we investigated the terminal ballistics of currently used perforating stunning devices. Cartridge fired captive bolt devices, handguns and a bullet casing gun were tested in a shooting steep by firing on bisected heads, forehead plates and soap blocks. Energy loss of captive bolts confirmed their inadequacy when used for heavy water buffaloes, notably adult males. As for the free projectiles, ballistics revealed that beyond the impact energy, bullet deformation has a strong impact on the outcome. Light 9mm Luger or .38 Spl bullets as well as large deformable .44 Rem. Magnum bullets should be avoided in favor of heavier .357 Magnum deformation ammunition. These data have been translated into the development of a new stunning device for water buffaloes meeting both animal welfare and occupational safety requirements. PMID- 29035814 TI - Enzyme engineering: reaching the maximal catalytic efficiency peak. AB - The practical need for highly efficient enzymes presents new challenges in enzyme engineering, in particular, the need to improve catalytic turnover (kcat) or efficiency (kcat/KM) by several orders of magnitude. However, optimizing catalysis demands navigation through complex and rugged fitness landscapes, with optimization trajectories often leading to strong diminishing returns and dead ends. When no further improvements are observed in library screens or selections, it remains unclear whether the maximal catalytic efficiency of the enzyme (the catalytic 'fitness peak') has been reached; or perhaps, an alternative combination of mutations exists that could yield additional improvements. Here, we discuss fundamental aspects of the process of catalytic optimization, and offer practical solutions with respect to overcoming optimization plateaus. PMID- 29035815 TI - Genipin inhibits allergic responses in ovalbumin-induced asthmatic mice. AB - Genipin is a natural compound isolated from the fruit of Gardenia jasminoides with various pharmacological effects. In this study, we investigated whether genipin effectively alleviates allergic responses in a murine model of ovalbumin (OVA)-induced asthma. The mice were administered an intraperitoneal injection of OVA on day 0 and 14 to boost the immune response; genipin was then administered from day 18 to 23 by oral gavage. On days 21 to 23, mice were OVA-challenged using am ultrasonic nebulizer, and airway hyperresponsiveness (AHR) was determined on day 24 by plethysmography. Genipin significantly reduced the inflammatory cell count in bronchoalveolar lavage fluids (BALF) and AHR, which were accompanied by lower interleukin-5 (IL-5), IL-13 and OVA-specific immunoglobulin (Ig) E levels in the BALF or serum from OVA-induced asthmatic mice. In histology, genipin significantly decreased airway inflammation and mucus hypersecretion in OVA-induced asthmatic mice. Additionally, genipin inhibited OVA induced increases in the expression of inducible nitric oxide synthase and cyclooxygenase-2 proteins. Further, genipin reduced the activity and protein levels of matrix metalloproteinase-9 in lung tissue from OVA induced asthmatic mice. Overall, genipin effectively alleviated the asthmatic inflammatory response in an OVA-induced asthmatic model. Therefore, our results suggest that genipin has therapeutic potential for treating asthma. PMID- 29035816 TI - Docosahexaenoic acid attenuates carbon tetrachloride-induced hepatic fibrosis in rats. AB - Fish oil containing docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) has been reported to exert beneficial health effects, including hepatoprotection. However, the effect of DHA alone has not been well studied, and the mechanism is not fully understood. In the present study, we reported the protective effect of DHA on carbon tetrachloride (CCl4) induced hepatic fibrosis. Compared with the control group, the CCl4 group showed hepatic damage as evidenced by histological changes and elevation in serum transaminase activity, fibrosis, inflammation and oxidative stress levels. These pathophysiological changes were attenuated by chronic DHA supplementation. The anti-fibrotic effect of DHA was accompanied by reductions in gene and protein expression of alpha-smooth muscle actin (alpha SMA), fibronectin, and collagen in the liver tissue. DHA also attenuated CCl4 induced elevation of lipid peroxidation (LPO) and decrease of glutathione (GSH)/oxidized GSH (GSSG) ratio. The upregulated inflammatory cytokines tumor necrosis factor (TNF)-alpha, interferon (IFN)-gamma and interleukin (IL)-6 by CCl4 were also ameliorated by DHA. Peroxisome proliferator-activated receptor (PPAR)-gamma upregulation and type I and II receptors for transforming growth factor (TGF)-beta (Tbeta-RI and Tbeta-RII) and platelet-derived growth factor (PDGF)-beta receptor (PDGF-betaR) downregulation on both mRNA and protein levels were observed by DHA treatment compared to CCl4 group. Moreover, in vitro study showed that DHA inhibited HSC activation, being associated with elevating PPARgamma level and reducing the phosphorylation levels of Smad2/3 and ERKs, which are downstream intermediates of TGFbeta and PDGF receptors, respectively. Taken together, the hepatoprotective, anti-inflammatory and anti-fibrotic effects of DHA appeared to be multifactorial. Further, one of the mechanisms of the anti fibrotic effect of chronic DHA supplementation is probably through PPARgamma signaling to interrupt TGFbeta/Smad and PDGF/ERK pathways in HSCs. PMID- 29035817 TI - Electroformation of double vesicles using an amplitude modulated electric field. AB - Double vesicles are a promising model to mimic eukaryotic cells, yet effective preparation methods with high yields and stable double vesicles are scarce. Previously reported electroformation methods were mainly based on sinusoidal AC fields. Using a combination of sinusoidal and amplitude modulated (AM) electric fields lipid double vesicles could be produced for the first time by a simple electroformation process. First lipid domes formed in a sinusoidal AC field. The domes grew into tubes during the subsequent application of an AM field. These tubes deformed into double vesicles to minimize their free energy in accordance with the area-difference-elasticity model. Two forces are involved to explain the mechanism behind tube formation. The pulling force (F) is responsible to drag the domes into tubular vesicles, but has to overcome a critical force (Fc). The most important parameters of the electrical field were explored systematically. In our work, a maximum yield for double vesicles of 63% was achieved. These vesicles proved to be stable for one week at least. Hence our method could provide a way to fabricate novel cell models. PMID- 29035818 TI - Skin-penetrating polymeric nanoparticles incorporated in silk fibroin hydrogel for topical delivery of curcumin to improve its therapeutic effect on psoriasis mouse model. AB - A poor percutaneous penetration capability for most topical anti-inflammatory drugs is one of the main causes compromising their therapeutic effects on psoriatic skin. Even though curcumin has shown a remarkable efficacy in the treatment of psoriasis, its effective penetration through the stratum corneum is still a major challenge during transdermal delivery. The aim of our study was to design skin-permeating nanoparticles (NPs) to facilitate delivery of curcumin to the deeper layers of the skin. A novel amphiphilic polymer, RRR-alpha-tocopheryl succinate-grafted-epsilon-polylysine conjugate (VES-g-epsilon-PLL) was synthesized and self-assembled into polymeric nanoparticles. The nanoparticles of VES-g-epsilon-PLL exhibiting an ultra-small hydrodynamic diameter (24.4nm) and a positive Zeta potential (19.6mV) provided a strong skin-penetrating ability in vivo. Moreover, curcumin could effectively be encapsulated in the polymeric nanoparticles with a drug loading capacity of 3.49% and an encapsulating efficiency of 78.45%. In order to prolong the retention time of the ultra-small curcumin-loaded nanoparticles (CUR-NPs) in the skin, silk fibroin was used as a hydrogel-based matrix to further facilitate topical delivery of the model drug. In vitro studies showed that CUR-NPs incorporated in silk fibroin hydrogel (CUR NPs-gel) exhibited a slower release profile of curcumin than the plain CUR-gel, without compromising the skin penetration ability of CUR-NPs. In vivo studies on miquimod-induced psoriatic mice showed that CUR-NPs-gel exhibited a higher therapeutic effect than CUR-NPs as the former demonstrated a more powerful skin permeating capability and a more effective anti-keratinization process. CUR-NPs gel was therefore able to inhibit the expression of inflammatory cytokines (TNF alpha, NF-kappaB and IL-6) to a greater extent. In conclusion, the permeable nanoparticle-gel system may be a potential carrier for the topical delivery of lipophilic anti-psoriatic drugs. PMID- 29035819 TI - Preparation of envelope-type lipid nanoparticles containing gold nanorods for photothermal cancer therapy. AB - The use of gold nanorods (AuNRs) that produce heat in response to near infrared (NIR) irradiation is an attractive approach to cancer photothermal therapy. AuNRs are usually prepared by using a highly toxic detergent: cetyltrimethylammonium bromide (CTAB). Thus, the removal of CTAB from the reaction mixture, and further stabilization of the surface of the AuNRs is required. In the present study, AuNRs were encapsulated in a multifunctional envelope-type nano device (AuNR MEND) formed with an SS-cleavable and pH-activated lipid-like material. In the process of encapsulation, AuNRs were first stabilized with bovine serum albumin (AuNR-BSA), and then further encapsulated in the lipid envelope by the ethanol dilution method. The in vitro photothermal cytotoxicity of AuNR-MEND was further demonstrated on 4T1 breast cancer cells. After NIR radiation, the temperature of the medium was increased to approximately 60 degrees C, and cell viability was drastically decreased to approximately 11%. However, this cytotoxic effect cannot simply be explained by medium heating. It therefore appears that intracellular delivery of the AuNRs is a key factor for achieving a high degree of cytotoxicity. Dose dependent cytotoxicity data revealed that a higher dose of AuNR-MEND resulted in the complete destruction of the cells when they were subjected to NIR irradiation, while the cell survival rate reached a plateau at 30% in the case of AuNR-BSA. Apoptosis was induced after treatment with the nanoparticles. AuNR-MEND showed superior cellular uptake activity over AuNR-BSA. Thus, delivering AuNR by means of functionalized lipid nanoparticles represents a promising approach to induce NIR-triggered apoptosis. PMID- 29035820 TI - Real-time monitoring of amyloid fibrillation by electrical impedance spectroscopy. AB - Electrical impedance spectroscopy (EIS) appears a promising label-free methodology for the investigation of processes related to the aggregation of macromolecules in solution. Here, we explore the EIS technique as a convenient tool for studying the irreversible aggregation of human insulin and describing its corresponding fibrillation kinetics. The in situ measurement of the electrical response of pure insulin solutions at 60 degrees C allows for the real time monitoring of the protein fibrillation as a function of the incubation time. The fitting of the EIS data through an equivalent circuit based on a constant phase element provides a simple set of electric parameters whose abrupt changes can be associated to transitions occurring in the organization of the macromolecules. For establishing the reliability of the method proposed, we have compared the protein aggregation profile collected from the EIS data to that obtained from a conventional fluorescence methodology where Thioflavin T (ThT) is used as a dye probe. The description of the fibrillation process is quite similar in both cases, since characteristic times of the same order were found for the consecutive processes associated to the initial lag phase of insulin fibrillation, to the rapid growth of amyloidal aggregates and to the final saturation step. Our results suggest that in situ EIS can be considered as a promising approach for the real-time label-free monitoring of protein fibril formation. PMID- 29035821 TI - Neuronal nitric oxide synthase is involved in CB/TRPV1 signalling: Focus on control of hippocampal hyperexcitability. AB - Cannabinoids (CB), transient receptors potential vanilloid type 1 (TRPV1) and nitric oxide (NO) were found to be interlinked in regulating some neuronal functions such as membrane excitability and synaptic transmission. TRPV1 play a fundamental role since it represents a synaptic target for CB that triggers several downstream cellular pathways. In this regard, recent evidence report that TRPV1 could influence NO production by modulating neuronal NO synthase (nNOS) activity. In the present research, we pointed to manipulate nNOS function to assess its role on TRPV1 signalling in hyperexcitability conditions elicited in the dentate gyrus of hippocampal formation. The activation of TRPV1 receptors is achieved by administering capsaicin (CAP), the main TRPV1 agonist exerting a widely reported proepileptic effects. In order to focus on nNOS activity, we used 7-nitroindazole (7NI), nNOS inhibitor, or L-Arginine (ARG), NO precursor, before CAP. Then, the effects of each of these co-administration protocols were tested in presence of WIN 55,212, a CB agonist. The study was conducted in rats using an electrically-induced acute model of temporal lobe hyperexcitability, the Maximal Dentate Activation (MDA), considering different indicators of paroxysmal activity such as: percentage of responses to electrical stimulation, MDA discharge parameters and threshold current intensity for MDA. Data showed that the excitatory effects of CAP were reduced by 7NI and enhanced by ARG pretreatments, respectively. In addition, the co-treatment with WIN counteracted CAP effect, substantially resulting in an inhibitory effect. Finally, the CAP-WIN functional interaction appeared to be modulated by interfering with NO signalling since 7NI increased the inhibitory effect induced by the co-treatment with CAP and WIN, whereas ARG reduced it. These findings suggest that nNOS function could be involved in the CB/TRPV1 signalling and shed light on a new putative cannabinoid related control of neuronal hyperexcitability in the hippocampus. PMID- 29035822 TI - Intraoperative direct cortical stimulation motor evoked potentials: Stimulus parameter recommendations based on rheobase and chronaxie. AB - OBJECTIVE: To determine optimal interstimulus interval (ISI) and pulse duration (D) for direct cortical stimulation (DCS) motor evoked potentials (MEPs) based on rheobase and chronaxie derived with two techniques. METHODS: In 20 patients under propofol/remifentanil anesthesia, 5-pulse DCS thenar MEP rheobase and chronaxie with 2, 3, 4 and 5ms ISI were measured by linear regression of five charge thresholds at 0.05, 0.1, 0.2, 0.5 and 1msD, and estimated from two charge thresholds at 0.1 and 1msD using simple arithmetic. Optimal parameters were defined by minimum threshold energy: the ISI with lowest rheobase2*chronaxie, and D at its chronaxie. Near-optimal was defined as threshold energy <25% above minimum. RESULTS: The optimal ISI was 3 or 4 (n=7 each), 2 (n=4), or 5ms (n=2), but only 4ms was always either optimal or near-optimal. The optimal D was ~0.2 (n=12), ~0.1 (n=7) or ~0.3ms (n=1). Two-point estimates closely approximated five point measurements. CONCLUSIONS: Optimal ISI/D varies, with 4ms/0.2ms being most consistently optimal or near-optimal. Two-point estimation is sufficiently accurate. SIGNIFICANCE: The results endorse 4ms ISI and 0.2msD for general use. Two-point estimation could enable quick individual optimization. PMID- 29035823 TI - Ratiometric drug delivery using non-liposomal nanocarriers as an approach to increase efficacy and safety of combination chemotherapy. AB - The observation that different drug ratios of the same drug combination can lead to synergistic or antagonistic effects when tested against the same cancer cell line in vitro gave rise to a new trend, the ratiometric delivery. This strategy consists of co-encapsulating a specific synergistic ratio of a drug combination into a nanocarrier so that synergism observed in vitro will be faithfully translated to in vivo, optimizing combination therapy. In this review we focus on how to quantify synergism in vitro, followed by how this affected the evolution of nanocarriers culminating in the ratiometric delivery, and finally we summarize the results of the non-liposomal formulations that were built upon this concept. PMID- 29035824 TI - Knockdown of Diaph1 expression inhibits migration and decreases the expression of MMP2 and MMP9 in human glioma cells. AB - As the most common primary central nervous system tumor, glioma is characterized by high levels of mortality and migration. Unclear boundary with normal brain tissue results in poor treatment. The mammalian diaphanous-related formin 1 (Diaph1) which belongs to formin-homology protein family, is a target of RhoA and involved in a number of actin-related biological processes, which abnormally expressed in pathological conditions in a number of tumors. Immunohistochemical analysis showed that Diaph1 was overexpressed in glioma tissues compared with normal human brain tissue. Diaph1 gene silencing RNA interference (RNAi) significantly inhibited the migratory activity of human glioma cell lines U87 and U251. Moreover, data obtained from qRT-PCR and Western-blot analysis showed that the mRNA and protein expression of matrix metalloproteinase2 and 9 (MMP2 and MMP9) was significantly suppressed in these Diaph1 knockdown cell lines, as well as gelatin zymography analysis revealed that the activity of MMP2 and MMP9 in conditioned medium was markedly decreased. In conclusion, our data demonstrate that Diaph1 is highly expressed in human glioma, plays a significant role in glioma cell migration, and can influence the expression and activity of MMP2 and MMP9 indirectly in human glioma cell lines U87 and U251. We provide a theoretical basis for further experimental studies and Diaph1 using on glioma therapy. PMID- 29035825 TI - Effect of a combination of mometasone furoate, levofloxacin, and retinyl palmitate with an in situ gel-forming nasal delivery system on nasal mucosa damage repair in an experimental rabbit model. AB - BACKGROUND: In this study a combination of Mometasone Furoate (MF)+Levofloxacin hemihydrate (LH)+Retinyl palmitate (RP) with an in situ gel-forming delivery system was evaluated at different stages of nasal mucosal damage repair in a rabbit maxillary sinus model. METHODS: In this study, 28 rabbits were included and assigned randomly to four groups. In all rabbits, a standard ostium was opened in the medial wall of the maxillary sinus by using a drill. Two different subsequently prepared gels with an in situ gel-forming delivery system were used. Of these 14 nasal cavities, combination 1 (active combination) was applied daily to 5, combination 2 (placebo) to 5, while 4 did not receive any pharmaceutical treatment. The diameter of the ostium was measured. Histopathological assessment was performed. RESULTS: After 2, 3 and 4 weeks, the ostium diameter was significantly wider in the group where gel 1 had been applied compared to both the placebo group and control group. In the group treated with gel 1, after 2, 3 and 4 weeks the presence of superficial cilia was significantly greater, surface epithelium significantly less. In the 4th week, histologic scores for fibroblastic proliferation and vascular proliferation in the group treated with gel 1 were better than in either the control group or the placebo group. With gel 1, chronic inflammation parameters were also significantly lower than in the other groups. CONCLUSION: The MF+LH+RP mixture with an in situ gel-forming nasal delivery system applied for wound healing after FESS prevents the formation of stenosis and is favorable for proper wound healing. PMID- 29035826 TI - Effects of gallic acid on hemodynamic parameters and infarct size after ischemia reperfusion in isolated rat hearts with alloxan-induced diabetes. AB - Diabetic rats are more susceptible to myocardial ischemia-reperfusion injury than control rats. The aim of the present study was to evaluate the cardioprotective effect of gallic acid (GA) on isolated rat hearts with alloxan-induced diabetes mellitus. Adult male Sprague-Dawley rats were divided randomly into three groups: control, untreated diabetic and diabetic animals treated with (GA, 25mg/kg). Diabetes was induced by 120mg/kg alloxan injection. Eight weeks after GA administration, the hearts were isolated and exposed to myocardial ischemia reperfusion. The body weight, blood glucose, hypertrophy index, left ventricular function, infarct size, cardiac markers and oxidative stress were measured. In the diabetic group, body weight, cardiac contractility (+/-dp/dt), glutathione peroxidase (GPx) level (p<0.001), left ventricular developed pressure (LVDP), rate pressure product (RPP), superoxide dismutase (SOD) and catalase (CAT) levels (p<0.01) as well as the heart weight (p<0.05) significantly reduced. However, blood glucose, infarct size, hypertrophy index, lactate dehydrogenase (LDH), creatine kinase-MB (CK-MB, p<0.001) and troponin-I (cTnI) levels (p<0.05) significantly increased in the diabetic rats compared with the control group. Nevertheless, administration of GA improved significantly LVDP, +/-dp/dt, infarct size, LDH, CK-MB (p<0.001), blood glucose, the heart weight (p<0.01), body weight, RPP, hypertrophy index, antioxidant enzyme and cTnI levels (p<0.05) in the diabetic rats. The results of this study indicated that in the diabetic rats, left ventricular dysfunction and hypertrophy significantly induced possibly by oxidative stress. Moreover, GA as a potent antioxidant improved both left ventricular dysfunction and hypertrophy. PMID- 29035827 TI - Ginsenoside Rg3 enhances the anti-proliferative activity of erlotinib in pancreatic cancer cell lines by downregulation of EGFR/PI3K/Akt signaling pathway. AB - Erlotinib has shown activity in the management of pancreatic cancer. However, the benefit of EGFR blockade is limited due to EGFR independent PI3K/Akt signaling pathway. Studies have reported that Ginsenoside Rg3 strongly inhibited PI3K-Akt signaling pathway of many carcinomas. We aimed to investigate the activity of Ginsenoside Rg3 to sensitize erlotinib in treating pancreatic cancer in vitro and in vivo. Human pancreatic cancer cell lines BxPC-3 and AsPC-1 were used. Cell proliferation and colony formation assay, Annexin V/PI apoptosis analysis, Western blot analysis, immunohistochemistry and in vivo study were carried out. Ginsenoside Rg3 enhanced the anti-proliferative effects of erlotinib in BxPC-3 and AsPC-1 pancreatic cancer cells and xenograft. Ginsenoside Rg3 enhanced erlotinib-induced apoptosis and increased caspase-3,9 and PARP cleavage expression levels. Erlotinib/Ginsenoside Rg3 treatment decreased the levels of p EGFR, p-PI3K, and p-Akt expression significantly. Ginsenoside Rg3 could enhance the efficacy of erlotinib to inhibit the proliferation of pancreatic cancer cells via induction of apoptosis and downregulation of the EGFR/PI3K/AKT pathway. PMID- 29035828 TI - The role of CIP2A in cancer: A review and update. AB - Cancerous inhibitor of protein phosphatase 2A (CIP2A) is a characterized human oncoprotein that is able to promote cancer cells proliferation, anchorage independent cell growth and resistance to apoptosis. CIP2A inactivates protein phosphatase 2A (PP2A) which down-regulates Akt (Protein Kinase B) phosphorylation and stabilizes c-Myc (c-Myc oncogene product) in cancer cells. CIP2A has been studied in the most of human malignancies. Here we discuss the role of CIP2A in cancer and give a summary of CIP2A expression in malignancies. Also, where available we indicated the association of CIP2A with the stage of cancers and patients prognosis, explain its localization and the possibility of targeting CIP2A in different cancers. PMID- 29035829 TI - MiR-129 inhibits cell proliferation and metastasis by targeting ETS1 via PI3K/AKT/mTOR pathway in prostate cancer. AB - New evidence suggests that microRNAs (miRNAs) play an important role in regulating the development and progression of prostate cancer. However, their specific functions and mechanisms remained to be further explored. MiR-129 has been reported in gastric cancers, colon cancer and lung cancer. In this study, we disclosed a new tumor suppresser function of miR-129 in prostate cancer. The purpose of our study is to clarify the effects of miR-129 in cellular processes correlated with cancer development and progression of prostate cancer cell by regulating ETS1. MiR-129 and ETS1 expression in prostate cancer tissues, tumor adjacent tissues and cells were tested by quantitative real-time PCR. We validated the target relationship between miR-129 and ETS1 by dual luciferase reporter gene system. MTT, colony formation, tumorigenesis assays, flow cytometry, wound healing and transwell assays were used to analyze cell viability, proliferation, migration, and invasiveness in vivo and in vitro. The level of ETS1 protein expression was detected by western blot. Here we demonstrate that miR-129 have a relatively reduced expression in prostate cancer cell lines and tissues. Morever, the miR-129 inhibits the expression of ETS1 by binding its 3'-UTR. The overexpression of miR-129 can inhibit PC-3 cell viability, proliferation, migration and invasion through targeting ETS1 by PI3K/AKT/mTOR signaling pathway. These findings suggested that miR-129 could directly suppress ETS1, which might be one of potential mechanisms in inhibiting cell processes including viability, proliferation, migration and invasiveness of prostate cancercells and it provides new clues for us to understand the carcinogenesis of prostate cancer. In addition, it may help to develop a treatment approach for ETS1-activated prostate cancer. PMID- 29035830 TI - Hypolipemiant and antioxidant effects of Eugenia brasiliensis in an animal model of coconut oil-induced hypertriglyceridemia. AB - We investigated the effects of chronic administration of crude hydroalcoholic extract (CHE) and crude acetone extract (CAE) obtained from leaves of Eugenia brasiliensis species on hypertriglyceridemia and oxidative stress caused by the chronic administration of coconut oil. Rats received CHE or CAE (50, 100 or 150mg/kg, orally) for 30days, plus coconut oil (2mL, orally) or saline for 15th. Triglyceride levels, liver cell lipid accumulation, thiobarbituric acid reactive substances (TBA-RS), total sulfhydryl content and the activities of antioxidant enzymes catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) were evaluated in the blood and liver of rats. Results showed that chronic administration of CHE or CAE was able to prevent hypertriglyceridemia and decrease the lipid droplets in liver cells, as well as the increase in TBA-RS, the reduction in total sulfhydryl content and CAT activity in the blood and prevent total or partial the increase in CAT and reduction in SOD and GSH-Px activities in the liver. These findings indicate that both extracts may have hypolipidemic and antioxidant effects. PMID- 29035831 TI - The effects of novel chitosan-targeted gemcitabine nanomedicine mediating cisplatin on epithelial mesenchymal transition, invasion and metastasis of pancreatic cancer cells. AB - OBJECTIVE: The study aimed to evaluate the effects involved with the novel chitosan gemcitabine (Gem) nanoparticles mediating cisplatin (DDP) on epithelial mesenchymal transition (EMT), invasion and metastasis of pancreatic cancer (PC) cells. METHODS: A total of 62 healthy purebred BALB/C of specific-pathogen free (SPF) female nude mice were recruited and a SW1990 cell line was subsequently cultured. A heterotopic xenograft tumor model was constructed. After determining the optimal drug concentration, the nude mice were assigned into the control, glycol chitosan (GC)-Gem microsphere, antibody Complex (Abc)-GC-Gem and Abc-GC Gem microsphere+DDP groups (n=8 in each group). The tumor morphology of the nude mice was observed and HE staining was used to observe the pathological changes of the respective tissues. TUNEL staining was performed to detect cell apoptosis, while immunohistochemistry was employed for analysis of the positive expression rate of EGFR and the number of microvessel density (MVD). Both RT-qPCR and Western blotting were utilized for mRNA and protein expressions of VEGF, EGFR, Bcl-2, Bax, Survivin, Bak, E-cadherin and Vimentin analysis. RESULTS: The optimal drug concentration of Gem was determined to be 120mg/m2. In comparison to the control group, tumor size, weight, positive expression rate of EGFR and tumor MVD, as well as mRNA and protein expressions of Bax and E-cadherin decreased, while the inhibition rate (IR) and apoptosis index (AI), expression of VEGF, EGFR, Bcl-2, Survivin, Bak and Vimentin increased in the GC-Gem microsphere, Abc GC-Gem microsphere and Abc-GC-Gem microsphere+DDP groups. Compared with the GC Gem microsphere group, Abc-GC-Gem and Abc-GC-Gem microsphere+DDP groups had decreases concerning tumor size and weight, positive rate of protein expression of EGFR and tumor MVD, as well as the expression of Bax and E-cadherin, and enhances on IR and AI, expression of VEGF, EGFR, Bcl-2, Survivin, Bak, and Vimentin, which were the most obvious in the Abc-GC-Gem+DDP group (P<0.05). CONCLUSION: Novel Gem nanoparticles aid in mediating DDP to inhibit PC cell invasion and migriation, promote PC cell apoptosis and enhance the efficacy of chemotherapy. Our findings demonstrated that Gem administered in combination with DDP was more effective than Gem alone. PMID- 29035832 TI - New insights into Vinca alkaloids resistance mechanism and circumvention in lung cancer. AB - Nowadays, lung cancer, as a health problem in worldwide, has high mortality both in men and women. Despite advances in diagnosis and surgical techniques of lung cancer in recent decades, chemotherapy is still a fundamentally and extensively useful strategy. Vinca alkaloids are a class of important and widely used drugs in the treatment of lung cancer, targeting on the Vinca binding site at the exterior of microtubule plus ends. Either intrinsic or acquired resistance to chemotherapy of Vinca alkaloids has been a major obstacle to the treatment of lung cancer, which arose great interests in studies of understanding and overcoming resistance. In this review, we focused on the application and resistance mechanisms of the Vinca alkaloids such as vinblastine, vincristine, vinorelbine and vinflunine in lung cancer. We reviewed characteristic resistance mechanisms in lung cancer including over-expression of ATP-binding cassette (ABC) transporters P-glycoprotein and structural, functional or expression alterations of beta-tubulin (betaII, betaIII, betaIV) which may devote to the development of acquired resistance to the Vinca alkaloids; multidrug-resistance proteins (MRP1, MRP2, MRP3) and RLIP76 protein have also been identified that probably play a significant role in intrinsic resistance. Lung resistance-related protein (LRP) is contributed to lung cancer therapy resistance, but is not deal with the Vinca alkaloids resistance in lung cancer. Understanding the principle of the Vinca alkaloids in clinical application and mechanisms of drug resistance will support individualized lung cancer therapy and improve future therapies. PMID- 29035833 TI - Vanillic acid attenuates effects of transient bilateral common carotid occlusion and reperfusion in rats. AB - Cerebral hypoperfusion induced by transient bilateral common carotid arteries occlusion (tBCCAO), is associated with deleterious alterations in several physiological parameters of the animals. This study aims to investigate the effects of vanillic acid (VA) on memory impairment, locomotion and exploratory deficits, as well as histological and hippocampal long-term potentiation (LTP) injuries induced by tBCCAO procedure followed by reperfusion (BCCAO/R) in rats. Adult male Wistar rats (250-300g) were divided randomly into four groups: Sham Operated group "Sham"; Vehicle+BCCAO/R group "BCCAO/R"; Vehicle+ Vanillic acid group "VA"; VA (100mg/kg) +BCCAO/R group "VA +BCCAO/R". Cerebral hypoperfusion was induced after 14days of pretreatment with VA and/or normal saline. To induce the animal model of hypoperfusion, bilateral common carotid arteries were occluded for 30min, followed by 72h of reperfusion. Subsequently, behavioral, histopathological and electrophysiological parameters were evaluated after BCCAO/R. Data showed that pretreatment of VA markedly improved locomotion in tBCCAO rats compared with the untreated BCCAO/R rats (p<0.05). Moreover, pretreatment of VA significantly ameliorated memory impairment in "VA+BCCAO/R" group compared with the "BCCAO/R" group (P<0.01). The field excitatory postsynaptic potential (fEPSP) amplitude and slope were significantly decreased in "BCCAO/R" group compared with Sham group (P<0.001). Data indicate that fEPSP amplitude and slope were increased in "VA+BCCAO/R" group compared with the "BCCAO/R" group (P<0.001). Furthermore, histopathological observation in VA pretreated tBCCAO rats showing markedly attenuated of cell death (P<0.01) and arrangement of CA1 neurons as compared with the untreated BCCAO/R rats. Our data confirm the protective role of VA against transient cerebral ischemia and reperfusion in rats. Moreover, it proposes that VA has a beneficial role in cerebrovascular insufficiency states. PMID- 29035834 TI - Synergistic effect of mild hypothermia and the Notch inhibitor DAPT against post stroke seizures. AB - Seizure is a serious complication of stroke, indicating poor prognosis. Notch signaling is associated with neuronal activity. Inhibition of Notch signaling suppresses seizure activity induced by kainic acid. The present study investigated the effect of the Notch inhibitor, DAPT, alone or in combination with mild hypothermia, on post-stroke seizures. A global cerebral ischemia (GCI) model was performed in Sprague Dawley (SD) male rats. Seizure activity was evaluated by the frequency of seizure attacks, seizure severity scores, and seizure discharges. Without any intervention, seizures occurred intensively between 24h and 48h following GCI. Seizure activity was confirmed using EEG monitoring. The expression of Notch intracellular domains (NICD) 1 and 2 were up regulated in the cerebral cortex and hippocampus following GCI. DAPT was injected into the hippocampus of the rats to inhibit local Notch signaling. Active whole body cooling was performed to maintain the core temperatures of rats at 33.5 degrees C (mild hypothermia). Mild hypothermia and DAPT synergistically inhibited NICD 1 and 2 up-regulation, and post-stroke seizures. GCI augmented excitatory synaptic neurotransmission by up-regulating glutamate receptor subunits (GluN2A, GluA1) and the cotransporter, NKCC1, but attenuated inhibitory synaptic neurotransmission by down-regulating gamma amino acid, butyric acid (GABA), and the cotransporter, KCC2. DAPT treatment normalized the homeostasis of excitatory and inhibitory synaptic neurotransmission, suggesting that aberrant activation of Notch signaling is involved in post-stroke seizures. The present study adds to the further understanding of the pathogenesis of post-stroke seizures and the improvement of the treatment provided with hypothermia. PMID- 29035835 TI - Nerve Growth Factor-Beta, purified from bull seminal plasma, enhances corpus luteum formation and conceptus development in Bos taurus cows. AB - The objective of the current study was to determine if Nerve Growth Factor-Beta (NGF), purified from bovine seminal plasma, would improve corpus luteum function and enhance conceptus development when administered to cows at artificial insemination. Angus cows (n = 60) were synchronized using a GnRH-prostaglandin and intravaginal progesterone protocol (7-day CO-Synch/CIDR) and randomly allocated to 1 of 2 treatment groups: (1) CONT- 12 mL PBS; or (2) NGF- 296 MUg purified NGF in 12 mL PBS administered intramuscularly at insemination (day 0). Blood collections were performed to measure plasma concentrations of progesterone (days 0, 3, 7, 10, 14, 19) and pregnancy-specific protein B (day 24) using immunoassays. Expression of interferon-stimulated genes (ISG15, MX1, MX2, RTP4) were assessed in peripheral blood leukocytes on day 19. Transrectal ultrasound was performed for measuring corpus luteum size (days 0, 3, 7, 10, 14, 19) and pregnancy diagnosis (days 28, 45, 66). Statistical analysis was performed using analysis of variance with repeated measures (SAS 9.4, Cary NC). Corpus luteum volume and diameter increased over time (p < 0.001), but did not differ between treatment groups (p = 0.46). Cows treated with NGF had increased plasma progesterone over CONT cows from days 10-19 (p = 0.04). Pregnancy rates at day 28 were 75% in NGF cows versus 59% in CONT cows (p = 0.13). In pregnant cows, pregnancy-specific protein B concentrations at day 24 were greater in NGF than CONT cows (p < 0.05). Additionally, fold-change expression of ISG15 and MX2 at day 19 were greater in pregnant NGF cows than in pregnant CONT cows (p < 0.05), but no differences for MX1 and RTP4 were present. Here we demonstrate that NGF administration to cows at insemination improved corpus luteum function, which translated to improved early conceptus development as determined by upregulation of interferon-stimulated genes and increased pregnancy-specific protein B concentrations. These results suggest that seminal plasma NGF could play a role in conceptus development and may be important to improve fertility in cattle. PMID- 29035836 TI - Effect of initial GnRH and time of insemination on reproductive performance in cyclic and acyclic beef heifers subjected to a 5-d Co-synch plus progesterone protocol. AB - This study evaluated the effect of initial GnRH and timing of AI in a 5-d Co synch plus CIDR (device containing 1.38 g of progesterone) protocol on pregnancy per AI (P/AI) and pregnancy loss in beef heifers. A secondary objective was to determine if the effect of initial GnRH on reproductive performance was influenced by cyclicity. Crossbred beef heifers (n = 1068; 301-514 kg of body weight, and 13-15 mo of age) at three locations were assigned to either a 5-d Co synch plus CIDR protocol with (CIDR5G) or without (CIDR5NG) an initial injection of 100 MUg of GnRH at CIDR insertion (Day 0). All heifers received a single dose of 500 MUg of cloprostenol at CIDR removal (Day 5) and were divided into two groups to receive GnRH and TAI at either 66 or 72 h (Day 8) after CIDR removal. All heifers were inseminated by one technician with frozen-thawed semen from 1 of 4 sires available commercially. Transrectal ultrasonography was performed on Day 0 to determine cyclicity (presence of CL) and normalcy of the reproductive track, and 27 d after TAI to determine pregnancy status. Non-pregnant heifers (n = 470) were assigned to either a CIDR5G or a CIDR5NG protocol with TAI at 72 h after CIDR removal. Twelve days after second AI, heifers were exposure to bulls for 20 d and pregnancy diagnoses were performed approximately 30 d after second TAI and 60 d after bulls were removed to diagnose bull pregnancies and determine pregnancy loss rate. The percentage of acyclic heifers was 20.3%. Overall P/AI after first TAI was 55.6% (594/1068) and did not differ between CIDR5G and CIDR5NG (56.1 vs. 55.1%), or between TAI66 and TAI72 (55.8 vs. 55.4%). However, cyclic heifers were more likely to become pregnant than acyclic ones (59.3 vs. 41.2%; P < 0.01). Moreover, acyclic heifers subjected to the CIDR5NG had fewer P/AI than those subjected to CIDR5G (P < 0.01). Overall P/AI after resynchronization was 55.1% and did not differ between CIDR5G and CIDR5NG (51.3 vs. 59.0%). Overall pregnancy loss after first and second TAI were 3.0% (18/594) and 3.9% (8/205), respectively. When pregnancy loss data were combined, synchronization protocol (4.1 vs. 2.3% for CIDR5NG and CIDR5G; P = 0.01), cyclicity (5.8 vs. 2.9% for acyclic and cyclic; P = 0.03) and the interaction between synchronization protocol and cyclicity (P = 0.04) were significant. The overall cumulative pregnancy at the end of the breeding season was 94.2% (1006/1068); acyclic heifers were less likely to be pregnant at the end of the breeding season (88.4 vs. 95.8%; P < 0.01). In summary, the initial GnRH administration in a 5-d Co-synch plus CIDR protocol that includes a single PGF treatment is necessary in acyclic beef heifers to optimize P/AI, but not in cyclic heifers. Moreover, omission of initial GnRH was associated to greater pregnancy losses, particularly in acyclic heifers. Timing of AI did not affect P/AI. PMID- 29035837 TI - Testicular cytology by fine needle aspiration in domestic cats. AB - In cases where semen collection in tom-cats is not possible, FNA of testes is the alternative to evaluate sperm production. Although this technique for the diagnosis of fertility problems has been well discussed in other mammals (men, dogs, stallions), data for domestic cats are limited. Therefore, the aim of this study was to verify the reliability of FNA using needles of small diameters (22G and 29G) in testes of domestic cats of different ages to assess the spermatogenesis status and to present description of germ cells and Sertoli cells for cytological examinations. Thirty-four mixed breed cats aged between four months and two years presented for neutering to a Veterinary Hospital were used in this study. Under general anesthesia, testicular measures and FNA were followed by orchiectomy and imprints of the parenchyma of testes and epididymides. Cats were assigned into 3 groups: (G1) 10 cats aged less than 6 months, (G2) 14 cats aged between 6 months and one year and (G3) 10 cats aged more than one year. Cats weighted between 1.5 and 6.0 kg. The mean testicular volume (TV cm3) was 0.55 (G1), 1.18 (G2) and 2.66 (G3). Hemorrhages in the needle path were observed in more than 70% of testes. Few samples (4/68) were excluded due to blood contamination. All germ cells and Sertoli cells were identified and quantified in imprint and FNA smears. Incomplete spermatogenesis was observed in cats aged less than 6 months using both techniques (FNA and imprint); therefore, testicular FNA should not be recommended for cats at this age. Complete spermatogenesis was found in 64% of cats aged from 6 months up to one year and in all cats aged more than one year. There were no differences of Sertoli cell Index (SEI) and Spermatic Index (SI) between FNA and imprints of cats older than 6 months. In conclusion, FNA using needles of small diameter in the testes of domestic cats is viable, reliable and can be used as a tool for the analysis of the spermatogenesis status of cats older than 6 months, mainly in cases in which semen collection is not possible. PMID- 29035838 TI - Effect of two treatment protocols for ketosis on the resolution, postpartum health, milk yield, and reproductive outcomes of dairy cows. AB - We determined the effect of ketosis treatment with propylene glycol (PG) or PG plus l-carnitine and methionine (Metabolase(r), Fatro, Bologna, Italy) on the resolution, postpartum health, milk yield, and reproductive performances of dairy cows. Blood from 475 Holstein cows was collected weekly until 4 weeks after calving to measure blood beta-hydroxybutyrate (BHBA) concentrations. Cows with blood BHBA concentration >=1.2 mmol/L were diagnosed with ketosis and were enrolled. One hundred and fifty cows diagnosed with ketosis were randomly assigned to three treatment groups (Day 0): (1) PG (300 g, PO) for 3 days (PG group, n = 50), (2) PG (300 g, PO) plus l-carnitine (1.25 g) plus methionine (5 g, IV) for 3 days (PG + CM group, n = 50), and (3) no treatment (control group, n = 50). On Day 3, blood was collected to evaluate whether the ketosis had resolved. Cows in the PG and PG + CM groups with blood BHBA >=1.2 mmol/L were retreated for an additional 2 days, and then blood BHBA concentration was evaluated on Days 5 and 10. Blood glucose and haptoglobin concentrations, rumen fill score (RFS), and body condition score (BCS) were measured on Days 0, 3, 5, and 10. Postpartum complications, milk yield during the first 2 months, and reproductive outcomes were evaluated. The probability of resolution from ketosis was higher (P < 0.05) in the PG + CM group than in the control group on Days 3, 5, and 10 (odds ratio: 2.6-6.3). Blood BHBA in the PG + CM group was lower (P < 0.05) than that of the control group on Days 3 and 5, whereas blood glucose in the PG + CM group was higher (P < 0.05) than that of the control group on Days 3 and 5. RFS in the PG and PG + CM groups was higher than that of the control group on Day 10 (P < 0.01), while BCS loss from Day 0-10 in the control group was higher than those of the PG and PG + CM groups (P < 0.05). Milk yields on the 30th and 60th days postpartum were higher in the PG + CM group than the control and PG groups (P < 0.05). Postpartum complications and intervals between calving and first postpartum insemination or pregnancy did not differ among the groups (P > 0.05). In conclusion, treatment of dairy cows with PG plus l-carnitine and methionine improved the chances of resolution of ketosis and increased milk yield, while affecting neither the incidence of postpartum complications nor reproductive performance. PMID- 29035840 TI - Characteristics of Mexican children and adolescents who died by suicide: A study of psychological autopsies. AB - OBJECTIVE: In recent years, suicide in children and adolescents has increased considerably, becoming the second cause of death in this age group. Therefore, the aim of this study was to identify characteristics and factors that could precipitate deaths by suicide in children and adolescents. METHODS: Using the psychological autopsy method, we studied 28 suicide cases of children and adolescents between 10 and 17 years old. Socio-demographic factors, characteristics of the suicide and family history were documented. RESULTS: The proportion of deaths by suicide was the same in females and males (50% each). Most of the suicides were performed at the child/adolescent's home (78.6%) and no history of previous suicide attempts were registered (85.7%). Also, the majority of suicidal individuals came from a dysfunctional family (60.7%). CONCLUSIONS: Our results identified characteristics of children and adolescents that had died by suicide, such as dying at their homes and coming from dysfunctional families. Knowing the characteristics of children and adolescents that had ended their lives by suicide should be considered in future studies to help developing preventive programs and strategies for treating suicidal behaviors in Mexican children and adolescents. PMID- 29035841 TI - Verification of an improved hip joint center prediction method. AB - In motion analysis, the hip joint center (HJC) is used to define the proximal location of the thigh segment and is also the point about which hip moments are calculated. The HJC cannot be palpated; its location must be calculated. Functional methods have been proposed but are difficult to perform by some clinical populations. Therefore, regression methods are utilized, but yield large errors in estimating the HJC location. These prediction methods typically utilize the anterior and posterior superior iliac spines, where excessive adipose tissue makes correctly locating difficult. A new regression method (Hara) utilizes leg length and has been shown to improve HJC location in cadavers and less error than previous pelvic based regression methods, such as those proposed by Harrington et al. This study compared the accuracy of the HJC location calculated with both of the Harrington methods and the Hara method. The coronal knee angle was calculated for each method using a static motion analysis trial, and compared to the tibiofemoral angle measured on a gold standard digital full-leg coronal radiograph. This study demonstrated that the Hara method was more accurate than either of the Harrington methods. The mean error between the gold standard x-ray measurement and the motion analysis calculation for the Harrington (stepwise and LOOCV), the Harrington (linear regression), and Hara regression methods, respectively were 6.0 degrees , 4.0 degrees , and 1.8 degrees . Accurately modeling the HJC is critical for data interpretation and patient care. This study confirmed that the Hara HJC regression method is valid in an in-vivo setting. PMID- 29035842 TI - Derivation and characterization of integration-free iPSC line ISRM-UM51 derived from SIX2-positive renal cells isolated from urine of an African male expressing the CYP2D6 *4/*17 variant which confers intermediate drug metabolizing activity. AB - SIX2-positive renal cells isolated from urine from a 51year old male of African origin bearing the CYP2D6 *4/*17 variant were reprogrammed by nucleofection of a combination of two episomal-based plasmids omitting pathway (TGFbeta, MEK and GSK3beta) inhibition. The induced pluripotent stem cells (iPSCs) were characterized by immunocytochemistry, embryoid body formation, DNA-fingerprinting and karyotype analysis. Comparative transcriptome analyses with human embryonic stem cell lines H1 and H9 revealed a Pearson correlation of 0.9243 and 0.9619 respectively. PMID- 29035839 TI - Insights into protein misfolding and aggregation enabled by solid-state NMR spectroscopy. AB - The aggregation of proteins and peptides into a variety of insoluble, and often non-native, aggregated states plays a central role in many devastating diseases. Analogous processes undermine the efficacy of polypeptide-based biological pharmaceuticals, but are also being leveraged in the design of biologically inspired self-assembling materials. This Trends article surveys the essential contributions made by recent solid-state NMR (ssNMR) studies to our understanding of the structural features of polypeptide aggregates, and how such findings are informing our thinking about the molecular mechanisms of misfolding and aggregation. A central focus is on disease-related amyloid fibrils and oligomers involved in neurodegenerative diseases such as Alzheimer's, Parkinson's and Huntington's disease. SSNMR-enabled structural and dynamics-based findings are surveyed, along with a number of resulting emerging themes that appear common to different amyloidogenic proteins, such as their compact alternating short-beta strand/beta-arc amyloid core architecture. Concepts, methods, future prospects and challenges are discussed. PMID- 29035843 TI - Generation of a human control PBMC derived iPS cell line TUSMi001-A from a healthy male donor of Han Chinese genetic background. AB - A 59-year old healthy man of Han Chinese genetic background donated his peripheral blood mononuclear cells (PBMC). The non-integrating episomal vector system was used to reprogram his PBMCs with the human OSKM (Oct4, Sox2, Kl4 and c Myc) transcription factors. The pluripotency of transgene-free iPSCs was confirmed by immunocytochemistry for pluripotency markers and by the ability of the iPSCs to differentiate spontaneously into 3 germ layers in vitro. In addition, the iPSC line displayed a normal karyotype. In the studies of disease mechanism, the iPSC line can be used as a control. PMID- 29035844 TI - Comparison of Radial Access, Guided Femoral Access, and Non-Guided Femoral Access Among Women Undergoing Percutaneous Coronary Intervention. AB - OBJECTIVES: This study was conducted to determine the association between radial access, guided femoral access, and non-guided femoral access on postprocedural bleeding and vascular complications after percutaneous coronary intervention (PCI). BACKGROUND: Bleeding events and major vascular complications after PCI are associated with increased morbidity, mortality, and cost. While the radial approach has been shown to be superior to the femoral approach in reducing bleeding and vascular complications, whether the use of micropuncture, fluoroscopy, or ultrasound mitigates these differences is unknown. METHODS: We conducted a post hoc analysis of women in the SAFE-PCI for Women trial who underwent PCI and had the access method identified (n = 643). The primary endpoint of postprocedure bleeding or vascular complications occurring within 72 hours or at discharge was adjudicated by an independent clinical events committee and was compared based on three categories of access technique: radial, guided femoral (fluoroscopy, micropuncture, ultrasound), or non-guided femoral (none of the aforementioned). Differences between the groups were determined using multivariate logistic regression using radial access as the reference. RESULTS: Of the PCI population, 330 underwent radial access, 228 underwent guided femoral access, and 85 underwent non-guided femoral access. There was a statistically significant lower incidence of the primary endpoint with radial access vs non guided femoral access; however, there was no significant difference between radial approach and femoral access guided by fluoroscopy, micropuncture, or ultrasound. CONCLUSIONS: This post hoc analysis demonstrates that while radial access is safer than non-guided femoral access, guided femoral access appears to be associated with similar bleeding events or vascular complications as radial access. PMID- 29035845 TI - Radiation Reduction in the Pediatric Catheterization Laboratory Using a Novel Imaging System. AB - OBJECTIVES: Radiation dose was compared between two modern imaging systems with different x-ray tube technology (Megalix vs Gigalix) and detector type (amorphous vs crystalline silicon) at the same institution. BACKGROUND: Further reduction in radiation dose than currently reported may be achievable with advances in x-ray tube and detector technology. METHODS: Radiation dose (air kerma, dose-area product [DAP]) was retrospectively compared for post-transplant pediatric patients undergoing right heart catheterization/biopsy (fluoroscopy only) or "annual" catheterization with coronary angiography in one of two imaging systems between January 2014 and December 2016. Comparisons were also made with published radiation doses. RESULTS: A total of 122 right heart catheterizations with biopsy were performed in the Megalix/amorphous silicon (Si) lab and 168 in the Gigalix/crystalline Si lab. Age and weight were not statistically different for the two groups. There was a 50% decrease in median air kerma (2.2 mGy vs 1.1 mGy; P<.001) and 66% decrease in median DAP (52.2 MUGy*m2 vs 18.0 MUGy*m2; P<.001) for the Gigalix/crystalline Si lab. A total of 24 "annual" catheterizations were performed in the Megalix/amorphous Si lab and 22 were performed in the Gigalix/crystalline Si lab. There was a 57% reduction in median air kerma (458.6 mGy vs 198.6 mGy; P<.001) and a 46% reduction in median DAP (2548.0 MUGy*m2 vs 1367.1 MUGy*m2; P<.01) for the Gigalix/crystalline Si lab. Similar reductions were found on comparison with published doses. CONCLUSION: The Gigalix tube and crystalline Si detector decrease radiation dose by 50%-60% for fluoroscopy and cine acquisition in pediatric patients. PMID- 29035846 TI - Current Perspectives and Practices on Chronic Total Occlusion Percutaneous Coronary Interventions. AB - OBJECTIVES: We sought to examine contemporary perspectives and practices on chronic total occlusion (CTO) percutaneous coronary intervention (PCI). BACKGROUND: The frequency and success of CTO-PCI have been increasing in recent years. METHODS: An online questionnaire was created and distributed to cardiologists within the United States and internationally. RESULTS: A total of 1149 responses were obtained. The United States (n = 845; 73.5%), Asia (n = 98; 8.5%), Europe (n = 88; 7.7%), South America (n = 42; 3.7%), and Canada (n = 33; 2.9%) accounted for most responses. Mean practice duration of the respondents was 16.4 +/- 11.5 years and 66.9% were interventional cardiologists. Most respondents agreed that CTO-PCI results in an improvement of patient symptoms (90.7%), left ventricular function (79.3%), arrhythmia risk (69.2%), and overall survival (63.1%). Interventional cardiologists had a more favorable view of the benefits of CTO-PCI as compared with non-interventional cardiologists (P<.001). Most respondents estimated the procedural success rates of contemporary CTO-PCI to be between 51%-75% (34.2%) and 76%-85% (30.2%), with interventional cardiologists estimating higher success rates than non-interventionalists (P<.001). Perforation, mortality, and tamponade were the three most concerning complications. Time and procedure complexity were reported to be the most significant barriers to the development of a CTO-PCI program. CONCLUSIONS: Most cardiologists believe that CTO-PCI can provide significant clinical benefits and can be accomplished with moderate to high success rates. Interventional cardiologists have a more favorable view of CTO-PCI as compared with non-invasive cardiologists. PMID- 29035847 TI - Prevalence and molecular characterization of bovine Cryptosporidium from dairy cows in Northern Thailand. AB - Cryptosporidiosis is a common protozoan infection in humans and domestic animals. It is the culprit for significant neonatal morbidity in cattle as well as weight loss and delayed growth, which leads to large economic losses in the farming industry. Furthermore, bovine Cryptosporidium is also a principal source of human Cryptosporidium infections. The purpose of this study is to determine prevalence and genotype of Cryptosporidium spp. from feces of dairy cows from the northern parts of Thailand (Chiang Rai, Chiang Mai, and Lumpang provinces). A total of 500 fecal samples were collected directly from the rectum and they were examined for potential presence of Cryptosporidium infection by using tests such as DMSO modified acid fast stain, immunofluorescence antibody test (IFAT) and polymerase chain reaction (PCR). The prevalence of Cryptosporidium spp. was 5% by DMSO modified acid fast stain, 7% by IFAT and 7.6% by PCR respectively. The main genotypes of Cryptosporidium spp. identified were Cryptosporidium parvum and Cryptosporidium bovis. Therefore, as a result of this study, it can be said that, due to the potential cross-species transmission of Cryptosporidium parvum, infected dairy cows may pose a potential zoonotic risk to humans. PMID- 29035848 TI - Animal level risk factors associated with Babesia and Theileria infections in cattle in Egypt. AB - In present study, blood samples were collected randomly from 439 cows at three main regions of Egypt (northern, central and southern). Molecular diagnosis of Babesia and Theileria infections by PCR amplification of DNA (gene) fragments, then cloning and sequencing of the positive samples were conducted. A questionnaire was created to imply the assumed risk factors and logistic regression statistical analysis was carried out to appraise the potential factors on the animal level. The results revealed that 49 (11.16%) and 45 (10.25%) cattle were infected with Babesia and Theileria parasites, respectively. B. bigemina (7.97%) and T. annulata (9.56%) were the most prevalent parasites. For Babesia sp., final multivariate logistic regression analysis showed a significant association between the infection and irregular use of antiprotozoal drugs (P = 0.003; OR: 0.28; 95% CI: 0.12-0.65), management practice (P = 0.029; OR: 6.66; 95% CI: 1.21-36.59) and ecology area (P = 0.006; OR: 5.62; 95% CI: 1.63-19.31). However, for Theileria sp. infection, animal breed (P = 0.003; OR: 0.44; 95% CI: .45-1.00) and irregular use of antiprotozoal drugs (P<0.001; OR: 4.22; 95% CI: 2.62-5.60) were the potential risk factors. The results of the present study declare the prevalent bovine Babesia and Theileria sp. in Egypt based on molecular description. An impression on the potential risk factors associated with infections was obtained. Recognition of the potential risk factors associated with tick borne disease may be helpful to construct the best preventive measures. PMID- 29035849 TI - A new species of Spauligodon (Nematoda; Oxyuroidea; Pharyngodonidae) and other Nematodes in Cyrtodactylus epiroticus (Squamata; Gekkonidae) from Papua New Guinea. AB - Spauligodon papuensis sp. nov. from the large intestines of Cyrtodactylus epiroticus (Gekkonidae) from Papua New Guinea is described and illustrated. Spauligodon papuensis sp. nov. represents the 54th species assigned to the genus and the second species from the Oceanic Region. The new species is separated from congeners by the unique combination of aspinose filamentous tail and no spicule in the male; and spinose filamentous tail, fusiform, flanged eggs, and postbulbar vulva in the female. Four additional species of nematodes were also found in C. epiroticus: mature specimens of Cosmocerca zugi, Falcaustra papuensis, Physalopteroides milnensis and larvae of Abbreviata sp. PMID- 29035850 TI - Anti-angiogenic and anti-lymphangiogenic role of praziquantel and artemether in experimental mansoniasis. AB - Angiogenesis is one of the pillars of neoplasia. Lymphangiogenesis in context of granulomas is not yet understood. This study aimed to evaluate the role of praziquantel (PZQ) and artemether (ART) as anti-angiogenic and anti lymphangiogenic drugs in Schistosoma mansoni induced experimental hepatic model through immunohistochemical and serological studies, this can be used as a potential novel prophylactic approach in hepatic malignancy prevention and possible management. Forty female CD-1 Swiss albino mice were used divided into 4 groups (10 mice each); control healthy, control infected untreated, PZQ-treated and ART-treated. Angiogenic and lymphangiogenic effect of the drugs assessed pathologically through counting of the newly formed capillaries and lymphatics that immunohistochemically expressed by vascular Endothelial Growth Factor (VEGF), CD34 and D2-40 in liver sections using Cell Image Analyzer and serologically by evaluation of serum level of Tumor Necrosis Factor-Alpha (TNF alpha). Our results showed significant decrease in serum TNF-alpha in ART-treated group compared to control infected and PZQ treated groups. ART exhibited significant anti-angiogenic role on granulomas illustrated by remarkable milder intensity and significantly lower expression values of VEGF and CD34 immunostaining compared to PZQ and non-treated groups. Also, ART treated group exhibited negative D2-40 expression in the granulomas in contrast to the other groups, supporting the potent ART' anti-lymphangiogenic role that exceeded PZQ. In conclusion, ART showed not only anti-angiogenic effect but also prominent anti lymphangiogenic effect on hepatic S. mansoni granulomas compared to PZQ. Our study supports the potential use of ART as a potential novel prophylactic approach in hepatic malignancy prevention and possible management. PMID- 29035851 TI - Mitochondrial genotyping of Fascioloides magna from Bavaria, Germany. AB - In last few years, a great effort has been made to understand genetic interrelationships of European and North American populations of giant liver fluke Fascioloides magna (Trematoda, Fasciolidae). In Europe, spatial distribution of this parasite is evidently dynamic and ongoing process since new F. magna populations have constantly been emerging. Most recently, occurrence of F. magna in red deer (Cervus elaphus), sika deer (Cervus nippon), fallow deer (Dama dama), roe deer (Capreolus capreolus), and wild boar (Sus scrofa) was reported from north-eastern Bavaria in Germany. Fascioloides magna specimens collected from those hosts were genotyped using two mitochondrial regions; cytochrome c oxidase (cox1) and nicotinamide dehydrogenase (nad1). Results were compared with reference mitochondrial haplotypes of previously characterized European F. magna populations from northern Italy, Czech Republic/Poland, and the Danube floodplain forests. The study revealed genetic uniformity of F. magna specimens from Germany with flukes from the Czech focus, what indicated that fascioloidosis has been spreading beyond well established Czech focus into neighbouring countries. PMID- 29035852 TI - Abundance and species composition of Culicoides spp. biting midges near cattle and horse in South-Eastern Poland. AB - The aim of the study was to estimate and compare the distribution of Culicoides biting midges species at farms with different main hosts - cattle and horse. Culicoides spp. are known vectors of arboviruses including African horse sickness virus (AHSV), bluetongue virus (BTV) and Schmallenberg virus (SBV). The latter two have been already reported in Polish ruminants recently, while AHSV remains absent, however the risk of its emergence has been increasing in the recent years. In order to establish the activity of potential AHSV vector at vicinity of horses, an OVI midge trap has been placed at the horse stables in the southeastern Poland. Another trap has been placed 7 km away at the cattle farm. The collections were carried over the midge activity season from April until November 2016. The midge abundances at both sites were comparable with the total numbers of insects trapped of 43,153 and 34,829 at the cattle and horse farm, respectively. Midges belonging to C. obsoletus/scoticus complex were the dominant ones at both locations. The other most abundant species were C. punctatus and C. pulicaris, while the other ten species identified (C. chiopterus, C. deltus, C. dewulfi, C. fagineus, C. impunctatus, C. newsteadi, C. nubeculosus, C. parroti, C. riethi, C. stigma) accounted for less than 0.5%. The study has shown that the Orbivirus vectors are present at a high abundance at the Polish horse farm, what may be a helpful tool in the AHS risk assessment in the nonendemic part of Europe. PMID- 29035853 TI - The gastrointestinal nematodes of Paramelomys lorentzii and Mammelomys spp. (Rodentia: Muridae) with descriptions of a new genus and three new species (Heligmonellidae) from Papua New Guinea and Indonesia. AB - Unidentified cestodes and 14 species of nematode and larvae that could not be placed to family level, were collected from the digestive tracts of 27 individuals of Paramelomys lorentzii, four of Mammelomys lanosus and a single M. rattoides from Papua New Guinea and Papua Indonesia. Of these three were new species. Hughjonestrongylus woolleyae sp. nov. can be distinguished from its congeners in having up to 26 ridges in the synlophe and a dissymmetric dorsal ray. Parvinema bafunminensis gen. nov., sp. nov. can be distinguished from all other genera in the family by the combination of features in the synlophe; with a carene, up to 17 ridges, and the pattern of ridge sizes. Parvinema helgeni sp. nov. differs from P. bafunminensis in the length of the spicule and the number of eggs in the uterus. The nematode assemblage of P. lorentzii had similar species richness to, and was also dominated by heligmonellids, as that of Paramelomys rubex, although the two assemblages differed in species composition. PMID- 29035854 TI - Genotyping of Acanthamoeba spp. from water sources from Northwestern Iran. AB - Acanthamoeba spp. are free-living amoebae which are ubiquitously distributed worldwide and can be found in the wide range of environments, particularly in various types of water sources, where they able to cause important health problems. In the present study, cultures containing Acanthamoeba from water samples were obtained from our earlier survey. For an analysis of the genetic pattern of Acanthamoeba isolates, DNA sequencing of nuclear small-subunit rRNA gene (18S rRNA or Rns) was applied. A phylogenetic analyses of the isolates displayed that all of them were belonged to the potentially pathogenic T4 genotype. This investigation provides further evidence that the T4 genotype is the most prevalent in water samples and demonstrates that there is a need for taking more consideration to water sources in order to prevent complications associated with pathogenic Acanthamoeba spp. PMID- 29035855 TI - Transovarial persistence of Babesia ovata DNA in a hard tick, Haemaphysalis longicornis, in a semi-artificial mouse skin membrane feeding system. AB - Bovine piroplasmosis, a tick-borne protozoan disease, is a major concern for the cattle industry worldwide due to its negative effects on livestock productivity. Toward the development of novel therapeutic and vaccine approaches, tick-parasite experimental models have been established to clarify the development of parasites in the ticks and the transmission of the parasites by ticks. A novel tick-Babesia experimental infection model recently revealed the time course of Babesia ovata migration in its vector Haemaphysalis longicornis, which is a dominant tick species in Japan. However, there has been no research on the transovarial persistence of B. ovata DNA using this experimental infection model. Here we assessed the presence of B. ovata DNA in eggs derived from parthenogenetic H. longicornis female ticks that had engorged after semi-artificial mouse skin membrane feeding of B. ovata-infected bovine red blood cells. The oviposition period of the engorged female ticks was 21-24 days in the semi-artificial feeding. Total egg weight measured daily reached a peak by day 3 in all female ticks. Nested PCR revealed that 3 of 10 female ticks laid B. ovata DNA-positive eggs after the semi-artificial feeding. In addition, B. ovata DNA was detected at the peak of egg weight during oviposition, indicating that B. ovata exist in the eggs laid a few days after the onset of oviposition in the tick. These findings will contribute to the establishment of B. ovata-infected H. longicornis colonies under laboratory conditions. PMID- 29035856 TI - Apparent isocitrate lyase activity in Leishmania amazonensis. AB - Early reports have demonstrated the occurrence of glyoxylate cycle enzymes in several Leishmania species. However, these results have been underestimated because genes for the two key enzymes of the cycle, isocitrate lyase (ICL) and malate synthase (MS), are not annotated in Leishmania genomes. We have re examined this issue in promastigotes of Leishmania amazonensis. Enzyme activities were assayed spectrophotometrically in cellular extracts and characterized partially. A 40 kDa band displaying ICL activity was visualized on zymograms of the extracts. By immunoblotting with mouse antibodies against ICL from Bacillus stearothermophilus, a band of approximately 40 kDa was identified, coincident with the relative molecular mass of the activity band revealed on zymograms. Indirect immunofluorescence of intact promastigotes showed that the recognized antigen is distributed as a punctuated pattern, mainly distributed beneath the subpellicular microtubules, over a diffused cytoplasmic stain. These results clearly demonstrate the existence of an apparent ICL activity in L. amazonensis promastigotes, which is associated to a 40 kDa polypeptide and distributed both diffused and as punctuate aggregates in the cytoplasm. The relevance of this activity is discussed. PMID- 29035857 TI - Humoral response of mice infected with Toxocara canis following different infection schemes. AB - The study was focused on the dynamics of humoral response to Toxocara canis excretory-secretory antigens (TES antigens) in mice experimentally infected by T. canis L3 larvae in different ways. In particular, we compared the effect of infection with two doses of 1000 larvae vs. repeated infections with a low number of larvae (daily infection with 10 larvae and weekly infection with 100 larvae in the course of 22 weeks). In ELISA, all infections, including both schemes with lower larval doses, elicited significant antibody response. Elevated levels of total IgE and TES-antigen-specific IgM were detected on day 12 after the first infection, followed by IgG and IgG1, and later by IgG3, IgG2a and IgG2b; specific IgE response was not detected. It seems that the high levels of IgM and IgG1 represent the best markers of infection. In addition, gradual increase of IgG2a and IgG2b could help in determination of the infection course. As a byproduct of our work, a new method of infection by repeated drinking of larvae was introduced; it minimizes the pain and discomfort for the experimental mice. PMID- 29035858 TI - Detection of small number of Giardia in biological materials prepared from stray dogs. AB - Giardia lamblia is an intestinal protozoa with intermittent and low shedding especially in dogs, and the detection of Giardia is accompanied with problems such as sampling and diagnostic method. The objective of this study was to detection of Giardia in biological materials with low number of parasite using parasitological and molecular methods, and also to determine whether the examined stray dogs harbor known zoonotic genotype of Giardia. For this aim 85 fecal and duodenal samples were studied from which 1 was positive by Trichrome staining of stool, 4 were positive by staining of duodenal samples. The nested PCR analysis with primers derived from 18 SrRNA showed that the specific PCR product could be amplified in 4 stool and 4 duodenal samples. All positive samples in staining analysis were also positive in nested PCR. No amplification could be observed by nested PCR with primers derived from beta giardin gene due to the single copy of gene. Interestingly, the extracted DNA from old fixed stained Giardia positive smears could be also amplified with primers derived from 18SrRNA gene. The sequence analysis of nested PCR products showed that they belong to the genotype D. In conclusion, it is to denote that the Trichrome or Giemsa methods were not suitable for the detection of small number of this parasite in stool and the nested PCR with primers derived from 18S rRNA gene can replace the traditional methods successfully. For detection of Giardia in stool, primers derived from beta giardin will not be recommended. PMID- 29035859 TI - Gastrointestinal nematodes infections and anthelmintic resistance in grazing sheep in the Eastern Inner Mongolia in China. AB - Gastrointestinal nematodes (GIN) are a crucial restraint to grazing sheep production worldwide. This study was conducted to determine the infections and anthelmintic resistance (AR) of GIN in pasture-based sheep in the Eastern Inner Mongolia, China. GIN eggs were tested from 600 grazing sheep feces of 10 farms using saturated saline flotation method and McMaster's method. The egg hatch test (EHT) and the faecal egg count reduction test (FECRT) were used to evaluate resistance of GIN to anthelmintics. We found that the average infection rate was 79.2% (range: 45%-100%). The grand mean faecal egg count (FEC) was 1813.2 eggs per gram (EPG) (range: 0-32400 EPG). There were significant differences in GIN infection among different breeds of sheep. The sequence of infection intensity and infection rate were Small fat tail > Ujimqin > Ju Ud (p<0.05). The 50% effective doses (ED50) of albendazole(ABZ) and levamisole (LMS) for expelling were 5.670 ug/mL and 0.302 ug/mL, respectively. The percentage reductions of avermectin (AVM), ivermectin (IVM), ABZ and LMS were 81.28%, 86.49%, 76.21% and 96.59%, respectively. The most predominant parasite genus in all four anthelmintics was Haemonchus. In these tested areas, mixed infections of GIN in grazing sheep were very common. AR, especially in Haemonchus, was a serious problem in these sheep flocks. Thus, actions are urgently required to taken to mitigate the worsening situation. PMID- 29035860 TI - Expansion of Ashworthius sidemi in red deer and roe deer from the Lower Silesian Wilderness and its impact on infection with other gastrointestinal nematodes. AB - Nematodes Ashworthius sidemi are typical parasites of Asiatic cervids, mostly sika deer (Cervus nippon). Migrating red deer have probably introduced this parasite to the area of Poland from neighbouring countries. The aim of the study was to determine prevalence and intensity of infection of red deer and roe deer from the Lower Silesian Wilderness with A. sidemi after one year from previous studies and to examine the influence of these parasites on other species of gastrointestinal nematodes. 31 abomasa of red deer and 3 abomasa of roe deer from Forest Dictrict of Ruszow have been examined on the presence of parasites. In comparison with previous studies, red deer showed significant, over triple increase of prevalence of A. sidemi and over fivefold increase of mean intensity of infection. Maximum intensity of infection has increased over 24 times. These results indicate on dynamic spread of this new aswortiosis foci. Apart from previously registered parasite species, four new nematodes have been found in examined red deer and roe deer during this year studies. Red deer have been infected with Spiculopteragia assymmetrica, typical for fallow deer and Haemonchus placei - typical for bovine, whereas roe deer have been infected with Trichostrongylus axei and Trichostrongylus capricola, parasites of sheep, goats and bovine. Prevalence of red deer infection with nematodes S. boehmi and Ostertagia leptospicularis was lower than two years ago while prevalence of infection with S. mathevossiani and O. kolchida was higher. Intensity of infection with these nematodes has increased. PMID- 29035861 TI - The molecular identification of Calodium hepaticum in the wild brown rat (Rattus norvegicus) in Poland. AB - Calodium hepaticum is a parasitic nematode found primarily in rodents but known to infect numerous other mammal species, and causing in humans the hepatic calodiasis. Herein, we present the first finding of C. hepaticum in Rattus norvegicus in Poland. In this study, we have used the combined pepsin-HCl digestion and molecular techniques to detect C. hepaticum infection in the liver. The results confirm the usefulness of molecular approaches for investigating the biology and epidemiology of C. hepaticum. Additionally in this study, the parts of the small subunit rRNA (18S rRNA) gene of Aonchotheca annulosa from bank vole, Aonchotheca erinacei and Eucoleus sp. from hedgehog were amplified, yielding the first 18S rRNA gene sequences of these Capillariinae nematodes. PMID- 29035862 TI - First report of pneumonia caused by Angiostrongylus vasorum in a golden jackal. AB - Angiostrongylosis caused by metastrongyloid nematode Angiostrongylus vasorum is an emerging parasitic disease in Europe and the red fox (Vulpes vulpes) is considered as a main reservoir species for this parasite. Little is known about the role of other wild canids in the epidemiology of angiostrongylosis. The present paper provides the first description of pathomorphological lesions caused by A. vasorum in a golden jackal (Canis aureus). The paper describes a case of co infection with A. vasorum and Dirofilaria immitis in a one-year-old female golden jackal, legally hunted near the City of Kovin, South Banat, Serbia. The postmortem examination revealed severe pneumonia, proliferative endarteritis, the presence of two adult males of D. immitis in the right atrium, and the presence of 15 adult forms of A. vasorum (11 females and 4 males) in the pulmonary arteries. Native microscopy of an impression smear of the lung tissue found numerous larvae compatible with the A. vasorum first larval stage. This paper provides the first evidence that angiostrongylosis exists in the golden jackal in Serbia and confirms that the golden jackal should be considered as a very suitable definitive host for A. vasorum. The results suggest the possibility that the golden jackal may act as reservoir species and as an important transmitter of A. vasorum larvae. PMID- 29035863 TI - Sero-detection of Toxocara canis infection in human with T.canis recombinant arginine kinase, cathepsin L-1 and TES-26 antigens. AB - Three recombinant antigens viz. arginine kinase, cathepsin L-1 and TES-26 of Toxocara canis were expressed in Escherichia coli and evaluated for their potential in the detection of T. canis larval infection in human in immunoglobulin G-enzyme linked immunosorbent assay (IgG-ELISA). Results of the IgG-ELISA with the above recombinant antigens were confirmed with commercially available IgG detection kit for T. canis infection used as a standard test. All three recombinant antigens were 100% sensitive in the detection of positive cases (n = 6) of T. canis infection in human and were screened for their cross reactivity in human patients with history of Toxoplasma gondii, Plasmodium vivax, Entamoeba histolytica, hydatid and hookworm infections. The recombinant TES-26 antigen showed higher specificity and cross-reacted with T. gondii infection sera only. However, arginine kinase and cathepsin L-1 recombinant antigens showed cross-reactions with sera of patients infected with T. gondii, P. vivax and E. histolytica but not with the patient sera infected with hydatid and hookworm. These results show that recombinant TES-26 is a potential diagnostic candidate antigen for human toxocarosis caused by migrating T. canis larvae. PMID- 29035864 TI - Redescription of the nematode parasites of lizards: Strongyluris oscari Travassos, 1923 (Heterakidae) from Brazil and Pharyngodon mamillatus (Linstow, 1897) (Pharyngodonidae) from Egypt. AB - Strongyluris oscari Travassos, 1923, parasite of Topidurus torquatus (Wied Neuwied, 1820) (Tropiduridae) from Brazil and Pharyngodon mamillatus (Linstow, 1897) of Chalcides ocellatus (Forskal, 1775) (Scincidae) from Egypt, were redescribed based on light and scanning electron microscopy, and re-evaluation of specimens from parasitological collections. The following features were accurately observed in S. oscari for the first time: structure of lips and pharyngeal valve, presence and distribution of somatic papillae, number and arrangement of caudal papillae, presence of inner sclerotised structures supporting the ventral sucker and the ventral region in tail of males, and structure of the posterior anal lip in females. The unpaired papilla on the inferior edge of the ventral sucker in males of S. oscari is a cuticular groove instead of a true papilla. Regarding the morphology of P. mamillatus the following features were given in details for the first time: structure of the cephalic end in both male and female, location of amphids, position of phasmids in females and the accurate morphology of caudal bursa in males, including the distribution of caudal papillae and the genital cone morphology. Strongyluris oscari and P. mamillatus have no intraspecific morphological variations, but wide range on biometric features. These variations may be accounted by host/environment attributes, since they exhibit wide host and geographical spectra. The present results increased the morphological knowledge of P. mamillatus and S. oscari, strengthening their taxonomic validity. PMID- 29035865 TI - Further study on Physaloptera clausa Rudolphi, 1819 (Spirurida: Physalopteridae) from the Amur hedgehog Erinaceus amurensis Schrenk (Eulipotyphla: Erinaceidae). AB - In the present study, light and scanning electron microscopy (SEM) were used to further study the detailed morphology of Physaloptera clausa Rudolphi, 1819, based on the material collected from the Amur hedgehog E. amurensis Schrenk in China. The results revealed a few previously unreported morphological features and some morphological and morphometric variability between our specimens and the previous studies. The present supplementary morphological characters and morphometric data could help us to recognize this species more accurately. PMID- 29035866 TI - Myrmicinosporidium durum in Poland: a new location for this fungal ant endoparasite and updated world distribution. AB - Myrmicinosporidium durum is an enigmatic fungal parasite of ants with an unclear phylogeny and life cycle. Despite the fact that new records of this fungus have been revealed in the last few years; several countries from Eastern Europe still lack such information. With this study, we reveal the most northerly location of this fungus to date and its first record in Poland a contribution to filling the gaps in data about its European distribution. Additionally, we present an updated compilation of the world distribution of M. durum and its host ant species. PMID- 29035867 TI - Natural occurrence of microsporidia infecting Lepidoptera in Bulgaria. AB - We examined 34 lepidopteran species belonging to 12 families to determine presence and prevalence of microsporidian pathogens. The insects were collected from May 2009 to July 2012 from 44 sites in Bulgaria. Nosema species were isolated from Archips xylosteana, Tortrix viridana, Operophtera brumata, Orthosia cerasi, and Orthosia cruda. Endoreticulatus sp. was isolated from Eilema complana. The prevalence of all isolates in their hosts was low and ranged from 1.0% to 5.3%. Phylogenetic analyses of the new isolates based on SSU rDNA are presented. PMID- 29035868 TI - Comparative analysis of codon usage pattern and its influencing factors in Schistosoma japonicum and Ascaris suum. AB - Schistosoma japonicum and Ascaris suum are considered as the major parasites of human which cause various life threatening diseases such as schistomiasis and ascariasis. The codon usage bias (CUB) is known as the phenomenon of more usage of a specific codon than the other synonymous codons for an amino acid. The factors that influence the codon usage bias are mutation pressure, natural selection, gene expression, gene length, GC content, RNA stability, recombination rates, codon position etc. Here we had used various bioinformatic tools and statistical analyses to understand the compositional features, expression level and codon usage bias in the genes of these two species.After estimating the effective number of codon (ENC) in both the species, codon usage bias was found to be low and gene expression was high. The nucleobase A and T were used most often than C and G. From neutrality plot and correspondence analysis it was found that both natural selection and mutation pressure played an important role in shaping the codon usage pattern of both species. Moreover, natural selection played a major role while mutation pressure played a minor role in shaping the codon usage bias in S. japonicum and A.suum. This is the first report on the codon usage biology in S. japonicum and A.suum, and the factors influencing their codon usage bias. These results are expected to be useful for genetic engineering and evolutionary studies. PMID- 29035869 TI - Varroa destructor induces changes in the expression of immunity-related genes during the development of Apis mellifera worker and drone broods. AB - The ectoparasitic mite Varroa destructor has emerged as the major pest of honeybees. Despite extensive research efforts, the pathogenesis of varroosis has not been fully explained. Earlier studies suggested that V. destructor infestation leads to the suppression of the host's immune system. The aim of this study was to analyze the immune responses of 14 genes in the Toll signal transduction pathways, including effector genes of antimicrobial peptides (AMPs), in developing Apis mellifera workers and drones infested with V. destructor. Four developmental stages (L5 larvae, prepupae, and 2 pupal stages) and newly emerged imagines were analyzed. In workers, the most significant changes were observed in L5 larvae in the initial stages of infestation. A significant increase in the relative expression of 10 of the 14 analyzed genes, including defensin-1 and defensin-2, was observed in infested bees relative to non-infested individuals. The immune response in drones developed at a slower rate. The expression of genes regulating cytoplasmic signal transduction increased in prepupae, whereas the expression of defensin-1 and defensin-2 effector genes increased in P3 pupae with red eyes. The expression of many immunity-related genes was silenced in successive life stages and in imagines, and it was more profound in workers than in drones. The results indicate that V. destructor significantly influences immune responses regulated by the Toll signal transduction pathway in bees. In infested bees, the observed changes in Toll pathway genes varied between life stages and the sexes. PMID- 29035870 TI - Oxidative stress and cytotoxicity elicited lipid peroxidation in hemocytes of Bombyx mori larva infested with dipteran parasitoid, Exorista bombycis. AB - Parasitization of silkworm, Bombyx mori by invasive larva of dipteran parasitoid Exorista bombycis caused upto 20% revenue loss in sericulture. The parasitism was successful by suppressing host immune system however mechanism of immune suppression induced by E. bombycis is unknown which is unravelled here. The infestation induced cytotoxic symptoms in host hemocytes, such as vacuolated cytoplasm, porous plasma membrane, indented nuclei with condensed chromatin and dilated RER. One of the markers of necrosis is cell permeabilization, which can be measured as released lactate dehydrogenase (LDH). LDH level showed significantly (P<0.01) high release into extracellular medium in vitro after exposure of hemocytes to parasitoid larval tissue protein compared with control revealing membrane permeability and loss of cell integrity. At five minutes after exposure, cytotoxicity was 43% and was increased to 99% at 3h. The cytotoxicity is signalled by increased content of hydrogen peroxide (H2O2) causing lipid peroxidation followed by porosity in plasma membrane. A test for lipid peroxidation by measurement of lipid peroxidation breakdown product, malondialdehyde (MDA) revealed significant increase in peroxidation from one to 24 h post-invasion, with maximum at 12 h (P<0.008). Level of reactive oxygen species measured as H2O2 production increased from 6 to 12 h post-invasion and continued to increase significantly (P<0.03) reaching maximum at 48 h. These observations reveal that dipteran endoparasitoid invasion induced H2O2 production in the hemocytes causing cytotoxicity, lipid peroxidation and membrane porosity that suppressed both humoral- and cell-mediated immune responses of hemocytes in B. mori. PMID- 29035871 TI - Defining the competency of professionalism at two military medical centers. PMID- 29035873 TI - Multi-task transfer learning deep convolutional neural network: application to computer-aided diagnosis of breast cancer on mammograms. AB - Transfer learning in deep convolutional neural networks (DCNNs) is an important step in its application to medical imaging tasks. We propose a multi-task transfer learning DCNN with the aim of translating the 'knowledge' learned from non-medical images to medical diagnostic tasks through supervised training and increasing the generalization capabilities of DCNNs by simultaneously learning auxiliary tasks. We studied this approach in an important application: classification of malignant and benign breast masses. With Institutional Review Board (IRB) approval, digitized screen-film mammograms (SFMs) and digital mammograms (DMs) were collected from our patient files and additional SFMs were obtained from the Digital Database for Screening Mammography. The data set consisted of 2242 views with 2454 masses (1057 malignant, 1397 benign). In single task transfer learning, the DCNN was trained and tested on SFMs. In multi-task transfer learning, SFMs and DMs were used to train the DCNN, which was then tested on SFMs. N-fold cross-validation with the training set was used for training and parameter optimization. On the independent test set, the multi-task transfer learning DCNN was found to have significantly (p = 0.007) higher performance compared to the single-task transfer learning DCNN. This study demonstrates that multi-task transfer learning may be an effective approach for training DCNN in medical imaging applications when training samples from a single modality are limited. PMID- 29035874 TI - Parameter selection in limited data cone-beam CT reconstruction using edge preserving total variation algorithms. AB - There are a number of powerful total variation (TV) regularization methods that have great promise in limited data cone-beam CT reconstruction with an enhancement of image quality. These promising TV methods require careful selection of the image reconstruction parameters, for which there are no well established criteria. This paper presents a comprehensive evaluation of parameter selection in a number of major TV-based reconstruction algorithms. An appropriate way of selecting the values for each individual parameter has been suggested. Finally, a new adaptive-weighted projection-controlled steepest descent (AwPCSD) algorithm is presented, which implements the edge-preserving function for CBCT reconstruction with limited data. The proposed algorithm shows significant robustness compared to three other existing algorithms: ASD-POCS, AwASD-POCS and PCSD. The proposed AwPCSD algorithm is able to preserve the edges of the reconstructed images better with fewer sensitive parameters to tune. PMID- 29035872 TI - A review of antimicrobial stewardship training in medical education. AB - Objectives: We reviewed the published literature on antimicrobial stewardship training in undergraduate and postgraduate medical education to determine which interventions have been implemented, the extent to which they have been evaluated, and to understand which are most effective. Methods: We searched Ovid MEDLINE and EMBASE from inception to December 2016. Four thousand three hundred eighty-five (4385) articles were identified and underwent title and abstract review. Only those articles that addressed antimicrobial stewardship interventions for medical trainees were included in the final review. We employed Kirkpatrick's four levels of evaluation (reaction, learning, behaviour, results) to categorize intervention evaluations. Results: Our review included 48 articles. The types of intervention varied widely amongst studies worldwide. Didactic teaching was used heavily in all settings, while student-specific feedback was used primarily in the postgraduate setting. The high-level evaluation was sparse, with 22.9% reporting a Kirkpatrick Level 3 evaluation; seventeen reported no evaluation. All but one article reported positive results from the intervention. No articles evaluated the impact of an intervention on undergraduate trainees' prescribing behaviour after graduation. Conclusions: This study enhances our understanding of the extent of antimicrobial stewardship in the context of medical education. While our study demonstrates that medical schools are implementing antimicrobial stewardship interventions, rigorous evaluation of programs to determine whether such efforts are effective is lacking. We encourage more robust evaluation to establish effective, evidence-based approaches to training prescribers in light of the global challenge of antimicrobial resistance. PMID- 29035875 TI - A 20-channel magnetoencephalography system based on optically pumped magnetometers. AB - We describe a multichannel magnetoencephalography (MEG) system that uses optically pumped magnetometers (OPMs) to sense the magnetic fields of the human brain. The system consists of an array of 20 OPM channels conforming to the human subject's head, a person-sized magnetic shield containing the array and the human subject, a laser system to drive the OPM array, and various control and data acquisition systems. We conducted two MEG experiments: auditory evoked magnetic field and somatosensory evoked magnetic field, on three healthy male subjects, using both our OPM array and a 306-channel Elekta-Neuromag superconducting quantum interference device (SQUID) MEG system. The described OPM array measures the tangential components of the magnetic field as opposed to the radial component measured by most SQUID-based MEG systems. Herein, we compare the results of the OPM- and SQUID-based MEG systems on the auditory and somatosensory data recorded in the same individuals on both systems. PMID- 29035876 TI - Hydrogen Gas Attenuates Myocardial Ischemia Reperfusion Injury Independent of Postconditioning in Rats by Attenuating Endoplasmic Reticulum Stress-Induced Autophagy. AB - BACKGROUND/AIMS: To study the effect of inhaling hydrogen gas on myocardial ischemic/reperfusion(I/R) injury in rats. METHODS: Seventy male Wistar albino rats were divided into five groups at random as the sham group (Sham). The I/R group (I/R), The ischemic postconditioning group (IPo), The I/R plus hydrogen group (IH2) and the ischemic postconditioning plus hydrogen group (IPoH2). The Sham group was without coronary occlusion. In I/R group, Ischemic/reperfusion injury was induced by coronary occlusion for 1 hour. Followed by 2 hours of reperfusion. In the IPo and IPoH2 group, four cycles of 1 min reperfusion/1 min ischemia was given at the end of 1 hour coronary occlusion. While 2% hydrogen was administered by inhalation 5 min before reperfusion till 2 hours after reperfusion in both the IPoH2 and IH2 group. The heart and blood samples were harvested at the end of the surgical protocol. Then the myocardium cell endoplasmic reticulum(ER) stress and autophagy was observed by electron microscope. In addition, the cardiac ER stress and autophagy related proteins expression were detected by Western blotting analysis. RESULTS: Both inhaling 2% hydrogen and ischemic postconditioning treatment reduced the ischemic size and serum troponin I level in rats with I/R injury, and inhaling hydrogen showed a more curative effect compared with ischemic postconditioning treatment. Meanwhile inhaling hydrogen showed a better protective effect in attenuating tissue reactive oxygen species. Malondialdehyde levels and immunoreactivities against 8 hydroxy-2'-deoxyguanosine and inhibiting cardiac endoplasmic reticulum stress and down-regulating autophagy as compared with ischemic postconditioning treatment. CONCLUSION: These results revealed a better protective effect of hydrogen on myocardial ischemic/reperfusion injury in rats by attenuating endoplasmic reticulum stress and down-regulating autophagy compared with ischemic postconditioning treatment. PMID- 29035877 TI - Association of Maternal Serum 25-Hydroxyvitamin D Concentrations with Risk of Gestational Anemia. AB - BACKGROUND/AIMS: Vitamin D deficiency has been shown to be associated with a greater prevalence of anemia in various healthy and diseased populations by a great deal of observational studies. However, less work has been done to explore this association in pregnant women. The aim of this study was to evaluate the association between maternal serum 25-hydroxyvitamin D [25(OH)D] concentrations and risk of gestational anemia in a large, nested case-control study. METHODS: The serum 25(OH)D concentrations was measured by enzyme immunoassay in 775 pregnant women affected with anemia and 1550 controls. Logistic regression analysis was conducted to assess the association of 25(OH)D concentrations with risk of gestational anemia. RESULTS: We found the 25(OH)D concentrations was significantly lower in women affected with anemia than in controls. Logistic regression analyses showed that women with 25(OH)D concentrations < 25.0 nmol/L, from 25.0 to 37.4 nmol/L and from 37.5 to 49.9 nmol/L all had increased risk of anemia when compared with women with concentrations from 50.0 to 74.9 nmol/L. And the risk of anemia was significantly increased with the decreasing concentrations of the serum 25(OH)D in a dose-dependent manner (P for trend = 0.012). For women with concentrations < 50.0 nmol/L, they had an 80% increase in anemia risk (95% CI = 1.45-2.25) after adjustment for confounders. We also observed a nonlinear relationship between the serum 25(OH)D and anemia, with a threshold for 25(OH)D of 50.0 nmol/L existed for anemia. CONCLUSION: Maternal serum 25(OH)D < 50.0 nmol/L may be a risk factor for gestational anemia, and it should be monitored for the high-risk pregnant women. PMID- 29035878 TI - Resveratrol Ameliorates Contrast Induced Nephropathy Through the Activation of SIRT1-PGC-1alpha-Foxo1 Signaling in Mice. AB - BACKGROUND/AIMS: SIRT1 activation promotes the resistance of renal tubular cells to oxidative stress, and resveratrol is known as a SIRT1 activator. METHODS: Resveratrol was injected intraperitoneally with iohexol for 24 hours. NRK-52E cells were pretreated with resveratrol for 24 hours and then exposed to iohexol for 3 hours. Renal function was measured by serum creatinine and cell survival was assessed by MTT assay. We investigated whether resveratrol attenuates oxidative stress and apoptosis in contrast-induced nephropathy (CIN). RESULTS: Serum creatinine and tubular injury increased significantly after iohexol treatment, and resveratrol co-treatment attenuated the renal injury. Cell survival decreased after iohexol exposure and resveratrol reduced cell death induced by iohexol. Resveratrol was accompanied with the activation of SIRT1 and PGC-1alpha and dephosphorylation of FoxO1 in mice with CIN. SIRT1 and PGC-1alpha expression were decreased by iohexol, and increased significantly in resveratrol pretreated cells. These processes resulted in reduction of oxidative stress and apoptosis both in vivo and in vitro experiments. Resveratrol decreased inflammatory cell infiltration induced by iohexol in mice with CIN. SIRT1 inhibition using siRNA in tubular cells accentuated the decrease of cell viability by iohexol. CONCLUSION: Resveratrol attenuated CIN by modulating renal oxidative stress and apoptosis through activation of SIRT1-PGC-1alpha-FoxO1 signaling. PMID- 29035880 TI - Immunoregulation of Neutrophil Extracellular Trap Formation by Endothelial Derived p33 (gC1q Receptor). AB - The formation of neutrophil extracellular traps (NETs) is a host defence mechanism, known to facilitate the entrapment and growth inhibition of many bacterial pathogens. It has been implicated that the translocation of myeloperoxidase (MPO) from neutrophilic granules to the nucleus is crucial to this process. Under disease conditions, however, excessive NET formation can trigger self-destructive complications by releasing pathologic levels of danger associated molecular pattern molecules (DAMPs). To counteract such devastating immune reactions, the host has to rely on precautions that help circumvent these deleterious effects. Though the induction of DAMP responses has been intensively studied, the mechanisms that are used by the host to down-regulate them are still not understood. In this study, we show that p33 is an endothelial-derived protein that has the ability to annul NET formation. We found that the expression of human p33 is up-regulated in endothelial cells upon infections with Streptococcus pyogenes bacteria. Using tissue biopsies from a patient with streptococcal necrotising fasciitis, we monitored co-localisation of p33 with MPO. Further in vitro studies revealed that p33 is able to block the formation of DAMP-induced NET formation by inhibiting the enzymatic activity of MPO. Additionally, mice challenged with S. pyogenes bacteria demonstrated diminished MPO activity when treated with p33. Together, our results demonstrate that host-derived p33 has an important immunomodulating function that helps to counterbalance an overwhelming DAMP response. PMID- 29035879 TI - Advanced Glycation End Products Impair Ca2+ Mobilization and Sensitization in Colonic Smooth Muscle Cells via the CAMP/PKA Pathway. AB - BACKGROUND/AIMS: Excessive production of advanced glycation end products (AGEs) has been implicated in diabetes-related complications. This study aimed to investigate the mechanism by which AGEs potentially contribute to diabetes associated colonic dysmotility. METHODS: Control and streptozotocin (STZ)-induced diabetic groups were treated with aminoguanidine (AG). The colonic transit time and contractility of circular muscle strips was measured. ELISA, immunohistochemistry and western blotting were used to measure Nepsilon carboxymethyl-lysine (CML) levels. Primary cultured colonic smooth muscle cells (SMCs) were used in complementary in vitro studies. RESULTS: Diabetic rats showed prolonged colonic transit time, weak contractility of colonic smooth muscle strips, and elevated levels of AGEs in the serum and colon tissues. cAMP levels, protein kinase-A (PKA) activities, and inositol 1,4,5-trisphosphate receptor type 3 (IP3R3) phosphorylation were increased in the colon muscle tissues of diabetic rats, whereas RhoA/Rho kinase activity and myosin phosphatase target subunit 1 (MYPT1) phosphorylation were reduced. The inhibition of the production of AGEs (AG treatment) reduced these effects. In cultured colonic SMCs, AGE-BSA treatment increased IP3R3 phosphorylation and reduced intracellular Ca2+ concentration, myosin light chain (MLC) phosphorylation, RhoA/Rho kinase activity, and MYPT1 phosphorylation. The PKA inhibitor H-89 and anti-RAGE antibody inhibited the AGE BSA-induced impairment of Ca2+ signaling and cAMP/PKA activation. CONCLUSION: AGEs/RAGE participate in diabetes-associated colonic dysmotility by interfering with Ca2+ signaling in colonic SMCs through targeting IP3R3-mediated Ca2+ mobilization and RhoA/Rho kinase-mediated Ca2+ sensitization via the cAMP/PKA pathway. PMID- 29035881 TI - Activation of Signaling Cascades by Weak Extremely Low Frequency Electromagnetic Fields. AB - BACKGROUND/AIMS: Results from recent studies suggest that extremely low frequency magnetic fields (ELF-MF) interfere with intracellular signaling pathways related to proliferative control. The mitogen-activated protein kinases (MAPKs), central signaling components that regulate essentially all stimulated cellular processes, include the extracellular signal-regulated kinases 1/2 (ERK1/2) that are extremely sensitive to extracellular cues. Anti-phospho-ERK antibodies serve as a readout for ERK1/2 activation and are able to detect minute changes in ERK stimulation. The objective of this study was to explore whether activation of ERK1/2 and other signaling cascades can be used as a readout for responses of a variety of cell types, both transformed and non-transformed, to ELF-MF. METHODS: We applied ELF-MF at various field strengths and time periods to eight different cell types with an exposure system housed in a tissue culture incubator and followed the phosphorylation of MAPKs and Akt by western blotting. RESULTS: We found that the phosphorylation of ERK1/2 is increased in response to ELF-MF. However, the phosphorylation of ERK1/2 is likely too low to induce ELF-MF dependent proliferation or oncogenic transformation. The p38 MAPK was very slightly phosphorylated, but JNK or Akt were not. The effect on ERK1/2 was detected for exposures to ELF-MF strengths as low as 0.15 uT and was maximal at ~10 uT. We also show that ERK1/2 phosphorylation is blocked by the flavoprotein inhibitor diphenyleneiodonium, indicating that the response to ELF-MF may be exerted via NADP oxidase similar to the phosphorylation of ERK1/2 in response to microwave radiation. CONCLUSIONS: Our results further indicate that cells are responsive to ELF-MF at field strengths much lower than previously suspected and that the effect may be mediated by NADP oxidase. However, the small increase in ERK1/2 phosphorylation is probably insufficient to affect proliferation and oncogenic transformation. Therefore, the results cannot be regarded as proof of the involvement of ELF-MF in cancer in general or childhood leukemia in particular. PMID- 29035882 TI - Regulation of Arthritis Severity by the Acid Sphingomyelinase. AB - BACKGROUND/AIMS: Rheumatoid arthritis is a chronic autoimmune disease hallmarked by inflammation in synovial joints. Treatment is hampered by the lack of a cure and current disease-modifying drugs are associated with potentially severe toxicities. METHODS: We investigated arthritis severity by measuring joint swelling and pro-inflammatory cytokine production in a murine experimental model of inflammatory arthritis (antigen-induced arthritis). We analyzed acid sphingomyelinase knock-out mice and wild-type littermates, as well as mice treated with the pharmacological acid sphingomyelinase inhibitor amitriptyline. RESULTS: Genetic ablation or pharmacological inhibition of acid sphingomyelinase reduced joint swelling and levels of pro-inflammatory cytokines in the arthritic joint. CONCLUSION: We identified acid sphingomyelinase as a novel druggable target in rheumatoid arthritis. Functional inhibitors of acid sphingomyelinase have been clinically used for decades, are well tolerated and suitable for long term treatment. They would be immediately available for clinical development as a novel rheumatoid arthritis therapy. PMID- 29035883 TI - Association between Allergies and Hypercholesterolemia: A Systematic Review. AB - BACKGROUND: There is controversy in the literature regarding the potential relationship between atopic predisposition (AP) and serum cholesterol levels. To this purpose, we reviewed human studies that investigated this possible link. METHODS: Following PRISMA guidelines, a literature search of PubMed and Science Direct for peer-reviewed journal articles in English from January 2003, with updates through to August 2016, was conducted. Relevant publications were reviewed that included pediatric and adult populations. Information on the study design, sample, intervention, comparators, outcome, time frame, and risk of bias were abstracted for each article. RESULTS: Of 601 reviewed reports, 18 were included in this systematic review. Fifteen studies assessed the relationship between AP and serum cholesterol levels. Due to the lack both of observational and cross-sectional studies from the literature search at this time (only 8 studies also analyzed confounding factors) there is a high possibility of confounding variables (familial and genetic predisposition, age, gender, BMI, comorbidity, and medication status) that could not be ruled out. CONCLUSION: Existing studies are heterogeneous, making it difficult to draw broad conclusions. Future studies and more detailed analyses, considering confounding variables and including a larger and homogeneous population, are needed to strengthen the argument for a link between lipid metabolism and atopy. PMID- 29035884 TI - Protective Effects of Pretreatment with Quercetin Against Lipopolysaccharide Induced Apoptosis and the Inhibition of Osteoblast Differentiation via the MAPK and Wnt/beta-Catenin Pathways in MC3T3-E1 Cells. AB - BACKGROUND/AIMS: Quercetin, a flavonoid found in onions and other vegetables, has potential inhibitory effects on bone resorption in vivo and in vitro. In our previous study, we found that quercetin treatment reversed lipopolysaccharide (LPS)-induced inhibition of osteoblast differentiation through the mitogen activated protein kinase (MAPK) pathway in MC3T3-E1 cells. In this study, we investigated the underlying mechanisms of pretreatment with quercetin on apoptosis and the inhibition of osteoblast differentiation in MC3T3-E1 cells induced by LPS. METHODS: MC3T3-E1 osteoblasts were treated with quercetin for 2 h; cells were then incubated with LPS in the presence of quercetin for the indicated times. Cell viability was measured using the Cell Counting Kit-8 (CCK 8) assay, and cell apoptosis was evaluated using Hoechst 33258 staining. The mRNA expression levels of osteoblast-specific genes, Bax and caspase-3 were determined by real-time quantitative polymerase chain reaction (qPCR). Protein levels of osteoblast-specific genes, caspase-3, Bax, cytochrome c, Bcl-2, Bcl-XL, phosphorylated MAPKs and Wnt/beta-catenin were measured using Western blot assays. The MAPK and Wnt/beta-catenin signalling pathways were blocked prior to pretreatment with quercetin. RESULTS: Pretreatment with quercetin significantly restored LPS-suppressed bone mineralization and the mRNA and protein expression levels of osteoblast-specific genes such as Osterix (OSX), runt-related transcription factor 2 (Runx2), alkaline phosphatase (ALP) and osteocalcin (OCN) in a dose-dependent manner. Pretreatment with quercetin also inhibited osteoblast apoptosis, significantly restored the down-regulated expression of Bcl-2 and Bcl XL and decreased the upregulated expression of caspase-3, Bax, and cytochrome c in MC3T3-E1 cells induced by LPS. Furthermore, pretreatment with quercetin not only decreased the abundance of phosphorylated p38 MAPK and increased the abundance of phosphorylated extracellular signal regulated kinase (ERK), but also triggered the Wnt/beta-catenin pathway through enhancing expression of Wnt3 and beta-catenin. Pretreatment with MAPK inhibitors or the Wnt/beta-catenin inhibitor XAV939 blocked the protective effects of quercetin against LPS-induced apoptosis and the inhibition of osteoblast differentiation. CONCLUSIONS: Our findings suggest that pretreatment with quercetin may be a potential drug for preventing abnormal human bone loss induced by LPS in bacteria-induced bone diseases. PMID- 29035885 TI - ALS-Related Mutant FUS Protein Is Mislocalized to Cytoplasm and Is Recruited into Stress Granules of Fibroblasts from Asymptomatic FUS P525L Mutation Carriers. AB - BACKGROUND: Amyotrophic lateral sclerosis (ALS) shows a strong genetic basis, with SOD1, FUS, TARDBP, and C9ORF72 being the genes most frequently involved. This has allowed identification of asymptomatic mutation carriers, which may be of help in understanding the molecular changes preceding disease onset. OBJECTIVES: We studied the cellular expression of FUS protein and the effect of heat-shock- and dithiothreitol-induced stress in fibroblasts from FUS P525L mutation carriers, healthy controls, and patients with sporadic ALS. METHODS: Western blots and immunocytochemistry were performed to study the subcellular localization of FUS protein. Control and stressed cells were double stained with FUS and the stress marker TIA-R. RESULTS: Fibroblasts from healthy controls and sporadic ALS cases showed a prominent nuclear FUS expression. In the 2 FUS P525L mutation carriers, instead, most cells showed a protein localization in both nucleus and cytoplasm, or exclusively in the cytoplasm. Stress prompted the formation of cytoplasmic granules in all subjects and in sporadic ALS FUS mislocalization to the cytoplasm. Cytoplasmic FUS was recruited into stress granules, which showed a time-dependent decrease in all subjects. However, in the FUS P525L fibroblasts, the granules persisted longer, and they were more numerous than those detected in the cells from controls and sporadic ALS patients. CONCLUSIONS: We show that in fibroblasts of FUS P525L mutation carriers, FUS mislocalized to the cytoplasm where it redistributed into stress granules with likely a dose effect, i.e. a higher number of cells with granules, which persist longer, than in controls and ALS cases. These data represent an early molecular change occurring before ALS onset, suggesting a transient preaggregative state. PMID- 29035886 TI - Response Gene to Complement-32 Promotes the Imbalance of Treg/Th17 in Patients with Dilated Cardiomyopathy. AB - BACKGROUND/AIMS: The imbalance of Treg/Th17 cells plays important role in the pathogenesis of dilated cardiomyopathy (DCM). Response gene to complement (RGC) 32 is a cell cycle regulator that plays an important role in cell proliferation. We evaluated whether the upregulation of RGC-32 was implicated in the homeostasis of Treg/Th17 cells in DCM. METHODS: The levels of plasma RGC-32, IL-17 and TGF beta1, and the frequencies of circulating CD4+ RGC-32+ T cells, Th17 and Treg cells in patients with DCM were determined by Cytokine-specific sandwich ELISA and the flow cytometer (FCM), respectively. RESULTS: A significant elevation of plasma RGC-32 in patients with DCM compared with healthy control (HC) subjects was observed. This upregulation was associated with an increase in frequency of Th17 and a decrease in frequency of Treg cells. To further assessed the role of RGC-32, we investigated the effects of RGC-32 up- or down-regulation on frequencies of Th17 and Treg cells in peripheral blood mononuclear cells (PBMCs) from subjects. Importantly, overexpression of RGC-32 was accompanied by an augmentation of Th17 and a reduction of Treg expression. CONCLUSION: In summary, our study demonstrated the up-regulation of RGC-32 contributed to the imbalance of Treg/Th17 cells in patients with DCM. PMID- 29035887 TI - Valeriana officinalis Root Extract Modulates Cortical Excitatory Circuits in Humans. AB - BACKGROUND: Valeriana officinalis extract (VE) is a popular herbal medicine used for the treatment of anxiety and sleep disorders. Although the anxiolytic and sedative effects are mainly attributed to the modulation of GABA-ergic transmission, the mechanism of action has not been fully investigated in humans. Noninvasive brain stimulation protocols can be used to elucidate the mechanisms of action of psychoactive substances at the cortical level in humans. In this study, we investigated the effects of a single dose of VE on cortical excitability as assessed with transcranial magnetic stimulation (TMS). METHODS: Fifteen healthy volunteers participated in a double-blind, randomized, cross over, placebo-controlled study. Subjects were required to take either 900 mg of VE (valerenic acid 0.8%) or placebo (an equal dose of vitamin E). Motor cortex excitability was studied by single and paired TMS before and at 1 h and 6 h after the oral administration. Cortical excitability was assessed using different TMS parameters: resting motor threshold, motor-evoked potential amplitude, cortical silent period, short-interval intracortical inhibition, and intracortical facilitation. Furthermore, we assessed sensorimotor integration by short-latency and long-latency afferent inhibition. RESULTS: We found a significant reduction in ICF, without any significant changes in other TMS measures of motor cortex excitability. The amount of ICF returned to baseline value 6 h after the intake of the VE. CONCLUSION: A single oral dose of VE modulates intracortical facilitatory circuits. Our results in healthy subjects could be predictive markers of treatment response in patients and further support the use of pharmaco TMS to investigate the neuropsychiatric effects of herbal therapies in humans. PMID- 29035888 TI - Nitric Oxide Mediates Insect Cellular Immunity via Phospholipase A2 Activation. AB - After infection or invasion is recognized, biochemical mediators act in signaling insect immune functions. These include biogenic amines, insect cytokines, eicosanoids, and nitric oxide (NO). Treating insects or isolated hemocyte populations with different mediators often leads to similar results. Separate treatments with an insect cytokine, 2 biogenic amines, and an eicosanoid lead to a single result, hemocyte spreading, understood in terms of intracellular cross talk among these signaling systems. This study focuses on the cross-talk between NO and eicosanoid signaling in our model insect, Spodoptera exigua. Bacterial injection increased NO concentrations in the larval hemocytes and fat body, and RNA interference (RNAi) of the S. exigua NO synthase (NOS) gene suppressed NO concentrations. RNAi treatment also led to a significant reduction in hemocyte nodulation following bacterial injection. Similar RNAi treatments led to significantly reduced PLA2 activities in the hemocytes and fat body compared to control larvae. Injection of L-NAME also prevented the induction of PLA2 activity following bacterial challenge. An injected NO donor, S-nitroso-N-acetyl-DL penicillamine, increased PLA2 activity in a dose-dependent manner. However, eicosanoids did not influence NO concentrations in immune-challenged larvae. We infer that NO and eicosanoid signaling operate via cross-talk mechanisms in which the elevated NO concentrations activate PLA2 and eicosanoid biosynthesis, which finally mediates various immune responses. PMID- 29035889 TI - Inhibition of Suicidal Erythrocyte Death by Volasertib. AB - BACKGROUND/AIMS: The Polo-like kinase 1 (Plk1) inhibitor volasertib is used in the treatment of malignancy. Volasertib is partially effective by triggering suicidal death or apoptosis of tumor cells. Similar to apoptosis of nucleated cells, erythrocytes may enter suicidal cell death or eryptosis, which is characterized by cell membrane scrambling with phosphatidylserine translocation to the cell surface and by cell shrinkage. Stimulators of eryptosis include energy depletion, hyperosmotic shock, oxidative stress and excessive increase of cytosolic Ca2+ activity ([Ca2+]i). The present study explored, whether volasertib impacts on eryptosis. METHODS: Human erythrocytes have been exposed to energy depletion (glucose withdrawal for 48 hours), hyperosmotic shock (addition of 550 mM sucrose for 6 hours), oxidative stress (addition of 0.3 mM tert butylhydroperoxide [tBOOH] for 50 min) or Ca2+ ionophore ionomycin (1 uM for 60 min) in absence and presence of volasertib (0.5-1.5 ug/ml) and flow cytometry was employed to quantify phosphatidylserine exposure at the cell surface from annexin V-binding, cell volume from forward scatter, [Ca2+]i from Fluo3 fluorescence, reactive oxygen species from 2',7'-dichlorodihydrofluorescein diacetate (DCFDA) fluorescence and ceramide abundance utilizing antibodies. For comparison, annexin V-binding and forward scatter were determined following a 48 hours exposure of human leukemic K562 cells in RPMI-1640 medium to volasertib. RESULTS: Treatment with volasertib alone did not significantly modify annexin-V-binding or forward scatter in mature erythrocytes. Energy depletion, hyperosmotic shock, oxidative stress and ionomycin, all markedly and significantly increased the percentage of annexin-V-binding erythrocytes, and decreased the forward scatter. Volasertib significantly blunted the effect of energy depletion and hyperosmotic shock, but not of oxidative stress and ionomycin on annexin-V-binding. Volasertib did not significantly influence the effect of any maneuver on forward scatter. In K562 cells, volasertib enhanced annexin-V-binding and decreased the forward scatter. CONCLUSIONS: Volasertib is a novel inhibitor of erythrocyte cell membrane scrambling following energy depletion and hyperosmotic shock, effects contrasting the stimulation of K562 cell apoptosis. PMID- 29035890 TI - Biocharacterization of Heat Shock Protein 90 in Acetaminophen-Treated Livers Without Conspicuous Drug Induced Liver Injury. AB - BACKGROUND/AIMS: Acetaminophen (APAP) refers to a medication used to manage pain and fever symptoms. Heat shock protein 90 (Hsp90) is to be expressed during various stresses, such as wound healing and tissue remodeling. Recently, it is discovered that Hsp90 is a potential modifier of cytogenesis. In comparison to clinical references of liver damage, this study was designed to assess the potential bioeffect of Hsp90 in APAP-treated livers without conspicuous drug induced liver injury (DILI). METHODS: In our current study, human plasma samples of APAP-used patients were collected for biochemical assays in clinical parameters. Adult male mice were used to investigate the biocharacterization of Hsp90 in APAP-treated livers through serological tests and immunoassays. Further, a mouse liver cell strain was employed in assessment of bioeffect of APAP on hepatocellular Hsp90 expression. RESULTS: Correspondingly, the clinical data showed APAP-administered patients resulted in increased Hsp90 levels in serum when compared to other clinical parameters of liver injury. In adult mice study, APAP-treated livers showed unchanged hepatocellular and metabolic functions, as highlighted in biochemical analysis and immunoassay. Notably, Hsp90 expression in APAP-treated mice were elevated in the serum and liver samples. In quantitative western blot assay, the present data suggested that hepatocellular Hsp90 level was up-regulated followed by APAP treatment. In mouse cell strain study, APAP treated liver cells had increased trend of aminotransferase contents and apoptotic counts. Further, endogenous Hsp90 expression in APAP-exposed cells was increased dose- and time-dependently. CONCLUSIONS: In conclusion, our current findings disclose that Hsp90 biomolecule may be a potential indicator for APAP induced inconspicuous DILI, in which it seems to be characterized with more sensitive than other diagnosis criteria. PMID- 29035893 TI - Ultrasound-guided Lumbar Plexus Block in Supine Position. PMID- 29035892 TI - Patent Foramen Ovale as Possible Cause of Sudden Sensorineural Hearing Loss: A Case Report. AB - OBJECTIVE: To present a case of sudden sensorineural hearing loss (SSNHL) and the related diagnostic workup. CLINICAL PRESENTATION AND INTERVENTION: A 54-year-old man presented with a unilateral SSNHL episode and vertigo. A severe patent foramen ovale (PFO) that included a complete ear nose and throat, audiological, and neurological examination was discovered during the diagnostic workup. Audiometry, blood, and serological tests were performed. Magnetic resonance imaging and color Doppler echography of the supra-aortic trunks and lower limbs were carried out. Finally, transthoracic followed by transesophageal echocardiography and transcranial Doppler were performed in order to confirm the diagnosis of PFO. Medical therapy with systemic steroid and antiplatelet drugs was administered. CONCLUSIONS: This case showed a small PFO associated with an aneurysmatic interatrial septum. The PFO and paradoxical thromboembolism could be involved in the pathogenesis of SSNHL. PMID- 29035891 TI - Inhibiting ROS-TFEB-Dependent Autophagy Enhances Salidroside-Induced Apoptosis in Human Chondrosarcoma Cells. AB - BACKGROUND/AIMS: Autophagy modulation has been considered a potential therapeutic strategy for human chondrosarcoma, and a previous study indicated that salidroside exhibits significant anti-carcinogenic activity. However, the ability of salidroside to induce autophagy and its role in human chondrosarcoma cell death remains unclear. METHODS: We exposed SW1353 cells to different concentrations of salidroside (0.5, 1 and 2 mM) for 24 h. RT-PCR, Western blotting, Immunocytofluorescence, and Luciferase Reporter Assays were used to evaluate whether salidroside activated the TFEB-dependent autophagy. RESULTS: We show that salidroside induced significant apoptosis in the human chondrosarcoma cell line SW1353. In addition, we demonstrate that salidroside-induced an autophagic response in SW1353 cells, as evidenced by the upregulation of LC3-II and downregulation of P62. Moreover, pharmacological or genetic blocking of autophagy enhanced salidroside -induced apoptosis, indicating the cytoprotective role of autophagy in salidroside-treated SW1353 cells. Salidroside also induced TFEB (Ser142) dephosphorylation, subsequently to activated TFEB nuclear translocation and increase of TFEB reporter activity, which contributed to lysosomal biogenesis and the expression of autophagy-related genes. Importantly, we found that salidroside triggered the generation of ROS in SW1353 cells. Furthermore, NAC, a ROS scavenger, abrogated the effects of salidroside on TFEB dependent autophagy. CONCLUSIONS: These data demonstrate that salidroside increased TFEB-dependent autophagy by activating ROS signaling pathways in human chondrosarcoma cells. These data also suggest that blocking ROS-TFEB-dependent autophagy to enhance the activity of salidroside warrants further attention in treatment of human chondrosarcoma cells. PMID- 29035894 TI - Prevalence of Potentially Distracting Noncare Activities and Their Effects on Vigilance, Workload, and Nonroutine Events during Anesthesia Care. AB - BACKGROUND: When workload is low, anesthesia providers may perform non-patient care activities of a clinical, educational, or personal nature. Data are limited on the incidence or impact of distractions on actual care. We examined the prevalence of self-initiated nonclinical distractions and their effects on anesthesia workload, vigilance, and the occurrence of nonroutine events. METHODS: In 319 qualifying cases in an academic medical center using a Web-based electronic medical chart, a trained observer recorded video and performed behavioral task analysis. Participant workload and response to a vigilance (alarm) light were randomly measured. Postoperatively, participants were interviewed to elicit possible nonroutine events. Two anesthesiologists reviewed each event to evaluate their association with distractions. RESULTS: At least one self-initiated distraction was observed in 171 cases (54%), largely during maintenance. Distractions accounted for 2% of case time and lasted 2.3 s (median). The most common distraction was personal internet use. Distractions were more common in longer cases but were not affected by case type or American Society of Anesthesiologists physical status. Workload ratings were significantly lower during distraction-containing case periods and vigilance latencies were significantly longer in cases without any distractions. Three distractions were temporally associated with, but did not cause, events. CONCLUSIONS: Both nurse anesthetists and residents performed potentially distracting tasks of a personal and/or educational nature in a majority of cases. Self-initiated distractions were rarely associated with events. This study suggests that anesthesia professionals using sound judgment can self-manage nonclinical activities. Future efforts should focus on eliminating more cognitively absorbing and less escapable distractions, as well as training in distraction management. PMID- 29035895 TI - A Large Anterior Mediastinal Mass. PMID- 29035896 TI - Intraoperative Phototherapy for Hyperbilirubinemia. PMID- 29035897 TI - Images in Anesthesiology: A Clot in Transit: Impending Paradoxical Embolization. PMID- 29035898 TI - Intraoral Lipomas. PMID- 29035899 TI - Driveline Site Is Not a Predictor of Infection After Ventricular Assist Device Implantation. AB - Driveline infections (DLIs) remain a major source of morbidity for patients requiring long-term ventricular assist device (VAD) support. We aimed to assess whether VAD driveline exit site (DLES) (abdomen versus chest wall) is associated with DLI. All adult patients who underwent insertion of a HeartWare HVAD or HeartMate II (HMII) between 2009 and 2016 were included. Driveline infection was defined as clinical evidence of DLI accompanied by a positive bacterial swab and need for antibiotics. Competing risks analysis was used to assess the association between patient characteristics and DLI. Ninety-two devices (59 HMII) were implanted in 85 patients (72 men; median age 57.4 years) for bridge to transplant or destination therapy. VAD DLES was chest in 28 (30.4%) devices. Median time on VAD support was 347.5 days (IQR 145.5, 757.5), with 28 transplants and 29 deaths (27 on device). DLI occurred in 24 patients (25 devices) at a median of 140 days (IQR 67, 314) from implant. Staphylococcus aureus accounted for 15 infections (60%). Freedom from infection was 72.8% (95% confidence interval [CI] 53.1-78.0%) at 1 year and 41.9% (95% CI 21.1-61.5%) at 3 years. In competing risks regression, abdominal DLES was not predictive of DLI (hazard ratio, HR 1.65 [95% CI 0.63, 4.29]), but body mass index (BMI) >30 kg/m was (HR 2.72 [95% CI 1.25, 5.92]). In conclusion, risk of DLI is high among patients on long-term VAD support, and a nonabdominal DLES does not reduce this risk. The only predictor of DLI in this series was an elevated BMI. PMID- 29035900 TI - CE: Original Research: Primary Care Providers and Screening for Military Service and PTSD. AB - : : Background: Most veterans have the option of receiving their health care from the Veterans Health Administration or through primary care providers in the private sector. However, there is some evidence that fewer than half of community based, private sector primary care and mental health providers screen their patients for military service, particularly in rural areas, leaving these veterans less likely to be screened for posttraumatic stress disorder (PTSD) and other military service-related conditions. PURPOSE: To determine whether primary care providers in the private sector are screening patients for military service and subsequent PTSD. METHODS: We designed and piloted a survey to determine whether primary care providers in a rural Pennsylvania region routinely screen for military service and service-related PTSD. We distributed the survey to a convenience sample of more than 250 primary care providers in central and western Pennsylvania through the U.S. Postal Service, via Facebook, and via work e-mails for those who worked in a local health system. RESULTS: Among 50 eligible respondents, only four (8%) said they screen all their patients for military service, and 20 (40%) reported screening none; only two respondents (4%) screened all their patients who have served in the military for PTSD, and 30 (60%) screened none. CONCLUSION: Veterans who rely on private sector providers may not receive evidence-based care for military service-related health problems, including PTSD. To improve care for these patients, providers in the private sector should be educated on why all patients should be screened for military service, how to conduct such screening properly, and veterans' general health concerns. PMID- 29035901 TI - CE: Preeclampsia: Current Approaches to Nursing Management. AB - : Preeclampsia, one of four hypertensive disorders of pregnancy, has traditionally been characterized as new-onset hypertension and proteinuria developing after 20 weeks' gestation. It is, however, now understood to be a complex, progressive, multisystem disorder with a highly variable presentation and a number of potentially life-threatening complications. The American College of Obstetricians and Gynecologists Task Force on Hypertension in Pregnancy has refined preeclampsia diagnostic criteria accordingly, and as the disorder's pathogenesis has been more clearly defined, new targets for screening, diagnosis, prevention, and treatment have emerged. This clinical update provides a review of current practice related to preeclampsia risk assessment, prediction, and management. It discusses preeclampsia pathophysiology and points readers to valuable health care resources on the topic. PMID- 29035902 TI - Comparison of Direct Patient Care Costs and Quality Outcomes of the Teaching and Nonteaching Hospitalist Services at a Large Academic Medical Center. AB - PURPOSE: To compare costs of care and quality outcomes between teaching and nonteaching hospitalist services, while testing the assumption that resident driven care is more expensive. METHOD: Records of inpatients with the top 20 Medicare Severity Diagnosis-Related Groups admitted to the University Teaching Service (UTS) and nonteaching hospitalist service (NTHS) at Houston Methodist Hospital from 2014-2015 were analyzed retrospectively. Direct costs of care, length of stay (LOS), in-hospital mortality (IHM), 30-day readmission rate (30DRR), and consultant utilization were compared between the UTS and NTHS. Propensity score matching and case mix index (CMI) were used to mitigate differences in baseline characteristics. To compare outcomes between matched groups, the Wilcoxon rank sum test and chi-square test were used. A sensitivity analysis was conducted using multivariable regression analysis. RESULTS: From the overall study population of 8,457 patients, 1,041 UTS and 3,123 NTHS patients were matched. CMI was 1.07 for each group. The UTS had lower direct costs of care per case ($5,028 vs. $5,502, P = .006), lower LOS (4.7 vs. 5.2 days, P = .0002), and lower consultant utilization (1.0 vs. 1.6, P <= .0001) versus the NTHS. The UTS and NTHS 30DRR (17.2% vs. 19.3%, P = .110) and IHM (2.9% vs. 3.7%, P = .206) were comparable. The multivariable regression analysis validated the matched data and identified an incremental cost savings of $333/UTS patient. CONCLUSIONS: Patients of an academic hospitalist service had significantly shorter LOS, fewer consultants, and lower direct care costs than comparable patients of a nonteaching service. PMID- 29035903 TI - The Future of Obstetrics and Gynecology: MACRA, Electronic Health Records, and More. AB - There is immense change affecting obstetrical and gynecologic medical practice at this moment in time-involving reimbursement with the shift from volume-based to value-based care, increasing regulation, and workforce sustainability. Aspects to be reviewed in this chapter include reimbursements and Medicare Access and CHIP Reauthorization Act of 2015 (MACRA), electronic medical records, physician satisfaction surveys, maintenance of certification, and physician burnout. PMID- 29035904 TI - Improvement in cognitive abilities following cabergoline treatment in patients with a prolactin-secreting pituitary adenoma. AB - Hyperprolactinaemia may affect sexual and reproductive functioning. However, recent studies suggest that increased prolactin levels may also have negative effects on cognition. We aimed to study whether the reduction in prolactin levels by cabergoline in patients with hyperprolactinaemia is followed by an improvement in cognitive tasks. We studied seven patients with hyperprolactinaemia caused by a prolactinoma that had an indication to start treatment with cabergoline. All patients were assessed twice (baseline and 6-12 months after cabergoline treatment) with a cognitive battery. Plasma prolactin levels were determined. We found a significant improvement in the speed of processing, working memory, visual learning and reasoning and problem-solving domains after cabergoline treatment. Improvements in speed of processing and reasoning and problem solving were greater in patients with baseline prolactin levels above the median. In summary, a reduction in prolactin levels by cabergoline in patients with hyperprolactinaemia is followed by an improvement in cognitive abilities. This finding suggests that prolactin may be involved in cognitive processes, although cabergoline could also have procognitive effects that are independent of prolactin changes. Further clinical trials are needed to confirm the potential cognitive-enhancement properties of cabergoline in patients with chronic hyperprolactinaemia. PMID- 29035905 TI - Hospital-Community Partnerships to Aid Transitions for Older Adults: Applying the Care Transitions Framework. AB - This study examined the implementation and hospitalwide scaling of a community based transitional care program to reduce readmissions among adults 65 years or older. Our analysis was guided by the Care Transitions Framework and was based on semistructured interviews with program implementers to identify intervention successes, barriers, and outcomes beyond reducing readmissions. Such outcomes included the program's critical role in providing a safety net and transition to more advanced care, and redefining intervention success from more patient centered perspectives. PMID- 29035906 TI - Effectiveness of a Multifaceted Delirium Screening, Prevention, and Treatment Initiative on the Rate of Delirium Falls in the Acute Care Setting. AB - Delirium is a potentially modifiable fall risk factor, but few studies address the effects of delirium programs on falls. Beginning in 2011, we implemented a nursing-driven hospitalwide delirium program targeting improvements in risk identification, prevention, detection, and treatment. Over the course of the program, delirium falls decreased from 0.91 to 0.50 per patient day (P = .0002). A decrease in overall falls was also noted (P = .0007). PMID- 29035908 TI - Infantile Myofibroma of the Carotid Space Presenting as Horner Syndrome. PMID- 29035910 TI - New predictive factors of poor response to therapy in autoimmune hepatitis: role of mean platelet volume. AB - BACKGROUND AND OBJECTIVES: The response to immunosuppressive therapy in autoimmune hepatitis (AIH) is a matter of debate. The aim of this work is to identify the histological, biochemical, and clinical predictive factors of incomplete response/treatment failure to the standard treatment (prednisone with or without azathioprine) in a well-characterized series of AIH Egyptian patients. PATIENTS AND METHODS: Of 49 AIH patients, only 36 patients completed this retrospective cohort study. The immunological, biochemical, histopathological, and clinical characteristics of patients were evaluated at diagnosis and during follow-up. RESULTS: Patients were classified into two groups; group A showed a complete response to therapy (n=22; 61%) and group B showed partial response/treatment failure (n=14; 39%). In a multivariate analysis, we observed that age at diagnosis up to 22 years [odds ratio (OR): 23.22; confidence interval (CI): 3.978-135.549; P<0.001], serum albumin up to 3.2 g/dl (OR: 5.36; CI: 1.237 23.209; P=0.025), mean platelet volume (MPV) of at least 10.75 fl (OR: 16.5; CI: 3.093-88.037; P<0.001), and presence of cirrhosis at diagnosis (OR: 8.44; CI: 1.682-42.392; P=0.001) were independent variables that can predict partial response/treatment failure. MPV correlated positively with stages of fibrosis/cirrhosis and grades of activity in liver biopsy at diagnosis and correlated inversely with serum albumin and age at presentation. During therapy, group B showed a fluctuation in MPV levels, however, group A showed a progressive decline until the end point. CONCLUSION: Our study confirmed that younger age, hypoalbuminemia, increased MPV, and cirrhosis at diagnosis were all independent predictors of incomplete response/treatment failure in AIH patients. MPV may reflect the response to therapy. PMID- 29035911 TI - Ab Interno Gel Implant for the Treatment of Glaucoma Patients With or Without Prior Glaucoma Surgery: 1-Year Results. AB - PURPOSE: The purpose of this study is to evaluate IOP lowering effects and complication management of an ab interno gel implant for the treatment of patients refractory to antiglaucoma medication or glaucoma surgery. METHODS: Retrospective analysis of the medical records of 242 consecutive eyes of 146 patients with uncontrolled intraocular pressure (IOP) despite maximum tolerated medical therapy or prior surgical intervention that underwent XEN45 implantation (as sole procedure or in combination with cataract surgery) between March 2014 and June 2015. Data included IOP, number of glaucoma medications, the need for additional surgery, needling, and complications. RESULTS: During the study period, mean IOP had decreased by 54.1% from 32.19 (+/-9.1) mm Hg to 14.24 (+/ 4.0) mm Hg (P=0.00; Wilcoxon test). The number of antiglaucoma medications had decreased from a mean of 3.13+/-1.0 to 0.3+/-0.7 (P=0.00; Wilcoxon test). Needling was required between week 1 and months 3 in 27.7% of all eyes to enhance the outflow. Hypotony (IOP<6 mm Hg) was observed in 9 eyes (4.0%) at 1 month but normalized in all eyes at 12 months postoperatively. Two eyes experienced hypotony requiring the refill of the anterior chamber. CONCLUSIONS: Our data indicate that the XEN45 gel implant has a favorable safety profile and is an effective treatment option for controlling IOP in glaucoma patients with unregulated IOP despite IOP lowering medical therapy or prior surgical intervention. It offers an effective approach, both as sole procedure and in combination with cataract surgery. PMID- 29035912 TI - Surgical Outcomes of Gonioscopy-assisted Transluminal Trabeculotomy (GATT) in Patients With Open-angle Glaucoma. AB - PURPOSE: To evaluate the efficacy and safety of gonioscopy-assisted transluminal trabeculotomy (GATT) in patients with open-angle glaucoma. PARTICIPANTS AND METHODS: A retrospective chart review of adult patients who underwent GATT due to inadequately controlled intraocular pressure (IOP) or intolerance to medication. Main outcome measures were success rate, IOP, and number of glaucoma medications. Success was defined as IOP reduction >20% from baseline or IOP between 5 to 21 mm Hg, and no need for further glaucoma surgery. When success criteria were not met for any postoperative visit >3 months after surgery, failure was determined. RESULTS: In total, 66 patients, average age 62.9+/-14.9 years (50.8% female) were included in the analysis. Average follow-up was 11.9 months (range, 3 to 30 mo) and overall success rate was 63.0%. Mean IOP was 26.1+/-9.9 mm Hg preoperatively and 14.6+/-4.7 mm Hg at 12 months (44% IOP decrease; P<0.001). Mean number of medications decreased from 3.1+/-1.1 preoperatively to 1.2+/-0.9 at 12 months (P<0.001). No significant differences between patients with primary open-angle glaucoma and other types of glaucoma were found.The rate of hyphema at 1 week and 1 month postoperatively was 38% and 6%, respectively. Overall GATT success rate among white and black patients was 69% and 42%, respectively, which was statistically significant (P<0.05). CONCLUSIONS: The future of GATT as a minimally invasive glaucoma surgery in adults seems promising. This position is supported by its low rate of long-term complications and the conjunctiva-sparing nature of the surgery. PMID- 29035909 TI - Dysregulated myelopoiesis and hematopoietic function following acute physiologic insult. AB - PURPOSE OF REVIEW: The purpose of this review is to describe recent findings in the context of previous work regarding dysregulated myelopoiesis and hematopoietic function following an acute physiologic insult, focusing on the expansion and persistence of myeloid-deriver suppressor cells, the deterioration of lymphocyte number and function, and the inadequacy of stress erythropoiesis. RECENT FINDINGS: Persistent myeloid-derived suppressor cell (MDSC) expansion among critically ill septic patients is associated with T-cell suppression, vulnerability to nosocomial infection, chronic critical illness, and poor long term functional status. Multiple approaches targeting MDSC expansion and suppressor cell activity may serve as a primary or adjunctive therapeutic intervention. Traumatic injury and the neuroendocrine stress response suppress bone marrow erythropoietin receptor expression in a process that may be reversed by nonselective beta-adrenergic receptor blockade. Hepcidin-mediated iron restricted anemia of critical illness requires further investigation of novel approaches involving erythropoiesis-stimulating agents, iron administration, and hepcidin modulation. SUMMARY: Emergency myelopoiesis is a dynamic process with unique phenotypes for different physiologic insults and host factors. Following an acute physiologic insult, critically ill patients are subject to persistent MDSC expansion, deterioration of lymphocyte number and function, and inadequate stress erythropoiesis. Better strategies are required to identify patients who are most likely to benefit from targeted therapies. PMID- 29035913 TI - The Water-drinking Test and Glaucoma Progression: Considerations Regarding the Test Usefulness as an Independent Risk Assessment Tool. PMID- 29035914 TI - Extracorporeal Membrane Oxygenation Is First-Line Therapy for Acute Respiratory Distress Syndrome. PMID- 29035915 TI - The shape of things to come in lipid management: a feast of reason. PMID- 29035916 TI - Observe to get pain relief: current evidence and potential mechanisms of socially learned pain modulation. PMID- 29035918 TI - Dopaminergic mechanisms in periaqueductal gray-mediated antinociception. AB - As important as perceiving pain is the ability to modulate this perception in some contextual salient situations. The periaqueductal gray (PAG) is perhaps the most important site of endogenous pain modulation; however, little is known about dopaminergic mechanisms underlying PAG-mediated antinociception. In this study, we used a pharmacological approach to evaluate this subject. We found that u opioid receptor-induced antinociception (DAMGO, 0.3 MUg) from PAG was blocked by the coadministration of either D1-like or D2-like dopaminergic antagonists (SCH23390, 2, 4, and 6 MUg or raclopride, 2 and 4 MUg, respectively) both in the tail-flick and in the mechanical paw-withdrawal test. A selective D2-like receptor agonist (piribedil, 6 and 12 MUg into the PAG) induced antinociception in the mechanical paw-withdrawal test, but not in the tail-flick test. This effect was blocked by the coadministration of its selective antagonist (raclopride 4 MUg), as well as by either a GABAA agonist (muscimol, 0.1 MUg) or an opioid receptor antagonist (naloxone, 0.5 MUg). A selective D1-like receptor agonist (SKF38393, 1, 5, and 10 MUg into the PAG) induced a poor and transient antinociceptive effect, but when combined with piribedil, a potentiated antinociceptive effect emerged. None of these treatments affected locomotion in the open-field test. These findings suggest that u-opioid antinociception from the PAG depends on dopamine acting on both D1-like and D2-like receptors. Selective activation of PAG D2-like receptors induces antinociception mediated by supraspinal mechanisms dependent on inhibition of GABAA and activation of opioid neurotransmission. PMID- 29035917 TI - Decreases in smoking during treatment for methamphetamine-use disorders: preliminary evidence. AB - Despite high rates of smoking (70-90%) and the severely negative impact of smoking on physical and mental health, only 12% of individuals receiving stimulant-use disorder treatment also receive smoking-cessation treatment. The aim of this investigation was to examine the effect of a contingency management (CM) intervention targeting methamphetamine (MA) use on cigarette smoking. Sixty one adults with MA-use disorders who were smokers were assigned to CM or standard psychosocial treatment. Rates of smoking-negative breath samples (carbon monoxide <3 ppm) were compared between the two groups while controlling for baseline carbon monoxide level, marijuana use, MA use, and time. This subgroup of mostly male (59%) participants included 44 participants in the CM group and 17 participants in the standard psychosocial treatment. Tobacco smoking participants who received CM targeting MA use were 140% (odds ratio: 2.395; 95% confidence interval: 1.073-5.346) more likely to submit a smoking-negative breath sample relative to standard psychosocial treatment during the treatment period, holding constant several other prespecified covariates. This study provides evidence that a behavioral treatment for MA use results in reductions in cigarette smoking in adults with MA-use disorder. PMID- 29035920 TI - The antidepressant-like effects of sinomenine in mice: a behavioral and neurobiological characterization. AB - Sinomenine is a bioactive alkaloid extracted from Sinomenium acutum. Here, we investigated the antidepressant effects of sinomenine in mice. The antidepressant actions of sinomenine were first examined in the forced-swim test and the tail suspension test, and then assessed in the chronic social defeat stress (CSDS) model of depression. Changes in the brain-derived neurotrophic factor (BDNF) signaling pathway after CSDS and sinomenine treatment were also investigated. A tryptophan hydroxylase inhibitor and a BDNF signaling inhibitor were also used to determine the pharmacological mechanisms of sinomenine. It was found that sinomenine induced antidepressant-like effects in the forced-swim test and tail suspension test without affecting the locomotor activity of mice. Sinomenine also prevented the CSDS-induced depressive-like symptoms. Moreover, sinomenine fully restored the CSDS-induced decrease in the hippocampal BDNF signaling pathway, whereas a BDNF signaling inhibitor, but not a tryptophan hydroxylase inhibitor, blocked the antidepressant effects of sinomenine. In conclusion, sinomenine exerts antidepressant effects in mice by promoting the hippocampal BDNF signaling pathway. PMID- 29035919 TI - Attenuation of compulsive-like behavior by fluvoxamine in a non-induced mouse model of obsessive-compulsive disorder. AB - The current study evaluated the role of strain and compulsive trait differences in response to fluvoxamine, a common obsessive-compulsive disorder (OCD) drug, in two different mouse strains (BIG1 and BIG2) with a spontaneous compulsive-like phenotype. For compulsive-like nest-building behavior, dose-dependent attenuation of nesting by fluvoxamine was observed for the BIG1 compulsive-like strain during the first hour after administration. No significant differences were found for the BIG2 strain during the first hour, although a dose-dependent trend similar to that in the BIG1 strain was observed. Fluvoxamine dose dependently decreased the number of marbles buried in both strains 1 h after administration. For anxiety like behaviors in the open field, no significant drug effects were found for the latency to leave the center and the number of line crossings. Significant strain differences were observed, with the BIG2 strain showing higher anxiety-like behaviors and reduced locomotor activity compared with the BIG1 strain. Consequently, this study adds predictive validity to our mouse model of OCD, whereas the anxiety-like differences between the strains add heterogeneity to our mouse model, similar to the heterogeneity observed in OCD. PMID- 29035921 TI - Biphasic effects of selective serotonin reuptake inhibitors on anxiety: rapid reversal of escitalopram's anxiogenic effects in the novelty-induced hypophagia test in mice? AB - In humans, chronic treatment with selective serotonin reuptake inhibitors (SSRIs) decreases anxiety, unlike acute treatment, which can increase anxiety. Although this biphasic pattern is observed clinically, preclinical demonstrations are rare. In an animal model of antidepressant-induced anxiolytic effects, the novelty-induced hypophagia (NIH) test, a single administration of the SSRI citalopram reportedly elicited anxiogenic-like effects, whereas three administrations over 24 h were sufficient to produce anxiolytic-like effects. Extending these findings, the present study examined the effects of acute and repeated escitalopram in a similar NIH test in a commonly used mouse strain (i.e. C57BL/6J), analyzing results with a method (i.e. survival analysis) that can model the skewed distribution of latencies to consume food and that can deal with censored data (i.e. when consumption does not occur during the test). Saline treated mice showed robust NIH. Acute escitalopram enhanced NIH, but did so only at a dose (i.e. 32 mg/kg) that similarly enhanced hypophagia in a familiar environment. The effects of escitalopram on NIH did not significantly change after repeated (three times) administration over 24 h. Additional studies are necessary to delineate the conditions under which rapid reversal of SSRI-induced anxiety can be modeled in animals using the NIH test. PMID- 29035922 TI - Effect of Scattering and Aberrations on Visual Acuity for Band Keratopathy. AB - SIGNIFICANCE: The progressive accumulation of the calcification may deteriorate corneal transparency, especially in the interpalpebral area, and subsequent visual performance for patients with band keratopathy. However, the detailed quantitative analysis of light scattering or higher-order aberrations on visual performance for these patients so far has not been elucidated. PURPOSE: The aim of this study was to assess the relationship of intraocular forward scattering, corneal backward scattering, and corneal higher-order aberrations with visual acuity in eyes with band keratopathy. METHODS: This prospective study comprised 27 eyes of 27 consecutive patients who were diagnosed as having band keratopathy and age-matched 27 eyes of 27 healthy subjects. We quantitatively assessed objective scattering index using the double-pass instrument (Optical Quality Analysis System II; Visiometrics, Terrassa, Spain), corneal densitometry using the Scheimpflug rotating camera (Pentacam HR; Oculus, Wetzlar, Germany), and corneal higher-order aberrations using the Hartmann-Shack aberrometry (KR-9000; Topcon, Tokyo, Japan). RESULTS: The mean objective scattering index, corneal densitometry, corneal higher-order aberrations, and logarithm of the minimal angle of resolution (logMAR) visual acuity in eyes with band keratopathy were 5.14 +/- 3.11, 36.42 +/- 10.55 gray-scale units, 0.33 +/- 0.10 MUm, and 0.03 +/- 0.11 logMAR, respectively. These parameters were significantly larger in the band keratopathy group than in those in the control group (Mann-Whitney U test, P < .001). We found significant correlations of visual acuity with the objective scattering index (Spearman correlation coefficient, r = 0.465, P = .015), but no significant association with the corneal densitometry (r = 0.082, P = .683) or with corneal higher-order aberrations (r = -0.073, P = .718), in eyes having band keratopathy. CONCLUSIONS: Intraocular forward scattering, corneal backward scattering, and corneal higher-order aberrations in eyes with band keratopathy were significantly higher than those in normal eyes. Visual acuity was significantly correlated with intraocular forward scattering, but not with corneal backward scattering or corneal aberrations in the band keratopathy group, suggesting that intraocular forward scattering plays a vital role in visual performance in eyes with band keratopathy. PMID- 29035923 TI - Randomized Trial of Desktop Humidifier for Dry Eye Relief in Computer Users. AB - SIGNIFICANCE: Dry eye is a frequently reported problem among computer users. Low relative humidity environments are recognized to exacerbate signs and symptoms of dry eye, yet are common in offices of computer operators. Desktop USB-powered humidifiers are available commercially, but their efficacy for dry eye relief has not been established. PURPOSE: This study aims to evaluate the potential for a desktop USB-powered humidifier to improve tear-film parameters, ocular surface characteristics, and subjective comfort of computer users. METHODS: Forty-four computer users were enrolled in a prospective, masked, randomized crossover study. On separate days, participants were randomized to 1 hour of continuous computer use, with and without exposure to a desktop humidifier. Lipid-layer grade, noninvasive tear-film breakup time, and tear meniscus height were measured before and after computer use. Following the 1-hour period, participants reported whether ocular comfort was greater, equal, or lesser than that at baseline. RESULTS: The desktop humidifier effected a relative difference in humidity between the two environments of +5.4 +/- 5.0% (P < .001). Participants demonstrated no significant differences in lipid-layer grade and tear meniscus height between the two environments (all P > .05). However, a relative increase in the median noninvasive tear-film breakup time of +4.0 seconds was observed in the humidified environment (P < .001), which was associated with a higher proportion of subjects reporting greater comfort relative to baseline (36% vs. 5%, P < .001). CONCLUSIONS: Even with a modest increase in relative humidity locally, the desktop humidifier shows potential to improve tear-film stability and subjective comfort during computer use.Trial registration no: ACTRN12617000326392. PMID- 29035924 TI - Rotational therapy in thoracic injuries: what is the evidence? AB - PURPOSE OF REVIEW: To review the current use of continuous lateral rotational therapy (CLRT) in patients with thoracic injuries and its impact on clinical course, complications and outcome. RECENT FINDINGS: Patient positioning is a key factor in the treatment of severe thoracic injuries and CLRT, and intermittent supine and prone position are basic options. There is a lack of randomized controlled studies for trauma patients with chest injury undergoing kinetic therapy as standard of care. A positive effect of kinetic therapy for prevention of secondary respiratory complications has been reported; nevertheless, no positive effect on mortality or length of hospital stay could be affirmed so far. In general, standardized therapeutic regimes for treatment of chest trauma have been implemented, including ventilator settings and positioning therapy. However, the available data do not allow a clear recommendation for rotational/kinetic therapy or prone positioning as superior or inferior. SUMMARY: The benefit of changing the patients' position for secret mobilization and recruitment of atelectasis after chest trauma and therefore preventing secondary complications seems to be self-evident. Since only few studies report about the utility of CLRT in critically ill chest trauma patients, randomized controlled multicenter trials are necessary to analyze the overall benefit of such means. PMID- 29035925 TI - Acute kidney injury in trauma patients. AB - PURPOSE OF REVIEW: To review epidemiology and pathophysiology of acute kidney injury (AKI) in trauma patients and propose strategies that aim at preventing AKI after trauma. RECENT FINDINGS: AKI in trauma patients has been reported to be as frequent as 50% with an association to a prolonged length of stay and a raise in mortality. Among the specific risk factors encountered in trauma patients, hemorrhagic shock, rhabdomyolysis severity, age, and comorbidities are independently associated with AKI occurrence. Resuscitation with balanced solutes seems to have beneficial effects on renal outcome compared with NaCl 0.9%, particularly in the context of rhabdomyolysis. However, randomized clinical studies are needed to confirm this signal. Abdominal compartment syndrome (ACS) is rare but has to be diagnosed to initiate a dedicated therapy. SUMMARY: The high incidence of AKI in trauma patients should lead to early identification of those at risk of AKI to establish a resuscitation strategy that aims at preventing AKI. PMID- 29035926 TI - Damage control surgery: current state and future directions. AB - PURPOSE OF REVIEW: Damage control surgery (DCS) represents a staged surgical approach to the treatment of critically injured trauma patients. Originally described in the context of hepatic trauma and postinjury-induced coagulopathy, the indications for DCS have expanded to the management of extra abdominal trauma and to the management of nontraumatic acute abdominal emergencies. Despite being an accepted treatment algorithm, DCS is based on a limited evidence with current concerns of the variability in practice indications, rates and adverse outcomes in poorly selected patient cohorts. RECENT FINDINGS: Recent efforts have attempted to synthesize evidence-based indication to guide clinical practice. Significant progress in trauma-based resuscitation techniques has led to improved outcomes in injured patients and a reduction in the requirement of DCS techniques. SUMMARY: DCS remains an important treatment strategy in the management of specific patient cohorts. Continued developments in early trauma care will likely result in a further decline in the required use of DCS in severely injured patients. PMID- 29035927 TI - The 2018 landscape of RA, PsA, and SpA pathogenesis. PMID- 29035928 TI - What did we learn from 'omics' studies in osteoarthritis. AB - PURPOSE OF REVIEW: 'Omics' technologies developed for the massive analysis of the major biologically relevant molecules (genes, proteins, metabolites) have been applied to the study of osteoarthritis (OA) for more than a decade. RECENT FINDINGS: 'Omics' studies have undoubtedly contributed to increase the knowledge on pathogenic processes related with OA and have provided hundreds to thousands of molecules that might have a putative biomarker utility for this disease. SUMMARY: This review describes the most recent 'omics' studies in OA research, their conclusions, and discuss those remaining challenges. Still many validation studies must be performed in large and well-characterized cohorts for the translation of the findings from 'omics' strategies to clinical applications. The development of tools for the intelligent integration of 'omics' data with clinical and imaging information is also mandatory to take full profit of the work that has been already performed. PMID- 29035929 TI - Vasculitis 2018: the bench and the bedside. PMID- 29035930 TI - Usefulness of PET in recognizing and managing vasculitides. AB - PURPOSE OF REVIEW: The aim of this article was to review the recent contributions to the scoring methods of PET in vasculitis as well as to its role in the diagnostic work-up. RECENT FINDINGS: Both visual and semiquantitative scoring methods can be used to interpret PET scans. PET has been shown to be both sensitive and specific in the diagnosis of large-vessel vasculitis. In addition, it also has a role in predicting vascular complications. SUMMARY: There is a need to better standardize the scoring methods used to interpret PET scans. In clinical practice, PET is useful to diagnose untreated individuals with suspected large-vessel vasculitis and contributes to identify patients at risk for vascular complications. PMID- 29035931 TI - Bioactive lipids in osteoarthritis: risk or benefit? AB - PURPOSE OF REVIEW: Lipids are bioactive molecules that can affect several biological functions. Technological developments allowing identification of novel lipid species and the study of their function have led to a significant advance in our understanding of lipid biology and their involvement in various diseases. This is particularly relevant for diseases associated with obesity in which lipid accumulation could be involved in pathogenesis. Here, we focus on osteoarthritis, a chronic joint disease aggravated by obesity, and will present the latest findings regarding the involvement of lipids in disease development and progression. RECENT FINDINGS: Recent studies indicate a possible involvement of n 3 poly-unsaturated fatty acid and their anti-inflammatory and proresolving derivatives in osteoarthritis. These lipids were identified in the osteoarthritis joint, were found to have beneficial effects on cartilage in vitro and reduced pain in humans and animal models. Moreover, increased levels of cholesterol transport molecules, such as LDL particles, were recently associated with a higher risk of developing hand osteoarthritis in women and with more severe inflammation and osteophyte formation in osteoarthritis animal models. SUMMARY: Together, these findings indicate that lipids are a promising target for future therapeutic intervention in osteoarthritis and open exciting possibilities for future research. PMID- 29035933 TI - Psoriatic arthritis: new evidence for old concepts. AB - PURPOSE OF REVIEW: The review gives an updated overview of some of the new concepts in the management of psoriatic arthritis (PsA): early diagnosis, remission as an objective, treat-to-target, and treatment guidelines. RECENT FINDINGS: Early diagnosis, targeting remission as part of a treatment strategy, and new guidelines providing evidence-based support to these concepts are main topics in recent publications. SUMMARY: Dermatologists and rheumatologists should work together to reduce the number of patients remaining undiagnosed, and the time to do so.Remission definition in PsA is still controversial. There is good evidence and convincing arguments for both multidimensional measures, such as minimal disease activity, or unidimensional ones, as disease activity index for PsA. New data on the analysis of tight control of inflammation in early PsA trial showed that the strategy might not be cost-effective on the short term, and that oligoarthritis is less benefited.The new European League Against Rheumatism and Group for Research and Assessment of Psoriasis and PsA recommendations exhibit differences. Methotrexate and tumor necrosis factor inhibitors are favored in European League Against Rheumatism guidelines, whereas other conventional synthetic disease-modifying antirheumatic drugs and biologics are equally positioned in Group for Research and Assessment of Psoriasis and PsA recommendations. PMID- 29035934 TI - Dextrometorphan-Paroxetine, But Not Dronabinol, Effective for Treatment-Resistant Aggression and Agitation in an Elderly Patient With Lewy Body Dementia. PMID- 29035932 TI - Extracellular vesicles in cartilage homeostasis and osteoarthritis. AB - PURPOSE OF REVIEW: Extracellular vesicles carry bioactive molecules that can be transferred between cells and tissues. The purpose of this review is to describe how extracellular vesicles regulate functions of cells in cartilage and other joint tissues. The potential application of extracellular vesicles in the treatment of osteoarthritis and as biomarkers will also be discussed. RECENT FINDINGS: Extracellular vesicles are found in synovial fluid, in articular cartilage and in the supernatants of synoviocytes and chondrocytes. Extracellular vesicles in cartilage have been proposed to be involved in cross talk between cells in joint tissues and to affect extracellular matrix turnover and inflammation. Extracellular vesicles from arthritic joints can promote abnormal gene expression and changes in cartilage extracellular matrix, including abnormal mineralization. Promising results were obtained in the therapeutic application of mesenchymal stem cell-derived extracellular vesicles for cartilage repair and experimental osteoarthritis. SUMMARY: Extracellular vesicles have emerged as vehicles for the exchange of bioactive signaling molecules within cartilage and between joint tissues to promote joint homeostasis and arthritis pathogenesis. As the molecular content of extracellular vesicles can be customized, they offer utility in therapeutic applications. PMID- 29035935 TI - Prevalence and correlations between suicide attempt, depression, substance use, and functionality among patients with limb amputations. AB - Most patients undergoing limb amputations suffer significant emotional changes. The aim of this study was to estimate the prevalence of suicide attempts and depression in a sample of Mexican patients with limb amputations and, second, to determine whether the patients' functionality correlates with the presence of depression. We studied 40 patients who had undergone a limb amputation. The suicide attempt was evaluated using the Suicide Intent Scale. The depression was assessed using the Hamilton Depression Rating Scale, whereas the functionality of the patients was measured using the Functional Independence Measure. In this sample, 90% were men, whereas only 10% were women. In terms of the suicide behavior, we identified suicide attempts in 27.5% of the patients. The rate of depression was 92.5%. In the Functional Independence Measure, we observed that 57.5% of the patients showed complete dependence. Finally, a significant correlation was found between depression and functionality (r=-0.75, P<0.001). The findings of the present study highlight the high incidence of suicide attempts and depression in Mexican patients with limb amputations. Also, we identified a correlation between the lack of functional independence and depression. Therefore, holistic interventions are necessary in these patients: rehabilitation therapy to increase their functionality, and psychological and pharmacology therapy to decrease suicidal behavior and depression. Finally, more studies using larger samples are necessary to obtain conclusive results. PMID- 29035936 TI - The Italian version of the Outpatient Physical Therapy Improvement in Movement Assessment Log: cross-cultural adaptation and psychometric properties. AB - Instruments to measure movement abilities from a patient's perspective are generally unavailable across diverse cultures and languages. The aim of this study was to translate, culturally adapt, and validate the Italian version of the Outpatient Physical Therapy Improvement in Movement Assessment Log (OPTIMAL) confidence scale. This study was an observational multicenter study. The Italian version of the OPTIMAL confidence scale (OPTIMAL-I) was developed following forward-backward translation and pretesting with a small group of patients. Reliability was measured by internal consistency (Cronbach alpha), and a factor analysis was carried out to explore the internal structure. Convergent validity was measured by comparing the OPTIMAL-I with the Italian version of the Activities-specific Balance Confidence (ABC-I). The process for obtaining the OPTIMAL-I required 3 months and it was administered to 290 outpatients in two different rehabilitation clinics. OPTIMAL-I showed high acceptability, high internal consistency (Cronbach's alpha=0.963), and high test-retest stability (intraclass correlation coefficient=0.92, P=0.001). Convergent validity with ABC I was also high (r=0.56-0.86; P<0.001). Using factor analysis, we found evidence for a four-factor structure related to 'confidence with high-loads lower extremity mobility', 'confidence with low-loads lower-extremity mobility', 'confidence with upper-extremity mobility', and 'confidence with trunk mobility' that explained 78.83% of the total variance. The OPTIMAL-I showed good psychometric properties and its use can be recommended for measuring confidence in Italian patients receiving physical therapy services. Future studies should focus on divergent validity and construct validity. PMID- 29035937 TI - Ultrasound Detection of Arteria Comitans: A Novel Technique to Locate the Sciatic Nerve. AB - In the gluteal and thigh region, the arteria comitans accompanies the sciatic nerve for a short distance, then penetrates the nerve and runs to the lower part of the thigh. There is no study that recognizes this artery as a guide to the location of the sciatic nerve. In this report, we describe a series of 6 knee arthroplasty patients in whom ultrasound-guided sciatic nerve block was successfully performed using color Doppler and pulsed wave Doppler to visualize the arteria comitans as a guide to the location of the sciatic nerve. We have found that detecting the arteria comitans as a landmark is novel and may offer an additional tool with the existing methods for sciatic nerve block. PMID- 29035938 TI - Percutaneous excision of difficult osteoid osteomas using intraoperative AIRO CT navigation: a preliminary report. AB - Osteoid osteomas are well known for intraoperative technical difficulties for localization and adequate excision, especially when they are not clearly visualized on plain radiographs or when they occur in difficult and inaccessible situations. Localization in the radiology suite and shifting the patient to the operating room can be cumbersome, and can result in errors because of lack of real-time imaging. In these scenarios, intraoperative navigation will be useful. We report a technique of intraoperative computed tomography (CT) navigation for localization and excision of osteoid osteomas of the long bones. Six patients (four femoral and two tibial lesions) with a radiological diagnosis of osteoid osteoma, in whom the nidus could not be visualized clearly on plain radiographs, were treated with this technique. Intraoperative CT navigation with AIRO was performed and the images were registered to the computer. The lesion was then localized and excised using a high-speed burr. All patients underwent postexcision on-table CT scans, which showed complete excision of the nidus. All patients became symptom free and are doing well at a minimum follow-up of 6 months. Intraoperative CT navigation helps to exactly localize the nidus and also helps to confirm complete excision of the nidus. This is a safe, effective and minimally invasive method to treat osteoid osteomas, particularly those that are not amenable to excision under C arm guidance. PMID- 29035939 TI - Predictors for the development of microalbuminuria and interaction with renal function. AB - AIM: It is important to know which factors predict the development of microalbuminuria in patients with diabetes mellitus type II. MATERIAL: Data from the Randomized Olmesartan and Diabetes Microalbuminuria Prevention Study were used to identify predictors for the new onset of microalbuminuria. Furthermore, the interaction of baseline albuminuria and baseline estimated glomerular filtration rate (eGFR) and the effects of treatment with olmesartan were investigated. RESULTS: A total of 4447 patients were randomized to receive 40-mg olmesartan or placebo for a median of 3.2 years. Baseline urinary albumin creatinine ratio (UACR) was the most important predictor of microalbuminuria, followed by age, weight, glycosylated hemoglobin type A1C, blood glucose, total cholesterol, SBP number of antihypertensive drugs and heart rate. The development of microalbuminuria was not affected by hemodynamic factors. The incidence of microalbuminuria increased from the lower to the higher UACR tertile at all baseline eGFR tertiles. The effects of olmesartan on prevention of new onset microalbuminuria were more obvious in those with the highest baseline UACR at all baseline eGFR tertiles. The eGFR declined more significantly in the olmesartan group (from 85.0 to 80.1 ml/min per 1.73 m), whereas the decrease in the placebo group was smaller (from 84.7 to 83.7 ml/min per 1.73 m). The highest rate of eGFR decline in the olmesartan group was in patients with the highest baseline eGFR (>95 ml/min per 1.73 m) at all baseline UACR tertiles. The transition from normoalbuminuria to microalbuminuria in the olmesartan treated patients was not accompanied by preservation of renal function. CONCLUSION: Predictors of new onset microalbuminuria are the classical cardiovascular risk factors. Microalbuminuria development was associated with baseline UACR but not baseline eGFR, whereas eGFR decrease after introduction of olmesartan was dependent on baseline eGFR but not on baseline UACR. The effects of olmesartan on microalbuminuria development and on eGFR decrease are probably mediated by different mechanisms.Clinical Trials.gov number, NCT00185159. PMID- 29035940 TI - Perspectives on hypertension's prevalence, treatment and control in a high cardiovascular risk East European country: data from the SEPHAR III survey. AB - OBJECTIVES: To estimate the trend in arterial hypertension's prevalence, awareness, treatment, and control in Romania, starting from the latest national survey Study for the Evaluation of Prevalence of Hypertension and Cardiovascular Risk in Romania III that has a crucial importance for the development of prevention strategies at national level. METHODS: A representative sample of 1970 Romanian adults (mean age 48.38 years, age range 18-80 years, 52.5% women, 72.58% response rate), was enrolled. During the two study visits, three blood pressure (BP) measurements were performed at 1-min interval. Hypertension was defined as study SBP at least 140 mmHg and/or study DBP at least 90 mmHg at both study visits or previously diagnosed hypertension, regardless of BP values. BP control was defined as SBP less than 140 mmHg and DBP less than 90 mmHg in hypertensive patients. RESULTS: General hypertension prevalence is 45.1% (19.1% newly diagnosed hypertension, 80.9% awareness of hypertension), increasing with age, regardless of sex and area of residence. Although the majority (72.2%) of hypertensive patients were treated (51.9% with two or more drugs), only 30.8% of them had controlled BP values. Following the evolution from the last 11 years, it is expected that in 2020 the prevalence of hypertension to be up to 44%, the awareness up to 96.2%, treatment of hypertension up to 83.7%, and BP control up to 36.6%. CONCLUSION: Hypertension's prevalence in Romania is on the rise despite the increase in awareness, treatment, and control. Possible explanations of this trend might be the increasing incidence of unhealthy lifestyle and diet, including high salt intake, and a general increase in the prevalence of obesity, diabetes mellitus, and dyslipidemia. PMID- 29035941 TI - Arterial stiffness and cardiometabolic phenotype of Cameroonian Pygmies and Bantus. AB - BACKGROUND: Pygmies living in the Central African rainforest with a traditional hunter-gatherer lifestyle have a low incidence of cardiovascular diseases. Because of progressive loss of traditional habitat and ancestral lands, some Pygmies have migrated to urban areas and adopt specific Bantu lifestyles such as increased salt consumption and a sedentary way of life. We tested the hypothesis that migrant Pygmies could present with hemodynamic and metabolic characteristics different from those of traditional in-situ Pygmies and possibly closer to those of Bantu farmers. PATIENTS AND METHODS: The study included 148 Pygmies (94 traditional and 54 migrants) and 164 Bantus. Peripheral and central hemodynamics, aortic pulse wave velocity (PWV), and augmentation index corrected for heart rate (AIx) were measured, as well as fasting lipid profile. Urinary sodium and potassium excretion was also measured on a morning spot. RESULTS: Compared to Bantus, Pygmies had lower height (even between men and women, but men were taller than women in the three groups), weight, waist and hip circumference, peripheral and central blood pressure, total, low-density lipoprotein, and high-density lipoprotein cholesterol and apolipoprotein B100 levels, sodium urinary excretion, and lower prevalence of the metabolic syndrome. By contrast, they had a higher waist-to-hip ratio, and higher triglycerides levels, as compared to Bantu farmers. PWV and AIx did not differ between Bantus and Pygmies. Compared to traditional in-situ Pygmies, migrant Pygmies were not taller when adjusted for sex, had lower brachial and central blood pressure, higher PWV (adjusted for mean arterial pressure, BMI, and sex), and higher apolipoprotein B100 levels. In the whole population, multivariable analysis revealed that PWV was independently associated with age, weight, height, mean arterial pressure, total cholesterol, and hip circumference, whereas AIx was independently related to age, sex, height, heart rate, diastolic blood pressure, and group (from Bantu farmers to Pygmies). CONCLUSION: Comparisons between Bantus and Pygmies, and between migrant Pygmies and traditional in-situ Pygmies, showed mixed results, with favorable and deleterious hemodynamic and metabolic characteristics in all groups. This could be due to increased contacts between these populations, which blunt the expected differences and because the beneficial effects of the hunter-gatherer subsistence mode of traditional in-situ Pygmies are counterbalanced by unhealthy behavioral habits. PMID- 29035942 TI - Phase II randomized sham-controlled study of renal denervation for individuals with uncontrolled hypertension - WAVE IV. AB - OBJECTIVES: The aim of this double-blind, randomized, sham-controlled study was to verify the blood pressure (BP)-lowering efficacy of externally delivered focused ultrasound for renal denervation (RDN). BACKGROUND: Nonrandomized, first proof-of-concept study and experimental evidence suggested that noninvasive techniques of RDN emerged as an alternative approach of RDN to invasive technologies. METHODS: WAVE IV, an international, randomized (1 : 1) sham controlled, double-blind prospective clinical study, was prematurely stopped. Patients were enrolled if office BP was at least 160 mmHg and 24-h ambulatory BP was at least 135 mmHg, while taking three or more antihypertensive medications. The treatment consisted of bilateral RDN using therapeutic levels of ultrasound energy and the sham consisted of bilateral application of diagnostic levels of ultrasound energy. RESULTS: In the 81 treated patients neither changes in office BP at 12 and 24 weeks, nor changes in 24-h ambulatory BP at 24-week follow-up visit differed between the two groups significantly. Of note, no safety signal was observed. Adherence analysis disclosed full adherence in 77% at baseline and 82% at 6 months' follow-up visit. Post hoc analysis revealed that stricter criteria for stabilization of BP at baseline were associated with a numerically greater change in 24-h ambulatory BP in the RDN group than in the sham group. CONCLUSION: Our data did not prove that antihypertensive efficacy of the externally delivered focused ultrasound for RDN was greater than the sham effect. Stabilization of BP at baseline was identified as an important determinant of BP changes. PMID- 29035943 TI - Metabolic syndrome and subclinical carotid damage: a meta-analysis from population-based studies. AB - AIM: Metabolic syndrome (MetS) is a phenotype of growing prevalence in the general population. Information on the association between MetS and vascular damage in this setting is only based on data provided by single reports. We performed a meta-analysis of population-based studies aimed to assess the association of MetS with carotid atherosclerosis. DESIGN: Studies were identified by the following search terms: 'metabolic syndrome', 'general population,' 'carotid intima-media thickness' (IMT), 'carotid atherosclerosis,' 'carotid damage,' 'ultrasonography.' The OVID-MEDLINE, PubMed, and the Cochrane Central Register of Controlled Trials databases were searched for English-language articles without time restriction up to 30 September 2016. RESULTS: Overall, 34 635 study participants (22.9% with MetS) of both sexes were included in 21 studies (sample size range 182-11 502). Mean common carotid IMT was higher in MetS study participants as compared with their non-MetS counterparts (759 +/- 41 vs. 695 +/- 27 MUm), the standard means difference being 0.39 +/- 0.05 (confidence interval: 0.29-0.48, P < 0.0001). This was also the case when pooled data were separately analysed according to sex. Differences in carotid IMT were unaffected by the presence of publication bias or single-study effect. CONCLUSION: Our findings support the view that MetS is a risk factor for early carotid atherosclerosis in members of the general population, regardless of sex. From a practical perspective, the ultrasound search of subclinical carotid disease may refine cardiovascular risk stratification and decision-making strategies in MetS individuals. PMID- 29035944 TI - Association between common carotid artery diameter and target organ damage in essential hypertension. AB - OBJECTIVES: To investigate the relationship between common carotid artery diameter (CCA-D) and target organ damage (TOD) in essential hypertension. METHODS AND RESULTS: A total of 200 essential hypertensive patients were enrolled (mean age 62.5 +/- 9.5, men 59.0%) and were classified into two groups by the height adjusted mean median of CCA-D: patients with CCA-D/height less than 3.905 mm/m (n = 100, 50%) and patients with CCA-D/height more than 3.905 mm/m (n = 100, 50%). Patients with CCA-D/height more than 3.905 mm/m have higher left ventricular mass index (LVMI) (P < 0.001) and higher prevalence of left ventricular hypertrophy (LVH) (P < 0.001), higher mean common carotid intima-media thickness (P = 0.008) and higher prevalence of carotid artery sclerosis (P = 0.03), higher pulse wave velocity (PWV) (P < 0.001) and higher prevalence of increased arterial stiffness (P = 0.01), higher urinary albumin/creatinine ratio (P = 0.001) and higher prevalence of microalbuminuria (P = 0.02) and greater number of TODs (P < 0.001) compared with the patients with CCA-D/height less than 3.905 mm/m. CCA-D was significantly correlated with LVMI, PWV and logarithmically transformed urinary albumin/creatinine ratio (r = 0.299, P < 0.001; r = 0.212, P = 0.007; r = 0.224, P = 0.005, respectively) after adjusting for cardiovascular risk factors. Multivariable stepwise linear regression analysis showed that number of TODs as well as individual TOD, including LVMI, PWV and logarithmically transformed urinary albumin/creatinine ratio, were independently correlated to height adjusted mean CCA-D (all P < 0.05). CONCLUSION: Height-adjusted mean CCA-D was an independent risk factor for individual TOD, including LVMI, PWV and urinary albumin/creatinine ratio, as well as overall number of TODs in essential hypertension. PMID- 29035945 TI - The functional consequences of the microbiome in HIV: insights from metabolomic studies. AB - PURPOSE OF REVIEW: It is critical to gain insight into the metabolic pathways by which the microbiota might influence HIV immunopathogenesis to exploit host microbiota interactions. The aim of this review is to sketch a very broad picture of recent advances in our knowledge of how HIV might affect the microbiota, with a focus on specific gene products, particularly, metabolites produced by the microbiota that may affect HIV immunopathogenesis. RECENT FINDINGS: First, we describe the different approaches used to explore imbalances in effector microbial products during HIV infection. Then, we review the mechanisms by which the microbiota might affect HIV immunopathogenesis. We cover several aspects of HIV immunopathogenesis, including systemic inflammation, mucosal immunity, enterocyte barrier integrity, HIV persistence and effects on HIV-specific humoral and cytotoxic responses. The altered interplay between mucosal immunity and dysbiotic bacteria helps to explain poorly understood observations in HIV infection, including susceptibility to HIV acquisition or the risk of HPV-related cancers, lung infections and cardiovascular disease. SUMMARY: Although there is an urgent need to standardize the methods used for assessing the functional level of the microbiota, it is recognized that functional modulation of the microbiota for therapeutic purposes should be evaluated to improve HIV care. PMID- 29035946 TI - Role of the lung microbiome in HIV pathogenesis. AB - PURPOSE OF REVIEW: The purpose of this review is to summarize recent findings on the lung microbiome in HIV-infected patients and associated pulmonary diseases, and the relationship of airway microbial communities to metabolic and immune signatures within this patient population. RECENT FINDINGS: The lung microbiome in HIV infection is a relatively new and rapidly developing field; early studies in the field produced inconclusive evidence as to whether HIV-infection changes the lower airway microbiome. More recent microbiome investigations have addressed these inconsistencies by incorporating systems biology approaches and laboratory models. Several investigations have now identified enrichment of Prevotella, Veillonella, and Streptococcus in the lower airways as consistent correlates of advanced HIV-infection and HIV-associated pulmonary diseases. These bacteria are associated with specific metabolic and immune profiles within the lung and circulation, providing the first indication that the lung microbiome may play a functional role in the pathogenesis of HIV-infection and HIV-associated pulmonary disease. SUMMARY: This review summarizes knowledge to date on the lung microbiome in HIV infection, as well as challenges and accomplishments in the field within the last 2 years. Although the lung microbiome in HIV infection is still an emerging field, recent studies have formed a framework for future functional analysis of microbes in HIV pathogenesis. PMID- 29035948 TI - HIV and aging: role of the microbiome. AB - PURPOSE OF REVIEW: The purpose of this article is to review age-associated alterations in microbiota composition, diversity and functional features in context of immune senescence, chronic inflammation and comorbidities associated with HIV infection. The overall goal is to assess whether modulating the microbiome will likely improve resilience of the immune system and augment return to health. RECENT FINDINGS: Alteration in the gut microbiota composition diversity and function occur in HIV and aging. Importantly, butyrate producing bacteria are reduced in both HIV and aging individuals. There is increasing relevance of studying metabolomics in the context of HIV-associated non-AIDS comorbidities and aging. Interventional prospects of probiotics, prebiotics and fecal microbiota transplantation in HIV and aging will provide novel therapeutic approaches. SUMMARY: Increasing evidence suggests a significant link in changes in the composition, diversity and functional aspects of intestinal microbiome with normal aging and HIV infection. Data on association of metabolites produced by the microbiome with HIV-associated non-AIDS comorbidities is mounting. The impact of the microbiome alterations on inflammation, immune and organ senescence and mechanisms by which bio-behavioral pathways will exacerbate these outcomes needs to be further evaluated. PMID- 29035949 TI - The "iceberg" of reporting clinical trials. PMID- 29035947 TI - Cross-reactivity of HIV vaccine responses and the microbiome. AB - PURPOSE OF REVIEW: A successful human immunodeficiency virus-type 1 (HIV-1) vaccine will require immunogens that induce protective immune responses. However, recent studies suggest that the response to HIV-1 and perhaps other viruses may be altered by immune system exposure to intestinal microbiota-antigens. This review will discuss select aspects of these studies. RECENT FINDINGS: Naive CD4 T and B cell repertoires can be imprinted by intestinal microbiota-antigens to respond to virus epitopes prior to virus infection. A multiclade envelope (Env) gp145 DNA prime, recombinant adenovirus type 5 boost vaccine tested in a HIV Vaccine Trials Network (HVTN) phase IIb human vaccine efficacy trial (HVTN 505) induced a dominant gp41-reactive antibody response that was non-neutralizing and cross-reactive with intestinal microbiota. This vaccine regimen also induced a dominant gp41-reactive, intestinal microbiota-cross-reactive gp41 antibody response in neonatal and adult Rhesus macaques. Studies of naive CD4 T cells have demonstrated cross-reactivity to both HIV-1 and influenza peptides. SUMMARY: HIV 1 Env vaccine-induced CD4 T and B cell responses can originate from a pool of intestinal microbiota-cross-reactive immune cells. Moreover, intestinal microbiota-cross-reactive HIV-1 Env antibodies are ineffective in protection against HIV-1 infection. Thus, intestinal microbiota-imprinting of the B cell repertoire may be one of several roadblocks to the induction of protective HIV-1 antibodies. PMID- 29035950 TI - Nurse initiated protocols for spontaneous breathing trials in adult intensive care unit patients: a scoping review protocol. AB - REVIEW OBJECTIVES/QUESTIONS: The objectives of this scoping review are to explore the existing literature regarding protocols initated by nurses for a spontaneous breathing trial (SBT) in adult intensive care unit (ICU) patients, to examine and conceptually map the evidence, and to identify any gaps in the literature.The questions of this review are. PMID- 29035951 TI - Anthropometric prediction equations for estimating body mass composition: a scoping review protocol. AB - REVIEW QUESTIONS/OBJECTIVES: The overall aim of this scoping review is to determine the optimal anthropometric variable parameters used to develop predictive equation(s) to estimate the components of body mass composition.The objectives of the scoping review are:The questions for the scoping review are. PMID- 29035952 TI - The association between hip dysfunction and lower quarter injuries in long distance runners: a systematic review protocol. AB - REVIEW QUESTION/OBJECTIVE:: The objective of this review is to establish the association between hip dysfunction and lower quarter (low back and lower limb) injuries in long distance runners. Specifically the review question is: Are long distance runners with hip dysfunction at risk of lower quarter (low back and lower limb) injuries? PMID- 29035953 TI - Rehabilitation for tibial plateau fractures in adults: a scoping review protocol. AB - REVIEW OBJECTIVE: Based on the observation that rehabilitation practices for tibial plateau fractures are inconsistent and lack uniformity in the published literature, this scoping review will seek to identify all relevant studies that have reported on rehabilitation for tibial plateau fractures in order to comprehensively map the characteristics of the practices. This scoping review will then be used to identify commonalities across the included studies in order to identify potential focus questions for subsequent systematic reviews. PMID- 29035954 TI - Effectiveness of dietary inorganic nitrate in lowering blood pressure in hypertensive adults: a systematic review protocol. AB - REVIEW QUESTION: The question of this review is: what is the effect of dietary inorganic nitrate on blood pressure in adults with blood pressure >120/80mmHg? PMID- 29035955 TI - Adolescents' decision to pursue bariatric surgery: a systematic review protocol. AB - REVIEW QUESTION/OBJECTIVE:: The objective of this qualitative review is to identify what motivates an adolescent to pursue bariatric surgery. PMID- 29035956 TI - Information overload in consumers of health-related information: a scoping review protocol. AB - REVIEW QUESTION/OBJECTIVE:: The objective of this scoping review is to examine and map the breadth of evidence on information overload in lay adult and adolescent consumers of health-related information. PMID- 29035957 TI - Diagnostic test accuracy of self-reported frailty screening instruments in identifying community-dwelling older people at risk of frailty and pre-frailty: a systematic review protocol. AB - REVIEW QUESTION/OBJECTIVE:: The question of this systematic review is: What is the diagnostic test accuracy of self-reported frailty screening instruments among community-dwelling older people against any of the following reference standard tests: the frailty phenotype, frailty index and comprehensive geriatric assessment? PMID- 29035958 TI - Forgiveness facilitation in palliative care: a scoping review protocol. AB - REVIEW QUESTION/OBJECTIVE:: The objective of this scoping review is to map the nature and extent of forgiveness facilitation interventions that have been implemented and evaluated in palliative care contexts. More specifically, the review questions are. PMID- 29035959 TI - Single room versus open-bay design in neonatal intensive care units for improvement in infant outcomes: a systematic review protocol. AB - REVIEW QUESTION/OBJECTIVE:: The objective of this review is to identify the impact of single room neonatal intensive care unit (NICU) design on infant outcomes compared to alternative design.The specific question is: what is the impact of single room design on outcomes of infants cared for in intensive care units compared to those in alternative designs? PMID- 29035960 TI - Web-based therapeutic interventions for assessing, managing and treating health conditions in Indigenous people: a scoping review protocol. AB - REVIEW OBJECTIVES/QUESTIONS: The objective of the scoping review is to map the international scientific literature on web-based therapeutic interventions (WBTI) used by Indigenous people for assessing, managing and treating health conditions. The focus of this review is WBTIs for a broad range of health conditions, including but not limited to, communicable and non-communicable diseases, mental health conditions (including the broader concept of social and emotional wellbeing), use of harmful substances and gambling.The questions for the scoping review are. PMID- 29035961 TI - Behavioral and/or pharmacological interventions for managing sleep disturbances in children with autism spectrum disorder: an umbrella review protocol. AB - REVIEW QUESTION: What are effective behavioral interventions and/or pharmacological methods for managing sleep disturbances in children with autism spectrum disorder? PMID- 29035962 TI - Effectiveness of interstage home monitoring on healthcare outcomes in infants with hypoplastic left heart syndrome: a systematic review protocol. AB - REVIEW QUESTION: What is the effectiveness of home monitoring on interstage survival rates, weight gain, hospital admissions and cost savings in infants with hypoplastic left heart syndrome? PMID- 29035963 TI - Older hospitalized patients' experiences of dialogue with healthcare providers in hospitals: a systematic review protocol. AB - REVIEW QUESTION/OBJECTIVE:: The objective is to identify and synthesize findings from qualitative studies of older (over 65 years) hospitalized patients' experiences of the barriers and facilitators to their dialogues with healthcare providers (HCPs) concerning their health and well-being.Specifically, the review questions are. PMID- 29035964 TI - Medication safety programs in primary care: a scoping review. AB - BACKGROUND: Medication safety plays an essential role in all healthcare organizations; improving this area is paramount to quality and safety of any wider healthcare program. While several medication safety programs in the hospital setting have been described and the associated impact on patient safety evaluated, no systematic reviews have described the impact of medication safety programs in the primary care setting. A preliminary search of the literature demonstrated that no systematic reviews, meta-analysis or scoping reviews have reported on medication safety programs in primary care; instead they have focused on specific interventions such as medication reconciliation or computerized physician order entry. This scoping review sought to map the current medication safety programs used in primary care. OBJECTIVE: The current scoping review sought to examine the characteristics of medication safety programs in the primary care setting and to map evidence on the outcome measures used to assess the effectiveness of medication safety programs in improving patient safety. INCLUSION CRITERIA TYPES OF PARTICIPANTS: The current review considered participants of any age and any condition using care obtained from any primary care services. CONCEPT: We considered studies that focussed on the characteristics of medication safety programs and the outcome measures used to measure the effectiveness of these programs on patient safety in the primary care setting. CONTEXT: The context of this review was primary care settings, primary healthcare organizations, general practitioner clinics, outpatient clinics and any other clinics that do not classify patients as inpatients. TYPES OF STUDIES: We considered all quantitative studied published in English. SEARCH STRATEGY: A three-step search strategy was utilized in this review. DATA EXTRACTION: Data were extracted from the included studies to address the review question. The data extracted included type of medication safety program, author, country of origin, aims and purpose of the study, study population, method, comparator, context, main findings and outcome measures. RESULTS: The objectives, inclusion criteria and methods for this scoping review were specified in advance and documented in a protocol that was previously published. This scoping review included nine studies published over an eight-year period that investigated or described the effects of medication safety programs in primary care settings. We classified each of the nine included studies into three main sections according to whether they included an organizational, professional or patient component. The organizational component is aimed at changing the structure of the organization to implement the intervention, the professional component is aimed at the healthcare professionals involved in implementing the interventions, and the patient component is aimed at counseling and education of the patient. All of the included studies had different types of medication safety programs. The programs ranged from complex interventions including pharmacists and teams of healthcare professionals to educational packages for patients and computerized system interventions. The outcome measures described in the included studies were medication error incidence, adverse events and number of drug-related problems. CONCLUSION: Multi faceted medication safety programs are likely to vary in characteristics. They include educational training, quality improvement tools, informatics, patient education and feedback provision. The most likely outcome measure for these programs is the incidence of medication errors and reported adverse events or drug-related problems. PMID- 29035965 TI - Effectiveness of bedrails in preventing falls among hospitalized older adults: a systematic review. AB - BACKGROUND: Falls are a major problem today affecting adults of any age, but the elderly are a population that is more susceptible to falls. Falls are the leading cause of injury or death among older adults. Hospitalized older people are particularly vulnerable to falls. Falls cause direct injuries (minor injuries, severe wounds of the soft tissues and bone fractures) to patients and increased length of stay. The prevention of falls is commonly considered an indicator of the quality of care. Therefore, health institutions and professionals treat the identification and implementation of strategies to prevent or minimize their effects as a high priority. Fall prevention interventions involving physical restraints are still common and considered a primary preventative measure, despite controversy in their use. One of the most frequently used restraint interventions is bedrails. The question of the effectiveness of bedrails in preventing falls cuts across all societies and cultures and has with significant implications for the clinical practice of nurses. OBJECTIVES: The objective of this review was to identify the effectiveness of the use of bedrails in preventing falls among hospitalized older adults when compared with no use of bedrails or any type of physical restraints. INCLUSION CRITERIA TYPES OF PARTICIPANTS: The current review considered studies that included hospitalized adults (female and male), 65 years and over with any clinical condition in a non intensive care unit (ICU). TYPES OF INTERVENTION(S): The current review considered studies that evaluated the use of bedrails as a restraint to prevent falls among older adults in non-ICUs compared to no use of bedrails or any type of physical restraints, for example, bedrails versus no bedrails, and bedrails versus no wrist or ankle ties. TYPES OF STUDIES: The current review considered any randomized controlled trials (RCTs). In the absence of RCTs, other research designs such as non-RCTs, before and after studies, cohort studies, case-control studies, descriptive studies, case series/reports and expert-opinion were considered. OUTCOMES: The current review considered studies that included primary outcomes (number of patients who fell or the number of falls per patient) and secondary outcomes (number of head trauma, bone fractures or soft tissue injuries). SEARCH STRATEGY: The search strategy aimed to find both published and unpublished articles. A three-step search strategy was utilized in 13 databases. Articles published in Portuguese, English and Spanish beginning from 1980 were considered for inclusion. METHODOLOGICAL QUALITY: Assessment of methodological quality was not conducted as no articles were identified that met the inclusion criteria. DATA EXTRACTION AND DATA SYNTHESIS: Data extraction and synthesis was not performed, because no articles were included in this systematic review. RESULTS: The search identified a total of 875 potentially relevant articles. Sixteen articles were identified through the reference lists of all identified articles. One hundred and thirteen full-text papers were assessed by two independent reviewers to determine eligibility. However, 11 articles were not found (despite all the efforts), and 102 articles did not meet the inclusion criteria. CONCLUSION: There is no scientific evidence comparing the use of bedrails in preventing falls among hospitalized older adults to no use of bedrails or any type of physical restraints. PMID- 29035966 TI - Effectiveness of rifampicin chemoprophylaxis in preventing leprosy in patient contacts: a systematic review of quantitative and qualitative evidence. AB - BACKGROUND: Individuals in contact with patients who have leprosy have an increased risk of disease exposure, which reinforces the need for chemoprophylactic measures, such as the use of rifampicin. OBJECTIVES: The objective of the review was to synthesize the best available evidence regarding the effectiveness of rifampicin chemoprophylaxis for contacts with patients with leprosy, and to synthesize the best available evidence on the experience and acceptability of rifampicin chemoprophylaxis as reported by the contacts and health professionals involved in the treatment of leprosy or Hansen's disease. INCLUSION CRITERIA TYPES OF PARTICIPANTS: In the quantitative component, individuals in contact with leprosy patients were included. In the qualitative component, in addition to contacts, health professionals who were in the practice of treating leprosy were included. TYPES OF INTERVENTION(S)/PHENOMENA OF INTEREST: The quantitative component considered as an intervention rifampicin at any dose, frequency and mode of administration, and rifampicin combination regimens.The qualitative component considered as phenomena of interest the experience and acceptability of rifampicin chemoprophylaxis. TYPES OF STUDIES: The quantitative component considered experimental and observational studies whereas the qualitative component considered studies that focused on qualitative data, including but not limited to, designs such as phenomenology, grounded theory, ethnography and action-research. OUTCOMES: The quantitative component considered studies that reported on outcomes such as the development of clinical leprosy in the contacts of patients who had leprosy, incidence rates, adverse effects and safety/harmful effects of the intervention. SEARCH STRATEGY: A three step strategy for published and unpublished literature was used. The search for published studies included: PubMed, Cumulative Index to Nursing and Allied Health Literature, Cochrane Library, Scopus, Web of Science, National Institute for Health and Clinical Excellence, Latin American and Caribbean Health Sciences Literature; and Google Scholar and EVIPnet for unpublished studies. Studies published from the time of the respective database inception to January 2016 in English, Spanish, Portuguese, Japanese and Chinese were considered. METHODOLOGICAL QUALITY: Two reviewers independently assessed the studies for methodological quality using standardized critical appraisal instruments from the Joanna Briggs Institute. DATA EXTRACTION: Standardized data extraction tools developed by the Joanna Briggs Institute were used to extract quantitative and qualitative data from papers included in the review. DATA SYNTHESIS: Due to clinical and methodological heterogeneity in the interventions of the included studies, no statistical meta-analysis was possible. Quantitative and qualitative research findings are presented in narrative form. RESULTS: Following critical appraisal, eight studies were included in this review, seven quantitative and one qualitative. The reduction in incidence of leprosy, using one dose of rifampicin in the first two years, was 56.5%; in the follow up period of one to four years, the reduction was 34.9%. The combination of rifampicin and the Bacillus Calmette Guerin vaccine showed a preventative effect of 80% against the disease. The only controlled clinical trial using two doses of rifampicin was community-based and did not indicate effectiveness of the intervention. The qualitative findings showed social acceptability of rifampicin. CONCLUSIONS: Chemoprophylaxis with one dose of rifampicin is found to be effective in preventing contacts of leprosy patients from contracting the disease. Also, there is indication that this strategy is socially accepted. PMID- 29035967 TI - Pediatric clinical handover: a best practice implementation project. AB - BACKGROUND: Communication of information between and among healthcare providers is an essential element of patient care. Poor clinical handover has been associated with inaccurate clinical assessment and diagnosis, delays in diagnosis, medication errors and decreased patient satisfaction. Effective and efficient transition of patient care information requires an evidence-based handover approach. OBJECTIVES: The aim of this evidence implementation project was to make a contribution to promote evidence-based practice in clinical handover in a pediatric setting and thereby enhance patient safety and service delivery. METHODS: Seven criteria identified by the Joanna Briggs Institute were used to conduct an audit in the Gastroenterology Department, Children's Hospital of Fudan University, Shanghai, People's Republic of China. Twelve nurses and 260 handover sessions were involved. The JBI Practical Application of Clinical Evidence System and Getting Research into Practice audit tools for promoting change in health practice were used to ascertain compliance with the criteria before and after the implementation of best practice. The program included three phases and was conducted over six months. RESULTS: There were improvements with compliance for each criterion. Face-to-face communication, standardized documentation, identification of patients, care plan handover and transfer of responsibility reached 100% compliance. Detailed observations of the patient improved from 93% to 98%, and there was an 18% improvement for relevant history handover. CONCLUSIONS: This project has demonstrated that handover sessions can be more effective by translating evidence into practice through ongoing evidence based audit. Nursing inter-shift handover requires the use of a highly valuable and important standardized tool. Further audits will need to be carried out in order to maintain the practice change, and ensure the sustainability of the project. PMID- 29035968 TI - The final word on nutritional screening and assessment in older persons. AB - PURPOSE OF REVIEW: To provide an updated perspective of how nutritional screening and assessment in older persons should be performed and reasonably implemented in the near future. RECENT FINDINGS: Although nutritional screening and assessment should be fast and easy procedures, there is increasing evidence that more time should be dedicated to them. This is probably an answer to the claim to a medicine being more preventive than curative. Increasing interest is currently given to healthy aging and nutritional status is more likely to be addressed for its implications on functional status and disability. Important prognostic conditions, such as frailty, sarcopenia, and cachexia, which are closely linked to the nutritional domain, are at the top of the agenda. Therefore, body composition is a key issue and functional status is suggested as primary endpoint of nutrition trials. In this scenario, there is also a rationale for systematic assessment of inflammation, protein intake, and vitamin D status as potential contributing factors to reduced muscle mass and function. SUMMARY: A 'second generation' multidimensional nutritional screening and assessment including the evaluation of body composition, frailty, sarcopenia, and cachexia could be hypothesized. Nutritional assessment should be also completed by the systematic evaluation of inflammation, protein intake, and vitamin D status. PMID- 29035970 TI - Emerging perspectives on branched-chain amino acid metabolism during adipocyte differentiation. AB - PURPOSE OF REVIEW: Adipogenesis has been extensively studied in the context of carbohydrate and lipid metabolism. However, little information exists on the role of amino acid metabolism during adipocyte differentiation. Here, we review how branched-chain amino acid (BCAA) metabolism is modified during adipogenesis and, due to the limited information in the area, address questions that remain to be answered with further research. RECENT FINDINGS: BCAAs are rapidly consumed during adipocyte differentiation and are indispensable for this process. Furthermore, we describe how BCAA catabolic enzymes and the metabolic fate of BCAAs are modified during adipogenesis. SUMMARY: Obesity is a chronic disease characterized by increased adipose tissue due to either an increase in the size (hypertrophy) and/or number of adipocytes (hyperplasia). Hyperplasia is determined by the rate of adipogenesis. Therefore, understanding the mechanism that modulates adipogenesis in the context of amino acid metabolism will help to establish pharmacological and dietary interventions involving the type and amount of dietary protein for the treatment of obesity and its associated comorbidities.Video abstract http://links.lww.com/COCN/A11. PMID- 29035971 TI - Dietary patterns and cognition in older persons. AB - PURPOSE OF REVIEW: The current article reviews recently published evidence of the important role that specific dietary patterns may hold on preventing cognitive impairment and dementia over aging. RECENT FINDINGS: Specific dietary patterns attributed to targeting cardiovascular risk factors may protect against the development of mild cognitive impairment (MCI) and dementia, especially Alzheimer's disease. Numerous epidemiological studies have strongly suggested that multinutrient approaches using the Mediterranean diet (Med diet), dietary approach to systolic hypertension (DASH) and the Mediterranean-DASH diet intervention for neurodegenerative delay (MIND) are associated with a lower risk of cognitive impairment, MCI and Alzheimer's disease in older persons. This multinutrient approach seems to hold better outcomes than single nutrient intervention. There is only one randomized clinical trial (PREDIMED study) showing an improvement in cognitive performance over time in those undergoing a Med diet protocol. SUMMARY: Nutrition is an essential and modifiable risk factor that plays a role on preventing and/or delaying the onset of dementia. There is sufficient evidence to hypothesize testing neuroprotective dietary patterns on cognition in randomized clinical trials in older persons. Healthy dietary patterns such as the Med diet, DASH and MIND deserve further attention in randomized clinical trials on cognitive performance outcomes. PMID- 29035969 TI - Effects of medical food leucine content in the management of methylmalonic and propionic acidemias. AB - PURPOSE OF REVIEW: The current review highlights the varied effects of medical foods high in leucine (Leu) and devoid of valine (Val) and isoleucine (Ile) in the management of methylmalonic acidemia (MMA) and propionic acidemia and cobalamin C (cblC) deficiency, aiming to advance dietary practices. RECENT FINDINGS: Leu is a key metabolic regulator with a multitude of effects on different organ systems. Recent observational studies have demonstrated that these effects can have unintended consequences in patients with MMA as a result of liberal use of medical foods. The combination of protein restriction and medical food use in MMA and propionic acidemia results in an imbalanced branched chain amino acid (BCAA) dietary content with a high Leu-to-Val and/or Ile ratio. This leads to decreased plasma levels of Val and Ile and predicts impaired brain uptake of multiple essential amino acids. Decreased transport of methionine (Met) across the blood-brain barrier due to high circulating Leu levels is of particular concern in cblC deficiency in which endogenous Met synthesis is impaired. SUMMARY: Investigations into the optimal composition of medical foods for MMA and propionic acidemia, and potential scenarios in which Leu supplementation may be beneficial are needed. Until then, MMA/propionic acidemia medical foods should be used judiciously in the dietary management of these patients and avoided altogether in cblC deficiency. PMID- 29035973 TI - The relevance of dietary protein after bariatric surgery: what do we know? AB - PURPOSE OF REVIEW: The growing obesity epidemic is associated with an increased demand for bariatric surgery with Roux-en-Y Gastric Bypass and Sleeve Gastrectomy as the most widely performed procedures. Despite beneficial consequences, nutritional complications may arise because of anatomical and physiological changes of the gastrointestinal tract. The purpose of this review is to provide an update of the recent additions to our understanding of the impact of bariatric surgery on the intake, digestion and absorption of dietary protein. RECENT FINDINGS: After bariatric surgery, protein intake is compromised because of reduced gastric capacity and aversion for certain foods. A minority of patients reaches the recommended protein intake of minimal 60 g per day, which results in the loss of fat-free mass rather than the desired loss of fat mass. Despite inadequate protein intake, protein digestion and absorption do not seem to be impaired suggesting that other mechanisms could counteract the reduced secretion of digestive enzymes and their delayed inlet. SUMMARY: After bariatric surgery, protein supplementation or diet enrichment could attribute to achieve the minimal recommended protein intake and benefit the amount and composition of postoperative weight loss. PMID- 29035972 TI - Hyperammonemia and proteostasis in cirrhosis. AB - PURPOSE OF REVIEW: Skeletal muscle loss or sarcopenia is a frequent complication of cirrhosis that adversely affects clinical outcomes. As skeletal muscle is the largest store of proteins in the body, proteostasis or protein homeostasis is required for maintenance of muscle mass. This review will focus on disordered skeletal muscle proteostasis in liver disease. RECENT FINDINGS: Increased skeletal muscle uptake of ammonia initiates responses that result in disordered proteostasis including impaired protein synthesis and increased autophagy. The cellular response to the stress of hyperammonemia (hyperammonemic stress response, HASR) involves the coordinated action of diverse signaling pathways targeting the molecular mechanisms of regulation of protein synthesis. Transcriptional upregulation of myostatin, a TGFbeta superfamily member, results in impaired mTORC1 signaling. Phosphorylation of the eukaryotic translation initiation factor 2alpha (eIF2alpha) also relates to decreased global protein synthesis rates and mTORC1 signaling. Ammonia also causes mitochondrial and bioenergetic dysfunction because of cataplerosis of alpha-ketoglutarate. Lowering ammonia, targeting components of HASR and regulating cellular amino acid levels can potentially restore proteostasis. SUMMARY: Signaling via myostatin and eIF2alpha phosphorylation causes decreases in protein synthesis and mTORC1 activity with a parallel mitochondrial dysfunction and increased autophagy contributing to proteostasis perturbations during skeletal muscle hyperammonemia of liver disease. PMID- 29035975 TI - Breath Hydrogen Testing in East and Southeast Asia. AB - Breath hydrogen tests are popular, noninvasive tests for the assessment of carbohydrate fermentation in patients with irritable bowel syndrome (IBS) and functional dyspepsia (FD). There is limited information regarding the utility of breath hydrogen and methane tests in IBS and FD patients in East and Southeast Asia. This review aims to summarize current literature about common indications of breath testing in this region, the genesis of functional gastrointestinal symptoms by provocative breath testing and provide suggestions for correct use. The most common testing indication is the assessment of lactose intolerance, followed by small intestinal bacterial overgrowth (SIBO) and differentiation of intestinal gas profiles in research setting. Studies in this region not only documented a high prevalence of lactose malabsorption but a population, both healthy and IBS, that is highly symptomatic to typical lactose intakes. Breath hydrogen assessment of other fermentable carbohydrates (FODMAPs) are fairly uncommon, whereas methane breath testing is almost nonexistent. Cumulative hydrogen production following lactulose was also not excessive in IBS patients compared with controls. The evidence however, for the detection of SIBO suggests limited reliability in the use of lactulose or glucose breath testing alone and inconclusive data on its correlation with symptoms. Conversely, little has been carried out in FD. In conclusion, breath testing should be limited in the predicting patients with SIBO for directing clinical management but can be considered in the objective assessment of lactose malabsorption within a low FODMAP diet. Recommendations to improve the interpretation of breath testing in research were also provided. PMID- 29035974 TI - Altered ultrasonic vocalization in neonatal SAPAP3-deficient mice. AB - Ultrasonic vocalizations (USVs) in neonatal mice provide a means of modeling communication deficits in neurodevelopmental disorders. Mature mice deficient in SAP90/PSD95-associated protein 3 (SAPAP3) display compulsive grooming and anxiety like behavior, conditions that are often associated with neurodevelopmental disorders. To date, however, aspects of neurodevelopment have not been investigated in SAPAP3-deficient mice. Here, we examined whether neonatal SAPAP3 deficient mice display altered USVs. We recorded USVs from 5-day-old sapap3 and sapap3 mice, and also monitored developmental reflexes in these mice during the early postnatal period. Sapap3 mice display an increase in the number and duration of USV calls relative to sapap3 littermates, despite otherwise similar developmental profiles. Thus, SAPAP3, previously well-characterized for its role in compulsive grooming, also plays a heretofore unidentified role in neonatal communication. Aberrant social communication and compulsive behavior are core symptoms of autism spectrum disorders, and these results show that SAPAP3 deficient mice may serve to model some aspects of these conditions. PMID- 29035976 TI - The Impact of Obesity on Mortality and Other Outcomes in Patients With Nonvariceal Upper Gastrointestinal Hemorrhage in the United States. AB - GOALS: To quantify in patients with nonvariceal upper gastrointestinal hemorrhage (NVUGIH) the relationship between obesity and mortality, disease severity, treatment modalities, and resource utilization. BACKGROUND: NVUGIH is the most common gastrointestinal emergency. STUDY: Adults with a principal diagnosis of NVUGIH were selected from the 2014 National Inpatient Sample. The primary outcome was in-hospital mortality. Secondary outcomes were hemorrhagic shock, prolonged mechanical ventilation (PMV), upper endoscopy [esophagogastroduodenoscopy (EGD)], radiologic treatment, surgery, length of hospital stay (LOS), and total hospitalization costs and charges. Confounders were adjusted for using multivariable regression analyses. RESULTS: In total, 227,480 admissions with NVUGIH were included, 11.70% of whom were obese. Obese and nonobese patients had similar odds of mortality (aOR: 0.88; 95% confidence interval [CI]: 0.69-1.12; P=0.30), EGD within 24 hours of admission (aOR: 0.95; CI: 0.89-1.01; P=0.10), radiologic treatment (aOR: 1.06; CI: 0.82-1.35; P=0.66), and surgery (aOR: 1.27; CI: 0.94-1.70; P=0.11). However, obese patients had higher odds of shock (aOR: 1.30; CI: 1.14-1.49; P<0.01), PMV (aOR: 1.39; CI: 1.18-1.62; P<0.01), undergoing an EGD (aOR: 1.27; CI: 1.16-1.40; P<0.01), needing endoscopic therapy (aOR: 1.18; CI: 1.09-1.27; P<0.01), a longer LOS (0.31 d; CI: 0.16-0.46 d; P<0.01), higher costs ($1075; CI: $636-$1514; P<0.01), and higher charges ($4084; CI: $2060 $6110; P<0.01) compared with nonobese patients. CONCLUSIONS: Obesity is not an independent predictor of NVUGIH mortality. However, obesity is associated with a more severe disease course (shock and PMV), higher rates of EGD and endoscopic therapy use, and significant increases in resource utilization (hospital LOS, total hospitalization costs, and charges). PMID- 29035977 TI - Long-Term Safety of Using Local Anesthetic Injections in Professional Rugby League for Modified Indications. AB - OBJECTIVE: To assess and evaluate the long-term safety of local anesthetic injections before or during games in professional rugby league players. DESIGN: Retrospective case series. SETTING: Professional rugby league team. PARTICIPANTS: Sydney Roosters players over a 6-year period (2008-2013), who had been administered a local anesthetic injection for an injury before or during a match to aid return to play. INTERVENTIONS: Follow-up survey (no active intervention). MAIN OUTCOME MEASURES: Player self-reported satisfaction. Survey results were compared with a previous cohort who had received local anesthetic injection from 1998 to 2007. RESULTS: Thirty-two players who had been injected with local anesthetic on 249 occasions for 81 injuries completed the current survey at an average of 5.64 years postinjection. In the cohort of 2008 to 2013, fewer injections were performed to areas deemed higher risk compared with the 1998 to 2007 cohort (P < 0.00002). The vast majority of players (80/81 cases) would repeat the injection in the same circumstances and reported that ongoing side effects were uncommon. There were 6 cases (8%) in which players reported significant ongoing pain in the area of injection at long-term follow-up. CONCLUSIONS: This study affirmed the long-term safety of injections in most cases. LEVEL OF EVIDENCE: IV. PMID- 29035978 TI - Use of Blood Biomarkers in the Assessment of Sports-Related Concussion-A Systematic Review in the Context of Their Biological Significance. AB - OBJECTIVES: To critically review current knowledge on the positive and negative predictive value of blood biomarkers for concussion; to illustrate the clinical and biological contexts that help evaluate the use of these markers in sport related traumatic brain injuries (TBIs). METHODS: This systematic review was performed in accordance with PRISMA guidelines. We reviewed the measurement, clinical utility, endpoint, and biological significance of blood biomarkers in concussion. RESULTS: A total of 4352 publications were identified. Twenty-six articles relating to blood biomarkers were included in the review. Four common blood biomarkers, namely S100B, tau, neuron-specific enolase (NSE), and glial fibrillary acidic protein (GFAP), were examined. Overall, the studies showed S100B measurement and use, either acutely or at several time points, can distinguish injured from noninjured patients with an uncertain degree of utility in predicting mortality. At present, S100B has largely become an acceptable biomarker of TBI; however, studies have begun to highlight the need to incorporate clinical symptoms instead of S100B concentration in isolation on the basis of inconsistent results and lack of specificity across published studies. Further research is needed to evaluate and validate the use of tau, NSE, and GFAP as a diagnostic aid in the management of concussion and TBI. CONCLUSIONS: At present, blood biomarkers have only a limited role in the evaluation and management of concussion. Although several biomarkers of brain injury have been identified, continued research is required. S100B holds promise as the most clinically useful diagnostic biomarker. Blood biomarkers, in combination with other clinical data, such as head computed tomography, would maximize the diagnostic accuracy. The methodological limitations evident in blood biomarker research results in the need for the clinical utility of blood biomarker use in concussion to be further explored. PMID- 29035979 TI - Effect of a Commercially Available Footwear Insole on Biomechanical Variables Associated With Common Running Injuries. AB - OBJECTIVE: To determine whether Dr. Scholl's Active Series (DSAS) footwear insoles alter biomechanical variables associated with running injuries. DESIGN: Randomized, controlled experiment. SETTING: Sport medicine and biomechanics gait analysis laboratory. PARTICIPANTS: Fifteen healthy adults. INTERVENTIONS: The control condition was the participant's own athletic footwear. The experimental condition was the participant's own athletic footwear plus a DSAS insole. Participants completed running gait analysis trials with each condition. MAIN OUTCOME MEASURES: Peak vertical loading rates (VLRs), peak ankle eversion velocities (AEVs), peak ankle eversion angles (AEAs), and knee abduction angular impulses (KAAIs) were calculated and compared between the control and DSAS conditions because these variables have been associated with plantar fasciitis (VLRs), tibial stress syndrome (AEVs, AEAs), and patellofemoral pain syndrome (KAAIs). RESULTS: Dr. Scholl's Active Series insoles reduced VLRs across participants by 16% (P < 0.001) but had no consistent influence on AEVs, AEAs, or KAAIs. Participant-specific responses showed that most runners either experienced AEA and KAAI reductions or no change with the DSAS insole, whereas AEVs commonly increased with the DSAS insole. CONCLUSIONS: Dr. Scholl's Active Series insoles demonstrate efficacy in reducing VLRs, which are associated with plantar fasciitis. Biomechanical changes to variables associated with tibial stress syndrome (AEVs, AEAs) and patellofemoral pain syndrome (KAAIs) were inconsistent. PMID- 29035980 TI - Incidence of Symptomatic Pulmonary Embolus and Deep Vein Thrombosis After Knee Arthroscopy in the Pediatric and Adolescent Population. AB - OBJECTIVE: The incidence of deep venous thrombosis (DVT) and pulmonary embolism (PE) after pediatric knee arthroscopy is unknown. The purpose of this study was to determine the incidence of venous thromboembolism (VTE) after knee arthroscopy in the pediatric and adolescent population in a high-volume center. DESIGN: Retrospective cohort study. SETTING: Tertiary care children's hospital. PATIENTS: All patients who underwent arthroscopy of the knee for a sports-related injury by 2 surgeons were reviewed. Chief complaint, past medical/surgical history, medications, procedure performed, intraoperative findings, intraoperative complications, and postoperative recovery were reviewed. The incidences of postoperative VTE within 30 days after the procedure were reviewed. RESULTS: Seven hundred forty-six (358 male and 388 female patients) knee arthroscopies performed from September 2011 to October 2016 by 2 pediatric orthopedic surgeons specializing in sports-related injuries were included. The average age was 15.2 +/- 2.72 years. Five patients were suspected to have either DVT or PE postoperatively (0.67%). The overall incidence of symptomatic confirmed VTE after knee arthroscopic procedures was 0.27% (one DVT after a partial lateral meniscectomy and one PE after fixation of an osteochondral lesion). CONCLUSIONS: The incidence of VTE after pediatric sports medicine knee arthroscopies is low, 0.27%. Patients who present with calf swelling or pain, chest pain, or shortness of breath after arthroscopic surgery should be examined closely. LEVEL OF EVIDENCE: Level III. PMID- 29035981 TI - Clinical Utility of Oculomotor and Electrophysiological Measures in Identifying Concussion History. AB - OBJECTIVE: To examine whether oculomotor and electrophysiological measures improve the clinical performance of the typical concussion protocol for classifying collegiate athletes with a history of concussion. DESIGN: Cross sectional. SETTING: University Athletic Medicine and Research Facility. PARTICIPANTS: Forty-five varsity collegiate athletes. INDEPENDENT VARIABLES: Collegiate varsity athletes with or without a history of a diagnosed concussion. MAIN OUTCOME MEASURES: Multivariate receiver operating curve and area under the curve (AUC) analyses tested the clinical performance of the typical concussion protocol (symptoms, postural control, neuropsychological abilities). We examined differences in clinical performance between this protocol and after adding reflexive saccade and event-related potential (ERP) indices. Hypotheses were formed after data collection. RESULTS: Significant AUCs were demonstrated for the typical concussion protocol (model 1: AUC = 0.75, P = 0.007), after adding reflexive saccade eye excursion gain (model 2: AUC = 0.80, P = 0.001), and ERPs (model 3: AUC = 0.79, P = 0.002). The AUC for reflexive saccades and ERPs was significant (model 4: AUC = 0.70, P = 0.030). Model 2's increased clinical performance compared with model 1 was nonsignificant, chi(2) = 1.871, P = 0.171. CONCLUSIONS: All 4 models demonstrated adequate sensitivity and specificity for classifying athletes with a previous concussion. Adding reflexive saccades and ERPs did not significantly increase clinical performance of the typical concussion protocol. Future research should determine the clinical utility of saccades and ERPs for acute postconcussion assessments. PMID- 29035982 TI - Comparison of the Effect of 5 Different Treatment Options for Managing Patellar Tendinopathy: A Secondary Analysis. AB - OBJECTIVE: Currently, no treatments exist for patellar tendinopathy (PT) that guarantee quick and full recovery. Our objective was to assess which treatment option provides the best chance of clinical improvement and to assess the influence of patient and injury characteristics on the clinical effect of these treatments. DESIGN: A secondary analysis was performed on the combined databases of 3 previously performed double-blind randomized controlled trials. PATIENTS: In total, 138 patients with PT were included in the analysis. INTERVENTIONS: Participants were divided into 5 groups, based on the treatment they received: Extracorporeal shockwave therapy (ESWT) (n = 31), ESWT plus eccentric training (n = 43), eccentric training (n = 17), topical glyceryl trinitrate patch plus eccentric training (n = 16), and placebo treatment (n = 31). MAIN OUTCOME MEASURES: Clinical improvement (increase of >=13 points on the Victorian Institute of Sport Assessment-Patella score) after 3 months of treatment. RESULTS: Fifty-two patients (37.7%) improved clinically after 3 months of treatment. Odds ratios (ORs) for clinical improvement were significantly higher in the eccentric training group (OR 6.68, P = 0.009) and the ESWT plus eccentric training group (OR 5.42, P = 0.015) compared with the other groups. We found evidence that a high training volume, a longer duration of symptoms, and older age negatively influence a treatment's clinical outcome (trend toward significance). CONCLUSIONS: Our study confirmed the importance of exercise, and eccentric training in particular, in the management of PT. The role of ESWT remains uncertain. Further research focusing on the identified prognostic factors is needed to be able to design patient-specific treatment protocols for the management of PT. PMID- 29035983 TI - Injury Pattern in Icelandic Elite Male Handball Players. AB - OBJECTIVE: To examine the incidence, type, location, and severity of injuries in Icelandic elite male handball players and compare across factors like physical characteristics and playing position. DESIGN: Prospective cohort study. SETTING: The latter part of the preseason and the competitive season of Icelandic male handball. PARTICIPANTS: Eleven handball teams (185 players) from the 2 highest divisions in Iceland participated in the study. Six teams (109 players) completed the study. VARIABLES MEASURED: Injuries were recorded by the players under supervision from their team physiotherapists or coaches. Coaches recorded training exposure, and match exposure was obtained from the Icelandic and European Handball Federations. The players directly recorded potential risk factors, such as age, height, weight, previous injuries, and player position. MAIN OUTCOME MEASURES: Injury incidence and injury location and number of injury days. RESULTS: Recorded time-loss injuries were 86, of which 53 (62%) were acute and 33 (38%) were due to overuse. The incidence of acute injuries was 15.0 injuries/1000 hours during games and 1.1 injuries/1000 hours during training sessions. No significant difference was found in injury incidence between teams, but number of injury days did differ between teams (P = 0.0006). Acute injuries were most common in knees (26%), ankles (19%), and feet/toes (17%), but overuse injuries occurred in low back/pelvic region (39%), shoulders (21%), and knees (21%). Previous knee injuries were the only potential risk factor found for knee injury. CONCLUSIONS: The results indicate a higher rate of overuse injuries in low back/pelvic region and shoulders than in comparable studies. PMID- 29035984 TI - Risk Factors for Lower-Extremity Injuries Among Contemporary Dance Students. AB - OBJECTIVE: To determine whether student characteristics, lower-extremity kinematics, and strength are risk factors for sustaining lower-extremity injuries in preprofessional contemporary dancers. DESIGN: Prospective cohort study. SETTING: Codarts University of the Arts. PATIENTS: Forty-five first-year students of Bachelor Dance and Bachelor Dance Teacher. ASSESSMENT OF RISK FACTORS: At the beginning of the academic year, the injury history (only lower-extremity) and student characteristics (age, sex, educational program) were assessed using a questionnaire. Besides, lower-extremity kinematics [single-leg squat (SLS)], strength (countermovement jump) and height and weight (body mass index) were measured during a physical performance test. MAIN OUTCOME MEASURES: Substantial lower-extremity injuries during the academic year were defined as any problems leading to moderate or severe reductions in training volume or in performance, or complete inability to participate in dance at least once during follow-up as measured with the Oslo Sports Trauma Research Center (OSTRC) Questionnaire on Health Problems. Injuries were recorded on a monthly basis using a questionnaire. Analyses on leg-level were performed using generalized estimating equations to test the associations between substantial lower-extremity injuries and potential risk factors. RESULTS: The 1-year incidence of lower-extremity injuries was 82.2%. Of these, 51.4% was a substantial lower-extremity injury. Multivariate analyses identified that ankle dorsiflexion during the SLS (OR 1.25; 95% confidence interval, 1.03-1.52) was a risk factor for a substantial lower extremity injury. CONCLUSIONS: The findings indicate that contemporary dance students are at high risk for lower-extremity injuries. Therefore, the identified risk factor (ankle dorsiflexion) should be considered for prevention purposes. PMID- 29035985 TI - QT Corrections for Long QT Risk Assessment: Implications for the Preparticipation Examination. AB - BACKGROUND: Because sudden cardiac death (SCD) in the young mainly occur in individuals with structurally normal hearts, improved screening techniques for detecting inherited arrhythmic diseases are needed. The QT interval is an important screening measurement; however, the criteria for detecting an abnormal QT interval are based on Bazett formula and older populations. OBJECTIVE: To define the normal upper limits for QT interval from the electrocardiograms (ECGs) of healthy young individuals, compare the major correction formula and propose new QT interval thresholds for detecting those at risk of SCD. METHODS: Young active individuals underwent ECGs as part of routine preparticipation physical examinations for competitive sports or community screening. This was a nonfunded study using de-identified data with no follow-up. RESULTS: There were 31 558 subjects: 2174 grade school (7%), 18 547 high school (59%), and 10 822 college (34%). Mean age was 17 (12-35 years), 45% were female, 67% white, and 11% of African descent. Bazett performed least favorably for removing the effect of heart rate (HR), whereas Fridericia performed the best. Fridericia correction also closely fit the raw data best (R of 0.65), and at percentile values applicable to screening. The recommended risk cut points using Bazetts correction identified less than half of the athletes in the 99th or 99.5th percentiles of the uncorrected QT by HR range. Use of Fridericia correction increased capture rates by over 50%. CONCLUSION: Our results support the application of the Fridericia-corrected threshold of 460 for men and 470 milliseconds for women (and 485 milliseconds for marked prolongation) rather than Bazett correction for the preparticipation examination. PMID- 29035986 TI - Long-Term Outcome of Mini-Open Surgical Decompression for Chronic Exertional Compartment Syndrome of the Forearm in Professional Motorcycling Riders. AB - OBJECTIVE: To evaluate results of mini-open fasciotomy (MOF) in high-level motorcycling or motocross riders with chronic exertional compartment syndrome (CECS) at long-term follow-up (minimum 5 years). DESIGN: Case series. LEVEL OF EVIDENCE: IV. SETTING: University Hospital/Private Practice. PATIENTS: Fifty-four professional motorcycling riders treated with MOF for a CECS of the forearm from January 2006 to June 2011. Inclusion criteria comprised: high-level motorcycling or motocross riders, clinical symptoms of CECS for at least 6 months, diagnosis confirmed using preoperative compartment hydrostatic pressure measurement and/or magnetic resonance imaging of the forearm, minimum follow-up of 5 years. INTERVENTIONS: A MOF to obtain decompression of all compartments was performed in all patients. MAIN OUTCOME MEASURES: Visual analog scale; a subjective scale to measure strength; QuickDash functional scores. Time to resume full riding capacities as short-term evaluation. RESULTS: A total of 54 patients who underwent 77 MOF procedures overall (23 bilateral) were included. The mean age was 23.6 +/- 5.2 years. Mean Visual Analog Scale decreased from a preoperative value of 68.2 to a 3-month postoperative value of 26 (P < 0.001). Mean QuickDash scale was 84 at preoperative registration, falling to 20, 3 months after surgery (P < 0.001) and down to 12 at 1-year follow-up (P = 0.017). The average time to return to full riding capacities was 3.5 +/- 1 week. CONCLUSIONS: Mini-open fasciotomy resulted safe and effective for the treatment of chronic exertional compartment syndrome in high-level motorcycling or motocross riders. The good outcome at follow-up resulted stable at 5 years and the incidence of complications remained low. Our data demonstrate that the resolution of symptoms is reliable and durable. Pain recovery was immediate after surgery, instead functional scores showed a more gradual recovery throughout the 12 months after surgery. CLINICAL RELEVANCE: Mini-open fasciotomy is a reliable treatment for CECS of the forearm in professional motorcycling riders. This treatment should also be considered in young riders due to the absence of tardive relapse reported in this study. PMID- 29035987 TI - Low-Intensity Pulsed Ultrasound for Early-Stage Lumbar Spondylolysis in Young Athletes. AB - OBJECTIVE: To examine the effect of low-intensity pulsed ultrasound (LIPUS) on early-stage spondylolysis in young athletes. DESIGN: Case-control study. SETTING: A single outpatient orthopedic and sports clinic. PATIENTS: A total of 82 young athletes (80 boys and 2 girls; mean age, 14.8 years; range, 10-18 years) with early-stage lumbar spondylolysis were enrolled in this study. All patients were examined by plain radiography and magnetic resonance imaging. INTERVENTIONS: Patients received either standard conservative treatment combined with LIPUS (n = 35) or without LIPUS (n = 47), according to the sequence of admission. The standard conservative treatment included thoracolumbosacral brace, sports modification, and therapeutic exercise. MAIN OUTCOME MEASURES: The time required to return to previous sports activities was analyzed by using Kaplan-Meier methods with the log-rank test. RESULTS: The baseline parameters of both groups were not significantly different. The median time to return to previous sports activities was 61 days [95% confidence interval (CI): 58-69 days] in the group treated with LIPUS, which was significantly shorter than that of the group treated without LIPUS (167 days, 95% CI: 135-263 days; P < 0.01). CONCLUSIONS: These results suggest that LIPUS combined with conservative treatment for early stage lumbar spondylolysis in young athletes could be a useful therapy for quick return to playing sports. PMID- 29035988 TI - Helmet Use and Risk-Taking Behavior Among Skiers and Snowboarders. AB - OBJECTIVE: To characterize factors associated with helmet use and risk-taking behavior among recreational skiers and snowboarders. DESIGN: Observational study. SETTING: Large, western United States mountain resort. PARTICIPANTS: 1285 male and female recreational skiers and snowboarders were interviewed during a single winter ski season. INDEPENDENT VARIABLES: Helmet use, demographic, and sport related characteristics. MAIN OUTCOME MEASURES: Brief sensation seeking scale (BSSS) as a measure of risk-taking behavior and self-reported risk compensation. RESULTS: Of the respondents (N = 1285), 17.5%, 12.5%, and 70.0% reported that they never, sometimes, and always wore a helmet, respectively. Multiple linear regression analysis showed that individuals reporting sometimes wearing a helmet had significantly higher BSSS scores than those reporting never wearing a helmet (P = 0.031) or always wearing it (P = 0.018). Male gender, younger age, snowboarding, higher perceived sport ability, more days per year skiing or snowboarding, and more time spent in the terrain park were significantly associated with higher BSSS scores (P < 0.05). Logistic regression analysis focusing on subgroups of respondents who reported either sometimes or always wearing a helmet indicated that the odds of taking more risks when wearing a helmet for inconsistent helmet users was 75% higher than the odds for those who reported always wearing a helmet (P = 0.06). CONCLUSIONS: Inconsistent helmet users have characteristics of risk-taking behavior and risk compensation. Male gender, younger age, snowboarding, higher perceived sport ability, and more time spent on the mountain and in the terrain park are also important determinants of risk-taking behavior. PMID- 29035989 TI - "It Doesn't Make Sense for Us Not to Have One"-Understanding Reasons Why Community Sports Organizations Chose to Participate in a Funded Automated External Defibrillator Program. AB - OBJECTIVE: Implementation of automated external defibrillators (AEDs) in community sports settings is an important component of emergency medical planning. This study aimed to understand motivations for why sports organizations participated in a government-funded program that provided AEDs and associated first-aid training. DESIGN: Face-to-face interviews. SETTING: Community sports organizations in Victoria, Australia. PARTICIPANTS: Representatives from 14 organizations who participated in a government-funded AED program. MAIN OUTCOME MEASURES: Motivations to participate in the AED program were explored using a qualitative descriptive approach. RESULTS: Two overarching themes emerged: awareness of the program and decision to apply. Awareness was gained indirectly through grant advertising in newsletters/emails/web sites and directly through their sporting associations. For most organizations, there was no decision process per se, rather, the opportunity to apply was the key determinant for participating in the program. A duty of care also emerged as a key driving factor, with recognition of AEDs as a valuable asset to communities broadly, not just the participants' immediate sports setting. Reflecting on participation in the program, these participants identified that it was important to increase awareness about AED ownership and use. The program benefits were clearly summed up as being best prepared for a worst-case scenario. DISCUSSION: This study provides new understanding of why community sports organizations apply for an AED and training. The strongest reason was simply the opportunity to acquire this at no cost. Therefore, for wider implementation of AEDs, additional funding opportunities, targeted awareness of these opportunities, and continued promotion of AED importance are recommended. PMID- 29035990 TI - Interruption of the Inferior Vena Cava With Azygos Continuation. AB - This report describes a 19-year-old man with interruption of the inferior vena cava with azygos continuation. Both radionuclide venography and MRI clearly showed venous return of the lower limbs through prominent collateral systems. PMID- 29035991 TI - Myocardial Perfusion SPECT and Cardiac MR Correlative Imaging. AB - An institutional review board-approved retrospective review of 55 patients who received cardiac MRI within 1 year of myocardial SPECT was performed. Forty-nine demonstrated myocardial infarction by MRI. MRI and SPECT agreed in all but 1 case, where SPECT preceded MRI by 97 days. Three cases are presented here: 2 demonstrating congruent MRI and SPECT changes in a vascular distribution status post infarction and a third with a nonvascular pattern of abnormalities related to left ventricular aneurysm in cardiac sarcoidosis. It is useful to review and correlate myocardial SPECT with available cardiac MRI, especially in patients with matching perfusion defects. PMID- 29035992 TI - 18F-FAZA PET/CT Hypoxia Imaging of High-Grade Glioma Before and After Radiotherapy. AB - A 57 year-old man underwent MRI with dynamic susceptibility contrast and dynamic contrast-enhanced perfusion for neurological symptoms suggesting the diagnosis of high-grade glioma. A F-FAZA PET/CT was performed because of the enrollment in a prospective clinical trial. Subsequent radiotherapy treatment has been planned based on conventional imaging; moreover, a F-FAZA PET/CT-guided treatment planning highlighting hypoxic regions has been simulated. After radiotherapy treatment, the man underwent MRI and F-FAZA PET/CT, showing partial response. PMID- 29035993 TI - Uncommon Metastasis to the Pancreas From Adenocarcinoma of the Cervix Detected on Surveillance 18F-FDG PET/CT Imaging. AB - F-FDG PET/CT is a sensitive noninvasive imaging tool for assessment of recurrent disease in patients with carcinoma cervix. Its role in early detection of recurrences especially in asymptomatic patients has been demonstrated well in literature. Metastatic involvement of the pancreas in patients with adenocarcinoma of the cervix is a rare occurrence, reported only few times in literature, and is predominantly documented to be associated with uncommon histopathologies such as neuroendocrine and small cell carcinoma. We report a rare asymptomatic case of adenocarcinoma of the cervix, detected and confirmed to have pancreatic metastasis on surveillance FDG PET/CT imaging. PMID- 29035994 TI - Prostate-Specific Membrane Antigen in Low-Grade Fibromatosis. AB - We report a case of fibromatosis demonstrating prostate-specific membrane antigen (PSMA)-positive scan. A 76-year-old man was under assessment because of rising prostate-specific antigen level. Bone scan showed abnormal soft tissue uptake of Tc-MDP adjacent to the right scapula, compatible with a mass in MRI, thereafter. Because of the unavailability of Ga-PSMA scan in our department and also high cost in other centers, the patient underwent Lu-PSMA for more assessment, which revealed PSMA-avid mass. Pathologic examination confirmed the diagnosis of low grade fibromatosis. This report demonstrates another false-positive result of PSMA scan and highlights the importance of pathologic examination. PMID- 29035995 TI - Internal Auditory Canal Tumor as an Incidental Finding on a Choline PET/CT Scan in a Prostate Cancer Patient. AB - An 84-year-old man with a history of prostate cancer, treated with radiotherapy, presented with an increase in PSA levels. F-choline PET/CT showed foci of increased choline uptake in L4 and L5 vertebrae, suggestive of bone metastases and another focus in the right cerebellopontine angle. A brain MRI revealed a focus of intense contrast enhancement in the same region, consistent with an acoustic neuroma. PMID- 29035996 TI - Radioguided Occult Lesion Localization: Technical Procedures and Clinical Applications. AB - PURPOSE: Regarding radioguided surgery, the concept of "radioguided occult lesion localization" (ROLL) is based on both preoperative interventional imaging and intraoperative radioguided detection of a clinically occult neoplastic lesion. METHODS: This methodology consists in the direct administration into the lesion of Tc-macroaggregated human albumin formed by relatively large particles retained at the injection site, which direct radioguided excisional biopsy. RESULTS: This modality has expanded from the classic application of ROLL for nonpalpable breast lesions to other tumors, such as solitary pulmonary nodules or recurrences from differentiated thyroid carcinoma. In 2011, in order to improve the classification of different radioguided surgical procedures, ROLL applications were included in the more complete concept of GOSTT (Guided intraOperative Scintigraphic Tumor Targeting). This concept was introduced to include the entire range of basic and advanced radioguided procedures necessary to supply a "road map" for the surgeon. CONCLUSIONS: The terms ROLL and GOSTT have further developed by incorporating novel modalities such as hybrid tracers for simultaneous fluorescence and radioactive signal detection and innovative navigation systems based on mixed reality protocols. PMID- 29035997 TI - Stewart-Treves Syndrome on the Lower Extremity Associated to Idiopathic Chronic Lymphedema Visualized on FDG PET/CT. AB - Angiosarcomas are highly malignant and rare tumors of vascular or lymphatic endothelial cell origin with a poor prognosis. Lymphangiosarcoma associated with chronic lymphedema is known as Stewart-Treves syndrome. Stewart-Treves syndrome is primarily described in patients with lymphedema of an upper extremity occurring after breast cancer surgery including radical axillary lymph node dissection and subsequent radiotherapy. It is rarely described in the presence of idiopathic chronic lymphedema of the lower extremities. We present a case of lymphangiosarcoma visualized on F-FDG PET/CT, where Stewart-Treves syndrome is secondary to probably a combination of idiopathic chronic lymphedema of the lower extremities and systemic immunosuppressive treatment. PMID- 29035998 TI - Uterine Metastasis From Gastric Adenocarcinoma Masquerading as Physiologic Endometrial Uptake in FDG PET/CT. AB - A 44-year-old woman with newly diagnosed gastric adenocarcinoma by gastroscopy underwent F-FDG PET/CT to evaluate possible metastasis. The images demonstrated intense activity in the region of uterine corpus, as well as greater gastric curvature. Physiologic uptake of endometrium was initially suspected, given the rarity with which extragenital cancers metastasize to the uterus. Ultimately, the endometrium proved to be mucinous adenocarcinoma of gastric origin based on its shared histological features and compatible immunostaining profile. PMID- 29035999 TI - Effects on 18F-FDG PET/CT Brain Glucose Metabolism in Rectal Cancer Patients Undergoing Neoadjuvant Chemotherapy. AB - PURPOSE: Retrospective study of the effects of anticancer treatment on the brain metabolism of patients diagnosed with rectal cancer based on a large and homogeneous sample of 40 paired F-FDG PET/CT volumes taken from 20 patients. The results are compared to the ones presented by related works to help elucidating the mechanisms of neurotoxicity associated to a decrease in memory, learning and motor skills. PATIENTS AND METHODS: Twenty patients with rectal adenocarcinoma were scanned before and after neoadjuvant chemoradiation based exclusively on 5 fluorouracil and leucovorin. The sample was non-rigidly registered to a common template to allow for the comparison of regional metabolism. Statistical analysis was based on adjusted paired t-tests. RESULTS: The analysis primarily revealed a statistically significant decrease in the metabolism after neoadjuvant chemotherapy at the hypothalamus, putamen, head of the caudate, globus pallidus, red nucleus, substantia nigra, amygdala, cerebellum and the parahippocampal gyrus. The analysis also revealed smaller regions of increased metabolic activity at the middle temporal gyrus, precuneus of the parietal lobe and cuneus of the occipital lobe. CONCLUSIONS: The regions of decreased metabolism detected in the study are related to memory, learning and voluntary movement which is consistent with previous findings based on clinical studies and neuropsychological tests that report impairments on neurocognitive and motor skills associated to these therapies. PMID- 29036000 TI - Unilateral Submandibular Gland Atrophy and Sialolithiasis Diagnosed on 99mTc-MIBI SPECT/CT in a Patient With Primary Hyperparathyroidism. AB - A variety of sequelae of elevated calcium levels are encountered in patients with underlying primary hyperparathyroidism, including stone formation such as calculi in the urinary tract and sialoliths in the salivary glands and ducts. We present a case of a 54-year-old woman with fatigue, myalgia, and poor concentration who was found to have hypercalcemia (corrected calcium, 11.2 mg/dL) and elevated parathyroid hormone level (112 pg/mL), laboratory values consistent with primary hyperparathyroidism. She underwent evaluation with a Tc-MIBI parathyroid SPECT scan that included x-ray CT acquisitions for anatomical localization and attenuation correction. PMID- 29036001 TI - Atlas of Extraosseous Findings Detected by 18F-NaF PET/CT Bone Scan. AB - F-NaF PET/CT is an evolving technique that provides high sensitivity for detection of osseous metastases. In addition to detecting pathological osseous lesions, F uptake is occasionally detected in extraosseous lesions. However, reporting of extraosseous uptake in the literature is limited, and the increasing use of F-NaF PET/CT dictates that interpreting physicians learn to recognize extraosseous findings. An atlas of extraosseous findings detected by F-NaF PET/CT is presented, which includes cases under 2 broad categories: nonneoplastic and neoplastic. PMID- 29036002 TI - Multimodal Imaging in Klippel-Trenaunay-Weber Syndrome: Clinical Photography, Computed Tomoangiography, Infrared Thermography, and 99mTc-Phytate Lymphoscintigraphy. AB - We report the case of a 19-year-old man who presented with a 12-year history of progressive fatigue, feeling hot, excessive sweating, and numbness in the left arm. He had undergone multimodal imaging and was diagnosed as having Klippel Trenaunay-Weber syndrome (KTWS). This is a rare congenital disease, defined by combinations of nevus flammeus, venous and lymphatic malformation, and hypertrophy of the affected limbs. Lower extremities are affected mostly. Conventional modalities for evaluating KTWS are ultrasonography, CT, MRI, lymphoscintigraphy, and angiography. There are few reports on multimodal imaging of upper extremities of KTWS patients, and this is the first report of an infrared thermography in KTWS. PMID- 29036003 TI - 68Ga-Prostate-Specific Membrane Antigen-Avid Tubercular Lesions Mimicking Prostate Cancer Metastasis on Simultaneous Prostate-Specific Membrane Antigen PET/MRI. AB - Ga-prostate-specific membrane antigen (PSMA) has gained increasing interest as a target molecule in imaging of prostate cancer because of its selective overexpression in local prostate cancer lesions and metastasis. We report a case of a 62-year-old man with raised serum prostate-specific antigen levels who presented for Ga-PSMA HBED-CC simultaneous PET/MRI for prostate cancer evaluation. A PSMA-nonavid PI-RADS 5 (Prostate Imaging-Reporting and Data System) lesion was confirmed as adenocarcinoma on histopathology. The PSMA-avid lesions were noted in the calvarium and lung, with the calvarial lesion confirmed to be of tubercular etiology on biopsy, and both lesions subsequently responded to antitubercular treatment. PMID- 29036004 TI - The utility of clinical ultrasonography in identifying distal forearm fractures in the pediatric emergency department. AB - OBJECTIVE: The aim of this study is to evaluate the utility of Point-Of-Care Ultrasound (POCUS) for diagnosing distal forearm fractures in pediatric emergency departments (ED). PATIENTS AND METHODS: A prospective observational study was carried out in children aged younger than 15 years attended in an ED with an indication of radiography because of a suspected distal forearm fracture. The POCUS was performed considering cortical irregularity or disruption compatible with fracture. Then, the radiography was requested and the patient was evaluated by an ED traumatologist. Both tests were blinded to each other. The radiograph was considered to be the reference diagnostic test. Diagnostic validation tests were performed. RESULTS: A total of 115 patients [mean age: 9.1 (SD: 3.1) years; 50.4% males] were included, with 57 of these presenting fractures: 42 (73.7%) single bone fractures and 15 (26.3%) combined fractures of the radius and ulna. As such, 72 fractures were detected (prevalence 31.3%). The sensitivity and specificity of POCUS for detecting fractures were 94.4% [95% confidence interval (CI): 86.4-98.5] and 96.8% (95% CI: 92.8-99.0), respectively. The positive and negative predictive values were 93.2% (95% CI: 84.7-97.7) and 97.5% (95% CI: 93.6 99.3), respectively. CONCLUSION: POCUS enables the clinical diagnosis of distal forearm fractures in ED. In addition, this is a highly accurate technique that can be applied easily by the ED pediatrician. As such, its inclusion as part of the physical examination could improve the accuracy of the clinical diagnosis and the global management of the patient. PMID- 29036005 TI - In-Office Sutureless Correction of Prolapsed Subconjunctival Orbital Fat. AB - PURPOSE: To describe a minimally invasive, sutureless, small incision surgical technique for the treatment of subconjunctival orbital fat prolapse (SOFP) performed using local anesthesia in an office setting. METHODS: Retrospective study of the surgical outcome of 45 patients with either bilateral or unilateral SOFP treated by a single surgeon (R.S.) between July 2010 and February 2015. RESULTS: Forty-five patients (39 male, 6 female) had a mean age of 67 years. Fat prolapse was bilateral in 23 patients (51%). A total of 68 eyes were operated on. All surgeries were without any intra- or postoperative complications such as infection, dry-eye symptoms, ocular motility impairment, or recurrence with a mean follow up of 37 months. All patients had a favorable postoperative cosmetic improvement. CONCLUSIONS: The authors propose an office-based, cost-effective, minimally invasive, sutureless technique for treating SOFP with local anesthesia in a safe and effective manner. The lack of complications or recurrence with an adequate follow-up period following this technique is encouraging. Surgeons should consider this technique in the surgical correction of SOFP. PMID- 29036007 TI - Trends of Cholecystectomies for Presumed Biliary Dyskinesia in Children in the United States. AB - BACKGROUND: Biliary dyskinesia (BD) is a controversial clinical entity. Standardized diagnostic test and management guidelines are lacking in children. Published data suggest that long-term outcomes of surgical and medical management are similar. We sought to determine national population-based trends of cholecystectomies performed in children for BD and associated healthcare expenditure in the United States during a 10-year period. METHODS: Using Nationwide Inpatient Sample and the International Classification of Diseases, the 9th revision clinical modification codes, we identified children who had a cholecystectomy for BD from 2002 to 2011 in the United States. RESULTS: A total of 66,380 cholecystectomies were identified as primary procedural diagnosis using weighted analysis from 2002 to 2011 in children. BD was the primary indication for cholecystectomy in 6674 (10.8%) of the patients. During the study period, the number of cholecystectomies performed for BD in children increased from 6.6% in 2002 to 10.6% in 2011, and a majority were adolescent white females. The annual health care expenditure for surgical management of BD for children in the US was estimated to almost $16 million/year. CONCLUSIONS: Despite lack of standardized diagnostic criteria and variable outcomes of surgical intervention reported in pediatric literature, cholecystectomies are commonly performed for children with BD in the United States. Consensus guidelines for the diagnosis and management of this controversial disorder in children are needed. PMID- 29036006 TI - Blood Perfusion in Human Eyelid Skin Flaps Examined by Laser Speckle Contrast Imaging-Importance of Flap Length and the Use of Diathermy. AB - PURPOSE: It is well known that blood perfusion is important for the survival of skin flaps. As no study has been conducted to investigate how the blood perfusion in human eyelid skin flaps is affected by the flap length and diathermy, the present study was carried out to investigate these in patients. METHODS: Fifteen upper eyelids were dissected as part of a blepharoplastic procedure, releasing a 30-mm long piece of skin, while allowing the 5 mm wide distal part of the skin to remain attached, to mimic a skin flap (hereafter called a "skin flap"). Blood perfusion was measured before and after repeated diathermy, using laser speckle contrast imaging. RESULTS: Blood perfusion decreased from the base to the tip of the flap: 5 mm from the base, the perfusion was 69%, at 10 mm it was 40%, at 15 mm it was 20%, and at 20 mm it was only 13% of baseline values. Diathermy further decreased blood perfusion (measured 15 mm from the base) to 13% after applying diathermy for the first time, to 6% after the second and to 4% after the third applications of diathermy. CONCLUSIONS: Blood perfusion falls rapidly with distance from the base of skin flaps on the human eyelid, and diathermy reduces blood perfusion even further. Clinically, it may be advised that flaps with a width of 5 mm be no longer than 15 mm (i.e., a width:length ratio of 1:3), and that the use of diathermy should be carefully considered. PMID- 29036009 TI - Exchangeable Zinc Pool Size at Birth in Pakistani SGA and AGA Infants Do Not Differ but are Lower than in US Infants. AB - OBJECTIVES: Small for gestational age (SGA) infants are more susceptible to infectious morbidity and growth faltering compared to their appropriate for gestational age (AGA) counterparts. Zinc supplementation of SGA infants may be beneficial but the underlying susceptibility to zinc deficiency of SGA infants has not been examined. METHODS: In a community-based, observational, longitudinal study in a peri-urban settlement of Karachi, Pakistan, we compared the size of the exchangeable zinc pools (EZP) in term SGA and AGA infants at birth and at 6 months of age, hypothesizing that the EZP would be lower in the SGA group. To measure EZP size, a zinc stable isotope was intravenously administered within 48 hours of birth (n = 17 and 22) at 6 months (n = 11 and 14) in SGA and AGA infants, respectively. Isotopic enrichment in urine was used to determine EZP. RESULTS: No significant difference was detected in the mean (+/- SD) EZP between SGA and AGA infants at birth, with values of 9.8 +/- 3.5 and 10.1 +/- 4.1 mg/kg, respectively (p = 0.86), or at 6 months. Longitudinal EZP measurements demonstrated a significant decline in EZP relative to body weight in both groups at 6 months (p < 0.001). Mean EZP (adjusted for body weight) size at birth for the combined Pakistani groups was significantly lower than U.S. AGA infants at birth (p = 0.017). CONCLUSIONS: These results did not support a difference in zinc endowment between SGA and AGA Pakistani infants. However, they do suggest lower in utero zinc transfer to the fetus in a setting where poor maternal nutritional status may confer a high susceptibility to postnatal zinc deficiency. PMID- 29036008 TI - Ethnic Disparity in the Incidence and Outcome of Biliary Atresia in New Zealand. AB - To determine incidence and outcome of biliary atresia (BA) between ethnic groups in New Zealand (NZ), a retrospective review was undertaken of children with BA born between 2002 and 2014. Prioritized ethnicity was used to determine ethnicity and was compared to population data. Uni- and multivariate analyses were undertaken to determine demographic and biochemical factors associated with outcome. Overall incidence was 1 in 9181 (Maori 1 in 5285; European 1 in 16,228; P < 0.0001). Overall and transplant-free survival rates at 1, 2, and 5 years were 92%, 86%, 82% and 70%, 49%, 30% respectively with Maori having improved transplant-free survival (P < 0.05) despite European children undergoing Kasai earlier (49 vs 63 days). BA is more common in NZ than Europe and North America, which is attributable to a higher incidence in Maori but overall outcome is poorer. Maori have improved transplant-free survival compared to NZ European children but the reason is unknown. PMID- 29036010 TI - Reasoning Beyond the Potential Use of Exclusive Enteral Nutrition and Other Specified Diets in Children With Ulcerative Colitis. AB - The incidence of inflammatory bowel disease (IBD) is steadily on the rise in Western and in developing countries paralleling the increase of westernized diets, characterized by high protein and fat as well as excessive sugar intake, with less vegetables and fiber. Furthermore, nutrition is involved in several aspects of pediatric IBD, ranging from disease etiology to induction and maintenance of remission of disease. Exclusive enteral nutrition (EEN) has been shown to induce remission, including in patients with isolated colonic disease, and leads to mucosal healing in Crohn disease. One hypothesis for the beneficial effect of this modality is exclusion of dietary components thought to cause dysbiosis or impair innate immune mechanisms such as the mucous layer, intestinal permeability or colonization and adherence with adherent-invasive Escherichia coli. Although there is not yet definitive data illustrating a role for EEN in the management of active ulcerative colitis (UC), there are several lines of evidence that illustrate that dietary interventions may be helpful. In particular, the key mechanisms of the activity of EEN (namely, changes in the intestinal microflora in Crohn disease) are likely also relevant to UC. Furthermore, the use of EEN in pediatric UC patients may add to a better bone health. Prospective studies are now required to evaluate the role of EEN in UC in children. PMID- 29036011 TI - Evaluating the Impact of Prescription Fill Rates on Risk Stratification Model Performance. AB - BACKGROUND: Risk adjustment models are traditionally derived from administrative claims. Prescription fill rates-extracted by comparing electronic health record prescriptions and pharmacy claims fills-represent a novel measure of medication adherence and may improve the performance of risk adjustment models. OBJECTIVE: We evaluated the impact of prescription fill rates on claims-based risk adjustment models in predicting both concurrent and prospective costs and utilization. METHODS: We conducted a retrospective cohort study of 43,097 primary care patients from HealthPartners network between 2011 and 2012. Diagnosis and/or pharmacy claims of 2011 were used to build 3 base models using the Johns Hopkins ACG system, in addition to demographics. Model performances were compared before and after adding 3 types of prescription fill rates: primary 0-7 days, primary 0 30 days, and overall. Overall fill rates utilized all ordered prescriptions from electronic health record while primary fill rates excluded refill orders. RESULTS: The overall, primary 0-7, and 0-30 days fill rates were 72.30%, 59.82%, and 67.33%. The fill rates were similar between sexes but varied across different medication classifications, whereas the youngest had the highest rate. Adding fill rates modestly improved the performance of all models in explaining medical costs (improving concurrent R by 1.15% to 2.07%), followed by total costs (0.58% to 1.43%), and pharmacy costs (0.07% to 0.65%). The impact was greater for concurrent costs compared with prospective costs. Base models without diagnosis information showed the highest improvement using prescription fill rates. CONCLUSIONS: Prescription fill rates can modestly enhance claims-based risk prediction models; however, population-level improvements in predicting utilization are limited. PMID- 29036014 TI - A family with two cases of melanocytic tumors and fragile X syndrome. AB - Fragile X syndrome (FXS), a leading cause of inherited intellectual disability, most commonly results from an expansion of the CGG trinucleotide repeat in the fragile X mental retardation 1 (FMR1) gene to more than 200 copies (full mutation). The FXS phenotype differs by sex and is associated with intellectual and cognitive impairment, characteristic physical features, epilepsy, and/or behavioral challenges including autism spectrum disorder. In this patient population, tumors involving blood cells, digestive organs, the central nervous system, and testes have been described, but melanocytic tumors have not been reported. Here, we describe two maternal cousins with FXS, one of whom has melanoma and the other has atypical nevus syndrome. We discuss possible mechanisms leading to this unusual or possibly coincidental association and the difficulties in the optimal treatment of FXS patients. PMID- 29036012 TI - A Fresh Perspective on a Familiar Problem: Examining Disparities in Knee Osteoarthritis Using a Markov Model. AB - BACKGROUND: Disparities in the presentation of knee osteoarthritis (OA) and in the utilization of treatment across sex, racial, and ethnic groups in the United States are well documented. OBJECTIVES: We used a Markov model to calculate lifetime costs of knee OA treatment. We then used the model results to compute costs of disparities in treatment by race, ethnicity, sex, and socioeconomic status. RESEARCH DESIGN: We used the literature to construct a Markov Model of knee OA and publicly available data to create the model parameters and patient populations of interest. An expert panel of physicians, who treated a large number of patients with knee OA, constructed treatment pathways. Direct costs were based on the literature and indirect costs were derived from the Medical Expenditure Panel Survey. RESULTS: We found that failing to obtain effective treatment increased costs and limited benefits for all groups. Delaying treatment imposed a greater cost across all groups and decreased benefits. Lost income because of lower labor market productivity comprised a substantial proportion of the lifetime costs of knee OA. Population simulations demonstrated that as the diversity of the US population increases, the societal costs of racial and ethnic disparities in treatment utilization for knee OA will increase. CONCLUSIONS: Our results show that disparities in treatment of knee OA are costly. All stakeholders involved in treatment decisions for knee OA patients should consider costs associated with delaying and forgoing treatment, especially for disadvantaged populations. Such decisions may lead to higher costs and worse health outcomes. PMID- 29036015 TI - Transient pituitary ACTH-dependent Cushing syndrome caused by an immune checkpoint inhibitor combination. AB - Immune checkpoint inhibitors have improved survival in numerous advanced malignancies, but are associated with a number of immune-related adverse events, including endocrinopathies. Endogenous Cushing's syndrome (CS) is a rare disorder resulting from exposure to high levels of circulating cortisol. CS can be caused either by adrenal cortex tumors or hyperplasia or by pituitary or extra-pituitary tumors over-secreting ACTH (known as ACTH-dependent CS). We report the first case of transient ACTH-dependent CS, which appeared after combined ipilimumab and nivolumab therapy. Our patient presented typical clinical features of CS after three infusions of combined therapy, high serum and daily urinary free cortisol, and high serum ACTH levels. Pituitary MRI showed an enlargement of the pituitary gland suggesting ACTH secretion of pituitary origin, which was confirmed by inferior petrosal sinus sampling. The pituitary findings were preceded by thyroiditis. The evolution was characterized by spontaneous CS regression and subsequent appearance of severe corticotroph deficiency consistent with destructive hypophysitis. Immunotherapy is a novel cause of CS. PMID- 29036017 TI - Patient-reported outcomes in asthma clinical trials. AB - PURPOSE OF REVIEW: The review provides an overview of the results of asthma clinical trials published in peer review journals in the last 18 months that evaluated patient-reported outcomes (PROs). RECENT FINDINGS: In the last 10 years, health care moved toward a patient-centered approach, which includes patients' perspectives reflecting the impact of a disease and its treatment. SUMMARY: Surprisingly, among the almost 300 clinical trials published in the last one and a half year, PRO evaluation was performed in only 20 studies, and none of them held in a real-life setting. The effort of applying the scientific methods of PRO investigations in asthma clinical trials following a rigorous and systematic approach needs to be highly improved to allow better understanding of patient reported factors. Some recommendations are drawn particularly about PRO assessment in personalized medicine research. The ability of an individual PRO to evaluate choice of treatment and its effectiveness remains to be achieved. PMID- 29036016 TI - Exercise Preserves Physical Function in Prostate Cancer Patients with Bone Metastases. AB - PURPOSE: The presence of bone metastases has excluded participation of cancer patients in exercise interventions and is a relative contraindication to supervised exercise in the community setting because of concerns of fragility fracture. We examined the efficacy and safety of a modular multimodal exercise program in prostate cancer patients with bone metastases. METHODS: Between 2012 and 2015, 57 prostate cancer patients (70.0 +/- 8.4 yr; body mass index, 28.7 +/- 4.0 kg.m) with bone metastases (pelvis, 75.4%; femur, 40.4%; rib/thoracic spine, 66.7%; lumbar spine, 43.9%; humerus, 24.6%; other sites, 70.2%) were randomized to multimodal supervised aerobic, resistance, and flexibility exercises undertaken thrice weekly (EX; n = 28) or usual care (CON; n = 29) for 3 months. Physical function subscale of the Medical Outcomes Study Short-Form 36 was the primary end point as an indicator of patient-rated physical functioning. Secondary end points included objective measures of physical function, lower body muscle strength, body composition, and fatigue. Safety was assessed by recording the incidence and severity of any adverse events, skeletal complications, and bone pain throughout the intervention. RESULTS: There was a significant difference between groups for self-reported physical functioning (3.2 points; 95% confidence interval, 0.4-6.0 points; P = 0.028) and lower body muscle strength (6.6 kg; 95% confidence interval, 0.6-12.7; P = 0.033) at 3 months favoring EX. However, there was no difference between groups for lean mass (P = 0.584), fat mass (P = 0.598), or fatigue (P = 0.964). There were no exercise-related adverse events or skeletal fractures and no differences in bone pain between EX and CON (P = 0.507). CONCLUSIONS: Multimodal modular exercise in prostate cancer patients with bone metastases led to self-reported improvements in physical function and objectively measured lower body muscle strength with no skeletal complications or increased bone pain. TRIAL REGISTRATION: ACTRN12611001158954. PMID- 29036018 TI - Precision medicine in asthma: linking phenotypes to targeted treatments. AB - PURPOSE OF REVIEW: Asthma is a heterogeneous disease consisting of different phenotypes that are driven by different mechanistic pathways. The purpose of this review is to emphasize the important role of precision medicine in asthma management. RECENT FINDINGS: Despite asthma heterogeneity, the approach to management has been on the basis of disease severity, with the most severe patients reserved for the maximum treatments with corticosteroids and bronchodilators. At the severe end, the recent availability of biologic therapies in the form of anti-IgE (omalizumab) and anti-IL5 therapies (mepolizumab and reslizumab) has driven the adaptation of precision medicine. These therapies are reserved for severe asthma with defined either allergic or eosinophilic background, respectively. SUMMARY: Unbiased definition of phenotypes or endotypes (which are phenotypes defined by mechanisms) is an important step towards the use of precision medicine in asthma. Although T2-high asthma has been defined with targets becoming available for treating allergic or eosinophilic asthma, the definition of non-T2 phenotypes remains a priority. Precision medicine is also dependent on the definition of biomarkers that can help differentiate between these phenotypes and pinpoint patients suitable for specific-targeted therapies. Thus, precision medicine links phenotypes (endotypes) to targeted treatments for better outcomes. PMID- 29036020 TI - Novel methods for device and adherence monitoring in asthma. AB - PURPOSE OF REVIEW: The article aims to provide an updated and evidence-based review of the innovative electronic health interventions to monitor and improve inhaler technique and adherence to recommended therapy in asthma. RECENT FINDINGS: Out of the 290 articles identified by the search strategy, 23 manuscripts fulfilled the review inclusion criteria. Included studies mainly addressed m-health, electronic reminders, telemedicine, and inhaler tracker interventions. Investigations were performed both in adults and children. Remarkably, the majority of studies were performed in the most recent years, showing a progressively increasing interest for this field. Existing findings appear to be of moderate-high quality. A significant number of papers, however, were published in scientific journals with a low impact factor (<2). Furthermore, extremely high heterogeneity was found in the considered study endpoints. Collected evidence supports a relevant role for e-health in monitoring and improving inhaler use and treatment adherence in asthma. The patients' acceptance and satisfaction towards assessed interventions were also found to be positive. SUMMARY: E-health represents a highly valuable tool for achieving optimal and personalized asthma management. Unanimously agreed and adopted standards for conducting trials and reporting results on e-health in asthma are however needed to fully understand its real added value. PMID- 29036019 TI - Targeting the interleukin-4 and interleukin-13 pathways in severe asthma: current knowledge and future needs. AB - PURPOSE OF REVIEW: Severe asthma is a heterogeneous disease that can be classified into phenotypes and endotypes based upon clinical or biological characteristics. Interleukin (IL)-4 and IL-13 play a key role in type 2 (T2) asthma. This article reviews the signaling pathway of IL-4 and IL-13 and highlights its targeted therapy in severe asthma. RECENT FINDINGS: Several clinical trials of biologics targeting the IL-4/IL-13 pathway have recently been completed. In patients with severe, uncontrolled asthma, targeting IL-13 alone with biologics including lebrikizumab and tralokinumab has not shown consistent reduction in asthma exacerbations. Simultaneous targeting of both IL-4 and IL-13 by blocking IL-4 receptor alpha using dupilumab has yielded more consistent results in reducing asthma exacerbations and improving lung function, especially in patients with increased blood eosinophils. Other biomarkers of T2 inflammation such as exhaled nitric oxide and serum periostin may also predict response to biologics targeting the IL-4/IL-13 pathway. SUMMARY: No biologic targeting the IL 4/IL-13 pathway is currently available for treatment of asthma, but emerging data suggest that biologics targeting IL-4 and IL-13 together may benefit patients with T2 high asthma. Additional data are needed about long-term efficacy and safety prior to incorporating these drugs into routine clinical practice. PMID- 29036021 TI - The role of innate lymphoid cells in airway inflammation: evolving paradigms. AB - PURPOSE OF REVIEW: Innate lymphoid cells (ILCs) act as early orchestrators of the immune response, tissue repair, and maintenance of barrier homeostasis. This review summarizes recent findings of the role of ILCs in airway disease and highlights ongoing developments in clinical applications and treatment options. RECENT FINDINGS: On the basis of the transcription factors required for their development and cytokine profiles, ILCs have been classified into three subsets that resemble those of T-helper subtypes. ILCs produce multiple cytokines in response to signals from activated cells in their local environment. Recent studies in both humans and mice showed that ILCs are located at barrier surfaces and play critical roles in inflammatory diseases of the upper and lower airways. SUMMARY: The discovery of ILCs and their characterization in homeostatic and diseased conditions, have brought new insights into innate and adaptive immune responses at mucosal barrier surfaces. The recent progress in understanding the role of ILCs in airway inflammation directs translation of fundamental studies into clinical applications. This knowledge can be useful for future clinical practice. PMID- 29036022 TI - Important Details in Performing and Interpreting the Scratch Collapse Test. AB - : The utility of the scratch collapse test has been demonstrated in examination of patients with carpal and cubital tunnel syndromes and long thoracic and peroneal nerve compressions. In the authors' clinic, this lesser known test plays a key role in peripheral nerve examination where localization of the nerve irritation or injury is not fully understood. Test utility and accuracy in patients with more challenging presentations likely correlate with tester understanding and experience. This article offers a clear outline of all stages of the test to improve interrater reliability. The nuances of test performance are described, including a description of situations where the scratch collapse test is deemed inappropriate. Four clinical scenarios where the scratch collapse test may be useful are included. Corresponding video content is provided to improve performance and interpretation of the scratch collapse test. CLINICAL QUESTION/LEVEL OF EVIDENCE: Diagnostic, V. PMID- 29036023 TI - Percutaneous Mesh Expansion: A Regenerative Wound Closure Alternative. AB - BACKGROUND: Puncture wounds in the 1-mm range usually heal without scars. Stacking rows of these punctures offers a scarless method to generate tissue by mesh expansion. The authors developed a percutaneous mesh expansion procedure and present their experience for its wound closure application. METHODS: Over a 6 year period, the authors applied percutaneous mesh expansion to 65 consecutive patients aged 58 to 101 years (mean, 72 years) with 67 full-thickness calvarial defects ranging in size from 2.5 * 3 cm to 7 * 8 cm (mean, 14 cm) that would have all required flaps for closure. Thirty-six were still anticoagulated, and 20 had prior scalp resections. After tumescent epinephrine anesthesia, the authors temporarily approximate the wound by placing it under strong tension. Using 1.1 mm cutting point needles that selectively sever tissues under tension, the authors inflict rows of staggered alternating punctures over a distance five times the defect width. This results in 20 percent expansion of the meshed area, generating the tissue necessary for defect coverage. When the tension is completely released, closure is performed with simple sutures or staples. The authors avoid overmeshing, especially close to the wound edges, and perform no undermining or additional incisions. RESULTS: At 6-week follow-up, all defects were healed with only a straight resection scar. However, of the 10 defects larger than 5 * 5 cm, five had wound healing delay and three required a small skin graft. No other complication was observed. CONCLUSIONS: Percutaneous mesh expansion is a minimally invasive procedure that harnesses the body's natural capabilities to regenerate across small gaps. It sums these regenerated gaps in a mesh pattern that expands tissues to close complex wounds without flaps or additional incisions. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV. PMID- 29036024 TI - Minimally Invasive, Spring-Assisted Correction of Sagittal Suture Synostosis: Technique, Outcome, and Complications in 83 Cases. AB - BACKGROUND: This series describes the results of minimally invasive strip craniotomy with additional spring distraction. METHODS: Included are the first 83 consecutive patients who underwent this procedure (January 1, 2010, to January 1, 2014). Outcome parameters were collected prospectively and included surgical parameters and complications, the occurrence of papilledema, skull growth, cephalic index, and photographic scores. RESULTS: Duration of surgery was 63 minutes, 19 percent required blood transfusion, and complications were minor. Postoperative papilledema occurred in two patients (2.4 percent). Head growth increased after insertion of the springs and declined afterward to 0.7 SD, comparable to earlier cohorts in the authors' center. The cephalic index increased from 67 before surgery to 74 after surgery and showed a small decrease during the 4-year follow-up. Photographic scores confirmed the initial improvement and showed a trend to further improvement during follow-up. CONCLUSIONS: In this cohort, spring-assisted, minimally invasive strip craniotomy was safe and effective. Results were similar to those from other techniques but with smaller incisions, shorter interventions, reduced blood loss, and a lower incidence of postoperative papilledema. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV. PMID- 29036025 TI - The Fate of the Adipose-Derived Stromal Cells during Angiogenesis and Adipogenesis after Cell-Assisted Lipotransfer. AB - BACKGROUND: Cell-assisted lipotransfer is a process in which fat grafting is supplemented with autologous adipose-derived stromal cells. Since the efficacy of the technique was demonstrated, studies have focused on the mechanism by which cell-assisted lipotransfer enhances the rate of graft survival. However, the microenvironmental changes in donor and recipient tissue associated with cell assisted lipotransfer remain unclear. METHODS: The authors introduced an animal model of cell-assisted lipotransfer using two different transgenic reporter mice. Donor fat from green fluorescent protein-expressing C57BL/6J mice and donor adipose-derived stromal cells from DsRed-expressing C57BL/6J mice were co transplanted into recipient C57BL/6J mice. During adipose remodeling after cell assisted lipotransfer, the fate of each donor adipocyte and donor adipose-derived stromal cell was traced using immunofluorescent staining with the whole-mount method. RESULTS: Adipose-derived stromal cell supplementation altered inflammation and promoted angiogenesis and subsequent revascularization in recipient tissue. Tracing at postoperative week 4 revealed that surviving donor adipose-derived stromal cells participated in angiogenesis by differentiating into endothelial cells. Moreover, newly differentiated fat from donor adipose derived stromal cells and recipient tissue integrated with surviving donor fat, leading to improved retention of the graft. Adipose-derived stromal cell supplementation resulted in a quantitative difference in angiogenesis and adipogenesis during adipose remodeling according to the concentration of adipose derived stromal cells. CONCLUSIONS: The authors characterized the dynamic changes occurring in donor adipose-derived stromal cells and fat and recipient tissue by tracing these cellular components following cell-assisted lipotransfer. The authors' findings highlight the therapeutic value of cell-assisted lipotransfer in tissue transplantation. PMID- 29036026 TI - A Comparison of Functional Outcomes and Therapeutic Costs: Single-Digit Replantation versus Revision Amputation. AB - BACKGROUND: The functional outcomes and therapeutic costs between digit replantation and revision amputation have remained controversial. METHODS: A total of 1023 patients with single-digit traumatic amputation or devascularization who underwent successful digit replantation (failure excluded) or revision amputation from January 1, 2013, to January 1, 2016, were included in this study. All cases were subgrouped based on Tamai level of amputation and the injured digit. The clinical outcomes were assessed using the Michigan Hand Outcomes Questionnaire 1 year after the initial operation. The authors also compared the cost of treatment, the duration of hospitalization, and the duration of sick leave between the two treatments. RESULTS: Replantation of small (level I to V), ring (level I to III), and long (level I) fingers showed no functional benefit compared with initial revision amputation. In contrast, replantation of thumb (level I to V), index (level I to V), long (level II to V), and ring (level IV to V) fingers had better outcomes. The cost of replantation was higher and the durations of hospitalization and sick leave of replantation were also longer compared with the revision amputation group. CONCLUSIONS: Single amputated injuries of small (level I to V), ring (level I to III), and long (level I) fingers are a relative contradiction for replantation. Replantation of thumb (level I to V), index (level I to V), long (level II to V), and ring (level IV to V) fingers showed extra benefit compared with revision amputation. PMID- 29036027 TI - Early Macrophage Infiltration Improves Fat Graft Survival by Inducing Angiogenesis and Hematopoietic Stem Cell Recruitment. AB - BACKGROUND: Fat grafting is a popular soft-tissue filler method; however, its results are variable and technique-dependent. Macrophages are present in fat grafts and closely associated with tissue regeneration. The authors hypothesized that activation/depletion of early macrophages in transferred fat improves/impairs fat graft survival. METHODS: Mouse inguinal fat (approximately 150 mg) was transferred autologously. Fat grafting was first performed without other manipulations to obtain baseline information. Then, liposome-encapsulated clodronate and macrophage-colony stimulating factor were used in a mouse fat grafting model for local macrophage depletion or activation. The authors examined the graft stromal vascular fraction by fluorescence-activated cell sorting at 1, 2, 4, and 12 weeks after transplantation in manipulation and control groups. Graft weight, vascularization, and secreted factors were also compared. RESULTS: Early depletion of macrophages resulted in incompetent angiogenesis, feeble Sca 1/CD45 stem cell recruitment, and eventually a poor retention rate (34 +/- 6 mg versus control 84 +/- 15 mg; p = 0.006), whereas up-regulated macrophages allowed better angiogenesis and survival (117 +/- 12 mg versus control, 84 +/- 15 mg; p = 0.043). CONCLUSIONS: In fat grafting, macrophages and their polarization initiated changes in the levels of dominant secreted factors and influenced blood derived stem cell infiltration, indicating that macrophages were crucial for tissue revascularization. The macrophage manipulation models described here show that graft macrophage number can profoundly influence graft survival. PMID- 29036028 TI - Appropriateness of the Use of Magnetic Resonance Imaging in the Diagnosis and Treatment of Wrist Soft Tissue Injury. AB - BACKGROUND: When diagnosing wrist soft tissue injury, the authors hypothesize that magnetic resonance imaging is used injudiciously and is associated with unnecessary cost. METHODS: A retrospective review was conducted of patients aged 20 to 60 years who underwent magnetic resonance imaging for possible wrist soft tissue injury at a tertiary care center between 2009 and 2014. Treatment recommendation was classified as nonoperative, operative, or equivocal. If the magnetic resonance imaging-directed treatment recommendation differed from the pre-imaging recommendation, it was noted that the imaging influenced patient care (impact study). The cost estimate of an impact study was calculated by dividing the total studies performed by the number of studies that impacted the treatment recommendation and multiplying this value by the institutional wrist magnetic resonance imaging cost ($2246 in 2016). RESULTS: One hundred forty patients were included. Magnetic resonance imaging affected treatment recommendation in 28 percent of patients. Independent predictors of impact on treatment recommendation were "question specific injury" (OR, 9.46; 95 percent CI, 3.18 to 28.16; p < 0.001) and "question scapholunate injury" (OR, 2.88; 95 percent CI, 1.21 to 6.88; p = 0.02). The only independent predictor of surgery was ordering physician (hand surgeon) (OR, 3.69; 95 percent CI, 1.34 to 10.13; p = 0.01). The cost of an impact study ordered by a non-hand surgeon versus a hand surgeon was $13,359 versus $6491, respectively. CONCLUSIONS: The provider must carefully consider the pretest probability of ordering a study that will affect treatment recommendation. Injudicious screening with magnetic resonance imaging ($15,565) incurred a cost nearly seven times the cost of the one imaging scan ($2246) before impacting one treatment recommendation. In the current era of cost containment and bundled payment, diagnostic test probability must be appreciated to guide physician ordering practices. PMID- 29036029 TI - Anterior Skull Base and Pericranial Flap Ossification after Frontofacial Monobloc Advancement. AB - BACKGROUND: Frontofacial monobloc advancement creates a communication between the anterior cranial fossa and nasal cavities. To tackle this issue, transorbital pericranial pedicled flaps are routinely performed in the authors' center. This study aimed to assess the postoperative ossification of the anterior skull base and pedicled flaps following frontofacial monobloc advancement, and to identify factors influencing this ossification. METHODS: Measurements of the skull base only and of the ossified pedicled flaps together with the skull base were performed on computed tomographic scans at the nasofrontal and the nasoethmoid frontal junctions. The total thickness of the skull vault was measured and a qualitative defect score for the anterior skull base was computed. RESULTS: Twenty-two patients who underwent frontofacial monobloc advancement at a median age of 3.1 years (range, 1.9 to 3.6 years) were included: 14 with Crouzon, five with Pfeiffer, and three with Apert syndrome. One year and 5 years after surgery, the distraction gap was completely ossified in the anterior skull base midline in all patients. Ossified pedicled flaps together with the skull base were thicker in patients than in controls at these two time points (p < 0.005 and p < 0.02). Patients with Pfeiffer syndrome had a significantly thicker skull base only and ossified pedicled flaps together with the skull base thicknesses (p = 0.01 and p = 0.03) and lower defect scores than patients with Crouzon or Apert syndrome (p = 0.03) 1 year postoperatively. CONCLUSION: As ossification of the pedicled flaps and total reossification of the anterior skull base midline were observed in all patients, the authors indicate that performing pedicled flaps in frontofacial monobloc advancement surgery could promote the reossification of the anterior skull base. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV. PMID- 29036030 TI - What's New in Shock, November 2017? PMID- 29036031 TI - Value of the Delta Neutrophil Index for Predicting 28-Day Mortality in Patients With Acute Pulmonary Embolism in the Emergency Department. AB - PURPOSE: Acute pulmonary embolism (PE), frequently seen in the emergency department (ED), is a leading cause of cardiovascular morbidity and mortality. The delta neutrophil index (DNI) reflects the fraction of circulating immature granulocytes as a component of the systemic inflammatory response syndrome criteria. The pathogenesis of acute PE is significantly associated with inflammation. The aim of the study was to investigate the clinical usefulness of the DNI as a marker of severity in patients with acute PE admitted to the ED. METHODS: We retrospectively analyzed the data of patients who were diagnosed with acute PE at a single ED, admitted from January 1, 2011 to June 30, 2017. The diagnosis of acute pulmonary embolism was confirmed using clinical, laboratory, and radiological findings. The DNI was determined at presentation. The clinical outcome was all-cause mortality within 28 days of emergency department admission. RESULTS: We included 447 patients in this study. The multivariate Cox regression model demonstrated that higher DNI values on ED admission were significantly associated with short-term mortality (hazard ratio, 1.107; 95% confidence interval, 1.042-1.177). The optimal cut-off DNI value, measured on ED admission, was 3.0%; this value was associated with an increased hazard of 28-day mortality following PE (HR, 7.447; 95% CI, 4.183-13.366; P < 0.001) CONCLUSION:: The DNI value, obtained as part of the complete blood count analysis, can be easily determined without additional burdens of cost or time. A high DNI is useful as a marker to predict 28-day mortality in patients with acute PE. PMID- 29036033 TI - Incidence of Nodal Metastasis and Isolated Aortic Metastases in Patients with Surgically Staged Endometrioid Endometrial Cancer: Erratum. PMID- 29036032 TI - A Physiological Profile of Ovarian Cancer Survivors to Inform Tailored Exercise Interventions and the Development of Exercise Oncology Guidelines. AB - OBJECTIVE: Physical activity has become increasingly important in supportive cancer care. However, physical activity and exercise guidelines for ovarian cancer survivors remain generic. The aim of this narrative review is to summarize existing data regarding the physiological characteristics (treatment-related adverse effects, concurrent comorbidities, body weight and composition, physical fitness and function, and physical activity behavior) of ovarian cancer survivors to further understanding of their cancer-specific physical activity and exercise needs. We also highlight gaps in the current knowledge base. METHODS: We undertook a narrative review of current literature on the physiological status of ovarian cancer survivors. We defined physiological status as treatment-related adverse effects, concurrent comorbidities, body weight and composition, physical fitness and function, and physical activity behavior. RESULTS: In addition to disease- and treatment-related symptoms and adverse effects, the majority of ovarian cancer survivors have comorbidities, which may adversely affect treatment effectiveness and safety, as well as survival. Despite high overweight and obesity rates, a large percentage of women are malnourished at diagnosis, with potentially compromised muscle mass and muscle density. Low muscle density at diagnosis and loss of muscle mass during treatment may be associated with worse survival outcomes. A small number of studies have observed impaired physical function and cardiorespiratory fitness in ovarian cancer survivors. The majority of ovarian cancer survivors are insufficiently active or sedentary. CONCLUSIONS: Our review suggests that ovarian cancer survivors could benefit from physical activity and exercise oncology interventions aimed at addressing detrimental changes to physiological status due to disease and treatment. However, current knowledge gaps regarding the physiological characteristics of ovarian cancer survivors throughout the entire survivorship spectrum challenge the development of tailored exercise intervention studies and exercise oncology guidelines. PMID- 29036034 TI - Investigation of Association Between Borderline Pancreatic Head Cancer and Glucose Uptake by Using Positron-Emission Tomographic Studies. AB - BACKGROUND In the background of the well-known importance of positron-emission tomographic studies (PET) in the prediction of pancreatic oncologic problems, we designed and performed this investigation to study the link between borderline pancreatic head cancer and glucose uptake by using PET. MATERIAL AND METHODS We retrospectively investigated patients during the period of almost 4 years (May 2013 to December 2016). Patients underwent potentially curative resection for borderline exocrine pancreatic head adenocarcinoma without undergoing neoadjuvant therapy. We divided our PET protocol into 2 sets of methods as per renal calyces: 1) U-RC type in which renal calyx (RC) has relatively higher value than that of 18F-fluoro-2-deoxyglucose (18F-FDG) uptake and 2) S-RC type in which renal calyx has similar value than that of 18F-FDG uptake. RESULTS A total of 67 patients were enrolled after reclassification on the basis of majority-agreement. Among these patients, U-RC type was found in 22 patients (32.8%) while S-RC type was found in 45 patients (67.2%). Significant statistical differences were observed for each of the 2 types of pancreatic head cancer (U-RC type and S-RC type) in terms of adjusted cancer antigen 19-9 (CA 19-9), size of the tumor, tumor volume (TV2.8), maximum standard uptake value (SUV?), and lesion glycolysis (LG). A significantly longer disease-free survival time was shown by U-RC type (n=18) pancreatic cancer in comparison to S-RC type (n=42) (25.3 vs. 11.2 months). Additionally, U-RC type (n=4) had higher disease-free survival than did aS-RC type (n=3) (29.4 vs. 12.5 months). CONCLUSIONS Our PET protocol appears to be an indicator for estimation of recurrence of pancreatic head cancer and is as an indispensable asset to oncologists. PMID- 29036035 TI - The treatment path in hepatocellular carcinoma. AB - The treatment approach for hepatocellular carcinoma (HCC) depends on the stage and extent of disease, the severity of the underlying liver disease, and the overall performance status of the patient. Treatment consists of 4 main strategies: surgery (eg, resection and liver transplant), locoregional procedures (eg, ablation and transarterial embolization), systemic therapies, and best supportive care. For patients with early-stage tumors, surgical treatment or ablation can be curative. Patients with intermediate-stage disease can be candidates for embolization, administered as either transarterial chemoembolization (TACE) or transarterial radioembolization (TARE). Systemic therapy is reserved for patients with advanced or unresectable disease. For the past decade, the multitargeted kinase inhibitor sorafenib has been the only agent approved for unresectable HCC. This approval was followed by several clinical trials investigating other multitargeted kinase inhibitors, but none showed any benefit over single-agent sorafenib. Most patients progress after treatment with first-line sorafenib. In April 2017, the US Food and Drug Administration approved regorafenib for patients with HCC who have been previously treated with sorafenib. In a phase 3 trial, regorafenib significantly improved overall survival vs placebo. A consideration with systemic treatments is the proactive management of adverse events, including toxicities associated with the drugs and progression of liver disease. PMID- 29036036 TI - Advances in the management of hepatocellular carcinoma. PMID- 29036037 TI - Recent developments in systemic therapy for hepatocellular carcinoma. PMID- 29036038 TI - The evolving role of radioembolization in hepatocellular carcinoma. PMID- 29036040 TI - Frontline management of chronic lymphocytic leukemia. PMID- 29036039 TI - The treatment path in hepatocellular carcinoma: Further observations. PMID- 29036042 TI - Highlights in Lymphoma From the 2017 ASCO Meeting and the 14th ICML: Commentary. PMID- 29036041 TI - Highlights in Lymphoma From the 2017 American Society of Clinical Oncology Annual Meeting and the 14th International Conference on Malignant Lymphoma. PMID- 29036043 TI - Clarification and unification of the obliquity factor in diffraction and scattering theories: discussion. AB - Two-dimensional (2D) and three-dimensional (3D) diffraction theories form the underlying basis of quantitative phase imaging. This paper reviews how 2D and 3D diffraction theories are developed based on thin and thick object requirements. However, some previously reported work has mixed 2D and 3D theories. This discussion shows that it is possible to enable consistent mixed use of 2D and 3D theories by applying appropriate obliquity factor (OF) modifications. The discussion is concluded with an overall unifying representation for the usage of the OF modifications in 2D and 3D diffraction theories as applied to both thin and thick objects. PMID- 29036044 TI - Moire patterns of curved line quasi-periodic structures. AB - In this work, by using a local reciprocal vector concept, we introduce a considerable number of quasi-periodic structures where each of them is constructed by a set of curved lines with varying period. By using a simple and very comprehensive recently proposed method, formulations and characterizations of the various moire patterns of different pairs of curved line quasi-periodic structures are presented. Some advantages of the concept of local reciprocal vector in the area of curved line quasi-periodic structures are clarified. PMID- 29036045 TI - Long-term memory color investigation: culture effect and experimental setting factors. AB - Memory colors generated continuous interest in the color community. Previous studies focused on reflecting color chips and color samples in real scenes or on monitors. The cognitive effect of culture was rarely considered. In this paper, we performed a comprehensive investigation of the long-term memory colors of 26 familiar objects using the asymmetric color matching method among Chinese and German observers on a display. Three experiments were conducted to evaluate the variations introduced by culture, context-based gray image, and initial matching color. Memory colors of important objects were collected and representative memory colors were quantified in terms of CIELAB L*, a*, and b* values. The intra and inter-observer variations were analyzed by mean-color-difference-from-mean values and chromatic ellipses. The effects of different cultural groups and experimental settings were also shown. PMID- 29036046 TI - Two-sided illumination in rigorous coupled-wave analysis applied to the 4pi microscope. AB - We apply the rigorous coupled-wave analysis (RCWA) to the simulation of 4pi microscopy. To achieve this, the concept of structured illumination [J. Opt. Soc. Am. A31, 2385 (2014)JOAOD60740-323210.1364/JOSAA.31.002385] is combined with the idea of coherent two-sided light incidence. We show how the latter can be integrated into the framework of the RCWA. Furthermore, we derive how light sources with different polarization types, such as linear, radial, or azimuthal polarization, can be realized in a general form. We combine these techniques to simulate two coherent counterpropagating converging beams incident upon a sample, as in 4pi-microscopy. PMID- 29036047 TI - Integral imaging techniques for flexible sensing through image-based reprojection. AB - In this work, a 3D reconstruction approach for flexible sensing inspired by integral imaging techniques is proposed. This method allows the application of different integral imaging techniques, such as generating a depth map or the reconstruction of images on a certain 3D plane of the scene that were taken with a set of cameras located at unknown and arbitrary positions and orientations. By means of a photo-consistency measure proposed in this work, all-in-focus images can also be generated by projecting the points of the 3D plane into the sensor planes of the cameras and thereby capturing the associated RGB values. The proposed method obtains consistent results in real scenes with different surfaces of objects as well as changes in texture and lighting. PMID- 29036048 TI - Laser diode side-pumped Nd:YVO4 microchip laser with film-etched microcavity mirrors. AB - Microchip lasers are applied as the light sources on various occasions with the end-pumping scheme. However, the vibration, the temperature drift, or the mechanical deformation of the pumping light in laser diodes in the end-pumping scheme will lead to instability in the microchip laser output, which causes errors and malfunctioning in the optic systems. In this paper, the side-pumping scheme is applied for improving the disturbance-resisting ability of the microchip laser. The transverse mode and the frequency purity of the laser output are tested. To ensure unicity in the frequency of the laser output, numerical simulations based on Fresnel-Kirchhoff diffraction theory are conducted on the parameters of the microchip laser cavity. Film-etching technique is applied to restrain the area of the film and form the microcavity mirrors. The laser output with microcavity mirrors is ensured to be in single frequency and with good beam quality, which is significant in the applications of microchip lasers as the light sources in optical systems. PMID- 29036049 TI - Partially coherent vortex beams of arbitrary order. AB - We derive analytic solutions for an infinite set of partially coherent vortex beams (PCVBs) of any azimuthal order and for any propagation distance. The correlation singularities of the beams and their orbital angular momentum are investigated. This detailed study of PCVBs opens the possibility of using such beams for remote sensing and free-space optical communications. PMID- 29036050 TI - Auto white balance by surface reflection decomposition. AB - Auto white balance (AWB) is an important operation in color imaging applications. Most existing AWB algorithms rely on some physical features and statistical properties of natural scenes. However, the AWB algorithms using statistical properties are sensitive to the statistics of the scene contents. Therefore, it is highly desirable to find physical features that are more robust and relatively insensitive to scene contents. In this paper, we propose such physical features based on surface reflection decomposition. Light reflection from most object surfaces can be decomposed into a specular component and a diffuse component. Instead of trying to find the common axis of the color planes as in past algorithms, we estimate the illuminant chromaticity by searching through the light source candidates to find the one that will best cancel the specular components. We provide two formulations: the minimum projected area algorithm and the minimum total variation algorithm for estimation of the scene-illuminant chromaticity. Both show very favorable results compared with other published algorithms. PMID- 29036051 TI - Combined measurement system for double shield tunnel boring machine guidance based on optical and visual methods. AB - In order to detect the position of the cutting shield at the head of a double shield tunnel boring machine (TBM) during the excavation, this paper develops a combined measurement system which is mainly composed of several optical feature points, a monocular vision sensor, a laser target sensor, and a total station. The different elements of the combined system are mounted on the TBM in suitable sequence, and the position of the cutting shield in the reference total station frame is determined by coordinate transformations. Subsequently, the structure of the feature points and matching technique for them are expounded, the position measurement method based on monocular vision is presented, and the calibration methods for the unknown relationships among different parts of the system are proposed. Finally, a set of experimental platforms to simulate the double shield TBM is established, and accuracy verification experiments are conducted. Experimental results show that the mean deviation of the system is 6.8 mm, which satisfies the requirements of double shield TBM guidance. PMID- 29036052 TI - Geometrical optics and optimal transport. AB - The Fermat principle is generalized to a system of rays. It is shown that all the ray mappings that are compatible with two given intensities of a monochromatic wave, measured at two planes, are stationary points of a canonical functional, which is the weighted average of the actions of all the rays. It is further shown that there exist at least two stationary points for this functional, implying that in the geometrical optics regime the phase from intensity problem has inherently more than one solution. The caustic structures of all the possible ray mappings are analyzed. A number of simulations illustrate the theoretical considerations. PMID- 29036053 TI - Complex Gaussian representations of partially coherent beams with nonconventional degrees of coherence. AB - We adopt the recently introduced complex Gaussian function to expand the partially coherent beams with nonconventional degrees of coherence, and derive detailed representations of Hermite-Gaussian correlated Schell-model beam, elliptical Laguerre-Gaussian correlated Schell-model beam, and multi-Gaussian correlated Schell-model beam. Complex Gaussian representation of a partially coherent beam provides a convenient way for treating its propagation. As an application example, we explore the self-splitting properties of a Hermite Gaussian correlated Schell-model beam propagating in a uniaxial crystal with the help of the complex Gaussian representation, and it is found that the uniaxial crystal can be used to control the splitting properties. PMID- 29036054 TI - Automated angular and translational tomographic alignment and application to phase-contrast imaging. AB - X-ray computerized tomography (CT) is a 3D imaging technique that makes use of x ray illumination and image reconstruction techniques to reproduce the internal cross-sections of a sample. Tomographic projection data usually require an initial relative alignment or knowledge of the exact object position and orientation with respect to the detector. As tomographic imaging reaches increasingly better resolution, thermal drifts, mechanical instabilities, and equipment limitations are becoming the main dominant factors contributing to sample positioning uncertainties that will further introduce reconstruction artifacts and limit the attained resolution in the final tomographic reconstruction. Alignment algorithms that require manual interaction impede data analysis with ever-increasing data acquisition rates, supplied by more brilliant sources. We present in this paper an iterative reconstruction algorithm for wrapped phase projection data and an alignment algorithm that automatically takes 5 degrees of freedom, including the possible linear and angular motion errors, into consideration. The presented concepts are applied to simulated and real measured phase-contrast data, exhibiting a possible improvement in the reconstruction resolution. A MATLAB implementation is made publicly available and will allow robust analysis of large volumes of phase-contrast tomography data. PMID- 29036055 TI - New separated polynomial solutions to the Zernike system on the unit disk and interbasis expansion. AB - The differential equation proposed by Frits Zernike to obtain a basis of polynomial orthogonal solutions on the unit disk to classify wavefront aberrations in circular pupils is shown to have a set of new orthonormal solution bases involving Legendre and Gegenbauer polynomials in nonorthogonal coordinates, close to Cartesian ones. We find the overlaps between the original Zernike basis and a representative of the new set, which turn out to be Clebsch-Gordan coefficients. PMID- 29036056 TI - Coherent field propagation between tilted planes. AB - Propagating electromagnetic light fields between nonparallel planes is of special importance, e.g., within the design of novel computer-generated holograms or the simulation of optical systems. In contrast to the extensively discussed evaluation between parallel planes, the diffraction-based propagation of light onto a tilted plane is more burdensome, since discrete fast Fourier transforms cannot be applied directly. In this work, we propose a quasi-fast algorithm (O(N3 log N)) that deals with this problem. Based on a proper decomposition into three rotations, the vectorial field distribution is calculated on a tilted plane using the spectrum of plane waves. The algorithm works on equidistant grids, so neither nonuniform Fourier transforms nor an explicit complex interpolation is necessary. The proposed algorithm is discussed in detail and applied to several examples of practical interest. PMID- 29036057 TI - Decomposition of the total wave aberration in generalized optical systems. AB - The increasing use of freeform optical surfaces raises the demand for optical design tools developed for generalized systems. In the design process, surface-by surface aberration contributions are of special interest. The expansion of the wave aberration function into field- and pupil-dependent coefficients is an analytical method used for that purpose. An alternative numerical approach utilizing data from the trace of multiple ray sets is proposed. The optical system is divided into segments of the optical path measured along the chief ray. Each segment covers one surface and the distance to the subsequent surface. Surface contributions represent the change of the wavefront that occurs due to propagation through individual segments. Further, the surface contributions are divided with respect to their phenomenological origin into intrinsic induced and transfer components. Each component is determined from a separate set of rays. The proposed method does not place any constraints on the system geometry or the aperture shape. However, here we concentrate on near-circular apertures and specify the resulting wavefront error maps using an expansion into Zernike polynomials. PMID- 29036058 TI - Nonrigid synthetic aperture radar and optical image coregistration by combining local rigid transformations using a Kohonen network. AB - This study proposes a new algorithm for nonrigid coregistration of synthetic aperture radar (SAR) and optical images. The proposed algorithm employs point features extracted by the binary robust invariant scalable keypoints algorithm and a new method called weighted bidirectional matching for initial correspondence. To refine false matches, we assume that the transformation between SAR and optical images is locally rigid. This property is used to refine false matches by assigning scores to matched pairs and clustering local rigid transformations using a two-layer Kohonen network. Finally, the thin plate spline algorithm and mutual information are used for nonrigid coregistration of SAR and optical images. PMID- 29036059 TI - Modeling astronomical adaptive optics performance with temporally filtered Wiener reconstruction of slope data. AB - We build on a long-standing tradition in astronomical adaptive optics (AO) of specifying performance metrics and error budgets using linear systems modeling in the spatial-frequency domain. Our goal is to provide a comprehensive tool for the calculation of error budgets in terms of residual temporally filtered phase power spectral densities and variances. In addition, the fast simulation of AO corrected point spread functions (PSFs) provided by this method can be used as inputs for simulations of science observations with next-generation instruments and telescopes, in particular to predict post-coronagraphic contrast improvements for planet finder systems. We extend the previous results presented in Correia and Teixeira [J. Opt. Soc. Am. A31, 2763 (2014)JOAOD60740 323210.1364/JOSAA.31.002763] to the closed-loop case with predictive controllers and generalize the analytical modeling of Rigaut et al. [Proc. SPIE3353, 1038 (1998)PSISDG0277-786X10.1117/12.321649], Flicker [Technical Report (W. M. Keck Observatory, 2007)], and Jolissaint [J. Eur. Opt. Soc.5, 10055 (2010)1990 257310.2971/jeos.2010.10055]. We follow closely the developments of Ellerbroek [J. Opt. Soc. Am. A22, 310 (2005)JOAOD60740-323210.1364/JOSAA.22.000310] and propose the synthesis of a distributed Kalman filter to mitigate both aniso-servo lag and aliasing errors while minimizing the overall residual variance. We discuss applications to (i) analytic AO-corrected PSF modeling in the spatial frequency domain, (ii) post-coronagraphic contrast enhancement, (iii) filter optimization for real-time wavefront reconstruction, and (iv) PSF reconstruction from system telemetry. Under perfect knowledge of wind velocities, we show that ~60 nm rms error reduction can be achieved with the distributed Kalman filter embodying antialiasing reconstructors on 10 m class high-order AO systems, leading to contrast improvement factors of up to three orders of magnitude at few lambda/D separations (~1-5lambda/D) for a 0 magnitude star and reaching close to one order of magnitude for a 12 magnitude star. PMID- 29036060 TI - Wave optics simulations of synthetic aperture ladar performance through turbulence. AB - This paper utilizes a combination of theory and simulations to examine synthetic aperture imaging across a wide range of turbulence conditions. Extensive wave optics simulations are used to validate existing theory and to investigate the use of a common measurement technique. It demonstrates the applicability of earlier synthetic aperture laser radar (ladar) (SAL) research across a wide range of turbulence conditions, and examines the metric approaches and limitations for the imaging conditions normally seen in practical SAL systems. To examine the full impact of turbulence on SAL, the derivations, simulations, and analyses include three different resolution metrics as well as a commonly used contrast metric: the integrated sidelobe ratio. This paper demonstrates the integrated effects of turbulence on SAL imaging. Finally, suggestions are given for measuring the true resolving power of operational SAL systems. PMID- 29036061 TI - Wide-field spatiospectral interferometry: theory and imaging properties. AB - The emerging astronomical technique known as wide-field spatiospectral interferometry can provide hyperspectral images with spatial resolutions that are unattainable with a single monolithic-aperture observatory. The theoretical groundwork for operation and data measurement is presented in full detail, including relevant coherence theory. We also discuss a data processing technique for recovering a hyperspectral image from an interferometric data set as well as the unusual effective transfer function of the system. PMID- 29036062 TI - Vector polynomials for direct analysis of circular wavefront slope data. AB - In the aberration analysis of a circular wavefront, Zernike circle polynomials are used to obtain its wave aberration coefficients. To obtain these coefficients from the wavefront slope data, we need vector functions that are orthogonal to the gradients of the Zernike polynomials, and are irrotational so as to propagate minimum uncorrelated random noise from the data to the coefficients. In this paper, we derive such vector functions, which happen to be polynomials. PMID- 29036064 TI - Polarization properties of superposed vector Laguerre-Guassian beams during propagation. AB - We use analytical and numerical techniques to study the superposition of two vector Laguerre-Guassian (LG) beams. Vector LG beams contain rich polarization information and have many interesting intensity and polarization features. The composited electric field shows an inhomogeneous polarization distribution. We focus on looking for the distribution laws for the singularities obtained. The number and positions of singularity points are calculated and confirmed by numerical methods. We also study the fundamental cases for nonconcentric superposed vector LG beams and discover the difference distribution laws of several types of singular points in all the possible combinations. PMID- 29036063 TI - Illuminations that improve color discrimination ability of people with red-green color vision deficiency. AB - In this research, three illuminants that improve color discrimination ability of people with red-green color vision deficiency were developed. The illuminants are close to daylight-colored and were produced by using spectral optimization. Deutans were the focus of this research, but a few protans were also tested for reference. The illuminants were produced by combining different types of LEDs, and their effects were tested with several test subjects with and without color vision deficiency using the Ishihara color vision test and the Farnsworth Panel D 15 test. The illuminant with the most powerful effect provided near perfect results with the Ishihara test for deutans, while the other two illuminants produced smaller improvements. The Farnsworth Panel D-15 test produced results that were similar to the Ishihara test though generally the color discrimination of blue hues was weaker under the most powerful illuminant. PMID- 29036065 TI - Electromagnetic energy stored in inhomogeneous scattering systems. AB - We analytically study the time-averaged electromagnetic energy stored inside scatterers containing inclusions of arbitrary shapes. Assuming the low density of inclusions, we derive the expression for the energy-transport velocity through disordered media without relying on the radiative transfer equation. Moreover, this expression is independent of the shape of scatterers. In addition, we obtain a relation between the dwell and absorption times associated with inclusions by considering the relationship between the internal energy and absorption cross section. An approximation for the electromagnetic energy stored inside a disordered medium in terms of the transport mean free path and the packing fraction is also derived. This expression suggests that the enhanced electromagnetic energy within the host medium is achieved for inclusions exhibiting negative scattering asymmetry parameters. As a result, disordered media with enhanced backscattering is expected to exhibit large quality factors. PMID- 29036066 TI - Analytical theory of real-argument Laguerre-Gaussian beams beyond the paraxial approximation. AB - We study the propagation of real-argument Laguerre-Gaussian beams beyond the paraxial approximation using the perturbation corrections to the complex-argument Laguerre-Gaussian beams derived earlier by Takenaka et al. [J. Opt. Soc. Am. A2, 826 (1985)JOAOD60740-323210.1364/JOSAA.2.000826]. Each higher-order correction to the amplitude of the real-argument beam (l, m) is represented as a superposition of the same-order corrections to the amplitudes of the complex-argument beams (l, q) with q=0,1,2,...,m. We derive explicit expressions for the electric and magnetic fields of transversely and longitudinally polarized real-argument beams and calculate the chirality densities of these beams up to the fourth order of the smallness parameter. For the first time to the best of our knowledge, we show that essentially achiral Gaussian beams (corresponding to l=m=0) possess nonzero chirality density due to the wavefront curvature. The obtained corrections to the paraxial beams may prove useful for precise laser beam shaping and in studies of optomechanical forces. PMID- 29036067 TI - Analyzing visual-search observers using eye-tracking data for digital breast tomosynthesis images. AB - Visual-search (VS) model observers have the potential to provide reliable predictions of human-observer performance in detection-localization tasks. The purpose of this work was to examine some characteristics of human gaze on breast images with the goal of informing the design of our VS observers. Using a helmet mounted eye-tracking system, we recorded the movement of gaze from human observers as they searched for masses in sets of 2D digital breast tomosynthesis (DBT) images. The masses in this study were of a single profile. The DBT images were extracted from image volumes reconstructed with the filtered backprojection method. Fixation times associated with observer points of interest were computed from the observer data. We used the k-mean clustering algorithm to get dwell times of gaze data. The dwell times were then compared to sets of morphological feature values extracted from the images. These features, extracted as cross correlations involving the mass profile and the test image, included the matched filter (MF), gradient MF, Laplacian MF, and adaptive MF. The adaptive MF combining four feature maps was computed using a hotelling discriminant generated from training data. For this investigation, we computed correlation coefficients between the fixation times and the feature values. We also conducted a significance test by computing p-values of correlation coefficients for five features. Of all these features, the adaptive MF provided the highest correlation coefficients for DBT images with different densities. PMID- 29036068 TI - Critical object recognition in millimeter-wave images with robustness to rotation and scale. AB - Locating critical objects is crucial in various security applications and industries. For example, in security applications, such as in airports, these objects might be hidden or covered under shields or secret sheaths. Millimeter wave images can be utilized to discover and recognize the critical objects out of the hidden cases without any health risk due to their non-ionizing features. However, millimeter-wave images usually have waves in and around the detected objects, making object recognition difficult. Thus, regular image processing and classification methods cannot be used for these images and additional pre processings and classification methods should be introduced. This paper proposes a novel pre-processing method for canceling rotation and scale using principal component analysis. In addition, a two-layer classification method is introduced and utilized for recognition. Moreover, a large dataset of millimeter-wave images is collected and created for experiments. Experimental results show that a typical classification method such as support vector machines can recognize 45.5% of a type of critical objects at 34.2% false alarm rate (FAR), which is a drastically poor recognition. The same method within the proposed recognition framework achieves 92.9% recognition rate at 0.43% FAR, which indicates a highly significant improvement. The significant contribution of this work is to introduce a new method for analyzing millimeter-wave images based on machine vision and learning approaches, which is not yet widely noted in the field of millimeter-wave image analysis. PMID- 29036069 TI - Human detection in occluded scenes through optically inspired multi-camera image fusion. AB - In this paper, a novel approach for foreground extraction has been proposed based on a popular three-dimensional imaging technique in optics, called integral imaging. In this approach, multiple viewpoint images captured from a three dimensional scene are used to extract range information of the scene and effectively extract an object or a person, even in the presence of heavy occlusion. The algorithm consists of two parts: depth estimation and reconstruction of the targeted object at the estimated depth distance. Further processing of the resulting reconstructed image can lead to the detection of a face or a pedestrian in the scene, which may not otherwise be detectable due to partial occlusion in each of the views. The validity of our approach has been demonstrated by experimental results in different scenarios. PMID- 29036070 TI - Improvement of contrast sensitivity with practice is not compatible with a sensory threshold account. AB - In forced-choice detection, incorrect responses are routinely ascribed to internal noise, because experienced psychophysical observers do not act as if they have a sensory threshold, below which all perceived intensities would be identical. To determine whether inexperienced observers have sensory thresholds, we examined psychometric functions (percent correct versus log contrast) for detection and detection in full-screen, dynamic visual noise. Over five days, neither type of psychometric function changed shape, but both shifted leftwards, indicating increased sensitivity. These results are not consistent with a lowered sensory threshold, which would decrease psychometric slope. Our results can be understood within the context of Dosher and Lu's "stochastic" perceptual template model [Vis. Res.40, 1269 (2000)], augmented to allow intrinsic uncertainty. Specifically, our results are consistent with a combination of reduced internal additive noise and improved filtering of external noise. PMID- 29036071 TI - Numerical stability of the C method and a perturbative preconditioning technique to improve convergence. AB - The translational coordinate transformation method (the C method) in grating theory is studied numerically and analytically. We first study the convergence characteristics of the C method by numerical computations in high floating-point data precisions. Guided by insights gained from this numerical study we analytically studied condition numbers of the most important eigenvalues of the eigenvalue problem of the C method. Asymptotic estimates of condition numbers of these eigenvalues and estimates of convergence rate of the error in satisfying the Helmholtz equation by the eigenvectors are derived. These theoretical results explain well many observed numerical phenomena of the C method. Using the first order perturbation theory of simple eigenvalues we analyze the effects of round off errors on eigenvalue distribution and condition numbers. This leads to an extremely simple perturbative preconditioning technique that significantly improves the numerical stability of the C method with as little as just one line of code modification. The performance of the perturbatively preconditioned C method is not inferior to the C method preconditioned by the multilinear parameterization technique. We recommend it as the preferred method for modeling deep and smooth gratings. PMID- 29036072 TI - Nonreciprocal waveguiding structures for THz region based on InSb. AB - We have studied theoretically and numerically surface magnetoplasmons in three types of THz guiding structures, namely, InSb/dielectric planar boundary, InSb/air/metal planar waveguide, and symmetric InSb/air/InSb planar waveguide, in the presence of an external magnetic field. We consider the Voigt magneto-optic configuration in which these structures provide a frequency range where only one propagation direction is allowed to support one-way propagation of the surface plasmon polariton, due to nonreciprocity of the structures. To study the dispersion properties associated with unidirectional propagation of magnetoplasmons in finite-size nanostructured waveguides, we have developed an efficient two-dimensional numerical technique based on the magneto-optic aperiodic rigorous coupled-wave analysis. We have shown that the one-way bandwidth can be controlled by an external magnetic field and by the permittivity and thickness of the dielectric guiding layer. To enable numerical simulation, we have utilized the configuration in which the magnetized section of a waveguide is along the direction of propagation sandwiched by the identical waveguide segments without a magnetic field. We have also shown that the one-way bandwidth can be controlled by an external magnetic field and by the permittivity and thickness of the dielectric guiding layer. PMID- 29036073 TI - Principles of image reconstruction in optical interferometry: tutorial. AB - This paper provides a general introduction to the problem of image reconstruction from interferometric data. A simple model of the interferometric observables is given, and the issues arising from sparse Fourier data are discussed. The effects of various regularizations are described. In the proposed general framework, most existing algorithms can be understood. For an astronomer, such an understanding is crucial not only for selecting and using an algorithm but also to ensure correct interpretation of the resulting image. PMID- 29036074 TI - Airplane wing deformation and flight flutter detection method by using three dimensional speckle image correlation technology. AB - Airplane wing deformation is an important element of aerodynamic characteristics, structure design, and fatigue analysis for aircraft manufacturing, as well as a main test content of certification regarding flutter for airplanes. This paper presents a novel real-time detection method for wing deformation and flight flutter detection by using three-dimensional speckle image correlation technology. Speckle patterns whose positions are determined through the vibration characteristic of the aircraft are coated on the wing; then the speckle patterns are imaged by CCD cameras which are mounted inside the aircraft cabin. In order to reduce the computation, a matching technique based on Geodetic Systems Incorporated coded points combined with the classical epipolar constraint is proposed, and a displacement vector map for the aircraft wing can be obtained through comparing the coordinates of speckle points before and after deformation. Finally, verification experiments containing static and dynamic tests by using an aircraft wing model demonstrate the accuracy and effectiveness of the proposed method. PMID- 29036075 TI - Extended Taylor frozen-flow hypothesis and statistics of optical phase in aero optics. AB - We present an extended Taylor frozen-flow model for the statistics of the spatiotemporal disturbances of the index of refraction of air and the phase of an optical beam propagated through the turbulent boundary and shear layers in a high Reynolds-number flow. By incorporating rapid random fluctuations of the flow velocity about a mean convection velocity and an anisotropic spatial power spectrum for the index of refraction, we calculate both the short-delay temporal structure function and the power spectral density of these disturbances. We discuss the predicted scaling behaviors for these quantities in the context of existing experimental observations, showing specifically the agreement of these predictions with some optical phase data obtained by the Airborne Aero-Optical Laboratory. PMID- 29036076 TI - Dual-wavelength polarimeter application in investigations of the optical activity of a langasite crystal. AB - A method of high-accuracy polarimetry, which includes optical activity measurements' systematic errors, was realized with a dual-wavelength polarimeter for the two wavelengths of 635 and 650 nm. Simultaneous measurements with neighboring wavelengths significantly improved the data processing by increasing the amount of obtained data to eliminate the systematic errors. For a langasite crystal, La3Ga5SiO14, we measured the temperature dependence of the gyration tensor component g11. Our acquired value does not exceed 0.47*10-5 and is much smaller than the previous results obtained by different experimental methods. The results presented in this paper are consistent with the calculated optical rotatory power from the crystal structure data and the polarizabilities of the atoms. PMID- 29036077 TI - Propagating Bloch bound states with orbital angular momentum above the light line in the array of dielectric spheres. AB - We present propagating Bloch bound states in the radiation continuum with orbital angular momentum in an infinite linear periodical array of dielectric spheres. The bound states in the continuum demonstrate a giant Poynting vector spiraling around the array. They can be excited by a plane wave with incident linear polarization with a small tilt relative to the axis of the array. PMID- 29036078 TI - Propagation properties of a partially coherent Lorentz beam in uniaxial crystal orthogonal to the optical axis. AB - The cross-spectral density function of a partially coherent Lorentz beam propagating in uniaxial crystal orthogonal to the optical axis is obtained, and the evolution properties and the spectral degree of coherence for a partially coherent Lorentz beam in uniaxial crystal are illustrated by using numerical examples. The influence of coherence length and the ratio of refractive index ne/no on the normalized intensity and spectral degree of coherence for a partially coherent Lorentz beam are analyzed in detail. PMID- 29036079 TI - Calculating corner singularities by boundary integral equations. AB - Accurate numerical solutions for electromagnetic fields near sharp corners and edges are important for nanophotonics applications that rely on strong near fields to enhance light-matter interactions. For cylindrical structures, the singularity exponents of electromagnetic fields near sharp edges can be solved analytically, but in general the actual fields can only be calculated numerically. In this paper, we use a boundary integral equation method to compute electromagnetic fields near sharp edges, and construct the leading terms in asymptotic expansions based on numerical solutions. Our integral equations are formulated for rescaled unknown functions to avoid unbounded field components, and are discretized with a graded mesh and properly chosen quadrature schemes. The numerically found singularity exponents agree well with the exact values in all the test cases presented here, indicating that the numerical solutions are accurate. PMID- 29036080 TI - Influence of polarization aberrations on point images. AB - In this paper, we derive Marechal-type approximations for the unpolarized imaging of points in the presence of small retardation and diattenuation. As the representation of such polarization aberrations is ambiguous in general, we show the independence of the results on choices and suggest modified definitions. PMID- 29036081 TI - Polynomial modal analysis of slanted lamellar gratings. AB - The problem of diffraction by slanted lamellar dielectric and metallic gratings in classical mounting is formulated as an eigenvalue eigenvector problem. The numerical solution is obtained by using the moment method with Legendre polynomials as expansion and test functions, which allows us to enforce in an exact manner the boundary conditions which determine the eigensolutions. Our method is successfully validated by comparison with other methods including in the case of highly slanted gratings. PMID- 29036082 TI - Binary classification of Mueller matrix images from an optimization of Poincare coordinates. AB - A new binary classification method for Mueller matrix images is presented which optimizes the polarization state analyzer (PSA) and the polarization state generator (PSG) using a statistical divergence between pixel values in two regions of an image. This optimization generalizes to multiple PSA/PSG pairs so that the classification performance as a function of number of polarimetric measurements can be considered. Optimizing PSA/PSG pairs gives insight into which polarimetric measurements are most useful for the binary classification. For example, in scenes with strong diattenuation, retardance, or depolarization certain PSA/PSG pairs would make two regions in an image look very similar and other pairs would make the regions look very different. The method presented in this paper provides a quantitative method for ensuring the images acquired can be classified optimally. PMID- 29036083 TI - Continuous digital zooming using local self-similarity-based super-resolution for an asymmetric dual camera system. AB - This paper presents a digital zooming method using a super-resolution (SR) algorithm based on the local self-similarity between the wide- and tele-view images acquired by an asymmetric dual camera system. The proposed SR algorithm consists of four steps: (i) registration of an optically zoomed image to the wide view image, (ii) restoration of the central region of the zoomed wide-view image, (iii) restoration of the boundary region of the zoomed wide-view image, and (iv) fusion of the results from steps (ii) and (iii). Since an asymmetric dual camera system acquires different-resolution images on the same scene due to the different optical specifications, the proposed method can restore the low resolution wide-view image using the ideal high-frequency component estimated from the optically zoomed image. Experimental results demonstrate that the proposed method can provide significantly improved high-resolution wide-view images compared to existing single-image-based SR methods. PMID- 29036084 TI - Temporal coherence of a low-power erbium-doped fiber laser with spectrally broadened output. AB - The temporal coherence of spectrally selected output from a CW broadband erbium doped fiber ring laser (EDFRL) based on four wave mixing is characterized using a fiber-optic Mach-Zehnder interferometer. The visibility is found to be comparable to that of a standard narrow-linewidth tunable laser when their spectral widths are matched using an intracavity filter in EDFRL. But its visibility is distinctly higher than two other broadband sources (superluminescent diode and amplified spontaneous source) even when their spectral widths are matched, establishing that the cavity effect aids the coherence in EDFRL by mitigating the phase noise from four wave mixing. PMID- 29036085 TI - Local receptive field constrained stacked sparse autoencoder for classification of hyperspectral images. AB - As a competitive machine learning algorithm, the stacked sparse autoencoder (SSA) has achieved outstanding popularity in exploiting high-level features for classification of hyperspectral images (HSIs). In general, in the SSA architecture, the nodes between adjacent layers are fully connected and need to be iteratively fine-tuned during the pretraining stage; however, the nodes of previous layers further away may be less likely to have a dense correlation to the given node of subsequent layers. Therefore, to reduce the classification error and increase the learning rate, this paper proposes the general framework of locally connected SSA; that is, the biologically inspired local receptive field (LRF) constrained SSA architecture is employed to simultaneously characterize the local correlations of spectral features and extract high-level feature representations of hyperspectral data. In addition, the appropriate receptive field constraint is concurrently updated by measuring the spatial distances from the neighbor nodes to the corresponding node. Finally, the efficient random forest classifier is cascaded to the last hidden layer of the SSA architecture as a benchmark classifier. Experimental results on two real HSI datasets demonstrate that the proposed hierarchical LRF constrained stacked sparse autoencoder and random forest (SSARF) provides encouraging results with respect to other contrastive methods, for instance, the improvements of overall accuracy in a range of 0.72%-10.87% for the Indian Pines dataset and 0.74%-7.90% for the Kennedy Space Center dataset; moreover, it generates lower running time compared with the result provided by similar SSARF based methodology. PMID- 29036086 TI - Deterministic mode representation of random stationary media for scattering problems. AB - Deterministic mode representation (DMR) is introduced for a three-dimensional random medium with a statistically stationary refractive index distribution. The DMR allows for the designing and fine tuning of novel random media by adjusting the weights of individual deterministic modes. To illustrate its usefulness, we have applied the decomposition to the problem of weak light scattering from a Gaussian Schell-model medium. In particular, we have shown how individual deterministic modes of the medium contribute to the scattered far-field spectral density distribution. PMID- 29036087 TI - Fast and accurate three-dimensional point spread function computation for fluorescence microscopy. AB - The point spread function (PSF) plays a fundamental role in fluorescence microscopy. A realistic and accurately calculated PSF model can significantly improve the performance in 3D deconvolution microscopy and also the localization accuracy in single-molecule microscopy. In this work, we propose a fast and accurate approximation of the Gibson-Lanni model, which has been shown to represent the PSF suitably under a variety of imaging conditions. We express the Kirchhoff's integral in this model as a linear combination of rescaled Bessel functions, thus providing an integral-free way for the calculation. The explicit approximation error in terms of parameters is given numerically. Experiments demonstrate that the proposed approach results in a significantly smaller computational time compared with current state-of-the-art techniques to achieve the same accuracy. This approach can also be extended to other microscopy PSF models. PMID- 29036088 TI - Interaction description of light propagation. AB - The interaction between real and virtual point emitters is presented as the propagation principle of light under arbitrary spatial coherence. It is supported on a geometrical interpretation of the two-point correlation and the introduction of the geometrical potential. This principle and the spectrum of classes of point emitters constitute a complete theoretical model that offers a unified phenomenological framework for interference and diffraction not only of light but also of single particles, which is not possible in the conventional formalism based on the wave superposition principle. PMID- 29036089 TI - Freeform aberrations in phase space: an example. AB - We consider how optical propagation and aberrations of freeform systems can be formulated in phase space. As an example system, a freeform prism is analyzed and discussed. Symmetry considerations and their group theory descriptions are given some importance. Numerical aberrations are also highlighted and put into the context of the underlying aberration theory. PMID- 29036090 TI - Optimal configuration of static Mueller imagers for target detection. AB - We investigate the target detection performance of static Mueller imagers that implement a fixed number of illumination and analysis polarization states. Using a maximin approach, we demonstrate that the optimal sets of measurement vectors consist in regular tetrahedra on the Poincare sphere and that, in this case, the obtained target/background contrast has a very simple expression. We then derive a universal lower bound on the contrast ratio between the best channel of a static imager and a fully adaptive one, and in a special case of practical interest, we demonstrate that this ratio is bounded and always larger than 1/9. This is very important in practice since static imagers are much easier to build and operate. Our results show that they constitute a good alternative where ultimate contrast improvement is not necessary. PMID- 29036091 TI - Large amplitude tip/tilt estimation by geometric diversity for multiple-aperture telescopes. AB - A novel method nicknamed ELASTIC is proposed for the alignment of multiple aperture telescopes, in particular segmented telescopes. It only needs the acquisition of two diversity images of an unresolved source, and is based on the computation of a modified, frequency-shifted, cross-spectrum. It provides a polychromatic large-range tip/tilt estimation with the existing hardware and an inexpensive noniterative unsupervised algorithm. Its performance is studied and optimized by means of simulations. They show that with 5000 photoelectrons/subaperture/frame and 1024*1024 pixel images, residues are within the capture range of interferometric phasing algorithms such as phase diversity. The closed-loop alignment of a 6-subaperture mirror provides an experimental demonstration of the effectiveness of the method. PMID- 29036092 TI - Quantitative approach for defining basic color terms and color category best exemplars. AB - A new method is presented that identifies basic color terms (BCTs) from color naming data. A function is defined that measures how well a term is understood by a communicating population. BCTs are then separated from other color terms by a threshold value applied to this function. A new mathematical algorithm is proposed and analyzed for determining the best exemplar associated with each BCT. Using data provided by the World Color Survey, comparisons are made between the paper's methods and those from other studies. These comparisons show that the paper's new definition of "basicness" mostly agrees with the typical definition found in the color categorization literature, which was originally due to Kay and colleagues. The new definition, unlike the typical one, has the advantage of not relying on syntactic or semantic features of languages or color lexicons. This permits the methodology developed to be generalizable and applied to other category domains for which a construct of "basicness" could have an important role. PMID- 29036093 TI - Simulating real-world scenes viewed through ophthalmic lenses. AB - We present a comprehensive procedure to simulate real-world scenes viewed through ophthalmic lenses. Such a method enables us to anticipate the effects on image formation of the following combined undesired optical defects typically found in ophthalmic lenses: blur, distortion, and chromatic aberration. Additionally, it helps in comparing the expected scenes seen with different lens designs. The procedure is based on the following steps: (1) to calculate the distortion and local dioptric matrix associated with a set of different gaze directions; (2) to estimate point spread functions (PSF) associated with these matrices; (3) to compute the joint action of distortion, chromatic aberration, and PSF field on the scenes. We illustrate this procedure with two +5D spherical lenses: a moderately good performance lens and a highly degrading one. The method is suitable to evaluate ophthalmic lenses in a virtual reality framework. PMID- 29036094 TI - On the equivalence between Young's double-slit and crystal double-refraction interference experiments. AB - We show, both analytically and experimentally, that under common experimental conditions the interference pattern produced in a classic Young's double-slit experiment is indistinguishable from that generated by means of a doubly refracting uniaxial crystal whose optic axis makes a skew angle with the light propagation direction. The equivalence between diffraction and crystal optics interference experiments, taken for granted by Arago and Fresnel in their pioneering research on the interference of polarized light beams, is thus rigorously proven. PMID- 29036095 TI - 2D TM scattering problem for finite dielectric objects in a dielectric stratified medium employing Gabor frames in a domain integral equation. AB - We present a method to simulate two-dimensional scattering by dielectric objects embedded in a dielectric layered medium with transverse magnetic polarization through a domain integral equation formulation. A mixed spatial-spectral discretization is employed with both a spatial and a spectral representation along the direction of the layer interfaces. In the spectral domain, a discretization on a path through the complex plane is used on which the Green function is well behaved. To calculate the field-material interaction in the spatial domain, an auxiliary field is employed similar to the Li factorization rules. Numerical results show that this auxiliary-field formulation significantly improves accuracy, compared to a formulation that directly employs the electric field. PMID- 29036096 TI - Far-zone coherence changes of electromagnetic scattered field generated by an anisotropic particulate medium. AB - The far-zone scattered field generated by an anisotropic particulate medium with electromagnetic plane incident waves is discussed. The analytical expressions of the spectral density and spectral degree of coherence of the scattered field are derived, which show that the coherence properties of the scattered field depend on the characteristics of each particle and the distribution of particles. By simulations of two special cases, i.e., anisotropic random particles with isotropic determinate distribution and isotropic determinate particles with anisotropic random distribution, the properties of the medium and the polarization states of the incident wave play roles in the distribution of the spectral degree of coherence of the scattered field. Moreover, the general condition, anisotropic particles with anisotropic distribution, is briefly discussed. By comparing the results generated by different parameters, the coherence changes of scattered field are found in the scattered field. PMID- 29036097 TI - Quantitative phase imaging method based on an analytical nonparaxial partially coherent phase optical transfer function: erratum. AB - A correction is given for Eq. (8) in J. Opt. Soc. Am. A33, 2125 (2016)JOAOD60740 323210.1364/JOSAA.33.002125. PMID- 29036098 TI - Numerical investigation of polarization filtering for direct optical imaging within scattering media. AB - We investigate the ability of polarization filtering to improve direct imaging of absorbing objects which are buried within scattering environments. We extend on previous empirical investigations by exploiting an efficient perturbation-based formalism, which is applicable to arbitrarily arranged sources and detectors with arbitrary polarizations. From this approach, we are able in some cases to find certain non-trivial linear combinations of polarization measurement channels that maximize the object resolution and visibility. PMID- 29036099 TI - Image formation in image scanning microscopy, including the case of two-photon excitation. AB - The effect of combining the image scanning microscopy (ISM) technique with two photon fluorescence microscopy is analyzed. The effective spatial frequency cutoff can be doubled, as compared with conventional two-photon fluorescence microscopy, and the magnitude of the optical transfer function near the cutoff of conventional two-photon microscopy is increased by orders of magnitude. For the two-photon case, it is found that the optimum pixel reassignment factor in ISM is not equal to one half, as is often assumed in single-photon fluoresence image scanning microscopy, because the excitation and detection point spread functions are different. The optimum reassignment factor depends on the noise level, and in general the useful cutoff spatial frequency is about 1.8 times that for conventional two-photon microscopy. The effect of altering the reassignment factor in single-photon fluorescence ISM with a Stokes shift is also investigated. Illumination using pupil filters, such as by a Bessel beam, is considered. Using a ring detector array is found to result in good imaging behavior, exhibiting a sharpening of the point spread function by a factor of 1.7 compared with conventional fluorescence. Image formation in ISM can be considered in a four-dimensional spatial frequency space, giving new insight into the imaging properties. This approach is related to phase space representations such as the Wigner distribution function and the ambiguity function. A noniterative algorithm for image restoration is proposed. PMID- 29036100 TI - Short pulse laser beam beyond paraxial approximation. AB - Nonparaxial perturbative equations are derived from the scalar wave equation by taking into account spatiotemporal couplings. General solutions are obtained in Fourier space and further transformed back in direct space. They depend on parameters that can be used to match various boundary conditions and the perturbative expansion of any nonparaxial exact solutions. This parametrization is used to study the sensitivity of direct electron acceleration off an ultrashort tightly focused laser pulse to nonparaxial corrections of radially polarized electromagnetic fields. PMID- 29036101 TI - Classical ghost-imaging spectral ellipsometer. AB - We introduce a novel approach for the spectral characterization of inhomogeneous thin films and interfaces by means of an imaging ghost ellipsometer operating with classical light of Gaussian statistics. We show that the device output in general provides the ellipsometric information associated with the fractional Fourier transforms of the sample's reflection coefficients, which in special cases reduce to the Fourier transforms or images. The formalisms for both one dimensional and two-dimensional samples are presented. The method is insensitive to instrumentation errors and, unlike in traditional ellipsometry, no source or detector calibration is needed. PMID- 29036102 TI - Scattering of a Gaussian beam from a row of cylinders with rectangular cross section. AB - The transverse magnetic Gaussian beam diffraction from a finite number, equally spaced and rectangular cross section dielectric cylinder row is studied. The infinitely long cylinders' axes are perpendicular to the beam's direction of propagation. The cylinder row, with dielectric constant epsilonc=nc2, is treated as a periodic inhomogeneous film, with period ax and thickness wy, bounded by two semi-infinite homogeneous media. With this restriction, the method is valid only for square or rectangular cross section cylinders. The supercell and the plane wave expansion methods are used to calculate the eigenfrequencies and eigenvectors supported for a one-dimensional photonic crystal. Then, these eigenfrequencies and eigenvectors are used to expand the field in the inhomogeneous film. Numerical results are presented for ax greater than lambda (the incident light wavelength), wx (the cylinder width), and wg (Gaussian beam waist). Two cases are studied. In the first (second) case, the unit cell contains one cylinder (a cylinder row), which simulates the scattering from a single cylinder (an inhomogeneous thin film). The total integrated scattering in transmission (reflection) shows three well-defined minima (maxima), which are due to interference effects. Its positions can be approximately obtained with the formula lambdak=4ncwy/k, with k=3, 4, and 6. The total integrated scattering in transmission decreases linearly as a function of the cylinder number. PMID- 29036103 TI - Modeling the response of mesospheric sodium to pulsed-laser excitation. AB - A simulation modeling excitation of the sodium D2 line by nanosecond time scale pulsed lasers is described. By numerically integrating transition rates in the sodium hyperfine structure, the return flux per sodium atom is predicted as a function of laser power. The simulation should be useful for studies of mesospheric sodium and adaptive optics. Applications include the estimation of sodium column density from lidar return flux, and of laser guide star brightness for different pulsed laser formats. The simulation assumes that the pulse repetition frequency is sufficiently low (smaller than a few kilohertz) that atomic collisions restore local thermodynamic equilibrium between pulses. It is also assumed that the pulse length is short compared to the Larmor precession time scale. The numerical results are well-approximated by a simple analytic model for a three-level atom. The number of emitted photons is found to be primarily dependent on the product of the length of the laser pulse and the energy density. PMID- 29036104 TI - Orthogonality-breaking sensing model based on the instantaneous Stokes vector and the Mueller calculus: erratum. AB - For J. Opt. Soc. Am. A33, 434 (2016)JOAOD60740-323210.1364/JOSAA.33.000434, a corrected version of Eq. (9) is provided owing to typographical errors in the original article. The original full article text and calculations are unchanged. Another typo is corrected in Eq. (A5) of Appendix A. PMID- 29036105 TI - Focus engineering based on analytical formulae for tightly focused polarized beams with arbitrary geometric configurations of linear polarization. AB - Highly confined electromagnetic fields with controllable intensity profiles and polarization orientations are greatly desired in many fields. In this paper, we report on the generation of highly confined fields through tightly focused locally linearly polarized beams. Using the Richards-Wolf vectorial diffraction method, we derive and build integrated analytical formulae for calculating the tightly focused field of polarized beams with arbitrary geometric configurations of linear polarization. Based on the analytical model, the focusing properties of four types of polarized light beams, i.e., linearly, azimuthally, radially, and spatially variant polarized beams, with locally linear states of polarization are investigated numerically and discussed in detail. By manipulating the radial and azimuthal indices and initial phases, we obtain a tunable three-dimensional optical cage, multifoci, optical needles, and channels in the focal volume of a high-numerical-aperture objective lens. These peculiar properties may find applications in fields such as optical trapping and manipulation of nanoparticles and super-resolution microscopy imaging. PMID- 29036106 TI - Holographic imaging through a scattering layer using speckle interferometry. AB - Optical imaging through complex scattering media is one of the major technical challenges with important applications in many research fields, ranging from biomedical imaging to astronomical telescopy to spatially multiplexed optical communications. Various approaches for imaging through a turbid layer have been recently proposed that exploit the advantage of object information encoded in correlations of the random optical fields. Here we propose and experimentally demonstrate an alternative approach for single-shot imaging of objects hidden behind an opaque scattering layer. The proposed technique relies on retrieving the interference fringes projected behind the scattering medium, which leads to complex field reconstruction, from far-field laser speckle interferometry with two-point intensity correlation measurement. We demonstrate that under suitable conditions, it is possible to perform imaging to reconstruct the complex amplitude of objects situated at different depths. PMID- 29036107 TI - Infrared and visible image fusion via saliency analysis and local edge-preserving multi-scale decomposition. AB - To retain the details of a visible image with a discernible target area, we propose a multi-scale decomposition image fusion method based on a local edge preserving (LEP) filter and saliency detection. We first use a LEP filter to decompose the infrared and visible images. Then, a modified saliency detection method is utilized to detect the salient target areas of an infrared image, which determine the base layer's weights of fusion strategy. Finally, each layer is reconstructed to obtain a visually pleasing fused image. Comparison with 11 other state-of-the-art methods reveals the superiority of the proposed method in terms of quality and quantity results. PMID- 29036108 TI - Centralized inverse-Fano distribution for controlling conversion gain measurement accuracy of detector elements. AB - Statistical theory is applied to derive the centralized inverse-Fano distribution as a model for the probability distribution of the photon transfer conversion gain measurement for detector elements. This distribution is confirmed by experiment, thus supporting the theory and enhancing the credibility of the statistical model used. Analysis of the statistical distance between the derived functions and computationally fast approximate forms is carried out to determine the conditions when such approximations are useful. Theoretical results are then applied to develop algorithms for use in live experiments to calculate appropriate sample sizes for measuring the conversion gain given a user-specified acceptable uncertainty. PMID- 29036109 TI - Transparency in stereopsis: parallel encoding of overlapping depth planes. AB - We report that after extensive training, expert adults can accurately report the number, up to six, of transparent overlapping depth planes portrayed by brief (400 ms or 200 ms) random-element stereoscopic displays, and can well discriminate six from seven planes. Naive subjects did poorly above three planes. Displays contained seven rows of 12 randomly located *'s or +'s; jittering the disparities and number in each row to remove spurious cues had little effect on accuracy. Removing the central 3 degrees of the 10 degrees display to eliminate foveal vision hardly reduced the number of reportable planes. Experts could report how many of six planes contained +'s when the remainder contained *'s, and most learned to report up to six planes in reverse contrast (left eye white +'s; right eye black +'s). Long-term training allowed some experts to reach eight depth planes. Results suggest that adult stereoscopic vision can learn to distinguish the outputs of six or more statistically independent, contrast insensitive, narrowly tuned, asymmetric disparity channels in parallel. PMID- 29036110 TI - Differential piston phase variance in non-Kolmogorov atmospheres. AB - We derive a generalized expression for the differential piston phase variance in non-Kolmogorov turbulence. Specifically, our result applies in the case where index of refraction is described by a power-law medium with an exponent between 0 and 1. Kolmogorov assumptions of homogeneity and isotropy are maintained. After some development, our expression is derived using the Mellin-transform techniques and may be generalized to other forms for the three-dimensional index of refraction turbulence power spectrum. This analytical result has two regions of convergence. The separation between these regions is defined by a characteristic time given as the ratio of the mean wind speed and aperture size. By evaluating this expression, we find the differential piston phase variance exhibits a power law behavior roughly proportional to that of the medium. In addition, we find that piston phase variance decreases with increase in aperture size. We also find that the differential piston phase variance is independent of aperture size as the power law approaches unity. PMID- 29036111 TI - Self-focusing of a partially coherent beam with circular coherence. AB - In a recent publication [Opt. Lett.42, 1512 (2017)OPLEDP0146 959210.1364/OL.42.001512], a novel class of partially coherent sources with circular coherence was introduced. In this paper, we examine the propagation behavior of the spectral density and the spectral degree of spatial coherence of a beam generated by such a source in free space and in oceanic turbulent media. It is found that the beam exhibits self-focusing, which is dependent on the initial coherence and the parameters of oceanic turbulence. The self-focusing phenomenon disappears when the initial coherence is high enough or the oceanic turbulence is strong. The area of high coherence appears in the center and along two diagonal lines. With increasing turbulence, the coherence area reduces gradually along one diagonal line and is retained along the other one. A physical interpretation of the self-focusing phenomenon is presented, and potential applications in optical underwater communication and beam shaping are considered. PMID- 29036112 TI - Improving color constancy by discounting the variation of camera spectral sensitivity. AB - It is an ill-posed problem to recover the true scene colors from a color biased image by discounting the effects of scene illuminant and camera spectral sensitivity (CSS) at the same time. Most color constancy (CC) models have been designed to first estimate the illuminant color, which is then removed from the color biased image to obtain an image taken under white light, without the explicit consideration of CSS effect on CC. This paper first studies the CSS effect on illuminant estimation arising in the inter-dataset-based CC (inter-CC), i.e., training a CC model on one dataset and then testing on another dataset captured by a distinct CSS. We show the clear degradation of existing CC models for inter-CC application. Then a simple way is proposed to overcome such degradation by first learning quickly a transform matrix between the two distinct CSSs (CSS-1 and CSS-2). The learned matrix is then used to convert the data (including the illuminant ground truth and the color-biased images) rendered under CSS-1 into CSS-2, and then train and apply the CC model on the color-biased images under CSS-2 without the need of burdensome acquiring of the training set under CSS-2. Extensive experiments on synthetic and real images show that our method can clearly improve the inter-CC performance for traditional CC algorithms. We suggest that, by taking the CSS effect into account, it is more likely to obtain the truly color constant images invariant to the changes of both illuminant and camera sensors. PMID- 29036113 TI - Far-zone behaviors of light waves on scattering from anisotropic quasi homogeneous media with semisoft boundaries. AB - A model of anisotropic quasi-homogeneous media with adjustable boundaries is presented with the help of the three-dimensional multi-Gaussian function. After that, the behaviors of the far-zone field of light waves on scattering from an anisotropic semisoft-boundary quasi-homogeneous medium are illustrated. It is shown that the spectral density of the scattered field is flattened-Gaussian centered, owing to the semisoft boundary of the scatterer, while the spectral degree of coherence is Gaussian-centered, which is independent of the boundary of scatterer. It is also shown that both the spectral density and the spectral degree of coherence are anisotropic because of the anisotropy of the scattering medium. PMID- 29036114 TI - Stochastic calculus analysis of optical time-of-flight range imaging and estimation of radial motion. AB - Time-of-flight range imaging is analyzed using stochastic calculus. Through a series of interpretations and simplifications, the stochastic model leads to two methods for estimating linear radial velocity: maximum likelihood estimation on the transition probability distribution between measurements, and a new method based on analyzing the measured correlation waveform and its first derivative. The methods are tested in a simulated motion experiment from (-40)-(+40) m/s, with data from a camera imaging an object on a translation stage. In tests maximum likelihood is slow and unreliable, but when it works it estimates the linear velocity with standard deviation of 1 m/s or better. In comparison the new method is fast and reliable but works in a reduced velocity range of (-20)-(+20) m/s with standard deviation ranging from 3.5 m/s to 10 m/s. PMID- 29036115 TI - Wide bandwidth, millimeter-resolution inverse synthetic aperture radar imaging. AB - The combination of wide bandwidth W-band inverse synthetic aperture radar imagery and high-fidelity numerical simulations has been used to identify distinguishing signatures from simple metallic and dielectric targets. Targets are located with millimeter-scale accuracy using super-resolution techniques. Radon transform reconstructions of the returns from rotated targets approached the image quality of the complete data set in a fraction of the time by sampling as few as 10 angles. The limitations of shooting-and-bouncing ray simulations at high frequencies are illustrated through a critical comparison of their predictions with the measured data and the method of moments simulations, indicating the importance of accurately capturing the obfuscating role played by multipath interference in complex targets. PMID- 29036116 TI - Fast computer hologram generation by flexible-ratio adaptive point-spread spherical wave synthesis. AB - We propose a flexible-ratio adaptive point-spread spherical wave synthesis method for fast computer-generated hologram calculation. The conventional adaptive point spread algorithm uses a fixed ratio between the major and minor axes of the point source, whereas the proposed method uses flexible-ratio sources, i.e., ellipses, for more effective calculation. Numerical simulation was conducted to validate the proposed method. The results show that the proposed method has the potential to achieve faster calculation, compared to the calculation in conventional methods, without significant image degradation. PMID- 29036117 TI - Illuminant estimation in multispectral imaging. AB - With the advancement in sensor technology, the use of multispectral imaging is gaining wide popularity for computer vision applications. Multispectral imaging is used to achieve better discrimination between the radiance spectra, as compared to the color images. However, it is still sensitive to illumination changes. This study evaluates the potential evolution of illuminant estimation models from color to multispectral imaging. We first present a state of the art on computational color constancy and then extend a set of algorithms to use them in multispectral imaging. We investigate the influence of camera spectral sensitivities and the number of channels. Experiments are performed on simulations over hyperspectral data. The outcomes indicate that extension of computational color constancy algorithms from color to spectral gives promising results and may have the potential to lead towards efficient and stable representation across illuminants. However, this is highly dependent on spectral sensitivities and noise. We believe that the development of illuminant invariant multispectral imaging systems will be a key enabler for further use of this technology. PMID- 29036119 TI - Aberration analysis of AOTF-based spectral imaging systems. AB - Image aberrations caused by acousto-optic (AO) anisotropic diffraction in uniaxial crystals are discussed. For their analysis, we propose a simplified ray tracing model of an AO crystal cell (AOC). With this approach, one can assign any configuration of AO interaction, any material and geometry of the crystal, and then estimate all conventional ray aberrations, such as spherical, coma, astigmatism, distortion, etc. The optimization procedure is demonstrated by the aberration analysis of three principal spectral imaging schemes based on AO tunable filters (AOTFs). The approach developed promises performance improvement of AOTF-based systems for high-quality spectral imaging and image processing. PMID- 29036118 TI - Color opponency: tutorial. AB - In dialogue, two color scientists introduce the topic of color opponency, as seen from the viewpoints of color appearance (psychophysics) and measurement of nerve cell responses (physiology). Points of difference as well as points of convergence between these viewpoints are explained. Key experiments from the psychophysical and physiological literature are covered in detail to help readers from these two broad fields understand each other's work. PMID- 29036120 TI - Polarization-dependent effects of an Airy beam due to the spin-orbit coupling. AB - We investigate the polarization-dependent effects when a circularly polarized Airy beam propagates in an inhomogeneous medium. It shows that there are some interesting polarization-dependent phenomena induced by the spin-orbit coupling: the circularly polarized Airy beam will follow a polarization-dependent trajectory in an inhomogeneous medium, and there are the polarization-dependent self-acceleration of the Airy beam in the linear-index inhomogeneous medium and the polarization-dependent rotation of the Airy beam in the quadratic-index inhomogeneous medium. These polarization-dependent phenomena are different from the manifestation of the "traditional" spin Hall effect of a light beam, which just displays the polarization-dependent transverse deflection of the beam. PMID- 29036121 TI - Three-dimensional electromagnetic imaging of dielectric targets by means of the multiscaling inexact-Newton method. AB - A novel approach for three-dimensional electromagnetic imaging is presented. This technique is a combination of an iterative multiscaling approach with an inexact Newton method. The multiscaling procedure allows one to iteratively focus the region of interest on the detected target, whereas the inexact-Newton method provides an efficient regularized solution of the nonlinear electromagnetic inverse scattering problem for each scaling step. The proposed method is validated against numerical data with different configuration settings. A preliminary experimental validation is also reported. PMID- 29036122 TI - Wavefront spacing and Gouy phase in strongly focused fields: the role of polarization. AB - The wavefront spacings and the Gouy phases are investigated in the strongly focused fields with four differently polarized incident waves. It is shown that these four incident polarizations will lead to nine axial field components, which are found actually to only have five kinds of wavefront spacings and Gouy phases. The four analytical and one numerical expressions are derived for these five kinds of wavefront spacings in the immediate neighborhood of the focus. Our results show that the polarization state, the semiaperture angle, and beam size influence the wavefront spacings and the Gouy phases in different ways. The difference between two very near wavefront spacings can be bigger than a half wavelength. It is also found that the axial field components with the polarization states orthogonal to that of the incident wave always have larger wavefront spacings. PMID- 29036123 TI - Computational study of optical force between two nanodistant plasmonic submicrowires. AB - In this paper, the optical force between two circular plasmonic wires of submicrometer diameter (0.3 MUm) with nanometer surface-to-surface distances (3 30 nm) interacting with radiation of a complex point source (lambda~0.2 MUm) is numerically studied. Calculations (which are based on the Muller integral equations and the Maxwell stress tensor) show that an attractive optical force with a number of distinct peaks is created in distances 3-10 nm. However, for plasmonic-dielectric and plasmonic-reflector double-wires, the optical force has no such peaks. Comparisons reveal that the peaks are originated from the excitation of coupled surface plasmon polaritons in the gap region between the plasmonic wires. PMID- 29036124 TI - Generalization of differential ray tracing by automatic differentiation of computational graphs. AB - Optical design relies on ray tracing to evaluate and optimize the performance of optical systems. Differential ray tracing, in which the ray properties are calculated together with their derivatives, has been shown to be of interest to improve the accuracy and speed of common optical design tasks. We present in this paper an algorithm capable of performing differential ray tracing in the general case. This algorithm is not constrained by a specific optical system geometry such as rotational symmetry or restricted to a set of surface definitions (e.g., conics, polynomial aspheres). PMID- 29036125 TI - Automatic classification of atherosclerotic tissue in intravascular optical coherence tomography images. AB - Intravascular optical coherence tomography (IVOCT) has been successfully utilized for in vivo diagnostics of coronary plaques. However, classification of atherosclerotic tissues is mainly performed manually by experienced experts, which is time-consuming and subjective. To overcome these limitations, an automatic method of segmentation and classification of IVOCT images is developed in this paper. The method is capable of detecting the plaque contour between the fibrous tissues and other components. Subsequently, the method classifies the tissues based on their texture features described by Fourier transform and discrete wavelet transform. The experimental results of 103 images show that an overall classification accuracy of over 80% in the indicator of depth and span angle is achieved in comparison to manual results. The validation suggests that this method is objective, accurate, and automatic without any manual intervention. The proposed method is able to demonstrate the artery wall morphology successfully, which is valuable for the research of atherosclerotic disease. PMID- 29036126 TI - General refraction problems with phase discontinuities on nonflat metasurfaces. AB - This paper provides a mathematical approach to study metasurfaces in nonflat geometries. Analytical conditions between the curvature of the surface and the set of refracted directions are introduced to guarantee the existence of phase discontinuities. The approach contains both the near and far field cases. A starting point is the formulation of a vector Snell's law in the presence of abrupt discontinuities on the interfaces. PMID- 29036127 TI - High-speed all-optical DNA local sequence alignment based on a three-dimensional artificial neural network. AB - This paper presents an optical processing approach for exploring a large number of genome sequences. Specifically, we propose an optical correlator for global alignment and an extended moire matching technique for local analysis of spatially coded DNA, whose output is fed to a novel three-dimensional artificial neural network for local DNA alignment. All-optical implementation of the proposed 3D artificial neural network is developed and its accuracy is verified in Zemax. Thanks to its parallel processing capability, the proposed structure performs local alignment of 4 million sequences of 150 base pairs in a few seconds, which is much faster than its electrical counterparts, such as the basic local alignment search tool. PMID- 29036128 TI - Modeling turbulence in underwater wireless optical communications based on Monte Carlo simulation. AB - Turbulence affects the performance of underwater wireless optical communications (UWOC). Although multiple scattering and absorption have been previously investigated by means of physical simulation models, still a physical simulation model is needed for UWOC with turbulence. In this paper, we propose a Monte Carlo simulation model for UWOC in turbulent oceanic clear water, which is far less computationally intensive than approaches based on computational fluid dynamics. The model is based on the variation of refractive index in a horizontal link. Results show that the proposed simulation model correctly reproduces lognormal probability density function of the received intensity for weak and moderate turbulence regimes. Results presented match well with experimental data reported for weak turbulence. Furthermore, scintillation index and turbulence-induced power loss versus link span are exhibited for different refractive index variations. PMID- 29036129 TI - Self-bending scalar and vector bottle sheets. AB - This work demonstrates the generation of auto-bending cylindrical/tubular Bessel Gauss bottle beams in homogeneous two-dimensional (2D) space. The corresponding wave fields flow through a two-dimensional curved trajectory leaving a singularity hollow central region, exhibiting the characteristic of circumventing obstacles. Scalar and vector fields are derived based on the angular spectrum decomposition method, the Helmholtz equation, the Lorenz gauge condition, and Maxwell's equations. The profile and area of the 2D bottle beams, together with the location of the autofocusing spots, are controlled by the intrinsic parameters of the illuminating waves and polarizations of the vector potential forming the incident fields. The demonstrated auto-bending cylindrical bottle beam solutions may find potential applications in acoustical and optical cloaking, auto-bending beam tweezers, imaging around steep corners, therapeutic investigations with unconventional autofocusing beams, acoustical and light sheets (i.e., slice of beams in 2D), and other related particle manipulation, isolation, and sorting devices, to name a few examples. PMID- 29036130 TI - Electromagnetic diffraction theory of refractive axicon lenses. AB - We study the field that is produced by a paraxial refractive axicon lens. The results from geometrical optics, scalar wave optics, and electromagnetic diffraction theory are compared. In particular, the axial intensity, the on-axis effective wavelength, the transverse intensity, and the far-zone field are examined. A rigorous electromagnetic diffraction analysis shows that the state of polarization of the incident beam strongly affects the transverse intensity distribution, but not the intensity distribution in the far zone. PMID- 29036131 TI - Response of quadrant detectors to structured beams via convolution integrals. AB - We propose a new expression for the response of a quadrant detector using convolution integrals. This expression, exploiting the properties of the convolution, is easier to evaluate by hand. Computationally, it is also practicable to use since a large number of computer programs can evaluate convolutions right away. We use the new expression to obtain an analytical form of the response of a quadrant detector for a Gaussian beam and for Hermite Gaussian beams in general. We compare this analytic expression for the response for the Gaussian beam with the approximations from previous studies and with the response obtained through simulations. From the response, we also obtained an analytical form for the sensitivity of the quadrant detector to a Gaussian beam. Lastly, we demonstrate the computational ease of using our new expression for the response by calculating the sensitivity of the quadrant detector to the Bessel beam. PMID- 29036132 TI - Description of deep saturated excitation multiphoton microscopy for super resolution imaging. AB - Here we recount the standard two-level model that describes saturated excitation (SAX) in multiphoton microscopy (MPM), a new technique for super-resolution fluorescence microscopy in scattering tissue, which requires no special chemistry and only simple modifications to a commercial MPM microscope. We use the model to study conditions required for improvements in MPM SAX resolution and experimental implementation strategies. Simulation results find zeros, or nodes, in the frequency response, which generate highly irregular point-spread functions (PSFs), such as rings and ripples, that contain spatial frequency content >3* larger than allowed by diffraction. These PSFs are a direct result of zeros in the frequency response of saturated fluorophores under specific excitation conditions. The impact on image quality is discussed using simulations of targets imaged with SAX PSFs. Further, we explore engineering sets of irregular PSFs by varying the excitation power and reconstructing super-resolution images from the set of captured images. PMID- 29036133 TI - Use of spectral sensitivity variability in reflectance recovery from colorimetric information. AB - There have been numerous methods for accessing the reflectance spectra; some methods enable one to obtain the spectra directly, such as using a spectrophotometer, hyper-spectral camera, and so forth. Even though the accuracy by which the spectra are obtained can be very high, the high price of these methods could pose an obstacle. On the other hand, there has been an interest in estimation of the spectral reflectance from colorimetric information that is more easily attainable; the accuracy in this case might not be as high but these methods are the most cost efficient. It is aimed, in this paper, to amalgamate the low price and high accuracy of the preceding approaches through relating spectral estimation to spectral sensitivity variability. The work is split into two major parts. The first part of the paper describes spectral sensitivity variability of humans and cameras in a theoretical manner and how it can be used in spectral recovery. In the second part, an attempt is made to extend the theory to real situations. At the end, it is shown how increasing the number of disparate colorimetric data of a specific object using the proposed methods aids in estimating spectral reflectance more accurately in a manner comparable to multi-spectral cameras. PMID- 29036134 TI - Refractive collimation beam shaper design and sensitivity analysis using a free form profile construction method. AB - A refractive laser beam shaper comprising two free-form profiles is presented. The profiles are designed using a free-form profile construction method such that each incident ray is directed in a certain user-specified direction or to a particular point on the target surface so as to achieve the required illumination distribution of the output beam. The validity of the proposed design method is demonstrated by means of ZEMAX simulations. The method is mathematically straightforward and easily implemented in computer code. It thus provides a convenient tool for the design and sensitivity analysis of laser beam shapers and similar optical components. PMID- 29036135 TI - Negative optical radiation force and spin torques on subwavelength prolate and oblate spheroids in fractional Bessel-Gauss pincers light-sheets. AB - Fractional Bessel-Gauss light-sheets [J. Opt.19, 055602 (2017)JOOPDB0150 536X10.1088/2040-8986/aa649a], which correspond to finite optical "slices" in 2D and possess asymmetric slit openings and bending characteristics, are examined from the standpoint of optical radiation force and spin torque theories for a subwavelength spheroid with arbitrary orientation in space. The vector angular spectrum decomposition method in addition to the Lorenz gauge condition and Maxwell's equations are used to determine the Cartesian components of the incident radiated electric field of the Bessel-Gauss light-sheets. In the framework of the dipole approximation, the numerical results for the Cartesian components of the optical radiation force and spin torque vectors show that negative forces (oriented in the opposite direction of wave motion) and spin torques arise depending on the beam parameters, the orientation of the subwavelength spheroid in 3D space, and its aspect ratio (i.e., prolate versus oblate). The spin torque sign reversal reveals that counter-clockwise or clockwise rotations around the center of mass of the spheroid can occur. The results find important applications in the application of auto-focusing light sheets in particle manipulation, rotation, and optical sorting devices. PMID- 29036136 TI - Correlation-based evaluation of visual performance to reduce the statistical error of visual acuity. AB - Ophthalmologists evaluate visual acuity tests by the number of correctly recognized optotypes (usually letters) in the different lines of an eye chart. This probability-based scoring results in significant statistical error that can only be decreased by the time-consuming analysis of a larger number of optotypes. In this paper, we present a new, more precise correlation-based scoring method that takes the degree of misidentification into consideration too, rather than the mere fact of it. According to our experimental results, this new method decreases the uncertainty error by 28% if using the same number of optotypes at a given letter size or requires half the optotype number to produce the same error as that of probability-based scoring. PMID- 29036137 TI - Design of a broadband hemispherical wave collimator lens using the ray inserting method. AB - This paper presents a novel inhomogeneous hemispherical dielectric lens. The proposed lens is designed based on the ray inserting method (RIM). Applying this approach, a uniform distribution of the rays' end points over the lens plane aperture is achieved while lens matching to the environment refractive index is perfectly fulfilled. We can change the antenna features such as sidelobe level and gain by controlling the end point of each ray propagated through the hemispherical lens. The refractive index of the designed hemispherical inhomogeneous lens is derived and it is validated using COMSOL Multiphysics. The proposed lens is realized using material drilling and multilayer techniques. Analysis of the realized lens is performed using CST-Microwave Studio. The structure has been fabricated. The results of a simulation and experiment indicate good performances of realized planar lens in a wide frequency bandwidth. Comparing with other hemispherical lenses like classical half Maxwell fish-eye, the improvements in the gain, sidelobe levels, and input matching are achieved by using the RIM. PMID- 29036138 TI - Double distortion correction method in a catadioptric vision system with a conic mirror. AB - Because of the low calibration precision caused by reflector distortion in catadioptric vision systems with conic mirrors, we proposed a double distortion correction model based on the panoramic image rectification. The lens distortion and the reflector distortion are analyzed independently in the mathematic model of the double distortion correction. Moreover, the modified model in this paper added the trigonometric functions into the polynomial model to solve the combined distortion. Additionally, extensive experiments, both simulative and real data, have been carried out and show that the proposed model achieves comparable measurement accuracy in contrast with the traditional distortion method. PMID- 29036139 TI - Phase-error estimation and image reconstruction from digital-holography data using a Bayesian framework. AB - The estimation of phase errors from digital-holography data is critical for applications such as imaging or wavefront sensing. Conventional techniques require multiple i.i.d. data and perform poorly in the presence of high noise or large phase errors. In this paper, we propose a method to estimate isoplanatic phase errors from a single data realization. We develop a model-based iterative reconstruction algorithm that computes the maximum a posteriori estimate of the phase and the speckle-free object reflectance. Using simulated data, we show that the algorithm is robust against high noise and strong phase errors. PMID- 29036140 TI - Wavefronts, caustic, and intensity of a plane wave refracted by an arbitrary surface: the axicon and the plano spherical lenses. AB - The aim of the present work is to obtain an integral representation of the field associated with the refraction of a plane wave by an arbitrary surface. To this end, in the first part we consider two optical media with refraction indexes n1 and n2 separated by an arbitrary interface, and we show that the optical path length, phi, associated with the evolution of the plane wave is a complete integral of the eikonal equation in the optical medium with refraction index n2. Then by using the k function procedure introduced by Stavroudis, we define a new complete integral, S, of the eikonal equation. We remark that both complete integrals in general do not provide the same information; however, they give the geometrical wavefronts, light rays, and the caustic associated with the refraction of the plane wave. In the second part, using the Fresnel-Kirchhoff diffraction formula and the complete integral, S, we obtain an integral representation for the field associated only with the refraction phenomena, the geometric field approximation, in terms of secondary plane waves and the k function introduced by Stavroudis in solving the problem from the geometrical optics point of view. We use the general results to compute: the wavefronts, light rays, caustic, and the intensity associated with the refraction of a plane wave by an axicon and plano-spherical lenses. PMID- 29036141 TI - Gloss evaluation from soft and hard metrologies. AB - Recent advances in bidirectional reflectance distribution function (BRDF) acquisitions have provided a novel approach for appearance measurement and analysis. In particular, since gloss appearance is dependent on the directional reflective properties of surfaces, it is reasonable to leverage the BRDF for gloss evaluation. In this paper, we investigate gloss appearance from both soft metrology and hard metrology. A psychophysical experiment was conducted for the gloss assessment of 47 neutral-color samples. In the evaluation of gloss perception from gloss meter measurements, we report several ambiguous correspondences in the medium gloss range. In order to analyze and explain this phenomenon, the BRDF was acquired and examined using a commercial BRDF measuring device. With an improved correlation-to-visual perception, we propose a two dimensional gloss model by combining a parameter, the standard deviation of the specular lobe, from Ward's BRDF model with measured gloss values. PMID- 29036142 TI - Standardized target-specific detectivity metric for computational imaging systems. AB - Multifunctional cameras capable of performing a wide variety of nearly simultaneous imaging tasks are expected to play a major role in the near future. Computational imaging (CI) systems will serve as one of the main enabling technologies for multifunctional cameras, especially due to the abundance of low cost, high-speed computational processing available today. An important aspect of these systems is to be able to quantify their performance with respect to specific imaging tasks. However, the non-traditional design of CI systems, both available and proposed, presents a considerable challenge to modeling, comparing, specifying, and measuring their performance. To solve this problem, this paper presents a standardized detection signal-to-noise ratio, referred to as a detectivity metric, along with a general CI system framework. This metric has the flexibility to handle various types of CI systems and specific targets while minimizing the complexity and assumptions needed. The detectivity metric is designed to assess the performance of a CI system searching for a specific known target or signal of interest. An analytical version of the detectivity metric is also presented for a compressive sensing CI system. Special considerations for standardization are also discussed. PMID- 29036143 TI - Complete confined bases for beam propagation in Cartesian coordinates. AB - Complete bases that are useful for beam propagation problems and present the distinct property of being spatially confined at the initial plane are proposed. These bases are constructed in terms of polynomials of Gaussians, in contrast with standard alternatives, such as the Hermite-Gaussian basis, that are given by a Gaussian times a polynomial. The property of spatial confinement implies that, for all basis elements, the spatial extent at the initial plane is roughly the same. This property leads to an optimal scaling parameter that is independent of truncation order for the fitting of a confined initial field. Given their form as combinations of Gaussians, the paraxial propagation of these basis elements can be modeled analytically. PMID- 29036144 TI - Second-order statistics of a radially polarized partially coherent twisted beam in a uniaxial crystal. AB - The Wigner function (WDF) has been used to study the second-order moments for a radially polarized partially coherent twisted (RPPCT) beam (i.e., a RPPC beam with a twist phase) propagating in a uniaxial crystal. With the help of the extended Huygens-Fresnel integral formula and definition of the WDF, the analytical formulas for propagation factor (M2-factor), effective radius of curvature (ERC), and Rayleigh range of a RPPCT beam propagating in a uniaxial crystal have been derived. Our numerical results show that the M2-factor of a RPPCT beam with larger absolute value of the twist factor or lower coherence is less affected by anisotropic diffraction in a uniaxial crystal. The dependence of the ERC and Rayleigh range of a RPPCT beam propagating in a uniaxial crystal on the parameter e along the x direction is much different from that along the y direction due to anisotropic diffraction. We can judge how much a RPPCT beam carries the twist factor by measuring the deviation percentage of the M2-factor of a RPPCT beam propagating in a uniaxial crystal and even can modulate the properties of a RPPCT beam by varying the beam parameters, which will be useful in some applications where a RPPCT beam is required. PMID- 29036145 TI - Computational integral field spectroscopy with diverse imaging. AB - Integral field spectroscopy (IFS) is a well-established method for measuring spectral intensity data of the form s(x,y,lambda), where x, y are spatial coordinates and lambda is the wavelength. In most flavors of IFS, there is a trade-off between sampling (x,y) and the measured wavelength band Deltalambda. Here we present the first, to our knowledge, attempt to overcome this trade-off by use of computational imaging and measurement diversity. We implement diversity by including a grating in our design, which allows rotation of the dispersed spectra between measurements. The raw intensity data captured from the rotated grating positions are then processed by an inverse algorithm that utilizes sparsity in the data. We present simulated results from spatial-spectral data in the experimental dataset. We used non-overlapping portions of the dataset to train our sparsity priors in the form of the dictionary, and to test the reconstruction quality. We found that, depending on the level of noise in the measurement, diversity up to a maximum number of measurements is beneficial in terms of reducing error, and yields diminishing returns if even more measurements are taken. PMID- 29036146 TI - Effects of a modulated vortex structure on the diffraction dynamics of ring Airy Gaussian beams. AB - The evolution of the ring Airy Gaussian beams with a modulated vortex in free space is numerically investigated. Compared with the unmodulated vortex, the unique property is that the beam spots first break up, and then gather. The evolution of the beams is influenced by the parameters of the vortex modulation, and the splitting phenomenon gets enhanced with multiple rings becoming light spots if the modulation depth increases. The symmetric branch pattern of the beam spots gets changed when the number of phase folds increases, and the initial modulation phase only impacts the angle of the beam spots. Moreover, a large distribution factor correlates to a hollow Gaussian vortex shape and weakens the splitting and gathering trend. By changing the initial parameters of the vortex modulation and the distribution factor, the peak intensity is greatly affected. In addition, the energy flow and the angular momentum are elucidated with the beam evolution features being confirmed. PMID- 29036147 TI - Basic properties and classification of Mueller matrices derived from their statistical definition. AB - Starting from the statistical definition of the Mueller matrix, we derive the relationships between basic properties, such as the number of contact points of the characteristic ellipsoid with the Poincare sphere and the rank of the covariance matrix. This approach enables the comprehensive classification of any experimental depolarizing Mueller matrix into one of six possible classes, thus making possible phenomenological interpretation in terms of a specific fluctuating Jones generator or of a finite sum of nondepolarizing Mueller matrices. PMID- 29036148 TI - Quasi-monochromatic modes of quasi-stationary, pulsed scalar optical fields. AB - We investigate the temporal coherence of random, pulsed, quasi-stationary scalar light fields and introduce a new type of expansion for the mutual coherence function in terms of fully coherent frequency-shifted quasi-monochromatic modes of identical shape. The mode representation is valid provided the pulse length is shorter and the coherence time is much shorter than the width of the time window in which the field is considered. The construction of the expansion is particularly straightforward since information is required only on the average spectrum and the average temporal intensity. The method enables us to assess the coherence properties of quasi-stationary light by analyzing the behavior of deterministic quasi-monochromatic fields. The frequency-domain counterpart of the representation is also given. The method is illustrated by application to a pulsed free-electron laser source. PMID- 29036149 TI - Bandwidth correction in the spectral measurement of light-emitting diodes. AB - Light-emitting diodes (LEDs) are widely employed in industrial applications and scientific research. However, spectral distortions will occur due to the broadening effects of the spectrometer when an LED spectrum is obtained with a spectrometer. In this paper, a novel approach is put forward to correct bandwidth for an LED spectrum based on a Levenberg-Marquardt algorithm and He-Zheng model. We compare estimation errors of different LED spectra by using the proposed method along with the Richardson-Lucy method and differential operator approach. The experimental results show that the effect of the proposed approach is better than that of the other two methods. PMID- 29036150 TI - Simple approach to the generalized Minkwitz theorem. AB - The Minkwitz theorem plays an important role in the design of progressive addition lenses. Recently, this theorem has been generalized by Esser et al. [J. Opt. Soc. Am. A34, 441 (2017)10.1364/JOSAA.34.000441JOAOD60740-3232] to non umbilic lines under the assumption of a symmetric surface. We present a simplified derivation and generalize their findings to arbitrary but sufficiently smooth surfaces. PMID- 29036151 TI - Automatic identification of fungi in microscopic leucorrhea images. AB - Identifying fungi in microscopic leucorrhea images provides important information for evaluating gynecological diseases. Subjective judgment and fatigue can greatly affect recognition accuracy. This paper proposes an automatic identification system to detect fungi in leucorrhea images that incorporates a convolutional neural network, the histogram of oriented gradients algorithm, and a binary support vector machine. In experiments, the detection rate of the positive samples was as high as 99.8%. The experimental results demonstrate the effectiveness of the proposed method and its potential as a primary software component of a completely automated system. PMID- 29036152 TI - Single freeform surface design for prescribed input wavefront and target irradiance. AB - In beam shaping applications, the minimization of the number of necessary optical elements for the beam shaping process can benefit the compactness of the optical system and reduce its cost. The single freeform surface design for input wavefronts, which are neither planar nor spherical, is therefore of interest. In this work, the design of single freeform surfaces for a given zero-etendue source and complex target irradiances is investigated. Hence, not only collimated input beams or point sources are assumed. Instead, a predefined input ray direction vector field and irradiance distribution on a source plane, which has to be redistributed by a single freeform surface to give the predefined target irradiance, is considered. To solve this design problem, a partial differential equation (PDE) or PDE system, respectively, for the unknown surface and its corresponding ray mapping is derived from energy conservation and the ray-tracing equations. In contrast to former PDE formulations of the single freeform design problem, the derived PDE of Monge-Ampere type is formulated for general zero etendue sources in Cartesian coordinates. The PDE system is discretized with finite differences, and the resulting nonlinear equation system is solved by a root-finding algorithm. The basis of the efficient solution of the PDE system builds the introduction of an initial iterate construction approach for a given input direction vector field, which uses optimal mass transport with a quadratic cost function. After a detailed description of the numerical algorithm, the efficiency of the design method is demonstrated by applying it to several design examples. This includes the redistribution of a collimated input beam beyond the paraxial approximation, the shaping of point source radiation, and the shaping of an astigmatic input wavefront into a complex target irradiance distribution. PMID- 29036153 TI - Fixed-pattern noise correction method based on improved moment matching for a TDI CMOS image sensor. AB - In this paper, an improved moment matching method based on a spatial correlation filter (SCF) and bilateral filter (BF) is proposed to correct the fixed-pattern noise (FPN) of a time-delay-integration CMOS image sensor (TDI-CIS). First, the values of row FPN (RFPN) and column FPN (CFPN) are estimated and added to the original image through SCF and BF, respectively. Then the filtered image will be processed by an improved moment matching method with a moving window. Experimental results based on a 128-stage TDI-CIS show that, after correcting the FPN in the image captured under uniform illumination, the standard deviation of row mean vector (SDRMV) decreases from 5.6761 LSB to 0.1948 LSB, while the standard deviation of the column mean vector (SDCMV) decreases from 15.2005 LSB to 13.1949LSB. In addition, for different images captured by different TDI-CISs, the average decrease of SDRMV and SDCMV is 5.4922/2.0357 LSB, respectively. Comparative experimental results indicate that the proposed method can effectively correct the FPNs of different TDI-CISs while maintaining image details without any auxiliary equipment. PMID- 29036154 TI - Perceptually optimized image rendering. AB - We develop a framework for rendering photographic images by directly optimizing their perceptual similarity to the original visual scene. Specifically, over the set of all images that can be rendered on a given display, we minimize the normalized Laplacian pyramid distance (NLPD), a measure of perceptual dissimilarity that is derived from a simple model of the early stages of the human visual system. When rendering images acquired with a higher dynamic range than that of the display, we find that the optimization boosts the contrast of low-contrast features without introducing significant artifacts, yielding results of comparable visual quality to current state-of-the-art methods, but without manual intervention or parameter adjustment. We also demonstrate the effectiveness of the framework for a variety of other display constraints, including limitations on minimum luminance (black point), mean luminance (as a proxy for energy consumption), and quantized luminance levels (halftoning). We show that the method may generally be used to enhance details and contrast, and, in particular, can be used on images degraded by optical scattering (e.g., fog). Finally, we demonstrate the necessity of each of the NLPD components-an initial power function, a multiscale transform, and local contrast gain control-in achieving these results and we show that NLPD is competitive with the current state-of-the-art image quality metrics. PMID- 29036155 TI - Condition for far-zone spectral isotropy of light radiated from a quasi homogeneous source scattering on a quasi-homogeneous random medium. AB - The far-zone spectral isotropy of light radiated from a secondary planar quasi homogeneous (QH) source scattering on a QH medium has been discussed. Without assuming the specified function of incident light, a sufficient condition for the far-zone spectral isotropy has been expressed as a new scaling law, which is analogous with the scaling law for weak scattering in previous works. Special examples are discussed to validate the obtained scaling law. PMID- 29036156 TI - Multifocus autofocusing Airy beam. AB - We propose a multifocus autofocusing Airy beam (MAAB) by modifying the frequency spectrum of a symmetric Airy beam (SAB) with a Gaussian band elimination filter. Unlike the original SAB, there are four off-axis foci at the autofocusing plane of the MAAB. The MAAB has a better abruptly autofocusing property than the original SAB. In addition, with the increase of the normalized intensity at the first peak, the focal position (second peak) of the MAAB remains almost the same, whereas the position of the first peak shifts along the propagation direction gradually. These unique characteristics of MAAB have been demonstrated by experiment and indicate potential applications in various fields. PMID- 29036157 TI - Nonlinear spline wavefront reconstruction from Shack-Hartmann intensity measurements through small aberration approximations. AB - We propose an extension of the Spline based ABerration Reconstruction (SABRE) method to Shack-Hartmann (SH) intensity measurements, through small aberration approximations of the focal spot models. The original SABRE for SH slope measurements is restricted to the use of linear spline polynomials, due to the limited amount of data, and the resolution of its reconstruction is determined by the number of lenslets. In this work, a fast algorithm is presented that directly processes the pixel information of the focal spots, allowing the employment of nonlinear polynomials for high accuracy reconstruction. In order to guarantee the validity of the small aberration approximations, the method is applied in two correction steps, with a first compensation of large, low-order aberrations through the gradient-based linear SABRE followed by compensation of the remaining high-order aberrations with the intensity-based nonlinear SABRE. PMID- 29036158 TI - Parabasal formulas and their applications. AB - Parabasal theory is a technique in geometrical optics, which describes the behavior of light rays located near some defined base ray rather than the optical axis. In this work, we are concerned with parabasal rays, which lie in a sufficiently small neighborhood of a chief ray and develop some formulas for the parabasal quantities of the chief ray. The parabasal quantities of a chief ray are shown to be intimately related to the coefficients of the first-order differential equations of the chief ray. Using the relations, we derive parabasal formulas containing parabasal refractive indices and parabasal powers from the first-order differential equations. These parabasal formulas turn out to be decoupled differential equations of the first-order differential equations so that highly coupled differential equations for a chief ray can be solved systematically. In addition, we apply parabasal formulas to the paraxial region by taking the limits of the formulas. These limits give necessary conditions expressed in terms of Gaussian brackets for various initial design requirements of optical lens systems. Those necessary conditions do not seem to be derivable by using only paraxial theory without the parabasal approaches developed in this work. PMID- 29036159 TI - Data-driven linearizing approach in inverse scattering. AB - Direct or forward wave scattering admits three classical regimes in which the map from scatterer properties or scattering potential to the data is linear, namely, the Born, Rytov, and physical optics approximations. In this paper we derive a new decomposition of the forward scattering map which reveals a previously unknown approximate bilinear forward scattering relation. The latter is data driven, i.e., it involves exact scattering data, and has the useful property that the dependence on the data and the potential is bilinear. This fundamental result naturally leads to a new linear inverse scattering approach that generalizes and is more broadly applicable than the classical Born-approximation-based imaging. The developed scattering and inverse scattering theory are presented in both plane wave and multipole expansion representations, and the possibility of exploiting support information is also formally addressed in the multipole domain. The paper includes computer simulations illustrating the derived theory and algorithms. PMID- 29036160 TI - On the van Cittert-Zernike theorem for intensity correlations and its applications. AB - A reciprocal relationship between the autocovariance of the light intensity in the source plane and in the far-field detector plane is presented in a form analogous to the classical van Cittert-Zernike theorem, but involving intensity correlation functions. A "classical" version of the reciprocity relationship is considered first, based on the assumption of circular Gaussian statistics of the complex amplitudes in the source plane. The result is consistent with the theory of Hanbury Brown-Twiss interferometry, but it is shown to be also applicable to estimation of the source size or the spatial resolution of the detector from the noise power spectrum of flat-field images. An alternative version of the van Cittert-Zernike theorem for intensity correlations is then derived for a quantized electromagnetic beam in a coherent state, which leads to Poisson statistics for the intrinsic intensity of the beam. PMID- 29036161 TI - Tensor decomposition-based sparsity divergence index for hyperspectral anomaly detection. AB - Recently, some methods exploiting both the spatial and spectral features have drawn increasing attention in hyperspectral anomaly detection (AD) and they perform well. In addition, a tensor decomposition-based (TenB) algorithm treating the hyperspectral dataset as a three-order tensor (two modes for space and one mode for spectra) has been proposed to further improve the performance for AD. In this paper, a method using the sparsity divergence index (SDI) based on tensor decomposition (SDI-TD) is proposed. First, three modes of the hyperspectral dataset are obtained by tensor decomposition. Then, low-rank and sparse matrix decomposition is employed separately along the three modes and three sparse matrices are acquired. Finally, SDIs based on the three sparse matrices along the three modes are obtained, and the final result is generated by using the joint SDI. Experiments tested on the real and synthetic hyperspectral dataset reveal that the proposed SDI-TD performs better than the comparison algorithms. PMID- 29036162 TI - Analysis of laser speckle reduction utilizing microlens-array-based projection screen. AB - This paper focuses on the theoretical analyzation of laser speckle reduction by utilizing a microlens array (MLA). A theoretical model was established to describe the screen effect on speckle reduction, taking into account MLA cell size and on-screen projection/detection resolution area size. The relationship between the speckle contrast ratio (SCR) of a projection system and the cell size of an MLA was studied and investigated. A guideline for choosing an MLA that is able to suppress SCR below the threshold of human perception is proposed from the obtained results. PMID- 29036163 TI - Propagation of uncertainties and applications in numerical modeling: tutorial. AB - Some inputs of computational models are commonly retrieved from external sources (handbooks, articles, dedicated measurements), and therefore are subject to uncertainties. The known experimental dispersion of the inputs can be propagated through the numerical models to produce samples of outputs. The stemming propagation of uncertainties is already significant in metrology but also has applications in optimization and inverse problem resolution of the modeled physical system. Moreover, the information on uncertainties can be used to characterize and compare models, and to deduce behavior laws. This tutorial gives tools and applications of the propagation of experimental uncertainties through models. To illustrate the method and its applications, we propose to investigate the scattering of light by gold nanoparticles, which also enables the comparison of the full Mie theory and the dipole approximation. The position of the localized surface plasmon resonance and the corresponding value of the scattering efficiency are more specifically studied. PMID- 29036164 TI - Crossing statistics of laser light scattered through a nanofluid. AB - In this paper, we investigate the crossing statistics of speckle patterns formed in the Fresnel diffraction region by a laser beam scattering through a nanofluid. We extend zero-crossing statistics to assess the dynamical properties of the nanofluid. According to the joint probability density function of laser beam fluctuation and its time derivative, the theoretical frameworks for Gaussian and non-Gaussian regimes are revisited. We count the number of crossings not only at zero level but also for all available thresholds to determine the average speed of moving particles. Using a probabilistic framework in determining crossing statistics, a priori Gaussianity is not essentially considered; therefore, even in the presence of deviation from Gaussian fluctuation, this modified approach is capable of computing relevant quantities, such as mean value of speed, more precisely. Generalized total crossing, which represents the weighted summation of crossings for all thresholds to quantify small deviation from Gaussian statistics, is introduced. This criterion can also manipulate the contribution of noises and trends to infer reliable physical quantities. The characteristic time scale for having successive crossings at a given threshold is defined. In our experimental setup, we find that increasing sample temperature leads to more consistency between Gaussian and perturbative non-Gaussian predictions. The maximum number of crossings does not necessarily occur at mean level, indicating that we should take into account other levels in addition to zero level to achieve more accurate assessments. PMID- 29036165 TI - Modeling open nanophotonic systems using the Fourier modal method: generalization to 3D Cartesian coordinates. AB - Recently, an open geometry Fourier modal method based on a new combination of an open boundary condition and a non-uniform k-space discretization was introduced for rotationally symmetric structures, providing a more efficient approach for modeling nanowires and micropillar cavities [J. Opt. Soc. Am. A33, 1298 (2016)JOAOD61084-752910.1364/JOSAA.33.001298]. Here, we generalize the approach to three-dimensional (3D) Cartesian coordinates, allowing for the modeling of rectangular geometries in open space. The open boundary condition is a consequence of having an infinite computational domain described using basis functions that expand the whole space. The strength of the method lies in discretizing the Fourier integrals using a non-uniform circular "dartboard" sampling of the Fourier k space. We show that our sampling technique leads to a more accurate description of the continuum of the radiation modes that leak out from the structure. We also compare our approach to conventional discretization with direct and inverse factorization rules commonly used in established Fourier modal methods. We apply our method to a variety of optical waveguide structures and demonstrate that the method leads to a significantly improved convergence, enabling more accurate and efficient modeling of open 3D nanophotonic structures. PMID- 29036166 TI - Asymptotic theory of circular polarization memory. AB - We establish a quantitative theory of circular polarization memory, which is the unexpected persistence of the incident circular polarization state in a strongly scattering medium. Using an asymptotic analysis of the three-dimensional vector radiative transfer equation (VRTE) in the limit of strong scattering, we find that circular polarization memory must occur in a boundary layer near the portion of the boundary on which polarized light is incident. The boundary layer solution satisfies a one-dimensional conservative scattering VRTE. Through a spectral analysis of this boundary layer problem, we introduce the dominant mode, which is the slowest-decaying mode in the boundary layer. To observe circular polarization memory for a particular set of optical parameters, we find that this dominant mode must pass three tests: (1) this dominant mode is given by the largest, discrete eigenvalue of a reduced problem that corresponds to Fourier mode k=0 in the azimuthal angle, and depends only on Stokes parameters U and V; (2) the polarization state of this dominant mode is largely circular polarized so that |V|?|U|; and (3) the circular polarization of this dominant mode is maintained for all directions so that V is sign-definite. By applying these three tests to numerical calculations for monodisperse distributions of Mie scatterers, we determine the values of the size and relative refractive index when circular polarization memory occurs. In addition, we identify a reduced, scalar-like problem that provides an accurate approximation for the dominant mode when circular polarization memory occurs. PMID- 29036167 TI - Development and validation of a protocol for optimizing the use of paraffin blocks in molecular epidemiological studies: The example from the HPV-AHEAD study. AB - Worldwide use of formalin-fixed paraffin-embedded blocks (FFPE) is extensive in diagnosis and research. Yet, there is a lack of optimized/standardized protocols to process the blocks and verify the quality and presence of the targeted tissue. In the context of an international study on head and neck cancer (HNC)-HPV-AHEAD, a standardized protocol for optimizing the use of FFPEs in molecular epidemiology was developed and validated. First, a protocol for sectioning the FFPE was developed to prevent cross-contamination and distributed between participating centers. Before processing blocks, all sectioning centers underwent a quality control to guarantee a satisfactory training process. The first and last sections of the FFPEs were used for histopathological assessment. A consensus histopathology evaluation form was developed by an international panel of pathologists and evaluated for four indicators in a pilot analysis in order to validate it: 1) presence/type of tumor tissue, 2) identification of other tissue components that could affect the molecular diagnosis and 3) quality of the tissue. No HPV DNA was found in sections from empty FFPE generated in any histology laboratories of HPV-AHEAD consortium and all centers passed quality assurance for processing after quality control. The pilot analysis to validate the histopathology form included 355 HNC cases. The form was filled by six pathologists and each case was randomly assigned to two of them. Most samples (86%) were considered satisfactory. Presence of >50% of invasive carcinoma was observed in all sections of 66% of cases. Substantial necrosis (>50%) was present in <2% of samples. The concordance for the indicators targeted to validate the histopathology form was very high (kappa > 0.85) between first and last sections and fair to high between pathologists (kappa/pabak 0.21-0.72). The protocol allowed to correctly process without signs of contamination all FFPE of the study. The histopathology evaluation of the cases assured the presence of the targeted tissue, identified the presence of other tissues that could disturb the molecular diagnosis and allowed the assessment of tissue quality. PMID- 29036168 TI - A machine learning approach for predicting CRISPR-Cas9 cleavage efficiencies and patterns underlying its mechanism of action. AB - The adaptation of the CRISPR-Cas9 system as a genome editing technique has generated much excitement in recent years owing to its ability to manipulate targeted genes and genomic regions that are complementary to a programmed single guide RNA (sgRNA). However, the efficacy of a specific sgRNA is not uniquely defined by exact sequence homology to the target site, thus unintended off targets might additionally be cleaved. Current methods for sgRNA design are mainly concerned with predicting off-targets for a given sgRNA using basic sequence features and employ elementary rules for ranking possible sgRNAs. Here, we introduce CRISTA (CRISPR Target Assessment), a novel algorithm within the machine learning framework that determines the propensity of a genomic site to be cleaved by a given sgRNA. We show that the predictions made with CRISTA are more accurate than other available methodologies. We further demonstrate that the occurrence of bulges is not a rare phenomenon and should be accounted for in the prediction process. Beyond predicting cleavage efficiencies, the learning process provides inferences regarding patterns that underlie the mechanism of action of the CRISPR-Cas9 system. We discover that attributes that describe the spatial structure and rigidity of the entire genomic site as well as those surrounding the PAM region are a major component of the prediction capabilities. PMID- 29036169 TI - Developing a dengue forecast model using machine learning: A case study in China. AB - BACKGROUND: In China, dengue remains an important public health issue with expanded areas and increased incidence recently. Accurate and timely forecasts of dengue incidence in China are still lacking. We aimed to use the state-of-the-art machine learning algorithms to develop an accurate predictive model of dengue. METHODOLOGY/PRINCIPAL FINDINGS: Weekly dengue cases, Baidu search queries and climate factors (mean temperature, relative humidity and rainfall) during 2011 2014 in Guangdong were gathered. A dengue search index was constructed for developing the predictive models in combination with climate factors. The observed year and week were also included in the models to control for the long term trend and seasonality. Several machine learning algorithms, including the support vector regression (SVR) algorithm, step-down linear regression model, gradient boosted regression tree algorithm (GBM), negative binomial regression model (NBM), least absolute shrinkage and selection operator (LASSO) linear regression model and generalized additive model (GAM), were used as candidate models to predict dengue incidence. Performance and goodness of fit of the models were assessed using the root-mean-square error (RMSE) and R-squared measures. The residuals of the models were examined using the autocorrelation and partial autocorrelation function analyses to check the validity of the models. The models were further validated using dengue surveillance data from five other provinces. The epidemics during the last 12 weeks and the peak of the 2014 large outbreak were accurately forecasted by the SVR model selected by a cross-validation technique. Moreover, the SVR model had the consistently smallest prediction error rates for tracking the dynamics of dengue and forecasting the outbreaks in other areas in China. CONCLUSION AND SIGNIFICANCE: The proposed SVR model achieved a superior performance in comparison with other forecasting techniques assessed in this study. The findings can help the government and community respond early to dengue epidemics. PMID- 29036170 TI - Quantifying the effects of temperature on mosquito and parasite traits that determine the transmission potential of human malaria. AB - Malaria transmission is known to be strongly impacted by temperature. The current understanding of how temperature affects mosquito and parasite life history traits derives from a limited number of empirical studies. These studies, some dating back to the early part of last century, are often poorly controlled, have limited replication, explore a narrow range of temperatures, and use a mixture of parasite and mosquito species. Here, we use a single pairing of the Asian mosquito vector, An. stephensi and the human malaria parasite, P. falciparum to conduct a comprehensive evaluation of the thermal performance curves of a range of mosquito and parasite traits relevant to transmission. We show that biting rate, adult mortality rate, parasite development rate, and vector competence are temperature sensitive. Importantly, we find qualitative and quantitative differences to the assumed temperature-dependent relationships. To explore the overall implications of temperature for transmission, we first use a standard model of relative vectorial capacity. This approach suggests a temperature optimum for transmission of 29 degrees C, with minimum and maximum temperatures of 12 degrees C and 38 degrees C, respectively. However, the robustness of the vectorial capacity approach is challenged by the fact that the empirical data violate several of the model's simplifying assumptions. Accordingly, we present an alternative model of relative force of infection that better captures the observed biology of the vector-parasite interaction. This model suggests a temperature optimum for transmission of 26 degrees C, with a minimum and maximum of 17 degrees C and 35 degrees C, respectively. The differences between the models lead to potentially divergent predictions for the potential impacts of current and future climate change on malaria transmission. The study provides a framework for more detailed, system-specific studies that are essential to develop an improved understanding on the effects of temperature on malaria transmission. PMID- 29036171 TI - Costs of facility-based HIV testing in Malawi, Zambia and Zimbabwe. AB - BACKGROUND: Providing HIV testing at health facilities remains the most common approach to ensuring access to HIV treatment and prevention services for the millions of undiagnosed HIV-infected individuals in sub-Saharan Africa. We sought to explore the costs of providing these services across three southern African countries with high HIV burden. METHODS: Primary costing studies were undertaken in 54 health facilities providing HIV testing services (HTS) in Malawi, Zambia and Zimbabwe. Routinely collected monitoring and evaluation data for the health facilities were extracted to estimate the costs per individual tested and costs per HIV-positive individual identified. Costs are presented in 2016 US dollars. Sensitivity analysis explored key drivers of costs. RESULTS: Health facilities were testing on average 2290 individuals annually, albeit with wide variations. The mean cost per individual tested was US$5.03.9 in Malawi, US$4.24 in Zambia and US$8.79 in Zimbabwe. The mean cost per HIV-positive individual identified was US$79.58, US$73.63 and US$178.92 in Malawi, Zambia and Zimbabwe respectively. Both cost estimates were sensitive to scale of testing, facility staffing levels and the costs of HIV test kits. CONCLUSIONS: Health facility based HIV testing remains an essential service to meet HIV universal access goals. The low costs and potential for economies of scale suggests an opportunity for further scale up. However low uptake in many settings suggests that demand creation or alternative testing models may be needed to achieve economies of scale and reach populations less willing to attend facility based services. PMID- 29036172 TI - A question of data quality-Testing pollination syndromes in Balsaminaceae. AB - Pollination syndromes and their predictive power regarding actual plant-animal interactions have been controversially discussed in the past. We investigate pollination syndromes in Balsaminaceae, utilizing quantitative respectively categorical data sets of flower morphometry, signal and reward traits for 86 species to test for the effect of different types of data on the test patterns retrieved. Cluster Analyses of the floral traits are used in combination with independent pollinator observations. Based on quantitative data we retrieve seven clusters, six of them corresponding to plausible pollination syndromes and one additional, well-supported cluster comprising highly divergent floral architectures. This latter cluster represents a non-syndrome of flowers not segregated by the specific data set here used. Conversely, using categorical data we obtained only a rudimentary resolution of pollination syndromes, in line with several earlier studies. The results underscore that the use of functional, exactly quanitified trait data has the power to retrieve pollination syndromes circumscribed by the specific data used. Data quality can, however, not be replaced by sheer data volume. With this caveat, it is possible to identify pollination syndromes from large datasets and to reliably extrapolate them for taxa for which direct observations are unavailable. PMID- 29036173 TI - Pre-treatment with GnRHa or ulipristal acetate prior to laparoscopic and laparotomic myomectomy: A systematic review and meta-analysis. AB - BACKGROUND: Myomectomy has potential risks of complications. To reduce these risks, medical pre-treatment can be applied to reduce fibroid size and thereby potentially decrease intra-operative blood loss, the need for blood transfusion and emergency hysterectomy. The aim of this systematic review and meta-analysis is to study the effectiveness of medical pre-treatment with Gonadotropin releasing hormone agonists (GnRHa) or ulipristal acetate prior to laparoscopic or laparotomic myomectomy on intra-operative and post-operative outcomes. METHODS: We performed an extensive search in Embase.com, Wiley/Cochrane Library and PubMed in accordance with the Prisma guidelines. All studies published as full papers in peer reviewed journals using GnRHa or ulipristal acetate as medical pre-treatment independent of route of administration or dosage before laparotomic or laparoscopic myomectomy were included. The primary outcome was duration of surgery. Secondary outcomes were duration of enucleation, blood loss, degree of difficulty of surgery, identification of cleavage planes, proportion of vertical incisions, conversion rate, frequency of blood transfusions, post-operative complications, duration of hospital stay, frequency of recurrence of fibroids, frequency of uterine adhesions, recovery time and quality of life. No language restrictions were applied. Meta-analysis were performed where possible. FINDINGS: Twenty-three studies were included. In laparotomic myomectomy, pre-treatment with GnRHa decreases intra-operative blood loss with 97.39ml (95% CI -111.80 to 82.97) compared to no pre-treatment or placebo. Pre-treatment with GnRHa before laparoscopic myomectomies also shows a reduction in intra-operative blood loss by 23.03ml (95% CI -40.79 to -5.27) and in the frequency of blood transfusions (OR 0.17, 95% CI 0.05 to 0.55) compared to no pre-treatment. Only two retrospective cohort studies reported on pre-treatment with ulipristal acetate compared to no pre-treatment before laparoscopic myomectomy showing a statistically significant reduction in intra-operative blood loss, duration of surgery and frequency of blood transfusions after pre-treatment with ulipristal acetate. CONCLUSION: Administration of GnRHa prior to laparotomic myomectomy reduces blood loss and might decrease uterine adhesion formation. Pre-treatment with GnRHa before laparoscopic myomectomy reduces blood loss, the frequency of blood transfusions and might increase recurrence rate of fibroids, however it should be taken into account that some results are mainly based on cohort studies. Other pre-treatment agent ulipristal acetate has not been investigated sufficiently for relevant surgical outcomes. PMID- 29036174 TI - Equity in international health research collaborations in Africa: Perceptions and expectations of African researchers. AB - INTRODUCTION AND METHOD: Africa is currently host to a number of international genomics research and biobanking consortia, each with a mandate to advance genomics research and biobanking in Africa. Whilst most of these consortia promise to transform the way international health research is done in Africa, few have articulated exactly how they propose to go about this. In this paper, we report on a qualitative interviewing study in which we involved 17 genomics researchers in Africa. We describe their perceptions and expectations of international genomics research and biobanking initiatives in Africa. RESULTS: All interviewees were of the view that externally funded genomics research and biobanking initiatives in Africa, have played a critical role in building capacity for genomics research and biobanking in Africa and in providing an opportunity for researchers in Africa to collaborate and network with other researchers. Whilst the opportunity to collaborate was seen as a benefit, some interviewees stressed the importance of recognizing that these collaborations carry mutual benefits for all partners, including their collaborators in HICs. They also voiced two major concerns of being part of these collaborative initiatives: the possibility of exploitation of African researchers and the non sustainability of research capacity building efforts. As a way of minimising exploitation, researchers in Africa recommended that genuine efforts be made to create transparent and equitable international health research partnerships. They suggested that this could be achieved through,: having rules of engagement, enabling African researchers to contribute to the design and conduct of international health projects in Africa, and mutual and respectful exchange of experience and capacity between research collaborators. These were identified as hallmarks to equitable international health research collaborations in Africa. CONCLUSION: Genomics research and biobanking initiatives in Africa such as H3Africa have gone some way in defining aspects of fair and equitable research collaborations in Africa. However, they will need to strive at achieving equitable health research collaborations if they truly aim at setting a gold standard for how international health research should be conducted in Africa. PMID- 29036175 TI - The efficiency of aspheric intraocular lens according to biometric measurements. AB - PURPOSE: To analyze internal spherical aberration in pseudophakic eyes that underwent aspheric intraocular lens (IOL) implantation, and to investigate the relationships between biometric data and the effectiveness of aspheric IOL implantation. METHODS: This retrospective study included 40 eyes of 40 patients who underwent implantation of an IOL having a negative spherical aberration of 0.20 MUm (CT ASPHINA 509M; Carl Zeiss Meditec Inc., Germany). The IOLMaster (version 5.0; Carl Zeiss AG, Germany) was used for preoperative biometric measurements (axial length, anterior chamber depth, central corneal power) and the measurement of postoperative anterior chamber depth. The spherical aberrations were measured preoperatively and 3 months postoperatively using the iTrace (Tracey Technologies, Houston, TX, USA) at a pupil diameter of 5.0 mm. We investigated the relationships between preoperative biometric data and postoperative internal spherical aberration, and compared biometric measurements between 2 subgroups stratified according to internal spherical aberration (spherical aberration <= -0.06 MUm vs. spherical aberration > -0.06 MUm). RESULTS: The mean postoperative internal spherical aberration was -0.087 +/- 0.063 MUm. Preoperative axial length and residual total spherical aberration showed statistically significant correlations with internal spherical aberration (p = 0.041, 0.002). Preoperative axial length, postoperative anterior chamber depth, IOL power, and residual spherical aberration showed significant differences between the 2 subgroups stratified according to internal spherical aberration (p = 0.020, 0.029, 0.048, 0.041 respectively). CONCLUSION: The corrective effect of an aspheric IOL is influenced by preoperative axial length and postoperative anterior chamber depth. Not only the amount of negative spherical aberration on the IOL surface but also the preoperative axial length should be considered to optimize spherical aberration after aspheric IOL implantation. PMID- 29036176 TI - Association and clinical utility of NAT2 in the prediction of isoniazid-induced liver injury in Singaporean patients. AB - BACKGROUND AND AIMS: Isoniazid (INH) is part of the first-line-therapy for tuberculosis (TB) but can cause drug-induced liver injury (DILI). Several candidate single nucleotide polymorphisms (SNPs) have been previously identified but the clinical utility of these SNPs in the prediction of INH-DILI remains uncertain. The aim of this study was to assess the association between selected candidate SNPs and the risk of INH-DILI and to assess the clinical validity of associated variants in a Singaporean population. METHODS: This was a case-control study where 24 INH-DILI cases and 79 controls were recruited from the TB control unit in a tertiary hospital. Logistic regression was used to test for the association between candidate SNPs and INH-DILI. NAT2 acetylator status was inferred from genotypes and tested for association with INH-DILI. Finally, clinical validity measures were estimated for significant variants. RESULTS: Two SNPs in NAT2 (rs1041983 and rs1495741) and NAT2 slow acetylators (SA) were significantly associated with INH-DILI (OR (95% CI) = 13.86 (4.30-44.70), 0.10 (0.03-0.33) and 9.98 (3.32-33.80), respectively). Based on an INH-DILI prevalence of 10%, the sensitivity, specificity, positive and negative predictive values of NAT2 SA were 75%, 78%, 28% and 97%, respectively. The population attributable fraction (PAF) and number needed to test (NNT) for NAT2 SA were estimated to be 0.67 and 4.08, respectively. A model with clinical and NAT2 acetylator status provided significantly better prediction for INH-DILI than a clinical model alone (area under receiver operating characteristic curve = 0.863 vs. 0.766, respectively, p = 0.027). CONCLUSIONS: We show the association between NAT2 SA and INH-DILI in a Singaporean population and demonstrated its clinical utility in the prediction of INH-DILI. PMID- 29036177 TI - Dietary patterns in internal migrants in a continental country: A population based study. AB - OBJECTIVE: The objective of this study was to assess the differences and similarities in dietary patterns among migrants and natives. METHODS: A population-based, cross-sectional study was conducted in the city of Sao Paulo. The study population included internal migrants, defined as individuals born outside Sao Paulo city who had lived in the city for ten years or longer. The final population (n = 999) was divided into three groups: natives of Sao Paulo (n = 354), migrants from the Southeast (n = 349) and migrants from the Northeast (n = 296). Factor and principal component analysis was employed to derive dietary patterns. The standardized scores were compared among groups using linear regression. RESULTS: Differences in income per capita, years of education, self reported race, smoking habits, alcohol consumption, nutritional status and prevalence of hypertension were found for place of birth. Three dietary patterns were identified: prudent (salad dressings, vegetables, natural flavorings, fruits, whole-grain bread, white cheeses and juices), traditional (rice, beans, bread/toast/crackers, butter/margarine, whole milk, coffee/teas, sugar), and modern (sodas, pastries/sandwiches/pizzas, yellow cheeses, pastas, sauces, alcoholic beverages, sweets, processed meats). Compared to natives, migrants from the Southeast had an inversely proportional adherence to the modern pattern whereas migrants from the Northeast had an inverse association with the prudent and modern patterns and a positive association with the traditional pattern. CONCLUSIONS: Sao Paulo natives and internal migrants from other regions of Brazil exhibited different dietary patterns. The results presented here add perspectives to be considered in the study of non-communicable diseases and its different incidences among migrants and natives. PMID- 29036178 TI - Substantial population structure of Plasmodium vivax in Thailand facilitates identification of the sources of residual transmission. AB - BACKGROUND: Plasmodium vivax transmission in Thailand has been substantially reduced over the past 10 years, yet it remains highly endemic along international borders. Understanding the genetic relationship of residual parasite populations can help track the origins of the parasites that are reintroduced into malaria free regions within the country. METHODOLOGY/RESULTS: A total of 127 P. vivax isolates were genotyped from two western provinces (Tak and Kanchanaburi) and one eastern province (Ubon Ratchathani) of Thailand using 10 microsatellite markers. Genetic diversity was high, but recent clonal expansion was detected in all three provinces. Substantial population structure and genetic differentiation of parasites among provinces suggest limited gene flow among these sites. There was no haplotype sharing among the three sites, and a reduced panel of four microsatellite markers was sufficient to assign the parasites to their provincial origins. CONCLUSION/SIGNIFICANCE: Significant parasite genetic differentiation between provinces shows successful interruption of parasite spread within Thailand, but high diversity along international borders implies a substantial parasite population size in these regions. The provincial origin of P. vivax cases can be reliably determined by genotyping four microsatellite markers, which should be useful for monitoring parasite reintroduction after malaria elimination. PMID- 29036179 TI - Extreme strontium concentrations reveal specific biomineralization pathways in certain coccolithophores with implications for the Sr/Ca paleoproductivity proxy. AB - The formation of the coccolith biominerals by a group of marine algae (the Coccolithophores) offers fascinating research avenues both from the biological and geological sides. It is surprising how biomineralisation by a key phytoplanktonic group remains underconstrained, yet is influential on ocean alkalinity and responsible for the built up of our paleoclimatic archive over the last 200 Myrs. Here, we report two close relative coccolith taxa exhibiting substantial bioaccumulation of strontium: Scyphosphaera and Pontosphaera grown in the laboratory or retrieved from Pliocene sediments. This strontium enrichment relative to calcium is one order of magnitude greater than reported in other coccoliths of the orders Isochrysidales and Coccolithales, and extends well beyond established controls on Sr/Ca ratios by temperature and growth rate. We discuss this prominent vital effect in relation with possible specific uptake of strontium relative to calcium from the extracellular environment to the coccolith vesicle in coccolithophores excreting very large scale coccoliths. The report of Sr-rich biominerals challenges our current understanding of the cellular acquisition and intracellular trafficking of alkaline earth cations in phytoplanktonic calcifying eukaryotic algae. The presence of Sr-rich coccolith species in the geological record has to be quantitatively considered in future Sr/Ca-based palaeoceanographic reconstruction. PMID- 29036180 TI - Real and visually-induced body inclination differently affect the perception of object stability. AB - The prediction of object stability on earth requires the establishment of a perceptual frame of reference based on the direction of gravity. Across three experiments, we measured the critical angle (CA) at which an object appeared equally likely to fall over or right itself. We investigated whether the internal representation of the gravity direction, biased by either simulated tilt (rotating visual surround) or real body tilt situations, influences in a similar fashion the judgment of stability. In the simulated tilt condition, the estimated CA and the perceived gravity are both deviated in the same direction. In the real tilt condition, the orientation of the body affects the perception of gravity direction but has no effect on the estimated CA. Results suggest that people differently weigh gravity direction information provided by visual motion and by visual polarity cues for estimating the stability of objects. PMID- 29036181 TI - Juvenile myasthenia gravis in Norway: HLA-DRB1*04:04 is positively associated with prepubertal onset. AB - BACKGROUND: Juvenile myasthenia gravis (MG) is a rare autoantibody mediated autoimmune disorder targeting the neuromuscular endplate. The clinical hallmark is muscle weakness and fatigability. Disease aetiology is complex, including both genetic and environmental factors. The involvement of genes in the human leukocyte antigen (HLA) is well established in adult MG. However, HLA associations in European juvenile MG have not been studied. This case-control study aimed to investigate and characterize genetic risk factors in prepubertal and postpubertal onset juvenile MG. METHODOLOGY/PRINCIPAL FINDINGS: A population based Norwegian cohort of 43 juvenile MG patients (17 with prepubertal onset, 26 with postpubertal onset) and 368 controls were included. Next generation sequencing of five HLA loci (HLA-A, -B, -C, -DRB1 and -DQB1) was performed, and a positive association was seen with HLA-B*08 (OR (95% CI) = 3.27 (2.00-5.36), Pc = 0.00003) and HLA-DRB1*04:04 (OR (95% CI) = 2.65 (1.57-4.24), Pc = 0.03). Stratified in postpubertal and prepubertal onset, HLA-DRB1*04:04 was only positively associated with the latter (P = 0.01). The HLA-B*08 allele (12.9% in the controls), previously described associated with early onset adult MG, was most frequently observed in postpubertal onset MG (40.4%, P = 0.0002) but also increased among prepubertal onset MG (23.5%, P = 0.05). CONCLUSION: This study provides novel information about HLA susceptibility alleles in Norwegian juvenile MG where HLA-DRB1*04:04 was associated with prepubertal onset. PMID- 29036182 TI - Proteome analysis of bronchoalveolar lavage from calves infected with bovine respiratory syncytial virus-Insights in pathogenesis and perspectives for new treatments. AB - Human and bovine respiratory syncytial viruses (HRSV/BRSV) are major causes of severe lower respiratory tract infections in children and calves, respectively. Shared epidemiological, clinical, pathological and genetic characteristics of these viruses make comparative research highly relevant. To characterise the host response against BRSV infection, bronchoalveolar lavage supernatant (BAL) from i) non-vaccinated, BRSV-infected ii) vaccinated, BRSV-infected and iii) non-infected calves was analysed by tandem mass spectrometry. Proteins were semi-quantified and protein expression was validated by immunoblotting. Correlations between selected proteins and pathology, clinical signs and virus shedding were investigated. Calves with BRSV-induced disease had increased total protein concentrations and a decreased number of proteins identified in BAL. The protein profile was characterised by neutrophil activation and a reduction in identified antioxidant enzymes. The presence of neutrophils in alveolar septa, the expression level of neutrophil-related or antioxidant proteins and LZTFL1 correlated significantly with disease. Citrullinated histone 3, an indicator of extracellular traps (ETs), was only detected in non-vaccinated, BRSV-infected animals. By bringing disequilibrium in the release and detoxification of reactive oxygen species, generating ETs and causing elastine degradation, exaggerated neutrophil responses might exacerbate RSV-induced disease. Neutrophil-mitigating or antioxidant treatments should be further explored. PMID- 29036183 TI - MRI-assessed atrophy subtypes in Alzheimer's disease and the cognitive reserve hypothesis. AB - BACKGROUND/AIMS: MRI assessment of the brain has demonstrated four different patterns of atrophy in patients with Alzheimer's disease dementia (AD): typical AD, limbic-predominant AD, hippocampal-sparing AD, and a subtype with minimal atrophy, previously referred to as no-atrophy AD. The aim of the present study was to identify and describe the differences between these four AD subtypes in a longitudinal memory-clinic study. METHODS: The medial temporal lobes, the frontal regions, and the posterior regions were assessed with MRI visual rating scales to categorize 123 patients with mild AD according to ICD-10 and NINCDS-ADRDA criteria and the clinical dementia rating scale (CDR) into atrophy subtypes. Demographic data, neuropsychological measures, cerebrospinal-fluid biomarkers, and progression rate of dementia at two-year follow-up were compared between the groups. RESULTS: Typical AD was found in 59 patients (48%); 29 (24%) patients had limbic-predominant AD; 19 (15%) had hippocampal-sparing AD; and 16 (13%) belonged to the group with minimal atrophy. No differences were found regarding cognitive test results or progression rates between the different subtypes. Using adjusted logistic regression analysis, we found that the patients in the minimal-atrophy group were less educated, had a lower baseline CDR sum of boxes score, and had higher levels of amyloid beta in the cerebrospinal fluid. CONCLUSION: Previous results concerning the prevalence and the similar phenotypic expressions of the four AD subtypes were confirmed. The main finding was that patients with minimal atrophy as assessed by MRI had less education than the other AD subtypes and that this could support the cognitive reserve hypothesis and, at least in part, explain the lower degree of atrophy in this group. Patients with less formal education might present with clinically typical AD symptoms before they have positive biomarkers of AD and this finding might challenge suggested biomarker based criteria for AD. PMID- 29036184 TI - Proinflammatory response of canine trophoblasts to Brucella canis infection. AB - Brucella canis infection is an important cause of late-term abortion in pregnant bitches. The pathophysiological mechanisms leading to B. canis-induced abortion are unknown, but heavily infected trophoblasts are consistently observed. As trophoblasts responses to other pathogens contribute to placental inflammation leading to abortion, the aim of the present study was to characterize the cytokine response of canine trophoblasts to B. canis infection. To achieve this, trophoblasts isolated from term placenta of healthy female dogs were infected with B. canis, culture supernatants were harvested for cytokine determinations, and the load of intracellular viable B. canis was determined at different times post-infection. Additionally, cytokine responses were assessed in non-infected trophoblasts stimulated with conditioned media (CM) from B. canis-infected canine monocytes and neutrophils. Finally, cytokine response and bacteria replication were assessed in canine placental explants infected ex vivo. B. canis successfully infected and replicated in primary canine trophoblasts, eliciting an increase in IL-8 and RANTES (CCL5) secretion. Moreover, the stimulation of trophoblasts with CM from B. canis-infected monocytes and neutrophils induced a significant increase in IL-8, IL-6 and RANTES secretion. B. canis replication was confirmed in infected placental explants and the infection elicited an increased secretion of TNF-alpha, IL-8, IL-6 and RANTES. This study shows that canine trophoblasts produce proinflammatory cytokines in response to B. canis infection and/or to stimulation with factors produced by infected monocytes and neutrophils. These cytokines may contribute to placental inflammation leading to abortion in B. canis-infected pregnant bitches. PMID- 29036185 TI - Impact of social inequalities at birth on the longevity of children born 1914 1916: A cohort study. AB - BACKGROUND: Testing whether familial socioeconomic status (SES) in childhood is a predictor of mortality has rarely been done on historical cohorts. METHODS: The birth certificates of 4,805 individuals born 1914-1916 in 16 districts of the Paris region were retrieved. The handwritten information provided the occupation of parents, the legitimacy status, life events (e.g. marriage, divorce), and the precise date of death when after 1945 (i.e. age 31 years (y) in the cohort). We used the median age at death (MAD) as a global measure of mortality, then studied separately survival to and after 31 y. Multivariate Imputation by Chained Equations (MICE), Generalized Additive Models (GAMs) and mixed effect Cox models were used. RESULTS: MAD showed large variations according to paternal occupation. The lowest MAD in both sexes was that of workers' children: it was 56.3 y (95% CI: [48.6-62.7]) in men and 67.4 y (95% CI: [60.8-72.7]) in women, respectively (95% CI: 13.4 y [5.7-21.3]) and 12.3 y (95% CI: [4.0-19.2]) below the highest MAD attained. MAD experienced by illegitimate children was 18.9 y (95% CI: [13.3 32.3]) shorter than of legitimate children. The multivariate analysis revealed that in both sexes survival to age 31 y was predicted independently by legitimacy and paternal occupation. Paternal occupation was found significantly associated with mortality after age 31 y in females only: accordingly difference in life expectancy at age 31 y was 4.4 y (95% CI: [1.2-7.6]) between upper class and workers' daughters. CONCLUSIONS: Paternal occupation and legitimacy status were strong predictors of offspring longevity in this one-century historical cohort born during World War One. PMID- 29036186 TI - The MGMT promoter single-nucleotide polymorphism rs1625649 had prognostic impact on patients with MGMT methylated glioblastoma. AB - Promoter methylation is the most significant mechanism to regulate O6 methylguanine-DNA-methyltransferase (MGMT) expression. Single-nucleotide polymorphisms (SNPs) in the MGMT promoter region may also play a role. The aim of this study was to evaluate the clinical significance of SNPs in the MGMT promoter region of glioblastoma. Genomic DNAs from 118 glioblastomas were collected for polymerase chain reaction (PCR) amplification. Sanger sequencing was used to sequence the MGMT promoter region to detect SNPs. The results were correlated with MGMT status and patient survival. Rs1625649 was the only polymorphic SNP located at the MGMT promoter region in 37.5% of glioblastomas. Homozygous rs1625649 (AA genotype) was correlated with a higher MGMT methylation level and a lower protein expression, but the result was not statistically significant. In patients with MGMT methylated glioblastoma, cases with homozygous rs1625649 (AA genotype) were significantly associated with a lack of MGMT protein expression and a better progression-free survival (PFS) than the cases with wild type rs1625649 (CC genotype) or heterozygous rs1625649 (CA genotype). The survival impact was significant in multivariate analyses. In conclusion, the MGMT promoter homozygous rs1625649 (AA genotype) was found to correlate with a better PFS in patients with MGMT methylated glioblastoma. PMID- 29036187 TI - Analysis of transient hypermorphic activity of E(spl)D during R8 specification. AB - Drosophila atonal (ato) is required for the specification of founding R8 photoreceptors during retinal development. ato is regulated via dual eye-specific enhancers; ato-3' is subject to initial induction whereas 5'-ato facilitates Notch-mediated autoregulation. Notch is further utilized to induce bHLH repressors of the E(spl) locus to restrict Ato from its initial broad expression to individual cells. Although Notch operates in two, distinct phases, it has remained unclear how the two phases maintain independence from one another. The difference in these two phases has attributed to the hypothesized delayed expression of E(spl). However, immunofluorescence data indicate that E(spl) are expressed during early Ato patterning, suggesting a more sophisticated underlying mechanism. To probe this mechanism, we provide evidence that although E(spl) exert no influence on ato-3', E(spl) repress 5'-ato and deletion of the E(spl) locus elicits precocious 5'-ato activity. Thus, E(spl) imposes a delay to the timing in which Ato initiates autoregulation. We next sought to understand this finding in the context of E(spl)D, which encodes a dysregulated variant of E(spl)M8 that perturbs R8 patterning, though, as previously reported, only in conjunction with the mutant receptor Nspl. We established a genetic interaction between E(spl)D and roughened eye (roe), a known modulator of Notch signaling in retinogenesis. This link further suggests a dosage-dependence between E(spl) and the proneural activators Ato and Sens, as indicated via interaction assays in which E(spl)D renders aberrant R8 patterning in conjunction with reduced proneural dosage. In total, the biphasicity of Notch signaling relies, to some degree, on the post-translational regulation of individual E(spl) members and, importantly, that post-translational regulation is likely necessary to modulate the level of E(spl) activity throughout the progression of Ato expression. PMID- 29036188 TI - Family functioning, parenting stress and quality of life in mothers and fathers of Polish children with high functioning autism or Asperger syndrome. AB - The aim of the study was to investigate the perception of the family functioning in parents of children with autism spectrum disorders (ASD) with normal-range intelligence and the relationships between family functioning, parenting stress and quality of life. Dyads of parents of children with ASD without intellectual disability and parents of typically developing children (controls) completed a set of self-report questionnaires. Parents of children with ASD reported lower functioning of the family as a whole and their own functioning as family members; they exhibited higher levels of parenting stress and lower quality of life. Mothers of children with ASD experienced more stress in personal domain than fathers. Relationships between family functioning, parenting stress and quality of life have been established. There were also moderate to strong correlations in mother-father dyads between their assessments of family functioning, parenting stress and QoL in social relationships and environmental domains. PMID- 29036189 TI - Inhibition of CUG-binding protein 1 and activation of caspases are critically involved in piperazine derivative BK10007S induced apoptosis in hepatocellular carcinoma cells. AB - Though piperazine derivative BK10007S was known to induce apoptosis in pancreatic cancer xenograft model as a T-type CaV3.1 a1G isoform calcium channel blocker, its underlying antitumor mechanism still remains unclear so far. Thus, in the present study, the antitumor mechanism of BK10007S was elucidated in hepatocellular carcinoma cells (HCCs). Herein, BK10007S showed significant cytotoxicity by 3-[4,5-2-yl]-2,5-diphenyltetra-zolium bromide (MTT) assay and anti-proliferative effects by colony formation assay in HepG2 and SK-Hep1 cells. Also, apoptotic bodies and terminal deoxynucleotidyl transferase (TdT) dUTP Nick End Labeling (TUNEL) positive cells were observed in BK10007S treated HepG2 and SK-Hep1 cells by 4',6-diamidino-2-phenylinodole (DAPI) staining and TUNEL assay, respectively. Consistently, BK10007S increased sub G1 population in HepG2 and SK Hep1 cells by cell cycle analysis. Furthermore, Western blotting revealed that BK10007S activated the caspase cascades (caspase 8, 9 and 3), cleaved poly (ADP ribose) polymerase (PARP), and downregulated the expression of cyclin D1, survivin and for CUG-binding protein 1 (CUGBP1 or CELF1) in HepG2 and SK-Hep1 cells. Conversely, overexpression of CUGBP1 reduced cleavages of PARP and caspase 3, cytotoxicity and subG1 population in BK10007S treated HepG2 cells. Overall, these findings provide scientific evidences that BK10007S induces apoptosis via inhibition of CUGBP1 and activation of caspases in hepatocellular carcinomas as a potent anticancer candidate. PMID- 29036190 TI - Clusternomics: Integrative context-dependent clustering for heterogeneous datasets. AB - Integrative clustering is used to identify groups of samples by jointly analysing multiple datasets describing the same set of biological samples, such as gene expression, copy number, methylation etc. Most existing algorithms for integrative clustering assume that there is a shared consistent set of clusters across all datasets, and most of the data samples follow this structure. However in practice, the structure across heterogeneous datasets can be more varied, with clusters being joined in some datasets and separated in others. In this paper, we present a probabilistic clustering method to identify groups across datasets that do not share the same cluster structure. The proposed algorithm, Clusternomics, identifies groups of samples that share their global behaviour across heterogeneous datasets. The algorithm models clusters on the level of individual datasets, while also extracting global structure that arises from the local cluster assignments. Clusters on both the local and the global level are modelled using a hierarchical Dirichlet mixture model to identify structure on both levels. We evaluated the model both on simulated and on real-world datasets. The simulated data exemplifies datasets with varying degrees of common structure. In such a setting Clusternomics outperforms existing algorithms for integrative and consensus clustering. In a real-world application, we used the algorithm for cancer subtyping, identifying subtypes of cancer from heterogeneous datasets. We applied the algorithm to TCGA breast cancer dataset, integrating gene expression, miRNA expression, DNA methylation and proteomics. The algorithm extracted clinically meaningful clusters with significantly different survival probabilities. We also evaluated the algorithm on lung and kidney cancer TCGA datasets with high dimensionality, again showing clinically significant results and scalability of the algorithm. PMID- 29036191 TI - Men ask more questions than women at a scientific conference. AB - Gender inequity in science and academia, especially in senior positions, is a recognised problem. The reasons are poorly understood, but include the persistence of historical gender ratios, discrimination and other factors, including gender-based behavioural differences. We studied participation in a professional context by observing question-asking behaviour at a large international conference with a clear equality code of conduct that prohibited any form of discrimination. Accounting for audience gender ratio, male attendees asked 1.8 questions for each question asked by a female attendee. Amongst only younger researchers, male attendees also asked 1.8 questions per female question, suggesting the pattern cannot be attributed to the temporary problem of demographic inertia. We link our findings to the 'chilly' climate for women in STEM, including wider experiences of discrimination likely encountered by women throughout their education and careers. We call for a broader and coordinated approach to understanding and addressing the barriers to women and other under represented groups. We encourage the scientific community to recognise the context in which these gender differences occur, and evaluate and develop methods to support full participation from all attendees. PMID- 29036192 TI - Viral infection upregulates myostatin promoter activity in orange-spotted grouper (Epinephelus coioides). AB - Myostatin is a negative regulator of myogenesis and has been suggested to be an important factor in the development of muscle wasting during viral infection. The objective of this study was to characterize the main regulatory element of the grouper myostatin promoter and to study changes in promoter activity due to viral stimulation. In vitro and in vivo experiments indicated that the E-box E6 is a positive cis-and trans-regulation motif, and an essential binding site for MyoD. In contrast, the E-box E5 is a dominant negative cis-regulatory. The characteristics of grouper myostatin promoter are similar in regulation of muscle growth to that of other species, but mainly through specific regulatory elements. According to these results, we conducted a study to investigate the effect of viral infection on myostatin promoter activity and its regulation. The nervous necrosis virus (NNV) treatment significantly induced myostatin promoter activity. The present study is the first report describing that specific myostatin motifs regulate promoter activity and response to viral infection. PMID- 29036194 TI - Micromeryx? eiselei-A new moschid species from Steinheim am Albuch, Germany, and the first comprehensive description of moschid cranial material from the Miocene of Central Europe. AB - Moschids are enigmatic pecoran ruminants whose phylogeny is still not fully understood. So far we know only little of the family's early evolutionary history and the origin of the modern genus, Moschus. Here we present a comprehensive description of cranial material, including the ear region and the dentition, of fossil moschid material from the Middle Miocene locality Steinheim am Albuch (13.5 Ma; Germany). This study provides the first exhaustive dataset for the cranial osteology of Micromeryx flourensianus, the most likely oldest true moschid. It furthermore reveals the presence of a second, so far undescribed moschid species, we here name Micromeryx? eiselei, in the abundant material from the locality. The two taxa can be clearly distinguished by characters of the skull, the ear region, the dentition, as well as by size. This evidences the sympatric occurrence of two moschid species in the locality Steinheim am Albuch. PMID- 29036193 TI - Gestational age-related patterns of AMOT methylation are revealed in preterm infant endothelial progenitors. AB - OBJECTIVE: Preterm birth is associated with altered angiogenesis and with increased risk of cardiovascular dysfunction and hypertension at adulthood. We previously demonstrated that in preterm newborns circulating cord blood endothelial progenitor cells (ECFC), responsible for angio/vasculogenesis, are reduced in number and display altered angiogenic properties. Altered angiogenic function was associated with a decreased expression of pro-angiogenic genes, among which the AMOT gene which is a strong positive regulator of angiogenesis. Such dysregulation may be related to epigenetic factors. In this study we analyse the methylation profiling of the AMOT gene during development, through a comparative analysis of the cord blood ECFC of preterm newborns and their term counterpart. METHODS: We used both cloning-sequencing and pyrosequencing experiments to perform a comparative analysis of the DNA methylation profile of the promoter CpG island of AMOT gene in the cord blood ECFC of 16 preterm newborns (28-35 weeks gestational age-GA) and 15 term newborns (>37 weeks GA). RESULTS: Twenty nine clones (obtained from 2 term newborns) and forty clones (obtained from 3 preterm newborns) were sequenced. The AMOT gene methylation rate was significantly higher in preterm compared to term newborns (4.5% versus 2.5% respectively: chi2 = 3.84; P = 1.8 10-02). Bisulfite pyrosequencing identified four CpG dinucleotides with significantly higher methylation levels in preterm newborns. This CpG-targeted methylation significantly decreased with increasing gestational age. CONCLUSIONS: These findings highlight importance of pro angiogenic AMOT gene methylation in ECFC, suggesting that epigenetic mechanisms may control the regulation of angiogenesis during development. Therefore they pave the way to specific short term and long term complications of preterm birth by altered angiogenesis. PMID- 29036196 TI - Understanding the antimicrobial activity of selected disinfectants against methicillin-resistant Staphylococcus aureus (MRSA). AB - Disinfectants and biocidal products have been widely used to combat Methicillin resistant Staphylococcus aureus (MRSA) infections in homes and healthcare environments. Although disruption of cytoplasmic membrane integrity has been documented as the main bactericidal effect of biocides, little is known about the biochemical alterations induced by these chemical agents. In this study, we used Fourier transform infrared (FT-IR) spectroscopy and chemometric tools as an alternative non-destructive technique to determine the bactericidal effects of commonly used disinfectants against MRSA USA-300. FTIR spectroscopy permits a detailed characterization of bacterial reactivity, allowing an understanding of the fundamental mechanism of action involved in the interaction between bacteria and disinfectants. The disinfectants studied were ethanol 70% (N = 5), isopropanol (N = 5), sodium hypochlorite (N = 5), triclosan (N = 5) and triclocarban (N = 5). Results showed less than 5% colony forming units growth of MRSA treated with triclocarban and no growth in the other groups. Nearly 70,000 mid-infrared spectra from the five treatments and the two control (untreated; N = 4) groups of MRSA (bacteria grown in TSB and incubated at 37 degrees C (Control I) / at ambient temperature (Control II), for 24h) were pre-processed and analyzed using principal component analysis followed by linear discriminant analysis (PCA-LDA). Clustering of strains of MRSA belonging to five treatments and the discrimination between each treatment and two control groups in MRSA (untreated) were investigated. PCA-LDA discriminatory frequencies suggested that ethanol-treated spectra are the most similar to isopropanol-treated spectra biochemically. Also reported here are the biochemical alterations in the structure of proteins, lipid membranes, and phosphate groups of MRSA produced by sodium hypochlorite, triclosan, and triclocarban treatments. These findings provide mechanistic information involved in the interaction between MRSA strains and hygiene products; thereby demonstrating the potential of spectroscopic analysis as an objective, robust, and label-free tool for evaluating the macromolecular changes involved in disinfectant-treated MRSA. PMID- 29036195 TI - Mutational and large deletion study of genes implicated in hereditary forms of primary hyperparathyroidism and correlation with clinical features. AB - The aim of this study was to carry out genetic screening of the MEN1, CDKN1B and AIP genes, both by direct sequencing of the coding region and multiplex ligation dependent probe amplification (MLPA) assay in the largest monocentric series of Italian patients with Multiple Endocrine Neoplasia type 1 syndrome (MEN1) and Familial Isolated Hyperparathyroidism (FIHP). The study also aimed to describe and compare the clinical features of MEN1 mutation-negative and mutation-positive patients during long-term follow-up and to correlate the specific types and locations of MEN1 gene mutations with onset and aggressiveness of the main MEN1 manifestations. A total of 69 index cases followed at the Endocrinology Unit in Pisa over a period of 19 years, including 54 MEN1 and 15 FIHP kindreds were enrolled. Seven index cases with MEN1 but MEN1 mutation-negative, followed at the University Hospital of Cagliari, were also investigated. FIHP were also tested for CDC73 and CaSR gene alterations. MEN1 germline mutations were identified in 90% of the index cases of familial MEN1 (F-MEN1) and in 23% of sporadic cases (S MEN1). MEN1 and CDC73 mutations accounted for 13% and 7% of the FIHP cohort, respectively. A CDKN1B mutation was identified in one F-MEN1. Two AIP variants of unknown significance were detected in two MEN1-negative S-MEN1. A MEN1 positive test best predicted the onset of all three major MEN1-related manifestations or parathyroid and gastro-entero-pancreatic tumors during follow-up. A comparison between the clinical characteristics of F and S-MEN1 showed a higher prevalence of a single parathyroid disease and pituitary tumors in sporadic compared to familial MEN1 patients. No significant correlation was found between the type and location of MEN1 mutations and the clinical phenotype. Since all MEN1 mutation positive sporadic patients had a phenotype resembling that of familial MEN1 (multiglandular parathyroid hyperplasia, a prevalence of gastro-entero-pancreatic tumors and/or the classic triad) we might hypothesize that a subset of the sporadic MEN1 mutation-negative patients could represent an incidental coexistence of sporadic primary hyperparathyroidism and pituitary tumors or a MEN1 phenocopy, in our cohort, as in most cases described in the literature. PMID- 29036197 TI - Morphometric measurements of systemic atherosclerosis and visceral fat: Evidence from an autopsy study. AB - BACKGROUND: Morphometric measurements of systemic atherosclerosis and direct quantification of visceral fat are only possible using materials from autopsy studies. However, the few autopsy studies that have investigated the association of visceral fat with atherosclerosis had small sample sizes and focused on coronary arteries of young or middle-aged White subjects. We aimed to investigate the association of pericardial fat (PF) and abdominal visceral fat (AVF) with atherosclerosis in the aorta, coronary, carotid, and cerebral arteries in a large autopsy study. MATERIALS AND METHODS: We evaluated deceased subjects aged 30 years or above. We dissected and weighted the PF and the AVF and evaluated the atherosclerotic burden in the aorta, as well as the carotid, coronary, and cerebral arteries using morphometric measurements. We also investigated the interaction of PF and AVF with age regarding the atherosclerotic burden. RESULTS: The mean age of the 240 included subjects was 64.8+/-15.3 years, and 63% was male. Greater PF was associated with a higher degree of aortic atherosclerosis after adjusting for confounding variables (coefficient = 4.39, 95% CI = 0.83; 7.94, p = 0.02). Greater AVF was associated with a higher coronary stenosis index (coefficient = 1.49, 95% CI = 0.15; 2.83, p = 0.03) and a greater number of coronary plaques (coefficient = 0.71, 95% CI = 0.24; 1.19, p = 0.003). We did not find an association of PF or AVF with carotid or cerebral atherosclerotic burden. We found a significant interaction of AVF (coefficient = -0.08; 95% CI = -0.14; 0.02, p = 0.009) and PF (coefficient = -0.87, 95% CI = -1.70; -0.04, p = 0.04) with age regarding carotid artery atherosclerotic burden. CONCLUSIONS: Greater AVF was associated with greater atherosclerotic burden and extent in coronary arteries, while greater PF correlated with a higher degree of atherosclerosis in the aorta. PMID- 29036199 TI - The acute physiological stress response to driving: A systematic review. AB - BACKGROUND: The experience of driving has been suggested to be detrimental to health. One hypothesis is that each exposure elicits an acute stress response, and that repeated exposures may act as a chronic stressor. OBJECTIVE: The aim of this review is to evaluate and synthesise the evidence on whether driving elicits an acute physiological stress response. METHODS: Electronic databases, including CINAHL, PsycINFO and Medline, were searched for original articles written in English from database inception until March 2016. The inclusion criteria of this review included a quantitative examination of an acute physiological stress response to driving, in either on-road or simulated settings, compared to a comparison or control condition. This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting criteria. RESULTS: A total of 27,295 abstracts were screened and 28 full-text manuscripts retrieved. Of these, seven articles met the inclusion criteria including four simulator studies and three on-road studies. All suggested a significant change in at least one physiological outcome, but the strongest evidence was for increases in urine catecholamine and cortisol after driving for long hours on road; results on other outcomes are limited by the small number of studies or inconsistent findings. CONCLUSIONS: Overall, these studies provided moderate evidence to suggest that driving for long hours elicits a stress response over an extended period of time. There is insufficient evidence that driving for a shorter period of time elicits an acute stress response, especially in real, on road tasks. However, the limited number of studies, small sample sizes, heterogeneity in study objectives, methodologies and physiological outcomes limit conclusions. Future studies could be improved by recruiting a larger sample, utilizing modern stress markers such as heart rate variability, and primarily focusing on the acute physiological stress response to on-road driving. PMID- 29036198 TI - The homeodomain-interacting protein kinase HPK-1 preserves protein homeostasis and longevity through master regulatory control of the HSF-1 chaperone network and TORC1-restricted autophagy in Caenorhabditis elegans. AB - An extensive proteostatic network comprised of molecular chaperones and protein clearance mechanisms functions collectively to preserve the integrity and resiliency of the proteome. The efficacy of this network deteriorates during aging, coinciding with many clinical manifestations, including protein aggregation diseases of the nervous system. A decline in proteostasis can be delayed through the activation of cytoprotective transcriptional responses, which are sensitive to environmental stress and internal metabolic and physiological cues. The homeodomain-interacting protein kinase (hipk) family members are conserved transcriptional co-factors that have been implicated in both genotoxic and metabolic stress responses from yeast to mammals. We demonstrate that constitutive expression of the sole Caenorhabditis elegans Hipk homolog, hpk-1, is sufficient to delay aging, preserve proteostasis, and promote stress resistance, while loss of hpk-1 is deleterious to these phenotypes. We show that HPK-1 preserves proteostasis and extends longevity through distinct but complementary genetic pathways defined by the heat shock transcription factor (HSF-1), and the target of rapamycin complex 1 (TORC1). We demonstrate that HPK-1 antagonizes sumoylation of HSF-1, a post-translational modification associated with reduced transcriptional activity in mammals. We show that inhibition of sumoylation by RNAi enhances HSF-1-dependent transcriptional induction of chaperones in response to heat shock. We find that hpk-1 is required for HSF-1 to induce molecular chaperones after thermal stress and enhances hormetic extension of longevity. We also show that HPK-1 is required in conjunction with HSF-1 for maintenance of proteostasis in the absence of thermal stress, protecting against the formation of polyglutamine (Q35::YFP) protein aggregates and associated locomotory toxicity. These functions of HPK-1/HSF-1 undergo rapid down-regulation once animals reach reproductive maturity. We show that HPK-1 fortifies proteostasis and extends longevity by an additional independent mechanism: induction of autophagy. HPK-1 is necessary for induction of autophagosome formation and autophagy gene expression in response to dietary restriction (DR) or inactivation of TORC1. The autophagy-stimulating transcription factors pha 4/FoxA and mxl-2/Mlx, but not hlh-30/TFEB or the nuclear hormone receptor nhr-62, are necessary for extended longevity resulting from HPK-1 overexpression. HPK-1 expression is itself induced by transcriptional mechanisms after nutritional stress, and post-transcriptional mechanisms in response to thermal stress. Collectively our results position HPK-1 at a central regulatory node upstream of the greater proteostatic network, acting at the transcriptional level by promoting protein folding via chaperone expression, and protein turnover via expression of autophagy genes. HPK-1 therefore provides a promising intervention point for pharmacological agents targeting the protein homeostasis system as a means of preserving robust longevity. PMID- 29036200 TI - The effect of the pathological V72I, D109N and T190M missense mutations on the molecular structure of alpha-dystroglycan. AB - Dystroglycan (DG) is a highly glycosylated protein complex that links the cytoskeleton with the extracellular matrix, mediating fundamental physiological functions such as mechanical stability of tissues, matrix organization and cell polarity. A crucial role in the glycosylation of the DG alpha subunit is played by its own N-terminal region that is required by the glycosyltransferase LARGE. Alteration in this O-glycosylation deeply impairs the high affinity binding to other extracellular matrix proteins such as laminins. Recently, three missense mutations in the gene encoding DG, mapped in the alpha-DG N-terminal region, were found to be responsible for hypoglycosylated states, causing congenital diseases of different severity referred as primary dystroglycanopaties.To gain insight on the molecular basis of these disorders, we investigated the crystallographic and solution structures of these pathological point mutants, namely V72I, D109N and T190M. Small Angle X-ray Scattering analysis reveals that these mutations affect the structures in solution, altering the distribution between compact and more elongated conformations. These results, supported by biochemical and biophysical assays, point to an altered structural flexibility of the mutant alpha-DG N terminal region that may have repercussions on its interaction with LARGE and/or other DG-modifying enzymes, eventually reducing their catalytic efficiency. PMID- 29036201 TI - Impact of social separation during pregnancy on the manifestation of defensive behaviors related to generalized anxiety and panic throughout offspring development. AB - The multiple insecurities, anatomical, physiological and psychological changes arising from the gestational period can generate an overload of stress in the mother and cause disturbances in the offspring, affecting it throughout its development. The existing analysis linking prenatal stress and offspring's anxiety have divergent results, being limited as to gestational week, type of stressor and age of progeny's assessment. Social separation has been described as a stressor that causes increase in anxiety. Thus, the present study evaluated the effects of social separation applied in one of the three gestational weeks of rat dams on the manifestation of the defensive behaviors related to generalized anxiety disorder and panic in the Elevated T Maze of the male progeny in three stages of development (1, 3 or 6 months of life). It was found, in the offspring of grouped (control) dams, increased behaviors associated with generalized anxiety disorder and a reduction of panic-like behaviors throughout development. For animals whose dams were socially separated during pregnancy, the most critical period of exposure was the 2nd gestational week, which affected the acquisition of aversive memory, demonstrated by the impairment on learning of avoidances of the offspring in all ages evaluated. Stressor exposure in this week also increased the avoidances, related to generalized anxiety of progeny in the 1st month and decreased escapes, related to panic in the 3rd month of life and, at the age of 6 months old, an inverse situation, with the reduction of the defensive behaviors associated to generalized anxiety disorder. The results show that, when assessing effects of prenatal stress on the manifestation of anxiety, not only the period of exposure is important, but also the age of offspring assessed. PMID- 29036203 TI - Cooling the lower abdomen to reduce postpartum blood loss: A randomized controlled trial. AB - BACKGROUND: Cooling the lower abdomen is one of the Japanese traditional non pharmacological prophylactic managements for postpartum hemorrhage. This study aimed to evaluate the effectiveness of cooling the lower abdomen in reducing postpartum blood loss compared with no intervention. In both cases, women delivered vaginally without prophylactic oxytocin in the third stage of labor. METHODS: In this randomized controlled trial, the lower abdomen was cooled by placement of an 8.6 degrees C icepack during the first 2 h after placental delivery. The primary outcome was measured as the total blood loss within 2 h after delivery. This study had 80% power at the two tails of 5% significance level to detect the mean difference (MD, 70 g) in total blood loss within 2 h after delivery between the two groups. The sample size was calculated as 144 women (72 women per group). RESULTS: Between January and May 2016, 160 women were randomly assigned to the intervention group (cooling the lower abdomen, n = 81) or the control group (n = 79). Baseline characteristics were similar between groups, with the exception of mean blood loss during the third stage of labor. The primary outcome was not reduced by cooling, compared with no intervention (mean blood loss, 513.3 vs. 478.1 g, respectively; MD = 35.2 g; 95% confidence interval = -65.3-135.7). No adverse events occurred; however, seven (8.7%) women in the intervention group declined to continue cooling the lower abdomen because of discomfort. CONCLUSION: Compared with the control group, cooling the lower abdomen did not reduce the total amount of blood loss up to 2 h after delivery. TRIAL REGISTRATION: UMIN-CTR UMIN000019834. PMID- 29036202 TI - Toxoplasma gondii induces FAK-Src-STAT3 signaling during infection of host cells that prevents parasite targeting by autophagy. AB - Targeting of Toxoplasma gondii by autophagy is an effective mechanism by which host cells kill the protozoan. Thus, the parasite must avoid autophagic targeting to survive. Here we show that the mammalian cytoplasmic molecule Focal Adhesion Kinase (FAK) becomes activated during invasion of host cells. Activated FAK appears to accompany the formation of the moving junction (as assessed by expression the parasite protein RON4). FAK activation was inhibited by approaches that impaired beta1 and beta3 integrin signaling. FAK caused activation of Src that in turn mediated Epidermal Growth Factor Receptor (EGFR) phosphorylation at the unique Y845 residue. Expression of Src-resistant Y845F EGFR mutant markedly inhibited ROP16-independent activation of STAT3 in host cells. Activation of FAK, Y845 EGFR or STAT3 prevented activation of PKR and eIF2alpha, key stimulators of autophagy. Genetic or pharmacologic inhibition of FAK, Src, EGFR phosphorylation at Y845, or STAT3 caused accumulation of the autophagy protein LC3 and LAMP-1 around the parasite and parasite killing dependent on autophagy proteins (ULK1 and Beclin 1) and lysosomal enzymes. Parasite killing was inhibited by expression of dominant negative PKR. Thus, T. gondii activates a FAK->Src->Y845-EGFR->STAT3 signaling axis within mammalian cells, thereby enabling the parasite to survive by avoiding autophagic targeting through a mechanism likely dependent on preventing activation of PKR and eIF2alpha. PMID- 29036204 TI - Metabolic phenotyping in the mouse model of urinary tract infection shows that 3 hydroxybutyrate in plasma is associated with infection. AB - Urinary tract infection is one of the most common bacterial infections worldwide. Current diagnosis of urinary tract infection chiefly relies on its clinical presentation, urine dipstick tests and urine culture. Small molecules found in bio-fluids related with both infection and recovery would facilitate diagnosis and management of UTI. Mass spectrometry-based fingerprinting of plasma and urine at 3 time points, pre-infection (t = -24h), infection (t = 24h) and post 3-day treatment (t = 112h), were acquired in the following four groups: mice which were healthy, infected but not treated, infected and treated with ciprofloxacin, and infected and treated with Relinqing(r) granules (n = 6 per group). A metabolomics workflow including multivariate analysis and ROC regression was employed to select metabolic features that correlated with UTI and its treatment. Circa 4,000 molecular features were acquired for each sample. The small acid 3 hydroxybutyrate in plasma was found to be differentiated for urinary tract infection, with an area under the curve = 0.97 (95% confidence interval: 0.93 1.00, accuracy = 0.91, sensitivity = 0.92 and specificity = 0.91). The level of 3 hydroxybutyrate in plasma was depleted after infection with a fold change of -22 (q < 0.0001). Correlation between plasma 3-hydroxybutyrate and urine bacterial number in all groups and time points was r = -0.753 (p < 0.0001). The findings show that 3-hydroxybutyrate is depleted in blood and strongly associated with UTI at both infection and post-treatment stage in a UTI mouse model. Further work is envisaged to assess the clinical potential of blood tests to assist with UTI management. PMID- 29036205 TI - Characterization of microRNAs of Beta macrocarpa and their responses to Beet necrotic yellow vein virus infection. AB - Plant microRNAs (miRNAs) are a class of non-coding RNAs that play important roles in plant development, defense, and symptom development. Here, 547 known miRNAs representing 129 miRNA families, and 282 potential novel miRNAs were identified in Beta macrocarpa using small RNA deep sequencing. A phylogenetic analysis was performed, and 8 Beta lineage-specific miRNAs were identified. Through a differential expression analysis, miRNAs associated with Beet necrotic yellow vein virus (BNYVV) infection were identified and confirmed using a microarray analysis and stem-loop RT-qPCR. In total, 103 known miRNAs representing 38 miRNA families, and 45 potential novel miRNAs were differentially regulated, with at least a two-fold change, in BNYVV-infected plants compared with that of the mock inoculated control. Targets of these differentially expressed miRNAs were also predicted by degradome sequencing. These differentially expressed miRNAs were involved in hormone biosynthesis and signal transduction pathways, and enhanced axillary bud development and plant defenses. This work is the first to describe miRNAs of the plant genus Beta and may offer a reference for miRNA research in other species in the genus. It provides valuable information on the pathogenicity mechanisms of BNYVV. PMID- 29036206 TI - Risk characterization of hospitalizations for mental illness and/or behavioral disorders with concurrent heat-related illness. AB - BACKGROUND: Many studies have found significant associations between high ambient temperatures and increases in heat-related morbidity and mortality. Several studies have demonstrated that increases in heat-related hospitalizations are elevated among individuals with diagnosed mental illnesses and/or behavioral disorders (MBD). However, there are a limited number of studies regarding risk factors associated with specific mental illnesses that contribute, at least in part, to heat-related illnesses (HRI) in the United States. OBJECTIVE: To identify and characterize individual and environmental risk factors associated with MBD hospitalizations with a concurrent HRI diagnosis. METHODS: This study uses hospitalization data from the Nationwide Inpatient Sample (2001-2010). Descriptive analyses of primary and secondary diagnoses of MBDs with an HRI were examined. Risk ratios (RR) were calculated from multivariable models to identify risk factors for hospitalizations among patients with mental illnesses and/or behavioral disorders and HRI. RESULTS: Nondependent alcohol/drug abuse, dementia, and schizophrenia were among the disorders that were associated with increased frequency of HRI hospitalizations among MBD patients. Increased risk of MBD hospitalizations with HRI was observed for Males (RR, 3.06), African Americans (RR, 1.16), Native Americans (RR, 1.70), uninsured (RR, 1.92), and those 40 years and older, compared to MBD hospitalizations alone. CONCLUSIONS: Previous studies outside the U.S. have found that dementia and schizophrenia are significant risk factors for HRI hospitalizations. Our results suggest that hospitalizations among substance abusers may also be an important risk factor associated with heat morbidity. Improved understanding of these relative risks could help inform future public health strategies. PMID- 29036207 TI - Little Ice Age climatic erraticism as an analogue for future enhanced hydroclimatic variability across the American Southwest. AB - The American Southwest has experienced a series of severe droughts interspersed with strong wet episodes over the past decades, prompting questions about future climate patterns and potential intensification of weather disruptions under warming conditions. Here we show that interannual hydroclimatic variability in this region has displayed a significant level of non-stationarity over the past millennium. Our tree ring-based analysis of past drought indicates that the Little Ice Age (LIA) experienced high interannual hydroclimatic variability, similar to projections for the 21st century. This is contrary to the Medieval Climate Anomaly (MCA), which had reduced variability and therefore may be misleading as an analog for 21st century warming, notwithstanding its warm (and arid) conditions. Given past non-stationarity, and particularly erratic LIA, a 'warm LIA' climate scenario for the coming century that combines high precipitation variability (similar to LIA conditions) with warm and dry conditions (similar to MCA conditions) represents a plausible situation that is supported by recent climate simulations. Our comparison of tree ring-based drought analysis and records from the tropical Pacific Ocean suggests that changing variability in El Nino Southern Oscillation (ENSO) explains much of the contrasting variances between the MCA and LIA conditions across the American Southwest. Greater ENSO variability for the 21st century could be induced by a decrease in meridional sea surface temperature gradient caused by increased greenhouse gas concentration, as shown by several recent climate modeling experiments. Overall, these results coupled with the paleo-record suggests that using the erratic LIA conditions as benchmarks for past hydroclimatic variability can be useful for developing future water-resource management and drought and flood hazard mitigation strategies in the Southwest. PMID- 29036208 TI - Transitioning couple's voluntary HIV counseling and testing (CVCT) from stand alone weekend services into routine antenatal and VCT services in government clinics in Zambia's two largest cities. AB - INTRODUCTION: Most HIV infections in Africa are acquired by married/cohabiting adults and WHO recommends couple's voluntary HIV counseling and testing (CVCT) for prevention. The handover from NGO-sponsored weekend CVCT to government sponsored services in routine weekday antenatal care (ANC) and individual voluntary testing and counseling (VCT) services in Zambia's two largest cities from 2009-2015 is described. METHODS: Government clinic counselors were trained to provide CVCT, and along with community health workers they promoted CVCT services in their clinic and surrounding areas. When client volume exceeded the capacity of on-duty staff in ANC and VCT, non-governmental organization (NGO) subsidies were offered for overtime pay. RESULTS: Implementation of routine CVCT services varied greatly by clinic and city. The 12 highest volume clinics were examined further, while 13 clinics had CVCT numbers that were too low to warrant further investigation. In Lusaka, the proportion of pregnant women whose partners were tested rose from 2.6% in 2009 to a peak of 26.2% in 2012 and 24.8% in 2015. Corresponding reports in Ndola were 2.0% in 2009, 17.0% in 2012 and 14.5% in 2015. Obstacles to CVCT included: limited space and staffing, competing priorities, record keeping not adapted for couples, and few resources for promotion and increasing male involvement. Conflicting training models for 'partner testing' with men and women separately vs. CVCT with joint post-test counseling led to confusion in reporting to district health authorities. DISCUSSION: A focused and sustained effort will be required to reach a meaningful number of couples with CVCT to prevent heterosexual and perinatal HIV transmission. Establishing targets and timelines, funding for dedicated and appropriately trained staff, adoption of standardized data recording instruments with couple-level indicators, and expansion of community and clinic-based promotions using proven models are recommended. PMID- 29036209 TI - Understanding differences in conception and abortion rates among under-20 year olds in Britain and France: Examining the contribution of social disadvantage. AB - OBJECTIVES: Socioeconomic status has been shown to be associated with sexual activity, contraceptive-use, pregnancy and abortion among young people. Less is known about whether the strength of the association differs for each outcome, between men and women, or cross-nationally. We investigate this using contemporaneous national probability survey data from Britain and France. METHODS: Data were analysed for 17-29 year-olds in Britain's third National Survey of Sexual Attitudes and Lifestyles (Natsal-3, n = 5959) undertaken 2010 2012, and the 2010 French Fertility, Contraception and Sexual Dysfunction survey (FECOND, n = 3027). For each country, we estimated the gender-specific prevalence of sex before-16, contraceptive-use, conception before-20, and abortion in the event of conception, and used logistic regression to examine associations between two measures of socioeconomic status-educational-level and parental socioeconomic group-and each outcome. We tested for interactions between socioeconomic characteristics and country, and socioeconomic characteristics and gender, for each outcome. RESULTS: For each outcome, Britain and France differed with regard to prevalence but associations with socioeconomic characteristics were similar. Respondents of higher educational level, and, less consistently, with parents from higher socioeconomic-groups, were less likely to report sex before-16 (Britain, men: adjusted OR (aOR) 0.5, women: aOR 0.5; France, men: aOR 0.5, women: aOR 0.5), no contraception at first sex (Britain, men: aOR 0.4, women: aOR 0.6; France, men: aOR 0.4, women: aOR 0.4), pregnancy before-20 (Britain: aOR 0.3; France: aOR 0.1), and in Britain, a birth rather than an abortion in the event of conception (Britain: aOR 3.1). We found no strong evidence of variation in the magnitude of the associations with socioeconomic characteristics by country or gender. CONCLUSIONS: Population level differences in conception and abortion rates between the two countries may partly be driven by the larger proportion of the population that is disadvantaged in Britain. This research highlights the role intra-country comparisons can play in understanding young people's sexual and reproductive behaviours. PMID- 29036210 TI - Isothermal amplification of environmental DNA (eDNA) for direct field-based monitoring and laboratory confirmation of Dreissena sp. AB - Loop-mediated isothermal amplification (LAMP) of aquatic invasive species environmental DNA (AIS eDNA) was used for rapid, sensitive, and specific detection of Dreissena sp. relevant to the Great Lakes (USA) basin. The method was validated for two uses including i) direct amplification of eDNA using a hand filtration system and ii) confirmation of the results after DNA extraction using a conventional thermal cycler run at isothermal temperatures. Direct amplification eliminated the need for DNA extraction and purification and allowed detection of target invasive species in grab or concentrated surface water samples, containing both free DNA as well as larger cells and particulates, such as veligers, eggs, or seeds. The direct amplification method validation was conducted using Dreissena polymorpha and Dreissena bugensis and uses up to 1 L grab water samples for high target abundance (e.g., greater than 10 veligers (larval mussels) per L for Dreissena sp.) or 20 L samples concentrated through 35 MUm nylon screens for low target abundance, at less than 10 veligers per liter water. Surface water concentrate samples were collected over a period of three years, mostly from inland lakes in Michigan with the help of a network of volunteers. Field samples collected from 318 surface water locations included i) filtered concentrate for direct amplification validation and ii) 1 L grab water sample for eDNA extraction and confirmation. Though the extraction-based protocol was more sensitive (resulting in more positive detections than direct amplification), direct amplification could be used for rapid screening, allowing for quicker action times. For samples collected between May and August, results of eDNA direct amplification were consistent with known presence/absence of selected invasive species. A cross-platform smartphone application was also developed to disseminate the analyzed results to volunteers. Field tests of the direct amplification protocol using a portable device (Gene-Z) showed the method could be used in the field to obtain results within one hr (from sample to result). Overall, the direct amplification has the potential to simplify the eDNA based monitoring of multiple aquatic invasive species. Additional studies are warranted to establish quantitative correlation between eDNA copy number, veliger, biomass or organismal abundance in the field. PMID- 29036211 TI - Orally administered Taenia solium Calreticulin prevents experimental intestinal inflammation and is associated with a type 2 immune response. AB - Intestinal helminth antigens are inducers of type 2 responses and can elicit regulatory immune responses, resulting in dampened inflammation. Several platyhelminth proteins with anti-inflammatory activity have been reported. We have identified, cloned and expressed the Taenia solium calreticulin (rTsCRT) and shown that it predominantly induces a type 2 response characterized by IgG1, IL-4 and IL-5 production in mice. Here, we report the rTsCRT anti-inflammatory activity in a well-known experimental colitis murine model. Mice were orally immunized with purified rTsCRT and colitis was induced with trinitrobenzene sulfonic acid (TNBS). Clinical signs of disease, macroscopic and microscopic tissue inflammation, cytokine production and micronuclei formation, as a marker of genotoxicity, were measured in order to assess the effect of rTsCRT immunization on experimentally induced colitis. rTsCRT administration prior to TNBS instillation significantly reduced the inflammatory parameters, including the acute phase cytokines TNF-alpha, IL-1beta and IL-6. Dampened inflammation was associated with increased local expression of IL-13 and systemic IL-10 and TGF beta production. Genotoxic damage produced by the inflammatory response was also precluded. Our results show that oral treatment with rTsCRT prevents excessive TNBS-induced inflammation in mice and suggest that rTsCRT has immunomodulatory properties associated with the expression of type 2 and regulatory cytokines commonly observed in other helminths. PMID- 29036212 TI - Dietary patterns and mental health after myocardial infarction. AB - BACKGROUND: Diet has been associated with better mental health in general populations, but less is known on this association in patients with a history of coronary heart disease. The objective of this study is to examine the cross sectional associations between dietary patterns and mental health in elderly patients with a history of myocardial infarction. METHODS: Data were drawn from the final assessment of the Alpha Omega cohort that monitored patients with a history of myocardial infarction (age range 60-80 years). 2171 patients with complete data for diet and mental health were included in this study. Diet was assessed with the 203-item Food Frequency Questionnaire, and subsequently categorized into two scores: the Dutch Healthy Nutrient and Food Score (DHNaFS) and the Dutch Undesirable Nutrient and Food Score (DUNaFS). Depressive symptoms, assessed with the Geriatric Depression Scale (GDS-15), and dispositional optimism, assessed with the 4-item questionnaire (4Q), were cross-sectionally analyzed in relation to dietary patterns using linear regression analysis. RESULTS: Patients were on average 72.2 years old and 79.5% were male. The DHNaFS score was associated with less depressive symptoms and higher dispositional optimism (beta = -0.108; P<0.001; and beta = 0.074; P<0.001), whereas no associations were found with the DUNaFS score. Particularly, consumption of vegetables, fruits, whole grains, fish, and low fat-dairy were associated with less depressive symptoms and higher optimism. Similar associations were found when analyzing the association between average DHNaFS score over the preceding 41 months with depression beta = -0.085; P<0.001) and higher dispositional optimism (beta = 0.084; P<0.001). CONCLUSIONS: A healthy dietary pattern, in particular a higher consumption of vegetables, fruit, whole grains, fish and low-fat dairy, was associated with less depressive symptoms and higher optimism. However, given the cross-sectional nature of our analyses, our findings may also be explained by more optimistic participants making healthier food choices. Therefore, future prospective or interventions studies are needed to establish the direction of causality of this association. TRIAL REGISTRATION: ClinicalTrials.gov NCT03192410. PMID- 29036213 TI - The value of real-time continuous glucose monitoring in premature infants of diabetic mothers. AB - To determine the feasibility of using a real-time continuous glucose monitoring system (RTGMS) in intensive care units, our study focus on preterm infants with diabetic mothers owing to their high risk of blood sugar abnormalities. Thirty preterm babies (M = 15 and F = 15; <= 36 week gestation age) were studied from within 72 hours of delivery. These babies were admitted to the newborn intensive care and were further categorized into groups based on whether their mothers with or without diabetic mellitus. Blood sugar levels were monitored by both RTGMS and the traditional intermittent arterial line (A-Line) glucose method. Continuous glucose monitoring were well tolerated in 30 infants. There were good consistency between RTGMS and A-Line glucose concentration measurements. Of the preterm infants, 33.33% experienced abnormal glucose levels (hypoglycemia or hyperglycemia) between the checkpoint intervals of the intermittent A-Line blood sugar measurements. RTGM showed advantages with regards to reduced pain, greater comfort, the provision of real-time information, high sensitivity (94.59%) and specificity (97.87%) in discovering abnormalities of blood sugar, which are especially valuable for premature infants of diabetic mothers. RTGMS is comparable to A-line measurement for identifying fluctuations in blood glucose in premature infants. RTGMS detects more episodes of abnormal glucose concentration than intermittent A-line blood glucose measurement. High risk infants, especially premature infants with diabetic mothers, should receive more intensive blood sugar level checks by using continuous RTGMS. PMID- 29036214 TI - The fate of endemic insects of the Andean region under the effect of global warming. AB - Three independent but complementary lines of research have provided evidence for the recognition of refugia: paleontology, phylogeography and species distributional modelling (SDM). SDM assesses the ecological requirements of a species based on its known occurrences and enables its distribution to be projected on past climatological reconstructions. One advantage over the other two approaches is that it provides an explicit link to environment and geography, thereby enabling the analysis of a large number of taxa in the search for more general refugia patterns. We propose a methodology for using SDM to recognize biogeographical patterns of endemic insects from Southern South America. We built species distributional models for 59 insect species using Maxent. The species analyzed in the study have narrow niche breadth and were classified into four assemblages according to the ecoregion they inhabit. Models were built for the Late Pleistocene, Mid-Holocene and Present. Through the procedure developed for this study we used the models to recognize: Late Pleistocene refugia; areas with high species richness during all three periods; climatically constant areas (in situ refugia); consistent patterns among in situ refugia, Pleistocene refugia and current distribution of endemic species. We recognized two adjacent Pleistocene refugia with distinct climates; four in situ refugia, some of which are undergoing a process of fragmentation and retraction or enlargement. Interestingly, we found a congruent pattern among in situ refugia, Pleistocene refugia and endemic species. Our results seem to be consistent with the idea that long-term climate stability is known to have a key role in promoting persistence of biodiversity in an area. Our Pleistocene and in situ refugia are consistent with refugia identified in studies focusing on different taxa and applying other methodologies, showing that the method developed can be used to identify such areas and prove their importance for conservation. PMID- 29036215 TI - Reduction of in utero lead exposures in South African populations: Positive impact of unleaded petrol. AB - BACKGROUND: Prenatal exposure to lead (Pb) has been shown to have negative and irreversible health impacts on foetal and early childhood development, affecting morbidity and mortality in adulthood. This study aimed to assess in utero Pb exposure, examine birth outcomes, and identify confounding factors in the large cohort of South African population, following the legislated removal of Pb from petrol. METHODS: Lead was measured in the maternal blood, urine and cord blood using Inductive Coupled Plasma Mass spectrometry (ICP-MS). The statistical analyses included Spearman's correlation, Wilcoxon rank sum (Mann Whitney), Kruskal-Wallis rank tests and multivariate linear regression. RESULTS: Overall, the geometric mean (GM) of Pb in maternal blood (PbB) was 1.32 MUg/dL (n = 640; 95% CI, 1.24-1.40). In the subset cohort, the GM of paired maternal PbB and cord blood (PbC) was 1.73 MUg/dL (n = 350; 95% CI, 1.60-1.86) and 1.26 MUg/dL (n = 317; 95% CI, 1.18-1.35), respectively with a positive correlation between the log PbB and the log PbC (rho = 0.65, p = <0.001). Birth outcomes showed geographical differences in the gestational age (p<0.001), birth length (p = 0.028) and head circumference (p<0.001), Apgar score at 5 min (p<0.001) and parity (p<0.002). In female neonates, a positive association was found between PbC and head circumference (rho = 0.243; p<0.016). The maternal PbB levels were positively correlated with race, educational status, water sources, cooking fuels and use of pesticides at home. CONCLUSIONS: This study has demonstrated not only the positive impact that the introduction of unleaded petrol and lead-free paint has had on in utero exposure to Pb in South Africa, but has also contributed new data on the topic, in a region where such data and scientific investigations in this field are lacking. Future research should evaluate if similar effects can be detected in young children and the adult population. PMID- 29036216 TI - Herpesviruses in etiopathogenesis of aggressive periodontitis: A meta-analysis based on case-control studies. AB - OBJECTIVE: Previous studies have found that herpesviruses are associated with aggressive periodontitis (AgP). However, these findings are controversial. This meta-analysis was aimed at clarifying the association between herpesviruses and AgP. METHODS: We identified eligible case-control studies evaluating the association between herpesviruses and AgP from PubMed and Embase databases in October 2015. Original data were extracted and quality assessment was done. Overall odds ratios (ORs) and 95% confidence intervals (CIs) were estimated. Random-effects model was determined. The stability was evaluated by sensitivity analysis. Finally, Egger's funnel plot was used to investigate the publication bias. RESULTS: Twelve case-control studies involving 322 patients and 342 controls were included in the present meta-analysis. The included case-control studies were assessed as high quality. The quantitative synthesis results for Epstein-Barr virus (EBV) showed significance (10 studies: p = 0.0008, OR = 6.11, 95% CI = 2.13-17.51); nevertheless, evidence of publication bias for EBV was considerable (EBV: Egger's test, p<0.001). Human cytomegalovirus (HCMV) and Herpes simplex virus type 1 (HSV-1) had significant association with AgP (12 studies for HCMV: p = 0.009, OR = 3.63, 95% CI = 2.15-6.13; 4 studies for HSV-1: p<0.001, OR = 19.19, 95% CI = 4.16-79.06). Sensitivity analyses showed the results yielded consistency, and no significant publication bias was observed for HCMV. The association between Herpes simplex virus type 2 (HSV-2) and AgP was inconclusive (2 studies: p = 0.20, OR = 3.46, 95% CI = 0.51-23.51). CONCLUSION: This meta-analysis suggests that HCMV and HSV-1 are significantly associated with AgP. However, due to the heterogeneity among studies these conclusions should be cautiously interpreted. There is insufficient evidence to draw any conclusion between EBV, HSV-2 and AgP based on the currently limited data. PMID- 29036218 TI - Crystallographic and thermodynamic characterization of phenylaminopyridine bisphosphonates binding to human farnesyl pyrophosphate synthase. AB - Human farnesyl pyrophosphate synthase (hFPPS) catalyzes the production of the 15 carbon isoprenoid farnesyl pyrophosphate. The enzyme is a key regulator of the mevalonate pathway and a well-established drug target. Notably, it was elucidated as the molecular target of nitrogen-containing bisphosphonates, a class of drugs that have been widely successful against bone resorption disorders. More recently, research has focused on the anticancer effects of these inhibitors. In order to achieve increased non-skeletal tissue exposure, we created phenylaminopyridine bisphosphonates (PNP-BPs) that have bulky hydrophobic side chains through a structure-based approach. Some of these compounds have proven to be more potent than the current clinical drugs in a number of antiproliferation assays using multiple myeloma cell lines. In the present work, we characterized the binding of our most potent PNP-BPs to the target enzyme, hFPPS. Co-crystal structures demonstrate that the molecular interactions designed to elicit tighter binding are indeed established. We carried out thermodynamic studies as well; the newly introduced protein-ligand interactions are clearly reflected in the enthalpy of binding measured, which is more favorable for the new PNP-BPs than for the lead compound. These studies also indicate that the affinity of the PNP BPs to hFPPS is comparable to that of the current drug risedronate. Risedronate forms additional polar interactions via its hydroxyl functional group and thus exhibits more favorable binding enthalpy; however, the entropy of binding is more favorable for the PNP-BPs, owing to the greater desolvation effects resulting from their large hydrophobic side chains. These results therefore confirm the overall validity of our drug design strategy. With a distinctly different molecular scaffold, the PNP-BPs described in this report represent an interesting new group of future drug candidates. Further investigation should follow to characterize the tissue distribution profile and assess the potential clinical benefits of these compounds. PMID- 29036219 TI - Correction: Role of mitochondrial DNA damage and dysfunction in veterans with Gulf War Illness. AB - [This corrects the article DOI: 10.1371/journal.pone.0184832.]. PMID- 29036217 TI - "ABC"-The Awareness-Body-Chart: A new tool assessing body awareness. AB - BACKGROUND: Despite the importance of body awareness for health and well-being there is still a lack of valid assessment tools to scan proper body awareness. To respond to the limitations of questionnaires (reading/interpretation problems) the Awareness-Body-Chart (ABC) was designed to assess body awareness by colouring 51 regions according to their awareness. The objective of this study was to investigate the psychometric characteristics of the ABC. METHODS: In a questionnaire-study, 106 students in Graz (79 females, 27 males, age median 21 (IQR 20-23) years) filled in the ABC, furthermore a German body awareness questionnaire "KEKS", and the Beck Depression Inventory II. Factor structure, internal consistency, and retest reliability of the ABC were investigated. Correlations of the ABC with the KEKS and the Beck Depression Inventory II and comparisons of subgroups were conducted. RESULTS: Through factor analyses, 14 factors with clear assignments to body parts could be categorized: cranium, face, cervical/lumbar region, chest/abdomen, back, shoulder, upper arm, lower arm/elbow, hand, genital area, thigh/hip, knee, lower leg, and foot. The 14 body parts and the total score showed acceptable to high Cronbach's alphas (alpha = .64 - .97). The test-retest reliability showed values between rho = .71 and rho = .96. The correlation of the ABC and KEKS (r = .66, p < .001) confirmed validity. Further indications of validity could be seen in comparisons of subgroups and in correlations with the Beck Depression Inventory II. CONCLUSION: The ABC proved good psychometric properties with acceptable to high internal consistency, acceptable to high retest reliability and high construct validity. It is an easy to-use tool for clinical settings and research. The ABC opens new insights into body awareness-patterns of various subgroups. PMID- 29036221 TI - Retraction: Diabetes and Overexpression of proNGF Cause Retinal Neurodegeneration via Activation of RhoA Pathway. PMID- 29036222 TI - Lipid biomarker signatures as tracers for harmful cyanobacterial blooms in the Baltic Sea. AB - The recent proliferation of harmful cyanobacterial blooms (cyanoHABs) in the Baltic and other marginal seas poses a severe threat for the health of infested ecosystems as e.g. the massive export and decay of cyanobacterial biomass facilitates the spread of bottom water hypoxia. There is evidence that cyanoHABs occurred repeatedly in the Baltic Sea but knowledge of their spatiotemporal distribution and the cyanobacteria that contributed to them is limited. In this study, we examined representatives of the major bloom-forming heterocystous cyanobacteria (i.e. Aphanizomenon, Dolichospermum (formerly Anabaena) and Nodularia) to establish lipid fingerprints that allow tracking these environmentally important diazotrophs in the modern and past Baltic Sea. The distribution of normal and mid-chain branched alkanes, fatty acid methyl esters, bacteriohopanepolyols and heterocyst glycolipids permitted a clear chemotaxonomic separation of the different heterocystous cyanobacteria but also indicated a close phylogenetic relationship between representatives of the genera Aphanizomenon and Dolichospermum. Compared to the discontinuous nature of phytoplankton surveys studies, the distinct lipid profiles reported here will allow obtaining detailed spatiotemporal information on the frequency and intensity of Baltic Sea cyanoHABs as well as their community composition using the time-integrated biomarker signatures recorded in surface and subsurface sediments. As heterocystous cyanobacteria of the genera Aphanizomenon, Dolichospermum and Nodularia are generally known to form massive blooms in many brackish as well as lacustrine systems worldwide, the chemotaxonomic markers introduced in this study may allow investigating cyanoHABs in a great variety of contemporary environments from polar to tropical latitudes. PMID- 29036220 TI - Defective replication initiation results in locus specific chromosome breakage and a ribosomal RNA deficiency in yeast. AB - A form of dwarfism known as Meier-Gorlin syndrome (MGS) is caused by recessive mutations in one of six different genes (ORC1, ORC4, ORC6, CDC6, CDT1, and MCM5). These genes encode components of the pre-replication complex, which assembles at origins of replication prior to S phase. Also, variants in two additional replication initiation genes have joined the list of causative mutations for MGS (Geminin and CDC45). The identity of the causative MGS genetic variants strongly suggests that some aspect of replication is amiss in MGS patients; however, little evidence has been obtained regarding what aspect of chromosome replication is faulty. Since the site of one of the missense mutations in the human ORC4 alleles is conserved between humans and yeast, we sought to determine in what way this single amino acid change affects the process of chromosome replication, by introducing the comparable mutation into yeast (orc4Y232C). We find that yeast cells with the orc4Y232C allele have a prolonged S-phase, due to compromised replication initiation at the ribosomal DNA (rDNA) locus located on chromosome XII. The inability to initiate replication at the rDNA locus results in chromosome breakage and a severely reduced rDNA copy number in the survivors, presumably helping to ensure complete replication of chromosome XII. Although reducing rDNA copy number may help ensure complete chromosome replication, orc4Y232C cells struggle to meet the high demand for ribosomal RNA synthesis. This finding provides additional evidence linking two essential cellular pathways DNA replication and ribosome biogenesis. PMID- 29036223 TI - Evaluation of blood-brain barrier function by quotient alpha2 macroglobulin and its relationship with interleukin-6 and complement component 3 levels in neuropsychiatric systemic lupus erythematosus. AB - Although quotient of alpha2 macroglobulin (Qalpha2MG) was previously reported to be useful for the evaluation of blood-brain barrier (BBB) function, it is not commonly used. We therefore evaluated BBB function among the various subsets of neuropsychiatric systemic lupus erythematosus (NPSLE) using quotient Q alpha2MG. Furthermore, we determined the correlation between Q alpha2MG and cerebrospinal (CSF) interleukin (IL)-6 level and quotient complement component 3 (Q C3). To determine intrathecal production of C3, the C3 index (Q C3/Q alpha2MG) was also calculated. Fifty-six patients with SLE were included in this study. Of these, 48 were diagnosed with NPSLE, consisting of 30 diffuse NPSLE patients (acute confusional state (ACS): n = 14, non-ACS: n = 16) and 18 patients with focal NPSLE. CSF IL-6 concentration, and paired serum and CSF levels of alpha2MG and C3, were measured by enzyme-linked immuno solvent assay (ELISA). The Q alpha2MG, Q C3, and C3 index were then calculated. Q alpha2MG, Q C3, and IL-6 concentrations in the CSF were significantly elevated in NPSLE compared with non NPSLE. Among the subsets of NPSLE, significant increases in Q alpha2MG, CSF IL-6, and Q C3 were observed in ACS compared with non-ACS or focal NPSLE. There was a positive correlation between CSF IL-6 level and Q alpha2MG, as well as between Q C3 and Q alpha2MG, in diffuse NPSLE. There were no significant differences in C3 index between NPSLE and non-NPSLE, as well as among the subgroups of NPSLE. Our study suggests that BBB disruption is present in ACS, and elevated levels of IL-6 and C3 in CSF in diffuse NPSLE, especially in ACS, might result from their entry to the CSF from the systemic circulation through the damaged BBB, as well as increased intrathecal production. Furthermore, Q alpha2MG might be useful for the evaluation of BBB integrity. PMID- 29036224 TI - Immortalized porcine mesenchymal cells derived from nasal mucosa, lungs, lymph nodes, spleen and bone marrow retain their stemness properties and trigger the expression of siglec-1 in co-cultured blood monocytic cells. AB - Mesenchymal stromal cells have been isolated from different sources. They are multipotent cells capable of differentiating into many different cell types, including osteocytes, chondrocytes and adipocytes. They possess a therapeutic potential in the management of immune disorders and the repair of damaged tissues. Previous work in our laboratory showed an increase of the percentages of CD172a+, CD14+, CD163+, Siglec-1+, CD4+ and CD8+ hematopoietic cells, when co cultured with immortalized mesenchymal cells derived from bone marrow. The present work aimed to demonstrate the stemness properties of SV40-immortalized mesenchymal cells derived from nasal mucosa, lungs, spleen, lymph nodes and red bone marrow and their immunomodulatory effect on blood monocytes. Mesenchymal cells from nasal mucosa, lungs, spleen, lymph nodes and red bone marrow were isolated and successfully immortalized using simian virus 40 large T antigen (SV40LT) and later, co-cultured with blood monocytes, in order to examine their differentiation stage (expression of Siglec-1). Flow cytometric analysis revealed that the five mesenchymal cell lines were positive for mesenchymal cell markers CD105, CD44, CD90 and CD29, but lacked the expression of myeloid cell markers CD16 and CD11b. Growth analysis of the cells demonstrated that bone marrow derived-mesenchymal cells proliferated faster compared with those derived from the other tissues. All five mesenchymal cell lines co-cultured with blood monocytes for 1, 2 and 7 days triggered the expression of siglec-1 in the monocytes. In contrast, no siglec-1+ cells were observed in monocyte cultures without mesenchymal cell lines. Mesenchymal cells isolated from nasal mucosa, lungs, spleen, lymph nodes and bone marrow were successfully immortalized and these cell lines retained their stemness properties and displayed immunomodulatory effects on blood monocytes. PMID- 29036225 TI - Human plasma-derived C1 esterase inhibitor concentrate has limited effect on house dust mite-induced allergic lung inflammation in mice. AB - C1 esterase inhibitor (C1-INH) can inhibit multiple pathways (complement, contact kinin, coagulation, and fibrinolysis) that are all implicated in the pathophysiology of asthma. We explored the effect of human plasma-derived C1-INH on allergic lung inflammation in a house dust mite (HDM) induced asthma mouse model by daily administration of C1-INH (15 U) during the challenge phase. NaCl and HDM exposed mice had comparable plasma C1-INH levels, while bronchoalveolar lavage fluid (BALF) levels were increased in HDM exposed mice coinciding with slightly reduced activation of complement (C5a). C1-INH treatment reduced Th2 response and enhanced HDM-specific IgG1. Influx of eosinophils in BALF or lung, pulmonary damage, mucus production, procoagulant response or plasma leakage in BALF was similar in both groups. In conclusion, C1-INH dampens Th2 responses during HDM induced allergic lung inflammation. PMID- 29036226 TI - Structural plasticity of the N-terminal capping helix of the TPR domain of kinesin light chain. AB - Kinesin1 plays a major role in neuronal transport by recruiting many different cargos through its kinesin light chain (KLC). Various structurally unrelated cargos interact with the conserved tetratricopeptide repeat (TPR) domain of KLC. The N-terminal capping helix of the TPR domain exhibits an atypical sequence and structural features that may contribute to the versatility of the TPR domain to bind different cargos. We determined crystal structures of the TPR domain of both KLC1 and KLC2 encompassing the N-terminal capping helix and show that this helix exhibits two distinct and defined orientations relative to the rest of the TPR domain. Such a difference in orientation gives rise, at the N-terminal part of the groove, to the formation of one hydrophobic pocket, as well as to electrostatic variations at the groove surface. We present a comprehensive structural analysis of available KLC1/2-TPR domain structures that highlights that ligand binding into the groove can be specific of one or the other N terminal capping helix orientations. Further, structural analysis reveals that the N-terminal capping helix is always involved in crystal packing contacts, especially in a TPR1:TPR1' contact which highlights its propensity to be a protein-protein interaction site. Together, these results underline that the structural plasticity of the N-terminal capping helix might represent a structural determinant for TPR domain structural versatility in cargo binding. PMID- 29036228 TI - Factors associated to acceptable treatment adherence among children with chronic kidney disease in Guatemala. AB - Pediatric patients with Chronic Kidney Disease face several barriers to medication adherence that, if addressed, may improve clinical care outcomes. A cross sectional questionnaire was administered in the Foundation for Children with Kidney Disease (FUNDANIER, Guatemala City) from September of 2015 to April of 2016 to identify the predisposing factors, enabling factors and need factors related to medication adherence. Sample size was calculated using simple random sampling with a confidence level of 95%, confidence interval of 0.05 and a proportion of 87%. A total of 103 participants responded to the questionnaire (calculated sample size was 96). Independent variables were defined and described, and the bivariate relationship to dependent variables was determined using Odds Ratio. Multivariate analysis was carried out using logistic regression. The mean adherence of study population was 78% (SD 0.08, max = 96%, min = 55%). The mean adherence in transplant patients was 82% (SD 7.8, max 96%, min 63%), and the mean adherence in dialysis patients was 76% (SD 7.8 max 90%, min 55%). Adherence was positively associated to the mother's educational level and to higher monthly household income. Together predisposing, enabling and need factors illustrate the complexities surrounding adherence in this pediatric CKD population. Public policy strategies aimed at improving access to comprehensive treatment regimens may facilitate treatment access, alleviating economic strain on caregivers and may improve adherence outcomes. PMID- 29036227 TI - Evolution of hepatitis A virus seroprevalence among HIV-positive adults in Taiwan. AB - OBJECTIVES: The study aimed to describe the seroprevalence of hepatitis A virus (HAV) in HIV-positive adult patients in Taiwan between 2012 and 2016 and to examine the evolution of HAV seroprevalence between 2004-2007 and 2012-2016. METHODS: Clinical information and data of anti-HAV antibody results were collected from 2,860 antiretroviral-naive HIV-positive Taiwanese aged 18 years or older who initiated combination antiretroviral therapy at 11 hospitals around Taiwan between 2012 and 2016 (2012-2016 cohort). A multivariate logistic regression model was applied to identify independent variables associated with HAV seropositivity. Comparisons of HAV seroprevalences and associated clinical characteristics were made between this 2012-2016 cohort and a previous cohort of 1580 HIV-positive patients in 2004-2007 (2004-2007 cohort). RESULTS: Of the 2,860 HIV-positive patients between 2012 and 2016, the overall HAV seropositivity rate was 21.2% (605/2860), which was independently associated with an older age (adjusted odds ratio [AOR], per 1-year increase, 1.13; 95% confidence interval [95% CI], 1.11-1.15) and co-infection with hepatitis B virus (AOR 1.44; 95% CI, 1.08-1.93). Residence in southern Taiwan (AOR 0.49; 95% CI, 0.34-0.72) was inversely associated with HAV seropositivity. The overall HAV seroprevalence in the 2012-2016 cohort was significantly lower than that in the 2004-2007 cohort (21.2% vs 60.9%, p<0.01). The decreases of HAV seropositivity rate were observed in nearly every age-matched group, which suggested the cohort effect on HAV seroepidemiology. However, among individuals aged 25 years or younger, the HAV seropositivity rate increased from 3.8% (2/52) in the 2004-2007 cohort to 8.5% (50/587) in the 2012-2016 cohort, with 95.4% (560/587) being MSM in this age group of the latter cohort. CONCLUSIONS: HAV seroprevalence has decreased with time among HIV-positive adults in Taiwan. The cohort effect has increased the number of young HIV-positive patients that are susceptible to HAV infection in a country without nationwide childhood vaccination program against HAV. PMID- 29036229 TI - Cloning and characterization of the Cerasus humilis sucrose phosphate synthase gene (ChSPS1). AB - Sucrose is crucial to the growth and development of plants, and sucrose phosphate synthase (SPS) plays a key role in sucrose synthesis. To understand the genetic and molecular mechanisms of sucrose synthesis in Cerasus humilis, ChSPS1, a homologue of SPS, was cloned using RT-PCR. Sequence analysis showed that the open reading frame (ORF) sequence of ChSPS1 is 3174 bp in length, encoding a predicted protein of 1057 amino acids. The predicted protein showed a high degree of sequence identity with SPS homologues from other species. Real-time RT-PCR analysis showed that ChSPS1 mRNA was detected in all tissues and the transcription level was the highest in mature fruit. There is a significant positive correlation between expression of ChSPS1 and sucrose content. Prokaryotic expression of ChSPS1 indicated that ChSPS1 protein was expressed in E. coli and it had the SPS activity. Overexpression of ChSPS1 in tobacco led to upregulation of enzyme activity and increased sucrose contents in transgenic plants. Real-time RT-PCR analysis showed that the expression of ChSPS1 in transgenic tobacco was significantly higher than in wild type plants. These results suggested that ChSPS1 plays an important role in sucrose synthesis in Cerasus humilis. PMID- 29036230 TI - Predictors of adverse drug reaction-related hospitalisation in Southwest Ethiopia: A prospective cross-sectional study. AB - BACKGROUND: Adverse drug reactions (ADRs) are important causes of morbidity and mortality in the healthcare system; however, there are no studies reporting on the magnitude and risk factors associated with ADR-related hospitalisation in Ethiopia. OBJECTIVES: To characterise the reaction types and the drugs implicated in admission to Jimma University Specialized Hospital, Southwest Ethiopia, and to identify risk factors associated with ADR-related hospitalisation. METHODS: A prospective cross-sectional study was conducted from May 2015 to August 2016 among consenting patients aged >=18 years consecutively admitted to medical wards taking at least one medication prior to admission. ADR-related hospitalisations were determined through expert review of medical records, laboratory tests, patient interviews and physical observation. ADR causality was assessed by the Naranjo algorithm followed by consensus review with internal medicine specialist. ADR preventability was assessed using Schumock and Thornton's criteria. Only definite and probable ADRs that provoked hospitalisation were considered. Binary logistic regression was used to identify independent predictors of ADR-related hospitalisation. RESULTS: Of 1,001 patients, 103 (10.3%) had ADR-related admissions. Common ADRs responsible for hospitalisation were hepatotoxicity (35, 29.4%) and acute kidney injury (27, 22.7%). The drug classes most frequently implicated were antitubercular agents (45, 25.0%) followed by antivirals (22, 12.2%) and diuretics (19, 10.6%). Independent predictors of ADR-related hospitalisation were body mass index (BMI) <18.5 kg/m2 (adjusted odd ratio [AOR] = 1.69; 95% confidence interval [CI] = 1.10-2.62; p = 0.047), pre-existing renal disease (AOR = 2.84; 95%CI = 1.38-5.85, p = 0.004), pre-existing liver disease (AOR = 2.61; 95%CI = 1.38-4.96; p = 0.003), number of comorbidities >=4 (AOR = 2.09; 95%CI = 1.27-3.44; p = 0.004), number of drugs >=6 (AOR = 2.02; 95%CI = 1.26-3.25; p = 0.004) and history of previous ADRs (AOR = 24.27; 95%CI = 11.29 52.17; p<0.001). Most ADRs (106, 89.1%) were preventable. CONCLUSIONS: ADRs were a common cause of hospitalisation. The majority of ADRs were preventable, highlighting the need for monitoring and review of patients with lower BMI, ADR history, renal and liver diseases, multiple comorbidities and medications. ADR predictors should be integrated into clinical pathways and pharmacovigilance systems. PMID- 29036231 TI - Vildagliptin increases butyrate-producing bacteria in the gut of diabetic rats. AB - Emerging evidence supports a key role for the gut microbiota in metabolic diseases, including type 2 diabetes (T2D) and obesity. The dipeptidyl peptidase-4 inhibitor vildagliptin is highly efficacious in treating T2D. However, whether vildagliptin can alter the gut microbiome is still unclear. This study aimed to identify whether vildagliptin modifies the gut microbiota structure during T2D treatment. Diabetic Sprague-Dawley (SD) rats were induced by a high-fat diet and streptozotocin injection (HFD/STZ). Diabetic rats were orally administered a low dose of vildagliptin (LV, 0.01 g/kg/d vildagliptin), high dose of vildagliptin (HV, 0.02 g/kg/d vildagliptin), or normal saline for 12 weeks. Fasting blood glucose, blood glucose after glucose loading, and serum insulin levels were significantly reduced in the LV and HV groups compared with those in the T2D group. The serum GLP-1 level increased more in the vildagliptin-treated group than in the T2D group. Pyrosequencing of the V3-V4 regions of 16S rRNA genes revealed that vildagliptin significantly altered the gut microbiota. The operational taxonomic units (OTUs) and community richness (Chao1) index were significantly reduced in the vildagliptin and diabetic groups compared with those in the control group. At the phylum level, a higher relative abundance of Bacteroidetes, lower abundance of Firmicutes, and reduced ratio of Fimicutes/Bacteroidetes were observed in the vildagliptin-treated group. Moreover, vildagliptin treatment increased butyrate-producing bacteria, including Baceroides and Erysipelotrichaeae, in the diabetic rats. Moreover, Lachnospira abundance was significantly negatively correlated with fasting blood glucose levels. In conclusion, vildagliptin treatment could benefit the communities of the gut microbiota. PMID- 29036233 TI - Correction: Diabetes-Induced Superoxide Anion and Breakdown of the Blood-Retinal Barrier: Role of the VEGF/uPAR Pathway. AB - [This corrects the article DOI: 10.1371/journal.pone.0071868.]. PMID- 29036232 TI - Rare and common variants of APOB and PCSK9 in Korean patients with extremely low low-density lipoprotein-cholesterol levels. AB - BACKGROUND: Screening of variants, related to lipid metabolism in patients with extreme cholesterol levels, is a tool used to identify targets affecting cardiovascular outcomes. The aim of this study was to examine the prevalence and characteristics of rare and common variants of APOB and PCSK9 in Korean patients with extremely low low-density lipoprotein-cholesterol (LDL-C) levels. METHODS: Among 13,545 participants enrolled in a cardiovascular genome cohort, 22 subjects, whose LDL-C levels without lipid-lowering agents were <=1 percentile (48 mg/dL) of Korean population, were analyzed. Two target genes, APOB and PCSK9, were sequenced by targeted next-generation sequencing. Prediction of functional effects was conducted using SIFT, PolyPhen-2, and Mutation Taster, and matched against a public database of variants. RESULTS: Eight rare variants of the two candidate genes (five in APOB and three in PCSK9) were found in nine subjects. Two subjects had more than two different rare variants of either gene (one subject in APOB and another subject in APOB/PCSK9). Conversely, 12 common variants (nine in APOB and three in PCSK9) were discovered in 21 subjects. Among all variants, six in APOB and three in PCSK9 were novel. Several variants previously reported functional, including c.C277T (p.R93C) and c.G2009A (p.G670E) of PCSK9, were found in our population. CONCLUSIONS: Rare variants of APOB or PCSK9 were identified in nine of the 22 study patients with extremely low LDL-C levels, whereas most of them had common variants of the two genes. The common novelty of variants suggested polymorphism of the two genes among them. Our results provide rare genetic information associated with this lipid phenotype in East Asian people. PMID- 29036234 TI - [Radiolucent and opaque lesions on a panoramic radiograph; a cyst or not?] AB - In the context of pain diagnostics, several lesions, partially radiolucent and partially opaque, were identified by chance in the mandible and maxilla. On the basis of the characteristic x-ray image, it was assumed to be cemento-osseous dysplasia. At an early stage, this cannot easily be distinguished from apical periodontitis. An incorrect diagnosis could lead to needless endodontic treatment. PMID- 29036235 TI - [Medicaments and oral healthcare 5. Adverse effects of -medications and over-the counter drugs on teeth]. AB - Intrinsic tooth discoloration may occur as an adverse effect of fluoride and tetracyclines. Extrinsic tooth discoloration may occur as superficial staining or as discoloration of the superficial pellicle and/or biofilm due to chlorhexidine, liquid iron salts, essential oils, some antibiotics and stannous fluoride. Inhibition of orthodontic tooth movement has been reported due to the use of prostaglandin synthetase inhibitors. If medications or over-the-counter drugs induce hyposalivation or contain much sucrose, caries may develop. Erosion may occur if the acidity of medications or over-the-counter drugs is excessive. Attrition is a well-known adverse effect of serotonin reuptake inhibitors, antiparkinson agents, and antipsychotics. Congenital dysplasia is observed following childhood treatment with cytostatic drugs. External cervical root resorption is an adverse effect of internal teeth-whitening products. Prenatal exposure to antiepileptic drugs and childhood treatment with cytostatic drugs may cause dental agenesis. Antiseptic drugs applied for external teeth-whitening and toothpastes with additional ingredients to prevent extrinsic discoloration and creation of calculus, may cause tooth hypersensitivity. PMID- 29036236 TI - [Preventive dentistry 8. Diet and caries]. AB - The call to consume less sugar in order to improve the general health is becoming increasingly loud. The question is in what way consuming less sugar could also contribute to a lower risk of caries. This can be achieved by limiting the frequency of consuming sugary snacks. For oral health reasons, people in the Netherlands are advised not to consume things containing sugar more than four times between meals. Another way to make the diet less cariogenic is to substitute sugar in foods by non-caloric intense sweeteners, caloric sugar alcohols or 'new carbohydrates'. Non-caloric intense sweeteners and caloric sweeteners have been proven to be non-cariogenic. New carbohydrates still have to be individually tested. PMID- 29036237 TI - [Priorities and recommendations in oral health care for older people]. AB - The oral health of older people in the Netherlands, especially those who are vulnerable and dependent on care, is insufficient. Older people and other stakeholders participated in a so-called Priority Setting Partnership study to identify hindrances that have been experienced in oral health care and to distil from their experience items for the agenda for further research. For this reason, discussions were held in 5 focus groups with respectively 1 group of older people, caregivers, external parties and health care professionals. In a fifth focus group, a so-called 'consensus group', the definitive list of prioritised items on the agenda was formulated. The most important priorities concern policy and organisation of oral health care, awareness, cooperation among various health care professionals, the financing and organisation of oral health care for older people living at home and education concerning oral health care for all health care professionals. Awareness about the importance of good oral health for older people among health care professionals is the first step towards better oral health care for older people in the Netherlands. PMID- 29036238 TI - [A PhD completed. Periodontitis, diabetes mellitus, cardiovascular disease: a Bermuda triangle]. AB - The relationship among periodontitis, diabetes mellitus and atherosclerotic cardiovascular disease is complex and can be thought of as a Bermuda triangle. A relationship has been demonstrated between periodontitis, a worsening in the condition of the vascular system and an increased total level of inflammatory markers. Patients with severe periodontitis also show raised levels of glycosylated haemoglobin. This means that severe periodontitis can be an early indication of diabetes mellitus. Periodontal treatment generally promotes improved blood sugar regulation in diabetes patients, an improved condition of the vascular system and a decrease in the total levels of inflammation. Factors such as genetics, lifestyle and the presence of other chronic co-morbidities contribute to the complexity of this relationship. For the treatment of severe periodontitis, interdisciplinary cooperation among dentists, general practitioners and internists is therefore recommended. PMID- 29036239 TI - [A PhD completed. Factors subjectively and objectively influencing children's need for orthodontic treatment and their related quality of life]. AB - Oral health can be measured from the perspective of the professional (objectively) and from the perspective of the patient (subjectively). However, objective and subjective oral health do not match well. The focus of this research, then, is the relationship between objective oral health, subjective oral health and oral health-related quality of life (OHRQoL) in children. These relationships were considered in connection with orthodontic problems. The research was carried out as part of the Generation R Study, a prospective study of the health of 10,000 children in Rotterdam, the Netherlands. Besides malocclusions and caries, several non-clinical factors, such as environmental factors and personal qualities, seemed to have an influence on the subjective need for orthodontic treatment and OHRQoL. Age, gender, ethnicity, and a feeling of self-worth are just like socio-economic factors that result in a variable relationship between subjective and objective oral health. This knowledge cannot only help to support effective communication between professional and patient, but also to develop targeted interventions to promote children's oral health. PMID- 29036248 TI - Apremilast and Narrowband Ultraviolet-B Combination Therapy for Treating Moderate to-Severe Plaque Psoriasis. AB - BACKGROUND: Combining narrowband UVB (NB-UVB) phototherapy with biologics has been shown to enhance the therapeutic response of plaque psoriasis patients. The objective of this study was to evaluate the effectiveness of apremilast combined with NB-UVB in patients with moderate to severe plaque psoriasis. METHODS: This was a 12-week, open-label study of 29 patients diagnosed with moderate to severe psoriasis. Patients received apremilast 30 mg twice daily, and increasing doses of NB-UVB (310-312 nm) 3 times per week for 12 weeks. RESULTS: Twenty-two of 29 patients (76%) completed the 12-week apremilast and NB-UVB combination therapy; 73% (16 of 22 completers) achieved a PASI 75 response at week 12. Mean scores for PASI, VAS pain, VAS itch, DLQI, and PGA improved by 77%, 77%, 69%, 70%, and 67%, respectively, at week 12. The most commonly reported adverse events (AEs) were mild and moderate first-degree burns related to NB-UVB (n=11 [38%] patients). A second-degree NB-UVB burn was reported (likely due to an underlying photosensitivity) and was considered a serious AE. CONCLUSION: The combination of apremilast with NB-UVB was effective for the treatment of moderate to severe plaque psoriasis, without any unexpected safety signals. Apremilast combined with NB-UVB provided a high treatment response in patients with moderate to severe plaque psoriasis, and may be an option for patients to enhance a patient's initial therapeutic response.

J Drugs Dermatol. 2017;16(10):957 962.

. PMID- 29036249 TI - Cost-Effectiveness Analysis of Ixekizumab vs Etanercept and Their Manufacturer Recommended Dosing Regimens in Moderate to Severe Plaque Psoriasis. AB - INTRODUCTION: Biologic therapies have revolutionized the treatment of psoriasis; however, their use is limited by costs. Ixekizumab was more effective than etanercept in the UNCOVER trials, and the Food and Drug Administration (FDA) approved ixekizumab for treating psoriasis. Evaluating the cost-effectiveness of these therapies is crucial for medical decision making and our objective was to determine the cost-effectiveness of various ixekizumab dosing frequencies compared with etanercept. METHODS: We utilized published data from the UNCOVER comparative efficacy trials, including transitional probabilities and treatment response rates, to create a Markov model simulating the clinical course and cost effectiveness of three treatment algorithms for patients with moderate to severe plaque psoriasis over 60-weeks: (1) ixekizumab every 2 weeks for 12 weeks then every 4 weeks, (2) ixekizumab every 4 weeks throughout the treatment period, (3) biweekly etanercept for 12 weeks then once weekly. We utilized a standard willingness-to-pay (WTP) threshold of $150,000 per quality adjusted life year (QALY) and Medicaid drug acquisition costs for our calculations. RESULTS: Ixekizumab every 4 weeks was $28,681 (USD) less expensive than biweekly etanercept, and $21,375 less expensive, and 0.006 QALY less effective, than ixekizumab every 2 weeks-- a savings of $28.7 and $21.4 million, respectively, per 1,000 patients. A 95.6% cost reduction to $197.83 per dose is required for ixekizumab every 2 weeks to be more cost-effective than every 4 weeks. Biweekly etanercept requires a 29.5% cost reduction ($743.82 per dose) to be competitive with ixekizumab every 4 weeks. DISCUSSION: This cost-effectiveness model utilizes strong input data but is a limited approximation of real-life scenarios. Treatment with ixekizumab every 2 weeks is unlikely to be cost-effective compared with ixekizumab every 4 weeks at current U.S. market prices. Yet, the U.S. FDA approval and manufacturer's recommendation are for ixekizumab every 2 weeks. Accordingly, we suggested selecting biologic therapies using cost-effectiveness analyses.

J Drugs Dermatol. 2017;16(10):964-970.

. PMID- 29036250 TI - A Randomized, Double-Blind, Placebo-Controlled Study of the Vasoconstrictor Potency of Topical 0.25% Desoximetasone Spray: A High to Super High Range of Potency (Class I to Class II) Corticosteroid Formulation. AB - BACKGROUND: Topical corticosteroids offer great efficacy in controlling a wide variety of dermatoses. Traditional ointment vehicles are messy and difficult to apply, which might limit adherence. Alternative vehicle formulations such as topical sprays might improve adherence due to their ease of application. The potency of desoximetasone spray is not fully characterized. OBJECTIVE: To evaluate the relative vasoconstrictive potency of desoximetasone 0.25% topical spray formulation. METHODS: This is a randomized, blinded, single-center study comparing the vasoconstrictive properties of desoximetasone 0.25% topical spray to placebo and seven other known potency topical corticosteroid formulations. The primary endpoint was the degree of vasoconstriction measured using a colorimeter device. RESULTS: Thirty-two healthy subjects met eligibility criteria. Desoximetasone 0.25% topical spray (REGWQ Grouping = A) showed a trend toward greater vasoconstrictive potency compared to clobetasol propionate 0.05% spray (REGWQ Grouping = A). No adverse or serious events were reported. LIMITATIONS: The trial enrolled 90% females, which may affect the external validity of the study. Different populations may respond differently to desoximetasone spray. CONCLUSIONS: Desoximetasone 0.25% topical spray is a high to super high range of potency (Class I to Class II) steroid formulation. Given the cosmetic acceptability of spray products, we anticipate that this type of product would be highly effective for the treatment of inflammatory diseases in clinical practice.

J Drugs Dermatol. 2017;16(10):972-975.

. PMID- 29036251 TI - An Adhesive Patch-Based Skin Biopsy Device for Molecular Diagnostics and Skin Microbiome Studies. AB - INTRODUCTION: A number of diagnoses in clinical dermatology are currently histopathologically confirmed and this image recognition-based confirmation generally requires surgical biopsies. The increasing ability of molecular pathology to corroborate or correct a clinical diagnosis based on objective gene expression, mutation analysis, or molecular microbiome data is on the horizon and would be further supported by a tool or procedure to collect samples non invasively. This study characterizes such a tool in form of a 'bladeless' adhesive patch-based skin biopsy device. METHODS: The performance of this device was evaluated through a variety of complementary technologies including assessment of sample biomass, electron microscopy demonstrating the harvesting of layers of epidermal tissue, and isolation of RNA and DNA from epidermal skin samples. Samples were obtained by application of adhesive patches to the anatomical area of interest. RESULTS: Biomass assessment demonstrated collection of approximately 0.3mg of skin tissue per adhesive patch and electron microscopy confirmed the nature of the harvested epidermal skin tissue. The obtained tissue samples are stored in a stable fashion on adhesive patches over a wide range of temperatures (-80oC to +60oC) and for extended periods of time (7 days or more). Total human RNA, human genomic DNA and microbiome DNA yields were 23.35 + 15.75ng, 27.72 + 20.71ng and 576.2 + 376.8pg, respectively, in skin samples obtained from combining 4 full patches collected non-invasively from the forehead of healthy volunteers. DISCUSSION: The adhesive patch skin sampling procedure is well tolerated and provides robust means to obtain skin tissue, RNA, DNA, and microbiome samples without involving surgical biopsies. The non-invasively obtained skin samples can be shipped cost effectively at ambient temperature by mail or standard courier service, and are suitable for a variety of molecular analyses of the skin microbiome as well as of keratinocytes, T cells, dendritic cells, melanocytes, and other skin cells involved in the pathology of various skin conditions and conditions where the skin can serve as a surrogate target organ.

J Drugs Dermatol. 2017;16(10):979-986.

. PMID- 29036252 TI - Efficacy of Isotretinoin and Acitretin in Treatment of Frontal Fibrosing Alopecia: Retrospective Analysis of 54 Cases. AB - This study aimed to assess the efficacy of systemic retinoids in treating frontal fibrosing alopecia (FFA). It was based on a retrospective analysis of 54 female patients with FFA treated with: oral isotretinoin at the daily dose of 20 mg (29/54) or acitretin at the daily dose of 20 mg (11/54) or with oral finasteride 5 mg/daily (14/54). The study was conducted between 2007 and 2017. The basic of the study is the measurement of distance between the frontal hairline and the glabellar crease prior to the commencement of treatment and after 6, 12, and 24 months. The treatment with systemic retinoids lasted between 12 and 16 months (the mean duration of treatment was 13.5 months). The primary treatment goal was defined as no further progression of disease after 12 months of treatment, while the secondary treatment goal was defined as no further progression of disease following the discontinuation of systemic retinoids. The primary treatment goal was achieved by 76% (23/29) of patients treated with isotretinoin, 73% (8/11) of patients treated with acitretin, and 43% (6/14) of patients treated with finasteride. The secondary treatment goal was achieved by 72% (21/29) of patients treated with isotretinoin, 73% (8/11) of patients treated with acitretin, and 43% (6/14) of patients treated with finasteride. Thus, the administration of systemic retinoids may be beneficial for the stabilization of frontal hairline in patients with FFA.

J Drugs Dermatol. 2017;16(10):988-992.

. PMID- 29036253 TI - Understanding State Regulation of Biosimilars and Effect on Prescribers. AB - Biologics are a mainstay of treatment for many dermatologic conditions, however the high costs can be prohibitive for many patients. A growing market of biosimilar drugs is emerging with the hope of providing patients access to more affordable medications. While the FDA has created an abbreviated licensure pathway for these drugs, states are still in the process of creating regulations regarding their substitution for reference biologics. This article looks to raise awareness of the current federal regulations and the differences among state regulations regarding the use of biosimilars. Fifty percent of states have passed legislation regarding procedures for substitution of biosimilars in the pharmacy. All states require biosimilars to have FDA-approved "interchangeable" status, however states vary on other requirements such as: prescriber and patient notification, pharmaceutical record keeping, publicly-accessible list of interchangeable products, and cost regulations. Some of the issues surrounding biosimilar regulation include difficulty obtaining interchangeability status from the FDA, resistance to the physician notification requirement, and concern for traceability of adverse reactions. Physicians must be aware of current federal and state regulations regarding biosimilars and help inform policy makers of the potential benefits and shortcoming of biosimilar legislation.

J Drugs Dermatol. 2017;16(10):995-1000.

. PMID- 29036254 TI - Evaluation of Risk of Major Adverse Cardiovascular Events With Biologic Therapy in Patients With Psoriasis. AB - BACKGROUND: Psoriasis is associated with increased risk of major adverse cardiovascular events (MACE). OBJECTIVES: Compare MACE risk with biologics vs topical/phototherapy use. METHODS: Psoriasis Longitudinal Assessment Registry (PSOLAR) is an international psoriasis registry of patients eligible to receive biologic/systemic treatments prospectively. MACE is defined as myocardial infarction, stroke, or cardiovascular death. Biologic cohorts, including tumor necrosis factor-alpha (TNF-alpha) inhibitors (ie, adalimumab, etanercept, and infliximab) and ustekinumab, combined and by class, were compared with a topical/phototherapy cohort. Incidence rates of MACE per 100-patient-years (100PY) with 95% confidence intervals (95% CI) are reported. Multivariate analyses were performed to evaluate the effect of treatment on the risk of MACE adjusting for confounders. RESULTS: Analyses included 7550 patients: 6767 in the combined biologics cohort (3949 and 2818 in the TNF-alpha inhibitors and ustekinumab cohorts, respectively) and 783 in the topical/phototherapy cohort. Mean duration of exposure was approximately 2.8 years (combined biologics) and 4.1 years (topical/phototherapy). A total of 52 MACE were reported; MACE incidence rates were 0.22/100PY (95% CI: 0.16, 0.30) for the combined biologics cohort (TNF-alpha inhibitors [0.20/100PY (0.12, 0.31)] and ustekinumab [0.24/100PY (0.15, 0.37]) and 0.34/100PY (0.17, 0.61) for the topical/phototherapy cohort. For the combined biologics (hazard ratio=0.92; 95% CI [0.426, 1.988]), TNF-alpha inhibitor (0.85 [0.373, 1.928]), and ustekinumab (1.03[0.440, 2.402]) cohorts, treatment was not associated with increased risk of MACE versus the topical/phototherapy cohort. CONCLUSION: Based on data accumulated to date in PSOLAR, treatment with biologics did not have an impact on the risk of MACE in patients with moderate-to-severe psoriasis.

J Drugs Dermatol. 2017;16 (10):1002-1013.

. PMID- 29036255 TI - Tavaborole in Difficult-to-Treat Onychomycosis Cases: A Post-hoc Assessment of Phase III Subjects. AB - Toenail onychomycosis is a chronic fungal infection that often requires prolonged treatment in order to effectively manage pathogenic organisms and obtain a clear nail. Traditionally, certain clinical features of onychomycosis, including the presence of substantial lateral disease, focal fungal masses, yellow/brown streaks, and extensive nail involvement (ie, >50%), indicate a poor treatment prognosis and have proven difficult-to-treat with oral or traditional topical therapies. Owing to the novel features of topical tavaborole, we sought to understand the potential utility of tavaborole in difficult-to-treat onychomycosis. A blinded, post-hoc assessment of Phase III trials was conducted, focusing on initial presentation, midpoint assessment (24 weeks), and final outcomes (52 weeks) in subjects identified as having difficult-to-treat onychomycosis and treated for 48 weeks with once-daily application of either tavaborole 5% solution or vehicle. Our post-hoc analysis identified 84 difficult to-treat cases (tavaborole 5%; n=60; vehicle, n=24) in subjects with toenail onychomycosis due to Trichophyton rubrum or Trichophyton mentagrophytes. No subjects identified as difficult-to-treat and treated with vehicle achieved a complete cure, while 6 subjects treated with tavaborole 5% attained a completely clear nail and negative mycology. Similarly, 7 subjects treated with tavaborole 5% solution achieved an almost complete cure (<=10% involvement and negative mycology) while 1 subject on vehicle achieved an almost complete cure. We present a case series of 4 patients, of varying age and difficult-to-treat clinical features, which responded positively to tavaborole 5% solution. Three of the subjects achieved complete cure after being treated with tavaborole 5%, with one additional subject (an 88-year-old female) achieving an almost complete clear nail by treatment end. The outcomes presented here may not be reflective of patients that may present with these clinical characteristics. Additional investigations would be useful in order to assess the value of topical tavaborole 5% solution in difficult-to-treat clinical presentations of onychomycosis.

J Drugs Dermatol. 2017;16(10):1016-1021.

. PMID- 29036256 TI - Pharmacokinetic Comparison of Once-Daily Topical Minocycline Foam 4% vs Oral Minocycline for Moderate-to-Severe Acne. AB - OBJECTIVE: To characterize minocycline pharmacokinetics and relative bioavailability following multiple-dose topical administration of minocycline hydrochloride (HCl) foam 4% (FMX101 4%) as compared with single-dose oral administration of minocycline HCl extended-release tablets (Solodyn(r)) in subjects with moderate-to-severe acne. METHODS: A Phase 1, single-center, nonrandomized, open-label, active-controlled, 2-period, 2-treatment crossover clinical study. The study included 30 healthy adults (mean age, 22.6 years; 90% white, and 60% females) who had moderate-to-severe acne. Subjects were assigned to first receive a single oral dose of a minocycline HCl extended-release tablet (approximately 1 mg/kg). At 10 days after the oral minocycline dose, topical minocycline foam 4% was applied, once daily for 21 days. Serial blood samples were obtained before and after administration of oral minocycline and each topical application of minocycline foam 4% on days 1, 12, and 21. RESULTS: Following oral administration of minocycline (approximately 1 mg/kg), plasma minocycline concentration increased until 3 hours, followed by a log-linear decrease over the remainder of the 96-hour sampling period. Following topical application of a 4-g maximal-use dose of minocycline foam 4% for 21 days, plasma minocycline concentration was very low, with geometric mean Cmax values ranging from 1.1 ng/mL to 1.5 ng/mL. Steady state was achieved by day 6. Overall, minocycline exposure with topical minocycline foam 4% was 730 to 765 times lower than that with oral minocycline. There was no evidence of minocycline accumulation over the 21 days of topical application of minocycline foam 4%. Topical minocycline foam 4% appeared to be safe and well tolerated, with no serious treatment-emergent adverse events (TEAEs), treatment-related TEAEs, or TEAEs that led to treatment discontinuation. CONCLUSION: Once-daily topical application of minocycline foam 4% did not lead to significant systemic exposure to minocycline. It appears to be a well-tolerated treatment option for individuals with moderate-to-severe acne.

J Drugs Dermatol. 2017;16(10):1022-1028.

. PMID- 29036257 TI - Improvement of Actinic Keratoses Using Topical DNA Repair Enzymes: A Randomized Placebo-Controlled Trial. AB - BACKGROUND: Actinic keratoses (AKs) are proliferations of abnormal keratinocytes, which may progress into non-melanoma skin cancers. Although multiple treatment modalities exist for AKs, their incidence continues to rise, making new methods of both prevention and treatment necessary. DNA repair enzymes have been shown to reverse sun-damage, resulting in reduced rates of AKs and non-melanoma skin cancer (NMSC) in specific patient populations. OBJECTIVE: We investigated the efficacy of a topical DNA repair enzyme lotion as a field therapy for AKs. METHODS: In a single center, randomized double-blind study, we randomly assigned 15 patients with AKs on their face or scalp to receive topical DNA repair enzyme lotion or placebo (Eucerin Professional lotion). Lotion was self-applied to a treatment field twice daily for 8 consecutive weeks. Complete clearance (primary outcome) was assessed at week 8, and local reactions were quantitatively measured. Follow-up at week 12 assessed for continued clearance of AKs. RESULTS: Thirteen subjects completed the trial. Compared to baseline, patients who used the repair enzyme had significantly fewer AKs than those using the control lotion after 8-weeks treatment. Specifically, there was a 46.6% percent decrease in AKs the DNA repair enzyme lotion group compared to a 32.7% decrease in the placebo group. Significance between the two groups was noted at the12 week follow-up, where there was an additional 29.2% decrease in AK percentage in the DNA repair enzyme group, while the placebo group had a 31.4% increase in AKs (P=0.0026). On final self-assessment, 85% of subjects reported being at least "satisfied" with the ability of the medication to decrease their AK burden. No side effects were reported. CONCLUSION: These results suggest that topical DNA repair enzymes may help reduce the number of AKs in individuals with moderate-to-severe photodamaged skin. Additionally, there may be a lasting effect of the DNA repair if application is discontinued. Further, cutaneous malignancies were not detected in any of the subjects during the study period. Despite the brevity of the study, these preliminary results suggest the role of DNA repair enzymes for not only treatment, but also skin cancer prevention. Further study and more objective evaluation measures are required for definitive conclusions to be drawn.

J Drugs Dermatol. 2017;16(10):1030-1034.

. PMID- 29036258 TI - Serpiginous Purpuric Eruption of the Leg. AB - A previously healthy 68-year-old male presented with a rash on his right lower leg. The lesions had spread along the leg since onset 9 days prior, and the patient reported localized soreness and pruritus. He denied systemic symptoms including fever, fatigue, myalgia, joint pain, and recent illness. Physical examination revealed a serpiginous, purpuric eruption on the anterior and posterior right thigh and lower leg. A 4mm punch biopsy from the right lower leg revealed a Th2 dominant process reflective of a type IV delayed hypersensitivity reaction. Superficial and deep angiocentric and eccrinotropic lymphocytic infiltrate and tissue eosinophilia were noted. Degranulated eosinophils forming 'flame figures' were also identified with accompanying mural edema and red blood cell extravasation. Further evaluation revealed an elevated antistreptolysin O antibody, though the remainder of the work up was unremarkable. Clinicohistopathologic correlation supported the diagnosis of Blaschkolinear purpuric Wells' Syndrome. This case highlights a unique presentation of a rare inflammatory dermatosis, and serves as a reminder that given Wells' can be associated with underlying malignancy, an age appropriate work up, based on patient history and presentation, may be warranted.

J Drugs Dermatol. 2017;16(10):1036-1038.

. PMID- 29036259 TI - Autoimmune Progesterone Dermatitis: A Diagnosis to Consider in a Patient With Cyclical Cutaneous Eruptions. AB - Autoimmune progesterone dermatitis (APD) is a cyclical cutaneous reaction to progesterone, with symptoms that typically begin 3-10 days before the onset of menstrual flow and end 1-2 days into menses. The symptoms vary in severity from barely visible to anaphylaxis, but most often include an eczematous eruption, erythema multiforme, urticaria, folliculitis, and angioedema. This is a rare disorder with only a handful of documented cases. The pathogenesis of this condition remains unknown and significant variations in the presentation and severity of symptoms complicates its diagnosis. Treatment seeks to inhibit progesterone secretion through suppression of ovulation, but it may be unsuccessful. We present a case of autoimmune progesterone dermatitis that eluded diagnosis for several years, and subsequently the patient was completely controlled with oral contraceptive pills.

J Drugs Dermatol. 2017;16(10):1040-1042.

. PMID- 29036260 TI - Trimethoprim-Sulfamethoxazole-Induced Drug Eruption With Eosinophilia and Systemic Symptoms (DRESS). AB - Drug rash with eosinophilia and systemic symptoms (DRESS) is a severe and potentially life threatening adverse drug reaction. To help identify DRESS, several criteria have been established; however, there is still a lack of consensus on diagnosis, and clinical judgment is paramount. Here we describe a 24 year-old female who presented with a cutaneous eruption, fever, lymphadenopathy, eosinophilia, facial edema, and elevated liver enzymes four and a half weeks after a 10-day course of Trimethoprim/sulfamethoxazole (TMP/SMX). We used both the RegiSCAR and J-SCAR criteria to show the validity of classifying this case as DRESS, we also comment on the only other three cases, published to date, that had been reported as TMP/SMX induced DRESS. DRESS can be a difficult diagnosis due to its diverse symptomatology and delayed presentation - therefore, high suspicion and exclusion of other causes is key. Use of validated diagnostic criteria can aid the clinician in this regard. In the absence of a well-established therapy, early recognition, withdrawal of suspected drug(s), and supportive care play a crucial role in the management of DRESS.

J Drugs Dermatol. 2017;16(10):1043-1046.

. PMID- 29036261 TI - Development of Halo Nevi in a Lung Cancer Patient: A Novel Immune-Related Cutaneous Event from Atezolizumab. AB - Immunotherapy-induced vitiligo is an immune-related adverse event (irAE) observed in metastatic melanoma patients treated with immune checkpoint inhibitors that target the cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed cell death-1 (PD-1) pathways. To date, the development of leukoderma, poliosis, and halo nevi during immunotherapy has largely been reported in metastatic melanoma patients. We report a case of immunotherapy-induced leukoderma presenting as halo nevi in a patient with non-small cell lung cancer (NSCLC) treated with atezolizumab, a programmed cell death ligand (PD-L1) antibody. Immunotherapy-induced vitiligo in metastatic melanoma patients may be associated with improved survival, but it remains to be determined whether its occurrence in non-melanoma cancers has the same prognostic significance.

J Drugs Dermatol. 2017;16(10):1047-1049.

. PMID- 29036262 TI - Granuloma Annulare Secondary to Vemurafenib Therapy for Lung Adenocarcinoma. AB - Numerous cutaneous manifestations have been associated with use of BRAF inhibitors, including two previously reported cases of granuloma annulare (GA) eruptions associated with vemurafenib therapy. Both of these patients were being treated for metastatic melanoma. In this report, we describe the case of a 71 year-old man who developed classic GA lesions while being treated with vemurafenib monotherapy for nonmelanoma cancer, specifically metastatic lung adenocarcinoma positive for BRAF V600 mutation.

J Drugs Dermatol. 2017;16(10):1050-1052.

. PMID- 29036263 TI - Effects of 12C6+ heavy ion beam irradiation on the p53 signaling pathway in HepG2 liver cancer cells. AB - The heavy ion beam is considered to be the ideal source for radiotherapy. The p53 tumor suppressor gene senses DNA damage and transducts intracellular apoptosis signals. Previous reports showed that the heavy ion beam can trigger complex forms of damage to cellular DNA, leading to cell cycle arrest and apoptosis of HepG2 human liver cancer cells; however, the mechanisms remains unclear fully. In order to explore whether the intrinsic or extrinsic pathway participates this process, HepG2 cells were treated with 12C6+ HIB irradiation at doses of 0 (control), 1, 2, 4, and 6 Gy with various methods employed to understand relevant mechanisms, such as detection of apoptosis, cell cycle, and Fas expression by flow cytometry, analysis of apoptotic morphology by electron microscopy and laser scanning confocal microscopy, and screening differentially expressed genes relating to p53 signaling pathway by PCR-array assay following with any genes confirmed by western blot analysis. This study showed that 12C6+ heavy ion beam irradiation at a dose of 6 Gy leads to endogenous DNA double-strand damage, G2/M cell cycle arrest, and apoptosis of human HepG2 cells via synergistic effect of the extrinsic and intrinsic pathways. Differentially expressed genes in the p53 signaling pathway related to DNA damage repair, apoptosis, cycle regulation, metastasis, deterioration and radioresistance were also discovered. Consequently, the expressions of Fas, TP53BP2, TP53AIP1, and CASP9 were confirmed upregulated after 12C6+ HIB irradiation treatment. In conclusion, this study demonstrated the mechanisms of inhibition and apoptosis induced by 12C6+ heavy ion beam irradiation on HepG2 cancer cells is mediated by initiation of the biological function of p53 signaling pathway including extrinsic and intrinsic apoptosis pathway. PMID- 29036264 TI - Immature colon carcinoma transcript-1 promotes proliferation of gastric cancer cells. AB - Gastric cancer is the fourth most common malignant tumor and has been considered as one of the leading causes of cancer-related death worldwide. The identification of the molecular mechanism during gastric cancer progression is urgently needed, which will help to develop more effective treatment strategies. As a component of the human mitoribosome, immature colon carcinoma transcript-1 (ICT1) might be involved in tumor formation and progression. However, its biological function and the corresponding mechanism in gastric cancer have been poorly characterized. To study the mechanism of ICT1 in gastric cancer, we first investigated the mRNA levels of ICT1 in human normal and gastric cancer tissues using datasets from the publicly available Oncomine database. The results showed that ICT1 is overexpressed in gastric cancer tissues. Then in order to study the role of ICT1 in gastric cancer, two shRNAs were used to silence ICT1 in MGC80-3 and AGS cells. Functional analysis showed ICT1 knockdown significantly inhibited the proliferation of gastric cancer cells and induced apoptosis. Further, mechanistic study demonstrated that ICT1 silencing induced cell-cycle arrest at G2/M phase via the suppression of cyclin A2 and cyclin B1. In addition, ICT1 silencing also increased cleaved caspase-3 and activated PARP in gastric cancer cells. These findings suggest that ICT1 may play a crucial role in promoting gastric cancer proliferation in vitro. PMID- 29036265 TI - Short-Term Blood Pressure Variability and Cognition in the Elderly: Mere Association or a Key Mechanism? PMID- 29036266 TI - Alterations in NO/ROS ratio and expression of Trx1 and Prdx2 in isoproterenol induced cardiac hypertrophy. AB - The development of cardiac hypertrophy is a complicated process, which undergoes a transition from compensatory hypertrophy to heart failure, and the identification of new biomarkers and targets for this disease is greatly needed. Here we investigated the development of isoproterenol (ISO)-induced cardiac hypertrophy in an in vitro experimental model. After the induction of hypertrophy with ISO treatment in H9c2 cells, cell surface area, cell viability, cellular reactive oxygen species (ROS), and nitric oxide (NO) levels were tested. Our data showed that the cell viability, mitochondrial membrane potential, and NO/ROS balance varied during the development of cardiac hypertrophy in H9c2 cells. It was also found that the expression of thioredoxin1 (Trx1) and peroxiredoxin2 (Prdx2) was decreased during the cardiac hypertrophy of H9c2 cells. These results suggest a critical role for Trx1 and Prdx2 in the cardiac hypertrophy of H9c2 cells and in the transition from compensated hypertrophy to de-compensated hypertrophy in H9c2 cells, and our findings may have important implications for the management of this disease. PMID- 29036267 TI - Electrical Activity of the Heart Under Pressure. PMID- 29036268 TI - Breast Cancer Estrogen Receptor Status According to Biological Generation: US Black and White Women Born 1915-1979. AB - Evidence suggests that contemporary population distributions of estrogen-receptor (ER) status among breast cancer patients may be shaped by earlier major societal events, such as the 1965 abolition of legal racial discrimination in the United States (state and local "Jim Crow" laws) and the Great Famine in China (1959 1961). We analyzed changes in ER status in relation to Jim Crow birthplace among the 46,417 black and 339,830 white US-born, non-Hispanic women in the Surveillance, Epidemiology, and End Results (SEER) 13 Registry Group who were born between 1915 and 1979 and diagnosed (ages 25-84 years, inclusive) during 1992-2012. We grouped the cases according to birth cohort and quantified the rate of change using the haldane (which scales change in relation to biological generation). The percentage of ER-positive cases rose according to birth cohort (1915-1919 to 1975-1979) only among women diagnosed before age 55. Changes according to biological generation were greater among black women than among white women, and among black women, they were greatest among those born in Jim Crow (versus non-Jim Crow) states, with this group being the only group to exhibit high haldane values (>|0.3|, indicating high rate of change). Our study's analytical approach and findings underscore the need to consider history and societal context when analyzing ER status among breast cancer patients and racial/ethnic inequities in its distribution. PMID- 29036270 TI - On expert curation and scalability: UniProtKB/Swiss-Prot as a case study. AB - Motivation: Biological knowledgebases, such as UniProtKB/Swiss-Prot, constitute an essential component of daily scientific research by offering distilled, summarized and computable knowledge extracted from the literature by expert curators. While knowledgebases play an increasingly important role in the scientific community, their ability to keep up with the growth of biomedical literature is under scrutiny. Using UniProtKB/Swiss-Prot as a case study, we address this concern via multiple literature triage approaches. Results: With the assistance of the PubTator text-mining tool, we tagged more than 10 000 articles to assess the ratio of papers relevant for curation. We first show that curators read and evaluate many more papers than they curate, and that measuring the number of curated publications is insufficient to provide a complete picture as demonstrated by the fact that 8000-10 000 papers are curated in UniProt each year while curators evaluate 50 000-70 000 papers per year. We show that 90% of the papers in PubMed are out of the scope of UniProt, that a maximum of 2-3% of the papers indexed in PubMed each year are relevant for UniProt curation, and that, despite appearances, expert curation in UniProt is scalable. Availability and implementation: UniProt is freely available at http://www.uniprot.org/. Contact: sylvain.poux@sib.swiss. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036269 TI - Longitudinal Blood Pressure Changes and Kidney Function Decline in Persons Without Chronic Kidney Disease: Findings From the MESA Study. AB - BACKGROUND: While changes in blood pressure (BP) are independently associated with cardiovascular events, less is known about the association between changes in BP and subsequent changes in renal function in adults with an estimated glomerular filtration rate (eGFR) of >60 ml/min/1.73 m2. METHODS: The present study included 3,920 participants in the Multi-Ethnic Study of Atherosclerosis (MESA) study who had >=2 BP measurements during the first 5 years of MESA and had eGFR measurements at both year 5 and 10. Change in BP was estimated as the annualized slope of BP between year 0 and 5 based on linear mixed models (mean number of measurements = 4.0). Participants were then grouped into 1 of 3 categories based on the distribution of systolic BP (SBP), diastolic BP (DBP), and pulse pressure (PP) change (top 20%, middle 21-79%, bottom 20%). We calculated eGFR from cystatin C (ml/min/1.73 m2), estimated annual change in eGFR (ml/min/1.73 m2/year), and defined rapid kidney function decline as a >30% decrease in eGFR from year 5 to 10. We used multivariable logistic regression adjusting for year 0 demographic and clinical characteristics, including eGFR and BP, to determine associations of BP change with rapid kidney function decline. RESULTS: Median age was 59 [interquartile range (IQR): 52, 67] and median eGFR at year 0 was 95.5 (IQR: 81.7, 105.9) ml/min/1.73 m2. Median SBP at year 0 was 111, 121, and 147 mm Hg for increasing, stable, and decreasing SBP change, respectively. Increasing SBP and widening PP change were each associated with higher odds of rapid kidney function decline compared with stable SBP and PP groups, respectively [odds ratio, OR 1.7 (95% confidence interval, CI 1.3, 2.4) for SBP; OR 1.4 (95% CI 1.1, 1.9) for PP]. Decreasing SBP was associated with rapid kidney function decline after adjusting for all covariates except for year 0 BP [OR 1.4 (95% CI 1.0, 1.8)], but this association was no longer statistically significant after adjustment for year 0 BP. There were no significant associations between DBP change and rapid decline in the fully adjusted models. Similar findings were seen with annual change in eGFR. CONCLUSIONS: Increasing SBP and widening PP over time were associated with greater risk for accelerated kidney function decline even at BP levels below established hypertension thresholds. PMID- 29036271 TI - Cancer Hallmarks Analytics Tool (CHAT): a text mining approach to organize and evaluate scientific literature on cancer. AB - Motivation: To understand the molecular mechanisms involved in cancer development, significant efforts are being invested in cancer research. This has resulted in millions of scientific articles. An efficient and thorough review of the existing literature is crucially important to drive new research. This time demanding task can be supported by emerging computational approaches based on text mining which offer a great opportunity to organize and retrieve the desired information efficiently from sizable databases. One way to organize existing knowledge on cancer is to utilize the widely accepted framework of the Hallmarks of Cancer. These hallmarks refer to the alterations in cell behaviour that characterize the cancer cell. Results: We created an extensive Hallmarks of Cancer taxonomy and developed automatic text mining methodology and a tool (CHAT) capable of retrieving and organizing millions of cancer-related references from PubMed into the taxonomy. The efficiency and accuracy of the tool was evaluated intrinsically as well as extrinsically by case studies. The correlations identified by the tool show that it offers a great potential to organize and correctly classify cancer-related literature. Furthermore, the tool can be useful, for example, in identifying hallmarks associated with extrinsic factors, biomarkers and therapeutics targets. Availability and implementation: CHAT can be accessed at: http://chat.lionproject.net. The corpus of hallmark-annotated PubMed abstracts and the software are available at: http://chat.lionproject.net/about. Contact: simon.baker@cl.cam.ac.uk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036272 TI - Lep-MAP3: robust linkage mapping even for low-coverage whole genome sequencing data. AB - Motivation: Accurate and dense linkage maps are useful in family-based linkage and association studies, quantitative trait locus mapping, analysis of genome synteny and other genomic data analyses. Moreover, linkage mapping is one of the best ways to detect errors in de novo genome assemblies, as well as to orient and place assembly contigs within chromosomes. A small mapping cross of tens of individuals will detect many errors where distant parts of the genome are erroneously joined together. With more individuals and markers, even more local errors can be detected and more contigs can be oriented. However, the tools that are currently available for constructing linkage maps are not well suited for large, possible low-coverage, whole genome sequencing datasets. Results: Here we present a linkage mapping software Lep-MAP3, capable of mapping high-throughput whole genome sequencing datasets. Such data allows cost-efficient genotyping of millions of single nucleotide polymorphisms (SNPs) for thousands of individual samples, enabling, among other analyses, comprehensive validation and refinement of de novo genome assemblies. The algorithms of Lep-MAP3 can analyse low-coverage datasets and reduce data filtering and curation on any data. This yields more markers in the final maps with less manual work even on problematic datasets. We demonstrate that Lep-MAP3 obtains very good performance already on 5x sequencing coverage and outperforms the fastest available software on simulated data on accuracy and often on speed. We also construct de novo linkage maps on 7-12x whole-genome data on the Red postman butterfly (Heliconius erato) with almost 3 million markers. Availability and implementation: Lep-MAP3 is available with the source code under GNU general public license from http://sourceforge.net/projects/lep-map3. Contact: pasi.rastas@helsinki.fi. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036273 TI - SCooP: an accurate and fast predictor of protein stability curves as a function of temperature. AB - Motivation: The molecular bases of protein stability remain far from elucidated even though substantial progress has been made through both computational and experimental investigations. One of the most challenging goals is the development of accurate prediction tools of the temperature dependence of the standard folding free energy DeltaG(T). Such predictors have an enormous series of potential applications, which range from drug design in the biopharmaceutical sector to the optimization of enzyme activity for biofuel production. There is thus an important demand for novel, reliable and fast predictors. Results: We present the SCooP algorithm, which is a significant step towards accurate temperature-dependent stability prediction. This automated tool uses the protein structure and the host organism as sole entries and predicts the full T-dependent stability curve of monomeric proteins assumed to follow a two-state folding transition. Equivalently, it predicts all the thermodynamic quantities associated to the folding transition, namely the melting temperature Tm, the standard folding enthalpy DeltaHm measured at Tm, and the standard folding heat capacity DeltaCp. The cross-validated performances are good, with correlation coefficients between predicted and experimental values equal to [0.80, 0.83, 0.72] for DeltaHm, DeltaCp and Tm, respectively, which increase up to [0.88, 0.90, 0.78] upon the removal of 10% outliers. Moreover, the stability curve prediction of a target protein is very fast: it takes less than a minute. SCooP can thus potentially be applied on a structurome scale. This opens new perspectives of large-scale analyses of protein stability, which is of considerable interest for protein engineering. Availability and implementation: The SCooP webserver is freely available at http://babylone.ulb.ac.be/SCooP. Contact: fapucci@ulb.ac.be, jkwasigr@ulb.ac.be or mrooman@ulb.ac.be. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036274 TI - A robust DF-REML framework for variance components estimation in genetic studies. AB - Motivation: In genetic association studies, linear mixed models (LMMs) are used to test for associations between phenotypes and candidate single nucleotide polymorphisms (SNPs). These same models are also used to estimate heritability, which is central not only to evolutionary biology but also to the prediction of the response to selection in plant and animal breeding, as well as the prediction of disease risk in humans. However, when one or more of the underlying assumptions are violated, the estimation of variance components may be compromised and therefore so may the estimates of heritability and any other functions of these. Considering that datasets obtained from real life experiments are prone to several sources of contamination, which usually induce the violation of the assumption of the normality of the errors, a robust derivative-free restricted-maximum likelihood framework (DF-REML) together with a robust coefficient of determination are proposed for the LMM in the context of genetic studies of continuous traits. Results: The proposed approach, in addition to the robust estimation of variance components and robust computation of the coefficient of determination, allows in particular for the robust estimation of SNP-based heritability by reducing the bias and increasing the precision of its estimates. The performance of both classical and robust DF-REML approaches is compared via a Monte Carlo simulation study. Additionally, three examples of application of the methodologies to real datasets are given in order to validate the usefulness of the proposed robust approach. Although the main focus of this article is on plant breeding applications, the proposed methodology is applicable to both human and animal genetic studies. Availability and implementation: Source code implemented in R is available in the Supplementary Material. Contact: vmml@fct.unl.pt. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036275 TI - Porcupine-dependent Wnt activity within the uterine epithelium is essential for fertility. AB - The secretion of mammalian Wnt ligands within the cell is dependent on the activity of Porcupine, a gene located on the X-chromosome that encodes for a membrane-bound O-acyl transferase. Here, we report that postnatal ablation of Porcupine in the uterine luminal epithelium alone results in the decrease in endometrial gland number. Despite having uterine glands, mutant females are completely infertile. Epithelial ablation of Porcupine causes defects in timely apposition of the lumen, along with failure to respond to artificial decidual induction. Interestingly, progesterone supplementation was able to rescue the initiation of decidualization, but the decidua was not maintained and subsequently resorbed. Transcriptome analysis demonstrated that deletion of Porcupine in the epithelium resulted in the stromal dysregulation of members of the Wnt signaling pathway (Lef1, Wnt4, and Wnt16), dysregulation of receptors and ligands in the Notch signaling pathway (Notch1, Notch4, and Dll4) as well as Hoxa10. Our results demonstrate the crucial requirement of Wnt signaling in the epithelium for fertility and demonstrate that epithelial Wnts regulate stromal Wnt gene expression as well as regulating the expression of essential signaling factors and effectors required for successful embryo implantation. PMID- 29036277 TI - PySeqLab: an open source Python package for sequence labeling and segmentation. AB - Motivation: Text and genomic data are composed of sequential tokens, such as words and nucleotides that give rise to higher order syntactic constructs. In this work, we aim at providing a comprehensive Python library implementing conditional random fields (CRFs), a class of probabilistic graphical models, for robust prediction of these constructs from sequential data. Results: Python Sequence Labeling (PySeqLab) is an open source package for performing supervised learning in structured prediction tasks. It implements CRFs models, that is discriminative models from (i) first-order to higher-order linear-chain CRFs, and from (ii) first-order to higher-order semi-Markov CRFs (semi-CRFs). Moreover, it provides multiple learning algorithms for estimating model parameters such as (i) stochastic gradient descent (SGD) and its multiple variations, (ii) structured perceptron with multiple averaging schemes supporting exact and inexact search using 'violation-fixing' framework, (iii) search-based probabilistic online learning algorithm (SAPO) and (iv) an interface for Broyden-Fletcher-Goldfarb Shanno (BFGS) and the limited-memory BFGS algorithms. Viterbi and Viterbi A* are used for inference and decoding of sequences. Using PySeqLab, we built models (classifiers) and evaluated their performance in three different domains: (i) biomedical Natural language processing (NLP), (ii) predictive DNA sequence analysis and (iii) Human activity recognition (HAR). State-of-the-art performance comparable to machine-learning based systems was achieved in the three domains without feature engineering or the use of knowledge sources. Availability and implementation: PySeqLab is available through https://bitbucket.org/A_2/pyseqlab with tutorials and documentation. Contact: ahmed.allam@yale.edu or michael.krauthammer@yale.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036276 TI - Multimorbidity: will it stand the test of time? AB - The concept of multimorbidity has risen in popularity over the past few years. Its use has led to, or coincided with, an increased recognition that patients often have more than one health problem which should not be treated in isolation. The motivation for more holistic, person-centred care that lies behind multimorbidity is to be welcomed. The 2016 National Institute for Health and Care Excellence multimorbidity management guideline helpfully makes recommendations in key areas that are important in the care of patients with complicated medical problems.However, we question the sustainability of the term for the following four reasons: (i) it is doctor and researcher centred rather than patient centred, focusing upon the number of diagnoses rather than the patient's lived experience, (ii) it is not a positive term for patients and is at odds with the move towards promoting active and healthy ageing, (iii) its non-specific nature means it holds little value in daily clinical practice and (iv) most definitions apply to a large segment of the population making it of limited use for health care planners. We argue that the complementary concepts of complexity and frailty would fit better with the delivery of patient centred care for people with multiple co-existing health problems and would be more useful to clinicians, commissioners and researchers. PMID- 29036278 TI - Perceptions of risk and therapy among patients with Barrett's esophagus: a patient survey study. AB - Nondysplastic Barrett's esophagus has a risk of progression to esophageal adenocarcinoma as low as 0.18-0.3% per person per year, and low-grade dysplasia as low as 0.5%. While adherence to guidelines and selection of management options varies, little is known about what modifies patient decision-making. This study aims to evaluate and identify factors that influence patient perceptions of risk and decisions about management. An independently developed and piloted survey was administered to patients at an academic hospital. Risk perception and desire for therapy were assessed using a standard reference gamble paradigm, and responses were stratified based on patient and disease characteristics. Data were analyzed with Student's t and chi-squared tests. A total of 42 of 50 patients with Barrett's esophagus and no prior endoscopic therapy participated (84% response; 76% nondysplastic Barrett's esophagus, 22% low-grade dysplasia, 2% indeterminate for dysplasia; mean age 61 years, 29% female). On average, patients perceived their risk of developing esophageal adenocarcinoma in the next year, 10 years and lifetime as 6, 14, and 19%, respectively. Nearly half viewed their lifetime risk of developing esophageal adenocarcinoma to be the same or higher than diabetes, heart disease, or colon cancer. Although 92% of patients felt surveillance beneficial, only 54% believed endoscopic therapy to be effective in most or all cases. As many as 83% of patients were willing to undergo endoscopic therapy with a hypothetical success rate as low as 70%, and a majority (64%) accepted complication rates up to 30%. Compared to patients with low risk perception of developing esophageal adenocarcinoma, those with high risk perception more often believed their risk for developing esophageal adenocarcinoma was greater than diabetes (p = 0.04) or colon cancer (p = 0.002). Those with lifetime low risk perception were less likely to accept modest complication rates (<10%) of therapy (P < 0.05). Age, gender, degree of dysplasia, lifetime endoscopies and duration of symptoms had no impact on perceived effectiveness of surveillance or therapy, and did not correlate with desire for treatment at varying levels of risk and effectiveness. Patients with Barrett's esophagus overestimate their risk of developing esophageal adenocarcinoma and will accept low success rates and high risk of complications to undergo endoscopic therapy. Baseline risk perception correlates with the desire for endoscopic therapy. PMID- 29036279 TI - Strong inhibition of neutrophil-sperm interaction in cattle by selective phosphatidylinositol 3-kinase inhibitors. AB - The vast majority of sperm are lost from the female reproductive tract in hours following natural mating or artificial insemination in mammals. Multiple complex processes including uterine contractions, mucus barriers, and phagocytosis of sperm by neutrophils have been reported to be involved in the sperm loss, although the contribution of each process is uncertain. If phagocytosis by neutrophils has a significant role in sperm loss, inhibition of neutrophil response to sperm could potentially reduce the dose of sperm required for artificial insemination. Through the development of a quantitative in vitro assay, we have screened 74 candidate compounds for their ability to inhibit the neutrophil-sperm interaction in cattle. Nine inhibitors (GSK2126458, wortmannin, ZSTK474, PIK294, CAL-101, GSK 1059615, GDC-0941, PIK 90 and PI103) active against phosphatidylinositol 3-kinase (PI3-kinase) were most potent, and strongly reduced neutrophil-sperm interaction with an IC50 of 10 nM or less. These inhibitors did not significantly modify sperm motility, and five of the inhibitors did not affect in vitro fertilization. Examination of neutrophil-sperm interaction by time-lapse video microscopy and cell tracking analysis revealed that GSK2126458 may prevent sperm phagocytosis through inhibition of neutrophil movement and/or attachment. Twenty-four other compounds exhibited weaker inhibition (IC50 < 115 MUM), and the rest did not inhibit the neutrophil-sperm interaction. Strong PI3 kinase inhibitors identified in this study may be useful to determine the contribution of neutrophil phagocytosis in the clearance of sperm from the female reproductive tract. PMID- 29036280 TI - Invited Commentary: Sex and Race Differences in Diabetes and Cardiovascular Disease-Achieving the Promise of Sex and Race Subgroup Analyses in Epidemiologic Research. AB - Diabetes confers a higher risk of cardiovascular disease on women than on men. The reasons for these sex differences, such as poorer cardiovascular risk factor profiles, have received considerable attention. However, a recent report on sex * diabetes interactions on cardiovascular disease identified that few if any prior studies have confirmed these sex differences in black individuals, despite known diabetes-related disparities. In this issue of the Journal, George et al. (Am J Epidemiol. 2018;187(3):403-410.) found marginally significant multiplicative sex * diabetes interactions in black but not white study participants after adjustments for traditional and behavioral risk factors, competing risk, and change in diabetes status over time. This study is notable for its attempt to fill an important literature gap, and it elegantly addressed multiple statistical considerations in assessing sex * diabetes interactions according to race strata. The findings also highlighted several important considerations for conducting race and sex subgroup analyses. PMID- 29036281 TI - Changing paradigms in oral anticoagulation during cardioversion in Europe. PMID- 29036282 TI - THE AUTHORS REPLY. PMID- 29036283 TI - The Science of Absent Evidence: Is There Such Thing as an Effective Responsible Drinking Message? AB - Aims: To review the effectiveness of responsible drinking messages (RDMs). Methods: We searched PsycINFO, MEDLINE and Google Scholar to June 2016 for studies evaluating the effectiveness of RDMs. Only eight studies met the inclusion/exclusion criteria. Due to a small number of search results and broad inconsistency in methods and outcome measures, quantitative synthesis was not possible so a narrative summary of findings was conducted. Results: A review of findings from these articles suggested a disjointed approach in terms of the format and content of RDMs evaluated, as well as the dependent variables used to judge their effectiveness. An overall pattern emerged suggesting that RDMs may have beneficial effects across various outcome measures, including reducing prospective alcohol use. However, due to the inconsistent approach to both the development and evaluation of RDMs, it was not possible to draw any clear conclusions in terms of effectiveness, or indeed the potential size of any effects. Conclusions: A systematic approach to the development and evaluation of RDMs is recommended to ensure that a clearer evidence base is established in this area, particularly in light of the substantial public funds which are often spent on RDM campaigns. Short summary: A systematic review of studies evaluating the effectiveness of responsible drinking message campaigns reveals an inconsistent approach to message design and evaluation. Findings of the review suggest the need for a more consistent approach to aid in the development of a clearer evidence base in this area. PMID- 29036285 TI - Relevance of low miR-30c-5p levels in atherogenesis: a promising predictive biomarker and potential therapeutic target. PMID- 29036284 TI - Airway volume analysis: is there a correlation between two and three-dimensions? AB - Objectives: No consensus exists on the assessment of airway in CBCT scans. Two dimensional measures remain the standard in the cephalometric analysis. This research aimed to evaluate linear and area measurements in two-dimensional views from specific airway regions of interest and compare these to the correspondent volume in CBCT exams. Materials and Methods: 250-selected CBCT scans were retrospectively analyzed. A trained and calibrated examiner performed the linear, area and volume measurements in specific sites for nasal cavity, nasopharynx and oropharynx compartments. Dolphin Software was used for the analysis. The correlations were performed using Pearson coefficient. Results: The highest positive correlations were observed in the nasopharynx and oropharynx sagittal areas and the most constricted area in the oropharynx. Nasopharynx linear measures and nasopharynx coronal area did not present correlation with whole volume. Two-dimensional measurements in the soft palate (width and sagittal area) showed very low positive correlations. Although nasal cavity presented highest volume means, changes in oropharynx contributed more to variations in total volume, compared with the other two sections. Conclusion: Airway sagittal areas, as well as the most constricted axial area in oropharynx remains a useful guide to correlate with airway volume in two-dimensional images. PMID- 29036286 TI - Participation rates by educational levels have diverged during 25 years in Finnish health examination surveys. AB - Background: Declining participation rates in health examination surveys may impair the representativeness of surveys and introduce bias into the comparison of results between population groups if participation rates differ between them. Changes in the characteristics of non-participants over time may also limit comparability with earlier surveys. Methods: We studied the association of socio economic position with participation, and its changes over the past 25 years. Occupational class and educational level are used as indicators of socio-economic position. Data from six cross-sectional FINRISK surveys conducted between 1987 and 2012 in Finland were linked to national administrative registers, which allowed investigation of the differences between survey participants and non participants. Results: Our results show that individuals with low occupational class or low level of education were less likely to participate than individuals with high occupational class or high level of education. Participation rates decreased in all subgroups of the population but the decline was fastest among those with low level of education. Conclusions: The differences in participation rates must be taken into account to avoid biased estimates because socio-economic position has also been shown to be strongly related to health, health behaviour and biological risk factors. Particular attention should be paid to the recruitment of the less-educated population groups. PMID- 29036287 TI - powsimR: power analysis for bulk and single cell RNA-seq experiments. AB - Summary: Power analysis is essential to optimize the design of RNA-seq experiments and to assess and compare the power to detect differentially expressed genes in RNA-seq data. PowsimR is a flexible tool to simulate and evaluate differential expression from bulk and especially single-cell RNA-seq data making it suitable for a priori and posterior power analyses. Availability and implementation: The R package and associated tutorial are freely available at https://github.com/bvieth/powsimR. Contact: vieth@bio.lmu.de or hellmann@bio.lmu.de. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036288 TI - Strategies for Partitioning Clock Models in Phylogenomic Dating: Application to the Angiosperm Evolutionary Timescale. AB - Evolutionary timescales can be inferred from molecular sequence data using a Bayesian phylogenetic approach. In these methods, the molecular clock is often calibrated using fossil data. The uncertainty in these fossil calibrations is important because it determines the limiting posterior distribution for divergence-time estimates as the sequence length tends to infinity. Here, we investigate how the accuracy and precision of Bayesian divergence-time estimates improve with the increased clock-partitioning of genome-scale data into clock subsets. We focus on a data set comprising plastome-scale sequences of 52 angiosperm taxa. There was little difference among the Bayesian date estimates whether we chose clock-subsets based on patterns of among-lineage rate heterogeneity or relative rates across genes, or by random assignment. Increasing the degree of clock-partitioning usually led to an improvement in the precision of divergence-time estimates, but this increase was asymptotic to a limit presumably imposed by fossil calibrations. Our clock-partitioning approaches yielded highly precise age estimates for several key nodes in the angiosperm phylogeny. For example, when partitioning the data into 20 clock-subsets based on patterns of among-lineage rate heterogeneity, we inferred crown angiosperms to have arisen 198-178 Ma. This demonstrates that judicious clock-partitioning can improve the precision of molecular dating based on phylogenomic data, but the meaning of this increased precision should be considered critically. PMID- 29036289 TI - VICTOR: genome-based phylogeny and classification of prokaryotic viruses. AB - Motivation: Bacterial and archaeal viruses are crucial for global biogeochemical cycles and might well be game-changing therapeutic agents in the fight against multi-resistant pathogens. Nevertheless, it is still unclear how to best use genome sequence data for a fast, universal and accurate taxonomic classification of such viruses. Results: We here present a novel in silico framework for phylogeny and classification of prokaryotic viruses, in line with the principles of phylogenetic systematics, and using a large reference dataset of officially classified viruses. The resulting trees revealed a high agreement with the classification. Except for low resolution at the family level, the majority of taxa was well supported as monophyletic. Clusters obtained with distance thresholds chosen for maximizing taxonomic agreement appeared phylogenetically reasonable, too. Analysis of an expanded dataset, containing >4000 genomes from public databases, revealed a large number of novel species, genera, subfamilies and families. Availability and implementation: The selected methods are available as the easy-to-use web service 'VICTOR' at https://victor.dsmz.de. Contact: jan.meier-kolthoff@dsmz.de. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036292 TI - Association between implantable cardioverter-defibrillator therapy and different lead positions in patients with cardiac resynchronization therapy. AB - Aims: To evaluate the impact of different right and left ventricular lead positions (RV-LP and LV-LP) on the risk of therapy for ventricular tachycardia/ventricular fibrillation in patients with a cardiac resynchronization therapy device (CRT-D). Methods and results: We performed a large nationwide cohort study on patients in Denmark receiving a CRT-D device from 2008 to 2012 from the Danish Pacemaker and implantable cardioverter defibrillator (ICD) registry. Lead positions were registered during the implantation and categorized as anterior/lateral/posterior and basal/mid-ventricular/apical for the LV-LP, and as apical/non-apical for the RV-LP. Appropriate and inappropriate therapies were registered during follow-up via remote monitoring or at device interrogations. Time to event was summarized with Kaplan-Meier plots, and competed risk regression analysis was used to calculate adjusted hazard ratios (aHR) with 95% confidence intervals (CI). Following variables were included in the analysis: gender, age, heart failure aetiology, New York heart association class, left ventricular ejection fraction, QRS duration, indication (secondary or primary prophylactic), RV-LP, LV-LP, and antiarrhythmic therapy. We included 1643 patients [mean age 68 (+/-10) years, 1343 (83%) men]. After a mean of 2.0 years, 322 (20%) patients received appropriate and 66 (4%) patients received inappropriate therapy. The aHR for appropriate therapy with a non-apical RV-LP was 0.70 95% CI (0.55-0.87, P = 0.002) as compared with an apical. We observed no significant association between appropriate therapy and LV-LP in left anterior oblique or right anterior oblique views or inappropriate therapy between any lead positions. Conclusion: An apical RV-LP is associated with an increased risk of appropriate therapy for ventricular tachyarrhythmia in patients with a CRT-D device. PMID- 29036291 TI - Phylotyper: in silico predictor of gene subtypes. AB - Summary: Whole genome sequencing (WGS) is being adopted in public health for improved surveillance and outbreak analysis. In public health, subtyping has been used to infer phenotypes and distinguish bacterial strain groups. In silico tools that predict subtypes from sequences data are needed to transition historical data to WGS-based protocols. Phylotyper is a novel solution for in silico subtype prediction from gene sequences. Designed for incorporation into WGS pipelines, it is a general prediction tool that can be applied to different subtype schemes. Phylotyper uses phylogeny to model the evolution of the subtype and infer subtypes for unannotated sequences. The phylogenic framework in Phylotyper improves accuracy over approaches based solely on sequence similarity and provides useful contextual feedback. Availability and implementation: Phylotyper is a python and R package. It is available from: https://github.com/superphy/insilico-subtyping. Contact: matthew.whiteside@phac aspc.gc.ca. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036290 TI - Comparative Genomics of Apomictic Root-Knot Nematodes: Hybridization, Ploidy, and Dynamic Genome Change. AB - The root-knot nematodes (genus Meloidogyne) are important plant parasites causing substantial agricultural losses. The Meloidogyne incognita group (MIG) of species, most of which are obligatory apomicts (mitotic parthenogens), are extremely polyphagous and important problems for global agriculture. While understanding the genomic basis for their variable success on different crops could benefit future agriculture, analyses of their genomes are challenging due to complex evolutionary histories that may incorporate hybridization, ploidy changes, and chromosomal fragmentation. Here, we sequence 19 genomes, representing five species of key root-knot nematodes collected from different geographic origins. We show that a hybrid origin that predated speciation within the MIG has resulted in each species possessing two divergent genomic copies. Additionally, the apomictic MIG species are hypotriploids, with a proportion of one genome present in a second copy. The hypotriploid proportion varies among species. The evolutionary history of the MIG genomes is revealed to be very dynamic, with noncrossover recombination both homogenizing the genomic copies, and acting as a mechanism for generating divergence between species. Interestingly, the automictic MIG species M. floridensis differs from the apomict species in that it has become homozygous throughout much of its genome. PMID- 29036294 TI - RealityConvert: a tool for preparing 3D models of biochemical structures for augmented and virtual reality. AB - Motivation: There is a growing interest for the broad use of Augmented Reality (AR) and Virtual Reality (VR) in the fields of bioinformatics and cheminformatics to visualize complex biological and chemical structures. AR and VR technologies allow for stunning and immersive experiences, offering untapped opportunities for both research and education purposes. However, preparing 3D models ready to use for AR and VR is time-consuming and requires a technical expertise that severely limits the development of new contents of potential interest for structural biologists, medicinal chemists, molecular modellers and teachers. Results: Herein we present the RealityConvert software tool and associated website, which allow users to easily convert molecular objects to high quality 3D models directly compatible for AR and VR applications. For chemical structures, in addition to the 3D model generation, RealityConvert also generates image trackers, useful to universally call and anchor that particular 3D model when used in AR applications. The ultimate goal of RealityConvert is to facilitate and boost the development and accessibility of AR and VR contents for bioinformatics and cheminformatics applications. Availability and implementation: http://www.realityconvert.com. Contact: dfourch@ncsu.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036296 TI - Unintended adverse consequences of a clinical decision support system: two cases. AB - Many institutions have implemented clinical decision support systems (CDSSs). While CDSS research papers have focused on benefits of these systems, there is a smaller body of literature showing that CDSSs may also produce unintended adverse consequences (UACs). Detailed here are 2 cases of UACs resulting from a CDSS. Both of these cases were related to external systems that fed data into the CDSS. In the first case, lack of knowledge of data categorization in an external pharmacy system produced a UAC; in the second case, the change of a clinical laboratory instrument produced the UAC. CDSSs rely on data from many external systems. These systems are dynamic and may have changes in hardware, software, vendors, or processes. Such changes can affect the accuracy of CDSSs. These cases point to the need for the CDSS team to be familiar with these external systems. This team (manager and alert builders) should include members in specific clinical specialties with deep knowledge of these external systems. PMID- 29036293 TI - Rare germline variants in known melanoma susceptibility genes in familial melanoma. AB - Known high-risk cutaneous malignant melanoma (CMM) genes account for melanoma risk in <40% of melanoma-prone families, suggesting the existence of additional high-risk genes or perhaps a polygenic mechanism involving multiple genetic modifiers. The goal of this study was to systematically characterize rare germline variants in 42 established melanoma genes among 144 CMM patients in 76 American CMM families without known mutations using data from whole-exome sequencing. We identified 68 rare (<0.1% in public and in-house control datasets) nonsynonymous variants in 25 genes. We technically validated all loss-of function, inframe insertion/deletion, and missense variants predicted as deleterious, and followed them up in 1, 559 population-based CMM cases and 1, 633 controls. Several of these variants showed disease co-segregation within families. Of particular interest, a stopgain variant in TYR was present in five of six CMM cases/obligate gene carriers in one family and a single population based CMM case. A start gain variant in the 5'UTR region of PLA2G6 and a missense variant in ATM were each seen in all three affected people in a single family, respectively. Results from rare variant burden tests showed that familial and population-based CMM patients tended to have higher frequencies of rare germline variants in albinism genes such as TYR, TYRP1, and OCA2 (P < 0.05). Our results suggest that rare nonsynonymous variants in low- or intermediate-risk CMM genes may influence familial CMM predisposition, warranting further investigation of both common and rare variants in genes affecting functionally important pathways (such as melanogenesis) in melanoma risk assessment. PMID- 29036295 TI - Psychotropic medications prescribing trends in adolescents: A nationwide population-based study in Taiwan. AB - Objective: To describe psychotropic medications prescription patterns among adolescents in Taiwan; focusing on age, gender, duration of treatments and various classes of psychotropic medications. Design: A retrospective description analysis. Setting: Taiwan National Health Insurance Database. Participants: Twelve to seventeen years' patients treated with psychotropic medications. Intervention: None. Main Outcome Measure(s): Percentage and duration of treatment with psychotropic medications during the study periods by medication classes and age groups were calculated. In addition, top three prescribed psychotropic medications were also determined. Results: A total of 3,120 patients were prescribed psychotropic drugs. The percentage of adolescent patients that received anxiolytics and antidepressants in 2002-2012 were 2.89% and 2.15%, respectively. Also, 851 patients (1.21%) were prescribed hypnotics and 638 (0.91%) were given sedatives. The prevalence rate of the prescription of psychotropic drugs increased steadily with age and females were more treated than males except antipsychotic. Among psychotropic drugs, antidepressants (mean: 8.6 times) were refilled more but antipsychotics (mean 188 days) were the long-term treatment drugs. Additionally, the trend of hospital visits fluctuated over the year while May and December showed a higher rate of visits. Conclusions: These findings show that the prevalence of psychotropic drug prescriptions in Taiwanese adolescents is even low but increasing trends in the prescription of these medications raises some concern. As the evidence of psychotropic drug safety and effectiveness in adolescents is still inadequate; we recommend that healthcare providers should consider psychotropic drugs therapy, continuously monitor for outcomes and empower their patients to improve their knowledge, therapeutic outcomes and quality of life. PMID- 29036298 TI - myVCF: a desktop application for high-throughput mutations data management. AB - Summary: Next-generation sequencing technologies have become the most powerful tool to discover genetic variants associated with human diseases. Although the dramatic reductions in the costs facilitate the use in the wet-lab and clinics, the huge amount of data generated renders their management by non-expert researchers and physicians extremely difficult. Therefore, there is an urgent need of novel approaches and tools aimed at getting the 'end-users' closer to the sequencing data, facilitating the access by non-bioinformaticians, and to speed up the functional interpretation of genetic variants. We developed myVCF, a standalone, easy-to-use desktop application, which is based on a browser interface and is suitable for Windows, Mac and UNIX systems. myVCF is an efficient platform that is able to manage multiple sequencing projects created from VCF files within the system; stores genetic variants and samples genotypes from an annotated VCF files into a SQLite database; implements a flexible search engine for data exploration, allowing to query for chromosomal region, gene, single variant or dbSNP ID. Besides, myVCF generates a summary statistics report about mutations distribution across samples and across the genome/exome by aggregating the information within the VCF file. In summary, the myVCF platform allows end-users without strong programming and bioinformatics skills to explore, query, visualize and export mutations data in a simple and straightforward way. Availability and implementation: https://apietrelli.github.io/myVCF/. Contact: pietrelli@ingm.org. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036299 TI - Libraries as 'everyday' settings: the Glasgow MCISS project. PMID- 29036297 TI - Genetic Evidence for Sexuality in Cochliopodium (Amoebozoa). AB - Microbial eukaryotes, including amoeboids, display diverse and complex life cycles that may or may not involve sexual reproduction. A recent comprehensive gene inventory study concluded that the Amoebozoa are ancestrally sexual. However, the detection of sex genes in some lineages known for their potentially sexual life cycle was very low. Particularly, the genus Cochliopodium, known to undergo a process of cell fusion, karyogamy, and subsequent fission previously described as parasexual, had no meiosis genes detected. This is likely due to low data representation, given the extensive nuclear fusion observed in the genus. In this study, we generate large amounts of transcriptome data for 2 species of Cochliopodium, known for their high frequency of cellular and nuclear fusion, in order to study the genetic basis of the complex life cycle observed in the genus. We inventory 60 sex-related genes, including 11 meiosis-specific genes, and 31 genes involved in fusion and karyogamy. We find a much higher detection of sex related genes, including 5 meiosis-specific genes not previously detected in Cochliopodium, in this large transcriptome data. The expressed genes form a near complete recombination machinery, indicating that Cochliopodium is an actively recombining sexual lineage. We also find 9 fusion-related genes in Cochliopodium, although no conserved fusion-specific genes were detected in the transcriptomes. Cochliopodium thus likely uses lineage specific genes for the fusion and depolyploidization processes. Our results demonstrate that Cochliopodium possess the genetic toolkit for recombination, while the mechanism involving fusion and genome reduction remains to be elucidated. PMID- 29036300 TI - Bayesian hierarchical modeling based on multisource exchangeability. AB - Bayesian hierarchical models produce shrinkage estimators that can be used as the basis for integrating supplementary data into the analysis of a primary data source. Established approaches should be considered limited, however, because posterior estimation either requires prespecification of a shrinkage weight for each source or relies on the data to inform a single parameter, which determines the extent of influence or shrinkage from all sources, risking considerable bias or minimal borrowing. We introduce multisource exchangeability models (MEMs), a general Bayesian approach for integrating multiple, potentially non-exchangeable, supplemental data sources into the analysis of a primary data source. Our proposed modeling framework yields source-specific smoothing parameters that can be estimated in the presence of the data to facilitate a dynamic multi-resolution smoothed estimator that is asymptotically consistent while reducing the dimensionality of the prior space. When compared with competing Bayesian hierarchical modeling strategies, we demonstrate that MEMs achieve approximately 2.2 times larger median effective supplemental sample size when the supplemental data sources are exchangeable as well as a 56% reduction in bias when there is heterogeneity among the supplemental sources. We illustrate the application of MEMs using a recently completed randomized trial of very low nicotine content cigarettes, which resulted in a 30% improvement in efficiency compared with the standard analysis. PMID- 29036301 TI - The Content Analysis of Gastrodin and Gastrodigenin Obtained by Different Processing Methods. AB - The purpose of this article was to investigate the effects of different processing methods on the content of gastrodin and gastrodigenin in Gastrodia elata Blume, so as to obtain the best processing method of G. elata. The contents of gastrodin and gastrodigenin in the samples were determined by HPLC method in turn. The results showed that the content of gastrodin and gastrodigenin were the highest in the sample obtained by extraction with 50% ethanol after boiling. Therefore, according to the two indexes of gastrodin and gastrodigenin, alcohol extraction after boiling was the best processing method, which could provide the reference for production. PMID- 29036302 TI - A prospective observational study to investigate utility of the Delirium Observational Screening Scale (DOSS) to detect delirium in care home residents. AB - Background: care home residents are particularly at risk of delirium due to high prevalence of dementia. The Delirium Observation Screening Scale (DOSS) identifies behavioural changes associated delirium onset that nursing staff are uniquely placed to recognise. We tested the psychometric properties of the DOSS in UK care homes compared with the Confusion Assessment Method (CAM). Design: prospective observational cohort study performed between 1 March 2015 and 30 June 2016. Setting: nine UK residential and nursing care homes. Subjects: residents over 65 years except those approaching end of life or unable to complete delirium assessments. Methods: the 25-item DOSS was completed daily by care home staff and compared with the temporally closest CAM performed twice per week by trained researchers. Sensitivity, specificity, positive and negative predictive values, diagnostic odds and likelihood ratios were calculated. Results: 216 residents participated; mean age 84.9 (SD 7.9); 50% had cognitive impairment (median AMTS 7 (IQR 3-9)). Half of all expected DOSS assessments occurred (30,201); of these, 11,659 (39%) were complete. 78 positive CAM measurements were made during 71 delirium episodes in 45 residents over 70 weeks. Sensitivity and specificity for delirium detection were optimised at a DOSS cut point of >=5 (sensitivity 0.61 (95% CI: 0.39-0.80) and specificity (0.71 95% CI: 0.70-0.73)). Positive and negative predictive values were 1.6 and 99.5%, respectively. Conclusions: the low sensitivity of the DOSS limits clinical utility for detection of delirium as part of routine care for care home residents, although a negative DOSS affords confidence that delirium is not present. PMID- 29036303 TI - The safety and efficacy of carboplatin plus nanoparticle albumin-bound paclitaxel in the treatment of non-small cell lung cancer patients with interstitial lung disease. AB - Background: The optimal chemotherapy regimen for non-small cell lung cancer patients with interstitial lung disease is unclear. We therefore investigated the safety and efficacy of carboplatin plus nab-paclitaxel as a first-line regimen for non-small cell lung cancer in patients with interstitial lung disease. Methods: We retrospectively reviewed advanced non-small cell lung cancer patients with interstitial lung disease who received carboplatin plus nab-paclitaxel as a first-line chemotherapy regimen at Hyogo Cancer Center between February 2013 and August 2016. interstitial lung disease was diagnosed according to the findings of pretreatment chest high-resolution computed tomography. Results: Twelve patients were included (male, n = 11; female, n = 1). The overall response rate was 67% and the disease control rate was 100%. The median progression free survival was 5.1 months (95% CI: 2.9-8.3 months) and the median overall survival was 14.9 months (95% CI: 4.8-not reached). A chemotherapy-related acute exacerbation of interstitial lung disease was observed in one patient; the extent of this event was Grade 2. There were no treatment-related deaths. Conclusions: Carboplatin plus nab-paclitaxel, as a first-line chemotherapy regimen for non-small cell lung cancer, showed favorable efficacy and safety in patients with preexisting interstitial lung disease. PMID- 29036304 TI - IL-1R and MyD88 signalling in CD4+ T cells promote Th17 immunity and atherosclerosis. AB - Aims: The role of CD4+ T cells in atherosclerosis has been shown to be dependent on cytokine cues that regulate lineage commitment into mature T helper sub-sets. In this study, we tested the roles of IL-1R1 and MyD88 signalling in CD4+ T cells in atherosclerosis. Methods and results: We transferred apoe-/-myd88+/+ or apoe-/ myd88-/- CD4+ T cells to T- and B-cell-deficient rag1-/-apoe-/- mice fed high fat diet. Mice given apoe-/-myd88-/- CD4+ T cells exhibited reduced atherosclerosis compared with mice given apoe-/-myd88+/+ CD4+ T cells. CD4+ T cells from apoe-/ myd88-/- produced less IL-17 but similar levels of IFN-gamma. Treatment of human CD4+ T cells with a MyD88 inhibitor inhibited IL-17 secretion in vitro. Transfer of il1r1-/- CD4+ T cells recapitulated the phenotype seen by transfer of myd88-/- CD4+ T cells with reduced lesion development and a reduction in Th17 and IL-17 production compared with wild type CD4+ T cell recipients. Relative collagen content of lesions was reduced in mice receiving il1r1-/- CD4+ T cells. Conclusion: We demonstrate that both IL1R and MyD88 signalling in CD4+ T cells promote Th17 immunity, plaque growth and may regulate plaque collagen levels. PMID- 29036305 TI - Breeding for cuticle-associated traits in crop species: traits, targets, and strategies. AB - Improving crop productivity and quality while promoting sustainable agriculture have become major goals in plant breeding. The cuticle is a natural film covering the aerial organs of plants and consists of lipid polyesters covered and embedded with wax. The cuticle protects plants against water loss and pathogens and affects traits with strong impacts on crop quality such as, for horticultural crops, fruit brightness, cracking, russeting, netting, and shelf life. Here we provide an overview of the most important cuticle-associated traits that can be targeted for crop improvement. To date, most studies on cuticle-associated traits aimed at crop breeding have been done on fleshy fruits. Less information is available for staple crops such as rice, wheat or maize. Here we present new insights into cuticle formation and properties resulting from the study of genetic resources available for the various crop species. Our review also covers the current strategies and tools aimed at exploiting available natural and artificially induced genetic diversity and the technologies used to transfer the beneficial alleles affecting cuticle-associated traits to commercial varieties. PMID- 29036306 TI - CXXC5 suppresses hepatocellular carcinoma by promoting TGF-beta-induced cell cycle arrest and apoptosis. AB - Evading TGF-beta-mediated growth inhibition is often associated with tumorigenesis in liver, including hepatocellular carcinoma (HCC). To better understand the functions and the underlying molecular mechanisms of TGF-beta in HCC initiation and progression, we carried out transcriptome sequencing (RNA-Seq) to identify the target genes of TGF-beta. CXXC5, a member of the CXXC-type zinc finger domain-containing protein family, was identified as a novel TGF-beta target gene in Hep3B HCC cells. Knockdown of CXXC5 attenuated the expression of a substantial portion of TGF-beta target genes and ameliorated TGF-beta-induced growth inhibition or apoptosis of Hep3B cells, suggesting that CXXC5 is required for TGF-beta-mediated inhibition of HCC progression. Analysis of the TCGA database indicated that CXXC5 expression is reduced in the majority of HCC tissue samples in comparison to that in normal tissues. Furthermore, CXXC5 associates with the histone deacetylase HDAC1 and competes its interaction with Smad2/3, thereby abolishing the inhibitory effect of HDAC1 on TGF-beta signaling. These observations together suggest that CXXC5 may act as a tumor suppressor by promoting TGF-beta signaling via a positive feedback loop, and reveal a strategy for HCC to bypass TGF-beta-mediated cytostasis by disrupting the positive feedback regulation. Our findings shed new light on TGF-beta signaling regulation and demonstrate the function of CXXC5 in HCC development. PMID- 29036307 TI - Irys Extract. AB - Summary: Irys Extract is a software tool for generating genomic information from data collected by the BioNano Genomics Irys platform. The tool allows the user easy access to the raw data in the form of cropped images and genetically aligned intensity profiles. The latter are also made compatible with the BED format for using with popular genomic browsers such as the UCSC Genome Browser. Availability and implementation: Irys Extract has been developed in Matlab R2015a, it was tested to work with IrysView 2.4.0.15879 and AutoDetect 2.1.4.9159, and it currently runs under Microsoft Windows operating systems (7-10). Irys Extract can be downloaded alongside its manual and a demo dataset at http://www.nanobiophotonix.com and https://sites.google.com/site/raniarielly/. Contact: uv@post.tau.ac.il. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036308 TI - High prevalence of arrhythmic and myocardial complications in patients with cardiac glycogenosis due to PRKAG2 mutations: comment. PMID- 29036309 TI - Chiral Analysis of Methamphetamine in Oral Fluid Samples: A Method to Distinguish Licit from Illicit Drug Use. AB - Methamphetamine (MAMP) is a popular illicit drug abused for its central nervous system stimulating effects. MAMP is also used therapeutically in the treatment of overeating disorders, narcolepsy, attention deficit disorder, in over-the-counter (OTC) products to ease nasal congestion. MAMP exists in two enantiomeric forms, dextrorotary (d-MAMP) or levorotary (l-MAMP). The compounds are similar in chemical structure, simply differing in the orientation of functional groups around the asymmetric carbon. In part because of the availability of l-MAMP in OTC nasal inhalers, forensic guidelines require a sample to contain greater than 20% d-MAMP to consider illicit drug use when interpreting results. Standard analytical methods readily detect MAMP in biological specimens but cannot resolve the enantiomeric composition of the sample. Specialized analytical techniques based on chiral separation of the enantiomers are required to differentiate d MAMP from l-MAMP. Our laboratory sought to develop and validate a method for the analysis of oral fluid specimens for d/l-MAMP using a chiral derivatizing agent and traditional reverse phase liquid chromatography tandem mass spectrometry (LC MS-MS). MAMP was extracted from dilute oral fluid samples using Strata-XC solid phase extraction (SPE) cartridges and derivatized with Marfey's reagent. Chromatographic separation was achieved using Zorbax Eclipse Plus C18 columns. Linearity, accuracy and precision, recovery, matrix effects and specificity of the method were all within acceptable criteria. Intraday accuracy ranged from 93.3 to 103.4% and precision 0.1 to 1.6%. Interday accuracy ranged from 90.0 to 103.4% and precision 3.8 to 11.6%. Finally, having previously tested positive for MAMP using non-chiral analysis, 256 de-identified authentic oral fluid samples were analyzed using this validated method. 98% of all samples tested positive for d-MAMP at greater than 20%. PMID- 29036310 TI - Baclofen Self-Poisoning in the Era of Changing Indication: Multicentric Reports to a French Poison Control Centre. AB - Aims: Baclofen has gained interest in treating alcohol use disorder patients. These patients are at risk of voluntary drug intoxications. Understanding the context of baclofen's widespread use for alcohol use disorder, a recent evaluation of the epidemiology, morbidity and mortality of baclofen self poisoning episodes is necessary. Methods: All baclofen self-poisoning reported to the Western France Poison Control Centre between January 2008 and December 2015 were included for analysis in this retrospective study. Baclofen poisoning cases were compared to the 31,859 non-baclofen voluntary poisoning cases declared over the same period. Results: Number of baclofen poisoning grew from 8 cases in 2008 to 91 cases in 2015, attributable to patients purposely treated for alcohol use disorder. Overall, 190 cases were considered: 111 patients (59%) had Glasgow coma score (GCS) <=12 at hospital admission and 77 had GCS > 12 (41%). Eighty patients required mechanical ventilation (42.6%). Neurological severity (GCS <= 12) was associated with seizures (n = 24, 22% vs. n = 2, 3%, P < 0.001). Two patients were deceased at first medical evaluation and three died in the hospital (mortality rate 2.6%). Non-baclofen cases had lower rate of endotracheal intubation (n = 1833, 6%, P < 0.001) and mortality rate (n = 299, 0.1%, P = 0.02). Conclusions: Baclofen self-poisoning cases has risen in recent years due to baclofen intake for alcohol use disorder therapies. The risk-benefit ratio may be evaluated before baclofen is safely prescribed. PMID- 29036311 TI - Do work and family care histories predict health in older women? AB - Background: Social and policy changes in the last several decades have increased women's options for combining paid work with family care. We explored whether specific combinations of work and family care over the lifecourse are associated with variations in women's later life health. Methods: We used sequence analysis to group women in the English Longitudinal Study of Ageing according to their work histories and fertility. Using logistic regression, we tested for group differences in later life disability, depressive symptomology and mortality, while controlling for childhood health and socioeconomic position and a range of adult socio-economic circumstances and health behaviours. Results: Women who transitioned from family care to either part-time work after a short break from the labour force, or to full-time work, reported lower odds of having a disability compared with the reference group of women with children who were mostly employed full-time throughout. Women who shifted from family care to part time work after a long career break had lower odds of mortality than the reference group. Depressive symptoms were not associated with women's work and family care histories. Conclusion: Women's work histories are predictive of their later life disability and mortality. This relationship may be useful in targeting interventions aimed at improving later life health. Further research is necessary to explore the mechanisms linking certain work histories to poorer later life health and to design interventions for those affected. PMID- 29036312 TI - Safety and efficacy of cryoablation vs. radiofrequency ablation of septal accessory pathways: systematic review of the literature and meta-analyses. AB - Aims: Radiofrequency ablation (RFA) of septal accessory pathways (APs) is associated with a significant rate of first procedure failures and complications. Cryoablation is an alternative energy source but there are no studies comparing both ablation techniques. We aimed to systematically review the literature and compare the efficacy and safety of cryoablation vs. RFA of septal APs. Methods and results: We conducted two separate meta-analysis of cryoablation and RFA of septal APs and calculated the global estimates of the efficacy and safety. Sixty four articles were included: 38 articles reporting RFA and 27 articles reporting cryoablation procedures. Additionally, we included the previously non-published cryoablation registry of septal APs performed at our institution. Overall, 4244 septal APs constitute our study population, 3495 in the RFA cohort and 749 in the cryoablation cohort. Acute procedural success rate of cryoablation was 86.0% (95% CI 81.6-89.4%) and RFA 89.0% (95% CI 86.8-91.0%). Recurrence rate of cryoablation was 18.1% (95% CI 14.8-21.8%) and RFA 9.9% (95% CI 8.2-12.0%). Long-term success rate after multiple ablation procedures of cryoablation was 75.9% (95% CI 68.2 82.3%) and RFA 88.4% (95% CI 84.7-91.3%). There were no reported cases of persistent atrioventricular block (AVB) with cryoablation and 2.7% (95% CI 2.2 3.4%) with RFA. Conclusion: Studies of RFA for treatment of septal APs report higher efficacy rates than do studies using cryoablation, but a significantly higher rate of AVB. PMID- 29036313 TI - High Interspecimen Variability in Nucleic Acid Extraction Efficiency Necessitates the Use of Spike-In Control for Accurate qPCR-based Measurement of Plasma Cell Free DNA Levels. AB - Objective: To assess the interspecimen variability associated with plasma DNA extraction in order to provide insight regarding the necessity to use an exogenous spike-in control when measuring cell-free DNA (cfDNA) levels using quantitative polymerase chain reaction (qPCR). Methods: Plasma specimens were obtained from 8 healthy individuals, 20 patients with cardiovascular disease risk factors, and 54 patients diagnosed with acute stroke. Specimens were spiked with an exogenous oligonucleotide fragment, and total DNA was extracted via automated solid phase anion exchange. We determined recovery of the exogenous fragment via qPCR and used this information to calculate DNA extraction efficiency. Results: Plasma DNA extraction efficiencies varied dramatically between specimens, ranging from 22.9% to 88.1%, with a coefficient of variance of 28.9%. No significant differences in DNA extraction efficiencies were observed between patient populations. Conclusions: We strongly recommend the use of an exogenous spike-in control to account for variance in plasma DNA extraction efficiency when assessing cell free DNA (cfDNA) levels by qPCR in future biomarker investigations. PMID- 29036315 TI - Probabilistic Modeling Approach to Reducing Healthcare Costs With Reflex Testing. AB - Objective: Statistical methods can be utilized to optimize the order for reflex diagnostic testing to attenuate patient and hospital costs without affecting quality of care. Our objective is to demonstrate the method of developing an order for testing and to apply this method to an illustrative example. Methods: An algorithm was developed for minimizing costs for any given number of diagnostic tests, and it was retrospectively applied to a sample. Results: The actual scenario of using both tests on all patients was compared to 2 other hypothetical reflex testing approaches: all patients are given 1 test, and those patients who tested negative were then given the second test. The 2 scenarios would have saved 37.1% and 17.4% in testing costs, respectively. Conclusion: These calculations could be applied to numerous situations to reduce costs for patients and hospitals. We propose that this methodology would be best used in conjunction with any existing quality improvement initiatives. PMID- 29036314 TI - Mirnovo: genome-free prediction of microRNAs from small RNA sequencing data and single-cells using decision forests. AB - The discovery of microRNAs (miRNAs) remains an important problem, particularly given the growth of high-throughput sequencing, cell sorting and single cell biology. While a large number of miRNAs have already been annotated, there may well be large numbers of miRNAs that are expressed in very particular cell types and remain elusive. Sequencing allows us to quickly and accurately identify the expression of known miRNAs from small RNA-Seq data. The biogenesis of miRNAs leads to very specific characteristics observed in their sequences. In brief, miRNAs usually have a well-defined 5' end and a more flexible 3' end with the possibility of 3' tailing events, such as uridylation. Previous approaches to the prediction of novel miRNAs usually involve the analysis of structural features of miRNA precursor hairpin sequences obtained from genome sequence. We surmised that it may be possible to identify miRNAs by using these biogenesis features observed directly from sequenced reads, solely or in addition to structural analysis from genome data. To this end, we have developed mirnovo, a machine learning based algorithm, which is able to identify known and novel miRNAs in animals and plants directly from small RNA-Seq data, with or without a reference genome. This method performs comparably to existing tools, however is simpler to use with reduced run time. Its performance and accuracy has been tested on multiple datasets, including species with poorly assembled genomes, RNaseIII (Drosha and/or Dicer) deficient samples and single cells (at both embryonic and adult stage). PMID- 29036317 TI - Quality of local school wellness policies for physical activity and resultant implementation in Pennsylvania schools. AB - Background: In 2006, United States public schools participating in federal school meal programs were required to adopt school wellness policies. The effect of these policies on school nutrition environments is well documented; however, evaluation of physical activity policies has received less investigation. We aimed to evaluate how district wellness policies aligned to practice for physical activity implementation in 40 schools with high obesity rates (>24%). Methods: Wellness policies were evaluated using the validated Wellness School Assessment Tool (WellSAT). Concurrently, schools completed the validated Alliance for a Healthier Generation's Healthy Schools Program (HSP) self-assessment to evaluate physical activity practices. Overall, 13 of 20 physical activity measures from WellSAT and 12 of 13 physical activity measures from HSP were aligned to match policy with practice. Results: Most policy items scored 0 or 1, indicating either 'no mention in the policy' or 'containing weak or vague language'. Corresponding HSP results indicated that school physical activity practices are 'not in place' or 'under development'. A strong, positive, correlation (r = 0.92, P < 0.001) indicated that a significant relationship exists between policy and implementation. Conclusions: Results indicate that most districts currently have weak policies regarding physical activity, limiting the potential to positively influence school-based physical activity. PMID- 29036316 TI - The Role of Small RNA-Based Epigenetic Silencing for Purifying Selection on Transposable Elements in Capsella grandiflora. AB - To avoid negative effects of transposable element (TE) proliferation, plants epigenetically silence TEs using a number of mechanisms, including RNA-directed DNA methylation. These epigenetic modifications can extend outside the boundaries of TE insertions and lead to silencing of nearby genes, resulting in a trade-off between TE silencing and interference with nearby gene regulation. Therefore, purifying selection is expected to remove silenced TE insertions near genes more efficiently and prevent their accumulation within a population. To explore how effects of TE silencing on gene regulation shapes purifying selection on TEs, we analyzed whole genome sequencing data from 166 individuals of a large population of the outcrossing species Capsella grandiflora. We found that most TEs are rare, and in chromosome arms, silenced TEs are exposed to stronger purifying selection than those that are not silenced by 24-nucleotide small RNAs, especially with increasing proximity to genes. An age-of-allele test of neutrality on a subset of TEs supports our inference of purifying selection on silenced TEs, suggesting that our results are robust to varying transposition rates. Our results provide new insights into the processes affecting the accumulation of TEs in an outcrossing species and support the view that epigenetic silencing of TEs results in a trade-off between preventing TE proliferation and interference with nearby gene regulation. We also suggest that in the centromeric and pericentromeric regions, the negative aspects of epigenetic TE silencing are missing. PMID- 29036318 TI - DIMM-SC: a Dirichlet mixture model for clustering droplet-based single cell transcriptomic data. AB - Motivation: Single cell transcriptome sequencing (scRNA-Seq) has become a revolutionary tool to study cellular and molecular processes at single cell resolution. Among existing technologies, the recently developed droplet-based platform enables efficient parallel processing of thousands of single cells with direct counting of transcript copies using Unique Molecular Identifier (UMI). Despite the technology advances, statistical methods and computational tools are still lacking for analyzing droplet-based scRNA-Seq data. Particularly, model based approaches for clustering large-scale single cell transcriptomic data are still under-explored. Results: We developed DIMM-SC, a Dirichlet Mixture Model for clustering droplet-based Single Cell transcriptomic data. This approach explicitly models UMI count data from scRNA-Seq experiments and characterizes variations across different cell clusters via a Dirichlet mixture prior. We performed comprehensive simulations to evaluate DIMM-SC and compared it with existing clustering methods such as K-means, CellTree and Seurat. In addition, we analyzed public scRNA-Seq datasets with known cluster labels and in-house scRNA Seq datasets from a study of systemic sclerosis with prior biological knowledge to benchmark and validate DIMM-SC. Both simulation studies and real data applications demonstrated that overall, DIMM-SC achieves substantially improved clustering accuracy and much lower clustering variability compared to other existing clustering methods. More importantly, as a model-based approach, DIMM-SC is able to quantify the clustering uncertainty for each single cell, facilitating rigorous statistical inference and biological interpretations, which are typically unavailable from existing clustering methods. Availability and implementation: DIMM-SC has been implemented in a user-friendly R package with a detailed tutorial available on www.pitt.edu/~wec47/singlecell.html. Contact: wei.chen@chp.edu or hum@ccf.org. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036319 TI - Discovery of susceptibility loci associated with tuberculosis in Han Chinese. AB - Genome-wide association studies (GWASs) have revealed the worldwide heterogeneity of genetic factors in tuberculosis (TB) susceptibility. Despite having the third highest global TB burden, no TB-related GWAS has been performed in China. Here, we performed the first three-stage GWAS on TB in the Han Chinese population. In the stage 1 (discovery stage), after quality control, 691 388 SNPs present in 972 TB patients and 1537 controls were retained. After replication on an additional 3460 TB patients and 4862 controls (stages 2 and 3), we identified three significant loci associated with TB, the most significant of which was rs4240897 (logistic regression P = 1.41 * 10-11, odds ratio = 0.79). The aforementioned three SNPs were harbored by MFN2, RGS12 and human leukocyte antigen class II beta chain paralogue encoding genes, all of which are candidate immune genes associated with TB. Our findings provide new insight into the genetic background of TB in the Han Chinese population. PMID- 29036320 TI - Detect differentially methylated regions using non-homogeneous hidden Markov model for methylation array data. AB - Motivation: DNA methylation is an important epigenetic mechanism in gene regulation and the detection of differentially methylated regions (DMRs) is enthralling for many disease studies. There are several aspects that we can improve over existing DMR detection methods: (i) methylation statuses of nearby CpG sites are highly correlated, but this fact has seldom been modelled rigorously due to the uneven spacing; (ii) it is practically important to be able to handle both paired and unpaired samples; and (iii) the capability to detect DMRs from a single pair of samples is demanded. Results: We present DMRMark (DMR detection based on non-homogeneous hidden Markov model), a novel Bayesian framework for detecting DMRs from methylation array data. It combines the constrained Gaussian mixture model that incorporates the biological knowledge with the non-homogeneous hidden Markov model that models spatial correlation. Unlike existing methods, our DMR detection is achieved without predefined boundaries or decision windows. Furthermore, our method can detect DMRs from a single pair of samples and can also incorporate unpaired samples. Both simulation studies and real datasets from The Cancer Genome Atlas showed the significant improvement of DMRMark over other methods. Availability and implementation: DMRMark is freely available as an R package at the CRAN R package repository. Contact: xfan@cuhk.edu.hk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036321 TI - Vitamin B12 ameliorates the phenotype of a mouse model of DiGeorge syndrome. PMID- 29036322 TI - tGBS(r) genotyping-by-sequencing enables reliable genotyping of heterozygous loci. AB - Conventional genotyping-by-sequencing (cGBS) strategies suffer from high rates of missing data and genotyping errors, particularly at heterozygous sites. tGBS(r) genotyping-by-sequencing is a novel method of genome reduction that employs two restriction enzymes to generate overhangs in opposite orientations to which (single-strand) oligos rather than (double-stranded) adaptors are ligated. This strategy ensures that only double-digested fragments are amplified and sequenced. The use of oligos avoids the necessity of preparing adaptors and the problems associated with inter-adaptor annealing/ligation. Hence, the tGBS protocol simplifies the preparation of high-quality GBS sequencing libraries. During polymerase chain reaction (PCR) amplification, selective nucleotides included at the 3'-end of the PCR primers result in additional genome reduction as compared to cGBS. By adjusting the number of selective bases, different numbers of genomic sites are targeted for sequencing. Therefore, for equivalent amounts of sequencing, more reads per site are available for SNP calling. Hence, as compared to cGBS, tGBS delivers higher SNP calling accuracy (>97-99%), even at heterozygous sites, less missing data per marker across a population of samples, and an enhanced ability to genotype rare alleles. tGBS is particularly well suited for genomic selection, which often requires the ability to genotype populations of individuals that are heterozygous at many loci. PMID- 29036323 TI - Structural basis for the specific recognition of 18S rRNA by APUM23. AB - PUF (Pumilio/fem-3 mRNA binding factor) proteins, a conserved family of RNA binding proteins, recognize specific single-strand RNA targets in a specific modular way. Although plants have a greater number of PUF protein members than do animal and fungal systems, they have been the subject of fewer structural and functional investigations. The aim of this study was to elucidate the involvement of APUM23, a nucleolar PUF protein in the plant Arabidopsis, in pre-rRNA processing. APUM23 is distinct from classical PUF family proteins, which are located in the cytoplasm and bind to 3'UTRs of mRNA to modulate mRNA expression and localization. We found that the complete RNA target sequence of APUM23 comprises 11 nt in 18S rRNA at positions 1141-1151. The complex structure shows that APUM23 has 10 PUF repeats; it assembles into a C-shape, with an insertion located within the inner concave surface. We found several different RNA recognition features. A notable structural feature of APUM23 is an insertion in the third PUF repeat that participates in nucleotide recognition and maintains the correct conformation of the target RNA. Our findings elucidate the mechanism for APUM23's-specific recognition of 18S rRNA. PMID- 29036325 TI - It's all in the timing: calibrating temporal penalties for biomedical data sharing. AB - Objective: Biomedical science is driven by datasets that are being accumulated at an unprecedented rate, with ever-growing volume and richness. There are various initiatives to make these datasets more widely available to recipients who sign Data Use Certificate agreements, whereby penalties are levied for violations. A particularly popular penalty is the temporary revocation, often for several months, of the recipient's data usage rights. This policy is based on the assumption that the value of biomedical research data depreciates significantly over time; however, no studies have been performed to substantiate this belief. This study investigates whether this assumption holds true and the data science policy implications. Methods: This study tests the hypothesis that the value of data for scientific investigators, in terms of the impact of the publications based on the data, decreases over time. The hypothesis is tested formally through a mixed linear effects model using approximately 1200 publications between 2007 and 2013 that used datasets from the Database of Genotypes and Phenotypes, a data sharing initiative of the National Institutes of Health. Results: The analysis shows that the impact factors for publications based on Database of Genotypes and Phenotypes datasets depreciate in a statistically significant manner. However, we further discover that the depreciation rate is slow, only ~10% per year, on average. Conclusion: The enduring value of data for subsequent studies implies that revoking usage for short periods of time may not sufficiently deter those who would violate Data Use Certificate agreements and that alternative penalty mechanisms may need to be invoked. PMID- 29036324 TI - PancanQTL: systematic identification of cis-eQTLs and trans-eQTLs in 33 cancer types. AB - Expression quantitative trait locus (eQTL) analysis, which links variations in gene expression to genotypes, is essential to understanding gene regulation and to interpreting disease-associated loci. Currently identified eQTLs are mainly in samples of blood and other normal tissues. However, no database comprehensively provides eQTLs in large number of cancer samples. Using the genotype and expression data of 9196 tumor samples in 33 cancer types from The Cancer Genome Atlas (TCGA), we identified 5 606 570 eQTL-gene pairs in the cis-eQTL analysis and 231 210 eQTL-gene pairs in the trans-eQTL analysis. We further performed survival analysis and identified 22 212 eQTLs associated with patient overall survival. Furthermore, we linked the eQTLs to genome-wide association studies (GWAS) data and identified 337 131 eQTLs that overlap with existing GWAS loci. We developed PancanQTL, a user-friendly database (http://bioinfo.life.hust.edu.cn/PancanQTL/), to store cis-eQTLs, trans-eQTLs, survival-associated eQTLs and GWAS-related eQTLs to enable searching, browsing and downloading. PancanQTL could help the research community understand the effects of inherited variants in tumorigenesis and development. PMID- 29036326 TI - Circular RNAs are abundant and dynamically expressed during embryonic muscle development in chickens. AB - The growth and development of skeletal muscle is regulated by proteins as well as non-coding RNAs. Circular RNAs (circRNAs) are universally expressed in various tissues and cell types, and regulate gene expression in eukaryotes. To identify the circRNAs during chicken embryonic skeletal muscle development, leg muscles of female Xinghua (XH) chicken at three developmental time points 11 embryo age (E11), 16 embryo age (E16) and 1 day post hatch (P1) were performed RNA sequencing. We identified 13,377 circRNAs with 3,036 abundantly expressed and most were derived from coding exons. A total of 462 differentially expressed circRNAs were identified (fold change > 2; q-value < 0.05). Parental genes of differentially expressed circRNAs were related to muscle biological processes. There were 946 exonic circRNAs have been found that harbored one or more miRNA binding site for 150 known miRNAs. We validated that circRBFOX2s promoted cell proliferation through interacted with miR-206. These data collectively indicate that circRNAs are abundant and dynamically expressed during embryonic muscle development and could play key roles through sequestering miRNAs as well as other functions. PMID- 29036327 TI - Measurement of incorporation kinetics of non-fluorescent native nucleotides by DNA polymerases using fluorescence microscopy. AB - We describe a method for measuring the single-turnover incorporation kinetics of non-fluorescent native nucleotides by DNA polymerases. Time-lapse total internal reflection fluorescence (TIRF) microscopy is used to directly measure the kinetics of single-base nucleotide incorporation into primed DNA templates covalently attached to the surface of a glass coverslip using a fixed ratio of a native nucleotide and a corresponding fluorescently labeled nucleotide over a series of total nucleotide concentrations. The presence of a labeled nucleotide allows for the kinetics of competitive incorporation reactions by DNA polymerase to be monitored. The single-turnover catalytic rate constants and Michaelis constants of the incorporation of the native nucleotides can be determined by modeling the kinetics of the parallel competitive reactions. Our method enables the measurements of the kinetics parameters of incorporation of native or other non-fluorescent nucleotides without using a rapid stopped-flow or quench-flow instrument and the generally more involved and less quantitative post-reaction analysis of the reaction products. As a demonstration of our method, we systematically determined the single-turnover incorporation kinetics of all four native nucleotides and a set of Cy3-labeled nucleotides by the Klenow fragment of Escherichia coli DNA polymerase I. PMID- 29036328 TI - Phylogeography and Population Genetic Analyses in the Iberian Toothcarp (Aphanius iberus Valenciennes, 1846) at Different Time Scales. AB - Secondary freshwater fish species inhabiting fluctuating and extreme environments are susceptible to changes in dispersion, effective population size, and genetic structure. The Iberian toothcarp Aphanius iberus is an endemic cyprinodontid of the Iberian Peninsula restricted to brackish water of salt marshes and coastal lagoons on the eastern Spanish Mediterranean coast. In this study, we analyzed mitochondrial cytochrome b (cyt b) DNA and microsatellite variation to evaluate ways in which the processes of extinction, dispersal, and colonization of A. iberus across its geographic distribution have affected its population genetic structure over time and space. The A. iberus network reconstruction indicated subtle levels of phylogeographic structuring. This, combined with substantial mitochondrial DNA (mtDNA) genetic diversity, suggests that Pleistocene glaciations had a lesser effect on the demographic structure of its populations than was the case for Iberian freshwater species with a similar distribution. Haplotype network, hierarchical analysis of molecular variance, and pairwise PhiST comparisons involving some Levantine samples showed a relatively high degree of mtDNA differentiation, which could be explained by historical isolation of the Villena Lagoon population. Conversely, significant genetic differentiation that follows an isolation-by-distance pattern, and a reduction in Ne though time was detected with microsatellites, suggesting extensive habitat fragmentation on the Mediterranean coast of the Iberian Peninsula over the past hundreds of years. At a smaller geographical scale (Mar Menor Lagoon), habitat fragmentation, probably due to human activity, appears to have resulted in substantially reduced migration and increased genetic drift, as shown by expanded genetic differentiation of populations. PMID- 29036330 TI - Adding experimental arms to platform clinical trials: randomization procedures and interim analyses. AB - Multi-arm clinical trials use a single control arm to evaluate multiple experimental treatments. In most cases this feature makes multi-arm studies considerably more efficient than two-arm studies. A bottleneck for implementation of a multi-arm trial is the requirement that all experimental treatments have to be available at the enrollment of the first patient. New drugs are rarely at the same stage of development. These limitations motivate our study of statistical methods for adding new experimental arms after a clinical trial has started enrolling patients. We consider both balanced and outcome-adaptive randomization methods for experimental designs that allow investigators to add new arms, discuss their application in a tuberculosis trial, and evaluate the proposed designs using a set of realistic simulation scenarios. Our comparisons include two-arm studies, multi-arm studies, and the proposed class of designs in which new experimental arms are added to the trial at different time points. PMID- 29036329 TI - m6AVar: a database of functional variants involved in m6A modification. AB - Identifying disease-causing variants among a large number of single nucleotide variants (SNVs) is still a major challenge. Recently, N6-methyladenosine (m6A) has become a research hotspot because of its critical roles in many fundamental biological processes and a variety of diseases. Therefore, it is important to evaluate the effect of variants on m6A modification, in order to gain a better understanding of them. Here, we report m6AVar (http://m6avar.renlab.org), a comprehensive database of m6A-associated variants that potentially influence m6A modification, which will help to interpret variants by m6A function. The m6A associated variants were derived from three different m6A sources including miCLIP/PA-m6A-seq experiments (high confidence), MeRIP-Seq experiments (medium confidence) and transcriptome-wide predictions (low confidence). Currently, m6AVar contains 16 132 high, 71 321 medium and 326 915 low confidence level m6A associated variants. We also integrated the RBP-binding regions, miRNA-targets and splicing sites associated with variants to help users investigate the effect of m6A-associated variants on post-transcriptional regulation. Because it integrates the data from genome-wide association studies (GWAS) and ClinVar, m6AVar is also a useful resource for investigating the relationship between the m6A-associated variants and disease. Overall, m6AVar will serve as a useful resource for annotating variants and identifying disease-causing variants. PMID- 29036331 TI - Early Reading Development in Chinese-speaking Children with Hearing Loss. AB - This study aims to explore early reading comprehension in Chinese-speaking children with hearing loss (HL) by examining character recognition and linguistic comprehension. Twenty-five children with HL received three measures relevant to character reading: phonological awareness (PA), morphological awareness (MA), and character recognition; two linguistic-comprehension measures: receptive vocabulary knowledge and listening comprehension; and one reading comprehension measure. Three demographic variables pertinent to children with HL were also taken into account. The results showed that the degree of HL was significantly related to reading comprehension, receptive vocabulary knowledge, and listening comprehension, the latter two of which were further correlated with the type of hearing device; however, the hearing age was associated with neither of the measures. MA made a unique contribution to character reading in the presence of PA, but the reverse was not true. Linguistic comprehension significantly accounted for additional variance in reading comprehension over and above character recognition but not vice versa. A further analysis controlling for character recognition revealed that receptive vocabulary knowledge was more contributive to early reading comprehension than was listening comprehension. The results of the current investigation have potential to inform educational practice in teaching and/or intervening Chinese children with HL regarding their reading skills. PMID- 29036332 TI - Sensitivity to Physical Activity Predicts Daily Activity Among Pain-Free Older Adults. AB - Objective: Prior research indicates that older adults with knee osteoarthritis have increased sensitivity to physical activity (SPA) and respond to physical activities of stable intensity with increases in pain. Whether SPA is present in healthy older adults without chronic pain and predicts functional outcomes remains relatively unexplored. The purpose of this study was to determine the degree of SPA in healthy older adults in response to a standardized walking task, and whether SPA was associated with temporal summation of pain, pain-related fear of movement, and functional outcomes. Methods: Fifty-two older adults without chronic pain completed self-reported measures of activity-related pain and physical function, completed the Six-Minute Walk Test (6MWT), underwent quantitative sensory testing to measure temporal summation of heat pain, and wore an accelerometer for one week to measure physical activity behavior. Subjects rated overall bodily discomfort (0-100 scale) prior to and during each minute of the 6MWT. An SPA index was created by subtracting the initial bodily discomfort ratings from the peak ratings. Results: Repeated-measures analysis of variance indicated that bodily discomfort significantly increased across the walking task, with approximately 60% of the sample experiencing SPA. Hierarchical regressions indicated that greater SPA was associated with fewer average steps per day and greater activity-related pain. Additionally, analyses revealed that temporal summation of pain and pain-related fear of movement significantly predicted the degree of SPA on the walking task. Conclusions: These findings shed light on potential mechanisms underlying SPA in older adults and suggest that SPA might be a risk factor for reduced physical activity. PMID- 29036333 TI - Analysis of primary microRNA loci from nascent transcriptomes reveals regulatory domains governed by chromatin architecture. PMID- 29036335 TI - Period effects in the risk of subsequent labour market marginalisation in young suicide attempters. AB - Background: Suicide attempt in young age is associated with subsequent labour market marginalisation, but little is known about how marginalisation is affected by changes in suicide attempt rates and social insurance legislation and by age differences. Methods: Prospective cohort study based on register linkage of > 2.4 million Swedish residents per birth cohort, aged 19-40 years in 1999; 2004 and 2009, respectively, and followed up for 4 years. Suicide attempters treated in inpatient care in the three years preceding study entry (n > 7000 per cohort) were compared with the general population of the same age without attempt (1987 to end of follow-up). Hazard ratios (HR) and 95% confidence intervals for long term unemployment (>180 days), sickness absence (>90 days) and disability pension were calculated with Cox regression, adjusted for several risk markers. Additional analyses were stratified by age (below/above 30 years). Results: Across all cohorts, suicide attempt was associated with subsequent labour market marginalisation. Estimates were generally highest for disability pension [e.g. 2009 cohort: adjusted (a) HR = 2.7], followed by sickness absence (2009 cohort: aHR = 2.3) and unemployment (2009 cohort: aHR = 1.5). aHRs were higher in the 2004 and 2009 cohorts compared with the 1999 cohort. For disability pension, for example, aHRs were 2.39, 3.90 and 2.68 for the 1999, 2004 and 2009 cohorts, respectively. Stratification revealed marginal age differences. Conclusion: It seems to have become more difficult for suicide attempters to establish themselves on the labour market in later cohorts, which might result from changes in social insurance regulations. There were no considerable age differences. PMID- 29036334 TI - Tet1 facilitates hypoxia tolerance by stabilizing the HIF-alpha proteins independent of its methylcytosine dioxygenase activity. AB - Because of the requirement of oxygen (O2) to produce energy, aerobic organisms developed mechanisms to protect themselves against a shortage of oxygen in both acute status and chronic status. To date, how organisms tolerate acute hypoxia and the underlying mechanisms remain largely unknown. Here, we identify that Tet1, one member of the ten-eleven translocation (TET) family of methylcytosine dioxygenases, is required for hypoxia tolerance in zebrafish and mice. Tet1-null zebrafish and mice are more sensitive to hypoxic conditions compared with their wild-type siblings. We demonstrate that Tet1 stabilizes hypoxia-inducible factor alpha (HIF-alpha) and enhances HIF-alpha transcription activity independent of its enzymatic activity. In addition, we show that Tet1 modulates HIF-2alpha and HIF-1alpha through different mechanisms. Tet1 competes with prolyl hydroxylase protein 2 (PHD2) to bind to HIF-2alpha, resulting in a reduction of HIF-2alpha hydroxylation by PHD2. For HIF-1alpha, however, Tet1 has no effect on HIF-1alpha hydroxylation, but rather it appears to stabilize the C-terminus of HIF-1alpha by affecting lysine site modification. Furthermore, we found that Tet1 enhances rather than prevents poly-ubiquitination on HIF-alpha. Our results reveal a previously unrecognized function of Tet1 independent of its methylcytosine dioxygenase activity in hypoxia signaling. PMID- 29036336 TI - Missed Opportunities for Human Papillomavirus Vaccine Initiation in an Insured Adolescent Female Population. AB - Background: This study assessed the initiation of HPV vaccination in insured adolescent females in relation to physician visits and receipt of other vaccines routinely given at the same age. Methods: January 1, 2010, and September 31, 2015. Vaccination administration was determined by using Current Procedural Terminology codes. A missed opportunity was defined as the absence of an HPV vaccine at the following encounter types: visits with a 4-valent meningococcal conjugate vaccine (MenACWY) or tetanus, diphtheria, and acellular pertussis (Tdap) vaccine claim; well adolescent visits; or any encounter with a primary care provider (PCP). Missed opportunities were stratified by type of provider (pediatrician or nonpediatrician). Results: Among 14588 adolescent girls, only 6098 (41.8%) initiated the HPV vaccine series. HPV vaccine was given at 37.1% of visits when a Tdap or MenACWY vaccine was administered, 26.0% of well adolescent visits and 41.8% of PCP visits. Pediatricians had fewer missed opportunities than nonpediatricians to administer HPV (50.7% vs 60.8%), as well as Tdap, although the difference was larger for Tdap (7.0% vs 29.6%). Conclusions: These data indicate that pediatricians and nonpediatricians alike are missing opportunities to administer the HPV vaccine when other adolescent vaccines are given. Efforts should be focused on converting these missed vaccination opportunities into cancer-prevention visits. PMID- 29036337 TI - A Collection of Mutants for CLE-Peptide-Encoding Genes in Arabidopsis Generated by CRISPR/Cas9-Mediated Gene Targeting. AB - The ligand-receptor-mediated intercellular communication system plays important roles in coordinating developmental and physiological events in multicellular organisms. In plants, CLAVATA3/EMBRYO SURROUNDING REGION (CLE) peptides and their cognate receptors are thought to be involved in various aspects of the plant life cycle. Although the importance of this communication is broadly recognized, most CLE peptides are yet to be functionally characterized. A major problem in research on small signaling peptide-encoding genes is the limited number of loss of-function mutants available due to their small gene size. CRISPR/Cas9-mediated gene targeting has the potential to overcome this problem, as it can be used to generate targeted mutations in essentially any gene, regardless of size. Here we generated a series of mutants of CLE-peptide-encoding genes. Newly generated clv3 and cle40 mutants reproduced the expected mutant phenotypes in the shoot apical meristem and root meristem, respectively. Our results show that CRISPR/Cas9 mediated gene targeting is a powerful tool for genetic analyses, even of small genes. We also report a novel mutant for CLE44 [which is thought to encode a tracheary elements differentiation inhibitory factor (TDIF)] and show that CLE44 contributes to vascular development. The bioresources presented here will be a powerful tool for further characterization of CLE peptides. PMID- 29036338 TI - High prevalence of arrhythmic and myocardial complications in patients with cardiac glycogenosis due to PRKAG2 mutations: Authors' reply. PMID- 29036339 TI - Contribution of major FLM isoforms to temperature-dependent flowering in Arabidopsis thaliana. AB - FLOWERING LOCUS M (FLM), a component of the thermosensory flowering time pathway in Arabidopsis thaliana, is regulated by temperature-dependent alternative splicing (AS). The main splicing variant, FLM-beta, is a well-documented floral repressor that is down-regulated in response to increasing ambient growth temperature. Two hypotheses have been formulated to explain how flowering time is modulated by AS of FLM. In the first model a second splice variant, FLM-delta, acts as a dominant negative isoform that competes with FLM-beta at elevated ambient temperatures, thereby indirectly promoting flowering. Alternatively, it has been suggested that the induction of flowering at elevated temperatures is caused only by reduced FLM-beta expression. To better understand the role of the two FLM splice forms, we employed CRISPR/Cas9 technology to specifically delete the exons that characterize each splice variant. Lines that produced repressive FLM-beta but were incapable of producing FLM-delta were late flowering. In contrast, FLM-beta knockout lines that still produced FLM-delta flowered early, but not earlier than the flm-3 loss of function mutant, as would be expected if FLM-delta had a dominant-negative effect on flowering. Our data support the role of FLM-beta as a flower repressor and provide evidence that a contribution of FLM delta to the regulation of flowering time in wild-type A. thaliana seems unlikely. PMID- 29036341 TI - Nothing in Biology Makes Sense But in the Light of Redox Regulation. PMID- 29036340 TI - 226Ra, 222Rn AND PERMEABILITY OF BELGIAN SOILS IN RELATION WITH INDOOR RADON RISK. AB - Knowing the concentration of 226Ra in soil and of 222Rn in soil gas is important for the analysis of indoor radon data and the prediction of radon-prone areas. Except for soil Rn in Ardenne, the data concerning these two radionuclides in Belgian soils are very scarce. In the context of Master theses and international courses, students made 92 measurements of 226Ra in soil samples, 105 of 222Rn in soil gas, and 74 of soil permeability, a significant addition to the existing similar data. The data are analysed in relation with soil texture, geological units and indoor radon risk. There is no clear correlation between radium in soil and indoor radon risk, the most important factor of risk being soil permeability. PMID- 29036342 TI - The ecophysiology of leaf cuticular transpiration: are cuticular water permeabilities adapted to ecological conditions? AB - When the stomata are closed under drought, the only route for water loss from the leaf interior to the atmosphere is across the cuticle. Thus, the extent of cuticular transpiration in relation to the reservoirs of water in the plant and the water acquisition from the soil determines the fitness and survival of the plant. It is, therefore, widely assumed that the cuticular water permeability of plants regularly experiencing drought is comparatively low and, thus, adapted to the environment. To test this hypothesis, 382 measurements of cuticular permeability from 160 species were extracted from the literature published between 1996 and 2017. The data had been produced either by using isolated cuticles and astomatous leaf sides or by measuring the minimum leaf conductance under conditions assumed to induce maximum stomatal closure. The species were assigned to 11 life form groups. Except for two particular cases (epiphytes, and climbers and lianas), the cuticular permeabilities of all groups either did not differ significantly or the available data did not allow a statistical test. In conclusion, present knowledge either does not support the hypothesis that ecological adaptions of cuticular water permeability exist or the available data are insufficient to test it. PMID- 29036344 TI - Comparison of the in vivo induction and transmission of alpha-synuclein pathology by mutant alpha-synuclein fibril seeds in transgenic mice. AB - Parkinson's disease (PD) is one of many neurodegenerative diseases termed synucleinopathies, neuropathologically defined by inclusions containing aggregated alpha-synuclein (alphaS). alphaS gene (SNCA) mutations can directly cause autosomal dominant PD. In vitro studies demonstrated that SNCA missense mutations may either enhance or diminish alphaS aggregation but cross-seeding of mutant and wild-type alphaS proteins appear to reduce aggregation efficiency. Here, we extended these studies by assessing the effects of seeded alphaS aggregation in alphaS transgenic mice through intracerebral or peripheral injection of various mutant alphaS fibrils. We observed modestly decreased time to paralysis in mice transgenic for human A53T alphaS (line M83) intramuscularly injected with H50Q, G51D or A53E alphaS fibrils relative to wild-type alphaS fibrils. Conversely, E46K alphaS fibril seeding was significantly delayed and less efficient in the same experimental paradigm. However, the amount and distribution of alphaS inclusions in the central nervous system were similar for all alphaS fibril muscle injected mice that developed paralysis. Mice transgenic for human alphaS (line M20) injected in the hippocampus with wild-type, H50Q, G51D or A53E alphaS fibrils displayed induction of alphaS inclusion pathology that increased and spread over time. By comparison, induction of alphaS aggregation following the intrahippocampal injection of E46K alphaS fibrils in M20 mice was much less efficient. These findings show that H50Q, G51D or A53E can efficiently cross-seed and induce alphaS pathology in vivo. In contrast, E46K alphaS fibrils are intrinsically inefficient at seeding alphaS inclusion pathology. Consistent with previous in vitro studies, E46K alphaS polymers are likely distinct aggregated conformers that may represent a unique prion-like strain of alphaS. PMID- 29036345 TI - Phase II study of cabozantinib in patients with progressive glioblastoma: subset analysis of patients with prior antiangiogenic therapy. AB - Background: Cabozantinib is a potent, multitarget inhibitor of MET and vascular endothelial growth factor receptor 2 (VEGFR2). This open-label, phase II trial evaluated cabozantinib in patients with recurrent or progressive glioblastoma (GBM). Methods: Patients were initially enrolled to a starting cabozantinib dose of 140 mg/day, but the starting dose was amended to 100 mg/day because of safety concerns. Treatment continued until disease progression or unacceptable toxicity. The primary endpoint was objective response rate, assessed by an independent radiology facility using modified Response Assessment in Neuro-Oncology criteria. Additional endpoints included duration of response, 6-month and median progression-free survival, overall survival, glucocorticoid use, and safety. Results: Among 222 patients enrolled, 70 had received prior antiangiogenic therapy. Herein, we report results in this subset of 70 patients. The objective response rate was 4.3%, and the median duration of response was 4.2 months. The proportion of patients alive and progression free at 6 months was 8.5%. Median progression-free survival was 2.3 months, and median overall survival was 4.6 months. The most common adverse events reported in all patients, regardless of dose group, included fatigue (74.3%), diarrhea (47.1%), increased alanine aminotransferase (37.1%), headache (35.7%), hypertension (35.7%), and nausea (35.7%); overall, 34 (48.6%) patients experienced adverse events that resulted in dose reductions. Conclusions: Cabozantinib treatment appeared to have modest clinical activity with a 4.3% response rate in patients who had received prior antiangiogenic therapy for GBM. Clinical Trials Registration Number: NCT00704288 (https://www.clinicaltrials.gov/ct2/show/NCT00704288). PMID- 29036347 TI - SIGNAL DECOMPOSITION AND ANALYSIS FOR THE IDENTIFICATION OF PERIODIC AND ANOMALOUS PHENOMENA IN RADON TIME-SERIES. AB - This work concerns continuous monitoring of radon and thoron specific activity in soil gas within the framework of identifying possible anomalies. It is based on the analysis of a medium-term data record obtained from soil gas in an area of geophysical interest. The RaMonA spectrometric system is also used to measure the climatic parameters and a specific analysis of the alpha spectra is performed to better determine the alpha lines intensity. Since radon emission is also influenced by meteorological parameters, it is mandatory to differentiate the changes due to the deep phenomena. Different procedures are utilized to reach the above objective: statistical analysis using the Empirical Mode Decomposition technique, the Multiple Linear Regression method and the Remote Radon Estimation by using of the thoron trend to eliminate the locally produced radon fraction. The results of such methods are compared to recognize and to highlight radon anomalies. PMID- 29036348 TI - CHARACTERISATION OF THE GRAPHITE MODERATED THERMAL NEUTRON FIELD AT CMI. AB - The graphite pile was set up at CMI to provide reference thermal neutron field for metrology and dosimetry purposes. It consists of three Pu-Be and three Am-Be radionuclide sources located in a 1.95 m (width) * 1.95 m (length) * 2.0 m (height) graphite moderator block. The neutron field in the volume of the experimental channel with dimensions of 40 cm * 40 cm * 135 cm (depth) was characterised experimentally and by Monte-Carlo calculations. Neutron fluence was determined by the activation of gold foils and Manganese tablets irradiated in nine different positions and by two 3He detectors of different construction irradiated in one position (bare and covered in three spherical PE moderators of 3, 3.5 and 4 inch diameter). Weighted mean value of the neutron fluence rate measured by all the abovementioned detectors in the pile centre was 2.91 * 104 cm 2 s-1 +/- 1.8%. This value was used as a calibration factor for the Monte-Carlo model predictions. The neutron spectral fluence rate calculated by validated Monte-Carlo model was used to determine the conventionally true ambient and personal dose equivalent rates at different positions. PMID- 29036346 TI - Opbp is a new architectural/insulator protein required for ribosomal gene expression. AB - A special class of poorly characterized architectural proteins is required for chromatin topology and enhancer-promoter interactions. Here, we identify Opbp as a new Drosophila architectural protein, interacting with CP190 both in vivo and in vitro. Opbp binds to a very restrictive set of genomic regions, through a rare sequence specific motif. These sites are co-bound by CP190 in vivo, and generally located at bidirectional promoters of ribosomal protein genes. We show that Opbp is essential for viability, and loss of opbp function, or destruction of its motif, leads to reduced ribosomal protein gene expression, indicating a functional role in promoter activation. As characteristic of architectural/insulator proteins, the Opbp motif is sufficient for distance dependent reporter gene activation and enhancer-blocking activity, suggesting an Opbp-mediated enhancer-promoter interaction. Rather than having a constitutive role, Opbp represents a new type of architectural protein with a very restricted, yet essential, function in regulation of housekeeping gene expression. PMID- 29036349 TI - Seasonal variations as predictive factors of the comet assay parameters: a retrospective study. AB - Since there are several predicting factors associated with the comet assay parameters, we have decided to assess the impact of seasonal variations on the comet assay results. A total of 162 volunteers were retrospectively studied, based on the date when blood donations were made. The groups (winter, spring, summer and autumn) were matched in terms of age, gender, smoking status, body mass index and medical diagnostic exposure in order to minimise the impact of other possible predictors. Means and medians of the comet assay parameters were higher when blood was sampled in the warmer period of the year, the values of parameters being the highest during summer. Correlation of meteorological data (air temperature, sun radiation and sun insolation) was observed when data were presented as the median per person. Using multivariate analysis, sampling season and exposure to medical radiation were proved to be the most influential predictors for the comet assay parameters. Taken together, seasonal variation is another variable that needs to be accounted for when conducting a cohort study. Further studies are needed in order to improve the statistical power of the results related to the impact of sun radiation, air temperature and sun insolation on the comet assay parameters. PMID- 29036350 TI - Prevalence of Hypertension Defined by Central Blood Pressure Measured Using a Type II Device in a Nationally Representative Cohort. AB - OBJECTIVES: Central blood pressure (BP) can be used to define hypertension. A central BP approach may be more sensitive than a conventional brachial BP approach in detecting hypertension. We aimed to compare the 2 approaches in estimating the prevalence hypertension in a nationally representative population. METHODS: A total of 2,742 adults older than 19 years participated in the 2013 2016 National Nutrition and Health Survey in Taiwan. Central and brachial BP were simultaneously measured using a cuff-based stand-alone central BP monitor purporting to measure invasive central BP (type II device). Central hypertension was defined by central systolic (SBP)/diastolic BP (DBP) >=130 or 90 mm Hg or using antihypertensive medications, and brachial hypertension was defined by brachial SBP/DBP >=140 or 90 mm Hg or using antihypertensive medications. RESULTS: The World Health Organization-standardized and national weighted prevalence rates of central hypertension were 27.95% and 32.48%, respectively, and both were significantly higher than those of brachial hypertension (20.80% and 25.43%, both P < 0.001). The national weighted prevalence rates of concordant central and brachial hypertension, concordant central and brachial nonhypertension, isolated central hypertension, and isolated brachial hypertension were 25.13%, 67.22%, 7.35%, and 0.30%, respectively. Most subjects with the isolated central hypertension (97%) were within the range of brachial prehypertension, but only 38.0% of subject with brachial prehypertension had central hypertension. CONCLUSION: Almost one-third of a nationally representative population had hypertension detected by a central BP approach. Hypertension detection using a conventional brachial BP approach may underestimate the prevalence of hypertension and result in a less effective hypertension control. PMID- 29036351 TI - miRandola 2017: a curated knowledge base of non-invasive biomarkers. AB - miRandola (http://mirandola.iit.cnr.it/) is a database of extracellular non coding RNAs (ncRNAs) that was initially published in 2012, foreseeing the relevance of ncRNAs as non-invasive biomarkers. An increasing amount of experimental evidence shows that ncRNAs are frequently dysregulated in diseases. Further, ncRNAs have been discovered in different extracellular forms, such as exosomes, which circulate in human body fluids. Thus, miRandola 2017 is an effort to update and collect the accumulating information on extracellular ncRNAs that is spread across scientific publications and different databases. Data are manually curated from 314 articles that describe miRNAs, long non-coding RNAs and circular RNAs. Fourteen organisms are now included in the database, and associations of ncRNAs with 25 drugs, 47 sample types and 197 diseases. miRandola also classifies extracellular RNAs based on their extracellular form: Argonaute2 protein, exosome, microvesicle, microparticle, membrane vesicle, high density lipoprotein and circulating. We also implemented a new web interface to improve the user experience. PMID- 29036352 TI - Environmental Plasticity in the Intersexual Correlation and Sex Bias of Gene Expression. AB - Intersexual genetic correlations are expected to constrain the evolution of sexual dimorphic traits, including the degree of sex-biased gene expression. Consistent with that expectation, studies in fruit flies and birds have reported that genes whose expression has a strong intersexual genetic correlation (rMF) show a lower level of sex-biased expression (SBE). However, it is known that both rMF and SBE can be affected by the environment. It is therefore unclear whether there is a consistent relationship between these 2 quantities across multiple environments. In this paper, we study this relationship in the African malaria mosquito Anopheles gambiae. We show that both rMF and SBE change between environments. The change in SBE across environments is significantly correlated with dN/dS: greater changes in SBE are associated with higher values of dN/dS. Furthermore, the relationship between rMF and SBE is sensitive to the environment. We conclude that this relationship is sufficiently plastic that environmental effects should be considered in future studies. PMID- 29036353 TI - Structural insights into RNA unwinding and degradation by RNase R. AB - RNase R is a conserved exoribonuclease in the RNase II family that primarily participates in RNA decay in all kingdoms of life. RNase R degrades duplex RNA with a 3' overhang, suggesting that it has RNA unwinding activity in addition to its 3'-to-5' exoribonuclease activity. However, how RNase R coordinates RNA binding with unwinding to degrade RNA remains elusive. Here, we report the crystal structure of a truncated form of Escherichia coli RNase R (residues 87 725) at a resolution of 1.85 A. Structural comparisons with other RNase II family proteins reveal two open RNA-binding channels in RNase R and suggest a tri-helix 'wedge' region in the RNB domain that may induce RNA unwinding. We constructed two tri-helix wedge mutants and they indeed lost their RNA unwinding but not RNA binding or degrading activities. Our results suggest that the duplex RNA with an overhang is bound in the two RNA-binding channels in RNase R. The 3' overhang is threaded into the active site and the duplex RNA is unwound upon reaching the wedge region during RNA degradation. Thus, RNase R is a proficient enzyme, capable of concurrently binding, unwinding and degrading structured RNA in a highly processive manner during RNA decay. PMID- 29036354 TI - PLncPRO for prediction of long non-coding RNAs (lncRNAs) in plants and its application for discovery of abiotic stress-responsive lncRNAs in rice and chickpea. AB - Long non-coding RNAs (lncRNAs) make up a significant portion of non-coding RNAs and are involved in a variety of biological processes. Accurate identification/annotation of lncRNAs is the primary step for gaining deeper insights into their functions. In this study, we report a novel tool, PLncPRO, for prediction of lncRNAs in plants using transcriptome data. PLncPRO is based on machine learning and uses random forest algorithm to classify coding and long non coding transcripts. PLncPRO has better prediction accuracy as compared to other existing tools and is particularly well-suited for plants. We developed consensus models for dicots and monocots to facilitate prediction of lncRNAs in non model/orphan plants. The performance of PLncPRO was quite better with vertebrate transcriptome data as well. Using PLncPRO, we discovered 3714 and 3457 high confidence lncRNAs in rice and chickpea, respectively, under drought or salinity stress conditions. We investigated different characteristics and differential expression under drought/salinity stress conditions, and validated lncRNAs via RT qPCR. Overall, we developed a new tool for the prediction of lncRNAs in plants and showed its utility via identification of lncRNAs in rice and chickpea. PMID- 29036356 TI - Lipopolysaccharide promotes angiogenesis in mice model of HCC by stimulating hepatic stellate cell activation via TLR4 pathway. AB - Angiogenesis plays a key role in the progression of hepatocellular carcinoma (HCC). This study aimed to investigate whether lipopolysaccharide (LPS) could promote HCC angiogenesis and the role of hepatic stellate cell (HSC) in this process. In vivo orthotopic HCC model and the effect of LPS on HSC in vitro were studied. Our results demonstrated that LPS-induced HSC activation during the promotion of HCC growth and angiogenesis in mice. The LPS-TLR4 (Toll-like receptor 4) pathway in HSC is responsible for HCC angiogenesis. LPS-induced secretion of pro-angiogenic factors from HSC could promote endothelial cell migration and tubulogenesis. This study suggests that LPS acts with HSC in tumor stroma and promotes the secretion of pro-angiogenic factors that increase angiogenesis in HCC. PMID- 29036355 TI - Design and implementation of a synthetic pre-miR switch for controlling miRNA biogenesis in mammals. AB - Synthetic RNA-based systems have increasingly been used for the regulation of eukaryotic gene expression. Due to their structural properties, riboregulators provide a convenient basis for the development of ligand-dependent controllable systems. Here, we demonstrate reversible conditional control of miRNA biogenesis with an aptamer domain as a sensing unit connected to a natural miRNA precursor for the first time. For the design of the pre-miR switch, we replaced the natural terminal loop with the TetR aptamer. Thus, the TetR aptamer was positioned close to the Dicer cleavage sites, which allowed sterical control over pre-miR processing by Dicer. Our design proved to be highly versatile, allowing us to regulate the biogenesis of three structurally different miRNAs: miR-126, -34a and -199a. Dicer cleavage was inhibited up to 143-fold via co-expression of the TetR protein, yet could be completely restored upon addition of doxycycline. Moreover, we showed the functionality of the pre-miR switches for gene regulation through the interaction of the respective miRNA with its specific target sequence. Our designed device is capable of robust and reversible control of miRNA abundance. Thus, we offer a novel investigational tool for functional miRNA analysis. PMID- 29036357 TI - Chronic magnesium deficiency and human disease; time for reappraisal? AB - Numerous epidemiological, experimental and clinical studies over the last 30 years have consistently shown that chronic magnesium deficiency is associated with and/or exacerbates a number of major disorders (Table 1). Yet chronic magnesium deficiency is not widely recognized and a major reason for this failure is that serum magnesium levels do not accurately reflect body magnesium stores. Specifically, in chronic magnesium deficiency, serum magnesium levels are often within the normal reference range (usually lowest quartile) and may not progress to overt hypomagnesaemia. This raises serious questions namely (i) should chronic magnesium deficiency be considered in high-risk patients irrespective of serum magnesium, even when 'normal'? and (ii) if recognized, should oral magnesium supplement be given to restore body stores? Appreciating the vital role of magnesium for normal cellular function and bone health may help in formulating a well-considered and justifiable approach to these questions. Pragmatic tests for assessing magnesium status in the adult are suggested and discussed. PMID- 29036359 TI - proFIA: a data preprocessing workflow for flow injection analysis coupled to high resolution mass spectrometry. AB - Motivation: Flow Injection Analysis coupled to High-Resolution Mass Spectrometry (FIA-HRMS) is a promising approach for high-throughput metabolomics. FIA-HRMS data, however, cannot be preprocessed with current software tools which rely on liquid chromatography separation, or handle low resolution data only. Results: We thus developed the proFIA package, which implements a suite of innovative algorithms to preprocess FIA-HRMS raw files, and generates the table of peak intensities. The workflow consists of 3 steps: (i) noise estimation, peak detection and quantification, (ii) peak grouping across samples and (iii) missing value imputation. In addition, we have implemented a new indicator to quantify the potential alteration of the feature peak shape due to matrix effect. The preprocessing is fast (less than 15 s per file), and the value of the main parameters (ppm and dmz) can be easily inferred from the mass resolution of the instrument. Application to two metabolomics datasets (including spiked serum samples) showed high precision (96%) and recall (98%) compared with manual integration. These results demonstrate that proFIA achieves very efficient and robust detection and quantification of FIA-HRMS data, and opens new opportunities for high-throughput phenotyping. Availability and implementation: The proFIA software (as well as the plasFIA dataset) is available as an R package on the Bioconductor repository (http://bioconductor.org/packages/proFIA), and as a Galaxy module on the Main Toolshed (https://toolshed.g2.bx.psu.edu), and on the Workflow4Metabolomics online infrastructure (http://workflow4metabolomics.org). Contact: alexis.delabriere@cea.fr or etienne.thevenot@cea.fr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036358 TI - Divergent effects of oxytocin on (para-)limbic reactivity to emotional and neutral scenes in females with and without borderline personality disorder. AB - Borderline personality disorder (BPD) patients' hypersensitivity for emotionally relevant stimuli has been suggested be due to abnormal activity and connectivity in (para-)limbic and prefrontal brain regions during stimulus processing. The neuropeptide oxytocin has been shown to modulate activity and functional connectivity in these brain regions, thereby optimizing the processing of emotional and neutral stimuli. To investigate whether oxytocin would be capable of attenuating BPD patients' hypersensitivity for such stimuli, we recorded brain activity and gaze behavior during the processing of complex scenes in 51 females with and 48 without BPD after intranasal application of either oxytocin or placebo. We found divergent effects of oxytocin on BPD and healthy control (HC) participants' (para-)limbic reactivity to emotional and neutral scenes: Oxytocin decreased amygdala and insula reactivity in BPD participants but increased it in HC participants, indicating an oxytocin-induced normalization of amygdala and insula activity during scene processing. In addition, oxytocin normalized the abnormal coupling between amygdala activity and gaze behavior across all scenes in BPD participants. Overall, these findings suggest that oxytocin may be capable of attenuating BPD patients' hypersensitivity for complex scenes, irrespective of their valence. PMID- 29036360 TI - Subcellular localization and interactions among rubber particle proteins from Hevea brasiliensis. AB - Natural rubber (polyisoprene) from the rubber tree Hevea brasiliensis is synthesized by specialized cells called laticifers. It is not clear how rubber particles arise, although one hypothesis is that they derive from the endoplasmic reticulum (ER) membrane. Here we cloned the genes encoding four key proteins found in association with rubber particles and studied their intracellular localization by transient expression in Nicotiana benthamiana leaves. We show that, while the cis-prenyltransferase (CPT), responsible for the synthesis of long polyisoprene chains, is a soluble, cytosolic protein, other rubber particle proteins such as rubber elongation factor (REF), small rubber particle protein (SRPP) and Hevea rubber transferase 1-REF bridging protein (HRBP) are associated with the endoplasmic reticulum (ER). We also show that SRPP can recruit CPT to the ER and that interaction of CPT with HRBP leads to both proteins relocating to the plasma membrane. We discuss these results in the context of the biogenesis of rubber particles. PMID- 29036361 TI - Chronic Pain and Neuropathy Following Adjuvant Chemotherapy. AB - Objective: To determine symptoms and characteristics of chronic sensory neuropathy in patients treated with oxaliplatin and docetaxel, including patterns of somatosensory abnormalities, pain descriptors, and psychological functioning. Design: A retrospective cross-sectional study. Setting: A chronic pain research center. Subjects: Thirty-eight patients with chronic peripheral pain and/or dysesthesia following chemotherapy. Methods: Sensory profiles, psychological functioning, and quality of life were assessed using standardized questionnaires. In addition, standardized quantitative sensory testing and nerve conduction studies were carried out. Results: The sensory profiles and clinical symptoms were very similar in the two groups. Pricking, numbness, and burning were common descriptors in both groups, and the predominant finding was sensory loss to A beta-mediated sensory modalities with decreased mechanical and vibration detection thresholds. A high frequency of abnormalities in thermal sensory limen and the presence of paradoxical heat sensation seem to be sensitive markers of small fiber loss. Both groups had mainly sensory, axonal large fiber or mixed fiber polyneuropathy, which tended to be most severe in the oxaliplatin group. Conclusions: Both oxaliplatin-induced and docetaxel-induced polyneuropathies represent a significant problem that affects the daily life of the patients. Our results, defining the somatosensory phenotype, can improve the understanding of the pathophysiological mechanisms useful for future studies in the tailored treatment of prevention of chemotherapy-induced peripheral neuropathy and pain. PMID- 29036362 TI - CUX1 stimulates APE1 enzymatic activity and increases the resistance of glioblastoma cells to the mono-alkylating agent temozolomide. AB - Background: Cut Like homeobox 1 (CUX1), which encodes an auxiliary factor in base excision repair, resides on 7q22.1, the most frequently and highly amplified chromosomal region in glioblastomas. The resistance of glioblastoma cells to the mono-alkylating agent temozolomide is determined to some extent by the activity of apurinic/apyrimidinic endonuclease 1 (APE1). Methods: To monitor the effect of CUX1 and its CUT domains on APE1 activity, DNA repair assays were performed with purified proteins and cell extracts. CUX1 protein expression was analyzed by immunohistochemistry using a tumor microarray of 150 glioblastoma samples. The effect of CUX1 knockdown and overexpression on the resistance of glioblastoma cell lines to temozolomide was investigated. Results: We show that CUT domains stimulate APE1 activity. In agreement with these findings, CUX1 knockdown causes an increase in the number of abasic sites in genomic DNA and a decrease in APE1 activity as measured in cell extracts. Conversely, ectopic CUX1 expression increases APE1 activity and lowers the number of abasic sites. Having established that CUX1 is expressed at high levels in most glioblastomas, we next show that the resistance of glioblastoma cells to temozolomide and to a combined treatment of temozolomide and ionizing radiation is reduced following CUX1 knockdown, but increased by overexpression of CUX1 or a short protein containing only 2 CUT domains, which is active in DNA repair but devoid of transcriptional activity. Conclusion: These findings indicate that CUX1 expression level impacts on the response of glioblastoma cells to treatment and identifies the CUT domains as potential therapeutic targets. PMID- 29036363 TI - Predictive Ability of Intermittent Daily Sickle Cell Pain Assessment: The PiSCES Project. AB - Background: Pain diary assessment in sickle cell disease (SCD) may be expensive and impose a high respondent burden. Objective: To report whether intermittent assessment could substitute for continuous daily pain assessment in SCD. Design: Prospective cohort study. Setting: Academic and community practices in Virginia. Patients. A total of 125 SCD patients age 16 years or older in the Pain in Sickle Cell Epidemiology Study. Measurements. Using pain measures that summarized all diaries as the gold standard, we tested the statistical equivalence of four alternative strategies that summarized diaries only from the week prior or the month prior to study completion; one week per month; or one day per week (random day). Summary measures included percent pain days, percent crisis days (self defined), mean pain (0-9 Likert scale) on all days, and mean pain on pain days. Equivalence tests included comparisons of means, regression intercepts, and slopes, as well as measurement of R2. Results: Compared with the gold standard, the one-day-per-week and one-week-per-month strategies yielded statistically equivalent means of six summary pain measures, and the week prior and month prior yielded equivalent means as some of the measures. Regression showed statistically equivalent slopes and intercepts to the gold standard using one-day-per-week and one-week-per-month strategies for percent pain days and percent crisis days, but almost no other equivalence. R2 values ranged from 0.64 to 0.989. Conclusions: It is possible to simulate five- to six-month daily assessment of pain in SCD. Either one-day-per-week or one-week-per-month assessment yields an equivalent mean and fair regression equivalence. PMID- 29036364 TI - NANODOSIMETRY: TOWARDS A NEW CONCEPT OF RADIATION QUALITY. AB - The biological action of ionizing charged particles is initiated at the DNA level, and the effectiveness with which the initial physical effect changes into measurable biological damage is likely ruled by the stochastics of ionizations produced by the incident ions in subcellular nanometric volumes. Based on this hypothesis, experimental nanodosimetry aims at establishing a new concept of radiation quality that builds on measurable characteristics of the particle track structure at the nanometer scale. Three different nanodosimetric detection systems have been developed to date that allow measurements of the number of ionizations produced by the passage of a primary particle in a nanometer-size gas volume (in unit density scale). Within the Italian project MITRA (MIcrodosimetry and TRAck structure), funded by the Italian Istituto Nazionale di Fisica Nucleare (INFN) and the EMRP Joint Research Project 'BioQuaRT' (Biologically Weighted Quantities in Radiotherapy), experiments have been carried out, in which the frequency distribution of ionizations produced by proton and carbon ion beams of given energy was measured with the three nanodosimetric detectors. Descriptors of the track structure can be derived from these distributions. In particular, the first moment M1, representing the mean number of ionizations produced in the target volume, and the cumulative probability Fk of measuring a number nu >= k of ionizations. The correlation between measured nanodosimetric quantities and experimental radiobiological data available in the literature is here presented and discussed. PMID- 29036365 TI - The developmental origin and compartmentalization of glutathione-s-transferase omega 2 isoforms in the perinuclear theca of eutherian spermatozoa. AB - The perinuclear theca (PT) is a condensed, nonionic detergent resistant cytosolic protein layer encapsulating the sperm head nucleus. It can be divided into two regions: the subacrosomal layer, whose proteins are involved in acrosomal assembly during spermiogenesis, and the postacrosomal sheath (PAS), whose proteins are implicated in sperm-oocyte interactions during fertilization. In continuation of our proteomic analysis of the PT, we have isolated two prominent PT-derived proteins of 28 and 31 kDa from demembranated bovine sperm head fractions. These proteins were identified by mass spectrometry as isoforms of glutathione-s-transferase omega 2 (GSTO2). Immunoblots probed with anti-GSTO2 antibodies confirmed the presence of the GSTO2 isoforms in these fractions while fluorescent immunocytochemistry localized the isoforms to the PAS region of the bull, boar, and murid PT. In addition to the PAS labeling of GSTO2, the performatorium of murid spermatozoa was also labeled. Immunohistochemistry of rat testes revealed that GSTO2 was expressed in the third phase of spermatogenesis (i.e., spermiogenesis) and assembled in the PAS and perforatorial regions of late elongating spermatids. Fluorescent immunocytochemistry performed on murine testis cells co-localized GSTO2 and tubulin on the transient microtubular-manchette of elongating spermatids. These findings imply that GSTO2 is transported and deposited in the PAS region by the manchette, conforming to the pattern of assembly found with other PAS proteins. The late assembly of GSTO2 and its localization in the PAS suggests a role in regulating the oxidative and reductive state of covalently linked spermatid/sperm proteins, especially during the disassembly of the sperm accessory structures after fertilization. PMID- 29036366 TI - Accounting for Selectivity Bias and Correlation Across the Sequence From Elevated Blood Pressure to Hypertension Diagnosis and Treatment. AB - BACKGROUND: It is unknown whether efforts to reduce hypertension burden in countries with very high prevalence, would be more effective if directed at hypertension diagnosis vs. treatment. Most analyses do not address bias and correlation across the sequence from elevated blood pressure (BP) to hypertension diagnosis and treatment, leading to potentially misleading findings. METHODS: Using data spanning 18 years of the China Health and Nutrition Survey (n = 18,926; ages 18-75 years), we used an innovative 3-step, integrated system of equations to predict the sequence from: (i) elevated BP (systolic/diastolic BP >= 140/90 mm Hg) to (ii) diagnosed hypertension conditional on elevated BP, and to (iii) treatment (medication use) conditional on diagnosis, accounting for measured and unmeasured individual- and community-level confounders at each of the 3 steps. We compared results to separate traditional logistic regression models without control for unmeasured confounding. RESULTS: Using our 3-step model, elevated BP increased from 12.6% and 8.5% (1991) to 36.8% and 29% (2009) in men and women, respectively, but diagnosis remained under 50%. We found widening disparities in hypertension diagnosis (higher hypertension at lower vs. higher education (difference of 2% in 1991 that widened to 5% in 2009)) and narrowing disparities in education (difference of 6% in 1991 to 4% in 2009) and insurance status (difference of 7% in 1991 to 2% in 2009) for treatment. CONCLUSIONS: Our 3-step model improved model fit over traditionally used models. Our findings highlight serious barriers to hypertension diagnosis in Chinese adults, particularly among men and individuals of low attained education. PMID- 29036367 TI - Phenylalanine as a nitrogen source induces root growth and nitrogen-use efficiency in Populus * canescens. AB - To investigate the physiological responses of poplars to amino acids as sole nitrogen (N) sources, Populus * canescens (Ait.) Smith plants were supplied with one of three nitrogen fertilizers (NH4NO3, phenylalanine (Phe) or the mixture of NH4NO3 and Phe) in sand culture. A larger root system, and decreased leaf size and CO2 assimilation rate was observed in Phe- versus NH4NO3-treated poplars. Consistently, a greater root biomass and a decreased shoot growth were detected in Phe-supplied poplars. Decreased enzymatic activities of nitrate reductase (NR), glutamate synthase (GOGAT) and glutamate dehydrogenase (GDH) and elevated activities of nitrite reductase (NiR), phenylalanine ammonia lyase (PAL), glutamine synthetase (GS) and asparagine synthase (AS) were found in Phe-treated roots. Accordingly, reduced concentrations of NH4+, NO3- and total N, and enhanced N-use efficiencies (NUEs) were detected in Phe-supplied poplars. Moreover, the transcript levels of putative Phe transporters ANT1 and ANT3 were upregulated, and the mRNA levels of NR, glutamine synthetase 2 (GS2), NADH dependent glutamate synthase (NADH-GOGAT), GDH and asparagine synthetase 2 (ASN2) were downexpressed in Phe-treated roots and/or leaves. The 15N-labeled Phe was mainly allocated in the roots and only a small amount of 15N-Phe was translocated to poplar aerial parts. These results indicate that poplar roots can acquire Phe as an N source to support plant growth and that Phe-induced NUEs in the poplars are probably associated with NH4+ re-utilization after Phe deamination and the carbon bonus simultaneously obtained during Phe uptake. PMID- 29036369 TI - Referral of patients with fever of unknown origin to an expertise center has high diagnostic and therapeutic value. AB - Background: up to 50% of patients with fever of unknown origin (FUO) remain undiagnosed despite extensive evaluation. In expertise centers, at least 25-63% of these patients is referred after evaluation in another hospital. The diagnostic and therapeutic yields of referral to an expertise center are currently unknown. Aim: To determine the diagnostic and therapeutic yield of referral of patients with fever of unknown origin (FUO) that remain undiagnosed in non-expertise hospitals. Design: Data on workup, outcome, treatment and prognosis were extracted from medical records of all 236 patients referred to the Radboud university medical center's department of internal medicine because of FUO between January 2005 and June 2014. Results: A final diagnosis could be made in 110 of 192 tertiary referred FUO patients. The rate of diagnosis did not differ between patients referred for first opinion or after tertiary referral (68.2 versus 57.3%, p=.234). Over half of undiagnosed tertiary referred patients were treated, and fever resolved in half of these patients. Of 96 undiagnosed patients, two died (2.1)% and in both death was considered unrelated to the febrile disease. Conclusion: The diagnostic rate in patients with FUO does not differ between patients that are tertiary referred and patients that have not been previously evaluated in another hospital. With a total diagnostic value of 57.3% and an additional therapeutic yield of 10.9% in undiagnosed patients, tertiary referral should therefore be considered in patients that remain undiagnosed in a non-expertise center. PMID- 29036370 TI - Estimation of the effects of multipoint pacing on battery longevity in routine clinical practice. AB - Aims: Multipoint pacing (MPP) permits simultaneous multisite pacing of the left ventricle (LV); initial studies suggest haemodynamic and clinical benefits over conventional (single LV site) cardiac resynchronization therapy (CRT). The aim of this study was to estimate the impact of MPP activation on battery longevity in routine clinical practice. Methods and results: Patient (n = 46) and device data were collected from two centres at least 3 months after MPP-CRT device implantation. Multipoint pacing programming was based on the maximal possible anatomical LV1/LV2 separation according to three predefined LV pacing capture threshold (PCT) cut-offs (<=1.5 V; <=4.0 V; and <=6.5 V). Estimated battery longevity was calculated using the programmed lower rate limit, lead impedances, outputs, and pacing percentages. Relative to the longevity for conventional CRT using the lowest PCT (8.9 +/- 1.2 years), MPP activation significantly shortened battery longevity for all three PCT cut-offs (<=1.5 V, -5.6%; <=4.0 V, -16.9%; <=6.5 V, -21.3%; P's <0.001). When compared with conventional CRT based on longest right ventricle-LV delay (8.3 +/- 1.3 years), battery longevity was significantly shortened for the MPP <= 4.0 V and <=6.5 V cut-offs (-10.8 and 15.7%, respectively; P's <0.001). Maximal LV1/LV2 spacing was possible in 23.9% (<=1.5 V), 56.5% (<=4.0 V), and 69.6% (<=6.5 V) of patients. Conclusion: Multipoint pacing activation significantly reduces battery longevity compared with that for conventional CRT configuration. When reasonable MPP LV vector PCTs (<=4.0 V) are achieved, the decrease in battery longevity is relatively small which may prompt the clinician to activate MPP. PMID- 29036368 TI - Proteomic identification of histone post-translational modifications and proteins enriched at a DNA double-strand break. AB - Here, we use ChAP-MS (chromatin affinity purification with mass spectrometry), for the affinity purification of a sequence-specific single-copy endogenous chromosomal locus containing a DNA double-strand break (DSB). We found multiple new histone post-translational modifications enriched on chromatin bearing a DSB from budding yeast. One of these, methylation of histone H3 on lysine 125, has not previously been reported. Among over 100 novel proteins enriched at a DSB were the phosphatase Sit4, the RNA pol II degradation factor Def1, the mRNA export protein Yra1 and the HECT E3 ligase Tom1. Each of these proteins was required for resistance to radiomimetics, and many were required for resistance to heat, which we show here to cause a defect in DSB repair in yeast. Yra1 and Def1 were required for DSB repair per se, while Sit4 was required for rapid inactivation of the DNA damage checkpoint after DSB repair. Thus, our unbiased proteomics approach has led to the unexpected discovery of novel roles for these and other proteins in the DNA damage response. PMID- 29036371 TI - Additive Effect of Cigarette Smoking on Gray Matter Abnormalities in Schizophrenia. AB - It is widely known that there is a high prevalence of cigarette smoking in schizophrenia. One of the explanations is the self-medication hypothesis. Based on this hypothesis, it has been suggested that nicotine has procognitive effect or even neuroprotective effect in schizophrenia. However, cigarettes contain numerous neurotoxic substances, making the net effect of cigarette smoking on brain function and structure complex. Indeed, recent studies have called into question the self-medication hypothesis. We aimed to test whether there is an interaction between diagnosis and smoking status in gray matter volume, ie, whether smoking has specific effects on gray matter or whether main effects of these 2 variables additively affect common brain regions. Magnetic resonance imaging (MRI) images were obtained from 4 groups: (1) normal controls with no smoking history, (2) normal controls currently smoking and/or with a past history of smoking, (3) schizophrenia patients with no smoking history, and (4) schizophrenia patients currently smoking and/or with a past history of smoking. We used voxel-based morphometry to compare gray matter volumes among the 4 groups. We did not find any interaction between diagnosis and smoking, but we did find negative additive effects of schizophrenia diagnosis and smoking status in the left prefrontal cortex. The decrease in left prefrontal volume was associated with greater numbers of cigarette pack years and severe positive and negative symptoms. The current findings do not support the neuroprotective effect of smoking on gross brain structure in schizophrenia, emphasizing the necessity of longitudinal studies to test causal relationships among these variables. PMID- 29036372 TI - SEARCH AND MAPPING OF THE OLD BURIED TAILINGS WITH RADIOACTIVE WASTES AT THE URBAN TERRITORY. AB - The article presents results of investigation on search and mapping of the old buried tailings with radioactive wastes on the territory of Kamianske City. For solving the problem used complex of methods. These methods are as follows: soil gas 222Rn measurement and measurement of 222Rn flux density from the ground surface, gamma-radiation survey, prospecting drilling, gamma-ray logging and laboratory analysis of radionuclides. The leading method in this complex was the method of soil-gas 222Rn measurement. Using this method location of the tailings has been precisely defined. The tailings boundaries have been contoured in the plan. Other methods permitted to define such parameters as thickness of the wastes, their volume (~330 000 m3), radionuclide and chemical composition. It was found that radioactive residues occur at a depth from 2 to 11 m and contain in its composition 226Ra, 210Pb and 210Po in the range from 8370 to 37 270 Bq kg-1. PMID- 29036373 TI - SUMMARY OF THE EIGHTH CONFERENCE ON PROTECTION AGAINST RADON AT HOME AND AT WORK AND THE 13TH WORKSHOP ON THE GEOLOGICAL ASPECTS OF RADON RISK MAPPING. AB - This paper provides summary of the 8th Conference on Protection against Radon at Home and at Work and 13th Workshop on the Geological Aspects of Radon Risk Mapping held in September 2016 in Prague, Czech Republic. PMID- 29036374 TI - Gating mass cytometry data by deep learning. AB - Motivation: Mass cytometry or CyTOF is an emerging technology for high dimensional multiparameter single cell analysis that overcomes many limitations of fluorescence-based flow cytometry. New methods for analyzing CyTOF data attempt to improve automation, scalability, performance and interpretation of data generated in large studies. Assigning individual cells into discrete groups of cell types (gating) involves time-consuming sequential manual steps, untenable for larger studies. Results: We introduce DeepCyTOF, a standardization approach for gating, based on deep learning techniques. DeepCyTOF requires labeled cells from only a single sample. It is based on domain adaptation principles and is a generalization of previous work that allows us to calibrate between a target distribution and a source distribution in an unsupervised manner. We show that DeepCyTOF is highly concordant (98%) with cell classification obtained by individual manual gating of each sample when applied to a collection of 16 biological replicates of primary immune blood cells, even when measured across several instruments. Further, DeepCyTOF achieves very high accuracy on the semi automated gating challenge of the FlowCAP-I competition as well as two CyTOF datasets generated from primary immune blood cells: (i) 14 subjects with a history of infection with West Nile virus (WNV), (ii) 34 healthy subjects of different ages. We conclude that deep learning in general, and DeepCyTOF specifically, offers a powerful computational approach for semi-automated gating of CyTOF and flow cytometry data. Availability and implementation: Our codes and data are publicly available at https://github.com/KlugerLab/deepcytof.git. Contact: yuval.kluger@yale.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036375 TI - URANIUM IN SOIL AND GAMMA DOSE RATE AS PROXIES FOR THE INDOOR RADON RISK: SITUATION IN BELGIUM. AB - Radon risk maps are usually based either on indoor radon data, or on measurements of soil gas radon and soil permeability. If these data are not available or not sufficient, it was suggested that other data could be used as an approximate substitute (a proxy) to the missing information, like the concentration of 238U or 226Ra in soils or the terrestrial gamma dose rate (TGDR). We examine here the correlation between airborne measurements of soil U and indoor radon, and between airborne U and TGDR, and their link with affected/unaffected areas. No clear correlation is found between airborne U and affected areas, as strongly affected areas are not characterised by a higher U level. Only the moderately affected area of Condroz can be connected to a higher U level, related to a few U anomalies. TGDR shows a rather good correlation with airborne U, but its relation with radon risk is less clear. Soil uranium and TGDR may help to screen out areas with very low U and very low TGDR, which have a low indoor radon risk, but they cannot be considered as good proxies for predicting radon-affected areas in Belgium. PMID- 29036377 TI - RADON CHAMBER IN THE CENTRAL MINING INSTITUTE-THE CALIBRATION FACILITY FOR RADON AND RADON PROGENY MONITORS. AB - The article presents the advantages of the radon chamber with volume of 17 m3, that belongs to Silesian Centre for Environmental Radioactivity and its applicability for calibration of equipment designed to measure the radon concentration and its short-lived decay products. The chamber can be operated under controlled conditions in the range from -20 to 60 degrees C and relative humidity from 20 to 90%. There is also discussed the influence of aerosol concentration and their size distribution on the calibration results. When calibrating the measuring devices in an atmosphere with a large contribution of ultrafine particles that are defined as particles with diameter <0.1 MUm, their sensitivity may decrease by tens of percent. PMID- 29036376 TI - The mechanism and high-free-energy transition state of lac repressor-lac operator interaction. AB - Significant, otherwise-unavailable information about mechanisms and transition states (TS) of protein folding and binding is obtained from solute effects on rate constants. Here we characterize TS for lac repressor(R)-lac operator(O) binding by analyzing effects of RO-stabilizing and RO-destabilizing solutes on association (ka) and dissociation (kd) rate constants. RO-destabilizing solutes (urea, KCl) reduce ka comparably (urea) or more than (KCl) they increase kd, demonstrating that they destabilize TS relative to reactants and RO, and that TS exhibits most of the Coulombic interactions between R and O. Strikingly, three solutes which stabilize RO by favoring burial/dehydration of amide oxygens and anionic phosphate oxygens all reduce kd without affecting ka significantly. The lack of stabilization of TS by these solutes indicates that O phosphates remain hydrated in TS and that TS preferentially buries aromatic carbons and amide nitrogens while leaving amide oxygens exposed. In our proposed mechanism, DNA binding-domains (DBD) of R insert in major grooves of O pre-TS, forming most Coulombic interactions of RO and burying aromatic carbons. Nucleation of hinge helices creates TS, burying sidechain amide nitrogens. Post-TS, hinge helices assemble and the DBD-hinge helix-O-DNA module docks on core repressor, partially dehydrating phosphate oxygens and tightening all interfaces to form RO. PMID- 29036378 TI - The effect of costs on Kenyan households' demand for medical care: why time and distance matter. AB - In an environment of constrained resources, policymakers must identify solutions for financing and delivering health services that are efficient and sustainable. However, such solutions require that policymakers understand the complex interaction between household utilization patterns, factors influencing household medical decisions, and provider performance. This study examined whether and under what conditions out-of-pocket, transportation, and time costs influenced Kenyan households' choice of medical provider for childhood diarrhoeal illnesses. It compared these decisions with the actual cost and quality of those providers to assess strategies for increasing the utilization of high quality, low-cost primary care. This study analyzed nationally-representative survey data through several multinomial nested logit models. On average, time costs accounted for the greatest share of total costs. Households spent the most time and transportation costs utilizing public care, yet were more likely to incur catastrophic time and out-of-pocket costs seeking private care for their child's diarrhoeal illness. Out-of-pocket, transportation, and time costs influenced households' choice of provider, though demand was cost inelastic and households were most responsive to transportation costs. Poorer households were the most responsive to changes in all cost types and most likely to self-treat or utilize informal care. Many households utilized informal care that, relative to formal care, cost the same but was of worse quality-suggesting that such households were making poor medical decisions for their children. To achieve public policy objectives, such as financial risk protection for childhood illnesses and equitable access to primary care, policymakers could focus on three areas: (1) refine financing strategies for further reducing household out-of-pocket costs; (2) reduce or subsidize time and transportation costs for households seeking public and private care; and (3) increase transparency of costs and quality to improve household decisions. PMID- 29036379 TI - PHOTOLUMINESCENCE, THERMOLUMINESCENCE AND OPTICALLY STIMULATED LUMINESCENCE STUDIES IN ZINC-BASED FLUOROPERVOSKITES. AB - The optically stimulated luminescence, thermoluminescence and photoluminescence in various Cu and Ag doped zinc based fluoropervoskites are studied. In all the samples, photoluminescence of Cu+ and Ag+ is observed which could be attributed to 3d94 s1<-->3d10 and 4d95 s1<-->5d10 transitions, respectively. The observed emission is double humped and the main emission band shifts to the lower wavelength side with increasing ionic size of the alkali ion. All the studied fluoropervoskites show reasonable OSL sensitivity. Highest sensitivity is observed for Cu doped ZnNaF3 and is 25% compared to commercial Al2O3:C. Weak thermoluminescence is observed in all samples. In all Ag doped samples the TL peak is observed at 200 degrees C whereas for Cu doped samples peak is observed at 150 degrees C, and correlated with the OSL. The samples show good linear dose response in the 10 mGy-1.2 Gy range and show good reusability characteristics. This study will lead to the development of zinc-based fluoropervoskite phosphors for the radiation dosimetry using OSL. PMID- 29036380 TI - MICRODOSIMETRIC SIMULATIONS OF CARBON IONS USING THE MONTE CARLO CODE FLUKA. AB - Therapeutic carbon ion beams produce a complex and variable radiation field that changes along the penetration depth due to the high density of energy loss along the particle track together with the secondary particles produced by nuclear fragmentation reactions. An accurate physical characterisation of such complex mixed-radiation fields can be performed by measuring microdosimetric spectra with mini tissue-equivalent proportional counters (mini-TEPCs), which are one of the most accurate devices used in experimental microdosimetry. Numerical calculations with Monte Carlo codes such as FLUKA can be used to supplement experimental microdosimetric measurements performed with TEPCs, but the nuclear cross sections and fragmentation models need to be benchmarked with experimental data for different energies and scenarios. The aim of this work is to compare experimental carbon microdosimetric data measured with the mini TEPC with calculated microdosimetry spectra obtained with FLUKA for 12C ions of 189.5 MeV/u in the Bragg peak region. PMID- 29036381 TI - Project ECHO Telementoring Intervention for Managing Chronic Pain in Primary Care: Insights from a Qualitative Study. AB - Objective: Family physicians in Canada receive little training in chronic pain management; concomitantly, they face increasing pressure to reduce their prescribing of opioids. Project ECHO Ontario Chronic Pain/Opioid Stewardship (ECHO) is a telementoring intervention for primary care practitioners that enhances their pain management skills. This qualitative study reports participants' experiences and assessment of ECHO. Design: An opportunistic sample of multidisciplinary primary care providers attending one of three residential weekend workshops participated in focus group discussions. Setting: University or hospital facilities in Toronto, Thunder Bay, and Kingston, Ontario, Canada. Subjects: Seventeen physicians and 20 allied health professionals. Methods: Six focus group discussions were conducted at three different sites during 2014 and 2015. Transcripts were analyzed using a qualitative-descriptive approach involving analytic immersion in the data, reflection, and achieving consensus around themes discerned from transcribed discussions. Results: Findings resolved into five main themes: 1) challenges of managing chronic pain in primary care; 2) ECHO participation and improvement in patient-provider interaction and participant knowledge; 3) the diffusion of knowledge gained through ECHO to participants' colleagues and patients; 4) ECHO participation generating a sense of community; and 5) disadvantages associated with participating in ECHO. Conclusions: Managing patients with chronic pain in primary care can be difficult, particularly in remote or underserved practices. Project ECHO offers guidance to primary care practitioners for their most challenging patients, promotes knowledge acquisition and diffusion, and stimulates the development of a "community of practice." PMID- 29036382 TI - MusiteDeep: a deep-learning framework for general and kinase-specific phosphorylation site prediction. AB - Motivation: Computational methods for phosphorylation site prediction play important roles in protein function studies and experimental design. Most existing methods are based on feature extraction, which may result in incomplete or biased features. Deep learning as the cutting-edge machine learning method has the ability to automatically discover complex representations of phosphorylation patterns from the raw sequences, and hence it provides a powerful tool for improvement of phosphorylation site prediction. Results: We present MusiteDeep, the first deep-learning framework for predicting general and kinase-specific phosphorylation sites. MusiteDeep takes raw sequence data as input and uses convolutional neural networks with a novel two-dimensional attention mechanism. It achieves over a 50% relative improvement in the area under the precision recall curve in general phosphorylation site prediction and obtains competitive results in kinase-specific prediction compared to other well-known tools on the benchmark data. Availability and implementation: MusiteDeep is provided as an open-source tool available at https://github.com/duolinwang/MusiteDeep. Contact: xudong@missouri.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036384 TI - THE RESPONSE OF A MULTI-ELEMENT TISSUE EQUIVALENT PROPORTIONAL COUNTER IN ACCELERATOR BASED HIGH-ALTITUDE NEUTRON FIELDS. AB - The response of a multi-element tissue equivalent proportional counter (METEPC) was investigated at the high energy neutron facility EU-CERF, in Prevessin, France. This facility was established specifically to provide reference neutron fields typical of those found at high altitude. The METEPC measurements were conducted along with a commercially available spherical tissue equivalent proportional counter (TEPC) used for comparison. The measured microdosimetric spectra were analyzed and compared for various measurement locations, with substantially different neutron energy distributions resulting from the use of iron or concrete shielding. The absorbed dose rate measured by the two counters in the dominant lower-energy neutron field locations from the iron-shielded target was <27%. A significant difference in the range of 32-58% was observed between the two counters in the higher-energy neutron field produced by the concrete-shielded target. Interestingly, due to a combination of factors, including the geometry and structure of the METEPC, values of dose-equivalent derived from the METEPC and the TEPC were in closer agreement (within 30%) and are well within acceptable limits for neutron monitoring. PMID- 29036383 TI - Nigral Stress-Induced Dopamine Release in Clinical High Risk and Antipsychotic Naive Schizophrenia. AB - Background: Striatal dopamine (DA) synthesis capacity and release are elevated in schizophrenia (SCZ) and its putative prodrome, the clinical high risk (CHR) state. Striatal DA function results from the activity of midbrain DA neurons projecting mainly from the substantia nigra (SN). Elevated stress-induced DA release in SCZ and CHR was observed in the striatum; however, whether it is also elevated in the SN is unclear. The current study aims to determine whether nigral DA release in response to a validated stress task is altered in CHR and in antipsychotic-naive SCZ. Further, we explore how DA release in the SN and striatum might be related. Methods: 24 CHR subjects, 9 antipsychotic-naive SCZ and 25 healthy volunteers (HV) underwent 2 positron emission tomography (PET) scans using the DA D2/3 agonist radiotracer, [11C]-(+)-PHNO, which allows simultaneous investigations of DA in the SN and striatum. Psychosocial stress induced DA release was estimated as the percentage differences in BPND (%[11C] (+)-PHNO displacement) between stress and sensory-motor control sessions. Results: We observed a significant diagnostic group by session interaction, such that SCZ exhibited greater stress-induced [11C]-(+)-PHNO % displacement (25.90% +/- 32.2%; mean +/- SD), as compared to HVs (-10.94% +/- 27.1%). Displacement in CHRs (-1.13% +/- 32.2%) did not differ significantly from either HV or SCZ. Conclusion: Our findings suggest that elevated nigral DA responsiveness to stress is observed in antipsychotic-naive SCZ. PMID- 29036386 TI - Uncovering the physiological mechanisms that allow nitrogen availability to affect drought acclimation in Catalpa bungei. PMID- 29036385 TI - The Latent Taxonicity of Schizotypy in Biological Siblings of Probands With Schizophrenia. AB - If schizotypy is a taxonic liability for schizophrenia with a general population prevalence of ~10%, it should also be taxonic among biological siblings of probands with schizophrenia. Moreover, assuming this is so, siblings' schizotypy class membership should be predicted by probands' familial load for psychotic disorder and clinical severity, consistent with a multifactorial polygenic threshold model of schizophrenia. We tested these hypotheses in the Genetic Risk and Outcome of Psychosis (GROUP) Study where siblings of probands (n = 792) and unaffected controls (n = 559) provided self-report ratings on the Community Assessment of Psychic Experiences (CAPE). Maximum covariance analyses of control group ratings led to the identification of CAPE items sensitive to nonredundant positive and negative schizotypy classes in the control group (prevalence = 7.9% and 11.1%, respectively). When the same taxonic solution was applied to siblings' CAPE rating, taxometric analyses yielded evidence for larger positive and negative schizotypy classes among siblings (prevalence = 14.1% and 21.8%, respectively). Whereas probands' familial loads for bipolar disorder or drug use disorders did not predict siblings' membership in the schizotypy classes, probands' familial load for psychotic disorder did. Siblings were more likely to be members of the positive schizotypy class where their probands were more severely affected. The pattern of findings is consistent with Meehl's argument that schizotypy reflects liability for schizophrenia. PMID- 29036389 TI - RADON CONCENTRATIONS IN SELECTED THERMAL WATERS IN SLOVAKIA. AB - Radon concentration in thermal waters used in selected spas and aqua parks in Slovakia was investigated. In total, 23 thermal water sources were monitored. Measured radon levels varied in a large interval, from 4.1 to 488 Bq l-1. High radon activity (180 Bq l-1) was also found in thermal potable water in fountains used by the patients and the public. PMID- 29036387 TI - Uncovering exposures responsible for birth season - disease effects: a global study. AB - Objective: Birth month and climate impact lifetime disease risk, while the underlying exposures remain largely elusive. We seek to uncover distal risk factors underlying these relationships by probing the relationship between global exposure variance and disease risk variance by birth season. Material and Methods: This study utilizes electronic health record data from 6 sites representing 10.5 million individuals in 3 countries (United States, South Korea, and Taiwan). We obtained birth month-disease risk curves from each site in a case control manner. Next, we correlated each birth month-disease risk curve with each exposure. A meta-analysis was then performed of correlations across sites. This allowed us to identify the most significant birth month-exposure relationships supported by all 6 sites while adjusting for multiplicity. We also successfully distinguish relative age effects (a cultural effect) from environmental exposures. Results: Attention deficit hyperactivity disorder was the only identified relative age association. Our methods identified several culprit exposures that correspond well with the literature in the field. These include a link between first-trimester exposure to carbon monoxide and increased risk of depressive disorder (R = 0.725, confidence interval [95% CI], 0.529-0.847), first trimester exposure to fine air particulates and increased risk of atrial fibrillation (R = 0.564, 95% CI, 0.363-0.715), and decreased exposure to sunlight during the third trimester and increased risk of type 2 diabetes mellitus (R = 0.816, 95% CI, -0.5767, -0.929). Conclusion: A global study of birth month disease relationships reveals distal risk factors involved in causal biological pathways that underlie them. PMID- 29036388 TI - Risk Factors for Suicidality in Patients With Schizophrenia: A Systematic Review, Meta-analysis, and Meta-regression of 96 Studies. AB - The lifetime risk of suicide and suicide attempt in patients with schizophrenia are 5% and 25%-50%, respectively. The current meta-analysis aims to determine risk factors associated with suicidality in subjects with schizophrenia. We searched Pubmed, Web of Science, EMBASE, and the reference lists of included studies. Inclusion criteria were met if an article reported a dichotomous sample of patients with schizophrenia with suicidal ideation, attempted suicide, or suicide compared to patients without. We also performed a cohort study meta analysis as a supplemental analysis. A total of 96 studies with 80488 participants were included in our analysis. Depressive symptoms (P < .0001), Positive and Negative Symptom Scale (PANSS) general score (P < .0001) and number of psychiatric hospitalizations (P < .0001) were higher in patients with suicide ideation. History of alcohol use (P = .0001), family history of psychiatric illness (P < .0001), physical comorbidity (P < .0001), history of depression (P < .0001), family history of suicide (P < .0001), history of drug use (P = .0024), history of tobacco use (P = .0034), being white (P = .0022), and depressive symptoms (P < .0001) were the most consistent variables associated with suicide attempts. The first two were also significant in the cohort meta-analysis. Being male (P = .0005), history of attempted suicide (P < .0001), younger age (P = .0266), higher intelligence quotient (P < .0001), poor adherence to treatment (P < .0001), and hopelessness (P < .0001) were the most consistently associated with suicide. The first three were also significant in the cohort meta-analysis. Our findings may help with future development of preventive strategies to combat suicide. Future studies may combine the above-mentioned variables by using multivariate predictive analysis techniques to objectively stratify suicidality in schizophrenia. PMID- 29036390 TI - Endothelial cells modified by adenovirus vector containing nine copies hypoxia response elements and human vascular endothelial growth factor as the novel seed cells for bone tissue engineering. AB - Vascularization is one of the hotspots during the development of new therapeutic strategies for bone tissue engineering, which can alleviate hypoxic circumstance and prevent transplant failure. Vascular endothelial growth factor (VEGF) gene transfection using recombinant adenovirus (Ad) vector can effectively promote angiogenesis, but uncontrolled long-term continuous expression of VEGF brings safety concern. Here we constructed a recombinant Ad vector containing nine copies of HRE promoter and the hVEGF165 gene, which conserved the oxygen sensitivity of hypoxia-inducible factor-1/hypoxia response elements (HIF-1/HRE). After transfection into human umbilical vein endothelial cells (HUVEC), the hVEGF165 mRNA and protein levels were much higher in response to hypoxia, as revealed by RT-PCR and ELISA, respectively. Furthermore, Ad-9HRE-hVEGF165 vector effectively promoted proliferation, migration and tube formation of HUVEC under hypoxic conditions. Thus we believe that the Ad-9HRE-hVEGF165 vector can contribute to the regulation of vascularization, which may provide a new approach for a better control of the expression of hVEGF165 during bone tissue engineering. PMID- 29036391 TI - Improvement in Negative Symptoms and Functioning in Cognitive-Behavioral Social Skills Training for Schizophrenia: Mediation by Defeatist Performance Attitudes and Asocial Beliefs. AB - Psychosocial interventions have significant but modest impact on negative symptoms and functioning in schizophrenia. Identifying mechanisms of change in these interventions can inform treatment targets to strengthen these interventions. A number of studies have found associations between dysfunctional attitudes negative symptoms and functioning in schizophrenia. We previously found improvement in experiential negative symptoms and functioning in cognitive behavioral social skills training (CBSST) in participants with schizophrenia (N = 149), and the present study examined whether improvements in CBSST in that trial were mediated by the group effect on defeatist performance attitudes and asocial beliefs. In multilevel mediation analyses, the effect of treatment group on experiential negative symptoms and functioning was mediated prospectively through defeatist attitudes but asocial beliefs only mediated effects on experiential negative symptoms. The findings suggest that cognitive-behavioral therapy interventions that target dysfunctional attitudes can lead to improvement in negative symptoms and functioning in schizophrenia. PMID- 29036392 TI - Update From the Advisory Committee on Immunization Practices. AB - The Advisory Committee on Immunization Practices (ACIP), a group of medical and public health experts, meets 3 times per year to develop recommendations for vaccine use in the United States. The group has 15 voting members, and each member's term is 4 years. ACIP members and Centers for Disease Control and Prevention (CDC) staff discuss the epidemiology of vaccine-preventable diseases and vaccine research, effectiveness, safety data, and clinical trial results. Representatives from the American Academy of Pediatrics (Carrie L. Byington and D. W. K.) and the Pediatric Infectious Diseases Society (S. T. O.) are present as liaisons to the ACIP. The ACIP met on June 21 to 22, 2017, to discuss catch-up vaccination for hepatitis A vaccine, influenza surveillance, influenza vaccine effectiveness, herpes zoster vaccine, the effect of varicella vaccination on the incidence of herpes zoster, meningococcal disease in patients taking eculizumab, and considerations for a potential third dose of measles, mumps, and rubella (MMR) vaccine to combat ongoing mumps outbreaks. Updates on dengue virus epidemiology, Zika virus vaccines, anthrax vaccine, yellow fever vaccine, and the Vaccine Adverse Event Reporting System were given also. PMID- 29036394 TI - Management of acute coronary syndromes in older people. PMID- 29036393 TI - Angiotensin Receptor Expression and Vascular Endothelial Dysfunction in Obstructive Sleep Apnea. AB - BACKGROUND: Obstructive sleep apnea (OSA) is associated with vascular endothelial dysfunction (VED) in otherwise healthy patients. The role of renin-angiotensin system (RAS) in the OSA induced VED is not well understood. METHODS: Recently diagnosed OSA patients with very low cardiovascular disease (CVD) risk (Framingham score <5%) were studied at diagnosis and after 12 weeks of verified continuous positive airway pressure (CPAP) therapy. Participants underwent biopsy of gluteal subcutaneous tissue at baseline and after CPAP. Microcirculatory endothelial expression of angiotensin receptors type-1 (AT-1) and type-2 (AT-2) was measured in the subcutaneous tissue using quantitative confocal microscopy techniques. The ex-vivo effect of AT-1 receptor blockade (ARB) on endothelial superoxide production was also measured before and after CPAP treatment. RESULTS: In OSA patients (n = 11), microcirculatory endothelial AT1 expression decreased from 873 (200) (fluorescence units) at baseline to 393 (59) units after 12 weeks of CPAP (P = 0.02). AT2 expression did not decrease significantly in these patients (479 (75) to 329 (58) post CPAP (P = 0.08)). The ex-vivo addition of the losartan to the microcirculatory endothelium resulted in decreased superoxide expression in the vascular walls from 14.2 (2.2) units to 4.2 (0.8) P < 0.001; while it had no effect on post-CPAP patient tissue (P = 0.64). CONCLUSIONS: In OSA patients with no to minimal CVD risk, VED is associated with upregulation of AT-1 expression that is reversible with CPAP. Endothelial oxidative stress was reversible with ARB. RAS activation may play an important role in the development of early CVD risk in OSA patients. PMID- 29036395 TI - MICRODOSIMETRIC MODELING OF THE RELATIVE LUMINESCENCE EFFICIENCY OF LiF:Mg,Ti (MTS) DETECTORS EXPOSED TO CHARGED PARTICLES. AB - A microdosimetric model has been developed to predict the relative efficiency of luminescent detectors for measuring different radiation qualities. The model has been tested for LiF:Mg,Ti (MTS) detectors exposed to charged particles from 1H to 132Xe in the energy range 3-1000 MeV/u. The obtained results have been compared with experimental data present in literature showing very good agreement in case of calculations performed in a site size of 40 nm. PMID- 29036398 TI - RE: "MODELED AND PERCEIVED EXPOSURE TO RADIOFREQUENCY ELECTROMAGNETIC FIELDS FROM MOBILE-PHONE BASE STATIONS AND THE DEVELOPMENT OF SYMPTOMS OVER TIME IN A GENERAL POPULATION COHORT". PMID- 29036397 TI - Polyploidy influences plant-environment interactions in quaking aspen (Populus tremuloides Michx.). AB - Quaking aspen (Populus tremuloides Michx.), a widespread and keystone tree species in North America, experienced heat and drought stress in the years 2002 and 2003 in the southwestern United States. This led to widespread aspen mortality that has altered the composition of forests, and is expected to occur again if climate change continues. Understanding interactions between aspen and its environments is essential to understanding future mortality risk in forests. Polyploidy, which is common in aspen, can modify plant structure and function and therefore plant-environment interactions, but the influence of polyploidy on aspen physiology is still not well understood. Furthermore, the ploidy types of aspen have different biogeographies, with triploids being most frequent at lower latitudes in generally warmer and drier climates, while the northerly populations are virtually 100% diploid. This suggests that ploidy-environment interactions differ, and could mean that the ploidy types have different vulnerabilities to environmental stress. In this study, to understand aspen ploidy-environment interactions, we measured 38 different traits important to carbon uptake, water loss and water-use efficiency in diploid and triploid aspen in Colorado. We found that triploid aspen had lower stand density, and greater leaf area, leaf mass, leaf mass per area, percent nitrogen content, chlorophyll content and stomatal size. These differences corresponded to greater potential net carbon assimilation (A, measured using A/Ci curves, and chlorophyll fluorescence) and stomatal conductance (gs) in triploids than diploids. While triploid aspen had higher intrinsic water-use efficiency (iWUE, calculated from measurements of delta13C in leaf tissue), they also had greater potential water loss from higher measured gs and lower stomatal sensitivity to increasing vapor pressure deficit. Therefore, despite greater iWUE, triploids may have lower resilience to climate-induced stress. We conclude that ploidy type strongly influences physiological traits and function, and mediates drought stress responses in quaking aspen. PMID- 29036396 TI - The FASTK family of proteins: emerging regulators of mitochondrial RNA biology. AB - The FASTK family proteins have recently emerged as key post-transcriptional regulators of mitochondrial gene expression. FASTK, the founding member and its homologs FASTKD1-5 are architecturally related RNA-binding proteins, each having a different function in the regulation of mitochondrial RNA biology, from mRNA processing and maturation to ribosome assembly and translation. In this review, we outline the structure, evolution and function of these FASTK proteins and discuss the individual role that each has in mitochondrial RNA biology. In addition, we highlight the aspects of FASTK research that still require more attention. PMID- 29036399 TI - Use of a crossed high alcohol preferring (cHAP) mouse model with the NIAAA-model of chronic-binge ethanol intake to study liver injury. AB - Aims: This study sought to compare mice bred to preferentially consume high amounts of alcohol (crossed-high alcohol preferring, cHAP) to c57BL/6 (C57) mice using a chronic-binge ethanol ingestion model to induce alcoholic liver disease (ALD). Methods: Male C57 and cHAP mice were randomized to a Lieber-DeCarli control (LDC) diet, Lieber-DeCarli 5% (v/v) ethanol (LDE) diet or free-choice between 10% (v/v) ethanol in drinking water (EtOH-DW) and DW. After 4 weeks mice were gavaged with either 9 g/kg maltose-dextrin (LDC+MD) or 5 g/kg EtOH (LDE+Binge, EtOH-DW+Binge). Nine hours later tissue and serum were collected and analyzed. Results: cHAP mice on EtOH-DW consumed significantly more ethanol than cHAP or C57 mice maintained on LDE. However, cHAP and C57 mice on the LDE+Binge regiment had greater hepatosteatosis and overall degree of liver injury compared to EtOH-DW+Binge. Changes in pro-inflammatory gene expression was more pronounced in cHAP mice than C57 mice. Analysis of liver enzymes revealed a robust induction of CYP2E1 in C57 and cHAP mice maintained on EtOH-DW+Binge or LDE+Binge. However, while C57 mice exhibited higher basal hepatic glutathione than cHAP mice, these mice appeared more susceptible to oxidative stress following LDE+Binge than cHAP counterparts. Conclusions: Despite cHAP mice consuming more total ethanol prior to gavage when maintained on EtOH-DW, LDE followed by gavage created a more severe model of ALD in both C57 and cHAP mice. These data suggest factors other than total amount of alcohol consumed affect degree of ALD development in the chronic-binge model in cHAP mice. Short Summary: cHAP mice voluntarily consume high amounts of ethanol and exhibited hepatic injury when subject to chronic binge ethanol feeding with the Lieber-DeCarli diet. However, hepatic injury was reduced in cHAP mice in a chronic-binge model following voluntary high ethanol consumption in drinking water. PMID- 29036400 TI - Prediction and modeling of pre-analytical sampling errors as a strategy to improve plasma NMR metabolomics data. AB - Motivation: Biobanks are important infrastructures for life science research. Optimal sample handling regarding e.g. collection and processing of biological samples is highly complex, with many variables that could alter sample integrity and even more complex when considering multiple study centers or using legacy samples with limited documentation on sample management. Novel means to understand and take into account such variability would enable high-quality research on archived samples. Results: This study investigated whether pre analytical sample variability could be predicted and reduced by modeling alterations in the plasma metabolome, measured by NMR, as a function of pre centrifugation conditions (1-36 h pre-centrifugation delay time at 4 degrees C and 22 degrees C) in 16 individuals. Pre-centrifugation temperature and delay times were predicted using random forest modeling and performance was validated on independent samples. Alterations in the metabolome were modeled at each temperature using a cluster-based approach, revealing reproducible effects of delay time on energy metabolism intermediates at both temperatures, but more pronounced at 22 degrees C. Moreover, pre-centrifugation delay at 4 degrees C resulted in large, specific variability at 3 h, predominantly of lipids. Pre analytical sample handling error correction resulted in significant improvement of data quality, particularly at 22 degrees C. This approach offers the possibility to predict pre-centrifugation delay temperature and time in biobanked samples before use in costly downstream applications. Moreover, the results suggest potential to decrease the impact of undesired, delay-induced variability. However, these findings need to be validated in multiple, large sample sets and with analytical techniques covering a wider range of the metabolome, such as LC MS. Availability and implementation: The sampleDrift R package is available at https://gitlab.com/CarlBrunius/sampleDrift. Contact: carl.brunius@chalmers.se. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036401 TI - The All-Rounder Sodalis: A New Bacteriome-Associated Endosymbiont of the Lygaeoid Bug Henestaris halophilus (Heteroptera: Henestarinae) and a Critical Examination of Its Evolution. AB - Hemipteran insects are well-known in their ability to establish symbiotic relationships with bacteria. Among them, heteropteran insects present an array of symbiotic systems, ranging from the most common gut crypt symbiosis to the more restricted bacteriome-associated endosymbiosis, which have only been detected in members of the superfamily Lygaeoidea and the family Cimicidae so far. Genomic data of heteropteran endosymbionts are scarce and have merely been analyzed from the Wolbachia endosymbiont in bed bug and a few gut crypt-associated symbionts in pentatomoid bugs. In this study, we present the first detailed genomic analysis of a bacteriome-associated endosymbiont of a phytophagous heteropteran, present in the seed bug Henestaris halophilus (Hemiptera: Heteroptera: Lygaeoidea). Using phylogenomics and genomics approaches, we have assigned the newly characterized endosymbiont to the Sodalis genus, named as Candidatus Sodalis baculum sp. nov. strain kilmister. In addition, our findings support the reunification of the Sodalis genus, currently divided into six different genera. We have also conducted comparative analyses between 15 Sodalis species that present different genome sizes and symbiotic relationships. These analyses suggest that Ca. Sodalis baculum is a mutualistic endosymbiont capable of supplying the amino acids tyrosine, lysine, and some cofactors to its host. It has a small genome with pseudogenes but no mobile elements, which indicates middle-stage reductive evolution. Most of the genes in Ca. Sodalis baculum are likely to be evolving under purifying selection with several signals pointing to the retention of the lysine/tyrosine biosynthetic pathways compared with other Sodalis. PMID- 29036404 TI - The value of prior knowledge in machine learning of complex network systems. AB - Motivation: Our overall goal is to develop machine-learning approaches based on genomics and other relevant accessible information for use in predicting how a patient will respond to a given proposed drug or treatment. Given the complexity of this problem, we begin by developing, testing and analyzing learning methods using data from simulated systems, which allows us access to a known ground truth. We examine the benefits of using prior system knowledge and investigate how learning accuracy depends on various system parameters as well as the amount of training data available. Results: The simulations are based on Boolean networks-directed graphs with 0/1 node states and logical node update rules-which are the simplest computational systems that can mimic the dynamic behavior of cellular systems. Boolean networks can be generated and simulated at scale, have complex yet cyclical dynamics and as such provide a useful framework for developing machine-learning algorithms for modular and hierarchical networks such as biological systems in general and cancer in particular. We demonstrate that utilizing prior knowledge (in the form of network connectivity information), without detailed state equations, greatly increases the power of machine-learning algorithms to predict network steady-state node values ('phenotypes') and perturbation responses ('drug effects'). Availability and implementation: Links to codes and datasets here: https://gray.mgh.harvard.edu/people-directory/71 david-craft-phd. Contact: dcraft@broadinstitute.org. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036403 TI - CSCD: a database for cancer-specific circular RNAs. AB - Circular RNA (circRNA) is a large group of RNA family extensively existed in cells and tissues. High-throughput sequencing provides a way to view circRNAs across different samples, especially in various diseases. However, there is still no comprehensive database for exploring the cancer-specific circRNAs. We collected 228 total RNA or polyA(-) RNA-seq samples from both cancer and normal cell lines, and identified 272 152 cancer-specific circRNAs. A total of 950 962 circRNAs were identified in normal samples only, and 170 909 circRNAs were identified in both tumor and normal samples, which could be further used as non tumor background. We constructed a cancer-specific circRNA database (CSCD, http://gb.whu.edu.cn/CSCD). To understand the functional effects of circRNAs, we predicted the microRNA response element sites and RNA binding protein sites for each circRNA. We further predicted potential open reading frames to highlight translatable circRNAs. To understand the association between the linear splicing and the back-splicing, we also predicted the splicing events in linear transcripts of each circRNA. As the first comprehensive cancer-specific circRNA database, we believe CSCD could significantly contribute to the research for the function and regulation of cancer-associated circRNAs. PMID- 29036402 TI - Lack of Diagnostic Pluripotentiality in Patients at Clinical High Risk for Psychosis: Specificity of Comorbidity Persistence and Search for Pluripotential Subgroups. AB - More than 20 years after the clinical high risk syndrome for psychosis (CHR) was first articulated, it remains controversial whether the CHR syndrome predicts onset of psychosis with diagnostic specificity or predicts pluripotential diagnostic outcomes. Recently, analyses of observational studies, however, have suggested that the CHR syndrome is not pluripotential for emergent diagnostic outcomes. The present report conducted additional analyses in previously reported samples to determine (1) whether comorbid disorders were more likely to persist in CHR patients compared to a comparison group of patients who responded to CHR recruitment efforts but did not meet criteria, termed help-seeking comparison subjects (HSC); and (2) whether clinically defined pluripotential CHR subgroups could be identified. All data were derived from 2 multisite studies in which DSM IV structured diagnostic interviews were conducted at baseline and at 6-month intervals. Across samples we observed persistence of any nonpsychotic disorder in 80/147 CHR cases (54.4%) and in 48/84 HSC cases (57.1%, n.s.). Findings with persistence of anxiety, depressive, and bipolar disorders considered separately were similar. Efforts to discover pluripotential CHR subgroups were unsuccessful. These findings add additional support to the view that the CHR syndrome is not pluripotential for predicting various diagnostic outcomes but rather is specific for predicting emergent psychosis. PMID- 29036406 TI - Effects of computerized decision support system implementations on patient outcomes in inpatient care: a systematic review. AB - Objectives: To systematically classify the clinical impact of computerized clinical decision support systems (CDSSs) in inpatient care. Materials and Methods: Medline, Cochrane Trials, and Cochrane Reviews were searched for CDSS studies that assessed patient outcomes in inpatient settings. For each study, 2 physicians independently mapped patient outcome effects to a predefined medical effect score to assess the clinical impact of reported outcome effects. Disagreements were measured by using weighted kappa and solved by consensus. An example set of promising disease entities was generated based on medical effect scores and risk of bias assessment. To summarize technical characteristics of the systems, reported input variables and algorithm types were extracted as well. Results: Seventy studies were included. Five (7%) reported reduced mortality, 16 (23%) reduced life-threatening events, and 28 (40%) reduced non-life-threatening events, 20 (29%) had no significant impact on patient outcomes, and 1 showed a negative effect (weighted kappa: 0.72, P < .001). Six of 24 disease entity settings showed high effect scores with medium or low risk of bias: blood glucose management, blood transfusion management, physiologic deterioration prevention, pressure ulcer prevention, acute kidney injury prevention, and venous thromboembolism prophylaxis. Most of the implemented algorithms (72%) were rule based. Reported input variables are shared as standardized models on a metadata repository. Discussion and Conclusion: Most of the included CDSS studies were associated with positive patient outcomes effects but with substantial differences regarding the clinical impact. A subset of 6 disease entities could be filtered in which CDSS should be given special consideration at sites where computer-assisted decision-making is deemed to be underutilized. Registration number on PROSPERO: CRD42016049946. PMID- 29036405 TI - FOLD: a method to optimize power in meta-analysis of genetic association studies with overlapping subjects. AB - Motivation: In genetic association studies, meta-analyses are widely used to increase the statistical power by aggregating information from multiple studies. In meta-analyses, participating studies often share the same individuals due to the shared use of publicly available control data or accidental recruiting of the same subjects. As such overlapping can inflate false positive rate, overlapping subjects are traditionally split in the studies prior to meta-analysis, which requires access to genotype data and is not always possible. Fortunately, recently developed meta-analysis methods can systematically account for overlapping subjects at the summary statistics level. Results: We identify and report a phenomenon that these methods for overlapping subjects can yield low power. For instance, in our simulation involving a meta-analysis of five studies that share 20% of individuals, whereas the traditional splitting method achieved 80% power, none of the new methods exceeded 32% power. We found that this low power resulted from the unaccounted differences between shared and unshared individuals in terms of their contributions towards the final statistic. Here, we propose an optimal summary-statistic-based method termed as FOLD that increases the power of meta-analysis involving studies with overlapping subjects. Availability and implementation: Our method is available at http://software.buhmhan.com/FOLD. Contact: mail: buhm.han@amc.seoul.kr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036407 TI - Prognostic value of the circumferential resection margin and its definitions in esophageal cancer patients after neoadjuvant chemoradiotherapy. AB - The accepted importance of a positive circumferential resection margin (CRM) (defined as R1 in the TNM classification) is based on histopathology of the resection specimen obtained after primary surgery in esophageal cancer patients. The aim of this study is to look for the prognostic value of CRM after neoadjuvant chemoradiotherapy and to compare the clinical significance of a histologically CRM < 1 mm from the cut margin (Royal College of Pathologists definition of R1) to a positive cut margin (College of American Pathologists definition of R1) and to >=1 mm margin (R0) resections in patients with ypT3 esophageal tumors after neoadjuvant chemoradiotherapy. Between 2000 and 2014, 458 patients who received esophagectomy after neoadjuvant chemoradiation therapy were selected. Overall (OS) and disease-free survival (DFS) were calculated by means of Kaplan-Meier curves and compared by Cox regression analysis. There were 163 (35.9%) patients who had a ypT3 tumor; in 118 (72.4%) resection was complete (R0). In 37 (22.7%) patients a CRM < 1 mm was found and 8 (4.9%) had a circumferential R1-resection. CRM involvement was inversely correlated with tumor regression grading, lymph node capsular involvement, and number of positive lymph nodes. On univariate analysis, no statistically significant difference was found between R0-resection and CRM < 1 mm (P = 0.103) for OS, but DFS showed a significant difference (P = 0.025). Circumferential R1-resections showed a significant difference compared to R0-resections for OS and DFS (both P = 0.002). In multivariate analysis, extracapsular lymph node involvement and circumferential R1-resection were withheld as independent prognosticators for OS, whereas extracapsular lymph node involvement, absence of regression on the primary tumor and circumferential R1-resection were withheld for DFS. After correcting for different variables in the multivariate model, CRM < 1 mm showed no statistical difference compared to R0-resections neither for OS nor for DFS. After neoadjuvant chemoradiotherapy, CRM is correlated with biological behavior of the tumor and with therapy response. Furthermore it is an independent prognosticator for OS and DFS. However CRM < 1 mm itself is no independent prognosticator for OS nor DFS survival in multivariable analysis. These results suggest that the definition of R1-resection should be limited to true invasion of the section plane. PMID- 29036408 TI - Physiological differences between root suckers and saplings enlarge the regeneration niche in Eucryphia cordifolia Cav. AB - Many clonal plants produce vegetative recruits that remain connected to the parent plant. Such connections permit resource sharing among ramets, explaining the high survival rates of vegetative recruits during establishment under suboptimal conditions for sexual regeneration. We propose that differences in the regeneration niches of sexual and vegetative recruits reflect different physiological adjustments caused by parental supply of resources to the ramets. We conducted ecophysiological measurements in saplings and root suckers of Eucryphia cordifolia Cav., a tree species of the temperate rainforest of southern South America. We compared the following traits of saplings and suckers: gas exchange at the leaf level, crown architecture, daily crown carbon balance, biomass allocation to above-ground tissues (leaf-to-stem mass ratio, leaf mass area and leaf area ratio), xylem anatomy traits (lumen vessel fraction, vessel density and size) and stem ring width. We also correlated the growth rates of saplings and suckers with relevant environmental data (light and climate). Saplings showed morphological, architectural and physiological traits that enhance daily crown carbon balance and increase water-use efficiency, in order to supply their growth demands while minimizing water loss per unit of carbon gained. The radial growth of saplings diminished under dry conditions, which suggests a strong stomatal sensitivity to water availability. Suckers have low stomatal conductance, likely because the carbon supplied by the parent plant diminishes the necessity of high rates of photosynthesis. The low responsiveness of sucker growth to temporal changes in water availability also supports the existence of parental supply. The physiological differences between sexual and vegetative recruits satisfactorily explain the ecological niche of E. cordifolia, with saplings restricted to more closed and humid sites. PMID- 29036409 TI - Structure of an innexin gap junction channel and cryo-EM sample preparation. AB - Gap junction channels are essential for mediating intercellular communication in most multicellular organisms. Two gene families encode gap junction channels, innexin and connexin. Although the sequence similarity between these two families based on bioinformatics is not conclusively determined, the gap junction channels encoded by these two gene families are structurally and functionally analogous. We recently reported an atomic structure of an invertebrate innexin gap junction channel using single-particle cryo-electron microscopy. Our findings revealed that connexin and innexin families share several structural properties with regard to their monomeric and oligomeric structures, while simultaneously suggesting a diversity of gap junction channels in nature. This review summarizes cutting-edge progress toward determining an innexin gap junction channel structure, as well as essential tips for preparing cryo-electron microscopy samples for high-resolution structural analysis of an innexin gap junction channel. PMID- 29036410 TI - SPRINT: an SNP-free toolkit for identifying RNA editing sites. AB - Motivation: RNA editing generates post-transcriptional sequence alterations. Detection of RNA editing sites (RESs) typically requires the filtering of SNVs called from RNA-seq data using an SNP database, an obstacle that is difficult to overcome for most organisms. Results: Here, we present a novel method named SPRINT that identifies RESs without the need to filter out SNPs. SPRINT also integrates the detection of hyper RESs from remapped reads, and has been fully automated to any RNA-seq data with reference genome sequence available. We have rigorously validated SPRINT's effectiveness in detecting RESs using RNA-seq data of samples in which genes encoding RNA editing enzymes are knock down or over expressed, and have also demonstrated its superiority over current methods. We have applied SPRINT to investigate RNA editing across tissues and species, and also in the development of mouse embryonic central nervous system. A web resource (http://sprint.tianlab.cn) of RESs identified by SPRINT has been constructed. Availability and implementation: The software and related data are available at http://sprint.tianlab.cn. Contact: weidong.tian@fudan.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036411 TI - Relative Validity of Nutrient Intakes Assessed by Questionnaire, 24-Hour Recalls, and Diet Records as Compared With Urinary Recovery and Plasma Concentration Biomarkers: Findings for Women. AB - We evaluated the performance of a semiquantitative food frequency questionnaire (SFFQ), the Automated Self-Administered 24-Hour Dietary Recall (ASA24), and 7-day dietary records (7DDRs), in comparison with biomarkers, in the estimation of nutrient intakes among 627 women in the Women's Lifestyle Validation Study (United States, 2010-2012). Two paper SFFQs, 1 Web-based SFFQ, 4 ASA24s (beta version), 2 7DDRs, 4 24-hour urine samples, 1 doubly labeled water measurement (repeated among 76 participants), and 2 fasting blood samples were collected over a 15-month period. The dietary variables evaluated were energy, energy-adjusted intakes of protein, sodium, potassium, and specific fatty acids, carotenoids, alpha-tocopherol, retinol, and folate. In general, relative to biomarkers, averaged ASA24s had lower validity than the SFFQ completed at the end of the data collection year (SFFQ2); SFFQ2 had slightly lower validity than 1 7DDR; the averaged SFFQs had validity similar to that of 1 7DDR; and the averaged 7DDRs had the highest validity. The deattenuated correlation of energy-adjusted protein intake assessed by SFFQ2 with its biomarker was 0.46, similar to its correlation with 7DDRs (deattenuated r = 0.54). These data indicate that the SFFQ2 provides reasonably valid measurements of energy-adjusted intake for most of the nutrients assessed in our study, consistent with earlier conclusions derived using 7DDRs as the comparison method. The ASA24 needs further evaluation for use in large population studies, but an average of 3 days of measurement will not be sufficient for some important nutrients. PMID- 29036412 TI - Radiomic subtyping improves disease stratification beyond key molecular, clinical, and standard imaging characteristics in patients with glioblastoma. AB - Background: The purpose of this study was to analyze the potential of radiomics for disease stratification beyond key molecular, clinical, and standard imaging features in patients with glioblastoma. Methods: Quantitative imaging features (n = 1043) were extracted from the multiparametric MRI of 181 patients with newly diagnosed glioblastoma prior to standard-of-care treatment (allocated to a discovery and a validation set, 2:1 ratio). A subset of 386/1043 features were identified as reproducible (in an independent MRI test-retest cohort) and selected for analysis. A penalized Cox model with 10-fold cross-validation (Coxnet) was fitted on the discovery set to construct a radiomic signature for predicting progression-free and overall survival (PFS and OS). The incremental value of a radiomic signature beyond molecular (O6-methylguanine-DNA methyltransferase [MGMT] promoter methylation, DNA methylation subgroups), clinical (patient's age, KPS, extent of resection, adjuvant treatment), and standard imaging parameters (tumor volumes) for stratifying PFS and OS was assessed with multivariate Cox models (performance quantified with prediction error curves). Results: The radiomic signature (constructed from 8/386 features identified through Coxnet) increased the prediction accuracy for PFS and OS (in both discovery and validation sets) beyond the assessed molecular, clinical, and standard imaging parameters (P <= 0.01). Prediction errors decreased by 36% for PFS and 37% for OS when adding the radiomic signature (compared with 29% and 27%, respectively, with molecular + clinical features alone). The radiomic signature was-along with MGMT status-the only parameter with independent significance on multivariate analysis (P <= 0.01). Conclusions: Our study stresses the role of integrating radiomics into a multilayer decision framework with key molecular and clinical features to improve disease stratification and to potentially advance personalized treatment of patients with glioblastoma. PMID- 29036413 TI - Smooth quantile normalization. AB - Between-sample normalization is a critical step in genomic data analysis to remove systematic bias and unwanted technical variation in high-throughput data. Global normalization methods are based on the assumption that observed variability in global properties is due to technical reasons and are unrelated to the biology of interest. For example, some methods correct for differences in sequencing read counts by scaling features to have similar median values across samples, but these fail to reduce other forms of unwanted technical variation. Methods such as quantile normalization transform the statistical distributions across samples to be the same and assume global differences in the distribution are induced by only technical variation. However, it remains unclear how to proceed with normalization if these assumptions are violated, for example, if there are global differences in the statistical distributions between biological conditions or groups, and external information, such as negative or control features, is not available. Here, we introduce a generalization of quantile normalization, referred to as smooth quantile normalization (qsmooth), which is based on the assumption that the statistical distribution of each sample should be the same (or have the same distributional shape) within biological groups or conditions, but allowing that they may differ between groups. We illustrate the advantages of our method on several high-throughput datasets with global differences in distributions corresponding to different biological conditions. We also perform a Monte Carlo simulation study to illustrate the bias-variance tradeoff and root mean squared error of qsmooth compared to other global normalization methods. A software implementation is available from https://github.com/stephaniehicks/qsmooth. PMID- 29036414 TI - Monthly variation in mammographic screening attendance in Norway. AB - Breast Cancer Awareness Month (BCAM) increases screening attendance in the USA. However, this effect has not been investigated in Europe, where organized screening is widespread. We examined monthly attendance within the Norwegian Breast Cancer Screening Programme, 2005-15. Relative to October, the odds of attending screening in January, February, March, August, September or December were slightly decreased (ORadj 0.93-0.98, P <= 0.003 for all). BCAM may marginally increase attendance in October but seasonal factors such as weather may also explain this observed variation. Furthermore, it is possible that organized screening with predetermined appointments evens out the effect BCAM has on screening attendance. PMID- 29036415 TI - Transfusion Transmissible Infections Among Walk-In Blood Donors at Kisumu Regional Blood Transfusion Centre, Kisumu County, Kenya, 2015. AB - Background: Transfusion transmissible infections (TTIs) are threats to blood safety. This study investigated TTIs among volunteer blood donors at the Kisumu Regional Blood Transfusion Centre (KRBTC) in Kenya. Methods: We performed a retrospective record review of blood donor registers at KRBTC, 2015. Walk-in donors accepted for donation were analyzed to determine prevalence of human immunodeficiency virus (HIV), hepatitis B (HBV), hepatitis C (HCV), and syphilis. Descriptive and associative statistics were calculated using Microsoft Excel and Open-Epi software. Results: The records of a total of 3690 walk-in donors were reviewed, and 2046 were included in the analysis. Mean age was 30 +/- 9.6 years, 76% male, 51% married, and 80% were Kisumu residents. Seroprevalence of HIV, HBV, HCV, and syphilis was 2.4%, 3.1%, 2.3%, and 1%, respectively. Conclusions: HBV was the most common TTI among the volunteers. KRBTC should be proactive and address issues of donor self-exclusion, strict adherence to donor selection criteria, and vaccination. PMID- 29036416 TI - Dementia, disclosing the diagnosis. PMID- 29036417 TI - Coprophagous Insects and the Ecology of Infectious Diseases of Wildlife. AB - A diversity of macro- and microparasitic species exert strong influences on wildlife population density, community structure, and ecosystem functioning, all through their impacts on individual host fitness. Through consuming, manipulating, and relocating wildlife feces, over 7,000 species of coprophagous dung beetles interact with a staggering diversity of wildlife parasites with fecal-oral transmission in ways that both increase and decrease transmission. Here, we review the mechanisms by which dung beetles influence micro- and macroparasite transmission and outline a future research framework that integrates theory and empirical insights to advance our understanding of how these relationships may interact with ongoing environmental change drivers to further influence wildlife populations and community structure. Any organism that significantly influences parasite transmission will impact multiple levels of biological organization. Therefore, improving our understanding of the role of dung beetle interactions within disease ecology will be key to future efforts to understand the overall dynamics of infection in wildlife and how parasites contribute to the maintenance of ecosystem structure and function and evolutionary processes in wild animals. PMID- 29036418 TI - Spironolactone-induced degradation of the TFIIH core complex XPB subunit suppresses NF-kappaB and AP-1 signalling. AB - Aims: Spironolactone (SPL) improves endothelial dysfunction and survival in heart failure. Immune modulation, including poorly understood mineralocorticoid receptor (MR)-independent effects of SPL might contribute to these benefits and possibly be useful in other inflammatory cardiovascular diseases such as pulmonary arterial hypertension. Methods and results: Using human embryonic kidney cells (HEK 293) expressing specific nuclear receptors, SPL suppressed NF kappaB and AP-1 reporter activity independent of MR and other recognized nuclear receptor partners. NF-kappaB and AP-1 DNA binding were not affected by SPL and protein synthesis blockade did not interfere with SPL-induced suppression of inflammatory signalling. In contrast, proteasome blockade to inhibit degradation of xeroderma pigmentosum group B complementing protein (XPB), a subunit of the general transcription factor TFIIH, or XPB overexpression both prevented SPL mediated suppression of inflammation. Similar to HEK 293 cells, a proteasome inhibitor blocked XPB loss and SPL suppression of AP-1 induced target genes in human pulmonary artery endothelial cells (PAECs). Unlike SPL, eplerenone (EPL) did not cause XPB degradation and failed to similarly suppress inflammatory signalling. SPL combined with siRNA XPB knockdown further reduced XPB protein levels and had the greatest effect on PAEC inflammatory gene transcription. Using chromatin-immunoprecipitation, PAEC target gene susceptibility to SPL was associated with low basal RNA polymerase II (RNAPII) occupancy and TNFalpha induced RNAPII and XPB recruitment. XP patient-derived fibroblasts carrying an N terminal but not C-terminal XPB mutations were insensitive to both SPL-mediated XPB degradation and TNFalpha-induced target gene suppression. Importantly, SPL treatment decreased whole lung XPB protein levels in a monocrotaline rat model of pulmonary hypertension and reduced inflammatory markers in an observational cohort of PAH patients. Conclusion: SPL has important anti-inflammatory effects independent of aldosterone and MR, not shared with EPL. Drug-induced, proteasome dependent XPB degradation may be a useful therapeutic approach in cardiovascular diseases driven by inflammation. PMID- 29036419 TI - An accurate algorithm for the detection of DNA fragments from dilution pool sequencing experiments. AB - Motivation: The short read lengths of current high-throughput sequencing technologies limit the ability to recover long-range haplotype information. Dilution pool methods for preparing DNA sequencing libraries from high molecular weight DNA fragments enable the recovery of long DNA fragments from short sequence reads. These approaches require computational methods for identifying the DNA fragments using aligned sequence reads and assembling the fragments into long haplotypes. Although a number of computational methods have been developed for haplotype assembly, the problem of identifying DNA fragments from dilution pool sequence data has not received much attention. Results: We formulate the problem of detecting DNA fragments from dilution pool sequencing experiments as a genome segmentation problem and develop an algorithm that uses dynamic programming to optimize a likelihood function derived from a generative model for the sequence reads. This algorithm uses an iterative approach to automatically infer the mean background read depth and the number of fragments in each pool. Using simulated data, we demonstrate that our method, FragmentCut, has 25-30% greater sensitivity compared with an HMM based method for fragment detection and can also detect overlapping fragments. On a whole-genome human fosmid pool dataset, the haplotypes assembled using the fragments identified by FragmentCut had greater N50 length, 16.2% lower switch error rate and 35.8% lower mismatch error rate compared with two existing methods. We further demonstrate the greater accuracy of our method using two additional dilution pool datasets. Availability and implementation: FragmentCut is available from https://bansal lab.github.io/software/FragmentCut. Contact: vibansal@ucsd.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036421 TI - LRCstats, a tool for evaluating long reads correction methods. AB - Motivation: Third-generation sequencing (TGS) platforms that generate long reads, such as PacBio and Oxford Nanopore technologies, have had a dramatic impact on genomics research. However, despite recent improvements, TGS reads suffer from high-error rates and the development of read correction methods is an active field of research. This motivates the need to develop tools that can evaluate the accuracy of noisy long reads correction tools. Results: We introduce LRCstats, a tool that measures the accuracy of long reads correction tools. LRCstats takes advantage of long reads simulators that provide each simulated read with an alignment to the reference genome segment they originate from, and does not rely on a step of mapping corrected reads onto the reference genome. This allows for the measurement of the accuracy of the correction while being consistent with the actual errors introduced in the simulation process used to generate noisy reads. We illustrate the usefulness of LRCstats by analyzing the accuracy of four hybrid correction methods for PacBio long reads over three datasets. Availability and implementation: https://github.com/cchauve/lrcstats. Contact: laseanl@sfu.ca or cedric.chauve@sfu.ca. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036422 TI - FLUKA-BASED MONTE CARLO INVESTIGATION OF MICRODOSIMETRIC DISTRIBUTIONS OF TELECOBALT BEAM. AB - FLUKA-based Monte Carlo calculations of microdosimetric distributions in water phantom involving a walled spherical Tissue-Equivalent Proportional Counter filled with tissue-equivalent propane gas have been studied for an indigenously developed telecobalt machine. The simulated site size considered in the study was 2 MUm. In the Monte Carlo calculations, field size was varied from 10 cm * 10 cm to 35 cm * 35 cm and the depth was varied as 5-20 cm. The study also includes calculation of microdosimetric distributions with a 30 degrees wedge filter. The efficiency of the calculations was improved up to a factor of 26 by choosing appropriate cut off values for production and transport of electrons. The calculated microdosimetric distributions of telecobalt machine is distinctly different from that of a bare 60Co source which is attributed to the influence of scattered photons from the machine head and the water phantom. PMID- 29036420 TI - TurboFold II: RNA structural alignment and secondary structure prediction informed by multiple homologs. AB - This paper presents TurboFold II, an extension of the TurboFold algorithm for predicting secondary structures for multiple RNA homologs. TurboFold II augments the structure prediction capabilities of TurboFold by additionally providing multiple sequence alignments. Probabilities for alignment of nucleotide positions between all pairs of input sequences are iteratively estimated in TurboFold II by incorporating information from both the sequence identity and secondary structures. A multiple sequence alignment is obtained from these probabilities by using a probabilistic consistency transformation and a hierarchically computed guide tree. To assess TurboFold II, its sequence alignment and structure predictions were compared with leading tools, including methods that focus on alignment alone and methods that provide both alignment and structure prediction. TurboFold II has comparable alignment accuracy with MAFFT and higher accuracy than other tools. TurboFold II also has comparable structure prediction accuracy as the original TurboFold algorithm, which is one of the most accurate methods. TurboFold II is part of the RNAstructure software package, which is freely available for download at http://rna.urmc.rochester.edu under a GPL license. PMID- 29036423 TI - Invasive micropapillary carcinoma component is an independent prognosticator of poorer survival in Stage III colorectal cancer patients. AB - Background: Invasive micropapillary carcinoma (IMPC) is an aggressive variant of adenocarcinoma found in several organs. Recent studies showed that IMPC in colorectal cancer leads to poorer prognosis than conventional colorectal cancer; however, the influence of IMPC on outcomes remains unclear. The present study aimed to identify the clinicopathological characteristics of colorectal cancers with IMPCs, and to evaluate the prognostic significance of IMPCs per se. Methods: We retrospectively analyzed data from 837 patients with colorectal cancer who underwent surgical treatment. We compared the clinicopathological characteristics and survival outcomes of colorectal cancer patients with IMPCs to those without. Results: Among 837 patients, 130 (16%) had an IMPC component, including 0 (0%) of 18, 9 (4.2%) of 215, 34 (13%) of 254, 59 (24%) of 249 and 28 (27%) of 101 patients with TNM Stages 0, I, II, III and IV, respectively. The 3-year disease free survival (DFS) rates were significantly worse for Stage III patients with IMPC than for those without (55.3% vs. 78.7% respectively, P < 0.001), but not in patients with other stages. Multivariate analyses of patients with Stage III colorectal cancer found IMPC to be associated with significantly worse DFS (P = 0.026), as were high CEA levels, tumor budding and TNM staging. IMPC was only significantly associated with tumor invasion (P = 0.045) and venous invasion (P = 0.045) in Stage III tumors. Conclusions: Identifying IMPC components in Stage III colorectal cancer is crucial, as their presence is significantly associated with poorer survival. PMID- 29036424 TI - Frailty and healthcare costs-longitudinal results of a prospective cohort study. AB - Objective: to investigate how frailty and frailty symptoms affect healthcare costs in older age longitudinally. Methods: data were gathered from a prospective cohort study in Saarland, Germany (two waves with 3-year interval, n = 1,636 aged 57-84 years at baseline). Frailty was assessed by the five Fried frailty criteria. Frailty was defined as having at least three criteria, the presence of 1-2 criteria as 'pre-frail'. Healthcare costs were quantified based on self reported healthcare use in the sectors of inpatient treatment, outpatient treatment, professional nursing care and informal care as well as the provision of pharmaceuticals, medical supplies and dental prostheses. Results: while the onset of pre-frailty did not increase (log) total healthcare costs after adjusting for potential confounders including comorbidity, progression from non frailty to frailty was associated with an increase in total healthcare costs (for example, costs increased by ~54 and 101% if 3 and 4 or 5 symptoms were present, respectively). This association of frailty onset with increased healthcare costs was in particular observed in the inpatient sector and for informal nursing care. Among the frailty symptoms, the onset of exhaustion was associated with an increase in total healthcare costs, whereas changes in slowness, weakness, weight loss and low-physical activity were not significantly associated with an increase in total healthcare costs. Conclusions: our data stress the economic relevance of frailty in late life. Postponing or reducing frailty might be fruitful in order to reduce healthcare costs. PMID- 29036425 TI - Motif independent identification of potential RNA G-quadruplexes by G4RNA screener. AB - Motivation: G-quadruplex structures in RNA molecules are known to have regulatory impacts in cells but are difficult to locate in the genome. The minimal requirements for G-quadruplex folding in RNA (G>=3N1-7 G>=3N1-7 G>=3N1-7 G>=3) is being challenged by observations made on specific examples in recent years. The definition of potential G-quadruplex sequences has major repercussions on the observation of the structure since it introduces a bias. The canonical motif only describes a sub-population of the reported G-quadruplexes. To address these issues, we propose an RNA G-quadruplex prediction strategy that does not rely on a motif definition. Results: We trained an artificial neural network with sequences of experimentally validated G-quadruplexes from the G4RNA database encoded using an abstract definition of their sequence. This artificial neural network, G4NN, evaluates the similarity of a given sequence to known G quadruplexes and reports it as a score. G4NN has a predictive power comparable to the reported G richness and G/C skewness evaluations that are the current state of-the-art for the identification of potential RNA G-quadruplexes. We combined these approaches in the G4RNA screener, a program designed to manage and evaluate the sequences to identify potential G-quadruplexes. Availability and implementation: G4RNA screener is available for download at http://gitlabscottgroup.med.usherbrooke.ca/J-Michel/g4rna_screener. Contact: jean michel.garant@usherbrooke.ca or jean-pierre.perreault@usherbrooke.ca or michelle.scott@usherbrooke.ca. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036428 TI - Exocyst, exosomes, and autophagy in the regulation of Brassicaceae pollen-stigma interactions. AB - Brassicaceae pollen-stigma interactions have been extensively studied in Brassica and Arabidopsis species to identify cellular events triggered in the stigmatic papillae by pollen contact. Compatible pollinations are linked to the activation of basal cellular responses in the stigmatic papillae, which include calcium gradients, actin networks, and polarized secretion. The occurrence of these cellular events in stigmatic papillae coincides with the stages of pollen hydration and pollen tube entry into the stigmatic papillar cell wall. However, the form of the vesicle trafficking appears to differ between species, with vesicle-like structures detected in Arabidopsis species while exosomes were found to be secreted in Brassica species. Around the same timeframe, self-incompatible pollen recognition leads altered cellular responses in the stigmatic papillae to interfere with basal compatible pollen responses and disrupt regulated secretion, causing self-pollen rejection. Here, the literature on the changing cellular dynamics in the stigmatic papillae following pollination is reviewed and discussed in the context of other well-characterized examples of polarized secretion in plants. PMID- 29036426 TI - Clinical outcome of patients with the Brugada type 1 electrocardiogram without prophylactic implantable cardioverter defibrillator in primary prevention: a cumulative analysis of seven large prospective studies. AB - Aims: Patients with the Brugada type 1 ECG (Br type 1) without previous aborted sudden death (aSD) who do not have a prophylactic ICD constitute a very large population whose outcome is little known. The objective of this study was to evaluate the risk of SD or aborted SD (aSD) in these patients. Methods and results: We conducted a meta-analysis and cumulative analysis of seven large prospective studies involving 1568 patients who had not received a prophylactic ICD in primary prevention. Patients proved to be heterogeneous. Many were theoretically at low risk, in that they had a drug-induced Br type 1 (48%) and/or were asymptomatic (87%), Others, in contrast, had one or more risk factors. During a mean/median follow-up ranging from 30 to 48 months, 23 patients suffered SD and 1 had aSD. The annual incidence of SD/aSD was 0.5% in the total population, 0.9% in patients with spontaneous Br type 1 and 0.08% in those with drug-induced Br type 1 (P = 0.0001). The paper by Brugada et al. reported an incidence of SD more than six times higher than the other studies, probably as a result of selection bias. On excluding this paper, the annual incidence of SD/aSD in the remaining 1198 patients fell to 0.22% in the total population and to 0.38 and 0.06% in spontaneous and drug-induced Br type 1, respectively. Of the 24 patients with SD/aSD, 96% were males, the mean age was 39 +/- 15 years, 92% had spontaneous Br type 1, 61% had familial SD (f-SD), and only 18.2% had a previous syncope; 43% had a positive electrophysiological study. Multiple meta-analysis of individual trials showed that spontaneous Br type 1, f-SD, and previous syncope increased the risk of SD/aSD (RR 2.83, 2.49, and 3.03, respectively). However, each of these three risk factors had a very low positive predictive value (PPV) (1.9-3.3%), while negative predictive values (NPV) were high (98.5-99.7%). The incidence of SD/aSD was only slightly higher in patients with syncope than in asymptomatic patients (2% vs. 1.5%, P = 0.6124). Patients with SD/aSD when compared with the others had a mean of 1.74 vs. 0.95 risk factors (P = 0.026). Conclusion: (i) In patients with Br type 1 ECG without an ICD in primary prevention, the risk of SD/aSD is low, particularly in those with drug-induced Br type 1; (ii) spontaneous Br type 1, f-SD, and syncope increase the risk. However, each of these risk factors individually has limited clinical usefulness, owing to their very low PPV; (iii) patients at highest risk are those with more than one risk factor. PMID- 29036427 TI - Impact of achieved blood pressure on renal function decline and first stroke in hypertensive patients with chronic kidney disease. AB - Background: The effect of achieved blood pressure (BP) on first stroke and renal function decline among hypertensive patients with mild to moderate chronic kidney disease (CKD) is still uncertain. Methods: In total, 3230 hypertensive patients with estimated glomerular filtration rate 30-60 mL/min/1.73 m2 and/or proteinuria were included in the present analyses. Eligible participants were randomly assigned to a daily treatment of a combined enalapril 10 mg and folic acid 0.8 mg tablet or an enalapril 10 mg tablet alone. Participants were followed up every 3 months. The study outcomes included first stroke and the progression of CKD. Results: The median antihypertensive treatment duration was 4.7 years. Compared with participants with a time-averaged on-treatment systolic blood pressure (SBP) of 135 to <=140 mmHg, the incidence of total first stroke [1.7% versus 3.3%; hazard ratio (HR), 0.51; 95% confidence interval (CI): 0.26-0.99] and ischemic stroke (1.3% versus 2.8%; HR, 0.46; 95% CI: 0.22-0.98) decreased significantly in those with a time-averaged SBP of <=135 mmHg. Furthermore, a time-averaged diastolic blood pressure (DBP) of <=80 mmHg, compared with a time-averaged DBP level of 80 to <=90 mmHg, was significantly related to a decreased risk of hemorrhagic stroke (0.2% versus 0.9%; HR, 0.18; 95% CI: 0.04-0.80). However, compared with participants with a time-averaged SBP of 135 to <=140 mmHg, a lower but non-significant trend of CKD progression was found in those with a time averaged SBP of <=130 mmHg. Conclusions: A BP treatment level of <=135/80 mmHg, compared with a BP treatment level of 135-140/80-90 mmHg, could lead to a decreased risk of first stroke in hypertensive patients with mild-to-moderate CKD. PMID- 29036429 TI - Genome re-annotation of the wild strawberry Fragaria vesca using extensive Illumina- and SMRT-based RNA-seq datasets. AB - The genome of the wild diploid strawberry species Fragaria vesca, an ideal model system of cultivated strawberry (Fragaria * ananassa, octoploid) and other Rosaceae family crops, was first published in 2011 and followed by a new assembly (Fvb). However, the annotation for Fvb mainly relied on ab initio predictions and included only predicted coding sequences, therefore an improved annotation is highly desirable. Here, a new annotation version named v2.0.a2 was created for the Fvb genome by a pipeline utilizing one PacBio library, 90 Illumina RNA-seq libraries, and 9 small RNA-seq libraries. Altogether, 18,641 genes (55.6% out of 33,538 genes) were augmented with information on the 5' and/or 3' UTRs, 13,168 (39.3%) protein-coding genes were modified or newly identified, and 7,370 genes were found to possess alternative isoforms. In addition, 1,938 long non-coding RNAs, 171 miRNAs, and 51,714 small RNA clusters were integrated into the annotation. This new annotation of F. vesca is substantially improved in both accuracy and integrity of gene predictions, beneficial to the gene functional studies in strawberry and to the comparative genomic analysis of other horticultural crops in Rosaceae family. PMID- 29036431 TI - Longitudinal outcomes of radiofrequency ablation versus surveillance endoscopy for Barrett's esophagus with low-grade dysplasia. AB - Radiofrequency ablation of Barrett's esophagus with low-grade dysplasia is recommended in recent American College of Gastroenterology guidelines, with endoscopic surveillance considered a reasonable alternative. Few studies have directly compared outcomes of radiofrequency ablation to surveillance and those that have are limited by short duration of follow-up. This study aims to compare the long-term effectiveness of radiofrequency ablation versus endoscopic surveillance in a large, longitudinal cohort of patients with Barrett's esophagus, and low-grade dysplasia.We conducted a retrospective analysis of patients with confirmed low-grade dysplasia at a single academic medical center from 1991 to 2014. Patients progressing to high-grade dysplasia or esophageal adenocarcinoma within one year of index LGD endoscopy were defined as missed dysplasia and excluded. Risk factors for progression were assessed via Cox proportional hazards model. Comparison of progression risk was conducted using a Kaplan-Meier analysis. Subset analyses were conducted to examine the effect of reintroducing early progressors and excluding patients diagnosed prior to the advent of ablative therapy. Of 173 total patients, 79 (45.7%) underwent radiofrequency ablation while 94 (54.3%) were untreated, with median follow up of 90 months. Seven (8.9%) patients progressed to high-grade dysplasia or adenocarcinoma despite ablation, compared with 14 (14.9%) undergoing surveillance (P = 0.44). This effect was preserved when patients diagnosed prior to the introduction of radiofrequency ablation were excluded (8.9% vs 13%, P = 0.68). Reintroduction of patients progressing within the first year of follow-up resulted in a trend toward significance for ablation versus surveillance (11.1% vs 23.8%, P = 0.053).In conclusion, progression to high-grade dysplasia or adenocarcinoma was not significantly reduced in the radiofrequency ablation cohort when compared to surveillance. Despite recent studies suggesting the superiority of radiofrequency ablation in reducing progression, diligent endoscopic surveillance may provide similar long-term outcomes. PMID- 29036430 TI - Delta Vs Gamma Auditory Steady State Synchrony in Schizophrenia. AB - Background: Delta band (1-4 Hz) neuronal responses support the precision and stability of auditory processing, and a deficit in delta band synchrony may be relevant to auditory domain symptoms in schizophrenia patients. Methods: Delta band synchronization elicited by a 2.5 Hz auditory steady state response (ASSR) paradigm, along with those from theta (5 Hz), alpha (10 Hz), beta (20 Hz), gamma (40 Hz), and high gamma (80 Hz) frequency ASSR, were compared in 128 patients with schizophrenia, 108 healthy controls, and 55 first-degree relatives (FDR) of patients. Results: Delta band synchronization was significantly impaired in patients compared with controls (F = 18.3, P < .001). There was a significant 2.5 Hz by 40 Hz ASSR interaction (P = .023), arising from a greater reduction of 2.5 Hz ASSR than of 40 Hz ASSR, in patients compared with controls. Greater deficit in delta ASSR was associated with auditory perceptual abnormality (P = .007) and reduced verbal working memory (P < .001). Gamma frequency ASSR impairment was also significant but more modest (F = 8.7, P = .004), and this deficit was also present in FDR (P = .022). Conclusions: The ability to sustain delta band oscillation entrainment in the auditory pathway is significantly reduced in schizophrenia patients and appears to be clinically relevant. PMID- 29036433 TI - Left Ventricular Hypertrophy Predicts Cardiovascular Events in Hypertensive Patients With Coronary Artery Calcifications. AB - BACKGROUND: Coronary artery calcification (CAC) is associated with increased cardiovascular (CV) risk. Left ventricular hypertrophy (LVH) is an independent risk factor for CV events. Our aim was to estimate the relative CV risk of LVH in the presence of CAC. METHODS: We included asymptomatic hypertensive patients who were enrolled in the calcification arm of the INSIGHT (International Nifedipine Study Intervention as Goal for Hypertension Therapy). Patients had baseline echocardiography and computed tomography to assess CAC. The primary end-point was the first CV event. RESULTS: Two hundred and fifty-two subjects (mean age 64.7 +/ 5.5 years, 54% men) were followed for a mean of 13.3 +/- 2.6 years. 72 patients (28.5%) had LVH and 159 patients (63%) had CAC. During follow up, 89 patients had a first CV event. The rate of CV events was higher in those with than in those without CAC (43.4% vs. 21.5%, P < 0.01) and in those with than in those without LVH (44% vs. 31.6%, P < 0.01). However, LVH had no effect on CV events in the absence of CAC, whereas LVH almost doubled the rate of CV events (61.4% vs. 36.5%, P < 0.01) in the presence of CAC. In comparison to patients without CAC and without LVH the hazard ratio for CV event in those with LVH was 1.46 (95% confidence interval [CI], 0.50-4.21) in those without CAC and 4.4 (95% CI, 2.02 9.56) in those with CAC. CONCLUSIONS: LVH and CAC independently predict CV events in asymptomatic hypertensive patients. However, the risk of LVH is mainly observed in those with CAC. PMID- 29036432 TI - Copb2 is essential for embryogenesis and hypomorphic mutations cause human microcephaly. AB - Primary microcephaly is a congenital brain malformation characterized by a head circumference less than three standard deviations below the mean for age and sex and results in moderate to severe mental deficiencies and decreased lifespan. We recently studied two children with primary microcephaly in an otherwise unaffected family. Exome sequencing identified an autosomal recessive mutation leading to an amino acid substitution in a WD40 domain of the highly conserved Coatomer Protein Complex, Subunit Beta 2 (COPB2). To study the role of Copb2 in neural development, we utilized genome-editing technology to generate an allelic series in the mouse. Two independent null alleles revealed that Copb2 is essential for early stages of embryogenesis. Mice homozygous for the patient variant (Copb2R254C/R254C) appear to have a grossly normal phenotype, likely due to differences in corticogenesis between the two species. Strikingly, mice heterozygous for the patient mutation and a null allele (Copb2R254C/Zfn) show a severe perinatal phenotype including low neonatal weight, significantly increased apoptosis in the brain, and death within the first week of life. Immunostaining of the Copb2R254C/Zfnbrain revealed a reduction in layer V (CTIP2+) neurons, while the overall cell density of the cortex is unchanged. Moreover, neurospheres derived from animals with Copb2 variants grew less than control. These results identify a general requirement for COPB2 in embryogenesis and a specific role in corticogenesis. We further demonstrate the utility of CRISPR-Cas9 generated mouse models in the study of potential pathogenicity of variants of potential clinical interest. PMID- 29036434 TI - Novel mechanisms of eIF2B action and regulation by eIF2alpha phosphorylation. AB - Eukaryotic translation initiation factor 2 (eIF2) is a heterotrimeric GTPase, which plays a critical role in protein synthesis regulation. eIF2-GTP binds Met tRNAi to form the eIF2-GTP*Met-tRNAi ternary complex (TC), which is recruited to the 40S ribosomal subunit. Following GTP hydrolysis, eIF2-GDP is recycled back to TC by its guanine nucleotide exchange factor (GEF), eIF2B. Phosphorylation of the eIF2alpha subunit in response to various cellular stresses converts eIF2 into a competitive inhibitor of eIF2B, which triggers the integrated stress response (ISR). Dysregulation of eIF2B activity is associated with a number of pathologies, including neurodegenerative diseases, metabolic disorders, and cancer. However, despite decades of research, the underlying molecular mechanisms of eIF2B action and regulation remain unknown. Here we employ a combination of NMR, fluorescence spectroscopy, site-directed mutagenesis, and thermodynamics to elucidate the mechanisms of eIF2B action and its regulation by phosphorylation of the substrate eIF2. We present: (i) a novel mechanism for the inhibition of eIF2B activity, whereby eIF2alpha phosphorylation destabilizes an autoregulatory intramolecular interaction within eIF2alpha; and (ii) the first structural model for the complex of eIF2B with its substrate, eIF2-GDP, reaction intermediates, apo-eIF2 and eIF2-GTP, and product, TC, with direct implications for the eIF2B catalytic mechanism. PMID- 29036435 TI - The WUSCHEL-related homeobox 5a (PtoWOX5a) is involved in adventitious root development in poplar. AB - Adventitious rooting is an essential step in vegetative propagation. Currently, the mechanism that regulates adventitious root (AR) development in woody plants is poorly understood. This work demonstrates that Populus tomentosa WUSCHEL related homeobox 5a (PtoWOX5a) transcription factor is involved in AR development in poplar. PtoWOX5a was specifically expressed in the AR tip and lateral root tip during AR and lateral root regeneration from the stem segment. Phenotypic complementation experiments indicated that the PtoWOX5a can functionally complement AtWOX5 in quiescent center (QC) cells. Overexpression of PtoWOX5a introduces significant developmental phenotypes in roots and leaves, such as increased AR number, decreased AR length, swollen AR tip and lateral root tip, and decreased leaf number and area. The conserved mechanism of D-type cyclins (CYCD) repression mediated by WOX5 was confirmed in poplar. The co-expression network of PtWOX5a was constructed, which provided clues to reveal the molecular mechanism of PtoWOX5a in AR development in poplar. Taken together, our results suggest that the PtoWOX5a is involved in AR development though cooperating with a series of functional genes. PMID- 29036436 TI - Prevalence of adult overweight and obesity in 20 European countries, 2014. AB - Background: Monitoring obesity and overweight prevalence is important for assessing interventions aimed at preventing or reducing the burden of obesity. This study aimed to provide current data regarding the prevalence of overweight and obesity of adults, from 20 European countries. Methods: Participants were 34 814 (16 482 men) adults with mean age 50.8 +/- 17.7. Data from European Social Survey round 7, 2014, were analysed. Body mass index (BMI) was calculated from self-reported height and weight. Results: The proportion of underweight was only 2%, and 44.9% for normal weight. Overweight and obese accounted for 53.1%. More men than women were overweight (44.7% vs. 30.5%). Older adults were significantly more overweight (42.4%) and obese (20.9%) than middle age and younger adults. Retired people account for a greater proportion of overweight (42.0%) and obese (21.5%), when compared with employed, unemployed and students. People from rural areas were significantly more overweight (39.1 vs. 36.1%) and obese (17.0 vs. 15.3%) than those who lived in urban areas. The estimates indicate that the highest prevalence of overweight was in Czech Republic (45.2%), Hungary (43.7%) and Lithuania (41.7%). For obesity, Slovenia (20.8%), Estonia (19.7%) and the United Kingdom (19.2%) were the countries with the highest prevalence. Conclusion: Even though data was self-reported, and individuals tend to overestimate their height and underestimate their weight, the prevalence of overweight and obesity is considered high. More than half of the European population is overweight and obese. This study strengthens and updates the claims of an excessive weight epidemic in Europe. PMID- 29036438 TI - A selective sphingosine-1-phosphate receptor 1 agonist SEW-2871 aggravates gastric cancer by recruiting myeloid-derived suppressor cells. AB - The immune status of tumor microenvironment in gastric cancer is poorly understood, which limits the development of novel strategies in this field. Sphingosine-1-phosphate (S1P) acts as an immune modulator, but the role of S1P in gastric cancer is elusive. Here, we aim to investigate S1P receptor 1 (S1P1) mediated effect of S1P in gastric cancer. We generated a xenograft mouse model and used SEW-2871, a S1P1 specific agonist to activate S1P1 signalling. Tumor infiltrating lymphocytes (TILs) were isolated and analysed using flow cytometry. Chemokine expression of tumor cells was evaluated using quantitative real-time polymerase chain reaction. Myeloid-derived suppressor cells (MDSCs) migration was assessed using Transwell chambers. SEW-2871 promoted tumor growth in our mouse model, and induced a higher level of MDSC and a reduced level of CD8+CD69+ T cells within tumor. Consistently, the anti-tumoral function of cytotoxic T lymphocytes was impaired in mice with SEW-2871 treatment. Additionally, SEW-2871 enhanced expression of several MDSC recruitment-associated chemokines (CXCL12, CXCL5 and CCL2) in tumor cells. These chemokines facilitated MDSC migration by interaction with CCR2, CXCR2 and CXCR4. S1P1 signalling promoted gastric cancer by enhancing chemokine expression in tumor cells and recruiting MDSC to tumor microenvironment, which impaired anti-tumoral function of TILs. PMID- 29036437 TI - Fimbrins 4 and 5 Act Synergistically During Polarized Pollen Tube Growth to Ensure Fertility in Arabidopsis. AB - The germination and polar growth of pollen are prerequisite for double fertilization in plants. The actin cytoskeleton and its binding proteins play pivotal roles in pollen germination and pollen tube growth. Two homologs of the actin-bundling protein fimbrin, AtFIM4 and AtFIM5, are highly expressed in pollen in Arabidopsis and can form distinct actin architectures in vitro, but how they co-operatively regulate pollen germination and pollen tube growth in vivo is largely unknown. In this study, we explored their functions during pollen germination and polar growth. Histochemical analysis demonstrated that AtFIM4 was expressed only after pollen grain hydration and, in the early stage of pollen tube growth, the expression level of AtFIM4 was low, indicating that it functions mainly during polarized tube growth, whereas AtFIM5 had high expression levels in both pollen grains and pollen tubes. Atfim4/atfim5 double mutant plants had fertility defects including reduced silique length and seed number, which were caused by severe defects in pollen germination and pollen tube growth. When the atfim4/atfim5 double mutant was complemented with the AtFIM5 protein, the polar growth of pollen tubes was fully rescued; however, AtFIM4 could only partially restore these defects. Fluorescence labeling showed that loss of function of both AtFIM4 and AtFIM5 decreased the extent of actin filament bundling throughout pollen tubes. Collectively, our results revealed that AtFIM4 acts co-ordinately with AtFIM5 to organize and maintain normal actin architecture in pollen grains and pollen tubes to fulfill double fertilization in plants. PMID- 29036439 TI - Do brief alcohol interventions among unemployed at-risk drinkers increase re employment after 15 month? AB - Background: At-risk alcohol use is associated bi-directionally to unemployment, and decreases chances of re-employment. Brief alcohol interventions (BAI) can reduce at-risk alcohol use. This study aimed to investigate 15-month effects of BAI on unemployment among persons with at-risk alcohol use. Methods: As part of the randomized controlled 'Trial on proactive alcohol interventions among job seekers, TOPAS', 1243 18- to 64-year-old job-seekers with at-risk alcohol use were systematically recruited at three job agencies in Germany (2008/09), and randomized to (i) a stage tailored intervention based on the trans-theoretical model of intentional behavior change (ST), (ii) a non-stage tailored intervention based on the theory of planned behavior (NST) and (iii) assessment only (AO). To test the effects of ST and NST on employment status 15 months after baseline, latent growth models were calculated among those initially unemployed (n = 586). Results: In all three groups, unemployment significantly decreased over 15 months (ST: odds ratio, OR = 0.06; 95% confidence interval, CI: 0.01-0.27; NST: OR = 0.04; 95% CI: 0.01-0.18; AO: OR = 0.05; 95% CI: 0.01-0.21). No intervention effects were found on unemployment. Age (P = 0.002), school education (P = 0.001), self-rated health (P = 0.04), the Alcohol Use Disorder Identification Test-Consumption score (P = 0.02) and motivation to change (P = 0.04) significantly affected the development of unemployment over time. Conclusion: After 15 months, no BAI effect on unemployment was found. The mediated effect of BAIs on unemployment could be a longsome process needing longer follow-ups to be detected. PMID- 29036440 TI - Analysis and prediction of protein folding energy changes upon mutation by element specific persistent homology. AB - Motivation: Site directed mutagenesis is widely used to understand the structure and function of biomolecules. Computational prediction of mutation impacts on protein stability offers a fast, economical and potentially accurate alternative to laboratory mutagenesis. Most existing methods rely on geometric descriptions, this work introduces a topology based approach to provide an entirely new representation of mutation induced protein stability changes that could not be obtained from conventional techniques. Results: Topology based mutation predictor (T-MP) is introduced to dramatically reduce the geometric complexity and number of degrees of freedom of proteins, while element specific persistent homology is proposed to retain essential biological information. The present approach is found to outperform other existing methods in the predictions of globular protein stability changes upon mutation. A Pearson correlation coefficient of 0.82 with an RMSE of 0.92 kcal/mol is obtained on a test set of 350 mutation samples. For the prediction of membrane protein stability changes upon mutation, the proposed topological approach has a 84% higher Pearson correlation coefficient than the current state-of-the-art empirical methods, achieving a Pearson correlation of 0.57 and an RMSE of 1.09 kcal/mol in a 5-fold cross validation on a set of 223 membrane protein mutation samples. Availability and implementation: http://weilab.math.msu.edu/TML/TML-MP/. Contact: wei@math.msu.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036443 TI - Associations of Perceived Mental Stress, Sense of Purpose in Life, and Negative Life Events With the Risk of Incident Herpes Zoster and Postherpetic Neuralgia: The SHEZ Study. AB - In the present population-based prospective study, we examined the associations of psychosocial factors with the incidence of herpes zoster (HZ) and postherpetic neuralgia (PHN). Data were collected from 12,359 participants (>=50 years of age) who answered a self-completed health questionnaire in the Shozu County of Kagawa Prefecture in Japan. During a 3-year follow-up between December 2008 and November 2012, HZ and PHN were diagnosed in 400 and 79 subjects, respectively. We used Cox regression analysis to estimate hazard ratios of incident HZ and PHN according to psychosocial factors, adjusting for age, sex, histories of HZ, cancer, and diabetes, smoking and drinking habits, and time from disease onset to treatment. Men with high levels of mental stress were twice as likely to be at risk for incident HZ. The risk of incident HZ was approximately 60% lower among men and women who reported a high sense of purpose in life. Women who experienced negative life events-particularly changes in their work, living environment, and relationships-had a 2- to 3-fold higher risk of incident PHN. Psychosocial factors such as perceived mental stress, sense of purpose in life, and negative life events may contribute to the development of HZ and PHN in the general population. PMID- 29036441 TI - The role of the ER stress-response protein PERK in rhodopsin retinitis pigmentosa. AB - Mutations in rhodopsin, the light-sensitive protein of rod cells, are the most common cause of dominant retinitis pigmentosa (RP), a type of inherited blindness caused by the dysfunction and death of photoreceptor cells. The P23H mutation, the most frequent single cause of RP in the USA, causes rhodopsin misfolding and induction of the unfolded protein response (UPR), an adaptive ER stress response and signalling network that aims to enhance the folding and degradation of misfolded proteins to restore proteostasis. Prolonged UPR activation, and in particular the PERK branch, can reduce protein synthesis and initiate cell death through induction of pro-apoptotic pathways. Here, we investigated the effect of pharmacological PERK inhibition on retinal disease process in the P23H-1 transgenic rat model of retinal degeneration. PERK inhibition with GSK2606414A led to an inhibition of eIF2alpha phosphorylation, which correlated with reduced ERG function and decreased photoreceptor survival at both high and low doses of PERK inhibitor. Additionally, PERK inhibition increased the incidence of inclusion formation in cultured cells overexpressing P23H rod opsin, and increased rhodopsin aggregation in the P23H-1 rat retina, suggesting enhanced P23H misfolding and aggregation. In contrast, treatment of P23H-1 rats with an inhibitor of eIF2alpha phosphatase, salubrinal, led to improved photoreceptor survival. Collectively, these data suggest the activation of PERK is part of a protective response to mutant rhodopsin that ultimately limits photoreceptor cell death. PMID- 29036442 TI - Global inhibition of transcription causes an increase in histone H2A.Z incorporation within gene bodies. AB - H2A.Z histone variant is an important regulator of gene transcription, which is enriched at regulatory regions but is also found within gene bodies. Recent evidence suggests that active recruitment of H2A.Z within gene bodies is required to induce gene repression. In contrast to this view, we show that global inhibition of transcription results in H2A.Z accumulation at gene transcription start sites, as well as within gene bodies. Our results indicate that accumulation of H2A.Z within repressed genes can also be a consequence of the repression of gene transcription rather than an active mechanism required to establish the repression. PMID- 29036444 TI - The Elephant in the room: toward a more ethical approach with accountability toward intended beneficiaries in humanitarian aid. AB - There is considerable tension between the concept of accountability to beneficiaries and its practice in humanitarian aid. The beneficiaries live in a relationship that is asymmetric; upward or horizontal accountability within the aid system alone-even with the best of intentions-might be short-sighted. Could beneficiaries be effectively involved in programing, priority setting or allocation of resources? Is there space for a rights-based approach in aid delivery and operations? The mind-set, governance and structure of operations in aid agencies may need significant institutional reform to share the process of decision-making, and to transform the current dynamic from connecting resources to brokering better governance, true collaboration and co-operation among all stakeholders. This article provides a background and overview of accountability in aid, sheds light onto its underlying challenges, and positive and negative effects through the lens of organizational and social ethics, explores practical and feasible ways to strengthen beneficiaries' participation and empowerment, and call upon aid agencies to integrate beneficiaries' views in aid operations, and exercise true solidarity. PMID- 29036445 TI - DEVELOPMENT, VALIDATION AND DEMONSTRATION OF THE NTHU FLIGHT DOSE CALCULATOR. AB - Galactic cosmic-ray-induced air showers constitute the largest source of radiation exposure for aircrew and passengers. To facilitate the evaluation of effective doses received by this population, a database containing dose rates of various radiation components in the atmosphere was established; the parameterization accounted for altitude, geomagnetic rigidity and solar modulation. Energy spectra of secondary cosmic rays and effective dose rates were calculated using the FLUKA Monte Carlo code. An auxiliary MATLAB program with a graphical user interface was developed to estimate the aviation route dose through interpolation and integration. The dose calculator was benchmarked by comparing its predictions with data from other assessments. Finally, a set of representative flight routes of substantial interest in Taiwan was selected and evaluated. PMID- 29036446 TI - Cardiac resynchronization therapy when no lateral pacing option exists: vectorcardiographic guided non-lateral left ventricular lead placement predicts acute hemodynamic response. AB - Aims: A difficult cardiac resynchronization therapy (CRT) implantation scenario emerges when no lateral pacing option exists. The aim of this study was to explore the effect of biventricular pacing (BIVP) on vectorcardiographic parameters in patients with a non-lateral left ventricular (LV) lead position. We hypothesized that perimeter and area reduction for both the QRS complex and T wave would predict acute CRT response. Methods and results: Twenty-six patients (14 ischaemic) with a mean age of 63 +/- 10 years and standard CRT indication underwent device implantation with continuous LV pressure registration. The LV lead was placed in either an anterior or apical position. Biventricular pacing was performed at a rate 10% above intrinsic rhythm with acute CRT response defined as LV DeltadP/dtmax >10%. Using this criterion 12 patients were identified as acute CRT responders (responders: 16.7 +/- 4.8% vs. non-responders: 1.9 +/- 5.3%, P < 0.001). Vectorcardiographic assessment of the QRS complex and T wave were performed at baseline and under BIVP. Based on the observed changes in three-dimensional area and perimeter, DeltaQRS-area (responders: -46.7 +/- 39.6% vs. non-responders: 1.1 +/- 50.9%, P = 0.006) was considered as the preferred parameter. Receiver operating characteristic curve analysis identified -40% as the optimal cut-off value (sensitivity 67% and specificity 93%) for prediction of acute CRT response (AUC = 0.81, P < 0.01). A significant correlation was observed between LV DeltadP/dtmax and DeltaQRS-area (R2 = 0.37, P = 0.001). Conclusion: DeltaQRS-area is correlated to LV DeltadP/dtmax and predicts acute CRT response in patients with a non-lateral LV lead position. Assessment of DeltaQRS-area might be a useful tool for patient specific LV lead placement when no lateral pacing option exists. PMID- 29036447 TI - Plant exosomes: using an unconventional exit to prevent pathogen entry? AB - The ability to ward off filamentous pathogens, such as powdery mildew fungi, is one of the best studied examples of membrane trafficking-dependent disease resistance in plants. Here, papilla formation at the site of attack is essential for the pre-invasive immunity, whereas the encasement can hamper disease post invasively. Exosomes containing antifungal peptides and small RNAs are thought to play a vital role in forming papillae and encasements that block fungal growth. While exosomes are well described in mammals, and have been shown to play important roles in cell-cell communication regulating development and disease, their function is not well-known in plants. In this review, we focus on some of the recent discoveries on plant exosomes and try to link this information with our current understanding of how plants use this form of unconventional secretion to acquire this durable and effective form of resistance. PMID- 29036448 TI - Interleukin 6 secretion from alternatively activated macrophages promotes the migration of endometriotic epithelial cells. AB - Accumulating evidence has suggested an interaction between endometriotic cells and macrophages in the endometriotic microenvironment and the potential role of this interaction in the pathogenesis of endometriosis. However, how endometriotic cells communicate with macrophages to influence their function is poorly understood. In the present study, we found that the mRNA expression and production of CC chemokine ligand 2 (CCL2) were much higher in human endometriotic epithelial cells (11Z and 12Z) than those in human endometrial epithelial cells (HES). The inhibition of CCL2 action using neutralizing antibodies substantially suppressed macrophage migration induced by endometriotic epithelial cells. The endometriosis-associated macrophages (EAMs), which are the macrophages that are stimulated by the conditioned medium (CM) of human endometriotic cells, highly expressed the M2 phenotype markers (MRC1 and TREM2). In addition, the CM of EAMs significantly increased cell migration in 12Z cells, but no significant change was observed in cell growth. RT-PCR and antibody array analyses revealed that EAMs highly express and produce interleukin (IL) 6 compared to macrophages stimulated by the CM of HES cells. Moreover, the EAM-CM induced migration and MMP2/9 expression in endometriotic cells were significantly attenuated by IL6 signaling inhibition. These results suggest a reciprocal activation of macrophages and endometriotic cells via the soluble factors CCL2 and IL6, which may contribute to the development of endometriosis. PMID- 29036449 TI - Resveratrol attenuates bone cancer pain through regulating the expression levels of ASIC3 and activating cell autophagy. AB - Bone cancer pain (BCP) is one of the most common pains in patients with malignant cancers. The mechanism underlying BCP is largely unknown. Our previous studies and the increasing evidence both have shown that acid-sensing ion channels 3 (ASIC3) is an important protein in the pathological pain state in some pain models. We hypothesized that the expression change of ASIC3 might be one of the factors related to BCP. In this study, we established the BCP model through intrathecally injecting rat mammary gland carcinoma cells (MRMT-1) into the left tibia of Sprague-Dawley female rats, and found that the BCP rats showed bone destruction, increased mechanical pain sensitivities and up-regulated ASIC3 protein expression levels in L4-L6 dorsal root ganglion. Then, resveratrol, which was intraperitoneally injected into the BCP rats on post-operative Day 21, dose dependently increased the paw withdrawal threshold of BCP rats, reversed the pain behavior, and had an antinociceptive effect on BCP rats. In ASIC3-transfected SH SY5Y cells, the ASIC3 protein expression levels were regulated by resveratrol in a dose- and time-dependent manner. Meanwhile, resveratrol also had an antinociceptive effect in ASIC3-mediated pain rat model. Furthermore, resveratrol also enhanced the phosphorylation of AMPK, SIRT1, and LC3-II levels in ASIC3 transfected SH-SY5Y cells, indicating that resveratrol could activate the AMPK SIRT1-autophagy signal pathway in ASIC3-transfected SH-SY5Y cells. In BCP rats, SIRT1 and LC3-II were also down-regulated. These findings provide new evidence for the use of resveratrol as a therapeutic treatment during BCP states. PMID- 29036450 TI - Crosstalk between Nitric Oxide and MPK1/2 Mediates Cold Acclimation-induced Chilling Tolerance in Tomato. AB - The participation of nitric oxide (NO) in the responses of plants towards biotic and abiotic stresses is well established. However, the mechanism involved particularly in cold acclimation-induced chilling tolerance remains elusive. Here we show the cold acclimation induced-chilling tolerance was associated with inductions of nitrate reductase (NR)-dependent NO production, S-nitrosylated glutathione reductase (GSNOR) activity and mitogen-activated protein kinases MPK1/2 activation in tomato plants. Silencing of NR resulted in decreased GSNOR activity and MPK1/2 activation, which subsequently compromised cold acclimation induced chilling tolerance. By contrast, silencing of GSNOR caused decreased NR activity, increased NO accumulation and MPK1/2 activation, and enhanced cold acclimation-induced chilling tolerance. Furthermore, co-silencing of MPK1 and MPK2 attenuated the NR-dependent NO production and cold acclimation-induced tolerance to chilling. Results from present study suggest the importance of MPK1/2 for the induction of NR-dependent NO generation, while the accumulation of nitrosylated glutathione from NO-derived reactive nitrogen species could potentially S-nitrosylate NR. These findings provide new insight into the crosstalk of NO and MPK1/2 in cold acclimation-induced chilling tolerance in tomato plants. PMID- 29036451 TI - Genetic Mapping and Phylogenetic Analysis Reveal Intraspecific Variation in Sex Chromosomes of the Virginian Strawberry. AB - With their extraordinary diversity in sexual systems, flowering plants offer unparalleled opportunities to understand sex determination and to reveal generalities in the evolution of sex chromosomes. Comparative genetic mapping of related taxa with good phylogenetic resolution can delineate the extent of sex chromosome diversity within plant groups, and lead the way to understanding the evolutionary drivers of such diversity. The North American octoploid wild strawberries provide such an opportunity. We performed linkage mapping using targeted sequence capture for the subdioecious western Fragaria virginiana ssp. platypetala and compared the location of its sex-determining region (SDR) to those of 2 other (sub)dioecious species, the eastern subspecies, F. virginiana ssp. virginiana (whose SDR is at 0-5.5 Mb on chromosome VI of the B2 subgenome), and the sister species F. chiloensis (whose SDR is at 37 Mb on chromosome VI of the Av subgenome). Male sterility was dominant in F. virginiana ssp. platypetala and mapped to a chromosome also in homeologous group VI. Likewise, one major quantitative trait locus (QTL) for female fertility overlapped the male sterility region. However, the SDR mapped to yet another subgenome (B1), and to a different location (13 Mb), but similar to the location inferred in one population of the naturally occurring hybrid between F. chiloensis and F. virginiana (F. *ananassa ssp. cuneifolia). Phylogenetic analysis of chromosomes across the octoploid taxa showed consistent subgenomic composition reflecting shared evolutionary history but also reinforced within-species variation in the SDR-carrying chromosome, suggesting either repeated evolution, or recent turnovers in SDR. PMID- 29036452 TI - A nonparametric significance test for sampled networks. AB - Motivation: Our work is motivated by an interest in constructing a protein protein interaction network that captures key features associated with Parkinson's disease. While there is an abundance of subnetwork construction methods available, it is often far from obvious which subnetwork is the most suitable starting point for further investigation. Results: We provide a method to assess whether a subnetwork constructed from a seed list (a list of nodes known to be important in the area of interest) differs significantly from a randomly generated subnetwork. The proposed method uses a Monte Carlo approach. As different seed lists can give rise to the same subnetwork, we control for redundancy by constructing a minimal seed list as the starting point for the significance test. The null model is based on random seed lists of the same length as a minimum seed list that generates the subnetwork; in this random seed list the nodes have (approximately) the same degree distribution as the nodes in the minimum seed list. We use this null model to select subnetworks which deviate significantly from random on an appropriate set of statistics and might capture useful information for a real world protein-protein interaction network. Availability and implementation: The software used in this paper are available for download at https://sites.google.com/site/elliottande/. The software is written in Python and uses the NetworkX library. Contact: ande.elliott@gmail.com or felix.reed-tsochas@sbs.ox.ac.uk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036453 TI - Heath Sector Network Governance and State-building in South Kivu, Democratic Republic of Congo. AB - Longstanding patterns of interaction exist between state and non-state actors seeking to improve public health in Democratic Republic of Congo (DRC). DRC is a weak state, and, in many cases, private actors have stepped in to fill the void created by the lack of state health care provision. However, the role of these interactions in creating a governance network in the health sector has been underexplored. Using data from 18 months of qualitative field research, this study aimed to explore governance networks in DRC's health sector, examining how multiple stakeholders work to manage the health system and how the resulting governance network has been relevant for the state-building process. The findings demonstrate that the health sector in South Kivu is emerging as an arena of networked governance based on active partnerships between state institutions and non-state actors. Interactions between state and non-state actors account for the persistence of the health sector in a setting characterized by state weakness. However, networked governance does not function optimally, because, although non state interventions fill the void where the state falls short, the DRC state has faced the challenge of interacting with partners with fragmented and horizontally competing agendas. Although weak, the shadow of state authority is present in the arena of stakeholders' interactions, as the state plays a determining role by providing a regulatory framework. Overall, the findings show that the interactive engagement of non-state actors contributes to improving institutional capacity through these actors' engagement with state institutions for health system management and institutional development. However, although networked health sector governance does contribute to state capacity, it is difficult to assess the real influence of these interactions on the state-building process in a context of critical fragility, where coordination and alignment have been problematic. PMID- 29036455 TI - JLCS medical practice guidelines for thymic tumors: summary of recommendations. AB - The Guideline Committee of the Japan Lung Cancer Society (JLCS) for Thymic Tumors published the Medical Practice Guideline for Thymic Tumors in Japanese as Chapter 3 of the Medical Practice Guidelines for Lung Cancers according to evidence-based medicine in December 2016. This medical practice guideline is the first for thymic epithelial tumors in Japan, and comprises a set of recommendations covering clinical diagnosis, treatment and pathological diagnosis. Thymic epithelial tumors include thymoma, thymic carcinoma and thymic neuroendocrine tumor. The recommendations for clinical diagnosis concern detection of the symptoms, blood and serum tests according to clinical presentation, essential imaging for differential diagnosis and staging, and the necessity and methods of definitive diagnosis. The recommendations for treatment are dependent on tumor stage and recurrence status, and the treatment modalities included surgery, radiation therapy, chemotherapy and multimodality therapy. Those for pathological diagnosis deal with the handing methods of resected specimen and essential reporting contents for pathological diagnosis. Since data from large-scale analyses or clinical studies of thymic epithelial tumor are limited due to its low prevalence, the relevant recommendations and grading were based on available reported evidence and expert opinions as well as diagnostic methods and treatments commonly used in Japan. This report summarizes the recommendations concerning each topic addressed by this JLCS guideline for thymic tumors. PMID- 29036456 TI - Role of free DNA ends and protospacer adjacent motifs for CRISPR DNA uptake in Pyrococcus furiosus. AB - To acquire CRISPR-Cas immunity against invasive mobile genetic elements, prokaryotes must first integrate fragments of foreign DNA into their genomic CRISPR arrays for use in future invader silencing. Here, we found that the hyperthermophilic archaeaon, Pyrococcus furiosus, actively incorporates DNA fragments (spacers) from both plasmid (foreign) and host genome (self) sequences into its seven CRISPR loci. The majority of new spacers were derived from DNA immediately downstream from a 5'-CCN-3' protospacer adjacent motif (PAM) that is critical for invader targeting. Interestingly, spacers were preferentially acquired from genome or plasmid regions corresponding to active transposons, CRISPR loci, ribosomal RNA genes, rolling circle origins of replication, and areas where plasmids recombined with the host chromosome. A common feature of the highly sampled spacers is that they arise from DNA regions expected to undergo DNA nicking and/or double-strand breaks. Taken together with recent results from bacterial systems, our findings indicate that free DNA termini and PAMs are conserved features important for CRISPR spacer uptake in diverse prokaryotes and CRISPR-Cas systems. Moreover, lethal self-targeting by CRISPR systems may contribute to host genome stability by eliminating cells undergoing active transposon mobility or chromosomal uptake of autonomously replicating foreign mobile genetic elements. PMID- 29036454 TI - Mirror and (absence of) counter-mirror responses to action sounds measured with TMS. AB - To what extent is the mirror neuron mechanism malleable to experience? The answer to this question can help characterising its ontogeny and its role in social cognition. Some suggest that it develops through sensorimotor associations congruent with our own actions. Others argue for its extreme volatility that will encode any sensorimotor association in the environment. Here, we added to this debate by exploring the effects of short goal-directed 'mirror' and 'counter mirror' trainings (a 'mirror' training is defined as the first type of training encountered by the participants) on human auditory mirror motor-evoked potentials (MEPs). We recorded MEPs in response to two tones void of previous motor meaning, before and after mirror and counter-mirror trainings in which participants generated two tones of different pitch by performing free-choice button presses. The results showed that mirror MEPs, once established, were protected against an equivalent counter-mirror experience: they became manifest very rapidly and the same number of training trials that lead to the initial association did not suffice to reverse the MEP pattern. This steadiness of the association argues that, by serving direct-matching purposes, the mirror mechanism is a good solution for social cognition. PMID- 29036457 TI - Feasibility evaluation of long-term use of beta-blockers and calcium antagonists in patients with Brugada syndrome. AB - Aims: Beta-blockers (BBs) and calcium antagonists (CAs) are reported to aggravate ST-segment elevation in some patients with Brugada syndrome (BrS). The feasibility of their long-term use in BrS still remains unknown. We investigated the safety of long-term use of BB and CA in BrS patients. Methods and results: Of the 360 consecutive BrS patients, 29 [5: a history of ventricular fibrillation (VF), 17: syncope, 7: asymptomatic] took BB and/or CA (BB: 22, CA: 8) for more than 1 year for the treatment of co-morbidities such as atrial tachyarrhythmia, vasospastic angina, and neurally mediated syncope. The electrocardiographic changes and clinical outcome after the treatment were evaluated. Eleven patients showed type 1 electrocardiogram (ECG) at baseline. BBs and CAs were used within normal dosage range in all patients. After starting a BB and/or CA, type 1 ECG was still observed in 9 patients. There were no significant differences in the ECG parameters such as the amplitude of J-point, QRS duration, and corrected QT intervals before and after starting BB and/or CA. During follow-up of 89 +/- 65 months after initiation of the drugs, 1 patient experienced a VF recurrence without significant changes of ECG parameters 2 years after BB therapy was started. Conclusion: Long-term intake of BB or CA within normal dosage range was not associated with the aggravation of ECG parameters and clinical outcome in patients with BrS. The use of BBs and CAs is acceptable under careful observation. PMID- 29036458 TI - Metabolic Syndrome Induces Over Expression of the Human AT1R: A Haplotype Dependent Effect With Implications on Cardio-Renal Function. AB - BACKGROUND: The transcriptional regulation of the human angiotensin receptor subtype 1 (AT1R) gene in pathophysiologies, like the metabolic syndrome, is poorly understood. The human AT1R gene has polymorphisms in its promoter that can be arranged in 2 haplotypes. Variants -810T, -713T, -214A, and -153A always occur together (Hap-I) and variants -810A, -713G, -214C, and -153G form Hap-II. We have hypothesized that high fat diet will alter cellular transcriptional milieu and increase hAT1R gene expression in a haplotype-dependent manner. This will set up an AT1R-mediated feed-forward loop promoting inflammation, oxidative stress, and hypertension in Hap-I mice. METHOD: Since Hap-I of the human AT1R gene is associated with hypertension in Caucasians, we generated transgenic (TG) mice with Hap-I and Hap-II and studied the physiological significance of high fat diet (HFD) on haplotype specific gene expression. Animals were fed with HFD for 20 weeks followed by blood pressure (BP) analysis and collection of their tissues for molecular and biochemical studies. RESULTS: After HFD treatment, as compared to Hap-II, TG mice with Hap-I show increased expression of hAT1R gene and higher BP; suppression of antioxidant defenses (HO1, SOD1) and increased expression of IL-6, TNFalpha, IL-1beta, NOX1. In vivo ChIP assay has shown that transcription factors CEBPbeta, STAT3, and USF bind more strongly to the chromatin obtained from Hap-I TG mice. CONCLUSIONS: Taken together, our results suggest, that after HFD treatment, as compared to Hap-II, the TG mice with Hap-I overexpress the AT1R gene due to the stronger transcriptional activity, thus resulting in an increase in their BP. PMID- 29036459 TI - The multiple facets of root iron reduction. AB - The biological significance of iron (Fe) is based on its propensity to oscillate between the ferric and ferrous forms, a transition that also affects its phyto availability in soils. With the exception of grasses, Fe3+ is unavailable to plants. Most angiosperms employ a reduction-based Fe uptake mechanism, which relies on enzymatic reduction of ferric iron as an obligatory, rate-limiting step prior to uptake. This system functions optimally in acidic soils. Calcicole plants are, however, exposed to environments that are alkaline and/or have suboptimal availability of phosphorous, conditions under which the enzymatic reduction mechanism ceases to work effectively. We propose that auxiliary, non enzymatic Fe reduction can be of critical importance for conferring fitness to plants thriving in alkaline soils with low bioavailability of Fe and/or phosphorus. PMID- 29036460 TI - RADON EXHALATION FROM SOIL AND ITS DEPENDENCE FROM ENVIRONMENTAL PARAMETERS. AB - An automatic measuring apparatus called exhalometer for measurement of the radon exhalation rate from soil is introduced. It consists of a pneumatic driven accumulation chamber with an open bottom, a PC-based control system, six Lucas cells for radon measurement and sensors for environmental parameters. It allows moving the accumulation chamber and hereby opening or closing it. The exhalation rate is determined through the increase of radon in the accumulation chamber. For studying exhalation and the affecting factors, the exhalometer was placed at an undisturbed meadow for the entire year of 2015. The daily radon exhalation rate ranges from 2.5 to 50.7 Bq m-2 h-1 with an average of 25.3 Bq m-2 h-1. The exhalation rate shows daily and seasonal variations with its maximum in the afternoon and in spring. The dependence on several environmental parameters is discussed. The stable performance indicates the system's fitness for long-term measurements. PMID- 29036461 TI - Mechanisms to protect the privacy of families when using the transmission disequilibrium test in genome-wide association studies. AB - Motivation: Inappropriate disclosure of human genomes may put the privacy of study subjects and of their family members at risk. Existing privacy-preserving mechanisms for Genome-Wide Association Studies (GWAS) mainly focus on protecting individual information in case-control studies. Protecting privacy in family based studies is more difficult. The transmission disequilibrium test (TDT) is a powerful family-based association test employed in many rare disease studies. It gathers information about families (most frequently involving parents, affected children and their siblings). It is important to develop privacy-preserving approaches to disclose TDT statistics with a guarantee that the risk of family 're-identification' stays below a pre-specified risk threshold. 'Re identification' in this context means that an attacker can infer that the presence of a family in a study. Methods: In the context of protecting family level privacy, we developed and evaluated a suite of differentially private (DP) mechanisms for TDT. They include Laplace mechanisms based on the TDT test statistic, P-values, projected P-values and exponential mechanisms based on the TDT test statistic and the shortest Hamming distance (SHD) score. Results: Using simulation studies with a small cohort and a large one, we showed that that the exponential mechanism based on the SHD score preserves the highest utility and privacy among all proposed DP methods. We provide a guideline on applying our DP TDT in a real dataset in analyzing Kawasaki disease with 187 families and 906 SNPs. There are some limitations, including: (1) the performance of our implementation is slow for real-time results generation and (2) handling missing data is still challenging. Availability and implementation: The software dpTDT is available in https://github.com/mwgrassgreen/dpTDT. Contact: mengw1@stanford.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036462 TI - Drought effects on root and needle terpenoid content of a coastal and an interior Douglas fir provenance. AB - Douglas fir (Pseudotsuga menziesii) is a conifer species that stores large amounts of terpenoids, mainly monoterpenoids in resin ducts of various tissues. The effects of drought on stored leaf terpenoid concentrations in trees are scarcely studied and published data are partially controversial, since reduced, unaffected or elevated terpenoid contents due to drought have been reported. Even less is known on the effect of drought on root terpenoids. In the present work, we investigated the effect of reduced water availability on the terpenoid content in roots and needles of Douglas fir seedlings. Two contrasting Douglas fir provenances were studied: an interior provenance (var. glauca) with assumed higher drought resistance, and a coastal provenance (var. menziesii) with assumed lower drought resistance. We tested the hypothesis that both provenances show specific patterns of stored terpenoids and that the patterns will change in response to drought in both, needles and roots. We further expected stronger changes in the less drought tolerant coastal provenance. For this purpose, we performed an experiment under controlled conditions, in which the trees were exposed to moderate and severe drought stress. According to our expectations, the study revealed clear provenance-specific terpenoid patterns in needles. However, such patterns were not detected in the roots. Drought slightly increased the needle terpenoid contents of the coastal but not of the interior provenance. We also observed increased terpenoid abundance mainly in roots of the moderately stressed coastal provenance. Overall, from the observed provenance-specific reactions with increased terpenoid levels in trees of the coastal origin in response to drought, we conclude on functions of terpenoids for abiotic stress tolerance that might be fulfilled by other, constitutively expressed mechanisms in drought-adapted interior provenances. PMID- 29036463 TI - Multiple links between shade avoidance and auxin networks. AB - Auxin has emerged as a key player in the adjustment of plant morphology to the challenge imposed by variable environmental conditions. Shade-avoidance responses, including the promotion of stem and petiole growth, leaf hyponasty, and the inhibition of branching, involve an intimate connection between light and auxin signalling. Low activity of photo-sensory receptors caused by the presence of neighbouring vegetation enhances the activity of PHYTOCHROME INTERACTING FACTORs (PIFs), which directly promote the expression of genes involved in auxin biosynthesis, conjugation, transport, perception, and signalling. In seedlings, neighbour signals increase auxin levels in the foliage, which then moves to the stem, where it reaches epidermal tissues to promote growth. However, this model only partially accounts for shade-avoidance responses (which may also occur in the absence of increased auxin levels), and understanding the whole picture will require further insight into the functional significance of the multiple links between shade and auxin networks. PMID- 29036464 TI - The MIMIC Code Repository: enabling reproducibility in critical care research. AB - Objective: Lack of reproducibility in medical studies is a barrier to the generation of a robust knowledge base to support clinical decision-making. In this paper we outline the Medical Information Mart for Intensive Care (MIMIC) Code Repository, a centralized code base for generating reproducible studies on an openly available critical care dataset. Materials and Methods: Code is provided to load the data into a relational structure, create extractions of the data, and reproduce entire analysis plans including research studies. Results: Concepts extracted include severity of illness scores, comorbid status, administrative definitions of sepsis, physiologic criteria for sepsis, organ failure scores, treatment administration, and more. Executable documents are used for tutorials and reproduce published studies end-to-end, providing a template for future researchers to replicate. The repository's issue tracker enables community discussion about the data and concepts, allowing users to collaboratively improve the resource. Discussion: The centralized repository provides a platform for users of the data to interact directly with the data generators, facilitating greater understanding of the data. It also provides a location for the community to collaborate on necessary concepts for research progress and share them with a larger audience. Consistent application of the same code for underlying concepts is a key step in ensuring that research studies on the MIMIC database are comparable and reproducible. Conclusion: By providing open source code alongside the freely accessible MIMIC-III database, we enable end-to-end reproducible analysis of electronic health records. PMID- 29036465 TI - hnRNPM guides an alternative splicing program in response to inhibition of the PI3K/AKT/mTOR pathway in Ewing sarcoma cells. AB - Ewing sarcomas (ES) are biologically aggressive tumors of bone and soft tissues for which no cure is currently available. Most ES patients do not respond to chemotherapeutic treatments or acquire resistance. Since the PI3K/AKT/mTOR axis is often deregulated in ES, its inhibition offers therapeutic perspective for these aggressive tumors. Herein, by using splicing sensitive arrays, we have uncovered an extensive splicing program activated upon inhibition of the PI3K/AKT/mTOR signaling pathway by BEZ235. Bioinformatics analyses identified hnRNPM as a key factor in this response. HnRNPM motifs were significantly enriched in introns flanking the regulated exons and proximity of binding represented a key determinant for hnRNPM-dependent splicing regulation. Knockdown of hnRNPM expression abolished a subset of BEZ235-induced splicing changes that contained hnRNPM binding sites, enhanced BEZ235 cytotoxicity and limited the clonogenicity of ES cells. Importantly, hnRNPM up-regulation correlates with poor outcome in sarcoma patients. These findings uncover an hnRNPM-dependent alternative splicing program set in motion by inhibition of the mTOR/AKT/PI3K pathway in ES cells that limits therapeutic efficacy of pharmacologic inhibitors, suggesting that combined inhibition of the PI3K/AKT/mTOR pathway and hnRNPM activity may represent a novel approach for ES treatment. PMID- 29036467 TI - SVmine improves structural variation detection by integrative mining of predictions from multiple algorithms. AB - Motivation: Structural variation (SV) is an important class of genomic variations in human genomes. A number of SV detection algorithms based on high-throughput sequencing data have been developed, but they have various and often limited level of sensitivity, specificity and breakpoint resolution. Furthermore, since overlaps between predictions of algorithms are low, SV detection based on multiple algorithms, an often-used strategy in real applications, has little effect in improving the performance of SV detection. Results: We develop a computational tool called SVmine for further mining of SV predictions from multiple tools to improve the performance of SV detection. SVmine refines SV predictions by performing local realignment and assess quality of SV predictions based on likelihoods of the realignments. The local realignment is performed against a set of sequences constructed from the reference sequence near the candidate SV by incorporating nearby single nucleotide variations, insertions and deletions. A sandwich alignment algorithm is further used to improve the accuracy of breakpoint positions. We evaluate SVmine on a set of simulated data and real data and find that SVmine has superior sensitivity, specificity and breakpoint estimation accuracy. We also find that SVmine can significantly improve overlaps of SV predictions from other algorithms. Availability and implementation: SVmine is available at https://github.com/xyc0813/SVmine. Contact: ruibinxi@math.pku.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036466 TI - Insights into Epigenome Evolution from Animal and Plant Methylomes. AB - Evolutionary studies of DNA methylation offer insights into the mechanisms governing the variation of genomic DNA methylation across different species. Comparisons of gross levels of DNA methylation between distantly related species indicate that the size of the genome and the level of genomic DNA methylation are positively correlated. In plant genomes, this can be reliably explained by the genomic contents of repetitive sequences. In animal genomes, the role of repetitivfe sequences on genoimc DNA methylation is less clear. On a shorter timescale, population-level comparisons demonstrate that genetic variation can explain the observed variability of DNA methylation to some degree. The amount of DNA methylation variation that has been attributed to genetic variation in the human population studies so far is substantially lower than that from Arabidopsis population studies, but this disparity might reflect the differences in the computational and experimental techniques used. The effect of genetic variation on DNA methylation has been directly examined in mammalian systems, revealing several causative factors that govern DNA methylation. On the other hand, studies from Arabidopsis have furthered our understanding of spontaneous mutations of DNA methylation, termed "epimutations." Arabidopsis has an extremely high rate of spontaneous epimutations, which may play a major role in shaping the global DNA methylation landscape in this genome. Key missing information includes the frequencies of spontaneous epimutations in other lineages, in particular animal genomes, and how population-level variation of DNA methylation leads to species level differences. PMID- 29036470 TI - Corrigendum to: Evaluating the reliability, validity, acceptability, and practicality of SMS text messaging as a tool to collect research data: results from the Feeding Your Baby project. PMID- 29036468 TI - Exponential propagation of large circular DNA by reconstitution of a chromosome replication cycle. AB - Propagation of genetic information is a fundamental property of living organisms. Escherichia coli has a 4.6 Mb circular chromosome with a replication origin, oriC. While the oriC replication has been reconstituted in vitro more than 30 years ago, continuous repetition of the replication cycle has not yet been achieved. Here, we reconstituted the entire replication cycle with 14 purified enzymes (25 polypeptides) that catalyze initiation at oriC, bidirectional fork progression, Okazaki-fragment maturation and decatenation of the replicated circular products. Because decatenation provides covalently closed supercoiled monomers that are competent for the next round of replication initiation, the replication cycle repeats autonomously and continuously in an isothermal condition. This replication-cycle reaction (RCR) propagates ~10 kb circular DNA exponentially as intact covalently closed molecules, even from a single DNA molecule, with a doubling time of ~8 min and extremely high fidelity. Very large DNA up to 0.2 Mb is successfully propagated within 3 h. We further demonstrate a cell-free cloning in which RCR selectively propagates circular molecules constructed by a multi-fragment assembly reaction. Our results define the minimum element necessary for the repetition of the chromosome-replication cycle, and also provide a powerful in vitro tool to generate large circular DNA molecules without relying on conventional biological cloning. PMID- 29036469 TI - Burn Pain: A Systematic and Critical Review of Epidemiology, Pathophysiology, and Treatment. AB - Objective: This review aims to examine the available literature on the epidemiology, pathophysiology, and treatment of burn-induced pain. Methods: A search was conducted on the epidemiology of burn injury and treatment of burn pain utilizing the database Medline, and all relevant articles were systemically reviewed. In addition, a critical review was performed on the pathophysiology of burn pain and animal models of burn pain. Results: The search on the epidemiology of burn injury yielded a total of 163 publications of interest, 72 of which fit the inclusion/exclusion criteria, with no publications providing epidemiological data on burn injury pain management outcomes. The search on the treatment of burn pain yielded a total of 213 publications, 14 of which fit the inclusion/exclusion criteria, highlighting the limited amount of evidence available on the treatment of burn-induced pain. Conclusions: The pathophysiology of burn pain is poorly understood, with limited clinical trials available to assess the effectiveness of analgesics in burn patients. Further studies are needed to identify new pharmacological targets and treatments for the effective management of burn injury pain. PMID- 29036471 TI - Immunization Completion in Infants Born at Low Birth Weight. AB - Background: Low birth weight (LBW) has been associated with underimmunization. We sought to understand the effect of LBW on immunization completion after controlling for previously hypothesized mediators, including prematurity, neonatal illness, well-child care, non-well-child visits, and provider consistency. Methods: We formed a retrospective cohort of infants born between 2008 and 2011 with >=2 years of military healthcare follow-up. International Classification of Diseases, Ninth Revision codes were used to identify LBW, preterm birth, neonatal illnesses, well-child visits, non-well-child visits, provider consistency, and parental rank in the inpatient and outpatient records. Immunization records were extracted from both records. Logistic regression determined the odds of immunization completion and well-child care completion (ie, having had >=6 WCC visits by 15 months of age). Results: Of 135964 included infants, 116521 (85.7%) were completely immunized at the age of 2 years. In adjusted analysis, the odds of immunization completion were significantly decreased in infants born at LBW (odds ratio [OR], 0.88 [95% confidence interval (CI), 0.79-0.97]), very LBW (OR, 0.61 [95% CI, 0.48-0.77]), or extremely LBW (OR, 0.45 [95% CI, 0.33-0.63]) or at <=32 weeks' gestation (OR, 0.76 [95% CI, 0.63 0.92]), infants with chronic lung disease (OR, 0.63 [95% CI, 0.45-0.88]), male infants (OR, 0.96 [95% CI, 0.93-0.99]), and infants who experienced decreased provider consistency (OR, 0.92 [95% CI, 0.91-0.92]). The rate of immunization completion increased with the overall number of healthcare visits (OR, 1.02 [95% CI, 1.02-1.02]) and complete well-child care (OR, 1.80 [95% CI, 1.75-1.86]). However, children born LBW or preterm were significantly less likely to have complete well-child care. Conclusions: After adjustment for preterm birth, comorbid neonatal conditions, and early childhood patterns of healthcare use, LBW was significantly associated with immunization noncompletion in a universal healthcare system. Provider consistency and well-child care seem important for increasing immunization completion in LBW infants. PMID- 29036473 TI - Calmodulin/CaMKII inhibition improves intercellular communication and impulse propagation in the heart and is antiarrhythmic under conditions when fibrosis is absent. PMID- 29036472 TI - Measurement of nanoscale DNA translocation by uracil DNA glycosylase in human cells. AB - DNA 'sliding' by human repair enzymes is considered to be important for DNA damage detection. Here, we transfected uracil-containing DNA duplexes into human cells and measured the probability that nuclear human uracil DNA glycosylase (hUNG2) excised two uracil lesions spaced 10-80 bp apart in a single encounter without escaping the micro-volume containing the target sites. The two-site transfer probabilities were 100% and 54% at a 10 and 40 bp spacing, but dropped to only 10% at 80 bp. Enzyme trapping experiments suggested that site transfers over 40 bp followed a DNA 'hopping' pathway in human cells, indicating that authentic sliding does not occur even over this short distance. The transfer probabilities were much greater than observed in aqueous buffers, but similar to in vitro measurements in the presence of polymer crowding agents. The findings reveal a new role for the crowded nuclear environment in facilitating DNA damage detection. PMID- 29036476 TI - Migration of an 'injectable' loop recorder in the dorsal pleural cavity. PMID- 29036475 TI - Quantitative Health Risk Assessment of Indoor Radon: A Systematic Review. AB - Exposure to radon is a well-established cause of lung cancer in the general population. The aim of the present work is to identify and summarize the results of studies that have assessed the risk of lung cancer due to indoor radon, based on a systematic review of relevant published studies. Sixteen studies from 12 different countries met eligibility criteria. Large differences in radon concentrations were noted between and within individual countries, and variety of risk models used to estimate the attributable fraction. Calculating again the attributable fraction in each of these studies using the same model (coefficient of 16% per 100 becquerels per cubic meter (Bq/m3) derived from the European residential radon study), the new attributable fraction of these selected studies ranged from 3% to 17%. Radon remains a public health concern. Information about radon health risks is important and efforts are needed to decrease the associated health problems. PMID- 29036474 TI - CASAnova: a multiclass support vector machine model for the classification of human sperm motility patterns. AB - The ability to accurately monitor alterations in sperm motility is paramount to understanding multiple genetic and biochemical perturbations impacting normal fertilization. Computer-aided sperm analysis (CASA) of human sperm typically reports motile percentage and kinematic parameters at the population level, and uses kinematic gating methods to identify subpopulations such as progressive or hyperactivated sperm. The goal of this study was to develop an automated method that classifies all patterns of human sperm motility during in vitro capacitation following the removal of seminal plasma. We visually classified CASA tracks of 2817 sperm from 18 individuals and used a support vector machine-based decision tree to compute four hyperplanes that separate five classes based on their kinematic parameters. We then developed a web-based program, CASAnova, which applies these equations sequentially to assign a single classification to each motile sperm. Vigorous sperm are classified as progressive, intermediate, or hyperactivated, and nonvigorous sperm as slow or weakly motile. This program correctly classifies sperm motility into one of five classes with an overall accuracy of 89.9%. Application of CASAnova to capacitating sperm populations showed a shift from predominantly linear patterns of motility at initial time points to more vigorous patterns, including hyperactivated motility, as capacitation proceeds. Both intermediate and hyperactivated motility patterns were largely eliminated when sperm were incubated in noncapacitating medium, demonstrating the sensitivity of this method. The five CASAnova classifications are distinctive and reflect kinetic parameters of washed human sperm, providing an accurate, quantitative, and high-throughput method for monitoring alterations in motility. PMID- 29036477 TI - A single active site in the mariner transposase cleaves DNA strands of opposite polarity. AB - The RNase H structural fold defines a large family of nucleic acid metabolizing enzymes that catalyze phosphoryl transfer reactions using two divalent metal ions in the active site. Almost all of these reactions involve only one strand of the nucleic acid substrates. In contrast, cut-and-paste transposases cleave two DNA strands of opposite polarity, which is usually achieved via an elegant hairpin mechanism. In the mariner transposons, the hairpin intermediate is absent and key aspects of the mechanism by which the transposon ends are cleaved remained unknown. Here, we characterize complexes involved prior to catalysis, which define an asymmetric pathway for transpososome assembly. Using mixtures of wild type and catalytically inactive transposases, we show that all the catalytic steps of transposition occur within the context of a dimeric transpososome. Crucially, we find that each active site of a transposase dimer is responsible for two hydrolysis and one transesterification reaction at the same transposon end. These results provide the first strong evidence that a DDE/D active site can hydrolyze DNA strands of opposite polarity, a mechanism that has rarely been observed with any type of nuclease. PMID- 29036478 TI - Unraveling the fine-tuned lemon coloration of a pierid butterfly Catopsilia pomona. AB - Butterflies wings possess different types of scales to perform diverse functions. Each scale has many nano and microstructures, which interferes with light, resulting in unique coloration for each butterfly. Besides coloration, the arrangement of scales further helps in giving better survivability. Thus, analysis of wing pattern provides an overall idea about adaptation and activity of the animal. The current study deciphers the structure and composition of a wing of a pierid butterfly Catopsilia pomona, which remains active at 42 degrees C at which temperature all other butterflies face a tougher task for existence. In order to know the relation between survivability and adaptation in the wing, we have investigated the structural and physical composition of the wing of C. pomona under optical spectroscopy (absorption, reflectance and transmittance) along with microscopy techniques (optical and scanning electron microscopy), which are not described in earlier studies. The current findings reveal unique structural arrangement within scales to provide the best fit to the animal in variable temperature. PMID- 29036480 TI - Treatment of obstructive sleep apnoea-hypopnea syndrome by mandible advanced device reduced neuron apoptosis in frontal cortex of rabbits. AB - Objective: To investigate effects of mandible advanced device (MAD) therapy for obstructive sleep apnoea-hypopnea syndrome (OSAHS) on the neuron apoptosis and acetylcholine esterase activity in frontal cortex. Materials and methods: Thirty male New Zealand white rabbits were randomly divided into three groups (n = 10 in each group): group OSAHS, group MAD, and control group. Hydrophilic polyacrylamide gel was injected into soft palate of the animals to induce OSAHS in group OSAHS and group MAD. The group MAD animals wore MAD to relief the obstructiveness. The control group was not given any treatment. Computed tomography (CT) examination of the upper airway and polysomnography (PSG) recordings were performed in supine position. All rabbits were induced to sleep in a supine position for 4 to 6 hours every day and were observed for consecutive 8 weeks. The frontal cortices of three groups were dissected and the neuron apoptosis was detected by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and flow cytometry. Acetylcholine esterase (AchE) activity in the frontal cortex was measured by spectrophotometry. Results: The group OSAHS exhibited high neuron apoptosis rate and low AchE activity than those of group MAD and control group. The blood oxygen saturation was negatively correlated with neuronal apoptosis rate and positively correlated with AchE activity. Applying MAD in OSAHS animals significantly improve the neuronal damage and function deficits by apnoea-hypoxia caused by narrowed upper airway. Conclusion: This study provided evidence that MAD therapy for OSAHS can significantly decrease neuronal apoptosis and increase AchE activity in the frontal cortex. PMID- 29036479 TI - A structural basis for the antibiotic resistance conferred by an N1-methylation of A1408 in 16S rRNA. AB - The aminoglycoside resistance conferred by an N1-methylation of A1408 in 16S rRNA by a novel plasmid-mediated methyltransferase NpmA can be a future health threat. In the present study, we have determined crystal structures of the bacterial ribosomal decoding A site with an A1408m1A antibiotic-resistance mutation both in the presence and absence of aminoglycosides. G418 and paromomycin both possessing a 6'-OH group specifically bind to the mutant A site and disturb its function as a molecular switch in the decoding process. On the other hand, binding of gentamicin with a 6'-NH3+ group to the mutant A site could not be observed in the present crystal structure. These observations agree with the minimum inhibitory concentration of aminoglycosides against Escherichia coli. In addition, one of our crystal structures suggests a possible conformational change of A1408 during the N1-methylation reaction by NpmA. The structural information obtained explains how bacteria acquire resistance against aminoglycosides along with a minimum of fitness cost by the N1-methylation of A1408 and provides novel information for designing the next-generation aminoglycoside. PMID- 29036482 TI - EFFECTIVE DOSE DUE TO TERRESTRIAL GAMMA RADIATION ESTIMATED IN SOUTHERN VIETNAM BY CAR-BORNE SURVEY TECHNIQUE. AB - Absorbed dose rates in air from natural radionuclides were measured by a car borne survey in southern Vietnam. The mean absorbed dose rate in air for southern Vietnam, which consists of the south-east region and the Mekong River Delta region, was 64 +/- 18 nGy h-1, while rates for the two regions were 61 +/- 17 and 66 +/- 19 nGy h-1, respectively. These dose rates were respectively 1.2, 2.1 and 0.9 times the measured values that were calculated on the basis of activity concentrations of soil samples in a previous study. It was considered that measured dose rate in the south-east region was influenced by the presence of artificial structures such as high-rise buildings and roads. The effective dose due to terrestrial gamma radiation for southern Vietnam was calculated to be 0.55 mSv y-1 which is 1.2 times higher than the world-wide average of 0.48 mSv y-1. PMID- 29036481 TI - Identification of the direct regulon of NtcA during early acclimation to nitrogen starvation in the cyanobacterium Synechocystis sp. PCC 6803. AB - In cyanobacteria, nitrogen homeostasis is maintained by an intricate regulatory network around transcription factor NtcA. Although mechanisms controlling NtcA activity appear to be well understood, its regulon remains poorly defined. To determine the NtcA regulon during the early stages of nitrogen starvation for the model cyanobacterium Synechocystis sp. PCC 6803, we performed chromatin immunoprecipitation, followed by sequencing (ChIP-seq), in parallel with transcriptome analysis (RNA-seq). Through combining these methods, we determined 51 genes activated and 28 repressed directly by NtcA. In addition to genes associated with nitrogen and carbon metabolism, a considerable number of genes without current functional annotation were among direct targets providing a rich reservoir for further studies. The NtcA regulon also included eight non-coding RNAs, of which Ncr1071, Syr6 and NsiR7 were experimentally validated, and their putative targets were computationally predicted. Surprisingly, we found substantial NtcA binding associated with delayed expression changes indicating that NtcA can reside in a poised state controlled by other factors. Indeed, a role of PipX as modulating factor in nitrogen regulation was confirmed for selected NtcA-targets. We suggest that the indicated poised state of NtcA enables a more differentiated response to nitrogen limitation and can be advantageous in native habitats of Synechocystis. PMID- 29036483 TI - A Decade of War: Prospective Trajectories of Posttraumatic Stress Disorder Symptoms Among Deployed US Military Personnel and the Influence of Combat Exposure. AB - Posttraumatic stress disorder (PTSD) is a common psychiatric disorder among service members and veterans. The clinical course of PTSD varies between individuals, and patterns of symptom development have yet to be clearly delineated. Previous studies have been limited by convenience sampling, short follow-up periods, and the inability to account for combat-related trauma. To determine the trajectories of PTSD symptoms among deployed military personnel with and without combat exposure, we used data from a population-based representative sample of 8,178 US service members who participated in the Millennium Cohort Study from 2001 to 2011. Using latent growth mixture modeling, trajectories of PTSD symptoms were determined in the total sample, as well as in individuals with and without combat exposure, respectively. Overall, 4 trajectories of PTSD were characterized: resilient, pre-existing, new-onset, and moderate stable. Across all trajectories, combat-deployed service members diverged from non-combat-deployed service members, even after a single deployment. The former also generally had higher PTSD symptoms. Based on the models, nearly 90% of those without combat exposure remained resilient over the 10-year period, compared with 80% of those with combat exposure. Findings demonstrate that although the clinical course of PTSD symptoms shows heterogeneous patterns of development, combat exposure is uniformly associated with poor mental health. PMID- 29036484 TI - Sex Differences in the Association of Diabetes With Cardiovascular Disease Outcomes Among African-American and White Participants in the Atherosclerosis Risk in Communities Study. AB - A sex * diabetes interaction in cardiovascular disease (CVD) has been established among white persons; however, it is unknown whether this interaction occurs among African Americans. We hypothesized that there was a multiplicative sex * diabetes interaction for CVD among African Americans participating in the Atherosclerosis Risk in Communities Study (1987-2013). Race-specific Cox models were run in three stages: Stage 1 examined baseline diabetes status; stage 2 examined baseline diabetes status with the competing risk of non-CVD death; and stage 3 examined time-varying diabetes status with a competing risk of non-CVD death. There were 1,073 incident CVD events among 3,767 African Americans and 2,475 among 10,291 white persons. Among African Americans, in stage 1 analysis, the hazard ratio for women with diabetes was 2.3 (95% confidence interval (CI): 2.0, 2.7) compared with women without diabetes after adjustment for age, and the corresponding hazard ratio for men was 1.8 (95% CI: 1.5, 2.1) (P for interaction = 0.014). After full adjustment, the diabetes hazard ratio was attenuated to 2.0 (95% CI: 1.8, 2.3) among women and remained 1.8 (95% CI: 1.5, 2.1) for men (P for interaction = 0.058). A synergistic influence on CVD risk between being a black woman and having diabetes was consistent across stage 2 and stage 3 analyses, with marginally significant interaction, mirroring sex differences seen in whites. PMID- 29036485 TI - Economic Conditions During Pregnancy and Adverse Birth Outcomes Among Singleton Live Births in the United States, 1990-2013. AB - We know little about the relationship between the macroeconomy and birth outcomes, in part due to the methodological challenge of distinguishing effects of economic conditions on fetal health from effects of economic conditions on selection into live birth. We examined associations between state-level unemployment rates in the first 2 trimesters of pregnancy and adverse birth outcomes, using natality data on singleton live births in the United States during 1990-2013. We used fixed-effect logistic regression models and accounted for selection by adjusting for state-level unemployment before conception and maternal characteristics associated with both selection and birth outcomes. We also tested whether associations between macroeconomic conditions and birth outcomes differed during and after (compared with before) the Great Recession (2007-2009). Each 1-percentage-point increase in the first-trimester unemployment rate was associated with a 5% increase in odds of preterm birth, while second trimester unemployment was associated with a 3% decrease in preterm birth odds. During the Great Recession, however, first-trimester unemployment was associated with a 16% increase in odds of preterm birth. These findings increase our understanding of the effects of the Great Recession on health and add to growing literature suggesting that macro-level social and economic factors contribute to perinatal health. PMID- 29036486 TI - COMPARISON OF PADC NEUTRON DETECTORS FROM DIFFERENT SUPPLIERS. AB - The objective of this study was to compare poly-allyl diglycol carbonate (PADC) track detectors from different suppliers for linear energy transfer (LET) spectrometry and neutron dosimetry. PADCs are commonly used for passive personal neutron dosimetry, where a common approach is to couple the PADC with a plastic radiator to generate secondary charged particles. The neutron dose can be estimated using the track density or the average LET of the secondary particles. The characterisation of PADC in terms of LET spectrometric capability and neutron sensitivity was previously performed using PADC from Intercast S.r.l., Parma, Italy, but this company stopped the production. Since it is common experience that material from different suppliers can have different properties, it became necessary to perform a comparison of PADCs from different suppliers with the Intercast material. The study permits to compare the reading procedures used at Politecnico di Milano and at the Paul Scherrer Institute. PMID- 29036487 TI - Prospective and Retrospective Evaluation of the Performance of the FDA-Approved Cepheid Xpert Flu/RSV XC Assay. AB - Rapid and accurate detection of respiratory viruses is important in patient care and in guiding therapy and infection prevention policy. Rapid viral antigen assays are simple to perform and provide results within 15 to 30 minutes but are limited by their modest-to-moderate sensitivity. Molecular assays are more sensitive and specific but require more technical time and expertise and are more expensive. We verified the performance of the Xpert Flu/RSV XC assay prospectively, using patient respiratory samples from the 2014-2015 respiratory season, and, retrospectively, with frozen patient samples from the previous respiratory season. A total of 60 specimens were assayed on the Xpert Flu/RSV XC assay and by the GenMark Diagnostics eSensor Respiratory Viral Panel. The sensitivity of the Xpert Flu/RSV XC for Flu A was 100% (23/23), for Flu B, 80% (8/10), and for respiratory syncytial virus (RSV), 94.1% (16/17), compared to the reference assay (GenMark). The specificity was 100%. Eight specimens were positive for viruses other than Flu A/B or RSV, and this did not interfere with detection of targets in the Xpert assay. We demonstrated that the performance of the Xpert Flu/RSV XC was comparable to the more comprehensive molecular respiratory assay. PMID- 29036488 TI - Morphological, Physiological and Ultrastructural Changes in Flowers Explain the Spatio-Temporal Emission of Scent Volatiles in Polianthes tuberosa L. AB - Tuberose or Polianthes tuberosa L. is a horticultural crop of tropical origin, widely cultivated for its pleasant and intense floral fragrance in the evening. Here an investigation was made into the physiological and cell biological aspects of floral scent biosynthesis, tissue localization and emission that have not previously been examined. Volatiles collected from floral headspace were analyzed by gas chromatography-mass spectrometry (GC-MS) for identification of individual compounds and elucidation of emission patterns. Transcript accumulation and the amount of active enzyme were measured to understand the enzymatic route of scent volatile biosynthesis. Localization of scent volatiles was investigated by histochemical and ultrastructural studies. Scent emission was found to be rhythmic and nocturnal under normal day-night influence, peaking at night. Enhanced enzyme activities and transcript accumulation were recorded just prior to maximum emission. Through scanning electron microscopy (SEM) analysis, the presence of a large number of floral stomata on the adaxial surface of the tepal was revealed which might have bearing on tissue-specific emission. Guard cells of stomata responded significantly to histochemical tests, which also indicated that epidermal tissues are mostly involved in scent emission. High metabolic activity was found in epidermal layers during anthesis as shown by transmission electron microscopy (TEM) analysis. Further, new insight into the localization of scent compounds, the plausible tissue involved in their release along with the preceding ultrastructural changes at the cellular levels is presented. Finally, ultrastructural analysis of the tepal surface has been able to fill a major gap in knowledge of stomatal involvement during scent emission. PMID- 29036489 TI - Training Community Health Workers to promote breast cancer screening in Brazil. AB - Although it has been show that early detection through mammograms is the most effective way to reduce breast cancer mortality, breast cancer is the leading cause of cancer deaths among women worldwide with survival rates being even lower in low- and middle-income countries as compared to high-income countries. Despite the availability of breast cancer screening programs in Brazil through the public health system, some women do not participate in these programs due to structural and/or inter/intrapersonal barriers. The Community Health Worker (CHW) model is a promising approach to reach these women who have not been reached through other efforts. This paper describes a participatory approach for capacity building of CHWs to promote breast cancer screening among low-income women 50 years of age and older in a southern city in Brazil as a combined effort between two academic institutions, the municipal health care system, and a local non-profit organization. The capacity building program consisted of an 8-hour training focusing on knowledge (e.g., breast cancer and screening) and skills (e.g., communication skills, basic principles of behavior change) to promote breast cancer screening among community members. Pre- and post-test questionnaires assessed changes in breast cancer knowledge and self-perceived knowledge and confidence (N=44). There was a significant increase in objective knowledge regarding breast cancer overall, risk factors, and behavior change strategies between pre- and post-test. There was also a significant increase in self perceived knowledge and confidence, items related to knowledge about breast cancer, breast cancer early detection methods, and the ability to solve problems between pre- and post-test as well as a significant increase in their confidence to motivate women to get a mammogram. Overall, this study demonstrates the importance of welldeveloped capacity building programs to promote breast cancer screening among health care professionals, especially those with limited educational attainment, such as CHWs. PMID- 29036490 TI - Optimizing DNA assembly based on statistical language modelling. AB - By successively assembling genetic parts such as BioBrick according to grammatical models, complex genetic constructs composed of dozens of functional blocks can be built. However, usually every category of genetic parts includes a few or many parts. With increasing quantity of genetic parts, the process of assembling more than a few sets of these parts can be expensive, time consuming and error prone. At the last step of assembling it is somewhat difficult to decide which part should be selected. Based on statistical language model, which is a probability distribution P(s) over strings S that attempts to reflect how frequently a string S occurs as a sentence, the most commonly used parts will be selected. Then, a dynamic programming algorithm was designed to figure out the solution of maximum probability. The algorithm optimizes the results of a genetic design based on a grammatical model and finds an optimal solution. In this way, redundant operations can be reduced and the time and cost required for conducting biological experiments can be minimized. PMID- 29036491 TI - Transcription-Associated Compositional Skews in Drosophila Genes. AB - In many organisms, local deviations from Chargaff's second parity rule are observed around replication and transcription start sites and within intron sequences. Here, we use expression data as well as a whole-genome data set of nearly 200 haplotypes to investigate such compositional skews in Drosophila melanogaster genes. We find a positive correlation between compositional skew and gene expression, comparable in strength to similar correlations between expression levels and genome-wide sequence features. This correlation is relatively stronger for germline, compared with somatic expression, consistent with the process of transcription-associated mutation bias. We also inferred mutation rates from alleles segregating at low frequencies in short introns, and show that, whereas the overall GC content of short introns does not conform to the equilibrium expectation, the level of the observed deviation from the second parity rule is generally consistent with the inferred rates. PMID- 29036492 TI - Partners' Overestimation of Patients' Pain Severity: Relationships with Partners' Interpersonal Responses. AB - Objectives: The present study examined whether concordance between patients' and their partners' reports of patient pain severity relates to partners' social support and behavioral responses in couples coping with chronic pain. Methods: Fifty-two couples completed questionnaires about the patient's pain severity. Both dyad members also rated the partner's social support and negative, solicitous, and distracting responses toward the patient when in pain. Results: Bivariate correlations showed moderate correspondence between patient and partner ratings of pain severity (r = 0.55) and negative (r = 0.46), solicitous (r = 0.47), and distracting responses (r = 0.53), but lower correspondence for social support (r = 0.28). Twenty-eight couples (54%) were concordant in their perceptions of patient pain; partners overestimated pain in 14 couples (27%), and partners underestimated pain in 10 couples (19%). Couple concordance in pain perceptions was not related to patients' reports; however, it significantly predicted partners' reports: Partners who overestimated pain reported giving more social support (beta = 0.383, P = 0.016), fewer negative responses (beta = 0.332, P = 0.029), and more solicitous responses (beta = 0.438, P = 0.016) than partners who were in agreement or who underestimated pain. Discussion: Partner overestimation of pain severity is associated with partner-reported but not with patient-reported support-related responses. This finding has important clinical implications for couple interventions in chronic pain. PMID- 29036493 TI - Predicting Remission in Subjects at Clinical High Risk for Psychosis Using Mismatch Negativity. AB - Background: The declining transition rate to psychotic disorder and the increasing rate of nonpsychotic poor outcomes among subjects at clinical high risk (CHR) for psychosis have increased the need for biomarkers to predict remission regardless of transition. This study investigated whether mismatch negativity (MMN) predicts the prognosis of CHR individuals during a 6-year follow up period. Methods: A total of 47 healthy control (HC) subjects and 48 subjects at CHR for psychosis participated in the MMN assessment. The clinical statuses of the CHR subjects were examined at baseline and regularly for up to 6 years. The CHR subjects were divided into remitter and nonremitter groups, and the baseline MMN amplitudes and latencies were compared across the remitter, nonremitter, and HC groups. Regression analyses were performed to identify the predictive factors of remission, the improvement of attenuated positive symptoms, and functional recovery. Results: CHR nonremitters showed reduced MMN amplitudes at baseline compared to CHR remitters and HC subjects. A logistic regression analysis revealed that the baseline MMN amplitude at the frontal electrode site was the only significant predictor of remission. In a multiple regression analysis, the MMN amplitude, antipsychotic use, and years of education predicted an improvement in attenuated positive symptoms. The MMN amplitude at baseline predicted functional recovery. Conclusions: These results suggest that MMN is a putative predictor of prognosis regardless of the transition to psychotic disorder in subjects at CHR. Early prognosis prediction and the provision of appropriate interventions based on the initial CHR status might be aided using MMN. PMID- 29036494 TI - Transcriptional accuracy modeling suggests two-step proofreading by RNA polymerase. AB - We suggest a novel two-step proofreading mechanism with two sequential rounds of proofreading selection in mRNA transcription. It is based on the previous experimental observations that the proofreading RNA polymerase cleaves off transcript fragments of at least 2 nt and that transcript elongation after a nucleotide misincorporation is anomalously slow. Taking these results into account, we extend the description of the accuracy of template guided nucleotide selection beyond previous models of RNA polymerase-dependent DNA transcription. The model derives the accuracy of initial and proofreading base selection from experimentally estimated nearest-neighbor parameters. It is also used to estimate the small accuracy enhancement of polymerase revisiting of previous positions following transcript cleavage. PMID- 29036495 TI - The p16/miR-217/EGR1 pathway modulates age-related tenogenic differentiation in tendon stem/progenitor cells. AB - Previous studies have shown that the differentiation potential declines with the age of progenitor cells and is linked to altered levels of senescence markers. The purpose of this study was to test whether senescence marker p16 affects age related tenogenic differentiation in tendon stem/progenitor cells (TSPCs). Young and aged TSPCs were isolated from young/healthy and aged/degenerated human Achilles tendons, respectively. Cellular aging and capacity for tenogenic differentiation were examined. The results showed that the tenogenic differentiation capacity of TSPCs significantly decreases with advancing age. TSPCs from elderly donors showed upregulation of senescence-associated beta galactosidase and p16 and concurrently a decrease in Type I collagen concentration and in the expressions of tendon-related markers: Scx, Tnmd, Bgn, Dcn, Col1, and Col3. Overexpression of p16 significantly inhibited tenogenic differentiation of young TSPCs. Analysis of the mechanism revealed that this effect is mediated by microRNA-217 and its target EGR1. These results indicated that p16 inhibits tenogenic differentiation of TSPCs via microRNA signaling pathways, which may serve as a potential target for the prevention or treatment in the future. PMID- 29036496 TI - COMPARISON OF MEASURES ON PROTECTION AGAINST ACCIDENTAL RADIATION AND INDOOR RADON EXPOSURE IN MUSLYUMOVO, TECHA RIVER. AB - The objective of the study was comparison of the doses received due to contamination of the Techa River with those received from the indoor radon exposure. The study was performed on the example of Muslyumovo, the village closest to Mayak nuclear complex. The accidental doses were estimated using data on radionuclide intakes and ICRP-72 dose coefficients, and Techa River Dosimetry System. Radon exposure was estimated applying results of the radon surveys in 1992 and 2015. The doses prevented by means of different protection measures were considered. The maximum reduction of population exposure could be achieved in the case of timely evacuation to uncontaminated territory together with the indoor radon prevention measures. PMID- 29036498 TI - British Widows of the South African War and the Origins of War Widows' Pensions. AB - The South African War of 1899-1902 cost the lives of 22,000 British and colonial soldiers and created almost 5,000 British war widows. It was in this context that the first state pensions for the widows of rank and file soldiers were introduced in 1901. Triggered by unexpectedly high casualty rates and widespread dissatisfaction with charitable provision, the introduction of state pensions also reflected changing public attitudes towards soldiers and their dependants in the context of an imperial war. Dismissed in the historiography as insignificant because of its low rates and restrictive eligibility clauses, the 1901 scheme in fact delivered pensions to the majority of war widows and made the Edwardian state their most important source of financial support. This article, after discussing the social and political context in which widows' pensions were developed, analyses the economics of the scheme and how key eligibility rules were formulated, before investigating significant changes in the scheme to 1920, the point at which Boer War widows were finally granted full maintenance. Strongly influenced by the practices of Victorian armed forces charities and by contemporary ideologies of gender and class, the South African War pension regulations created precedents which would continue to shape pensions for military widows to the end of the twentieth century. PMID- 29036497 TI - Forecasting residue-residue contact prediction accuracy. AB - Motivation: Apart from meta-predictors, most of today's methods for residue residue contact prediction are based entirely on Direct Coupling Analysis (DCA) of correlated mutations in multiple sequence alignments (MSAs). These methods are on average ~40% correct for the 100 strongest predicted contacts in each protein. The end-user who works on a single protein of interest will not know if predictions are either much more or much less correct than 40%, which is especially a problem if contacts are predicted to steer experimental research on that protein. Results: We designed a regression model that forecasts the accuracy of residue-residue contact prediction for individual proteins with an average error of 7 percentage points. Contacts were predicted with two DCA methods (gplmDCA and PSICOV). The models were built on parameters that describe the MSA, the predicted secondary structure, the predicted solvent accessibility and the contact prediction scores for the target protein. Results show that our models can be also applied to the meta-methods, which was tested on RaptorX. Availability and implementation: All data and scripts are available from http://comprec-lin.iiar.pwr.edu.pl/dcaQ/. Contact: malgorzata.kotulska@pwr.edu.pl. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036499 TI - VCF-Explorer: filtering and analysing whole genome VCF files. AB - Summary: The decreasing cost in high-throughput technologies led to a number of sequencing projects consisting of thousands of whole genomes. The paradigm shift from exome to whole genome brings a significant increase in the size of output files. Most of the existing tools which are developed to analyse exome files are not adequate for larger VCF files produced by whole genome studies. In this work we present VCF-Explorer, a variant analysis software capable of handling large files. Memory efficiency and avoiding computationally costly pre-processing step enable to carry out the analysis to be performed with ordinary computers. VCF Explorer provides an easy to use environment where users can define various types of queries based on variant and sample genotype level annotations. VCF-Explorer can be run in different environments and computational platforms ranging from a standard laptop to a high performance server. Availability and implementation: VCF-Explorer is freely available at: http://vcfexplorer.sourceforge.net/. Contact: mete.akgun@tubitak.gov.tr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036501 TI - MULTI-YEAR MONITORING OF RADON IN BOREHOLES AT THE MODRA GEOPHYSICAL OBSERVATORY, SLOVAKIA. AB - Long-term radon monitoring was performed in two boreholes, at a depth of 13 m in the 40 m deep V-2 borehole (August 2003-September 2005), and at 3 m depth in the 10 m deep V-3 borehole (August 2003-April 2008). Diurnal, multi-day and annual variations in radon time-series were observed. Daily average of radon activity in V-2 borehole was significantly higher and ranged from 6.5 to 383.7 kBq/m3, while in V-3 borehole only between 1.2 and 139.4 kBq/m3. The seasonal pattern was more pronounced in V-3 time series, with the maximum occurring from October to March. Multi-day variations (2-10 days) were registered in V-2 and V-3 mostly simultaneously, with higher discrepancy in spring and summer periods, when radon activity in V-3 borehole was low. Diurnal radon variations with two maxima and two minima per day were registered in both boreholes. The influence of meteorological parameters on radon concentrations was investigated. The overall impression is that seasonal variation in radon in V-3 borehole seems to be connected with the temperature variation. Multi-day variations of radon in both boreholes coincided with the atmospheric pressure changes. An increase in radon activity was observed in V-3 borehole after the rainfall in spring and summer seasons. PMID- 29036500 TI - Glioma CpG island methylator phenotype (G-CIMP): biological and clinical implications. AB - Gliomas are a heterogeneous group of brain tumors with distinct biological and clinical properties. Despite advances in surgical techniques and clinical regimens, treatment of high-grade glioma remains challenging and carries dismal rates of therapeutic success and overall survival. Challenges include the molecular complexity of gliomas, as well as inconsistencies in histopathological grading, resulting in an inaccurate prediction of disease progression and failure in the use of standard therapy. The updated 2016 World Health Organization (WHO) classification of tumors of the central nervous system reflects a refinement of tumor diagnostics by integrating the genotypic and phenotypic features, thereby narrowing the defined subgroups. The new classification recommends molecular diagnosis of isocitrate dehydrogenase (IDH) mutational status in gliomas. IDH mutant gliomas manifest the cytosine-phosphate-guanine (CpG) island methylator phenotype (G-CIMP). Notably, the recent identification of clinically relevant subsets of G-CIMP tumors (G-CIMP-high and G-CIMP-low) provides a further refinement in glioma classification that is independent of grade and histology. This scheme may be useful for predicting patient outcome and may be translated into effective therapeutic strategies tailored to each patient. In this review, we highlight the evolution of our understanding of the G-CIMP subsets and how recent advances in characterizing the genome and epigenome of gliomas may influence future basic and translational research. PMID- 29036502 TI - Three Cases of Fatal Acrylfentanyl Toxicity in the United States and a Review of Literature. AB - Fentanyl analogs pose a unique challenge for forensic pathologists and toxicologists. The extreme potency of these analogs results in minute blood, urine and vitreous concentrations that are technically difficult to identify. This in addition to their absence from standard drug screening may potentiate a setting of apparent drug overdose without an immediately identifiable source. The following case series illustrates three such encounters with acrylfentanyl, an analog whose presence has not yet been reported in the scientific literature in the United States. In case 1, a 23-year-old male with a history of heroin abuse was found unresponsive in a field several feet away from his parked vehicle. Drugs and paraphernalia recovered from the vehicle tested positive for methamphetamine and acrylfentanyl. Directed toxicology was requested, revealing acrylfentanyl concentrations of 0.3 ng/mL. In case 2, a 43-year-old male with a history of heroin abuse was found unresponsive in his home after allegedly injecting what he thought to be heroin. Directed toxicology revealed an acrylfentanyl concentration of 0.95 ng/mL in peripheral blood. In case 3, a 26 year-old male with a history of heroin abuse use found unresponsive on the bathroom floor of a grocery store. Drug paraphernalia and a plastic baggy with residue were present. Directed analysis of peripheral blood for fentanyl analogs revealed acrylfentanyl and furanylfentanyl at concentrations of 0.32 and 0.95 ng/mL, respectively. In all three cases, the initial comprehensive blood toxicology did not reveal the presence of acrylfentanyl, highlighting the need for directed testing when scene findings and history suggest a possible substance outside the scope of traditional screening. PMID- 29036503 TI - Implementing electronic health records (EHRs): health care provider perceptions before and after transition from a local basic EHR to a commercial comprehensive EHR. AB - Objective: We assessed changes in the percentage of providers with positive perceptions of electronic health record (EHR) benefit before and after transition from a local basic to a commercial comprehensive EHR. Methods: Changes in the percentage of providers with positive perceptions of EHR benefit were captured via a survey of academic health care providers before (baseline) and at 6-12 months (short term) and 12-24 months (long term) after the transition. We analyzed 32 items for the overall group and by practice setting, provider age, and specialty using separate multivariable-adjusted random effects logistic regression models. Results: A total of 223 providers completed all 3 surveys (30% response rate): 85.6% had outpatient practices, 56.5% were >45 years old, and 23.8% were primary care providers. The percentage of providers with positive perceptions significantly increased from baseline to long-term follow-up for patient communication, hospital transitions - access to clinical information, preventive care delivery, preventive care prompt, preventive lab prompt, satisfaction with system reliability, and sharing medical information (P < .05 for each). The percentage of providers with positive perceptions significantly decreased over time for overall satisfaction, productivity, better patient care, clinical decision quality, easy access to patient information, monitoring patients, more time for patients, coordination of care, computer access, adequate resources, and satisfaction with ease of use (P < 0.05 for each). Results varied by subgroup. Conclusion: After a transition to a commercial comprehensive EHR, items with significant increases and significant decreases in the percentage of providers with positive perceptions of EHR benefit were identified, overall and by subgroup. PMID- 29036504 TI - Echocardiographic Left Ventricular Reverse Remodeling After 18 Months of Antihypertensive Treatment in Stage I Hypertension. Results From the Prever Treatment Study. AB - BACKGROUND: Antihypertensive treatment improves echocardiographic parameters of hypertensive target organ damage in stage II hypertension, but less is known about the effects in stage I hypertension. METHODS: In a cohort study nested in the randomized double-blind trial PREVER-treatment, 2-dimensional echocardiograms were performed in 110 individuals, aged 54.8 +/- 7.9 years-old, with stage I hypertension at baseline and after 18 months of treatment with chlorthalidone/amiloride or losartan. RESULTS: At baseline, 66 (60%) participants had concentric remodeling. After antihypertensive treatment, systolic (SBP) and diastolic blood pressure (BP) were reduced from 141/90 to 130/83 mm Hg (P = 0.009). There was a significant reduction in left ventricular (LV) mass (LVM) index (82.7 +/- 17.1 to 79.2 +/- 17.5 g/m2; P = 0.005) and relative wall thickness (0.45 +/- 0.06 to 0.42 +/- 0.05; P < 0.001), increasing the proportion of participants with normal LV geometry (31% to 49%, P = 0.006). Left atrial (LA) volume index reduced (26.8 +/- 7.3 to 24.9 +/- 6.5 ml/m2; P = 0.001), and mitral E-wave deceleration time increased (230 +/- 46 to 247 +/- 67 ms; P = 0.005), but there was no change in other parameters of diastolic function. LVM reduction was significantly higher in the 2 higher tertiles of SBP reduction compared to the lower tertile. CONCLUSIONS: Treatment of patients with stage I hypertension for 18 months promotes favorable effects in the LA and LV remodeling. This improvement in cardiac end-organ damage might be associated with reduction of long term clinical consequences of hypertensive cardiomyopathy, particularly heart failure with preserved ejection fraction. PMID- 29036505 TI - Increased mortality in haemodialysis patients administered high doses of erythropoiesis-stimulating agents: a propensity score-matched analysis. AB - Background: Erythropoiesis-stimulating agents (ESAs) are widely used to treat anaemia in patients with chronic kidney disease. The issue of ESA safety has been raised in multiple studies, with correlates derived for elevated cancer incidence and mortality. Whether these associations are related to ESA dose or the typology of the patient remains obscure. Methods: A multicentre, observational retrospective propensity score-matched study was designed to analyse the effects of weekly ESA dose in 1679 incident haemodialysis (HD) patients. ESA administration was according to standard medical practice. Patients were grouped as quintiles, according to ESA dose, in order to compare mortality and hospitalization data. Using propensity score matching (PSM), we defined two groups of 324 patients receiving weekly threshold ESA doses of either > or <=8000 IU. Results: Kaplan-Meier survival curves indicated significant increases in the risk of mortality in patients administered with high doses of ESAs (>8127.4 IU/week). Multivariate Cox models identified a high ESA dose as an independent predictor for all-cause and cardiovascular (CV) mortality. Moreover, logistic regression models identified high ESA doses as an independent predictor for all cause, CV and infectious hospitalization. PSM analyses confirmed that weekly ESA doses of >8000 IU constitute an independent predictor of all-cause mortality and hospitalization, even though the adjusted cohort displayed the same demographic features, inflammatory profile, clinical HD parameters and haemoglobin levels. Conclusions: Our data suggest that ESA doses of >8000 IU/week are associated with an increased risk of all-cause mortality and hospitalization in HD patients. PMID- 29036506 TI - Bony changes in Primary Hyperparathyroidism. PMID- 29036507 TI - ggseqlogo: a versatile R package for drawing sequence logos. AB - Summary: Sequence logos have become a crucial visualization method for studying underlying sequence patterns in the genome. Despite this, there remains a scarcity of software packages that provide the versatility often required for such visualizations. ggseqlogo is an R package built on the ggplot2 package that aims to address this issue. ggseqlogo offers native illustration of publication ready DNA, RNA and protein sequence logos in a highly customizable fashion with features including multi-logo plots, qualitative and quantitative colour schemes, annotation of logos and integration with other plots. The package is intuitive to use and seamlessly integrates into R analysis pipelines. Availability and implementation: ggseqlogo is released under the GNU licence and is freely available via CRAN-The Comprehensive R Archive Network https://cran.r project.org/web/packages/ggseqlogo. A detailed tutorial can be found at https://omarwagih.github.io/ggseqlogo. Contact: wagih@ebi.ac.uk. PMID- 29036508 TI - A NOVEL TEPC FOR MICRODOSIMETRY AT NANOMETRIC LEVEL: RESPONSE AGAINST DIFFERENT NEUTRON FIELDS. AB - Tissue equivalent proportional counter (TEPC) is the most accurate device for measuring the microdosimetric properties of a particle beam, nevertheless no detailed information on the track structure of the impinging particles can be obtained, since the lower operation limit of common TEPCs is ~0.3 MUm. On the other hand, the pattern of particle interactions at the nanometer level is measured by only three different nanodosimeters worldwide: practical instruments are not yet available. In order to partially fill the gap between microdosimetry and track-nanodosimetry, a low-pressure avalanche-confinement TEPC was recently designed and constructed for simulating tissue-equivalent sites down to the nanometric region. The present article aims at describing the response of this newly developed TEPC in the range 0.3 MUm-25 nm against a fast neutron field from a 241Am-Be source and a quasi-monoenergetic neutron beam. The experimental results are in good agreement with Monte Carlo simulations carried out with the FLUKA code. PMID- 29036509 TI - Medication usage change in older people (65+) in England over 20 years: findings from CFAS I and CFAS II. AB - Background: medical practice has changed over the last decades reflecting the ageing population, when multi-morbidity requiring multiple medications is more common. Objective: describe and quantify self-reported medicine use including both prescription and over the counter medicines in two comparable population based studies of older people (65+) in England and to assess the nature and scale of polypharmacy. Methods: data used were from two separate population-based studies; the Cognitive Function Ageing Study I and II. Descriptive analyses were performed to summarise and quantify general medicine use. Negative binomial regression models were fitted to determine factors associated with the number of medicines used. Results: medication use, including both prescribed medicines and over the counter products has increased dramatically over the last 2 decades. The number of people taking five or more items quadrupled from 12 to 49%, while the proportion of people who did not take any medication has decreased from around 1 in 5 to 1 in 13. Cardiovascular drugs were the most frequently taken medication. Polypharmacy is associated with increases in the number of diagnosed long-term conditions. Conclusions: comparison between CFAS I and II reveals marked increases in medication usage and polypharmacy in the older population. The influence of healthcare organisation, introduction of new guidelines and technology changes leading to diagnosis of earlier, milder chronic diseases and treatment may be contributing to this changing pattern. Further research is needed to develop practical solutions to optimise medication management in older people, reducing the harming associated with medication. PMID- 29036510 TI - Cancer mortality in residents of the terrain-shielded area exposed to fallout from the Nagasaki atomic bombing. AB - The health effects of radiation exposure from the atomic bomb fallout remain unclear. The objective of the present study is to elucidate the association between low-dose radiation exposure from the atomic bomb fallout and cancer mortality among Nagasaki atomic bomb survivors. Of 77 884 members in the Nagasaki University Atomic Bomb Survivors Cohort, 610 residents in the terrain-shielded area with fallout were selected for this analysis; 1443 residents in the terrain shielded area without fallout were selected as a control group; and 3194 residents in the direct exposure area were also selected for study. Fifty-two deaths due to cancer in the terrain-shielded fallout area were observed during the follow-up period from 1 January 1970 to 31 December 2012. The hazard ratio for cancer mortality in the terrain-shielded fallout area was 0.90 (95% confidence interval: 0.65-1.24). No increase in the risk of cancer mortality was observed, probably because the dose of the radiation exposure was low for residents in the terrain-shielded fallout areas of the Nagasaki atomic bomb, and also because the number of study subjects was small. PMID- 29036511 TI - THE NATIONAL RADON ARCHIVE AS A USEFUL TOOL FOR DEVELOPING AND UPDATING THE NATIONAL RADON ACTION PLAN. AB - International recommendations and regulations require developing of National Radon Action Plans (NRAPs) to effectively manage the protection of workers and population from radon exposure. In Italy, a NRAP was published in 2002 and several activities have been carried out in this framework. Information and data regarding these and previous activities have been collected in a National Radon Archive (NRA). Activities carried out by institutionally involved institutes and agencies include several national and regional surveys, involving more than 50 000 indoor environments (dwellings, schools and workplaces), and remedial actions performed in ~350 buildings, largely in schools. Data collected in the NRA allowed also to estimate that lung cancer deaths attributable to radon exposure in Italy are ~3400 per year. On-going developments of the Italian NRA finalized to effectively use it as tool for developing, monitoring and updating the NRAP are also described. PMID- 29036512 TI - Job resignation after cancer diagnosis among working survivors in Japan: timing, reasons and change of information needs over time. AB - Objective: Despite advances in work-related policies for cancer survivors, support systems for working survivors in healthcare settings in Japan remain underdeveloped. We aimed to reveal (i) the present situation of cancer survivors' job resignation, the timing of resignation, and reasons for resignation; (ii) healthcare providers' screening behaviors of cancer survivors' work-related difficulties and (iii) changes to cancer survivors' information/support needs over time since diagnosis. Methods: We conducted an anonymous, cross-sectional survey using a convenience sample of re-visiting outpatients at three cancer centers in Japan in 2015. The questionnaire covered participants' demographic and clinical characteristics, change to job status, timing of and reasons for job resignation, screening experience regarding work-related difficulties by healthcare providers, and information/support needs at four distinct timings (at diagnosis, between diagnosis and initial treatment, between initial treatment and return-to-work, and after return-to-work). The results of 950 participants were eligible for statistical analysis. Results: Only 23.5% of participants were screened about work-related issues by healthcare providers despite 21.3% participants reporting resigning at least once. Among participants who resigned, 40.2% decided to do so before initial treatment began. Regarding reasons for resignation, self-regulating and pessimistic reasons were ranked highly. Respondents' work-related information and support needs were observed to change over time. While treatment-related information (schedule and cost) was ranked highly at diagnosis, the need for more individually tailored information and support on work increased after treatment began. Conclusions: This study provides important basic data for developing effective support systems for working survivors of cancer in hospital settings. PMID- 29036513 TI - ScanGEO: parallel mining of high-throughput gene expression data. AB - Summary: Current options to mine publicly available gene expression data deposited in NCBI's gene expression omnibus (GEO), such as the GEO web portal and related applications, are optimized to reanalyze a single study, or search for a single gene, and therefore require manual intervention to reanalyze multiple studies for user-specified gene sets. ScanGEO is a simple, user-friendly Shiny web application designed to identify differentially expressed genes across all GEO studies matching user-specified criteria, for a flexible set of genes, visualize results and provide summary statistics and other reports using a single command. Availability and implementation: The ScanGEO source code is written in R and implemented as a Shiny app that can be freely accessed at http://scangeo.dartmouth.edu/ScanGEO/. For users who would like to run a local instantiation of the app, the R source code is available under a GNU GPLv3 license at https://github.com/StantonLabDartmouth/AppScanGEO. Contact: katja.koeppen@dartmouth.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036514 TI - RADON IN WORKPLACES-CZECH APPROACH TO EU BSS IMPLEMENTATION. AB - The European Council Directive 2013/59/Euratom of December 2013 established inter alia the uniform basic safety standards for the health protection of individuals being subject to occupational exposure. In Article 54, a new obligation is introduced-to regulate radon exposure in workplaces. The EU Member States are obliged to set national reference value for radon in workplaces, delineate the areas where the regulation will be applied and determine the concerned types of workplaces. The presented article shows the Czech approach to implementation of this obligation in national legislation and the first design of regulator's control activities to set the obligation in practice. PMID- 29036516 TI - A two-stage approach of gene network analysis for high-dimensional heterogeneous data. AB - Gaussian graphical models have been widely used to construct gene regulatory networks from gene expression data. Most existing methods for Gaussian graphical models are designed to model homogeneous data, assuming a single Gaussian distribution. In practice, however, data may consist of gene expression studies with unknown confounding factors, such as study cohort, microarray platforms, experimental batches, which produce heterogeneous data, and hence lead to false positive edges or low detection power in resulting network, due to those unknown factors. To overcome this problem and improve the performance in constructing gene networks, we propose a two-stage approach to construct a gene network from heterogeneous data. The first stage is to perform a clustering analysis in order to assign samples to a few clusters where the samples in each cluster are approximately homogeneous, and the second stage is to conduct an integrative analysis of networks from each cluster. In particular, we first apply a model based clustering method using the singular value decomposition for high dimensional data, and then integrate the networks from each cluster using the integrative $?psi$-learning method. The proposed method is based on an equivalent measure of partial correlation coefficients in Gaussian graphical models, which is computed with a reduced conditional set and thus it is useful for high dimensional data. We compare the proposed two-stage learning approach with some existing methods in various simulation settings, and demonstrate the robustness of the proposed method. Finally, it is applied to integrate multiple gene expression studies of lung adenocarcinoma to identify potential therapeutic targets and treatment biomarkers. PMID- 29036517 TI - George et al. Respond to "Diabetes and Cardiovascular Disease". PMID- 29036515 TI - The JASMONATE ZIM-Domain Gene Family Mediates JA Signaling and Stress Response in Cotton. AB - JASMONATE ZIM-domain (JAZ) family proteins are involved in regulating diverse biological processes in plants. However, their functions have not been well characterized in cotton (Gossypium spp.). In the present study, 13, 15, 25 and 30 JAZ genes were identified in Gossypium arboretum, Gossypium raimondii, Gossypium barbadense and Gossypium hirsutum, respectively, based on gene homology. Selection and variation analyses showed that the single nucleotide polymorphism (SNP) density of GhJAZ genes in wild species was much higher than that in domesticated species. Expression pattern analysis showed that all the GhJAZ genes are expressed in at least one tissue and respond to one or more stress factors, as well as being induced by some phytohormones. The co-expression network indicated that GhJAZ genes might mediate multiple stress response pathways. Yeast two-hybrid (Y2H) experiments showed extensive interactions among GhJAZ proteins, including homo- and heteromeric interactions. Overexpressing one member of the JAZ gene family, GhJAZ2 (Gh_D06G0810), significantly enhanced sensitivity to salt stress in transgenic cotton. Transcriptome analysis indicated that GhJAZ2 regulates stress responses possibly by participating in alpha-linolenic acid metabolism and jasmonate signaling, and is involved in the repression of GhMYC2 regulated by GhJAZ2. Our data provide important clues for further elucidating the functions of JAZ genes in cotton. PMID- 29036518 TI - Are Prothrombotic Mutations a Time-to-Event Risk Factor? AB - Background: Deep vein thrombosis (DVT) represents a common disorder involving genetic and acquired risk factors. It has been proposed that acquired risk factors are more important with aging than genetic factors, indicating different prevalence of prothrombotic mutations throughout the lifespan. Objective: To determine the role of the most frequent prothrombotic genetic risk factors (Factor V [FV] Leiden and Factor II [FII] G20210A mutations) in first-time DVT etiology in patients of different ages. Method: This retrospective study included 701 patients living in Serbia with diagnosed DVT as a first-time thrombotic event. Results: Risk assessment for mutations as age-related markers showed no statistical difference (FV Leiden mutation-OR, 1.027; 95% confidence interval [CI], .87-1.22; P = .76 and FII G20210A mutation-OR, 0.940, 95% CI, .74-1.19; P = .61). Our results show similar mutation prevalence regardless of how old the patients were at the time of the first DVT occurrence. Conclusion: Our results indicate that these 2 mutations cannot be used as prognostic marker for time-to event first DVT in the Serbian population; however, further studies are required. PMID- 29036521 TI - An interview with Dr John Kerr (Jock) Findlay. PMID- 29036519 TI - Distress, Impairment and the Extended Psychosis Phenotype: A Network Analysis of Psychotic Experiences in an US General Population Sample. AB - It has been proposed that subclinical psychotic experiences (PEs) may causally impact on each other over time and engage with one another in patterns of mutual reinforcement and feedback. This subclinical network of experiences in turn may facilitate the onset of psychotic disorder. PEs, however, are not inherently distressing, nor do they inevitably lead to impairment. The question arises therefore, whether nondistressing PEs, distressing PEs, or both, meaningfully inform an extended psychosis phenotype. The current study first aimed to exploit valuable ordinal data that captured the absence, occurrence and associated impairment of PEs in the general population to construct a general population based severity network of PEs. The study then aimed to partition the available ordinal data into 2 sets of binary data to test whether an occurrence network comprised of PE data denoting absence (coded 0) and occurrence/impairment (coded 1) was comparable to an impairment network comprised of binary PE data denoting absence/occurrence (coded 0) and impairment (coded 1). Networks were constructed using state-of-the-art regularized pairwise Markov Random Fields (PMRF). The severity network revealed strong interconnectivity between PEs and nodes denoting paranoia were among the most central in the network. The binary PMRF impairment network structure was similar to the occurrence network, however, the impairment network was characterized by significantly stronger PE interconnectivity. The findings may help researchers and clinicians to consider and determine how, when, and why an individual might transition from experiences that are nondistressing to experiences that are more commonly characteristic of psychosis symptomology in clinical settings. PMID- 29036522 TI - More Alcohol, More Liver Injury: Not Always True. AB - An animal model of alcoholic liver disease (ALD) that recapitulates human disease is an unmet need. An alcohol-preferring strain and WT mice were fed alcohol by different techniques and with different diet compositions. Interestingly, the greatest alcohol consumers did not develop the worst ALD. This editorial highlights how diet and the gut microbiome/metabolome may influence the development/severity of ALD. PMID- 29036520 TI - From the Cover: Lung-Specific Overexpression of Constitutively Active IKK2 Induces Pulmonary and Systemic Inflammations but Not Hypothalamic Inflammation and Glucose Intolerance. AB - The lung is constantly exposed to ambient pollutants such as ambient fine particulate matter (PM2.5), making it one of the most frequent locations of inflammation in the body. Given the establishment of crucial role of inflammation in the pathogenesis of cardiometabolic diseases, pulmonary inflammation is thus widely believed to be an important risk factor for cardiometabolic diseases. However, the causality between them has not yet been well established. To determine if pulmonary inflammation is sufficient to cause adverse cardiometabolic effects, SFTPC-rtTA+/-tetO-cre+/-pROSA-inhibitor kappaB kinase 2(IKK2)ca+/- (LungIKK2ca) and littermate SFTPC-rtTA+/-tetO-cre-/-pROSA-IKK2ca+/- wildtype (WT) mice were fed with doxycycline diet to induce constitutively active Ikk2 (Ikk2ca) overexpression in the lung and their pulmonary, systemic, adipose, and hypothalamic inflammations, vascular function, and glucose homeostasis were assessed. Feeding with doxycycline diet resulted in IKK2ca overexpression in the lungs of LungIKK2ca but not WT mice. This induction of IKK2ca was accompanied by marked pulmonary inflammation as evidenced by significant increases in bronchoalveolar lavage fluid leukocytes, pulmonary macrophage infiltration, and pulmonary mRNA expression of tumor necrosis factor alpha (Tnfalpha) and interleukin-6 (Il-6). This pulmonary inflammation due to lung-specific overexpression of IKK2ca was sufficient to increase circulating TNFalpha and IL-6 levels, adipose expression of Tnfalpha and Il-6 mRNA, aortic endothelial dysfunction, and systemic insulin resistance. Unexpectedly, no significant alteration in hypothalamic expression of Tnfalpha and Il-6 mRNA and glucose intolerance were observed in these mice. Pulmonary inflammation is sufficient to induce systemic inflammation, endothelial dysfunction, and insulin resistance, but not hypothalamic inflammation and glucose intolerance. PMID- 29036524 TI - PHOTON SPECTRA IN NPL STANDARD RADIONUCLIDE NEUTRON FIELDS. AB - A HPGe detector has been used to measure the photon spectra from the majority of radionuclide neutron sources in use at NPL (252Cf, 241Am-Be, 241Am-Li, 241Am-B). The HPGe was characterised then modelled to produce a response matrix. The measured pulse height spectra were then unfolded to produce photon fluence spectra. Changes in the photon spectrum with time from a 252Cf source are evident. Spectra from a 2-year-old and 42-year-old 252Cf source are presented showing the change from a continuum to peaks from long-lived isotopes of Cf. Other radionuclide neutron source spectra are also presented and discussed. The new spectra were used to improve the photon to neutron dose equivalent ratios from some earlier work at NPL with GM tubes and EPDs. PMID- 29036525 TI - Circulating microRNAs in arrhythmogenic right ventricular cardiomyopathy with ventricular arrhythmia. AB - Aims: MicroRNAs (miRNAs) have been implicated in cardiac diseases. This study aimed to characterize the circulating miRNAs in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) and correlate the miRNAs with the clinical outcomes of ARVC. Methods and results: This study included 62 patients with ventricular arrhythmia (VA): 28 patients (45%) had definite ARVC, 11 (18%) had borderline or possible ARVC, and 23 (37%) had idiopathic ventricular tachycardia (VT). In addition, 33 age- and sex-matched healthy subjects were enrolled as normal control subjects. The expression of selected miRNAs was analysed in all study subjects. The clinical outcomes of patients with definite ARVC after catheter ablation were further investigated. On the basis of the miRNA polymerase chain reaction array, we selected 11 miRNAs for analysis of their expression in the plasma of all subjects. Definite ARVC patients had significantly higher expression of circulating miR-144-3p, 145-5p, 185-5p, and 494 than the three other groups. Out of 25 definite ARVC patients who underwent radiofrequency catheter ablation, recurrent VA occurred in 8 patients (32%) during the follow-up period (45 +/- 20 months). Definite ARVC patients with recurrent VA had a higher level of circulating miR-494 than did those without recurrence. Receiver operating characteristic analysis showed miR-494 to be a predictive factor of recurrent VA (area under the curve: 0.832). Conclusion: Plasma levels of miR-144-3p, 145-5p, 185-5p, and 494 were significantly elevated in definite ARVC patients with VA. An increased plasma level of miR-494 was associated with the recurrence of VA after ablation in definite ARVC patients. PMID- 29036526 TI - DynaPho: a web platform for inferring the dynamics of time-series phosphoproteomics. AB - Summary: Large-scale phosphoproteomics studies have improved our understanding of dynamic cellular signaling, but the downstream analysis of phosphoproteomics data is still a bottleneck. We develop DynaPho, a useful web-based tool providing comprehensive and in-depth analyses of time-course phosphoproteomics data, making analysis intuitive and accessible to non-bioinformatics experts. The tool currently implements five analytic modules, which reveal the transition of biological pathways, kinase activity, dynamics of interaction networks and the predicted kinase-substrate associations. These features can assist users in translating their larger-scale time-course phosphoproteomics data into valuable biological discoveries. Availability and implementation: DynaPho is freely available at http://dynapho.jhlab.tw/ . Contact: hsuancheng@ym.edu.tw or yukijuan@ntu.edu.tw . Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036523 TI - Stress-Dependent Association Between Polygenic Risk for Schizophrenia and Schizotypal Traits in Young Army Recruits. AB - Schizotypal personality traits may increase proneness to psychosis and likely index familial vulnerability to schizophrenia (SZ), implying shared genetic determinants with SZ. Here, we sought to investigate the contribution of common genetic risk variation for SZ on self-reported schizotypy in 2 ethnically homogeneous cohorts of healthy young males during compulsory military service, enrolled in the Athens Study of Proneness and Incidence of Schizophrenia (ASPIS, N = 875) and the Learning on Genetics of Schizophrenia Spectrum study (LOGOS, N = 690). A follow-up psychometric assessment was performed in a sub-sample of the ASPIS (N = 121), 18 months later at military service completion. Polygenic risk scores (PRS) for SZ were derived based on genome-wide association meta-analysis results from the Psychiatric Genomics Consortium. In the ASPIS, higher PRSSZ significantly associated with lower levels of positive (ie, perceptual distortions), disorganization and paranoid facets of schizotypy, whereas no association with negative (ie, interpersonal) facets was noted. Importantly, longitudinal data analysis in the ASPIS subsample revealed that PRSSZ was inversely associated with positive schizotypy at military induction (stressed condition) but not at follow-up (nonstressed condition), providing evidence for environmental rather than SZ-implicated genetic influences. Moreover, consistent with prior reports, PRSSZ was positively correlated with trait anxiety in the LOGOS and additionally the recruits with higher PRSSZ and trait anxiety exhibited attenuated paranoid ideation. Together, these findings do not support an etiological link between increased polygenic liability for SZ and schizotypy, suggesting that psychosocial stress or trait anxiety may impact schizotypal phenotypic expressions among healthy young adults not genetically predisposed to SZ. PMID- 29036527 TI - iSyTE 2.0: a database for expression-based gene discovery in the eye. AB - Although successful in identifying new cataract-linked genes, the previous version of the database iSyTE (integrated Systems Tool for Eye gene discovery) was based on expression information on just three mouse lens stages and was functionally limited to visualization by only UCSC-Genome Browser tracks. To increase its efficacy, here we provide an enhanced iSyTE version 2.0 (URL: http://research.bioinformatics.udel.edu/iSyTE) based on well-curated, comprehensive genome-level lens expression data as a one-stop portal for the effective visualization and analysis of candidate genes in lens development and disease. iSyTE 2.0 includes all publicly available lens Affymetrix and Illumina microarray datasets representing a broad range of embryonic and postnatal stages from wild-type and specific gene-perturbation mouse mutants with eye defects. Further, we developed a new user-friendly web interface for direct access and cogent visualization of the curated expression data, which supports convenient searches and a range of downstream analyses. The utility of these new iSyTE 2.0 features is illustrated through examples of established genes associated with lens development and pathobiology, which serve as tutorials for its application by the end-user. iSyTE 2.0 will facilitate the prioritization of eye development and disease-linked candidate genes in studies involving transcriptomics or next generation sequencing data, linkage analysis and GWAS approaches. PMID- 29036528 TI - Prediction of pathologic responders to neoadjuvant chemoradiotherapy by diffusion weighted magnetic resonance imaging in locally advanced esophageal squamous cell carcinoma: a prospective study. AB - This study aims to investigate the role of diffusion-weighted magnetic resonance imaging (DW-MRI) in ESCC patients receiving neoadjuvant concurrent chemoradiotherapy (CCRT), and the efficacy of apparent diffusion coefficient (ADC) values in predicting pathologic response to neoadjuvant CCRT. Twenty-eight locally advanced ESCC patients treated with neoadjuvant CCRT followed by radical resection were prospectively enrolled. DW-MRI was recommended to be performed within 2 weeks before and 4-6 weeks after neoadjuvant CCRT. The calculated ADCs pre- (ADC1) and post- (ADC2) neoadjuvant CCRT, the definite (DeltaADC) and percentage changes (DeltaADC%) were analyzed for the efficacy of predicting pathologic response to neoadjuvant CCRT. Twenty patients had been identified as responders (tumor regression grade 1-2). Among them, ADC2 (3.02 +/- 0.84 vs. 2.12 +/- 0.44 * 10-3 mm2/s, P = 0.001) and DeltaADC (1.22 +/- 0.78 vs 0.64 +/- 0.26 * 10-3 mm2/s, P = 0.007) were significantly higher than those of nonresponders (tumor regression grade: 3-5). Receiver operating characteristic analysis revealed that ADC2 exhibited an overall accuracy of in 71.4% in predicting pathologic response, with a sensitivity of 60.0%, a specificity of 100%, a positive predictive value of 100%, and a negative predictive value of 50.0%, when 3.04 * 10-3 mm2/s was used as the cutoff value. ADC value could be useful in predicting pathologic response to neoadjuvant CCRT in ESCC patients. High postneoadjuvant CCRT ADC is a predictive indicator for good response. PMID- 29036529 TI - ITSoneDB: a comprehensive collection of eukaryotic ribosomal RNA Internal Transcribed Spacer 1 (ITS1) sequences. AB - A holistic understanding of environmental communities is the new challenge of metagenomics. Accordingly, the amplicon-based or metabarcoding approach, largely applied to investigate bacterial microbiomes, is moving to the eukaryotic world too. Indeed, the analysis of metabarcoding data may provide a comprehensive assessment of both bacterial and eukaryotic composition in a variety of environments, including human body. In this respect, whereas hypervariable regions of the 16S rRNA are the de facto standard barcode for bacteria, the Internal Transcribed Spacer 1 (ITS1) of ribosomal RNA gene cluster has shown a high potential in discriminating eukaryotes at deep taxonomic levels. As metabarcoding data analysis rely on the availability of a well-curated barcode reference resource, a comprehensive collection of ITS1 sequences supplied with robust taxonomies, is highly needed. To address this issue, we created ITSoneDB (available at http://itsonedb.cloud.ba.infn.it/) which in its current version hosts 985 240 ITS1 sequences spanning over 134 000 eukaryotic species. Each ITS1 is mapped on the NCBI reference taxonomy with its start and end positions precisely annotated. ITSoneDB has been developed in agreement to the FAIR guidelines by enabling the users to query and download its content through a simple web-interface and access relevant metadata by cross-linking to European Nucleotide Archive. PMID- 29036530 TI - What does quality maternity care mean in a context of medical pluralism? Perspectives of women in Nigeria. AB - User priorities regarding quality care in contexts of medical pluralism are poorly documented. Drawing on group and individual interviews with women, we interrogate ideas of quality maternity care in the context of Nigeria's medical pluralism. We found complex utilization patterns for conventional, complementary and alternative maternity care services as well as ideas of quality maternity care that stress effective coordination and integration of different typologies of maternity health services; socially sensitive and truthful providers; and socioeconomic, physical and parochial forms of safety. Informal providers were the commonly reported source of maternal health services in the study. Maternal health services in the country were also generally viewed as poor quality, characterized by pervasive abuse, quackery and lack of commitment to the needs and sensitivities of women. Convenience, availability and affordability of maternal health services, as well as sociocultural factors were major influences on women's use of services. Results demonstrate the embeddedness of women's quality of care notions in the vast socioeconomic inequities that typify Nigeria's particular form of poorly regulated medical pluralism, raising need for strategies to strengthen the delivery, coordination and supervision of maternal health services in the country. PMID- 29036531 TI - SPATKIN: a simulator for rule-based modeling of biomolecular site dynamics on surfaces. AB - Summary: Rule-based modeling is a powerful approach for studying biomolecular site dynamics. Here, we present SPATKIN, a general-purpose simulator for rule based modeling in two spatial dimensions. The simulation algorithm is a lattice based method that tracks Brownian motion of individual molecules and the stochastic firing of rule-defined reaction events. Because rules are used as event generators, the algorithm is network-free, meaning that it does not require to generate the complete reaction network implied by rules prior to simulation. In a simulation, each molecule (or complex of molecules) is taken to occupy a single lattice site that cannot be shared with another molecule (or complex). SPATKIN is capable of simulating a wide array of membrane-associated processes, including adsorption, desorption and crowding. Models are specified using an extension of the BioNetGen language, which allows to account for spatial features of the simulated process. Availability and implementation: The C ++ source code for SPATKIN is distributed freely under the terms of the GNU GPLv3 license. The source code can be compiled for execution on popular platforms (Windows, Mac and Linux). An installer for 64-bit Windows and a macOS app are available. The source code and precompiled binaries are available at the SPATKIN Web site (http://pmbm.ippt.pan.pl/software/spatkin). Contact: spatkin.simulator@gmail.com. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036533 TI - gVolante for standardizing completeness assessment of genome and transcriptome assemblies. AB - Motivation: Along with the increasing accessibility to comprehensive sequence information, such as whole genomes and transcriptomes, the demand for assessing their quality has been multiplied. To this end, metrics based on sequence lengths, such as N50, have become a standard, but they only evaluate one aspect of assembly quality. Conversely, analyzing the coverage of pre-selected reference protein-coding genes provides essential content-based quality assessment, but the currently available pipelines for this purpose, CEGMA and BUSCO, do not have a user-friendly interface to serve as a uniform environment for assembly completeness assessment. Results: Here, we introduce a brand-new web server, gVolante, which provides an online tool for (i) on-demand completeness assessment of sequence sets by means of the previously developed pipelines CEGMA and BUSCO and (ii) browsing pre-computed completeness scores for publicly available data in its database section. Completeness assessments performed on gVolante report scores based on not just the coverage of reference genes but also on sequence lengths (e.g. N50 scaffold length), allowing quality control in multiple aspects. Using gVolante, one can compare the quality of original assemblies between their multiple versions (obtained through program choice and parameter tweaking, for example) and evaluate them in comparison to the scores of public resources found in the database section. Availability and implementation: gVoalte is freely available at https://gvolante.riken.jp/. Contact: shigehiro.kuraku@riken.jp. PMID- 29036532 TI - Behavioral pattern separation and its link to the neural mechanisms of fear generalization. AB - Fear generalization is a prominent feature of anxiety disorders and post traumatic stress disorder (PTSD). It is defined as enhanced fear responding to a stimulus that bears similarities, but is not identical to a threatening stimulus. Pattern separation, a hippocampal-dependent process, is critical for stimulus discrimination; it transforms similar experiences or events into non-overlapping representations. This study is the first in humans to investigate the extent to which fear generalization relies on behavioral pattern separation abilities. Participants (N = 46) completed a behavioral task taxing pattern separation, and a neuroimaging fear conditioning and generalization paradigm. Results show an association between lower behavioral pattern separation performance and increased generalization in shock expectancy scores, but not in fear ratings. Furthermore, lower behavioral pattern separation was associated with diminished recruitment of the subcallosal cortex during presentation of generalization stimuli. This region showed functional connectivity with the orbitofrontal cortex and ventromedial prefrontal cortex. Together, the data provide novel experimental evidence that pattern separation is related to generalization of threat expectancies, and reduced fear inhibition processes in frontal regions. Deficient pattern separation may be critical in overgeneralization and therefore may contribute to the pathophysiology of anxiety disorders and PTSD. PMID- 29036534 TI - Constitutive phenolic biomarkers identify naive Quercus agrifolia resistant to Phytophthora ramorum, the causal agent of sudden oak death. AB - Sudden oak death, caused by the invasive pathogen Phytophthora ramorum Werres, de Cock & Man in't Veld, can be deadly for Quercus agrifolia Nee (coast live oak, CLO). However, resistant trees have been observed in natural populations. The objective of this study was to examine if pre-attack (constitutive) levels of phenolic compounds can be used as biomarkers to identify trees likely to be resistant. Naive trees were selected from a natural population and phloem was sampled for analysis of constitutive phenolics. Following P. ramorum inoculation, trees were phenotyped to determine disease susceptibility and constitutive phenolic biomarkers of resistance were identified. Seasonal variation in phloem phenolics was also assessed in a subset of non-inoculated trees. Four biomarkers, including myricitrin and three incompletely characterized flavonoids, together correctly classified 80% of trees. Biomarker levels were then used to predict survival of inoculated CLO and the proportion of resistant trees within a subset of non-inoculated trees from the same population. Levels of five phenolics were significantly affected by season, but with no pronounced variation in average levels among seasons. These results suggest that pre-infection levels of specific phenolic compounds (i.e., biomarkers) can identify trees naturally resistant to this invasive forest pathogen. Knowledge of resistant trees within natural populations may be useful for conserving and breeding resistant trees and for disease management. PMID- 29036535 TI - pLoc-mAnimal: predict subcellular localization of animal proteins with both single and multiple sites. AB - Motivation: Cells are deemed the basic unit of life. However, many important functions of cells as well as their growth and reproduction are performed via the protein molecules located at their different organelles or locations. Facing explosive growth of protein sequences, we are challenged to develop fast and effective method to annotate their subcellular localization. However, this is by no means an easy task. Particularly, mounting evidences have indicated proteins have multi-label feature meaning that they may simultaneously exist at, or move between, two or more different subcellular location sites. Unfortunately, most of the existing computational methods can only be used to deal with the single-label proteins. Although the 'iLoc-Animal' predictor developed recently is quite powerful that can be used to deal with the animal proteins with multiple locations as well, its prediction quality needs to be improved, particularly in enhancing the absolute true rate and reducing the absolute false rate. Results: Here we propose a new predictor called 'pLoc-mAnimal', which is superior to iLoc Animal as shown by the compelling facts. When tested by the most rigorous cross validation on the same high-quality benchmark dataset, the absolute true success rate achieved by the new predictor is 37% higher and the absolute false rate is four times lower in comparison with the state-of-the-art predictor. Availability and implementation: To maximize the convenience of most experimental scientists, a user-friendly web-server for the new predictor has been established at http://www.jci-bioinfo.cn/pLoc-mAnimal/, by which users can easily get their desired results without the need to go through the complicated mathematics involved. Contact: xxiao@gordonlifescience.org or kcchou@gordonlifescience.org. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036536 TI - wft4galaxy: a workflow testing tool for galaxy. AB - Motivation: Workflow managers for scientific analysis provide a high-level programming platform facilitating standardization, automation, collaboration and access to sophisticated computing resources. The Galaxy workflow manager provides a prime example of this type of platform. As compositions of simpler tools, workflows effectively comprise specialized computer programs implementing often very complex analysis procedures. To date, no simple way to automatically test Galaxy workflows and ensure their correctness has appeared in the literature. Results: With wft4galaxy we offer a tool to bring automated testing to Galaxy workflows, making it feasible to bring continuous integration to their development and ensuring that defects are detected promptly. wft4galaxy can be easily installed as a regular Python program or launched directly as a Docker container-the latter reducing installation effort to a minimum. Availability and implementation: Available at https://github.com/phnmnl/wft4galaxy under the Academic Free License v3.0. Contact: marcoenrico.piras@crs4.it. PMID- 29036538 TI - sTLR4/MD-2 complex inhibits colorectal cancer migration and invasiveness in vitro and in vivo by lncRNA H19 down-regulation. AB - Long non-coding RNAs (lncRNAs) have multiple functions in gene regulation and during cellular processes. However, the functional roles of lncRNAs in colorectal cancer (CRC) have not yet been well understood. In our previous study, we demonstrated that sTLR4/MD-2 complex can inhibit CRC in vitro and in vivo by targeting LPS. Therefore, the aim of the present study is to investigate the expression of lncRNA H19 in CRC and to evaluate its effect on the inhibition of sTLR4/MD-2 complex. The expression of H19 is measured in 63 CRC tumor tissues and adjacent normal tissues by quantitative real-time PCR (qRT-PCR). The effects of H19 on migration and invasiveness are evaluated by wound healing assay, migration and invasion assays. Results showed that H19 is significantly overexpressed in cancerous tissues and CRC cell lines compared with adjacent normal tissues and a normal human intestinal epithelial cell line. Moreover, H19 overexpression is closely associated with CRC patients. Our in vitro data indicated that knockdown of H19 inhibits the migration and invasiveness of CRC cells. And in vivo sTLR4/MD 2 complex inhibits tumor growth in mice and the expression of H19 is down regulated. These results suggest that sTLR4/MD-2 complex inhibits CRC migration and invasiveness in vitro and in vivo by lncRNA H19 down-regulation. PMID- 29036537 TI - 2'-Fluoroarabinonucleic acid modification traps G-quadruplex and i-motif structures in human telomeric DNA. AB - Human telomeres and promoter regions of genes fulfill a significant role in cellular aging and cancer. These regions comprise of guanine and cytosine-rich repeats, which under certain conditions can fold into G-quadruplex (G4) and i motif structures, respectively. Herein, we use UV, circular dichroism and NMR spectroscopy to study several human telomeric sequences and demonstrate that G4/i motif-duplex interconversion kinetics are slowed down dramatically by 2'-beta fluorination and the presence of G4/i-motif-duplex junctions. NMR-monitored kinetic experiments on 1:1 mixtures of native and modified C- and G-rich human telomeric sequences reveal that strand hybridization kinetics are controlled by G4 or i-motif unfolding. Furthermore, we provide NMR evidence for the formation of a hybrid complex containing G4 and i-motif structures proximal to a duplex DNA segment at neutral pH. While the presence of i-motif and G4 folds may be mutually exclusive in promoter genome sequences, our results suggest that they may co exist transiently as intermediates in telomeric sequences. PMID- 29036539 TI - Immune cells and autoantibodies in pulmonary arterial hypertension. AB - Analyses of immunity in pulmonary arterial hypertension (PAH) support the notion that maladaptation of the immune response exists. Altered immunity is an increasingly recognized feature of PAH. Indeed, a delicate balance between immunity and tolerance exists and any disturbance may result in chronic inflammation or autoimmunity. This is suggested by infiltration of various immune cells (e.g. macrophages, T and B lymphocytes) in remodeled pulmonary vessels. In addition, several types of autoantibodies directed against antinuclear antigens, endothelial cells (ECs) and fibroblasts have been found in idiopathic and systemic sclerosis-associated PAH. These autoantibodies may play an important role in EC apoptosis and in the expression of cell adhesion molecules. This review article provides an overview of immunity pathways highlighting their potential roles in pulmonary vascular remodeling in PAH and the possibility of future targeted therapy. PMID- 29036540 TI - Tackling anti-microbial resistance: ethical framework for rational antibiotic use. AB - Background: To reduce the effect of antimicrobial resistance and to preserve antibiotic effectiveness, clinical guidelines and health policy documents call for the rational use of antibiotics, which aims to reduce unnecessary or minimally effective antibiotic use. Methods: Through ethical analysis, we show that rational use programmes can lead to ethical conflicts, because they sometimes place patients at risk of harm-for example, a delayed switch to second line antibiotics for community-acquired pneumonia can lead to substantial increases in mortality. Results: Implementing the rational use of antibiotics can lead to conflicts between promoting patients' clinical interests and preserving antibiotic effectiveness for future use. The resulting ethical dilemma for clinicians, patients and policy makers has so far not been adequately addressed. Conclusions: Existing guidance for acceptable risks in clinical research can help to define risk thresholds for the rational use of antibiotics. We develop an ethical framework that allows clinicians and policy-makers to evaluate policies for rational antibiotic use in six practical steps. This framework can help guide clinical practice and health policy. PMID- 29036541 TI - Simple fixed-effects inference for complex functional models. AB - We propose simple inferential approaches for the fixed effects in complex functional mixed effects models. We estimate the fixed effects under the independence of functional residuals assumption and then bootstrap independent units (e.g. subjects) to conduct inference on the fixed effects parameters. Simulations show excellent coverage probability of the confidence intervals and size of tests for the fixed effects model parameters. Methods are motivated by and applied to the Baltimore Longitudinal Study of Aging, though they are applicable to other studies that collect correlated functional data. PMID- 29036543 TI - Pilot-Reported Beta-Blockers Identified by Forensic Toxicology Analysis of Postmortem Specimens. AB - Introduction: This study compared beta-blockers reported by pilots with the medications found by postmortem toxicology analysis of specimens received from fatal aviation accidents between 1999 and 2015. Several studies have compared drugs using the standard approach: Compare the drug found by toxicology analysis with the drug reported by the pilot. This study uniquely examined first the pilot reported medication and then compared it to that detected by toxicology analysis. This study will serve two purposes: (i) to determine the capability of a toxicology laboratory to detect reported medications, and (ii) to identify pilots with medications below detectable limits. Method: All information required for this study was extracted from the Toxicology Data Base system and was searched using ToxFlo or SQL Server Management Studio. The following information was collected and analyzed: pilot-reported trade and/or generic drug, date specimens received, time of accident, type of aviation operations (CFR), state, pilot level, age, class of medical, specimen type, specimen concentration, dose reported, frequency reported associated with the accident, quantity reported, National Transportation Safety Board (NTSB) accident event number, and all NTSB reports. Results: There were 319 pilots that either reported taking a beta blocker or were found to be taking a beta-blocker by postmortem toxicology analysis. Discussion: Time of death, therapeutic concentration and specimen type were found to be factors in the ability of the laboratory to detect beta blockers. Beta-blockers taken by pilots will, in most cases, be found by a competent postmortem forensic toxicology laboratory at therapeutic concentrations. The dose taken by the pilot was not found to be a factor in the ability of the laboratory to identify beta-blockers. Time of dose, route of administration, specimen tested and therapeutic concentration of the drug were found to be factors in the ability of the laboratory to identify beta-blockers in postmortem specimens. PMID- 29036544 TI - Response to the letter from Warren et al. PMID- 29036542 TI - Database Resources of the BIG Data Center in 2018. AB - The BIG Data Center at Beijing Institute of Genomics (BIG) of the Chinese Academy of Sciences provides freely open access to a suite of database resources in support of worldwide research activities in both academia and industry. With the vast amounts of omics data generated at ever-greater scales and rates, the BIG Data Center is continually expanding, updating and enriching its core database resources through big-data integration and value-added curation, including BioCode (a repository archiving bioinformatics tool codes), BioProject (a biological project library), BioSample (a biological sample library), Genome Sequence Archive (GSA, a data repository for archiving raw sequence reads), Genome Warehouse (GWH, a centralized resource housing genome-scale data), Genome Variation Map (GVM, a public repository of genome variations), Gene Expression Nebulas (GEN, a database of gene expression profiles based on RNA-Seq data), Methylation Bank (MethBank, an integrated databank of DNA methylomes), and Science Wikis (a series of biological knowledge wikis for community annotations). In addition, three featured web services are provided, viz., BIG Search (search as a service; a scalable inter-domain text search engine), BIG SSO (single sign on as a service; a user access control system to gain access to multiple independent systems with a single ID and password) and Gsub (submission as a service; a unified submission service for all relevant resources). All of these resources are publicly accessible through the home page of the BIG Data Center at http://bigd.big.ac.cn. PMID- 29036545 TI - Rhizarthrosis in banknote processing workers: a retrospective cohort study. AB - Background: Rhizarthrosis, or osteoarthritis of the base of the thumb, is a common condition affecting 10-30% of the population over the age of 60. Whether it is an occupational disease has been the subject of debate as epidemiological studies on the correlation between physical stress and the presence of rhizarthrosis have shown conflicting results. Aims: To study the correlation between the prevalence of rhizarthrosis and the time spent by employees manually processing banknotes at the National Bank of Belgium (NBB). Methods: We followed NBB employees currently or previously holding job titles involving the manual or automated processing of banknotes. Each participant's job history was carefully reconstructed and the number of months holding certain job titles determined. Each participant was clinically and radiologically examined for the presence of rhizarthrosis in both hands. Its presence was scored by a combination of clinical and radiological criteria. Results: There were 195 participants. The prevalence of rhizarthrosis was 27% in women (mean age: 52.3 +/- 4.4 years) and 17% in men (mean age: 53.2). The odds ratio (OR) for rhizarthrosis after 10 years' full-time overall exposure was significantly higher [OR 10 years: 1.53 (1.03-2.28)]. However, one particular job, 'manual counting', described by participants as highly straining and severely taxing on the thumbs, did not show a significantly higher prevalence of rhizarthrosis. Conclusions: Our study confirmed the correlation between the presence of rhizarthrosis and age, gender and general manual labour, in particular banknote processing, but found no link with one specific job-manual counting. PMID- 29036546 TI - CrocoBLAST: Running BLAST efficiently in the age of next-generation sequencing. AB - Summary: CrocoBLAST is a tool for dramatically speeding up BLAST+ execution on any computer. Alignments that would take days or weeks with NCBI BLAST+ can be run overnight with CrocoBLAST. Additionally, CrocoBLAST provides features critical for NGS data analysis, including: results identical to those of BLAST+; compatibility with any BLAST+ version; real-time information regarding calculation progress and remaining run time; access to partial alignment results; queueing, pausing, and resuming BLAST+ calculations without information loss. Availability and implementation: CrocoBLAST is freely available online, with ample documentation (webchem.ncbr.muni.cz/Platform/App/CrocoBLAST). No installation or user registration is required. CrocoBLAST is implemented in C, while the graphical user interface is implemented in Java. CrocoBLAST is supported under Linux and Windows, and can be run under Mac OS X in a Linux virtual machine. Contact: jkoca@ceitec.cz. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036547 TI - B-Type Natriuretic Peptide and Ventricular Dysfunction in the Prediction of Cardiovascular Events and Death in Hypertension. AB - BACKGROUND: The prevalence and morbidity of hypertension continues to grow globally and improved methods of stratifying risk and identifying organ damage earlier are required. Methods such as echocardiography and population-based risk scores are suggested by guidelines as approaches to aid in risk stratification. However, biomarkers such as natriuretic peptides may help provide such an approach. METHODS: We analyzed data from the screening to prevent heart failure cohort including participants with hypertension with and without a history of a cardiovascular (CV) event at baseline. We investigated the ability of ventricular dysfunction on echocardiography at baseline and of B-type natriuretic peptide (BNP) levels in predicting future major adverse CV events (MACE) and death. We also investigated the use of Systematic COronary Risk Evaluation (SCORE) to predict these events in the uncomplicated cohort. RESULTS: In total, 572 patients (427 with uncomplicated hypertension) were included. Thirty-three patients had MACE or died during follow up. In a univariate analysis, BNP was predictive of MACE and death in all groups. Ventricular dysfunction was not predictive of MACE and death in any group. Both BNP and SCORE had predictive value in this category. However, the magnitude and strength of the continuous association between BNP and events is higher and BNP adds significantly to the predictive value of SCORE as determined by likelihood ratios. The net reclassification improvement for BNP compared to stage B heart failure was 0.20. CONCLUSION: This study demonstrates that in patients with hypertension, BNP is superior to ventricular dysfunction on echocardiography in the prediction of risk of MACE and death in a community-based cohort of patients with complicated and uncomplicated hypertension. PMID- 29036548 TI - Acute Response to a 2-Minute Isometric Exercise Test Predicts the Blood Pressure Lowering Efficacy of Isometric Resistance Training in Young Adults. AB - BACKGROUND: This work aimed to explore whether different forms of a simple isometric exercise test could be used to predict the blood pressure (BP)-lowering efficacy of different types of isometric resistance training (IRT) in healthy young adults. In light of the emphasis on primary prevention of hypertension, identifying those with normal BP who will respond to IRT is important. Also, heightened BP reactivity increases hypertension risk, and as IRT reduces BP reactivity in patients with hypertension, it warrants further investigation in a healthy population. METHODS: Forty-six young men and women (24 +/- 5 years; 116 +/- 10/ 68 +/- 8 mm Hg) were recruited from 2 study sites: Windsor, Canada (n = 26; 13 women), and Northampton, United Kingdom (n = 20; 10 women). Resting BP and BP reactivity to an isometric exercise test were assessed prior to and following 10 weeks of thrice weekly IRT. Canadian participants trained on a handgrip dynamometer (isometric handgrip, IHG), while participants in the UK trained on an isometric leg extension dynamometer (ILE). RESULTS: Men and women enrolled in both interventions demonstrated significant reductions in systolic BP (P < 0.001) and pulse pressure (P < 0.05). Additionally, test-induced systolic BP changes to IHG and ILE tests were associated with IHG and ILE training-induced reductions in systolic BP after 10 weeks of training, respectively (r = 0.58 and r = 0.77; for IHG and ILE; P < 0.05). CONCLUSIONS: The acute BP response to an isometric exercise test appears to be a viable tool to identify individuals who may respond to traditional IRT prescription. PMID- 29036549 TI - Physiological and pathological gestational cardiac hypertrophy: what can we learn from rodents? PMID- 29036550 TI - Perceived Interpersonal Discrimination and Older Women's Mental Health: Accumulation Across Domains, Attributions, and Time. AB - Experiencing discrimination is associated with poor mental health, but how cumulative experiences of perceived interpersonal discrimination across attributes, domains, and time are associated with mental disorders is still unknown. Using data from the Study of Women's Health Across the Nation (1996 2008), we applied latent class analysis and generalized linear models to estimate the association between cumulative exposure to perceived interpersonal discrimination and older women's mental health. We found 4 classes of perceived interpersonal discrimination, ranging from cumulative exposure to discrimination over attributes, domains, and time to none or minimal reports of discrimination. Women who experienced cumulative perceived interpersonal discrimination over time and across attributes and domains had the highest risk of depression (Center for Epidemiologic Studies Depression Scale score >=16) compared with women in all other classes. This was true for all women regardless of race/ethnicity, although the type and severity of perceived discrimination differed across racial/ethnic groups. Cumulative exposure to perceived interpersonal discrimination across attributes, domains, and time has an incremental negative long-term association with mental health. Studies that examine exposure to perceived discrimination due to a single attribute in 1 domain or at 1 point in time underestimate the magnitude and complexity of discrimination and its association with health. PMID- 29036551 TI - Comparative study of the growth and nutritional status of Brazilian and Nigerian school-aged children with sickle cell disease. AB - Background: Comparative studies of patients in different sociogeographic/ecological zones may unravel potential environmental and nutritional factors influencing disease phenotype. In sickle cell disease (SCD), differential access to comprehensive care may influence their growth and nutritional status. Methods: From June 2015 to February 2016, steady-state nutritional parameters of 109 Brazilian and 95 Nigerian children with SCD attending routine clinic visits at Universidade Federal de Sao Paulo, Brazil and Obafemi Awolowo University Teaching Hospital, Ile-Ife (Ilesa unit), respectively, were compared. Results: A relatively high proportion of the children in both centres (23.5%) were wasted [body-mass index (BMI)-for-age z-score<-2). BMI-for age z-score, height-for-age z-score, upper arm fat area and fat percentage were lower in the Nigerian cohorts. More Nigerians, 29.5% (28/95) against 18.3% (20/109) were wasted, and had short stature, [12.6% (12/95) vs. 3.7% (4/109)] than Brazilians. A higher proportion of Brazilian patients were overweight or obese (9.2 vs. 4.3%), and taller for age (15.6 vs. 8.4%). None of the Nigerian patients had severe vitamin D deficiency, only 12.6% (12/95) had suboptimal vitamin D and 1.1% (1/95) had low serum zinc levels, unlike 79.8% (87/109) of the Brazilian patients with suboptimal vitamin D and 10.1% (11/109) with low zinc. Conclusion: Undernutrition is still prevalent among the two cohorts. Nigerian patients were thinner and had reduced linear growth for age. This observation justifies the continued need for specialized nutritional care for children with SCD. In addition to hydroxyurea therapy, research is needed to determine appropriate nutritional intervention and exercise regimens for these children. PMID- 29036552 TI - Using foliar spectral properties to assess the effects of drought on plant water potential. AB - Drought frequency is predicted to increase in future environments. Leaf water potential (PsiLW) is commonly used to evaluate plant water status, but traditional measurements can be logistically difficult and require destructive sampling. We used reflectance spectroscopy to characterize variation in PsiLW of Quercus oleoides Schltdl. & Cham. under differential water availability and tested the ability to predict pre-dawn PsiLW (PDPsiLW) using spectral data collected hours after pressure chamber measurements on dark-acclimated leaves. PsiLW was measured with a Scholander pressure chamber. Leaf reflectance was collected at one or both of two time points: immediately (PsiLW) and ~5 h after pressure chamber measurements (PDPsiLW). Predictive models were constructed using partial least-squares regression. Model performance was evaluated using coefficient of determination (R2), root-mean-square error (RMSE), bias, and the percent RMSE of the data range (%RMSE). PsiLW and PDPsiLW were well predicted using spectroscopic models and successfully estimated a wide variation in PsiLW (light- or dark-acclimated leaves) as well as PDPsiLW (dark-acclimated leaves only). Mean PsiLWR2, RMSE and bias values were 0.65, 0.51 MPa and 0.09, respectively, with a %RMSE between 8% and 20%, while mean PDPsiLWR2, RMSE and bias values were 0.60, 0.44 MPa and 0.01, respectively, with a %RMSE between 9% and 20%. Estimates of PDPsiLW produced similar statistical outcomes when analyzing treatment effects on PDPsiLW as those found using reference pressure chamber measurements. These findings highlight a promising approach to evaluate plant responses to environmental change by providing rapid measurements that can be used to estimate plant water status as well as demonstrating that spectroscopic measurements can be used as a surrogate for standard, reference measurements in a statistical framework. PMID- 29036553 TI - Two-Track Control of Cellular Machinery for Photomovement in Spirogyra varians (Streptophyta, Zygnematales). AB - Plants and freshwater algae devoid of flagella evolved various photomovements to optimize their photosynthetic efficiency. The filaments of Spirogyra varians exhibit complex swaying and undulating movement and form a compact mat which enables them to adjust their light exposure. Photomovement of filament fragments (1-10 cells) was analyzed using various photoreceptor and cytoskeleton inhibitors under monochromatic light. Different patterns of movement were observed under red and blue light. The filaments showed positive phototropism under blue light. Under red light, the filaments bent to undulating shape, but rapidly became unbent by a short exposure to far-red light suggesting the involvement of phytochrome in this movement. The mechanical effector for the red-light response was microtubules; the movement was inhibited effectively by the microtubule inhibitor, oryzalin. The blue-light movement was partially inhibited by the single treatment of either cytochalasin D or oryzalin, but was completely blocked when both chemicals were applied together. Phototropin-signaling inhibitors, wortmannin and LY294002, reversibly inhibited the blue-light movement. Caffeine treatment reversibly stopped the blue-light movement, while the red-light movement was not affected by calcium inhibitors. Our results suggest that the complex photomovement of S. varians is the result of a two-track control of microtubules and microfilaments signaled by the combination of phytochrome and phototropin-like receptors. PMID- 29036554 TI - Contrast venography vs. microwire assisted axillary venipuncture for cardiovascular implantable electronic device implantation. AB - Aims: This study was conducted to compare the safety and efficacy of microwire assisted technique with contrast venography guided axillary venipuncture in patients undergoing cardiovascular implantable electronic device (CIED) implantation. Methods and results: This prospective randomized study included 212 consecutive adult patients undergoing CIED implantation at our institute between 2013 and 2015. Patients were randomized to either venography guided technique (Group I; n = 105) or microwire assisted technique (Group II; n = 107) for axillary venipuncture. In Group I axillary venogram was used as a roadmap for guiding the puncture. In Group II, a 0.014 inch hydrophilic coronary guidewire ('microwire') was introduced through the ipsilateral antecubital vein and puncture needle was aimed to hit the microwire over the first or second rib. Outcome measures including technical success rates; number of attempts to successful puncture; puncture duration; fluoroscopy times and adverse events were compared in the two groups. Overall success rates were similar in both groups (97.4% in Group I and 100% in Group II, P = 0.061). We demonstrated significantly higher first attempt success rates; shorter puncture durations and fluoroscopy times; and lower number of attempts to successful puncture with microwire assisted technique (89.3% vs. 65.6%; 36.7 +/- 23.1 s vs. 67.8 +/- 44.9 s; 62.4 +/ 35.3 s vs. 118.9 +/- 63.2 s; and 1.21 +/- 0.82 vs. 2.16 +/- 1.54 respectively, P < 0.001). Adverse event rates were significantly lower with microwire assisted technique (0.9% vs. 8.6%, P = 0.009). Conclusion: Microwire assisted technique is a simple, quicker, safer and more efficacious alternative to contrast venography guided axillary venipuncture. PMID- 29036555 TI - Cultural capital factors associated with life satisfaction in Korean baby boomers. AB - Background: As aging baby boomers retire, cultural capital is expected to play a major role in representing new types of need for social inclusion for this group of people. This study aims to examine the association between cultural capital and life satisfaction among Korean baby boomers born between 1955 and 1963. Methods: Data on 297 baby boomers were extracted from the 2007 Korean General Social Survey and multiple regression models were tested. Results: The findings indicated that acquired cultural capital (i.e. experiences of private art and culture education and diverse participation in art and cultural activities) had a significant association with a higher level of life satisfaction, whereas inherited cultural capital (i.e. paternal educational level) was not related to life satisfaction among Korean baby boomers. Conclusions: The findings point to the potential benefits of acquired cultural capital as a means to promote the life satisfaction of the baby boom generation. PMID- 29036557 TI - Standardizing biomass reactions and ensuring complete mass balance in genome scale metabolic models. AB - Motivation: In a genome-scale metabolic model, the biomass produced is defined to have a molecular weight (MW) of 1 g mmol-1. This is critical for correctly predicting growth yields, contrasting multiple models and more importantly modeling microbial communities. However, the standard is rarely verified in the current practice and the chemical formulae of biomass components such as proteins, nucleic acids and lipids are often represented by undefined side groups (e.g. X, R). Results: We introduced a systematic procedure for checking the biomass weight and ensuring complete mass balance of a model. We identified significant departures after examining 64 published models. The biomass weights of 34 models differed by 5-50%, while 8 models have discrepancies >50%. In total 20 models were manually curated. By maximizing the original versus corrected biomass reactions, flux balance analysis revealed >10% differences in growth yields for 12 of the curated models. Biomass MW discrepancies are accentuated in microbial community simulations as they can cause significant and systematic errors in the community composition. Microbes with underestimated biomass MWs are overpredicted in the community whereas microbes with overestimated biomass weights are underpredicted. The observed departures in community composition are disproportionately larger than the discrepancies in the biomass weight estimate. We propose the presented procedure as a standard practice for metabolic reconstructions. Availability and implementation: The MALTAB and Python scripts are available in the Supplementary Material. Contact: costas@psu.edu or joshua.chan@connect.polyu.hk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036556 TI - Deficit in PINK1/PARKIN-mediated mitochondrial autophagy at late stages of dystrophic cardiomyopathy. AB - Aims: Duchenne muscular dystrophy (DMD) is an inherited devastating muscle disease with severe and often lethal cardiac complications. Emerging evidence suggests that the evolution of the pathology in DMD is accompanied by the accumulation of mitochondria with defective structure and function. Here, we investigate whether defects in the housekeeping autophagic pathway contribute to mitochondrial and metabolic dysfunctions in dystrophic cardiomyopathy. Methods and results: We employed various biochemical and imaging techniques to assess mitochondrial structure and function as well as to evaluate autophagy, and specific mitochondrial autophagy (mitophagy), in hearts of mdx mice, an animal model of DMD. Our results indicate substantial structural damage of mitochondria and a significant decrease in ATP production in hearts of mdx animals, which developed cardiomyopathy. In these hearts, we also detected enhanced autophagy but paradoxically, mitophagy appeared to be suppressed. In addition, we found decreased levels of several proteins involved in the PINK1/PARKIN mitophagy pathway as well as an insignificant amount of PARKIN protein phosphorylation at the S65 residue upon induction of mitophagy. Conclusions: Our results suggest faulty mitophagy in dystrophic hearts due to defects in the PINK1/PARKIN pathway. PMID- 29036558 TI - MethRaFo: MeDIP-seq methylation estimate using a Random Forest Regressor. AB - Motivation: Profiling of genome wide DNA methylation is now routinely performed when studying development, cancer and several other biological processes. Although Whole genome Bisulfite Sequencing provides high-quality methylation measurements at the resolution of nucleotides, it is relatively costly and so several studies have used alternative methods for such profiling. One of the most widely used low cost alternatives is MeDIP-Seq. However, MeDIP-Seq is biased for CpG enriched regions and thus its results need to be corrected in order to determine accurate methylation levels. Results: Here we present a method for correcting MeDIP-Seq results based on Random Forest regression. Applying the method to real data from several different tissues (brain, cortex, penis) we show that it achieves almost 4 fold decrease in run time while increasing accuracy by as much as 20% over prior methods developed for this task. Availability and implementation: MethRaFo is freely available as a python package (with a R wrapper) at https://github.com/phoenixding/methrafo. Contact: zivbj@cs.cmu.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036559 TI - The brisk-standing-test for long QT syndrome in prepubertal school children: defining normal. AB - Aims: Long QT syndrome (LQTS) is associated with malignant arrhythmias and sudden death from birth to advanced age. Prolongation of the QT-interval, may however be concealed on standard electrocardiograms (ECG). The brisk-standing-test (BST) was developed to guide LQTS-diagnosis and treatment in adults. We hypothesized that the BST may be used in prepubertal children to identify LQTS subjects. Accordingly, reference values for the BST should be available to prevent incorrect diagnosis and treatment of LQTS. In this study, we aim to present reference values for prepubertal children. Methods and results: Healthy, prepubertal children, aged 7-13 years underwent a standard supine resting ECG and during continuous ECG recording performed a BST. The QT-interval and heart rate corrected QTc were measured during the different BST stages. Fifty-seven children, 29 boys (10.2 +/- 1.1 years) and 28 girls (9.9 +/- 1.1 years) were included. Baseline characteristics and response to standing were not statistically different for boys and girls: mean supine pre-standing heart rate 74 +/- 9 vs. 77 +/- 9 bpm, supine pre-standing QTc 406 +/- 27 vs. 407 +/- 17 ms, maximal heart rate upon standing 109 +/- 11 vs. 112 +/- 11 bpm, and QTc at maximal heart rate 484 +/- 29 vs. 487 +/- 35 ms. The QT interval corrected for heart rate-prolongation at maximal tachycardia after standing was 79 +/- 26 (19 144) ms, which is significantly longer than previously published values in adults (50+/- 30 ms). Conclusions: The QT interval corrected for heart rate prolongation after brisk standing in healthy prepubertal children is more pronounced than in healthy adults. This finding advocates distinct prepubertal cut-off values because using adult values for prepubertal children would yield false positive results with the risk of incorrect LQTS-diagnosis and overtreatment. PMID- 29036560 TI - Wound haematoma following defibrillator implantation: incidence and predictors in the Shockless Implant Evaluation (SIMPLE) trial: comment. PMID- 29036561 TI - Acrokeratosis paraneoplastica (Bazex syndrome). PMID- 29036562 TI - nandb-number and brightness in R with a novel automatic detrending algorithm. AB - Summary: An R package for performing number and brightness image analysis, with the implementation of a novel automatic detrending algorithm. Availability and implementation: Available at https://github.com/rorynolan/nandb for all platforms. Contact: rnolan@well.ox.ac.uk or spadilla@well.ox.ac.uk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036563 TI - Loss of CD15 expression in clear cell renal cell carcinoma is correlated with worse prognosis in Chinese patients. AB - Purpose: To explore the role of CD15 expression in the prognosis of clear cell renal cell carcinoma (ccRCC) in Chinese patients. Methods: The study included 301 patients who had undergone surgery for localized ccRCC. All paraffin-embedded tumor sections were collected to make a set of tissue microarrays. CD15 expression was assessed by immunohistochemistry. The relationship between CD15 expression and survival parameters, clinicopathology features was assessed. Kaplan-Meier and Cox proportional hazards model were utilized to determine the correlation between CD15 expression and overall survival (OS). Results: The median follow-up time was 54.6 months (range, 3-121 months). The positive rate of CD15 expression was 81.7% (246/301). The cut-off value of CD15 expression was defined as the maximum for Youden index by plotting the receiver operating characteristic curve for survival status. As the threshold was 0.5, all cases were divided into two groups: positive expression group and negative expression group. In correlation analysis, loss of CD15 expression was correlated with female gender, higher Fuhrman nuclear grade, with sarcomatoid differentiation, with necrosis, and with vascular invasion. Kaplan-Meier analysis indicated that the OS time of patients with loss of CD15 expression was shorter than that of patients with positive CD15 expression (P = 0.013). Conclusion: CD15 is a significant prognostic factor in clear cell renal cell carcinoma. PMID- 29036564 TI - Elabela-APJ axis: a novel therapy target for cardiovascular diseases. PMID- 29036565 TI - Long-Term Risk of Acute Myocardial Infarction, Stroke, and Death With Outpatient Use of Clarithromycin: A Retrospective Cohort Study. AB - In a retrospective cohort study of patients enrolled in the UK Clinical Practice Research Datalink during 2000-2013, we evaluated long-term risks of death, stroke, and acute myocardial infarction (AMI) in adults prescribed clarithromycin. Patients were outpatients aged 40-85 years, who were prescribed clarithromycin (n = 287,748), doxycycline (n = 267,729), or erythromycin (n = 442,999), or Helicobacter pylori eradication therapy with a proton pump inhibitor, amoxicillin, and either clarithromycin (n = 27,639) or metronidazole (n = 14,863). We analyzed time to death, stroke, or AMI with Cox proportional hazards regression. The long-term hazard ratio for death following 1 clarithromycin versus 1 doxycycline prescription was 1.29 (95% confidence interval (CI): 1.21, 1.25), increasing to 1.62 (95% CI: 1.43, 1.84) for >=5 prescriptions of clarithromycin versus >=5 prescriptions for doxycycline. Erythromycin showed smaller risks in comparison with doxycycline. Stroke and AMI incidences were also increased after clarithromycin but with smaller hazard ratios than for mortality. For H. pylori eradication, the hazard ratio for mortality following clarithromycin versus metronidazole regimens was 1.09 (95% CI: 1.00, 1.18) overall, and it was higher (hazard ratio = 1.65, 95% CI: 0.88, 3.08) following >=2 prescriptions in subjects not on statins at baseline. Outpatient clarithromycin use was associated with long-term mortality increases, with evidence for a similar, smaller increase with erythromycin. PMID- 29036567 TI - Extra-pituitary expressed follicle-stimulating hormone: Is it physiologically important? AB - Pituitary gonadotropes synthesize and secrete follicle-stimulating hormone (FSH). FSH is a heterodimer that consists of an alpha- and beta-subunit. The alpha subunit is common to other pituitary and placental glycoprotein hormones, and the beta-subunit is the hormone/receptor-specific subunit. Although the pituitary is the main tissue that accounts for circulating hormone, previous and recent reports indicate extra-pituitary sources of FSH production including mouse gonads, human stomach, prostate, umbilical cord vein endothelial cells, uterine myometrium, placenta, and chicken abdominal adipose tissue. Whether extra pituitary derived FSH exerts any physiologically significant actions is not known. In this review, we have comprehensively analyzed the expression of mRNAs that encode mouse and human FSH subunits and also their corresponding expressed sequence tags in normal tissues, cancer cell lines, and primary tumors by public database mining. We propose criteria to assess the significance of individual FSH subunit or FSH dimer expression as well as genetic approaches to unambiguously define the physiological relevance of extra-pituitary FSH expression. PMID- 29036568 TI - Rhetoric of representation: the disempowerment and empowerment of consumer leaders. AB - Policy mandates consumer involvement in decisions at all levels of the mental health system. One barrier to this involvement is the expectation that consumers involved in systemic work represent broader consumer experiences. To examine how the rhetoric of 'representation' was used in relation to consumer involvement in mental health, a qualitative exploratory design was employed using interviews for data collection. Participants were consumers (n = 6) working with public or private mental health organizations in Australia, and colleagues (n = 3) or managers (n = 5) of these consumers. Discursive psychological principles informed the analytic process, to explore contexts in which 'representativeness' was used to empower and disempower consumers. The findings suggest there is a lack of clarity about what is meant by representation in the mental health sector. Expecting individual consumer leaders to be representative of consumer views more broadly disempowered them in their roles. Some participants instead discussed ways that organizations should be responsible for seeking representation from more consumer leaders, thus empowering consumers working in the sector. Using the term 'representative' to refer to consumers working in mental health does not reflect the value of the consumer perspective and is not well understood within the sector. Comprehensive training should be provided so that mental health service providers are clear regarding the expectations of people in these roles. PMID- 29036566 TI - The Role of Alternative Splicing and Differential Gene Expression in Cichlid Adaptive Radiation. AB - Species diverge eco-morphologically through the continuous action of natural selection on functionally important structures, producing alternative adaptive morphologies. In cichlid fishes, the oral and pharyngeal jaws are such key structures. Adaptive variation in jaw morphology contributes to trophic specialization, which is hypothesized to fuel their rapid speciation in the East African Great Lakes. Much is known about the genes involved in cichlid jaw and craniofacial development. However, it is still unclear what salient sources of variation gave rise to trophic-niche specialization, facilitating adaptive radiation. Here, we explore two sources of transcriptional variation that may underlie species-specific disparities in jaw morphology. Using whole transcriptome RNA-sequencing, we analyze differences in gene expression and alternative splicing, at the end of postlarval development, in fully functional jaws of six species of cichlids from the Lake Tanganyika tribe Tropheini. Our data reveal a surprisingly high degree of alternative splicing events compared with gene expression differences among species and trophic types. This suggests that differential trophic adaptation of the jaw apparatus may have been shaped by transcriptional rewiring of splicing as well as gene expression variation during the rapid radiation of the Tropheini. Specifically, genes undergoing splicing across most species were found to be enriched for pharyngeal jaw gene ontology terms. Overall, jaw transcriptional patterns at postlarval developmental stage were highly dynamic and species-specific. In conclusion, this work indicates that shifts in alternative splicing could have played a more important role in cichlid adaptive radiation, and possibly adaptive radiation in general, than currently recognized. PMID- 29036570 TI - Radon in the Exhaled Air of Patients in Radon Therapy. AB - In the Gastein valley, numerous facilities use radon for the treatment of various diseases either by exposure to radon in air or in radon rich thermal water. In this study, six test persons were exposed to radon thermal water in a bathtub and the time-dependent radon activity concentration in the exhaled air was recorded. At temperatures between 38 degrees C and 40 degrees C, the radon activity concentration in the water was about 900 kBq/m3 in a total volume of 600 l, where the patients were exposed for 20 min, while continuously sampling the exhaled air during the bathing and 20 min thereafter. After entering the bath, the exhaled radon activity concentration rapidly increased, reaching some kind of saturation after 20 min exposure. The radon activity concentration in the exhaled air was about 8000 Bq/m3 at the maximum, with higher concentrations for male test persons. The total radon transfer from water to the exhaled air was between 480 and 1000 Bq, which is equivalent to 0.08% and 0.2% of the radon in the water. PMID- 29036569 TI - Opportunities for Epidemiologists in Implementation Science: A Primer. AB - The field of epidemiology has been defined as the study of the spread and control of disease. However, epidemiology frequently focuses on studies of etiology and distribution of disease at the cost of understanding the best ways to control disease. Moreover, only a small fraction of scientific discoveries are translated into public health practice, and the process from discovery to translation is exceedingly slow. Given the importance of translational science, the future of epidemiologic training should include competency in implementation science, whose goal is to rapidly move evidence into practice. Our purpose in this paper is to provide epidemiologists with a primer in implementation science, which includes dissemination research and implementation research as defined by the National Institutes of Health. We describe the basic principles of implementation science, highlight key components for conducting research, provide examples of implementation studies that encompass epidemiology, and offer resources and opportunities for continued learning. There is a clear need for greater speed, relevance, and application of evidence into practice, programs, and policies and an opportunity to enable epidemiologists to conduct research that not only will inform practitioners and policy-makers of risk but also will enhance the likelihood that evidence will be implemented. PMID- 29036571 TI - Atrial flow dynamics as a determinant of tissue temperature during balloon cryoablation. AB - Aims: Balloon cryoablation is an accepted method of achieving pulmonary vein isolation for the treatment of atrial fibrillation. The relationship between blood flow in the atrium and cryo energy delivery to the tissue remains poorly understood. Methods and results: Controlled cryoablations were performed in vitro using a pulmonary vein phantom constructed from bovine muscle, providing a 20 mm vein ostium. A temperature sensor was mounted within the 'vein wall' at a 1 mm tissue depth. Apparatus was constructed to assess the effect of incomplete pulmonary venous occlusion causing a leak, simulated atrial stasis, atrial circulation, and mitral regurgitation. Controlled ablations using the 2nd generation 28 mm cryoballoon catheter were repeated three times and mean values compared. Leak volume significantly affected both balloon temperatures and tissue temperatures. Simulated mitral regurgitation (MR) significantly impaired the effectiveness of cryo energy delivery resulting in significantly warmer balloon and tissue temperatures. With high leak volumes and moderate to severe MR there was a marked disparity between the cryoballoon temperature and the tissue temperature of approximately 60 degrees. Balloon warming times varied inversely with both leak volume and simulated MR flow volume. Conclusion: Incomplete venous occlusion and MR result in warmer balloon and tissue temperatures, and shorter balloon warming times, and are likely to significantly impair the effectiveness of cryoablation. Balloon temperature is poor indicator of tissue temperature under higher flow conditions. PMID- 29036572 TI - DOSE EFFECT OF THE 33S(n,alpha) 30SI REACTION IN BNCT USING THE NEW n_TOF-CERN DATA. AB - 33S is a stable isotope of sulphur which is being studied as a potential cooperative target for Boron Neutron Capture Therapy (BNCT) in accelerator-based neutron sources because of its large (n,alpha) cross section in the epithermal neutron energy range. Previous measurements resolved the resonances with a discrepant description of the lowest-lying and strongest one (at 13.5 keV). However, the evaluations of the major databases do not include resonances, except EAF-2010 which shows smaller values in this range than the experimental data. Furthermore, the glaring lack of data below 10 keV down to thermal (25.3 meV) has motivated a new measurement at n_TOF at CERN in order to cover the whole energy range. The inclusion of this new 33S(n,alpha) cross section in Monte Carlo simulations provides a more accurate estimation of the deposited kerma rate in tissue due to the presence of 33S. The results of those simulations represent the goal of this work. PMID- 29036573 TI - ComplexViewer: visualization of curated macromolecular complexes. AB - Summary: Proteins frequently function as parts of complexes, assemblages of multiple proteins and other biomolecules, yet network visualizations usually only show proteins as parts of binary interactions. ComplexViewer visualizes interactions with more than two participants and thereby avoids the need to first expand these into multiple binary interactions. Furthermore, if binding regions between molecules are known then these can be displayed in the context of the larger complex. Availability and implementation: freely available under Apache version 2 license; EMBL-EBI Complex Portal: http://www.ebi.ac.uk/complexportal; Source code: https://github.com/MICommunity/ComplexViewer; Package: https://www.npmjs.com/package/complexviewer; http://biojs.io/d/complexviewer. Language: JavaScript; Web technology: Scalable Vector Graphics; Libraries: D3.js. Contact: colin.combe@ed.ac.uk or juri.rappsilber@ed.ac.uk. PMID- 29036574 TI - Differential Expression of Hypertensive Phenotypes in BXD Mouse Strains in Response to Angiotensin II. AB - BACKGROUND: Besides environmental risk factors, genetic factors play a crucial role in the pathogenesis of primary hypertension. The current study is to unravel whether hypertensive phenotypes vary in mice with different genetic background. METHODS: Hypertension was induced in C57BL/6J (B6), DBA/2J (D2), and 25 BXD strains by administrating angiotensin (Ang)II (2.5 mg/kg/day infused by osmotic minipump) for 4 weeks. Systolic blood pressure was monitored before (baseline) and after 4 weeks of AngII treatment by tail cuff. Cardiac and renal fibrosis was evaluated by picrosirius red staining and collagen volume fraction (CVF) was quantitated using imaging analyzing system; cardiac transforming growth factor (TGF)-beta gene expression was monitored by RT-PCR, and inflammatory response was detected by immunohistochemical ED-1 staining. RESULTS: AngII infusion caused hypertension in all strains. However, blood pressure elevation was more evident in the D2 strain than the B6 group, while it was widely variable among BXD strains. Furthermore, chronic AngII treatment lead to development of hypertensive cardiac and renal diseases. Cardiac and renal CVF levels in the D2 strain was significantly higher than the B6 cohort, whereas these varied vastly across BXD strains. Moreover, cardiac TGF-beta mRNA levels were markedly diverse among various mouse strains. CONCLUSION: Our study unequivocally demonstrates that in response to AngII, BXDs with different genetic background expressed hypertension phenotypes with varied degree in severity. It implicates that genomics contribute to pathogenesis of primary hypertension. Building upon the genotype and hypertensive phenotypes, the BXD cohort can be further exploited experimentally to identify genes that influence blood pressure. PMID- 29036575 TI - Peptides of the variable IgG domain as potential biomarker candidates in primary open-angle glaucoma (POAG). AB - Autoantibody profiling has gained increasing interest in the research field of glaucoma promising the detection of highly specific and sensitive marker candidates for future diagnostic purposes. Recent studies demonstrated that immune responses are characterized by the expression of congruent or similar complementarity determining regions (CDR) in different individuals and could be used as molecular targets in biomarker discovery. Main objective of this study was to characterize glaucoma-specific peptides from the variable region of sera derived immunoglobulins using liquid chromatography--mass spectrometry (LC-MS) based quantitative proteomics. IgG was purified from sera of 13 primary open angle glaucoma patients (POAG) and 15 controls (CTRL) and subsequently digested into Fab and Fc by papain. Fab was further purified, tryptic digested and measured by LC-MS/MS. Discovery proteomics revealed in total 75 peptides of the variable IgG domain showing significant glaucoma-related level changes (P < 0.05; log2 fold change >= 0.5): 6 peptides were high abundant in POAG sera, whereas 69 peptides were low abundant in comparison to CTRL group. Via accurate inclusion mass screening strategy 28 IgG V domain peptides were further validated showing significantly decreased expression levels in POAG sera. Amongst others 5 CDR1, 2 CDR2 and 1 CDR3 sequences. In addition, we observed significant shifts in the variable heavy chain family distribution and disturbed kappa/lambda ratios in POAG patients in contrast to CTRL. These findings strongly indicate that glaucoma is accompanied by systemic effects on antibody production and B cell maturation possibly offering new prospects for future diagnostic or therapy purposes. PMID- 29036576 TI - cuRRBS: simple and robust evaluation of enzyme combinations for reduced representation approaches. AB - DNA methylation is an important epigenetic modification in many species that is critical for development, and implicated in ageing and many complex diseases, such as cancer. Many cost-effective genome-wide analyses of DNA modifications rely on restriction enzymes capable of digesting genomic DNA at defined sequence motifs. There are hundreds of restriction enzyme families but few are used to date, because no tool is available for the systematic evaluation of restriction enzyme combinations that can enrich for certain sites of interest in a genome. Herein, we present customised Reduced Representation Bisulfite Sequencing (cuRRBS), a novel and easy-to-use computational method that solves this problem. By computing the optimal enzymatic digestions and size selection steps required, cuRRBS generalises the traditional MspI-based Reduced Representation Bisulfite Sequencing (RRBS) protocol to all restriction enzyme combinations. In addition, cuRRBS estimates the fold-reduction in sequencing costs and provides a robustness value for the personalised RRBS protocol, allowing users to tailor the protocol to their experimental needs. Moreover, we show in silico that cuRRBS-defined restriction enzymes consistently out-perform MspI digestion in many biological systems, considering both CpG and CHG contexts. Finally, we have validated the accuracy of cuRRBS predictions for single and double enzyme digestions using two independent experimental datasets. PMID- 29036578 TI - The roles of membranes and associated cytoskeleton in plant virus replication and cell-to-cell movement. AB - The infection of plants by viruses depends on cellular mechanisms that support the replication of the viral genomes, and the cell-to-cell and systemic movement of the virus via plasmodesmata (PD) and the connected phloem. While the propagation of some viruses requires the conventional endoplasmic reticulum (ER) Golgi pathway, others replicate and spread between cells in association with the ER and are independent of this pathway. Using selected viruses as examples, this review re-examines the involvement of membranes and the cytoskeleton during virus infection and proposes potential roles of class VIII myosins and membrane tethering proteins in controlling viral functions at specific ER subdomains, such as cortical microtubule-associated ER sites, ER-plasma membrane contact sites, and PD. PMID- 29036579 TI - HybridSim-VS: a web server for large-scale ligand-based virtual screening using hybrid similarity recognition techniques. AB - Summary: Molecular-similarity searches based on two-dimensional (2D) fingerprint and three-dimensional (3D) shape represent two widely used ligand-based virtual screening (VS) methods in computer-aided drug design. 2D fingerprint-based VS utilizes the binary fragment information on a known ligand, whereas 3D shape based VS takes advantage of geometric information for predefined features from a 3D conformation. Given their different advantages, it would be desirable to hybridize 2D fingerprint and 3D shape molecular-similarity approaches in drug discovery. Here, we presented a general hybrid molecular-similarity protocol, referred to as HybridSim, obtained by combining the 2D fingerprint- and 3D shape based similarity search methods and evaluated its performance on 595,036 actives and decoys for 40 pharmaceutically relevant targets available in the Directory of Useful Decoys Enhanced (DUD-E). Our results showed that HybridSim significantly improved the overall performance in 40 VS projects as compared with using only 2D fingerprint and 3D shape methods. Furthermore, HybridSim-VS, the first online platform using the proposed HybridSim method coupled with 17,839,945 screenable and purchasable compounds, was developed to provide large-scale and proficient VS capabilities to experts and nonexperts in the field. Availability and implementation: HybridSim-VS web server is freely available at http://www.rcidm.org/HybridSim-VS/. Contact: lingwang@scut.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036577 TI - BiobankUniverse: automatic matchmaking between datasets for biobank data discovery and integration. AB - Motivation: Biobanks are indispensable for large-scale genetic/epidemiological studies, yet it remains difficult for researchers to determine which biobanks contain data matching their research questions. Results: To overcome this, we developed a new matching algorithm that identifies pairs of related data elements between biobanks and research variables with high precision and recall. It integrates lexical comparison, Unified Medical Language System ontology tagging and semantic query expansion. The result is BiobankUniverse, a fast matchmaking service for biobanks and researchers. Biobankers upload their data elements and researchers their desired study variables, BiobankUniverse automatically shortlists matching attributes between them. Users can quickly explore matching potential and search for biobanks/data elements matching their research. They can also curate matches and define personalized data-universes. Availability and implementation: BiobankUniverse is available at http://biobankuniverse.com or can be downloaded as part of the open source MOLGENIS suite at http://github.com/molgenis/molgenis. Contact: m.a.swertz@rug.nl. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036580 TI - Time to epinephrine and survival after paediatric out-of-hospital cardiac arrest. AB - Aims: Delay in administration of epinephrine is associated with decreased survival among children with in-hospital cardiac arrest with an initial non shockable rhythm. Whether this association is applicable to paediatric out-of hospital cardiac arrest (OHCA) population remains unknown. We aimed to determine whether time to epinephrine administration is associated with outcomes in paediatric OHCA. Methods and results: This was a nation-wide population-based study of paediatric OHCA in Japan from 2005 to 2012 based on data from the All Japan Utstein Registry. We included paediatric OHCA patients (aged between 1 and 17 years) who received at least one dose of epinephrine. The primary outcome was 30-day survival. A total of 225 patients were included in the final cohort. Among the 225 patients, 23 (10.2%) survived 30 days after OHCA. The median time from emergency call to first epinephrine administration was 26 min [interquartile range, 20-32; range, 9-128; mean (standard deviation), 28.7 (15.5) min]. Longer time to epinephrine administration was associated with decreased chance of survival: 50.0, 41.2, 13.0, 11.6, 3.9, and 3.1%, respectively, when time to epinephrine was treated as a categorical variable categorized into <=10, 11-15, 16-20, 21-25, 26-30, or > 30 min (P for trend <0.0001), and adjusted odds ratio 0.90 (95% confidence interval 0.82-0.96, P = 0.0011) when time to epinephrine was treated as a linear and continuous variable in a multivariable logistic regression model. Similar trends were observed for prehospital return of spontaneous circulation (P = 0.0032) and neurologically favourable survival (P = 0.0014). Conclusions: Among paediatric OHCA patients, delayed administration of epinephrine was associated with a decreased chance of favourable outcomes. PMID- 29036581 TI - Secondary use of electronic health record data for clinical workflow analysis. AB - Objective: Outpatient clinics lack guidance for tackling modern efficiency and productivity demands. Workflow studies require large amounts of timing data that are prohibitively expensive to collect through observation or tracking devices. Electronic health records (EHRs) contain a vast amount of timing data - timestamps collected during regular use - that can be mapped to workflow steps. This study validates using EHR timestamp data to predict outpatient ophthalmology clinic workflow timings at Oregon Health and Science University and demonstrates their usefulness in 3 different studies. Materials and Methods: Four outpatient ophthalmology clinics were observed to determine their workflows and to time each workflow step. EHR timestamps were mapped to the workflow steps and validated against the observed timings. Results: The EHR timestamp analysis produced times that were within 3 min of the observed times for >80% of the appointments. EHR use patterns affected the accuracy of using EHR timestamps to predict workflow times. Discussion: EHR timestamps provided a reasonable approximation of workflow and can be used for workflow studies. They can be used to create simulation models, analyze EHR use, and quantify the impact of trainees on workflow. Conclusion: The secondary use of EHR timestamp data is a valuable resource for clinical workflow studies. Sample timestamp data files and algorithms for processing them are provided and can be used as a template for more studies in other clinical specialties and settings. PMID- 29036582 TI - CHARACTERIZATION OF CLYC SCINTILLATOR COUPLED WITH PHOTOMULTIPLIERS AND A LARGE SIPM ARRAY. AB - CERN Radiation Protection group has recently developed a novel radiation survey meter called B-RAD able to operate in the presence of a strong magnetic field. The B-RAD will be equipped with a series of probes for gamma dose rate, gamma spectrometry and surface contamination measurements. The feasibility of developing a probe for neutron dose rate and possibly spectral measurements is being investigated. The determination of the breakdown voltage of the SiPM as well as its uniformity between the pixels was performed. The energy resolution of the Cs2LiYCl6:Ce (CLYC) scintillator was measured with the SiPM and compared with two different PMT models: Bialkali and Superbialkali. The temperature sensitivity of the system CLYC + SiPM was measured from -10 to + 40 degrees C. PMID- 29036583 TI - Characterization of moss ent-kaurene oxidase (CYP701B1) using a highly purified preparation. AB - CYP701B1 of the moss, Physcomitrella patents, might be a unique cytochrome P450 having the ent-kaurene oxidase (KO) activity occurring in nonvascular plant. Phylogenetic analysis suggested that the gene encoding CYP701B1 was diverged from a common ancestral gene encoding KO of vascular plants. CYP701B1 expressed in Phichia yeast microsomes was purified and characterized. The purified CYP701B1 catalyzed the oxidation of ent-kaurene to ent-kaurenoic acid through three successive monooxygenations, and the rate-limiting step of this oxidation might be the initial step that forms ent-kaurenol. CYP701B1 was a typical ferric low spin cytochrome P450 and was completely moved to high-spin state upon binding with ent-kaurene, and apparent Kd of ent-kaurene estimated by the spectral change caused by this spin-state shift was 2.5 MUM. The potent KO inhibitor uniconazole, an azole compound with molecular size similar to ent-kaurene, bound CYP701B1 with high affinity. However, ketoconazole, an azole compound whose molecular size is larger than ent-kaurene could not bind to CYP701B, though it binds strongly with CYP51, lanosterol 14-demethylase. The results indicated that the active site of CYP701B1 is fitted for the molecular size of ent-kaurene. The P450 monooxygenase adapted for ent-kaurene oxidation might appear in land plants before evolutionary divergence into vascular and nonvascular plants. PMID- 29036584 TI - cgHeliParm: analysis of dsDNA helical parameters for coarse-grained MARTINI molecular dynamics simulations. AB - Summary: We introduce cgHeliParm, a python program that provides the conformational analysis of Martini-based coarse-grained double strand DNA molecules. The software calculates the helical parameters such as base, base pair and base pair step parameters. cgHeliParm can be used for the analysis of coarse grain Martini molecular dynamics trajectories without transformation into atomistic models. Availability and implementation: This package works with Python 2.7 on MacOS and Linux. The program is freely available for download from https://github.com/ifaust83/cgheliparm. Together with the main script, the base reference files CG_X_std.lib, a number of examples and R scripts are also available from the same website. A tutorial on the use and application is also available at http://cgmartini.nl/index.php/tutorials-general introduction/tutorial-martini-dna. Contact: i.faustino@rug.nl. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036585 TI - Ambulatory pH-impedance-pressure monitoring as a diagnostic tool for the reflux cough syndrome. AB - Gastroesophageal reflux is considered to be a significant contributing factor to chronic unexplained cough. Patients are often presumed to have reflux-induced cough and are exposed to high-dose and long-term empirical therapy with proton pump inhibitors (PPIs) despite the limited treatment efficacy in this population. We aimed to assess the diagnostic value of 24-hour ambulatory pH-impedance pressure monitoring for the diagnosis of reflux-induced chronic cough. In this multicenter study, we evaluated 192 patients with chronic cough using 24-hour pH impedance-pressure monitoring off PPIs. Manometry was used to detect all cough bursts while pH-impedance allowed for the evaluation of all reflux episodes, including weakly acidic reflux. The symptom association probability was used to determine a temporal relationship between reflux and cough. A diagnosis of reflux induced cough was made in 25.5% of the patients. If only acid reflux episodes were used, 22.4% of those patients would not have been diagnosed. Significantly more patients with reflux-induced cough had typical reflux symptoms (P = 0.031) and a pathological distal acid exposure time (P = 0.025) in comparison to patients without the diagnosis. A diagnosis of cough-induced reflux was made in 24.0% of the patients. Only 59% of all cough bursts were registered by the patients. Overall, only approximately one quarter of patients with chronic unexplained cough have reflux-induced cough, explaining the observation that the vast majority of patients with chronic cough do not benefit from antireflux therapy. pH-impedance-pressure monitoring helps to identify patients who are likely to have reflux as a cause of their chronic cough. PMID- 29036586 TI - Epigenetic mechanisms underlie the crosstalk between growth factors and a steroid hormone. AB - Crosstalk between growth factors (GFs) and steroid hormones recurs in embryogenesis and is co-opted in pathology, but underlying mechanisms remain elusive. Our data from mammary cells imply that the crosstalk between the epidermal GF and glucocorticoids (GCs) involves transcription factors like p53 and NF-kappaB, along with reduced pausing and traveling of RNA polymerase II (RNAPII) at both promoters and bodies of GF-inducible genes. Essentially, GCs inhibit positive feedback loops activated by GFs and stimulate the reciprocal inhibitory loops. As expected, no alterations in DNA methylation accompany the transcriptional events instigated by either stimulus, but forced demethylation of regulatory regions broadened the repertoire of GF-inducible genes. We report that enhancers, like some promoters, are poised for activation by GFs and GCs. In addition, within the cooperative interface of the crosstalk, GFs enhance binding of the GC receptor to DNA and, in synergy with GCs, promote productive RNAPII elongation. Reciprocally, within the antagonistic interface GFs hyper-acetylate chromatin at unmethylated promoters and enhancers of genes involved in motility, but GCs hypoacetylate the corresponding regions. In conclusion, unmethylated genomic regions that encode feedback regulatory modules and differentially recruit RNAPII and acetylases/deacetylases underlie the crosstalk between GFs and a steroid hormone. PMID- 29036587 TI - Latent Profile Analysis and Conversion to Psychosis: Characterizing Subgroups to Enhance Risk Prediction. AB - BACKGROUND: Groups at clinical high risk (CHR) of developing psychosis are heterogeneous, composed of individuals with different clusters of symptoms. It is likely that there exist subgroups, each associated with different symptom constellations and probabilities of conversion. METHOD: Present study used latent profile analysis (LPA) to ascertain subgroups in a combined sample of CHR (n = 171) and help-seeking controls (HSCs; n = 100; PREDICT study). Indicators in the LPA model included baseline Scale of Prodromal Symptoms (SOPS), Calgary Depression Scale for Schizophrenia (CDSS), and neurocognitive performance as measured by multiple instruments, including category instances (CAT). Subgroups were further characterized using covariates measuring demographic and clinical features. RESULTS: Three classes emerged: class 1 (mild, transition rate 5.6%), lowest SOPS and depression scores, intact neurocognitive performance; class 2 (paranoid-affective, transition rate 14.2%), highest suspiciousness, mild negative symptoms, moderate depression; and class 3 (negative-neurocognitive, transition rate 29.3%), highest negative symptoms, neurocognitive impairment, social cognitive impairment. Classes 2 and 3 evidenced poor social functioning. CONCLUSIONS: Results support a subgroup approach to research, assessment, and treatment of help-seeking individuals. Class 3 may be an early risk stage of developing schizophrenia. PMID- 29036589 TI - Simultaneous Determination of 11 High-Polarity Components from Fructus Corni: A Quantitative LC-MS/MS Method for Improved Quality Control. AB - Fructus Corni, the dried ripe sarcocarp of Cornus officinalis Sieb.et Zucc (Cornaceae), is widely used in traditional medicine. Pharmacological studies to date have attributed many biological effects to the high-polarity components. However, current quality control methods focus on only several iridoid glycoside components, and, of note, there is no comprehensive method available to simultaneously quantify the high-polarity components in Fructus Corni. Here, a simple, sensitive and robust liquid chromatography-electrospray ionization-tandem mass spectrometry method was developed to simultaneously determine 11 high polarity constituents (5-hydroxymethyl-2-furfural, gallic acid, sweroside, cornin, loganin, morroniside, 7alpha-O-methylmorroniside, 7beta-O methylmorroniside, 7alpha-O-ethylmorroniside and 7beta-O-ethylmorroniside, cornuside) of Fructus Corni. This method showed good specificity, linearity (r2 >= 0.9907), repeatability (RSD < 5.98%) and recovery (93.24 ~ 112.92%, RSD < 9.06%). This validated method was successfully employed to assess the component variation of crude Fructus Corni of three regional origins as well as after processing. In particular, the iridoid isomers were, for the first time, included as the quality markers for Fructus Corni. We propose that this method may provide a new and powerful tool for achieving comprehensive quality control of Fructus Corni. PMID- 29036588 TI - A novel data structure to support ultra-fast taxonomic classification of metagenomic sequences with k-mer signatures. AB - Motivation: Metagenomic read classification is a critical step in the identification and quantification of microbial species sampled by high-throughput sequencing. Although many algorithms have been developed to date, they suffer significant memory and/or computational costs. Due to the growing popularity of metagenomic data in both basic science and clinical applications, as well as the increasing volume of data being generated, efficient and accurate algorithms are in high demand. Results: We introduce MetaOthello, a probabilistic hashing classifier for metagenomic sequencing reads. The algorithm employs a novel data structure, called l-Othello, to support efficient querying of a taxon using its k mer signatures. MetaOthello is an order-of-magnitude faster than the current state-of-the-art algorithms Kraken and Clark, and requires only one-third of the RAM. In comparison to Kaiju, a metagenomic classification tool using protein sequences instead of genomic sequences, MetaOthello is three times faster and exhibits 20-30% higher classification sensitivity. We report comparative analyses of both scalability and accuracy using a number of simulated and empirical datasets. Availability and implementation: MetaOthello is a stand-alone program implemented in C ++. The current version (1.0) is accessible via https://doi.org/10.5281/zenodo.808941. Contact: liuj@cs.uky.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036590 TI - TissGDB: tissue-specific gene database in cancer. AB - Tissue-specific gene expression is critical in understanding biological processes, physiological conditions, and disease. The identification and appropriate use of tissue-specific genes (TissGenes) will provide important insights into disease mechanisms and organ-specific therapeutic targets. To better understand the tissue-specific features for each cancer type and to advance the discovery of clinically relevant genes or mutations, we built TissGDB (Tissue specific Gene DataBase in cancer) available at http://zhaobioinfo.org/TissGDB. We collected and curated 2461 tissue specific genes (TissGenes) across 22 tissue types that matched the 28 cancer types of The Cancer Genome Atlas (TCGA) from three representative tissue-specific gene expression resources: The Human Protein Atlas (HPA), Tissue-specific Gene Expression and Regulation (TiGER), and Genotype-Tissue Expression (GTEx). For these 2461 TissGenes, we performed gene expression, somatic mutation, and prognostic marker-based analyses across 28 cancer types using TCGA data. Our analyses identified hundreds of TissGenes, including genes that universally kept or lost tissue-specific gene expression, with other features: cancer type specific isoform expression, fusion with oncogenes or tumor suppressor genes, and markers for protective or risk prognosis. TissGDB provides seven categories of annotations: TissGeneSummary, TissGeneExp, TissGene-miRNA, TissGeneMut, TissGeneNet, TissGeneProg, TissGeneClin. PMID- 29036591 TI - PLACNETw: a web-based tool for plasmid reconstruction from bacterial genomes. AB - Summary: PLACNET is a graph-based tool for reconstruction of plasmids from next generation sequence pair-end datasets. PLACNET graphs contain two types of nodes (assembled contigs and reference genomes) and two types of edges (scaffold links and homology to references). Manual pruning of the graphs is a necessary requirement in PLACNET, but this is difficult for users without solid bioinformatic background. PLACNETw, a webtool based on PLACNET, provides an interactive graphic interface, automates BLAST searches, and extracts the relevant information for decision making. It allows a user with domain expertise to visualize the scaffold graphs and related information of contigs as well as reference sequences, so that the pruning operations can be done interactively from a personal computer without the need for additional tools. After successful pruning, each plasmid becomes a separate connected component subgraph. The resulting data are automatically downloaded by the user. Availability and implementation: PLACNETw is freely available at https://castillo.dicom.unican.es/upload/. Contact: delacruz@unican.es. Supplementary information: A tutorial video and several solved examples are available at https://castillo.dicom.unican.es/placnetw_video/ and https://castillo.dicom.unican.es/examples/. PMID- 29036593 TI - EELS at very high energy losses. AB - Electron energy-loss spectroscopy (EELS) has been investigated in the range from 2 to >10 keV using an optimized optical coupling of the microscope to the spectrometer to improve the high loss performance in EELS. It is found that excellent quality data can now be acquired up until about 5 keV, suitable for both energy loss near edge structure (ELNES) studies of oxidation and local chemistry, and potentially useful for extended energy loss fine structure (EXELFS) studies of local atomic ordering. Examples studied included oxidation in Zr, Mo and Sn, and the ELNES and EXELFS of the Ti-K edge. It is also shown that good quality electron energy-loss spectroscopy can even be performed for losses above 9.2 keV, the energy loss at which the collection angle becomes 'infinite', and this is demonstrated using the tungsten L3 edge at about 10.2 keV. PMID- 29036592 TI - Gain and Loss of Small RNA Classes-Characterization of Small RNAs in the Parasitic Nematode Family Strongyloididae. AB - The nematode family Strongyloididae is of particular interest because it contains important parasites of medical and veterinary relevance. In addition, species of this family can form parasitic and free-living generations and it also occupies an interesting phylogenetic position within the nematodes. Nematodes differ in several ways from other taxa with respect to their small noncoding RNAs. Recent comparative studies revealed that there is also considerable variability within the nematodes. However, no Strongyloididae species or close relative was included in these studies. We characterized the small RNAs of two developmental stages of three different Strongyloididae species and compared them with the well-studied free-living nematodes Caenorhabditis elegans and Pristionchus pacificus. Strongyloididae have conserved and taxon-specific microRNAs, many of which are differentially regulated between the two developmental stages. We identified a novel class of around 27-nucleotide-long RNAs starting with 5'G or A, of which a large fraction have the potential to target transposable elements. These RNAs most likely have triphosphates at their 5' ends and are therefore presumably synthesized by RNA-dependent RNA polymerases. In contrast to C. elegans but similarly to some other nematode taxa, Strongyloididae have no Piwi-interacting RNAs, nor do their genomes encode Argonaute proteins of the Piwi family. Finally, we attempted but failed to detect circulating parasite small RNAs in the blood of hosts. PMID- 29036594 TI - Impaired defense reactions in apple replant disease-affected roots of Malus domestica 'M26'. AB - A soil- and site-dependent complex of diverse microbial populations causes apple replant disease (ARD), which leads to economic losses for tree nurseries and apple producers due to reduced plant growth and diminished fruit yields. Soil fumigation has been widely used to mitigate ARD, but the application of these chemicals is restricted in the European Union. Hence, other counteractions have to be developed. Genomics-based breeding may be used to select ARD-tolerant genotypes; however, molecular responses of ARD are not well understood. Recent studies revealed that biotic stress-associated genes involved in typical defense reactions are activated but do not result in an adequate response to ARD. The objective of this study was to analyze selected responsive genes in a time-course experiment to test for expression kinetics. Cultivating the ARD-susceptible apple rootstock 'M26' on ARD-affected soil resulted in significantly reduced growth as early as 7 days after planting. Genes involved in phytoalexin biosynthesis were upregulated in ARD samples as early as 3 days after planting and reached up to 26 fold changes at Day 10, which resulted in high amounts of 3-hydroxy-5 methoxybiphenyl, aucuparin, noraucuparin, 2-hydroxy-4-methoxydibenzofuran, 2' hydroxyaucuparin and noreriobofuran. For the first time, these phytoalexins were detected, identified and quantified in apple roots. The lack of a sufficient defense response may be due to impaired sequestration and/or exudation of the potentially cytotoxic phytoalexins and perturbed formation of reactive oxygen species, leading to root damage in ARD soils. The findings provide a basis for comparative studies of the defense processes in more ARD-tolerant rootstocks. PMID- 29036595 TI - Persistent in vivo cytogenetic effects of radioiodine therapy: a 21-year follow up study using multicolor FISH. AB - Our previous studies demonstrated the cytogenetic effects in the peripheral blood lymphocytes of a 34-year-old male patient who received ablative radioactive 131iodine therapy (RIT) on two different occasions in 1992 and 1994. Assessment of RIT-induced chromosomal damage by the cytokinesis-blocked micronucleus assay (CBMN) showed the persistence of elevated micronucleus frequency in this patient for more than two decades since the first RIT. Subsequent cytogenetic analysis performed in 2012 revealed both stable and unstable aberrations, whose frequencies were higher than the baseline reported in the literature. Here, we report the findings of our recent cytogenetic analysis peformed in 2015 on this patient using the multicolor fluorescence in situ hybridization (mFISH) technique. Our results showed that both reciprocal and non-reciprocal translocations persisted at higher frequencies in the patient than those reported in 2012. Persistence of structural aberrations for more than two decades indicate that these aberrations might have originated from long-lived T-lymphocytes or hematopoietic stem cells. Our study suggests that the long-term persistence of chromosome translocations in circulating lymphocytes can be useful for monitoring the extent of RIT-induced chromosomal instability several years after exposure and for estimating the cumulative absorbed dose after multiple RITs for retrospective biodosimetry purposes. This is perhaps the first and longest follow up study documenting the persistence of cytogenetic damage for 21 years after internal radiation exposure. PMID- 29036596 TI - DelPhiForce web server: electrostatic forces and energy calculations and visualization. AB - Summary: Electrostatic force is an essential component of the total force acting between atoms and macromolecules. Therefore, accurate calculations of electrostatic forces are crucial for revealing the mechanisms of many biological processes. We developed a DelPhiForce web server to calculate and visualize the electrostatic forces at molecular level. DelPhiForce web server enables modeling of electrostatic forces on individual atoms, residues, domains and molecules, and generates an output that can be visualized by VMD software. Here we demonstrate the usage of the server for various biological problems including protein cofactor, domain-domain, protein-protein, protein-DNA and protein-RNA interactions. Availability and implementation: The DelPhiForce web server is available at: http://compbio.clemson.edu/delphi-force. Contact: delphi@clemson.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036597 TI - Faucet: streaming de novo assembly graph construction. AB - Motivation: We present Faucet, a two-pass streaming algorithm for assembly graph construction. Faucet builds an assembly graph incrementally as each read is processed. Thus, reads need not be stored locally, as they can be processed while downloading data and then discarded. We demonstrate this functionality by performing streaming graph assembly of publicly available data, and observe that the ratio of disk use to raw data size decreases as coverage is increased. Results: Faucet pairs the de Bruijn graph obtained from the reads with additional meta-data derived from them. We show these metadata-coverage counts collected at junction k-mers and connections bridging between junction pairs-contain most salient information needed for assembly, and demonstrate they enable cleaning of metagenome assembly graphs, greatly improving contiguity while maintaining accuracy. We compared Fauceted resource use and assembly quality to state of the art metagenome assemblers, as well as leading resource-efficient genome assemblers. Faucet used orders of magnitude less time and disk space than the specialized metagenome assemblers MetaSPAdes and Megahit, while also improving on their memory use; this broadly matched performance of other assemblers optimizing resource efficiency-namely, Minia and LightAssembler. However, on metagenomes tested, Faucet,o outputs had 14-110% higher mean NGA50 lengths compared with Minia, and 2- to 11-fold higher mean NGA50 lengths compared with LightAssembler, the only other streaming assembler available. Availability and implementation: Faucet is available at https://github.com/Shamir-Lab/Faucet. Contact: rshamir@tau.ac.il or eranhalperin@gmail.com. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036598 TI - Global DNA methylation analysis reveals miR-214-3p contributes to cisplatin resistance in pediatric intracranial nongerminomatous malignant germ cell tumors. AB - Background: Pediatric central nervous system germ cell tumors (CNSGCTs) are rare and heterogeneous neoplasms, which can be divided into germinomas and nongerminomatous germ cell tumors (NGGCTs). NGGCTs are further subdivided into mature teratomas and nongerminomatous malignant GCTs (NGMGCTs). Clinical outcomes suggest that NGMGCTs have poor prognosis and survival and that they require more extensive radiotherapy and adjuvant chemotherapy. However, the mechanisms underlying this difference are still unclear. DNA methylation alteration is generally acknowledged to cause therapeutic resistance in cancers. We hypothesized that the pediatric NGMGCTs exhibit a different genome-wide DNA methylation pattern, which is involved in the mechanism of its therapeutic resistance. Methods: We performed methylation and hydroxymethylation DNA immunoprecipitation sequencing, mRNA expression microarray, and small RNA sequencing (smRNA-seq) to determine methylation-regulated genes, including microRNAs (miRNAs). Results: The expression levels of 97 genes and 8 miRNAs were correlated with promoter DNA methylation and hydroxymethylation status, such as the miR-199/-214 cluster, and treatment with DNA demethylating agent 5-aza-2' deoxycytidine elevated its expression level. Furthermore, smRNA-seq analysis showed 27 novel miRNA candidates with differential expression between germinomas and NGMGCTs. Overexpresssion of miR-214-3p in NCCIT cells leads to reduced expression of the pro-apoptotic protein BCL2-like 11 and induces cisplatin resistance. Conclusions: We interrogated the differential DNA methylation patterns between germinomas and NGMGCTs and proposed a mechanism for chemoresistance in NGMGCTs. In addition, our sequencing data provide a roadmap for further pediatric CNSGCT research and potential targets for the development of new therapeutic strategies. PMID- 29036599 TI - Carbon allocation and partitioning in Populus tremuloides are modulated by ectomycorrhizal fungi under phosphorus limitation. AB - The fate of carbon (C) captured by forest trees during photosynthesis is influenced by the supply of other resources. Fixed C may be partitioned among biomolecules within the leaf and/or allocated throughout the tree to growth, storage and maintenance activities. Phosphorus (P) availability often limits tree productivity due to its high biological demand and strong interactions with soil minerals. As ectomycorrhizal (ECM) fungi play critical roles in enhancing phosphate (Pi) acquisition by their hosts, these symbioses will influence the fate of C within trees and forested ecosystems. Using Populus tremuloides Michx. (trembling aspen) in symbiosis with Laccaria bicolor (Marie) P.D. Orton or Paxillus involutus (Batsch) Fr., we assessed C acquisition, allocation and partitioning under Pi limitation, specifically focusing on primary and secondary C compounds. Both ECM fungi moderated the effects of low P on photosynthesis and C partitioning among carbohydrates and secondary metabolites by sustaining Pi uptake and translocation in P. tremuloides under Pi limitation. As leaf P declined, reductions in photosynthesis were accompanied by significant shifts in C partitioning from nonstructural carbohydrates (NSCs) to phenolic glycosides and tannins. Carbon partitioning in roots exhibited more complex patterns, with distinct increases in NSCs in nonmycorrhizal (NM) plants under Pi limitation that were not evident in plants colonized by either ECM symbiont. In general, aspen colonized by L. bicolor exhibited C partitioning patterns intermediate between those of NM and P. involutus aspen. The C cost of symbiosis was pronounced for plants supporting P. involutus, where ECM plants exhibited maintenance of photosynthesis yet reduced biomass in comparison with NM and L. bicolor aspen under Pi replete conditions. Our results indicate that the ECM symbiosis affects the disposition of C in forest trees in part by altering the acquisition of other limiting resources from soils, but also through ECM species-specific influences on host physiology. This modulation of C partitioning will have broad implications for forest ecosystem C capture, storage and cycling where nutrient resources may be limited. PMID- 29036600 TI - Brain cancer cluster investigation around a factory emitting dichloromethane. AB - Background: The health risks associated with dichloromethane (DCM) for the general population living near industrial activities have not yet been quantified, primarily due to lack of epidemiological datasets. In the absence of such human data, we undertook a cancer cluster investigation in Cyprus around a historically using DCM plant producing shoe soles that were globally exported. We designed the methodology to investigate the possible existence of a cancer cluster in the area around the factory (point zero) and within a radius of 500 meters. Methods: A retrospective comparative population study was designed using a group of cancer patients living or working in the chosen geographical area around the factory. Results: Mean stack emissions of DCM of 88 mg/Nm3 and flow rates of 850 g/h exceeded the permissible DCM limits established for industrial zones. Brain and central nervous system (CNS) cancer incidence rates showed significant (P < 0.001) increase in the study area around the plant when compared with those observed in other areas of Cyprus. Calculated standardized incidence ratios for brain/CNS after adjusting for the age at diagnosis ranged from 11.3 25.7 [mean 6.5 (3.02 : 12.3)] for the study area. Conclusions: We showed the association between chronic, unintentional DCM exposures and brain/CNS cancer cases for the general population located in a residential area being in close proximity with a plant historically emitting DCM. PMID- 29036601 TI - Arrhythmogenic right ventricular cardiomyopathy: implications of next-generation sequencing and of miRNAs regulation in appropriate understanding and treatment. PMID- 29036603 TI - Identification of optimal reference genes for transcriptomic analyses in normal and diseased human heart. AB - Aims: Quantitative real-time RT-PCR (RT-qPCR) has become the method of choice for mRNA quantification, but requires an accurate normalization based on the use of reference genes showing invariant expression across various pathological conditions. Only few data exist on appropriate reference genes for the human heart. The objective of this study was to determine a set of suitable reference genes in human atrial and ventricular tissues, from right and left cavities in control and in cardiac diseases. Methods and results: We assessed the expression of 16 reference genes (ACTB, B2M, GAPDH, GUSB, HMBS, HPRT1, IPO8, PGK1, POLR2A, PPIA, RPLP0, TBP, TFRC, UBC, YWHAZ, 18S) in tissues from: right and left ventricles from healthy controls and heart failure (HF) patients; right-atrial tissue from patients in sinus rhythm with (SRd) or without (SRnd) atrial dilatation, patients with paroxysmal (pAF) or chronic (cAF) atrial fibrillation or with HF; and left-atrial tissue from patients in SR or cAF. Consensual analysis (by geNorm and Normfinder algorithms, BestKeeper software tool and comparative delta-Ct method) of the variability scores obtained for each reference gene expression shows that the most stably expressed genes are: GAPDH, GUSB, IPO8, POLR2A, and YWHAZ when comparing either right and left ventricle or ventricle from healthy controls and HF patients; GAPDH, IPO8, POLR2A, PPIA, and RPLP0 when comparing either right and left atrium or right atria from all pathological groups. ACTB, TBP, TFRC, and 18S genes were identified as the least stable. Conclusions: The overall most stable reference genes across different heart cavities and disease conditions were GAPDH, IPO8, POLR2A and PPIA. YWHAZ or GUSB could be added to this set for some specific experiments. This study should provide useful guidelines for reference gene selection in RT-qPCR studies in human heart. PMID- 29036602 TI - N6-adenine DNA methylation is associated with the linker DNA of H2A.Z-containing well-positioned nucleosomes in Pol II-transcribed genes in Tetrahymena. AB - DNA N6-methyladenine (6mA) is newly rediscovered as a potential epigenetic mark across a more diverse range of eukaryotes than previously realized. As a unicellular model organism, Tetrahymena thermophila is among the first eukaryotes reported to contain 6mA modification. However, lack of comprehensive information about 6mA distribution hinders further investigations into its function and regulatory mechanism. In this study, we provide the first genome-wide, base pair resolution map of 6mA in Tetrahymena by applying single-molecule real-time (SMRT) sequencing. We provide evidence that 6mA occurs mostly in the AT motif of the linker DNA regions. More strikingly, these linker DNA regions with 6mA are usually flanked by well-positioned nucleosomes and/or H2A.Z-containing nucleosomes. We also find that 6mA is exclusively associated with RNA polymerase II (Pol II)-transcribed genes, but is not an unambiguous mark for active transcription. These results support that 6mA is an integral part of the chromatin landscape shaped by adenosine triphosphate (ATP)-dependent chromatin remodeling and transcription. PMID- 29036604 TI - Accomplishing reform: successful case studies drawn from the health systems of 60 countries. AB - Healthcare reform typically involves orchestrating a policy change, mediated through some form of operational, systems, financial, process or practice intervention. The aim is to improve the ways in which care is delivered to patients. In our book 'Health Systems Improvement Across the Globe: Success Stories from 60 Countries', we gathered case-study accomplishments from 60 countries. A unique feature of the collection is the diversity of included countries, from the wealthiest and most politically stable such as Japan, Qatar and Canada, to some of the poorest, most densely populated or politically challenged, including Afghanistan, Guinea and Nigeria. Despite constraints faced by health reformers everywhere, every country was able to share a story of accomplishment-defining how their case example was managed, what services were affected and ultimately how patients, staff, or the system overall, benefited. The reform themes ranged from those relating to policy, care coverage and governance; to quality, standards, accreditation and regulation; to the organization of care; to safety, workforce and resources; to technology and IT; through to practical ways in which stakeholders forged collaborations and partnerships to achieve mutual aims. Common factors linked to success included the 'acorn-to-oak tree' principle (a small scale initiative can lead to system wide reforms); the 'data-to-information-to-intelligence' principle (the role of IT and data are becoming more critical for delivering efficient and appropriate care, but must be converted into useful intelligence); the 'many-hands' principle (concerted action between stakeholders is key); and the 'patient-as-the-pre eminent-player' principle (placing patients at the centre of reform designs is critical for success). PMID- 29036605 TI - Survey of laboratory practices for diagnosis of fungal infection in seven Asian countries: An Asia Fungal Working Group (AFWG) initiative. AB - An online survey of mycology laboratories in seven Asian countries was conducted to assess the status, competence, and services available. Country representatives from the Asia Fungal Working Group (AFWG) contacted as many laboratories performing mycology diagnosis as possible in their respective countries, requesting that the laboratory heads complete the online survey. In total, 241 laboratories responded, including 71 in China, 104 in India, 11 in Indonesia, 26 in the Philippines, four in Singapore, 18 in Taiwan, and seven in Thailand. Overall, 129/241 (53.5%) surveyed mycology laboratories operate as separate designated mycology laboratories, 75/241 (31.1%) conduct regular formal staff training, 103/241 (42.7%) are accredited, and 88/157 (56.1%) participate in external quality assurance scheme (EQAS) programs. Microscopy and culture methods are available in nearly all laboratories, although few perform DNA sequencing (37/219; 16.9%) or use matrix-assisted laser desorption/ionization time-of-flight mass spectroscopy (MALDI-TOF MS) (27/219; 12.3%) for isolate identification. Antifungal susceptibility testing is performed in 142/241 (58.9%) laboratories, mainly for yeasts. The most commonly performed nonculture diagnostic is cryptococcal antigen testing (66 laboratories), followed by galactomannan testing (55), polymerase chain reaction (PCR) diagnosis (37), and beta-D-glucan testing (24). Therapeutic drug monitoring is conducted in 21 laboratories. There is almost no access to advanced diagnostic tests, like galactomannan, beta-D-glucan, and PCR, in the surveyed laboratories in Indonesia, the Philippines, and Thailand. These results highlight the need for development of quality laboratories, accreditation and training of manpower in existing laboratories, and access to advanced non-culture-based diagnostic tests to facilitate the diagnosis of fungal infections in Asia. PMID- 29036606 TI - Socioeconomic Status and Childhood Cancer Incidence: A Population-Based Multilevel Analysis. AB - The etiology of childhood cancers remains largely unknown, especially regarding environmental and behavioral risk factors. Unpacking the association between socioeconomic status (SES) and incidence may offer insight into such etiology. We tested associations between SES and childhood cancer incidence in a population based case-cohort study (source cohort: Minnesota birth registry, 1989-2014). Cases, ages 0-14 years, were linked from the Minnesota Cancer Surveillance System to birth records through probabilistic record linkage. Controls were 4:1 frequency matched on birth year (2,947 cases and 11,907 controls). We tested associations of individual-level (maternal education) and neighborhood-level (census tract composite index) SES using logistic mixed models. In crude models, maternal education was positively associated with incidence of acute lymphoblastic leukemia (odds ratio (OR) = 1.10, 95% confidence interval (CI): 1.02, 1.19), central nervous system tumors (OR = 1.12, 95% CI: 1.04, 1.21), and neuroblastoma (OR = 1.15, 95% CI: 1.02, 1.30). Adjustment for established risk factors-including race/ethnicity, maternal age, and birth weight-substantially attenuated these positive associations. Similar patterns were observed for neighborhood-level SES. Conversely, higher maternal education was inversely associated with hepatoblastoma incidence (adjusted OR = 0.70, 95% CI: 0.51, 0.98). Overall, beyond the social patterning of established demographic and pregnancy-related exposures, SES is not strongly associated with childhood cancer incidence. PMID- 29036607 TI - Endoscopic and histopathologic reflux-associated mucosal damage in the remnant esophagus following transthoracic esophagectomy for cancer-5-year long-term follow-up. AB - Gastroesophageal reflux is a common problem following esophagectomy and reconstruction with gastric interposition. Despite a routine prescription of proton pump inhibitors, reflux-associated mucosal damage in the remnant esophagus is frequently observed. Purpose of this study is to evaluate mucosal damage in the esophageal remnant during long-term follow-up and to compare the prevalence of this damage between the subgroups of esophageal squamous cell and adenocarcinoma. All patients undergoing transthoracic Ivor-Lewis esophagectomy were prospectively entered in our IRB approved database. All patients underwent a routine check-up program with yearly surveillance endoscopies following esophagectomy. Only patients with a complete follow-up were included into this study. Endoscopic and histopathologic mucosal changes of the remnant esophagus were analyzed in close intervals. A total of 50 patients met the inclusion criteria, consisting of 31 adenocarcinomas (AC) and 19 squamous cell carcinomas (SCC). Mucosal damage was already seen 1 year after surgery in 20 patients macroscopically (43%) and in 21 patients microscopically (45%). At 5-year follow up the prevalence for macroscopic and microscopic damage was 55% and 60%, respectively. The prevalence of mucosal damage was higher in AC patients than in SCC patients (1y-FU: 51% [AC] vs. 28% [SCC]; 5y-FU: 68% [AC] vs. 35% [SCC], P < 0.05). Newly acquired Barrett's esophagus was seen in 10 patients (20%) with two of those patients (20%) showing histopathologic proof of neoplasia. This study shows a high prevalence of reflux-associated mucosal damage in the remnant esophagus one year out of surgery and only a moderate increase in prevalence in the following years. Mucosal damage was more frequently seen in AC patients and the occurrence of de-novo Barrett's esophagus and de-novo neoplasia was high. Endoscopic surveillance with targeted biopsies seems to be an indispensable tool to follow patients after esophagectomy appropriately. PMID- 29036609 TI - Computed flow and fluorescence over the ocular surface. AB - Fluorescein is perhaps the most commonly used substance to visualize tear film thickness and dynamics; better understanding of this process aids understanding of dry eye syndrome which afflicts millions of people. We study a mathematical model for tear film flow, evaporation, solutal transport and fluorescence over the exposed ocular surface during the interblink. Transport of the fluorescein ion by fluid flow in the tear film affects the intensity of fluorescence via changes in concentration and tear film thickness. Evaporation causes increased osmolarity and potential irritation over the ocular surface; it also alters fluorescein concentration and thus fluorescence. Using thinning rates from in vivo measurements together with thin film equations for flow and transport of multiple solutes, we compute dynamic results for tear film quantities of interest. We compare our computed fluorescent intensity distributions with in vivo observations. A number of experimental features are recovered by the model. PMID- 29036610 TI - Saddle nose deformity and granulomatosis with polyangiitis. PMID- 29036608 TI - Insights into RNA polymerase catalysis and adaptive evolution gained from mutational analysis of a locus conferring rifampicin resistance. AB - S531 of Escherichia coli RNA polymerase (RNAP) beta subunit is a part of RNA binding domain in transcription complex. While highly conserved, S531 is not involved in interactions within the transcription complex as suggested by X-ray analysis. To understand the basis for S531 conservation we performed systematic mutagenesis of this residue. We find that the most of the mutations significantly decreased initiation-to-elongation transition by RNAP. Surprisingly, some changes enhanced the production of full-size transcripts by suppressing abortive loss of short RNAs. S531-R increased transcript retention by establishing a salt bridge with RNA, thereby explaining the R substitution at the equivalent position in extremophilic organisms, in which short RNAs retention is likely to be an issue. Generally, the substitutions had the same effect on bacterial doubling time when measured at 20 degrees . Raising growth temperature to 37 degrees ablated the positive influence of some mutations on the growth rate in contrast to their in vitro action, reflecting secondary effects of cellular environment on transcription and complex involvement of 531 locus in the cell biology. The properties of generated RNAP variants revealed an RNA/protein interaction network that is crucial for transcription, thereby explaining the details of initiation to-elongation transition on atomic level. PMID- 29036612 TI - CD40L controls obesity-associated vascular inflammation, oxidative stress, and endothelial dysfunction in high fat diet-treated and db/db mice. AB - Aims: CD40 ligand (CD40L) signaling controls vascular oxidative stress and related dysfunction in angiotensin-II-induced arterial hypertension by regulating vascular immune cell recruitment and platelet activation. Here we investigated the role of CD40L in experimental hyperlipidemia. Methods and results: Male wild type and CD40L-/- mice (C57BL/6 background) were subjected to high fat diet for sixteen weeks. Weight, cholesterol, HDL, and LDL levels, endothelial function (isometric tension recording), oxidative stress (NADPH oxidase expression, dihydroethidium fluorescence) and inflammatory parameters (inducible nitric oxide synthase, interleukin-6 expression) were assessed. CD40L expression, weight, leptin and lipids were increased, and endothelial dysfunction, oxidative stress and inflammation were more pronounced in wild type mice on a high fat diet, all of which was almost normalized by CD40L deficiency. Similar results were obtained in diabetic db/db mice with CD40/TRAF6 inhibitor (6877002) therapy. In a small human study higher serum sCD40L levels and an inflammatory phenotype were detected in the blood and Aorta ascendens of obese patients (body mass index > 35) that underwent by-pass surgery. Conclusion: CD40L controls obesity-associated vascular inflammation, oxidative stress and endothelial dysfunction in mice and potentially humans. Thus, CD40L represents a therapeutic target in lipid metabolic disorders which is a leading cause in cardiovascular disease. PMID- 29036614 TI - Identification of a Candidate Mutation in the COL1A2 Gene of a Chow Chow With Osteogenesis Imperfecta. AB - Osteogenesis imperfecta (OI) is a genetic disease that occurs in humans and animals. Individuals with OI exhibit signs of extreme bone fragility and osteopenia with frequent fractures and perinatal lethality in severe cases. In this study, we report the clinical diagnosis of OI in a dog and the use of targeted next-generation sequencing to identify a candidate autosomal dominant mutation in the COL1A2 gene. A 5-month-old male Chow Chow was examined with a fractured left humerus and resolving, bilateral femoral fractures. Radiographs revealed generalized osteopenia and bilateral humeral, radial, and femoral fractures. Targeted next-generation sequencing of genes associated with OI in humans (COL1A1, COL1A2, LEPRE1, SERPINH1, and CRTAP) revealed a G>A heterozygous mutation in the splice donor site of exon 18 of the COL1A2 gene (c.936 + 1G>A). The splice donor mutation was not detected among 91 control dogs representing 21 breeds. A comparative analysis of exon 18 and the exon-intron junction further showed that the mutated splice donor site is conserved among vertebrates. Altogether, these findings reveal a candidate autosomal splice donor site mutation causing OI in an individual Chow Chow. PMID- 29036613 TI - Surgical outcomes of robot-assisted rectal cancer surgery using the da Vinci Surgical System: a multi-center pilot Phase II study. AB - Introduction: We conducted a multi-center pilot Phase II study to examine the safety of robotic rectal cancer surgery performed using the da Vinci Surgical System during the introduction period of robotic rectal surgery at two institutes based on surgical outcomes. Methods: This study was conducted with a prospective, multi-center, single-arm, open-label design to assess the safety and feasibility of robotic surgery for rectal cancer (da Vinci Surgical System). The primary endpoint was the rate of adverse events during and after robotic surgery. The secondary endpoint was the completion rate of robotic surgery. Results: Between April 2014 and July 2016, 50 patients were enrolled in this study. Of these, 10 (20%) had rectosigmoid cancer, 17 (34%) had upper rectal cancer, and 23 (46%) had lower rectal cancer; six underwent high anterior resection, 32 underwent low anterior resection, 11 underwent intersphincteric resection, and one underwent abdominoperineal resection. Pathological stages were Stage 0 in 1 patient, Stage I in 28 patients, Stage II in 7 patients and Stage III in 14 patients. Pathologically complete resection was achieved in all patients. There was no intraoperative organ damage or postoperative mortality. Eight (16%) patients developed complications of all grades, of which 2 (4%) were Grade 3 or higher, including anastomotic leakage (2%) and conversion to open surgery (2%). Conclusion: The present study demonstrates the feasibility and safety of robotic rectal cancer surgery, as reflected by low morbidity and low conversion rates, during the introduction period. PMID- 29036611 TI - Progranulin-mediated deficiency of cathepsin D results in FTD and NCL-like phenotypes in neurons derived from FTD patients. AB - Frontotemporal dementia (FTD) encompasses a group of neurodegenerative disorders characterized by cognitive and behavioral impairments. Heterozygous mutations in progranulin (PGRN) cause familial FTD and result in decreased PGRN expression, while homozygous mutations result in complete loss of PGRN expression and lead to the neurodegenerative lysosomal storage disorder neuronal ceroid lipofuscinosis (NCL). However, how dose-dependent PGRN mutations contribute to these two different diseases is not well understood. Using iPSC-derived human cortical neurons from FTD patients harboring PGRN mutations, we demonstrate that PGRN mutant neurons exhibit decreased nuclear TDP-43 and increased insoluble TDP-43, as well as enlarged electron-dense vesicles, lipofuscin accumulation, fingerprint like profiles and granular osmiophilic deposits, suggesting that both FTD and NCL like pathology are present in PGRN patient neurons as compared to isogenic controls. PGRN mutant neurons also show impaired lysosomal proteolysis and decreased activity of the lysosomal enzyme cathepsin D. Furthermore, we find that PGRN interacts with cathepsin D, and that PGRN increases the activity of cathepsin D but not cathepsins B or L. Finally, we show that granulin E, a cleavage product of PGRN, is sufficient to increase cathepsin D activity. This functional relationship between PGRN and cathepsin D provides a possible explanation for overlapping NCL-like pathology observed in patients with mutations in PGRN or CTSD, the gene encoding cathepsin D. Together, our work identifies PGRN as an activator of lysosomal cathepsin D activity, and suggests that decreased cathepsin D activity due to loss of PGRN contributes to both FTD and NCL pathology in a dose-dependent manner. PMID- 29036615 TI - Monitoring of cerebral oximetry during head-up tilt test in adults with history of syncope and orthostatic intolerance. AB - Aims : We applied near-infrared-spectroscopy (NIRS) to measure absolute frontal cerebral tissue oxygen saturation (SctO2) during head-up tilt test (HUT) in patients investigated for unexplained syncope. Methods and results : Synchronized non-invasive beat-to-beat haemodynamic monitoring, ECG, SctO2 (NIRS; normal range: 60-80%), and peripheral oxygen saturation (left hand, SpO2) were applied during HUT in a random sample of patients with unexplained syncope. Tracings of 54 patients (mean-age: 55 +/- 19 years, 39% male) with negative HUT, vasovagal syncope (VVS), or orthostatic hypotension (OH) were analysed. In 44 patients HUT was diagnostic, in 10 HUT was negative. Thirty-one experienced VVS. Of these, 6 had spontaneous and 25 nitroglycerin-induced syncope. Thirteen patients had orthostatic hypotension (OH). Although there was no significant change in mean arterial pressure from baseline to 1 min before syncope or end of passive HUT phase (-1.4 +/- 13.9 mmHg; P = 0.45), there was a significant fall in SctO2 during the same period (-3.2 +/- 3.2%; P <= 0.001). Among patients who experienced syncope, a decrease in SctO2 from 71 +/- 5% at baseline to 53 +/- 9% (P < 0.001) at syncope was observed. During HUT, there was a significant difference in delta SctO2 between spontaneous VVS (-4.5 +/- 3.0%) and negative HUT (-1.3 +/- 1.9%; P = 0.021), but not between spontaneous VVS and OH (-5.4 +/- 4.2%; P = 0.65). In spontaneous VVS, progressive decrease of SctO2 was independent of mean arterial pressure decrease (P = 0.22). Conclusions: Progressive decrease in cerebral tissue oxygenation independent of mean-arterial pressure may precede spontaneous vasovagal reflex during tilt. Patients experience syncope when SctO2 falls below 60%. These data confirm clinical utility of absolute cerebral oximetry monitoring for syncope investigation. We applied NIRS to measure frontal cerebral tissue oxygen saturation (SctO2) during head-up tilt test (HUT) in patients with unexplained syncope. In 44 of 54 patients, HUT was diagnostic. In patients with syncope, a significant SctO2 decrease was observed. Different patterns of SctO2 can be detected. PMID- 29036616 TI - DeepLoc: prediction of protein subcellular localization using deep learning. AB - Motivation: The prediction of eukaryotic protein subcellular localization is a well-studied topic in bioinformatics due to its relevance in proteomics research. Many machine learning methods have been successfully applied in this task, but in most of them, predictions rely on annotation of homologues from knowledge databases. For novel proteins where no annotated homologues exist, and for predicting the effects of sequence variants, it is desirable to have methods for predicting protein properties from sequence information only. Results: Here, we present a prediction algorithm using deep neural networks to predict protein subcellular localization relying only on sequence information. At its core, the prediction model uses a recurrent neural network that processes the entire protein sequence and an attention mechanism identifying protein regions important for the subcellular localization. The model was trained and tested on a protein dataset extracted from one of the latest UniProt releases, in which experimentally annotated proteins follow more stringent criteria than previously. We demonstrate that our model achieves a good accuracy (78% for 10 categories; 92% for membrane-bound or soluble), outperforming current state-of-the-art algorithms, including those relying on homology information. Availability and implementation: The method is available as a web server at http://www.cbs.dtu.dk/services/DeepLoc. Example code is available at https://github.com/JJAlmagro/subcellular_localization. The dataset is available at http://www.cbs.dtu.dk/services/DeepLoc/data.php. Contact: jjalma@dtu.dk. PMID- 29036618 TI - Unsuccessful treatment in pulmonary tuberculosis: factors and a consequent predictive model. AB - Background: Cure is particularly valuable in pulmonary cases (PTB), as unsuccessful treatment fuels incidence and resistance to antibiotics. This study aims to identify individual factors of PTB unsuccessful treatment in Portugal and to develop a consequent predictive model. Methods: Using the Portuguese TB surveillance database (SVIG-TB), PTB cases older than 15 years notified from 2000 to 2012 in Continental Portugal were analyzed. Unsuccessful treatment included the WHO categories (failure, default, death and transferred out). Based on a literature review, predictors involved sociodemographic, behavioral, disease related and treatment-related factors. Binary logistic regression was used to estimate unsuccessful treatment factors and to develop the predictive risk model. Results: The unsuccessful outcome rate in PTB patients was of 11.9%. The predictive model included the following factors: TB/HIV co-infection (OR 4.93), age over 64 years (OR 4.37), IV drugs abuse (OR 2.29), other diseases (excluding HIV and Diabetes, OR 2.09) and retreatment (OR 1.44), displaying a rather good validity. Conclusion: The overall treatment unsuccessful treatment rate in PTB patients complies with the 85% WHO success threshold. The predictive model of unsuccessful treatment proved well. Nomogram representation allows an early, intuitive identification of PTB patients at increased risk. The model is liable to widespread use as a prognostic tool. PMID- 29036617 TI - Arrayed mutant haploid embryonic stem cell libraries facilitate phenotype-driven genetic screens. AB - Forward genetic screens using mammalian embryonic stem (ES) cells have identified genes required for numerous cellular processes. However, loss-of-function screens are more difficult to conduct in diploid cells because, in most cases, both alleles of a gene must be mutated to exhibit a phenotype. Recently, mammalian haploid ES cell lines were successfully established and applied to several recessive genetic screens. However, all these screens were performed in mixed pools of mutant cells and were mainly based on positive selection. In general, negative screening is not easy to apply to these mixed pools, although quantitative deep sequencing of mutagen insertions can help to identify some 'missing' mutants. Moreover, the interplay between different mutant cells in the mixed pools would interfere with the readout of the screens. Here, we developed a method for rapidly generating arrayed haploid mutant libraries in which the proportion of homozygous mutant clones can reach 85%. After screening thousands of individual mutant clones, we identified a number of novel factors required for the onset of differentiation in ES cells. A negative screen was also conducted to discover mutations conferring cells with increased sensitivity to DNA double strand breaks induced by the drug doxorubicin. Both of these screens illustrate the value of this system. PMID- 29036620 TI - FE Controls the Transcription of Downstream Flowering Regulators Through Two Distinct Mechanisms in Leaf Phloem Companion Cells. AB - In the facultative long-day plant Arabidopsis thaliana, FLOWERING LOCUS T (FT), encoding the mobile hormone florigen, plays an essential role in modulating the optimal timing of flowering to ensure reproductive success. Under inductive long day conditions, the transcription of FT is activated by the CONSTANS (CO)/NUCLEAR FACTOR-Y (NF-Y) protein complex in leaf phloem companion cells. FT is transported to the shoot apical meristem through interaction with florigen transporters, such as SODIUM POTASSIUM ROOT DEFECTIVE 1 (NaKR1). Some regulators involved in photoperiod-dependent FT function have been reported previously; however, the molecular mechanism that coordinates FT protein synthesis and transport efficiently needs to be investigated. The present study examined the role of an Myb-related transcription factor, FE, in the activation of FT gene transcription and FT protein transport. Expression analysis using FE-inducible systems and chromatin immunoprecipitation assays showed that FE directly bound to the FT and NaKR1 promoters and activated the transcription of downstream target genes. FE failed to activate FT expression without CO function, whereas FE-mediated NaKR1 induction was not affected by CO function. Taken together, our data indicate that FE regulates the transcription of FT and florigen transporter genes via different mechanisms. PMID- 29036619 TI - The effects of DNA supercoiling on G-quadruplex formation. AB - Guanine-rich DNAs can fold into four-stranded structures that contain stacks of G quartets. Bioinformatics studies have revealed that G-rich sequences with the potential to adopt these structures are unevenly distributed throughout genomes, and are especially found in gene promoter regions. With the exception of the single-stranded telomeric DNA, all genomic G-rich sequences will always be present along with their C-rich complements, and quadruplex formation will be in competition with the corresponding Watson-Crick duplex. Quadruplex formation must therefore first require local dissociation (melting) of the duplex strands. Since negative supercoiling is known to facilitate the formation of alternative DNA structures, we have investigated G-quadruplex formation within negatively supercoiled DNA plasmids. Plasmids containing multiple copies of (G3T)n and (G3T4)n repeats, were probed with dimethylsulphate, potassium permanganate and S1 nuclease. While dimethylsulphate footprinting revealed some evidence for G quadruplex formation in (G3T)n sequences, this was not affected by supercoiling, and permanganate failed to detect exposed thymines in the loop regions. (G3T4)n sequences were not protected from DMS and showed no reaction with permanganate. Similarly, both S1 nuclease and 2D gel electrophoresis of DNA topoisomers did not detect any supercoil-dependent structural transitions. These results suggest that negative supercoiling alone is not sufficient to drive G-quadruplex formation. PMID- 29036621 TI - Comparisons of the clinical outcomes of different postoperative radiation strategies for treatment of head and neck squamous cell carcinoma. AB - Purpose: We previously reported unfavorable locoregional control with limited field postoperative radiotherapy for head and neck squamous cell carcinoma patients and thus revised the strategy to cover the whole neck. Head and neck squamous cell carcinoma Patients' outcomes were retrospectively analyzed to compare the efficacy of two treatments. Material and methods: Before 2010, the clinical target volume covered the tumor bed and/or involved the neck region. Since 2011, whole-neck irradiation was planned. Univariate analysis, multivariate analysis, and propensity score matching were performed. The study included 275 patients: 186 received limited field postoperative radiotherapy and 89 received whole-neck postoperative radiotherapy. The median follow-up time for the entire cohort was 40.8 months. Results: In univariate analysis, the radiation strategy had no significant effect on overall survival and progression-free survival. In multivariate analysis, whole-neck postoperative radiotherapy was a favorable factor for overall survival, progression-free survival, and locoregional control. Propensity score matching resulted in a cohort comprising 118 well-matched patients evenly divided between the limited field postoperative radiotherapy and whole-neck postoperative radiotherapy groups. Whole-neck postoperative radiotherapy group achieved a significantly better 2-year overall survival (56.4% vs. 78.1%; P = 0.003), 2-year progression-free survival (34.7% vs. 59.8%; P = 0.009), and 2-year locoregional control (54.4% vs. 83.2%; P < 0.001). The limited field postoperative radiotherapy group developed significantly more locoregional recurrences both in-field (35.2% vs. 15.1%, P = 0.003) and out-of-field (25.0% vs. 0%, P < 0.001) in the matched-pair cohort. Conclusion: Whole-neck postoperative radiotherapy is a more appropriate choice than limited field postoperative radiotherapy to improve overall survival, progression-free survival and locoregional control. PMID- 29036622 TI - COMPARISON BETWEEN PADC AND FNTD NEUTRON DETECTOR SYSTEMS IN BLIND TESTS. AB - The objective of this study was to compare a neutron dosimetry system based on polyallyl diglycol carbonate (PADC) detectors with a new system based on Al2O3:C,Mg fluorescence nuclear track detectors (FNTD). The irradiations, performed as part of an intercomparison organized by the Physikalisch-Technische Bundesanstalt (PTB), Germany, were on a PMMA phantom with 252Cf or 241Am-Be source, usually with the phantom surface perpendicular to the radiation beam (0 degrees angle), and with Hp(10) values between 0.3 and 7 mSv. One 252Cf irradiation was performed at 30 degrees angle, and one with an additional 1 mSv gamma irradiation. The results showed an agreement between the two techniques with an average and maximum difference between PADCs and FNTDs of 1.5 and 22%, respectively, if one compares only cases of doses >1 mSv. For one of the irradiation conditions with dose of 0.9 mSv, use of the incorrect calibration factor for the FNTD (252Cf instead of 241Am-Be) led to reported values ~*2 larger than the given doses, due to low statistics in the determination of the ratio between 6Li-doped glass and polyethylene neutron converters. Although the FNTD track analysis algorithm may need further development, the results presented here demonstrate the feasibility of the FNTD technology and indicate areas requiring improvements. PMID- 29036623 TI - Predictors of mortality in high-risk patients with QT prolongation in a community hospital. AB - Aims: To determine predictors of mortality in patients with corrected QT interval (QTc) >= 500 ms in a community hospital. Methods and results: In this retrospective observational study, we searched the electrocardiogram (ECG) database at Telemark Hospital Trust, Norway, from January 2004 to December 2014. Medication, electrolyte abnormalities, and medical conditions known to prolong the QT interval were recorded. From the medical records, we assessed whether the prolonged QTc was noted by the health care providers. We identified 1531 patients (age = 70 +/- 15 years, 59% female) with an ECG with QTc >= 500 ms. All-cause mortality during 952 (range 0-4161) days of follow-up was 50% (n = 765/1531). Main predictors of mortality were aborted cardiac arrest [hazard ratio (HR) 2.40, 95% confidence interval (CI) 1.44-4.01; P = 0.001], cerebral stroke/head trauma (HR 2.28, 95% CI 1.70-3.05; P < 0.001), and heart failure (HR 1.74, 95% CI 1.43 2.12; P< 0.001). Females with prolonged QTc had better survival compared with males (P = 0.006). We constructed a risk-weighted QTc mortality score. QT prolongation was acknowledged in the medical records in 12% of the cases. Conclusions: QTc >= 500 ms was associated with high all-cause mortality with increased mortality in males compared with females. A new QTc mortality score was constructed to predict mortality. Only a minority of cases with prolonged QTc >= 500 ms were acknowledged in the medical records. PMID- 29036625 TI - OsPht1;8, a phosphate transporter, is involved in auxin and phosphate starvation response in rice. AB - The responses of plants to auxin and phosphate (Pi) starvation are closely linked. However, the underlying mechanisms connecting the Pi starvation (-Pi) responses to auxin are largely unclear. Here, we show that OsPht1;8 (OsPT8), a phosphate transporter, functions in both the auxin and -Pi responses in rice (Oryza sativa L.) and tobacco (Nicotiana tabacum). The overexpression of OsPT8 (OsPT8-Oe) led to the loss of sensitivity to auxin and -Pi in adventitious roots, lateral roots, and root hairs in rice. The expression levels of OsPT8 and pOsPT8::GUS staining in roots, root-shoot junctions and leaves of rice were induced by IAA treatments. The number of young lateral roots in the OsPT8-Oe transgenic rice, which had higher auxin concentrations, was distinctly more than that in the wild-type, possibly as a result of increased expression of auxin related genes under normal Pi condition. Moreover, tobacco overexpressing OsPT8 had a similar root phenotype to OsPT8-Oe rice. These data reveal a novel biological function of OsPT8 in the cross-talk between Pi and auxin signaling, and provide new evidence for the linkage between auxin and -Pi responses. PMID- 29036624 TI - Genomic Signatures of Sexual Conflict. AB - Sexual conflict is a specific class of intergenomic conflict that describes the reciprocal sex-specific fitness costs generated by antagonistic reproductive interactions. The potential for sexual conflict is an inherent property of having a shared genome between the sexes and, therefore, is an extreme form of an environment-dependent fitness effect. In this way, many of the predictions from environment-dependent selection can be used to formulate expected patterns of genome evolution under sexual conflict. However, the pleiotropic and transmission constraints inherent to having alleles move across sex-specific backgrounds from generation to generation further modulate the anticipated signatures of selection. We outline methods for detecting candidate sexual conflict loci both across and within populations. Additionally, we consider the ability of genome scans to identify sexually antagonistic loci by modeling allele frequency changes within males and females due to a single generation of selection. In particular, we highlight the need to integrate genotype, phenotype, and functional information to truly distinguish sexual conflict from other forms of sexual differentiation. PMID- 29036628 TI - Social marketing targeting Indigenous peoples: a systematic review. PMID- 29036627 TI - Using uncertainty to link and rank evidence from biomedical literature for model curation. AB - Motivation: In recent years, there has been great progress in the field of automated curation of biomedical networks and models, aided by text mining methods that provide evidence from literature. Such methods must not only extract snippets of text that relate to model interactions, but also be able to contextualize the evidence and provide additional confidence scores for the interaction in question. Although various approaches calculating confidence scores have focused primarily on the quality of the extracted information, there has been little work on exploring the textual uncertainty conveyed by the author. Despite textual uncertainty being acknowledged in biomedical text mining as an attribute of text mined interactions (events), it is significantly understudied as a means of providing a confidence measure for interactions in pathways or other biomedical models. In this work, we focus on improving identification of textual uncertainty for events and explore how it can be used as an additional measure of confidence for biomedical models. Results: We present a novel method for extracting uncertainty from the literature using a hybrid approach that combines rule induction and machine learning. Variations of this hybrid approach are then discussed, alongside their advantages and disadvantages. We use subjective logic theory to combine multiple uncertainty values extracted from different sources for the same interaction. Our approach achieves F-scores of 0.76 and 0.88 based on the BioNLP-ST and Genia-MK corpora, respectively, making considerable improvements over previously published work. Moreover, we evaluate our proposed system on pathways related to two different areas, namely leukemia and melanoma cancer research. Availability and implementation: The leukemia pathway model used is available in Pathway Studio while the Ras model is available via PathwayCommons. Online demonstration of the uncertainty extraction system is available for research purposes at http://argo.nactem.ac.uk/test. The related code is available on https://github.com/c-zrv/uncertainty_components.git. Details on the above are available in the Supplementary Material. Contact: sophia.ananiadou@manchester.ac.uk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036626 TI - Detection of an Underlying 22q11.2 Duplication in a Female Neonate With Trisomy 18. AB - Current guidelines indicate that in patients with developmental disabilities or congenital anomalies, chromosomal microarray (CMA) is a first-tier diagnostic test. However, for patients with obvious chromosomal syndromes such as trisomy 13, 18, and 21, G-banded karyotyping is still recommended over CMA for establishing a diagnosis. In the case presented herein, a female neonate was suspected of having trisomy 18 based on pre- and postnatal evaluations. Karyotyping was requested but not performed due to insufficient cell growth; Interphase fluorescence in situ hybridization (i-FISH) found an extra copy of chromosome 18. CMA analysis uncovered gain of chromosome 18 and an additional duplication in chromosome 22q11.2, which went undetected with FISH. Our patient died within 40 hours after birth, but it is expected that patients with recognizable chromosomal syndromes could benefit from the discovery of coexisting copy number variations (CNVs) using CMA. This case shows that CMA can be a useful test for patients with recognizable chromosomal syndromes because of the potential benefits for patients and their families when co-existing CNVs are found. PMID- 29036629 TI - Nanotechnology: A Promising New Paradigm for the Control of Pain. AB - Objective: The objective of this article is to critically review both preclinical and clinical studies that focus on the use of nanotechnology for both acute and chronic pain management, surveying both diagnostic and therapeutic applications. The article also provides information on nanotechnology for pain practitioners, so that they may better understand how this technology works and how it may be applied to their day-to-day clinical practice. Study Design: Narrative review. Methods: The Pubmed NCBI and EMBASE databases were utilized to review published reports of in vivo and clinical studies that focus on using nanotechnology for pain management applications in both the acute and chronic pain settings. Results: Articles were screened by title, abstract, and full article review. They were then analyzed by specific clinical indications, and appropriate data were presented based on a critical analysis of those articles. Conclusions: As the development of nanomedical applications in acute and chronic pain management continues, medical practitioners should consider their growing potential to enhance the care of patients who are consistently living with pain. Current barriers to implementation include manufacturing scale-up for commercial viability, long-term nanoparticle toxicity considerations, and high cost for successful passage through clinical trials. These challenges will need to be overcome with ongoing translational research efforts in collaboration with industry and government bodies such as the Food and Drug Administration (FDA). PMID- 29036631 TI - ID(H)entifying checkpoint inhibitor candidates among diffuse glioma. PMID- 29036630 TI - Resequencing Epithelial Sodium Channel Genes Identifies Rare Variants Associated With Blood Pressure Salt-Sensitivity: The GenSalt Study. AB - BACKGROUND: A resequencing study of renal epithelial sodium channel (ENaC) genes was conducted to identify rare variants associated with blood pressure (BP) salt sensitivity. METHODS: The Genetic Epidemiology Network of Salt-Sensitivity (GenSalt) study was conducted among 1,906 participants who underwent a 7-day low sodium followed by a 7-day high-sodium feeding-study. The 300 most salt-sensitive and 300 most salt-resistant GenSalt participants were selected for the resequencing study. Three ENaC genes (SCNN1A, SCNN1B, and SCNN1G) were resequenced using capillary-based sequencing methods. Traditional burden tests were utilized to examine association between rare variants and BP salt sensitivity. Associations of low-frequency and common variants were tested using single-marker analyses. RESULTS: Carriers of SCNN1A rare variants had a 0.52 [95% confidence interval (CI): 0.32-0.85] decreased odds of BP salt-sensitivity compared with noncarriers. Neither SCNN1B nor SCNN1G associated with salt sensitivity of BP in rare variant analyses (P = 0.65 and 0.48, respectively). In single-marker analyses, 3 independent common variants in SCNN1A, rs11614164, rs4764586, and rs3741914, associated with salt-sensitivity after Bonferroni correction (P = 4.4 * 10-4, 1.1 * 10-8, and 1.3 * 10-3). Each copy of the minor allele of rs4764586 was associated with a 1.36-fold (95% CI: 1.23-1.52) increased odds of salt-sensitivity, whereas each copy of the minor allele of rs11614164 and rs3741914 was associated with 0.68-fold (95% CI: 0.55-0.84) and 0.69-fold (95% CI: 0.54-0.86) decreased odds of salt-sensitivity, respectively. CONCLUSIONS: This study demonstrated for the first time a relationship between rare variants in the ENaC pathway and BP salt-sensitivity. Future replication and functional studies are needed to confirm the findings in this study. CLINICAL TRIAL REGISTRY: Trial Number NCT00721721. PMID- 29036634 TI - ULTRAFINE AEROSOL INFLUENCE ON THE SAMPLING BY CASCADE IMPACTOR. AB - Cascade impactors based on inertial deposition of aerosols are widely used to determine the size distribution of radioactive aerosols. However, there are situations where radioactive aerosols are represented by particles with a diameter of 1-5 nm. In this case, ultrafine aerosols can be deposited on impactor cascades by diffusion mechanism. The influence of ultrafine aerosols (1-5 nm) on the response of three different types of cascade impactors was studied. It was shown that the diffusion deposition of ultrafine aerosols can distort the response of the cascade impactor. The influence of diffusion deposition of ultrafine aerosols can be considerably removed by the use of mesh screens or diffusion battery installed before cascade impactor during the aerosol sampling. PMID- 29036633 TI - RNA sequencing of Brassica napus reveals cellular redox control of Sclerotinia infection. AB - Brassica napus is one of the world's most valuable oilseeds and is under constant pressure by the necrotrophic fungal pathogen, Sclerotinia sclerotiorum, the causal agent of white stem rot. Despite our growing understanding of host pathogen interactions at the molecular level, we have yet to fully understand the biological processes and underlying gene regulatory networks responsible for determining disease outcomes. Using global RNA sequencing, we profiled gene activity at the first point of infection on the leaf surface 24 hours after pathogen exposure in susceptible (B. napus cv. Westar) and tolerant (B. napus cv. Zhongyou 821) plants. We identified a family of ethylene response factors that may contribute to host tolerance to S. sclerotiorum by activating genes associated with fungal recognition, subcellular organization, and redox homeostasis. Physiological investigation of redox homeostasis was further studied by quantifying cellular levels of the glutathione and ascorbate redox pathway and the cycling enzymes associated with host tolerance to S. sclerotiorum. Functional characterization of an Arabidopsis redox mutant challenged with the fungus provides compelling evidence into the role of the ascorbate-glutathione redox hub in the maintenance and enhancement of plant tolerance against fungal pathogens. PMID- 29036632 TI - Mapping Compulsivity in the DSM-5 Obsessive Compulsive and Related Disorders: Cognitive Domains, Neural Circuitry, and Treatment. AB - Compulsions are repetitive, stereotyped thoughts and behaviors designed to reduce harm. Growing evidence suggests that the neurocognitive mechanisms mediating behavioral inhibition (motor inhibition, cognitive inflexibility) reversal learning and habit formation (shift from goal-directed to habitual responding) contribute toward compulsive activity in a broad range of disorders. In obsessive compulsive disorder, distributed network perturbation appears focused around the prefrontal cortex, caudate, putamen, and associated neuro-circuitry. Obsessive compulsive disorder-related attentional set-shifting deficits correlated with reduced resting state functional connectivity between the dorsal caudate and the ventrolateral prefrontal cortex on neuroimaging. In contrast, experimental provocation of obsessive compulsive disorder symptoms reduced neural activation in brain regions implicated in goal-directed behavioral control (ventromedial prefrontal cortex, caudate) with concordant increased activation in regions implicated in habit learning (presupplementary motor area, putamen). The ventromedial prefrontal cortex plays a multifaceted role, integrating affective evaluative processes, flexible behavior, and fear learning. Findings from a neuroimaging study of Pavlovian fear reversal, in which obsessive compulsive disorder patients failed to flexibly update fear responses despite normal initial fear conditioning, suggest there is an absence of ventromedial prefrontal cortex safety signaling in obsessive compulsive disorder, which potentially undermines explicit contingency knowledge and may help to explain the link between cognitive inflexibility, fear, and anxiety processing in compulsive disorders such as obsessive compulsive disorder. PMID- 29036635 TI - Barbara Fish and a Short History of the Neurodevelopmental Hypothesis of Schizophrenia. AB - The neurodevelopmental hypothesis of schizophrenia has become a paradigm broadly accepted in today's research in schizophrenia and its spectrum. This article traces the historical development of the neurodevelopmental hypothesis of schizophrenia up until the time of its explicit formulation in 1987, by Weinberger and by Murray and Lewis, with a main focus on the seminal contribution of Barbara Fish to its conception and elaboration. PMID- 29036637 TI - Examining the contribution of cell wall polysaccharides to the mechanical properties of apple parenchyma tissue using exogenous enzymes. AB - The viscoelastic mechanical properties of water-rich plant tissues are fundamental for many aspects of organ physiology and plant functioning. These properties are determined partly by the water in cellular vacuole and partly by the mechanical properties of the cell wall, the latter varying according to the composition and organization of its polysaccharides. In this study, relationships between the viscoelastic properties of apple cortex parenchyma tissue and cell wall pectin, hemicelluloses, and cellulose structures were studied by infusing the tissue with selected sets of purified enzymes in a controlled osmoticum. The results showed that tissue elasticity and viscosity were related, and controlled to variable extents by all the targeted polysaccharides. Among them, pectic homogalacturonan domains, crystalline cellulose, and fucosylated xyloglucan were revealed as being of prime importance in determining the viscoelastic mechanical properties of apple cortex tissue. PMID- 29036639 TI - Avoiding phantasms. PMID- 29036636 TI - Genetic reduction of Nrf2 exacerbates cognitive deficits in a mouse model of Alzheimer's disease. AB - Aging is the major risk factor for several neurodegenerative diseases, including Alzheimer's disease (AD). However, the mechanisms by which aging contributes to neurodegeneration remain elusive. The nuclear factor (erythroid-derived 2)-like 2 (Nrf2) is a transcription factor that regulates expression of a vast number of genes by binding to the antioxidant response element. Nrf2 levels decrease as a function of age, and reduced Nrf2 levels have been reported in postmortem human brains and animal models of AD. Nevertheless, it is still unknown whether Nrf2 plays a role in the cognitive deficits associated with AD. To address this question, we used a genetic approach to remove the Nrf2 gene from APP/PS1 mice, a widely used animal model of AD. We found that the lack of Nrf2 significantly exacerbates cognitive deficits in APP/PS1, without altering gross motor function. Specifically, we found an exacerbation of deficits in spatial learning and memory, as well as in working and associative memory. Different brain regions control these behavioral tests, indicating that the lack of Nrf2 has a global effect on brain function. The changes in cognition were linked to an increase in Abeta and interferon-gamma (IFNgamma) levels, and microgliosis. The changes in IFNgamma levels are noteworthy as previously published evidence indicates that IFNgamma can increase microglia activation and induce Abeta production. Our data suggest a clear link between Nrf2 and AD-mediated cognitive decline and further strengthen the connection between Nrf2 and AD. PMID- 29036641 TI - Inverted V sign: subacute combined degeneration of the spinal cord. PMID- 29036640 TI - Toxicokinetics of the Synthetic Cathinone alpha-Pyrrolidinohexanophenone. AB - Synthetic cathinones inhibit monoamine transporters, such as serotonin, norepinephrine, and dopamine transporters, and act on the central nervous system via increasing synaptic concentrations of monoamines. These compounds, which are highly addictive and potentially poisonous, are new psychoactive substances. In this study, we investigated the toxicokinetics of the synthetic cathinone, alpha pyrrolidinohexanophenone (alpha-PHP), and assessed the relationship between the toxicokinetics and the long-term clinical symptoms induced by alpha-PHP in a male patient. The patient (39 years old) suddenly started uttering inarticulate words and demonstrating incomprehensible behavior in his house, and was brought to the emergency department of Iwate Medical University hospital. He presented with psychotic symptoms, such as hallucinations and delusion; however, his vital signs were normal. The hallucinations and delusion improved by the third day of hospitalization. Toxicological analysis was performed using liquid chromatography tandem mass spectrometry with QuEChERS extraction. alpha-PHP was detected in his serum at a concentration of 175 ng/mL on his arrival at the hospital. His serum concentrations of alpha-PHP were serially determined and their natural logarithms were plotted against time after arrival. Although serum concentrations at early time points were lacking, the obtained curve was consistent with a two compartment model and indicated a serum elimination half-life of 37 h. The long lasting psychotic symptoms induced by synthetic cathinones appear to be correlated with their toxicokinetic characteristics, such as their long half lives. Finally, interpreting the toxicokinetics of synthetic cathinones may provide useful information for the toxicological assessment of new psychoactive substances for forensic and clinical purposes. PMID- 29036638 TI - The basic tilted helix bundle domain of the prolyl isomerase FKBP25 is a novel double-stranded RNA binding module. AB - Prolyl isomerases are defined by a catalytic domain that facilitates the cis trans interconversion of proline residues. In most cases, additional domains in these enzymes add important biological function, including recruitment to a set of protein substrates. Here, we report that the N-terminal basic tilted helix bundle (BTHB) domain of the human prolyl isomerase FKBP25 confers specific binding to double-stranded RNA (dsRNA). This binding is selective over DNA as well as single-stranded oligonucleotides. We find that FKBP25 RNA-association is required for its nucleolar localization and for the vast majority of its protein interactions, including those with 60S pre-ribosome and early ribosome biogenesis factors. An independent mobility of the BTHB and FKBP catalytic domains supports a model by which the N-terminus of FKBP25 is anchored to regions of dsRNA, whereas the FKBP domain is free to interact with neighboring proteins. Apart from the identification of the BTHB as a new dsRNA-binding module, this domain adds to the growing list of auxiliary functions used by prolyl isomerases to define their primary cellular targets. PMID- 29036643 TI - GLASS: assisted and standardized assessment of gene variations from Sanger sequence trace data. AB - Motivation: Sanger sequencing is still being employed for sequence variant detection by many laboratories, especially in a clinical setting. However, chromatogram interpretation often requires manual inspection and in some cases, considerable expertise. Results: We present GLASS, a web-based Sanger sequence trace viewer, editor, aligner and variant caller, built to assist with the assessment of variations in 'curated' or user-provided genes. Critically, it produces a standardized variant output as recommended by the Human Genome Variation Society. Availability and implementation: GLASS is freely available at http://bat.infspire.org/genomepd/glass/ with source code at https://github.com/infspiredBAT/GLASS. Contact: nikos.darzentas@gmail.com or malcikova.jitka@fnbrno.cz. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036642 TI - Striking a balance: regulation of transposable elements by Zfp281 and Mll2 in mouse embryonic stem cells. AB - Transposable elements (TEs) compose about 40% of the murine genome. Retrotransposition of active TEs such as LINE-1 (L1) tremendously impacts genetic diversification and genome stability. Therefore, transcription and transposition activities of retrotransposons are tightly controlled. Here, we show that the Kruppel-like zinc finger protein Zfp281 directly binds and suppresses a subset of retrotransposons, including the active young L1 repeat elements, in mouse embryonic stem (ES) cells. In addition, we find that Zfp281-regulated L1s are highly enriched for 5-hydroxymethylcytosine (5hmC) and H3K4me3. The COMPASS-like H3K4 methyltransferase Mll2 is the major H3K4me3 methylase at the Zfp281 regulated L1s and required for their proper expression. Our studies also reveal that Zfp281 functions partially through recruiting the L1 regulators DNA hydroxymethylase Tet1 and Sin3A, and restricting Mll2 at these active L1s, leading to their balanced expression. In summary, our data indicate an instrumental role of Zfp281 in suppressing the young active L1s in mouse ES cells. PMID- 29036645 TI - Genomic and Transcriptomic Compilation of Chloroplast Ionic Transporters of Physcomitrella patens. Study of NHAD Transporters in Na+ and K+ Homeostasis. AB - K+ is widely used by plant cells, whereas Na+ can easily reach toxic levels during plant growth, which typically occurs in saline environments; however, the effects and functions in the chloroplast have been only roughly estimated. Traditionally, the occurrence of ionic fluxes across the chloroplast envelope or the thylakoid membranes has been mostly deduced from physiological measurements or from knowledge of chloroplast metabolism. However, many of the proteins involved in these fluxes have not yet been characterized. Based on genomic and RNA sequencing (RNA-seq) analyses, we present a comprehensive compilation of genes encoding putative ion transporters and channels expressed in the chloroplasts of the moss Physcomitrella patens, with a special emphasis on those related to Na+ and K+ fluxes. Based on the functional characterization of nhad mutants, we also discuss the putative role of NHAD transporters in Na+ homeostasis and osmoregulation of this organelle and the putative contribution of chloroplasts to salt tolerance in this moss. We demonstrate that NaCl does not affect the chloroplast functionality in Physcomitrella despite significantly modifying expression of ionic transporters and cellular morphology, specifically the chloroplast ultrastructure, revealing a high starch accumulation. Additionally, NHAD transporters apparently do not play any essential roles in salt tolerance. PMID- 29036647 TI - INVESTIGATION OF SECONDARY MIXED RADIATION FIELD AROUND A MEDICAL LINEAR ACCELERATOR. AB - The aim of this study is to investigate secondary mixed radiation field around linac, as the first part of an overall assessment of out-of-field contribution of neutron dose for new advanced radiation dose delivery techniques. All measurements were performed around Varian Clinic 2300 C/D accelerator at Maria Sklodowska-Curie Memorial, Cancer Center and Institute of Oncology, Krakow Branch. Recombination chambers REM-2 and GW2 were used for recombination index of radiation quality Q4 determination (as an estimate of quality factor Q), measurement of total tissue dose Dt and calculation of gamma and neutron components to Dt. Estimation of Dt and Q4 allowed for the ambient dose equivalent H*(10) per monitor unit (MU) calculations. Measurements around linac were performed on the height of the middle of the linac's head (three positions) and on the height of the linac's isocentre (five positions). Estimation of secondary radiation level was carried out for seven different configurations of upper and lower jaws position and multileaf collimator set open or closed in each position. Study includes the use of two photon beam modes: 6 and 18 MV. Spatial distribution of ambient dose equivalent H*(10) per MU on the height of the linac's head and on the standard couch height for patients during the routine treatment, as well as relative contribution of gamma and neutron secondary radiation inside treatment room were evaluated. PMID- 29036644 TI - Roles of Female and Male Genotype in Post-Mating Responses in Drosophila melanogaster. AB - Mating induces a multitude of changes in female behavior, physiology, and gene expression. Interactions between female and male genotype lead to variation in post-mating phenotypes and reproductive success. So far, few female molecules responsible for these interactions have been identified. Here, we used Drosophila melanogaster from 5 geographically dispersed populations to investigate such female * male genotypic interactions at the female transcriptomic and phenotypic levels. Females from each line were singly-mated to males from the same 5 lines, for a total of 25 combinations. Reproductive output and refractoriness to re mating were assayed in females from the 25 mating combinations. Female * male genotypic interactions resulted in significant differences in these post-mating phenotypes. To assess whether female * male genotypic interactions affect the female post-mating transcriptome, next-generation RNA sequencing was performed on virgin and mated females at 5 to 6 h post-mating. Seventy-seven genes showed strong variation in mating-induced expression changes in a female * male genotype dependent manner. These genes were enriched for immune response and odorant binding functions, and for expression exclusively in the head. Strikingly, variation in post-mating transcript levels of a gene encoding a spermathecal endopeptidase was correlated with short-term egg production. The transcriptional variation found in specific functional classes of genes might be a read-out of female * male compatibility at a molecular level. Understanding the roles these genes play in the female post-mating response will be crucial to better understand the evolution of post-mating responses and related conflicts between the sexes. PMID- 29036648 TI - Coarse roots prevent declines in whole-tree non-structural carbohydrate pools during drought in an isohydric and an anisohydric species. AB - Predicted increases in the frequency and severity of droughts have led to a renewed focus on how plants physiologically adjust to low water availability. A popular framework for understanding plant responses to drought characterizes species along a spectrum from isohydry to anisohydry based on their regulation of gas exchange and leaf water potential under drying conditions. One prediction that arises from this theory is that plant drought responses may hinge, in part, on their usage of non-structural carbohydrate (NSC) pools. For example, trees that respond to drought by closing stomates (i.e., isohydric) are predicted to deplete NSC reserves to maintain metabolism, whereas plants that keep stomata open during water stress (i.e., anisohydric), may show little change or even increases in NSC concentration. However, empirical tests of this theory largely rely on aboveground measurements of NSC, ignoring the potentially conflicting responses of root NSC pools. We sought to test these predictions by subjecting potted saplings of Quercus alba L. (an anisohydric species) and Liriodendron tulipifera L. (an isohydric species) to a 6 week experimental drought. We found that stem NSC concentrations were depleted in the isohydric L. tulipifera but maintained in the anisohydric Q. alba-as predicted. However, when scaled to whole plant NSC content, the drought-induced decreases in stem NSCs in L. tulipifera were offset by increases in root NSCs (especially soluble sugars), resulting in no net change to whole-plant NSC content. Similarly, root sugars increased in Q. alba in response to drought. This increase was concurrent with declines in growth, suggesting a potential trade-off between allocation of photoassimilates to root sugars vs biomass during drought. Collectively, our results suggest that the responses of NSC in coarse roots can differ from stems, and indicate a prominent role of coarse roots in mitigating drought-induced declines in whole tree NSC pools. PMID- 29036646 TI - De novo, deleterious sequence variants that alter the transcriptional activity of the homeoprotein PBX1 are associated with intellectual disability and pleiotropic developmental defects. AB - We present eight patients with de novo, deleterious sequence variants in the PBX1 gene. PBX1 encodes a three amino acid loop extension (TALE) homeodomain transcription factor that forms multimeric complexes with TALE and HOX proteins to regulate target gene transcription during development. As previously reported, Pbx1 homozygous mutant mice (Pbx1-/-) develop malformations and hypoplasia or aplasia of multiple organs, including the craniofacial skeleton, ear, branchial arches, heart, lungs, diaphragm, gut, kidneys, and gonads. Clinical findings similar to those in Pbx mutant mice were observed in all patients with varying expressivity and severity, including external ear anomalies, abnormal branchial arch derivatives, heart malformations, diaphragmatic hernia, renal hypoplasia and ambiguous genitalia. All patients but one had developmental delays. Previously reported patients with congenital anomalies affecting the kidney and urinary tract exhibited deletions and loss of function variants in PBX1. The sequence variants in our cases included missense substitutions adjacent to the PBX1 homeodomain (p.Arg184Pro, p.Met224Lys, and p.Arg227Pro) or within the homeodomain (p.Arg234Pro, and p.Arg235Gln), whereas p.Ser262Glnfs*2, and p.Arg288* yielded truncated PBX1 proteins. Functional studies on five PBX1 sequence variants revealed perturbation of intrinsic, PBX-dependent transactivation ability and altered nuclear translocation, suggesting abnormal interactions between mutant PBX1 proteins and wild-type TALE or HOX cofactors. It is likely that the mutations directly affect the transcription of PBX1 target genes to impact embryonic development. We conclude that deleterious sequence variants in PBX1 cause intellectual disability and pleiotropic malformations resembling those in Pbx1 mutant mice, arguing for strong conservation of gene function between these two species. PMID- 29036649 TI - The SMAD3 transcription factor binds complex RNA structures with high affinity. AB - Several members of the SMAD family of transcription factors have been reported to bind RNA in addition to their canonical double-stranded DNA (dsDNA) ligand. RNA binding by SMAD has the potential to affect numerous cellular functions that involve RNA. However, the affinity and specificity of this RNA binding activity has not been well characterized, which limits the ability to validate and extrapolate functional implications of this activity. Here we perform quantitative binding experiments in vitro to determine the ligand requirements for RNA binding by SMAD3. We find that SMAD3 binds poorly to single- and double stranded RNA, regardless of sequence. However, SMAD3 binds RNA with large internal loops or bulges with high apparent affinity. This apparent affinity matches that for its canonical dsDNA ligand, suggesting a biological role for RNA binding by SMAD3. PMID- 29036651 TI - Aureobasidium pullulans-cultured fluid induces IL-18 production, leading to Th1 polarization during influenza A virus infection. AB - Several microbial molecules with pathogen-associated molecular patterns stimulate host innate immune responses. The innate immune system plays a crucial role in activating acquired immune response via cytokine production and antigen presentation. Previous studies have shown that Aureobasidium pullulans-cultured fluid (AP-CF), which contains beta-glucan, exhibits adjuvant activity and renders mice resistance to influenza A virus infection; however, the underlying mechanism remains elusive. In this study, we investigated the innate immune response to AP CF. We found that intraperitoneal administration of AP-CF increased the serum level of IL-18 and the number of splenic IFN-gamma producing CD4+ cells during influenza A virus infection. The adjuvant effect of AP-CF was distinct from that of alum, which is known to have the ability to stimulate a Th2 immune response. In addition, AP-CF injection barely increased the number of peritoneal neutrophils and inflammatory macrophages, whereas alum injection markedly increased the number of neutrophils and inflammatory macrophages, suggesting that AP-CF is a weak inducer of inflammation compared to alum. AP-CF induced IL-18 production by DC2.4 cells, a dendritic cell line, and by peritoneal exudate cells that include peritoneal macrophages. Collectively, our findings indicate that AP CF is an adjuvant that promotes the Th1 response during influenza A virus infection. PMID- 29036652 TI - Adapting detection sensitivity based on evidence of irregular sinus arrhythmia to improve atrial fibrillation detection in insertable cardiac monitors. AB - Aims: Intermittent change in p-wave discernibility during periods of ectopy and sinus arrhythmia is a cause of inappropriate atrial fibrillation (AF) detection in insertable cardiac monitors (ICM). To address this, we developed and validated an enhanced AF detection algorithm. Methods and results: Atrial fibrillation detection in Reveal LINQ ICM uses patterns of incoherence in RR intervals and absence of P-wave evidence over a 2-min period. The enhanced algorithm includes P wave evidence during RR irregularity as evidence of sinus arrhythmia or ectopy to adaptively optimize sensitivity for AF detection. The algorithm was developed and validated using Holter data from the XPECT and LINQ Usability studies which collected surface electrocardiogram (ECG) and continuous ICM ECG over a 24-48 h period. The algorithm detections were compared with Holter annotations, performed by multiple reviewers, to compute episode and duration detection performance. The validation dataset comprised of 3187 h of valid Holter and LINQ recordings from 138 patients, with true AF in 37 patients yielding 108 true AF episodes >=2-min and 449 h of AF. The enhanced algorithm reduced inappropriately detected episodes by 49% and duration by 66% with <1% loss in true episodes or duration. The algorithm correctly identified 98.9% of total AF duration and 99.8% of total sinus or non-AF rhythm duration. The algorithm detected 97.2% (99.7% per-patient average) of all AF episodes >=2-min, and 84.9% (95.3% per-patient average) of detected episodes involved AF. Conclusion: An enhancement that adapts sensitivity for AF detection reduced inappropriately detected episodes and duration with minimal reduction in sensitivity. PMID- 29036650 TI - Characteristic arrangement of nucleosomes is predictive of chromatin interactions at kilobase resolution. AB - High-throughput chromosome conformation capture (3C) technologies, such as Hi-C, have made it possible to survey 3D genome structure. However, obtaining 3D profiles at kilobase resolution at low cost remains a major challenge. Therefore, we herein present an algorithm for precise identification of chromatin interaction sites at kilobase resolution from MNase-seq data, termed chromatin interaction site detector (CISD), and a CISD-based chromatin loop predictor (CISD_loop) that predicts chromatin-chromatin interactions (CCIs) from low resolution Hi-C data. We show that the predictions of CISD and CISD_loop overlap closely with chromatin interaction analysis by paired-end tag sequencing (ChIA PET) anchors and loops, respectively. The validity of CISD/CISD_loop was further supported by a 3C assay at about 5 kb resolution. Finally, we demonstrate that only modest amounts of MNase-seq and Hi-C data are sufficient to achieve ultrahigh resolution CCI maps. Our results suggest that CCIs may result in characteristic nucleosomes arrangement patterns flanking the interaction sites, and our algorithms may facilitate precise and systematic investigations of CCIs on a larger scale than hitherto have been possible. PMID- 29036653 TI - miRCarta: a central repository for collecting miRNA candidates. AB - The continuous increase of available biological data as consequence of modern high-throughput technologies poses new challenges for analysis techniques and database applications. Especially for miRNAs, one class of small non-coding RNAs, many algorithms have been developed to predict new candidates from next generation sequencing data. While the amount of publications describing novel miRNA candidates keeps steadily increasing, the current gold standard database for miRNAs - miRBase - has not been updated since June 2014. As a result, publications describing new miRNA candidates in the last three to five years might have a substantial overlap of candidates without noticing. With miRCarta we implemented a database to collect novel miRNA candidates and augment the information provided by miRBase. In the first stage, miRCarta is thought to be a highly sensitive collection of potential miRNA candidates with a high degree of analysis functionality, annotations and details on each miRNA. We added-besides the full content of the miRBase-12,857 human miRNA precursors to miRCarta. Users can match their own predictions to the entries of miRCarta to reduce potential redundancies in their studies. miRCarta provides the most comprehensive collection of human miRNAs and miRNA candidates to form a basis for further refinement and validation studies. The database is freely accessible at https://mircarta.cs.uni-saarland.de/. PMID- 29036654 TI - Detection of expanded RNA repeats using thermostable group II intron reverse transcriptase. AB - Cellular accumulation of repetitive RNA occurs in several dominantly-inherited genetic disorders. Expanded CUG, CCUG or GGGGCC repeats are expressed in myotonic dystrophy type 1 (DM1), myotonic dystrophy type 2 (DM2), or familial amyotrophic lateral sclerosis, respectively. Expanded repeat RNAs (ER-RNAs) exert a toxic gain-of-function and are prime therapeutic targets in these diseases. However, efforts to quantify ER-RNA levels or monitor knockdown are confounded by stable structure and heterogeneity of the ER-RNA tract and background signal from non expanded repeats. Here, we used a thermostable group II intron reverse transcriptase (TGIRT-III) to convert ER-RNA to cDNA, followed by quantification on slot blots. We found that TGIRT-III was capable of reverse transcription (RTn) on enzymatically synthesized ER-RNAs. By using conditions that limit cDNA synthesis from off-target sequences, we observed hybridization signals on cDNA slot blots from DM1 and DM2 muscle samples but not from healthy controls. In transgenic mouse models of DM1 the cDNA slot blots accurately reflected the differences of ER-RNA expression across different transgenic lines, and showed therapeutic reductions in skeletal and cardiac muscle, accompanied by improvements of the DM1-associated splicing defects. TGIRT-III was also active on CCCCGG- and GGGGCC-repeats, suggesting that ER-RNA analysis is feasible for several repeat expansion disorders. PMID- 29036655 TI - MFIB: a repository of protein complexes with mutual folding induced by binding. AB - Motivation: It is commonplace that intrinsically disordered proteins (IDPs) are involved in crucial interactions in the living cell. However, the study of protein complexes formed exclusively by IDPs is hindered by the lack of data and such analyses remain sporadic. Systematic studies benefited other types of protein-protein interactions paving a way from basic science to therapeutics; yet these efforts require reliable datasets that are currently lacking for synergistically folding complexes of IDPs. Results: Here we present the Mutual Folding Induced by Binding (MFIB) database, the first systematic collection of complexes formed exclusively by IDPs. MFIB contains an order of magnitude more data than any dataset used in corresponding studies and offers a wide coverage of known IDP complexes in terms of flexibility, oligomeric composition and protein function from all domains of life. The included complexes are grouped using a hierarchical classification and are complemented with structural and functional annotations. MFIB is backed by a firm development team and infrastructure, and together with possible future community collaboration it will provide the cornerstone for structural and functional studies of IDP complexes. Availability and implementation: MFIB is freely accessible at http://mfib.enzim.ttk.mta.hu/. The MFIB application is hosted by Apache web server and was implemented in PHP. To enrich querying features and to enhance backend performance a MySQL database was also created. Contact: simon.istvan@ttk.mta.hu, meszaros.balint@ttk.mta.hu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29036656 TI - RELATIVE BIOLOGICAL EFFECTIVENESS OF NEUTRONS DERIVED FROM THE EXCESS RELATIVE RISK MODEL WITH THE ATOMIC BOMB SURVIVORS DATA MANAGED BY HIROSHIMA UNIVERSITY. AB - According to an analysis of the Life Span Study cohort data conducted by the Radiation Effects Research Foundation in Hiroshima and Nagasaki, the sex-averaged excess relative risk (ERR) of all solid cancers was 0.42 Gy-Eq-1. On the other hand, analysis of the atomic bomb survivors (ABS) cohort data at Hiroshima University indicated the ERR value was 0.28 Gy-Eq-1 in Hiroshima. In both cases, initial radiation doses were derived from the dosimetry system DS02, in which the relative biological effectiveness (RBE) of neutrons was assumed to be a constant value of 10. To clarify the validity of the RBE, the authors investigated the possibility of different contributions of neutrons by using the ABS. Although there were no statistically significant differences among the estimated value of RBE (=65) and the ordinal value (=10), the corresponding ERR decreased by 30%, which might affect the interpretation of radiation health assessments. PMID- 29036657 TI - Genomic Admixture Between Locally Adapted Populations of Arabidopsis thaliana (mouse ear cress): Evidence of Optimal Genetic Outcrossing Distance. AB - Admixture can break up divergent genetic architectures between populations, resulting in phenotypic novelty and generating raw material for environmental selection. The contribution of admixture to progeny trait variation and fitness varies based on the degree of genetic isolation between the parental populations, for which most studies have used geographic distance as a proxy. A novel approach is to estimate optimal crossing distance using the adaptive genetic distance between mates estimated from loci that contribute directly to local adaptation. Here, we aim to understand the effect of admixture on disrupting local adaptation of ecotypes of Arabidopsis thaliana separated along gradients of geographic, background, and locally adaptive genetic distances. We created experimental F1 hybrids between ecotypes that vary in geographic distance and used SNP data to estimate background (putatively neutral) and adaptive genetic distance. Hybrids were grown under controlled conditions, and fitness, growth, and phenology traits were measured. The different traits measured showed a clear effect of adaptive genetic distance, but not geographic distance. The earliest bolting hybrids were intermediate in the adaptive genetic distance between their parents, and also had higher biomass and fitness in terms of fruit and seed production. Our results suggest that disruption of locally adaptive genomic loci decreases the performance of offspring between distantly related parents, but that crosses between very closely related parents also reduce performance, likely through the expression of deleterious recessive alleles. We conclude that during admixture, selection may have to balance the consequences of disrupting local adaption while also avoiding inbreeding depression. PMID- 29036658 TI - Dying piece by piece: carbohydrate dynamics in aspen (Populus tremuloides) seedlings under severe carbon stress. AB - Carbon starvation as a mechanism of tree mortality is poorly understood. We exposed seedlings of aspen (Populus tremuloides) to complete darkness at 20 or 28 degrees C to identify minimum non-structural carbohydrate (NSC) concentrations at which trees die and to see if these levels vary between organs or with environmental conditions. We also first grew seedlings under different shade levels to determine if size affects survival time under darkness due to changes in initial NSC concentration and pool size and/or respiration rates. Darkness treatments caused a gradual dieback of tissues. Even after half the stem had died, substantial starch reserves were still present in the roots (1.3-3% dry weight), indicating limitations to carbohydrate remobilization and/or transport during starvation in the absence of water stress. Survival time decreased with increased temperature and with increasing initial shade level, which was associated with smaller biomass, higher respiration rates, and initially smaller NSC pool size. Dead tissues generally contained no starch, but sugar concentrations were substantially above zero and differed between organs (~2% in stems up to ~7.5% in leaves) and, at times, between temperature treatments and initial, pre-darkness shade treatments. Minimum root NSC concentrations were difficult to determine because dead roots quickly began to decompose, but we identify 5-6% sugar as a potential threshold for living roots. This variability may complicate efforts to identify critical NSC thresholds below which trees starve. PMID- 29036659 TI - Derivation of Occupational Thresholds of Toxicological Concern for Systemically Acting Noncarcinogenic Organic Chemicals. AB - Many substances in workplace do not have occupational exposure limits. The threshold of toxicological concern (TTC) principle is part of the hierarchy of approaches useful in occupational health risk assessment. The aim of this study was to derive occupational TTCs (OTTCs) reflecting the airborne concentrations below which no significant risk to workers would be anticipated. A reference dataset consisting of the 8-h threshold limit values-Time-Weighted Average for 280 organic substances was compiled. Each substance was classified into low (class I), intermediate (class II), or high (class III) hazard categories as per Cramer rules. For each chemical, n-octanol:water partition coefficient and vapor pressure along with the molecular weight were used to predict the blood:air partition coefficient. The blood:air partition coefficient along with data on water solubility and ventilation rate allowed the prediction of pulmonary retention factor and absorbed dose in workers. For each Cramer class, the distribution of the predicted doses was analyzed to identify the various percentile values corresponding to the OTTC. Accordingly, for Cramer classes I III, the OTTCs derived in this study correspond to 0.15, 0.0085, and 0.006 mmol/d, respectively, at the 10th percentile level, while these values were 1.5, 0.09 and 0.03 mmol/d at the 25th percentile level. The proposed OTTCs are not meant to replace the traditional occupational exposure limits, but can be used in data-poor situations along with exposure estimates to support screening level risk assessment and prioritization. PMID- 29036660 TI - MCNPX CALCULATIONS OF SPECIFIC ABSORBED FRACTIONS IN SOME ORGANS OF THE HUMAN BODY DUE TO APPLICATION OF 133Xe, 99mTc and 81mKr RADIONUCLIDES. AB - Monte Carlo simulations were performed to evaluate treatment doses with wide spread used radionuclides 133Xe, 99mTc and 81mKr. These different radionuclides are used in perfusion or ventilation examinations in nuclear medicine and as indicators for cardiovascular and pulmonary diseases. The objective of this work was to estimate the specific absorbed fractions in surrounding organs and tissues, when these radionuclides are incorporated in the lungs. For this purpose a voxel thorax model has been developed and compared with the ORNL phantom. All calculations and simulations were performed by means of the MCNP5/X code. PMID- 29036661 TI - The impact of the Brazilian Family Health Strategy and the conditional cash transfer on tuberculosis treatment outcomes in Rio de Janeiro: an individual level analysis of secondary data. AB - Background: Unsuccessful tuberculosis outcomes are frequent; bold policies are needed to end the tuberculosis (TB) epidemic to attain the third Sustainable Development Goal (SDG) by 2030. We examined the effect of the Family Health Strategy (FHS) and its interactions with the conditional cash transfer programme (CTP) on TB outcomes in Rio de Janeiro, Brazil. Methods: We performed individual based analyses of a database resulting from deterministic and probabilistic linkages of the TB information system, FHS registries and CTP payrolls. Patients >=15 years old treated with the standard RHZE regimen were included. The rates of successful outcomes were analysed according to coverage by FHS. Effects from the CTP and its interactions with the FHS were examined among the poorest. Results: FHS coverage increased the likelihood for successful outcomes by 14% (12-17%) among 13 482 new cases, and by 35% (25-47%) among 1880 retreatment cases. The CTP had an independent effect but no interaction with the FHS among the poorest. Conclusions: This is the first individual-based study to show a relevant protection of poor urban communities regarding patient-important health outcomes by the Brazilian FHS and CTP. These findings support strategies of universal health coverage, primary care strengthening and social protection to achieve a major SDG. PMID- 29036665 TI - Corrigendum. PMID- 29036663 TI - Metabolomics and Biochemical Approaches Link Salicylic Acid Biosynthesis to Cyanogenesis in Peach Plants. AB - Despite the long-established importance of salicylic acid (SA) in plant stress responses and other biological processes, its biosynthetic pathways have not been fully characterized. The proposed synthesis of SA originates from chorismate by two distinct pathways: the isochorismate and phenylalanine (Phe) ammonia-lyase (PAL) pathways. Cyanogenesis is the process related to the release of hydrogen cyanide from endogenous cyanogenic glycosides (CNglcs), and it has been linked to plant plasticity improvement. To date, however, no relationship has been suggested between the two pathways. In this work, by metabolomics and biochemical approaches (including the use of [13C]-labeled compounds), we provide strong evidences showing that CNglcs turnover is involved, at least in part, in SA biosynthesis in peach plants under control and stress conditions. The main CNglcs in peach are prunasin and amygdalin, with mandelonitrile (MD), synthesized from phenylalanine, controlling their turnover. In peach plants MD is the intermediary molecule of the suggested new SA biosynthetic pathway and CNglcs turnover, regulating the biosynthesis of both amygdalin and SA. MD-treated peach plants displayed increased SA levels via benzoic acid (one of the SA precursors within the PAL pathway). MD also provided partial protection against Plum pox virus infection in peach seedlings. Thus, we propose a third pathway, an alternative to the PAL pathway, for SA synthesis in peach plants. PMID- 29036664 TI - Trigger Point Diagnosis: At Last, the First Word on Consensus. PMID- 29036666 TI - Do Israeli health promoting schools contribute to students' healthy eating and physical activity habits? AB - The Israeli Health Promoting School Network (HPSN) is actively committed to enhancing a healthy lifestyle for the entire school population. This study aimed to explore the contribution of school participation in the HPSN and students' individual characteristics to healthy eating and physical activity habits among Israeli school children aged 10-12 years. A cross-sectional survey was conducted among 4166 students in grades 4-6 from 28 schools. The schools were selected from a sample of HPSN affiliated and non-HPSN schools. The contribution of individual characteristics (grade, gender and subjective self-reported health education activities at school) and school characteristics (school type, population group, deprivation score) to healthy eating and physical activity habits was analyzed using multi-level hierarchical models. Multi-level analysis indicated that student's individual characteristic was significantly associated with healthy eating and physical activity habits. The subjective self-reported health education received at school was statistically significant factor associated with students' health behaviors. The school's affiliation with the HPSN was not associated with higher healthy eating and physical activity scores after adjusting for individual factors. These findings suggest that Israeli HPSN schools do not contribute to children's health behaviors more than other schools. Therefore, health promoting activities in HPSN schools need to be improved to justify their recognition as members of the HPS network and to fulfill their mission. PMID- 29036662 TI - PARP2 controls double-strand break repair pathway choice by limiting 53BP1 accumulation at DNA damage sites and promoting end-resection. AB - Double strand breaks (DSBs) are one of the most toxic lesions to cells. DSB repair by the canonical non-homologous end-joining (C-EJ) pathway involves minor, if any, processing of the broken DNA-ends, whereas the initiation of DNA resection channels the broken-ends toward DNA repair pathways using various lengths of homology. Mechanisms that control the resection initiation are thus central to the regulation to the choice of DSB repair pathway. Therefore, understanding the mechanisms which regulate the initiation of DNA end-resection is of prime importance. Our findings reveal that poly(ADP-ribose) polymerase 2 (PARP2) is involved in DSBR pathway choice independently of its PAR synthesis activity. We show that PARP2 favors repair by homologous recombination (HR), single strand annealing (SSA) and alternative-end joining (A-EJ) rather than the C-EJ pathway and increases the deletion sizes at A-EJ junctions. We demonstrate that PARP2 specifically limits the accumulation of the resection barrier factor 53BP1 at DNA damage sites, allowing efficient CtIP-dependent DNA end-resection. Collectively, we have identified a new PARP2 function, independent of its PAR synthesis activity, which directs DSBs toward resection-dependent repair pathways. PMID- 29036667 TI - DISNOR: a disease network open resource. AB - DISNOR is a new resource that aims at exploiting the explosion of data on the identification of disease-associated genes to assemble inferred disease pathways. This may help dissecting the signaling events whose disruption causes the pathological phenotypes and may contribute to build a platform for precision medicine. To this end we combine the gene-disease association (GDA) data annotated in the DisGeNET resource with a new curation effort aimed at populating the SIGNOR database with causal interactions related to disease genes with the highest possible coverage. DISNOR can be freely accessed at http://DISNOR.uniroma2.it/ where >3700 disease-networks, linking ~2600 disease genes, can be explored. For each disease curated in DisGeNET, DISNOR links disease genes by manually annotated causal relationships and offers an intuitive visualization of the inferred 'patho-pathways' at different complexity levels. User-defined gene lists are also accepted in the query pipeline. In addition, for each list of query genes-either annotated in DisGeNET or user-defined-DISNOR performs a gene set enrichment analysis on KEGG-defined pathways or on the lists of proteins associated with the inferred disease pathways. This function offers additional information on disease-associated cellular pathways and disease similarity. PMID- 29036668 TI - Neurobiological Commonalities and Distinctions Among Three Major Psychiatric Diagnostic Categories: A Structural MRI Study. AB - BACKGROUND: Schizophrenia (SZ), bipolar disorder (BD), and major depressive disorder (MDD) are distinct diagnostic categories in current psychiatric nosology, yet there is increasing evidence for shared clinical and biological features in these disorders. No previous studies have examined brain structural features concurrently in these 3 disorders. The aim of this study was to identify the extent of shared and distinct brain alterations in SZ, BD, and MDD. We examined gray matter (GM) volume and white matter (WM) integrity in a total of 485 individuals (135 with SZ, 86 with BD, 108 with MDD, and 156 healthy controls [HC]) who underwent high-resolution structural magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) at a single site. RESULTS: Significant 4-group (SZ, BD, MDD, and HC groups) differences (P < .05, corrected) in GM volumes were found primarily in the paralimbic and heteromodal corticies. Post hoc analyses showed that the SZ, BD, and MDD groups shared GM volume decreases in 87.9% of the total regional volume with significant 4-group differences. Significant 4-group differences in WM integrity (P < .05 corrected) were found in callosal, limbic paralimbic-hetermodal, cortico-cortical, thalamocortical and cerebellar WM. Post hoc analyses revealed that the SZ and BD groups shared WM alterations in all regions, while WM alterations were not observed with MDD. CONCLUSIONS: Our findings of common alterations in SZ, BD, and MDD support the presence of core neurobiological disruptions in these disorders and suggest that neural structural distinctions between these disorders may be less prominent than initially postulated, particularly between SZ and BD. PMID- 29036670 TI - Catalytic and structural properties of pheophytinase, the phytol esterase involved in chlorophyll breakdown. AB - During leaf senescence and fruit ripening, chlorophyll is degraded in a multistep pathway into linear tetrapyrroles called phyllobilins. A key feature of chlorophyll breakdown is the removal of the hydrophobic phytol chain that renders phyllobilins water soluble, an important prerequisite for their ultimate storage in the vacuole of senescent cells. Chlorophyllases had been considered for more than a century to catalyze dephytylation in vivo; however, this was recently refuted. Instead, pheophytinase was discovered as a genuine in vivo phytol hydrolase. While chlorophyllase acts rather unspecifically towards different porphyrin substrates, pheophytinase was shown to specifically dephytylate pheophytin, namely Mg-free chlorophyll. The aim of this work was to elucidate in detail the biochemical and structural properties of pheophytinase. By testing different porphyrin substrates with recombinant pheophytinase from Arabidopsis thaliana we show that pheophytinase has high specificity for the acid moiety of the ester bond, namely the porphyrin ring, while the nature of the alcohol, namely the phytol chain in pheophytin, is irrelevant. In silico modelling of the 3-dimensional structure of pheophytinase and subsequent analysis of site-directed pheophytinase mutant forms allowed the identification of the serine, histidine, and aspartic acid residues that compose the catalytic triad, a classical feature of serine-type hydrolases to which both pheophytinase and chlorophyllase belong. Based on substantial structural differences in the models of Arabidopsis pheophytinase and chlorophyllase 1, we discuss potential differences in the catalytic properties of these two phytol hydrolases. PMID- 29036669 TI - Comparative genome and transcriptome analyses reveal adaptations to opportunistic infections in woody plant degrading pathogens of Botryosphaeriaceae. AB - Botryosphaeriaceae are an important fungal family that cause woody plant diseases worldwide. Recent studies have established a correlation between environmental factors and disease expression; however, less is known about factors that trigger these diseases. The current study reports on the 43.3 Mb de novo genome of Lasiodiplodia theobromae and five other genomes of Botryosphaeriaceae pathogens. Botryosphaeriaceous genomes showed an expansion of gene families associated with cell wall degradation, nutrient uptake, secondary metabolism and membrane transport, which contribute to adaptations for wood degradation. Transcriptome analysis revealed that genes involved in carbohydrate catabolism, pectin, starch and sucrose metabolism, and pentose and glucuronate interconversion pathways were induced during infection. Furthermore, genes in carbohydrate-binding modules, lysine motif domain and the glycosyl hydrolase gene families were induced by high temperature. Among these genes, overexpression of two selected putative lignocellulase genes led to increased virulence in the transformants. These results demonstrate the importance of high temperatures in opportunistic infections. This study also presents a set of Botryosphaeriaceae-specific effectors responsible for the identification of virulence-related pathogen associated molecular patterns and demonstrates their active participation in suppressing hypersensitive responses. Together, these findings significantly expand our understanding of the determinants of pathogenicity or virulence in Botryosphaeriaceae and provide new insights for developing management strategies against them. PMID- 29036671 TI - CRISPR/Cas9-mediated gene knockout is insensitive to target copy number but is dependent on guide RNA potency and Cas9/sgRNA threshold expression level. AB - CRISPR/Cas9 is a powerful gene editing tool for gene knockout studies and functional genomic screens. Successful implementation of CRISPR often requires Cas9 to elicit efficient target knockout in a population of cells. In this study, we investigated the role of several key factors, including variation in target copy number, inherent potency of sgRNA guides, and expression level of Cas9 and sgRNA, in determining CRISPR knockout efficiency. Using isogenic, clonal cell lines with variable copy numbers of an EGFP transgene, we discovered that CRISPR knockout is relatively insensitive to target copy number, but is highly dependent on the potency of the sgRNA guide sequence. Kinetic analysis revealed that most target mutation occurs between 5 and 10 days following Cas9/sgRNA transduction, while sgRNAs with different potencies differ by their knockout time course and by their terminal-phase knockout efficiency. We showed that prolonged, low level expression of Cas9 and sgRNA often fails to elicit target mutation, particularly if the potency of the sgRNA is also low. Our findings provide new insights into the behavior of CRISPR/Cas9 in mammalian cells that could be used for future improvement of this platform. PMID- 29036672 TI - Convergence and Divergence of Brain Network Dysfunction in Deficit and Non deficit Schizophrenia. AB - Deficit schizophrenia (DS), characterized by primary and enduring negative symptoms, has been considered as a pathophysiologically distinct schizophrenic subgroup. Neuroimaging characteristics of DS, especially functional brain network architecture, remain largely unknown. Resting-state functional magnetic resonance imaging and graph theory approaches were employed to investigate the topological organization of whole-brain functional networks of 114 male participants including 33 DS, 41 non-deficit schizophrenia (NDS) and 40 healthy controls (HCs). At the whole-brain level, both the NDS and DS group exhibited lower local efficiency (Eloc) than the HC group, implying the reduction of local specialization of brain information processing (reduced functional segregation). The DS, but not NDS group, exhibited enhanced parallel information transfer (enhanced functional integration) as determined by smaller characteristic path length (Lp) and higher global efficiency (Eglob). The Lp and Eglob presented significant correlations with Brief Psychiatric Rating Scale (BPRS) total score in the DS group. At the nodal level, both the NDS and DS groups showed higher functional connectivity in the inferior frontal gyrus and hippocampus, and lower connectivity in the visual areas and striatum than the controls. The DS group exhibited higher nodal connectivity in the right inferior temporal gyrus than the NDS and HC group. The diminished expression of Scale for the Assessment of Negative Symptoms (SANS) subfactors negatively correlated with nodal connectivity of right putamen, while asociality/amotivation positively correlated with right hippocampus across whole patients. We highlighted the convergence and divergence of brain functional network dysfunctions in patients with DS and NDS, which provides crucial insights into pathophysiological mechanisms of the 2 schizophrenic subtypes. PMID- 29036674 TI - Detecting and characterizing microRNAs of diverse genomic origins via miRvial. AB - MicroRNAs form an essential class of post-transcriptional gene regulator of eukaryotic species, and play critical parts in development and disease and stress responses. MicroRNAs may originate from various genomic loci, have structural characteristics, and appear in canonical or modified forms, making them subtle to detect and analyze. We present miRvial, a robust computational method and companion software package that supports parameter adjustment and visual inspection of candidate microRNAs. Extensive results comparing miRvial and six existing microRNA finding methods on six model organisms, Mus musculus, Drosophila melanogaste, Arabidopsis thaliana, Oryza sativa, Physcomitrella patens and Chlamydomonas reinhardtii, demonstrated the utility and rigor of miRvial in detecting novel microRNAs and characterizing features of microRNAs. Experimental validation of several novel microRNAs in C. reinhardtii that were predicted by miRvial but missed by the other methods illustrated the superior performance of miRvial over the existing methods. miRvial is open source and available at https://github.com/SystemsBiologyOfJianghanUniversity/miRvial. PMID- 29036675 TI - INDOOR RADON, THORON AND THEIR PROGENY CONCENTRATIONS IN HIGH THORON RURAL SERBIA ENVIRONMENTS. AB - This article deals with the variation of radon (Rn), thoron (Tn) and their progeny concentrations expressed in terms of equilibrium equivalent concentrations (EERC and EETC), in 40 houses, in four villages of Sokobanja municipality, Southern Serbia. Two types of passive detectors were used: (1) discriminative radon-thoron detector for simultaneous Rn and Tn gases measurements and (2) direct Tn and Rn progeny sensors (DRPS/DTPS) for measuring Rn and Tn progeny concentrations. Detectors were exposed simultaneously for a single period of 12 months. Variations of Tn and EETC appear higher than those of Rn and EERC. Analysis of the spatial variation of the measured concentrations is also reported. This work is part of a wider survey of Rn, Tn and their progeny concentrations in indoor environments throughout the Balkan region started in 2011 year. PMID- 29036673 TI - Enhanced Desiccation Tolerance in Mature Cultures of the Streptophytic Green Alga Zygnema circumcarinatum Revealed by Transcriptomics. AB - Desiccation tolerance is commonly regarded as one of the key features for the colonization of terrestrial habitats by green algae and the evolution of land plants. Extensive studies, focused mostly on physiology, have been carried out assessing the desiccation tolerance and resilience of the streptophytic genera Klebsormidium and Zygnema. Here we present transcriptomic analyses of Zygnema circumcarinatum exposed to desiccation stress. Cultures of Z. circumcarinatum grown in liquid medium or on agar plates were desiccated at ~86% relative air humidity until the effective quantum yield of PSII [Y(II)] ceased. In general, the response to dehydration was much more pronounced in Z. circumcarinatum cultured in liquid medium for 1 month compared with filaments grown on agar plates for 7 and 12 months. Culture on solid medium enables the alga to acclimate to dehydration much better and an increase in desiccation tolerance was clearly correlated to increased culture age. Moreover, gene expression analysis revealed that photosynthesis was strongly repressed upon desiccation treatment in the liquid culture while only minor effects were detected in filaments cultured on agar plates for 7 months. Otherwise, both samples showed induction of stress protection mechanisms such as reactive oxygen species scavenging (early light induced proteins, glutathione metabolism) and DNA repair as well as the expression of chaperones and aquaporins. Additionally, Z. circumcarinatum cultured in liquid medium upregulated sucrose-synthesizing enzymes and strongly induced membrane modifications in response to desiccation stress. These results corroborate the previously described hardening and associated desiccation tolerance in Zygnema in response to seasonal fluctuations in water availability. PMID- 29036677 TI - Preliminary Results of Radon Survey in the Kindergartens of V4 Countries. AB - The measurements of radon concentration were carried out in kindergartens of V4 countries (Hungary, Poland and Slovakia). RSKS detectors (Radosys Ltd., Hungary) were used for integrating measurement in indoor air. In total, 67 rooms in 20 kindergartens were measured. The survey was carried out in two periods from October 2015 to March 2016. The results show that radon concentration is less than 300 Bq m-3 in approximately 86.0% of cases in the first period and in 82.1% of cases in second period. However, rooms in kindergartens with radon concentration exceeding 1000 Bq m-3 were found in Slovakia. PMID- 29036676 TI - Anti-CRISPRdb: a comprehensive online resource for anti-CRISPR proteins. AB - CRISPR-Cas is a tool that is widely used for gene editing. However, unexpected off-target effects may occur as a result of long-term nuclease activity. Anti CRISPR proteins, which are powerful molecules that inhibit the CRISPR-Cas system, may have the potential to promote better utilization of the CRISPR-Cas system in gene editing, especially for gene therapy. Additionally, more in-depth research on these proteins would help researchers to better understand the co-evolution of bacteria and phages. Therefore, it is necessary to collect and integrate data on various types of anti-CRISPRs. Herein, data on these proteins were manually gathered through data screening of the literatures. Then, the first online resource, anti-CRISPRdb, was constructed for effectively organizing these proteins. It contains the available protein sequences, DNA sequences, coding regions, source organisms, taxonomy, virulence, protein interactors and their corresponding three-dimensional structures. Users can access our database at http://cefg.uestc.edu.cn/anti-CRISPRdb/ without registration. We believe that the anti-CRISPRdb can be used as a resource to facilitate research on anti-CRISPR proteins and in related fields. PMID- 29036678 TI - Country of residence, gender equality and victim blaming attitudes about partner violence: a multilevel analysis in EU. AB - Background: Intimate partner violence against women (IPVAW) is a global and preventable public health problem. Public attitudes, such as victim-blaming, are important for our understanding of differences in the occurrence of IPVAW, as they contribute to its justification. In this paper, we focus on victim-blaming attitudes regarding IPVAW within the EU and we apply multilevel analyses to identify contextual determinants of victim-blaming attitudes. We investigate both the general contextual effect of the country and the specific association between country level of gender equality and individual victim-blaming attitudes, as well as to what extend a possible general contextual effect was explained by county level gender equality. Methods: We analyzed data from 26 800 respondents from 27 member states of the European Union who responded to a survey on public perceptions of domestic violence. We applied multilevel logistic regression analysis and measures of variance (intra-class correlation (ICC)) were calculated, as well as the discriminatory accuracy by calculating the area under the receiver operator characteristic curve. Results: Over and above individual characteristics, about 15% of the individual variance in the propensity for having victim-blaming attitudes was found at the country level, and country level of gender equality did not affect the general contextual effect (i.e. ICC) of the country on individual victim-blaming attitudes. Conclusion: The present study shows that there are important between-country differences in victim-blaming attitudes that cannot be explained by differences in individual-level demographics or in gender equality at the country level. More research on attitudes towards IPVAW is needed. PMID- 29036679 TI - Human recombinant Fab fragment from combinatorial libraries of a B-cell lymphoma patient recognizes core protein of chondroitin sulphate proteoglycan 4. AB - CD antigens are well known as therapeutic targets of B-cell lymphoma. To isolate therapeutic antibodies that recognize novel targets other than CD antigens, we constructed a phage display combinatorial antibody Fab library from bone marrow lymphocytes of B-cell lymphoma patient. To eliminate antibodies reactive with known B-cell lymphoma antigen, non-hematopoietic and patient's sera reactive HeLaS3 cells was selected as a target of whole cell panning. Five rounds of panning against live HeLaS3 cells retrieved single Fab clone, termed AHSA (Antibody to HeLa Surface Antigen). Using phage display random peptide library, LSYLEP was identified as an epitope sequence of AHSA. LC-MS/MS analysis of AHSA precipitated HeLaS3 cell lysates detected several fragments corresponding to the sequence of chondroitin sulphate proteoglycan 4 (CSPG4) core protein. Since LSYLEP sequence was at the position of 313-318 of CSPG4, we considered that CSPG4 was AHSA-associated antigen. Double staining of CSPG4-postive MDA-MB-435S cells with AHSA and anti-CSPG4 rabbit antibody showed identical staining position, and reduced AHSA reactivity was observed in CSPG4-siRNA treated MDA-MB-435S cells. In conclusion, we retrieved a human Fab from antibody library of B-cell lymphoma patient, and identified CSPG4 as a recognizing antigen. AHSA may have potential benefits for development of CSPG4-targeting theranostics for B-cell lymphoma. PMID- 29036680 TI - Factors Associated with Opioid Initiation in OEF/OIF/OND Veterans with Traumatic Brain Injury. AB - Objective: These analyses examined opioid initiation and chronic use among Iraq (OIF) and Afghanistan (OEF/OND) veterans with a new diagnosis of traumatic brain injury (TBI) in the Veterans Health Administration (VHA). Methods: Data were obtained from national VHA data repositories. Analyses included OEF/OIF/OND veterans with a new TBI diagnosis in 2010-2012 who used the VHA at least twice, had not received a VHA opioid prescription in the 365 days before diagnosis, and had at least 365 days of data available after TBI diagnosis. Results: Analyses included 35,621 veterans. Twenty-one percent initiated opioids; among new initiators, 23% used chronically. The mean dose was 24.0 mg morphine equivalent dose (MED) daily (SD = 24.26); mean days supplied was 60.52 (SD = 74.69). Initiation was significantly associated with age 36-45 years (odds ratio [OR] = 1.09, 95% CI = 1.01-1.17, P = 0.04), female gender (OR = 1.22, P < 0.001), having back pain (OR = 1.38, P < 0.0001), arthritis/joint pain (OR = 1.24, P < 0.0001), or neuropathic pain (OR = 1.415, P < 0.02). In veterans age 36-45 years, those living in small rural areas had higher odds of chronic opioid use (OR = 1.31, P < 0.0001, and OR = 1.33, P = 0.006, respectively) and back pain (OR = 1.36, P = 0.003). Headache/migraine pain was associated with decreased odds of chronic opioid use (OR = 0.639, P = 0.003). Conclusions: Prevalence of opioid use is relatively low among OEF/OIF/OND veterans with newly diagnosed TBI who are using VHA. Among those who initiated opioids, about 25% use them chronically. Prescribing was mostly limited to moderate doses, with most veterans using opioids for approximately two months of the 12-month study period. PMID- 29036681 TI - Intra-specific trends of lumen and wall resistivities of vessels within the stem xylem vary among three woody plants. AB - Water flow through xylem vessels encounters hydraulic resistance when passing through the vessel lumen and end wall. Comparative studies have reported that lumen and end wall resistivities co-limit water flow through stem xylem in several angiosperm woody species that have vessels of different average diameter and length. This study examined the intra-specific relationship between the lumen and end wall resistivities (Rlumen and Rwall) for vessels within the stem xylem using three deciduous angiosperm woody species found in temperate forest. Morus australis Poir. and Acer rufinerve Siebold et Zucc. are early- and late successional species, and Vitis coignetiae Pulliat ex Planch is a woody liana. According to the Hagen-Poiseuille equation, Rlumen is proportional to the fourth power of vessel diameter (D), whereas vessel length (L) and inter-vessel pit area (Apit) determine Rwall. To estimate Rlumen and Rwall, the scaling relationships between the L and D and between Apit and D were measured. The scaling exponents between L and D were 1.47, 3.19 and 2.86 for A. rufinerve, M. australis and V. coignetiae, respectively, whereas those between Apit and D were 0.242, 2.11 and 2.68, respectively. Unlike the inter-specific relationships, the wall resistivity fraction (Rwall/(Rlumen + Rwall)) within xylem changed depending on D. In M. australis and V. coignetiae, this fraction decreased with increasing D, while in A. rufinerve, it increased with D. Vessels with a high wall resistivity fraction have high Rwall and total resistivity but are expected to have low susceptibility to xylem cavitation due to a small cumulative Apit. In contrast, vessels with a low wall resistivity fraction have low Rwall and total resistivity but high susceptibility to xylem cavitation. Because the wall resistivity fraction varies with D, the stem xylem contains vessels with different hydraulic efficiencies and safety to xylem cavitation. These features produce differences in the hydraulic properties of plants with different life forms. PMID- 29036682 TI - Perinatal Risk Factors for Neonatal Early-onset Group B Streptococcal Sepsis after Initiation of Risk-based Maternal Intrapartum Antibiotic Prophylaxis-A Case Control Study. AB - Objectives: To identify the perinatal risk factors for early-onset Group B Streptococcus (EOGBS) sepsis in neonates after inception of a risk-based maternal intrapartum antibiotic prophylaxis strategy in 2004. Design: Case control study. Methods: All newborn with early onset GBS sepsis (born between 2004 and 2013) were deemed to be "cases" and controls were selected in a 1:4 ratio. Results: More than three per vaginal (PV) examinations [odds ratio (OR) 8.57, 95% confidence interval (CI) 3.10-23.6] was a significant risk factors. Peripartum fever (OR 3.54, 95% CI 1.3-9.67), urinary tract infection (OR 2.88, 95% CI 1.08 7.63), meconium-stained amniotic fluid (MSAF) (OR 2.52, 95% CI 1.18-5.37) and caesarean section (OR 1.99, 95% CI 1.16-3.43) were also found to be associated with EOGBS sepsis. Conclusion: Multiple vaginal examinations are the strongest risk factors for peripartum Group B Streptococcal (GBS) sepsis. The association of MSAF and caesarean section indicates that foetal distress is an early symptom of perinatal GBS infection. PMID- 29036683 TI - CR2Cancer: a database for chromatin regulators in human cancer. AB - Chromatin regulators (CRs) can dynamically modulate chromatin architecture to epigenetically regulate gene expression in response to intrinsic and extrinsic signalling cues. Somatic alterations or misexpression of CRs might reprogram the epigenomic landscape of chromatin, which in turn lead to a wide range of common diseases, notably cancer. Here, we present CR2Cancer, a comprehensive annotation and visualization database for CRs in human cancer constructed by high throughput data analysis and literature mining. We collected and integrated genomic, transcriptomic, proteomic, clinical and functional information for over 400 CRs across multiple cancer types. We also built diverse types of CR-associated relations, including cancer type dependent (CR-target and miRNA-CR) and independent (protein-protein interaction and drug-target) ones. Furthermore, we manually curated around 6000 items of aberrant molecular alterations and interactions of CRs in cancer development from 5007 publications. CR2Cancer provides a user-friendly web interface to conveniently browse, search and download data of interest. We believe that this database would become a valuable resource for cancer epigenetics investigation and potential clinical application. CR2Cancer is freely available at http://cis.hku.hk/CR2Cancer. PMID- 29036684 TI - YEASTRACT: an upgraded database for the analysis of transcription regulatory networks in Saccharomyces cerevisiae. AB - The YEAst Search for Transcriptional Regulators And Consensus Tracking (YEASTRACT www.yeastract.com) information system has been, for 11 years, a key tool for the analysis and prediction of transcription regulatory associations at the gene and genomic levels in Saccharomyces cerevisiae. Since its last update in June 2017, YEASTRACT includes approximately 163000 regulatory associations between transcription factors (TF) and target genes in S. cerevisiae, based on more than 1600 bibliographic references; it also includes 247 specific DNA binding consensus recognized by 113 TFs. This release of the YEASTRACT database provides new visualization tools to visualize each regulatory network in an interactive fashion, enabling the user to select and observe subsets of the network such as: (i) considering only DNA binding evidence or both DNA binding and expression evidence; (ii) considering only either positive or negative regulatory associations; or (iii) considering only one set of related environmental conditions. A further tool to observe TF regulons is also offered, enabling a clear-cut understanding of the exact meaning of the available data. We believe that with this new version, YEASTRACT will improve its role as an open web resource instrumental for Yeast Biologists and Systems Biology researchers. PMID- 29036685 TI - NUCLEAR HEATING IN LIF DOSEMETERS IN A FUSION NEUTRON FIELD, TRIAL OF DIRECT COMPARISON OF EXPERIMENTAL AND SIMULATED RESULTS. AB - The results of nuclear heating measured by means of thermoluminescent dosemeters (TLD-LiF) in a Cu block irradiated by 14 MeV neutrons are presented. The integral Cu experiment relevant for verification of copper nuclear data at neutron energies characteristic for fusion facilities was performed in the ENEA FNG Laboratory at Frascati. Five types of TLDs were used: highly photon sensitive LiF:Mg,Cu,P (MCP-N), 7LiF:Mg,Cu,P (MCP-7) and standard, lower sensitivity LiF:Mg,Ti (MTS-N), 7LiF:Mg,Ti (MTS-7) and 6LiF:Mg,Ti (MTS-6). Calibration of the detectors was performed with gamma rays in terms of air-kerma (10 mGy of 137Cs air-kerma). Nuclear heating in the Cu block was also calculated with the use of MCNP transport code Nuclear heating in Cu and air in TLD's positions was calculated as well. The nuclear heating contribution from all simulated by MCNP6 code particles including protons, deuterons, alphas tritons and heavier ions produced by the neutron interactions were calculated. A trial of the direct comparison between experimental results and results of simulation was performed. PMID- 29036686 TI - COMPARISON OF APPROACHES TO OBTAIN A SAMPLE OF DWELLINGS FOR RADON SURVEY. AB - Obtaining of the representative sample of dwellings is a basic requirement to organization of the radon survey. Since random selection is often impossible, quasi-random approaches are used. The aim of the study is to analyze errors in radon exposure assessment that resulted from rejecting the random selection. Both the modeling and experiments were conducted. Three types of errors were observed: shifting of the mean, change of the variance and mixture of the previous two. PMID- 29036689 TI - HIGH DOSE FAST NEUTRON DOSIMETRY USING PADC PLASTIC NUCLEAR TRACK DETECTORS AND GREY LEVEL ANALYSIS. AB - The objective of this work is to demonstrate the possibility of performing fast neutron dosimetry up to 5 Sv using optical absorbance of polyallyl diglycol carbonate (PADC) detectors, obtained through grey level analysis of PADC images acquired with a commercial track-counting dosimetry system, and estimate the uncertainties involved. PADCs were irradiated with doses from 100 mSv to 5 Sv (252Cf source) and etched. PADC images were acquired using the TASLIMAGETM Neutron Dosimetry System (Track Analysis Systems Ltd.) and analysed to obtain the grey levels and the optical absorbance. The absorbance from different detectors and batches was analysed to determine the uncertainties involved, from which the final uncertainty in the method, ~30% and dominated by the uncertainty in the calibration curve, was estimated. A dose estimation <2 Sv can also be performed using a 'universal curve' by normalising the absorbance to that of a detector irradiated with 1 Sv. The data presented here allows the extension of the dose range of track counting systems using no additional equipment, only the images already acquired by the systems. PMID- 29036688 TI - A cell-penetrating antibody inhibits human RAD51 via direct binding. AB - RAD51, a key factor in homology-directed repair (HDR), has long been considered an attractive target for cancer therapy, but few specific inhibitors have been found. A cell-penetrating, anti-DNA, lupus autoantibody, 3E10, was previously shown to inhibit HDR, sensitize tumors to radiation, and mediate synthetic lethal killing of BRCA2-deficient cancer cells, effects that were initially attributed to its affinity for DNA. However, as the molecular basis for its ability to inhibit DNA repair, we report that 3E10 directly binds to the N-terminus of RAD51, sequesters RAD51 in the cytoplasm, and impedes RAD51 binding to DNA. Further, we generate separation-of-function mutations in the complementarity determining regions of 3E10 revealing that inhibition of HDR tracks with binding to RAD51 but not to DNA, whereas cell penetration is linked to DNA binding. The consequences of these mutations on putative 3E10 interactions with RAD51 and DNA are correlated with in silico molecular modeling. Taken together, the results identify 3E10 as a novel inhibitor of RAD51 by direct binding, accounting for its ability to suppress HDR and providing the molecular basis to guide pre-clinical development of 3E10 as an anti-cancer agent. PMID- 29036687 TI - Measuring deaminated nucleotide surveillance enzyme ITPA activity with an ATP releasing nucleotide chimera. AB - Nucleotide quality surveillance enzymes play important roles in human health, by detecting damaged molecules in the nucleotide pool and deactivating them before they are incorporated into chromosomal DNA or adversely affect metabolism. In particular, deamination of adenine moiety in (deoxy)nucleoside triphosphates, resulting in formation of (d)ITP, can be deleterious, leading to DNA damage, mutagenesis and other harmful cellular effects. The 21.5 kDa human enzyme that mitigates this damage by conversion of (d)ITP to monophosphate, ITPA, has been proposed as a possible therapeutic and diagnostic target for multiple diseases. Measuring the activity of this enzyme is useful both in basic research and in clinical applications involving this pathway, but current methods are nonselective and are not applicable to measurement of the enzyme from cells or tissues. Here, we describe the design and synthesis of an ITPA-specific chimeric dinucleotide (DIAL) that replaces the pyrophosphate leaving group of the native substrate with adenosine triphosphate, enabling sensitive detection via luciferase luminescence signaling. The probe is shown to function sensitively and selectively to quantify enzyme activity in vitro, and can be used to measure the activity of ITPA in bacterial, yeast and human cell lysates. PMID- 29036690 TI - Simultaneous Measurements of Nanoaerosols and Radioactive Aerosols Containing the Short-lived Radon Isotopes. AB - The activity size distribution of the Equilibrium-Equivalent Concentration (EER) of 222Rn is one of the most important parameters for the estimation of radiation dose by inhalation of radon decay products. A series of measurements of the EER activity size distribution were performed by the screen diffusion battery in Radon-Aerosol chamber (10 m3) at the National Institute for Nuclear, Chemical, and Biological Protection (SUJCHBO). These measurements were performed at different levels of radon concentration. For this study, the Graded Screen Array Diffusion Battery (GSA DB), developed by the SUJCHBO (based on Earl Knutson and Robert F Holub design), consists of 10 screens and backup filter used to collect all particles that penetrated the screens. The measuring range of this GSA DB allows measuring the radioactive nanoaerosols in the size range from 0.5 to 100 nm. The Earl Knutson algorithm was used for EER activity size distribution evaluation. The results of EER activity size distribution were subsequently compared with the aerosol particle size distribution measured by Scanning Mobility Particle Sizer Spectrometer (SMPS 3936 N, TSI Inc., MN, USA). PMID- 29036692 TI - Clinical utility of texture analysis of 18F-FDG PET/CT in patients with Stage I lung cancer treated with stereotactic body radiotherapy. AB - We evaluated the reproducibility and predictive value of texture parameters and existing parameters of 18F-FDG PET/CT images in Stage I non-small-cell lung cancer (NSCLC) patients treated with stereotactic body radiotherapy (SBRT). Twenty-six patients with Stage I NSCLC (T1-2N0M0) were retrospectively analyzed. All of the patients underwent an 18F-FDG PET/CT scan before treatment and were treated with SBRT. Each tumor was delineated using PET Edge (MIM Software Inc., Cleveland, OH), and texture parameters were calculated using open-source code CGITA. From 18F-FDG PET/CT images, three conventional parameters, including maximum standardized uptake value (SUV), metabolic tumor volume (MTV) and total lesion glycolysis (TLG), and four texture parameters, including entropy and dissimilarity (derived from a co-occurrence matrix) and high-intensity large-area emphasis (HILAE) and zone percentage (derived from a size-zone matrix) were analyzed. Reproducibility was evaluated using two independent delineations conducted by two observers. The ability to predict local control (LC), progression-free survival (PFS) and overall survival (OS) was tested for each parameter. All of the seven parameters except zone percentage showed good reproducibility, with intraclass correlation coefficient values >0.8. In univariate analysis, only HILAE was a significant predictor for LC. Histology, dose fractionation, and maximum SUV were associated with PFS, and histology and dose fractionation were associated with OS. We showed that texture parameters derived from 18F-FDG PET/CT were reproducible and potentially beneficial for predicting LC in Stage I lung cancer patients treated with SBRT. PMID- 29036691 TI - Nuclear localized C9orf72-associated arginine-containing dipeptides exhibit age dependent toxicity in C. elegans. AB - A hexanucleotide repeat expansion mutation in the C9orf72 gene represents a prevalent genetic cause of several neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and frontotemporal dementia. Non-canonical translation of this repeat gives rise to several distinct dipeptide protein species that could play pathological roles in disease. Here, we show in the model system Caenorhabditis elegans that expression of the arginine-containing dipeptides, but not alanine-containing dipeptides, produces toxic phenotypes in multiple cellular contexts, including motor neurons. Expression of either (PR)50 or (GR)50 during development caused a highly penetrant developmental arrest, while post-developmental expression caused age-onset paralysis. Both (PR)50- and (GR)50-green fluorescent protein tagged dipeptides were present in the nucleus and nuclear localization was necessary and sufficient for their toxicity. Using an inducible expression system, we discovered that age-onset phenotypes caused by (PR)50 required both continual (PR)50 expression and an aged cellular environment. The toxicity of (PR)50 was modified by genetic mutations that uncouple physiological aging from chronological aging. However, these same mutations failed to modify the toxicity of (GR)50, suggesting that (PR)50 and (GR)50 exert their toxicity through partially distinct mechanism(s). Changing the rate of physiological aging also mitigates toxicity in other C. elegans models of ALS, suggesting that the (PR)50 dipeptide might engage similar toxicity mechanisms as other ALS disease-causing proteins. PMID- 29036693 TI - ICG: a wiki-driven knowledgebase of internal control genes for RT-qPCR normalization. AB - Real-time quantitative PCR (RT-qPCR) has become a widely used method for accurate expression profiling of targeted mRNA and ncRNA. Selection of appropriate internal control genes for RT-qPCR normalization is an elementary prerequisite for reliable expression measurement. Here, we present ICG (http://icg.big.ac.cn), a wiki-driven knowledgebase for community curation of experimentally validated internal control genes as well as their associated experimental conditions. Unlike extant related databases that focus on qPCR primers in model organisms (mainly human and mouse), ICG features harnessing collective intelligence in community integration of internal control genes for a variety of species. Specifically, it integrates a comprehensive collection of more than 750 internal control genes for 73 animals, 115 plants, 12 fungi and 9 bacteria, and incorporates detailed information on recommended application scenarios corresponding to specific experimental conditions, which, collectively, are of great help for researchers to adopt appropriate internal control genes for their own experiments. Taken together, ICG serves as a publicly editable and open content encyclopaedia of internal control genes and accordingly bears broad utility for reliable RT-qPCR normalization and gene expression characterization in both model and non-model organisms. PMID- 29036694 TI - Efficient modulation of photosynthetic apparatus confers desiccation tolerance in the resurrection plant Boea hygrometrica. AB - Boea hygrometrica (B. hygrometrica) can tolerate severe desiccation and resume photosynthetic activity rapidly upon water availability. However, little is known about the mechanisms by which B. hygrometrica adapts to dehydration and resumes competence upon rehydration. Here we determine how B. hygrometrica deals with oxidative stress, excessive excitation/electron pressures as well as photosynthetic apparatus modulation during dehydration/rehydration. By measuring ROS generation and scavenging efficiency, we found that B. hygrometrica possesses efficient strategies to maintain cellular redox homeostasis. Transmission electron microscopy (TEM) analysis revealed a remarkable alteration of chloroplast architecture and plastoglobules (PGs) accumulation during dehydration/rehydration. Pulse-amplitude modulated (PAM) chlorophyll fluorescence measurements, P700 redox assay as well as chlorophyll fluorescence emission spectra analysis on leaves of B. hygrometrica during dehydration/rehydration were also performed. Results showed that the photochemical activity of PSII as well as photoprotective energy dissipation in PSII undergo gradual inactivation/activation during dehydration/rehydration in B. hygrometrica; PSI activity is relatively induced upon water deficit, and dehydration leads to physical interaction between PSI and LHCII. Furthermore, blue-native polyacrylamide gel electrophoresis (BN-PAGE) and immunoblot analysis revealed that the protein abundance of light harvesting complexes decrease markedly along with internal water deficit to restrict light absorption and attenuate electron transfer, resulting in limited light excitation and repressed photosynthesis. In contrast, many thylakoid proteins remain at a basal level even after full dehydration. Taken together, our study demonstrated that efficient modulation of cellular redox homeostasis and photosynthetic activity confers desiccation tolerance in B. hygrometrica. PMID- 29036695 TI - Identifying Greener and Safer Plasticizers: A 4-Step Approach. AB - The health and economic burden of endocrine disrupting chemicals, such as the plasticizer di(2-ethylhexyl) phthalate (DEHP), is prompting industry to develop alternatives. However, the absence of requirements for manufacturers to ensure the safety of these alternatives has led to the generation of replacements that may have similar or worse effects than the original chemicals. Consequently, there is increasing recognition by scientists, regulators and industry that proactive approaches are needed to develop safe chemical substitutes. We propose a 4-step approach for the design, characterization and toxicological testing of responsible alternative chemicals that we illustrate with our ongoing studies on DEHP replacements. Our approach is comprised of: (1) the design and characterization of alternative chemicals based on innovative chemical structures and environmental considerations; (2) large-scale in vitro cell-based high throughput and selective ex vivo studies to preselect the most innocuous alternatives; (3) an acute toxicity in vivo study to rule out overt toxicity of the selected candidates; and (4) an in utero and lactational exposure study comparing the effects of selected candidates to those currently in use, emphasizing commonly described phenotypes after exposure to the latter. Using this 4-step approach, we have identified 2 alternative chemicals displaying good plasticizing properties, better biodegradability, and less leaching than DEHP without any apparent toxicity in vivo. This process has thus far proven useful in the proactive identification of responsible chemical replacements for DEHP. PMID- 29036696 TI - RADIATION PROTECTION MEASUREMENTS WITH THE VARIANCE-COVARIANCE METHOD IN THE STRAY RADIATION FIELDS FROM PHOTON AND PROTON THERAPY FACILITIES. AB - The microdosimetric variance-covariance method was used to study the stray radiation fields from the photon therapy facility at the Technical University of Denmark and the scanned proton therapy beam at the Skandion Clinic in Uppsala, Sweden. Two TEPCs were used to determine the absorbed dose, the dose-average lineal energy, the dose-average quality factor and the dose equivalent. The neutron component measured by the detectors at the proton beam was studied through Monte Carlo simulations using the code MCNP6. In the photon beam the stray absorbed dose ranged between 0.3 and 2.4 MUGy per monitor unit, and the dose equivalent between 0.4 and 9 MUSv per monitor unit, depending on beam energy and measurement position. In the proton beam the stray absorbed dose ranged between 3 and 135 MUGy per prescribed Gy, depending on detector position and primary proton energy. PMID- 29036697 TI - The elderly left behind-changes in survival trends of primary central nervous system lymphoma over the past 4 decades. AB - Background: There has been significant improvement in treatment outcomes of primary central nervous system lymphoma (PCNSL) at specialized centers over the past several decades; however, it is unclear if these changes have translated to benefits in the general population. Methods: In this study, we utilized 2 national databases to examine survival trends over time for PCNSL: the Central Brain Tumor Registry of the United States (CBTRUS, 2000-2013) and 18 registries from the Surveillance, Epidemiology, and End Results program (SEER, 1973-2013). Results: The annual incidence of PCNSL in 2013 was 0.4 per 100000 population (CBTRUS/SEER). Incidence increased from 0.1 per 100000 in the 1970s to 0.4 per 100000 in the 1980s, correlating with an increase in the diagnosis of patients >=70 years (1973: 0.2 vs 2013: 2.1 [SEER]). Incidence rates differed greatly between young and elderly patients (age 20-29 y: 0.08 vs 70-79 y: 4.32 [CBTRUS]). Even though the median overall survival of all patients doubled from 12.5 months in the 1970s to 26 months in the 2010s, this survival benefit was limited to patients <70 years. Survival in the elderly population has not changed in the last 40 years (6 mo in the 1970s vs 7 mo in the 2010s, P = 0.1). Conclusion: The poor outcome seen in the particularly vulnerable elderly patient population highlights the need for clinical trials targeting the elderly in hopes of improving treatment strategies and survival. PMID- 29036698 TI - Chromosomal Context Affects the Molecular Evolution of Sex-linked Genes and Their Autosomal Counterparts in Turtles and Other Vertebrates. AB - Sex chromosomes evolve differently from autosomes because natural selection acts distinctly on them given their reduced recombination and smaller population size. Various studies of sex-linked genes compared with different autosomal genes within species support these predictions. Here, we take a novel alternative approach by comparing the rate of evolution between subsets of genes that are sex linked in selected reptiles/vertebrates and the same genes located in autosomes in other amniotes. We report for the first time the faster evolution of Z-linked genes in a turtle (the Chinese softshell turtle Pelodiscus sinensis) relative to autosomal orthologs in other taxa, including turtles with temperature-dependent sex determination (TSD). This faster rate was absent in its close relative, the spiny softshell turtle (Apalone spinifera), thus revealing important lineage effects, and was only surpassed by mammalian-X linked genes. In contrast, we found slower evolution of X-linked genes in the musk turtle Staurotypus triporcatus (XX/XY) and homologous Z-linked chicken genes. TSD lineages displayed overall faster sequence evolution than taxa with genotypic sex determination (GSD), ruling out global effects of GSD on molecular evolution beyond those by sex-linkage. Notably, results revealed a putative selective sweep around two turtle genes involved in vertebrate gonadogenesis (Pelodiscus-Z-linked Nf2 and Chrysemys-autosomal Tspan7). Our observations reveal important evolutionary changes at the gene level mediated by chromosomal context in turtles despite their low overall evolutionary rate and illuminate sex chromosome evolution by empirically testing expectations from theoretical models. Genome-wide analyses are warranted to test the generality and prevalence of the observed patterns. PMID- 29036699 TI - Pain-Related Acceptance as a Mediator in the Fear Avoidance Model of Chronic Pain: A Preliminary Study. AB - Objective: The fear avoidance model has served as a popular, heuristic model in explaining the transition from acute to chronic pain. In addition, the significance of pain-related acceptance in chronic pain development and adjustment is underlined in a vast number of empirical studies. The objective of the current preliminary study was to investigate pain-related acceptance as a mediator within the key cognitive relationships proposed by the fear avoidance model of chronic pain. Materials and Methods. In a cross-sectional design, bodily pain, pain catastrophizing, fear avoidance beliefs, and pain-related acceptance were assessed by questionnaires in 125 chronic pain patients in a Danish multidisciplinary pain center. Mediation analyses were performed to test the effect of pain-related acceptance on bodily pain, pain catastrophizing, and fear avoidance beliefs. Results: Medium-sized correlations were found between all outcomes. Mediation analyses revealed that pain-related acceptance was a significant mediator between 1) bodily pain and pain catastrophizing and 2) pain catastrophizing and fear avoidance beliefs after controlling for bodily pain. Furthermore, pain-related acceptance accounted for a large proportion in both associations (82.2% and 56.1%). Conclusions: The results suggest that pain related acceptance is a prominent psychological mechanism within the key cognitive associations of the fear avoidance model, which predicts a certain path of cognitive, emotional, and behavioral factors in the development and maintenance of chronic pain. This proposes pain-related acceptance to be an important mechanism that possibly counteracts the negative reactions of pain catastrophizing and fear avoidance beliefs. These findings should be investigated further and could potentially be an important place to intervene clinically in order to counteract the development and/or maintenance of chronic pain. PMID- 29036700 TI - EXPERIMENTAL EVALUATION OF NEUTRON SHIELDING MATERIALS. AB - A new proposed design of neutron shielding material-based on the commercial material Borotron UH050 with an addition of Al(OH)3-is evaluated in order to determine if its neutron and gamma shielding properties match those of a reference material, NS4FR. Neutron and gamma dosimetry measurements are performed, as well as neutron spectrometry measurements and Monte Carlo simulations. Negligible differences are found between the materials for neutron shielding, while significant differences are found for gamma shielding. The effect of Al(OH)3 addition to Borotron UH050 is to reduce neutron shielding properties while increasing gamma shielding properties. The resulting material is as efficient as NS4FR for neutron shielding but less efficient for gamma shielding-thicknesses 20% higher are required to match gamma shielding properties of NS4FR. Monte Carlo models of the materials are validated based on the performed measurements of neutron spectra and neutron and gamma ambient dose equivalent. PMID- 29036703 TI - Spiritual/Religious Distress Is Associated with Pain Catastrophizing and Interference in Veterans with Chronic Pain. AB - Objective: Few studies have examined relations between one important aspect of spiritual/religious functioning-spiritual distress-and pain-related outcomes, and none has examined how spiritual distress and depression conjointly relate to chronic pain. The goal of the present study, then, was to examine veterans' spiritual distress as a predictor of two aspects of chronic pain, catastrophizing and interference, testing a mediational model of depression. Design: Four hundred thirty-six patients seeking treatment in a chronic pain management clinic responded to a mailed survey assessing demographics, spiritual distress, depression, pain catastrophizing, and pain interference. Setting: Participants were drawn from a list of patients enrolled in a chronic pain rehabilitation program at a large Midwestern Veterans Affairs health care system. Subjects: Participants were 436 veterans seeking chronic pain rehabilitation. The sample was predominantly Caucasian and male. Methods: Survey data were subjected to mediational analysis, assessing both direct effects of spiritual distress on pain outcomes and indirect effects of spiritual distress through depression. Results: Results showed that spiritual distress was moderately strongly related to both pain outcomes. Further, depression mediated links between spiritual distress and pain catastrophizing (partially) and interference (fully). Conclusions: These results have implications for further research in spiritually integrated care as a component of holistic, integrative approaches to the management of chronic pain. PMID- 29036701 TI - Mismatch Negativity But Not P300 Is Associated With Functional Disability in Schizophrenia. AB - Mismatch negativity (MMN) and P300 event-related potential (ERP) reductions in schizophrenia (SZ) reflect preattentive and attention-mediated auditory processing deficits, respectively. Although both have been linked to cognitive deficits in SZ, their relative contributions to real-world functioning are unclear. We sought to determine the functional significance of disrupted auditory processing in SZ by examining MMN and P300 in typically disabled low-functioning patients and in patients with high levels of independent role functioning. MMN to auditory deviants and P300 to infrequent auditory target and nontarget novel stimuli were assessed in 20 high-functioning SZ patients (HF-SZ), 17 low functioning patients (LF-SZ), and 35 healthy comparison (HC) subjects. There was a group effect on MMN and P300 amplitudes across stimulus types. MMN was significantly diminished in LF-SZ compared to HF-SZ and HC, and HF-SZ demonstrated comparable MMN to HC. In contrast, P300 was significantly reduced in both LF-SZ and HF-SZ compared to HC. Logistic regression suggested independent sensitivity of MMN to functioning in SZ over and above P300 measures. Neither MMN nor P300 were associated with positive or negative symptom severity. Results replicate MMN and P300 abnormalities in SZ, and also suggest that the neural mechanisms associated with the preattentive detection of auditory deviance are most compromised in patients with functional disability. MMN may index pathophysiological processes that are critical for optimal functioning in SZ. PMID- 29036702 TI - A hyperdynamic H3.3 nucleosome marks promoter regions in pluripotent embryonic stem cells. AB - Histone variants and their chaperones are key regulators of eukaryotic transcription, and are critical for normal development. The histone variant H3.3 has been shown to play important roles in pluripotency and differentiation, and although its genome-wide patterns have been investigated, little is known about the role of its dynamic turnover in transcriptional regulation. To elucidate the role of H3.3 dynamics in embryonic stem cell (ESC) biology, we generated mouse ESC lines carrying a single copy of a doxycycline (Dox)-inducible HA-tagged version of H3.3 and monitored the rate of H3.3 incorporation by ChIP-seq at varying time points following Dox induction, before and after RA-induced differentiation. Comparing H3.3 turnover profiles in ESCs and RA-treated cells, we identified a hyperdynamic H3.3-containing nucleosome at the -1 position in promoters of genes expressed in ESCs. This dynamic nucleosome is restricted and shifted downstream into the +1 position following differentiation. We suggest that histone turnover dynamics provides an additional mechanism involved in expression regulation, and that a hyperdynamic -1 nucleosome marks promoters in ESCs. Our data provide evidence for regional regulation of H3.3 turnover in ESC promoters, and calls for testing, in high resolution, the dynamic behavior of additional histone variants and other structural chromatin proteins. PMID- 29036704 TI - MEASUREMENTS OF AIRBORNE CONCENTRATIONS OF RADON AND THORON DECAY PRODUCTS. AB - Liquid scintillation counting (LSC) is a measuring technique, broadly applied in environmental monitoring of radionuclides. One of the possible applications of LSC is the measurement of radon and thoron decay products. But this method is suitable only for grab sampling. For long-term measurements a different technique can be applied-monitors of potential alpha energy concentration (PAEC) with thermoluminescent detectors (TLD). In these devices, called Alfa-2000 sampling probe, TL detectors (CaSO4:Dy) are applied for alpha particles counting. Three independent heads are placed over the membrane filter in a dust sampler's microcyclone. Such solution enables simultaneous measurements of PAEC and dust content. Moreover, the information which is stored in TLD chips is the energy of alpha particles, not the number of counted particles. Therefore, the readout of TL detector shows directly potential alpha energy, with no dependence on equilibrium factor, etc. This technique, which had been used only for radon decay products measurements, was modified by author to allow simultaneous measurements of radon and thoron PAEC. The LSC method can be used for calibration of portable radon decay products monitors. The LSC method has the advantage to be an absolute one, the TLD method to measure directly the (dose relevant) deposited energy. PMID- 29036706 TI - Faucial diphtheria. PMID- 29036705 TI - Chalcogenozidovudine Derivatives With Antitumor Activity: Comparative Toxicities in Cultured Human Mononuclear Cells. AB - Considering a novel series of zidovudine (AZT) derivatives encompassing selenoaryl moieties promising candidates as therapeutics, we examined the toxicities elicited by AZT and derivatives 5'-(4-Chlorophenylseleno)zidovudine (SZ1); 5'-(Phenylseleno)zidovudine (SZ2); and 5'-(4-Methylphenylseleno)zidovudine (SZ3) in healthy cells and in mice. Resting and stimulated cultured human peripheral blood mononuclear cells (PBMCs) were treated with the compounds at concentrations ranging from 10 to 200 uM for 24 and/or 72 h. Adult mice received a single injection of compounds (100 umol/kg, s.c.) and 72 h after administration, hepatic/renal biomarkers were analyzed. Resting and stimulated PBMCs exposed to SZ1 displayed loss of viability, increased reactive species production, disruption in cell cycle, apoptosis and increased transcript levels and production of pro-inflammatory cytokines. In a mild way, most of these effects were also induced by SZ2. AZT and SZ3 did not cause significant toxicity towards resting PBMCs. Differently, both compounds elicited apoptosis and S phase arrest in stimulated cells. AZT and derivatives administration did not change the body weight and plasma biochemical markers in mice. However, the absolute weight and organ-to-body weight ratio of liver, kidneys and spleen were altered in AZT, SZ1-, and SZ2-treated mice. Our results highlighted the involvement of derivatives SZ1 and SZ2 in redox and immunological dyshomeostasis leading to activation of apoptotic signaling pathways in healthy cells under different division phases. On the other hand, the derivative SZ3 emerged as a promising candidate for further viral infection/antitumor studies as a new effective therapy with low toxicity for immune cells and after acute in vivo treatment. PMID- 29036707 TI - INTRODUCTION AND TESTING OF A SIMPLIFIED METHOD FOR THE EVALUATION OF THE RADON EMANATION. AB - The radioactive noble gas radon is identified as the highest risk factor for lung cancer after smoking. The exhalation of radon from building materials can contribute to the radon indoor activity concentration. Therefore, the emanation of radon might be a crucial factor. It is defined as the release of radon from the solid soil matter into the pore space of the material. This article describes a new on-site measurement method for the emanation of radon from building materials at industrial sites. Therefore, a closed vessel with sample material and a passive radon detector inside is used to measure the integrated build-up curve of the activity concentration. Additionally, a brief overview on existing radon emanation measurement methods is given. PMID- 29036708 TI - RADON MEASUREMENTS IN KINDERGARTENS IN URAL REGION (RUSSIA). AB - The radon survey of kindergartens has been conducted in Sverdlovskaya oblast during 2013-16. Indoor radon concentrations have been measured in 180 kindergartens in 21 villages and 10 towns. The LR-115 nuclear track detectors were placed in 560 rooms (three or four rooms per kindergarten) during 2-3 months. To obtain annual values, radon measurements were carried in the cold and warm seasons. The arithmetic and geometric means of annual indoor radon concentrations in rooms are 59 and 42 Bq/m3 respectively, GSD = 2.33. Analysis of the building factors affecting radon entry is presented. The detailed radon survey was performed in one kindergarten where exceeding of national action radon level was observed. PMID- 29036709 TI - Deep learning of the splicing (epi)genetic code reveals a novel candidate mechanism linking histone modifications to ESC fate decision. AB - Alternative splicing (AS) is a genetically and epigenetically regulated pre-mRNA processing to increase transcriptome and proteome diversity. Comprehensively decoding these regulatory mechanisms holds promise in getting deeper insights into a variety of biological contexts involving in AS, such as development and diseases. We assembled splicing (epi)genetic code, DeepCode, for human embryonic stem cell (hESC) differentiation by integrating heterogeneous features of genomic sequences, 16 histone modifications with a multi-label deep neural network. With the advantages of epigenetic features, DeepCode significantly improves the performance in predicting the splicing patterns and their changes during hESC differentiation. Meanwhile, DeepCode reveals the superiority of epigenomic features and their dominant roles in decoding AS patterns, highlighting the necessity of including the epigenetic properties when assembling a more comprehensive splicing code. Moreover, DeepCode allows the robust predictions across cell lineages and datasets. Especially, we identified a putative H3K36me3 regulated AS event leading to a nonsense-mediated mRNA decay of BARD1. Reduced BARD1 expression results in the attenuation of ATM/ATR signalling activities and further the hESC differentiation. These results suggest a novel candidate mechanism linking histone modifications to hESC fate decision. In addition, when trained in different contexts, DeepCode can be expanded to a variety of biological and biomedical fields. PMID- 29036710 TI - A disulfide bond A-like oxidoreductase is a strong candidate gene for self incompatibility in apricot (Prunus armeniaca) pollen. AB - S-RNase based gametophytic self-incompatibility (SI) is a widespread prezygotic reproductive barrier in flowering plants. In the Solanaceae, Plantaginaceae and Rosaceae gametophytic SI is controlled by the pistil-specific S-RNases and the pollen S-locus F-box proteins but non-S-specific factors, namely modifiers, are also required. In apricot, Prunus armeniaca (Rosaceae), we previously mapped two pollen-part mutations that confer self-compatibility in cultivars Canino and Katy at the distal end of chromosome 3 (M-locus) unlinked to the S-locus. Here, we used high-resolution mapping to identify the M-locus with an ~134 kb segment containing ParM-1-16 genes. Gene expression analysis identified four genes preferentially expressed in anthers as modifier gene candidates, ParM-6, -7, -9 and -14. Variant calling of WGS Illumina data from Canino, Katy, and 10 self incompatible cultivars detected a 358 bp miniature inverted-repeat transposable element (MITE) insertion in ParM-7 shared only by self-compatible apricots, supporting ParM-7 as strong candidate gene required for SI. ParM-7 encodes a disulfide bond A-like oxidoreductase protein, which we named ParMDO. The MITE insertion truncates the ParMDO ORF and produces a loss of SI function, suggesting that pollen rejection in Prunus is dependent on redox regulation. Based on phylogentic analyses we also suggest that ParMDO may have originated from a tandem duplication followed by subfunctionalization and pollen-specific expression. PMID- 29036711 TI - Impacts of Electroconvulsive Therapy on 1-Year Outcomes in Patients With Schizophrenia: A Controlled, Population-Based Mirror-Image Study. AB - Objectives: Despite the decline in the use of electroconvulsive therapy (ECT) in patients with schizophrenia, ECT augmentation is still recommended for those with poor response to standard pharmacological intervention. However, the effectiveness of augmentation of antipsychotics with ECT on long-term clinical outcomes needs to be verified in an expanded sample. Methods: Patients who were hospitalized for schizophrenia and received ECT for the first time during that hospitalization were identified from the total population health insurance database in Taiwan between 2002 and 2011. A comparison group was randomly selected and matched by age, gender, calendar year of hospitalization, and duration of hospitalization. Using a mirror-image design, the changes in rates of psychiatric and overall hospitalization, length of hospital stay, number of emergency department visits, and direct medical costs across the 1-year pre- and post-treatment periods were examined. Results: A total of 2074 patients with the same number of comparison participants were included in the analysis. The rate of re-hospitalization decreased significantly in the ECT group during the 1-year post-treatment period, while there was no significant difference in the comparison group. Correspondingly, the total medical expenses increased significantly in the non-ECT group, but not in the ECT group. Notably, the reduction in the psychiatric re-hospitalization rate in the ECT group was more pronounced among those treated with clozapine or a medium-high average daily dose of antipsychotics. Conclusion: This 1-year mirror-image analysis indicated that augmentation of antipsychotics with ECT in schizophrenic patients was associated with a reduced rate of psychiatric re-hospitalization. PMID- 29036712 TI - COMPARISON OF COSMIC-RAY ENVIRONMENTS ON EARTH, MOON, MARS AND IN SPACECRAFT USING PHITS. AB - Estimation of cosmic-ray doses is of great importance not only in aircrew and astronaut dosimetry but also in evaluation of background radiation exposure to public. We therefore calculated the cosmic-ray doses on Earth, Moon and Mars as well as inside spacecraft, using Particle and Heavy Ion Transport code System PHITS. The same cosmic-ray models and dose conversion coefficients were employed in the calculation to properly compare between the simulation results for different environments. It is quantitatively confirmed that the thickness of physical shielding including the atmosphere and soil of the planets is the most important parameter to determine the cosmic-ray doses and their dominant contributors. The comparison also suggests that higher solar activity significantly reduces the astronaut doses particularly for the interplanetary missions. The information obtained from this study is useful in the designs of the future space missions as well as accelerator-based experiments dedicated to cosmic-ray research. PMID- 29036713 TI - REVISION OF ISO 8529-REFERENCE NEUTRON RADIATIONS. AB - ISO Standard 8529, on Reference neutron radiations, is due for revision. This paper covers proposed changes to Part 1 which dates from 2001. The changes are mainly designed to improve the data on radionuclide source neutron spectra, but also include options for modifying the content, e.g. the section on reactor filtered beams. PMID- 29036714 TI - Accounting for technical noise in differential expression analysis of single-cell RNA sequencing data. AB - Recent technological breakthroughs have made it possible to measure RNA expression at the single-cell level, thus paving the way for exploring expression heterogeneity among individual cells. Current single-cell RNA sequencing (scRNA seq) protocols are complex and introduce technical biases that vary across cells, which can bias downstream analysis without proper adjustment. To account for cell to-cell technical differences, we propose a statistical framework, TASC (Toolkit for Analysis of Single Cell RNA-seq), an empirical Bayes approach to reliably model the cell-specific dropout rates and amplification bias by use of external RNA spike-ins. TASC incorporates the technical parameters, which reflect cell-to cell batch effects, into a hierarchical mixture model to estimate the biological variance of a gene and detect differentially expressed genes. More importantly, TASC is able to adjust for covariates to further eliminate confounding that may originate from cell size and cell cycle differences. In simulation and real scRNA seq data, TASC achieves accurate Type I error control and displays competitive sensitivity and improved robustness to batch effects in differential expression analysis, compared to existing methods. TASC is programmed to be computationally efficient, taking advantage of multi-threaded parallelization. We believe that TASC will provide a robust platform for researchers to leverage the power of scRNA-seq. PMID- 29036715 TI - CERN IRRADIATION FACILITIES. AB - CERN provides unique irradiation facilities for applications in dosimetry, metrology, intercomparison of radiation protection devices, benchmark of Monte Carlo codes and radiation damage studies to electronics. PMID- 29036716 TI - Reconsidering 'Set the People Free': Neoliberalism and Freedom Rhetoric in Churchill's Conservative Party. AB - It is often assumed that 'Hayekian' or 'neoliberal' influences lay behind Conservative attacks on socialism in 1945 and subsequent calls to 'set the people free' in 1950 and 1951. This assumption has had consequences for our understanding of late-1940s Conservatism and for wider interpretations of post war politics. Heeding recent calls to reconnect the inter-war and post-war parties and to pay closer attention to how opponents and contexts generate arguments, this article revisits senior Conservatives' rhetoric between 1945 and 1951 to break the link between neoliberal influence and freedom rhetoric. First, it argues that the rhetoric of 1945 was derived from a distinctly Conservative lineage of interwar argument and reflected strategies developed before the publication of F. A. Hayek's 'The Road to Serfdom'. Second, it demonstrates that senior Conservatives' emancipatory rhetoric in opposition after 1945 was neither a simple continuation of these themes nor primarily a response to the public's growing antipathy towards rationing and controls. Rather, such rhetoric was a complex response to Britain's immediate economic difficulties and the political challenges presented by austerity. Finally, the article sheds new light on the strategy that governed the party's campaigns in 1950 and 1951. Churchill and others' calls to 'set the people free' stemmed from a belief that the rhetorical opportunity lay in reconciling liberty with security. In that sense, the leadership had moved beyond begrudging compromises with the 'Attleean settlement' and was instead attempting to define a new identity within the parameters of the welfare state. PMID- 29036717 TI - EVALUATION OF OCCUPATIONAL RADIATION DOSE IN TRANSCATHETER AORTIC VALVE IMPLANTATION. AB - Occupational doses during fluoroscopy in interventional procedures vary largely (Kim et al. (Occupational radiation doses to operators performing cardiac catheterization procedures. Health Phys. 2008;94:211-227)). In transcatheter aortic valve implantation, the operators' positions and use of radiation shielding are particularly related to the entry choice on the patient's heart. This study evaluates how occupational doses depend on operator positioning during transfemoral and transaortal access. Occupational dosimetric readings were collected with electronic dosemeters on two cardiothoracic surgeons and one cardiologist during 31 procedures. The findings were significantly higher body doses and eye lens doses to the surgeons during transaortal access compared to transfemoral access. The median equivalent eye lens dose per procedure received by the cardiologists was 0.05-0.06 mSv; hence, the cardiologists should wear protective eye wear to prevent reaching the proposed annual dose limit of 20 mSv to the eye lens. Surgeons ought to use protective eye wear as well, and should only perform a restricted number of transcatheter aortic valve implantations with transaortal access annually. PMID- 29036718 TI - Glutamatergic Response to Heat Pain Stress in Schizophrenia. AB - Regulation of stress response involves top-down mechanisms of the frontal-limbic glutamatergic system. As schizophrenia is associated with glutamatergic abnormalities, we hypothesized that schizophrenia patients may have abnormal glutamatergic reactivity within the dorsal anterior cingulate cortex (dACC), a key region involved in perception of and reaction to stress. To test this, we developed a somatic stress paradigm involving pseudorandom application of safe but painfully hot stimuli to the forearm of participants while they were undergoing serial proton magnetic resonance spectroscopy to measure changes in glutamate and glutamine levels in the dACC. This paradigm was tested in a sample of 21 healthy controls and 23 patients with schizophrenia. Across groups, glutamate levels significantly decreased following exposure to thermal pain, while ratio of glutamine to glutamate significantly increased. However, schizophrenia patients exhibited an initial increase in glutamate levels during challenge that was significantly different from controls, after controlling for heat pain tolerance. Furthermore, in patients, the acute glutamate response was positively correlated with childhood trauma (r = .41, P = .050) and inversely correlated with working memory (r = -.49, P = .023). These results provide preliminary evidence for abnormal glutamatergic response to stress in schizophrenia patients, which may point toward novel approaches to understanding how stress contributes to the illness. PMID- 29036719 TI - ChannelsDB: database of biomacromolecular tunnels and pores. AB - ChannelsDB (http://ncbr.muni.cz/ChannelsDB) is a database providing information about the positions, geometry and physicochemical properties of channels (pores and tunnels) found within biomacromolecular structures deposited in the Protein Data Bank. Channels were deposited from two sources; from literature using manual deposition and from a software tool automatically detecting tunnels leading to the enzymatic active sites and selected cofactors, and transmembrane pores. The database stores information about geometrical features (e.g. length and radius profile along a channel) and physicochemical properties involving polarity, hydrophobicity, hydropathy, charge and mutability. The stored data are interlinked with available UniProt annotation data mapping known mutation effects to channel-lining residues. All structures with channels are displayed in a clear interactive manner, further facilitating data manipulation and interpretation. As such, ChannelsDB provides an invaluable resource for research related to deciphering the biological function of biomacromolecular channels. PMID- 29036720 TI - The Relationship Between Clinical and Personal Recovery in Patients With Schizophrenia Spectrum Disorders: A Systematic Review and Meta-analysis. AB - Patients describe experiencing personal recovery despite ongoing symptoms of psychosis. The aim of the current research was to perform a meta-analysis investigating the relationship between clinical and personal recovery in patients with schizophrenia spectrum disorders. A comprehensive OvidSP database search was performed to identify relevant studies. Correlation coefficients of the relationship between clinical and personal recovery were retrieved from primary studies. Meta-analyses were performed, calculating mean weighted effect sizes for the association between clinical and personal recovery, hope, and empowerment. Additionally, associations between positive, negative, affective symptoms, general functioning, and personal recovery were investigated. The results show that heterogeneity across studies was substantial. Random effect meta-analysis of the relationship between symptom severity and personal recovery revealed a mean weighted correlation coefficient of r = -.21 (95% CI = -0.27 to -0.14, P < .001). We found the following mean weighted effect size for positive symptoms r = -.20 (95% CI = -0.27 to -0.12, P < .001), negative symptoms r = -.24 (95% CI = -0.33 to -0.15, P < .001), affective symptoms r = -.34 (95% CI = -0.44 to -0.24, P < .001) and functioning r = .21 (95% CI = -0.09 to 0.32, P < .001). The results indicate a significant small to medium association between clinical and personal recovery. Psychotic symptoms show a smaller correlation than affective symptoms with personal recovery. These findings suggest that clinical and personal recovery should both be considered in treatment and outcome monitoring of patients with schizophrenia spectrum disorders. PMID- 29036722 TI - Home on the (expanding) range: evaluating the effectiveness of a novel host's induced defenses against the mountain pine beetle-fungal complex. PMID- 29036723 TI - Converting from Transdermal to Buccal Formulations of Buprenorphine: A Pharmacokinetic Meta-Model Simulation in Healthy Volunteers. AB - Objective: To develop a model to predict buprenorphine plasma concentrations during transition from transdermal to buccal administration. Design: Population pharmacokinetic model-based meta-analysis of published data. Methods: A model based meta-analysis of available buprenorphine pharmacokinetic data in healthy adults, extracted as aggregate (mean) data from published literature, was performed to explore potential conversion from transdermal to buccal buprenorphine. The time course of mean buprenorphine plasma concentrations following application of transdermal patch or buccal film was digitized from available literature, and a meta-model was developed using specific pharmacokinetic parameters (e.g., absorption rate, apparent clearance, and volumes of distribution) derived from analysis of pharmacokinetic data for intravenously, transdermally, and buccally administered buprenorphine. Results: Data from six studies were included in this analysis. The final transdermal absorption model employed a zero-order input rate that was scaled to reflect a nominal patch delivery rate and time after patch application (with decline in rate over time). The transdermal absorption rate constant became zero following patch removal. Buccal absorption was a first-order process with a time lag and bioavailability term. Simulations of conversion from transdermal 20 mcg/h and 10 mcg/h to buccal administration suggest that transition can be made rapidly (beginning 12 hours after patch removal) using the recommended buccal formulation titration increments (75-150 mcg) and schedule (every four days) described in the product labeling. Conclusions: Computer modeling and simulations using a meta model built from data extracted from publications suggest that rapid and straightforward conversion from transdermal to buccal buprenorphine is feasible. PMID- 29036721 TI - Blood-Based Protein Changes in Childhood Are Associated With Increased Risk for Later Psychotic Disorder: Evidence From a Nested Case-Control Study of the ALSPAC Longitudinal Birth Cohort. AB - The identification of early biological changes associated with the psychotic disorder (PD) is important as it may provide clues to the underlying pathophysiological mechanisms. We undertook the first proteomic profiling of blood plasma samples of children who later develop a PD. Participants were recruited from the UK Avon Longitudinal Study of Parents and Children (ALSPAC) cohort who also participated in psychiatric assessment interviews at age 18. Protein expression levels at age 11 were compared between individuals who developed PD at age 18 (n = 37) with population-based age-matched controls (n = 38). Sixty out of 181 plasma proteins profiled were found to be differentially expressed (P < .05) in children with an outcome of the PD. Thirty-four of these proteins were found to be differentially expressed following correction for multiple comparisons. Pathway analysis implicated the complement and coagulation cascade. A second, targeted proteomic approach was used to verify these findings in age 11 plasma from subjects who reported psychotic experiences at age 18 (n = 40) in comparison to age-matched controls (n = 66). Our findings indicate that the complement and coagulation system is dysregulated in the blood during childhood before the development of the PD. PMID- 29036724 TI - Etiology and Clinical Characteristics of Community-Acquired Pneumonia with Airway Malacia in Children. AB - Objective: The objective of this article is to study the etiology of community acquired pneumonia in children with airway malacia. Methods: We retrospectively reviewed the medical records of 428 pneumonia patients. All patients underwent bronchoscopy, and bronchoalveolar lavage samples were processed for microbiological assessment. Results: In a total of 428 cases reviewed, 60 were found to have airway malacia. Pathogens were identified in 44 of the 60 specimens (73.3%), with 32 being single-pathogen infections. The most common pathogen was respiratory syncytial virus (RSV; 20%). Mixed-pathogen infections were observed in 12 patients. Airway malacia patients were younger than those without malacia (10.5 vs. 50 months, respectively; p < 0.001). Compared with those without airway malacia, wheezing, cyanosis and admission to the pediatric intensive care unit were more common in children with airway malacia and their hospital stay was longer. Conclusion: RSV was the most common pathogen in those with airway malacia. Airway malacia was found to aggravate infectious pneumonia. PMID- 29036725 TI - AN INTERNATIONAL COOPERATION BY USING AN ALL-ENCOMPASSING PASSIVE RADON MONITOR. AB - The recently developed radon film-badge makes it possible to measure radon indoors, in soil, in water and/or in aqueous media (e.g. mud). As a result of its wide response linearity, this monitor has been successfully used to measure radon in-water with concentrations from 10 to ~10 000 Bq/L. By exploiting the unique characteristics of this badge, a mini-survey has been carried out by Health Canada in which radon in water was measured from 12 private wells, as well as in tap water originating from the Ottawa River. Due to the widespread interest of different laboratories in using these passive monitors, laboratories were provided with plastic films to construct their own badges by using in-house CR-39 detectors. Monitors were then irradiated by a known radon concentration at the National Institute of Radiation Metrology (ENEA)'s radon chamber and sent back to each laboratory for processing and counting. Even though these laboratories have been using different etching- and counting-procedures, the film-badge responses varied only within ~12%. PMID- 29036726 TI - CONTRIBUTION OF DIFFERENT PARTICLES MEASURED WITH TRACK ETCHED DETECTORS ONBOARD ISS. AB - Cosmic radiation consists of primary high-energy galactic and solar particles. When passing through spacecraft walls and astronauts' bodies, the spectrum becomes even more complex due to generating of secondary particles through fragmentation and nuclear interactions. Total radiation exposure is contributed by both these components. With an advantage, space research uses track etched detectors from the group of passive detectors visualizing the tracks of particles, in this case by etching. The detectors can discriminate between various components of cosmic radiation. A method is introduced for the separation of the different types of particles according to their range using track etched detectors. The method is demonstrated using detectors placed in Russian segment of the International Space Station in 2009. It is shown that the primary high energy heavy ions with long range contribute up to 56% of the absorbed dose and up to 50% to the dose equivalent. PMID- 29036728 TI - A Retrospective Study Evaluating the Effect of Low Doses of Perineural Dexamethasone on Ropivacaine Brachial Plexus Peripheral Nerve Block Analgesic Duration. AB - Objective: Examination of the effectiveness of perineural dexamethasone administered in very low and low doses on ropivacaine brachial plexus block duration. Design: Retrospective evaluation of brachial plexus block duration in a large cohort of patients receiving peripheral nerve blocks with and without perineural dexamethasone in a prospectively collected quality assurance database. Setting: A single academic medical center. Methods: A total of 1,942 brachial plexus blocks placed over a 16-month period were reviewed. Demographics, nerve block location, and perineural dexamethasone utilization and dose were examined in relation to block duration. Perineural dexamethasone was examined as none (0 mg), very low dose (2 mg or less), and low dose (greater than 2 mg to 4 mg). Continuous catheter techniques, local anesthetics other than ropivacaine, and block locations with fewer than 15 subjects were excluded. Associations between block duration and predictors of interest were examined using multivariable regression models. A subgroup analysis of the impact of receiving dexamethasone on block duration within each block type was also conducted using a univariate linear regression approach. Results: A total of 1,027 subjects were evaluated. More than 90% of brachial plexus blocks contained perineural dexamethasone (<=4 mg), with a median dose of 2 mg. Increased block duration was associated with receiving any dose of perineural dexamethasone (P < 0.0001), female gender (P = 0.022), increased age (P = 0.048), and increased local anesthetic dose (P = 0.01). In a multivariable model, block duration did not differ with very low- or low-dose perineural dexamethasone after controlling for other factors (P = 0.420). Conclusion: Perineural dexamethasone prolonged block duration compared with ropivacaine alone; however, duration was not greater with low-dose compared with very low-dose perineural dexamethasone. PMID- 29036727 TI - Economic, Labor, and Regulatory Moderators of the Effect of Individual Placement and Support Among People With Severe Mental Illness: A Systematic Review and Meta analysis. AB - As Individual Placement and Support (IPS) has become the international standard for vocational rehabilitation of adults with serious mental illness, researchers must consider the relationship between IPS and local environments. This meta analysis used mixed-effects meta-regressions to assess the impact of site-level moderators on the likelihood that IPS recipients, compared with recipients of alternative vocational services, achieved competitive employment. Potential moderators included change in gross domestic product (GDP), local unemployment and unionization rates, and indices describing employment protection regulations, level of disability benefits compensation, and efforts to integrate people with disabilities into the workforce. Regulatory moderators represent facilitators and barriers to employment that may reinforce or detract from the effectiveness of IPS. Across 30 sites drawn from 21 randomized controlled trials in 12 countries (33% in the United States), IPS recipients were 2.31 (95% CI 1.99-2.69) times more likely to find competitive employment than recipients of alternative vocational rehabilitation services. The significant competitive-employment rate advantage of IPS over control services increased in the presence of weaker employment protection legislation and integration efforts, and less generous disability benefits. Policy makers should recognize and account for the fact that labor and disability regulations can create an arrangement of incentives that reduces the relative efficacy of supported employment. PMID- 29036729 TI - Reversal of lung fibrosis: an unexpected finding in survivor of acute respiratory distress syndrome. PMID- 29036730 TI - Calculation and Validation of the Response Matrix for a Neutron Multisphere Spectrometer with an Indium Central Detector. AB - Expansion of accelerator technologies into different application areas brings the need for neutron-field measurements in their vicinity. The measurements of neutron energy spectra and neutron dose rates can be done with the aid of neutron multisphere spectrometers with passive neutron detectors. In addition to the usually used thermoluminescent detectors and gold activation foils, another activation material-indium-can be considered. This paper presents a design of such an indium-based neutron multisphere spectrometer. Its response matrix was calculated with Monte Carlo code MCNP5 in the energy interval from 0.001 eV to about 20 MeV. The response matrix was validated with an Am-Be standard neutron source. MAXED code was used for neutron energy spectra unfolding. The values of the neutron fluence rate and neutron ambient dose equivalent rate in a reference point were calculated. The properties and advantages of indium for use in neutron multisphere spectrometry are discussed. PMID- 29036732 TI - Predictors of Poor Outcome in Neonates with Pyogenic Meningitis in a Level-Three Neonatal Intensive Care Unit of Developing Country. AB - Background: The mortality of neonatal pyogenic meningitis is reduced to 10-15%, but morbidity is unchanged. Methods: Primary objective is to determine the outcome, i.e. death or abnormal neurological examination (NE) at discharge and abnormal developmental quotient (DQ) at 3 months. Secondary objective is to find predictors of poor outcome. Results: In all, 89 neonates enrolled, 10 expired and 24 neonates had abnormal NE at discharge. A total of 59 neonates came for follow up, 13 had DQ < 70. Prolonged shock (odds ratio, OR: 8.28; p = 0.001), coma (OR: 4.3; p = 0.001), seizures (OR: 14; p = 0.012), mechanical ventilation (OR: 18.55; p = 0.00), orogastric feeding (OR: 2.78; p = 0.042) and electroencephalography (EEG; OR: 9.6; p = 0.00) predicted poor short-term outcome. Abnormal NE at discharge (OR: 15.6; p = 0.001), EEG (OR = 10.60; p = 0.00) and brainstem-evoked reflex audiometry (OR = 37.20, p = 0.00) predicted a low DQ at 3 months. Mortality and morbidity of neonates with Pyogenic Meningitis (PM) were similar to that in developed countries. Outcome depended on severity of the disease and NE at discharge. PMID- 29036733 TI - [A rare differential diagnosis of jugulotympanic paraganglioma]. PMID- 29036731 TI - Rethinking Body Ownership in Schizophrenia: Experimental and Meta-analytical Approaches Show no Evidence for Deficits. AB - Schizophrenia is a severe psychiatric disorder, in which patients experience an abnormal sense of self. While deficits in sensorimotor self-representation (agency) are well documented in schizophrenia, less is known about other aspects of bodily self-representation (body ownership). Here, we tested a large cohort (N = 59) of chronic schizophrenia patients and matched controls (N = 30) on a well established body illusion paradigm, the Full Body Illusion (FBI). In this paradigm, changes in body ownership are induced through prolonged multisensory stimulation, in which participants are stroked on their back while seeing the stroking on the back of a virtual body. When the felt and seen stroking are synchronous, participants typically feel higher identification with the seen body as well as a drift in self-location towards it. However, when the stroking is asynchronous, no such changes occur. Our results show no evidence for abnormal body ownership in schizophrenia patients. A meta-analysis of previous work corroborates this result. Thus, while schizophrenia patients may be impaired in the sense of agency, their multisensory bodily self-representation, as tested here, seems to be unaffected by the illness. PMID- 29036734 TI - Benefit-Cost Analysis of Radiocesium Decorporation by a Prussian Blue Treatment and Stockpiling. AB - In the case of an attack by a "dirty bomb" with cesium-137 there is a risk of internal contamination. The excretion of cesium-137 can be enhanced by Prussian Blue (PB), and thus the committed effective dose be reduced. We analyzed the benefit and costs of PB decorporation treatment. We simulated the reduction of the radiological dose by PB treatment after cesium-137 incorporation by inhalation. The saving of life time was quantified using the monetary "value of a statistical life" (VSL). Treatment costs were based on the market price of PB in Germany. Moreover we considered the holding costs of stockpiling. The benefit of PB treatment increases with its duration up to about 90 days. If treatment initiation is delayed, the maximum achievable benefit is decreased. For a VSL of 1.646 million ?, the net benefit of a 90-days treatment started 1 day after the incorporation remains positive up to a stockpiling duration of 10 years. If starting PB treatment as late as the 180th day after incorporation, the costs will surpass the benefit. We conclude that a prompt decision making and early treatment initiation greatly impacts on the medical but also economic efficiency of a PB treatment. PMID- 29036735 TI - Facile Synthesis and Characterization of L-Aspartic Acid Coated Iron Oxide Magnetic Nanoparticles (IONPs) For Biomedical Applications. AB - Natural L-aspartic acid coated iron oxide magnetic nanoparticles (Asp@IONPs) were prepared by a one pot, in-situ and green co-precipitation method in an aqueous medium. Functionalized iron oxide magnetic nanoparticles (IONPs) were characterized by Vibrating Sample Magnetometer (VSM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) techniques. Cellular toxicity of IONPs was also investigated on HEK-293 cell lines. The results showed that the zeta potential of Asp@IONPs was about 21.1 mV and the average size was 17.80+/-3.09 nm. Cell toxicity results show that as prepared IONPs are biocompatible. Asp@IONPs show the possibility of using these nanoparticles in the development of in vitro and in vivo biomedical fields due to do not possess a toxic effect, good zeta-potential and related small and narrow size distribution. PMID- 29036737 TI - Hot Topics Issue. PMID- 29036736 TI - Pulmonary Hypertension in Patients with Congenital Diaphragmatic Hernia: Does Lung Size Matter? AB - PURPOSE: The relationship between pulmonary hypoplasia and pulmonary arterial hypertension (PHTN) in patients with congenital diaphragmatic hernia (CDH) remains ill-defined. We hypothesized that prenatal estimates of lung size would directly correlate with PHTN severity. METHODS: Infants with isolated CDH (born 2004-2015) at a single institution were included. Estimates of lung size included observed-to-expected LHR (o:eLHR) and %-predicted lung volumes (PPLV = observed/predicted volumes). The primary outcome was severity of PHTN (grade 0-3) on echocardiography performed between day of life 3 and 30. RESULTS: Among 62 patients included, there was 32% mortality and 65% ECMO utilization. PPLV (odds ratio [OR] = 0.94 per 1 grade in PHTN severity, 95% confidence interval [CI] = 0.89-0.98, p < 0.01) and o:eLHR (OR = 0.97, 95% CI = 0.94-0.99, p < 0.01) were significantly associated with PHTN grade. Among patients on ECMO, PPLV (OR = 0.92, 95% CI = 0.84-0.99, p = 0.03) and o:eLHR (OR = 0.95, 95% CI = 0.92-0.99, p = 0.01) were more strongly associated with PHTN grade. PPLV and o:eLHR were significantly associated with the use of inhaled nitric oxide (iNO) (OR = 0.90, 95% CI = 0.83-0.98, p = 0.01 and OR = 0.94, 95% CI = 0.91-0.98, p < 0.01, respectively) and epoprostenol (OR = 0.91, 95% CI = 0.84-0.99, p = 0.02 and OR = 0.93, 95% CI = 0.89-0.98, p < 0.01, respectively). CONCLUSION: Among infants with isolated CDH, PPLV, and o:eLHR were significantly associated with PHTN severity, especially among patients requiring ECMO. Prenatal lung size may help predict postnatal PHTN and associated therapies. PMID- 29036738 TI - Paternal Diet and Obesity: Effects on Reproduction. PMID- 29036739 TI - Investigational Medical Therapies for Endometriosis: Current Data and Future Trends. PMID- 29036740 TI - Pharmacologic Treatment of Polycystic Ovary Syndrome: Alternate and Future Paths. PMID- 29036742 TI - Acupuncture for Infertility in Women with Polycystic Ovary Syndrome: What Does It Add? PMID- 29036743 TI - Fresh versus Frozen Embryo Transfer in PCOS: Arguments for and Against. PMID- 29036744 TI - Robotics and Reproductive Surgery. PMID- 29036741 TI - The Effects of Aspirin in Gestation and Reproduction (EAGeR) Trial: A Story of Discovery. PMID- 29036746 TI - Erratum: Management of Endometriomas. PMID- 29036748 TI - [Not Available]. PMID- 29036745 TI - Best Practices in Counseling Young Female Cancer Survivors on Reproductive Health. PMID- 29036747 TI - Prevention of multidrug-resistant infections from contaminated duodenoscopes: Position Statement of the European Society of Gastrointestinal Endoscopy (ESGE) and European Society of Gastroenterology Nurses and Associates (ESGENA). AB - Patients should be informed about the benefits and risks of endoscopic retrograde cholangiopancreatography (ERCP)Only specially trained and competent personnel should carry out endoscope reprocessing.Manufacturers of duodenoscopes should provide detailed instructions on how to use and reprocess their equipment.In the case of modifications to their equipment, manufacturers should provide updated instructions for use.Detailed reprocessing protocols based on the manufacturer's instructions for use should clearly lay out the different reprocessing steps necessary for each endoscope model.Appropriate cleaning equipment should be used for duodenoscopes in compliance with the manufacturer's instructions for use. Only purpose-designed, endoscope type-specific, single-use cleaning brushes should be used, to ensure optimal cleaning. As soon as the endoscope is withdrawn from the patient, bedside cleaning should be performed, followed by leak testing, thorough manual cleaning steps, and automated reprocessing, in order to: . Remove debris from external and internal surfaces;. . Prevent any drying of body fluids, blood, or debris;. . Prevent any formation of biofilms.. In addition to the leak test, visual inspection of the distal end as well as regular maintenance of duodenoscopes should be performed according to the manufacturer's instructions for use, in order to detect any damage at an early stage.The entire reprocessing procedure in endoscope washer-disinfectors (EWDs) should be validated according to the European and International Standard, EN ISO 15883. Routine technical tests of EWDs should be performed according to the validation reports.Microbiological surveillance of a proportion of the department's endoscopes should be performed every 3 months, with the requirement that all endoscopes used in the unit are tested at least once a year.In the case of suspected endoscopy-related infection, the relevant device (e. g., endoscope, EWD) should be taken out of service until adequate corrective actions have been taken. Outbreaks should be managed by a multidisciplinary team, including endoscopy, hygiene, and microbiology experts, manufacturers, and regulatory bodies, according to national standards and/or laws. In the case of suspected multidrug-resistant organism (MDRO) outbreaks, close cooperation between the endoscopy unit and the clinical health provider is essential (including infection control departments and hospital hygienists). PMID- 29036749 TI - [Paediatrics in light of the Convention on the Rights of the Child]. AB - The United Nations Convention on the Rights of the Child not only grants comprehensive rights to children via international law, it also constitutes a legally binding framework under German federal law. With respect to health care, the convention establishes the "right of the child to the enjoyment of the highest attainable standard of health" and the principle that "the best interests of the child shall be a primary consideration" in all actions undertaken by public or private institutions. Here, some fundamental aspects of the convention and the monitoring of its implementation are summarized and current challenges in paediatric medicine in Germany are discussed in light of the convention. PMID- 29036750 TI - Does Postoperative Anticoagulation Therapy Lead to a Higher Success Rate for Microvascular Free-Tissue Transfer in the Head and Neck? A Systematic Review and Meta-Analysis. AB - BACKGROUND: Due to limited evidence, it is unclear whether postoperative anticoagulation therapy may lead to higher success rates for microvascular free flap surgery in the head and neck. This review evaluated whether postoperative anticoagulation therapy can lead to a better result in head and neck reconstruction. METHODS: PubMed, Embase, and the Cochrane Library were used to search for articles on the efficacy of postoperative antithrombotic therapy in free-flap transfer during head and neck reconstruction without language restrictions in February of 2017. A random-effects model was used to estimate the relative risk ratio (RR) with 95% confidence intervals (CIs). The measured outcomes were flap loss, thromboembolic events, and hematoma formation. RESULTS: A total of 2,048 free-flap surgery procedures in the head and neck were analyzed. There was no significant difference in the occurrence of flap loss and thromboembolic events in the anticoagulation group compared with the nonanticoagulation group (RR = 1.25, 95% CI = 0.85-1.81, p = 0.26; and RR = 1.05, 95% CI = 0.74-1.48, p = 0.79, respectively). The risk of hematoma was twice as high in the anticoagulation group than the nonanticoagulation group, which was statistically significant (RR = 2.02, 95% CI = 1.08-3.76, p = 0.03). CONCLUSION: The findings from our meta-analysis indicate that postoperative anticoagulation therapy barely decreases the risks of flap loss and thromboembolic events in free flap surgery in the head and neck. However, it may significantly increase the risk of hematoma formation. Considering the limitations of this meta-analysis, additional high-quality, multicenter, prospective, randomized controlled studies are needed to confirm these findings. PMID- 29036751 TI - [Diagnosis and Management of Vestibular Schwannomas - An Interdisciplinary Challenge]. AB - Vestibular schwannomas expand slowly in the internal auditory canal, in the cerebellopontine angle, inside the cochlear and the labyrinth. Larger tumors can displace and compress the brainstem. With an annual incidence of 1:100 000 vestibular schwannoma represent 6-7% of all intracranial tumors. In the cerebellopontine angle they are by far the most neoplasm with 90% of all lesions located in this region. Magnetic resonance imaging (MRI), audiometry, and vestibular diagnostics are the mainstays of the clinical workup for patients harboring tumors. The first part of this paper delivers an overview of tumor stages, the most common grading scales for facial nerve function and hearing as well as a short introduction to the examination of vestibular function.Upholding or improving quality of life is the central concern in counseling and treating a patient with vestibular schwannoma. Preservation of neuronal function is essential and the management options - watchful waiting, microsurgery and stereotactic radiation - should be custom-tailored to the individual situation of the patient. Continuing interdisciplinary exchange is important to monitor treatment quality and to improve treatment results. Recently, several manuscripts and reviews have been published on the topic of vestibular schwanomma. On the occasion of the 88th annual meeting of the German Society of Oto-rhino laryngology, Head and Neck surgery a special volume of the journal "HNO" will be printed. Hence this presentation has been designed to deviate from the traditional standard which commonly consists of a pure literature review. The current paper was conceptually woven around a series of interdisciplinary cases which outlines examples for every stage of the disease that show characteristic results for management options to date. Systematic clinical decision pathways have been deduced from our experience and from results reported in the literature. These pathways are graphically outlined after the case presentations. Important criteria for decision making are size and growth rate of the tumor, hearing of the patient and the probability of total tumor resection with preservation of hearing and facial nerve function, age and co-morbidity of the patient, best possible control of vertigo and tinnitus and last but not least the patient's preference and choice. In addition to this, the experience and the results of a given center with each treatment modality will figure in the decision making process.We will discuss findings that are reported in the literature regarding facial nerve function, hearing, vertigo, tinnitus, and headache and reflect on recent studies on their influence on the patient's quality of life. Vertigo plays an essential role in this framework since it is an independent predictor of quality of life and a patient's dependence on social welfare.Pathognomonic bilateral vestibular schwannoma that occur in patients suffering from neurofibromatosis typ-2 (NF2) differ from spontaneous unilateral tumors in their biologic behavior. Treatment of neurofibromatosis type-2 patients requires a multidisciplinary team, especially because of the multitude of separate intracranial and spinal lesions.Off-label chemotherapy with Bevacizumab can stabilize tumor size of vestibular schwannomas and even improve hearing over longer periods of time. Hearing rehabilitation in NF2 patients can be achieved with cochlea and auditory brainstem implants. PMID- 29036752 TI - Breast Cancer Screening: Updated Recommendations of the Brazilian College of Radiology and Diagnostic Imaging, Brazilian Breast Disease Society, and Brazilian Federation of Gynecological and Obstetrical Associations. PMID- 29036753 TI - Erratum: Physical Activity during Pregnancy: Recommendations and Assessment Tools. PMID- 29036754 TI - Patellofemoral Cartilage Restoration: Indications, Techniques, and Outcomes of Autologous Chondrocytes Implantation, Matrix-Induced Chondrocyte Implantation, and Particulated Juvenile Allograft Cartilage. AB - Focal chondral defects are common in the patellofemoral (PF) joint and can significantly impair the quality of life. The autologous chondrocytes implantation (ACI) technique has evolved over the past 20 years: the first generation technique involves the use of a periosteal patch, the second generation technique (collagen-cover) uses a type I/III collagen membrane, and the newest third-generation technique seeds and cultivates the collagen membrane with chondrocytes prior to implantation and is referred to as matrix-induced autologous chondrocyte implantation. Particulated juvenile allograft cartilage (PJAC) (DeNovo NT) is minced cartilage allograft from juvenile donors. A thorough physical exam is important, especially for issues affecting the PF joint, to isolate the location and source of pain, and to identify associated pathologies. Imaging studies allow further characterization of the lesions and identification of associated pathologies and alignment. Conservative management should be exhausted before proceeding with surgical treatment. Steps of surgical treatment are diagnostic arthroscopy and biopsy, chondrocytes culture and chondrocyte implantation for the three generations of ACI, and diagnostic arthroscopy and implantation for PJAC. The techniques and their outcomes will be discussed in this article. PMID- 29036755 TI - Use of Fresh Osteochondral Allografts in the Patellofemoral Joint. AB - Fresh osteochondral allograft (OCA) transplantation has become a mainstay for the treatment of osteochondral defects in the tibiofemoral joint. With excellent outcomes and high survival times, this technology has recently become more interesting for use in the patellofemoral (PF) joint. This review article will point out the historical difficulties that the use of fresh OCA poses. With newer surgical approaches and a better understanding of the mechanical requirements of the PF joint, the use of OCA transplantation has shown increasingly better results. Illustrating the technique for the preparation and implantation of single plug allografts and bulk allografts to the trochlea and patella as well as the analysis of the available literature, we point out the current state of the art as well as potentially achievable long-term results. Finally, we will point out emerging technology seeking to further develop the use of allograft technology in patellofemoral chondral defects. PMID- 29036756 TI - Acupuncture or acupressure for induction of labour. AB - BACKGROUND: This is one of a series of reviews of methods of cervical ripening and labour induction. The use of complementary therapies is increasing. Women may look to complementary therapies during pregnancy and childbirth to be used alongside conventional medical practice. Acupuncture involves the insertion of very fine needles into specific points of the body. Acupressure is using the thumbs or fingers to apply pressure to specific points. The limited observational studies to date suggest acupuncture for induction of labour has no known adverse effects to the fetus, and may be effective. However, the evidence regarding the clinical effectiveness of this technique is limited. OBJECTIVES: To determine, from the best available evidence, the effectiveness and safety of acupuncture and acupressure for third trimester cervical ripening or induction of labour. SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 November 2016), PubMed (1966 to 25 November 2016), ProQuest Dissertations & Theses (25 November 2016), CINAHL (25 November 2016), Embase (25 November 2016), the WHO International Clinical Trials Registry Portal (ICTRP) (3 October 2016), and bibliographies of relevant papers. SELECTION CRITERIA: Randomised controlled trials comparing acupuncture or acupressure, used for third trimester cervical ripening or labour induction, with placebo/no treatment or other methods on a predefined list of labour induction methods. DATA COLLECTION AND ANALYSIS: Two review authors independently assessed trials for inclusion and risk of bias, extracted data, and checked them for accuracy. The quality of the evidence was assessed using GRADE. MAIN RESULTS: This updated review includes 22 trials, reporting on 3456 women. The trials using manual or electro-acupuncture were compared with usual care (eight trials, 760 women), sweeping of membranes (one trial, 207 women), or sham controls (seven trials, 729 women). Trials using acupressure were compared with usual care (two trials, 151 women) or sham controls (two trials, 239 women). Many studies had a moderate risk of bias.Overall, few trials reported on primary outcomes. No trial reported vaginal delivery not achieved within 24 hours and uterine hyperstimulation with fetal heart rate (FHR) changes. Serious maternal and neonatal death or morbidity were only reported under acupuncture versus sham control. Acupuncture versus sham control There was no clear difference in caesarean sections between groups (average risk ratio (RR) 0.80, 95% confidence interval (CI) 0.56 to 1.15, eight trials, 789 women; high-quality evidence). There were no reports of maternal death or perinatal death in the one trial that reported this outcome. There was evidence of a benefit from acupuncture in improving cervical readiness for labour (mean difference (MD) 0.40, 95% CI 0.11 to 0.69, one trial, 125 women), as measured by cervical maturity within 24 hours using Bishop's score. There was no evidence of a difference between groups for oxytocin augmentation, epidural analgesia, instrumental vaginal birth, meconium-stained liquor, Apgar score < 7 at five minutes, neonatal intensive care admission, maternal infection, postpartum bleeding greater than 500 mL, time from the trial to time of birth, use of induction methods, length of labour, and spontaneous vaginal birth. Acupuncture versus usual care There was no clear difference in caesarean sections between groups (average RR 0.77, 95% CI 0.51 to 1.17, eight trials, 760 women; low-quality evidence). There was an increase in cervical maturation for the acupuncture (electro) group compared with control (MD 1.30, 95% CI 0.11 to 2.49, one trial, 67 women) and a shorter length of labour (minutes) in the usual care group compared to electro-acupuncture (MD 124.00, 95% CI 37.39 to 210.61, one trial, 67 women).There appeared be a differential effect according to type of acupuncture based on subgroup analysis. Electro-acupuncture appeared to have more of an effect than manual acupuncture for the outcomes caesarean section (CS), and instrumental vaginal and spontaneous vaginal birth. It decreased the rate of CS (average RR 0.54, 95% CI 0.37 to 0.80, 3 trials, 327 women), increased the rate of instrumental vaginal birth (average RR 2.30, 95%CI 1.15 to 4.60, two trials, 271 women), and increased the rate of spontaneous vaginal birth (average RR 2.06, 95% CI 1.20 to 3.56, one trial, 72 women). However, subgroup analyses are observational in nature and so results should be interpreted with caution.There were no clear differences between groups for other outcomes: oxytocin augmentation, use of epidural analgesia, Apgar score < 7 at 5 minutes, neonatal intensive care admission, maternal infection, perineal tear, fetal infection, maternal satisfaction, use of other induction methods, and postpartum bleeding greater than 500 mL. Acupuncture versus sweeping if fetal membranes One trial of acupuncture versus sweeping of fetal membranes showed no clear differences between groups in caesarean sections (RR 0.64, 95% CI 0.34 to 1.22, one trial, 207 women, moderate-quality evidence), need for augmentation, epidural analgesia, instrumental vaginal birth, Apgar score < 7 at 5 minutes, neonatal intensive care admission, and postpartum bleeding greater than 500 mL. Acupressure versus sham control There was no evidence of benefit from acupressure in reducing caesarean sections compared to control (RR, 0.94, 95% CI 0.68 to 1.30, two trials, 239 women, moderate-quality evidence). There was no evidence of a clear benefit in reduced oxytocin augmentation, instrumental vaginal birth, meconium-stained liquor, time from trial intervention to birth of the baby, and spontaneous vaginal birth. Acupressure versus usual care There was no evidence of benefit from acupressure in reducing caesarean sections compared to usual care (RR 1.02, 95% CI 0.68 to 1.53, two trials, 151 women, moderate-quality evidence). There was no evidence of a clear benefit in reduced epidural analgesia, Apgar score < 7 at 5 minutes, admission to neonatal intensive care, time from trial intervention to birth of the baby, use of other induction methods, and spontaneous vaginal birth. AUTHORS' CONCLUSIONS: Overall, there was no clear benefit from acupuncture or acupressure in reducing caesarean section rate. The quality of the evidence varied between low to high. Few trials reported on neonatal morbidity or maternal mortality outcomes. Acupuncture showed some benefit in improving cervical maturity, however, more well-designed trials are needed. Future trials could include clinically relevant safety outcomes. PMID- 29036757 TI - A Case of Medullary Infarction Presented Initial Symptoms Similar to Meniere's Disease. AB - Fluctuating hearing loss and vertigo are the typical presentations of Meniere's disease. However, it is unusual that fluctuating hearing loss and vertigo are caused by vertebral artery occlusion or cerebral infarction. Here, we described the case of a 54-year-old male patient with hypertension and diabetes mellitus who presented with fluctuating hearing loss in his left ear and severe whirling type dizziness without associated neurological signs or symptoms. Temporal magnetic resonance imaging (MRI) was normal. He was diagnosed with a possible Meniere's disease and started conservative treatment. Eight years later, the patient developed dysarthria and left-side weakness. Brain MRI revealed right anterior medullary infarction, and cerebral angiography showed occlusion of the right vertebral artery. In this case, we attempted to review the initial imaging study and reported the characteristics of the case. PMID- 29036758 TI - Comparison of Single-Task versus Dual-Task for Listening Effort. AB - BACKGROUND AND OBJECTIVES: Depending on the kind of task and/or material, listeners sometimes need to pay attention to understand communication. The present study aimed to estimate a listener's amount of effort needed to understand communication by using recognition score and response time as a function of signal-to-noise ratio (SNR) and to confirm his/ her task dependency for listening effort. SUBJECTS AND METHODS: Forty-eight young adults with normal hearing participated in the study. As stimuli, Korean Speech Perception in Noise test without a question tag and three consecutive digits were used for sentence recognition (or single-task) and arithmetic (or dual-task), respectively. Both tasks were measured in quiet and under four SNR (i.e., 0, -4, -8, -12 dB) conditions. Their outcomes were analyzed and compared in terms of percent correct and response time. RESULTS: Sentence recognition scores and arithmetic scores decreased as the level of noise increased. Response time for sentence recognition decreased as noise increased, whereas the response time for arithmetic increased as noise increased. In addition, there was a negative correlation between error percent and response time in the sentence recognition. Conversely, a positive correlation between error percent and response time appeared in the arithmetic test. CONCLUSIONS: Listening effort showed a different pattern based on the kind of task, single vs. dual, while the dual-task required greater effort from the listener. PMID- 29036759 TI - Can A Sudden Sensorineural Hearing Loss Occur Due to Miliary Tuberculosis? AB - Miliary tuberculosis is a severe form of tuberculosis resulting from dissemination of Mycobacterium tuberculosis bacilli. Since symptoms appearing in patients due to miliary TB are diverse and atypical, depending on the site of invasion, early diagnosis and treatment are important. A paradoxical response of tuberculosis is a rare phenomenon and it can be a clinical difficulty to treatment especially when involving the central nervous system. We present a case report with a review of related literature about the patient who developed sudden hearing loss due to tuberculosis infection in vestibulocochlear area. PMID- 29036760 TI - The effects of downhill and uphill exercise training on osteogenesis-related factors in ovariectomy-induced bone loss. AB - PURPOSE: Recent evidence suggests that regular exercise training plays a decisive role in maintaining homeostasis and promoting muscle and skeletal formation. However, the effect of downhill exercise training on osteogenesis-related factors is not well understood. METHODS: Thus, we investigated the effect of uphill and downhill training on ovariectomy (OVX)-induced bone loss. After ovary removal, the exercise method performed included uphill (16 m/min, +15 degrees ) and downhill training (16 m/min, -15 degrees ) for 60 min/day and 5 days/week, respectively, for 8 weeks. RESULTS: Our results showed that both uphill and downhill training significantly decreased the body weight, total cholesterol, and creatine kinase (CK) levels in the context of OVX-induced bone loss. On the contrary, levels of an osteogenesis indicator, osteocalcin and alkaline phosphatase were elevated. Consequently, the uphill and downhill training reduced OVX- induced bone loss in the distal femoral metaphysis. Likewise, the bone microstructure in OVX-induced bone loss was enhanced upon training. In particular, the inhibition of RANKL-induced osteoclast formation and osteoclast specific gene expression improved upon downhill training compared to uphill training. CONCLUSION: These results suggest that the uphill and downhill exercise types appeared to positively affect the expression of osteogenesis-related factors along with bone density and microstructure. Particularly, the downhill training has more beneficial effects on the maintenance of homeostasis during bone formation. PMID- 29036761 TI - Effects of conjugated linoleic acid/n-3 and resistance training on muscle quality and expression of atrophy-related ubiquitin ligases in middle-aged mice with high fat dietinduced obesity. AB - PURPOSE: To investigate the effects of conjugated linoleic acid (CLA)/n-3 supplements and resistance exercise training (RT) for 20 weeks on muscle quality and genes related to protein synthesis/degradation in middle-aged mice with high fat diet (HFD)-induced obesity. METHODS: Nine-month-old C57BL/6 male mice were randomly assigned to five groups: 1) normal diet (C), 2) high-fat diet (H), 3) H+RT (HRT), 4) H+CLA/n-3 (H-CN), and 5) H+RT+CLA/n-3 (H-RTCN). HFD groups were given a diet containing 60% fat for 20 weeks, and exercised groups underwent progressive RT using weighted ladder climbing. The CLA/n-3 mixed diet contained 1% CLA and 1% n-3. Grip strength was assessed, and triceps were removed. RT-PCR was used to analyze transcript levels. RESULTS: Grip strength of the H group was significantly lower than that of the C group; however, those in the H-CN, H-RT, and H-RTN groups were significantly greater than that in the H group. However, the muscle quality was significantly greater only in the H-RT group compared with the H and H-CN groups. Akt expression decreased in the H-CN, H-RT, and H-RTCN groups compared with those in the C and H groups, whereas mammalian target of rapamycin expression increased in the H, H-CN, H-RT, and H-RTCN groups compared with that in the C group. However, atrogin1 was significantly downregulated in the H-RTCN group compared with that in the H and H-CN groups, and MuRF1 expression was also decreased in the H-RT and H-RTCN groups. Interestingly, atrogin1 and MuRF1 were downregulated in the H-RTCN group compared with that in the H-CN group. CONCLUSION: HFD-mediated gene expression involved in protein degradation was attenuated following 20-week RT with CLA/n-3. Furthermore, RT with or without CLA/n-3 improved grip strength and muscle quality in middle-aged mice during HFD. Therefore, RT with CLA/n-3 during HFD may improve muscle strength and quality by suppressing protein degradation. PMID- 29036762 TI - Low-intensity aerobic exercise training: inhibition of skeletal muscle atrophy in high-fat-diet-induced ovariectomized rats. AB - PURPOSE: Postmenopausal women are highly susceptible to diseases, such as obesity, type 2 diabetes, osteoporosis, or skeletal muscle atrophy and many people recognize the need for regular physical activity. Aerobic exercise training is known to improve the oxidative capacity and insulin sensitivity of skeletal muscles. This study aimed to investigate the role of low-intensity aerobic exercise training on skeletal muscle protein degradation or synthesis in the plantaris muscles of high-fat-fed ovariectomized rats. METHODS: Ovariectomized female rats were divided into two groups: a high-fat diet sedentary group (HFD), and a high-fat diet-aerobic exercise group (HFD+EX). The exercise group exercised aerobically on a treadmill 5 days/week for 8 weeks. The rats progressively ran 30 min/day at 15 m/min, up to 40 min/day at 18 m/min, 0% slope, in the last 4 weeks. RESULTS: Although aerobic exercise led to significantly increased AMP-activated protein kinase (AMPK) phosphorylation at Thr172, phosphorylation of the mammalian target of rapamycin (mTOR) substrate Thr389 S6K1 level did not decrease. Additionally, even though Akt activity did not increase at Ser473, the atrogin-1 level significantly decreased in the exercise group compared to the non-exercise group. Immunohistochemical staining revealed that high-fat-induced TSC2 protein expression was eliminated in response to aerobic exercise. CONCLUSION: These results suggest that aerobic exercise can inhibit skeletal muscle protein degradation, but it cannot increase protein synthesis in the plantaris muscle of high-fat-fed ovariectomized rats. Our findings have implications in understanding skeletal muscle mass maintenance with low intensity aerobic exercise in post-menopausal women. PMID- 29036763 TI - Effect of treadmill exercise on skeletal muscle autophagy in rats with obesity induced by a high-fat diet. AB - PURPOSE: This study aimed to investigate the effects of treadmill exercise on body weight, blood biochemistry, and autophagy. METHODS: Triglyceride, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, insulin, and glucose levels were measured, the Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) score was calculated, and the soleus muscle was analyzed for autophagy-related factors (Beclin-1, p62, LC3, Lamp-2) in rats with obesity induced by a high-fat diet. Eight-week-old Sprague Dawley rats were fed a high-fat diet for 35 weeks and then subjected to 10 weeks of treadmill exercise. The experimental group was divided into a Normal Diet-Sedentary (ND SED, n=8) group, an (High-Fat Diet-Sedentary (HF-SED, n=8) group, and an High-Fat Diet + Treadmill Exercise (HF-TE, n=8) group. The intensity of treadmill exercise was set as 8 m/min for 5 min, 11 m/min for 5 min, 15 m/min for 20 min, and 11 m/min for the last 5 minutes. A glucose tolerance test was performed at the 2nd and 8th week of exercise by sampling of tail blood. RESULTS: With endurance exercise, the HFTE group showed a significant decrease in body weight, with improved blood biochemical indices and HOMA-IR scores, in comparison with the HF SED group. However, there was no significant difference in Beclin-1, p62, LC3, and Lamp-2 proteins as measured by autophagic flux in the soleus muscle. CONCLUSION: Treadmill exercise induced improvements in body weight, body fat, and biochemical indicators of obesity and Type 2 diabetes, but had no effect on autophagy in soleus muscle. PMID- 29036764 TI - Hippotherapy and neurofeedback training effect on the brain function and serum brain-derived neurotrophic factor level changes in children with attention deficit or/and hyperactivity disorder. AB - PURPOSE: The purpose of this study was to investigate the effect of hippotherapy and electroencephalography (EEG) neurofeedback on brain function and blood brain derived neurotrophic factor (BDNF) level in children with attention-deficit or/and hyperactivity disorder (ADHD). METHODS: Sixteen children with ADHD participated in this study and were randomly divided into 2 groups, a 1-time hippotherapy group (W1G, n = 8) and a 2-time hippotherapy group (W2G, n = 8). All the participants attended 8 weeks of hippotherapy program in the primary training, and then 7 children with ADHD attended 8 weeks of hippotherapy program combined with neurofeedback training in the secondary training. Blood BDNF levels were measured, and functional magnetic resonance imaging (fMRI) was performed. The EEG neurofeedback training program was used to train and measure psychological factors. RESULTS: The combined effect of hippotherapy and neurofeedback on BDNF level showed a decreased tendency in W1G (pretraining, 1766.03 +/- 362.54 pg/ml; posttraining, 1630.65 +/- 276.70 pg/ml). However, the BDNF level of W2G showed an increased tendency (pretraining, 1968.28 +/- 429.08 pg/ml; posttraining, 1976.28 +/- 425.35 pg/ml). Moreover, combined training showed a significant group x repetition interaction in W1G (pretraining, 1436.57 +/- 368.76 pg/ml; posttraining, 1525.23 +/- 346.22 pg/ml; F = 3.870, p = 0.039). fMRI results showed that the left thalamus activity in both groups had a decreased tendency and a significantly lower change in W2G than in W1G (p < 0.05). CONCLUSION: This study confirmed a significant increase in blood BDNF level after combined training, which may induce brain function improvement in children with ADHD. PMID- 29036765 TI - Development of an anaerobic threshold (HRLT, HRVT) estimation equation using the heart rate threshold (HRT) during the treadmill incremental exercise test. AB - PURPOSE: The purpose of this study was to develop a regression model to estimate the heart rate at the lactate threshold (HRLT) and the heart rate at the ventilatory threshold (HRVT) using the heart rate threshold (HRT), and to test the validity of the regression model. METHODS: We performed a graded exercise test with a treadmill in 220 normal individuals (men: 112, women: 108) aged 20-59 years. HRT, HRLT, and HRVT were measured in all subjects. A regression model was developed to estimate HRLT and HRVT using HRT with 70% of the data (men: 79, women: 76) through randomization (7:3), with the Bernoulli trial. The validity of the regression model developed with the remaining 30% of the data (men: 33, women: 32) was also examined. RESULTS: Based on the regression coefficient, we found that the independent variable HRT was a significant variable in all regression models. The adjusted R2 of the developed regression models averaged about 70%, and the standard error of estimation of the validity test results was 11 bpm, which is similar to that of the developed model. CONCLUSION: These results suggest that HRT is a useful parameter for predicting HRLT and HRVT. PMID- 29036766 TI - Resistance training increases fibroblast growth factor-21 and irisin levels in the skeletal muscle of Zucker diabetic fatty rats. AB - PURPOSE: Although the fibroblast growth factor-21 (FGF-21) and irisin roles are well demonstrated in metabolic disease, there have been no reports investigating the effect of resistance exercise on FGF-21 and irisin levels in diabetic skeletal muscles. Therefore, this study aimed to investigate the change of FGF-21 and irisin levels in various skeletal muscles, and their association with muscle strength, following 8 weeks of resistance training using Zucker diabetic fatty rats (type 2 diabetic animal models). METHODS: Twenty-four male lean (Zucker lean control, ZLC) and diabetic (Zucker diabetic fatty, ZDF) rats (age, 8 weeks old) were separated into 3 groups, lean control (ZLC-Con, n=8), diabetic control (ZDF Con, n=8), and diabetic exercise-trained groups (ZDF-Ex, n=8). The rats in ZDF-Ex were trained to climb a 1-m vertical (85 degrees inclined) ladder with weights. Resistance training was performed with 10 repetitions/day for 12 weeks (3 days/week). The skeletal muscle levels of FGF-21 and irisin were measured using enzyme-linked immunosorbent assays. RESULTS: The levels of FGF-21 in the soleus (SOL) and extensor digitorum longus muscles of ZDF-Ex were higher (p<0.05) compared to levels in ZDF-Con. Additionally, we found a significantly higher irisin level in the SOL muscles of ZDF-Ex compared to that in ZDF-Con. Moreover, we found that the levels of FGF-21 (R=0.532, p=0.02) and irisin (R=0.498, p=0.03) had significant correlations with grip strength. CONCLUSION: Based on these results, resistance training may be an efficient intervention for increasing FGF 21 and irisin levels in type 2 diabetic (T2DM) skeletal muscles. PMID- 29036767 TI - The role of glycation in the pathogenesis of aging and its prevention through herbal products and physical exercise. AB - PURPOSE: Advanced glycation end products (AGEs) are non-enzymatic modifications of proteins or lipids after exposure to sugars. In this review, the glycation process and AGEs are introduced, and the harmful effects of AGEs in the aging process are discussed. METHODS: Results from human and animal studies examining the mechanisms and effects of AGEs are considered. In addition, publications addressing means to attenuate glycation stress through AGE inhibitors or physical exercise are reviewed. RESULTS: AGEs form in hyperglycemic conditions and/or the natural process of aging. Numerous publications have demonstrated acceleration of the aging process by AGEs. Exogenous AGEs in dietary foods also trigger organ dysfunction and tissue aging. Various herbal supplements or regular physical exercise have beneficial effects on glycemic control and oxidative stress with a consequent reduction of AGE accumulation during aging. CONCLUSION: The inhibition of AGE formation and accumulation in tissues can lead to an increase in lifespan. PMID- 29036769 TI - The management of irregular bleeding in women using contraception. AB - BACKGROUND: The pattern of menstrual bleeding seen in women during their reproductive years is the result of a finely tuned balance be-tween endogenous oestrogens, which stimulate the endometrial lining, and progesterone, which temporarily maintains that lining in anticipation of a pregnancy. Many women have expectations of a 'normal monthly' cycle, and may be wary of any-thing that has the potential to disrupt its regularity. From a clinical perspective, any alteration in vaginal bleeding may indicate underlying pathology, and lead to further investigation and management. OBJECTIVE: The aim of this article is to provide a practical approach to the investigation and management of altered vaginal bleeding patterns in women using various methods of contraception. DISCUSSION: Around 70% of Australian women of reproductive age use some form of contraception. Any discussion of 'normal bleeding' becomes even more complex given that modern contraceptive methods almost inevitably modify the pattern of bleeding experienced by the user. PMID- 29036768 TI - LARCs as first-line contraception - What can general practitioners advise young women? AB - BACKGROUND: The use of long-acting reversible contraceptives (LARCs) is globally accepted as a strategy that is successful in decreasing rates of unintended pregnancy, especially in very young women. Currently, Australia has very low uptake rates of LARC. OBJECTIVE: The aim of this paper is to explore the latest information on using LARCs as first-line contraception in young women. DISCUSSION: Low uptake of LARCs may be related to Australia's prevailing cultural norm of oral contraception, and practitioner and patient misperceptions of the safety and efficacy of LARC, which have been dispelled in recent years. LARCs are widely recommended by professional bodies and the World Health Organization (WHO) as first-line contraception for young women as they are safe, effective and reversible. Young women should be offered the choice of a LARC as part of a fully informed decision for their first form of contraception. PMID- 29036770 TI - Emergency contraception: Oral and intrauterine options. AB - BACKGROUND: Emergency contraception can be used to prevent pregnancy where contraception has not been used, or there has been contraceptive misuse or failure. Australian women have three options for emergency contraception: two types of oral pills (levonorgestrel [LNG]-containing pill and ulipristal acetate [UPA]) and the copper intrauterine device (IUD). Both pills are available from pharmacies without prescription, whereas the copper IUD requires insertion by a trained provider. OBJECTIVE: The objective of this article is to describe the indications, efficacy and contraindications for use of the three emergency contraceptive methods available in Australia. DISCUSSION: Emergency contraception can potentially reduce the risk of unplanned pregnancies. The oral methods have similar side effects, but UPA is more effective than LNG and can be used up to five days after intercourse. The copper IUD is the most effective method, and provides ongoing contraception for up to 10 years. Factors to consider when recommending one option over another include time since unprotected sex, body mass index and use of enzyme-inducing medicines. PMID- 29036771 TI - Oral hormonal contraception in special circumstances. AB - BACKGROUND: Despite the general consensus that long-acting reversible contraceptives (LARCs) are the most appropriate choice of contraception for most women, there are special circumstances when the contraceptive and non contraceptive needs of the patient are met by oral methods. OBJECTIVE: By using case histories, we seek to demonstrate the medical and practical complexities in managing contraceptive needs that may result in oral contraception being the most appropriate choice. The cases also illustrate the resources available to enable evidence-based management. DISCUSSION: Concurrent medical conditions and non contraceptive benefits of oral contraceptive methods will see the continued use of these medications for a significant minority of women. A comprehensive knowledge of the rapidly developing evidence regarding medical eligibility and indications for usage is required. Reference to the already highly developed and easily accessible evidence bases ensures best practice for the women and families who seek advice. PMID- 29036773 TI - A young woman with yellow hands and secondary amenorrhoea. PMID- 29036772 TI - Non-invasive prenatal testing. AB - BACKGROUND: Non-invasive prenatal testing (NIPT), also known as cell-free DNA testing and non-invasive prenatal screening (NIPS), is an important addition to the range of screening tests for fetal chromosomal abnormalities. For trisomy 21 in particular, NIPT is superior to other screening modalities. However, NIPT has limitations and complexities that requesting clinicians and their patients should understand. OBJECTIVE: This review article will briefly describe the technical basis of NIPT assays and compare the performance characteristics of NIPT with existing screening tests. The clinical use of NIPT will also be discussed. DISCUSSION: NIPT is now an established option for antenatal screening for trisomy 21, 18, 13 and other selected chromosomal abnormalities. If used appropriately, it increases the detection rate for fetal chromosomal abnormalities, while decreasing the number of invasive tests required. An understanding of the scientific basis of NIPT, and the appropriate clinical use and limitations, will enable medical practitioners to provide optimal antenatal screening. PMID- 29036774 TI - A suspicious haematoma. PMID- 29036775 TI - Subcutaneous finger nodules. PMID- 29036777 TI - Growing and retaining general practice research leaders in Australia: How can we do better? AB - BACKGROUND: The aim of this study was to explore the experiences of Australian general practitioners (GPs) with a Doctor of Philosophy (PhD) about their choice to abandon or pursue an academic career. METHODS: A qualitative study of 18 GPs (PhD obtained between 2006 and 2016) was conducted. Semi-structured telephone interviews were transcribed and analysed using concurrent thematic analysis. RESULTS: General practice researchers faced insecure career pathways. They often work in isolation, there is a lack of critical mass, and research was often described as a hobby (ie unfunded, done from home). Solutions included expanding academic general practice registrar positions to include advanced research training, building professional networks, mentoring, and better marketing of general practice research. DISCUSSION: Focused investment in developing clear and sustainable career pathways is essential to nurture and retain general practice researchers and research leaders. The research culture and professional standing of general practice researchers also need to improve. Support from professional bodies and colleagues, and enabling research collaborations, are key. PMID- 29036776 TI - Lifestyle risk factors and corresponding levels of clinical advice and counselling in general practice. AB - BACKGROUND: The objective of this study was to examine prevalence rates of lifestyle risk factors in the Western Victorian Primary Health Network (WV PHN) general practice patient population and the corresponding levels of clinical advice and counselling. METHODS: Analysed data from the Bettering the Evaluation and Care of Health (BEACH) program from April 2011 to March 2015 were examined, providing a comparison of three geographical areas of general practice patients: WV PHN, Victoria and Australia. RESULTS: Rates of clinical advice and counselling for diet and exercise provided by general practitioners (GPs) in the WV PHN network were significantly lower than Victorian and Australian rates, despite the region's higher obesity rates. Smoking rates were higher in the WV PHN compared with Australia, but there was no difference in the levels of smoking cessation advice disseminated. Across all regions, one in four patients drank alcohol at hazardous levels. DISCUSSION: GPs in rural practice require further support, encouragement and resources to provide diet and exercise advice to their patients more frequently. PMID- 29036778 TI - Electronic clinical decision support tool for the evaluation of cardiovascular risk in general practice: A pilot study. AB - BACKGROUND: Cardiovascular disease (CVD) is a major cause of death in Australia. Electronic medical record (EMR)-based clinical decision support (CDS) tools have the potential to support absolute CVD risk (ACVDR) evaluation and management. The objective of this study was to test the acceptability and feasibility of the Treat to Target CVD (T3CVD), an EMR-based CDS tool, for the evaluation of ACVDR in general practice. METHODS: Five general practitioners (GPs) piloted the T3CVD tool in their clinic. Interviews with the clinicians explored the acceptability and feasibility of the T3CVD tool. RESULTS: The T3CVD tool was acceptable and, in the small pilot, was shown to have the capacity to support GPs in ACVDR assessment and management, and to encourage patient participation and motivation. Technical and structural factors important to ensure feasibility of the tool were identified. DISCUSSION: With further development, the T3CVD tool has the potential to improve ACVDR assessment and management in primary care. PMID- 29036779 TI - Barriers to effective conversations regarding overweight and obesity in regional Victoria. AB - BACKGROUND: General practitioners (GPs) have a crucial role to play in engaging patients in discussions about overweight and obesity. However, such discussions are currently uncommon. The aim of this study was to examine how GPs in rural areas talk about overweight and obesity with their patients, specifically to identify key barriers to effective conversations. METHODS: This study used a qualitative methodology. Semi-structured interviews were conducted with GPs (n = 7) and patients (n = 7) across two rural areas. RESULTS: Key barriers to effective conversations between GPs and patients about overweight and/or obesity include: uncertainty about appropriate language; lack of time; concerns about compromising mutual trust and rapport; concerns about patient readiness; concerns about patients' mental health and how this may be impacted by discussing a potentially upsetting and stigmatising topic; and lack of effective and individualised treatment and/or referral options. DISCUSSION: The findings suggest that responses to overweight and obesity need to be localised and tailored. Structural-level change is required to enable better responses to overweight and obesity, including multidisciplinary team approaches. PMID- 29036780 TI - Morphine use in cancer care: A survey of attitudes and perceptions in general practice patients. AB - BACKGROUND: Morphine is widely prescribed for patients with cancer, although a number of attitudes have been cited as barriers to its use, including fear, addiction and associations with death. The aim of this study was to explore the nature of these beliefs, and assess the extent to which these attitudes exist in a general practice patient population that may require morphine in the future. METHODS: A 30-item survey was distributed through general practices in Victoria, Australia. RESULTS: Of the 379 questionnaires distributed, 290 were collected (76.5%). Participants were predominantly neutral on questions regarding the effect of morphine on the duration of life. Morphine was seen to be prescribed responsibly (73.5%), even while most perceived its potential for addiction (69.7%). Participants with experience of morphine use had more negative perceptions regarding its efficacy. DISCUSSION: Conversations regarding morphine use should include a discussion about the beliefs and experiences of the individual, many of which may reinforce the utility of morphine. PMID- 29036781 TI - Transport on prescription: How can GPs contribute to the promotion of active transport? AB - BACKGROUND: Active transport (ie walking, cycling, using public transport) can play a part in reducing non-communicable diseases (NCDs). Very little is known about how general practitioners (GPs) can contribute to promoting active transport. We explored GPs' ideas around active transport, and potential barriers and facilitators to its promotion in the clinical setting. METHODS: Using a maximal variation sample, we conducted 10 semi-structured interviews with GPs in Victoria, Australia. The socioecological model informed data collection and analysis. RESULTS: The idea of active transport resonated with GPs. Limited awareness around active transport and safety concerns regarding commuter cycling were barriers to clinical promotion. GPs believed patients' health, cultural norms, socioeconomic position and access to supportive environments could facilitate participation. DISCUSSION: Future efforts should prioritise awareness of active transport among GPs. The perspectives of GPs would be valuable to policymakers, particularly in designing programs to mitigate inequalities around active transport access and use. PMID- 29036782 TI - Practice-based research networks. AB - BACKGROUND: Practice-based research networks (PBRNs) are collaborations between clinical practitioners and academics. PBRNs aim to foster research in general practice through opportunities to learn more about how to undertake and participate in research, and assist in translating new knowledge into practice. Critically, PBRNs also offer clinicians the chance to contribute to research by posing questions of importance to quality clinical care. OBJECTIVE: The objectives of this article are to describe why PRBNs are needed, the current situation regarding PBRNs in Australia, and why Australian general practice and patient outcomes could benefit from further investment in PBRNs. DISCUSSION: PBRNs may assist by engaging more general practitioners (GPs) in the research process, thereby increasing the relevance of the research questions posed to the outcomes of the population GPs work within. Unlike similar countries (eg UK and The Netherlands), Australia no longer has any funding to support the activities of primary-care based PBRNs. PMID- 29036783 TI - Isolated huge right ventricular tumor: cardiac metastasis of tongue cancer. PMID- 29036784 TI - Decreased expression of lncRNA VPS9D1-AS1 in gastric cancer and its clinical significance. AB - BACKGROUND: A recent study has demonstrated that the long non-coding RNA VPS9D1 AS1 is highly expressed in colorectal cancer and predicts poor prognosis. However, roles of VPS9D1-AS1 in gastric cancer remained poorly understood. OBJECTIVE: The aim of this study is to decipher the expression of VPS9D1-AS1 in gastric cancer (GC) patients, so as to assess whether or not it could be used as a novel biomarker for prognosis in gastric cancer patients. METHODS: The expression of VPS9D1-AS1 was examined in cancer tissues and paired adjacent non tumorous tissues from 126 gastric cancer patients using qRT-PCR. Correlations between the expression of VPS9D1-AS1 and clinicopathological parameters and patients' survival were analyzed. RESULTS: VPS9D1-AS1 expression was downregulated in gastric cancer tissues than that in adjacent non-tumorous tissues (P< 0.001). VPS9D1-AS1 expression level was markedly correlated with tumor size and TNM stage in gastric cancer. Kaplan-Meier analysis showed low expression of VPS9D1-AS1 were correlated with poor overall and disease free survival. On multivariate analysis, the hazard ratio of VPS9D1-AS expression was 0.30 (95% CI = 0.13-0.66, P= 0.003) for overall survival. CONCLUSIONS: Overall, our data suggest that downregulated VPS9D1-AS1 may be used as a novel prognosis predictor of gastric cancer. PMID- 29036785 TI - Wide-transcriptome analysis and cellularity of bone marrow CD34+/lin- cells of patients with chronic-phase chronic myeloid leukemia at diagnosis vs. 12 months of first-line nilotinib treatment. AB - BACKGROUND: Chronic myeloid leukemia (CML) is a clonal myeloproliferative disorder with heterogeneous biological and clinical features. The biomolecular mechanisms of CML response to tyrosine-kinase inhibitors are not fully defined. OBJECTIVE: We undertook a gene expression profiling (GEP) study of selected bone marrow (BM) CD34+/lin- cells of chronic-phase CML patients at diagnosis and after 12 months of TKI nilotinib to investigate molecular signatures characterizing both conditions. PMID- 29036786 TI - Pancreatic cancer and associated exosomes. AB - Pancreatic cancers with poor prognosis are highly malignant, readily metastatic and of immune tolerance, mainly due to delayed detection. The metastatic progression and immune tolerance of pancreatic cancer is greatly attributed to the intercellular communication. However, exosomes are deemed to be the most important tool of intercellular communicators. Thus, we present a review of pancreatic cancer and exosomes in this article. We intensively summarize the progress of early pancreatic cancer and the relationship of the proliferation, progression and metastasis of pancreatic cancer and pancreatic cancer-derived exosomes, and propose new ideas of the study of pancreatic cancer. PMID- 29036787 TI - Evaluation of serum CCL18 as a potential biomarker for ovarian cancer. AB - BACKGROUND: Early detection and differentiation diagnosis of a pelvic mass (PM) is crucial in improving the prognosis of patients with epithelial ovarian cancer (EOC). C-C motif chemokine ligand 18 (CCL18) was reported as a chemokine-mediated tumor-related inflammation that can be detected in serum and may correlate with cancer patients' prognosis. OBJECTIVE: We performed this study to investigate the relationship between CCL18 levels and clinical characteristics of EOC patients, and to explore their diagnostic and prognostic values. METHODS: CCL18 serum concentrations were detected by ELISA in 187 patients with EOC, 126 patients with benign PMs, and 118 healthy controls. CCL18 serum levels were analyzed in the context of patients' clinicopathological information, and ROC analyses were performed to determine the effect of CCL18 on distinguishing benign and malignant PMs. The ability of CCL18 to serve as an EOC biomarker was compared with CA125. Further survival analyses were carried out to assess the prognostic value of CCL18 in EOC patients. RESULTS: Mean serum CCL18 levels were elevated in benign PM patients and were even higher in EOC patients than in healthy controls; furthermore, high CCL18 expression was associated with worse International Federation of Gynecology and Obstetrics (FIGO) staging and predicted a poorer survival of the patient. When compared with CA125, although the sensitivity and negative predictive values (NPV) of serum CCL18 were lower, its specificity and positive predictive values (PPV) were higher. CONCLUSIONS: Serum CCL18 was elevated in patients with EOC and could serve as a new tumor biomarker, which also predicted a poor survival of the patient. PMID- 29036788 TI - Knockdown of lncRNA CCAT2 inhibits endometrial cancer cells growth and metastasis via sponging miR-216b. AB - OBJECTIVE: Colon cancer-associated transcript 2 (CCAT2), a novel lncRNA has been reported as an oncogene in several cancers. This study was aimed to explore whether CCAT2 also exerted oncogenic roles in endometrial cancer cells. MATERIALS AND METHODS: The expression of CCAT2 in 30 pairs of endometrial cancer and matched non-cancerous tissues were detected by qRT-PCR. Two endometrial cancer cell lines HEC-1-A and RL95-2 were used throughout this study. CCAT2 in cells was silenced by transfection with shRNA targeted CCAT2, then cell growth and metastasis were assessed by performing trypan blue staining, Transwell assay, and flow cytometry. Dual-luciferase reporter assay was used to detect the combination of miR-216b and CCAT2. Besides, the expression of miR-216b and Bcl-2 in cells were overexpressed or suppressed by transfection with their correspondingly mimic/vector or inhibitor/shRNA. qRT-PCR and western blot analysis were performed to detect the expression of Bcl-2 and main factors in PTEN/PI3K/AKT and mTOR signaling pathways. RESULTS: CCAT2 was highly expressed in endometrial cancer tissues when compared to non-cancerous endometrial tissues. Knockdown of CCAT2 inhibited HEC-1-A and RL95-2 cells viability, migration, invasion, but induced apoptosis. CCAT2 was an endogenous sponge by competing for miR-216b, and miR-216b suppression alleviated CCAT2 silence-diminished cell growth and metastasis. miR 216b negatively regulated Bcl-2 and Bcl-2 could further active PTEN/PI3K/AKT and mTOR signaling pathways. CONCLUSIONS: To conclude, these results demonstrated lncRNA CCAT2 was highly expressed in endometrial cancer tissues. Knockdown of CCAT2 inhibited cell growth and metastasis of endometrial cancer cells by sponging miR-216b. PMID- 29036789 TI - Protein kinase C delta-dependent regulation of Ubiquitin-proteasome system function in breast cancer. AB - Besides the crucial role of hyperinsulinemia in the development of breast cancer with Type 2 diabetes mellitus (T2DM), it has been shown that hyperglycemia could contribute to promote cancer progression. A remarkable association within hyperglycemia, PKCdelta and Ubiquitin-proteasome system (UPS) has been reported, suggesting that PKCdelta may mediate high glucose-induced UPS activation in breast cancer cells. Although the independent effects of PKCdelta or UPS on breast cancer and T2DM are increasingly supported by experimental evidence, the complex interactional link between PKCdelta and UPS is still unclear. Hence, we focus on the relationship between PKCdelta and UPS in breast cancer with T2DM. We hypothesize that PKCdelta may have the function to regulate the activity of UPS. Further, we speculate that PKCdelta combine with proteasome alpha2 promoter, that indicate PKCdelta regulate the function of UPS by change the composition of proteasome. Therefore, we surmise that PKCdelta mediated high glucose-induced UPS activation in breast cancer cells, and specific PKCdelta inhibitor rottlerin significantly suppressed elevated glucose induced the activity of UPS. We hope that our paper will stimulate further studies the relationship between PKCdelta and UPS, and a new targeted therapy and early medical intervention for PKCdelta could be a useful option for breast cancer cases complicated with T2DM or hyperglycemia. PMID- 29036790 TI - Predictors for the efficacy of Endostar combined with neoadjuvant chemotherapy for stage IIIA (N2) NSCLC. AB - BACKGROUND: Endostar (rh-endostatin) is a new recombinant human endostatin, which could inhibit cell proliferation, angiogenesis, and tumor growth. OBJECTIVE: To explore anti-angiogenesis short-term efficacy combined with neoadjuvant chemotherapy for stage IIIA (N2) non-small cell lung cancer (NSCLC), and identify the potential predictive factors. METHODS: We pathologically examined 26 patients diagnosed with stage IIIA (N2) NSCLC who received NP chemotherapy alone or combined with Endostar, respectively. RESULTS: Our results indicated that total clinical benefit rate (CBR) 87.5% and 64% (p= 0.76), respectively. The clinical benefit (CB) patients in the treatment group showed significant changes in endothelial progenitor cells (EPC), vascular endothelial growth factor (VEGF), blood flow (BF), permeability surface (PMS), and microvascular density (MVD) before and after treatment. Compared with CB patients in the control group, changes in EPC and MVD (only) before and after treatment were significant. The variation of EPC, PMS, and MVD before and after treatment in the treatment group showed positive correlation with tumor regression rate (TRR) and the variation of MVD, whereas those of EPC and PMS demonstrated positive correlations with variation of MVD before and after treatment. CONCLUSION: Our findings suggested that PMS and EPC may be used as a predictive factor for the short-term efficacy of the combined therapy in NSCLC. PMID- 29036791 TI - Globo H expression is associated with driver mutations and PD-L1 expressions in stage I non-small cell lung cancer. AB - BACKGROUND: Globo H is a tumor-associated carbohydrate antigen exclusively expressed in cancer cells rather than normal tissue. Globo H has been found on many cancers of epithelial origins, and become an attractive target for cancer vaccine. OBJECTIVES: We aimed to study the expression of Globo H in non-small cell lung cancer (NSCLC) patients, and correlated its expression with common driver mutations, clinical outcomes, and status of immune checkpoint, programmed death-ligand 1 (PD-L1). METHODS: The study enrolled 228 patients with surgically resected stage I NSCLC, including 139 patients with adenocarcinoma (ADC) and 89 patients with squamous cell carcinoma (SqCC). Using immunohistochemistry, tumors with moderate to strong membranous staining in ? 1% tumor cells per section were scored as positive Globo H expression. Driver mutations including EGFR, KRAS, BRAF were detected by direct sequencing, while ALK, PI3KCA, FGFR1 and PD-L1 expression was detected by immunohistochemical (IHC) staining. RESULTS: Positive Globo H expression was detected in 88 of the 228 (38.6%) patients. These included 51 of 139 (36.7%) patients with ADC and 37 of 89 (41.6%) patients with SqCC. Positive Globo H expression was significantly associated with EGFR mutation and PD-L1 expression in the ADC group, and PI3KCA overexpression in the SqCC group. The survival analysis showed that Globo H expression was not an independent prognostic factor in stage I NSCLC. CONCLUSIONS: Globo H expression was correlated with specific driver mutations in ADC and SqCC NSCLC tumors, as well as PD-L1 status. Immunotherapy targeting Globo H may have potential application in lung cancer treatment. PMID- 29036792 TI - Are Helicobacter pylori highly cytotoxic genotypes and cardia gastric adenocarcinoma linked? Lessons from Iran. AB - BACKGROUND: Although the most extensive studies revealed the role of H. pylori VacA and CagA toxins in the development of gastric adenocarcinoma, the magnitude of this association and the correlations of vacA mosaicism and cagA status with cardia gastric adenocarcinoma (CGA) still remain controversial. OBJECTIVE: We aimed to examine the linkage of H. pylori highly cytotoxic genotypes to CGA in Iranian populations as a model. METHODS: A total of 601 Iranian patients were enrolled. Biopsies were cultured, genotyped, and anatomically and histologically classified. RESULTS: The vacA c1 genotype, but not cagA status, showed a strong association with the risk of both CGA and non-cardia adenocarcinoma (NCGA), whether the controls were non-tumors, as those with either non-atrophic gastritis or peptic ulcerations, (the OR (95%CI) was 14.11 (4.91-40.52) and 9.59 (4.06 22.65), respectively) or those with NAG (the OR (95%CI) was 10.71 (3.49-32.82) and 8.11 (3.26-20.16), respectively). The vacA c1/cagA+ genotype was significantly associated with an increased risk of NCGA, whether the controls were non-tumors or those with NAG; the adjusted risk was 4.706 (1.41-15.67) and 4.85 (1.42-16.51), respectively. CONCLUSIONS: The H. pylori vacA c1 genotype, but not cagA status, might be the first important bacterial biomarker for predicting the cardia adenocarcinoma risk in male patients aged ? 55 in Iran. PMID- 29036793 TI - Clinical relevance of early sublingual microcirculation monitoring in septic shock patients. AB - INTRODUCTION: Although microcirculation dysfunction plays unique role in septic shock, translation of microcirculation to clinical practices is limited by current semi-quantities analysis and unclear clinical relevance of microcirculation monitoring. Our aim was to critically evaluate the characteristic nature and relevant clinical important of microcirculation. EVIDENCE ACQUISITION: Pubmed (2000 to August 2015) were searched to identify observation, case-control, intervention and randomized clinical studies evaluating the relationship between microcirculation alterations and mortality, morbidity and drug responses. The STROBE and CONSORT Statement for assessment of the quality of included studies. EVIDENCE SYNTHESIS: We examined results from 17 observations, 4 randomized controlled trials and one case report published studies. This data set comprised of 637 patients. Early septic shock is associated with hypoperfusion and heterogeneous microcirculation that is associated with hyperlactemia and metabolic acidosis. The evidence on clinical relevance of microcirculation is less striking, mainly due to the limited number of studies and problems related to the methodological protocol of the studies and currently semi-quantitative analysis technique. In particular the baseline and time course of microcirculation alteration appears to be controversial. CONCLUSION: There is lack of evidences of clinical importance of early microcirculation monitoring and mechanism of microcirculation dysfunction in septic shock patients. This could be due to the methodological protocol of the studies and currently semi-quantitative analysis technique. PMID- 29036794 TI - Assessing the effect of different operation techniques on postoperative duplex ultrasound quality after carotid endarterectomy. AB - BACKGROUND: Duplex ultrasound is the first choice in diagnostics and surveillance of stenoses of the internal carotid arteries before and even after surgery. Therefore, the quality of duplex ultrasound is crucial to investigate these vascular pathologies. OBJECTIVE: Aim of this study was the evaluation whether different surgical techniques affect the postoperative quality of duplex ultrasound. METHODS: In a time period from January to May 2015 duplex ultrasound of the cervical vessels was performed in 75 patients after unilateral endarterectomy of the internal carotid artery at our department between 2006 and 2012. Thereby, the non-operated contralateral side served as a control. Study groups were defined by the surgical techniques of eversion- or thrombendarterectomy with patch plasty using different patch materials and/or a haemostatic sealant. Duplex ultrasound analysis included acoustic impedance, extinction of ultrasound, thickness of skin and individual anatomic aspects of the patients. RESULTS: Carotid endarterectomy itself reduced intravascular grey levels, skin thickness and increased extinction of duplex ultrasound when compared to the non-operated side of the neck. In contrast, neither the kind of chosen operative technique nor the use of different patch materials or the application of a haemostatic sealant showed an effect in this regards. CONCLUSIONS: Whereas carotid endarterectomy per se worsens the quality of postoperative duplex ultrasound, the different analysed surgical techniques as well as used patches and the application of a haemostatic sealant can be assumed to be equal regarding the quality of postoperative ultrasound. PMID- 29036795 TI - Erythrocyte deformability and hemorheological profile in multiple myeloma. AB - The hemorheological profile in multiple myeloma (MM) has been extensively studied. Our investigation regarded the behavior of whole-blood viscosity, plasma viscosity and erythrocyte deformability in MM. We enrolled 24 MM patients; 13 of them had been recently diagnosed and were at the initial stage of therapy, 6 were on consolidation/conservation therapy and 5 had achieved a complete remission. On fasting venous blood we evaluated whole-blood and plasma viscosity at high and low shear rates, haematocrit, the ratios between whole-blood viscosity (at high and low shear rate) and haematocrit*100, the ratio between plasma viscosity at low and high shear rate and the erythrocyte deformability examined by using laser diffractometry and expressed as elongation index. A significant increase in plasma viscosity at low shear rate and a marked decrease in haematocrit were observed in MM patients compared with normal controls. Also the ratio between the high shear rate whole-blood viscosity and haematocrit *100 and the ratio between the low and high shear rate plasma viscosity were significantly increased in MM patients. A significant decrease in erythrocyte deformability, especially at low shear stresses, was found. We discuss some hypotheses that might explain the behavior of red blood cell deformability in MM, considering that its impairment, in addition to the increase of plasma viscosity, can alter the microcirculatory flow in these patients. PMID- 29036796 TI - Intestinal ischemia-reperfusion leads to early systemic micro-rheological and multiorgan microcirculatory alterations in the rat. AB - BACKGROUND: Intestinal ischemia-reperfusion (I/R) is a potentially life threatening situation and its pathomechanism is not fully understood yet. OBJECTIVE: To investigate the early micro-rheological, microcirculatory and morphological consequences of intestinal I/R in a rat model. METHODS: CD rats were anesthetized and subjected to Control (n = 7) or I/R (n = 7) groups. Left femoral artery cannulation and median laparotomy were performed. In the I/R group the superior mesenteric artery was clamped for 30 minutes. Blood samples were taken before (Base) and after the ischemia, at the 30th, 60th and 120th minutes of the reperfusion (R-30, R-60, R-120). Hematological parameters, erythrocyte deformability and aggregation were determined. On the jejunum, the liver and the right kidney laser Doppler flowmetry tests were completed. At the end of experiment histological samples were taken. RESULTS: Hematocrit, leukocyte and platelet counts increased during the reperfusion. Erythrocyte deformability worsened versus Control. All erythrocyte aggregation index values of I/R group increased gradually. Intestinal microcirculatory blood flux units (BFU) did not recover completely after ischemia, at R-30 liver BFU values were lower, and kidney values decreased by R-120. Histology showed signs of I/R injury. CONCLUSIONS: Micro-rheological parameters may show early and significant deterioration during the reperfusion that might contribute further to microcirculatory alterations. PMID- 29036797 TI - Effects of venotonic drugs on the microcirculation: Comparison between Ruscus extract and micronized diosmine1. AB - BACKGROUND: Chronic venous disease of the lower limbs is a common public health problem worldwide with negative impact on quality of life and results with drugs used to treat it are sparse, probably due to lack of good experimental models. OBJECTIVE: In this investigation we have tested the effects of two commonly used venotonic substances, Ruscus extract and micronized diosmine, on the microcirculation in vivo. METHODS: These substances were given orally, by gavage, during two weeks, twice daily and observations were made using the hamster cheek pouch preparation. RESULTS: The drugs elicited a dose-dependent inhibition of (1) macromolecular permeability increase induced by histamine or ischemia followed by reperfusion, being the Ruscus extract more active on both and (2) leukocyte endothelium interaction, again being the Ruscus extract more effective in the inhibition of the number of adherent and rolling leukocytes. About the duration of the effect after the end of the treatment, both drugs had similar effects but Ruscus extract showed greater permanence of its effect on all observed parameters. CONCLUSIONS: Our results suggest that both drugs have antioxidant and anti-inflammatory properties being Ruscus extract more active. It should be added that only Ruscus extract showed a significant venular constriction. PMID- 29036798 TI - No effect on the short-term of a decrease in blood viscosity on insulin resistance. AB - BACKGROUND: Blood viscosity (BV) might influence glucose delivery to peripheral tissues and play an important role in insulin resistance and diabetes mellitus. However, the exact relationship between BV and insulin resistance is not yet clear. OBJECTIVES: Aim of the present study is to evaluate the effects of the acute reduction in BV on insulin resistance, in healthy male subjects. METHODS: Fifteen healthy male blood donors have been studied before and 48 hours after blood donation. Blood and plasma viscosity have been measured at 37 degrees C with a cone-plate viscometer. Insulin resistance has been evaluated by euglycemic/hyperinsulinemic clamp in eight subjects, and by iHOMA2 Index in further seven subjects. RESULTS: Blood viscosity was markedly reduced after blood donation (BV225 (cP) 4.53 +/- 0.59 vs. 4.18 +/- 0.31, p < 0.05). Insulin resistance was unchanged: MFFM clamp: 5.6 +/- 4.5vs. 4.4 +/- 2.2 and iHOMA2 Index 1.2 +/- 0.6 vs. 1.2 +/- 0.5, before vs. after respectively, p = NS. Blood pressure and lipids were unchanged after blood donation. CONCLUSIONS: The present results demonstrate that acute reduction of BV in healthy male subjects does not change the insulin resistance, measured using both euglycemic/hyperinsulinemic clamp and iHOMA2 Index. Further intervention studies are needed to assess the effect that the reduction in BV can have in subjects with insulin resistance. PMID- 29036799 TI - Hemorheological parameters in Monoclonal Gammopathy of Undetermined Significance (MGUS). AB - There is scarcity of information about the hemorheological pattern in subjects with Monoclonal Gammopathy of Undetermined Significance (MGUS). This preliminary research is focused on the behaviour of whole-blood and plasma viscosity, haematocrit and erythrocyte deformability in the above clinical condition. We enrolled 21 MGUS subjects (10 women and 11 men; mean age 66.4 +/- 11.6 years). In fasting venous blood we examined whole-blood and plasma viscosity at high and low shear rates, haematocrit, the ratios between whole-blood viscosity (at high and low shear rate) and haematocrit * 100, the ratio between plasma viscosity at low and high shear rate, and the erythrocyte deformability expressed as elongation index. By comparing normal controls to MGUS subjects a significant increase in whole-blood viscosity at high shear rate and in plasma viscosity at low shear rate were observed. In MGUS subjects the ratios between the high and low shear rate blood viscosity and haematocrit * 100, as well as the ratio between the low and high shear rate plasma viscosity were significantly higher. In MGUS subjects a marked decrease in erythrocyte deformability was also observed. The alteration of the hemorheological profile found in these subjects might be involved in the pathogenesis of thromboembolic events, which occur with a high frequency in MGUS. PMID- 29036800 TI - Quantitative parameters of contrast-enhanced ultrasonography for assessment of renal pathology: A preliminary study in chronic kidney disease. AB - OBJECTIVE: To assess the severity of renal pathology in patients with chronic kidney disease (CKD) using contrast-enhanced ultrasonography (US). METHODS: 275 patients with CKD who were proven by renal biopsy and 30 healthy adults were examined using conventional US and contrast-enhanced US. Ultrasonic parameters included renal length, cortical thickness, rise time (RT), peak intensity (PI), area under the time-intensity curve (AUC), wash-in slope (WIS) and time to peak (TTP). Based on pathological scores, CKD patients were classified into mild, and moderate to severe CKD groups. The logistic regression analysis and receiver operating characteristic (ROC) curves were used. RESULTS: PI and AUC differed significantly among the controls, mild and moderate to severe CKD groups (P < 0.05). There was significant difference in PI among the different pathology types (P < 0.05). The multivariate logistic regression analysis showed that PI was associated independently with the severity of renal pathology in patients with CKD (P < 0.05). PI less than 13.87 dB had a certain diagnostic ability, and the sensitivity and specificity were 72.5% and 64.0%, respectively. CONCLUSIONS: Contrast-enhanced US may be useful for noninvasive assessment of the severity of renal pathology. PI may be potentially valuable for guiding therapy and follow-up in patients with CKD. PMID- 29036801 TI - Misinterpretation of the sublingual microcirculation during therapy with levosimendan. AB - There is increasing evidence in the literature that preoperative treatment with levosimendan optimizes cardiopulmonary haemodynamics in patients scheduled for the implantation of a Left Ventricular Assist Device (LVAD). The present case report describes changes in sublingual microcirculation using incident dark field video microscopy in a patient, who received a continuous infusion of 0.5 mg/h levosimendan 12 h before LVAD implantation. Despite no evident macrohaemodynamic or metabolic changes, there was a dramatic reduction in total vessel density and perfused vessel density suggesting a deterioration of microcirculation according to the consensus conference criteria in vessels smaller than 20 MUm in diameter. However, the microcirculation of all visible vessels (regardless of diameter) was maintained. This potential misinterpretation is explained by a levosimedan induced vasodilation and the subsequent reduction of the percentage of vessels with a diameter smaller than 20 MUm. Physicians should carefully consider this pitfall of applying the consensus conference criteria in vasodilator-treated patients. PMID- 29036802 TI - Pharmacosimulation of interruptions and its solution in intravenous administration of cangrelor. AB - BACKGROUND: Cangrelor is an intravenous adenosine diphosphate (ADP) P2Y12 receptor antagonist, which has to be administered as a bolus followed by immediate infusion. Nevertheless, in clinical routine deviations from the correct practice, such as delayed infusion onset or interruptions during infusion, may occur. OBJECTIVE: The objective of the present study was to investigate the impact of administration delays on cangrelor concentration in a pharmacological simulation setting and to give possible solutions for the clinical practice. METHODS: We simulated the effects of different delays in administration of cangrelor in a model based on known pharmacokinetic parameters. Additionally, we calculated the optimal dosage of a second bolus. RESULTS: We demonstrate that already a short delay between the bolus and begin of infusion as well as short infusion interruptions considerably affect the serum concentration of cangrelor. Additionally, we estimate the dosage of a possible second bolus which highly depends on the duration of the delay. CONCLUSIONS: Our results emphasize that continuous administration of cangrelor is crucial to avoid the critical time frame of increased thrombosis risk. We suggest a strategy for dealing with interruptions by demonstrating that a second bolus allows to reach rapidly an effective but not excessive cangrelor serum concentration. PMID- 29036803 TI - Extracellular ATP activates eNOS and increases intracellular NO generation in Red Blood Cells. AB - BACKGROUND: It has been well documented that ATP activates NOS enzymes and causes increased NO production in several cell types. Although RBC known to possesses eNOS enzyme activity, it has not been investigated whether RBC eNOS could be induced by extracellular ATP. OBJECTIVE: The aim of the present study is to evaluate extracellular ATP mediated eNOS activation and NO production in RBC. METHODS: RBC packed were isolated from healthy volunteers and re-suspended in Hepes solution at a hematocrit of 0.01 l/l. Intracellular NO and Ca+2 levels and eNOS activation measured by flow cytometry in response to P2X receptor agonist, Bz-ATP, in the absence and presence of NOS, P2 receptors and PI3K inhibitors. RESULTS: P2X receptor agonist Bz-ATP found to increase intracellular NO, Ca+2 and serine 1177 phosphorylated eNOS levels and these responses have shown to be suppressed by NOS enzyme, P2 receptors and PI3K inhibitors. CONCLUSIONS: The results of the study clearly demonstrated extracellular ATP induced NO generation in RBC through intracellular Ca+2 and PI3K/Akt pathways. The mechanism we described here might be important at basal conditions and also in conditions with increased ATP release. PMID- 29036804 TI - Rheopheresis as a causal therapy option for systemic scleroderma (SSc). AB - A complex pathomechanism accounts systemic sclerosis as a form of collagenosis. A triad of vasculopathy, autoinflammation, and dysbalance of the fibroblast function can be seen as cause, as well as symptomatic appearance. Comparative with other collagenoses, e.g. Lupus erythematosus, vasculopathy, instead of autoinflammation, appears to be clinically important in systemic scleroderma. The fact that autoinflammation does not represent the major role in the maintenance of the disease is also evident by the lack of therapeutic effects of classical systemic immunosuppressants. Therapeutic approaches with regard to vasculopathy show better effects. In consideration of therapeutic options, such principles are therefore most important. Apheretic methods filter out plasma proteins in the sense of plasmapheresis. Fibrinogen as a plasma viscosity factor is predominantly targeted and filtered out. In addition other accompanying plasma proteins are also reduced. This occurs on the one hand by dilution effects and on the other by unspecific binding. By this mechanism, acute phase proteins such as the C reactive protein and various cytokines, especially interleukin-6 are reduced by this method. Looking more closely at these random adjunctive plasma proteins, a possible central role of interleukin-6 in the development and maintenance cascade of systemic scleroderma becomes clear. PMID- 29036805 TI - Determining the IgM and IgG antibodies titer against HSV1, HSV2 and CMV in the serum of schizophrenia patients. AB - Schizophrenia is a destructive clinical syndrome with diverse mental pathologies. Different mechanisms and factors have a role in this disease. A possible mechanism is that teratogenic viruses cause brain changes and results in the disease appearance. The schizophrenia patients were diagnosed by psychologists and with the consent of patients, five CC of venous blood was drawn. Than Serum samples were isolated and immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies against herpes simplex virus-1 (HSV-1), herpes simplex virus-2 (HSV-2) and cytomegalovirus (CMV) were quantified by ELISA sandwich kit. The Results showed that anti-CMV and anti-HSV1 and anti-HSV2 IgG antibodies in schizophrenia patients were increased significantly (p< 0.05). The increasing of the anti-HSV2 IgM was also observed but increasing amount of the anti-HSV1 IgM was not statistically significant (p< 0.05). Therefore, as a result of this study CMV and HSV1 and HSV2 infection can probably intensify the symptoms in schizophrenia patients. PMID- 29036806 TI - Pritumumab, the first therapeutic antibody for glioma patients. AB - Immunotherapy is now at the forefront of cancer therapeutic development. Gliomas are a particularly aggressive form of brain cancer for which immunotherapy may hold promise. Pritumumab (also known in the literature as CLNH11, CLN-IgG, and ACA-11) was the first monoclonal antibody tested in cancer patients. Pritumumab is a natural human monoclonal antibody developed from a B lymphocyte isolated from a regional draining lymph node of a patient with cervical carcinoma. The antibody binds ecto-domain vimentin on the surface of cancer cells. Pritumumab was originally tested in clinical trials with brain cancer patients in Japan where it demonstrated therapeutic benefit. It was reported to be a safe and effective therapy for brain cancer patients at doses 5-10 fold less than currently approved antibodies. Phase I dose escalation clinical trials are now being planned with pritumumab for the near future. Here we review data on the development and characterization of pritumumab, and review clinical trails data assessing immunotherapeutic effects of pritumumab for glioma patients. PMID- 29036807 TI - Obtaining and characterization of monoclonal antibodies against recombinant extracellular domain of human epidermal growth factor receptor 2. AB - Human epidermal growth factor receptor 2 (HER2) is an important biomarker for detection and treatment of different types of cancers such as breast, ovarian, stomach cancer. In this study, we developed a monoclonal antibody against the extracellular domain (ECD) of HER2 biomarker of breast cancer. For this purpose, the ECD-HER2 gene was amplified and cloned into an expression vector. Gene was generated in Escherichia coli BL21 (DE3) strain for expression of recombinant protein. The expressed protein was separated by SDS-PAGE and detected by anti-his monoclonal antibody in immunoblotting. Hybridoma cells were obtained by fusing myeloma cells with mouse spleen cells injected with recombinant ECD-HER2 and screened by ELISA for the production of monoclonal antibody. The results indicate that out of three candidate hybridoma cells one clone (1E7) was producing the highest titer and antibody specificity was envisioned in ELISA results. In vivo scaling up culture of hybridoma cells in BALB/C mice lead to significant increase in the monoclonal antibody concentration up to 16 mg/ml. Immunochemical methods demonstrated the specificity of developed antibody against ECD-HER2 protein. PMID- 29036808 TI - Ecotropic Viral Integration Site 5 (EVI5) expression analysis in multiple sclerosis patients. AB - BACKGROUND: Multiple sclerosis (MS) is a complex immune-related disorder of the central nervous system (CNS) in which dysregulation of different classes of T cells are involved. Variants in Ecotropic Viral Integration Site 5 (EVI5) gene has been shown to be significantly associated with MS in different populations. OBJECTIVES: However, there is no data regarding relative expression of this gene in peripheral blood of MS patients compared with healthy controls. METHODS: In the present study we assessed expression of EVI5 in 50 Iranian MS patients compared with healthy subjects by means of quantitative real time RT-PCR. RESULTS: Statistical analyses showed no significant difference in EVI5 relative expression neither between total MS patients and healthy controls nor between age and sex-based subgroups of patients and controls except for a trend toward significance in patients aged between 30 and 40 years compared with healthy subjects in both sexes (P= 0.068 and 0.075 for males and females respectively). No significant correlation was found between the expression level of this gene and disease duration, age at onset or Expanded Disability Status Scale (EDSS). CONCLUSION: Future studies are needed to explore the role of EVI5 in the pathogenesis of MS. PMID- 29036810 TI - Neutralizing activity and safety of human monoclonal antibodies against hepatitis C virus. AB - AIM: Assessment of the neutralizing activity of human monoclonal antibodies against HCV and also study their safety in experimental small animals (Swiss mice). MATERIALS AND METHODS: Assessment of neutralizing activity of human monoclonal antibodies against HCV envelope regions (E1, E2) by two methods: by HCV cc infectious system 1) and by using positive HCV positive serum as source of HCV particles genotype 4a (neutralizing assay 2). Dot ELISA was used to study the activity of the generated antibodies. Safety and toxicity of the generated human antibodies were tested by assessing the changes in the biochemistry of liver function and kidney function tests, Complete blood counts (CBC) and studying the pathological changes with different concentrations of purified human antibodies were carried out.. RESULTS: Human Abs # 5 & 11 showed neutralizing activity by (neutralizing assay 2) but were not neutralizing by HCV cc assay. Human Abs # 12 & 15 showed neutralizing activity by the two methods i.e our generated human antibodies Abs# 5 &11 & 12 & 15 were neutralizing for HCV genotype 4a and Abs # 12 & 15 were neutralizing for HCV genotypes 4a and 2a. Liver and kidney functions and CBC results indicated that doses of 10 MUg, 100 MUg were safe. The histopathological results indicated that the dose of 10 MUg of purified human monoclonal antibodies per mouse body weight was safe. CONCLUSION: The generated human monoclonal antibodies can be used to develop potent immunotherapy agents that can be administrated for the post-transplantation patients to prevent the recurrence of HCV infection. Also, the monoclonal antibodies can be used to develop a candidate vaccine against HCV. PMID- 29036809 TI - Role of FSHR rs6165 and ESR2 rs4986938 polymorphisms in ovarian stimulation of Iranian women who underwent assisted reproduction treatment. AB - BACKGROUND: Gonadotropin therapy was used to stimulate the ovary in infertile women who underwent assisted reproduction treatment (ART). Numerous studies indicated that infertile women showed different responses to gonadotropin therapy. Follicle stimulating hormone receptor (FSHR) and Oestrogen receptor (ER) polymorphisms have been reported to involve induction of folliculogenesis and ovarian response to treatment. METHODS: In the present study, two polymorphisms, namely FSHR rs6165 and ESR2 rs4986938, were investigated in 198 Iranian infertile women aged less than 39 years who underwent ART. After DNA extraction, these polymorphisms were genotyped by TaqMan genotyping assay. According to the number of eggs released during ovulation, the patients were categorized into poor responders (PR) and good responders (GR). The results indicated that the good responders showed lower levels of FSH and LH than poor responders. RESULTS: No association was observed between ESR2 rs4986938 and poor response in Iranian women patients. Instead, FSHR rs6165 showed a strong association with ovarian response to ART (p< 0.05). CONCLUSION: The obtained results indicated that FSHR rs6165, not ESR2 rs4986938, could be suggested as a candidate marker to predict poor ovarian response. PMID- 29036812 TI - Altered Gut Microbiota in a Mouse Model of Alzheimer's Disease. AB - The topic of gut microbiota is currently attracting considerable interest as a potential factor in Alzheimer's disease (AD). However, the extent and time course of alterations in the gut microbiota, and their effects on AD pathology remain uncertain. Herein, we compared the fecal microbiomes and fecal short chain fatty acid composition (SCFAs) between wild-type and AD model mice at different ages under strictly controlled specific pathogen free conditions, and also conducted microscopic investigations of intestinal structures. Our results showed that the microbiota composition and diversity were perturbed and the level of SCFAs was reduced in AD mice, predicting alterations in more than 30 metabolic pathways, which may be associated with amyloid deposition and ultrastructural abnormalities in AD mouse intestine. These findings indicate that AD pathology might not only affect brain function directly, but also exacerbate cognitive deficits through reducing the level of SCFAs via alterations of gut microbiota induced by intestinal amyloid deposition. Our data may support a role of gut microbiota, and suggest a novel route for therapeutic intervention in AD. PMID- 29036811 TI - Sildenafil Improves Vascular and Metabolic Function in Patients with Alzheimer's Disease. AB - BACKGROUND: Alzheimer's disease (AD) is the leading cause of degenerative dementia in the aging population. Patients with AD have alterations in cerebral hemodynamic function including reduced cerebral blood flow (CBF) and cerebral metabolic rate. Therefore, improved cerebrovascular function may be an attractive goal for pharmaceutical intervention in AD. OBJECTIVE: We wished to observe the acute effects of sildenafil on cerebrovascular function and brain metabolism in patients with AD. METHODS: We used several novel non-invasive MRI techniques to investigate the alterations of CBF, cerebral metabolic rate of oxygen (CMRO2), and cerebrovascular reactivity (CVR) after a single dose of sildenafil administration in order to assess its physiological effects in patients with AD. CBF, CMRO2, and CVR measurements using MRI were performed before and one hour after the oral administration of 50 mg sildenafil. Baseline Montreal Cognitive Assessment score was also obtained. RESULTS: Complete CBF and CMRO2 data were obtained in twelve patients. Complete CVR data were obtained in eight patients. Global CBF and CMRO2 significantly increased (p = 0.03, p = 0.05, respectively) following sildenafil administration. Voxel-wise analyses of CBF maps showed that increased CBF was most pronounced in the bilateral medial temporal lobes. CVR significantly decreased after administration of sildenafil. CONCLUSION: Our data suggest that a single dose of sildenafil improves cerebral hemodynamic function and increases cerebral oxygen metabolism in patients with AD. PMID- 29036813 TI - Association Between Later Life Lifestyle Factors and Alzheimer's Disease Biomarkers in Non-Demented Individuals: A Longitudinal Descriptive Cohort Study. AB - BACKGROUND: Lifestyle factors have been associated with the risk of dementia, but the association with Alzheimer's disease (AD) remains unclear. OBJECTIVE: To examine the association between later life lifestyle factors and AD biomarkers (i.e., amyloid-beta 1-42 (Abeta42) and tau in cerebrospinal fluid (CSF), and hippocampal volume) in individuals with subjective cognitive decline (SCD) and mild cognitive impairment (MCI). In addition, to examine the effect of later life lifestyle factors on developing AD-type dementia in individuals with MCI. METHODS: We selected individuals with SCD (n = 111) and MCI (n = 353) from the DESCRIPA and Kuopio Longitudinal MCI studies. CSF Abeta42 and tau concentrations were assessed with ELISA assay and hippocampal volume with multi-atlas segmentation. Lifestyle was assessed by clinical interview at baseline for: social activity, physical activity, cognitive activity, smoking, alcohol consumption, and sleep. We performed logistic and Cox regression analyses adjusted for study site, age, gender, education, and diagnosis. Prediction for AD type dementia was performed in individuals with MCI only. RESULTS: Later life lifestyle factors were not associated with AD biomarkers or with conversion to AD type dementia. AD biomarkers were strongly associated with conversion to AD-type dementia, but these relations were not modulated by lifestyle factors. Apolipoprotein E (APOE) genotype did not influence the results. CONCLUSIONS: Later life lifestyle factors had no impact on key AD biomarkers in individuals with SCD and MCI or on conversion to AD-type dementia in MCI. PMID- 29036814 TI - Curcumin Ameliorates Neuroinflammation, Neurodegeneration, and Memory Deficits in p25 Transgenic Mouse Model that Bears Hallmarks of Alzheimer's Disease. AB - Several studies have indicated that neuroinflammation is indeed associated with neurodegenerative disease pathology. However, failures of recent clinical trials of anti-inflammatory agents in neurodegenerative disorders have emphasized the need to better understand the complexity of the neuroinflammatory process in order to unravel its link with neurodegeneration. Deregulation of Cyclin dependent kinase 5 (Cdk5) activity by production of its hyperactivator p25 is involved in the formation of tau and amyloid pathology reminiscent of Alzheimer's disease (AD). Recent studies show an association between p25/Cdk5 hyperactivation and robust neuroinflammation. In addition, we recently reported the novel link between the p25/Cdk5 hyperactivation-induced inflammatory responses and neurodegenerative changes using a transgenic mouse that overexpresses p25 (p25Tg). In this study, we aimed to understand the effects of early intervention with a potent natural anti-inflammatory agent, curcumin, on p25-mediated neuroinflammation and the progression of neurodegeneration in p25Tg mice. The results from this study showed that curcumin effectively counteracted the p25 mediated glial activation and pro-inflammatory chemokines/cytokines production in p25Tg mice. Moreover, this curcumin-mediated suppression of neuroinflammation reduced the progression of p25-induced tau/amyloid pathology and in turn ameliorated the p25-induced cognitive impairments. It is widely acknowledged that to treat AD, one must target the early-stage of pathological changes to protect neurons from irreversible damage. In line with this, our results demonstrated that early intervention of inflammation could reduce the progression of AD-like pathological outcomes. Moreover, our data provide a rationale for the potential use of curcuminoids in the treatment of inflammation associated neurodegenerative diseases. PMID- 29036815 TI - Diaschisis-Like Association of Hippocampal Atrophy and Posterior Cingulate Cortex Hypometabolism in Cognitively Normal Elderly Depends on Impaired Integrity of Parahippocampal Cingulum Fibers. AB - Hippocampal atrophy and hypometabolism of the posterior cingulate cortex (PCC), early markers of Alzheimer's disease (AD), have been shown to be associated in late mild cognitive impairment and early AD via atrophy of connecting cingulum fibers. Recently, a direct association of hippocampal atrophy and PCC hypometabolism has been shown in cognitively normal elderly. We aimed to investigate if this association might be modulated by partly non-hippocampogenic alterations of parahippocampal cingulum (PHC) integrity. 45 cognitively healthy elderly aged 59 to 89 years were included from the Alzheimer's Disease Neuroimaging Initiative. Hippocampal volumes and PCC glucose metabolism were measured using MRI and FDG-PET. PHC fibers connecting the hippocampus and the PCC were reconstructed using diffusion weighted MRI and measures of diffusivity were calculated. Using robust linear regression, interaction effects of PHC diffusivity and hippocampal volume on PCC metabolism were calculated. For both hemispheres, significant interaction effects were found for PHC mean diffusivity. Interaction effects were such that the association of hippocampal volume and PCC metabolism was higher in subjects with increased mean diffusivity in PHC fibers. In cognitively normal elderly, compromised integrity of the PHC may increase the risk of PCC hypometabolism due to hippocampal atrophy. Spared PHC fiber integrity may protect against PCC hypometabolism due to hippocampal atrophy. PMID- 29036816 TI - Sex Difference in Aerobic Exercise Efficacy to Improve Cognition in Older Adults with Vascular Cognitive Impairment: Secondary Analysis of a Randomized Controlled Trial. AB - Aerobic training (AT) is a promising, non-pharmacological intervention to mitigate the deleterious effects of aging and disease on brain health. However, a large amount of variation exists in its efficacy. This is a secondary analysis of a randomized controlled trial of AT in 71 older adults with subcortical ischemic vascular cognitive impairment (NCT01027858). Specifically, we investigated: 1) whether sex moderates the relationship between AT and executive functions, and 2) the role of brain derived neurotrophic factor (BDNF) and gains in functional fitness capacity. Older adults were randomly assigned to either 6-month, thrice weekly AT or to usual care plus education (CON). At baseline, trial completion, and 6-month follow-up, executive functions were assessed with the Trail Making Test (A & B), verbal digits forward and backward test, and the Stroop Test. Functional fitness capacity was assessed with the 6-Minute Walk Test. Compared with CON, AT significantly improved Trail Making Test performance in females but not males, an effect that was retained at follow-up. AT significantly increased BDNF levels in females but decreased levels in males. On the other hand, AT led to significant gains in functional fitness capacity in males only. This study provides evidence that sex differences exist in AT efficacy on brain health as well as in the biological mechanisms subserving AT. PMID- 29036817 TI - Initial Heart Rate Reactivity to Socioemotional Pictures in Early-Onset Alzheimer's Disease. AB - Patients with Alzheimer's disease (AD) often have generalized anxiety, particularly in early-onset AD (EOAD) or the first stages of their disease. This increased anxiety could be associated with decreased sensorimotor gating with increased attention to significant stimuli from AD pathology in the entorhinal cortex. We investigated whether widening initial attention to socioemotional stimuli was association with anxiety among 16 patients with first stage EOAD compared to 19 normal controls (NCs). The participants underwent assessment of their initial heart rate deceleration ("orienting response"; OR), a measure of attentional refocusing, to pictures (International Affective Picture Stimuli) varying in pleasant-unpleasant valence and social-nonsocial content. The results showed group differences; the EOAD patients had significantly larger ORs than the NCs across conditions, with larger ORs in each valence and social condition. In addition, the EOAD patients, but not the NCs, showed ORs to normally less threatening stimuli, particularly pleasant, but also less significantly, social stimuli. On the Neuropsychiatric Inventory, the ORs among the EOAD patients significantly correlated with anxiety scores. Together, these findings suggest that anxiety in mild EOAD may be associated with widening attentional refocusing to socioemotional stimuli, possibly reflecting decreased sensorimotor gating in the entorhinal cortex. This finding could be a potential biomarker for the first stages of AD. PMID- 29036818 TI - A 9-microRNA Signature in Serum Serves as a Noninvasive Biomarker in Early Diagnosis of Alzheimer's Disease. AB - Alzheimer's disease (AD) is the most common type of age-related neurodegenerative disorder; nevertheless, nowadays there are no reliable biomarkers or non-invasive techniques available for its early detection. Recent studies have indicated that the circulating level profiles of microRNAs (miRNAs) have the potential to be used as valuable biomarkers for diagnosis, staging, and progress monitoring of various diseases. Here we report a novel 9-miRNA signature (hsa-miR-26a-5p, hsa miR-181c-3p, hsa-miR-126-5p, hsa-miR-22-3p, hsa-miR-148b-5p, hsa-miR-106b-3p, hsa miR-6119-5p, hsa-miR-1246, and hsa-miR-660-5p) that can be utilized as biomarker for detecting AD. We respectively profiled the serum miRNAs from 19 AD patients and 9 healthy control (HC) participants using the Next-Generation Sequencing (NGS). The NGS results were validated by quantitative real-time polymerase chain reaction (qRT-PCR) on a larger cohort of 121 AD and 86 HC cases. All the patients were divided into three groups (mild, moderate, and severe AD) based on the Mini Mental State Examination (MMSE) and Clinical Dementia Rating (CDR). Our research indicates that abnormal expression of distinct serum miRNAs occurs at different stages of AD. The difference of the area under the receiver operator characteristics curve (AUC) between the AD and the HC is between 70% and 85%. Among the 9 miRNAs, hsa-miR-22-3p has the best sensitivity (81.8%) and specificity (70.9%). The miRNA-panel is more valuable for AD diagnosis. The data suggest that the differentially expressed serum miRNAs could be used as biomarkers to improve the diagnosis of AD, particularly at the early stage, and to classify its clinical stages. PMID- 29036819 TI - Age and Graphomotor Decision Making Assessed with the Digital Clock Drawing Test: The Framingham Heart Study. AB - BACKGROUND: Digital Clock Drawing Test (dCDT) technology enables the examination of detailed neurocognitive behavior as behavior unfolds in real time; a capability that cannot be obtained using a traditional pen and paper testing format. OBJECTIVE: Parameters obtained from the dCDT were used to investigate neurocognitive constructs related to higher-order neurocognitive decision making and information processing speed. The current research sought to determine the effect of age as related to combined motor and non-motor components of drawing, and higher-order decision making latencies. METHODS: A large group of stroke- and dementia- free Framingham Heart Study participants were administered the dCDT to command and copy with hands set for "10 after 11". Six age groups (age range 28 98) were constructed. RESULTS: Differences between age groups were found for total time to completion, total pen stroke count, and higher-order decision making latencies in both command and copy test conditions. CONCLUSION: Longer age related decision making latencies may reflect a greater need for working memory and increased self-monitoring in older subjects. These latency measures have potential to serve as neurocognitive biomarkers of Alzheimer's disease and other insidious neurodegenerative disorders. PMID- 29036820 TI - Job Loss After Diagnosis of Early-Onset Dementia: A Matched Cohort Study. AB - Early-onset dementia (EOD) affects the employment of patients and family members. To demonstrate how likely employees are to leave their jobs after an EOD diagnosis for themselves or a family member, we conducted a matched cohort study of 143 employees and 77 family members diagnosed with EOD using a claims database. We matched these participants to 5 controls each, and followed them for approximately 600 days. In the employee cohort, patients with EOD were more likely to leave their jobs than were controls (hazard ratio: 2.26). This suggests that healthcare providers should offer employment support to patients just after diagnosis. PMID- 29036821 TI - Estimated Glomerular Filtration Rate is not Associated with Alzheimer's Disease in a Northern Ireland Cohort. AB - BACKGROUND: Alzheimer's disease (AD) prevalence is increasing globally and typically progresses for several years prior to clinical presentation of dementia. Renal dysfunction and vascular disease have been reported in association with dementia in several cross-sectional and longitudinal studies, and may contribute to AD risk. Experimental and observational studies suggest amyloid-beta (Abeta) clearance may be impaired in chronic kidney disease (CKD) indicating a mechanism for increased AD risk. OBJECTIVE: The objective of this study was to compare estimated glomerular filtration rate (eGFR) between individuals with AD and cognitively intact controls, controlling for potential confounding factors. METHODS: A cross-sectional, case-control study was carried out in 317 cognitively normal participants and 253 cases with a clinical diagnosis of AD in a UK tertiary care dementia clinic. Associations were considered using logistic regression adjusting for confounding variables (age, APOEE4 genotype, systolic blood pressure, education (left school at 14), and smoking status). RESULTS: AD cases were older than cognitively intact controls, had lower MMSE scores, were more likely to have at least one APOEE4 allele, had higher rates of smoking, were more likely to be taking aspirin and/or clopidogrel, and had lower blood pressure. We found no significant association between eGFR and AD both before and following adjustment for appropriate confounders. CONCLUSION: This study failed to find an association between eGFR and AD in a cross-sectional sample study of elderly white individuals. PMID- 29036822 TI - Cortical Cerebral Microinfarcts on 3 Tesla MRI in Patients with Vascular Cognitive Impairment. AB - BACKGROUND: Cerebral microinfarcts (CMIs) are small ischemic lesions that are a common neuropathological finding in patients with stroke or dementia. CMIs in the cortex can now be detected in vivo on 3 Tesla MRI. OBJECTIVE: To determine the occurrence of CMIs and associated clinical features in patients with possible vascular cognitive impairment (VCI). METHOD: 182 memory-clinic patients (mean age 71.4+/-10.6, 55% male) with vascular injury on brain MRI (i.e., possible VCI) underwent a standardized work-up including 3 Tesla MRI and cognitive assessment. A control group consisted of 70 cognitively normal subjects (mean age 70.6+/-4.7, 60% male). Cortical CMIs and other neuroimaging markers of vascular brain injury were rated according to established criteria. RESULT: Occurrence of CMIs was higher (20%) in patients compared to controls (10%). Among patients, the presence of CMIs was associated with male sex, history of stroke, infarcts, and white matter hyperintensities. CMI presence was also associated with a diagnosis of vascular dementia and reduced performance in multiple cognitive domains. CONCLUSION: CMIs on 3 Tesla MRI are common in patients with possible VCI and co occur with imaging markers of small and large vessel disease, likely reflecting a heterogeneous etiology. CMIs are associated with worse cognitive performance, independent of other markers of vascular brain injury. PMID- 29036823 TI - Prevalence and Correlates of Behavioral Disorders in Old Age Subjects with Cognitive Impairment: Results from the ReGAl Project. AB - BACKGROUND: Presence of behavioral and psychological symptoms of dementia (BPSD) is very common in subjects with cognitive impairment, representing an important determinant of disease progression, institutionalization, and worse prognosis. Knowledge of the prevalence and correlates of BPSD in community-living old subjects with cognitive impairment is limited so far, but it is essential for establishing specifically tailored care and cure in such a vulnerable population. OBJECTIVE: With this study, we aimed at investigating, in a large sample of old age subjects with cognitive impairment, BPSD prevalence and correlates including the main demographic, clinical, and socio-environmental characteristics. METHODS: Data were gathered from the ReGAl project (Rete Geriatrica Alzheimer; Geriatric Network on Alzheimer's disease), a large longitudinal Italian multicentric clinical-based study, promoted by the Italian Society of Gerontology and Geriatrics (SIGG). RESULTS: We evaluated data from 4,157 old-age subjects affected by mild cognitive impairment (MCI) (541; 13%) or dementia (3616; 87%). 85.2% of all the population presented with at least one BPSD. Using a factor analysis, we identified four factors of BPSD: psychotic, affective, maniac, and impulse control behaviors. Logistic regression analyses revealed that among the main demographic, clinical, and socio-environmental aspects considered, only comorbidity was associated with all factors, independently of multiple covariates. CONCLUSION: Identification of BPSD is crucial in everyday clinical practice and necessary to develop specific interventions and to define appropriate outcomes in their management. BPSD occur in a complex psychopathological context, influenced by several demographic and environmental factors that must be taken into account for a correct diagnosis and treatment. PMID- 29036825 TI - The Emergence of a New Conceptual Framework for Alzheimer's Disease. AB - The New Criteria for the diagnosis of Alzheimer's disease (AD), published by a group of experts in 2007, have resulted in a revolution in the comprehension of the disease. Before 2007, the diagnosis of AD dementia was done through a process of exclusion: it was considered in the case of patients with a dementia syndrome without identified etiologies. This traditional algorithm had three major limitations that penalize the disease: 1) a low accuracy of the performance which may share responsibility for negative results in clinical trials; 2) a late identification of the patients only when they reach the threshold of dementia which may delay the activation of optimal care; and last but not least, 3) an absence of clear recognition of AD as a disease because of the lack of specific arguments for its identification. Since 2007, the disease has gained a clear definition based on positive evidence: a specific clinical phenotype (the amnestic syndrome of the hippocampal type) and the presence of biomarkers, considered as a biological signature of the disease. Thanks to these positive arguments, AD is a clinically and biologically well-delineated disease, no longer defined as "probable". It is now possible to certify that a given patient has or does not have the disease. Like diabetes, cancer, hyperthyroidism or any other disorder, AD has now a clear definition with well-defined borders. The disease has entered the world of medicine with identified diseases with a biological fingerprint. This is the story of this adventure that we will present now. PMID- 29036824 TI - Alzheimer's Disease Biomarkers and Future Decline in Cognitive Normal Older Adults. AB - BACKGROUND: Identifying older adults at risk of cognitive decline represents a challenge as Alzheimer's disease (AD) modifying therapies move toward preclinical stages. OBJECTIVE: To investigate the relationship between AD biomarkers and subsequent change in cognition in a cohort of cognitively intact older adults. METHODS: 84 cognitively normal subjects (mean age 72.0 years, 59% women) were recruited through the Massachusetts Alzheimer's Disease Research Center and the Harvard Aging Brain Study and followed over 3 years. Measurements of amyloid-beta 1-42 (Abeta42), total Tau (t-Tau), and Tau phosphorylated at threonine 181 (p Tau181) in the cerebrospinal fluid (CSF) at study entry were available in all cases. Baseline brain MRI, FDG-PET, and PiB-PET data were available in the majority of participants. Relationship between baseline AD biomarkers and longitudinal change in cognition was assessed using Cox proportional hazard regression and linear mixed models. RESULTS: 14% participants increased their global Clinical Dementia Rating (CDR) score from 0 to 0.5 during follow-up. A CDR score increase was associated with higher baseline CSF t-Tau and p-Tau181, higher global cortical PiB retention, and lower hippocampal volume. The combination of high CSF t-Tau and low Abeta42 or low hippocampal volume was more strongly related to cognitive outcome than each single biomarker. Higher CSF t-Tau was the only biomarker associated with subsequent decline in MMSE score. CONCLUSIONS: Baseline CSF t-Tau and p-Tau181, in vivo amyloid load, and hippocampal volume were all independently associated with future decline in cognition. The discriminatory ability of these biomarkers to predict risk of cognitive decline, however, was only modest. PMID- 29036826 TI - What Can Quantitative Gait Analysis Tell Us about Dementia and Its Subtypes? A Structured Review. AB - Distinguishing dementia subtypes can be difficult due to similarities in clinical presentation. There is increasing interest in discrete gait characteristics as markers to aid diagnostic algorithms in dementia. This structured review explores the differences in quantitative gait characteristics between dementia and healthy controls, and between four dementia subtypes under single-task conditions: Alzheimer's disease (AD), dementia with Lewy bodies and Parkinson's disease dementia, and vascular dementia. Twenty-six papers out of an initial 5,211 were reviewed and interpreted using a validated model of gait. Dementia was associated with gait characteristics grouped by slower pace, impaired rhythm, and increased variability compared to normal aging. Only four studies compared two or more dementia subtypes. People with AD are less impaired in pace, rhythm, and variability domains of gait compared to non-AD dementias. Results demonstrate the potential of gait as a clinical marker to discriminate between dementia subtypes. Larger studies using a more comprehensive battery of gait characteristics and better characterized dementia sub-types are required. PMID- 29036827 TI - Validation by Magnetic Resonance Imaging of the Diagnostic Potential of a Heptapeptide-Functionalized Imaging Probe Targeted to Amyloid-beta and Able to Cross the Blood-Brain Barrier. AB - The diagnosis of Alzheimer's disease (AD) is a critical step in the management of patients. We have developed a non-invasive diagnosis tool based on magnetic resonance molecular imaging (MRMI) of amyloid-beta peptide using ultra-small particles of iron oxide (USPIO) functionalized with a disulfide constrained cyclic heptapeptide (PHO) identified by phage display (USPIO-PHO). After previously demonstrating the optimal pharmacologic properties of USPIO-PHO and its capacity to cross the blood-brain barrier (BBB), the ability of USPIO-PHO to target amyloid plaques (AP) by MRMI has been validated in the present work on AD transgenic mice. The immunohistochemistry and immunofluorescent detection of USPIO-PHO on brain sections collected after in vivo MRMI studies enabled its colocalization with AP, confirming the BBB passage and specific targeting. The AP targeting by USPIO-PHO has been moreover corroborated by the good correlation between the number of AP detected with anti-amyloid beta antibody and Perls'-DAB staining. Finally, the crossing mechanism of USPIO-PHO through the BBB was elucidated, revealing the involvement of non-degradation pathway of caveolae, while the control contrast agent USPIO-PEG was not endocytosed by the human brain endothelial cells. PMID- 29036829 TI - microRNA 221 Targets ADAM10 mRNA and is Downregulated in Alzheimer's Disease. AB - ADAM10 is the alpha-secretase that cleaves amyloid-beta protein precursor in the non-amyloidogenic pathway in Alzheimer's disease (AD) and is known to be regulated by different microRNAs (miRNAs), which are post-transcriptional regulators related to several biological and pathological processes, including AD. Here we proposed to explore and validate miRNAs that have direct or indirect relations to the AD pathophysiology and ADAM10 gene. Approximately 700 miRNAs were analyzed and 21 differentially expressed miRNAs were validated in a sample of 21 AD subjects and 17 cognitively healthy matched controls. SH-SY5Y cells were transfected with miR-144-5p, miR-221, and miR-374 mimics and inhibitors, and ADAM10 protein levels were evaluated. miR-144-5p, miR-221, and miR-374 were downregulated in AD. The overexpression of miR-221 in SH-SY5Y cells resulted in ADAM10 reduction and its inhibition in ADAM10 increased. These findings show that miR-221 can be a new potential therapeutic target for increasing ADAM10 levels in AD. In addition, these results can contribute to the better understanding of ADAM10 post-transcriptional regulation. PMID- 29036830 TI - Our Working Point of View of Tau Protein. AB - Tau protein, which was discovered in Prof. Kirschner's laboratory in 1975, has been the focus of my research over the last 40 years. In this issue of the Journal of Alzheimer's Disease commemorating its 20th year of publication, I will provide a short review of some of the features of my relationship with tau. PMID- 29036828 TI - Mitochondria and Mitochondrial Cascades in Alzheimer's Disease. AB - Decades of research indicate mitochondria from Alzheimer's disease (AD) patients differ from those of non-AD individuals. Initial studies revealed structural differences, and subsequent studies showed functional deficits. Observations of structure and function changes prompted investigators to consider the consequences, significance, and causes of AD-related mitochondrial dysfunction. Currently, extensive research argues mitochondria may mediate, drive, or contribute to a variety of AD pathologies. The perceived significance of these mitochondrial changes continues to grow, and many currently believe AD mitochondrial dysfunction represents a reasonable therapeutic target. Debate continues over the origin of AD mitochondrial changes. Some argue amyloid-beta (Abeta) induces AD mitochondrial dysfunction, a view that does not challenge the amyloid cascade hypothesis and that may in fact help explain that hypothesis. Alternatively, data indicate mitochondrial dysfunction exists independent of Abeta, potentially lies upstream of Abeta deposition, and suggest a primary mitochondrial cascade hypothesis that assumes mitochondrial pathology hierarchically supersedes Abeta pathology. Mitochondria, therefore, appear at least to mediate or possibly even initiate pathologic molecular cascades in AD. This review considers studies and data that inform this area of AD research. PMID- 29036831 TI - Dementia Pugilistica Revisited. AB - Extensive exposure of boxers to neurotrauma in the early 20th century led to the so-called punch drunk syndrome, which was formally recognized in the medical literature in 1928. "Punch drunk" terminology was replaced by the less derisive 'dementia pugilistica' in 1937. In the early case material, the diagnosis of dementia pugilistica required neurological deficits, including slurring dysarthria, ataxia, pyramidal signs, extrapyramidal signs, memory impairment, and personality changes, although the specific clinical substrate has assumed lesser importance in recent years with a shift in focus on molecular pathogenesis. The postmortem neuropathology of dementia pugilistica has also evolved substantially over the past 90 years, from suspected concussion-related hemorrhages to diverse structural and neurofibrillary changes to geographic tauopathy. Progressive neurodegenerative tauopathy is among the prevailing theories for disease pathogenesis currently, although this may be overly simplistic. Careful examination of historical cases reveals both misdiagnoses and a likelihood that dementia pugilistica at that time was caused by cumulative structural brain injury. More recent neuropathological studies indicate subclinical and possibly static tauopathy in some athletes and non-athletes. Indeed, it is unclear from the literature whether retired boxers reach the inflection point that tends toward progressive neurodegeneration in the manner of Alzheimer's disease due to boxing. Even among historical cases with extreme levels of exposure, progressive disease was exceptional. PMID- 29036832 TI - Neuropathological Comparison of Adult Onset and Juvenile Huntington's Disease with Cerebellar Atrophy: A Report of a Father and Son. AB - BACKGROUND: Huntington's disease (HD) is an autosomal dominant neurodegenerative disease caused by a trinucleotide (CAG) repeat expansion in huntingtin (HTT) on chromosome 4. Anticipation can cause longer repeat expansions in children of HD patients. Juvenile Huntington's disease (JHD), defined as HD arising before age 20, accounts for 5-10% of HD cases, with cases arising in the first decade accounting for approximately 1%. Clinically, JHD differs from the predominately choreiform adult onset Huntington's disease (AOHD) with variable presentations, including symptoms such as myoclonus, seizures, Parkinsonism, and cognitive decline. OBJECTIVE: The neuropathologic changes of AOHD are well characterized, but there are fewer reports that describe the neuropathology of JHD. Here we report a case of a six-year-old boy with paternally-inherited JHD caused by 169 CAG trinucleotide repeats who presented at age four with developmental delay, dysarthria, and seizures before dying at age 6. The boy's clinical presentation and neuropathological findings are directly compared to those of his father, who presented with AOHD and 54 repeats. METHODS: A full autopsy was performed for the JHD case and a brain-only autopsy was performed for the AOHD case. Histochemically- and immunohistochemically-stained slides were prepared from formalin-fixed, paraffin-embedded tissue sections. RESULTS: Both cases had neuropathology corresponding to Vonsattel grade 3. The boy also had cerebellar atrophy with huntingtin-positive inclusions in the cerebellum, findings not present in the father. CONCLUSIONS: Autopsies of father and son provide a unique opportunity to compare and contrast the neuropathologic findings of juvenile and adult onset HD while also providing the first immunohistochemical evidence of cerebellar involvement in JHD. Additionally this is the first known report to include findings from peripheral tissue in a case of JHD. PMID- 29036833 TI - Gsk3beta aggravates the depression symptoms in chronic stress mouse model. AB - Depression caused by genetic and environmental factors is acomplicated disease. Here, it is demonstrated that glycogen synthase kinase-3beta is highly expressed and phosphorylated in the brain of a chronic stress mouse. Inhibition of glycogen synthase kinase-3betaleads to decreased depression-like symptoms which manifest in open-field test, tail-suspension test, forced swim test, and a novelty suppressed feeding test. It was also found that beta-catenin is attenuated, and its target genes Cyclin D1 and c-Myc are down-regulated. Glycogen synthase kinase 3beta was also found to inhibit Erk-Creb-BDNF signaling. These results show that glycogen synthase kinase-3beta may promote the progression of depression. Therefore, targeting glycogen synthase kinase-3beta may be an effective therapeutic strategy. PMID- 29036834 TI - Association between SORL1 polymorphisms and the risk of Alzheimer's disease. AB - A meta-analysis was performed to identify empirical data assessing the effects of a single nucleotide polymorphisms of sortilin related receptor on Alzheimer's disease based on 14 studies involving 37941 cases and 49727 control studies. Analysis showed, (i) Increased risk between the single nucleotidepolymorphisms (rs641120, rs1010159) and Alzheimer's disease susceptibility inAsian populations, (ii) Single nucleotide polymorphism rs689021 was associatedwith decreased risk in Caucasians, and (iii) Single nucleotide polymorphismrs641120 was detected as a decreased risk in both populations. Given thesedata, crucial evidence is provided to demonstrate that a significantrelationship exists between SORL1 polymorphisms and susceptibility to Alzheimer's disease. PMID- 29036835 TI - Therapeutic role of long non-coding RNA TCONS_00019174 in depressive disorders is dependent on Wnt/beta-catenin signaling pathway. AB - Chronic stress is one of the major causes that lead to major depressive disorder, which is a prevalent mood disorder worldwide. Many patients with major depressive disorder do not benefit from available medication due to the complex etiology of the condition. Recently, long non-coding RNAs, molecular switches of downstream genes expression, have been reported to be involved in the pathogenesis of major depressive disorder. The long non-coding RNA TCONS_00019174 has been implicated in major depressive disorder risk and antidepressant effects, However, the effect of long non-coding RNA TCONS_00019174 on antidepressant responses has not been investigated. This study is designed to determine whether altered expression of long non-coding RNA TCONS_00019174 contributes to depression-like behaviors associated with chronic stress. We found that mice exposed to chronic ultra-mild stress displayed apparent depression-like behaviors and decreased expression of long non-coding RNA TCONS_00019174 in hippocampus. Both changed behaviors and long non-coding RNA TCONS_00019174 expression level were rescued by chronic treatment with imipramine. Viral-mediated long non-coding RNA TCONS_00019174 over expression in hippocampal neurons improved the behaviors of mice exposed to chronic ultra-mild stress. Further, it was found long non-coding RNA TCONS_00019174 over expression upregulated phosphorylated-GSK3beta (p-GSK3beta) protein and beta-catenin in the hippocampus. These findings suggest that long non coding RNA TCONS_00019174 exerts antidepressant-like effect in mice by activating a Wnt/beta-catenin pathway, and that long non-coding RNA may serve as a potential therapeutic target for major depressive disorder in clinical application. PMID- 29036836 TI - A Panel of Slow-Channel Syndrome Mice Reveals a Unique Locomotor Behavioral Signature. AB - Muscle nicotinic acetylcholine receptor (nAChR) mutations can lead to altered channel kinetics and neuromuscular junction degeneration, a neurodegenerative disorder collectively known as slow-channel syndrome (SCS). A multivariate analysis using running wheels was used to generate activity profiles for a variety of SCS models, uncovering unique locomotor patterns for the different nAChR mutants. Particularly, the alphaL251T and EL269F mutations exhibit decreased event distance, duration, and velocity over a period of 24 hours. Our approach suggests a robust relationship between the pathophysiology of SCS and locomotor activity. PMID- 29036838 TI - Neurosexuality: A transdisciplinary approach to sexuality in neurorehabilitation. PMID- 29036839 TI - Stroke and sexual functioning: A literature review. AB - BACKGROUND: Stroke has multiple impacts on patients' sexual functioning, be it directly caused by the neurological lesion (s) or indirectly triggered via other psychophysiological processes. Despite a growing number of publications, sexuality is still rarely addressed in the stroke literature - yet, patients have indicated their need for sexual rehabilitation services. OBJECTIVE: To provide a literature review on post-stroke sexual functioning as well as available rehabilitation programs targeting patients' sexuality. METHODS: A systematic literature review was conducted on PubMed using the following key words and their combination: "stroke", "sexuality", "stroke characteristics", "hemisphere", "sexual", and "sexual dysfunction". RESULTS: Existing data suggests the existence of significant associations between stroke and male and female sexual dysfunction (SD) as well as desire/libido and sexual satisfaction. The exact contribution of patients' neurological profile (stroke laterality, location, and severity) on their SD remains inconclusive with research providing mixed findings. Psychological factors are shown to play a significant part in the development of patients' SDs. A few intervention programs have been developed to specifically guide health professionals when addressing patients' needs regarding their sexual recovery. CONCLUSION: Sexual rehabilitation needs to be an integrative part of stroke patients' rehabilitation process, preferably at the interdisciplinary level. PMID- 29036840 TI - Efficacy of memory aids after traumatic brain injury: A single case series. AB - BACKGROUND: Individuals living with traumatic brain injury commonly have difficulties with prospective memory-the ability to remember a planned action at the intended time. Traditionally a memory notebook has been recommended as a compensatory memory aid. Electronic devices have the advantage of providing a cue at the appropriate time to remind participants to refer to the memory aid and complete tasks. Research suggests these have potential benefit in neurorehabilitation. OBJECTIVE: This study aimed to investigate the efficacy of a memory notebook and specifically a smartphone as a compensatory memory aid. METHODS: A single case series design was used to assess seven participants. A no intervention baseline was followed by training and intervention with either the smartphone alone, or a memory notebook and later the smartphone. Memory was assessed with weekly assigned memory tasks. RESULTS: Participants using a smartphone showed improvements in their ability to complete assigned memory tasks accurately and within the assigned time periods. Use of a smartphone provided additional benefits over and above those already seen for those who received a memory notebook first. CONCLUSIONS: Smartphones have the potential to be a useful and cost effective tool in neurorehabilitation practice. PMID- 29036841 TI - Home and family in cognitive rehabilitation after brain injury: Implementation of social reserves. AB - The focus of the present article is the home and family environment of patients suffering acquired brain injury. In order to obtain the optimal outcome of posttraumatic cognitive rehabilitation it is important (a) to obtain a sufficient intensity of rehabilitative training, (b) to achieve the maximum degree of generalization from formalized training to the daily environment of the patient, and (c) to obtain the best possible utilization of "cognitive reserves" in the form of cognitive abilities and "strategies" acquired pretraumatically. Supplementing the institution-based cognitive training with (potentially computer based) home-based training these three goals may more easily be met. Home-based training supports a higher intensity of training. Training in the home environment also allows better utilization of cognitive strategies acquired pretraumatically and more direct transfer of training results from formalized training to activities of daily living of the patient. PMID- 29036842 TI - Investigating the discrepancy between subjective and objective cognitive impairment following acquired brain injury: The role of psychological affect. AB - BACKGROUND: Previous research examining the use of self-reported cognitive impairment as a reliable predictor of actual objective cognitive impairment (OCI) has provided mixed results. OBJECTIVE: The current study aimed to examine the potential discrepancy between subjective and objective cognitive impairment in a sample of individuals with an acquired brain injury (ABI). METHOD: Twenty-four participants, recruited from a community brain injury service, completed an objective neuropsychological assessment and a series of self-report questionnaires assessing psychological affect and perceived cognitive difficulties. RESULTS: Correlational analyses revealed no association between objective cognitive impairment and self-reported subjective cognitive impairment. Conversely, psychological affect, such as anxiety and depression, was found to be highly correlated with subjective cognitive impairment. A hierarchical regression analysis revealed psychological affect as a significant predictor of subjective cognitive impairment. Objectively measured cognitive impairment was found to be non-significant. CONCLUSIONS: These findings suggest that an individual's subjective experience of their cognitive difficulties following ABI are not associated with their actual objective cognitive impairment. Clinicians may benefit from considering other possible psychological factors that may play a more crucial role in a patient's appraisals of their cognitive impairments. PMID- 29036844 TI - Multiple sclerosis and sexual dysfunction: A need for further education and interdisciplinary care. AB - BACKGROUND: Multiple sclerosis (MS) is an autoimmune condition affecting young women and men, resulting in varied disabilities, including sexual dysfunction. OBJECTIVE: This narrative review aims to describe the prevalence, pathophysiology, and impact of sexual dysfunction in people with MS (PwMS); provide a review of current assessment and treatment strategies; and offer considerations for future care. METHODS: Literature review was performed to identify primary and secondary sources discussing sexual dysfunction in PwMS. RESULTS: Sexual dysfunction is common in PwMS and can occur throughout the disease course. Sexual dysfunction is associated with depression, reduced quality of life, and may have broader implications related to relationships, fertility, pregnancy, and parenting. The etiology is often multifactorial and can be classified as primary, secondary, or tertiary dysfunction. Sexual dysfunction in PwMS is underdiagnosed and undertreated; however, many healthcare providers may already have the skills required to care for PwMS with sexual dysfunction. CONCLUSIONS: Additional education for providers regarding the approach to assessment and management of sexual dysfunction, their potential role in treatment, and available specialized resources is needed. The role of interdisciplinary care with collaboration among providers should be considered. Further research should evaluate the impact of specific assessment tools and treatments on sexual dysfunction in PwMS. PMID- 29036843 TI - Aberrant peak lactate response in MS. AB - BACKGROUND: The peak blood lactate response to an exhaustive exercise test in a number of chronic conditions has been shown to differ from that seen in healthy, untrained individuals. However, this has not been investigated for patients with multiple sclerosis (MS). OBJECTIVE: The main objective was to determine and compare the peak blood lactate response to exercise and the maximal workload between two groups of MS patients with different illness severity. METHODS: Twenty-five patients with a relapsing-remitting disease course (Group RR) and 41 patients with a secondary- or primary chronic progressive disease course (group CP) performed an exhaustive incremental bicycle ergometry. Peak blood lactate, maximal workload, peak oxygen consumption and maximal heart rate were measured. RESULTS: The peak blood lactate levels and maximal workload differed significantly between the groups (group CP < group RR; p < 0.001). Furthermore spiroergometric peak performance markers in both groups were significantly lower than predicted for healthy age and sex matched untrained groups. CONCLUSION: A reduced peak blood lactate response to exercise is a novel finding for MS patients. This calls into doubt if the lactate performance tests and lactate thresholds used for healthy individuals can be transferred to MS patients. PMID- 29036837 TI - Simvastatin as a Potential Disease-Modifying Therapy for Patients with Parkinson's Disease: Rationale for Clinical Trial, and Current Progress. AB - Many now believe the holy grail for the next stage of therapeutic advance surrounds the development of disease-modifying approaches aimed at intercepting the year-on-year neurodegenerative decline experienced by most patients with Parkinson's disease (PD). Based on recommendations of an international committee of experts who are currently bringing multiple, potentially disease-modifying, PD therapeutics into long-term neuroprotective PD trials, a clinical trial involving 198 patients is underway to determine whether Simvastatin provides protection against chronic neurodegeneration. Statins are widely used to reduce cardiovascular risk, and act as competitive inhibitors of HMG-CoA reductase. It is also known that statins serve as ligands for PPARalpha, a known arbiter for mitochondrial size and number. Statins possess multiple cholesterol-independent biochemical mechanisms of action, many of which offer neuroprotective potential (suppression of proinflammatory molecules & microglial activation, stimulation of endothelial nitric oxide synthase, inhibition of oxidative stress, attenuation of alpha-synuclein aggregation, modulation of adaptive immunity, and increased expression of neurotrophic factors). We describe the biochemical, physiological and pharmaceutical credentials that continue to underpin the rationale for taking Simvastatin into a disease-modifying trial in PD patients. While unrelated to the Simvastatin trial (because this conducted in patients who already have PD), we discuss conflicting epidemiological studies which variously suggest that statin use for cardiovascular prophylaxis may increase or decrease risk of developing PD. Finally, since so few disease-modifying PD trials have ever been launched (compared to those of symptomatic therapies), we discuss the rationale of the trial structure we have adopted, decisions made, and lessons learnt so far. PMID- 29036845 TI - Sexual concerns after Spinal Cord Injury: An update on management. AB - BACKGROUND: Spinal Cord Injury (SCI) causes neurological impairment with resultant neurogenic sexual dysfunction which can compound preexisting psychological and medical sexual concerns. Understanding these concerns is important in managing the lifelong needs of persons with SCIs. OBJECTIVES: To provide an overview of the impact of SCI on sexuality along with a framework for treatment of sexual concerns. To briefly review male infertility and its treatments and pregnancy in females after SCI. METHODS: Interdisciplinary literature review and synthesis of information. RESULTS: The average age at SCI is increased, thus persons with SCIs may have preexisting sexual concerns. Sexual activity and satisfaction are decreased after SCI. Psychogenic sexual arousal is related to remaining sensation in the T11-L2 dermatomes. Orgasm occurs in approximately 50% of persons with SCIs with all injuries except subjects with complete lower motor neuron (LMN) injuries affecting the lowest sacral segments A structured approach to treatment including assessing preinjury function, determining the impact of injury, education, assessing and treating iatrogenic sexual dysfunction and treatment of concomitant problems is recommended. Basic and advanced methods to improve sexual arousal and orgasm are discussed and treatment of anejaculation and issues associated with pregnancy and SCI are reviewed. CONCLUSIONS: Sexual satisfaction is impaired after SCI; however, education and new therapies can improve responsiveness. Future research is warranted to improve sexual function and fertility potential in persons with SCIs. PMID- 29036846 TI - Perceptions of sexuality in individuals with Amyotrophic Lateral Sclerosis (ALS) and their treating clinicians. AB - INTRODUCTION: Amyotrophic Lateral Sclerosis (ALS) may not affect an individual's sexual function directly, but it can indirectly impact their sexual activity. Sexual partners often become caregivers, diminishing sexuality within a relationship. This can result in decline of quality of life. OBJECTIVE: The study aimed to explore the perspectives of individuals with ALS and their treating clinicians regarding the importance of sexuality in rehabilitation within a multidisciplinary ALS center. We hypothesize that individuals with ALS will express the need for sexuality-related discussions as a therapy. METHOD: Electronic 11-item questionnaires were anonymously completed by individuals with ALS (n = 21) and ALS healthcare professionals (n = 81) between August 2014 to June 2016. Descriptive statistics were performed in STATA 14. RESULTS: Majority (90%, n = 92) of respondents stated that ALS impacts the sexuality of an individual with ALS, and agreed that sexuality-related discussion is needed as a complementary therapy. Over 75% of clinicians reported they were not familiar with any strategies or interventions to help the patients. CONCLUSION: ALS indirectly affects sexuality, thus confirming the need for promoting awareness regarding sexuality-related topics among individuals with ALS and healthcare professionals. ALS multidisciplinary clinics need to improve their delivery of care to address sexual rehabilitation as a complementary therapy. PMID- 29036847 TI - Trail Making Test: Normative data for the Latin American Spanish-speaking pediatric population. AB - OBJECTIVE: To generate normative data for the Trail Making Test (TMT) in Spanish speaking pediatric populations. METHOD: The sample consisted of 3,337 healthy children from nine countries in Latin America (Chile, Cuba, Ecuador, Guatemala, Honduras, Mexico, Paraguay, Peru, and Puerto Rico) and Spain. Each participant was administered the TMT as part of a larger neuropsychological battery. The TMT A and TMT-B scores were normed using multiple linear regressions and standard deviations of residual values. Age, age2, sex, and mean level of parental education (MLPE) were included as predictors in the analyses. RESULTS: The final multiple linear regression models showed main effects for age on both scores, such that as children needed less time to complete the test while they become older. TMT-A scores were affected by age2 for all countries except, Cuba, Guatemala, and Puerto. TMT-B scores were affected by age2 for all countries except, Guatemala and Puerto Rico. Models indicated that children whose parent(s) had a MLPE >12 years of education needed less time to complete the test compared to children whose parent(s) had a MLPE <=12 years for Mexico and Paraguay in TMT A scores; and Ecuador, Mexico, Paraguay, and Spain for TMT-B scores. Sex affected TMT-A scores for Chile, Cuba, Mexico, and Peru, in that boys needed less time to complete the test than girls. Sex did not affect TMT-B scores. CONCLUSIONS: This is the largest Spanish-speaking pediatric normative study in the world, and it will allow neuropsychologists from these countries to have a more accurate approach to interpret the TMT in pediatric populations. PMID- 29036848 TI - Concentration Endurance Test (d2): Normative data for Spanish-speaking pediatric population. AB - OBJECTIVE: To generate normative data for the Concentration Endurance Test (d2) in Spanish-speaking pediatric populations. METHOD: The sample consisted of 4,373 healthy children from nine countries in Latin America (Chile, Cuba, Ecuador, Guatemala, Honduras, Mexico, Paraguay, Peru, and Puerto Rico) and Spain. Each participant was administered the d2 test as part of a larger neuropsychological battery. The Total number of items processed (TN), Total number of correct responses (CR), Total performance (TP), and Concentration performance (CP) scores were normed using multiple linear regressions and standard deviations of residual values. Age, age2, sex, and mean level of parental education (MLPE) were included as predictors in the analyses. RESULTS: The final multiple linear regression models showed main effects for age on all scores, such that scores increased linearly as a function of age. TN scores were affected by age2 for Guatemala and Puerto Rico; CR scores were affected by age2 for Mexico; TP scores were affected by age2 for Chile, Mexico, Puerto Rico, and Spain; and CP scores for Mexico and Spain. Models indicated that children whose parents had a MLPE >12 years obtained higher scores compared to children whose parents had a MLPE<=12 years for Mexico and Spain in all scores, and Puerto Rico for TN, CR, and TP, and Guatemala and Paraguay for CP scores. Sex affect the scores for Ecuador and Honduras (CP scores). CONCLUSIONS: This is the largest Spanish-speaking pediatric normative study in the world, and it will allow neuropsychologists from these countries to have a more accurate approach to interpret the d2 test in pediatric populations. PMID- 29036849 TI - Newly developed Learning and Verbal Memory Test (TAMV-I): Normative data for Spanish-speaking pediatric population. AB - OBJECTIVE: To generate normative data for the Learning and Verbal Memory Test (TAMV-I) in Spanish-speaking pediatric populations. METHOD: The sample consisted of 4,373 healthy children from nine countries in Latin America (Chile, Cuba, Ecuador, Guatemala, Honduras, Mexico, Paraguay, Peru, and Puerto Rico) and Spain. Each participant was administered the TAMV-I as part of a larger neuropsychological battery. Free recall, memory delay and recognition scores were normed using multiple linear regressions and standard deviations of residual values. Age, age2, sex, and mean level of parental education (MLPE) were included as predictors in the analyses. RESULTS: The final multiple linear regression models indicated main effects for age on all scores, such that scores increased linearly as a function of age. Age2 had a significant effect in all countries except Cuba, and Puerto Rico for free recall score; a significant effect for memory delay score in all countries except Cuba and Puerto Rico; and a significant effect for recognition score in in all countries except Guatemala, Honduras, and Puerto Rico. Models showed an effect for MLPE in Chile (free recall), Honduras (free recall), Mexico (free recall), Puerto Rico (free recall, memory delay, and recognition), and Spain (free recall and memory delay). Sex affected free recall score for Cuba, Ecuador, Guatemala, Mexico, Paraguay, Peru, and Spain, memory delay score for all countries except Chile, Paraguay, and Puerto Rico, and recognition score for Ecuador, Mexico, Peru, and Spain, with girls scoring higher than boys. CONCLUSIONS: This is the largest Spanish-speaking pediatric normative study in the world, and it will allow neuropsychologists from these countries to have a more accurate way to interpret the TAMV-I with pediatric populations. PMID- 29036850 TI - Methodology for the development of normative data for Spanish-speaking pediatric populations. AB - OBJECTIVE: To describe the methodology utilized to calculate reliability and the generation of norms for 10 neuropsychological tests for children in Spanish speaking countries. METHOD: The study sample consisted of over 4,373 healthy children from nine countries in Latin America (Chile, Cuba, Ecuador, Guatemala, Honduras, Mexico, Paraguay, Peru, and Puerto Rico) and Spain. Inclusion criteria for all countries were to have between 6 to 17 years of age, an Intelligence Quotient of>=80 on the Test of Non-Verbal Intelligence (TONI-2), and score of <19 on the Children's Depression Inventory. Participants completed 10 neuropsychological tests. Reliability and norms were calculated for all tests. RESULTS: Test-retest analysis showed excellent or good- reliability on all tests (r's>0.55; p's<0.001) except M-WCST perseverative errors whose coefficient magnitude was fair. All scores were normed using multiple linear regressions and standard deviations of residual values. Age, age2, sex, and mean level of parental education (MLPE) were included as predictors in the models by country. The non-significant variables (p > 0.05) were removed and the analysis were run again. CONCLUSIONS: This is the largest Spanish-speaking children and adolescents normative study in the world. For the generation of normative data, the method based on linear regression models and the standard deviation of residual values was used. This method allows determination of the specific variables that predict test scores, helps identify and control for collinearity of predictive variables, and generates continuous and more reliable norms than those of traditional methods. PMID- 29036851 TI - A novel low-cost approach for navigated transcranial magnetic stimulation. AB - BACKGROUND: Transcranial magnetic stimulation (TMS) is commonly used for assessing or modulating brain excitability. However, the credibility of TMS outcomes depends on accurate and reliable coil placement during stimulation. Navigated TMS systems can address this issue, but these systems are expensive for routine use in clinical and research environments. OBJECTIVE: The purpose of this study was to provide a high-quality open source framework for navigated TMS and test its reliability and accuracy using standard TMS procedures. METHODS: A navigated TMS system was created using a low-cost 3D camera system (OptiTrack Trio), which communicates with our free and open source software environment programmed using the Unity 3D gaming engine. The environment is user friendly and has functions to allow for a variety of stimulation procedures (e.g., head and coil co-registration, multiple hotspot/grid tracking, intuitive matching, and data logging). The system was then validated using a static mockup of a TMS session. The clinical utility was also evaluated by assessing the repeatability and operator accuracy when collecting motor evoked potential (MEP) data from human subjects. RESULTS: The system was highly reliable and improved coil placement accuracy (position error = 1.2 mm and orientation error = 0.3 degrees ) as well as the quality and consistency (ICC >0.95) of MEPs recorded during TMS. CONCLUSION: These results indicate that the proposed system is a viable tool for reliable coil placement during TMS procedures, and can improve accuracy in locating the coil over a desired hotspot both within and between sessions. PMID- 29036852 TI - Rehabilitation modality and onset differentially influence whisker sensory hypersensitivity after diffuse traumatic brain injury in the rat. AB - BACKGROUND: As rehabilitation strategies advance as therapeutic interventions, the modality and onset of rehabilitation after traumatic brain injury (TBI) are critical to optimize treatment. Our laboratory has detected and characterized a late-onset, long-lasting sensory hypersensitivity to whisker stimulation in diffuse brain-injured rats; a deficit that is comparable to visual or auditory sensory hypersensitivity in humans with an acquired brain injury. OBJECTIVE: We hypothesize that the modality and onset of rehabilitation therapies will differentially influence sensory hypersensitivity in response to the Whisker Nuisance Task (WNT) as well as WNT-induced corticosterone (CORT) stress response in diffuse brain-injured rats and shams. METHODS: After midline fluid percussion brain injury (FPI) or sham surgery, rats were assigned to one of four rehabilitative interventions: (1) whisker sensory deprivation during week one or (2) week two or (3) whisker stimulation during week one or (4) week two. At 28 days following FPI and sham procedures, sensory hypersensitivity was assessed using the WNT. Plasma CORT was evaluated immediately following the WNT (aggravated levels) and prior to the pre-determined endpoint 24 hours later (non aggravated levels). RESULTS: Deprivation therapy during week two elicited significantly greater sensory hypersensitivity to the WNT compared to week one (p < 0.05), and aggravated CORT levels in FPI rats were significantly lower than sham levels. Stimulation therapy during week one resulted in low levels of sensory hypersensitivity to the WNT, similar to deprivation therapy and naive controls, however, non-aggravated CORT levels in FPI rats were significantly higher than sham. CONCLUSION: These data indicate that modality and onset of sensory rehabilitation can differentially influence FPI and sham rats, having a lasting impact on behavioral and stress responses to the WNT, emphasizing the necessity for continued evaluation of modality and onset of rehabilitation after TBI. PMID- 29036853 TI - Smooth leader or sharp follower? Playing the mirror game with a robot. AB - BACKGROUND: The increasing number of opportunities for human-robot interactions in various settings, from industry through home use to rehabilitation, creates a need to understand how to best personalize human-robot interactions to fit both the user and the task at hand. In the current experiment, we explored a human robot collaborative task of joint movement, in the context of an interactive game. OBJECTIVE: We set out to test people's preferences when interacting with a robotic arm, playing a leader-follower imitation game (the mirror game). METHODS: Twenty two young participants played the mirror game with the robotic arm, where one player (person or robot) followed the movements of the other. Each partner (person and robot) was leading part of the time, and following part of the time. When the robotic arm was leading the joint movement, it performed movements that were either sharp or smooth, which participants were later asked to rate. RESULTS: The greatest preference was given to smooth movements. Half of the participants preferred to lead, and half preferred to follow. Importantly, we found that the movements of the robotic arm primed the subsequent movements performed by the participants. CONCLUSION: The priming effect by the robot on the movements of the human should be considered when designing interactions with robots. Our results demonstrate individual differences in preferences regarding the role of the human and the joint motion path of the robot and the human when performing the mirror game collaborative task, and highlight the importance of personalized human-robot interactions. PMID- 29036854 TI - Functional repertoire of interleukin-6 in the central nervous system - a review. AB - In an aging society with dementia imposing an increasing threat to higher brain cognitive functions, understanding the molecular and cellular events of adult neurogenesis is imperative. Interleukin-6 (IL-6), along with its agonistic acting soluble receptor sIL-6R (the combined proteins are also known as Hyper-IL-6), is a promising cytokine that can support neurogenesis under conditions of neurodegeneration when neuron replacement is needed. In contrast to the previously reported gliogenic effects of activation of the IL-6-signal transducer and activator of transcription 3 (STAT3) axis, this review summarizes recent studies showing that IL-6 activation can be neurogenic and has potential therapeutic applications for the treatment of neurodegenerative diseases such as Parkinson's disease. PMID- 29036855 TI - Diagnostic criteria for persistent postural-perceptual dizziness (PPPD): Consensus document of the committee for the Classification of Vestibular Disorders of the Barany Society. AB - This paper presents diagnostic criteria for persistent postural-perceptual dizziness (PPPD) to be included in the International Classification of Vestibular Disorders (ICVD). The term PPPD is new, but the disorder is not. Its diagnostic criteria were derived by expert consensus from an exhaustive review of 30 years of research on phobic postural vertigo, space-motion discomfort, visual vertigo, and chronic subjective dizziness. PPPD manifests with one or more symptoms of dizziness, unsteadiness, or non-spinning vertigo that are present on most days for three months or more and are exacerbated by upright posture, active or passive movement, and exposure to moving or complex visual stimuli. PPPD may be precipitated by conditions that disrupt balance or cause vertigo, unsteadiness, or dizziness, including peripheral or central vestibular disorders, other medical illnesses, or psychological distress. PPPD may be present alone or co-exist with other conditions. Possible subtypes await future identification and validation. The pathophysiologic processes underlying PPPD are not fully known. Emerging research suggests that it may arise from functional changes in postural control mechanisms, multi-sensory information processing, or cortical integration of spatial orientation and threat assessment. Thus, PPPD is classified as a chronic functional vestibular disorder. It is not a structural or psychiatric condition. PMID- 29036856 TI - Informal care, employment and quality of life: Barriers and facilitators to combining informal care and work participation for healthcare professionals. AB - BACKGROUND: In The Netherlands, one out of six Dutch employees has informal care tasks; in the hospital and healthcare sector, this ratio is one out of four workers. Informal carers experience problems with the combination of work and informal care. In particular, they have problems with the burden of responsibility, a lack of independence and their health. These problems can reveal themselves in a variety of mental and physical symptoms that can result in absenteeism, reduction or loss of (work) participation, reduction of income, and even social isolation. OBJECTIVE: The aim of the study was to describe the factors that informal carers who are employed in healthcare organizations identify as affecting their quality of life, labour participation and health. METHODS: We conducted an exploratory study in 2013-2014 that included desk research and a qualitative study. Sixteen semi-structured interviews were conducted with healthcare employees who combine work and informal care. Data were analyzed with Atlas-TI. RESULTS: We identified five themes: 1. Fear and responsibility; 2. Sense that one's own needs are not being met; 3. Work as an escape from home; 4. Health: a lack of balance; and 5. The role of colleagues and managers: giving support and understanding. CONCLUSIONS: Respondents combine work and informal care because they have no other solution. The top three reasons for working are: income, escape from home and satisfaction. The biggest problems informal carers experience are a lack of time and energy. They are all tired and are often or always exhausted at the end of the day. They give up activities for themselves, their social networks become smaller and they have less interest in social activities. Their managers are usually aware of the situation, but informal care is not a topic of informal conversation or in performance appraisals. Respondents solve their problems with colleagues and expect little from the organization. PMID- 29036857 TI - Outcomes of safe patient handling and mobilization programs: A meta-analysis. AB - BACKGROUND: Variability in patient care settings and the range of patient handling tasks present challenges in developing and evaluating safe patient handling and mobilization (SPHM) programs. OBJECTIVE: We performed a systematic meta-analysis of SPHM program evaluations. METHODS: Systematic literature review identified published SPHM program evaluations. Injury Rate Ratios (IRR), pre- to post-intervention, were used to estimate intervention effects and to examine the influence of patient care level, program components, and follow-up time using meta-regression. RESULTS: 27 articles reported evaluations from 44 sites. Combined effect estimate for all SPHM programs was 0.44 (95% CI 0.36, 0.54), reflecting substantial injury reductions after program implementation. While specific program components were not associated with greater effectiveness, longer follow-up duration was associated with greater injury rate reduction (p = 0.01) and intervention effects varied by level of care (p = 0.01), with the greatest effect in intensive care unit interventions (IRR 0.14; 95% CI 0.07, 0.30). CONCLUSIONS: SPHM programs appear to be highly effective in reducing injuries. More research is needed to identify the most effective interventions for different patient care levels. PMID- 29036859 TI - From awareness to action: Sudbury, mining and occupational disease in a time of change. AB - BACKGROUND: Miners work in highly hazardous environments, but surprisingly, there are more fatalities from occupational diseases, including cancers, than from fatalities from injuries. Over the last few decades, the mining environment has become safer with fewer injuries and less exposure to the toxins that lead to occupational disease. There have been improvements in working conditions, and a reduction in the number of workers exposed, together with an overall improvement in the health of miners. OBJECTIVES: This study attempted to gain a deeper understanding of the impetus for change to reduce occupational exposures or toxins at the industry level. It focuses on one mining community in Sudbury, Ontario, with a high cancer rate, and its reduction in occupational exposures. It explored the level of awareness of occupational exposures from the perspective of industry and worker representatives in some of the deepest mines in the world. Although awareness may be necessary, it is often not a sufficient impetus for change, and it is this gap between awareness and change that this study explored. It examined the awareness of occupational disease as an impetus to reducing toxic exposures in the mining sector, and explores other forces of change at the industrial and global levels that have led to an impact on occupational exposures in mining. METHODS: From 2014 and 2016, 60 interviews were conducted with individuals who were part of, or witness to the changes in mining in Sudbury. From these, 12 labour and 10 industry interviews and four focus groups were chosen for further analysis to gain a deeper understanding of industry and labour's views on the changes in mining and the impact on miners' health from occupational exposures. The results from this subsection of the data is the focus for this paper. RESULTS: The themes that emerged told a story about Sudbury. There is awareness of occupational exposures, but this awareness is dwarfed in comparison to the attention that is given to the tragic fatal injuries from injuries and accidents. The mines are now owned by foreign multinationals with a change from an engaged, albeit paternalistic sense of responsibility for the health of the miners, to a less responsive or sympathetic workplace culture. Modernization has led to the elimination, substitution, or reduction of some of the worst toxins, and hence present-day miners are less exposed to hazards that lead to occupational disease than they were in the past. However, modernization and the drop in the price of nickel has also led to a precipitous reduction in the number of unionized miners, a decline in union power, a decline in the monitoring of present-day exposures, and an increase in non-unionized contract workers. The impact has been that miners have lost their solidarity and power to investigate, monitor or object to present-day exposures. CONCLUSIONS: Although an increase in the awareness of occupational hazards has made a contribution to the reduction in occupational exposures, the improvement in health of miners may be considered more as a "collateral benefit" of the changes in the mining sector. Multiple forces at the industrial and global level have differentially led to an improvement in the working and living environment. However, with the loss of union power, the miners have lost their major advocate for miner health. PMID- 29036860 TI - Prevalence of work-related musculoskeletal injuries among South Indian hand screen-printing workers. AB - BACKGROUND: Hand screen-printing (HSP) plays a predominant role in textile industries in developing countries. Workers from HSP industry were mostly affected by musculoskeletal injury due to monotonous, and prolonged work nature and poor workplace environment. OBJECTIVE: The present study aims to investigate the prevalence of work-related musculoskeletal disorder (MSD) symptoms and risk factors associated among the HSP industry workers. METHODS: Cochran's sample size for categorical data was used to select 385 HSP workers of 1000 samples from various provinces of Tamil Nadu, INDIA. Modified Nordic based questionnaire was used to assess the musculoskeletal injuries and risk factors among HSP workers. RESULTS: The statistical analysis revealed that 62.5% workers are prone to MSD symptoms with lower back (75.1%), shoulder (66.2%), knees (58.7%), and ankle/feet (55.6%). Age, experience, marital status, stress in the job were the risk factors which significantly (p < 0.05) associated with the reported MSDs. Further, this study result infers that the subjects with higher age and experience are exposed higher levels of MSD prevalence of 85.5% and 92.0% respectively in past 12 months than other groups. Among the different work categories in HSP task, the workers reported with the maximum discomfort during printing work (63.1%) with Odds ratio as 10.38 and 95% CI is 6.18-17.4. than the material handling and drying task. CONCLUSIONS: Study results infer that HSP workers are prone to lower back and shoulder pain followed by knees and ankle feet regions. Socio-demographic factors, awkward posture and repetitive movements contribute to cause MSD among hand screen-printing workers. PMID- 29036858 TI - Musculoskeletal signs in female homecare personnel: A longitudinal epidemiological study. AB - BACKGROUND: In Sweden, homecare services take care of elderly and disabled people, work that often requires heavy lifting and forward bending, resulting in high prevalences of pain and work accidents. OBJECTIVE: Using an eight-year follow-up, this study determines the prognostic importance of certain musculoskeletal signs reported in earlier studies [1, 2] with respect to aspects of pain and perceived disability. METHODS: Baseline data has been reported in earlier studies of 607 women [1-3]. This study uses a postal questionnaire survey and reports the results of eight years post initial study. RESULTS: Segmental pain at L4-L5 and/or L5-S1 levels was associated with higher low back pain intensity and disability at the eight-year follow-up. A decrease in low back pain intensity over eight years was larger for those with segmental pain. The important signs in the longitudinal analyses of pain aspects and disability were lumbar spinal mobility and segmental pain at L4-L5 and L5-S1 levels, but the explained variations were low. CONCLUSION: Evaluation of low lumbar segmental pain provocation and mobility should be considered in routine clinical assessments, as this type of evaluation provides prognostic pain and disability information over time. PMID- 29036861 TI - Task intensity influences upper limb and torso kinematics during two common overhead Functional Capacity Evaluation tasks. AB - BACKGROUND: The Functional Capacity Evaluation (FCE) is a tool used in the return to-work process to guide treatment and decision making. Individual abilities and maximum capacity can be determined through visual observations of changes in mechanics as intensity increases. OBJECTIVE: The purpose of this study was to determine kinematic differences between sexes and intensity levels of two common FCE tasks to establish normative behaviours. METHODS: Upper limb and torso kinematics were collected from 30 participants as they performed the overhead lift and overhead work FCE tasks. Mean, maximum, and minimum values were calculated for clinically relevant joint angles. Mean and maximum segment velocity was also calculated and each variable was tested with a mixed model ANOVA. RESULTS: During the overhead lift task, maximum torso flexion and maximum torso extension increased from the lightest to the heaviest load. Humeral flexion angle at the beginning of the lift and wrist ulnar deviation also increased with load. Torso extension, humeral flexion and axial rotation, and wrist extension all increased with time during the overhead work task. CONCLUSIONS: Increasing intensity during the overhead tasks influenced kinematic variables. These observable changes can be used by evaluators to more reliably determine safe maximum capacities for each patient and identify compensatory actions. PMID- 29036862 TI - Naval Special Warfare (NSW) crewmen demonstrate diminished cervical strength and range of motion compared to NSW students. AB - BACKGROUND: Cumulative effects of high-impact vertical forces, like those experienced on an open-ocean mission, could be an injury concern for the cervical spine. OBJECTIVE: Compare cervical range of motion (ROM) and strength measures between students and NSW Crewmen and secondarily to compare these measures between students and Crewmen separated into three groups based on years of service. METHODS: A volunteer sample of 186 students (age: 22.8+/-3.1 years) and 167 Operators (age: 26.9+/-5.1 years) completed cervical isometric strength (% BW) and ROM ( degrees ) measurements using a handheld dynamometer and CROM-3 device, respectively. Independent samples t-tests were done to evaluate differences between students and Crewmen. Analysis of Variance and appropriate post-hoc tests were calculated to compare students to Crewmen separated into three groups based on years of service. Data is reported as mean+/-SD and (student mean vs. Operator mean). RESULTS: Students demonstrated higher flexion strength (21.7+/-4.9 vs. 19.1+/-5.0) and greater ROM: flexion (54.3+/-10.6 vs. 51.2+/-9.2), and extension (77.0+/-14.4 vs. 71.3+/-11.4) than Crewmen. Students demonstrated greater flexion strength than Crewmen with <=2 (19.4+/-5.1), 3-6 (19.4+/-5.3), and >=7 (18.6+/-4.7) years of service. CONCLUSIONS: Students demonstrated greater cervical strength and ROM. A trend of decreasing ROM/strength in Crewmen with greater years of service was also observed. PMID- 29036863 TI - When helpers need help: A case study on the 2012 earthquakes in Italy. AB - BACKGROUND: After two strong earthquakes in the Emilia region in Italy, many HCWs had to deal with the psychological consequences of the aftershocks. OBJECTIVE: The aims of this case study were a) to describe the psychosocial condition of the HCWs affected by the earthquake; b) to present an intervention immediately after the earthquake on HCWs in a post-disaster situation using a mixed-method approach. METHODS: A mixed-method study was conducted collecting qualitative data (during Group Counselling sessions) and quantitative data (through questionnaires). RESULTS: The results suggested that the impact of the earthquake was very strong, as more than 80% perceived at least a severe impact event capable of altering their ability to function; most of the thoughts and feelings were related to death and fear. CONCLUSIONS: This study adds knowledge about how to plan interventions aiming to help those workers at both individual and organisational level. PMID- 29036864 TI - Employment pathways of individuals with spinal cord injury living in Switzerland: A qualitative study. AB - BACKGROUND: Labour market participation (LMP) represents a key goal of rehabilitation for individuals with spinal cord injury (SCI). To achieve this goal, Swiss SCI rehabilitation centres seek, together with their clients, viable follow-up solutions for returning to work after initial rehabilitation. However, the long-term outcomes of such vocational follow-up solutions have not been investigated so far, and there is a paucity of knowledge regarding the various types of employment pathways that persons with SCI living in Switzerland may experience. OBJECTIVE: To examine long-term employment pathways as experienced by individuals with SCI living in Switzerland. METHODS: A qualitative descriptive study design involving narrative interviews with individuals who completed vocational rehabilitation (VR) during their initial rehabilitation. Interviews were transcribed verbatim, and data analysed using an inductive thematic analysis approach. RESULTS: The analysis of the 15 interviews revealed four employment pathways: the pathway of no paid work, the pathway of retraining, the pathway of job adaptation and the pathway of continuing work. CONCLUSIONS: Apart from three pathways leading towards paid employment, our results revealed one pathway that was characterized by permanent unemployment. Individuals facing a pathway of no paid work may benefit from more custom-made vocational follow-up solutions and prolonged job coaching after initial VR. PMID- 29036865 TI - Differences in low back pain occurrence over a 6-month period between four recovery-stress groups. AB - BACKGROUND: Psychosocial work factors and general recovery experiences are hypothesised to influence the risk of low back pain (LBP) occurrence by influencing the acute recovery-stress state. So far, however, direct links between the acute recovery-stress state and LBP occurrence have not been investigated in detail. OBJECTIVE: The aim of this study was to investigate differences in low back pain occurrence between four distinct recovery-stress groups over a period of 6 month. METHODS: A prospective cohort study with a 3 month and 6-month follow-up measurement was conducted in a sample of administrative employees (N = 271). First, the sample was divided into four distinct recovery-stress groups by cluster analysis. Subsequently, differences in LBP occurrence between these four groups and the Relative Risk (RR) were analysed. RESULTS: Overall, groups with higher stress than recovery scores showed a higher risk of LBP occurrence compared to those groups with lower stress than recovery scores. Furthermore, the group with the highest stress and lowest recovery scores showed a significant higher proportion of LBP occurrence after six months than the group with the lowest stress and highest recovery scores (RR = 7.29). CONCLUSION: The results indicate the relevance of the acute recovery stress state for LBP occurrence. PMID- 29036866 TI - The prevalence of occupational musculoskeletal disorders in Iran: A meta-analysis study. AB - BACKGROUND: Prevention of Work-Related Musculoskeletal Disorders (WRMSDs) is crucial as they jeopardize the well-being of the workforce in workplaces and are prevalent in developed and developing countries. OBJECTIVE: This study aimed to determine the prevalence of WRMSDs among Iranian workers. METHODS: A systematic review and meta-analysis of WRMSDs in Iran was performed by searching relevant keywords in authentic databases and search engines such as SID, Google Scholar, Medlib and PubMed. Twenty-seven published articles in the field of WRMSDs from 2001 to 2010 were searched. Meta-analysis and random effects approach were used to analyze data. Heterogeneity investigation of articles was done using I2 index. RESULTS: The total sample size was 6,090 workers with a mean of 225 samples per study. The upper and lower back had the highest prevalence rate of self-reported WRMSDs with 38.1% (95% CI: 29.9-46.4), and 50% (95% CI: 42.5-57.5), respectively. Also, knee had the highest prevalence among lower extremity disorders with 42.1% prevalence rate (95% CI:35.1-49.1). CONCLUSIONS: A high prevalence of WRMSDs in upper and lower limbs was reported in Iran. Trainings with regard to occupational ergonomics and industrial hygiene programs were recommended for minimizing the work-related risks of musculoskeletal disorders. PMID- 29036868 TI - A modified Job Demand, Control, Support model for active duty police. AB - BACKGROUND: The Job Demand Control Support model (JDCS) is one of the most widely used theoretical models relating job characteristics to health and wellbeing. OBJECTIVE: This study aimed to assess the predictive power of the JDCS model for determining job satisfaction and fatigue in uniformed Swedish police. An additional aim was to determine if predictive power of the model would be improved with the addition of two occupation specific items. METHODS: Questionnaire data, based upon the Swedish Work Environment Survey were collected from Swedish police (n = 4244). A hierarchical multiple regression analysis was run to explore the predictive value of the model and to determine if the additional variables improved predictive power with respect to job satisfaction and fatigue. RESULTS: Regression analysis demonstrated that the JDSC model had high predictive power in relation to job satisfaction and fatigue. Job demands was the strongest predictor of fatigue (14%), while support was the strongest predictor of job satisfaction (12%). The addition of exposure to threats significantly improved predictive power for both job satisfaction and fatigue, while addition of shift work did not significantly affect predictive power of the model. CONCLUSIONS: Workplace interventions to address issues related to job satisfaction and fatigue in police should focus on maintaining a bearable level of job demands and provision of adequate support. PMID- 29036869 TI - The relationship between trait self-control, consideration for future consequence and organizational citizenship behavior among Chinese employees. AB - BACKGROUND: Organizational citizenship behavior (OCB) is important to the development of an organization. Research into factors that foster OCB and the underlying processes are therefore substantially crucial. OBJECTIVE: The current study aimed to test the association between trait self-control and OCB and the mediating role of consideration for future consequence. METHOD: Four hundred and ninety-four Chinese employees (275 men, 219 women) took part in the study. Participants completed a battery of self-report measures online that assessed trait self-control, tendencies of consideration of future consequence, and organizational citizenship behavior. Path analysis was conducted and bootstrapping technique (N = 5000), a resampling method that is asymptotically more accurate than the standard intervals using sample variance and assumptions of normality, was used to judge the significance of the mediation. RESULTS: Results of path analysis showed that trait self-control was positively related to OCB. More importantly, the "trait self-control-OCB" link was mediated by consideration of future consequence-future, but not by consideration of future consequence-immediate. CONCLUSIONS: Employees with high trait self-control engage in more organizational citizenship behavior and this link can be partly explained by consideration of future consequence-future. PMID- 29036870 TI - Development and validation of a new safety climate scale for petrochemical industries. AB - BACKGROUND: While a considerable body of research has studied safety climate and its role as a leading indicator of organizational safety, much of this work has been conducted with Western manufacturing samples. OBJECTIVE: The current study puts emphasis on the cross-validation of a safety climate model in the non Western industrial context of Iranian petrochemical industries. METHODS: The current study was performed in one petrochemical company in Iran. The scale was developed through conducting a literature review followed by a qualitative study with expert participation. After performing a screening process, the initial number of items on the scale was reduced to 68. RESULTS: Ten dimensions (including management commitment, workers' empowerment, communication, blame culture, safety training, job satisfaction, interpersonal relationship, supervision, continuous improvement, and reward system) together with 37 items were extracted from the exploratory factor analysis (EFA) to measure safety climate. Acceptable ranges of internal consistency statistics for the sub-scales were observed. Confirmatory factor analysis (CFA) confirmed the construct validity of the developed safety climate scale for the petrochemical industry workers. The results of reliability showed that the Cronbach's alpha coefficient for the designed scale was 0.94. The ICC was obtained 0.92. CONCLUSION: This study created a valid and reliable scale for measuring safety climate in petrochemical industries. PMID- 29036871 TI - Monitoring of need for recovery and prolonged fatigue within the working population: Evaluation of reliability and agreement over time. AB - BACKGROUND: Need for recovery (NFR) and prolonged fatigue are two important concepts for monitoring short- and long-term outcomes of psychological job demands within employees. For effective monitoring it is, however, important to gain insight in the reproducibility of the instruments that are used. OBJECTIVE: The objective was to assess reproducibility of the NFR scale and Checklist Individual Strength (CIS), measuring NFR and prolonged fatigue respectively, in the working population. METHODS: Longitudinal data from the Maastricht Cohort Study (MCS) study was used, capturing 12,140 employees from 45 different companies at baseline. A 'working' and 'returning to work' sample was conceived for different intervals; 4-month, 1-year, and 2-year. RESULTS: Reliability, assessed with the interclass correlation, was high within employees with a stable work environment for the NFR scale (0.78) and CIS (0.75). The smallest detectable change, assessing the agreement, was 41.20 for the NFR scale and 31.10 for the CIS. CONCLUSIONS: Reliability was satisfactory for both the NFR scale and CIS. The agreement of both scales to detect a changes within employees was, however, less optimal. It is, therefore, suggested that, ideally, both instruments are placed within a broader range of instruments to effectively monitor the outcomes of psychological job demands. PMID- 29036872 TI - Factors influencing the occupational injuries of physical therapists in Taiwan: A hierarchical linear model approach. AB - BACKGROUND: The evidence literature suggests that physical therapy practitioners are subjected to a high probability of acquiring work-related injuries, but only a few studies have specifically investigated Taiwanese physical therapy practitioners. OBJECTIVE: This study was conducted to determine the relationships among individual and group hospital-level factors that contribute to the medical expenses for the occupational injuries of physical therapy practitioners in Taiwan. PARTICIPANTS: Physical therapy practitioners in Taiwan with occupational injuries were selected from the 2013 National Health Insurance Research Databases (NHIRD). METHODS: The age, gender, job title, hospitals attributes, and outpatient data of physical therapy practitioners who sustained an occupational injury in 2013 were obtained with SAS 9.3. SPSS 20.0 and HLM 7.01 were used to conduct descriptive and hierarchical linear model analyses, respectively. RESULTS: The job title of physical therapy practitioners at the individual level and the hospital type at the group level exert positive effects on per person medical expenses. Hospital hierarchy moderates the individual-level relationships of age and job title with the per person medical expenses. CONCLUSION: Considering that age, job title, and hospital hierarchy affect medical expenses for the occupational injuries of physical therapy practitioners, we suggest strengthening related safety education and training and elevating the self awareness of the risk of occupational injuries of physical therapy practitioners to reduce and prevent the occurrence of such injuries. PMID- 29036873 TI - Fighting against a shortage of truck drivers in logistics: Measures that employers can take to promote drivers' work ability and health. AB - BACKGROUND: For several years, the transportation industry has been concerned about a severe shortage of professional truck drivers. Studies investigating the reasons found that poor working conditions and stresses and strains resulting from physiological and psychological job demands have had a negative impact on drivers' health and ability to work. Nevertheless, until now, most employers have refrained from offering measures to support the work ability and well-being of drivers, mainly due to financial pressures in the industry. OBJECTIVE: The present study was aimed at designing adequate and affordable measures to support drivers' health. METHOD: With reference to the Work Ability Index and the house of work ability (Ilmarinen & Tuomi, 2004), 56 truck drivers participated in guided interviews about their working conditions and health-related problems as well as their attitudes, experiences, and desires with respect to being offered supportive measures by their employers. RESULTS: The measures derived are specific and realizable and expected to be widely accepted by professional drivers. They are designed to elicit a positive attitude in the drivers toward exercising and to help them overcome related psychological barriers. CONCLUSION: The implementation of the recommended measures can be expected to support drivers' work ability and help reduce the frictional costs of their employers. PMID- 29036875 TI - Three novel accurate pixel-driven projection methods for 2D CT and 3D EPR imaging. AB - OBJECTIVES: This work aims to explore more accurate pixel-driven projection methods for iterative image reconstructions in order to reduce high-frequency artifacts in the generated projection image. METHODS: Three new pixel-driven projection methods namely, small-pixel-large-detector (SPLD), linear interpolation based (LIB) and distance anterpolation based (DAB), were proposed and applied to reconstruct images. The performance of these methods was evaluated in both two-dimensional (2D) computed tomography (CT) images via the modified FORBILD phantom and three-dimensional (3D) electron paramagnetic resonance (EPR) images via the 6-spheres phantom. Specifically, two evaluations based on projection generation and image reconstruction were performed. For projection generation, evaluation was using a 2D disc phantom, the modified FORBILD phantom and the 6-spheres phantom. For image reconstruction, evaluations were performed using the FORBILD and 6-spheres phantom. During evaluation, 2 quantitative indices of root-mean-square-error (RMSE) and contrast-to-noise-ratio (CNR) were used. RESULTS: Comparing to the use of ordinary pixel-driven projection method, RMSE of the SPLD based least-square algorithm was reduced from 0.0701 to 0.0384 and CNR was increased from 5.6 to 19.47 for 2D FORBILD phantom reconstruction. For 3D EPRI, RMSE of SPLD was also reduced from 0.0594 to 0.0498 and CNR was increased from 3.88 to 11.58. In addition, visual evaluation showed that images reconstructed in both 2D and 3D images suffered from high-frequency line-shape artifacts when using the ordinary pixel-driven projection method. However, using 3 new methods all suppressed the artifacts significantly and yielded more accurate reconstructions. CONCLUSIONS: Three proposed pixel-driven projection methods achieved more accurate iterative image reconstruction results. These new and more accurate methods can also be easily extended to other imaging modalities. Among them, SPLD method should be recommended to 3D and four dimensional (4D) EPR imaging. PMID- 29036874 TI - Development of a device to reduce the risk of injury in handling unstable loads. AB - BACKGROUND: Manual material handling (MMH) task is the most common cause of work related musculoskeletal disorders (MSDs). Operators carrying unstable loads were recently shown to be at greater risk of back injury compared to workers carrying stable loads. OBJECTIVE: This study focused on developing a device to minimize trunk muscle activity and cardiovascular demand while handling a 19-liter bottle. METHOD: After evaluating several designs, one was selected to be developed, manufactured and tested through an experimental study. Healthy participants (n = 42) manually carried a 19-liter bottle. The carrying technique (i.e., carrying a lateral load while holding the load using the dominant hand, pulling the load using the developed device, carrying the load on the back using the developing device) was the independent variable. The muscular activities (e.g., neck extensor, upper trapezius, pectoralis major, deltoid medial, rectus abdominis, and erector spinae muscles of the dominant side), cardiac costs, plantar pressures, walking speeds, and subjective measures were the dependent variables. RESULTS: Results show that carrying the developed device like a backpack significantly reduced trunk muscle activity, cardiovascular demand, and plantar pressure compared to the usual practice. The present results suggest that carrying a 19-liter water bottle using the developed device is likely to contribute to lower MSDs. CONCLUSION: Implementation of the develop device recommended to lessen the risk of injury when handling unstable loads such as liquids. PMID- 29036876 TI - Image artifacts and noise reduction algorithm for cone-beam computed tomography with low-signal projections. AB - This study aims to investigate and test a new image reconstruction algorithm applying to the low-signal projections to generate high quality images by reducing the artifacts and noise in the cone-beam computed tomography (CBCT). For the low-signal and noisy projections, a multiple sampling method is first utilized in projection domain to suppress environmental noise, which guarantees the accuracy of the data for reconstruction, simultaneously. Next, a fuzzy entropy based method with block matching 3D (BM3D) filtering algorithm is employed to improve the image quality to reduce artifacts and noise in image domain. Then, simulation studies on polychromatic spectrum were performed to evaluate the performance of the proposed new algorithm. Study results demonstrated significant improvement in the signal-to-noise ratios (SNRs) and contrast-to-noise ratios (CNRs) of the images reconstructed using the new algorithm. SNRs and CNRs of the new images were averagely 40% and 20% higher than those of the previous images reconstructed using the traditional algorithms, respectively. As a result, since the new image reconstruction algorithm effectively reduced the artifacts and noise, and produced images with better contour and grayscale distribution, it has the potential to improve image quality using the original CBCT data with the low and missing signals. PMID- 29036877 TI - A hybrid CNN feature model for pulmonary nodule malignancy risk differentiation. AB - The malignancy risk differentiation of pulmonary nodule is one of the most challenge tasks of computer-aided diagnosis (CADx). Most recently reported CADx methods or schemes based on texture and shape estimation have shown relatively satisfactory on differentiating the risk level of malignancy among the nodules detected in lung cancer screening. However, the existing CADx schemes tend to detect and analyze characteristics of pulmonary nodules from a statistical perspective according to local features only. Enlightened by the currently prevailing learning ability of convolutional neural network (CNN), which simulates human neural network for target recognition and our previously research on texture features, we present a hybrid model that takes into consideration of both global and local features for pulmonary nodule differentiation using the largest public database founded by the Lung Image Database Consortium and Image Database Resource Initiative (LIDC-IDRI). By comparing three types of CNN models in which two of them were newly proposed by us, we observed that the multi channel CNN model yielded the best discrimination in capacity of differentiating malignancy risk of the nodules based on the projection of distributions of extracted features. Moreover, CADx scheme using the new multi-channel CNN model outperformed our previously developed CADx scheme using the 3D texture feature analysis method, which increased the computed area under a receiver operating characteristic curve (AUC) from 0.9441 to 0.9702. PMID- 29036878 TI - Geometric artifacts reduction for cone-beam CT via L0-norm minimization without dedicated phantoms. AB - For cone-beam computed tomography (CBCT), transversal shifts of the rotation center exist inevitably, which will result in geometric artifacts in CT images. In this work, we propose a novel geometric calibration method for CBCT, which can also be used in micro-CT. The symmetry property of the sinogram is used for the first calibration, and then L0-norm of the gradient image from the reconstructed image is used as the cost function to be minimized for the second calibration. An iterative search method is adopted to pursue the local minimum of the L0-norm minimization problem. The transversal shift value is updated with affirmatory step size within a search range determined by the first calibration. In addition, graphic processing unit (GPU)-based FDK algorithm and acceleration techniques are designed to accelerate the calibration process of the presented new method. In simulation experiments, the mean absolute difference (MAD) and the standard deviation (SD) of the transversal shift value were less than 0.2 pixels between the noise-free and noisy projection images, which indicated highly accurate calibration applying the new calibration method. In real data experiments, the smaller entropies of the corrected images also indicated that higher resolution image was acquired using the corrected projection data and the textures were well protected. Study results also support the feasibility of applying the proposed method to other imaging modalities. PMID- 29036879 TI - Enhancement of digital radiography image quality using a convolutional neural network. AB - Digital radiography system is widely used for noninvasive security check and medical imaging examination. However, the system has a limitation of lower image quality in spatial resolution and signal to noise ratio. In this study, we explored whether the image quality acquired by the digital radiography system can be improved with a modified convolutional neural network to generate high resolution images with reduced noise from the original low-quality images. The experiment evaluated on a test dataset, which contains 5 X-ray images, showed that the proposed method outperformed the traditional methods (i.e., bicubic interpolation and 3D block-matching approach) as measured by peak signal to noise ratio (PSNR) about 1.3 dB while kept highly efficient processing time within one second. Experimental results demonstrated that a residual to residual (RTR) convolutional neural network remarkably improved the image quality of object structural details by increasing the image resolution and reducing image noise. Thus, this study indicated that applying this RTR convolutional neural network system was useful to improve image quality acquired by the digital radiography system. PMID- 29036880 TI - Correction: Zhang, G.; Cheng, G.; Jia, P.; Jiao, S.; Feng, C.; Hu, T.; Liu, H.; Du, Y. The Positive Correlation of the Enhanced Immune Response to PCV2 Subunit Vaccine by Conjugation of Chitosan Oligosaccharide with the Deacetylation Degree. Marine Drugs 2017, 15, 236. AB - The authors wish to correct Figure 1 in this paper [1] to be as follows:[...]. PMID- 29036881 TI - Comparison of In Vitro Assays in Selecting Radiotracers for In Vivo P Glycoprotein PET Imaging. AB - Positron emission tomography (PET) imaging of P-glycoprotein (P-gp) in the blood brain barrier can be important in neurological diseases where P-gp is affected, such as Alzheimer's disease. Radiotracers used in the imaging studies are present at very small, nanomolar, concentration, whereas in vitro assays where these tracers are characterized, are usually performed at micromolar concentration, causing often discrepant in vivo and in vitro data. We had in vivo rodent PET data of [11C]verapamil, (R)-N-[18F]fluoroethylverapamil, (R)-O-[18F]fluoroethyl norverapamil, [18F]MC225 and [18F]MC224 and we included also two new molecules [18F]MC198 and [18F]KE64 in this study. To improve the predictive value of in vitro assays, we labeled all the tracers with tritium and performed bidirectional substrate transport assay in MDCKII-MDR1 cells at three different concentrations (0.01, 1 and 50 uM) and also inhibition assay with P-gp inhibitors. As a comparison, we used non-radioactive molecules in transport assay in Caco-2 cells at a concentration of 10 uM and in calcein-AM inhibition assay in MDCKII-MDR1 cells. All the P-gp substrates were transported dose-dependently. At the highest concentration (50 uM), P-gp was saturated in a similar way as after treatment with P-gp inhibitors. Best in vivo correlation was obtained with the bidirectional transport assay at a concentration of 0.01 uM. One micromolar concentration in a transport assay or calcein-AM assay alone is not sufficient for correct in vivo prediction of substrate P-gp PET ligands. PMID- 29036882 TI - Biomineralization of Fucoidan-Peptide Blends and Their Potential Applications in Bone Tissue Regeneration. AB - Fucoidan (Fuc), a natural polysaccharide derived from brown seaweed algae, and gelatin (Gel) were conjugated to form a template for preparation of biomimetic scaffolds for potential applications in bone tissue regeneration. To the Fuc-Gel we then incorporated the peptide sequence MTNYDEAAMAIASLN (MTN) derived from the E-F hand domain, known for its calcium binding properties. To mimic the components of the extracellular matrix of bone tissue, the Fuc-Gel-MTN assemblies were incubated in simulated body fluid (SBF) to induce biomineralization, resulting in the formation of beta-tricalcium phosphate, and hydroxyapatite (HAp). The formed Fuc-Gel-MTN-beta-TCP/HAP scaffolds were found to display an average Young's Modulus value of 0.32 GPa (n = 5) with an average surface roughness of 91 nm. Rheological studies show that the biomineralized scaffold exhibited higher storage and loss modulus compared to the composites formed before biomineralization. Thermal phase changes were studied through DSC and TGA analysis. XRD and EDS analyses indicated a biphasic mixture of beta-tricalcium phosphate and hydroxyapatite and the composition of the scaffold. The scaffold promoted cell proliferation, differentiation and displayed actin stress fibers indicating the formation of cell-scaffold matrices in the presence of MT3C3-E1 mouse preosteoblasts. Osteogenesis and mineralization were found to increase with Fuc-Gel-MTN-beta-TCP/HAP scaffolds. Thus, we have developed a novel scaffold for possible applications in bone tissue engineering. PMID- 29036883 TI - MicroRNA-34a: A Versatile Regulator of Myriads of Targets in Different Cancers. AB - MicroRNA-34a (miR-34a) is a tumor suppressor that has attracted considerable attention in recent years. It modulates cancer cell invasion, metastasis, and drug resistance, and has also been evaluated as a diagnostic and/or prognostic biomarker. A number of targets of miR-34a have been identified, including some other non-coding RNAs, and it is believed that the modulation of these myriads of targets underlines the versatile role of miR-34a in cancer progression and pathogenesis. Seemingly appealing results from preclinical studies have advocated the testing of miR-34a in clinical trials. However, the results obtained are not very encouraging and there is a need to re-interpret how miR-34a behaves in a context dependent manner in different cancers. In this review, we have attempted to summarize the most recent evidence related to the regulation of different genes and non-coding RNAs by miR-34a and the advances in the field of nanotechnology for the targeted delivery of miR-34a-based therapeutics and mimics. With the emergence of data that contradicts miR-34a's tumor suppressive function, it is important to understand miR-34a's precise functioning, with the aim to establish its role in personalized medicine and to apply this knowledge for the identification of individual patients that are likely to benefit from miR 34a-based therapy. PMID- 29036886 TI - Model-Based Real-Time Non-Rigid Tracking. AB - This paper presents a sequential non-rigid reconstruction method that recovers the 3D shape and the camera pose of a deforming object from a video sequence and a previous shape model of the object. We take PTAM (Parallel Mapping and Tracking), a state-of-the-art sequential real-time SfM (Structure-from-Motion) engine, and we upgrade it to solve non-rigid reconstruction. Our method provides a good trade-off between processing time and reconstruction error without the need for specific processing hardware, such as GPUs. We improve the original PTAM matching by using descriptor-based features, as well as smoothness priors to better constrain the 3D error. This paper works with perspective projection and deals with outliers and missing data. We evaluate the tracking algorithm performance through different tests over several datasets of non-rigid deforming objects. Our method achieves state-of-the-art accuracy and can be used as a real time method suitable for being embedded in portable devices. PMID- 29036885 TI - Fairness and Eligibility to Long-Term Care: An Analysis of the Factors Driving Inequality and Inequity in the Use of Home Care for Older Europeans. AB - In contrast with the case of health care, distributional fairness of long-term care (LTC) services in Europe has received limited attention. Given the increased relevance of LTC in the social policy agenda it is timely to evaluate the evidence on inequality and horizontal inequity by socio-economic status (SES) in the use of LTC and to identify the socio-economic factors that drive them. We address both aspects and reflect on the sensitivity of inequity estimates to adopting different definitions of legitimate drivers of care need. Using Survey of Health, Ageing and Retirement in Europe (SHARE)data collected in 2013, we analyse differences in home care utilization between community-dwelling Europeans in nine countries. We present concentration indexes and horizontal inequity indexes for each country and results from a decomposition analysis across income, care needs, household structures, education achievement and regional characteristics. We find pro-poor inequality in home care utilization but little evidence of inequity when accounting for differential care needs. Household characteristics are an important contributor to inequality, while education and geographic locations hold less explanatory power. We discuss the findings in light of the normative assumptions surrounding different definitions of need in LTC and the possible regressive implications of policies that make household structures an eligibility criterion to access services. PMID- 29036884 TI - Recent Advances in Mycotoxin Determination for Food Monitoring via Microchip. AB - Mycotoxins are one of the main factors impacting food safety. Mycotoxin contamination has threatened the health of humans and animals. Conventional methods for the detection of mycotoxins are gas chromatography (GC) or liquid chromatography (LC) coupled with mass spectrometry (MS), or enzyme-linked immunosorbent assay (ELISA). However, all these methods are time-consuming, require large-scale instruments and skilled technicians, and consume large amounts of hazardous regents and solvents. Interestingly, a microchip requires less sample consumption and short analysis time, and can realize the integration, miniaturization, and high-throughput detection of the samples. Hence, the application of a microchip for the detection of mycotoxins can make up for the deficiency of the conventional detection methods. This review focuses on the application of a microchip to detect mycotoxins in foods. The toxicities of mycotoxins and the materials of the microchip are firstly summarized in turn. Then the application of a microchip that integrates various kinds of detection methods (optical, electrochemical, photo-electrochemical, and label-free detection) to detect mycotoxins is reviewed in detail. Finally, challenges and future research directions in the development of a microchip to detect mycotoxins are previewed. PMID- 29036887 TI - Reference Intervals for Non-Fasting CVD Lipids and Inflammation Markers in Pregnant Indigenous Australian Women. AB - Indigenous Australians experience high rates of cardiovascular disease (CVD). The origins of CVD may commence during pregnancy, yet few serum reference values for CVD biomarkers exist specific to the pregnancy period. The Gomeroi gaaynggal research project is a program that undertakes research and provides some health services to pregnant Indigenous women. Three hundred and ninety-nine non-fasting samples provided by the study participants (206 pregnancies and 175 women) have been used to construct reference intervals for CVD biomarkers during this critical time. A pragmatic design was used, in that women were not excluded for the presence of chronic or acute health states. Percentile bands for non-linear relationships were constructed according to the methods of Wright and Royston (2008), using the xriml package in StataIC 13.1. Serum cholesterol, triglycerides, cystatin-C and alkaline phosphatase increased as gestational age progressed, with little change seen in high-sensitivity C-Reactive Protein and gamma glutamyl transferase. Values provided in the reference intervals are consistent with findings from other research projects. These reference intervals will form a basis with which future CVD biomarkers for pregnant Indigenous Australian women can be compared. PMID- 29036888 TI - A Novel Vaping Machine Dedicated to Fully Controlling the Generation of E Cigarette Emissions. AB - The accurate study of aerosol composition and nicotine release by electronic cigarettes is a major issue. In order to fully and correctly characterize aerosol, emission generation has to be completely mastered. This study describes an original vaping machine named Universal System for Analysis of Vaping (U-SAV), dedicated to vaping product study, enabling the control and real-time monitoring of applied flow rate and power. Repeatability and stability of the machine are demonstrated on flow rate, power regulation and e-liquid consumption. The emission protocol used to characterize the vaping machine is based on the AFNOR XP-D90-300-3 standard (15 W power, 1 Omega atomizer resistance, 100 puffs collected per session, 1.1 L/min airflow rate). Each of the parameters has been verified with two standardized liquids by studying mass variations, power regulation and flow rate stability. U-SAV presents the required and necessary stability for the full control of emission generation. The U-SAV is recognised by the French association for standardization (AFNOR), European Committee for Standardization (CEN) and International Standards Organisation (ISO) as a vaping machine. It can be used to highlight the influence of the e-liquid composition, user behaviour and nature of the device, on the e-liquid consumption and aerosol composition. PMID- 29036891 TI - Total Phenolic and Yellow Pigment Contents and Antioxidant Activities of Durum Wheat Milling Fractions. AB - The aim of this study was to investigate the distribution of total yellow pigments, total phenolic compounds, and their antioxidant activities in various durum wheat milling fractions. Carotenoid composition of yellow pigment extract was also examined using UPLC. The ABTS radical scavenging activity of the milling fractions decreased in the order of short bran/bran > feed flour > flour/semolina in both total phenolic and total yellow pigment extracts. Yellow pigments extracts from bran, short bran, and feed flour exhibited 5.6-15.4% higher antioxidant activity than those of total phenolic extracts from the corresponding milling fractions. The UPLC results showed a non-carotenoid peak at Rt 0.47 min which was present in fractions of the grain outer layers but absent in semolina and flour. This peak absorbed in the UV range of 271 to 327 nm. These observations suggest that the unknown peak could be composed of phenolic compounds co-extracted in their free form with carotenoids in the polar water saturated butanol solvent. The compounds in this peak could result in overestimation of carotenoid content and antioxidant activity in bran, short bran and feed flour as the peak contributed to 18.3-26.0% of total carotenoids if it was taken into account. PMID- 29036889 TI - Single Administration of Melatonin Modulates the Nitroxidergic System at the Peripheral Level and Reduces Thermal Nociceptive Hypersensitivity in Neuropathic Rats. AB - Neuropathic pain is a severe condition with unsatisfactory treatments. Melatonin, an indolamine, seems to be a promising molecule suitable for this purpose due to its well-known anti-inflammatory, analgesic, and antioxidant effects, as well as its modulation of the nitroxidergic system. Nevertheless, the data on its mechanism of action and potentialities are currently insufficient in this pathology, especially at the peripheral level. Thus, this work evaluated the effect of a single administration of melatonin in an established mononeuropathy pain model that monitors the behaviour and the changes in the nitroxidergic system in dorsal root ganglia and skin, which are affected by nervous impairment. Experiments were carried out on Sprague Dawley rats subdivided into the sham operated (control) and the chronic constriction injured animals, a model of peripheral neuropathic pain on sciatic nerve. Single administrations of melatonin (5-10 mg/kg) or vehicle were injected intraperitoneally on the 14th day after surgery, when the mononeuropathy was established. The animals were behaviourally tested for thermal hyperalgesia. The dorsal root ganglia and the plantar skin of the hind-paws were removed and processed for the immunohistochemical detection of neuronal and inducible nitric oxide synthases. The behavioural results showed an increase of withdrawal latency during the plantar test as early as 30 min after melatonin administration. The immunohistochemical results indicated a modulation of the nitroxidergic system both at dorsal root ganglia and skin level, permitting speculate on a possible mechanism of action. We showed that melatonin may be a possible therapeutic strategy in neuropathic pain. PMID- 29036892 TI - Adaptive Enhancement of X-Band Marine Radar Imagery to Detect Oil Spill Segments. AB - Oil spills generate a large cost in environmental and economic terms. Their identification plays an important role in oil-spill response. We propose an oil spill detection method with improved adaptive enhancement on X-band marine radar systems. The radar images used in this paper were acquired on 21 July 2010, from the teaching-training ship "YUKUN" of the Dalian Maritime University. According to the shape characteristic of co-channel interference, two convolutional filters are used to detect the location of the interference, followed by a mean filter to erase the interference. Small objects, such as bright speckles, are taken as a mask in the radar image and improved by the Fields-of-Experts model. The region marked by strong reflected signals from the sea's surface is selected to identify oil spills. The selected region is subject to improved adaptive enhancement designed based on features of radar images. With the proposed adaptive enhancement technique, calculated oil spill detection is comparable to visual interpretation in accuracy. PMID- 29036890 TI - Recent Advances in SELEX Technology and Aptamer Applications in Biomedicine. AB - Aptamers are short DNA/RNA oligonucleotides capable of binding to target molecules with high affinity and specificity. The process of selecting an aptamer is called Systematic Evolution of Ligands by Exponential Enrichment (SELEX). Thanks to the inherit merits, aptamers have been used in a wide range of applications, including disease diagnosis, targeted delivery agents and therapeutic uses. To date, great achievements regarding the selection, modifications and application of aptamers have been made. However, few aptamer based products have already successfully entered into clinical and industrial use. Besides, it is still a challenge to obtain aptamers with high affinity in a more efficient way. Thus, it is important to comprehensively review the current shortage and achievement of aptamer-related technology. In this review, we first present the limitations and notable advances of aptamer selection. Then, we compare the different methods used in the kinetic characterization of aptamers. We also discuss the impetus and developments of the clinical application of aptamers. PMID- 29036893 TI - Development and Validation of a Food Frequency Questionnaire to Estimate Intake among Children and Adolescents in Urban Peru. AB - Tools to assess intake among children in Latin America are limited. We developed and assessed the reproducibility and validity of a semi-quantitative food frequency questionnaire (FFQ) administered to children, adolescents, and their caregivers in Lima, Peru. We conducted 24-h diet recalls (DRs) and focus groups to develop a locally-tailored FFQ prototype for children aged 0-14 years. To validate the FFQ, we administered two FFQs and three DRs to children and/or their caregivers (N = 120) over six months. We examined FFQ reproducibility by quartile agreement and Pearson correlation coefficients, and validity by quartile agreement and correlation with DRs. For reproducibility, quartile agreement ranged from 60-77% with correlations highest for vitamins A and C (0.31). Age adjusted correlations for the mean DR and the second-administered FFQ were highest in the 0-7 age group, in which the majority of caregivers completed the FFQ on behalf of the child (total fat; 0.67) and in the 8-14 age group, in which both the child and caregiver completed the FFQ together (calcium, niacin; 0.54); correlations were <0.10 for most nutrients in the 8-14 age group in which the caregiver completed the FFQ on the child's behalf. The FFQ was reproducible and the first developed and validated to assess various nutrients in children and adolescents in Peru. PMID- 29036894 TI - How Can Data Drive Policy and Practice in Child Welfare? Making the Link in Canada. AB - Formal university-child welfare partnerships offer a unique opportunity to begin to fill the gaps in the child welfare knowledge base and link child welfare services to the realities of practice. With resources from a knowledge mobilization grant, a formal partnership was developed between the University of Toronto, clinicians, policy analysts, and researchers from child welfare agencies across Ontario. The key objectives of the grant included: (1) enhancing the capacity of service providers to access and analyze child welfare data to inform service and policy decisions; (2) integrating clinical expertise in service and policy decisions; and (3) developing a joint research agenda addressing high priority knowledge gaps. This partnership was an opportunity to advance the evidence base with respect to service provision in Ontario and to create a culture of knowledge and evidence that would eventually support more complex research initiatives. Administrative data was analyzed for this partnership through the Ontario Child Abuse and Neglect Data System (OCANDS)-the first child welfare data system in Ontario to track child welfare-involved children and their families. Child welfare agencies identified recurrence as an important priority and agency-driven analyses were subsequently conducted on OCANDS generated recurrence Service Performance Indicators (SPI's). Using an urgent versus chronic investigative taxonomy for analyses, findings revealed that the majority of cases did not recur within 12 months and cases identified as chronic needs are more likely to return to the attention of child welfare authorities. One of the key outcomes of the partnership - helping agencies to understand their administrative data is described, as are considerations for next steps for future partnerships and research. PMID- 29036895 TI - Low Cost Lab on Chip for the Colorimetric Detection of Nitrate in Mineral Water Products. AB - The diagnostics of health status and the quality of drinking water are among the most important United Nations sustainable development goals. However, in certain areas, wars and instability have left millions of people setting in refugee camps and dangerous regions where infrastructures are lacking and rapid diagnostics of water quality and medical status are critical. In this work, microfluidic testing chips and photometric setups are developed in cheap and portable way to detect nitrate concentrations in water. The performed test is designed to work according to the Griess procedure. Moreover, to make it simple and usable in areas of low resource settings, commercially available Arduino mega and liquid crystal display (LCD) shield are utilized to process and display results, respectively. For evaluation purposes, different local products of tap water, bottled drinking water, and home-filter treated water samples were tested using the developed setup. A calibration curve with coefficient of determination (R2) of 0.98 was obtained when absorbance of the prepared standard solutions was measured as a function of the concentrations. In conclusion, this is the first step towards a compact, portable, and reliable system for nitrate detection in water for point of-care applications. PMID- 29036896 TI - Remote Sensing-Based Quantification of the Impact of Flash Flooding on the Rice Production: A Case Study over Northeastern Bangladesh. AB - The northeastern region of Bangladesh often experiences flash flooding during the pre-harvesting period of the boro rice crop, which is the major cereal crop in the country. In this study, our objective was to delineate the impact of the 2017 flash flood (that initiated on 27 March 2017) on boro rice using multi-temporal Landsat-8 OLI and MODIS data. Initially, we opted to use Landsat-8 OLI data for mapping the damages; however, during and after the flooding event the acquisition of cloud free images were challenging. Thus, we used this data to map the cultivated boro rice acreage considering the planting to mature stages of the crop. Also, in order to map the extent of the damaged boro area, we utilized MODIS data as their 16-day composites provided cloud free information. Our results indicated that both the cultivated and damaged boro area estimates based on satellite data had strong relationships while compared to the ground-based estimates (i.e., r2 values approximately 0.92 for both cases, and RMSE of 18,374 and 9380 ha for cultivated and damaged areas, respectively). Finally, we believe that our study would be critical for planning and ensuring food security for the country. PMID- 29036898 TI - Highly Sensitive and Selective Hydrogen Gas Sensor Using the Mesoporous SnO2 Modified Layers. AB - It is important to improve the sensitivities and selectivities of metal oxide semiconductor (MOS) gas sensors when they are used to monitor the state of hydrogen in aerospace industry and electronic field. In this paper, the ordered mesoporous SnO2 (m-SnO2) powders were prepared by sol-gel method, and the morphology and structure were characterized by X-ray diffraction analysis (XRD), transmission electron microscope (TEM) and Brunauer-Emmett-Teller (BET). The gas sensors were fabricated using m-SnO2 as the modified layers on the surface of commercial SnO2 (c-SnO2) by screen printing technology, and tested for gas sensing towards ethanol, benzene and hydrogen with operating temperatures ranging from 200 degrees C to 400 degrees C. Higher sensitivity was achieved by using the modified m-SnO2 layers on the c-SnO2 gas sensor, and it was found that the S(c/m2) sensor exhibited the highest response (Ra/Rg = 22.2) to 1000 ppm hydrogen at 400 degrees C. In this paper, the mechanism of the sensitivity and selectivity improvement of the gas sensors is also discussed. PMID- 29036897 TI - Inhibition of Starvation-Triggered Endoplasmic Reticulum Stress, Autophagy, and Apoptosis in ARPE-19 Cells by Taurine through Modulating the Expression of Calpain-1 and Calpain-2. AB - Age-related macular degeneration (AMD) is a complex disease with multiple initiators and pathways that converge on death for retinal pigment epithelial (RPE) cells. In this study, effects of taurine on calpains, autophagy, endoplasmic reticulum (ER) stress, and apoptosis in ARPE-19 cells (a human RPE cell line) were investigated. We first confirmed that autophagy, ER stress and apoptosis in ARPE-19 cells were induced by Earle's balanced salt solution (EBSS) through starvation to induce RPE metabolic stress. Secondly, inhibition of ER stress by 4-phenyl butyric acid (4-PBA) alleviated autophagy and apoptosis, and suppression of autophagy by 3-methyl adenine (3-MA) reduced the cell apoptosis, but the ER stress was minimally affected. Thirdly, the apoptosis, ER stress and autophagy were inhibited by gene silencing of calpain-2 and overexpression of calpain-1, respectively. Finally, taurine suppressed both the changes of the important upstream regulators (calpain-1 and calpain-2) and the activation of ER stress, autophagy and apoptosis, and taurine had protective effects on the survival of ARPE-19 cells. Collectively, this data indicate that taurine inhibits starvation-triggered endoplasmic reticulum stress, autophagy, and apoptosis in ARPE-19 cells by modulating the expression of calpain-1 and calpain-2. PMID- 29036900 TI - Toward a Robust Security Paradigm for Bluetooth Low Energy-Based Smart Objects in the Internet-of-Things. AB - Bluetooth Low Energy (BLE) has emerged as one of the most promising technologies to enable the Internet-of-Things (IoT) paradigm. In BLE-based IoT applications, e.g., wearables-oriented service applications, the Bluetooth MAC addresses of devices will be swapped for device pairings. The random address technique is adopted to prevent malicious users from tracking the victim's devices with stationary Bluetooth MAC addresses and accordingly the device privacy can be preserved. However, there exists a tradeoff between privacy and security in the random address technique. That is, when device pairing is launched and one device cannot actually identify another one with addresses, it provides an opportunity for malicious users to break the system security via impersonation attacks. Hence, using random addresses may lead to higher security risks. In this study, we point out the potential risk of using random address technique and then present critical security requirements for BLE-based IoT applications. To fulfill the claimed requirements, we present a privacy-aware mechanism, which is based on elliptic curve cryptography, for secure communication and access-control among BLE-based IoT objects. Moreover, to ensure the security of smartphone application associated with BLE-based IoT objects, we construct a Smart Contract-based Investigation Report Management framework (SCIRM) which enables smartphone application users to obtain security inspection reports of BLE-based applications of interest with smart contracts. PMID- 29036901 TI - Importance of Leadership Style towards Quality of Care Measures in Healthcare Settings: A Systematic Review. AB - Effective leadership of healthcare professionals is critical for strengthening quality and integration of care. This study aimed to assess whether there exist an association between different leadership styles and healthcare quality measures. The search was performed in the Medline (National Library of Medicine, PubMed interface) and EMBASE databases for the time period 2004-2015. The research question that guided this review was posed as: "Is there any relationship between leadership style in healthcare settings and quality of care?" Eighteen articles were found relevant to our research question. Leadership styles were found to be strongly correlated with quality care and associated measures. Leadership was considered a core element for a well-coordinated and integrated provision of care, both from the patients and healthcare professionals. PMID- 29036899 TI - Targeting Strategies for the Combination Treatment of Cancer Using Drug Delivery Systems. AB - Cancer cells have characteristics of acquired and intrinsic resistances to chemotherapy treatment-due to the hostile tumor microenvironment-that create a significant challenge for effective therapeutic regimens. Multidrug resistance, collateral toxicity to normal cells, and detrimental systemic side effects present significant obstacles, necessitating alternative and safer treatment strategies. Traditional administration of chemotherapeutics has demonstrated minimal success due to the non-specificity of action, uptake and rapid clearance by the immune system, and subsequent metabolic alteration and poor tumor penetration. Nanomedicine can provide a more effective approach to targeting cancer by focusing on the vascular, tissue, and cellular characteristics that are unique to solid tumors. Targeted methods of treatment using nanoparticles can decrease the likelihood of resistant clonal populations of cancerous cells. Dual encapsulation of chemotherapeutic drug allows simultaneous targeting of more than one characteristic of the tumor. Several first-generation, non-targeted nanomedicines have received clinical approval starting with Doxil(r) in 1995. However, more than two decades later, second-generation or targeted nanomedicines have yet to be approved for treatment despite promising results in pre-clinical studies. This review highlights recent studies using targeted nanoparticles for cancer treatment focusing on approaches that target either the tumor vasculature (referred to as 'vascular targeting'), the tumor microenvironment ('tissue targeting') or the individual cancer cells ('cellular targeting'). Recent studies combining these different targeting methods are also discussed in this review. Finally, this review summarizes some of the reasons for the lack of clinical success in the field of targeted nanomedicines. PMID- 29036902 TI - DNA Adducts Formed by Aristolochic Acid Are Unique Biomarkers of Exposure and Explain the Initiation Phase of Upper Urothelial Cancer. AB - Aristolochic acid (AA) is a plant alkaloid that causes aristolochic acid nephropathy (AAN) and Balkan endemic nephropathy (BEN), unique renal diseases frequently associated with upper urothelial cancer (UUC). This review summarizes the significance of AA-derived DNA adducts in the aetiology of UUC leading to specific A:T to T:A transversion mutations (mutational signature) in AAN/BEN associated tumours, which are otherwise rare in individuals with UCC not exposed to AA. Therefore, such DNA damage produced by AA-DNA adducts is one rare example of the direct association of exposure and cancer development (UUC) in humans, confirming that the covalent binding of carcinogens to DNA is causally related to tumourigenesis. Although aristolochic acid I (AAI), the major component of the natural plant extract AA, might directly cause interstitial nephropathy, enzymatic activation of AAI to reactive intermediates capable of binding to DNA is a necessary step leading to the formation of AA-DNA adducts and subsequently AA-induced malignant transformation. Therefore, AA-DNA adducts can not only be utilized as biomarkers for the assessment of AA exposure and markers of AA induced UUC, but also be used for the mechanistic evaluation of its enzymatic activation and detoxification. Differences in AA metabolism might be one of the reasons for an individual's susceptibility in the multi-step process of AA carcinogenesis and studying associations between activities and/or polymorphisms of the enzymes metabolising AA is an important determinant to identify individuals having a high risk of developing AA-mediated UUC. PMID- 29036905 TI - Extrinsic Calibration of Camera and 2D Laser Sensors without Overlap. AB - Extrinsic calibration of a camera and a 2D laser range finder (lidar) sensors is crucial in sensor data fusion applications; for example SLAM algorithms used in mobile robot platforms. The fundamental challenge of extrinsic calibration is when the camera-lidar sensors do not overlap or share the same field of view. In this paper we propose a novel and flexible approach for the extrinsic calibration of a camera-lidar system without overlap, which can be used for robotic platform self-calibration. The approach is based on the robot-world hand-eye calibration (RWHE) problem; proven to have efficient and accurate solutions. First, the system was mapped to the RWHE calibration problem modeled as the linear relationship AX = ZB , where X and Z are unknown calibration matrices. Then, we computed the transformation matrix B , which was the main challenge in the above mapping. The computation is based on reasonable assumptions about geometric structure in the calibration environment. The reliability and accuracy of the proposed approach is compared to a state-of-the-art method in extrinsic 2D lidar to camera calibration. Experimental results from real datasets indicate that the proposed approach provides better results with an L2 norm translational and rotational deviations of 314 mm and 0 . 12 ? respectively. PMID- 29036903 TI - Resveratrol and Amyloid-Beta: Mechanistic Insights. AB - The amyloid-beta (Abeta) hypothesis that dyshomeostasis between Abeta production and clearance is a very early, key molecular factor in the etiology of Alzheimer's disease (AD) has been proposed and examined in the AD research field. Scientists have focused on seeking natural products or drugs to influence the dynamic equilibrium of Abeta, targeting production and clearance of Abeta. There is emerging evidence that resveratrol (Res), a naturally occurring polyphenol mainly found in grapes and red wine, acts on AD in numerous in vivo and in vitro models. Res decreases the amyloidogenic cleavage of the amyloid precursor protein (APP), enhances clearance of amyloid beta-peptides, and reduces Abeta aggregation. Moreover, Res also protects neuronal functions through its antioxidant properties. This review discusses the action of Res on Abeta production, clearance and aggregation and multiple potential mechanisms, providing evidence of the useful of Res for AD treatment. PMID- 29036904 TI - Biopsychosocial Measures Related to Chronic Low Back Pain Postural Control in Older Adults. AB - This study examined the biopsychosocial measures related to postural control in the growing population of older adults (i.e., 60 years and older). The sample of the study consisted of 129 older adults (M = 74.45, SD = 6.95), with 34 males and 95 females; 36 were classified with chronic low-back pain (CLBP), and 93 without chronic low-back pain (NCLBP). Physical and psychosocial constructs were analyzed as predictors for postural control measures. Additionally, gender and classification of low-back pain were examined as moderators for all physical and psychosocial measures. Results demonstrated that physical and psychosocial measures were able to significantly predict composite, visual, and vestibular balance measures, but not somatosensory or preference balance measures. The chair stand test, modified sit-and-reach test, sleep disturbance, and balance efficacy were all identified as individually significant predictors. Gender and CLBP did not moderate the utility of any predictor variables. Results of the current study re-confirm the importance of utilizing the biopsychosocial approach for future research examining postural control in older adults. PMID- 29036906 TI - From 2-Alkylsulfanylimidazoles to 2-Alkylimidazoles: An Approach towards Metabolically More Stable p38alpha MAP Kinase Inhibitors. AB - In vitro and in vivo metabolism studies revealed that 2-alkylsulfanylimidazole ML3403 (4-(5-(4-fluorophenyl)-2-(methylthio)-1H-imidazol-4-yl)-N-(1 phenylethyl)pyridin-2-amine) undergoes rapid oxidation to the sulfoxide. Replacing the sulfur atom present in the two potent p38alpha mitogen-activated protein (MAP) kinase inhibitors ML3403 and LN950 (2-((5-(4-fluorophenyl)-4-(2-((3 methylbutan-2-yl)amino)pyridin-4-yl)-1H-imidazol-2-yl)thio)ethan-1-ol) by a methylene group resulted in 2-alkylimidazole derivatives 1 and 2, respectively, having a remarkably improved metabolic stability. The 2-alkylimidazole analogs 1 and 2 showed 20% and 10% biotransformation after 4 h of incubation with human liver microsomes, respectively. They display a 4-fold increased binding affinity towards the target kinase as well as similar in vitro potency and ex vivo efficacy relative to their 2-alkylsulfanylimidazole counterparts ML3403 and LN950. For example, 2-alkylimidazole 2, the analog of LN950, inhibits both the p38alpha MAP kinase as well as the LPS-stimulated tumor necrosis factor-alpha release from human whole blood in the low double-digit nanomolar range. PMID- 29036908 TI - Propofol Induces Apoptosis of Neurons but Not Astrocytes, Oligodendrocytes, or Neural Stem Cells in the Neonatal Mouse Hippocampus. AB - It has been shown that propofol can induce widespread apoptosis in neonatal mouse brains followed by long-term cognitive dysfunction. However, selective brain area and cell vulnerability to propofol remains unknown. This study was aimed to dissect toxic effect of propofol on multiple brain cells, including neurons, astrocytes, oligodendrocytes, and neural stem cells (NSCs). Seven-day-old mice were intraperitoneally administrated propofol or intralipid as a vehicle control for 6 hours. To identify vulnerable cells undergoing apoptosis following propofol exposure, brain sagittal sections were co-stained with antibodies against an apoptosis marker along with neuron, astrocyte, oligodendrocyte, or NSC markers using immunofluorescence staining. The results showed widespread apoptosis in propofol-treated brains (apoptotic cells: 1.55 +/- 0.04% and 0.06 +/- 0.01% in propofol group and intralipid-treated control group, respectively). Apoptotic cell distribution exhibits region- and cell-specific patterns. Several brain regions (e.g., cerebral cortex and hippocampus) were more vulnerable to propofol than other brain regions. Most apoptotic cells in the hippocampus were located in the cornus ammonis 1 (CA1) subfield. These apoptotic cells were only detected in neurons and not astrocytes, oligodendrocytes, or NSCs. These data demonstrate that different brain regions, subfields, and different types of neuronal cells in mice exhibit various vulnerabilities to propofol. Understanding region- and cell specific susceptibility to propofol will help to better understand cellular contribution to developmental neurotoxicity and further develop novel therapeutic targets. PMID- 29036911 TI - Comparison of Heavy-Duty Scuffing Behavior between Chromium-Based Ceramic Composite and Nickel-Chromium-Molybdenum-Coated Ring Sliding against Cast Iron Liner under Starvation. AB - A running-in and starved lubrication experiment is designed to investigate the heavy-duty scuffing behavior of piston ring coatings against cast iron (Fe) cylinder liner using the piston ring reciprocating liner test rig. The scuffing resistance of the piston ring with the chromium-based ceramic composite coating (CKS), and that with the thermally sprayed nickel-chromium-molybdenum coating (NCM) is compared at different nominal pressures (40~100 MPa) and temperatures (180~250 degrees C). With the failure time as a criterion, the rank order is as follows: NCM/Fe > CKS/Fe. Before the scoring occurs at the interface of the piston ring and cylinder liner (PRCL), the cast iron liner enters into a "polish wear" stage, and iron-based adhesive materials begin to form on the piston ring surface. With the macroscopic adhesion formation, the plastic shearing cycle causes surface damages mainly due to abrasive effects for the CKS/Fe pairs and adhesive effects for the NCM/Fe pairs. PMID- 29036910 TI - Melatonin Treatment Reduces Oxidative Damage and Normalizes Plasma Pro Inflammatory Cytokines in Patients Suffering from Charcot-Marie-Tooth Neuropathy: A Pilot Study in Three Children. AB - Charcot-Marie-Tooth neuropathy (CMT) is a motor and sensory neuropathy comprising a heterogeneous group of inherited diseases. The CMT1A phenotype is predominant in the 70% of CMT patients, with nerve conduction velocity reduction and hypertrophic demyelination. These patients have elevated oxidative stress and chronic inflammation. Currently, there is no effective cure for CMT; herein, we investigated whether melatonin treatment may reduce the inflammatory and oxidative damage in CMT1A patients. Three patients, aged 8-10 years, were treated with melatonin (60 mg at 21:00 h plus 10 mg at 09:00 h), and plasma levels of lipid peroxidation (LPO), nitrites (NOx), IL-1beta, IL-2, IL-6, TNF-alpha, INF gamma, oxidized to reduced glutathione (GSSG/GSH) ratio, and the activities of superoxide dismutase (SOD), glutathione-S transferase (GST), glutathione peroxidase (GPx), and reductase (GRd), were determined in erythrocytes at 3 and 6 months of treatment. Healthy age- and sex-matched subjects were used as controls. The results showed increased activities of SOD, GST, GPx, and GRd in CMT1A patients, which were reduced at 3 and 6 months of treatment. The GSSG/GSH ratio significantly increased in the patients, returning to control values after melatonin treatment. The inflammatory process was confirmed by the elevation of all proinflammatory cytokines measured, which were also normalized by melatonin. LPO and NOx, which also were elevated in the patients, were normalized by melatonin. The results document beneficial effects of the use of melatonin in CMT1A patients to reduce the hyperoxidative and inflammatory condition, which may correlate with a reduction of the degenerative process. PMID- 29036912 TI - Caustic Ingestion in the Elderly: Influence of Age on Clinical Outcome. AB - Caustic poisonings are still associated with many fatalities. Studies focusing on the elderly are rare. The purpose of the present study was to compare the clinical outcomes of caustic ingestion injury in elderly and non-elderly adults with regard to gender, intent of exposure, substance ingested, severity of mucosal injury, complications, and mortality. Caustic substance exposures reported to the National Toxicological Information Centre in Slovakia during 1998 2015 were reviewed retrospectively. The patients were divided into two groups: the non-elderly (<60 years) and elderly adults (>=60 years). The mortality rate in the elderly was significantly higher (elderly 23.0% vs. non-elderly 11.3%; p = 0.041). The risk of fatal outcome in the elderly was increased by acid ingestion (OR = 7.822; p = 0.002), particularly hydrochloric acid (OR = 5.714, p = 0.006). The incidence of respiratory complications was almost two times higher in the elderly was 31.1% vs. 17.4% for the non-elderly (p = 0.037). Respiratory complications significantly correlated with an increased mortality rate (p = 0.001) in the elderly whereas there was no association between GI complications and mortality in the elderly (p = 0.480). Elderly patients with respiratory complications had the poorest clinical outcomes. The highest risk of complications and fatalities was observed in patients after hydrochloric acid ingestion. PMID- 29036909 TI - Diabetes-Induced Dysfunction of Mitochondria and Stem Cells in Skeletal Muscle and the Nervous System. AB - Diabetes mellitus is one of the most common metabolic diseases spread all over the world, which results in hyperglycemia caused by the breakdown of insulin secretion or insulin action or both. Diabetes has been reported to disrupt the functions and dynamics of mitochondria, which play a fundamental role in regulating metabolic pathways and are crucial to maintain appropriate energy balance. Similar to mitochondria, the functions and the abilities of stem cells are attenuated under diabetic condition in several tissues. In recent years, several studies have suggested that the regulation of mitochondria functions and dynamics is critical for the precise differentiation of stem cells. Importantly, physical exercise is very useful for preventing the diabetic alteration by improving the functions of both mitochondria and stem cells. In the present review, we provide an overview of the diabetic alterations of mitochondria and stem cells and the preventive effects of physical exercise on diabetes, focused on skeletal muscle and the nervous system. We propose physical exercise as a countermeasure for the dysfunction of mitochondria and stem cells in several target tissues under diabetes complication and to improve the physiological function of patients with diabetes, resulting in their quality of life being maintained. PMID- 29036907 TI - A Functional Interplay between IGF-1 and Adiponectin. AB - A functional relationship is suggested between two well-known protein hormones, insulin-like growth factor 1 (IGF-1) and adiponectin. In the last two decades in fact, different experimental evidence has indicated a non-random link between them. Here, we describe briefly the IGF-1 and adiponectin systems, and we then focus on their putative interplay in relation to several pathological conditions, including obesity, diabetes, insulin resistance, cardiovascular disease, and cancer. Although the existing studies are hardly comparable, they definitely indicate a functional connection between these two protein hormones. In conclusion, the current knowledge strongly encourages further research into the common, as well as novel, mechanisms through which IGF-1 and adiponectin exert their concerted action. PMID- 29036913 TI - Alpha-Galacto-Oligosaccharides at Low Dose Improve Liver Steatosis in a High-Fat Diet Mouse Model. AB - Non-Alcoholic Fatty Liver Disease (NAFLD) is the major liver disease worldwide and is linked to the development of metabolic syndrome and obesity. As alpha galacto-oligosaccharides (alpha-GOS) from legumes have been shown to reduce body weight and hyperphagia in overweight adults, it was hypothesized that they would exert benefits on the development of metabolic syndrome and associated NAFLD in a rodent model. C57Bl/6J mice were fed a high-fat diet until they developed metabolic syndrome and were then orally treated either with alpha-GOS at a physiological dose (2.2 g/kg BW/d) or the vehicle over 7 weeks. alpha-GOS induced a reduction in food intake, but without affecting body weight during the first week of treatment, when compared to the vehicle. Fasting glycaemia was improved after 4 weeks of treatment with alpha-GOS, whereas insulin sensitivity (assessed with HOMA-IR) was unaffected at the end of the experiment. Plasma non-esterified fatty acids, low-density lipoprotein (LDL) and total cholesterol were lowered by alpha-GOS while high-density lipoprotein (HDL) and triglycerides levels remained unaffected. alpha-GOS markedly improved liver steatosis as well as free fatty acid and triglyceride accumulation in the liver. alpha-GOS improved plasma lipids and prevented NAFLD development through mechanisms which are independent of body weight management and glycemic control. PMID- 29036914 TI - Molecular Characterization and Functional Analysis of a Ferritin Heavy Chain Subunit from the Eri-Silkworm, Samia cynthia ricini. AB - Ferritins are conserved iron-binding proteins that are primarily involved in iron storage, detoxification and the immune response. Despite the importance of ferritin in organisms, little is known about their roles in the eri-silkworm (Samia cynthia ricini). We previously identified a ferritin heavy chain subunit named ScFerHCH in the S. c. ricini transcriptome database. The full-length S. c. ricini ferritin heavy chain subunit (ScFerHCH) was 1863 bp and encoded a protein of 231 amino acids with a deduced molecular weight of 25.89 kDa. Phylogenetic analysis revealed that ScFerHCH shared a high amino acid identity with the Bombyx mori and Danaus plexippus heavy chain subunits. Higher ScFerHCH expression levels were found in the silk gland, fat body and midgut of S. c. ricini by reverse transcription quantitative polymerase chain reaction (RT-qPCR) and Western blotting. Injection of Staphylococcus aureus and Pseudomonas aeruginosa was associated with an upregulation of ScFerHCH in the midgut, fat body and hemolymph, indicating that ScFerHCH may contribute to the host's defense against invading pathogens. In addition, the anti-oxidation activity and iron-binding capacity of recombinant ScFerHCH protein were examined. Taken together, our results suggest that the ferritin heavy chain subunit from eri-silkworm may play critical roles not only in innate immune defense, but also in organismic iron homeostasis. PMID- 29036917 TI - The Effect of TiO2 Doped Photocatalytic Nano-Additives on the Hydration and Microstructure of Portland and High Alumina Cements. AB - Mortars with two different binders (Portland cement (PC) and high alumina cement (HAC)) were modified upon the bulk incorporation of nano-structured photocatalytic additives (bare TiO2, and TiO2 doped with either iron (Fe-TiO2) or vanadium (V-TiO2)). Plastic and hardened state properties of these mortars were assessed in order to study the influence of these nano-additives. Water demand was increased, slightly by bare TiO2 and Fe-TiO2, and strongly by V-TiO2, in agreement with the reduction of the particle size and the tendency to agglomerate. Isothermal calorimetry showed that hydration of the cementitious matrices was accelerated due to additional nucleation sites offered by the nano additives. TiO2 and doped TiO2 did not show pozzolanic reactivity in the binding systems. Changes in the pore size distribution, mainly the filler effect of the nano-additives, accounted for the increase in compressive strengths measured for HAC mortars. A complex microstructure was seen in calcium aluminate cement mortars, strongly dependent on the curing conditions. Fe-TiO2 was found to be homogeneously distributed whereas the tendency of V-TiO2 to agglomerate was evidenced by elemental distribution maps. Water absorption capacity was not affected by the nano-additive incorporation in HAC mortars, which is a favourable feature for the application of these mortars. PMID- 29036915 TI - STAT3 but Not HIF-1alpha Is Important in Mediating Hypoxia-Induced Chemoresistance in MDA-MB-231, a Triple Negative Breast Cancer Cell Line. AB - Hypoxia-induced chemoresistance (HICR) is a well-recognized phenomenon, and in many experimental models, hypoxia inducible factor-1alpha (HIF-1alpha) is believed to be a key player. We aimed to better understand the mechanism underlying HICR in a triple negative breast cancer cell line, MDA-MB-231, with a focus on the role of HIF-1alpha. In this context, the effect of hypoxia on the sensitivity of MDA-MB-231 cells to cisplatin and their stem-like features was evaluated and the role of HIF-1alpha in both phenomena was assessed. Our results showed that hypoxia significantly increased MDA-MB-231 resistance to cisplatin. Correlating with this, intracellular uptake of cisplatin was significantly reduced under hypoxia. Furthermore, the stem-like features of MDA-MB-231 cells increased as evidenced by the significant increases in the expression of ATP binding cassette (ABC) drug transporters, the proportion of CD44+/CD24- cells, clonogenic survival and cisplatin chemoresistance. Under hypoxia, both the protein level and DNA binding of HIF-1alpha was dramatically increased. Surprisingly, siRNA knockdown of HIF-1alpha did not result in an appreciable change to HICR. Instead, signal transducer and activator of transcription 3 (STAT3) activation was found to be important. STAT3 activation may confer HICR by upregulating ABC transporters, particularly ABCC2 and ABCC6. This study has demonstrated that, in MDA-MB-231 cells, STAT3 rather than HIF-1alpha is important in mediating HICR to cisplatin. PMID- 29036916 TI - Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries. AB - Electrode materials and electrolytes play a vital role in device-level performance of rechargeable Li-ion batteries (LIBs). However, electrode structure/component degeneration and electrode-electrolyte sur-/interface evolution are identified as the most crucial obstacles in practical applications. Thanks to its congenital advantages, atomic layer deposition (ALD) methodology has attracted enormous attention in advanced LIBs. This review mainly focuses upon the up-to-date progress and development of the ALD in high-performance LIBs. The significant roles of the ALD in rational design and fabrication of multi dimensional nanostructured electrode materials, and finely tailoring electrode electrolyte sur-/interfaces are comprehensively highlighted. Furthermore, we clearly envision that this contribution will motivate more extensive and insightful studies in the ALD to considerably improve Li-storage behaviors. Future trends and prospects to further develop advanced ALD nanotechnology in next-generation LIBs were also presented. PMID- 29036918 TI - Regulation of the Electroanalytical Performance of Ultrathin Titanium Dioxide Nanosheets toward Lead Ions by Non-Metal Doping. AB - Three non-metallic elements, sulfur, fluorine, and iodine, were used to dope the ultrathin two-dimensional TiO2 nanosheets, which would regulate their electroanalytical properties toward heavy metal ions. Among these doped materials, fluorine-doped TiO2 nanosheets shows the highest electrochemical sensitivity and a superior detection limit toward Pb(II) when the doping concentration is 10%. When compared with the bare TiO2 nanosheets, the sensitivity increased by 102%, and the detection limit decreased by 36.4%. Through combining further electrochemical experiments and density-functional theory calculations, the enhanced electrochemical performance stemming from element doping was then investigated in detail. The theoretical calculation demonstrated that fluorine doping could greatly increase the adsorption energy of Pb(II) on the TiO2 nanosheets and enhance their loading capacity. Both cyclic voltammetric and electrical impedance spectroscopy analysis indicated the enhanced electron transfer rate on the electrode modified by fluorine-doped TiO2 nanosheets. Further measurement on the desorption performance showed the better stripping response of Pb(II) on the electrode with TiO2 nanosheets after fluorine doping, which suggests that fluorine doping is beneficial for Pb(II) diffuse onto the electrode surface for the reduction and stripping reaction. Therefore, the element doping of two-dimensional TiO2 nanosheets provides a facile method to extend the electronic materials toward detection of heavy metal ions in the environment. PMID- 29036919 TI - A Two-Step Bioconversion Process for Canolol Production from Rapeseed Meal Combining an Aspergillus niger Feruloyl Esterase and the Fungus Neolentinus lepideus. AB - Rapeseed meal is a cheap and abundant raw material, particularly rich in phenolic compounds of biotechnological interest. In this study, we developed a two-step bioconversion process of naturally occurring sinapic acid (4-hydroxy-3,5 dimethoxycinnamic acid) from rapeseed meal into canolol by combining the complementary potentialities of two filamentous fungi, the micromycete Aspergillus niger and the basidiomycete Neolentinus lepideus. Canolol could display numerous industrial applications because of its high antioxidant, antimutagenic and anticarcinogenic properties. In the first step of the process, the use of the enzyme feruloyl esterase type-A (named AnFaeA) produced with the recombinant strain A. niger BRFM451 made it possible to release free sinapic acid from the raw meal by hydrolysing the conjugated forms of sinapic acid in the meal (mainly sinapine and glucopyranosyl sinapate). An amount of 39 nkat AnFaeA per gram of raw meal, at 55 degrees C and pH 5, led to the recovery of 6.6 to 7.4 mg of free sinapic acid per gram raw meal, which corresponded to a global hydrolysis yield of 68 to 76% and a 100% hydrolysis of sinapine. Then, the XAD2 adsorbent (a styrene and divinylbenzene copolymer resin), used at pH 4, enabled the efficient recovery of the released sinapic acid, and its concentration after elution with ethanol. In the second step, 3-day-old submerged cultures of the strain N. lepideus BRFM15 were supplied with the recovered sinapic acid as the substrate of bioconversion into canolol by a non-oxidative decarboxylation pathway. Canolol production reached 1.3 g/L with a molar yield of bioconversion of 80% and a productivity of 100 mg/L day. The same XAD2 resin, when used at pH 7, allowed the recovery and purification of canolol from the culture broth of N. lepideus. The two-step process used mild conditions compatible with green chemistry. PMID- 29036920 TI - Evaluation of MC3T3 Cells Proliferation and Drug Release Study from Sodium Hyaluronate-1,4-butanediol Diglycidyl Ether Patterned Gel. AB - A pattern gel has been fabricated using sodium hyaluronate (HA) and 1,4 butanediol diglycidyl ether (BDDGE) through the micro-molding technique. The cellular behavior of osteoblast cells (MC3T3) in the presence and absence of dimethyloxalylglycine (DMOG) and sodium borate (NaB) in the pattern gel (HA BDDGE) has been evaluated for its potential application in bone regeneration. The Fourier transform infrared spectroscopy (FTIR), 13C-nuclear magnetic resonance spectroscopy (13C NMR), and thermogravimetric analysis (TGA) results implied the crosslinking reaction between HA and BDDGE. The scanning electron microscopy (SEM) analysis confirmed the formation of pattern on the surface of HA-BDDGE. The gel property of the crosslinked HA-BDDGE has been investigated by swelling study in distilled water at 37 degrees C. The HA-BDDGE gel releases DMOG in a controlled way for up to seven days in water at 37 degrees C. The synthesized gel is biocompatible and the bolus drug delivery results indicated that the DMOG containing patterned gel demonstrates a better cell migration ability on the surface than NaB. For local delivery, the pattern gel with 300 uM NaB or 300 uM DMOG induced cell clusters formation, and the gel with 150 uM NaB/DMOG showed high cell proliferation capability only. The vital role of NaB for bone regeneration has been endorsed from the formation of cell clusters in presence of NaB in the media. The in vitro results indicated that the pattern gel showed angiogenic and osteogenic responses with good ALP activity and enhanced HIF 1alpha, and Runx2 levels in the presence of DMOG and NaB in MC3T3 cells. Hence, the HA-BDDGE gel could be used in bone regeneration application. PMID- 29036921 TI - Transformation of CuO Nanoparticles in the Aquatic Environment: Influence of pH, Electrolytes and Natural Organic Matter. AB - Many studies have shown the effect of solution chemistry on the environmental behavior of metal-based nanoparticles (NPs), except CuO NPs. Here, we investigated the agglomeration, sedimentation, dissolution, and speciation of CuO NPs by varying pH, ionic strength, ionic valence, and natural organic matter (NOM). The results showed that as the pH moved away from 6, the size of CuO agglomerates decreased, along with the enhanced NP suspension stabilization, due to the increase of electrostatic repulsive force. Increasing ionic strength and valence intensified the agglomeration and sedimentation of CuO NPs because of the compression of electrical double layers. The presence of humic acid and citric acid enhanced the dispersion and stabilization of CuO NP suspension, but l cysteine showed a different impact. Decreasing pH, increasing ionic strength and all NOM improved the dissolution of CuO NPs, but the divalent electrolyte (CaCl2) inhibited the Cu2+ release from CuO NPs compared to the monovalent electrolyte (NaCl). In addition, X-ray absorption near edge structure (XANES) analysis demonstrated that the presence of l-cysteine transformed more than 30% of CuO NPs to Cu(I)-cysteine by coordinating with thiol group. This study can give us an in depth understanding on the environmental behavior and fate of CuO NPs in the aquatic environment. PMID- 29036923 TI - Environmental Impact and Relative Invasiveness of Free-Roaming Domestic Carnivores-a North American Survey of Governmental Agencies. AB - A survey of the United States and Canadian governmental agencies investigated the environmental impact and relative invasiveness of free-roaming domestic non native carnivores-dogs, cats, and ferrets. Agencies represented wildlife, fish, game, natural or environmental resources, parks and recreation, veterinary and human health, animal control, and agriculture. Respondents were asked to document the number and frequency of sightings of unconfined animals, evidence for environmental harm, and the resulting "degree of concern" in their respective jurisdictions. Results confirmed the existence of feral (breeding) cats and dogs, documenting high levels of concern regarding the impact of these animals on both continental and surrounding insular habitats. Except for occasional strays, no free-roaming or feral ferrets were reported; nor were there reports of ferrets impacting native wildlife, including ground-nesting birds, or sensitive species. This is the first study to report the relative impact of free-roaming domestic carnivores. Dogs and cats meet the current definition of "invasive" species, whereas ferrets do not. Differences in how each species impacts the North American environment highlights the complex interaction between non-native species and their environment. Public attitudes and perceptions regarding these species may be a factor in their control and agency management priorities. PMID- 29036924 TI - Bio-Inspired Distributed Transmission Power Control Considering QoS Fairness in Wireless Body Area Sensor Networks. AB - Recently, the development of wireless body area sensor network (WBASN) has accelerated due to the rapid development of wireless technology. In the WBASN environment, many WBASNs coexist where communication ranges overlap with each other, resulting in the possibility of interference. Although nodes in a WBASN typically operate at a low power level, to avoid adversely affecting the human body, high transmission rates may be required to support some applications. In addition to this, since many varieties of applications exist in the WBASN environment, each prospective user may have different quality of service (QoS) requirements. Hence, the following issues should be considered in the WBASN environment: (1) interference between adjacent WBASNs, which influences the performance of a specific system, and (2) the degree of satisfaction on the QoS of each user, i.e., the required QoS such as user throughput should be considered to ensure that all users in the network are provided with a fair QoS satisfaction. Thus, in this paper, we propose a transmission power adjustment algorithm that addresses interference problems and guarantees QoS fairness between users. First, we use a new utility function to measure the degree of the satisfaction on the QoS for each user. Then, the transmission power of each sensor node is calculated using the Cucker-Smale model, and the QoS satisfaction of each user is synchronized dispersively. The results of simulations show that the proposed algorithm performs better than existing algorithms, with respect to QoS fairness and energy efficiency. PMID- 29036922 TI - MicroRNA and mRNA Dysregulation in Astrocytes Infected with Zika Virus. AB - The Zika virus (ZIKV) epidemic is an ongoing public health concern. ZIKV is a flavivirus reported to be associated with microcephaly, and recent work in animal models demonstrates the ability of the virus to cross the placenta and affect fetal brain development. Recent findings suggest that the virus preferentially infects neural stem cells and thereby deregulates gene expression, cell cycle progression, and increases cell death. However, neuronal stem cells are not the only brain cells that are susceptible to ZIKV and infection of other brain cells may contribute to disease progression. Herein, we characterized ZIKV replication in astrocytes, and profiled temporal changes in host microRNAs (miRNAs) and transcriptomes during infection. We observed the deregulation of numerous processes known to be involved in flavivirus infection, including genes involved in the unfolded protein response pathway. Moreover, a number of miRNAs were upregulated, including miR-30e-3p, miR-30e-5p, and, miR-17-5p, which have been associated with other flavivirus infections. This study highlights potential miRNAs that may be of importance in ZIKV pathogenesis. PMID- 29036925 TI - Evaluating Oilseed Biofuel Production Feasibility in California's San Joaquin Valley Using Geophysical and Remote Sensing Techniques. AB - Though more costly than petroleum-based fuels and a minor component of overall military fuel sources, biofuels are nonetheless strategically valuable to the military because of intentional reliance on multiple, reliable, secure fuel sources. Significant reduction in oilseed biofuel cost occurs when grown on marginally productive saline-sodic soils plentiful in California's San Joaquin Valley (SJV). The objective is to evaluate the feasibility of oilseed production on marginal soils in the SJV to support a 115 ML yr-1 biofuel conversion facility. The feasibility evaluation involves: (1) development of an Ida Gold mustard oilseed yield model for marginal soils; (2) identification of marginally productive soils; (3) development of a spatial database of edaphic factors influencing oilseed yield and (4) performance of Monte Carlo simulations showing potential biofuel production on marginally productive SJV soils. The model indicates oilseed yield is related to boron, salinity, leaching fraction, and water content at field capacity. Monte Carlo simulations for the entire SJV fit a shifted gamma probability density function: Q = 68.986 + gamma (6.134,5.285), where Q is biofuel production in ML yr-1. The shifted gamma cumulative density function indicates a 0.15-0.17 probability of meeting the target biofuel production level of 115 ML yr-1, making adequate biofuel production unlikely. PMID- 29036926 TI - Evaluation of Sensible Heat Flux and Evapotranspiration Estimates Using a Surface Layer Scintillometer and a Large Weighing Lysimeter. AB - Accurate estimates of actual crop evapotranspiration (ET) are important for optimal irrigation water management, especially in arid and semi-arid regions. Common ET sensing methods include Bowen Ratio, Eddy Covariance (EC), and scintillometers. Large weighing lysimeters are considered the ultimate standard for measurement of ET, however, they are expensive to install and maintain. Although EC and scintillometers are less costly and relatively portable, EC has known energy balance closure discrepancies. Previous scintillometer studies used EC for ground-truthing, but no studies considered weighing lysimeters. In this study, a Surface Layer Scintillometer (SLS) was evaluated for accuracy in determining ET as well as sensible and latent heat fluxes, as compared to a large weighing lysimeter in Bushland, TX. The SLS was installed over irrigated grain sorghum (Sorghum bicolor (L.) Moench) for the period 29 July-17 August 2015 and over grain corn (Zea mays L.) for the period 23 June-2 October 2016. Results showed poor correlation for sensible heat flux, but much better correlation with ET, with r2 values of 0.83 and 0.87 for hourly and daily ET, respectively. The accuracy of the SLS was comparable to other ET sensing instruments with an RMSE of 0.13 mm.h-1 (31%) for hourly ET; however, summing hourly values to a daily time step reduced the ET error to 14% (0.75 mm.d-1). This level of accuracy indicates that potential exists for the SLS to be used in some water management applications. As few studies have been conducted to evaluate the SLS for ET estimation, or in combination with lysimetric data, further evaluations would be beneficial to investigate the applicability of the SLS in water resources management. PMID- 29036928 TI - Plasma miR-155, miR-203, and miR-205 are Biomarkers for Monitoring of Primary Cutaneous T-Cell Lymphomas. AB - Primary cutaneous T-cell lymphomas (CTCL) affect the skin and tend to transform and spread. CTCL involves primarily the Mycosis fungoides (MF) and more aggressive Sezary syndrome (SS). Oncogenic microRNAs (miRs) are stable epigenetic inhibitors often deregulated in the tumour and detectable as biomarkers in non cellular fractions of peripheral blood. The tumour-specific expression of miR 155, miR-203, and miR-205 was shown to correctly diagnose CTCL. We herein asked whether these microRNAs can be used as plasma biomarkers for clinical CTCL monitoring. Patients with CTCL (n = 10) and controls with non-malignant conditions (n = 11) repeatedly donated plasma samples every ca. five months. MicroRNAs were detected in the plasma samples by specifically-primed RT-PCR followed by multivariate analyses of the miR expression dynamics. We herein established the plasma miR-classifier for detecting CTCL based on the miR-155 upregulation and miR-203/miR-205 downregulation with 100% specificity and 94% sensitivity. The 3-miR-score in the consecutive samples coincided with the clinical outcome of MF and SS patients such as the therapy response or changes in the clinical stage or tumor size. Quantitation of the selected microRNAs in plasma is a specific and straightforward approach for evaluating CTCL outcome representing, thus, a valuable tool for CTCL diagnostics and therapy response monitoring. PMID- 29036927 TI - Chinese Olive (Canarium album L.) Fruit Extract Attenuates Metabolic Dysfunction in Diabetic Rats. AB - Hyperglycemia and dysregulation of lipid metabolism play a crucial role in metabolic dysfunction. The aims of present study were to evaluate the ameliorative effect of the ethyl acetate fraction of Chinese olive fruit extract (CO-EtOAc) on high-fat diet (HFD) and streptozotocin (STZ)-induced diabetic rats. CO-EtOAc, rich in gallic acid and ellagic acid, could markedly decreased the body weight and epididymal adipose mass. In addition, CO-EtOAc increased serum HDL-C levels, hepatic GSH levels, and antioxidant enzyme activities; lowered blood glucose, serum levels of total cholesterol (TC), triglycerides (TG), bile acid, and tumor necrosis factor alpha (TNFalpha); and reduced TC and TG in liver. We further demonstrated that CO-EtOAc mildly suppressed hepatic levels of phosphorylated IRS-1, TNF-alpha, and IL-6, but enhanced Akt phosphorylation. The possible mechanisms of cholesterol metabolism were assessed by determining the expression of genes involved in cholesterol transportation, biosynthesis, and degradation. It was found that CO-EtOAc not only inhibited mRNA levels of SREBP 2, HMG-CoAR, SR-B1, and CYP7A1 but also increased the expression of genes, such as ABCA1 and LDLR that governed cholesterol efflux and cholesterol uptake. Moreover, the protein expressions of ABCA1 and LDLR were also significantly increased in the liver of rats supplemented with CO-EtOAc. We suggest that Chinese olive fruit may ameliorate metabolic dysfunction in diabetic rats under HFD challenge. PMID- 29036930 TI - Automatic Hotspot and Sun Glint Detection in UAV Multispectral Images. AB - Last advances in sensors, photogrammetry and computer vision have led to high automation levels of 3D reconstruction processes for generating dense models and multispectral orthoimages from Unmanned Aerial Vehicle (UAV) images. However, these cartographic products are sometimes blurred and degraded due to sun reflection effects which reduce the image contrast and colour fidelity in photogrammetry and the quality of radiometric values in remote sensing applications. This paper proposes an automatic approach for detecting sun reflections problems (hotspot and sun glint) in multispectral images acquired with an Unmanned Aerial Vehicle (UAV), based on a photogrammetric strategy included in a flight planning and control software developed by the authors. In particular, two main consequences are derived from the approach developed: (i) different areas of the images can be excluded since they contain sun reflection problems; (ii) the cartographic products obtained (e.g., digital terrain model, orthoimages) and the agronomical parameters computed (e.g., normalized vegetation index-NVDI) are improved since radiometric defects in pixels are not considered. Finally, an accuracy assessment was performed in order to analyse the error in the detection process, getting errors around 10 pixels for a ground sample distance (GSD) of 5 cm which is perfectly valid for agricultural applications. This error confirms that the precision in the detection of sun reflections can be guaranteed using this approach and the current low-cost UAV technology. PMID- 29036929 TI - Interaction between Rho GTPases and 14-3-3 Proteins. AB - The Rho GTPase family accounts for as many as 20 members. Among them, the archetypes RhoA, Rac1, and Cdc42 have been the most well-characterized. Like all members of the small GTPases superfamily, Rho proteins act as molecular switches to control cellular processes by cycling between active, GTP-bound and inactive, GDP-bound states. The 14-3-3 family proteins comprise seven isoforms. They exist as dimers (homo- or hetero-dimer) in cells. They function by binding to Ser/Thr phosphorylated intracellular proteins, which alters the conformation, activity, and subcellular localization of their binding partners. Both 14-3-3 proteins and Rho GTPases regulate cell cytoskeleton remodeling and cell migration, which suggests a possible interaction between the signaling pathways regulated by these two groups of proteins. Indeed, more and more emerging evidence indicates the mutual regulation of these two signaling pathways. There have been many documented reviews of 14-3-3 protein and Rac1 separately, but there is no review regarding the interaction and mutual regulation of these two groups of proteins. Thus, in this article we thoroughly review all the reported interactions between the signaling pathways regulated by 14-3-3 proteins and Rho GTPases (mostly Rac1). PMID- 29036931 TI - Mass Spectrometric Studies of Apolipoprotein Proteoforms and Their Role in Lipid Metabolism and Type 2 Diabetes. AB - Apolipoproteins function as structural components of lipoprotein particles, cofactors for enzymes, and ligands for cell-surface receptors. Most of the apoliporoteins exhibit proteoforms, arising from single nucleotide polymorphisms (SNPs) and post-translational modifications such as glycosylation, oxidation, and sequence truncations. Reviewed here are recent studies correlating apolipoproteins proteoforms with the specific clinical measures of lipid metabolism and cardiometabolic risk. Targeted mass spectrometric immunoassays toward apolipoproteins A-I, A-II, and C-III were applied on large cross-sectional and longitudinal clinical cohorts. Several correlations were observed, including greater apolipoprotein A-I and A-II oxidation in patients with diabetes and cardiovascular disease, and a divergent apoC-III proteoforms association with plasma triglycerides, indicating significant differences in the metabolism of the individual apoC-III proteoforms. These are the first studies of their kind, correlating specific proteoforms with clinical measures in order to determine their utility as potential clinical biomarkers for disease diagnosis, risk stratification, and therapy decisions. Such studies provide the impetus for the further development and clinical translation of MS-based protein tests. PMID- 29036932 TI - Electrospun Chitosan-Gelatin Biopolymer Composite Nanofibers for Horseradish Peroxidase Immobilization in a Hydrogen Peroxide Biosensor. AB - A biosensor based on chitosan-gelatin composite biopolymers nanofibers is found to be effective for the immobilization of horseradish peroxidase to detect hydrogen peroxide. The biopolymer nanofibers were fabricated by an electrospining technique. Upon optimization of synthesis parameters, biopolymers nanofibers, an average of 80 nm in diameter, were obtained and were then modified on the working electrode surface. The effects of the concentration of enzyme, pH, and concentration of the buffer and the working potential on the current response of the nanofibers-modified electrode toward hydrogen peroxide were optimized to obtain the maximal current response. The results found that horseradish peroxidase immobilization on chitosan-gelatin composite biopolymer nanofibers had advantages of fast response, excellent reproducibility, high stability, and showed a linear response to hydrogen peroxide in the concentration range from 0.1 to 1.7 mM with a detection limit of 0.05 mM and exhibited high sensitivity of 44 uA?mM-1?cm-2. The developed system was evaluated for analysis of disinfectant samples and showed good agreement between the results obtained by the titration method without significant differences at the 0.05 significance level. The proposed strategy based on chitosan-gelatin composite biopolymer nanofibers for the immobilization of enzymes can be extended for the development of other enzyme based biosensors. PMID- 29036933 TI - School Leadership and Cyberbullying-A Multilevel Analysis. AB - Cyberbullying is a relatively new form of bullying, with both similarities and differences to traditional bullying. While earlier research has examined associations between school-contextual characteristics and traditional bullying, fewer studies have focused on the links to students' involvement in cyberbullying behavior. The aim of the present study is to assess whether school-contextual conditions in terms of teachers' ratings of the school leadership are associated with the occurrence of cyberbullying victimization and perpetration among students. The data are derived from two separate data collections performed in 2016: The Stockholm School Survey conducted among students in the second grade of upper secondary school (ages 17-18 years) in Stockholm municipality, and the Stockholm Teacher Survey which was carried out among teachers in the same schools. The data include information from 6067 students distributed across 58 schools, linked with school-contextual information based on reports from 1251 teachers. Cyberbullying victimization and perpetration are measured by students' self-reports. Teachers' ratings of the school leadership are captured by an index based on 10 items; the mean value of this index was aggregated to the school level. Results from binary logistic multilevel regression models show that high teacher ratings of the school leadership are associated with less cyberbullying victimization and perpetration. We conclude that a strong school leadership potentially prevents cyberbullying behavior among students. PMID- 29036935 TI - Laser Powder Cladding of Ti-6Al-4V alpha/beta Alloy. AB - Laser cladding process was performed on a commercial Ti-6Al-4V (alpha + beta) titanium alloy by means of tungsten carbide-nickel based alloy powder blend. Nd:YAG laser with a 2.2-KW continuous wave was used with coaxial jet nozzle coupled with a standard powder feeding system. Four-track deposition of a blended powder consisting of 60 wt % tungsten carbide (WC) and 40 wt % NiCrBSi was successfully made on the alloy. The high content of the hard WC particles is intended to enhance the abrasion resistance of the titanium alloy. The goal was to create a uniform distribution of hard WC particles that is crack-free and nonporous to enhance the wear resistance of such alloy. This was achieved by changing the laser cladding parameters to reach the optimum conditions for favorable mechanical properties. The laser cladding samples were subjected to thorough microstructure examinations, microhardness and abrasion tests. Phase identification was obtained by X-ray diffraction (XRD). The obtained results revealed that the best clad layers were achieved at a specific heat input value of 59.5 J.mm-2. An increase by more than three folds in the microhardness values of the clad layers was achieved and the wear resistance was improved by values reaching 400 times. PMID- 29036934 TI - Identification of Genetic Interaction with Risk Factors Using a Time-To-Event Model. AB - BACKGROUND: Certain diseases can occur with and without a trigger. We use Venous Thromboembolism (VTE) as our example to identify genetic interaction with pregnancy in women with VTE during pre- or postpartum. Pregnancy is one of the major risk factors for VTE as it accounts for 10% of maternal deaths. METHODS: We performed a whole genome association analysis using the Cox Proportional Hazard (CoxPH) model adjusted for covariates to identify genetic variants associated with the time-to-event of VTE related to pre- or postpartum during the childbearing age of 18-45 years using a case-only design in a cohort of women with VTE. Women with a VTE event after 45 years of age were censored and contributed only follow-up time. RESULTS: We identified two intragenic single nucleotide polymorphisms (SNPs) at genome-wide significance in the PURB gene located on chromosome 7, and two additional intragenic SNPs, one in the LINGO2 gene on chromosome 9 and one in RDXP2 on chromosome X. CONCLUSIONS: We showed that the time-to-event model is a useful approach for identifying potential hazard-modification of the genetic variants when the event of interest (VTE) occurs due to a risk factor (pre- or post-partum). PMID- 29036936 TI - Barriers and Facilitators for Health Behavior Change among Adults from Multi Problem Households: A Qualitative Study. AB - Multi-problem households are households with problems on more than one of the following core problem areas: socio-economic problems, psycho-social problems, and problems related to child care. The aim of this study was to examine barriers and facilitators for health behavior change among adults from multi-problem households, as well as to identify ideas for a health promotion program. A qualitative study involving 25 semi-structured interviews was conducted among Dutch adults who received intensive family home care for multi-problem households. Results were discussed with eight social workers in a focus group interview. Data were analyzed using the Framework Method. The results revealed that the main reason for not engaging in sports were the costs. Physical activity was facilitated by physically active (transport to) work and by dog ownership. Respondents who received a food bank package reported this as a barrier for healthy eating. Those with medical conditions such as diabetes indicated that this motivated them to eat healthily. Smokers and former smokers reported that stress was a major barrier for quitting smoking but that medical conditions could motivate them to quit smoking. A reported reason for not using alcohol was having difficult past experiences such as violence and abuse by alcoholics. Mentioned intervention ideas were: something social, an outdoor sports event, cooking classes, a walking group, and children's activities in nature. Free or cheap activities that include social interaction and reduce stress are in line with the identified barriers and facilitators. Besides these activities, it may be important to influence the target group's environment by educating social workers and ensuring healthier food bank packages. PMID- 29036937 TI - Behaviors Related to Mosquito-Borne Diseases among Different Ethnic Minority Groups along the China-Laos Border Areas. AB - Background: In China, mosquito-borne diseases are most common in the sub-tropical area of Yunnan province. The objective of this study was to examine behaviors related to mosquito-borne diseases in different ethnic minority groups and different socioeconomic groups of people living in this region. Methods: A stratified two-stage cluster sampling technique with probability proportional to size was used in Mengla County, Xishuangbanna Prefecture, Yunnan. Twelve villages were used to recruit adult (>=18 years old) and eight schools were used for children (<18 years old). A questionnaire on behaviors and environment variables related to mosquito-borne diseases was devised. Results: Multiple correspondence analysis (MCA) grouped 20 behaviors into three domains, namely, environmental condition, bed net use behaviors, and repellent use behaviors, respectively. The Han ethnicity had the lowest odds of rearing pigs, their odds being significantly lower than those of Yi and Yao. For bed net use, Dai and other ethnic minority groups were less likely to use bed nets compared to Yi and Yao. The odds of repellent use in the Han ethnicity was lower than in Yi, but higher than in Dai. The Dai group was the most likely ethnicity to use repellents. Farmers were at a higher risk for pig rearing and not using repellents. Education of less than primary school held the lowest odds of pig rearing. Those with low income were at a higher risk for not using bed nets and repellent except in pig rearing. Those with a small family size were at a lower risk for pig rearing. Conclusion: Different ethnic and socioeconomic groups in the study areas require different specific emphases for the prevention of mosquito-borne diseases. PMID- 29036939 TI - Female Genital Mutilation Reconstruction: A Preliminary Report. AB - Background: Female genital mutilation (FGM) is internationally recognized as a violation of human rights. Though rarely discussed, FGM is prevalent, affecting hundreds of millions of females worldwide. Objectives: We believe that is important for plastic surgeons to be informed and prepared to address the surgical and emotional needs of these women. We present our experience on treatment of women subjected to FGM. Methods: Three consecutive patients were treated by our clitoral restoration procedure. The procedure involves conscious sedation and involves wide release of scar tissue around the labia majora and clitoris. Labial flaps are elevated and secured down to the periosteum and the clitoris is allowed to remucosalize. Results: Three females with grade II mutilation were treated. The average age was 32.3-years-old and the average follow up was 305 days. All patients self-reported improved sexual function and decreased embarrassment with their partners. And all recommended the treatment to other women subjected to FGM. Conclusions: FGM is a violation of the basic rights of women and children. Plastic surgeons can help these women restore their physical and psychological sense of well-being by providing effective reconstructive options. Our goal is to raise awareness of this problem and describe a simple yet effective treatment for women that have been subject to FGM. Level of Evidence: 5. PMID- 29036940 TI - Oculonasal Synkinesis: Video Report and Surgical Solution of a Rare Phenomenon. AB - Background: Synkinesis represents involuntary muscular movements that occur in association with voluntary contraction of other muscle groups. Oculonasal synkinesis is a rare phenomenon. Objectives: In a series of videos, the authors present clinical findings and surgical correction of oculonasal synkinesis. Methods: Two women who underwent surgical procedures to correct oculonasal synkinesis were evaluated in a prospective study. One patient presented with bilateral synkinesis after 2 previous rhinoplasties. She underwent open rhinoplasty in our office. The other patient had unilateral synkinesis of the left side and received endonasal rhinoplasty. Results: The patients' mean age was 27.5 years, and follow-up was conducted for 6 months. Both patients experienced complete, stable resolution of synkinesis after surgical correction. No complications were recorded. Conclusions: Patients with oculonasal synkinesis may not notice it preoperatively and may regard these muscle movements as an unfavorable result of rhinoplasty. Therefore, careful preoperative evaluation is crucial. PMID- 29036941 TI - Breast Implant-Associated Anaplastic Large-Cell Lymphoma in a Transgender Woman. AB - : Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a rare but serious complication in patients with breast implants, Patients are at risk of BIA-ALCL whether they receive breast implants for cosmetic reasons or for reconstructive purposes after surgery for breast cancer or prophylactic mastectomy. During the past decade, an increased number of reports have addressed BIA-ALCL. Herein, we describe BIA-ALCL in a transgender woman. The patient received breast implants as part of her gender transition and was diagnosed with BIA-ALCL 20 years later. The patient underwent several revisional operations in the 20 years after her primary breast surgery to treat unexplained pain with low grade fever, severe capsular contracture (Baker grade III-IV), and several instances of implant rupture. In July 2016, the patient presented to our office with "late-onset" periprosthetic seroma 5 years after her last revisional breast surgery. She was diagnosed with BIA-ALCL without capsular invasion based on results of cytologic analysis of the periprosthetic seroma and histologic evaluation of the periprosthetic capsule. This diagnosis was verified further by results of immunohistochemical testing, which indicated expression of CD30 and T cell markers in the periprosthetic seroma only. Our intentions with this case report are to demonstrate that all patients who undergo breast implantation, including transgender women, are at risk of BIA-ALCL and to highlight the importance of cytomorphologic and immunohistochemical screening of seroma fluid in patients with late-onset periprosthetic seroma. LEVEL OF EVIDENCE: 5. PMID- 29036942 TI - Commentary on: Bilateral Breast Reduction Without Opioid Analgesics: A Comparative Study. PMID- 29036943 TI - Response to "Influences of Electrostatic or Triboelectric Charges and Breast Implant Symptomatic Contamination". PMID- 29036938 TI - Reactive Oxygen Species and NOX Enzymes Are Emerging as Key Players in Cutaneous Wound Repair. AB - Our understanding of the role of oxygen in cell physiology has evolved from its long-recognized importance as an essential factor in oxidative metabolism to its recognition as an important player in cell signaling. With regard to the latter, oxygen is needed for the generation of reactive oxygen species (ROS), which regulate a number of different cellular functions including differentiation, proliferation, apoptosis, migration, and contraction. Data specifically concerning the role of ROS-dependent signaling in cutaneous wound repair are very limited, especially regarding wound contraction. In this review we provide an overview of the current literature on the role of molecular and reactive oxygen in the physiology of wound repair as well as in the pathophysiology and therapy of chronic wounds, especially under ischemic and hyperglycemic conditions. PMID- 29036944 TI - Influences of Electrostatic or Triboelectric Charges and Breast Implant Symptomatic Contamination. PMID- 29036945 TI - What's Your Micromort? A Patient-Oriented Analysis of Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL). AB - Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) continues to be a rare and elusive malignancy. Because BIA-ALCL does not behave like traditional lymphomas, additional research needs to be conducted to further delineate the lymphoproliferative nature of BIA-ALCL. An estimated 35 million women worldwide have breast implants and the total reported deaths from BIA-ALCL is 12 to date. The term micromort was introduced in 1979 by Ronald Howard as a person's risk of dying as 1 in a million. Drinking 0.5 L of wine or walking 17 miles all increase your risk of death by 1 micromort. Risk of death from BIA-ALCL is 0.4 micromorts for a woman having bilateral breast implants. This information is important for counseling new patients and those presenting with delayed onset seromas. PMID- 29036946 TI - Commentary on: Breast Implant-Associated Anaplastic Large-Cell Lymphoma in a Transgender Woman. PMID- 29036947 TI - Commentary on: Oculonasal Synkinesis: Video Report and Surgical Solution of a Rare Phenomenon. PMID- 29036949 TI - [Paying more attentions to diagnosis and treatment of complex brucellosis]. PMID- 29036948 TI - Commentary on: Transcutaneous Brow Shaping: A Straightforward and Precise Method to Lift and Shape the Eyebrows. PMID- 29036950 TI - [To attach great importance to the diagnosis and treatment of psychosomatic disorders in internal medicine]. PMID- 29036951 TI - [The clinical and pathological features of patients with infective endocarditis diagnosed at autopsy]. AB - Objective: To study the characteristics and misdiagnosis of infective endocarditis (IE). Methods: Clinical and pathological data of 15 IE patients diagnosed by autopsy were collected, compared with the cohort of 29 regular IE cases. Results: In the autopsy patients, IE in the left heart was predominat (14/15, 93.3%). Arterial embolism was the most common comorbidity (10/15, 66.7%), followed by pneumonia, malignancies, pyelonephritis (9/15, 60.0%; 7/15, 46.7%; 6/15, 40.0% respectively). The age was elder [(64.0+/-21.2)years vs(50.8+/ 18.3)years, t=-2.15, P=0.037] in autopsy patients than in control group. More patients of missed diagnosis were combined with malignancies or deep vein catheterization [7/15(46.7%)vs 1/29(3.4%); 5/15(33.3%)vs 0/29(0)respectively]. Fever and cardiac murmur were rare in misdiagnosed cases[11/15(73.7%)vs 28/29(96.9%), 0/15(0)vs 15/29(51.7%) respectively]. Echocardiography and blood culture were performed in only 33.3%(5/15) and 26.7%(4/15) cases of missed diagnosis with low positive rates compared with regular IE patients [0/15(0) vs 27/29 (93.1%); 1/15(6.7%) vs 15/29(55.6%)]. Conclusions: Infective endocarditis should be suspected in patients with the risk factors of IE even without fever or cardiac murmur. Echocardiography and blood culture should be done as screening tests of IE. PMID- 29036952 TI - [A clinical analysis of 20 patients with neurobrucellosis]. AB - Objective: To investigate the epidemiological and clinical features of 20 patients with neurobrucellosis (NB) . Methods: The epidemiological, clinical, laboratory and treatment data of patients diagnosed with NB from 2010 to 2016 in Peking Union Medical College Hospital were retrospectively analyzed. Results: Twelve (60%) patients reported the history of contact with infected animals and intake of raw milk product. The common manifestations included headache (85%, 17/20), fatigue (85%, 17/20), fever (80%, 16/20), weight loss (70%, 15/20), the signs included pathological reflection (70%, 15/20), decreased muscle strength(45%, 9/20). The mean time to diagnosis was 7.9 months. All patients were diagnosed by positive serum antibody against Brucella. Body fluid culture revealed positive blood Brucella in 5 (31.2%, 5/16) patients and positive cerebrospinal fluid in 3 (16.7%, 3/18) patients. The medication consisted of rifampicin and minocycline based regimens or combined with ceftriaxone, fluroquinolone, streptomycin or trimethoprim-sulfamethoxazole (TMP-SMX). Ninety percent(18/20) patients obtained clinical improvement, whereas mild sequelae were observed in 5 patients. Conclusions: Clinical features of NB are heterogeneous. Carefully seek for epidemiological clues and early tests for Brucella may lead to well outcome. Combination therapy with two or more active antimicrobial agents is suggested. PMID- 29036953 TI - [A clinical analysis of six patients with Brucella endocarditis and literature review]. AB - Objective: To analyze the epidemiology and clinical characteristics of patients with Brucella endocarditis in order to improve the understanding and treatment of Brucella endocarditis. Methods: The clinical data including demographic characteristics, clinical features, laboratory data, echocardiography, treatment and clinical outcome of 6 patients with Brucella endocarditis were collected and analyzed. Results: In our database consisting of 211 brucellosis patients with positive blood culture, 6 patients (2.8%) with Brucella endocarditis were selected from May 2007 to December 2016 in Peking Union Medical College Hospital.The age range was 25-55 years, among whom 5 patients were men.The majority were farmers and all patients reported the history of closely contact with livestock.All of them had fever and 3 of them had arthralgia.Four patients had aortic involvement (4/6) and 2 of them presented with symptoms of left ventricular failure at admission.Blood culture of Brucella and serum agglutination test of Brucella were positive in all of them.Combined antibiotics treatments were given to all patients.Valve replacement surgery was performed in four patients, among them, three patients well recovered, one lost. Among all the patients, four were followed up continually and other two were lost. Conclusions:Brucella endocarditis has a predominance of aortic involvement and is prone to left ventricular failure.Early antibiotic treatment combined with valve replacement surgery is effective to improve the prognosis. PMID- 29036954 TI - [Relationship between highly sensitive cardiac troponin T and sepsis and outcome in critically ill patients]. AB - Objective: To investigate the prognostic value of highly sensitive cardiac Troponin T (hs-cTn T) for sepsis in critically ill patients. Methods: Patients estimated to stay in the ICU of Fuxing Hospital for more than 24h were enrolled at from March 2014 to December 2014. Serum hs-cTn T was tested within two hours. Univariate and multivariate linear regression analyses were used to determine the association of variables with the hs-cTn T. Multivariable logistic regression analysis was used to evaluate the risk factors of 28-day mortality. Results: A total of 125 patients were finally enrolled including 68 patients with sepsis and 57 without. The levels of hs-cTn T in sepsis and non-sepsis groups were significantly different[52.0(32.5, 87.5) ng/L vs 14.0(6.5, 29.0) ng/L respectively, P<0.001]. In sepsis group, hs-cTn T among common sepsis, severe sepsis and septic shock were similar. Hs-cTn T was significantly higher in non survivors than survivors [27(13, 52)ng/L vs 44.5(28.8, 83.5)ng/L, P<0.001]. Age, sepsis, serum creatinine were independent risk factors affecting hs-cTn T by multivariate linear regression analyses. But hs-cTn T was not a risk factor for death. Conclusion: Patients with sepsis had higher serum hs-cTn T than those without sepsis. but it was not found to be associated with the severity of sepsis. PMID- 29036955 TI - [Comparision of risk factors and pathogens in patients with early- and late-onset ventilator-associated pneumonia in intensive care unit]. AB - Objective: To compare risk factors and bacterial etiology in patients with early onset versus late-onset ventilator-associated pneumonia (VAP) in intensive care unit (ICU). Methods: This prospective cohort study enrolled mechanically ventilated patients hospitalized for more than 48 hours in the first affiliated hospital, China Medical University from Jan 2012 to Jun 2016. Subjects were classified by ventilator status: early-onset VAP (< 5 d ventilation, E-VAP) or late-onset VAP (>= 5 d ventilation, L-VAP). Potential risk factors and pathogen were evaluated. Results: A total of 4 179 patients in adult ICU were screened, 3 989 (95.5%) of whom were mechanically ventilated, 962 patients with mechanical ventilation time >= 48 h. VAP developed in 142 patients. E-VAP and L-VAP had different potential risk factors based on statistical analysis.Independent risk factors for E-VAP included male (OR=1.825, 95%CI 1.006-3.310), chronic obstructive pulmonary disease (COPD; OR=3.746, 95%CI 1.795-7.818), emergency intubation (OR=1.932, 95%CI 1.139-3.276), aspiration (OR=3.324, 95%CI 1.359 8.130). Whereas independent risk factors for L-VAP were coma (OR=2.335, 95%CI 1.300-4.194), renal dysfunction (OR=0.524, 95%CI 0.290-0.947), emergency intubation (OR=2.184, 95%CI 1.334-3.574). Mortality in E-VAP and L-VAP group were both higher than the non-VAP group[30.2%(19/63)vs 19.8%(162/820), P=0.044; 29.1%(23/79) vs 19.8%(162/820), P=0.046]. The pathogens isolated from early-onset versus late-onset VAP were not significantly different between groups, which the most common ones were acinetobacter baumannii, pseudomonas aeruginosa and klebsiella pneumoniae. Conclusion: E-VAP and L-VAP have different risk factors, however related pathogens are similar. Different specific preventive strategies are suggested based on different onset of VAP. PMID- 29036956 TI - [The diagnostic value of neuron-specific enolase, central nervous system specific protein and interleukin-6 in sepsis-associated encephalopathy]. AB - Objective: To investigate the diagnostic value of neuron-specific enolase(NSE), central nervous system specific protein(S100beta), interleukin-6(IL-6) in sepsis associated encephalopathy(SAE). Methods: Clinical data of patients admitted to ICU and diagnosed with sepsis were collected from January 2015 to June 2016 in Xiangya Hospital, Central South University. SAE was defined as cerebral dysfunction in the presence of sepsis that also fulfilled the exclusion criteria. The acute physiology and chronic health score (APACHE II), sequential organ failure assessment (SOFA), NSE, S100beta, IL-6, ICU stay time and 28-day mortality were compared between the two groups. NSE, S100beta and IL-6 were measured on the 1st and 3rd day in ICU to determine the optimal cut-off value of SAE. Results: Among 59 enrolled patients, 36 were assigned to SAE group while 23 were non-SAE group. The SAE group had a significantly higher APACHE II and SOFA scores, as well as the length of ICU stay (P<0.01). The levels of NSE, S100beta and IL-6 in the two groups both increased on the 1st day, and decreased on the 3rd day. The level of NSE on the 1st day[19.28(13.00, 30.52) MUg/L vs 16.61(7.58, 22.01 MUg/L)] and the 3rd day[16.03(9.40, 21.29) MUg/L vs 11.39(8.49, 15.00) MUg/L, P=0.029], IL-6 on the 1st day[676.25(81.34, 5 000.00) mg/L vs [209.10(42.27, 648.20) mg/L, P=0.005] and the 3rd day[157.10(72.85, 687.63) mg/L vs 55.92(31.62, 177.00) mg/L, P=0.026] of SAE group was significantly higher than those of non-SAE group. However S100beta between groups on the 1st day [0.33(0.15, 0.54) MUg/L vs 0.23(0.16, 0.53) MUg/L] and the 3rd day[0.19(0.10, 0.29) MUg/L vs 0.10(0.05, 0.17) MUg/L] was neither significant (P>0.05). The diagnostic values for SAE of NSE, S100beta and IL-6 were 14.36 MUg/L, 0.14 MUg/L and 91.305 mg/L with sensitivity 61.1%, 61.1%, 72.2% and specificity 73.9%, 69.6%, 69.6%, respectively. The diagnostic AUC of NSE and IL-6 combination was 0.774, 95%CI 0.651-0.896. Conclusion: All sepsis patients have different degrees of brain injury. NSE combined with IL-6 on the 3rd day in ICU demonstrates the diagnostic significance of SAE. PMID- 29036957 TI - [A meta-analysis of randomized controlled trials of bismuth-containing quadruple therapy combined with probiotic supplement for eradication of Helicobacter pylori]. AB - Objective: The bismuth containing quadruple therapy (BCQT) acts as first-line therapy in China. Probiotics supplement also shows Helicobacter pylori eradication effects. Adding probiotics along with BCQT may improve eradication rate of Helicobacter pylori. Methods: Electronic databases including Medline, Embase, Wanfang Database, etc. were searched by the established searching strategy. After that, a funnel plot was adopted to evaluate publication bias. The meta-analysis was supplemented in fixed effect model for low heterogeneity and randomized effect model for high heterogeneity conversely. Results: A total of 16 RCTs with 2 466 subjects finally met the inclusion criteria. There was no significant heterogeneity among the trials. Compared with control group (BCQT only), the probiotic group (combined supplement of probiotics and BCQT) underwent higher eradication rate[90.76%(1 130/1 245) vs 80.43%(982/1 221)]with statistical significance (P=0.000). The probiotics might improve the eradication rate in patients not receiving previous eradication therapy [89.00%(445/500) vs 84.73%(416/491), P=0.04]. Probiotics might also improve the eradication rate[91.06%(326/358) vs 73.83%(268/363)]in patients relapsed from triple therapy (P=0.000). The patients who underwent the combination of BCQT and single Lactobacillus genus showed higher eradiation rate than those with two or more genera. Moreover, fewer adverse reactions were reported in probiotics group than that in control group[13.59%(104/765) vs 28.90%(213/737), P=0.000]. Conclusions: The combination of BCQT and probiotics may improve the eradication rate of Helicobacter pylori especially in patients receiving front-line eradication regimen or failed from triple therapy. Probiotics may reduce the adverse reactions when combined with other eradication agents. PMID- 29036958 TI - [A clinical and hereditary analysis of novel complex heterozygous KCNJ1 mutation in a Bartter syndrome type II patient]. AB - Bartter syndrome (BS) is a hereditary condition transmitted as an autosomal recessive (Bartter type 1 to 4) or dominant trait (Bartter type 5). The disease associates hypokalemic alkalosis with varying degrees of hypercalciuria. Here we presented a case (BS type II) of a 17 years old female presented with polyhydramnios, polyuria, nephrocalcinosis and hypokalemia, which was alleviated after treatment with celecoxib and vitamin D(3). DNA sequencing identified compound heterozygous KCNJ1 gene mutations, c. 931C >T (p.R311W) and c. 445 446insCCTGAACAC (p.V149Afs, 150X), with the latter a novel mutation. Her father and mother were heterozygous carriers of c. 931C >T (p.R311W) and c. 445 446insCCTGAACAC (p.V149Afs, 150X), respectively. In conclusion, this case of BS type II is caused by a novel compound heterozygous KCNJ1 mutation. Further studies are needed to verify the effect of celecoxib in BS patients. PMID- 29036959 TI - [The study of liver macrophages polarization in patients with autoimmune hepatitis]. AB - To explore the functional phenotype of liver macrophages in patients with autoimmune hepatitis (AIH). Compared with patients with nonalcoholic fatty liver disease (NAFLD) and chronic hepatitis B (CHB), the absolute CD(68)(+) cell count in patients with AIH was significantly higher (all P<0.05). It was positively correlated with ALT and IgG levels (the correlation coefficients 0.600 and 0.700, P=0.285 and 0.188 respectively). Additionally, compared with patients with NAFLD, the absolute iNOS positive cell count in patients with AIH and CHB were significantly higher (all P<0.05). The expression of TNFalpha, iNOS and IL-1beta in patients with AIH and CHB were significantly higher than in patients with NAFLD (all P<0.05). Interestingly, compared with patients with AIH and CHB, the absolute CD(206)(+) cell count in patients with NAFLD were significantly higher (all P<0.05). CD(206) expression in patients with NAFLD was higher than patients with AIH and CHB, but with no statistical significance. M1 type macrophages over expressed and played a major role in the inflammatory reaction and liver injury in patients with AIH. PMID- 29036960 TI - [Two cases report of primary aldosteronism with positive cardiac troponin]. PMID- 29036961 TI - [Ovarian carcinoma-associated hyperamylasemia masquerading as acute pancreatitis: a case report]. PMID- 29036962 TI - [Cladribine in the treatment of TET2(+) refractory acute myeloid leukemia: a case report]. PMID- 29036963 TI - [Common questions about clinical management of complicated urinary tract infections]. PMID- 29036965 TI - [The mechanism of drug resistance in Acinetobacter baumannii and updates of development in novel antibiotics]. PMID- 29036964 TI - [Initial therapy of invasive candidiasis: echinocandin or fluconazole?] PMID- 29036966 TI - [The genetic characteristics of frontotemporal dementia and its correlation to amyotrophic lateral sclerosis]. PMID- 29036967 TI - [What's new in the 2016 American Thyroid Association guidelines for diagnosis and management of hyperthyroidism and other causes of thyrotoxicosis]. AB - The 2016 American Thyroid Association guidelines for diagnosis and management of hyperthyroidism and other causes of thyrotoxicosis has been officially published in October of 2016, five years after the publication of the previous version. Revised contents in the new guideline are summarized in this review. PMID- 29036968 TI - [The 458th case: fever, cytopenia, abdominal pain, and multiple intestinal ulcerations with perforation]. AB - Trisomy 8 in myelodysplastic syndrome (MDS) plays an important role in concurrent intestinal Behcet's disease (BD) pathogenesis. Here, we reported a case of intestinal BD combined with MDS involving trisomy 8. A 48-year-old woman who has had a 20-year history of recurrent oral ulcer, perineal ulcer and iris, was diagnosed as MDS with trisomy 8 four years ago. She developed high fever and acute abdominal pain. Multiple ulcerative perforations in ileum and colon were found by endoscopy, meeting the criteria for intestinal BD. The patient was successfully treated with immunomodulatory drugs. PMID- 29036969 TI - [Risk factors, prevalence, diagnosis and treatment of hypertrophic cardiomyopathy patients complicating with atrial fibrillation]. PMID- 29036970 TI - [Update on the diagnosis and management of cardiac sarcoidosis]. PMID- 29036971 TI - [Chinese expert consensus statement on clinical diagnosis and treatment of fulminant myocarditis in adults]. PMID- 29036972 TI - [Analysis of influencing factors of heart rate deceleration capacity in patients with dilated cardiomyopathy]. AB - Objective: To investigate the determinants affecting the heart rate deceleration capacity (DC) in patients with dilated cardiomyopathy (DCM). Methods: One hundred patients with DCM (DCM group) and 202 healthy subjects (control group) were respectively enrolled. Echocardiography and 24 hours electrocardiogram were performed in all subjects. DC value was compared between the two groups. Multiple regression analysis was made to evaluate the related determinants of DC ((age, sex, echocardiographic parameters including the left atrial diameter (LAD) and left ventricular ejection fraction (LVEF)). Results: (1) DC value was significantly lower in DCM group than in control group( (4.40+/-2.03) ms vs. (7.30+/-1.81) ms, P<0.01), prevalence of DC value<=4.5 ms was significantly higher in DCM group than in control group (62% vs. 6%, P<0.01). (2) DC value in the DCM group decreased in proportion to increasing LAD dimension, DC value was (5.60+/-2.04) ms, (4.50+/-2.07) ms and (3.60+/-1.62) ms (P<0.05) in DCM patients with LAD<=40 mm, 40 mm50 mm, respectively. (3) DC value in the DCM group was negatively related to the LAD (r=-0.366, P<0.01), positively related to the LVEF (r= 0.241, P<0.01), but not related with age and sex. Multiple factors regression analysis showed that increased LAD was related to the reduced DC values independtly. Conclusion: DC value of the patients in the DCM group is decreased, which indicate the decrease of the vagus nerve tension, and increased LAD is related to the reduced DC value independtly in DCM patients. PMID- 29036973 TI - [Predictive value of cardiac magnetic resonance-derived parameters on the improvement of left ventricular function in patients with acute viral myocarditis]. AB - Objective: To evaluate the predictive value of cardiac magnetic resonance (CMR) derived parameters on the improvement of left ventricular function in patients with acute viral myocarditis. Methods: Forty patients, who referred for acute viral myocarditis in our hospital from September 2011 to September 2015, were prospectively enrolled in this study.All patients were examined by CMR during hospitalization for acute viral myocarditis (baseline) and after 12 months.The CMR sequences include: two dimension steady state free precession, 2D SSFP; triple inversion recovery, triple IR; early gadolinium enhancement; phase sensitive inversion recovery turbo field echo, PSIR TFE. Results: Thirty out of 40 patients with susceptive acute viral myocarditis met the CMR criteria of acute viral myocarditis (Lake Louise Criteria) (LL+ ) and the other 10 patients did not meet the diagnostic criteria (LL-). Left ventricular ejection fraction (LVEF) values were significantly lower in LL+ group than in LL- group at baseline and at 12 months after discharge (P<0.01 or 0.05, respectively). The baseline left ventricular end-systolic volume index (LVESVI) was significantly higher in LL+ group than in LL- group (P<0.05) and was similar between the groups at 12 months follow up.Left ventricular end-diastolic volume index (LVEDVI )was similar between the two groups at baseline and at 12 months follow up.LVEF was significantly higher during 12 months follow up compared to baseline in LL+ group and remained unchanged in LL- group during the two time points.LVESVI and LVEDVI remained unchanged at baseline and during 12 months follow up both in LL+ and LL- groups (P>0.05). Results showed that LL+ , edema ratio (ER) positive and global relative enhancement (gRE) positive were associated with significant increase of LVEF at 12 months follow up.However, LL-, ER negative, gRE negative, late gadolinium enhancement(LGE) negative and LGE positive linked with unchanged LVEF at 12 months follow up (P>0.05). Patients were further divided into LVEF increase (DeltaLVEF>=5%) group and non LVEF increase group (DeltaLVEF<5%), the results of Chi-square test showed that LL+ and ER positive were related to the improvement of LVEF (P<0.05), while gRE and LGE were not associated with improvement of cardiac function (P>0.05). Multiple linear regression analysis, using ER, gRE and LGE as independent variables and LVEF as dependent variables, showed that the presence of myocardial edema was the strongest independent predictor of an increase in LVEF at follow up (full model: non-standardized coefficient 0.445, P=0.043; reduced model: non-standardized coefficient 0.442, P=0.12). Conclusion: Cardiac magnetic resonance imaging monitoring is valuable to observe the cardiac function and morphology changes in patients with acute viral myocarditis, and myocardial edema imaging is the most powerful parameter to predict the improvement of LVEF in this patient cohort. PMID- 29036974 TI - [The impact of hydrogen sulfide on the heme oxygenase-1/carbon monoxide system in Coxsackie virus B3-induced myocarditis in mice]. AB - Objective: To explore the impact of hydrogen sulfide (H(2)S) on the heme oxygenase-1/carbon monoxide pathway in Coxsackie virus B3 (CVB3)-induced murine myocarditis (VMC) model. Method: A total of 70 inbred male Balb/c mouse (4-6 weeks old) were randomized into the following four groups: Normal, VMC, PAG and NaHS (n=10 for Normal, n=20 for VMC, PAG and NaHS groups). Mice in Normal group were non-infected mice treated with intraperitoneal injection of sterile phosphate-buffered saline daily for 10 days.Mice in VMC group received intraperitoneal CVB3 injection (0.1 ml 10(-5.69)TCID(50)m.ml(-1).d(-1) and PBS for 10 days), and mice in PAG group received additional intraperitoneal DL proparglygylcine injection (40 mg.kg(-1).d(-1) for 10 days), mice in NaHS group received additional intraperitoneal NaHS injection (50 MUmol.kg(-1).d(-1) for 10 days). All mice were sacrificed on day 10th, and body weight and heart weight, the ratio of heart weight to body weight were compared among groups.Pathological changes of heart tissues were observed microscopically by HE and the histopathologic scores were valued.The content of COHb was tested after the gathering of blood specimens while reverse transcription-polymerase chain reaction was used to detect myocardial HO-1 mRNA expression. Results: (1) Pathological findings in myocardium: hearts sections in Normal group were normal and no inflammatory cells and necrosis were found.A notable cellular infiltration, interstitial edema, vascular hyperemia and necrosis were observed in heart section of VMC, PAG and NaHS group.Extensive inflammations and larger area of myocardial cells necrosis were evidenced in PAG group and above changes were significantly reduced in NaHS group.(2) Comparison of the ratio of heart weight to body weight and histological scores of myocardium: the ratio was significantly higher in the VMC, PAG, NaHS groups than in Normal group (P<0.05), which was higher in PAG group and lower in NaHS group as compared with VMC group (both P<0.05). The histopathologic scores of all CVB3 innoculation groups were higher than in the Normal group, which was higher in PAG group and lower in NaHS group as compared to VMC group (both P<0.05). (3) The content of blood COHb in VMC, PAG or NaHS group was significantly higher than that in Normal group (P<0.05), which was significantly lower in PAG group, and higher in NaHS group as compared to VMC group (both P<0.05). (4) The mRNA expression of myocardial HO-1 detected by RT-PCR: weak expression was observed in Normal group, which was significantly upregulated in VMC, PAG and NaHS groups (P<0.05), which was downregulated in PAG group and upregulated in NaHS group as compared to VMC group (both P<0.05). (5) Correlation analysis: blood COHb concentration was positively correlated with myocardial HO-1 mRNA expression(r=0.927, P=0.000), negatively correlated with histopathologic scores(r=-0.753, P=0.000)and the histopathologic scores were negatively correlated with the myocardial HO-1 mRNA expression (r= 0.754, P=0.000). Conclusions: H(2)S could play a protective role in murine CVB3 myocarditis model through inducing HO-1 expression and upregulating HO-1/CO pathway. PMID- 29036975 TI - [Predictive value of serial platelet function testing on outcome in patients undergoing complex percutaneous coronary intervention]. AB - Objective: To observe the predictive value of serial platelet function testing (PFT) on outcome in patients undergoing complex percutaneous coronary intervention (PCI). Methods: Six hundred and two consecutive patients undergoing complex PCI in Anzhen hospital were enrolled during October 2011 to June 2012.Adenosine diphosphate(ADP)-induced platelet aggregation was measured by light transmission aggregometry on the first, sixth and twelfth month after PCI and the mean value was calculated.The cut-off value of high on-treatment platelet reactivity (HTPR) was defined as 40%.The primary endpoint was major adverse cardiovascular and cerebral event (MACCE). Clinical outcomes were analyzed by the Kaplan-Meier method and differences were compared using the log-rank test.Multivariate analyses by Cox proportion hazards regression were applied to identify variables independently associated with the adverse outcomes. Results: Five hundred and eighty-five patients (HTPR, n=285; non-HTPR, n=280) finished the follow-up ((28.47+/-7.45) months). A total of 33 cases of MACCE were observed during the follow-up, among which 29 cases(8.42%) were in HTPR group and 9 cases (3.21%) in the non-HTPR group.Kaplan-Meier analysis suggested that HTPR was associated with an increased incidence of MACCE (log-rank test, P=0.01). The Cox multivariate analysis indicated that HTPR was an independent risk factor of MACCE (HR=2.69, 95%CI 1.23-5.85, P=0.01) in patients undergoing complex PCI.Incidence of MACCE was similar between HTRP patients receiving standard dual antiplatelet therapy (DAPT) or prolonged DAPT (>12 months). Conclusion: Serial PFT could predict the long-term prognosis of patients underwent complex PCI. PMID- 29036977 TI - [Safety and feasibility of sheathless transfemoral aortic valve implantation]. AB - Objective: To investigate the safety and feasibility of sheathless transfemoral aortic valve replacement (TAVR). Methods: In this prospective study, we enrolled 23 patients with severe aortic stenosis (AS) who were inoperable or at high-risk for surgical aortic valve replacement operation in Fuwai hospital From September 2012 to June 2015. Multislice spiral CT and angiography of femoral artery showed that all patients had minimal femoral artery diameters (<6.5 mm) and severe calcification which was not suitable for transfemoral TAVR through sheath. We attempted to apply the sheathless transfemoral TAVR using Venus-A prosthesis without sheath insertion, and procedure related complication during the procedure and hospital stay were observed. Results: The 6 mm*30 mm balloon was used for femoral artery predilation in 1 patient with iliofemoral artery stenosis before delivery system was transported. In the other 22 patients, the delivery system was transported directly. A total of 21 patients finished TAVR with transfemoral sheathless technique. In 2 patients, prosthesis was unable to fully expand after release due to severe valve calcification, and patients received urgent surgical aortic valve replacement. One patient had valve dislocation into the ascending aorta that was not related to the sheathless replacement technique, and delivery system and Venus-A valve were removed after femoral artery was opened surgically, and repeated sheathless TAVR implantation was performed and was successful. Moderate aortic regurgitation occurred in 2 patients immediately after procedure, and trace or mild aortic regurgitation was detected in rest of the patients. One patient had puncture site rupture and bleeding after procedure, and was successfully treated by balloon compression without blood transfusion. Complete atrioventricular block occurred in 3 patients within 24 hours after procedure and lasted after 48-72 hours, permanent pacemakers were implanted in these patients. Conclusion: The sheathless transfemoral technique in TAVR is safe and feasible in severe aortic stenosis patients with small access vessel diameter. PMID- 29036976 TI - [Comparison of perioperative serum thrombomodulin levels in patients underwent off-pump coronary artery bypass grafting with and without cardiogenic shock]. AB - Objective: To observe the perioperative changes of serum thrombomodulin in patients with and without cardiogenic shock undergoing off-pump coronary artery bypass grafting surgery. Methods: A total of 66 patients with coronary artery disease who underwent off-pump coronary artery bypass grafting surgery between June and December 2015 in our hospital were included in this study.The patients were divided into non-cardiogenic shock group (n=51) and shock group (n=15) according to the absence or presence of cardiogenic shock.The clinical data of the two groups were analyzed.Arterial blood samples were collected immediately after anesthesia, and at 4, 8, 16, 24, 48 and 72 hours after surgery.The levels of serum thrombomodulin were tested with enzyme-linked immunosorbent assay. Results: (1)The prevalence of diabetes was significantly higher (64.7%(33/51) vs. 20.0%(3/15), P<0.01), while prevalence of myocardial infarction was significantly lower (41.2%(21/51)vs. 100%(15/15), P<0.01) in non-cardiogenic shock group than in cardiogenic shock group.(2)The peak plasma creatinine level, troponin I level and creatine kinase MB level were significantly lower in the non-cardiogenic shock group than in the cardiogenic shock group ((88.5+/-36.7) MUmol/L vs. (122.6+/-71.1) MUmol/L, 1.3(0.2, 2.7) MUg/L vs. 16.4(5.8, 23.4) MUg/L and (18.8+/ 4.7) MUg/L vs.(49.3+/-15.9) MUg/L, respectively, all P<0.05). (3)Mechanical ventilation time was significantly longer (11.5 (9.0, 18.0) hours vs. 20.0 (8.5, 82.5) hours, P=0.02), and frequency of intra-aortic balloon pump use (0 vs. 100%, P<0.01) was significantly higher in the cardiogenic shock group than in the non cardiogenic shock group.(4) Prevalence of atrial fibrillation (5.9%(3/51) vs. 80.0%(12/15)) and myocardial infarction (19.6%(10/51)vs. 93.3%(14/15)) that occurred during and after surgery was significantly lower in the non-cardiogenic shock group than in the shock group(all P<0.01). (5)The serum thrombomodulin concentration was similar among various time point in the non-cardiogenic shock group: 3.30(2.68, 7.44), 4.09(2.95, 7.18), 4.35(2.68, 8.22), 3.50(2.95, 8.00), 3.41(2.60, 5.97), 3.30(2.65, 5.42)and 3.94(2.82, 5.60) MUg/L, taken immediately after anesthesia, and at 4, 8, 16, 24, 48 and 72 hours after surgery respectively, and was 2.44(1.97, 2.67), 2.21(1.93, 2.83), 2.64(2.29, 2.67), 2.84(2.26, 2.94), 3.35(2.43, 4.05), 2.76(2.73, 2.97) and 3.81(2.96, 5.96)MUg/L respectively, in the cardiac shock group (all P>0.05). The serum thrombomodulin levels at 4 and 8 hours after surgery were higher in the non-cardiogenic shock group than cardiogenic shock group(all P<0.05). Conclusion: Compared with the non cardiogenic shock group, the peak serum thrombomodulin level appears later and recovers slower in cardiogenic shock patients who underwent off-pump coronary artery bypass grafting surgery. PMID- 29036978 TI - [Clinical features and surgical treatment effect of patients with cardiac cavernous hemangioma]. AB - Objective: To investigate the clinical features and surgical treatment effect of patients with cardiac cavernous hemangioma. Methods: Clinical data of 9 patients (5 male, aged from 4 to 53 years old) with cardiac cavernous hemangioma, who underwent surgical treatment from November 2002 to March 2015 and the diagnosis of cardiac cavernous hemangioma was confirmed by postoperative histological examination, were retrospectively analyzed. Effects of surgical treatment were analyzed. Results: Four patients were asymptomatic (heart murmur presented in 3 patients during physical examination). Three patients presented with palpitation, chest distress, and short of breath. One patient presented with epigastric discomfort and another patient presented with intermittent fever for more than 10 months. ST and T wave changes of electrocardiogram were found in 2 patients, cardiac mass was detected in the right heart chamber in 5 patients by echocardiography, and no cardiac mass was detected the rest 4 patients. Cardiac masses were resected en bloc, then the adjacent tissues were repaired in 7 patients, and mass was partially resected due to the involvement with adjacent heart structure. No cardiac mass was found during operation in 1 case, impaired mitral valve structure was excised and postoperative pathologically confirmed as cardiac valve cavernous angioma on the excised mitral valve structure. No signs of recurrence or enlargement of cardiac cavernous hemangioma were found during the 11(10, 11)years follow up. Conclusions: There is no specific clinical feature for patients with cardiac cavernous hemangioma. It is difficult to detect the cardiac valve cavernous angioma by echocardiography before surgery. Individualized surgical treatment is associated with good clinical outcome in this patient cohort. However, the clinical features and surgical treatment effect of patients with cardiac cavernous hemangioma still need to investigate in large sample trial. PMID- 29036979 TI - [Role of ash2 (absent, small, or homeotic)-like and Jumonji domain-containing protein 3 on histone methylation of interferon-gamma gene and their associations with vascular damage of Kawasaki disease]. AB - Objective: To investigate the impacts of ash2 (absent, small, or homeotic)-like (Ash2L) and Jumonji domain-containing protein 3 (Jmjd3) on histone methylation of interferon-gamma(IFN-gamma) gene and association with vascular damage of Kawasaki disease (KD) in acute phase. Methods: This study was performed among 36 children with KD in acute phase (KD group) and 28 age-matched health children (control group), who were treated or underwent physical examination in our hospital between February 2015 and June 2016. Patients were further divided into KD groups with or without coronary artery lesions (KD-CAL(+) , 16 cases; KD-CAL(-), 20 cases). All KD patients were treated with intravenous immunoglobulin. The proportion of type 1 helper T(Th1) cells and protein levels of IFN-gamma, T-box expressed in T cells(T-bet), phosphorylated signal transducer and activator of transcription 1(pSTAT1) and phosphorylated signal transducer and activator of transcription 4(pSTAT4) were analyzed by flow cytometry.Chromatin immunoprecipitation was performed to determine histone methylation (histone H3 tri-methyl K4(H3K4me3), histone H3 tri-methyl K27(H3K27me3)) and binding levels of Ash2L, Jmjd3 and Ezh2 associated with IFN-gamma in CD4(+) T cells. Quantitative real-time PCR was used to determine mRNA levels of IFN-gamma, interferon gamma receptor 1(IFN-gammaR1), interferon gamma receptor 2(IFN gammaR2), interleukin 12 receptor subunit beta 1(IL-12Rbeta1), interleukin 12 receptor subunit beta 2(IL-12Rbeta2), interleukin 18 receptor subunit beta alpha(IL-18Ralpha), interleukin 18 receptor subunit beta beta(IL-18Rbeta), tumor necrosis factor receptor 1(TNFR1), toll-like receptor 4(TLR4), receptor interacting serine/threonine kinase 1(RIP-1) and myeloid differentiation primary response gene 88(MyD88) in CD4(+) T cells. Plasma concentrations of IFN-gamma, interleukin 12(IL-12), interleukin 18(IL-18) and tumor necrosis factor alpha(TNF alpha) were measured by enzyme-linked Immunosorbent assay. Results: (1)The proportion of Th1 and its protein level of IFN-gamma were significantly higher in KD group than those in control group and higher in KD-CAL(+) group than in KD CAL(-) group (all P<0.05), and lower after treatment than before treatment (all P<0.05). (2)Compared with control group, mRNA level of IFN-gamma and IFN-gamma associating H3K4me3 was increased, while level of IFN-gamma associating H3K27me3 in CD4(+) T cells was reduced in KD group (all P<0.05), which resulted in a higher rate of H3K4me3/H3K27me3 (P<0.05) in KD group, which was positively correlated with IFN-gamma mRNA in KD group(r=0.55, P<0.05). Similar results were found between KD-CAL(+) group and KD-CAL(-) group (all P<0.05). Level of IFN gamma associating H3K27me3 was increased, and mRNA level of IFN-gamma and IFN gamma associating H3K4me3 was decreased after treatment than before treatment (all P<0.05). (3)Expression of T-bet protein and binding levels of Ash2L and Jmjd3 with IFN-gamma gene were significantly higher in KD group than those in control group(all P<0.05), higher in KD-CAL(+) group than those in KD-CAL(-) group (all P<0.05). These parameters were significantly lower after treatment than before treatment (all P<0.05). Binding level of Ezh2 with IFN-gamma gene was similar among various groups (all P>0.05). (4)In comparison with control or after treatment, surface receptors(IFN-gammaR1/2, IL-12Rbeta1/2, IL-18Ralpha/beta, TNFR1 and TLR4) and its downstream molecules(pSTAT1, pSTAT4, RIP(1) and MyD88) in CD4(+) T cells, and plasma concentrations of inflammatory cytokines(IFN-gamma, IL 12, IL-18 and TNF-alpha) were found to be higher in KD group(all P<0.05). These parameters were also higher in KD-CAL(+) group than in KD-CAL(-) group (all P<0.05). Conclusion: Aberrant histone methylation of IFN-gamma associating H3K4me3 and H3K27me3 caused by over-binding of Ash2L and Jmjd3 might be involved in immune dysfunction and vascular damage in KD in the acute phase. PMID- 29036981 TI - [A case of Takotsubo syndrome]. PMID- 29036980 TI - [CD137 induces vascular muscle cells phenotype transformation through activating nuclear factor of activated T-cells 1 signaling]. AB - Objective: To investigate whether CD137 induces primary vascular muscle cells (VSMCs) phenotype transformation through activating nuclear factor of activated T cells 1(NFATc1) signaling. Methods: VSMCs were obtained from aorta of C57BL/6J mice (8 weeks, male) through tissue-piece inoculating. Cells were divided into control group, CD137 agonist group (treated with CD137L recombinant protein) and anti-CD137 group (treated with anti-CD137 antibody). In si-RNA transfection assay, cells were divided into si-control group and si-NFATc1 group which were transfected with control or si-NFATc1 sequence respectively. The levels of NFATc1 and other phenotype related protein such as alpha-smooth muscle actin (alpha SMA), smooth muscle myosin heavy chain (SM-MHC), vimentin were detected by Q-PCR and Western blot. Nuclear protein expression and activity of NFATc1 were detected by immunofluorescence and Western blot. Transwell assay was performed to measure the migration of VSMCs. Results: According to Western blot, the expression of NFATc1 and vimentin was significantly upregulated (5.07+/-0.36 vs. 1.00+/-0.00, P<0.05; 3.23+/-0.27 vs. 1.00+/-0.00, P<0.05) while alpha-SMA and SM-MHC expressions was significantly downregulated (0.73+/-0.15 vs. 1.00+/-0.00, P<0.05; 0.45+/-0.05 vs. 1.00+/-0.00, P<0.05) in CD137 agonist group compare to control group. Compared with CD137 agonist group, the expression of NFATc1 and vimentin was significantly downregulated (1.56+/-0.27 vs. 5.07+/-0.36, P<0.05; 1.21+/-0.17 vs. 3.23+/-0.27, P<0.05), but the levels of alpha-SMA and SM-MHC were significantly upregulated (2.01+/-0.43 vs. 0.73+/-0.15, P<0.05; 2.85 +/-0.32 vs. 0.45+/-0.05, P<0.05) in anti-CD137 group. Compared with si-con group, the expression of SM-MHC and alpha-SMA was significantly upregulated while the expression of vimentin was significantly downregulated in si-NFATc1 group. Transwell assay results demonstrated that migration cell numbers was significantly higher in CD137L group compared with control group(3.85+/-0.31 vs. 1.00+/-0.00, P<0.05), this effect was significantly attenuated by inhibiting NFATc1. Conclusion: CD137 could induce VSMC phenotype transformation through activating NFATc1 signaling. PMID- 29036982 TI - [Research advances on the relationship between nitrate-nitrite-NO pathway and heart failure with preserved ejection fraction]. PMID- 29036983 TI - [Research progress on the treatment of pulmonary arterial hypertension with treprostinil]. PMID- 29036984 TI - [Depression and cardiovascular disease]. PMID- 29036985 TI - [Cardiac troponin I-interacting kinase: a new intervention target for ventricular remodeling]. PMID- 29036986 TI - [Antimicrobial resistance spread and genes transfer]. PMID- 29036987 TI - ["Internet+"dietary assessment becomes the innovative technology of nutrition work]. PMID- 29036988 TI - [Characteristics of molecular typing and drug resistance of 67 Salmonella paratyphi A isolated in Zhengzhou from 2013 to 2015]. AB - Objective: To investigate the antimicrobial resistance and pulsed field gel electrophoresis (PFGE) patterns of S.paratyphi A strains in Zhengzhou city isolated from sentinel hospitals in 2013-2015. Methods: According to Salmonella molecular typing and K-B drug susceptibility testing method published by international PulseNet bacterial infectious disease monitoring network and USA Clinical and Laboratory Standards Institute (CLSI2015), we analyzed drug sensitivity and PFGE molecular characteristics of 67 S.paratyphi A strains(11 strains in 2013, 7 strains in 2014, 49 strains in 2015) isolated from blood and stool samples in two sentinel hospitals of fever with rash syndrome surveillance system established in Zhengzhou city in 2013-2015. Results: The results showed 67 strains of S.paratyphi A had different levels of resistance to 13 kinds of antibiotics, 65 strains were multi-drug resistant strains (97.0%), 5 isolates were resistant to 2-3 kinds of antibiotics (7.5%), 41 isolates were resistant to 5-8 kinds of antibiotics (61.2%),11 isolates were resistant to 9-10 kinds of antibiotics(16.4%),8 isolates were resistant to 11-12 kinds of antibiotics(11.9%). 67 strains of S.paratyphi A were divided into 10 molecular patterns(PTYA1-PTYA10) by digestion with XbaI restriction endonuclease and pulsed field gel electrophoresis, each pattern contains 1-48 strains with similarity ranged from 94.31%-100%. PTYA3 contained 48 strains, which was predominant band type; PTYA1, 9 contained 6 strains; PTYA 2, 4, 5, 6, 7, 8, 10 contained 1 strains among them. Conclusion: The status of drug resistance of clinical isolates of S.paratyphi A in Zhengzhou city was rather serious, PFGE patterns showed diversity and dominant characteristics. The PFGE patterns of partial strains and its corresponding anti-drug spectrum have certain relevance and cluster relationship. PMID- 29036989 TI - [Dissemination of insertion sequence common regions 1 and int1 gene and drug resistance of 483 Escherichia coli and Klebsiella pneumonia broiler isolates]. AB - Objective: To investigate and analyze distribution characteristics of two multidrug resistance related genes in broiler isolates in Shandong province. Methods: The pre slaughter broilers were chosen from Shandong province in this study in June, 2014. A total of 400 fecal samples from five different zones (east, south, west, north and middle) of the hen house were collected. 373(77.2%) Escherichia coli and 110 (22.8%) Klebsiella pneumonia strains were isolated, and ISCR1 and int1 gene were detected by PCR assay and sequencing. The resistance to 10 drugs belonging to 8 classes antimicrobial drugs were obtained by using minimal broth dilution method and data analysis. The difference between isolates and drug resistance profiles was analyzed. Results: Among 483 isolates, 440 isolates (91.1%), 126 isolates (26.1%) and 126 isolates (26.1%) were detected as int1, ISCR1 and both two gene carriers, respectively. The rate of 37 E. coli isolates not carried ISCR1 or int1 gene resistant to 0 to 2, 3 to 5, 6 to 8 classes antimicrobial agents was 13.5% (n=5), 78.4% (n=29), and 8.1% (n=3), respectively; the rate of 288 only int1 gene E. coli carriers resistant to 0 to 2, 3 to 5, 6 to 8 groups antimicrobial agents was 2.4% (n=7), 74.7% (n=215), and 22.9% (n=6), respectively. The data above showed significant difference (P<0.001). The rate of 26 only int1 gene K. pneumonia carriers resistant to 0 to 2, 3 to 5, 6 to 8 classes antimicrobial agents was 11.5% (n=3), 76.9% (n=20), and 11.5% (n=3), respectively; the rate of 78 both two gene K. pneumonia carriers resistant to0 to 2, 3 to 5, 6 to 8 groups antimicrobial agents was 0, 35.9% (n=28), and 64.1% (n=50), respectively. The data above showed significant difference (P<0.001). Conclusion: Gene int1 and ISCR1 showed high prevalence in E. coli and K. pneumonia isolates. High level multi-drug resistance profile could be mediated by int1 and ISCR1 gene co-existence. PMID- 29036990 TI - [Drug resistance and dissemination of New Delhi metallo-beta-lactamase 1 positive bacteria in a patient]. AB - Objective: The aim of this work was to report the surveillance and dissemination of NDM-1 positive bacteria in a patient and ward environment. Methods: In 2010, during the therapy for a 51 years old patient, clinical and environmental samples were collected for carbapenem resistant bacterial culture, according to the clinical microbiological examination. Strains identification and antibiotic susceptibility were tested by VITEK Compact 2 system and E-test. The bla(NDM-1) was detected by PCR and analyzed by sequencing. Plasmids containing bla(NDM-1) were submitted to PFGE-S1 and Southern hybridization. Results: During hospitalization from October 1st to November 4th, nine strains were isolated from blood, sputum, urine, fecal, and ward ground samples. The Klebsiella oxytoca, Raoultella planticola, and Acinetobacter baumannii were isolated from blood sample. The Klebsiella pneumonia and Acinetobacter baumannii were isolated from sputum sample. An Acinetobacter lwoffii was isolated from urine sample. An Escherichia coli was isolated from fecal sample. And the Acinetobacter lwoffii and Acinetobacter spp. were isolated from ward ground. Four strains were NDM-1 positive, which were Raoultella planticola (RpNDM1) isolated from blood, Escherichia coli (EcNDM1) isolated from fecal, Acinetobacter lwoffii (AlDNM1) and Acinetobacter spp. (AsNDM1) isolated from ward ground. Four NDM-1 positive strains were resistant to Piperacillin, Piperacillin tazobactam, Cefepime, Ceftriaxone, Ceftazidime, Imipenem, Meropenem, and Ertapenem. Southern hybridization revealed that bla(NDM-1) were all located on plasmids in the four positive strains. Conclusion:bla(NDM-1) can transfer rapidly among different species, resulting in difficult to control and prevent. While isolating patient who is carrying NDM-1 positive strains, more attention should be paid to the disposal of patient's excreta, especially stool, should be paid more attention. PMID- 29036991 TI - [Molecular epidemiology of carbapenem resistant Klebsiella pneumoniae in a hospital in Beijing]. AB - Objective: To reveal the molecular epidemiological characteristics of Carbapenem Resistant Klebsiella pneumoniae (CRKP) isolated from a three level teaching hospital in Beijing. Methods: Pulsed field gel electrophoresis (PFGE) was carried out to subtyping 375 CRKP isolated in that hospital between May 2010 and October 2015. Fifteen strains were chose based on the PFGE patterns to be analyzed by multi-locus sequence typing (MLST) and detection of carbapenem-resistance genes. One strain (A1502) was selected for whole genome sequencing and analyzing. Results: The 375 CRKP were divided into 140 PFGE types, among which five types contained more than five strains. The dominant types were distributed in different time periods and wards. Among the 15 strains tested by MLST and carbapenem-resistance genes detection, 13 were ST11 strains carrying KPC-2 gene. By genome-based typing, A1502 was clustered together with strains from other hospitals of Beijing but far from the strains from Shanghai and Hangzhou. Conclusion: The CRKP epidemic clone (ST11 clone carrying KPC-2) has been spreading within single hospital and across different hospitals in Beijing. PMID- 29036992 TI - [Survey on burden of disease attributable to low fruit intake among Chinese people aged 15 years old and above between 1990 and 2013]. AB - Objective: To analyze the burden of disease attributable to low fruit intake among Chinese population aged >=15 years old between 1990 and 2013. Methods: We used data from the 2013 Global Burden of Disease Burden of Disease Study to study the situation in China. The population attributable fraction was calculated to estimate and compare the death and disability-adjusted life years (DALY) attributed to low fruit intake between 1990 and 2013 in China (excluded Taiwan, China). An average world population age structure of the period 2000-2025 was adopted to calculate age-standardized rates. Results: Deaths attributable to low fruit intake accounted for 11.02% of all death in 2013, which were higher than it in 1990 (10.38%). In 2013, the number of deaths attributed to low fruit intake in China increased to 1 046 500 from 793 800 in 1990. From 1990-2013, the age standardized death rate attributable to low fruit intake decreased from 113.04/100 000 to 79.80/100 000. DALYs caused by low fruit intake increased from 18.346 5 million in 1990 to 21.296 7 million in 2013. Compared with 1990, the age standardized DALY rate attributed to low fruit intake decreased by 34.67%. In 2013, the top three provinces with the highest burden of disease attributed to low fruits intake were Tibet, Guizhou and Xinjiang provinces, with standardized DALY rate at 2 612.53/100 000, 2 281.85/100 000 and 2 198.22/100 000, respectively. Compared with the results in 1990, the standardized DALY attributed to low fruits intake decreased, especially in Tianjin, where decreased by 63.61%; followed by Aomen, Zhejiang, Shanghai and Beijing, where decreased by 59.74%, 59.53%, 56.64% and 53.88%, respectively. Conclusion: Compared with the situation in 1990, the burden of disease attributable to low fruit intake decreased in 2013, but the situation is still serious, especially in Tibet, Guizhou and Xinjiang provinces, where the burden decreased comparatively slowly. PMID- 29036993 TI - [Study on the disease burden of Chinese adolescent in 2015]. AB - Objective: To discuss the main causes and risk factors of disability and death among current Chinese adolescents. Methods: Subnational data of China from Global Burden of Disease Study 2015 (GBD 2015) was used to rank the causes and risk factors leading to death and disability adjusted life years (DALY) in Chinese adolescents aged between 10 and 19 years old, and thereby to analyze the main cauese and risk factors of death and DALY among Chinese adolescents in different genders. Results: In 2015, among Chinese adolescents aged 10-19 years old, the total DALY was 13 million 490 thousand years, and the total number of deaths was 63 258 cases. The top 3 causes of DALY were skin and subcutaneous diseases, iron deficiency anemia and road injuries, resulting in DALY (constituent ratio) of 1 411 (10.5%), 1 094 (8.1%) and 1 029 (7.6%) thousand years respectively. The top 3 causes of death were road injuries, drowning and leukemia, causing 13 881 (21.9%), 9 895 (15.6%) and 4 620 (7.3%) deaths (constituent ratio) respectively. The top 3 risk factors of DALY were iron deficiency, alcohol use and drug use, causing 1 094 (8.1%), 487 (3.6%) and 220 thousand years (1.6%) DALY (constituent ratio) respectively. The top 3 risk factors of death were alcohol use, occupational injuries and drug use, causing 5 957 (9.4%), 1 523 (2.4%) and 810 (1.3%) deaths respectively. Conclusion: Unintentional injury was the top cause of DALY and death in Chinese adolescents, followed by skin and subcutaneous diseases and iron-deficiency anemia. Iron deficiency and alcohol use were the top two risk factors of DALY and death. PMID- 29036994 TI - [Trend analysis of the burden of ischemic heart disease in China, 1990 to 2015]. AB - Objective: The objective of this study is to analyze the trend of burden of ischemic heart disease (IHD) in China between 1990 and 2015. Methods: Data were collected from the results of 2015 Global Burden of Disease Study. We arranged and analyzed the mortality and disability-adjusted life year (DALY) for IHD by sexes, ages and provinces (excluding Taiwan, China) in China between 1990 and 2015. The age-standardized rates were determined using the average world population age structure in the period of 2010-2035 as a reference, and the changes of the related indicators were calculated. Results: In 2015, IHD caused 1 461 thousand deaths, and its age-standardized death rate was 114.8 per 100 000. Number of DALYs from IHD were 25 765 thousand in 2015, with the age-standardized DALY rate at 1 760.2 per 100 000. From 1990 to 2015, the age-standardized death rate for IHD in China increased by 13.3% but age-standardized DALY rate decreased by 3.9%. Number of IHD DALYs among male (16 664 thousand) was higher than it among female (9 101 thousand) in China in 2015, and 83.5% of total DALYs from IHD occurred among people aged over 50 years old. Province with highest age standardized death rate was Heilongjiang, with rate at 187.4 per 100 000 in 2015. Qinghai (54.0%) increased most and Macao (-52.3%) decreased most from 1990 to 2015. Province with highest age-standardized DALY rate was Xinjiang, with rate at 3 040.8 per 100 000 in 2015. Qinghai (33.2%) increased most while Macao (-59.0%) decreased most between 1990 and 2015. Conclusion: Burden of IHD in China increased remarkably from 1990 to 2015, especially among males and people aged over 50 years old. The differences among provinces were obvious. PMID- 29036995 TI - [Association of alcohol use and incidence of type 2 diabetes mellitus in the middle-aged and elderly male population: a prospective cohort study]. AB - Objective: To investigate the association between alcohol use and incidence of type 2 diabetes mellitus (T2DM) in the middle-aged and elderly male population. Methods: All participants were from Dongfeng-Tongji cohort, 27 009 retired employees from Dongfeng Motor Corporation in Hubei Province were enrolled in the Dongfeng-Tongji cohort baseline survey in 2008. In baseline study, information of alcohol use and other covariates were collected by semi-structured questionnaire and all participants completed physical examination including the test of fasting glucose and blood lipid levels. A total of 6 784 male participants from Dongfeng Tongji cohort who were without diagnosis of diabetes, coronary heart disease, stroke, or cancer in baseline study were enrolled in this study. We completed the first follow-up in 2013 and the outcome of disease or death was retrieved based on health-care medical records according to the unique medical insurance ID. Cox proportional hazard regression model was used to estimate the association between alcohol use and incidence of type 2 diabetes mellitus (T2DM), by drinking features and patterns. Results: Out of the 6 784 participants, 3 541 participant were defined as non-alcohol drinkers and there were 15 852.2 person-years of follow-up; among which 270 new cases of T2DM were diagnosed withthe crude incidence density of non-alcohol drinkers at 1 703.2/100 000 person-years. The other 3 243 subjects were classified as alcohol drinkers and there were 14 509.8 person-years of follow-up; and among which 258 new cases of T2DM were diagnosed, with the crude incidence density of T2DM at 1 778.1/100 000 person-years. Multivariate COX proportional hazard regression model indicated that there was no significantly increased risk of T2DM incidence between alcohol drinkers and non alcohol drinkers(HR(95% CI): 1.09 (0.91- 1.30)). However, participants who averagely consumed >20 g/d or>7 times/week had a significantly increased risk of T2DM compared with non-alcohol drinkers, and the value of HR(95%CI) was 1.27 (1.02- 1.58) and 1.35 (1.00- 1.83), respectively. Among men who consumed alcoholic beverages more than 7 times/week, HR (95%CI) for T2DM incidence in the subjects who consumed 0.01 to 40 g and > 40 g once a time were 1.48 (1.05- 2.09) and 1.27 (0.80- 2.10), respectively. Conclusion: Although we found no relationship between alcohol use and T2DM incidence overall, alcohol use more than 20 g/d or more than 7 times/week would increase the risk of T2DM. PMID- 29036996 TI - [Analysis of prevalence and related factors of osteoporosis in retired population based on Dongfeng-Tongji Cohort]. AB - Objective: To investigate the prevalence and related factors of osteoporosis among retired population in Dongfeng-Tongji cohort. Methods: 27 009 retired participants were recruited from Dongfeng Motor Corporation in Hubei Province in 2008 and followed up from April to October in 2013. newly retired participants also were recruited. Data were collected by using questionnaire, physical examination, serum hepatase detection and bone densitometry. Totally, 30 916 participants were included for data analysis after excluding participants with severe bone metabolic diseases, taking hormone drugs, incomplete follow-up data and who were under 45 years old. Age-standardized prevalence of osteoporosis was calculated according to data of the 2010 Sixth National Population Census. Multivariate logistic regression analysis was applied to explore the associated factors of osteoporosis. Results: Prevalence of osteoporosis was 42.3% (13 083/30 916) and age standardized prevalence was 40.7%: 35.0% (4 854/13 878) and 34.8% for males; 48.3% (8 229/17 038) and 47.1% for females. Significantly associated factors with osteoporosis for both males and females included: older age (male: OR=1.67, 95%CI: 1.40-1.99; female:OR=3.34, 95%CI: 2.70-4.13), lower BMI (male: OR=1.70, 95%CI: 1.40-2.06; female: OR=1.27, 95%CI: 1.04-1.53), exercise (male: OR=0.69, 95%CI: 0.61-0.78; female: OR=0.87, 95%CI: 0.80-0.96), abnormal elevated serum alkaline phosphatase (ALP) (male: OR=1.12, 95%CI: 1.01-1.24; female: OR=1.15, 95%CI: 1.06-1.25), gamma-glutamyltransferase (gamma-GT) (male: OR=1.16, 95%CI: 1.02-1.30; female: OR=1.13, 95%CI: 1.03-1.24) and aspartate transaminase/alanine aminotransferase (AST/ALT) (male: OR=1.15, 95%CI: 1.05-1.25; female: OR=1.28, 95%CI: 1.19-1.38). Smoking (OR=1.27, 95%CI: 1.07-1.39) and drinking (OR=1.11, 95%CI: 1.08-1.16) were associated factors for males while menopausal (OR=1.67, 95%CI: 1.47-1.89) for females. There were positive dose response correlation relationships of serum levels of ALP, gamma-GT and AST/ALT with osteoporosis (all P values<0.05). Conclusion: Osteoporosis was relatively common among retired population in Dongfeng-Tongji cohort. In addition to known factors such as older age, lower BMI and exercise, abnormal elevated serum ALP, gamma-GT and AST/ALT were also associated with osteoporosis. PMID- 29036997 TI - [Mean blood pressure among the adults in China 2010-2012: based on the results of mercury sphygmomanometer and converted electronic sphygmomanometer]. AB - Objective: To analyze the average systolic blood pressure (SBP) and diastolic blood pressure (DBP) among adults aged 18 years old and above in China between 2010 and 2012; and to compare the difference in the results measured by mercury sphygmomanometer and converted electronic sphygmomanometer. Methods: The data was collected from Chinese Nutrition and Health Surveillance in 2010-2012. 120 428 adults aged 18 years old and above were selected from 150 survey counties (districts) of 31 provinces in China Mainland, by multi-stage stratified and probability proportion to size (PPS) cluster randomization sampling method. The average blood pressure value was calculated from three systolic and diastolic blood pressure readings measured by mercury sphygmomanometer. The value of Electronic Sphygmomanometer was converted by regression formula. Age-standardized results were calculated incorporating a complex sample weighting using the population data from the National Bureau of Statistics in 2009. Results: The overall adjusted mean of SBP based on the value of mercury sphygmomanometer among Chinese adults aged 18 years old and above was 122 mmHg (1 mmHg=0.133 kPa), 124 mmHg in men and 120 mmHg in women. The average SBP value was separately 115, 127, and 137 mmHg in groups of adults aging 18-44, 45-59 and >=60 years old. The average SBP was 122 mmHg in urban and 122 mmHg in rural areas. Mean DBP was 78 mmHg, 79 mmHg in men and 76 mmHg in women. The average DBP was separately 75, 81, and 81 mmHg in groups of adults aging 18-44, 45-59 and >=60 years old. The average DBP was 78 mmHg in urban and 77 mmHg in rural areas. The overall adjusted mean of SBP based on converted electronic device was 129 mmHg,130 mmHg in men and 127 mmHg in women, respectively. The mean of SBP was separately122, 134, and 143 mmHg in groups of adults aging 18-44, 45-59 and >=60 years old. Mean SBP was both 129 mmHg in urban and in rural areas. Mean DBP was 76 mmHg, 78 mmHg in men and 75 mmHg in women, respectively. The average DBP was separately 74, 79, and 79 mmHg in groups of adults aging 18-44, 45-59 and >=60 years old. The average DBP was both 76 mmHg in urban and rural areas. Conclusion: The average SBP and DBP was different between the mercury sphygmomanometer and converted electronic device. However, the results from both measures showed that the blood pressure was higher in men than in women, the blood pressure increased with the increase of age, and there was no difference between urban and rural areas. PMID- 29036998 TI - [Association between polymorphism of rs10185316 in insulin-induced gene 2 and blood pressure among children and adolescents]. AB - Objective: To examine the association between polymorphism of rs10185316 in insulin-induced gene 2 (INSIG2) and blood pressure among children and adolescents. Methods: 9 junior middle schools in Dongcheng District of Beijing and 5 schools (3 primary junior middle schools, 2 primary schools) in Haidian District of Beijing were chosen in 2005 and 2007, respectively. According to the Chinese BMI percentile criteria for screening overweight and obesity in school children, we recruited 1 425 overweight or obese children and 605 normal weight children. A total of 2 018 students with complete data of blood pressure and genotype data were included in this study. According to the blood pressure criterion of children and adolescents, 702 participants were categorized into high blood pressure group and 1 316 into normal blood pressure group. Participants' information of gender, age, height, weight and blood pressure were collected by questionnaire and physical examination. Genomic DNA was extracted from peripheral blood sample for genotyping of INSIG2 rs10185316 polymorphism. Multiple linear regression was conducted to analyze the associations between rs10185316 polymorphism in INSIG2 and SBP, DBP, mean arterial pressure (MAP) and pulse pressure. Results: The age, BMI, SBP and DBP of the high blood pressure group were separately (14.3+/-1.4) years old, (27.3+/-4.2) kg/m(2), (130.5+/ 10.9) and (76.7+/-13.3) mmHg (1 mmHg=0.133 kPa), all higher than that of the normal blood pressure group, which were (12.2+/-2.9) years old, (22.0+/-4.0) kg/m(2), (104.4+/-10.9) and(54.6+/-15.2) mmHg, respectively (all P values<0.001). After age, sex, district and BMI adjusted, compared with the participants carrying INSIG2 rs10185316 CC genotype, CG/GG genotype carriers had lower DBP (beta(95%CI):-1.67(-2.84--0.50), P=0.005), higher PP(beta(95%CI): 1.91(0.61 3.20), P=0.004), and lower MAP(beta(95%CI):=-1.03(-2.01--0.05), P=0.039). Conclusion: INSIG2 rs10185316 polymorphism was associated with DBP, PP and MAP among children and adolescents in an independent way from BMI. PMID- 29036999 TI - [The contamination and dietary exposure analysis for seven mycotoxins in the Fifth Chinese Total Diet Study]. AB - Objective: To investigate the contamination levels and dietary intakes of seven mycotoxins in Chinese diets. Methods: In Chinese Total Diet Study, food aggregation was based on the food consumption of local residents, thus generating the sampling scheme. According to the sampling scheme, the food items were sampled at three survey points in each province and then mixed in the same proportion. The mixed dietary samples were prepared after being cooked and processed. The samples comprised of 13 categories of food: cereals, beans, potatoes, meat, eggs, aquatic products, milk, vegetables, fruits, saccharides, beverages and drinking water, alcohol, and condiments. Condiments were used in cooking, so there were in total 12 varieties of samples for determination. Altogether, the study included 240 mixed dietary samples from 20 provinces with 12 varieties. The contamination levels of the seven mycotoxins, including sterigmatocystin (SMC), citrinin (CIT), cyclopiazonic acid (CPA), moniliformin (MON), gliotoxin (GLIO), mycophenolateacid (MPA) and verruculogen (Verru), were analyzed by UPLC-MS/MS method, and dietary intakes of residents were estimated as well. Results: Among the detected seven mycotoxins, MPA,GLIO and Verru were not detected. The content range of CPA in beans was 0.47-1.57 MUg/kg and in alcohol was 0.19-2.26 MUg/kg, and the detection rate of CPA was 7.1% (17/240). The content of SMC in aquatic products of Guangxi, in saccharides of Beijing, and in beverages of Liaoning was 2.88 MUg/kg, 0.01 MUg/kg, and 0.53 MUg/kg, respectively. The content range of SMC in aquatic products was 0.70-1.76 MUg/kg, and the detection rate was 2.9% (7/240). In addition, the content of CIT in fruit of Sichuan was 5.31 MUg/kg, and the content of MON in milk of Jilin was 3.60 MUg/kg. According to the dietary exposure analysis, the exposure levels of the seven mycotoxins in China's general population were low. MPA, GLIO and Verru were not detected, and the exposure range of the other four mycotoxins were 0.000 8.132 (CIT), 0.000-27.448 (SMC), 0.000-3.026 (CPA), and 0.000-62.847 ng.kg(-1).d( 1) (MON), respectively. Conclusion: In the detected seven mycotoxins, CPA, SMC, CIT and MON were detected only in the individual diet in some areas with a low dietary exposure level. However, the contamination level of CPA in alcohol merits attention. PMID- 29037000 TI - [Analysis of fipronil and metabolites residues distrubution in eggs]. AB - Objective: To compare the residual distribution of fipronil and its metabolites in white and yellow egg, and to analyze the residual changes of fipronil and its metabolites in raw and cooked samples, regarding the risk assessment of fipronil and its metabolites via consuming egg for different age groups. Methods: The white egg and yellow egg were isolated from 10 egg samples containing fipronil residues. Samples were extracted with acetonitrile and purified, and determined by liquid chromatography-high resolution mass spectrometry. The chromatographic analysis was performed on a BEH C(18) column with 0.1% acetic acid and acetonitrile as mobile phase with gradient elution, and external standard calibration was used for quantification. The negative ion acquisition mode was applied and quantitative analysis was carried out by using Full Scan/ddms2 model. Results: The results showed that fipronil sulfone was the main residue detected in eggs; The content of fipronil sulfone in white egg was between 2.5 and 59.9 MUg/kg, the median was 16.1 MUg/kg; and the content of fipronil sulfone in yellow egg ranged from 81.5 and 1 526.0 MUg/kg, with a median of 390.0 MUg/kg. The ratio of fipronil sulfone in yellow egg to white egg ranged from 8.0 and 14.6. Compared with that observed in fresh egg, after heating or cooking, the content ratio of fipronil sulfone residue between cooked samples and raw samples from yellow egg was between 0.80 and 0.96, the median was 0.90; and the ratio from white egg ranged from 0.65 to 1.06, the median was 0.83. The conversion coefficient of fipronil sulfone (f) between white egg and yellow egg was 3.1. Conclusion: Yellow egg is a major intake source of fipronil and metabolites residues, and there is no obvious change for fipronil sulfone residue in eggs after heating or cooking. The conversion coefficient of fipronil sulfone (f) between white egg and yellow egg lays the foundation for assessing the health risks of fipronil and metabolites residues through yellow egg intake in special population. PMID- 29037001 TI - [Analysis of the characteristics and HIV/syphilis/HCV infection among new narcotic users in Beijing, 2010-2016]. PMID- 29037002 TI - [The usage guidance of blood pressure reference in the fourth report on the diagnosis, evaluation, and treatment of high blood pressure in children and it's SPSS program]. PMID- 29037003 TI - Effects of Temperature and Pressure on Acute Stroke Incidence Assessed Using a Korean Nationwide Insurance Database. AB - BACKGROUND AND PURPOSE: Many studies have evaluated the association between weather and stroke, with variable conclusions. Herein we determined the relationships between daily meteorological parameters and acute stroke incidence in South Korea. METHODS: Patients with acute stroke (2,894) were identified by standard sampling of a nationwide insurance claims database from January to December 2011. We used multiple Poisson regression analyses of stroke incidence and meteorological parameters (mean temperature, diurnal temperature change, temperature differences over the preceding 24 hours, atmospheric pressure, humidity, wind speed, and physiologically equivalent temperature) to calculate the relative risk of stroke incidence associated with meteorological parameters. RESULTS: There were no seasonal variations in the incidences of ischemic (2,176) or hemorrhagic (718) stroke. Temperature change during the day was positively correlated with ischemic stroke in men (relative risk [RR] 1.027; 95% confidence interval [CI] 1.006-1.05) and older patients (>=65 years) (RR 1.031, 95% CI 1.011 1.052). Temperature differences over the preceding 24 hours had a negative correlation with all strokes (RR 0.968, 95% CI 0.941-0.996), especially among older women. Diurnal variation of atmospheric pressure was also significantly associated with the incidence of ischemic stroke (age<65 years, RR 1.051, 95% CI 1.011-1.092; age>=65 years, RR 0.966, 95% CI 0.936-0.997). CONCLUSIONS: Diurnal temperature change, temperature differences over the preceding 24 hours, and diurnal variation of atmospheric pressure were associated with daily stroke incidence. These findings may enhance our understanding of the relationship between stroke and weather. PMID- 29037004 TI - Association of Systolic Blood Pressure with Progression of Symptomatic Intracranial Atherosclerotic Stenosis. AB - BACKGROUND AND PURPOSE: Elevated blood pressure (BP) is associated with greater severity of intracranial atherosclerotic stenosis (ICAS) and increased risk of ischemic stroke. Because little is known about the relationship of maintained BP level with progression of symptomatic ICAS (sICAS), we evaluated the independent association of maintained systolic BP (SBP) with risk of sICAS progression. METHODS: We analyzed the Trial of cilOstazol in Symptomatic intracranial Stenosis 2, which evaluated 402 stroke patients with sICAS (mean age, 64.5+/-11.3 years; male, 52.2%). Study participants were categorized into four groups according to mean SBP level: low-normal (<120 mm Hg), normal to high-normal (120 to 139 mm Hg), high (140 to 159 mm Hg), and very-high (>=160 mm Hg). Progression of sICAS was defined as worsening in the degree of stenosis by >=1 grade on the 7-month magnetic resonance angiography follow-up. RESULTS: sICAS progression was observed in 52 (12.9%) subjects. Percentages of sICAS progression by mean SBP category showed a J-shape pattern: low-normal (21.4%), normal to high-normal (10.7%), high (11.4%), and very-high (38.9%). In multivariable analysis, compared to the normal to high-normal SBP group, odds ratios (95% confidence intervals) were low-normal, 1.88 (0.62-5.67); high, 1.06 (0.47-2.37); and very-high, 8.75 (2.57-29.86). Rate of sICAS progression by 10-mm Hg strata showed a similar pattern to findings from mean SBP category (9.47; 2.58-34.73 for SBP >=160 mm Hg). CONCLUSIONS: Among individuals with a recent ICAS stroke, very-high SBP level during the short-term period after the index stroke was associated with significantly greater odds of sICAS progression. PMID- 29037005 TI - Stroke Epidemiology in South, East, and South-East Asia: A Review. AB - Asia, which holds 60% of the world's population, comprises some developing countries which are in economic transition. This paper reviews the epidemiology of stroke in South, East and South-East Asia. Data on the epidemiology of stroke in South, East, and South-East Asia were derived from the Global Burden of Disease study (mortality, disability-adjusted life-years [DALYs] lost because of stroke), World Health Organization (vascular risk factors in the community), and publications in PubMed (incidence, prevalence, subtypes, vascular risk factors among hospitalized stroke patients). Age- and sex-standardized mortality is the lowest in Japan, and highest in Mongolia. Community-based incidence data of only a few countries are available, with the lowest rates being observed in Malaysia, and the highest in Japan and Taiwan. The availability of prevalence data is higher than incidence data, but different study methods were used for case finding, with different age bands. For DALYs, Japan has the lowest rates, and Mongolia the highest. For community, a high prevalence of hypertension is seen in Mongolia and Pakistan; diabetes mellitus in Papua New Guinea, Pakistan, and Mongolia; hypercholesterolemia in Japan, Singapore, and Brunei; inactivity in Malaysia; obesity in Brunei, Papua New Guinea, and Mongolia; tobacco smoking in Indonesia. Hypertension is the most frequent risk factor, followed by diabetes mellitus and smoking. Ischemic stroke occurs more frequently than hemorrhagic stroke, and subarachnoid hemorrhages are uncommon. There are variations in the stroke epidemiology between countries in South, East, and South-East Asia. Further research on stroke burden is required. PMID- 29037007 TI - Small Vessel Transient Ischemic Attack and Lacunar Infarction Detected with Perfusion-Weighted MRI. PMID- 29037006 TI - MicroRNA 150-5p Improves Risk Classification for Mortality within 90 Days after Acute Ischemic Stroke. AB - BACKGROUND AND PURPOSE: Micro ribonucleic acid-150-5p (miR-150-5p) regulates proinflammatory cytokines as well as vessel integrity. We evaluated the incremental prognostic value of logarithm (log) of miR-150-5p plasma levels after ischemic stroke. METHODS: In a prospective cohort study, levels of miR-150-5p were measured within 72 hours of symptom onset in 329 ischemic stroke patients. The outcome measures were unfavorable functional outcome (assessed by the modified Rankin Scale score >2) and mortality within 90 days. Logistic regression and Cox proportional hazards models were fitted to estimate odds ratio (OR), respectively hazard ratio (HR) and 95% confidence interval (CI) for the association between log-miR-150-5p and the outcome measures. The discriminatory accuracy was assessed with the area under the receiver-operating-characteristic curve (AUC) and the incremental prognostic value was estimated with the net reclassification index. RESULTS: After adjusting for demographic and vascular risk factors, lower log-miR-150-5p levels were independently associated with mortality (HR 0.21 [95% CI, 0.08-0.51], P=0.001) but not functional outcome (OR 1.10 [95% CI, 0.54-2.25], P=0.79). Adding log-miR-150-5p improved the discriminatory accuracy of the best multivariate model to predict mortality from an AUC of 0.91 (95% CI, 0.88-0.95) to 0.92 (95% CI, 0.88-0.96 Likelihood-ratio test-P<0.001), and resulted in a net reclassification index of 37.3% (95% CI, 0.28-0.52). CONCLUSIONS: In patients with ischemic stroke, log-miR-150-5p is a novel prognostic biomarker, highly associated with mortality within 90 days, improving risk classification beyond traditional risk factors. PMID- 29037008 TI - Histopathological Findings of Intracranial Thrombi in Nonbacterial Thrombotic Endocarditis. PMID- 29037009 TI - Early Statins after Intravenous or Endovascular Recanalization Is Beneficial Regardless of Timing, Intensity, and Stroke Mechanism. PMID- 29037010 TI - Effects of Triflusal and Clopidogrel on the Secondary Prevention of Stroke Based on Cytochrome P450 2C19 Genotyping. AB - BACKGROUND AND PURPOSE: To compare the efficacy and safety of antiplatelet agents for the secondary prevention of ischemic stroke based on cytochrome P450 2C19 (CYP2C19) polymorphisms. METHODS: This study was a prospective, multicenter, randomized, parallel-group, open-label, blind genotype trial. First time non cardiogenic ischemic stroke patients were enrolled and screened within 30 days. Participants were randomized to receive either triflusal or clopidogrel for secondary stroke prevention. The primary outcome was the time from randomization to first recurrent ischemic stroke or hemorrhagic stroke. RESULTS: The required sample size was 1,080 but only 784 (73%) participants were recruited. In patients with a poor CYP2C19 genotype for clopidogrel metabolism (n=484), the risk of recurrent stroke among those who received triflusal treatment was 2.9% per year, which was not significantly different from those who received clopidogrel treatment (2.2% per year; hazard ratio [HR], 1.23; 95% confidence interval [CI], 0.60-2.53). In the clopidogrel treatment group (n=393), 38% had good genotypes and 62% poor genotypes for clopidogrel metabolism. The risk of recurrent stroke in patients with a good CYP2C19 genotype was 1.6% per year, which was not significantly different from those with a poor genotype (2.2% per year; HR, 0.69; 95% CI, 0.26-1.79). CONCLUSIONS: Whilst there were no significant differences between the treatment groups in the rates of stroke recurrence, major vascular events, or coronary revascularization, the efficacy of antiplatelet agents for the secondary prevention of stroke according to CYP2C19 genotype status remains unclear. PMID- 29037011 TI - Visibility of CT Early Ischemic Change Is Significantly Associated with Time from Stroke Onset to Baseline Scan beyond the First 3 Hours of Stroke Onset. AB - BACKGROUND AND PURPOSE: Non-contrast brain computed tomography (NCCT) remains the most common imaging modality employed to select patients for thrombolytic therapy in acute ischemic stroke. The current study used the Alberta Stroke Program Early CT Score (ASPECTS) to identify early ischemic changes on brain NCCT imaging with the aim to investigate whether a relationship exists between time from symptoms onset to NCCT with the presence of early ischaemic change quantified by ASPECTS. METHODS: We studied 1,329 ischemic stroke patients who had NCCT within 8 hours of stroke onset. Patients were assessed to see if they had any ASPECTS lesion and if the rate of patients with a lesion increased with time using logistic regression. RESULTS: 30% patients had an ASPECTS <10 within the first 3 hours from symptom onset. Within the first 3 hours, the odds for a CT change (ASPECTS <10) per minute of time was 1.00 with 95% confidence interval (CI) (0.99 to 1.00) (P=0.266). After 3 hours, there was a significant increase in odds of ASPECTS <10 with increasing time. The odds of being ASPECTS positive increased 1% (odds ratio=1.01) per 1 minute of time with 95% CI (1.00 to 1.01) (P=0.002). CONCLUSIONS: We have identified that prior to first 3 hours of stroke there was no effect of time on odds of CT ischemic change; after the first 3 hours of stroke the odds increased with increasing time to CT scan. The occurrence of early ischemic change may be a marker of time from stroke onset rather than severity. PMID- 29037012 TI - Medical Treatment of Intracranial Atherosclerosis: An Update. AB - For patients with symptomatic intracranial atherosclerosis (ICAS), antithrombotic agents are the mainstay of therapy. Anticoagulation (warfarin) is not widely used since it is not more effective than aspirin and carries a high risk of bleeding. New oral anticoagulants are showing promise, but their use has not been investigated in appropriate clinical trials. Since the recurrent stroke risk is high with aspirin monotherapy, dual antiplatelets are considered in the early stage of symptomatic ICAS. Based on the Clopidogrel in High-Risk Patients with Acute Nondisabling Cerebrovascular Events (CHANCE) and Stenting and Aggressive Medical Management for Preventing Recurrent Stroke in Intracranial Stenosis (SAMMPRIS) results, aspirin plus clopidogrel has been recommended. However, this combination was not superior to aspirin monotherapy in patients with ICAS in the CHANCE substudy. Progression of ICAS is common, and it is associated with recurrent strokes. In the Trial of Cilostazol in Symptomatic Intracranial Arterial Stenosis (TOSS) study, aspirin plus cilostazol was more effective than aspirin monotherapy in preventing progression. The TOSS II trial showed that the overall change in stenosis was better with aspirin plus cilostazol than with aspirin plus clopidogrel. Aside from antithrombotic therapy, risk factor management is critical for secondary prevention, and high blood pressure is clearly linked to recurrent stroke. However, blood pressure may have to be cautiously managed in the early stage of stroke. Considering that ICAS is the major cause of stroke worldwide, further investigations are needed to establish optimal management strategies for patients with ICAS. PMID- 29037013 TI - Angioplasty, Stenting and Other Potential Treatments of Atherosclerotic Stenosis of the Intracranial Arteries: Past, Present and Future. AB - Although there is an intuitive appeal to treat symptomatic stenotic intracranial arteries with endovascular therapies such as angioplasty and stenting, current data from randomized trials show intensive medical therapy is far superior for preventing stroke. This is in large part due to the high risk of peri-procedural stroke from angioplasty and stenting. If angioplasty and stenting is to emerge as a proven treatment for intracranial stenosis, endovascular techniques will need to become much safer, identification of patients with intracranial stenosis who are at particularly high risk of stroke despite intensive medical therapy will need to be targeted, and well-designed randomized trials will be necessary to show endovascular therapy is superior to medical therapy in these high-risk patients. PMID- 29037014 TI - Deep into the Brain: Artificial Intelligence in Stroke Imaging. AB - Artificial intelligence (AI), a computer system aiming to mimic human intelligence, is gaining increasing interest and is being incorporated into many fields, including medicine. Stroke medicine is one such area of application of AI, for improving the accuracy of diagnosis and the quality of patient care. For stroke management, adequate analysis of stroke imaging is crucial. Recently, AI techniques have been applied to decipher the data from stroke imaging and have demonstrated some promising results. In the very near future, such AI techniques may play a pivotal role in determining the therapeutic methods and predicting the prognosis for stroke patients in an individualized manner. In this review, we offer a glimpse at the use of AI in stroke imaging, specifically focusing on its technical principles, clinical application, and future perspectives. PMID- 29037015 TI - Comparison of Spot Sign, Blend Sign and Black Hole Sign for Outcome Prediction in Patients with Intracerebral Hemorrhage. AB - BACKGROUND AND PURPOSE: Blend sign (BS) and black hole sign (BHS) on non-contrast computed tomography (NCCT) and spot sign (SS) on CT-angiography (CTA) are indicators of early hematoma expansion in spontaneous intracerebral hemorrhage (ICH). However, their independent contributions to outcome have not been well explored. METHODS: In this retrospective study, inclusion criteria were: 1) spontaneous ICH and 2) NCCT and CTA performed on admission within 6 hours after onset of symptoms. Discharge outcome was dichotomized as good (modified Rankin Scale [mRS] 0-3) and poor (mRS 4-6) outcomes. The impacts of BHS, BS and SS on outcome were assessed in univariate and multivariable logistic regression models. RESULTS: Of 182 patients with spontaneous ICH, 26 (14.3%) presented with BHS, 37 (20.3%) with BS and 39 (21.4%) with SS. There was a substantial correlation between SS and BS (kappa=0.701) and a moderate correlation between SS and BHS (kappa=0.424). In univariable logistic regression, higher baseline hematoma volume (P<0.001), intraventricular hemorrhage (P=0.002) and the presence of BHS/BS/SS (all P<0.001) on admission CT scan were associated with poor outcome. Multivariable analysis identified intraventricular haemorrhage (odds ratio [OR] 2.22 per mL, P=0.022), baseline hematoma volume (OR 1.03 per mL, P<0.001) and SS on CTA (OR 11.43, P<0.001) as independent predictors of poor outcome, showing that SS compared to BS and BHS was more powerful to predict poor outcome. CONCLUSIONS: The NCCT BHS and BS are correlated with the CTA SS and are reliable predictors of poor outcome in patients with ICH. Of the CT variables indicating early hematoma expansion, SS on CTA was the most reliable outcome predictor. However, given their correlation with SS on CTA, BS and BHS on NCCT can be useful for predicting outcome if CTA is not obtainable. PMID- 29037016 TI - Intracranial Atherosclerosis: Where Are We Now? PMID- 29037017 TI - Preoperative chemoradiotherapy versus postoperative chemoradiotherapy for stage II-III resectable rectal cancer: a meta-analysis of randomized controlled trials. AB - PURPOSE: Whether preoperative chemoradiotherapy (CRT) is better than postoperative CRT in oncologic outcome and toxicity is contentious in prospective randomized clinical trials. We systematically analyze and compare the treatment result, toxicity, and sphincter preservation rate between preoperative CRT and postoperative CRT in stage II-III rectal cancer. MATERIALS AND METHODS: We searched Medline, Embase, and Cochrane Library from 1990 to 2014 for relevant trials. Only phase III randomized studies performing CRT and curative surgery were selected and the data were extracted. Meta-analysis was used to pool oncologic outcome and toxicity data across studies. RESULTS: Three randomized phase III trials were finally identified. The meta-analysis results showed significantly lower 5-year locoregional recurrence rate in the preoperative-CRT group than in the postoperative-CRT group (hazard ratio, 0.59; 95% confidence interval, 0.41-0.84; p = 0.004). The 5-year distant recurrence rate (p = 0.55), relapse-free survival (p = 0.14), and overall survival (p = 0.22) showed no significant difference between two groups. Acute toxicity was significantly lower in the preoperativeCRT group than in the postoperative-CRT group (p < 0.001). However, there was no significant difference between two groups in perioperative and chronic complications (p = 0.53). The sphincter-saving rate was not significantly different between two groups (p = 0.24). The conversion rate from abdominoperineal resection to low anterior resection in low rectal cancer was significantly higher in the preoperative-CRT group than in the postoperative-CRT group (p < 0.001). CONCLUSIONS: As compared to postoperative CRT, preoperative CRT improves only locoregional control, not distant control and survival, with similar chronic toxicity and sphincter preservation rate in rectal cancer patients. PMID- 29037018 TI - Role of fractionated radiotherapy in patients with hemangioma of the cavernous sinus. AB - PURPOSE: We performed this retrospective study to investigate the outcomes of patients with hemangioma of the cavernous sinus after fractionated radiotherapy. MATERIALS AND METHODS: We analyzed 10 patients with hemangioma of the cavernous sinus who were treated with conventional radiotherapy between January 2000 and December 2016. The median patient age was 54 years (range, 31-65 years), and 8 patients (80.0%) were female. The mean hemangioma volume was 34.1 cm3 (range, 6.8 83.2 cm3), and fractionated radiation was administered to a total dose of 50-54 Gy with a daily dose of 2 Gy. RESULTS: The median follow-up period was 6.8 years (range, 2.2-8.8 years). At last follow-up, the volume of the tumor had decreased in all patients. The average tumor volume reduction rate from the initial volume was 72.9% (range, 18.9-95.3%). All 10 of the cranial neuropathies observed before radiation therapy had improved, with complete symptomatic remission in 9 cases (90%) and partial remission in 1 case (10%). No new acute neurologic impairments were reported after radiotherapy. One probable compressive optic neuropathy was observed at 1 year after radiotherapy. CONCLUSION: Fractionated radiotherapy achieves both symptomatic and radiologic improvements. It is a well-tolerated treatment modality for hemangiomas of the cavernous sinus. PMID- 29037019 TI - Effect of leukocyte alteration on treatment outcomes following preoperative chemoradiotherapy in patients with rectal cancer. AB - PURPOSE: Hematotoxicity following anti-cancer treatment is known to be related to treatment efficacy in several malignancies. The purpose of this study was to examine the hematologic parameters related to the tumor response and survival in patients treated with curative surgery following preoperative chemoradiotherapy (CRT) for rectal cancer. MATERIALS AND METHODS: Four hundred eighteen patients with rectal cancer who underwent preoperative CRT and curative surgery were analyzed, retrospectively. The main clinical factors and blood cell counts before and after CRT were investigated with respect to their relationships with tumor downstaging and patient survival. RESULTS: The post-CRT leukocyte count was significantly different between the tumor downstaging group and the nondownstaging group (median, 4740/uL vs. 5130/uL; p = 0.013). Multivariate analysis showed that histological grade, circumferential extent, and post-CRT leukocyte count were related to tumor downstaging. In addition, histological grade, post-CRT leukocyte count, and tumor downstaging were related to disease free survival. The 5-year disease-free survival and overall survival in patients with post-CRT leukocyte count <=3730/uL, which is the cut-off value derived from the receiver operation characteristic (ROC) curve analysis, were significantly higher than those with higher counts (88.0% vs. 71.6%, p = 0.001; 94.4% vs. 84.1%, p = 0.024). CONCLUSION: Post-CRT leukocyte count of <=3730/uL could be regarded as a good prognostic factor for tumor response and survival in rectal cancer patients treated with preoperative CRT. PMID- 29037020 TI - Factors associated with pulmonary toxicity after myeloablative conditioning using fractionated total body irradiation. AB - PURPOSE: Pulmonary toxicities, including infectious pneumonia (IP) and idiopathic pneumonia syndrome (IPS), are serious side effects of total body irradiation (TBI) used for myeloablative conditioning. This study aimed to evaluate clinical factors associated with IP and IPS following TBI. MATERIALS AND METHODS: Fifty eight patients with hematologic malignancies who underwent TBI before allogeneic hematopoietic stem cell transplantation between 2005 and 2014 were reviewed. Most patients (91%) received 12 Gy in 1.5 Gy fractions twice a day. Pulmonary toxicities were diagnosed based on either radiographic evidence or reduced pulmonary function, and were subdivided into IP and IPS based on the presence or absence of concurrent infection. RESULTS: Pulmonary toxicities developed in 36 patients (62%); 16 (28%) had IP and 20 (34%) had IPS. IP was significantly associated with increased treatment-related mortality (p = 0.028) and decreased survival (p = 0.039). Multivariate analysis revealed that the risk of developing IPS was significantly higher in patients who received stem cells from a matched unrelated donor than from a matched sibling donor (p = 0.021; hazard ratio [HR] = 12.67; 95% confidence interval [CI], 1.46-110.30). Combining other conditioning agents with cyclophosphamide produced a higher tendency to develop IP (p = 0.064; HR = 6.19; 95% CI, 0.90-42.56). CONCLUSION: IP and IPS involve different risk factors and distinct pathogeneses that should be considered when planning treatments before and after TBI. PMID- 29037021 TI - Multimodal therapy for locally advanced prostate cancer: the roles of radiotherapy, androgen deprivation therapy, and their combination. AB - Locally advanced prostate cancer (LAPC) is defined as histologically proven T3-4 prostatic adenocarcinoma. In this review, we define the individual roles of radiotherapy (RT), short-term (ST-) and long-term (LT-) androgen deprivation therapy (ADT), and their combination in multimodal therapy for LAPC. Despite limitations in comparing the clinical outcomes among published papers, in the present study, a trend of 10-year clinical outcomes was roughly estimated by calculating the average rates weighted by the cohort number. With RT alone, the following rates were estimated: 87% biochemical failure, 34% local failure (LF), 48% distant metastasis (DM), 38% overall survival (OS), and 27% disease-specific mortality (DSM). Those associated with ADT alone were 74% BCF, 54% OS, and 25% DSM, which appeared to be better than those of RT alone. The addition of ADT to RT produced a notable local and systemic effect, regardless of ST- or LT-ADT. The LF rate decreased from 34% with RT alone to 21% with ST-ADT and further to 15% with LT-ADT. The DM and DSM rates also showed a similar trend among RT alone, RT+ST-ADT, and RT+LT-ADT. The combination of RT+LT-ADT resulted in the best long term clinical outcomes, indicating that both RT and ADT are important parts of multimodal therapy. PMID- 29037022 TI - Radiation recall dermatitis triggered by sorafenib after radiation therapy for hepatocellular carcinoma. AB - Sorafenib is widely used for unresectable and metastatic hepatocellular carcinomas. Radiation recall dermatitis (RRD) is an acute inflammatory reaction confined to previously irradiated skin that occurs after the administration of certain drugs. RRD after sorafenib treatment is rare; five cases have been reported thus far. We describe a 44-year-old man irradiated for chest wall bone metastasis from hepatocellular carcinoma. Eight days after radiotherapy completion, systemic therapy for metastatic hepatocellular carcinoma was initiated with sorafenib treatment. Eleven days after starting sorafenib, the patient complained of erythematous rash with pruritus in the chest wall, in a location consistent with the previous radiation field. Sorafenib was continued at the same dose, despite the RRD. The skin reaction subsided over the next 2 weeks without any medical intervention. PMID- 29037023 TI - Simultaneous integrated boost intensity-modulated radiotherapy versus 3 dimensional conformal radiotherapy in preoperative concurrent chemoradiotherapy for locally advanced rectal cancer. AB - PURPOSE: To evaluate the feasibility of simultaneous integrated boost intensity modulated radiotherapy (SIB-IMRT) for preoperative concurrent chemoradiotherapy (PCRT) in locally advanced rectal cancer (LARC), by comparing with 3-dimensional conformal radiotherapy (3D-CRT). MATERIALS AND METHODS: Patients who were treated with PCRT for LARC from 2015 January to 2016 December were retrospectively enrolled. Total doses of 45 Gy to 50.4 Gy with 3D-CRT or SIB-IMRT were administered concomitantly with 5-fluorouracil plus leucovorin or capecitabine. Surgery was performed 8 weeks after PCRT. Between PCRT and surgery, one cycle of additional chemotherapy was administered. Pathologic tumor responses were compared between SIB-IMRT and 3D-CRT groups. Acute gastrointestinal, genitourinary, hematologic, and skin toxicities were compared between the two groups based on the RTOG toxicity criteria. RESULTS: SIB-IMRT was used in 53 patients, and 3D-CRT in 41 patients. After PCRT, no significant differences were noted in tumor responses, pathologic complete response (9% vs. 7%; p = 1.000), pathologic tumor regression Grade 3 or higher (85% vs. 71%; p = 0.096), and R0 resection (87% vs. 85%; p = 0.843). Grade 2 genitourinary toxicities were significantly lesser in the SIB-IMRT group (8% vs. 24%; p = 0.023), but gastrointestinal toxicities were not different across the two groups. CONCLUSION: SIB-IMRT showed lower GU toxicity and similar tumor responses when compared with 3D-CRT in PCRT for LARC. PMID- 29037024 TI - Treatment outcome and risk analysis for cataract after radiotherapy of localized ocular adnexal mucosa-associated lymphoid tissue (MALT) lymphoma. AB - PURPOSE: We retrospectively reviewed the results of radiotherapy for localized ocular adnexal MALT lymphoma (OAML) to investigate the risk factors of cataract. METHODS: Sixty-seven patients with stage IE OAML treated with radiotherapy at Seoul St. Mary's Hospital from 2001 to 2016 were included. Median treatment dose was 30 Gy. Lens protection was done in 52 (76%) patients. Radiation therapy (RT) extent was as follows: superficial (82.1%), tumor mass (4.5%), and entire orbital socket (13.4%). The risk factors for symptomatic cataract were analyzed using the Cox proportional hazard model. RESULTS: Median follow-up time was 50.9 months (range, 1.9 to 149.4 months). All patients were alive at the time of analysis. There were 7 recurrences and there was no local recurrence. Median time to recurrence was 40.4 months. There were 14 cases of symptomatic cataract. Dose >30 Gy had hazard ratio of 3.47 for cataract (p = 0.026). Omitting lens protection showed hazard ratio of 4.10 (p = 0.008). CONCLUSIONS: RT achieves excellent local control of ocular MALT lymphoma. Consideration of RT-related factors such as lens protection and radiation dose at the stage of RT planning may reduce the risk of RT-induced cataract after radiotherapy. PMID- 29037025 TI - Gross tumor volume dependency on phase sorting methods of four-dimensional computed tomography images for lung cancer. AB - PURPOSE: To see the gross tumor volume (GTV) dependency according to the phase selection and reconstruction methods, we measured and analyzed the changes of tumor volume and motion at each phase in 20 cases with lung cancer patients who underwent image-guided radiotherapy. MATERIALS AND METHODS: We retrospectively analyzed four-dimensional computed tomography (4D-CT) images in 20 cases of 19 patients who underwent image-guided radiotherapy. The 4D-CT images were reconstructed by the maximum intensity projection (MIP) and the minimum intensity projection (Min-IP) method after sorting phase as 40%-60%, 30%-70%, and 0%-90%. We analyzed the relationship between the range of motion and the change of GTV according to the reconstruction method. RESULTS: The motion ranges of GTVs are statistically significant only for the tumor motion in craniocaudal direction. The discrepancies of GTV volume and motion between MIP and Min-IP increased rapidly as the wider ranges of duty cycles are selected. CONCLUSION: As narrow as possible duty cycle such as 40%-60% and MIP reconstruction was suitable for lung cancer if the respiration was stable. Selecting the reconstruction methods and duty cycle is important for small size and for large motion range tumors. PMID- 29037026 TI - Treatment outcomes of extended-field radiation therapy for thoracic superficial esophageal cancer. AB - PURPOSE: To evaluate the efficacy and safety of extended-field radiation therapy for patients with thoracic superficial esophageal cancer (SEC). MATERIALS AND METHODS: From May 2007 to October 2016, a total of 24 patients with thoracic SEC (T1a and T1b) who underwent definitive radiotherapy and were analyzed retrospectively. The median total radiotherapy dose was 64 Gy (range, 54 to 66 Gy) in conventional fractionation. All 24 patients received radiotherapy to whole thoracic esophagus and 23 patients received elective nodal irradiation. The supraclavicular lymph nodes, the celiac lymph nodes, and both of those nodal areas were included in 11, 3, and 9 patients, respectively. RESULTS: The median follow-up duration was 28.7 months (range 7.9 to 108.0 months). The 3-year overall survival, local control, and progression-free survival rates were 95.2%, 89.7%, and 78.7%, respectively. There were 5 patients (20.8%) with progression of disease, 2 local failures (8.3%) and 3 (12.5%) regional failures. Three patients also experienced distant metastasis and had died of disease progression. There were no treatment-related toxicities of grade 3 or higher. CONCLUSION: Definitive extended-field radiotherapy for thoracic SEC showed durable disease control rates in medically inoperable and endoscopically unfit patients. Even extended-field radiotherapy with elective nodal irradiation was safe without grade 3 or 4 toxicities. PMID- 29037027 TI - Refining prognostic stratification of human papillomavirus-related oropharyngeal squamous cell carcinoma: different prognosis between T1 and T2. AB - PURPOSE: To validate the 8th edition of the American Joint Committee on Cancer/Union for International Cancer Control (AJCC/UICC) TNM staging system for human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) and investigate whether a modified classification better reflects the prognosis. MATERIALS AND METHODS: Medical records of patients diagnosed with non-metastatic HPV-related OPSCC between 2010 and 2016 at a single institution were retrospectively reviewed. HPV status was determined by immunohistochemical analysis of p16 and/or HPV DNA polymerase chain reaction (PCR). We reclassified TNM stage T0-1 and N0-1 as group A, T2-3 or N2 as B, and T4 or N3 as C. Survival analysis according to 8th AJCC/UICC TNM staging and the modified classification was performed. RESULTS: Of 383 OPSCC patients, 211 were positive for HPV DNA PCR or p16. After exclusion, 184 patients were included in this analysis. Median age was 56 years (range, 31 to 81 years). Most primary tumors were in the palatine tonsil (148 tumors, 80%). The eighth AJCC/UICC TNM classification could not differentiate between stage I and II (p = 0.470) or II and III (p = 0.209). Applying modified grouping, the 3-year overall survival rate of group A was significantly higher than that of group B and C (98% vs. 91%, p = 0.039 and 98% vs. 78%, p < 0.001, respectively). Differentiation between group B and C was marginally significant (p = 0.053). CONCLUSION: The 8th AJCC/UICC TNM staging system did not clearly distinguish the prognosis of stage II from that of other stages. Including the T2N0-1 group in stage II may improve prognostic stratification. PMID- 29037028 TI - Topological Self-Assembly of Highly Symmetric Lanthanide Clusters: A Magnetic Study of Exchange-Coupling "Fingerprints" in Giant Gadolinium(III) Cages. AB - The creation of a perfect hollow nanoscopic sphere of metal centers is clearly an unrealizable synthetic challenge. It is, however, an inspirational challenge from the viewpoint of chemical architecture and also as finite molecular species may provide unique microscopic insight into the origin and onset of phenomena such as topological spin-frustration effects found in infinite 2D and 3D systems. Herein, we report a series of high-symmetry gadolinium(III) (S = 7/2) polyhedra, Gd20, Gd32, Gd50, and Gd60, to test an approach based on assembling polymetallic fragments that contain different polygons. Structural analysis reveals that the Gd20 cage resembles a dodecahedron; the vertices of the Gd32 polyhedron exactly reveal symmetry Oh; Gd50 displays an unprecedented polyhedron in which an icosidodecahedron Gd30 core is encapsulated by an outer Gd20 dodecahedral shell with approximate Ih symmetry; and the Gd60 shows a truncated octahedron geometry. Experimental and theoretical magnetic studies show that this series produces the expected antiferromagnetic interaction that can be modeled based on classical spins at the Gd sites. From the magnetization analyses, we can roughly correlate the derivative bands to the Gd-O-Gd angles. Such a magneto-structural correlation may be used as "fingerprints" to identify these cages. PMID- 29037029 TI - Coupling N-H Deprotonation, C-H Activation, and Oxidation: Metal-Free C(sp3)-H Aminations with Unprotected Anilines. AB - An intramolecular oxidative C(sp3)-H amination from unprotected anilines and C(sp3)-H bonds readily occurs under mild conditions using t-BuOK, molecular oxygen and N,N-dimethylformamide (DMF). Success of this process, which requires mildly acidic N-H bonds and an activated C(sp3)-H bond (BDE < 85 kcal/mol), stems from synergy between basic, radical, and oxidizing species working together to promote a coordinated sequence of deprotonation: H atom transfer and oxidation that forges a new C-N bond. This process is applicable for the synthesis of a wide variety of N-heterocycles, ranging from small molecules to extended aromatics without the need for transition metals or strong oxidants. Computational results reveal the mechanistic details and energy landscape for the sequence of individual steps that comprise this reaction cascade. The importance of base in this process stems from the much greater acidity of transition state and product for the 2c,3e C-N bond formation relative to the reactant. In this scenario, selective deprotonation provides the driving force for the process. PMID- 29037030 TI - Semisynthetic Bioluminescent Sensor Proteins for Direct Detection of Antibodies and Small Molecules in Solution. AB - Single-step immunoassays that can be performed directly in solution are ideally suited for point-of-care diagnostics. Our group recently developed a new platform of bioluminescent sensor proteins (LUMABS; LUMinescent AntiBody Sensor) that allow antibody detection in blood plasma. Thus far, LUMABS has been limited to the detection of antibodies recognizing natural peptide epitopes. Here, we report the development of semisynthetic LUMABS sensors that recognize nonpeptide epitopes. The non-natural amino acid para-azidophenylalanine was introduced at the position of the original antibody-recognition sites as a chemical handle to enable site-specific conjugation of synthetic epitope molecules coupled to a dibenzocylcooctyne moiety via strain-promoted click chemistry. The approach was successfully demonstrated by developing semisynthetic LUMABS sensors for antibodies targeting the small molecules dinitrophenol and creatinine (DNP-LUMABS and CR-LUMABS) with affinities of 5.8 pM and 1.3 nM, respectively. An important application of these semisynthetic LUMABS is the detection of small molecules using a competitive assay format, which is demonstrated here for the detection of creatinine. Using a preassembled complex of CR-LUMABS and an anti-creatinine antibody, the detection of high micromolar concentrations of creatinine was possible both in buffer and in 1:1 diluted blood plasma. The use of semisynthetic LUMABS sensors significantly expands the range of antibody targets and enables the application of LUMABS sensors for the ratiometric bioluminescent detection of small molecules using a competitive immunoassay format. PMID- 29037032 TI - Substituent Effect on Intramolecular Charge Transfer of Symmetric Methoxy Substituted Bi-1,3,4-oxadiazole Derivatives. AB - Intramolecular charge-transfer characteristics of a series symmetric methoxy substituted bi-1,3,4-oxadiazole derivatives with various substituted positions and quantities have been studied with a combination of experimental techniques and theoretical calculations to investigate the substituent effect. Different degrees of fluorescence red shift in polar solvents are observed in these compounds. The meta-substituted molecule (BOXD-m-OCH3) exhibits a larger red shift (82 nm) than the other two monosubstituted molecules, BOXD-o-OCH3 (40 nm) and BOXD-p-OCH3 (37 nm); the polysubstituted molecules BOXD-D1 and BOXD-T1 show 80 and 104 nm red shifts, respectively, which are obviously larger than the monosubstituted molecules. The changes of molecular dipole moment between the ground state and charge transfer (CT) excited state are calculated to be on the same order with the degree of red shift (7.56 D in BOXD-o-OCH3, 12.07 D in BOXD-m OCH3, 7.38 D in BOXD-p-OCH3, 14.79 D in BOXD-D1, and 16.80 D in BOXD-T1). Theoretical calculations at the density functional theory level reveal that the first singlet excited state of all of these compounds shows both pi-pi* and CT characteristics and the charge has been proven to transfer from the terminal methoxy phenyl group to the central bioxadiazole group. The analysis of charge transfer based on electron density shows that the greater the amount substituent, the more charge would be involved in the intramolecular charge transfer. In addition, the negative barycenter has a tendency to locate close to the methoxy substituent, which would cause the difference in the charge-transferred distance. The transferred charge and CT distance work jointly and finally lead to differences in dipole moment variation. These findings could provide very good guidance for the design of molecules with intramolecular charge-transfer characteristics. PMID- 29037033 TI - Carboxymethylcellulose Mediates the Transport of Carbon Nanotube-Magnetite Nanohybrid Aggregates in Water-Saturated Porous Media. AB - Carbon-metal oxide nanohybrids (NHs) are increasingly recognized as the next generation, promising group of nanomaterials for solving emerging environmental issues and challenges. This research, for the first time, systematically explored the transport and retention of carbon nanotube-magnetite (CNT-Fe3O4) NH aggregates in water-saturated porous media under environmentally relevant conditions. A macromolecule modifier, carboxymethylcellulose (CMC), was employed to stabilize the NHs. Our results show that transport of the magnetic CNT-Fe3O4 NHs was lower than that of nonmagnetic CNT due to larger hydrodynamic sizes of NHs (induced by magnetic attraction) and size-dependent retention in porous media. Classical Derjaguin-Landau-Verwey-Overbeek (DLVO) theory can explain the mobility of NHs under varying experimental conditions. However, in contrast with colloid filtration theory, a novel transport feature-an initial lower and a following sharp-higher peaks occurred frequently in the NHs' breakthrough curves. The magnitude and location of both transport peaks varied with different experimental conditions, due to the interplay between variability of fluid viscosity and size-selective retention of the NHs. Promisingly, the estimated maximum transport distance of NHs ranged between ~0.38 and 46 m, supporting the feasibility of employing the magnetically recyclable CNT-Fe3O4 NHs for in situ nanoremediation of contaminated soil, aquifer, and groundwater. PMID- 29037031 TI - Structural Mechanisms of Gating in Ionotropic Glutamate Receptors. AB - Ionotropic glutamate receptors (iGluRs) are ligand-gated ion channels that mediate the majority of excitatory neurotransmission in the central nervous system. iGluRs open their ion channels in response to binding of the neurotransmitter glutamate, rapidly depolarize the postsynaptic neuronal membrane, and initiate signal transduction. Recent studies using X-ray crystallography and cryo-electron microscopy have determined full-length iGluR structures that (1) uncover the receptor architecture in an unliganded, resting state, (2) reveal conformational changes produced by ligands in order to activate iGluRs, open their ion channels, and conduct ions, and (3) show how activated, glutamate-bound iGluRs can adopt a nonconducting desensitized state. These new findings, combined with the results of previous structural and functional experiments, kinetic and molecular modeling, mutagenesis, and biochemical analyses, provide new views on the structural mechanisms of iGluR gating. PMID- 29037034 TI - Pairwise H2/D2 Exchange and H2 Substitution at a Bimetallic Dinickel(II) Complex Featuring Two Terminal Hydrides. AB - A compartmental ligand scaffold HL with two beta-diketiminato binding sites spanned by a pyrazolate bridge gave a series of dinuclear nickel(II) dihydride complexes M[LNi2(H)2], M = Na (Na.2) and K (K.2), which were isolated after reacting the precursor complex [LNi2(MU-Br)] (1) with MHBEt3 (M = Na and K). Crystallographic characterization showed the two hydride ligands to be directed into the bimetallic pocket, closely interacting with the alkali metal cation. Treatment of K.2 with dibenzo(18-crown-6) led to the separated ion pair [LNi2(H)2][K(DB18C6)] (2[K(DB18C6)]). Reaction of Na.2 or K.2 with D2 was investigated by a suite of 1H and 2H NMR experiments, revealing an unusual pairwise H2/D2 exchange process that synchronously involves both Ni-H moieties without H/D scrambling. A mechanistic picture was provided by DFT calculations which suggested facile recombination of the two terminal hydrides within the bimetallic cleft, with a moderate enthalpic barrier of ~62 kJ/mol, to give H2 and an antiferromagnetically coupled [LNiI2]- species. This was confirmed by SQUID monitoring during H2 release from solid 2[K(DB18C6)]. Interaction with the Lewis acid cation (Na+ or K+) significantly stabilizes the dihydride core. Kinetic data for the M[L(Ni-H)2] -> H2 transition derived from 2D 1H EXSY spectra confirmed first-order dependence of H2 release on M.2 concentration and a strong effect of the alkali metal cation M+. Treating [LNi2(D)2]- with phenylacetylene led to D2 and dinickel(II) complex 3- with a twice reduced styrene-1,2-diyl bridging unit in the bimetallic pocket. Complexes [LNiII2(H)2]- having two adjacent terminal hydrides thus represent a masked version of a highly reactive dinickel(I) core. Storing two reducing equivalents in adjacent metal hydrides that evolve H2 upon substrate binding is reminiscent of the proposed N2 binding step at the FeMo cofactor of nitrogenase, suggesting the use of the present bimetallic scaffold for reductive bioinspired activation of a range of inert small molecules. PMID- 29037035 TI - Computational Prediction of Excited-State Carbon Tunneling in the Two Steps of Triplet Zimmerman Di-pi-Methane Rearrangement. AB - The photoinduced Zimmerman di-pi-methane (DPM) rearrangement of polycyclic molecules to form synthetically useful cyclopropane derivatives was found experimentally to proceed in a triplet excited state. We have applied state-of the-art quantum mechanical methods, including M06-2X, DLPNO-CCSD(T) and variational transition-state theory with multidimensional tunneling corrections, to an investigation of the reaction rates of the two steps in the triplet DPM rearrangement of dibenzobarrelene, benzobarrelene and barrelene. This study predicts a high probability of carbon tunneling in regions around the two consecutive transition states at 200-300 K, and an enhancement in the rates by 104-276/35-67% with carbon tunneling at 200/300 K. The Arrhenius plots of the rate constants were found to be curved at low temperatures. Moreover, the computed 12C/13C kinetic isotope effects were affected significantly by carbon tunneling and temperature. Our predictions of electronically excited-state carbon tunneling and two consecutive carbon tunneling are unprecedented. Heavy-atom tunneling in some photoinduced reactions with reactive intermediates and narrow barriers can be potentially observed at relatively low temperature in experiments. PMID- 29037037 TI - Superlow Friction of Graphite Induced by the Self-Assembly of Sodium Dodecyl Sulfate Molecular Layers. AB - Two-dimensional (2D) layered materials usually exhibit superlow friction properties when the shear occurs between incommensurate interface lattices. In this work, we propose a new method, which is different from the traditional structure superlubricity, to achieve the superlow friction of graphite. This method involves attaching sodium dodecyl sulfate (SDS) molecular layers on the friction surfaces by self-assembly and sliding across the aqueous medium. The friction coefficient between graphite and silica can be reduced to approximately 0.005 at a maximal contact pressure of 31 MPa by this method. The mechanism of the superlow friction was investigated by using an atomic force microscopy and can be attributed to the extremely weak interaction between graphite and SDS molecules. It forms a shear plane of SDS molecules/graphite with extremely low shear strength and extremely low adhesion. This finding provides new insights into the molecular mechanisms underlying an efficient lubrication of 2D layered materials in liquid. PMID- 29037036 TI - Intramolecular London Dispersion Interaction Effects on Gas-Phase and Solid-State Structures of Diamondoid Dimers. AB - The covalent diamantyl (C28H38) and oxadiamantyl (C26H34O2) dimers are stabilized by London dispersion attractions between the dimer moieties. Their solid-state and gas-phase structures were studied using a multitechnique approach, including single-crystal X-ray diffraction (XRD), gas-phase electron diffraction (GED), a combined GED/microwave (MW) spectroscopy study, and quantum chemical calculations. The inclusion of medium-range electron correlation as well as the London dispersion energy in density functional theory is essential to reproduce the experimental geometries. The conformational dynamics computed for C26H34O2 agree well with solution NMR data and help in the assignment of the gas-phase MW data to individual diastereomers. Both in the solid state and the gas phase the central C-C bond is of similar length for the diamantyl [XRD, 1.642(2) A; GED, 1.630(5) A] and the oxadiamantyl dimers [XRD, 1.643(1) A; GED, 1.632(9) A; GED+MW, 1.632(5) A], despite the presence of two oxygen atoms. Out of a larger series of quantum chemical computations, the best match with the experimental reference data is achieved with the PBEh-3c, PBE0-D3, PBE0, B3PW91-D3, and M06-2X approaches. This is the first gas-phase confirmation that the markedly elongated C-C bond is an intrinsic feature of the molecule and that crystal packing effects have only a minor influence. PMID- 29037040 TI - Highly Flexible and Sensitive Wearable E-Skin Based on Graphite Nanoplatelet and Polyurethane Nanocomposite Films in Mass Industry Production Available. AB - Graphene and nanomaterials based flexible pressure sensors R&D activities are becoming hot topics due to the huge marketing demand on wearable devices and electronic skin (E-Skin) to monitor the human body's actions for dedicated healthcare. Herein, we report a facile and efficient fabrication strategy to construct a new type of highly flexible and sensitive wearable E-Skin based on graphite nanoplates (GNP) and polyurethane (PU) nanocomposite films. The developed GNP/PU E-Skin sensors are highly flexible with good electrical conductivity due to their unique binary microstructures with synergistic interfacial characteristics, which are sensitive to both static and dynamic pressure variation, and can even accurately and quickly detect the pressure as low as 0.005 N/50 Pa and momentum as low as 1.9 mN.s with a gauge factor of 0.9 at the strain variation of up to 30%. Importantly, our GNP/PU E-Skin is also highly sensitive to finger bending and stretching with a linear correlation between the relative resistance change and the corresponding bending angles or elongation percentage. In addition, our E-Skin shows excellent sensitivity to voice vibration when exposed to a volunteer's voice vibration testing. Notably, the entire E-Skin fabrication process is scalable, low cost, and industrially available. Our complementary experiments with comprehensive results demonstrate that the developed GNP/PU E-Skin is impressively promising for practical healthcare applications in wearable devices, and enables us to monitor the real world force signals in real-time and in-situ mode from pressing, hitting, bending, stretching, and voice vibration. PMID- 29037039 TI - Synthesis and Preclinical Evaluation of 18F-PEG3-FPN for the Detection of Metastatic Pigmented Melanoma. AB - Although 18F-5-fluoro-N-(2-[diethylamino]ethyl)picolinamide (18F-5-FPN) is considered a promising radiopharmaceutical for PET imaging of melanoma, it accumulates at high concentrations in the liver. The aim in this research was to optimize the structure of 18F-5-FPN with triethylene glycol to reduce liver uptake as well as improve pharmacokinetics, and to evaluate its performance in detection of melanoma liver and lung metastases. 18F-PEG3-FPN was successfully prepared with a high radiolabeling yield (44.68% +/- 5.99%) and radiochemical purity (>99%). The uptake of 18F-PEG3-FPN by pigmented B16F10 melanoma cells was significantly higher than that by amelanotic melanoma A375 cells. The binding to B16F10 cells could be blocked by excess 19F-PEG3-FPN. On small animal PET images, B16F10 tumors, but not A375 tumors, were clearly delineated after 18F-PEG3-FPN injection. More importantly, 18F-PEG3-FPN uptake by liver (2.27 +/- 0.45 and 1.74 +/- 0.35% ID/g, at 1 and 2 h) was significantly lower than that of 18F-5-FPN, and the lesions in lung and liver could be clearly detected by 18F-PEG3-FPN PET imaging in mouse models of pulmonary or hepatic metastases. Overall, we successfully synthesized 18F-PEG3-FPN, which has higher labeling efficacy and better in vivo pharmacokinetics along with lower liver uptake compared to 18F-5 FPN. This suggests 18F-PEG3-FPN as a candidate for pigmented melanoma liver and lung metastasis detection. PMID- 29037038 TI - Conformationally Dynamic Radical Transfer within Ribonucleotide Reductase. AB - Ribonucleotide reductases (RNR) catalyze the reduction of nucleotides to deoxynucleotides through a mechanism involving an essential cysteine based thiyl radical. In the E. coli class 1a RNR the thiyl radical (C439*) is a transient species generated by radical transfer (RT) from a stable diferric-tyrosyl radical cofactor located >35 A away across the alpha2:beta2 subunit interface. RT is facilitated by sequential proton-coupled electron transfer (PCET) steps along a pathway of redox active amino acids (Y122beta <-> [W48beta?] <-> Y356beta <-> Y731alpha <-> Y730alpha <-> C439alpha). The mutant R411A(alpha) disrupts the H bonding environment and conformation of Y731, ostensibly breaking the RT pathway in alpha2. However, the R411A protein retains significant enzymatic activity, suggesting Y731 is conformationally dynamic on the time scale of turnover. Installation of the radical trap 3-amino tyrosine (NH2Y) by amber codon suppression at positions Y731 or Y730 and investigation of the NH2Y* trapped state in the active alpha2:beta2 complex by HYSCORE spectroscopy validate that the perturbed conformation of Y731 in R411A-alpha2 is dynamic, reforming the H bond between Y731 and Y730 to allow RT to propagate to Y730. Kinetic studies facilitated by photochemical radical generation reveal that Y731 changes conformation on the ns-MUs time scale, significantly faster than the enzymatic kcat. Furthermore, the kinetics of RT across the subunit interface were directly assessed for the first time, demonstrating conformationally dependent RT rates that increase from 0.6 to 1.6 * 104 s-1 when comparing wild type to R411A-alpha2, respectively. These results illustrate the role of conformational flexibility in modulating RT kinetics by targeting the PCET pathway of radical transport. PMID- 29037041 TI - Triazenyl Radicals Stabilized by N-Heterocyclic Carbenes. AB - Notwithstanding the notable progress in the synthesis of N-heterocyclic carbene stabilized radicals, aminyl radicals, supported by NHCs or otherwise, have been scarcely studied due to synthetic challenges. Triazenyl radical is a particular form of aminyl radical that contains three adjacent nitrogen atoms, and offers intriguing possibilities for unique reactivity and physical properties stemming from expected delocalization of the spin density over the NNN moiety and its conjugated substituents. Here, we report the synthesis and full characterization of the first NHC-stabilized triazenyl radicals, obtained by one-electron reduction of the corresponding triazenyl cations with potassium metal. These radicals reversibly oxidize back to the cations upon treatment with transition metal sources or electrophiles, and abstract H atom from xanthene to form a new N H bond at the center nitrogen atom. Potential application of the redox couple between triazenyl cation and triazenyl radical was demonstrated as cathode active materials in lithium ion batteries. PMID- 29037042 TI - Structural Monitoring of the Onset of Excited-State Aromaticity in a Liquid Crystal Phase. AB - Aromaticity of photoexcited molecules is an important concept in organic chemistry. Its theory, Baird's rule for triplet aromaticity since 1972 gives the rationale of photoinduced conformational changes and photochemical reactivities of cyclic pi-conjugated systems. However, it is still challenging to monitor the dynamic structural change induced by the excited-state aromaticity, particularly in condensed materials. Here we report direct structural observation of a molecular motion and a subsequent packing deformation accompanied by the excited state aromaticity. Photoactive liquid crystal (LC) molecules featuring a pi expanded cyclooctatetraene core unit are orientationally ordered but loosely packed in a columnar LC phase, and therefore a photoinduced conformational planarization by the excited-state aromaticity has been successfully observed by time-resolved electron diffractometry and vibrational spectroscopy. The structural change took place in the vicinity of excited molecules, producing a twisted stacking structure. A nanoscale torque driven by the excited-state aromaticity can be used as the working mechanism of new photoresponsive materials. PMID- 29037043 TI - Thermally Induced Encapsulation of Food Nutrients into Phytoferritin through the Flexible Channels without Additives. AB - The cavity of phytoferritin provides a nanospace to encapsulate and deliver food nutrient molecules. However, tranditional methods to prepare the ferritin nutrient complexes must undergo acid/alkaline conditions or apply additives. In this work, we provide a novel guideline that thermal treatment at 60 degrees C can expand ferritin channels by uncoiling the surrounding alpha-helix. Upon reduction of the temperature to 20 degrees C, food nutrient rutin can be encapsulated in apo-soybean seed ferritin (apoSSF) at pH 7.0 through channels without disassembly of the protein cage and with no addition of additives. Results indicated that one apoSSF could encapsulate about 10.5 molecules of rutin, with an encapsulation ratio of 8.08% (w/w). In addition, the resulting rutin-loaded SSF complexes were monodispersed in a size of 12 nm in aqueous solution. This work provides a novel pathway for the encapsulation of food nutrient molecules into the nanocavity of ferritin under a neutral pH condition induced by thermal treatment. PMID- 29037044 TI - Porous Poly(epsilon-caprolactone)-Poly(l-lactic acid) Semi-Interpenetrating Networks as Superior, Defect-Specific Scaffolds with Potential for Cranial Bone Defect Repair. AB - The treatment of irregular cranial bone defects is currently limited due to the graft resorption that can occur when an ill-fitting interface exists between an autograft and the surrounding tissue. A tissue engineering scaffold able to achieve defect-specific geometries could improve healing. This work reports a macroporous, shape memory polymer (SMP) scaffold composed of a semi interpenetrating network (semi-IPN) of thermoplastic poly(l-lactic acid) (PLLA) within cross-linked poly(epsilon-caprolactone) diacrylate (PCL-DA) that is capable of conformal fit within a defect. The macroporous scaffolds were fabricated using a fused salt template and were also found to have superior, highly controlled properties needed for regeneration. Specifically, the scaffolds displayed interconnected pores, improved rigidity, and controlled, accelerated degradation. Although slow degradation rates of scaffolds can limit healing, the unique degradation behavior observed could prove promising. Thus, the described SMP semi-IPN scaffolds overcome two of the largest limitations in bone tissue engineering: defect "fit" and tailored degradation. PMID- 29037045 TI - Bi4O4Cu1.7Se2.7Cl0.3: Intergrowth of BiOCuSe and Bi2O2Se Stabilized by the Addition of a Third Anion. AB - Layered two-anion compounds are of interest for their diverse electronic properties. The modular nature of their layered structures offers opportunities for the construction of complex stackings used to introduce or tune functionality, but the accessible layer combinations are limited by the crystal chemistries of the available anions. We present a layered three-anion material, Bi4O4Cu1.7Se2.7Cl0.3, which adopts a new structure type composed of alternately stacked BiOCuSe and Bi2O2Se-like units. This structure is accessed by inclusion of three chemically distinct anions, which are accommodated by aliovalently substituted Bi2O2Se0.7Cl0.3 blocks coupled to Cu-deficient Bi2O2Cu1.7Se2 blocks, producing a formal charge modulation along the stacking direction. The hypothetical parent phase Bi4O4Cu2Se3 is unstable with respect to its charge neutral stoichiometric building blocks. The complex layer stacking confers excellent thermal properties upon Bi4O4Cu1.7Se2.7Cl0.3: a room-temperature thermal conductivity (kappa) of 0.4(1) W/mK was measured on a pellet with preferred crystallite orientation along the stacking axis, with perpendicular measurement indicating it is also highly anisotropic. This kappa value lies in the ultralow regime and is smaller than those of both BiOCuSe and Bi2O2Se. Bi4O4Cu1.7Se2.7Cl0.3 behaves like a charge-balanced semiconductor with a narrow band gap. The chemical diversity offered by the additional anion allows the integration of two common structural units in a single phase by the simultaneous and coupled creation of charge-balancing defects in each of the units. PMID- 29037046 TI - ADMET Evaluation in Drug Discovery. 18. Reliable Prediction of Chemical-Induced Urinary Tract Toxicity by Boosting Machine Learning Approaches. AB - Xenobiotic chemicals and their metabolites are mainly excreted out of our bodies by the urinary tract through the urine. Chemical-induced urinary tract toxicity is one of the main reasons that cause failure during drug development, and it is a common adverse event for medications, natural supplements, and environmental chemicals. Despite its importance, there are only a few in silico models for assessing urinary tract toxicity for a large number of compounds with diverse chemical structures. Here, we developed a series of qualitative and quantitative structure-activity relationship (QSAR) models for predicting urinary tract toxicity. In our study, the recursive feature elimination method incorporated with random forests (RFE-RF) was used for dimension reduction, and then eight machine learning approaches were used for QSAR modeling, i.e., relevance vector machine (RVM), support vector machine (SVM), regularized random forest (RRF), C5.0 trees, eXtreme gradient boosting (XGBoost), AdaBoost.M1, SVM boosting (SVMBoost), and RVM boosting (RVMBoost). For building classification models, the synthetic minority oversampling technique was used to handle the imbalance data set problem. Among all the machine learning approaches, SVMBoost based on the RBF kernel achieves both the best quantitative (qext2 = 0.845) and qualitative predictions for the test set (MCC of 0.787, AUC of 0.893, sensitivity of 89.6%, specificity of 94.1%, and global accuracy of 90.8%). The application domains were then analyzed, and all of the tested chemicals fall within the application domain coverage. We also examined the structure features of the chemicals with large prediction errors. In brief, both the regression and classification models developed by the SVMBoost approach have reliable prediction capability for assessing chemical-induced urinary tract toxicity. PMID- 29037047 TI - Peptides on the Rise. PMID- 29037048 TI - New Discoveries to Old Problems: A Virtual Issue on Air Pollution in Rapidly Industrializing Countries. PMID- 29037050 TI - Simian Immunodeficiency Virus Infection Increases Blood Ethanol Concentration Duration After Both Acute and Chronic Administration. AB - Alcohol use disorder (AUD) is a frequent comorbidity among people living with HIV/AIDS (PLWHA). Alcohol consumption is a significant predictor of nonadherence to antiretroviral therapy (ART), as well as worsening immunological and virological indicators among PLWHA. Clinical studies indicate that higher viral loads increase sensitivity to alcohol in PLWHA. The factors that influence alcohol kinetics after HIV infection and initiation of ART are not well understood, limiting the information upon which interventions can be designed to ameliorate the impact of alcohol misuse on this vulnerable patient population. To better understand the relationship between viral load and alcohol kinetics, we measured changes in doses of intragastric ethanol administration to achieve target blood ethanol concentration (BEC) in a rhesus macaque model of chronic binge alcohol (CBA) administration and acute changes following a single acute binge dose of alcohol (ABA) pre- and post-simian immunodeficiency virus (SIV) infection, and following ART initiation. Our results from CBA (14 months) administered SIV-infected male macaques showed that, following ART initiation, macaques required higher doses of alcohol to achieve a target peak BEC compared with non-ART-treated SIV-infected macaques. In animals given ABA, we found prolonged duration of elevated BEC and decreased elimination rate of alcohol that was not corrected following 7 weeks of ART. These findings suggest that binge drinking associated with AUD could negatively interact with HIV infection and enhance disease progression. These findings further support the need for implementation of behavioral or therapeutic interventions to decrease alcohol consumption to improve the quality of life in PLWHA. PMID- 29037051 TI - T Regulatory Cell Induced Foxp3 Binds the IL2, IFNgamma, and TNFalpha Promoters in Virus-Specific CD8+ T Cells from Feline Immunodeficiency Virus Infected Cats. AB - Polyfunctional CD8+ T cells play a critical role in controlling viremia during AIDS lentiviral infections. However, for most HIV-infected individuals, virus specific CD8+ T cells exhibit loss of polyfunctionality, including loss of IL2, TNFalpha, and IFNgamma. Using the feline immunodeficiency virus (FIV) model for AIDS lentiviral persistence, our laboratory has demonstrated that FIV-activated Treg cells target CD8+ T cells, leading to a reduction in IL2 and IFNgamma production. Furthermore, we have demonstrated that Treg cells induce expression of the repressive transcription factor, Foxp3, in CD8+ T cells. Based upon these findings, we asked if Treg-induced Foxp3 could bind to the IL2, TNFalpha, and IFNgamma promoter regions in virus-specific CD8+ T cells. Following coculture with autologous Treg cells, we demonstrated decreased mRNA levels of IL2 and IFNgamma at weeks 4 and 8 postinfection and decreased TNFalpha at week 4 postinfection in virus-specific CD8+ T cells. We also clearly demonstrated Treg cell-induced Foxp3 expression in virus-specific CD8+ T cells at weeks 1, 4, and 8 postinfection. Finally, we documented Foxp3 binding to the IL2, TNFalpha, and IFNgamma promoters at 8 weeks and 6 months postinfection in virus-specific CD8+ T cells following Treg cell coculture. In summary, the results here clearly demonstrate that Foxp3 inhibits IL2, TNFalpha, and IFNgamma transcription by binding to their promoter regions in lentivirus-specific CD8+ T cells. We believe this is the first description of this process during the course of AIDS lentiviral infection. PMID- 29037049 TI - Detection and Characterization of Reactive Oxygen and Nitrogen Species in Biological Systems by Monitoring Species-Specific Products. AB - SIGNIFICANCE: Since the discovery of the superoxide dismutase enzyme, the generation and fate of short-lived oxidizing, nitrosating, nitrating, and halogenating species in biological systems has been of great interest. Despite the significance of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in numerous diseases and intracellular signaling, the rigorous detection of ROS and RNS has remained a challenge. Recent Advances: Chemical characterization of the reactions of selected ROS and RNS with electron paramagnetic resonance (EPR) spin traps and fluorescent probes led to the establishment of species specific products, which can be used for specific detection of several forms of ROS and RNS in cell-free systems and in cultured cells in vitro and in animals in vivo. Profiling oxidation products from the ROS and RNS probes provides a rigorous method for detection of those species in biological systems. CRITICAL ISSUES: Formation and detection of species-specific products from the probes enables accurate characterization of the oxidative environment in cells. Measurement of the total signal (fluorescence, chemiluminescence, etc.) intensity does not allow for identification of the ROS/RNS formed. It is critical to identify the products formed by using chromatographic or other rigorous techniques. Product analyses should be accompanied by monitoring of the intracellular probe level, another factor controlling the yield of the product(s) formed. FUTURE DIRECTIONS: More work is required to characterize the chemical reactivity of the ROS/RNS probes, and to develop new probes/detection approaches enabling real-time, selective monitoring of the specific products formed from the probes. Antioxid. Redox Signal. 28, 1416-1432. PMID- 29037053 TI - Microorganisms as an Indicator of Hygiene Status Among Migrant Food Handlers in Peninsular Malaysia. AB - This study used microbial indicators to assess the hygiene status of 383 migrant food handlers from 3 urban cities in Peninsular Malaysia. Microbiological analysis revealed that all the hand swabs tested 99.5% positive for aerobic plate counts (mean [M] +/- standard deviation [SD] = 3.57 +/- 0.83 log10CFU [colony forming unit]), 20.8% positive for total coliform/ Escherichia coli (M +/- SD = 0.30 +/- 0.67 log10CFU), and 63.4% positive for Staphylococcus aureus (M +/- SD = 1.38 +/- 1.26 log10CFU). In addition, aerobic plate counts and Staphylococcus aureus counts exceeded the acceptable standard levels. Bacterial counts were found to be significantly associated with subjects' country of origin ( P = .019) and working responsibilities ( P = .001). Our findings indicate high probability of transmission of pathogenic bacteria from the food handlers' hands to customers during meal preparation and serving. This calls for improvements in personal hygiene and sanitation standards by the relevant health authorities among migrant food handlers. PMID- 29037055 TI - Computer aided diagnosis sensor integrated outdoor shirts for real time heart disease monitoring. AB - The typical method of monitoring arrhythmia is to use a body patch type sensor with a wet electrode. It has several problems caused by wet electrodes for long term monitoring. Thus, a monitoring sensor integrated into clothes with a dry electrode is proposed. In this study, we develop a smart outdoor shirt equipped with a dry electrode electrocardiogram (ECG) sensor for a cardiac arrhythmia computer aided diagnosis system. The sensor can be inserted in a console close to the chest, charged, used to communicate wirelessly, and connected with a smartphone application. The ECG signals measured by the smart shirt indicated that 97.5 +/- 1% of the signals could be measured in an immobile state and at least 85.2 +/- 2% of the signals could be measured during movement. We propose a computer aided diagnosis system for detecting cardiac arrhythmia. It was determined through experiments that the system can detect arrhythmia with an accuracy of 98.2 +/- 2%. This study suggests that smart shirt which can diagnose arrhythmia will provide information that can quickly recognize arrhythmia in daily life or exercise. PMID- 29037054 TI - Exposure to Tobacco Advertising, Promotion Among the Adult Population in Vietnam and Its Implications for Public Health. AB - INTRODUCTION: The Law on Tobacco Control and the Law on Advertisement prohibit the advertising of any tobacco product in Vietnam. Tobacco promotion and marketing are alsostrictly prohibited. However, the violation of tobacco adverting and promotion is still common in Vietnam. OBJECTIVES: This article aims at describing the exposure to tobacco advertising and promotion among the population aged 15+ years in Vietnam based on the data from the Global Adult Tobacco Survey 2015 from the view of the community, identifying any possible associations between the exposure to tobacco advertising and promotion and other individual factors, and discussing its possible public health implications. METHOD: A cross-sectional study with the nationwide scale. Secondary data from the Global Adult Tobacco Survey 2015 was explored and analyzed. Chi-square test and multivariate logistic regressions were applied in the data analysis. RESULTS: The most common type of adults' exposure to tobacco advertising and promotion was points of sale (8.6%); 9.8% adults exposure to one source of tobacco advertising and 4.0% of them exposed to one source of tobacco promotion. Around 13.3% of Vietnamese adults were exposed to tobacco advertisement, while 2.0% were exposed to tobacco promotion, 5.3% were exposed to both tobacco advertising and promotion, and 16.6% were exposed to tobacco advertising or promotion. Gender, educational level, age, occupation, marital status, socioeconomic status, location (urban, rural), and current smoking status were associated with the exposure to tobacco advertising, tobacco promotion, tobacco advertising and promotion, and tobacco advertising or promotion. CONCLUSION AND RECOMMENDATION: Although there are comprehensive bans on tobacco advertising and promotion in Vietnam, adults aged 15+ years still reported their exposure to tobacco advertising and promotion. There should be a strict enforcement of the ban on tobacco advertising and promotion in Vietnam. PMID- 29037056 TI - [Neuroacanthocytosis diagnosis with new generation whole exome sequencing]. AB - In a patient with marked symptoms of Huntington disease after the huntingtin testing, which gave normal result, a whole exome sequencing (WES) has been performed based on an international collaboration. A homozygous G>A nucleotid change in the exon 34 of the VPS13A gene has been detected with WES, a mutation resulting in a premature stop codon at the position 1301. This change is a known pathogenic mutation. The aim of this article is to draw attention on the importance of the WES in the diagnosis of rare neurological diseases without any specific symptoms. Orv Hetil. 2017; 158(42): 1681-1684. PMID- 29037057 TI - [One year adherence of ramipril versus ramipril/amlodipine fixed dose combination therapy in hypertension]. AB - INTRODUCTION: In the treatment of hypertension avoiding adverse cardiovascular complications to achieve target blood pressure is essential. The appropriate drug selection, and if necessary to change to combination therapy, patients adherence is important which may help fixed dose combination. AIM: The aim of the authors was to investigate the one year adherence of the ramipril and ramipril/amlodipine fixed dose combination in hypertensive patients. METHOD: Prescriptions database of the National Health Insurance Fund in Hungary on pharmacy-claims was analysed between October 1, 2012 and September 30, 2013. The authors identified patients who filled prescriptions for ramipril monotherapy and fixed dose combinations of ramipril/amlodipine prescribed for the first time in hypertensive patients who have not received similar drugs in the previous year. To model the adherence, the apparatus of survival analysis was used, where "survival" was the time to abandon the medication. As it was available to month precision, discrete time survival analysis was applied: a generalized linear model was estimated with complementary log-log link function with the kind of drug being the only explanatory variable. RESULTS: 92,546 patients met the inclusion criteria. During the trial period, ramipril therapy or ramipril/amlodipine fixed dose combination was started in 82,251 and 10,295 patients, respectively. One year persistence rate in patients with ramipril was 30% and 54% in patients with ramipril/amlodipine fixed dose combination therapy. Considering only the 360-day study period, the mean duration of persistence was 189.9 days in patients on ramipril and 270.6 days on ramipril/amlodipine fixed dose combination therapy. The hazard of discontinuation was more than twofold higher during treatment with ramipril compared with the use of the ramipril/amlodipine fixed dose combination therapy (HR = 2.11 [95% CI: 2.05-2.17], p<0,001). CONCLUSIONS: There is a significant difference between the one year persistence of ramipril and ramipril/amlodipine fixed dose combination therapy in hypertension. The result demonstrated that ramipril/amlodipine fixed dose combination therapy has a better one year persistence rate. When the next step is necessary to achieve target blood pressure, ramipril/amlodipine fixed dose combination therapy is preferable. Orv Hetil. 2017; 158(42): 1668-1673. PMID- 29037052 TI - Redox-Sensitive Innate Immune Pathways During Macrophage Activation in Type 1 Diabetes. AB - SIGNIFICANCE: Type 1 diabetes (T1D) is an autoimmune disease resulting in beta cell destruction mediated by islet-infiltrating leukocytes. The role of oxidative stress in human and murine models of T1D is highly significant as these noxious molecules contribute to diabetic complications and beta-cell lysis, but their direct impact on dysregulated autoimmune responses is highly understudied. Pro inflammatory macrophages play a vital role in the initiation and effector phases of T1D by producing free radicals and pro-inflammatory cytokines to facilitate beta-cell destruction and to present antigen to autoreactive T cells. Recent Advances: Redox modulation of macrophage functions may play critical roles in autoimmunity. These include enhancing pro-inflammatory innate immune signaling pathways in response to environmental triggers, enforcing an M1 macrophage differentiation program, controlling antigen processing, and altering peptide recognition by oxidative post-translational modification. Therefore, an oxidative environment may act on multiple macrophage functions to orchestrate T1D pathogenesis. CRITICAL ISSUES: Mechanisms involved in the initiation of T1D remain unclear, making preventive and early therapeutics difficult to develop. Although many of these advances in the redox regulation of macrophages are in their infancy, they provide insight into how oxidative stress aids in the precipitating event of autoimmune activation. FUTURE DIRECTIONS: Future studies should be aimed at mechanistically determining which redox-regulated macrophage functions are pertinent in T1D pathogenesis, as well as at investigating potential targetable therapeutics to halt and/or dampen innate immune activation in T1D. PMID- 29037058 TI - [Efficacy of the population-based pilot colorectal screening program. Hungary, Csongrad county, 2015]. AB - INTRODUCTION: In Hungary, a nationwide colorectal screening program is about to be introduced in order to improve the extremely high mortality rate of colorectal cancer (CRC). AIM: The aim of our study was to summarize experiences and assess short-term efficacy of the population-based pilot colorectal screening program in 2015 in Csongrad County, Hungary. PATIENTS AND METHOD: Asymptomatic individuals between the ages of 50 and 70 with average risk of colorectal cancer participated in the program that was based on the two-step screening method (i.e. immune fecal blood test and colonoscopy). The short-term efficacy of the screening program was assessed as the change in total CRC incidence and initial tumor stage in the screening year (2015) compared to a control year (2013) in Szeged and its surroundings. Participation rate, positive predictive value of the screening methods and tumor detection rate was assessed. RESULTS: 22,130 individuals were invited, the participation rate was 46.4%. Immune fecal blood test proved to be non-negative in 1,343 cases (13%), screening colonoscopy was performed in 766 of them (7.5%). Total colonoscopy was performed in 711 individuals. Based on the reports, adenoma was detected in 358 (50.3%) and malignancy in 42 (5.9%) individuals. In the background population, the incidence of colon cancer was significantly higher (183 vs. 228; p = 0.026) and was diagnosed at significantly earlier stage (p = 0.002). Lymph node involvement was significantly lower in 2015 (48.3% vs. 37.1%; p = 0.049). CONCLUSION: The Csongrad county population-based colorectal cancer screening was evidently successful on the short term considering participation rate, and the changes in CRC incidence and stage, thus its national extension is necessary. Orv Hetil. 2017; 158(42): 1658-1667. PMID- 29037059 TI - [Experimental study on the resistance to intraluminal pressure between handsewn and stapled anastomosis. In vitro experimental study]. AB - : Intoduction and aim: The aim of the study was to compare the resistance to pressure of stapled and manually handsewn intestinal suture lines on in vitro pig intestine model. METHOD: We performed different types of stapled and manual sutures and the pressure level was measured using a differential pressure manometer. RESULTS: Although the hand-sewn end-to-end suture turned out to be the most resistant to pressure, statistical analysis revealed no significant differences compared to stapled suture (p = 0.49). In stump closure techniques, we observed a statistically high significance in resistance to pressure in the favour of manual stump closure (p = 0.004).Regarding side-to-side sutures we did not find any statistically significant differences in resistance to pressure between the techniques (p = 0.06). CONCLUSION: We can conclude that regarding the stump closure, the most resistant to pressure is the hand-sewn procedure, but in the other types of anastomosis, no significant differences was found between the stapled and hand-sewn techniques. Orv Hetil. 2017; 158(42): 1674-1680. PMID- 29037061 TI - [The role of steroids in oncological practice]. AB - Corticosteroids are a class of steroid hormones that are produced and disengage in the adrenal cortex. Traditionally natural and synthetic corticosteroids are used for diagnosing and treating dysfunctions of the adrenal cortex and treating inflammatory and immunological diseases. Their use is also widespread in oncological practice. Corticosteroids are indispensable in palliative care, in certain urgent oncological cases, as premedication of some chemotherapies and last but not least they have a key role in the secondary hormonal manipulations of metastatic castrate-resistant prostate cancer. The purpose of our review is to describe and compare the effects of different agents in oncological practice, to give a detailed account of the above mentioned indications and would also like to draw attention to the possible side effects of a long-term steroid treatment. Orv Hetil. 2017; 158(42): 1651-1657. PMID- 29037062 TI - Quantum dot-based lateral-flow immunoassay for rapid detection of rhein using specific egg yolk antibodies. AB - The lateral-flow immunoassays based on novel fluorescent labels have been receiving increasing attention. Here, we developed a rapid, quantitative, lateral flow immunoassay for rapid and accurate detection of rhein (RHE). The competitive immunoassay used anti-RHE IgY (immunoglobulin of yolk) probe conjugated with QDs as reporter. Our results showed that the immunochromatographic strip can be applied for qualitative and quantitative analysis of RHE in samples. For quantitative analysis, the strips were scanned by a membrane-strip reader, and a detection curve (y = -0.128ln(x) + 1.7627, correlation coefficient = 0.9792) representing the averages of the scanned data was obtained. The detection range was 80-5000 ng mL-1 and the qualitative-detection limit for RHE was 98.2 ng mL-1. To our knowledge, this is the first report of the quantitative detection of a natural product by QDs-IgY immunochromatography, which creates a new strategy to detect the harmful or index component of TCM and may be applied as a supplement or alternative to instrument detection. PMID- 29037063 TI - Barriers to Self-Management in Depressed Women With Type 2 Diabetes. AB - Purpose To describe the impact of family functioning on the self-management of type 2 diabetes (T2DM) and depression in a subsample of women who completed a randomized clinical trial using vitamin D3 (5000 or 50,000 IUs weekly) for depression treatment. Background Women are at higher risk for increased severity of T2DM when experiencing depression. Methods Narrative inquiry was used. A semi structured interview was conducted to understand helpful strategies and barriers in managing T2DM and depression. In addition, women were asked their meaning of family quality of life (FQOL). Results Twenty-one women participated after completion of the six-month final visit in the randomized clinical trial. The mean age was 55.2 years. Participants were 24% Hispanic, 48% African-American, and 52% Caucasian. The major themes generated related to family issues that impacted their self-management, yet participants did not want to "bring fault" to their families. Three themes emerged: (a) experience of family hardships-"it's been hard for me," (b) lack of disclosure to family about being depressed-"no point in talking to them," and (c) the need for connectedness with family and others-"the way it used to be... close as a family." Conclusion Family-centered approaches could address barriers to self-management. A "family lens" for practice and research may improve health outcomes. PMID- 29037064 TI - Outcome of Transurethral Resection of Bladder Tumor: Does Antiplatelet Therapy Really Matter? Analysis of a Retrospective Series. AB - INTRODUCTION: Transurethral resection of bladder tumor (TURBT) is considered to be at a moderate or high risk of bleeding during surgical procedure. The number of patients on antiplatelet (AP) drugs has been increasing; we wanted to assess their impact on the outcome of patients undergoing scheduled TURBT. MATERIALS AND METHODS: A retrospective assessment of noninferiority of 450 consecutive procedures performed between April 2013 and June 2015 was conducted. Patients were divided in two groups: naive or AP drug users. The primary endpoint was the average length of stay (ALOS). Noninferiority was set at 1 day. A subgroup analysis comparing the acetylsalicylic acid (ASA) group and clopidogrel group to the naive group was performed. Multivariate analysis was performed to find the determinants of a longer ALOS. Chi-square or Fisher tests were used to analyze categorical variables, and Student's or Mann-Whitney tests were used to analyze quantitative variables. RESULTS: We included 325 patients who underwent TURBT: 117 received AP drugs (ASA, 85; clopidogrel, 32) and 208 were naive to AP drugs (of whom 117 were consecutively analyzed). The ALOSs were 2.5 days (naive group) and 2.9 days (AP group). The subgroup analysis showed ALOSs of 2.6 days (ASA group) and 3.7 days (clopidogrel group). Clopidogrel therapy (odds ratio = 4.1 [1.7-9.6]) and the duration and depth of resection emerged as determinants of a longer ALOS in multivariate analysis. Perioperative management of AP therapies was achieved according to recommended practices. CONCLUSIONS: The ALOS of patients receiving AP drugs was not clinically different from naive patients. This result was identical for patients receiving ASA. However, clopidogrel increased the length of stay, making us question its use in perioperative management. PMID- 29037065 TI - Patterns of symptom development in patients with motor neuron disease. AB - OBJECTIVE: To investigate whether symptom development in motor neuron disease (MND) is a random or organized process. METHODS: Six hundred patients with amyotrophic lateral sclerosis (ALS), upper motor neuron (UMN) or lower motor neuron (LMN) phenotypes were invited for a questionnaire concerning symptom development. A binomial test was used to examine distribution of symptoms from site of onset. Development of symptoms over time was evaluated by Kaplan-Meier analysis. RESULTS: There were 470 respondents (ALS = 254; LMN = 100; UMN = 116). Subsequent symptoms were more often in the contralateral limb following unilateral limb onset (ALS: arms p = 1.05 * 10-8, legs p < 2.86 * 10-15; LMN phenotype: arms p = 6.74 * 10-9, legs p = 6.26 * 10-6; UMN phenotype: legs p = 4.07 * 10-14). In patients with limb onset, symptoms occurred significantly faster in the contralateral limb, followed by the other limbs and lastly by the bulbar region. Patterns of non-contiguous symptom development were also reported: leg symptoms followed bulbar onset in 30%, and bulbar symptoms followed leg onset in 11% of ALS patients. CONCLUSIONS: Preferred spread of symptoms from one limb to the contralateral limb, and to adjacent sites appears to be a characteristic of MND phenotypes, suggesting that symptom spread is organized, possibly involving axonal connectivity. Non-contiguous symptom development, however, is not uncommon, and may involve other factors. PMID- 29037066 TI - Complications, Re-Intervention Rates, and Natural History of Residual Stone Fragments After Percutaneous Nephrolithotomy. AB - INTRODUCTION: The management of residual fragments (RFs) that persist after percutaneous nephrolithotomy (PCNL) has been poorly studied. Fragments have the potential to grow or cause symptoms. The aim of this study was to follow patients with fragments after PCNL to identify predictors of stone-related events (re interventions and complications) after PCNL. PATIENTS AND METHODS: Data were retrospectively collected from patients who underwent surgery from 2008 to 2013 at our hospital. Patients with fragments of any size on postoperative day 1 computed tomography of the kidney, ureter, and bladder radiograph (CT-KUB) were included, and patients with planned secondary interventions were excluded. Subgroup analysis was performed on subjects with CT-plain X-ray to determine fragment growth or passage. RESULTS: Of the 658 patients who received a postoperative CT-KUB on day 1, 299 patients (45%) had fragments that were 1 mm or larger. From this, 263 patients met the study criteria and were included. The size of fragments, using a 4 mm cutoff, did not predict the passage of fragments (p = 0.173) or growth (p = 0.572). On multivariable logistic regression analysis, previous history of renal stones and size of fragment were found to be predictive for stone-related events (p = 0.002 and 0.027, respectively). Kaplan-Meier analysis identified patients with fragments >4 mm having a shorter survival time before the occurrence of stone-related events (p = 0.044). CONCLUSIONS: The true stone-free rate was 55% after PCNL. However, 82.5% were stone free or had RFs 4 mm or less, which correlates with previous studies. Larger RFs had higher rates of stone-related events and shorter time to occurrence of stone-related events. The growth and spontaneous passage of RFs was independent of RF size, emphasizing the importance of obtaining a stone-free status after PCNL. PMID- 29037067 TI - Design and application of tumor prediction model based on statistical method. AB - Two prediction models for tumor prediction based on logistic regression and BP neural network were proposed in this paper; a sensitivity analysis of risk factors was also conducted. The two protocols will be implemented in the R language and demonstrated with relevant lung cancer data. Additionally, the two models are compared, verifying their accuracy and feasibility. Finally, a function is combined with R language, which can quickly achieve the above two programs. It is set up to obtain the tumor prediction model and the risk factors on the degree of correlation of the size of the disease. This method is convenient and practical and we hope it can be applied in the early discovery of cancer during future medicine. PMID- 29037068 TI - Editorial. PMID- 29037069 TI - Factor analysis of the Zarit Burden Interview in family caregivers of patients with amyotrophic lateral sclerosis. AB - OBJECTIVE: The Zarit Burden Interview has been used in many studies to assess caregiver burden in family caregivers of patients with amyotrophic lateral sclerosis, but the factor structure of the Zarit Burden Interview in the caregivers of amyotrophic lateral sclerosis patients is unknown. The aim of this study was to explore the factor structure of the Zarit Burden Interview in family caregivers of amyotrophic lateral sclerosis patients using exploratory factor analysis. METHODS: The exploratory factor analysis was performed using generalized least squares with oblique rotation in a sample of 202 family caregivers. RESULTS: Three factors had an eigenvalue greater than 1 and accounted for 60.33% of the total variance. The three factors were named as follows: (factor 1) "Social restrictions" (items 2, 3, and 10-15); (factor 2) "Self criticism" (items 20-21); and (factor 3) "Anger and frustration" (items 1, 4-6, 9, and 16-19). The correlation between factors 1 and 3 was much higher (r = 0.79) than that between factors 1 and 2 (r = 0.14) or factors 2 and 3 (r = 0.15). CONCLUSION: The findings of this study enriched our understanding of several meaningful dimensions of the caregiving burden in caregivers of an amyotrophic lateral sclerosis population and provided opportunities for future intervention. PMID- 29037070 TI - Melatonin promotes self-renewal of nestin-positive pancreatic stem cells through activation of the MT2/ERK/SMAD/nestin axis. AB - Although melatonin has been shown to exhibit a wide variety of biological functions, its effects on promotion of self-renewal in pancreatic stem cells remain unknown. In this study, we incubated murine pancreatic stem cells (PSCs) with various concentrations of melatonin (0.01, 0.1, 1, 10 or 100 MUM) to screen for the optimum culture medium for increasing cell proliferation. We found that 10 MUM melatonin can significantly increase proliferation and enhance expression of a stem cell marker, nestin, in PSCs via melatonin receptor 2 (MT2). Thus, we used 10 MUM melatonin to study the melatonin-mediated molecular mechanisms of cell proliferation in PSCs. We applied extracellular signal-regulated kinase (ERK) pathway inhibitor SCH772984 and transforming growth factor beta (TGF-beta) pathway inhibitor SB431542, along with interfering RNAs siERK1, siERK2, siSmad2, siSmad3, siSmad4 and siNestin, to melatonin-treated PSCs to research the roles of these genes in self-renewal. The results revealed a novel molecular mechanism by which melatonin promotes self-renewal of PSCs: a chain reaction in the MT2/ERK/SMAD/nestin axis promoted the aforementioned self-renewal as well as inhibited differentiation. In addition, upregulation of nestin created a positive feedback loop in the regulation of the transforming growth factor beta 1 (TGF beta1)/SMADs pathway by promoting expression of Smad4. Conversely, knockdown of nestin significantly suppressed the proliferative effect in melatonin-treated PSCs. These are all novel mechanisms through which the ERK pathway cooperatively crosstalks with the SMAD pathway to regulate nestin expression, thereby enhancing self-renewal in PSCs. PMID- 29037071 TI - Evidence-Based Review of BioBran/MGN-3 Arabinoxylan Compound as a Complementary Therapy for Conventional Cancer Treatment. AB - INTRODUCTION: Conventional cancer treatment, including surgery, chemotherapy, and radiotherapy, may not be sufficient to eradicate all malignant cells and prevent recurrence. Intensive treatment often leads to a depressed immune system, drug resistance, and toxicity, hampering the treatment outcomes. BioBran/MGN-3 Arabinoxylan is a standardized arabinoxylan concentrate which has been proposed as a plant-based immunomodulator that can restore the tumor-induced disturbance of the natural immune system, including natural killer cell activity to fight cancer, complementing conventional therapies. OBJECTIVES: To comprehensively review the available evidence on the effects and efficacies of MGN-3 as a complementary therapy for conventional cancer treatment. METHODS: Systematic search of journal databases and gray literature for primary studies reporting the effects of MGN-3 on cancer and cancer treatment. RESULTS: Thirty full-text articles and 2 conference abstracts were included in this review. MGN-3 has been shown to possess immunomodulating anticancer effects and can work synergistically with chemotherapeutic agents, in vitro. In murine models, MGN-3 has been shown to act against carcinogenic agents, and inhibit tumor growth, either by itself or in combination with other anticancer compounds. Fourteen successful MGN-3 treated clinical cases were found. Eleven clinical studies, including 5 nonrandomized, pre-post intervention studies and 6 randomized controlled trials (RCTs) were located. Reported effects include enhanced immunoprofile, reduced side effects, improved treatment outcomes; one RCT established significantly increased survival rates. There are no reports on adverse events on MGN-3. Most of the clinical trials are small studies with short duration. CONCLUSION: There is sufficient evidence suggesting MGN-3 to be an effective immunomodulator that can complement conventional cancer treatment. However, more well-designed RCTs on MGN-3 are needed to strengthen the evidence base. PMID- 29037072 TI - High perceived caregiver burden for relatives of patients following hip fracture surgery. AB - PURPOSE: To determine the profile of the main informal caregivers, the evolution of the caregiver burden, and the influencing factors of caregiver burden at 1 year after hip fracture surgery. METHODS: In this prospective cohort study, a total of 172 informal caregivers of patients were interviewed at four points during 1 year following hip fracture surgery in a regional hospital in southern Spain. The perceived caregiver burden was assessed using the Caregiver Strain Index (0-13 points). RESULTS: The mean (Standard Deviation) age of the 172 caregivers was 56 (13) years, of which 133 (77%) were woman and 94 (55%) were daughters of the patient. Seventy-nine of the 172 (46%) caregivers perceived a high level of burden (>= 7 points on the Caregiver Strain Index) at the hospital. The corresponding numbers with perceived high level of burden at 1-month, 3 months, and 1-year were 87 (50%), 61 (36%), and 45 (26%) caregivers. A low pre fracture functional status, post-operative complications, older age of patients, and younger age of caregivers negatively influence caregiver burden at 1-year. CONCLUSIONS: The main caregiver is predominantly female and is most often the daughter of the patient. New treatment strategies such as the support and training of the caregivers in patient handling during hospital stay could be carried out to reduce caregiver burden. Implications for rehabilitation The main caregiver of a hip fracture patient is usually a woman who is the daughter of the patient, and reducing her burden of care should be included as one of the objectives of rehabilitation treatment. The caregivers of hip fracture patients must be considered as part of the treatment during the patient's recovery period, and patient handling training should be provided to the caregivers of hip fracture patients during the hospital stay to prepare the process of going back home. The caregivers of older patients, those with a low pre-fracture functional level, and of those who suffered post-operative complications, should receive more attention prior to hospital discharge and receive more assistance at home to reduce caregiver burden. PMID- 29037073 TI - Physical inactivity and cognitive impairment in Korean older adults: gender differences in potential covariates. AB - BACKGROUND: Physical inactivity is one major lifestyle risk factor of mild cognitive impairment with ageing. AIM: To investigate whether or not potential covariates modulate the association between physical activity (PA) and cognitive impairment in older adults. SUBJECTS AND METHODS: Data from 10 245 Korean older adults (5817 women) were used. RESULTS: High PA older adults were younger and longer educated and had lower comorbidity and depression than low PA older adults. Compared with low PA men, moderate PA men only had a significantly lower odds-ratio (OR) and 95% confidence interval (95% CI) (OR = 0.795, 95% CI = 0.654 ~ 0.965, p = 0.021) for having cognitive impairment, even after adjusting for measured covariates, which was no longer significant when additionally adjusted for comorbidity (OR = 0.862, 95% CI = 0.707 ~ 1.051, p = 0.143). Compared with low PA women, moderate and high PA women had significantly lower risks of cognitive impairment (OR = 0.830, 95% CI = 0.712 ~ 0.969, p = 0.018 and OR = 0.784, 95% CI = 0.651 ~ 0.943, p = 0.010, respectively), even after adjusting for the measured covariates including comorbidity, which was no longer significant when additionally adjusted for depression (OR = 0.897, 95% CI = 0.776 ~ 1.049, p = 0.173 and OR = 0.919, 95% CI = 0.761 ~ 1.111, p = 0.385, respectively). CONCLUSION: These findings suggest that gender differences in the covariates modulate the relationship between physical activity and cognitive decline in older Korean adults. PMID- 29037075 TI - Optimal distance of multi-plane sensor in three-dimensional electrical impedance tomography. AB - Electrical impedance tomography (EIT) is a visual imaging technique for obtaining the conductivity and permittivity distributions in the domain of interest. As an advanced technique, EIT has the potential to be a valuable tool for continuously bedside monitoring of pulmonary function. The EIT applications in any three dimensional (3 D) field are very limited to the 3 D effects, i.e. the distribution of electric field spreads far beyond the electrode plane. The 3 D effects can result in measurement errors and image distortion. An important way to overcome the 3 D effect is to use the multiple groups of sensors. The aim of this paper is to find the best space resolution of EIT image over various electrode planes and select an optimal plane spacing in a 3 D EIT sensor, and provide guidance for 3 D EIT electrodes placement in monitoring lung function. In simulation and experiment, several typical conductivity distribution models, such as one rod (central, midway and edge), two rods and three rods, are set at different plane spacings between the two electrode planes. A Tikhonov regularization algorithm is utilized for reconstructing the images; the relative error and the correlation coefficient are utilized for evaluating the image quality. Based on numerical simulation and experimental results, the image performance at different spacing conditions is evaluated. The results demonstrate that there exists an optimal plane spacing between the two electrode planes for 3 D EIT sensor. And then the selection of the optimal plane spacing between the electrode planes is suggested for the electrodes placement of multi-plane EIT sensor. PMID- 29037074 TI - Reference data for ultrasound bone characteristics in Hungarian children aged 7 19 years. AB - : Backround: Osteoporosis is a common disease and physical activity (PA) has a favourable influence on bone status. AIM: To establish normative data for calcaneal quantitative ultrasound (QUS) bone characteristics in children and to analyse the relationships between PA, anthropometric and bone parameters. SUBJECTS AND METHODS: Hungarian children aged 7-19 (n = 2674; 1325 girls, 1349 boys) provided PA, anthropometric and bone data. QUS parameters were registered with Sonost3000 densitometer (speed of sound: SOS, m/s; broadband ultrasound attenuation: BUA, dB/MHz; bone quantity index (BQI = alphaSOS + betaBUA). Reference centiles of QUS parameters were constructed by LMS method. Multivariate linear regression models were used to analyse the relationships. RESULTS: QUS bone parameters increased with age. There were no gender differences, except in 11- and 19-year-old children, where boys showed higher values. SOS (1497.15 +/- 15.72 vs 1494.05 +/- 14.81 m/s) and BQI (65.31 +/- 16.71 vs 62.26 +/- 15.78) were higher in athletic children. The regression model revealed significant relations between SOS and age, relative muscle mass and PA; BUA correlated with gender, morphological age, BMI, relative muscle mass and PA. CONCLUSIONS: Changes in the bone parameters among 7-19-year-old Hungarian children depended on age, anthropometric dimensions and the level of PA. The normative data could be used for monitoring QUS bone parameters in children, leading to more effective interventions for healthy bones. PMID- 29037076 TI - Atlantic Canada Needs a Human Milk Bank. PMID- 29037078 TI - The accuracy of neck circumference for assessing overweight and obesity: a systematic review and meta-analysis. AB - CONTEXT: Neck circumference (NC) has been suggested as an alternative measure to screen for excess body weight. OBJECTIVE: The aim of this study was to demonstrate the accuracy of neck circumference (NC) as a measure for assessing overweight and obesity in both sexes in different age groups. METHODS: Detailed individual search strategies were developed for each of the following bibliographic databases: Cochrane, LILACS, PubMed/MEDLINE, Science Direct, Scopus and Web of Science. The QUADAS-2 checklist was used to assess the methodology of the studies included. RESULTS: Thirty-eight assessments were performed in 11 articles according to age, sex and weight status. Using sensitivity and specificity, 27 assessments (71.0%) considered NC an accurate measure to diagnose overweight and obesity. The best sensitivity and specificity were found for the age >19 years (82.0%, 82.0%), female (80.0%, 73.0%), and obese (80.0%, 85.0%) categories. CONCLUSION: NC is an accurate tool for assessing overweight and obesity in males and females of different age groups and could be used to screen for excess body weight in routine medical practice or epidemiological studies. It is also believed that more studies will permit the creation of a reference dataset of NC cut-off values for world populations. PMID- 29037079 TI - Development of novel adjustable focus head mount display for concurrent image guided treatment applications. AB - PURPOSE: A conventional see-through head mount display contains many optical lenses, which can be problematic in image-guided treatment applications due to its size, weight, structure, and focus limitation. Therefore, we have designed a new type of see-through head mount display with a reduced number of optical lenses and an adequate optical resolution that can be utilized for image-guided treatment applications. MATERIALS AND METHODS: A new type of adjustable focus head mount display with expanded virtual images and an external treatment space that can be provided to the eyes of a user by enlarging the images of a small display is designed and investigated in this study. This type of head mount display can be used in image-guided treatment applications because of the dual paths of imaging and treatment from the optical systems. Therefore, this system with an adjustable focus function can aid doctors in obtaining images for the treatment of the eyes of patients because every patient has a unique pupil size. RESULTS: The results of the adjustable focus see-through head mount display showed distortion values of +0.36% in the +1 diopter location and -0.55% in the 4 diopter location, and there are less significant modulation transfer function differences within the +/-5 diopter locations. CONCLUSIONS: Low optical distortions within +/-0.5 diopters can help doctors image the eye conditions of patients through fewer image processing techniques. Therefore, the designed adjustable focus head mount display can provide low optical aberrations and high optical modulation transfer function resolutions for image-guided treatment applications. PMID- 29037081 TI - Editorial Comment on: In Vitro Comparison of Stone Fragmentation When Using Various Settings with Modern Variable Pulse Holmium Lasers by Bell et al. (From: Bell JR, Penniston KL, Nakada SY, J Endourol 2017;31:1067-1072). PMID- 29037083 TI - Cervical cancer histology image identification method based on texture and lesion area features. AB - The issue of an automated approach for detecting cervical cancer is proposed to improve the accuracy of recognition. Firstly, the cervical cancer histology source images are needed to use image preprocessing for reducing the impact brought by noise of images as well as the impact on subsequent precise feature extraction brought by irrelevant background. Secondly, the images are grouped into ten vertical images and the information of texture feature is extracted by Grey Level Co-occurrence Matrix (GLCM). GLCM is an effective tool to analyze the features of texture. The textures of different diseases in the source image of Cervical Cancer Histology (such as contrast, correlation, entropy, uniformity and energy, etc.) can all be obtained in this way. Thirdly, the image is segmented by using K-means clustering and Marker-controlled watershed Algorithm. And each vertical image is divided into three layers to calculate the areas of different layers. Based on GLCM and lesion area features, the tissues are investigated with segmentation by using Support Vector Machine (SVM) method. Finally, the results show that it is effective and feasible to recognize cervical cancer by automated approach and verified by experiment. PMID- 29037082 TI - The D313Y variant in the GLA gene - no evidence of a pathogenic role in Fabry disease. AB - Fabry disease is an X- linked inherited lysosomal storage disease caused by mutations in the GLA gene encoding the lysosomal enzyme alpha-galactosidase A (alpha-Gal A). The possible pathological significance of the D313Y variant in the GLA gene has not been verified and it may be a Fabry variant. Our aim was to elucidate whether the presence of the D313Y variant influenced the alpha-Gal A activity or resulted in Fabry symptoms or Fabry organ involvement. In two Danish families the presence of the D313Y variant did not result in reduced alpha-Gal A activity or clinical Fabry manifestations in males, and the presence in Fabry females did not significantly enhance the phenotype of a known causative mutation in the GLA gene (G271S). Our findings indicate that the D313Y variant is not causative to nor enhancing Fabry disease phenotype. The D313Y variant in the GLA gene was not disease causative in 2 Danish families. Investigating male family members were crucial in excluding the Fabry phenotype, and thus very important for proper genetic counceling of all family members, as well as overdiagnosing a devastating genetic disease. PMID- 29037085 TI - Luteal phase serum progesterone levels after GnRH-agonist trigger - how low is still high enough for an ongoing pregnancy? AB - In the past years, individualization of assisted reproductive technique (ART) treatment is increasingly common to customize the treatment protocol to the patient's specific conditions. The use of GnRH-agonist for final oocyte maturation in a gonadotropin-releasing hormone (GnRH)-antagonist protocol is the best approach to reduce the risk for ovarian hyperstimulation in high responder patients. However, due to severe luteolysis, the reproductive outcome with this approach in combination with the use of vaginal progesterone as luteal phase support, was poor. Cycle segmentation as alternative to a fresh transfer requires embryo freezing which might not be applicable to all patients due to various reasons. The concept of luteal coasting monitors the progesterone-level closely and human chorionic gonadotropin (hCG) for rescue of the corpora lutea is administered when the progesterone-level drops below a certain threshold. However, the lower range of progesterone levels in the early luteal phase after GnRH-agonist trigger, which is compatible with achieving and maintaining a pregnancy, is unknown. This case-series demonstrates, that ongoing pregnancies can be achieved even with a progesterone-level below 15 ng/ml in the early luteal phase with the timely administration of an hCG-rescue bolus. With the concept of luteal coasting, individualization of the luteal phase support according to the patient's specific luteolysis pattern is possible. PMID- 29037084 TI - Electron Paramagnetic Resonance Measurements of Reactive Oxygen Species by Cyclic Hydroxylamine Spin Probes. AB - SIGNIFICANCE: Oxidative stress contributes to numerous pathophysiological conditions such as development of cancer, neurodegenerative, and cardiovascular diseases. A variety of measurements of oxidative stress markers in biological systems have been developed; however, many of these methods are not specific, can produce artifacts, and do not directly detect the free radicals and reactive oxygen species (ROS) that cause oxidative stress. Electron paramagnetic resonance (EPR) is a unique tool that allows direct measurements of free radical species. Cyclic hydroxylamines are useful and convenient molecular probes that readily react with ROS to produce stable nitroxide radicals, which can be quantitatively measured by EPR. In this work, we critically review recent applications of various cyclic hydroxylamine spin probes in biology to study oxidative stress, their advantages, and the shortcomings. Recent Advances: In the past decade, a number of new cyclic hydroxylamine spin probes have been developed and their successful application for ROS measurement using EPR has been published. These new state-of-the-art methods provide improved selectivity and sensitivity for in vitro and in vivo studies. CRITICAL ISSUES: Although cyclic hydroxylamine spin probes EPR application has been previously described, there has been lack of translation of these new methods into biomedical research, limiting their widespread use. This work summarizes "best practice" in applications of cyclic hydroxylamine spin probes to assist with EPR studies of oxidative stress. FUTURE DIRECTIONS: Additional studies to advance hydroxylamine spin probes from the "basic science" to biomedical applications are needed and could lead to better understanding of pathological conditions associated with oxidative stress. Antioxid. Redox Signal. 28, 1433-1443. PMID- 29037086 TI - Measles and rubella elimination: learning from polio eradication and moving forward with a diagonal approach. AB - INTRODUCTION: In 1988, an estimated 350,000 children were paralyzed by polio and 125 countries reported polio cases, the World Health Assembly passed a resolution to achieve polio eradication by 2000, and the Global Polio Eradication Initiative (GPEI) was established as a partnership focused on eradication. Today, following eradication efforts, polio cases have decreased >99% and eradication of all three types of wild polioviruses is approaching. However, since polio resources substantially support disease surveillance and other health programs, losing polio assets could reverse progress toward achieving Global Vaccine Action Plan goals. Areas covered: As the end of polio approaches and GPEI funds and capacity decrease, we document knowledge, experience, and lessons learned from 30 years of polio eradication. Expert commentary: Transitioning polio assets to measles and rubella (MR) elimination efforts would accelerate progress toward global vaccination coverage and equity. MR elimination feasibility and benefits have long been established. Focusing efforts on MR elimination after achieving polio eradication would make a permanent impact on reducing child mortality but should be done through a 'diagonal approach' of using measles disease transmission to identify areas possibly susceptible to other vaccine-preventable diseases and to strengthen the overall immunization and health systems to achieve disease specific goals. PMID- 29037087 TI - A label-free technique for accurate detection of nucleic acid-based self-avoiding molecular recognition systems supplemented multiple cross-displacement amplification and nanoparticles based biosensor. AB - Here, we devised a novel isothermal technique on the basis of standard multiple cross-displacement amplification (MCDA), which is assisted with self-avoiding molecular recognition system (SAMRS) components and antarctic thermal-sensitive uracil-DNA-glycosylase enzyme (AUDG), termed AUDG-SAMRS-MCDA. To enable product detection on the dipsticks, we firstly developed an analysis strategy, which did not require the labelled primers or probes, and thus, the analysis system avoids the false-positive results arising from undesired hybridization (between two labelled primers, or the labelled probe and primer). The SAMRS components are incorporated into MCDA primers for improve the assay's specificity, which can prevent the false-positive results yielding from off-target hybrids, undesired interactions between (hetero-dimer) or within (self-dimerization) primers. Two additional components (AUDG enzyme and dUTP) were added into the reaction mixtures, which were used for removing the false-positive results generating from carryover contamination, and thus, the genuine positives results were produced from the amplification of target templates. For the demonstration, the label-free AUDG-SAMRS-MCDA technique was successfully applied to detect Pseudomonas aeruginosa from pure culture and blood samples. As a proof-of-concept technique, the label-free AUDG-SAMRS-MCDA method can be reconfigured to detect different target sequences by redesigning the specific primers. PMID- 29037088 TI - Physical fitness and prior physical activity are both associated with less cortisol secretion during psychosocial stress. AB - BACKGROUND: Evidence linking fitness and decreased psychosocial stress comes from studies of athletes and typically relies upon self-report measures. Furthermore, there is little evidence regarding the impact of physical activity (PA) prior to a stressor. The aims of this study were to determine whether fitness and prior PA influence cortisol concentrations during psychosocial stress. METHODS: Seventy five non-athletic participants took part in a submaximal walk prior to the Trier Social Stress Test for Groups (TSST-G). During the walk, fitness was assessed using heart rate (HR). A further 89 participants took part in the TSST-G without the walk. Stress responsiveness was assessed using salivary cortisol collected at 10-min intervals on seven occasions. RESULTS: Hierarchical multiple regression revealed that average walking HR accounted for 9% of the variance in cortisol secretion (P = .016), where a higher HR was associated with higher cortisol secretion. Between-subjects ANCOVA revealed that the walking group had a significantly lower cortisol secretion than the non-walking group (P = .009). CONCLUSIONS: These findings indicate that fitter individuals have reduced cortisol secretion during psychosocial stress. They also indicate that prior PA can reduce cortisol concentrations during psychosocial stress and are suggestive of a role of PA in reducing the impact of stress on health. PMID- 29037089 TI - Patient-Reported Outcomes in Nephrolithiasis: Can We Do Better? AB - PURPOSE: Nephrolithiasis contributes significantly to the worldwide healthcare burden. Patient-reported outcome measures (PROMs) are widely recognized as important outcome measures for patient-centered care. We sought to summarize what is currently known about PROMs in urinary stone disease and to characterize use of PROMs in randomized controlled trials (RCTs) for nephrolithiasis. MATERIALS AND METHODS: Health-related quality of life (HRQOL) in patients with nephrolithiasis is reviewed. A search of both MEDLINE and EMBASE databases for RCTs in nephrolithiasis was performed to assess utilization of PROMs in these trials. All searches were for articles published between 1990 and 2014. Two independent reviewers reviewed all abstracts to determine inclusion for full-text review, with disagreements reviewed by a separate arbitrator. RESULTS: Validated methods for collecting PROMs include symptom diaries, pain scales, and validated HRQOL instruments. HRQOL is impacted in patients with nephrolithiasis and may be related to gender, proximity of a recent colic episode, or treatment modality. One validated instrument has been created in the nephrolithiasis population, while a treatment-specific questionnaire on ureteral stents has also been developed. PROMs are variably reported in RCTs for nephrolithiasis. Few trials utilize validated HRQOL instruments and none utilizes a disease-specific instrument. CONCLUSIONS: HRQOL is diminished in patients with urolithiasis, especially in times near to an acute stone event. Only one validated HRQOL instrument exists specific to nephrolithiasis. No validated instrument exists to assess the outcomes from different management options for renal and ureteral stones. Development of condition-specific PROMs instruments should aim to account for the heterogeneous and episodic nature of the disease and its treatment. Effective reporting of PROMs is lacking in the RCTs for nephrolithiasis. Future RCTs for urolithiasis standardize reporting of PROMs. PMID- 29037090 TI - Prevention and the state of knowledge of tick-borne diseases among orienteers in Poland. PMID- 29037092 TI - Evidence-based interventions of dichotic listening training, compensatory strategies and combined therapies in managing pupils with auditory processing disorders. AB - OBJECTIVE: The need to develop a measure of managing children with a single profile of auditory processing disorders (APDs), and differentiate between true and artefactual improvements necessitated the study. The study also sought to determine the efficacy of interventions - both single and combined on APD, against no-treatment. DESIGN: A randomised controlled trial of interventions (RCT) was adopted. Participants were randomly allocated to each of the intervention groups or the no intervention group. The 10 weeks intervention included 45 minutes three times a week therapeutic intervention on listening with noise and sound localisation ability in the home and school environments. STUDY SAMPLE: 80 pupils (7-11 years) with a single profile of APD participated in the study. RESULTS: Treatments were effective on the cocktail party and sound localisation. The best result was realised with the combined therapy (CT), and there was no significant difference in performance in the remaining treatment groups. CONCLUSION: The intervention groups were beneficial to pupils with APD and should be adopted by clinicians. PMID- 29037094 TI - The importance of context in medical education program evaluation. PMID- 29037091 TI - An anthropometric survey of US pre-term and full-term neonates. AB - BACKGROUND: Anthropometric data prove valuable for screening and monitoring various medical conditions. In young infants, however, only weight, length and head circumference are represented in publicly accessible databases. AIM: To characterise length and circumferential measures in pre-term and full-term infants up to 90 days post-natal. SUBJECTS AND METHODS: In eight US medical centres, trained raters recorded humeral, ulnar, femoral, tibial and fibular lengths along with mid-upper arm, mid-thigh, chest, abdominal and neck circumference. Data were pooled by post-menstrual age into 1-week intervals and population curves created using the lambda, mu and sigma (LMS) method. Goodness of-fit was assessed by examining de-trended quantile-quantile plots, Q statistics and fitted centiles overlaid on empirical centiles. RESULTS: In total, 2097 infants were enrolled in this study with a mean +/- SD gestational age and post natal age of 37.1 +/- 3.3 weeks and 27.3 +/- 25.3 days, respectively. A re-scale option was used to describe all curves. The resultant models reliably characterised anthropometric measures from 33-52 weeks PMA, with less certainty at the extremes (27-55 weeks). CONCLUSION: The population curves generated under this investigation expand existing reference data on a comprehensive set of anthropometric traits in infants through the first 90 days post-natal. PMID- 29037093 TI - Less periprosthetic bone loss following the anterolateral approach to the hip compared with the direct lateral approach. AB - Background and purpose - The loss of bone mineral in the proximal femur following hip arthroplasty may increase the fracture risk around uncemented stems. We hypothesized that the surgical approach to the hip might influence bone mineral changes around the femoral stem in patients with a femoral neck fracture (FNF). Patients and methods - This was a pre-specified subgroup analysis (n = 51) of an ongoing randomized trial (n = 120) in patients with FNF. Participants were allocated to an uncemented hemiarthroplasty inserted through a direct lateral (Hardinge) approach or an anterolateral (modified Watson-Jones) approach. The 51 patients (mean age 83 (70-90) years, 33 women) were measured by dual-energy X-ray absorptiometry (DXA) to assess changes in periprosthetic bone mineral density (BMD). Results - The mean change in total BMD differed between groups at 12 months in favor of the anterolateral group (4.8%, 95% CI 0.0-9.6; p = 0.05). DXA at 3 months displayed BMD loss in the proximal Gruen zones in the lateral group compared with the anterolateral group. Zone 1 (-5.0% vs. 2.7%), zone 2 (-4.3% vs. 4.1%), zone 6 (-6.5% vs. 0.0%) and zone 7 (-11% vs. -2.4%, all p < 0.05). Interpretation - DXA measurements in this study indicate that surgical approach to the hip influences periprosthetic BMD. Clinical implications remain uncertain. Our conclusions should be interpreted with caution as we did not perform adjustments for multiple tests, possibly leading to inflation of false-positive findings. PMID- 29037095 TI - Biological dose and complication probabilities for the rectum and bladder based on linear energy transfer distributions in spot scanning proton therapy of prostate cancer. AB - BACKGROUND: The increased linear energy transfer (LET) at the end of the Bragg peak causes concern for an elevated and spatially varying relative biological effectiveness (RBE) of proton therapy (PT), often in or close to dose-limiting normal tissues. In this study, we investigated dose-averaged LET (LETd) distributions for spot scanning PT of prostate cancer patients using different beam angle configurations. In addition, we derived RBE-weighted (RBEw) dose distributions and related normal tissue complication probabilities (NTCPs) for the rectum and bladder. MATERIAL AND METHODS: A total of 21 spot scanning proton plans were created for each of six patients using a prescription dose of 78 Gy(RBE1.1), with each plan using two 'mirrored' beams with gantry angles from 110 degrees /250 degrees to 70 degrees /290 degrees , in steps of 2 degrees . Physical dose and LETd distributions were calculated as well as RBEw dose distributions using either RBE = 1.1 or three different variable RBE models. The resulting biological dose distributions were used as input to NTCP models for the rectum and bladder. RESULTS: For anterior oblique (AO) configurations, the rectum LETd volume and RBEw dose increased with increasing angles off the lateral opposing axis, with the RBEw rectum dose being higher than for all posterior oblique (PO) configurations. For PO configurations, the corresponding trend was seen for the bladder. Using variable RBE models, the rectum NTCPs were highest for the AO configurations with up to 3% for the 80 degrees /280 degrees configuration while the bladder NTCPs were highest for the PO configurations with up to 32% for the 100 degrees /260 degrees . The rectum D1cm3 constraint was fulfilled for most patients/configurations when using uniform RBE but not for any patient/configuration with variable RBE models. CONCLUSIONS: Compared to using constant RBE, the variable RBE models predicted increased biological doses to the rectum, bladder and prostate, which in turn lead to substantially higher estimated rectum and bladder NTCPs. PMID- 29037096 TI - Fluoride toothpastes containing micrometric or nano-sized sodium trimetaphosphate reduce enamel erosion in vitro. AB - OBJECTIVE: To evaluate the effect of fluoride toothpastes supplemented with micrometric or nano-sized sodium trimetaphosphate (TMP or TMPnano, respectively) on enamel erosion in vitro, as well as the influence of salivary acquired pellicle and saliva. MATERIAL AND METHODS: Bovine enamel blocks (n = 120) were randomly assigned into the following experimental toothpastes: no F/TMP/TMPnano (Placebo); 1100 ppm F (1100 ppm F); 1100 ppm F plus 3% TMP or 3% TMPnano (1100 TMP or 1100 TMPnano, respectively) and 5000 ppm F (5000 ppm F). Erosive challenge was performed by immersion of the blocks in citric acid for 5 min, followed by 2 h immersion in human or artificial saliva, 4*/day, during 5 days. After each erosive challenge, blocks were exposed to slurries of the toothpastes. Enamel erosion (um), surface hardness (SHf) and cross-sectional hardness (DeltaKHN) were analyzed as response variables and the data were submitted to two-way ANOVA, followed by the Student-Newman-Keuls test (p < .05). RESULTS: 1100 TMPnano significantly reduced enamel loss when compared to 1100 TMP (p = .002), reaching values similar to those promoted by 5000 ppm F (p = .96). 1100 ppm F presented significantly lower enamel loss than Placebo (p < .001), and higher than 1100 TMP (p < .001). Significantly higher SHf and lower DeltaKHN was observed for 1100 TMPnano and 5000 ppm F when compared with the other groups (p < .001). The type of saliva did not influence enamel erosion, SHf and DeltaKHN for the groups treated with TMP-containing toothpastes. CONCLUSION: The addition of 3% TMPnano to 1100 ppm F toothpastes significantly increases the protective effect against enamel erosion in vitro when compared with its counterparts with micrometric TMP or without TMP. This effect was not influenced by the presence of acquired enamel pellicle and saliva. PMID- 29037097 TI - Obstetrical and neonatal outcomes of pregnancies complicated by endometriosis. AB - OBJECTIVE: Endometriosis is defined as the presence of endometrial-like tissue outside the uterus, associated with pelvic pain and subfertility, affecting 0.6 10% of the general female population. The association between endometriosis and obstetrical outcomes is not well established. We aimed to evaluate whether endometriosis is associated with a higher incidence of obstetrical and neonatal complications. STUDY DESIGN: A retrospective cohort study of all deliveries in a university-affiliated tertiary hospital (2007-2014). Eligibility was limited to women with previously diagnosed endometriosis and singleton pregnancies. Fetuses or neonates diagnosed with structural or chromosomal anomalies were excluded. We compared labor and delivery outcomes and immediate neonatal outcomes among women with endometriosis compared with women without endometriosis. RESULTS: Overall, 61,535 deliveries were eligible for analysis, of which 135 (0.002%) had endometriosis. Women with in the endometriosis group were characterized by higher maternal age, lower parity and higher nulliparity rate, and an earlier gestational age at delivery. Women with endometriosis had higher rate of failure of induction of labor (aOR 5.2, 95%CI 1.8-14.9), cesarean delivery (aOR 5.0, 95%CI 3.3-7.4), postpartum hemorrhage (aOR 3.7, 95%CI 1.6-8.5), placenta accreta (aOR 6.24, 95%CI 2.20-17.67), postpartum hemoglobin <10 mg/dL (aOR 2.03, 95%CI 1.31-3.14), and packed cell transfusion (aOR 3.66, 95%CI 1.94-6.91). No significant differences in neonatal outcomes were observed. CONCLUSIONS: Endometriosis is associated with higher risk of cesarean delivery and postpartum hemorrhage. Our findings suggest appropriate preparations for delivery, such as uterotonic agents and blood products, should be considered in these women. PMID- 29037098 TI - How do formative objective structured clinical examinations drive learning? Analysis of residents' perceptions. AB - INTRODUCTION: Although several studies have explored the relationship between learning and written tests, little is understood about how performance-based examinations influence learning. The purpose of this study was to explore how a formative objective structured clinical examination (OSCE) drives learning. METHODS: We administered surveys to residents (n = 35) at three time points to determine if and how an OSCE influenced their learning: before and immediately following the OSCE, and after the distribution of their results. Differences in quantitative responses between high- and low-performing residents and across time were compared using repeated-measures ANOVA. Thematic analysis was used to analyze narrative comments. RESULTS: Participants' goals for the OSCE related to performance, mastery and feedback. Almost all participants reported that they had learned something from the OSCE (94%) and most participants generated learning goals after the OSCE (71%). High performers appeared to recognize the importance of content-related knowledge for scoring well before and after the OSCE, whereas low performers may have under-estimated its importance until after the examination. DISCUSSION: Participants viewed a formative OSCE as both a hurdle to overcome (assessment of learning) and an opportunity to learn (assessment for learning). Understanding how OSCEs influence study behavior can help guide the development of assessments that promote learning. PMID- 29037099 TI - Eosinophilic otitis media diagnosis using flow cytometric immunophenotyping. AB - OBJECTIVES: (1) To assess the ability of flow cytometric immunophenotyping to detect and quantitate eosinophils in patients with eosinophilic otitis media (EOM). (2) to evaluate the association of EOM to bronchial asthma. METHODS: Twenty-one patients with chronic otorrhea or middle ear effusion (MEE) were included in this prospective cohort study. Group I composed of 10 patients (14 ears) and associated to bronchial asthma. Group II included 11 patients (11 ears) without bronchial asthma. Samples of MEE were sent for flow cytometric analysis at initial presentation. Patients with positive eosinophils on flow cytometric immunophenotyping were analyzed after one-month course of dexamethasone eardrops. RESULTS: EOM was diagnosed in all patients of group I and in three patients of group II. The mean eosinophils percentage was 43.5% and 14.2% for group I and group II, respectively (p = .006). Those patients showed a significant response to dexamethasone eardrops, both on clinical examination and on flow cytometric analysis with a decrease in eosinophil levels post-treatment. However, this improvement was temporary and symptoms recurred after treatment cessation. Bronchial asthma was not associated to all patients with EOM. CONCLUSION: Diagnosis of EOM remained mostly clinical; flow cytometry immunophenotyping of MEE may be helpful as an additional tool in diagnosis and monitoring the response to treatment, particularly in non-asthmatic patients. PMID- 29037100 TI - Response from Original Authors - RE: Six novel rare nonsynonymous mutations for migraine without aura identified by exome sequencing. PMID- 29037102 TI - Complete hydatidiform moles are composed of paternal chromosomes and maternal mitochondria. AB - Mitochondrial DNA (mtDNA) and genomic DNA are produced in separate subcellular compartments. Human mtDNA is transmitted via maternal transmission in general. Complete hydatidiform moles (CHMs) represent major trophoblastic diseases that are cytogenetically exceptional because the chromosomal genomic DNA is derived only from sperm cells, making them strikingly different from normal concepti. However, few reports have described the mtDNA-transmission pattern in hydatidiform moles. To evaluate mtDNA transmission in androgenetic CHMs, we compared the sequences of hypervariable regions in 16 trios sets of mtDNAs from maternal, paternal, and villous samples of androgenetic CHMs diagnosed by short tandem repeat-polymorphism analysis. All mtDNAs in androgenetic CHMs were maternally derived, in line with the general human inheritance pattern. Three maternal mtDNAs were heteroplasmic. The heterozygous status of maternal mtDNA was reflected in villous tissue, in which variants status was also heterozygous. CHMs are composed of paternal chromosomes and maternal mitochondria. PMID- 29037101 TI - The potential of solanezumab and gantenerumab to prevent Alzheimer's disease in people with inherited mutations that cause its early onset. AB - INTRODUCTION: The recent failure of several clinical trials on anti-beta-amyloid (Abeta) drugs in Alzheimer's disease (AD) suggested earlier intervention in the disease course. Secondary prevention trials have been started in autosomal dominant AD (ADAD) individuals without cognitive dysfunction and in cognitively healthy subjects at risk of developing sporadic AD (SAD). Areas covered: Herein, the authors discuss prevention trials in ADAD and SAD, with a focus on the anti Abeta monoclonal antibodies solanezumab and gantenerumab presently in Phase III clinical development. These therapies are also being tested in the Dominantly Inherited Alzheimer's Network Trials Unit (DIAN-TU). Expert opinion: Anti-Abeta monoclonal antibodies are being tested in subjects at the preclinical stage of ADAD and even in symptom-free subjects at risk of developing SAD. The subsequent DIAN-TU Adaptive Prevention Trial is a 4-year study that will assess whether such biomarker effects may stop the progress of the AD process, preventing cognitive symptoms. The hope is to interfere in the disease course when it is not too late. A clinical success of these prevention trials would represent the proof of the Abeta hypothesis of AD. PMID- 29037103 TI - Ameliorative effect of myo-inositol on red blood cell alterations in polycystic ovary syndrome: in vitro study. AB - Polycystic ovary syndrome (PCOS)is a gynecological endocrine disorder which is associated with systemic inflammatory status inducing red blood cells (RBC) membrane alterations related to insulin resistance and testosterone levels which could be greatly improved by myo-inositol (MYO) uptake. In this study we aim to evaluate the effect of MYO in reducing oxidative-related alterations through in vitro study on PCOS RBC. Blood samples from two groups of volunteers, control group (CG, n = 12) and PCOS patient group (PG, n = 12), were analyzed for band 3 tyrosine phosphorylation (Tyr-P), high molecular weight aggregate (HMWA), IgG in RBC membranes, and glutathione (GSH) in cytosol, following O/N incubation in the presence or absence of MYO. PCOS RBC underwent oxidative stress as indicated by higher band 3 Tyr-P and HMWA and increased membrane bound autologous IgG. Twenty four hours (but not shorter time) MYO incubation, significantly improved both Tyr P level and HMWA formation and concomitant membrane IgG binding. However, no relevant modification of GSH content was detected. PCOS RBC membranes are characterized by increased oxidized level and enhanced sensitivity to oxidative injuries leading to potential premature RBC removal. MYO treatment is effective in reducing oxidative related abnormalities in PCOS patients probably restoring the inositol phospholipid pools of the membranes. PMID- 29037104 TI - High-magnitude head impact exposure in youth football. AB - OBJECTIVE Even in the absence of a clinically diagnosed concussion, research suggests that neurocognitive changes may develop in football players as a result of frequent head impacts that occur during football games and practices. The objectives of this study were to determine the specific situations in which high magnitude impacts (accelerations exceeding 40 g) occur in youth football games and practices and to assess how representative practice activities are of games with regard to high-magnitude head impact exposure. METHODS A total of 45 players (mean age 10.7 +/- 1.1 years) on 2 youth teams (Juniors [mean age 9.9 +/- 0.6 years; mean body mass 38.9 +/- 9.9 kg] and Seniors [mean age 11.9 +/- 0.6 years; mean body mass 51.4 +/- 11.8 kg]) wore helmets instrumented with accelerometer arrays to record head impact accelerations for all practices and games. Video recordings from practices and games were used to verify all high-magnitude head impacts, identify specific impact characteristics, and determine the amount of time spent in each activity. RESULTS A total of 7590 impacts were recorded, of which 571 resulted in high-magnitude head impact accelerations exceeding 40 g (8%). Impacts were characterized based on the position played by the team member who received the impact, the part of the field where the impact occurred, whether the impact occurred during a game or practice play, and the cause of the impact. High-magnitude impacts occurred most frequently in the open field in both games (59.4%) and practices (67.5%). "Back" position players experienced a greater proportion of high-magnitude head impacts than players at other positions. The 2 teams in this study structured their practice sessions similarly with respect to time spent in each drill, but impact rates differed for each drill between the teams. CONCLUSIONS High-magnitude head impact exposure in games and practice drills was quantified and used as the basis for comparison of exposure in the 2 settings. In this cohort, game impact rates exceeded those for practice. Back players, who were often positioned in the open field, were shown to experience elevated levels of head impact exposure relative to players at other positions. The analysis also suggests that practice intensity, which may be influenced by coaching style, may also affect high-magnitude head impact exposure. Future studies should investigate this aspect as a factor affecting head impact exposure. PMID- 29037105 TI - The role of female obesity on in vitro fertilization outcomes. AB - The aim of this review is to analyze the role of obesity on fertility outcome in women undergoing in vitro fertilization (IVF) with respect to clinical or live birth rates and pregnancy loss rates. Despite findings from several earlier and newer studies that obesity does not adversely affect pregnancy outcome in women attempting conception, numerous reports from mostly recent studies suggest that obesity undoubtedly impairs IVF outcomes. Obesity impairs ovarian responsiveness to gonadotrophin stimulation, requiring higher doses of medication, increased risk of cycle cancelation, pre-term delivery, low birth weight or miscarriage, and decreases implantation, clinical pregnancy or live birth rates compared to women of normal weight. The mechanisms underlying the adverse effects of female obesity on IVF outcome may be primarily explained by functional alterations to the hypothalamic-pituitary-ovarian axis. Additionally, obesity appears to affect deleteriously the number and quality of oocytes or embryos, and impairs endometrial decidualization which is necessary for uterine receptivity. Nevertheless, attaining normal body weight by the use of lifestyle modifications, including a healthy diet and exercise over time of several months before and during an IVF treatment, may be successful in achievement of gradual and sustainable weight loss with improvement of IVF outcome. PMID- 29037106 TI - Standard Versus Simplified Consent Materials for Biobank Participation: Differences in Patient Knowledge and Trial Accrual. AB - Replacing standard consent materials with simplified materials is a promising intervention to improve patient comprehension, but there is little evidence on its real-world implementation. We employed a sequential two-arm design to compare the effect of standard versus simplified consent materials on potential donors' understanding of biobank processes and their accrual to an active biobanking program. Participants were female patients of a California breast health clinic. Subjects from the simplified arm answered more items correctly ( p = .064), reported "don't know" for fewer items ( p = .077), and consented to donate to the biobank at higher rates ( p = .025) than those from the standard arm. Replacing an extant consent form with a simplified version is feasible and may benefit patient comprehension and study accrual. PMID- 29037108 TI - A workplace intervention program and the increase in HIV knowledge, perceived accessibility and use of condoms among young factory workers in Thailand. AB - Vulnerability to Human Immunodeficiency Virus (HIV) infection among factory workers is a global problem. This study investigated the effectiveness of an intervention to increase AIDS knowledge, perceived accessibility to condoms and condom use among young factory workers in Thailand. The intervention was a workplace program designed to engage the private sector in HIV prevention. A cross-sectional survey conducted in 2008 to measure program outcomes in factories in Thailand was used in this study. The workplace intervention included the development of policies for management of HIV-positive employees, training sessions for managers and workers, and distribution of educational materials and condoms. A multi-level analysis was used to investigate the effect of HIV/AIDS prevention program components at the workplace on HIV/AIDS knowledge, perceived accessibility to condoms and condom use with regular sexual partners among 699 young factory workers (aged 18-24 years), controlling for their individual socio demographic characteristics. Interventions related to the management and services component including workplace AIDS policy formulation, condom services programs and behavioral change campaigns were found to be significantly related to increased AIDS knowledge, perceived accessibility to condoms and condom use with regular partners. The effect of the HIV/AIDS training for managers, peer leaders and workers was positive but not statistically significant. With some revision of program components, scaling up of workplace interventions and the engagement of the private sector in HIV prevention should be seriously considered. PMID- 29037109 TI - The process of co-creating the interface for VENSTER, an interactive artwork for nursing home residents with dementia. AB - INTRODUCTION: Interactive art installations might engage nursing home residents with dementia. The main aim of this article was to describe the challenging design process of an interactive artwork for nursing home residents, in co creation with all stakeholders and to share the used methods and lessons learned. This process is illustrated by the design of the interface of VENSTER as a case. METHODS: Nursing home residents from the psychogeriatric ward, informal caregivers, client representatives, health care professionals and members of the management team were involved in the design process, which consisted of three phases: (1) identify requirements, (2) develop a prototype and (3) conduct usability tests. Several methods were used (e.g. guided co-creation sessions, "Wizard of Oz"). Each phase generated "lessons learned", which were used as the departure point of the next phase. RESULTS: Participants hardly paid attention to the installation and interface. There, however, seemed to be an untapped potential for creating an immersive experience by focussing more on the content itself as an interface (e.g. creating specific scenes with cues for interaction, scenes based on existing knowledge or prior experiences). "Fifteen lessons learned" which can potentially assist the design of an interactive artwork for nursing home residents suffering from dementia were derived from the design process. CONCLUSIONS: This description provides tools and best practices for stakeholders to make (better) informed choices during the creation of interactive artworks. It also illustrates how co-design can make the difference between designing a pleasurable experience and a meaningful one. Implications for rehabilitation Co-design with all stakeholders can make the difference between designing a pleasurable experience and a meaningful one. There seems to be an untapped potential for creating an immersive experience by focussing more on the content itself as an interface (e.g. creating specific scenes with cues for interaction, scenes based on existing knowledge or prior experiences). Content as an interface proved to be a crucial part of the overall user experience. The case study provides tools and best practices (15 "lessons learned") for stakeholders to make (better) informed choices during the creation of interactive artworks. PMID- 29037110 TI - Reuse of wastewaters on dyeing of polyester fabric with encapsulated disperse dye. AB - The textile industry can benefit from the use of microcapsules, both adding value to products through the production of technical or functional textiles and improving the processes in the production chain. Some applications have been widely explored in academic research, but many are not feasible for use in industrial scale. Thus, the aim of this study was to develop consistent and efficient methodologies for the encapsulation of active compounds commonly used in the textile industry, employing materials which are viable for large-scale application. In this study, polyurethane-urea microcapsules were formulated by interfacial polymerization and encapsulated with C.I Disperse Blue 60 for the dyeing of polyester fabric without the use of dispersing agents and other auxiliaries. The dyeing was carried out in a high temperature dyeing machine with a very simple dyebath, in which there are only dissolved dye molecules, microencapsulated dyes and the fabric. Additionally, the dyebath wastewaters were reused on a further dyeing as 100% bathwater and mixed with 50% distilled water. Colorimetric measurements show excellent colour removal in both samples. PMID- 29037107 TI - First-in-Man Evaluation of 124I-PGN650: A PET Tracer for Detecting Phosphatidylserine as a Biomarker of the Solid Tumor Microenvironment. AB - PURPOSE: PGN650 is a F(ab')2 antibody fragment that targets phosphatidylserine (PS), a marker normally absent that becomes exposed on tumor cells and tumor vasculature in response to oxidative stress and increases in response to therapy. PGN650 was labeled with 124I to create a positron emission tomography (PET) agent as an in vivo biomarker for tumor microenvironment and response to therapy. In this phase 0 study, we evaluated the pharmacokinetics, safety, radiation dosimetry, and tumor targeting of this tracer in a cohort of patients with cancer. METHODS: Eleven patients with known solid tumors received approximately 140 MBq (3.8 mCi) 124I-PGN650 intravenously and underwent positron emission tomography-computed tomography (PET/CT) approximately 1 hour, 3 hours, and either 24 hours or 48 hours later to establish tracer kinetics for the purpose of calculating radiation dosimetry (from integration of the organ time-activity curves and OLINDA/EXM using the adult male and female models). RESULTS: Known tumor foci demonstrated mildly increased uptake, with the highest activity at the latest imaging time. There were no unexpected adverse events. The liver was the organ receiving the highest radiation dose (0.77 mGy/MBq); the effective dose was 0.41 mSv/MBq. CONCLUSION: Although 124I-PGN650 is safe for human PET imaging, the tumor targeting with this agent in patients was less than previously observed in animal studies. PMID- 29037111 TI - Head and neck size and neck strength predict linear and rotational acceleration during purposeful soccer heading. AB - There is increasing societal concern about the long-term effects of repeated impacts from soccer heading, but there is little information about ways to reduce head impact severity. The purpose of this study was to identify factors that contribute to head acceleration during soccer heading. One-hundred soccer players completed 12 controlled soccer headers. Peak linear (PLA) and rotational (PRA) accelerations were measured using a triaxial accelerometer and gyroscope. Head acceleration contributing factors were grouped into 3 categories: size (head mass, neck girth), strength (sternocleidomastoid, upper trapezius) and technique [kinematics (trunk, head-to-trunk range-of-motion), sternocleidomastoid and upper trapezius activity]. Multiple regression analyses indicated size variables explained 22.1% of the variance in PLA and 23.3% of the variance in PRA; strength variables explained 13.3% of the variance in PLA and 17.2% of the variance in PRA; technique variables did not significantly predict PLA or PRA. These findings suggest that head and neck size and neck strength predict PLA and PRA. Anthropometric and neck strength measurements should be considered when determining an athlete's readiness to begin soccer heading. PMID- 29037112 TI - Peer-led, transformative learning approaches increase classroom engagement in care self-management classes during inpatient rehabilitation of individuals with spinal cord injury. AB - OBJECTIVE: Evaluate effects of revised education classes on classroom engagement during inpatient rehabilitation for individuals with spinal cord injury/disease (SCI/D). DESIGN: Multiple-baseline, quasi-experimental design with video recorded engagement observations during conventional and revised education classes; visual and statistical analysis of difference in positive engagement responses observed in classes using each approach. PARTICIPANTS/SETTING: 81 patients (72% male, 73% white, mean age 36 SD 15.6) admitted for SCI/D inpatient rehabilitation in a non profit rehabilitation hospital, who attended one or more of 33 care self management education classes that were video recorded. All study activities were approved by the host facility institutional review board. INTERVENTION: Conventional nurse-led self-management classes were replaced with revised peer led classes incorporating approaches to promote transformative learning. Revised classes were introduced across three subject areas in a step-wise fashion over 15 weeks. OUTCOME MEASURE: Positive engagement responses (asking questions, participating in discussion, gesturing, raising hand, or otherwise noting approval) were documented from video recordings of 14 conventional and 19 revised education classes. RESULTS: Significantly higher average (per patient per class) positive engagement responses were observed in the revised compared to conventional classes (p=0.008). CONCLUSION: Redesigning SCI inpatient rehabilitation care self-management classes to promote transformative learning increased patient engagement. Additional research is needed to examine longer term outcomes and replicability in other settings. PMID- 29037113 TI - Temporomandibular joint MR images: Incidental head and neck findings and pathologies. AB - OBJECTIVE: To report the number and frequency of incidental findings (IFs) detected during magnetic resonance (MR) imaging screening of the temporomandibular joint (TMJ) and to define related diseases. METHODS: Bilateral TMJ MR images in the sagittal and coronal sections, from 518 patients with TMJ symptoms were evaluated retrospectively. Patients who were diagnosed with IFs were sent for consultation and clarification of the findings. Patient age, gender, IFs, locations, and diseases were classified and noted. Results: Seventy eight (15%) patients were diagnosed with 117 IFs. Of them, 43 were diagnosed with a single IF, and 35 were diagnosed with more than one IF. The most frequent locations were paranasal sinuses and mastoid air cells. The most frequent diseases were inflammatory and cystic lesions. Discussion: While examining TMJ MR images, it is important to check for evidence of IFs or pathologies that may have mimicked signs and symptoms of TMJ disorders. PMID- 29037114 TI - Home-based hand rehabilitation with a robotic glove in hemiplegic patients after stroke: a pilot feasibility study. AB - OBJECTIVE: To evaluate the feasibility and safety of home rehabilitation of the hand using a robotic glove, and, in addition, its effectiveness, in hemiplegic patients after stroke. METHODS: In this non-randomized pilot study, 21 hemiplegic stroke patients (Ashworth spasticity index <= 3) were prescribed, after in hospital rehabilitation, a 2-month home-program of intensive hand training using the Gloreha Lite glove that provides computer-controlled passive mobilization of the fingers. Feasibility was measured by: number of patients who completed the home-program, minutes of exercise and number of sessions/patient performed. Safety was assessed by: hand pain with a visual analog scale (VAS), Ashworth spasticity index for finger flexors, opponents of the thumb and wrist flexors, and hand edema (circumference of forearm, wrist and fingers), measured at start (T0) and end (T1) of rehabilitation. Hand motor function (Motricity Index, MI), fine manual dexterity (Nine Hole Peg Test, NHPT) and strength (Grip test) were also measured at T0 and T1. RESULTS: Patients performed, over a mean period 56 (49-63) days, a total of 1699 (1353-2045) min/patient of exercise with Gloreha Lite, 5.1 (4.3-5.8) days/week. Seventeen patients (81%) completed the full program. The mean VAS score of hand pain, Ashworth spasticity index and hand edema did not change significantly at T1 compared to T0. The MI, NHPT and Grip test improved significantly (p = 0.0020, 0.0156 and 0.0024, respectively) compared to baseline. CONCLUSION: Gloreha Lite is feasible and safe for use in home rehabilitation. The efficacy data show a therapeutic effect which need to be confirmed by a randomized controlled study. PMID- 29037115 TI - Low subjective social status in the police is linked to health-relevant changes in diurnal salivary alpha-amylase activity in Swiss police officers. AB - The objective of this study was to assess basal autonomic nervous system (ANS) activity as a pathway linking subjective social status to health in a high-demand work environment. It was hypothesized that officers with a lower status experienced more chronic stress (higher basal ANS activity) and that chronic stress was related to more health problems. Fifty-six male and female Swiss police officers self-reported on subjective social status (country, community, friends, police) and their health (depression, post-traumatic stress, physical symptoms) and collected 12 saliva samples over two days for basal alpha-amylase activation (sAA) assessment. Multilevel regression analyses revealed that subjective social status in the police and physical symptoms explained a significant part of the variance in diurnal sAA activity patterns. The current findings support the idea that more narrowly defined subjective social status may be more closely linked to biological stress mechanisms. Additionally, sAA activity was specifically related to physical, but not mental health problems. These results suggest that subjective social status referencing one's work environment may be a promising early indicator of health-relevant changes in stress-related physiological systems. PMID- 29037116 TI - Relating physicochemical properties of alginate-HMP complexes to their performance as drug delivery systems. AB - This study aims to analyze the effect of physicochemical properties of alginate high methoxyl pectin (HMP) complexes on their performance as drug delivery systems. Rheology, textural properties and swelling behavior of alginate-HMP complexes were determined. HMP alone showed weak gelling ability. As ratio of alginate increased, gel capability, hardness and adhesiveness of gels increased, but swelling rate decreased. Bovine serum albumin (BSA) was used as a model drug and entrapped in the alginate-HMP beads. Morphology of beads was correlated with adhesiveness. Drug loading content and encapsulation efficiency were related to electrostatic interactions between BSA and alginate-HMP complexes. Drug release profiles were correlated with both texture and swelling properties of alginate HMP complexes and morphology of beads in simulated gastric fluids, while release in simulated intestinal fluids was affected by drug loading content. This study gives enlightenment that pre-selection of encapsulation materials may be achieved prior to encapsulation based on physicochemical properties of materials. PMID- 29037117 TI - Sialic Acid-Binding Immunoglobulin-Like Lectin1 as a Novel Predictive Biomarker for Relapse in Graves' Disease: A Multicenter Study. AB - BACKGROUND: There are currently no reliable biomarkers to predict relapse in Graves' disease (GD). In the present study, we investigated novel diagnostic biomarkers to predict the long-term remission of or relapse in GD. METHODS: A DNA microarray analysis was performed to examine gene expression in the peripheral leukocytes of a frequently relapsing patient with GD and a patient in long-term remission after the discontinuation of antithyroid drugs (ATDs). Based on the DNA microarray analysis, we focused on Sialic acid-binding immunoglobulin-like lectin1 (SIGLEC1) as a candidate novel biomarker to predict GD relapse. Three hundred and fifty-eight patients with GD in the thyroid clinics of four different hospitals in Japan were included in a cross-sectional study to establish whether SIGLEC1 mRNA levels distinguish GD relapse experience from long-term remission. An additional 55 patients with GD were enrolled in a prospective study to clarify whether SIGLEC1 mRNA levels at ATD discontinuation predict GD relapse. RESULTS: SIGLEC1 mRNA levels were significantly higher in patients with GD relapse experience than in those in long-term remission. Based on the receiver operating characteristic analysis, we found that high SIGLEC1 mRNA levels (>=258.9 copies) significantly distinguished GD relapse experience from long-term remission (p < 0.0001; sensitivity 66.7%, specificity 70.1%). In the prospective study, when the optimal cutoff value from the receiver operating characteristic curve analysis was applied to SIGLEC1 mRNA positivity at ATD discontinuation, SIGLEC1-positive patients (>=258.9 copies) showed a significantly higher cumulative risk of relapse than SIGLEC1-negative patients (<258.9 copies) (p = 0.022, the log-rank test). CONCLUSIONS: SIGLEC1 mRNA levels have potential as a novel predictive biomarker for GD relapse. PMID- 29037118 TI - Pre-season dietary intake of professional soccer players. AB - BACKGROUND: Despite the well-documented importance of nutrition in optimizing performance and health, the dietary intake of soccer players has attracted little attention. AIM: We aimed to assess the pre-season dietary intake of professional soccer players and its adequacy in macro and micronutrients. METHODS: The pre season dietary intake of 19 male athletes was assessed using a semi-structured 3 day food record. To determine dietary adequacy and excess, energy and macronutrient intake were compared with the Brazilian dietary reference values for athletes, and micronutrients were compared with the Estimated Average Requirement - EAR (minimum recommendation) and Tolerable Upper Intake Level - UL (maximum recommendation). RESULTS: Mean daily energy intake (40.74+/-12.81 kcal/kg) was adequate. However, there was a low carbohydrate intake (5.44+/-1.86 g/kg/day) and a high amount of protein and fat (1.91+/-0.75 and 1.27+/-0.50 g/kg/day, respectively). Sodium intake (3141.77+/-939.76 mg/day) was higher than UL (2300 mg/day), while the majority of players showed daily intake of vitamin A (74%), vitamin D (100%), folate (58%), calcium and magnesium (68%) below the EAR (625, 10 and 320 ug/day, 800 and 330 mg/day, respectively). CONCLUSION: The dietary intake of professional soccer players was adequate in energy, but inadequate in macro and micronutrients, which suggests the need to improve nutritional practices to sustain the physical demands of soccer during pre season. PMID- 29037119 TI - A qualitative study of new graduates' readiness to use nursing informatics in acute care settings: clinical nurse educators' perspectives. AB - BACKGROUND: There is an increase in demand for newly graduated nurses who are ready to use nursing informatics (NI) efficiently in technology-rich healthcare environments. However, the progress of embedding NI into curricula has been slow worldwide, and literature reports graduates are not ready to use NI tools effectively in the workplace, posing potential threats to patient safety. In the absence of National Standards for NI competencies, graduates' NI needs on entering the workplace need to be explored. AIM: To identify graduates' NI needs on entering the workplace in acute care settings from the perspectives of clinical nurse educators. METHODS: A qualitative study using interpretive description with one focus group of six clinical nurse educators was conducted. Clinical nurse educators who are significantly involved in supporting graduates from their first day in the workplace were purposively recruited. The focus group was audiotaped, transcribed verbatim and analysed using thematic analysis. RESULTS: Graduates were found to be inadequately prepared to use NI tools on entering the workplace. Inefficient hospital systems and a ward culture that was discouraging graduates' NI practice were identified as major barriers to the implementation of NI practice. Lack of exposure to specific hospital systems as undergraduates was also identified as a significant barrier to NI practice among graduates. CONCLUSIONS: As well as supporting the pre-existing studies on NI skills in graduates and barriers to graduates' NI practice, this current study identified the need for nursing schools to further integrate NI into formal curricula and increased opportunity for exposure to hospital systems as undergraduates. Further studies in multiple settings across Australia are recommended to ensure the transferability of the findings of this study. PMID- 29037120 TI - Test anxiety and self-esteem in senior high school students: a cross-sectional study. AB - PURPOSE: In this study, it is aimed to determine the level of test anxiety and self-esteem in the high school students preparing for the university exam in Bitlis, Turkey, and to investigate the effect of test anxiety on self-esteem. MATERIAL AND METHODS: Seven-hundred and twenty-four high school students who were preparing for the university entrance examination in Bitlis participated in the study. A questionnaire which includes socio-demographic data form, Rosenberg Self Esteem Scale and Revised Test Anxiety Scale was prepared as an e-questionnaire for the students to fill easily and uploaded to the Bitlis State Hospital's website. Schools were called and informed for the students to fill out the e questionnaire on the Internet. RESULTS: The most important findings from our study are that gender is influential on test anxiety and self-esteem score and test anxiety level are negatively correlated. It was observed that female students had more test anxiety than male students and those who had higher self esteem had less test anxiety. CONCLUSION: Consequently, our study shows that university entrance examination creates anxiety on students and reduces self esteem, especially in female students. PMID- 29037121 TI - Predicting Injury Severity and Neurological Recovery after Acute Cervical Spinal Cord Injury: A Comparison of Cerebrospinal Fluid and Magnetic Resonance Imaging Biomarkers. AB - Biomarkers of acute human spinal cord injury (SCI) could provide a more objective measure of spinal cord damage and a better predictor of neurological outcome than current standardized neurological assessments. In SCI, there is growing interest in establishing biomarkers from cerebrospinal fluid (CSF) and from magnetic resonance imaging (MRI). Here, we compared the ability of CSF and MRI biomarkers to classify injury severity and predict neurological recovery in a cohort of acute cervical SCI patients. CSF samples and MRI scans from 36 acute cervical SCI patients were examined. From the CSF samples taken 24 h post-injury, the concentrations of inflammatory cytokines (interleukin [IL]-6, IL-8, monocyte chemotactic protein-1), and structural proteins (tau, glial fibrillary acidic protein, and S100beta) were measured. From the pre-operative MRI scans, we measured intramedullary lesion length, hematoma length, hematoma extent, CSF effacement, cord expansion, and maximal spinal cord compression. Baseline and 6 month post-injury assessments of American Spine Injury Association Impairment Scale (AIS) grade and motor score were conducted. Both MRI measures and CSF biomarker levels were found to correlate with baseline injury grade, and in combination they provided a stronger model for classifying baseline AIS grade than CSF or MRI biomarkers alone. For predicting neurological recovery, the inflammatory CSF biomarkers best predicted AIS grade conversion, whereas structural biomarker levels best predicted motor score improvement. A logistic regression model utilizing CSF biomarkers alone had a 91.2% accuracy at predicting AIS conversion, and was not strengthened by adding MRI features or even knowledge of the baseline AIS grade. In a direct comparison of MRI and CSF biomarkers, the CSF biomarkers discriminate better between different injury severities, and are stronger predictors of neurological recovery in terms of AIS grade and motor score improvement. These findings demonstrate the utility of measuring the acute biological responses to SCI as biomarkers of injury severity and neurological prognosis. PMID- 29037122 TI - Obtaining edaphic biostimulants/biofertilizers from sewage sludge using fermentative processes. Short-time effects on soil biochemical properties. AB - In this manuscript, we study the manufacture and effect on soils of different edaphic biostimulants/biofertilizers (BS) obtained from sewage sludge using Bacillus licheniformis as biological tool. These BS consist of different combinations of organic matter, bacteria and enzymes that were subjected to several treatments. These BS were applied in soil in order to observe their influence on the biochemical properties (enzymatic activities and ergosterol content). Dehydrogenase, urease, beta-glucosidase, phosphatase activities and ergosterol content were measured at different incubation days. Only dehydrogenase activity and ergosterol content were significantly stimulated after the application of BS1 and BS4. Rest of the extracellular activities were not stimulated probably because B. licheniformis practically has digested all organic substrates during fermentation process. PMID- 29037124 TI - Effects of different wastewater characteristics and treatment techniques on the bacterial community structure in three pharmaceutical wastewater treatment systems. AB - Pharmaceutical wastewater is a typical type of wastewater with high concentrations of organic pollutants, but research on this subject is limited. The aeration tanks of three different pharmaceutical wastewater treatment systems were seeded with the same inocula and stably operated for 40 days. Then, aerobic sludge samples from the three aeration tanks were collected to provide insight into the bacterial community composition of the activated sludges. Additionally, we investigated the effects of wastewater characteristics and the type and operation of the technological system on the microbial communities. High throughput sequencing analysis demonstrated that the communities enriched in the three reactors had differing. The dominant phyla detected were Proteobacteria, Chloroflexi, Bacteroidetes and candidate division TM7, while the dominant clones were uncultured Candidatus Saccharibacteria bacterium, uncultured Saprospiraceae bacterium, PHOS-HE51(AF314433.1), uncultured Anaerolineaceae bacterium and Blastocatella, suggesting their importance in pharmaceutical wastewater treatment plants. According to the wastewater parameters and canonical correspondence analyses, we can conclude that uncultured Candidatus Saccharibacteria bacterium, uncultured Anaerolineaceae bacterium and Blastocatella contribute to ammonium nitrogen ([Formula: see text]) removal; uncultured Saprospiraceae bacterium plays an important role in treating nitrogen; and chemical oxygen demand and PHOS-HE51 contribute to total phosphorus removal. PMID- 29037123 TI - Ultrafine Particle Exposure Reveals the Importance of FOXO1/Notch Activation Complex for Vascular Regeneration. AB - AIMS: Redox active ultrafine particles (UFP, d < 0.2 MUm) promote vascular oxidative stress and atherosclerosis. Notch signaling is intimately involved in vascular homeostasis, in which forkhead box O1 (FOXO1) acts as a co-activator of the Notch activation complex. We elucidated the importance of FOXO1/Notch transcriptional activation complex to restore vascular regeneration after UFP exposure. RESULTS: In a zebrafish model of tail injury and repair, transgenic Tg(fli1:GFP) embryos developed vascular regeneration at 3 days post amputation (dpa), whereas UFP exposure impaired regeneration (p < 0.05, n = 20 for control, n = 28 for UFP). UFP dose dependently reduced Notch reporter activity and Notch signaling-related genes (Dll4, JAG1, JAG2, Notch1b, Hey2, Hes1; p < 0.05, n = 3). In the transgenic Tg(tp1:GFP; flk1:mCherry) embryos, UFP attenuated endothelial Notch activity at the amputation site (p < 0.05 vs. wild type [WT], n = 20). A disintegrin and metalloproteinase domain-containing protein 10 (ADAM10) inhibitor or dominant negative (DN)-Notch1b messenger RNA (mRNA) disrupted the vascular network, whereas notch intracellular cytoplasmic domain (NICD) mRNA restored the vascular network (p < 0.05 vs. WT, n = 20). UFP reduced FOXO1 expression, but not Master-mind like 1 (MAML1) or NICD (p < 0.05, n = 3). Immunoprecipitation and immunofluorescence demonstrated that UFP attenuated FOXO1-mediated NICD pull-down and FOXO1/NICD co-localization, respectively (p < 0.05, n = 3). Although FOXO1 morpholino oligonucleotides (MOs) attenuated Notch activity, FOXO1 mRNA reversed UFP-mediated reduction in Notch activity to restore vascular regeneration and blood flow (p < 0.05 vs. WT, n = 5). Innovation and Conclusion: Our findings indicate the importance of the FOXO1/Notch activation complex to restore vascular regeneration after exposure to the redox active UFP. Antioxid. Redox Signal. 28, 1209-1223. PMID- 29037125 TI - Signature of genetic associations in oral cancer. AB - Oral cancer etiology is complex and controlled by multi-factorial events including genetic events. Candidate gene studies, genome-wide association studies, and next-generation sequencing identified various chromosomal loci to be associated with oral cancer. There is no available review that could give us the comprehensive picture of genetic loci identified to be associated with oral cancer by candidate gene studies-based, genome-wide association studies-based, and next-generation sequencing-based approaches. A systematic literature search was performed in the PubMed database to identify the loci associated with oral cancer by exclusive candidate gene studies-based, genome-wide association studies based, and next-generation sequencing-based study approaches. The information of loci associated with oral cancer is made online through the resource "ORNATE." Next, screening of the loci validated by candidate gene studies and next generation sequencing approach or by two independent studies within candidate gene studies or next-generation sequencing approaches were performed. A total of 264 loci were identified to be associated with oral cancer by candidate gene studies, genome-wide association studies, and next-generation sequencing approaches. In total, 28 loci, that is, 14q32.33 (AKT1), 5q22.2 (APC), 11q22.3 (ATM), 2q33.1 (CASP8), 11q13.3 (CCND1), 16q22.1 (CDH1), 9p21.3 (CDKN2A), 1q31.1 (COX-2), 7p11.2 (EGFR), 22q13.2 (EP300), 4q35.2 (FAT1), 4q31.3 (FBXW7), 4p16.3 (FGFR3), 1p13.3 (GSTM1-GSTT1), 11q13.2 (GSTP1), 11p15.5 (H-RAS), 3p25.3 (hOGG1), 1q32.1 (IL-10), 4q13.3 (IL-8), 12p12.1 (KRAS), 12q15 (MDM2), 12q13.12 (MLL2), 9q34.3 (NOTCH1), 17p13.1 (p53), 3q26.32 (PIK3CA), 10q23.31 (PTEN), 13q14.2 (RB1), and 5q14.2 (XRCC4), were validated to be associated with oral cancer. "ORNATE" gives a snapshot of genetic loci associated with oral cancer. All 28 loci were validated to be linked to oral cancer for which further fine-mapping followed by gene-by-gene and gene-environment interaction studies is needed to confirm their involvement in modifying oral cancer. PMID- 29037126 TI - DACT1 overexpression inhibits proliferation, enhances apoptosis, and increases daunorubicin chemosensitivity in KG-1alpha cells. AB - DACT1 has been shown to participate in the development of many types of tumors; however, its role and precise molecular mechanisms in leukemia are unclear. In this study, we investigated the effect of DACT1 on KG-1alpha leukemia cells to further understand the mechanisms of DACT1-mediated tumor suppression. We transfected a DACT1 expression plasmid to upregulate DACT1 in KG-1alpha cells and analyzed the resulting phenotypic changes. The results demonstrated that DACT1 overexpression inhibited KG-1alpha proliferation, increased apoptosis, and arrested cells in the G0/G1 phase. Mechanistically, DACT1 overexpression inhibited Wnt/beta-catenin signaling by reducing nuclear beta-catenin levels in KG-1alpha cells. Furthermore, the viability of KG-1alpha cells transfected with DACT1 was significantly reduced when treated with daunorubicin. We also found that DACT1 reduced P-glycoprotein expression in KG-1alpha cells. These findings revealed an inhibitory role for DACT1 in leukemogenesis and provided evidence that DACT1 is an attractive target for the development of novel anti-leukemia therapies. PMID- 29037127 TI - Role of molecular markers to predict distant metastasis in papillary thyroid carcinoma: Promising value of TERT promoter mutations and insignificant role of BRAF mutations-a meta-analysis. AB - The presence of distant metastasis is associated with an adverse outcome in papillary thyroid cancer. We performed a meta-analysis to investigate the role of molecular markers as predictors for distant metastasis in papillary thyroid cancer. Four electronic databases including PubMed, Web of Science, Scopus, and Virtual Health Library were searched, and odds ratio and its 95% confidence interval concerning the association of BRAF, RAS, and TERT promoter mutations and RET/PTC rearrangements with distant metastasis were calculated using random effects model. In total, 42 studies with 11,109 papillary thyroid cancers were included for meta-analyses. Overall, the presence of TERT promoter (odds ratio = 5.95; 95% confidence interval = 2.95-11.99), RAS mutations (odds ratio = 2.5; 95% confidence interval = 1.00-6.22), and RET/PTC rearrangements (odds ratio = 1.92; 95% confidence interval = 1.03-3.56) were found to be associated with a significantly increased risk for distant metastasis. BRAF mutations were not associated with an elevated risk for distant metastasis (odds ratio = 0.79; 95% confidence interval = 0.54-1.16). In conclusion, our study demonstrated the promising value of few molecular biomarkers, especially TERT promoter mutations in predicting distant metastasis in papillary thyroid cancers, while BRAF mutations showed no association with distant metastasis. Our study affirms the value of selected mutations for tumor risk stratification and assessment of patients' prognosis. PMID- 29037128 TI - Predictive value of secondary signs of obstruction in follow-up computed tomography of ureteral stones: a study with dynamic computed tomography. AB - OBJECTIVES: This study aimed to determine the ratio of obstruction and predictive values of secondary signs in follow-up computed tomography (CT) of ureterolithiasis patients; to correlate stone characteristics with obstruction; to compare enhancement of obstructed and non-obstructed kidneys; and to compare radiation dose of the dynamic CT protocol to an excretory-phase protocol. MATERIALS AND METHODS: This retrospective study assessed 49 follow-up CT scans of patients with remaining ureterolithiasis after a renal colic episode. Obstruction was measured as time taken to excretion of contrast medium in dynamic CT. Degree of secondary signs of obstruction was evaluated from the unenhanced CT. Data were collected on patients' gender and age, stone size and location, time from renal colic to follow-up, attenuation of the renal cortex and radiation dose. RESULTS: Obstruction was present in 28% (n = 14) at follow-up. Predictive values (sensitivity, specificity, positive predictive value, negative predictive value) were calculated for hydronephrosis (1.0, 0.63, 0.52, 1.0), hydroureter (1.0, 0.4, 0.4, 1.0), perirenal stranding (0.21, 0.94, 0.6, 0.75), Gerota's fascia (0.21, 0.97, 0.75, 0.76) and renal swelling (0.21, 0.97, 0.75, 0.76). Obstruction was not correlated with stone characteristics. Enhancement was lower in obstructed kidneys (p < 0.01). Radiation dose was reduced by 43% (1.8 mSv). CONCLUSIONS: Obstruction was found in 28% of patients. Secondary signs were scarce and of indeterminate value to the diagnosis of obstruction. The absence of hydronephrosis and hydroureter contradicted obstruction. Stone characteristics were not correlated with obstruction. Enhancement of the renal cortex was lower in obstructed kidneys. The dynamic protocol reduced the radiation dose. PMID- 29037129 TI - Enzymes Regulated via Cystathionine beta-Synthase Domains. AB - Cystathionine beta-synthase (CBS) domains discovered 20 years ago can bind different adenosine derivatives (AMP, ADP, ATP, S-adenosylmethionine, NAD, diadenosine polyphosphates) and thus regulate the activities of numerous proteins. Mutations in CBS domains of enzymes and membrane transporters are associated with several hereditary diseases. The regulatory unit is a quartet of CBS domains that belong to one or two polypeptides and usually form a conserved disk-like structure. CBS domains function as "internal inhibitors" in enzymes, and their bound ligands either amplify or attenuate the inhibitory effect. Recent studies have opened a way to understanding the structural basis of enzyme regulation via CBS domains and widened the list of their bound ligands. PMID- 29037130 TI - Molecular and Cellular Mechanisms of Sporadic Alzheimer's Disease: Studies on Rodent Models in vivo. AB - In this review, recent data are presented on molecular and cellular mechanisms of pathogenesis of the most widespread (about 95%) sporadic forms of Alzheimer's disease obtained on in vivo rodent models. Although none of the available models can fully reproduce the human disease, several key molecular mechanisms (such as dysfunction of neurotransmitter systems, especially of the acetylcholinergic system, beta-amyloid toxicity, oxidative stress, neuroinflammation, mitochondrial dysfunction, disturbances in neurotrophic systems) are confirmed with different models. Injection models, olfactory bulbectomy, and senescence accelerated OXYS rats are reviewed in detail. These three approaches to in vivo modeling of sporadic Alzheimer's disease have demonstrated a considerable similarity in molecular and cellular mechanisms of pathology development. Studies on these models provide complementary data, and each model possesses its specific advantages. A general analysis of the data reported for the three models provides a multifaceted and the currently most complete molecular picture of sporadic Alzheimer's disease. This is highly relevant also from the practical viewpoint because it creates a basis for elaboration and preclinical studies of means for treatment of this disease. PMID- 29037131 TI - Gene Regulation and Signal Transduction in the ICE-CBF-COR Signaling Pathway during Cold Stress in Plants. AB - Low temperature is an abiotic stress that adversely affects the growth and production of plants. Resistance and adaptation of plants to cold stress is dependent upon the activation of molecular networks and pathways involved in signal transduction and the regulation of cold-stress related genes. Because it has numerous and complex genes, regulation factors, and pathways, research on the ICE-CBF-COR signaling pathway is the most studied and detailed, which is thought to be rather important for cold resistance of plants. In this review, we focus on the function of each member, interrelation among members, and the influence of manipulators and repressors in the ICE-CBF-COR pathway. In addition, regulation and signal transduction concerning plant hormones, circadian clock, and light are discussed. The studies presented provide a detailed picture of the ICE-CBF-COR pathway. PMID- 29037133 TI - Crystal Structure of Wild-Type Centrin 1 from Mus musculus Occupied by Ca2. AB - Mus musculus centrin 1 (MmCen1) is located at the cilium of photoreceptor cells connecting the outer segment through signal transduction components to the metabolically active inner segment. In the cilium, MmCen1 is involved in the translocation of transducin between compartments as a result of photoreceptor activation. In this study, we report the crystal structure of wild-type MmCen1 and its Ca2+-binding properties using structure-based mutagenesis. The crystal structure exhibits three structural features, i.e. four Ca2+ equally occupied at each EF-hand motif, structural changes accompanying helix motion at the N- and C lobes, and adoption of N-C type dimerization when Ca2+ binds to EF-hand I and II in the N-lobe. The presence of MmCen1 dimers was confirmed in solution by native PAGE. Isothermal titration calorimetry data showed sequential binding of Ca2+ at four independent sites. Mutations S45A and D49A in EF-hand I alone disrupted the Ca2+-binding property of the wild-type protein. Based on the crystal structure of MmCen1, we suggest that a dimerization mode between the N- and C-lobes may be required by Ca2+ binding at the N-lobe. PMID- 29037132 TI - Expression of Hormonal Carcinogenesis Genes and Related Regulatory microRNAs in Uterus and Ovaries of DDT-Treated Female Rats. AB - The insecticide dichlorodiphenyltrichloroethane (DDT) is a nonmutagenic xenobiotic compound able to exert estrogen-like effects resulting in activation of estrogen receptor-alpha (ERalpha) followed by changed expression of its downstream target genes. In addition, studies performed over recent years suggest that DDT may also influence expression of microRNAs. However, an impact of DDT on expression of ER, microRNAs, and related target genes has not been fully elucidated. Here, using real-time PCR, we assessed changes in expression of key genes involved in hormonal carcinogenesis as well as potentially related regulatory oncogenic/tumor suppressor microRNAs and their target genes in the uterus and ovaries of female Wistar rats during single and chronic multiple-dose DDT exposure. We found that applying DDT results in altered expression of microRNAs-221, -222, -205, -126a, and -429, their target genes (Pten, Dicer1), as well as genes involved in hormonal carcinogenesis (Esr1, Pgr, Ccnd1, Cyp19a1). Notably, Cyp19a1 expression seems to be also regulated by microRNAs-221, -222, and -205. The data suggest that epigenetic effects induced by DDT as a potential carcinogen may be based on at least two mechanisms: (i) activation of ERalpha followed by altered expression of the target genes encoding receptor Pgr and Ccnd1 as well as impaired expression of Cyp19a1, affecting, thereby, cell hormone balance; and (ii) changed expression of microRNAs resulting in impaired expression of related target genes including reduced level of Cyp19a1 mRNA. PMID- 29037134 TI - Effect of Cyanide on Mitochondrial Membrane Depolarization Induced by Uncouplers. AB - In this work, it was found that the ability of common uncouplers - carbonyl cyanide p-trifluoromethoxyphenylhydrazone (FCCP) and 2,4-dinitrophenol (DNP) - to reduce membrane potential of isolated rat liver mitochondria was diminished in the presence of millimolar concentrations of the known cytochrome c oxidase inhibitor - cyanide. In the experiments, mitochondria were energized by addition of ATP in the presence of rotenone, inhibiting oxidation of endogenous substrates via respiratory complex I. Cyanide also reduced the uncoupling effect of FCCP and DNP on mitochondria energized by succinate in the presence of ferricyanide. Importantly, cyanide did not alter the protonophoric activity of FCCP and DNP in artificial bilayer lipid membranes. The causes of the effect of cyanide on the efficiency of protonophoric uncouplers in mitochondria are considered in the framework of the suggestion that conformational changes of membrane proteins could affect the state of lipids in their vicinity. In particular, changes in local microviscosity and vacuum permittivity could change the efficiency of protonophore-mediated translocation. PMID- 29037135 TI - Distinct Mechanisms of Phenotypic Effects of Inactivation and Prionization of Swi1 Protein in Saccharomyces cerevisiae. AB - Prions are proteins that under the same conditions can exist in two or more conformations, and at least one of the conformations has infectious properties. The prionization of a protein is typically accompanied by its functional inactivation due to sequestration of monomers by the prion aggregates. The most of prions has been identified in the yeast Saccharomyces cerevisiae. One of them is [SWI+], a prion isoform of the Swi1 protein, which is a component of the evolutionarily conserved chromatin remodeling complex SWI/SNF. Earlier, it was shown that the prionization of [SWI+] induces a nonsense suppression, which leads to weak growth of the [SWI+] strains containing mutant variants of the SUP35 gene and the nonsense allele ade1-14UGA on selective medium without adenine. This effect occurs because of [SWI+] induction that causes a decrease in the amount of the SUP45 mRNA. Strains carrying the SWI1 deletion exhibit significantly higher suppression of the ade1-14UGA nonsense mutation than the [SWI+] strains. In the present study, we identified genes whose expression is altered in the background of the SWI1 deletion using RNA sequencing. We found that the ade1-14UGA suppression in the swi1Delta strains is caused by an increase in the expression of this mutant allele of the ADE1 gene. At the same time, the SUP45 expression level in the swi1Delta strains does not significantly differ from the expression level of this gene in the [swi-] strains. Thus, we have shown that the phenotypic effects of Swi1 prionization and deletion are mediated by different molecular mechanisms. Based on these data, we have concluded that the prionization of proteins is not only unequal to their inactivation, but also can lead to the acquisition of novel phenotypic effects and functions. PMID- 29037136 TI - Effect of Priming of Multipotent Mesenchymal Stromal Cells with Interferon gamma on Their Immunomodulating Properties. AB - Multipotent mesenchymal stromal cells (MSCs) are widely used for cell therapy, in particular for prophylaxis and treatment of graft-versus-host disease. Due to their immunomodulatory properties, MSCs affect the composition of lymphocyte subpopulations, which depends on the immunological state of the organism and can change in different diseases and during treatment. Administration of MSCs is not always effective. Treatment of MSCs with different cytokines (in particular IFN gamma) leads to enhancement of their immunomodulatory properties. The aim of this study was to investigate subpopulational alterations and activation markers in lymphocytes (activated and non-activated) after interaction with MSCs and MSCs pretreated with IFN-gamma (gammaMSCs) in vitro. Lymphocytes were co-cultured with MSCs or gammaMSCs for 4 days. The proportion of CD4+ and CD8+ expressing CD25, CD38, CD69, HLA-DR, and PD-1 and distribution of memory and effector subsets were measured by flow cytometry after co-cultivation of lymphocytes with MSCs or gammaMSCs. The distribution of lymphocyte subpopulations changes during culturing. In non-activated lymphocytes cultured without MSCs, decrease in the proportion of naive cells and increase in the number of effector cells was observed. That could be explained as activation of lymphocytes in the presence of serum in culturing medium. Co-culturing of lymphocytes with MSCs and gammaMSCs leads to retention of their non-activated state. Activation of lymphocytes with phytohemagglutinin increases the number of central memory cells and activates marker expression. Interaction with MSCs and gammaMSCs prevents activation of lymphocytes and keeps their naive state. Priming with IFN-gamma did not induce MSCs inhibitory effect on activation of lymphocytes. PMID- 29037137 TI - Heterologous Expression of Chaperones from Hyperthermophilic Archaea Inhibits Aminoglycoside-Induced Protein Misfolding in Escherichia coli. AB - Aminoglycoside antibiotics affect protein translation fidelity and lead to protein aggregation and an increase in intracellular oxidative stress level as well. The overexpression of the chaperonin GroEL/GroES system promotes short-term tolerance to aminoglycosides in Escherichia coli. Here, we demonstrated that the coexpression of prefoldin or Hsp60 originating from the hyperthermophilic archaeon Pyrococcus furiosus in E. coli cells can rescue cell growth and inhibit protein aggregation induced by streptomycin exposure. The results of our study show that hyperthermophilic chaperones endow E. coli with a higher tolerance to streptomycin than the GroEL/GroES system, and that they exert better effects on the reduction of intracellular protein misfolding, indicating that these chaperones have unique features and functions. PMID- 29037139 TI - Analysis of Free Amino Acids in Mammalian Brain Extracts. AB - An optimized method for analysis of free amino acids using a modified lithium citrate buffer system with a Hitachi L-8800 amino acid analyzer is described. It demonstrates clear advantages over the sodium-citrate buffer system commonly used for the analysis of protein hydrolysates. A sample pretreatment technique for amino acid analysis of brain extracts is also discussed. The focus has been placed on the possibility of quantitative determination of the reduced form of glutathione (GSH) with simultaneous analysis of all other amino acids in brain extracts. The method was validated and calibration coefficient (KGSH) was determined. Examples of chromatographic separation of free amino acids in extracts derived from different parts of the brain are presented. PMID- 29037138 TI - N-Acetyl-L-cysteine in the Presence of Cu2+ Induces Oxidative Stress and Death of Granule Neurons in Dissociated Cultures of Rat Cerebellum. AB - Addition into the culture medium of the antioxidant N-acetylcysteine (NAC, 1 mM) in the presence of Cu2+ (0.0005-0.001 mM) induced intensive death of cultured rat cerebellar granule neurons, which was significantly decreased by the zinc ion chelator TPEN (N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine). However, the combined action of NAC and Zn2+ did not induce destruction of the neurons. Measurement of the relative intracellular concentration of Zn2+ with the fluorescent probe FluoZin-3 AM or of free radical production using a CellROX Green showed that incubation of the culture for 4 h with Cu2+ and NAC induced an intensive increase in the fluorescence of CellROX Green but not of FluoZin-3. Probably, the protective effect of TPEN in this case could be mediated by its ability to chelate Cu2+. Incubation of cultures in a balanced salt solution in the presence of 0.01 mM Cu2+ caused neuronal death already after 1 h if the NAC concentration in the solution was within 0.005-0.05 mM. NAC at higher concentrations (0.1-1 mM) together with 0.01 mM Cu2+ did not cause the death of neurons. These data imply that the antioxidant NAC can be potentially harmful to neurons even in the presence of nanomolar concentrations of variable valence metals. PMID- 29037140 TI - Blockade of Interleukin 6 by Rat Anti-mouse Interleukin 6 Receptor Antibody Promotes Fracture Healing. AB - Level of interleukin 6 (IL-6) is associated with fracture healing. This study was performed to explore the effect of IL-6 blockade on fracture healing. Clinical serum levels of IL-6 and tumor necrosis factor-alpha (TNF-alpha) were evaluated by enzyme-linked immunosorbent assay (ELISA). For animal experiments, the IL-6 levels after fracture and treatment with rat anti-mouse IL-6 receptor antibody (MR16-1) were assessed. Then, mice were assigned into four or seven groups: control group, fracture group, isotype IgG group, and MR16-1 groups. Serum levels of IL-6 and TNF-alpha, relative flexural rigidity, and mRNA levels of osteoblast specific genes were respectively assayed by ELISA, three-point bending test, and quantitative reverse transcription PCR (qRT-PCR). Serum levels of IL-6 and TNF alpha after fracture in humans and mice were increased. The increase in IL-6 and TNF-alpha levels in murine serum was attenuated by MR16-1 treatment. The three point bending test showed the relative flexural rigidity of the femur was decreased after fracture, whereas the decrease was alleviated by MR16-1 treatment. The qRT-PCR results demonstrated mRNA levels of osteoblast-specific genes were upregulated after fracture and then further upregulated by MR16-1 treatment in a dose-dependent manner. Collectively, the serum level of IL-6 was elevated after fracture both in clinical and murine samples. IL-6 blockade by MR16-1 promoted fracture healing, which might be associated with changes in expression of osteoblast-specific genes. PMID- 29037141 TI - Analysis of Four Circulating Complexes of Insulin-Like Growth Factor Binding Proteins in Human Blood during Aging. AB - The primary role of insulin-like growth factor binding proteins (IGFBPs) is to regulate availability of IGFs for interacting with receptors, but IGFBPs perform IGF-independent actions as well. The availability and activity of IGFBPs in the circulation is influenced primarily by their concentration and structural modifications, but possibly also by interaction with major plasma proteins such as transferrin, alpha-2-macroglobulin (alpha2M), and fibrinogen. Four types of circulating IGFBP complexes were examined in this study by immuno- and ligand binding assays in adults of different age. The amounts of IGFBP-3/transferrin and IGFBP-1/fibrinogen complexes were similar in middle- and old-aged persons, whereas the amounts of IGFBP-1 (or -2)/alpha2M monomer complexes were lower in the old-aged group and negatively correlated with total IGFBP-1 (or -2) amounts in blood. In contrast to IGFBP-1, IGFBP-2 was present in significantly greater quantities in complexes with alpha2M dimer than alpha2M monomer in older individuals. IGFBP complexes did not bind 125I-labeled IGF-I in amounts detectable by ligand blotting. According to the results of this study, the quantities of IGFBP-1 and IGFBP-2, which interact with alpha2M, are age-dependent and, in the case of complexes with alpha2M monomer, they are negatively correlated with the total circulating levels of these two IGFBPs. PMID- 29037142 TI - Enzyme-Substrate Reporters for Evaluation of Substrate Specificity of HIF Prolyl Hydroxylase Isoforms. AB - An organism naturally responds to hypoxia via stabilization of hypoxia-inducible factor (HIF). There are three isoforms of HIFalpha subunits whose stability is regulated by three isozymes of HIF prolyl hydroxylase (PHD1-3). Despite intense studies on recombinant enzyme isoforms using homogeneous activity assay, there is no consensus on the PHD isoform preference for the HIF isoform as a substrate. This work provides a new approach to the problem of substrate specificity using cell-based reporters expressing the enzyme and luciferase-labeled substrate pair encoded in the same expression vector. The cell is used as a microbioreactor for running the reaction between the overexpressed enzyme and substrate. Using this novel approach, no PHD3 activity toward HIF3 was demonstrated, indirectly pointing to the hydroxylation of the second proline in 564PYIP567 (HIF1) catalyzed by this isozyme. The use of "paired" enzyme-substrate reporters to evaluate the potency of "branched tail" oxyquinoline inhibitors of HIF PHD allows higher precision in revealing the optimal structural motif for each enzyme isoform. PMID- 29037143 TI - Erratum to: "How Fucose of Blood Group Glycotypes Programs Human Gut Microbiota" [Biochemistry (Moscow), 82, 973 (2017)]. AB - This corrects the article DOI: 10.1134/S0006297917090012. PMID- 29037144 TI - Trypanosoma cruzi specific mRNA amplification by in vitro transcription improves parasite transcriptomics in host-parasite RNA mixtures. AB - BACKGROUND: Trypanosomatids are a group of protozoan parasites that includes the etiologic agents of important human illnesses as Chagas disease, sleeping sickness and leishmaniasis. These parasites have a significant distinction from other eukaryotes concerning mRNA structure, since all mature mRNAs have an identical species-specific sequence of 39 nucleotides at the 5' extremity, named spliced leader (SL). Considering this peculiar aspect of trypanosomatid mRNA, the aim of the present work was to develop a Trypanosoma cruzi specific in vitro transcription (IVT) linear mRNA amplification method in order to improve parasite transcriptomics analyses. METHODS: We designed an oligonucleotide complementary to the last 21 bases of T. cruzi SL sequence, bearing an upstream T7 promoter (T7SL primer), which was used to direct the synthesis of second-strand cDNA. Original mRNA was then amplified by IVT using T7 RNA polymerase. T7SL-amplified RNA from two distinct T. cruzi stages (epimastigotes and trypomastigotes) were deep sequenced in SOLiD platform. Usual poly(A) + RNA and and T7-oligo(dT) amplified RNA (Eberwine method) were also sequenced. RNA-Seq reads were aligned to our new and improved T. cruzi Dm28c genome assembly (PacBio technology) and resulting transcriptome pattern from these three RNA preparation methods were compared, mainly concerning the conservation of mRNA transcritional levels and DEGs detection between epimastigotes and trypomastigotes. RESULTS: T7SL IVT method detected more potential differentially expressed genes in comparison to either poly(A) + RNA or T7dT IVT, and was also able to produce reliable quantifications of the parasite transcriptome down to 3 ng of total RNA. Furthermore, amplification of parasite mRNA in HeLa/epimastigote RNA mixtures showed that T7SL IVT generates transcriptome quantification with similar detection of differentially expressed genes when parasite RNA mass was only 0.1% of the total mixture (R = 0.78 when compared to poly(A) + RNA). CONCLUSIONS: The T7SL IVT amplification method presented here allows the detection of more potential parasite differentially expressed genes (in comparison to poly(A) + RNA) in host-parasite mixtures or samples with low amount of RNA. This method is especially useful for trypanosomatid transcriptomics because it produces less bias than PCR-based mRNA amplification. Additionally, by simply changing the complementary region of the T7SL primer, the present method can be applied to any trypanosomatid species. PMID- 29037145 TI - Generalized disequilibrium test for association in qualitative traits incorporating imprinting effects based on extended pedigrees. AB - BACKGROUND: For dichotomous traits, the generalized disequilibrium test with the moment estimate of the variance (GDT-ME) is a powerful family-based association method. Genomic imprinting is an important epigenetic phenomenon and currently, there has been increasing interest of incorporating imprinting to improve the test power of association analysis. However, GDT-ME does not take imprinting effects into account, and it has not been investigated whether it can be used for association analysis when the effects indeed exist. RESULTS: In this article, based on a novel decomposition of the genotype score according to the paternal or maternal source of the allele, we propose the generalized disequilibrium test with imprinting (GDTI) for complete pedigrees without any missing genotypes. Then, we extend GDTI and GDT-ME to accommodate incomplete pedigrees with some pedigrees having missing genotypes, by using a Monte Carlo (MC) sampling and estimation scheme to infer missing genotypes given available genotypes in each pedigree, denoted by MCGDTI and MCGDT-ME, respectively. The proposed GDTI and MCGDTI methods evaluate the differences of the paternal as well as maternal allele scores for all discordant relative pairs in a pedigree, including beyond first-degree relative pairs. Advantages of the proposed GDTI and MCGDTI test statistics over existing methods are demonstrated by simulation studies under various simulation settings and by application to the rheumatoid arthritis dataset. Simulation results show that the proposed tests control the size well under the null hypothesis of no association, and outperform the existing methods under various imprinting effect models. The existing GDT-ME and the proposed MCGDT-ME can be used to test for association even when imprinting effects exist. For the application to the rheumatoid arthritis data, compared to the existing methods, MCGDTI identifies more loci statistically significantly associated with the disease. CONCLUSIONS: Under complete and incomplete imprinting effect models, our proposed GDTI and MCGDTI methods, by considering the information on imprinting effects and all discordant relative pairs within each pedigree, outperform all the existing test statistics and MCGDTI can recapture much of the missing information. Therefore, MCGDTI is recommended in practice. PMID- 29037146 TI - Comparative genomic analyses highlight the contribution of pseudogenized protein coding genes to human lincRNAs. AB - BACKGROUND: The regulatory roles of long intergenic noncoding RNAs (lincRNAs) in humans have been revealed through the use of advanced sequencing technology. Recently, three possible scenarios of lincRNA origins have been proposed: de novo origination from intergenic regions, duplication from other long noncoding RNAs, and pseudogenization from protein-coding genes. The first two scenarios are largely studied and supported, yet few studies focused on the evolution from pseudogenized protein-coding sequence to lincRNA. Due to the non-mutually exclusive nature of these three scenarios and the need of systematic investigation of lincRNA origination, we conducted a comparative genomics study to investigate the evolution of human lincRNAs. RESULTS: Combining with syntenic analysis and stringent Blastn e-value cutoff, we found that the majority of lincRNAs are aligned to intergenic regions of other species. Interestingly, 193 human lincRNAs could have protein-coding orthologs in at least two of nine vertebrates. Transposable elements in these conserved regions in human genome are much less than expectation. Moreover, 19% of these lincRNAs have overlaps with or are close to pseudogenes in the human genome. CONCLUSIONS: We suggest that a notable portion of lincRNAs could be derived from pseudogenized protein-coding genes. Furthermore, based on our computational analysis, we hypothesize that a subset of these lincRNAs could have potential to regulate their paralogs by functioning as competing endogenous RNAs. Our results provide evolutionary evidence of the relationship between human lincRNAs and protein-coding genes. PMID- 29037147 TI - De novo assembly of genomes from long sequence reads reveals uncharted territories of Propionibacterium freudenreichii. AB - BACKGROUND: Propionibacterium freudenreichii is an industrially important bacterium granted the Generally Recognized as Safe (the GRAS) status, due to its long safe use in food bioprocesses. Despite the recognized role in the food industry and in the production of vitamin B12, as well as its documented health promoting potential, P. freudenreichii remained poorly characterised at the genomic level. At present, only three complete genome sequences are available for the species. RESULTS: We used the PacBio RS II sequencing platform to generate complete genomes of 20 P. freudenreichii strains and compared them in detail. Comparative analyses revealed both sequence conservation and genome organisational diversity among the strains. Assembly from long reads resulted in the discovery of additional circular elements: two putative conjugative plasmids and three active, lysogenic bacteriophages. It also permitted characterisation of the CRISPR-Cas systems. The use of the PacBio sequencing platform allowed identification of DNA modifications, which in turn allowed characterisation of the restriction-modification systems together with their recognition motifs. The observed genomic differences suggested strain variation in surface piliation and specific mucus binding, which were validated by experimental studies. The phenotypic characterisation displayed large diversity between the strains in ability to utilise a range of carbohydrates, to grow at unfavourable conditions and to form a biofilm. CONCLUSION: The complete genome sequencing allowed detailed characterisation of the industrially important species, P. freudenreichii by facilitating the discovery of previously unknown features. The results presented here lay a solid foundation for future genetic and functional genomic investigations of this actinobacterial species. PMID- 29037148 TI - Effectiveness of a PRECEDE-based education intervention on quality of life in elderly patients with chronic heart failure. AB - BACKGROUND: One of the most important challenges in public health is to improve the quality of life in patients with chronic heart failure (CHF). Depression, self-care capacity, and quality of life interact each other in these patients. It's difficult to treat with general education programs and conventional therapy. PRECEDE model is a comprehensive and exclusive theory-based education programs. Its effectiveness for reducing depression and increasing quality of life has been demonstrated in patients with coronary artery bypass grafting, type 2 diabetes, and the elderly. It has not been used in elderly patients with CHF. Thus, this study aims to investigate the effects of this model on self-care behaviors, depression, and quality of life in these patients. METHODS: Patients who met the inclusion criteria were randomly assigned to the intervention or control group. All the patients received conventional medical care. The patients in the intervention group also received 9 sessions of education intervention based on the PRECEDE model and then followed up for 3 months after the intervention. Data were collected before and 3 months after the intervention using 4 questionnaires, namely a PRECEDE-based questionnaire to evaluate predisposing, reinforcing, and enabling factors; the 9-item European Heart Failure Self-care Behavior Scale (EHFScBS-9); the 9-item Personal Health Questionnaire (PHQ-9); and the Minnesota Living with Heart Failure Questionnaire (MLHFQ). RESULTS: No significant differences were found in the mean scores for the predisposing, enabling, and reinforcing factors, and the mean total scores in EHFScBS-9, PHQ-9, and MLHFQ before the intervention between the intervention and control groups. After the intervention, the scores for the predisposing, reinforcing, and enabling factors increased significantly, and the mean total scores in EHFScBS-9, PHQ-9, and MLHFQ decreased significantly in the intervention group. In addition, these scores significantly differed from those of the control group. Furthermore, the MLHFQ score significantly correlated with the EHFScBS-9 and PHQ-9 scores. CONCLUSION: This study demonstrates a trend that PRECEDE model of health education promotion is effective in relieving depression symptoms, enhancing self-monitoring, and improving the quality of life of elderly patients with CHF. TRIAL REGISTRATION: Trial registration number: ChiCTR-IOR-17012779 ; Trial registry: Chinese Clinical Trial Registry; Date registered: 22 Sep 2017; Retrospectively registered. PMID- 29037149 TI - chngpt: threshold regression model estimation and inference. AB - BACKGROUND: Threshold regression models are a diverse set of non-regular regression models that all depend on change points or thresholds. They provide a simple but elegant and interpretable way to model certain kinds of nonlinear relationships between the outcome and a predictor. RESULTS: The R package chngpt provides both estimation and hypothesis testing functionalities for four common variants of threshold regression models. All allow for adjustment of additional covariates not subjected to thresholding. We demonstrate the consistency of the estimating procedures and the type 1 error rates of the testing procedures by Monte Carlo studies, and illustrate their practical uses using an example from the study of immune response biomarkers in the context of Mother-To-Child Transmission of HIV-1 viruses. CONCLUSION: chngpt makes several unique contributions to the software for threshold regression models and will make these models more accessible to practitioners interested in modeling threshold effects. PMID- 29037150 TI - Genome-wide trait-trait dynamics correlation study dissects the gene regulation pattern in maize kernels. AB - BACKGROUND: Dissecting the genetic basis and regulatory mechanisms for the biosynthesis and accumulation of nutrients in maize could lead to the improved nutritional quality of this crop. Gene expression is regulated at the genomic, transcriptional, and post-transcriptional levels, all of which can produce diversity among traits. However, the expression of most genes connected with a particular trait usually does not have a direct association with the variation of that trait. In addition, expression profiles of genes involved in a single pathway may vary as the intrinsic cellular state changes. To work around these issues, we utilized a statistical method, liquid association (LA) to investigate the complex pattern of gene regulation in maize kernels. RESULTS: We applied LA to the expression profiles of 28,769 genes to dissect dynamic trait-trait correlation patterns in maize kernels. Among the 1000 LA pairs (LAPs) with the largest LA scores, 686 LAPs were identified conditional correlation. We also identified 830 and 215 LA-scouting leaders based on the positive and negative LA scores, which were significantly enriched for some biological processes and molecular functions. Our analysis of the dynamic co-expression patterns in the carotene biosynthetic pathway clearly indicated the important role of lcyE, CYP97A, ZEP1, and VDE in this pathway, which may change the direction of carotene biosynthesis by controlling the influx and efflux of the substrate. The dynamic trait-trait correlation patterns between gene expression and oil concentration in the fatty acid metabolic pathway and its complex regulatory network were also assessed. 23 of 26 oil-associated genes were correlated with oil concentration conditioning on 580 LA-scoutinggenes, and 5% of these LA-scouting genes were annotated as enzymes in the oil metabolic pathway. CONCLUSIONS: By focusing on the carotenoid and oil biosynthetic pathways in maize, we showed that a genome wide LA analysis provides a novel and effective way to detect transcriptional regulatory relationships. This method will help us understand the biological role of maize kernel genes and will benefit maize breeding programs. PMID- 29037151 TI - Lipidomics analysis unravels the effect of nitrogen fertilization on lipid metabolism in tea plant (Camellia sinensis L.). AB - BACKGROUND: Nitrogen (N) plays an important role in the formation of tea quality related compounds, like amino acids and flavor/aroma origin compounds. Lipids, which have been reported to be affected by N deficiency, are precursors to the generation of flavor/aroma origin compounds in tea plant. However, there is no literature about the lipid profiles of tea plant affected by N fertilization. Hence, we hypothesize that the biosynthesis of flavor-related compounds in tea was affected by N through its regulation of lipid metabolism. RESULTS: In this study, mature leaves and new shoots of tea plant grown under three N levels at the rates of 0, 285 and 474 kg/ha were applied for ultra-performance liquid chromatography-mass spectrometry (UPLC/MS) based lipidomic analysis. Totally, 178 lipid species were identified. The results showed that the composition of lipid compounds in mature leaves and new shoots varied dramatically, which was also affected by N levels. The higher content of the storage lipid TAG and higher carbon (C)/N ratio in mature leaves than that of new shoots in tea plants grown under low N level (0 kg/ha) suggested that tea plants could remobilize the C stored in TAG to maintain their C/N balance and help to improve the quality of tea. N fertilization resulted in a higher content of the compounds 36:6 MGDG and 36:6 DGDG. Since these compounds contain linolenic acid (18:3), a precursor to the formation of aroma origin compounds, we suggested their increase could contribute to the quality of tea. CONCLUSIONS: Taken together, the present work indicated that appropriate application of N fertilizer could balance the lipid metabolism and the formation of flavor/aroma origin compounds, which help to improve the quality of tea. Moreover, excess N fertilization might deteriorate the aroma quality of made tea due to increases of precursors leading to grassy odor. PMID- 29037152 TI - Low plasma tryptophan is associated with olfactory function in healthy elderly community dwellers in Japan. AB - BACKGROUND: Decreased circulating tryptophan (Trp) levels are frequently observed in elderly patients with neurodegenerative disease including Alzheimer's disease. Trp may serve as a potential biomarker for monitoring disease risk in elderly people. We aimed to investigate the association between low plasma Trp levels and olfactory function, which is known to predict age-related diseases including dementia in elderly people. METHODS: A total of 144 healthy elderly Japanese community (>= 65 years old) dwellers from the Health, Aging and Nutritional Improvement study (HANI study) were the subjects of our analysis. Low Trp levels were classified using the lower limit values of the reference interval according to a previous report. Olfactory function was assessed using a card-type test called Open Essence, which includes 12 odour items that are familiar to Japanese people. The elderly subjects with low circulating Trp levels were compared to a control group with normal plasma Trp levels. RESULTS: We conducted the analyses using 144 people aged 65 years or older (mean age 73.7 +/- 5.5 years; 36.1% men). The subjects showed normal serum albumin levels (4.4 +/- 0.2 g/dL) and no daily living disabilities. Low plasma Trp levels (low Trp group) were found in 11.1% of the study population. The low Trp group showed a significantly lower correct answer rate for the items india ink, perfume, curry and sweaty smelling socks than control group (P < 0.05). There was also a significant association between low Trp levels and low olfactory ability, after adjusting for age and sex. CONCLUSIONS: Lower plasma Trp levels were associated with a decrease in olfactory function in functionally competent older individuals. Because olfactory dysfunction predicts age-related diseases, low plasma Trp levels may represent a clinical sign of disease risk in elderly people. PMID- 29037154 TI - An inappropriate pacing threshold increase after repeated electrical storm in a patient with implantable cardioverter defibrillator. AB - BACKGROUND: Implantable cardioverter defibrillators (ICD) are capable of effectively terminating malignant ventricular arrhythmia and are the most effective way to prevent sudden cardiac death. However, some evidences demonstrated that both anti-tachycardia pacing (ATP) and ICD shock can also bring adverse prognosis. CASE PRESENTATION: A 66-year-old Han Chinese man with prior ICD implantation was admitted to our hospital because of frequent ICD shocks. Although intravenous amiodarone and esmolol succinate were administered daily, the patient suffered 155 episodes of VT/VF during 8 weeks after implantation. After repeated discharge of the device, the pacing threshold of the patient increased gradually. Considering the inappropriate increase of the pacing threshold, we decided to reposition the right ventricular (RV) lead with good sensing and threshold parameters confirmed. Subsequent 22 months interrogation follow-up revealed a stable lead position and electrical specifications. Furthermore, antiarrhythmic drugs were maximally increased, while ATP burst was remarkably decreased and the inappropriate ICD shock never occurred until now. CONCLUSION: An inappropriate pacing threshold was increased secondary to repeated ICD electrical storm. A timely active lead position adjustment reduced the pacing threshold and eliminated the risk of premature battery depletion. PMID- 29037153 TI - Wound healing, calcium signaling, and other novel pathways are associated with the formation of butterfly eyespots. AB - BACKGROUND: One hypothesis surrounding the origin of novel traits is that they originate from the co-option of pre-existing genes or larger gene regulatory networks into novel developmental contexts. Insights into a trait's evolutionary origins can, thus, be gained via identification of the genes underlying trait development, and exploring whether those genes also function in other developmental contexts. Here we investigate the set of genes associated with the development of eyespot color patterns, a trait that originated once within the Nymphalid family of butterflies. Although several genes associated with eyespot development have been identified, the eyespot gene regulatory network remains largely unknown. RESULTS: In this study, next-generation sequencing and transcriptome analyses were used to identify a large set of genes associated with eyespot development of Bicyclus anynana butterflies, at 3-6 h after pupation, prior to the differentiation of the color rings. Eyespot-associated genes were identified by comparing the transcriptomes of homologous micro-dissected wing tissues that either develop or do not develop eyespots in wild-type and a mutant line of butterflies, Spotty, with extra eyespots. Overall, 186 genes were significantly up and down-regulated in wing tissues that develop eyespots compared to wing tissues that do not. Many of the differentially expressed genes have yet to be annotated. New signaling pathways, including the Toll, Fibroblast Growth Factor (FGF), extracellular signal-regulated kinase (ERK) and/or Jun N terminal kinase (JNK) signaling pathways are associated for the first time with eyespot development. In addition, several genes involved in wound healing and calcium signaling were also found to be associated with eyespots. CONCLUSIONS: Overall, this study provides the identity of many new genes and signaling pathways associated with eyespots, and suggests that the ancient wound healing gene regulatory network may have been co-opted to cells at the center of the pattern to aid in eyespot origins. New transcription factors that may be providing different identities to distinct wing sectors, and genes with sexually dimorphic expression in the eyespots were also identified. PMID- 29037156 TI - The association of obstructive sleep apnea and renal outcomes-a systematic review and meta-analysis. AB - BACKGROUND: The aim of this systematic review and meta-analysis was to summarize the association of obstructivesleep apnea (OSA) with renal outcome. METHODS: Our study followed the PRISMA guidelines. Two independent reviewers searched for relevant articles inthe databases of Pubmed, the Web of Science and CENTRAL, and conducted study selection and quality assessment. A random-effect model was used to estimate the effects. RESULTS: total of 1240 articles were initially identified (Pubmed = 568, Web of Science = 640, CENTRAL = 32). Afterremoval of duplicate articles (n = 415) and irrelevant articles (n = 788), 37 were selected for full-text review, and 18were finally included in the analysis. Overall, patients diagnosed with OSA were found to have a higher odds ratio (OR) of a poorer renal outcome, with a pooled OR of 1.77 (95% C.I.: 1.37-2.29). The significant association between OSA and a poorer renal outcome was not affected by the medical condition of diabetes mellitus (DM). In addition, we found that OSA was consistently associated with higher albuminuria/proteinuria and a lower estimated glomerular filtration rate (eGFR), with a pooled OR of 1.84 (95% C.I.: 1.24-2.73) and 1.60 (95% C.I.: 1.19-2.16), respectively. A greater OSA severity was also found to be related to a higher OR, with a mild group OR of 1.45 (95% C.I.: 1.19-1.77) and a moderate and severe group OR of 2.39 (95% C.I.: 1.96 2.90). CONCLUSIONS: Our study demonstrated that OSA is significantly associated with poorer renal function. PMID- 29037155 TI - Differences in handgrip strength protocols to identify sarcopenia and frailty - a systematic review. AB - BACKGROUND: Hand grip strength (HGS) is used for the diagnosis of sarcopenia and frailty. Several factors have been shown to influence HGS values during measurement. Therefore, variations in the protocols used to assess HGS, as part of the diagnosis of sarcopenia and frailty, may lead to the identification of different individuals with low HGS, introducing bias. The aim of this systematic review is to gather all the relevant studies that measured HGS to diagnose sarcopenia and frailty and to identify the differences between the protocols used. METHODS: A systematic review was carried out following the recommendations of The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement. PubMed and Web of Science were systematically searched, until August 16, 2016. The evidence regarding HGS measurement protocols used to diagnose sarcopenia and frailty was summarised and the most recent protocols regarding the procedure were compared. RESULTS: From the described search 4393 articles were identified. Seventy-two studies were included in this systematic review, in which 37 referred to sarcopenia articles, 33 to frailty and two evaluated both conditions. Most studies presented limited information regarding the protocols used. CONCLUSIONS: The majority of the studies included did not describe a complete procedure of HGS measurement. The high heterogeneity between the protocols used, in sarcopenia and frailty studies, create an enormous difficulty in drawing comparative conclusions among them. PMID- 29037157 TI - Gastrointestinal motility following thoracic surgery: the effect of thoracic epidural analgesia. A randomised controlled trial. AB - BACKGROUNDS: Impairment of gastrointestinal (GI) motility is an undesirable but inevitable consequence of surgery. This prospective randomised controlled study tested the hypothesis that postoperative thoracic epidural analgesia (TEA) with ropivacaine or a combination of ropivacaine and morphine accelerates postoperative GI function and shortens the duration of postoperative ileus following major thoracic surgery compared to intravenous (IV) morphine. METHODS: Thirty patients scheduled for major thoracic surgery were randomised to three groups. All patients had bowel motility assessments 1 week preoperatively. All patients received general anaesthesia. Group Ep-R received TEA with ropivacaine; group Ep-RM received TEA with ropivacaine and morphine and group IV-M received IV morphine via patient controlled analgesia pump (PCA). Bowel motility was assessed by clinical examination in addition to oro-ceacal transit time (OCTT) on the first and third postoperative days and colonic transit time (CTT). RESULTS: Overall the OCTT demonstrated a 2.5-fold decrease in bowel motility on the first postoperative day. The OCTT test revealed statistically significant differences between all groups (Ep-R vs Ep-RM, p = 0.43/Ep-R vs IV-M, p = 0.039 / Ep-RM vs IV M, p < 0.001). Also, very significant differences were found in the OCCT test between days (Ep-R vs Ep-RM, p < 0.001/Ep-R vs IV-M, p < 0.001 / Ep-RM vs IV-M, p = 0.014). There were no significant differences in the CTT test or the clinical signs between groups. However, 70% of the patients in the Ep-R group and 80% in the Ep-RM group defecated by the third day compared to only 10% in the IV-M group, (p = 0.004). CONCLUSIONS: Objective tests demonstrated the delayed motility of the whole GI system postoperatively following thoracic surgery. They also demonstrated that continuous epidural analgesia with or without morphine improved GI motility in comparison to intravenous morphine. These differences were more pronounced on the third postoperative day. TRIAL REGISTRATION: ISRCTN number: 11953159 , retrospectively registered on 20/03/2017. PMID- 29037159 TI - Bowel perforation by a peritoneal dialysis catheter: report of two cases. AB - BACKGROUND: Complications of peritoneal dialysis (PD) such as pain and catheter leakage are frequently reported. Delayed bowel perforation of a PD catheter is a rare adverse event but a serious complication associated with significant mortality. Bowel perforation of a PD catheter is difficult to differentiate from PD-related peritonitis and likely to result in a delay in diagnosis. Here, we report two cases of bowel perforation after PD catheter insertion by the stepwise initiation of PD using the Moncrief and Popovich technique (SMAP) and peritoneal wall anchor technique (PWAT). CASE PRESENTATION: The first case was a 53-year-old woman with end-stage renal disease (ESRD) due to diabetic nephropathy and a history of entero-adhesiolysis. She underwent PD catheter insertion by the SMAP with PWAT. Four months after PD catheter insertion, the catheter was found to perforate sigmoid colon. The second case was a 57-year-old woman with ESRD due to large polycystic kidney disease. She underwent the same procedure. After exteriorization of the catheter, she developed peritonitis due to perforation of the catheter tip into the bowel. Both patients were safely removed the catheter with uneventful recovery. CONCLUSION: We reported two cases of a rare complication of PD catheter. The SMAP method, PWAT, enlarged kidneys and migration of the lower cuff may be risk factors of bowel perforation of a PD catheter. PMID- 29037158 TI - Genomic divergence and cohesion in a species of pelagic freshwater bacteria. AB - BACKGROUND: In many prokaryotic genera a clustered phylogeny is observed, akin to the occurrence of species in sexually reproducing organisms. For some taxa, homologous recombination has been invoked as the underlying mechanism providing genomic cohesion among conspecific individuals. Whether this mechanism is applicable to prokaryotes in freshwaters with low habitat connectivity - i.e. elevated geographic barriers to gene flow - is unclear. To investigate further we studied genomic trends within the globally abundant PnecC cluster (genus Polynucleobacter, Betaproteobacteria) and analyzed homologous recombination within the affiliated species P. asymbioticus. RESULTS: Comparisons among 20 PnecC genomes revealed a clearly discontinuous distribution of nucleotide sequence similarities. Among the nine conspecific individuals (P. asymbioticus) all average nucleotide identity (ANI) values were greater than 97%, whereas all other comparisons exhibited ANI values lower than 85%. The reconstruction of recombination and mutation events for the P. asymbioticus core genomes yielded an r/m ratio of 7.4, which is clearly above estimated thresholds for recombination to act as a cohesive force. Hotspots of recombination were found to be located in the flanking regions of genomic islands. Even between geographically separated habitats a high flux of recombination was evident. While a biogeographic population structure was suggested from MLST data targeting rather conserved loci, such a structure was barely visible when whole genome data was considered. However, both MLST and whole genome data showed evidence of differentiation between two lineages of P. asymbioticus. The ratios of non-synonymous to synonymous substitution rates as well as growth rates in transplantation experiments suggested that this divergence was not selectively neutral. CONCLUSIONS: The high extent of homologous recombination among P. asymbioticus bacteria can act as a cohesive force that effectively counteracts genetic divergence. At least on a regional scale, homologous recombination can act across geographically separated ecosystems and therefore plays an important role in the evolution and consistency of bacterial freshwater species. A species model akin to the biological species concept may be applicable for P. asymbioticus. Nonetheless, two genetically distinct lineages have emerged and further research may clarify if their divergence has been initiated by reinforced geographical barriers or has been evolving in sympatry. PMID- 29037160 TI - "Homozygous, and compound heterozygous mutation in 3 Turkish family with Jervell and Lange-Nielsen syndrome: case reports". AB - BACKGROUND: Jervell and Lange-Nielsen syndrome (JLNS) isa recessive model of long QT syndrome which might also be related to possible hearing loss. Although the syndrome has been demonstrated to be originated from homozygous or compound heterozygous mutations in either the KCNQ1 or KCNE1 genes, additional mutations in other genetic loci should be considered, particularly in malignant course patients. CASE PRESENTATIONS: Three patients were admitted into hospital due to recurrent seizures/syncope, intrauterine and postnatal bradycardia respectively; moreover all three patients had congenital sensorineural hearing-loss. Their electrocardiograms showed markedly prolonged QT interval. Implantable defibrillator was implanted and left cardiac sympathetic denervation was performed due to the progressive disease in case 1. She had countless ventricular fibrillation and appropriate shock while using an implantable defibrillator. The DNA sequencing analysis of the KCNQ1 gene disclosed a homozygous c.728G > A (p.Arg243His) missense mutation in case1. Further targeted next generation sequencing of cardiac panel comprising 68 gene revealed a heterozygous c.1346 T > G (p.Ile449Arg) variant in RYR2 gene and a heterozygous c.809G > A (p.Cys270Tyr) variant in NKX2-5 gene in the same patient. Additional gene alterations in RYR2 and NKX2-5 genes were thought to be responsible for progressive and malignant course of the disease. As a result of DNA sequencing analysis of KCNQ1 and KCNE1 genes, a compound heterozygosity for two mutations had been detected in KCNQ1 gene in case 2: a maternally derived c.477 + 1G > A splice site mutation and a paternally derived c.520C > T (p.Arg174Cys) missense mutation. Sanger sequencing of KCNQ1 and KCNE1 genes displayed a homozygous c.1097G > A (p.Arg366Gln) mutation in KCNQ1 gene in case 3. beta-blocker therapy was initiated to all the index subjects. CONCLUSIONS: Three families of JLNS who presented with long QT and deafness and who carry homozygous, or compound heterozygous mutation in KCNQ1 gene were presented in this report. It was emphasized that broad targeted cardiac panels may be useful to predict the outcome especially in patients with unexplained phenotype-genotype correlation. Clinical presentations and molecular findings will be discussed further to clarify the phenotype genotype associations. PMID- 29037161 TI - Transcript expression plasticity as a response to alternative larval host plants in the speciation process of corn and rice strains of Spodoptera frugiperda. AB - BACKGROUND: Our main purpose was to evaluate the expression of plastic and evolved genes involved in ecological speciation in the noctuid moth Spodoptera frugiperda, the fall armyworm (FAW); and to demonstrate how host plants might influence lineage differentiation in this polyphagous insect. FAW is an important pest of several crops worldwide, and it is differentiated into host plant-related strains, corn (CS) and rice strains (RS). RNA-Seq and transcriptome characterization were applied to evaluate unbiased genetic expression differences in larvae from the two strains, fed on primary (corn) and alternative (rice) host plants. We consider that genes that are differently regulated by the same FAW strain, as a response to different hosts, are "plastic". Otherwise, differences in gene expression between the two strains fed on the same host are considered constitutive differences. RESULTS: Individual performance parameters (larval and pupal weight) varied among conditions (strains vs. hosts). A total of 3657 contigs was related to plastic response, and 2395 contigs were differentially regulated in the two strains feeding on preferential and alternative hosts (constitutive contigs). Three molecular functions were present in all comparisons, both down- and up-regulated: oxidoreductase activity, metal-ion binding, and hydrolase activity. CONCLUSIONS: Metabolization of foreign chemicals is among the key functions involved in the phenotypic variation of FAW strains. From an agricultural perspective, high plasticity in families of detoxifying genes indicates the capacity for a rapid response to control compounds such as insecticides. PMID- 29037162 TI - Feasibility of a multi-modal exercise program on cognition in older adults with Type 2 diabetes - a pilot randomised controlled trial. AB - BACKGROUND: Type 2 Diabetes (T2D) is associated with increased risk of dementia. We aimed to determine the feasibility of a randomised controlled trial (RCT) examining the efficacy of exercise on cognition and brain structure in people with T2D. METHODS: A 6-month pilot parallel RCT of a progressive aerobic- and resistance-training program versus a gentle movement control group in people with T2D aged 50-75 years (n = 50) at the University of Tasmania, Australia. Assessors were blinded to group allocation. Brain volume (total, white matter, hippocampus), cortical thickness and white matter microstructure (fractional anisotrophy and mean diffusivity) were measured using magnetic resonance imaging, and cognition using a battery of neuropsychological tests. Study design was assessed by any changes (during the pilot or recommended) to the protocol, recruitment by numbers screened and time to enrol 50 participants; randomisation by similarity of characteristics in groups at baseline, adherence by exercise class attendance; safety by number and description of adverse events and retention by numbers withdrawn. RESULTS: The mean age of participants was 66.2 (SD 4.9) years and 48% were women. There were no changes to the design during the study. A total of 114 people were screened for eligibility, with 50 participants with T2D enrolled over 8 months. Forty-seven participants (94%) completed the study (23 of 24 controls; 24 of 26 in the intervention group). Baseline characteristics were reasonably balanced between groups. Exercise class attendance was 79% for the intervention and 75% for the control group. There were 6 serious adverse events assessed as not or unlikely to be due to the intervention. Effect sizes for each outcome variable are provided. CONCLUSION: This study supports the feasibility of a large scale RCT to test the benefits of multi-modal exercise to prevent cognitive decline in people with T2D. Design changes to the future trial are provided. TRIAL REGISTRATION: ANZCTR 12614000222640 ; Registered 3/3/2014; First participant enrolled 26/6/2014, study screening commenced 1/9/2014; Australian and New Zealand Clinical Trial Registry. PMID- 29037163 TI - Diagnostic performance of various familial hypercholesterolaemia diagnostic criteria compared to Dutch lipid clinic criteria in an Asian population. AB - BACKGROUND: Familial hypercholesterolaemia (FH) is a genetic disorder with a high risk of developing premature coronary artery disease that should be diagnosed as early as possible. Several clinical diagnostic criteria for FH are available, with the Dutch Lipid Clinic Criteria (DLCC) being widely used. Information regarding diagnostic performances of the other criteria against the DLCC is scarce. We aimed to examine the diagnostic performance of the Simon-Broom (SB) Register criteria, the US Make Early Diagnosis to Prevent Early Deaths (US MEDPED) and the Japanese FH Management Criteria (JFHMC) compared to the DLCC. METHODS: Seven hundered fifty five individuals from specialist clinics and community health screenings with LDL-c level >= 4.0 mmol/L were selected and diagnosed as FH using the DLCC, the SB Register criteria, the US MEDPED and the JFHMC. The sensitivity, specificity, efficiency, positive and negative predictive values of individuals screened with the SB register criteria, US MEDPED and JFHMC were assessed against the DLCC. RESULTS: We found the SB register criteria identified more individuals with FH compared to the US MEDPED and the JFHMC (212 vs. 105 vs. 195; p < 0.001) when assessed against the DLCC. The SB Register criteria, the US MEDPED and the JFHMC had low sensitivity (51.1% vs. 25.3% vs. 47.0% respectively). The SB Register criteria showed better diagnostic performance than the other criteria with 98.8% specificity, 28.6% efficiency value, 98.1% and 62.3% for positive and negative predictive values respectively. CONCLUSION: The SB Register criteria appears to be more useful in identifying positive cases leading to genetic testing compared to the JFHMC and US MEDPED in this Asian population. However, further research looking into a suitable diagnosis criterion with high likelihood of positive genetic findings is required in the Asian population including in Malaysia. PMID- 29037164 TI - Local epidemiology and resistance profiles in acute uncomplicated cystitis (AUC) in women: a prospective cohort study in an urban urological ambulatory setting. AB - BACKGROUND: Acute uncomplicated cystitis (AUC) is a common ailment in the urological setting. Guidelines for urinary tract infections are based on large scale multi-centre, epidemiological and international studies. The objective of this observational study was to establish whether the results of a multi-centre study on the resistance profile of Escherichia coli (E. coli) in patients with AUC could be directly applied to an urological practice in a major European city or whether there are divergences in the resistance profile. METHODS: An observational study was applied prospectively to 502 patients with AUC between January 2015 and January 2017). Personal data were anonymised. Exclusion criteria were the patient's age (<18) and treatment with an antibiotic in the week preceding examination. RESULTS: The average age was 32 (range 18-56). The most commonly detected bacteria was E. coli with 86%, followed by Enterococcus faecalis with 10% and Klebsiella pneumoniae with 4%. Resistance tests showed E. coli to be highly sensitive to fosfomycin (99.2%), nitrofurantoin (98.1%) and cefpodoxime (92.9%). E. coli exhibited resistance to ciprofloxacin (CIP) in 15.1%, to trimethoprim/sulfamethoxazole (TRS) in 25.2% and to amoxicillin/clavulanic acid (AMC) in 34% of cases. CONCLUSION: The comparison between data from this study and data from a multi-centre European (ECO-SENSI, ECO-SENSII and the 2014 update) showed relatively good sensitivity rates for fosfomycin and nitrofurantoin but significant differences in respect of resistance levels to TRS, CIP and AMC. AUC should therefore only be treated with TRS, CIP and AMC after a susceptibility test has been carried out. PMID- 29037166 TI - TaFlo2-A1, an ortholog of rice Flo2, is associated with thousand grain weight in bread wheat (Triticum aestivum L.). AB - BACKGROUND: The Flo2 gene is a member of a conserved gene family in plants. This gene has been found to be related to thousand grain weight (TGW) in rice. Its orthologs in hexaploid wheat were cloned, and the haplotype variation in TaFlo2 A1 was tested for association with TGW. RESULTS: The cloned sequences of TaFlo2 A1, TaFlo2-B1 and TaFlo2-D1 contained 23, 23 and 24 exons, respectively. The deduced proteins of TaFlo2-A1 (1734 aa), TaFlo2-B1 (1698 aa) and TaFlo2-D1 (1682 aa) were highly similar (>94%) and exhibited >77% similarity with the rice FLO2 protein. Like the rice FLO2 protein, four tetratricopeptide repeat (TPR) motifs were observed in the deduced TaFLO2 protein. An 8-bp InDel (-10 to -17 bp) in the promoter region and five SNPs in first intron of TaFlo2-A1 together formed two haplotypes, TaFlo2-A1a and TaFlo2-A1b, in bread wheat. TaFlo2 was located on homeologous group 2 chromosomes. TaFlo2-A1 was inferred to be located on deletion bin '2AL1-0.85-1.00'. The TaFlo2-A1 haplotypes were characterized in the Chinese Micro Core Collection (MCC) and Pakistani wheat collection using the molecular marker TaFlo2-Indel8. TaFlo2-A1 was found to be associated with TGW but not with grain number per spike (GpS) in both the MCC and Pakistani wheat collections. The frequency of TaFlo2-A1b (positive haplotype) was low in commercial wheat cultivars; thus this haplotype can be selected to improve grain weight without negatively affecting GpS. The expression level of TaFlo2-A1 in developing grains at 5 DAF (days after flowering) was positively correlated with TGW in cultivars carrying the positive haplotype. CONCLUSION: This study will likely lead to additional investigations to understand the regulatory mechanism of the Flo2 gene in hexaploid wheat. Furthermore, the newly developed molecular marker 'TaFlo2 InDel8' could be incorporated into the kit of wheat breeders for use in marker assisted selection. PMID- 29037165 TI - Sequencing flow-sorted short arm of Haynaldia villosa chromosome 4V provides insights into its molecular structure and virtual gene order. AB - BACKGROUND: Haynaldia villosa (H. villosa) has been recognized as a species potentially useful for wheat improvement. The availability of its genomic sequences will boost its research and application. RESULTS: In this work, the short arm of H. villosa chromosome 4V (4VS) was sorted by flow cytometry and sequenced using Illumina platform. About 170.6 Mb assembled sequences were obtained. Further analysis showed that repetitive elements accounted for about 64.6% of 4VS, while the coding fraction, which is corresponding to 1977 annotated genes, represented 1.5% of the arm. The syntenic regions of the 4VS were searched and identified on wheat group 4 chromosomes 4AL, 4BS, 4DS, Brachypodium chromosomes 1 and 4, rice chromosomes 3 and 11, and sorghum chromosomes 1, 5 and 8. Based on genome-zipper analysis, a virtual gene order comprising 735 gene loci on 4VS genome was built by referring to the Brachypodium genome, which was relatively consistent with the scaffold order determined for Ae. tauschii chromosome 4D. The homologous alleles of several cloned genes on wheat group 4 chromosomes including Rht-1 gene were identified. CONCLUSIONS: The sequences provided valuable information for mapping and positional-cloning genes located on 4VS, such as the wheat yellow mosaic virus resistance gene Wss1. The work on 4VS provided detailed insights into the genome of H. villosa, and may also serve as a model for sequencing the remaining parts of H. villosa genome. PMID- 29037167 TI - Ancestry inference using principal component analysis and spatial analysis: a distance-based analysis to account for population substructure. AB - BACKGROUND: Accurate inference of genetic ancestry is of fundamental interest to many biomedical, forensic, and anthropological research areas. Genetic ancestry memberships may relate to genetic disease risks. In a genome association study, failing to account for differences in genetic ancestry between cases and controls may also lead to false-positive results. Although a number of strategies for inferring and taking into account the confounding effects of genetic ancestry are available, applying them to large studies (tens thousands samples) is challenging. The goal of this study is to develop an approach for inferring genetic ancestry of samples with unknown ancestry among closely related populations and to provide accurate estimates of ancestry for application to large-scale studies. METHODS: In this study we developed a novel distance-based approach, Ancestry Inference using Principal component analysis and Spatial analysis (AIPS) that incorporates an Inverse Distance Weighted (IDW) interpolation method from spatial analysis to assign individuals to population memberships. RESULTS: We demonstrate the benefits of AIPS in analyzing population substructure, specifically related to the four most commonly used tools EIGENSTRAT, STRUCTURE, fastSTRUCTURE, and ADMIXTURE using genotype data from various intra-European panels and European-Americans. While the aforementioned commonly used tools performed poorly in inferring ancestry from a large number of subpopulations, AIPS accurately distinguished variations between and within subpopulations. CONCLUSIONS: Our results show that AIPS can be applied to large scale data sets to discriminate the modest variability among intra-continental populations as well as for characterizing inter-continental variation. The method we developed will protect against spurious associations when mapping the genetic basis of a disease. Our approach is more accurate and computationally efficient method for inferring genetic ancestry in the large-scale genetic studies. PMID- 29037168 TI - Locating helicopter emergency medical service bases to optimise population coverage versus average response time. AB - BACKGROUND: New South Wales (NSW), Australia has a network of multirole retrieval physician staffed helicopter emergency medical services (HEMS) with seven bases servicing a jurisdiction with population concentrated along the eastern seaboard. The aim of this study was to estimate optimal HEMS base locations within NSW using advanced mathematical modelling techniques. METHODS: We used high resolution census population data for NSW from 2011 which divides the state into areas containing 200-800 people. Optimal HEMS base locations were estimated using the maximal covering location problem facility location optimization model and the average response time model, exploring the number of bases needed to cover various fractions of the population for a 45 min response time threshold or minimizing the overall average response time to all persons, both in green field scenarios and conditioning on the current base structure. We also developed a hybrid mathematical model where average response time was optimised based on minimum population coverage thresholds. RESULTS: Seven bases could cover 98% of the population within 45mins when optimised for coverage or reach the entire population of the state within an average of 21mins if optimised for response time. Given the existing bases, adding two bases could either increase the 45 min coverage from 91% to 97% or decrease the average response time from 21mins to 19mins. Adding a single specialist prehospital rapid response HEMS to the area of greatest population concentration decreased the average state wide response time by 4mins. The optimum seven base hybrid model that was able to cover 97.75% of the population within 45mins, and all of the population in an average response time of 18 mins included the rapid response HEMS model. CONCLUSIONS: HEMS base locations can be optimised based on either percentage of the population covered, or average response time to the entire population. We have also demonstrated a hybrid technique that optimizes response time for a given number of bases and minimum defined threshold of population coverage. Addition of specialized rapid response HEMS services to a system of multirole retrieval HEMS may reduce overall average response times by improving access in large urban areas. PMID- 29037169 TI - Left ventricular non-compaction cardiomyopathy with coronary artery anomaly complicated by ventricular tachycardia. AB - BACKGROUND: Non-compaction cardiomyopathy (NCCM) is characterized by prominent trabeculations, deep intertrabecular recesses, and a thick non-compacted endocardial myocardium. Prevalence in the general population remains unclear, but echocardiography series report 0.05%. During fetal development muscle fibers and trabeculae should compact into a solid myocardium and when this fails, NCCM occurs. The condition is genetic, even though acquired forms have been described. Worsening myocardial dysfunction may lead to heart failure and/or arrhythmias. CASE PRESENTATION: A 52-year-old man presented with heart failure. The diagnosis of NCCM was confirmed after echocardiography and cardiac magnetic resonance tomography. Interestingly, the angiogram revealed a coronary anomaly, in which the circumflex artery rose aberrantly from the right coronary artery. Due to left ventricular ejection fraction being less than 35% despite optimal pharmacological therapy, an implantable cardioverter defibrillator (ICD) was implanted and four years later a ventricular tachycardia was terminated by antitachycardia pacing. CONCLUSION: We describe a case of NCCM with a concomitant coronary anomaly, in which systolic myocardial dysfunction developed. The ICD subsequently terminated a life-threatening ventricular arrhythmia, which supports risk stratification based on low ejection fraction and possibly coronary anomaly. PMID- 29037170 TI - Multidisciplinary consensus on screening for, diagnosis and management of fetal growth restriction in the Netherlands. AB - BACKGROUND: Screening for, diagnosis and management of intrauterine growth restriction (IUGR) is often performed in multidisciplinary collaboration. However, variation in screening methods, diagnosis and management of IUGR may lead to confusion. In the Netherlands two monodisciplinary guidelines on IUGR do not fully align. To facilitate effective collaboration between different professionals in perinatal care, we undertook a Delphi study with uniform recommendations as our primary result, focusing on issues that are not aligned or for which specifications are lacking in the current guidelines. METHODS: We conducted a Delphi study in three rounds. A purposively sampled selection of 56 panellists participated: 27 representing midwife-led care and 29 obstetrician-led care. Consensus was defined as agreement between the professional groups on the same answer and among at least 70% of the panellists within groups. RESULTS: Per round 51 or 52 (91% - 93%) panellists responded. This has led to consensus on 27 issues, leading to four consensus based recommendations on screening for IUGR in midwife-led care and eight consensus based recommendations on diagnosis and eight on management in obstetrician-led care. The multidisciplinary project group decided on four additional recommendations as no consensus was reached by the panel. No recommendations could be made about induction of labour versus expectant monitoring, nor about the choice for a primary caesarean section. CONCLUSIONS: We reached consensus on recommendations for care for IUGR within a multidisciplinary panel. These will be implemented in a study on the effectiveness and cost-effectiveness of routine third trimester ultrasound for monitoring fetal growth. Research is needed to evaluate the effects of implementation of these recommendations on perinatal outcomes. TRIAL REGISTRATION: NTR4367 . PMID- 29037172 TI - The impact of influenza on the health related quality of life in China: an EQ-5D survey. AB - BACKGROUND: Influenza causes considerable morbidity and mortality in China, but its impact on the health-related quality of life (HRQoL) has not been previously measured. METHODS: We conducted a retrospective telephone survey to assess the impact of influenza on the HRQoL among outpatients and inpatients using the EuroQoL EQ-5D-3 L instrument. Participants were individuals with laboratory confirmed influenza infection registered by the National Influenza-like-illness Surveillance Network in 2013. RESULTS: We interviewed 839 of 11,098 eligible influenza patients. After excluding those who were unable to complete the HRQoL for the registered influenza episode, 778 patients were included in the analysis. Both outpatients (n = 529) and inpatients (n = 249) most commonly reported problems with pain/discomfort (71.8% of outpatients and 71.9% of inpatients) and anxiety/depression (62.0% of outpatients and 75.1% of inpatients). For individual influenza outpatients, the mean health utility was 0.6142 (SD 0.2006), and the average quality adjusted life days (QALD) loss was 1.62 (SD 1.84) days. The HRQoL of influenza inpatients was worse (mean health utility 0.5851, SD 0.2197; mean QALD loss 3.51 days, SD 4.25) than that of outpatients (p < 0.05). The presence of underlying medical conditions lowered the HRQoL for both outpatients and inpatients (p < 0.05). CONCLUSIONS: Influenza illness had a substantial impact on HRQoL. QALD loss due to an acute influenza episode in younger children was comparable to that due to enterovirus A71-associated hand, foot and mouth disease. Our findings are key inputs into disease burden estimates and cost effectiveness evaluations of influenza-related interventions in China. PMID- 29037171 TI - PeakCaller: an automated graphical interface for the quantification of intracellular calcium obtained by high-content screening. AB - BACKGROUND: Intracellular calcium is an important ion involved in the regulation and modulation of many neuronal functions. From regulating cell cycle and proliferation to initiating signaling cascades and regulating presynaptic neurotransmitter release, the concentration and timing of calcium activity governs the function and fate of neurons. Changes in calcium transients can be used in high-throughput screening applications as a basic measure of neuronal maturity, especially in developing or immature neuronal cultures derived from stem cells. RESULTS: Using human induced pluripotent stem cell derived neurons and dissociated mouse cortical neurons combined with the calcium indicator Fluo 4, we demonstrate that PeakCaller reduces type I and type II error in automated peak calling when compared to the oft-used PeakFinder algorithm under both basal and pharmacologically induced conditions. CONCLUSION: Here we describe PeakCaller, a novel MATLAB script and graphical user interface for the quantification of intracellular calcium transients in neuronal cultures. PeakCaller allows the user to set peak parameters and smoothing algorithms to best fit their data set. This new analysis script will allow for automation of calcium measurements and is a powerful software tool for researchers interested in high-throughput measurements of intracellular calcium. PMID- 29037173 TI - TaxMapper: an analysis tool, reference database and workflow for metatranscriptome analysis of eukaryotic microorganisms. AB - BACKGROUND: High-throughput sequencing (HTS) technologies are increasingly applied to analyse complex microbial ecosystems by mRNA sequencing of whole communities, also known as metatranscriptome sequencing. This approach is at the moment largely limited to prokaryotic communities and communities of few eukaryotic species with sequenced genomes. For eukaryotes the analysis is hindered mainly by a low and fragmented coverage of the reference databases to infer the community composition, but also by lack of automated workflows for the task. RESULTS: From the databases of the National Center for Biotechnology Information and Marine Microbial Eukaryote Transcriptome Sequencing Project, 142 references were selected in such a way that the taxa represent the main lineages within each of the seven supergroups of eukaryotes and possess predominantly complete transcriptomes or genomes. From these references, we created an annotated microeukaryotic reference database. We developed a tool called TaxMapper for a reliably mapping of sequencing reads against this database and filtering of unreliable assignments. For filtering, a classifier was trained and tested on each of the following: sequences of taxa in the database, sequences of taxa related to those in the database, and random sequences. Additionally, TaxMapper is part of a metatranscriptomic Snakemake workflow developed to perform quality assessment, functional and taxonomic annotation and (multivariate) statistical analysis including environmental data. The workflow is provided and described in detail to empower researchers to apply it for metatranscriptome analysis of any environmental sample. CONCLUSIONS: TaxMapper shows superior performance compared to standard approaches, resulting in a higher number of true positive taxonomic assignments. Both the TaxMapper tool and the workflow are available as open-source code at Bitbucket under the MIT license: https://bitbucket.org/dbeisser/taxmapper and as a Bioconda package: https://bioconda.github.io/recipes/taxmapper/README.html . PMID- 29037174 TI - Vitamin D supplementation as a potential cause of U-shaped associations between vitamin D levels and negative health outcomes: a decision tree analysis for risk of frailty. AB - BACKGROUND: A recent controversy in vitamin D research is a "U-shaped association", with elevated disease risks at both high and low 25-hydroxyvitamin D (25 (OH) D) levels. METHODS: This is a cross-sectional study of 238 male nursing home veterans in Hawaii. Classification and regression tree (CART) analysis identified groups based on 25 (OH) D and vitamin D supplementation for frailty risk. Characteristics were examined and compared across the groups using logistic regression and receiver operating characteristic (ROC) curve analyses. RESULTS: CART analysis identified three distinct groups: vitamin D supplement users (n = 86), non-users with low vitamin D (n = 55), and non-users with high vitamin D (n = 97). Supplement users were the most frail, but had high mean 25 (OH) D of 26.6 ng/mL, which was compatible with 27.1 ng/mL in non-users with high vitamin D, while mean 25 (OH) D of non-users with low vitamin D was 11.7 ng/mL. Supplement users and non-users with low vitamin D were significantly more likely to be frail (odds ratio (OR) = 9.90, 95% CI = 2.18-44.86, p = 0.003; OR = 4.28, 95% CI = 1.44-12.68, p = 0.009, respectively), compared with non-users with low vitamin D. ROC curve analysis showed the three groups significantly predicted frailty (area under the curve = 0.73), with sensitivity of 64.4% and specificity of 76.7%, while 25 (OH) D did not predict frailty. CONCLUSIONS: In these nursing home veterans, vitamin D supplement users were the most frail but with high 25 (OH) D. This can potentially be a cause of U-shaped associations between vitamin D levels and negative health outcomes. PMID- 29037175 TI - A ten-year study of midwife-led care at an Austrian tertiary care center: a retrospective analysis with special consideration of perineal trauma. AB - BACKGROUND: In contrast to other countries, Austria rarely offers alternative models to medical led-care. In an attempt to improve the facilities, a midwife led care service was incorporated within the Department of Obstetrics and Fetomaternal Medicine. The aim of the present study was to analyze the maternal and neonatal outcomes of this approach. METHODS: Over a 10-years period, a total of 2123 low-risk women receiving midwife-led care were studied. Among these women, 148 required obstetric referral. Age- and parity matched low-risk women with spontaneous vaginal birth overseen by an obstetrician-led team were used as controls to ensure comparability of data. RESULTS: Midwife-led care management demonstrated a significant decrease in interventions, including oxytocin use (p < 0.001), medical pain relief (p < 0.001), and artificial rupture of membranes (ARM) (p < 0.01) as well as fewer episiotomies (p < 0.001), as compared with obstetrician-led care. Moreover, no negative effects on maternal or neonatal outcomes were observed. The mean length of the second stage of labor, rate of perineal laceration and APGAR scores did not differ significantly between the study groups (p > 0.05). Maternal age (p < 0.01), head diameter (p < 0.001), birth weight (p < 0.001) and the absence of midwife-led care (p < 0.05) were independent risk factors for perineal trauma. The overall referral rate was low (7%) and was most commonly caused by pathologic cardiotocography (CTG) and prolonged first- and second-stage of labor. Most referred mothers nevertheless had spontaneous deliveries (77%), and there were low rates of vaginal operative deliveries and cesarean sections (vacuum extraction, 16%; cesarean section, 7%). CONCLUSIONS: The present study confirmed that midwife-led care confers important benefits and causes no adverse outcomes for mother and child. The favorable obstetrical outcome clearly highlights the importance of the selection of obstetric care, on the basis of previous risk assessment. We therefore fully support the recommendation that midwife-led care be offered to all low-risk women and that mothers should be encouraged to use this option. However, to increase the numbers of midwife-led care deliveries in Austria in the future, it will be necessary to expand this care model and to establish new midwife-led care units within hospital facilities. PMID- 29037176 TI - The association between high birth weight and the risks of childhood CNS tumors and leukemia: an analysis of a US case-control study in an epidemiological database. AB - BACKGROUND: High birth weight (BW), 4000 g or larger, is an established risk factor for childhood leukemia. However, its association with central nervous system (CNS) tumor risk is yet unclear. The present study examined it, analyzing data obtained from a case-control study conducted among three states from the US. The association with childhood leukemia risk was also further examined. METHODS: In this study, a data set provided by the Comprehensive Epidemiologic Data Resource was analyzed with an official permission. The original case-control study was conducted to examine the association between paternal preconception exposure to ionizing radiation and childhood cancer risk. Cases with childhood cancer were mainly ascertained from local hospitals, and controls were selected, matched with birth year (1-year category), county of residence, sex, ethnicity and maternal age (+/-2 years). Since the ID numbers were unavailable, conventional logistic analyses were conducted adjusting for those matching variables except for the county of residence. In addition to those variables, gestational age, age at diagnosis and study sites as covariables were included in the logistic models. RESULTS: Analyzed subjects were 72 CNS tumor cases, 124 leukemia cases and 822 controls born from 1945 to 1989. The odds ratios (ORs) of CNS tumor risk for children with low BWs (<2500 g) and high BWs (>4000 g) were 2.0 (95% confidence interval [CI]) = 0.7, 5.9) and 2.5 (95%CI = 1.2, 5.2)], respectively. When high-BW children were restricted to those who were large for gestational age (LGA), the OR for high-BW children remained similar (OR = 2.7; 95%CI = 1.1, 6.2). On the other hand, the ORs of leukemia risk for children with low and high BWs were 0.8 (95%CI = 0.2, 3.0) and 1.4 (95%CI = 0.7, 2.6), respectively. In the normal range of BW (2500-4000 g), higher BW was positively associated with CNS tumor risk (beta = 0.0011, p for trend = 0.012). However, the association with leukemia risk was not significant (beta = -0.0002, p for trend = 0.475). CONCLUSION: High-BW and LGA children had an elevated childhood CNS tumor risk. In the normal BW range, the BW itself was positively related to CNS tumor risk. No significant association between BW and childhood leukemia risk was observed in this study. PMID- 29037178 TI - Feasibility of a Smartphone website to support antenatal Perineal massage in pregnant women. AB - BACKGROUND: In Japan, 85% of pregnant women do not practice antenatal perineal massage. Therefore, we developed a smartphone website to support the practice of antenatal perineal massage. The purpose of the present study was to evaluate the feasibility of our smartphone website. METHODS: Pregnant women were recruited at five hospitals or clinics in Tokyo, Japan. Participants assigned to the smartphone website group (n = 74) were asked to register on the smartphone website. After completing registration, they could login and use all the contents of the website. After giving birth, participants completed a 5-item questionnaire evaluating the acceptability of the smartphone website. Participants assigned to the leaflet group (n = 71) received a leaflet on antenatal perineal massage and completed a similar 4-item questionnaire evaluating the leaflet. Data were collected from April 2014 to November 2014. Data analysis was performed using chi square and t-tests to analyze responses to close-ended questions, and content analysis was conducted to analyze responses of open-ended questions. RESULTS: In the smartphone website group, 9 women (12.2%) did not register on the smartphone website. Approximately 80% of the women who responded indicated that the smartphone site was easy to understand and useful for practicing antenatal perineal massage. In the smartphone website group, the reply rate for reporting the frequency of massage was 43.6%. Although the ratings and frequency at which the material was accessed tended to be higher in the smartphone website group than in the leaflet group, there were no significant differences. CONCLUSIONS: Most pregnant women in the smartphone website group provided a favorable evaluation for the smartphone website. However, some participants had suggestions for improvement, which need to be incorporated in a revised version of the website. Therefore, the present study's results demonstrate the feasibility of a smartphone website to support the practice of antenatal perineal massage, and they may aid in the development of similar web-based educational material for pregnant women. TRIAL REGISTRATION: This trial was registered with the UMIN Clinical Trials Registry ( UMIN000013979 ) on May 16, 2014. PMID- 29037177 TI - Development and psychometric testing of a theory-based tool to measure self-care in diabetes patients: the Self-Care of Diabetes Inventory. AB - BACKGROUND: Self-care is essential for patients with diabetes mellitus. Both clinicians and researchers must be able to assess the quality of that self-care. Available tools have various limitations and none are theoretically based. The aims of this study were to develop and to test the psychometric properties of a new instrument based on the middle range-theory of self-care of chronic illness: the Self-Care of Diabetes Inventory (SCODI). METHODS: Forty SCODI items (5 point Likert type scale) were developed based on clinical recommendations and grouped into 4 dimensions: self-care maintenance, self-care monitoring, self-care management and self-care confidence based on the theory. Content validity was assessed by a multidisciplinary panel of experts. A multi-centre cross-sectional study was conducted in a consecutive sample of 200 type 1 and type 2 diabetes patients. Dimensionality was evaluated by exploratory factor analyses. Multidimensional model based reliability was estimated for each scale. Multiple regression models estimating associations between SCODI scores and glycated haemoglobin (HbA1c), body mass index, and diabetes complications, were used for construct validity. RESULTS: Content validity ratio was 100%. A multidimensional structure emerged for the 4 scales. Multidimensional model-based reliabilities were between 0.81 (maintenance) and 0.89 (confidence). Significant associations were found between self-care maintenance and HbA1c (p = 0.02) and between self care monitoring and diabetes complications (p = 0.04). Self-care management was associated with BMI (p = 0.004) and diabetes complications (p = 0.03). Self-care confidence was a significant predictor of self-care maintenance, monitoring and management (all p < 0.0001). CONCLUSION: The SCODI is a valid and reliable theoretically-grounded tool to measure self-care in type 1 and type 2 DM patients. PMID- 29037179 TI - Piloting a mHealth intervention to improve newborn care awareness among rural Cambodian mothers: a feasibility study. AB - BACKGROUND: Globally, the World Health Organization reports that the chances of a child dying is highest in the first month of life, the neonatal period. The neonatal mortality rate in Cambodia is 18 per 1000 live births. In the province of Kampong Chhnang, that rate is the fifth highest among the 24 provinces of Cambodia at 27 per 1000 live births. We piloted a project to determine the feasibility of using a mHealth intervention (the use of mobile devices to improve health outcomes) to increase mothers' awareness about neonatal care and promote the government policy 'Safe Motherhood Protocols for Health Centres' which are in line with WHO recommendations for neonatal care. METHODS: Between September and December 2013, we piloted an Interactive Voice Response system that sent pre recorded messages to mothers of newborns using the theme 'It takes a village to raise a baby'. Four hundred fifty-five mothers were registered onto this program and the intervention involved delivering seven periodic 60 to 90 s voice messages directly to the mobile phones of these mothers from day three of their neonate's life to day 28. An evaluation of the pilot was conducted in December 2013. One hundred twenty-nine mothers were randomly selected from the 455 registered mothers and interviewed using a quantitative questionnaire. We also held two focus group discussions with three mothers and seven health workers. RESULTS: Quantitative and qualitative results of 126 respondents were included for analysis. They indicate that the intervention was well accepted. Seventy-one percent of respondents reported that they would recommend the intervention to other mothers, and 83% reported that they would be willing to pay for the service. CONCLUSIONS: This type of mHealth intervention is an acceptable and feasible way of promoting the awareness of newborn care to rural Cambodian mothers. PMID- 29037180 TI - Comparison of improved range of motion between cam-type femoroacetabular impingement and borderline developmental dysplasia of the hip -evaluation by virtual osteochondroplasty using computer simulation. AB - BACKGROUND: While cam resection is essential to achieve a good clinical result with respect to femoroacetabular impingement (FAI), it is unclear whether it should also be performed in cases of borderline developmental dysplasia of the hip (DDH) with a cam deformity. The aim of this study was to evaluate improvements in range of motion (ROM) in cases of cam-type FAI and borderline DDH after virtual osteochondroplasty using a computer impingement simulation. METHODS: Thirty-eight symptomatic hips in 31 patients (11male and 20 female) diagnosed with cam-type FAI or borderline DDH were analyzed. There were divided into a cam-type FAI group (cam-FAI group: 15 hips), borderline DDH without cam group (DDH W/O cam group: 12 hips), and borderline DDH with cam group (DDH W/ cam group: 11 hips). The bony impingement point on the femoral head-neck junction at 90 degrees flexion and maximum internal rotation of the hip joint was identified using ZedHip(r) software. Virtual osteochondroplasty of the impingement point was then performed in all cases. The maximum flexion angle and maximum internal rotation angle at 90 degrees flexion were measured before and after virtual osteochondroplasty at two resection ranges (i.e., slight and sufficient). RESULTS: The mean improvement in the internal rotation angle in the DDH W/ cam group after slight resection was significantly greater than that in the DDH W/O cam group (P = 0.046). Furthermore, the mean improvement in the internal rotation angle in the DDH W/ cam and cam-FAI groups after sufficient resection was significantly greater than that in the DDH W/O cam group (DDH W/ cam vs DDH W/O cam: P = 0.002, cam-FAI vs DDH W/O cam: P = 0.043). CONCLUSION: Virtual osteochondroplasty resulted in a significant improvement in internal rotation angle in DDH W/ cam group but not in DDH W/O cam group. Thus, borderline DDH cases with cam deformity may be better to consider performing osteochondroplasty. PMID- 29037181 TI - The MOVE-trial: Monocryl(r) vs. Vicryl RapideTM for skin repair in mediolateral episiotomies: a randomized controlled trial. AB - BACKGROUND: Previous studies have shown that complaints after episiotomy repair depend on the method and material used for repair. The objective of our study was to determine which of two frequently used suture materials, Monocryl(r) (poliglecaprone 25) and Vicryl RapideTM (polyglactin 910), is superior for intracutaneous closure of the skin in mediolateral episiotomies. METHODS: In a randomized controlled trial performed in a teaching hospital in the Netherlands between 2010 and 2013 250 primiparous women with uncomplicated mediolateral episiotomies were randomly allocated to intracutaneous skin closure with either Monocryl(r) or Vicryl RapideTM. All other layers were sutured with Vicryl 2-0 and Vicryl 0 in both groups. Pain scores and complications were documented using questionnaires during the first three months post partum. The primary outcome was pain 10 days after delivery in sitting position established by Visual Analogous Scale (VAS). Secondary outcomes were pain scores at different time points and reported complications such as infections, dehiscence and dyspareunia one day, 10 days, six weeks and three months after delivery. RESULTS: Of 250 allocated women 54% returned questionnaires. No statistical difference was found between both groups for the primary outcome (VAS 2,8 (95% CI 2,18-3,44) vs. VAS 2,5 (95% CI 2,00-2,98), p = 0,43). With regard to secondary outcomes only self-reported dehiscence was significantly different, favouring Monocryl(r) (10% vs. 25%, p = 0.016). CONCLUSIONS: Use of Monocryl(r) 3-0 and Vicryl RapideTM 3-0 for intracutaneous closure of the skin after mediolateral episiotomy leads to equal pain scores ten days after delivery and therefore both materials may be considered for this use. Monocryl(r) 3-0 might be favourable over Vicryl RapideTM 3-0 due to less self-reported dehiscence after intracutaneous closure of the skin in mediolateral episiotomies. TRIAL REGISTRATION: The trial was retrospectively registered under trial nr. ISRCTN29869308 on 20-04-2016. PMID- 29037182 TI - Ideas, actors and institutions: lessons from South Australian Health in All Policies on what encourages other sectors' involvement. AB - BACKGROUND: This paper examines the extent to which actors from sectors other than health engaged with the South Australian Health in All Policies (HiAP) initiative, determines why they were prepared to do so and explains the mechanisms by which successful engagement happened. This examination applies theories of policy development and implementation. METHODS: The paper draws on a five year study of the implementation of HiAP comprising document analysis, a log of key events, detailed interviews with 64 policy actors and two surveys of public servants. RESULTS: The findings are analysed within an institutional policy analysis framework and examine the extent to which ideas, institutional factors and actor agency influenced the willingness of actors from other sectors to work with Health sector staff under the HiAP initiative. In terms of ideas, there was wide acceptance of the role of social determinants in shaping health and the importance of action to promote health in all government agencies. The institutional environment was initially supportive, but support waned over the course of the study when the economy in South Australia became less buoyant and a health minister less supportive of health promotion took office. The existence of a HiAP Unit was very helpful for gaining support from other sectors. A new Public Health Act offered some promise of institutionalising the HiAP approach and ideas. The analysis concludes that a key factor was the operation of a supportive network of public servants who promoted HiAP, including some who were senior and influential. CONCLUSIONS: The South Australian case study demonstrates that despite institutional constraints and shifting political support within the health sector, HiAP gained traction in other sectors. The key factors that encouraged the commitment of others sectors to HiAP were the existence of a supportive, knowledgeable policy network, political support, institutionalisation of the ideas and approach, and balancing of the economic and social goals of government. PMID- 29037183 TI - Robot-assisted laparoscopic reconstructed management of multiple aneurysms in renal artery primary bifurcations: a case report and literature review. AB - BACKGROUND: Renal artery aneurysm (RAA) is rare and its incidence in the general population remains elusive. There have been few reports on the repair of multiple aneurysms conducted with the Da Vinci robot-assisted surgical platform (Intuitive Surgical Inc., Sunnyvale, CA, USA), especially for those located in renal artery primary bifurcations. CASE PRESENTATION: We report our experience in the surgical management of two expanding right-sided RAAs in a 64-year-old man using a robot assisted laparoscopic approach. Two aneurysms were located in renal artery primary bifurcations, whose diameter was 1.8 and 1.2 cm. The aneurysms were resected and the renal artery branch reconstructed by in situ arteriorrhaphy. The operation lasted for 2 h and 35 min with a warm ischemia time of 26 min and estimated blood loss of 150 ml. The hospital stay was 6 days. The computed tomography (CT) scan performed 2 months after the surgery showed resolution of the aneurysms. Additionally, split renal function indicated the preservation of right renal function in the follow-up period. CONCLUSIONS: The robot-assisted laparoscopic procedure is a safe and effective surgical technique, which may be considered as an alternative to open surgery for complex multiple RAAs in the future. PMID- 29037184 TI - Low back pain and causative movements in pregnancy: a prospective cohort study. AB - BACKGROUND: Low back pain (LBP) during pregnancy might be strongly related to posture and movements of the body, and its management is a clinically important issue. The purpose of this study was to investigate the activities related to LBP during pregnancy. METHODS: Participants included 275 women before 12 weeks of pregnancy. The women were evaluated at 12, 24, 30, and 36 weeks of pregnancy. The intensity of LBP was assessed using the Numerical Rating Scale (NRS). Movements related to LBP were investigated by free descriptive answers. Descriptive statistics were used to compile the movements that pregnant women thought induced LBP at each evaluation. Subsequently, a linear regression analysis was performed to evaluate the degree of association of certain movements with LBP using the data of participants who had LBP. The intensity of LBP (NRS score) was specified as the dependent variable, the movements that were related to pain were specified as the independent variables at the analysis. A significance threshold was set at 0.05. RESULTS: The final sample used in the analyses was 254, 249, 258, and 245 women at 12, 24, 30, and 36 weeks of pregnancy, respectively. There were 16 kinds of movements that induced LBP and all of them were daily activities rather than special movements that require extra task or effort. As pregnancy progressed, less number of participants attributed pain to a specific movement. At all evaluations, movements, especially sitting up, standing up from a chair, and tossing and turning were thought to be related to LBP. Furthermore, standing up from a chair and tossing and turning were significantly related to LBP throughout the pregnancy. In contrast, lying down and sitting up were significantly related to LBP but the relationship did not continue till late pregnancy. CONCLUSIONS: Daily routine activity is related to LBP during pregnancy. These results suggest that recommendations for pregnant women about basic physical movements, such as ways of standing up that reduce the load on the body might be useful in the management of LBP. PMID- 29037185 TI - Research involvement among undergraduate health sciences students: a cross sectional study. AB - BACKGROUND: The development of research capacity among undergraduates is an important intervention in countering the documented decrease in medical and health sciences researchers. The literature on undergraduate research generally emanates from smaller scale studies that have been conducted in high income countries, with a focus on medical students. This cross-sectional study was conducted in a Sub-Saharan country, included a population of medical and allied health professions (AHP) students, and aimed to improve our understanding of the factors influencing undergraduate student research. METHODS: A questionnaire was distributed to all students enrolled in an undergraduate programme at the Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa (including Medicine and four AHP programmes). Data was collected on a number of demographic characteristics and on 3 major outcome-themes: "voluntary research involvement", "self-perceived research competence" and "future research participation". Associations between characteristics and outcome themes were explored. RESULTS: In total, 1815 students participated in the study (response rate 80.2%). Of all the demographic variables, discipline (AHP programmes vs. Medicine), male gender and prior undergraduate experience in a science degree were significantly associated with voluntary research involvement. Significantly higher levels of self-perceived research competence and greater interest in future research participation, were seen among participants from AHP programmes; males; and those with previous or current voluntary research involvement. Ethnicity and geographic background were not significantly associated with any of our outcomes. CONCLUSIONS: Our results offer important new evidence in support of the imperative to diversify the research work-force, in Sub-Saharan Africa and globally. Enhanced efforts aimed at achieving better academic representation in terms of gender, ethnicity, geographical and socio-economic backgrounds are strengthened by the findings of this study. Potential student researchers represent an important group amenable to further intervention. Further research may be required to explore the factors that determine the progression from interest to future participation in research. PMID- 29037186 TI - Comparison of serum markers for muscle damage, surgical blood loss, postoperative recovery, and surgical site pain after extreme lateral interbody fusion with percutaneous pedicle screws or traditional open posterior lumbar interbody fusion. AB - BACKGROUND: The benefits of extreme lateral interbody fusion (XLIF) as a minimally invasive lumbar spinal fusion treatment for lumbar degenerative spondylolisthesis have been unclear. We sought to evaluate the invasiveness and tolerability of XLIF with percutaneous pedicle screws (PPS) compared with traditional open posterior lumbar interbody fusion (PLIF). METHODS: Fifty-six consecutive patients underwent open PLIF and 46 consecutive patients underwent single-staged treatment with XLIF with posterior PPS fixation for degenerative lumbar spondylolisthesis, and were followed up for a minimum of 1 year. We analyzed postoperative serum makers for muscle damage and inflammation, postoperative surgical pain, and performance status. A Roland-Morris Disability Questionnaire (RDQ) and Oswestry Disability Index (ODI) were obtained at the time of hospital admission and 1 year after surgery. RESULTS: Intraoperative blood loss (51 +/- 41 ml in the XLIF/PPS group and 206 +/- 191 ml in the PLIF group), postoperative WBC counts and serum CRP levels in the XLIF/PPS group were significantly lower than in the PLIF group. Postoperative serum CK levels were significantly lower in the XLIF/PPS group on postoperative days 4 and 7. Postoperative recovery of performance was significantly greater in the XLIF/PPS group than in the PLIF group from postoperative days 2 to 7. ODI and visual analog scale (VAS) score (lumbar) 1 year after surgery were significantly lower in the XLIF/PPS group compared with the PLIF group. CONCLUSIONS: The XLIF/PPS procedure is advantageous to minimize blood loss and muscle damage, with consequent earlier recovery of daily activities and reduced incidence of low back pain after surgery than with the open PLIF procedure. PMID- 29037187 TI - Designing equitable workplace dietary interventions: perceptions of intervention deliverers. AB - BACKGROUND: Workplaces are a good setting for interventions that aim to support workers in achieving a healthier diet and body weight. However, little is known about the factors that impact on the feasibility and implementation of these interventions, and how these might vary by type of workplace and type of worker. The aim of this study was to explore the views of those involved in commissioning and delivering the Better Health at Work Award, an established and evidence-based workplace health improvement programme. METHODS: One-to-one semi-structured interviews were conducted with 11 individuals in North East England who had some level of responsibility for delivering workplace dietary interventions. Interviews were transcribed verbatim and analysed using thematic framework analysis. RESULTS: A number of factors were felt to promote the feasibility and implementation of interventions. These included interventions that were cost neutral (to employee and employer), unstructured, involved colleagues for support, took place at lunchtimes, and were well-advertised and communicated via a variety of media. Offering incentives, not necessarily monetary, was perceived to increase recruitment rates. Factors that militate against feasibility and implementation of interventions included worksites that were large in size and remote, working patterns including shifts and working outside of normal working hours that were not conducive to workers being able to access intervention sessions, workplaces without appropriate provision for healthy food on site, and a lack of support from management. CONCLUSIONS: Intervention deliverers perceived that workplace dietary interventions should be equally and easily accessible (in terms of cost and timing of sessions) for all staff, regardless of their job role. Additional effort should be taken to ensure those staff working outside normal working hours, and those working off-site, can easily engage with any intervention, to avoid the risk of intervention-generated inequalities (IGIs). PMID- 29037189 TI - Methodological study to evaluate the psychometric properties of FACIT-CD in a sample of Brazilian women with cervical intraepithelial neoplasia. AB - BACKGROUND: The occurrence of cervical intraepithelial neoplasia (CIN) is associated with changes in health-related quality of life, including psychological factors, such as fear and shame, and changes in sexuality and sexual satisfaction, such as decreased sexual desire and frequency of sexual intercourse. Personal relationships are the most affected because CIN is sexually transmitted and many women tend to blame their partner for disease transmission. The aim of this study was to evaluate the psychometric properties of the FACIT-CD questionnaire in Brazilian women diagnosed with CIN. METHODS: The properties of the FACIT-CD questionnaire were tested on a sample of 439 women seen at the Department of Prevention of Barretos Cancer Hospital, including 329 patients who were diagnosed with CIN and 110 women who were not diagnosed with the disease. The analysed parameters included internal consistency (Cronbach's alpha), reproducibility (intraclass correlation coefficient), structural validity, convergent validity (correlation with the SF-12 and EORTC QLQ-CX24 questionnaires), discriminant validity (according to disease status, and self rating of health), sensitivity, and responsiveness. RESULTS: The Cronbach alpha values of the FACIT-CD scales were higher than 0.70 with the exception of the relationship scale (0.66). The FACIT-CD reproducibility was satisfactory, with variation in the intraclass correlation coefficients ranging between 0.50 and 0.83, although the 95% confidence interval (CI) was lower than 0.40 (0.33-0.64) on the treatment satisfaction scale. Regarding structural validity, only one item on the physical well-being scale was not kept in the original domain. The expected correlations between the FACIT-CD and SF-12 were not confirmed, whereas the correlations between the FACIT-CD and EORTC QLQ-CX24 were confirmed. The questionnaire was able to discriminate the groups according to disease status and self-rating of health. The sensitivity was low for the relationship scale and moderate for the other scales. The responsiveness of the FACIT-CD questionnaire varied between the groups that denominate the self-perception of health as no change, improvement or worsening. CONCLUSION: Our results are encouraging and indicate that the FACIT-CD questionnaire is a promising tool for the analysis of the quality of life of women with CIN. PMID- 29037190 TI - Do mobile clinics provide high-quality antenatal care? A comparison of care delivery, knowledge outcomes and perception of quality of care between fixed and mobile clinics in central Haiti. AB - BACKGROUND: Antenatal care (ANC) is an important health service for women in developing countries, with numerous proven benefits. Global coverage of ANC has steadily increased over the past 30 years, in part due to increased community based outreach. However, commensurate improvements in health outcomes such as reductions in the prevalence of maternal anemia and infants born small-for gestational age have not been achieved, even with increased coverage, indicating that quality of care may be inadequate. Mobile clinics are one community-based strategy used to further improve coverage of ANC, but their quality of care delivery has rarely been evaluated. METHODS: To determine the quality of care of ANC in central Haiti, we compared adherence to national guidelines between fixed and mobile clinics by performing direct observations of antenatal care consultations and exit interviews with recipients of care using a multi-stage random sampling procedure. Outcome variables were eight components of care, and women's knowledge and perception of care quality. RESULTS: There were significant differences in the predicted proportion or probability of recommended services for four of eight care components, including intake, laboratory examinations, infection control, and supplies, iron folic acid supplements and Tetanus Toxoid vaccine provided to women. These care components were more likely performed in fixed clinics, except for distribution of supplies, iron-folic acid supplements, and Tetanus Toxoid vaccine, more likely provided in mobile clinics. There were no differences between clinic type for the proportion of total physical exam procedures performed, health and communication messages delivered, provider communication or documentation. Women's knowledge about educational topics was poor, but women perceived extremely high quality of care in both clinic models. CONCLUSIONS: Although adherence to guidelines differed by clinic type for half of the care components, both clinics had a low percentage of overall services delivered. Efforts to improve provider performance and quality are therefore needed in both models. Mobile clinics must deliver high-quality ANC to improve health and nutrition outcomes. PMID- 29037188 TI - Epidemiology of cervical human papillomavirus (HPV) infection and squamous intraepithelial lesions (SIL) among a cohort of HIV-infected and uninfected Ghanaian women. AB - BACKGROUND: There is limited data in Ghana on the epidemiology of HPV and cervical neoplasia and their associations with HIV. This study aimed to compare among HIV-1 seropositive and HIV-seronegative Ghanaian women: (1) the prevalence, genotype distribution and risk factors associated with cervical HPV infection; and (2) the prevalence and risk factors associated with abnormal cervical cytology. METHODS: A comparative frequency-matched study was conducted in a systematic sample of women aged >=18 years attending HIV and general outpatient clinics in Cape Coast Teaching Hospital, Ghana. Participants were interviewed and cervical samples collected for HPV genotyping (Seegene Anyplex-II HPV28) and cytological testing. RESULTS: Overall, 333 women were recruited, 163 HIV-1 seropositive and 170 HIV-seronegative women of mean age 43.8 years (SD +/-9.4)) and 44.3 years (SD +/-12.8), respectively. The prevalence of 14 high-risk (hr) HPV genotypes was higher among HIV-1 seropositive women (65.6% vs. 30.2%, P < 0.0001), as was proportion with multiple hr.-HPV infections (60.6% vs. 21.3%, P < 0.0001). HPV35 was the most prevalent hr.-HPV genotype in both groups (11.9% and 5.3%). The main factors associated with hr.-HPV infection were age for HIV positive women and circumcision status of main sexual partner for both HIV negative and positive women. Abnormal cervical cytology prevalence was higher among HIV-1 seropositive women (any SIL: 14.1% vs. 1.2%, P < 0.0001; low-grade SIL [LSIL]: 4.9% vs. 0.6%, P = 0.02; high-grade SIL: 1.8% vs. 0%, P = 0.07). Among HIV-1 seropositive women, number of pregnancies and CD4+ cell count were associated with LSIL+ cytology. There was strong association between LSIL+ abnormalities and HPV35 (aOR = 4.7, 95%CI: 1.3-17.7, P = 0.02). CONCLUSIONS: HIV 1 infected women bear significant burden of HPV infection and related disease. Prevention and screening programmes should be specifically deployed for this population in Ghana. PMID- 29037191 TI - Ascorbic acid alters cell fate commitment of human neural progenitors in a WNT/beta-catenin/ROS signaling dependent manner. AB - BACKGROUND: Improving the neuronal yield from in vitro cultivated neural progenitor cells (NPCs) is an essential challenge in transplantation therapy in neurological disorders. In this regard, Ascorbic acid (AA) is widely used to expand neurogenesis from NPCs in cultures although the mechanisms of its action remain unclear. Neurogenesis from NPCs is regulated by the redox-sensitive WNT/beta-catenin signaling pathway. We therefore aimed to investigate how AA interacts with this pathway and potentiates neurogenesis. METHODS: Effects of 200 MUM AA were compared with the pro-neurogenic reagent and WNT/beta-catenin signaling agonist lithium chloride (LiCl), and molecules with antioxidant activities i.e. N-acetyl-L-cysteine (NAC) and ruthenium red (RuR), in differentiating neural progenitor ReNcell VM cells. Cells were supplemented with reagents for two periods of treatment: a full period encompassing the whole differentiation process versus an early short period that is restricted to the cell fate commitment stage. Intracellular redox balance and reactive oxygen species (ROS) metabolism were examined by flow cytometry using redox and ROS sensors. Confocal microscopy was performed to assess cell viability, neuronal yield, and levels of two proteins: Nucleoredoxin (NXN) and the WNT/beta-catenin signaling component Dishevelled 2 (DVL2). TUBB3 and MYC gene responses were evaluated by quantitative real-time PCR. DVL2-NXN complex dissociation was measured by fluorescence resonance energy transfer (FRET). RESULTS: In contrast to NAC which predictably exhibited an antioxidant effect, AA treatment enhanced ROS metabolism with no cytotoxic induction. Both drugs altered ROS levels only at the early stage of the differentiation as no changes were held beyond the neuronal fate commitment stage. FRET studies showed that AA treatment accelerated the redox-dependent release of the initial pool of DVL2 from its sequestration by NXN, while RuR treatment hampered the dissociation of the two proteins. Accordingly, AA increased WNT/beta-catenin signaling output i.e. MYC mRNA level, whereas RuR attenuated it. Moreover, AA improved neurogenesis as much as LiCl as both TUBB3-positive cell yield and TUBB3 mRNA level increased, while NAC or RuR attenuated neurogenesis. Markedly, the neurogenesis outputs between the short and the full treatment with either NAC or AA were found unchanged, supporting our model that neuronal yield is altered by events taking place at the early phase of differentiation. CONCLUSIONS: Our findings demonstrate that AA treatment elevates ROS metabolism in a non-lethal manner prior to the NPCs commitment to their neuronal fate. Such effect stimulates the redox-sensitive DVL2 activation and WNT/beta-catenin signaling response that would enhance the ensuing neuronal cell differentiation. PMID- 29037192 TI - Retroperitoneal ectopic pregnancy: a case report and review of the literature. AB - BACKGROUND: Retroperitoneal ectopic pregnancy (REP) is an extremely rare type of ectopic pregnancy, with a total of less than 20 cases reported in the English literature. However, failure to recognize REP may result in severe consequences. CASE PRESENTATION: We report a case of 32-year-old woman with REP. She had amenorrhea, left lower abdominal pain, but no vaginal bleeding. Her urine human chorionic gonadotropin (HCG) test was positive and blood HCG level was 1880 m international units per milliliter (mIU/mL). Transvaginal ultrasound sonography showed a left adnexal mass. Laparoscopy found an enlarged uterus, normal right uterine tube and ovary, and normal left uterine tube. The left ovary was partly covered by a blood clot, but appeared normal after removing the clot. There was a 10-mm circular peritoneal defect located lateral to the left sacrocervical ligament, anterior to the left ovarian fossa, and next to the lower edge of the left broad ligament. The patient was diagnosed of having REP with the gestational tissues covered by the peritoneum. The REP was removed by laparoscopic surgery. Bleeding was stopped by bipolar coagulation and absorbable hemostatic cellulose. The patient recovered smoothly and was discharged on the next day after surgery. Her blood HCG returned to normal range 29 days after surgery. CONCLUSIONS: REP is very rare, but in any suspected case of ectopic pregnancy, caution must be paid to find signs of REP when the common sites of ectopic pregnancy do not have any positive findings. PMID- 29037193 TI - Molecular surveillance of pfhrp2 and pfhrp3 deletions in Plasmodium falciparum isolates from Mozambique. AB - BACKGROUND: Malaria programmes use Plasmodium falciparum histidine-rich protein-2 (PfHRP2) based rapid diagnostic tests (RDTs) for malaria diagnosis. The deletion of this target antigen could potentially lead to misdiagnosis, delayed treatment and continuation of active transmission. METHODS: Plasmodium falciparum isolates (n = 1162) collected in Southern Mozambique were assessed by RDTs, microscopy and/or 18SrRNA qPCR. pfhrp2 and pfhrp3 deletions were investigated in isolates from individuals who were negative by RDT but positive by microscopy and/or qPCR (n = 69) using gene-specific PCRs, with kelch13 PCR as the parasite DNA control. RESULTS: Lack of pfhrp2 PCR amplification was observed in one of the 69 isolates subjected to molecular analysis [1.45% (95% CI 0.3-7.8%)]. CONCLUSIONS: The low prevalence of pfhrp2 deletions suggests that RDTs will detect the vast majority of the P. falciparum infections. Nevertheless, active surveillance for changing deletion frequencies is required. PMID- 29037194 TI - A posterior versus anterior debridement in combination with bone graft and internal fixation for lumbar and thoracic tuberculosis. AB - BACKGROUND: Surgery treatment is usually required for spinal tuberculosis. The aim of this study was to compare the clinical efficacy and outcomes of anterior and posterior surgical approach in combination with debridement, bone grafting, and internal fixation. METHODS: All patients with thoracic and lumbar tuberculosis who underwent either the anterior or posterior surgery in combination with debridement, bone grafting, and internal fixation from August 2009 to August 2016 were reviewed retrospectively. RESULTS: A total of 186 patients were recruited in the analyses, 37 of whom received the anterior approach and 149 treated with the posterior approach. In the entire study population, there was no statistically significant difference between the groups in terms of kyphosis Cobb's angle, VAS pain score, neurological status, operation duration, perioperative blood loss, and hospitalization days (p > 0.05). Good clinical outcomes were achieved in both treatment groups. In lumbar vertebra affected patients, the average preoperative kyphosis Cobb's angle was 8.7 +/- 16.6 degrees and - 5.6 +/- 16.0 degrees for the anterior and posterior groups, respectively, which were corrected to - 3.3 +/- 13.2 degrees and - 10.1 +/- 13.8 degrees after surgery. For thoracic vertebra-affected patients, the corrected kyphosis Cobb's angle was 8.1 +/- 9.7 degrees and 10.3 +/- 6.5 degrees , respectively. After surgery, 32.4% of patients in the anterior group and 48.3% of patients in the posterior group claimed no pain (p = 0.24), while 83.8 and 85.9% recovered to Frankel grade E, respectively (p = 0.85). CONCLUSIONS: The posterior debridement joint bone graft and internal fixation is an alternative procedure to treat lumbar and thoracic tuberculosis compared to the traditional anterior approach with similar clinical efficacy in terms of pain control, Cobb's angle, and neurological function. The posterior approach is sufficient for lesion debridement. PMID- 29037195 TI - Comparison between xCELLigence biosensor technology and conventional cell culture system for real-time monitoring human tenocytes proliferation and drugs cytotoxicity screening. AB - BACKGROUND: Local injections of anesthetics, NSAIDs, and corticosteroids for tendinopathies are empirically used. They are believed to have some cytotoxicity toward tenocytes. The maximal efficacy dosages of local injections should be determined. A commercial 2D microfluidic xCELLigence system had been developed to detect real-time cellular proliferation and their responses to different stimuli and had been used in several biomedical applications. The purpose of this study is to determine if human tenocytes can successfully proliferate inside xCELLigence system and the result has high correlation with conventional cell culture methods in the same condition. METHODS: First passage of human tenocytes was seeded in xCELLigence and conventional 24-well plates. Ketorolac tromethamine, bupivacaine, methylprednisolone, and betamethasone with different concentrations (100, 50, and 10% diluted of clinical usage) were exposed in both systems. Gene expression of type I collagen, type III collagen, tenascin-C, decorin, and scleraxis were compared between two systems. RESULTS: Human tenocytes could proliferate both in xCELLigence and conventional cell culture systems. Cytotoxicity of each drug revealed dose-dependency when exposed to tenocytes in both systems. Significance was found between groups. All the four drugs had comparable cytotoxicity in their 100% concentration. When 50% concentration was used, betamethasone had a relatively decreased cytotoxicity among them in xCELLigence but not in conventional culture. When 10% concentration was used, betamethasone had the least cytotoxicity. Strong and positive correlation was found between cell index of xCELLigence and result of WST-1 assay (Pearson's correlation [r] = 0.914). Positive correlation of gene expression between tenocytes in xCELLigence and conventional culture was also observed. Type I collagen: [r] = 0.823; type III collagen: [r] = 0.899; tenascin-C: [r] = 0.917; decorin: [r] = 0.874; and scleraxis: [r] = 0.965. CONCLUSIONS: Human tenocytes could proliferate inside xCELLigence system. These responses varied when tenocytes were exposed to different concentrations of ketorolac tromethamine, bupivacaine, methylprednisolone, and betamethasone. The result of cell proliferation and gene expression of tenocytes in both xCELLigence and conventional culture system is strongly correlated. CLINICAL RELEVANCE: xCELLigence culture system may replace conventional cell culture, which made real time tenocyte proliferation monitoring possible. PMID- 29037196 TI - Unmet clinical needs and burden in Angelman syndrome: a review of the literature. AB - BACKGROUND: Angelman syndrome (AS) is a rare disorder with a relatively well defined phenotype. Despite this, very little is known regarding the unmet clinical needs and burden of this condition, especially with regard to some of the most prevalent clinical features-movement disorders, communication impairments, behavior, and sleep. MAIN TEXT: A targeted literature review using electronic medical databases (e.g., PubMed) was conducted to identify recent studies focused on specific areas of the AS phenotype (motor, communication, behavior, sleep) as well as epidemiology, diagnostic processes, treatment, and burden. 142 articles were reviewed and summarized. Findings suggest significant impairment across the life span in all areas of function. While some issues may resolve as individuals get older (e.g., hyperactivity), others become worse (e.g., movement disorders, aggression, anxiety). There are no treatments focused on the underlying etiology, and the symptom-based therapies currently prescribed do not have much, if any, empirical support. CONCLUSIONS: The lack of standardized treatment protocols or approved therapies, combined with the severity of the condition, results in high unmet clinical needs in the areas of motor functioning, communication, behavior, and sleep for individuals with AS and their families. PMID- 29037197 TI - Human epicardial adipose tissue-derived and circulating secreted frizzled-related protein 4 (SFRP4) levels are increased in patients with coronary artery disease. AB - BACKGROUND: Previous studies have demonstrated that secreted frizzled-related protein 4 (SFRP4) is associated with impaired glucose and triglyceride metabolism in patients with stable coronary artery disease. In the present study, we investigated human epicardial adipose tissue (EAT)-derived and circulating SFRP4 levels in patients with coronary artery disease (CAD). METHODS: Plasma samples and adipose biopsies from EAT and subcutaneous adipose tissue (SAT) were collected from patients with CAD (n = 40) and without CAD (non-CAD, n = 30) during elective cardiac surgery. The presence of CAD was identified by coronary angiography. SFRP4 mRNA and protein expression levels in adipose tissue were detected by quantitative real-time PCR and immunohistochemistry, respectively. Plasma SFRP4 concentrations were measured by an enzyme-linked immunosorbent assay (ELISA). Correlation analysis and multivariate linear regression analysis were used to determine the association of SFRP4 expression with atherosclerosis as well as clinical risk factors. RESULTS: SFRP4 mRNA and protein expression levels were significantly lower in EAT than in paired SAT in patients with and without CAD (all P < 0.05). Compared to non-CAD patients, CAD patients had higher SFRP4 expression levels in EAT (both mRNA and protein levels) and in plasma. Multivariate linear regression analysis showed that CAD was an independent predictor of SFRP4 expression levels in EAT (beta = 0.442, 95% CI 0.030-0.814; P = 0.036) and in plasma (beta = 0.300, 95% CI 0.056-0.545; P = 0.017). SAT-derived SFRP4 mRNA levels were independently associated with fasting insulin levels (beta = 0.382, 95% CI 0.008-0.756; P = 0.045). In addition, plasma SFRP4 levels were positively correlated with BMI (r = 0.259, P = 0.030), fasting insulin levels (r = 0.306, P = 0.010) and homeostasis model assessment of insulin resistance (HOMA IR) values (r = 0.331, P = 0.005). CONCLUSIONS: EAT-derived and circulating SFRP4 expression levels were increased in patients with CAD. EAT SFRP4 mRNA levels and plasma SFRP4 concentrations were independently associated with the presence of CAD. PMID- 29037198 TI - Prolonged survival of patients with EGFR-mutated non-small cell lung cancer with solitary brain metastases treated with surgical resection of brain and lung lesions followed by EGFR TKIs. AB - BACKGROUND: The standard combination of initial and subsequent treatments of epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC) patients with solitary brain metastases (BM) remain unclear. Thus, the management options and the progression-free survival (PFS) and the overall survival (OS) of EGFR-mutated NSCLC patients with solitary BM were investigated in the study. METHODS: We retrospectively reviewed the clinical data from NSCLC patients who harbored EGFR mutations and who presented solitary BM at diagnosis in our institute between 2012 and 2014. PFS and OS were evaluated using Kaplan Meier methods and compared using log-rank tests. RESULTS: In total, 36 NSCLC patients with solitary BM who harbored EGFR mutations were enrolled in this study. The PFS and OS of these patients was 12.4 and 19.3 months, respectively. Sixteen patients underwent surgical resection of brain and lung lesions followed by EGFR-TKIs treatment, and the median OS was 28.0 months, which was significantly longer than 16.4 months of 14 patients received radiotherapy combined with or followed by EGFR-tyrosine kinase inhibitors (TKIs) and 15.8 months of 6 patients received radiotherapy followed by chemotherapy. The median PFS also showed the same trend in each group (16.1, 10.4, and 9.8 months, respectively). CONCLUSIONS: The survival was extended in the patients receiving surgical resection of brain and lung lesions followed by EGFR-TKIs treatment, and surgery combined with EGFR-TKIs could be a recommended treatment for EGFR mutated NSCLC patients with solitary BM. PMID- 29037199 TI - Assessment of local pulse wave velocity distribution in mice using k-t BLAST PC CMR with semi-automatic area segmentation. AB - BACKGROUND: Local aortic pulse wave velocity (PWV) is a measure for vascular stiffness and has a predictive value for cardiovascular events. Ultra high field CMR scanners allow the quantification of local PWV in mice, however these systems are yet unable to monitor the distribution of local elasticities. METHODS: In the present study we provide a new accelerated method to quantify local aortic PWV in mice with phase-contrast cardiovascular magnetic resonance imaging (PC-CMR) at 17.6 T. Based on a k-t BLAST (Broad-use Linear Acquisition Speed-up Technique) undersampling scheme, total measurement time could be reduced by a factor of 6. The fast data acquisition enables to quantify the local PWV at several locations along the aortic blood vessel based on the evaluation of local temporal changes in blood flow and vessel cross sectional area. To speed up post processing and to eliminate operator bias, we introduce a new semi-automatic segmentation algorithm to quantify cross-sectional areas of the aortic vessel. The new methods were applied in 10 eight-month-old mice (4 C57BL/6J-mice and 6 ApoE (-/-)-mice) at 12 adjacent locations along the abdominal aorta. RESULTS: Accelerated data acquisition and semi-automatic post-processing delivered reliable measures for the local PWV, similiar to those obtained with full data sampling and manual segmentation. No statistically significant differences of the mean values could be detected for the different measurement approaches. Mean PWV values were elevated for the ApoE (-/-)-group compared to the C57BL/6J-group (3.5 +/- 0.7 m/s vs. 2.2 +/- 0.4 m/s, p < 0.01). A more heterogeneous PWV-distribution in the ApoE (-/-)-animals could be observed compared to the C57BL/6J-mice, representing the local character of lesion development in atherosclerosis. CONCLUSION: In the present work, we showed that k-t BLAST PC-MRI enables the measurement of the local PWV distribution in the mouse aorta. The semi-automatic segmentation method based on PC-CMR data allowed rapid determination of local PWV. The findings of this study demonstrate the ability of the proposed methods to non-invasively quantify the spatial variations in local PWV along the aorta of ApoE (-/-)-mice as a relevant model of atherosclerosis. PMID- 29037200 TI - Spontaneous isolated dissection of the superior mesenteric artery and aneurysm formation resulting from segmental arterial mediolysis: a case report. AB - BACKGROUND: Spontaneous isolated dissection of the superior mesenteric artery (SMA) can lead to bowel ischemia, aneurysm rupture, or even death. Studies have suggested that mechanical or hemodynamic stress on the vascular wall of the SMA may be a contributor, but its pathogenesis is unclear. CASE PRESENTATION: A 57 year-old Japanese man with a history of untreated hypertension and hyperuricemia was admitted to our hospital with the sudden onset of severe epigastric pain. Laboratory findings showed elevated white blood cell count and C-reactive protein, and contrast-enhanced computed tomography (CT) of the abdomen demonstrated arterial dissection with luminal stenosis and aneurysm formation at the distal portion of the SMA after the branching of the jejunal artery, and intravenous nicardipine was administered. The patient's epigastric pain resolved spontaneously but recurred on day 6 of his hospital stay. Contrast-enhanced abdominal CT revealed an enlarged aneurysm with wall thinning. Because of the risk of aneurysm rupture, the decision was made to perform aneurysmectomy and bowel resection on day 6. Histologic examinations revealed two separate dissecting lesions: one latent and the other resulting in aneurysm formation. Both lesions showed characteristics of segmental arterial mediolysis (SAM) with lack of arterial media, absence of internal and external elastic laminae and intimal proliferation. CONCLUSIONS: Histologic findings in the present case suggest that mechanical or hemodynamic stress on the vascular wall and SAM related vascular vulnerability may concomitantly contribute to the onset of isolated SMA dissection. PMID- 29037201 TI - Evaluation on the diagnostic and prognostic values of long non-coding RNA BLACAT1 in common types of human cancer. AB - A growing number of evidence has indicated that long non-coding RNAs (lncRNA) may have many functions in the development and progression of cancer, and cloud serve as good diagnostic and prognostic biomarkers in cancers. However, these studies often revealed the changes of lncRNAs within a specific cancer type. Here, we focused on BLACAT1 and provided a comprehensive pan-cancer analysis to evaluate the diagnostic and prognostic values of BLACAT1. The expression data of BLACAT1 were came from the quantitative real-time polymerase chain reaction (qRT-PCR) and The Cancer Genome Atlas (TCGA) database, respectively. Our results showed that the change of serum BLACAT1 expression was similar to those in matched tissues. The expression level of BLACAT1 both in serum and tissues in multiple cancer types were significantly upregulated compared to those of matched non-cancer participants. The serum BLACAT1 had a high diagnostic performance among these 12 types of cancer. The relative AUC of serum BLACAT1 in cancer patients ranged from 0.833 to 0.967 compared to that in healthy subjects. Surprisingly, Kaplan-Meier survival analysis revealed that the high expression level of BLACAT1 was significantly associated with poor overall survival only in uterine corpus endometrial carcinoma (p = 0.002, log-rank test). These findings demonstrated that BLACAT1 could act as a non-specific diagnostic biomarker for cancers and a potential biomarker for prognosis prediction of endometrial cancer. PMID- 29037202 TI - High prevalence of very-low Plasmodium falciparum and Plasmodium vivax parasitaemia carriers in the Peruvian Amazon: insights into local and occupational mobility-related transmission. AB - BACKGROUND: The incidence of malaria due both to Plasmodium falciparum and Plasmodium vivax in the Peruvian Amazon has risen in the past 5 years. This study tested the hypothesis that the maintenance and emergence of malaria in hypoendemic regions such as Amazonia is determined by submicroscopic and asymptomatic Plasmodium parasitaemia carriers. The present study aimed to precisely quantify the rate of very-low parasitaemia carriers in two sites of the Peruvian Amazon in relation to transmission patterns of P. vivax and P. falciparum in this area. METHODS: This study was carried out within the Amazonian ICEMR longitudinal cohort. Blood samples were collected for light microscopy diagnosis and packed red blood cell (PRBC) samples were analysed by qPCR. Plasma samples were tested for total IgG reactivity against recombinant PvMSP-10 and PfMSP-10 antigens by ELISA. Occupation and age 10 years and greater were considered surrogates of occupation-related mobility. Risk factors for P. falciparum and P. vivax infections detected by PRBC-qPCR were assessed by multilevel logistic regression models. RESULTS: Among 450 subjects, the prevalence of P. vivax by PRBC-PCR (25.1%) was sixfold higher than that determined by microscopy (3.6%). The prevalence of P. falciparum infection was 4.9% by PRBC-PCR and 0.2% by microscopy. More than 40% of infections had parasitaemia under 5 parasites/MUL. Multivariate analysis for infections detected by PRBC-PCR showed that participants with recent settlement in the study area (AOR 2.1; 95% CI 1.03:4.2), age >= 30 years (AOR 3.3; 95% CI 1.6:6.9) and seropositivity to P. vivax (AOR 1.8; 95% CI 1.0:3.2) had significantly higher likelihood of P. vivax infection, while the odds of P. falciparum infection was higher for participants between 10 and 29 years (AOR 10.7; 95% CI 1.3:91.1) and with a previous P. falciparum infection (AOR 10.4; 95% CI 1.5:71.1). CONCLUSIONS: This study confirms the contrasting transmission patterns of P. vivax and P. falciparum in the Peruvian Amazon, with stable local transmission for P. vivax and the source of P. falciparum to the study villages dominated by very low parasitaemia carriers, age 10 years and older, who had travelled away from home for work and brought P. falciparum infection with them. PMID- 29037203 TI - The impact of an innovative web-based school nutrition intervention to increase fruits and vegetables and milk and alternatives in adolescents: a clustered randomized trial. AB - BACKGROUND: The increase in overweight and obesity in adolescents and its health related consequences highlight the need to develop strategies, which could help them adopt healthy eating habits. The objective of this study was to evaluate the impact of an innovative web-based school nutrition intervention (Team Nutriathlon) aimed at promoting the consumption of vegetables and fruit (V/F) and milk and alternatives (M/A) in high school students and to identify facilitators and/or barriers influencing its success. METHODS: Ten classes of first and second year secondary students (grades 7 and 8) from the Quebec City region were randomized into two groups (control n = 89 and intervention n = 193). Participants in the intervention (Team Nutriathlon) were to increase their consumption of V/F and M/A using an innovative web-based platform, developed for this study, over 6 weeks. The control group followed the regular school curriculum. The number of servings of V/F and M/A consumed by students per day was compared between the two groups before, during, immediately after and 10 weeks after the intervention using a web-based platform. Main outcome measures included V/F and M/A servings and facilitators and/or barriers of program success. Repeated measures linear fixed effects models were used to assess the impact of Team Nutriathlon on V/F and M/A consumption. A P-value of <0.05 was considered significant. RESULTS: Students in the intervention reported a significant increase of 3 servings and 1.8 servings per day of V/F and M/A, respectively, compared to the control group (P < 0.05); however, this was only observed in the short-term. Some factors contributing to the success of Team Nutriathlon included the team aspect of the program, use of the technology and recording results outside of classroom hours. CONCLUSION: Team Nutriathlon represents an innovative web-based nutrition program which positively impacts V/F and M/A consumption among high school students. Using web-based or technological platforms may help youth adopt healthy eating habits that will have implications later in adulthood; however, further studies are needed to determine their long term effects. TRIAL REGISTRATION: NCT03117374 (retrospectively registered). PMID- 29037204 TI - Thoracodorsal artery perforator flap as an autologous alternative to acellular dermal matrix. AB - BACKGROUND: Thoracodorsal artery perforator (TDAP) flap is one of the relatively new techniques in breast reconstruction. This pedicled flap retains the benefits of perforator flaps as regards minimal donor site morbidity without the need for microvascular anastomosis. Its role in partial breast reconstruction has been well documented. However, there are few reports about the role of this flap in total breast reconstruction. METHODS: This study included 47 cases who presented to the breast unit of the National Cancer Institute of Cairo University from 2013 to 2015. All patients underwent nipple-sparing mastectomy with immediate implant based reconstruction. The TDAP flap was used to complete the subpectoral pocket for the implants in a way similar to the acellular dermal matrix. RESULTS: Overall complication rate was 14.9%. Capsular contracture occurred in 6.4%.There were no donor site complications. The majority of patients were satisfied with their cosmetic results. Sixty-eight percent rated their result as "excellent" or "good." CONCLUSION: Thoracodorsal artery perforator flap can play a significant role in total breast reconstruction. In settings with limited resources, this flap can serve as an available autologous alternative to acellular dermal matrix. PMID- 29037205 TI - Vildagliptin ameliorates pulmonary fibrosis in lipopolysaccharide-induced lung injury by inhibiting endothelial-to-mesenchymal transition. AB - BACKGROUND: Pulmonary fibrosis is a late manifestation of acute respiratory distress syndrome (ARDS). Sepsis is a major cause of ARDS, and its pathogenesis includes endotoxin-induced vascular injury. Recently, endothelial-to-mesenchymal transition (EndMT) was shown to play an important role in pulmonary fibrosis. On the other hand, dipeptidyl peptidase (DPP)-4 was reported to improve vascular dysfunction in an experimental sepsis model, although whether DPP-4 affects EndMT and fibrosis initiation during lipopolysaccharide (LPS)-induced lung injury is unclear. The aim of this study was to investigate the anti-EndMT effects of the DPP-4 inhibitor vildagliptin in pulmonary fibrosis after systemic endotoxemic injury. METHODS: A septic lung injury model was established by intraperitoneal injection of lipopolysaccharide (LPS) in eight-week-old male mice (5 mg/kg for five consecutive days). The mice were then treated with vehicle or vildagliptin (intraperitoneally, 10 mg/kg, once daily for 14 consecutive days from 1 day before the first administration of LPS.). Flow cytometry, immunohistochemical staining, and quantitative polymerase chain reaction (qPCR) analysis was used to assess cell dynamics and EndMT function in lung samples from the mice. RESULTS: Lung tissue samples from treated mice revealed obvious inflammatory reactions and typical interstitial fibrosis 2 days and 28 days after LPS challenge. Quantitative flow cytometric analysis showed that the number of pulmonary vascular endothelial cells (PVECs) expressing alpha-smooth muscle actin (alpha SMA) or S100 calcium-binding protein A4 (S100A4) increased 28 days after LPS challenge. Similar increases in expression were also confirmed by qPCR of mRNA from isolated PVECs. EndMT cells had higher proliferative activity and migration activity than mesenchymal cells. All of these changes were alleviated by intraperitoneal injection of vildagliptin. Interestingly, vildagliptin and linagliptin significantly attenuated EndMT in the absence of immune cells or GLP 1. CONCLUSIONS: Inhibiting DPP-4 signaling by vildagliptin could ameliorate pulmonary fibrosis by downregulating EndMT in systemic LPS-induced lung injury. PMID- 29037206 TI - Effects of continuous visual feedback during sitting balance training in chronic stroke survivors. AB - BACKGROUND: Postural control deficits are common in stroke survivors and often the rehabilitation programs include balance training based on visual feedback to improve the control of body position or of the voluntary shift of body weight in space. In the present work, a group of chronic stroke survivors, while sitting on a force plate, exercised the ability to control their Center of Pressure with a training based on continuous visual feedback. The goal of this study was to test if and to what extent chronic stroke survivors were able to learn the task and transfer the learned ability to a condition without visual feedback and to directions and displacement amplitudes different from those experienced during training. METHODS: Eleven chronic stroke survivors (5 Male - 6 Female, age: 59.72 +/- 12.84 years) participated in this study. Subjects were seated on a stool positioned on top of a custom-built force platform. Their Center of Pressure positions were mapped to the coordinate of a cursor on a computer monitor. During training, the cursor position was always displayed and the subjects were to reach targets by shifting their Center of Pressure by moving their trunk. Pre and post training subjects were required to reach without visual feedback of the cursor the training targets as well as other targets positioned in different directions and displacement amplitudes. RESULTS: During training, most stroke survivors were able to perform the required task and to improve their performance in terms of duration, smoothness, and movement extent, although not in terms of movement direction. However, when we removed the visual feedback, most of them had no improvement with respect to their pre-training performance. CONCLUSIONS: This study suggests that postural training based exclusively on continuous visual feedback can provide limited benefits for stroke survivors, if administered alone. However, the positive gains observed during training justify the integration of this technology-based protocol in a well-structured and personalized physiotherapy training, where the combination of the two approaches may lead to functional recovery. PMID- 29037207 TI - TREM2 deficiency exacerbates tau pathology through dysregulated kinase signaling in a mouse model of tauopathy. AB - BACKGROUND: Genetic variants of the Triggering Receptor Expressed on Myeloid Cells-2 (TREM2) confer increased risk of developing late-onset Alzheimer's Disease (LOAD) and other neurodegenerative disorders. Recent studies provided insight into the multifaceted roles of TREM2 in regulating extracellular beta amyloid (Abeta) pathology, myeloid cell accumulation, and inflammation observed in AD, yet little is known regarding the role of TREM2 in regulating intracellular microtubule associated protein tau (MAPT; tau) pathology in neurodegenerative diseases and in AD, in particular. RESULTS: Here we report that TREM2 deficiency leads to accelerated and exacerbated hyperphosphorylation and aggregation of tau in a humanized mouse model of tauopathy. TREM2 deficiency also results, indirectly, in dramatic widespread dysregulation of neuronal stress kinase pathways. CONCLUSIONS: Our results suggest that deficiency of microglial TREM2 leads to heightened tau pathology coupled with widespread increases in activated neuronal stress kinases. These findings offer new insight into the complex, multiple roles of TREM2 in regulating Abeta and tau pathologies. PMID- 29037208 TI - Light/dark phase-dependent spontaneous activity is maintained in dopamine deficient mice. AB - Dopamine is important for motor control and involved in the regulation of circadian rhythm. We previously found that dopamine-deficient (DD) mice became hyperactive in a novel environment 72 h after the last injection of L-3,4 dihydroxyphenylalanine (L-DOPA) when dopamine was almost completely depleted. DD mice did not initially exhibit hyperactivity in their home cages, but the animals exhibited hyperactivity several hours after the last L-DOPA injection. The regulation of motor activity in a novel environment and in home cages may be different. A previous study reported that DD mice became active again approximately 24 h after the last L-DOPA injection. One speculation was that light/dark phase-dependent spontaneous activity might be maintained despite dopamine deficiency. The present study investigated whether spontaneous home cage activity is maintained in DD mice 24-43 h and 72-91 h after the last L-DOPA injection. Spontaneous activity was almost completely suppressed during the light phase of the light/dark cycle in DD mice 24 and 72 h after the last L-DOPA injection. After the dark phase began, DD mice became active 24 and 72 h after the last L-DOPA injection. DD mice exhibited a similar amount of locomotor activity as wildtype mice 24 h after the last L-DOPA injection. Although DD mice presented a decrease in activity 72 h after the last L-DOPA injection, they maintained dark phase-stimulated locomotor activation. Despite low levels of dopamine in DD mice, they exhibited feeding behavior that was similar to wildtype mice. Although grooming and rearing behavior significantly decreased, DD mice retained their ability to perform these activities. Haloperidol treatment significantly suppressed all of these behaviors in wildtype mice but not in DD mice. These results indicate that DD mice maintain some aspects of light/dark phase-dependent spontaneous activity despite dopamine depletion, suggesting that compensatory dopamine-independent mechanisms might play a role in the DD mouse phenotype. PMID- 29037209 TI - Understanding the effects of socioeconomic status along the breast cancer continuum in Australian women: a systematic review of evidence. AB - BACKGROUND: Globally, the provision of equitable outcomes for women with breast cancer is a priority for governments. However, there is growing evidence that a socioeconomic status (SES) gradient exists in outcomes across the breast cancer continuum - namely incidence, diagnosis, treatment, survival and mortality. This systematic review describes this evidence and, because of the importance of place in defining SES, findings are limited to the Australian experience. METHODS: An on-line search of PubMed and the Web of Science identified 44 studies published since 1995 which examined the influence of SES along the continuum. The critique of studies included the study design, the types and scales of SES variable measured, and the results in terms of direction and significance of the relationships found. To aid in the interpretation of results, the findings were discussed in the context of a systems dynamic feedback diagram. RESULTS: We found 67 findings which reported 107 relationships between SES within outcomes along the continuum. Results suggest no differences in the participation in screening by SES. Higher incidence was reported in women with higher SES whereas a negative association was reported between SES and diagnosis. Associations with treatment choice were specific to the treatment choice undertaken. Some evidence was found towards greater survival for women with higher SES, however, the evidence for a SES relationship with mortality was less conclusive. CONCLUSIONS: In a universal health system such as that in Australia, evidence of an SES gradient exists, however, the strength and direction of this relationship varies along the continuum. This is a complex relationship and the heterogeneity in study design, the SES indicator selected and its representative scale further complicates our understanding of its influence. More complex multilevel studies are needed to better understand these relationships, the interactions between predictors and to reduce biases introduced by methodological issues. PMID- 29037212 TI - Chromatin remodeling factor lymphoid-specific helicase inhibits ferroptosis through lipid metabolic genes in lung cancer progression. PMID- 29037211 TI - Pioglitazone and the secondary prevention of cardiovascular disease. A meta analysis of randomized-controlled trials. AB - BACKGROUND AND AIMS: Pioglitazone targets multiple pathogenic pathways involved in the development of cardiovascular diseases (CVD). The aim of this systematic review and meta-analysis is to assess the effects of pioglitazone treatment on the secondary prevention of CVD. METHODS: Randomized-controlled trials of pioglitazone in patients with CVD were identified through PubMed, Embase, Cochrane and CINAHL, in a search up to May 2016. Studies were included if pioglitazone was compared with any control (usual care, placebo or active comparator) and if patients were previously diagnosed with CVD. The outcomes of interest included major adverse cardiovascular events (MACE), myocardial infarction (MI), stroke, all-cause mortality and heart failure (HF). All outcomes were compared by pooled risk ratios (RR) with a 95% confidence interval (CI). Pooled estimates were calculated using a random-effects model. RESULTS: Ten studies reported the effects of pioglitazone on any of the outcomes of interest. Pioglitazone reduced recurrent MACE (RR 0.74, 95% 0.60-0.92; I2 = 35), MI (RR 0.77, 95% CI 0.64-0.93; I2 = 0%), or stroke (RR 0.81, 95% CI 0.68-0.96; I2 = 0%). Pioglitazone did not reduce all-cause mortality (RR 0.94, 95% CI 0.81-1.08; I2 = 0%), whereas pioglitazone treatment was associated with an increased risk of HF (RR 1.33, 95% CI 1.14-1.54). CONCLUSIONS: Pioglitazone lowers the risk of recurrent MACE, stroke, or MI in patients with clinical manifest vascular disease. Pioglitazone does not lower the risk for all-cause mortality, and increases the risk for the development of HF. PMID- 29037210 TI - A vicious circle between insulin resistance and inflammation in nonalcoholic fatty liver disease. AB - Nonalcoholic fatty liver disease (NAFLD) comprises a spectrum of diseases, including simple steatosis, nonalcoholic steatohepatitis (NASH), liver cirrhosis and hepatocellular carcinoma. Lipotoxicity, insulin resistance (IR) and inflammation are involved in the disease process. Lipotoxicity promotes inflammation and IR, which in turn, increase adipocyte lipolysis and exacerbates lipotoxicity. Furthermore, IR and inflammation form a vicious circle, with each condition promoting the other and accelerating the development of NAFLD in the presence of lipotoxicity. As an integrator of inflammatory pathway networks, nuclear factor-kappa B (NF-kappaB) regulates expression of pro-inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-alpha), interleukin 6 (IL-6), and anti-inflammatory cytokines, such as adiponectin in NAFLD. In this review, the relationships between lipotoxicity, IR and inflammation in NAFLD are discussed, with particular emphasis on the inflammatory pathways. PMID- 29037213 TI - Personalized treatment of women with early breast cancer: a risk-group specific cost-effectiveness analysis of adjuvant chemotherapy accounting for companion prognostic tests OncotypeDX and Adjuvant!Online. AB - BACKGROUND: Due to high survival rates and the relatively small benefit of adjuvant therapy, the application of personalized medicine (PM) through risk stratification is particularly beneficial in early breast cancer (BC) to avoid unnecessary harms from treatment. The new 21-gene assay (OncotypeDX, ODX) is a promising prognostic score for risk stratification that can be applied in conjunction with Adjuvant!Online (AO) to guide personalized chemotherapy decisions for early BC patients. Our goal was to evaluate risk-group specific cost effectiveness of adjuvant chemotherapy for women with early stage BC in Austria based on AO and ODX risk stratification. METHODS: A previously validated discrete event simulation model was applied to a hypothetical cohort of 50-year old women over a lifetime horizon. We simulated twelve risk groups derived from the joint application of ODX and AO and included respective additional costs. The primary outcomes of interest were life-years gained, quality-adjusted life-years (QALYs), costs and incremental cost-effectiveness (ICER). The robustness of results and decisions derived were tested in sensitivity analyses. A cross country comparison of results was performed. RESULTS: Chemotherapy is dominated (i.e., less effective and more costly) for patients with 1) low ODX risk independent of AO classification; and 2) low AO risk and intermediate ODX risk. For patients with an intermediate or high AO risk and an intermediate or high ODX risk, the ICER is below 15,000 EUR/QALY (potentially cost effective depending on the willingness-to-pay). Applying the AO risk classification alone would miss risk groups where chemotherapy is dominated and thus should not be considered. These results are sensitive to changes in the probabilities of distant recurrence but not to changes in the costs of chemotherapy or the ODX test. CONCLUSIONS: Based on our modeling study, chemotherapy is effective and cost effective for Austrian patients with an intermediate or high AO risk and an intermediate or high ODX risk. In other words, low ODX risk suggests chemotherapy should not be considered but low AO risk may benefit from chemotherapy if ODX risk is high. Our analysis suggests that risk-group specific cost-effectiveness analysis, which includes companion prognostic tests are essential in PM. PMID- 29037214 TI - Thyroid function and metabolic syndrome in the population-based LifeLines cohort study. AB - BACKGROUND: The metabolic syndrome (MetS) is a combination of unfavourable health factors which includes abdominal obesity, dyslipidaemia, elevated blood pressure and impaired fasting glucose. Earlier studies have reported a relationship between thyroid function and some MetS components or suggested that serum free thyroxine (FT4) or free triiodothyronine (FT3) levels within the normal range were independently associated with insulin resistance. We assessed how thyroid function relates to MetS prevalence in a large population-based study. METHODS: Data of 26,719 people of western European descent, aged 18-80 years from the Dutch LifeLines Cohort study, all with normal thyroid stimulating hormone (TSH), FT4 and FT3 levels (electrochemiluminescent immunoassay, Roche Modular E170 Analyzer), were available. MetS was defined with the revised National Cholesterol Education Programs Adults Treatment Panel III (NCEP ATP III) criteria. We calculated prevalence of all MetS components according to TSH, FT4 and FT3 quartiles. RESULTS: At similar TSH levels and age (mean 45 yrs), men had significantly higher levels of FT4, FT3, blood pressure (BP), heart rate, total and LDL-cholesterol, triglycerides (TG), and creatinine, but lower HDL cholesterol compared to women (all p < 0.001). In total, 11.8% of women and 20.7% of men had MetS. In men, lower FT4 levels were associated with higher prevalence of MetS and all MetS components. In women, lower FT4 quartile was only associated with a higher prevalence of elevated TG, waist circumference, and MetS. However, when corrected for confounding factors like age, BMI, current smoking and alcohol consumption, a significant relationship was found between FT3 and three MetS components in men, and all five components in women. Moreover, the highest quartiles of FT3 and the FT3FT4 ratio predicted a 49% and 67% higher prevalence of MetS in men, and a 62 and 80% higher prevalence in women. CONCLUSIONS: When corrected for possible confounding factors, higher plasma levels of FT3 are associated with several components of the MetS. Only in men, lower FT4 is related to MetS. In the highest FT3 and FT3FT4 quartiles, there is a 50-80% increased risk of having MetS compared to the lowest quartile. Further studies are needed to assess the possible causality of this relationship. PMID- 29037216 TI - Exploring the impact of the care sport connector in the Netherlands. AB - BACKGROUND: Regular physical activity (PA) is deemed to contribute to the primary and secondary prevention of several chronic diseases, like diabetes mellitus, cancer, cardiovascular diseases, and osteoporosis. In 2012, Care Sport Connectors (CSC), to whom a broker has been ascribed, were introduced in the Netherlands to stimulate PA and guide primary care patients towards local sport facilities. The aim of this study was to explore which structural embedding is the most promising for CSCs' work. METHODS: In three rounds of interviews, 13 CSCs were followed for 2 years in their work. In these interviews, a network survey was used to identify organisations in the CSCs' network, whether they collaborated with these organisations, and the role of the organisations in the connection. Data from the network survey were analysed using the RE-AIM framework and disaggregated into how CSCs were structurally embedded (Type A: only PA sector; Type B: different sectors; Type C: partnership). A related samples Wilcoxon signed rank test was performed to study how the CSCs' network developed between 2014 and 2016. RESULTS: All CSCs established a connection between the primary care and the PA sector in which the average number of organisations with which CSCs collaborated increased significantly between 2014 (8.3) and 2016 (19.8) (p = 0.002). However, differences were identified in the way CSCs were structurally embedded and in the way they established the connection. Type A CSCs established the connection mostly around their own activities, supported PA organisations with their activities, and collaborated with primary care and welfare professionals around their own activities. Type B and Type C CSCs established the connection by organising, supporting, and implementing different kinds of activities targeting different kinds of audiences, and collaborated mostly with primary care professionals around the referral of professionals' patients. CONCLUSIONS: The results of this study suggest that adopting an integral approach (Type B and C) for the structural embedding of the CSC is more promising for reaching the desired outcomes. Whether CSCs really improve the target groups' PA level and health needs to be further studied. TRIAL REGISTRATION: Dutch Trial Register NTR4986 . Registered 14 December 2014. PMID- 29037215 TI - Melanoma brain metastases treated with stereotactic radiosurgery and concurrent pembrolizumab display marked regression; efficacy and safety of combined treatment. AB - BACKGROUND: Brain metastases are common in patients with metastatic melanoma. With increasing numbers of melanoma patients on anti-PD-1 therapy, we sought to evaluate the safety and initial response of brain metastases treated with concurrent pembrolizumab and radiation therapy. METHODS: From an institutional database, we retrospectively identified patients with melanoma brain metastases treated with radiation therapy (RT) who received concurrent pembrolizumab. Concurrent treatment was defined as RT during pembrolizumab administration period and up to 4 months after most recent pembrolizumab treatment. Response was categorized by change in maximum diameter on first scheduled follow-up MRI. Lesion and patient specific outcomes including response, lesion control, brain control and overall survival were recorded and descriptively compared to contemporary treatments with RT and concurrent ipilimumab or RT without immunotherapy. RESULTS: From January 2014 through December 2015, we identified 21 patients who received concurrent radiation therapy and pembrolizumab for brain metastases or resection cavities that had at least one scheduled follow-up MRI. Eleven underwent stereotactic radiosurgery (SRS), 7 received hypofractionated radiation and 3 had whole brain treatment (WBRT). All treatments were well tolerated with no observed Grade 4 or 5 toxicities; Grade 3 edema and confusion occurred in 1 patient treated with WBRT after prior SRS. For metastases treated with SRS, at first scheduled follow-up MRI (median 57 days post SRS), 70% (16/23) exhibited complete (CR, n = 8) or partial response (PR, n = 8). The intracranial response rates (CR/PR) for patients treated with SRS and concurrent ipilimumab and SRS without concurrent immunotherapy was 32% and 22%, respectively. CONCLUSIONS: Concurrent pembrolizumab with brain RT appears safe in patients with metastatic melanoma, and SRS in particular is effective in markedly reducing the size of brain metastases at the time of first follow-up MRI. These results compare favorably to SRS in combination with ipilimumab and SRS without concurrent immunotherapy. PMID- 29037218 TI - Clinicopathologic features and treatment efficacy of Chinese patients with BRAF mutated metastatic colorectal cancer: a retrospective observational study. AB - BACKGROUND: The prognostic role of the V600E mutation of v-raf murine sarcoma viral oncogene homolog B1 (BRAF) in metastatic colorectal cancer (mCRC) is well established, but the therapeutic regimen targeting this disease is lacking. This study aimed to analyze the clinicopathologic features of and treatment efficacy of commonly used regimens on BRAF-mutated mCRCs. METHODS: We collected and reviewed the medical records of mCRC patients treated at Peking University Cancer Hospital & Institute (Beijing, China) between July 2011 and July 2016. Kirsten rat sarcoma viral oncogene homolog (KRAS), neuroblastoma RAS viral oncogene homolog (NRAS), and BRAF mutational status was assayed using direct sequencing. The details of clinicopathologic characteristics of patients and their responses to FOLFOXIRI regimen or standard therapy were obtained by reviewing the medical records. The progression-free survival (PFS) and overall survival (OS) were assessed using Kaplan-Meier analysis and compared using the log-rank test. RESULTS: Of 1694 patients studied, 75 had BRAF exon 15 mutations. Of these 75 patients, 71 had V600E mutation, 1 had D594G mutation, 2 had K601E mutation, and 1 had a novel T599_V600insAGA alteration. No patients had KRAS or NRAS mutations. Of 63 patients with BRAF V600E-mutated mCRC and sufficient clinical data, 27 (42.9%) had right-sided colon tumors, 19 (30.2%) had left-sided colon tumors, and 17 (26.9%) had rectal tumors; 26 (41.3%) had peritoneal metastases, and 50 (79.4%) had distant lymph node metastases. The patients with BRAF K601E- and T599_V600insAGA-mutated tumors had similar clinicopathologic features to those with BRAF V600E-mutated tumors. Patients with the BRAF V600E mutation benefited more from FOLFOXIRI regimen compared with patients who underwent standard therapy (overall response rate 83.3% vs. 14.0%; median PFS 6.4 months vs. 2.8 months, P = 0.220; median OS 11.0 months vs. 6.9 months, P = 0.048). CONCLUSIONS: BRAF V600E mutations were commonly identified in right-sided tumors and showed a high incidence of peritoneal and distant lymph nodes metastases. This subtype of mCRC was characterized by short OS and unique patterns of metastasis. Compared with standard treatment regimens, the FOLFOXIRI regimen had acceptable and manageable toxicities and favorable efficacy on patients with BRAF-mutated mCRC. PMID- 29037217 TI - Subtype-specific differentiation of cardiac pacemaker cell clusters from human induced pluripotent stem cells. AB - BACKGROUND: Human induced pluripotent stem cells (hiPSC) harbor the potential to differentiate into diverse cardiac cell types. Previous experimental efforts were primarily directed at the generation of hiPSC-derived cells with ventricular cardiomyocyte characteristics. Aiming at a straightforward approach for pacemaker cell modeling and replacement, we sought to selectively differentiate cells with nodal-type properties. METHODS: hiPSC were differentiated into spontaneously beating clusters by co-culturing with visceral endoderm-like cells in a serum free medium. Subsequent culturing in a specified fetal bovine serum (FBS) enriched cell medium produced a pacemaker-type phenotype that was studied in detail using quantitative real-time polymerase chain reaction (qRT-PCR), immunocytochemistry, and patch-clamp electrophysiology. Further investigations comprised pharmacological stimulations and co-culturing with neonatal cardiomyocytes. RESULTS: hiPSC co-cultured in a serum-free medium with the visceral endoderm-like cell line END-2 produced spontaneously beating clusters after 10-12 days of culture. The pacemaker-specific genes HCN4, TBX3, and TBX18 were abundantly expressed at this early developmental stage, while levels of sarcomeric gene products remained low. We observed that working-type cardiomyogenic differentiation can be suppressed by transfer of early clusters into a FBS-enriched cell medium immediately after beating onset. After 6 weeks under these conditions, sinoatrial node (SAN) hallmark genes remained at high levels, while working-type myocardial transcripts (NKX2.5, TBX5) were low. Clusters were characterized by regular activity and robust beating rates (70-90 beats/min) and were triggered by spontaneous Ca2+ transients recapitulating calcium clock properties of genuine pacemaker cells. They were responsive to adrenergic/cholinergic stimulation and able to pace neonatal rat ventricular myocytes in co-culture experiments. Action potential (AP) measurements of cells individualized from clusters exhibited nodal-type (63.4%) and atrial-type (36.6%) AP morphologies, while ventricular AP configurations were not observed. CONCLUSION: We provide a novel culture media-based, transgene-free approach for targeted generation of hiPSC-derived pacemaker-type cells that grow in clusters and offer the potential for disease modeling, drug testing, and individualized cell-based replacement therapy of the SAN. PMID- 29037219 TI - Meta-analysis on the treatment of diabetic foot ulcers with autologous stem cells. AB - Over the last decade, many studies have indicated a therapeutic potential for treating diabetic lower extremity ulcers with autologous stem cells. The aim of the current study was to conduct a systematic review and meta-analysis of the treatment of diabetic foot ulcers (DFUs) with autologous stem cells. The search strategy included the Pubmed, EMBASE, Web of Science, and Cochrane's Library databases. The endpoint measured was the healing of DFUs.Six eligible randomized controlled trial (RCT) studies were screened from related published studies and reviewed for meta-analysis. The overall meta-analysis showed that stem cell administration was significantly favorable for healing diabetic ulcers (mean difference (MD) 0.52, 95% confidence interval (CI) 0.38-0.65; p < 0.00001). Subgroup analyses indicated that stem cells seemed to exert similar beneficial effects on patients with ulcer size >= 5 cm2 (MD 0.76, 95% CI 0.55-0.97; p < 0.00001) and < 5 cm2 (MD 0.43, 95% CI 0.31-0.54; p < 0.00001). Furthermore, stem cells had similar effects on patients aged >= 70 years (MD 0.61, 95% CI 0.14 1.08; p = 0.01) and < 70 years (MD 0.47, 95% CI 0.35-0.58; p < 0.00001). This systematic review and meta-analysis suggests a promising role for stem cells in DFU treatment. This review will pave the way to further study on the long-term effects of stem cell-based therapy and large-scale RCTs. PMID- 29037220 TI - circGFRA1 and GFRA1 act as ceRNAs in triple negative breast cancer by regulating miR-34a. AB - BACKGROUD: Accumulating evidences indicate that circular RNAs (circRNAs), a class of non-coding RNAs, play important roles in tumorigenesis. However, the function of circRNAs in triple negative breast cancer (TNBC) is largely unknown. METHODS: We performed circRNA microarrays to identify circRNAs that are aberrantly expressed in TNBC cell lines. Expression levels of a significantly upregulated circRNA, circGFRA1, was detected by quantitative real-time PCR (qRT-PCR) in TNBC cell lines and tissues. Kaplan-Meier survival analysis was used to explore the significance of circGFRA1 in clinical prognosis. Then, we examined the functions of circGFRA1 in TNBC by cell proliferation, apoptosis and mouse xenograft assay. In addition, luciferase assay was used to explore the miRNA sponge function of circGFRA1 in TNBC. RESULTS: Microarray analysis and qRT-PCR verified a circRNA termed circGFRA1 that was upregulated in TNBC. Kaplan-Meier survival analysis showed that upregulated circGFRA1 was correlated with poorer survival. Knockdown of circGFRA1 inhibited proliferation and promoted apoptosis in TNBC. Via luciferase reporter assays, circGFRA1 and GFRA1 was observed to directly bind to miR-34a. Subsequent experiments showed that circGFRA1 and GFRA1 regulated the expression of each other by sponging miR-34a. CONCLUSIONS: Taken together, we conclude that circGFRA1 may function as a competing endogenous RNA (ceRNA) to regulate GFRA1 expression through sponging miR-34a to exert regulatory functions in TNBC. circGFRA1 may be a diagnostic biomarker and potential target for TNBC therapy. PMID- 29037221 TI - High-flow oxygen via nasal cannulae in patients with acute hypoxemic respiratory failure: a systematic review and meta-analysis. AB - BACKGROUND: We performed a systematic review and meta-analysis to evaluate the efficacy and safety of high-flow oxygen via nasal cannulae (HFNC) compared to non invasive ventilation (NIV) and/or standard oxygen in patients with acute, hypoxemic respiratory failure. METHODS: We reviewed randomized controlled trials from CENTRAL, EMBASE, MEDLINE, Scopus and the International Clinical Trials Registry Platform (inception to February 2016), conference proceedings, and relevant article reference lists. Two reviewers independently screened and extracted trial-level data from trials investigating HFNC in patients with acute, hypoxemic respiratory failure. Internal validity was assessed in duplicate using the Cochrane Risk of Bias tool. The strength of evidence was assessed in duplicate using the Grading of Recommendations Assessment, Development and Evaluation framework. Our primary outcome was mortality. Secondary outcomes included dyspnea, PaO2:FiO2 ratio, PaCO2, and pH. Safety outcomes included respiratory arrest, intubation, delirium, and skin breakdown. RESULTS: From 2023 screened citations, we identified seven trials (1771 patients) meeting inclusion criteria. All trials were at high risk of bias due to lack of blinding. There was no evidence for a mortality difference in patients receiving HFNC vs. NIV and/or standard oxygen (RR 1.01, 95% CI 0.69 to 1.48, I 2 = 63%, five trials, 1629 patients). In subgroup analyses of HFNC compared to NIV or standard oxygen individually, mortality differences were not observed. Measures of patient tolerability were heterogeneous. The PaO2:FiO2 ratio at 6-12 h was significantly lower in patients receiving oxygen via HFNC compared to NIV or standard oxygen for hypoxemic respiratory failure (MD - 53.34, 95% CI - 71.95 to - 34.72, I 2 = 61%, 1143 patients). There were no differences in pH, PaCO2, or rates of intubation or cardio-respiratory arrest. Delirium and skin breakdown were infrequently reported in included trials. CONCLUSIONS: In patients with acute hypoxemic respiratory failure HFNC was not associated with a difference in mortality compared to NIV or standard oxygen. Secondary outcomes including dyspnea, tolerance, and safety were not systematically reported. Residual heterogeneity and variable reporting of secondary outcomes limit the conclusions that can be made in this review. Prospective trials designed to evaluate the efficacy and safety of HFNC in patients with acute hypoxemic respiratory failure are required. PMID- 29037223 TI - Comparison of efficacy and complications of endoscopic and percutaneous biliary drainage in malignant obstructive jaundice: a systematic review and meta analysis. AB - BACKGROUND: Malignant obstructive jaundice is a common problem in the clinic. Currently, the generally applied treatment methods are percutaneous transhepatic biliary drainage (PTBD) and endoscopic biliary drainage (EBD). Nevertheless, there has not been a uniform conclusion published on either efficacy of the two types of drainage or the incidence rate of complications. Therefore, we conducted a systematic review and meta-analysis of studies comparing endoscopic versus percutaneous biliary drainage in malignant obstructive jaundice, to determine whether there is any difference between percutaneous and endoscopic biliary drainage, with respect to efficacy and incidence rate of overall complications. METHODS: The enrolled studies contain a total of three randomized controlled trials and eleven retrospective studies, which together encompass 2246 patients with PTBD and 8100 patients with EBD. RESULTS: Our analysis indicates that there is no difference between PTBD and EBD with regard to therapeutic success rate (%), overall complication (%), intraperitoneal bile leak, 30-day mortality, sepsis, or duodenal perforation (%). Cholangitis and pancreatitis after PTBD were lower than after EBD, with odds ratios (OR) of 0.48 (95% confidence interval (CI), 0.31 to 0.74) and 0.16 (95% CI, 0.05 to 0.52), respectively. Incidences of bleeding and tube dislocation for PTBD were higher than EBD, OR of 1.81 (95% CI, 1.35 to 2.44) and 3.41 (95% CI, 1.10 to 10.60). CONCLUSIONS: This meta-analysis indicates certain advantages for both PTBD and EBD. In the clinical practice, it is advised to choose specifically either PTBD or EBD, based on location of obstruction, purpose of drainage (as a preoperative procedure or a palliative treatment) and level of experience in biliary drainage at individual treatment centers. PMID- 29037222 TI - The efficacy and stability of an information and communication technology-based centralized monitoring system of adherence to immunosuppressive medication in kidney transplant recipients: study protocol for a randomized controlled trial. AB - BACKGROUND: Immunosuppression non-adherence in kidney transplant recipients (KTRs) not only increases the risk of medical intervention due to acute rejection and graft loss but burdens the socioeconomic system in the form of increased healthcare costs. An aggressive preemptive effort by healthcare professionals, geared to ensure adherence to immunosuppressants in KTRs, is significant and imperative. METHODS/DESIGN: This study was designed as a prospective, open-label, multicenter, randomized controlled study aimed at evaluating the efficacy and stability of an information and communication technology (ICT)-based centralized monitoring system in boosting medication adherence in KTRs. One hundred fourteen KTRs registered throughout the year 2017 to 2018 are randomized into either the ICT-based centralized home monitoring system or to ambulatory follow-up. The planned follow-up duration is 6 months. The ICT-based centralized home monitoring system described consists of a smart pill box equipped with personal identification system, a home monitoring system, an electronic Case Report Form (eCRF) system, and a comprehensive clinical trial management system (CTMS). It alerts both patients and medical staff with texts and pill box alarms if there is a dosage/dosing time error or a missed dose. Medication adherence and transplant outcomes for the follow-up period are compared between the two groups, while patient satisfaction as well as the stability and cost-effectiveness of the ICT based monitoring system are to be evaluated. DISCUSSION: This on-going study is expected to determine if consistent use of the ICT-based centralized monitoring system described could maximize mediation adherence and subsequently enhance transplant outcomes in KTRs. Further, it would lay the foundation for successful implementation of this ICT-based monitoring system for effective management of medication adherence in KTRs. TRIALS REGISTRATION: ClinicalTrials.gov, Identifier: NCT03136588 . Registered on 20 April 2017. PMID- 29037224 TI - Maternal and fetal blood lipid concentrations during pregnancy differ by maternal body mass index: findings from the ROLO study. AB - BACKGROUND: Pregnancy is a time of altered metabolic functioning and maternal blood lipid profiles change to accommodate the developing fetus. While these changes are physiologically necessary, blood lipids concentrations have been associated with adverse pregnancy outcomes such as gestational diabetes, pregnancy-induced hypertension and high birth weight. As blood lipids are not routinely measured during pregnancy, there is limited information on what is considered normal during pregnancy and in fetal blood. METHODS: Data from 327 mother-child pairs from the ROLO longitudinal birth cohort study were analysed. Fasting total cholesterol and triglycerides were measured in early and late pregnancy and fetal cord blood. Intervals were calculated using the 2.5th, 50th and 97.5th centile. Data was stratified based on maternal body mass index (BMI) measured during early pregnancy. Differences in blood lipids between BMI categories were explored using ANOVA and infant outcomes of macrosomia and large for-gestational-age (LGA) were explored using independent student T-tests and binary logistic regression. RESULTS: All maternal blood lipid concentrations increased significantly from early to late pregnancy. In early pregnancy, women with a BMI < 25 kg/m2 had lower concentrations of total cholesterol compared to women with a BMI of 25-29.9 kg/m2 (P = 0.02). With triglycerides, women in the obese category (BMI > 30 kg/m2) had higher concentrations than both women in the normal-weight and overweight category in early and late pregnancy (P < 0.001 and P = 0.03, respectively). In late pregnancy, triglyceride concentrations remained elevated in women in the obese category compared to women in the normal-weight category (P = 0.01). Triglyceride concentrations were also elevated in late pregnancy in mothers that then gave birth to infants with macrosomia and LGA (P = 0.01 and P = 0.03, respectively). CONCLUSION: Blood lipid concentrations increase during pregnancy and differ by maternal BMI. These intervals could help to inform the development of references for blood lipid concentrations during pregnancy. TRIAL REGISTRATION: ROLO Study - ISRCTN54392969 . Date of registration: 22/04/2009. PMID- 29037226 TI - Xingnaojing for Moderate-to-severe Acute ischemic Stroke (XMAS): study protocol for a randomized controlled trial. AB - BACKGROUND: Xingnaojing injection (XNJ) is widely used for the treatment of stroke in China. However, there is currently a lack of high-quality evidence of its efficacy for acute ischemic stroke. The main objective of this study is to determine whether the addition of XNJ to standard care improves the 3-month functional outcome in patients with acute ischemic stroke (AIS). METHODS/DESIGN: The XMAS study is a multicenter, prospective, randomized controlled, open-label trial with a blinded endpoints design. A total of 720 patients will be randomly allocated to either the intervention or the control group in a 1:1 ratio. The intervention group receives XNJ combined with standard care, and the control group receives standard care alone. XNJ will be administered intravenously every 12 h for 10 days. The primary outcome is the proportion of patients who are independent at 3 months after stroke onset defined as a modified Rankin Scale score of 0 to 2. Secondary outcomes include early neurological deterioration at 48 h, the change in National Institutes of Health Stroke Scale score, patient reported outcome, symptomatic intracranial hemorrhage at 10 days, the Barthel Index score, deaths from any cause and cardiovascular events at 3 months. DISCUSSION: The results of this trial will provide critical evidence for XNJ in the treatment of AIS as a complementary approach that can be initiated after reperfusion therapy or when the AIS is not eligible for thrombolytic treatment. TRIAL REGISTRATION: Clinical Trials.gov, ID: NCT02728180 . Registered on 28 March 2016. PMID- 29037225 TI - YAP transcriptionally regulates COX-2 expression and GCCSysm-4 (G-4), a dual YAP/COX-2 inhibitor, overcomes drug resistance in colorectal cancer. AB - BACKGROUND: Chemotherapy resistance remains a major challenge in cancer treatment. COX-2 (cyclooxygenase 2) is involved in drug resistance and poor prognosis of many neoplastic diseases or cancers. However, investigations identifying new modulators of COX-2 pathway and searching for new chemicals targeting these valid resistant biomarkers are still greatly needed. METHODS: HCT15, HCT-116, HT-29, COLO205, FHC, IMCE, SW480 cell lines were used to detect the expression of YAP and COX-2. Site-directed mutagenesis, luciferase reporter analysis and ChIP assay were used to test whether YAP activated COX-2 transcription through interaction with TEAD binding sites in the promoter of COX 2. Cell line models exhibiting overexpression or knockdown of some genes were generated using transfection agents. Coimmunoprecipitation was used to detect protein mutual interaction. mRNA and protein levels were measured by qRT-PCR and western blot respectively. RESULTS: Here, we reported that both YAP and COX-2 were overexpressed in colorectal cancer cells. YAP increased COX-2 expression at the level of transcription requiring intact TEAD binding sites in the COX-2 promoter. YAP conferred drug resistance through COX-2 and its related effectors such as MCL, MDR, Survivin. GCCSysm-4 (G-4), a YAP and COX-2 inhibitor, effectively inhibited both YAP and COX-2 activation, induced apoptosis and decreased viability in Taxol-resistant cells. Inhibition of YAP and COX-2 acted synergistically and more efficiently reduced the resistance of CRC cells than either of them alone. CONCLUSIONS: Our data provide new mechanisms that YAP is a new upstream regulator of COX-2 pathway and plays an important role in conferring resistance in CRC cells. G-4, targeting YAP-COX-2, may be a novel valuable strategy to combat resistance in CRC. PMID- 29037227 TI - Molecular detection of Bartonella spp. in deer ked (Lipoptena cervi) in Poland. AB - BACKGROUND: The bacteria of the genus Bartonella are obligate parasites of vertebrates. Their distribution range covers almost the entire world from America, Europe, Asia to Africa and Australia. Some species of Bartonella are pathogenic for humans. Their main vectors are blood-sucking arthropods such as fleas, ticks and blood-feeding flies. One such dipteran able to transfer vector borne pathogens is the deer ked (Lipoptena cervi) of the family Hippoboscidae. This species acts as a transmitter of Bartonella spp. in cervid hosts in Europe. METHODS: In the present study, 217 specimens of deer ked (Lipoptena cervi) were collected from 26 red deer (Cervus elaphus) hunted in January 2014. A short fragment (333 bp) of the rpoB gene was used as a marker to identify Bartonella spp. in deer ked tissue by PCR test. A longer fragment (850 bp) of the rpoB gene was amplified from 21 of the positive samples, sequenced and used for phylogenetic analysis. RESULTS: The overall prevalence of Lipoptena cervi infection with Bartonella spp. was 75.12% (163/217); 86.67% (104/120) of females and 60.82% (59/97) of males collected from red deer hunted in the Strzalowo Forest District in Poland (53 degrees 45'57.03"N, 21 degrees 25'17.79"E) were infected. The nucleotide sequences from 14 isolates (Bartonella sp. 1) showed close similarity to Bartonella schoenbuchensis isolated from moose blood from Sweden (GenBank: KB915628) and human blood from France (GenBank: HG977196); Bartonella sp. 2 (5 isolates) and Bartonella sp. 3 (one isolate) were similar to Bartonella sp. from Japanese sika deer (GenBank: AB703149), and Bartonella sp. 4 (one isolate) was almost identical to Bartonella sp. isolated from Japanese sika deer from Japan (GenBank: AB703146). CONCLUSIONS: To the best of our knowledge, this is the first report to confirm the presence of Bartonella spp. in deer keds (Lipoptena cervi) in Poland by molecular methods. Bartonella sp. 1 isolates were most closely related to B. schoenbuchensis isolated from moose from Sweden and human blood from France. The rest of our isolates (Bartonella spp. 2-4) were similar to Bartonella spp. isolated from Japanese sika deer from Japan. PMID- 29037229 TI - Situation and determinants of the infant and young child feeding (IYCF) indicators in Madagascar: analysis of the 2009 Demographic and Health Survey. AB - BACKGROUND: Studies evaluating child feeding in Madagascar are scarce despite its importance in child growth during the first two years of life. This study assessed the associations between the WHO infant and young child feeding (IYCF) indicators and stunting and identified determinants of inappropriate child feeding practices. METHODS: The most recent Demographic and Health Survey was used including a total of 1956 infants aged 0-23 months. Logistic regressions were performed for the association between IYCF indicators and stunting and for the determination of risk factors for inappropriate feeding practices. RESULTS: The rates of initiation of breastfeeding within one hour after birth (77.2%), continued breastfeeding at one year (99.6%) and timely introduction of solid, semi-solid or soft foods at 6-8 months (88.3%) were high. Exclusive breastfeeding under 6 months (48.8%), attaining minimum dietary diversity (22.2%) and consumption of iron-rich foods (19.6%) were relatively low. Higher length-for-age was associated with achieving minimum dietary diversity (p<0.01). The other indicators assessed (early initiation of breastfeeding, exclusive breastfeeding under 6 months, timely introduction of complementary foods and consumption of iron-rich foods) were not associated with stunting. Infants born to mothers who had first given birth at an age younger than 19 were more likely not to be breastfed within one hour after birth, not to be exclusively breastfed and not to have the recommended dietary diversity. Infants whose mothers had low media exposure were at increased risk of being inappropriately fed. Low household wealth also was associated with higher odds of not meeting the minimum dietary diversity. CONCLUSIONS: Despite almost total continued breastfeeding at one year and early initiation of breastfeeding by more than three-quarter of mothers, minimum dietary diversity scores were still low, confirming the need for more effective programs for improving child feeding practices in Madagascar. Improving dietary diversity in children aged 6-23 months may help reduce stunting. The identified risk factors for inappropriate feeding practices could be used in directing future nutrition sensitive interventions. PMID- 29037230 TI - The impact of multiple interventions to reduce household exposure to second-hand tobacco smoke among women: a cluster randomized controlled trial in Kalutara district, Sri Lanka. AB - BACKGROUND: Second-hand smoke (SHS) in households remains a serious public health problem in Sri Lanka, partly due to a lack of voluntary prohibitions of tobacco smoking inside houses. Women are especially at risk of being exposed. Effective community based interventions to reduce the SHS in households targeting women is scarce. The objective of this study was to examine the impact of a multi component intervention on household SHS exposure among Sri Lankan women. METHODS: Thirty clusters of 25 women (aged 18-65) from 750 households were randomized into the intervention and control groups. Women in the intervention group were exposed to activities which focused on improving knowledge on the health effects of SHS, attitudes towards SHS exposure, right to a smoke-free living and women empowerment against smoking. The duration of the intervention was six months. The comparison group received no intervention. The primary outcome of interest was self-reported SHS exposure in the household within 7 days prior to data collection. The secondary outcomes were exposure in the past 30 days, knowledge of the health risks of exposure, attitudes towards exposure, right to smoke-free living, women empowerment against smoking, and smoking inside the homes. RESULTS: Final assessment was in 329 (89.6%) in the intervention group and 309 (85.8%) in the comparison group. Following the intervention, significantly lower proportion of women in the intervention group as compared to the control group reported SHS exposure in their households within 7-days (9.2% vs. 15.3%, p = 0.02) and 30-days (13.6% vs. 21.6%, p = 0.008) prior to the post survey. As compared to the control group, significantly higher median scores were observed in the intervention group on the knowledge of the health risks of exposure to SHS (p < 0.001), attitudes on exposure to SHS (p = 0.004), right to smoke free living (p = 0.001) and women empowerment (p < 0.001). CONCLUSION: Multi-component intervention activities were effective in reducing household exposure to SHS among women. TRIAL REGISTRATION: Sri Lanka Clinical Trials Registry SLCTR/2014/033. PMID- 29037231 TI - Optimal parameters for determining the LH surge in natural cycle frozen-thawed embryo transfers. AB - BACKGROUND: There is no consensus on the exact parameters that define the LH surge for natural cycle frozen-thawed embryo transfers (NC-FET). Accurately determining the LH surge would affect the timing, and subsequently the success rates, of embryo transfer. Therefore, the aim of this study was to delineate the optimal levels and relationship for luteinizing hormone (LH) and estradiol in an effort to optimally identify the LH surge in NC-FET. METHODS: It is a retrospective study that was performed in an academic medical center. Patients who underwent blastocyst NC-FET who either had preimplantation genetic screening (PGS) or were <35 years old but did not undergo PGS (non-PGS) were included in separate analyses. They were divided into two groups: Group A included patients whose LH surge was defined as the first attainment of LH >= 17 IU/L during the follicular phase with a >=30% drop in estradiol levels the following day; group B encompassed patients whose LH level continued to rise and the surge was defined as the highest serum LH level occurring a day after LH >= 17 IU/L despite a >= 30% drop in estradiol levels. The main outcomes measures were implantation and live birth rates. RESULTS: Four hundred-seven non-PGS and 284 PGS NC-FET were included. Among non-PGS cycles, group A was associated with significantly higher implantation rates (48.7% vs. 38.1%) and live birth rates (52.9% vs. 40.1%) compared to group B. In contrast, group A and B had comparable live birth rates among PGS cycles. CONCLUSIONS: Among non-PGS cycles, measuring LH and estradiol levels the day after an LH >= 17 IU/L and defining the surge as the first day of LH >= 17 IU/L in the context of a >= 30% drop in estradiol the following day was associated with better NC-FET outcomes than defining the surge as the day representing the highest serum LH level despite a >=30% drop in estradiol levels. PMID- 29037228 TI - Neuroepigenetic mechanisms in disease. AB - Epigenetics allows for the inheritance of information in cellular lineages during differentiation, independent of changes to the underlying genetic sequence. This raises the question of whether epigenetic mechanisms also function in post mitotic neurons. During the long life of the neuron, fluctuations in gene expression allow the cell to pass through stages of differentiation, modulate synaptic activity in response to environmental cues, and fortify the cell through age-related neuroprotective pathways. Emerging evidence suggests that epigenetic mechanisms such as DNA methylation and histone modification permit these dynamic changes in gene expression throughout the life of a neuron. Accordingly, recent studies have revealed the vital importance of epigenetic players in the central nervous system and during neurodegeneration. Here, we provide a review of several of these recent findings, highlighting novel functions for epigenetics in the fields of Rett syndrome, Fragile X syndrome, and Alzheimer's disease research. Together, these discoveries underscore the vital importance of epigenetics in human neurological disorders. PMID- 29037234 TI - Women's attitudes, experiences and compliance concerning the use of Mindfetalness a method for systematic observation of fetal movements in late pregnancy. AB - BACKGROUND: Maternal perception of decreased fetal movements and low awareness of fetal movements are associated with a negative birth outcome. Mindfetalness is a method developed for women to facilitate systematic observations of the intensity, character and frequency of fetal movements in late pregnancy. We sought to explore women's attitudes, experiences and compliance in using Mindfetalness. METHODS: We enrolled 104 pregnant women treated at three maternity clinics in Stockholm, Sweden, from February to July of 2016. We educated 104 women in gestational week 28-32 by providing information about fetal movements and how to practice Mindfetalness. Each was instructed to perform the assessment daily for 15 min. At each subsequent follow-up, the midwife collected information regarding their perceptions of Mindfetalness, and their compliance. Content analyses, descriptive and analytic statistics were used in the analysis of data. RESULTS: Of the women, 93 (89%) were positive towards Mindfetalness and compliance was high 78 (75%). Subjective responses could be binned into one of five categories: Decreased worry, relaxing, creating a relationship, more knowledge about the unborn baby and awareness of the unborn baby. Eleven (11%) women had negative perceptions of Mindfetalness, citing time, and the lack of need for a method to observe fetal movements as the most common reasons. CONCLUSION: Women in late pregnancy are generally positive about Mindfetalness and their compliance with daily use is high. The technique helped them to be more aware of, and create a relationship with, their unborn baby. Mindfetalness can be a useful tool in antenatal care. However, further study is necessary in order to determine whether the technique is able to reduce the incidence of negative birth outcome. PMID- 29037233 TI - Cancer incidence in Germany attributable to human papillomavirus in 2013. AB - BACKGROUND: It is estimated that a total of 120,000 new cancer cases in men and in women in more developed countries could be avoided if exposure to HPV was prevented. We used the nationwide pool of German population-based cancer registry data to estimate the burden of HPV-attributable cancer in this population for the year 2013. METHODS: Incident cases of cervical cancer, squamous cell carcinoma of the anus, oropharynx (OP), as well as of the vulva, vagina and penis were classified as potentially HPV-associated and identified from the nationwide cancer registry data-pool. We calculated the incidence and proportions of cancer with potentially HPV-associated morphologies. Estimation of the HPV-attributable incidence was based on prevalence-estimates of viral DNA in tumor cells in the respective sites, as provided from the international literature. RESULTS: From the overall 15,936 incident cases of anogenital and OP cancers in 2013, 6239 female and 1358 male cancer cases were estimated to be attributable to HPV. The majority of HPV-attributable cases were contributed by cervical cancer (70.9% of female cancers) and oropharyngeal cancer (46.9% of male cancers). CONCLUSIONS: Even if most HPV-attributable cases were contributed by cervical cancer, anogenital cancer at sites other than the cervix, and oropharyngeal cancer substantially contribute to the burden of HPV-associated cancer. Our nationwide cancer registry data-analyses provide the baseline for long-term population-based monitoring of vaccination-effects on cancer incidence in Germany. PMID- 29037232 TI - A systematic investigation of the maximum tolerated dose of cytotoxic chemotherapy with and without supportive care in mice. AB - BACKGROUND: Cytotoxic chemotherapeutics form the cornerstone of systemic treatment of many cancers. Patients are dosed at maximum tolerated dose (MTD), which is carefully determined in phase I studies. In contrast, in murine studies, dosages are often based on customary practice or small pilot studies, which often are not well documented. Consequently, research groups need to replicate experiments, resulting in an excess use of animals and highly variable dosages across the literature. In addition, while patients often receive supportive treatments in order to allow dose escalation, mice do not. These issues could affect experimental results and hence clinical translation. METHODS: To address this, we determined the single-dose MTD in BALB/c and C57BL/6 mice for a range of chemotherapeutics covering the canonical classes, with clinical score and weight as endpoints. RESULTS: We found that there was some variation in MTDs between strains and the tolerability of repeated cycles of chemotherapy at MTD was drug dependent. We also demonstrate that dexamethasone reduces chemotherapy-induced weight loss in mice. CONCLUSION: These data form a resource for future studies using chemotherapy in mice, increasing comparability between studies, reducing the number of mice needed for dose optimisation experiments and potentially improving translation to the clinic. PMID- 29037235 TI - A push for public health: the effect of e-bikes on physical activity levels. AB - BACKGROUND: Cycling is considered to have a positive effect on public health through increased physical activity. In Norway, the e-bike is seen as a way of getting more people to cycle. However, the motorized assistance of an e-bike potentially eliminates any physical activity associated with its use. It is possible that the assumed health effect of increased cycling is "erased" through a reduction in other physical activities (a substitution effect). In this paper we study the public health effects of e-bikes using a combined cross-sectional and quasi-experimental design. First, we explore the existence of potentially hedonistic values in relation to interest in acquiring an e-bike and, second, we conduct an intervention study of physical activity pre- and post-purchase. METHODS: A sample of 340 people responded to a questionnaire before buying an e bike and follow-up 4 weeks later, when 45 had bought one. A further 28 (mainly physically inactive) were recruited through a Norwegian NGO. For a comparison group, 1995 people were recruited through the Falck National Register of Bicycle Owners. All respondents were asked about the intensity of their cycling, (kilometres cycled in the previous week), walking and physical activity in addition to cycling as means of transport (days and hours). RESULTS: A structural equation model showed that hedonistic life values, and general physical activity, were predictive of interest in buying an e-bike. However people who already cycled a lot showed less interest. The trial showed that increased cycling - whether as a mean of transport or exercise -was related to higher levels of total physical activity in both groups compared to a comparison group (one-way ANOVA). CONCLUSIONS: Our findings indicate that in the Norwegian cycle population there is no substantial substitution effect of physical activity with the introduction of an e-bike. The appeal of the e-bike is strongest among those with little existing interest in, or levels of, physical activity. The net effect of the e bike therefore seems positive from a public health perspective. PMID- 29037236 TI - A single-arm phase II study of nab-paclitaxel for patients with chemorefractory non-small cell lung cancer. AB - BACKGROUND: We aimed to evaluate the efficacy and safety of nab-paclitaxel in patients with refractory advanced non-small cell lung cancer who failed previous chemotherapy. METHODS: Patients were required to have an Eastern Cooperative Oncology Group performance status of 0-2 and adequate organ function. Patients received nab-paclitaxel, 100 mg/m2 i.v. on days 1, 8, and 15 every 4 weeks. The primary endpoint was the overall response rate. Secondary endpoints were the progression-free survival time, overall survival, and the toxicity profile. RESULTS: From July 2013 to July 2015, a total of 31 patients were enrolled. Fourteen patients received nab-paclitaxel as a second-line and 17 received it as an over third-line therapy. Each patient received a median of 5 treatment cycles (range, 1-11). The overall response rate was 19.3% (95% confidence interval, 9.1 36.2%) (complete response (n = 0), partial response (n = 6), stable disease (n = 17), and progressive disease (n = 8)). The median progression-free survival time was 4.5 months (95% confidence interval 3.5-6.3 months), median overall survival time was 15.7 months, and 1-year survival rate was 54.8%. Most common grade 3 or 4 non-hematological toxicities were elevated aspartate transaminase level (3.2%) and sensory neuropathy (9.6%). Neutropenia was the most common grade 3 or 4 adverse events (38.6%), and febrile neutropenia developed in 12.9% patients. No treatment-related deaths were observed in this study. CONCLUSION: Primary endpoint was met. Single agent nab-paclitaxel showed significant clinical efficacy and manageable toxicities for patients with chemorefractory advanced non small cell lung cancer even if late line setting. TRIAL REGISTRATION: UMIN000011696 . The date of registration was July 11th, 2013. PMID- 29037237 TI - The role of national registries in improving patient safety for hip and knee replacements. AB - BACKGROUND: The serious adverse events associated with metal on metal hip replacements have highlighted the importance of improving methods for monitoring surgical implants. The new European Union (EU) device regulation will enforce post-marketing surveillance based on registries among other surveillance tools. Europe has a common regulatory environment, a common market for medical devices, and extensive experience with joint replacement registries. In this context, we elaborate how joint replacement registries, while building on existing structure and data, can better ensure safety and balance risks and benefits. MAIN TEXT: Actions to improve registry-based implant surveillance include: enriching baseline and diversifying outcomes data collection; improving methodology to limit bias; speeding-up failure detection by active real-time monitoring; implementing risk-benefit analysis; coordinating collaboration between registries; and translating knowledge gained from the data into clinical decision making and public health policy. CONCLUSIONS: The changes proposed here will improve patient safety, enforce the application of the new legal EU requirements, augment evidence, improve clinical decision-making, facilitate value-based health care delivery, and provide up-to-date guidance for public health. PMID- 29037239 TI - Serum uric acid and non-alcoholic fatty liver disease in non-obesity Chinese adults. AB - BACKGROUND: Previous studies found elevated serum uric acid (SUA) was associated with the development or progression of non-alcoholic fatty liver disease (NAFLD) in general population; in this study we aim to investigate the association of SUA and the severity of NAFLD based on grade of fatty liver on ultrasonography in non obese subjects. METHODS: Data were obtained from subjects via routine physical examinations in the Public Health Center of our hospital between 2011 and 2014. The data included completed anthropometry and blood biochemical indicators and the results of abdominal ultrasound. The diagnosis of NAFLD was according to the clinical diagnosis of the Guidelines for the diagnosis and treatment of nonalcoholic fatty liver disease in 2008. RESULTS: In total, 95,924 subjects were analyzed in this study. The prevalence rate of lean-NAFLD was 8.16%, among which 7.58% had mild steatosis, and 0.58% had moderate and severe steatosis. The prevalence of fatty liver was increased progressively with SUA. Among which the prevalence of mild fatty liver from Q1 to Q4 were 10.33%, 18.39%, 23.11% and 25.93%; the prevalence of moderate and severe fatty liver from Q1 to Q4 were 1.06%, 2.82%, 5.05% and 7.27%. Lean-subjects with hyperuricemia had an OR of 1.718 (95% CI 1.622-1.820) to have NAFLD, after adjusted for other metabolic disorders. The area under curve (AUC) for detecting mild fatty liver based on SUA was 0.70; and the AUC for detecting moderate and severe fatty liver based on SUA was 0.78. CONCLUSIONS: Our data showed positive associations between elevated SUA levels and lean-NAFLD risk in the inland Chinese adults, independent of other metabolic factors. Our study also suggests that SUA could be considered as a simple and non-invasive method to follow up patients with lean-NAFLD. PMID- 29037238 TI - Developing dimensions for a multicomponent multidisciplinary approach to obesity management: a qualitative study. AB - BACKGROUND: There have been consistent recommendations for multicomponent and multidisciplinary approaches for obesity management. However, there is no clear agreement on the components, disciplines or processes to be considered within such an approach. In this study, we explored multicomponent and multidisciplinary approaches through an examination of knowledge, skills, beliefs, and recommendations of stakeholders involved in obesity management. These stakeholders included researchers, practitioners, educators, and patients. METHODS: We used qualitative action research methods, including convergent interviewing and observation, to assist the process of inquiry. RESULTS: The consensus was that a multicomponent and multidisciplinary approach should be based on four central meta-components (patient, practitioner, process, and environmental factors), and specific components of these factors were identified. Psychologists, dieticians, exercise physiologists and general practitioners were nominated as key practitioners to be included. CONCLUSIONS: A complex condition like obesity requires that multiple components be addressed, and that both patients and multiple disciplines are involved in developing solutions. Implementing cycles of continuous improvement to deal with complexity, instead of trying to control for it, offers an effective way to deal with complex, changing multisystem problems like obesity. PMID- 29037240 TI - KH176 under development for rare mitochondrial disease: a first in man randomized controlled clinical trial in healthy male volunteers. AB - BACKGROUND: Mitochondrial disorders are a clinically, biochemically and genetically heterogeneous group of multi-system diseases, with an unmet medical need for treatment. KH176 is an orally bio-available small molecule under development for the treatment of mitochondrial(-related) diseases. The compound is a member of a new class of drugs, acting as a potent intracellular redox modulating agent essential for the control of oxidative and redox pathologies. The aim of this randomized, placebo controlled, double-blinded phase 1 study was to test safety, tolerability and pharmacokinetics of single and multiple doses of KH176 in healthy male volunteers. Putative effects on redox related biomarkers were explored. RESULTS: KH176 was well tolerated up to and including a single dose of 800 mg and multiple doses of 400 mg b.i.d. for 7 Days. However, when the QT interval was corrected for heart rate, administration of single doses of 800 and 2000 mg and at a multiple dose of 400 mg KH176 had marked effects. Post-hoc analysis of the ECGs showed clear changes in cardiac electrophysiology at single doses of 800 and 2000 mg and multiple doses of 400 mg b.i.d.. At lower doses, detailed ECG analysis showed no changes in electrophysiology compared to placebo. Exposure-response modelling of the cardiac intervals revealed an exposure range of KH176 without effects on cardiac conduction and provided a threshold of 1000 ng/mL above which changes in intervals could occur. After single- and multiple dose administration, the pharmacokinetics of KH176 was more than dose proportional. KH176 accumulated to a small extent and food only slightly affected the pharmacokinetics of KH176, which was considered clinically irrelevant. Renal excretion of unchanged KH176 and its metabolite represents a minor pathway in the elimination of KH176. As expected in healthy volunteers no effects on redox biomarkers were observed. CONCLUSION: The study deemed that KH176 is well tolerated up to single doses of 800 mg and multiple doses of 400 mg b.i.d. and has a pharmacokinetic profile supportive for a twice daily dosing. Only at high doses, KH176 causes clinically relevant changes in cardiac electrophysiology, including prolonged QTc interval and changes in T wave morphology. A Phase 2 clinical trial (100 mg b.i.d., orally) has been conducted recently of which the final results are expected Q1 2018. TRIAL REGISTRATION: NCT02544217 . Registered. ISRCTN43372293 . Retrospectively registered. PMID- 29037241 TI - The potassium channel KCa3.1 constitutes a pharmacological target for astrogliosis associated with ischemia stroke. AB - BACKGROUND: Reactive astrogliosis is one of the significantly pathological features in ischemic stroke accompanied with changes in gene expression, morphology, and proliferation. KCa3.1 was involved in TGF-beta-induced astrogliosis in vitro and also contributed to astrogliosis-mediated neuroinflammation in neurodegeneration disease. METHODS: Wild type mice and KCa3.1-/- mice were subjected to permanent middle cerebral artery occlusion (pMCAO) to evaluate the infarct areas by 2,3,5-triphenyltetrazolium hydrochloride staining and neurological deficit. KCa3.1 channels expression and cell localization in the brain of pMCAO mice model were measured by immunoblotting and immunostaining. Glia activation and neuron loss was measured by immunostaining. DiBAC4 (3) and Fluo-4AM were used to measure membrane potential and cytosolic Ca2+ level in oxygen-glucose deprivation induced reactive astrocytes in vitro. RESULTS: Immunohistochemistry on pMCAO mice infarcts showed strong upregulation of KCa3.1 immunoreactivity in reactive astrogliosis. KCa3.1-/- mice exhibited significantly smaller infarct areas on pMCAO and improved neurological deficit. Both activated gliosis and neuronal loss were attenuated in KCa3.1-/- pMCAO mice. In the primary cultured astrocytes, the expressions of KCa3.1 and TRPV4 were increased associated with upregulation of astrogliosis marker GFAP induced by oxygen-glucose deprivation. The activation of KCa3.1 hyperpolarized membrane potential and, by promoting the driving force for calcium, induced calcium entry through TRPV4, a cation channel of the transient receptor potential family. Double-labeled staining showed that KCa3.1 and TRPV4 channels co-localized in astrocytes. Blockade of KCa3.1 or TRPV4 inhibited the phenotype switch of reactive astrogliosis. CONCLUSIONS: Our data suggested that KCa3.1 inhibition might represent a promising therapeutic strategy for ischemia stroke. PMID- 29037242 TI - Malaria risk factors and care-seeking behaviour within the private sector among high-risk populations in Vietnam: a qualitative study. AB - BACKGROUND: Vietnam has successfully reduced malaria incidence by more than 90% over the past 10 years, and is now preparing for malaria elimination. However, the remaining malaria burden resides in individuals that are hardest to reach, in highly remote areas, where many malaria cases are treated through the informal private sector and are not reported to public health systems. This qualitative study aimed to contextualize and characterize the role of private providers, care seeking behaviour of individuals at high risk of malaria, as well as risk factors that should be addressed through malaria elimination programmes in Vietnam. METHODS: Semi-structured qualitative interviews were conducted with 11 key informants in Hanoi, 30 providers, 9 potential patients, and 11 individuals at risk of malaria in Binh Phuoc and Kon Tum provinces. Audio recorded interviews were transcribed and uploaded to Atlas TITM, themes were identified, from which programmatic implications and recommendations were synthesized. RESULTS: Qualitative interviews revealed that efforts for malaria elimination in Vietnam should concentrate on reaching highest-risk populations in remote areas as well their care providers, in particular private pharmacies, private clinics, and grocery stores. Among these private providers, diagnosis is currently based on symptoms, leaving unconfirmed cases that are not reported to public health surveillance systems. Among at-risk individuals, knowledge of malaria was limited, and individuals reported not taking full courses of treatment, a practice that threatens selection for drug resistance. Access to insecticide treated hammock nets, a potentially important preventive measure for settings with outdoor biting Anopheles vectors, was also limited. CONCLUSIONS: Malaria elimination efforts in Vietnam can be accelerated by targeting improved treatment, diagnosis, and reporting practices to private pharmacies, private clinics, and grocery stores. Programmes should also seek to increase awareness and understanding of malaria among at-risk populations, in particular the importance of using preventive measures and adhering to complete courses of anti malarial medicines. PMID- 29037243 TI - Gardening in the desert: a spatial optimization approach to locating gardens in rapidly expanding urban environments. AB - BACKGROUND: Food access is a global issue, and for this reason, a wealth of studies are dedicated to understanding the location of food deserts and the benefits of urban gardens. However, few studies have linked these two strands of research together to analyze whether urban gardening activity may be a step forward in addressing issues of access for food desert residents. METHODS: The Phoenix, Arizona metropolitan area is used as a case to demonstrate the utility of spatial optimization models for siting urban gardens near food deserts and on vacant land. The locations of urban gardens are derived from a list obtained from the Maricopa County Cooperative Extension office at the University of Arizona which were geo located and aggregated to Census tracts. Census tracts were then assigned to one of three categories: tracts that contain a garden, tracts that are immediately adjacent to a tract with a garden, and all other non-garden/non adjacent census tracts. Analysis of variance is first used to ascertain whether there are statistical differences in the demographic, socio-economic, and land use profiles of these three categories of tracts. A maximal covering spatial optimization model is then used to identify potential locations for future gardening activities. A constraint of these models is that gardens be located on vacant land, which is a growing problem in rapidly urbanizing environments worldwide. RESULTS: The spatial analysis of garden locations reveals that they are centrally located in tracts with good food access. Thus, the current distribution of gardens does not provide an alternative food source to occupants of food deserts. The maximal covering spatial optimization model reveals that gardens could be sited in alternative locations to better serve food desert residents. In fact, 53 gardens may be located to cover 96.4% of all food deserts. This is an improvement over the current distribution of gardens where 68 active garden sites provide coverage to a scant 8.4% of food desert residents. CONCLUSION: People in rapidly urbanizing environments around the globe suffer from poor food access. Rapid rates of urbanization also present an unused vacant land problem in cities around the globe. This paper highlights how spatial optimization models can be used to improve healthy food access for food desert residents, which is a critical first step in ameliorating the health problems associated with lack of healthy food access including heart disease and obesity. PMID- 29037244 TI - Prediction of microbe-disease association from the integration of neighbor and graph with collaborative recommendation model. AB - BACKGROUND: Accumulating clinical researches have shown that specific microbes with abnormal levels are closely associated with the development of various human diseases. Knowledge of microbe-disease associations can provide valuable insights for complex disease mechanism understanding as well as the prevention, diagnosis and treatment of various diseases. However, little effort has been made to predict microbial candidates for human complex diseases on a large scale. METHODS: In this work, we developed a new computational model for predicting microbe-disease associations by combining two single recommendation methods. Based on the assumption that functionally similar microbes tend to get involved in the mechanism of similar disease, we adopted neighbor-based collaborative filtering and a graph-based scoring method to compute association possibility of microbe-disease pairs. The promising prediction performance could be attributed to the use of hybrid approach based on two single recommendation methods as well as the introduction of Gaussian kernel-based similarity and symptom-based disease similarity. RESULTS: To evaluate the performance of the proposed model, we implemented leave-one-out and fivefold cross validations on the HMDAD database, which is recently built as the first database collecting experimentally-confirmed microbe-disease associations. As a result, NGRHMDA achieved reliable results with AUCs of 0.9023 +/- 0.0031 and 0.9111 in the validation frameworks of fivefold CV and LOOCV. In addition, 78.2% microbe samples and 66.7% disease samples are found to be consistent with the basic assumption of our work that microbes tend to get involved in the similar disease clusters, and vice versa. CONCLUSIONS: Compared with other methods, the prediction results yielded by NGRHMDA demonstrate its effective prediction performance for microbe-disease associations. It is anticipated that NGRHMDA can be used as a useful tool to search the most potential microbial candidates for various diseases, and therefore boosts the medical knowledge and drug development. The codes and dataset of our work can be downloaded from https://github.com/yahuang1991/NGRHMDA . PMID- 29037245 TI - Reduced antiretroviral drug efficacy and concentration in HIV-infected microglia contributes to viral persistence in brain. AB - BACKGROUND: In patients with HIV/AIDS receiving antiretroviral therapy (ART), HIV 1 persistence in brain tissue is a vital and unanswered question. HIV-1 infects and replicates in resident microglia and trafficking macrophages within the brain although the impact of individual ART drugs on viral infection within these brain myeloid cells is unknown. Herein, the effects of contemporary ART drugs were investigated using in vitro and in vivo models of HIV-1 brain infection. RESULTS: The EC50 values for specific ART drugs in HIV-infected human microglia were significantly higher compared to bone marrow-derived macrophages and peripheral blood mononuclear cells. Intracellular ART drug concentrations in microglia were significantly lower than in human lymphocytes. In vivo brain concentrations of ART drugs in mice were 10 to 100-fold less in brain tissues compared with plasma and liver levels. In brain tissues from untreated HIV-infected BLT mice, HIV encoded RNA, DNA and p24 were present in human leukocytes while ART eradicated viral RNA and DNA in both brain and plasma. Interruption of ART resulted in detectable viral RNA and DNA and increased human CD68 expression in brains of HIV infected BLT mice. In aviremic HIV/AIDS patients receiving effective ART, brain tissues that were collected within hours of last ART dosing showed HIV-encoded RNA and DNA with associated neuroinflammatory responses. CONCLUSIONS: ART drugs show variable concentrations and efficacies in brain myeloid cells and tissues in drug-specific manner. Despite low drug concentrations in brain, experimental ART suppressed HIV-1 infection in brain although HIV/AIDS patients receiving effective ART had detectable HIV-1 in brain. These findings suggest that viral suppression in brain is feasible but new approaches to enhancing ART efficacy and concentrations in brain are required for sustained HIV-1 eradication from brain. PMID- 29037247 TI - The effect of a weight gain prevention intervention on moderate-vigorous physical activity among black women: the Shape Program. AB - BACKGROUND: Rates of physical inactivity are high among Black women living in the United States with overweight or obesity, especially those living in the rural South. This study was conducted to determine if an efficacious weight gain prevention intervention increased moderate-vigorous physical activity (MVPA). METHODS: The Shape Program, a weight gain prevention intervention implemented in community health centers in rural North Carolina, was designed for socioeconomically disadvantaged Black women with overweight or obesity. MVPA was measured using accelerometers, and summarized into 1- and 10-min bouts. We employed analyses of covariance (ANCOVA) to assess the relationship between changes in MVPA over 12 months, calculated as a change score, and intervention assignment (intervention versus usual care). RESULTS: Participants completing both baseline and 12-month accelerometer assessments (n = 121) had a mean age of 36.1 (SD = 5.43) years and a mean body mass index of 30.24 kg/m2 (SD = 2.60). At baseline, 38% met the physical activity recommendation (150 min of MVPA/week) when assessed using 10-min bouts, and 76% met the recommendation when assessed using 1-min bouts. There were no significant differences in change in MVPA participation among participants randomized to the intervention from baseline to 12-months using 1-min bouts (adjusted intervention mean [95% CI]: 20.50 [-109.09 to 150.10] vs. adjusted usual care mean [95% CI]: -80.04 [-209.21 to 49.13], P = .29), or 10-min bouts (adjusted intervention mean [95% CI]: 7.39 [-83.57 to 98.35] vs. adjusted usual care mean [95% CI]: -17.26 [-107.93 to 73.40], P = .70). CONCLUSIONS: Although prior research determined that the Shape intervention promoted weight gain prevention, MVPA did not increase significantly among intervention participants from baseline to 12 months. The classification of bouts had a marked effect on the prevalence estimates of those meeting physical activity recommendations. More research is needed to understand how to promote increased MVPA in weight gain prevention interventions. TRIAL REGISTRATION: This study is registered at www.clinicaltrials.gov database (No. NCT00938535. Retrospectively Registered 7/10/2009). PMID- 29037246 TI - Effectors of Th1 and Th17 cells act on astrocytes and augment their neuroinflammatory properties. AB - BACKGROUND: Autoreactive Th1 and Th17 cells are believed to mediate the pathology of multiple sclerosis in the central nervous system (CNS). Their interaction with microglia and astrocytes in the CNS is crucial for the regulation of the neuroinflammation. Previously, we have shown that only Th1 but not Th17 effectors activate microglia. However, it is not clear which cells are targets of Th17 effectors in the CNS. METHODS: To understand the effects driven by Th17 cells in the CNS, we induced experimental autoimmune encephalomyelitis in wild-type mice and CD4+ T cell-specific integrin alpha4-deficient mice where trafficking of Th1 cells into the CNS was affected. We compared microglial and astrocyte response in the brain and spinal cord of these mice. We further treated astrocytes with supernatants from highly pure Th1 and Th17 cultures and assessed the messenger RNA expression of neurotrophic factors, cytokines and chemokines, using real-time PCR. Data obtained was analyzed using the Kruskal-Wallis test. RESULTS: We observed in alpha4-deficient mice weak microglial activation but comparable astrogliosis to that of wild-type mice in the regions of the brain populated with Th17 infiltrates, suggesting that Th17 cells target astrocytes and not microglia. In vitro, in response to supernatants from Th1 and Th17 cultures, astrocytes showed altered expression of neurotrophic factors, pro-inflammatory cytokines and chemokines. Furthermore, increased expression of chemokines in Th1- and Th17 treated astrocytes enhanced recruitment of microglia and transendothelial migration of Th17 cells in vitro. CONCLUSION: Our results demonstrate the delicate interaction between T cell subsets and glial cells and how they communicate to mediate their effects. Effectors of Th1 act on both microglia and astrocytes whereas Th17 effectors preferentially target astrocytes to promote neuroinflammation. PMID- 29037248 TI - Quantifying the importance of inhaler attributes corresponding to items in the patient satisfaction and preference questionnaire in patients using Combivent Respimat. AB - BACKGROUND: Physicians consider ease of use, satisfaction, and preferences when prescribing an inhaler device. These factors may impact appropriate usage and compliance. METHODS: The objectives were to quantify the relative importance of inhaler attributes in patients currently using Combivent Respimat by eliciting preferences for performance and convenience attributes assessed by items in the Patient Satisfaction and Preference Questionnaire (PASAPQ). Using a pharmacy database, 19,964 adults in the United States who filled >=2 Combivent Respimat prescriptions were identified. Of those, 8150 patients were randomly selected to receive invitation letters. The online cross-sectional survey included the PASAPQ and best-worst scaling (BWS) questions. The PASAPQ measures satisfaction with medication attributes across two domains: performance and convenience. BWS questions asked participants to select the most and least important device attributes. A descriptive statistics analysis of the PASAPQ and a random parameters logit model of BWS responses were conducted. RESULTS: The survey was completed by 503 participants. Most were female (57.3%), white (88.5%), and 51-70 years old (67.6%). Approximately 47% reported a chronic obstructive pulmonary disease diagnosis, 21.9% asthma, 8.2% other lung disease, and 23.1% more than one lung disease. PASAPQ scores indicated that the majority were satisfied or very satisfied; up to 20% reported being dissatisfied with Combivent Respimat. The three most important inhaler attributes were Feeling that your medicine gets into your lungs, Inhaler works reliably, and Inhaler makes inhaling your medicine easy. The most important attributes corresponded to six of seven items in the PASAPQ performance domain. CONCLUSIONS: Most participants reported satisfaction with Combivent Respimat. Performance attributes were more important than convenience attributes. PMID- 29037249 TI - A novel self-micro-emulsifying delivery system (SMEDS) formulation significantly improves the fasting absorption of EPA and DHA from a single dose of an omega-3 ethyl ester concentrate. AB - BACKGROUND: Absorption of EPA and DHA from Omega-3-acid ethyl ester (EE) concentrate supplements occurs most efficiently when taken in context of a fatty meal; adequate fat intake is required to release bile salts that emulsify and pancreatic enzymes that digest omega-3-containing lipids in the intestine. Current guidelines recommend reduction in fat intake and therefore there is a need to optimize the absorption of Omega-3 in those consuming low-fat or no-fat meals. To this end, BASF has developed an Absorption Acceleration Technology, a novel self-micro-emulsifying delivery system (SMEDS) formulation of highly concentrated Omega-3-acid EE which enables rapid emulsification and microdroplet formation upon entering the aqueous environment of the gut therefore enhances the absorption. METHODS: Two separate single dose, crossover studies were conducted to determine the relative bioavailability of omega-3-acid EE concentrate, either as a novel SMEDS formulation (PRF-021) or as control, in healthy fasted male and female adults at two dose levels (Study 1 "low dose": 630 mg EPA + DHA in PRF-021 vs. 840 mg EPA + DHA in control; Study 2 "high dose": 1680 mg EPA + DHA in PRF 021 vs. 3360 mg EPA + DHA in control). Blood samples were collected immediately before supplementation and at defined time intervals for 48 h. Plasma concentration of total EPA and DHA were determined for pharmacokinetic analysis, area under the curve (AUC) and maximum observed concentration (Cmax) was determined. RESULTS: Total EPA plus DHA absorption from SMEDS formulation PRF-021 were 6.4 and 11.5 times higher compared to control in low- and high-dose studies respectively, determined as the ratio of baseline corrected, dose normalized AUC0 24h of PRF-021 over that of control. EPA and DHA individually showed differing levels of enhancement: the AUC0-24h ratio for EPA was 23.8 and 25.7 in low and high dose studies, respectively, and the AUC0-24h ratio for DHA was 3.6 and 5.6 in low and high dose studies, respectively. Cmax was also increased for both EPA and DHA 2.7- to 9.2-fold. CONCLUSION: PRF-021 is a novel SMEDS formulation of Omega-3-acid EE demonstrating a marked improvement in absorption of a single dose of EPA and DHA EE under fasted conditions. This allows adequate absorption of Omega-3 from the supplement without the requirement of a high-fat meal. PMID- 29037250 TI - The immune system in cancer metastasis: friend or foe? AB - Metastatic disease is the leading cause of death among cancer patients and involves a complex and inefficient process. Every step of the metastatic process can be rate limiting and is influenced by non-malignant host cells interacting with the tumor cell. Over a century ago, experiments first indicated a link between the immune system and metastasis. This phenomenon, called concomitant immunity, indicates that the primary tumor induces an immune response, which may not be sufficient to destroy the primary tumor, but prevents the growth of a secondary tumor or metastases. Since that time, many different immune cells have been shown to play a role in both inhibiting and promoting metastatic disease. Here we review classic and new observations, describing the links between the immune system and metastasis that inform the development of cancer therapies. PMID- 29037252 TI - Experiences of midwives on pharmacological and non-pharmacological labour pain management in Ghana. AB - BACKGROUND: Due to the debilitating effects of severe labour pains, labour pain management continues to be an important subject that requires much attention. Thus, this study sought to gain a detailed insight into the experiences of midwives on pharmacological and non-pharmacological labour pain management strategies in a resource limited clinical context. METHODS: A descriptive exploratory qualitative design was adopted for this study which allowed in-depth follow-up of the midwives' comments resulting in a full understanding of emerging findings. Face-to-face individual interviews were conducted, transcribed and data were analysed using content analysis procedures. Verbatim quotes were used to support the findings. RESULTS: Midwives employed different pain control measures including pharmacological and non-pharmacological methods such as psychological care, sacral massage and deep breathing exercises. Doctors prescribed analgesics most of the time while in some cases, the midwives independently administered the drugs. They assisted women who had epidural anaesthesia given by anaesthetists. The midwives did not administer adequate analgesics because of fear of side effects of analgesics. Although the midwives exhibited knowledge on drugs used for labour pain management, they did not regularly administer analgesics and non pharmacological care provided were inadequate due to increased workload. Some of the midwives showed empathy towards women and supported the women. Most of the midwives perceived labour pain as normal and encouraged women to bear pain. CONCLUSION: Midwives require regular education on labour pain management and they should pay attention to women in labour individually and administer the care that meets their need. PMID- 29037254 TI - Correction to: Anti-inflammatory and immune regulatory effects of acupuncture after craniotomy: study protocol for a parallel-group randomized controlled trial. PMID- 29037251 TI - Cytochrome c oxidase subunit 1 gene as a DNA barcode for discriminating Trypanosoma cruzi DTUs and closely related species. AB - BACKGROUND: The DNA barcoding system using the cytochrome c oxidase subunit 1 mitochondrial gene (cox1 or COI) is highly efficient for discriminating vertebrate and invertebrate species. In the present study, we examined the suitability of cox1 as a marker for Trypanosoma cruzi identification from other closely related species. Additionally, we combined the sequences of cox1 and the nuclear gene glucose-6-phosphate isomerase (GPI) to evaluate the occurrence of mitochondrial introgression and the presence of hybrid genotypes. METHODS: Sixty two isolates of Trypanosoma spp. obtained from five of the six Brazilian biomes (Amazon Forest, Atlantic Forest, Caatinga, Cerrado and Pantanal) were sequenced for cox1 and GPI gene fragments. Phylogenetic trees were reconstructed using neighbor-joining, maximum likelihood, parsimony and Bayesian inference methods. Molecular species delimitation was evaluated through pairwise intraspecific and interspecific distances, Automatic Barcode Gap Discovery, single-rate Poisson Tree Processes and multi-rate Poisson Tree Processes. RESULTS: Both cox1 and GPI genes recognized and differentiated T. cruzi, Trypanosoma cruzi marinkellei, Trypanosoma dionisii and Trypanosoma rangeli. Cox1 discriminated Tcbat, TcI, TcII, TcIII and TcIV. Additionally, TcV and TcVI were identified as a single group. Cox1 also demonstrated diversity in the discrete typing units (DTUs) TcI, TcII and TcIII and in T. c. marinkellei and T. rangeli. Cox1 and GPI demonstrated TcI and TcII as the most genetically distant branches, and the position of the other T. cruzi DTUs differed according to the molecular marker. The tree reconstructed with concatenated cox1 and GPI sequences confirmed the separation of the subgenus Trypanosoma (Schizotrypanum) sp. and the T. cruzi DTUs TcI, TcII, TcIII and TcIV. The evaluation of single nucleotide polymorphisms (SNPs) was informative for DTU differentiation using both genes. In the cox1 analysis, one SNP differentiated heterozygous hybrids from TcIV sequences. In the GPI analysis one SNP discriminated Tcbat from TcI, while another SNP distinguished TcI from TcIII. CONCLUSIONS: DNA barcoding using the cox1 gene is a reliable tool to distinguish T. cruzi from T. c. marinkellei, T. dionisii and T. rangeli and identify the main T. cruzi genotypes. PMID- 29037253 TI - ASXL gain-of-function truncation mutants: defective and dysregulated forms of a natural ribosomal frameshifting product? AB - BACKGROUND: Programmed ribosomal frameshifting (PRF) is a gene expression mechanism which enables the translation of two N-terminally coincident, C terminally distinct protein products from a single mRNA. Many viruses utilize PRF to control or regulate gene expression, but very few phylogenetically conserved examples are known in vertebrate genes. Additional sex combs-like (ASXL) genes 1 and 2 encode important epigenetic and transcriptional regulatory proteins that control the expression of homeotic genes during key developmental stages. Here we describe an ~150-codon overlapping ORF (termed TF) in ASXL1 and ASXL2 that, with few exceptions, is conserved throughout vertebrates. RESULTS: Conservation of the TF ORF, strong suppression of synonymous site variation in the overlap region, and the completely conserved presence of an EH[N/S]Y motif (a known binding site for Host Cell Factor-1, HCF-1, an epigenetic regulatory factor), all indicate that TF is a protein-coding sequence. A highly conserved UCC_UUU_CGU sequence (identical to the known site of +1 ribosomal frameshifting for influenza virus PA X expression) occurs at the 5' end of the region of enhanced synonymous site conservation in ASXL1. Similarly, a highly conserved RG_GUC_UCU sequence (identical to a known site of -2 ribosomal frameshifting for arterivirus nsp2TF expression) occurs at the 5' end of the region of enhanced synonymous site conservation in ASXL2. CONCLUSIONS: Due to a lack of appropriate splice forms, or initiation sites, the most plausible mechanism for translation of the ASXL1 and 2 TF regions is ribosomal frameshifting, resulting in a transframe fusion of the N terminal half of ASXL1 or 2 to the TF product, termed ASXL-TF. Truncation or frameshift mutants of ASXL are linked to myeloid malignancies and genetic diseases, such as Bohring-Opitz syndrome, likely at least in part as a result of gain-of-function or dominant-negative effects. Our hypothesis now indicates that these disease-associated mutant forms represent overexpressed defective versions of ASXL-TF. REVIEWERS: This article was reviewed by Laurence Hurst and Eugene Koonin. PMID- 29037255 TI - Objective measurement and clinical significance of IDO1 protein in hormone receptor-positive breast cancer. AB - BACKGROUND: Immunostimulatory therapies targeting immune-suppressive pathways produce durable responses in advanced solid tumors. Indoleamine 2,3-dioxygenase (IDO) is the rate-limiting oxidoreductase that catalyzes the degradation of tryptophan to kynurenine. IDO induces immune tolerance by downregulating CD8+ and effector CD4+ T cell responses. IDO1, the most active isoform, is expressed in diverse tumor types and can be targeted using small molecule inhibitors. We used an objective, in situ assay to measure IDO1 in a collection of hormone receptor positive breast cancers (HR+ BC). METHODS: IDO1 protein was measured using quantitative immunofluorescence in 362 stage I-III HR+ BC represented in tissue microarrays. IDO1 levels were determined in the tumor and stroma, and stratified using median cut-point. Associations between IDO1, clinico-pathological features and CD3+, CD8+, CD20+ and FOXP3 tumor-infiltrating lymphocytes were examined using chi2 and Mann-Whitney tests. Survival was studied using Kaplan-Meier estimator and a proportional hazards model. All tests were two-sided. RESULTS: IDO1 protein was observed in 76.2% of HR+ BC. There was no association between IDO1 and major clinico-pathological characteristics. Increased IDO1 correlated with decreased CD20+ infiltration (P = 0.0004) but not with CD3+, CD8+ or FOXP3 levels. Elevated IDO1 expression was associated with worse 20-year overall survival (log-rank P = 0.02, HR = 1.39, 95% C.I.: 1.05-1.82). IDO1 scores were independently associated with outcome in multivariable analysis. CONCLUSIONS: IDO1 protein is expressed in the majority of HR+ BC and is an independent negative prognostic marker. Additionally, IDO1 expression is negatively associated with tumor B-cell infiltration. Measurement of IDO1 has the potential to identify a population that might derive benefit from IDO1 blockade. PMID- 29037256 TI - Effects of timing on intracoronary autologous bone marrow-derived cell transplantation in acute myocardial infarction: a meta-analysis of randomized controlled trials. AB - BACKGROUND: Several cell-based therapies for adjunctive treatment of acute myocardial infarction have been investigated in multiple clinical trials, but the timing of transplantation remains controversial. We conducted a meta-analysis of randomized controlled trials to investigate the effects of timing on bone marrow derived cell (BMC) therapy in acute myocardial infarction (AMI). METHODS: A systematic literature search of PubMed, MEDLINE, and Cochrane Evidence-Based Medicine databases from January 2000 to June 2017 was performed on randomized controlled trials with at least a 3-month follow-up for patients with AMI undergoing emergency percutaneous coronary intervention (PCI) and receiving intracoronary BMC transfer thereafter. The defined end points were left ventricular (LV) ejection fraction, LV end-diastolic and end-systolic index. The data were analyzed to evaluate the effects of timing on BMC therapy. RESULTS: Thirty-four RCTs comprising a total of 2,307 patients were included; the results show that, compared to the control group, AMI patients who received BMC transplantation showed significantly improved cardiac function. BMC transplantation 3-7 days after PCI (+3.32%; 95% CI, 1.91 to 4.74; P < 0.00001) resulted in a significant increase of left ventricular ejection fraction (LVEF). As for the inhibitory effect on ventricular remodeling, BMC transplantation 3-7 days after PCI reduced LV end-diastolic indexes (-4.48; 95% CI, -7.98 to -0.98; P = 0.01) and LV end-systolic indexes (-6.73; 95% CI, -11.27 to -2.19; P = 0.004). However, in the groups who received BMC transplantation either within 24 hours or later than 7 days there was no significant effect on treatment outcome. In subgroup analysis, the group with LVEF <= 50% underwent a significant decrease in LV end-diastolic index after BMC transplantation (WMD = -3.29, 95% CI, -4.49 to 2.09; P < 0.00001); the decrease was even more remarkable in the LV end-systolic index after BMC transplantation in the group with LVEF <= 50% (WMD = -5.25, 95% CI, -9.30 to -1.20; P = 0.01), as well as in patients who received a dose of 10^7 10^8 cells (WMD = -12.99, 95% CI, -19.07 to -6.91; P < 0.0001). In the group with a follow-up of more than 12 months, this beneficial effect was significant and increased to a more pronounced effect of +3.58% (95% CI, 1.55 to 5.61; P = 0.0006) when compared with control. CONCLUSIONS: In this meta-analysis, BMC transfer at 3 to 7 days post-AMI was superior to transfer within 24 hours or more than 7 days after AMI in improving LVEF and decreasing LV end-systolic dimensions or LV end-diastolic dimensions. It is more effective in patients with lower baseline LVEF (<=50%) and the effect can last more than 12 months. PMID- 29037257 TI - Ventriculoperitoneal shunt insertion for hydrocephalus in human immunodeficiency virus-infected adults: a systematic review and meta-analysis protocol. AB - BACKGROUND: Hydrocephalus is a recognised complication of human immunodeficiency virus (HIV)-related opportunistic infections. Symptomatic raised cerebrospinal fluid pressure can be treated with ventriculoperitoneal shunt insertion (VPS). In HIV-infected patients however, there is a concern that VPS might be associated with unacceptably high rates of mortality. We aim to systematically review and appraise published literature to determine reported outcomes and identify predictors of outcome following VPS in relevant subgroups of HIV-infected adults. METHODS: The following electronic databases will be searched: The Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (PubMed), EMBASE, CINAHL (EBSCOhost), LILACS (BIREME), Research Registry ( www.researchregistry.com ), the metaRegister of Controlled Trials (mRCT) ( www.controlled-trials.com ), ClinicalTrials.gov ( www.clinicaltrials.gov ) and OpenSIGLE database. Any randomised studies, cohort studies, case-control studies, interrupted time series or sequential case series reporting survival following VPS in HIV-infected individuals will be included. If high-quality homogenous studies exist, meta analysis will be conducted to determine 1-, 6- and 12-month mortality with comparison made between underlying aetiologies of hydrocephalus. DISCUSSION AND CONCLUSION: This study will generate a comprehensive review of VPS in HIV infected patients for publication. The primary outcome of meta-analysis is 12 month survival. If only low-quality, heterogeneous studies are available, this study will demonstrate this deficiency and will be of value in justifying and aiding the design of future studies. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42016052239. PMID- 29037258 TI - Transplantation of Isl1+ cardiac progenitor cells in small intestinal submucosa improves infarcted heart function. AB - BACKGROUND: Application of cardiac stem cells combined with biomaterial scaffold is a promising therapeutic strategy for heart repair after myocardial infarction. However, the optimal cell types and biomaterials remain elusive. METHODS: In this study, we seeded Isl1+ embryonic cardiac progenitor cells (CPCs) into decellularized porcine small intestinal submucosa extracellular matrix (SIS-ECM) to assess the therapeutic potential of Isl1+ CPCs and the biocompatibility of SIS ECM with these cells. RESULTS: We observed that SIS-ECM supported the viability and attachment of Isl1+ CPCs. Importantly, Isl1+ CPCs differentiated into cardiomyocytes and endothelial cells 7 days after seeding into SIS-ECM. In addition, SIS-ECM with CPC-derived cardiomyocytes showed spontaneous contraction and responded to beta-adrenergic stimulation. Next, patches of SIS-ECM seeded with CPCs for 7 days were transplanted onto the outer surface of infarcted myocardium in mice. Four weeks after transplantation, the patches were tightly attached to the surface of the host myocardium and remained viable. Transplantation of patches improved cardiac function, decreased the left ventricular myocardial scarring area, and reduced fibrosis and heart failure. CONCLUSIONS: Transplantation of Isl1+ CPCs seeded in SIS-ECM represents an effective approach for cell-based heart therapy. PMID- 29037259 TI - Immuno-thermal ablations - boosting the anticancer immune response. AB - The use of immunomodulation to treat malignancies has seen a recent explosion in interest. The therapeutic appeal of these treatments is far reaching, and many new applications continue to evolve. In particular, immune modulating drugs have the potential to enhance the systemic anticancer immune effects induced by locoregional thermal ablation. The immune responses induced by ablation monotherapy are well documented, but independently they tend to be incapable of evoking a robust antitumor response. By adding immunomodulators to traditional ablative techniques, several researchers have sought to amplify the induced immune response and trigger systemic antitumor activity. This paper summarizes the work done in animal models to investigate the immune effects induced by the combination of ablative therapy and immunomodulation. Combination therapy with radiofrequency ablation, cryoablation, and microwave ablation are all reviewed, and special attention has been paid to the addition of checkpoint blockades. PMID- 29037260 TI - A novel protein derived from lamprey supraneural body tissue with efficient cytocidal actions against tumor cells. AB - BACKGROUND: In previous research, we found that cell secretion from the adult lamprey supraneural body tissues possesses cytocidal activity against tumor cells, but the protein with cytocidal activity was unidentified. METHODS: A novel lamprey immune protein (LIP) as defense molecule was first purified and identified in jawless vertebrates (cyclostomes) using hydroxyapatite column and Q Sepharose Fast Flow column. After LIP stimulation, morphological changes of tumor cells were analysed and measured whether in vivo or in vitro. RESULTS: LIP induces remarkable morphological changes in tumor cells, including cell blebbing, cytoskeletal alterations, mitochondrial fragmentation and endoplasmic reticulum vacuolation, and most of the cytoplasmic and organelle proteins are released following treatment with LIP. LIP evokes an elevation of intracellular calcium and inflammatory molecule levels. Our analysis of the cytotoxic mechanism suggests that LIP can upregulate the expression of caspase 1, RIPK1, RIP3 to trigger pyroptosis and necroptosis. To examine the effect of LIP in vivo, tumor xenograft experiments were performed, and the results indicated that LIP inhibits tumor growth without damage to mice. In addition, the cytotoxic action of LIP depended on the phosphatidylserine (PS) content of the cell membrane. CONCLUSIONS: These observations suggest that LIP plays a crucial role in tumor cell survival and growth. The findings will also help to elucidate the mechanisms of host defense in lamprey. PMID- 29037263 TI - Long-term effects of allergen-specific subcutaneous immunotherapy for house dust mite induced allergic rhinitis. AB - BACKGROUND: Allergic rhinitis is strongly associated with the presence of house dust mites. This study investigated the long-term effects of allergen-specific immunotherapy. Allergen-specific immunotherapy was applied over three years. The study was based on a 10-year follow up of patients with allergic rhinitis. METHODS: The study was conducted between 2001 and 2015. Skin prick test results and symptom scores were evaluated before (26 patients) and after 3 years (20 patients) of allergen-specific immunotherapy (using data from a previously published study), and 10 years after allergen-specific immunotherapy had ended (20 of 26 patients). RESULTS: The symptom scores before allergen-specific immunotherapy were significantly higher than those obtained after 3 years of allergen-specific immunotherapy and 10 years after allergen-specific immunotherapy (p 0.0175). CONCLUSION: Subcutaneous immunotherapy is an effective treatment for house dust mite induced allergic rhinitis. PMID- 29037262 TI - Molecular and virulence characterization of highly prevalent Streptococcus agalactiae circulated in bovine dairy herds. AB - Bovine mastitis caused by Streptococcus agalactiae continues to be one of the major veterinary and economic issues in certain areas of the world. The more prevalent S. agalactiae strains that cause bovine mastitis in China dairy farms belong to a number of bovine-adapted sequence types (STs) ST67, ST103 and ST568. However, it is unknown why these STs can emerge as highly prevalent clones in bovine dairy farms. Here, to determine if a variety of virulence characteristics were associated with these highly prevalent STs, the molecular and virulence characterization of 116 strains isolated from bovine, human, fish and environment were analyzed. Our data showed that all bovine-adapted strains could be assigned to capsular genotype Ia or II, and carried pilus island 2b, and lactose operon. Importantly, we demonstrated that the growth ability in milk, biofilm formation ability and adhesion ability to bovine mammary epithelial cells (BMECs) were significantly higher for all bovine-adapted strains compared to strains from other origins. Additionally, ST103 and ST568 strains exhibited significantly higher hemolytic activity and cytotoxicity than ST67 strains. In conclusion, our study provides substantial evidence for the hypothesis that the virulence characteristics including efficient growth in milk, elevated biofilm formation ability, together with strong adhesion ability might have favored the high prevalence of the STs in the bovine environment, whereas the hemolytic activity and cytotoxicity were not the crucial characteristics. PMID- 29037264 TI - Cold acclimation increases cold tolerance independently of diapause programing in the bean bug, Riptortus pedestris. AB - The bean bug (Riptortus pedestris) is a pest of soybeans and other legumes in Japan and other Asian countries. It enters a facultative adult diapause on exposure to short days. While photoperiodism and diapause are well understood in R. pedestris, knowledge of cold tolerance is very limited, as is information on the effect of diapause on cold tolerance. We examined the effect of photoperiod, cold acclimation, and feeding status on cold tolerance in R. pedestris. We found that cold acclimation significantly increased survival at -10 degrees C in both long- and short-day adult R. pedestris. Since the difference in cold survival between long- and short-day cold-acclimated groups was only marginal, we conclude that entering diapause is not crucial for R. pedestris to successfully pass through cold acclimation and become cold tolerant. We observed similar effects in 5th instar nymphs, with both long- and short-day cold-acclimated groups surviving longer cold exposures compared with non-acclimated groups. Starvation, which was tested only in adult bugs, had only a negligible and negative impact on cold survival. Although cold tolerance significantly increased with cold acclimation in adult bugs, supercooling capacity unexpectedly decreased. Our results suggest that changes in supercooling capacity as well as in water content are unrelated to cold tolerance in R. pedestris. An analysis of metabolites revealed differences between the treatments, and while several metabolites markedly increased with cold acclimation, their concentrations were too low to have a significant effect on cold tolerance. PMID- 29037261 TI - Distinct deposition of amyloid-beta species in brains with Alzheimer's disease pathology visualized with MALDI imaging mass spectrometry. AB - Amyloid beta (Abeta) deposition in the brain is an early and invariable feature of Alzheimer's disease (AD). The Abeta peptides are composed of about 40 amino acids and are generated from amyloid precursor proteins (APP), by beta- and gamma secretases. The distribution of individual Abeta peptides in the brains of aged people, and those suffering from AD and cerebral amyloid angiopathy (CAA), is not fully characterized. We employed the matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) to illustrate the spatial distribution of a broad range of Abeta species in human autopsied brains. With technical advancements such as formic acid pretreatment of frozen autopsied brain samples, we have: i) demonstrated that Abeta1-42 and Abeta1-43 were selectively deposited in senile plaques while full-length Abeta peptides such as Abeta1-36, 1-37, 1-38, 1-39, 1-40, and Abeta1-41 were deposited in leptomeningeal blood vessels. ii) Visualized distinct depositions of N-terminal truncated Abeta40 and Abeta42, including pyroglutamate modified at Glu-3 (N3pE), only with IMS for the first time. iii) Demonstrated that one single amino acid alteration at the C-terminus between Abeta1-42 and Abeta1-41 results in profound changes in their distribution pattern. In vitro, this can be attributed to the difference in the self aggregation ability amongst Abeta1-40, Abeta1-41, and Abeta1-42. These observations were further confirmed with immunohistochemistry (IHC), using the newly developed anti-Abeta1-41 antibody. Here, distinct depositions of truncated and/or modified C- and N-terminal fragments of Abetas in AD and CAA brains with MALDI-IMS were visualized in a spacio-temporal specific manner. Specifically, Abeta1-41 was detected both with MALDI-IMS and IHC suggesting that a single amino acid alteration at the C-terminus of Abeta results in drastic distribution changes. These results suggest that MALDI-IMS could be used as a standard approach in combination with clinical, genetic, and pathological observations in understanding the pathology of AD and CAA. PMID- 29037265 TI - Does skeletal muscle carnitine availability influence fuel selection during exercise? AB - Fat and carbohydrate are the major fuel sources utilised for oxidative, mitochondrial ATP resynthesis during human skeletal muscle contraction. The relative contribution of these two substrates to ATP resynthesis and total energy expenditure during exercise can vary substantially, and is predominantly determined by fuel availability and exercise intensity and duration. For example, the increased ATP demand that occurs with an increase in exercise intensity is met by increases in both fat and carbohydrate oxidation up to an intensity of approximately 60-70 % of maximal oxygen consumption. When exercise intensity increases beyond this workload, skeletal muscle carbohydrate utilisation is accelerated, which results in a reduction and inhibition of the relative and absolute contribution of fat oxidation to total energy expenditure. However, the precise mechanisms regulating muscle fuel selection and underpinning the decline in fat oxidation remain unclear. This brief review will primarily address the theory that a carbohydrate flux-mediated reduction in the availability of muscle carnitine to the mitochondrial enzyme carnitine palmitoyltransferase 1, a rate limiting step in mitochondrial fat translocation, is a key mechanism for the decline in fat oxidation during high-intensity exercise. This is discussed in relation to recent work in this area investigating fuel metabolism at various exercise intensities and taking advantage of the discovery that skeletal muscle carnitine content can be nutritionally increased in vivo in human subjects. PMID- 29037266 TI - Is cognitive-behavioural therapy more effective than relaxation therapy in the treatment of anxiety disorders? A meta-analysis. AB - BACKGROUND: It is not clear whether relaxation therapies are more or less effective than cognitive and behavioural therapies in the treatment of anxiety. The aims of the present study were to examine the effects of relaxation techniques compared to cognitive and behavioural therapies in reducing anxiety symptoms, and whether they have comparable efficacy across disorders. METHOD: We conducted a meta-analysis of 50 studies (2801 patients) comparing relaxation training with cognitive and behavioural treatments of anxiety. RESULTS: The overall effect size (ES) across all anxiety outcomes, with only one combined ES in each study, was g = -0.27 [95% confidence interval (CI) = -0.41 to -0.13], favouring cognitive and behavioural therapies (number needed to treat = 6.61). However, no significant difference between relaxation and cognitive and behavioural therapies was found for generalized anxiety disorder, panic disorder, social anxiety disorder and specific phobias (considering social anxiety and specific phobias separately). Heterogeneity was moderate (I2 = 52; 95% CI = 33 65). The ES was significantly associated with age (p < 0.001), hours of cognitive and/or behavioural therapy (p = 0.015), quality of intervention (p = 0.007), relaxation treatment format (p < 0.001) and type of disorder (p = 0.008), explaining an 82% of variance. CONCLUSIONS: Relaxation seems to be less effective than cognitive and behavioural therapies in the treatment of post-traumatic stress disorder, and obsessive-compulsive disorder and it might also be less effective at 1-year follow-up for panic, but there is no evidence that it is less effective for other anxiety disorders. PMID- 29037267 TI - Tracking of infant and young child feeding practices among 9- to 24-month-old children in Nepal: the MAL-ED Birth Cohort Study. AB - OBJECTIVE: The present study aimed to assess infant and young child feeding (IYCF) practices and the tracking of dietary diversity score (DDS), intakes of Fe and vitamin A-rich foods and meal frequency in a peri-urban area in Nepal. Furthermore, to explore whether sociodemographic factors were associated with tracking patterns of these IYCF practices. DESIGN: Longitudinal study. Monthly food intake was measured by 24 h recall. Four time slots were used (9-12, 13-16, 17-20 and 21-24 months). Tracking of IYCF practices was investigated using generalized estimating equations (GEE) models and Cohen's weighted kappa. Multinominal logistic regression was used to identify determinants for tracking of the IYCF practices. SETTING: Bhaktapur municipality, Nepal. SUBJECTS: Children (n 229) aged 9-24 months, randomly selected. RESULTS: Prevalence of minimum meal frequency was higher than for minimum dietary diversity at all time slots. Tracking based on absolute measures (GEE models) was moderate for DDS (0.48) and meal frequency (0.53), and low for intakes of Fe- (0.23) and vitamin A-rich (0.35) foods. Tracking based on rank measured was moderate for DDS and meal frequency, and fair for Fe- and vitamin A-rich foods. Low socio-economic status significantly increased the odds (OR; 95 % CI) of tracking of low v. high DDS (3.31; 1.44, 7.60) and meal frequency (3.46; 1.54, 7.76). CONCLUSIONS: Low tracking for intakes of Fe- and vitamin A-rich foods implies that interventions to improve these IYCF practices must address underlying causes for irregular intake to have sustainable effects. PMID- 29037268 TI - Probiotics, prebiotics, synbiotics and insulin sensitivity. AB - Animal studies indicate that the composition of gut microbiota may be involved in the progression of insulin resistance to type 2 diabetes. Probiotics and/or prebiotics could be a promising approach to improve insulin sensitivity by favourably modifying the composition of the gut microbial community, reducing intestinal endotoxin concentrations and decreasing energy harvest. The aim of the present review was to investigate the effects of probiotics, prebiotics and synbiotics (a combination of probiotics and prebiotics) on insulin resistance in human clinical trials and to discuss the potential mechanisms whereby probiotics and prebiotics improve glucose metabolism. The anti-diabetic effects of probiotics include reducing pro-inflammatory cytokines via a NF-kappaB pathway, reduced intestinal permeability, and lowered oxidative stress. SCFA play a key role in glucose homeostasis through multiple potential mechanisms of action. Activation of G-protein-coupled receptors on L-cells by SCFA promotes the release of glucagon-like peptide-1 and peptide YY resulting in increased insulin and decreased glucagon secretion, and suppressed appetite. SCFA can decrease intestinal permeability and decrease circulating endotoxins, lowering inflammation and oxidative stress. SCFA may also have anti-lipolytic activities in adipocytes and improve insulin sensitivity via GLUT4 through the up-regulation of 5'-AMP-activated protein kinase signalling in muscle and liver tissues. Resistant starch and synbiotics appear to have favourable anti-diabetic effects. However, there are few human interventions. Further well-designed human clinical studies are required to develop recommendations for the prevention of type 2 diabetes with pro- and prebiotics. PMID- 29037269 TI - Prevalence of prediabetes and modifiable factors in an ethnic group of Mexico: the Comcaac Project. AB - OBJECTIVE: To determine the prevalence of and modifiable factors associated with prediabetes in the Comcaac Indians. DESIGN: Cross-sectional study where prediabetes was defined using fasting plasma glucose, 2 h plasma glucose and glycated Hb (HbA1c). Physical, anthropometric and biochemical measurements, medical record, socio-economic, dietary and physical activity information were collected. The modifiable factors associated with prediabetes were assessed using multiple logistic regression. Settings Comcaac Indian communities of Punta Chueca and El Desemboque, Sonora, Mexico. SUBJECTS: Adults (n 227) aged 20 years or older. RESULTS: The sex- and age-adjusted prevalence (95 % CI) of prediabetes was 47.1 (40.8, 53.5) % in the overall population; age-adjusted prevalence was 47.3 (35.6, 59.0) % in men and 46.7 (39.1, 54.3) % in women. The modifiable factors associated with a risk of prediabetes (OR; 95 % CI) were light-intensity physical activity (per 1 h/week increase: 1.04; 1.01, 1.07) and insulin resistance (homeostasis model assessment of insulin resistance score >6.1 v. <4.1: 4.62; 1.37, 15.51). Increased consumption of a traditional dietary pattern based on fish and seafood, low-fat cereals, fruits and vegetables was a protective factor (0.49; 0.31, 0.79). All variables were modelled together and adjusted for age and sex. CONCLUSIONS: The high prediabetes prevalence found in the Comcaac community is alarming because it represents a large number of people who are at risk for type 2 diabetes. The identification of modifiable factors associated with prediabetes that are specific to this population may be useful for designing effective strategies to prevent prediabetes. PMID- 29037270 TI - Micron-Scale Deformation: A Coupled In Situ Study of Strain Bursts and Acoustic Emission. AB - Plastic deformation of micron-scale crystalline materials differs considerably from bulk samples as it is characterized by stochastic strain bursts. To obtain a detailed picture of the intermittent deformation phenomena, numerous micron-sized specimens must be fabricated and tested. An improved focused ion beam fabrication method is proposed to prepare non-tapered micropillars with excellent control over their shape. Moreover, the fabrication time is less compared with other methods. The in situ compression device developed in our laboratory allows high accuracy sample positioning and force/displacement measurements with high data sampling rates. The collective avalanche-like motion of the dislocations is observed as stress decreases on the stress-strain curves. An acoustic emission (AE) technique was employed for the first time to study the deformation behavior of micropillars. The AE technique provides important additional in situ information about the underlying processes during plastic deformation and is especially sensitive to the collective avalanche-like motion of the dislocations observed as the stress decreases on the deformation curves. PMID- 29037271 TI - Trajectories of caregiver burden in families of adult cystic fibrosis patients. AB - OBJECTIVES: Little is known about the experience of family caregivers of adults with cystic fibrosis (CF). This information is important for the identification of caregivers at risk for burden. METHODS: This was a longitudinal analysis of survey data obtained from caregivers of adult CF patients participating in an early intervention palliative care trial. Caregivers completed the validated Brief Assessment Scale for Caregivers (BASC) repeatedly over a 28-month period. Mixed-effects modeling evaluated multivariate associations with positive and negative caregiver perceptions over time. RESULTS: Of the 54 caregivers, 47.9% were spouses. The mean age was 50.9 years (SD = 13.2); 72.2% were women; 75.9% were married; and 63.0% were employed. At baseline, the BASC revealed large variations in positive and negative perceptions of caregiving. Although average scores over time were unchanging, variation was greater across caregivers than within caregivers (0.49 vs. 0.27, respectively). At baseline, the positive impact of caregiving in the sample was higher than the negative impact. Multivariate analysis revealed that patients' baseline pulmonary function and their full-time employment status predicted caregiver burden over time. SIGNIFICANCE OF RESULTS: Caregivers of CF patients varied in their positive and negative caregiving experiences, although burden levels in individual caregivers were stable over time. When the disease was advanced, caregivers of CF patients experienced more overall burden but also more positive impact. This suggests that the role of caregivers may become more meaningful as disease severity worsens. In addition, full-time patient employment was associated with lower caregiver burden regardless of disease severity. This suggests that burden in CF caregivers may be predicted by financial strain or benefits conferred by patient employment. These associations require further investigation to determine whether highly burdened caregivers can be identified and assisted using tailored interventions. PMID- 29037272 TI - Affective and Cognitive Verbal Theory of Mind in Schizophrenia: Results From a Novel Paradigm. AB - OBJECTIVES: Impairments of Theory of Mind (ToM) have been repeatedly demonstrated in patients with schizophrenia (SCZ). However, only a handful of studies have explored deficits in affective and cognitive subcomponents of ToM. Thus, this study aims to examine affective and cognitive ToM abilities in SCZ by using a novel, verbal paradigm. METHODS: Twenty-four SCZ and 22 healthy comparison subjects (HC) completed a battery of tasks, which consisted of: (i) Brief Cognitive Assessment Tool for Schizophrenia (B-CATS), (ii) three well-established tasks measuring social cognitive abilities, and (iii) original tasks which assess ability to infer cognitive and affective mental states based on everyday verbal social interactions. RESULTS: In line with previous findings, SCZ were outperformed by HC in all tasks. However, the interaction effect of the group and the task showed that cognitive (as opposed to affective) ToM was more profoundly impaired in patients with SCZ. CONCLUSIONS: It is proposed that in SCZ group cognitive ToM is more impaired as it involves more effortful reflective processes, while affective ToM, which is more automatic and based on reflexive processes, may differentiate patients from healthy comparison subjects to a lesser extent. (JINS, 2018, 24, 305-309). PMID- 29037273 TI - Determinants of takeaway and fast food consumption: a narrative review. AB - Out-of-home foods (takeaway, take-out and fast foods) have become increasingly popular in recent decades and are thought to be a key driver in increasing levels of overweight and obesity due to their unfavourable nutritional content. Individual food choices and eating behaviours are influenced by many interrelated factors which affect the results of nutrition-related public health interventions. While the majority of research based on out-of-home foods comes from Australia, the UK and USA, the same issues (poor dietary habits and increased prevalence of non-communicable disease) are of equal concern for urban centres in developing economies undergoing 'nutrition transition' at a global scale. The present narrative review documents key facets, which may influence out of-home food consumption, drawn from biological, societal, environmental, demographic and psychological spheres. Literature searches were performed and references from relevant papers were used to find supplementary studies. Findings suggest that the strongest determinants of out-of-home food availability are density of food outlets and deprivation within the built environment; however, the association between socio-economic status and out-of-home food consumption has been challenged. In addition, the biological and psychological drives combined with a culture where overweight and obesity are becoming the norm makes it 'fashionable' to consume out-of-home food. Other factors, including age group, ethnicity and gender demonstrate contrasting effects and a lack of consensus. It is concluded that further consideration of the determinants of out-of-home food consumption within specific populations is crucial to inform the development of targeted interventions to reduce the impact of out-of-home foods on public health. PMID- 29037274 TI - Morphometric and molecular analyses of two digenean species from the mullet: Skrjabinolecithum spinosum n. sp. from the Russian southern Far East and Unisaccus tonkini n. sp. from Vietnam. AB - Adults of Skrjabinolecithum spinosum n. sp. were discovered in Mugil cephalus from the Gulf of Peter the Great in southern Far-East Russia. Additionally, adults of Unisaccus tonkini n. sp. were found in the intestine of Moolgarda cunnesius and Moolgarda seheli from the coastal waters of Cat Ba Island, Tonkin Bay, northern Vietnam. Skrjabinolecithum spinosum n. sp. possesses a larger body, and ventral and oral sucker size in comparison with Skrjabinolecithum vitellosum, a smaller pharynx size and body length/width rate ratio in comparison to Skrjabinolecithum pyriforme, a smaller body length and prepharynx size in comparison to Skrjabinolecithum lobolecitum and a smaller pharynx length and egg size in comparison to Skrjabinolecithum indicum and S. lobolecitum. The new species also differs from S. indicum, S. lobolecitum and S. vitellosum by the form of the testis, and from the last two species by the presence of a two branched intestine. The morphometric parameters of S. spinosum n. sp. are similar to those of Skrjabinolecithum spasskii. However, S. spinosum n. sp., unlike S. spasskii, has an armed hermaphroditic duct. Unisaccus tonkini n. sp. is similar to Unisaccus spinosus (Martin, 1973), Unisaccus brisbanensis (Martin, 1973) and Unisaccus overstreeti (Ahmad, 1987) in body size but differs in oral sucker, pharynx and hermaphroditic sac size from U. spinosus, and in ventral sucker and ovary size from U. brisbanensis and U. overstreeti. Bayesian phylogenetic analysis, based on combined data of internal transcribed spacer 2 (ITS2) and partial 28S rRNA gene sequences, confirmed the validity of S. spinosum n. sp. and U. tonkini n. sp. Analysis of interrelationships of the family Haploporidae, including molecular data on new species, showed that the Waretrematinae subfamily is more heterogeneous in comparison with Haploporinae and Forticulcitinae, and includes U. tonkini n. sp. PMID- 29037275 TI - Intergenerational transmission of family meal patterns from adolescence to parenthood: longitudinal associations with parents' dietary intake, weight related behaviours and psychosocial well-being. AB - OBJECTIVE: The present study examined longitudinal associations between four family meal patterns (i.e. never had regular family meals, started having regular family meals, stopped having regular family meals, maintained having regular family meals) and young adult parents' dietary intake, weight-related behaviours and psychosocial well-being. In addition, family meal patterns of parents were compared with those of non-parents. DESIGN: Analysis of data from the longitudinal Project EAT (Eating and Activity in Adolescents and Young Adults) study. Linear and logistic regressions were used to examine the associations between family meal patterns and parents' dietary intake, weight-related behaviours and psychosocial well-being. SETTING: School and in-home settings. SUBJECTS: At baseline (1998; EAT-I), adolescents (n 4746) from socio-economically and racially/ethnically diverse households completed a survey and anthropometric measurements at school. At follow-up (2015; EAT-IV), participants who were parents (n 726) and who were non-parents with significant others (n 618) completed an online survey. RESULTS: Young adult parents who reported having regular family meals as an adolescent and as a parent ('maintainers'), or who started having regular family meals with their own families ('starters'), reported more healthful dietary, weight-related and psychosocial outcomes compared with young adults who never reported having regular family meals ('nevers'; P<0.05). In addition, parents were more likely to be family meal starters than non-parents. CONCLUSIONS: Results suggest that mental and physical health benefits of having regular family meals may be realized as a parent whether the routine of regular family meals is carried forward from adolescence into parenthood, or if the routine is started in parenthood. PMID- 29037276 TI - Analysis of single nucleotide polymorphisms variation associated with important economic and computed tomography measured traits in Texel sheep. AB - Sheep are an important part of the global agricultural economy. Growth and meat production traits are significant economic traits in sheep. The Texel breed is the most popular terminal sire breed in the UK, mainly selected for muscle growth and lean carcasses. This is a study based on a genome-wide association approach that investigates the links between some economically important traits, including computed tomography (CT) measurements, and molecular polymorphisms in UK Texel sheep. Our main aim was to identify single nucleotide polymorphisms (SNP) associated with growth, carcass, health and welfare traits of the Texel sheep breed. This study used data from 384 Texel rams. Data comprised ten traits, including two CT measured traits. The phenotypic data were placed in four categories: growth traits, carcass traits, health traits and welfare traits. De regressed estimated breeding values (EBV) for these traits together with sire genotypes derived with the Ovine 50 K SNP array of Illumina were jointly analysed in a genome wide association analysis. Eight novel chromosome-wise significant associations were found for carcass, growth, health and welfare traits. Three significant markers were intronic variants and the remainder intergenic variants. This study is a first step to search for genomic regions controlling CT-based productivity traits related to body and carcass composition in a terminal sire sheep breed using a 50 K SNP genome-wide array. Results are important for the further development of strategies to identify causal variants associated with CT measures and other commercial traits in sheep. Independent studies are needed to confirm these results and identify candidate genes for the studied traits. PMID- 29037277 TI - Development and preliminary validation of the physician support of skin self examination scale. AB - Skin self-examination (SSE) is a crucial preventive health behaviour in melanoma survivors, as it facilitates early detection. Physician endorsement of SSE is important for the initiation and maintenance of this behaviour. This study focussed on the preliminary validation of a new nine-item measure assessing physician support of SSE in melanoma patients. English and French versions of this measure were administered to 188 patients diagnosed with melanoma in the context of a longitudinal study investigating predictors and facilitators of SSE. Structural validity was investigated using exploratory factor analysis conducted in Mplus and convergent and divergent validity was assessed using bivariate correlations conducted in spss. Results suggest that the scale is a unidimensional and reliable measure of physician support for SSE. Given the uncertainty regarding the optimal frequency of SSE for at-risk individuals, we recommend that future psychometric evaluations of this scale consider tailoring items according to the most up-to-date research on SSE effectiveness. PMID- 29037278 TI - Improving Skin Integrity in Babies Diagnosed with Neonatal Abstinence Syndrome. AB - Neonatal abstinence syndrome (NAS) is becoming a national epidemic. Neonates with NAS display myriad signs during withdrawal from the drugs they were exposed to in utero. One sign is skin excoriation, as well as other skin injuries. While care of the neonate experiencing NAS has been well documented in the literature, the care of the skin of that neonate has not. The purpose of this monograph is to discuss the current literature on neonatal abstinence syndrome, to describe the anatomy and physiology of neonatal skin, and to make recommendations for the prevention and care of the most common neonatal skin injuries seen in infants exhibiting NAS. PMID- 29037279 TI - Continuing Education Home Study Course...8. PMID- 29037280 TI - Screening of Chemical Dyes in Traditional Chinese Medicine by HPTLC-MS. AB - It has been uncovered that chemical dyes are illegally used in traditional Chinese medicines to brighten color and cover up inferiority, which threaten the safety of patients. In the present study, an HPTLC-MS method was developed for the effective screening of 11 chemical dyes (Sudan I, II, III, and IV; 808 Scarlet; Sudan Red 7B; malachite green; Basic Orange 2; auramine; Orange II; and erythrosine) in traditional Chinese medicine (TCM) raw materials and Chinese patent medicines. Firstly, unwashed HPTLC plates were chosen by comparing the background signals of the TLC plates used directly and prewashed with analytical grade and HPLC grade solvents. Twice developments were conducted to isolate chemical dyes of different polarity. Possible adulterants were preliminarily identified by comparing Rf values and in situ UV-Vis spectra with those of the references. Further confirmation was conducted by tandem MS analysis via an elution head-based TLC-MS interface. Sudan I and IV, 808 Scarlet, and Orange II were successfully detected in eight batches of TCM. The proposed method could be applied as a reliable technology for the screening of chemical dyes in TCM. PMID- 29037281 TI - Conference Proceedings-Poster Abstracts, San Diego, CA. PMID- 29037283 TI - Abstracts from the 15th National Neonatal Nurses Conference and 18th National Mother Baby Nurses Conference Orlando FL, September 17-19, 2015. PMID- 29037285 TI - Continuing Education Course. PMID- 29037286 TI - Do rats pass the sniff test? PMID- 29037287 TI - Provision of ART to individuals infected with HIV: impact on the epidemiology and control of tuberculosis. PMID- 29037288 TI - Global asthma burden and poverty in the twenty-first century. PMID- 29037289 TI - Conducting high-quality tuberculosis clinical trials in China: opportunities and challenges. AB - Tuberculosis (TB) is an ancient disease that is a devastating threat to public health. As the country with the second highest number of TB cases and the highest number of multidrug-resistant TB cases in the world, China is now striving to be at the forefront of TB research and drug development. This article is based on the observations made by the authors during the recent partnership initiative between the National Institutes of Health and the Chinese TB community, as well as an extensive literature review. The article examines the advantages and challenges of conducting large-scale international multicenter TB clinical trials in China. China is becoming an excellent location for new TB drug trials, especially in collaboration with international organizations that bring considerable technical assistance, quality control, training, and oversight with these partnerships. PMID- 29037290 TI - Onions and prevalence surveys: how to analyze and quantify tuberculosis case finding gaps. AB - Finding the missing 4 million tuberculosis (TB) patients is one of the greatest challenges facing the TB community. The optimal approaches to this will vary by country, but there is no consistent process for analyzing the potential benefit of different strategies, or for deciding which approaches are most appropriate for a given setting. Here, I bring together the Onion Model-as a way to think through health system structures-and evidence from prevalence surveys. The result is a structured process for prioritizing different strategies for case finding. Outcomes vary widely by setting, pointing to the importance of each country undertaking such a prioritization process. PMID- 29037291 TI - The devil we know: is the use of injectable agents for the treatment of MDR-TB justified? AB - For decades, second-line injectable agents (IAs) have been the cornerstone of treatment for multidrug-resistant tuberculosis (MDR-TB). Although evidence on the efficacy of IAs is limited, there is an expanding body of evidence on the serious adverse events caused by these drugs. Here, we present the results of a structured literature review of the safety and efficacy of IAs. We review the continued widespread use of these agents in the context of therapeutic alternatives-most notably the newer TB drugs, bedaquiline and delamanid-and from the context of human rights, ethics and patient-centered care. We conclude that there is limited evidence of the efficacy of IAs, clear evidence of the risks of these drugs, and that persons living with MDR-TB should be informed about these risks and provided with access to alternative therapeutic options. PMID- 29037292 TI - Accuracy of giant African pouched rats for diagnosing tuberculosis: comparison with culture and Xpert(r) MTB/RIF. AB - SETTING: Enhanced tuberculosis (TB) case finding using detection rats in Tanzania. OBJECTIVES: To assess the diagnostic accuracy of detection rats compared with culture and Xpert(r) MTB/RIF, and to compare enhanced case-finding algorithms using rats in smear-negative presumptive TB patients. DESIGN: A fully paired diagnostic accuracy study in which sputum of new adult presumptive TB patients in Tanzania was tested using smear microscopy, 11 detection rats, culture and Xpert. RESULTS: Of 771 eligible participants, 345 (45%) were culture positive for Mycobacterium tuberculosis, and 264 (34%) were human immunodeficiency virus (HIV) positive. The sensitivity of the detection rats was up to 75.1% (95%CI 70.1-79.5) when compared with culture, and up to 81.8% (95%CI 76.0-86.5) when compared with Xpert, which was statistically significantly higher than the sensitivity of smear microscopy. Corresponding specificity was 40.6% (95%CI 35.9-45.5) compared with culture. The accuracy of rat detection was independent of HIV status. Using rats for triage, followed by Xpert, would result in a statistically higher yield than rats followed by light-emitting diode fluorescence microscopy, whereas the number of false-positives would be significantly lower than when using Xpert alone. CONCLUSION: Although detection rats did not meet the accuracy criteria as standalone diagnostic or triage testing for presumptive TB, they have additive value as a triage test for enhanced case finding among smear-negative TB patients if more advanced diagnostics are not available. PMID- 29037293 TI - Community-based active case finding for tuberculosis in rural western China: a cross-sectional study. AB - SETTING: Current passive case finding strategies are not effective at identifying tuberculosis (TB) patients in rural China. OBJECTIVE: To evaluate a community based, active case finding (ACF) scheme in identifying symptomatic individuals with TB. DESIGN: We conducted door-to-door household visits of all residents aged ?15 years at two rural sites to screen for TB symptoms. Individuals with symptoms were enrolled and asked to provide three sputum samples. All participants underwent chest X-ray, and microbiologic detection of Mycobacterium tuberculosis from sputum samples using microscopy, solid culture and Xpert(r) MTB/RIF was performed. RESULTS: Among the 19 334 residents screened for TB symptoms, 865 (4.5%) reported having ?1 symptom. A total of 52 TB cases were detected, 11 of whom had microbiologic confirmation. Xpert identified all five M. tuberculosis culture-positive cases and yielded an additional three diagnoses. Prevalence of newly detected TB at the two sites through ACF was respectively 475 and 196 per 100 000 population. These estimates are respectively four and eight times, on average, higher than those identified through passive surveillance during the previous 5-year period for the two sites. CONCLUSION: Community-based symptom screening followed by laboratory tests was found to be feasible and effective in increasing TB case finding in rural China. PMID- 29037294 TI - Diagnostic yield of active case finding for tuberculosis and HIV at the household level in slums in Haiti. AB - SETTING: Haiti has the highest burden of tuberculosis (TB) in the Americas, with an estimated prevalence of 254 per 100 000 population. The Haitian Group for the Study of Kaposi's Sarcoma and Opportunistic Infections (Groupe Haitien d'Etude du Sarcome de Kaposi et des Infections Opportunistes, GHESKIO) conducted active case finding (ACF) for TB at the household level in nine slums in Port-au-Prince. OBJECTIVE: We report on the prevalence of undiagnosed TB detected through GHESKIO's ACF campaign. DESIGN: From 1 August 2014 to 31 July 2015, we conducted a retrospective cohort analysis using GHESKIO's ACF campaign data. All individuals who reported chronic cough (cough ?2 weeks) were tested for TB at GHESKIO, and those aged ?10 years were included in the analyses. RESULTS: Of 104 097 individuals screened in the community, 5598 (5%) reported chronic cough and satisfied the study inclusion criteria. A total of 1110 (20%) were diagnosed with active TB disease (prevalence of 1066/100 000). Of the 5472 (98%) patients tested for human immunodeficiency virus (HIV), 528 (10%) were HIV-positive; 143 (3%) patients were diagnosed with both diseases. CONCLUSION: Household-level screening for cough with TB and HIV testing for symptomatic patients was a high-yield strategy, leading to the detection of a prevalence of undiagnosed disease exceeding national estimates by more than four-fold for TB, and by five-fold for HIV. PMID- 29037295 TI - Does antiretroviral treatment increase the infectiousness of smear-positive pulmonary tuberculosis? AB - BACKGROUND: Understanding of the effects of human immunodeficiency virus (HIV) infection and antiretroviral treatment (ART) on Mycobacterium tuberculosis transmission dynamics remains limited. We undertook a cross-sectional study among household contacts of smear-positive pulmonary tuberculosis (TB) cases to assess the effect of established ART on the infectiousness of TB. METHOD: Prevalence of tuberculin skin test (TST) positivity was compared between contacts of index cases aged 2-10 years who were HIV-negative, HIV-positive but not on ART, on ART for <1 year and on ART for ?1 year. Random-effects logistic regression was used to take into account clustering within households. RESULTS: Prevalence of M. tuberculosis infection in contacts of HIV-negative patients, HIV-positive patients on ART ?1 year and HIV-positive patients not on ART/on ART <1 year index cases was respectively 44%, 21% and 22%. Compared to contacts of HIV-positive index cases not on ART or recently started on ART, the odds of TST positivity was similar in contacts of HIV-positive index cases on ART ?1 year (adjusted OR [aOR] 1.0, 95%CI 0.3-3.7). The odds were 2.9 times higher in child contacts of HIV negative index cases (aOR 2.9, 95%CI 1.0-8.2). CONCLUSIONS: We found no evidence that established ART increased the infectiousness of smear-positive, HIV-positive index cases. PMID- 29037296 TI - Tuberculosis in recipients of solid-organ transplants during 1995-2015 in Cali, Colombia. AB - SETTING: Tuberculosis (TB) in solid-organ transplants (SOTs) is an important opportunistic infection associated with mortality and graft loss. SOT recipients carry a higher risk of contracting active TB than the general population. Clinical and radiographic presentations are non-specific, and sputum smear and culture have low yields. TB patients with SOTs require standard anti-tuberculosis treatment. However, rifampicin (RMP) use is associated with a 30% rate of acute graft rejection (AGR) and a 20% rate of transplant loss. OBJECTIVE: To determine treatment outcomes in SOT recipients with active TB. DESIGN: A retrospective study of clinical and microbiological data and TB treatment outcomes. RESULTS: Among the 2349 transplants assessed, active TB was detected in 31 recipients; 55% had pulmonary TB and 40% were sputum smear-positive. In 32% of the patients, TB was diagnosed 30 days after symptom onset, 77% of the patients were cured and 10% died. AGR occurred in 13%. CONCLUSION: TB was diagnosed in <30 days. Anti tuberculosis treatment without RMP (80% vs. 67%; P = 0.48, OR 0.5, 95%CI 0.07 3.55) and with moxifloxacin yielded higher treatment success rates and a lower risk of AGR. PMID- 29037297 TI - Innovative approach to the design and evaluation of treatment adherence interventions for drug-resistant TB. AB - BACKGROUND: Drug-resistant tuberculosis (DR-TB) treatment is expensive, lengthy, and can cause severe side effects. Patients face socio-economic, psychosocial, and systemic barriers to adherence; poor adherence results in poor treatment outcomes. OBJECTIVE: To estimate the effects of the components of the information motivation-behavioral skills model on DR-TB treatment adherence. DESIGN: We recruited 326 adults receiving DR-TB treatment and 86 of their health care service providers from 40 health centers in Lima, Peru. The main outcome was adherence (i.e., the proportion of prescribed doses taken by a patient). Exposure measures were adherence information, motivation, and behavioral skills; loss to follow-up during previous TB treatment(s); providers' work engagement; and patient-perceived support from his/her social network. RESULTS: Structural equation modeling revealed that adherence information and motivation had positive effects on adherence, but only if mediated through behavioral skills (beta = 0.02, P < 0.01 and beta = 0.07, P < 0.001, respectively). Behavioral skills had a direct positive effect on adherence (beta = 0.27, P < 0.001). Loss to follow-up during previous treatment had a direct negative effect, providers' work engagement had a direct positive effect, and perceived support had indirect positive effects on adherence. The model's overall R2 was 0.76. CONCLUSION: The components of the information-motivation-behavioral skills model were associated with adherence and could be used to design, monitor, and evaluate interventions targeting adherence to DR-TB treatment. PMID- 29037298 TI - Determinants of multidrug resistance among previously treated tuberculosis patients in Zimbabwe, 2014. AB - SETTING: Zimbabwe. OBJECTIVE: To investigate the determinants of multidrug resistant tuberculosis (MDR-TB) among previously treated TB patients. DESIGN: A 1:3 case-control study with bivariate analysis and logistic regression. RESULTS: Risk factors for MDR-TB were history of nursing an MDR-TB patient (adjusted OR [aOR] 4.46, 95%CI 2.02-9.88), history of hospitalisation for ?3 days (aOR 2.91, 95%CI 1.62-5.23) and history of foreign travel and stay outside Zimbabwe (aOR 2.68, 95%CI 1.46-4.91). Protective factors were previous successful treatment (aOR 0.05, 95%CI 0.02-0.11), history of supervision by a health worker/village health worker (aOR 0.34, 95%CI 0.19-0.60) and having been treated not more than once previously for TB (aOR 0.18, 95%CI 0.08-0.38). No association between human immunodeficiency virus (HIV) infection and MDR-TB (aOR 1.00, 95%CI 0.53-1.88) was observed. However, among HIV-infected patients, those with CD4 <200 cells/mm3 were more likely to develop MDR-TB (aOR 4.62, 95%CI 2.49-8.53). CONCLUSION: Individual, service-related, social and demographic factors interact to determine multidrug resistance among previously treated TB patients. Infection control, treatment adherence, reduction of side effects and drug susceptibility testing must be strengthened to reduce the MDR-TB burden in Zimbabwe. PMID- 29037300 TI - High-resolution computed tomography findings in chronic eosinophilic vs. cryptogenic organising pneumonia. AB - BACKGROUND: The similar clinical and computed tomography (CT) characteristics of cryptogenic organising pneumonia (COP) and chronic eosinophilic pneumonia (CEP) make precise diagnosis challenging. OBJECTIVES: To help differentiate between COP and CEP using high-resolution CT (HRCT). DESIGN: Clinical data and HRCT images of COP and CEP patients referred to Masih Daneshvari Hospital, Tehran, Iran, from 2007 to 2015 were reviewed. Diagnosis of COP or CEP was confirmed using open lung biopsy or a combination of transbronchial biopsy, bronchoalveolar lavage fluid (BALF) analysis, peripheral eosinophilia and a favourable response to corticosteroids. RESULTS: Ground-glass opacity, a dominant ground-glass pattern, upper-lobe pneumonia, increased thickness of bronchial walls and a mosaic pattern in the lungs were more frequent in CEP. Lower-lobe pneumonia, subpleural reticulation, a dominant consolidation pattern, nodules and masses, non-septal linear opacities, bronchial dilation and a reverse halo sign were more frequent in COP. History of asthma, wheezing and peripheral eosinophilia was significantly more common in CEP than in COP. CONCLUSION: Distinguishing between CEP and COP based on HRCT alone is not always possible. However, in many cases, especially if the correct diagnosis cannot be established by other means, certain HRCT features can be very helpful. PMID- 29037299 TI - Time to treatment for rifampicin-resistant tuberculosis: systematic review and meta-analysis. AB - BACKGROUND: To reduce transmission and improve patient outcomes, rapid diagnosis and treatment of rifampicin-resistant tuberculosis (RR-TB) is required. OBJECTIVE: To conduct a systematic review and meta-analysis assessing time to treatment for RR-TB and variability using diagnostic testing methods and treatment delivery approach. DESIGN: Studies from 2000 to 2015 reporting time to second-line treatment initiation were selected from PubMed and published conference abstracts. RESULTS: From 53 studies, 83 cohorts (13 034 patients) were included. Overall weighted mean time to treatment from specimen collection was 81 days (95%CI 70-91), and was shorter with ambulatory (57 days, 95%CI 40-74) than hospital-based treatment (86 days, 95%CI 71-102). Time to treatment was shorter with genotypic susceptibility testing (38 days, 95%CI 27-49) than phenotypic testing (108 days, 95%CI 98-117). The mean percentage of diagnosed patients initiating treatment was 76% (95%CI 70-83, range 25-100). CONCLUSION: Time to second-line anti-tuberculosis treatment initiation is extremely variable across studies, and often unnecessarily long. Reduced delays are associated with genotypic testing and ambulatory treatment settings. Routine monitoring of the proportion of diagnosed patients initiating treatment and time to treatment are necessary to identify areas for intervention. PMID- 29037301 TI - Asthma symptoms among Chinese children: the role of ventilation and PM10 exposure at school and home. AB - SETTING: Respiratory symptoms in relation to environment in Taiyuan, China. OBJECTIVE: To study associations between school/home exposure and prevalence of respiratory symptoms and self-reported respiratory infections (RIs) among students. DESIGN: A total of 2134 pupils from 10 schools answered a questionnaire; air pollution at school was measured. RESULTS: The prevalence of current wheeze, daytime attacks of breathlessness, nocturnal cough, nocturnal respiratory symptoms and RI was respectively 4.4%, 18.7%, 11.6%, 3.6% and 32.3%. Environmental tobacco smoke (ETS) at home was associated with daytime attacks of breathlessness (OR 1.41), nocturnal cough (OR 1.41) and RI (OR 1.26). Redecoration or indoor painting at home was associated with wheeze (OR 2.02), daytime attacks of breathlessness (OR 1.57) and nocturnal symptoms (OR 1.83). Dampness or mould at home was associated with daytime attacks of breathlessness (OR 1.68), nocturnal cough (OR 1.68) and RI (OR 1.69). Particulate matter of diameter ? 10 microns (PM10) in the classroom was associated with nocturnal cough (OR 1.20/10 MUg/m3). PM10 outside school was associated with daytime attacks of breathlessness (OR 1.07/10 MUg/m3) and nocturnal cough (OR 1.13/10 MUg/m3). Indoor carbon dioxide, a marker of poor ventilation (OR 1.52/1000 parts per million), and relative humidity (RH) (OR 1.33/10%) were associated with nocturnal cough. CONCLUSION: Dampness, redecoration and ETS at home, as well as poor ventilation flow, and high RH and PM10 concentration at school may influence respiratory health. PMID- 29037302 TI - FeNO levels increase with degree of sensitisation in apprentices at risk of occupational asthma. AB - BACKGROUND: Atopy has emerged as a major determinant of airway inflammation. OBJECTIVE: To examine whether early markers of occupational asthma increase with degree of sensitisation. METHOD: This study was a prospective follow-up study of apprentices in baking, pastry-cooking and hairdressing during their 2-year apprenticeship. Four visits were conducted to administer a standardised questionnaire, a methacholine challenge test to assess bronchial hyperresponsiveness (BHR) and to measure fractional exhaled nitric oxide (FeNO). Degree of sensitisation was estimated based on the number of positive skin prick tests (SPTs) for 12 common allergens. Mixed-effect models were applied to examine the association between the degree of sensitisation and FeNO levels, BHR and eosinophilic status (more than 3% of cells in nasal lavage fluid). RESULTS: Of the 441 apprentices who agreed to take part in the study, 417 had at least one SPT session providing usable results. Degree of sensitization was related to BHR and FeNO levels. Compared to non-sensitised subjects, FeNO levels were 83% higher (P < 0.01) in highly sensitised subjects and 30% higher (P < 0.01) in weakly sensitised subjects. However, the degree of sensitisation was not predictive of the evolution of these markers. CONCLUSION: Degree of sensitisation is related to early markers of airway inflammation. PMID- 29037305 TI - Putting urban Aboriginal and Torres Strait Islander food insecurity on the agenda. AB - Food insecurity adversely affects diet quality, physical, mental and social wellbeing and the capacity to act on health advice recommended by primary healthcare providers. In this article, an overview of the neglected issue of food insecurity in urban Aboriginal and Torres Strait Islander communities is provided. Policy and action on food security for urban Aboriginal and Torres Strait Islander people is reviewed, and it is argued that for primary health care to better address food insecurity, an evidence base is needed to understand the experiences of individuals and households and how to work effectively to support food insecure clients. PMID- 29037303 TI - Prevalence and impact of asthma among school-aged students in Lima, Peru. AB - SETTING AND OBJECTIVE: The International Study of Asthma and Allergies in Childhood (ISAAC) reported asthma prevalence in Peru to be among the highest in the world. We assessed the prevalence and morbidity of self-reported asthma in an underserved, peri-urban area of Lima, Peru, with limited medical access. DESIGN: The study was conducted in the outskirts of Lima from March to May 2011. Five hundred children aged 6-18 years were selected through cluster sampling. Parents completed a modified version of the ISAAC questionnaire. Children underwent spirometry testing. Those with a forced expiratory volume in one second (FEV1% predicted) ?80% were tested for reversibility using salbutamol. RESULTS: Of the 500 children selected, 71% participated. The prevalence of asthma was 16.7%. Asthma symptoms were associated with self-reported asthma (P < 0.001); 52.5% of children with asthma had ever used an inhaler (P < 0.001), and 27.1% had never been to the doctor for respiratory problems (P < 0.001). CONCLUSION: We found a high prevalence of self-reported asthma and high morbidity related to asthma symptoms in the previous 12 months among the study cohort. Symptoms were poorly controlled due to limited availability of medication and access to medical services. PMID- 29037306 TI - Making Social Media Work for Your Practice. PMID- 29037307 TI - Effect of multiparity on bone mineral density, evaluated with bone turnover markers. AB - OBJECTIVE: Our aim was to investigate the effect of parity on osteoporosis by evaluating bone mineral density, markers of bone turn-over and other factors that are effective in osteoporosis in multiparous (five deliveries or more) and nulliparous women in the post-menopausal period. METHODS: A total of 91 multiparous (five deliveries or more) and 31 nulliparous postmenopausal women were included in this study. All patients were interviewed on sociodemographic characteristics, gynecologic history, personal habits, levels of physical activity, and life-long intake of calcium. Bone mineral density was measured at lumbar (L1-4) and femoral neck regions with Dexa. RESULTS: The mean age of multiparous women was 58.79+/-7.85 years, and the mean age of nulliparous women was 55.84+/-7.51. The femoral BMD was 0.94+/-0.16 and lumbar BMD 1.01+/-0.16 in multiparous women, femoral BMD was 0.99+/-0.16 and lumbar BMD 1.07+/-0.14 in nulliparous women. There were no statistical differences between the femoral and lumbar T scores and BMD values of the two groups. Lumbar T scores and lumbar BMD showed a decrease with increasing total duration of breast-feeding in multiparous women. The independent risk factors for osteoporosis in the regression analysis of multiparous women were found to be the duration of menopause and body weight of 65kg and less. CONCLUSION: There is no difference between the bone mineral densities of multiparous and nulliparous women. Females with lower body-weight and longer duration of menopause should be followed-up more carefully for development of osteoporosis. PMID- 29037308 TI - Topographic MRI evaluation of the sacroiliac joints in patients with axial spondyloarthritis. AB - OBJECTIVE: To evaluate the imaging features of spondyloarthritis in magnetic resonance imaging (MRI) of the sacroiliac (SI) joint and topography (in thirds) and affected margin, considering that this issue is rarely addressed in the literature. METHODS: A cross-sectional study evaluating MRI (1.5T) of SI in 16 patients with axial spondyloarthritis, for the presence of acute (subchondral bone edema, enthesitis, synovitis and capsulitis) and chronic (erosions, subchondral bone sclerosis, bony bridges, and fatty infiltration) changes, performed by two blinded radiologists. MRI findings were correlated with clinical data, including age, duration of disease, medications, HLA-B27, BASDAI, ASDAS-ESR and ASDAS-CRP, BASMI, BASFI, and mSASSS. RESULTS: Bone edema pattern and erosions were predominant in the upper third of SI (p=0.050 and p=0.0014, respectively). There was a correlation between disease duration and structural changes by affected third (p=0.028-0.037), as well as between the presence of bone bridges with BASMI (p=0.028) and mSASSS (p=0.014). Patients with osteitis in the lower third showed higher values for ASDAS (ESR: p=0.011 and PCR: p=0.017). CONCLUSION: Chronic inflammatory changes and the pattern of bone edema predominated in the upper third of SI, but a simultaneous involvement of middle or lower thirds of the joint was also noted. The location of involvement in the upper third of SI is insufficient to differentiate between degeneration and inflammation. PMID- 29037309 TI - Correlation between cellular expression of complement regulatory proteins with depletion and repopulation of B-lymphocytes in peripheral blood of patients with rheumatoid arthritis treated with rituximab. AB - OBJECTIVES: To correlate the basal expression of complement regulatory proteins (CRPs) CD55, CD59, CD35, and CD46 in B-lymphocytes from the peripheral blood of a cohort of 10 patients with rheumatoid arthritis (RA) initiating treatment with rituximab (RTX) with depletion and time repopulation of such cells. METHODS: Ten patients with RA received two infusions of 1g of RTX with an interval of 14 days. Immunophenotypic analysis for the detection of CD55, CD59, CD35, and CD46 on B lymphocytes was carried out immediately before the first infusion. The population of B-lymphocytes was analyzed by means of basal CD19 expression and after 1, 2, and 6 months after the infusion of RTX, and then quarterly until clinical relapse. Depletion of B-lymphocytes in peripheral blood was defined as a CD19 expression <0.005*109/L. RESULTS: Ten women with a median of 49 years and a baseline DAS28=5.6 were evaluated; 9 were seropositive for rheumatoid factor. Five patients showed a repopulation of B-lymphocytes after 2 months, and the other five after 6 months. There was a correlation between the basal expression of CD46 and the time of repopulation (correlation coefficient=-0.733, p=0.0016). A similar trend was observed with CD35, but without statistical significance (correction coefficient=-0.522, p=0.12). CONCLUSION: The increased CD46 expression was predictive of a faster repopulation of B-lymphocytes in patients treated with RTX. Studies involving a larger number of patients will be needed to confirm the utility of basal expression of CRPs as a predictor of clinical response. PMID- 29037310 TI - Latent tuberculosis infection screening in juvenile idiopathic arthritis patients preceding anti-TNF therapy in a tuberculosis high-risk country. AB - OBJECTIVES: To evaluate, in an endemic country, the long-term efficacy of latent tuberculosis infection (LTBI) screening and primary prophylaxis in patients with JIA receiving TNF blockers. METHODS: This was a retrospective cohort that included JIA patients eligible to anti-TNF therapy. Patients were screened for LTBI prior to anti-TNF using tuberculin skin test (TST), chest X-ray and history of exposure to TB. Subjects were regularly followed at 2-month intervals. RESULTS: Sixty-nine JIA patients with current age of 17.4+/-5.8 years, mean disease duration of 5.0+/-4.9 years were included. Forty-seven patients received a single anti-TNF, while 22 patients switched to another anti-TNF once or twice: 57 were treated with etanercepte, 33 patients with adalimumab and 3 infliximab. LTBI screening was positive in three patients: one had TST-positive and history of TB exposure and two had solely TST-positive. No active TB was diagnosed during the study period (median of follow-up was 3.8 years). CONCLUSION: Long-term evaluation revealed that LTBI screening and primary prophylaxis before anti-TNF treatment was effective in a high-risk country and TST was the most sensitive parameter to identify these patients. PMID- 29037311 TI - Therapeutic plasma exchange in rheumatic diseases: a university hospital experience. AB - INTRODUCTION: Each day, evidence accumulates related to the use of therapeutic plasma exchange (TPE) in patients with rheumatic diseases. San Ignacio University Hospital has recorded all of the TPE sessions performed by the institution's apheresis group. OBJECTIVE: To describe the TPE experience of patients with rheumatologic diseases in a hospital setting. METHODS: Descriptive, observational, retrospective analysis. This study included analyses of the TPE sessions that were performed in patients with rheumatic diseases from November 2009 to November 2013. RESULTS: The apheresis group performed 136 sessions in 27 patients. The mean patient age was 43 years (SD 18.5), and 59.3% of the patients were female. Regarding the diagnosis, the most frequents ones where: ANCA associated vasculitis followed by systemic lupus erythematosus and catastrophic antiphospholipid syndrome. The average number of sessions per patient was 5 (SD 1.8), and the average plasma exchange per patient was 1.3 plasma volume replacement units. The most used replacement solution was frozen fresh plasma (FFP; 63.2% of the sessions). Of all the sessions, 4.4% presented complications, and the majority of the complications were related to vascular access. Fifteen patients required renal replacement therapy (RRT) secondary to the same cause that created the need for TPE, 3 patients required RRT due to causes other than the TPE diagnostic intervention and 1 patient had undergone chronic dialysis. CONCLUSIONS: TPE is a therapeutic alternative that is needed for the management of patients with rheumatic diseases with renal involvement and those who are refractory to conventional management. Our clinical results were in agreement with the global literature. PMID- 29037312 TI - Rheumatoid arthritis seems to have DMARD treatment decision influenced by fibromyalgia. AB - OBJECTIVE: To compare DMARD use in patients with and without FM over time, including overtreatment and undertreatment rates in both groups. METHODS: A prospective cohort study with patients attending an RA outpatient clinic was conducted. Participants were consecutively recruited between March 2006 and June 2007 and were followed through December 2013. Data on DMARD use (prevalences, doses and escalation rates), DAS28, HAQ and radiographic progression were compared among RA patients with FM and without FM. Mistreatment clinical scenarios were allegedly identified and compared between groups. RESULTS: 256 RA patients (32 with FM) were followed for 6.2+/-2.0 (mean+/-SD) years comprising 2986 visits. At baseline, RA duration was 11.1+/-7.4 years. DAS28 and HAQ were greater in RA with FM group, and were closer to RA without FM group towards the end. RA patients with FM used higher doses of tricyclic antidepressants, leflunomide and prednisone, and lower doses of methotrexate. When compared to RA patients without FM, participants with RA and FM used more often tricyclic antidepressants, leflunomide, prednisone, continuous analgesics and less often methotrexate. Groups presented similar 7-year biologic-free survival, and radiographic progression-free survival in Cox regression. RA patients with FM had greater proportions of visits in mistreatment scenarios when compared to RA patients without FM (28.4 vs. 19.8%, p<0.001). CONCLUSIONS: RA patients with FM used more leflunomide and prednisone, and RA mistreatment was more frequent in FM patients. Certainly, RA patients with FM will benefit from a personalized T2T strategy, including ultrasound (when suitable) and proper FM treatment. PMID- 29037313 TI - Prevalence of ischemic heart disease and associated factors in patients with rheumatoid arthritis in Southern Brazil. AB - OBJECTIVE: To estimate the prevalence of ischemic heart disease and associated factors in patients with rheumatoid arthritis. METHODS: A cross-sectional study using the American College of Rheumatology diagnostic criteria in order to select patients seen at primary or secondary health care units in Blumenau, Santa Catarina, Southern Brazil, in 2014. The presence of ischemic heart disease was defined as an acute myocardial infarction with percutaneous coronary intervention or coronary artery bypass graft surgery that has occurred after diagnosis. Fischer's exact test, Wald's linear trend test, and multivariate logistic regression analysis were used to test the associations. RESULTS: Among 296 patients (83.1% female) with a mean age of 56.6 years and a mean rheumatoid arthritis duration of 11.3 years, 13 reported having acute myocardial infarction requiring a percutaneous or surgical reperfusion procedure, a prevalence of 4.4% (95% CI 2.0-6.7). Diabetes Mellitus (odds ratio [OR] 4.9 [95% CI 1.6-13.8]) and disease duration >10 years (OR 8.2 [95% CI 1.8-39.7]) were the only factors associated with an ischemic disease that remained in the final model, after the multivariate analysis. CONCLUSION: The prevalence of acute myocardial infarction was similar to that observed in other studies. Among the traditional risk factors, Diabetes Mellitus, and among the factors related to rheumatoid arthritis, disease duration, were the variables associated with comorbidity. PMID- 29037314 TI - Pulmonary magnetic resonance imaging is similar to chest tomography in detecting inflammation in patients with systemic sclerosis. AB - Interstitial lung disease (ILD) and pulmonary arterial hypertension (PAH) are prevalent complications of systemic sclerosis (SSc) and are currently the leading causes of death related to the disease. The accurate recognition of these conditions is therefore of utmost importance for patient management. A study was carried out with 24 SSc patients being followed at the Rheumatology Department of the Hospital de Clinicas of Universidade Federal do Parana (UFPR) and 14 healthy volunteers, with the objective of evaluating the usefulness of lung magnetic resonance imaging (MRI) when assessing ILD in SS patients. The results obtained with lung MRI were compared to those obtained by computed tomography (CT) of the chest, currently considered the examination of choice when investigating ILD in SS patients. The assessed population was predominantly composed of women with a mean age of 50 years, limited cutaneous SS, and a disease duration of approximately 7 years. In most cases, there was agreement between the findings on chest CT and lung MRI. Considering it is a radiation-free examination and capable of accurately identifying areas of lung tissue inflammatory involvement, lung MRI showed to be a useful examination, and further studies are needed to assess whether there is an advantage in using lung MRI instead of chest CT when assessing ILD activity in SS patients. PMID- 29037315 TI - Prevalence of fibromyalgia in patients treated at the bariatric surgery outpatient clinic of Hospital de Clinicas do Parana - Curitiba. AB - INTRODUCTION: Fibromyalgia (FM) is a chronic pain syndrome characterized by generalized pain. It is known that obese patients have more skeletal muscle pain and physical dysfunction than normal weight patients. Therefore, it is important that the early diagnosis of FM be attained in obese patients. OBJECTIVE: To determine the prevalence of FM in a group of obese patients with indication of bariatric surgery. MATERIALS AND METHODS: The patients were recruited from the Bariatric Surgery outpatient clinic of Hospital de Clinicas of UFPR (HC-UFPR) before being submitted to surgery. Patient assessment consisted in verifying the presence or absence of FM using the 1990 and 2011 ACR criteria, as well as the presence of comorbidities. RESULTS: 98 patients were evaluated, of which 84 were females. The mean age was 42.07 years and the BMI was 45.39. The prevalence of FM was 34% (n=29) according to the 1990 criteria and 45% (n=38) according to the 2011 criteria. There was no difference in age, BMI, Epworth score and prevalence of other diseases among patients who met or not the 1990 criteria. Only depression was more common in patients with FM. (24.14% vs. 5.45%). The same findings were seen in patients that met the 2011 criteria. CONCLUSIONS: The prevalence of FM in patients with morbid obesity is extremely high. However, BMI does not differ in patients with or without FM. The presence of depression may be a risk factor for the development of FM in these patients. PMID- 29037316 TI - Intestinal parasites infection: protective effect in rheumatoid arthritis? AB - Rheumatoid arthritis (RA) is a systemic autoimmune inflammatory disease, with a progressive course, characterized by chronic synovitis that may evolve with deformities and functional disability, and whose early treatment minimizes joint damage. Its etiopathogenesis is not fully elucidated but comprises immunologic responses mediated by T helper cells (Th1). An apparent minor severity of RA in patients from regions with lower income could be associated with a higher prevalence of gut parasites, especially helminths. Strictly, a shift in the immune response toward the predominance of T helper cells (Th2), due to the chronic exposure to helminths, could modulate negatively the inflammation in RA patients, resulting in lower severity/joint injury. The interaction between the immunological responses of parasitic helminths in rheumatoid arthritis patients is the purpose of this paper. PMID- 29037318 TI - Coexistence of hypertrophic osteoarthropathy and myelofibrosis. PMID- 29037317 TI - Effect of vitamin D supplementation on patients with systemic lupus erythematosus: a systematic review. AB - The objective of this systematic review was to analyze clinical trials carried out for the investigation of the effect of vitamin D supplementation on systemic lupus erythematosus. The research was performed from August to September 2016, without limits regarding year of publication, restriction of gender, age, and ethnicity. For the guiding question, the PICO strategy was employed. To evaluate the quality of the publications the PRISMA protocol and Jadad scale were used. The risk of bias analysis of the clinical trials was performed using the Cochrane collaboration tool. After the process of article selection and removal of duplicates, four articles were identified as eligible. The results of three studies showed a positive effect of supplementation on disease activity reduction and significant improvement in levels of inflammatory markers, fatigue, and endothelial function. Only one study showed no improvement in disease activity after supplementation. Moreover, all studies showed an increase in serum vitamin D levels. The data from this review provide evidence on the benefits of vitamin D supplementation in patients with lupus and vitamin D insufficiency/deficiency. However, it is still necessary to elucidate whether vitamin D acts in the protection against this metabolic disorder, as well as the standardization of the type, dose and time of vitamin D supplementation. PMID- 29037319 TI - Devic's disease in an adolescent girl with juvenile dermatomyositis. PMID- 29037320 TI - Disseminated histoplamosis in adolescent mimicking granulomatosis with polyangiitis. PMID- 29037321 TI - Whipple's disease manifested as difficult-to-diagnose polyarthralgia: a case report and literature review. PMID- 29037322 TI - Improvement of nailfold capillary microangiopathy after immunosuppressant therapy in a child with clinically amyopathic juvenile dermatomyositis. PMID- 29037323 TI - Rheumatoid arthritis in elderly and young patients. PMID- 29037324 TI - Back pain and behavioral habits of high school students: a comparative study of two Brazil's regions. PMID- 29037325 TI - Erratum to "Effects of the use of growth hormone in children, adolescents with juvenile idiopathic arthritis: a systematic review" (Rev Bras Reumatol. 2017;57(2):100-106). PMID- 29037326 TI - beta-hydroxy-beta-methylbutyrate free acid supplementation may improve recovery and muscle adaptations after resistance training: a systematic review. AB - beta-Hydroxy-beta-methylbutyrate free acid (HMB-FA) has been suggested to accelerate the regenerative capacity of skeletal muscle after high-intensity exercise and attenuate markers of skeletal muscle damage. Herein a systematic review on the use of HMB-FA supplementation as an ergogenic aid to improve measures of muscle recovery, performance, and hypertrophy after resistance training was conducted. This review was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. We included randomized, double blinded, placebo-controlled trials investigating the effects of HMB-FA supplementation in conjunction with resistance exercise in humans. The search was conducted using Medline and Google Scholar databases for the terms beta-hydroxy beta-methylbutyrate, HMB free acid, exercise, resistance exercise, strength training, and HMB supplementation. Only research articles published from 1996 to 2016 in English language were considered for the analysis. Nine studies met the criteria for inclusion in the analyses. Most studies included resistance-trained men, and the primary intervention strategy involved administration of 3g of HMB FA per day. In conjunction with resistance training, HMB-FA supplementation may attenuate markers of muscle damage, augment acute immune and endocrine responses, and enhance training-induced muscle mass and strength. HMB-FA supplementation may also improve markers of aerobic fitness when combined with high-intensity interval training. Nevertheless, more studies are needed to determine the overall efficacy of HMB-FA supplementation as an ergogenic aid. PMID- 29037327 TI - Low dietary intake of n-3 fatty acids, niacin, folate, and vitamin C in Korean patients with schizophrenia and the development of dietary guidelines for schizophrenia. AB - Inappropriate dietary intake and poor nutritional status are reported to be associated with metabolic syndrome and psychopathology in patients with schizophrenia. We hypothesized that inappropriate dietary habits and insufficient dietary intake of specific nutrients are associated with schizophrenia. To test the hypothesis, we assessed the dietary habits and nutritional intake of patients with schizophrenia and then developed suitable dietary guidelines. In total, 140 subjects (73 controls and 67 patients with schizophrenia from community mental health centers) were included, and dietary intakes were analyzed using a semi quantitative food frequency questionnaire. As a result, the proportion of overweight or obese patients was significantly higher in schizophrenia subjects (64.2%) compared with control subjects (39.7%) (P=.004). The male schizophrenia patients had significantly lower dietary intakes of protein, polyunsaturated fatty acids (PUFAs), vitamin K, niacin, folate, and vitamin C than the male control subjects. In all multiple logistic regression models, subjects with the "low" dietary intake of protein, n-3 PUFAs, niacin, folate, and vitamin C had a significantly higher odds ratios for schizophrenia compared with those with the "high" dietary intake category of each nutrient. Therefore, maintenance of a healthy body weight and sufficient dietary intake of protein, PUFAs, niacin, folate, and vitamin C are recommended for Korean patients with schizophrenia. PMID- 29037328 TI - Xyloglucan intake attenuates myocardial injury by inhibiting apoptosis and improving energy metabolism in a rat model of myocardial infarction. AB - The development of coronary heart disease can be divided into preocclusion and postocclusion steps. We previously showed that cell wall polysaccharides consisting of a high content of arabinose and/or xylose, such as apple pectin, protected against myocardial injury by inhibiting postocclusion steps. We hypothesized that xyloglucan, another apple cell wall polysaccharide that consists of a high content of xylose, might also show myocardial protection. To test the hypothesis, rats were supplemented with either tamarind xyloglucan (TXG) (1, 10, and 100 mg/kg per day) or cotton cellulose (CCL) (100mg/kg per day) for 3 days. Then, rats underwent 30 minutes of ischemia followed by 3 hours of reperfusion. Supplementation with TXG at a dosage greater than 10mg/kg per day significantly reduced the infarct size (IS), whereas supplementation with CCL at 100mg/kg per day did not reduce IS. TXG supplementation up-regulated the expression of myoglobin and fatty acid-binding protein, both of which are known to be involved in apoptosis and ATP generation. Indeed, TXG supplementation inhibited apoptosis through decrease in p38 and JNK phosphorylation, increase in Bcl-2/Bax ratio, inhibition in the conversion of procaspase-3 to cleaved caspase 3, and decrease in the generation of DNA nicks. From these results, we demonstrated that xyloglucan in apple can protect against myocardial injury by inhibiting apoptosis and improving energy metabolism. Therefore, apple xyloglucan and pectin contribute to the known beneficial effects of apple in reducing the risk of coronary heart disease by blocking postocclusion steps through apoptosis inhibition. In addition, this study demonstrates the feasibility of developing TXG as a cardioprotectant. PMID- 29037330 TI - Waist circumference shows the highest predictive value for metabolic syndrome, and waist-to-hip ratio for its components, in Spanish adolescents. AB - Both waist circumference (WC) and waist-to-hip ratio (WHR) have been proposed as predictors of metabolic syndrome (MetS) in adolescents, but no consensus has been reached to date. This study hypothesizes that WC provides a greater predictive value for MetS in Spanish adolescents than WHR. A cross-sectional study was performed on 1001 adolescents (13.2 +/- 1.2 years) randomly recruited from schools in southeast Spain. Anthropometric measures were correlated with the components of MetS (triglycerides, glucose, blood pressure, and high-density lipoprotein cholesterol) as well as inflammation markers (interleukin-6 and tumor necrosis factor-alpha , C-reactive protein, and ceruloplasmin). Receiver-operator curves were created to determine the predictive value of these variables for MetS. Boys had higher values of all anthropometric parameters compared with girls, but the prevalence of MetS was significantly higher in girls. WHR was the only parameter that correlated significantly with all biochemical and inflammatory variables in boys. In girls, WHR, body mass index, waist-to-height ratio, WC, and body fat percentage correlated only with plasma insulin levels, systolic and diastolic pressures, and ceruloplasmin. In both groups, all anthropometric measures were able to predict MetS (area under the curve > 0.94). In particular, WC was able to predict MetS with area under the curve = 1.00. However, WHR was able to predict a higher number of components of MetS. WHR was the anthropometric index that showed the highest predictive value for MetS components, whereas WC was the one that best predicted the MetS among the population of adolescents studied. These findings justify the need to incorporate WHR and WC determinations into daily clinical practice to predict the MetS. PMID- 29037329 TI - Smokers report lower intake of key nutrients than nonsmokers, yet both fall short of meeting recommended intakes. AB - Smoking is a major risk factor in the development of preventable disease which may be due to a poorer diet and the reduced nutrient intake of smokers. Our objective was to compare and evaluate the reported intake of current smokers with that of nonsmokers among participants of a study evaluating stress and smoking. We hypothesized (1) that overall energy and nutrient intake would be reduced in smokers compared with nonsmokers and (2) that smokers would have increased noncompliance with Dietary Reference Intakes (DRIs). Men and women (smokers n=138, nonsmokers n=46) completed a 3-day diet record at baseline. Mean energy and nutrient intakes were stratified by smoking status and compared with DRI levels. The mean body mass index was 28.3+/-0.5kg/m2 for smokers and 27.2+/ 1.0kg/m2 for nonsmokers. Compared with nonsmokers, the smokers reported lower intakes of energy, total polyunsaturated fatty acids, linolenic acid, docosahexaenoic acid, total sugars, calcium, iron, magnesium, phosphorus, potassium, vitamin C, riboflavin, niacin, pantothenic acid, vitamin B6, folate, vitamin A, and vitamin E. Smokers reported reduced compliance with the DRIs for iron, phosphorus, vitamin C, riboflavin, and folate compared with nonsmokers. Unlike other evaluations of smokers vs nonsmokers, we observed no difference in body weight between groups. Smokers and nonsmokers alike reported dietary intakes lower than the DRIs for many nutrients. However, the reported nutrient intake of the smokers was substantially lower than nonsmokers for key nutrients, and they were more likely to not comply with the DRIs for essential nutrients, placing them at increased risk of chronic disease. PMID- 29037331 TI - Preload of slowly digestible carbohydrate microspheres decreases gastric emptying rate of subsequent meal in humans. AB - Gastric emptying rate influences how fast the nutrients of a meal are delivered to the body, and when slow, it moderates glycemic response and may impact satiety. Carbohydrates are one of the macronutrients that trigger the ileal brake, and we hypothesized that slowly digestible carbohydrate (SDC) administered in a premeal load would delay gastric emptying. A crossover design study was conducted with 10 healthy adults using fabricated SDC-microspheres (cooked) that were given 20 minutes before a non-nutritive viscous paste meal. There were 4 treatment arms, each separated by a 1-week washout period, consisting of (1) the paste alone, (2) a rapidly digesting maltodextrin (Polycose) preload followed by the paste 20 minutes later, (3) an SDC-microsphere preload followed by the paste, and (4) a comparably slower SDC-microsphere preload followed by the paste. A 13C labeled octanoic acid breath test method was used to measure gastric emptying, with the label incorporated into the non-nutritive paste. The microspheres were less than 1 mm in diameter (a size that does not require breakdown in the stomach before emptying) and, after cooking, were of the same density value. Compared with the paste alone, both of the SDC-microsphere preloads (slow and comparably slower digesting) decreased gastric emptying rate of the paste, with the latter having the most effect (half-emptying times of 1.7, 2.3, and 2.8 hours, respectively [each different at P<.05]). In conclusion, SDCs decreased gastric emptying rate, and this was suggested to be due to a triggering of the ileal brake. PMID- 29037332 TI - Dihydrosterculic acid from cottonseed oil suppresses desaturase activity and improves liver metabolomic profiles of high-fat-fed mice. AB - Polyunsaturated fatty acid (PUFA)-rich diets are thought to provide beneficial effects toward metabolic health in part through their bioactive properties. We hypothesized that increasing PUFA intake in mice would increase peroxisome proliferator activated receptor delta (PPARdelta) expression and activity, and we sought to examine the effect of different PUFA-enriched oils on muscle PPARdelta expression. One of the oils we tested was cottonseed oil (CSO) which is primarily linoleic acid (53%) and palmitic acid (24%). Mice fed a CSO-enriched diet (50% energy from fat) displayed no change in muscle PPARdelta expression; however, in the liver, it was consistently elevated along with its transcriptional coactivator Pgc-1. Male mice were fed chow or CSO-, saturated fat (SFA)-, or linoleic acid (18:2)-enriched diets that were matched for macronutrient content for 4 weeks. There were no differences in food intake, body weight, fasting glucose, glucose tolerance, or energy expenditure between chow- and CSO-fed mice, whereas SFA-fed mice had increased fat mass and 18:2-fed mice were less glucose tolerant. Metabolomic analyses revealed that the livers of CSO-fed mice closely matched those of chow-fed but significantly differed from SFA- and 18:2-enriched groups. Fatty acid composition of the diets and livers revealed an impairment in desaturase activity and the presence of dihydrosterculic acid (DHSA) in the CSO fed mice. The effect of DHSA on PPARdelta and stearoyl-CoA desaturase-1 expression mimicked that of the CSO-fed mice. Taken together, these data suggest that DHSA from CSO may be an effective means to increase PPARdelta expression with concomitant suppression of liver stearoyl-CoA desaturase-1 activity. PMID- 29037333 TI - [Towards a validation of the hybrid neuropsychiatric territory]. PMID- 29037334 TI - An International Curriculum for Neuropsychiatry and Behavioural Neurology. AB - With major advances in neuroscience in the last three decades, there is an emphasis on understanding disturbances in thought, behaviour and emotion in terms of their neuroscientific underpinnings. While psychiatry and neurology, both of which deal with brain diseases, have a historical standing as distinct disciplines, there has been an increasing need to have a combined neuropsychiatric approach to deal with many conditions and disorders. Additionally, there is a body of disorders and conditions that warrants the skills sets and knowledge bases of both disciplines. This is the territory covered by the subspecialty of Neuropsychiatry from a 'mental' health perspective and Behavioural Neurology from a 'brain' health perspective. This paper elaborates the neuropsychiatric approach to dealing with brain diseases, but also argues for the delineation of a neuropsychiatric territory. In the process, it describes a curriculum for the training of a neuropsychiatrist or a behavioural neurologist who is competent in providing a unified approach to the diagnosis and management of this set of conditions and disorders. The paper describes in some detail the objectives of training in neuropsychiatry and the key competencies that should be achieved in such higher training after a foundational training in psychiatry and neurology. While aiming for an internationally relevant training program, the paper acknowledges the local and regional differences in training expertise and requirements. It provides a common framework of training for both Neuropsychiatry and Behavioural Neurology, while accepting the differences in skills and emphasis that basic training in psychiatry or neurology will bring to the subspecialty training. The future of Neuropsychiatry (or Behavioural Neurology) as a discipline will be influenced by the successful adoption of such a unified training curriculum. PMID- 29037335 TI - [Catatonia and Delirium: Syndromes that may Converge in the Neuropsychiatric Patient]. AB - INTRODUCTION: Catatonia and delirium are two different and independent syndromes. Catatonia is a psychomotor syndrome associated with a variety of diseases of different medical causes and is characterised by lack of activity, induction of passive postures against gravity, opposition or absence of response to external stimuli, waxy flexibility, stereotypies, mannerisms and echophenomena. Delirium is characterised by consciousness and cognitive alterations, mainly attention and orientation and usually of acute onset, which tend to fluctuate during the day and with evidence that the alteration is a direct physiological consequence of a disease, intoxication or substance withdrawal. Despite the differences and the fact that the classifications exclude the possibility that these syndromes may manifest together, several case reports and studies in groups of patients have postulated that the two conditions can occur together. MATERIAL AND METHODS: In this study we identified 16 hospitalised patients who experienced both syndromes at the same time as confirmed by the Delirium Rating Scale-Revised (DRS-98) and the Bush-Francis Catatonia Rating Scale (BFCRS). RESULTS: Patient outcome was followed during hospitalisation and the patients' clinical condition upon discharge. These patients had mostly neurological diagnoses, long hospital stays, required treatment with antipsychotics and benzodiazepines and had frequent complications. CONCLUSIONS: Catatonia and delirium are syndromes that can present at the same time, resulting in worse patient outcome and an increased risk of complications. PMID- 29037336 TI - Neuropsychiatry: Towards a Philosophy of Praxis. AB - Neuropsychiatry is a specialized clinical, academic and scientific discipline with its field located in the borderland territory between neurology and psychiatry. In this article, we approach the theoretical definition of neuropsychiatry, and in order to address the practical aspects of the discipline, we describe the profile of a neuropsychiatric liaison service in the setting of a large hospital for neurological diseases in a middle-income country. An audit of consecutive in-patients requiring neuropsychiatric assessment at the National Institute of Neurology and Neurosurgery of Mexico is reported, comprising a total of 1212 patients. The main neurological diagnoses were brain infections (21%), brain neoplasms (17%), cerebrovascular disease (14%), epilepsy (8%), white matter diseases (5%), peripheral neuropathies (5%), extrapyramidal diseases (4%), ataxia (2%), and traumatic brain injury and related phenomena (1.8%). The most frequent neuropsychiatric diagnoses were delirium (36%), depressive disorders (16.4%), dementia (14%), anxiety disorders (8%), frontal syndromes (5%), adjustment disorders (4%), psychosis (3%), somatoform disorders (3%), and catatonia (3%). The borderland between neurology and psychiatry is a large territory that requires the knowledge and clinical skills of both disciplines, but also the unique expertise acquired in a clinical and academic neuropsychiatry program. PMID- 29037337 TI - [Social Cognition and its Contribution to the Rehabilitation of Behavioural Disorders in Traumatic Brain Injury]. AB - Social behaviour disorders in traumatic brain injury are caused by the dysfunction of cognitive processes involved in social and interpersonal interaction. The concept of social cognition was introduced by authors studying schizophrenia, autism or mental retardation. The boundaries and the content of the concept have not yet been definitively defined, but theory of mind, empathy and emotional processing are included in all the models proposed. The strategies proposed to improve social behaviour focus on the restoration of cognitive processes such as working memory, emotional recognition and processing, and empathy, as well as social skills. To date, there is very little evidence on the efficacy of the aforementioned social cognition strategies. PMID- 29037338 TI - [The Many Faces of Orbitofrontal Syndrome]. AB - Orbitofrontal syndrome is a neuropsychiatric syndrome composed of cognitive, affective and behavioural symptoms, disrupting some of the traits that define us as a species, like cognitive flexibility and affective regulation. In order to effectively treat the condition, the clinician needs to be familiar with both the functional neuroanatomy and the neuropsychiatric semiology of the syndrome. A review of the literature is presented, emphasising the broad spectrum of clinical manifestations of the syndrome, together with three clinical vignettes showing the many faces of the syndrome. Several factors influencing the heterogeneity of clinical presentation are discussed. Taking a hierarchical model of neural networks, two core concepts, loss of interoceptive/exteroceptive integration and loss of affective regulation, are proposed in looking for invariants in orbitofrontal syndrome. PMID- 29037339 TI - [Beyond Cognitive Impairment: Neuropsychiatric Symptoms in Neurodegenerative Dementias]. AB - As life expectancy increases, the number of people diagnosed with neurodegenerative dementia also increases. Although cognitive impairment is central in dementia, neuropsychiatric symptoms (NPS) are very important because they increase both direct and indirect costs by generating greater morbidity, caregiver distress, use of medication and institutionalisation. Furthermore, it is important to understand the nature of NPS, since they can vary across the different types of dementia and may provide useful clinical information regarding the aetiology of cognitive impairment. The first-line management of NPS in dementia is non-pharmacological; internal and external causes should first be identified and strategies developed to modify the behavioural patterns of the patient and their caregiver. In addition, changes in the patient's surroundings that may improve patient performance and behaviour should be encouraged. If these practices are not satisfactory, a pharmacological treatment approach is adopted that includes anti-dementia drugs, antipsychotics, antidepressants, mood stabilisers and benzodiazepines. However, psychoactive drugs do not offer sufficient efficacy and most of them have significant adverse effects, so each patient should be individually assessed, together with the implementation of non pharmacological strategies, before deciding on pharmacological treatment for the management of NPS in dementia. PMID- 29037340 TI - [Neuropsychiatry Of Movement Disorders]. AB - Movement disorders can be defined as neurological syndromes presenting with excessive or diminished automatic or voluntary movements not related to weakness or spasticity. Both Parkinson's disease (PD) and Huntington's disease (HD) are well-known examples of these syndromes. The high prevalence of comorbid psychiatric symptoms like depression, anxiety, obsessive-compulsive symptoms, hallucinations, delusions, impulsivity, sleep disorders, apathy and cognitive impairment mean that these conditions must be regarded as neuropsychiatric diseases. In this article, we review neuroanatomical (structural and functional), psychopathological and neuropsychological aspects of PD and HD. The role of fronto-subcortical loops in non-motor functions is particularly emphasised in order to understand the clinical spectrum of both diseases, together with the influence of genetic, psychological and psychosocial aspects. A brief description of the main psychopharmacological approaches for both diseases is also included. PMID- 29037341 TI - [Neurosyphilis: an Age-old Problem that is Still Relevant Today]. AB - Neurosyphilis is the clinical manifestation of syphilis that can arise during either the early or late stages of infection. Even though dedicated treatment for all clinical forms of syphilis has been available for many years, the advanced stages of the disease are still prevalent, with irreversible sequelae. This article reviews the current evidence, diagnostic methods and specific treatment for tertiary syphilis. PMID- 29037342 TI - [Pharmacological Treatment of Apathy in Parkinson's Disease: a Systematic Review of the Literature]. AB - INTRODUCTION AND OBJECTIVES: Apathy, defined as a deficit for initiating and maintaining action, is a symptom affecting patients with diverse psychiatric and neuropsychiatric diseases, including dementia, sequelae of traumatic brain injury, schizophrenia, depression, and Parkinson's disease (PD). Apathy negatively affects function and quality of life of PD patients, and it is an important cause of caregiver's distress. The pharmacological treatment of apathy in PD is the focus of this systematic review. METHODS: A comprehensive search and systematic selection was performed in different databases of original research papers on the treatment of apathy in PD. The results were then consolidated, and a critical analysis was made of the research papers. The results are then discussed according to the methodological standards for systematic reviews of the literature. RESULTS: A total of 11 studies were included. Although some studies showed efficacy, all of them had important methodological limitations that hampered the interpretation of results. The results of the examined studies cannot be considered as evidence for guiding clinical decisions. CONCLUSIONS: So far, no evidence-based recommendations can be offered for the treatment of apathy in PD. More studies with better methodological quality are needed. It is a potentially fruitful area for research and one badly needed by both PD patients and their caregivers. PMID- 29037343 TI - The prevalence of selected major birth defects in the United States. AB - Although collectively they are fairly common, birth defects receive limited attention as a group of outcomes either clinically or from a public health perspective. This article provides an overview of the prevalence, trends and selected socio-demographic risk factors for several major birth defects, including neural tube defects, cranio-facial anomalies, congenital heart defects, trisomies 13, 18, and 21, and gastroschisis and omphalocele. Attention should focus on strengthening existing registries, creating birth defects surveillance programs in states that do not have them, and standardizing registry methods so that broadly national data to monitor these trends are available. PMID- 29037344 TI - Optimism, enthusiasm, responsibility. PMID- 29037345 TI - Factors influencing the hemodynamic response to balloon angioplasty in the treatment of outflow anomalies of internal jugular veins. AB - OBJECTIVE: Percutaneous transluminal angioplasty (PTA) of the internal jugular veins (IJVs) has been proposed in recent years to treat chronic cerebrovascular venous insufficiency, with discordant results. Moreover, very little is known about the efficacy of PTA in restoring a normal cerebral venous outflow. The aim of this study was to investigate the anatomic factors and patient characteristics that might influence the efficacy of PTA of the IJV. METHODS: There were 797 consecutive patients with venous outflow anomalies who underwent standardized, operator-independent catheter venography and PTA of the IJVs. Before and after PTA, morphologic and hemodynamic anomalies of the IJVs were documented. The primary end point of the study was to evaluate the morphologic factors influencing the efficacy of angioplasty in improving IJV outflow. RESULTS: PTA resulted in an increased outflow through the IJVs in most patients. However, younger individuals with transverse endoluminal defects and higher pre-PTA flows are more likely to respond well to PTA compared with those who exhibit hypoplasia, stenosis, or longitudinal endoluminal defects. CONCLUSIONS: This study identified the factors that influence and could predict the efficacy of PTA in the treatment of IJV anomalies. PMID- 29037346 TI - Contemporary outcomes of elective iliocaval and infrainguinal venous intervention for post-thrombotic chronic venous occlusive disease. AB - BACKGROUND: Patients with iliofemoral deep venous thrombosis are at risk for development of post-thrombotic syndrome. Iliac vein stenting has been shown to significantly improve clinical outcomes in patients with venous outflow obstruction, although many studies include a heterogeneous population with several different venous pathologic processes. Our objective was to evaluate the results of iliocaval and infrainguinal venous intervention for venous outflow obstruction due to post-thrombotic chronic venous occlusive disease. METHODS: All patients treated at a single institution for symptomatic iliocaval venous occlusive lesions with and without infrainguinal extension between 2008 and 2015 were retrospectively analyzed. Nonthrombotic iliac vein lesions were excluded from analysis. All patients with symptomatic post-thrombotic occlusion of the iliac vein or inferior vena cava (IVC) and a Clinical, Etiology, Anatomy, and Pathophysiology (CEAP) score of 3 or greater were included. Demographics of the patients, presence of IVC filters at presentation, presenting CEAP score, postintervention CEAP score, primary and secondary patency, wound healing and subjective clinical improvement outcomes, and procedural details were recorded in a database. RESULTS: There were 105 patients with symptomatic iliocaval venous occlusive lesions identified, of which 31 patients (42 limbs) met inclusion criteria. Presenting symptoms included pain or swelling (100%); venous claudication (81%); and CEAP class 3 (76%), 4 or 5 (14%), or 6 (10%). All patients presented with either subacute (>30 days [35%]) or chronic (>90 days [65%]) iliocaval venous thrombosis. Procedural technical success with venous recanalization was achieved in 100% of cases and in 46% of IVC filter retrieval attempts. Overall clinical improvement was achieved in 84% of patients; complete clinical resolution was obtained in 42% and a decrease in CEAP score in 65%. At a mean follow-up of 14.7 months (range, 2-49 months), primary and secondary 1-year patency was 66% and 75% overall, and primary patency was equivalent between patients requiring isolated iliac venous stenting and those requiring infrainguinal stent extension (68% vs 65%, respectively; P = .74, not significant). Patients who presented with IVC filters had a higher rate of complete clinical resolution if the filter could be removed (100%) compared with those patients in whom the filter could not be removed (17%; P < .01). CONCLUSIONS: Treatment of chronic venous occlusive disease with iliocaval and infrainguinal venous stenting is associated with acceptable 1-year patency rates, healing of venous ulcers, and a significant reduction in symptoms and CEAP score. Patients who underwent successful removal of indwelling IVC filters showed improved clinical outcomes compared with those in whom the IVC filter could not be removed. PMID- 29037347 TI - Invited commentary. PMID- 29037348 TI - Retrieval characteristics of the Bard Denali and Argon Option inferior vena cava filters. AB - OBJECTIVE: The purpose of this study was to compare the retrieval characteristics of the Option Elite (Argon Medical, Plano, Tex) and Denali (Bard, Tempe, Ariz) retrievable inferior vena cava filters (IVCFs), two filters that share a similar conical design. METHODS: A single-center, retrospective study reviewed all Option and Denali IVCF removals during a 36-month period. Attempted retrievals were classified as advanced if the routine "snare and sheath" technique was initially unsuccessful despite multiple attempts or an alternative endovascular maneuver or access site was used. Patient and filter characteristics were documented. RESULTS: In our study, 63 Option and 45 Denali IVCFs were retrieved, with an average dwell time of 128.73 and 99.3 days, respectively. Significantly higher median fluoroscopy times were experienced in retrieving the Option filter compared with the Denali filter (12.18 vs 6.85 minutes; P = .046). Use of adjunctive techniques was also higher in comparing the Option filter with the Denali filter (19.0% vs 8.7%; P = .079). No significant difference was noted between these groups in regard to gender, age, or history of malignant disease. CONCLUSIONS: Option IVCF retrieval procedures required significantly longer retrieval fluoroscopy time compared with Denali IVCFs. Although procedure time was not analyzed in this study, as a surrogate, the increased fluoroscopy time may also have an impact on procedural direct costs and throughput. PMID- 29037349 TI - The optimal procedure of modified Rex shunt for the treatment of extrahepatic portal hypertension in children. AB - OBJECTIVE: Since 2008, the modified Rex shunt has been used for the treatment of extrahepatic portal venous obstruction (EHPVO) in our center, and satisfactory results were initially achieved. However, the postoperative recurrence rate gradually increased. We therefore performed a retrospective study to evaluate the outcome and identify the optimal procedure. METHODS: Between October 2008 and March 2016, 79 children with EHPVO underwent the Rex shunt in our hospital: 48 underwent the gastroportal shunt (GP), 26 underwent the portal cavernoma-Rex shunt with interposition of grafted portal vessel (PP), and 5 underwent a spleen preserving splenoportal bypass (SP). The results of these three types of operation were compared. RESULTS: The portal pressure and splenic size were significantly reduced after surgery (P < .05). The levels of platelet and hemoglobin were significantly increased after surgery (P < .05). The operative time in the GP group was significantly longer than in the PP group (P = .045). The diameter of the bypass vein was significantly larger in the GP group than in the PP group (P = .029). Postoperative rebleeding occurred in 19%: 22.9% (11 of 48) in the GP group, 11.5% (3 of 26) in PP group, and 20% (1 of 5) in the SP group. There was no significant difference in the splenic size, postoperative portal pressure, hospital stay, blood flow velocity, or hemoglobin among the three groups (P > .05). CONCLUSIONS: The modified Rex shunt is an effective treatment of EHPVO in children, and we believe that the PP procedure is the most suitable modified Rex shunt in our center. PMID- 29037350 TI - Prospective study of safety and effectiveness in the use of radiofrequency ablation for incompetent great saphenous vein >=12 mm. AB - OBJECTIVE: The objective of this study was to assess the outcomes of radiofrequency ablation (RFA) in incompetent great saphenous vein (GSV) according to its diameter. METHODS: This was a prospective single-center study including all patients treated with RFA from September 2014 to December 2015. The sample was divided according to the maximum GSV diameter measured on duplex ultrasound scan (A, <12 mm; B, >=12 mm). Second-generation catheters (ClosureFast; Covidien, Mansfield, Mass) and tumescent anesthesia were used. Clinical stage (according to Clinical, Etiology, Anatomy, and Pathophysiology [CEAP] classification), quality of life (measured by the 14-item Chronic Venous Insufficiency Questionnaire), and pain on visual analog scale were recorded before the procedure and during follow up. Technical success was defined as GSV occlusion on duplex ultrasound scan. Safety was defined as incidence and type of adverse events at 10 days, 1 month, 6 months, and 12 months. RESULTS: There were 257 patients included, 183 (71%) with GSV diameter <12 mm and 74 (29%) with GSV diameter >=12 mm. Mean GSV diameter was 8 +/- 2 mm (4-11 mm) and 14 +/- 2 mm (12-21 mm), respectively. Before the procedure, although a tendency toward greater clinical severity was observed in group B, no significant differences were found in the percentage of patients in C4 and C5 categories (A, 10%; B, 22%), median pain perception (A, 40; B, 39), or median quality of life value on the 14-item Chronic Venous Insufficiency Questionnaire scale (A, 27; B, 27). The rate of GSV occlusion at 1 month (n = 221) was 97% in group A and 100% in group B (P = .325); at 6 months (n = 158), it was 97% and 98%, respectively (P > .999); and at 12 months (n = 90), it was 99% and 96% (P = .481). There was a significant improvement in pain and quality of life in both groups, without differences between them. Finally, no differences between groups were found in terms of adverse events. Paresthesias were the most frequent event (A, 4%; B, 5%; P = NS), which disappeared during follow-up in half of the cases. Regarding major adverse events, there was only one case of deep venous thrombosis in group B. CONCLUSIONS: RFA is safe and effective for the treatment of GSV >=12 mm at midterm. PMID- 29037352 TI - Invited commentary. PMID- 29037351 TI - Rivaroxaban versus fondaparinux for thromboprophylaxis after endovenous laser ablation. AB - OBJECTIVE: Endovenous heat-induced thrombosis (EHIT) and deep venous thrombosis (DVT) are well-known complications after superficial endovenous thermoablation. We investigated the efficacy of rivaroxaban in preventing EHIT and DVT after endovenous laser ablation (EVLA). METHODS: We retrospectively analyzed a consecutive series of patients presenting with truncal varicosis class C2 to C6 undergoing EVLA. After EVLA, all patients received oral rivaroxaban (10 mg) or subcutaneous fondaparinux (2.5 mg) once daily for 3 consecutive days. The primary end point was the composite of EHIT or DVT assessed by duplex ultrasound imaging after 1 and 4 weeks. EHIT class 1 was defined as the thrombus extending to the saphenofemoral junction. Extension into the deep venous system with a cross sectional area obstruction <50% was considered EHIT class 2. EHIT class 3 was defined as >50% cross-sectional area obstruction. EHIT class 4 was total occlusion of the femoral vein. The secondary end points were minor or major bleeding, paresthesia, and skin burns. RESULTS: Between February 2009 and December 2015, 391 patients (473 limbs) were treated with EVLA of the truncal saphenous vein. The primary end point occurred in 13 of 166 (7.8%) and 14 of 225 (6.2%) after 1 week and in 13 of 166 (7.8%) and 15 of 225 (6.7%) after 4 weeks comparing the rivaroxaban and fondaparinux groups (P = .659). EHIT class 1 was observed in 20 patients (5.1%) and EHIT class 2 in five (1.3%). No patients had EHIT class 3 or 4. The incidence of DVT was one of 166 (0.6%) in the rivaroxaban group and two of 225 (0.9%) in the fondaparinux group (P = .750). Minor bleeding events occurred in 17 of 166 patients (10.2%) and in 20 of 225 patients (8.9%), respectively (P = .652). No major bleeding events were observed. Paresthesia was observed in 12.5% in the rivaroxaban group and in 17.8% in the fondaparinux group. No skin burns were observed. CONCLUSIONS: Rivaroxaban offers an oral medication approach showing no difference in preventing EHIT and DVT compared with fondaparinux, without increased bleeding risk. PMID- 29037353 TI - Shortened protocol for radiofrequency ablation of perforator veins. AB - BACKGROUND: Routine radiofrequency ablation (RFA) of an incompetent perforator vein (IPV) using the standard treatment protocol at 85 degrees C has a treatment time of 6 minutes. To make treatment time more efficient, we sought to determine the effect of a shortened protocol for radiofrequency stylet (RFS) ablation by comparing the early success using three different temperatures: 85 degrees C, 90 degrees C, and 95 degrees C. METHODS: A retrospective study examined 642 procedures of IPV closures in 255 patients with varying degrees of venous insufficiency treated with RFA from 2009 to 2015. The Covidien (Mansfield, Mass) RFA system allows the operator to regulate temperature and allows increments in temperature of the RFS to 85 degrees C, 90 degrees C, and 95 degrees C. The RFS probe was angled at four 90-degree angles at the mentioned temperatures with a shorter treatment time at 6, 4, and 3 minutes, respectively. The three different treatment protocols were compared. All patients had comparative preoperative and postoperative duplex ultrasound scans. Postoperative duplex ultrasound scans were performed 3 to 7 days after the procedure. Successful obliteration was defined as lack of color flow on postoperative duplex ultrasound scanning. Clinical correlation with age, gender, laterality, presenting symptoms (Clinical, Etiology, Anatomy, and Pathophysiology [CEAP] classification), location, and vein diameter was also performed. RESULTS: Of the 255 patients who underwent RFS ablation, 138 were female, with a mean age of 65 years (standard deviation, +/ 14.6 years). These patients had CEAP presentations from C1 to C6 (0 C1, 1 C2, 57 C3, 118 C4, 4 C5, 75 C6). The location of the 642 IPVs was distributed as 472 in the calf and 170 in the ankle; 322 of these procedures were performed on the right leg. Use of a shortened protocol had no significant effect on the early obliteration rates with the 85 degrees C, 90 degrees C, and 95 degrees C protocols, which were 66.1%, 61.8%, and 67.1%, respectively. Significant correlation was seen between location of targeted vein and successful obliteration (P < .001). There was a borderline inverse linear association between higher stylet temperature and successful obliteration in the proximal calf at 85 degrees C. After accounting for within-patient correlation, the middle and distal calf continued to show higher nonobliteration compared with the ankle. No clinical correlation with age, gender, laterality, presenting symptoms of CEAP, or vein diameter was observed. CONCLUSIONS: The study showed that shortening the protocol time for RFA of the perforator did not make a significant difference in the early success rate, regardless of the temperature. The overall early success rate is still low (65.1%). RFA of perforator veins has a higher successful closure rate in proximal calf and ankle areas compared with the middle and distal calf. PMID- 29037355 TI - Invited commentary. PMID- 29037356 TI - Three-dimensional digital imaging is as accurate and reliable to measure leg ulcer area as transparent tracing with digital planimetry. AB - OBJECTIVE: An accurate and reliable method for measuring venous leg ulcer (VLU) area is important in assessing treatment effects. The new three-dimensional (3D) LifeViz digital imaging system (QuantifiCare S.A., Valbonne, France) combines a compact, easy to use stereovision camera and image management software to provide 3D medical images. The aim of this prospective study was to investigate whether the 3D LifeViz digital imaging system could be considered a suitable alternative to manual transparent wound tracing for the measurement of VLU area and 4-week healing rates. METHODS: A prospective cohort study was conducted in two tertiary centers between November 2013 and January 2014. The intrarater variability of the digital imaging system was assessed by comparison of the target wound (TW) areas obtained at the inclusion visit (W0) and 2 days after W0 for each local rater. The inter-rater variability of the two methods at W0 and the study end visit was assessed using the TW area measurements obtained by local and central raters. RESULTS: A total of 36 consecutive outpatients, each presenting with at least one VLU and representing a total of 44 TWs, were recruited. At inclusion, comparable results were observed with both methods in terms of mean VLU area, showing a good correlation of the digital imaging method with the transparent tracing method (concordance correlation coefficient [CCC], 0.989; 95% confidence interval [C], 0.983-0.992). Furthermore, this system detected the same changes in the 4-week healing rate as the transparent tracing method, showing that both methods were equivalent in measuring changes in VLU areas over time (CCC, 0.996; 95% CI, 0.994 0.997). Strong intrarater and inter-rater concordances demonstrated good reproducibility of the digital imaging system for VLU area measurements (CCC, 0.994 [95% CI, 0.992-0.995] for intrarater variability; and CCC >=0.99 for each center for inter-rater variability). Moreover, regardless of the operator measuring the VLUs, the reliability of image capture and image quality remained excellent. CONCLUSIONS: The 3D LifeViz digital imaging system is a noncontact stereophotographic method that provides measurements of VLU area or changes in VLU areas that are as accurate and reliable as those obtained using the planimetry method and in conditions as close as possible to those of a clinical trial. PMID- 29037357 TI - Topical timolol promotes healing of chronic leg ulcer. AB - BACKGROUND: Chronic ulcers are a common problem, with chronic diabetic and venous ulcers forming a large proportion. This is the first case-control study to assess the effect of topical timolol on healing of chronic venous and chronic diabetic ulcers. METHODS: The study included 60 patients with chronic leg ulcers. The ulcers in the study group (n = 30) were treated with topical 0.5% timolol maleate solution along with antibiotics and dressings; those in the control group (n = 30) received only antibiotics and dressings. The ulcers in both groups were evaluated at 4, 8, and 12 weeks, and ulcer area was calculated. Healing rate was assessed by calculating the percentage change in ulcer area. RESULTS: The mean percentage change in area at 4, 8, and 12 weeks was 25.29, 43.77, and 61.79 in the study group and 11.92, 22.40, and 29.62 in the control group. Analysis showed that there were significant differences in percentage change in ulcer of the study and control groups at all three time points and also within the groups. The type of ulcer, history of alcohol consumption, and smoking did not affect the healing rates in the study group. CONCLUSIONS: Topical beta-blockade using timolol improves the healing of chronic leg ulcers. PMID- 29037354 TI - Baseline factors affecting closure of venous leg ulcers. AB - OBJECTIVE: The objective of this study was to characterize factors associated with closure of venous leg ulcers (VLUs) in a pooled analysis of subjects from three randomized clinical trials. METHODS: Closure of VLUs after treatment with HP802-247, an allogeneic living cell therapy consisting of growth-arrested human keratinocytes and fibroblasts, vs standard therapy with compression bandaging was evaluated in three phase 3 clinical trials of similar design. Two trials enrolled subjects with VLUs ranging from 2 cm2 to 12 cm2 in area with 12-week treatment periods; the third trial enrolled subjects with VLUs between >12 cm2 and <=36 cm2 with a 16-week treatment period. The first trial went to completion but failed to demonstrate a benefit to therapy with HP802-247 compared with placebo, and because of this, the remaining trials were terminated before completion. On the basis of no differences in outcomes between groups, subjects from both HP802-247 and control groups were pooled across all three studies. Cox proportional hazards regression analysis was employed to evaluate factors associated with VLU closure. RESULTS: This analysis included data from 716 subjects with VLU. Factors evaluated for association with healing included age, gender, race, diabetes, glycated hemoglobin level, body mass index, treatment (HP802-247 vs compression alone), and ulcer characteristics including location and area and duration at baseline. In an initial model including all of these putative factors, the following were significant at the P < .10 level: diagnosis of diabetes mellitus, gender, wound location (ankle or leg), baseline wound area, and wound duration at baseline. In a final model including only these factors, all but diabetes mellitus were significant at the P < .05 level. Effect sizes were as follows (hazard ratio [95% confidence interval]): female gender (1.384 [1.134-1.690]), wound location on the leg (1.490 [1.187-1.871]), smaller wound area at baseline (0.907 [0.887-0.927]), and shorter wound duration at baseline (0.971 [0.955 0.987]). CONCLUSIONS: Factors associated with VLU lesions including location, area, and duration were important predictors of healing. Women were more likely than men to achieve wound closure. Factors including body mass index, the presence of diabetes mellitus, and higher concentrations of glycated hemoglobin were not significant independent predictors of wound closure in this analysis. PMID- 29037358 TI - Superimposition of elastic and nonelastic compression bandages. AB - OBJECTIVE: The objective of this study was to investigate the pressure applied by superimposed bandages and to compare it with the pressure applied by single component bandages. METHODS: Six different bandages, composed of one elastic bandage, one nonelastic bandage, or both, were applied in a spiral pattern on both legs of 25 patients at risk of venous thrombosis as a consequence of central or peripheral motor deficiency. Pressure was measured at four measurement points on the leg (B1 and C on the medial and lateral sides of the leg) and in three positions: supine, sitting, and standing. RESULTS: The two single bandages applied similar pressure in the supine position. Their superimposition showed different pressure levels (P < .05) but similar static stiffness index, depending on the order in which the bandage components were applied on the leg. The highest interface pressure was measured at point B1 on the medial side of the leg. This point also showed the highest pressure increase from supine to standing position. The pressure applied by the superimposition of two bandages was computed as a linear combination of the pressure applied by each single component (with a constant term set to 0). However, this linear combination did not properly fit the experimental pressure measurements. CONCLUSIONS: The order of bandage application showed a significant impact on interface pressure. However, the poor correlation between the pressure applied by each bandage component and the pressure resulting from their superimposition underlined the poor understanding of interface pressure generated by the superimposition of compression bandages and should lead to further investigations. PMID- 29037359 TI - Thigh compartment syndrome during extracorporeal life support. AB - OBJECTIVE: The aim of this study was to report our experience with patients on the extracorporeal life support system (ECLS) who presented with thigh compartment syndrome, a yet unreported complication. METHODS: A retrospective analysis was performed from April 2003 to April 2017 to identify patients who presented to our department for treatment of acute compartment syndrome of the thigh after cannulation of the ECLS through the femoral artery and vein. RESULTS: Five patients, aged 30 to 84 years, who developed thigh compartment syndrome during ECLS therapy were identified. In three patients, the cause was arterial malperfusion; in one patient, the cause was venous malfunction and arterial malperfusion due to malposition of the arterial distal leg perfusion cannula in the femoral vein. The fifth patient suffered impaired venous drainage. Patients were on ECLS for 4 +/- 2 days, and decompressive fasciotomy was performed in all patients 1 +/- 1 days after ECLS commencement. Thigh compartment syndrome was responsible for significant morbidity, including prolonged open wound therapy, hospitalization, and leg amputation in one patient. CONCLUSIONS: Compartment syndrome of the thigh is a limb- and life-threatening complication and may occur in patients on ECLS. Angiographic or duplex ultrasound control of adequate limb perfusion and correct placement of the perfusion cannulas is recommended. Also, awareness of and close clinical observation for thigh perfusion and compartment syndrome are essential in patients during ECLS therapy. PMID- 29037360 TI - Factors influencing peripheral venous pressure in an experimental model. AB - BACKGROUND: Peripheral venous hypertension and microvascular injury have merged as central features of chronic venous disease. Peripheral venous pressure in the lower limb is controlled by central and peripheral mechanisms. In the current manuscript, we examine the role of peripheral factors, particularly conduit capacitance compliance, focal stenosis, and arterial inflow into the calf. METHODS: An experimental venous model using Penrose tubing as a venous analogue was used where the aforementioned parameters could be manipulated. Volume pressure curves were derived in the static mode. The dynamic model attempted to simulate key pressure parameters of lower limb venous flow. RESULTS: Decreasing compliance resulted in progressive reduction of conduit capacitance affecting both bending and stretching regimens and the relative distribution between the two, rotating the volume-pressure curve toward the x-axis. Increased postcapillary (arterial) inflow increased conduit pressure. For a given inflow, pressures varied inversely to conduit caliber. Decreased compliance led to a smaller functional caliber at working pressures. Sideline capacitance with stagnant flow connected to the flow channel (simulating calf vein network) did not influence conduit pressure. Focal stenosis increased "venous pressure" if it was narrower than "optimum outflow caliber," defined as the minimum outflow conduit caliber required to balance inflow. Percentage stenosis as traditionally calculated using adjacent lumen as denominator was uncorrelated to pressure increase. CONCLUSIONS: Conduit pressure is increased with smaller native or functional (poor compliance) caliber, focal stenosis, and increased postcapillary inflow. Many of these features appear to be present in limbs clinically suspected of chronic venous disease. The importance of the geometric factor of Poiseuille equation in pressure effects of caliber reduction and collateralization is discussed. PMID- 29037361 TI - A novel surgical approach to symptomatic left renal vein aneurysm. AB - Visceral venous aneurysms are uncommon and renal vein aneurysms are among the rarest in this subset. Renal vein aneurysms are frequently asymptomatic, but patients may present with flank pain or hematuria. Complications of untreated visceral venous aneurysms include thrombus formation and, very rarely, rupture. Treatment of renal vein aneurysms ranges from watchful waiting to surgical repair. We describe a patient with renal vein aneurysm presenting with recurrent pulmonary embolus with no other identifiable source. Furthermore, we propose a novel surgical treatment with complete resection of the aneurysm and reconstruction of venous return by transposing the inferior mesenteric vein to the remaining left renal vein. PMID- 29037362 TI - Treatment of chronic headaches with internal jugular vein-to-innominate vein bypass. PMID- 29037363 TI - A systematic review and meta-analysis of two novel techniques of nonthermal endovenous ablation of the great saphenous vein. AB - BACKGROUND: Endothermal treatment of the great saphenous vein (GSV) has become the first-line treatment for superficial venous reflux. Nonthermal ablation has potential benefits for acceptability by patients and decreased risk of nerve injury. We performed a systematic review and meta-analysis to evaluate the efficacy of mechanochemical endovenous ablation (MOCA) and cyanoacrylate vein ablation (CAVA) for GSV incompetence. METHODS: MEDLINE, Embase, Cumulative Index to Nursing and Allied Health Literature, and Cochrane databases were searched for papers published between January 1966 and December 2016. Eligible articles were prospective studies that included patients treated for GSV incompetence and described the primary outcome. Exclusion criteria were full text not available, case reports, retrospective studies, small series (n < 10), reviews, abstracts, animal studies, studies of small saphenous vein incompetence, and recurrent GSV incompetence. Primary outcome was anatomic success. Secondary outcomes were initial technical success, Venous Clinical Severity Score, Aberdeen Varicose Vein Questionnaire score, and complications. RESULTS: Fifteen articles met the inclusion criteria. Pooled anatomic success for MOCA and CAVA was 94.7% and 94.8% at 6 months and 94.1% and 89.0% at 1 year, respectively. Venous Clinical Severity Score and Aberdeen Varicose Vein Questionnaire score significantly improved after treatment with MOCA and CAVA. CONCLUSIONS: These results are promising for these novel techniques that could serve as alternatives for thermal ablation techniques. However, to determine their exact role in clinical practice, high quality randomized controlled trials comparing these novel modalities with well established techniques are required. PMID- 29037364 TI - A national resident survey about the current state of venous education in vascular surgery training programs. AB - OBJECTIVE: The objective of this study was to characterize U.S. vascular surgery trainees' perceptions, case numbers, and attitudes toward venous disease education, as well as their intent to incorporate it into future practice. These data will provide us with a current snapshot of postgraduate venous education from a resident's perspective. METHODS: Institutional Review Board approval was obtained. A 13-question survey was created and distributed to all vascular surgery residents in the United States by SurveyMonkey. Formal electronic distribution remained deidentified as the surveys were e-mailed to residents from the Association of Program Directors in Vascular Surgery. RESULTS: Of 464 vascular surgery trainees queried, 104 (22%) responded to the survey. The majority of responders (80%) were between 25 and 34 years of age, 60% were male, and 72% were white; 91% reported that they were in an academic training program, and 57% were enrolled in an integrated vascular surgery residency program. Postgraduate years (PGYs) of training among respondents were well represented: PGY 1, 14%; PGY 2, 8%; PGY 3, 14%; PGY 4, 12%; PGY 5, 9%; PGY 6, 18%; and PGY 7, 25%. Vascular resident training experience with venous disease revealed the following: 63% performed <10 inferior vena cava stents, 64% performed <10 vein stripping/ligation procedures, and 50% performed <10 iliac stents; 92% of responders reported having performed <10 venous bypasses during their training. Experience with endothermal ablations was slightly better, with 74% of responders reporting having performed up to 20 cases. Case volumes for endothermal ablation, vein stripping/ligation, inferior vena cava stenting, and iliac stenting increased progressively by clinical training year among integrated vascular residents (P <= .02) but were relatively stable for classic 5 + 2 vascular fellows (P >= .67). Integrated residents reported having received more didactic venous education than the 5 + 2 vascular surgery fellows (P = .01). There were no differences in overall reported venous procedure volumes between groups (P >= .28). The majority of trainees (82%) acknowledged that treating venous disease is part of a standard vascular surgery practice, and many (75%) indicated a desire to have increased venous training. Despite this, 59% of responders reported plans to dedicate <25% of their future vascular surgery practice to venous disease. CONCLUSIONS: In this national survey-based study of vascular surgery trainees, we demonstrate a perceived weakness in venous disease case volumes and didactic education in residency. This training deficit is apparent in both integrated (0 + 5) and traditional (5 + 2) training pathways. Our data suggest that expansion of the venous disease curriculum with clear training standards is warranted and that trainees would welcome such a change. PMID- 29037365 TI - A look ahead into Advanced Alternative Payment Models in vascular surgery. PMID- 29037366 TI - Oral tolerance induction in allergy: Kissing awake a sleeping beauty. PMID- 29037367 TI - In vitro, ex vivo, in vivo toxicology, the terminology issue. PMID- 29037368 TI - Developing a new individualized 3-node model for evaluating the effects of personal factors on thermal sensation. AB - Individual differences, such as weight, height, gender, age, and Basal Metabolic Rate (BMR), between human subjects can significantly affect body thermoregulatory mechanisms. Therefore, application of common population-based thermal comfort models cannot provide accurate results for an individual's thermal sensation. Based on the standard thermal models, including those of Fanger and Gagge, individual parameters are not considered in the evaluation of thermal sensations. Thus, these simplified standard models have some limitations under varied individual conditions. In this study, a new individualized thermal comfort model is presented on the basis of a simplified 3-node model. This model was developed by regarding the effects of individual characteristics, such as age, gender, Body Mass Index (BMI), and BMR on the thermal sensations of the bare and clothed parts of the body. A good agreement was found in the current model, which was verified based on the experimental data. In conclusion, the results indicated that the mean error in the prediction of skin temperature decreased from 1.2 degrees C to 0.4 degrees C when using the new individual model instead of a non-individualized 3-node model. PMID- 29037369 TI - Ambient temperature and humidity modulate the behavioural thermoregulation of a small arboreal mammal (Callicebus bernhardi). AB - Maintaining a constant body temperature is critical to the proper functioning of metabolic reactions. Behavioural thermoregulation strategies may minimize the cost of energetic balance when an animal is outside its thermoneutral zone. We investigated whether ambient temperature and relative air humidity influence the use of behavioural strategies by a group of Prince Bernhard's titi monkeys (Callicebus bernhardi) living in a forest fragment. We monitored a social group composed of four individuals (an adult couple and two juveniles) for 1010h from March to September 2015. We used the instantaneous scan sampling method to record the body posture, the microhabitat, and the occurrence of huddling with group mate(s) when animals were resting. We recorded ambient temperature and relative humidity in the shade every 10min with a data logger hanging at a height of approximately 5m. Daytime temperature ranged from 18.5 degrees C to 38.5 degrees C and relative humidity ranged from 21% to 97%. Titi monkeys avoided sunny places at higher temperatures, especially above 31 degrees C. Minimum night temperature did not influence the choice of resting microhabitats during the first hour after sunrise. Sitting was the major resting posture during the day (62%). Titi monkeys increased the use of heat-dissipating postures at ambient temperatures >27 degrees C. In addition, an increase in relative humidity increased the use of these postures at 26 degrees C, 27 degrees C, 29 degrees C and 33 degrees C, but caused a decrease at 24 degrees C. On the other hand, the ambient temperature did not influence the occurrence of huddling. We conclude that microhabitat choice and postural behaviour are important for titi monkeys to prevent overheating and suggest that these behavioural adjustments might also be critical for other tropical arboreal mammals. PMID- 29037370 TI - Modeling warming predicts a physiological threshold for the extinction of the living fossil frog Calyptocephalella gayi. AB - Global climate change will have a greater impact on ectotherms in tropical and subtropical communities than at higher latitudes, because ambient temperatures are closer to the upper thermal limits of species. Amphibian species are highly dependent on external weather conditions, and the effect of global warming on these has been evaluated recently. The Great Chilean frog (Calyptocephalella gayi) is an endemic, monotypic species and genus whose conservation status is considered Vulnerable because of high extraction pressure for human consumption, lack of regulatory measures and comprehension by its consumers. Their populations have also declined due to the loss and destruction of their habitats. C. gayi has not been considered as an object of physiological study, so this large species is not known as one that can adapt to current environmental changes. In this study we analyze the thermoregulatory capacity and thermal efficiency of C. gayi to determine its potential for climatic adaptation. The results indicate that this species is strictly a thermal-conformer; its thermal efficiency and its ability to withstand high temperatures allow it to sustain itself under a climate change scenario, however, it has thermal constraints that do not allow it to withstand temperatures greater than 30 degrees C. By modeling its ontogenetic conditions mathematically, we project that the larvae are not in danger, although there is a group of around 4% which is very close to 30 degrees C, which is the highest temperature recorded for the species. However, about 40% of subadults and approximately 47% of adult frogs will not survive the change of ~7 degrees C projected for the following 85 years, which will affect future generations. PMID- 29037371 TI - Body temperature in premature infants during the first week of life: Exploration using infrared thermal imaging. AB - BACKGROUND: Hypothermia is a problem for very premature infants after birth and leads to increased morbidity and mortality. Previously we found very premature infants exhibit abnormal thermal patterns, keeping foot temperatures warmer than abdominal temperatures for their first 12h of life. PURPOSE: We explored the utility of infrared thermography as a non-invasive method for measuring body temperature in premature infants in an attempt to regionally examine differential temperatures. RESULTS: Our use of infrared imaging to measure abdominal and foot temperature for extremely premature infants in heated, humid incubators was successful and in close agreement using Bland and Altman technique with temperatures measured by skin thermistors. CONCLUSIONS: Our study methods demonstrated that it was feasible to capture full body temperatures of extremely premature infants while they were resting in a heated, humid incubator using a Flir SC640 infrared camera. This technology offers researchers and clinicians a method to examine acute changes in perfusion differentials in premature infants which may lead to morbidity. PMID- 29037372 TI - Effects of in vitro heat shock on immune cells in diet-induced obese mice. AB - Obesity has been associated with impaired immune responses and inflammation. The mechanisms underlying these immune disturbances in obesity are not yet clarified. This study investigated the effects of in vitro heat shock (HS) on immune cells from the point of view of thymocyte apoptosis and T-cell mitogen-stimulated splenocyte cytokine production as well as the heat shock protein 70 (HSP70) protein levels in diet-induced obese mice to explore a possible association between the disturbance of T cell immunity and HS response in obesity. Obese mice had increased apoptotic and necrotic thymocytes populations and increased splenocyte cytokine production of both proinflammatory and anti-inflammatory cytokines compared with lean mice. The in vitro HS at 42 degrees C decreased the rate of live cells in thymocytes, and the degree of the decrease was larger in obese mice compared with lean mice. The in vitro HS increased the intracellular and extracellular HSP70 protein levels in thymocytes and splenocytes, while the effects of obesity on the HSP70 protein levels were not obvious. The in vitro HS prior to T cell mitogen stimulation decreased IFN-gamma and IL-10 production by mitogen-stimulated splenocytes. This change in cytokine production due to HS was not affected by obesity. The obvious alteration of the HSP70 protein levels and association between cytokine production and the HS response in obesity were not found in this obesity model; however, our results indicate an association between the viability of thymocytes and an altered HS response in obesity and provide evidence that the increase in thymocyte apoptosis and acceleration of thymus involution in obesity could be, in part, due to the alteration of the HS response. PMID- 29037373 TI - Fast inverse prediction of the freezing front in cryosurgery. AB - Cryosurgery has become a well-established technique for the ablation of undesirable tissues such as tumors and cancers. The motivation for this study is to improve the efficacy and safety of this technique. This study presents an inverse heat transfer method for monitoring the motion of the freezing front from a cryoprobe. With the help of a thermocouple inserted into the layer of diseased tissue, the inverse heat transfer method estimates simultaneously the blood perfusion rate and the thermal conductivities of both frozen and unfrozen tissues. This information is then fed to the Pennes bioheat equation that: (1) calculates the time-varying temperature distribution inside the layer of tissue and (2) predicts the motion of the freezing front. The effect of the most influential parameters on the inverse predictions is investigated. These parameters are (1) the initial guesses for the unknown Levenberg-Marquardt polynomial parameters of the thermo-physical properties; (2) the temperature of the cryoprobe; (3) the heat transfer coefficient of the impinging jet of liquid nitrogen; and (4) the noise on the temperature data recorded by the thermocouple probe. Results show that the proposed inverse method is a promising alternative to ultrasound and Magnetic Resonance Imaging (MRI) for monitoring the motion of the freezing front during cryosurgery. For all the cryogenic scenarios simulated, the predictions of the inverse model remain accurate and stable. PMID- 29037374 TI - Sensitivity to cutaneous warm stimuli varies greatly in the human head. AB - The head has been known as the most sensitive area to temperature changes but the values are limited to the face. The purpose of this study was to examine cutaneous warm thresholds on the scalp and face of young males. Eight males participated in this study (24 +/- 3 yrs in age, 178.2 +/- 5.3cm in height, and 90.0 +/- 15.4kg in body mass). All measurements were conducted in an environmental chamber (27 +/- 1 degrees C air temperature and 53 +/- 1% relative humidity). Cutaneous warm thresholds were measured on nine areas of the following regions: the frontal (two points on the right), parietal (a point on the right and the vertex, respectively), temporal (two points on the right), and occipital region (on the right) along with the forehead using a thermal stimulator (rate of temperature increase 0.1 degrees Cs-1). Skin temperatures on the nine head regions were monitored during the threshold test. The results showed that 1) no significant differences were found in initial skin temperatures among the nine head regions; 2) cutaneous warm detecting temperatures were significantly greater on the vertex (38.2 +/- 3.5 degrees C) than on the forehead (34.8 +/- 1.4 degrees C) and the other seven scalp regions (P < 0.05); 3) subjects detected the increase of 1.2 +/- 1.0 degrees C on the forehead and 1.5 +/- 1.2 degrees C on the occipital region as the first warmth while the vertex was the most insensitive to the increase of temperature (4.0 +/- 3.2 degrees C) (P < 0.05). In summary, the scalp region of young males was less sensitive to the temperature change when compared to the forehead, and the vertex was the most insensitive among the eight scalp regions to the temperature increase. We conclude that the entire head should be considered as a binary topography with the face and the scalp in terms of cutaneous thermal sensitivity. PMID- 29037375 TI - Modelling hand skin temperature in relation to body composition. AB - Skin temperature is a challenging parameter to predict due to the complex interaction of physical and physiological variations. Previous studies concerning the correlation of regional physiological characteristics and body composition showed that obese people have higher hand skin temperature compared to the normal weight people. To predict hand skin temperature in a different environment, a two node hand thermophysiological model was developed and validated with published experimental data. In addition, a sensitivity analysis was performed which showed that the variations in skin blood flow and blood temperature are most influential on hand skin temperature. The hand model was applied to simulate the hand skin temperature of the obese and normal weight subgroup in different ambient conditions. Higher skin blood flow and blood temperature were used in the simulation of obese people. The results showed a good agreement with experimental data from the literature, with the maximum difference of 0.31 degrees C. If the difference between blood flow and blood temperature of obese and normal weight people was not taken into account, the hand skin temperature of obese people was predicted with an average deviation of 1.42 degrees C. In conclusion, when modelling hand skin temperatures, it should be considered that regional skin temperature distribution differs in obese and normal weight people. PMID- 29037376 TI - The small heat shock protein Hsp27: Present understanding and future prospects. AB - Heat shock proteins are important for maintaining protein homeostasis and cell survival. Among different classes of highly conserved Hsps, low molecular weight Hsps (sHsps) have significant place, particularly Hsp27, whose role has been demonstrated in wide range of biological processes, including development, immunity, diseases and therapy. In this review, the structure and functions of Hsp27 and related genes, their role in different cellular processes as well as in stress tolerance, is highlighted. PMID- 29037377 TI - Thermographic imaging in sports and exercise medicine: A Delphi study and consensus statement on the measurement of human skin temperature. AB - The importance of using infrared thermography (IRT) to assess skin temperature (tsk) is increasing in clinical settings. Recently, its use has been increasing in sports and exercise medicine; however, no consensus guideline exists to address the methods for collecting data in such situations. The aim of this study was to develop a checklist for the collection of tsk using IRT in sports and exercise medicine. We carried out a Delphi study to set a checklist based on consensus agreement from leading experts in the field. Panelists (n = 24) representing the areas of sport science (n = 8; 33%), physiology (n = 7; 29%), physiotherapy (n = 3; 13%) and medicine (n = 6; 25%), from 13 different countries completed the Delphi process. An initial list of 16 points was proposed which was rated and commented on by panelists in three rounds of anonymous surveys following a standard Delphi procedure. The panel reached consensus on 15 items which encompassed the participants' demographic information, camera/room or environment setup and recording/analysis of tsk using IRT. The results of the Delphi produced the checklist entitled "Thermographic Imaging in Sports and Exercise Medicine (TISEM)" which is a proposal to standardize the collection and analysis of tsk data using IRT. It is intended that the TISEM can also be applied to evaluate bias in thermographic studies and to guide practitioners in the use of this technique. PMID- 29037378 TI - L-Citrulline acts as potential hypothermic agent to afford thermotolerance in chicks. AB - Recently we demonstrated that L-citrulline (L-Cit) causes hypothermia in chicks. However, the question of how L-Cit mediates hypothermia remained elusive. Thus, the objective of this study was to examine some possible factors in the process of L-Cit-mediated hypothermia and to confirm whether L-Cit can also afford thermotolerance in young chicks. Chicks were subjected to oral administration of L-Cit along with intraperitoneal injection of a nitric oxide synthase (NOS) inhibitor, NG-nitro-l-arginine methyl ester HCl (L-NAME), to examine the involvement of NO in the process of hypothermia. Food intake and plasma metabolites were also analyzed after oral administration of L-Cit in chicks. To examine thermotolerance, chicks were orally administered with a single dose of L Cit (15mmol/10ml/kg body weight) or the same dose twice within a short interval of 1h (dual oral administration) before the exposure to high ambient temperature (35 +/- 1 degrees C) for 180min. Although the rectal temperature was reduced following administration of L-Cit, L-NAME caused a greater reduction. L-NAME reduced total NO2 and NO3 (NOx) in plasma, which confirmed its inhibitory effect on NO. A single oral administration of L-Cit mediated a persistent state of hypothermia for the 300min of the study without affecting food intake. It was further found that plasma glucose was significantly lower in L-Cit-treated chicks. Dual oral administration of L-Cit, but not a single oral administration, afforded thermotolerance without a significant change in plasma NOx in chicks. In conclusion, our results suggest that L-Cit-mediated hypothermia and thermotolerance may not be involved in NO production. L-Cit-mediated thermotolerance further suggests that L-Cit may serve as an important nutritional supplement that could help in coping with summer heat. PMID- 29037379 TI - Thermoregulatory behavior and orientation preference in bearded dragons. AB - The regulation of body temperature is a critical function for animals. Although reliant on ambient temperature as a heat source, reptiles, and especially lizards, make use of multiple voluntary and involuntary behaviors to thermoregulate, including postural changes in body orientation, either toward or away from solar sources of heat. This thermal orientation may also result from a thermoregulatory drive to maintain precise control over cranial temperatures or a rostrally-driven sensory bias. The purpose of this work was to examine thermal orientation behavior in adult and neonatal bearded dragons (Pogona vitticeps), to ascertain its prevalence across different life stages within a laboratory situation and its interaction with behavioral thermoregulation. Both adult and neonatal bearded dragons were placed in a thermal gradient and allowed to voluntarily select temperatures for up to 8h to observe the presence and development of a thermoregulatory orientation preference. Both adult and neonatal dragons displayed a non-random orientation, preferring to face toward a heat source while achieving mean thermal preferences of ~ 33-34 degrees C. Specifically, adult dragons were more likely to face a heat source when at cooler ambient temperatures and less likely at warmer temperatures, suggesting that orientation behavior counter-balances local selected temperatures but contributes to their thermoregulatory response. Neonates were also more likely to select cooler temperatures when facing a heat source, but required more experience before this orientation behavior emerged. Combined, these results demonstrate the importance of orientation to behavioral thermoregulation in multiple life stages of bearded dragons. PMID- 29037380 TI - Thermoconformity strategy in the freshwater turtle Hydromedusa tectifera (Testudines, Chelidae) in its southern distribution area. AB - Ectotherm species are not capable of generating metabolic heat; therefore, they present different strategies for regulating their body temperatures, ranging from a precise degree of thermoregulation to a passive thermoconformity with ambient temperatures. In reptiles, aerial basking is the most common mechanism for gaining heat. However, among aquatic reptiles, such as freshwater turtles, aquatic basking is also frequent. Hydromedusa tectifera is a turtle of exclusively aquatic and nocturnal habits widely distributed in South America. We studied the relationship between body temperature (Tb) of H. tectifera and its habitat, and explored the effects of sex, life stage and body size and mass on Tb. Fieldwork was conducted in two streams of a mountain area of central Argentina. We recorded cloacal temperature, size and mass of 84 turtles. We also determined individuals' sex and life stage (adult/juvenile). Regarding ambient temperatures, we measured water temperature on the surface (Tsurf) and at depth of turtle capture (Tdepth) and air temperature. Mean Tb was 18.58 degrees C (Min = 10.20 degrees C; Max = 25.70 degrees C). Tsurf and Tdepth were highly correlated. Multi-model analysis using Akaike criterion indicated that Tb was strongly associated with water temperature, whereas air temperature and body size and mass did not show a significant effect. There was also no effect of turtle sex or life stage on Tb. Our results indicate that H. tectifera is a thermoconformer and eurythermal species. A nocturnal pattern of activity and a fully aquatic lifestyle are suggested as determinant factors. PMID- 29037381 TI - Dietary supplementation of enzymatically treated Artemisia annua could alleviate the intestinal inflammatory response in heat-stressed broilers. AB - The study was undertaken to evaluate the effects of enzymatically treated Artemisia annua (EA) on the intestinal inflammatory response of heat-stressed broilers. A total of 144 male Arbor Acres broilers aged 21 days were randomly divided into 3 groups with 6 replicates per group and 8 broilers in each replicate. The 3 treatment groups were as follows: the control group, in which broiler chickens were raised at 22 +/- 1 degrees C and fed basal diets, the heat stress (HS) and HS-EA groups, in which broiler chickens were raised at 34 +/- 1 degrees C for 8h (0900-1700h) and 22 +/- 1 degrees C for 16h, and fed basal diets supplemented with 0 or 1g/kg EA, respectively. From 22 to 41 days, the heat treatment lasted for 20 consecutive days. Compared with the control group, HS increased the activity of plasma diamine oxidase (P < 0.05) and the concentration of intestinal interleukin-1beta, and up-regulated (P < 0.05) the mRNA expression of intestinal interleukin-1beta, interleukin-6, interferon-gamma, toll-like receptor 4 and heat shock protein 70, down-regulated (P < 0.05) jejunal zonula occludens-1 and ileal occluding mRNA abundances and intestinal interleukin-10 at both protein and transcriptional levels. However, EA treatment significantly decreased (P < 0.05) plasma diamine oxidase activity, the mRNA expression of heat shock protein 70, toll-like receptor 4, interleukin-6, interleukin-1beta and interferon-gamma in intestine of heat-stressed broilers, whereas upregulated (P < 0.05) the mRNA expression of ileal occluding, jejunal zonula occludens-1 and occluding. In addition, both protein and transcriptional levels of interleukin-10 in jejunum and ileum were increased (P < 0.05) by EA treatment in the HS group. In conclusion, dietary EA supplementation could alleviate the intestinal inflammatory response, and improve the intestinal barrier function in broilers during the heat stress period. PMID- 29037382 TI - Influences of dietary lipid and temperature on growth, fat deposition and lipoprotein lipase expression in darkbarbel catfish (Pelteobagrus vachellii). AB - Darkbarbel catfish (Pelteobagrus vachellii) is an important freshwater fish in China. Water temperature greatly influences the absorption and utilization of dietary lipid by fish. Response values (including growth, hepatic fat deposition, and gene expression) for darkbarbel catfish mediated by two factors (water temperature 20-34 degrees C; dietary lipid level 2-17%) were the focus of this study. The relationship between the two factors and the response values was evaluated by the response surface method using the central composite design. The experiment was conducted under laboratory conditions and lasted for seven weeks. A total of 975 experimental fish (average weight 11.75 +/- 0.17g) were selected and placed in 39 plastic tanks. The results showed that the linear effects of lipid level on feed conversion rate (FCR), hepatopancreas somatic index (HSI), hepatic triglycerides (TG), cholesterol (TC), and lipoprotein lipase (LPL) gene expression were significant (P < 0.05). The linear effects of water temperature on specific growth rate (SGR), HSI, TC level, and LPL mRNA expression were significant (P < 0.05). The quadratic effects of water temperature and lipid level on SGR and FCR were significant (P < 0.05). Low water temperature and low lipid diets significantly inhibited growth, increased HSI, and reduced hepatic TG and TC levels, and LPL mRNA expression. The adjusted R2 values for the SGR, FCR, HSI, TC, TG, and LPL mRNA regression models were 0.77, 0.85, 0.62, 0.73, 0.85, and 0.91, respectively. The optimal combination of water temperature and dietary lipid level was 27.5 degrees C and 9.2%, at which the greatest growth and FCR were 2.13%.d-1 and 1.31 respectively, with desirability of 0.904. These results indicated that water temperature may mediate the requirement and utilization of dietary lipid, and intervene in hepatic fat deposition. The results of this study can be used to help optimize the culture conditions of darkbarbel catfish. PMID- 29037383 TI - Regulation of pyruvate dehydrogenase (PDH) in the hibernating ground squirrel, (Ictidomys tridecemlineatus). AB - Pyruvate dehydrogenase (PDH) is a vital regulatory enzyme that catalyzes the conversion of pyruvate into acetyl-CoA and connects anaerobic glycolysis to aerobic TCA cycle. Post-translational inhibition of PDH activity via three serine phosphorylation sites (pS232, pS293, and pS300) regulate the metabolic flux through the TCA cycle, decrease glucose utilization, and facilitate lipid metabolism during times of nutrient deprivation. As metabolic readjustment is necessary to survive hibernation, the purpose of this study was to explore the post-translational regulation of pyruvate dehydrogenase and the expression levels of four mitochondrial serine/threonine kinases (PDHKs), during torpor-arousal cycles in liver, heart, and skeletal muscle of 13-lined ground squirrels. A combination of Luminex multiplex technology and western immunoblotting were used to measure the protein expression levels of total PDH, three phosphorylation sites, S232, 293, 300, and the expression levels of the corresponding PDH kinases (PDHK1-4) during euthermic control, entrance, late torpor, and interbout arousal. Liver and heart showed strong inhibitory PDH regulation, indicating a possible decrease in glucose utilization and a possible preference for beta-oxidation of fatty acids during periods of low temperature and starvation. On the contrary, skeletal muscle showed limited PDH regulation via phosphorylation, possibly due to alternate controls. Phosphorylation of PDH may play an important role in regulating aerobic and anaerobic metabolic responses during hibernation in the 13 lined ground squirrel. PMID- 29037384 TI - A test of the thermal coadaptation hypothesis with ultimate measures of fitness in flour beetles. AB - Whole-organism performance of ectotherms depends on body temperature, which is tightly linked to environmental temperatures. Individuals attempting to optimize fitness must thus select appropriate temperatures. The thermal coadaptation hypothesis posits that To for traits closely linked to fitness should match temperatures selected by a species (Tset) and should coevolve with Tset. To may mismatch Tset if the thermal reaction norm for fitness is asymmetric. In this study, we examined six traits related to fitness in red and in confused flour beetles (Tribolium castaneum and T. confusum, respectively), including longevity, lifetime reproductive success, reproductive rate, and development time at four temperatures between 23 and 32 degrees C. For reproductive traits, To matched Tset whereas for longevity To was lower than Tset. Tribolium species have a strongly r-selected life history strategy, therefore reproductive traits are likely more tightly linked to fitness than longevity due to high predation rates at early life stages. We therefore provide support for the thermal coadaptation hypothesis for reproductive traits that are tightly linked to fitness. Our results highlight the importance of knowing the relationships of traits to fitness when studying thermal physiology. PMID- 29037385 TI - Temperature-dependent development of diapausing larvae of Chilo partellus (Swinhoe) (Lepidoptera: Crambidae). AB - Temperature-dependent development rate, percent diapause induction (hibernation at low temperature and aestivation at high temperature), and survival of diapausing larvae of Chilo partellus (Swinhoe, 1885) were examined on 13 constant temperatures ranging from 8 to 40 degrees C. Development of hibernating and aestivating larvae occurred from 10 to 25 degrees C and 27-38 degrees C, respectively. However, no development occurred at 8 degrees C and 40 degrees C. To determine actual thermal conditions that affect development and trigger both kind of diapause (hibernation and aestivation), various thermal parameters were estimated by fitting the development rate data to two linear (Ordinary equation and Ikemoto & Takai) models and thirteen non-linear models. The lower thermal thresholds (Tmin) for development of diapausing larvae of C. partellus were calculated as 9.60 degrees C and 10.29 degrees C using the ordinary linear model and Ikemoto & Takai model, respectively. Similarly, the thermal constants (K) estimated using the ordinary linear model was 333.33 degree-days and that estimated with Ikemoto & Takai model was 338.92 degree-days. Among the non-linear models, Lactin-2 followed by Lactin-1 were found to be the best as these models estimated the critical temperatures (Tmin, Tmax and Topt) similar to those of observed values. Conclusively, the Ikemoto & Takai linear model and Lactin-2 followed by Lactin-1 non-linear models are useful and efficient for describing temperature-dependent development and estimating the temperature thresholds of diapausing larvae of C. partellus. Our findings provided fundamental information for estimation of thermal requirement and temperature based development models for diapausing larvae of C. partellus. This information will be highly useful for predicting the occurrence, seasonal emergence, number of generations and population dynamics of C. partellus. PMID- 29037386 TI - Influence of temperature and exercise on growth performance, muscle, and adipose tissue in pacus (Piaractus mesopotamicus). AB - The aim of this study was to evaluate the effects of temperature and swimming exercise on fish growth in pacus (Piaractus mesopotamicus). Pacus weighing 0.9 - 1.9g and 2.7 - 4.2cm in standard length were cultivated at an initial density of 120 fish m-3 in 3 recirculation systems containing 6 water tanks at a volume of 0.5m3 each at temperatures of 24, 28 and 32 degrees C. At each temperature, three tanks were modified to generate exercise activity in the specimens and force the fish to swim under a current speed of 27.5cms-1. At the end of the experiment, the following metrics were evaluated: fish performance, morphometry (length, width, height and perimeter in different body positions), and the diameter and density of muscle and subcutaneous ventral adipose tissues. At 28 degrees C, pacus were both heavier and had greater weight gain after 240 days of cultivation. Additionally, exercise improved the feed conversion. An increase of 4 degrees C (30 degrees C) did not provide any improvement in the performance of the fish. However, swimming exercise improved the performance of pacus, providing increases of 38% and a 15% improvement in feed conversion. Both temperature and exercise influenced the body morphology (especially in the caudal region) and the cellularity of white and red muscle fibers and adipocytes. PMID- 29037387 TI - Dual phase lag bio-heat transfer during cryosurgery of lung cancer: Comparison of three heat transfer models. AB - The Pennes bio-heat model is based on Fourier's law of heat conduction, which assumed that a thermal signal propagate with infinite speed. This gives contradiction in physical situation. Also, the hyperbolic bio-heat model considers the micro scale response in time, but it does not explain the micro scale response in space. Therefore, to consider the thermal behaviour which is not captured by the Fourier's law and to take into account the microstructural effect in space, a dual phase lag (DPL) bio-heat conduction model would be advantageous. In this paper, a two dimensional DPL model is proposed to study the phase change heat transfer process during cryosurgery of lung cancer. The governing equations are solved numerically by enthalpy based finite difference method. The non-ideal behaviour of tissue and heat source terms, metabolism and blood perfusion are also considered. This study is made to examine the effects of phase lags in heat flux and temperature gradient on interface positions and temperature distribution during freezing process. A comparative study of DPL, parabolic and hyperbolic conduction models is thoroughly investigated. It is found that the phase lags of temperature gradient and heat flux have significant effect on interface positions and temperature distribution. PMID- 29037388 TI - Temperature-related differences in mitochondrial function among clones of the cladoceran Daphnia pulex. AB - This study assessed the thermal sensitivity of mitochondrial respiration in the small crustacean Daphnia pulex. More specifically, we wanted to determine if clones that inhabit different latitudes and habitats showed differences in the thermal sensitivity of their mitochondrial function. The experimental design included two clones from temperate environments (Fence from Ontario and Hawrelak from Alberta) and two clones from subarctic environments (A24 from Manitoba and K154 from Quebec). The integrated mitochondrial function was measured with high resolution respirometry following whole-animal permeabilization. Mitochondrial respiration was performed under six different temperatures (10, 15, 20, 25, 30, and 35 degrees C) in the clone Hawrelak and at two temperatures (10 and 20 degrees C) in the three other clones. In the clone Hawrelak, complexes I and II respiration showed higher sensitivity to temperature variation compared to complex IV respiration. Interestingly, the threshold plot showed no excess capacity of complex IV at 20 degrees C in this clone. The clones showed significant divergence in the ability to oxidize the complex I and complex IV substrates relative to the maximal oxidative phoshorylation capacity of mitochondria. More importantly, some of the clonal divergences were only detected under low assay temperatures, pointing toward the importance of this parameter in comparative studies. Future and more complex studies on clones from wider environmental gradients will help to resolve the link between mitochondrial function and adaptations of organisms to particular conditions, principally temperature. PMID- 29037389 TI - Lower critical temperature and cold-induced thermogenesis of lean and overweight humans are inversely related to body mass and basal metabolic rate. AB - It is colloquially stated that body size plays a role in the human response to cold, but the magnitude and details of this interaction are unclear. To explore the inherent influence of body size on cold-exposed metabolism, we investigated the relation between body composition and resting metabolic rate in humans at thermoneutrality and during cooling within the nonshivering thermogenesis range. Body composition and resting energy expenditure were measured in 20 lean and 20 overweight men at thermoneutrality and during individualized cold exposure. Metabolic rates as a function of ambient temperature were investigated considering the variability in body mass and composition. We observed an inverse relationship between body size and the lower critical temperature (LCT), i.e. the threshold where thermoneutrality ends and cold activates thermogenesis. LCT was higher in lean than overweight subjects (22.1 +/- 0.6 vs 19.5 +/- 0.5 degrees C, p < 0.001). Below LCT, minimum conductance was identical between lean and overweight (100 +/- 4 vs 97 +/- 3kcal/ degrees C/day respectively, p = 0.45). Overweight individuals had higher basal metabolic rate (BMR) explained mostly by the higher lean mass, and lower cold-induced thermogenesis (CIT) per degree of cold exposure. Below thermoneutrality, energy expenditure did not scale to lean body mass. Overweight subjects had lower heat loss per body surface area (44.7 +/ 1.3 vs 54.7 +/- 2.3kcal/ degrees C/m2/day, p < 0.001). We conclude that larger body sizes possessed reduced LCT as explained by higher BMR related to more lean mass rather than a change in whole-body conductance. Thus, larger individuals with higher lean mass need to be exposed to colder temperatures to activate CIT, not because of increased insulation, but because of a higher basal heat generation. Our study suggests that the distinct effects of body size and composition on energy expenditure should be taken in account when exploring the metabolism of humans exposed to cold. PMID- 29037390 TI - Effect of feeding Rumen-protected capsule containing niacin, K2SO4, vitamin C, and gamma-aminobutyric acid on heat stress and performance of dairy cows. AB - This study was conducted to evaluate the effects of supplemental rumen-protected capsule (RPC) on animal performance, serological indicators, and serum heat shock protein 70 (HSP70) of lactating Holstein cows under heat stress (HS). During summer months, 30 healthy multiparous lactating Holstein cows with a parity number of 3.1 +/- 0.44, 70 +/- 15 d in milk, an average body weight of 622 +/- 62kg, and an average milk yield of 32.28 +/- 0.96kg/d, were used. The cows were randomly allocated to two groups: a control group and an RPC-supplemented group (0.13373kg K2SO4, 0.02488kg vitamin C, 0.021148kg niacin, and 0.044784kggamma aminobutyric acid per cow). During the 42-d experiment, ambient air temperature and relative humidity inside and outside the barn were recorded hourly every day for the determination of temperature-humidity index (THI). Milk and blood samples were collected every week, and body weight and body condition scoring were measured on day 0. Based on the THI values, the animals had moderate HS. On day 42, the RPC group had lower HSP70, adrenocorticotropic hormone (P = 0.0001), lactate dehydrogenase (P = 0.0338), and IL-6 (P = 0.0724) levels than the control group, with no significant differences in creatine kinase, glucocorticoid, or IL 2 levels. Milk yield, energy-corrected milk, and dry matter intake were higher in RPC than in the control group (P = 0.0196). There were no significant differences in milk fat or daily protein levels between the two groups; however, daily protein and milk fat levels were higher in the RPC group than in the control group (P = 0.0114 and P = 0.0665, respectively). Somatic cell counts were no different between the two groups. In conclusion, RPC may alleviate HS and improve dairy cow performance. PMID- 29037391 TI - Intraspecific geographic variation in thermal limits and acclimatory capacity in a wide distributed endemic frog. AB - Intraspecific variation in physiological traits and the standard metabolic rate (SMR) is common in widely distributed ectotherms since populations at contrasting latitudes experiences different thermal conditions. The climatic variability hypothesis (CVH) states that populations at higher latitudes presents higher acclimation capacity than those at lower latitudes, given the wider range of climatic variability they experience. The endemic four-eyed frog, Pleurodema thaul is widely distributed in Chile. We examined the variation in maximum and minimum critical temperatures (CTmax and CTmin), preferred temperature (TPref), SMR and their acclimatory capacity in two populations from the northern and center of its distribution. All the traits are higher in the warmer population. The capacity for acclimation varies between traits and, with the exception of CTmax and TPref, it is similar between populations. This pattern could be explained by the higher daily thermal variability in desert environments, that increases plasticity to the levels found in the high latitude population. However, we found low acclimatory capacity in all physiological traits, of only about 3% for CTmin, 10% for CTmax and TPref, and 1% for SMR. Thus, despite the fact that Pleurodema thaul possess some ability to adjust thermal tolerances in response to changing thermal conditions, this acclimatory capacity seems to be unable to prevent substantial buffering when body temperatures rise. The low acclimatory capacity found for P. thaul suggests that this species use behavioral rather than physiological adjustments to compensate for environmental variation, by exploiting available micro-environments with more stable thermal conditions. PMID- 29037392 TI - Temperature selection by juvenile tuatara (Sphenodon punctatus) is not influenced by temperatures experienced as embryos. AB - Most reptiles thermoregulate to achieve body temperatures needed for biological processes, such as digestion and growth. Temperatures experienced during embryogenesis may also influence post-hatching growth rate, potentially through influencing post-hatching choice of temperatures. We investigated in laboratory settings whether embryonic temperatures (constant 18 degrees C, 21 degrees C and 22 degrees C) influence selected body temperatures (Tsel) of juvenile tuatara (Sphenodon punctatus), providing a possible mechanism for differences in growth rates. We found that incubation temperature does not influence Tsel. Although the average daily mean Tsel was 21.6 +/- 0.3 degrees C, we recorded individual Tsel values up to 33.5 degrees C in juvenile tuatara, which is higher than expected and above the panting threshold of 31-33 degrees C reported for adults. We found diel patterns of Tsel of juvenile tuatara, observing a general pattern of two apparent peaks and troughs per day, with Tsel being significantly lower around dawn and at 1500h than any other time. When comparing our results with other studies on tuatara there is a remarkable consistency in mean Tsel of ~ 21 degrees C across tuatara of different ages, sizes and acclimatization histories. The ability of juvenile tuatara to withstand a wide range of temperatures supports their former widespread distribution throughout New Zealand and warrants further investigation into their plasticity to withstand climate warming, particularly where they have choices of habitat and the ability to thermoregulate. PMID- 29037393 TI - Aerobic function in mitochondria persists beyond death by heat stress in insects. AB - The critical thermal maximum (CTmax) of insects can be determined using flow through thermolimit respirometry. It has been demonstrated that respiratory patterns cease and insects do not recover once the CTmax temperature has been reached. However, if high temperatures are maintained following the CTmax, researchers have observed a curious phenomenon whereby the insect body releases a large burst of carbon dioxide at a rate and magnitude that often exceed that of the live insect. This carbon dioxide release has been termed the post-mortal peak (PMP). We demonstrate here that the PMP is observed only at high temperatures, is oxygen-dependent, is prevented by cyanide exposure, and is associated with concomitant consumption of oxygen. We conclude that the PMP derives from highly active, aerobic metabolism in the mitochondria. The insect tracheal system contains air-filled tubes that reach deep into the tissues and allow mitochondria access to oxygen even upon organismal death. This unique condition permits the investigation of mitochondrial function during thermal failure in a manner that cannot be achieved using vertebrate organisms or in vitro preparations. PMID- 29037394 TI - Selection and inheritance of developmental variants of Propylea dissecta under thermal stress conditions. AB - The present study aims to understand the influence of two thermal extremes (15 degrees C and 35 degrees C) as thermal stressors on the selected line of developmental variants (slow and fast developers) in Propylea dissecta and to compare it with the response at the optimal temperature (27 degrees C). The ratio of slow and fast developers within an egg batch differed with thermal extremes irrespective of F1 and F15 generations. Adult body mass got depressed after selection for control slow developers at 15 degrees C while it got enhanced for selected fast developers at 35 degrees C. More selected slow developers were found at low temperature and more selected fast developers at high temperature. Selection probably favours the enhancement of immature survival and emergence ratio which was found to be highest for selected fast developers at 35 degrees C and selected slow developers at 15 degrees C. Population level disparity on thermal confliction was observed in ladybird post selection over several generations. Therefore, we put forward that exposure thermal extremes over a long duration, causes an adaptive differentiation in thermal responses of slow and fast developers. PMID- 29037395 TI - Diurnal temperature range and mortality in Urmia, the Northwest of Iran. AB - Diurnal Temperature Range (DTR) is a meteorological index which represents temperature variation within a day. This study assesses the impact of high and low values of DTR on mortality. Distributed Lag Non-linear Models combined with a quasi-Poisson regression model was used to assess the impact of DTR on cause, age and gender specific mortality, controlled for potential confounders such as long term trend of daily mortality, day of week effect, holidays, mean temperature, humidity, wind speed and air pollutants. As the effect of DTR may vary between the hot season (from May to October) and cold season (from November to April of the next year), we conducted analyses separately for these two seasons. In high DTR values (all percentiles), the Cumulative Relative Risk (CRR) of Non Accidental Death, Respiratory Death and Cardiovascular Death increased in the full year and hot season, and especially in lag (0-6) of the hot season. In the cold season and high DTR values (all percentiles), the CRR of Non-Accidental Death and Cardiovascular Death decreased, but the CRR of Respiratory Death increased. Although there was no clear significant effect in low DTR values. High values of DTR increase the risk of mortality, especially in the heat season, in Urmia, Iran. PMID- 29037396 TI - Maternal exposure to ambient air temperature during pregnancy and early childhood pneumonia. AB - BACKGROUND: Pneumonia has been widely recognized as the leading cause of death in children worldwide, but its etiology still remains unclear. OBJECTIVE: We examined the association between maternal exposure to ambient air temperature during pregnancy and lifetime pneumonia in the offspring. METHODS: We conducted a cohort study of 2598 preschool children aged 3-6 years in Changsha, China. The lifetime prevalence of pneumonia was assessed using questionnaire. We backwards estimated each child's exposure to air temperature during prenatal and postnatal periods. Multiple regression model was used to examine the association between childhood pneumonia and exposure to air temperature in terms of odd ratios (OR) and 95% confidence interval (CI). RESULTS: Prevalence of childhood pneumonia in Changsha was high up to 38.6%. We found that childhood pneumonia was significantly associated with prenatal exposure to air temperature, with adjusted OR (95% CI) = 1.77 (1.23-2.54) for an interquartile range (IQR) increase in temperature, particularly during the second trimester with adjusted OR (95% CI) = 2.26 (1.32-3.89). Boys are more susceptible to the risk of pneumonia due to air temperature than girls. We further observed that maternal exposure to extreme heat days during pregnancy increased the risk of pneumonia in the offspring. CONCLUSIONS: Maternal exposure to air temperature during pregnancy, particularly the second trimester, was associated with pneumonia in the children, providing the evidence for fetal origins of pneumonia. PMID- 29037397 TI - Development of the embryonic heat shock response and the impact of repeated thermal stress in early stage lake whitefish (Coregonus clupeaformis) embryos. AB - Lake whitefish (Coregonus clupeaformis) embryos were exposed to thermal stress (TS) at different developmental stages to determine when the heat shock response (HSR) can be initiated and if it is altered by exposure to repeated TS. First, embryos were subject to one of three different TS temperatures (6, 9, or 12 degrees C above control) at 4 points in development (21, 38, 60 and 70 days post fertilisation (dpf)) for 2h followed by a 2h recovery to understand the ontogeny of the HSR. A second experiment explored the effects of repeated TS on the HSR in embryos from 15 to 75 dpf. Embryos were subjected to one of two TS regimes; +6 degrees C TS for 1h every 6 days or +9 degrees C TS for 1h every 6 days. Following a 2h recovery, a subset of embryos was sampled. Our results show that embryos could initiate a HSR via upregulation of heat shock protein 70 (hsp70) mRNA at all developmental ages studied, but that this response varied with age and was only observed with a TS of +9 or +12 degrees C. In comparison, when embryos received multiple TS treatments, hsp70 was not induced in response to the 1h TS and 2h recovery, and a downregulation was observed at 39 dpf. Downregulation of hsp47 and hsp90alpha mRNA was also observed in early age embryos. Collectively, these data suggest that embryos are capable of initiating a HSR at early age and throughout embryogenesis, but that repeated TS can alter the HSR, and may result in either reduced responsiveness or a downregulation of inducible hsps. Our findings warrant further investigation into both the short- and long-term effects of repeated TS on lake whitefish development. PMID- 29037398 TI - Thermoregulation of male sheep of indigenous or exotic breeds in a tropical environment. AB - Climate change has intensified the frequency of heat waves in the world, thereby exposing farm animals to stressful conditions. For better productive performance it is important to identify the most resilient genotypes. Thus, our objective was to evaluate the thermoregulatory responses of rams of tropical indigenous (Morada Nova and Santa Ines) and exotic breeds (Dorper and Texel), by monitoring the environmental and physiological indicators related to heat tolerance. The experiment was carried out in a tropical climate region (Cwa), in Brazil, for twelve months, which comprised spring, summer, autumn and winter. Thirty-three rams were divided into groups: Morada Nova (MN; n=8, red-coat), Santa Ines (SI; n=9, black-coat), Dorper (DO; n=8, white-coat) and Texel (TX; n=8, white-coat). The microclimatic variables were monitored, and the THI and BGHI comfort indices were calculated. Coat thickness and body surface temperatures were measured monthly, and serum triiodothyronine-T3 measurements and complete blood tests were performed. The physiological variables were evaluated every fifteen days and skin micro-biopsies were performed in the summer and winter for histological evaluation. During the warmer seasons, the THI and BGHI reached values that indicated thermal discomfort. TX showed higher coat thickness throughout the year, increased physiological variables related to thermolysis, and reduced T3 (P < 0.05). The internal temperature was permanently lower in the MN, SI and DO (P < 0.05). The body surface temperatures were affected by the coat characteristics and wool length. Hematological parameters varied in the seasons with the highest thermal conditions (P < 0.05). The MN showed larger sweat glands, while the area occupied by the sweat glands was higher in the SI. The DO showed higher hair density in the summer and winter (P < 0.05). The results indicated that the MN, SI and DO breeds overcome the thermal challenge more easily throughout the seasons due to specific adaptive morphological and physiological characteristics. PMID- 29037399 TI - Comparison of heat strain recovery in different anti-heat stress clothing ensembles after work to exhaustion. AB - A hot environment combined with physically demanding tasks can subject workers to a higher risk of heat stress. A series of regulations and guidelines have been proposed to design appropriate anti-heat stress work uniform to reduce body heat strain. The present study aimed to examine heat strain recovery in different anti heat stress clothing ensembles after work to exhaustion in the heat. 10 healthy males performed intermittent treadmill running/walking to exhaustion, followed by 30min passive recovery sitting in a climatic chamber, which simulated the hot and humid outdoor environment (34 degrees C temperature, 60% relative humidity, 0.3m/s air velocity, and 450W/m2 solar radiation). The participants took part in five wear trials in counter-balanced order, including Sportswear, CIC Uniform, NEW Uniform, ICEBANK Cooling Vest, and NEW Cooling Vest, which have different levels of cooling capacity. Core temperature, skin temperature, heart rate, sweat loss, ratings of perceived exertion, and thermal sensations were measured throughout the entire heat exposure period. Physiological heat strain indices, including the physiological strain index (PhSI) and the perceptual strain index (PeSI), were used as a yardstick to quantify and compare the rate of recovery. Significantly lower physiological strain was observed in the newly developed NEW Uniform and NEW Cooling Vest groups compared with the commonly worn CIC Uniform group during recovery. At the end of the recovery period, participants in NEW Cooling Vest achieved the highest recovery (42.18% in PhSI and 81.08% in PeSI), followed by ICEBANK Cooling Vest, Sportswear, NEW Uniform, and CIC Uniform. The cooling capacity of anti-heat stress clothing ensembles and the recovery time significantly affect the rate of recovery in PhSI and PeSI, which may benefit the industry by formulating the appropriate work-rest schedule by considering the clothing effect. PMID- 29037400 TI - Effect of chronic low body temperature on feeding and gut passage in a plethodontid salamander. AB - Although feeding in some plethodontid salamander species, such as Dusky Salamanders (Desmognathus, family Plethodontidae), occurs at short-term (acute) low temperature below 5 degrees C, it is unknown whether feeding, digestion, and gut passage continue to occur during periods of long-term (chronic) low temperature. We performed a controlled laboratory experiment to examine the effect of several chronic low environmental temperatures on both feeding and gut passage in semiaquatic Spotted Dusky Salamanders (D. conanti). We quantified salamander feeding and defecation for different experimental groups maintained for many weeks at a constant temperature of 4, 7, 10, or 13 degrees C. Although feeding frequency, number of prey items consumed per feeding, and defecation frequency were significantly less for individuals at 4 degrees C than for individuals at 10 or 13 degrees C, salamanders continued to feed, defecate, and maintain body mass for 12 weeks at 4 degrees C. The ratio of the number of fecal pellets produced to the number of prey items consumed each week by individuals did not significantly decrease at 4 degrees C, which indicates gut passage was sustained at this temperature. Because both time between feeding and time between defecation were similarly affected by prolonged low temperature, the significant decrease in feeding frequency at 4 degrees C may depend, in part, on a decrease in digestive function and an extended time for gut passage at low temperature. We conclude that most individuals of D. conanti can feed, digest, and maintain body mass for several months at constant low temperature down to 4 degrees C. Our results support a growing body of data that indicate some plethodontid salamanders may acquire energy at environmental temperatures only a few degrees above freezing. PMID- 29037401 TI - Out on a limb: Thermal microenvironments in the tropical forest canopy and their relevance to ants. AB - Small, cursorial ectotherms like ants often are immersed in the superheated air layers that develop millimeters above exposed, insolated surfaces (i.e., the thermal boundary layer). We quantified the thermal microenvironments around tree branches in the tropical rainforest canopy, and explored the effects of substrate color on the internal body temperature and species composition of arboreal ants. Branch temperatures during the day (09:00-16:00) were hottest (often > 50 degrees C) and most variable on the upper surface, while the lowest and least variable temperatures occurred on the underside. Temperatures on black substrates declined with increasing distance above the surface in both the field and the laboratory. By contrast, a micro-scale temperature inversion occurred above white substrates. Wind events (ca. 2ms-1) eliminated these patterns. Internal temperatures of bodies of Cephalotes atratus workers experimentally heated in the laboratory were 6 degrees C warmer on white vs. black substrates, and 6 degrees C cooler than ambient in windy conditions. The composition of ant species foraging at baits differed between black-painted and unpainted tree branches, with a tendency for smaller ants to avoid the significantly hotter black surfaces. Collectively, these outcomes show that ants traversing canopy branches experience very heterogeneous thermal microenvironments that are partly influenced in predictable ways by branch surface coloration and breezy conditions. PMID- 29037402 TI - Thermal biology of eastern box turtles in a longleaf pine system managed with prescribed fire. AB - Fire can influence the microclimate of forest habitats by removing understory vegetation and surface debris. Temperature is often higher in recently burned forests owing to increased light penetration through the open understory. Because physiological processes are sensitive to temperature in ectotherms, we expected fire-maintained forests to improve the suitability of the thermal environment for turtles, and for turtles to seasonally associate with the most thermally-optimal habitats. Using a laboratory thermal gradient, we determined the thermal preference range (Tset) of eastern box turtles, Terrapene carolina, to be 27-31 degrees C. Physical models simulating the body temperatures experienced by turtles in the field revealed that surface environments in a fire-maintained longleaf pine forest were 3 degrees C warmer than adjacent unburned mixed hardwood/pine forests, but the fire-maintained forest was never of superior thermal quality owing to wider Te fluctuations above Tset and exposure to extreme and potentially lethal temperatures. Radiotracked turtles using fire-managed longleaf pine forests maintained shell temperatures (Ts) approximately 2 degrees C above those at a nearby unburned forest, but we observed only moderate seasonal changes in habitat use which were inconsistent with thermoregulatory behavior. We conclude that turtles were not responding strongly to the thermal heterogeneity generated by fire in our system, and that other aspects of the environment are likely more important in shaping habitat associations. PMID- 29037403 TI - Analytical expressions for estimating endurance time and glove thermal resistance related to human finger in cold conditions. AB - Frostbite is considered the severest form of cold injury and can lead to necrosis and loss of peripheral appendages. Therefore, prediction of endurance time of limb's tissue in cold condition is not only necessary but also crucial to estimate cold injury intensity and to choose appropriate clothing. According to the previous work which applied a 3-D thermal model for human finger to analyze cold stress, in this study, an expression is presented for endurance time in cold conditions to prevent cold injury. A formula is also recommended to select a proper glove with specific thermal resistance based on the ambient situation and cold exposure time. By employing linear extrapolation and real physical conditions, the proposed formulas were drawn out from numerical simulation. Analytical results show good agreement with numerical data. The used numerical data had been also validated with experimental data existed in the literature. Furthermore, the effect of different parameters such as glove thermal resistance and ambient temperature is investigated analytically. PMID- 29037404 TI - Do the ornamented osteoderms influence the heat conduction through the skin? A finite element analysis in Crocodylomorpha. AB - In order to assess the implication of the crocodylomorph ornamented osteoderms on the skin conduction during basking, we have performed three dimensional modeling and finite element analyses on a sample which includes both extant dry bones and well-preserved fossils tracing back to the Early Jurassic. In purpose to reveal the possible implication of the superficial ornamentation on the osteoderm heat conduction, we repeated the simulation on an equivalent set of smoothed 3D modeled osteoderms. The comparison of the results evidenced that the presence of the apical sculpture has no significant impact on the osteoderm global conduction. Furthermore, as we also aimed to assess the influence of the inner bone porosity on the osteoderm conduction, we modified the heat equation parameters so that the 3D-modeled osteoderms successively score the compact and the cancellous bone properties (i.e. mass density, heat capacity, thermal conductivity and thermal diffusivity). Finally, we repeated the analyses using the soft-dermis properties which lead to outline that neither the degree of porosity nor the presence of the osteoderms (in itself) significantly modifies the heat conduction through the crocodylomorph skin. Consequently, as hypothesized by previous authors, if the dermal shield happens to be involved into heat capture during basking for crocodylians, this process must mainly rely on a convective effect based on the osteoderm relative degree of vascularization. This last assumption could thus explain why the crocodylians which produce little metabolic heat would carry an entire vascularized osteoderm shield. PMID- 29037405 TI - Relevance of body size and shell colouration for thermal absorption and heat loss in white garden snails, Theba pisana (Helicidae), from Northern France. AB - The internal temperature of land snails depends on environmental factors, such as exposure to electromagnetic radiation and airflow as well as biotic factors including shell size, shell colouration and thickness or the resting position of the snail. In controlled field experiments, we quantified heating by thermal absorption of light and airflow-induced heat loss in the white garden snail, Theba pisana, from Normandy, France. Heating experiments revealed a significant positive relation of the internal body temperature with illumination period, shell temperature and air temperature at different times of day. The size of the snails was negatively related with both of the given illumination times: smaller animals heated up stronger than larger ones. The temperature at the surface of the shell significantly depended on the illumination period and the time of day. An AIC-based quality assessment of multiple linear modelling showed that, for explaining both shell surface and internal temperature of the soft body, several factors, i.e., exposure time, daytime, shell size and colouration contributed to the best models, respectively. Similarly, heat loss of the soft body after and during exposure of the snails to sunlight by a constant airflow depended on the initial body temperature, shell size, colouration and ambient air temperature. Our study revealed also the importance of both shell size and colouration for the loss of body temperature under natural conditions: small and banded animals that had heated up to temperatures above 30 degrees C cooled down faster than large and un-banded ones. PMID- 29037406 TI - Monitoring changes in body surface temperature associated with treadmill exercise in dogs by use of infrared methodology. AB - The aim of this study was to evaluate the influence of moderate treadmill exercise session on body surface and core temperature in dog measured by means of two infrared instruments. Ten Jack Russell Terrier/Miniature Pinscher mixed-breed dogs were subjected to 15min of walking, 10min of trotting and 10min of gallop. At every step, body surface temperature (Tsurface) was measured on seven regions (neck, shoulder, ribs, flank, back, internal thigh and eye) using two different methods, a digital infrared camera (ThermaCam P25) and a non-contact infrared thermometer (Infrared Thermometer THM010-VT001). Rectal temperature (Trectal) and blood samples were collected before (T0) and after exercise (T3). Blood samples were tested for red blood cell (RBC), hemoglobin concentration (Hb) and hematocrit (Hct). A significant effect of exercise in all body surface regions was found, as measured by both infrared methods. The temperature obtained in the eye and the thigh area were higher with respect to the other studied regions throughout the experimental period (P<0.0001). RBC, Hb, Hct and Trectal values were higher at T3 (P<0.05). Statistically significant higher temperature values measured by infrared thermometer was found in neck, shoulder, ribs, flank, back regions respect to the values obtained by digital infrared camera (P<0.0001). The results obtained in this study showed that both internal and surface temperatures are influenced by physical exercise probably due to muscle activity and changes in blood flow in dogs. Both infrared instruments used in this study have proven to be useful in detecting surface temperature variations of specific body regions, however factors including type and color of animal hair coat must be taken into account in the interpretation of data obtained by thermography methodology. PMID- 29037407 TI - Serum concentrations of free amino acids in growing pigs exposed to diurnal heat stress fluctuations. AB - In areas where the ambient temperature (AT) is above the thermo neutral (TN) zone of pigs, significant changes within a 24-h period occur, differently affecting the availability of amino acids (AA) within the same day. An experiment was conducted to analyze the serum concentrations (SC) of free AA in pigs exposed to diurnal variations in AT. Six pigs (27.1 +/-1.3kg body weight) implanted with a thermometer to register the body temperature (BT) at 15-min intervals were used. Blood samples were collected on the last 3 d of the 14-d study, at 0700h (lowest AT), 1200h (mild HS), and 1600h (severe HS). The pigs received 1.2kg/d of an AA supplemented, wheat-soybean meal diet, in two equal meals (0700 and 1900h). The AT and BT, recorded at 0700, 1200, and 1600h was: 30.6, 38.6, 41.1 degrees C, and 38.2, 39.5, 40.3 degrees C, respectively. The BT was significantly correlated (P < 0.001) with the AT. The SC (MUM/mL) of Ile, Lys, Met, Val, Ala, Asn, and Pro were higher (P <= 0.01); Arg, Phe, Glu, and Tyr tended to be higher (P <= 0.10); but Cys was lower (P < 0.05) at 1200h than at 0700h. Lys was higher, Cys and Tyr were lower (P < 0.05), and Ile and Val tended to be higher (P <= 0.10) at 1600h than at 0700h. Serum Arg, Ile, Phe, Ala, Asn, Gln, Pro, Ser, and Tyr were lower (P < 0.05), and Leu and Val tended to be lower at 1600h than at 1200h. These data demonstrate that AT directly alters the BT of pigs, and that diurnal variations in AT differently affect their SC and availability of AA for growth. PMID- 29037408 TI - Epigenetic control of cyp19a1a expression is critical for high temperature induced Nile tilapia masculinization. AB - In fish species with temperature-dependent sex determination (TSD) or genotypic sex determination plus temperature effects (GSD + TE), temperature can either affect sex differentiation or determine the sex. However, it is unknown if epigenetic control of cyp19a1a expression is critical for high temperature induced masculinization in the freshwater fish Nile tilapia. We analyzed the cyp19a1a DNA methylation levels in three age groups and found that they were lower in females than in males. At 8 months of age, males had DNA methylation levels of the cyp19a1a promoter that were almost twice as high as those of females. Exposure to high temperatures increased the cyp19a1a promoter DNA methylation levels from 30.87 +/- 4.56% to 48.34 +/- 0.92% (P = 0.035) in females and from 50.33 +/- 7.38% to 51.66 +/- 4.75% in males (P = 0.867). The increases in the cyp19a1a promoter DNA methylation levels were associated with the mRNA expression levels and might play a role in promoting gonadal differentiation in high temperature induced group females toward the male pathway. Western blot analysis revealed that the cyp19a1a protein expression levels in females significantly declined after high temperature treatment; only a slight decline was recorded in male fish. These results reveal that epigenetic control of cyp19a1a mRNA and protein expression is related to the environmental temperature and sex ratios in fish with TSD or GSD + TE. PMID- 29037409 TI - Thermotolerance, health profile and cellular expression of HSP90AB1 in Nguni and Boran cows raised on natural pastures under tropical conditions. AB - Boran (n=15) and Nguni (n=15) cows were used in a study to determine the effect of breed, age and coat colour on the concentration of heat shock protein 90 (HSP90AB1), physiological rectal and skin temperature, and markers of health. The cows were exposed to summer heat stress and Boran cows had higher significant (P<0.05) skin temperature (35.1+/-0.42 degrees C) as compared to the Nguni cows (36.0+/-0.38 degrees C). Nguni cows had higher body thermal gradients than the Boran cows. Boran cows had thicker skin (P<0.05) and longer hairs (24.3+/-2.26mm) than their Nguni counterparts (20.2+/-2.00mm). The HSP90AB1 concentration was increased in Boran cows, although breed had no significant (P>0.05) influence. Significantly (P<0.05) high urea and total cholesterol was recorded in Boran cows. Coat colour had a significant (P<0.05) effect on the weight and rectal temperature of the study animals. Coat colour and age had no significant effect (P>0.05) on the concentration of HSP90AB1, although older cows (>=9 years) had higher concentrations (5.4+/-1.29ng/ml). Age had a significant (P<0.05) effect on packed cell volume, neutrophil/lymphocyte, urea, total protein and gamma-glutamyl transferase whereas cows with >=9 years had more concentrations than young ones. Age significantly (P<0.05) influenced hair length, skin temperature and the thermal gradients. Breed was positively correlated (P<0.001) to coat colour, age, body condition score, weight and temperature humidity index while negatively correlated to urea and total cholesterol. It was concluded that Nguni cows were more adaptable to hot environments than the Boran cows as the latter were unable to balance thermal load between their bodies and the environment. PMID- 29037410 TI - Heat adaptation from regular hot water immersion decreases proinflammatory responses, HSP70 expression, and physical heat stress. AB - Hot-water immersion (HWI) is a type of thermal therapy for treating various diseases. In our study, the physiological responses to occasional and regular HWI have been explored. The rats were divided into a control group, occasional group (1D), and regular group (7D). The 1D and 7D groups received 42 degrees C during 15mins HWI for 1 and 7 days, respectively. The blood samples were collected for proinflammatory cytokines examinations, the heart, liver and kidney were excised for subsequent IHC analysis to measure the level of heat shock protein 70 (HSP70). The results revealed that the body temperature increased significantly during HWI on Day 3 and significantly declined on Days 6 and 7. For the 7D group, body weight, heart rate, hematocrit, platelet, osmolarity, and lactate level were lower than those in the 1D group. Furthermore, the levels of granulocyte counts, tumor necrosis factor-alpha, and interleukin-6 were lower in the 7D group than in the 1D group. The induction of HSP70 in the 1D group was higher than in the other groups. Physiological responses to occasional HWI are disadvantageous because of heat stress. However, adaptation to heat from regular HWI resulted in decreased proinflammatory responses and physical heat stress. PMID- 29037411 TI - Thermal adaptation in North American cicadas (Hemiptera: Cicadidae). AB - We determine and summarize the thermal responses for 118 species and subspecies of North American cicadas representing more than 50 years of fieldwork and experimentation. We investigate the role that habitat and behavior have on the thermal adaptation of the North American cicadas. There are general patterns of increasing thermal responses in warmer floristic provinces and increasing maximum potential temperature within a habitat. Altitude shows an inverse relationship with thermal responses. Comparison of thermal responses of species emerging early or late in the season within the same habitat show increases in the thermal responses along with the increasing environmental temperatures late in the summer. However, behavior, specifically the use of endothermy as a thermoregulatory strategy, can influence the values determined in a particular habitat. Subspecies generally do not differ in their thermal tolerances and thermal tolerances are consistent within a species over distances of more than 7600km. PMID- 29037412 TI - Re-evaluating the diets of Morotopithecus bishopi and Afropithecus turkanensis: An anterior dentognathic perspective. AB - Afropithecus turkanensis (17-17.5 Ma; Kalodirr, Buluk, Locherangan, Moruorot, Nabwal Hills; Kenya) and Morotopithecus bishopi (20.6 Ma; Moroto II; Uganda) are both large-bodied catarrhines from the early Miocene of eastern Africa with relatively primitive cranial and postcanine dental morphology. They are primarily differentiated by a temporal separation of ~3.6 million years and by postcranial samples suggesting that M. bishopi was capable of orthograde postures and below branch arboreality, while A. turkanensis was most likely a pronograde quadruped. Several researchers dispute the validity of the postcranial and dating evidence and argue that M. bishopi and A. turkanensis may be congeneric or even conspecific. Although A. turkanensis possesses a derived suite of specialized anterior dentognathic characters that are functionally convergent with extant pitheciins and associated with sclerocarp foraging and maxillary canine dietary function, a similar analysis of M. bishopi anterior dentognathic anatomy is presently lacking. The current study addresses this shortcoming via a detailed morphometric analysis of relevant A. turkanensis and M. bishopi specimens preserving the anterior palate, maxillary canines and incisors. Results indicate that the anterior dentognathic morphologies of A. turkanensis and M. bishopi are distinct and represent significantly dissimilar feeding adaptations. Specifically, M. bishopi lacks the elongated and anteriorly narrow premaxilla, lateral incisors that are more posterior and mesially positioned relative to the central incisors, and pronounced yet evenly distributed mesial curvature of the maxillary canine that are shared by A. turkanensis and extant pitheciins. Given that A. turkanensis anterior dentognathic morphology is functionally convergent with extant pitheciins to the exclusion of M. bishopi, it is likely that M. bishopi and A. turkanensis have dissimilar feeding adaptations. Although a systematic analysis is required to verify these species at the generic and species level, the absence of any substantial morphological similarity in their anterior dentognathic anatomy is most consistent with the interpretation that M. bishopi and A. turkanensis represent, at the least, different species. PMID- 29037413 TI - Extant ape dental topography and its implications for reconstructing the emergence of early Homo. AB - Dental topography reflects diet accurately in several extant and extinct mammalian clades. However, dental topographic dietary reconstructions have high success rates only when closely related taxa are compared. Given the dietary breadth that exists among extant apes and likely existed among fossil hominins, dental topographic values from many species and subspecies of great apes are necessary for making dietary inferences about the hominin fossil record. Here, we present the results of one metric of dental topography, Dirichlet normal energy (DNE), for seven groups of great apes (Pongo pygmaeus pygmaeus, Pan paniscus, Pan troglodytes troglodytes and schweinfurthii, Gorilla gorilla gorilla, Gorilla beringei graueri and beringei). Dirichlet normal energy was inadequate at differentiating folivores from frugivores, but was adequate at predicting which groups had more fibrous diets among sympatric African apes. Character displacement analyses confirmed there is substantial dental topographic and relative molar size (M1:M2 ratio; length, width, and area) divergence in sympatric apes when compared to their allopatric counterparts, but character displacement is only present in relative molar size when DNE is also considered. Presence of character displacement is likely due to indirect competition over similar food resources. Assuming similar ecological conditions in the Plio Pleistocene, the derived masticatory apparatuses of the robust australopiths and early Homo may be due to indirect competition over dietary resources between the taxa, causing dietary niche partitioning. Our results imply that dental topography cannot be used to predict dietary categories in fossil hominins without consideration of ecological factors, such as dietary and geographic overlap. In addition, our results may open new avenues for understanding the community compositions of early hominins and the formation of specific ecological niches among hominin taxa. PMID- 29037414 TI - Chimpanzee vertebrate consumption: Savanna and forest chimpanzees compared. AB - There is broad consensus among paleoanthropologists that meat-eating played a key role in the evolution of Homo, but the details of where, when, and why are hotly debated. It has been argued that increased faunivory was causally connected with hominin adaptation to open, savanna habitats. If savanna-dwelling chimpanzees eat meat more frequently than do forest chimpanzees, it would support the notion that open, dry, seasonal habitats promote hunting or scavenging by hominoids. Here we present observational and fecal analysis data on vertebrate consumption from several localities within the dry, open Ugalla region of Tanzania. Combining these with published fecal analyses, we summarize chimpanzee vertebrate consumption rates, showing quantitatively that savanna chimpanzee populations do not differ significantly from forest populations. Compared with forest populations, savanna chimpanzees consume smaller vertebrates that are less likely to be shared, and they do so more seasonally. Analyses of chimpanzee hunting that focus exclusively on capture of forest monkeys are thus difficult to apply to chimpanzee faunivory in open-country habitats and may be misleading when used to model early hominin behavior. These findings bear on discussions of why chimpanzees hunt and suggest that increases in hominin faunivory were related to differences between hominins and chimpanzees and/or differences between modern and Pliocene savanna woodland environments. PMID- 29037415 TI - Dental phenotypic shape variation supports a multiple dispersal model for anatomically modern humans in Southeast Asia. AB - The population history of anatomically modern humans (AMH) in Southeast Asia (SEA) is a highly debated topic. The impact of sea level variations related to the Last Glacial Maximum (LGM) and the Neolithic diffusion on past population dispersals are two key issues. We have investigated competing AMH dispersal hypotheses in SEA through the analysis of dental phenotype shape variation on the basis of very large archaeological samples employing two complementary approaches. We first explored the structure of between- and within-group shape variation of permanent human molar crowns. Second, we undertook a direct test of competing hypotheses through a modeling approach. Our results identify a significant LGM-mediated AMH expansion and a strong biological impact of the spread of Neolithic farmers into SEA during the Holocene. The present work thus favors a "multiple AMH dispersal" hypothesis for the population history of SEA, reconciling phenotypic and recent genomic data. PMID- 29037416 TI - The diet of open-habitat chimpanzees (Pan troglodytes schweinfurthii) in the Issa valley, western Tanzania. AB - Comparative data on the diets of extant primates inform hypotheses about hominin resource use. Historically, data describing chimpanzee diets stem primarily from forest-dwelling communities, and we lack comparative data from chimpanzees that live in mosaic habitats that more closely resemble those reconstructed for Plio Pleistocene hominins. We present data on the diet of a partially-habituated community of open habitat chimpanzees (Pan troglodytes schweinfurthii) from the Issa valley, western Tanzania, collected over a four-year period. Based mostly on macroscopic faecal analysis, Issa chimpanzees consumed a minimum of 69 plant species. There was no relationship between plant consumption and either fruit availability or feeding tree density; the most frequently consumed plant species were found in riverine forests, with woodland species consumed more frequently during the late dry season. We conclude by contextualising these findings with those of other open-habitat chimpanzee sites, and also by discussing how our results contribute towards reconstructions of early hominin exploitation of mosaic landscapes. PMID- 29037417 TI - Establishment of occupation chronicles in Grotte Mandrin using sooted concretions: Rethinking the Middle to Upper Paleolithic transition. AB - Soot marks, witnesses of past human activities, can sometimes be noticed in concretions (speleothem, travertine, carbonated crust, etc.) formed in cavities. We demonstrate here that these deposits, generally ignored in archaeological studies, turned out to be a perfectly suitable material for micro-chronological study of hominin activities in a site. At the Grotte Mandrin (Mediterranean France), thousands of clastic fragments from the rock walls were found in every archaeological level of the shelter. Calcareous crusts containing soot deposits are recorded on some of their surfaces. They appear in thin section as thin black laminae. Microscopic observation of these crusts revealed that they kept track of many occupations. We show that is possible to link them with the archaeological units identified during the excavation. Minimum Number of Occupations (MNO) can be built out of these sooted crusts. MNO are usually high and attest to the cumulative nature of each archaeological unit. They are witnesses of each occupation of hominin groups in each archaeological level of the cave. This study also shows that, in Grotte Mandrin, a very short time separates the first Middle/Upper Paleolithic transitional groups' occupations from those of the last Mousterians. The research perspectives on soot deposits are diversified and raise the possibility of studying multiple aspects of past human life, and in this case, to rethink the Middle/Upper Paleolithic transition, with an unmatched temporal resolution. Sooted concretion analysis provides high temporal resolution archaeology. There is a real possibility of extending this study with chronological implications to cavities of all ages and areas. PMID- 29037419 TI - [The pathologist 2.0.] PMID- 29037418 TI - Was Mesopithecus a seed eating colobine? Assessment of cracking, grinding and shearing ability using dental topography. AB - Extant colobine monkeys have been historically described as specialized folivores. However, reports on both their behavior and dental metrics tend to ascribe a more varied diet to them. In particular, several species, such as Pygathrix nemaeus and Rhinopithecus roxellana, are dedicated seasonal seed eaters. They use the lophs on their postcanine teeth to crack open the hard endocarp that protects some seeds. This raises the question of whether the bilophodont occlusal pattern of colobine monkeys first evolved as an adaptation to folivory or sclerocarpic foraging. Here, we assess the sclerocarpic foraging ability of the oldest European fossil colobine monkey, Mesopithecus. We use computed microtomograpy to investigate the three-dimensional (3D) dental topography and enamel thickness of upper second molars ascribed to the late Miocene species Mesopithecus pentelicus from Pikermi, Greece. We compare M. pentelicus to a sample of extant Old World monkeys encompassing a wide range of diets. Furthermore, we combine classic dietary categories such as folivory with alternative categories that score the ability to crack, grind and shear mechanically challenging food. The 3D dental topography of M. pentelicus predicts an ability to crack and grind hard foods such as seeds. This is consistent with previous results obtained from dental microwear analysis. However, its relatively thin enamel groups M. pentelicus with other folivorous cercopithecids. We interpret this as a morphological trade-off between the necessity to avoid tooth failure resulting from hard food consumption and the need to process a high amount of leafy material. Our study demonstrates that categories evaluating the cracking, grinding or shearing ability, traditional dietary categories, and dental topography combine well to make a powerful tool for the investigation of diet in extant and extinct primates. PMID- 29037420 TI - Discussion of: "Hospital admission unnecessary for successful uncomplicated radiographic reduction of pediatric intussusception". PMID- 29037422 TI - Digestive migration and spontaneous expulsion of a Montgomery salivar derivation tube. PMID- 29037421 TI - Discussion of: "The success of sentinel lymph node biopsy after neoadjuvant therapy: A single institution review". PMID- 29037423 TI - Unique ECG presentations and clinical management of a symptomatic LQT2 female carrying a novel de novo KCNH2 mutation. AB - A 26-year-old woman, 12 days in postpartum, developed recurrent syncope and cardiac arrest. Her ECG revealed QT-prolongation associated with LQT2-specific T U wave patterns, T wave alternans, long QT-dependent torsade de pointes (TdP) and ventricular fibrillation (VF). She also had intermittent LBBB (80bpm) on alternate beats and RBBB at sinus tachycardia (113bpm). Family genotyping revealed a novel de novo missense mutation G604C of KCNH2. Propranolol slowed heart rate and further prolonged QT interval (610ms) that caused TdP recurrence. Mexiletine combined with magnesium and potassium supplements prevented TdP/VF recurrence. This patient has remained event-free after 9-month follow-up. PMID- 29037424 TI - Do the arrhythmic electrocardiographic parameters merely effected by drugs or by anything influencing myocytes? PMID- 29037425 TI - Interleukin-32 may contribute to increased risk of cardiovascular disease in patients with hidradenitis suppurativa. PMID- 29037426 TI - [Cutaneous lesions secondary to hijama (wet cupping)]. PMID- 29037427 TI - [Fibroepithelioma of Pinkus: Correlation between dermatopathology and dermoscopy]. PMID- 29037428 TI - [Lymphomatoid papulosis]. PMID- 29037429 TI - [Photo-aggravated eczema caused by methylisothiazolinone]. PMID- 29037430 TI - Total spinal block after local anesthetic administration through the wrong access port of a spinal infusion pump. AB - We present a case reported on the SENSAR database. A patient with a spinal infusion pump was admitted for reservoir refill. On administration of 22ml of 0.75% bupivacaine the patient suffered a total spinal block with widespread loss strength and respiratory arrest. The patient required emergency orotracheal intubation, mechanical ventilation and admission to ICU, where extubation was achieved within two hours without incidences. At a later stage it was stated that the local anaesthetic had been administered via the access port for bolus or contrast administration instead of via the access to the reservoir. Analysis of the incident showed up latent factors related to absence lack of personnel training and internal protocols. The following measures were taken: pain unit meeting, alert sent to SENSAR bulletin and training request for members of the service. PMID- 29037431 TI - Effect of Chlorella supplementation on cardiovascular risk factors: A meta analysis of randomized controlled trials. AB - BACKGROUND & AIMS: The effect of Chlorella supplementation on cardiovascular risk factors of subjects with different health status has not been conclusively studied. Therefore, the efficacy of Chlorella supplementation on cardiovascular risk factors was assessed through a meta-analysis. METHODS: A literature search on five electronic databases was performed and related randomized controlled trials (RCTs) published until 15 January 2017 were identified. For each study, the effect size of each outcome was presented as Un-standardized mean difference and 95% confidence interval (CI). The overall effect for each outcome was calculated using random effects model. RESULTS: Meta-analysis on 19 RCTs with 797 subjects indicated that Chlorella administration significantly decreased the levels of total cholesterol (TC; -9.09 mg/dl, 95% CI: -12.91 to -5.26, P < 0.001), low-density lipoprotein cholesterol (LDL-C; -8.32 mg/dl, 95% CI: -12.22 to -4.42, P < 0.001), systolic blood pressure (SBP; -4.51 mmHg, 95% CI: -6.53 to 2.48, P < 0.001), diastolic blood pressure (DBP, -1.64 mmHg, 95% CI: -3.28 to 0.01, P = 0.049), and fasting blood glucose (FBG; -4.23 mg/dl, 95% CI: -8.29 to 0.17, P = 0.041) whereas changes in triglycerides (TG; 1.73 mg/dl, 95% CI: -7.25 to 10.70, P = 0.706), high-density lipoprotein cholesterol (HDL-C; 1.54 mg/dl, 95% CI: -2.40 to 5.48, P = 0.443), and body mass index (BMI; -0.23 kg/m2, 95% CI: -0.97 to 0.51, P = 0.545) was not statistically significant. Subgroup analyses based on intervention duration and Chlorella doses revealed that administration of Chlorella for 8 weeks or higher and doses higher than 4 g/day significantly reduced TC, LDL-C, SBP, and DBP levels in the participants. Moreover, Chlorella supplementation significantly reduced TC and LDL-C levels in unhealthy individuals, and also reduced SBP and DBP in hypertensive ones. CONCLUSIONS: The results indicated that Chlorella supplementation improved levels of TC, LDL-C, SBP, DBP, and FBG but the changes in TG, HDL-C, and BMI were not satisfactory. More precise RCTs on subjects with different health status is recommended to clarify the effect of Chlorella supplementation on cardiovascular risk factors. PMID- 29037432 TI - Acupuncture for Small Animal Neurologic Disorders. AB - Modern research on traditional Chinese veterinary medicine (TCVM), including herbal medicine and acupuncture, has made evident the role of the nervous system as a cornerstone in many of the mechanisms of action of TCVM. Laboratory models and clinical research available are supportive for the use of TCVM in the management of neurologic conditions in small animals, specifically in cases of intervertebral disk disease, other myelopathies, and painful conditions. This article is meant to help guide the use of TCVM for neurologic disorders in small animals, based on available information and recommendations from experienced TCVM practitioners. PMID- 29037433 TI - Minimally Invasive Spine Surgery in Small Animals. AB - Minimally invasive spine surgery (MISS) seems to have many benefits for human patients and is currently used for various minor and major spine procedures. For MISS, a change in access strategy to the target location is necessary and it requires intraoperative imaging, special instrumentation, and magnification. Few veterinary studies have evaluated MISS for canine patients for spinal decompression procedures. This article discusses the general requirements for MISS and how these can be applied to veterinary spinal surgery. The current veterinary MISS literature is reviewed and suggestions are made on how to apply MISS to different spinal locations. PMID- 29037434 TI - Clinical Evaluation of the Feline Neurologic Patient. AB - Efficient, gentle, and safe handling of cats can result in complete neurologic evaluations and accurate neuroanatomic localizations. The clinic environment should facilitate the examination by providing a quiet and secure environment for the cat. When direct examination of a cat is not possible, the practitioner should fully use indirect methods of examination and video recordings of cat behavior or clinical signs. Direct examination of a cat should proceed in a logical order, where the most useful tests are performed early on in the examination. PMID- 29037435 TI - Feline Epilepsy. AB - Seizures occur commonly in cats and can be classified as idiopathic epilepsy, structural epilepsy, or reactive seizures. Pursuit of a diagnosis may include a complete blood count, serum biochemistry, brain MRI, and cerebrospinal fluid analysis as indicated. Antiepileptic drugs should be considered if a cat is having frequent seizures, or any 1 seizure longer than 5 minutes. Phenobarbital is often the drug of choice; however, levetiracetam may be more useful for certain types of epilepsy in cats. Long-term prognosis depends on the underlying diagnosis and response to therapy. PMID- 29037436 TI - Which imaging before reperfusion strategy? AB - The ischemic penumbra is a transient and potentially reversible condition. Therefore, infarct progression and its counterpart penumbral salvage are highly variable and result from the interaction of 3 major factors: collateral flow, revascularization delay and success. Multimodal brain imaging now offers in clinical practice an exhaustive characterization of the acute ischemic injury: vessel site occlusion, infarction/critical hypoperfusion volume, and collateral flow. From 1995 to 2015, IV alteplase administered within 4.5hours after the onset of acute BI diagnosed by the absence of hemorrhage on a non-contrast head CT scan has been the only approved revascularization treatment. Over the past 2years, 6 randomized trials have confirmed the benefit of a thrombectomy performed within 6-8 hours after the onset of an acute anterior BI downstream of an ICA/M1 occlusion. The recommended imaging modality for such patients remains a NCCT to exclude an hemorrhage and a CTA to confirm the proximal vessel occlusion. As a consequence, in the absence of collateral or penumbral imaging, studies and meta-analyses, have emphasized the importance of treatment delay on the outcome of patient after a revascularisation treatment (tPA/thrombectomy). These findings have supported the development of mobile stroke unit for tPA administration and the direct transfer of the patients eligible to thrombectomy to a comprehensive stroke center, bypassing primary stroke unit and sometimes conventional neuro imaging. In addition randomized controlled trial that did enroll patients based on the presence of a target mismatch on multimodal imaging demonstrated a higher benefit of revascularisation treatment by comparison with those who did not.This year the results of the randomized trial, Diffusion-weighted Imaging or Computerized Tomography Perfusion Assessment with Clinical Mismatch in the Triage of Wake-up and Late Presenting Strokes Undergoing Neurointervention with Trevo (DAWN)demonstrated for the first time that revascularization treatment for BI complicating an ICA or a proximal MCA M1 was still beneficial from 6 to 24hours after onset among patient who did have per their clinical exam and the multimodal brain imaging have a persistent penumbra. With this as a background we will discuss the yield of imaging for the selection of patients for a revascularization therapy. PMID- 29037437 TI - The Australian Royal Commission into Institutional Responses to Child Sexual Abuse. AB - The Royal Commission into Institutional Responses to Child Sexual Abuse is the largest royal commission in Australia's history and one of the largest public inquiries into institutional child abuse internationally. With an investment from the Australian government of half a billion dollars, it examined how institutions with a responsibility for children, both historically and in the present, have responded to allegations of child sexual abuse. Announced in the wake of previous Australian and international inquiries, public scandals and lobbying by survivor groups, its establishment reflected increasing recognition of the often lifelong and intergenerational damage caused by childhood sexual abuse and a strong political commitment to improving child safety and wellbeing in Australia. This article outlines the background, key features and innovations of this landmark public inquiry, focusing in particular on its extensive research program. It considers its international significance and also serves as an introduction to this special edition on the Australian Royal Commission, exploring its implications for better understanding institutional child sexual abuse and its impacts, and for making institutions safer places for children in the future. PMID- 29037438 TI - Tag team: Roles of miRNAs and Proteolytic Regulators in Ensuring Robust Gene Expression Dynamics. AB - Lack of prominent developmental defects arising from loss of many individual miRNAs is consistent with the observations of collaborative networks between miRNAs and roles for miRNAs in regulating stress responses. However, these characteristics may only partially explain the seemingly nonessential nature of many miRNAs. Non-miRNA gene expression regulatory mechanisms also collaborate with miRNA-induced silencing complex (miRISC) to support robust gene expression dynamics. Genetic enhancer screens have revealed roles of miRNAs and other gene repressive mechanisms in development or other cellular processes that were masked by genetic redundancy. Besides discussing the breadth of the non-miRNA genes, we use LIN-28 as an example to illustrate how distinct regulatory systems, including miRNAs and multiple protein stability mechanisms, work at different levels to target expression of a given gene and provide tissue-specific and stage-specific regulation of gene expression. PMID- 29037440 TI - Novel genetic loci associated HLA-B*08:01 positive myasthenia gravis. AB - OBJECTIVE: To identify potential causative markers involved in the development of early-onset myasthenia gravis (EOMG) in the MHC and non-MHC regions that may interact with the HLA-B*08:01 allele. METHODS: We analyzed 583 MG patients and identified 5 patients homozygous for the disease-associated ancestral haplotype 8.1 (HLA-A*01:01, B*08:01, DRB1*03:01, DQB1*02:01). We also analyzed more than 9000 controls and selected 24 for further investigation. We subsequently conducted a fine mapping analysis through high-throughput sequencing of the MHC region (from upstream of the GPalpha5 gene to downstream of the ZBTB9 gene). For the interaction analysis we analyzed a total of 150,090 SNPs equally distributed throughout the genome in the individuals that were homozygous for the main susceptibility HLA allele HLA-B*08:01 and investigated the expression of the genes located close to the observed susceptibility variants. RESULTS: The overall coverage of the 4.79 Mb MHC region ranged between 96.57% and 97.41%. We identified 705 new variants in the MHC region (673 SNPs and 32 InDels). However, no significant differences were found between patients and controls within the MHC region of the ancestral 8.1 haplotype. As the susceptibility gene is considered to be located close to the HLA-B locus, complete sequencing of the surrounding 200 kb was carried out in the 5 patients and 24 controls. No significant differences where observed, suggesting that the HLA-B molecule itself is the susceptibility factor for EOMG. We also observed two new susceptibility loci specific for MG HLA*08:01 patients (P < 3.33 * 10-7). These loci map to an intronic OVCH1 variant (rs10492374; P = 1.90 * 10-8) and a 5' downstream CNPY2 variant (rs10783780; P = 3.33 * 10-7) on chromosome 12. Individuals heterozygous for GA*rs10492374 showed an increased expression of the OVCH1 gene. The rs10783780 genotypes were not associated with CNPY2 mRNA levels, but the MG HLA*08:01 patients present a lower expression of this gene than the healthy controls. CONCLUSION: Our results showed that when we control for the influence of the ancestral haplotype 8.1, no polymorphism was demonstrated to be associated with EOMG development within the MHC region suggesting that the HLA-B*08:01 allele is the unique genetic factor within the HLA region responsible for EOMG development in patients who carry the ancestral haplotype 8.1. Our study also identified two novel polymorphisms as risk factors for MG HLA-B*08:01 positive patients which regulate the expression of the OVCH1 and CNYP2 genes. PMID- 29037441 TI - Impact of ankle foot orthosis stiffness on Achilles tendon and gastrocnemius function during unimpaired gait. AB - Ankle foot orthoses (AFOs) are designed to improve gait for individuals with neuromuscular conditions and have also been used to reduce energy costs of walking for unimpaired individuals. AFOs influence joint motion and metabolic cost, but how they impact muscle function remains unclear. This study investigated the impact of different stiffness AFOs on medial gastrocnemius muscle (MG) and Achilles tendon (AT) function during two walking speeds. We performed gait analyses for eight unimpaired individuals. Each individual walked at slow and very slow speeds with a 3D printed AFO with no resistance (free hinge condition) and four levels of ankle dorsiflexion stiffness: 0.25Nm/ degrees , 1Nm/ degrees , 2Nm/ degrees , and 3.7Nm/ degrees . Motion capture, ultrasound, and musculoskeletal modeling were used to quantify MG and AT lengths with each AFO condition. Increasing AFO stiffness increased peak AFO dorsiflexion moment with decreased peak knee extension and peak ankle dorsiflexion angles. Overall musculotendon length and peak AT length decreased, while peak MG length increased with increasing AFO stiffness. Peak MG activity, length, and velocity significantly decreased with slower walking speed. This study provides experimental evidence of the impact of AFO stiffness and walking speed on joint kinematics and musculotendon function. These methods can provide insight to improve AFO designs and optimize musculotendon function for rehabilitation, performance, or other goals. PMID- 29037439 TI - Caenorhabditis elegans Dosage Compensation: Insights into Condensin-Mediated Gene Regulation. AB - Recent work demonstrating the role of chromosome organization in transcriptional regulation has sparked substantial interest in the molecular mechanisms that control chromosome structure. Condensin, an evolutionarily conserved multisubunit protein complex, is essential for chromosome condensation during cell division and functions in regulating gene expression during interphase. In Caenorhabditis elegans, a specialized condensin forms the core of the dosage compensation complex (DCC), which specifically binds to and represses transcription from the hermaphrodite X chromosomes. DCC serves as a clear paradigm for addressing how condensins target large chromosomal domains and how they function to regulate chromosome structure and transcription. Here, we discuss recent research on C. elegans DCC in the context of canonical condensin mechanisms as have been studied in various organisms. PMID- 29037442 TI - Estimation of in vivo inter-vertebral loading during motion using fluoroscopic and magnetic resonance image informed finite element models. AB - Finite element (FE) models driven by medical image data can be used to estimate subject-specific spinal biomechanics. This study aimed to combine magnetic resonance (MR) imaging and quantitative fluoroscopy (QF) in subject-specific FE models of upright standing, flexion and extension. Supine MR images of the lumbar spine were acquired from healthy participants using a 0.5 T MR scanner. Nine 3D quasi-static linear FE models of L3 to L5 were created with an elastic nucleus and orthotropic annulus. QF data was acquired from the same participants who performed trunk flexion to 60 degrees and trunk extension to 20 degrees . The displacements and rotations of the vertebrae were calculated and applied to the FE model. Stresses were averaged across the nucleus region and transformed to the disc co-ordinate system (S1 = mediolateral, S2 = anteroposterior, S3 = axial). In upright standing S3 was predicted to be -0.7 +/- 0.6 MPa (L3L4) and -0.6 +/- 0.5 MPa (L4L5). S3 increased to -2.0 +/- 1.3 MPa (L3L4) and -1.2 +/- 0.6 MPa (L4L5) in full flexion and to -1.1 +/- 0.8 MPa (L3L4) and -0.7 +/- 0.5 MPa (L4L5) in full extension. S1 and S2 followed similar patterns; shear was small apart from S23. Disc stresses correlated to disc orientation and wedging. The results demonstrate that MR and QF data can be combined in a participant-specific FE model to investigate spinal biomechanics in vivo and that predicted stresses are within ranges reported in the literature. PMID- 29037443 TI - A comprehensive assessment of the musculoskeletal system: The CAMS-Knee data set. AB - Combined knowledge of the functional kinematics and kinetics of the human body is critical for understanding a wide range of biomechanical processes including musculoskeletal adaptation, injury mechanics, and orthopaedic treatment outcome, but also for validation of musculoskeletal models. Until now, however, no datasets that include internal loading conditions (kinetics), synchronized with advanced kinematic analyses in multiple subjects have been available. Our goal was to provide such datasets and thereby foster a new understanding of how in vivo knee joint movement and contact forces are interlinked - and thereby impact biomechanical interpretation of any new knee replacement design. In this collaborative study, we have created unique kinematic and kinetic datasets of the lower limb musculoskeletal system for worldwide dissemination by assessing a unique cohort of 6 subjects with instrumented knee implants (Charite - Universitatsmedizin Berlin) synchronized with a moving fluoroscope (ETH Zurich) and other measurement techniques (including whole body kinematics, ground reaction forces, video data, and electromyography data) for multiple complete cycles of 5 activities of daily living. Maximal tibio-femoral joint contact forces during walking (mean peak 2.74 BW), sit-to-stand (2.73 BW), stand-to-sit (2.57 BW), squats (2.64 BW), stair descent (3.38 BW), and ramp descent (3.39 BW) were observed. Internal rotation of the tibia ranged from 3 degrees external to 9.3 degrees internal. The greatest range of anterio-posterior translation was measured during stair descent (medial 9.3 +/- 1.0 mm, lateral 7.5 +/- 1.6 mm), and the lowest during stand-to-sit (medial 4.5 +/- 1.1 mm, lateral 3.7 +/- 1.4 mm). The complete and comprehensive datasets will soon be made available online for public use in biomechanical and orthopaedic research and development. PMID- 29037444 TI - Prevalence and Prognostic Relevance of Ventricular Conduction Disturbances in Patients With Aortic Stenosis. AB - The prevalence and prognostic implications of ventricular conduction disturbances in aortic stenosis (AS) have not been extensively evaluated. The present retrospective study investigated the prevalence and prognostic implications of ventricular conduction abnormalities (including the QRS morphology and duration) in AS. A total of 1,245 patients (mean age 66 +/- 14 years, 62.8% men) with varying AS severity (aortic sclerosis 33.9%, mild AS 11.5%, moderate AS 29.9%, and severe AS 24.7%) were evaluated. Demographic, clinical variables, and presence of ventricular conduction abnormalities on the electrocardiogram (based on QRS morphology and duration) were related to occurrence of all-cause mortality, correcting for occurrence of aortic valve replacement. The prevalence of ventricular conduction disorders increased in parallel with AS severity, which was particularly significant for left bundle branch block (4.3% in aortic sclerosis, 2.1% in mild AS, 4.6% in moderate AS, and 8.1% in severe AS; p = 0.042). The QRS duration showed a slight prolongation with increasing AS severity (102 +/- 21 ms in aortic valve sclerosis, 99 +/- 18 ms in mild AS, 104 +/- 22 ms in moderate AS, and 105 +/- 22 ms in severe AS; p = 0.044). During a mean follow up of 8.1 +/- 4.8 years, 40.9% of patients died. Right bundle branch block morphology (hazard ratio 1.59, 95% confidence interval 1.18 to 2.13, p = 0.002) and increase of QRS duration (hazard ratio 1.06, 95% confidence interval 1.02 to 1.11; p = 0.006) were independently associated with all-cause mortality. In conclusion, ventricular conduction disorders became more prevalent with increasing severity of AS and have an impact on survival. PMID- 29037445 TI - Effect of Age and Renal Function on Survival After Left Ventricular Assist Device Implantation. AB - Left ventricular assist devices (LVAD) are increasingly used, especially as destination therapy in in older patients. The aim of this study was to evaluate the effect of age on renal function and mortality in the first year after implantation. A retrospective multicenter cohort study was conducted, evaluating all LVAD patients implanted in the 2 participating centers (age >=18 years). Patients were stratified according to the age groups <45, 45-54, 55-64, and >=65 years old. Overall, 241 patients were included (mean age 52.4 +/- 12.9 years, 76% males, 33% destination therapy). The mean estimated Glomerular Filtration Rate (eGFR) at 1 year was 85, 72, 69, and 49 mL/min per 1.73 m2 in the age groups <45(n = 65, 27%), 45-54(n = 52, 22%), 55-64(n = 87, 36%), and >=65 years (n = 37, 15%) p <0.001)), respectively. Older age and lower eGFR at baseline (p <0.01) were independent predictors of worse renal function at 1 year. The 1-year survival post-implantation was 79%,84%, 68%, and 54% for those in the age group <45, 45-54, 55-64 and >=65 years (Log-rank p = 0.003). Older age, lower eGFR and, INTERMACS class I were independent predictors of 1-year mortality. Furthermore, older patients (age > 60 years) with an impaired renal function (eGFR <55 mL/min per 1.73 m2) had a 5-fold increased hazard ratio for mortality during the first year after implantation (p <0.001). In conclusion, age >60 years is an independent predictor for an impaired renal function and mortality. Older age combined with reduced renal function pre-implantation had a cumulative adverse effect on survival in patients receiving a LVAD. PMID- 29037446 TI - Transcatheter Aortic Valve Implantation Futility Risk Model Development and Validation Among Treated Patients With Aortic Stenosis. AB - Risk-benefit assessment for transcatheter aortic valve implantation (TAVI) is still evolving. A sizeable group of patients do not fully benefit from intervention despite a technically successful procedure. All patients who underwent TAVI with device success and with no Valve Academic Research Consortium (VARC)-2 defined complications were included. Various demographic data, clinical details, and echocardiographic findings were examined. The outcome was defined as 1-year composite of mortality, stroke, lack of functional-class improvement (by New York Heart Association class), and readmissions (>=1 month after the procedure). Logistic regression was used to fit the prediction model. We used a 10-fold cross-validation to validate our results. Of 543 patients, 435 met the inclusion criteria. The mean age was 82 (+/-6.5) years, 43% were men, and the mean Society of Thoracic Surgeons score was 6.6 (+/-4.7). At 1 year, 66 of 435 patients (15%) experienced the study end point. The final logistic regression model included diabetes, baseline New York Heart Association functional class, diastolic dysfunction, need for diuretics, mean gradient, hemoglobin level, and creatinine level. The area under the curve was 0.73 and was reduced to 0.71 after validation, with a 97% specificity using a single cutoff. Dividing to low-, medium-, and high-risk groups for futility produced a corresponding prevalence of 6%, 19%, and 59% futility. A web application for the prediction model was developed and provided. In conclusion, this prediction score may provide an important insight and may facilitate identification of patients who, despite a technically successful and uncomplicated procedure, have risk that may outweigh the benefit of a contemplated TAVI. PMID- 29037447 TI - A quinidine non responsive novel KCNT1 mutation in an Indian infant with epilepsy of infancy with migrating focal seizures. AB - Epilepsy of infancy with migrating focal seizures {a.k.a malignant migrating partial seizures of infancy (MMPSI)} is an uncommon epileptic encephalopathy with a poor prognosis. Migrating focal seizures with autonomic features, developmental stagnation and refractoriness to treatment are its key features. It is caused by genetic defects in various ion channels, most common being sodium activated potassium channel (KCNT1), found in up to 50% of cases. With advent of genetic diagnosis and precision medicine, many targeted therapies have been identified. Antagonist of KCNT1 coded ion channel like Quinidine has shown promising results in MMPSI. Here we report first mutation proven case of MMPSI from India. This child had a novel heterozygous missense mutation in exon10 of the KCNT1 gene (chr9:138650308; c.808C > C/G (p.Q270E)) which was pathogenic. Neither quinidine nor ketogenic diet could control his seizures. Ultimately, the child succumbed to his illness at nine months of age. PMID- 29037449 TI - Open thoracostomy as treatment of chronic empyema with bronchopleural fistula. PMID- 29037448 TI - Effects of Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) Inhibition with Bococizumab on Lipoprotein Particles in Hypercholesterolemic Subjects. AB - PURPOSE: Monoclonal antibody inhibitors of proprotein convertase subtilisin/kexin type 9 (PCSK9) elicit significant reductions in serum LDL-C levels. However, little is known about their effects on lipoprotein particles. The purpose of this analysis was to evaluate the effect of PCSK9 inhibition with bococizumab (RN316/PF-04950615), a humanized monoclonal antibody to PCSK9, on LDL, VLDL, and HDL particle concentration and size in hypercholesterolemic subjects. METHODS: Data from 3 double-blind, placebo-controlled, randomized studies were analyzed. In study 1, a total of 67 hypercholesterolemic subjects received IV placebo or bococizumab 0.25, 0.5, 1, or 1.5 mg/kg weekly for 4 weeks. In studies 2 and 3, a total of 135 hypercholesterolemic subjects taking statins received IV placebo or bococizumab 0.25, 1, 3, or 6 mg/kg monthly for 12 weeks. Lipoprotein particle concentration and size were measured by using nuclear magnetic resonance spectroscopy. FINDINGS: Overall, the majority of subjects were men (51.9%) aged >50 years of age and of white ethnic origin. In total, 189 subjects with both baseline and 2-week posttreatment data were included in the analysis. After PCSK9 inhibition with bococizumab 0.5, 1, 1.5, 3, and 6 mg/kg, concentrations of total LDL, total small LDL, and small VLDL particles decreased significantly versus baseline and placebo (P < 0.05), whereas concentrations of HDL particles increased (P < 0.05). The size of the LDL, VLDL, and HDL particles increased after PCSK9 inhibition. Reductions in LDL-C and total LDL particle concentrations were highly correlated. IMPLICATIONS: The effect of inhibiting PCSK9 with bococizumab on lipoprotein particle concentration and size are consistent with the general mechanism of PCSK9 inhibitors in blocking PCSK9-mediated downregulation of LDL receptors. PCSK9 inhibition has the potential to provide a clinical benefit through the modulation of atherogenic lipoprotein particles in addition to LDL-C lowering, and this effect will likely be assessed in future analyses of data from cardiovascular outcomes trials of PCSK9 monoclonal antibodies that are currently being conducted. ClinicalTrials.gov identifiers: NCT01243151, NCT01342211, and NCT01350141. PMID- 29037450 TI - Tissue expression of tubular injury markers is associated with renal function decline in diabetic nephropathy. AB - AIMS: The pathogenesis of diabetic kidney disease (DKD) is complex and multifactorial; increasing evidence suggests that tubular injury and inflammatory process are involved in disease progression. We investigated the potential association of renal expression of tubular injury markers, neutrophil gelatinase associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1), and inflammatory markers, tumor necrosis factor receptor (TNFR) 1 and 2 with renal progression in pathologically proven diabetic nephropathy (DN). METHODS: We identified 122 patients with confirmed DN. After excluding patients with other coexisting renal disease or estimated glomerular filtration rate (eGFR) <30mL/min/1.73m2, 35 patients were included. Annual decline of (GFR decline slope) was calculated using linear regression analysis. Tissue tubular and glomerular expressions of NGAL, KIM-1, TNFR1, and TNFR2 were assessed using immunohistochemistry. RESULTS: Median baseline urinary protein to creatinine ratio (uPCR) was 6.76 (2.18-7.61) mg/mg Cr, median baseline eGFR was 50 (43-66) mL/min per 1.73m2, and median GFR decline slope was 15.6 (4.4-35.1) mL/min per 1.73m2 per year. Positive correlations were observed between tubular expressions of NGAL and KIM-1, and GFR decline slopes (r=0.601, p<0.001; r=0.516, p=0.001, respectively), and between tubular expressions of KIM-1 and uPCR (r=0.596, p<0.001), and between NGAL and interstitial fibrosis and tubular atrophy (IFTA) score (r=0.391, p=0.024). No correlations were found between glomerular or tubular expressions of TNFRs, and clinical parameters including GFR decline slopes. On multivariate analysis, the association between tubular expressions of KIM-1 and GFR decline slopes was dependent on uPCR. Tubular expressions of NGAL were independently associated with GFR decline slopes, with an adjusted coefficient factor of 0.290 (95% confidence interval, 0.009-0.202, p=0.038). CONCLUSIONS: These findings suggest that tubular injury plays a key role in the pathogenesis of DKD in high-risk patients. Further studies are warranted to determine whether tubular injury could be a therapeutic target in DKD. PMID- 29037451 TI - [City-hospital network and quality control of officinal preparations]. AB - OBJECTIVES: In a hospital environment, the quality control of the hospital preparations allows to release homogeneous batches in a secure way. These controls are totally integrated into the process of production and can also, in certain cases, be realized for high-alert magistral preparations. In community pharmacy, these controls were not required, but the Agence regionale de sante (ARS) recently incited compounding community pharmacies to realize this type of analyses. This decision motivated the creation of a collaboration between the pharmacy department of a French teaching hospital and a society including around thirty community pharmacies having a preparatory. METHODS: Twenty community pharmacies distributed on all the territory have submitted one of their pediatric preparation, capsules of captopril 2mg, to the pharmacopoeia controls usually realized in the industry or hospital. RESULTS: All the analyzed batches were in agreement with European Pharmacopeia specifications. CONCLUSIONS: We shall present the rational of this work, the results as well as the numerous perspectives offered by this new type of collaboration joining completely the logic of a network city-hospital allowing the improvement of security of the medication circuit in France. PMID- 29037452 TI - Balancing Immunity and Yield in Crop Plants. AB - Crop diseases cause enormous yield losses and threaten global food[ED1] security. The use of highly resistant cultivars can effectively control plant diseases, but in crops, genetic immunity to disease often comes with an unintended reduction in growth and yield. Here, we review recent advances in understanding how nucleotide binding domain, leucine-rich repeat (NLR) receptors and cell wall-associated kinase (WAK) proteins function in balancing immunity and yield. We also discuss the role of plant hormones and transcription factors in regulating the trade-offs between plant growth and immunity. Finally, we describe how a novel mechanism of translational control of defense proteins can enhance immunity without the reduction in fitness. PMID- 29037453 TI - Establishment of calculated panel reactive antibody and its potential benefits in improving the kidney allocation strategy in Taiwan. AB - BACKGROUND/PURPOSE: Renal transplant candidates who are highly sensitized to human leukocyte antigens (HLAs) tend to wait longer to find a matched donor and have poor outcomes. Most organ-sharing programs prioritize highly sensitized patients in the allocation scoring system. The HLA sensitization status is traditionally evaluated by the panel-reactive antibody (PRA) assay. However, this assay is method dependent and does not consider the ethnic differences in HLA frequencies. A calculated PRA (cPRA), based on a population's HLA frequency and patients' unacceptable antigens (UAs), correctly estimates the percentage of donors suitable for candidates. The Taiwan Organ Registry and Sharing Center does not prioritize sensitized patients. We propose that the incorporation of the cPRA and UAs into the renal allocation program will improve the local kidney allocation policy. METHODS: We established a cPRA calculator using 6146 Taiwanese HLA-A, -B, -C, -DR, and -DQ phenotypes. We performed simulated allocation based on the concept of acceptable mismatch for 76 candidates with cPRA values exceeding 80%. RESULTS: We analyzed 138 waitlisted renal transplant candidates at our hospital, and we determined that the concordance rate of the cPRA and PRA for highly sensitized (%PRA > 80%) candidates was 92.5%, which decreased to 20% for those with %PRA < 80%. We matched 76 highly sensitized patients based on acceptable mismatch with the HLA phenotypes of 93 cadaver donors. Forty-six patients (61%) found at least one suitable donor. CONCLUSION: The application of the cPRA and acceptable mismatch can benefit highly sensitized patients and reduce positive lymphocyte cytotoxicity crossmatch. PMID- 29037454 TI - Incidence of pertussis in subjects aged 50years and older in France in 2013-2014. AB - OBJECTIVE: To assess the incidence of pertussis (whooping cough) in subjects aged 50years and older in France. METHODS: Participating family physicians (FPs) using the patient record management software AxiSante(r) included patients aged 50years and older, who had signed an informed consent form, presenting with persistent cough for 7 to 21days. Bordetella genetic material was detected by polymerase chain reaction (PCR) on nasopharyngeal samples collected at the FP's discretion. RESULTS: A total of 42 FPs included 129 patients from June 2013 to August 2014 (large cities: 38; medium-sized cities: 57; rural areas: 34); 106 samples were analyzed. Overall, 30 pertussis cases were diagnosed: 10 cases confirmed by PCR, 18 purely clinical cases, and two direct epidemiological cases. The crude incidence rate per 100,000 patients aged>=50years was 103.6 (95% CI: 69.9-47.9): 77.1 in large cities, 103.1 in medium-sized cities, and 143.9 in rural areas. The extrapolated incidence rate per 100,000 persons aged>=50years was 187.1 (95% CI: 126.2-67.1): 131.1 in large cities, 256.1 in medium-sized cities, and 242.2 in rural areas. CONCLUSION: The population aged 50years and older can serve as a reservoir. Its role in Bordetella pertussis circulation should be taken into account for pertussis booster vaccination programs. PMID- 29037456 TI - Factual Inaccuracies Contained in the Article Entitled, "Low Yield of Mobile Cardiac Outpatient Telemetry after Cryptogenic Stroke in Patients with Extensive Cardiac Imaging". PMID- 29037455 TI - Role-emerging placements (REPs) - An evolving alternative for student pharmacist experiential education. PMID- 29037457 TI - Epidemiology and burden of HPV-related disease. AB - Human papillomavirus (HPV) infection is recognized as one of the major causes of infection-related cancer in both men and women. High-risk HPV types are not only responsible for virtually all cervical cancer cases but also for a fraction of cancers of the vulva, vagina, penis, anus, and head and neck cancers. Furthermore, HPV is also the cause of anogenital warts and recurrent respiratory papillomatosis. Despite the availability of multiple preventative strategies, HPV related cancer remains a leading cause of morbi-mortality in many parts of the world, particularly in less developed countries. Thus, in this review, we summarize the latest estimates of the global burden of HPV-related diseases, trends, the attributable fraction by HPV types, and the potential preventative fraction. PMID- 29037458 TI - A new large species of gecko of the genus Hemidactylus Oken, 1817 (Reptilia: Sauria: Gekkonidae) from the Eastern Ghats, India. AB - A new large species of gecko superficially resembling Hemidactylus maculatus Dumeril & Bibron and its allied large Hemidactylus is described from Eastern Ghats. The new species, Hemidactylus kangerensis sp. nov. can be easily distinguished from members of the H. maculatus complex based on the number of femoral pores, i.e. 18-21 on each side, separated medially by 4 non-pored scales. A phylogenetic analysis based on partial sequence of mitochondrial gene cytochrome b shows that the gecko is a member of the "H. prashadi" clade and is sister to H. maculatus, from which it differs in an uncorrected pairwise sequence divergence of 10%. The discovery of a new large gecko from Eastern Ghats advocates the need for biodiversity assessment across the neglected Eastern Ghats. PMID- 29037459 TI - Undisciplined Thinking Facilitates Accessible Writing: A Response to Doubleday and Connell. PMID- 29037460 TI - Creativity: The Stronger, Blacker Sheep behind Great Papers - A Reply to Falkenberg and Tubb. PMID- 29037461 TI - Sustained improvement in vancomycin dosing and monitoring post-implementation of guidelines: Results of a three-year follow-up after a multifaceted intervention in an Australian teaching hospital. AB - INTRODUCTION: Despite vancomycin being in use for over half-a-century, it is still not dosed or monitored appropriately in many centers around the world. The objective of this study was to determine the effectiveness of a multifaceted intervention to implement a vancomycin dosing and monitoring guideline across multiple medical and surgical units over time. METHODS: This was an observational before-and-after interventional cohort study. The pre-intervention period was August to December 2010-2011 and the post-intervention period was September to November 2012-2014. The implementation strategy comprised: face-to-face education, online continuing medical education, dissemination of pocket guideline and email reminder. Outcome measures included: appropriate prescribing of loading and maintenance doses, therapeutic drug monitoring, time to attain target range and nephrotoxicity. RESULTS: Post-implementation prescribing of loading doses increased (10.4%-43.6%, P=<0.001), guideline adherent first maintenance dose (44% 68.4% P = 0.04), correct dose adjustment from (53.1%-72.2%, P = 0.009). Beneficial effects pre and post-implementation were observed for adherent timing of initial concentration (43.2%-51.9%, P = 0.01), concentrations in target range (32.6%-44.1%, P = 0.001), time to target range (median 6-4 days, P=<0.001), potentially nephrotoxic concentrations (30.7%-20.9%, P=<0.001) and nephrotoxicity (10.4%-6.8%, P=<0.001). CONCLUSIONS: A multifaceted intervention to implement a vancomycin dosing and monitoring guideline significantly improved prescribing, monitoring, pharmacokinetic and safety outcomes for patients treated with vancomycin over an extended period. However, increased guideline adoption by clinicians is required to maximize and prolong the utility of this important agent. PMID- 29037462 TI - Suicide in Castellon, 2009-2015: Do sociodemographic and psychiatric factors help understand urban-rural differences? AB - INTRODUCTION: Studies have pointed to rurality as an important factor influencing suicide. Research so far suggests that several sociodemograpic and psychiatric factors might influence urban-rural differences in suicide. Also, their contribution appears to depend on sex and age. Unfortunately, studies including a comprehensive set of explanatory variables altogether are still scare and most studies have failed to present their analyses split by sex and age groups. Also, urban-rural differences in suicide in Spain have been rarely investigated. The present study aimed at explaining rural-urban differences in suicidality in the province of Castellon (Spain). A comprehensive set of sociodemographic and psychiatric factors was investigated and analyses were split by sex and age. MATERIAL AND METHOD: The sample comprised all suicides recorded in the province of Castellon from January 2009 to December 2015 (n=343). Sociodemographic data included sex, age, and suicide method. Psychiatric data included the history of mental health service utilization, psychiatric diagnosis, suicide attempts, and psychiatric hospitalization. RESULTS: Consistent with past research, suicide rates were highest in rural areas, especially in men and older people. We also found that urban-rural differences in sociodemographic and psychiatric variables were sensitive to sex and age. Our results indicated that specialized mental health service use and accessibility to suicide means might help understand urban rural differences in suicide, especially in men. When exploring urban-rural differences as a function of age, general practitioner visits for psychiatric reasons were more frequent in the older age group in rural areas. CONCLUSIONS: Study implications for suicide prevention strategies in Spain are discussed. PMID- 29037464 TI - [Ocular sarcoidosis: What the internist should know?] AB - Sarcoidosis is one of the leading causes of inflammatory eye disease. Any part of the eye and its adnexal tissues can be involved. Uveitis and optic neuropathy are the main manifestations, which the internists face. This review reports the state of knowledge for these two ocular involvements and proposes an assessment algorithm for sarcoidosis in patients with suspected sarcoid uveitis. Two groups of patients with sarcoid uveitis can be distinguished: one young and multiethnic group in which ophthalmological findings are various and another group of elderly Caucasian women with mostly chronic posterior uveitis. Clinically isolated uveitis revealing sarcoidosis remains a strictly ocular condition in a large majority of cases. Although it could be a serious condition involving functional prognosis, an early recognition in addition to a growing therapeutic arsenal including intravitreal implant seems to have improved visual prognosis of the disease in the last years. Systemic corticosteroids are indicated when uveitis does not respond to topical corticosteroids or when there is bilateral posterior involvement, especially macular edema and occlusive vasculitis. In up to 25% of cases that require an unacceptable dosage of corticosteroids to maintain remission, additional immunosuppression is used, including methotrexate, azathioprine, and mycophenolate mofetil. Regarding systemic sarcoidosis, infliximab and adalimumab have been successfully used for the treatment of refractory or sight-threatening disease. Optic neuropathy often affects women of African and Caribbean origin. Some authors recommend that patients be treated with high-dose corticosteroids and concurrent immunosuppression from the onset for this manifestation, which may be associated with a poorer outcome. PMID- 29037465 TI - Influence of exposure time on the release of bacteria from a biofilm on Ti6Al4V discs using sonication: An in vitro model. AB - Implant sonication is considered a useful method for the diagnosis of implant related infections. We designed an in vitro study using Ti6Al4V discs and 5 different bacteria to determine the optimal sonication time for recovery of most bacteria tested to enable use of sonication in clinical practice for microbiological diagnosis of implant-related infections. We carried out a specific protocol for the adherence and subsequent biofilm formation on the materials used. The discs were then sonicated and the retrieved bacteria were quantified. From minute 1 to 5, the amount of recovered organisms grew progressively for all bacteria. Between minute 6 and minute 10, the number was irregular for all strains except E. coli, though no pattern was evidenced. E. coli was the only microorganism with a progressive increase in liberation throughout the process. Significant differences were observed in each of the 10minutes analyzed as concerns the release of the 5 strains (P<0.021) as well as in the mean dislodgement (of the 10minutes) of all tested strains (P<0.00001). Considering that infections in which biofilms are involved could be polymicrobial, we concluded that 5minutes is the optimal time of sonication in order to recover the maximum amount of most bacteria attached to Ti6Al4V discs. PMID- 29037466 TI - The Use of a GroEL-BLI Biosensor to Rapidly Assess Preaggregate Populations for Antibody Solutions Exhibiting Different Stability Profiles. AB - An automated method using biotinylated GroEL-streptavidin biosensors with biolayer interferometry (GroEL-BLI) was evaluated to detect the formation of transiently formed, preaggregate species in various pharmaceutically relevant monoclonal antibody (mAb) samples. The relative aggregation propensity of various IgG1 and IgG4 mAbs was rank ordered using the GroEL-BLI biosensor method, and the least stable IgG4 mAb was subjected to different stresses including elevated temperatures, acidic pH, and addition of guanidine HCl. The GroEL-BLI biosensor detects mAb preaggregate formation mostly before, or sometimes concomitantly with, observing soluble aggregates and subvisible particles using size-exclusion chromatography and microflow imaging, respectively. A relatively unstable bispecific antibody (Bis-3) was shown to bind the GroEL biosensor even at low temperatures (25 degrees C). During thermal stress (50 degrees C, 1 h), increased Bis-3 binding to GroEL-biosensors was observed prior to aggregation by size exclusion chromatography or microflow imaging. Transmission electron microscopy analysis of Bis-3 preaggregate GroEL complexes revealed, in some cases, potential hydrophobic interaction sites between the Fc domain of the Bis-3 and GroEL protein. The automated BLI method not only enables detection of transiently formed preaggregate species that initiate protein aggregation pathways but also permits rapid mAb formulation stability assessments at low volumes and low protein concentrations. PMID- 29037467 TI - Cross cultural adaptation and refinement of an English version of a Dutch patient reported questionnaire for hand sensitivity: The Radboud Evaluation of Sensitivity. AB - STUDY DESIGN: Longitudinal clinical measurement. INTRODUCTION: Sensory alterations in the hand can present as both decreased sensation or numbness, and hyperesthesia, including mechanical allodynia and cold intolerance. However, few patient-reported outcomes have been developed and validated for evaluation, particularly for increased sensitivity. The Radboud Evaluation of Sensitivity was developed in the Netherlands for patient-reported evaluation of hand sensitivity in complex regional pain syndrome. PURPOSE OF THE STUDY: The purpose of this study was to translate into English and culturally validate the Radboud Evaluation of Sensitivity for the North American context. METHODS: Forward and backward translation, followed by a psychometric evaluation of the synthesized version of the translated tool, was undertaken in a heterogeneous group of persons after hand injury, including nerve injuries, hand trauma, and complex regional pain syndrome. RESULTS: Thirty-six persons completed test-retest reliability testing, yielding an intraclass correlation coefficient of 0.92 (95% CI 0.85 to 0.96) for single measures. Internal consistency was also high at alpha = 0.96 in a larger sample (n = 56). Although some support for construct validity was generated, several validity hypotheses were not confirmed. Of interest, there appeared to be significant differences in the scores between persons with hypoesthesia as compared with those with hyperesthesia. CONCLUSIONS: The Radboud Evaluation of Sensitivity, English version appears to be a reliable tool for the self-reported evaluation of sensory alterations in the hand, including both hypoesthesia and hyperesthesia. More research is needed to add to the extent of and confidence in the validity and responsiveness of this assessment. LEVEL OF EVIDENCE: Level II. PMID- 29037463 TI - In vivo bone strain and finite element modeling of a rhesus macaque mandible during mastication. AB - Finite element analysis (FEA) is a commonly used tool in musculoskeletal biomechanics and vertebrate paleontology. The accuracy and precision of finite element models (FEMs) are reliant on accurate data on bone geometry, muscle forces, boundary conditions and tissue material properties. Simplified modeling assumptions, due to lack of in vivo experimental data on material properties and muscle activation patterns, may introduce analytical errors in analyses where quantitative accuracy is critical for obtaining rigorous results. A subject specific FEM of a rhesus macaque mandible was constructed, loaded and validated using in vivo data from the same animal. In developing the model, we assessed the impact on model behavior of variation in (i) material properties of the mandibular trabecular bone tissue and teeth; (ii) constraints at the temporomandibular joint and bite point; and (iii) the timing of the muscle activity used to estimate the external forces acting on the model. The best match between the FEA simulation and the in vivo experimental data resulted from modeling the trabecular tissue with an isotropic and homogeneous Young's modulus and Poisson's value of 10GPa and 0.3, respectively; constraining translations along X,Y, Z axes in the chewing (left) side temporomandibular joint, the premolars and the m1; constraining the balancing (right) side temporomandibular joint in the anterior-posterior and superior-inferior axes, and using the muscle force estimated at time of maximum strain magnitude in the lower lateral gauge. The relative strain magnitudes in this model were similar to those recorded in vivo for all strain locations. More detailed analyses of mandibular strain patterns during the power stroke at different times in the chewing cycle are needed. PMID- 29037468 TI - Insights Into the Pathophysiology of Esophageal Adenocarcinoma. AB - Although researchers have identified genetic alterations that contribute to development of esophageal adenocarcinoma, we know little about features of patients or environmental factors that mediate progression of chronic acid biliary reflux to Barrett's esophagus and cancer. Increasing our understanding of the mechanisms by which normal squamous epithelium progresses to early-stage invasive cancer will help formulate rational surveillance guidelines and allow us to divest resources away from patients at low risk of malignancy. We review the cellular and genetic alterations that occur during progression of Barrett's esophagus, based on findings from clinical studies and mouse models of disease. We review the features of the luminal and mucosal microenvironment of Barrett's esophagus that promote, in a small proportion of patients, development of esophageal adenocarcinoma. Markers of clonal evolution can be used to determine patient risk for cancer and set surveillance intervals. PMID- 29037470 TI - Pathophysiology of Gastroesophageal Reflux Disease. AB - The pathogenesis of gastroesophageal reflux disease (GERD) is complex and involves changes in reflux exposure, epithelial resistance, and visceral sensitivity. The gastric refluxate is a noxious material that injures the esophagus and elicits symptoms. Esophageal exposure to gastric refluxate is the primary determinant of disease severity. This exposure arises via compromise of the anti-reflux barrier and reduced ability of the esophagus to clear and buffer the refluxate, leading to reflux disease. However, complications and symptoms also occur in the context of normal reflux burden, when there is either poor epithelial resistance or increased visceral sensitivity. Reflux therefore develops via alterations in the balance of aggressive and defensive forces. PMID- 29037469 TI - Management of Patients With Adenocarcinoma or Squamous Cancer of the Esophagus. AB - Esophageal cancer is characterized by early and frequent metastasis. Surgery is the primary treatment for early-stage disease, whereas patients with patients with locally advanced disease receive perioperative chemotherapy or chemoradiotherapy. Squamous cancers can be treated with primary chemoradiotherapy without surgery, depending on their response to therapy and patient tolerance for subsequent surgery. Chemotherapy with a fluorinated pyrimidine and a platinum agent, followed by later treatment with taxanes and irinotecan, provides some benefit. Agents that inhibit the erb-b2 receptor tyrosine kinase 2 (ERBB2 or HER2), or vascular endothelial growth factor, including trastuzumab, ramucirumab, and apatinib, increase response and survival times. Esophageal adenocarcinomas have mutations in tumor protein p53 and mutations that activate receptor associated tyrosine kinase, vascular endothelial growth factor, and cell cycle pathways, whereas esophageal squamous tumors have a distinct set of mutations. Esophageal cancers develop systems to evade anti-tumor immune responses, but studies are needed to determine how immune checkpoint modification contributes to esophageal tumor development. PMID- 29037471 TI - A Behavioral Economic Approach to Improving Human Papillomavirus Vaccination. AB - PURPOSE: The objectives of this study were to measure the impact of a behavioral economic intervention on human papillomavirus (HPV) vaccine initiation and series completion rates for adolescents and to measure the impact of the intervention on the receipt of a nonincentivized influenza vaccine. METHODS: We conducted a quasi randomized trial to compare the impact of an escalating delayed cash incentive (intervention), compared with usual care (control), on HPV vaccination initiation and series completion rates among adolescents (11-17 years) at an urban medical center. We measured HPV vaccine initiation and completion rates during the 12 months after enrollment and subsequent influenza vaccination rates for 24 months after enrollment. RESULTS: A total of 85 participants were actively enrolled in the intervention arm and 103 were passively enrolled in the control arm. Participants were predominantly publically insured African-American and Hispanic adolescents. The majority (75%) of the intervention group received one or more doses of the HPV vaccine, with 36% completing the three-dose series, compared with 47% of the control group receiving one or more doses and only 13% completing the series. The odds of HPV p-value vaccine initiation (odds ratio 4.19 [95% confidence interval 1.84-10.10], p < .01) and HPV vaccine series completion (OR 4.16 [95% confidence interval 1.64-11.28], p < .01) were greater among the intervention group compared with the control group. There was no difference in influenza vaccination rates between the intervention group and the control group during the 2013-2014 season (p = .138) and during the 2014-2015 influenza season (p value .683). CONCLUSIONS: An incentive-based approach to HPV vaccination was effective in increasing vaccine initiation and series dose completion. PMID- 29037472 TI - Sample size estimation for cluster randomized controlled trials. AB - Cluster randomized controlled trials (cRCTs) are commonly used by clinical researchers. The advantages of cRCTs include preventing treatment contamination, enhancing administrative efficiency, convenience, external validity, ethical considerations, and likelihood of increased compliance by participants. However, when designing a cRCT, clinical researchers are faced with challenges, such as cluster units that may not have an equal number of participants within each. In this Technical Note, we discuss approaches for estimating the sample size, while taking into account unequal cluster sizes, and strategies for optimizing the design of cluster trials. PMID- 29037474 TI - Land surface phenology: What do we really 'see' from space? AB - Land surface phenology (LSP) provides bio-indication of ongoing climate change. It uses space-borne greenness proxies to monitor plant phenology at the landscape level from the regional to global scale. However, several unconsidered methodological and observational -related limitations may lead to misinterpretation of the satellite-derived signals. For instance, changes in species composition within a pixel could result in a change in the time series of the greenness proxy, due to the distinct phenology of the plant species involved. The change in the signal would then be misinterpreted as a phenological change while it is actually related to changes in species composition within the pixel. Other limitations include the selection of the smoothing technique and the method used to extract the LSP metrics. These not only may affect the timing of the LSP metrics but also the sign of the observed LSP change. Another and much less known limitation is related to the mixed signal from multi-canopy layers. Satellites may detect changes that corresponds to the understorey layer in complex vertical vegetation systems while the 'real' contribution of this layer (in terms of ecosystem functioning and dynamics) might be small compared to the undetected overstorey layer in cases of a late overstorey development. Here, some of the LSP basics are reviewed with emphasis on these (and other) potential sources of misinterpretation. Several aids to overcome these limitations, which include suggestions for multi methods analysis and the integration of information from satellite and ground-based sensors are provided alongside some prospective future LSP research directions. PMID- 29037473 TI - Ginsenoside Re protects against phencyclidine-induced behavioral changes and mitochondrial dysfunction via interactive modulation of glutathione peroxidase-1 and NADPH oxidase in the dorsolateral cortex of mice. AB - We investigated whether ginsenoside Re (Re) modulates phencyclidine (PCP)-induced sociability deficits and recognition memory impairments to extend our recent finding. We examined the role of GPx-1 gene in the pharmacological activity of Re against mitochondrial dysfunction induced by PCP in the dorsolateral cortex of mice. Since mitochondrial oxidative stress activates NADPH oxidase (PHOX), we applied PHOX inhibitor apocynin for evaluating interactive modulation between GPx 1 and PHOX against PCP neurotoxicity. Sociability deficits and recognition memory impairments induced by PCP were more pronounced in GPx-1 knockout (KO) than in wild type (WT) mice. PCP-induced mitochondrial oxidative stress, mitochondrial dysfunction, and membrane translocation of p47phox were more evident in GPx-1 KO than in WT. Re treatment significantly attenuated PCP-induced neurotoxic changes. Re also significantly attenuated PCP-induced sociability deficits and recognition memory impairments. The attenuation by Re was comparable to that by apocynin. The attenuation was more obvious in GPx-1 KO than in WT. Importantly, apocynin did not show any additional positive effects on the neuroprotective activity of Re, indicating that PHOX is a molecular target for therapeutic activity of Re. Our results suggest that Re requires interactive modulation between GPx activity and PHOX (p47phox) to exhibit neuroprotective potentials against PCP insult. PMID- 29037475 TI - Chronic arsenicosis and cadmium exposure in wild snowshoe hares (Lepus americanus) breeding near Yellowknife, Northwest Territories (Canada), part 1: Evaluation of oxidative stress, antioxidant activities and hepatic damage. AB - Previous gold mining activities and arsenopyrite ore roasting activities at the Giant mine site (1948 to 2004) resulted in the release of high amounts of arsenic and trace metals into the terrestrial and aquatic ecosystems of Yellowknife, Northwest Territories, Canada. While elevated levels of arsenic has been consistently reported in surface soils and vegetation near the vicinity of the Giant mine area and in surrounding locations, systematic studies evaluating the overall health status of terrestrial small mammals endemic to the area are lacking. The purpose of this present study was to evaluate and comparatively assess the biochemical responses and histopathological effects induced by chronic arsenic and cadmium exposure in wild snowshoe hares breeding near the city of Yellowknife, specifically around the vicinity of the abandoned Giant mine site and in reference locations. Analysis included measurement of total arsenic and cadmium concentration in nails, livers, kidneys, bones, stomach content of hares, in addition to histopathological evaluation of hepatic and ocular lesions. Biochemical responses were determined through measurement of lipid peroxidation levels and antioxidant enzymes activities (catalase, superoxide dismutase, glutathione peroxidase, and glutathione disulfide). The results revealed that arsenic concentration was 17.8 to 48.9 times higher in the stomach content, and in the range of 4 to 23 times elevated in the nails of hares from the mine area compared to the reference location. Arsenic and cadmium levels were also noted to be increased in the bones, renal and hepatic tissues of hares captured near the mine area compared to the reference site. Specifically, hares from the mine area showed nail cadmium levels that was 2.3 to 17.6 times higher than those from the reference site. Histopathological examination of the eyes revealed no specific ocular lesions, such as lens opacity (cataracts) or conjunctivitis; however, hares from both locations exhibited hepatic steatosis (fatty liver change). Lipid peroxidation levels were relatively increased and accompanied with reduced antioxidant enzyme activities in hares from the mine area compared to the hares from the reference site. The results of this preliminary study suggest that the snowshoe hares breeding near the vicinity of Yellowknife, including near the Giant mine area have been chronically exposed to elevated levels of arsenic and cadmium, which consequently led to the increased levels of oxidative stress and perturbation of antioxidant defense system in exposed animals. The results of this present study constitute the first observation of chronic arsenicosis in wild small mammal species in Canada. PMID- 29037476 TI - Zirconia-incorporated zinc oxide eugenol has improved mechanical properties and cytocompatibility with human dental pulp stem cells. AB - OBJECTIVE: Zinc oxide eugenol (ZOE) is widely used as a therapeutic dental restorative material. However, ZOE has poor mechanical properties and high cytotoxicity toward human dental pulp stem cells (hDPSCs) due to the release of Zn ions. In this study, zirconia-incorporated ZOE (ZZrOE) was developed to reduce the cytotoxicity and improve the mechanical properties of ZOE with sustained therapeutic effects on inflamed hDPSCs in terms of inflammatory gene expression levels compared with those of the original material. METHODS: After the setting time and mechanical properties of ZZrOE incorporating varying amounts of zirconia (0, 5, 10, and 20wt% in powder) were characterized, the surface morphology and composition of the resulting ZZrOE materials were investigated. The ions and chemicals released into the cell culture medium from ZOE and ZZrOE (3cm2/mL) were measured by inductively coupled plasma atomic emission spectroscopy and gas chromatography, respectively. After testing cytotoxicity against hDPSCs using the above extracts, the therapeutic effects on lipopolysaccharide-inflamed hDPSCs in terms of compromising the upregulation of inflammatory response-related mRNA expression were tested using real-time PCR. RESULTS: ZZrOE 20% exhibited increased compressive strength (~45%), 3-point flexural strength (~150%) and hardness (~75%), as well as a similar setting time (~90%), compared with those of ZOE. After the rough surface of ZZrOE was observed, significantly fewer released Zn ions and eugenol (~40% of that from ZOE) were detected in ZZrOE 20%. ZZrOE showed less cytotoxicity because of the lower amount of Zn ions released from ZOE while showing sustained inhibition of inflammatory marker (e.g., interleukin 1beta, 6 and 8) mRNA levels. SIGNIFICANCE: The improved mechanical properties and cytocompatibility, as well as the sustained therapeutic effects on inflamed hDPSCs, were investigated in ZZrOE compared with those of ZOE. Therefore, ZZrOE has the potential to be used as an alternative to ZOE as a dental restorative material. PMID- 29037478 TI - Five Hundred Seventy-Six Cases of Video-Assisted Thoracic Surgery Using Local Anesthesia and Sedation: Lessons Learned. AB - BACKGROUND: General anesthesia and endotracheal intubation are a luxury rather than a necessity for many video-assisted thoracic surgery (VATS) operations. Twenty-three years ago, I began using local anesthesia and sedation for pleural disease and subsequently, for pericardial and lung disease. STUDY DESIGN: The records of all patients undergoing VATS using local anesthesia and sedation at hospitals of the Geisinger Health System (Danville and Wilkes-Barre, PA), from June 1, 2002 to June 30, 2011, and the Lifebridge Health System (Baltimore, MD) from July 1, 2011 to March 1, 2017, were retrospectively reviewed. There was 1 unsuccessful attempt at this technique, and it was eligible for inclusion. No patient was excluded based on age, BMI, or comorbidities. No patient had endotracheal intubation, laryngeal mask airway, or epidural or nerve block analgesia; all patients breathed spontaneously. RESULTS: Five hundred twenty-nine patients ranging in age from 21 to 104 years (mean 67 years) underwent 576 procedures: pleural biopsy-drainage with or without talc (n = 368); drainage of empyema (n = 112); lung biopsy (n = 56); evacuation of chronic hemothorax (n = 23); pericardial window (n = 10); treatment of chylothorax (n = 2); lung abscess draining (n = 2); treatment of pneumothorax (n = 2); and mediastinal mass biopsy (n = 1). No patient required intubation or conversion to thoracotomy. There were 12 complications (2%). There were no deaths due to operation. CONCLUSIONS: Video assisted thoracic surgery using local anesthesia and sedation is safe and effective for many indications. A review of the lessons learned caring for 529 patients will allow any thoracic surgeon and any anesthesiologist to practice this technique. PMID- 29037477 TI - Mutational analysis of foot and mouth disease virus nonstructural polyprotein 3AB coding region to design a negative marker virus. AB - Inactivated purified whole virus vaccines are used for control of foot and mouth disease (FMD). ELISAs detecting antibodies to the nonstructural proteins (NSP), a marker of infection, are primarily used to differentiate FMD virus (FMDV) infected from vaccinated animals (DIVA). However, such DIVA assays have a limitation to their specificity since residual NSPs present in the relatively impure vaccines are suspected to induce an NSP-antibody response in the repeatedly vaccinated animals. Epitope-deleted negative marker vaccine strategy seems to have an advantage over the conventional vaccines in identifying the infected animals with accuracy. NSP 3AB contains an abundance of immunodominant B cell epitopes of diagnostic importance. This study addresses the feasibility of producing 3AB-truncated FMDV mutant as a potential negative marker vaccine candidate. An infectious cDNA clone of FMDV serotype Asia 1 strain was used to engineer an array of deletion mutations in the established antigenic domain of 3AB. The maximum length of deletion tolerated by the virus was found to be restricted to amino acid residues 87-144 in the C-terminal half of 3A protein along with deletion of the first two copies of 3B peptide. The 3AB-truncated marker virus (Asia 1 IND 491/1997Delta3A87-1443B1,2+FLAG) demonstrated infectivity titres comparable to that of the parental virus in BHK-21 (log10 7.42 TCID50/ml) and LFBK-alphaVbeta6 (log10 8.30 TCID50/ml) cell monolayer culture. The protein fragment corresponding to the viable deletion in the 3AB region was expressed in a prokaryotic system to standardize a companion assay (3A87-1533B1,2 I-ELISA) for the negative marker virus which showed reasonably high diagnostic sensitivity (96.9%) and specificity (100% for naive and 97.1% for uninfected vaccinated samples). The marker virus and its companion ELISA designed in this study provide a basis to devise a marker vaccine strategy for FMD control. PMID- 29037479 TI - Circulating miRNAs in nontumoral liver diseases. AB - In recent years, there has been increasing interest in finding new biomarkers for diagnosis and prognostication of liver diseases. MicroRNAs (miRNAs) are small noncoding RNA molecules involved in the regulation of gene expression and have been studied in relation to several conditions, including liver disease. Mature miRNAs can reach the bloodstream by passive release or by incorporation into lipoprotein complexes or microvesicles, and have stable and reproducible concentrations among individuals. In this review, we summarize studies involving circulating miRNAs sourced from the serum or plasma of patients with nontumoral liver diseases in attempt to bring insights in the use of miRNAs as biomarkers for diagnosis, as well as for prognosis of such diseases. In addition, we present pre-analytical aspects involving miRNA analysis and strategies for normalization of reverse transcription-quantitative polymerase chain reaction (RT-qPCR) data related to the studies evaluated. PMID- 29037480 TI - Linking energy sensing to suppression of JAK-STAT signalling: A potential route for repurposing AMPK activators? AB - Exaggerated Janus kinase-signal transducer and activator of transcription (JAK STAT) signalling is key to the pathogenesis of pro-inflammatory disorders, such as rheumatoid arthritis and cardiovascular diseases. Mutational activation of JAKs is also responsible for several haematological malignancies, including myeloproliferative neoplasms and acute lymphoblastic leukaemia. Accumulating evidence links adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK), an energy sensor and regulator of organismal and cellular metabolism, with the suppression of immune and inflammatory processes. Recent studies have shown that activation of AMPK can limit JAK-STAT-dependent signalling pathways via several mechanisms. These novel findings support AMPK activation as a strategy for management of an array of disorders characterised by hyper-activation of the JAK STAT pathway. This review discusses the pivotal role of JAK-STAT signalling in a range of disorders and how both established clinically used and novel AMPK activators might be used to treat these conditions. PMID- 29037481 TI - Surgical outcomes among elderly women with endometrial cancer treated by laparoscopic hysterectomy: a NRG/Gynecologic Oncology Group study. AB - OBJECTIVE: Tolerance of and complications caused by minimally invasive hysterectomy and staging in the older endometrial cancer population is largely unknown despite the fact that this is the most rapidly growing age group in the United States. The objective of this retrospective review was to compare operative morbidity by age in patients on the Gynecologic Oncology Group Laparoscopic Surgery or Standard Surgery in Treating Patients With Endometrial Cancer or Cancer of the Uterus (LAP2) trial. STUDY DESIGN: This is a retrospective analysis of patients from Gynecologic Oncology Group LAP2, a trial that included clinically early-stage uterine cancer patients randomized to laparotomy vs laparoscopy for surgical staging. Differences in the rates and types of intraoperative and perioperative complications were compared by age. Specifically complications between patients <60 vs >=60 years old were compared caused by toxicity analysis showing a sharp increase in toxicity starting at age 60 years in the laparotomy group. RESULTS: LAP2 included 1477 patients >=60 years old. As expected, with increasing age there was worsening performance status and disease characteristics including higher rates of serous histology, high-stage disease, and lymphovascular space invasion. There was no significant difference in lymph node dissection rate by age for the entire population or within the laparotomy or laparoscopy groups. Toxicity analysis showed a sharp increase in toxicity seen in patients >=60 years old in the laparotomy group. Further analysis showed that when comparing laparotomy with laparoscopy in patients <60 years old vs >=60 years old and controlling for race, body mass index, stage, grade, and performance status, patients <60 years old undergoing laparotomy had more hospital stays >2 days (odds ratio, 17.48; 95% confidence interval, 11.71 27.00, P < .001) compared with patients <60 years old undergoing laparoscopy. However, when comparing laparotomy with laparoscopy in patients >=60 years old, in addition to hospital stay >2 days (odds ratio, 12.77; 95% confidence interval, 8.74-19.32, P < .001), there were higher rates of the following postoperative complications: antibiotic administration (odds ratio, 1.63; 95% confidence interval, 1.24-2.14, P < .001), ileus (odds ratio, 2.16; 95% confidence interval, 1.42-3.31, P <0.001), pneumonias (odds ratio, 2.36; 95% confidence interval, 1.01 5.66, P = .048), deep vein thromboses (odds ratio, 2.87; 95% confidence interval, 1.08-8.03, P = .035), and arrhythmias (odds ratio, 3.21; 95% confidence interval, 1.60-6.65, P = .001) in the laparotomy group. CONCLUSION: Laparoscopic staging for uterine cancer is associated with decreased morbidity in the immediate postoperative period in patients >=60 years old. These results allow for more accurate preoperative counseling. A minimally invasive approach to uterine cancer staging may decrease morbidity that could affect long-term survival. PMID- 29037482 TI - The prediction of fetal death with a simple maternal blood test at 20-24 weeks: a role for angiogenic index-1 (PlGF/sVEGFR-1 ratio). AB - BACKGROUND: Fetal death is an obstetrical syndrome that annually affects 2.4 to 3 million pregnancies worldwide, including more than 20,000 in the United States each year. Currently, there is no test available to identify patients at risk for this pregnancy complication. OBJECTIVE: We sought to determine if maternal plasma concentrations of angiogenic and antiangiogenic factors measured at 24-28 weeks of gestation can predict subsequent fetal death. STUDY DESIGN: A case-cohort study was designed to include 1000 randomly selected subjects and all remaining fetal deaths (cases) from a cohort of 4006 women with a singleton pregnancy, enrolled at 6-22 weeks of gestation, in a pregnancy biomarker cohort study. The placentas of all fetal deaths were histologically examined by pathologists who used a standardized protocol and were blinded to patient outcomes. Placental growth factor, soluble endoglin, and soluble vascular endothelial growth factor receptor-1 concentrations were measured by enzyme-linked immunosorbent assays. Quantiles of the analyte concentrations (or concentration ratios) were estimated as a function of gestational age among women who delivered a live neonate but did not develop preeclampsia or deliver a small-for-gestational-age newborn. A positive test was defined as analyte concentrations (or ratios) <2.5th and 10th centiles (placental growth factor, placental growth factor/soluble vascular endothelial growth factor receptor-1 [angiogenic index-1] and placental growth factor/soluble endoglin) or >90th and 97.5th centiles (soluble vascular endothelial growth factor receptor-1 and soluble endoglin). Inverse probability weighting was used to reflect the parent cohort when estimating the relative risk. RESULTS: There were 11 fetal deaths and 829 controls with samples available for analysis between 24-28 weeks of gestation. Three fetal deaths occurred <28 weeks and 8 occurred >=28 weeks of gestation. The rate of placental lesions consistent with maternal vascular underperfusion was 33.3% (1/3) among those who had a fetal death <28 weeks and 87.5% (7/8) of those who had this complication >=28 weeks of gestation. The maternal plasma angiogenic index-1 value was <10th centile in 63.6% (7/11) of the fetal death group and in 11.1% (92/829) of the controls. The angiogenic index-1 value was <2.5th centile in 54.5% (6/11) of the fetal death group and in 3.7% (31/829) of the controls. An angiogenic index-1 value <2.5th centile had the largest positive likelihood ratio for predicting fetal death >24 weeks (14.6; 95% confidence interval, 7.7-27.7) and a relative risk of 29.1 (95% confidence interval, 8.8-97.1), followed by soluble endoglin >97.5th centile and placental growth factor/soluble endoglin <2.5th, both with a positive likelihood ratio of 13.7 (95% confidence interval, 7.3-25.8) and a relative risk of 27.4 (95% confidence interval, 8.2-91.2). Among women without a fetal death whose plasma angiogenic index-1 concentration ratio was <2.5th centile, 61% (19/31) developed preeclampsia or delivered a small-for-gestational age neonate; when the 10th centile was used as the cut-off, 37% (34/92) of women had these adverse outcomes. CONCLUSION: (1) A maternal plasma angiogenic index-1 value <2.5th centile (0.126) at 24-28 weeks of gestation carries a 29-fold increase in the risk of subsequent fetal death and identifies 55% of subsequent fetal deaths with a false-positive rate of 3.5%; and (2) 61% of women who have a false-positive test result will subsequently experience adverse pregnancy outcomes. PMID- 29037484 TI - Australian midwives views and experiences of practice and politics related to water immersion for labour and birth: A web based survey. AB - BACKGROUND: There is little published research that has examined practitioners' views and experiences of pain relieving measures commonly used during labour and birth, particularly for non-pharmacological measures such as water immersion. Furthermore, there is minimal published research examining the process of policy and guideline development, that is, the translation of published research to usable practice guidance. AIMS: The aims of phase three of a larger study were to explore midwives knowledge, experiences and support for the option of water immersion for labour and birth in practice and their involvement, if any, in development of policy and guidelines pertaining to the option. METHODS: Phase three of a three phased mixed methods study included a web based survey of 234 Australian midwives who had facilitated and/or been involved in the development of policies and/or guidelines relating to the practice of water immersion. FINDINGS: Midwives who participated in this study were supportive of both water immersion for labour and birth reiterating documented benefits of reduced pain, maternal relaxation and a positive birth experience. The most significant concerns were maternal collapse, the difficulty of estimating blood loss and postpartum haemorrhage whilst barriers included lack of accredited staff, lifting equipment and negative attitudes. Midwives indicated that policy/guideline documents limited their ability to facilitate water immersion and did not always to support women's informed choice. CONCLUSION: Midwives who participated in this study supported the practice of water immersion reiterating the benefits documented in the literature and minimal risk to the woman and baby. ETHICAL CONSIDERATIONS: The Human Research Ethics Committee of the University of South Australia approved the research. PMID- 29037483 TI - New labor management guidelines and changes in cesarean delivery patterns. AB - BACKGROUND: In 2010 the Consortium on Safe Labor published labor curves. It was proposed that the rate of cesarean delivery could be lowered by avoiding the diagnosis of arrest of dilation before 6 cm. However, there is little information on the uptake of the guidelines and on changes in cesarean delivery rates that may have occurred. OBJECTIVE: The objective of the study was to test the following hypotheses: (1) among patients laboring at term, rates of arrest of dilation disorders have decreased, leading to a decrease in the rate of cesarean delivery; (2) in the second stage, pushing duration prior to diagnosis of arrest of descent has increased, also leading to a reduction in the rate of cesarean delivery for this indication. As a secondary aim, we investigated changes in maternal and neonatal morbidity. STUDY DESIGN: This was a secondary analysis of a prospective cohort study of all patients presenting at >=37 weeks' gestation from 2010 through 2014 with a nonanomalous vertex singleton and no prior history of cesarean delivery. Rates of cesarean delivery, arrest of dilation, and changes in rates of maternal and neonatal morbidity were calculated in crude and adjusted models. Cervical dilation at diagnosis of the arrest of dilation, time spent at the maximal dilation prior to diagnosis of arrest of dilation, and time in the second stage prior to the diagnosis of arrest of descent were compared over the study period. RESULTS: There were 7845 eligible patients. The cesarean delivery rate in 2010 was 15.8% and, in 2014, 17.7% (P trend = .51). In patients undergoing cesarean delivery for the arrest of dilation, the median cervical dilation at the time of cesarean delivery was at 5.5 cm in 2010 and 6.0 cm in 2014 (P trend = .94). In these patients, there was an increase in the time spent at last dilation: 3.8 hours in 2010 to 5.2 hours in 2014 (P trend = .02). There was no change in the frequency of patients diagnosed with the arrest of dilation at <6 cm: 51.4% in 2010 and 48.6% in 2014 (P trend = .56). However, in these patients, the median time spent at the last cervical dilation was 4.0 hours in 2010 and 6.7 hours in 2014 (P trend = .046). There were 206 cesarean deliveries for the arrest of descent. The median pushing time in these patients increased in multiparous patients from 1.1 hours in 2010 to 3.4 hours in 2014 (P trend = .009); in nulliparous patients these times were 2.7 hours in 2010 and 3.8 hours in 2014 (P trend = .09). There was a significant trend toward increasing adverse neonatal and maternal outcomes (P < .001 for each). The adjusted odds ratio for adverse maternal outcome for 2014 compared with 2010 was 1.66 (95% confidence interval, 1.27-2.17); however, considering only transfusion, hemorrhage, or infection, there was no difference (P trend = .96). The adjusted odds ratio of adverse neonatal outcome in 2014 compared with 2010 was 1.80 (95% confidence interval, 1.36-2.36). CONCLUSION: Despite significant changes in labor management that have occurred over the initial years since publication of the new labor curves and associated guidelines, the primary cesarean delivery rate was not reduced and there has been an increase in maternal and neonatal morbidity in our institution. A randomized controlled trial is needed. PMID- 29037486 TI - A research method to explore midwives' views of national maternity service reforms. AB - BACKGROUND: Priorities of the National Maternity Services Plan (NMSP) are a significant contrast to current standard hospital maternity service provision. This paper demonstrates the applicability of case study methods to explore the views of midwives during a period of midwifery reform. AIM: This research aims to highlight key findings and insights surrounding recommended changes facing midwives that can be shared with education providers to incorporate strategies into education programs to ensure contemporary midwifery practice. METHODS: Exploratory Case Study methodology was employed using ethical processes and designing semi-structured interview questions to explore participants' views. Purposive sampling ensured participants were currently practicing midwives in order to reflect the perspective and intent of this study. Data were analysed and findings presented in categories and subcategories. RESULTS: Case Study methodology enables an in-depth understanding of a phenomenon to be explored within a natural context. The participants of this study formed a single unit of analysis to ensure the research makes a worthwhile contribution to the profession of midwifery. CONCLUSION: This paper demonstrates that Case Study methodology is a valid research approach to exploring the views of midwives employed in standard care settings during a period of national reform. The rigorous processes and versatility of Case Study methodology ensured a systematic, critical enquiry was undertaken to gain understanding of the views of participants in implementing the NMSP. This understanding is reflective of the real life contexts of midwives to promote understanding and provide a body of knowledge where there is ambiguity and uncertainty. PMID- 29037485 TI - A tale of two pregnancies: A Critical Interpretive Synthesis of women's perceptions about delayed initiation of antenatal care. AB - BACKGROUND: Delayed access to antenatal care in high income countries is associated with poor maternal, fetal and neonatal outcomes. The aim was to synthesise the diverse body of evidence around women's views of early antenatal care and barriers to attendance in such countries. Critical Interpretive Synthesis integrates the process of systematic review with the qualitative methods of meta-ethnography and grounded theory, with a focus on theory generation to inform policy, practice and future research. METHODS: Database searches were conducted, supplemented with reference and citation tracking and website searching between February 2014 and April 2016. Qualitative data analysis methods were used to extract and summarise the key themes from each study. A taxonomy of constructs was created, with the synthesis developed to thread these together. Fifty-four papers were synthesised, including qualitative, quantitative, mixed method and systematic review, published between 1987 and 2016. FINDINGS: Seventeen constructs around the core concept of 'acceptance of personal and public pregnancies' were produced. Acceptance of the 'personal' pregnancy considers the contribution of mindset in the recognition and acceptance of pregnancy, influenced by knowledge of pregnancy symptoms, pregnancy planning and desire. Acceptance of the 'public' pregnancy considers women's assessment of the social consequences of pregnancy, and the relevance and priority of antenatal care. CONCLUSION: Critical Interpretive Synthesis offers a systematic yet creative approach to the synthesis of diverse evidence. The findings offer new perspectives on women's perceptions of early pregnancy and attendance for care, which may be used to facilitate timely antenatal provision for all pregnant women. PMID- 29037488 TI - What is the mechanism of prolonged ileus after colectomy for inflammatory bowel disease within the ERAS protocol? PMID- 29037487 TI - [Chronic chest pain after rib fracture: It can cause a disability?] AB - INTRODUCTION: The rib fractures and instability of the chest wall are the main lesions of closed chest trauma. These lesions can be a source of chronic, often disabling with daily discomfort resulting limitation of some activities. The objective of this study was to assess the prevalence of this phenomenon in order to improve the quality of early care. METHODOLOGY: Through an observational retrospective cohort study on a number of 41 patients supported and monitored for traumatic rib fractures at the Military Hospital of Meknes during the period from October 2010 to March 2016. RESULTS: The circumstances of the accident were dominated by accidents of public roads (86%) and concerned the young adult male. Radiographs have enumerated 165 fracture lines with an average of 4 rib fractures per patient. These were unilateral fractures in 88% of cases, and concerned the means arc in 46% of cases. The rib fracture was undisplaced fracture in 39% of patients, whereas in 2 patients, a flail chest was present. Post-traumatic hemothorax (63% of cases) were the thoracic lesions most commonly associated with rib fractures. The initial management consisted in the use of analgesics systemically in all patients. The retrospective evaluation of pain by the verbal scale was possible in 30 patients. The persistent pain was noted in 60% of cases. This pain was triggered by a simple effort to moderate in 55% of cases, and hard effort in 28% of cases. In 17% of patients, even at rest, the pain occurred intermittently. The impact in terms of disability was mild to moderate in 28% of cases and important in 17%. The neuropathic pain was found in 3 patients. Therapeutically, the first and second levels of analgesics were sufficient to relieve pain. The neuroleptics were required for 2 patients. CONCLUSION: Our study confirms the persistence of chronic painful, sometimes lasting several years after the initial chest trauma. This pain is responsible of disability triggered most often after exercise. PMID- 29037490 TI - Alzheimer's disease pathogenesis: Is there a role for folate? AB - Epigenetic modifications, including changes in DNA methylation, have been implicated in a wide range of diseases including neurological diseases such as Alzheimer's. The role of dietary folate in providing methyl groups required for maintenance and modulation of DNA methylation makes it a nutrient of interest in Alzheimer's. Late onset Alzheimer's disease is the most common form of dementia and at present its aetiology is largely undetermined. From epidemiological studies, the interactions between folate, B-vitamins and homocysteine as well as the long latency period has led to difficulties in interpretation of the data, thus current evidence exploring the role of dietary folate in Alzheimer's is contradictory and unresolved. Therefore, examining the effects at a molecular level and exploring potential epigenetic mechanisms could increase our understanding of the disease and aetiology. The aim of this review is to examine the role that folate could play in Alzheimer's disease neuropathology and will focus on the effects of folate on DNA methylation which link to disease pathology, initiation and progression. PMID- 29037489 TI - Latent HIV-1 TAR Regulates 7SK-responsive P-TEFb Target Genes and Targets Cellular Immune Responses in the Absence of Tat. AB - The transactivating response element (TAR) structure of the nascent HIV-1 transcript is critically involved in the recruitment of inactive positive transcription elongation factor b (P-TEFb) to the promoter proximal paused RNA polymerase II. The viral transactivator Tat is responsible for subsequent P-TEFb activation in order to start efficient viral transcription elongation. In the absence of the viral transactivator of transcription (Tat), e.g., during latency or in early stages of HIV transcription, TAR mediates an interaction of P-TEFb with its inhibitor hexamethylene bis-acetamide-inducible protein 1 (HEXIM1), keeping P-TEFb in its inactive form. In this study, we address the function of HIV-1 TAR in the absence of Tat by analyzing consequences of HIV-1 TAR overexpression on host cellular gene expression. An RNA chimera consisting of Epstein-Barr virus-expressed RNA 2 (EBER2) and HIV-1 TAR was developed to assure robust overexpression of TAR in HEK293 cells. The overexpression results in differential expression of more than 800 human genes. A significant proportion of these genes is involved in the suppression of cellular immune responses, including a significant set of 7SK-responsive P-TEFb target genes. Our findings identify a novel role for HIV-1 TAR in the absence of Tat, involving the interference with host cellular immune responses by targeting 7SK RNA-mediated gene expression and P-TEFb inactivation. PMID- 29037491 TI - Molecular identification of polymers and anthropogenic particles extracted from oceanic water and fish stomach - A Raman micro-spectroscopy study. AB - Pacific Ocean trawl samples, stomach contents of laboratory-raised fish as well as fish from the subtropical gyres were analyzed by Raman micro-spectroscopy (RMS) to identify polymer residues and any detectable persistent organic pollutants (POP). The goal was to access specific molecular information at the individual particle level in order to identify polymer debris in the natural environment. The identification process was aided by a laboratory generated automated fluorescence removal algorithm. Pacific Ocean trawl samples of plastic debris associated with fish collection sites were analyzed to determine the types of polymers commonly present. Subsequently, stomach contents of fish from these locations were analyzed for ingested polymer debris. Extraction of polymer debris from fish stomach using KOH versus ultrapure water were evaluated to determine the optimal method of extraction. Pulsed ultrasonic extraction in ultrapure water was determined to be the method of choice for extraction with minimal chemical intrusion. The Pacific Ocean trawl samples yielded primarily polyethylene (PE) and polypropylene (PP) particles >1 mm, PE being the most prevalent type. Additional microplastic residues (1 mm - 10 MUm) extracted by filtration, included a polystyrene (PS) particle in addition to PE and PP. Flame retardant, deca-BDE was tentatively identified on some of the PP trawl particles. Polymer residues were also extracted from the stomachs of Atlantic and Pacific Ocean fish. Two types of polymer related debris were identified in the Atlantic Ocean fish: (1) polymer fragments and (2) fragments with combined polymer and fatty acid signatures. In terms of polymer fragments, only PE and PP were detected in the fish stomachs from both locations. A variety of particles were extracted from oceanic fish as potential plastic pieces based on optical examination. However, subsequent RMS examination identified them as various non-plastic fragments, highlighting the importance of chemical analysis in distinguishing between polymer and non-polymer residues. PMID- 29037492 TI - Modelling daily PM2.5 concentrations at high spatio-temporal resolution across Switzerland. AB - Spatiotemporal resolved models were developed predicting daily fine particulate matter (PM2.5) concentrations across Switzerland from 2003 to 2013. Relatively sparse PM2.5 monitoring data was supplemented by imputing PM2.5 concentrations at PM10 sites, using PM2.5/PM10 ratios at co-located sites. Daily PM2.5 concentrations were first estimated at a 1 * 1km resolution across Switzerland, using Multiangle Implementation of Atmospheric Correction (MAIAC) spectral aerosol optical depth (AOD) data in combination with spatiotemporal predictor data in a four stage approach. Mixed effect models (1) were used to predict PM2.5 in cells with AOD but without PM2.5 measurements (2). A generalized additive mixed model with spatial smoothing was applied to generate grid cell predictions for those grid cells where AOD was missing (3). Finally, local PM2.5 predictions were estimated at each monitoring site by regressing the residuals from the 1 * 1km estimate against local spatial and temporal variables using machine learning techniques (4) and adding them to the stage 3 global estimates. The global (1 km) and local (100 m) models explained on average 73% of the total,71% of the spatial and 75% of the temporal variation (all cross validated) globally and on average 89% (total) 95% (spatial) and 88% (temporal) of the variation locally in measured PM2.5 concentrations. PMID- 29037493 TI - Ambient concentrations and deposition rates of selected reactive nitrogen species and their contribution to PM2.5 aerosols at three locations with contrasting land use in southwest China. AB - The fast economic development of southwest China has resulted in significant increases in the concentrations of reactive nitrogen (Nr) in the atmosphere. In this study, an urban (Chengdu, CD), suburban (Shifang, SF) and agriculture (Yanting, YT) - dominated location in the Sichuan Province, southwest China, were selected to investigate the atmospheric composition of Nr, their concentrations and deposition rates. We measured Nr concentrations in precipitation (NH4+, NO3- and organic N (DON)), the gas phase (NH3 and NO2), and the aerosol particles (PM2.5), and calculated their fluxes over a two year period (2014-2016). Total annual N deposition rates were 49.2, 44.7 and 19.8 kg N ha-1 yr-1 at CD, SF and YT, respectively. Ammonia concentrations were larger at the urban and suburban sites than the agricultural site (12.2, 14.9, and 4.9 MUg N m-3 at CD, SF and YT, respectively). This is consistent with the multitude of larger sources of NH3, including city garbage, livestock and traffic, in the urban and suburban areas. Monthly NO2 concentrations were lower in warmer compared to the colder months, but seasonal differences were insignificant. Daily PM2.5 concentrations ranged from 7.7 to 236.0, 5.0-210.4 and 4.2-128.4 MUg m-3 at CD, SF and YT, respectively, and showed significant correlations with fine particulate NH4+ and NO3- concentrations. Ratios of reduced to oxidized N were in the range of 1.6 2.7. This implies that the control of reduced Nr especially in urban environments is needed to improve local air quality. PMID- 29037494 TI - Insights into the characteristics and sources of primary and secondary organic carbon: High time resolution observation in urban Shanghai. AB - There is growing evidence suggesting that organic aerosols play an important role in the evolution of severe haze episodes. However, long-term investigations of the different characteristics of carbonaceous aerosols during haze and non-haze days are insufficient. In this work, hourly measurements of organic carbon (OC) and elemental carbon (EC) in PM2.5 were conducted in Shanghai, a megacity in Eastern China, over the course of a year from July 2013 to June 2014. Both OC and EC exhibited a bimodal diel pattern and were highly dependent on the wind speed and direction. The concentration-weighted trajectory (CWT) analysis illustrated that primary OC (POC) and EC were largely associated with regional and long-range transport. Secondary OC (SOC) formation was the strongest during the harvest season owing to significant biomass burning emissions from the adjacent Yangtze River Delta and farther agricultural regions. Compared to OC (6.7 MUg m-3) and EC (2.0 MUg m-3) in the non-haze days, higher levels of both OC (15.6 MUg m-3) and EC (7.7 MUg m-3) were observed in the haze days as expected, but with lower OC/EC ratios in the haze days (2.4) than in non-haze days (4.6). The proportion of POC and EC in PM2.5 remained relatively constant as a function of PM2.5 mass loadings, while that of SOC significantly decreased on the highly polluted days. It is concluded that the haze pollution in urban Shanghai was influenced more by the primary emissions (POC and EC), while the role of SOC in triggering haze was limited. PMID- 29037495 TI - Residuals of organophosphate esters in foodstuffs and implication for human exposure. AB - Foodstuffs may be contaminated by organophosphate esters (OPEs) and become an important source of human exposure since OPEs are ubiquitous in the environment. In the present study, 10 OPEs were analyzed in various food matrices collected from a city in Eastern China including chicken, pork, fishes, vegetables, tofu, eggs, milk and cereals. The concentrations of Sigma10OPEs ranged from 1.1 to 9.6 ng g-1 fresh weight (fw) in the foodstuffs. Cereals had the highest residual level of total OPEs with a mean value of 5.7 ng g-1 fw. Tris(2-ethylhexyl) phosphate was detected in all foodstuff samples and showed the highest median residual concentration of 1.3 ng g-1 fw among the OPE analogs. The daily dietary intake of OPEs was calculated as 3.6 and 2.4 MUg d-1 for adults and children. Cereals were identified as the major contributor to the total OPEs among different types of foodstuffs. Preliminary exposure assessment revealed that the current non-cancer health risks of OPEs via dietary intake were in the range of 10-5-10-3, indicating low risk levels. Moreover, the hazard index of OPEs indicated that the risk for children (3 * 10-3) was higher than adults (2 * 10 3). PMID- 29037496 TI - Chronic ingestion of polystyrene microparticles in low doses has no effect on food consumption and growth to the intertidal amphipod Echinogammarus marinus? AB - The ingestion of microplastics (plastic particles <5 mm) has been observed in a range of marine organisms, and adverse effects have been reported in several species after high concentration exposure. However, the long-term effects of low dose ingestion remains unclear. The aim of this study was thus to assess the chronic effects of low concentrations of polystyrene microparticles to the intertidal amphipod Echinogammarus marinus, using food consumption, growth, and moulting as endpoints. Amphipods were fed a gelatinous algal feed spiked with microbeads (8 MUm) in concentrations of ~0.9, 9 and 99 microplastics/g for 35 days. E. marinus was also analysed for retention of microplastics, and egestion rate was calculated in a separate high-dose feeding experiment. No significant effects were found in the food consumption or growth assays. There was no accumulation of microplastics in the gut, with only one microbead recorded internally in three (8%) of the exposed amphipods. The low number is likely linked to gastrointestinal functions, allowing for easy egestion of indigestible items. This assumption was supported by the observation that after high-dose exposure, 60% of E. marinus egested all microbeads within 24 h. This study suggests that ingesting low concentrations of 8 MUm microplastics do not impair the feeding or growth of amphipods along the exposure period. We hope that negative results such as these may further assist in assessing the impact posed by microplastics to marine organisms. PMID- 29037497 TI - Comparative toxicities of silver nitrate, silver nanocolloids, and silver chloro complexes to Japanese medaka embryos, and later effects on population growth rate. AB - Fish embryo toxicology is important because embryos are more susceptible than adults to toxicants. In addition, the aquatic toxicity of chemicals depends on water quality. We examined the toxicities to medaka embryos of three types of silver-AgNO3, silver nanocolloids (SNCs), and silver ions from silver nanoparticle plates (SNPPs)-under three pH conditions (4.0, 7.0, and 9.0) in embryo-rearing medium (ERM) or ultrapure water. Furthermore, we tested the later life-stage effects of SNCs on medaka and their population growth. "Later-life stage effects" were defined here as delayed toxic effects that occurred during the adult stage of organisms that had been exposed to toxicant during their early life stage only. AgNO3, SNCs, and silver ions were less toxic in ERM than in ultrapure water. Release of silver ions from the SNPPs was pH dependent: in ERM, silver toxicity was decreased owing to the formation of silver chloro-complexes. SNC toxicity was higher at pH 4.0 than at 7.0 or 9.0. AgNO3 was more toxic than SNCs. To observe later-life effects of SNCs, larvae hatched from embryos exposed to 0.01 mg/L SNCs in ultrapure water were incubated to maturity under clean conditions. The mature medaka were then allowed to reproduce for 21 days. Calculations using survival ratios and reproduction data indicated that the intrinsic population growth rate decreased after exposure of embryos to SNC. SNC exposure reduced the extinction time as a function of the medaka population carrying capacity. PMID- 29037499 TI - Neuropsychiatric and cognitive profile of early Richardson's syndrome, Progressive Supranuclear Palsy-parkinsonism and Parkinson's disease. AB - INTRODUCTION: The two main variants of Progressive Supranuclear Palsy (PSP), Richardson's syndrome (PSP-RS) and PSP-parkinsonism (PSP-P), share motor and non motor features with Parkinson's disease (PD) particularly in the early stages. This makes the precocious diagnosis more challenging. We aimed at defining qualitative and quantitative differences of neuropsychiatric and neuropsychological profiles between PSP-P, PSP-RS and PD patients recruited within 24 months after the onset of symptoms, in order to clarify if the identification of peculiar cognitive and psychiatric symptoms is of help for early PSP diagnosis. METHODS: PD (n = 155), PSP-P (n = 11) and PSP-RS (n = 14) patients were identified. All patients were submitted to clinical, neurological, neuropsychiatric diagnostic evaluation and to a comprehensive neuropsychiatric and neuropsychological battery. Predictors of PSP-P and PSP-RS diagnosis were identified by multivariate logistic regressions including neuropsychiatric and neuropsychological features that differed significantly among groups. RESULTS: The three groups differed significantly at the Apathy Rating Scale score and at several neuropsychological domains. The multivariate logistic regressions indicated that the diagnosis of PSP-RS was predicted by phonological verbal fluency deficit whereas the presence of apathy significantly predicted the PSP-P diagnosis. CONCLUSION: Peculiar neuropsychiatric and neuropsychological symptoms are identifiable very precociously in PSP-P, PSP-RS and PD patients. Early phonological verbal fluency deficit identifies patients with PSP-RS whereas apathy supports the diagnosis of PSP-P. PMID- 29037500 TI - Motor, behavioural, and cognitive correlates of fatigue in early, de novo Parkinson disease patients. AB - INTRODUCTION: Fatigue is one of the most common and disabling non-motor symptoms in Parkinson's disease (PD). The objective of this study was to determine prevalence and motor, behavioural, and cognitive correlates of distressing fatigue in early, de novo PD patients. METHODS: Eighty-one consecutive de novo PD patients (64% men; mean age 65.73 +/- 8.26 years) underwent a comprehensive examination, including Parkinson's disease Fatigue Scale (PFS), Epworth Sleepiness Scale (ESS), Parkinson's Disease Sleep Scale (PDSS), Beck Depression Inventory (BDI), Parkinson's Anxiety Scale (PAS), and Apathy Evaluation Scale (AES). Moreover, all patients underwent a detailed neuropsychological evaluation exploring attention and working memory, executive functions, memory, visuospatial abilities and language. Score of patients with or without distressing fatigue (defined as a PFS score >= 8) were compared by Student's t-test or Pearson's chi square test. Logistic regression analyses were performed to search for motor and non-motor features independently associated with presence of distressing fatigue. RESULTS: Twelve (15%) patients presented distressing fatigue. Logistic regression identified sleepiness (p = 0.04), "episodic anxiety" subscale of PAS (p = 0.005), and "cognitive apathy" subscale of AES (p = 0.017) as the main factors associated with distressing fatigue. No significant association was found between diagnosis of Mild Cognitive Impairment and distressing fatigue (p = 0.745). CONCLUSION: In a sample of consecutive de novo PD patients, distressing fatigue is associated with episodic anxiety, cognitive apathy and sleepiness, but not with cognitive impairment. Our findings suggest possible shared pathogenic mechanisms underlying these non-motor symptoms and foster development of early combined therapeutic approaches. PMID- 29037501 TI - Lifestyles and Health-Related Outcomes of U.S. Hospital Nurses: A Systematic Review. AB - BACKGROUND: Nurses' modifiable lifestyles have important health-related consequences. PURPOSE: To examine the literature on U.S. hospital nurses' activity, diet, and health outcomes of cardiovascular disease (CVD) risks and health-related quality of life (HRQOL). METHOD: A systematic review using of the literature from June 2006 to June 2016 resulted in 13 studies on U.S. hospital nurses' diet, physical activity and CVD and HRQOL outcomes. Methodological rigor was assessed using Cummings et al., adapted quality rating tool. DISCUSSION: Nurses are at risk for poor health outcomes due to inadequate physical activity (60%-74%) and eating a poor quality diet (53%-61%). Fewer than 5% of U.S. nurses engage in five healthy lifestyle behaviors (diet, activity, no tobacco, alcohol, and weight). Adequate physical activity contributes to better HRQOL and a healthy diet reduces CVD risks (hypertension, diabetes mellitus, obesity, stroke). CONCLUSIONS: Nurses' inactivity and poor diet increases risks for CVD and diminished HRQOL. PMID- 29037498 TI - Levodopa-carbidopa intestinal gel in advanced Parkinson's: Final results of the GLORIA registry. AB - INTRODUCTION: This registry evaluated the 24-month safety and efficacy of levodopa-carbidopa intestinal gel (LCIG) treatment in advanced Parkinson's disease (PD) patients under routine clinical care. METHODS: Motor fluctuations, dyskinesia, non-motor symptoms, quality of life, and safety were evaluated. Observations were fully prospective for treatment-naive patients (60% of patients) and partially retrospective for patients with <=12 months of pre treatment with LCIG (40% of patients). Hours of "On" and "Off" time were assessed with a modified version of the Unified Parkinson's Disease Rating Scale part IV items 32 and 39. RESULTS: Overall, 375 patients were enrolled by 75 movement disorder centers in 18 countries and 258 patients completed the registry. At 24 months LCIG treatment led to significant reductions from baseline in "Off" time (hours/day) (mean +/- SD = -4.1 +/- 3.5, P < 0.001), "On" time with dyskinesia (hours/day) (-1.1 +/- 4.8, P = 0.006), Non-Motor Symptom Scale total (-16.7 +/- 43.2, P < 0.001) and individual domains scores, and Parkinson's Disease Questionnaire-8 item total score (-7.1 +/- 21.0, P < 0.001). Adverse events deemed to have a possible/probable causal relationship to treatment drug/device were reported in 194 (54%) patients; the most frequently reported were decreased weight (6.7%), device related infections (5.9%), device dislocations (4.8%), device issues (4.8%), and polyneuropathy (4.5%). CONCLUSIONS: LCIG treatment led to sustained improvements in motor fluctuations, non-motor symptoms particularly sleep/fatigue, mood/cognition and gastrointestinal domains, as well as quality of life in advanced PD patients over 24 months. Safety events were consistent with the established safety profile of LCIG. PMID- 29037502 TI - Diversity and education of the nursing workforce 2006-2016. AB - BACKGROUND: The Institute of Medicine (IOM) report, The Future of Nursing, included recommendations to increase nurse diversity, the percent of nurses obtaining a bachelor's degree, and inter-professional education. PURPOSE: The purpose of this paper is to report the progress toward achievement of these recommendations. METHODS: We used a longitudinal, multi-state data from four cohorts of nurses newly licensed in 2004 to 2005, 2007 to 2008, 2010 to 2011, and 2014 to 2015 to examine and compare the trends. FINDING: The percentage of males who became licensed increased, from 8.8% in 2004 to 2005 cohort to 13.6% in the 2014 to 2015 cohort. The percentage of white-non-Hispanic nurses who were licensed decreased from 78.9% in 2007 to 2008 to 73.8% in 2014 to 2015. These differences primarily reflect an increase in white-Hispanic nurses. More nurses are obtaining a bachelor's degree as their first professional degree, from 36.6% in 2004 to 2005 cohort to 48.5% in 2014 to 2015 cohort. About 40% of the 2014 to 2015 cohort reported that they learned to work in inter-professional teams. Collegial nurse-physician relations had an upward positive trajectory over time increasing almost 7%. DISCUSSION: The diversity and education of new nurses have increased, but are short of meeting the IOM recommendations. PMID- 29037504 TI - An investigation of virulence factors of Legionella pneumophila environmental isolates. AB - Nine Legionella pneumophila strains isolated from cooling towers and a standard strain (L. pneumophila serogroup 1, ATCC 33152, Philadelphia 1) were analyzed and compared in terms of motility, flagella structure, ability to form biofilms, enzymatic activities (hemolysin, nucleases, protease, phospholipase A, phospholipase C, acid phosphatase, alkaline phosphatase and lipase), hemagglutination capabilities, and pathogenicity in various host cells (Acanthamoeba castellanii ATCC 30234, mouse peritoneal macrophages and human peripheral monocytes). All the isolates of bacteria appeared to be motile and polar-flagellated and possessed the type-IV fimbria. Upon the evaluation of virulence factors, isolate 4 was found to be the most pathogenic strain, while 6 out of the 9 isolates (the isolates 1, 2, 3, 4, 5, and 7) were more virulent than the ATCC 33152 strain. The different bacterial strains exhibited differences in properties such as adhesion, penetration and reproduction in the hosts, and preferred host type. To our knowledge, this is the first study to compare the virulence of environmental L. pneumophila strains isolated in Turkey, and it provides important information relevant for understanding the epidemiology of L. pneumophila. PMID- 29037503 TI - Growth kinetics of Escherichia coli O157:H7 on the epicarp of fresh vegetables and fruits. AB - Despite the increasing reports on the incidence of fresh vegetables and fruits as a possible vehicle for human pathogens, there is currently limited knowledge on the growth potential of Escherichia coli O157:H7 on different plant substrates. This study analyzed the selective adhesion and growth of E. coli O157:H7 on chili habanero (Capsicum chinense L.), cucumber (Cucumis sativus), radish (Raphanus sativus), tomato (Lycopersicon esculentum), beet (Beta vulgaris subsp. vulgaris), and onion (Allium cepa L.) under laboratory conditions. The Gompertz parameters were used to determine the growth kinetics. Scanning electron microscopy was used to visualize the adhesion of E. coli O157:H7 on the epicarp of the samples. Predictive models were constructed to compare the growth of E. coli O157:H7 on the samples with different intrinsic factors and to demonstrate the low selectivity of the pathogen. No significant difference was observed in the lag phase duration (LPD), generation time (GT), and exponential growth rate (EGR) of the pathogen adhered to the samples. The interaction between the microorganism and the substrate was less supportive to the growth of E. coli O157:H7 for onion, whereas for tomato and cucumber, the time for the microorganism to attain the maximum growth rate (M) was significantly longer than that recorded for other samples. PMID- 29037505 TI - In vitro antimicrobial and antimycobacterial activity and HPLC-DAD screening of phenolics from Chenopodium ambrosioides L. AB - The main objective of this study was to demonstrate the antimicrobial potential of the crude extract and fractions of Chenopodium ambrosioides L., popularly known as Santa-Maria herb, against microorganisms of clinical interest by the microdilution technique, and also to show the chromatographic profile of the phenolic compounds in the species. The Phytochemical screening revealed the presence of cardiotonic, anthraquinone, alkaloids, tannins and flavonoids. The analysis by HPLC-DAD revealed the presence of rutin in the crude extract (12.5+/ 0.20mg/g), ethyl acetate (16.5+/-0.37mg/g) and n-butanol (8.85+/-0.11mg/g), whereas quercetin and chrysin were quantified in chloroform fraction (1.95+/-0.04 and 1.04+/-0.01mg/g), respectively. The most promising results were obtained with the ethyl acetate fraction, which inhibited a greater number of microorganisms and presented the lowest values of MIC against Staphylococcus aureus and Enterococcus faecalis (MIC=0.42mg/mL), Pseudomonas aeruginosa (MIC=34.37mg/mL), Paenibacillus apiarus (MIC=4.29mg/mL) and Paenibacillus thiaminolyticus (MIC=4.29mg/mL). Considering mycobacterial inhibition, the best results were obtained by chloroform fraction against M. tuberculosis, M. smegmatis, and M. avium (MIC ranging from 156.25 to 625MUg/mL). This study proves, in part, that the popular use of C. ambrosioides L. can be an effective and sustainable alternative for the prevention and treatment of diseases caused by various infectious agents. PMID- 29037506 TI - Neural signatures of dynamic emotion constructs in the human brain. AB - How is emotion represented in the brain: is it categorical or along dimensions? In the present study, we applied multivariate pattern analysis (MVPA) to magnetoencephalography (MEG) to study the brain's temporally unfolding representations of different emotion constructs. First, participants rated 525 images on the dimensions of valence and arousal and by intensity of discrete emotion categories (happiness, sadness, fear, disgust, and sadness). Thirteen new participants then viewed subsets of these images within an MEG scanner. We used Representational Similarity Analysis (RSA) to compare behavioral ratings to the unfolding neural representation of the stimuli in the brain. Ratings of valence and arousal explained significant proportions of the MEG data, even after corrections for low-level image properties. Additionally, behavioral ratings of the discrete emotions fear, disgust, and happiness significantly predicted early neural representations, whereas rating models of anger and sadness did not. Different emotion constructs also showed unique temporal signatures. Fear and disgust - both highly arousing and negative - were rapidly discriminated by the brain, but disgust was represented for an extended period of time relative to fear. Overall, our findings suggest that 1) dimensions of valence and arousal are quickly represented by the brain, as are some discrete emotions, and 2) different emotion constructs exhibit unique temporal dynamics. We discuss implications of these findings for theoretical understanding of emotion and for the interplay of discrete and dimensional aspects of emotional experience. PMID- 29037507 TI - Gamma oscillations in the superior colliculus and pulvinar in response to faces support discrimination performance in monkeys. AB - The subcortical visual pathway including the superior colliculus (SC), pulvinar, and amygdala has been implicated in unconscious visual processing of faces, eyes, and gaze direction in blindsight. Our previous studies reported that monkey SC and pulvinar neurons responded preferentially to images of faces while performing a delayed non-matching to sample (DNMS) task to discriminate different visual stimuli (Nguyen et al., 2013, 2014). However, the contribution of SC and pulvinar neurons to the discrimination of the facial images and subsequent behavioral performance remains unknown. Since gamma oscillations have been implicated in sensory and cognitive processes as well as behavioral execution, we hypothesized that gamma oscillations during neuronal responses might contribute to achieving the appropriate behavioral performance (i.e., a correct response). In the present study, we re-analyzed those neuronal responses in the monkey SC and pulvinar to investigate possible relationships between gamma oscillations in these neurons and behavioral performance (correct response ratios) during the DNMS task. Gamma oscillations of SC and pulvinar neuronal activity were analyzed in three phases around the stimulus onset [inter-trial interval (ITI): 1000ms before trial onset; Early: 0-200ms after stimulus onset; and Late: 300-500ms after stimulus onset]. We found that human facial images elicited stronger gamma oscillations in the early phase than the ITI and late phase in both the SC and pulvinar neurons. Furthermore, there was a significant correlation between strengths of gamma oscillations in the early phase and behavioral performance in both the SC and pulvinar. The results suggest that gamma oscillatory activity in the SC and pulvinar contributes to successful behavioral performance during unconscious perceptual and behavioral processes. PMID- 29037508 TI - Leveraging Chemotype-Specific Resistance for Drug Target Identification and Chemical Biology. AB - Identifying the direct physiological targets of drugs and chemical probes remains challenging. Here we describe how resistance can be used to achieve 'gold standard' validation of a chemical inhibitor's direct target in human cells. This involves demonstrating that a silent mutation in the target that suppresses inhibitor activity in cell-based assays can also reduce inhibitor potency in biochemical assays. Further, phenotypes due to target inhibition can be identified as those observed in the inhibitor-sensitive cells, across a range of inhibitor concentrations, but not in genetically matched cells with a silent resistance-conferring mutation in the target. We propose that chemotype-specific resistance, which is generally considered to be a limitation of molecularly targeted agents, can be leveraged to deconvolve the mechanism of action of drugs and to properly use chemical probes. PMID- 29037509 TI - Structure determination of disease associated peak AAA from l-Tryptophan implicated in the eosinophilia-myalgia syndrome. AB - The eosinophilia-myalgia syndrome (EMS) outbreak of 1989 that occurred in the USA and elsewhere was caused by the ingestion of l-Tryptophan (L-Trp) solely manufactured by the Japanese company Showa Denko K.K. (SD). Six compounds present in the SD L-Trp were reported to be case-associated contaminants. However, "one" of these compounds, Peak AAA has remained structurally uncharacterized, despite the fact that it was described as "the only statistically significant (p=0.0014) contaminant". Here, we employ on-line microcapillary-high performance liquid chromatography-electrospray ionization mass spectrometry (LC-MS), and tandem mass spectrometry (MS/MS) to determine that Peak AAA is in fact two structurally related isomers. Peak AAA1 and Peak AAA2 differed in LC retention times, and were determined by accurate mass-LC-MS to both have a protonated molecular ion (MH+) of mass 343.239Da (Da), corresponding to a molecular formula of C21H30N2O2, and possessing eight degrees of unsaturation (DoU) for the non-protonated molecule. By comparing the LC-MS and LC-MS-MS retention times and spectra with authentic synthetic standards, Peak AAA1 was identified as the intermolecular condensation product of L-Trp with anteiso 7-methylnonanoic acid, to afford (S)-2-amino-3-(2 ((S,E)-7-methylnon-1-en-1-yl)-1H-indol-3-yl)propanoic acid. Peak AAA2 was determined to be a condensation product of L-Trp with decanoic acid, which produced (S)-2-amino-3-(2-((E)-dec-1-en-1-yl)-1H-indol-3-yl)propanoic acid. PMID- 29037510 TI - From swarm models to behavioural economical systems: Comment on "Modeling human behavior in economics and social science" by Marina Dolfin, Leone Leonida and Nisrine Outada. PMID- 29037511 TI - Comment on "Mistakes and inconsistencies regarding adsorption of contaminants from aqueous solution: A critical review, published by Tran et al. [Water Research 120, 2017, 88-116]". AB - Correct treatment of adsorption thermodynamics requires consistent handling of adsorption isotherms and the corresponding sorption coefficients. The present comment points to some inconsistencies and misunderstandings in a recent review article. PMID- 29037512 TI - Treatment outcomes and associated factors among extremely preterm infants in a major children hospital in Guangxi, China. AB - BACKGROUND: In developing countries, infant survival rate and long-term outcomes of extremely preterm infants(EPIs) have significantly improved due to advances in perinatal care. The striking gap in the treatment outcome of EPIs between China and the other developed countries was a major concern. To assess treatment outcomes and associated factors among EPIs in Nanning, China. METHODS: This was a perspective study consisting of eligible cases with gestational age between 22 and 28 weeks and infants were followed to 18-24 months of age. Data including clinical characteristics, perinatal factors and after-birth conditions were collected from the neonatal intensive care unit (NICU) in a major women's and children's health hospital in Guangxi Province from January 1st 2010 to February 1st 2015. RESULTS: During that period 79 EPIs were born in the hospital. Twenty eight infants died in hospital after their parents decided to withdraw clinical treatment. Of the 51 surviving infants, 5 infants were lost to follow-up. Eleven of the 46 infants were evaluated at 18-24 months of age and were diagnosed with neurodevelopmental disability and 35 infants showed normal motor language development. The incidence of intrauterine infection and intraventricular hemorrhage (IVH) grade III were both higher in the group of infants who were diagnosed neurodevelopmental disability than in the group of infants with normal motor language development (p < 0.05). Logistic regression analysis showed that intrauterine infection (OR = 33.290, 95%CI = 2.180-508.351) and IVH grade III (OR = 26.814, 95%CI = 3.631-197.989) were the major risk factors for neurodevelopmental disability in EPIs. CONCLUSIONS: Intrauterine infection and IVH grade III were associated with the neurodevelopmental disability in EPIs. PMID- 29037513 TI - Comparison of Abiraterone Acetate and Docetaxel with Androgen Deprivation Therapy in High-risk and Metastatic Hormone-naive Prostate Cancer: A Systematic Review and Network Meta-analysis. AB - CONTEXT: Randomized clinical trials have recently examined the benefit of adding docetaxel or abiraterone to androgen deprivation therapy (ADT) in hormone-naive advanced prostate cancer (PCa). OBJECTIVE: To perform a systematic review and network meta-analysis of randomized clinical trials, indirectly evaluating overall survival (OS) for men treated with abiraterone acetate plus prednisone/prednisolone with ADT (Abi-ADT) versus docetaxel with ADT (Doce-ADT) in hormone-naive high-risk and metastatic PCa. EVIDENCE ACQUISITION: Medline, Embase, Web of Science, Scopus, and Clinicaltrials.gov databases were searched in August 2017. We pooled results using the inverse variance technique and random effects models. The Bucher technique for indirect treatment comparison was used to compare Abi-ADT with Doce-ADT. A priori subgroup and sensitivity analyses were performed. EVIDENCE SYNTHESIS: Overall, 6067 patients from five trials were included: 1181 (19.5%) patients who received Doce-ADT, 1557 (25.7%) patients who received Abi-ADT, and 3329 (54.9%) patients who received ADT-alone. There was a total of 1921 deaths: 391 in the Doce-ADT group, 353 in the Abi-ADT group, and 1177 in the ADT-only group. The pooled hazard ratio (HR) for OS was 0.75 (95% confidence interval [CI]: 0.63-0.91, I2=51%, 3 trials, 2951 patients) for Doce ADT versus ADT-alone and 0.63 (95% CI: 0.55-0.72, I2=0%, 2 trials, 3116 patients) for Abi-ADT versus ADT-alone. The indirect comparison of Abi-ADT to Doce-ADT demonstrated no statistically significant difference in OS between these approaches (HR: 0.84, 95% CI: 0.67-1.06). Findings were similar in various a priori subset analyses, including patients with metastatic disease. Bayesian analyses demonstrated comparable results (HR: 0.83, 95% CI: 0.63-1.16). Despite the lack of statistical significance, Surface Under the Cumulative Ranking Analysis demonstrated an 89% probability that Abi-ADT was preferred. CONCLUSIONS: We did not identify a significant difference in OS between Abi-ADT and Doce-ADT for men with hormone-naive high-risk or metastatic PCa, although Bayesian analysis demonstrates a high likelihood that Abi-ADT was preferred. PATIENT SUMMARY: We synthesized the evidence available from studies examining the administration of docetaxel or abiraterone in combination with hormonal therapy for patients with newly diagnosed, advanced prostate cancer. While these studies did not directly compare these agents, we used methodological techniques to indirectly compare them and found no significant difference in overall survival. PMID- 29037514 TI - Re: Association Between Combined TMPRSS2:ERG and PCA3 RNA Urinary Testing and Detection of Aggressive Prostate Cancer. PMID- 29037515 TI - Re: Vasileios I. Sakalis, Markos Karavitakis, Dina Bedretdinova, et al. Medical Treatment of Nocturia in Men with Lower Urinary Tract Symptoms: Systematic Review by the European Association of Urology Guidelines Panel for Male Lower Urinary Tract Symptoms. Eur Urol 2017;72:757-69. PMID- 29037517 TI - Comparative studies of different types of osteosynthesis on the human corpse preparation in bilateral antero-lateral flail chest. AB - INTRODUCTION: Bilateral flail chest injuries are challenging in treatment and comparatively often require an operative stabilization of the anterior chest wall to re-establish normal physiological conditions of the chest wall in shape and statics. Various procedures have been described which are technically sophisticated for the surgeon. Consequently there is an increasing interest in potentials of operative care and their effectiveness on the anterolateral chest wall. MATERIALS AND METHODS: 12 Human cadavers were prepared and the natural Sternum Position (NP) was marked. A digital probe was fixed to the sternum at the height of the 4th intercostal space in order to measure and compare the stability of the thorax. Readings were taken of the sternal displacement at 1-5cm sagittal distance from NP in starting conditions and from every combination of materials. Serial osteotomies were performed on 2 locations on ribs 2-8 to induce bilateral flail chest. Afterwards the stabilization was achieved with different implants: RESULTS: The osteotomies lead to a subsidence of the sternum occurred to almost 75 mm from NP which corresponds to a maximal unstable situation. The unstable chest wall showed substantially more stabilization through the use of locking plates. Our materialcombinations showed a stability of up to 60% of normal. The more ribs were treated osteosynthetically, the higher the stability of the chest wall. DISCUSSION AND CONCLUSIONS: Locking plate fixation offers anatomically realignment of the ribs whereas metal strut support only lifts up the chest wall, but could not provide realignment of the dislocated ribs. PMID- 29037516 TI - Statin use and knee osteoarthritis progression: Results from a post-hoc analysis of the SEKOIA trial. AB - OBJECTIVE: Epidemiological and experimental studies have suggested that lipid disorders might be involved in the pathophysiology of knee osteoarthritis (OA). Studies assessing the effect of statins on knee OA progression have shown conflicting results. We investigated the impact of statin use on radiological progression in patients with radiological and symptomatic knee OA. METHODS: In total, 336 patients from the placebo arm of SEKOIA trial completed the 3-year follow-up and were included in this post-hoc analysis. Statin use was recorded at baseline interview. Minimal medial tibiofemoral joint space was measured on plain radiographs by an automated method at baseline and then annually. Radiologic progression was defined as joint space narrowing>=0.5mm over 3 years. RESULTS: Overall, 71 patients were statin users (21.1%). They had a higher BMI (31.1+/-5.3 vs. 29.3+/-5.2kg/m2, P=0.008), a higher sum of metabolic factors (>=3 factors: 43.7% vs 7.2%; P for trend<0.001) and a higher rate of radiological progression (49.3% vs. 32.1%, P=0.007) as compared to statin non-users. The significant association between radiological progression and statin use was independent of age, gender, WOMAC global score, disease duration, baseline joint space width, hypertension, type 2 diabetes, obesity (BMI>30kg/m2) and cardiovascular diseases [relative risk 1.49 (95% CI: 1.10-2.02), P=0.010]. CONCLUSION: Among patients with knee OA, statin use was associated with radiological worsening over 3 years, regardless of other potential confounding factors (obesity, type 2 diabetes, hypertension, disease duration, symptom intensity and radiological severity). PMID- 29037518 TI - Factors affecting the outcomes of modified tension band wiring techniques in transverse patellar fractures. AB - INTRODUCTION: Modified tension band wiring has been widely used to treat transverse patellar fractures. However, few studies have evaluated the clinical outcomes using different methods of Kirschner wire bending, location of the tension band, and depths of Kirschner wires. Thus, we tried to clarify these factors according to our clinical outcomes. PATIENTS AND METHODS: This retrospective cohort study recruited consecutive patients underwent surgical fixation for patellar fractures using modified tension band technique between January 2010 and December 2015. Different factors in this procedure, including the bending manner of the Kirschner wires, their depth, and location of the tension band with respect to the superior and inferior border of the patella were recorded and analysed. The primary outcome was early loss of fixation. The secondary outcomes were minor loss of reduction, implant breakage, deep infection, and the need for implant removal. RESULTS: This study included 170 patients with patellar fractures. Regarding the bending method, similar results were obtained with bilaterally or proximally bent Kirschner wires. Regarding length, the tension band was placed closely (within 25% of the patella length) in 124 patients and distantly in 46 patients. The rates of loss of reduction and implant breakage were significantly higher in the distantly placed tension bands. Regarding depth, 37 patellar fractures were fixed with the Kirschner wires at the superficial one third of the patellae while the K- wires at the middle layer of patella were used in the remaining 133 patellar fractures. A significantly higher rate of minor loss of reduction was obtained using the superficial Kirschner wires. CONCLUSION: The modified tension band technique for transverse patella fractures provides favourable clinical outcomes, with low failure (5%) and infection (2%) rates. Implant irritation is the major complication, and almost half of cases require implant removal. The location of the tension band with respect to the superior and inferior border of the patella plays an important role in clinical outcomes. Placing the wire close to the patella may prevent major loss of reduction and implant breakage. Superficially placed Kirschner wires also affect clinical outcomes by increasing the rate of minor loss of reduction. PMID- 29037519 TI - The Akt-like kinase of Leishmania panamensis: As a new molecular target for drug discovery. AB - The Akt-like kinase of Leishmania spp. is a cytoplasmic orthologous protein of the serine/threonine kinase B-PKB/human-Akt group, which is involved in the cellular survival of these parasites. By the application of a computational strategy we obtained two specific inhibitors of the Akt-like protein of L. panamensis (UBMC1 and UBMC4), which are predicted to bind specifically to the pleckstrin domain (PH) of the enzyme. We show that the Akt-like of Leishmania panamensis is phospho-activated in parasites under nutritional and thermic stress, this phosphorylation is blocked by the UBMC1 and UMBC2 and such inhibition leads to cell death. Amongst the effects caused by the inhibitors on the parasites we found high percentage of hypodiploidy and loss of mitochondrial membrane potential. Ultrastructural studies showed highly vacuolated cytoplasm, as well as shortening of the flagellum, loss of nuclear membrane integrity and DNA fragmentation. Altogether the presented results suggest that the cell death caused by UMBC1 and UMBC4 may be associated to an apoptosis-like process. The compounds present an inhibitory concentration (IC50) over intracellular amastigotes of L. panamensis of 9.2+/-0.8MUM for UBMC1 and 4.6+/-1.9MUM for UBMC4. The cytotoxic activity for UBMC1 and UBMC4 in human macrophages derived from monocytes (huMDM) was 29+/-1.2MUM and >40MUM respectively. Our findings strongly support that the presented compounds can be plausible candidates as a new therapeutic alternative for the inhibition of specific kinases of the parasite. PMID- 29037520 TI - Immunization with LJM11 salivary protein protects against infection with Leishmania braziliensis in the presence of Lutzomyia longipalpis saliva. AB - Leishmania is transmitted in the presence of sand fly saliva. Protective immunity generated by saliva has encouraged identification of a vector salivary-based vaccine. Previous studies have shown that immunization with LJM11, a salivary protein from Lutzomyia longipalpis, is able to induce a Th1 immune response and protect mice against bites of Leishmania major-infected Lutzomyia longipalpis. Here, we further investigate if immunization with LJM11 recombinant protein is able to confer cross-protection against infection with Leishmania braziliensis associated with salivary gland sonicate (SGS) from Lutzomyia intermedia or Lu. longipalpis. Mice immunized with LJM11 protein exhibited an increased production of anti-LJM11 IgG, IgG1 and IgG2a and a DTH response characterized by an inflammatory infiltrate with the presence of CD4+ IFN-gamma+ T cells. LJM11 immunized mice were intradermally infected in the ear with L. braziliensis in the presence of Lu. longipalpis or Lu. intermedia SGS. A significant reduction of parasite numbers in the ear and lymph node in the group challenged with L. braziliensis plus Lu. longipalpis SGS was observed, but not when the challenge was performed with L. braziliensis plus Lu. intermedia SGS. A higher specific production of IFN-gamma and absence of IL-10 by lymph node cells were only observed in LJM11 immunized mice after infection. After two weeks, a similar frequency of CD4+ IFN-gamma+ T cells was detected in LJM11 and BSA groups challenged with L. braziliensis plus Lu. longipalpis SGS, suggesting that early events possibly triggered by immunization are essential for protection against Leishmania infection. Our findings support the specificity of saliva-mediated immune responses and reinforce the importance of identifying cross-protective salivary antigens. PMID- 29037521 TI - [Intracardiac tumor causing recurrent central retinal artery occlusions]. PMID- 29037524 TI - T-regulatory cells-Triumph of perseverance: The Crafoord Prize for Polyarthritis in 2017. AB - The Crafoord Prize in Polyarthritis ranks as one of the most prestigious prizes and can be awarded only if the Royal Swedish Academy of Sciences decides the likelihood of prize worthy progress in the field, and at most every 4th year. This has happened only four times since 1982. This year the 5th Laureates were Shimon Sakaguchi, Fred Ramsdell, and Alexander Rudensky with the motivation "for their discoveries relating to regulatory T cells, which counteract harmful immune reactions in arthritis and other autoimmune diseases". Here I review the history of their contributions and its impact in rheumatology. PMID- 29037523 TI - A systematic review of measurement properties of patient reported outcome measures in psoriatic arthritis: A GRAPPA-OMERACT initiative. AB - BACKGROUND: An updated psoriatic arthritis (PsA) core outcome set (COS) for randomized controlled trials (RCTs) was endorsed at the Outcome Measures in Rheumatology (OMERACT) meeting in 2016. OBJECTIVES: To synthesize the evidence on measurement properties of patient reported outcome measures (PROMs) for PsA and thereby contribute to development of a PsA core outcome measurement set (COMS) as described by the OMERACT Filter 2.0. METHODS: A systematic literature search was performed in EMBASE, MEDLINE and PsycINFO on Jan 1, 2017 to identify full-text articles with an aim of assessing the measurement properties of PROMs in PsA. Two independent reviewers rated the quality of studies using the COnsensus based standards for the Selection of health Measurement INstruments (COSMIN) checklist, and performed a qualitative evidence synthesis. RESULTS: Fifty-five studies were included in the systematic review. Forty-four instruments and a total of 89 scales were analyzed. PROMs measuring COS domains with at least fair quality evidence for good validity and reliability (and no evidence for poor properties) included the Stockerau Activity Score for PsA (German), Psoriasis Symptom Inventory, visual analogue scale for Patient Global, 36 Item Short Form Health Survey Physical Function subscale, Health Assessment Questionnaire Disability Index, Bath Ankylosing Spondylitis Functional Index, PsA Impact of Disease questionnaire, PsA Quality of Life questionnaire, VITACORA-19, Functional Assessment of Chronic Illness Therapy Fatigue scale and Social Role Participation Questionnaire. CONCLUSIONS: At least one PROM with some evidence for aspects of validity and reliability was available for six of the eight mandatory domains of the PsA COS. PMID- 29037522 TI - Rheumatoid arthritis and risk of chronic obstructive pulmonary disease or asthma among women: A marginal structural model analysis in the Nurses' Health Study. AB - OBJECTIVE: We investigated whether RA increases risk for chronic obstructive pulmonary disease (COPD) or asthma independent of factors occurring before RA onset or mediating these respiratory morbidities after diagnosis, such as cigarette smoking. METHODS: Within the prospective Nurses' Health Study (n = 121,701 women; 1976-2014), we identified an incident RA cohort and matched each woman with RA to 10 comparators without RA by age and year at index date of RA diagnosis, excluding women with COPD or asthma at baseline. Data were obtained through biennial questionnaires and medical records. We used marginal structural models to determine the independent effect of RA on incident COPD or asthma adjusting for confounders and time-varying mediators through inverse probability weighting. RESULTS: We identified 843 women with RA, matched to 8,399 comparators without RA. Mean age was 59.8 years and mean follow-up after index date was 18.6 years (SD = 9.0) for women with RA, and 18.8 years (SD = 9.5) for comparators. We identified 68 (8.1%) incident COPD and 40 (4.7%) asthma cases among women with RA, and 459 (5.5%) COPD and 268 (3.2%) asthma cases among comparators. RA was associated with increased risk of COPD (HR = 1.52, 95% CI: 1.17-1.97) and asthma (HR = 1.55, 95% CI: 1.11-2.16) compared to comparators adjusted for the matching factors of age and calendar year at index date. After further adjustment for confounders and time-varying mediators occurring after index date, including smoking, RA was significantly associated with COPD (HR = 1.68, 95% CI: 1.36 2.07), but not asthma (HR = 1.11, 95% CI: 0.59-2.09) compared to non-RA comparators. Women with seropositive RA (HR = 1.60, 95% CI: 1.17-2.19) and seronegative RA (HR = 1.62, 95% CI: 1.09-2.40) had similar increased risk for COPD compared to non-RA comparators. CONCLUSION: In this prospective cohort study, RA was associated with increased risk for incident COPD, independent of lifestyle confounders and mediators after diagnosis, including smoking. PMID- 29037525 TI - Can the Antimicrobial Resistance Benchmark blaze a new trail? PMID- 29037526 TI - SIRS in the Time of Sepsis-3. AB - Severe sepsis is a common, deadly, and diagnostically vexing condition. Recent recommendations for diagnosing sepsis, referred to as consensus guidelines, provide a definition of sepsis and remove the systemic inflammatory response syndrome (SIRS) as a component of the diagnostic process. A concise definition of sepsis is welcomed. However, the approach to developing these guidelines, although thorough, had weaknesses. Emphasis is placed on mortality prediction rather than on early diagnosis. Diagnostic criteria are recommended to replace current criteria without evidence of any effect that their use would have on mortality. SIRS is a prevalent feature of patients with sepsis, should remain an important component of the diagnostic process, and remains a valuable term for discussing patients with life-threatening organ dysfunction caused by infection. PMID- 29037528 TI - Driving Pressure and Hospital Mortality in Patients Without ARDS: A Cohort Study. AB - BACKGROUND: Driving pressure (DeltaP) is associated with mortality in patients with ARDS and with pulmonary complications in patients undergoing general anesthesia. Whether DeltaP is associated with outcomes of patients without ARDS who undergo ventilation in the ICU is unknown. Our objective was to determine the independent association between DeltaP and outcomes in mechanically ventilated patients without ARDS on day 1 of mechanical ventilation. METHODS: This was a retrospective analysis of a cohort of 622 mechanically ventilated adult patients without ARDS on day 1 of mechanical ventilation from five ICUs in a tertiary center in the United States. The primary outcome was hospital mortality. The presence of ARDS was determined using the minimum daily Pao2 to Fio2 (PF) ratio and an automated text search of chest radiography reports. The data set was validated by first testing the model in 543 patients with ARDS. RESULTS: In patients without ARDS on day 1 of mechanical ventilation, DeltaP was not independently associated with hospital mortality (OR, 1.01; 95% CI, 0.97-1.05). The results of the primary analysis were confirmed in a series of preplanned sensitivity analyses. CONCLUSIONS: In this cohort of patients without ARDS on day 1 of mechanical ventilation and within the limits of ventilatory settings normally used by clinicians, DeltaP was not associated with hospital mortality. This study also confirms the association between DeltaP and mortality in patients with ARDS not enrolled in a trial and in hypoxemic patients without ARDS. PMID- 29037527 TI - CORK Study in Cystic Fibrosis: Sustained Improvements in Ultra-Low-Dose Chest CT Scores After CFTR Modulation With Ivacaftor. AB - BACKGROUND: Ivacaftor produces significant clinical benefit in patients with cystic fibrosis (CF) with the G551D mutation. Prevalence of this mutation at the Cork CF Centre is 23%. This study assessed the impact of cystic fibrosis transmembrane conductance regulator modulation on multiple modalities of patient assessment. METHODS: Thirty-three patients with the G551D mutation were assessed at baseline and prospectively every 3 months for 1 year after initiation of ivacaftor. Change in ultra-low-dose chest CT scans, blood inflammatory mediators, and the sputum microbiome were assessed. RESULTS: Significant improvements in FEV1, BMI, and sweat chloride levels were observed post-ivacaftor treatment. Improvement in ultra-low-dose CT imaging scores were observed after treatment, with significant mean reductions in total Bhalla score (P < .01), peribronchial thickening (P = .035), and extent of mucous plugging (P < .001). Reductions in circulating inflammatory markers, including interleukin (IL)-1beta, IL-6, and IL 8 were demonstrated. There was a 30% reduction in the relative abundance of Pseudomonas species and an increase in the relative abundance of bacteria associated with more stable community structures. Posttreatment community richness increased significantly (P = .03). CONCLUSIONS: Early and sustained improvements on ultra-low-dose CT scores suggest it may be a useful method of evaluating treatment response. It paralleled improvement in symptoms, circulating inflammatory markers, and changes in the lung microbiota. PMID- 29037529 TI - The Relationship Between Tobacco Smoke Exposure and Airflow Obstruction in US Children: Analysis of the National Health and Nutrition Examination Survey (2007 2012). AB - BACKGROUND: It has been difficult to determine the individual impact of prenatal and postnatal tobacco smoke exposure (TSE) on childhood lung function, as children are often exposed to both. OBJECTIVE: The goal of this study was to determine the association between current TSE and airflow obstruction while adjusting for self-reported prenatal TSE. METHODS: Children aged 6 to 11 years who participated in the National Health and Nutrition Examination Survey (2007 2012) who had serum cotinine levels measured and spirometry performed were included. Logistic regression was used to determine the association between log transformed serum cotinine level and airflow obstruction while adjusting for confounders; the analysis was then stratified according to asthma status. The final model included both log-transformed serum cotinine level and prenatal exposure as covariates. RESULTS: The sample consisted of 2,070 children; 9.6% had airflow obstruction. The association between cotinine levels and airflow obstruction was significant in an unadjusted analysis (OR, 1.12 [95% CI, 1.02 1.23]). In the multivariate analysis with both exposures included as covariates, serum cotinine level was not significantly associated with airflow obstruction (ORadj, 1.07 [95% CI, 0.94-1.21]), and no association was seen in children with asthma and nonasthmatic children. Prenatal smoking was associated with airflow obstruction in children with asthma (ORadj, 2.51 [95% CI, 1.08-5.79]) but not in nonasthmatic children (ORadj, 1.08 [95% CI, 0.53-2.18]). CONCLUSIONS: Current TSE was not independently associated with airflow obstruction in school-aged children. Prenatal TSE was associated with airflow obstruction in children with asthma. Repeated studies into potential mediators and confounders of this relationship are needed. PMID- 29037531 TI - Cytoreductive nephrectomy: A medical oncologist's perspective. AB - The role of cytoreductive nephrectomy (CN) was firmly established in the cytokine era on the basis of 2 randomized studies employing adjunctive interferon therapy. However, systemic therapy for metastatic renal cell carcinoma has evolved markedly over the past decade, with targeted therapies representing the standard of care in the front-line setting. The preponderance of retrospective data generated to date appears to suggest that the benefit of CN is maintained in the targeted therapy era. However, these studies are inherently prone to selection bias and cannot substitute prospective evidence. Herein, we discuss ongoing prospective studies evaluating CN and propose novel strategies to evaluate this surgical technique in the context of an evolving therapeutic landscape. PMID- 29037530 TI - A structured framework for optimizing surgical quality through process-of-care trials. AB - Increased national focus has been placed on care delivery processes and their effect on health care quality. At the institutional level, investigators are increasingly engaged in surgical process-of-care trials that, compared to traditional randomized treatment trials, more explicitly control and mitigate provider- and system-based risk. Process-of-care trials have the potential to improve patient care while also improving the culture of a surgical department, hospital, and system. PMID- 29037532 TI - Prediction of respiratory collapse among pediatric patients with mediastinal tumors during induction of general anesthesia. AB - PURPOSE: Fatality resulting from respiratory collapse (RC) during general anesthesia (GA) induction in children with mediastinal tumors has been reported. We explored potentially useful parameters for predicting the risk of RC based on objective imaging results. METHODS: We retrospectively reviewed the records of 31 patients (median age: 4years; range: 4months-15years) with mediastinal tumors treated between 2000 and 2015. Comparing those with RC under GA induction to those without (RC group vs. non-RC group), we analyzed a variety of factors that might predict respiratory obstruction during GA induction, including our new parameter, the standardized tumor volume (STV), which is adapted from the formula for the volume of an ellipsoid. RESULTS: All eight patients in the RC group had large tumors in the anterior mediastinum, including lymphoma, teratoma, and germ cell tumor. The mean STV value of the RC group was significantly larger than that of the non-RC group (3.6+/-1.4 vs. 1.4+/-1.0, p=0.006). Using an STV cut-off value of 2.5, the sensitivity and specificity for predicting RC under GA induction were both 0.86, making STV more useful than previously reported risk factors. CONCLUSION: Anterior mediastinal tumors in children can often cause airway obstruction under GA induction. Measuring STV can help predict the respiratory risk during GA among pediatric patients with anterior mediastinal tumors. LEVEL OF EVIDENCE: III. PMID- 29037534 TI - Biomechanical comparison of three different plate configurations for comminuted clavicle midshaft fracture fixation. AB - BACKGROUND: The aim of this study was to compare the fixation rigidity of anterior, anterosuperior, and superior plates in the treatment of comminuted midshaft clavicle fractures. METHODS: Six-hole titanium alloy plates were produced according to anatomic features of fourth-generation artificial clavicle models for anterior (group I; n = 14), anterosuperior (group II; n = 14), and superior (group III; n = 14) fixation. After plate fixation, 5-mm segments were resected from the middle third of each clavicle to create comminuted fracture models. Half the models from each group were tested under rotational forces; the other half were tested under 3-point bending forces. Failure modes, stiffness values, and failure loads were recorded. RESULTS: All models fractured at the level of the distalmost screw during the failure torque, whereas several failure modes were observed in 3-point bending tests. The mean stiffness values of groups I to III were 636 +/- 78, 767 +/- 72, and 745 +/- 214 N ? mm/deg (P = .171), respectively, for the torsional tests and 38 +/- 5, 20 +/- 3, and 13 +/- 2 N/mm, respectively, for the bending tests (P < .001 for group I vs. groups II and III; P = .015 for group II vs. group III). The mean failure torque values of groups I to III were 8248 +/- 2325, 12,638 +/- 1749, and 10,643 +/- 1838 N ? mm (P = .02 for group I vs. II), respectively, and the mean failure loads were 409 +/- 81, 360 +/- 122, and 271 +/- 87 N, respectively (P = .108). CONCLUSIONS: In the surgical treatment of comminuted midshaft clavicle fractures, the fixation strength of anterosuperior plating was greater than that of anterior plating under rotational forces and similar to that of superior plating. PMID- 29037535 TI - Performance of implant sonication culture for the diagnosis of periprosthetic shoulder infection. AB - BACKGROUND: Diagnosing infection after shoulder arthroplasty can be a challenge because of the high prevalence of low-virulence organisms, such as Propionibacterium acnes. The purpose of this study was to evaluate the utility of implant sonication fluid cultures in the diagnosis of periprosthetic joint infection compared with standard culture techniques in patients undergoing revision shoulder arthroplasty. METHODS: Routine perioperative testing was performed in 53 patients who underwent revision shoulder arthroplasty. In addition to routine tissue and fluid culture, the retrieved shoulder implants underwent sonication with culture of the sonicate fluid. Diagnostic performance of implant sonication culture was determined on the basis of previously defined infection criteria and compared with standard intraoperative cultures. RESULTS: Of the 53 revision cases that underwent implant sonication fluid culture, 25 (47%) were classified as infected. Intraoperative culture (tissue and fluid) sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy were 96%, 75%, 77%, 95%, and 85%, respectively. Using a cutoff of >20 colony-forming units per milliliter to exclude contaminants, the sensitivity, specificity, PPV, NPV, and accuracy of implant sonicate culture were 56% (P < .001, compared with standard intraoperative cultures), 93% (P = .07), 88% (P = .4), 70% (P = .02), and 75% (P = .22), respectively. Without use of a sonication fluid culture cutoff value, the sensitivity, specificity, PPV, NPV, and accuracy of implant sonicate culture were 96% (P = 1.0, compared with standard intraoperative cultures), 64% (P = .38), 71% (P = .53), 95% (P = .9), and 79% (P = .45). CONCLUSIONS: Implant sonication fluid culture in revision shoulder arthroplasty showed no significant benefits over standard intraoperative cultures in diagnostic utility for periprosthetic joint infection. PMID- 29037533 TI - Continuous tamoxifen delivery improves locomotor recovery 6h after spinal cord injury by neuronal and glial mechanisms in male rats. AB - No treatment is available for patients with spinal cord injury (SCI). Patients often arrive to the hospital hours after SCI suggesting the need of a therapy that can be used on a clinically relevant window. Previous studies showed that Tamoxifen (TAM) treatment 24h after SCI benefits locomotor recovery in female rats. Tamoxifen exerts beneficial effects in male and female rodents but a gap of knowledge exists on: the therapeutic window of TAM, the spatio-temporal mechanisms activated and if this response is sexually dimorphic. We hypothesized that TAM will favor locomotor recovery when administered up-to 24h after SCI in male Sprague-Dawley rats. Rats received a thoracic (T10) contusion using the MACSIS impactor followed by placebo or TAM (15mg/21days) pellets in a therapeutic window of 0, 6, 12, or 24h. Animals were sacrificed at 2, 7, 14, 28 or 35days post injury (DPI) to study the molecular and cellular changes in the acute and chronic stages. Immediate or delayed therapy (t=6h) improved locomotor function, increased white matter spared tissue, and neuronal survival. TAM reduced reactive gliosis during chronic stages and increased the expression of Olig-2. A significant difference was observed in estrogen receptor alpha between male and female rodents from 2 to 28 DPI suggesting a sexually dimorphic characteristic that could be related to the behavioral differences observed in the therapeutic window of TAM. This study supports the use of TAM in the SCI setting due to its neuroprotective effects but with a significant sexually dimorphic therapeutic window. PMID- 29037537 TI - Validation of two Chinese-version pain observation tools in conscious and unconscious critically ill patients. AB - OBJECTIVES: To compare the construct validities of the Chinese-versions Critical Care Pain Observation Tool and Behavioural Pain Scale as measures of critically ill patients' pain by (a) discriminant validation of behavioural scales and vital signs (e.g. heart rate and mean arterial pressure) during a non-nociceptive procedure (noninvasive blood pressure] assessment) and a nociceptive procedure (endotracheal suctioning), (b) criterion validation of behavioural scales and vital signs with patients' self-reported pain and (c) testing the interrater reliability of both scores. RESEARCH METHODOLOGY/DESIGN: In this crossover, observational study, pain responses of 316 critically ill patients (213 conscious; 103 unconscious) were measured by both the Critical Care Pain Observation Tool and the Behavioural Pain Scale scores, vital signs and self report (if conscious) during noninvasive blood pressure assessment and endotracheal suctioning procedures. Interrater reliability was tested in nociceptive procedures of a pilot study on 20 critically ill patients. Data were analysed by descriptive statistics, multiple logistic regression analysis and receiver-operating characteristic curves. SETTING: A medical intensive care unit in a regional teaching hospital in northern Taiwan. RESULTS: Patients' self reported pain was predicted by total Critical Care Pain Observation Toolscores (odds ratio=1.93, p<0.01) and total Behavioural Pain scores (odds ratio=1.83, p<0.01) but not by vital signs after controlling for patients' demographic and clinical characteristics. Moreover, Chinese-versions had areas under the receiver operating characteristic curve of 76.4% and 73.1%, respectively, indicating good ability to detect pain. CONCLUSIONS: The Chinese-versions of the Critical care Pain Observation Toll and Behavioural Pain Score have good construct validity and can sensitively discriminate when critically ill patients experience pain or no pain. PMID- 29037536 TI - Open reduction and internal fixation for nonunion of extra-articular distal humeral fractures in patients 70 years and older. AB - HYPOTHESIS: The study purpose was to report the clinical and radiologic outcomes of osteosynthesis by open reduction and internal fixation for nonunion of extra articular distal humeral fractures in patients aged 70 years or older. MATERIALS AND METHODS: This retrospective study included 28 patients who received osteosynthesis treatment between March 2010 and December 2015. Primary conservative treatment had failed in all patients. All surgical procedures were performed via the posterior approach without olecranon osteotomy and with the use of double-locking plates for each column. RESULTS: The mean patient age was 72 years, and surgical procedures were performed a mean of 7.6 months after injury. Preoperatively, extension-flexion was 32 degrees to 101 degrees and forearm pronation-supination was 74 degrees to 47 degrees . The mean visual analog scale score was 4; the mean Mayo Elbow Performance Score was 50; and the mean Disabilities of the Arm, Shoulder and Hand score was 58. All cases showed proper union after a mean of 5.2 months. At the final follow-up examination, the extension-flexion and rotation arcs had improved significantly (to 20 degrees to 124 degrees and to 80 degrees to 66 degrees , respectively; both P < .001), and all clinical scores were satisfactory (visual analog scale score, 1; Mayo Elbow Performance Score, 65; and Disabilities of the Arm, Shoulder and Hand score, 24; all P < .001). Ulnar nerve transposition was performed in 7 patients, and no distinct ulnar nerve symptom was observed in any patient at the final follow-up examination. CONCLUSIONS: We consider osteosynthesis by open reduction and internal fixation as a recommended option for extra-articular distal humeral fractures in elderly patients aged 70 years or older in whom conservative treatment has failed. PMID- 29037538 TI - Glucose trajectories in cystic fibrosis and their association with pulmonary function. AB - BACKGROUND: The prevalence of cystic fibrosis-related diabetes is increasing. This condition is potentially responsible for respiratory decline. METHODS: At inclusion, then yearly (over three years), 111 children and 117 adults with cystic fibrosis had oral glucose tolerance and insulin tests at one (G1) and 2h (G2). KmL analysis identified homogeneous G1 and G2 glucose trajectories. A linear mixed model quantified the relationships between trajectories and FEV1 changes. RESULTS: In children, there were three G1 and four G2 trajectories and FEV1 decrease was not significantly different between G1 or G2 trajectories. In adults, two G1 and four G2 trajectories were identified and FEV1 change was estimated at -0.85/year (95% CI: [-1.54; -0.17], p=0.01) whatever the G1 trajectory and found significantly faster in the high and increasing G2 trajectory (-2.1/year, [-3.9; -0.2], p=0.03). CONCLUSIONS: In case of persistent G2 abnormality, physicians should be alert for clinical deterioration and intensify patient surveillance. PMID- 29037539 TI - Outstanding female cancer research paper awards of the 2016 Taiwan Association of Obstetrics and Gynecology and Hsu Chien-Tien Cancer Foundation. PMID- 29037540 TI - Do pregnant women with asymptomatic bacteriuria need treatment? PMID- 29037541 TI - Zika virus: An emerging challenge for obstetrics and gynecology. AB - Microcephaly is a rare birth defect, however, the re-emerging mosquito and sexual transmitted flavivirus, Zika virus (ZIKV), had changed the situation and caused an urgent challenge for the obstetrics and gynecology. This review will brief summarize the epidemiology and virology of ZIKV. And compared the animal models that had developed for the ZIKV infections. These animal models will be benefit for the development of vaccines and anti-ZIKV drugs. Furthermore, the genes that are involved in the causation of microcephaly were also summarized. Finally, the Wnt signal is critical for the brain development as well as innate immune response. Based on previous literatures, we proposed that ZIKV-induced microcephaly might result from the influence of Wnt/beta-catenin signaling pathway through the regulation of miRNA-34. PMID- 29037542 TI - Preeclampsia: A review of the pathogenesis and possible management strategies based on its pathophysiological derangements. AB - This review is divided into three parts. The first part briefly describes the pathogenesis of preeclampsia. This is followed by reviewing previously reported management strategies of the disease based on its pathophysiological derangements. Finally, the author defines the safe and acceptable methods/medications that may be used to 'prevent' preeclampsia (in high risk patients) and those that may be used to 'treat' preeclampsia (meant to prolong the pregnancy in patients with established preeclampsia). The review concludes that multi-center trials are required to include multiple drugs in the same management protocol. PMID- 29037543 TI - Amniopatch treatment for preterm premature rupture of membranes before 23 weeks' gestation and factors associated with its success. AB - OBJECTIVE: The purpose of this study is to investigate the factors associated with successful amniopatch treatment in patients with iatrogenic preterm premature rupture of membranes (iPPROM) or spontaneous PPROM (sPPROM) before 23 weeks' gestation. MATERIALS AND METHODS: This cohort study included 28 women who received amniopatch treatment due to iPPROM or sPPROM at 15-23 weeks' gestation. Patients' clinical characteristics before performing the amniopatch, factors associated with the procedure, pregnancy and neonatal outcomes were compared between the iPPROM and sPPROM groups, and also between the successful and failed groups. RESULTS: The amniopatch was successful in 6 of 28 patients (21.4%) with a success rate of 36.4% (4/11) and 11.8% (2/17) in the iPPROM group and sPPROM group (P = 0.174), respectively. The success group had a longer PPROM-to-delivery interval, fewer cases of clinical chorioamnionitis, larger birth weight, and lower neonatal intensive care unit admission rate than the failed group. The success rate of amniopatch procedure was proportional to maximal vertical pocket prior to procedure, which showed statistically significant association (adjusted odds ratio: 3.62, 95% confidence interval: 1.16-11.31, P = 0.027). CONCLUSION: The amniopatch treatment success rate was higher in the iPPROM group than the sPPROM group, but was not statistically significant. The neonatal outcome was more favorable when the amniopatch was successful. However, the only predictive factor associated with successful amniopatch was a larger amniotic fluid volume before the procedure. PMID- 29037544 TI - Effects of pushing techniques during the second stage of labor: A randomized controlled trial. AB - OBJECTIVE: Spontaneous pushing is a method that is used in the management of the second stage of labor and suggested to be more physiological for the mother and infant. The present study aims to evaluate the effects of pushing techniques on the mother and newborn. MATERIALS AND METHODS: This randomized prospective study was performed between June 2013-March 2014 in a tertiary maternity clinic in Istanbul. 80 low risk, nulliparous cases were randomized to pushing groups. Valsalva pushing group was told to hold their breath while pushing. No visual verbal instructions were given to spontaneous pushing group and they were encouraged to push without preventing respiration. Demographic data, second stage period, perineal laceration rates, fetal heart rate patterns, presence of meconium stained amniotic liquid, newborn APGAR scores, POP-Q examination and Q tip test results were evaluated in these cases. RESULTS: The second stage of labor was significantly longer with spontaneous pushing. Decrease in Hb levels in valsalva pushing group was determined to be higher than spontaneous pushing group. An increased urethral mobility was observed in valsalva pushing group. CONCLUSIONS: Although the duration of the second stage of labor was longer compared to valsalva pushing technique, women were able to give birth without requiring any verbal or visual instruction, without exceeding the limit value of two hours and without affecting fetal wellness and neonatal results. PMID- 29037545 TI - Perineal length among Vietnamese women. AB - OBJECTIVE: Vietnamese clinicians routinely perform episiotomies in the belief that 3rd-4th degree tears may be prevented, based partly on the view that Vietnamese women have a short perineal length that puts them at increased risk of tears. However, there is no evidence to suggest Vietnamese women have a short perineum compared with other populations. We aimed to determine the mean perineal length among Vietnamese women in early labor and in the second stage, and to compare this to findings from similar studies in other populations. MATERIALS AND METHODS: We undertook an observational study in a tertiary obstetric hospital in Vietnam from October 2014 to June 2015. Pregnant women who presented in early labor with a live singleton cephalic presentation at >=37 weeks gestation were eligible. Perineal length was measured early in the 1st stage of labor (<=4 cm dilation) and in 2nd stage of labor (10 cm dilation). Mean perineal length was compared to other populations using t-tests. RESULTS: Of 395 women, 159 (40.3%) were nulliparous and 236 (59.8%) multiparous. Overall the mean perineal length in early labor was 3.4 cm (+/-0.4), and did not differ by parity. Mean perineal length among Vietnamese women was significantly shorter (P < 0.001) than other populations (means 3.8-4.6 cm). Among 365 women who reached 2nd stage the mean perineal length was 4.3 cm (+/-0.6). CONCLUSION: The perception that Vietnamese women have a relatively shorter perineal length appears to have some basis and outcomes reported from episiotomy trials may not be generalizable to Vietnamese women. PMID- 29037546 TI - Acceptance towards giving birth to a child with beta-thalassemia major - A prospective study. AB - OBJECTIVE: To explore the acceptance of pregnant Chinese women on giving birth to a child with beta-thalassemia major. MATERIALS AND METHODS: Women's acceptance on having a child with beta thalassemia major was assessed using standard gamble metrics during an interviewer-administered survey on 309 women recruited in the antenatal clinic. Utility scores were determined and the association with sociodemographic factors was assessed. RESULTS: The median utility score for having a child with beta-thalassemia major was 0.5 (0-0.65). Women having either higher educational level or family income had significantly higher utility scores (P < 0.05) corresponding to a higher acceptance. During the interview 59.9% participants indicated that they would elect to undergo a termination of pregnancy if their fetus was diagnosed with beta-thalassemia major but 26.5% participants were unable to decide what action they would take. CONCLUSION: Many Chinese pregnant women are ambivalent about giving birth to a baby with beta thalassemia major. Women with higher educational level or higher family income had a higher acceptance towards the condition. PMID- 29037547 TI - Prenatal diagnosis of umbilical cord cyst: Clinical significance and prognosis. AB - OBJECTIVE: Clarify the prognosis of the prenatal ultrasound diagnosis of umbilical cord cysts at any gestation trimester and to assess the ultrasound findings and chromosomal alterations associated to this entity. MATERIALS AND METHODS: Between 2003 and 2015 a multicenter study was carried out, collecting, in five centers in Spain, the associated findings and perinatal outcomes of 27 cases of umbilical cord cysts, regardless of gestational age of diagnosis. A bibliographic review was conducted to identify previous studies in order to compare them with our data. RESULTS: In our sample, the prognosis of this finding and the neonatal outcome, when isolated, is favorable, regardless of gestational age at diagnosis, multiple or unique presentation or vanishing or persistent cysts. CONCLUSIONS: It is important to properly assess the umbilical cord cyst and when is diagnosed, it is recommended to conduct a meticulous ultrasound examination searching for other associated malformations. In our study the prognosis of this finding seems to be favorable when isolated. Also, there is no relation between prognosis and gestation weeks at diagnosis. On the other hand, when we find this entity with associated anomalies, it is recommended to assess the need to carry out a karyotype. PMID- 29037548 TI - Pathological discrepancy between colposcopic directed cervical biopsy and Loop Electrosurgical-Excision Procedures (LEEPs) in patients with biopsies proven high grade cervical intraepithelial neoplasia. AB - OBJECTIVE: To determine the prevalence of patients with CIN1 or less from LEEP specimens in patients with colposcopic biopsy proven CIN2 or 3. MATERIALS AND METHODS: This study was a retrospective-descriptive chart review. Clinical data were retrieved from medical records of women with CIN2 or 3 from colposcopic biopsy who subsequently underwent LEEP procedure between 2004 and 2014. All pathological slides were reviewed by the gynecologic pathologist. Statistical analyses were performed. RESULTS: Of 210 patients, 14 patients were excluded from the study. 196 patients were in eligible criteria and data were analyzed. There were 32 patients (16.3%) with CIN1 or less from LEEP specimens who previously had colposcopic biopsies proven CIN2 or 3. Only CIN2 from biopsy was the statistically significant risk factor of CIN1 or less in LEEP specimens. Odds ratio was 10.45 (95% confidence interval: 3.28-33.33, P < 0.001). CONCLUSION: The prevalence of patients with CIN1 or less from LEEP specimens who previously had colposcopic biopsies proven CIN2 or 3 was 16.3%. CIN2 from biopsy was the statistically significant risk factor of CIN1 or less in LEEP specimens. PMID- 29037549 TI - Long-term outcome of pregnancy complicating with severe aplastic anemia under supportive care. AB - OBJECTIVES: Pregnancy associated with aplastic anemia (AA) is a rare and heterogeneous disorder. We aimed to identify and evaluate the maternal and pregnant outcomes of pregnancy-associated severe AA treated with supportive care. MATERIALS AND METHODS: A 25-year retrospective study was conducted at in a single center between 1990 and 2014 with pregnancy associated severe AA. In addition, relevant published cases of antenatally diagnosed pregnancy-associated severe AA after 1990 were identified by PubMed. The main goal was to determine the impact of various risk factors on maternal and fetal outcomes. RESULTS: 15 women with 18 pregnancies were enrolled. With addition of the published reports in literature, a total of 36 cases were included for reference review. Univariate analysis showed that low platelet counts (<2.0 * 109/L), bone marrow hypocellularity (<25%), and late diagnosis during pregnancy were predictors of poor maternal outcomes (P < 0.05). The complication rate of pregnancy outcomes was 53.3%, including preterm delivery, small gestational age (SGA), preterm premature ruptured of membranes (PPROM) and preeclampsia. CONCLUSIONS: This study identified the risk factors of mortality and morbidity in pregnant women with severe AA, as well as the obstetrical complications associated with neonatal outcome. PMID- 29037550 TI - Temporal availability of obstetrics and gynecology clinics in Taiwan: A nationwide survey. AB - OBJECTIVE: Obstetrician-gynecologists are the main providers of women's healthcare. However, workforce shortages and excessive workloads among these providers have been encountered in many countries. While most past studies on this subject have investigated the spatial distribution of obstetrics-gynecology clinics, few have focused on their temporal availability, especially on the national level. MATERIALS AND METHODS: The weekly opening time schedules (divided into morning, afternoon, and evening sessions) of all obstetrics-gynecology clinics in Taiwan were extracted from the web site of Taiwan's National Health Insurance Administration in July 2015. The numbers of open sessions were then analyzed and stratified by urbanization level and practice type. RESULTS: Among 742 obstetrics-gynecology clinics in Taiwan, 521 were located in urban areas, 194 in suburban areas, and 27 in rural areas. The numbers of open sessions per week in suburban areas were higher than those in urban and rural areas (16.7 +/- 2.6 vs. 15.9 +/- 3.1 and 15.9 +/- 2.7). Group practices had more open sessions per week than solo practices (16.8 +/- 2.8 vs. 15.8 +/- 3.0). With respect to after hours services in rural areas, only two rural obstetrics-gynecology clinics remained open on Sunday mornings, while none remained open on Sunday afternoons and evenings. CONCLUSION: Obstetrics-gynecology clinics in Taiwan offered great temporal availability. In addition to the remarkable urban-rural disparity in the distribution of obstetrics-gynecology clinics, the availability of services on Sundays in rural areas demands special attention. PMID- 29037551 TI - Ductus venosus Doppler and the postnatal outcomes of growth restricted fetuses with absent end-diastolic blood flow in the umbilical arteries. AB - OBJECTIVE: We aimed to evaluate the outcomes of growth-restricted fetuses with absent end-diastolic velocity in the umbilical arteries (UA-AEDV), and investigate the relationship between Doppler flow velocity waveforms in the ductus venosus (DV) and the clinical features. MATERIALS AND METHODS: This was a retrospective study of growth-restricted fetuses diagnosed with UA-AEDV delivered at our institution between 2013 and 2015. The time from diagnosis of UA-AEDV to delivery, postnatal survival, and developmental prognoses were the primary outcomes. The time lag between the occurrence of UA-AEDV and an abnormal increase in the DV pulsatility index (DV-PI) were investigated. We also examined the correlation between the DV-PI values immediately before birth and umbilical cord arterial pH at birth. RESULTS: The median gestational age at birth among the 18 subjects was 28+2 (24+0-34+6) weeks, and the observation period between the first detection of UA-AEDV and delivery ranged from 0 to 35 days with a median of 8 days. Among the 18 infants, 15 (83%) survived, among whom 2 were diagnosed with a developmental disability. Gestational age at delivery was significantly lower in the poor outcome group. A positive correlation (correlation coefficient, 0.68) was observed between the umbilical artery pH and the last measured DV-PI. CONCLUSION: The time interval from initial detection of UA-AEDV to delivery is highly variable, and it is reasonable to manage these growth-restricted fetuses with UA-AEDV expectantly with careful surveillance for fetal well-being. Specifically, Doppler DV analysis is clinically valuable for their evaluation. PMID- 29037552 TI - The impact of prenatal group B streptococcus screening as a national health policy in Taiwan. AB - OBJECTIVE: There was no national data on group B streptococcus (GBS) infections in Taiwan. Until 2012, when prenatal GBS screening was introduced to obstetric practices as a national health policy aimed at reducing neonatal GBS infections. The purpose of this study was to examine the impact of this national health policy on the incidence of maternal GBS colonization and neonatal GBS infection rate. Relatedly, the clinical characteristics of neonatal GBS infection were investigated to determine the correlations between the incidence of maternal GBS colonization and the neonatal GBS infection rate. MATERIALS AND METHODS: This population-based nationwide study used data for 2012-2013 from the National Health Insurance Research Database of Taiwan. A total of 789 newly diagnosed pregnant women with genital GBS infection were recruited. RESULTS: The maternal GBS screening rate was 93.2%. The maternal colonization rate of GBS was around 8.2%, and the incidence of neonatal GBS infection was 22.6%. The data indicate that no sepsis was developed in any of the cases, while fever was found in 3 cases (3/179, 1.7%) and UTI was found in 1 case (1/179, 0.6%). CONCLUSIONS: We conclude that a policy calling for universal maternal rectovaginal cultures for GBS with intrapartum antibiotic prophylaxis is a good national policy for reducing morbidity due to GBS infections in neonates in Taiwan. PMID- 29037553 TI - Association of miR-146a rs2910164 and miR-222 rs2858060 polymorphisms with the risk of polycystic ovary syndrome in Iranian women: A case-control study. AB - OBJECTIVE: Today, many single nucleotide polymorphisms in microRNA genes are known to alter the microRNA expression levels or processing causing susceptibility of several human diseases. The present study aimed to investigate the association of microRNA-146a (rs2910164) and microRNA-222 (rs2858060) polymorphisms with susceptibility to polycystic ovary syndrome (PCOS) in an Iranian population. MATERIALS AND METHODS: This case-control study was performed on 205 patients with PCOS and 205 normal women as the control group. After DNA extraction, Tetra-amplification refractory mutation system polymerase chain reaction (T-ARMS-PCR) was used to detect the polymorphisms. The association between genotypes and the risk of PCOS was examined by odds ratios (OR) and 95% of confidence intervals (CIs). RESULTS: Our results showed that there are significant differences in CG genotype frequencies between case and control groups regarding miR-146a rs2910164 polymorphism (OR = 2.03, CI = 1.3-3, P = 0.001). In a dominant model for the C allele, CC + CG genotypes were associated with PCOS risk (OR = 2, 95% CI = 1.3-2.9, P = 0.001) and the C allele increased the risk of PCOS (OR = 1.6, 95% CI = 1.1-2.1, P = 0.004). Furthermore, a positive association was observed between miR-222 CG genotype and the risk of PCOS (OR = 2.2, 95% CI = 1.1-4.1, P = 0.02). These results were evident after adjustment for age and body mass index. CONCLUSION: The present results suggest that the miR 146a rs2910164 and miR-222 rs2858060 polymorphisms are associated with an increased risk of PCOS. Therefore, both polymorphisms could play an important role as a genetic risk factor for development of PCOS in the Iranian population. PMID- 29037554 TI - The role of resveratrol on full - Thickness uterine wound healing in rats. AB - OBJECTIVE: Healing of the uterus after cesarean section and myomectomy operation is clinically important. In this study, we aimed to investigate the effects of resveratrol (3,5,4'-o-trihydroxystilbene) on the wound healing process of the uterus in rats treated with resveratrol following full thickness injury of the uterus. MATERIALS AND METHODS: Twenty-one female wistar albino rats were divided randomly into three groups (1) control group with no intervention (2) injury group with uterine full thickness injury (3) resveratrol group with uterine full thickness injury and treated with resveratrol. Resveratrol was injected by oral gavage at the doses of 0.5 mg/kg/day for 30 days following uterine full thickness injury. Vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF) distributions were assessed using the immunohistochemical methods in tissue and ELISA methods in the tissue homogenate. Glutathione peroxidase (GPx) and superoxide dismutase (SOD) activities were evaluated with colorimetric method and malondialdehyde (MDA) levels also were measured using high performance liquid chromatography in the tissue homogenate. The effects of resveratrol on the uterine histology also were evaluated histologically with the light microscopy. RESULTS: Histological evaluation and immunohistochemical evaluations showed that treatment with a resveratrol significantly increased the thickness of the uterine wall and VEGF expression and decreased expression PDGF during wound healing. Biochemically, GPx and SOD activities were increased significantly after treatment with resveratrol. Additionally, resveratrol administration decreased MDA levels. CONCLUSION: These results showed that the antioxidant effects of resveratrol has been shown to have a positive influence on wound healing of the uterus. PMID- 29037555 TI - A genome-wide comparison of mesenchymal stem cells derived from human placenta and umbilical cord. AB - OBJECTIVE: The human umbilical cord and placenta have been considered as attractive alternative sources for noninvasive isolation of human mesenchymal stem cells (hMSCs). Different sources of MSC may have individual differentiation potential and phenotype. In this study, we compared the genome-wide expression data of umbilical cord and placenta derived hMSCs to identify specific differential expression genes (DEGs) and corresponding functions. MATERIALS AND METHODS: We collected human placental tissues and umbilical cord from healthy full-term placenta (n = 17). The genome-wide gene expression data of hMSCs were used to analyze and compare with that of fibroblasts. We identified the differential expression genes (DEGs) based on the Student's t-test and one-way ANOVA. RESULTS: According to the DEGs of umbilical cord and placenta, we used the Venn diagram to evaluate the consistence and specific genes. There are 390 umbilical cord specific DEGs which functions are related to movement of sub cellular component. Then, the DEGs derived from placenta have two major clusters (i.e., placenta-specific (AM-CM-specific) and UC-like (UC-CD-specific)). 247 placenta-specific DEGs are down-regulated and involved in cell communication. 278 UC-like genes are up-regulated and are involved in the cell cycle, cell division, and DNA repair process. Finally, we also identified 239 umbilical cord-placenta consistence DEGs. According to the umbilical cord-placenta consistence DEGs, 175 genes are down-regulated and involved in cell death, cell growth, cell developmental processes. CONCLUSION: We identified the consistence and specific DEGs of human placenta and umbilical cord based on the genome-wide comparison. Our results indicated that hMSCs derived from umbilical cord and placenta have different gene expression patterns, and most of specific genes are involved in the cell cycle, cell division, cell death, and cell developmental processes. PMID- 29037556 TI - Transcutaneous electrical acupoint stimulation (TEAS) treatment improves pregnancy rate and implantation rate in patients with implantation failure. AB - OBJECTIVE: Although major advances have greatly improved the outcomes of assisted reproductive technology in the last two cascades, there remains significant difficulty in achieving pregnancy for many patients even after repeated attempts of IVF. Interestingly, recent studies have shown that transcutaneous electrical acupoint stimulation (TEAS) can improve the reproductive outcomes of select IVF patients. To determine the utility of TEAS in improving IVF outcomes in patients with a history of implantation failure, we conducted a retrospective study of clinical outcomes of women, who had a prior history of unsuccessful pregnancy outcome after IVF-embryo transfer (IVF-ET), following TEAS treatment. MATERIALS AND METHODS: A total of 25 patients, who had failed to conceive after multiple IVF cycles in which good embryos were transferred, received noninvasive low frequency TEAS treatment prior to and during an IVF-ET cycle. The clinical outcomes, including biochemical pregnancy rate, clinical pregnancy rate and implantation rate, were compared to those of prior cycles which received only standard IVF treatment. RESULTS: Analysis of reproductive outcomes showed that implantation rate and clinical pregnancy rate increased significantly in IVF cycles that included the TEAS treatment when compared to prior cycles that received only the standard IVF treatment in this cohort of patients. CONCLUSIONS: This surprising finding indicated that TEAS treatment is a promising technique to improve reproductive outcomes in difficult cases of IVF-ET. Because TEAS treatment is noninvasive and has high reproducibility, and can be applied with limited training, further refinement of this procedure would not only substantiate the beneficial effects of TEAS, but also allow the technique to be more effective and reproducible. PMID- 29037557 TI - Prenatal diagnosis of isochromosome 20q in a fetus with vertebral anomaly and rocker-bottom feet. AB - OBJECTIVE: Isochromosome of the long arm of chromosome 20 (i(20q)) is a rare structural abnormality in prenatal diagnosis. Thirty prenatal cases of mosaic i(20q) have been reported, among which only four are associated with fetal malformations. We describe a new prenatal case of i(20q) with fetal malformations. MATERIALS AND METHODS: We also observed a discrepancy between uncultured and cultured amniotic fluid cells by using conventional cytogenetic, fluorescence in situ hybridization and array-SNP analysis. RESULTS: The short arm deletion of chromosome 20 arising from the isochromosome encompassed two candidate genes PAX1 and JAG1 involved in cranio-facial and vertebral development. CONCLUSION: The data would allow establishing a phenotype-genotype correlation. Thus, we proposed to define a recognizable syndrome combining cranio facial dysmorphism, vertebral bodies' anomalies, feet and cerebral malformations. PMID- 29037558 TI - Monozygotic twins discordant for trisomy 21: Discussion of etiological events involved. AB - OBJECTIVE: To elucidate the etiologies of discordant trisomy 21 in monozygotic twin pregnancy. CASE REPORT: A monochorionic diamniotic twin pregnancy with hydrops and cleft lip (twin 1) found in one fetus presented at gestational age of 17 weeks. Amniotic fluid karyotyping showed nonmosaic trisomy 21 in twin 1 (47, XY, +21 [20]) and a normal karyotype in twin 2 (46, XY [20]). Short tandem repeat (STR) polymorphism markers revealed that the two fetuses were monozygotic, and the two chromosomes 21 were maternal isodisomy in the trisomy fetus. The chromosomal constitution of placentas in the territory of trisomy 21 cotwin was 47, XY, +21 [20] and was a mosaic 47, XY+21 [12]/46, XY [8] in the normal karyotyped twin. CONCLUSION: Our case of monozygotic twin with discordant trisomy 21 might start with a prezygotic maternal meiosis II non-disjunction error-caused trisomy 21 zygote, and after twinning, one remained trisomy 21, and the other twin underwent trisomy rescue and became a mosaic trisomy 21 in morula or early blastocyst stage before the formation of pre-embryo, which subsequently resulted in mosaic trisomy 21 of the placental tissue and normal chromosomal constitution of the fetus. PMID- 29037559 TI - Noninvasive prenatal diagnosis for X-linked disease by maternal plasma sequencing in a family of Hemophilia B. AB - OBJECTIVE: To apply a Hidden Markov Model to test Hemophilia B in a fetus by maternal plasma sequencing only employing proband and maternal haplotypes. CASE REPORT: A family at risk for Hemophilia B was recruited in this study. We performed genetic diagnosis on the proband using our targeted capture system (containing F9 gene coding region, highly heterozygous SNPs and a 13-kb chromosome Y specific region), and revealed a causative F9 gene mutation (c.190T>C, p.Cys64Arg). Maternal plasma cell-free DNA obtained at 8 weeks of gestation was targeted-captured and sequenced using the customized system. The fetus inherited the F9 (c.190T>C, p.Cys64Arg) mutation according to the Hidden Markov Model. The mother continued the pregnancy. CONCLUSIONS: This study is the first report of a haplotype-based approach in NIPD of Hemophilia B. With further evaluation, this method might be useful for NIPD of Hemophilia B and for other X linked single-gene disorders. PMID- 29037560 TI - Application of non-invasive prenatal testing in late gestation in a pregnancy associated with intrauterine growth restriction and trisomy 22 confined placental mosaicism. AB - OBJECTIVE: We present the application of non-invasive prenatal testing (NIPT) in late gestation in a pregnancy associated with intrauterine growth restriction (IUGR) and trisomy 22 confined placental mosaicism (CPM). CASE REPORT: A 35-year old pregnant woman underwent chorionic villus sampling (CVS) at 12 weeks of gestation. The pregnancy was conceived by in vitro fertilization and intracytoplasmic sperm injection. CVS revealed a karyotype of 47,XY,+22 in all of 15 cultured chorionic villi cells. Array comparative genomic hybridization analysis on uncultured chorionic villi revealed a result consistent with trisomy 22. The woman underwent amniocentesis at 17 weeks of gestation. Amniocentesis revealed a karyotype of 46,XY in all 20 colonies of cultured amniocytes. Additional polymorphic DNA marker analysis excluded uniparental disomy 22. The parental karyotypes were normal. Prenatal ultrasound at 23 weeks of gestation revealed fetal retrognathia, IUGR and a calcified placenta. NIPT at 27 weeks of gestation using maternal plasma cell-free DNA analysis showed a chromosome Z score of 5.74 for chromosome 22 (the Z-score for each pair of chromosomes is defined as "increased" if >3), indicating an abnormal placenta with trisomy 22 CPM leading to IUGR in the fetus. At 36 weeks of gestation, a 1754-g male fetus was delivered with cleft palate and imperforate anus but no other phenotypic abnormalities. The cord blood had a karyotype of 46,XY (40/40 cells), the umbilical cord had a karyotype of 47,XY,+22[9]/46,XY[31], and the placental tissues had a karyotype of 47,XY,+22[15]/46,XY[25]. CONCLUSION: NIPT in late gestation is useful in detection of placental abnormality associated with CPM and IUGR but a normal karyotype at amniocentesis. PMID- 29037561 TI - Repeated pregnancy with concomitant presence of ovarian teratoma: A case report and literature review. AB - OBJECTIVE: Benign mature teratoma during pregnancy is common, mostly discovered incidentally by antenatal sonography. However, repeated pregnancy coincident with ovarian mature teratoma is rarely reported. The cases of teratoma with rapid growing characteristics are even more unique. CASE REPORT: A 17-year-old woman was pregnant at 6 weeks of gestation with a left ovarian teratoma. She underwent artificial abortion followed by surgical removal of the teratoma. However, eleven years after the surgery, a right ovarian teratoma was found incidentally by antepartum sonography at 21 weeks of gestation. The right ovarian teratoma developed uneventfully, with rapid growth during pregnancy. Abdominal delivery at term was accomplished without any complication. CONCLUSION: Younger patients and patients with bilateral or large size dermoid cysts should be followed up closely. Further studies are needed for better understanding of its natural clinical course and the mechanism of progression. The treatment options should be made individually, weighing the risks of torsion, rupture, or obstruction of labor versus the potential for unnecessary surgical risk to mother and fetus. PMID- 29037562 TI - Dandy-Walker syndrome with duplex kidney abnormalities in trisomy 18 - A rare case report. AB - OBJECTIVE: Trisomy 18 is one of the major numerical chromosomal disorders. The incidence of trisomy 18 is approximately one in 6000 live births. Dandy-Walker malformation (DWM) is the most common congenital malformation of the cerebellum, with an incidence of about one in 5000 live births. The incidence of trisomy 18 associated with DWM is rare and long-term survival rate is very low. CASE REPORT: A case involving a 39-year-old pregnant female with a case of trisomy 18 associated with DWM. CONCLUSION: The incidence of trisomy 18 associated with DWM is rare, and our report presents an unusual case that supplements our knowledge of this condition. We report a case involving a 39-year-old pregnant female with a case of trisomy 18 associated with Dandy-Walker malformation (DWM). Fetal ultrasonography showed hypoplasia of the cerebellar vermis and dilatation of the fourth ventricle and was characterized by an enlarged posterior fossa. Fetal magnetic resonance imaging showed inferior vermian hypoplasia and a large posterior fossa cyst communicating with the fourth ventricle causing high insertion of the torcular herophili, which was compatible with DWM. Furthermore, the karyotyping report revealed trisomy 18. The incidence of trisomy 18 associated with DWM is rare, and our report presents an unusual case that supplements our knowledge of this condition. PMID- 29037563 TI - Management of pregnancy in pancreas alone transplant recipient complicated with stage-4 chronic renal insufficiency and superimposed pre-eclampsia: Case report and literature review. AB - OBJECTIVE: With the prolonged life expectancy in solid organ transplant recipients, their quality of life and fertility desire become of particular concern. Pregnancy in pancreas-alone transplantation, although rare and complicated to manage, is not impossible anymore. We here report such a case with literature review to address this issue. CASE REPORT: A 29-year-old, primigravida patient with underlying stage 4 chronic renal insufficiency and type 1 diabetes mellitus post pancreas-alone transplantation 5 years prior to her initial visit consulted our service. Antepartum care with intensive monitoring of blood pressure, renal function, and tacrolimus serum concentration were given. Successful maternal and fetal outcomes are presented here. CONCLUSION: Child bearing in solid organ transplantation recipients has become more promising nowadays, even for a difficult case of pancreas-alone transplant recipient complicated with chronic renal insufficiency and superimposed pre-eclampsia. Thorough antepartum counseling and cautious monitoring of maternal, fetal and graft conditions by multidisciplinary specialties are key to favorable pregnancy outcomes. PMID- 29037564 TI - Prenatal diagnosis of low-level mosaicism for trisomy 21 with rare karyotype detected by noninvasive prenatal testing. PMID- 29037566 TI - Responses to the concern raised by Dr. Shigeki Matsubara. PMID- 29037565 TI - Serous carcinoma arising from adenomyosis. PMID- 29037567 TI - Perspective of Taiwan's experience in the management of meconium peritonitis. PMID- 29037568 TI - Granulosa cell tumor of ovary: Perspective of Taiwan. PMID- 29037569 TI - Poly(ADP-ribose) polymerase (PARP) inhibitors and ovarian cancer. PMID- 29037570 TI - Trace elements and arsenic speciation in tissues of tube dwelling polychaetes from hydrothermal vent ecosystems (East Pacific Rise): An ecological role as antipredatory strategy? AB - Hydrothermal vent systems are inhabited by dense benthic communities adapted to extreme conditions such as high temperature, hydrogen sulphide (H2S) and elevated fluxes of metals. In the present work, a wide range of trace elements (Ag, Al, As, Ba, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Sb, Se, V and Zn) were measured in tissues of three tube dwelling annelids, Alvinella pompejana, Alvinella caudata and Riftia pachyptila, which colonize distinct habitats of the East Pacific Rise (EPR) at 2500 m depth. Metals concentrations in alvinellids were often 2-4 orders of magnitude higher than those commonly found in marine organisms, while much lower values were observed in the vestimentiferan polychaete. Mobility of trace elements was further characterized in tissues of A. pompejana where metals appeared mostly in insoluble forms, i.e. associated with hydrated oxides and sulphides. Arsenic was mainly present in a weakly insoluble form and with concentrations in the branchial tentacles of alvinellids, approximately 5-15 fold higher than those measured in the thorax. Chemical speciation of this element in tissues of the three polychaete species revealed a major contribution of methylated arsenic compounds, like dimethylarsinate (DMA) and, to a lower extent, monomethylarsonate (MMA) and trimethylarsine oxide (TMAO). Although the biotransformation of inorganic arsenic might represent a detoxification mechanism in polychaetes from hydrothermal vents, the elevated levels of methylated forms of arsenic in branchial tissues also suggest an ecological role of this element as an antipredatory strategy for more vulnerable tissues toward generalist consumers. PMID- 29037571 TI - Effect of Ruta chalepensis on Zinc, Lipid Profile and Antioxidant Levels in the Blood and Tissue of Streptozotocin-Induced Diabetes in Rats Fed Zinc-Deficient Diets. AB - OBJECTIVES: In diabetes, oxidative stress and lipid abnormalities are common and pronounced and represent important factors that are involved in the development of complications of diabetes. Zinc deficiency generally induces oxidative stress, but it is well known that the antioxidant Ruta chalepensis has an effective modulator role in oxidative stress in metabolic diseases. The aim of this study was to investigate the effect of R. chalepensis extract on blood biochemical parameters, tissue zinc status and antioxidant systems in rats with diabetes that were fed zinc-deficient diets. METHODS: We divided 28 male albino Wistar rats into 4 groups: 2 groups (1 group with diabetes, 1 group without diabetes) were fed zinc-sufficient diets, while the other 2 groups of rats with diabetes were fed zinc-deficient diets. One group was not treated, and the other was treated with the extract of R. chalepensis. After 3 weeks of dietary manipulation, the fasting animals were killed. RESULTS: The body-weight gains of the zinc-deficient animals with diabetes were lower than those of the zinc-adequate animals with diabetes. It was noticed also that inadequate dietary zinc intake increased the glucose, cholesterol, triglyceride, urea, uric acid, creatinine and lipid peroxidation levels. In addition, the zinc-deficient diet led to a decrease in zinc tissues (femur, liver, kidney), glutathione concentration and both glutathione peroxidase and glutathione-S-transferase activities. However, R. chalepensis treatment ameliorated all the previous parameters approximately to their normal levels. CONCLUSIONS: It seems that R. chalepensis supplementation is a potent factor in reducing the oxidative severity of zinc deficiency in experimental diabetes through its hypoglycemic and antioxidant actions. PMID- 29037572 TI - Gender-Related Differences in the Control of Cardiovascular Risk Factors in Primary Care for Elderly Patients With Type 2 Diabetes: A Cohort Study. AB - OBJECTIVE: The aim of this study was to estimate the association between gender and control of diabetes and other cardiovascular risk factors in elderly patients with type 2 diabetes mellitus. METHODS: The sujets ages cohort is an observational study whose main objective was to describe the real-life management of elderly patients with type 2 diabetes mellitus in France. Nine hundred eighty three patients with diabetes (517 men and 466 women) were recruited by 213 general practitioners and were followed up prospectively every 6 months for 3 years. Diabetes, hypertension and dyslipidemia were considered controlled if the glycated hemoglobin (A1C) was <=7%, blood pressure was <140/90 mm Hg and low density lipoprotein (LDL) cholesterol was <=100 mg/dL. A1C levels and blood pressure measurements were recorded every 6 months for all patients. LDL cholesterol levels were optionally sampled every year. RESULTS: Women were older than men (77.3+/-5.72 vs. 76.1+/-6.01 years), more likely to be alone, less likely to be smokers/ex-smokers and less likely to have cardiovascular disease at baseline. Mean A1C levels of female patients (6.98%+/-1.03%) did not differ from those of male patients (6.91%+/-0.96%). Mean blood pressure measurements during follow up were not different between male and female patients. In contrast, female patients had significantly higher LDL cholesterol levels than male counterparts (105.2+/-32.6 vs. 94.9+/-29.1 mg/dL), regardless of statin therapy. CONCLUSION: Our results suggest no difference in the management of cardiovascular risk factors between elderly female patients with type 2 diabetes mellitus and their male counterparts, except for LDL cholesterol, which is significantly higher in women. PMID- 29037573 TI - Pharmacists' Scope of Practice: Supports for Canadians with Diabetes. AB - OBJECTIVES: The pharmacists' role in Canada has significantly advanced over the past decade, resulting in increasing access to primary care services. This study aimed to characterize pharmacists' expanded scope of practice as it relates to providing services to Canadians with diabetes. METHODS: This environmental scan characterized services that could be useful to Canadians with diabetes in each of the provinces (excluding the territories): immunizations, medication prescribing, ordering and interpreting laboratory tests, and medication reviews. Researchers also collected information on pharmacists' access to health information. Data were collected from regulatory authorities in each province, from pharmacy stakeholders and through a web search. RESULTS: Pharmacists' scope of practice varies widely across the Canadian provinces. Three provinces have medication review programs focused specifically on diabetes, and many people with diabetes can access publicly funded medication reviews. Other than in Quebec, pharmacists can provide influenza (publicly funded) and pneumococcal vaccinations (publicly funded in British Columbia, Alberta and Manitoba). All pharmacists in Canadian provinces can renew prescriptions to ensure continuity of therapy. Pharmacists have varying levels of other prescriptive authority. Pharmacists in all provinces (except Ontario) can access provincial prescription information; in 4 provinces, they can access laboratory results, and in 3 provinces, they can order and interpret laboratory results, such as glycated hemoglobin levels. CONCLUSIONS: Canadians with diabetes can expect to receive influenza vaccines and have medications renewed at their pharmacies. Many patients with diabetes qualify for a publicly funded medication review, and some provinces allow pharmacists to order and interpret laboratory results. This expanded scope provides greater opportunities for pharmacists to help support patients with diabetes in conjunction with other health-care team members. PMID- 29037574 TI - County-level assessment of United States kindergarten vaccination rates for measles mumps rubella (MMR) for the 2014-2015 school year. AB - United States kindergarten measles-mumps-rubella (MMR) vaccination rates are typically reported at the state level by the Centers for Disease Control and Prevention (CDC). The lack of local MMR data prevents identification of areas with low vaccination rates that would be vulnerable to the spread of disease. We collected county-level vaccination rates for the 2014-2015 school year with the objective of identifying these regions. We requested county-level kindergarten vaccination data from state health departments, and mapped these data to visualize geographic patterns in achievement of the 95% MMR vaccination target. We aggregated the county-level data to the state level for comparison against CDC state estimates. We also analyzed the relationship of MMR vaccination level with county-level and state-level poverty (using U.S. census data), using both a national mixed model with state as a random effect, and individual linear regression models by state. We received county vaccination data from 43 states. The median kindergarten MMR vaccination rate was 96.0% (IQR 89-98) across all counties, however, we estimated that 48.4% of the represented counties had vaccination rates below 95%. Our state estimates closely reflected CDC values. Nationally, every 10% increase in under-18 county poverty was associated with a 0.24% increase in MMR vaccination rates (95% CI: -0.07%; 0.54%), but the direction of this relationship varied by state. We found that county data can reveal vaccination trends that are unobservable from state-level data, but we also discovered that the current availability of county-level data is inadequate. Our findings can be used by state health departments to identify target areas for vaccination programs. PMID- 29037575 TI - Using best-worst scaling to rank factors affecting vaccination demand in northern Nigeria. AB - BACKGROUND: Understanding and ranking the reasons for low vaccination uptake among parents in northern Nigeria is critical to implement effective policies to save lives and prevent illnesses. This study applies best-worst scaling (BWS) to rank various factors affecting parents' demand for routine childhood immunization. METHODS: We conducted a household survey in Nahuche, Zamfara State in northern Nigeria. Nearly two hundred parents with children under age five were asked about their views on 16 factors using a BWS technique. These factors focused on known attributes that influence the demand for childhood immunization, which were identified from a literature review and reviewed by a local advisory board. The survey systematically presented parents with subsets of six factors and asked them to choose which they think are the most and least important in decisions to vaccinate children. We used a sequential best-worst analysis with conditional logistic regression to rank factors. RESULTS: The perception that vaccinating a child makes one a good parent was the most important motivation for parents in northern Nigeria to vaccinate children. Statements related to trust and social norms were ranked higher in importance compared to those that highlighted perceived benefits and risks, healthcare service, vaccine information, or opportunity costs. Fathers ranked trust in the media and views of their leaders to be of greatest importance, whereas mothers placed greater importance on social perceptions and norms. Parents of children without routine immunization ranked their trust in local leaders about vaccines higher in considerations, and the media's views lower, compared to parents with children who received routine immunization. CONCLUSIONS: Framing immunization messages in the context of good parenting and hearing these messages from trusted information sources may motivate parental uptake of childhood vaccines. These results are useful to policymakers to prioritize resources in order to increase awareness and demand for childhood immunization. PMID- 29037577 TI - Validation of administrative data to estimate vaccine impact: Audit of the Fiji hospital admissions electronic database, 2007-2011 & 2014-2015. AB - OBJECTIVES: Post-licensure studies to evaluate vaccine impact are an important component of introducing new vaccines. Such studies often rely on routinely collected data but the limitations to these data must be understood. To validate administrative data for use in 10-valent pneumococcal conjugate and rotavirus vaccine impact evaluations we have audited the two electronic database capturing hospital admissions in Fiji for completeness and consistency. METHODS: Hospital admission data for one week per year between 2007-2011 and 2014-2015 was collected from ward registers for selected hospitals. Ward registers were defined as the reference standard and compared to data captured in electronic databases. Data quality was assessed for completeness of admissions data (percentage of admissions in the electronic database, expressed as sensitivity), consistency of complete reporting (determined by identifying variables associated to complete reporting), and completeness of coding (percentage of admissions in the electronic database with an assigned ICD-10-AM code). RESULTS: Over all hospitals and years, the sensitivity for completeness of admission data was 83% (95% CI: 81.3, 84.6). Consistency of complete reporting varied and was highest at tertiary hospitals using the electronic database (sensitivity: 89.1%, 95% CI: 87.4, 90.7). The overall completeness of coding at tertiary hospitals was 90.8% (95% CI: 90.5, 91.1) with annual and hospital variation. CONCLUSION: The administrative data in the electronic databases in Fiji are of reasonable quality for the vaccine impact evaluation. This quantification of the missing data can be used to adjust the vaccine impact estimates. PMID- 29037576 TI - Pertussis seroepidemiology in women and their infants in Sarlahi District, Nepal. AB - BACKGROUND: Infants are at greatest risk for pertussis morbidity and mortality. Maternal vaccination during pregnancy has been shown to prevent pertussis in young infants in high- and middle-income countries. However, data on the levels of maternal pertussis antibodies and the efficiency of transplacental transfer in low-income South Asian settings are limited. OBJECTIVE: To estimate the prevalence of maternal pertussis antibodies and the efficiency of transplacental transfer in rural southern Nepal. DESIGN/METHODS: Paired maternal-infant blood samples were collected from a subsample of participants in a randomized, controlled trial of maternal influenza immunization (n=291 pairs). Sera were tested by enzyme-linked immunosorbent assays for pertussis toxin, filamentous hemagglutinin, pertactin, and fimbriae. Maternal and infant pertussis antibody levels and transplacental transfer efficiency were determined and potential factors associated with both were assessed. RESULTS: Elevated maternal antibodies to pertussis toxin, suggesting recent pertussis infection, were rarely detected (4%, tested n=305). However, paired maternal-cord sera were highly correlated across all antibodies; transplacental antibody transfer ratios for pertussis toxin were 1.14 (n=291, 95% CI 1.07-1.20); filamentous hemagglutinin 1.10 (n=120, 95% CI: 1.01-1.20); fimbriae 2/3 1.05 (n=120, 95% CI: 0.96-1.15) and pertactin 0.96 (n=289, 95% CI: 0.91-1.00). Older gestational age was associated with increased pertussis toxin and decreased fimbriae 2/3 antibody transport. CONCLUSIONS: A low prevalence of maternal antibody to all four pertussis antigens was noted in Nepal, but transplacental antibody transfer was efficient. No consistent demographic factors were associated with elevated maternal antibody levels or efficiency of transplacental transfer. If an increase in infant pertussis disease burden was detected in this population, maternal immunization could be an effective intervention to prevent disease in early infancy. PMID- 29037579 TI - Rotarix(r) and RotaTeq(r) administration to preterm infants in the neonatal intensive care unit: Review of available evidence. AB - Rotavirus (RV) is the leading cause of severe acute gastroenteritis (GE) in infants worldwide. Several vaccines against RV were developed to reduce disease burden, hospitalization rates and health utilization costs. RV GE is a serious disease in preterm (PT) infants, and the administration of RV vaccine to these at risk subjects at the proper time could have great clinical relevance. However, most data on the efficacy and safety of RV vaccinations were collected in healthy full-term infants, and few studies investigated PT infants. The lack of studies in PT infants may explain why neonatologists in several neonatal intensive care units (NICUs) do not follow the official recommendations, which indicate that RV vaccine may be administered in hospitals. Increasing neonatologists' knowledge on the efficacy and safety of RV vaccines and defining PT candidates for vaccination and the necessary precautions are extremely important to avoid potential vaccine virus transmission and improve RV vaccination coverage in PT infants. Further studies should analyse the impact of vaccination of PT infants of different gestational ages and various clinical histories in stable conditions in the NICU with a careful monitoring of adverse events to the vaccine and RV GE occurrence. Only data that confirm the efficacy and safety of RV vaccines in large numbers of PT infants with different characteristics will convince neonatologists to use RV vaccines in PT infants hospitalized in NICUs. PMID- 29037578 TI - A phase I safety and immunogenicity dose escalation trial of plague vaccine, Flagellin/F1/V, in healthy adult volunteers (DMID 08-0066). AB - INTRODUCTION: Intentional aerosolization of Yersinia pestis may result in pneumonic plague which is highly fatal if not treated early. METHODS: We conducted a phase 1 randomized, double blind (within each group), placebo controlled, dose escalation trial to evaluate a plague vaccine, Flagellin/F1/V, in healthy adults aged 8 through 45years. Vaccine was administered intramuscularly on Days 0 and 28 at a dose of 1, 3, 6 or 10mcg. Subjects were observed for 4h after vaccination for cytokine release syndrome. Reactogenicity and adverse events (AE) were collected for 14 and 28days, respectively, after each vaccination. Serious AE were collected for the entire study. ELISA antibody and cytokines were measured at multiple time points. Subject's participation lasted 13months. RESULTS: Sixty healthy subjects were enrolled; 52% males, 100% non-Hispanic, 91.7% white and mean age 30.8years. No severe reactogenicity events occurred; most AE were mild. No serious AE related to vaccine occurred. A dose response effect was observed to F1, V and flagellin. The peak ELISA IgG antibody titers (95% CI) after two 10mcg doses of vaccine were 260.0 (102.6-659.0) and 983.6 (317.3-3048.8), respectively, against F1 and V antigens. The 6mcg dose group provided similar titers. Titers were low for the placebo, 1mcg and 3mcg recipients. A positive antibody dose response was observed to F1, V and flagellin. Vaccine antigen specific serum IgE was not detected. There were no significant rises in serum or cellular cytokine responses and no significant IgG increase to flagellin after the second dose. CONCLUSION: The Flagellin/F1/V vaccine exhibited a dose dependent increase in immunogenicity and was well tolerated at all doses. Antibody specific responses to F1, V and flagellin increased as dose increased. Given the results from this trial, testing higher doses of the vaccine may be merited. PMID- 29037580 TI - A cross sectional survey to evaluate knowledge, attitudes and practices regarding seasonal influenza and influenza vaccination among diabetics in Pretoria, South Africa. AB - BACKGROUND: In South Africa, influenza vaccination is recommended to all diabetics. However, vaccination coverage among diabetics remains low. Therefore, this study aimed to explore the knowledge, attitudes, and practices among people with diabetes in Pretoria regarding seasonal influenza and influenza vaccination. METHOD: A cross-sectional survey was conducted among type 1 and 2 diabetes mellitus patients who attended diabetic clinics in two major tertiary hospitals in Pretoria, South Africa from October to December 2015. The pilot-tested questionnaire consists of 32 quantitative questions that covered seasonal influenza and influenza vaccination in terms of the patient's demographics, medical history and knowledge, attitudes and practices. RESULTS: A total of 292 completed questionnaires were received with a response rate of 70.0%. Of these, 162 participants (55.5%) believed that influenza is the same as common cold. While 96 (32.9%) participants were aware that they were at higher risk of complications of influenza, only 86 (29.5%) participants considered vaccination as an effective means in preventing serious influenza-related complication. Even though 167 (57.2%) participants had heard of the vaccine to prevent influenza, only 84 (28.8%) participants were previously vaccinated. Multivariate analysis shows that participants with good attitude score for influenza vaccination were 18.4 times more likely to be vaccinated compared with those with poor attitude score (OR =18.4, 95%CI. 5.28-64.10, p = .001). Among those previously vaccinated, advice from their doctors (82/84, 97.6%) was the main factor encouraging vaccination. Top reasons given by participants who had never been vaccinated before (208/292, 71.2%) include use of alternative protection (107/208, 51.4%) and that vaccination is not necessary because flu is just a minor illness (93/208, 44.7%). CONCLUSION: Uptake of seasonal vaccination among diabetics in Pretoria is low. Level of knowledge and perception are the main barriers to vaccination. Health care provider's advice may be an important key predictor of previous influenza vaccination and they should continue to educate and encourage all diabetics to get vaccinated for influenza at least once yearly. PMID- 29037581 TI - Pulmonary embolism due to exogenous estrogen intoxication. AB - OBJECTIVE: Pulmonary embolism is a relatively common clinical presentation of venous thromboembolism, which develops in relation to acute pulmonary arterial occlusion mostly caused by thrombi of the lower limbs. CASE REPORT: 29year old female admitted to emergency department with pulmonary thromboembolism due to an ingestion of 17 Diana 35 pills (2 mg cyproterone acetate and 0.035mg ethinyl estradiol) in a suicide attempt without any previously known predisposing factors. After thrombolytic therapy, the patient was discharged with oral warfarin treatment. DISCUSSION: We know that exogenous estrogen increase the risk of venous thromboembolism in therapeutic use. It should be kept in mind that even single ingestion of a single high-dose exogenous estrogen intake may induce pulmonary thromboembolism. PMID- 29037582 TI - Endoscopic versus microscopic approach in attic cholesteatoma surgery. AB - PURPOSE: Compare the outcomes of primary exclusive endoscopic ear surgery with those of the microscopic ear surgery in a group of patients affected by attic cholesteatoma. MATERIALS AND METHODS: Eighty patients suffered from attic cholesteatoma. Forty patients surgical treated with endoscopic ear surgery and forty patients surgical treated with microscopic ear surgery. RESULTS: No statistical differences were found in the parameters analysed (frequency of facial nerve dehiscence, age, disease duration, site of dehiscence) between the endoscopic and microscopic groups indicating a homogeneous selection thus providing a good comparison of the outcomes between the two groups. None of the patients in our survey developed postoperative iatrogenic facial palsy. Graft success rate was 100% in both groups. The overall operation time of endoscopic ear surgery presented a mean value of 87.8min, while in the group of patients treated via microscopic ear surgery a lower mean value of 69.9min was reported. The average healing time was 36.3days for the endoscopic subgroup and 47.8days for the microscopic subgroup. CONCLUSION: The surgical outcomes of endoscopic ear surgery are comparable to those of the conventional approach in terms postoperative air-conduction, graft success rate and taste sensation. The analysis of postoperative pain and healing times showed better results for EES. The mean operative times of endoscopic ear surgery gradually shortened as the surgeons gained expertise in performing one-hand surgery. PMID- 29037583 TI - Landmarks for the preservation of the middle temporal artery during mastoid surgery: Cadaveric dissection study. AB - IMPORTANCE: The middle temporal artery flap is a vascularized periosteal flap that is highly useful for otologic reconstruction including the middle cranial fossa, mastoidectomy defect, and external auditory canal. The course of the artery is close to the external auditory canal and is easily injured during preliminary exposure and elevation of flaps. OBJECTIVES: To describe the course of the middle temporal artery in relation to the external auditory canal and the superficial temporal artery in order to enhance preservation and use in otologic reconstruction. DESIGN: Dissection of preserved, injected cadaveric temporal bones. SETTING: Anatomical laboratory. PARTICIPANTS: Seven cadaveric temporal bones. INTERVENTION: Temporal bones were dissected in a planar manner to identify the middle temporal artery along the squamous temporal bone to its origin. The superior border of the external auditory canal was divided, horizontally, into thirds to create three measurement points. Distances between the middle temporal artery and the bony portion of the external auditory canal were then determined. MAIN OUTCOMES AND MEASURES: Horizontal diameter of the external auditory canal, distance from the superior-most border of the external auditory canal to the middle temporal artery, various patterns of the middle temporal artery. RESULTS: The middle temporal artery branched from the superficial temporal artery in all specimens. Mean horizontal diameter of the external auditory canal was 9.97mm. Mean distances between the bony portion of the external auditory canal and middle temporal artery for the first, second, and third points along the horizontal diameter of the external auditory canal were 1.57, 2.96, and 4.02mm, respectively. In at least one specimen, the artery dipped into the external auditory canal. CONCLUSIONS AND RELEVANCE: The middle temporal artery runs closest to the external auditory canal at the anterosuperior border. To preserve the middle temporal artery for use in reconstruction after otologic surgery, the surgeon should avoid dissection superior to the external auditory canal until the artery is positively identified. PMID- 29037584 TI - Fungal biotransformation of diuretic and antihypertensive drug spironolactone with Gibberella fujikuroi, Curvularia lunata, Fusarium lini, and Aspergillus alliaceus. AB - Derivatives of spironolactone (1), a diuretic and antihypertensive drug, were synthesized by using fungal cells for the first time. Ten different fungi were screened for their ability to biotransform 1, four of which were able to produce metabolites 2-8. Gibberella fujikuroi produced canrenone (2), 1-dehydrocanrenone (3), Curvularia lunuta provided compound 2, and 7alpha-thio-spironolactone (4), Fusarium lini yielded compounds 2, 3, 1beta-hydroxycanrenone (5), 1alpha hydroxycanrenone (6), 1-dehydro-15alpha-hydroxycanrenone (7), and 15alpha hydroxycanrenone (8), while Aspergillus alliaceus was able to produce all the seven metabolites. Metabolites 5, 6, and 7 were identified as new compounds. Their structures were elucidated by using different spectroscopic techniques. Substrate 1 and its metabolites 2, 3, and 5-8 were also evaluated for alpha glucosidase inhibitory activity in vitro. Substrate 1 was found to be strongly active with IC50 = 335 +/- 4.3 MUM as compared to the standard drug acarbose IC50 = 840 +/- 1.73 MUM, whereas all of resulting metabolites were found to be inactive. PMID- 29037585 TI - Iatrogenic mandibular fracture after open reduction and internal fixation in a patient with osteogenesis imperfecta. AB - To the best of our knowledge, this is the first report to discuss the possible mechanisms of an iatrogenic fracture during operation on an original mandibular fracture in a patient with osteogenesis imperfecta. PMID- 29037586 TI - Successive and discrete spaced conditioning in active avoidance learning in young and aged zebrafish. AB - We designed an automated device to study active avoidance learning abilities of zebrafish. Open source tools were used for the device control, statistical computing, and graphic outputs of data. Using the system, we developed active avoidance tests to examine the effects of trial spacing and aging on learning. Seven-month-old fish showed stronger avoidance behavior as measured by color preference index with discrete spaced training as compared to successive spaced training. Fifteen-month-old fish showed a similar trend, but with reduced cognitive abilities compared with 7-month-old fish. Further, in 7-month-old fish, an increase in learning ability during trials was observed with discrete, but not successive, spaced training. In contrast, 15-month-old fish did not show increase in learning ability during trials. Therefore, these data suggest that discrete spacing is more effective for learning than successive spacing, with the zebrafish active avoidance paradigm, and that the time course analysis of active avoidance using discrete spaced training is useful to detect age-related learning impairment. PMID- 29037587 TI - Lipidomic analysis of biological samples: Comparison of liquid chromatography, supercritical fluid chromatography and direct infusion mass spectrometry methods. AB - Lipidomic analysis of biological samples in a clinical research represents challenging task for analytical methods given by the large number of samples and their extreme complexity. In this work, we compare direct infusion (DI) and chromatography - mass spectrometry (MS) lipidomic approaches represented by three analytical methods in terms of comprehensiveness, sample throughput, and validation results for the lipidomic analysis of biological samples represented by tumor tissue, surrounding normal tissue, plasma, and erythrocytes of kidney cancer patients. Methods are compared in one laboratory using the identical analytical protocol to ensure comparable conditions. Ultrahigh-performance liquid chromatography/MS (UHPLC/MS) method in hydrophilic interaction liquid chromatography mode and DI-MS method are used for this comparison as the most widely used methods for the lipidomic analysis together with ultrahigh performance supercritical fluid chromatography/MS (UHPSFC/MS) method showing promising results in metabolomics analyses. The nontargeted analysis of pooled samples is performed using all tested methods and 610 lipid species within 23 lipid classes are identified. DI method provides the most comprehensive results due to identification of some polar lipid classes, which are not identified by UHPLC and UHPSFC methods. On the other hand, UHPSFC method provides an excellent sensitivity for less polar lipid classes and the highest sample throughput within 10min method time. The sample consumption of DI method is 125 times higher than for other methods, while only 40MUL of organic solvent is used for one sample analysis compared to 3.5mL and 4.9mL in case of UHPLC and UHPSFC methods, respectively. Methods are validated for the quantitative lipidomic analysis of plasma samples with one internal standard for each lipid class. Results show applicability of all tested methods for the lipidomic analysis of biological samples depending on the analysis requirements. PMID- 29037588 TI - Magnetic covalent triazine framework for rapid extraction of phthalate esters in plastic packaging materials followed by gas chromatography-flame ionization detection. AB - Covalent triazine frameworks (CTFs), featuring with high surface area, good thermal, chemical and mechanical stability, are good adsorbents in sample pretreatment. Herein, magnetic CTFs/Ni composite was prepared by in situ reduction of nickel ions on CTFs matrix with a solvothermal method. The prepared CTFs/Ni composite exhibited good preparation reproducibility, high chemical stability, and high extraction efficiency for targeted phthalate esters (PAEs) due to pi-pi interaction and hydrophobic effect. The porous structure of CTFs/Ni composite benefited the fast transfer of target PAEs from aqueous solution to the adsorbents, and the integrated magnetism contributed to the rapid separation of adsorbents from sample and elution solution. Based on it, a novel method of magnetic solid phase extraction (MSPE) combined with gas chromatography-flame ionization detector (GC-FID) was developed for the analysis of PAEs including dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), benzyl butyl phthalate (BBP), di-2-ethylhexl phthalate (DEHP), and di-n-octyl phthalate (DNOP) in plastic packaging materials. Under the optimal experimental conditions, the limits of detection (LODs, S/N=3) for six PAEs were found to be in the range of 0.024-0.085mg/kg. The linear range was 0.32-16mg/kg for DMP, DEP, 0.08-80mg/kg for DBP, 0.16-32mg/kg for BBP, DEHP, and 0.32-32mg/kg for DNOP, respectively. The enrichment factors ranged from 59 to 88-fold (theoretical enrichment factor was 133-fold). The proposed method was successfully applied to the analysis of PAEs in various plastic packaging materials with recoveries in the range of 70.6-119% for the spiked samples. This method is characterized with short operation time, high sensitivity, low consumption of harmful organic solvents and can be extended to the analysis of other trace aromatic compounds. PMID- 29037589 TI - A twin purification/enrichment procedure based on two versatile solid/liquid extracting agents for efficient uptake of ultra-trace levels of lorazepam and clonazepam from complex bio-matrices. AB - In this research work, two consecutive dispersive solid/liquid phase microextractions based on efficient extraction media were developed for the influential and clean pre-concentration of clonazepam and lorazepam from complicated bio-samples. The magnetism nature of the proposed nanoadsorbent proceeded the clean-up step conveniently and swiftly (~5min), pursued by a further enrichment via a highly effective and rapid emulsification microextraction process (~4min) based on a deep eutectic solvent (DES). Finally, the instrumental analysis step was practicable via high performance liquid chromatography-ultraviolet detection. The solid phase used was an adequate magnetic nanocomposite termed as polythiophene-sodium dodecyl benzene sulfonate/iron oxide (PTh-DBSNa/Fe3O4), easily and cost-effectively prepared by the impressive co-precipitation method followed by the efficient in situ sonochemical oxidative polymerization approach. The identification techniques viz. FESEM, XRD, and EDX certified the supreme physico-chemical properties of this effective nanosorbent. Also the powerful liquid extraction agent, DES, based on bio-degradable choline chloride, possessed a high efficiency, tolerable safety, low cost, and facile and mild synthesis route. The parameters involved in this versatile hyphenated procedure, efficiently evaluated via the central composite design (CCD), showed that the best extraction conditions consisted of an initial pH value of 7.2, 17mg of the PTh-DBSNa/Fe3O4 nanocomposite, 20 air agitation cycles (first step), 245MUL of methanol, 250MUL of DES, 440MUL of THF, and 8 air-agitation cycles (second step). Under the optimal conditions, the understudied drugs could be accurately determined in the wide linear dynamic ranges (LDRs) of 4.0-3000ngmL-1 and 2.0-2000ngmL-1 for clonazepam and lorazepam, respectively, with low limits of detection (LODs) ranged from 0.7 to 1.0ngmL-1. The enrichment factor (EF) and percentage extraction recovery (%ER) values were found to be 75 and 57% for clonazepam and 56 and 42% for lorazepam at the spiked level of 75.0ngmL-1, possessing proper repeatabilities (relative standard deviation values (RSDs) below 5.9%, n=3). These valid analytical features provided quite accurate drug analyses at therapeutically low spans and levels below potentially toxic domains, implying a proper purification/enrichment of the proposed microextraction procedure. PMID- 29037590 TI - Error measures in quantitative structure-retention relationships studies. AB - An analysis and comparison of the use of four commonly used error measures (mean absolute error, percentage mean absolute error, root mean square error, and percentage root mean square error) for evaluating the predictive ability of quantitative structure-retention relationships (QSRR) models is reported. These error measures are used for reporting errors in the prediction of retention time of external test analytes, that is, analytes not employed during model development. The error-based validation metrics were compared using a simple descriptive statistic, the sum of squared residuals (SSR) of outliers to the edge of an error window. The comparisons demonstrate that Percentage Root Mean Squared Error of Prediction (RMSEP) provides the best estimate of the predictive ability of a QSRR model, having the lowest SSR value of 20.43. PMID- 29037591 TI - Compensation of matrix effects in gas chromatography-mass spectrometry analysis of pesticides using a combination of matrix matching and multiple isotopically labeled internal standards. AB - In the multi-residue analysis of pesticides using GC-MS, the quantitative results are adversely affected by a phenomenon known as the matrix effect. Although the use of matrix-matched standards is considered to be one of the most practical solutions to this problem, complete removal of the matrix effect is difficult in complex food matrices owing to their inconsistency. As a result, residual matrix effects can introduce analytical errors. To compensate for residual matrix effects, we have developed a novel method that employs multiple isotopically labeled internal standards (ILIS). The matrix effects of ILIS and pesticides were evaluated in spiked matrix extracts of various agricultural commodities, and the obtained data were subjected to simple statistical analysis. Based on the similarities between the patterns of variation in the analytical response, a total of 32 isotopically labeled compounds were assigned to 338 pesticides as internal standards. It was found that by utilizing multiple ILIS, residual matrix effects could be effectively compensated. The developed method exhibited superior quantitative performance compared with the common single-internal-standard method. The proposed method is more feasible for regulatory purposes than that using only predetermined correction factors and is considered to be promising for practical applications. PMID- 29037592 TI - Adsorption of marine phycotoxin okadaic acid on a covalent organic framework. AB - Phycotoxins, compounds produced by some marine microalgal species, can reach high concentrations in the sea when a massive proliferation occurs, the so-called harmful algal bloom. These compounds are especially dangerous to human health when concentrated in the digestive glands of seafood. In order to generate an early warning system to alert for approaching toxic outbreaks, it is very important to improve monitoring methods of phycotoxins in aquatic ecosystems. Solid-phase adsorption toxin tracking devices reported thus far based on polymeric resins have not been able to provide an efficient harmful algal bloom prediction system due to their low adsorption capabilities. In this work, a water stable covalent organic framework (COF) was evaluated as adsorbent for the hydrophobic toxin okadaic acid, one of the most relevant marine toxins and the parental compound of the most common group of toxins responsible for the diarrhetic shellfish poisoning. Adsorption kinetics of okadaic acid onto the COF in seawater showed that equilibrium concentration was reached in only 60min, with a maximum experimental adsorption of 61mgg-1. Desorption of okadaic acid from the COF was successful with both 70% ethanol and acetonitrile as solvent, and the COF material could be reused with minor losses in adsorption capacity for three cycles. The results demonstrate that COF materials are promising candidates for solid-phase adsorption in water monitoring devices. PMID- 29037593 TI - Untargeted analysis of chromatographic data for green and fermented rooibos: Problem with size effect removal. AB - While analyzing chromatographic data, it is necessary to preprocess it properly before exploration and/or supervised modeling. To make chromatographic signals comparable, it is crucial to remove the scaling effect, caused by differences in overall sample concentrations. One of the efficient methods of signal scaling is Probabilistic Quotient Normalization (PQN) [1]. However, it can be applied only to data for which the majority of features do not vary systematically among the studied classes of signals. When studying the influence of the traditional "fermentation" (oxidation) process on the concentration of 56 individual peaks detected in rooibos plant material, this assumption is not fulfilled. In this case, the only possible solution is the analysis of pairwise log-ratios, which are not influenced by the scaling constant. To estimate significant features, i.e., peaks differentiating the studied classes of samples (green and fermented rooibos plant material), we propose the application of rPLR (robust pair-wise log ratios) as proposed by Walach et al. [2]. It allows for fast computation and identification of the significant features in terms of original variables (peaks) which is problematic, while working with the unfolded pair-wise log ratios. As demonstrated, it can be applied to designed data sets and in the case of contaminated data, it allows proper conclusions. PMID- 29037595 TI - Cellular Characterization of OCT and Outer Retinal Bands Using Specific Immunohistochemistry Markers and Clinical Implications. AB - PURPOSE: OCT has been a technological breakthrough in the diagnosis, treatment, and follow-up of many ocular diseases, especially retinal and neuro ophthalmologic pathologic conditions. Until now, several controversies have arisen over the specific cell types that the bands observed in the OCT represent, especially over the 4 outer retinal bands. DESIGN: To correlate the 4 outer hyperreflective bands observed in the OCT with the histologic structures using human retinal sections and immunocytochemistry at the fovea level. PARTICIPANTS: Eyes from human donors. METHODS: Vertical cryosections of human retinas were immunostained with antibodies specific for cones photoreceptors, bipolar cells, mitochondria, Muller cells, and retinal pigment epithelium (RPE) cells and were visualized using confocal microscopy. MAIN OUTCOME MEASURES: Morphological correlation between histology and OCT at the fovea level. RESULTS: Triple immunolabeling allowed distinguishing between cells types and different cell compartments. Immunostaining with guanine nucleotide-binding protein beta 3 (GNB3) and cellular retinaldehyde-binding protein (CRALBP) antibodies showed all retinal layers at the foveola, especially the separation between the outer nuclear layer and the Henle fiber layer. CRALBP and cytochrome C (Cyt C) immunolabeling revealed that hyperreflective bands 1 and 2, observed in the OCT, correspond to the outer limiting membrane and the cone ellipsoids, respectively, separated by the cone myoids. CRALBP, cytochrome C, and GNB3 showed that the RPE interdigitations extend along the entire external segment of the cones, we do not believe them to be the structure responsible for forming the third band. However, the identification of small fragments of cone outer segments within the RPE led us to characterize the third band as the cone phagosomes located in the top of the RPE. Finally, we propose that the fourth band corresponds to the accumulation of mitochondria at the basal portion of the RPE, as identified by cytochrome C immunoreactivity, and that the hyporeflective band between bands 3 and 4 corresponds to the RPE nuclei and melanosomes zone. CONCLUSIONS: This study proposes a new interpretation of the outer retinal bands that leads to a more accurate interpretation of OCT images, providing information about the health of cones and their relationship with the RPE, and could help to form a better understanding of retinal disease diagnosis and prognosis. PMID- 29037596 TI - Attenuated Chemosensory Responsiveness of the Grueneberg Ganglion in Mouse Pups at Warm Temperatures. AB - Neurons of the Grueneberg ganglion (GG) in the anterior nasal region of mice respond to a small set of odorous compounds, including given dimethylpyrazines present in mouse urine. Consequently, mouse pups living in murine colonies are presumably commonly exposed to such GG-activating substances. Since stimulation of the GG elicits alarm and stress reactions in mice, the question arises whether such a GG activation potentially inducing stress could be reduced when pups might rather feel secure in the presence of their mother. Being together with their warmth-giving dam, mouse pups experience a nest temperature of ~35 degrees C. Therefore, we hypothesized that such a warm temperature may attenuate the responses of GG neurons to dimethylpyrazines. Monitoring the expression of the activity marker c-Fos, GG responses to dimethylpyrazines were significantly lower in pups exposed to these substances at 35 degrees C compared to exposure at 30 degrees C. By contrast, dimethylpyrazine-induced responses of neurons in the main olfactory epithelium were not diminished at 35 degrees C in comparison to 30 degrees C. The attenuated chemosensory responses of GG neurons at 35 degrees C coincided with a reduced dimethylpyrazine-evoked activation of the glomeruli in the olfactory bulb innervated by GG neurons. The reduction in dimethylpyrazine evoked GG responses by warm temperatures was positively correlated with exposure time, suggesting that warm temperatures might enhance desensitization processes in GG neurons. In summary, the findings indicate that warm temperatures similar to those in mouse nests in the presence of the dam attenuate GG activation by colony-derived odorants. PMID- 29037594 TI - Epigenetic Modification of MicroRNA-200b Contributes to Diabetic Vasculopathy. AB - Hyperglycemia (HG) induces genome-wide cytosine demethylation. Our previous work recognized miR-200b as a critical angiomiR, which must be transiently downregulated to initiate wound angiogenesis. Under HG, miR-200b downregulation is not responsive to injury. Here, we demonstrate that HG may drive vasculopathy by epigenetic modification of a miR promoter. In human microvascular endothelial cells (HMECs), HG also lowered DNA methyltransferases (DNMT-1 and DNMT-3A) and compromised endothelial function as manifested by diminished endothelial nitric oxide (eNOS), lowered LDL uptake, impaired Matrigel tube formation, lower NO production, and compromised VE-cadherin expression. Bisulfite-sequencing documented HG-induced miR-200b promoter hypomethylation in HMECs and diabetic wound-site endothelial cells. In HMECs, HG compromised endothelial function. Methyl donor S-adenosyl-L-methionine (SAM) corrected miR-200b promoter hypomethylaton and rescued endothelial function. In vivo, wound-site administration of SAM to diabetic mice improved wound perfusion by limiting the pathogenic rise of miR-200b. Quantitative stable isotope labeling by amino acids in cell culture (SILAC) proteomics and ingenuity pathway analysis identified HG induced proteins and principal clusters in HMECs sensitive to the genetic inhibition of miR-200b. This work presents the first evidence of the miR-200b promoter methylation as a critical determinant of diabetic wound angiogenesis. PMID- 29037597 TI - Tuning of Neuronal Interactions in the Lateral Ventral Tegmental Area by Dopamine Sensitivity. AB - The Ventral Tegmental Area (VTA) contains a considerable population of rhythmically firing dopaminergic neurons, which are influenced by auto-inhibition due to extra-synaptic dopamine release resulting in volume transmission. Using a Multi-Electrode-Array we simultaneously recorded in vitro from multiple VTA dopamine neurons in the rat and studied their mutual interactions. We observed that the dopamine sensitivity (EC50) of the neurons (i.e. the relation between dopamine concentration and firing rate) was quite variable within the recorded population. The interactions between pairs of neurons were quantified using the Granger causality. We found that the dopamine sensitivity determined the role of a neuron in the local VTA population. Highly sensitive neurons became followers (of the population rhythm), whereas less sensitive dopamine neurons played a more leading role. This was confirmed by the application of sulpiride which reduces the dopamine sensitivity of all neurons through competition and abolishes the structure in the interactions. These findings imply that therapeutics, which have an easy to understand effect on firing rate, could have a more complicated effect on the functional organization of the local VTA population, through volume transmission principles. PMID- 29037598 TI - Hierarchical Subcortical Sub-Regional Shape Network Analysis in Alzheimer's Disease. AB - In this paper, by utilizing surface diffeomorphic deformations, we constructed and analyzed subcortical shape morphometric networks in 210 healthy control (HC) subjects and 175 subjects with Alzheimer's disease (AD), aiming to identify AD induced abnormalities in the subcortical shape network. We quantitatively analyzed pertinent network attributes of the entire network and each node. Further to this, hierarchical analyses were performed; group comparisons were conducted at the structure level first and then the sub-region level. The bilateral amygdalae, hippocampi, as well as the thalamus were all divided into multiple functionally distinct sub-regions. From the structure level analysis, we found significant HC-vs-AD group differences in the average local efficiency and average global efficiency. In addition, the local nodal efficiencies between the right thalamus and all three of the right hippocampus, right amygdala, and left thalamus, as well as that between the left amygdala and left hippocampus, decreased significantly in AD. According to the sub-regional network analyses, we observed significant AD-induced local efficiency decreases between different sub regions within the right hippocampus itself and between the subiculum of the right hippocampus and the sub-region of the right thalamus connecting to the temporal lobe, indicating a degradation of circuit between the hippocampus, thalamus, and temporal lobe. Statistical comparisons were performed using 40,000 non-parametric permutation tests, with false discovery rate correction employed for multiple comparison correction. PMID- 29037599 TI - Neural Basis of Ventromedial Hypothalamic Oxytocin-Driven Decrease in Appetite. AB - OBJECTIVES: Oxytocin (OT) administration in the ventromedial hypothalamic nucleus (VMH) reduces chow intake. The nature of VMH OT's anorexigenic action remains unclear. Here we provide insight into neural mechanisms underlying VMH OT-driven anorexia by (a) identifying feeding-related brain sites activated by VMH OT injection; (b) measuring VMH OT receptor (OTr) mRNA changes in response to hunger and palatability; and (c) examining how VMH OT affects episodic sweet solution intake in sated and hungry rats. METHOD: We established effective doses of VMH OT in deprivation-induced and scheduled feeding and determined whether an OT antagonist blocks the effect. Then, OT (or antagonist) was injected in the VMH of sated rats given episodically sucrose and saccharin solutions. OT was also injected in hungry animals offered simultaneously chow and sugar water. Brain activation after VMH OT was determined by Fos immunoreactivity (IR). OTr expression was established with rtPCR after chow deprivation or saccharin exposure. RESULTS: VMH OT decreased intake of chow and the effect was reversed by the antagonist, though the antagonist alone was not orexigenic. OT did not affect intakes of energy-dilute saccharin and sucrose solutions in sated or hungry rats. Fos IR was elevated in the VMH and energy balance-related paraventricular and arcuate nuclei, but not reward areas. VMH OTr expression was higher in hungry rats than in sated controls; saccharin intake had no effect. CONCLUSION: OT acting in the VMH decreases intake driven by energy not by palatability, and it stimulates activity of hypothalamic sites controlling energy balance. PMID- 29037600 TI - Asymmetric Phosphatidylethanolamine Distribution Controls Fusion Pore Lifetime and Probability. AB - Little attention has been given to how the asymmetric lipid distribution of the plasma membrane might facilitate fusion pore formation during exocytosis. Phosphatidylethanolamine (PE), a cone-shaped phospholipid, is predominantly located in the inner leaflet of the plasma membrane and has been proposed to promote membrane deformation and stabilize fusion pores during exocytotic events. To explore this possibility, we modeled exocytosis using plasma membrane SNARE containing planar-supported bilayers and purified neuroendocrine dense core vesicles (DCVs) as fusion partners, and we examined how different PE distributions between the two leaflets of the supported bilayers affected SNARE mediated fusion. Using total internal reflection fluorescence microscopy, the fusion of single DCVs with the planar-supported bilayer was monitored by observing DCV-associated neuropeptide Y tagged with a fluorescent protein. The time-dependent line shape of the fluorescent signal enables detection of DCV docking, fusion-pore opening, and vesicle collapse into the planar membrane. Four different distributions of PE in the planar bilayer mimicking the plasma membrane were examined: exclusively in the leaflet facing the DCVs; exclusively in the opposite leaflet; equally distributed in both leaflets; and absent from both leaflets. With PE in the leaflet facing the DCVs, overall fusion was most efficient and the extended fusion pore lifetime (0.7 s) enabled notable detection of content release preceding vesicle collapse. All other PE distributions decreased fusion efficiency, altered pore lifetime, and reduced content release. With PE exclusively in the opposite leaflet, resolution of pore opening and content release was lost. PMID- 29037601 TI - Implant-oriented navigation in orbital reconstruction. Part 1: technique and accuracy study. AB - Intraoperative navigation is frequently used to assess the position of the implant in orbital reconstruction. Interpretation of the feedback from the navigation system to a three-dimensional position of the implant needs to be done by the surgeon, and feedback is only gathered after the implant has been positioned. An implant-oriented navigation approach is proposed, with real-time intuitive feedback during insertion. A technical framework was set up for implant oriented navigation, with requirements for planning, implant tracking, and feedback. A dedicated navigation instrument was designed and a software tool was developed in order to meet the technical requirements. An accuracy study was performed to investigate the accuracy of the method in comparison to the regular navigation pointer. A proof of concept was provided. The results showed a translation error of 1.12-1.15mm for implant-oriented navigation with regular registration (pointer 0.71-0.98mm) and 0.81mm with accurate registration (pointer 0.54mm). Rotational error was found to be small (<3 degrees ). Quantitative and intuitive qualitative feedback could be provided to the surgeon in real-time during insertion of an orbital implant. Following this proof of concept and accuracy study, the implications for the clinical workflow should be evaluated. An implant-oriented approach may form the foundation for augmented reality or robotic-aided implant insertion. PMID- 29037602 TI - HIV/STI Prevention Among Heterosexually Active Black Adolescents With Mental Illnesses: Focus Group Findings for Intervention Development. AB - Heterosexually active Black adolescents with mental illnesses are at increased risk for sexually transmitted infections (STIs), including HIV. However, few HIV/STI prevention interventions exist for this demographic. We held seven focus groups (N = 33) to elucidate social, cultural, and psychological factors that influence HIV/STI risk-related sexual behaviors in this understudied population. Seven themes emerged: (a) Blackness and media portrayals, (b) Blackness as a source of cultural resilience and pride, (c) psychosocial determinants of condom use, (d) consequences of engaging in sexual activity, (e) attitudes and beliefs toward sexual behaviors, (f) benefits of sexual activity, and (g) coping mechanisms. Participants also supported the feasibility of and interest in HIV/STI prevention programs integrated with mental health treatment. Transportation, potential breaches of confidentiality, and time were noted barriers to participation. Psychoeducational, skills-based programs are needed to address the sequelae of mental illnesses as they relate to the sexual decision making process in adolescents. PMID- 29037603 TI - MRI and CT lung biomarkers: Towards an in vivo understanding of lung biomechanics. AB - BACKGROUND: The biomechanical properties of the lung are necessarily dependent on its structure and function, both of which are complex and change over time and space. This makes in vivo evaluation of lung biomechanics and a deep understanding of lung biomarkers, very challenging. In patients and animal models of lung disease, in vivo evaluations of lung structure and function are typically made at the mouth and include spirometry, multiple-breath gas washout tests and the forced oscillation technique. These techniques, and the biomarkers they provide, incorporate the properties of the whole organ system including the parenchyma, large and small airways, mouth, diaphragm and intercostal muscles. Unfortunately, these well-established measurements mask regional differences, limiting their ability to probe the lung's gross and micro-biomechanical properties which vary widely throughout the organ and its subcompartments. Pulmonary imaging has the advantage in providing regional, non-invasive measurements of healthy and diseased lung, in vivo. Here we summarize well established and emerging lung imaging tools and biomarkers and how they may be used to generate lung biomechanical measurements. METHODS: We review well established and emerging lung anatomical, microstructural and functional imaging biomarkers generated using synchrotron x-ray tomographic-microscopy (SRXTM), micro-x-ray computed-tomography (micro-CT), clinical CT as well as magnetic resonance imaging (MRI). FINDINGS: Pulmonary imaging provides measurements of lung structure, function and biomechanics with high spatial and temporal resolution. Imaging biomarkers that reflect the biomechanical properties of the lung are now being validated to provide a deeper understanding of the lung that cannot be achieved using measurements made at the mouth. PMID- 29037605 TI - Response Expectancy and the Response to Antidepressant Medication. PMID- 29037604 TI - MET Activation and Physical Dynamics of the Metastatic Process: The Paradigm of Cancers of Unknown Primary Origin. AB - The molecular and cellular mechanisms which drive metastatic spread are the topic of constant debate and scientific research due to the potential implications for cancer patients' prognosis. In addition to genetics and environmental factors, mechanics of single cells and physical interaction with the surrounding environment play relevant role in defining invasive phenotype. Reconstructing the physical properties of metastatic clones may help to clarify still open issues in disease progression as well as to lead to new diagnostic and therapeutic approaches. In this perspective cancer of unknown primary origin (CUP) identify the ideal model to study physical interactions and forces involved in the metastatic process. We have previously demonstrated that MET oncogene is mutated with unexpected high frequency in CUPs. We here analyze and discuss how the MET activation by somatic mutation may affect physical properties in giving rise to such a highly malignant syndrome, as that defined by CUP. PMID- 29037606 TI - Plasma HSP90alpha and liver cancer: a potential biomarker? PMID- 29037608 TI - Chemokine CCL8 and its receptor CCR5 in the spinal cord are involved in visceral pain induced by experimental colitis in mice. AB - Visceral hypersensitivity induced by inflammatory bowel disease (IBD) is a clinical challenge since the underlying mechanisms remain elusive. Chemokines and their receptors have been suggested to modulate inflammatory pain and neuropathic pain. However, the exact chemokines involved in visceral pain remain to be determined. Here, we investigated the effects of spinal chemokine CCL8 and its major receptor CCR5 on the development of visceral hyperalgesia. We showed that intracolonic injection of 2,4,6-trinitrobenzene sulfonic acid (TNBS) in mice produced significant colonic inflammation and visceral hypersensitivity to colorectal distension. Moreover, the mRNA and protein expression of CCL8 and CCR5 in the lumbosacral spinal cord were significantly upregulated. Both of CCL8 and CCR5 were expressed in spinal neurons. Furthermore, TNBS induced the activation of extracellular signal-regulated kinase (ERK) in the spinal cord. The induction of visceral pain by TNBS was attenuated by injection of ERK upstream kinase (MEK) inhibitor PD98059. Finally, intrathecal CCL8 neutralizing antibody or CCR5 antagonist DAPTA dose-dependently suppressed TNBS-evoked visceral hyperalgesia and spinal ERK activation. Taken together, these data demonstrated that CCL8 and CCR5, expressed and upregulated in spinal neurons after colonic inflammation, are involved in the maintenance of visceral hyperalgesia via the activation of spinal ERK. Targeting CCL8/CCR5/ERK pathway in the spinal cord might provide a novel treatment for the relief of visceral pain. PMID- 29037607 TI - Dynamic Organization of lncRNA and Circular RNA Regulators Collectively Controlled Cardiac Differentiation in Humans. AB - Advances in developmental cardiology have increased our understanding of the early aspects of heart differentiation. However, understanding noncoding RNA (ncRNA) transcription and regulation during this process remains elusive. Here, we constructed transcriptomes for both long noncoding RNAs (lncRNAs) and circular RNAs (circRNAs) in four important developmental stages ranging from early embryonic to cardiomyocyte based on high-throughput sequencing datasets, which indicate the high stage-specific expression patterns of two ncRNA types. Additionally, higher similarities of samples within each stage were found, highlighting the divergence of samples collected from distinct cardiac developmental stages. Next, we developed a method to identify numerous lncRNA and circRNA regulators whose expression was significantly stage-specific and shifted gradually and continuously during heart differentiation. We inferred that these ncRNAs are important for the stages of cardiac differentiation. Moreover, transcriptional regulation analysis revealed that the expression of stage specific lncRNAs is controlled by known key stage-specific transcription factors (TFs). In addition, circRNAs exhibited dynamic expression patterns independent from their host genes. Functional enrichment analysis revealed that lncRNAs and circRNAs play critical roles in pathways that are activated specifically during heart differentiation. We further identified candidate TF-ncRNA-gene network modules for each differentiation stage, suggesting the dynamic organization of lncRNAs and circRNAs collectively controlled cardiac differentiation, which may cause heart-related diseases when defective. Our study provides a foundation for understanding the dynamic regulation of ncRNA transcriptomes during heart differentiation and identifies the dynamic organization of novel key lncRNAs and circRNAs to collectively control cardiac differentiation. PMID- 29037609 TI - SCAT3 changes from baseline and associations with X2 Patch measured head acceleration in amateur Australian football players. AB - OBJECTIVES: To investigate changes from baseline on SCAT3 as a result of football game exposure, and association with X2 Patch measured head acceleration events in amateur Australian footballers. DESIGN: Prospective cohort. METHODS: Peak linear acceleration (PLA) of the head (>10 g) was measured by wearable head acceleration sensor X2 Biosystems X-Patch in male (n=34) and female (n=19) Australian footballers. SCAT3 was administered at baseline (B) and post-game (PG). RESULTS: 1394 head acceleration events (HEA) >10 g were measured. Mean and median HEA PLA were recorded as 15.2 g (SD=9.2, range=10.0-115.8) and 12.4 g (IQR=11.0-15.6) respectively. No significant difference in median HEA PLA (g) was detected across gender (p=0.55), however, more HEAs were recorded in males (p=0.03). A greater number (p=0.004) and severity (p<0.001) of symptoms were reported PG than at B. No significant association between number of HEA or median PLA, and SCAT3 change scores (p>0.05 for all), was identified for either gender. CONCLUSIONS: Increase in symptom severity post game was not associated with X2 measured HEA. Males sustained more HEA, however HEA PLA magnitude did not differ across gender. Further work on the validation of head acceleration sensors is required and their role in sports concussion research and medical management. PMID- 29037610 TI - Coronary Intramural Hematoma Visualized on Multislice CT Angiography. PMID- 29037611 TI - Improvement in the Management of Dyslipidemia in a Clinical Practice Population at Very High Cardiovascular Risk. The COLIPAR Project. PMID- 29037612 TI - Lung Ultrasound for Cardiogenic Shock in VA-ECMO. PMID- 29037613 TI - Acute Myocardial Infarction, Stroke and Bilateral Carotid Vasospasm: A Rare Association. PMID- 29037614 TI - Intra-atrial Right Coronary Artery: An Unknown Disorder. PMID- 29037615 TI - Six weeks of Mat Pilates training are enough to improve functional capacity in elderly women. AB - The aim of the study was to evaluate the effect of Mat Pilates on the functional capacity (FC) of elderly women before and after six weeks of intervention. Eighteen women aged 62.28 (+/-2.34) participated in the study. Timed Up and Go test, Timed Up Stairs, Timed Down Stairs, 30-s Chair Stand, Chair Sit-and-Reach and Back Scratch tests were assessed. The results showed significant improvements in all FC tests after six weeks of the Mat Pilates intervention. Summarizing, only six weeks of Mat Pilates training of 60 min per session, three times a week, three series beginning with six repetitions and eight repetitions at the last two weeks of intervention, were enough to improve FC in elderly women. Furthermore, the exercises difficulty increased from beginners to intermediate. PMID- 29037616 TI - The effect of motor control training on kinetics variables of patients with non specific low back pain and movement control impairment: Prospective observational study. AB - INTRODUCTION: The purpose of this study was to determine the effects of motor control training on pain, disability and motor control indices in patients with nonspecific low back pain (NSLBP) and movement control impairment (MCI) and also to evaluate the correlation between the changes in disability and the motor control indices. METHODS: Thirty people with NSLBP and MCI based on a clinical examination were following either motor control training or normal activity over 8 weeks. RESULT: Significant differences between pre and post training in the experimental group were found in pain, disability and motor control indices. There were significant correlations between disability index with vertical ground reaction force (r = 0.43) and center of pressure (anterior-posterior) (r = 0.44) values. CONCLUSION: The results of this study showed that motor control indices are responsive measures to capture change during motor control training directed at retraining neuromuscular control, reducing pain and disability. PMID- 29037617 TI - The effects of preventive rubber band training on shoulder joint imbalance and throwing performance in handball players: A randomized and prospective study. AB - OBJECTIVES: To investigate the effects of a strength training program (STP) using rubber band exercises. METHODS: Twenty-five athletes were divided into two groups: muscular imbalance in the dominant (D) and in the non-dominant (ND) upper limbs. Each group was subdivided into experimental and control groups. Experimental groups performed eighteen sessions of STP. Athletes were submitted to ball throwing and isokinetic strength tests to assess the muscular strength of the shoulder rotator muscles and conventional and functional balance ratios. RESULTS: STP improved external rotator peak torque (18.0 +/- 0.8 to 21.3 +/- 1.0 Nm, p < 0.01) and total work (29.3 +/- 0.9 to 34.5 +/- 1.5 J, p < 0.01) in the D experimental group, while only total work (34.8 +/- 2.5 to 37.6 +/- 3.1 J, p < 0.03) improved in the D control group. The ND experimental group also presented significant improvement in external rotator peak torque (18.8 +/- 0.8 to 21.1 +/- 1.3 Nm, p < 0.01) and total work values (29.0 +/- 1.4 to 34.6 to 1.6 J, p < 0.01) while there was no strength improvement in the ND control group. The ND experimental group showed an improvement in conventional (61.5 +/- 3.5 to 72.7 +/ 3.0%, p = 0.03) and functional (1.0 +/- 0.1 to 1.6 +/- 0.08, p < 0.01) ratios. STP did not improve the conventional ratio in the D experimental group. However, STP produced a large effect size. The D experimental group presented an improvement in ball velocity (49.0 +/- 2.4 to 52.5 +/- 2.2 km/h, p = 0.04) in standing position throwing. CONCLUSIONS: STP improves muscular strength of external rotator muscles and muscular balance. PMID- 29037618 TI - Immediate effect of mental practice with and without mirror therapy on muscle activation in hemiparetic stroke patients. AB - Mental practice (MP) consists of the repeated mental rehearsal of a physical skill without movement, called motor imagery (MI). Studies show that MP and MI associated mirror therapy (MPMT) may improve muscle control of the upper limbs in hemiparesis. This study aimed to evaluate muscle activation during active flexion of the wrist (MA), MP, and MPMT in patients with history of stroke and hemiparesis. Individuals diagnosed with stroke showing sequelae of upper limb hemiparesis were enrolled. The flexor carpi ulnaris was analyzed using electromyography during tasks (MA, MP, MPMT) involving wrist flexion. Greater electromyographic activity was detected during MP and MPMT techniques compared to active movement (p = 0.02). There was no significant difference between MP and MPMT (p = 0.56). These results were found in both the affected limb and unaffected limb. Immediate effects on muscle activation are experienced during MP and MPMT, and muscle activity was similar with both therapies. PMID- 29037619 TI - Evidence based effects of yoga practice on various health related problems of elderly people: A review. AB - More than 50% of the elderly above 60 years of age suffer from chronic medical conditions, the prevalence of which increases with age. Though Yoga has been reported as an effective modality in improving various physical and psychological aspects of elderly populations, a comprehensive review of Yoga and its effects on various health related problems of elderly populations has not yet been reported. Hence, we performed PubMed/Medline search to review relevant articles, using keyword "yoga and elderly". Relevant articles published since inception till 6th October 2016 were included for the review. Based on the available scientific literature, this review suggests that the regular practice of Yoga can be considered as an effective intervention in improving physical (reduces heart rate, blood pressure, blood glucose, oxidative damage, fatigue, weakness, fear of fall, and improve heart rate variability, baroreflex sensitivity, insulin sensitivity, physical functions, mobility, flexibility, and urinary incontinence), mental (reduces depression, anxiety), emotional (reduces anger, stress, tension and improve self-efficacy), social (improve life satisfaction), and vital (improved vitality) planes of elderly individuals, offering a better quality of sleep and quality of life. PMID- 29037621 TI - Long term activity participation. PMID- 29037620 TI - The effects of strengthening exercises for wrist flexors and extensors on muscle strength and counter-stroke performance in amateur table tennis players. AB - This study aims to evaluate the effects of strengthening exercises on wrist flexor and extensor strength, hand grip strength, and counter-stroke performance. Thirty amateur table tennis players were recruited and randomly allocated into two groups: the control and the training group (n = 15/group). Pre- and post-data were collected. The training group performed home exercises for six weeks using a bucket filled with water, while the controls were asked to keep their lifestyle as usual. The general characteristics were no significant differences. The training group showed significantly higher levels of wrist flexor and extensor strength than the control group (p < 0.05). However, the difference in hand grip strength was not statistically significant. Both groups showed significant improvement in counter-stroke performance (p < 0.05), however, there was no difference between the groups. In conclusion, specific strengthening exercises increase wrist flexor and extensor strength, but they have no effect on either hand grip strength or counter-stroke performance. PMID- 29037622 TI - What's in a name: Myofascial Release or Myofascial Induction? PMID- 29037623 TI - Osteopathic manipulative treatment for low back and pelvic girdle pain during and after pregnancy: A systematic review and meta-analysis. AB - BACKGROUND: Low back pain (LBP) is a common complaint during pregnancy. This study examined the effectiveness of osteopathic manipulative treatment (OMT) for LBP in pregnant or postpartum women. METHODS: Randomized controlled trials unrestricted by language were reviewed. Outcomes were pain and functional status. Mean difference (MD) or standard mean difference (SMD) and overall effect size were calculated. RESULTS: Of 102 studies, 5 examined OMT for LBP in pregnancy and 3 for postpartum LBP. Moderate-quality evidence suggested OMT had a significant medium-sized effect on decreasing pain (MD, -16.65) and increasing functional status (SMD, -0.50) in pregnant women with LBP. Low-quality evidence suggested OMT had a significant moderate-sized effect on decreasing pain (MD, -38.00) and increasing functional status (SMD, -2.12) in postpartum women with LBP. CONCLUSIONS: This review suggests OMT produces clinically relevant benefits for pregnant or postpartum women with LBP. Further research may change estimates of effect, and larger, high-quality randomized controlled trials with robust comparison groups are recommended. PMID- 29037624 TI - Does leg predomination affect measuring vasti muscle onsets during single leg squatting? A reliability study. AB - INTRODUCTION: Although measuring vasti muscle onset may reveal whether pain relief is associated with altering this parameter during activities in subjects with patellofemoral pain syndrome (PFPS), it may be necessary to determine whether the inherent properties of the dominant leg influences the reliability of measuring VMO-VL muscle onset. The aim of the present study was to examine the effect of leg predomination on reliability testing of the VMO-VL muscle onset measurement during single leg squatting in healthy subjects. METHODS: The onset of VMO and VL muscles of ten healthy subjects with a right dominant leg was assessed during single leg squatting. Data was collected from the muscle bellies of the VMO and VL. This procedure was performed on the both legs, during three separate single leg squats from a neutral position to a depth of approximately 30 degrees of knee flexion. Subjects were then asked to repeat the test procedure after a minimum of a week's interval. The full wave rectified onsets of VMO and VL were then calculated. RESULTS: There was no significant difference between the VMO-VL onset mean values of paired test of right and left knees. The ICC (intra class correlation coefficient) values during within and between sessions tests showed the poor reliability of these measurements on both knees. CONCLUSION: The low intratester reliability of within and between sessions measurement of VMO-VL onset on the both dominant and non-dominant legs revealed that repeatability of these measurements have little accepted reliability, however similar values of these measurements indicated that leg predomination does not affect the measurements during single leg squatting. PMID- 29037625 TI - Effects of proprioceptive neuromuscular facilitation on balance, strength, and mobility of an older adult with chronic stroke: A case report. AB - This study described the effects of a proprioceptive neuromuscular facilitation (PNF) program on balance, strength, and mobility in an older adult with chronic stroke. The patient was male, aged 69 years, with right hemiplegia for 17 years, and had diminished balance, balance confidence, lower extremity (LE) strength, and gait velocity. He received 1 h of PNF-based therapy thrice a week for six weeks. Outcome measures were: Mini-BESTest, limits of stability (LOS), Activities Specific Balance Confidence Scale (ABC), Five Time Sit-to-Stand Test (FTSST), Upright Motor Control Test (UMCT), and 10 Meter Walk Test (10 MWT). The patient improved on the Mini-BESTest (25/28, from 21/28), FTSST (27.47 s, from 30.27 s), UMCT knee extension (moderate, from weak), and 10 MWT (0.82 m/s, from 0.67 m/s); and positive changes in LOS dimensions. PNF was effective in enhancing balance, strength, and mobility in an older adult with chronic stroke and may mitigate falls risk in this population. More research is needed to determine its impact in a larger sample of older people with chronic stroke. PMID- 29037626 TI - The acute effects of ankle mobilisations on lower extremity joint kinematics. AB - INTRODUCTION: Previous investigations have identified compensatory movement strategies (CMS) within the lower extremity or lumbopelvic complex during closed chain exercises may be associated with a loss of ankle dorsiflexion range of motion (ROM). The aim of this study was to investigate the acute effects of ankle mobilisations on proximal joint kinematics during a movement task that demands a high amount of ankle dorsiflexion ROM. METHODS: Eight healthy males (mean (SD) age 25 (4) years) demonstrating side-to-side asymmetry during the weight-bearing lunge test (WBLT) and CMS during the single-leg step-down exercise were accepted for this study. Participants completed five repetitions of a single-leg step down, both before and after an ankle mobilisation intervention aimed at improving joint athrokinematics. A Vicon motion capture system recorded 3D joint and segment kinematics of the ankle, knee, hip and pelvis. A paired samples t-test was used to identify significant changes of lower extremity joint kinematics during the single-leg step-down, before and after mobilisation. RESULTS: Following the mobilisation intervention, statistically significant gains in ankle dorsiflexion ROM were identified during the WBLT [mean difference 2.425 (0.9377) centimeters, t = -7.315, p < 0.01]. No evidence was found of altered joint kinematics during the single-leg step-down. CONCLUSION: These findings indicate that increases in ankle dorsiflexion ROM do not automatically integrate into functional movement tasks. PMID- 29037627 TI - Does ultrasound therapy add to the effects of exercise and mobilization in frozen shoulder? A pilot randomized double-blind clinical trial. AB - OBJECTIVE: This study intended to determine the extent to which Ultrasound could add to the effects of exercise and manual therapy in the rehabilitation treatment of primary adhesive capsulitis. DESIGN: A pilot double blind randomized clinical trial was carried out on 50 patients suffering from primary adhesive capsulitis. Intervention included continuous 3 MHz, 1.5 w/cm2 Ultrasound, applied for the first group and sham Ultrasound for the second group. In addition specific stretching and strengthening exercises as well as glenohumeral joint mobilization were delivered to both groups. Pain (VAS), functional ability (using Oxford Shoulder Score) and shoulder range of motion were assessed at the baseline, after 10 sessions of treatment, and at 3 months follow-up. An intention to treat Mixed ANOVA analysis was performed to explore the interaction effects of time and group on outcome measures. RESULTS: No significant interaction effect of time and group was seen on pain, function and Range of Motion (p > 0.05), meaning that the amount of improvement in all outcome measures were alike in the two groups. CONCLUSION: Applying continuous Ultrasound along with a regimen of semi supervised exercise and mobilization in patients with primary adhesive capsulitis did not have any additional effect to the placebo Ultrasound, on outcome measures. Larger scale studies are needed to confirm the findings. PMID- 29037628 TI - Attention-demand effects on respiration in chronic low back pain patients. AB - Increasing attention is being drawn towards the involvement of systems other than the musculoskeletal one in the presence of low back pain (LBP). Recent evidence suggests both cognitive and respiratory functions to be affected in LBP patients. The aim of this study was to compare the effect of performance of a cognitive task on the respiratory function in LBP patients with that in control participants. Capnography and spirometry parameters of 48 participants (24 in each group) were assessed under 3 cognitive loading conditions (no, easy and difficult cognitive task). The results showed that in both groups the respiratory function was significantly affected by the introduction of the cognitive task (p < 0.05) and in the same manner (p > 0.05). Capnography and spirometry variables alterations were significantly correlated in the no-LBP group (p < 0.05) but there was no significant relationship between respiratory parameters and capnography and disability indices in the LBP group (p > 0.05). The findings of the current study suggest that while performing a cognitive task affects respiratory function, the possible differences of LBP patients and control participants may not be elicited under simple non-physically demanding postural conditions. PMID- 29037629 TI - Electromyographic activities of the abdominal muscles during 30% and 75% of maximum expiratory pressure. AB - The aim of this study was to quantify the activities of the rectus abdominis (RA), external oblique (EO), and internal oblique (IO) muscles during 30% and 75% of maximum expiratory pressure (PE max). Fifteen healthy male university students participated in this study. Electromyographic (EMG) activities of the RA, EO, and IO muscles were measured during 30% and 75% of PE max and then normalized relative to maximum voluntary contractions (%MVC). All muscles during 75% of PE max showed significantly higher %MVC compared to that during 30% of PE max (P < 0.01). The EO and IO muscles showed significantly higher %MVC compared to the RA muscle during 30% and 75% of PE max (P < 0.05). Muscle endurance and strength induced by expiratory muscle strength training might be different in each abdominal muscle. PMID- 29037631 TI - The acute effect of Bowen therapy on pressure pain thresholds and postural sway in healthy subjects. AB - OBJECTIVE: The purpose of the study is to determine the immediate effect of Bowen Therapy in pressure pain threshold and postural sway of healthy individuals. DESIGN: Crossover, randomized, and double blinded study. SETTING: University. PARTICIPANTS: Participants aged 18 years old or over, naive to Bowen therapy were recruited among university students. An a priori sample size calculation determined that 34 participants were needed. METHODS: Each participant attended two sessions and received Bowen Therapy and a sham procedure. The order in which Bowen or the sham procedure were administered was randomized. All participants had their postural control and pressure pain thresholds assessed in sessions 1 and 2 both at baseline and at the end of the session. MAIN OUTCOME MEASUREMENTS: Postural control was assessed using a force plate and centre of pressure antero posterior and medio-lateral displacement, velocity and total sway area were calculated. Pressure pain threshold was measured at 10 different body sites on the paraspinal muscles from C1 to S1 using an electronic algometer. RESULT: The results showed a significant increase in the anteroposterior displacement (p = 0.04) and a significantly lower decrease in the mean velocity (p = 0.01) of the centre of pressure and a significant increase in the pressure pain thresholds of two (out of ten; p <= 0.04) body sites in the group receiving Bowen Therapy compared to the group receiving the sham. No other significant differences were found. CONCLUSIONS: The findings suggest that Bowen Therapy has inconsistent immediate effects on postural control and pain threshold in healthy subjects. Further studies are needed using symptomatic participants. PMID- 29037630 TI - Hypoalgesic effects of three different manual therapy techniques on cervical spine and psychological interaction: A randomized clinical trial. AB - OBJECTIVE: The purpose of this study was to evaluate the extent to which psychological factors interact with a particular manual therapy (MT) technique to induce hypoalgesia in healthy subjects. METHODS: Seventy-five healthy volunteers (36 female, 39 males), were recruited in this double-blind, controlled and parallel study. Subjects were randomly assigned to receive: High velocity low amplitude technique (HVLA), joint mobilization, or Cervical Lateral glide mobilization (CLGM). Pressure pain threshold (PPT) over C7 unilaterally, trapezius muscle and lateral epicondyle bilaterally, were measured prior to single technique MT was applied and immediately after to applied MT. Pain catastrophizing, depression, anxiety and kinesiophobia were evaluated before treatment. RESULTS: The results indicate that hypoalgesia was observed in all groups after treatment in the neck and elbow region (P < 0.05), but mobilization induces more hypoalgesic effects. Catastrophizing interacted with change over time in PPT, for changes in C7 and in manipulation group. CONCLUSIONS: All the MT techniques studied produced local and segmental hypoalgesic effects, supporting the results of previous studies studying the individual interventions. Interaction between catastrophizing and HVLA technique suggest that whether catastrophizing level is low or medium, the chance of success is high, but high levels of catastrophizing may result in poor outcome after HVLA intervention. TRIAL REGISTRATION: ClinicalTrials.gov Registration Number: NCT02782585. PMID- 29037632 TI - Comparison of acute effects of superficial and deep dry needling into trigger points of suboccipital and upper trapezius muscles in patients with cervicogenic headache. AB - OBJECTIVE: The purpose of this study was to compare the acute effects of superficial and deep dry needling into trigger points of suboccipital and upper trapezius muscles in patients with cervicogenic headache. METHODS: Thirty participants (8 men, 22 women) aged 19-60 years (mean age +/- SD, 39 +/- 10 y) with a clinical diagnosis of cervicogenic headache were randomly divided into superficial and deep groups. Headache index, trigger points tenderness, cervical range of motion (CROM), functional rating index was assessed at baseline, immediate and 1 week after the treatment. RESULTS: Two approaches of dry needling showed reduction in headache index and trigger points tenderness. Deep dry needling showed greater improvement of cervical range of motion (p < 0.001) and functional rating index (p < 0.01). CONCLUSION: The application of dry needling into trigger points of suboccipital and upper trapezius muscles induces significant improvement of headache index, trigger points tenderness, functional rating index and range of motion in patients with cervicogenic headache. Deep dry needling had greater effects on CROM and function. PMID- 29037633 TI - Pilates increases the isokinetic muscular strength of the knee extensors and flexors in elderly women. AB - INTRODUCTION: Pilates has been shown to be effective for increasing muscle strength in older adults, however, some variables have not yet been explored. OBJECTIVE: Investigate the effects of Pilates on the isokinetic muscular strength of the knee extensors and flexors at 60 degrees /s, in elderly women. METHOD: Thirty-two women were randomized into two groups: control group (CG, n = 16, age = 64.2 +/- 0.8 years; BMI = 25.0 +/- 1.2 kg/m2), and experimental group (EG, n = 16, age = 63.6 +/- 1.0 years, BMI = 24.7 +/- 1.3 kg/m2). Isokinetic evaluation of the knee extensor and flexor muscles was performed at 60 degrees /s, pre- and post-intervention, considering the peak torque (N.m) and total work (J) for the right and left lower limbs. The CG participated in static stretching and the EG in Pilates sessions, twice a week for 12 weeks. RESULTS: The results demonstrated that the EG presented a significant improvement (p < 0.01) in all tests performed, when comparing the pre- and post-intervention (intragroup), with an effect size (Cohen's d) reaching 2.03 and 1.33 for the knee flexor and extensor muscles respectively. Comparing the CG and EG (intergroup), post-intervention, a significant improvement was observed (p <= 0.01) in favor of the EG for all variables, with an effect size (Cohen's d) reaching 1.59 and 1.15 for the knee flexor and extensor muscles respectively. CONCLUSION: The results indicated that 12 weeks of Pilates increases the isokinetic muscular strength of the knee extensors and flexors in elderly women and can be considered for this purpose when prescribing physical exercise programs. PMID- 29037634 TI - Pilot study: Post-operative rehabilitation pathway changes and implementation of functional closed kinetic chain exercise in total hip and total knee replacement patient. AB - OBJECTIVE: The aim of this study was to assess the feasibility of introducing a functional closed kinetic chain exercise program to an acute care setting to reduce length of hospital stay and assess tolerance to exercise immediately following total hip or total knee arthroplasty. METHODS: A protocol change implementing a functional closed kinetic chain based exercise program, post total hip (n = 535) and total knee (n = 695) arthroplasty, was performed at Windsor Regional Hospital Ouellette Campus in Windsor, Ontario Canada. A chart review was performed to compare the length of stay, post-surgery, of the new protocol to the length of stay of the previous range of motion and open kinetic chain based protocols of the previous two years. RESULTS: A significant (P-value <0.05) number of total hip and total knee arthroplasty patients reduced the length of hospital stay to less than 4 days using the closed kinetic chain program. CONCLUSION: Evidence suggests that closed kinetic chain exercises are tolerated in the acute care setting and may be useful in reducing hospital length of stay post total hip and total knee arthroplasty. PMID- 29037635 TI - The immediate effect of talocrural joint manipulation on functional performance of 15-40 years old athletes with chronic ankle instability: A double-blind randomized clinical trial. AB - OBJECTIVE: To evaluate the immediate effect of talocrural joint manipulation (TCJM) on functional performance of athletes with chronic ankle instability (CAI). PARTICIPANTS: Forty athletes (18males, 22females) with CAI divided into TCJM group (n = 20) and sham manipulation group (n = 20). INTERVENTION: TCJM was performed as a quick thrust on the involved talus, in the posterior direction. Sham manipulation was maintaining the same position, without any thrust. MAIN OUTCOME MEASURES: Functional performance of athletes was assessed with single leg hop; speed and Y balance tests, before and after the interventions. RESULTS: All functional tests evaluated in this study improved significantly after TCJM (p value<0.05). These findings were not seen in the control group. Between-group comparisons also showed significant changes for all the measurements after the interventions (p < 0.05). CONCLUSIONS: TCJM can significantly increase the functional performance of athletes with CIA and can be an effective supplementary treatment for these subjects. However, this was a pre-post study and future studies with long-term follow-ups may provide more reliable results about the long-term effectiveness of this type of treatment. PMID- 29037636 TI - Effects of Kinesio Taping(r) on knee function and pain in athletes with patellofemoral pain syndrome. AB - OBJECTIVE: To compare the knee performance and pain in athletes with patellofemoral pain syndrome (PFPS) before and after applying Kinesio Tape(r) (KT) on vastus medialis obliquus (VMO) muscle. PARTICIPANTS: Fifteen participants (10 females, five males) with unilateral PFPS were examined and compared under taped and untaped conditions. INTERVENTION: VMO of the involved leg was taped from origin to insertion, with 75% of KT's maximal length tension. MAIN OUTCOME MEASURES: Maximal eccentric and concentric peak torques of quadriceps were measured at 60 and 180 degrees /s angular velocities by an isokinetic dynamometer. Functional performance and pain were evaluated by functional tests (step-down and bilateral squat) and visual analog scale, respectively. RESULTS: Paired t-test showed statistically significant increase in VMO peak torque and also repetition of step-down test and bilateral squat after using KT. Pain intensity was also decreased significantly following KT application (p < 0.05). CONCLUSIONS: KT application over VMO can decrease pain and improve the functional performance, generally and quadriceps muscle strength, particularly, in athletes with PFPS. However, more research is needed to evaluate the long-term effects of this therapeutic procedure. PMID- 29037637 TI - Effect of yoga on the menstrual pain, physical fitness, and quality of life of young women with primary dysmenorrhea. AB - The aim of the present study was to investigate effect of specially designed yoga program on the menstrual pain, physical fitness, and quality of life (QOL) of non athlete women with primary dysmenorrhea (PD) aged 18-22 years. Thirty-four volunteers were randomly assigned into control and yoga groups. Menstrual pain, physical fitness, and QOL were evaluated at baseline and at the end of the 12 week study period. The yoga group was asked to practice yoga for 30 min per day, twice a week, for 12 weeks at home, while the control group did not receive any form of exercise over the study period. There were significant improve in menstrual pain, physical fitness, and QOL in the yoga group more than the control group. Therefore, this specially designed yoga program may be a possible complementary treatment for PD. PMID- 29037638 TI - The effects of Clinical Pilates exercises on patients with shoulder pain: A randomised clinical trial. AB - AIM: The purpose of this study was to determine the effect of Clinical Pilates exercises on patients with shoulder pain. MATERIAL AND METHODS: Thirty-three patients, experiencing shoulder pain continuously for at least four weeks were selected as study subjects. The patients were randomly divided into two groups, namely Clinical Pilates exercise (n = 17) group and conventional exercise (n = 16) group. The patients were treated for five days a week, the total treatment being carried out for 10 days. The assessment of pain and disability amongst the patients were done at the baseline and at the end of the treatment sessions, using Visual Analogue Scale (VAS) and Shoulder Pain and Disability Index (SPADI). RESULTS: The clinical Pilates exercise group showed a significant improvement in all scores used for assessment (p < 0.05), while the conventional exercise group demonstrated a significant improvement only in the SPADI total score (p < 0.05). A comparison of scores for the VAS, SPADI-Pain and SPADI-Total between the two groups, revealed a significant improvement in the Clinical Pilates exercise group (p < 0.05). CONCLUSION: It was demonstrated by the study that Clinical Pilates exercise is an efficient technique for patients experiencing shoulder pain, as it helps reduce pain and disability among them. PMID- 29037639 TI - Reliability of kinematic measures in subjects with anterior cruciate ligament deficiency during dual-task walking. AB - OBJECTIVE: To define the throughout within- and between-day reliability of gait parameters in single - and dual-task conditions in subjects with and without anterior cruciate ligament deficiency (ACLD). METHODS: Fourteen subjects with ACLD and 14 healthy subjects completed a walking task on a treadmill with three levels of velocity (self-selected, high and low), with or without performing an auditory Stroop task over two sessions each 3-5 days apart. The gait kinematic parameters, including maximum and minimum hip flexion, total hip range of motion, maximum and minimum knee flexion and total knee range of motion were recorded using a motion analysis system. The intraclass correlation coefficient (ICC), the standard error of measurement (SEM), and the coefficient of variation (CV) were used to determine inter- and intrasession reliability of kinematic and cognitive measures. RESULTS: ICCs for ACLD group in dual-task and single task conditions ranged between 0.50 to 0.93 and 0.53 to 0.93, respectively. ICC values for healthy groups in dual-task and single task conditions ranged between 0.36 to 0.90 and 0.39 to 0.87, respectively. When comparing relative reliability across kinematic variables in different velocities, ICC values were generally identical in all three levels of velocity. CONCLUSION: The findings suggest that dual tasking could also be applied reliably for the assessment of functional activities in subjects with and without ACLD. PMID- 29037640 TI - Effect of movement control and stabilization exercises in people with extension related non -specific low back pain- a pilot study. AB - BACKGROUND: Exercise is considered an effective treatment strategy for non specific chronic low back pain (NSCLBP).background In spite of the wide use of exercise protocols, it is not clear what type of exercise is more effective in decreasing pain, disability and normalizing muscle activation patterns in people with chronic low back pain. OBJECTIVES: To assess the effects of two exercise protocols (stabilization vs movement control) on pain and disability scores and the flexion relaxation ratio (FRR) of lumbar multifidus (LM) and iliocostalis lumbarum pars thoracic (ICLT) in people with extension related non-specific chronic low back pain. STUDY DESIGN: Pilot randomized control trial. METHODS: 32 subjects with active extension pattern chronic low back pain (stabilization group = 16, movement control group = 16) participated in this study. Treatment groups received 4 weeks of exercise therapy. Outcomes were based on pain score (Numeric rating Scale-NRS), disability (Oswestry Disability Index- ODI) and FRR of the LM and ICLT. RESULTS: Four people dropped out of the study in each group for reasons unrelated to the protocols of the study. Pain and disability reduced in both groups, with no significant difference between the groups. The FRR of LM did not change in either treatment group after treatment. However, the FRR of ICLT was significantly increased after treatment in the movement control group. CONCLUSION: Both movement control and stabilization exercises reduced pain and disability in the short-term among people with extension pattern NSCLBP, with no difference in effectiveness between the groups. However, movement control exercises were more effective in normalizing back muscle activation patterns than stabilization exercises. PMID- 29037641 TI - Impact of osteopathic therapy on proprioceptive balance and quality of life in patients with dizziness. AB - The aim of the study was to evaluate the efficacy of osteopathic manipulative treatment (OMT) in patients with Benign-Paroxysmal-Positional Vertigo (BPPV). Thirty-one patients with BPPV were randomly assigned into two groups: 19 patients received osteopathic treatments (TG) and 12 patients received sham therapy (SG), both in four weekly sessions. Before the first and the last treatment, those patients were evaluated using Dizziness Handicap Inventory (DHI) and stabilometric platform to assess lifestyle modification and balance functions. After the treatment session, TG compared to SG showed an improvement in DHI global (p = 0.02), functional (p = 0.03) and physical (p = 0.03) components, as well as a reduction of swinging area (p = 0.02). An association between swinging area and lifestyle measures (global [r = 0.53; p = 0.02]; functional [r = 0.50; p = 0.03]; physical [r = 0.60; p = 0.01]) changes were found in TG. These findings suggest that OMT could be a useful approach to reduce imbalance symptoms and to improve the quality of life in patients suffering from dizziness. PMID- 29037642 TI - Rebound boots change lower limb muscle activation and kinematics during different fitness exercises. AB - The purpose of this study was to evaluate electromyography and kinematic parameters of the lower limbs using rebound boots (RB) and barefoot during a gym workout. This information can be helpful to practitioners to schedule rehabilitation and training programs. Ten women (25 +/- 9 years) volunteered for the study; inclusion criteria were as follows: subjects must have experienced the use of RB and the analyzed exercises for at least 6 months, and have no previous injuries in the lower limbs. Seven exercises were performed for 30 s with the RB and subsequently barefoot. Data from muscle activation of vastus lateralis (VL), biceps femoris (BF), lateral gastrocnemius (LG) and 2D kinematics were collected. The use of RB triggered postural changes, characterized by greater hip extension (in 4 of the exercises) and knee extension (in 6 of the exercises) for the landing. RB reduced activation mainly in LG (in 6 of the exercise) while no changes were observed for VL (except in exercise 1) and BF. RB change kinematics and muscle activation suggesting changes in the way the legs absorb and transmit force during jumps. LG was the main muscle affected by the use of RB. PMID- 29037643 TI - Immediate effect of common peroneal nerve electrical stimulation on quadriceps muscle arthrogenic inhibition in patients with knee osteoarthritis. AB - OBJECTIVE: To investigate the immediate effect of electrical stimulation of the common peroneal nerve on the maximum voluntary activation of the quadriceps muscle in patients with knee osteoarthritis. METHODOLOGY: Fifteen subjects with knee osteoarthritis (mean age: 50.5 +/- 13 years) participated in this study. To measure the arthrogenic inhibition ratio of quadriceps, a burst of electrical stimulation was superimposed on the maximum voluntary contraction, and the percentage of change in the force production was computed. The same measurement was also performed with concurrent electrical stimulation of the common peroneal nerve. RESULTS: All the patients with knee osteoarthritis showed significant arthrogenic inhibition of the quadriceps muscle. The stimulation of the common peroneal nerve was able to reduce this inhibition and increase the capacity of the muscle to produce a significantly higher knee extension force (p = 0.028). CONCLUSIONS: Electrical stimulation of the common peroneal nerve concurrent with the maximum voluntary effort can remove the arthrogenic inhibition of the quadriceps muscle in patients with knee osteoarthritis. This finding could have clinical implications in the management of patients with knee disorders. PMID- 29037644 TI - Low handgrip strength levels among adolescents in a city in southern Brazil. AB - OBJECTIVE: To estimate the prevalence of low handgrip strength (HGS) levels and sociodemographic characteristics, health behaviours and body fatness status related in adolescents. METHOD: Cross-sectional epidemiological study with 636 adolescents aged 14-19 years in a city in southern Brazil. HGS was measured by dynamometer. Sociodemographic and behavioural data were collected using self report questionnaires. Body mass and height was measured by Body Mass Index. RESULTS: Prevalence of low HGS levels was 47% (63.5% boys, 37.7% girls). Boys aged 14-16 years were more likely to have low HGS levels. Girls who were of higher socioeconomic status and who were less physically active were more likely to have low HGS levels. Overweight girls were less likely to have low HGS levels. CONCLUSIONS: High prevalence of low HGS levels was observed in adolescents. Increased HGS levels should be focused on younger boys and normal-weight girls with higher socioeconomic status and lower levels of physical activity. PMID- 29037645 TI - Postural insoles on gait in children with cerebral palsy: Randomized controlled double-blind clinical trial. AB - The aim of the present study was to assess the effect of postural insoles on gait performance in children with Cerebral Palsy (CP). Twenty four children between four and 12 years of age were randomly allocated either the control group (n = 12) or experimental group (n = 12). The control group used placebo insoles and the experimental group used postural insoles. Three-dimensional gait analysis was performed under three conditions: barefoot, in shoes and in shoes with insoles. Three evaluations were carried out: 1)immediately following placement of the insoles; 2)after three months of insole use; and 3)one month after suspending insole use. Regarding the immediate effects and after three months use of insole, significant improvements in gait velocity and cadence were found in the experimental group, along with an increase in foot dorsiflexion, a reduction in knee flexion and a reduction in internal rotation. Conversely, these changes were not maintained in the third assessment, one month after withdrawal of the insoles. The use of postural insoles led to improvements in gait performance in children with CP. PMID- 29037646 TI - Impact of physical growth, body adiposity and lifestyle on muscular strength and cardiorespiratory fitness of adolescents. AB - OBJECTIVE: To investigate the impact of physical growth, body adiposity and lifestyle on cardiorespiratory fitness and muscle strength of pubescent and post pubescent adolescents. METHODS: Cross-sectional study with 1132 adolescents (14 19 years) in Brazil. Aerobic fitness was measured using the modified Canadian Aerobic Fitness Test. Muscle strength was assessed using manual dynamometer. Maturational stages were defined through the Tanner criteria. RESULTS: Boys at pubertal maturation stage showed higher VO2max values than those at the post pubertal stage when the influence of body adiposity and lifestyle was disregarded. Girls at pubertal maturation stage showed higher VO2max values than those in the post-pubertal stage when the influence of age was disregarded. For muscle strength, no significant differences were found. CONCLUSIONS: The variables that influence the association between VO2max and maturational stage are different for boys and girls. PMID- 29037647 TI - A critical overview of the current myofascial pain literature - October 2017. AB - In this overview of the myofascial pain literature, we have included several original contributions ranging from a study by Bowen and colleagues of trigger points in horses to the introduction of a new clinical entity of "laryngeal muscle myofascial pain syndrome in dysphonic patients." Minerbi and colleagues described for the first time the referred pain patterns of the longus colli muscle, while Casale and associates studied the spinal modulatory action of dry needling or acupuncture stimulation. Many dry needling articles are included in this overview with several recent outcome studies. Slowly, there is increasing scientific support for using dry needling for a variety of conditions. Several researchers explored specific aspects of dry needling, such as needle placements, whether eliciting a local twitch response is desired, and the role of psychological factors in post-needling soreness. Contributions originated in Australia, Belgium, Brazil, Canada, China, Germany, Greece, India, Israel, Italy, Korea, Portugal, Spain, Switzerland, Turkey, the UK, and the USA. PMID- 29037648 TI - Test-retest reliability of myofascial trigger point detection in hip and thigh areas. AB - BACKGROUND: Myofascial trigger points (MTrP's) are a primary source of pain in patients with musculoskeletal disorders. Nevertheless, they are frequently underdiagnosed. Reliable MTrP palpation is the necessary for their diagnosis and treatment. The few studies that have looked for intra-tester reliability of MTrPs detection in upper body, provide preliminary evidence that MTrP palpation is reliable. Reliability tests for MTrP palpation on the lower limb have not yet been performed. OBJECTIVE: To evaluate inter- and intra-tester reliability of MTrP recognition in hip and thigh muscles. DESIGN: Reliability study. SUBJECTS: 21 patients (15 males and 6 females, mean age 21.1 years) referred to the physical therapy clinic, 10 with knee or hip pain and 11 with pain in an upper limb, low back, shin or ankle. METHODS: Two experienced physical therapists performed the examinations, blinded to the subjects' identity, medical condition and results of the previous MTrP evaluation. Each subject was evaluated four times, twice by each examiner in a random order. Dichotomous findings included a palpable taut band, tenderness, referred pain, and relevance of referred pain to patient's complaint. Based on these, diagnosis of latent MTrP's or active MTrP's was established. The evaluation was performed on both legs and included a total of 16 locations in the following muscles: rectus femoris (proximal), vastus medialis (middle and distal), vastus lateralis (middle and distal) and gluteus medius (anterior, posterior and distal). RESULTS: Inter- and intra-tester reliability (Cohen's kappa (kappa)) values for single sites ranged from -0.25 to 0.77. Median intra-tester reliability was 0.45 and 0.46 for latent and active MTrP's, and median inter-tester reliability was 0.51 and 0.64 for latent and active MTrPs, respectively. The examination of the distal vastus medialis was most reliable for latent and active MTrP's (intra-tester k = 0.27-0.77, inter tester k = 0.77 and intra-tester k = 0.53-0.72, inter-tester k = 0.72, correspondingly). CONCLUSIONS: Inter- and intra-tester reliability of active and latent MTrP evaluation was moderate to substantial. Palpation evaluation can be used for clinical diagnosis of MTrP's in the hip and thigh muscles. SIGNIFICANCE: This study provides evidence that MTrP palpation is a moderately reliable diagnostic tool in the hip and thigh muscles and can be used in clinical practice and research. PMID- 29037649 TI - A comparison of the effect of the active release and muscle energy techniques on the latent trigger points of the upper trapezius. AB - BACKGROUND/AIM: The increasing use of computer in daily life has brought about numerous musculoskeletal problems. Impairments in the head, neck and shoulders are more common compared with the other parts of the body. The aim of this study was to compare the effect of two manual treatments in two separate groups, i.e., active release technique (ART) and muscle energy technique (MET) on the latent trigger points (LTrPs) in the upper trapezius muscle. The set criteria in the study included the active range of cervical lateral flexion, pain intensity on the visual analog scale (VAS), and the upper trapezius muscle thickness. SUBJECTS AND METHODS: This clinical trial study assessed the outcome measures within and between groups before and after the intervention. The target population were 64 (32 males, 32 females) participants who had been selected from among the staff members and the students of a rehabilitation school, and the employees of an engineering company who had LTrPs in their upper trapezius muscle and were from 18 to 50 years old. RESULTS: The immediate effects of MET and ART on the patients of each groups with LTrPs in their upper trapezius muscle were increased active range of cervical lateral flexion (P < 0.001), decreased pain intensity on VAS (P < 0.05) and decreased thickness of the upper trapezius muscle (P < 0.01). CONCLUSION: Both manual techniques of ART and MET reduced the symptoms of LTrPs in the upper trapezius in the two groups equally, neither technique being superior to the other. PMID- 29037650 TI - The intra-rater reliability of locating and measuring the severity of latent trigger points in the quadriceps. AB - BACKGROUND: Trigger points (TrPs) in the lower-limb are under-investigated and may be a contributory factor in knee pathologies. OBJECTIVES: The purpose of this study was to establish the intra-rater reliability of assessing the location and severity of latent TrPs in the quadriceps. METHODS: Twenty-nine asymptomatic subjects were palpated for TrPs in the middle and quadriceps. The location and severity was then measured using the anatomical landmark system (ALS) and pain pressure threshold (PPT). The subject was re-tested the next day. RESULTS: The intra-class coefficient [ICC(3,1)] for the ALSs and PPTs were found to be reliable. Gender appears to be a factor in the severity of TrPs in the quadriceps. Females reported some of the features of TrPs more often than males (jump sign, twitch response, referred pain). CONCLUSION: Further investigation is needed to understand the relationship between TrPs around the knee and knee pathologies, particularly in females. PMID- 29037651 TI - Effect of ischemic compression for cervicogenic headache and elastic behavior of active trigger point in the sternocleidomastoid muscle using ultrasound imaging. AB - OBJECTIVES: To investigate the effect of ischemic compression on clinical outcomes of a cervicogenic headache and elastic behavior of myofascial trigger points. DESIGN: Randomized, controlled trial. SETTING: Outpatient headache clinic. SUBJECTS: 19 subjects with a cervicogenic headache originating from myofascial trigger point within the sternocleidomastoid muscle. INTERVENTIONS: Subjects were randomized in treatment group (n = 9) and control group (n = 10). Subjects in the treatment group received 4 sessions of ischemic compression in the myofascial trigger point region. MAIN MEASURES: Headache intensity, frequency, and duration, trigger point elastic modulus, trigger point area, pressure tolerance, and pressure pain threshold were assessed before and after treatment. RESULTS: Subjects in the treatment group compared with those in control group showed significant improvements in headache intensity (P = 0.002), headache frequency (P = 0.005), headache duration (P = 0.015), pressure tolerance (P < 0.001), pressure pain threshold (P = 0.039), and myofascial trigger point area (P = 0.017). Changes in myofascial trigger point elastic modulus did not reach a significant level (P > 0.05). CONCLUSION: The improvements in outcome measures suggest that ischemic compression may be effective in subjects with a cervicogenic headache associated with a myofascial trigger point in the sternocleidomastoid muscle. Data suggests that biomechanical properties of MTrP and severity of headache symptoms are not directly linked, and other mechanisms could be more influential in contributing to symptoms. PMID- 29037652 TI - The local twitch response during trigger point dry needling: Is it necessary for successful outcomes? AB - BACKGROUND: Myofascial trigger point (MTrP) injection and trigger point dry needling (TrPDN) are widely accepted therapies for myofascial pain syndrome (MPS). Empirical evidence suggests eliciting a local twitch response (LTR) during needling is essential. OBJECTIVE: This is the first review exploring the available literature, regardless of study design, on the neurophysiological effects and clinical significance of the LTR as it relates to reductions in pain and disability secondary to MTrP needling. METHODS: PubMed, MEDLINE, Science Direct and Google Scholar were searched up until October 2016 using terms related to trigger point needling and the LTR. RESULTS: and Discussion: Several studies show that eliciting a LTR does not correlate with changes in pain and disability, and multiple systematic reviews have failed to conclude whether the LTR is relevant to the outcome of TrPDN. Post needling soreness is consistently reported in studies using repeated in and out needling to elicit LTRs and increases in proportion to the number of needle insertions. In contrast, needle winding without LTRs to MTrPs and connective tissue is well supported in the literature, as it is linked to anti-nociception and factors related to tissue repair and remodeling. Additionally, the positive biochemical changes in the MTrP after needling may simply be a wash out effect related to local vasodilation. While the LTR during TrPDN appears unnecessary for managing myofascial pain and unrelated to many of the positive effects of TrPDN, further investigation is required. PMID- 29037653 TI - Adolescent idiopathic scoliosis: The Tethered Spine III: Is fascial spiral the key? AB - This article reports on an observational and treatment case series involving 22 adolescents and preadolescents treated over a 15 year period who had or appeared to be developing idiopathic scoliosis (IS). Common patterns of muscle and fascial asymmetry were observed and treated. Most of these individuals had spinal area pain and the trigger points (TrPs) apparently responsible for this pain were located in muscles at some distance from the spine, yet referred pain to locations throughout the thoracolumbar spine. Asymmetries in tension in these muscles appear to tether the spine in such a way as to contribute to scoliotic curvatures. The most common pattern of asymmetrical muscle tension found in these individuals follows a particular spiral fascial plane and as the fascia in this spiral plane tightened, the scoliotic curvature appeared to increase. Evaluation also showed that 21 of 22 of these individuals have major ligamentous laxity and this may also have contributed to the development of scoliotic curvatures. Furthermore, each of these individuals has marked overpronation of the ankles, with arches that totally collapse when weight-bearing. Based on observation during the care of these 22 subjects, it appears that asymmetry in the degree of pronation may, in some individuals, be a contributing factor in the development of the spiral body organization involved in the development of scoliosis. Common patterns of joint dysfunction were also observed in many of these individuals. There were also some findings of significant muscle weaknesses that appeared to contribute to the development of the spiraling body organization. Treatment of the tethering of the spine from myofascial asymmetries and related joint dysfunction not only resulted in elimination of pain in almost all cases but also, in many cases resulted in significant reduction of scoliotic curvatures including reductions of rib humps. In other cases, it resulted in stabilization of scoliotic curvatures, and in some cases it may have slowed the rate of progression of curvatures. Stretching and strengthening exercises appeared to contribute to the stability of treatment gains. A segment of the treated population had atypical scoliotic curvatures that did not follow the typical spiral pattern. Even in these individuals, there were significant patterns of fascial restriction and joint dysfunction accompanying the curvatures. Prior traumatic injury was a common factor in almost all of these atypical cases. Treatment of myofascial TrPs and asymmetrical fascial tension and accompanying joint dysfunction is proposed as a useful approach to treating pain in adolescents who have or who appear to be developing scoliosis and to treating and controlling and/or decreasing many scoliotic curvatures. This case series is presented as a way to illuminate possible factors in the development of scoliosis and promising treatment strategies to address these factors and to eliminate pain and stabilize or decrease curvatures so that further research can more systematically evaluate the role of these factors. An addendum of two more cases is also included, because of the information that these cases add to the discussion and to treatment approaches. Including the addendum cases, 8 of the subjects had scoliosis as documented by x-rays. The other 16 appeared to be developing scoliosis according to criteria stated below. PMID- 29037654 TI - Systemic sclerosis: Association between physical function, handgrip strength and pulmonary function. AB - BACKGROUND: Systemic sclerosis (SSc) is a multisystem disease affecting the skin, respiratory system and skeletal muscles. In SSc patients, hand function disability is the major factor limiting daily activities. AIM: To evaluate the association of physical function with handgrip strength and pulmonary function in SSc patients. A further aim was to assess the relationship between handgrip strength and pulmonary function in patients with SSc. METHOD: A cross-sectional study in which 28 patients with SSc underwent isometric handgrip strength (IHGS) measurement and pulmonary function tests and completed the Health Assessment Questionnaire Disability Index (HAQ-DI) to measure physical function. RESULTS: The HAQ-DI scores were associated with the IHGS (rs = -0.599, P = 0.001) and pulmonary function parameters, particularly the diffusion capacity for carbon monoxide (DLco; rs = -0.642, P = 0.0004). CONCLUSION: In patients with SSc, the degree of physical disability is associated with both hand grip strength and pulmonary function. However, there is no relationship between handgrip strength and pulmonary function in these patients. PMID- 29037655 TI - Differences in pressure pain threshold among men and women after foam rolling. AB - BACKGROUND: Rehabilitation professionals often prescribe foam rolling as an intervention to augment other manual therapies or as a warm-up or recovery after athletic activity. Currently, there is a gap in the literature regarding how foam rolling effects the pressure pain threshold (PPT) among men and women. PURPOSE: The purpose of this study was to examine the immediate effects of a foam rolling intervention on the ipsilateral agonist, antagonist, and contralateral muscle group PPT among men and women. SETTING: University kinesiology laboratory. PARTICIPANTS: Twenty healthy adults (M = 10, F = 10; mean age = 27.4 +/- 8.5 years). RESEARCH DESIGN: Pre-test, post-test observational study. INTERVENTION: Video-guided foam roll intervention on the left quadriceps group. MAIN OUTCOME MEASURES: Ipsilateral quadriceps, ipsilateral hamstring, and contralateral quadriceps muscle PPT. RESULTS: Within group comparison for men, revealed a statistically significant effect of time on PPT for the left quadriceps (p=<0.001), left hamstring (p = 0.001), and right quadriceps (p=<0.001). For women, there was a statistically significant effect of time on PPT for the left quadriceps (p = 0.001), left hamstring (p = 0.007), and right quadriceps (p=<0.001). No significant difference in PPT between men and women were found for the left quadriceps (p = 0.31), left hamstring (p = 0.13), and right quadriceps (p = 0.070) muscle groups. CONCLUSIONS: These finding suggest that foam rolling can immediately reduce PPT in the ipsilateral agonist, antagonist, and contralateral muscle groups among men and women. Future investigations are needed to determine the long-term effects of foam rolling on PPT among sexes. PMID- 29037656 TI - Demystifying shoulder pain with electrodiagnosis and musculoskeletal ultrasound imaging. PMID- 29037657 TI - Procedures of assessment on the quantification of thoracic kyphosis and lumbar lordosis by radiography and photogrammetry: A literature review. AB - The quantification of thoracic kyphosis and lumbar lordosis can be assessed in different ways; among them radiography and photogrammetry. However, the assessment procedures are not consistent in the literature for either method. The objective of this study was to conduct a literature review about postural assessment through radiography and photogrammetry, for delineating the procedures for both methods. In total 38 studies were selected by an online search in the MEDLINE and LILACS databases with the keywords: radiograph and posture, postural alignment, photogrammetry or photometry or biophotogrammetry. For the radiographic method, the results showed divergences in arm positioning and in the calculation of thoracic and lumbar angles. The photogrammetry demonstrated differences in relation to the camera, tripod, plumb line and feet positioning, angle calculation, software utilization, and the use of footwear. Standardization is proposed for both methods to help establish normative values and comparisons between diagnoses. PMID- 29037658 TI - Simple artificial training device for respiratory muscle strength and lung volumes in healthy young male and female subjects: A pilot study. AB - OBJECTIVE: The aim of this study was to evaluate the efficiency of a simple artificial device for respiratory muscle strength training and lung volumes using either combined or non-combined exercise with elastic bands in healthy young participants. METHODS: Forty healthy young participants (20 male and 20 female) aged 19-24 years old were randomized into two main experiments with four sub groups; (1) artificial device (n = 10) & standard device (n = 10) training, and (2) artificial device training combined with elastic band (EB) exercise (n = 10) & standard device training combined with EB (n = 10) exercise. Respiratory muscle strength with maximal peak inspiratory pressure (PImax), and lung volumes; tidal volume (TV), inspiratory reserve volume (IRV), expiratory reserve volume (ERV) and vital capacity (VC) were evaluated before and after training once daily for 3 weeks. Moreover, the peak dyspnea score and vital sign parameters were compared between the experimental groups after final training. RESULTS: All parameters had no statistical differences (p > 0.5) between the training devices alone and those combined with EB exercise prior to any experiments. Results from the first experiment showed that training with an artificial device increased all parameters (PImax, VC, IRV, ERV) significantly (p < 0.05), except for TV, when compared to pre training results, which were the same as those in the standard device training group. No statistical difference was shown between these groups after the training period had been performed. Furthermore, results of applying artificial device training combined with EB exercise showed a significant increase in all parameters, except for TV, and they were the same as the increased results in training with the standard device combined with EB exercise. There was no significant difference of data between these groups after the training period. Finally, the results of peak dyspnea score and all vital sign parameters from using the artificial device, with or without EB exercise, showed no statistical difference when compared to use of the standard device. CONCLUSION: This study proposed that a simple artificial device can be used to train the respiratory muscle with or without elastic band exercise in healthy young subjects. PMID- 29037659 TI - The accuracy of wide-field ultrasound biomicroscopy in localizing extraocular rectus muscle insertions in strabismus reoperations. AB - PURPOSE: To compare the accuracy of widefield ultrasound biomicroscopy (UBM) with mechanical intraoperative measurements of the distance between rectus muscle insertions and the corneal limbus in strabismus reoperations. METHODS: Subjects with a history of horizontal rectus muscle surgery who required further surgery on horizontal rectus muscle(s) were recruited prospectively. All widefield UBM measurements were carried out under topical anesthesia using a 50 MHz linear probe without immersion cup and external caliper. The insertion angle distance was measured using the caliper tool of the UBM device; the actual muscle insertion distance from the limbus was considered to be the measured distance plus 1 mm. The distance from muscle insertion to the limbus was also measured intraoperatively. The results of UBM and surgical measurements were compared. RESULTS: A total of 28 subjects were recruited, and 53 horizontal muscles (30 medial rectus, and 23 lateral rectus muscles) were included. The longest distance of the muscle insertion from limbus detectable on UBM was 13 mm for the medial rectus muscle and 15 mm for the lateral rectus muscle. In 38 muscles (71.7%) UBM and surgical measurements were within 1 mm of each other. Only in 1 muscle (1.9%) was the difference between measurements >2 mm (2.3 mm). The intraclass correlation coefficient was 0.87, demonstrating excellent agreement between measurements. Limit of agreement analysis demonstrated better agreement between measurements of medial rectus muscles and in consecutive exotropia cases. CONCLUSIONS: This study demonstrated good agreement between intraoperative and widefield UBM measurements of the muscle insertion-limbus distance in our patient cohort. PMID- 29037660 TI - NMDA receptor blockade specifically impedes the acquisition of incentive salience attribution. AB - Glutamatergic signaling plays an important role in learning and memory. Using Pavlovian conditioned approach procedures, the mechanisms that drive stimulus reward learning and memory have been investigated. However, there are instances where reward-predictive stimuli can function beyond being solely predictive and can be attributed with "motivational value" or incentive salience. Using a Pavlovian conditioned approach procedure consisting of two different but equally predictive stimuli (lever vs. tone) we investigated the role NMDA receptor function has in the attribution of incentive salience. The results revealed that the administration of MK-801, an NMDA receptor antagonist, during acquisition of Pavlovian conditioned approach promoted goal-tracking to a lever stimulus, while control animals learned to sign-track. Moreover, within the same animals, the use of a tone stimulus elicited goal-tracking responses that were unaffected by MK 801 pretreatments. Furthermore, a lever CS that elicited sign-tracking served as a more robust conditioned reinforcer than a tone CS that elicited goal-tracking or a lever CS that elicited goal-tracking via MK-801 pretreatments. Collectively, these results demonstrate that NMDA receptor antagonism can alter the stimulus reward relationship learned and prevent the attribution of incentive salience, rather than impede general learning. PMID- 29037662 TI - Effects of pharmacological manipulation of the kappa opioid receptors on the aversive effects of nicotine. AB - Nicotine, an addictive component of tobacco smoke, produces both rewarding and aversive effects. Increasing the aversive effects of nicotine may help in promoting smoking cessation. However, neural targets mediating the aversive effects of nicotine have not been fully identified. In this study, we evaluated the role of kappa opioid receptors (KORs) in the aversive effects of nicotine (0.4 mg/kg, base; s.c.) using the nicotine-induced conditioned taste aversion (CTA) model in Wistar rats. The KORs were activated using the selective KOR agonist (+/-)U-50,488H (0, 0.03, 0.15 & 0.3mg/kg; s.c.) and inhibited using the KOR antagonist nor-binaltorphimine (nor-BNI; 0, 15 & 30mg/kg; s.c.) in separate groups of rats using a between-subjects design. Pretreatment with the KOR agonist (+/-)U-50,488H (0.3mg/kg) significantly increased aversion for the nicotine associated solution. Additionally, (+/-)U-50,488H (0.3mg/kg) on its own induced aversion to the flavored solution associated with it even in the absence of nicotine, suggesting that the KOR agonist induced increase in nicotine-induced aversion was an additive effect. Interestingly, administration of the KOR antagonist nor-BNI (30mg/kg) prior to conditioning with nicotine/saline, but not after conditioning with nicotine/saline, attenuated nicotine-induced aversive effects compared to saline controls. Taken together, these data suggest a role for KORs in the aversive effects of nicotine. PMID- 29037661 TI - Antisense oligonucleotide therapy rescues disruptions in organization of exploratory movements associated with Usher syndrome type 1C in mice. AB - Usher syndrome, Type 1C (USH1C) is an autosomal recessive inherited disorder in which a mutation in the gene encoding harmonin is associated with multi-sensory deficits (i.e., auditory, vestibular, and visual). USH1C (Usher) mice, engineered with a human USH1C mutation, exhibit these multi-sensory deficits by circling behavior and lack of response to sound. Administration of an antisense oligonucleotide (ASO) therapeutic that corrects expression of the mutated USH1C gene, has been shown to increase harmonin levels, reduce circling behavior, and improve vestibular and auditory function. The current study evaluates the organization of exploratory movements to assess spatial organization in Usher mice and determine the efficacy of ASO therapy in attenuating any such deficits. Usher and heterozygous mice received the therapeutic ASO, ASO-29, or a control, non-specific ASO treatment at postnatal day five. Organization of exploratory movements was assessed under dark and light conditions at two and six-months of age. Disruptions in exploratory movement organization observed in control-treated Usher mice were consistent with impaired use of self-movement and environmental cues. In general, ASO-29 treatment rescued organization of exploratory movements at two and six-month testing points. These observations are consistent with ASO 29 rescuing processing of multiple sources of information and demonstrate the potential of ASO therapies to ameliorate topographical disorientation associated with other genetic disorders. PMID- 29037663 TI - Unilateral forelimb sensorimotor cortex devascularization disrupts the topographic and kinematic characteristics of hand movements while string-pulling for food in the rat. AB - String-pulling by the rat is a bimanual act, in which an upright animal retrieves a piece of food attached to the end of the string by downward hand-over-hand movements. The present study compared the movements of string-pulling, using topographic and kinematic measures of hand movement, in control rats and rats with unilateral sensorimotor motor cortex lesion produced by removal of the pia matter. In the first week following devascularization, the rhythmicity and accuracy of string-pulling movements decomposed; however, thereafter the rhythm of bilateral alternation was restored. Over 70days of testing, distance traveled decreased for both hands in the control and lesion groups, suggesting that both groups displayed an increase in string-pulling efficiency. Nevertheless, the lesion group exhibited more missed string contacts with the (contralateral-to lesion) hand and more grasps in which the string was hooked between the digits with both hands. In addition, an increase in mouth grasps was observed in the lesion group. Motion capture analyses revealed that the lesion group exhibited longer reach and withdraw movements and these movements were longer for the ipsilateral-to-lesion vs contralateral-to-lesion hand. Thus, although rhythmicity of string-pulling behavior recovers after sensorimotor cortex devascularization, the contralateral-to-lesion hand contributed less to string pulling and requires mouth grasps to stabilize the string for grasping. The results are discussed in relation to contemporary theories of the contributions of the forelimb motor cortex to skilled movement and the potential use of string-pulling as a therapy for brain injury. PMID- 29037664 TI - Simultaneous optimization of the ultrasound-assisted extraction for phenolic compounds content and antioxidant activity of Lycium ruthenicum Murr. fruit using response surface methodology. AB - Lycium ruthenicum Murr. (LR) is a functional food that plays an important role in anti-oxidation due to its high level of phenolic compounds. This study aims to optimize ultrasound-assisted extraction (UAE) of phenolic compounds and antioxidant activities of obtained extracts from LR using response surface methodology (RSM). A four-factor-three-level Box-Behnken design (BBD) was employed to discuss the following extracting parameters: extraction time (X1), ultrasonic power (X2), solvent to sample ratio (X3) and solvent concentration (X4). The analysis of variance (ANOVA) results revealed that the solvent to sample ratio had a significant influence on all responses, while the extraction time had no statistically significant effect on phenolic compounds. The optimum values of the combination of phenolic compounds and antioxidant activities were obtained for X1=30min, X2=100W, X3=40mL/g, and X4=33% (v/v). Five phenolic acids, including chlorogenic acid, caffeic acid, syringic acid, p-coumaric acid and ferulic acid, were analyzed by HPLC. Our results indicated that optimization extraction is vital for the quantification of phenolic compounds and antioxidant activity in LR, which may be contributed to large-scale industrial applications and future pharmacological activities research. PMID- 29037665 TI - Unit and internal chain profiles of maca amylopectin. AB - Unit chain length distributions of amylopectin and its phi, beta-limit dextrins, which reflect amylopectin internal structure from three maca starches, were determined by high-performance anion-exchange chromatography with pulsed amperometric detection after debranching, and the samples were compared with maize starch. The amylopectins exhibited average chain lengths ranging from 16.72 to 17.16, with ranges of total internal chain length, external chain length, and internal chain length of the maca amylopectins at 12.49 to 13.68, 11.24 to 11.89, and 4.27 to 4.48. The average chain length, external chain length, internal chain length, and total internal chain length were comparable in three maca amylopectins. Amylopectins of the three maca genotypes studied here presented no significant differences in their unit chain length profiles, but did show significant differences in their internal chain profiles. Additional genetic variations between different maca genotypes need to be studied to provide unit- and internal chain profiles of maca amylopectin. PMID- 29037666 TI - Multi-class analysis for simultaneous determination of pesticides, mycotoxins, process-induced toxicants and packaging contaminants in tea. AB - This study attempts at uniting the analysis of four different classes of contaminants for both liquid and solid tea samples. A total of 32 compounds, classified as pesticides, mycotoxins, process-induced toxicants or packaging contaminants, were carefully chosen for their diversity of structures and physicochemical properties. The proposed method combines a sample treatment strategy coming from metabolomics with liquid chromatography analysis using a silica bonded C18-pentafluorophenyl column coupled to high resolution mass spectrometry. For tea brew, dilute and shoot method provides good quantification (70-120% recoveries and <20% RSD) for more than 80% of compounds. For tea leaves, strong matrix effects are observed, thus, matrix-matched calibration is required to reach good performances, i.e. 63% of compounds quantified and 81% detected at 10ug/kg. Finally, method performances were evaluated against existing regulations, and it appears that 69% of contaminants are quantified and 91% detected at levels lower than their respective European regulation limits. PMID- 29037667 TI - Hexafluoroisopropanol-induced salt-free catanionic surfactant coacervate extraction method for determination of fluoroquinolones in milk samples. AB - Coacervation and phase separation were first reported in salt-free catanionic surfactant aqueous systems based on lauric acid (LA) and dodecyltrimethylammonium hydroxide (DTAOH), using hexafluoroisopropanol (HFIP) as a coacervate-inducing agent. The liquid-liquid two-phase separation occurs over a wide of LA/DTAOH molar ratios (78:22-0:100mol/mol) and total surfactant concentrations (5-200mmolL 1) upon adding a small amount of HFIP (<10%, v/v). HFIP-induced salt-free LA/DTAOH catanionic surfactant system has much wider two-phase region than HFIP induced salt-containing sodium laurate/dodecyltrimethylammonium bromide system. A HFIP-induced LA/DTAOH coacervate extraction method was established and coupled to high-performance liquid chromatography-ultraviolet detector (HPLC-UV) for determination of fluoroquinolones (rufloxacin, ciprofloxacin, danofloxacin, enrofloxacin) in milk. Detection limits are from 0.3ngmL-1 to 1.4ngmL-1. Intra- and inter-day precisions (n=6) are in range of 4.5-8.3% and 5.8-10.7%, respectively. Recoveries are from 87.8% to 109.0%. The method, HFIP-induced salt free coacervate extraction with HPLC-UV, is suitable for detecting trace fluoroquinolones in milk. PMID- 29037668 TI - Measurement and characterization of external oil in the fried waxy maize starch granules using ATR-FTIR and XRD. AB - Concerns regarding increased dietary oil uptake have prompted efforts to investigate the oil absorption and distribution in fried starchy foods. In the present study, attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, together with a chloroform-methanol method, was used to analyze the external and internal oil contents in fried starchy samples. The micromorphology of fried starchy samples was further investigated using scanning electron microscope (SEM), polarized light microscope (PLM) and confocal laser scanning microscopy (CLSM). The results indicated that large amounts of oil were absorbed in or within waxy maize starch, but the majority of oil was located near the surface layer of the starch granules. After defatting, the internal oil was thoroughly removed, while a small amount of external oil remained. As evidenced by the changes of the crystalline characteristics with the help of X-ray diffraction (XRD), the interaction between starch and lipids on the surface was confirmed to form V-type complex compounds during frying at high moisture. PMID- 29037669 TI - Lipid composition and emulsifying properties of Camelina sativa seed lecithin. AB - There is no information on the chemical composition of camelina seed lecithin; therefore, the objective of this study was to investigate the chemical composition and emulsifying properties of lecithin recovered from camelina seed oil by water (WDCL) and enzymatic degumming (EDCL) using phospholipase A1 (PLA1). The lecithin obtained by both WDLC and EDLC was rich in phosphatidylinositol (PI), and contents were 37.8 and 25.2wt%, respectively. Lecithin recovered by enzymatic degumming contained more lysophospholipids compared to water degumming. The saturated fatty acid content of the EDCL was significantly higher than that of the WDCL. Emulsions stabilized using EDCL resulted in the highest stability when deionized water was used as the aqueous phase (original pH); however, at pH=7.5, emulsions stabilized using EDCL and WDCL were less stable compared to the emulsion stabilized with soy lecithin. Results showed that camelina seed lecithin is a promising alternative PI-rich emulsifier for various food applications. PMID- 29037670 TI - Isolation and characterization of collagen extracted from channel catfish (Ictalurus punctatus) skin. AB - Channel catfish skin is a by-product from catfish fillet production. Collagens were extracted from catfish skins by: (1) acid; (2) homogenization-aided; and (3) pepsin-aided extraction methods. Kinetic analysis of extraction was performed. SDS-PAGE was carried out for all collagens extracted under different conditions. Protein solubility, zeta potential, circular dichroism and gel strength of the collagen extracted by three methods were studied to determine optimal extraction conditions. Protein recovery rate from minced skins extracted with pH 2.4 HCl containing 23.6KU/g pepsin was the highest (64.19%). SDS-PAGE showed that collagens extracted with different methods had different proteins ratio patterns, even though the molecular mass of collagen subunits were similar, 123 and 113KDa for alpha1 and alpha2 chains, 226KDa for beta chain and 338.5KDa for gamma chain, respectively. Channel catfish skin collagens were typical type I collagens and could have applications in food, medical and cosmetic industries. PMID- 29037671 TI - Blue mussel (Mytilus edulis) protein hydrolysate promotes mouse mesenchymal stem cell differentiation into osteoblasts through up-regulation of bone morphogenetic protein. AB - Seafood provides a range of health benefits due to its high-protein level. In this study, the osteogenic effect of blue mussel (Mytilus edulis) protein hydrolysates (BMPH) on osteoblast differentiation were examined using mouse mesenchymal stem cells (MSCs). A preparation we called BMPH<1kDa which showed the highest osteogenic effect in MSCs, was prepared by peptic hydrolysis. BMPH<1kDa treatment stimulated osteoblast differentiation with alkaline phosphatase (ALP) induction, osteocalcin and type I collagen activity as well as calcium deposition. Osteoblast differentiation stimulated by BMPH<1kDa treatment was achieved by expression of osteogenic lineage markers, such as bone morphogenetic protein-2 (BMP-2), and downstream signal and transcription factors, including p Smad1/5/8, Dlx5, runt-related transcription factor 2 (Runx2), and osterix. BMPH<1kDa activated phosphorylation of mitogen-activated protein kinases. Adding noggin, a BMP antagonist, inhibited BMPH<1 kDa-induced ALP activity in MSCs. Taken together, our results show that BMPH<1kDa promoted osteoblast differentiation by activating BMP-2. PMID- 29037672 TI - Rapid and non-invasive detection and imaging of the hydrocolloid-injected prawns with low-field NMR and MRI. AB - Method development for monitoring economically motivated food adulteration is pivotal for preventing health problems caused by illegal food additives. In this work, low-field nuclear magnetic resonance (LF-NMR) spectroscopy and magnetic resonance imaging (MRI) was applied for the detection and mapping of adulterated prawns injected with different hydrocolloids including gelatin, carrageenan, agar, amorophophallus konjac and xanthan gum. The characteristic T2 fitting curves were obtained which can be used to tell apart adulterated prawns from normal ones. Furthermore, the benefit from high quality LF-MRI images showed the major accumulation site of the hydrocolloids injected in prawn. The location of these injections was mainly confined to well resolved accumulation in brain region and three following subtle sites: back, tail and claws. Different hydrocolloids can be successfully distinguished in adulterated prawns with principal component analysis. Therefore, rapid, non-invasive and low-cost LF-NMR technique offers a powerful tool for the identification of hydrocolloids adulteration in real-time. PMID- 29037673 TI - Effect of (-)-epigallocatechin gallate (EGCG) extracted from green tea in reducing the formation of acrylamide during the bread baking process. AB - This is the first study to investigate the extent of reduction in acrylamide formation during baking with the addition of (-)-epigallocatechin gallate (EGCG) extracted from green tea, and to determine whether EGCG influences the texture and colour attributes of bread, or interacts with other ingredients. EGCG powders were added to white bread formulations at the concentrations of 3.3, 6.6 and 9.9g.kg-1. The amount of acrylamide in the bread was analysed using liquid chromatography-mass spectrometry. EGCG addition significantly reduced the acrylamide formation by 37% compared to the control and decreased the moisture content of the bread by 6%. It did not affect its texture attribute, but increased the lightness and the yellowness and decreased the redness of bread crust (with contrasting results in crumb). It also decreased granule size and porosity. In conclusion, EGCG fortification is a feasible method to decrease acrylamide formation in baked bread. PMID- 29037674 TI - Structure of pyrodextrin in relation to its retrogradation properties. AB - Pyrodextrins were prepared by heating waxy maize starch at 170 degrees C and pH 3.0 for 0.5, 1, 2, 3 and 4h. Structural changes of pyrodextrins were determined by gel permeation chromatography and 1H NMR. Gelatinization and retrogradation of pyrodextrins were measured by differential scanning calorimetry. The water solubility of pyrodextrins increased from 48.9 to 99.4% as heating time increased from 0.5 to 4h. The molecular size, melting enthalpy of pyrodextrin, and the degree of retrogradation decreased as pyrodextrin solubility increased. The level of 1,6-anhydro-beta-d-glucopyranose increased from 2.6 to 4.0% as the heating time increased from 0.5 to 4h. The degree of branching (DB) of pyrodextrins was increased from 8.8 to 14.4%, and the average chain length (CL) reduced from 7.2 to 4.6. The increased level of new bonds and DB combined with reduced CL during the dextrinization explained the reduced extent of retrogradation of the pyrodextrin. PMID- 29037675 TI - Novel hydroxypyridinone derivatives containing an oxime ether moiety: Synthesis, inhibition on mushroom tyrosinase and application in anti-browning of fresh-cut apples. AB - A range of hydroxypyridinone derivatives were synthesized starting from kojic acid. Among them, 10 and 11 were found to possess the strongest inhibitory effect on monophenolase activity of mushroom tyrosinase, having IC50 values of 2.04 and 1.60MUM, respectively. The IC50 values of 10 and 11 for the inhibition of diphenolase activity of mushroom tyrosinase were determined as 13.89 and 7.99MUM, respectively. Investigation of the inhibitory mechanism of these two compounds indicated that the inhibition was reversible and of a competitive-uncompetitive mixed type. The KI and KIS values of 10 were determined to be 24.84 and 32.54MUM, respectively, and the corresponding values for 11 being 18.07 and 21.34MUM, respectively. The effect of 11 on the browning process of fresh-cut apples was evaluated by measuring the color change and browning index. The results indicated that 11 had a significant effect on controlling the browning of fresh-cut apple slices. PMID- 29037676 TI - Optimization of extraction yield and antioxidant properties of Brassica oleracea Convar Capitata Var L. leaf extracts. AB - Effects of extraction time and solvent polarity on antioxidant properties of Brassica oleracea leaves were optimized by response surface methodology using a central composite design. Five extraction times (12, 24, 36, 48 and 60h) and solvent polarities (dipole moment - hexane: 0.0, diethyl ether: 2.80, ethyl acetate: 4.40, methanol: 5.10 and water: 9.0D) were selected for optimization. Response surface analysis of data showed a significant increase (p<0.05) in extract yield and antioxidant potential, based on total phenolic acids, reducing abilities and free radical scavenging capacities, in response to an increase in extraction time and solvent polarity. The optimal response was obtained using relatively polar solvents (4.40-9.00D) and prolonged extraction times (50-60h). This suggests that most of the phytochemical constituents of B. oleracea leaves are polar and possess strong antioxidant potential. PMID- 29037677 TI - Thermal stability and gel quality of myofibrillar protein as affected by soy protein isolates subjected to an acidic pH and mild heating. AB - Thermal stability and gel quality of myofibrillar protein were evaluated with regard to the addition of native soy protein isolates (SPI) and SPI subjected to acidic pH and mild heating (modified SPI). Compared with the control, the addition of modified SPI increased the compression force of the protein gel and decreased water loss (P<0.05). Differential scanning calorimetry results showed that an addition of 0.75% native SPI decreased the first transition temperature (P<0.05), and addition of 0.5% and 0.75% modified SPI exhibited no appreciable changes on it (P>0.05), indicating that a higher concentration of modified SPI would not damage the protein thermal stability. Moreover, the addition of modified SPI enhanced hydrogen bonding and disulphide linkages. Atomic force microscopy analysis revealed that the addition of modified SPI decreased the roughness of the mixed myofibrillar protein gels. Overall, modified SPI has the potential to improve myofibrillar protein gel texture and water holding capacity. PMID- 29037678 TI - Optimization of rice amylose determination by NIR-spectroscopy using PLS chemometrics algorithms. AB - Determining amylose content in rice with near infrared (NIR) spectroscopy, associated with a suitable multivariate regression method, is both feasible and relevant for the rice business to enable Process Analytical Technology applications for this critical factor, but it has not been fully exploited. Due to it being time-consuming and prone to experimental errors, it is urgent to develop a low-cost, nondestructive and 'on-line' method able to provide high accuracy and reproducibility. Different rice varieties and specific chemometrics tools, such as partial least squares (PLS), interval-PLS, synergy interval-PLS and moving windows-PLS, were applied to develop an optimal regression model for rice amylose determination. The model performance was evaluated by the root mean square error of prediction (RMSEP) and the correlation coefficient (R). The high performance of the siPLS method (R=0.94; RMSEP=1.938; 8941-8194cm-1; 5592-5045cm 1; and 4683-4335cm-1) shows the feasibility of NIR technology for determination of the amylose with high accuracy. PMID- 29037679 TI - Development of spectrophotometric method for iron determination in fortified wheat and maize flours. AB - The determination of iron in fortified foods is mandatory by many global regulatory agencies. However, the spectroscopic techniques require elevated investments limiting their applicability especially in developing countries. Therefore, simple, viable and analytical methods with sufficient sensitivity can become an alternative. In this work, a sensitive, simple and viable spectrophotometry method to determine iron in wheat and maize flours was developed following a cloud point extraction (CPE) procedure. The analyte was first complexed with 2-(5-Bromine-2-pyridylazo)-5-diethylaminophenol (Br-PADAP) in the presence of the surfactant octylphenoxypolyethoxyethanol (Triton X-114). For the CPE optimization the variables: pH of the medium, stoichiometry of the complex, surfactant, and salt concentrations were evaluated. Linearity in the analytical blank was obtained by using the square root of absorbance (Abs) in order to adjust the residues of the curve. The precision was lower than 5% and the accuracy ranged from 97 to 101%. The limits of detection and quantification were 0.004MUgmL-1 and 0.01MUgmL-1, respectively. The method was applied to investigate the content of iron in 14 brands of fortified flours. The concentrations of iron varied from 0.435 to 3.62mg/100g and 0.570 to 3.15mg/100g in wheat and maize flour, respectively. The content of iron in all brands investigated in this study was approximately 10-fold lower than the value required by (ANVISA). The amount of iron in fortified foods was satisfactorily determined by using a simple, sensitive, and low cost spectrophotometric method. PMID- 29037680 TI - Structure characterisation of polysaccharides in vegetable "okra" and evaluation of hypoglycemic activity. AB - Okra is a widely accepted vegetable in subtropical and tropical regions due to the good palatability. However, the polysaccharide compositions remain unclear. In this work, the water extract of okra pod was prepared and the leading polysaccharide fraction was purified. The precise structural characteristics were identified. It was a polysaccharide "rhamnogalacturonan" as shown below, and the structure was different to previously reported rhamnogalacturonans. The hypoglycemic effect of rhamnogalacturonan was determined in vivo. By comparing with streptozotocin-induced diabetic mice group, the high-dose group showed decreased blood glucose level and glucose tolerance. The body weight of all groups were not significantly different. The results indicated that the rhamnogalacturonan was responsible for the hypoglycemic effect of okra. PMID- 29037681 TI - Improved analysis of anthocyanins and vitamin C in blue-purple potato cultivars. AB - Methods were optimized for extraction and quantification of anthocyanins (ACY) and vitamin C in potatoes. Acidified aqueous methanol (70%) was the optimal extraction solvent and freeze-drying significantly improved the extraction yield of ACY. The content of ACY varied widely in five potato cultivars from 0.42 to 3.18mg/g dry weight, with the latter being the highest value found in the Finnish cultivar 'Synkea Sakari'. Compared with dithiothreitol (DTT), tris(2 carboxyethyl) phosphine hydrochloride (TCEP) was more efficient in reducing dehydroascorbic acid (DHA) to ascorbic acid (AA) and for quantifying the content of total ascorbic acid (TAA). For raw potatoes, quantification of TAA after treatment with TCEP was more reliable than a direct analysis of AA, whereas AA can be analyzed directly in steam-cooked samples. The TAA contents in the three potato cultivars were around 0.30-0.35mg/g dry weight. The loss of AA in steam cooking was 24%. PMID- 29037682 TI - l-Lysine and l-arginine inhibit myosin aggregation and interact with acidic amino acid residues of myosin: The role in increasing myosin solubility. AB - The objective of this paper is to investigate the potential affecting mechanisms of l-lysine (Lys)/l-arginine (Arg) on myosin solubility. The results showed that both Lys and Arg increased the solubility of myosin at the examined pH values. Additionally, both Lys and Arg decreased the hydrodynamic size of myosin but increased the hydration capacity (HC), the surface aromatic hydrophobicity of myosin, the surface tension of the myosin solution and the absolute transfer free energy (TFE) of the major amino acids that constitute myosin. The results indicate that the properties of Lys or Arg that result in an inhibition of myosin aggregation and an interaction with hydrophobic amino acid residues may play important roles in increasing the myosin solubility. The results are attractive to the meat industry. PMID- 29037683 TI - Arsenic hyperaccumulation and speciation in the edible ink stain bolete (Cyanoboletus pulverulentus). AB - The edible ink stain bolete (Cyanoboletus pulverulentus) was found to hyperaccumulate arsenic. We analyzed 39 individual collections determined as C. pulverulentus, mostly from the Czech Republic. According to our results, concentrations of arsenic in C. pulverulentus fruit-bodies may reach 1300mgkg-1 dry weight. In most collections, data for total and bioavailable arsenic in underlying soils were collected but no significant correlation between the soil arsenic content and arsenic concentrations in the associated fruit-bodies was found. Within the fruit-bodies, we found the majority of arsenic accumulated in the hymenium. Besides occasional traces of methylarsonic acid (MA), the arsenic speciation in all mushroom samples consisted solely of dimethylarsinic acid (DMA) and no inorganic arsenic was detected. Because of the carcinogenic potential of DMA, C. pulverulentus should not be recommended as an edible mushroom and its consumption should be restricted. PMID- 29037684 TI - Chitosan delays ripening and ROS production in guava (Psidium guajava L.) fruit. AB - Guava is a typically tropical fruit highly perishable with a short shelf-life due to intense metabolic activity after harvested. In attempt to minimize the problems related to the postharvest, we evaluated the physiochemical characteristics and antioxidant system in guava fruits under chitosan coating at concentrations of 1%, 2%, and 3% stored at 25 degrees C during 96h. The chitosan suppressed the respiratory rate, fresh weight loss, firmness and skin color with delay in the degradation of chlorophyll. In the treatment with 2% and 3% of chitosan in the solid soluble content and ascorbic acid were reduced; retarded the loss of titratable acidity during 96h after treatment. These treatment induced significant decreases in the phenylalanine ammonia-lyase activity and significantly increases of peroxidase Activity. Our results suggest that chitosan effectively prolongs the quality attributes in guava fruits after harvesting due to increases in the antioxidant processes, delaying the ripening during room temperature of storage. PMID- 29037685 TI - Microencapsulation of Thai rice grass (O. Sativa cv. Khao Dawk Mali 105) extract incorporated to form bioactive carboxymethyl cellulose edible film. AB - Microencapsulation was investigated to enhance the stability of Thai rice grass extract. Microencapsulated powder (MP) was formed using total solid of extract solution and maltodextrin ratios of 1:4 (MP 1:4) and 1:9 (MP 1:9). The absence of an endothermic peak for both MPs confirmed all extract solutions were coated with maltodextrin. MP 1:9 had a lower total phenolic content (TPC) but was higher in antioxidant capacity than MP 1:4. Moreover, the TPC of the MPs slightly decreased (70.02-93.04%) during storage at 10, 30 and 70 degrees C for 30d. Comparatively, the TPC of the extract solution significantly decreased from 100% down to 20.8%, 11.2% and 8.6% at 10, 30 and 70 degrees C, respectively. Therefore, MP 1:9 incorporated with blended carboxymethyl cellulose film increased the water barrier and the TPC. This film can serve as a bioactive biodegradable packaging material to reduce plastic packaging in the food industry. PMID- 29037686 TI - Identification and biological activities of carotenoids from the freshwater alga Oedogonium intermedium. AB - The chemical and biological properties of carotenoids in the freshwater alga Oedogonium intermedium were investigated in this study. Carotenoids were extracted from the alga by dichloromethane and purified by saponification. The carotenoid content was determined both spectrometrically and by HPLC, the carotenoids identified by HPLC-PDA-APCI-IT-TOF-MS and the extracts analysed for several health-related bioactivities. The crude and saponified extracts contained 3,411.2+/-20.7 and 2,929.6+/-5.9ug carotenoids/g dry algal biomass, respectively. Seven major carotenoids were identified, namely neoxanthin, 9'-cis-neoxanthin, loroxanthin, violaxanthin, lutein, alpha-carotene and beta-carotene, which were present in similar amounts in the alga. Both the crude and saponified carotenoid extracts exhibited significant antioxidant activities as well as potent inhibitory effects against several metabolically important enzymes including alpha-amylase, alpha-glucosidase, pancreatic lipase and hyaluronidase, but they were poor inhibitors of angiotensin converting enzyme (ACE). Oedogonium could be an important new source of carotenoids, specifically loroxanthin, which is lacking in terrestrial plants. PMID- 29037687 TI - Enhanced dispersion stability and heavy metal ion adsorption capability of oxidized starch nanoparticles. AB - Starch nanoparticles (SNPs) have attracted much research interest recently due to their biodegradability and biocompatibility. However, practical utilization of SNPs is generally restricted due to their weak colloid stability and reduced functionality. In this work, SNPs were functionally modified by sodium hypochlorite (1-5% active chlorine based on dry SNPs weight). The degree of modification, particle size, stability, and adsorption characteristics of the SNPs were systematically investigated. The results showed that as the active chlorine concentration increased, the carbonyl and carboxyl contents increased to 0.150% and 0.855%, respectively. Compared with SNPs, the zeta potential value of SNPs modified with 5% active chlorine increased significantly (p<0.05) from -13 to -31mV and the dispersion stability of modified SNPs was remarkably improved. Moreover, modified SNPs exhibited high adsorption capacities for Pb2+ and Cu2+, suggesting that they could be employed as a novel absorbent for removal of heavy metal ions. PMID- 29037688 TI - Production of phytotherapeutics from broccoli juice by integrated membrane processes. AB - An integrated membrane process for the recovery and concentration of phytotherapeutics in broccoli juice was investigated to develop a natural product that could be of interest for food and/or pharmaceutical industry. Following a pretreatment step to remove suspended solids, the juice was ultrafiltered through a 50kDa MWCO polyethersulfone membrane. The permeate stream was further concentrated by osmotic distillation up to 42.6 degrees Brix. During ultrafiltration, a complete recovery of sulforaphane, malic acid and citric acid was achieved, where total phenolic content and ascorbic acid were recovered at a ratio of 94.5 and 92.4%, respectively. All the bioactive compounds identified in broccoli juice was well preserved during subsequent 6-fold concentration by osmotic distillation. No significant difference was observed in total antioxidant activity of the juice throughout the operation. The proposed integrated membrane process has shown promising potential to produce a natural concentrate enriched in phytotherapeutics of the broccoli juice. PMID- 29037689 TI - Intra-regional classification of grape seeds produced in Mendoza province (Argentina) by multi-elemental analysis and chemometrics tools. AB - The feasibility of the application of chemometric techniques associated with multi-element analysis for the classification of grape seeds according to their provenance vineyard soil was investigated. Grape seed samples from different localities of Mendoza province (Argentina) were evaluated. Inductively coupled plasma mass spectrometry (ICP-MS) was used for the determination of twenty-nine elements (Ag, As, Ce, Co, Cs, Cu, Eu, Fe, Ga, Gd, La, Lu, Mn, Mo, Nb, Nd, Ni, Pr, Rb, Sm, Te, Ti, Tl, Tm, U, V, Y, Zn and Zr). Once the analytical data were collected, supervised pattern recognition techniques such as linear discriminant analysis (LDA), partial least square discriminant analysis (PLS-DA), k-nearest neighbors (k-NN), support vector machine (SVM) and Random Forest (RF) were applied to construct classification/discrimination rules. The results indicated that nonlinear methods, RF and SVM, perform best with up to 98% and 93% accuracy rate, respectively, and therefore are excellent tools for classification of grapes. PMID- 29037691 TI - Ageing and retail display time in raw beef odour according to the degree of lipid oxidation. AB - This study aims to assess the changes in beef aroma over time when steaks from pre-aged knuckles are stored in retail display under high oxygen conditions for 15 or 22days in vacuum conditions. Odorous volatile compounds were analysed by solid-phase microextraction/gas chromatography-mass spectrometry. Results were grouped as low, medium and high oxidative groups according to thiobarbituric acid reactive substances values after 9days of display. The intensity of off-odours in the raw meat increased with ageing and display time and oxidative groups. Based on correlations between the variables and regressions of the compounds through display, eight compounds were proposed as odour shelf-life markers. Among them, five were most sensitive and precise in all oxidative groups: 1-hexanol in meat aged for 15days, ethyl- octanoate and 2-pentylfuran in meat aged for 22days, and pentanoic and hexanoic acids in the two studied ageing times. PMID- 29037690 TI - Multi-response modeling of reaction-diffusion to explain alpha-galactoside behavior during the soaking-cooking process in cowpea. AB - A modelling approach was developed to better understand the behavior of the flatulence-causing oligosaccharides in cowpea seeds during isothermal water soaking-cooking process. Concentrations of verbascose, stachyose and raffinose were measured both in the seed and in the soaking water during the process (T=30, 60 and 95 degrees C). A reaction-diffusion model was built for the three considered alpha-galactosides both in the seed and in the soaking water, together with a model of water transport in the seed. The model reproduced coupled reaction-diffusion of alpha-galactosides during the soaking-cooking process with a good fit. Produced, diffused and degraded alpha-galactoside fractions were identified by performing a mass balance. During soaking at 30 degrees C, degradation predominated (maximum found for raffinose degradation rate constant of 3.22*10-4s-1) whereas diffusion predominated at higher temperatures (95 degrees C). PMID- 29037692 TI - Evaluation of sn-2 fatty acid composition in commercial infant formulas on the Chinese market: A comparative study based on fat source and stage. AB - The sn-2 fatty acid composition of 180 commercial infant, follow-on and growing up formulas with three fat sources (plant oil, cows' milk and goats' milk) was investigated and compared with mature human milk (MHM). Sn-2 fatty acids in formulas were mostly dependent on fat source and stage. Compared with MHM, all types of formulas contained lower levels of palmitic acid (PA), saturated fatty acid and long-chain polyunsaturated fatty acids (LC-PUFA), and higher levels of oleic acid (OA), linoleic acid (LA) and alpha-linolenic acid (LNA) at the sn-2 position. Even some formulas were supplemented with 1,3-dioleoyl-2 palmitoylglycerol, the proportions of relative PA at the sn-2 position in formulas were much lower than that in MHM. Moreover, formulas had higher proportions of relative OA, LA and LNA, and lower LC-PUFAs at the sn-2 position. This study indicated that there were significant differences in the positional distribution of fatty acids between formulas and MHM. PMID- 29037693 TI - Conducting polymer modified screen-printed carbon electrode coupled with magnetic solid phase microextraction for determination of caffeine. AB - In the current study, we introduce magnetic solid phase microextraction coupled with electrochemical detection of caffeine. A commercially available disposable screen-printed carbon electrodes modified with poly Alizarin Red S are employed as electrochemical sensors in the detection stage. However, the suitability of magnetic solid phase microextraction for electroanalytical methods such as square wave voltammetry has not been declared. With our optimised conditions in hand, the system response was linearly proportional to the concentration of caffeine in the range of 0.5-20uM with a correlation coefficient of about 0.9987. The detection limit of the sensing system was found to be 0.05uM (a signal-to-noise ratio of 3). At the end of the study, the suitability of this new procedure for the analysis of energy drink, soft drink, and chocolate milk samples was demonstrated. PMID- 29037694 TI - 1H NMR combined with chemometrics for the rapid detection of adulteration in camellia oils. AB - Proton nuclear magnetic resonance (1H NMR) and chemometrics were employed to detect the adulteration of camellia oil (CAO) with 3 different cheap vegetable oils. With the intensity of 15 selected 1H NMR signals as input variables, principal component analysis (PCA) showed good group clustering results for pure and nonpure CAO, but unsatisfied identification accuracy for the adulterated oil types, indicating relatively small difference among those oils. Whereas these difference could be revealed by orthogonal projection to latent structures discriminant analysis (OPLS-DA), with identification accuracy higher than 90%. Partial least squares (PLS) was further applied for the prediction of adulteration level in CAO. With less than 6 variables screened out by variable importance in the projection (VIP) scores as potential key markers, the developed PLS models showed better accuracy. The prediction results for 10 hold-out samples also confirmed that this method was accurate and fast for the detection of CAO adulteration. PMID- 29037695 TI - Monitoring chemical changes during food sterilisation using ultrahigh resolution mass spectrometry. AB - Sterilised food products undergo chemical changes during processing that ultimately determine the product quality. To provide detailed information on the chemistry of each stage of a pet-food sterilisation process, a laboratory-scale system was developed, which allowed sampling under the high temperatures and pressures associated with sterilisation. Products from the laboratory-scale system were representative of the factory process. Sample extracts were analysed by Fourier Transform-Ion Cyclotron Resonance-Mass Spectrometry (FT-ICR-MS), which delivered the molecular formulae and ion intensities of the compounds present. Data were examined to determine the coverage of this method, the degree of chemical change occurring during pet food thermal processing, and the level of identification possible with FT-ICR-MS. Data visualisation and statistical analysis identified significant chemical changes in pet food as a result of processing, and allowed tentative identification of the compounds involved. Insights generated using FT-ICR-MS analysis can be confirmed and further explored using conventional, targeted analyses. PMID- 29037696 TI - Insights into the multi-scale structure and digestibility of heat-moisture treated rice starch. AB - The digestibility and structural changes of rice starch induced by heat-moisture treatment (HMT) were investigated, and the relationships among the moisture content-starch structure-starch digestibility were revealed. HMT could simultaneously disorder and reassemble the rice starch molecules across multi scale lengths and convert some fractions of rapidly-digestible starch (RDS) into slowly-digestible starch (SDS) and resistant starch (RS). In particular, the HMT rice starch with less than 30% moisture content showed a higher SDS+RS content (25.0%). During HMT, SDS and RS were preferably formed by the degraded starch molecules with Mw between 4*105 and 4*106g/mol, single helices and amylose-lipids complexes that were formed by degraded starch chains with higher thermal stability and crystalline lamellae with greater thicknesses. Thus, our research suggests a potential approach using HMT to control the digestion of starch products with desired digestibility. PMID- 29037697 TI - gamma-PGA and MTGase improve the formation of epsilon-(gamma-glutamyl) lysine cross-links within hairtail (Trichiurus haumela) surimi protein. AB - The present study investigated the mechanism of epsilon-(gamma-glutamyl) lysine cross-links within hairtail (Trichiurus haumela) surimi protein via gamma polyglutamic acid (gamma-PGA) and MTGase. The results indicated that the addition of MTGase and gamma-PGA markedly improved the gelation properties of hairtail surimi protein, including its maximum breaking force and deformation, water holding capacity and gel strength. The maximum improvements were achieved by adding 0.5units MTGase/g meat paste in combination with 0.06% gamma-PGA. SDS-PAGE showed that the band intensity of cross-linked proteins increased, whereas that of myosin heavy chain decreased after treatments. Further scanning electron microscopy (SEM) analysis showed the formation of a denser gel matrix, which was caused by much stronger and more inter- and intra-molecular cross-linking of proteins, via MTGase catalysing epsilon-(gamma-glutamyl) lysine cross-links formed between lysine residues in the gel protein and glutamic residues in the hydrolytic gamma-PGA. The results provide reliable guidance for the improvement of hairtail surimi protein gelation properties. PMID- 29037698 TI - Rapid and sensitive detection of free fatty acids in edible oils based on chemical derivatization coupled with electrospray ionization tandem mass spectrometry. AB - In this study, a strategy based on chemical derivatization coupled with electrospray ionizationtandem quadrupole mass spectrometry (ESI-MS/MS) for rapid and sensitive detection of FFAs in edible oils was developed. A derivative reagent (N,N-diethyl-1,2-ethanediamine, DEEA) was employed to selectively label carboxyl groups of FFAs to form an amino compound with a tertiary amino group. The DEEA derivative products could lose a characteristic neutral loss fragment of 73Da in collision-induced dissociation (CID), which enabled to discriminate and analyze the DEEA derived FFAs with neutral loss scan (NLS 73Da)under the positive ion mode of mass spectrometry. The assay was linear over the concentration range 0.5-200nmol/L with satisfactory correlation coefficients (R2>=0.9942), whilst the limit of detection and quantitation were 0.1-0.3nmol/L and 0.3-1.0nmol/L, respectively. Finally, the established method was applied to determine dynamic FFA formation in seven types of edible oils subjected to a microwave heating treatment test. PMID- 29037699 TI - Determination of hydroxytyrosol produced by winemaking yeasts during alcoholic fermentation using a validated UHPLC-HRMS method. AB - Hydroxytyrosol (HT) is a phenolic compound of recognized bioactivity that has been described in wines but little is known about its origin. This work demonstrates that yeast involved in wine making, i.e. Saccharomyces cerevisiae strains and the non-Saccharomyces Torulaspora delbrueckii, can synthesise HT, as this compound was identified in the intracellular media of three strains by means of a developed and validated UHPLC-HRMS method with LOQ and LOD of 0.108 and 0.035ngmL-1 respectively. Controlled fermentations were performed with different varieties of grapes (Corredera, Moscatel, Chardonnay, Palomino fino, Sauvignon Blanc, Vijiriega, and Tempranillo) and synthetic must. The Saccharomyces cerevisiae strain QA23 was the most efficient producer of HT from tested yeasts. On the other hand, the grape variety influences HT wine concentrations. Furthermore, the maximum concentration of HT is reached between the fourth and sixth day of fermentation. This work reveals that yeasts have a great potential for the production of HT. PMID- 29037700 TI - Effect of methyl jasmonate on the aroma of Sangiovese grapes and wines. AB - Methyl jasmonate (MeJA) was applied in a vineyard on leaves and grape clusters of cv Sangiovese to test its ability to stimulate the production of aromas and identify the main genes involved in the biosynthetic pathways switched on by the elicitor. MeJA application led to a delay in grape technological maturity and a significant increase in the concentration of several berry aroma classes (about twice the total aroma: from around 3 to 6MUg/g of berry). Of these, monoterpenes showed the most significant increase. An analysis of the expression of terpenoid biosynthesis genes confirmed that the MeJA application activated the related biosynthetic pathway. The expression of all the TPS genes analyzedwas higher in samples treated with MeJA. Also the wines produced by microvinification of Sangiovese treated and untreated grapes showed a rise in the aroma concentration as in berries, with an important impact on longevity and sensorial characters of wines. PMID- 29037701 TI - Impact of industrial hammer mill rotor speed on extraction efficiency and quality of extra virgin olive oil. AB - Crushing is a key step during olive oil extraction. Among commercial crushers, the hammer mill is the most widely used due to its robustness and high throughput. In the present work, the impact of hammer mill rotor speed on extraction yield and overall quality of super-high-density Arbosana olive oils were assessed in an industrial facility. Our results show that increasing the rotor speed from 2400rpm to 3600rpm led to a rise in oil yield of 1.2%, while conserving quality parameters. Sensory analysis showed more pungency with increased rotation speed, while others attributes were unaffected. Volatile compounds showed little variation with the differences in crusher speed; however, total phenols content, two relevant secoiridoids, and triterpenoids levels increased with rotor speed. Hammer mill rotor speed is a processing variable that can be tuned to increase the extraction efficiency and modulate the chemical composition of extra virgin olive oil. PMID- 29037702 TI - Impact of functional properties and release kinetics on antioxidant activity of biopolymer active films and coatings. AB - This work deals with the study of the release kinetics of some natural antioxidants (ferulic acid, caffeic acid and tyrosol) from chitosan-fish gelatin edible films immersed ethanol at 96%, as well as the kinetics of their antioxidant activity using the DPPH assay. The aim was to determine how film functional properties influence the release kinetic and antioxidant activity. The addition of antioxidants to chitosan-fish gelatin matrix decreased the water vapour permeability by more than 30%. The tensile strength (TS) increased up to 50% after the incorporation of antioxidants. Some molecular interactions between polymer chains and antioxidants were confirmed by FTIR where spectra displayed a shift of the amide-III peak. Films containing caffeic acid or a caffeic-ferulic acid mixture exhibited the highest radical scavenging activity, leading to a 90% antioxidant activity at equilibrium but the release rate controlled the efficacy of the system. PMID- 29037703 TI - Effects of moisture and temperature during grain storage on the functional properties and isoflavone profile of soy protein concentrate. AB - The objective of this study was evaluate the effects of moisture and temperature during grain storage on the functional properties and isoflavone profile of soy protein concentrate. The protein concentrate was extracted from soybeans on the first day of storage and after 12months of storage, at 12 and 15% moisture and at temperatures of 11, 18, 25, and 32 degrees C. The protein concentrate obtained from grains stored at 32 degrees C showed decreased extraction yield (51.6% with 15% of moisture) and protein solubility (24.8% with 15% of moisture) with increased emulsifying capacity (52.2% with 12% of moisture) and foam formation, compared with sample obtained at the start of the storage period. The isoflavone profile showed a decrease in the concentrations of glycosylated, malonyl, and acetyl isoflavones and a corresponding increase in the concentrations of aglycone isoflavones, with the magnitude of these changes increasing with increasing storage temperature and moisture content. PMID- 29037704 TI - Comparison of the effect of chemical composition of anthocyanin-rich plant extracts on colon cancer cell proliferation and their potential mechanism of action using in vitro, in silico, and biochemical assays. AB - The objective was to compare the anti-proliferative effect of anthocyanin-rich plant extracts on human colon cancer cells and determine their mechanism of action. Eleven extracts were tested: red (RG) and purple grape, purple sweet potato, purple carrot, black and purple bean, black lentil (BL), black peanut, sorghum (SH), black rice, and blue wheat. HCT-116 and HT-29 inhibition correlated with total phenolics (r=0.87 and 0.77, respectively), delphinidin-3-O-glucoside concentration with HT-29 inhibition (r=0.69). The concentration inhibition fifty (IC50) for BL, SH, RG on HT-29 and HCT-116 cell proliferation ranged 0.9 2.0mg/mL. Extracts decreased expression of anti-apoptotic proteins (survivin, cIAP-2, XIAP), induced apoptosis, and arrested cells in G1. Anthocyanins exhibited tyrosine kinase inhibitory potential in silico and biochemically; cyanidin-3-O-glucoside had one of the highest binding affinities with all kinases, especially ABL1 (-8.5kcal/mol). Cyanidin-3-O-glucoside and delphinidin-3 O-glucoside inhibited EGFR (IC50=0.10 and 2.37uM, respectively). Cyanidin-3-O glucoside was the most potent anthocyanin on kinase inhibition. PMID- 29037705 TI - Stabilization of alpha-lipoic acid by complex formation with octenylsuccinylated high amylose starch. AB - The thermal and oxidative stability of alpha-lipoic acid (ALA) in aqueous dispersions containing beta-cyclodextrin (CD), native high amylose (HA) and octenylsuccinylated high amylose (OS) starches (0.1% ALA and 1.0% CD or starch solids) were compared. Both native and modified starches increased the stability of ALA against thermal degradation and oxidation at higher degrees than CD. The OS was more effective in stabilizing ALA than HA. The ALA loss in the dispersions occurred mainly in the supernatant, suggesting that the complex formation of ALA with amylose played a key role in the stabilization. In an in vitro digestion test, the release of ALA from OS dispersion was less than that of HA dispersion, indicating that ALA complexed with OS amylose was most stable against digestion. The octenylsuccinylated high amylose starch was an effective protecting agent for ALA in aqueous media, as well as a delivery carrier for ALA in digestive tract. PMID- 29037706 TI - Lutein-enriched emulsion-based delivery systems: Influence of emulsifiers and antioxidants on physical and chemical stability. AB - The impact of emulsifier type (quillaja saponin, Tween 80, whey protein and casein) and antioxidant type (EDTA, ascorbic acid, catechin, alpha tocopherol, ascorbic acid palmitate) on the physical and chemical stability of lutein fortified emulsions was investigated. Quillaja saponin produced emulsions with the best overall stability to droplet aggregation, creaming, and colour fading during storage at 45 degrees C for ten days. The impact of antioxidant type on the stability of lutein-fortified emulsions prepared using quillaja saponin was therefore investigated further. The extent of droplet aggregation and creaming was largely independent of antioxidant type. Surprisingly, most of the antioxidants promoted lutein degradation. Only ascorbic acid showed some ability to inhibit colour fading during storage, although EDTA had some inhibitory effects in the early stages of storage. This study suggests that lutein-enriched emulsions prepared using quillaja saponin as an emulsifier and ascorbic acid as an antioxidant may be the most suitable as delivery systems. PMID- 29037707 TI - Predominant yeasts in Chinese traditional sourdough and their influence on aroma formation in Chinese steamed bread. AB - A total of 105 yeast isolates was obtained from 15 sourdough samples collected from different regions in China and subjected to random amplified polymorphic DNA (RAPD) analysis. Six species were identified including Pichia membranifaciens, which has not previously been reported in Chinese sourdoughs. Different species of yeast were used in single-culture fermentation to make Chinese steamed bread (CSB). The volatiles of the CSB were captured by solid-phase microextraction method, separated and identified by gas chromatography-mass spectrometry. In total, 41 volatile compounds were found in all the steamed breads. All CSBs showed a similar volatile profile; however, significant differences in the quantity of some volatile compounds were seen among the CSB fermented by different yeast species. A partial least squares discriminant analysis showed that the CSBs could be separated by their characteristic volatile profiles. The study suggested that the aromatic properties of CSB are determined by the yeast used. PMID- 29037708 TI - The effects of edible chitosan-based coatings on flavor quality of raw grass carp (Ctenopharyngodon idellus) fillets during refrigerated storage. AB - This study investigated the effects of chitosan-based coatings on flavor retention of refrigerated grass carp fillets by using various indicators: free amino acids (FAA), nucleotides, trimethylamine (TMA), volatile profile, sensory quality, and electronic nose analysis. The results indicated that chitosan-based coatings contributed to the significant reduction of off-flavor compounds, such as TMA, hypoxanthine (Hx) and histidine, and accumulation of inosine monophosphate (IMP) and umami-associated FAA. GC-MS analysis showed 23 volatile organic compounds, including many C5-C9 aldehydes and alcohols in the fresh fillets. The coating treatments, especially chitosan-clove bud essential oil composite coatings, sharply reduced the relative content of off-odor volatiles, such as hexanal, octanal and 1-octen-3-ol. According to the results of the sensory evaluation and electronic nose analyses, chitosan coating combined with glycerol monolaurate and clove bud essential oil was a promising method to improve the edibility of grass carp fillets by maintaining flavor quality during refrigerated storage. PMID- 29037709 TI - In vitro digestion and physicochemical characteristics of corn starch mixed with amino acid modified by low pressure treatment. AB - The digestibility and molecular structure of corn starch mixed with amino acid modified by low-pressure treatment (LPT) was investigated. Amino acid induced a significant increase in the slowly digestible starch (SDS) and decrease in the rapidly digestible starch (RDS) after LPT. The reason is the formation of ester bond between the molecular chains of amino acid and starch. Low pressure treatment altered greatly the morphology of corn starch mixed with or without amino acid. After LPT, less ordered Maltese and more granule fragments were observed for starch-amino acid complex. An increase in size distribution was obvious after LPT and the size distribution curves provided from a new variety. We found that higher enthalpy and relative crystallinity of the starch-amino acid complex were associated with a higher SDS content. It can be inferred that LPT had a greater impact on the digestion and structural characterization of corn starch mixed with amino acids. PMID- 29037710 TI - Cooking quality properties and free and bound phenolics content of brown, black, and red rice grains stored at different temperatures for six months. AB - The changes in cooking quality and phenolic composition of whole black and red rice grains stored during six months at different temperatures were evaluated. Brown rice with known cooking quality properties and low phenolic levels was used for purposes comparison. All rice genotypes were stored at 13% moisture content at temperatures of 16, 24, 32, and 40 degrees C. Cooking time, hardness, free and bound phenolics, anthocyanins, proanthocyanidins, and free radical scavenging capacity were analysed. The traditional rice with brown pericarp exhibited an increase in cooking time and free phenolics content, while rice with black pericarp exhibited a reduction in cooking time after six months of storage at the highest studied temperature of 40 degrees C. There as increases in ferulic acid levels occurred as a function of storage temperature. Red pericarp rice grains showed decreased antioxidant capacity against ABTS radical for the soluble phenolic fraction with increased time and storage temperature. PMID- 29037711 TI - Characterization of carotenoids and vitamin E in R. rugosa and R. canina: Comparative analysis. AB - The hips of Rosa species have gained more attention in recent years due to their high contents of antioxidant compounds. This study was designed to compare rosehips of the two roses species Rosa rugosa and Rosa canina, including different products, on carotenoid contents, including phytoene and phytofluene, as well as vitamin E. The investigation allowed the identification and quantification of types of (Z)-isomers of lycopene and rubixanthin in both rosehips and focused also on isomerisation of both carotenoids. The carotenoid identification and quantification were done using HPLC-DAD and LC-MS/MS. The statistical analysis revealed significant differences (P<0.05) in carotenoid contents and (P<0.001) in vitamin E contents between different rosehips species. The HPLC analysis showed that carotenoid contents varied between rosehips species. The isomerisation of (all-E)-rubixanthin and (all-E)-lycopene using iodine-catalysed photoisomerisation showed that the (5'Z)-isomer gazaniaxanthin is the main (Z)-isomer of rubixanthin and the (13Z)-isomer is the main (Z)-isomer of lycopene. PMID- 29037712 TI - Straightforward analytical method to determine opium alkaloids in poppy seeds and bakery products. AB - A straightforward method to determine the content of six opium alkaloids (morphine, codeine, thebaine, noscapine, papaverine and narceine) in poppy seeds and bakery products was developed and validated down to a limit of quantification (LOQ) of 0.1mg/kg. The method was based on extraction with acetonitrile/water/formic acid, ten-fold dilution and analysis by LC-MS/MS using a pH 10 carbonate buffer. The method was applied for the analysis of 41 samples collected in 2015 in the Netherlands and Germany. All samples contained morphine ranging from 0.2 to 240mg/kg. The levels of codeine and thebaine ranged from below LOQ to 348mg/kg and from below LOQ to 106mg/kg, respectively. Sixty percent of the samples exceeded the guidance reference value of 4mg/kg of morphine set by BfR in Germany, whereas 25% of the samples did not comply with the limits set for morphine, codeine, thebaine and noscapine by Hungarian legislation. PMID- 29037713 TI - Structural analysis of the alpha-d-glucan produced by the sourdough isolate Lactobacillus brevis E25. AB - Cereal-associated Lactic Acid Bacteria (LAB) are well known for homopolymeric exopolysaccharide (EPS) production. Herein, the structure of an EPS isolated from sourdough isolate Lactobacillus brevis E25 was determined. A modified BHI medium was used for production of EPS-E25 in order to eliminate potential contaminants. Analysis of sugar monomers in EPS revealed that glucose was the only sugar present. Structural characterisation of EPS by NMR and methylation analysis revealed that E25 produced a highly branched alpha-glucan with (alpha1->3) and (alpha1->6) glycosidic linkages, and was similar in structure to a previously reported EPS from Lactobacillus reuteri 180. The 1H and 13C NMR data were contrasted with newly recorded data for known polysaccharides (alternan, commercial dextran) which also contain alpha-(1,3,6)Glc branch points. It was found in both E25 EPS and alternan that NMR parameters could be used to distinguish glucose residues that had the same substitution pattern but occupied different positions in the structure. PMID- 29037714 TI - Optimized method for the quantification of pyruvic acid in onions by microplate reader and confirmation by high resolution mass spectra. AB - The present study describes the rapid microplate method to determine pyruvic acid content in different varieties of onions. Onion juice was treated with 2,4 dinitrophenylhydrazine to obtain hydrazone, which was further treated with potassium hydroxide to get stable colored complex. The stability of potassium complex was enhanced up to two hours and the structures of hydrazones were confirmed by LC-MS for the first time. The developed method was optimized by testing different bases, acids with varying concentrations of dinitrophenyl hydrazine to get stable color and results were comparable to developed method. Repeatability and precision showed <9% relative standard deviation. Moreover, sweet onion juice was stored for four weeks at different temperatures for the stability; the pyruvate remained stable at all temperatures except at 25 degrees C. Thus, the developed method has good potential to determine of pungency in large number of onions in a short time using minimal amount of reagents. PMID- 29037715 TI - Enhanced CaSO4-induced gelation properties of soy protein isolate emulsion by pre aggregation. AB - The effects of CaSO4-induced pre-aggregation on the rheological and structural properties of soy protein isolate (SPI) emulsion gels were investigated. As the Ca2+ concentration during pre-aggregation increased (from 0mM to 7.5mM), the elastic modulus of the gels showed substantial increase, indicating stiffer gel structures. Large-deformation rheology suggested stronger but more brittle networks formed at higher Ca2+ concentration during pre-aggregation. However, when the pre-aggregated Ca2+ concentration reached 10mM, the corresponding gel became weaker. Water-holding capacity (WHC) of the gels were significantly improved via the pre-aggregation process. The differences in rheological properties and WHC among the gels were consistent with the variation in their microstructures. Pre-aggregation helped to form denser and more uniform structures with thicker strands, whereas over aggregation made the gel network coarser. PMID- 29037716 TI - Chemical composition, nutritional value and antioxidant properties of Mediterranean okra genotypes in relation to harvest stage. AB - The aim of the present study was to determine the effect of fruit size on nutritional value, chemical composition and antioxidant properties of Mediterranean okra genotypes. For this purpose, pods from four okra cultivars and local landraces commonly cultivated in Greece, as well as pods from four commercial cultivars from North America were collected at two sizes (3-5 and>7cm). Significant differences were observed between the studied genotypes for both nutritional value and chemical composition parameters. Small fruit had a higher nutritional value, whereas chemical composition differed in a genotype dependent manner with most of the studied cultivars showing better results when harvested in small size. In conclusion, fruit size has a genotype dependent impact on chemical composition and nutritional value of okra pods and the common practice of harvesting okra fruit while they still have a small size helps to increase nutritional value for most of the studied genotypes. PMID- 29037717 TI - Environmentally friendly procedure based on VA-MSPD for the determination of booster biocides in fish tissue. AB - Booster biocides have been widely applied to ships and other submerged structures. These compounds can be released into the marine environment as the result of vessel hull leaching and may remain in different environmental compartments. This study aimed at introducing an environmentally friendly procedure for the extraction of irgarol and diuron from fish samples by vortex assisted matrix solid phase dispersion (VA-MSPD) with detection by liquid chromatography tandem mass spectrometry. Different types of solid supports and solvents were evaluated. The best results were found when 0.5g mussel shell, 0.5g sodium sulfate and 5mL ethanol were used. Analytical recoveries ranged from 81 to 110%, with RSD below 10%, whereas the matrix effect was between -17 and 1% (for all samples under study). LOQ values of irgarol and diuron were 5 and 50ngg-1, respectively. The method under investigation proved to be a promising alternative to controlling contamination of fish by booster biocides, with low consumption of biodegradable reagents. PMID- 29037718 TI - Co-fermentation of red grapes and white pomace: A natural and economical process to modulate hybrid wine composition. AB - The impact of co-fermenting white grape pomace (WP) and red grape pomace (RP) on the composition of interspecific hybrid wine was studied using the Vitis sp. 'Frontenac' and 'Vidal'. The proanthocyanidin and anthocyanin content of the resulting wines were analysed by HPLC-fluorescence and UPLC-MS/MS, respectively. The CIELAB parameters and volatile compounds were analysed using spectrophotometry-UV and GC-MS-SPME, respectively. The WP addition increased the concentration of monomeric and oligomeric flavan-3-ols, and terpenes in the wines. The manipulation of the WP/RP ratio efficiently modulated the anthocyanin profile of the wines, resulting in faded red colour, a desirable achievement in hybrid red wine, which is usually perceived as too dark. An appropriate ratio (30% RP/6% WP) improved the colour stability of the wines without a significant impact on wine colour. Addition of WP proved to be a suitable tool to modulate the colour, the phenolic and volatile composition of interspecific hybrid wine. PMID- 29037719 TI - Low-current & high-frequency electrical stunning increased oxidative stress, lipid peroxidation, and gene transcription of the mitogen-activated protein kinase/nuclear factor-erythroid 2-related factor 2/antioxidant responsive element (MAPK/Nrf2/ARE) signaling pathway in breast muscle of broilers. AB - Mechanism of electrical stunning (ES) methods on lipid peroxidation and antioxidant protection were studied by determining meat color, serum variables, antioxidant-related enzyme activities, gene expressions of mitogen-activated protein kinases (MAPKs), nuclear factor-erythroid 2-related factor 2 (Nrf2), glutathione S-transferases (GSTs), and superoxide dismutases (SODs). Broilers were sacrificed without stunning, or after ES with 65V, 86mA, 1000Hz (E65V) or 150V, 130mA, 60Hz (E150V). Serum cortisol and uric acid, muscular malondialdehyde and mRNA levels of MAPKs, Nrf2, GSTA3, GSTT1 and SOD2 were increased, whereas, serum free triiodothyronine, free thyroxine, muscular GST1d activity were decreased in E65V compared with E150V. Overall, the serum uric acid and transcription of the MAPK/Nrf2/ARE (antioxidant responsive element) signaling pathway were elevated, but didn't overcome the oxidative stress stimulated by low current & high-frequency ES, leading to aggravated lipid peroxidation at 1d and 9d postmortem in breast muscle compared with high-current & low-frequency ES. PMID- 29037720 TI - Mass spectrometry-based phytochemical screening for hypoglycemic activity of Fagioli di Sarconi beans (Phaseolus vulgaris L.). AB - The present study deals with the evaluation of antidiabetic activities of Fagioli di Sarconi beans (Phaseolus vulgaris), including 21 ecotypes protected by the European Union with the mark PGI (i.e., Protected Geographical Indication), and cultivated in Basilicata (southern Italy). For this purpose, alpha-glucosidase and alpha-amylase assays were assessed; among all bean ecotypes, the tight green seed colour of Verdolino extracts exhibited the highest alpha-glucosidase and alpha-amylase inhibitory activity with IC50=1.1+/-0.1MUg/ml and IC50=19.3+/ 1.1MUg/ml, respectively. Phytochemical compound screening of all Fagioli di Sarconi beans performed by flow injection-electrospray ionization-ultrahigh resolution mass spectrometry (uHRMS) and based on the calculation of elemental formulas from accurate m/z values, was helpful to annotate specific compounds, such as alkaloids, saponins, flavonoids, and terpenoids, which are most likely responsible for their biological activity. PMID- 29037721 TI - Thermodynamic and kinetic analyses of curcumin and bovine serum albumin binding. AB - Bovine serum albumin (BSA)/curcumin binding and dye photodegradation stability were evaluated. BSA/curcumin complex showed 1:1 stoichiometry, but the thermodynamic binding parameters depended on the technique used and BSA conformation. The binding constant was of the order of 105L.mol-1 by fluorescence and microcalorimetric, and 103 and 104L.mol-1 by surface plasmon resonance (steady-state equilibrium and kinetic experiments, respectively). For native BSA/curcumin, fluorescence indicated an enthalpic and entropic driven process based on the standard enthalpy change (DeltaH?F=-8.67kJ.mol-1), while microcalorimetry showed an entropic driven binding process (DeltaH?cal=29.11kJ.mol-1). For the unfolded BSA/curcumin complex, it was found thatp DeltaH?F=-16.12kJ.mol-1 and DeltaH?cal=-42.63kJ.mol-1. BSA (mainly native) increased the curcumin photodegradation stability. This work proved the importance of using different techniques to characterize the protein-ligand binding. PMID- 29037722 TI - Effect of late harvest and floral origin on honey antibacterial properties and quality parameters. AB - Honey is a food of high importance due to its nutritional value. The effect of late harvest and pollen composition on honey quality and antimicrobial activity was studied. Different physicochemical parameters were determined as quality indicators. The HMF content, diastase activity, sugar content, antimicrobial activity, and hydrogen peroxide content were selected in current work as the crucial parameters for evaluation. The results proved that the late harvested honey sample showed a vast number of pollens from different blossom periods. The hydrogen peroxide content and antimicrobial activity of late harvested honey was significantly increased (proved by t-test), whereas the honey seems to be affected significantly from weather conditions since the HMF content was also increased. The diastase activity was proved to be lower than the respective in fresh honey, whereas no difference was observed on the sugar content. Finally, the effect of origin and processing in late harvested honey was discussed. PMID- 29037723 TI - Thermogravimetric analysis for rapid assessment of moisture diffusivity in polydisperse powder and thin film matrices. AB - Accurate description of moisture diffusivity is key to precisely understand and predict moisture transfer behaviour in a matrix. Unfortunately, measuring moisture diffusivity is not trivial, especially at low moisture values and/or elevated temperatures. This paper presents a novel experimental procedure to accurately measure moisture diffusivity based on thermogravimetric approach. The procedure is capable to measure diffusivity even at elevated temperatures (>70 degrees C) and low moisture values (>1%). Diffusivity was extracted from experimental data based on "regular regime approach". The approach was tailored to determine diffusivity from thin film and from poly-dispersed powdered samples. Subsequently, measured diffusivity was validated by comparing to available literature data, showing good agreement. Ability of this approach to accurately measure diffusivity at a wider range of temperatures provides better insight on temperature dependency of diffusivity. Thus, this approach can be crucial to ensure good accuracy of moisture transfer description/prediction especially when involving elevated temperatures. PMID- 29037724 TI - Nanoemulsion delivery system of tea polyphenols enhanced the bioavailability of catechins in rats. AB - Tea polyphenols (TP) were emulsified with corn oil and polysorbate 80 by high pressure homogenization. The oil in water (O/W) TP nanoemulsion had droplet sizes of 99.42+/-1.25nm after preparation. The TP nanoemulsion was stable during storage at 4, 25 or 40 degrees C for 20days. An in vitro simulated digestion assay showed that the bioaccessibility of (-)-epigallocatechin gallate (EGCG) was increased in the nanoemulsion compared to that in aqueous solution, but that the bioaccessibilities of (-)-epigallocatechin (EGC), (-)-epicatechin (EC) and (-) gallocatechin gallate (GCG) were greatly decreased. Compared with rats fed an aqueous TP solution, rats fed the TP nanoemulsion had significantly lower maximum plasma concentrations (Cmax) of EGCG and EGC, but the area under the plasma concentration-time curve (AUC0-t) was increased. The data show that use of a nanoemulsion system to deliver tea polyphenols may enhance the absorption of EGCG through controlled release. PMID- 29037725 TI - Mineral composition of durum wheat grain and pasta under increasing atmospheric CO2 concentrations. AB - The concentrations of 10 minerals were investigated in the grain of 12 durum wheat genotypes grown under free air CO2 enrichment conditions, and in four of their derived pasta samples, using inductively coupled plasma mass spectrometry. Compared to ambient CO2 (400ppm; AMB), under elevated CO2 (570ppm; ELE), the micro-element and macro-element contents showed strong and significant decreases in the grain: Mn, -28.3%; Fe, -26.7%; Zn, -21.9%; Mg, -22.7%; Mo, -40.4%; K, 22.4%; and Ca, -19.5%. These variations defined the 12 genotypes as sensitive or non-sensitive to ELE. The pasta samples under AMB and ELE showed decreased mineral contents compared to the grain. Nevertheless, the contributions of the pasta to the recommended daily allowances remained relevant, also for the micro elements under ELE conditions (range, from 18% of the recommended daily allowance for Zn, to 70% for Mn and Mo). PMID- 29037726 TI - gamma-Fe2O3 magnetic nanoparticle functionalized with carboxylated multi walled carbon nanotube for magnetic solid phase extractions and determinations of Sudan dyes and Para Red in food samples. AB - Hybrid nanostructures composed of gamma-Fe2O3 (maghemite) and carboxylated-multi walled carbon nanotube (cMWCNT) were used for the magnetic solid phase extractions and determination of Sudan I, II, III, IV, Para Red, Sudan Black B and Sudan Red 7B in chili products. High performance liquid chromatography (HPLC) was employed for the measurements. Limit of quantification (LOQ) values were found in the range 0.44-2.82ngmL-1 for analytes. The best extraction parameters were determined as pH 8.0, 40mg of magnetic nanoparticle, 4.0min of contact time, 0.3mL desorption by acetonitrile. The samples were dissolved in acetone dichloromethane-methanol (3:2:1, v/v/v) and diluted with acetonitrile-methanol (v/v; 80:20) before the method was applied. Concentrations of Sudan dyes and Para Red were determined in four samples of chili powder from less than LOQ to 31.21+/ 1.6ngg-1, two samples of chili tomato sauces (lower than LOQ) and two samples of ketchup (lower than LOQ). PMID- 29037727 TI - Modifications of cell wall pectin in chilling-injured 'Friar' plum fruit subjected to intermediate storage temperatures. AB - 'Friar' plum (Prunus salicina Lindl.) fruit were stored at low (0 degrees C), intermediate (5 and 15 degrees C) and ambient temperature (25 degrees C). Flesh translucency was evidenced as the main chilling injury (CI) symptom and the CI developed rapidly at 5 and 15 degrees C but suppressed at 0 degrees C. Modifications of cell wall pectin in 'Friar' plums were investigated during storage. Sodium carbonate-soluble pectin (SSP) was found to be predominant in the fruit but it decreased more rapidly at 5 and 15 degrees C than 0 degrees C. Nevertheless, SSP possessed abundant galactose, arabinose and rhamnose at 5 and 15 degrees C. Nanostructural observations indicated that the detachment and degradation of linear backbone chains in SSP molecules were enhanced at 5 and 15 degrees C. Therefore, the development of CI of 'Friar' plums at intermediate temperatures was associated with the modifications of SSP in the cell wall pectin of the fruit subjected to chilling stress. PMID- 29037728 TI - Structural polymeric features that contribute to in vitro immunostimulatory activity of instant coffee. AB - An instant coffee fraction, rich in arabinogalactans, obtained by ultrafiltration, using 1 and 5kDa membranes, has previously shown in vitro stimulatory activity on BALB/c mice spleen B lymphocytes. The compounds inducing lymphocytic activation were shown to elute, mainly near the void volume by size exclusion chromatography, using Bio-Gel P6 (1-6kDa). Treatment of the compounds with chymotrypsin, a digestive protease, did not affect the induced B lymphocyte activation. On the contrary, hydrolysis with an alpha-l-arabinofuranosidase, removing single terminally-linked arabinose residues, decreased the extent of B cell activation. The immunostimulatory activity of these compounds was also observed by in vitro experiments, using bone marrow-derived macrophages and dendritic cells as responders. Altogether, these results show the relevance of single arabinose residues, present at the non-reducing end of polymeric compounds, to the coffee stimulatory activity in cells mediating innate and acquired immunity. PMID- 29037729 TI - Evaluation of folate-binding proteins and stability of folates in plant foliages. AB - The present study reports the presence of folate binding proteins (FBPs) in the plants, coriander and Arabidopsis, and their contributions toward folate enhancement. After observing that salicylic acid (SA) enhanced the accumulation of folates in coriander, a study was conducted in Arabidopsis, where twofold increase in folates occurred in foliage upon SA treatment. For obtaining insights into genes involved in SA-induced folate accumulation, microarray data of responsive genes in Arabidopsis were screened. Based on the expression profiles, 19 genes were further analysed by qPCR. The results revealed that folate biosynthetic genes were largely down-regulated, whereas a gene of a putative folate-binding protein (FPB) was up-regulated, which correlated with a significant increase of FPBs in foliage. This new information on a plant FBP appears useful for metabolic engineering of a wide range of crops to enhance the content and stability of the folates during post-harvest storage. PMID- 29037731 TI - Sequential extraction of gel-forming proteins, collagen and collagen hydrolysate from gutted silver carp (Hypophthalmichthys molitrix), a biorefinery approach. AB - Collagen and collagen hydrolysate (CH) was recovered from the bone and skin containing sediment residue emerging during pH-shift-based protein isolation from silver carp. Hydrolysis resulted in higher yield (15.1-15.4%) compared to collagen isolation by acid or pepsin (3.1-5.9%) (p<0.05). Isolated collagens were characterized as type I and maintained their triple-helical structure, confirmed by SDS-PAGE and FTIR. Pepsin-hydrolysis and sequential hydrolysis by pepsin and trypsin hydrolyzed all heavy molecular weight chains of collagen but sequential hydrolysis yielded higher degree of hydrolysis. When CH was added to a silver carp protein isolate prior to gelation, the gel behavior was dependent on molecular weight of the added CH. More hydrolyzed collagen emerging from sequential hydrolysis improved water holding capacity of the gel while reducing its breaking force. Thus, residue from pH-shift processing of fish can be used for isolation of high quality collagen/CH and provides a promising basis for a multiple-product fish biorefinery. PMID- 29037730 TI - Citrus fruits freshness assessment using Raman spectroscopy. AB - The freshness of citrus fruits commonly available in the market was non destructively assessed by Raman spectroscopy. Intact clementine, mandarin and tangerine species were characterised concerning their carotenoids skin Raman signalling in a time course from the moment they were acquired as fresh stock, supplying the market, to the physical degradation, when they were no longer attractive to consumers. The freshness was found to strongly correlate to the peel Raman signal collected from the same area of the intact fruits in a time course of a maximum of 20days. We have shown that the intensity of the carotenoid Raman signal is indeed a good indicator of fruit freshness and introduced a Raman coefficient of freshness (CFresh), whose time course is linearly decreasing, with different slope for different citrus groups. Additionally, we demonstrated that the freshness assessment could be achieved using a portable Raman instrument. The results could have a strong impact for consumer satisfaction and the food industry. PMID- 29037732 TI - Arabinoxylanase from glycoside hydrolase family 5 is a selective enzyme for production of specific arabinoxylooligosaccharides. AB - An arabinose specific xylanase from glycoside hydrolase family 5 (GH5) was used to hydrolyse wheat and rye arabinoxylan, and the product profile showed that it produced arabinose substituted oligosaccharides (AXOS) having 2-10 xylose residues in the main chain but no unsubstituted xylooligosaccharides (XOS). Molecular modelling showed that the active site has an open structure and that the hydroxyl groups of all xylose residues in the active site are solvent exposed, indicating that arabinose substituents can be accommodated in the glycone as well as the aglycone subsites. The arabinoxylan hydrolysates obtained with the GH5 enzyme stimulated growth of Bifidobacterium adolescentis but not of Lactobacillus brevis. This arabinoxylanase is thus a good tool for the production of selective prebiotics. PMID- 29037733 TI - Continuous exposure to ethylene in the storage environment adversely affects 'Afourer' mandarin fruit quality. AB - 'Afourer' mandarins were stored in air containing ethylene at 0.001, 0.01, 0.1, and 1MULL-1 at 20, 10, 5 and 0 degrees C and changes in a range of external and internal quality parameters were examined for up to 10weeks in storage. At all storage temperatures, reducing ethylene concentration in the storage environment decreased the rate of respiration, visible deterioration of the calyx region, ethanol accumulation in the juice, loss of eating quality, and at chilling temperatures reduced rind pitting. The quality attributes limiting mandarin storage life differed between the different storage temperatures but retention of mandarin quality was always optimised by maintaining the lowest possible ethylene atmosphere around fruit. Thus, the primary target should be to ensure the ethylene levels are <=0.01MULL-1, as loss of quality was accelerated above this concentration. PMID- 29037734 TI - Reducing the negative sensory impact of volatile phenols in red wine with different chitosans: Effect of structure on efficiency. AB - "Brett character" is a negative sensory attribute acquired by red wines when contaminating Dekkera/Brettanomyces yeasts produce 4-ethylphenol and 4 ethylguaiacol, known as volatile phenols (VPs), from cinnamic acid precursors. In this study, chitins and chitosans with different structural features, namely deacetylation degree (5-91%) and molecular weight (24-466kDa) were used for the reduction of this sensory defect. Chitins and chitosans decreased 7-26% of the headspace abundance of VPs without changing their amounts in wines. The efficiency of reduction increased with the deacetylation degree and applied dose. Reduction of headspace abundance of VPs by chitosans enabled significant decreases in the negative phenolic and bitterness attributes and increased positive fruity and floral attributes. Results show that chitosan with high deacetylation degrees, including fungal chitosan, which is already approved for use in wines, is an efficient approach for reducing the negative sensory impact of VPs in red wines. PMID- 29037735 TI - l-Theanine: An astounding sui generis integrant in tea. AB - l-theanine (l-Th), a non-protein amino acid present in tea, is a valuable nutraceutical product with unique health benefits and used as an additive in food industry. l-Th enhances the umami taste but its use is limited due to its inadequate production. Different extraction approaches from tea shoots, chemical synthesis to microbial transformation have been tried to meet its demand. In vitro, in vivo as well as clinical studies have shown its positive effect in regulating CNS disorders. l-Th has become choice ingredient in CNS active products due to its anti-stress and neuroprotective role in dementias particularly in retrogression of Alzheimer's. l-Th biochemically modulates various anti-neoplastic agents by increasing their bioavailability in tumour cells. The review, is an effort to condense the recent research on l-Th highlighting its biological resource, plausible role in tea plant, production approaches, its physiological role on human health and future prospects. PMID- 29037736 TI - DNA barcoding based identification of Hippophae species and authentication of commercial products by high resolution melting analysis. AB - Sea buckthorn (Hippophae), an ancient crop with modern virtues, is increasingly consumed in source of foods and nutraceuticals. The growing demand leads to the adulteration of commercial sea buckthorn products, which is a common form of food fraud. Herein, a high resolution melting assay, targeting a DNA barcoding region of the internal transcribed spacer 2 (ITS2) (Bar-HRM) was developed to identify the seven native Chinese Hippophae species, and to authenticate commercial sea buckthorn products. Melting data from the HRM assay demonstrated that all Hippophae species could be clearly distinguished. Then, application to commercial sea buckthorn products indicated the existence of adulterants or contamination, further confirmed using Sanger sequencing results for PCR products from HRM. The Bar-HRM technique proposed in this work could provide a method for regulatory agencies, promoting consumers trust, and raise the quality and safety of sea buckthorn products. PMID- 29037737 TI - The impact of disulfide bond dynamics in wheat gluten protein on the development of fermented pastry crumb. AB - Gluten proteins functionality during pastry production was examined by including redox agents in the ingredient bill. Addition of reducing and oxidizing agents respectively increased and decreased dough height during fermentation. The presence of large gas bubbles in the samples with oxidizing agents may have caused a 'stacking'-effect and a more effective dough lift. During baking, the level of extractable proteins decreased to comparable values for all samples, except when potassium iodate (KIO3) was used in the recipe. As a result of its use, a lower level of gliadin was incorporated into the gluten polymer and dough layers tended to 'slide' apart during baking, thereby causing collapse. Most likely, KIO3 caused glutenin oxidation within each individual dough layer to such extent during the dough stage that insufficient thiol groups were available for forming dough layer interconnections during baking, after margarine melting. Furthermore, addition of redox agents impacted the product's crumb structure. PMID- 29037738 TI - Peptides derived from in vitro gastrointestinal digestion of germinated soybean proteins inhibit human colon cancer cells proliferation and inflammation. AB - The aim was to investigate the potential of germinated soybean proteins asa source of peptides with anticancer and anti-inflammatory activities produced after simulated gastrointestinal digestion. Protein concentrate from germinated soybean was hydrolysed with pepsin/pancreatin and fractionated by ultrafiltration. Whole digest and fractions>10, 5-10, and<5kDa caused cytotoxicity to Caco-2, HT-29, HCT-116 human colon cancer cells, and reduced inflammatory response caused by lipopolysaccharide in macrophages RAW 264.7. Antiproliferative and anti-inflammatory effects were generally higher in 5-10kDa fractions. This fraction was further purified by semi-preparative chromatography and characterised by HPLC-MS/MS. The most potent fraction was mainly composed of beta-conglycinin and glycinin fragments rich in glutamine. This is the first report on the anti-cancer and anti-inflammatory effects of newly isolated and identified peptides from germinated soybean released during gastrointestinal digestion. These findings highlight the potential of germination as a process to obtain functional foods or nutraceuticals for colon cancer prevention. PMID- 29037739 TI - Targeted regulation of hygroscopicity of soybean antioxidant pentapeptide powder by zinc ions binding to the moisture absorption sites. AB - In the present study, a targeted regulation of hygroscopicity of soybean antioxidant pentapeptide (SAP) powder was explored by zinc ions binding to its moisture absorption sites. Scanning electron microscopy, X-ray diffraction analysis, Fourier transform infrared spectroscopy and an energy-dispersive X-ray spectroscope were used to confirm the formation of the SAP-zinc complex. The results showed that morphology of SAP-zinc complex belonged to crystalline nanoparticles. The moisture sorption/desorption kinetics of the SAP-zinc complex changed compared to that of the SAP. In particular, the moisture sorption capacity of the SAP decreased and the distribution of adsorbed water changed after zinc chelation. Based on the binding of zinc ions to the moisture absorption sites, the hygroscopicity of SAP powder could be target regulated. Thus, this study could provide a new method to regulate the hygroscopicity of peptide powder. PMID- 29037740 TI - Antioxidant activity of rosemary essential oil fractions obtained by molecular distillation and their effect on oxidative stability of sunflower oil. AB - The objective of this study was to evaluate the antioxidant activity of rosemary essential oil fractions obtained by molecular distillation (MD) and investigate their effect on the oxidative stability of sunflower oil. MD fractions were prepared in a series of low-pressure stages where rosemary essential oil was the first feed. Subsequently, a distillate (D1) and residue (R1) were obtained and the residue fraction from the previous stage used as the feed for the next. The residue fractions had the largest capacity to capture free radicals, and the lowest peroxide values, conjugated dienes and conjugated trienes. The antioxidant activity of the fractions was due to oxygenated monoterpenes, specifically alpha terpineol and cis-sabinene hydrate. Oxidative stability results showed the residues (R1 and R4) and butylated hydroxytoluene had greater antioxidant activity than either the distillate fractions or original rosemary essential oil. The residue fractions obtained by short path MD of rosemary essential oil could be used as a natural antioxidants by the food industry. PMID- 29037741 TI - Influence of emulsion interfacial membrane characteristics on Ostwald ripening in a model emulsion. AB - Ostwald ripening is a major destabilization mechanism for emulsions containing flavor oils with relatively high water solubilities. Emulsions with different oil phase compositions were prepared that were stabilized by polyoxyethylene alkyl ether-type emulsifiers with differently sized hydrophilic and hydrophobic groups. Emulsions prepared using only orange oil were highly unstable to Ostwlad ripening during storage. When emulsifier concentration was increased, Ostawald ripening in emulsions containing emulsifiers with small hydrophilic groups was inhibited, while size increment of droplets in emulsions containing emulsifiers with large hydrophilic groups was not. Droplet enlargement was effectively inhibited by incorporating corn oil into the oil phase prior to homogenization. However, the concentration of corn oil required to inhibit Ostwald ripening varied depending on the structural characteristics and concentrations of the emulsifiers present. These results could have important implications for the selection of emulsifiers to improve the physical stability of orange oil emulsions for use in the food and beverage industries. PMID- 29037742 TI - Augmentation of chemical and organoleptic properties in Syzygium cumini wine by incorporation of grape seeds during vinification. AB - The role of grape seed tannins on improving organoleptic properties and its involvement in color stabilization in red wine are well established. The addition of grape seeds as the source of condensed tannins in fruit wine may provide a solution for its color instability and improvement of sensory attributes. Syzgium cumini is traditionally known for its therapeutic properties. In the current study, the influence of yeasts and grape seed addition during fermentation on the chromatic, phenolic and sensory attributes of the wine was accessed. Grape seed addition improved the color characteristics of wine and increased overall phenolic composition. Analysis by HPLC revealed 6 major anthocyanins, among which 3, 5-diglucoside form of delphidin and petunidin was found to be the major components. Cluster and PLSR analysis explained the impact of seed addition on the yeasts, as well as on the perception of panelists, with bitterness and astringency as the dominating attributes. PMID- 29037743 TI - The effect of platelet-rich fibrin on autologous osteochondral transplantation: An in vivo porcine model. AB - BACKGROUND: This work aimed to evaluate the efficacy of cartilage transplantation to the medial femoral condyle+/-platelet-rich fibrin (PRF) augmentation in a porcine model. The hypothesis of the study was that PRF may act as a bioactive cell scaffold to fill defects and enhance cartilage regeneration. METHODS: Thirty two knees of 16 miniature pigs were randomly assigned to four groups. The critical-size osteochondral defects (8x5mm) in femoral condyle of both knees were treated with one of the following: group 1-untreated controls; group 2-cartilage fragments alone; group 3-PRF alone; group 4-PRFT+cartilage fragments. After completion of the surgical implantation, the periosteal patch harvested from the proximal tibia was sutured onto the cartilage of the medial condyle to cover the implanted defects. Animals were sacrificed at six months after treatment. The regenerated cartilages were assessed by gross inspection and histological examination. RESULTS: The best results were obtained with the repair tissue being hyaline-like cartilage (group 4). The grading score of histological evaluation demonstrated that group 4 had better matrix, cell distribution and cartilage mineralization than group 2 and group 3. PRF showed a positive effect on the cartilage repair; the procedure was more effective when PRF was combined with autologous chondrocytes. CONCLUSIONS: This approach may provide a successfully employed technique to target cartilage defects in vivo. Larger groups and longer periods of study may provide more definitive and meaningful support for using this therapeutic approach as a new way of cartilage regeneration. PMID- 29037744 TI - Intoxication from the novel synthetic cannabinoids AB-PINACA and ADB-PINACA: A case series and review of the literature. AB - Synthetic cannabinoids (SC), are a novel class of designer drugs which emerged as a drug of abuse in the late 2000's. We report a case series of 6 patients who may have smoked a synthetic cannabinoid product in a remote wilderness setting. They presented with varying degrees of altered mental status, agitation, and seizures. Two were confirmed to have AB-PINACA, ADB-PINACA and their respective pentanoic acid metabolites in biological specimens via liquid chromatography time-of-flight mass spectrometry (LC-TOF/MS). Both compounds had DEA Schedule I classification at the time of case presentation, and 22 SCs are currently temporary or permanent DEA Schedule I. More than 150 SCs are known to date, and new compounds are appearing at a rapid rate on darknet and surface web e-commerce websites, marketed as "research chemicals" or "legal highs." The scale and rapidity of SC evolution make legal control and analytical detection difficult. Nontargeted testing with liquid chromatography high resolution mass spectrometry (LC-HRMS), examining both parent compounds and metabolites, is the ideal method for novel SC identification and confirmation. Due to full agonism at the cannabinoid receptors CB1 and CB2, clinical effects are more severe than marijuana, which is a partial cannabinoid receptor agonist. They include agitated delirium, lethargy and coma, seizures, tachycardia, hypertension, and hallucinations, among other findings. Treatment is primarily symptomatic and aimed at airway protection and control of agitation and seizures. SCs do not appear to be abating anytime soon and require the cooperation of law enforcement, analytical scientists, and clinicians to adequately control. This article is part of the Special Issue entitled 'Designer Drugs and Legal Highs.' PMID- 29037745 TI - Genetics update: Monogenetics, polygene disorders and the quest for modifying genes. AB - The genetic channelopathies are a broad collection of diseases. Many ion channel genes demonstrate wide phenotypic pleiotropy, but nonetheless concerted efforts have been made to characterise genotype-phenotype relationships. In this review we give an overview of the factors that influence genotype-phenotype relationships across this group of diseases as a whole, using specific individual channelopathies as examples. We suggest reasons for the limitations observed in these relationships. We discuss the role of ion channel variation in polygenic disease and highlight research that has contributed to unravelling the complex aetiological nature of these conditions. We focus specifically on the quest for modifying genes in inherited channelopathies, using the voltage-gated sodium channels as an example. Epilepsy related to genetic channelopathy is one area in which precision medicine is showing promise. We will discuss the successes and limitations of precision medicine in these conditions. This article is part of the Special Issue entitled 'Channelopathies.' PMID- 29037746 TI - Cystic parathyroid as a cause of hypercalcemia. PMID- 29037747 TI - Advancement Flap Technique for Anal Fistula in Patients With Crohn's Disease: A Systematic Review of the Literature. AB - INTRODUCTION: Treatment for anal fistulas in patients with Crohn's disease is still challenging, even for the expert surgeon. The advancement flap technique is characterized by the preservation of the anal sphincter complex. METHODS: A systematic review of the literature, selecting series of patients affected by Crohn's disease and anal fistulas and treated using advancement flap technique was performed. Patients followed during at least 6 months have been included. RESULTS: From 128 initial studies, 11 studies were selected, including overall 135 patients. Those studies show low- level evidence. Results in a series with follow-up from 8,4 to 82 months, stated a clinical success of 66% and recurrence rate around 30%. However there was an evident heterogeneity of results. CONCLUSION: The review concludes that the advancement flap technique to treat anal fistulas in patients with Crohn's disease is an adequate alternative. New studies are necessary to provide higher-level evidence. PMID- 29037748 TI - Oncological results of the educational Rectal Cancer Project in Spain 10 years after its implementation. AB - INTRODUCTION: The objective of this observational, prospective, multicenter and multilevel study was to evaluate the oncological outcomes (local recurrence, metastasis and overall survival) of the Rectal Cancer Project of the Spanish Association of Surgeons (AEC) 10 years after its initiation, comparing the results with Scandinavian registries. METHODS: The AEC teaching project database includes 17,620 patients to date, of which 4,508 were operated on with a potentially curative resection between March 2006 and December 2010. All of them come from the first 59 hospitals included in the project, and therefore followed for at least 5 years, and are the subject of the present study. RESULTS: The cumulative incidence of local recurrence was 7.3 (95% CI: 8.2-6.5), metastasis 21.0 (CI 95%: 22.4-19.7) and overall survival 72.3 (CI 95%: 80.3-77.6). The multilevel regression analysis with the hospital variable as a random effect, showed a significant variation among the hospitals for the cancer outcome variables: general survival, local recurrence and metastasis (delta2=0.053). CONCLUSIONS: This study indicates that the results observed in the AEC' Rectal Cancer Project are inferior than those observed in the Scandinavian registries that we tried to emulate and that this is attributable to the variability of practice in some centers. PMID- 29037749 TI - Psychopathological features in Noonan syndrome. AB - INTRODUCTION: Noonan syndrome (NS) is an autosomal dominant disorder characterized by short stature, skeletal and haematological/lymphatic defects, distinctive facies, cryptorchidism, and a wide spectrum of congenital heart defects. Recurrent features also include variable cognitive deficits and behavioural problems. Recent research has been focused on the assessment of prevalence, age of onset and characterization of psychiatric features in this disorder. Herein, we evaluated the prevalence of attention deficit and hyperactivity disorder (ADHD), anxiety and depressive symptoms and syndromes in a cohort of individuals with clinical and molecular diagnosis of NS. METHODS: The Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children Present and Lifetime version (K-SADS PL) has been used for the assessment of psychiatric disorders according to Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). Multidimensional Anxiety Scale for Children (MASC) and the Children's Depression Inventory (CDI) have been assessed for the evaluation of anxiety and depressive symptoms and syndromes, whereas Conners Teacher and Parent Rating Scales-long version (CRS-R) have been used to evaluate ADHD. RESULTS: The study included 27 individuals (67% males) with an average age of 10.4 years (range 6-18 years) receiving molecular diagnosis of NS or a clinically related condition, evaluated and treated at the Neuropsychiatric Unit of Children's Hospital Bambino Gesu and at the Center for Rare Diseases of Fondazione Policlinico Universitario Agostino Gemelli, in Rome. Twenty individuals showed mutations in PTPN11, five in SOS1 and two in SHOC2. The mean IQ was 94 (Standard Deviation = 17, min = 56, max = 130). Seventy percent of the individuals (n = 19; 95% Confidence Interval = 52-85%) showed ADHD features, with six individuals reaching DSM-IV-TR criteria for ADHD disorder, and thirteen showing subsyndromal traits. Symptoms or syndrome of anxiety were present in 37% of the cohort (n = 10; 95% Confidence Interval = 19-56%), with two individuals showing anxiety disorder and eight cases exhibiting subsyndromal traits. CONCLUSION: Our results show individuals with NS do present a very high risk to develop psychiatric disorders or symptoms during paediatric age. Based on these findings, preschool assessment of inattentive, hyperactivity/impulsivity and anxiety/depressive symptoms is recommended in order to plan a personalized treatment for psychological/psychiatric issues in affected individuals. Dedicated prospective studies are required to confirm the present data and better characterize the psychopathological profile in NS. PMID- 29037750 TI - Environmental toxicology and omics: A question of sex. AB - : Molecular initiating events and downstream transcriptional/proteomic responses provide valuable information for adverse outcome pathways, which can be used predict the effects of chemicals on physiological systems. There has been a paucity of research that addresses sex-specific expression profiling in toxicology and due to cost, time, and logistical considerations, sex as a variable has not been widely considered. In response to this deficiency, federal agencies in the United States, Canada, and Europe have highlighted the importance of including sex as a variable in scientific investigations. Using case studies from both aquatic and mammalian toxicology, we report that there can be less than ~20-25% consensus in how the transcriptome and proteome of each sex responds to chemicals. Chemicals that have been shown to elicit sex-specific responses in the transcriptome or proteome include pharmaceuticals, anti-fouling agents, anticorrosive agents, and fungicides, among others. Sex-specific responses in the transcriptome and proteome are not isolated to whole animals, as investigations demonstrate that primary cell cultures isolated from each sex responds differently to toxicants. This signifies that sex is important, even in cell lines. Sex has significant implications for predictive toxicology, and both male and female data are required to improve robustness of adverse outcome pathways. BIOLOGICAL SIGNIFICANCE: Clinical toxicology recognizes that sex is an important variable, as pharmacokinetics (ADME; absorption, distribution, metabolism, and excretion) can differ between females and males. However, few studies in toxicology have explored the implication of sex in relation to the transcriptome and proteome of whole organisms. High-throughput molecular approaches are becoming more frequently applied in toxicity screens (e.g. pre-clinical experiments, fish embryos, cell lines, synthetic tissues) and such data are expected to build upon reporter-based cell assays (e.g. receptor activation, enzyme inhibition) used in toxicant screening programs (i.e. Tox21, ToxCast, REACH). Thus, computational models can more accurately predict the diversity of adverse effects that can occur from chemical exposure within the biological system. Our studies and those synthesized from the literature suggest that the transcriptome and proteome of females and males respond quite differently to chemicals. This has significant implications for predicting adverse effects in one sex when using molecular data generated in the other sex. While molecular initiating events are not expected to differ dramatically between females and males (i.e. an estrogen binds estrogen receptors in both sexes), it is important to acknowledge that the downstream transcriptomic and proteomic responses can differ based upon the presence/absence of co-regulators and inherent sex-specific variability in regulation of transcriptional and translational machinery. Transcriptomic and proteomic studies also reveal that cell processes affected by chemicals can differ due to sex, and this can undoubtedly lead to sex-specific physiological responses. PMID- 29037751 TI - Discrimination and Risk for Suicide in Later Life. PMID- 29037752 TI - Caring for Nursing Home Residents with Agitation Continues to be Very Challenging. PMID- 29037753 TI - Cancer-Related Cognitive Impairment: Considering Risk Factors, Approaching Assessment, and Contemplating Treatment. PMID- 29037754 TI - Antiviral effects of Lactobacillus crispatus against HSV-2 in mammalian cell lines. AB - BACKGROUND: Herpes simplex virus type 2 (HSV-2) infectious disease is one of the most common viral sexually transmitted diseases. As regards, vaginal lactobacilli play an important role in protecting host against the urogenital pathogens; here we assessed the potential antiviral activity of Lactobacillus crispatus against HSV-2 infection in vitro. METHODS: Both Vero and HeLa cell lines were treated by L. crispatus before, during and after HSV-2 infection. The pre-incubation assay was also performed for the evaluating of virus adsorption by L. crispatus. Virus titer reduction in each stage was determined by a plaque reduction assay. RESULTS: L. crispatus significantly decreased the infectivity of the HSV-2 in initial steps on both cell lines; however, no significant inhibition was ascertained during adsorption and multiplication process. The lactobacilli adhere on Vero cells two-fold stronger than HeLa and subsequently protect the Vero cells nearly 2.5 fold higher than HeLa cell against the virion. Co-incubation of HSV-2 with bacterial cells prior to virus inoculation significantly decreased the virus titer. CONCLUSION: L. crispatus appears to inhibit the entry of the virus into cells by trapping HSV-2 particles. In addition, formation of L. crispatus microcolonies in the cell surface could block HSV-2 receptors and prevent viral entry to cells in initial infection steps. PMID- 29037755 TI - Biochemical identification of residues that discriminate between 3,4 dihydroxyphenylalanine decarboxylase and 3,4-dihydroxyphenylacetaldehyde synthase mediated reactions. AB - In available insect genomes, there are several L-3,4-dihydroxyphenylalanine (L dopa) decarboxylase (DDC)-like or aromatic amino acid decarboxylase (AAAD) sequences. This contrasts to those of mammals whose genomes contain only one DDC. Our previous experiments established that two DDC-like proteins from Drosophila actually mediate a complicated decarboxylation-oxidative deamination process of dopa in the presence of oxygen, leading to the formation of 3,4 dihydroxyphenylacetaldehyde (DHPA), CO2, NH3, and H2O2. This contrasts to the typical DDC-catalyzed reaction, which produces CO2 and dopamine. These DDC-like proteins were arbitrarily named DHPA synthases based on their critical role in insect soft cuticle formation. Establishment of reactions catalyzed by these AAAD like proteins solved a puzzle that perplexed researchers for years, but to tell a true DHPA synthase from a DDC in the insect AAAD family remains problematic due to high sequence similarity. In this study, we performed extensive structural and biochemical comparisons between DHPA synthase and DDC. These comparisons identified several target residues potentially dictating DDC-catalyzed and DHPA synthase-catalyzed reactions, respectively. Comparison of DHPA synthase homology models with crystal structures of typical DDC proteins, particularly residues in the active sites, provided further insights for the roles these identified target residues play. Subsequent site-directed mutagenesis of the tentative target residues and activity evaluations of their corresponding mutants determined that active site His192 and Asn192 are essential signature residues for DDC- and DHPA synthase-catalyzed reactions, respectively. Oxygen is required in DHPA synthase mediated process and this oxidizing agent is reduced to H2O2 in the process. Biochemical assessment established that H2O2, formed in DHPA synthase-mediated process, can be reused as oxidizing agent and this active oxygen species is reduced to H2O; thereby avoiding oxidative stress by H2O2. Results of our structural and functional analyses provide a reasonable explanation of mechanisms involved in DHPA synthase-mediated reactions. Based on the key active site residue Asn192, identified in Drosophila DHPA synthase, we were able to distinguish all available insect DHPA synthases from DDC sequences primarily. PMID- 29037756 TI - Colchicine is an active treatment for everolimus-induced oral ulcers. PMID- 29037757 TI - Testing Smart Glasses in urology: Clinical and surgical potential applications. AB - OBJECTIVES: We aimed to explore the potential benefits of using smart glasses - wearable computer optical devices with touch-less command features - in the surgery room and in outpatient care settings in urology. MATERIALS AND METHODS: Between April and November 2015, 80 urologists were invited to use Google Glass in their daily surgical and clinical practice, and to share them with other urologists. Participants rated the usefulness of smart glasses on a 10-point scale, and provided insights on their potential benefits in a telephone interview. RESULTS: During the testing period, 240 urologists used smart glasses, and the 80 initially invited rated their usefulness. Mean scores for usefulness in the surgery room and in outpatient clinics were 7.4 and 5.4, respectively. The interview revealed that the applications of smart glasses considered most promising in surgery were live video streaming and static image playback, augmented reality, laparoscopic navigation, and digital checklist for safety verification. In outpatient settings, participants considered the glasses useful as a viewing platform for sharing test results, for browsing digital vademecum, and for checking medical records in emergency situations. CONCLUSIONS: Urologists engaged in our experience identified various uses of smart glasses with potential benefits for physician's daily practice, particularly in the urological surgery setting. Further quantitative studies are needed to exploit the actual possibilities of smart glasses and address the technical limitations for their safe use in clinical and surgical practice. PMID- 29037758 TI - The association of vertebrobasilar calcification with etiological subtypes, stroke recurrence and outcome in acute brainstem ischemic stroke. AB - Arterial calcification (AC), a frequent finding on imaging studies, has been reported as a risk factor for ischemic stroke. However few studies have explored the association of AC with etiological subtypes and prognostic implications. The purpose of this study was to investigate the association of AC with demograhics, risk factors and etiological subtypes and to determine whether it predicts stroke recurrence and functional outcome in patients with acute brainstem ischemic stroke. We analyzed our database consisting of patients who were diagnosed as acute brainstem ischemic stroke admitted within 24hours of onset. Etiological classification of stroke was made based on The Trial of ORG in Acute Stroke Treatment (TOAST) Classification. AC in vertebral and basilar arteries were assessed from baseline brain CT. AC degree was categorized according to calcification along the circumference in the densest calcified segment of each vessel (0 point if no calcification in any of the CT slices, 1 point if calcification <50% of circumference and 2 points if calcification >=50% of circumference). Three AC categories were defined according to the total AC score as follows: no AC (0 point), mild AC (1-2 points), severe AC (>=3 points). Recurrent stroke within the first 3 months of follow up and modified Rankin Score (mRS) at 3-month were reviewed. 42% of 188 patients had AC in at least of the vertebrobasilar arteries. Severe AC was related to age and the presence of diabetes mellitus and coronary artery disease. The prevalence of AC was significantly higher in large artery atherosclerosis subtype. The presence of AC was marginally associated with recurrent stroke but did not find to be related with functional outcome. Further studies with larger sample size are warranted to explore this topic. PMID- 29037759 TI - A New Yeast Peroxin, Pex36, a Functional Homolog of Mammalian PEX16, Functions in the ER-to-Peroxisome Traffic of Peroxisomal Membrane Proteins. AB - Peroxisomal membrane proteins (PMPs) traffic to peroxisomes by two mechanisms: direct insertion from the cytosol into the peroxisomal membrane and indirect trafficking to peroxisomes via the endoplasmic reticulum (ER). In mammals and yeast, several PMPs traffic via the ER in a Pex3- and Pex19-dependent manner. In Komagataella phaffii (formerly called Pichia pastoris) specifically, the indirect traffic of Pex2, but not of Pex11 or Pex17, depends on Pex3, but all PMPs tested for indirect trafficking require Pex19. In mammals, the indirect traffic of PMPs also requires PEX16, a protein that is absent in most yeast species. In this study, we isolated PEX36, a new gene in K. phaffii, which encodes a PMP. Pex36 is required for cell growth in conditions that require peroxisomes for the metabolism of certain carbon sources. This growth defect in cells lacking Pex36 can be rescued by the expression of human PEX16, Saccharomyces cerevisiae Pex34, or by overexpression of the endogenous K. phaffii Pex25. Pex36 is not an essential protein for peroxisome proliferation, but in the absence of the functionally redundant protein, Pex25, it becomes essential and less than 20% of these cells show import-incompetent, peroxisome-like structures (peroxisome remnants). In the absence of both proteins, peroxisome biogenesis and the intra ER sorting of Pex2 and Pex11C are seriously impaired, likely by affecting Pex3 and Pex19 function. PMID- 29037761 TI - The alpha4beta1/EMILIN1 interaction discloses a novel and unique integrin-ligand type of engagement. AB - EMILIN1, a homo-trimeric adhesive ECM glycoprotein, interacts with the alpha4beta1 integrin through its gC1q domain. Uniquely among the C1q family members, the EMILIN1 gC1q presents only nine-stranded beta-sandwich fold and the missing strand is substituted by a disordered 19-residue long segment spanning from Y927 to G945 at the apex of the gC1q domain. This unstructured loop exposes to the solvent the acidic residue E933, which plays a key role in the alpha4beta1 integrin mediated interaction. Here, we experimentally determined that the three E933 residues (one from each monomer) are all required for ligand binding. By docking the NMR structure of the gC1q to a virtual alpha4beta1 crystal structure based on the known structures of alpha4beta7 and alpha5beta1 integrins we built a model of alpha4beta1-gC1q complex where three E933 residues are smoothly forced to coordinate the Mg2+ ion at the betaI MIDAS site of the integrin. By bringing the three E933 close in space, the trimeric supramolecular organization of gC1q allows the formation of a proper 3D geometry and suggests a quaternary-structure dependent mode of interaction. Furthermore, we experimentally identified R904 as a synergistic residue for cell adhesion. Accordingly, the model showed that this residue is able to form potential stabilizing intra-chain salt bridges with residues E928 and E930. This mode of interaction likely accounts for a more stable and durable alpha4beta1-gC1q interaction in comparison with the prototypic CS1 ligand. To our knowledge, this is the first report describing the simultaneous involvement of all the three acidic residues of a trimeric ligand in the formation of a dimeric complex with the integrin betaI domain. PMID- 29037760 TI - Biochemical Differences and Similarities between the DEAD-Box Helicase Orthologs DDX3X and Ded1p. AB - DDX3X is a conserved DEAD-box RNA helicase involved in translation initiation and other processes of RNA metabolism. Mutations in human DDX3X and deregulation of its expression are linked to tumorigenesis and intellectual disability. The protein is also targeted by diverse viruses. Previous studies demonstrated helicase and NTPase activities for DDX3X, but important biochemical features of the enzyme remain unclear. Here, we systematically characterize enzymatic activities of human DDX3X and compare these to its closely related Saccharomyces cerevisiae ortholog Ded1p. We show that DDX3X, like Ded1p, utilizes exclusively adenosine triphosphates to unwind helices, oligomerizes to function as efficient RNA helicase, and does not unwind DNA duplexes. The ATPase activity of DDX3X is markedly stimulated by RNA and weaker by DNA, although DNA binds to the enzyme. For RNA unwinding, DDX3X shows a greater preference than Ded1p for substrates with unpaired regions 3' to the duplex over those with 5' unpaired regions. DDX3X separates longer RNA duplexes faster than Ded1p and is less potent than Ded1p in facilitating strand annealing. Our results reveal that the biochemical activities of human DDX3X are typical for DEAD-box RNA helicases, but diverge quantitatively from its highly similar S. cerevisiae ortholog Ded1p. PMID- 29037762 TI - Evaluation of lesion flow coefficient for the detection of coronary artery disease in patient groups from two academic medical centers. AB - BACKGROUND: In this study, lesion flow coefficient (LFC: ratio of % area stenosis [%AS] to the square root of the ratio of the pressure drop across the stenosis to the dynamic pressure in the throat region), that combines both the anatomical (%AS) and functional measurements (pressure and flow), was assessed for application in a clinical setting. METHODS AND RESULTS: Pressure, flow, and anatomical values were obtained from patients in 251 vessels from two different centers. Fractional flow reserve (FFR), Coronary flow reserve (CFR), hyperemic stenosis resistance index (HSR) and hyperemic microvascular index (HMR) were calculated. Anatomical data was corrected for the presence of guidewire and the LFC values were calculated. LFC was correlated with FFR, CFR, HSR, HMR, individually and in combination with %AS. The p<0.05 was used for statistical significance. LFC correlated significantly when the FFR (pressure-based), CFR (flow-based), and anatomical measure %AS were combined (r=0.64; p<0.05). Similarly, LFC correlated significantly when HSR, HMR, and %AS were combined (r=0.72; p<0.05). LFC was able to significantly (p<0.05) distinguish between the two concordant and the two discordant groups of FFR and CFR, corresponding to the clinically used cut-off values (FFR=0.80 and CFR=2.0). The LFC could also significantly (p<0.05) distinguish between the normal and abnormal microvasculature conditions in the presence of non-significant epicardial stenosis, while the comparison was borderline significant (p=0.09) in the presence of significant stenosis. CONCLUSION: LFC, a parameter that combines both the anatomical and functional end-points, has the potential for application in a clinical setting for CAD evaluation. PMID- 29037764 TI - [Evaluation of the efficacy of lidocaine and magnesium sulphate in reducing the hemodynamic effects caused after intubation/laryngoscopy]. PMID- 29037763 TI - Aortic pseudoaneurysm & endocarditis caused by Aerococcus viridans: A case report and literature review. AB - Aerococcus viridans is a gram positive microaerophilic lactic acid coccus which is known to cause an infection in lobsters called Gaffkaemia. Consumption of gaffekaemia affected lobsters is considered to be safe if properly cooked even though there hasn't been any research on potential transmission by this route. Though uncommon, A. viridans is capable of causing a virulent endocarditis associated with aortic valve destruction and abscess. There have been 11 worldwide reported cases of infective endocarditis, of which 6 were aortic and only one of them had aortic pseudoaneurysm (APA). We review these cases and also present the case of a 32-year-old young man with no risk factors who presented initially with native valve endocarditis with aerococcus viridans and subsequently with large aortic pseudo-aneurysm. PMID- 29037765 TI - Mechanisms Causing Loss of Keratinocyte Cohesion in Pemphigus. AB - The autoimmune blistering skin disease pemphigus is caused by IgG autoantibodies against desmosomal cadherins, but the precise mechanisms are in part a matter of controversial discussions. This review focuses on the currently existing models of the disease and highlights the relevance of desmoglein-specific versus nondesmoglein autoantibodies, the contribution of nonautoantibody factors, and the mechanisms leading to cell dissociation and blister formation in response to autoantibody binding. As the review brings together the majority of laboratories currently working on pemphigus pathogenesis, it aims to serve as a solid basis for further investigations for the entire field. PMID- 29037766 TI - Frequency and Markers of Precursor Lesions and Implications for the Pathogenesis of Testicular Germ Cell Tumors. AB - BACKGROUND: The World Health Organization classification of urologic cancer 2016 describes 3 noninvasive precursor lesions for testicular germ cell tumor type II (TGCT) of young adults. Germ cell neoplasia in situ is the initial precursor lesion. Intratubular seminoma (ITSE), and intratubular embryonal carcinoma (ITEC) are 2 intermediate precursor lesions. Microinvasive testicular germ cell tumor (MGCT) is an invasive precursor lesion. MATERIALS AND METHODS: We undertook a retrospective study of testes obtained using orchiectomy for TGCT and examined precursor lesions. The examinations included immunohistochemical staining of the precursor lesions for octamer-binding transcription factor 4 (OCT4), CD117, and CD30. We examined 63 consecutive and evaluable patients. RESULTS: Of the patients, 44 had seminoma and 19 had a nonseminomatous TGCT. MGCT was more frequent than ITSE (P = .002; chi2 test). None of the testes had ITEC. Immunohistochemistry showed that 72 of 77 precursor lesions (93%) stained positive for OCT4 and CD117 and negative for CD30. The pattern represents a seminomatous immunophenotype. A meta-analysis of the published studies regarding precursor lesions included 1007 patients. Overall, the pooled rate of ITSE was 29% (95% confidence interval [CI], 18%-40%) and the pooled rate of MGCT was 21% (95% CI, 15%-27%). CONCLUSION: MGCT is a frequent intermediate precursor lesion. PMID- 29037767 TI - DT-13 synergistically potentiates the sensitivity of gastric cancer cells to topotecan via cell cycle arrest in vitro and in vivo. AB - Natural medicine has multi-levels, multi-paths and multi-targets, and an increasing number of reports have confirmed that the combination of natural medicine with chemotherapy drugs exhibit a significant synergistic effect. It is necessary to find drug combination strategies to enhance efficacy and reduce toxicity, which can relieve the restrictions on the use of several chemotherapy drugs that have serious toxicity. Our previous reports showed that DT-13 inhibits cancer proliferation, invasion, migration, metastasis, and angiogenesis and induces autophagy. In this study, we evaluated the anti-proliferation effect of DT-13 on a panel of 40 different cancer cell lines for the first time. Moreover, it is also the first time that the combination of DT-13 with 5 different chemotherapy drugs on 3 common cancer cells has been examined. We further confirmed that DT-13 enhanced the sensitivity of gastric cancer cells to topotecan (TPT) via cell cycle arrest in vitro and in vivo. Considering that TPT has been subjected to restriction because of its serious toxicity, DT-13 showed the ability to enhance its effect and reduce its toxicity, which could provide a strategy to reduce the toxic and clinical side effects of TPT. PMID- 29037768 TI - Potential of macroalgae for biodiesel production: Screening and evaluation studies. AB - Nowadays, biofuel production is a fast expanding industry and is facing a growing dilemma about a feedstock source capable of keeping up with demand. Recently, macroalgae have been attracting a wide attention as a source for biofuel. In the present study, ten macroalgae were collected and screened as biodiesel feedstocks. As a result of their high biomass production and relatively high lipid content, Ulva lactuca, Padina boryana and Ulva intestinalis showed the highest significant lipids and fatty acid methyl esters (FAMEs) areal productivities among the studied species. Saturated fatty acids (SAFs) showed insignificant differences in the selected species, with noticeably significant higher polyunsaturated fatty acids (PUFAs) content in U. lactuca by 4.2 and 3 times, with respect to P. boryana and U. intestinalis, respectively. The recorded increase in PUFAs was attributed to higher content of C16:4n-3, C18:3n-3 and C18:4n-3. By lipid fractionation, P. boryana showed significant higher concentration of neutral lipids (37.7 mg g-1 CDW, representing 46.7% of total fatty acids) in comparison to U. lactuca and U. intestinalis, which showed 16% and 17% lower neutral lipid fractions, respectively. In addition, biodiesel characteristics of the studied macroalgae complied with that of international standards. Furthermore, oil-free residual biomass can be readily converted into fermentable sugars or biogas due to its high carbohydrates content, which adds to the economics of macroalgae as biofuel feedstock. In conclusion, the present study confirmed that macroalgae represent an attractive alternative renewable feedstock for biodiesel and other biofuels. PMID- 29037769 TI - Activation of respiratory muscles during respiratory muscle training. AB - It is unknown which respiratory muscles are mainly activated by respiratory muscle training. This study evaluated Inspiratory Pressure Threshold Loading (IPTL), Inspiratory Flow Resistive Loading (IFRL) and Voluntary Isocapnic Hyperpnea (VIH) with regard to electromyographic (EMG) activation of the sternocleidomastoid muscle (SCM), parasternal muscles (PARA) and the diaphragm (DIA) in randomized order. Surface EMG were analyzed at the end of each training session and normalized using the peak EMG recorded during maximum inspiratory maneuvers (Sniff nasal pressure: SnPna, maximal inspiratory mouth occlusion pressure: PImax). 41 healthy participants were included. Maximal activation was achieved for SCM by SnPna; the PImax activated predominantly PARA and DIA. Activations of SCM and PARA were higher in IPTL and VIH than for IFRL (p<0.05). DIA was higher applying IPTL compared to IFRL or VIH (p<0.05). IPTL, IFRL and VIH differ in activation of inspiratory respiratory muscles. Whereas all methods mainly stimulate accessory respiratory muscles, diaphragm activation was predominant in IPTL. PMID- 29037771 TI - Factors Affecting Jordanian School Adolescents' Experience of Being Bullied. AB - PURPOSE: The purpose of this study was to identify the Jordanian school adolescents' experience of being bullied, and to examine its association with selected socio-demographic variables. DESIGN AND METHODS: This cross sectional descriptive study used multi-stages cluster sampling technique to recruit a sample of in-school adolescents in Jordan (N=436). The Personal Experiences Checklist was used to measure the experience of bullying. Descriptive statistics and parametric tests were used in the analysis. RESULTS: Relational-verbal bullying was the most common form of bullying while cyber bullying was the least common type. Male adolescents experienced bullying more than females. In addition, adolescents belonging to low-income families experienced bullying more than those from moderate-income families. Finally, being bullied was negatively correlated with academic performance of students. CONCLUSIONS: This study indicated that risk factors for bullying are multifaceted which necessitate the development of prevention and intervention strategies to combat bullying taking into consideration these factors. PRACTICE IMPLICATIONS: Schools should introduce environmental changes to discourage bullying and establish a policy with specific guidelines of what constitutes bullying behavior and expected disciplinary procedures. Staff training on information about the definition of bullying, current trends, and the effects of bullying is also recommended. PMID- 29037770 TI - Dietary nitrate supplementation opposes the elevated diaphragm blood flow in chronic heart failure during submaximal exercise. AB - Chronic heart failure (CHF) results in a greater cost of breathing and necessitates an elevated diaphragm blood flow (BF). Dietary nitrate (NO3?) supplementation lowers the cost of exercise. We hypothesized that dietary NO3? supplementation would attenuate the CHF-induced greater cost of breathing and thus the heightened diaphragm BF during exercise. CHF rats received either 5days of NO3?-rich beetroot (BR) juice (CHF+BR, n=10) or a placebo (CHF, n=10). Respiratory muscle BFs (radiolabeled microspheres) were measured at rest and during submaximal exercise (20m/min, 5% grade). Infarcted left ventricular area and normalized lung weight were not significantly different between groups. During submaximal exercise, diaphragm BF was markedly lower for CHF+BR than CHF (CHF+BR: 195+/-28; CHF: 309+/-71mL/min/100g, p=0.04). The change in diaphragm BF from rest to exercise was less (p=0.047) for CHF+BR than CHF. These findings demonstrate that dietary NO3? supplementation reduces the elevated diaphragm BF during exercise in CHF rats thus providing additional support for this therapeutic intervention in CHF. PMID- 29037772 TI - Family Health Conversations at a Pediatric Oncology Center - A Way for Families to Rebalance the Situation. AB - PURPOSE: The study aimed to describe and understand adult family members' experiences of participating in a Family Health Conversation (FamHC) when a child is diagnosed with cancer. DESIGN AND METHODS: Twelve individual interviews were performed with adult family members who had participated in a FamHC. During the interviews each interviewee was a spokesman for his or her respective family. Thereby the family was included as a system. The interviews were analyzed using a hermeneutic approach. RESULTS: The analysis resulted in four themes: "To unburden the burden," "Seeing things in a new light," "To be seen the way you are," and "Talking to someone who is both within and alongside." Finally an overarching theme evolved, "To rebalance the situation" revealing the meaning of taking part in the FamHC. CONCLUSION: All participants considered the FamHC to be valuable. It was surprising that such a relatively small investment of two family conversations and a closing letter could have such significance for the families in their difficult situation. PRACTICE IMPLICATIONS: With training, clinical nurses can use a well-established structured interview process such as the Family Health Conversation to help family members to gain insight into each other's experiences, which increase their ability to cope and regain control. PMID- 29037773 TI - Use of N-acetylcysteine plus simethicone to improve mucosal visibility during upper GI endoscopy: a double-blind, randomized controlled trial. AB - BACKGROUND AND AIM: Upper GI endoscopy (UGE) is essential for the diagnosis of gastrointestinal diseases. Mucus and bubbles may decrease mucosal visibility. The use of mucolytics could improve visualization. Our aim was to determine whether premedication with simethicone or simethicone plus N-acetylcysteine is effective in improving visibility during UGE. METHODS: This was a randomized, double blinded, placebo-controlled trial with 2 control groups: no intervention and water 100 mL (W); and 3 intervention groups: simethicone 200 mg (S); S + N acetylcysteine (NAC) 500 mg (S+NAC500); and S + NAC 1000 mg (S+NAC1000). The solution was ingested 20 minutes before UGE. Gastric visibility was evaluated in 4 segments with a previously described scale. A score of less than 7 points was defined as adequate visibility (AV). Water volume was used to improve visibility, and adverse reactions were evaluated as a secondary outcome. Multiple group comparison was performed using non-parametric one-way analysis of variance (ANOVA). RESULTS: Two hundred thirty patients were included in the study, 68% female, mean age 49 years. The most common indication for UGE was epigastric pain/dyspepsia (33%). AV was more frequent in the S+NAC500 and S+NAC1000 groups (65% and 67%) compared with no intervention (44%, P = .044) and water (41%, P = .022). The gastric total visibility scale (TVS) was significantly better in the S+NAC500 and S+NAC1000 groups compared with water (P = .03 and P = .008). Simethicone was not different from no intervention and water. S+NAC1000 required less water volume to improve visibility. No adverse reactions from the study drugs were observed. CONCLUSIONS: Premedication with S+NAC500 and S+NAC1000 improves visibility during UGE. The use of simethicone did not show improvements in gastric visibility. TVS was worse in patients using water alone. (Clinical trial registration number: NCT 01653171.). PMID- 29037774 TI - Framework for the quantitative weight-of-evidence analysis of 'omics data for regulatory purposes. AB - A framework for the quantitative weight-of-evidence (QWoE) analysis of 'omics data for regulatory purposes is presented. The QWoE framework encompasses seven steps to evaluate 'omics data (also together with non-'omics data): (1) Hypothesis formulation, identification and weighting of lines of evidence (LoEs). LoEs conjoin different (types of) studies that are used to critically test the hypothesis. As an essential component of the QWoE framework, step 1 includes the development of templates for scoring sheets that predefine scoring criteria with scores of 0-4 to enable a quantitative determination of study quality and data relevance; (2) literature searches and categorisation of studies into the pre defined LoEs; (3) and (4) quantitative assessment of study quality and data relevance using the respective pre-defined scoring sheets for each study; (5) evaluation of LoE-specific strength of evidence based upon the study quality and study relevance scores of the studies conjoined in the respective LoE; (6) integration of the strength of evidence from the individual LoEs to determine the overall strength of evidence; (7) characterisation of uncertainties and conclusion on the QWoE. To put the QWoE framework in practice, case studies are recommended to confirm the relevance of its different steps, or to adapt them as necessary. PMID- 29037775 TI - Neuroendocrine late effects after tailored photon radiotherapy for children with low grade gliomas: Long term correlation with tumour and treatment parameters. AB - PURPOSE: To evaluate neuroendocrine late effects in paediatric patients with low grade glioma (LGG) who underwent radiotherapy. METHODS AND MATERIAL: We performed a retrospective evaluation of 40 children with LGG treated from July 2002 to January 2015 with external radiotherapy. Tumour locations were cerebral hemisphere (n=2); posterior fossa (n=15); hypothalamic-pituitary axis (HPA, n=15); spine (n=5). Three patients presented a diffuse disease. We looked for a correlation between endocrine toxicity and tumour and treatment parameters. The impact of some clinical and demographic factors on endocrinal and neuro toxicity was evaluated using the log-rank test. RESULTS: The median follow-up was 52months (range: 2-151). Median age at irradiation was 6. The dose to the HPA was significantly associated with endocrine toxicity (P value=0.0190). Patients who received chemotherapy before radiotherapy and younger patients, showed worse performance status and lower IQ. The 5-year overall survival (OS) and progression free survival (PFS) rates were 94% and 73.7%, respectively. CONCLUSION: Radiotherapy showed excellent OS and PFS rates and acceptable late neuroendocrine toxicity profile in this population of LGG patients treated over a period of 13years. In our experience, the dose to the HPA was predictive of the risk of late endocrine toxicity. PMID- 29037776 TI - A multicentre 'end to end' dosimetry audit of motion management (4DCT-defined motion envelope) in radiotherapy. AB - PURPOSE: External dosimetry audit is valuable for the assurance of radiotherapy quality. However, motion management has not been rigorously audited, despite its complexity and importance for accuracy. We describe the first end-to-end dosimetry audit for non-SABR (stereotactic ablative body radiotherapy) lung treatments, measuring dose accumulation in a moving target, and assessing adequacy of target dose coverage. MATERIALS AND METHODS: A respiratory motion lung-phantom with custom-designed insert was used. Dose was measured with radiochromic film, employing triple-channel dosimetry and uncertainty reduction. The host's 4DCT scan, outlining and planning techniques were used. Measurements with the phantom static and then moving at treatment delivery separated inherent treatment uncertainties from motion effects. Calculated and measured dose distributions were compared by isodose overlay, gamma analysis, and we introduce the concept of 'dose plane histograms' for clinically relevant interpretation of film dosimetry. RESULTS: 12 radiotherapy centres and 19 plans were audited: conformal, IMRT (intensity modulated radiotherapy) and VMAT (volumetric modulated radiotherapy). Excellent agreement between planned and static-phantom results were seen (mean gamma pass 98.7% at 3% 2 mm). Dose blurring was evident in the moving-phantom measurements (mean gamma pass 88.2% at 3% 2 mm). Planning techniques for motion management were adequate to deliver the intended moving target dose coverage. CONCLUSIONS: A novel, clinically-relevant, end-to-end dosimetry audit of motion management strategies in radiotherapy is reported. PMID- 29037777 TI - Multipotency of skeletal muscle stem cells on their native substrate and the expression of Connexin 43 during adoption of adipogenic and osteogenic fate. AB - Muscle regeneration is performed by resident muscle stem cells called satellite cells (SC). However they are multipotent, being able to adopt adipogenic and osteogenic fate under the correct stimuli. Since SC behavior can be regulated by the extra-cellular matrix, we examined the robustness of the myogenic programme of SC on their native substrate-the surface of a myofiber. We show that the native substrate supports myogenic differentiation judged by the expression of members of the Myogenic Determination Factor (MRF) family. However SC even on their native substrate can be induced into adopting adipogenic or osteogenic fate. Furthermore conditions that support adipose or bone formation inhibit the proliferation of SC progeny as well as their migration. We show that Connexin43 (Cx43), a gap junction complex protein, is only expressed by activated and not quiescent SC. Furthermore, it is not expressed by SC that are in the process of changing their fate. Lastly we show that intact adult mouse muscle contains numerous cells expressing Cx43 and that the density of these cells seems to be related to capillary density. We suggest the Cx43 expression is localized to angioblasts and is more prominent in oxidative slow muscle compared to glycolytic fast muscle. PMID- 29037778 TI - Orientia tsutsugamushi infection in rodents in Anhui Province of China. AB - We conducted an investigation of Orientia tsutsugamushi infection among rodents in non-endemic areas in Anhui Province. Fifty-six (56) rodents including 44 Apodemus agrarius and 12 Niviventer niviventer were trapped and captured in autumn in the fields of three counties in Anhui Province. DNA samples were amplified and sequenced for the 56kDa protein gene of Orientia tsutsugamushi. The overall infection rate in the rodents was 23.2%(13/56). The rate of detection of O. tsutsugamushi in Apodemus agrarius and Niviventer niviventer were 27.3% and 8.3% respectively. Moreover, we identified two genotypes (Karp and Gilliam strains) of Orientia tsutsugamushi in rodents. Our study demonstrated that Apodemus agrarius is the main host for O. tsutsugamushi pathogen and this is the first report of Karp and Gilliam strains in these non-endemic areas in Anhui Province. PMID- 29037780 TI - Bio-based succinate from sucrose: High-resolution 13C metabolic flux analysis and metabolic engineering of the rumen bacterium Basfia succiniciproducens. AB - Succinic acid is a platform chemical of recognized industrial value and accordingly faces a continuous challenge to enable manufacturing from most attractive raw materials. It is mainly produced from glucose, using microbial fermentation. Here, we explore and optimize succinate production from sucrose, a globally applied substrate in biotechnology, using the rumen bacterium Basfia succiniciproducens DD1. As basis of the strain optimization, the yet unknown sucrose metabolism of the microbe was studied, using 13C metabolic flux analyses. When grown in batch culture on sucrose, the bacterium exhibited a high succinate yield of 1molmol-1 and a by-product spectrum, which did not match the expected PTS-mediated sucrose catabolism. This led to the discovery of a fructokinase, involved in sucrose catabolism. The flux approach unraveled that the fructokinase and the fructose PTS both contribute to phosphorylation of the fructose part of sucrose. The contribution of the fructokinase reduces the undesired loss of the succinate precursor PEP into pyruvate and into pyruvate-derived by-products and enables increased succinate production, exclusively via the reductive TCA cycle branch. These findings were used to design superior producers. Mutants, which (i) overexpress the beneficial fructokinase, (II) lack the competing fructose PTS, and (iii) combine both traits, produce significantly more succinate. In a fed batch process, B. succiniciproducens DeltafruA achieved a titer of 71gL-1 succinate and a yield of 2.5molmol-1 from sucrose. PMID- 29037779 TI - 13C metabolic flux analysis of three divergent extremely thermophilic bacteria: Geobacillus sp. LC300, Thermus thermophilus HB8, and Rhodothermus marinus DSM 4252. AB - Thermophilic organisms are being increasingly investigated and applied in metabolic engineering and biotechnology. The distinct metabolic and physiological characteristics of thermophiles, including broad substrate range and high uptake rates, coupled with recent advances in genetic tool development, present unique opportunities for strain engineering. However, poor understanding of the cellular physiology and metabolism of thermophiles has limited the application of systems biology and metabolic engineering tools to these organisms. To address this concern, we applied high resolution 13C metabolic flux analysis to quantify fluxes for three divergent extremely thermophilic bacteria from separate phyla: Geobacillus sp. LC300, Thermus thermophilus HB8, and Rhodothermus marinus DSM 4252. We performed 18 parallel labeling experiments, using all singly labeled glucose tracers for each strain, reconstructed and validated metabolic network models, measured biomass composition, and quantified precise metabolic fluxes for each organism. In the process, we resolved many uncertainties regarding gaps in pathway reconstructions and elucidated how these organisms maintain redox balance and generate energy. Overall, we found that the metabolisms of the three thermophiles were highly distinct, suggesting that adaptation to growth at high temperatures did not favor any particular set of metabolic pathways. All three strains relied heavily on glycolysis and TCA cycle to generate key cellular precursors and cofactors. None of the investigated organisms utilized the Entner Doudoroff pathway and only one strain had an active oxidative pentose phosphate pathway. Taken together, the results from this study provide a solid foundation for future model building and engineering efforts with these and related thermophiles. PMID- 29037781 TI - Uncovering the role of branched-chain amino acid transaminases in Saccharomyces cerevisiae isobutanol biosynthesis. AB - Isobutanol and other branched-chain higher alcohols (BCHAs) are promising advanced biofuels derived from the degradation of branched-chain amino acids (BCAAs). The yeast Saccharomyces cerevisiae is a particularly attractive host for the production of BCHAs due to its high tolerance to alcohols and prevalent use in the bioethanol industry. Degradation of BCAAs begins with transamination reactions, catalyzed by branched-chain amino acid transaminases (BCATs) located in the mitochondria (Bat1p) and cytosol (Bat2p). However, the roles that these transaminases play in isobutanol production remain poorly understood and obscured by conflicting reports in the literature. In this work, we elucidate the influence of BCATs on isobutanol production in two genetic backgrounds (CEN.PK2 1C and BY4741). In the process, we uncover and characterize two competing isobutanol pathways, which can be manipulated by overexpressing or deleting BAT1 or BAT2, and adding or removing valine from the fermentation media. We show that deletion of BAT1 alone increases isobutanol production by 14.2-fold over wild type strains in media lacking valine, and examine how interactions between valine and the regulatory protein Ilv6p affect isobutanol production. Compartmentalizing the five-gene isobutanol biosynthetic pathway in mitochondria of BAT1 deletion strains results in an additional 2.1-fold increase in isobutanol production in the absence of valine. While valine inhibits isobutanol production, it boosts 2 methyl-1-butanol production. This work clarifies the role of transamination activity in BCHA biosynthesis, and develops valuable strategies and strains for future optimization of isobutanol production. PMID- 29037782 TI - Paeoniflorin targets apoptosis and ameliorates fibrosis in murine schistosomiasis mansoni: A novel insight. AB - Schistosomiasis is a chronic helminthic disease causing hepatic fibrosis. Some studies demonstrated direct effect of targeting apoptosis on fibrosis regression. This study is a novel trial of Paeoniflorin (PAE) on S. mansoni induced hepatic fibrosis in murine model compared to Praziquantel (PZQ) evaluating their anti parasitic and anti-fibrotic properties aiming to discover a new therapy that decrease schistosomiasis morbidity. Thirty two laboratory bred Swiss albino male CD-1 mice were used in this study. The mice were classified into four groups (8 mice each), control healthy, control infected, PZQ treated (300 mg/kg/12 h), PAE treated (50 mg/kg/d) groups. All mice groups were sacrificed 15 weeks post infection for assessment of drugs efficacy by parasitological, histopathological, immunohistochemical and serological studies. Our results showed that PAE improved the parasitological parameters including decrease worm burden, immature, mature eggs and increase dead ones yet, still PZQ had the upper hand in this aspect. However, PAE exceeded PZQ as an anti-fibrotic therapy seemed in marked decrease in hepatic mean granuloma diameter and fibrosis area, besides, marked increase in serum tumor necrosis factor-alpha; TNF-alpha level, caspase-3 and P53 apoptotic expressions. There was marked decrease in serum IL-13 level, nuclear factor-kappa B; NF-kB, Transforming Growth Factor-Beta1; TGF-beta1, Alpha-Smooth Muscle Actin; alpha-SMA fibrotic expressions. Conclusively, PAE could be an anti schistosomiasis mansoni therapy exceeding PZQ in targeting apoptosis and ameliorating fibrosis. This study provides a perspective for a novel therapeutic approach to prevent liver fibrosis following liver injury due to schistosomiasis mansoni. PMID- 29037783 TI - Suppression of nemo-like kinase by miR-71 in Echinococcus multilocularis. AB - Echinococcus multilocularis metacestodes are a causative pathogen for alveolar echinococcosis in human beings, and have been found to express miRNAs including emu-miR-71. miR-71 is evolutionarily conserved and highly expressed across platyhelminths, but little is known about its role. Here it was shown that emu miR-71 was differentially expressed in protoscoleces and was unlikely to be expressed in neoblasts. The results of the luciferase assay indicated that emu miR-71 was able to bind in vitro to the 3'-UTR of emu-nlk, encoding a key regulator of cell division, causing significant downregulation of luciferase activity (p < 0.01) compared to the negative control and the construct with mutations in the binding site. Consistent with the decreased luciferase activity, transfection of emu-miR-71 mimics into protoscoleces notably repressed emu-NLK (p < 0.05). These results demonstrate the suppression of emu-nlk by emu-miR-71, potentially involved in the protoscolex development. PMID- 29037784 TI - The influence of registered nurses and nurse practitioners on patient experience with primary care: results from the Canadian QUALICO-PC study. AB - Nurses, whether registered nurses (RNs) or nurse practitioners (NPs), are becoming key providers of primary care services. While evidence for the influence of NPs on patient experience in primary care is mounting, this is less so for RNs. We use the Canadian component of the international Quality and Costs of Primary Care 2013/14 survey to investigate the mechanisms by which nurses can affect patients' experience in primary care, focusing on accessibility and appropriateness of care. The data allow us to distinguish between family practice RNs, specialised RNs and NPs, and covers all types of patients visiting a primary care clinic in a variety of contexts in all Canadian provinces. In addition to the types of nurses and full-time equivalent (FTE) numbers, we explore the role of nurse autonomy and collaboration. Our regression results show that one of the most important predictors of patient experience is the collaboration between health professionals, whereas nurse staffing in terms of FTE numbers has little influence by itself. Different types of nurses influence different dimensions of accessibility, and the association between patient experience and nurse staffing depends on the number of physicians in the clinic. Our results can inform decision-makers on how to strengthen primary care provision, and particularly in Canadian context, the adaptation of the recently implemented interprofessional primary care teams. PMID- 29037785 TI - Novel bilayer dissolving microneedle arrays with concentrated PLGA nano microparticles for targeted intradermal delivery: Proof of concept. AB - Polymeric microneedle (MN) arrays continue to receive growing attention due to their ability to bypass the skin's stratum corneum barrier in a minimally invasive fashion and achieve enhanced transdermal drug delivery and "targeted" intradermal vaccine administration. In this research work, we fabricated biodegradable bilayer MN arrays containing nano - microparticles for targeted and sustained intradermal drug delivery. For this study, model drug (vitamin D3, VD3) loaded PLGA nano- and microparticles (NMP) were prepared by a single emulsion solvent evaporation method with 72.8% encapsulation of VD3. The prepared NMP were directly mixed 20% w/v poly(vinyl pyrrolidone) (PVP) gel, with the mixture filled into laser engineered micromoulds by high-speed centrifugation (30min) to concentrate NMP into MN shafts. The particle size of PLGA NMP ranged from 300nm to 3.5MUm and they retained their particle size after moulding of bilayer MN arrays. The relatively wide particle size distribution of PLGA NMP was shown to be important in producing a compact structure in bilayer conical, as well as pyramidal, MN, as confirmed by scanning electron microscopy. The drug release profile from PLGA NMP was tri-phasic, being sustained over 5days. The height of bilayer MN arrays was influenced by the weight ratio of NMP and 20% w/v PVP. Good mechanical and insertion profiles (into a skin simulant and excised neonatal porcine skin) were confirmed by texture analysis and optical coherence tomography, respectively. Ex vivo intradermal neonatal porcine skin penetration of VD3 NMP from bilayer MN was quantitatively analysed after cryostatic skin sectioning, with 74.2+/-9.18% of VD3 loading delivered intradermally. The two stage novel processing strategy developed here provides a simple and easy method for localising particulate delivery systems into dissolving MN. Such systems may serve as promising means for controlled transdermal delivery and targeted intradermal administration. PMID- 29037786 TI - Changes in Postural Sway After a Single Global Postural Reeducation Session in University Students: A Randomized Controlled Trial. AB - OBJECTIVE: The purpose of this study was to assess the effectiveness of a single session of global postural reeducation (GPR) in postural sway in young adult university students who use data visualization screens. METHODS: A randomized controlled trial with 2 parallel groups was performed. Sixty-four subjects were randomized in the experimental group (12 men and 20 women) who underwent the GPR session, and a control group (13 men and 19 women) that did not receive any intervention was included. Center of pressure (COP) was assessed using a stabilometric platform, with eyes open and eyes closed before, immediately after, 48 hours after, and 7 days after intervention in both groups. RESULTS: In the interaction of time and gender, statistically significant differences were found for the area covered by COP (P = .020) and for the standard deviation (SD) in the mediolateral axis (P = .035). Considering the complete interaction time, gender, and group, statistically significant differences were found (P = .015) for the anteroposterior rate covered by COP and the SD in the anteroposterior axis (P = .033). In eyes closed condition, the intersubject analysis showed statistically significant differences for the interaction between group and gender for the variable mediolateral SD (P = .043). Considering the interaction of time with group, statistically significant differences were found for full length covered by COP (P = .017). CONCLUSIONS: Changes in postural sway were observed after a single GPR session, mainly at 48 hours, with different behaviors between men and women. PMID- 29037787 TI - The Relationship Between Spinal Pain and Comorbidity: A Cross-sectional Analysis of 579 Community-Dwelling, Older Australian Women. AB - OBJECTIVES: The aims of this study were to (1) report the prevalence and explore the influence of spinal pain on quality of life and (2) assess the relationship between spinal pain and the type and number of comorbidities. METHODS: This cross sectional study comprised 579 community-dwelling, older Australian women. Women had "spinal pain" if they marked "yes" to neck pain, upper back pain, mid-back pain, and/or lower back pain. Descriptive statistics and binary logistic regression were performed to report the prevalence and explore the relationship between spinal pain and the type and number of comorbidities. RESULTS: A majority of women (55.8%) who returned surveys had spinal pain. Women with spinal pain had significantly lower physical and mental quality of life scores than women without spinal pain (Medical Outcomes Study: 36 Item Short Form Survey [SF-36] physical component summary: 40.1 +/- 11.1 vs 49.0 +/- 9.0, and SF-36 mental component summary: 50.0 +/- 10.5 vs 53.9 +/- 8.2, respectively). Having spinal pain was significantly associated with overweight and obesity (odds ratio 1.98 [95% confidence interval 1.3-2.96] and 2.12 [1.37-3.28]), diabetes (1.93 [1.01-3.67]), pulmonary comorbidity (1.66 [1.04-2.65]), and cardiovascular comorbidity (1.57 [1.07-2.28]). More than half of the women with spinal pain reported 2 or more comorbidities, with comorbidities significantly more common among women with spinal pain than among women without spinal pain. The odds of having spinal pain increased with an increasing number of comorbidities (2 comorbidities: 2.44 [1.47 4.04], 3 comorbidities: 3.07 [1.66-5.67], 4 comorbidities: 5.05 [1.64-15.54]). CONCLUSIONS: Spinal pain is common in community-dwelling, older Australian women and is associated with greater disability and poorer quality of life. Diabetes, cardiovascular disease, pulmonary disease, and obesity appear to have a relationship with spinal pain. There was an incremental increase in the risk of spinal pain associated with increasing comorbidity count. PMID- 29037788 TI - [Primary care evaluation of the hypertensive patient management in specialized care after derivation (DERIVA-2 Study)]. AB - INTRODUCTION: To know the opinion/evaluation of the primary care physicians (PCPH) of the received information about patients that were attended in specialized care (SC). DESIGN: Cross-sectional study. LOCATION: Performed nationwide in primary care centers. PARTICIPANTS: Researchers from the primary care network. METHODS: We used the SEH-LELHA derivation criteria guidelines, plus an ad hoc survey that included demographic and anthropometric data, blood pressure levels, and the main reason for derivation to SC at the baseline and final (post-derivation) visit. In addition, time deployed for the study of every patient, changes in diagnosis and treatment, type of follow-up, issues throughout the derivation process and assessment of the medical referred to the PCPH were evaluated. RESULTS: With participation of 578 researchers from primary, the study included 1715 patients aged 60.7+/-13.3years, 62.7% male. Patients were taking 2.3+/-1.2 (range 0-10) antihypertensive drugs pre-referral and 2.5+/-1.2 (0-9) after derivation. Blood pressure levels changed from 166+/-21.6 /97.7+/-12.6mmHg to 143+/-14.4 /85.5+/-10.5mmHg. The number of controlled patients (BP<140 and <90mmHg) increased from 5.8% to 32.2%. Time between pre- and post-derivation visit was 72+/-64days (median 57days, IQ26-99). The PCPH received a medical report in 80.3% of cases, 76.9% with an explanation of the results of the complementary tests, 75.8% with additional information or a reasoning of treatment and in 71% of cases information about the patient future management. 63% of PCPH were fully agreed with the management of the specialist, 29% agree and 2% strongly disagree. The derivation was evaluated as effective or very effective in 86% of patients and no effective in 9%. CONCLUSIONS: Communication between AE and SC in HTA is valued satisfactorily by MAP. However there is still room for improvement in the process. PMID- 29037789 TI - Transcranial brain stimulation for the treatment of tinnitus: Positive lessons from a negative trial. PMID- 29037790 TI - Glucocorticoid receptor in rat nucleus accumbens: Its roles in propofol addictions. AB - Propofol has been demonstrated as a drug of abuse in humans. Our previous study indicated that dexamethasone, a potent agonist of glucocorticoid receptor (GR), inhibited propofol-maintained rat self-administration behaviors by systematic injection. However, the direct effect of GR in the nucleus accumbens (NAc) on propofol self-administration behavior has not been explored. The propofol maintained self-administration was established in rats after a successive 3-h daily self-administration of propofol for 14days. On day 15, 30min prior to the last training, rats received one of three doses (0.3, 1.0, or 3.0MUg/site) of dexamethasone or vehicle via intra-NAc injection. The number of active nose-poke responses, propofol injections, and inactive nose-poke responses was recorded. Dopamine D1 receptor and c-Fos expressions were detected. Plasma corticosterone level was measured by enzyme-linked immunosorbent assay. Intra-NAc administration of dexamethasone (1.0 and 3.0MUg/site) facilitated the active nose-poke responses, which was accompanied by the upregulation of D1 receptor and c-Fos in the NAc. Plasma corticosterone level was not changed in dexamethasone-treated groups. This study provides crucial evidence that GR in the NAc plays an important role in regulating propofol self-administration behaviors in rats, which may be mediated by changes in D1 receptor and c-Fos expressions, and this also needs further examination with GR antagonist in the future. PMID- 29037791 TI - Effect of optogenetic modulation on entopeduncular input affects thalamic discharge and behavior in an AAV2-alpha-synuclein-induced hemiparkinson rat model. AB - OBJECTIVE: Neuromodulation of the globus pallidus internus(GPi) alleviates Parkinson's disease symptoms. The primate GPi is homologous to the rat entopeduncular nucleus (EP). The aim of the present study was to determine if optogenetic modulation of the EP could alter parkinsonian behavior or thalamic discharge in a hemiparkinson rat model. METHODS: We injected an adeno-associated virus type-2 expressing alpha-synuclein (AAV2-alpha-syn) into the substantia nigra pars compacta (SNc) of the right hemisphere and confirmed parkinsonian behavior using an amphetamine-induced rotation test. Then we injected activated or inhibited neurons, using the channelrhodopsin2 (ChR2)/halorhodopsin (NpHR) system in the EP of the hemiparkinson rat model and examined downstream effects in vivo. We assessed alterations in parkinsonian behaviors using the stepping and cylinder tests before, during, and after optogenetic stimulation. RESULTS: Importantly, optogenetic inhibition of the EP improved parkinsonian motor behaviors. When we monitored thalamic neuronal activity following optogenetic neuromodulation in vivo, and we observed alterations in thalamic discharge The thalamic neuronal activity is increased for optogenetic inhibition stimulation, whereas decreased for optogenetic activation stimulation. CONCLUSIONS: Taken together, our data demonstrate that optical neuromodulation of the EP can successfully control contralateral forelimb movement and thalamic discharge in an AAV2-alpha-synuclein-induced hemiparkinson rat model. PMID- 29037792 TI - Spatial-temporal expression of NDRG2 in brain tissues in a rat model of intracerebral hemorrhage: A pilot study. AB - N-myc downstream regulated gene 2 (NDRG2) was a member of the N-myc down regulated gene family which belongs to the alpha/beta hydrolase superfamily and played important roles in cell death. To date, the expression and effects of NDRG2 in brain after intracerebral hemorrhage (ICH) are unclear. In this study, we investigated the spatial-temporal expression of NDRG2 in brain tissues in a rat model of ICH. The expression levels of NDRG2 were tested in 3h, 6h, 12h, 24h, 48h, 72h, and 7d after ICH by western blot analysis. The results showed that the NDRG2 levels were increased and peaked at 24h after ICH, and then declined subsequently. Meanwhile, we also examined the NDRG2 cellular localization in brain tissues by immunofluorescence analysis with NeuN and GFAP (biomarker of neuron and astrocytes respectively). The results demonstrated that NDRG2 was mainly expressed in astrocytes, but not neurons, after ICH. Additionally, the results of double staining indicated that the rate of NDRG2- and TUNEL -positive cells was significantly higher in the brain tissues in rats after ICH. The roles of NDRG2 in ICH needed further investigation and inhibiting the expression of NDRG2 may have potential therapeutic effects in ICH. PMID- 29037793 TI - Transcranial direct current stimulation of the rLPFC shifts normative judgments in voluntary cooperation. AB - Normative judgment is a key capacity for human social norm compliance. Previous studies have revealed that the right lateral prefrontal cortex (rLPFC) is closely related to social norm compliance and that it has proven stimulation effects on behavior in voluntary and sanction-induced norm compliance, but not normative judgments. Nearly all these studies have been based on sanction-induced coordination cooperation, and a number of them have found that rLPFC has no effect on normative judgment with transcranial direct current stimulation (tDCS). However, no research study exists regarding the effects of the normative judgment in voluntary cooperation. In this study, we used a linear asymmetric public good game to investigate the role of normative judgment in voluntary cooperation with tDCS on rLPFC. Participants were engaged in anonymous social interactions and made decisions with real financial consequences after being randomly assigned to receive either anodal, cathodal, or sham stimulation of 15min. Results suggest that compared with the sham group, anodal/cathodal tDCS influenced the behavior and normative judgment of participants in opposite directions. These outcomes provide a neural evidence for the rLPFC mechanism on normative judgment in voluntary cooperation. PMID- 29037794 TI - Ventricular Performance is Associated with Need for Extracorporeal Membrane Oxygenation in Newborns with Congenital Diaphragmatic Hernia. AB - OBJECTIVE: To compare echocardiography (ECHO) findings of patients with congenital diaphragmatic hernia (CDH) who required extracorporeal membrane oxygenation (ECMO) to non-ECMO treated patients. STUDY DESIGN: We reviewed clinical and ECHO data of newborns with CDH born between 2009 and 2016. Exclusions included major anomalies, genetic syndromes, or no ECHO prior to ECMO. Pulmonary hypertension was assessed by ductal shunting and tricuspid regurgitant jet. Speckle tracking echocardiography (STE) assessed function by quantifying deformation. RESULTS: Patients with CDH (15 ECMO and 29 with no ECMO) were analyzed. Most patients had a left CDH (88.6%). Age at ECHO was similar between groups. Outborn status (P = .009) and liver position (P = .009) were associated with need for ECMO. Compared with non-ECMO patients, patients who required ECMO had significantly decreased left and right ventricular function by both conventional and STE measures, as well as decreased right and left ventricular output. The right ventricular eccentricity index was higher in ECMO vs non-ECMO patients (2.2 vs 1.8, P = .02). There was no difference in pulmonary hypertension between CDH groups. CONCLUSIONS: Need for ECMO was associated with decreased left and right ventricular function, as assessed by standard and STE measures. There was no difference in pulmonary hypertension between non ECMO and ECMO patients. Abnormal cardiac function may explain nonresponse to pulmonary vasodilators in patients with CDH. Management strategies to improve cardiac function may reduce the need for ECMO in newborns with CDH. PMID- 29037795 TI - The Burden of Hospital Readmissions among Pediatric Patients with Inflammatory Bowel Disease. AB - OBJECTIVE: To evaluate the burden and predictors of hospital readmissions among pediatric patients with inflammatory bowel disease using the Nationwide Readmissions Database. STUDY DESIGN: We performed a retrospective cohort study using 2013 Nationwide Readmissions Database. International Classification of Diseases, Ninth Revision, Clinical Modification codes were used to identify patients <18 years with diagnoses of ulcerative colitis (UC) or Crohn's disease (CD). Demographic factors and details of hospitalizations were evaluated using survey procedures in SAS v 9.4 (SAS Institute, Cary, North Carolina). Multivariable logistic regression was used to estimate ORs and 95% CIs of readmission. RESULTS: Among 2733 hospitalizations (63% CD, 37% UC), 611 (22%) patients were readmitted within 90 days of the index hospitalization. Readmission resulted in weighted estimates of 11 440 excess days of hospitalization and total charges of over $107 million. For CD, male sex (aOR 1.36, 95% CI 1.03-1.81) and co-existing anxiety or depression (aOR 1.89, 95% CI 1.06-3.40) were associated with increased readmissions, while patients who underwent surgery had decreased readmissions (aOR 0.40, 95% CI 0.24-0.65). In patients with UC, an index admission of >7 days was associated with increased readmissions (aOR 1.69, 95% CI 1.09-2.62). CONCLUSIONS: Readmission occurs frequently in children with inflammatory bowel disease and is associated with significant cost and resource burdens. Among patients with CD, psychiatric comorbidities such as anxiety and depression are apparent drivers of readmission. PMID- 29037796 TI - Salivary Cortisol Levels Predict Therapeutic Response to a Sleep-Promoting Method in Children with Postural Tachycardia Syndrome. AB - OBJECTIVE: To determine the value of salivary cortisol concentrations in predicting the efficacy of sleep-promoting treatment in children with postural tachycardia syndrome (POTS). STUDY DESIGN: This prospective study involved 40 children with POTS and 20 healthy children (controls). POTS was diagnosed using the head-up or head-up tilt test. Patients with POTS received a sleep-promoting treatment: >8 hours of sleep every night and a midday nap in an appropriate environment; no drinking water or exercising before bedtime; and urination before bedtime. The Pittsburgh Sleep Quality Index was used to evaluate sleep quality, and symptom scores were used to assess POTS severity. Salivary samples were collected upon awakening, 30 minutes after awakening, at 12:00 p.m., 4:00 p.m., and 8:00 p.m., and at bedtime before treatment. Enzyme-linked immunosorbent assay was used to measure salivary cortisol concentrations. RESULTS: Cortisol concentrations were significantly higher in patients with POTS than in the controls at all time points (P < .05 for all). PSQI scores were significantly higher in patients with POTS (7.2 +/- 3.0) than in the controls (1.35 +/- 1.39; t = -10.370, P <.001). Salivary cortisol concentrations at awakening were significantly higher in responders than in nonresponders (4.83 +/- 0.73 vs 4.05 +/- 0.79 ng/mL, t = -3.197, P = .003). The area under the receiver operating characteristic curve was 75.8%, (95% CI 59.3%-92%). Cut-off at-awakening salivary cortisol concentrations of >4.1 ng/mL yielded 83.3% sensitivity and 68.7% specificity in predicting therapeutic efficacy. CONCLUSIONS: At-awakening salivary cortisol concentrations may predict the efficacy of sleep-promoting treatment in patients with POTS. PMID- 29037797 TI - Flow cytometric characterization of encystation in Entamoeba invadens. AB - Entamoeba histolytica causes dysentery and liver abscess mostly in countries that lack proper sanitation. Infection is acquired by ingestion of the cyst form in contaminated food or water. E. histolytica does not encyst in vitro; thus, E. invadens, a reptilian parasite that encysts in vitro, has been used as a surrogate. Cysts are small and possess chitin-rich walls. These are characteristics that may be exploited by flow cytometry. We stained encysting E. invadens cells with a fluorescent chitin stain, and analyzed fluorescence and forward scatter by flow cytometry. We demonstrate that flow cytometry can be used to track differentiation, reveal unique cell populations, and evaluate encystation inhibitors. PMID- 29037798 TI - Electroencephalographic assessment of oral meloxicam, topical anaesthetic cream and cautery iron for mitigating acute pain in pigs (Sus scrofa) undergoing tail docking. AB - OBJECTIVE: To evaluate the efficacy of oral meloxicam, topical anaesthetic cream and cautery iron in mitigating acute nociceptive responses of pigs to tail docking. STUDY DESIGN: A prospective, randomized, controlled experimental study. ANIMALS: A total of 40 healthy Large WhitexLandrace pigs aged 21+/-1 days, weighing 6.1+/-0.9 kg. METHODS: Pigs were randomly assigned to one of four treatments (n=10 per treatment): CONTROL: docked using clippers without analgesia; MEL: docked using clippers after administration of oral meloxicam; EMLA: docked using clippers after application of topical anaesthetic cream; and CAUT: docked using a cautery iron without analgesia. Anaesthesia was induced and maintained with halothane in oxygen. Following induction, end-tidal halothane was stabilized at 0.95-1.05% and electroencephalograph (EEG) recording commenced. After 5 minutes of baseline data collection, tail docking was performed and recording continued for a further 10 minutes. The EEG summary variables median frequency (F50), 95% spectral edge frequency (F95) and total power (PTOT) were calculated for the baseline period and for consecutive 30-second intervals following docking. RESULTS: Following docking, F50 increased and PTOT decreased significantly in CONTROL and MEL pigs. EMLA pigs exhibited no change in any variable, whilst CAUT pigs exhibited a reduction in PTOT but no change in F50. F50 was higher in control pigs than in EMLA pigs 30-60 seconds after docking (p<=0.01). PTOT was lower in CONTROL than in EMLA pigs 30-90 seconds after docking (p<0.03) and in CAUT pigs 60 seconds after docking (p=0.01). CONCLUSIONS AND CLINICAL RELEVANCE: Prior application of EMLA cream abolished EEG indicators of nociception in pigs docked using clippers. Docking using a cautery iron without analgesia ameliorated EEG indicators of nociception, relative to using clippers without analgesia. Prior administration of EMLA cream or the use of cautery instead of clippers may reduce the acute pain experienced by pigs undergoing tail docking. PMID- 29037799 TI - Thermography as an early predictive measurement for evaluating epidural and femoral-sciatic block success in dogs. AB - OBJECTIVE: To evaluate skin temperature increase as an early predictive measure for evaluating epidural and femoral-sciatic block success in dogs. STUDY DESIGN: Prospective clinical trial. ANIMALS: A total of 29 dogs undergoing orthopaedic surgery on one hindlimb. METHODS: Dogs were anaesthetized and placed into lateral recumbency with the affected limb uppermost and the coat was clipped. Baseline infrared thermographic images (T0) of the affected limb, of the paw pad of the affected leg and of the ipsilateral paw pad were taken. Subsequently, dogs were administered either an epidural (EPI; n=11) or a femoral-sciatic block (FS; n=18) using bupivacaine 1 mg kg-1. Then, 2 minutes after placement of the block, thermographic images were obtained every 3 minutes for a total of four measurements (T1-T4) and surgery was commenced. Rescue analgesia consisting of fentanyl 1 MUg kg-1 was administered if needed. A regional block was considered successful if the dose of fentanyl administered was less than the lower 95% confidence interval of the geometric mean of the total fentanyl used in each group. A >= 1 degrees C increase of skin temperature was considered as the minimum increase required for detection of a successful block. RESULTS: A total of 12 out of 18 blocks in the FS and eight of 11 in the EPI group were considered successful based on fentanyl consumption. Out of these, only four of 12 in the FS and one of eight in the EPI group developed an increase in temperature of >= 1 degrees C. Contrarily, four of six of the nonsuccessful cases in the FS and three of three in the EPI group developed an increase in temperature of >= 1 degrees C. CONCLUSIONS AND CLINICAL RELEVANCE: Contrary to reports in humans, thermography did not indicate regional block success prior to surgery in dogs. However further studies under more controlled conditions are needed to determine whether thermography can be used to indicate failure of regional blockade. PMID- 29037800 TI - Clinical comparison of dexmedetomidine and medetomidine for isoflurane balanced anaesthesia in horses. AB - OBJECTIVE: To compare the effects of two balanced anaesthetic protocols (isoflurane-dexmedetomidine versus medetomidine) on sedation, cardiopulmonary function and recovery in horses. STUDY DESIGN: Prospective, blinded, randomized clinical study. ANIMALS: Sixty healthy adult warm blood horses undergoing elective surgery. METHODS: Thirty horses each were sedated with dexmedetomidine 3.5 MUg kg-1 (group DEX) or medetomidine 7 MUg kg-1 (group MED) intravenously. After assessing and supplementing sedation if necessary, anaesthesia was induced with ketamine/diazepam and maintained with isoflurane in oxygen/air and dexmedetomidine 1.75 MUg kg-1 hour-1 or medetomidine 3.5 MUg kg-1 hour-1. Ringer's lactate (7-10 mL kg-1 hour-1) and dobutamine were administered to maintain normotension. Controlled mechanical ventilation maintained end-tidal expired carbon dioxide pressures at 40-50 mmHg (5.3-6.7 kPa). Heart rate, invasive arterial blood pressure, inspired and expired gas composition and arterial blood gases were measured. Dexmedetomidine 1 MUg kg-1 or medetomidine 2 MUg kg-1 was administered for timed and scored recovery phase. Data were analysed using two-way repeated-measures analysis of variance and chi-square test. Significance was considered when p<=0.05. RESULTS: In group DEX, significantly more horses (n=18) did not fulfil the sedation criteria prior to induction and received one or more supplemental doses, whereas in group MED only two horses needed one additional bolus. Median (range) total sedation doses were dexmedetomidine 4 (4-9) MUg kg-1 or medetomidine 7 (7-9) MUg kg-1. During general anaesthesia, cardiopulmonary parameters did not differ significantly between groups. Recovery scores in group DEX were significantly better than in group MED. CONCLUSIONS AND CLINICAL RELEVANCE: Horses administered dexmedetomidine required more than 50% of the medetomidine dose to reach equivalent sedation. During isoflurane anaesthesia, cardiopulmonary function was comparable between the two groups. Recovery scores following dexmedetomidine were better compared to medetomidine. PMID- 29037801 TI - Validation of noninvasive blood pressure equipment: which peripheral artery is best for comparison studies in dogs? AB - OBJECTIVES: 1) To determine which peripheral artery commonly used for invasive arterial blood pressure (IBP) monitoring yields the least bias when compared with noninvasive blood pressure (NIBP) values obtained at the antebrachium of the dog, and 2) to identify and describe differences in systolic (SAP), mean (MAP) and diastolic arterial pressures (DAP) among different anatomical locations. STUDY DESIGN: Prospective experimental study. ANIMALS: Twenty adult hound dogs weighing 24.5 +/- 1.1 kg (mean +/- standard deviation). METHODS: Four peripheral arteries dorsal pedal, median caudal, intermediate auricular and superficial palmar arteries-were catheterized with 20 gauge, 3.8 cm catheters. One NIBP cuff was placed in the middle third of the antebrachium. Four sets of IBP and NIBP measurements were simultaneously collected every 2 minutes. A linear mixed model was performed to analyze the collected data. RESULTS: IBP values varied depending on the arterial catheterization site. The difference was greater for SAP. NIBP measured at the antebrachium had the best agreement with IBP measured at the median caudal artery. CONCLUSION AND CLINICAL RELEVANCE: IBP varies among anatomical locations. The smallest bias and narrowest limits of agreement were obtained at the median caudal artery, providing the best overall agreement with the equipment studied. The median caudal artery may be the preferable anatomical location for clinical comparison studies between IBP and NIBP in dogs when the cuff is on the antebrachium. PMID- 29037802 TI - The impact of inoculum size on the activity of cefoperazone-sulbactam against multidrug resistant organisms. AB - OBJECTIVES: This study aims to assess the in vitro activity of cefoperazone alone and different cefoperazone-sulbactam ratios against different inoculum sizes of multidrug resistant organisms. METHODS: Minimum inhibitory concentrations (MICs) of cefoperazone, cefoperazone-sulbactam at fixed ratio of 1:1 and 2:1 against a normal inoculum size of 5 * 105 CFU/ml and a high inoculum size of 5 * 107 CFU/ml were measured. RESULTS: Each 33 isolates of extended-spectrum beta-lactamases (ESBL)-producing Escherichia coli, ESBL-producing Klebsiella pneumoniae, carbapenem-resistant E. coli, and carbapenem-resistant Pseudomonas aeruginosa and a total of 122 isolates of carbapenem-resistant Acinetobacter baumannii were collected. After the addition of sulbactam at a 1:1 ratio, most MIC50 and MIC90 values decreased. Cefoperazone-sulbactam at a 1:1 ratio had a higher susceptibility rate against ESBL-producing E. coli, carbapenem-resistant E. coli, and carbapenem-resistant A. baumannii than cefoperazone-sulbactam at a 2:1 ratio (all P < 0.05). For ESBL-producing E. coli, the susceptibility rate of cefoperazone-sulbactam at ratios of (1:1) and (2:1) decreased from 97.0 to 87.9% and 90.9 to 60.6%, for normal to high inoculum, respectively. For ESBL-producing K. pneumoniae, both susceptibility rate of cefoperazone-sulbactam at ratios of (1:1) and (2:1) decreased from 75.8%, and 63.6% at normal inoculum to 51.5% and 42.4% at high inoculum. CONCLUSIONS: Cefoperazone-sulbactam at a 1:1 ratio has greater in vitro activity against most multidrug resistant organisms than cefoperazone-sulbactam at a 2:1 ratio. Such combinations were not influenced by the inoculum size of ESBL-producing E. coli and K. pneumoniae and could be a therapeutic option for treating severe infections. PMID- 29037803 TI - Prognostic significance and biopsy characteristics of prostate cancer with seminal vesicle invasion on radical prostatectomy: a nationwide population-based study. AB - The objective of this study was to evaluate the prognostic significance of seminal vesicle invasion (SVI, pT3b) compared with extraprostatic extension (EPE) alone (pT3a) after radical prostatectomy, and to correlate pre-operative biopsy pathology with SVI and EPE. The National Prostate Cancer Register includes all prostate cancers diagnosed in Sweden. We analysed 4063 cases with stage category pT3a and 1371 cases with pT3b at radical prostatectomy between 2000 and 2012. Associations between pT3a and pT3b and progression were evaluated and adjusted for year, age, biopsy grade and s-PSA. Needle biopsy findings in these stages were compared. Patients with pT3b (n=1371) had a higher risk of death from prostate cancer (HR 2.3, 95% CI 1.5-3.3, p<0.001) and death from any cause (HR 1.5, 95% CI 1.2-1.8, p<0.001) than those with pT3a (n=4063). They were also more likely to be treated with post-operative radiotherapy (HR 1.5, 95% CI 1.4-1.7, p<0.001) or androgen deprivation therapy (HR 3.0, 95% CI 2.5-3.7, p<0.001), indicating clinical progression. Yet, disease-specific survival of patients with stage pT3b was 94% after 6 years. Median cancer extent in pre-operative biopsies of pT3a and pT3b was 14 and 24 mm (p<0.001), number of positive cores was four and five, (p<0.001) and biopsy Gleason score was 8-10 in 11.6% and 27.3%, respectively (p<0.001). SVI of prostate cancer is associated with worse outcome after radical prostatectomy than EPE alone. However, few patients with SVI die within 6 years from surgery, suggesting that radical prostatectomy may be curative in locally advanced cancers. PMID- 29037804 TI - Fluorescence in situ hybridisation as an ancillary tool in the diagnosis of acral melanoma: a review of 44 cases. AB - Acral melanoma is associated with outcomes which are more unfavourable than those of other melanoma subtypes, and acral melanoma has higher mortality. However, histological distinction of acral melanoma from acral naevi may be difficult. Fluorescence in situ hybridisation (FISH) targeting specific genes has been used as an ancillary method for differential diagnosis of melanocytic tumours, but most previous studies have focused on non-acral lesions which may have genetic alterations different from acral lesions. We evaluated use of multi-site FISH in the diagnosis of acral melanoma in a series of 82 acral melanocytic tumours. Two probe groups were applied. Probe set 1 involved a 4-probe FISH targeting 6p25 (RREB1), CEP6 (centromere 6), 6q23 (MYB) and 11q13 (CCND1). Probe set 2 involved a 3-probe FISH targeting 8q24 (MYC), 9p21 (CDKN2A) and CEP9 (centromere 9). In 44 primary acral melanomas, sensitivity was 70.5% (31/44) using probe set 1 alone, and 59.1% (26/44) using probe set 2 alone. When both probe sets were combined, sensitivity increased to 88.6% (39/44). The frequency of each gene alteration was as follows: MYC gain in 54.5% cases (24/44), RREB1 gain in 52.3% cases (23/44), CCND1 gain in 45.4% cases (20/44), MYB loss relative to CEP6 in 25.0% cases (11/44), and CDKN2A homozygous deletion in 20.5% cases (9/44). For lesions with both in situ and invasive disease, FISH findings in these two components were similar. No gene alterations were detected in any of 36 benign acral naevi. In this study FISH exhibited sensitivity and specificity in diagnosis of acral melanoma which allows its application as an auxiliary diagnostic test in acral melanocytic tumours. PMID- 29037805 TI - Tolerance and toxicity of the PARP inhibitor olaparib in older women with epithelial ovarian cancer. AB - OBJECTIVES: The objective of this study was to determine the overall tolerability and toxicity of olaparib capsules among older (>=65years) patients with recurrent ovarian cancer treated on 8 completed prospective trials of olaparib. METHODS: An ancillary data analysis of 398 patients with recurrent ovarian cancer enrolled on eight prospective trials of olaparib capsules was performed. Patients aged 65years and older were stratified into age groups by 5year increments (ages 65 69, 70-74, >=75years) and compared to those <65. Analysis was restricted to those patients receiving the recommended treatment dose of 400mg PO b.i.d. RESULTS: Of the 398 patients included, 78 were >=65 (age 65-69 n=38, age 70-74 n=23, age>=75 n=17). The majority of elderly patients were Caucasian (n=2 Asian) and had received >=5 prior lines of chemotherapy. In patients <65, 46.9% required dose reduction as compared to 44.7% of patients 65-69years, 47.8% of patients 70 74years, and 64.7% of patients >=75years (p=0.62). In patients <65years 41.2% required dose interruption, as compared to 50%, 43.5%, and 64.7% of patients aged 65-69, 70-74, and >=75, respectively (p=0.11). There were no occurrences of myelodysplastic syndrome or acute myeloid leukemia in any of the older cohorts. Toxicities, including grade 3/4 nausea, were similar across age groups. CONCLUSIONS: Tolerability and toxicity of olaparib capsules is similar between women >=65years and <65years of age treated for advanced recurrent ovarian cancer. Use of olaparib should be considered in this patient population. PMID- 29037806 TI - PARP inhibitors: Clinical utility and possibilities of overcoming resistance. AB - PARP inhibitors represent a major breakthrough in ovarian cancer care. Almost half of all ovarian cancers have deficiencies in the homologous recombination (HR) DNA repair pathway, namely BRCA1/2 mutations. Given the limited therapeutic options for recurrent ovarian cancer patients there has been a significant effort to develop novel therapies to exploit DNA repair deficiencies. In 2005 and 2006, inhibiting PARP enzymes was first observed to be highly effective against cancers with HR deficiencies. PARP inhibitors are being utilized in the clinic to manage recurrent ovarian cancers that display defects in the HR repair pathway. However, PARP inhibitors also show significant clinical benefit in patients without HR deficiencies. There are currently three FDA-approved PARP inhibitors for recurrent ovarian cancer and an additional two PARP inhibitors being evaluated in late stage clinical trials. Given the expanding clinical use of PARP inhibitors and the high likelihood of acquired resistance, there is a significant need for clinical strategies to manage PARP inhibitor resistant disease. This review will examine PARP inhibitors in the context of: indications and toxicities, novel biomarkers to predict response, targeted-therapy resistance, and potential approaches to manage resistant disease. PMID- 29037808 TI - Application of titration methods for measuring the contents of ammonium nitrogen and volatile fatty acids in agricultural biogas plants. AB - The aim of our research was to assess a relatively new method of estimating ammonium nitrogen concentration in anaerobic digestion of plant substrates. We analysed our own data, received from the anaerobic digestion of maize silage (PM), as well as data published by Purser et al. (2014) who measured energy crops and slurry (ECS), and food waste (FW). In our study, the process was monitored for VFA content that was determined by gas chromatography, and for the content of ammonium nitrogen determined using the HACH LANGE LCK 303 cuvette test. We created polynomial regression models that bind the content of ammonium nitrogen with the volume of H2SO4 used to titrate the sample from initial pH to pH 5. To estimate parameters of model, the PM dataset was used. The obtained models were positively validated using ECS and FW datasets. Our results confirmed the effectiveness of the Purser et al. method with an average absolute error of less than 223mgl-1 of the VFA concentration, which was approximately 20-times less than the level that caused inhibition. In conclusion, we can affirm the suitability of using titration methods to assess the ammonium nitrogen content of bioreactors with a stable composition. PMID- 29037807 TI - DICER1-related Sertoli-Leydig cell tumor and gynandroblastoma: Clinical and genetic findings from the International Ovarian and Testicular Stromal Tumor Registry. AB - BACKGROUND: Ovarian sex cord-stromal tumors (OSCST) include juvenile granulosa cell tumors (JGCT), Sertoli-Leydig cell tumor (SLCT) and gynandroblastoma (GAB) among others. These ovarian sex cord-stromal tumors as well as other tumors including pleuropulmonary blastoma (PPB) may be associated with DICER1 mutations. We sought to describe the clinical and genetic findings from the first 107 individuals enrolled in the International Ovarian and Testicular Stromal Tumor Registry. METHODS: Medical and family history were obtained for individuals consecutively enrolled in the International Ovarian and Testicular Stromal Tumor Registry. Pathology was centrally reviewed. DICER1 sequencing was performed on blood and tumor tissue. RESULTS: Of the 107 participants, 49 had SLCT, 25 had JGCT and 5 had GAB. Nearly all (36/37) SLCTs and 4/4 GAB tested had a DICER1 mutation in an RNase IIIb domain hotspot; approximately half of these individuals had a predisposing germline DICER1 mutation. Metachronous SLCTs were seen in 3 individuals with germline DICER1 mutations. Other DICER1-associated conditions were seen in 19% of patients with SLCT or GAB. Three children of women with SLCT were diagnosed with PPB based on genetic testing and clinical screening during the course of this study. All were diagnosed with PPB in its earliest and most curable form (Type I), were treated with surgery alone, and are alive without evidence of disease. CONCLUSIONS: Recognition of the distinct genetic basis for a group of these tumors improves precise classification in difficult cases and promotes mutation-based screening and early detection. PMID- 29037809 TI - Prognostic significance of high YY1AP1 and PCNA expression in colon adenocarcinoma. AB - To investigate the relationship between YY1AP1 and various clinicopathological features of colon adenocarcinoma (COAD), we conducted immunohistochemical (IHC) analyses of human tissue microarrays. We found that YY1AP1 protein expression was significantly higher in tumor tissue of the colon and liver, and was significantly lower in tumor tissue of the kidney. An analysis that employed the SurvExpress database indicated that increased expression of YY1AP1 mRNA was significantly associated with the overall survival of COAD patients. To clarify the validity of YY1AP1 or PCNA as determined by the IHC analysis was performed on 59 paired samples from COAD and adjacent normal tissue. Statistically significant differences of immunoreactivity for YY1AP1 or PCNA protein expression was observed between COAD tissue and adjacent normal tissue. High protein expression levels of YY1AP1 and PCNA were also found to be significantly correlated with M class and distant metastasis. We also determined that YY1AP1 was correlated with PCNA expression in COAD samples, and Kaplan-Meier survival curves indicated that YY1AP1 protein expression was significantly associated with poor survival. Finally, a univariate analysis demonstrated that YY1AP1 protein expression was related to YY1AP1 score, and multivariate analysis revealed that the YY1AP1 protein expression level was an independent risk factor of overall COAD survival. Taken together, our findings indicate that YY1AP1 expression plays an important role in the tumorigenesis and progression of COAD and could serve as a clinical prognostic indicator for COAD. PMID- 29037810 TI - Chemical and thermal sensitivity of medaka TRPA1 analyzed in heterologous expression system. AB - TRPA1 of insects and several tetrapod vertebrates except for those of rodents have been reported to be activated by noxious chemicals and also by high temperature with a relatively clear threshold. We previously analyzed the characteristics of two TRPA1 paralogs of zebrafish (zTRPA1a, b) and demonstrated that zTRPA1a is specialized for chemical sensing while zTRPA1b responds to thermal stimulations, that zTRPA1b responds to both cold and heat stimuli, and that heat stimulation gradually activates zTRPA1b without a clear threshold. In the medaka genome, a single TRPA1 (olTRPA1) gene is present. To examine if functional properties of olTRPA1 are similar to TRPA1 of land animals or either of zTRPA1a or zTRPA1b, we isolated a TRPA1 cDNA from medaka and performed functional analyses. OlTRPA1 showed a sensitivity to four noxious chemicals (allyl isothiocyanate, caffeine, carvacrol, methyl anthranilate). We observed that cold stimulation does not activate olTRPA1, but heat stimulation gradually activates olTRPA1 with an unclear threshold. Results suggested that a single TRPA1 functions as a chemical and thermal sensor in medaka, and that a gradual heat-activation without clear threshold might be a common feature for TRPA1 of fish living in water. PMID- 29037811 TI - One-step construction of a molybdenum disulfide/multi-walled carbon nanotubes/polypyrrole nanocomposite biosensor for the ex-vivo detection of dopamine in mouse brain tissue. AB - We developed a new strategy for construction of a biosensor for the neurotransmitter dopamine. The biosensor was constructed by one-step electrochemical deposition of a nanocomposite in aqueous solution at pH 7.0, consisting of molybdenum disulfide, multi-walled carbon nanotubes, and polypyrrole. A series of analytical methods was performed to investigate the surface characteristics and the improved electrocatalytic effect of the nanocomposite, including cyclic voltammetry, electrochemical impedance spectroscopy, field-emission scanning electron microscopy, atomic force microscopy, and Raman spectroscopy. The constructed biosensor showed high sensitivity (1.130 MUAMUM-1cm-2) with a dynamic linearity range of 25-1000 nM and a detection limit of 10 nM. Additionally, the designed sensor exhibited strong anti-interference ability and satisfactory reproducibility. The practical application of the sensor was manifested for the ex vivo determination of dopamine neurotransmitters using brain tissue samples of a mouse Parkinson's disease model. PMID- 29037812 TI - Apolipoprotein A-IV exerts its anorectic action through a PI3K/Akt signaling pathway in the hypothalamus. AB - Apolipoprotein A-IV (apoA-IV) is a satiation factor that acts in the hypothalamus, however, the intracellular mechanisms responsible for this action are still largely unknown. Here we report that apoA-IV treatment elicited a rapid activation of the phosphatidylinositol-3-kinase (PI3K) signaling pathway in cultured primary hypothalamic neurons, and this effect was significantly attenuated by pretreatment with LY294002, an inhibitor of the PI3K pathway. To determine if the activation of PI3K is required for apoA-IV's inhibitory effect on food intake, apoA-IV was administered intracerebroventricularly. We found that apoA-IV significantly reduced food intake and activated PI3K signaling in the hypothalamus, and these effects were abolished by icv pre-treatment with LY294002. To identify the distinct brain sites where apoA-IV exerts its anorectic action, apoA-IV was administered into the ventromedial hypothalamus (VMH) through implanted bilateral cannula. At a low dose (0.5 MUg), apoA-IV significantly inhibited food intake and activated PI3K signaling pathway in the VMH of lean rats, but not in high-fat diet-induced obese (DIO) rats. These results collectively demonstrate a critical role of the PI3K/Akt pathway in apoA-IV's anorectic action in lean rats and suggest a defective PI3K pathway in the VMH is responsible for the impaired apoA-IV's anorectic action in the DIO animals. PMID- 29037813 TI - Fluorescence-labeled liposome accumulation in injured colon of a mouse model of T cell transfer-mediated inflammatory bowel disease. AB - Drug delivery systems maximize the efficacy of drugs by improving their pharmacokinetic profiles, pharmacodynamic effects, or both and reducing their adverse effects. One of the most advanced, clinically available formulations are liposome-encapsulated drugs. In this study, we aimed to determine if liposomes can selectively deliver compounds in gastrointestinal diseases. Initially, we evaluated the correlation between the diarrhea score and accumulation of fluorescence (FL)-labeled liposome using in vivo imaging systems in various disease states of an inflammatory bowel disease mouse model. The result showed that FL-labeled liposome accumulation and colon tissue weight, which reflect the disease state were highly and positively correlated. Then, to confirm the accumulation of liposomes at injured sites of the colon, we administered both FL labeled liposomes and luminescence probes for detecting reactive oxygen species (ROS) to the mouse model. The imaging data showed that liposome accumulation tended to coincide with ROS detected sites and the correlation coefficient indicated a significantly positive correlation between liposome accumulation and ROS detection levels. Finally, we evaluated the involvement of macrophages in the uptake mechanism of the liposomes by analyzing the relationship between FL labeled liposome accumulation and macrophage marker gene expression levels. The result showed that the expression of each macrophage marker gene and liposome accumulation showed a significant positive correlation. Therefore, the macrophages considerably contributed to the uptake mechanism of the liposomes. These data suggest that liposomes could be an attractive delivery tool for enhancing the accumulation of drug candidates through macrophages in injured colonic tissues. This approach is expected to provide new treatment options for patients with colitis. PMID- 29037814 TI - Piperlongumine suppresses bladder cancer invasion via inhibiting epithelial mesenchymal transition and F-actin reorganization. AB - Piperlongumine (PL), a natural alkaloid isolated from longer pepper plants, is recently found to be a potent selective anti-cancer compound. We first tested its anti-cancer effects on bladder cancer, the fifth most common and aggressive cancer worldwide, to further explore the therapeutic spectrum and molecular mechanisms of PL. PL significantly suppressed bladder cancer cell proliferation, the transition of G2/M phase to next phase, migration/invasion in vitro and bladder cancer growth/development in vivo. PL markedly elevated reactive oxygen species (ROS) and the administration of antioxidants abolished PL induced cell proliferation inhibition, G2/M phase arrest and migration suppression on bladder cancer cells. In vivo studies demonstrated that PL inhibited epithelial mesenchymal transition with profoundly decreased level of Slug, beta-catenin, ZEB1 and N-Cadherin. Further, we first reported PL effects on cytoskeleton with prominently reduced lamellipodia formation and decreased F-actin intensity in bladder cancer cells. Taken together, our results first revealed that PL suppressed bladder cancer proliferation and migration in vivo and in vitro, suggesting novel mechanism underlying PL's anti-cancer effect and providing a new anticancer drug strategy for bladder cancer therapy. PMID- 29037815 TI - An operating principle of the turtle utricle to detect wide dynamic range. AB - The utricle encodes both static information such as head orientation, and dynamic information such as vibrations. It is not well understood how the utricle can encode both static and dynamic information for a wide dynamic range (from <0.05 to >2 times the gravitational acceleration; from DC to > 1000 Hz vibrations). Using computational models of the hair cells in the turtle utricle, this study presents an explanation on how the turtle utricle encodes stimulations over such a wide dynamic range. Two hair bundles were modeled using the finite element method-one representing the striolar hair cell (Cell S), and the other representing the medial extrastriolar hair cell (Cell E). A mechano-transduction (MET) channel model was incorporated to compute MET current (iMET) due to hair bundle deflection. A macro-mechanical model of the utricle was used to compute otoconial motions from head accelerations (aHead). According to known anatomical data, Cell E has a long kinocilium that is embedded into the stiff otoconial layer. Unlike Cell E, the hair bundle of Cell S falls short of the otoconial layer. Considering such difference in the mechanical connectivity between the hair cell bundle and the otoconial layer, three cases were simulated: Cell E displacement-clamped, Cell S viscously-coupled, and Cell S displacement-clamped. Head accelerations at different amplitude levels and different frequencies were simulated for the three cases. When a realistic head motion was simulated, Cell E was responsive to head orientation, while the viscously-coupled Cell S was responsive to fast head motion imitating the feeding strike of a turtle. PMID- 29037817 TI - Reconstruction method for extended depth-of-field optical diffraction tomography. AB - In the paper we present a novel method of extended depth-of-field limited-angle optical diffraction tomography, in which the change of a focal plane position is performed with a liquid focus-tunable lens. One sinogram is acquired for each state of a focus-tunable lens. After acquisition process is complete, all sinograms are independently reconstructed and stitched to form the final tomographic reconstruction. The presented solution effectively extends the applicability of the Rytov approximation to relatively thick samples and provides uniform resolution of 3D tomographic reconstructions. The method is also combined with Generalized Total Variation Iterative Constraint algorithm, which minimizes distortion of the results due to the limited angular range of acquired projections. The combined solution is dedicated to investigation of transparent and semi-transparent biological micro-structures, like cells and tissue slices. PMID- 29037816 TI - In vitro segregation and isolation of human pluripotent stem cell-derived neural crest cells. AB - The neural crest (NC) is a transient embryonic cell population with remarkable characteristics. After delaminating from the neural tube, NC cells (NCCs) migrate extensively, populate nearly every tissue of the body and differentiate into highly diverse cell types such as peripheral neurons and glia, but also mesenchymal cells including chondrocytes, osteocytes, and adipocytes. While the NC has been extensively studied in several animal models, little is known about human NC development. A number of methods have been established to derive NCCs in vitro from human pluripotent stem cells (hPSC). Typically, these protocols comprise several cell culture steps to enrich for NCCs in the neural derivatives of the differentiating hPSCs. Here we report on a remarkable and hitherto unnoticed in vitro segregation phenomenon that enables direct extraction of virtually pure NCCs during the earliest stages of hPSC differentiation. Upon aggregation to embryoid bodies (EB) and replating, differentiating hPSCs give rise to a population of NCCs, which spontaneously segregate from the EB outgrowth to form conspicuous, macroscopically visible atoll-shaped clusters in the periphery of the EB outgrowth. Isolation of these NC clusters yields p75NTR(+)/SOXE(+) NCCs, which differentiate to peripheral neurons and glia as well as mesenchymal derivatives. Our data indicate that differentiating hPSC cultures recapitulate, in a simplified manner, the physical segregation of central nervous system (CNS) tissue and NCCs. This phenomenon may be exploited for NCC purification and for studying segregation and differentiation processes observed during early human NC development in vitro. PMID- 29037818 TI - snRNP proteins in health and disease. AB - Split gene architecture of most human genes requires removal of intervening sequences by mRNA splicing that occurs on large multiprotein complexes called spliceosomes. Mutations compromising several spliceosomal components have been recorded in degenerative syndromes and haematological neoplasia, thereby highlighting the importance of accurate splicing execution in homeostasis of assorted adult tissues. Moreover, insufficient splicing underlies defective development of craniofacial skeleton and upper extremities. This review summarizes recent advances in the understanding of splicing factor function deduced from cryo-EM structures. We combine these data with the characterization of splicing factors implicated in hereditary or somatic disorders, with a focus on potential functional consequences the mutations may elicit in spliceosome assembly and/or performance. Given aberrant splicing or perturbations in splicing efficiency substantially underpin disease pathogenesis, profound understanding of the mis-splicing principles may open new therapeutic vistas. In three major sections dedicated to retinal dystrophies, hereditary acrofacial syndromes, and haematological malignancies, we delineate the noticeable variety of conditions associated with dysfunctional splicing and accentuate recurrent patterns in splicing defects. PMID- 29037820 TI - Fetal intervention: Improving evidence and expanding applications. PMID- 29037819 TI - Drug-Induced Paradoxical Vocal Fold Motion. AB - Vocal cord dysfunction, also known as paradoxical vocal fold motion (PVFM), is a disorder characterized by abnormal vocal cord adduction during inspiration. PVFM is commonly misdiagnosed as asthma because of the similarity of symptoms: cough, wheezing, chest pain, and dyspnea. We present the clinical vignette of a 36-year old woman with juvenile rheumatoid arthritis and multiple adverse drug reactions who presented with recurrent episodes of unrecognized PVFM during skin testing for drug allergy, omalizumab treatment, and tocilizumab desensitization. Before the diagnosis of PVFM, these episodes were treated as anaphylaxis, including the administration of epinephrine. Once diagnosed and treated for PVFM, the patient did not present any further events and continued treatment for drug allergy. PVFM may be underreported in hypersensitivity reactions because of the similarity to Type 1-mediated respiratory symptoms and comorbid asthma. PMID- 29037821 TI - Validation of a Novel Inverted Peg Transfer Task: Advancing Beyond the Regular Peg Transfer Task for Surgical Simulation-Based Assessment. AB - OBJECTIVE: To evaluate the validity of a novel inverted peg transfer (iPT) task for assessing laparoscopic skills of novices and experts and compare iPT to the regular PT (rPT) task to ensure surgical trainee acquisition of an adequate advanced laparoscopic skills level for safe laparoscopic practice in the operating room. DESIGN: Prospective crossover study. SETTING: Multidisciplinary simulation center and motion analysis laboratory, Mayo Clinic. PARTICIPANTS: Novices were medical students and surgical interns without laparoscopic experience. Experts were surgeons with at least 3 years of experience in laparoscopic surgery. METHODS: This was the first exposure to iPT for both groups. Completion time and performance metrics were recorded. A scoring rubric was used to calculate a normalized performance score between 0 and 100. Wilcoxon rank sum and Mann-Whitney tests were performed with alpha = 0.05. Receiver operating characteristic curves were graphed for the 2 task scores to assess the tasks' sensitivity and specificity in differentiating laparoscopic experience level. MAIN OUTCOME MEASURES: Performance measures of completion time, transferred triangles, dropped triangles (errors), and the overall performance score on both tasks between- and within-subjects (i.e., novices and experts). RESULTS: Thirty-six novices and eight experts participated. Both experts and novices had longer completion time and lower scores during iPT than rPT (p < 0.05). Within iPT, novice completion times were 144 seconds longer (p = 0.04), and performance score was 35 points lower than experts (p < 0.01). No differences between novices and experts were observed for completion time or performance scores (p > 0.05) for rPT. The iPT scores had a higher sensitivity and specificity than the rPT (area under the receiver-operating characteristic curve: iPT = 0.91; rPT = 0.69). CONCLUSIONS: iPT is a valid assessment of advanced laparoscopic skills for surgical trainees with higher specificity and sensitivity than rPT. As advanced minimally invasive surgery becomes more common, it is important that tasks such as iPT be included in surgical simulation curricula and training assessment. PMID- 29037822 TI - How Does Level and Type of Experience Affect Measurement of Joint Range of Motion? AB - OBJECTIVES: Comparison of range of motion measurements by 3 types of investigators with different levels and types of training using three different measurement techniques. The study hypothesis was that the accuracy and precision of range of motion measurements would vary based on (1) the level and type of experience of the investigator and (2) the measurement technique used. DESIGN/SETTING: Descriptive laboratory study. PARTICIPANTS: Ten fresh frozen cadavers (20 upper and 20 lower extremities). INTERVENTIONS: Shoulder, elbow, hip, and knee motion were measured using 3 different measurement techniques (digital photography, goniometry, and visual estimation) by 3 groups of investigators (attending orthopedic surgeons, physical therapists, and residents). Accuracy was defined by the difference from the reference standard (motion capture analysis), whereas precision was defined by the proportion of measurements within either 5 degrees or 10 degrees of the reference standard. Analysis of variance, t-tests, and chi-squared tests were used. RESULTS: Statistically significant (p < 0.05) differences in accuracy were found for hip flexion, abduction, internal rotation, external rotation, and knee flexion. However, none of these differences met the authors' defined clinical significance (maximum difference 3 degrees ). Precision was significantly (p < 0.05) different for elbow extension, hip flexion, abduction, internal rotation, external rotation, and knee flexion. CONCLUSION: This study found that clinically accurate measurements of shoulder, elbow, hip, and knee motion are obtained regardless of technique used or the investigators' level and type of experience. Precision was equivalent for all shoulder motions, elbow flexion, and knee extension, but varied by as much as 7% to 28% between groups for all other motions. PMID- 29037823 TI - The Development of a Novel Perfused Cadaver Model With Dynamic Vital Sign Regulation and Real-World Scenarios to Teach Surgical Skills and Error Management. AB - The landscape of graduate medical education has changed dramatically over the past decade and the traditional apprenticeship model has undergone scrutiny and modifications. The mandate of the 80-hour work-week, the introduction of integrated residency programs, increased global awareness about patient safety along with financial constraints have spurred changes in graduate educational practices. In addition, new technologies, more complex procedures, and a host of external constraints have changed where and how we teach technical and procedural skills. Simulation-based training has been embraced by the surgical community and has quickly become an essential component of most residency programs as a method to add efficacy to the traditional learning model. The purpose of this paper is twofold: (1) to describe the development of a perfused cadaver model with dynamic vital sign regulation, and (2) to assess the impact of a curriculum using this model and real world scenarios to teach surgical skills and error management. By providing a realistic training environment our aim is to enhance the acquisition of surgical skills and provide a more thorough assessment of resident performance. Twenty-six learners participated in the scenarios. Qualitative data showed that participants felt that the simulation model was realistic, and that participating in the scenarios helped them gain new knowledge, learn new surgical techniques and increase their confidence performing the skill in a clinical setting. Identifying the importance of both technical and nontechnical skills in surgical education has hastened the need for more realistic simulators and environments in which they are placed. Team members should be able to interact in ways that allow for a global display of their skills thus helping to provide a more comprehensive assessment by faculty and learners. PMID- 29037824 TI - Resource Usage Implementing the Surgical Resident Prep Curriculum at a Single Institution. AB - OBJECTIVE: The Resident Prep Curriculum (RPC), published in 2014 and developed as a collaboration of the American College of Surgeons, Association of Program Directors in Surgery, and the Association for Surgical Education, was designed to improve the quality and consistency of medical student preparation for surgical residency. We aim to assess the feasibility of and resource usage for implementation of this curriculum at our institution. DESIGN: Our institution expanded upon a pre-existing 2-week surgical preparatory course, adding modules designed to meet the goals and objectives of the RPC. We performed an evaluation of the resources required for these additions, namely time, logistics and incremental cost. SETTING: The course took place at the Perelman School of Medicine, which is a large, academic medical center affiliated with the Hospital of the University of Pennsylvania. RESULTS: Our course satisfied each of the six domains outlined in the RPC. In 2015, 22 students were enrolled in the course. It was run over a consecutive 4-week period in the spring of 2015, with 9 full and 9 half days. To meet the needs of the Curriculum, approximately 33 hours (38%) were spent in the classroom, 34 hours (39%) in a simulation center, and 20 hours (23%) in the anatomical laboratory. Seventy faculty-hours (from 5 disciplines) and 73 resident-hours (double-counting for cotaught modules) were required to support the course. Besides room availability, funding was required for certain aspects of the course such as cadavers, dedicated anatomy teaching, and the costs of supplies in the simulation center. There is also a cost associated with the use of the Penn Medicine Simulation Center. Taking these into account, the total cost of implementing the curriculum amounted to $30,627.10. CONCLUSION: The implementation of the RPC was feasible but relied heavily upon faculty/resident time. As a result of the success of this initiative, our medical school seeks to expand the idea across multiple specialties. PMID- 29037825 TI - Vitamin D prevents lipid accumulation in murine muscle through regulation of PPARgamma and perilipin-2 expression. AB - Vitamin D plays an important role in regulation of skeletal muscle tone and contraction. Serum vitamin D status is linked to muscle power and force in adolescent girls, and vitamin D deficiency is associated with myopathies in children and poorer physical performance in the elderly. We previously reported that vitamin D deficiency is linked to a significant increase in muscle fatty infiltration in healthy young women, and studies in patients with neuromuscular disorders also associate muscle weakening and lipid content. In order to better understand the link between vitamin D status and skeletal muscle lipid metabolism, we compared the effect of a low (25IU/kg) or normal (1000IU/kg) vitamin D3 diet on muscle fat in female FVB mice maintained in a room without UVB lighting to minimize endogenous vitamin D production. Animals on low vitamin D diet displayed lower circulating 25(OH)D levels and a dramatic increase (287+/ 52% compared to normal diet, p<0.0001) in lipid deposition in skeletal muscle accompanied by muscle fiber disorganization. Lipid droplet staining increased by 242+/-23% (p<0.0001) in low vitamin D diet, and lipid droplet coat protein perilipin-2 and nuclear receptor transcription factor PPARgamma expression levels were increased compared to mice fed the normal vitamin D diet: average staining for PLIN2: 0.22+/-0.08 (25IU/kg diet) vs 0.10+/-0.02 (1000IU/kg). Average staining for PPARgamma: 0.24+/-0.06 (25IU/kg diet) vs 0.07+/-0.04 (1000IU/kg) p<0.0001. Tissue mass spectrometry imaging revealed major differences in muscle phospholipids profile depending on diet. In vitro, 1,25(OH)2D3 treatment of 3T3 L1 pre-adipocytes inhibited appearance of lipid droplets by 79+/-9.3%, and caused a 80+/-10% and 25+/-8% (p=0.001) reduction in PPARgamma and perilipin-2 mRNA levels (by qPCR) compared to control cells. In summary, we report here the first in vivo model illustrating the important structural muscle fiber disorganization and fat accumulation inside and outside muscle fibers that accompany vitamin D deficiency. Furthermore, we show that the underlying mechanisms involve PPARgamma and perilipin-2. PMID- 29037826 TI - Occurrence of four Anaplasma species with veterinary and public health significance in sheep, northwestern China. AB - The members of the genus Anaplasma are important tick-borne rickettsial bacteria of veterinary and public health significance. Domestic ruminants are important reservoir hosts for several Anaplasma species. In this study, the occurrence of Anaplasma spp. was investigated by PCR in domestic small ruminants from Gansu, northwestern China. The results showed a high prevalence of Anaplasma spp. (46.2%, 201/435) in sheep. The average infection rates were 5.7%, 24.4%, 28.0% and 18.2% for A. ovis, A. bovis, A. phagocytophilum and A. capra, respectively. Coinfection of different Anaplasma species occurred in 96 (22.1%) sheep. The infections of Anaplasma species in sheep were confirmed by sequencing of msp4, 16S rRNA and gltA genes. Sequence analysis revealed a novel A. capra genotype in sheep that was distinct from the isolates identified from patients in northeastern China. This study gives the first insight of presence of four distinct Anaplasma species with veterinary and medical significance in sheep in northwestern China. PMID- 29037827 TI - Improvement of serum lipids concentration in a general population historical cohort. Why? AB - BACKGROUND: Knowledge about the harmful effects of high levels of low-density lipoprotein cholesterol (cLDL) in adults increased after the publication of various guidelines, leading to closer control and more treatment. We hypothesized that these health care changes would result in an overall improvement in the lipid profile of the population. OBJECTIVE: To determine the evolution of the lipid profile in the population of Spain from the Diet and Risk of Cardiovascular Disease in Spain cohort. METHODS: A comparison was made between the baseline population-based probabilistically sampled DRECE cohort (DRECE 1 study, 1992 1994, n=4787) and its 13 years later revisit (DRECE 3 study, 2005-2007). A cross sectional comparison was made of the overall population of DRECE1 and DRECE3, including only individuals aged 20 to 60 years (inter-individual variations). For subjects participating in both DRECE1 and DRECE3 (n=1039), individual variations over time (intra-individual analyses) were examined. RESULTS: In the overall population, the prevalence of lipid-lowering therapy increased from 3.8% in DRECE1 to 10.7% in DRECE3. Comparing the lipid profile of the population aged 20 60 years in DRECE1 with the same age group in DRECE3, an overall decrease is observed in total cholesterol from a mean of 203.31mg/dl (SD 43.51) in 1992-1994 to 196.31mg/dl (SD 38.53) in 2005-2007, and in cLDL from a mean of 125.78mg/dl (SD 38.53) to 121.37mg/dl (SD 34.22). The proportion of the population with total cholesterol >200mg/dl decreased from 51% in DRECE1 to 47% in DRECE3, although this difference did not reach statistical significance (p=0.077). As regards the intra-individual analyses, total cholesterol increased from DRECE1 to DRECE3 in men and women younger than 40 years at baseline, but decreased in those who were older. Index of individuality for total cholesterol, cLDL, cHDL and triglycerides ranged from 0.53 to 0.87. CONCLUSIONS: The lipid profile of the Spanish population improved between 1992-1994 and 2005-2007. Within individuals, lipid concentrations, especially total cholesterol and cLDL have increased, although the trend is favorable in the middle-age group (40-59 years). These changes seem to be due to several causes, impacted by dietary and lifestyle factors, and also by a greater emphasis in lipid-lowering therapy in middle-aged people. Lipid parameters had a low index of individuality, which limits their usefulness as population reference values. PMID- 29037829 TI - Foreword-Pediatric Environmental Health: Using Data on Toxic Chemical Emissions in Practice. PMID- 29037828 TI - Chemogenetic modulation of cholinergic interneurons reveals their regulating role on the direct and indirect output pathways from the striatum. AB - The intricate balance between dopaminergic and cholinergic neurotransmission in the striatum has been thoroughly difficult to characterize. It was initially described as a seesaw with a competing function of dopamine versus acetylcholine. Recent technical advances however, have brought this view into question suggesting that the two systems work rather in concert with the cholinergic interneurons (ChIs) driving dopamine release. In this study, we have utilized two transgenic Cre-driver rat lines, a choline acetyl transferase ChAT-Cre transgenic rat and a novel double-transgenic tyrosine hydroxylase TH-Cre/ChAT-Cre rat to further elucidate the role of striatal ChIs in normal motor function and in Parkinson's disease. Here we show that selective and reversible activation of ChIs using chemogenetic (DREADD) receptors increases locomotor function in intact rats and potentiate the therapeutic effect of L-DOPA in the rats with lesions of the nigral dopamine system. However, the potentiation of the L-DOPA effect is accompanied by an aggravation of L-DOPA induced dyskinesias (LIDs). These LIDs appear to be driven primarily through the indirect striato-pallidal pathway since the same effect can be induced by the D2 agonist Quinpirole. Taken together, the results highlight the intricate regulation of balance between the two output pathways from the striatum orchestrated by the ChIs. PMID- 29037830 TI - Obesity and hypertension in children -a growing problem. PMID- 29037831 TI - A complex case of pacemaker lead endocarditis. AB - Pacemaker lead endocarditis is an uncommon complication after pacemaker implantation, but is associated with high rates of morbidity and mortality. The authors describe the case of a 68-year-old woman with a double-chamber pacemaker since 2007, admitted to an internal medicine department for spondylodiscitis and Staphylococcus aureus bacteremia. During hospitalization, she had an episode of syncope; the 12-lead electrocardiogram showed pacemaker malfunction with ventricular undersensing and loss of capture. A transesophageal echocardiogram showed images compatible with vegetations on the pacemaker leads. After antimicrobial therapy, the patient developed acute renal failure with subsequent multiple organ failure and death. A high index of clinical suspicion is required for early diagnosis and appropriate treatment of cardiac device-related infective endocarditis. PMID- 29037832 TI - Resynchronization therapy in patients with atrial fibrillation: What are the results? PMID- 29037833 TI - Insights into the background of autonomic medicine. AB - Knowledge of the physiology underlying the autonomic nervous system is pivotal for understanding autonomic dysfunction in clinical practice. Autonomic dysfunction may result from primary modifications of the autonomic nervous system or be secondary to a wide range of diseases that cause severe morbidity and mortality. Together with a detailed history and physical examination, laboratory assessment of autonomic function is essential for the analysis of various clinical conditions and the establishment of effective, personalized and precise therapeutic schemes. This review summarizes the main aspects of autonomic medicine that constitute the background of cardiovascular autonomic dysfunction. PMID- 29037834 TI - Microvascular reperfusion in myocardial infarction: The new concept of the open artery in the 21st century. PMID- 29037835 TI - Pulmonary arteriovenous malformation closure in a preterm newborn. PMID- 29037836 TI - The genomic and transcriptomic basis of the potential of Lactobacillus plantarum A6 to improve the nutritional quality of a cereal based fermented food. AB - The objective of this work was to investigate the nutritional potential of Lactobacillus plantarum A6 in a food matrix using next generation sequencing. To this end, we characterized the genome of the A6 strain for a complete overview of its potential. We then compared its transcriptome when grown in a food matrix made from pearl millet to and its transcriptome when cultivated in a laboratory medium. Genomic comparison of the strain L. plantarum A6 with the strains WCFS1, ST-III, JDM1 and ATCC14917 led to the identification of five regions of genomic plasticity. More specifically, 362 coding sequences, mostly annotated as coding for proteins of unknown functions, were specific to L. plantarum A6. A total of 1201 genes were significantly differentially expressed in laboratory medium and food matrix. Among them, 821 genes were up-regulated in the food matrix compared to the laboratory medium, representing 23% of whole genomic objects. In the laboratory medium, the expression of 380 genes, representing 11% of the all genomic objects was at least double than in the food matrix. Genes encoding important functions for the nutritional quality of the food were identified. Considering its efficiency as an amylolytic strain, we investigated all genes involved in carbohydrate metabolism, paying particular attention to starch metabolism. An extracellular alpha amylase, a neopullulanase and maltodextrin transporters were identified, all of which were highly expressed in the food matrix. In addition, genes involved in alpha-galactoside metabolism were identified but only two of them were induced in food matrix than in laboratory medium. This may be because alpha galactosides were already eliminated during soaking. Different biosynthetic pathways involved in the synthesis of vitamin B (folate, riboflavin, and cobalamin) were identified. They allowed the identification of a potential of vitamin synthesis, which should be confirmed through biochemical analysis in further work. Surprisingly, some genes involved in metabolism and bioaccessibility of iron were identified. They were related directly to the use of transport of iron, or indirectly to metabolism of polyphenols, responsible of iron chelation in the food. The combination of genomics and transcriptomics not only revealed previously undocumented nutritional properties of L. plantarum A6, but also documented the behaviour of this bacterium in food. PMID- 29037837 TI - The correlation between XIAP gene polymorphisms and esophageal squamous cell carcinoma susceptibility and prognosis in a Chinese population. AB - OBJECTIVE: This study aims to explore the correlation between X-linked inhibitor of apoptosis protein (XIAP) gene polymorphisms (rs8371 and rs9856) with the susceptibility and prognosis of esophageal squamous cell carcinoma (ESCC), providing a potential treatment for ESCC. METHOD: A total of 170 ESCC patients (case group) and 191 healthy people (control group) were enrolled in our study. Genotyping was conducted on the basis of the ligase detection reaction (LDR). The expressions of XIAP polymorphisms were detected. The patients were followed up every three months until death or the last follow-up day. The overall survival (OS) and progression free survival (PFS) were recorded by Kaplan-Meier survival curve, and the relationship between XIAP gene polymorphism and risk and prognosis of ESCC was assessed by Cox multivariate analysis. RESULT: TT+CT genotype and T allele frequencies of XIAP rs8371 and rs9856 in the case group were significantly lower compared to those of the control group (all P<0.05), suggesting that TT+CT genotype of XIAP rs8371 and rs9856 was associated with ESCC susceptibility. XIAP rs8371 and rs9856 polymorphisms were associated with tumor node metastasis (TNM) staging, depth of invasion and lymph node metastasis. The OS and PFS of TT+CT genotype carriers of rs8371 were longer than those of CC genotype carriers. Smoking, alcohol, TNM staging, depth of invasion, and lymph node metastasis were significantly associated with the OS and PFS in ESCC patients. Higher TNM staging, depth of invasion, and presence of lymph node metastasis were independent risk factors, while XIAP rs8371 was an independent protective factor for the prognosis of ESCC patients. CONCLUSION: The present study demonstrates that XIAP rs8371 and rs9856 are associated with susceptibility to ESCC, and rs8371 polymorphisms might serve as an indicator for improved clinical efficacy and prognosis of ESCC patients. PMID- 29037838 TI - Expression and epigenetic regulation of cystatin B in lung cancer and colorectal cancer. AB - AIMS: Dysregulated expression of cystatin B (CSTB) has been implicated in various cancers. The aims of this study were to analyze the CSTB expression and investigate the epigenetic regulation of CSTB in lung and colon cancer cell lines, and also evaluate the clinical outcome of CSTB in primary lung and colorectal tumors. METHODS: CSTB expression in lung and colon cancer cell lines was analyzed by real-time RT-PCR and western blotting. Epigenetic regulation of CSTB was examined by demethylation, deacetylation tests and bisulfite sequencing (BS). In primary lung and colorectal tumors, the protein expression of CSTB was evaluated by immunohistochemistry on tissue microarray. RESULTS: CSTB was downregulated in lung cancer cell lines on mRNA and protein levels compared to human bronchial epithelial cells (HBEC). In colon cancer cell lines, CSTB was weakly expressed in Caco2, CX2 and HCT-16 and highly expressed in HT-29, WiDr, SW480 and HRT-18 on mRNA level compared to normal colonic fibroblast cells CCD33Co. After treatment with demethylation agent 5-aza-2'-deoxycytidine, increased CSTB mRNA expression was found in 7 out of 11 lung cancer cell lines including H226, H157, H2170, H1299, COLO677, A549 and H1975, while no obvious alteration was found in colon cancer cell lines. No DNA methylation could be found in the selected CpG islands in two types of cancer cell lines by bisulfite sequencing. In primary tumors, CSTB expression was significantly and inversely correlated with lung tumor stage (pN) and tumor grade (p=0.022 and 0.047, respectively). Kaplan-Meier survival curve revealed a tendency that lung tumors with high CSTB expression had a more favourable prognosis (p=0.062). In colorectal tumors, CSTB was not linked to any clinicopathological parameters including age, size of tumor, lymph node metastasis and tumor grading. CONCLUSIONS: CSTB might be a potential prognostic marker for patients with primary lung cancer. PMID- 29037839 TI - Upregulation of caprin1 expression is associated with poor prognosis in hepatocellular carcinoma. AB - Caprin-1 has been found to promotes osteosarcoma tumor growth, lung metastasis in mice, regulating the proliferation and invasion of human breast cancer cells and up-regulated in proton beam irradiated human melanoma cells. However, its clinical role, biological function in the hepatocellular carcinoma (HCC) remains unknown. In the present study, we investigated the clinical significance of Caprin1 in the HCC. Caprin1 expression was detected by immunohistochemistry, and the expression level was analyzed in 65 HCC tissues and paired peritumoral tissue. Prognostic value of Caprin1 in HCC was evaluated in 174 cases using Kaplan-Meier analysis. Univariate survival analysis and multiple Cox proportional hazards regression were performed using the Cox regression analysis. Immunohistochemistry revealed that Caprin1 expression in 65 HCC tissues was upregulated compared to paired peritumoral tissue (p=0.0064). Survival analysis in 174 HCC patient tissues was showed that high Caprin1 expression was significantly associated with worse overall survival (HR=1.513, p=0.042). In conclusion, high Caprin1 expression independently predicts a poor outcome for patients with HCC, supporting that Caprin1 may be a promising novel HCC prognostic factor. PMID- 29037840 TI - Comparison of plasma copeptin and multiple biomarkers for assessing prognosis of patients with aneurysmal subarachnoid hemorrhage. AB - BACKGROUND: Increased plasma copeptin concentrations are related to poor prognosis after aneurysmal subarachnoid hemorrhage (aSAH). The aim of this study was to assess prognostic significance of plasma copeptin detection compared with glial fibrillary astrocyte protein, myelin basic protein, S100B, phosphorylated axonal neurofilament subunit H, neuron-specific enolase, tau and ubiquitin carboxyl-terminal hydrolase L1 in aSAH. METHODS: We detected plasma concentrations of the aforementioned biomarkers in 105 healthy controls using ELISA. Their predictive ability for symptomatic cerebral vasospasm and 6-month poor outcome (Glasgow Outcome Scale score of 1-3) were compared. RESULTS: Plasma concentrations of the preceding biomarkers were highly correlated with World Federation of Neurological Surgeons subarachnoid hemorrhage scale (WFNS) scores as well as were significantly higher in patients with symptomatic cerebral vasospasm than in those without symptomatic cerebral vasospasm and in patients with poor outcome than in those with good outcome. In terms of area under receiver operating characteristic curve, their predictive value for symptomatic cerebral vasospasm and 6-month poor outcome was in the range of WFNS scores. Plasma copeptin concentration, but not plasma concentrations of other biomarkers, statistically significantly improved the predictive performance of WFNS scores. CONCLUSIONS: Copeptin in plasma might have the potential to be a useful prognostic biomarker for aSAH. PMID- 29037841 TI - First report on an X-linked hypohidrotic ectodermal dysplasia family with X chromosome inversion: Breakpoint mapping reveals the pathogenic mechanism and preimplantation genetics diagnosis achieves an unaffected birth. AB - BACKGROUND: To investigate the etiology of X-linked hypohidrotic ectodermal dysplasia (XLHED) in a family with an inversion of the X chromosome [inv(X)(p21q13)] and to achieve a healthy birth following preimplantation genetic diagnosis (PGD). METHODS: Next generation sequencing (NGS) and Sanger sequencing analysis were carried out to define the inversion breakpoint. Multiple displacement amplification, amplification of breakpoint junction fragments, Sanger sequencing of exon 1 of ED1, haplotyping of informative short tandem repeat markers and gender determination were performed for PGD. RESULTS: NGS data of the proband sample revealed that the size of the possible inverted fragment was over 42Mb, spanning from position 26, 814, 206 to position 69, 231, 915 on the X chromosome. The breakpoints were confirmed by Sanger sequencing. A total of 5 blastocyst embryos underwent trophectoderm biopsy. Two embryos were diagnosed as carriers and three were unaffected. Two unaffected blastocysts were transferred and a singleton pregnancy was achieved. Following confirmation by prenatal diagnosis, a healthy baby was delivered. CONCLUSIONS: This is the first report of an XLHED family with inv(X). ED1 is disrupted by the X chromosome inversion in this XLHED family and embryos with the X chromosomal abnormality can be accurately identified by means of PGD. PMID- 29037842 TI - Puerarin inhibits expression of tissue factor induced by oxidative low-density lipoprotein through activating the PI3K/Akt/eNOS pathway and inhibiting activation of ERK1/2 and NF-kappaB. AB - AIMS: The present study aimed to investigate whether puerarin regulated tissue factor (TF) expression induced by oxidative low-density lipoprotein (ox-LDL), an independent risk factor for atherosclerosis, and its mechanisms. MAIN METHODS: TF expression at the mRNA level was determined by reverse transcription-quantitative polymerase chain reaction, and its expression at the protein level, as well as other target proteins, was assessed by western blotting. Nitric oxide (NO) production was measured by a nitrate reduction method. KEY FINDINGS: Results demonstrated that treatment with ox-LDL (50mg/l) for 24h significantly increased (P<0.01) TF expression at the mRNA and protein levels in human umbilical vein endothelial cells (HUVECs). Such an ox-LDL exposure also triggered the dephosphorylation of Akt, resulting in a reduction of NO production and activated the extracellular signal-regulated kinase (ERK)1/2 and nuclear factor (NF)-kappaB signaling pathways. Pre-treatment with puerarin (50-200MUM) for 1h significantly attenuated the ox-LDL-induced TF expression, augmented the phosphorylation of Akt, with a resultant increase of the NO production, and inhibited the activation of ERK1/2 and NF-kappaB (P<0.01). However, this beneficial effect of puerarin (100MUM) was abolished by LY294002 (10MUM), an inhibitor of phosphoinositide 3 kinase (PI3K), or NG-nitro-L-arginine methyl ester (100MUM), an inhibitor of NO synthase. SIGNIFICANCE: These results suggested that puerarin suppressed TF expression in HUVECs through activating the PI3K/Akt/endothelial nitric oxide synthase signaling pathway and inhibiting the activation of ERK1/2 and NF-kappaB. These findings suggested that puerarin possessed certain anticoagulation and may be a potential novel therapeutic drug for thrombosis in coronary artery disease. PMID- 29037843 TI - Spatio-Temporal Flow and Wall Shear Stress Mapping Based on Incoherent Ensemble Correlation of Ultrafast Contrast Enhanced Ultrasound Images. AB - In this study, a technique for high-frame-rate ultrasound imaging velocimetry (UIV) is extended first to provide more robust quantitative flow velocity mapping using ensemble correlation of images without coherent compounding, and second to generate spatio-temporal wall shear stress (WSS) distribution. A simulation model, which couples the ultrasound simulator with analytical flow solution, was implemented to evaluate its accuracy. It is shown that the proposed approach can reduce errors in velocity estimation by up to 10-fold in comparison with the coherent correlation approach. Mean errors (ME) of 3.2% and 8.6% were estimated under a steady flow condition, while 3.0% and 10.6% were found under a pulsatile condition for the velocity and wall shear rate (WSR) measurement, respectively. Appropriate filter parameters were selected to constrain the velocity profiles before WSR estimations and the effects of incorrect wall tracking were quantified under a controlled environment. Although accurate wall tracking is found to be critical in WSR measurement (as a 200 um deviation from the wall may yield up to a 60% error), this can be mitigated by HFR imaging (of up to 10 kHz) with contrast agents, which allow for improved differentiation of the wall-fluid boundaries. In vitro investigations on two carotid bifurcation phantoms, normal and diseased, were conducted, and their relative differences in terms of the flow patterns and WSR distribution were demonstrated. It is shown that high-frame-rate UIV technique can be a non-invasive tool to measure quantitatively the spatio temporal velocity and WSS distribution. PMID- 29037844 TI - Clinical Application of Contrast-Enhanced Ultrasound Using High-Frequency Linear Probe in the Detection of Small Colorectal Liver Metastases. AB - To compare the performance of contrast-enhanced ultrasound (CEUS) using high frequency linear and convex probes in the detection of small colorectal liver metastases (CRLMs). A total of 85 patients with 143 small CRLMs were evaluated. High-frequency ultrasound (US) and CEUS detected significantly more superficial lesions within 60 mm below the skin than a convex probe (p <0.05). The detection rate decreased in the chemotherapy group, especially when using a convex probe for US (p <0.05). By combining convex and linear probes, detection rates of US and CEUS were significantly higher than that of a convex or a linear probe alone (p <0.05). High-frequency US and CEUS helped to improve detection of small CRLMs and reduce the influence of chemotherapy. For patients with a high risk of CRLMs and those after chemotherapy, we recommend first scanning the liver by using a convex probe and subsequently screening the surface area of the liver and suspicious small lesions by using a linear probe. PMID- 29037846 TI - Altered bone density and stress distribution patterns in long-standing cubitus varus deformity and their effect during early osteoarthritis of the elbow. AB - OBJECTIVE: To quantify the bone density and stress distribution patterns in long standing cubitus varus and clarify the effects of the deformity on bone density. DESIGN: We created three-dimensional computed tomography (CT) elbow models from 21 patients with long-standing cubitus varus deformities without advanced osteoarthritis (OA) and assessed the deformity by superimposing the affected humerus onto a mirror-image of the contralateral normal. Elbows were divided into 13 regions before measuring the bone density of each region and comparing the percentage of high-density volume (%HDV) between affected and normal sides. We constructed finite element models and quantitatively analyzed stress distribution. RESULTS: Average degrees of deformities were 20.1 degrees of varus, 6.4 degrees of extension, and 12.7 degrees of internal rotation. The medial side of the affected humerus and ulna, Anteromedial trochlea (P < 0.001), Medial coronoid (P = 0.004), and Medial olecranon (P = 0.049) had significantly higher %HDVs than their normal counterparts. Conversely, %HDVs on the affected lateral side, Capitellum (P < 0.001), Anterolateral trochlea (P = 0.010), Posterolateral trochlea (P < 0.001), Lateral coronoid (P = 0.007), and Lateral olecranon (P < 0.001) were significantly lower than the normal side. The affected radial head %HDVs at Anterolateral and Posteromedial quadrants were high (P = 0.007) and low (P = 0.007), respectively. The bone density distribution coincided with stress distribution patterns revealed by finite element analysis (FEA), except in the lateral region influenced by forearm rotation. CONCLUSIONS: Repetitive stress on the medial elbow may alter bone density distribution patterns, probably presenting from early stage of OA. PMID- 29037845 TI - Implementing core NICE guidelines for osteoarthritis in primary care with a model consultation (MOSAICS): a cluster randomised controlled trial. AB - OBJECTIVE: To determine the effectiveness of a model osteoarthritis consultation, compared with usual care, on physical function and uptake of National Institute for Health and Care Excellence (NICE) osteoarthritis recommendations, in adults >=45 years consulting with peripheral joint pain in UK general practice. METHOD: Two-arm cluster-randomised controlled trial with baseline health survey. Eight general practices in England. PARTICIPANTS: 525 adults >=45 years consulting for peripheral joint pain, amongst 28,443 population survey recipients. Four intervention practices delivered the model osteoarthritis consultation to patients consulting with peripheral joint pain; four control practices continued usual care. The primary clinical outcome of the trial was the SF-12 physical component score (PCS) at 6 months; the main secondary outcome was uptake of NICE core recommendations by 6 months, measured by osteoarthritis quality indicators. A Linear Mixed Model was used to analyse clinical outcome data (SF-12 PCS). Differences in quality indicator outcomes were assessed using logistic regression. RESULTS: 525 eligible participants were enrolled (mean age 67.3 years, SD 10.5; 59.6% female): 288 from intervention and 237 from control practices. There were no statistically significant differences in SF-12 PCS: mean difference at the 6-month primary endpoint was -0.37 (95% CI -2.32, 1.57). Uptake of core NICE recommendations by 6 months was statistically significantly higher in the intervention arm compared with control: e.g., increased written exercise information, 20.5% (7.9, 28.3). CONCLUSION: Whilst uptake of core NICE recommendations was increased, there was no evidence of benefit of this intervention, as delivered in this pragmatic randomised trial, on the primary outcome of physical functioning at 6 months. TRIAL REGISTRATION: ISRCTN06984617. PMID- 29037847 TI - The added mass forces in insect flapping wings. AB - The added mass forces of three-dimensional (3D) flapping wings of some representative insects, and the accuracy of the often used simple two-dimensional (2D) method, are studied. The added mass force of a flapping wing is calculated by both 3D and 2D methods, and the total aerodynamic force of the wing is calculated by the CFD method. Our findings are as following. The added mass force has a significant contribution to the total aerodynamic force of the flapping wings during and near the stroke reversals, and the shorter the stroke amplitude is, the larger the added mass force becomes. Thus the added mass force could not be neglected when using the simple models to estimate the aerodynamics force, especially for insects with relatively small stroke amplitudes. The accuracy of the often used simple 2D method is reasonably good: when the aspect ratio of the wing is greater than about 3.3, error in the added mass force calculation due to the 2D assumption is less than 9%; even when the aspect ratio is 2.8 (approximately the smallest for an insect), the error is no more than 13%. PMID- 29037848 TI - Molecular mechanism of mercury-induced reproductive impairments in banded gourami, Trichogaster fasciata. AB - Mercury is one of the key pollutants responsible for the degradation of natural aquatic ecosystems. Among the different forms of mercury that exist in the environment, mercuric chloride (HgCl2) is the dominant pollutant for freshwater environments as it is used as an ingredient in antiseptics, disinfectants and preservatives, insecticides, batteries and in metallurgical and photographic operations. Pollutant may exert their action on organisms or populations by affecting their normal endocrine function as well as reproduction. Thus, the present study tried to understand the effect of mercuric chloride (HgCl2) on reproductive function and to decipher the molecular mechanism of Hg-induced reproductive impairments of female Trichogaster fasciata. Both in vivo and in vitro experiments were performed by using ecologically relevant doses of HgCl2 and the resulting effects on follicular development, steroidogenic potentiality, aromatase activity, aromatase gene expression and steroidogenic factor-1 (SF-1) expression pattern were analysed. In vivo exposure to HgCl2 caused reproductive impairments as shown by the inhibitory role of HgCl2 on follicular development, steroid biosynthesis and SF-1 activity. In vitro experiments revealed that aromatase activity, steroidogenesis, aromatase and SF-1 expression were blocked by HgCl2. The results obtained from this study contribute to understand the molecular mechanism of HgCl2-induced reproductive impairment of T. fasciata. PMID- 29037850 TI - Comparison of DNA fragmentation of frozen-thawed epididymal sperm of dogs using Sperm Chromatin Structure Analysis and Sperm Chromatin Dispersion test. AB - The aim of this study was to compare sperm DNA fragmentation of frozen-thawed epididymal sperm of dogs using the SCSA (Sperm Chromatin Structure Assay) and SCDt (Sperm Chromatin Dispersion test). For this purpose, epididymis from neutered dogs were minced and incubated in a Tris-based extender. The recovered sperm were frozen in a two-step cooling protocol with Tris-based, egg yolk extender and increasing glycerol concentrations, and stored in liquid nitrogen. After thawing, each replica was incubated at 38 degrees C for 24h. Sperm DNA fragmentation index (sDFi) was assessed by SCSA and SCDt at 0, 3, 6 and 24h of incubation and compared within treatments. The relationship and agreement between techniques were evaluated by Pearson's coefficient and Intraclass Correlation Coefficient (ICC). The results were expressed as mean+/-standard error of the mean (SEM). Both techniques indicated there was a significant increase of DNA fragmentation after 24h of incubation. Moderate correlation (r=0.65; P<0.01) but lack of agreement (ICC=0.451; P>0.05) was found between SCSA and SCDt. The lack of agreement indicates that SCSA and SCDt measure different aspects of DNA fragmentation. Four halo morphologies were detected after 24h of incubation using the SCDt: un-fragmented DNA with a small halo, fragmented DNA with large halo and two new halo presentations never described before for dog sperm: receding sperm with a disappearing halo and "bald" sperm without chromatin dispersion halo around the core. Sperm without a halo of chromatin dispersion are not described by the manufacturer and are similar to un-fragmented sperm, which could lead to erroneous results when using the SCDt. Further studies with different incubation periods and including the new morphologies described in this study should be performed. In conclusion, although SCSA and SCDt can evaluate the changes in the sperm DNA fragmentation dynamics of frozen-thawed epididymal dog sperm, these provided different findings on sperm DNA fragmentation. PMID- 29037849 TI - Letrozole induced low estrogen levels affected the expressions of duodenal and renal calcium-processing gene in laying hens. AB - Estrogen regulates the calcium homeostasis in hens, but the mechanisms involved are still unclear fully. In this study, we investigated whether letrozole (LZ) induced low estrogen levels affected the calcium absorption and transport in layers. In the duodenum, we observed a significant decrease of mRNA expressions of Calbindin-28k (CaBP-28k) and plasma membrane Ca2+-ATPase (PMCA 1b) while CaBP 28k protein expression was declined in birds with LZ treatment, and the mRNA levels of duodenal transient receptor potential vanilloid 6 (TRPV6) and Na+/Ca2+ exchanger 1 (NCX1) were not affected. Interestingly, we observed the different changes in the kidney. The renal mRNA expressions of TRPV6 and NCX1 were unregulated while the PMCA1b was down-regulated in low estrogen layers, however, the CaBP-28k gene and protein expressions were no changed in the kidney. Furthermore, it showed that the duodenal estradiol receptor 2 (ESR2) transcripts rather than parathyroid hormone 1 receptor (PTH1R) and calcitonin receptor (CALCR) played key roles to down-regulate calcium transport in LZ-treated birds. In conclusion, CaBP-28k, PMCA 1b and ESR2 genes in the duodenum may be primary targets for estrogen regulation in order to control calcium homeostasis in hens. PMID- 29037853 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- 29037851 TI - Cobalamin-Associated Superoxide Scavenging in Neuronal Cells Is a Potential Mechanism for Vitamin B12-Deprivation Optic Neuropathy. AB - Chronic deficiency of vitamin B12 is the only nutritional deficiency definitively proved to cause optic neuropathy and loss of vision. The mechanism by which this occurs is unknown. Optic neuropathies are associated with death of retinal ganglion cells (RGCs), neurons that project their axons along the optic nerve to the brain. Injury to RGC axons causes a burst of intracellular superoxide, which then signals RGC apoptosis. Vitamin B12 (cobalamin) was recently shown to be a superoxide scavenger, with a rate constant similar to superoxide dismutase. Given that vitamin B12 deficiency causes an optic neuropathy through unknown mechanisms and that it is a potent superoxide scavenger, we tested whether cobalamin, a vitamin B12 vitamer, would be neuroprotective in vitro and in vivo. We found that cobalamin scavenged superoxide in neuronal cells in vitro treated with the reduction-oxidation cycling agent menadione. In vivo confocal scanning laser ophthalmoscopy demonstrated that optic nerve transection in Long-Evans rats increased superoxide levels in RGCs. The RGC superoxide burst was significantly reduced by intravitreal cobalamin and resulted in increased RGC survival. These data demonstrate that cobalamin may function as an endogenous neuroprotectant for RGCs through a superoxide-associated mechanism. PMID- 29037852 TI - The Hajdu Cheney Mutation Is a Determinant of B-Cell Allocation of the Splenic Marginal Zone. AB - The neurogenic locus notch homolog protein (Notch)-2 receptor is a determinant of B-cell allocation, and gain-of-NOTCH2-function mutations are associated with Hajdu-Cheney syndrome (HCS), a disease presenting with osteoporosis and acro osteolysis. We generated a mouse model reproducing the HCS mutation (Notch2HCS), and heterozygous global mutant mice displayed gain-of-Notch2 function. In the mutant spleen, the characteristic perifollicular rim marking the marginal zone (MZ), which is the interface between the nonlymphoid red pulp and the lymphoid white pulp, merged with components of the white pulp. As a consequence, the MZ of Notch2HCS mice occupied most of the splenic structure. To explore the mechanisms involved, lymphocyte populations from the bone marrow and spleen were harvested from heterozygous Notch2HCS mice and sex-matched control littermates and analyzed by flow cytometry. Notch2HCS mice had an increase in CD21/35highCD23- splenic MZ B cells of approximately fivefold and a proportional decrease in splenic follicular B cells (CD21/35intCD23+) at 1, 2, and 12 months of age. Western blot analysis revealed that Notch2HCS mutant splenocytes had increased phospho-Akt and phospho-Jun N-terminal kinase, and gene expression analysis of splenic CD19+ B cells demonstrated induction of Hes1 and Hes5 in Notch2HCS mutants. Anti-Notch2 antibodies decreased MZ B cells in control and Notch2HCS mice. In conclusion, Notch2HCS mutant mice have increased mature B cells in the MZ of the spleen. PMID- 29037854 TI - Overexpression of Flap Endonuclease 1 Correlates with Enhanced Proliferation and Poor Prognosis of Non-Small-Cell Lung Cancer. AB - Flap endonuclease 1 (FEN1) plays a crucial role in both DNA replication and damage repair. In this study, FEN1 expression and its clinical-pathologic significance in non-small-cell lung cancer (NSCLC) was investigated. Quantitative RT-PCR and immunohistochemistry analysis identified that both FEN1 mRNA and protein were highly overexpressed in about 36% of 136 cancer tissues compared to adjacent tissues, in which FEN1 was generally undetectable. Notably, patients with FEN1-overexpressed cancers were prone to have poor differentiation and poor prognosis. A strong positive correlation between the levels of FEN1 and Ki-67 staining was identified in these NSCLC tissues (r = 0.485), suggesting overexpressed FEN1 conferred a proliferative advantage to NSCLC. Furthermore, knockdown of FEN1 resulted in G1/S or G2/M phase cell cycle arrest and suppressed in vitro cellular proliferation in NSCLC cancer cells. Consistently, a selective FEN1 inhibitor was shown to effectively inhibit cellular proliferation of NSCLC cells in a dose-dependent manner. Additionally, knockdown of FEN1 significantly attenuated homologous DNA repair efficiency and enhanced cytotoxic effects of cisplatin in NSCLC cells. Taken together, these findings have indicated that overexpressed FEN1 represents a prognostic biomarker and potential therapeutic target for NSCLC treatment, which warrants further study. PMID- 29037855 TI - Nephrosphere-Derived Cells Are Induced to Multilineage Differentiation when Cultured on Human Decellularized Kidney Scaffolds. AB - In end-stage chronic kidney disease, the option of organ transplantation is limited because of the scarce availability of kidneys. The combination of stem cell research, regenerative medicine, and tissue engineering seems a promising approach to produce new transplantable kidneys. Currently, the possibility to repopulate naturally obtained scaffolds with cells of different sources is advancing. Our aim was to test, for the first time, whether the nephrosphere (NS) cells, composed by renal stem/progenitor-like cells, were able to repopulate different nephron portions of renal extracellular matrix scaffolds obtained after decellularization of human renal tissue slices. Our decellularization protocol enabled us to obtain a completely acellular renal scaffold while maintaining the extracellular matrix structure and composition in terms of collagen IV, laminin, and fibronectin. NS cells, cultured on decellularized renal scaffolds with basal medium, differentiated into proximal and distal tubules as well as endothelium, as highlighted by histology and by the specific expression of epithelial cytokeratin 8.18, proximal tubular CD10, distal tubular cytokeratin 7, and endothelial von Willebrand factor markers. Endothelial medium promoted the differentiation toward the endothelium, whereas epithelial medium promoted the differentiation toward the epithelium. NS cells seem to be a good tool for scaffold repopulation, paving the way for experimental investigations focused on whole-kidney reconstruction. PMID- 29037857 TI - Exploring the Role of IL-32 in HIV-Related Kaposi Sarcoma. AB - The intracellular proinflammatory mediator IL-32 is associated with tumor progression; however, the mechanisms remain unknown. We studied IL-32 mRNA expression as well as expression of other proinflammatory cytokines and mediators, including IL-1alpha, IL-1beta, IL-6, IL-8, tumor necrosis factor (TNF) alpha, the proangiogenic and antiapoptotic enzyme cyclooxygenase-2, the IL-8 receptor C-X-C chemokine receptor (CXCR) 1, and the intracellular kinase focal adhesion kinase-1. The interaction of IL-32 expression with expression of IL-6, TNF-alpha, IL-8, and cyclooxygenase-2 was also investigated. Biopsy specimens of 11 HIV-related, 7 non-HIV-related Kaposi sarcoma (KS), and 7 normal skin tissues (NSTs) of Dutch origin were analyzed. RNA was isolated from the paraffin material, and gene expression levels of IL-32 alpha, beta, and gamma isoforms, IL1a, IL1b, IL6, IL8, TNFA, PTGS2, CXCR1, and PTK2 were determined using real time quantitative PCR. Significantly higher expression of IL-32beta and IL 32gamma isoforms was observed in HIV-related KS biopsy specimens compared with non-HIV-related KS and NST. The splicing ratio of the IL-32 isoforms showed IL 32gamma as the highest expressed isoform, followed by IL-32beta, in HIV-related KS cases compared with non-HIV-related KS and NST. Our data suggest a possible survival mechanism by the splicing of IL-32gamma to IL-32beta and also IL-6, IL 8, and CXCR1 signaling pathways to reverse the proapoptotic effect of the IL 32gamma isoform, leading to tumor cell survival and thus favoring tumor progression. PMID- 29037856 TI - Platelet CD40 Mediates Leukocyte Recruitment and Neointima Formation after Arterial Denudation Injury in Atherosclerosis-Prone Mice. AB - The role of platelets in the development of thrombosis and abrupt closure after angioplasty is well recognized. However, the direct impact of platelets on neointima formation after arterial injury remains undetermined. Herein, we show that neointima formation after carotid artery wire injury reduces markedly in CD40-/- apolipoprotein E-deficient (apoE-/-) mice but only slightly in CD40 ligand-/-apoE-/- mice, compared with apoE-/- mice. Wild-type and CD40-deficient platelets were isolated from blood of apoE-/- and CD40-/-apoE-/- mice, respectively. The i.v. injection of thrombin-activated platelets into CD40-/-apoE /- mice was performed every 5 days, starting at 2 days before wire injury. Injection of wild-type platelets promoted neointima formation, which was associated with increased inflammation by stimulating leukocyte recruitment via up-regulation of circulating platelet surface P-selectin expression and the formation of platelet-leukocyte aggregates. It was also associated with further promoting the luminal deposition of platelet-derived regulated on activation normal T cell expressed and secreted/chemokine (C-C motif) ligand 5 and expression of monocyte chemoattractant protein-1 and vascular cell adhesion molecule 1 in wire-injured carotid arteries. Remarkably, all these inflammatory actions by activated platelets were abrogated by lack of CD40 on injected platelets. Moreover, injection of wild-type platelets inhibited endothelial recovery in wire-injured carotid arteries, but this effect was also abrogated by lack of CD40 on injected platelets. Results suggest that platelet CD40 plays a pivotal role in neointima formation after arterial injury and might represent an attractive target to prevent restenosis after vascular interventions. PMID- 29037858 TI - Co-Localization of Insulin-Like Growth Factor Binding Protein-1, Casein Kinase 2beta, and Mechanistic Target of Rapamycin in Human Hepatocellular Carcinoma Cells as Demonstrated by Dual Immunofluorescence and in Situ Proximity Ligation Assay. AB - Insulin-like growth factor binding protein (IGFBP)-1 influences fetal growth by modifying insulin-like growth factor-I (IGF-I) bioavailability. IGFBP-1 phosphorylation, which markedly increases its affinity for IGF-I, is regulated by mechanistic target of rapamycin (mTOR) and casein kinase (CSNK)-2. However, the underlying molecular mechanisms remain unknown. We examined the cellular localization and potential interactions of IGFBP-1, CSNK-2beta, and mTOR as a prerequisite for protein-protein interaction. Analysis of dual immunofluorescence images indicated a potential perinuclear co-localization between IGFBP-1 and CSNK 2beta and a nuclear co-localization between CSNK-2beta and mTOR. Proximity ligation assay (PLA) indicated proximity between IGFBP-1 and CSNK-2beta as well as mTOR and CSNK-2beta but not between mTOR and IGFBP-1. Three-dimensional rendering of the PLA images validated that IGFBP-1 and CSNK-2beta interactions were in the perinuclear region and mTOR and CSNK-2beta interactions were also predominantly perinuclear rather than nuclear as indicated by mTOR and CSNK-2beta co-localization. Compared with control, hypoxia and rapamycin treatment showed markedly amplified PLA signals for IGFBP-1 and CSNK-2beta (approximately 18-fold, P = 0.0002). Stable isotope labeling with multiple reaction monitoring-mass spectrometry demonstrated that hypoxia and rapamycin treatment increased IGFBP-1 phosphorylation at Ser98/Ser101/Ser119/Ser174 but most considerably (106-fold) at Ser169. We report interactions between CSNK-2beta and IGFBP-1 as well as mTOR and CSNK-2beta, providing strong evidence of a mechanistic link between mTOR and IGF I signaling, two critical regulators of cell growth via CSNK-2. PMID- 29037859 TI - Chorionic Gonadotropin-beta Modulates Epithelial-Mesenchymal Transition in Colorectal Carcinoma Metastasis. AB - Ectopic production of free beta human chorionic gonadotropin (hCGbeta) has been associated with aggressive behavior in non-trophoblastic tumors. hCGbeta shares common evolutionary sequences with transforming growth factor-beta (TGF-beta), which represents a major driving force of epithelial-to-mesenchymal transition (EMT). In this study, we examined the biological roles of hCGbeta during EMT and its clinical significance in colorectal cancer (CRC) progression. Eighty CRC specimens and 54 preoperative serum samples were analyzed. hCGbeta-overexpressing human CRC cell lines were examined for invasiveness and tumorigenicity, and the expression of EMT-associated genes was investigated. In human CRC, histologic hCGbeta positivity [13/80 (16.3%)] was lower than serologic hCGbeta positivity [13/54 (24.1%)]. However, it was significantly correlated with several clinicopathological features and unfavorable outcome (P < 0.05). hCGbeta overexpressing cell lines had increased invasiveness, migratory ability, and metastatic potential in mice (P < 0.01). Western blot, PCR, and microarray analyses showed hCGbeta altered expression of EMT-related genes, including E cadherin, phosphorylated SMAD2, SNAIL, and TWIST. hCGbeta-induced SNAIL and TWIST overexpression levels were reversible by type I and type II TGF-beta receptor inhibitors (P < 0.05). hCGbeta thus induces EMT via the TGF-beta signaling pathway, and it may represent a molecular target in CRC treatment. PMID- 29037860 TI - Neurotrophin Receptors TrkA, p75NTR, and Sortilin Are Increased and Targetable in Thyroid Cancer. AB - Neurotrophin receptors are emerging targets in oncology, but their clinicopathologic significance in thyroid cancer is unclear. In this study, the neurotrophin tyrosine receptor kinase TrkA (also called NTRK1), the common neurotrophin receptor p75NTR, and the proneurotrophin receptor sortilin were analyzed with immunohistochemistry in a cohort of thyroid cancers (n = 128) and compared with adenomas and normal thyroid tissues (n = 62). TrkA was detected in 20% of thyroid cancers, compared with none of the benign samples (P = 0.0007). TrkA expression was independent of histologic subtypes but associated with lymph node metastasis (P = 0.0148), suggesting the involvement of TrkA in tumor invasiveness. Nerves in the tumor microenvironment were positive for TrkA. p75NTR was overexpressed in anaplastic thyroid cancers compared with papillary and follicular subtypes (P < 0.0001). Sortilin was overexpressed in thyroid cancers compared with benign thyroid tissues (P < 0.0001). Neurotrophin receptor expression was confirmed in a panel of thyroid cancer cell lines at the mRNA and protein levels. Functional investigations using the anaplastic thyroid cancer cell line CAL-62 found that siRNA against TrkA, p75NTR, and sortilin decreased cell survival and cell migration through decreased SRC and ERK activation. Together, these data reveal TrkA, p75NTR, and sortilin as potential therapeutic targets in thyroid cancer. PMID- 29037862 TI - Artificial Urinary Sphincter in Male Patients with Spina Bifida: Comparison of Perioperative and Functional Outcomes between Bulbar Urethra and Bladder Neck Cuff Placement. AB - PURPOSE: We evaluated the perioperative and long-term functional outcomes of bladder neck and peribulbar cuff placement of an artificial urinary sphincter in a population of adult male patients with spinal dysraphism. MATERIALS AND METHODS: We retrospectively analyzed the French spina bifida network database. Patients who underwent implantation of an artificial urinary sphincter from January 1985 to November 2015 were selected and stratified into 2 groups according to cuff location, that is bladder neck vs bulbar urethra. Explantation free and revision-free device survival was estimated by the Kaplan-Meier method and compared with the log rank test. Cox regression models were created to assess prognostic factors of artificial urinary sphincter device failure. RESULTS: A total of 65 patients were included in study. Most patients were not wheelchair bound. The cuff was implanted around the bulbar urethra at 46 procedures (59%) and around the bladder neck in 32 (41%). In the peribulbar and bladder neck groups median revision-free device survival was 11.7 and 14.3 years, respectively (p = 0.73). Median explantation-free device survival was 18.5 and 24.5 years, respectively (p = 0.08). On multivariate analysis clean intermittent catheterization was the only predictor of artificial urinary sphincter device failure. Cuff location had no influence. At the last followup satisfactory continence was similar in the 2 groups (83% vs 75%, p = 0.75). CONCLUSIONS: In male patients with spinal dysraphism morbidity and functional outcomes were similar for bladder neck and bulbar urethra cuff placement but with a trend toward longer survival without explantation in the bladder neck group. Clean intermittent catheterization was the only predictor of shorter device survival on multivariate analysis. PMID- 29037861 TI - Biological Behavior and Long-Term Outcomes of Carcinoma In Situ in Upper Urinary Tract Managed by Radical Nephroureterectomy. AB - PURPOSE: In patients with urothelial carcinoma CIS (carcinoma in situ) generally has a poor prognosis. However, to our knowledge the outcomes of pure/primary CIS and the behavior of CIS concomitant with pTa-pT4 upper tract urothelial carcinoma managed by nephroureterectomy have not been previously specified. We explored the biological and prognostic features of concomitant CIS compared with those of pure/primary CIS. MATERIALS AND METHODS: We queried a multicenter upper tract urothelial carcinoma database. Data from NUOG (Nishinihon Uro-Oncology Group) were analyzed, including patient gender, age, presence of bladder cancer and pT stage. Clinicopathological features were compared between the different subtypes. Cancer specific and overall survival, and the relative excess risk of death were estimated by CIS subtype. RESULTS: We identified 163 patients with CIS in the upper urinary tract, of whom pure/primary CIS was noted in 24.5%. In the concomitant CIS cohort the pathological diagnosis of the nonCIS region was pTa, pT1, pT2, pT3 and pT4 in 4.9%, 22.8%, 25.2%, 44.7% and 1.6% of patients, respectively. The sensitivity of a selective urine cytology test was higher in the pure/primary CIS group than in the concomitant CIS group (60.0% vs 37.4%). At a median followup of 32 months 10-year estimated mean cancer specific survival was 92.4 months (range 83.7 to 101.0) in the overall CIS cohort. Ten-year estimated mean cancer specific survival in patients with pure/primary CIS was significantly longer than in patients with concomitant carcinoma in situ (111.8 months, range 101.0 to 122.6 vs 85.89, range 75.3 to 96.5, log rank p = 0.007). CONCLUSIONS: Patients presenting with concomitant CIS have a worse outcome than those who present with pure/primary CIS, suggesting a need to differentiate these 2 entities in the treatment decision process. PMID- 29037863 TI - Outer Membrane Protein OmpB Methylation May Mediate Bacterial Virulence. AB - Methylation of outer membrane proteins (OMPs) has been implicated in bacterial virulence. Lysine methylation in rickettsial OmpB is correlated with rickettsial virulence, and N- and O-methylations are also observed in virulence-relevant OMPs from several pathogenic bacteria that cause typhus, leptospirosis, tuberculosis, and anaplasmosis. We summarize recent findings on the structure of methylated OmpB, biochemical characterization, and crystal structures of OmpB methyltransferases. Native rickettsial OmpB purified from highly virulent strains contains multiple clusters of trimethyllysine, in contrast with mostly monomethyllysine, and no trimethyllysine is found in an avirulent strain. Crystal structure of the methyltransferases reveals mechanistic insights for catalysis, and a working model is discussed for this unusual post-translational modification. PMID- 29037864 TI - Can bladder fibrosis in congenital urinary tract obstruction be reversed? AB - A variety of conditions exists in adults and children in which functional or anatomical urinary tract obstructions cause bladder fibrosis, which reduces the bladder's ability to store and empty urine. Current surgical procedures include removal of the obstructions to facilitate bladder emptying or prompt prenatal or postnatal spinal closure to prevent further neurogenic damage. Bladder fibrosis may occur, and it can get worse if a flow hindrance persists or deteriorates. Anti-fibrotic therapeutic strategies that target a variety of factors have been developed in animal models, but currently there are no anti-fibrotic therapies available for clinical use. This review examines the pathogenesis of bladder fibrosis that is caused by congenital obstructions of the lower urinary tract, and it focuses on the principal signalling factors and potential treatment modalities. PMID- 29037865 TI - Voiding school as a treatment of daytime incontinence or enuresis: Children's experiences of the intervention. AB - BACKGROUND: Daytime incontinence and enuresis are common problems in otherwise healthy children, and negatively influence their social lives and self-esteem. Motivation for treatment is often a real clinical problem. Children's experiences of their incontinence treatments have not been previously described. OBJECTIVE: The aim of this study was to describe children's experiences of the Voiding School intervention as a treatment for their incontinence. STUDY DESIGN: A qualitative, descriptive focus-group study with a purposive sample was conducted at a Finish university hospital in 2014. Children aged 6-12 years participated in the Voiding School at an outpatient clinic. The intervention included two 1-day group visits 2 months apart. The educational content was based on the International Children Continence Society's standards for urotherapy. The education was delivered with child-oriented teaching methods. At the end of the second visit, 19 children were interviewed in five groups. Data were analysed with inductive content analysis. RESULTS: The children described incontinence as an embarrassing problem, which they had to hide at any cost. They had experienced bullying and social isolation because of it. Normal outpatient visits emphasized adult-to-adult communication, which made the children feel like outsiders. The children perceived the Voiding School as a nice and child-oriented experience. Making new friends was especially important to younger boys who felt that the Voiding School day was too long and issue-oriented. In the Voiding School, videos and 'learning by doing' helped the children to understand the basis of given advice, and they were able to learn new habits, which gave them control over the incontinence; this helped them to become 'the boss of the bladder'. Sharing experiences and improvements in their incontinence with their peers supported the children's self-esteem and encouraged them to do new things, such as staying overnight with friends. These experiences helped them to acquire control over the problem (Summary Figure). DISCUSSION: According to the children's experiences, normal outpatient visits were only appointments for adults, and not very useful for children. In the Voiding School, they were respected as being the main person, and their views were listened to. The results underlined the importance of a child-oriented approach to patient education with regard to children, and provided encouragement to further develop the intervention. CONCLUSION: Child orientation, peer support, learning by doing, and understanding the cause and effect helped children to gain control over their bladders. Based on the children's experiences, this could be achieved by a voiding school. PMID- 29037866 TI - Increasing genetic diversity of H5N6 avian influenza virus in China: A serious threat to persistence and dissemination in Guangdong province. PMID- 29037867 TI - Costunolide specifically binds and inhibits thioredoxin reductase 1 to induce apoptosis in colon cancer. AB - Colon cancer is one of the leading causes of cancer-related deaths. A natural sesquiterpene lactone, costunolide (CTD), showed inhibition of cancer development. However, the underlying mechanisms are not known. Here, we have examined the therapeutic activity and novel mechanisms of the anti-cancer activities of CTD in colon cancer cells. Using SPR analysis and enzyme activity assay on recombinant TrxR1 protein, our results show that CTD directly binds and inhibits the activity of TrxR1, which caused enhanced generation of ROS and led to ROS-dependent endoplasmic reticulum stress and cell apoptosis in colon cancer cells. Overexpression of TrxR1 in HCT116 cells reversed CTD-induced cell apoptosis and ROS increase. CTD treatment of mice implanted with colon cancer cells showed tumor growth inhibition and reduced TrxR1 activity and ROS level. In addition, it was observed that TrxR1 was significantly up-regulated in existing colon cancer gene database and clinically obtained colon cancer tissues. Our studies have uncovered the mechanism underlying the biological activity of CTD in colon cancer and suggest that targeting TrxR1 may prove to be beneficial as a treatment option. PMID- 29037869 TI - Uremic leontiasis ossea, a rare presentation of severe renal osteodystrophy secondary to hyperparathyroidism. AB - Renal osteodystrophy is a common complication of end-stage renal failure patients. It's most severe osseous complication is characterized by massive thickening of the cranial vault and facial bones, called uremic leontiasis ossea (ULO), with only few cases reported in the literature. A case of a 47-year-old female patient with ULO is presented. Physical examination showed enlargement of the jaws, which hinders proper ventilation and feeding. The computed tomography examination showed marked osseous proliferation in the jaws causing severe bony expansion and loss of normal bony architecture in the skull and the skull base. The most relevant clinical, histopathological and laboratory findings are discussed. The uremic leontiasis ossea causes significant aesthetic and functional changes. Correct diagnosis and management of the factors responsible for the development of bone lesions due to altered bone metabolism are key factors. The maxillofacial surgeon must have the proper knowledge of patient's medical condition and bone maturation status to address an adequate surgical strategy. PMID- 29037868 TI - The fungal neurotoxin penitrem A induces the production of reactive oxygen species in human neutrophils at submicromolar concentrations. AB - Penitrem A is a fungal neurotoxin that recurrently causes intoxication in animals, and occasionally also in humans. We have previously reported that penitrem A induced the production of reactive oxygen species (ROS) in rat cerebellar granule cells, opening for a new mechanism of action for the neurotoxin. The aim of this study was to examine the potential of penitrem A to induce ROS production in isolated human neutrophil granulocytes, and to study possible mechanisms involved. Penitrem A significantly increased the production of ROS in human neutrophils at concentrations as low as 0.25MUM (40% increase over basal levels), as measured with the DCF fluorescence assay. The EC50 determined for the production of ROS by penitrem A was 3.8MUM. The maximal increase in ROS production was approximately 330% over basal levels at a concentration of 12.5MUM. ROS formation was significantly inhibited by the antioxidant vitamin E (50MUM), the intracellular Ca+2 chelator BAPTA-AM (5MUM), the mitogen activated protein kinase kinase (MEK) 1/2 and 5 inhibitor U0126 (1 and 10MUM), the p38 mitogen activated protein kinase (MAPK) inhibitor SB203580 (1MUM), the c-Jun amino-terminal kinase (JNK) inhibitor SP600125 (10MUM), and the calcineurin inhibitors FK-506 and cyclosporine A (1.5 and 0.5MUM, respectively). These finding suggest that penitrem A is able to induce an increase in ROS production in neutrophils via the activation of several MAPK-signalling pathways. We suggest that this increase may partly explain the pathophysiology generated by penitrem A neuromycotoxicosis in both humans and animals. PMID- 29037870 TI - The antibacterial and anti-inflammatory investigation of Lawsonia Inermis-gelatin starch nano-fibrous dressing in burn wound. AB - The aim of this study was to develop a new bioactive gelatin-oxidized starch nanofibers containing Lawsonia Inermis (henna) for treating second-degree burn wounds. Continuous, smooth, and bead-free fibers were obtained when the gelatin starch ratio was 70/30.Additionally, the fiber dimeter was reduced with increasing henna content. The successful loading of henna in the gelatin-oxidized starch nanofibers was approved using Fourier transform infrared spectroscopy and Differential scanning calorimetry. Moreover, the addition of henna to the gelatin oxidized starch nanomatrix enhanced fibroblasts attachment, proliferation, collagen secretion, and antibacterial activity. In vivo studies showed that the nanofibers loaded with henna accelerated wound closure remarkably with the absence of detrimental suppurative reaction at the site of the burn wound. The CD68 immunohistochemical stained wound images showed that treating the burn wound sites with gelatin-oxidized starch-henna reduced the inflammatory response and macrophage numbers significantly. PMID- 29037871 TI - Moringa oleifera seed lectin inhibits Ehrlich ascites carcinoma cell growth by inducing apoptosis through the regulation of Bak and NF-kappaB gene expression. AB - A Moringa oleifera seed lectin (MOSL) was purified by using chitin column with the molecular mass of 17+/-1kDa. The lectin agglutinated mouse, cow and human erythrocytes and the hemagglutination activity was inhibited by methyl-alpha-d mannopyranoside, methyl-beta-d-galactopyranoside, lactose and glucose. The lectin exhibited 100% hemagglutination activity at the pH range from 8.0 to 9.0 and temperature range from 30 to 60 degrees C. Additionally, the lectin gradually lost its activity in the presence of urea but the activity abolish completely when treated with EDTA. MOSL showed mild toxicity against brine shrimp nauplii with a LC50 value of 131.0MUg/ml. Antiproliferative activity was studied against Ehrlich ascites carcinoma (EAC) cells and 71.08% cell growth inhibition was observed in vitro at 200MUg/ml. The lectin was injected (i.p.) into EAC mice at the doses of 2.0 and 4.0mg/kg/day for five consecutive days and 25.38% and 55% of cell growth inhibition was observed, respectively. MOSL caused the cell cycle arrest at G2/M phase as determined by FACS flow cytometry. The cell growth inhibition was due to the induction of apoptosis in the EAC cells which was confirmed by cell morphological study, caspase-3 inhibitor and activation of Bak and suppression of Bcl-2 and NF-kappaB genes expression. PMID- 29037872 TI - Preparation and characterization of microencapsulated DwPT trivalent vaccine using water soluble chitosan and its in-vitro and in-vivo immunological properties. AB - The paper explained the microencapsulation of three different antigenic materials viz. Diphtheria toxoid (DT), whole cell pertussis antigens (PT and FHA) and tetanus toxoid (TT) by coacervation method using water soluble chitosan as a polymer crosslinked by vanillin/TPP co-crosslinkers for the development of oral trivalent DwPT vaccine. Instrumental characterization of chitosan microspheres suggested specific interaction with vanillin/TPP, higher thermal stability, amorphous nature, spherical morphology with size less than 2MUm along with positive charge density offering mucoadhesive properties. Furthermore, PT and FHA showed higher encapsulation up to 94% followed by TT and DT. Cumulative release rate of DT was (68.47%), TT (73.67%), PT (43%) and FHA (53%). Release kinetics interpreted using DD solver program, indicated protein release followed first order kinetics and obeyed Korsmeyer-peppas model, stating fickian diffusion relates to diffusion, erosion and controlled release rate of the encapsulated toxoids. Application of formulations on caco-2 cell line showed negligible cytotoxic effect and efficient uptake of FITC labelled microspheres. The obtained in-vivo results suggests that the final trivalent DwPT formulation were having successful elicitation of both systemic (IgG) and mucosal (sIgA) immune response in balb/c mice. Overall studies indicated that DwPT formulation could be a suitable alternative to available injectable DaPT vaccine. PMID- 29037873 TI - Cross-linked ovalbumin catalyzed by polyphenol oxidase: Preparation, structure and potential allergenicity. AB - Ovalbumin (OVA) is described as one of the major allergens in hen's egg, and it is the most abundant protein in egg white. Enzyme-mediated covalent cross-linking of food proteins, can influence their structure and allergenicity. The aim of this study was to investigate the potential of polyphenol oxidase from Agaricus bisporus to cross-link OVA (CL-OVA) in the presence or absence of caffeic acid, followed by characterizing the structure and allergenicity of CL-OVA. A single factor experiment was designed to assess the optimum conditions for cross-linking of OVA by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Under the optimal conditions, structural changes in OVA were analyzed by circular dichroism, ultraviolet and fluorescence spectra. It was shown that CL-OVA became unordered and unfolded, and more tyrosine and tryptophan residues and hydrophobic groups were exposed onto the surface of molecules when compared to the native OVA. Enzyme-linked immunosorbent assay indicated that IgG and IgE binding abilities to OVA significantly reduced after cross-linking. All the findings demonstrated that enzymatic cross-linking in the presence of caffeic acid as a mediator may decrease the antigenicity and potential allergenicity, and the changes of the modified OVA were most likely a consequence of some changes or adjustment in the local conformation of OVA and the epitopes of OVA by cross linking. PMID- 29037874 TI - Preparation and optimization of chitosan-gelatin films for sustained delivery of lupeol for wound healing. AB - Lupeol entrapped chitosan-gelatin hydrogel (LCGH) films were prepared by solution cast method by blending chitosan and gelatin solution using glycerol as plasticizer, followed by crosslinking with glutaraldehyde. LCGH films were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), equilibrium water content (EWC), Water vapor transmission rate (WVTR) and in vitro release studies. SEM confirmed presence of the uniform porous network of both blank and LCGH films. The incorporation of lupeol in hydrogel was confirmed FTIR and DSC. The LCGH film was smooth, flexible, non-brittle and showed excellent swelling ability. EWC (85.40%) and WVTR (2228+/-31.8) met the condition of ideal wound dressing. The biological activity of lupeol was assessed by antioxidant and antibacterial assay. Antioxidant assay confirmed that lupeol and LCGH film have excellent antioxidant properties by scavenging both radicals at steady increasing rate which increases with time due to steady release of lupeol. Antibacterial activity of lupeol in LCGH film was found to be retained as assessed by disc diffusion method. Cell viability was evaluated by MTT assay with NIH/3T3 fibroblast cells. The MTT assay showed that the CGH film evidently offered acceptable cell viability and non-toxicity. These observations depicted that chitosan/gelatin hydrogel film can be an ideal delivery system for sustained released of lupeol and LCGH film for enhanced wound healing. PMID- 29037875 TI - Interplay between CedA, rpoB and double stranded DNA: A step towards understanding CedA mediated cell division in E. coli. AB - Cell division is compromised in DnaAcos mutant E. coli cells due to chromosome over-replication. In these cells, CedA acts as a regulatory protein and initiates cell division by a hitherto unknown mechanism. CedA, a double stranded DNA binding protein, interacts with various subunits of RNA polymerase complex, including rpoB. To reveal how this concert between CedA, rpoB and DNA brings about cell division in E. coli, we performed biophysical and in silico analysis and obtained mechanistic insights. Interaction between CedA and rpoB was shown by circular dichroism spectrometry and in silico docking experiments. Further, CedA and rpoB were allowed to interact individually to a selected DNA and their binding was monitored by fluorescence spectroscopy. The binding constants of these interactions as determined by BioLayer Interferometry clearly show that rpoB binds to DNA with higher affinity (KD2=<1.0E-12M) as compared to CedA (KD2=9.58E-09M). These findings were supported by docking analysis where 12 intermolecular H-bonds were formed in rpoB-DNA complex as compared to 4 in CedA DNA complex. Based on our data we propose that in E. coli cells chromosome over replication signals CedA to recruit rpoB to specific DNA site(s), which initiates transcription of cell division regulatory elements. PMID- 29037876 TI - Photobiomodulation of local alterations induced by BthTX-I, a phospholipase A2 myotoxin from Bothrops jararacussu snake venom: In vivo and in vitro evaluation. AB - This report describes the effect of photobiomodulation (PBM) on edema formation, leukocyte influx, prostaglandin E2 (PGE2) biosynthesis and cytotoxicity caused by bothropstoxin-I (BthTX-I), a phospholipase A2 (PLA2) homologue isolated from Bothrops jararacussu snake venom. Swiss mice or C2C12 cells were irradiated with low-level laser (LLL) at 685nm wavelength, an energy density of 4.6J/cm2 and an irradiation time of 13s. To evaluate the effect on edema formation and leukocyte influx, LLL was applied to the site of inoculation 30min and 3h post-injection. C2C12 cells were exposed to BthTX-I and immediately irradiated. PBM significantly reduced paw edema formation, peritoneal leukocyte influx and PGE2 synthesis, but increased the viability of C2C12 muscle cells after BthTX-I incubation. These findings demonstrate that PBM attenuated the inflammatory events induced by BthTX I. The attenuation of PGE2 synthesis could be an important factor in the reduced inflammatory response caused by laser irradiation. The ability of LLL irradiation to protect muscle cells against the deleterious effects of BthTX-I may indicate preservation of the plasma membrane. PMID- 29037877 TI - Unbreakable? An analysis of the fragility of randomized trials that support diabetes treatment guidelines. AB - AIMS: To analyze the robustness of randomized controlled trials (RCTs) referenced in the American Diabetes Association's Standards of Medical Care in Diabetes-2017 using the Fragility Index (FI) and Fragility Quotient (FQ). METHODS: We performed a systematic survey of all RCTs referenced in the Standards of Medical Care in Diabetes-2017. One investigator screened for trials and then recorded data from them, including sample size per group, event rate per group, and the dichotomous outcome analyzed by trialists. The FI and FQ for each outcome were calculated. Outcomes were then surveyed to determine whether the outcome used for analysis aligned with the guideline recommendation. RESULTS: Thirty-five RCTs were included in this study. Thirty-three of 35 (94%) FIs were based on the trial outcomes referenced in the clinical practice guideline. The median sample size was 2548 participants ([IQR], 522-6946). The median total number of events for each outcome was 403 (IQR, 86-969). Nineteen (54%) P Values were below 0.05, 8 (22.4%) were below 0.01. The median FI for all trials was 16 (IQR, 4-29). The median FQ was 0.007 (IQR, 0.003-0.014). FI was not related to risk of bias or Science Citation Index but was significantly correlated with sample size (for significant trials; r=0.77, P < .001, for neutral trials; r=0.76, P < .001). CONCLUSIONS: We found that the robustness of RCTs varied, but on the whole were not robust in nature. Most trials demonstrated a modest FI and FQ. As a result, conclusions drawn from these trials should take this information into account. PMID- 29037878 TI - Risperidone ameliorates cognitive deficits, promotes hippocampal proliferation, and enhances Notch signaling in a murine model of schizophrenia. AB - Antipsychotic agents have been reported to promote hippocampal neurogenesis and improve cognitive deficits; yet, the molecular mechanisms underlying these actions remain unclear. In the present study, we used a murine model of schizophrenia induced by 5-day intraperitoneal injection with the non-competitive N-methyl-d-aspartate receptor antagonist MK801 (0.3mg/kg/day) to assess cognitive behavioral deficits, changes in Notch signaling, and cellular proliferation in the hippocampus of adult male C57BL/6 mice after 2-week administration of risperidone (Rip, 0.2mg/kg/day) or vehicle. We then utilized in vivo stereotaxic injections of a lentivirus expressing a short hairpin RNA (shRNA) for Notch1 into the dentate gyrus to examine the role of Notch1 in the observed actions of Rip. We found that Rip ameliorated cognitive deficits and restored cell proliferation in MK801-treated mice in a manner associated with the up-regulation of Notch signaling molecules, including Notch1, Hes1, and Hes5. Moreover, these effects were abolished by pretreatment with Notch1 shRNA. Our results suggest that the ability of Rip to improve cognitive function in schizophrenia is mediated in part by Notch signaling. PMID- 29037879 TI - A risk-based approach for assessing the recycling potential of an alkaline waste material as road sub-base filler material. AB - In this work we present an integrated risk-based approach that can be used to evaluate the recycling potential of an alkaline waste material such as incineration bottom ash (BA) as unbound material for road sub-base construction. This approach, which is aimed at assessing potential risks to the groundwater resource (in terms of drinking water quality) and human health associated to the leaching of contaminants from the BA, couples the results of leaching tests for the estimation of source concentrations with the fate and transport models usually adopted in risk assessment procedures. The effects of weathering and of the type of leaching test employed to evaluate eluate concentrations were assessed by carrying out different simulations using the results of laboratory leaching tests. Specifically, pH-dependence and column percolation leaching tests were performed on freshly collected and 1-year naturally weathered BA samples produced from a grate-fired incineration plant treating Refuse Derived Fuel (RDF). To evaluate a broad span of possible scenario conditions, a Monte Carlo analysis was performed running 5000 simulations, randomly varying the input parameters within the ranges expected in the field. In nearly all the simulated conditions, the concentrations of contaminants in the groundwater for the specific type of BA tested in this work were well below EU and WHO drinking water quality criteria. Nevertheless, some caution should be paid in the case of the establishment of acidic conditions in the field since in this case the concentration of some elements (i.e. Al, Pb and Zn) is expected to exceed threshold values. In terms of risks to human health, for the considered utilization scenario the probability of exceeding the acceptable reference dose for water ingestion was usually less than 1% (except for Cr and Pb for which the probability was lower than 3.5% and 7%, respectively). PMID- 29037880 TI - Monitoring of microbial communities in anaerobic digestion sludge for biogas optimisation. AB - This study characterised and compared the microbial communities of anaerobic digestion (AD) sludge using three different methods - (1) Clone library; (2) Pyrosequencing; and (3) Terminal restriction fragment length polymorphism (T RFLP). Although high-throughput sequencing techniques are becoming increasingly popular and affordable, the reliance of such techniques for frequent monitoring of microbial communities may be a financial burden for some. Furthermore, the depth of microbial analysis revealed by high-throughput sequencing may not be required for monitoring purposes. This study aims to develop a rapid, reliable and economical approach for the monitoring of microbial communities in AD sludge. A combined approach where genetic information of sequences from clone library was used to assign phylogeny to T-RFs determined experimentally was developed in this study. In order to assess the effectiveness of the combined approach, microbial communities determined by the combined approach was compared to that characterised by pyrosequencing. Results showed that both pyrosequencing and clone library methods determined the dominant bacteria phyla to be Proteobacteria, Firmicutes, Bacteroidetes, and Thermotogae. Both methods also found that sludge A and B were predominantly dominated by acetogenic methanogens followed by hydrogenotrophic methanogens. The number of OTUs detected by T-RFLP was significantly lesser than that detected by the clone library. In this study, T-RFLP analysis identified majority of the dominant species of the archaeal consortia. However, many of the more highly diverse bacteria consortia were missed. Nevertheless, the combined approach developed in this study where clone sequences from the clone library were used to assign phylogeny to T-RFs determined experimentally managed to accurately predict the same dominant microbial groups for both sludge A and sludge B, as compared to the pyrosequencing results. Results showed that the combined approach of clone library and T-RFLP accurately predicted the dominant microbial groups and thus is a reliable and more economical way to monitor the evolution of microbial systems in AD sludge. PMID- 29037881 TI - Food waste behaviour at the household level: A conceptual framework. AB - One-third of the world produced food is wasted according to FAO (2011). The aim of this paper is to have an in-depth analysis of consumers' behaviours regarding food waste in Egypt. A conceptual framework is developed that brings many factors considered in the recent literature in one model to be tested using structural equation modeling. Results indicate that the incorporated factors were found statistically significant. Additionally, the individual's perception about food waste was related with food quantities wasted at the household level. The findings suggest considering these factors when developing new policies and campaigns for food waste reduction. PMID- 29037882 TI - Stabbing plus cupping: A less invasive but more powerful sucking approach for superficial abscesses. PMID- 29037883 TI - Letter to the editor on "Open versus closed lateral internal anal sphincterotomy in the management of chronic anal fissures: A prospective randomised study". Our results in the patients who undergone to secondary healing following the fissure tract excision for primary chronic anal fissure. PMID- 29037884 TI - Could post-thyroidectomy bleeding be the clue to modify the concept of postoperative drainage? A prospective randomized controlled study. AB - BACKGROUND/OBJECTIVE: To unveil the real effect of surgical drains on the outcomes of thyroidectomy for benign thyroid disorders. METHODS: A prospective randomized study was conducted at Abha Private Hospital, Saudi Arabia on 108 patients suffered from benign thyroid disorders undergoing elective thyroidectomy from 1 August 2015 to 28 February 2017. Patients were allocated randomly into drainage group (A) and non-drainage group (B). The demographic data, operation (type and duration), postoperative complications, histopathological results and length of stay were assessed, documented and statistically verified to check its significance. RESULTS: A total of 108 patients were enrolled in the study; 94 females and 14 males with mean age of 38.02 years, two patients developed hematoma (1.85%); one in each group and another two patients had seroma with no significant difference between both groups, the mean length of stay was significantly higher in group (A) (p = 0.001). CONCLUSION: This prospective study verified that routine drainage adds no significant advantage in the prevention of post-thyroidectomy bleeding, but it prolongs hospitalization. This aids in changing the concept from the "wide" use of drains into the "wise" use in selected patients with risk factors of bleeding. PMID- 29037885 TI - National trends and outcomes of cardiac arrest in opioid overdose. AB - AIM: To investigate the epidemiology and outcomes of cardiac arrests associated with opioid overdoses. Recent data suggest that drug overdoses are responsible for more deaths than motor vehicle crashes or firearms in the United States each year, with opioids being involved in majority of drug overdose deaths. Despite the potential for opioids to cause cardiac arrest, few studies have examined this association. PATIENTS AND METHODS: Using data from National (Nationwide) Inpatient Sample database from years 2000-2013, we identified hospitalizations with drug overdoses using ICD-9-CM codes. We further identified those with opioid overdose and those with cardiac arrest. We then assessed the proportion and trends of cardiac arrest and associated mortality in patients with opioid overdose. We also investigated if opioid overdose is an independent risk factor for cardiac arrest and mortality. RESULTS: Of 3,835,448 United States drug overdose hospitalizations, 16.4% were associated with prescription opioid overdose and 2.3% with heroin overdose. Cardiac arrest was most common with heroin overdose, followed by prescription opioids and least common in non-opioid overdose (3.8% vs 1.4% vs 0.6%; p<0.001). Heroin overdoses have seen the greatest increase in rate of cardiac arrests. Both prescription opioids and heroin overdose were independent risk factors for cardiac arrest and mortality in these patients. CONCLUSIONS: Cardiac arrest is more common in patients with opioid overdoses in comparison to non-opioid overdoses. The rate of cardiac arrest is increasing disproportionately in patients with opioid overdoses. Opioid overdoses are independent risk factors for both cardiac arrest and mortality in patients with overdoses. PMID- 29037886 TI - Comparative effectiveness of antiarrhythmics for out-of-hospital cardiac arrest: A systematic review and network meta-analysis. AB - BACKGROUND: Despite their wide use in the prehospital setting, randomized control trials (RCTs) have failed to demonstrate that any antiarrhythmic agent improves survival to hospital discharge following out-of-hospital cardiac arrest. OBJECTIVE: To assess the use of antiarrhythmic drugs for patients experiencing out-of-hospital cardiac arrest (OHCA). METHODS: Electronic searches of Medline, EMBASE and Cochrane Central Register of Controlled Trials were conducted and reference lists were hand-searched. Randomized controlled trials (RCTs) investigating the use of antiarrhythmic agents administered during resuscitation for adult (>=18years) patients suffering non-traumatic OHCA were included. Direct and indirect evidence were combined in a network meta-analysis (NMA) using a frequentist approach with fixed-effects models and reported as relative risks (RR) with 95% confidence intervals (CIs). For each pairwise comparison, the certainty of direct, indirect, and network evidence was assessed using the GRADE approach. RESULTS: 8 RCTs involving 4464 patients were combined to compare the effectiveness of 5 antiarrhythmic agents and placebo administered during resuscitation following OHCA. Lidocaine was associated with a statistically significant increase in ROSC compared to placebo (1.15; 95% CI: 1.03-1.28) and was also superior to bretylium (1.61; 95% CI: 1.00-2.60) for ROSC. When compared to placebo, both amiodarone (1.18; 95% CI: 1.08-1.30) and lidocaine (1.18; 95% CI: 1.07-1.30) were associated with a statistically significant increase in survival to hospital admission. However, no antiarrhythmic was statistically more effective than placebo for survival to hospital discharge or neurologically intact survival, and no antiarrhythmic was convincingly superior to any other for any outcome. CONCLUSIONS: Amiodarone and lidocaine were the only agents associated with improved survival to hospital admission in the NMA. For the outcomes most important to patients, survival to hospital discharge and neurologically intact survival, no antiarrhythmic was convincingly superior to any other or to placebo. PMID- 29037887 TI - Depression and related risk factors among patients with type 2 diabetes mellitus, Jazan area, KSA: A cross-sectional study. AB - PURPOSE: To determine the prevalence of depression and related risk factors among type 2 diabetes mellitus patients (T2DM) in Jazan area, Saudi Arabia. METHOD: A cross sectional, self-administered questionnaire study was conducted among T2DM patients in Jazan area, Saudi Arabia. A total of 385 patients were selected at randomly. The Patient Health Questionnaire (PHQ-9) was utilized to measure symptoms and signs of depression. RESULTS: The overall prevalence of depression among T2DM patients was 37.6%. Of them, 24.2% were mildly depressed, 9.6% were moderately severely depressed, and 4.2% were severely depression. Significant predictors of depression include the presence of diabetic foot (P=0.000), cardio vascular diseases (P=0.000), eye complication (P=0.073), and erectile dysfunction (P=0.090). The prevalence of depression was not significantly associated with the age (P=0.375) and gender (P=0.374). Similarly no association was found with duration of diabetes (P=0.475) and HbA1c (P=0.555). CONCLUSION: The study revealed that diabetes complications are strong predictors of the rate of depression among T2DM patients. Therefore, early depression screening is needed to improve the quality of life of diabetic patients. PMID- 29037888 TI - Preferred reporting items for overviews of systematic reviews including harms checklist: a pilot tool to be used for balanced reporting of benefits and harms. AB - OBJECTIVES: An overview of systematic reviews (OoSRs) is a study designed to synthesize multiple evidence from existing systematic reviews on a specific domain. The aim of this paper was to offer a pilot version checklist with Preferred Reporting Items for OoSRs (PRIO-harms) to promote a more balanced reporting of benefits and harms in OoSRs of health care interventions. STUDY DESIGN AND SETTING: The included items were developed by combining key features from health care OoSRs designs with recommendations from statements of other relevant checklists and pertinent methodological review articles. Two raters independently used the PRIO-harms checklist to assess a sample of 20 OoSRs. RESULTS: The PRIO-harms tool consists of a 27-item (56 (sub-)items in total) checklist and is accompanied by a five-stage process flow diagram (identification, screening, eligibility, inclusion, and separation of relevant studies). The mean interrater reliability (Gwet's AC1 statistic) between reviewers was 0.90 (95% confidence interval: 0.88, 0.92) indicating a very good agreement. CONCLUSION: The PRIO-harms tool can be used in every OoSRs that addresses health care interventions. This instrument will assist overview authors to improve completeness and transparency of research reporting with emphasis on harms. However, it might benefit from critical review and further validation from experts and research teams that produce OoSRs. PMID- 29037889 TI - Optimising the emergency to ward handover process: A mixed methods study. AB - BACKGROUND: The effective handover of patient health data from the emergency department to other hospital units is integral for the continuity of patient care. Yet no handover process has been identified as superior to others within this context. METHODS: This study within a regional Australian hospital employed mixed methods approach including focus groups and key stakeholder consultation to develop a handover form appropriate for patient transfer from the emergency department to a variety of clinical areas. Paper-based surveys and audits were then employed to evaluate the implementation and understand staff perceptions of the form. RESULTS: The implementation of a patient handover form within the emergency setting was well received. Participants indicated that the form is clear, well designed and easy to navigate. It provided prompts to standardise their clinical handover and increased their accountability and responsibility within this process. CONCLUSIONS: To deliver an optimal nursing handover from the emergency department to various wards handovers should be structured and provide standardised content. The positive reception and use of this form provides evidence that a structured handover process can ensure standardisation of emergency department to ward nursing handovers. PMID- 29037890 TI - Double-Expressor Lymphoma Is Associated with Poor Outcomes after Allogeneic Hematopoietic Cell Transplantation. AB - Double-expressor lymphoma (DEL) is a diffuse large B cell lymphoma that exhibits co-expression of MYC and BCL2 proteins by immunohistochemistry. Patients with double-expressor lymphoma have a poor prognosis after standard chemoimmunotherapy or after high-dose chemotherapy with autologous transplantation, but the prognostic impact of DEL after allogeneic hematopoietic cell transplantation has not been well characterized. We retrospectively analyzed 60 consecutive patients with de novo diffuse large B cell lymphoma or transformed follicular lymphoma who underwent allogeneic transplantation at our center and had available immunohistochemistry data. Thirty-seven patients (62%) had DEL. The 2-year progression-free and overall survival rates were lower in patients with DEL than in those without DEL (20% versus 78%; overall P <.001 and 46% versus 77%; overall P = .016, respectively). The cumulative incidence of disease progression at 2 years was higher in patients with DEL (60% versus 13%; overall P = .005). The cumulative incidence of nonrelapse mortality did not differ statistically in the 2 groups. Even in patients with DEL and chemosensitive disease at transplantation, the 2-year progression-free survival rate was only 27% due to early disease progression. Multivariate analysis showed associations between DEL and increased risks of progression-free survival events (hazard ratio [HR], 4.58; 95% confidence interval [CI], 2.07-10.2; P <.001), overall mortality (HR, 2.29; 95% CI, 1.03-5.09; P = .042) and disease progression (HR, 3.60; 95% CI, 1.38 9.44; P = .009). Patients with DEL had poor outcomes after allogeneic transplantation. Innovative strategies are needed to improve outcomes in this population. PMID- 29037891 TI - Chemotherapy-Based Stem Cell Mobilization Does Not Result in Significant Paraprotein Reduction in Myeloma Patients in the Era of Novel Induction Regimens. AB - Novel induction agents markedly improved remission rates in multiple myeloma (MM), and the continued use of chemotherapy for CD34+ stem cell mobilization (SCM) has been questioned. We examined the additional effect of chemotherapy in SCM regarding remission status/morbidity. We reviewed 236 consecutive MM patients (aged 36 to 75 years) with first autologous stem cell transplantation from January 2009 to March 2016 after chemotherapy-based SCM. Responses were measured by changes in intact Ig and free light chain levels before and after chemomobilization (International Myeloma Working Group [IMWG] criteria). Most patients (225/236, 95.3%) received novel induction regimens, which were bortezomib-based (n = 223) and/or lenalidomide-based (n = 19). Most patients (170/190, 89.5%) achieved at least partial remission postinduction and pre-SCM. Stem cells were mobilized with granulocyte colony-stimulating factor and cyclophosphamide-based (212/227, 93.4%) or etoposide-based (15/227, 6.6%) regimens. There were insignificant changes in serum Ig and free light chain levels before and after chemomobilization either in the whole cohort or subgroups. Significant improvements of the IMWG remission status were documented in only 7 of 236 patients (3.0%). Sixty-seven patients (28.4%) developed chemotherapy-related complications (neutropenic fever, sepsis, and others), resulting in 9 hospitalizations (3.8%). Our study suggests that although causing significant morbidity, chemotherapy-based mobilization fails to improve remission status. The value of incorporating additional chemotherapy for SCM is thus not evident. PMID- 29037892 TI - Hybrid-spheroids incorporating ECM like engineered fragmented fibers potentiate stem cell function by improved cell/cell and cell/ECM interactions. AB - : Extracellular matrix (ECM) microenvironment is critical for the viability, stemness, and differentiation of stem cells. In this study, we developed hybrid spheroids of human turbinate mesenchymal stem cells (hTMSCs) by using extracellular matrix (ECM) mimicking fragmented fibers (FFs) for improvement of the viability and functions of hTMSCs. We prepared FFs with average size of 68.26 um by partial aminolysis of poly L-lactide (PLLA) fibrous sheet (FS), which was coated with polydopamine for improved cell adhesion. The proliferation of hTMSCs within the hybrid-spheroids mixed with fragmented fibers was significantly increased as compared to that from the cell-only group. Cells and fragmented fibers were homogenously distributed with the presence of pore like empty spaces in the structure. LOX-1 staining revealed that the hybrid-spheroids improved the cell viability, which was potentially due to enhanced transport of oxygen through void space generated by engineered ECM. Transmission electron microscopy (TEM) analysis confirmed that cells within the hybrid-spheroid formed strong cell junctions and contacts with fragmented fibers. The expression of cell junction proteins including connexin 43 and E-cadherin was significantly upregulated in hybrid-spheroids by 16.53 +/- 0.04 and 28.26 +/- 0.11-fold greater than that from cell-only group. Similarly, expression of integrin alpha2, alpha5, and beta1 was significantly enhanced at the same group by 25.72 +/- 0.13, 27.48 +/- 0.49, and 592.78 +/- 0.06-fold, respectively. In addition, stemness markers including Oct 4, Nanog, and Sox2 were significantly upregulated in hybrid-spheroids by 96.56 +/ 0.06, 158.95 +/- 0.06, and 115.46 +/- 0.47-fold, respectively, relative to the cell-only group. Additionally, hTMSCs within the hybrid-spheroids showed significantly greater osteogenic differentiation under osteogenic media conditions. Taken together, our hybrid-spheroids can be an ideal approach for stem cell expansion and serve as a potential carrier for bone regeneration. STATEMENT OF SIGNIFICANCE: Cells are spatially arranged within extracellular matrix (ECM) and cell/ECM interactions are crucial for cellular functions. Here, we developed a hybrid-spheroid system incorporating engineered ECM prepared from fragmented electrospun fibers to tune stem cell functions. Conventionally prepared cell spheroids with large diameters (>200 um) is often prone to hypoxia. In contrast, the hybrid-spheroids significantly enhanced viability and proliferation of human turbinate mesenchymal stem cells (hTMSCs) as compared to spheroid prepared from cell only. Under these conditions, the presence of fragmented fibers also improved maintenance of stemness of hTMSCs for longer time cultured in growth media and demonstrated significantly greater osteogenic differentiation under osteogenic media conditions. Thus, the hybrid-spheroids can be used as a delivery carrier for stem cell based therapy or a 3D culture model for in vitro assay. PMID- 29037893 TI - Gelatin promotes rapid restoration of the blood brain barrier after acute brain injury. AB - : Gelatin coating of brain implants is known to provide considerable benefits in terms of reduced inflammatory sequalae and long-term neuroprotective effects. However, the mechanisms for gelatin's protective role in brain injury are still unknown. To address this question, cellular and molecular markers were studied with quantitative immunohistochemical microscopy at acute (<2hours, 1, 3days), intermediate (1-2 weeks) and long-term time points (6 weeks) after transient insertion of stainless steel needles into female rat cortex cerebri with or without gelatin coating. Compared to non-coated controls, injuries caused by gelatin coated needles showed a significantly faster resolution of post-stab bleeding/leakage and differential effects on different groups of microglia cells. While similar levels of matrix metalloproteinase (MMP-2 and MMP-9, two gelatinases) was found for coated and noncoated needle stabs during the first week, markedly increased levels of both MMPs was seen for gelatin-coated but not non-coated needle stabs after 2weeks. Neuronal populations and activated astrocytes were largely unaffected. In conclusion, the beneficial effects of gelatin may be the combined results of faster healing of the blood brain barrier curtailing leakage of blood borne molecules/cells into brain parenchyma and to a modulation of the microglial population response favoring restitution of the injured tissue. These findings present an important therapeutic potential for gelatin coatings in various disease, injury and surgical conditions. STATEMENT OF SIGNIFICANCE: The neural interfaces field holds great promise to enable elucidation of neural information processing and to develop new implantable devices for stimulation based therapy. Currently, this field is struggling to find solutions for reducing tissue reactions to implanted micro and nanotechnology. Prior studies have recently shown that gelatin coatings lower activation of digestive microglia and mitigate the ubiquitous loss of neurons adjacent to implanted probes, both of which impede implant function. The underlying mechanisms remain to be elucidated, however. Our findings demonstrate for the first time that gelatin has a significant effect on the BBB by promoting rapid restoration of integrity after injury. Moreover, gelatin alters microglia phenotypes and modulates gelatinase activity for up to 2weeks favoring anti inflammation and restoration of the tissue. Given the key importance of the BBB for normal brain functions, we believe our findings have substantial significance and will be highly interesting to researchers in the biomaterial field. PMID- 29037894 TI - Indentation mapping revealed poroelastic, but not viscoelastic, properties spanning native zonal articular cartilage. AB - : Osteoarthrosis is a debilitating disease affecting millions, yet engineering materials for cartilage regeneration has proven difficult because of the complex microstructure of this tissue. Articular cartilage, like many biological tissues, produces a time-dependent response to mechanical load that is critical to cell's physiological function in part due to solid and fluid phase interactions and property variations across multiple length scales. Recreating the time-dependent strain and fluid flow may be critical for successfully engineering replacement tissues but thus far has largely been neglected. Here, microindentation is used to accomplish three objectives: (1) quantify a material's time-dependent mechanical response, (2) map material properties at a cellular relevant length scale throughout zonal articular cartilage and (3) elucidate the underlying viscoelastic, poroelastic, and nonlinear poroelastic causes of deformation in articular cartilage. Untreated and trypsin-treated cartilage was sectioned perpendicular to the articular surface and indentation was used to evaluate properties throughout zonal cartilage on the cut surface. The experimental results demonstrated that within all cartilage zones, the mechanical response was well represented by a model assuming nonlinear biphasic behavior and did not follow conventional viscoelastic or linear poroelastic models. Additionally, 10% (w/w) agarose was tested and, as anticipated, behaved as a linear poroelastic material. The approach outlined here provides a method, applicable to many tissues and biomaterials, which reveals and quantifies the underlying causes of time-dependent deformation, elucidates key aspects of material structure and function, and that can be used to provide important inputs for computational models and targets for tissue engineering. STATEMENT OF SIGNIFICANCE: Elucidating the time-dependent mechanical behavior of cartilage, and other biological materials, is critical to adequately recapitulate native mechanosensory cues for cells. We used microindentation to map the time-dependent properties of untreated and trypsin treated cartilage throughout each cartilage zone. Unlike conventional approaches that combine viscoelastic and poroelastic behaviors into a single framework, we deconvoluted the mechanical response into separate contributions to time-dependent behavior. Poroelastic effects in all cartilage zones dominated the time-dependent behavior of articular cartilage, and a model that incorporates tension-compression nonlinearity best represented cartilage mechanical behavior. These results can be used to assess the success of regeneration and repair approaches, as design targets for tissue engineering, and for development of accurate computational models. PMID- 29037895 TI - In situ depot formation of anti-HIV fusion-inhibitor peptide in recombinant protein polymer hydrogel. AB - : Most peptide drugs have short half-lives, necessitating frequent injections that may induce skin sensitivity reactions; therefore, versatile prolonged release delivery platforms are urgently needed. Here, we focused on an oxidatively and thermally responsive recombinant elastin-like polypeptide with periodic cysteine residues (cELP), which can rapidly and reversibly form a disulfide cross-linked network in which peptide can be physically incorporated. As a model for proof of concept, we used enfuvirtide, an antiretroviral fusion inhibitor peptide approved for treatment of human immunodeficiency virus (HIV) infection. cELP was mixed with enfuvirtide and a small amount of hydrogen peroxide (to promote cross-linking), and the soluble mixture was injected subcutaneously. The oxidative cross-linking generates a network structure, causing the mixture to form a hydrogel in situ that serves as an enfuvirtide depot. We fabricated a series of enfuvirtide-containing hydrogels and examined their stability, enfuvirtide-releasing profile and anti-HIV potency in vitro. Among them, hydrophobic cELP hydrogel provided effective concentrations of enfuvirtide in blood of rats for up to 8 h, and the initial concentration peak was suppressed compared with that after injection of enfuvirtide alone. cELP hydrogels should be readily adaptable as platforms to provide effective depot systems for delivery of other anti-HIV peptides besides enfuvirtide. STATEMENT OF SIGNIFICANCE: In this paper, we present an anti-HIV peptide delivery system using oxidatively and thermally responsive polypeptides that contain multiple periodic cysteine residues as an injectable biomaterial capable of in situ self-gelation, and we demonstrate its utility as an injectable depot capable of sustained release of anti-HIV peptides. The novelty of this work stems from the platform employed to provide the depot encapsulating the peptide drugs (without chemical conjugation), which consists of rationally designed, genetically engineered polypeptides that enable the release rate of the peptide drugs to be precisely controlled. PMID- 29037896 TI - Manipulation of the response of human endothelial colony-forming cells by focal adhesion assembly using gradient nanopattern plates. AB - : Nanotopography plays a pivotal role in the regulation of cellular responses. Nonetheless, little is known about how the gradient size of nanostructural stimuli alters the responses of endothelial progenitor cells without chemical factors. Herein, the fabrication of gradient nanopattern plates intended to mimic microenvironment nanotopography is described. The gradient nanopattern plates consist of nanopillars of increasing diameter ranges [120-200 nm (GP 120/200), 200-280 nm (GP 200/280), and 280-360 nm (GP 280/360)] that were used to screen the responses of human endothelial colony-forming cells (hECFCs). Nanopillars with a smaller nanopillar diameter caused the cell area and perimeter of hECFCs to decrease and their filopodial outgrowth to increase. The structure of vinculin (a focal adhesion marker in hECFCs) was also modulated by nanostructural stimuli of the gradient nanopattern plates. Moreover, Rho-associated protein kinase (ROCK) gene expression was significantly higher in hECFCs cultured on GP 120/200 than in those on flat plates (no nanopillars), and ROCK suppression impaired the nanostructural-stimuli-induced vinculin assembly. These results suggest that the gradient nanopattern plates generate size-specific nanostructural stimuli suitable for manipulation of the response of hECFCs, in a process dependent on ROCK signaling. This is the first evidence of size-specific nanostructure-sensing behavior of hECFCs. SIGNIFICANCE: Nano feature surfaces are of growing interest as materials for a controlled response of various cells. In this study, we successfully fabricated gradient nanopattern plates to manipulate the response of blood-derived hECFCs without any chemical stimulation. Interestingly, we find that the sensitive nanopillar size for manipulation of hECFCs is range between 120 nm and 200 nm, which decreased the area and increased the filopodial outgrowth of hECFCs. Furthermore, we only modulate the nanopillar size to increase ROCK expression can be an attractive method for modulating the cytoskeletal integrity and focal adhesion of hECFCs. PMID- 29037897 TI - Overcoming multiple gastrointestinal barriers by bilayer modified hollow mesoporous silica nanocarriers. AB - : Oral administration of nanocarriers remains a significant challenge in the pharmaceutical sciences. The nanocarriers must efficiently overcome multiple gastrointestinal barriers including the harsh gastrointestinal environment, the mucosal layer, and the epithelium. Neutral hydrophilic surfaces are reportedly necessary for mucus permeation, but hydrophobic and cationic surfaces are important for efficient epithelial absorption. To accommodate these conflicting surface property requirements, we developed a strategy to modify nanocarrier surfaces with cationic cell-penetrating peptides (CPP) concealed by a hydrophilic succinylated casein (SCN) layer. SCN is a mucus-inert natural material specifically degraded in the intestine, thus protecting nanocarriers from the harsh gastric environment, facilitating their mucus permeation, and inducing exposure of CPPs after degradation for further effective transepithelial transport. Quantum dots doped hollow silica nanoparticles (HSQN) with a diameter around 180 nm was used as the nanocarrier and demonstrated as high as 50% loading efficacy of paclitaxel, a model drug with poor solubility and permeability. The dual layer modification strategy prevented premature drug leakage in stomach and maintained high mucus permeation (the trajectory spanned 9-fold larger area than single CPP modification). After intestinal degradation of SCN by trypsin, these nanocarriers exhibited strong interaction with epithelial membranes and a 5-fold increase in cellular uptake. Significant transepithelial transport and intestinal distribution were also observed for this dual-modified formulation. A pharmacokinetics study on the paclitaxel-loaded nanocarrier found 40% absolute bioavailability and 7.8-fold higher AUC compared to oral Taxol(r). Compared with single CPP modified nanocarriers, our formulation showed increased in vivo efficacy and tumor accumulation of the model drug with negligible intestinal toxicity. In summary, sequential modification with CPP and SCN layers on HSQN offers a potential strategy to overcome the multiple barriers of the gastrointestinal tract. STATEMENT OF SIGNIFICANCE: Oral administration of nanocarriers remains a big challenge due to the multiple gastrointestinal barriers. In order to achieve both strong mucus permeation and efficient epithelial absorption, we modified the surface of silica nanoparticles with two layers: cell penetrating peptide (CPP) layer and succinylated casein (SCN) layer. The newly developed nanoformulations are demonstrated to have the following advantages: 1) versatile carrier with easy preparation, 2) high drug loading especially for poor soluble molecules, 3) reduced drug leakage in the stomach, 4) effective mucus penetration and transepithelial transport and 5) good biocompatibility, which in all indicate a great potential of this bilayer modification strategy to facilitate the oral delivery of therapeutic agents. PMID- 29037898 TI - Zika virus and autoimmunity. One-step forward. AB - Zika virus (ZIKV) infection has been associated with the development of Guillain Barre syndrome (GBS) and idiopathic thrombocytopenic purpura (ITP). Whether ZIKV infection is related to other autoimmune diseases is unknown. Therefore, an association study to evaluate rheumatic and thyroid autoimmunity in patients with ZIKV disease was conducted through a panel of 14 autoantibodies. In addition, a literature review on ZIKV, and GBS and ITP was performed. Our results disclosed a lack of association of rheumatoid and thyroid autoimmunity with ZIKV disease. A total of 272 cases of GBS related to ZIKV were retrieved from the literature, the majority of them being males (54.8%). Electrophysiological findings indicated acute inflammatory demyelinating polyneuropathy as the most frequent subphenotype (75.7%). Up to date, twenty-four cases of ITP in patients with ZIKV disease have been published. Although a few fatal cases have been observed, most of the reported patients responded well to immunomodulatory treatment. A review of the mechanisms incriminated into the development of autoimmune phenomenon in ZIKV disease indicates molecular mimicry as the most plausible one. Nevertheless, more research aimed at deciphering ZIKV disease pathogenesis and its relationship with autoimmunity is warranted. PMID- 29037899 TI - The management of first-line biologic therapy failures in rheumatoid arthritis: Current practice and future perspectives. AB - The introduction of biologic disease-modifying anti-rheumatic drugs (bDMARDs) has dramatically changed the management of rheumatoid arthritis (RA). However, in a real-life setting about 30-40% of bDMARD treated patients experience drug discontinuation because of either inefficacy or adverse events. According to international recommendations, to date the best strategy for managing first-line bDMARD failures has not been defined yet and available data (especially on TNF inhibitors [TNFis]) seem to drive toward a personalized approach for the individual patient. Some TNFi partial responders may benefit from optimization of concomitant methotrexate therapy or from switching to a different concomitant sDMARD such as leflunomide. Conversely, apart from infliximab, TNFi dose escalation seems to be poor efficacious and poor cost-effective compared with alternative strategies. Albeit counterintuitive, the use of a second TNFi after the failure of the first-one (cycling strategy) is supported by clear evidences and has become widespread in the 2000s as the result of the limited alternative options till the introduction of bDMARDs with a mechanism of action other than TNF blockade. Nowadays, the use of abatacept, rituximab, tocilizumab, or JAK inhibitors as second-line agent (swapping strategy) is strongly supported by RCTs and real-life experiences. In the absence of head-to-head trials directly comparing these two strategies, meta-analyses of separated RCTs failed to find significant differences in favor of one or another choice. However, results from most observational studies, including well designed prospective pragmatic randomised analyses, demonstrated the superiority of swapping over cycling approach, whereas only few studies reported a comparable effectiveness. In this review, we aimed to critically analyze all the potential therapeutic options for the treatment of first-line bDMARD failures in order to provide a comprehensive overview of available strategies to be applied in clinical practice. PMID- 29037900 TI - Autoimmune comorbidity in chronic spontaneous urticaria: A systematic review. AB - BACKGROUND AND OBJECTIVE: Numerous autoimmune diseases (AIDs) have been linked to chronic spontaneous urticaria (CSU). Here, we provide the first extensive and comprehensive evaluation of the prevalence of AIDs in patients with CSU and vice versa. METHODS: A Pubmed and Google Scholar search was performed to identify studies reporting the prevalence of various AIDs in CSU and vice versa published before April 2017. RESULTS: The prevalence of individual AIDs in CSU is increased (>=1% in most studies vs <=1% in the general population). AIDs with relatively high prevalence in the general population are also quite common in CSU patients, whereas those with low prevalence remain a rare finding in CSU. The rates of comorbidity in most studies were >=1% for insulin-dependent diabetes mellitus, rheumatoid arthritis (RA), psoriasis and celiac disease (CD), >=2% for Graves' disease, >=3% for vitiligo, and >=5% for pernicious anemia and Hashimoto's thyroiditis. Organ-specific AIDs are more prevalent in CSU than systemic (multiorgan or non organ-specific) AIDs. >2% of CSU patients have autoimmune polyglandular syndromes encompassing autoimmune thyroid disease (ATD) and vitiligo or pernicious anemia. Antithyroid and antinuclear antibodies are the most prevalent AID-associated autoantibodies in CSU. >15% of CSU patients have a positive family history for AIDs. The prevalence of urticarial rash in AID patients is >1% in most studies. This rash is more prevalent in eosinophilic granulomatosis with polyangiitis, ATD, systemic lupus erythematosus, RA and CD. CONCLUSIONS: CSU patients have an increased risk of AIDs, especially adult female patients and those with a positive family history and a genetic predisposition for AIDs, who should be screened for signs and symptoms of AIDs. PMID- 29037901 TI - HLA-DRB1 alleles and juvenile idiopathic arthritis: Diagnostic clues emerging from a meta-analysis. AB - Juvenile Idiopathic Arthritis (JIA) is characterized with a variable pattern of articular involvement and systemic symptoms and, thus, it has been classified in several subtypes. Genetic predisposition to JIA is mainly due to HLA class II molecules (HLA-DRB1, HLA-DPB1), although HLA class I molecules and non-HLA genes have been implicated, too. Here, we carried out a meta-analysis including selected studies designed to assess HLA genetic background of JIA patients, compared to healthy controls; particularly, we focused our attention on HLA-DRB1. In summary, our meta-analysis showed four main findings regarding HLA-DRB1 locus as a genetic factor of JIA: i) HLA-DRB1*08 is a strong factor predisposing to JIA, both for oligo-articular and poly-articular forms (oJIA>pJIA); ii) HLA DRB1*01 and HLA-DRB1*04 may be involved in the genetic predisposition of Rheumatoid Factor (RF) positive forms of JIA; iii) HLA-DRB1*11 was confirmed to be predisposing to oligo-articular JIA; iv) HLA-DRB1*04 was confirmed to have a role in systemic JIA. Importantly, RF positivity seems to select the JIA clinical subset with the strongest immunogenetic similarities with adult rheumatoid arthritis. PMID- 29037902 TI - Cogan syndrome: Characteristics, outcome and treatment in a French nationwide retrospective study and literature review. AB - BACKGROUND: Cogan syndrome is mainly treated with steroids. We aimed to determine the place of DMARDs and biologic-targeted treatments. PATIENTS AND METHODS: We conducted a French nationwide retrospective study of patients with Cogan syndrome (n=40) and a literature review of cases (n=22) and analyzed the efficacy of disease-modifying anti-rheumatic drugs (DMARDs) and tumor necrosis factor alpha (TNF-alpha) antagonists. RESULTS: We included 62 patients (31 females) (median age 37years [range 2-76]. At diagnosis, 61 patients (98%) had vestibulo-auditory symptoms, particularly bilateral hearing loss in 41% and deafness in 31%. Ocular signs were present in 57 patients (92%), with interstitial keratitis in 31 (51%). The first-line treatment consisted of steroids alone (n=43; 70%) or associated with other immunosuppressive drugs (n=18; 30%). Overall, 13/43 (30%) and 4/18 (22%) patients with steroids alone and with associated immunosuppressive drugs, respectively (p=0.8), showed vestibulo-auditory response; 32/39 (82%) and 15/19 (79%) ocular response; and 23/28 (82%) and 10/14 (71%) general response. Overall 61 patients had used a total of 126 lines of treatment, consisting of steroids alone (n=51 lines), steroids with DMARDs (n=65) and infliximab (n=10). Vestibulo auditory response was significantly more frequent with infliximab than DMARDs or steroids alone (80% vs 39% and 35%, respectively), whereas ocular, systemic and acute-phase reactant response rates were similar. Infliximab was the only significant predictor of vestibulo-auditory improvement (odds ratio 20.7 [95% confidence interval 1.65; 260], p=0.019). CONCLUSION: Infliximab could lead to vestibulo-auditory response in DMARDS and steroid-refractory Cogan syndrome, but prospective studies are necessary. PMID- 29037903 TI - Novelties in the field of autoimmunity - 1st Saint Petersburg congress of autoimmunity, the bridge between east and west. PMID- 29037904 TI - Rheumatic diseases and autoimmune vascular dementia. AB - Vascular dementia (VD) comes second after Alzheimer's disease (AD) as a cause of impaired cognition. VD is not a specific nosological entity, but rather a syndrome encompassing a number of diseases caused by impaired supply of blood to the brain. Systemic autoimmune disorders such as systemic lupus erythematosus, rheumatoid arthritis, vasculitis and antiphospholipid syndrome (APS) can be associated with dementia. VD is often related to the presence of traditional cardiovascular risk factors, but it may also be associated with a host of disorders affecting the brain blood vessels, neuronal cells, or both. It is important to entertain in the differential diagnosis of VD, to recognize and to cure them accurately in order to preserve life's quality of our patients. PMID- 29037905 TI - The inter-observer reading variability in anti-nuclear antibodies indirect (ANA) immunofluorescence test: A multicenter evaluation and a review of the literature. AB - Recently there has been an increase demand for Computer-Aided Diagnosis (CAD) tools to support clinicians in the field of Indirect ImmunoFluorescence (IIF), as the novel digital imaging reading approach can help to overcome the reader subjectivity. Nevertheless, a large multicenter evaluation of the inter-observer reading variability in this field is still missing. This work fills this gap as we evaluated 556 consecutive samples, for a total of 1679 images, collected in three laboratories with IIF expertise using HEp-2 cell substrate (MBL) at 1:80 screening dilution according to conventional procedures. In each laboratory, the images were blindly classified by two experts into three intensity classes: positive, negative, and weak positive. Positive and weak positive ANA-IIF results were categorized by the predominant fluorescence pattern among six main classes. Data were pairwise analyzed and the inter-observer reading variability was measured by Cohen's kappa test, revealing a pairwise agreement little further away than substantial both for fluorescence intensity and for staining pattern recognition (k=0.602 and k=0.627, respectively). We also noticed that the inter observer reading variability decreases when it is measured with respect to a gold standard classification computed on the basis of labels assigned by the three laboratories. These data show that laboratory agreement improves using digital images and comparing each single human evaluation to potential reference data, suggesting that a solid gold standard is essential to properly make use of CAD systems in routine work lab. PMID- 29037906 TI - Uveitis: Diagnostic work-up. A literature review and recommendations from an expert committee. AB - PURPOSE: Diagnosis of uveitis is difficult. Etiologic investigations should take into account the epidemiology of uveitis and should focus on the most severe forms of the disease and those which can be treated. This study was undertaken to establish recommendations for the diagnosis of uveitis. METHODS: Recommendations were developed by a multidisciplinary panel of 14 experts, including internists, ophthalmologists, and rheumatologists, and are based on a review of the literature and the results of the ULISSE study, which was the first prospective study to assess the efficacy of a standardized strategy for the etiologic diagnosis of uveitis. The following groups of patients are not included in these recommendations: children, immunocompromised patients, patients with severe retinal vasculitis, and those with specific eye diseases diagnosed by ophthalmologic examination only. RESULTS: Diagnosis should be guided by the medical history of the patient and physical examination. Serologic screening for syphilis is appropriate in all forms of uveitis. If uveitis is not diagnosed at this stage, investigations oriented by the anatomic characteristics of uveitis are proposed. These consist of assays for HLA-B27 (in unilateral acute anterior non-granulomatous uveitis), serum angiotensin-converting enzyme, interferon-gamma release, chest computed tomography (chronic uveitis), cerebral magnetic resonance imaging and anterior chamber tap with interleukin-10 analysis (intermediate or posterior uveitis in patients >40years-old). Other investigations prescribed in the absence of orientation are usually unhelpful. CONCLUSIONS: A strategy is proposed for the etiologic diagnosis of uveitis. The benefit of more invasive investigations remains to be determined. PMID- 29037907 TI - Interleukin-22 in human inflammatory diseases and viral infections. AB - Interleukin-22 (IL22) is one of the members of IL10 family. Elevated levels of this cytokine can be seen in diseases caused by T lymphocytes, such as Psoriasis, Rheumatoid arthritis, interstitial lung diseases. IL22 is produced by different cells in both innate and acquired immunities. Different types of T cells are able to produce IL22, but the major IL22-producing T-cell is the TCD4. TH22 cell is a new line of TCD4 cells, which differentiated from naive T cells in the presence of TNFalpha and IL6; 50% of peripheral blood IL22 is produced by these cells. IL22 has important functions in host defense at mucosal surfaces as well as in tissue repair. In this review, we assess the current understanding of this cytokine and focus on the possible roles of IL-22 in autoimmune diseases. PMID- 29037908 TI - New insights in the pathogenesis of immunoglobulin A vasculitis (Henoch-Schonlein purpura). AB - Immunoglobulin A vasculitis (IgAV), also referred to as Henoch-Schonlein purpura, is the most common form of childhood vasculitis. The pathogenesis of IgAV is still largely unknown. The disease is characterized by IgA1-immune deposits, complement factors and neutrophil infiltration, which is accompanied with vascular inflammation. Incidence of IgAV is twice as high during fall and winter, suggesting an environmental trigger associated to climate. Symptoms can resolve without intervention, but some patients develop glomerulonephritis with features similar to IgA nephropathy that include hematuria, proteinuria and IgA deposition in the glomerulus. Ultimately, this can lead to end-stage renal disease. In IgA nephropathy immune complexes containing galactose-deficient (Gd-)IgA1 are found and thought to play a role in pathogenesis. Although Gd-IgA1 complexes are also present in patients with IgAV with nephritis, their role in IgAV is disputed. Alternatively, it has been proposed that in IgAV IgA1 antibodies are generated against endothelial cells. We anticipate that such IgA complexes can activate neutrophils via the IgA Fc receptor FcalphaRI (CD89), thereby inducing neutrophil migration and activation, which ultimately causes tissue damage in IgAV. In this Review, we discuss the putative role of IgA, IgA receptors, neutrophils and other factors such as infections, genetics and the complement system in the pathogenesis of IgA vasculitis. PMID- 29037909 TI - Treatment of oral refractory large area mucosal leukoplakia with CO2 laser combined with photodynamic therapy: Case report. PMID- 29037910 TI - Antimicrobial photodynamic therapy for infectious stomatitis in snakes: Clinical views and microbiological findings. AB - BACKGROUND: Antimicrobial photodynamic therapy (APDT) has been broadly investigated as an alternative to treat localized infections, without leading to the selection of resistant microorganisms. Infectious stomatitis is a multifactorial disease frequently reported in captive snakes characterized by infection of the oral mucosa and surrounding tissues. In this study, we investigated methylene blue (MB)-mediated APDT to treat infectious stomatitis in snakes and verified the resistance phenotype and genotype before and after APDT. METHODS: Three Boid snakes presented petechiae, edema and caseous material in their oral cavities. MB (0.01%) was applied on the lesions and after 5min they were irradiated using a red laser (lambda=660nm), fluence of 280J/cm2, 8J and 80s per point, 100mW, spot size 0.028cm2 and fluence rate of 3.5W/cm2. APDT was repeated once a week during 3 months. Samples of the lesions were collected to identify bacteria and antibiotic resistance profiles. To analyze the clonality of bacterial isolates before and after APDT, isolates were subjected to ERIC PCR analysis. RESULTS: Snakes presented clinical improvement such as reduction of inflammatory signs and caseous material. Pseudomonas aeruginosa and Escherichia coli were present in all snakes; Klebsiella pneumoniae and Morganella morganii were also identified in some animals. We also observed that the oral microbiota was completely replaced following APDT. However, K. pneumoniae isolates before and after APDT were a single clone with 100% of genetic similarity that lost resistance phenotype for seven antibiotics of four classes. CONCLUSIONS: These results show that APDT can be used to treat infectious stomatitis in snakes. PMID- 29037911 TI - Assessing daylight & low-dose rate photodynamic therapy efficacy, using biomarkers of photophysical, biochemical and biological damage metrics in situ. AB - BACKGROUND: Sunlight can activate photodynamic therapy (PDT), and this is a proven strategy to reduce pain caused byconventional PDT treatment, but assessment of this and other alternative low dose rate light sources, and their efficacy, has not been studied in an objective, controlled pre-clinical setting. This study used three objective assays to assess the efficacy of different PDT treatment regimens, using PpIX fluorescence as a photophysical measure, STAT3 cross-linking as a photochemical measure, and keratinocyte damage as a photobiological measure. METHODS: Nude mouse skin was used along with in vivo measures of photosensitizer fluorescence, keratinocyte nucleus damage from pathology, and STAT3 cross-linking from Western blot analysis. Light sources compared included a low fluence rate red LED panel, compact fluorescent bulbs, halogen bulbs and direct sunlight, as compared to traditional PDT delivery with conventional and fractionated high fluence rate red LED light delivery. RESULTS: Of the three biomarkers, two had strong correlation to the PpIX-weighted light dose, which is calculated as the product of the treatment light dose (J/cm2) and the normalized PpIX absorption spectra. Comparison of STAT3 cross-linking to PpIX weighted light dose had an R=0.74, and comparison of keratinocyte nuclear damage R=0.70. There was little correlation to PpIX fluorescence. These assays indicate most of the low fluence rate treatment modalities were as effective as conventional PDT, while fractionated PDT showed the most damage. CONCLUSIONS: Daylight or artificial light PDT provides an alternative schedule for delivery of drug-light treatment, and this pre-clinical assay demonstrated that in vivo assays of damage could be used to objectively predict a clinical outcome in this altered delivery process. PMID- 29037912 TI - Early emergence of altered 5-HT2A receptor-evoked behavior, neural activation and gene expression following maternal separation. AB - The early stress of Maternal Separation (MS) contributes to the establishment of adult psychopathology. The serotonergic (5-HT) system is implicated during this temporal window in mediating the development of mood-related behaviors. MS is reported to evoke altered 5-HT2A receptor function in adulthood. However, the ontogeny of altered 5-HT2A receptor responsivity following MS remains unknown. Here, we examined 5-HT2A receptor agonist, DOI (1-(2,5-dimethoxy-4-iodophenyl)-2 aminopropane) (2mg/kg) evoked responses, namely stereotypical head-twitch behaviors in control and MS Sprague-Dawley rat pups at postnatal day 21 (P21). MS involved a separation of pups from the dam for 3h daily from postnatal day 2-14. MS pups at P21 exhibited significantly enhanced head-twitch behaviors compared to controls. Using c-Fos cell counting we examined neural activation in control and MS pups following DOI treatment. MS pups exhibited altered DOI-evoked c-Fos expression within all mPFC subdivisions, but not in the hippocampus, lateral septum and hypothalamus, suggesting differential prefrontal neural activation upon 5-HT2A receptor stimulation following early stress. Gene profiling of 5-HT2A receptor-regulated immediate early genes (IEGs) indicated a decline in the expression of Fos, Fra1 and Egr1 mRNA under baseline conditions in the mPFC of MS pups. MS pups also showed an altered pattern in the regulation of several 5-HT2A receptor-regulated IEGs (Fos, Fra1, Bdnf, Egr1, Egr3) following DOI treatment. Collectively, these results highlight an early emergence of altered 5-HT2A receptor-evoked behavioral responses and neural activation patterns in multiple brain regions in animals with a history of MS. PMID- 29037913 TI - Gestational age modulates neural correlates of intentional, but not automatic number magnitude processing in children born preterm. AB - Premature birth is a significant risk factor for learning disabilities in general and mathematics learning difficulties in particular. However, the exact reasons for this relation are still unknown. While typical numerical development is associated with a frontal-to-parietal shift of brain activation with increasing age, influences of gestational age have hardly been considered so far. Therefore, we investigated the influence of gestational age on the neural correlates of number processing in 6- and 7-year-old children born prematurely (n=16). Only the numerical distance effect - as a measure of intentional number magnitude processing - elicited the fronto-parietal activation pattern typically observed for numerical cognition. On the other hand, the size congruity effect - as a measure of automatic number magnitude processing - was associated with activation of brain areas typically attributed to cognitive control. Most importantly, however, we observed that gestational age reliably predicted the frontal-to parietal shift of activation observed for the numerical distance effect. Our findings seem to indicate that human numerical development may start even before birth and prematurity might hamper neural facilitation of the brain circuitry subserving numerical cognition. In turn, this might contribute to the high risk of premature children to develop mathematical learning difficulties. PMID- 29037914 TI - Antimicrobial activity and preliminary mode of action of PlnEF expressed in Escherichia coli against Staphylococci. AB - Strains belonging to the genus of Staphylococci, such as Staphylococcus aureus are common pathologic bacteria which may cause nosocomial cross infection and food contamination. Plantaricin EF (PlnEF), a two-peptide nonlantibiotic bacteriocin produced by Lactobacillus plantarum strains, shows great inhibitory effects against Gram-positive Staphylococci strains. To overproduce this two peptide bacteriocin, plnE and plnF genes were cloned into pET32a (+) vector and heterologously expressed in Escherichia coli by fusion with His6-tag in this study. The purified fusion proteins were cleaved by enterokinase, then PlnE and PlnF peptides without extra amino acids were obtained by a two-step purification method, ultrafiltration centrifuge (10 kDa) followed by a reverse-phase HPLC. Purity of PlnE and PlnF, determined by analytical HPLC, is ~98%, and their molecular mass confirmed by ESI-MS was 3545.14 Da and 3703.1 Da, respectively. It was found that the two peptides had significant antimicrobial activities against Staphylococcus citreus and Staphylococcus aureus strains and they functioned synergistically. PlnEF exerted its bactericidal activity against Staphylococci strains by permeabilizing the cell membrane, causing influx and efflux of various molecules across the transmembrane barrier, eventually leading to cell death. PMID- 29037915 TI - Linalool-rich essential oils from the Amazon display antidepressant-type effect in rodents. AB - ETHNOPHARMACOLOGICAL RELEVANCE: The essential oils of the leaves of Aniba rosaeodora (pau-rosa), Aniba parviflora (macacaporanga) and Aeollanthus suaveolens (catinga-de-mulata), rich in linalool, are used in the traditional medicine of the Brazilian Amazon for its effects on the central nervous system, such as sedative, anticonvulsant and antidepressant, among other therapeutic properties. AIM OF THE STUDY: To analyze the chemical composition of these oils and to evaluate their neurobehavioral effects in rodents, based on different and established behavioral tests. MATERIAL AND METHODS: The oils were distilled and analyzed by GC and GC-MS. Male Wistar rats received intraperitoneal doses of the oils of pau-rosa (3.5 and 35mg/kg), macacaporanga (8.5 and 85mg/kg) and catinga de-mulata (7.5 and 75mg/kg), in addition to a linalool standard (30mg/kg). The neurobehavioral effects were evaluated using the tests: Open Field (spontaneous locomotion activity), Elevated Plus Maze (anxiolytic- type activity), Splash and Forced Swimming (antidepressive-type activity) and the Inhibitory Avoidance (memory retention). RESULTS: The three oils (highest dose) and standard linalool presented significant antidepressant activity in rodents. Linalool was identified as the major constituent of the oils (pau-rosa, 88.6%, macacaporanga, 45%, catinga-de-mulata, 49.3%). The standard linalool used was 97.0%. CONCLUSION: The pau-rosa, macacaporanga, and catinga-de-mulata oils presented antidepressant activity due to the presence of linalool, which, by the final synergistic action of other constituents found in oils, may have contributed to the increase or reduction of this behavioral effect in the treated animals. A relevant fact is that there was no compromise of spontaneous locomotion and the memory retention in the rodents. PMID- 29037916 TI - Pfaffia paniculata (Brazilian ginseng) extract modulates Mapk and mucin pathways in intestinal inflammation. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Pfaffia paniculata is an endemic Brazilian plant traditionally used against fatigue, stress, inflammation and low immune system as well as with proven intestinal anti-inflammatory activity. AIM OF THE STUDY: To evaluate intestinal anti-inflammatory effects of P. paniculata on the mRNA abundance of Hsp70, Heparanase, Mapk1, Mapk3, Mapk6, Mapk9, Muc1, Muc2, Muc3, Muc4, and NF-kappaB, as well as the mucin content in colonic samples. MATERIAL AND METHODS: Intestinal inflammation was induced by TNBS and rats were divided into groups that received vehicle or 25, 50, 100, or 200mg/kg of P. paniculata extract, p.o., started 2h after inflammation induction and continued daily for 7 days. At the end of the procedure, the animals were killed and their colon samples were obtained for RT-qPCR analysis and mucin histochemical study with PAS/Alcian blue stain. The inflammatory process was confirmed with colon macroscopic analysis and myeloperoxidase (MPO) activity. RESULTS: P. paniculata at 200mg/kg significantly decreased macroscopic damage score, extension of lesion and colonic MPO activity. Besides, P. paniculata at a dose of 25mg/kg was also able to significantly decrease Hsp70, while treatment with 50mg/kg reduced Mapk3 and increased Muc4. At dose of 100mg/kg P. paniculata increased Mapk1, Muc3, Muc4, and decreased Mapk3. Finally, at the 200mg/kg P. paniculata reduced Mapk3. The heparanase, NF-kappaB, Mapk6, Mapk9, Muc1 and Muc2 mRNA abundances were not altered after P. paniculata treatments. CONCLUSION: Intestinal anti-inflammatory activity of P. paniculata was related to modulation of Mapks and mucin gene expression, as well as mucus secretion in intestinal inflammation. PMID- 29037917 TI - Immunomodulation after radiofrequency ablation of locally advanced pancreatic cancer by monitoring the immune response in 10 patients. AB - OBJECTIVE/BACKGROUND: RFA of pancreatic cancer has been demonstrated to be feasible and safe with a positive impact on survival. The aim was to investigate whether an immune reaction is activated after locally advanced pancreatic cancer (LAPC) ablation. METHODS: Peripheral Blood samples were obtained preoperatively and on post-operative days 3-30. Evaluated parameters were: cells [CD4+, CD8+ and activated subsets, T-Reg, Monocytes, myeloid and plasmocytoid Dendritic cells (mDC and pDC)] and cytokines [Interleukin (IL)-6, Stromal-cells derived factor (SDF)-1, IL-1beta, Tumour-Necrosis Factor (TNF)-alpha, Interferon (IFN)-gamma, Vascular Endothelial Growth Factor (VEGF), chemokine (C-C motif) ligand 5 (CCL 5), Transforming-Growth Factor (TGF)-beta]. RESULTS: Ten patients were enrolled. CD4+, CD8+ and TEM increased from day 3 suggesting the activation of the adaptive response. Immunosuppressive T-Reg cells were stable despite the possibility that laparotomy and heating might favour their expansion. Myeloid DCs, that present tumour-associated antigens, increased at day 30. RFA dramatically increased circulating IL-6 at day 3 but this decreased to baseline by day 30, consistent with the supposed anti-tumour effect. RFA did not significantly modulate essential chemokines, such as CCL-5 and SDF1, VEGF, TGF-beta and TNF-alpha, that favour tumour-growth by sustaining cancer angiogenesis and fuelling tumour associated inflammation. CONCLUSIONS: This study provides the first evidence of RFA-based immunomodulation in LAPC. We observed a general activation of adaptive response along with a decrease of immunosuppression. Furthermore, most cells showed prolonged activation some weeks after the procedure, suggesting true immunomodulation rather than a normal inflammatory response. PMID- 29037918 TI - Monitoring of incremental changes in maximum interincisal opening after gap arthroplasty omits the risk of Re-ankylosis. AB - PURPOSE: The aim of this clinical study was to prospectively measure the incremental changes in the maximum interincisal opening (MIO) after 1 cm gap arthroplasty, compare these changes between unilateral and bilateral cases, and emphasize the importance of the monitoring of the MIO for at least 24 months. MATERIALS AND METHODS: This prospective study enrolled 26 patients with TMJ ankylosis either unilateral or bilateral. The fingers assessment method was used to measure the MIO preoperatively, intraoperatively, and monthly postoperatively up to 24 months. All the patients had undergone 1 cm gap arthroplasty to release the ankylosis. The changes in MIO measurements of unilateral and bilateral cases were statistically compared. The physiotherapy was performed until the measurements had normal stable values. RESULTS: All the cases showed a significant decrease in MIO at the first three months. At 6 months, the MIO continuously increased up to 1 year. There was no difference between the unilateral and bilateral cases. At the end of the follow-up, all measurements showed normal stable values. CONCLUSION: The monitoring of MIO is important to detect the early signs of re-ankylosis. It is the only way that can be used in which the early signs cannot be detected in radiographs. PMID- 29037919 TI - Biomechanical comparison of a multidirectional locking plate and conventional plates for the osteosynthesis of mandibular angle fractures-A preliminary study. AB - PURPOSE: The objective of surgical fracture management is to reduce and fixate fractures accurately and rapidly. Two osteosynthesis plates are usually used in the treatment of mandibular angle fractures to enhance torsional stiffness. We conducted biomechanical tests under static and cyclic loading to assess whether a single locking plate is as efficacious as two conventional plates in the osteosynthesis of mandibular angle fractures. MATERIALS AND METHODS: Fracture gaps were created in synthetic mandible replicas. After pretests, the stiffness of a single locking plate and different types of non-locking, two-plate systems was assessed and compared under static and cyclic loading. The plates were subjected to a maximum static load of 750 N and underwent cyclic loading at a constant force of 400 N during a maximum of 500,000 cycles. RESULTS: No plastic deformation occurred in the static tests. Both types of osteosynthesis showed high static stability. The locking plate was significantly stiffer than the non locking plates (p = 0.0079). Cyclic loading tests did not reveal any significant differences. CONCLUSION: Within the limitations of this preliminary study, a single locking miniplate appears to be as efficacious in biomechanical tests as non-locking, two-plate systems for the management of mandibular angle fractures. PMID- 29037920 TI - Tongue movement during articulation in magnetic resonance imaging: Findings in 20 healthy volunteers and a patient with anterior floor of the mouth squamous cell carcinoma. AB - PURPOSE: Combined ablative and reconstructive oral maxillofacial surgery involves a multitude of anatomical and functional structures for speech and swallowing. Although there are a few methods to objectively examine swallowing function, this is not true for speech. We describe the development of an objective visualization and measurement tool for magnetic resonance imaging (MRI) to evaluate speech and its first application in a patient. MATERIAL AND METHODS: A total of 20 healthy patients and one patient with squamous cell carcinoma localized in the anterior floor of the mouth were included in the study. Examination included an MRI examination of a paced, defined set of fictive words representing all sounds of the German language. The patient underwent MRI preoperatively and 1, 3, 6 and 12 months postoperatively. MRI findings were correlated with speech intelligibility. RESULTS: In sagittal planes, the correct identification of vowels and consonants was feasible and showed a high accordance between two independent observers and repetitions. Measurements for the patient showed significant deviations 1 month postoperatively but gradually decreased over time. Aberrant values were persistent for sound /s/. Findings correlated with clinical findings of speech intelligibility. CONCLUSION: The presented tool seems to be promising for evaluating articulation in (tumor) patients. PMID- 29037921 TI - TLR expression profile of human alveolar bone proper-derived stem/progenitor cells and osteoblasts. AB - Alveolar bone proper-derived mesenchymal stem/progenitor cells (AB-MSCs) and alveolar osteoblasts (OBs) are pivotal cells with positive attributes in regenerative medicine. During regenerative approaches, AB-MSCs may interact with their surrounding environment via their expressed toll-like-receptors (TLRs). This study aimed to depict for the first time the TLRs expression profile of AB MSCs and OBs. Cells were isolated from human alveolar bone proper, and STRO-1 immunomagnetically sorted to segregate AB-MSCs and OBs. Cell populations were separately seeded out to obtain single colony forming units (CFUs), and were characterized for CD14, CD34, CD45, CD73, CD90, CD105, and CD146 expression as well as for their multilineage differentiation potential. Following incubation of AB-MSCs and OBs in basic medium, their TLRs expression profiles were characterized at mRNA and protein levels. In contrast to OBs, AB-MSCs showed all predefined mesenchymal stem/progenitor cell characteristics. At a protein level, AB-MSCs showed a distinctive expression profile of TLRs 1, 2, 3, 4, 5, 6, 7, 8, and 10 in different quantities, without TLR9 expression. According to their median expression values, TLR2 was the highest expressed, followed by TLRs 4, 5, 7, 1, 10, 8, 3, and finally 6. In contrast, OBs did not express TLR3 and TLR9. According to their median expression values they further showed a different sequence of TLRs expression, with TLR2 highest expressed, followed by TLRs 10, 4, 7, 5, 1, 8, and 6. This study describes for the first time the characteristic TLRs expression profile of AB-MSCs as well as OBs, which could impact their specific sensitivity to pathogenic as well as body tissue compounds, and their therapeutic potential in-vivo. PMID- 29037922 TI - Oral vitamin B1-substitution does not decrease genetically determined cleft rate in mice (A/WySn). AB - PURPOSE: Cleft lip and palate (CL/P) are one of the most common human birth defects. Animal experiments and clinical investigations show a clear reduction of teratogenic clefts by a high-dose vitamin B supplementation during early pregnancy, especially in families at risk (reduction of recurrence). The aim of this work was to examine the influence of thiamine (vitamin B1) on CL/P appearance in genetically determined A/WySn mice within different supplementation starting points. MATERIALS AND METHODS: A total of 24 A/WySn female mice were orally supplemented with high doses (80 mg/kg) of thiamine at different times of pregnancy (5 groups, n = 90). The influence of thiamine on the abortion rate and CL/P appearance in the offspring was analyzed with respect to the concentration of thiamine in the serum and amniotic fluid (HPLC-chromatography). Immunochemical analyses of the ThTr-1 und ThTr-2 receptor-status were performed in midface sections of A/WySn-fetuses and the corresponding placenta, with and without CL/P. RESULTS: High doses of orally supplemented thiamine did not reduce the CL/P appearance in A/WySn mice. However, the different starting points of vitamin B1 substitution had some influence. Additionally, an obvious decrease in aborted fetuses was noticed in all supplemented groups. The oral substitution caused a clear increase of the serum concentration in all mothers, but showed no increase of the amniotic fluid concentration. Then immunohistochemistry detected an overexpression of ThTr-1 in the midface and an irregular localization of ThTr-2 in the placenta of fetuses with clefts. CONCLUSION: Our results suggest a time dependent influence of thiamine on CL/P appearance in female mice. The prophylactic/periconceptional, but not the therapeutic supplementation, starting point can be proposed as a crucial step for regular facial and palatal fusion in embryonic development. The absolute rate of CL/P was not reduced, and the concentration of the water-soluble thiamine could not increase in the amniotic fluid. Thus the proposed local effect of thiamine failed in the development of genetically determined mice. PMID- 29037923 TI - WITHDRAWN: Toxicity of triptolide and the molecular mechanisms involved. 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- 29037924 TI - "All-Inside" Arthroscopic Treatment of Tillaux-Chaput Fractures: Clinical Experience and Outcomes Analysis. AB - We investigated all-inside ankle arthroscopy for Tillaux-Chaput fractures. We retrospectively evaluated 19 patients (12 males [63.2%] and 7 [36.8%] females; 11 right [57.9%] and 8 left [42.1%] ankles) treated from May 2013 to January 2016. Their mean age was 28.1 (range 10 to 55) years. Sixteen (84.2%) had single Tillaux-Chaput fractures and 3 (15.8%) had combined proximal fibular fractures; 17 (89.5%) were diagnosed radiographically and 2 (10.5%) by computed tomography. Anterolateral and anteromedial ankle arthroscopy was used for closed reduction and internal fixation with 1 or 2 Herbert screws. Joint function was evaluated using the American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot scale. All 19 patients healed by first intention without nerve, vessel, or tendon injuries. The follow-up was 19.0 (range 12 to 25) months; fracture union was achieved by 23.5 (range 12 to 36) weeks. At the last follow-up, the 19 patients had no restrictions in ankle function and range of motion, with no ankle or walking pain. The AOFAS score changed from 52.8 to 91.7 points, with an excellent/good rate of 100%. These results suggest that anterolateral and anteromedial all-inside ankle arthroscopy is a precise and effective method for closed reduction and internal fixation of Tillaux-Chaput fractures. PMID- 29037925 TI - Radiographic Union Scoring Scale for Determining Consolidation Rates in the Calcaneus. AB - The reliable evaluation of osseous consolidation after hindfoot osteotomy can be difficult. Concomitant hindfoot osteotomies often dictate the advancement of weightbearing, and radiographs are the mainstay imaging tool owing to cost, efficiency, and radiation exposure. Understanding the radiographic parameters that can be used to reliably determine osseous healing is paramount. However, currently, no reliable or validated method is available to determine osseous healing of hindfoot osteotomies in irregular bones of the foot. The purpose of the present study was to develop a radiographic healing scoring system that would enhance the diagnostic healing assessment after elective calcaneal osteotomy. We adapted existing orthopedic scales validated for healing in the leg for application in the irregular bones of the foot. A total of 168 cases were evaluated by 6 blinded assessors to test the interrater reliability of subjective healing assessment compared with the proposed scoring system. The radiographs were classified by postoperative period: <=4 weeks, 5 to 12 weeks, and >12 weeks. The proposed scale had high interrater reliability but was burdensome. Using a priori item reduction protocols, a limited 6-item scale further improved internal consistency and reduced the burden. The result was excellent interrater reliability (alpha = 0.98, standard deviation 0.02, 95% confidence interval 0.91 to 0.96) among all assessors when using the scoring scale compared with unacceptable reliability (alpha = 0.438) for subjective osteotomy healing. The reliability of our system appeared superior to that of subjective assessment of osseous healing alone, even in the absence of clinical correlates after osteotomy of the calcaneus. PMID- 29037926 TI - Comparison of Clamp Reduction and Manual Reduction of Syndesmosis in Rotational Ankle Fractures: A Prospective Randomized Trial. AB - An optimal outcome of surgical treatment for a syndesmotic injury depends on accurate reduction and adequate fixation. It has been suggested that the use of a reduction clamp for reduction of the syndesmosis results in better reduction and a lower rate of redisplacement than manual reduction. However, these concepts have never been scientifically evaluated. We compared these 2 methods in a prospective randomized trial. A total of 85 acute ankle rotational fractures combined with syndesmotic injury were randomized to syndesmosis reduction with either a reduction clamp or manual manipulation. Reduction of the syndesmosis was assessed radiographically by measuring the tibiofibular clear space, tibiofibular overlap, and the medial clear space immediately postoperatively and at the final follow-up examination. Ankle joint range of motion, visual analog scale score, Olerud-Molander ankle scoring system, and complications were obtained at the last follow-up visit to assess the clinical outcomes. Of the 3 radiographic measurements, the tibiofibular clear space and tibiofibular overlap differed significantly between the 2 groups (p < .05). The clinical outcomes did not differ significantly between the 2 groups (p > .05). Although differences were found in the radiographic measurements, most syndesmoses in both groups were within the normal range at the final follow-up visit, and the 2 methods of syndesmosis reduction provided similar clinical outcomes. Accordingly, the results of the present study suggest that both of these methods are effective and reliable for reduction of the syndesmosis in rotational ankle fractures. PMID- 29037927 TI - Short-Term Outcomes of Open Reduction and Internal Fixation for Sanders Type III Calcaneal Fractures With and Without Bone Grafts. AB - Calcaneal fractures, often caused by a fall from a height, are the most common injuries encountered by orthopedic surgeons. Currently, open anatomic reduction and internal fixation (ORIF) is considered a valuable treatment of displaced intraarticular fractures of the calcaneus; however, the need for bone grafting in the treatment is still controversial. Therefore, in the present study, we investigated the outcomes of 2 methods (with and without bone grafting) used for the surgical treatment of Sanders type III calcaneal fractures. From January 2013 to September 2015, 57 cases (55 patients) with displaced Sanders type III calcaneal fractures (53 unilateral and 2 bilateral) were enrolled. The patients were divided into 2 groups: group I was treated by ORIF with bone grafting (n = 28) and group II was treated by ORIF without bone grafting (n = 29). The radiologic evaluation included Bohler's angle, Gissane's angle, and the height and width of the calcaneum. In addition, the American Orthopaedic Foot and Ankle Society questionnaires and visual analog scale were completed by the patients. During the follow-up period, no differences were found in the outcome measures (Bohler's angle, p = .447; Gissane's angle, p = .599; calcaneal height, p = .065; calcaneal width p = .077; and American Orthopaedic Foot and Ankle Society questionnaires, p = .282) with or without bone grafting. The only difference between the 2 groups was the occurrence of postoperative pain (p = .024 and p = <= .05), which was greater in the patients who had undergone bone grafting. We have provided evidence that bone grafting with internal fixation in the treatment of intraarticular calcaneal fractures failed to improve the restoration of Bohler's angle or Gissane's angle. No statistically significant difference was found in the short-term outcomes between the 2 methods used for the surgical treatment of Sanders type III calcaneal fractures. PMID- 29037928 TI - Melanoma of the Foot Is Associated With Advanced Disease and Poorer Survival. AB - The purpose of the present study was to review the outcomes and assess the prognostic factors associated with foot melanoma. We hypothesized that primary melanoma of the foot would be more likely to present at an advanced stage and be associated with poorer outcomes. Both univariate and multivariate analyses were conducted to examine the relationships between patients' demographic, clinical, and pathologic characteristics and deaths within 5 years. Categorical data were summarized as frequencies and percentages and continuous variables as mean +/- standard deviation. The primary outcome measure was overall survival. On univariate analysis, the significant prognostic variables found included Breslow thickness, ulceration, sentinel node positivity, and localized presentation on the toe. Age, sex, and race were not prognostically significant in this model. Multivariate Cox proportional hazards analysis resulted in a model of foot melanoma with ulceration and location on the toe as independent prognostic variables. The 5-year survival rate for melanoma of the toe was 50%. The results of the present study have shown that physicians should have a low threshold to biopsy suspicious lesions of the foot and ankle. Advanced disease and poorer survival were noted with toe melanoma. An ulcerative lesion of the foot was also associated with poorer survival. PMID- 29037929 TI - Severe Sepsis and Acute Myocardial Dysfunction in an Adolescent with Chlamydia Trachomatis Pelvic Inflammatory Disease: A Case Report. AB - BACKGROUND: Although generally asymptomatic, severe Chlamydia trachomatis (C. trachomatis) infections have been documented. C. trachomatis has been associated with myocarditis as well as sepsis. CASE: A 19-year-old girl with type 1 diabetes mellitus developed sudden-onset mental status change and shock after resolution of diabetic ketoacidosis. Abdominal and pelvic imaging showed uterine and adnexal inflammation, and pelvic examination confirmed a diagnosis of pelvic inflammatory disease. The patient was intubated, required vasopressor support, and developed severe biventricular myocardial dysfunction. Infectious myocarditis workup was negative. Nucleic acid amplification testing from vaginal discharge was positive for C. trachomatis and Trichomonas vaginalis and negative for Neisseria gonorrhoeae. SUMMARY AND CONCLUSION: C. trachomatis should be considered in the workup of septic shock, particularly in populations at high risk for sexually transmitted infections. PMID- 29037930 TI - Adolescent-Parent Dyad Descriptions of the Decision to Start the HPV Vaccine Series. AB - STUDY OBJECTIVE: To examine how adolescent-parent dyads describe decision-making regarding initiation of the human papillomavirus (HPV) vaccine series, specifically who they viewed as making the final decision. DESIGN: Semistructured interviews with adolescent-parent dyads were audio-recorded and transcribed. Responses to the question: "How did you make a decision about whether or not to receive the HPV vaccine series?" were content-coded for each individual member of the dyad. SETTING: Adolescent medicine clinics of 2 large urban medical centers and through snowball sampling. PARTICIPANTS: Adolescents 14-17 years of age and a parent (N = 262). Qualitative analyses were conducted for those who agreed that they were offered and started the HPV vaccine series (n = 109). INTERVENTIONS: None. MAIN OUTCOME MEASURES: Descriptions of the decision-making included 1 person (adolescent or parent) making the decision or joint decision-making by the adolescent and parent together. RESULTS: More than half of the dyads did not agree on who made the decision to start the vaccine. Most adolescents and parents described a similar account about when they were offered the HPV vaccine, although the interpretation of the event in terms of the decision-maker might have differed. More than half of adolescents and parents individually mentioned the health care provider in their description of the HPV vaccine decision-making process even though they were not queried about the role of the provider. CONCLUSION: Understanding the range of descriptions of these dyads is helpful to guide interventions to promote vaccine uptake in a manner that balances provider expertise, adolescent autonomy, and parental involvement. PMID- 29037931 TI - Distinct populations of embryonic epithelial progenitors generate Lgr5+ intestinal stem cells. AB - The adult intestinal stem cells (ISCs) are transcriptionally heterogeneous. As the mechanisms governing their developmental specification are still poorly understood, whether this heterogeneity reflects an early determination of distinct cellular sub-types with potentially distinct physiological functions remains an open question. We investigate the cellular heterogeneity within the mouse embryonic midgut epithelium at the molecular and functional levels. Cell fate mapping analysis revealed that multiple early embryonic epithelial progenitors give rise to Lgr5+ ISCs. The origin of the molecularly distinct early precursors along the anterior-posterior axis defines the transcriptional signature of embryonic Lgr5+ ISC progenitors. We further show that the early epithelial progenitors have different capacity to generate Lgr5+ ISC progenitors and Axin2+ early precursors display the highest potential. PMID- 29037934 TI - The primary diagnosis and the coexisting anxiety disorders have no impact on the additional surgical procedure after spinal cord stimulators implantation: An analysis of 11,029 patients. AB - Studies have demonstrated superior outcomes and cost effectiveness of the spinal cord stimulation (SCS) for the treatment of chronic pain syndromes such as failed back surgery syndrome (FBSS) or complex regional pain syndrome (CRPS). However, little is known about the impact of primary diagnosis or mental disorders on the revision rate. This is the Retrospective cohort study to analyze the reintervention rates based on the primary diagnosis or comorbid mental disorder. Data of the annual trends of SCS use, revision and removal rate of SCS and additional surgical rate after removal was collected and analyzed for patients undergoing SCS between 2007 and 2015, within a private insurance billing database. Trial cases were excluded from this study. The results showed 11,029 patients received SCS implantation with percutaneous electrodes (PE, n = 7418) or surgical electrode (SE, n = 3611). There was a trend of increasing use of SCS from 2007 to 2013, followed by a decrease in last two years. There was no significant difference in the neither removal nor revision rate regardless between the patients with FBSS or CRPS at each time point. Although the removal rates within 2 years were significantly higher in the patients with anxiety disorders compared to the patients without any mental disorders (PE: p < .001, SE: 0.003), the rate of additional surgery after the removal showed no significant difference (PE: p = .532, SE: p = .262). Therefore, we concluded that the primary diagnosis and the presence of anxiety disorders did not have an impact on the additional surgical rate following SCS implantation. PMID- 29037932 TI - Retinoic acid deficiency leads to an increase in spermatogonial stem number in the neonatal mouse testis, but excess retinoic acid results in no change. AB - The onset of spermatogenesis occurs in response to retinoic acid (RA), the active metabolite of vitamin A. However, whether RA plays any role during establishment of the spermatogonial stem cell (SSC) pool is unknown. Because designation of the SSC population and the onset of RA signaling in the testis that induces differentiation have similar timing, this study asked whether RA influenced SSC establishment. Whole mount immunofluorescence and flow cytometric analysis using the Id4-eGfp transgenic reporter mouse line revealed an enrichment for ID4-EGFP+ cells within the testis following inhibition of RA synthesis by WIN 18,446 treatment. Transplantation analyses confirmed a significant increase in the number of SSCs in testes from RA-deficient animals. Conversely, no difference in the ID4-EGFP+ population or change in SSC number were detected following exposure to an excess of RA. Collectively, reduced RA altered the number of SSCs present in the neonatal testis but precocious RA exposure in the neonatal testis did not, suggesting that RA deficiency causes a greater proportion of progenitor undifferentiated spermatogonia to retain their SSC state past the age when the pool is thought to be determined. PMID- 29037933 TI - Role of maternal Xenopus syntabulin in germ plasm aggregation and primordial germ cell specification. AB - The localization and organization of mitochondria- and ribonucleoprotein granule rich germ plasm is essential for many aspects of germ cell development. In Xenopus, germ plasm is maternally inherited and is required for the specification of primordial germ cells (PGCs). Germ plasm is aggregated into larger patches during egg activation and cleavage and is ultimately translocated perinuclearly during gastrulation. Although microtubule dynamics and a kinesin (Kif4a) have been implicated in Xenopus germ plasm localization, little is known about how germ plasm distribution is regulated. Here, we identify a role for maternal Xenopus Syntabulin in the aggregation of germ plasm following fertilization. We show that depletion of sybu mRNA using antisense oligonucleotides injected into oocytes results in defects in the aggregation and perinuclear transport of germ plasm and subsequently in reduced PGC numbers. Using live imaging analysis, we also characterize a novel role for Sybu in the collection of germ plasm in vegetal cleavage furrows by surface contraction waves. Additionally, we show that a localized kinesin-like protein, Kif3b, is also required for germ plasm aggregation and that Sybu functionally interacts with Kif3b and Kif4a in germ plasm aggregation. Overall, these data suggest multiple coordinate roles for kinesins and adaptor proteins in controlling the localization and distribution of a cytoplasmic determinant in early development. PMID- 29037935 TI - The pathogenesis of delayed epidural hematoma after posterior fossa surgery. AB - The purpose of this study was to analyze the pathogenesis of delayed epidural hematoma (EDH) after posterior fossa surgery. Non-traumatic, non-arterial origin delayed EDH after posterior fossa surgery is extremely rare. Moreover, the pathogenesis of its supratentorial extension is obscure. Between April 1997 and June 2016, over 3300 patients underwent microvascular decompression (MVD) for neurovascular compression syndrome. The medical chart of four patients with delayed EDH were retrospectively reviewed. The median time from MVD to re-CT scan was 58 h (range, 33-100). All patients underwent hematoma evacuations. Intraoperative findings during hematoma evacuation revealed only an oozing hemorrhage from the transverse sinus with no definitive bleeding focus. The patients spent a median of 21.5 days (range, 11-39) at the hospital. At the last follow-up, all patients had fully recovered without significant neurological deficits and exhibited complete relief or minimal symptoms from hemifacial spasm (HFS). Postoperative uncontrolled bleeding from the dural venous sinus can sometimes cause an insidious-onset or delayed posterior fossa EDH. PMID- 29037936 TI - Super-refractory nonconvulsive status epilepticus due to self-poisoning with metaldehyde. AB - INTRODUCTION: Metaldehyde self-poisoning in adults is uncommon and, to the best of our knowledge, an episode of super-refractory nonconvulsive status epilepticus (sr-NCSE) following an suicide attempt has not been previously demonstrated. CASE REPORT: A 68-year-old woman was admitted to our Intensive Care Unit (ICU) in coma. On neurologic examination, the pupils were reactive, brainstem reflexes were present and plantar responses were flexor bilaterally. Routine laboratory tests were unremarkable. Arterial blood gas analysis revealed a mixed acidosis. A computed tomography (CT) scan of the brain and angio-CT were normal. The family confirmed that the patient had had suicidal ideation, and they had discovered a bag of slug killer (metaldehyde 5%) in her room. Two hours after the admission at the ICU, her neurological state remained unchanged. Sedation with intravenous propofol and antiepileptic therapy with levetiracetam (1000 mg/24 h) were started. The next day, propofol infusion was stopped but the level of consciousness of the patient did not improve. A video-electroencephalograhy (v EEG) showed continuous generalized paroxysms of spike-wave and sharp-slow wave complexes compatible with the diagnosis of generalized NCSE. On day 3, the episode of NCSE was controlled. Finally, 15 days after ICU admission she was discharged with a normal neurological examination. CONCLUSION: This clinical case highlights that in comatose patients as consequence of metaldehyde poisoning, a v EEG evaluation should be perform in order to rule out the existence of NCSE. PMID- 29037937 TI - Treatment advances in Parkinson disease: Same script different cast? PMID- 29037938 TI - Non-Clostridium difficile Bacterial Infections Are Rare in Patients With Flares of Inflammatory Bowel Disease. AB - BACKGROUND & AIMS: Clostridium difficile infection (CDI) causes flares in patients with inflammatory bowel disease (IBD). We investigated the frequency and outcomes of non-CDI bacterial enteric infections in symptomatic patients with IBD. METHODS: We performed a retrospective study of patients with ulcerative colitis (UC) or Crohn's disease (CD) from whom stool samples were collected and analyzed by PCR or culture for bacterial pathogens (Campylobacter jejuni or C coli, Salmonella species, Shigella species, enteroinvasive Escherichia coli, shiga toxin-producing E coli, or Yersinia species) from November 19, 2011, through June 30, 2014. Patients were excluded if they had nonbacterial infections or no symptoms. Data were collected from medical records on IBD duration, treatment, age at diagnosis, and presence of concurrent CDI. Patients were followed for 1 year after the date of infection resolution or until date of last follow-up in the health record. Each patient with an enteric infection was matched with 2 patients with IBD flares and negative results from stool tests (non-infected control) and 2 patients with IBD and CDI (CDI control), adjusted for age (within 5 years at the time of stool test), sex, and IBD subtype. Outcome measures included IBD therapy escalation and hospitalization. RESULTS: Of 9247 patients with IBD seen during the study period, stool samples were tested from 1345 patients (50% with UC and 50% with CD). There were 3 positive results (detection of bacterial pathogens) from 339 PCR analyses of stool samples from 296 patients with UC (0.88%) and 12 positive results from 486 cultures of stool samples from 418 patients with UC (2.5%). There was 1 positive result from 355 PCR analyses of stool samples from 311 patients with CD (0.28%) and 9 positive results from 496 cultures of stool samples from 413 patients with CD (1.8%). Of the 19 patients followed beyond infection, 9 patients required escalation of their IBD therapy (47%)-most commonly addition of an immunomodulator (5 patients) or a biological agent (3 patients)-compared with 34% of CDI controls and 66% of non-infected controls (P < .001). Higher proportions of patients with non-CDI bacterial infections were in remission 1 year after their infection (89%) than patients with CDI (55%) or negative results of stool tests (63%; P = .04). We did not observe differences in hospitalization, emergency department visits, or surgical interventions among groups. CONCLUSIONS: In a retrospective study of patients with an IBD flare, we detected non-CDI bacterial infections in fewer than 3% of those who were tested. Higher proportions of patients with non-CDI bacterial infections were in remission in the year after their infection than patients with CDI. PMID- 29037939 TI - Relationship of Hospital Teaching Status with In-Hospital Outcomes for ST-Segment Elevation Myocardial Infarction. AB - BACKGROUND: Prior analyses have largely shown a survival advantage with admission to a teaching hospital for acute myocardial infarction. However, most prior studies report data on patients hospitalized over a decade ago. It is important to re-examine the association of hospital teaching status with outcomes of acute myocardial infarction in the current era. METHODS: We queried the 2010 to 2014 National Inpatient Sample databases to identify all patients aged >=18 years hospitalized with the principal diagnosis of ST-segment elevation myocardial infarction (STEMI). Multivariable logistic regression models were constructed to compare rates of reperfusion and in-hospital outcomes between patients admitted to teaching vs nonteaching hospitals. RESULTS: Of 546,252 patients with STEMI, 273,990 (50.1%) were admitted to teaching hospitals. Compared with patients admitted to nonteaching hospitals, those at teaching hospitals were more likely to receive reperfusion therapy during the hospitalization (86.7% vs 81.5%; adjusted odds ratio [OR] 1.41; 95% confidence interval [CI], 1.39-1.44; P < .001) and had lower risk-adjusted in-hospital mortality (4.9% vs 6.9%; adjusted OR 0.84; 95% CI, 0.82-0.86; P < .001). After further adjustment for differences in use of in-hospital reperfusion therapy, the association of teaching hospital status with lower risk-adjusted in-hospital mortality was significantly attenuated but remained statistically significant (adjusted OR 0.97; 95% CI, 0.94 0.99; P = .02). CONCLUSIONS: Patients admitted to teaching hospitals are more likely to receive reperfusion and have lower risk-adjusted in-hospital mortality after STEMI compared with those admitted to nonteaching hospitals. Our results suggest that hospital performance for STEMI continues to be better at teaching hospitals in the contemporary era. PMID- 29037940 TI - Hyperbaric oxygen treatment effects on in vitro cultured umbilical cord blood CD34+ cells. AB - BACKGROUND AIMS: Umbilical cord blood (UCB) provides an alternative source for hematopoietic stem/progenitor cells (HSPCs) in the treatment of hematological malignancies. However, clinical usage is limited due to the low quantity of HSPCs in each unit of cord blood and defects in bone marrow homing. Hyperbaric oxygen (HBO) is among the more recently explored methods used to improve UCB homing and engraftment. HBO works by lowering the host erythropoietin before UCB infusion to facilitate UCB HSPC homing, because such UCB cells are not directly exposed to HBO. In this study, we examined how direct treatment of UCB-CD34+ cells with HBO influences their differentiation, proliferation and in vitro transmigration. METHODS: Using a locally designed HBO chamber, freshly enriched UCB-CD34+ cells were exposed to 100% oxygen at 2.5 atmospheres absolute pressure for 2 h before evaluation of proliferative capacity, migration toward a stromal cell-derived factor 1 gradient and lineage differentiation. RESULTS: Our results showed that HBO treatment diminishes proliferation and in vitro transmigration of UCB-CD34+ cells. Treatment was also shown to limit the ultimate differentiation of these cells toward an erythrocyte lineage. As a potential mechanism for these findings, we also investigated HBO effects on the relative concentration of cytoplasmic and nucleic reactive oxygen species (ROS) and on erythropoietin receptor (Epo-R) and CXCR4 expression. HBO-treated cells showed a relative increase in nucleic ROS but no detectable differences in the level of Epo-R nor CXCR4 expression were established compared with non-treated cells. DISCUSSION: In summary, HBO amplifies the formation of ROS in DNA of UCB-CD34+ cells, potentially explaining their reduced proliferation, migration and erythrocytic differentiation. PMID- 29037941 TI - Pre-clinical assessment of the Lovo device for dimethyl sulfoxide removal and cell concentration in thawed hematopoietic progenitor cell grafts. AB - BACKGROUND: Cryopreserved hematopoietic progenitor cell (HPC) grafts are widely infused to patients with malignant and nonmalignant conditions. Despite reduction of immediate side effects linked to dimethyl sulfoxide (DMSO), cell debris containing grafts and comparable hematopoietic engraftment between washed and unwashed cryopreserved products, bedside infusion of thawed HPC grafts is still preferred. Introduction of automated devices is important for standardization and consistency of graft manipulation. Additionally, these techniques are likely to be useful for the delivery of innovative cell-based medicinal products that are currently under development. METHODS: In this study, we evaluated three consecutive versions of the Lovo device (Fresenius Kabi) for automated washing of thawed HPC products. A total of 42 HPC products intended for destruction were used. Measured outcomes included viable CD34+ cell recovery, viability, total processing time and post-washing stability. RESULTS: Preliminary data using the prototype Lovo 0.0 to process a single HPC unit showed better recovery and viability of CD34+ cells using a two-cycle than a three-cycle wash, with >95% DMSO elimination. The Lovo 1.0 performed equally well. When simultaneously processing two HPC units, the upgraded Lovo 2.0 device demonstrated comparable CD34+ recovery, DMSO elimination efficiencies and time-saving capacity. Furthermore, washed cell products were stable for 4 hours at room temperature. DISCUSSION: Lovo device satisfies clinically relevant issues: ability to efficiently wash two HPC units simultaneously and compatibility with transport to nearby transplantation centers. PMID- 29037942 TI - Evaluating the quality of a cell counting measurement process via a dilution series experimental design. AB - BACKGROUND AIMS: Cell counting measurements are critical in the research, development and manufacturing of cell-based products, yet determining cell quantity with accuracy and precision remains a challenge. Validating and evaluating a cell counting measurement process can be difficult because of the lack of appropriate reference material. Here we describe an experimental design and statistical analysis approach to evaluate the quality of a cell counting measurement process in the absence of appropriate reference materials or reference methods. METHODS: The experimental design is based on a dilution series study with replicate samples and observations as well as measurement process controls. The statistical analysis evaluates the precision and proportionality of the cell counting measurement process and can be used to compare the quality of two or more counting methods. As an illustration of this approach, cell counting measurement processes (automated and manual methods) were compared for a human mesenchymal stromal cell (hMSC) preparation. RESULTS: For the hMSC preparation investigated, results indicated that the automated method performed better than the manual counting methods in terms of precision and proportionality. DISCUSSION: By conducting well controlled dilution series experimental designs coupled with appropriate statistical analysis, quantitative indicators of repeatability and proportionality can be calculated to provide an assessment of cell counting measurement quality. This approach does not rely on the use of a reference material or comparison to "gold standard" methods known to have limited assurance of accuracy and precision. The approach presented here may help the selection, optimization, and/or validation of a cell counting measurement process. PMID- 29037943 TI - Mesenchymal stromal cells protect human cardiomyocytes from amyloid fibril damage. AB - BACKGROUND AIMS: Light chain (AL) amyloidosis is a protein misfolding disease characterized by extracellular deposition of immunoglobulin light chains (LC) as amyloid fibrils. Patients with LC amyloid involvement of the heart have the worst morbidity and mortality. Current treatments target the plasma cells to reduce further production of amyloid proteins. There is dire need to understand the mechanisms of cardiac tissue damage from amyloid to develop novel therapies. We recently reported that LC soluble and fibrillar species cause apoptosis and inhibit cell growth in human cardiomyocytes. Mesenchymal stromal cells (MSCs) can promote wound healing and tissue remodeling. The objective of this study was to evaluate MSCs to protect cardiomyocytes affected by AL amyloid fibrils. METHODS: We used live cell imaging and proteomics to analyze the effect of MSCs in the growth arrest caused by AL amyloid fibrils. RESULTS: We evaluated the growth of human cardiomyocytes (RFP-AC16 cells) in the presence of cytotoxic LC amyloid fibrils. MSCs reversed the cell growth arrest caused by LC fibrils. We also demonstrated that this effect requires cell contact and may be mediated through paracrine factors modulating cell adhesion and extracellular matrix remodeling. To our knowledge, this is the first report of MSC protection of human cardiomyocytes in amyloid disease. CONCLUSIONS: This important proof of concept study will inform future rational development of MSC therapy in cardiac LC amyloid. PMID- 29037944 TI - Identification of pyrrolo[2,3-d]pyrimidines as potent HCK and FLT3-ITD dual inhibitors. AB - A series of novel pyrrolo[2,3-d]pyrimidines were synthesized by introducing 15 different amino acids to 7-cyclohexyl-5-(4-phenoxyphenyl)-7H-pyrrolo[2,3 d]pyrimidine-4-amine. Compounds with potent activities against HCK and FLT3-ITD were evaluated in viability studies with acute myeloid leukemia cell line MV4-11. Our structure activity relationship analyses lead to the identification of compound 31, which exhibited potent HCK and FLT3-ITD inhibition and activity against the MV4-11 cell line. PMID- 29037945 TI - Enantioselective inhibitory abilities of enantiomers of notoamides against RANKL induced formation of multinuclear osteoclasts. AB - The marine-derived Aspergillus protuberus MF297-2 and the terrestrial A. amoenus NRRL 35600 produce enantiomeric prenylated indole alkaloids. Investigation of biological activities of the natural and synthetic derivatives revealed that (-) enantiomers of notoamides A and B, 6-epi-notoamide T, and stephacidin A inhibited receptor activator of nuclear factor-kappaB (NF-kappaB) ligand (RANKL)-induced osteoclastogenic differentiation of murine RAW264 cells more strongly than their respective (+)-enantiomers. Among them, (-)-6-epi-notoamide T was the most potent inhibitor with an IC50 value of 1.7MUM. PMID- 29037946 TI - Discovery of a novel 2,4-dimethylquinoline-6-carboxamide M4 positive allosteric modulator (PAM) chemotype via scaffold hopping. AB - This Letter details our efforts to replace the 3-amino moiety, an essential pharmacophore for M4 PAM activity in most M4 PAMs to date, within the thieno[2,3 b]pyridine core, as the beta-amino carboxamide motif has been shown to engender poor solubility, varying degrees of P-gp efflux and represents a structural alert. A scaffold hopping exercise identified a novel 2,4-dimethylquinoline carboxamide core that provided M4 PAM activity and good CNS penetration without an amino moiety. In addition, MacMillan photoredox catalysis chemistry was essential for construction of the 2,4-dimethylquinoline core. PMID- 29037947 TI - Discovery of benzo[g]indoles as a novel class of non-covalent Keap1-Nrf2 protein protein interaction inhibitor. AB - The Keap1-Nrf2 system is an attractive target for drug discovery regarding various unmet medical needs. Only covalent inhibitors for protein-protein interaction (PPI) between Keap1 and Nrf2 to activate Nrf2 have been approved or are under clinical trials, but such electrophilic compounds lack selectivity. Therefore, specific non-covalent Keap1-Nrf2 PPI inhibitors are expected to be safer Nrf2 activators. We found a novel class of non-covalent Keap1-Nrf2 PPI inhibitor that has a benzo[g]indole skeleton and an indole-3-hydroxamic acid moiety and that exhibits significant PPI inhibitory activity. Additionally, the benzo[g]indole-3-carbohydrazide derivatives were newly prepared. The benzo[g]indole derivatives showed a stronger Keap1-Nrf2 PPI inhibitory activity than Cpd16, a previously reported non-covalent PPI inhibitor. Moreover, most of the PPI inhibitors showed a high metabolic stability in a human microsome system with a low cytotoxicity against HepG2 cell lines, which suggests that novel benzo[g]indole-type Keap1-Nrf2 PPI inhibitors are expected to be biological tools or lead compounds for Nrf2 activators. PMID- 29037948 TI - Discovery of aminocyclohexene analogues as selective and orally bioavailable hNav1.7 inhibitors for analgesia. AB - hNav1.7 receives a lot of attention owing to its attractive mechanism of action in pain processing pathway. We have previously reported our design of a novel series of tetrahydropyridine analogues towards hNav1.7 selective inhibitors. Herein, we disclose further efforts to the optimization of hit compound (-)-6, which led to the identification of aminocyclohexene analogues (-)-9 and (-)-17 with good potency, high selectivity, and minimal CYP inhibition. Both compounds ( )-9 and (-)-17 demonstrated improved pharmacokinetic profiles in rats, and robust efficacy in rat formalin-induced nociception and spinal nerve ligation (SNL) models. PMID- 29037949 TI - Antibacterial activities of viriditoxin congeners and synthetic analogues against fish pathogens. AB - Viriditoxin is a fungal secondary metabolite of the fungus Paecilomyces variotii derived from the inner tissues of the giant jellyfish Nemopilema nomurai. Viriditoxin exhibits antibacterial activity against Streptococcus iniae and Streptococcus parauberis, which are major pathogens of aqua cultured fish. Viriditoxin induced abnormal cell morphologies in the fish pathogens S. iniae and S. parauberis, presumably by inhibiting FtsZ polymerization as was previously observed in Escherichia coli. Synthetic analogues of viriditoxin, designed based on docking simulation results to FtsZ of Staphylococcus aureus, were prepared and compared with viriditoxin for antibacterial activity. Reconstitution of free hydroxyl or carboxyl groups of the methoxyl or methyl ester groups of viriditoxin led to significant reduction of antibacterial activity, implying that the natural molecule is optimized for antibacterial activity to deter bacteria potentially harmful to Paecilomyces. PMID- 29037950 TI - Discovery of tranylcypromine analogs with an acylhydrazone substituent as LSD1 inactivators: Design, synthesis and their biological evaluation. AB - Lysine specific demethylase 1 (LSD1), the first identified histone demethylase, plays an important role in epigenetic regulation of gene activation and repression, has been reported to be up-regulated and involved in numbers of solid malignant tumors. In this study, we identified a series of phenylalanyl hydrazones based LSD1 inhibitors, and the most potent one, compound 4q, can inactivate LSD1 with IC50 = 91.83 nM. In cellular level, compound 4q can induce the accumulation of CD86 as well as H3K4me2, and inhibit gastric cancer cell proliferation by inactivating LSD1. Our findings indicated that compound 4q may serve as a potential leading compound to target LSD1 overexpressed gastric cancer. PMID- 29037951 TI - Design and synthesis of novel nitrogen mustard-evodiamine hybrids with selective antiproliferative activity. AB - A series of novel nitrogen mustard-evodiamine hybrids were synthesized and evaluated for their antitproliferative properties. The antiproliferative activities of 10a-d, 11a-d, and 12a-d against four different kinds of human cancer cell lines (PC-3, HepG2, THP-1 and HL-60) and human normal peripheral blood mononuclear cells (PBMC) were determined. The results showed that all the target hybrid compounds exhibited antiproliferative activities against tested human tumor cell lines to some extent and no antiproliferative activities (>200 MUM) against human normal PBMC cells. The antiproliferative selectivity between tumorous and normal cells was very useful for further antitumor drug development. Among the target compounds, 12c showed the strongest cytotoxicity against two tumor cell lines (THP-1 and HL-60) with IC50 values of 4.05 MUM and 0.50 MUM, respectively, and selected for further mechanism study in HL-60 cells. The results showed that 12c could induce HL-60 cells apoptosis and arrest at G2 phase at low sub-micromolar concentrations via mitochondria-related pathways. PMID- 29037952 TI - [Phenotype variability in thirteen 16p11.2 deletion patients]. PMID- 29037953 TI - [High-frequency users of Emergency Departments. Experience and failure of health education counselling]. PMID- 29037954 TI - [Hematemesis as debut of eosinophilic gastroenteritis in infants]. PMID- 29037955 TI - Single Molecule Arrays for ultra-sensitive detection of rat cytokines in serum. AB - Rats are used as animal models for many human diseases. Cytokines can serve as biomarkers indicative of these diseases or disease states. Techniques for measuring cytokine expression levels often do not provide the sensitivity needed to measure these biomarkers in biological fluids because the concentrations of many cytokines are below the detection limits of conventional methods. In this paper, we present ultra-sensitive digital immunoassays using Single Molecule Arrays (Simoa) for seven rat cytokines: TNF-alpha, IL-10, IL-17F, GM-CSF, IFN gamma, IL-4, and IL-1alpha. These ultra-sensitive immunoassays have limits of detection (LODs) in the femtomolar range and provide the ability to measure rat cytokines in serum below the LODs of conventional immunoassays. We also measured these cytokines in healthy rat serum to obtain baseline levels. The ability to measure cytokines present at low concentrations in rat serum will facilitate future studies of disease using rats as animal models. PMID- 29037956 TI - A simple and cost-effective assay for measuring anti-drug antibody in human patients treated with Adalimumab. AB - It has been reported that 90% of the anti-drug antibody (ADA) to Adalimumab in human patients bound to the TNF-binding area, resulted in the annual loss of responses to Adalimumab up to 24%. It is of urgency to develop a cost-effective and easy-to-use ADA diagnostic kit for diagnosis of potential drug-resistance in patients treated with Adalimumab in clinic hospitals to avoid the tremendous economic and human costs to patients and health-care providers. In this study, we reported the generations of mouse monoclonal and monkey polyclonal antibodies against Adalimumab as assay standards and positive quality controls respectively. A Bridging ELISA assay was successfully developed with a limit of detection (LOD) between 22-80ng/ml. The preliminary validation of assay was carried out first with 50 normal human sera, further validated by screening the ADA in 192 serum samples from monkeys treated with or without Adalimumab. Our data showed that the Bridging ELISA kit is very sensitive, highly specific and ready for study in human clinic trials. PMID- 29037957 TI - Magnetic Resonance Imaging in People With Cardiac Implantable Electronic Devices: A Population Based Cohort Study. AB - Magnetic resonance imaging (MRI) is a widely used diagnostic tool with great benefits but has been considered contraindicated in people with cardiac implantable electronic devices (CIED). We investigated the occurrence of MRI in people with CIEDs and associated adverse events in a national cohort. Of 17,848 people included, 56 (0.3%) had at least one MRI; 16 of 16,102 (0.1%) with MRI non compatible CIEDs and 40 of 1746 (2%) with MRI compatible CIEDs. Following MRI exposure, hospitalisations for potential serious adverse events were rare. PMID- 29037959 TI - Procalcitonin and antibiotic use: imperfect, yet effective. PMID- 29037958 TI - Expression of PD-1 and PD-L1 in poorly differentiated neuroendocrine carcinomas of the digestive system: a potential target for anti-PD-1/PD-L1 therapy. AB - Poorly differentiated neuroendocrine carcinoma of the digestive system has a dismal prognosis with limited treatment options. This study aimed to investigate expression of the PD-1/PD-L1 pathway in these tumors. Thirty-seven patients with a poorly differentiated neuroendocrine carcinoma of the digestive system were identified. Their electronic medical records, pathology reports, and pathology slides were reviewed for demographics, clinical history, and pathologic features. Tumor sections were immunohistochemically labeled for PD-1 and PD-L1, and expression of PD-1 and PD-L1 on tumor and tumor-associated immune cells was analyzed and compared between small cell and large cell neuroendocrine carcinomas. The mean age of patients was 61 years old with 18 men and 19 women. The colorectum (n=20) was the most common primary site; other primary sites included the pancreaticobiliary system, esophagus, stomach, duodenum, and ampulla. Expression of PD-1 was detected on tumor cells (n=6, 16%) as well as on tumor-associated immune cells (n=23, 63%). The 6 cases with PD-1 expression on tumor cells also had the expression on immune cells. Expression of PD-L1 was visualized on tumor cells in 5 cases (14%) and on tumor-associated immune cells in 10 cases (27%). There was no difference in PD-1 and PD-L1 expression between small cell and large cell neuroendocrine carcinomas. In conclusion, PD-1/PD-L1 expression is a frequent occurrence in poorly differentiated neuroendocrine carcinomas of the digestive system. Checkpoint blockade targeting the PD-1/PD-L1 pathway may have a potential role in treating patients with this disease. PMID- 29037961 TI - GADD45 family proteins suppress JNK signaling by targeting MKK7. AB - Growth arrest and DNA damage-inducible 45 (GADD45) family genes encode related proteins, including GADD45alpha, GADD45beta, and GADD45gamma. In HeLa cells, expression of GADD45 members is differentially regulated under a variety of environmental conditions, but thermal and genotoxic stresses induce the expression of all genes. The heat shock response of GADD45beta is mediated by the heat shock transcription factor 1 (HSF1), and GADD45beta is necessary for heat stress survival. Heat and genotoxic stress-induced activation of c-Jun N-terminal kinase (JNK) is suppressed by the expression of GADD45 proteins. GADD45 proteins bind the JNK kinase mitogen-activated protein kinase kinase 7 (MKK7) and inhibit its activity, even under normal physiological conditions. Our findings indicate that GADD45 essentially suppresses the MKK7-JNK pathway and suggest that differentially expressed GADD45 family members fine-tune stress-inducible JNK activity. PMID- 29037960 TI - Effect of procalcitonin-guided antibiotic treatment on mortality in acute respiratory infections: a patient level meta-analysis. AB - BACKGROUND: In February, 2017, the US Food and Drug Administration approved the blood infection marker procalcitonin for guiding antibiotic therapy in patients with acute respiratory infections. This meta-analysis of patient data from 26 randomised controlled trials was designed to assess safety of procalcitonin guided treatment in patients with acute respiratory infections from different clinical settings. METHODS: Based on a prespecified Cochrane protocol, we did a systematic literature search on the Cochrane Central Register of Controlled Trials, MEDLINE, and Embase, and pooled individual patient data from trials in which patients with respiratory infections were randomly assigned to receive antibiotics based on procalcitonin concentrations (procalcitonin-guided group) or control. The coprimary endpoints were 30-day mortality and setting-specific treatment failure. Secondary endpoints were antibiotic use, length of stay, and antibiotic side-effects. FINDINGS: We identified 990 records from the literature search, of which 71 articles were assessed for eligibility after exclusion of 919 records. We collected data on 6708 patients from 26 eligible trials in 12 countries. Mortality at 30 days was significantly lower in procalcitonin-guided patients than in control patients (286 [9%] deaths in 3336 procalcitonin-guided patients vs 336 [10%] in 3372 controls; adjusted odds ratio [OR] 0.83 [95% CI 0.70 to 0.99], p=0.037). This mortality benefit was similar across subgroups by setting and type of infection (pinteractions>0.05), although mortality was very low in primary care and in patients with acute bronchitis. Procalcitonin guidance was also associated with a 2.4-day reduction in antibiotic exposure (5.7 vs 8.1 days [95% CI -2.71 to -2.15], p<0.0001) and a reduction in antibiotic-related side-effects (16% vs 22%, adjusted OR 0.68 [95% CI 0.57 to 0.82], p<0.0001). INTERPRETATION: Use of procalcitonin to guide antibiotic treatment in patients with acute respiratory infections reduces antibiotic exposure and side-effects, and improves survival. Widespread implementation of procalcitonin protocols in patients with acute respiratory infections thus has the potential to improve antibiotic management with positive effects on clinical outcomes and on the current threat of increasing antibiotic multiresistance. FUNDING: National Institute for Health Research. PMID- 29037963 TI - Conversion between noise exposure indicators Leq24h, LDay, LEvening, LNight, Ldn and Lden: Principles and practical guidance. AB - This article presents empirically derived conversion rules between the environmental noise exposure metrics Leq24h, LDay, LEvening, LNight, Ldn, and Lden for the noise sources road, rail and air traffic. It caters to researchers that need to estimate the value of one (unknown) noise metric from the value of another (known) metric, e.g. in the scope of epidemiological meta-analyses or systematic reviews, when results from different studies are pooled and need to be related to one common exposure metric. Conversion terms are derived using two empirical methods a) based on analyzing the diurnal variation of traffic, and b) by analyzing differences between calculated noise exposure metrics. For a) we collected and analyzed diurnal traffic share data from European and US airports as well as data on the diurnal variation of traffic from roads in several European countries and from railway lines in Switzerland which were derived from counting stations and official records. For b) we calculated differences between noise metrics in over 50'000 stratified randomly sampled dwellings in Switzerland. As a result of this exercise, conversion terms, including uncertainty estimates, are systematically tabulated for all variants of the target metrics. Guidance as to the practical applicability of the proposed conversions in different contexts is provided, and limitations of their use are discussed. PMID- 29037962 TI - Mild palmitate treatment increases mitochondrial mass but does not affect EA.hy926 endothelial cells viability. AB - A dyslipidaemia-related increase of the concentration of long-chain fatty acids in the plasma is an important pathological factor substantially increasing risk of serious consequences in vascular endothelium. Inflammatory response, atherosclerosis and insulin resistance seem the most severe. Palmitate at excessive concentrations has been shown to have a harmful effect on endothelial cells impairing NO generation, stimulating reactive oxygen species (ROS) formation and affecting their viability. On the other hand we found that palmitate applied for 48 h at 100 MUM concentration which is sufficient to induce inflammatory response, increase ROS generation and reduce insulin sensitivity of EA.hy926 cells, unexpectedly also stimulates NO synthesis and increases mitochondrial mass, suggesting a pro-survival rather than anti-survival effect. This finding unveils a potential protective mechanism allowing cells to maintain their energy homeostasis under conditions of a moderate deregulation of lipid metabolism. PMID- 29037964 TI - Laparoscopic treatment for stranguled obturator hernia (with video). PMID- 29037965 TI - Prostate cancer-specific PET radiotracers: A review on the clinical utility in recurrent disease. AB - Prostate cancer-specific positron emission tomography (pcPET) has been shown to detect sites of disease recurrence at serum prostate-specific antigen (PSA) levels that are lower than those levels detected by conventional imaging. Commonly used pcPET radiotracers in the setting of biochemical recurrence are reviewed including carbon 11/fludeoxyglucose 18 (F-18) choline, gallium 68/F-18 prostate-specific membrane antigen (PSMA), and F-18 fluciclovine. Review of the literature generally favors PSMA-based agents for the detection of recurrence as a function of low PSA levels. Positive gallium 68/F-18 PSMA positron emission tomography/computed tomography scans detected potential sites of recurrence in a median 51.5% of patients when PSA level is <1.0 ng/mL, 74% of patients when PSA level is 1.0 to 2.0 ng/mL, and 90.5% of patients when PSA level is >2.0 ng/mL. Review of carbon 11/fludeoxyglucose 18 (F-18) choline and F-18 fluciclovine data commonly demonstrated lower detection rates for each respective PSA cohort, although with some important caveats, despite having similar operational characteristics to PSMA-based imaging. Sensitive pcPET imaging has provided new insight into the early patterns of disease spread, which has prompted judicious reconsideration of additional local therapy after either prostatectomy, definitive radiation therapy, or postprostatectomy radiation therapy. This review discusses the literature, clinical utility, availability, and fundamental understanding of pcPET imaging needed to improve clinical practice. PMID- 29037966 TI - Author Response: Congenital Toxoplasmosis, Cytomegalovirus, and Zika Virus Infections: Emphasis on the Role of Neuroimaging in Screening, Prognostication, and Follow-Up. PMID- 29037967 TI - Congenital Toxoplasmosis, Cytomegalovirus, and Zika Virus Infections. PMID- 29037968 TI - Recidive metastatique d'un cancer de la vulve sur la cheville. PMID- 29037969 TI - Recurrent Vulvar Cancer on the Ankle. PMID- 29037971 TI - To fight or mate? Hormonal control of sex recognition, male sexual behavior and aggression in the gecko lizard. AB - Squamate reptiles are a highly diversified vertebrate group with extensive variability in social behavior and sexual dimorphism. However, hormonal control of these traits has not previously been investigated in sufficient depth in many squamate lineages. Here, we studied the hormonal control of male sexual behavior, aggressiveness, copulatory organ (hemipenis) size and sex recognition in the gecko Paroedura picta, comparing ovariectomized females, ovariectomized females treated with exogenous dihydrotestosterone (DHT), ovariectomized females treated with exogenous testosterone (T), control females and males. The administration of both T and DHT led to the expression of male-typical sexual behavior in females. However, in contrast to T, increased circulating levels of DHT alone were not enough to initiate the full expression of male-typical offensive aggressive behavior and development of hemipenes in females. Ovariectomized females were as sexually attractive as control females, which does not support the need for the demasculinization of the cues used for sex recognition by ovarian hormones as suggested in other sauropsids. On the other hand, our results point to the masculinization of the sex recognition cues by male gonadal androgens. Previously, we also demonstrated that sexually dimorphic growth is controlled by ovarian hormones in P. picta. Overall, it appears that individual behavioral and morphological sexually-dimorphic traits are controlled by multiple endogenous pathways in this species. Variability in the endogenous control of particular traits could have permitted their disentangling during evolution and the occurrence of (semi)independent changes across squamate phylogeny. PMID- 29037973 TI - Comparison of anterior and posterior vertebral column resection versus anterior and posterior spinal fusion for severe and rigid scoliosis. AB - BACKGROUND CONTEXT: Many different correction methods have been reported to treat severe and rigid scoliosis. In the past, anterior and posterior spinal fusion (APSF), which included an anterior release followed by posterior instrumented fusion, was widely applied. In recent years, anterior/posterior vertebral column resection (APVCR) is used to treat severe and rigid scoliosis. PURPOSE: We aimed to compare the clinical results of APSF and APVCR for severe and rigid scoliosis. STUDY DESIGN: This is a retrospective, one-center, institutional review board approved study. PATIENT SAMPLE: A total of 48 patients with severe and rigid scoliosis treated by APSF or APVCR were enrolled. OUTCOME MEASURES: Comparisons between groups were made regarding the following variables: age at surgery, gender, etiology, flexibility of main curve, anterior release length, posterior fusion length, screw number, operation time, estimated blood loss, hospitalization time, follow-up duration, different radiological parameters, complication rate, and Scoliosis Research Society (SRS)-22 scores. METHODS: According to the operating technique, 48 patients with severe and rigid scoliosis were divided into two groups. In the first group, 26 patients were treated by APSF. In the second group, 22 patients were treated by APVCR. All patients had a minimum 2-year follow-up. The radiographic parameters as well as anterior release length, posterior fusion length, screw number, operation time, estimated blood loss, hospitalization time, complication rate, and demographic data were analyzed. RESULTS: There was no significant difference in age, gender, etiology, flexibility of main curve, anterior release length, posterior fusion length, screw number, and follow-up between the two groups. The APVCR group had longer operation and hospitalization time, and more blood loss. There was no significant difference in the preoperative main curve between the two groups, but the APVCR group had smaller main curve at postoperation and final follow-up, and higher correction rate at immediate postoperation and final follow-up. There was no significant difference in the preoperative, postoperative, and final follow-up thoracic kyphosis, and coronal and sagittal balance between the two groups. There was no significant difference in complication rate between the two groups. Analysis of the preoperative SRS-22 questionnaire revealed no difference between the two groups. At final follow-up, APSF and APVCR groups had similar scores in the function, pain, self-image, mental health, and satisfaction with the treatment domains. CONCLUSIONS: Compared with APSF, treating severe and rigid scoliosis by APVCR means longer operation and hospitalization time, and more blood loss, but it allows better correction rate of main curve. Furthermore, SRS 22 questionnaire improvement scores were similar for both correction methods. PMID- 29037972 TI - Sex differences in circuits activated by corticotropin releasing factor in rats. AB - Women are more likely than men to suffer from psychiatric disorders characterized by corticotropin releasing factor (CRF) hypersecretion, suggesting sex differences in CRF sensitivity. In rodents, sex differences in the sensitivity of specific brain regions to CRF have been identified. However, regions do not work in isolation, but rather form circuits to coordinate distinct responses to stressful events. Here we examined whether CRF activates different circuits in male and female rats. Following central administration of CRF or artificial cerebrospinal fluid (aCSF), neuronal activation in stress-related areas was assessed using cFOS. Functional connectivity was gauged by correlating the number of cFOS-positive cells between regions and then identifying differences within each sex in correlations for aCSF-treated and CRF-treated groups. This analysis revealed that CRF altered different circuits in males and females. As an example, CRF altered correlations involving the dorsal raphe in males and the bed nucleus of the stria terminalis in females, suggesting sex differences in stress activated circuits controlling mood and anxiety. Next, plasma estradiol and progesterone levels were correlated with cFOS counts in females. Negative correlations between estradiol and neuronal activation in the regions within the extended amygdala were found in CRF-treated, but not aCSF-treated females. This result suggests that estrogens and CRF together modulate the fear and anxiety responses mediated by these regions. Collectively, these studies reveal sex differences in the way brain regions work together in response to CRF. These differences could drive different stress coping strategies in males and females, perhaps contributing to sex biases in psychopathology. PMID- 29037974 TI - Impact of early unanticipated revision surgery on health-related quality of life after adult spinal deformity surgery. AB - BACKGROUND CONTEXT: Revision surgery represents a major event for patients undergoing adult spinal deformity (ASD) surgery. Previous reports suggest that ASD surgery has minimal or no impact on health-related-quality of life (HRQOL) outcomes. PURPOSE: The present study aims to investigate the impact of early reoperations within the first year on HRQOL and on the likelihood of reaching the minimally clinically important difference (MCID) after ASD surgery. DESIGN: This is a retrospective analysis of prospectively collected data from consecutive surgically treated adult deformity surgery patients included in a multicenter, international database. PATIENT SAMPLE: The present study included 280 patients from a multicenter international prospective database. OUTCOME MEASURE: Oswestry Disability Index (ODI), Short Form-36 (SF-36), Scoliosis Research Society-22 (SRS 22), MCID were evaluated in this work. METHODS: Consecutive surgical patients with ASD recruited prospectively in six different centers from four countries with a minimum 2-year follow-up were stratified into two groups: R (revision surgery within the first year) and NR (no revision). Health-related-quality of life (ODI, SF-36, SRS-22) was assessed and compared at 6-month, 1-year, and 2 year follow-up stages. Statistical analysis included chi-square tests, Student t tests, and linear mixed models. RESULTS: Forty-three patients (R Group) received 46 revision surgeries. Nineteen patients (41.3%) had implant-related complications, 9 patients (19.6%) had deep surgical site infections, 9 patients (19.6%) had proximal junctional kyphosis, 3 patients (6.5%) had hematoma, and 6 patients (13%) had other complications. Baseline characteristics differed between groups. At 6 months, all HRQOL scores improved in both groups, except in the SF 36 Mental Component Summary and SRS-22 mental health domain in the R Group. At 1 year, ODI and SRS-22 improvement was significantly greater in the NR Group, exceeding the reported MCID. At the 2-year follow-up, ODI, SRS-22, SF-36 MCS, and SF-36 PCS improvement was similar in both groups. However, postoperative change was only above the MCID for SF-36 PCS, ODI, and SRS-22 in the NR Group. CONCLUSIONS: Early unanticipated revision surgery has a negative impact on mental health at 6 months and reduces the chances of reaching an MCID improvement in SRS 22, SF-36 PCS, and ODI at the 2-year follow-up. PMID- 29037975 TI - Modular cell-based platform for high throughput identification of compounds that inhibit a viral interferon antagonist of choice. AB - Viral interferon (IFN) antagonists are a diverse class of viral proteins that counteract the host IFN response, which is important for controlling viral infections. Viral IFN antagonists are often multifunctional proteins that perform vital roles in virus replication beyond IFN antagonism. The critical importance of viral IFN antagonists is highlighted by the fact that almost all viruses encode one of these proteins. Inhibition of viral IFN antagonists has the potential to exert pleiotropic antiviral effects and thus this important protein class represents a diverse plethora of novel therapeutic targets. To exploit this, we have successfully developed and executed a novel modular cell-based platform that facilitates the safe and rapid screening for inhibitors of a viral IFN antagonist of choice. The platform is based on two reporter cell-lines that provide a simple method to detect activation of IFN induction or signaling via an eGFP gene placed under the control of the IFNbeta or an ISRE-containing promoter, respectively. Expression of a target IFN antagonist in the appropriate reporter cell-line will block the IFN response and hence eGFP expression. We hypothesized that addition of a compound that inhibits IFN antagonist function will release the block imposed on the IFN response and hence restore eGFP expression, providing a measurable parameter for high throughput screening (HTS). We demonstrate assay proof-of-concept by (i) exploiting hepatitis C virus (HCV) protease inhibitors to inhibit NS3-4A's capacity to block IFN induction and (ii) successfully executing two HTS targeting viral IFN antagonists that block IFN signaling; NS2 and IE1 from human respiratory syncytial virus (RSV) and cytomegalovirus (CMV) respectively, two clinically important viruses for which vaccine development has thus far been unsuccessful and new antivirals are required. Both screens performed robustly and Z' Factor scores of >0.6 were achieved. We identified (i) four hit compounds that specifically inhibit RSV NS2's ability to block IFN signaling by mediating STAT2 degradation and exhibit modest antiviral activity and (ii) two hit compounds that interfere with IE1 transcription and significantly impair CMV replication. Overall, we demonstrate assay proof-of-concept as we target viral IFN antagonists from unrelated viruses and demonstrate its suitability for HTS. PMID- 29037976 TI - Characterization of a dengue NS4B inhibitor originating from an HCV small molecule library. AB - Dengue is the most important mosquito-transmitted viral disease and a major global health concern. Over the last decade, dengue virus (DENV) drug discovery and development has intensified, however, this has not resulted in approved DENV specific antiviral treatments yet. DENV and hepatitis C virus (HCV) belong to the same Flaviviridae family and, in contrast to DENV, antiviral treatments for HCV have been licensed. Therefore, applying the knowledge gained on anti-HCV drugs may foster the discovery and development of dengue antiviral drugs. Here, we screened a library of compounds with established anti-HCV activity in a DENV-2 sub-genomic replicon inhibition assay and selected compounds with single-digit micromolar activity. These compounds were advanced into a hit-to-lead medicinal chemistry program resulting in lead compound JNJ-1A, which inhibited the DENV-2 sub-genomic replicon at 0.7 MUM, in the absence of cytotoxicity. In addition, JNJ 1A showed equipotent antiviral activity against DENV serotypes 1, 2, and 4. In vitro resistance selection experiments with JNJ-1A induced mutation T108I in non structural protein 4B (NS4B), pointing towards a mechanism of action linked to this protein. Collectively, we described the discovery and characterization of a novel DENV inhibitor potentially targeting NS4B. PMID- 29037977 TI - Toxocariasis in humans in Africa - A systematic review. AB - BACKGROUND: Toxocariasis is a globally distributed zoonosis. The most important definitive hosts are dogs, whereas humans serve as paratenic hosts. Transmission to humans occurs by accidental ingestion of eggs, e.g. by consumption of contaminated fruits or vegetables. Although exposure to Toxocara is usually considered as relatively benign, it is implicated in a range of neurological, ophthalmologic and other organ-specific conditions, some of them with grave consequences. This review provides an overview on the epidemiology, presentation and risk factors of exposure to Toxocara in Africa. METHODS: A systematic search was performed for studies published after January 1st, 1990, in English, French, Portuguese, Spanish, Dutch or German. The review was prepared according to PRISMA guidelines. Studies on toxocariasis in human populations and contamination in human environments were included. RESULTS: Sixty-five papers were included. Antibodies against Toxocara spp. in humans were found to be very common across Africa. Severe manifestations have been reported mainly from North Africa. Environmental contamination including soil, vegetables and fruits sold on markets was demonstrated in various locations in Africa. CONCLUSIONS: Exposure to Toxocara is prevalent across the African continent. However, the complication frequency, the impact of the condition on the individual and the public health relevance of this zoonosis, and the economic impact have never been systematically evaluated. PMID- 29037978 TI - Expected immunizations and health protection for Hajj and Umrah 2018 -An overview. AB - BACKGROUND: The annual Hajj and Umrah are one of the largest recurring religious mass gatherings across the globe drawing pilgrims from more than 185 countries. The living circumstances and activities of the pilgrims may create an environment for the occurrence and spread of communicable diseases. Each year, the Health authority of the Kingdom of Saudi Arabia, in coordination with international health authorities, updates health requirements for pilgrims. The Hajj for 2017 took place from August 24 to September 5, 2017. Here, we review the expected obligations for immunizations for the 2018 Hajj and Umrah. RESULTS: The Hajj and Umrah vaccine requirements include mandatory vaccinations against yellow fever, quadrivalent meningococcal polysaccharide (every 3 years) or conjugated (every 5 years) vaccines and poliomyelitis vaccine. Influenza vaccine utilizing the 2016 (Southern Hemisphere vaccine to all pilgrims) was recommended but was not obligatory for pilgrims. Ciprofloxacin is required for individuals >12 years excluding pregnant women as chemoprophylaxis to be given at the port of entry for Pilgrims coming from the meningitis belt. With the ongoing outbreaks of measles in Europe, it is recommended that all pilgrims have an updated immunization against vaccine-preventable diseases (diphtheria, tetanus, pertussis, polio, measles and mumps). CONCLUSION: The mandatory vaccines remain the same with continued vigilance for the development of any new or emerging infectious diseases. Continuing surveillance for Zika virus, cholera and MERS-CoV are ongoing. PMID- 29037970 TI - Early years postgraduate surgical training programmes in the UK are failing to meet national quality standards: An analysis from the ASiT/BOTA Lost Tribe prospective cohort study of 2,569 surgical trainees. AB - INTRODUCTION: This study aimed to assess training of Senior House Officer-grade equivalent doctors in postgraduate surgical training or service (SHO-DIPST) in surgical specialties across the United Kingdom (UK), against nationally agreed Joint Committee on Surgical Training Quality Indicators (JCST QIs). Specific recommendations are made, with a view to improving quality of training, workforce retention and recruitment to Higher Surgical Training. METHOD: Prospective, observational, multicentre study conducted by the Association of Surgeons in Training, using the UK National Research Collaborative model. Any centres in the UK providing acute surgical services were eligible. SHO-DIPST with a permanent contract, on out-of-hours 'on-call rota' were included across four, one-week data capture periods (September to October 2016, February to March 2017). Adherence to five quality indicators was reported using descriptive statistics. P-values were calculated using Student's t-test for continuous data, with a 5% level of significance. RESULTS: 2569 SHO-DIPST were included from all ten surgical specialties in 141 NHS trusts across all 16 Local Education and Training Boards in the UK. 960 SHO-DIPST were in registered 'training' posts (37.3%). The median number of SHO-DIPST per rota was 7.0 (IQR 5.0-9.0). Adherence to the five included JCST QIs ranged from 6.0 to 53.1%. Only four SHO-DIPST posts across the study population met all five JCST QIs (0.3%). The total number of training sessions was higher for those in registered training posts (p < 0.001), with significant specialty and regional variation. CONCLUSIONS: Only four early years postgraduate surgical training posts in the UK meet nationally approved minimum quality standards. Specific recommendations are made to improve training in this cohort and to bolster recruitment and retention into Higher Surgical Training. PMID- 29037979 TI - Maritime illness and death reporting and public health response, United States, 2010-2014. AB - BACKGROUND: Deaths and certain illnesses onboard ships arriving at US ports are required to be reported to the US Centers for Disease Control and Prevention (CDC), and notifications of certain illnesses are requested. METHODS: We performed a descriptive analysis of required maritime illness and death reports of presumptive diagnoses and requested notifications to CDC's Division of Global Migration and Quarantine, which manages CDC's Quarantine Stations, from January 2010 to December 2014. RESULTS: CDC Quarantine Stations received 2891 individual maritime case reports: 76.8% (2221/2891) illness reports, and 23.2% (670/2891) death reports. The most frequent individual illness reported was varicella (35.9%, 797/2221) and the most frequently reported causes of death were cardiovascular- or pulmonary-related conditions (79.6%, 533/670). There were 7695 cases of influenza-like illness received within aggregate notifications. CDC coordinated 63 contact investigations with partners to identify 972 contacts; 88.0% (855/972) were notified. There was documentation of 6.5% (19/293) receiving post-exposure prophylaxis. Three pertussis contacts were identified as secondary cases; and one tuberculosis contact was diagnosed with active tuberculosis. CONCLUSION: These data provide a picture of US maritime illness and death reporting and response. Varicella reports are the most frequent individual disease reports received. Contact investigations identified few cases of disease transmission. PMID- 29037980 TI - Improved stability of live attenuated vaccine gdhA derivative Pasteurella multocida B:2 by freeze drying method for use as animal vaccine. AB - The efficacy of attenuated strain of gdhA derivative Pasteurella multocida B:2 mutant as a live vaccine to control haemorrhagic septicaemia (HS) disease in cattle and buffaloes has been demonstrated. In order to use P. multocida B:2 mutant as a commercial product, it is essential to optimise its formulation for high viability and stability of the live cells. The effectiveness of freeze drying process using different protective agent formulations for improving cells viability was explored. Sugar and nitrogen compounds were used as protective agents in freeze-drying and the capability of these compounds in maintaining the viability of mutant P. multocida B:2 during subsequent storage was investigated. A complete loss in viability of freeze-dried mutant P. multocida B:2 was monthly observed until 6-12 months of storage at -30 degrees C, 4 degrees C and 27 degrees C when nitrogen compound or no protective agent was added. Trehalose and sucrose showed significantly high survival rate of 93-95% immediately after freeze-drying and the viability was retained during the subsequent storage at -30 degrees C and 4 degrees C. A smooth cell surface without any cell-wall damage was observed for the cells formulated with trehalose under scanning electron micrograph. This study presented a freeze-drying process generating a dried live attenuated vaccine formulation with high stability for commercial applications. PMID- 29037981 TI - Effect of incubation temperature after devitrification on quality parameters in human sperm cells. AB - Sperm cryopreservation is common in assisted reproduction laboratories, providing a therapeutic option for several clinical conditions. This process has been optimized; however, the effect of post-thaw incubation temperature has been poorly studied. This work analyzed the effect of incubation temperature after devitrification on human sperm quality. Spermatozoa from normozoospermic donors were cryopreserved by vitrification. After devitrification, the spermatozoa were separated into two aliquots: (i) incubated at room temperature (RT, 22-25 degrees C) and (ii) incubated at 37 degrees C. Reactive oxygen species (ROS), viability, mitochondrial membrane potential (DeltaPsiM), phosphatidylserine externalization and motility were analyzed immediately after devitrification (control) and after 2, 4 and 6 h. Spermatozoa incubated at RT showed a conserved viability and DeltaPsiM compared to the control, while the incubation at 37 degrees C promoted a decrease in these parameters. The ROS levels were increased at both incubation conditions. The progressive motility was decreased in all experimental groups and the decrease was more pronounced under incubation at RT. No increase in phosphatidylserine externalization was observed. In conclusion, prior to use in assisted reproduction procedures, devitrified spermatozoa at RT conserve a better viability and DeltaPsiM than at 37 degrees C. PMID- 29037982 TI - Early effects of Epac depend on the fine-tuning of the sarcoplasmic reticulum Ca2+ handling in cardiomyocytes. AB - In cardiac muscle, signaling through cAMP governs many fundamental cellular functions, including contractility, relaxation and automatism. cAMP cascade leads to the activation of the classic protein kinase A but also to the stimulation of the recently discovered exchange protein directly activated by cAMP (Epac). The role of Epac in the regulation of intracellular Ca2+ homeostasis and contractility in cardiac myocytes is still matter of debate. In this study we showed that the selective Epac activator, 8-(4-chloro-phenylthio)-2'-O methyladenosine-3', 5'-cyclic monophosphate (8-CPT), produced a positive inotropic effect when adult rat cardiac myocytes were stabilized at low [Ca2+]o (0.5mM), no changes at 1mM [Ca2+]o and a negative inotropic effect when [Ca2+]o was increased to 1.8mM. These effects were associated to parallel variations in sarcoplasmic reticulum (SR) Ca2+ content. At all [Ca2+]o studied, 8-CPT induced an increase in Ca2+ spark frequency and enhanced CaMKII autophosphorylation and the CaMKII-dependent phosphorylation of SR proteins: phospholamban (PLN, at Thr17 site) and ryanodine receptor (RyR2, at Ser2814 site). We used transgenic mice lacking PLN CaMKII phosphorylation site (PLN-DM) and knock-in mice with an inactivated CaMKII site S2814 on RyR2 (RyR2-S2814A) to investigate the involvement of these processes in the effects of Epac stimulation. In PLN-DM mice, 8-CPT failed to induce the positive inotropic effect at low [Ca2+]o and RyR2-S2814A mice showed no propensity to arrhythmic events when compared to wild type mice myocytes. We conclude that stimulation of Epac proteins could have either beneficial or deleterious effects depending on the steady-state Ca2+ levels at which the myocyte is functioning, favoring the prevailing mechanism of SR Ca2+ handling (uptake vs. leak) in the different situations. PMID- 29037985 TI - Adjuvant zoledronic acid to treat breast cancer: not for all. PMID- 29037984 TI - Effect of MAF amplification on treatment outcomes with adjuvant zoledronic acid in early breast cancer: a secondary analysis of the international, open-label, randomised, controlled, phase 3 AZURE (BIG 01/04) trial. AB - BACKGROUND: Adjuvant use of bisphosphonates can reduce the incidence of bone metastases in early breast cancer. Recurrence and survival seem to be improved only in postmenopausal patients, but the underlying mechanisms remain unclear. We investigated whether MAF amplification (a biomarker for bone metastasis) in primary tumours could predict the treatment outcomes of adjuvant zoledronic acid. METHODS: The study population included patients enrolled in the international, open-label, randomised, controlled, phase 3 AZURE trial at eligible UK sites who had stage II or III breast cancer and who gave consent for use of their primary tumour samples. Patients were randomly assigned (1:1) to receive standard adjuvant systemic therapy alone (control group) or with zoledronic acid every 3-4 weeks for six doses, then every 3-6 months until the end of 5 years. Minimisation took into account the number of involved axillary lymph nodes, clinical tumour stage, oestrogen-receptor status, type and timing of systemic therapy, menopausal status, statin use, and treating centre. The primary endpoint was disease-free survival; the secondary endpoint, invasive-disease-free survival, was the primary disease endpoint for the analysis in this report. MAF amplification was assessed by fluorescence in-situ hybridisation of two cores of breast tumour tissue in a microarray, done in a central laboratory by technicians unaware of treatment assignment. We used multivariate analyses to assess disease outcomes by intention to treat. We also assessed interactions between MAF-positive status and menopausal status on efficacy of zoledronic acid. The AZURE trial is registered with the International Standard Randomised Controlled Trial Registry, number ISRCTN79831382. FINDINGS: 1739 AZURE patients contributed primary tumour samples, of whom 865 (50%) had two assessable cores (445 in the control groups and 420 in the zoledronic acid group). 184 (21%) tumours were MAF positive (85 in the control groups and 99 in the zoledronic acid group) and the remaining tumours were MAF negative. At a median follow-up of 84.6 months (IQR 72.0-95.8), MAF status was not prognostic for invasive-disease-free survival in the control group (MAF-positive vs MAF-negative: hazard ratio [HR] 0.92, 95% CI 0.59-1.41), but was in the zoledronic acid group (0.52, 0.36-0.75). In patients with MAF-negative tumours, zoledronic acid was associated with higher invasive-disease-free survival than was control treatment (HR 0.74, 95% CI 0.56-0.98), but not in patients who had MAF-positive tumours. Additionally, among 121 patients not postmenopausal at randomisation with MAF-positive tumours, zoledronic acid was associated with lower invasive-disease-free survival (HR 2.47, 95% CI 1.23-4.97) and overall survival (2.27, 95% CI 1.04-4.93) than control treatment. INTERPRETATION: MAF status can predict likelihood of benefit from adjuvant zoledronic acid and merits further investigation as a potential companion diagnostic. FUNDING: Novartis Global and Inbiomotion. PMID- 29037983 TI - Safety, pharmacokinetics, and antitumour activity of trastuzumab deruxtecan (DS 8201), a HER2-targeting antibody-drug conjugate, in patients with advanced breast and gastric or gastro-oesophageal tumours: a phase 1 dose-escalation study. AB - BACKGROUND: Antibody-drug conjugates have emerged as a powerful strategy in cancer therapy and combine the ability of monoclonal antibodies to specifically target tumour cells with the highly potent killing activity of drugs with payloads too toxic for systemic administration. Trastuzumab deruxtecan (also known as DS-8201) is an antibody-drug conjugate comprised of a humanised antibody against HER2, a novel enzyme-cleavable linker, and a topoisomerase I inhibitor payload. We assessed its safety and tolerability in patients with advanced breast and gastric or gastro-oesophageal tumours. METHODS: This was an open-label, dose escalation phase 1 trial done at two study sites in Japan. Eligible patients were at least 20 years old with breast or gastric or gastro-oesophageal carcinomas refractory to standard therapy regardless of HER2 status. Participants received initial intravenous doses of trastuzumab deruxtecan from 0.8 to 8.0 mg/kg and dose-limiting toxicities were assessed over a 21-day cycle; thereafter, dose reductions were implemented as needed and patients were treated once every 3 weeks until they had unacceptable toxic effects or their disease progressed. Primary endpoints included identification of safety and the maximum tolerated dose or recommended phase 2 dosing and were analysed in all participants who received at least one dose of study drug. The dose-escalation study is the first part of a two-part study with the second dose-expansion part ongoing and enrolling patients as of July 8, 2017, in Japan and the USA. This trial is registered at ClinicalTrials.gov, number NCT02564900. FINDINGS: Between Aug 28, 2015, and Aug 26, 2016, 24 patients were enrolled and received trastuzumab deruxtecan (n=3 for each of 0.8, 1.6, 3.2, and 8.0 mg/kg doses; n=6 for each of 5.4 and 6.4 mg/kg). Up to the study cutoff date of Feb 1, 2017, no dose-limiting toxic effects, substantial cardiovascular toxic effects, or deaths occurred. One patient was removed from the activity analysis because they had insufficient target lesions for analysis. The most common grade 3 adverse events were decreased lymphocyte (n=3) and decreased neutrophil count (n=2); and grade 4 anaemia was reported by one patient. Three serious adverse events-febrile neutropenia, intestinal perforation, and cholangitis-were reported by one patient each. Overall, in 23 evaluable patients, including six patients with low HER2 expressing tumours, ten patients achieved an objective response (43%, 95% CI 23.2 65.5). Disease control was achieved in 21 (91%; 95% CI 72.0-98.9) of 23 patients. Median follow-up time was 6.7 months (IQR 4.4-10.2), with nine (90%) of ten responses seen at doses of 5.4 mg/kg or greater. INTERPRETATION: The maximum tolerated dose of trastuzumab deruxtecan was not reached. In this small, heavily pretreated study population, trastuzumab deruxtecan showed antitumour activity, even in low HER2-expressing tumours. Based on safety and activity, the most likely recommended phase 2 dosing is 5.4 or 6.4 mg/kg. FUNDING: Daiichi Sankyo Co, Ltd. PMID- 29037986 TI - Antibody-drug conjugates: can the payload improve activity in HER2 expressing cancers? PMID- 29037987 TI - RNA methylation regulates hematopoietic stem and progenitor cell development. PMID- 29037988 TI - Efficient genetic manipulation in the developing brain of tree shrew using in utero electroporation and virus infection. PMID- 29037989 TI - Genome wide abnormal DNA methylome of human blastocyst in assisted reproductive technology. AB - Proper reprogramming of parental DNA methylomes is essential for mammalian embryonic development. However, it is unknown whether abnormal methylome reprogramming occurs and is associated with the failure of embryonic development. Here we analyzed the DNA methylomes of 57 blastocysts and 29 trophectoderm samples with different morphological grades during assisted reproductive technology (ART) practices. Our data reveal that the global methylation levels of high-quality blastocysts are similar (0.30 +/- 0.02, mean +/- SD), while the methylation levels of low-quality blastocysts are divergent and away from those of high-quality blastocysts. The proportion of blastocysts with a methylation level falling within the range of 0.30 +/- 0.02 in different grades correlates with the live birth rate for that grade. Moreover, abnormal methylated regions are associated with the failure of embryonic development. Furthermore, we can use the methylation data of cells biopsied from trophectoderm to predict the blastocyst methylation level as well as to detect the aneuploidy of the blastocysts. Our data indicate that global abnormal methylome reprogramming often occurs in human embryos, and suggest that DNA methylome is a potential biomarker in blastocyst selection in ART. PMID- 29037990 TI - Roles for the VCP co-factors Npl4 and Ufd1 in neuronal function in Drosophila melanogaster. AB - The VCP-Ufd1-Npl4 complex regulates proteasomal processing within cells by delivering ubiquitinated proteins to the proteasome for degradation. Mutations in VCP are associated with two neurodegenerative diseases, amyotrophic lateral sclerosis (ALS) and inclusion body myopathy with Paget's disease of the bone and frontotemporal dementia (IBMPFD), and extensive study has revealed crucial functions of VCP within neurons. By contrast, little is known about the functions of Npl4 or Ufd1 in vivo. Using neuronal-specific knockdown of Npl4 or Ufd1 in Drosophila melanogaster, we infer that Npl4 contributes to microtubule organization within developing motor neurons. Moreover, Npl4 RNAi flies present with neurodegenerative phenotypes including progressive locomotor deficits, reduced lifespan and increased accumulation of TAR DNA-binding protein-43 homolog (TBPH). Knockdown, but not overexpression, of TBPH also exacerbates Npl4 RNAi associated adult-onset neurodegenerative phenotypes. In contrast, we find that neuronal knockdown of Ufd1 has little effect on neuromuscular junction (NMJ) organization, TBPH accumulation or adult behaviour. These findings suggest the differing neuronal functions of Npl4 and Ufd1 in vivo. PMID- 29037991 TI - Vegfa signaling regulates diverse artery/vein formation in vertebrate vasculatures. AB - Vascular endothelial growth factor A (Vegfa) signaling regulates vascular development during embryogenesis and organ formation. However, the signaling mechanisms that govern the formation of various arteries/veins in various tissues are incompletely understood. In this study, we utilized transcription activator like effector nuclease (TALEN) to generate zebrafish vegfaa mutants. vegfaa-/- embryos are embryonic lethal, and display a complete loss of the dorsal aorta (DA) and expansion of the cardinal vein. Activation of Vegfa signaling expands the arterial cell population at the expense of venous cells during vasculogenesis of the axial vessels in the trunk. Vegfa signaling regulates endothelial cell (EC) proliferation after arterial-venous specification. Vegfa deficiency and overexpression inhibit the formation of tip cell filopodia and interfere with the pathfinding of intersegmental vessels (ISVs). In the head vasculature, vegfaa-/- causes loss of a pair of mesencephalic veins (MsVs) and central arteries (CtAs), both of which usually develop via sprouting angiogenesis. Our results indicate that Vegfa signaling induces the formation of the DA at the expense of the cardinal vein during the trunk vasculogenesis, and that Vegfa is required for the angiogenic formation of MsVs and CtAs in the brain. These findings suggest that Vegfa signaling governs the formation of diverse arteries/veins by distinct cellular mechanisms in vertebrate vasculatures. PMID- 29037992 TI - Autophagy-related protein ATG5 regulates histone H2B mono-ubiquitylation by translational control of RNF20. PMID- 29037993 TI - Omalizumab response in patients with chronic idiopathic urticaria: Insights from the XTEND-CIU study. PMID- 29037994 TI - Ethical challenges with treating nonadherent patients in a group practice setting. PMID- 29037996 TI - Synthesis, anti-cancer screening and tyrosyl-DNA phosphodiesterase 1 (Tdp1) inhibition activity of novel piperidinyl sulfamides. AB - Novel piperidinyl-based sulfamide derivatives were designed and synthesized through various synthetic routes. Anticancer activities of these sulfamides were evaluated by phenotypic screening on National Cancer Institute's 60 human tumor cell lines (NCI-60). Preliminary screening at 10MUM concentration showed that piperidinyl sulfamide aminoester 26 (NSC 749204) was sensitive to most of the cell lines in the panel. Further dose-response studies showed that 26 was highly selective for inhibition of colon cancer cell lines with minimum GI50=1.88MUM for COLO-205 and maximum GI50=11.1MUM for SW-620 cells. These newly synthesized sulfamides were also screening for their Tdp1 inhibition activity. Compound 18 (NSC 750706) showed significant inhibition of Tdp1 with IC50=23.7MUM. Molecular docking studies showed that 18 bind to Tdp1 in its binding pocket similar to a known Tdp1 inhibitor. PMID- 29037995 TI - Preclinical pharmacokinetic profiling of IQG-607, a potential oral metallodrug to treat tuberculosis. AB - IQG-607 is an analog of isoniazid with anti-tuberculosis activity. This work describes the development and validation of an HPLC method to quantify pentacyano(isoniazid)ferrate(II) compound (IQG-607) and the pharmacokinetic studies of this compound in mice. The method showed linearity in the 0.5-50MUg/mL concentration range (r=0.9992). Intra- and inter-day precision was <5%, and the recovery ranged from 92.07 to 107.68%. IQG-607 was stable in plasma for at least 30days at -80 degrees C and, after plasma processing, for 4h in the auto-sampler maintained on ice (recovery >85%). The applicability of the method for pharmacokinetic studies was determined after intravenous (i.v.) and oral (fasted and fed conditions) administration to mice. IQG-607 levels in plasma were quantified at time points for up to 2.5h. A short half-life (t1/2) (1.14h), a high clearance (CL) (3.89L/h/kg), a moderate volume of distribution at steady state (Vdss) of 1.22L/kg, were observed after i.v. (50mg/kg) administration. Similar results were obtained for oral administration (250mg/kg) under fasted and fed conditions. The oral bioavailability (F), approximately 4%, was not altered by feeding. Plasma protein binding was 88.87+/-0.9%. The results described here provide novel insights into a pivotal criterion to warrant further efforts to be pursued towards attempts to translate this chemical compound into a chemotherapeutic agent to treat TB. PMID- 29037998 TI - Identification and analysis of the genetic causes in nine unrelated probands with syndromic craniosynostosis. AB - Syndromic craniosynostosis is a group of multiple conditions with high heterogeneity, and many rare syndromes still remain to be characterized. To identify and analyze causative genetic variants in nine unrelated probands mainly manifested as syndromic craniosynostosis, we reviewed the relevant medical information of the patients and performed the whole exome sequencing, further verified with Sanger sequencing and parental background. Bioinformatics analysis was used to evaluate the potential deleterious or benign effect of each genetic variant through evolutionary conservation alignment, multi-lines of computer predication and the allele frequency in population dataset (control and patient). The Standards and guidelines from American College of Medical Genetics and Genomics was used to classify and interpret the pathogenicity for each genetic variant. All the nine probands were found to carry the possibly causative variants, among which three variants including two missense mutations (c.3385C>T in IFT122 gene, c.3581A>G in SMC1A gene) and a frameshift mutation (c.434dupA in TWIST1 gene) have never been reported in patients before. We suggested Cornelia de Lange syndrome caused by SMC1A variant is a neglected syndromic craniosynostosis. Our study not only expanded genotypic and phenotypic spectrum of the rare syndromes, but also confirmed that there existed an underlying genetic mechanism. We emphasized that deliberate selection of both the potential candidates and comprehensive detection methods for genetic analysis is important to increase the genetic diagnosis yield of syndromic craninosynostosis. PMID- 29037997 TI - The ERAP gene is associated with HCV chronic infection in a Chinese Han population. AB - Endoplasmic reticulum aminopeptidases (ERAPs), ERAP1 and ERAP2, are critical components in the antigen-presentation system and are specialized to produce optimal-sized peptides for HLA I binding. ERAP gene polymorphisms have been correlated with HLA-associated diseases. To investigate the association between ERAP gene polymorphisms and HCV chronic infection, a TaqMan assay was used to genotype 4 SNPs (rs27044, rs30187, rs26618 and rs26653) in ERAP1 and 2 SNPs (rs2248374 and rs2549782) in ERAP2 genes in 376 Chinese Han HCV chronic infections and 324 healthy Chinese Han controls. The allelic distribution of rs26618 in the ERAP1 gene and rs2248374 in ERAP2 gene were both significantly different in case and control groups. The C-allele of rs26618 had an increased HCV chronicity risk compared with the T-allele (P=.025, OR=1.318, 95%CI: 1.035 1.677), and the same effect was found in A-allele of rs2248374 compared with G allele (P=0.046, OR=1.244, 95%CI: 1.004-1.540). There were notable differences in the genotype distribution in analysis using the dominant genetic model in rs26618 (CC+CT vs. TT; P=0.007, OR=1.473, 95%CI: 1.091-1.989) and recessive genetic model in rs2248374 (AA vs. AG+GG; P=0.003, OR=1.548, 95%CI: 1.026-2.335). In addition, rs26618 and rs2248374-genotype combination played noteable effects on the clinical parameters. These results indicated that the ERAP gene may play a critical role in HCV chronicity in this Chinese Han population. PMID- 29037999 TI - Protective effect of silk fibroin in burn injury in rat model. AB - Activation of pro-inflamatuar pathways play major role in formation of major complications as a result of burns. This study was planned to investigate the protective effect of Silk Fibroin in lung injury caused by burn in the experimental rat model. After rinsing the skin of rats under ether anesthesia, the exposed back region, covers 30% of the total body, was kept in the 90 degrees C water bath for 10s. The control rats were kept in the 25 degrees C water bath for 10s. Immediately after burning process, silk fibroin was administered orally at a dose of 600mg/kg. After 24h following burning from all groups the levels of TNF-alpha, IL-1beta in blood samples and the MDA, GSH and the activity of MPO were determined from taken lung tissues. Moreover, the expression of Bcl-2/Bax, Caspase-3 and Caspase-9 were determined. Significant increase in TNF-alpha, IL 1beta, Casp-3 and Casp-9 levels were observed in the Silk Fibroin-treated burn group (p<0.05) whereas for ratio of Bcl-2/Bax, a significant reduction was observed compared to control group (p<0.05). Increased levels of TNF-alpha, IL 1beta, Caspase-3 and Caspase-9 in Silk Fibroin-treated burn groups were found to be reversed. Silk fibroin can be an effective biomaterial in diminishing burn injury in tissue and apoptosis. PMID- 29038000 TI - Epigenetic regulation of miR-200 as the potential strategy for the therapy against triple-negative breast cancer. AB - MicroRNAs (miRNAs) are a class of small, non-coding RNAs that are involved in the regulation of gene expression at the post-transcriptional level. MicroRNAs play an important role in cancer cell proliferation, survival and apoptosis. Epigenetic modifiers regulate the microRNA expression. Among the epigenetic players, histone deacetylases (HDACs) function as the key regulators of microRNA expression. Epigenetic machineries such as DNA and histone modifying enzymes and various microRNAs have been identified as the important contributors in cancer initiation and progression. Recent studies have shown that developing innovative microRNA-targeting therapies might improve the human health, specifically against the disease areas of high unmet medical need. Thus microRNA based therapeutics are gaining importance for anti-cancer therapy. Studies on Triple negative breast cancer (TNBC) have revealed the early relapse and poor overall survival of patients which needs immediate therapeutic attention. In this report, we focus the effect of HDAC inhibitors on TNBC cell proliferation, regulation of microRNA gene expression by a series of HDAC genes, chromatin epigenetics, epigenetic remodelling at miR-200 promoter and its modulation by various HDACs. We also discuss the need for identifying novel HDAC inhibitors for modulation of miR-200 in triple negative breast cancer. PMID- 29038001 TI - G0S2a1 (G0/G1 switch gene 2a1) is downregulated by TNF-alpha in grass carp (Ctenopharyngodon idellus) hepatocytes through PPARalpha inhibition. AB - G0/G1 switch gene 2 plays an important role in the regulation of lipolysis in mammals, but little is known about its gene (G0S2) structure and function in fish. In the present study, two genes, G0S2a and G0S2b were isolated and characterized from grass carp Ctenopharyngodon idella, which encode peptides of 111 and 84 amino acids, respectively. Moreover, alternative multiple exon usage resulted in a significant variation in the 5'-region of G0S2a transcripts yielding two isoforms (G0S2a1 and G0S2a2). Phylogenetic and synteny analyses indicated that G0S2a and G0S2b could have originated from the teleost-specific genome duplication event. Analysis of the exon-intron structures clarified that G0S2a contained an extra intron compared with G0S2b. G0S2a1, G0S2a2 and G0S2b mRNAs were highly expressed in adipose tissue and liver. G0S2a was localized to the cytoplasm and nucleus, while G0S2b was mainly localized in cytoplasm, suggesting that G0S2a and G0S2b may have different functions in grass carp. PPARalpha agonist caused an increase in G0S2a1 and G0S2b expression, revealing that they are subject to transcriptional control by PPARalpha-mediated signals. TNF-alpha treatment decreased G0S2a1 and G0S2a2 transcripts that paralleled TNF alpha downregulation of PPARalpha; however, only the effects of TNF-alpha on G0S2a1 were attenuated by treatment with PPARalpha agonist. Our findings identify G0S2a, not G0S2b, as a target gene for TNF-alpha and reveal that TNF-alpha suppresses G0S2a1 gene expression through a PPARalpha-dependent pathway in grass carp hepatocytes. PMID- 29038002 TI - Comparison of different nucleic acid preparation methods to improve specific HIV 1 RNA isolation for viral load testing on dried blood spots. AB - In resource-limited countries (RLCs), WHO recommends HIV viral load (VL) on dried blood spots (DBS) for antiretroviral therapy (ART) monitoring of patients living in non-urban settings where plasma VL is not available. In order to reduce the impact of proviral DNA interference, leading to false positive results in samples with low plasma VL, we compared three different nucleic acid preparation methods with the NucliSens (Biomerieux) extraction, known for its high recovery of nucleic acids on DBS. Paired plasma-DBS samples (n=151) with predominantly low plasma VL (<=10,000 copies/ml; 74%) were used. At the threshold of 1,000 copies/ml on DBS, 51% and 10% were misclassified as false positives or false negatives, respectively with NucliSens, versus 41% and 20% with m2000sp (Abbott), described as more specific for RNA recovery. DNase treatments of nucleic acid extracts and free virus elution (FVE) protocol before nucleic acid extraction, reduced the proportion of false positives to 0% and 19%, but increased the proportion of false negatives to 40% and 73%. More efforts are thus still needed to improve performance of VL assays on DBS to monitor patients on ART in RLCs and allow timely switch to more costly second or third line ART regimes. PMID- 29038003 TI - Hemin supports the survival of photoreceptors injured by N-Methyl-N-nitrosourea: The contributory role of neuroglobin in photoreceptor degeneration. AB - Retina is a critical component of the central nerve system that is responsible for the conversion of light stimulus into electrical spikes. Retinitis pigmentosa (RP) comprises a heterogeneous group of inherited retinal dystrophies leading to blindness. We examined retinal neuroglobin (Ngb) expression in a pharmacologically induced RP animal model, the N-Methyl-N-nitrosourea (MNU) administered mice. The retinal Ngb expression in MNU administered mice attenuated following a time dependent manner, suggesting Ngb was involved in the photoreceptor degeneration. Conversely, the intravenous delivery of Hemin, a Ngb up-regulator, enhanced the Ngb expressions in the retinas of MNU administered mice. Optokinetic behavioral tests and Electroretinogram (ERG) examination suggested that the Hemin treatment could improve the visual function of MNU administered mice. The retinal morphology of the Hemin treated group was much more intact than the MNU group as evidenced by retinal sections and optical coherence tomography (OCT) examinations. Moreover, immunostaining experiments showed the cone photoreceptors in the MNU administered mice were also rescued by Hemin treatment. Furthermore, mechanism studies suggested the Hemin treatment not only alleviated the oxidative stress, but also rectified the apoptotic changes in the retinas of MNU administered mice. In conclusion, the intraperitoneally delivery of Hemin can enhance the Ngb expressions in the MNU administered retinas, thereby ameliorating the photoreceptor degeneration and associated visual impairments. These findings would shed light on the opportunity to develop Ngb into a therapeutic molecular against RP. PMID- 29038004 TI - Flavonoid-rich ethanol extract from the leaves of Diospyros kaki attenuates cognitive deficits, amyloid-beta production, oxidative stress, and neuroinflammation in APP/PS1 transgenic mice. AB - Amyloid-beta peptide (Abeta) initiates a cascade of pathological events, including activation of microglial cells, oxidative stress, and inflammation, leading to neuronal death and the typical pathological changes in Alzheimer's disease (AD). Flavonoids have been reported to exert neuroprotective activities, not only through their generally accepted antioxidant effects, but also through their ability to protect against neurotoxin-induced injury. Flavonoids reduce Abeta production, inhibit neuroinflammation, increase cerebrovascular function, and improve cognitive performance. Here, we analyzed the effects of a flavonoid rich ethanol extract from the leaves of Diospyros kaki (FLDK) in APP/PS1 transgenic mice. We found that oral treatment with FLDK reversed learning and memory impairment, reduced Abeta burden and expression of beta-site amyloid precursor protein cleavage enzyme 1 (BACE1), and decreased microglial activation in senile plaques. FLDK restored antioxidant enzyme activities, as well as reduced the lipid peroxidation product, malondialdehyde, and inflammatory mediators. These results demonstrate that FLDK alleviates cognitive decline and reduces Abeta burden, microglial activation, oxidative stress, and inflammation responses. Thus, FLDK treatment may be a potential therapeutic strategy for preventing and treating AD, at least in part via its anti-oxidant and anti inflammatory biological activities and its effect on the Abeta producing enzyme BACE1. PMID- 29038005 TI - Prednisone alleviates demyelination through regulation of the NLRP3 inflammasome in a C57BL/6 mouse model of cuprizone-induced demyelination. AB - Myelin abnormalities, oligodendrocyte damage, and concomitant glia activation are common in demyelinating diseases of the central nervous system (CNS). Increasing evidence has demonstrated that the inflammatory response triggers demyelination and gliosis in demyelinating disorders. Numerous clinical interventions, including those used to treat multiple sclerosis (MS), have confirmed prednisone (PDN) as a powerful anti-inflammatory drug that reduces the inflammatory response and promotes tissue repair in multiple inflammation sites. However, the underlying mechanism of PDN in ameliorating myelin damage is not well understood. In our study, a cuprizone (CPZ)-induced demyelinated mouse model was used to explore the mechanism of the protection provided by PDN. Open-field tests showed that CPZ-treated mice exhibited significantly increased anxiety and decreased exploration. However, PDN improved emotional behavior, as evidenced by an increase in the total distance traveled, and central distance traveled as well as the mean amount of time spent in the central area. CPZ-induced demyelination was observed to be alleviated in PDN-treated mice based on luxol fast blue (LFB) staining and myelin basic protein (MBP) expression analyses. In addition, PDN reduced astrocyte and microglia activation in the corpus callosum. Furthermore, we demonstrated that PDN inhibited the Nod-like receptor pyrin domain containing 3 (NLRP3) inflammasome signaling pathway and related inflammatory cytokines and chemokines, including TNF-alpha, CCL8, CXCL10 and CXCL16. PDN also reduced the serum corticosterone levels in the CPZ-treated mice. Taken together, these results suggest that inhibition of the NLRP3 signaling pathway may be a novel mechanism by which PDN exerts its protective actions in demyelinating diseases. PMID- 29038006 TI - Role of CA1 GABAA and GABAB receptors on learning deficit induced by D-AP5 in passive avoidance step-through task. AB - To investigate the interaction between hippocampal gamma-aminobutyric acid GABAA receptor (GABAAR) or GABAB receptor (GABABR) and N-methyl-D-aspartate receptor (NMDAR) in the acquisition of passive avoidance memory in rats, we used GABAA or GABAB agents, D-AP5 (as a NMDAR antagonist), and a combination of the mentioned drugs in a step-through task. All agents were microinjected into the intra-CA1 regions at a volume of 1 ul/rat, prior to training. GABAAR agonist muscimol (0.2 ug/rat), selective GABABR agonist baclofen (0.5 ug/rat) or NMDAR antagonist D-AP5 (0.25 ug/rat) decreased step-through latency, indicating a memory retention impairment. Neither GABAAR antagonist bicuculline (0.0625-0.25 ug/rat) nor GABABR antagonist phaclofen (0.1-0.5 ug/rat) altered memory retrieval by itself. Moreover, the lower dose of muscimol (0.05 ug/rat) decreased D-AP5 (0.125 ug/rat) response on memory acquisition, but bicuculline did not alter the D-AP5 response. Furthermore, baclofen and phaclofen at the dose of 0.1 ug/rat potentiated D-AP5 response at the doses of 0.0625 and 0.125 ug/rat, but abolished memory impairment induced by D-AP5 at the higher dose (0.25 ug/rat). The results suggest that the microinjection of GABAA and GABAB agents into the CA1 region differently affects memory acquisition deficit induced by D-AP5. The activation of GABAARs increased the impairment effect of D-AP5 on passive avoidance memory, but their blockade did not have an effect. Also, the activation or blockade of GABABRs induced a similar and dual effect. PMID- 29038007 TI - Baicalin and ginsenoside Rb1 promote the proliferation and differentiation of neural stem cells in Alzheimer's disease model rats. AB - BACKGROUND: This study aimed to explore the effects of ginsenoside Rb1 and baicalin on the proliferation and differentiation of neural stem cells (NSC) in Alzheimer's disease model rats. METHOD: The healthy Sprague Dawley male rats were randomly divided into 4 groups: control group, model group, ginsenoside Rb1 group and baicalin group. Besides, the animal model of dementia was induced by the injection of Abeta1-40. 2 weeks later, the rats in the baicalin and ginsenoside Rb1 groups were injected with baicalin and ginsenoside Rb1, respectively. The contents, expression sites of Nestin, GFAP and NSE and the percentage of viable cells were detected by immunohistochemistry. In addition, the expression levels of Nestin, GFAP and NSE in hippocampus of rats were detected by western-blot and metrology analysis was performed using quantity. RESULTS: Injection of Abeta1-40 significantly reduced the number of neuronal cells (p < .05). In addition, compared with the control group, the percentages of positive cells of NSCs, astrocytes and neuronal were increased. Besides, compared with the model group, the percentage of positive neural cells was improved by ginsenoside Rb1 (p < .05), and the percentages of astrocytes and neuronal were increased by ginsenoside Rb1 and baicalin (p < .05). Moreover, the expressions of Nestin and NSE were enhanced by ginsenoside Rb1 and baicalin (p < .05), while the GFAP level was only affected by ginsenoside Rb1 (p < .05) when compared with the model group. CONCLUSION: Ginsenoside Rb1 and baicalin might promote the proliferation and differentiation of endogenous NSCs in AD rat model. PMID- 29038008 TI - Fibrinogen cleavage products and Toll-like receptor 4 promote the generation of programmed cell death 1 ligand 2-positive dendritic cells in allergic asthma. AB - BACKGROUND: Inhaled protease allergens preferentially trigger TH2-mediated inflammation in allergic asthma. The role of dendritic cells (DCs) on induction of TH2 cell responses in allergic asthma has been well documented; however, the mechanism by which protease allergens induce TH2-favorable DCs in the airway remains unclear. OBJECTIVE: We sought to determine a subset of DCs responsible for TH2 cell responses in allergic asthma and the mechanism by which protease allergens induce the DC subset in the airway. METHODS: Mice were challenged intranasally with protease allergens or fibrinogen cleavage products (FCPs) to induce allergic airway inflammation. DCs isolated from mediastinal lymph nodes were analyzed for surface phenotype and T-cell stimulatory function. Anti-Thy1.2 and Mas-TRECK mice were used to deplete innate lymphoid cells and mast cells, respectively. Adoptive cell transfer, bone marrow DC culture, anti-IL-13, and Toll-like receptor (TLR) 4-deficient mice were used for further mechanistic studies. RESULTS: Protease allergens induced a remarkable accumulation of TH2 favorable programmed cell death 1 ligand 2 (PD-L2)+ DCs in mediastinal lymph nodes, which was significantly abolished in mice depleted of mast cells and, to a lesser extent, innate lymphoid cells. Mechanistically, FCPs generated by protease allergens triggered IL-13 production from wild-type mast cells but not from TLR4 deficient mast cells, which resulted in an increase in the number of PD-L2+ DCs. Intranasal administration of FCPs induced an increase in numbers of PD-L2+ DCs in the airway, which was significantly abolished in TLR4- and mast cell-deficient mice. Injection of IL-13 restored the PD-L2+ DC population in mice lacking mast cells. CONCLUSION: Our findings unveil the "protease-FCP-TLR4-mast cell-IL-13" axis as a molecular mechanism for generation of TH2-favorable PD-L2+ DCs in allergic asthma and suggest that targeting the PD-L2+ DC pathway might be effective in suppressing allergic T-cell responses in the airway. PMID- 29038009 TI - Advances in mechanisms of allergic disease in 2016. AB - This review highlights advances in mechanisms of allergic disease, particularly type 2 innate lymphoid cells; TH2 lymphocytes; eicosanoid regulation of inflammation; extracellular vesicles in allergic responses; IL-33; microbiome properties, especially as they relate to mucosal barrier function; and a series of findings concerning the allergic inflammatory cells eosinophils, basophils, and mast cells. During the last year, mechanistic advances occurred in understanding type 2 innate lymphoid cells, particularly related to their response to ozone, involvement with experimental food allergy responses, and regulation by IL-33. Novel ways of regulating TH2 cells through epigenetic regulation of GATA-3 through sirtuin-1, a class III histone deacetylase, were published. The understanding of eicosanoid regulation of inflammation increased and focused on additional properties of phospholipase A2 and the role of prostaglandin D2 and its receptors and inhibitory prostaglandin E2 pathways. Mechanisms through which extracellular vesicles are released and contribute to allergic responses were reported. There was a deeper appreciation of mucosal barrier function, the epithelial alarmin IL-33, and the microbiome. Finally, there were advances concerning allergic inflammatory cells (mast cells, basophils, and eosinophils) that will undoubtedly have an effect on disease understanding and new therapeutic strategies. PMID- 29038010 TI - Peripheral Visual Fields in ABCA4 Stargardt Disease and Correlation With Disease Extent on Ultra-widefield Fundus Autofluorescence. AB - PURPOSE: To evaluate the disease extent on ultra-widefield fundus autofluorescence (UWF-FAF) in patients with ABCA4 Stargardt disease (STGD) and correlate these data with functional outcome measures. DESIGN: Retrospective cross-sectional study. METHODS: Setting: Kellogg Eye Center, University of Michigan. STUDY POPULATION: Sixty-five patients with clinical diagnosis and proven pathogenic variants in the ABCA4 gene. Observational Procedures: The UWF FAF images were obtained using Optos (200 degrees) and classified into 3 types. Functional testing included kinetic widefield perimetry, full-field electroretinogram (ffERG), and visual acuity (VA). All results were evaluated with respect to UWF-FAF classification. MAIN OUTCOME MEASURES: Classification of UWF-FAF; area comprising the I4e, III4e, and IV4e isopters; ffERG patterns; and VA. RESULTS: For UWF-FAF, 27 subjects (41.5%) were classified as type I, 17 (26.2%) as type II, and 21 (32.4%) as type III. The area of each isopter correlated inversely with the extent of the disease and all isopters were able to detect differences among UWF-FAF types (IV4e, P = .0013; III4e, P = .0003; I4e, P < .0001 = 3.93e-8). ffERG patterns and VA were also different among the 3 UWF-FAF types (P < .001 = 6.61e-6 and P < .001 = 7.3e-5, respectively). CONCLUSION: Patients with widespread disease presented with more constriction of peripheral visual fields and had more dysfunction on ffERG and worse VA compared to patients with disease confined to the macula. UWF-FAF images may provide information for estimating peripheral and central visual function in STGD. PMID- 29038011 TI - Macular Fluid Reduces Reproducibility of Choroidal Thickness Measurements on Enhanced Depth Optical Coherence Tomography. AB - PURPOSE: To determine if different types of retinal fluid in the central macula affect the reproducibility of choroidal thickness (CT) measurements on enhanced depth imaging optical coherence tomography (EDI-OCT). DESIGN: Retrospective reliability analysis. METHODS: EDI-OCT images were obtained and the choroidal scleral junction was analyzed through semiautomated segmentation. CT was measured at the fovea and averaged across the central 3-mm horizontal segment. Demographic data, central macular thickness, and type of fluid present were recorded. Intragrader and intergrader repeatability were assessed using the intraclass correlation coefficient (ICC) and coefficient of repeatability (CR). RESULTS: Of 124 eyes analyzed, 60 (48.4%) had diabetic macular edema, 32 (25.8%) had neovascular age-related macular degeneration, and 32 (25.8%) had other causes of fluid. Intergrader ICC (CR) was 0.95 (74.1 MUm) and 0.96 (63.9 MUm) for subfoveal and average CT, respectively. CR was similar across various causes of retinal fluid, but was worst for subretinal fluid compared to intraretinal or sub-retinal pigment epithelial fluid. CR also worsened with increasing choroidal thickness, but was not affected by retinal thickness. Intragrader repeatability was generally greater than intergrader values, and followed the same trend. CONCLUSIONS: The presence of macular fluid reduces CT measurement reproducibility, particularly in eyes with subretinal fluid and greater choroidal thickness. A difference of 74.1 MUm in subfoveal CT or 63.9 MUm in average CT may be necessary to detect true clinical change in eyes with macular fluid. PMID- 29038013 TI - A transcriptomics assessment of oxygen-temperature interactions reveals novel candidate genes underlying variation in thermal tolerance and survival. AB - While single stress responses are fairly well researched, multiple, interactive stress responses are not-despite the obvious importance thereof. Here, using D. melanogaster, we investigated the effects of simultaneous exposures to low O2 (hypoxia) and varying thermal conditions on mortality rates, estimates of thermal tolerance and the transcriptome. We used combinations of 21 (normoxia), 10 or 5kPa O2 with control (23 degrees C), cold (4 degrees C) or hot (31 degrees C) temperature exposures before assaying chill coma recovery time (CCRT) and heat knock down time (HKDT) as measures of cold and heat tolerance respectively. We found that mortality was significantly affected by temperature, oxygen partial pressure (PO2) and the interaction between the two. Cold treatments resulted in low mortality (<5%), regardless of PO2 treatment; while hot treatments resulted in higher mortality (~20%), especially at 5kPa O2 which was lethal for most flies (~80%). Both CCRT and HKDT were significantly affected by temperature, but not PO2, of the treatments, and the interaction of temperature and PO2 was non significant. Hot treatments led to significantly longer CCRT, and shorter HKDT in comparison to cold treatments. Global gene expression profiling provided the first transcriptome level response to the combined stress of PO2 and temperature, showing that stressful treatments resulted in higher mortality and induced transcripts that were associated with protein kinases, catabolic processes (proteases, hydrolases, peptidases) and membrane function. Several genes and pathways that may be responsible for the protective effects of combined PO2 and cold treatments were identified. We found that urate oxidase was upregulated in all three cold treatments, regardless of the PO2. Small heat shock proteins Hsp22 and Hsp23 were upregulated after both 10 and 21kPa O2-hot treatments. Collectively, the data from PO2-hot treatments suggests that hypoxia does exacerbate heat stress, through an as yet unidentified mechanism. Hsp70B and an unannotated transcript (CG6733) were significantly differentially expressed after 5kPa O2-cold and 10kPa O2-hot treatments relative to their controls. Downregulation of these transcripts was correlated with reduced thermal tolerance (longer CCRT and shorter HKDT), suggesting that these genes may be important candidates for future research. PMID- 29038014 TI - Effects of lignins as diet components on the physiological activities of a lower termite, Coptotermes formosanus Shiraki. AB - We investigated the effects of lignins as diet components on the physiological activities of a lower termite, Coptotermes formosanus Shiraki. Artificial diets composed of polysaccharides with and without purified lignins (milled-wood lignins) from Japanese cedar (softwood), Japanese beech (hardwood), and rice (grass), were fed to C. formosanus workers. The survival and body mass of the workers as well as the presence of three symbiotic protists in the hindguts of the workers were then periodically examined. The survival rates of workers fed on diets containing lignins were, regardless of the lignocellulose diet sources, significantly higher than those of workers fed on only polysaccharides. In addition, it was clearly observed that all the tested lignins have positive effects on the maintenance of two major protists in the hindguts of C. formosanus workers, i.e., Pseudotrichonympha grassii and Holomastigotoides hartmanni. Overall, our data suggest that the presence of lignin is crucial to maintaining the physiological activities of C. formosanus workers during their lignocellulose decomposition. Our data also suggested that some components, possibly minerals and/or non-structural carbohydrates, in grass lignocellulose negatively affect the survival of C. formosanus workers as well as the present rate of the symbiotic protists in their hindguts. PMID- 29038012 TI - The structure of the actin-smooth muscle myosin motor domain complex in the rigor state. AB - Myosin-based motility utilizes catalysis of ATP to drive the relative sliding of F-actin and myosin. The earliest detailed model based on cryo-electron microscopy (cryoEM) and X-ray crystallography postulated that higher actin affinity and lever arm movement were coupled to closure of a feature of the myosin head dubbed the actin-binding cleft. Several studies since then using crystallography of myosin-V and cryoEM structures of F-actin bound myosin-I, -II and -V have provided details of this model. The smooth muscle myosin II interaction with F actin may differ from those for striated and non-muscle myosin II due in part to different lengths of important surface loops. Here we report a ~6 A resolution reconstruction of F-actin decorated with the nucleotide-free recombinant smooth muscle myosin-II motor domain (MD) from images recorded using a direct electron detector. Resolution is highest for F-actin and the actin-myosin interface (3.5-4 A) and lowest (~6-7 A) for those parts of the MD at the highest radius. Atomic models built into the F-actin density are quite comparable to those previously reported for rabbit muscle actin and show density from the bound ADP. The atomic model of the MD, is quite similar to a recently published structure of vertebrate non-muscle myosin II bound to F-actin and a crystal structure of nucleotide free myosin-V. Larger differences are observed when compared to the cryoEM structure of F-actin decorated with rabbit skeletal muscle myosin subfragment 1. The differences suggest less closure of the 50 kDa domain in the actin bound skeletal muscle myosin structure. PMID- 29038015 TI - Why is there no impact of the host species on the cold tolerance of a generalist parasitoid? AB - For generalist parasitoids such as those belonging to the Genus Aphidius, the choice of host species can have profound implications for the emerging parasitoid. Host species is known to affect a variety of life history traits. However, the impact of the host on thermal tolerance has never been studied. Physiological thermal tolerance, enabling survival at unfavourable temperatures, is not a fixed trait and may be influenced by a number of external factors including characteristics of the stress, of the individual exposed to the stress, and of the biological and physical environment. As such, the choice of host species is likely to also have implications for the thermal tolerance of the emerging parasitoid. The current study aimed to investigate the effect of cereal aphid host species (Sitobion avenae, Rhopalosiphum padi and Metopolophium dirhodum) on adult thermal tolerance, in addition to sex and size, of the aphid parasitoids Aphidius avenae, Aphidius matricariae and Aphidius rhopalosiphi. Results revealed no effect of host species on the cold tolerance of the emerging parasitoid, as determined by CTmin and Chill Coma, for all parasitoid species. Host species significantly affected the size of the emerging parasitoid for A. rhopalosiphi only, with individuals emerging from R. padi being significantly larger than those emerging from S. avenae, although this did not correspond to a difference in thermal tolerance. Furthermore, a significant difference in the size of male and female parasitoids was observed for A. avenae and A. matricariae, although, once again this did not correspond to a difference in cold tolerance. It is suggested that potential behavioural thermoregulation via host manipulation may act to influence the thermal environment experienced by the wasp and thus wasp thermal tolerance and, in doing so, may negate physiological thermal tolerance or any impact of the aphid host. PMID- 29038016 TI - Age, sex, mating status, but not social isolation interact to shape basal immunity in a group-living insect. AB - Immunity is a crucial but costly trait. Individuals should therefore adjust their investment into immunity to their condition and infection risks, which are often determined by their age, sex, mating status and social environment. However, whether and how these four key factors can interact to shape basal immunity remains poorly understood. Here, we tested the simultaneous effects of these factors on hemocyte concentration and phenoloxidase activity in adults of the European earwig. We found that hemocyte concentration increased with age, and that this increase was stronger in males. We also found an age-dependent increase in phenoloxidase activity in males and virgin females, but not in mated females. However, the two immune parameters were independent of social isolation. Overall, our results reveal that a complex interplay between age, sex and mating status determines basal immunity and stress the importance of interactions in our understanding of immune investment. PMID- 29038018 TI - Undervalued and ignored: Are humans poorly adapted to energy-dense foods? AB - In many species the capacity to accurately differentiate the energy density (kcal/g) of foods is critical because it greatly improves efficiency in foraging. In modern humans this ability remains intact and is expressed in a selective preference for types of fruit and vegetables that contain more calories. However, humans evolved consuming these low energy-dense foods (typically < 1.75 kcal/g) and it remains unclear whether they can also discriminate more energy-dense foods that now feature in modern Western diets. In two experiment participants (both N = 40) completed four tasks that assessed the 'value' of different sets of 22 foods that ranged in energy density (0.1 kcal/g-5.3 kcal/g and range 0.1 kcal/g to 6.2 kcal/g in Experiment 1 and 2, respectively). In Experiment 1 three measures (expected fullness, calorie estimation, and food choice), and in foods less than approximately 1.5 kcal/g (typically fruits and vegetables), the relationship between perceived value and energy density is linear. Above this, we observed clear compressive functions, indicating relative and progressive undervaluation of higher energy-dense foods. The fourth task (rated liking) failed to provide evidence for any relationship with energy density. In Experiment 2 the same pattern was replicated in measures of expected fullness, and in two different assessments of subjective calorie content. Consistent with the concept of 'evolutionary discordance,' this work indicates that modern human physiology is poorly adapted to evaluate foods that have a historically unusual (high) energy density. This has implications both for our understanding of how 'modern' energy-dense foods affect choice and energy intake, and for strategies aimed at removing calories from highly energy-rich foods. PMID- 29038017 TI - Fetal growth interacts with multilocus genetic score reflecting dopamine signaling capacity to predict spontaneous sugar intake in children. AB - BACKGROUND: We have shown that intrauterine growth restriction (IUGR) leads to increased preference for palatable foods at different ages in both humans and rodents. In IUGR rodents, altered striatal dopamine signaling associates with a preference for palatable foods. OBJECTIVES: Our aim was to investigate if a multilocus genetic score reflecting dopamine-signaling capacity is differently associated with spontaneous palatable food intake in children according to the fetal growth status. METHODS: 192 four-year old children from a community sample from Montreal and Hamilton, Canada, were classified according to birth weight and administered a snack test meal containing regular as well as palatable foods. Intrauterine growth restriction was based on the birth weight ratio below 0.85; children were genotyped for polymorphisms associated with dopamine (DA) signaling, with the hypofunctional variants (TaqIA-A1 allele, DRD2-141C Ins/Ins, DRD4 7-repeat, DAT1-10-repeat, Met/Met-COMT) receiving the lowest scores, and a composite score was calculated reflecting the total number of the five genotypes. Macronutrient intake during the Snack Test was the outcome. RESULTS: Adjusting for z-score BMI at 48 months and sex, there was a significant interaction of the genetic profile and fetal growth on sugar intake [beta^ = -4.56, p = 0.04], showing a positive association between the genetic score and sugar intake in IUGR children, and no association in non-IUGR children. No significant interactions were seen in other macronutrients. CONCLUSIONS: Variations in a genetic score reflecting DA signaling are associated with differences in sugar intake only in IUGR children, suggesting that DA function is involved in this behavioral feature in these children. This may have important implications for obesity prevention in this population. PMID- 29038019 TI - Establishment of a cell-based wound healing assay for bio-relevant testing of wound therapeutics. AB - INTRODUCTION: Predictive in vitro testing of novel wound therapeutics requires adequate cell-based bio-assays. Such assays represent an integral part during preclinical development as pre-step before entering in vivo studies. Simple "scratch tests" based on defected skin cell monolayers exist, however these can solely be used for testing liquids, as cell monolayer destruction and excessive hydration limit their applicability for (semi-)solid systems like wound dressings. In this context, a cell-based wound healing assay is introduced for rapid and predictive testing of wound therapeutics independent of their physical state in a bio-relevant environment. METHODS: A novel wound healing assay was established for bio-relevant and predictive testing of (semi-) solid wound therapeutics. RESULTS: The assay allows for physiologically relevant hydration of the tested wound therapeutics at the air-liquid interface and their removal without cell monolayer disruption. In a proof-of-concept study, the applicability and discriminative power could be demonstrated by examining unloaded and drug loaded wound dressings with two different established wound healing actives (dexpanthenol and metyrapone) and their effect on skin cell behavior. The influence of the released drug on the cells' healing behavior could successfully be monitored over time. Wound size assessment after 96h resulted in an eight fold smaller wound area for drug treated models compared to the ones treated with unloaded fibers and non-treated wounds. DISCUSSION: This assay provides valuable first insights towards the establishment of a valid screening and evaluation tool for preclinical wound therapeutic development from liquid to (semi-)solid systems to improve predictability in a simple, yet standardized way. PMID- 29038020 TI - The Ca2+/CaMKK2 axis mediates the telbivudine induced upregulation of creatine kinase: Implications for mechanism of antiviral nucleoside analogs' side effect. AB - Telbivudine (LdT), a widely prescribed anti-hepatitis B virus (HBV) drug for the treatment of chronic Hepatitis B (CHB), causes adverse reactions ranging from creatine kinase (CK) elevation to myopathy. The purpose of this study was to explore the mechanism(s) of LdT induced CK elevation. The effects of LdT on mitochondrial morphology and proteins (TK2 and beta-actin), oxidative stress, intracellular Ca2+ levels, Ca2+-related signaling pathway (CaMKK2/AMPK), and Ca2+ related biomarkers such as superoxide dismutase (SOD) and malondialdehyde (MDA) were assessed in human skeletal muscle cells (HSKMCs). The results showed that LdT induced a dose-dependent increase in CK activity in HSKMCs, without affecting mitochondrial morphology, and TK2 and beta-actin protein levels, following 72 h of treatment. In addition, LdT increased Ca2+ production, ROS generation, MDA and lipid peroxide (LPO) levels, and activated the CaMKK2/AMPK signaling pathway. Moreover, these effects were attenuated by the BAPIA-AM (the calcium chelator). We also confirmed the presence of relevant markers (MDA, LPO, and SOD) in serum from CHB patients after LdT treatment, and found that CK was positively correlated with MDA and LPO, and negatively associated with SOD. These findings indicate that LdT induces CK elevation and oxidative stress associated with imbalance of intracellular Ca2+ in HSKMCs, suggesting that Ca2+/CaMKK2 axis imbalance may underlie human LdT-induced CK elevation. The present findings provide a solid basis for assessing the mechanism of drug-induced CK elevation, which can help develop new tools for the prevention and treatment of diseases associated with drug-induced CK elevation. PMID- 29038021 TI - Detailed characterization of Synechocystis PCC 6803 ferredoxin:NADP+ oxidoreductase interaction with model membranes. AB - Direct interaction of ferredoxin:NADP+ oxidoreductase (FNR) with thylakoid membranes was postulated as a part of the cyclic electron flow mechanism. In vitro binding of FNR to digalactosyldiacylglycerol and monogalactosyldiacylglycerol membranes was also shown. In this paper we deal with the latter interaction in more detail describing the effect for two FNR forms of Synechocystis PCC 6803. The so-called short FNR (sFNR) is homologous to FNR from higher plant chloroplasts. The long FNR (lFNR) form contains an additional domain, responsible for the interaction with phycobilisomes. We compare the binding of both sFNR and lFNR forms to native and non-native lipids. We also include factors which could modulate this process: pH change, temperature change, presence of ferredoxin, NADP+ and NADPH and heavy metals. For the lFNR, we also include phycobilisomes as a modulating factor. The membrane binding is generally faster at lower pH. The sFNR was binding faster than lFNR. Ferredoxin isoforms with higher midpoint potential, as well as NADPH and NADP+, weakened the binding. Charged lipids and high phosphate promoted the binding. Heavy metal ions decreased the rate of membrane binding only when FNR was preincubated with them before injection beneath the monolayer. FNR binding was limited to surface lipid groups and did not influence hydrophobic chain packing. Taken together, FNR interaction with lipids appears to be non-specific, with an electrostatic component. This suggests that the direct FNR interaction with lipids is most likely not a factor in directing electron transfer, but should be taken into account during in vitro studies. PMID- 29038022 TI - A conjugate of decyltriphenylphosphonium with plastoquinone can carry cyclic adenosine monophosphate, but not cyclic guanosine monophosphate, across artificial and natural membranes. AB - The present study demonstrated for the first time the interaction between adenosine 3',5'-cyclic monophosphate (cAMP), one of the most important signaling compounds in living organisms, and the mitochondria-targeted antioxidant plastoquinonyl-decyltriphenylphosphonium (SkQ1). The data obtained on model liquid membranes and human platelets revealed the ability of SkQ1 to selectively transport cAMP, but not guanosine 3',5'-cyclic monophosphate (cGMP), across both artificial and natural membranes. In particular, SkQ1 elicited translocation of cAMP from the source to the receiving phase of a Pressman-type cell, while showing low activity with cGMP. Importantly, only conjugate with plastoquinone, but not dodecyl-triphenylphosphonium, was effective in carrying cAMP. In human platelets, SkQ1 also appeared to serve as a carrier of cAMP, but not cGMP, from outside to inside the cell, as measured by phosphorylation of the vasodilator stimulated phosphoprotein. The SkQ1-induced transfer of cAMP across the plasma membrane found here can be tentatively suggested to interfere with cAMP signaling pathways in living cells. PMID- 29038023 TI - The impact of length variations in the L2 loop on the structure and thermal stability of non-specific porins: The case of OmpCs from the Yersinia pseudotuberculosis complex. AB - Porins are integral proteins of the outer membranes of gram-negative bacteria. In membranes, they exist as homotrimers and the L2 loops contribute to their stability. Comparison of OmpC porins of the Yersinia pseudotuberculosis complex with other enterobacterial porins demonstrated L2 loop length diversity, which is caused by varying numbers of dipeptide/tripeptide repeats. The OmpC porins are highly homologous to each other, and they can be subdivided into five isoforms based on their L2 loop structure. Optical spectroscopy and SDS-PAGE experiments revealed that particularities of the L2 loops affected the structure and thermal stability of the porins. Thermal denaturation studies showed that porins with shorter loops, compared to porins with longer loops, had more stable tertiary and less stable secondary and quaternary structures. According to our comparative modeling results, the L2 loops differ in their structure by adopting different spatial positions and forming different polar bonds with a neighbor monomer. The replacement of asparagine with arginine at the C-terminus of the L2 loop shifts the loop upwards and causes the loss of contacts with the arginine clusters within the pores. The increase in the length of these loops ensures that they shift down toward the pore and restore their contacts with arginines on the channel wall, as is the case in classical nonspecific porins. Despite the fact that the surface charge density varies considerably among the OmpC porins, the L2 loops form a typical negatively charged region in the center of the trimer. PMID- 29038024 TI - Structural insights of a self-assembling 9-residue peptide from the C-terminal tail of the SARS corona virus E-protein in DPC and SDS micelles: A combined high and low resolution spectroscopic study. AB - In recent years, several studies based on the interaction of self-assembling short peptides derived from viroporins with model membranes, have improved our understanding of the molecular mechanism of corona virus (CoV) infection under physiological conditions. In this study, we have characterized the mechanism of membrane interaction of a short, 9-residue peptide TK9 (T55VYVYSRVK63) that had been derived from the carboxyl terminal of the Severe Acute Respiratory Syndrome (SARS) corona virus (SARS CoV) envelope (E) protein. The peptide has been studied for its physical changes in the presence of both zwitterionic DPC and negatively charged SDS model membrane micelles, respectively, with the help of a battery of biophysical techniques including two-dimensional solution state NMR spectroscopy. Interestingly, in both micellar environments, TK9 adopted an alpha helical conformation; however, the helical propensities were much higher in the case of DPC compared to those of SDS micelle, suggesting that TK9 has more specificity towards eukaryotic cell membrane than the bacterial cell membrane. The orientation of the peptide TK9 also varies in the different micellar environments. The peptide's affinity was further manifested by its pronounced membrane disruption ability towards the mammalian compared to the bacterial membrane mimic. Collectively, the in-depth structural information on the interaction of TK9 with different membrane environments explains the host specificity and membrane orientation owing to subsequent membrane disruption implicated in the viral pathogenesis. PMID- 29038025 TI - Assessment of the cervical spine denticulate ligament using MRI volumetric sequence: Comparison between 1.5 Tesla and 3.0 Tesla. AB - BACKGROUND: Denticulate ligaments (DLs) are pial extensions on each side of the spinal cord, comprising about 20 to 21 pairs of fibrous structures connecting the dura mater to the spinal cord. These ligaments are significant anatomical landmarks in the surgical approach to intradural structures. To our knowledge, there is no previous study on the detection of DLs using MRI. METHODS: After IRB approval, we retrospectively evaluated 116 consecutive MRI scans of the cervical spine, using the volumetric sequence 3D COSMIC, 65 and 51 studies with 1.5T and 3.0T respectively. We did not include trauma and tumor cases. Two independent radiologists assessed the detection of cervical spine DLs independently and blinded for each cervical vertebral level. We compared the frequency of detection of these ligaments in 1.5 Tesla and 3.0 Tesla MRI using Fisher exact test considering P<0.05 as significant. We evaluated interobserver agreement with Kappa coefficient. RESULTS: We observed high detection frequency of the cervical spine DLs using both 1.5T (70 to 91%) and 3.0T (68 to 98%). We found no statistically significant difference in the detection frequency of ligaments between the 1.5T and 3.0T MRI in all vertebral levels. Using 3.0T, radiologists identified ligaments better in higher vertebral levels than for lower cervical levels (P=0.0003). Interobserver agreement on the identification of DL was poor both for 1.5T (k=0.3744; CI 95% 0.28-0.46) and 3.0T (k=0.3044; CI 95% 0.18-0.42) MRI. CONCLUSIONS: Radiologists identified most of the cervical DLs using volumetric MRI acquisition. Our results suggest 1.5T and 3.0T MRI performed similarly in the detection of DLs. PMID- 29038026 TI - Proteodynamics in aging human T cells - The need for its comprehensive study to understand the fine regulation of T lymphocyte functions. AB - Cellular life depends mostly on the creation, modification, interactions and destruction of proteins. This is true for every cell, including human T lymphocytes. One way these cells can ascertain the fidelity and at least partial functionality of their proteomes under constant attack of irreversible modulations (e.g., ROS- or glycation-dependent) is proteostasis. However, with cellular aging proteostasis progressively fails and proteostenosis (decreased amounts and functionalities of remaining proteins) occurs. There are several mechanisms involved in the modulation and protection of the proteome in the T cells which include mainly multiple layers of vesicle-bound and cytoplasmic proteases (e.g., lysosomal and proteasomal ones) acting mostly by degradation of obsolete and age-modified proteins. Recently it was shown that another not yet so widely known system consisting of obligatorily calcium-dependent cysteine proteases, the calpains and their inhibitor, the calpastatin serves in T cells as a dual switch, either activating or inactivating different proteins depending on intracellular conditions. Thus the proteolytic elimination of altered proteins as well as modulation of activity of those remaining leads to dynamic change of proteome composition and function (proteodynamics) in aging lymphocytes, so far in an almost unknown way. Aging T cell proteodynamics requires further comprehensive analysis of the resulting lysoproteomic patterns and their changes. PMID- 29038027 TI - Tumor necrosis factor-alpha and soluble TNF-alpha receptor responses in young vs. middle-aged males following eccentric exercise. AB - BACKGROUND: Tumor necrosis factor-alpha (TNF-alpha) has been shown to be implicated in both muscle regeneration and muscle wasting. However, it remains unclear whether TNF-alpha is responsible for the age-related losses in muscle size and function. Also, due to the high clearance rate of TNF-alpha from circulation, analyzing the circulating levels of soluble TNF-alpha receptors 1 and 2 (STNFR1 and STNFR2) may provide a better indication of inflammatory events. The aim of this study was to examine changes in circulating concentrations of TNF alpha, STNFR1, and STNFR2 following acute eccentric exercise in young (YA) and middle-aged (MA) men. METHODS AND MATERIALS: Nine YA (N=9, 21.8+/-2.2y, 179.5+/ 4.9cm, 91.2+/-12.2kg, 21.8+/-4.3% body fat) and ten MA (N=10, 47.0+/-4.4y, 176.8+/-7.6cm; 96.0+/-21.5kg, 25.4+/-5.3% body fat) men completed an acute muscle damaging protocol (MDP). Blood samples were obtained at baseline (BL), immediately (IP), 30-minute (30P), 60-minute (60P), 120-minute (120P), 24-hour (24H), and 48-hour (48H) post-MDP. Lower body performance was assessed via isokinetic dynamometer at BL, IP, 120P, 24H, and 48H. RESULTS: YA displayed higher values of peak torque (p=0.023) and mean torque (p=0.036) at BL. No significant group differences were observed for markers of muscle damage or TNF alpha. Plasma concentrations of TNF-alpha were unchanged following MDP. STNFR1 concentrations were significantly higher in the YA group compared to MA (p=0.036). Significant time effects were observed for STNFR1 (p<0.001) and STNFR2 (p=0.001). With both groups combined, serum STNFR1 was decreased at 30P (p=0.001), while STNFR2 was decreased at 30P (p=0.008), 60P (p=0.003), and 120P (p=0.002) relative to BL. CONCLUSIONS: The pro-inflammatory response to muscle damage does not appear to decline at middle age when individuals are recreationally trained. However, young men showed significantly higher serum STNFR1 concentrations than middle age men. This may suggest that natural inhibitors of TNF-alpha decline as early as middle age. PMID- 29038028 TI - Adiponectin and sporadic Alzheimer's disease: Clinical and molecular links. AB - Obesity has been consistently associated with Alzheimer's disease (AD) though the exact mechanisms by which it influences cognition are still elusive and subject of current research. Adiponectin, the most abundant adipokine in circulation, is inversely correlated with adipose tissue dysfunction and seems to be a central player in this association. In fact, different signalling pathways are shared by adiponectin and proteins involved in AD pathophysiology and considerable amount of evidence supports its direct and indirect influence on beta-amyloid and tau aggregates formation. In this paper we present a critical review of cellular, animal and clinical studies which have contributed to a more thorough understanding of the extent to which adiponectin influences the risk of developing AD as well as its progression. Finally, the effect of acetylcholinesterase inhibitors on circulating adiponectin levels, possible therapeutic applications and future research strategies are also discussed. PMID- 29038029 TI - Expanding the spectrum of TBL1XR1 deletion: Report of a patient with brain and cardiac malformations. AB - The TBL1XR1 gene product is a nuclear protein ubiquitously produced. The protein is a component of SMRT/N-CoR co-repressor complexes and participates in the molecular switch of specific gene transcription. Deletions of the TBL1XR1 gene have been described in two families to date, both presenting intellectual disability and dysmorphisms. Rare recurrent chromosomal micro-rearrangements, particularly those involving single genes, represent a challenge for clinicians to ensure correlation with phenotype due to the paucity of previously described cases. Here we present a patient harbouring a TBL1XR1 gene deletion detected by chromosome microarray analysis. In addition to intellectual disability, the patient presents dysmorphic features and multiple cardiac malformations, together with brain malformation, thus contributing to the phenotypic characterization of this rare microdeletion and to the TBL1XR1 gene function. PMID- 29038031 TI - The cognitive psychology and neuroscience of naming people. AB - The use of proper names enables us to designate entities, including people, at a very specific level of categorization: the unique entity or the individual. The paper presents a general overview of psychological/cognitive and neuroscientific studies that have compared the production of proper names, in particular people's names, with the production of common nouns during the last thirty years. The search for specific brain correlates of proper naming included single-case and group studies of patients with brain lesions, and studies utilizing functional neuroimaging or brain electrical stimulation with healthy participants. These studies have led neuroscientists to hypothesize that the recall of proper names involves a rather complex network including mainly left frontal and temporal regions. Behavioural evidence supports the view that proper names are more difficult to recall than common names, and scientists have proposed different explanations for this relative difficulty. Finally, several new directions for future research are proposed to improve our understanding of both cognitive processes and their brain correlates involved during proper name recall. PMID- 29038032 TI - Feasibility of sacrocolpopexy by outpatient laparoscopic surgery. AB - INTRODUCTION: Sacrocolpopexy (SP) is a common intervention that is most often performed by laparoscopy. This intervention usually involves standard hospitalization. Evaluation of whether this procedure can be safely carried out by outpatient hospitalization (OH) is of considerable relevance. The aim of our study was hence to evaluate the feasibility of SP by OH. PATIENTS AND METHODS: This was an observational multicenter study that included women who underwent SP by OH. The main assessment criteria were the success rate of OH and the rate of rehospitalisation in the month following the intervention. The secondary assessment criteria were the rate of complications in the month following the surgery, the level of patient satisfaction evaluated by a set of straightforward questions and two validated questionnaires (the Patient Global Impression of Improvement [PGI-I] and the Core questionnaire for the assessment of Patient Satisfaction with general Day care [COPS-D]). RESULTS: There were 55 women operated on by OH. The success rate for the OH was 49/55 (89.1% (80.7-97.3%)). Of the 31/55 women (56.4%) who answered the PGI-I questionnaire, 27/31 (87.1%) stated that the intervention improved their condition. Of the 30/55 women who answered the COPS-D questionnaire, 26/30 (86.7%) women were "satisfied" or "very satisfied" with the conditions for their discharge from the OH. CONCLUSION: The success rate for SP by OH was high in this study, with a very substantial level of patient satisfaction. These findings nonetheless ought to be confirmed with series involving higher numbers of women. PMID- 29038033 TI - Cervical preparation prior to surgical abortion in real-life conditions and factors driving the prescription: A national observational study. AB - INTRODUCTION: Few data exist to document the real-life practices regarding surgical abortion for first trimester abortion, in particular regarding the cervical preparation. Using a large national sample of French hospitals practicing surgical abortion, we explore actual practices and described drugs used for cervical preparation and factors that influence the prescription. METHODS: From December 2013 to July 2014, a longitudinal, prospective, multicenter, non-interventional study was undertaken with the main objective of assessing in real-life conditions the modalities of cervical preparation prior surgical abortion in women with less than 14 weeks of amenorrhea. RESULTS: A total of 542 patients agreed to participate and were included by 36 French private or public hospitals. Among 36 active centers, 31 (86.1%) implemented cervical preparation prior surgical abortion, in line with French and international clinical guidelines. For the 510 patients who underwent surgical abortions, the most frequent prescribed treatment was misoprostol only (224/510, 43.9% of patients), following by mifepristone only (167/510, 32.8%) and a combination of misoprostol and mifepristone (99/510, 19.4%). Finally, four factors were identified as independent contributor to guide the treatment prescribed for cervical preparation: woman work situation, gestational age intensity of center's activity regarding the number of abortions yearly and mode of anesthesia. CONCLUSIONS: Our study showed an almost systematic implementation of cervical preparation before surgical abortion in France. Misoprostol only was the most commonly prescribed treatment for the cervix preparation, followed by mifepristone only. Several factors may have a significant influence on the type of cervical preparation chosen by physicians. PMID- 29038034 TI - Environmental characteristics of early childhood education and care centres and young children's weight status: A systematic review. AB - The aim of this systematic review was to summarize ECEC environmental correlates of weight status in children under the age of 6years. Six databases (PubMed, PsycINFO, CINAHL, SPORTDiscus, Scopus, and Web of Science) were searched until March 2017. Observational studies examining the relationship between ECEC environmental characteristics and weight status in children aged 0-6years were included. Data was extracted using a predesigned form. Eight studies, representing 4862 children, met the inclusion criteria. Twenty-two environmental characteristics were identified and classified into four domains (physical, political, economic, and sociocultural); of these, six correlates were found. 'Active environment' 'sedentary opportunities', 'active play time', 'high sugar and high fat served', 'educators' weight' and 'educators' habitual physical activity level' were associated with weight status in young children. However, for most environmental characteristics examined, strong evidence is not available yet, due to variations across studies on the measures of environmental characteristics and analytical methodologies. Stronger empirical evidence in greater quantity is needed. Future studies in this area are recommended to investigate the environmental influence using an ecological approach and to examine the potential mediators, with a focus on the settings of family-based centres and samples representing toddlers and/or infants. PMID- 29038030 TI - Dynamic functional connectivity impairments in early schizophrenia and clinical high-risk for psychosis. AB - Individuals at clinical high-risk (CHR) for psychosis are characterized by attenuated psychotic symptoms. Only a minority of CHR individuals convert to full blown psychosis. Therefore, there is a strong interest in identifying neurobiological abnormalities underlying the psychosis risk syndrome. Dynamic functional connectivity (DFC) captures time-varying connectivity over short time scales, and has the potential to reveal complex brain functional organization. Based on resting-state functional magnetic resonance imaging (fMRI) data from 70 healthy controls (HCs), 53 CHR individuals, and 58 early illness schizophrenia (ESZ) patients, we applied a novel group information guided ICA (GIG-ICA) to estimate inherent connectivity states from DFC, and then investigated group differences. We found that ESZ patients showed more aberrant connectivities and greater alterations than CHR individuals. Results also suggested that disease related connectivity states occurred in CHR and ESZ groups. Regarding the dominant state with the highest contribution to dynamic connectivity, ESZ patients exhibited greater impairments than CHR individuals primarily in the cerebellum, frontal cortex, thalamus and temporal cortex, while CHR and ESZ populations shared common aberrances mainly in the supplementary motor area, parahippocampal gyrus and postcentral cortex. CHR-specific changes were also found in the connections between the superior frontal gyrus and calcarine cortex in the dominant state. Our findings suggest that CHR individuals generally show an intermediate functional connectivity pattern between HCs and SZ patients but also have unique connectivity alterations. PMID- 29038036 TI - Overexpression of Notch ligand Delta-like-1 by dendritic cells enhances their immunoregulatory capacity and exerts antiallergic effects on Th2-mediated allergic asthma in mice. AB - Dendritic cells (DCs) are professional antigen-presenting cells, and Notch ligand Delta-like-1 (DLL1) on DCs was implicated in type 1T helper (Th1) differentiation. In this study, we produced genetically engineered bone marrow derived DCs that expressed DLL1 (DLL1-DCs) by adenoviral transduction. DLL1-DCs exerted a fully mature phenotype, and had positive effects on expression levels of interleukin (IL)-12 and costimulatory molecules. Coculture of allogeneic T cells with ovalbumin (OVA)-pulsed DLL1-DCs enhanced T cell proliferative responses and promoted Th1 cell differentiation. Furthermore, adoptive transfer of OVA-stimulated DLL1-DCs into asthmatic mice alleviated the cardinal features of allergic asthma, including immunoglobulin E (IgE) production, airway hyperresponsiveness (AHR), airway inflammation, and production of Th2-type cytokines. Notably, enhanced levels of the Th1-biased IgG2a response and interferon (IFN)-gamma production were observed in these mice. Taken together, these data indicate that DLL1-DCs promoted Th1 cell development to alter the Th1/Th2 ratio and ameliorate Th2-mediated allergic asthma in mice. PMID- 29038035 TI - Biochemical and pharmacological characterization of three opioid-nociceptin hybrid peptide ligands reveals substantially differing modes of their actions. AB - In an attempt to design opioid-nociceptin hybrid peptides, three novel bivalent ligands, H-YGGFGGGRYYRIK-NH2, H-YGGFRYYRIK-NH2 and Ac-RYYRIKGGGYGGFL-OH were synthesized and studied by biochemical, pharmacological, biophysical and molecular modelling tools. These chimeric molecules consist of YGGF sequence, a crucial motif in the N-terminus of natural opioid peptides, and Ac-RYYRIK-NH2, which was isolated from a combinatorial peptide library as an antagonist or partial agonist that inhibits the biological activity of the endogenously occurring heptadecapeptide nociceptin. Solution structures for the peptides were studied by analysing their circular dichroism spectra. Receptor binding affinities were measured by equilibrium competition experiments using four highly selective radioligands. G-protein activating properties of the multitarget peptides were estimated in [35S]GTPgammaS binding tests. The three compounds were also measured in electrically stimulated mouse vas deferens (MVD) bioassay. H YGGFGGGRYYRIK-NH2 (BA55), carrying N-terminal opioid and C-terminal nociceptin like sequences interconnected with GGG tripeptide spacer displayed a tendency of having either unordered or beta-sheet structures, was moderately potent in MVD and possessed a NOP/KOP receptor preference. A similar peptide without spacer H YGGFRYYRIK-NH2 (BA62) exhibited the weakest effect in MVD, more alpha-helical periodicity was present in its structure and it exhibited the most efficacious agonist actions in the G-protein stimulation assays. The third hybrid peptide Ac RYYRIKGGGYGGFL-OH (BA61) unexpectedly displayed opioid receptor affinities, because the opioid message motif is hidden within the C-terminus. The designed chimeric peptide ligands presented in this study accommodate well into a group of multitarget opioid compounds that include opioid-non-opioid peptide dimer analogues, dual non-peptide dimers and mixed peptide- non-peptide bifunctional ligands. PMID- 29038037 TI - Brain inflammatory cytokines and microglia morphology changes throughout hibernation phases in Syrian hamster. AB - Hibernators tolerate low metabolism, reduced cerebral blood flow and hypothermia during torpor without noticeable neuronal or synaptic dysfunction upon arousal. Previous studies found extensive changes in brain during torpor, including synaptic rearrangements, documented both morphologically and molecularly. As such adaptations may represent organ damage, we anticipated an inflammatory response in brain during specific hibernation phases. In this study, signs of inflammation in the brain were investigated in the Syrian hamster hippocampus (Mesocricetus Auratus) both during hibernation (torpor and arousal phases) and in summer and winter euthermic animals. mRNA expression of the pro-inflammatory cytokines TNF alpha, IL-6 and IL-1beta was quantified by RT-qPCR. Morphological changes of microglia were studied by immunohistochemistry staining for IBA-1. Activation of microglia based on retraction and thickening of the dendritic branches and an increase in cell body size was quantified by calculation of cell body size to total cell size ratio. Expression of pro-inflammatory cytokines was upregulated early in arousal (90 min), and normalized after 8 h of arousal. Substantial loss of microglia ramification was found throughout torpor and early arousal together with a 2-fold increase in the cell body size to total cell size ratio. Notably, microglia changes were fully reversed in late arousal (8 h) to euthermic levels. These results demonstrate an upregulation of inflammatory cytokines and signs of microglia activation during hibernation, which completely resolves by late arousal. Activation of this response may serve to prevent or offset brain damage resulting from the substantial physiological changes accompanying torpor and their rapid change during early arousal. PMID- 29038038 TI - Global proteome and phosphoproteome dynamics indicate novel mechanisms of vitamin C induced dormancy in Mycobacterium smegmatis. AB - : Vitamin C has been found to affect mycobacteria in multiple ways, including increasing susceptibility to antimicrobial drugs, inducing dormancy, and having a bactericidal effect. However, the regulatory events mediating vitamin C related adaptations remain largely elusive. Ser/Thr/Tyr protein phosphorylation plays an important regulatory role in mycobacteria, contributing to environmental adaptation, including dormancy and drug resistance. This study utilised the model organism, Mycobacterium smegmatis, and TiO2 phosphopeptide enrichment combined with mass spectrometry-based proteomics methods to elucidate the mycobacterial signalling and regulatory response to sub-lethal concentrations of vitamin C. After initial validation of peptide spectra, 224 non-redundant phosphosites in 154 proteins were retained with high confidence. Data analysis revealed that 30 peptides were differentially phosphorylated with Vitamin C treatment, including novel phosphosites found on both PknG and GarA. Of these significant proteins, we validated 11 by parallel reaction monitoring of high-confidence phosphopeptides. Interestingly, 17/30 phosphopeptides were annotated as part of transmembrane proteins, suggesting that it is likely vitamin C triggers typical signal transduction events in which the protein periplasmic domain perceives environmental signals and the cytoplasmic domain is then phosphorylated. Finally, the diverse nature of phosphorylated proteins involved in signalling, transport, and carbohydrate biosynthesis indicates the extent of such regulatory phosphorylation events. BIOLOGICAL SIGNIFICANCE: Our findings provide new mechanistic insight into a coordinated network of signalling and regulatory responses to sub-lethal vitamin C in Mycobacterium smegmatis and provide evidence that vitamin C is able to act as a novel extracellular signalling molecule. Vitamin C treatment caused changes in both the proteome and phosphoproteome associated with response to oxidative stress, a shift in metabolic regulation and progression toward dormancy, as well as phospho-dependent activation of specific secretory pathways and activation of specific two component and Ser/Thr/Tyr protein kinase activities. This study confirms the potential of vitamin C as convenient means to study aspects of mycobacterial dormancy, including those regulated at post-translational level. PMID- 29038039 TI - Hysteroscopic Transcervical Resection for Atypical Polypoid Adenomyoma of the Uterus: A Valid, Fertility-Preserving Option. AB - STUDY OBJECTIVE: To evaluate hysteroscopic transcervical resection (TCR) for atypical polypoid adenomyoma of the uterus (APA). DESIGN: Retrospective study (Canadian Task Force classification II-2). SETTING: Single tertiary hospital. PATIENTS: Women who underwent TCR for APA at Kawasaki Municipal Hospital between 2003 and 2015. INTERVENTIONS: Clinical records were obtained. MEASUREMENTS AND MAIN RESULTS: Thirty-five patients with APA were evaluated. The median patient age was 35 years (range, 23-43 years), and the median tumor diameter was 22 mm (range, 9-51 mm). The median duration of observation after the first TCR was 34.0 months (range, 4.2-133.7 months). In 19 patients, the tumor recurred after the first TCR. A second TCR was performed in 13 patients, 11 of whom experienced recurrence. A third TCR was performed in 7 patients, all 7 of whom experienced recurrence. A fourth TCR was performed in 4 patients, 3 of whom experienced recurrence. The recurrence rate after the second TCR was higher than that after the first TCR (71.4%-84.6% vs 54.3%; p < .01, t test). The median disease-free interval was 12.4 months after the first TCR, 15.3 months after the second TCR, 10.5 months after the third TCR, and 10.9 months after the fourth TCR. Seven patients progressed to endometrial cancer; however, there was no mortality. Six of the 35 patients conceived, and 4 had a normal spontaneous delivery. CONCLUSION: Owing to disease-free intervals that follow treatment, TCR is a promising treatment modality as a fertility-preserving option for patients with APA under careful observation. Twenty percent of patients with APA develop cancer; however, the present study showed no mortality. PMID- 29038040 TI - Hysteroscopic Intrauterine Adhesiolysis Using a Blunt Spreading Dissection Technique With Double-action Forceps. AB - STUDY OBJECTIVE: To demonstrate step-by-step the technique of hysteroscopic adhesiolysis (HA) by means of a blunt spreading technique using double-action forceps to dissect and restore the layer between the anterior and posterior uterine walls in a patient with severe intrauterine adhesions (IUAs), particularly in cases in which the endometrial lining is obscured on ultrasound imaging and the endometrial cavity is completely occluded on hysteroscopy. DESIGN: A step-by-step explanation of the technique using videos and pictures (educative video) (Canadian Task Force Classification III). SETTING: A university affiliated hospital. PATIENT: A 36-year-old, gravida 3, para 1, abortus 2 woman presenting with amenorrhea for 5 months after surgical termination of a 53-day intrauterine pregnancy. She had no cyclic lower abdominal pain. Ultrasound revealed an obscure endometrial stripe and no obvious hematometra. Both the urine human chorionic gonadotropin test and the progesterone withdrawal test were negative. One month before admission, hysteroscopic adhesiolysis failed because the uterine cavity was inaccessible because of adhesions completely occluding the lower uterine cavity. Additionally, the uterine cavity could not be explored with a probe because the anatomic layer of the endometrial lining could not be easily identified by transabdominal ultrasound. INTERVENTION: HA using a blunt spreading dissection technique with double-action forceps to restore the uterine cavity followed by "ploughing" of the intrauterine scar tissue using cold scissors [1]. MEASUREMENTS AND MAIN RESULTS: An intraoperative technique with commentary highlighting tips for a successful dissection. The uterine cavity was successfully restored using the blunt spreading dissection technique. There were no complications, including false uterine wall passage, uterine perforation, or fluid overload. Postoperative hysteroscopy at 1 month revealed an almost normal uterine cavity. CONCLUSIONS: HA using a blunt spreading dissection technique to restore the uterine cavity is a simple, effective, and safe hysteroscopic skill, especially when the endometrial stripe is obscured on ultrasound imaging and exploring the uterine cavity by means of a probe has failed. Furthermore, this technique may serve as an alternative to resectoscopic techniques because it uses cold forceps and scissors, which provide better protection for the endometrium. PMID- 29038041 TI - Minilaparoscopy vs Standard Laparoscopy for Sentinel Node Dissection: A Pilot Study. AB - OBJECTIVE: To compare 3-mm minilaparoscopy and standard 5-mm laparoscopy for sentinel lymph node (SLN) detection in apparent early-stage endometrial cancer (EC). DESIGN: Retrospective study (Canadian Task Force classification II-2). SETTING: Two academic research centers. PATIENTS: Consecutive women with apparent early-stage EC who underwent surgical staging with SLN detection between November 2015 and April 2016. INTERVENTIONS: The surgical approach was a total laparoscopic extrafascial hysterectomy plus bilateral salpingo-oophorectomy and SLN detection. Systematic lymphadenectomy was performed in selected cases. In all patients, SLN detection was performed with cervical injection of indocyanine green and the use of an optical camera with a near-infrared high-intensity light source for detection of fluorescence imaging. All patients who underwent a minilaparoscopic approach (using one 5-mm scope and three 3-mm ancillary trocars) have been enrolled at the University of Insubria, whereas at the San Gerardo Hospital, standard laparoscopy was performed with one 10-mm scope and three 5-mm ancillary trocars. MEASUREMENTS AD MAIN RESULTS: A total of 38 patients were enrolled, including 15 (39.5%) in the 3-mm group and 23 (60.5%) in the 5-mm group. No between-group differences were found in terms of demographic and tumor characteristics. Bilateral SLNs were detected in 73.3% of the patients in the 3 mm group and in 73.9% in the 5-mm group. Operative time, blood loss, hemoglobin drop, hospital stay, and the incidence and severity of complications were similar in the 2 groups. One patient (4.3%) in the standard 5-mm group had a positive SLN result (a micrometastasis in the left external iliac SLN). No positive SLNs were detected in the 3-mm group. CONCLUSION: Minilaparoscopic SLN biopsy appears to be a promising and feasible technique for EC staging. Further research is warranted to investigate the possible benefits of 3-mm instruments in this specific setting. PMID- 29038042 TI - Relationship between Catamenial Pneumothorax or Non-catamenial Pneumothorax and Endometriosis. AB - STUDY OBJECTIVE: To evaluate the clinical characteristics of women presenting with catamenial pneumothorax and compare them with those with noncatamenial pneumothorax. DESIGN: A case-control study (Canadian Task Force II-2). SETTING: A multicenter study. PATIENTS: Forty-two women with pneumothorax: 21 women had catamenial pneumothorax (study group), and 21 were age-matched women with noncatamenial pneumothorax (control group). INTERVENTIONS: All patients underwent video-assisted thoracoscopy and pleural biopsy. We also evaluated the presence and stage of pelvic endometriosis in 16 women with catamenial pneumothorax who had undergone laparoscopic surgery. MEASUREMENTS AND MAIN RESULTS: The number of known episodes of catamenial pneumothorax before treatment was between 2 and 8 episodes. Symptoms were mainly chest pain and shortness of breath; 1 patient had hemoptysis. The prevalence of right-sided pneumothorax was 95.2% in the study group and 57.1% in the control group (p = .004). Besides 2 cases with complete collapse of the right lung, most of the cases in the study group had apical pneumothorax. Pelvic endometriosis was found in 15 of 16 women (93.7%), mainly stage 3 or 4, and thoracic endometriosis in 12 of 20 women (60%). None of the patients in the control group had thoracic endometriosis. CONCLUSION: Thoracic endometriosis is found in over half of women with catamenial pneumothorax but absent in those with noncatamenial pneumothorax. Right apical pneumothorax is predominant in women with catamenial pneumothorax. Endometriosis plays an important role in the mechanism of catamenial pneumothorax. PMID- 29038043 TI - Laparoscopic Excision of a Scar Pregnancy and Isthmocele Repair. AB - STUDY OBJECTIVE: Laparoscopic excision of a scar pregnancy and isthmocele repair with a barbed suture. DESIGN: A step-by-step explanation of the laparoscopic excision technique of a scar pregnancy and isthmocele repair. SETTING: Cesarean scar pregnancy occurs as a result of attachment of the products of conception to the uterine scar [1-3]. In the present case, a 34-year-old, gravida 4, para 1 patient with a history of 1 miscarriage and 1 ectopic pregnancy was diagnosed with type 2 cesarean scar pregnancy at 7 weeks of gestation. Dilation and curretage was performed at the 8th week of gestation to terminate the pregnancy. On ultrasonography performed 1 month later, placental material underlying the isthmocele was observed. Her beta human chorionic gonadotropin level was 13 836 mIU/mL. She was followed up for 1.5 months until the beta human chorionic gonadotropin levels were negative. However, the mass underneath the scar had grown larger, measuring up to 5 * 6 cm. Laparoscopy was performed because the patient reported vaginal spotting and pelvic pain. The incision was sutured with a synthetic absorbable unidirectional barbed suture (Stratafix Knotless Tissue Control Device; Ethicon Inc., Somerville, NJ). No residual scar defect was visible on follow-up ultrasonography 1 week and 1 month after surgery. CONCLUSION: Barbed sutures ease the repair of uterine scar defects and can provide ideal reapproximation of thick myometrial tissue. Laparoscopic treatment of a scar pregnancy and isthmocele repair are effective and safe modes of treatment. PMID- 29038044 TI - Readmission Rates after Same-Day Discharge Compared with Postoperative Day 1 Discharge after Benign Laparoscopic Hysterectomy. AB - STUDY OBJECTIVE: To determine if there is a difference in readmission rates after same-day discharge compared with postoperative day 1 discharges after laparoscopic hysterectomy. DESIGN: A retrospective cohort study with 1:2 propensity score matching (Canadian Task Force classification II-2). SETTING: American College of Surgeons National Surgical Quality Improvement Program database. PATIENTS: Women undergoing benign laparoscopic total or supracervical hysterectomy or laparoscopic-assisted vaginal hysterectomy with or without adnexal surgery between the years 2010 to 2015. INTERVENTIONS: Three thousand thirty-two low-risk women discharged on postoperative day 0 and 6064 women discharged on postoperative day 1 were included in the analysis. MEASUREMENTS AND MAIN RESULTS: The overall readmission rate was 1.8%; after same-day discharge, the readmission rate was 2.2%, and after postoperative day 1 discharge the readmission rate was 1.7% (p = .10). After logistic regression analysis, smoking (adjusted odds ratio [aOR] = 2.06; 95% confidence interval [CI], 1.49-2.88), nonwhite race (aOR = 1.53; 95% CI, 1.1007-2.14), and cystoscopy (aOR = 2.05; 95% CI, 1.49-2.82) were associated with an increased risk of readmission. CONCLUSION: There was no statistically significant difference in readmission rates after laparoscopic hysterectomy between women discharged on the day of surgery or postoperative day 1. PMID- 29038045 TI - Effects of procalcitonin-guided treatment on antibiotic use and need for mechanical ventilation in patients with acute asthma exacerbation: Meta-analysis of randomized controlled trials. AB - OBJECTIVE: The primary outcome was to determine whether serum procalcitonin guided antibiotic therapy can reduce antibiotic exposure in patients with an acute exacerbation of asthma presenting to the primary care facility or emergency department, or during hospital admission. The secondary outcome was the need for mechanical ventilation. METHODS: An extensive literature search was performed to identify randomized controlled clinical trials (published in English) that compared serum procalcitonin-guided antibiotic therapy versus antibiotic use according to physician's discretion for adult participants with mild, moderate, or severe acute asthma exacerbations. RESULTS: Four randomized controlled trials evaluating 457 patients were included in this meta-analysis, with significant homogeneity observed among these studies. Procalcitonin-based protocols decreased antibiotic prescriptions (relative risk 0.58, 95% confidence interval 0.50-0.67). The conclusion regarding the difference between the two groups in the need for mechanical ventilation (relative risk 1.10, 95% confidence interval 0.62-1.94) was guarded due to inadequate power and the potential for type II error. The overall quality of evidence was also limited by the lack of double-blinding. CONCLUSIONS: These data suggest a potential benefit for the use of serum procalcitonin in guiding antibiotic therapy in patients with an acute asthma exacerbation and advocates the need for more randomized controlled trials. PMID- 29038046 TI - Multiple reversals of strand asymmetry in molluscs mitochondrial genomes, and consequences for phylogenetic inferences. AB - Strand asymmetry in nucleotide composition is a remarkable feature of animal mitochondrial genomes. The strand-specific bias in the nucleotide composition of the mtDNA has been known to be highly problematic for phylogenetic analyses. Here, the strand asymmetry was compared across 140 mollusc species and analyzed for a mtDNA fragment including twelve protein-coding genes. The analyses show that almost all species in Gastropoda (except Heterobranchia) and all species in Bivalvia present reversals of strand bias. The skew values on individual genes for all codon positions (P123), third codon positions (P3), and fourfold redundant third codon positions (P4FD) indicated that CG skews are the best indicators of strand asymmetry. The differences in the patterns of strand asymmetry significantly influenced the amino acid composition of the encoded proteins. These biases are most striking for the amino acids Valine, Cysteine, Asparagine and Threonines, which appear to have evolved asymmetrical exchanges in response to shifts in nucleotide composition. Molluscs with strong variability of genome architectures (ARs) are usually characterized by a reversal of the usual strand bias. Phylogenetic analyses show that reversals of asymmetric mutational constraints have consequences on the phylogenetic inferences, as taxa characterized by reverse strand bias (Heterobranchia and Bivalvia) tend to group together due to long-branch attraction (LBA) artifacts. Neutral Transitions Excluded (NTE) model did not overcome the problem of heterogeneous biases present in molluscs mt genomes, suggested it may not be appropriate for molluscs mt genome data. Further refinement phylogenetic models may help us better understand internal relationships among these diverse organisms. PMID- 29038047 TI - Joint groupwise registration and ADC estimation in the liver using a B-value weighted metric. AB - PURPOSE: The purpose of this work is to develop a groupwise elastic multimodal registration algorithm for robust ADC estimation in the liver on multiple breath hold diffusion weighted images. METHODS: We introduce a joint formulation to simultaneously solve both the registration and the estimation problems. In order to avoid non-reliable transformations and undesirable noise amplification, we have included appropriate smoothness constraints for both problems. Our metric incorporates the ADC estimation residuals, which are inversely weighted according to the signal content in each diffusion weighted image. RESULTS: Results show that the joint formulation provides a statistically significant improvement in the accuracy of the ADC estimates. Reproducibility has also been measured on real data in terms of the distribution of ADC differences obtained from different b values subsets. CONCLUSIONS: The proposed algorithm is able to effectively deal with both the presence of motion and the geometric distortions, increasing accuracy and reproducibility in diffusion parameters estimation. PMID- 29038048 TI - The influence of DOCA-salt hypertension and chronic administration of the FAAH inhibitor URB597 on KCa2.3/KCa3.1-EDH-type relaxation in rat small mesenteric arteries. AB - The aim of this study was to examine the influence of deoxycorticosterone acetate salt (DOCA-salt) hypertension and chronic treatment with the fatty acid amide hydrolase inhibitor, URB597, on small and intermediate conductance calcium activated potassium channels and endothelium-dependent hyperpolarization (KCa2.3/KCa3.1-EDH) in rat small mesenteric arteries (sMAs). The EDH-type response was investigated, in endothelium-intact sMAs using a wire myograph, by examining acetylcholine-evoked vasorelaxation in the presence of Nomega-nitro-L arginine methyl ester and indomethacin (inhibitors of nitric oxide synthase and cyclooxygenase, respectively). In normo- and hypertension the efficacy of EDH type relaxation was similar and inhibition of KCa2.3 and KCa3.1 by UCL1684 and TRAM-34, respectively, given alone or in combination, attenuated EDH-mediated vasorelaxation. KCa3.1 expression and NS309 (KCa2.3/KCa3.1 activator)-induced relaxation was reduced in sMAs of DOCA-salt rats. Endothelium denudation and incubation with UCL1684 and TRAM-34 attenuated the maximal NS309-evoked vasorelaxation in both groups. URB597 had no effect in functional studies, but increased the expression of KCa3.1 in the sMAs. KCa2.3/KCa3.1-EDH-mediated relaxation was maintained in the sMAs of DOCA-salt rats despite endothelial dysfunction and down-regulation of KCa3.1. Furthermore, KCa3.1 played a key role in the EDH-type dilator response of sMAs in normo- and hypertension. The hypotensive effect of URB597 is independent of KCa2.3/KCa3.1-EDH-type relaxation. PMID- 29038049 TI - Inhibition of EGFR attenuates fibrosis and stellate cell activation in diet induced model of nonalcoholic fatty liver disease. AB - Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease. NAFLD begins with steatosis and advances to nonalcoholic steatohepatitis (NASH) and cirrhosis. The molecular mechanisms involved in NAFLD progression are not understood. Based on recent studies showing dysregulation of epidermal growth factor receptor (EGFR) in animal models of liver injury, we sought to determine if inhibition of EGFR mitigates liver fibrosis and HSC activation in NAFLD. We utilized the high fat diet (HFD)-induced murine model of liver injury to study the role of EGFR in NAFLD. The lipid accumulation, oxidative stress, hepatic stellate cell (HSC) activation and matrix deposition were examined in the liver tissues. We also evaluated the EGFR signaling pathway, ROS activation and pro-fibrogenic phenotype in oxidized low density lipoproteins (ox-LDL) challenged cultured HSCs. We demonstrate that EGFR was phosphorylated in liver tissues of HFD murine model of NAFLD. Inhibition of EGFR prevented diet induced lipid accumulation, oxidative stress, and HSC activation and matrix deposition. In cultured HSCs, we show that ox-LDL caused rapid activation of the EGFR signaling pathway and induce the production of reactive oxygen species. EGFR also mediated HSC activation and promoted a pro-fibrogenic phenotype. In conclusion, our data demonstrate that EGFR plays an important role in NAFLD and is an attractive target for NAFLD therapy. PMID- 29038050 TI - Mechanisms of DNA damage repair in adult stem cells and implications for cancer formation. AB - Maintenance of genomic integrity in tissue-specific stem cells is critical for tissue homeostasis and the prevention of deleterious diseases such as cancer. Stem cells are subject to DNA damage induced by endogenous replication mishaps or exposure to exogenous agents. The type of DNA lesion and the cell cycle stage will invoke different DNA repair mechanisms depending on the intrinsic DNA repair machinery of a cell. Inappropriate DNA repair in stem cells can lead to cell death, or to the formation and accumulation of genetic alterations that can be transmitted to daughter cells and so is linked to cancer formation. DNA mutational signatures that are associated with DNA repair deficiencies or exposure to carcinogenic agents have been described in cancer. Here we review the most recent findings on DNA repair pathways activated in epithelial tissue stem and progenitor cells and their implications for cancer mutational signatures. We discuss how deep knowledge of early molecular events leading to carcinogenesis provides insights into DNA repair mechanisms operating in tumours and how these could be exploited therapeutically. PMID- 29038052 TI - Serine/threonine protein kinase PpkA contributes to the adaptation and virulence in Pseudomonas aeruginosa. AB - Pseudomonas aeruginosa is a leading cause of nosocomial infections worldwide and has become a serious public health threat, which is attributed to a large extent to its extraordinary environmental adaptability and diverse virulence factors that result in infection and progression of pathogenesis. The eukaryote-type serine/threonine (Ser/Thr) protein kinases, known for playing major regulatory roles in eukaryotes, have been demonstrated to play a central role in regulating various bacterial cellular processes via catalyzing protein phosphorylation. Although PpkA, a Ser/Thr protein kinase first identified in P. aeruginosa, has been implicated in association with bacterial virulence, little is known about the protein. Therefore, in this study, to assess the potential role of PpkA in the regulation of P. aeruginosa environmental adaptation and virulence, variations of biofilm formation, pyocyanin production, tolerance to stress, cell invasion and plant virulence were determined in wild type PAO1, ppkA gene-deleted and complemented mutant strains. Our results indicate that the mutant strain lacking ppkA exhibited a significant decrease of biofilm formation and pyocyanin production, less tolerance to oxidative and osmotic stresses, inefficient invasion of host cells and a reduction of bacterial virulence. These findings provide new insight into the regulation of various cellular processes by PpkA; this is an important mechanism for adaptation and virulence in P. aeruginosa. PMID- 29038051 TI - Integrated approach reveals diet, APOE genotype and sex affect immune response in APP mice. AB - Alzheimer's disease (AD) is a multifactorial neurodegenerative disorder that is influenced by genetic and environmental risk factors, such as inheritance of epsilon4 allele of APOE (APOE4), sex and diet. Here, we examined the effect of high fat diet (HFD) on amyloid pathology and expression profile in brains of AD model mice expressing human APOE isoforms (APP/E3 and APP/E4 mice). APP/E3 and APP/E4 mice were fed HFD or Normal diet for 3months. We found that HFD significantly increased amyloid plaques in male and female APP/E4, but not in APP/E3 mice. To identify differentially expressed genes and gene-networks correlated to diet, APOE isoform and sex, we performed RNA sequencing and applied Weighted Gene Co-expression Network Analysis. We determined that the immune response network with major hubs Tyrobp/DAP12, Csf1r, Tlr2, C1qc and Laptm5 correlated significantly and positively to the phenotype of female APP/E4-HFD mice. Correspondingly, we found that in female APP/E4-HFD mice, microglia coverage around plaques, particularly of larger size, was significantly reduced. This suggests altered containment of the plaque growth and sex-dependent vulnerability in response to diet. The results of our study show concurrent impact of diet, APOE isoform and sex on the brain transcriptome and AD-like phenotype. PMID- 29038054 TI - Characterization of roles of SpaA in Erysipelothrix rhusiopathiae adhesion to porcine endothelial cells. AB - Erysipelothrix rhusiopathiae is the causative agent of animal erysipelas and human erysipeloid. The major protective antigen SpaA was suggested to play important roles in E. rhusiopathiae adhesion to host cells, but there is no specific study on SpaA pathogenic roles in adhesion. In this study we characterized direct and indirect roles of SpaA in E. rhusiopathiae adhesion to porcine endothelial cells. Recombinant E. rhusiopathiae SpaA (rSpaA) successfully binded to porcine iliac arterial endothelial cells. rSpaA protein pre-incubating endothelial cells or rSpaA antiserum pre-incubating E. rhusiopathiae significantly decreased E. rhusiopathiae adhesion to endothelial cells. rSpaA successfully binded host plasminogen and fibronectin, and rSpaA antiserum significantly decreased plasminogen-recruitment activity but not fibronectin recruitment activity of E. rhusiopathiae. In conclusion, SpaA acts as adhesin in E. rhusiopathiae adhesion to host cells, and SpaA binding activity to host plasminogen highly likely play roles in this adhesion. PMID- 29038053 TI - Flagellar motility, extracellular proteases and Vibrio cholerae detachment from abiotic and biotic surfaces. AB - Vibrio cholerae of serogroups O1 and O139, the causative agent of Asiatic cholera, continues to be a major global health threat. This pathogen utilizes substratum-specific pili to attach to distinct surfaces in the aquatic environment and the human small intestine and detaches when conditions become unfavorable. Both attachment and detachment are critical to bacterial environmental survival, pathogenesis and disease transmission. However, the factors that promote detachment are less understood. In this study, we examine the role of flagellar motility and hemagglutinin/protease (HapA) in vibrio detachment from a non-degradable abiotic surface and from the suckling mouse intestine. Flagellar motility facilitated V. cholerae detachment from abiotic surfaces. HapA had no effect on the stability of biofilms formed on abiotic surfaces despite representing >50% of the proteolytic activity present in the extracellular matrix. We developed a balanced lethal plasmid system to increase the bacterial cyclic diguanylate (c-di-GMP) pool late in infection, a condition that represses motility and HapA expression. Increasing the c-di-GMP pool enhanced V. cholerae colonization of the suckling mouse intestine. The c-di-GMP effect was fully abolished in hapA isogenic mutants. These results suggest that motility facilitates detachment in a substratum-independent manner. Instead, HapA appears to function as a substratum-specific detachment factor. PMID- 29038055 TI - Serum and brain purine levels in an experimental systemic infection of mice by Cryptococcus neoformans: Purinergic immunomodulatory effects. AB - The aim of this study was to evaluate the purine levels in serum and brains of mice experimentally infected by Cryptococcus neoformans. Twenty-four mice were divided into the following groups: a control group (n = 12; Group A) and an infection group with animals that were infected (n = 12; Group B) with a 0.3-mL intraperitoneal injection containing 1.7 * 107C. neoformans cells. Blood and brains were collected on days 20 (n = 6 per group) and 50 (n = 6 per group) post infection (PI). Histopathology and lung and brain cultures were performed to confirm fungal infection and tissue injuries. The levels of adenosine triphosphate (ATP), adenosine diphosphate (ADP), adenosine monophosphate (AMP), adenosine (ADO), inosine (INO), hypoxanthine (HYPO), xanthine (XAN) and uric acid (UA) in brains and serum were measured by high-performance liquid chromatography (HPLC) analysis. At both time points, histopathology analysis revealed inflammatory infiltrates in the brains and lungs of infected mice; clinical signs, such as piloerection and clinical respiratory distress, were also observed. ATP levels were significantly increased on days 20 and 50 PI (P < 0.01) in brains and serum, while brain ADO levels were increased on day 20 PI; brain and serum ADO levels were decreased on day 50 PI. Levels of ADP and AMP did not differ between groups (P > 0.05). Serum levels of INO of infected mice increased only on day 50 PI (P < 0.05). HYPO levels were reduced in the brains of infected animals at both experimental time points and were decreased in serum at day 50 PI (P < 0.05). XAN levels increased in infected mice only in serum on day 50 PI (P < 0.05). The endogenous anti-oxidant uric acid was significantly increased in brain (days 20 and 50 PI) and decreased in serum. It is possible that C. neoformans infection in mice leads to a high ATP/ADO ratio that may improve the brain pro inflammatory response during both periods, while high ATP levels in serum act as a systemic signal to improve the immune response. Moreover, the anti-oxidant uric acid may increase in the brain to protect inflamed tissue from oxidative stress. PMID- 29038056 TI - Worldwide prevalence of viral infection in AECOPD patients: A meta-analysis. AB - BACKGROUND AND OBJECTIVE: Chronic obstructive pulmonary disease (COPD) is a chronic progressive lung disease. On the other hand, viral infections of the airway are associated with the acute exacerbations of COPD. A systematic review and meta-analysis were performed to determine the prevalence rate of viral infections in acute exacerbations of COPD patients. METHODS: PubMed database was systematically searched for population-based prevalence studies (1930-2017). Fixed and random effects models were used for estimation of summary effect-sizes. Between-study heterogeneity and publication bias were also calculated. "Viral infections" and "COPD patients with exacerbations" were the two critical inclusion criteria. RESULTS: Twenty-eight studies were selected out of 26078 articles for the present review. The overall estimation of the prevalence of viral infection was 0.374 (95% C.I: 0.359-0.388). Also, the evident heterogeneity of viral infection was observed among the studies (Cochran Q test, p value < 0.001 and I-squared = 97.5%). The highest and lowest prevalence rate was related to rhinovirus and echovirus, respectively. Also, the results of this study showed that the prevalence of viral infection in exacerbated COPD patients has fluctuation during the years with a slight increase and decrease. CONCLUSIONS: The results of this systematic review demonstrated that respiratory viral infections have an important role in the acute exacerbation of COPD (AECOPD). In addition, determining the exact geographic epidemiology of these viruses is very important to manage the treatment of these infections. PMID- 29038057 TI - Bio-prospecting of coral (Porites lutea) mucus associated bacteria, Palk Bay reefs, Southeast coast of India. AB - Coral mucus is one of the key localization in the coral holobiont, as this serves as an energy rich substrate for a wide range of abundant, diverse and multifunctional microbiota. However, very little is known about the functional role of bacterial communities in their associations with corals. In the present study, a total of 48 isolates were obtained from Porites lutea wherein the genus of Bacillus sp. and Vibrio sp. were predominant. Bio-prospecting the coral mucus revealed the existence of (10.42%) antagonistic bacteria against the tested bacterial pathogens. Molecular taxonomy (16S rRNA) proved the identity of these antagonistic bacteria belong to Enterobacter cloacae (CM1), Bacillus subtilis (CM2), Bacillus sp. (CM11) and Bacillus marisflavi (CM12). The secondary screening emphasized that the ethyl acetate extract of B. subtilis showed strong antagonistic effect, followed by the chloroform extract of E. cloacae and ethyl acetate extract of B. marisflavi. The antagonistic activity was statistically confirmed by Principal Component Analysis and Hierarchical Cluster Analysis. The privileged coral mucus associated bacterial (CMAB) solvent extracts inhibited the bacterial pathogens at 100 MUg/ml (MIC) and ceased the growth at 200 MUg/ml (MBC). The hemolytic and brine shrimp lethality assays disclosed the non-toxic nature of solvent extracts of CMAB. Altogether, the present investigation brought out the diversity of bacteria associated with the mucus of P. lutea. In addition, bio-prospecting corroborated the CMAB as the potential source of pharmacologically important bioactive compounds against a wide range of bacterial pathogens. PMID- 29038059 TI - First isolation and characterization of the pathogenic Aeromonas veronii bv. veronii associated with ulcerative syndrome in the indigenous Pelophylax ridibundus of Al-Ahsaa, Saudi Arabia. AB - Virulent microbial pathogen infections are the main cause for amphibian decline worldwide. In the present study, a bacterial strain named RDL-2, which was isolated from the skin of infected Pelophylax ridibundus larvae, was cultured and then phenotypically and biochemically characterized using scanning electron microscopic observations and the API20E strip and Biolog Gen III MicroPlate system. The 16S rRNA gene sequence of this strain was also obtained and used in strain identification and phylogenetic analysis. Healthy P. ridibundus larvae were challenged with RDL-2 and monitored to determine clinical signs consistent with the disease. Strain RDL-2 was identified as Aeromonas veronii based on its phenotypic and biochemical characteristics and on 16S rRNA gene sequence and phylogenetic analysis: RDL-2 was gram-negative, rod-shaped, and reacted positively for 69 (73%) of the 94 traits analysed; its 16S rRNA gene sequence displayed the highest homology to that of A. veronii bv. veronii (99.9%). Koch's postulates were fulfilled confirming that A. veronii is the causal agent of ulcerative syndrome. Thus, this study is the first to report A. veronii as a marsh frog pathogen in the Al-Ahsaa region. The aetiology of A. veronii as a potential poikilothermic pathogen shown here will expedite the development of diagnostic tests and methods for eradicating ulcerative syndrome. PMID- 29038058 TI - Antimicrobial and synergistic activity of essential oils of Aloysia triphylla and Lippia alba against Aeromonas spp. AB - The objective of this study was to identify and quantify the chemical constituents, as well as the antimicrobial, antibiofilm and synergistic activity with florfenicol of essential oils of Aloysia triphylla (EOAT) and Lippia alba (EOLA) against Aeromonas spp. The antimicrobial activity of EOAT and EOLA was verified by the minimum bactericidal concentration (MBC) and the action against biofilm forming and consolidated biofilm. The synergistic activity of EOAT and EOLA with florfenicol was performed by the checkerboard technique. The main components of EOAT were alpha-citral (39.91%), E-carveol (25.36%) and limonene (21.52%), while that of EOLA was linalool (81.64%). Aeromonas spp. isolates showed sensitivity to both essential oils with MBC between 195.3 and 3125.0 MUL/mL. Two isolates were classified as non-producing, three as moderate and 16 as weak biofilm producers. The EOAT and EOLA interfered in the biofilm formation, from moderate to weak producers, but did not cause any interference in the consolidated biofilm. The EOAT and EOLA combined with florfenicol showed synergistic effect and reduced MBC. The EOAT and EOLA have potential for application as antimicrobial agents, as they interfere in the initial formation of biofilm and when combined with florfenicol, present a synergic effect with a reduction in the minimum dose of the antibiotic. PMID- 29038060 TI - Comparing Pain and Depressive Symptoms of Chronic Opioid Therapy Patients Receiving Dose Reduction and Risk Mitigation Initiatives With Usual Care. AB - : Dose reduction and risk mitigation initiatives have been recommended to reduce opioid-related risks among patients receiving chronic opioid therapy (COT), but questions remain over whether these initiatives worsen pain control and quality of life. In 2014 to 2015, we interviewed 1,588 adult COT patients within a health care system in Washington State and compared those who received dose reduction and risk mitigation initiatives in primary care clinics (intervention) with patients in comparable health care settings without initiatives (control). The primary outcomes were pain assessed using the pain, enjoyment, and general activity (PEG) scale, a 3-item scale to assess global pain intensity and interference, with secondary measures including depression (Patient Health Questionnaire-8 scale). Generalized estimating equations for linear regression models were used to estimate differences in mean scores between intervention and control sites. Estimated differences, adjusted for patient characteristics and weighted for nonresponse, between patients at intervention and control clinics were not clinically significant for the PEG (-.03, 95% confidence interval = -.25 to .19) or Patient Health Questionnaire-8 (-.64, 95% confidence interval = -1.19 to -.08). We found no evidence that COT patients in clinics with dose reduction and risk mitigation initiatives had clinically meaningful differences in pain intensity, interference with activities and enjoyment of life, or depressive symptoms compared with control health care settings. PERSPECTIVE: This article evaluates the effect of dose reduction and risk mitigation initiatives, such as those recently recommended by the Centers for Disease Control and Prevention, to reduce risks associated with COT on global pain and interference, depressive symptoms, and perceived pain relief and bothersomeness of side effects. PMID- 29038061 TI - Structural and Functional Brain Changes at Early and Late Stages of Complex Regional Pain Syndrome. AB - : Brain plasticity is demonstrated in complex regional pain syndrome (CRPS), although it is unclear how it modulates at different stages of CRPS. The observation that symptoms can progress over time suggests that the pattern of brain changes might also evolve. We measured structural and functional changes as well as sensorimotor integration at the early stage (ES) and late stage (LS) of CRPS. Twelve ES patients, 16 LS patients, and 16 age- and sex-matched controls were recruited. Gray matter (GM) volume was estimated using voxel-based morphometry. Cerebral perfusion was measured using arterial spin labeling, because it provides a measure of resting neural activity. Connectivity to sensorimotor regions was evaluated using blood-oxygen level-dependent images. The ES group showed reduced GM volume and perfusion in areas associated with spatial body perception, somatosensory cortex, and the limbic system, whereas the LS group exhibited increased perfusion in the motor cortex but no changes in GM volume. However, in the LS group, GM volume in areas associated with pain processing was negatively correlated with average pain levels, likely reflecting a response to ongoing pain. Furthermore, connectivity to sensorimotor cortex showed disruptions in regions associated with motor control and planning, implying impairment of higher-order motor control. PERSPECTIVE: This article presents brain changes at ES and LS of CRPS. We found different patterns of brain changes between these 2 stages. Understanding modulation of brain plasticity at different stages of CRPS could help understand the diversity in outcomes and treatment response and hopefully improve treatment planning. PMID- 29038062 TI - ZnO-based nanocarriers for drug delivery application: From passive to smart strategies. AB - Due to the excellent biocompatibility as well as the low cost, nanoscale ZnO shows a great potential in drug delivery application. The richness of the structures, easy modification and pleasant properties of nanoscale ZnO make these materials reasonable choices for drug delivery. In the recent decade, various ZnO nanostructures as well as nanohybrids have been carried out for optimizational drug loading and carrying. To control the drug release behavior, many nanoscale ZnO-based smart drug delivery systems which are responsive to particular stimuli via characteristics of ZnO (e.g. dissolution in acid, microwave absorbing, hydrophobic/hydrophilic transition) have been successfully synthesized. Herein, we review the recent exciting progress on the nanoscale ZnO-based drug delivery systems: from the passive to smart strategies. PMID- 29038063 TI - Spontaneous nano-emulsification: Process optimization and modeling for the prediction of the nanoemulsion's size and polydispersity. AB - The aim of the present study was to optimize the size and polydispersity of a lipid nanoemulsion as a function of the oil (Labrafac(r) WL1349), surfactant (Kolliphor(r) HS 15) and cosurfactant (Span(r) 80) phase composition and temperature. The nanoemulsions were prepared using a low-energy self emulsification method. The Z-average diameter and the polydispersity index (PDI) were modeled with mixture experiments. Nanoemulsions from 20nm to 120nm with PDI<0.2 were obtained at the three different tested temperatures (30 degrees C, 50 degrees C and 90 degrees C). The nanoemulsion size was able to be controlled with the oil, surfactant and cosurfactant concentrations. Interestingly, the smallest PDIs were obtained at 30 degrees C, and the cosurfactant concentration was able to be adjusted to optimize the formulation and to obtain nanoemulsions in the 20-120nm range with a PDI smaller than 0.14. These nanoemulsions have shown a good stability at 4 degrees C in storage conditions and at 37 degrees C in diluted conditions. PMID- 29038064 TI - E-selectin targeted immunoliposomes for rapamycin delivery to activated endothelial cells. AB - Activated endothelial cells play a pivotal role in the pathology of inflammatory disorders and thus present a target for therapeutic intervention by drugs that intervene in inflammatory signaling cascades, such as rapamycin (mammalian target of rapamycin (mTOR) inhibitor). In this study we developed anti-E-selectin immunoliposomes for targeted delivery to E-selectin over-expressing tumor necrosis factor-alpha (TNF-alpha) activated endothelial cells. Liposomes composed of 1,2-dipalmitoyl-sn-glycero-3.;hosphocholine (DPPC), Cholesterol, and 1,2 Distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethyleneglycol)-2000] maleimide (DSPE-PEG-Mal) were loaded with rapamycin via lipid film hydration, after which they were further functionalized by coupling N-succinimidyl-S acetylthioacetate (SATA)-modified mouse anti human E-selectin antibodies to the distal ends of the maleimidyl (Mal)-PEG groups. In cell binding assays, these immunoliposomes bound specifically to TNF-alpha activated endothelial cells. Upon internalization, rapamycin loaded immunoliposomes inhibited proliferation and migration of endothelial cells, as well as expression of inflammatory mediators. Our findings demonstrate that rapamycin-loaded immunoliposomes can specifically inhibit inflammatory responses in inflamed endothelial cells. PMID- 29038065 TI - Cationic nanoemulsions as nucleic acids delivery systems. AB - Since the first clinical studies, knowledge in the field of gene therapy has advanced significantly, and these advances led to the development and subsequent approval of the first gene medicines. Although viral vectors-based products offer efficient gene expression, problems related to their safety and immune response have limited their clinical use. Thus, design and optimization of nonviral vectors is presented as a promising strategy in this scenario. Nonviral systems are nanotechnology-based products composed of polymers or lipids, which are usually biodegradable and biocompatible. Cationic liposomes are the most studied nonviral carriers and knowledge about these systems has greatly evolved, especially in understanding the role of phospholipids and cationic lipids. However, the search for efficient delivery systems aiming at gene therapy remains a challenge. In this context, cationic nanoemulsions have proved to be an interesting approach, as their ability to protect and efficiently deliver nucleic acids for diverse therapeutic applications has been demonstrated. This review focused on cationic nanoemulsions designed for gene therapy, providing an overview on their composition, physicochemical properties, and their efficacy on biological response in vitro and in vivo. PMID- 29038067 TI - Clay minerals: Properties and applications to dermocosmetic products and perspectives of natural raw materials for therapeutic purposes-A review. AB - Clay minerals are layered materials with a number of peculiar properties, which find many relevant applications in various industries. Since they are easily found everywhere, they are particularly attractive due to their economic viability. In the cosmetic industry, clay minerals are often used as excipients to stabilize emulsions or suspensions and to modify the rheological behavior of these systems. They also play an important role as adsorbents or absorbents, not only in cosmetics but also in other industries, such as pharmaceuticals. This reviewer believes that since this manuscript is presented as covering topical applications that include pharmaceuticals, some types of clay minerals should be considered as a potential material to be used as drug delivery systems. We review several applications of clay minerals to dermocosmetic products, relating them to the underlying properties of these materials and exemplifying with a number of clay minerals available in the market. We also discuss the use of clay minerals in topically-applied products for therapeutic purposes, specially for skin treatment and protection. PMID- 29038066 TI - In vitro and preclinical assessment of an intranasal spray formulation of parathyroid hormone PTH 1-34 for the treatment of osteoporosis. AB - Osteoporosis treatment with PTH 1-34 injections significantly reduces the incidence of bone fracture. Potential further reductions in fracture rate should be observed through nasal spray delivery to address the poor compliance associated with patient dislike of repeated PTH 1-34 subcutaneous injections. In vitro human osteoblast-like Saos-2 cell intracellular cAMP levels were used to define PTH 1-34 nasal spray formulation bioactivity. The chemically synthesised PTH 1-34 had an EC50 of 0.76nM. Absorption enhancers polyethylene glycol (15) hydroxystearate (Solutol(r) HS15), poloxamer 407, chitosan or sodium hyaluronate did not diminish the bioactivity of PTH 1-34 within an in vitro cell culture model (p >0.05). We also demonstrated the effectiveness of the transmucosal absorption enhancer Solutol(r) HS15 in a nasal spray formulation using a preclinical pharmacokinetic model. In Sprague-Dawley rats without the absorption enhancer the uptake of PTH 1-34 into the blood via intranasal delivery produced a Cmax of 2.1+/-0.5ng/ml compared to 13.7+/-1.6ng/ml with Solutol(r) HS15 enhancer (p=0.016) and a Cmax14.8+/-8ng/ml in subcutaneous injections. Together these data illustrate that the nasal spray formulation bioactivity in vitro is not affected by the nasal spray absorption enhancers investigated, and the Solutol(r) HS15 nasal spray formulation had an equivalent pharmacokinetic profile to subcutaneous injection in the rat model. The Solutol(r) HS15 formulation therefore demonstrated potential as a PTH 1-34 nasal spray formulation for the treatment of osteoporosis. PMID- 29038068 TI - Polymeric microspheres for the sustained release of a protein-based drug carrier targeting the PDGFbeta-receptor in the fibrotic kidney. AB - Injectable sustained release drug delivery systems are an attractive alternative for the intravenous delivery of therapeutic proteins. In particular, for chronic diseases such as fibrosis, this approach could improve therapy by reducing the administration frequency while avoiding large variations in plasma levels. In fibrotic tissues the platelet-derived growth factor receptor beta (PDGFbetaR) is highly upregulated, which provides a target for site-specific delivery of drugs. Our aim was to develop an injectable sustained release formulation for the subcutaneous delivery of the PDGFbetaR-targeted drug carrier protein pPB-HSA, which is composed of multiple PDGFbetaR-recognizing moieties (pPB) attached to human serum albumin (HSA). We used blends of biodegradable multi-block copolymers with different swelling degree to optimize the release rate using the model protein HSA from microspheres produced via a water-in-oil-in-water double emulsion evaporation process. The optimized formulation containing pPB-HSA, showed complete release in vitro within 14days. After subcutaneous administration to mice suffering from renal fibrosis pPB-HSA was released from the microspheres and distributed into plasma for at least 7days after administration. Furthermore, we demonstrated an enhanced accumulation of pPB-HSA in the fibrotic kidney. Altogether, we show that subcutaneously administered polymeric microspheres present a suitable sustained release drug delivery system for the controlled systemic delivery for proteins such as pPB-HSA. PMID- 29038069 TI - Study protocol and rationale for a randomized double-blinded crossover trial of phentermine-topiramate ER versus placebo to treat binge eating disorder and bulimia nervosa. AB - INTRODUCTION: Bulimia nervosa (BN) and binge eating disorder (BED) are associated with severe psychological and medical consequences. Current therapies are limited, leaving up to 50% of patients symptomatic despite treatment, underscoring the need for additional treatment options. Qsymia, an FDA-approved medication for obesity, combines phentermine and topiramate ER. Topiramate has demonstrated efficacy for both BED and BN, but limited tolerability. Phentermine is FDA-approved for weight loss. A rationale for combined phentermine/topiramate for BED and BN is improved tolerability and efficacy. While a prior case series exploring Qsymia for BED showed promise, randomized studies are needed to evaluate Qsymia's safety and efficacy when re-purposed in eating disorders. We present a study protocol for a Phase I/IIa single-center, prospective, double blinded, randomized, crossover trial examining safety and preliminary efficacy of Qsymia for BED and BN. METHODS: Adults with BED (n=15) or BN (n=15) are randomized 1:1 to receive 12weeks Qsymia (phentermine/topiramate ER, 3.75mg/23mg 15mg/92mg) or placebo, followed by 2-weeks washout and 12-weeks crossover, where those on Qsymia receive placebo and vice versa. Subsequently participants receive 8weeks follow-up off study medications. The primary outcome is the number of binge days/week measured by EDE. Secondary outcomes include average number of binge episodes, percentage abstinence from binge eating, and changes in weight/vitals, eating psychopathology, and mood. DISCUSSION: To our knowledge this is the first randomized, double-blind protocol investigating the safety and efficacy of phentermine/topiramate in BED and BN. We highlight the background and rationale for this study, including the advantages of a crossover design. TRIAL REGISTRATION: Clinicaltrials.gov identifier NCT02553824 registered on 9/17/2015. https://clinicaltrials.gov/ct2/show/NCT02553824. PMID- 29038070 TI - Exploring young women's decisional needs for contraceptive method choice: a qualitative study. AB - OBJECTIVE: Assisting women with choosing contraceptive methods that meet their needs and preferences is essential to providing patient-centered care, but research to inform interventions supporting method choice is lacking. An assessment of patient decisional needs for contraceptive method choice may provide insight into patient-centered ways to support decision making. STUDY DESIGN: Using the Ottawa Decision Support Framework as a guide, we conducted a qualitative study with semistructured interviews to identify women's decisional needs for choosing a contraceptive method. The sample consisted of 21 women aged 18-29 from an integrated health care delivery system. We employed thematic analysis to identify common themes in the participants' experience. RESULTS: Overall, participants perceived choosing a contraceptive method to be a somewhat difficult decision and described feeling hesitant and unsure. Lack of knowledge of and familiarity with methods and the unpredictability of side effects contributed to participants' hesitancy. Women considered method choice in the context of their lives and their values for various contraceptive attributes, particularly side effects. Participants identified several sources for contraceptive information. Information from friends and family was highly influential. Participants desired both factual and experiential information. CONCLUSIONS: Contraceptive method choice may be difficult for many young women, suggesting a need for decision support. Interventions supporting method choice may be more relevant if they directly address knowledge gaps and uncertainty as well as provide both factual and experiential information on a comprehensive set of contraceptive attributes. PMID- 29038071 TI - Contraceptive method use in the United States: trends and characteristics between 2008, 2012 and 2014. AB - OBJECTIVE: The objective was to examine levels of, correlates of and changes in the use of individual and grouped methods of contraception among US females aged 15-44 from 2008 to 2014. STUDY DESIGN: Using three rounds of the National Survey of Family Growth, we analyzed samples of 12,279 (2008), 5601 (2012) and 5699 (2014) females. We conducted simple and multivariable logistic regression analyses to identify associations between demographic characteristics and contraceptive use, as well as between characteristics and changes in use patterns. RESULTS: In terms of overall trends in contraceptive use between 2008 and 2014, there was no significant change in the proportion of women who used a method among either all women (60%) or those at risk of unintended pregnancy (90%). Significant changes in use occurred among six methods. The largest increase in use was among users of long-acting reversible contraceptive (LARC) methods, including the intrauterine device and implant - from 6% to 14% - across almost all population groups of female contraceptive users, while the largest decrease occurred among users of sterilization - from 37% to 28% - with lower income women driving the decline in female sterilization and higher-income women driving the decline in a partner's sterilization as a primary method. Moderate increases were seen in the use of withdrawal and natural family planning. CONCLUSION: Most shifts in recent contraceptive use have occurred among the most effective methods - sterilization and LARCs. Differences in method-specific user characteristics underscore the importance of ensuring full access to the broad range of methods available. IMPLICATIONS: The lack of change in the overall use of contraceptives among women at risk for unintended pregnancy may have implications for the extent to which further declines in national rates of unintended pregnancy can be expected. PMID- 29038072 TI - Amenorrhea rates and predictors during 1 year of levonorgestrel 52 mg intrauterine system use. AB - OBJECTIVE: The objective was to evaluate amenorrhea patterns and predictors of amenorrhea during the first year after levonorgestrel 52 mg intrauterine system (IUS) placement. STUDY DESIGN: This cohort analysis includes 1714 nulliparous and parous women who received a Liletta(r) levonorgestrel 52 mg IUS in a multicenter trial to evaluate efficacy and safety for up to 8 years. Participants maintained a daily diary with bleeding information. We assessed bleeding patterns in 90-day intervals; amenorrhea was defined as no bleeding or spotting in the preceding 90 days. We employed multivariable regression to identify predictors of amenorrhea at 12 months. The predictor analysis only included women not using a levonorgestrel IUS in the month prior to study enrollment. RESULTS: In the month before enrollment, 148 and 1566 women, respectively, had used and not used a levonorgestrel IUS. Prior users averaged 50+/-19 months of use before IUS placement; 38.4% of these women reported amenorrhea at 12 months. Amenorrhea rates for non-prior-users at 3, 6, 9 and 12 months were 0.2%, 9.1%, 17.2% and 16.9%, respectively. During the first 12 months, 29 (1.7%) women discontinued for bleeding irregularities; no women discontinued for amenorrhea. The only significant predictor of amenorrhea at 12 months was self-reported baseline duration of menstrual flow of fewer than 7 days vs. 7 or more days (18.2% vs. 5.2%, adjusted odds ratio 3.70 [1.69, 8.07]). We found no relationships between 12-month amenorrhea rates and age, parity, race, body mass index, baseline flow intensity or hormonal contraception use immediately prior to IUS placement. CONCLUSIONS: Amenorrhea rates during the first year of levonorgestrel 52 mg IUS use are similar at 9 and 12 months. Amenorrhea at 12 months is most common among women with shorter baseline duration of menstrual flow. IMPLICATIONS STATEMENT: This information provides more data for clinicians when counseling women about amenorrhea expectations, especially since women seeking a levonorgestrel 52 mg IUS for contraception are different than women desiring treatment for heavy menstrual bleeding. Amenorrhea at 12 months is most common among women with shorter baseline duration of menstrual flow. PMID- 29038073 TI - Protective role of metallothionein during regeneration in Eisenia andrei exposed to cadmium. AB - Lumbricid earthworms are often exposed to simultaneous action of various environmental stressors like soil contamination, temperature fluctuation or predators' attacks, which may induce extrusion of coelomocyte-containing coelomic fluid or loss of tail segments. If the injuries are not lethal, renewal of the immune-competent cells and soluble components of coelomic fluid and/or the regeneration of tail segments occurs. The aim of our investigations was to test the hypothesis that exposure of adult earthworms Eisenia andrei to cadmium polluted soil at room temperature (RT) and/or low temperature (6 degrees C) have adverse effects on restoration of experimentally depleted coelomocytes or on regeneration of amputated posterior segments. Intact control earthworms and their experimental counterparts subjected to electrostimulation-induced coelomocyte depletion or surgical amputation of posterior segments were maintained either in control soil or in soil spiked with cadmium chloride (500mg/kg air-dried soil) at RT or 6 degrees C. Four weeks after the beginning of experiments, cadmium accumulation in earthworm bodies was significantly lower at 6 degrees C than at room temperature. The numbers of restored cells and fluorophore contents were hardly affected by temperature or cadmium. However, cocoon production was reduced by cadmium and completely abolished at 6 degrees C and regeneration of amputated posterior segments was inhibited in cold but was enhanced by cadmium exposure at RT. Independently on the temperature, the 4-week cadmium exposure of adult earthworms was connected with significantly upregulated expression of Cd metallothionein (but not of catalase, lysenin and phytochelatin) in coelomocytes. PMID- 29038074 TI - Insights from pharmacological similarity of epigenetic targets in epipolypharmacology. AB - As the number of compounds tested against epigenetic targets grows, exploration of the possible associations in chemical space among these targets could lead to the identification of new drugs or new designs of epipolypharmacological molecules. Thus, here we review compound-epitarget associations of public databases. Specifically, we explore the structure-multitarget activity relationships and diversity of over 7000 compounds tested against 52 epigenetic related targets. We found that, whereas inhibitors of histone deacetylases and other epigenetic targets are clustered in the chemical space, the chemical space of inhibitors of different DNA methyltransferases (DNMTs) did not overlap, indicating DNMT selectivity. These and other compound-epitarget relationships discussed here could be useful for both drug repurposing and the rational design of epipolypharmacological compounds. PMID- 29038076 TI - Editorial on Special Issue: Animal models of Tourette syndrome. PMID- 29038075 TI - Biochemical marker discovery, testing and evaluation for facilitating OA drug discovery and development. AB - Osteoarthritis (OA) is the most common form of joint disease. This presents the OA research community and pharmaceutical companies developing disease-modifying OA drugs (DMOADs) with great opportunities. The different OA subtypes complicate the traditional approaches for developing new treatments. If we can identify new markers that can distinguish different subtypes this could greatly facilitate drug development from early discovery to late clinical development. Nevertheless, the current approaches result in poorly targeted treatments and the inability to recruit the right patients for clinical trials. Thus, there is an urgent medical need for objective biomarker tools for patient phenotyping. PMID- 29038077 TI - The Effects of Red Blood Cell Transfusion on Functional Outcome after Aneurysmal Subarachnoid Hemorrhage. AB - BACKGROUND: The optimal red blood cell transfusion (RBCT) trigger for patients with aneurysmal subarachnoid hemorrhage (SAH) is unknown. In patients with cerebral vasospasm, anemia may increase susceptibility to ischemic injury; conversely, RBCT may worsen outcome given known deleterious effects. OBJECTIVE: To examine the association between RBCT, delayed cerebral ischemia (DCI), vasospasm, and outcome after SAH. METHODS: A total of 421 consecutive patients with SAH, admitted to a neurocritical care unit at a university-affiliated hospital and who underwent surgical occlusion of their ruptured aneurysm were retrospectively identified from a prospective observational database. Propensity score methods were used to reduce the bias associated with treatment selection. RESULTS: Two hundred and sixty-one patients (62.0%) received an RBCT. Angiographic vasospasm (odds ratio [OR] 1.6; 95% confidence interval [CI], 1.1 2.3; P = 0.025) but not severe angiographic spasm, DCI, or delayed infarction was associated with RBCT. A total of 283 patients (67.2%) experienced a favorable outcome, defined as good or moderately disabled on the Glasgow Outcome Scale; 47 (11.2%) were severely disabled or vegetative and 91 patients (21.6%) were dead at 6-month follow-up. Among patients who survived >=2 days, RBCT was associated with unfavorable outcome (OR, 2.6; 95% CI, 1.6-4.1). Transfusion of >=3 units of blood was associated with an increased incidence of unfavorable outcome. Propensity analysis to control for the probability of exposure to RBCT conditional on observed covariates measured before RBCT indicates that RBCT is associated with unfavorable outcome in the absence of DCI (OR, 2.17; 95% CI, 1.56-3.01; P < 0.0001) but not when DCI is present (OR, 0.82; 95% CI, 0.35-1.92; P = 0.65). CONCLUSIONS: Blood transfusions are associated with unfavorable outcome after SAH particularly when DCI is absent. Propensity analysis suggests that RBCT may be associated with poor outcome rather than being a marker of disease severity. However, when DCI is present, RBCT may help improve outcome. PMID- 29038078 TI - Predictors of Postoperative Recovery Based on Health-Related Quality of Life in Patients after Degenerative Lumbar Scoliosis Surgery. AB - OBJECTIVE: To investigate the factors associated with the recovery process of elderly patients after degenerative lumbar scoliosis surgery. METHODS: A total of 213 elderly patients who had undergone surgical treatment for degenerative lumbar scoliosis from 2011 to 2015 were included retrospectively in this study. Clinical data and demographics were collected for logistic regression analysis. RESULTS: Among 213 eligible patients, 77 (38.5%) were classified as being in the excellent group, 70 (35%) as showing improvement, 24 (12%) as showing no change, and 29 (14.5%) as having deteriorated. At baseline, patients differed significantly from matched normative data in all Scoliosis Research Society domains. Larger differences from normative values were found for pain and activity domains. After surgery, each domain improved significantly. In the multivariate logistic regression, age 60-70 years (odds ratio [OR], 2.431; 95% confidence interval [CI], 1.143-5.174), and American Society of Anesthesiologists grade <3 (OR, 2.987; 95% CI, 1.519-5.874) may be predictive factors for a satisfying recovery, whereas presence of complications (OR, 0.342; 95% CI, 0.153-0.765), fusion to the sacrum (OR, 0.200; 95% CI, 0.076-0.523), and more osteotomies (OR, 0.360; 95% CI, 0.132-0.985) have negative effects on the recovery process. CONCLUSIONS: The factors that affect postoperative recovery in elderly patients with degenerative lumbar scoliosis are age, American Society of Anesthesiologists grade, distal fusion level, presence of complications, and number of osteotomies. PMID- 29038079 TI - Optical Coherence Tomography in the Management of Skull Base Fibrous Dysplasia with Optic Nerve Involvement. AB - BACKGROUND: Fibrous dysplasia (FD) of the skull base can manifest with optic nerve compression. As most patients initially do not experience vision loss, controversy exists whether to proceed with prophylactic surgical decompression or elect for conservative observation. Optical coherence tomography (OCT), a physiologic imaging modality widely used to assess the condition of the retinal nerve fiber layer (RNFL), has been useful in monitoring compressive tumors on the optic nerve. This study evaluated potential use of OCT in management of patients with fibrous dysplasia and optic nerve involvement. METHODS: Six patients with suspected optic nerve compression who underwent OCT imaging as part of a neuro ophthalmic examination were reviewed over a 2-year period. Patient records were evaluated for visual examination measures, most notably the presence of optic neuropathy, and radiographic measures on computed tomography. Measures were compared by age-adjusted RNFL thickness (above or below fifth percentile) on OCT imaging. RESULTS: Two patients were found to have mild optic neuropathy in 1 eye each. Three of 12 eyes fell below the age-adjusted fifth percentile of RNFL thickness. Presence of optic neuropathy was associated with abnormal age-adjusted RNFL thickness but not with optic nerve compression (P = 0.45). CONCLUSIONS: Abnormal RNFL thickness as measured by OCT better predicted the presence of optic neuropathy than computed tomography alone. OCT may be a valuable imaging modality to monitor patients with fibrous dysplasia for development of optic neuropathy during periods of conservative watchful waiting. PMID- 29038080 TI - A Stent-Retrieving into an Aspiration Catheter with Proximal Balloon (ASAP) Technique: A Technique of Mechanical Thrombectomy. AB - OBJECTIVE: The best technique for the first attempt at mechanical thrombectomy for acute ischemic stroke is a still matter of debate. In this study, we evaluate the efficacy of a stent-retrieving into an aspiration catheter with proximal balloon (ASAP) technique that uses a series of thrombus extraction by withdrawing the stent retriever into the aspiration catheter and continuous aspiration from the aspiration catheter at the first attempt. METHODS: We performed a retrospective analysis of 42 consecutive patients with acute ischemic stroke caused by occlusions in the anterior circulation who were treated with the ASAP technique at our institution. Preoperative patient characteristic, including age, thrombus location, Alberta Stroke Program Early CT Score, National Institutions of Health Stroke Scale, and time from onset to puncture; postoperative Thrombolysis in Cerebral Infarction score; modified Rankin Scale score after 3 months; time from puncture to recanalization; the number of passes to achieve recanalization; and procedural complications, including intracranial hemorrhage, embolization to new territory, and distal embolization, were assessed. RESULTS: A Thrombolysis in Cerebral Infarction score of 2B or 3 was achieved in 40/42 patients (95.2%). Average time from puncture to the final recanalization was 21.5 minutes. Recanalization was achieved in a single attempt in 31 patients (77.5%). Embolization to new territory was observed in only 2 patients (4.8%); no patient developed distal embolization or intracranial hemorrhage including asymptomatic subarachnoid hemorrhage. Thirty-two patients (76.2%) achieved modified Rankin Scale scores of 0-2 at 3 months postoperatively. CONCLUSIONS: Our ASAP technique showed fast recanalization, minimal complications, and good clinical outcomes in this case series. PMID- 29038081 TI - Progressive Functional Underdrainage in Cerebrospinal Fluid Shunt-Dependent Women During Pregnancy: Case Report and Review of the Literature. AB - BACKGROUND: Since the 1950s cerebrospinal fluid (CSF) shunt dependency has no longer been a contradiction to normal life, including sexuality and pregnancy in women, because of advances in the understanding of hydrocephalus and shunt technology. Although pregnancy in shunt-dependent women is rare, it causes uncertainty among treating physicians. CASE DESCRIPTION: We report the case of a 34-year-old pregnant woman with a ventriculoperitoneal shunt. Throughout her pregnancy she experienced progressive symptoms of CSF underdrainage without any signs of other pregnancy-related complications. After the delivery of a healthy infant, shunt resistance had to be readjusted to prepregnancy levels. A comprehensive review of the literature reports in English, listed in PubMed, is provided. CONCLUSIONS: Conservative treatment of pregnancy-related functional underdrainage by consecutive valve pressure adjustment is possible, easy, and safe. PMID- 29038082 TI - Supraorbital Approach for Resection of Clinoidal Meningioma. AB - Meningiomas of the clinoid region pose a formidable surgical challenge. Pterional craniotomy is the traditional approach and is often associated with high-risk postsurgical morbidities. In the current presentation, we describe an elderly male with a clinoidal meningioma who underwent a minimally invasive supraorbital craniotomy for tumor resection. Patient presentation, neuroimaging, and surgical techniques (patient position, incision, anatomic consideration, and surgical steps) are described meticulously. Initial intraoperative steps include dissection via the corridor between the carotid artery and the tentorium, as well as exposing the tumor in the opticocarotid triangle, followed by tumor dissection using microsurgical techniques. Care must be taken to preserve the supraorbital nerve to prevent frontal numbness and avoid violation of the frontal sinus to prevent postoperative cerebrospinal fluid leak. Emphasis on using this minimally invasive procedure for clinoidal meningiomas over the pterional approach for a select cohort of patients is laid, considering the cosmetic merits and adequate extent of tumor resection. PMID- 29038083 TI - Reversible Parkinson-Like Symptoms in Patient with Bilateral Chronic Subdural Hematomas and Cervical Spinal Stenosis. AB - BACKGROUND: Gait abnormalities have been seen in patients with Parkinson disease or Parkinson-like (P-L) disorders and cervical spinal stenosis. Acute presentation of P-L symptoms has been reported in 24 cases caused by chronic subdural hematomas with 11 cases due to bilateral chronic subdural hematomas. When a patient also presents with cervical spinal stenosis, the correct therapeutic decision between P-L disorders and myelopathy is challenging. CASE DESCRIPTION: An 80-year-old male presented with a 2-week history of weakness in his left leg. A few days before presentation, his gait had deteriorated quite dramatically. Neurologic examination showed mild leg weakness, hyperreflexia, and a gait that was slow and wide based, at times festinating but with relatively spared arm movement. He also had masked facial features with increased tone in his extremities. Magnetic resonance imaging of the cervical spine showed cervical stenosis at C5-6, and computed tomography of the head showed large bilateral subdural hematomas. The subdural hematomas were drained. Immediate improvement in his symptoms was observed with complete resolution by his third month of follow up. The patient never had a history of Parkinson disease. CONCLUSIONS: This paper reports for the first time a patient who presented with acute P-L symptoms and cervical myelopathy with findings of both bilateral chronic subdural hematomas and cervical spinal stenosis. The decision to drain the subdural hematoma in our case resulted in full recovery of the patient's gait and other extrapyramidal symptoms. This paper reviews the literature on reversible P-L symptoms caused by bilateral chronic subdural hematomas. PMID- 29038084 TI - Management of Through-and-Through Penetrating Skull Injury: A Railroad Spike That Transgressed the Anterior Skull Base. AB - BACKGROUND: Penetrating injuries involving foreign objects that transgress the entirety of the human skull present challenges in the management of vascular injuries, infectious risk, cerebrospinal fluid leak, and cosmetic repair. Ultimately, effective management of these injuries requires a multidisciplinary team and judicious surgical planning. CASE DESCRIPTION: Here we present the treatment of a patient who experienced a penetrating injury from a railroad spike, with entry and exit points involving the left and right anterior aspects of the temporal fossa, respectively. CONCLUSIONS: The rationale for management decisions is reviewed in the context of the published literature. PMID- 29038085 TI - Outcomes of Two-Isocenter Gamma Knife Radiosurgery for Patients with Typical Trigeminal Neuralgia: Pain Response and Quality of Life. AB - OBJECTIVE: To evaluate the effectiveness and safety of 2-isocenter Gamma Knife surgery (GKS) by reviewing patients with trigeminal neuralgia (TN) from the last 10 years. METHODS: A total of 247 patients were followed up and the Barrow Neurological Institute scale was used to evaluate pain degree. Patients' age, gender, pain duration and location, preoperative/postoperative Barrow Neurological Institute scale score, time to initial pain relief, recurrence time, and complications were documented and analyzed. RESULTS: Patients who underwent a 2-isocenter GKS achieved earlier initial pain relief. The median time of initial pain relief was 2.0 months. Kaplan-Meier analysis showed that the patients with a shorter history of TN and the patients without preoperative surgery achieved earlier initial pain relief. During the 122.8 months of follow-up, the median time of recurrence-free pain relief was 49.7 months. Age was found to be a risk factor of recurrence. Patients who underwent 2-isocenter GKS had a higher rate of postoperative facial numbness, but only 9 cases reported bothersome facial numbness. Multibranch involvement was a risk factor for postoperative facial numbness. CONCLUSIONS: Compared with other modalities, 2-isocenter GKS was a safe and highly effective option for patients with TN. However, more data need to be collected to verify its long-term effect. PMID- 29038087 TI - Integrons in Enterobacteriaceae: diversity, distribution and epidemiology. AB - Integrons are versatile gene acquisition systems that allow efficient capturing of exogenous genes and ensure their expression. Various classes of integrons possessing a wide variety of gene cassettes are ubiquitously distributed in enteric bacteria worldwide. The epidemiology of integrons associated multidrug resistance in Enterobacteriaceae is rapidly evolving. In the past two decades, the incidence of integrons in enteric bacteria has increased drastically with evolution of multiple gene cassettes, novel gene arrangements and complex chromosomal integrons such as Salmonella genomic islands. This review focuses on the distribution, versatility, spread and global trends of integrons among important members of the Enterobacteriaceae, including Escherichia coli, Klebsiella, Shigella and Salmonella, which are known to cause infections globally. Such a comprehensive understanding of integron-associated antibiotic resistance, their role in the spread of such resistance traits and their clinical relevance especially with regard to each genus individually is paramount to contain the global spread of antibiotic resistance. PMID- 29038086 TI - Radiosurgery for Treatment of Renal Cell Metastases to Spine: A Systematic Review of the Literature. AB - BACKGROUND: The incidence of renal cell carcinoma (RCC) continues to increase, and the spine is the most common site for bony metastasis. Radiation therapy is one treatment for spinal RCC metastasis. Stereotactic body radiotherapy (SBRT) is a newer treatment that reportedly has benefits over conventional external beam radiotherapy. This study systematically reviewed the current literature on SBRT for metastatic RCC to spine. METHODS: A search of PubMed, Embase, and Scopus databases was conducted in accordance with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Clinical articles evaluating SBRT for RCC metastases were identified. After inclusion and exclusion criteria were applied, the search resulted in 9 articles. Data including pain outcomes, local control, survival outcomes, vertebral compression fracture (VCF), and toxicity were extracted and evaluated. RESULTS: The studies analyzed showed an improvement in pain in 41%-95% of patients. Local control rates after SBRT ranged 71.2%-85.7% at 1 year, a significant improvement when compared with conventional external beam radiotherapy. The rate of VCF after treatment with SBRT ranged 16% 27.5%, with single-fraction therapy being a risk factor for increased incidence. Overall toxicity rates ranged 23%-38.5%, with only 3 cases of grade 3 toxicity (nausea) and no cases of radiation myelitis. CONCLUSIONS: Use of SBRT for spinal metastasis from RCC resulted in significant local control and pain outcomes. There is a risk of VCF with SBRT; however, treatment seems to be well tolerated with few serious side effects. There is continued need for long-term prospective studies investigating the optimal role of SBRT in the treatment algorithm of RCC spinal metastases. PMID- 29038088 TI - First description of rpsJ and mepA mutations associated with tigecycline resistance in Staphylococcus aureus isolated from a cystic fibrosis patient during antibiotic therapy. PMID- 29038089 TI - Time course and interrelationship of dysrhythmias in patients with surgically repaired atrial septal defect. AB - BACKGROUND: Atrial fibrillation (AF) and other supraventricular tachycardias (SVTs) are known complications after surgical repair of atrial septal defect (ASD), but sinus node dysfunction (SND) and complete atrioventricular conduction block (cAVB) may also occur. OBJECTIVE: The aim of this study was to examine time course and interrelationship of various dysrhythmias in patients with ASD. METHODS: Adult patients (N = 95) with surgically repaired secundum ASD (n = 40), partial atrioventricular septal defect (n = 37) or sinus venosus defect (n = 18), and documented SND, cAVB, AF, and/or other SVT were included. The median age at repair was 13 years (interquartile range [IQR] 6-45 years), and patients were followed for 26 years (IQR 15-37 years) after ASD repair. RESULTS: SND was observed in 34 patients (36%), cAVB in 14 (14%), AF in 48 (49%), and SVT in 44 (45%); 37 patients (39%) had >=2 dysrhythmias. All dysrhythmias presented most often after ASD repair (P < .01), with a median duration of 12 years (IQR 17 days - 32 years) to 16 years (IQR 4 - 28 years) between repair and onset. Development of SND and cAVB late after ASD repair was not related to a redo procedure in 100% and 60% of patients, respectively. SND preceded atrial tachyarrhythmias in 50% (P = .31) and SVT preceded AF in 68% (P = .09) of patients with both dysrhythmias. CONCLUSION: A substantial number of dysrhythmias presented (very) late after ASD repair. In most patients, development of late SND and cAVB was not related to redo procedures. In patients with multiple dysrhythmias, a specific order of appearance was not observed. PMID- 29038090 TI - Variation in DNA-Damage Responses to an Inhalational Carcinogen (1,3-Butadiene) in Relation to Strain-Specific Differences in Chromatin Accessibility and Gene Transcription Profiles in C57BL/6J and CAST/EiJ Mice. AB - BACKGROUND: The damaging effects of exposure to environmental toxicants differentially affect genetically distinct individuals, but the mechanisms contributing to these differences are poorly understood. Genetic variation affects the establishment of the gene regulatory landscape and thus gene expression, and we hypothesized that this contributes to the observed heterogeneity in individual responses to exogenous cellular insults. OBJECTIVES: We performed an in vivo study of how genetic variation and chromatin organization may dictate susceptibility to DNA damage, and influence the cellular response to such damage, caused by an environmental toxicant. MATERIALS AND METHODS: We measured DNA damage, messenger RNA (mRNA) and microRNA (miRNA) expression, and genome-wide chromatin accessibility in lung tissue from two genetically divergent inbred mouse strains, C57BL/6J and CAST/EiJ, both in unexposed mice and in mice exposed to a model DNA-damaging chemical, 1,3-butadiene. RESULTS: Our results showed that unexposed CAST/EiJ and C57BL/6J mice have very different chromatin organization and transcription profiles in the lung. Importantly, in unexposed CAST/EiJ mice, which acquired relatively less 1,3-butadiene-induced DNA damage, we observed increased transcription and a more accessible chromatin landscape around genes involved in detoxification pathways. Upon chemical exposure, chromatin was significantly remodeled in the lung of C57BL/6J mice, a strain that acquired higher levels of 1,3-butadiene-induced DNA damage, around the same genes, ultimately resembling the molecular profile of CAST/EiJ. CONCLUSIONS: These results suggest that strain-specific changes in chromatin and transcription in response to chemical exposure lead to a "compensation" for underlying genetic driven interindividual differences in the baseline chromatin and transcriptional state. This work represents an example of how chemical and environmental exposures can be evaluated to better understand gene-by-environment interactions, and it demonstrates the important role of chromatin response in transcriptomic changes and, potentially, in deleterious effects of exposure. https://doi.org/10.1289/EHP1937. PMID- 29038092 TI - Implications of Attrition in a Longitudinal Web-Based Survey: An Examination of College Students Participating in a Tobacco Use Study. AB - BACKGROUND: Web-based survey research has several benefits, including low cost and burden, as well as high use of the Internet, particularly among young adults. In the context of longitudinal studies, attrition raises concerns regarding the validity of data, given the potential associations with individual and institutional characteristics, or the focal area of study (eg, cigarette use). OBJECTIVES: The objective of this study was to compare baseline characteristics of nonresponders versus responders in a sample of young adult college students in a Web-based longitudinal study regarding tobacco use. METHODS: We conducted a secondary data analysis of 3189 college students from seven Georgia colleges and universities in a 2-year longitudinal study. We examined baseline tobacco use, as well as individual- and institutional-level factors, as predictors of attrition between wave 1 (October and November 2014) and wave 2 (February and March 2015) using multilevel modeling. Results: A total 13.14% (419/3189) participants were lost to follow-up at wave 2. Predictors of nonresponse were similar in the models examining individual-level factors and institutional-level factors only and included being black versus white (odds ratio [OR] 1.74, CI 1.23-2.46); being male versus female (OR 1.41, CI 1.10-1.79); seeking a bachelor's degree versus advanced degree (OR 1.41, CI 1.09-1.83); not residing on campus (OR 0.62, CI 0.46 0.84); past 30-day tobacco use (OR 1.41, CI 1.10-1.78); attending a nonprivate college (OR 0.48, CI 0.33-0.71); and attending a college with <=10,000 students (OR 0.56, CI 0.43-0.73). CONCLUSIONS: Future longitudinal studies should assess predictors of attrition to examine how survey topic and other individual and institutional factors might influence the response to allow for correction of selection bias. PMID- 29038091 TI - Small-Scale Food Animal Production and Antimicrobial Resistance: Mountain, Molehill, or Something in-between? AB - SUMMARY: Small-scale food animal production is widely practiced around the globe, yet it is often overlooked in terms of the environmental health risks. Evidence suggests that small-scale food animal producers often employ the use of antimicrobials to improve the survival and growth of their animals, and that this practice leads to the development of antimicrobial resistance (AMR) that can potentially spread to humans. The nature of human-animal interactions in small scale food animal production systems, generally practiced in and around the home, likely augments spillover events of AMR into the community on a scale that is currently unrecognized and deserves greater attention. https://doi.org/10.1289/EHP2116. PMID- 29038093 TI - Patient Portal Use and Experience Among Older Adults: Systematic Review. AB - BACKGROUND: The older adult population (65 years or older) in the United States is growing, and it is important for communities to consider ways to support the aging population. Patient portals and electronic personal health records (ePHRs) are technologies that could better serve populations with the highest health care needs, such as older adults. OBJECTIVE: The aim of this study was to assess the existing research landscape related to patient portal and ePHR use and experience among older adults and to understand the benefits and barriers to older adults' use and adoption of patient portals and ePHRs. METHODS: We searched six pertinent bibliographic databases for papers, published from 2006 to 2016 and written in English, that focused on adults 60 years or older and their use of or experience with patient portals or ePHRs. We adapted preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines to review papers based on exclusion and inclusion criteria. We then applied thematic analysis to identify key themes around use, experience, and adoption. RESULTS: We retrieved 199 papers after an initial screening and removal of duplicate papers. Then we applied an inclusion and exclusion criteria, resulting in a final set of 17 papers that focused on 15 separate projects. The majority of papers described studies involving qualitative research, including interviews and focus groups. They looked at the experience and use of ePHRs and patient portals. Overall, we found 2 main barriers to use: (1) privacy and security and (2) access to and ability to use technology and the Internet. We found 2 facilitators: (1) technical assistance and (2) family and provider advice. We also reported on older adults' experience, including satisfaction with the system and improvement of the quality of their health care. Several studies captured features that older adults wanted from these systems such as further assistance managing health related tasks and contextual health advice and tips. CONCLUSIONS: More research is needed to better understand the patient portal experience among older adults from initial use to adoption. There are also opportunities to explore the role of design in addressing barriers and supporting facilitators to patient portal and ePHR use. Finally, the future use of these systems by older adults should be anticipated and considered in the design process. PMID- 29038094 TI - Transdiagnostic, Psychodynamic Web-Based Self-Help Intervention Following Inpatient Psychotherapy: Results of a Feasibility Study and Randomized Controlled Trial. AB - BACKGROUND: Mental disorders have become a major health issue, and a substantial number of afflicted individuals do not get appropriate treatment. Web-based interventions are promising supplementary tools for improving health care for patients with mental disorders, as they can be delivered at low costs and used independently of time and location. Although psychodynamic treatments are used frequently in the face-to-face setting, there has been a paucity of studies on psychodynamic Web-based self-help interventions. OBJECTIVE: The objective of this study was to determine the feasibility and preliminary efficacy of a transdiagnostic affect-focused psychodynamic Web-based self-help intervention designed to increase emotional competence of patients with mental disorders. METHODS: A total of 82 psychotherapy inpatients with mixed diagnoses were randomized into two groups. Following discharge, the intervention group (IG) got access to a guided version of the intervention for 10 weeks. After a waiting period of 10 weeks, the wait-list control group (WLCG) got access to an unguided version of the intervention. We reported the assessments at the beginning (T0) and at the end of the intervention, resp. the waiting period (T1). The primary outcome was satisfaction with the treatment at T1. Secondary outcome measures included emotional competence, depression, anxiety, and quality of life. Statistical analyses were performed with descriptive statistics (primary outcome) and analysis of covariance; a repeated measurement analysis of variance was used for the secondary outcomes. Effect sizes were calculated using Cohen d and data were analyzed as per protocol, as well as intention-to-treat (ITT). RESULTS: Patients were chronically ill, diagnosed with multiple diagnoses, most frequently with depression (84%, 58/69), anxiety (68%, 47/69), personality disorder (38%, 26/69), and depersonalization-derealization disorder (22%, 15/69). A majority of the patients (86%, 36/42) logged into the program, of which 86% (31/36) completed the first unit. Satisfaction with the units mastered was rated as good (52%, 16/31) and very good (26%, 9/31). However, there was a steady decline of participation over the course of the program; only 36% of the participants (13/36) participated throughout the trial completing at least 50% of the sessions. According to the ITT analysis, participants improved statistically significantly and with moderate effect sizes (Cohen d) compared with the WLCG regarding depression (d=0.60), quality of life (d=0.53), and emotional competence (d=0.49). Effects were considerably stronger for the completers with respect to depression (d=1.33), quality of life (d=0.83), emotional competence (d=0.68), and general anxiety (d=0.62). CONCLUSIONS: Although overall program satisfaction and benefit of the program were favorable with respect to the indicators of emotional disorders, the rate of completion was low. Our findings point to the need to target the intervention more specifically to the needs and capabilities of participants and to the context of the intervention. TRIAL REGISTRATION: Clinicaltrials.gov NCT02671929; https://clinicaltrials.gov/ct2/show/NCT02671929 (Archived by WebCite at http://www.webcitation.org/6ntWg1yWb). PMID- 29038095 TI - Factors Associated With Engagement With a Web-Based Lifestyle Intervention Following Provision of Coronary Heart Disease Risk: Mixed Methods Study. AB - BACKGROUND: Web-based interventions provide the opportunity to combine the tailored approach of face-to-face interventions with the scalability and cost effectiveness of public health interventions. This potential is often limited by low engagement. A number of studies have described the characteristics of individuals who engage more in Web-based interventions but few have explored the reasons for these variations. OBJECTIVE: We aimed to explore individual-level factors associated with different degrees of engagement with a Web-based behavior change intervention following provision of coronary heart disease (CHD) risk information, and the barriers and facilitators to engagement. METHODS: This study involved the secondary analysis of data from the Information and Risk Modification Trial, a randomized controlled trial of a Web-based lifestyle intervention alone, or alongside information on estimated CHD risk. The intervention consisted of three interactive sessions, each lasting up to 60 minutes, delivered at monthly intervals. Participants were characterized as high engagers if they completed all three sessions. Thematic analysis of qualitative data from interviews with 37 participants was combined with quantitative data on usage of the Web-based intervention using a mixed-methods matrix, and data on the views of the intervention itself were analyzed across all participants. RESULTS: Thirteen participants were characterized as low engagers and 24 as high engagers. There was no difference in age (P=.75), gender (P=.95), or level of risk (P=.65) between the groups. Low engagement was more often associated with: (1) reporting a negative emotional reaction in response to the risk score (P=.029), (2) perceiving that the intervention did not provide any new lifestyle information (P=.011), and (3) being less likely to have reported feeling an obligation to complete the intervention as part of the study (P=.019). The mixed-methods matrix suggested that there was also an association between low engagement and less success with previous behavior change attempts, but the statistical evidence for this association was weak (P=.16). No associations were seen between engagement and barriers or facilitators to health behavior change, or comments about the design of the intervention itself. The most commonly cited barriers related to issues with access to the intervention itself: either difficulties remembering the link to the site or passwords, a perceived lack of flexibility within the website, or lack of time. Facilitators included the nonjudgmental presentation of lifestyle information, the use of simple language, and the personalized nature of the intervention. CONCLUSIONS: This study shows that the level of engagement with a Web-based intervention following provision of CHD risk information is not influenced by the level of risk but by the individual's response to the risk information, their past experiences of behavior change, the extent to which they consider the lifestyle information helpful, and whether they felt obliged to complete the intervention as part of a research study. A number of facilitators and barriers to Web-based interventions were also identified, which should inform future interventions. PMID- 29038096 TI - Raising Awareness About Cervical Cancer Using Twitter: Content Analysis of the 2015 #SmearForSmear Campaign. AB - BACKGROUND: Cervical cancer is the second most common cancer among women under 45 years of age. To deal with the decrease of smear test coverage in the United Kingdom, a Twitter campaign called #SmearForSmear has been launched in 2015 for the European Cervical Cancer Prevention Week. Its aim was to encourage women to take a selfie showing their lipstick going over the edge and post it on Twitter with a raising awareness message promoting cervical cancer screening. The estimated audience was 500 million people. Other public health campaigns have been launched on social media such as Movember to encourage participation and self-engagement. Their result was unsatisfactory as their aim had been diluted to become mainly a social buzz. OBJECTIVE: The objectives of this study were to identify the tweets delivering a raising awareness message promoting cervical cancer screening (sensitizing tweets) and to understand the characteristics of Twitter users posting about this campaign. METHODS: We conducted a 3-step content analysis of the English tweets tagged #SmearForSmear posted on Twitter for the 2015 European Cervical Cancer Prevention Week. Data were collected using the Twitter application programming interface. Their extraction was based on an analysis grid generated by 2 independent researchers using a thematic analysis, validated by a strong Cohen kappa coefficient. A total of 7 themes were coded for sensitizing tweets and 14 for Twitter users' status. Verbatims were thematically and then statistically analyzed. RESULTS: A total of 3019 tweets were collected and 1881 were analyzed. Moreover, 69.96% of tweets had been posted by people living in the United Kingdom. A total of 57.36% of users were women, and sex was unknown in 35.99% of cases. In addition, 54.44% of the users had posted at least one selfie with smeared lipstick. Furthermore, 32.32% of tweets were sensitizing. Independent factors associated with posting sensitizing tweets were women who experienced an abnormal smear test (OR [odds ratio] 13.456, 95% CI 3.101-58.378, P<.001), female gender (OR 3.752, 95% CI 2.133-6.598, P<.001), and people who live in the United Kingdom (OR 2.097, 95% CI 1.447-3.038, P<.001). Nonsensitizing tweets were statistically more posted by a nonhealth or nonmedia company (OR 0.558, 95% CI 0.383-0.814, P<.001). CONCLUSIONS: This study demonstrates that the success of a public health campaign using a social media platform depends on its ability to get its targets involved. It also suggests the need to use social marketing to help its dissemination. The clinical impact of this Twitter campaign to increase cervical cancer screening is yet to be evaluated. PMID- 29038097 TI - Recommending Education Materials for Diabetic Questions Using Information Retrieval Approaches. AB - BACKGROUND: Self-management is crucial to diabetes care and providing expert vetted content for answering patients' questions is crucial in facilitating patient self-management. OBJECTIVE: The aim is to investigate the use of information retrieval techniques in recommending patient education materials for diabetic questions of patients. METHODS: We compared two retrieval algorithms, one based on Latent Dirichlet Allocation topic modeling (topic modeling-based model) and one based on semantic group (semantic group-based model), with the baseline retrieval models, vector space model (VSM), in recommending diabetic patient education materials to diabetic questions posted on the TuDiabetes forum. The evaluation was based on a gold standard dataset consisting of 50 randomly selected diabetic questions where the relevancy of diabetic education materials to the questions was manually assigned by two experts. The performance was assessed using precision of top-ranked documents. RESULTS: We retrieved 7510 diabetic questions on the forum and 144 diabetic patient educational materials from the patient education database at Mayo Clinic. The mapping rate of words in each corpus mapped to the Unified Medical Language System (UMLS) was significantly different (P<.001). The topic modeling-based model outperformed the other retrieval algorithms. For example, for the top-retrieved document, the precision of the topic modeling-based, semantic group-based, and VSM models was 67.0%, 62.8%, and 54.3%, respectively. CONCLUSIONS: This study demonstrated that topic modeling can mitigate the vocabulary difference and it achieved the best performance in recommending education materials for answering patients' questions. One direction for future work is to assess the generalizability of our findings and to extend our study to other disease areas, other patient education material resources, and online forums. PMID- 29038098 TI - Tackling Regional Public Health Issues Using Mobile Health Technology: Event Report of an mHealth Hackathon in Thailand. AB - Hackathons are intense, short, collaborative events focusing on solving real world problems through interdisciplinary teams. This is a report of the mHealth hackathon hosted by Khon Kaen University in collaboration with MIT Sana and faculty members from Harvard Medical School with the aim to improve health care delivery in the Northeast region of Thailand. Key health challenges, such as improving population health literacy, tracking disease trajectory and outcomes among rural communities, and supporting the workflow of overburdened frontline providers, were addressed using mHealth. Many modifications from the usual format of hackathon were made to tailor the event to the local context and culture, such as the process of recruiting participants and how teams were matched and formed. These modifications serve as good learning points for hosting future hackathons. There are also many lessons learned about how to achieve a fruitful collaboration despite cultural barriers, how to best provide mentorship to the participants, how to instill in the participants a sense of mission, and how to match the participants in a fair and efficient manner. This event showcases how interdisciplinary collaboration can produce results that are unattainable by any discipline alone and demonstrates that innovations are the fruits of collective wisdom of people from different fields of expertise who work together toward the same goals. PMID- 29038100 TI - GP who had "wholly inappropriate" relations with patient is struck off. PMID- 29038101 TI - Influence of Intramyocardial Adipose Tissue on the Accuracy of Endocardial Contact Mapping of the Chronic Myocardial Infarction Substrate. AB - BACKGROUND: Recent studies have demonstrated that intramyocardial adipose tissue (IMAT) may contribute to ventricular electrophysiological remodeling in patients with chronic myocardial infarction. Using an ovine model of myocardial infarction, we aimed to determine the influence of IMAT on scar tissue identification during endocardial contact mapping and optimal voltage-based mapping criteria for defining IMAT dense regions. METHOD AND RESULTS: In 7 sheep, left ventricular endocardial and transmural mapping was performed 84 weeks (15 111 weeks) post-myocardial infarction. Spearman rank correlation coefficient was used to assess the relationship between endocardial contact electrogram amplitude and histological composition of myocardium. Receiver operator characteristic curves were used to derive optimal electrogram thresholds for IMAT delineation during endocardial mapping and to describe the use of endocardial mapping for delineation of IMAT dense regions within scar. Endocardial electrogram amplitude correlated significantly with IMAT (unipolar r=-0.48+/-0.12, P<0.001; bipolar r= 0.45+/-0.22, P=0.04) but not collagen (unipolar r=-0.36+/-0.24, P=0.13; bipolar r=-0.43+/-0.31, P=0.16). IMAT dense regions of myocardium reliably identified using endocardial mapping with thresholds of <3.7 and <0.6 mV, respectively, for unipolar, bipolar, and combined modalities (single modality area under the curve=0.80, P<0.001; combined modality area under the curve=0.84, P<0.001). Unipolar mapping using optimal thresholding remained significantly reliable (area under the curve=0.76, P<0.001) during mapping of IMAT, confined to putative scar border zones (bipolar amplitude, 0.5-1.5 mV). CONCLUSIONS: These novel findings enhance our understanding of the confounding influence of IMAT on endocardial scar mapping. Combined bipolar and unipolar voltage mapping using optimal thresholds may be useful for delineating IMAT dense regions of myocardium, in postinfarct cardiomyopathy. PMID- 29038099 TI - Home Blood Pressure Management Intervention in Low- to Middle-Income Countries: Protocol for a Mixed Methods Study. AB - BACKGROUND: Control of hypertension in low- and middle-income countries (LMICs) is poor, often less than 10%. A strong body of evidence demonstrates that home blood pressure management lowers blood pressure, and recent guidelines from the National Institute for Clinical Health and Excellence recommends home blood pressure monitoring. However, the preponderance of data on the benefits of home blood pressure management comes from studies in high-income countries. OBJECTIVE: The objective of the study is to examine whether an intervention of home blood pressure management is feasible in LMICs. Home blood pressure management is defined as self-monitoring of blood pressure and self-titration of antihypertensive medications. We will identify barriers and facilitators of home blood pressure management and explore unique contextual factors in LMICs that influence implementation of home blood pressure management. METHODS: Participants will be recruited from 6 sites from 2015 to 2018. Patients and health care workers will be included. We will use mixed methods including focus groups, interviews, and standardized checklists. When possible, we will adapt materials from prior successful studies so that they are culturally and contextually appropriate. RESULTS: This ongoing study is funded by the World Heart Federation. The information that is obtained will be used to develop a randomized clinical trial of home blood pressure management in LMICs. CONCLUSIONS: The data generated from this qualitative study will provide much needed information from patients and health care workers about barriers and facilitators of home blood pressure management and unique contextual factors that might influence implementation of home blood pressure management in LMICs. PMID- 29038102 TI - ST-Elevation Magnitude Correlates With Right Ventricular Outflow Tract Conduction Delay in Type I Brugada ECG. AB - BACKGROUND: The substrate location and underlying electrophysiological mechanisms that contribute to the characteristic ECG pattern of Brugada syndrome (BrS) are still debated. Using noninvasive electrocardiographical imaging, we studied whole heart conduction and repolarization patterns during ajmaline challenge in BrS individuals. METHODS AND RESULTS: A total of 13 participants (mean age, 44+/-12 years; 8 men), 11 concealed patients with type I BrS and 2 healthy controls, underwent an ajmaline infusion with electrocardiographical imaging and ECG recordings. Electrocardiographical imaging activation recovery intervals and activation timings across the right ventricle (RV) body, outflow tract (RVOT), and left ventricle were calculated and analyzed at baseline and when type I BrS pattern manifested after ajmaline infusion. Peak J-ST point elevation was calculated from the surface ECG and compared with the electrocardiographical imaging-derived parameters at the same time point. After ajmaline infusion, the RVOT had the greatest increase in conduction delay (5.4+/-2.8 versus 2.0+/-2.8 versus 1.1+/-1.6 ms; P=0.007) and activation recovery intervals prolongation (69+/-32 versus 39+/-29 versus 21+/-12 ms; P=0.0005) compared with RV or left ventricle. In controls, there was minimal change in J-ST point elevation, conduction delay, or activation recovery intervals at all sites with ajmaline. In patients with BrS, conduction delay in RVOT, but not RV or left ventricle, correlated to the degree of J-ST point elevation (Pearson R, 0.81; P<0.001). No correlation was found between J-ST point elevation and activation recovery intervals prolongation in the RVOT, RV, or left ventricle. CONCLUSIONS: Magnitude of ST (J point) elevation in the type I BrS pattern is attributed to degree of conduction delay in the RVOT and not prolongation in repolarization time. PMID- 29038103 TI - Large Genomic Rearrangements of Desmosomal Genes in Italian Arrhythmogenic Cardiomyopathy Patients. AB - BACKGROUND: Arrhythmogenic cardiomyopathy (AC) is an inherited heart muscle disease associated with point mutations in genes encoding for cardiac desmosome proteins. Conventional mutation screening is positive in ~50% of probands. Copy number variations (CNVs) have recently been linked to AC pointing to the need to determine the prevalence of CNVs in desmosomal genes and to evaluate disease penetrance by cosegregation analysis in family members. METHODS AND RESULTS: A total of 160 AC genotype-negative probands for 5 AC desmosomal genes by conventional mutation screening underwent multiplex ligation-dependent probe amplification. Nine heterozygous CNVs were identified in 11 (6.9%) of the 160 probands. Five carried a deletion of the entire plakophilin-2 (PKP2) gene, 2 a deletion of only PKP2 exon 4, 1 a deletion of the PKP2 exons 6 to 11, 1 a PKP2 duplication of 5' untranslated region till exon 1, 1 the desmocollin-2 (DSC2) duplication of exons 7 to 9, and 1 a large deletion of chromosome 18 comprising both DSC2 and desmoglein-2 genes. All probands were affected by moderate-severe forms of the disease, whereas 10 (32%) of the 31 family members carrying one of these deletions fulfilled the diagnostic criteria. CONCLUSIONS: Genomic rearrangements were detected in ~7% of AC probands negative for pathogenic point mutations in desmosomal genes, highlighting the potential of CNVs analysis to substantially increase the diagnostic yield of genetic testing. Genotype phenotype correlation demonstrated the presence of the disease in about one third of family members carrying the CNV, underlying the role of other factors in the development and progression of the disease. PMID- 29038105 TI - Letter by Di Marco et al Regarding Article, "Electrical and Structural Substrate of Arrhythmogenic Right Ventricular Cardiomyopathy Determined Using Noninvasive Electrocardiographic Imaging and Late Gadolinium Magnetic Resonance Imaging". PMID- 29038104 TI - Safety of Oral Dofetilide Reloading for Treatment of Atrial Arrhythmias. AB - BACKGROUND: Although dofetilide labeling states that the drug must be initiated or reinitiated with continuous electrocardiographic monitoring and in the presence of trained personnel, the risks of dofetilide reloading justifying repeat hospitalization have not been investigated. METHODS AND RESULTS: Patients admitted for dofetilide reloading for atrial arrhythmias were retrospectively reviewed. The need for dose adjustment and the incidence of torsades de pointes (TdP) were identified. The incidence of TdP in dofetilide reloading was compared with patients admitted for dofetilide initial loading. Of 138 patients admitted for dofetilide reloading for atrial arrhythmias, 102 were reloaded at a previously tolerated dose, 30 with a higher dose from a previously tolerated dose and 2 at a lower dose; prior dosage was unknown in 4 patients. Dose adjustment or discontinuation was required in 44 patients (31.9%). No TdP occurred in the same dose reloading group, but TdP occurred in 2 patients admitted to increase dofetilide dosage (0% versus 6.7%; P=0.050). Dofetilide dose adjustment or discontinuation was required in 30 of 102 patients (29.4%) reloaded at a previously tolerated dose and in 11 of 30 patients (36.7%) admitted for an increase in dose. CONCLUSIONS: Although no TdP occurred in patients admitted to reload dofetilide at the same dose as previously tolerated, dosage adjustments or discontinuation was frequent and support the need for hospitalization for dofetilide reloading. Patients admitted for reloading with a higher dose tended to be at higher risk for TdP than patients reloaded at a prior tolerated dose. PMID- 29038106 TI - Response by Andrews et al to Letter Regarding Article, "Electrical and Structural Substrate of Arrhythmogenic Right Ventricular Cardiomyopathy Determined Using Noninvasive Electrocardiographic Imaging and Late Gadolinium Magnetic Resonance Imaging". PMID- 29038107 TI - Law of Spatial Averaging During Endocardial Voltage Mapping: You Can't Trim Out the Fat! PMID- 29038108 TI - Ajmaline-Induced Slowing of Conduction in the Right Ventricular Outflow Tract Cannot Account for ST Elevation in Patients With Type I Brugada ECG. PMID- 29038109 TI - Unraveling Missing Genes and Missing Inheritance in Arrhythmogenic Cardiomyopathy. PMID- 29038111 TI - What Is New on the Website. PMID- 29038110 TI - Dofetilide Reloaded: To Admit or Not to Admit, That is the Question. PMID- 29038112 TI - Interplay between Microbes and the Circadian Clock. AB - Circadian rhythms influence virtually all life forms on our planet, a notion that opens the question on how the circadian cycles of individual organisms may interplay with each other. In mammals, a potentially dangerous environmental stress is represented by encounters with infectious agents. Microbial attack is a major risk for organismal homeostasis and therefore needs to be efficiently counteracted by mechanisms implemented by the host immune system. Accumulating evidence shows that the immune system may anticipate an emerging pathogenic exposure through an enhanced inflammatory state. Notably, the circadian clock orchestrates these anticipatory responses to fluctuating conditions in the external world. In this article, we review the current knowledge about the relationship between the circadian clock and pathogenic infections. We discuss the role of the circadian clock against infection and specific pathogens, the core clock proteins involved in the defense mechanisms, and the specific tissue or cell type in which they function to counteract the infection. Finally, circadian oscillations in the gut microbiome composition and its possible role in protecting against foodborne pathogen colonization are presented. PMID- 29038114 TI - Inflammasome-Dependent Cytokines at the Crossroads of Health and Autoinflammatory Disease. AB - As key regulators of both innate and adaptive immunity, it is unsurprising that the activity of interleukin (IL)-1 cytokine family members is tightly controlled by decoy receptors, antagonists, and a variety of other mechanisms. Additionally, inflammasome-mediated proteolytic maturation is a prominent and distinguishing feature of two important members of this cytokine family, IL-1beta and IL-18, because their full-length gene products are biologically inert. Although vital in antimicrobial host defense, deregulated inflammasome signaling is linked with a growing number of autoimmune and autoinflammatory diseases. Here, we focus on introducing the diverse inflammasome types and discussing their causal roles in periodic fever syndromes. Therapies targeting IL-1 or IL-18 show great efficacy in some of these autoinflammatory diseases, although further understanding of the molecular mechanisms leading to unregulated production of these key cytokines is required to benefit more patients. PMID- 29038115 TI - The Common Cytokine Receptor gamma Chain Family of Cytokines. AB - Interleukin (IL)-2, IL-4, IL-7, IL-9, IL-15, and IL-21 form a family of cytokines based on their sharing the common cytokine receptor gamma chain (gammac), which was originally discovered as the third receptor component of the IL-2 receptor, IL-2Rgamma. The IL2RG gene is located on the X chromosome and is mutated in humans with X-linked severe combined immunodeficiency (XSCID). The breadth of the defects in XSCID could not be explained solely by defects in IL-2 signaling, and it is now clear that gammac is a shared receptor component of the six cytokines noted above, making XSCID a disease of defective cytokine signaling. Janus kinase (JAK)3 associates with gammac, and JAK3-deficient SCID phenocopies XSCID, findings that served to stimulate the development of JAK3 inhibitors as immunosuppressants. gammac family cytokines collectively control broad aspects of lymphocyte development, growth, differentiation, and survival, and these cytokines are clinically important, related to allergic and autoimmune diseases and cancer as well as immunodeficiency. In this review, we discuss the actions of these cytokines, their critical biological roles and signaling pathways, focusing mainly on JAK/STAT (signal transducers and activators of transcription) signaling, and how this information is now being used in clinical therapeutic efforts. PMID- 29038113 TI - Will Systems Biology Deliver Its Promise and Contribute to the Development of New or Improved Vaccines? From Data to Understanding through Systems Biology. AB - The advent of high-throughput "omics" technologies, combined with the computational and statistical methods necessary to analyze such data, have revolutionized biology, enabling a global view of the complex molecular processes and interactions that occur within a biological system. Such systems-based approaches have begun to be used in the evaluation of immune responses to vaccination, with the promise of identifying predictive biomarkers capable of rapidly evaluating vaccine efficacy, transforming our understanding of the immune mechanisms responsible for protective responses to vaccination and contributing to a new generation of rationally designed vaccines. Here we present our opinion that systems biology does indeed have a critical role in the future of vaccinology. Such approaches have shown potential in identifying transcriptional and cellular signatures of responsiveness to vaccination using diverse vaccines, adjuvants, and human populations. These findings, coupled with further mechanistic evaluation in animal models, will guide development of targeted vaccine and adjuvant formulations designed to optimally induce protective responses in populations of differing immune status. PMID- 29038116 TI - Design Principles of Phosphorylation-Dependent Timekeeping in Eukaryotic Circadian Clocks. AB - The circadian clock in cyanobacteria employs a posttranslational oscillator composed of a sequential phosphorylation-dephosphorylation cycle of KaiC protein, in which the dynamics of protein structural changes driven by temperature compensated KaiC's ATPase activity are critical for determining the period. On the other hand, circadian clocks in eukaryotes employ transcriptional feedback loops as a core mechanism. In this system, the dynamics of protein accumulation and degradation affect the circadian period. However, recent studies of eukaryotic circadian clocks reveal that the mechanism controlling the circadian period can be independent of the regulation of protein abundance. Instead, the circadian substrate is often phosphorylated at multiple sites at flexible protein regions to induce structural changes. The phosphorylation is catalyzed by kinases that induce sequential multisite phosphorylation such as casein kinase 1 (CK1) with temperature-compensated activity. We propose that the design principles of phosphorylation-dependent circadian-period determination in eukaryotes may share characteristics with the posttranslational oscillator in cyanobacteria. PMID- 29038117 TI - Will Systems Biology Deliver Its Promise and Contribute to the Development of New or Improved Vaccines? Systems Biology Views of Vaccine Innate and Adaptive Immunity. AB - During the last decade, several high-throughput technologies have been applied to gather deeper understanding on the biological events elicited by vaccination. The main goal of systems biology is to integrate different sources of data and extract biologically meaningful information. This holistic approach has provided new insights on the impact that the innate immune status has on vaccine responsiveness. Other factors like chronic infections, age, microbiome, and metabolism can influence the outcome of vaccination, and systems biology offers unique opportunities to expand our understanding of their role on the immune response. However, a few challenges that still need to be overcome will be discussed. PMID- 29038118 TI - Introduction to Chronobiology. AB - A diverse range of species, from cyanobacteria to humans, evolved endogenous biological clocks that allow for the anticipation of daily variations in light and temperature. The ability to anticipate regular environmental rhythms promotes optimal performance and survival. Herein we present a brief historical timeline of how circadian concepts and terminology have emerged since the early observation of daily leaf movement in plants made by an astronomer in the 1700s. PMID- 29038120 TI - Will Systems Biology Deliver Its Promise and Contribute to the Development of New or Improved Vaccines? What Really Constitutes the Study of "Systems Biology" and How Might Such an Approach Facilitate Vaccine Design. AB - A dichotomy exists in the field of vaccinology about the promise versus the hype associated with application of "systems biology" approaches to rational vaccine design. Some feel it is the only way to efficiently uncover currently unknown parameters controlling desired immune responses or discover what elements actually mediate these responses. Others feel that traditional experimental, often reductionist, methods for incrementally unraveling complex biology provide a more solid way forward, and that "systems" approaches are costly ways to collect data without gaining true insight. Here I argue that both views are inaccurate. This is largely because of confusion about what can be gained from classical experimentation versus statistical analysis of large data sets (bioinformatics) versus methods that quantitatively explain emergent properties of complex assemblies of biological components, with the latter reflecting what was previously called "physiology." Reductionist studies will remain essential for generating detailed insight into the functional attributes of specific elements of biological systems, but such analyses lack the power to provide a quantitative and predictive understanding of global system behavior. But by employing (1) large-scale screening methods for discovery of unknown components and connections in the immune system (omics), (2) statistical analysis of large data sets (bioinformatics), and (3) the capacity of quantitative computational methods to translate these individual components and connections into models of emergent behavior (systems biology), we will be able to better understand how the overall immune system functions and to determine with greater precision how to manipulate it to produce desired protective responses. PMID- 29038119 TI - Will Systems Biology Deliver Its Promise and Contribute to the Development of New or Improved Vaccines? Seeing the Forest Rather than a Few Trees. AB - Preventing morbidity and mortality from infectious disease through the development and use of effective vaccines is one of medicine's greatest achievements and greatest frustrations. We are struggling with improving vaccine efficacy for some of the most globally widespread diseases, such as malaria and tuberculosis. In an effort to gain an edge, systems biology approaches have begun to be employed to more broadly investigate the pathways leading to protective vaccine responses. As such, we are now at a critical juncture, needing to evaluate how fruitful these approaches have been. Herein we discuss the level of success achieved as compared to the original promise of systems methodologies, and conclude that while we have indeed begun to make clear inroads into understanding the immune response to vaccines, we still have much to learn and gain from the more comprehensive approach of systems-level analysis. PMID- 29038121 TI - Targeting IL-10 Family Cytokines for the Treatment of Human Diseases. AB - Members of the interleukin (IL)-10 family of cytokines play important roles in regulating immune responses during host defense but also in autoimmune disorders, inflammatory diseases, and cancer. Although IL-10 itself primarily acts on leukocytes and has potent immunosuppressive functions, other family members preferentially target nonimmune compartments, such as tissue epithelial cells, where they elicit innate defense mechanisms to control viral, bacterial, and fungal infections, protect tissue integrity, and promote tissue repair and regeneration. As cytokines are prime drug targets, IL-10 family cytokines provide great opportunities for the treatment of autoimmune diseases, tissue damage, and cancer. Yet no therapy in this space has been approved to date. Here, we summarize the diverse biology of the IL-10 family as it relates to human disease and review past and current strategies and challenges to target IL-10 family cytokines for clinical use. PMID- 29038122 TI - Whales, lifespan, phospholipids, and cataracts. AB - This study addresses the question: why do rats get cataracts at 2 years, dogs at 8 years, and whales do not develop cataracts for 200 years? Whale lens lipid phase transitions were compared with the phase transitions of other species that were recalculated. The major phospholipids of the whale lens were sphingolipids, mostly dihydrosphingomyelins with an average molar cholesterol/phospholipid ratio of 10. There was a linear correlation between the percentage of lens sphingolipid and lens lipid hydrocarbon chain order until about 60% sphingolipid. The percentage of lens sphingolipid correlated with the lens lipid phase transition temperature. The lifespan of the bowhead whale was the longest of the species measured and the percentage of whale lens sphingolipid fit well in the correlation between the percentage of lens sphingolipid and lifespan for many species. In conclusion, bowhead whale lens membranes have a high sphingolipid content that confers resistance to oxidation, allowing these lenses to stay clear relatively longer than many other species. The strong correlation between sphingolipid and lifespan may form a basis for future studies, which are needed because correlations do not infer cause. One could hope that if human lenses could be made to have a lipid composition similar to whales, like the bowhead, humans would not develop age-related cataracts for over 100 years. PMID- 29038123 TI - Lactobacillus rhamnosus L34 Attenuates Gut Translocation-Induced Bacterial Sepsis in Murine Models of Leaky Gut. AB - Gastrointestinal (GI) bacterial translocation in sepsis is well known, but the role of Lactobacillus species probiotics is still controversial. We evaluated the therapeutic effects of Lactobacillus rhamnosus L34 in a new sepsis model of oral administration of pathogenic bacteria with GI leakage induced by either an antibiotic cocktail (ATB) and/or dextran sulfate sodium (DSS). GI leakage with ATB, DSS, and DSS plus ATB (DSS+ATB) was demonstrated by fluorescein isothiocyanate (FITC)-dextran translocation to the circulation. The administration of pathogenic bacteria, either Klebsiella pneumoniae or Salmonella enterica serovar Typhimurium, enhanced translocation. Bacteremia was demonstrated within 24 h in 50 to 88% of mice with GI leakage plus the administration of pathogenic bacteria but not with GI leakage induction alone or bacterial gavage alone. Salmonella bacteremia was found in only 16 to 29% and 0% of mice with Salmonella and Klebsiella administrations, respectively. Klebsiella bacteremia was demonstrated in 25 to 33% and 10 to 16% of mice with Klebsiella and Salmonella administrations, respectively. Lactobacillus rhamnosus L34 attenuated GI leakage in these models, as shown by the reductions of FITC-dextran gut translocation, serum interleukin-6 (IL-6) levels, bacteremia, and sepsis mortality. The reduction in the amount of fecal Salmonella bacteria with Lactobacillus treatment was demonstrated. In addition, an anti-inflammatory effect of the conditioned medium from Lactobacillus rhamnosus L34 was also demonstrated by the attenuation of cytokine production in colonic epithelial cells in vitro In conclusion, Lactobacillus rhamnosus L34 attenuated the severity of symptoms in a murine sepsis model induced by GI leakage and the administration of pathogenic bacteria. PMID- 29038124 TI - Plasmodium falciparum PfEMP1 Modulates Monocyte/Macrophage Transcription Factor Activation and Cytokine and Chemokine Responses. AB - Immunity to Plasmodium falciparum malaria is slow to develop, and it is often asserted that malaria suppresses host immunity, although this is poorly understood and the molecular basis for such activity remains unknown. P. falciparum erythrocyte membrane protein 1 (PfEMP1) is a virulence factor that plays a key role in parasite-host interactions. We investigated the immunosuppressive effect of PfEMP1 on monocytes/macrophages, which are central to the antiparasitic innate response. RAW macrophages and human primary monocytes were stimulated with wild-type 3D7 or CS2 parasites or transgenic PfEMP1-null parasites. To study the immunomodulatory effect of PfEMP1, transcription factor activation and cytokine and chemokine responses were measured. The level of activation of NF-kappaB was significantly lower in macrophages stimulated with parasites that express PfEMP1 at the red blood cell surface membrane than in macrophages stimulated with PfEMP1-null parasites. Modulation of additional transcription factors, including CREB, also occurred, resulting in reduced immune gene expression and decreased tumor necrosis factor (TNF) and interleukin-10 (IL 10) release. Similarly, human monocytes released less IL-1beta, IL-6, IL-10, monocyte chemoattractant protein 1 (MCP-1), macrophage inflammatory protein 1alpha (MIP-1alpha), MIP-1beta, and TNF specifically in response to VAR2CSA PfEMP1-containing parasites than in response to PfEMP1-null parasites, suggesting that this immune regulation by PfEMP1 is important in naturally occurring infections. These results indicate that PfEMP1 is an immunomodulatory molecule that affects the activation of a range of transcription factors, dampening cytokine and chemokine responses. Therefore, these findings describe a potential molecular basis for immune suppression by P. falciparum. PMID- 29038125 TI - Modulators of Enterococcus faecalis Cell Envelope Integrity and Antimicrobial Resistance Influence Stable Colonization of the Mammalian Gastrointestinal Tract. AB - The Gram-positive bacterium Enterococcus faecalis is both a colonizer of the gastrointestinal tract (GIT) and an agent of serious nosocomial infections. Although it is typically required for pathogenesis, GIT colonization by E. faecalis is poorly understood. E. faecalis tolerates high concentrations of GIT antimicrobials, like cholate and lysozyme, leading us to hypothesize that resistance to intestinal antimicrobials is essential for long-term GIT colonization. Analyses of E. faecalis mutants exhibiting defects in antimicrobial resistance revealed that IreK, a determinant of envelope integrity and antimicrobial resistance, is required for long-term GIT colonization. IreK is a member of the PASTA kinase protein family, bacterial transmembrane signaling proteins implicated in the regulation of cell wall homeostasis. Among several determinants of cholate and lysozyme resistance in E. faecalis, IreK was the only one found to be required for intestinal colonization, emphasizing the importance of this protein to enterococcal adaptation to the GIT. By studying DeltaireK suppressor mutants that recovered the ability to colonize the GIT, we identified two conserved enterococcal proteins (OG1RF_11271 and OG1RF_11272) that function antagonistically to IreK and interfere with cell envelope integrity, antimicrobial resistance, and GIT colonization. Our data suggest that IreK, through its kinase activity, inhibits the actions of these proteins. IreK, OG1RF_11271, and OG1RF_11272 are found in all enterococci, suggesting that their effect on GIT colonization is universal across enterococci. Thus, we have defined conserved genes in the enterococcal core genome that influence GIT colonization through their effect on enterococcal envelope integrity and antimicrobial resistance. PMID- 29038126 TI - Transcervical Inoculation with Chlamydia trachomatis Induces Infertility in HLA DR4 Transgenic and Wild-Type Mice. AB - Chlamydia trachomatis is the leading cause of infection-induced infertility in women. Attempts to control this epidemic with screening programs and antibiotic therapy have failed. Currently, a vaccine to prevent C. trachomatis infections is not available. In order to develop an animal model for evaluating vaccine antigens that can be applied to humans, we used C. trachomatis serovar D (strain UW-3/Cx) to induce infertility in mice whose major histocompatibility complex class II antigen was replaced with the human leukocyte antigen DR4 (HLA-DR4). Transcervical inoculation of medroxyprogesterone-treated HLA-DR4 transgenic mice with 5 * 105C. trachomatis D inclusion forming units (IFU) induced a significant reduction in fertility, with a mean number of embryos/mouse of 4.4 +/- 1.3 compared to 7.8 +/- 0.5 for the uninfected control mice (P < 0.05). A similar fertility reduction was elicited in the wild-type (WT) C57BL/6 mice (4.3 +/- 1.4 embryos/mouse) compared to the levels of the WT controls (9.1 +/- 0.4 embryos/mouse) (P < 0.05). Following infection, WT mice mounted more robust humoral and cellular immune responses than HLA-DR4 mice. As determined by vaginal shedding, HLA-DR4 mice were more susceptible to a transcervical C. trachomatis D infection than WT mice. To assess if HLA-DR4 transgenic and WT mice could be protected by vaccination, 104 IFU of C. trachomatis D was delivered intranasally, and mice were challenged transcervically 6 weeks later with 5 * 105 IFU of C. trachomatis D. As determined by severity and length of vaginal shedding, WT C57BL/6 and HLA-DR4 mice were significantly protected by vaccination. The advantages and limitations of the HLA-DR4 transgenic mouse model for evaluating human C. trachomatis vaccine antigens are discussed. PMID- 29038127 TI - The Genital Tract Virulence Factor pGP3 Is Essential for Chlamydia muridarum Colonization in the Gastrointestinal Tract. AB - The cryptic plasmid is essential for Chlamydia muridarum dissemination from the genital tract to the gastrointestinal (GI) tract. Following intravaginal inoculation, a C. muridarum strain deficient in plasmid-encoded pGP3 or pGP4 but not pGP5, pGP7, or pGP8 failed to spread to the mouse gastrointestinal tract, although mice infected with these strains developed productive genital tract infections. pGP3- or pGP4-deficient strains also failed to colonize the gastrointestinal tract when delivered intragastrically. pGP4 regulates pGP3, while pGP3 does not affect pGP4 expression, indicating that pGP3 is critical for C. muridarum colonization of the gastrointestinal tract. Mutants deficient in GlgA, a chromosome-encoded protein regulated by pGP4, also consistently colonized the mouse gastrointestinal tract. Interestingly, C. muridarum colonization of the gastrointestinal tract positively correlated with pathogenicity in the upper genital tract. pGP3-deficient C. muridarum strains did not induce hydrosalpinx or spread to the GI tract even when delivered to the oviduct by intrabursal inoculation. Thus, the current study not only has revealed that pGP3 is a novel chlamydial colonization factor in the gastrointestinal tract but also has laid a foundation for investigating the significance of gastrointestinal Chlamydia. PMID- 29038128 TI - Microbial Composition Predicts Genital Tract Inflammation and Persistent Bacterial Vaginosis in South African Adolescent Females. AB - Young African females are at an increased risk of HIV acquisition, and genital inflammation or the vaginal microbiome may contribute to this risk. We studied these factors in 168 HIV-negative South African adolescent females aged 16 to 22 years. Unsupervised clustering of 16S rRNA gene sequences revealed three clusters (subtypes), one of which was strongly associated with genital inflammation. In a multivariate model, the microbiome compositional subtype and hormonal contraception were significantly associated with genital inflammation. We identified 40 taxa significantly associated with inflammation, including those reported previously (Prevotella, Sneathia, Aerococcus, Fusobacterium, and Gemella) as well as several novel taxa (including increased frequencies of bacterial vaginosis-associated bacterium 1 [BVAB1], BVAB2, BVAB3, Prevotella amnii, Prevotella pallens, Parvimonas micra, Megasphaera, Gardnerella vaginalis, and Atopobium vaginae and decreased frequencies of Lactobacillus reuteri, Lactobacillus crispatus, Lactobacillus jensenii, and Lactobacillus iners). Women with inflammation-associated microbiomes had significantly higher body mass indices and lower levels of endogenous estradiol and luteinizing hormone. Community functional profiling revealed three distinct vaginal microbiome subtypes, one of which was characterized by extreme genital inflammation and persistent bacterial vaginosis (BV); this subtype could be predicted with high specificity and sensitivity based on the Nugent score (>=9) or BVAB1 abundance. We propose that women with this BVAB1-dominated subtype may have chronic genital inflammation due to persistent BV, which may place them at a particularly high risk for HIV infection. PMID- 29038129 TI - Native or Proteolytically Activated NanI Sialidase Enhances the Binding and Cytotoxic Activity of Clostridium perfringens Enterotoxin and Beta Toxin. AB - Many Clostridium perfringens strains produce NanI as their major sialidase. Previous studies showed that NanI could potentiate C. perfringens epsilon toxin cytotoxicity by enhancing the binding of this toxin to host cells. The present study first determined that NanI exerts similar cytotoxicity-enhancing effects on C. perfringens enterotoxin and beta toxin, which are also important toxins for C. perfringens diseases (enteritis and enterotoxemia) originating in the gastrointestinal (GI) tract. Building upon previous work demonstrating that purified trypsin can activate NanI activity, this study next determined that purified chymotrypsin or mouse intestinal fluids can also activate NanI activity. Amino acid sequencing then showed that this effect involves the N-terminal processing of the NanI protein. Recombinant NanI (rNanI) species corresponding to major chymotrypsin- or small intestinal fluid-generated NanI fragments possessed more sialidase activity than did full-length rNanI, further supporting the proteolytic activation of NanI activity. rNanI species corresponding to proteolysis products also promoted the cytotoxic activity and binding of enterotoxin and beta toxin more strongly than did full-length rNanI. Since enterotoxin and beta toxin are produced in the intestines during human and animal disease, these findings suggest that intestinal proteases may enhance NanI activity, which in turn could further potentiate the activity of intestinally active toxins during disease. Coupling these new results with previous findings demonstrating that NanI is important for the adherence of C. perfringens to enterocyte-like cells, NanI sialidase is now emerging as a potential auxiliary virulence factor for C. perfringens enteritis and enterotoxemia. PMID- 29038130 TI - Handling time varying confounding in observational research. PMID- 29038131 TI - Risk of infective endocarditis after dental procedures is extremely low. PMID- 29038132 TI - Provider Perspectives of High-Quality Pediatric Hospital-to-Home Transitions for Children and Youth With Chronic Disease. AB - OBJECTIVE: The objective of this study was to describe health care providers' and hospital administrators' perspectives on how to improve pediatric hospital-to home transitions for children and youth with chronic disease (CYCD). METHODS: Focus groups and key informant interviews of inpatient attending physicians, primary care physicians, pediatric residents, nurses, care coordinators, and social workers were conducted at a tertiary care children's hospital. Key informant interviews were performed with hospital administrators. Semistructured questions were used to elicit perceptions of transitional care quality and to identify key structures and processes needed to improve transitional care outcomes. Transcripts of discussions were coded to identify emergent themes. RESULTS: Participants (N = 22) reported that key structures needed to enhance transitional care were a multidisciplinary team, inpatient provider-patient continuity, hospital resource availability, an interoperative electronic health record, and availability of community resources. Key processes needed to achieve high-quality transitional care included setting individualized transition goals, involving parents in care planning, establishing parental competency with home care tasks, and consistently communicating with primary care physicians. Providers identified a lack of reliable roles and processes, insufficient assessment of patient and/or family psychosocial factors, and consistent 2-way communication with community providers as elements to target to improve transitional care outcomes for CYCD. CONCLUSIONS: Many key structures and processes of care perceived as important to achieving high-quality transitional care outcomes for CYCD have the opportunity for improvement at the institution studied. Engaging key stakeholders in designing quality improvement interventions to address these deficits in the current care model may improve transitional care outcomes for this vulnerable population. PMID- 29038133 TI - Did Jules Dejerine describe AMAN at the end of the 19th century? AB - Guillain-Barre syndrome (GBS) is a heterogeneous group of acute immune-mediated neuropathies, including acute inflammatory demyelinating polyneuropathy (AIDP) and acute motor axonal neuropathy (AMAN). AMAN is an axonal subtype of GBS that has been known since the 1990s; this term was first used to describe a summer epidemic of acute ascending paralysis observed in children in northern China (and Mexico). It is pathologically characterized by noninflammatory axonal degeneration of the motor nerves (with little or no demyelination). The French neurologist Jules Dejerine (1849-1917) conducted a clinical and pathologic description of AMAN in the late 19th century. We describe his observations, which provide us with valuable information on the course of pathologic lesions in this disease. PMID- 29038135 TI - Editors' Note. PMID- 29038134 TI - Fatigable ptosis as an initial presentation of adult-onset Leigh syndrome. PMID- 29038136 TI - Letter re: Ischemic Lesions, blood pressure dysregulation, and poor outcomes in intracerebral hemorrhage. PMID- 29038137 TI - Author response: Ischemic Lesions, blood pressure dysregulation, and poor outcomes in intracerebral hemorrhage. PMID- 29038138 TI - Letter re: Efficacy and safety of brivaracetam for partial-onset seizures in 3 pooled clinical studies. PMID- 29038139 TI - Clinical Reasoning: A 46-year-old man with persistent hiccups, cognitive dysfunction, and imbalance. PMID- 29038140 TI - Teaching NeuroImages: Artery of Percheron thrombosis causing selective downgaze palsy. PMID- 29038141 TI - Teaching NeuroImages: Spontaneous involution of symptomatic delayed tumefactive cyst following radiosurgery for AVM. PMID- 29038143 TI - Teaching Video NeuroImages: My weeping patient: Avoiding the pitfalls of a functional diagnosis. PMID- 29038142 TI - Teaching NeuroImages: MR neurography for the diagnosis of hypertrophic neuropathies. PMID- 29038144 TI - Genetic Gain Increases by Applying the Usefulness Criterion with Improved Variance Prediction in Selection of Crosses. AB - A crucial step in plant breeding is the selection and combination of parents to form new crosses. Genome-based prediction guides the selection of high-performing parental lines in many crop breeding programs which ensures a high mean performance of progeny. To warrant maximum selection progress, a new cross should also provide a large progeny variance. The usefulness concept as measure of the gain that can be obtained from a specific cross accounts for variation in progeny variance. Here, it is shown that genetic gain can be considerably increased when crosses are selected based on their genomic usefulness criterion compared to selection based on mean genomic estimated breeding values. An efficient and improved method to predict the genetic variance of a cross based on Markov chain Monte Carlo samples of marker effects from a whole-genome regression model is suggested. In simulations representing selection procedures in crop breeding programs, the performance of this novel approach is compared with existing methods, like selection based on mean genomic estimated breeding values and optimal haploid values. In all cases, higher genetic gain was obtained compared with previously suggested methods. When 1% of progenies per cross were selected, the genetic gain based on the estimated usefulness criterion increased by 0.14 genetic standard deviation compared to a selection based on mean genomic estimated breeding values. Analytical derivations of the progeny genotypic variance-covariance matrix based on parental genotypes and genetic map information make simulations of progeny dispensable, and allow fast implementation in large-scale breeding programs. PMID- 29038145 TI - Oncometabolites: A New Paradigm for Oncology, Metabolism, and the Clinical Laboratory. AB - BACKGROUND: Pediatric clinical laboratories commonly measure tricarboxylic acid cycle intermediates for screening, diagnosis, and monitoring of specific inborn errors of metabolism, such as organic acidurias. In the past decade, the same tricarboxylic acid cycle metabolites have been implicated and studied in cancer. The accumulation of these metabolites in certain cancers not only serves as a biomarker but also directly contributes to cellular transformation, therefore earning them the designation of oncometabolites. CONTENT: D-2-hydroxyglutarate, L 2-hydroxyglutarate, succinate, and fumarate are the currently recognized oncometabolites. They are structurally similar and share metabolic proximity in the tricarboxylic acid cycle. As a result, they promote tumorigenesis in cancer cells through similar mechanisms. This review summarizes the currently understood common and distinct biological features of these compounds. In addition, we will review the current laboratory methodologies that can be used to quantify these metabolites and their downstream targets. SUMMARY: Oncometabolites play an important role in cancer biology. The metabolic pathways that lead to the production of oncometabolites and the downstream signaling pathways that are activated by oncometabolites represent potential therapeutic targets. Clinical laboratories have a critical role to play in the management of oncometabolite associated cancers through development and validation of sensitive and specific assays that measure oncometabolites and their downstream effectors. These assays can be used as screening tools and for follow-up to measure response to treatment, as well as to detect minimal residual disease and recurrence. PMID- 29038148 TI - The Potential and Pitfalls of a Dye-Assisted Paper-Based Assay for Blood Grouping. PMID- 29038147 TI - Imputation of Baseline LDL Cholesterol Concentration in Patients with Familial Hypercholesterolemia on Statins or Ezetimibe. AB - BACKGROUND: Familial hypercholesterolemia (FH) is the most frequent genetic disorder seen clinically and is characterized by increased LDL cholesterol (LDL C) (>95th percentile), family history of increased LDL-C, premature atherosclerotic cardiovascular disease (ASCVD) in the patient or in first-degree relatives, presence of tendinous xanthomas or premature corneal arcus, or presence of a pathogenic mutation in the LDLR, PCSK9, or APOB genes. A diagnosis of FH has important clinical implications with respect to lifelong risk of ASCVD and requirement for intensive pharmacological therapy. The concentration of baseline LDL-C (untreated) is essential for the diagnosis of FH but is often not available because the individual is already on statin therapy. METHODS: To validate a new algorithm to impute baseline LDL-C, we examined 1297 patients. The baseline LDL-C was compared with the imputed baseline obtained within 18 months of the initiation of therapy. We compared the percent reduction in LDL-C on treatment from baseline with the published percent reductions. RESULTS: After eliminating individuals with missing data, nonstandard doses of statins, or medications other than statins or ezetimibe, we provide data on 951 patients. The mean +/- SE baseline LDL-C was 243.0 (2.2) mg/dL [6.28 (0.06) mmol/L], and the mean +/- SE imputed baseline LDL-C was 244.2 (2.6) mg/dL [6.31 (0.07) mmol/L] (P = 0.48). There was no difference in response according to the patient's sex or in percent reduction between observed and expected for individual doses or types of statin or ezetimibe. CONCLUSIONS: We provide a validated estimation of baseline LDL-C for patients with FH that may help clinicians in making a diagnosis. PMID- 29038146 TI - Use of Metabolomics in Improving Assessment of Dietary Intake. AB - BACKGROUND: Nutritional metabolomics is rapidly evolving to integrate nutrition with complex metabolomics data to discover new biomarkers of nutritional exposure and status. CONTENT: The purpose of this review is to provide a broad overview of the measurement techniques, study designs, and statistical approaches used in nutrition metabolomics, as well as to describe the current knowledge from epidemiologic studies identifying metabolite profiles associated with the intake of individual nutrients, foods, and dietary patterns. SUMMARY: A wide range of technologies, databases, and computational tools are available to integrate nutritional metabolomics with dietary and phenotypic information. Biomarkers identified with the use of high-throughput metabolomics techniques include amino acids, acylcarnitines, carbohydrates, bile acids, purine and pyrimidine metabolites, and lipid classes. The most extensively studied food groups include fruits, vegetables, meat, fish, bread, whole grain cereals, nuts, wine, coffee, tea, cocoa, and chocolate. We identified 16 studies that evaluated metabolite signatures associated with dietary patterns. Dietary patterns examined included vegetarian and lactovegetarian diets, omnivorous diet, Western dietary patterns, prudent dietary patterns, Nordic diet, and Mediterranean diet. Although many metabolite biomarkers of individual foods and dietary patterns have been identified, those biomarkers may not be sensitive or specific to dietary intakes. Some biomarkers represent short-term intakes rather than long-term dietary habits. Nonetheless, nutritional metabolomics holds promise for the development of a robust and unbiased strategy for measuring diet. Still, this technology is intended to be complementary, rather than a replacement, to traditional well validated dietary assessment methods such as food frequency questionnaires that can measure usual diet, the most relevant exposure in nutritional epidemiologic studies. PMID- 29038149 TI - Partitioning the Genetic Architecture of Plasma Lipoprotein(a) and Kringle IV Type 2 Repeats: Implications for Therapeutic Lowering. PMID- 29038150 TI - Deep Learning Makes Its Way to the Clinical Laboratory. PMID- 29038151 TI - Obesity and Cancer: Evidence, Impact, and Future Directions. AB - BACKGROUND: Mounting evidence, particularly from prospective epidemiologic studies but with additional support from animal models and mechanistic studies, supported conclusions in 2016 by the International Agency for Research on Cancer (IARC) in their review of the preventive effects of weight control on cancer risk. CONTENT: The workgroup concluded that obesity is causally related to cancer at 13 anatomic sites (esophagus: adenocarcinoma; gastric cardia; colon and rectum; liver; gallbladder; pancreas; breast: postmenopausal; uterine endometrial; ovary; kidney: renal cell; meningioma; thyroid; and multiple myeloma). Further, avoiding weight gain and excess body fat will prevent cancer. Evidence on weight loss and reduction in risk of cancer is more limited. Ongoing clinical trials address the benefits of weight loss interventions after diagnosis. SUMMARY: Here, we review the evidence from the 2016 IARC that obesity is causally related to cancer at 13 anatomic sites and identify areas for future research, including the consequences of childhood adiposity, the relation between velocity of weight gain and cancer risk, and improved methods for analysis of life-course adiposity and cancer risk. Refining understanding of mechanisms may further inform prevention strategies. PMID- 29038152 TI - Harmonization of Viral Load Testing with the First International Standard for BK DNA. PMID- 29038153 TI - Prospective Validation of a Biomarker-Based Rule Out Strategy for Functionally Relevant Coronary Artery Disease. AB - BACKGROUND: This study aimed to prospectively advance a rule-out strategy for functionally significant coronary artery disease (CAD) by use of high-sensitivity cardiac troponin I (hs-cTnI) from bench to bedside, by application of a 3-step approach: validation in serum, correlation in plasma, and application on a clinical platform. METHODS: Patients without known CAD referred for rest/stress myocardial perfusion single-photon emission tomography/computer tomography (MPI SPECT/CT) were assigned to 3 consecutive cohorts: validation, correlation, and application. Functionally relevant CAD was adjudicated with the use of expert interpretation of MPI-SPECT/CT and, if available, coronary angiography. In the validation cohort resting hs-cTnI was measured in serum before stress testing with the research Erenna system, in serum and plasma in the correlation cohort with the research Erenna system, and in plasma in the application cohort with the clinical Clarity system. RESULTS: Overall, functionally relevant CAD was adjudicated in 21% (304/1478) of patients. In the validation cohort (n = 613), hs cTnI concentrations were significantly higher in patients with functionally relevant CAD (median 2.8 ng/L vs 1.9 ng/L, P < 0.001) as compared to patients without functionally relevant CAD and allowed a rule out with 95% sensitivity in 14% of patients. In the correlation cohort (n = 606), hs-cTnI concentrations in serum and plasma strongly correlated (Spearman r = 0.921) and had similar diagnostic accuracy as quantified by the area under the receiver operating characteristic curve (0.686 vs 0.678, P = 0.425). In the application cohort (n = 555), very low hs-cTnI plasma concentrations (< 0.5 ng/L) ruled out functionally relevant CAD with 95% sensitivity in 10% of patients. CONCLUSIONS: A single resting plasma hs-cTnI measurement can safely rule out functionally relevant CAD in around 10% of patients without known CAD. PMID- 29038154 TI - Deactivated CRISPR Associated Protein 9 for Minor-Allele Enrichment in Cell-Free DNA. AB - BACKGROUND: Cell-free DNA (cfDNA) diagnostics are emerging as a new paradigm of disease monitoring and therapy management. The clinical utility of these diagnostics is relatively limited by a low signal-to-noise ratio, such as with low allele frequency (AF) mutations in cancer. While enriching for rare alleles to increase their AF before sample analysis is one strategy that can greatly improve detection capability, current methods are limited in their generalizability, ease of use, and applicability to point mutations. METHODS: Leveraging the robust single-base-pair specificity and generalizability of the CRISPR associated protein 9 (Cas9) system, we developed a deactivated Cas9 (dCas9)-based method of minor-allele enrichment capable of efficient single target and multiplexed enrichment. The dCas9 protein was complexed with single guide RNAs targeted to mutations of interest and incubated with cfDNA samples containing mutant strands at low abundance. Mutation-bound dCas9 complexes were isolated, dissociated, and the captured DNA purified for downstream use. RESULTS: Targeting the 3 most common epidermal growth factor receptor mutations (exon 19 deletion, T790M, L858R) found in non-small cell lung cancer (NSCLC), we achieved >20-fold increases in AF and detected mutations by use of qPCR at an AF of 0.1%. In a cohort of 18 NSCLC patient-derived cfDNA samples, our method enabled detection of 8 out of 13 mutations that were otherwise undetected by qPCR. CONCLUSIONS: The dCas9 method provides an important application of the CRISPR/Cas9 system outside the realm of genome editing and can provide a step forward for the detection capability of cfDNA diagnostics. PMID- 29038155 TI - Objective Metabolomics Research. PMID- 29038156 TI - Human Toxicity Caused by Indole and Indazole Carboxylate Synthetic Cannabinoid Receptor Agonists: From Horizon Scanning to Notification. AB - BACKGROUND: The emergence of novel psychoactive substances (NPS), particularly synthetic cannabinoid receptor agonists (SCRA), has involved hundreds of potentially harmful chemicals in a highly dynamic international market challenging users', clinicians', and regulators' understanding of what circulating substances are causing harm. We describe a toxicovigilance system for NPS that predicted the UK emergence and identified the clinical toxicity caused by novel indole and indazole carboxylate SCRA. METHODS: To assist early accurate identification, we synthesized 5 examples of commercially unavailable indole and indazole carboxylate SCRA (FUB-NPB-22, 5F-NPB-22, 5F-SDB-005, FUB-PB-22, NM 2201). We analyzed plasma and urine samples from 160 patients presenting to emergency departments with severe toxicity after suspected NPS use during 2015 to 2016 for these and other NPS using data-independent LC-MS/MS. RESULTS: We successfully synthesized 5 carboxylate SCRAs using established synthetic and analytical chemistry methodologies. We identified at least 1 SCRA in samples from 49 patients, including an indole or indazole carboxylate SCRA in 17 (35%), specifically 5F-PB-22 (14%), FUB PB-22 (6%), BB-22 (2%), 5F NPB-22 (20%), FUB NPB 22 (2%), and 5F-SDB-005 (4%). In these 17 patients, there was analytical evidence of other substances in 16. Clinical features included agitation and aggression (82%), reduced consciousness (76%), acidosis (47%), hallucinations and paranoid features (41%), tachycardia (35%), hypertension (29%), raised creatine kinase (24%), and seizures (12%). CONCLUSIONS: This toxicovigilance system predicted the emergence of misuse of indole and indazole carboxylate SCRA, documented associated clinical harms, and notified relevant agencies. Toxicity appears consistent with other SCRA, including mental state disturbances and reduced consciousness. PMID- 29038157 TI - Increased Plasma Ferritin Concentration and Low-Grade Inflammation-A Mendelian Randomization Study. AB - BACKGROUND: It is unknown why increased plasma ferritin concentration predicts all-cause mortality. As low-grade inflammation and increased plasma ferritin concentration are associated with all-cause mortality, we hypothesized that increased plasma ferritin concentration is genetically associated with low-grade inflammation. METHODS: We investigated whether increased plasma ferritin concentration is associated with low-grade inflammation [i.e., increased concentrations of C-reactive protein (CRP) and complement component 3 (C3)] in 62537 individuals from the Danish general population. We also applied a Mendelian randomization approach, using the hemochromatosis genotype C282Y/C282Y as an instrument for increased plasma ferritin concentration, to assess causality. RESULTS: For a doubling in plasma ferritin concentration, the odds ratio (95% CI) for CRP >=2 vs <2 mg/L was 1.12 (1.09-1.16), with a corresponding genetic estimate for C282Y/C282Y of 1.03 (1.01-1.06). For a doubling in plasma ferritin concentration, odds ratio (95% CI) for complement C3 >1.04 vs <=1.04 g/L was 1.28 (1.21-1.35), and the corresponding genetic estimate for C282Y/C282Y was 1.06 (1.03-1.12). Mediation analyses showed that 74% (95% CI, 24-123) of the association of C282Y/C282Y with risk of increased CRP and 56% (17%-96%) of the association of C282Y/C282Y with risk of increased complement C3 were mediated through plasma ferritin concentration. CONCLUSIONS: Increased plasma ferritin concentration as a marker of increased iron concentration is associated observationally and genetically with low-grade inflammation, possibly indicating a causal relationship from increased ferritin to inflammation. However, as HFE may also play an immunological role indicating pleiotropy and as incomplete penetrance of C282Y/C282Y indicates buffering mechanisms, these weaknesses in the study design could bias the genetic estimates. PMID- 29038158 TI - Activation of Human Transient Receptor Potential Melastatin-8 (TRPM8) by Calcium Rich Particulate Materials and Effects on Human Lung Cells. AB - To better understand how adverse health effects are caused by exposure to particulate materials, and to develop preventative measures, it is important to identify the properties of particles and molecular targets that link exposure with specific biologic outcomes. Coal fly ash (CFA) is a by-product of coal combustion that can affect human health. We report that human transient receptor potential melastatin-8 (TRPM8) and an N-terminally truncated TRPM8 variant (TRPM8 Delta801) are activated by CFA and calcium-rich nanoparticles and/or soluble salts within CFA. TRPM8 activation by CFA was potentiated by cold temperature involving the phosphatidylinositol 4,5-bisphosphate binding residue (L1008), but was independent of the icilin and menthol binding site residue Y745 and, essentially, the N-terminal amino acids 1-800. CFA, calcium nanoparticles, and calcium salts also activated transient receptor potential vanilloid-1 (TRPV1) and transient receptor potential ankyrin-1 (TRPA1), but not TRPV4. CFA treatment induced CXCL1 and interleukin-8 mRNA in BEAS-2B and primary human bronchial epithelial cells through activation of both TRPM8 and TRPV1. However, neither mouse nor rat TRPM8 was activated by these materials, and Trpm8 knockout had no effect on cytokine induction in the lungs of CFA-instilled mice. Amino acids S921 and S927 in mouse Trpm8 were identified as important for the lack of response to CFA. These results imply that TRPM8, in conjunction with TRPV1 and TRPA1, might sense selected forms of inhaled particulate materials in human airways, shaping cellular responses to these materials, and improving our understanding of how and why certain particulate materials elicit different responses in biologic systems, affecting human health. PMID- 29038159 TI - Loss of Extracellular Signal-Regulated Kinase 1/2 in the Retinal Pigment Epithelium Leads to RPE65 Decrease and Retinal Degeneration. AB - Recent work suggested that the activity of extracellular signal-regulated kinase 1/2 (ERK1/2) is increased in the retinal pigment epithelium (RPE) of age-related macular degeneration (ARMD) patients and therefore could be an attractive therapeutic target. Notably, ERK1/2 pathway inhibitors are used in cancer therapy, with severe and noncharacterized ocular side effects. To decipher the role of ERK1/2 in RPE cells, we conditionally disrupted the Erk1 and Erk2 genes in mouse RPE. The loss of ERK1/2 activity resulted in a significant decrease in the level of RPE65 expression, a decrease in ocular retinoid levels concomitant with low visual function, and a rapid disorganization of RPE cells, ultimately leading to retinal degeneration. Our results identify the ERK1/2 pathway as a direct regulator of the visual cycle and a critical component of the viability of RPE and photoreceptor cells. Moreover, our results caution about the need for a very fine adjustment of kinase inhibition in cancer or ARMD treatment in order to avoid ocular side effects. PMID- 29038160 TI - A High-Resolution Genome-Wide CRISPR/Cas9 Viability Screen Reveals Structural Features and Contextual Diversity of the Human Cell-Essential Proteome. AB - To interrogate genes essential for cell growth, proliferation and survival in human cells, we carried out a genome-wide clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9 screen in a B-cell lymphoma line using a custom extended-knockout (EKO) library of 278,754 single-guide RNAs (sgRNAs) that targeted 19,084 RefSeq genes, 20,852 alternatively spliced exons, and 3,872 hypothetical genes. A new statistical analysis tool called robust analytics and normalization for knockout screens (RANKS) identified 2,280 essential genes, 234 of which were unique. Individual essential genes were validated experimentally and linked to ribosome biogenesis and stress responses. Essential genes exhibited a bimodal distribution across 10 different cell lines, consistent with a continuous variation in essentiality as a function of cell type. Genes essential in more lines had more severe fitness defects and encoded the evolutionarily conserved structural cores of protein complexes, whereas genes essential in fewer lines formed context-specific modules and encoded subunits at the periphery of essential complexes. The essentiality of individual protein residues across the proteome correlated with evolutionary conservation, structural burial, modular domains, and protein interaction interfaces. Many alternatively spliced exons in essential genes were dispensable and were enriched for disordered regions. Fitness defects were observed for 44 newly evolved hypothetical reading frames. These results illuminate the contextual nature and evolution of essential gene functions in human cells. PMID- 29038161 TI - Mechanistic Differences in Transcription Initiation at TATA-Less and TATA Containing Promoters. AB - A yeast in vitro system was developed that is active for transcription at both TATA-containing and TATA-less promoters. Transcription with extracts made from cells depleted of TFIID subunit Taf1 demonstrated that promoters of both classes are TFIID dependent, in agreement with recent in vivo findings. TFIID depletion can be complemented in vitro by additional recombinant TATA binding protein (TBP) at only the TATA-containing promoters. In contrast, high levels of TBP did not complement Taf1 depletion in vivo and instead repressed transcription from both promoter types. We also demonstrate the importance of the TATA-like sequence found at many TATA-less promoters and describe how the presence or absence of the TATA element is likely not the only feature that distinguishes these two types of promoters. PMID- 29038162 TI - Systematic analysis of human cells lacking ATG8 proteins uncovers roles for GABARAPs and the CCZ1/MON1 regulator C18orf8/RMC1 in macro and selective autophagic flux. AB - Selective and macro autophagy sequester specific organelles/substrates or bulk cytoplasm, respectively, inside autophagosomes as cargo for delivery to lysosomes. The mammalian ATG8 orthologues (MAP1LC3A/B/C and GABARAP/L1/L2) are ubiquitin (UB)-like proteins conjugated to the autophagosome membrane and are thought to facilitate cargo receptor recruitment, vesicle maturation, and lysosomal fusion. To elucidate the molecular functions of the ATG8 proteins, we engineered cells lacking genes for each subfamily as well as all six mammalian ATG8s. Loss of GABARAPs alone attenuates autophagic flux basally and in response to macro or selective autophagic stimuli including PARKIN-dependent mitophagy, and cells lacking all ATG8 proteins accumulate cytoplasmic UB aggregates, which are resolved following ectopic expression of individual GABARAPs. Autophagosomes from cells lacking GABARAPs had reduced lysosomal content by quantitative proteomics, consistent with fusion defects, but accumulated regulators of late endosome (LE)/autophagosome maturation. Through interaction proteomics of proteins accumulating in GABARAP/L1/L2-deficient cells, we identified C18orf8/RMC1 as a new subunit of the CCZ1-MON1 RAB7 guanine exchange factor (GEF) that positively regulates RAB7 recruitment to LE/autophagosomes. This work defines unique roles for GABARAP and LC3 subfamilies in macro and selective autophagy and demonstrates how analysis of autophagic machinery in the absence of flux can identify new regulatory circuits. PMID- 29038163 TI - Corrected and Republished from: BCL11A Is a Critical Component of a Transcriptional Network That Activates RAG Expression and V(D)J Recombination. AB - Recombination activating gene 1 (RAG1) and RAG2 are critical enzymes for initiating variable-diversity-joining [V(D)J] segment recombination, an essential process for antigen receptor expression and lymphocyte development. The BCL11A transcription factor is required for B cell and plasmacytoid dendritic cell (pDC) development, but its molecular function(s) in early B cell fate specification and commitment is unknown. We show here that the major B cell isoform, BCL11A-XL, binds directly to the RAG1 promoter as well as directly to regulatory regions of transcription factors previously implicated in both B cell and pDC development to activate RAG1 and RAG2 gene transcription in pro- and pre-B cells. We employed BCL11A overexpression with recombination substrates to demonstrate direct consequences of BCL11A/RAG modulation on V(D)J recombination. We conclude that BCL11A is a critical component of a transcriptional network that regulates B cell fate by controlling V(D)J recombination. PMID- 29038165 TI - Authors' reply to Baker and Alderson. PMID- 29038166 TI - Why and how to step down chronic asthma drugs. AB - Asthma is a common chronic airways disease. The goal of asthma management is to control symptoms while minimizing the side effects of treatment. Following a period of stable asthma, clinicians should consider stepping down treatment. This approach is recommended by current guidelines. Step-down has been studied for several types of asthma drug regimens, and certain approaches may have lower risk than others. Systematic reviews of multiple trials support the following specific step-down approaches: optimizing inhaled corticosteroid dosing when stepping down oral corticosteroid, reducing inhaled corticosteroid from a higher dose, lowering inhaled corticosteroid-long acting bronchodilator (ICS-LABA) dose while adding ICS-LABA on-demand, adding leukotriene receptor antagonist (LTRA) while lowering inhaled corticosteroid dose, and using allergen immunotherapy when reducing inhaled corticosteroid from a higher dose. Systematic reviews of multiple trials support an increased risk of asthma exacerbation for patients who completely stop taking inhaled corticosteroid or long acting bronchodilator. Strategies to implement step-down in practice include the use of risk prediction as well as tools to support shared decision making and communication about risk between clinicians and patients. PMID- 29038164 TI - Protein Kinase A/CREB Signaling Prevents Adriamycin-Induced Podocyte Apoptosis via Upregulation of Mitochondrial Respiratory Chain Complexes. AB - Previous work showed that the activation of protein kinase A (PKA) signaling promoted mitochondrial fusion and prevented podocyte apoptosis. The cAMP response element binding protein (CREB) is the main downstream transcription factor of PKA signaling. Here we show that the PKA agonist 8-(4-chlorophenylthio)adenosine 3',5'-cyclic monophosphate-cyclic AMP (pCPT-cAMP) prevented the production of adriamycin (ADR)-induced reactive oxygen species and apoptosis in podocytes, which were inhibited by CREB RNA interference (RNAi). The activation of PKA enhanced mitochondrial function and prevented the ADR-induced decrease of mitochondrial respiratory chain complex I subunits, NADH-ubiquinone oxidoreductase complex (ND) 1/3/4 genes, and protein expression. Inhibition of CREB expression alleviated pCPT-cAMP-induced ND3, but not the recovery of ND1/4 protein, in ADR-treated podocytes. In addition, CREB RNAi blocked the pCPT-cAMP induced increase in ATP and the expression of peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC1-alpha). The chromatin immunoprecipitation assay showed enrichment of CREB on PGC1-alpha and ND3 promoters, suggesting that these promoters are CREB targets. In vivo, both an endogenous cAMP activator (isoproterenol) and pCPT-cAMP decreased the albumin/creatinine ratio in mice with ADR nephropathy, reduced glomerular oxidative stress, and retained Wilm's tumor suppressor gene 1 (WT-1)-positive cells in glomeruli. We conclude that the upregulation of mitochondrial respiratory chain proteins played a partial role in the protection of PKA/CREB signaling. PMID- 29038168 TI - Fasting Versus Nonfasting and Low-Density Lipoprotein Cholesterol Accuracy. AB - BACKGROUND: Recent recommendations favoring nonfasting lipid assessment may affect low-density lipoprotein cholesterol (LDL-C) estimation. The novel method of LDL-C estimation (LDL-CN) uses a flexible approach to derive patient-specific ratios of triglycerides to very low-density lipoprotein cholesterol. This adaptability may confer an accuracy advantage in nonfasting patients over the fixed approach of the classic Friedewald method (LDL-CF). METHODS: We used a US cross-sectional sample of 1 545 634 patients (959 153 fasting >=10-12 hours; 586 481 nonfasting) from the second harvest of the Very Large Database of Lipids study to assess for the first time the impact of fasting status on novel LDL-C accuracy. Rapid ultracentrifugation was used to directly measure LDL-C content (LDL-CD). Accuracy was defined as the percentage of LDL-CD falling within an estimated LDL-C (LDL-CN or LDL-CF) category by clinical cut points. For low estimated LDL-C (<70 mg/dL), we evaluated accuracy by triglyceride levels. The magnitude of absolute and percent differences between LDL-CD and estimated LDL-C (LDL-CN or LDL-CF) was stratified by LDL-C and triglyceride categories. RESULTS: In both fasting and nonfasting samples, accuracy was higher with the novel method across all clinical LDL-C categories (range, 87%-94%) compared with the Friedewald estimation (range, 71%-93%; P<=0.001). With LDL-C <70 mg/dL, nonfasting LDL-CN accuracy (92%) was superior to LDL-CF accuracy (71%; P<0.001). In this LDL-C range, 19% of fasting and 30% of nonfasting patients had differences >=10 mg/dL between LDL-CF and LDL-CD, whereas only 2% and 3% of patients, respectively, had similar differences with novel estimation. Accuracy of LDL-C <70 mg/dL further decreased as triglycerides increased, particularly for Friedewald estimation (range, 37%-96%) versus the novel method (range, 82%-94%). With triglycerides of 200 to 399 mg/dL in nonfasting patients, LDL-CN <70 mg/dL accuracy (82%) was superior to LDL-CF (37%; P<0.001). In this triglyceride range, 73% of fasting and 81% of nonfasting patients had >=10 mg/dL differences between LDL-CF and LDL-CD compared with 25% and 20% of patients, respectively, with LDL CN. CONCLUSIONS: Novel adaptable LDL-C estimation performs better in nonfasting samples than the fixed Friedewald estimation, with a particular accuracy advantage in settings of low LDL-C and high triglycerides. In addition to stimulating further study, these results may have immediate relevance for guideline committees, laboratory leadership, clinicians, and patients. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT01698489. PMID- 29038167 TI - Sex Differences and Similarities in Atrial Fibrillation Epidemiology, Risk Factors, and Mortality in Community Cohorts: Results From the BiomarCaRE Consortium (Biomarker for Cardiovascular Risk Assessment in Europe). AB - BACKGROUND: Atrial fibrillation (AF) is a common cardiac disease in aging populations with high comorbidity and mortality. Sex differences in AF epidemiology are insufficiently understood. METHODS: In N=79 793 individuals without AF diagnosis at baseline (median age, 49.6 years; age range, 24.1-97.6 years; 51.7% women) from 4 community-based European studies (FINRISK, DanMONICA, Moli-sani Northern Sweden) of the BiomarCaRE consortium (Biomarker for Cardiovascular Risk Assessment in Europe), we examined AF incidence, its association with mortality, common risk factors, biomarkers, and prevalent cardiovascular disease, and their attributable risk by sex. Median follow-up time was 12.6 (to a maximum of 28.2) years. RESULTS: Fewer AF cases were observed in women (N=1796; 4.4%), than in men (N=2465; 6.4%). Cardiovascular risk factor distribution and lipid profile at baseline were less beneficial in men than in women, and cardiovascular disease was more prevalent in men. Cumulative incidence increased markedly after the age of 50 years in men and after 60 years in women. The lifetime risk was similar (>30%) for both sexes. Subjects with incident AF had a 3.5-fold risk of death in comparison with those without AF. Multivariable adjusted models showed sex differences for the association of body mass index and AF (hazard ratio per standard deviation increase, 1.18; 95% confidence interval [CI], 1.12-1.23 in women versus 1.31; 95% CI 1.25-1.38 in men; interaction P value of 0.001). Total cholesterol was inversely associated with incident AF with a greater risk reduction in women (hazard ratio per SD, 0.86; 95% CI, 0.81-0.90 versus 0.92; 95% CI, 0.88-0.97 in men; interaction P value of 0.023). No sex differences were seen for C-reactive protein and N-terminal pro B-type natriuretic peptide. The population-attributable risk of all risk factors combined was 41.9% in women and 46.0% in men. About 20% of the risk was observed for body mass index. CONCLUSIONS: Lifetime risk of AF was high, and AF was strongly associated with increased mortality both in women and men. Body mass index explained the largest proportion of AF risk. Observed sex differences in the association of body mass index and total cholesterol with AF need to be evaluated for underlying pathophysiology and relevance to sex-specific prevention strategies. PMID- 29038169 TI - Low-Dose Exposure to Ionizing Radiation Deregulates the Brain-Specific MicroRNA 134 in Interventional Cardiologists. PMID- 29038171 TI - Margaret McCartney: Hydration, common sense, and evidence. PMID- 29038170 TI - Dissecting Nucleosome Function with a Comprehensive Histone H2A and H2B Mutant Library. AB - Using a comprehensive library of histone H2A and H2B mutants, we assessed the biological function of each amino acid residue involved in various stress conditions including exposure to different DNA damage-inducing reagents, different growth temperatures, and other chemicals. H2B N- and H2A C-termini were critical for maintaining nucleosome function and mutations in these regions led to pleiotropic phenotypes. Additionally, two screens were performed using this library, monitoring heterochromatin gene silencing and genome stability, to identify residues that could compromise normal function when mutated. Many distinctive regions within the nucleosome were revealed. Furthermore, we used the barcode sequencing (bar-seq) method to profile the mutant composition of many libraries in one high-throughput sequencing experiment, greatly reducing the labor and increasing the capacity. This study not only demonstrates the applications of the versatile histone library, but also reveals many previously unknown functions of histone H2A and H2B. PMID- 29038172 TI - Precision Medicine for Cardiac Resynchronization: Predicting Quality of Life Benefits for Individual Patients-An Analysis From 5 Clinical Trials. AB - BACKGROUND: Clinical trials have established the average benefit of cardiac resynchronization therapy (CRT), but estimating benefit for individual patients remains difficult because of the heterogeneity in treatment response. Accordingly, we created a multivariable model to predict changes in quality of life (QoL) with and without CRT. METHODS AND RESULTS: Patient-level data from 5 randomized trials comparing CRT with no CRT were used to create a prediction model of change in QoL at 3 months using a partial proportional odds model for no change, small, moderate, and large improvement, or deterioration of any magnitude. The C statistics for not worsening or obtaining at least a small, moderate, and large improvement were calculated. Among the 3614 patients, regardless of assigned treatment, 33.3% had a deterioration in QoL, 9.2% had no change, 9.2% had a small improvement, 13.5% had a moderate improvement, and the remaining 34.9% had a large improvement. Patients undergoing CRT were less likely to have a decrement in their QoL (28.2% versus 38.9%; P<0.001) and more likely to have a large QoL improvement (38.7% versus 30.6%; P<0.001). A partial proportional odds model identified baseline QoL, age, and an interaction of CRT with QRS duration as predictors of QoL benefits 3 months after randomization. C statistics of 0.65 for not worsening, 0.68 for at least a small improvement, 0.69 for at least a moderate improvement, and 0.73 for predicting a large improvement were observed. CONCLUSIONS: There is marked heterogeneity of treatment benefit of CRT that can be predicted based on baseline QoL, age, and QRS duration. PMID- 29038173 TI - Combinatorial regulation of the balance between dynein microtubule end accumulation and initiation of directed motility. AB - Cytoplasmic dynein is involved in a multitude of essential cellular functions. Dynein's activity is controlled by the combinatorial action of several regulatory proteins. The molecular mechanism of this regulation is still poorly understood. Using purified proteins, we reconstitute the regulation of the human dynein complex by three prominent regulators on dynamic microtubules in the presence of end binding proteins (EBs). We find that dynein can be in biochemically and functionally distinct pools: either tracking dynamic microtubule plus-ends in an EB-dependent manner or moving processively towards minus ends in an adaptor protein-dependent manner. Whereas both dynein pools share the dynactin complex, they have opposite preferences for binding other regulators, either the adaptor protein Bicaudal-D2 (BicD2) or the multifunctional regulator Lissencephaly-1 (Lis1). BicD2 and Lis1 together control the overall efficiency of motility initiation. Remarkably, dynactin can bias motility initiation locally from microtubule plus ends by autonomous plus-end recognition. This bias is further enhanced by EBs and Lis1. Our study provides insight into the mechanism of dynein regulation by dissecting the distinct functional contributions of the individual members of a dynein regulatory network. PMID- 29038174 TI - Tumor-associated macrophages (TAMs) depend on ZEB1 for their cancer-promoting roles. AB - Accumulation of tumor-associated macrophages (TAMs) associates with malignant progression in cancer. However, the mechanisms that drive the pro-tumor functions of TAMs are not fully understood. ZEB1 is best known for driving an epithelial-to mesenchymal transition (EMT) in cancer cells to promote tumor progression. However, a role for ZEB1 in macrophages and TAMs has not been studied. Here we describe that TAMs require ZEB1 for their tumor-promoting and chemotherapy resistance functions in a mouse model of ovarian cancer. Only TAMs that expressed full levels of Zeb1 accelerated tumor growth. Mechanistically, ZEB1 expression in TAMs induced their polarization toward an F4/80low pro-tumor phenotype, including direct activation of Ccr2 In turn, expression of ZEB1 by TAMs induced Ccl2, Cd74, and a mesenchymal/stem-like phenotype in cancer cells. In human ovarian carcinomas, TAM infiltration and CCR2 expression correlated with ZEB1 in tumor cells, where along with CCL2 and CD74 determined poorer prognosis. Importantly, ZEB1 in TAMs was a factor of poorer survival in human ovarian carcinomas. These data establish ZEB1 as a key factor in the tumor microenvironment and for maintaining TAMs' tumor-promoting functions. PMID- 29038175 TI - Predictability of Recurrence using Immunohistochemistry to delineate Surgical Margins in mucosal Head and Neck Squamous Cell Carcinoma (PRISM-HNSCC): study protocol for a prospective, observational and bilateral study in Australia and India. AB - OBJECTIVES: Treatment failure and poor 5-year survival in mucosal head and neck squamous cell carcinoma (HNSCC) has remained unchanged for decades mainly due to advanced stage of presentation and high rates of recurrence. Incomplete surgical removal of the tumour, attributed to lack of reliable methods to delineate the surgical margins, is a major cause of disease recurrence. The predictability of recurrence using immunohistochemistry (IHC) to delineate surgical margins (PRISM) in mucosal HNSCC study aims to redefine margin status by identifying the true extent of the tumour at the molecular level by performing IHC with molecular markers, eukaryotic initiation factor, eIF4Eand tumour suppressor gene, p53, on the surgical margins and test the use of Lugol's iodine and fluorescence visualisation prior to the wide local excision. This article describes the study protocol at its pre - results stage. METHODS AND ANALYSIS: PRISM-HNSCC is a bilateral observational research being conducted in Darwin, Australia and Vellore, India. Individuals diagnosed with HNSCC will undergo the routine wide local excision of the tumour followed by histopathological assessment. Tumours with clear surgical margins that satisfy the exclusion criteria will be selected for further staining of the margins with eIF4E and p53 antibodies. Results of IHC staining will be correlated with recurrences in an attempt to predict the risk of disease recurrence. Patients in Darwin will undergo intraoperative staining of the lesion with Lugol's iodine and fluorescence visualisation to delineate the excision margins while patients in Vellore will not undertake these tests. The outcomes will be analysed. ETHICS AND DISSEMINATION: The PRISM-HNSCC study was approved by the institutional ethics committees in Darwin (Human Research Ethics Committee 13-2036) and Vellore (Institutional Review Board Min. no. 8967). Outcomes will be disseminated through publications in academic journals and presentations at educational meetings and conferences. It will be presented as dissertation at the Charles Darwin University. We will communicate the study results to both participating sites. Participating sites will communicate results with patients who have indicated an interest in knowing the results. TRIAL REGISTRATION NUMBER: Australian New Zealand Clinical Trials Registry (ACTRN12616000715471). PMID- 29038176 TI - Maternal body mass index and the prevalence of spontaneous and elective preterm deliveries in an Irish obstetric population: a retrospective cohort study. AB - OBJECTIVE: To estimate the association between maternal body mass index (BMI) and risk of spontaneous preterm delivery (sPTD) and elective preterm delivery (ePTD) in singleton and multiple pregnancies. DESIGN: Retrospective cohort study. SETTING: Electronic records of all deliveries from 2009 through 2013 in a tertiary university hospital were abstracted for demographic and obstetrical information. PARTICIPANTS: A total of 38 528 deliveries were included. Participants with missing data were excluded from the study. BMI was calculated from the measurement of height and weight at the first prenatal visit and categorised. Sonographic confirmation of gestational age was standard. OUTCOME MEASURES: Primary outcomes, sPTD and ePTD in singleton and multiple pregnancies, were evaluated by multinomial logistic regression analyses, stratified by parity, controlling for confounding variables. RESULTS: Overall rate of PTD was 5.9%, from which 2.7% were sPTD and 3.2% ePTD. The rate of PTD was 50.4% in multiple pregnancies and 5.0% in singleton pregnancies. The risk of sPTD was increased in obese nulliparas (adjusted OR (aOR) 2.8, 95% CI 1.7 to 4.4) and underweight multiparas (aOR 2.2, 95% CI 1.3 to 3.8). The risk of ePTD was increased in underweight nulliparas (aOR 1.8; 95% CI 1.04 to 3.4) and severely obese multiparas (aOR 1.4, 95% CI 1.02 to 3.8).Severe obesity increased the risk of both sPTD (aOR 1.4; 95% CI 1.01 to 2.1) and ePTD (aOR 1.4; 95% CI 1.1 to 1.8) in singleton pregnancies. Obesity did not influence the rate of either sPTD or ePTD in multiple pregnancies. CONCLUSION: Maternal obesity is an independent risk factor for PTD in singleton pregnancies but not in multiple pregnancies. Obesity and nulliparity increase the risk of sPTD, whereas obesity and multiparity increase the risk of ePTD. PMID- 29038177 TI - Cervical and breast cancer screening participation and utilisation of maternal health services: a cross-sectional study among immigrant women in Southern Italy. AB - OBJECTIVES: Women make up approximately half of the world's one billion migrants. Immigrant women tend to be one of the most vulnerable population groups with respect to healthcare. Cancer screening (CS) and maternal and reproductive health have been included among the 10 main issues pertinent to women's health. The aim of this study is to explore breast and cervical CS participation and to acquire information regarding access to healthcare services during pregnancy, childbirth and the postpartum period among age eligible immigrant women in Southern Italy. METHODS: A structured questionnaire was used to collect data from each participant. Women aged 25-64 years who had not had a hysterectomy and women aged 50-69 years without history of breast cancer were considered eligible for the evaluation of cervical and breast CS participation, respectively. Moreover, women who had delivered at least once in Italy were enrolled to describe antenatal and postpartum care services use. All women were recruited through the third sector and non-profit organisations (NPOs). RESULTS: Rate of cervical CS among the 419 eligible women was low (39.1%), and about one-third had had a Pap test for screening purposes within a 3-year period from interview (32.8%). Regarding breast CS practices, of the 125 eligible women 45.6% had had a mammography for control purposes and less than a quarter (26, 20.8%) had their mammography within the recommended time interval of 2 years. About 80% of the respondents did not report difficulties of access and use of antenatal and postpartum services. CONCLUSION: This study provides currently unavailable information about adherence to CS and maternal and child health that could encourage future research to develop and test culturally appropriate, women-centred strategies for promoting timely and regular CS among immigrant women in Italy. PMID- 29038178 TI - Early sexual experiences of teenage heterosexual males in Australia: a cross sectional survey. AB - OBJECTIVE: There are limited data on the patterns of early sexual behaviours among Australian teenage heterosexual boys. This study describes the nature and onset of early sexual experiences in this population through a cross-sectional survey. DESIGN: A cross-sectional survey between 2014 and 2015 SETTING: Major sexual health clinics and community sources across Australia PARTICIPANTS: Heterosexual men aged 17-19 years RESULTS: There were 191 men in the study with a median age of 19.1 years. Median age at first oral sex was 16.4 years (IQR: 15.5 17.7) and 16.9 years (IQR: 16.0-18.0) for first vaginal sex. Most men had engaged in oral sex (89.5%) and vaginal sex (91.6%) in the previous 12 months with 32.6% reporting condom use at last vaginal sex. Of the total lifetime female partners for vaginal sex reported by men as a group (n=1187): 54.3% (n=645) were the same age as the man, 28.3% (n=336) were a year or more younger and 17.4% (n=206) were a year or more older. Prior anal sex with females was reported by 22% with 47% reporting condom use at last anal sex. Median age at first anal sex was 18.2 years (IQR: 17.3-18.8). Anal sex with a female was associated with having five or more lifetime female sexual partners for oral and vaginal sex. CONCLUSIONS: These data provide insights into the trajectory of sexual behaviours experienced by teenage heterosexual boys following sexual debut, findings which can inform programme promoting sexual health among teenage boys. PMID- 29038179 TI - Effects of school-based intervention by emergency medical technicians on students and their parents: a community-based prospective study of the Akashi project. AB - OBJECTIVE: Stroke lessons for youth provided by emergency medical technicians (EMTs) may be an effective strategy to facilitate early intervention for patients with stroke. The aim of this study was to examine how effective EMT-led lessons on stroke awareness for schoolchildren were at disseminating stroke information. SETTING, PARTICIPANTS AND OUTCOME MEASURES: The study was performed in the city of Akashi, Hyogo, Japan (Akashi project). Children (aged 9-10 years old) at 11 public elementary schools and their parents were enrolled in this study. EMTs from the firefighting headquarters provided lessons on stroke to the children using our educational materials between September 2014 and October 2015. Each child was given our educational materials to take home and discuss stroke with their parents. The children and their parents answered questionnaires on stroke knowledge before, immediately and at 3 months after the lesson. RESULTS: A total of 763 children and 489 parents were enrolled (ie, 64% of children). The scores of either stroke symptoms or risk factors were significantly higher immediately and at 3 months after the lesson, compared with before the lesson, both in children and the parents (p<0.01). Compared with the baseline in both groups (58% in children, 83% in parents), the meaning of the FAST mnemonic at 3 months (88%, 94%), as well as at immediately after the lesson (90%, 89%), was significantly higher (p<0.001). CONCLUSION: Stroke education by EMTs was effective in increasing stroke awareness in elementary school children, as well as their parents. PMID- 29038180 TI - Appropriateness of cases presenting in the emergency department following ambulance service secondary telephone triage: a retrospective cohort study. AB - OBJECTIVE: To investigate the appropriateness of cases presenting to the emergency department (ED) following ambulance-based secondary telephone triage. DESIGN: A pragmatic retrospective cohort analysis of all the planned and unplanned ED presentations within 48 hours of a secondary telephone triage. SETTING: The secondary telephone triage service, called the Referral Service, and the hospitals were located in metropolitan Melbourne, Australia and operated 24 hours a day, servicing 4.25 million people. The Referral Service provides an in depth secondary triage of cases classified as low acuity when calling the Australian emergency telephone number. POPULATION: Cases triaged by the Referral Service between September 2009 and June 2012 were linked to ED and hospital admission records (N=44,523). Planned ED presentations were cases referred to the ED following the secondary triage, unplanned ED presentations were cases that presented despite being referred to alternative care pathways. MAIN OUTCOME MEASURES: Appropriateness was measured using an ED suitability definition and hospital admission rates. These were compared with mean population data which consisted of all of the ED presentations for the state (termed the 'average Victorian ED presentation'). RESULTS: Planned ED presentations were more likely to be ED suitable than unplanned ED presentations (OR 1.62; 95% CI 1.5 to 1.7; p<0.001) and the average Victorian ED presentation (OR 1.85; 95% CI 1.01 to 3.4; p=0.046). They were also more likely to be admitted to the hospital than the unplanned ED presentation (OR 1.5; 95% CI 1.4 to 1.6; p<0.001) and the average Victorian ED presentation (OR 2.3, 95% CI 2.24 to 2.33; p<0.001). Just under 15% of cases diverted away from the emergency care pathways presented in the ED (unplanned ED attendances), and 9.5% of all the alternative care pathway cases were classified as ED suitable and 6.5% were admitted to hospital. CONCLUSIONS: Secondary telephone triage was able to appropriately identify many ED suitable cases, and while most cases referred to alternative care pathways did not present in the ED. Further research is required to establish that these were not inappropriately triaged away from the emergency care pathways. PMID- 29038181 TI - Barriers and facilitators to healthy lifestyle and acceptability of a dietary and physical activity intervention among African Caribbean prostate cancer survivors in the UK: a qualitative study. AB - OBJECTIVES: Diet and lifestyle may have a role in delaying prostate cancer progression, but little is known about the health behaviours of Black British prostate cancer survivors despite this group having a higher prostate cancer mortality rate than their White counterparts. We explored the barriers and facilitators to dietary and lifestyle changes and the acceptability of a diet and physical activity intervention in African Caribbean prostate cancer survivors. DESIGN: We conducted semistructured in-depth interviews and used thematic analysis to code and group the data. PARTICIPANTS AND SETTING: We recruited 14 African Caribbean prostate cancer survivors via letter or at oncology follow-up appointments using purposive and convenience sampling. RESULTS: A prostate cancer diagnosis did not trigger dietary and lifestyle changes in most men. This lack of change was underpinned by five themes: precancer diet and lifestyle, evidence, coping with prostate cancer, ageing, and autonomy. Men perceived their diet and lifestyle to be healthy and were uncertain about the therapeutic benefits of these factors on prostate cancer recurrence. They considered a lifestyle intervention as unnecessary because their prostate-specific antigen (PSA) level was kept under control by the treatments they had received. They believed dietary and lifestyle changes should be self-initiated and motivated, but were willing to make additional changes if they were perceived to be beneficial to health. Nonetheless, some men cited advice from health professionals and social support in coping with prostate cancer as facilitators to positive dietary and lifestyle changes. A prostate cancer diagnosis and ageing also heightened men's awareness of their health, particularly in regards to their body weight. CONCLUSIONS: A dietary and physical activity intervention framed as helping men to regain fitness and aid post-treatment recovery aimed at men with elevated PSA may be appealing and acceptable to African Caribbean prostate cancer survivors. PMID- 29038182 TI - Protocol for a scoping review to identify and map the global health personnel considered skilled attendants at birth in low and middle-income countries between 2000 and 2015. AB - INTRODUCTION: Despite progress towards the Millennium Development Goals (MDG), maternal mortality remains high in countries where there are shortages of skilled personnel able to manage and provide quality care during pregnancy and childbirth. The 'percentage of births attended by skilled health personnel' (SAB, skilled attendants at birth) was a key indicator for tracking progress since the MDGs and is part of the Sustainable Development Goal agenda. However, due to contextual differences between and within countries on the definition of SAB, a lack of clarity exists around the training, competencies, and skills they are qualified to perform. In this paper, we outline a scoping review protocol that poses to identify and map the health personnel considered SAB in low and middle income countries (LMIC). METHODS AND ANALYSIS: A search will be conducted for the years 2000-2015 in PubMed/MEDLINE, EMBASE, CINAHL Complete, Cochrane Database of Systematic Reviews, POPLINE and the WHO Global Health Library. A manual search of reference lists from identified studies or systematic reviews and a hand search of the literature from international partner organisations will be done. Original studies conducted in LMIC that assessed health personnel (paid or voluntary) providing interventions during the intrapartum period will be considered for inclusion. ETHICS AND DISSEMINATION: A scoping review is a secondary analysis of published literature and does not require ethics approval. This scoping review proposes to synthesise data on the training, competency and skills of identified SAB and expands on other efforts to describe this global health workforce. The results will inform recommendations around improved coverage measurement and reporting of SAB moving forward, allowing for more accurate, consistent and timely data able to guide decisions and action around planning and implementation of maternal and newborn health programme globally. Data will be disseminated through a peer-reviewed manuscript, conferences and to key stakeholders within international organisations. PMID- 29038183 TI - Sociodemographic variations in the amount, duration and cost of potentially preventable hospitalisation for chronic conditions among Aboriginal and non Aboriginal Australians: a period prevalence study of linked public hospital data. AB - OBJECTIVES: To determine disparities in rates, length of stay (LOS) and hospital costs of potentially preventable hospitalisations (PPH) for selected chronic conditions among Aboriginal and non-Aboriginal South Australians (SA), then examine associations with area-level socioeconomic disadvantage and remoteness. SETTING: Period prevalence study using linked, administrative public hospital records. PARTICIPANTS: Participants included all SA residents in 2005-2006 to 2010-2011. Analysis focused on those individuals experiencing chronic PPH as defined by the Australian Institute of Health and Welfare. PRIMARY OUTCOME MEASURES: Number and rates (unadjusted, then adjusted for sex and age) of chronic PPH, total LOS and direct hospital costs by Aboriginality. RESULTS: Aboriginal SAs experienced higher risk of index chronic PPH compared with non-Aboriginals (11.5 and 6.2 per 1000 persons per year, respectively) and at younger ages (median age 48 vs 70 years). Once hospitalised, Aboriginal people experienced more chronic PPH events, longer total LOS with higher costs than non-Aboriginal people (2.6 vs 1.9 PPH per person; 11.7 vs 9.0 days LOS; at $A17 928 vs $A11 515, respectively). Compared with population average LOS, the standardised rate ratio of LOS among Aboriginal people increased by 0.03 (95% CI 0.00 to 0.07) as disadvantage rank increased and 1.04 (95% CI 0.63 to 1.44) as remoteness increased. Non-Aboriginal LOS also increased as disadvantage increased but at a lower rate (0.01 (95% CI 0.01 to 0.01)). Costs of Aboriginal chronic PPH increased by 0.02 (95% CI 0.00 to 0.06) for each increase in disadvantage and 1.18 (95% CI 0.80 to 1.55) for increased remoteness. Non-Aboriginal costs also increased as disadvantage increased but at lower rates (0.01 (95% CI 0.01 to 0.01)). CONCLUSION: Aboriginal people's heightened risk of chronic PPH resulted in more time in hospital and greater cost. Systematic disparities in chronic PPH by Aboriginality, area disadvantage and remoteness highlight the need for improved uptake of effective primary care. Routine, regional reporting will help monitor progress in meeting these population needs. PMID- 29038184 TI - Optimising the quality of antibiotic prescribing in out-of-hours primary care in Belgium: a study protocol for an action research project. AB - INTRODUCTION: Antimicrobial resistance is a major public health threat driven by inappropriate antibiotic use, mainly in general practice and for respiratory tract infections. In Belgium, the quality of general practitioners' (GPs) antibiotic prescribing is low. To improve antibiotic use, we need a better understanding of this quality problem and corresponding interventions. A general practitioners cooperative (GPC) for out-of-hours (OOH) care presents a unique opportunity to reach a large group of GPs and work on quality improvement. Participatory action research (PAR) is a bottom-up approach that focuses on implementing change into daily practice and has the potential to empower practitioners to produce their own solutions to optimise their antibiotic prescribing. METHODS: This PAR study to improve antibiotic prescribing quality in OOH care uses a mixed methods approach. In a first exploratory phase, we will develop a partnership with a GPC and map the existing barriers and opportunities. In a second phase, we will focus on facilitating change and implementing interventions through PDSA (Plan-Do-Study-Act) cycles. In a third phase, antibiotic prescribing quality outside and antibiotic use during office hours will be evaluated. Equally important are the process evaluation and theory building on improving antibiotic prescribing. ETHICS: The study protocol was approved by the Ethics Committee of the Antwerp University Hospital/University of Antwerp. PAR unfolds in response to the needs and issues of the stakeholders, therefore new ethics approval will be obtained at each new stage of the research. DISSEMINATION: Interventions to improve antibiotic prescribing are needed now more than ever and outcomes will be highly relevant for GPCs, GPs in daily practice, national policymakers and the international scientific community. TRIAL REGISTRATION NUMBER: NCT03082521; Pre-results. PMID- 29038185 TI - Activation of professional and personal network relations when experiencing a symptom: a population-based cross-sectional study. AB - OBJECTIVE: To describe patterns of disclosure of symptoms experienced among people in the general population to persons in their personal and/or professional network. DESIGN: A population-based cross-sectional study. Data were collected from a web-based survey. SETTING: The general population in Denmark. PARTICIPANTS: 100 000 individuals randomly selected, representative of the adult Danish population aged >=20 years were invited. Approximately 5% were not eligible for inclusion. 49 706 (men=23 240; women=26 466) of 95 253 eligible individuals completed the questionnaire; yielding a response rate of 52.2%. Individuals completing all questions regarding social network relations form the study base (n=44 313). PRIMARY AND SECONDARY OUTCOME MEASURES: Activation of personal and/or professional relations when experiencing a symptom. RESULTS: The 44 313 individuals reported in total 260 079 symptom experiences within the last 4 weeks. No professional network relation was used in two-thirds of all reported symptoms. The general practitioner (GP) was the most frequently reported professional relation activated (22.5%). People reporting to have available personal relations were slightly less inclined to contact the GP (21.9%) when experiencing a symptom compared with people with no reported personal relations (26.8%). The most commonly activated personal relations were spouse/partner (56.4%) and friend (19.6%). More than a quarter of all reported symptom experiences was not shared with anyone, personal nor professional. The symptom experiences with the lowest frequency of network activation were symptoms such as black stool, constipation, change in stool texture and frequent urination. CONCLUSION: This study emphasises variation in the activation of network relations when experiencing a symptom. Symptoms were shared with both personal and professional relations, but different patterns of disclosures were discovered. For symptoms derived from the urogenital or colorectal region, the use of both personal and professional relations was relatively small, which might indicate reticence to involve other people when experiencing symptoms of that nature. PMID- 29038186 TI - Incidence, duration and cost of futile treatment in end-of-life hospital admissions to three Australian public-sector tertiary hospitals: a retrospective multicentre cohort study. AB - OBJECTIVES: To estimate the incidence, duration and cost of futile treatment for end-of-life hospital admissions. DESIGN: Retrospective multicentre cohort study involving a clinical audit of hospital admissions. SETTING: Three Australian public-sector tertiary hospitals. PARTICIPANTS: Adult patients who died while admitted to one of the study hospitals over a 6-month period in 2012. MAIN OUTCOME MEASURES: Incidences of futile treatment among end-of-life admissions; length of stay in both ward and intensive care settings for the duration that patients received futile treatments; health system costs associated with futile treatments; monetary valuation of bed days associated with futile treatment. RESULTS: The incidence rate of futile treatment in end-of-life admissions was 12.1% across the three study hospitals (range 6.0%-19.6%). For admissions involving futile treatment, the mean length of stay following the onset of futile treatment was 15 days, with 5.25 of these days in the intensive care unit. The cost associated with futile bed days was estimated to be $AA12.4 million for the three study hospitals using health system costs, and $A988 000 when using a decision maker's willingness to pay for bed days. This was extrapolated to an annual national health system cost of $A153.1 million and a decision maker's willingness to pay of $A12.3 million. CONCLUSIONS: The incidence rate and cost of futile treatment in end-of-life admissions varied between hospitals. The overall impact was substantial in terms of both the bed days and cost incurred. An increased awareness of these economic costs may generate support for interventions designed to reduce futile treatments. We did not include emotional hardship or pain and suffering, which represent additional costs. PMID- 29038188 TI - Probiotics administered intravaginally as a complementary therapy combined with antibiotics for the treatment of bacterial vaginosis: a systematic review protocol. AB - INTRODUCTION: Bacterial vaginosis (BV) is a highly prevalent vaginal polymicrobial disorder commonly encountered in women of childbearing age. Therapy with only recommended antibiotics results in low cure rates and unacceptably high recurrence rates. The use of probiotics as a complementary approach for use with antibiotics for the treatment of BV remains unclear. This review aims to assess the efficacy of lactobacilli administered intravaginally in conjunction with antibiotics for the treatment of BV. METHODS AND ANALYSIS: The Cochrane Central Register of Controlled Trials in The Cochrane Library, Cochrane Library of Systematic Reviews, Medline/PubMed and Embase will be used to search for articles from database inception to November 2016. Randomised controlled clinical trials using lactobacilli administered intravaginally in conjunction with antibiotics to treat BV will be included. Primary outcome will be the BV cure rate. The recurrence rate will be examined as secondary outcome. Two reviewers will independently select trials and extract data from the original publications. The risk of bias will be assessed according to the Cochrane Risk of Bias tool. We will perform data synthesis using the Review Manager (RevMan) software V.5.2.3. To assess heterogeneity, we will compute the I2 statistic. ETHICS AND DISSEMINATION: This study will be a review of published data and it is not necessary to obtain ethical approval. Findings of this systematic review will be published in a peer-reviewed journal. TRIAL REGISTRATION NUMBER: International Prospective Register of Systematic Reviews 2014: CRD42014015079. PMID- 29038189 TI - Nodular pulmonary amyloidosis: a complex disease with malignancy association. AB - Pulmonary amyloidosis is a rare disease that incorporates deposition of amyloid microfibril material in the lung parenchyma. The condition generally presents as an indolent subacute-to-chronic pulmonary disease and requires tissue biopsy to establish the diagnosis. Nodular pulmonary amyloidosis, a subtype of pulmonary amyloidosis, is characterised by special radiographic and pathological features. While the disease can be associated with inflammatory conditions; its association with mucosal-associated lymphoid tissue (MALT lymphoma) is unusual and carries management challenges. Herein, we illustrate a case study of nodular pulmonary amyloidosis associated with underlying MALT lymphoma in a patient with known systemic lupus erythematosus. The aim of this article is to share the management experience of this complex condition with the medical community and to conduct an up-to-date literature review on nodular pulmonary amyloidosis. PMID- 29038187 TI - Health-related quality of life variations by sociodemographic factors and chronic conditions in three metropolitan cities of South Asia: the CARRS study. AB - OBJECTIVES: Health-related quality of life (HRQOL) is a key indicator of health. However, HRQOL data from representative populations in South Asia are lacking. This study aims to describe HRQOL overall, by age, gender and socioeconomic status, and examine the associations between selected chronic conditions and HRQOL in adults from three urban cities in South Asia. METHODS: We used data from 16 287 adults aged >=20 years from the baseline survey of the Centre for Cardiometabolic Risk Reduction in South Asia cohort (2010-2011). HRQOL was measured using the European Quality of Life Five Dimension-Visual Analogue Scale (EQ5D-VAS), which measures health status on a scale of 0 (worst health status) to 100 (best possible health status). RESULTS: 16 284 participants completed the EQ5D-VAS. Mean age was 42.4 (+/-13.3) years and 52.4% were women. 14% of the respondents reported problems in mobility and pain/discomfort domains. Mean VAS score was 74 (95% CI 73.7 to 74.2). Significantly lower health status was found in elderly (64.1), women (71.6), unemployed (68.4), less educated (71.2) and low income group (73.4). Individuals with chronic conditions reported worse health status than those without (67.4 vs 76.2): prevalence ratio, 1.8 (95% CI 1.61 to 2.04). CONCLUSIONS: Our data demonstrate significantly lower HRQOL in key demographic groups and those with chronic conditions, which is consistent with previous studies. These data provide insights on inequalities in population health status, and potentially reveal unmet needs in the community to guide health policies. PMID- 29038191 TI - Obstructive uropathy as initial presentation of genitourinary tuberculosis and masquerading as a postsurgical complication. AB - A 46-year-old woman who had a recent total abdominal hysterectomy presented with a 1 month history of lower abdominal pain, 1 week of nausea and vomiting as well as decreased urinary output preceded by a year of significant unintentional weight loss. On renal imaging, she was found to have bilateral hydronephrosis and hydroureters in the setting of bilateral distal ureteric obstruction complicated with acute kidney injury and severe hyperkalaemia requiring haemodialysis. The initial concern was for ureteric injury, a known complication of abdominal hysterectomy procedures, however, a urological intervention, performed 9 months later to relieve the ureteric obstruction, revealed purulent material within the left ureter that was smear positive for acid fast bacilli. A GeneXpert test was positive for Mycobacterium tuberculosis She was diagnosed with genitourinary tuberculosis and responded well to antitubercular treatment and haemodialysis was discontinued after the surgery relieved her ureteric obstruction. PMID- 29038190 TI - Effect of autologous adipose-derived mesenchymal stem cell therapy in the treatment of a post-traumatic chondral defect of the knee. AB - Isolated chondral defects have a limited capacity to heal and predispose to the development of osteoarthritis. Current surgical management can be unpredictable in outcome. Improved understanding of the action of mesenchymal stem cells (MSCs) has seen renewed interest in their role in cartilage repair. A 26-year-old athlete presented with a post-traumatic, isolated patella chondral defect. The patient underwent an arthroscopy with removal of a chondral loose body. After failure to symptomatically improve 12 months following surgery, the patient received intra-articular autologous adipose-derived mesenchymal stem cell (ADMSC) therapy. PMID- 29038192 TI - Two gaps too many, three clues too few? Do elevated osmolal and anion gaps with crystalluria always mean ethylene glycol poisoning? AB - A 60-year-old African-American man with a medical history significant for heavy alcohol abuse, hypertension, delirium tremens, nephrolithiasis and seizure disorder was brought to the hospital with altered mental status. He was found to have high anion gap metabolic acidosis with significantly elevated lactate along with an elevated osmolal gap and calcium oxalate crystals in his urine. With this combination of findings, ethylene glycol poisoning was high in the differential. This case report describes why ethylene glycol poisoning was not the diagnosis in this patient despite the presence of these three classic laboratory findings, therefore emphasising the fact that these findings should not be taken at face value because they can be seen collectively in a patient yet each have a different cause. PMID- 29038193 TI - Recurrent episodes of esophageal candidiasis without dysphagia post-Guillain Barre syndrome: an unusual presentation of achalasia. AB - Here, we present a case of a 50-year-old male with a history of a Guillain-Barre syndrome, who was referred to our clinic with recurrent esophageal candidiasis and long-standing intermittent retrosternal cramps for further evaluation. Other symptoms such as dysphagia, regurgitations and weight loss were denied, and prior repeated endoscopy was otherwise unremarkable. Using high resolution impedance manometry, we could demonstrate a panesophageal pressure increase on water swallows and complete aperistalsis of the tubular esophagus, indicating achalasia type II. However, due to the patient's extraordinary body height and resulting length of the esophagus, endoluminal functional lumen imaging probe analysis supplementary to high resolution impedance manometry needed to be used to assess distensibility of the esophagogastral junction and to secure the diagnosis of achalasia before appropriately treating the patient with pneumatic dilation. PMID- 29038194 TI - Rare case of disseminated rhinosporidiosis with chronic osteomyelitis of the calcaneum treated by a simple technique of negative pressure wound therapy. AB - Occurrence of nasal, cutaneous and disseminated rhinosporidiosis in the same patient is uncommon and involvement of calcaneum is rare. Rhinosporidial osteomyelitis is treated surgically, but multiple recurrences and local spread are common. Many a times, surgical ablation or amputation of the involved area of the limb is carried out to prevent recurrences. We present a case of rhinosporidial osteomyelitis of the calcaneum with a chronic discharging sinus and large lytic lesion in the calcaneum treated by an alternative surgical option in the form of debridement and negative pressure wound therapy. PMID- 29038195 TI - Discoid lupus erythematosus: when a superficial injury is a red herring of underlying disease. PMID- 29038196 TI - Caecal volvulus with intestinal malrotation: need for caecopexy? PMID- 29038197 TI - Obstructive coronary artery disease in patient with acute thrombotic thrombocytopenic purpura. AB - Thrombotic thrombocytopenic purpura (TTP) affects essentially all organ systems. Myocardial injury in TTP is often attributed to microthrombi formation. We present the first case report in the literature of an acute TTP patient with concomitant obstructive coronary artery disease (CAD) and acute myocardial infarction who underwent successful percutaneous coronary intervention (PCI). A 70-year-old female patient who was diagnosed with acute TTP required plasma exchange. The patient also experienced episodes of angina pectoris, elevated cardiac enzymes and global ST segment depressions on ECG. A subsequent non invasive ischaemia workup revealed significant ischaemia. Coronary angiography revealed obstructive CAD in her right coronary artery, requiring PCI with a bare metal stent placement and dual antiplatelet therapy. The patient tolerated antiplatelet therapy well. At 6 months of follow-up, she had no recurrent angina. This case highlights the potential co-existence of obstructive CAD and acute TTP requiring careful differential diagnosis and treatment. PMID- 29038198 TI - Dysphagia due to DISH-related anterior osteophytes: DISHphagia!! PMID- 29038199 TI - Does the Treatment of Obstructive Sleep Apnea and Obesity Improve Pulsatile Hemodynamics? PMID- 29038200 TI - Renal Denervation After the SPYRAL HTN-OFF MED Trial: Putting a Complex Study Into Context. PMID- 29038201 TI - Kinin B1 Receptor Promotes Neurogenic Hypertension Through Activation of Centrally Mediated Mechanisms. AB - Hypertension is associated with increased activity of the kallikrein-kinin system. Kinin B1 receptor (B1R) activation leads to vasoconstriction and inflammation. Despite evidence supporting a role for the B1R in blood pressure regulation, the mechanisms by which B1R could alter autonomic function and participate in the pathogenesis of hypertension remain unidentified. We sought to explore whether B1R-mediated inflammation contributes to hypertension and investigate the molecular mechanisms involved. In this study, we tested the hypothesis that activation of B1R in the brain is involved in the pathogenesis of hypertension, using the deoxycorticosterone acetate-salt model of neurogenic hypertension in wild-type and B1R knockout mice. Deoxycorticosterone acetate-salt treatment in wild-type mice led to significant increases in B1R mRNA and protein levels and bradykinin levels, enhanced gene expression of carboxypeptidase N supporting an increase in the B1R ligand, associated with enhanced blood pressure, inflammation, sympathoexcitation, autonomic dysfunction, and impaired baroreflex sensitivity, whereas these changes were blunted or prevented in B1R knockout mice. B1R stimulation was further shown to involve activation of the ASK1-JNK-ERK1/2 and NF-kappaB pathways in the brain. To dismiss potential developmental alterations in knockout mice, we further used B1R blockade selectively in the brain of wild-type mice. Supporting the central origin of this mechanism, intracerebroventricular infusion of a specific B1R antagonist, attenuated the deoxycorticosterone acetate-salt-induced increase in blood pressure in wild-type mice. Our data provide the first evidence of a central role for B1R-mediated inflammatory pathways in the pathogenesis of deoxycorticosterone acetate-salt hypertension and offer novel insights into possible B1R-targeted therapies for the treatment of neurogenic hypertension. PMID- 29038202 TI - Brain Regional Blood Flow and Working Memory Performance Predict Change in Blood Pressure Over 2 Years. AB - Hypertension is a presumptive risk factor for premature cognitive decline. However, lowering blood pressure (BP) does not uniformly reverse cognitive decline, suggesting that high BP per se may not cause cognitive decline. We hypothesized that essential hypertension has initial effects on the brain that, over time, manifest as cognitive dysfunction in conjunction with both brain vascular abnormalities and systemic BP elevation. Accordingly, we tested whether neuropsychological function and brain blood flow responses to cognitive challenges among prehypertensive individuals would predict subsequent progression of BP. Midlife adults (n=154; mean age, 49; 45% men) with prehypertensive BP underwent neuropsychological testing and assessment of regional cerebral blood flow (rCBF) response to cognitive challenges. Neuropsychological performance measures were derived for verbal and logical memory (memory), executive function, working memory, mental efficiency, and attention. A pseudo-continuous arterial spin labeling magnetic resonance imaging sequence compared rCBF responses with control and active phases of cognitive challenges. Brain areas previously associated with BP were grouped into composites for frontoparietal, frontostriatal, and insular-subcortical rCBF areas. Multiple regression models tested whether BP after 2 years was predicted by initial BP, initial neuropsychological scores, and initial rCBF responses to cognitive challenge. The neuropsychological composite of working memory (standardized beta, -0.276; se=0.116; P=0.02) and the frontostriatal rCBF response to cognitive challenge (standardized beta, 0.234; se=0.108; P=0.03) significantly predicted follow-up BP. Initial BP failed to significantly predict subsequent cognitive performance or rCBF. Changes in brain function may precede or co-occur with progression of BP toward hypertensive levels in midlife. PMID- 29038205 TI - The Ethics of Conducting Clinical Trials With Sodium-Glucose Cotransporter-2 Inhibitors in Heart Failure: Is Placebo Assignment Justified in Patients With Comorbid Diabetes Mellitus and Heart Failure? PMID- 29038203 TI - Effect of CPAP, Weight Loss, or CPAP Plus Weight Loss on Central Hemodynamics and Arterial Stiffness. AB - : Obesity and obstructive sleep apnea tend to coexist. Little is known about the effects of obstructive sleep apnea, obesity, or their treatment on central aortic pressures and large artery stiffness. We randomized 139 adults with obesity (body mass index >30 kg/m2) and moderate-to-severe obstructive sleep apnea to (1) continuous positive airway pressure (CPAP) therapy (n=45), (2) weight loss (WL) therapy (n=48), or (3) combined CPAP and WL (n=46) for 24 weeks. We assessed the effect of these interventions on central pressures and carotid-femoral pulse wave velocity (a measure of large artery stiffness), measured with arterial tonometry. Central systolic pressure was reduced significantly only in the combination arm ( 7.4 mm Hg; 95% confidence interval, -12.5 to -2.4 mm Hg; P=0.004), without significant reductions detected in either the WL-only (-2.3 mm Hg; 95% confidence interval, -7.5 to 3.0; P=0.39) or the CPAP-only (-3.1 mm Hg; 95% confidence interval, -8.3 to 2.0; P=0.23) arms. However, none of these interventions significantly changed central pulse pressure, pulse pressure amplification, or the central augmentation index. The change in mean arterial pressure (P=0.008) and heart rate (P=0.027) induced by the interventions was significant predictors of the change in carotid-femoral pulse wave velocity. However, after adjustment for mean arterial pressure and heart rate, no significant changes in carotid femoral pulse wave velocity were observed in any group. In obese subjects with obstructive sleep apnea, combination therapy with WL and CPAP is effective in reducing central systolic pressure. However, this effect is largely mediated by changes in mean, rather than central pulse pressure. WL and CPAP, alone or in combination, did not reduce large artery stiffness in this population. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00371293. PMID- 29038206 TI - Closing the Genotype-Phenotype Loop for Precision Medicine. PMID- 29038204 TI - Do We Need a Patient-Centered Target for Systolic Blood Pressure in Hypertensive Patients With Type 2 Diabetes Mellitus? AB - The current trend on diabetes mellitus management advocates replacing the paradigm from a uniform to an individualized patient-centered systolic blood pressure (SBP), but there is no consensus on the achieved treatment goals of SBP level. The study aimed at evaluating the association between SBP and the risk of cardiovascular diseases (CVD) and all-cause mortality for diabetic patients to identify patient-centered treatment targets. A retrospective study was conducted on 95 086 Chinese adult primary care patients with type 2 diabetes mellitus and hypertension. Using the average of the annual SBP records (updated SBP) over a median follow-up of 5.9 years, the risks of overall CVD, all-cause mortality, and their composite associated with SBP were evaluated using Cox proportional hazards regression. Subgroup analysis was performed on the incidence of CVD by stratifying patient's baseline characteristics. The SBP range for the lowest risk of CVD and all-cause mortality was 130 to 134 mm Hg among type 2 diabetes mellitus population. A J-shaped curvilinear relationship was identified between SBP and risk of CVD and all-cause mortality, irrespective of patients' characteristics. The findings showed that all patients with SBP <125 mm Hg or >=140 mm Hg had an increased risk of CVD and mortality. This large territory-wide study showed the level of achieved SBP of 125 to 139 mm Hg in pharmacological therapy, irrespective of patients' characteristics, suggested that the SBP treatment goal of <140 mm Hg and individualized SBP target may not be necessary in diabetic management. PMID- 29038207 TI - FunSel: Mesenchymal Stromal Cells Stay for the Party. PMID- 29038208 TI - DNA Methylation and Human Heart Failure: Mechanisms or Prognostics. PMID- 29038209 TI - Activation and Inhibition of Sodium-Hydrogen Exchanger Is a Mechanism That Links the Pathophysiology and Treatment of Diabetes Mellitus With That of Heart Failure. AB - The mechanisms underlying the progression of diabetes mellitus and heart failure are closely intertwined, such that worsening of one condition is frequently accompanied by worsening of the other; the degree of clinical acceleration is marked when the 2 coexist. Activation of the sodium-hydrogen exchanger in the heart and vasculature (NHE1 isoform) and the kidneys (NHE3 isoform) may serve as a common mechanism that links both disorders and may underlie their interplay. Insulin insensitivity and adipokine abnormalities (the hallmarks of type 2 diabetes mellitus) are characteristic features of heart failure; conversely, neurohormonal systems activated in heart failure (norepinephrine, angiotensin II, aldosterone, and neprilysin) impair insulin sensitivity and contribute to microvascular disease in diabetes mellitus. Each of these neurohormonal derangements may act through increased activity of both NHE1 and NHE3. Drugs used to treat diabetes mellitus may favorably affect the pathophysiological mechanisms of heart failure by inhibiting either or both NHE isoforms, and drugs used to treat heart failure may have beneficial effects on glucose tolerance and the complications of diabetes mellitus by interfering with the actions of NHE1 and NHE3. The efficacy of NHE inhibitors on the risk of cardiovascular events may be enhanced when heart failure and glucose intolerance coexist and may be attenuated when drugs with NHE inhibitory actions are given concomitantly. Therefore, the sodium-hydrogen exchanger may play a central role in the interplay of diabetes mellitus and heart failure, contribute to the physiological and clinical progression of both diseases, and explain certain drug-drug and drug-disease interactions that have been reported in large-scale randomized clinical trials. PMID- 29038210 TI - Increases in Natriuretic Peptides Precede Heart Failure Hospitalization in Patients With a Recent Coronary Event and Type 2 Diabetes Mellitus. PMID- 29038211 TI - Letter by Musso et al Regarding Article, "Cardiac Outcomes After Ischemic Stroke or Transient Ischemic Attack: Effects of Pioglitazone in Patients With Insulin Resistance Without Diabetes Mellitus". PMID- 29038212 TI - Letter by Jin-Shan and Xue-Bin Regarding Article, "Cardiac Outcomes After Ischemic Stroke or Transient Ischemic Attack: Effects of Pioglitazone in Patients With Insulin Resistance Without Diabetes Mellitus". PMID- 29038213 TI - Response by Young et al to Letters Regarding Article, "Cardiac Outcomes After Ischemic Stroke or Transient Ischemic Attack: Effects of Pioglitazone in Patients With Insulin Resistance Without Diabetes Mellitus". PMID- 29038215 TI - Correction to: 2017 ACC/AHA/HRS Guideline for the Evaluation and Management of Patients With Syncope: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. PMID- 29038214 TI - Correction to 2017 ACC/AHA/HRS Guideline for the Evaluation and Management of Patients With Syncope: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. PMID- 29038216 TI - Is abdominal hypopressive technique effective in the prevention and treatment of pelvic floor dysfunction? Marketing or evidence from high-quality clinical trials? PMID- 29038217 TI - Hippocampal area CA1 and remote memory in rats. AB - Hippocampal lesions often produce temporally graded retrograde amnesia (TGRA), whereby recent memory is impaired more than remote memory. This finding has provided support for the process of systems consolidation. However, temporally graded memory impairment has not been observed with the watermaze task, and the findings have been inconsistent with context fear conditioning. One possibility is that large hippocampal lesions indirectly disrupt (by retrograde degeneration) the function of areas that project to the hippocampus that are important for task performance or thought to be important for storing consolidated memories. We developed a discrete lesion targeting area CA1, the sole output of the hippocampus to neocortex, and tested the effects of this lesion on recent and remote memory in the watermaze task, in context fear conditioning, and in trace fear conditioning. In all three tasks, recent and remote memory were similarly impaired after CA1 lesions. We discuss factors that help to illuminate these findings and consider their relevance to systems consolidation. PMID- 29038218 TI - Experiential learning in rodents: past experience enables rapid learning and localized encoding in hippocampus. AB - Humans routinely use past experience with complexity to deal with novel, challenging circumstances. This fundamental aspect of real-world behavior has received surprisingly little attention in animal studies, and the underlying brain mechanisms are unknown. The present experiments tested for transfer from past experience in rats and then used quantitative imaging to localize synaptic modifications in hippocampus. Six daily exposures to an enriched environment (EE) caused a marked enhancement of short- and long-term memory encoded during a 30 min session in a different and complex environment relative to rats given extensive handling or access to running wheels. Relatedly, the EE animals investigated the novel environment in a different manner than the other groups, suggesting transfer of exploration strategies acquired in earlier interactions with complexity. This effect was not associated with changes in the number or size of excitatory synapses in hippocampus. Maps of synapses expressing a marker for long-term potentiation indicated that encoding in the EE group, relative to control animals, was concentrated in hippocampal field CA1. Importantly, <1% of the total population of synapses was involved in production of the regional map. These results constitute the first evidence that the transfer of experience profoundly affects the manner in which hippocampus encodes complex information. PMID- 29038219 TI - The L-type voltage-gated calcium channel CaV1.2 mediates fear extinction and modulates synaptic tone in the lateral amygdala. AB - L-type voltage-gated calcium channels (LVGCCs) have been implicated in both the formation and the reduction of fear through Pavlovian fear conditioning and extinction. Despite the implication of LVGCCs in fear learning and extinction, studies of the individual LVGCC subtypes, CaV1.2 and CaV1.3, using transgenic mice have failed to find a role of either subtype in fear extinction. This discontinuity between the pharmacological studies of LVGCCs and the studies investigating individual subtype contributions could be due to the limited neuronal deletion pattern of the CaV1.2 conditional knockout mice previously studied to excitatory neurons in the forebrain. To investigate the effects of deletion of CaV1.2 in all neuronal populations, we generated CaV1.2 conditional knockout mice using the synapsin1 promoter to drive Cre recombinase expression. Pan-neuronal deletion of CaV1.2 did not alter basal anxiety or fear learning. However, pan-neuronal deletion of CaV1.2 resulted in a significant deficit in extinction of contextual fear, implicating LVGCCs, specifically CaV1.2, in extinction learning. Further exploration on the effects of deletion of CaV1.2 on inhibitory and excitatory input onto the principle neurons of the lateral amygdala revealed a significant shift in inhibitory/excitatory balance. Together these data illustrate an important role of CaV1.2 in fear extinction and the synaptic regulation of activity within the amygdala. PMID- 29038220 TI - Context memory formation requires activity-dependent protein degradation in the hippocampus. AB - Numerous studies have indicated that the consolidation of contextual fear memories supported by an aversive outcome like footshock requires de novo protein synthesis as well as protein degradation mediated by the ubiquitin-proteasome system (UPS). Context memory formed in the absence of an aversive stimulus by simple exposure to a novel environment requires de novo protein synthesis in both the dorsal (dHPC) and ventral (vHPC) hippocampus. However, the role of UPS mediated protein degradation in the consolidation of context memory in the absence of a strong aversive stimulus has not been investigated. In the present study, we used the context preexposure facilitation effect (CPFE) procedure, which allows for the dissociation of context learning from context-shock learning, to investigate the role of activity-dependent protein degradation in the dHPC and vHPC during the formation of a context memory. We report that blocking protein degradation with the proteasome inhibitor clasto-lactacystin beta-lactone (betaLac) or blocking protein synthesis with anisomycin (ANI) immediately after context preexposure significantly impaired context memory formation. Additionally, we examined 20S proteasome activity at different time points following context exposure and saw that the activity of proteasomes in the dHPC increases immediately after stimulus exposure while the vHPC exhibits a biphasic pattern of proteolytic activity. Taken together, these data suggest that the requirement of increased proteolysis during memory consolidation is not driven by processes triggered by the strong aversive outcome (i.e., shock) normally used to support fear conditioning. PMID- 29038221 TI - Prazosin during threat discrimination boosts memory of the safe stimulus. AB - The alpha-1 adrenoreceptor antagonist prazosin has shown promise in the treatment of post-traumatic stress disorder (PTSD) symptoms, but its mechanisms are not well understood. Here we administered prazosin or placebo prior to threat conditioning (day 1) and tested subsequent extinction (day 2) and reextinction (day 3) in healthy human participants. Prazosin did not affect threat conditioning but augmented stimulus discrimination during extinction and reextinction, via lower responding to the safe stimulus. These results suggest that prazosin during threat acquisition may have influenced encoding or consolidation of safety processing in particular, subsequently leading to enhanced discrimination between the safe and threatening stimuli. PMID- 29038222 TI - Post-training reversible disconnection of the ventral hippocampal-basolateral amygdaloid circuits impairs consolidation of inhibitory avoidance memory in rats. AB - The ventral hippocampus (VH) and the basolateral amygdala (BLA) are both crucial in inhibitory avoidance (IA) memory. However, the exact role of the VH-BLA circuit in IA memory consolidation is unclear. This study investigated the effect of post-training reversible disconnection of the VH-BLA circuit in IA memory consolidation. Male Wistar rats with implanted guide cannulae were trained with a one-trial IA task, then received immediate intracerebral injections of muscimol or saline, and were tested 24 h later. Muscimol injection into the bilateral BLA, or the unilateral VH and contralateral BLA, but not the unilateral VH and ipsilateral BLA, significantly decreased the retention latencies (versus saline treatment). The results suggest that the VH-BLA circuit could be an important circuit to modulate consolidation of IA memory in rats. PMID- 29038224 TI - Effect of Elective Percutaneous Coronary Intervention on Hyperemic Absolute Coronary Blood Flow Volume and Microvascular Resistance. AB - BACKGROUND: The hemodynamics involved in the relationship between absolute coronary blood flow (ABF) volume and myocardial resistance (MR) are complex, and the effect of percutaneous coronary intervention (PCI) on their changes remains unclear. The aim of this study was to investigate the differences in hyperemic ABF and MR before and after elective PCI using a thermodilution method. METHODS AND RESULTS: We investigated 28 vessels (right coronary artery, 9; left anterior descending coronary artery, 18; left circumflex coronary artery, 1) from 28 patients with stable angina pectoris undergoing elective PCI. ABF was measured pre- and post-PCI using a pressure-temperature sensor-equipped wire, based on a thermodilution method with a continuous saline infusion of 20 mL/min through a proximally located microcatheter with an end-hole in the target vessel. MR equals distal coronary perfusion pressure divided by ABF at maximal hyperemia. Conventional fractional flow reserve was also measured pre- and post-PCI. Fractional flow reserve increased significantly after PCI (from 0.70 [0.65-0.75] to 0.88 [0.85-0.95]) in all examined territories. ABF also increased significantly (from 137.8 mL/min [86.3-180.8 mL/min] to 173.3 mL/min [137.9-234.3 mL/min] ; increase: 52.8 mL/min [9.7-80.8 mL/min]) while MR decreased in 11 vessels and increased in 17. No significant relationship was detected between these increases in fractional flow reserve and ABF. Both pre- and post-PCI MR distributed in a wide range, and there was a significant relationship between pre PCI MR and the increase in ABF (r=0.44; P=0.02) although no significant change in MR was observed between pre- and post-PCI (P=0.37). CONCLUSIONS: Direct measurement of ABF and MR using thermodilution method offers a feasible approach that could shed a light on previously unclear aspects of coronary hemodynamics. PMID- 29038225 TI - Role of Proximal Optimization Technique Guided by Intravascular Ultrasound on Stent Expansion, Stent Symmetry Index, and Side-Branch Hemodynamics in Patients With Coronary Bifurcation Lesions. AB - BACKGROUND: Bench models of coronary bifurcation lesions demonstrated that the proximal optimization technique (POT) expanded the stent and opened the side branch (SB). We investigated the role of POT guided by intravascular ultrasound on the main vessel (MV) stent expansion and SB fractional flow reserve (FFR) in patients with coronary bifurcation lesion. METHODS AND RESULTS: In 40 patients with coronary bifurcation lesion, 120 intravascular ultrasound examinations of the MV were performed at baseline, after MV stenting, and POT followed by 95 FFR measurements of the SB. In the proximal stent segment, stent volume index and minimum stent area were larger after POT versus MV stenting (9.2+/-3.4 versus 7.40+/-2.0 mm3/mm and 7.65+/-1.8 versus 6.38+/-1.7 mm2, respectively; P<0.01). In the bifurcation segment, minimum stent area was larger after POT versus MV stenting (6.45+/-2.1 versus 5.9+/-2.0 mm2, respectively; P<0.05). POT expanded the stent symmetrically. After POT, SB FFR was <0.75 in 12 patients (30%), which improved to >0.75 after SB dilation or SB stenting+final POT. SB FFR was significantly higher after POT+SB dilation or SB stenting+final POT versus after MV stenting and POT. CONCLUSIONS: This is the first study of POT guided by intravascular ultrasound in patients with coronary bifurcation lesion, demonstrating that POT symmetrically expanded the proximal and bifurcation segments of the stent. After POT, SB FFR was <0.75 in a third of patients, which improved to >0.75 after SB dilation or SB stenting+final POT. PMID- 29038223 TI - Modulation of target recollection and recollection rejection networks due to retrieval facilitation and interference. AB - To better understand neural recollection processing, we induced interference in target recollection by presenting related lures before their respective targets and facilitated recollection rejection of lures by presenting targets before their related lures. Target recollection following interference recruited visual and prefrontal cortices, showing that these regions support recollection when related information has disrupted target representations. Recollection rejection following target presentation recruited angular gyrus, indicating that this region supports recollection rejection when target representations are strong and highly accessible. Thus, recollection networks are sensitive to the accessibility of target representations that are affected by the presentation of related information during retrieval. PMID- 29038226 TI - Letter by Uretsky et al Regarding Article, "Prognostic Value of Fractional Flow Reserve Measured Immediately After Drug-Eluting Stent Implantation". PMID- 29038227 TI - Quantification of Absolute Coronary Blood Flow and Microvascular Resistance. PMID- 29038228 TI - Response by Piroth et al to Letter Regarding Article, "Prognostic Value of Fractional Flow Reserve Measured Immediately After Drug-Eluting Stent Implantation". PMID- 29038230 TI - Constitutive activity of the Ghrelin receptor reduces surface expression of voltage-gated Ca2+ channels in a CaVbeta-dependent manner. AB - Voltage-gated Ca2+ (CaV) channels couple membrane depolarization to Ca2+ influx, triggering a range of Ca2+-dependent cellular processes. CaV channels are, therefore, crucial in shaping neuronal activity and function, depending on their individual temporal and spatial properties. Furthermore, many neurotransmitters and drugs that act through G protein coupled receptors (GPCRs), modulate neuronal activity by altering the expression, trafficking, or function of CaV channels. GPCR-dependent mechanisms that downregulate CaV channel expression levels are observed in many neurons but are, by comparison, less studied. Here we show that the growth hormone secretagogue receptor type 1a (GHSR), a GPCR, can inhibit the forwarding trafficking of several CaV subtypes, even in the absence of agonist. This constitutive form of GPCR inhibition of CaV channels depends on the presence of a CaVbeta subunit. CaVbeta subunits displace CaValpha1 subunits from the endoplasmic reticulum. The actions of GHSR on CaV channels trafficking suggest a role for this signaling pathway in brain areas that control food intake, reward, and learning and memory. PMID- 29038229 TI - The polymorphic proteins TgrB1 and TgrC1 function as a ligand-receptor pair in Dictyostelium allorecognition. AB - Allorecognition is a key factor in Dictyostelium development and sociality. It is mediated by two polymorphic transmembrane proteins, TgrB1 and TgrC1, which contain extracellular immunoglobulin domains. TgrB1 and TgrC1 are necessary and sufficient for allorecognition, and they carry out separate albeit overlapping functions in development, but their mechanism of action is unknown. Here, we show that TgrB1 acts as a receptor with TgrC1 as its ligand in cooperative aggregation and differentiation. The proteins bind each other in a sequence-specific manner; TgrB1 exhibits a cell-autonomous function and TgrC1 acts non-cell-autonomously. The TgrB1 cytoplasmic tail is essential for its function and it becomes phosphorylated upon association with TgrC1. Dominant mutations in TgrB1 activate the receptor function and confer partial ligand independence. These roles in development and sociality suggest that allorecognition is crucial in the integration of individual cells into a coherent organism. PMID- 29038231 TI - Evaluation of Clinical Drug Interaction Potential of Clofazimine Using Static and Dynamic Modeling Approaches. AB - The 2016 World Health Organization treatment recommendations for drug-resistant tuberculosis (DR-TB) positioned clofazimine as a core second-line drug. Being identified as a cytochrome P450 (P450) inhibitor in vitro, a P450-mediated drug interaction may be likely when clofazimine is coadministered with substrates of these enzymes. The P450-mediated drug interaction potential of clofazimine was evaluated using both static [estimation of the R1 and area under the plasma concentration-time curve ratio (AUCR) values] and dynamic [physiologically based pharmacokinetics (PBPK)] modeling approaches. For static and dynamic predictions, midazolam, repaglinide, and desipramine were used as probe substrates for CYP3A4/5, CYP2C8, and CYP2D6, respectively. The AUCR static model estimations for clofazimine with the substrates midazolam, repaglinide, and desipramine were 5.59, 1.34, and 1.69, respectively. The fold increases in the area under the curve (AUC) predicted for midazolam, repaglinide, and desipramine with clofazimine (based on PBPK modeling) were 2.69, 1.60, and 1.47, respectively. Clofazimine was predicted to be a moderate-to-strong CYP3A4/5 inhibitor and weak CYP2C8 and CYP2D6 inhibitor based on the calculated AUCR by static and PBPK modeling. Additionally, for selected antiretroviral, antitubercular, antihypertensive, antidiabetic, antileprotics, and antihyperlipidemic CYP3A4/5 substrate drugs, approximately 2- to 6-fold increases in the AUC were predicted with static modeling when coadministered with 100 mg of clofazimine. Therefore, the possibility of an increase in the AUC of CYP3A4/5 substrates when coadministered with clofazimine cannot be ignored. PMID- 29038233 TI - Development of Molecularly Driven Targeted Combination Strategies. PMID- 29038232 TI - Tissue Force Programs Cell Fate and Tumor Aggression. AB - Biomechanical and biochemical cues within a tissue collaborate across length scales to direct cell fate during development and are critical for the maintenance of tissue homeostasis. Loss of tensional homeostasis in a tissue not only accompanies malignancy but may also contribute to oncogenic transformation. High mechanical stress in solid tumors can impede drug delivery and may additionally drive tumor progression and promote metastasis. Mechanistically, biomechanical forces can drive tumor aggression by inducing a mesenchymal-like switch in transformed cells so that they attain tumor-initiating or stem-like cell properties. Given that cancer stem cells have been linked to metastasis and treatment resistance, this raises the intriguing possibility that the elevated tissue mechanics in tumors could promote their aggression by programming their phenotype toward that exhibited by a stem-like cell.Significance: Recent findings argue that mechanical stress and elevated mechanosignaling foster malignant transformation and metastasis. Prolonged corruption of tissue tension may drive tumor aggression by altering cell fate specification. Thus, strategies that could reduce tumor mechanics might comprise effective approaches to prevent the emergence of treatment-resilient metastatic cancers. Cancer Discov; 7(11); 1224 37. (c)2017 AACR. PMID- 29038234 TI - Patient-Reported Symptom Control of Diarrhea and Flushing in Patients with Neuroendocrine Tumors Treated with Lanreotide Depot/Autogel: Results from a Randomized, Placebo-Controlled, Double-Blind and 32-Week Open-Label Study. AB - BACKGROUND: In the double-blind (DB) ELECT study, lanreotide depot/autogel significantly reduced versus placebo the need for short-acting octreotide for symptomatic carcinoid syndrome (CS) control in neuroendocrine tumor (NET) patients. Here we present patient-reported symptom data during DB and initial open-label (IOL) treatment. MATERIALS AND METHODS: Adults with NETs and CS history, with/without prior somatostatin analog use, were randomized to 16 weeks' DB lanreotide 120 mg subcutaneous or placebo every 4 weeks, followed by 32 weeks' IOL lanreotide. Patients recorded diarrhea and/or flushing frequency and severity daily by Interactive Voice (Web) Response System for 1 month prior to randomization and throughout the study. RESULTS: Of 115 patients randomized (n = 59 lanreotide, n = 56 placebo), 56 lanreotide and 45 placebo patients enrolled in the IOL phase. During DB treatment, least square (LS) mean percentages of days with moderate/severe diarrhea and/or flushing were significantly lower for lanreotide (23.4%) versus placebo (35.8%; LS mean difference [95% confidence interval]: -12.4 [-20.73 to -4.07]; p = .004). For DB lanreotide patients, average daily composite (frequency * severity) diarrhea scores improved significantly between DB and IOL treatment (mean difference: -0.71 [-1.20 to 0.22]; p = .005), and remained stable for diarrhea and/or flushing. For DB placebo patients, composite scores for diarrhea, flushing, and diarrhea and/or flushing improved significantly between DB and IOL treatment (mean differences: 1.07 [-1.65 to -0.49]; -1.06 [-1.93 to -0.19]; and -2.13 [-3.35 to -0.91]; all p <= .018). CONCLUSION: Improved diarrhea and flushing control in CS patients during 16-week lanreotide treatment was sustained during maintenance of lanreotide treatment for the 32-week IOL phase (48 weeks total). IMPLICATIONS FOR PRACTICE: This study prospectively collected daily patient-reported data on diarrhea and flushing from the ELECT trial to evaluate the direct impact of lanreotide depot on patients' relief of carcinoid syndrome symptoms. Treatment with lanreotide depot was associated with significant reductions in the percentages of days patients reported symptoms of diarrhea and flushing, as well as reductions in the frequency and severity of daily symptoms compared with placebo during 16 weeks of double-blind treatment. These improvements were sustained for 32 additional weeks of open-label lanreotide treatment (i.e., through week 48 of treatment), resulting in clinically meaningful, long-term symptom reduction. PMID- 29038235 TI - Rare Tumor Clinic: The University of California San Diego Moores Cancer Center Experience with a Precision Therapy Approach. AB - BACKGROUND: Patients with rare tumors may lack approved treatments and clinical trial access. Although each rare tumor is uncommon, cumulatively they account for approximately 25% of cancers. We recently initiated a Rare Tumor Clinic that emphasized a precision medicine strategy. MATERIALS AND METHODS: We investigated the first 40 patients presenting at the Rare Tumor Clinic. Next-generation sequencing (NGS) of tissue and plasma-derived, circulating-tumor DNA (ctDNA), and protein markers were assessed. RESULTS: Median age was 58 years (range, 31-78 years); 70% (28/40) were women; median number of previous systemic therapies was 2 (range 0-7). The most common diagnoses were sarcoma (n = 7) for solid tumors and Erdheim-Chester disease (n = 5) for hematologic malignancies. Twenty distinct diagnoses were seen. Examples of ultrarare tumors included ameloblastoma, yolk sac liver tumor, ampullary cancer, and Castleman's disease. Altogether, 32 of 33 patients (97%) with tissue NGS and 15 of 33 (45%) with ctDNA sequencing harbored >=1 alteration. Overall, 92.5% of patients (37/40) had >=1 actionable target based on either genomic (n = 32) or protein (n = 27) markers. In total, 52.5% (21/40) received matched therapy; 52.4% (11/21) achieved stable disease (SD) >=6 months (n = 3), partial remission (PR; n = 6), or complete remission (CR; n = 2). Matched therapy resulted in significantly longer progression-free survival compared with last prior unmatched therapy (hazard ratio 0.26, 95% confidence interval 0.10-0.71, p = .008). CONCLUSION: Identifying genomic and protein markers in patients with rare/ultrarare tumors was feasible. When therapies were matched, >50% of patients attained SD >=6 months, PR, or CR. Further precision medicine clinical investigations focusing on rare and ultrarare tumors are urgently needed. IMPLICATIONS FOR PRACTICE: Although rare tumors are infrequent by definition, when all subtypes of rare cancers are combined, they account for approximately 25% of adult malignancies. However, patients with rare tumors may lack approved treatments and clinical trial access. This paper describes an institutional a Rare Tumor Clinic focused on a precision medicine strategy. Performing genomics and protein analyses was feasible amongst patients with rare cancers. Over 50% of patients attained SD >=6 months, PR, or CR when they received matched therapy (genomically targeted and/or immunotherapy). Further studies investigating the efficacy of the precision therapy approach among rare tumors are warranted. PMID- 29038236 TI - Efficacy of Prophylactic Treatment for Oxycodone-Induced Nausea and Vomiting Among Patients with Cancer Pain (POINT): A Randomized, Placebo-Controlled, Double Blind Trial. AB - BACKGROUND: Although opioid-induced nausea and vomiting (OINV) often result in analgesic undertreatment in patients with cancer, no randomized controlled trials have evaluated the efficacy of prophylactic antiemetics for preventing OINV. We conducted this randomized, placebo-controlled, double-blind trial to evaluate the efficacy and safety of prophylactic treatment with prochlorperazine for preventing OINV. MATERIALS AND METHODS: Cancer patients who started to receive oral oxycodone were randomly assigned in a 1:1 ratio to receive either prochlorperazine 5 mg or placebo prophylactically, given three times daily for 5 days. The primary endpoint was the proportion of patients who had a complete response (CR) during the 120 hours of oxycodone treatment. CR was defined as no emetic episode and no use of rescue medication for nausea and vomiting during 5 days. Key secondary endpoints were the proportion of patients with emetic episodes, proportion of patients with moderate or severe nausea, quality of life, and proportion of treatment withdrawal. RESULTS: From November 2013 through February 2016, a total of 120 patients were assigned to receive prochlorperazine (n = 60) or placebo (n = 60). There was no significant difference in CR rates (69.5% vs. 63.3%; p = .47) or any secondary endpoint between the groups. Patients who received prochlorperazine were more likely to experience severe somnolence (p = .048). CONCLUSION: Routine use of prochlorperazine as a prophylactic antiemetic at the initiation of treatment with opioids is not recommended. Further research is needed to evaluate whether other antiemetics would be effective in preventing OINV in specific patient populations. IMPLICATIONS FOR PRACTICE: Prophylactic prochlorperazine seems to be ineffective in preventing opioid-induced nausea and vomiting (OINV) and may cause adverse events such as somnolence. Routine use of prophylactic prochlorperazine at the initiation of treatment with opioids is not recommended. Further research is needed to evaluate whether other antiemetics would be effective in preventing OINV in specific patient populations. PMID- 29038237 TI - The Gain-of-Function Integrin beta3 Pro33 Variant Alters the Serotonin System in the Mouse Brain. AB - Engagement of integrins by the extracellular matrix initiates signaling cascades that drive a variety of cellular functions, including neuronal migration and axonal pathfinding in the brain. Multiple lines of evidence link the ITGB3 gene encoding the integrin beta3 subunit with the serotonin (5-HT) system, likely via its modulation of the 5-HT transporter (SERT). The ITGB3 coding polymorphism Leu33Pro (rs5918, PlA2) produces hyperactive alphavbeta3 receptors that influence whole-blood 5-HT levels and may influence the risk for autism spectrum disorder (ASD). Using a phenome-wide scan of psychiatric diagnoses, we found significant, male-specific associations between the Pro33 allele and attention-deficit hyperactivity disorder and ASDs. Here, we used knock-in (KI) mice expressing an Itgb3 variant that phenocopies the human Pro33 variant to elucidate the consequences of constitutively enhanced alphavbeta3 signaling to the 5-HT system in the brain. KI mice displayed deficits in multiple behaviors, including anxiety, repetitive, and social behaviors. Anatomical studies revealed a significant decrease in 5-HT synapses in the midbrain, accompanied by decreases in SERT activity and reduced localization of SERTs to integrin adhesion complexes in synapses of KI mice. Inhibition of focal adhesion kinase (FAK) rescued SERT function in synapses of KI mice, demonstrating that constitutive active FAK signaling downstream of the Pro32Pro33 integrin alphavbeta3 suppresses SERT activity. Our studies identify a complex regulation of 5-HT homeostasis and behaviors by integrin alphavbeta3, revealing an important role for integrins in modulating risk for neuropsychiatric disorders.SIGNIFICANCE STATEMENT The integrin beta3 Leu33Pro coding polymorphism has been associated with autism spectrum disorders (ASDs) within a subgroup of patients with elevated blood 5-HT levels, linking integrin beta3, 5-HT, and ASD risk. We capitalized on these interactions to demonstrate that the Pro33 coding variation in the murine integrin beta3 recapitulates the sex-dependent neurochemical and behavioral attributes of ASD. Using state-of-the-art techniques, we show that presynaptic 5 HT function is altered in these mice, and that the localization of 5-HT transporters to specific compartments within the synapse, disrupted by the integrin beta3 Pro33 mutation, is critical for appropriate reuptake of 5-HT. Our studies provide fundamental insight into the genetic network regulating 5-HT neurotransmission in the CNS that is also associated with ASD risk. PMID- 29038238 TI - Delayed Maturation of Fast-Spiking Interneurons Is Rectified by Activation of the TrkB Receptor in the Mouse Model of Fragile X Syndrome. AB - Fragile X syndrome (FXS) is a neurodevelopmental disorder that is a leading cause of inherited intellectual disability, and the most common known cause of autism spectrum disorder. FXS is broadly characterized by sensory hypersensitivity and several developmental alterations in synaptic and circuit function have been uncovered in the sensory cortex of the mouse model of FXS (Fmr1 KO). GABA mediated neurotransmission and fast-spiking (FS) GABAergic interneurons are central to cortical circuit development in the neonate. Here we demonstrate that there is a delay in the maturation of the intrinsic properties of FS interneurons in the sensory cortex, and a deficit in the formation of excitatory synaptic inputs on to these neurons in neonatal Fmr1 KO mice. Both these delays in neuronal and synaptic maturation were rectified by chronic administration of a TrkB receptor agonist. These results demonstrate that the maturation of the GABAergic circuit in the sensory cortex is altered during a critical developmental period due in part to a perturbation in BDNF-TrkB signaling, and could contribute to the alterations in cortical development underlying the sensory pathophysiology of FXS.SIGNIFICANCE STATEMENT Fragile X (FXS) individuals have a range of sensory related phenotypes, and there is growing evidence of alterations in neuronal circuits in the sensory cortex of the mouse model of FXS (Fmr1 KO). GABAergic interneurons are central to the correct formation of circuits during cortical critical periods. Here we demonstrate a delay in the maturation of the properties and synaptic connectivity of interneurons in Fmr1 KO mice during a critical period of cortical development. The delays both in cellular and synaptic maturation were rectified by administration of a TrkB receptor agonist, suggesting reduced BDNF-TrkB signaling as a contributing factor. These results provide evidence that the function of fast-spiking interneurons is disrupted due to a deficiency in neurotrophin signaling during early development in FXS. PMID- 29038239 TI - Correlated Disruption of Resting-State fMRI, LFP, and Spike Connectivity between Area 3b and S2 following Spinal Cord Injury in Monkeys. AB - This study aims to understand how functional connectivity (FC) between areas 3b and S2 alters following input deprivation and the neuronal basis of disrupted FC of resting-state fMRI signals. We combined submillimeter fMRI with microelectrode recordings to localize the deafferented digit regions in areas 3b and S2 by mapping tactile stimulus-evoked fMRI activations before and after cervical dorsal column lesion in each male monkey. An average afferent disruption of 97% significantly reduced fMRI, local field potential (LFP), and spike responses to stimuli in both areas. Analysis of resting-state fMRI signal correlation, LFP coherence, and spike cross-correlation revealed significantly reduced functional connectivity between deafferented areas 3b and S2. The degrees of reductions in stimulus responsiveness and FC after deafferentation differed across fMRI, LFP, and spiking signals. The reduction of FC was much weaker than that of stimulus evoked responses. Whereas the largest stimulus-evoked signal drop (~80%) was observed in LFP signals, the greatest FC reduction was detected in the spiking activity (~30%). fMRI signals showed mild reductions in stimulus responsiveness (~25%) and FC (~20%). The overall deafferentation-induced changes were quite similar in areas 3b and S2 across signals. Here we demonstrated that FC strength between areas 3b and S2 was much weakened by dorsal column lesion, and stimulus response reduction and FC disruption in fMRI covary with those of LFP and spiking signals in deafferented areas 3b and S2. These findings have important implications for fMRI studies aiming to probe FC alterations in pathological conditions involving deafferentation in humans.SIGNIFICANCE STATEMENT By directly comparing fMRI, local field potential, and spike signals in both tactile stimulation and resting states before and after severe disruption of dorsal column afferent, we demonstrated that reduction in fMRI responses to stimuli is accompanied by weakened resting-state fMRI functional connectivity (FC) in input deprived and reorganized digit regions in area 3b of the S1 and S2. Concurrent reductions in local field potential and spike FC validated the use of resting state fMRI signals for probing neural intrinsic FC alterations in pathological deafferented cortex, and indicated that disrupted FC between mesoscale functionally highly related regions may contribute to the behavioral impairments. PMID- 29038240 TI - alphaII Spectrin Forms a Periodic Cytoskeleton at the Axon Initial Segment and Is Required for Nervous System Function. AB - Spectrins form a submembranous cytoskeleton proposed to confer strength and flexibility to neurons and to participate in ion channel clustering at axon initial segments (AIS) and nodes of Ranvier. Neuronal spectrin cytoskeletons consist of diverse beta subunits and alphaII spectrin. Although alphaII spectrin is found in neurons in both axonal and somatodendritic domains, using proteomics, biochemistry, and superresolution microscopy, we show that alphaII and betaIV spectrin interact and form a periodic AIS cytoskeleton. To determine the role of spectrins in the nervous system, we generated Sptan1f/f mice for deletion of CNS alphaII spectrin. We analyzed alphaII spectrin-deficient mice of both sexes and found that loss of alphaII spectrin causes profound reductions in all beta spectrins. alphaII spectrin-deficient mice die before 1 month of age and have disrupted AIS and many other neurological impairments including seizures, disrupted cortical lamination, and widespread neurodegeneration. These results demonstrate the importance of the spectrin cytoskeleton both at the AIS and throughout the nervous system.SIGNIFICANCE STATEMENT Spectrin cytoskeletons play diverse roles in neurons, including assembly of excitable domains such as the axon initial segment (AIS) and nodes of Ranvier. However, the molecular composition and structure of these cytoskeletons remain poorly understood. Here, we show that alphaII spectrin partners with betaIV spectrin to form a periodic cytoskeleton at the AIS. Using a new alphaII spectrin conditional knock-out mouse, we show that alphaII spectrin is required for AIS assembly, neuronal excitability, cortical lamination, and to protect against neurodegeneration. These results demonstrate the broad importance of spectrin cytoskeletons for nervous system function and development and have important implications for nervous system injuries and diseases because disruption of the spectrin cytoskeleton is a common molecular pathology. PMID- 29038241 TI - Sensorimotor Processing in the Basal Ganglia Leads to Transient Beta Oscillations during Behavior. AB - Brief epochs of beta oscillations have been implicated in sensorimotor control in the basal ganglia of task-performing healthy animals. However, which neural processes underlie their generation and how they are affected by sensorimotor processing remains unclear. To determine the mechanisms underlying transient beta oscillations in the LFP, we combined computational modeling of the subthalamo pallidal network for the generation of beta oscillations with realistic stimulation patterns derived from single-unit data recorded from different basal ganglia subregions in rats performing a cued choice task. In the recordings, we found distinct firing patterns in the striatum, globus pallidus, and subthalamic nucleus related to sensory and motor events during the behavioral task. Using these firing patterns to generate realistic inputs to our network model led to transient beta oscillations with the same time course as the rat LFP data. In addition, our model can account for further nonintuitive aspects of beta modulation, including beta phase resets after sensory cues and correlations with reaction time. Overall, our model can explain how the combination of temporally regulated sensory responses of the subthalamic nucleus, ramping activity of the subthalamic nucleus, and movement-related activity of the globus pallidus leads to transient beta oscillations during behavior.SIGNIFICANCE STATEMENT Transient beta oscillations emerge in the normal functioning cortico-basal ganglia loop during behavior. Here, we used a unique approach connecting a computational model closely with experimental data. In this way, we achieved a simulation environment for our model that mimics natural input patterns in awake, behaving animals. We demonstrate that a computational model for beta oscillations in Parkinson's disease (PD) can also account for complex patterns of transient beta oscillations in healthy animals. Therefore, we propose that transient beta oscillations in healthy animals share the same mechanism with pathological beta oscillations in PD. This important result connects functional and pathological roles of beta oscillations in the basal ganglia. PMID- 29038242 TI - Activity-Dependent Facilitation of CaV1.3 Calcium Channels Promotes KCa3.1 Activation in Hippocampal Neurons. AB - CaV1 L-type calcium channels are key to regulating neuronal excitability, with the range of functional roles enhanced by interactions with calmodulin, accessory proteins, or CaMKII that modulate channel activity. In hippocampal pyramidal cells, a prominent elevation of CaV1 activity is apparent in late channel openings that can last for seconds following a depolarizing stimulus train. The current study tested the hypothesis that a reported interaction among CaV1.3 channels, the scaffolding protein densin, and CaMKII could generate a facilitation of channel activity that outlasts a depolarizing stimulus. We found that CaV1.3 but not CaV1.2 channels exhibit a long-duration calcium-dependent facilitation (L-CDF) that lasts up to 8 s following a brief 50 Hz stimulus train, but only when coexpressed with densin and CaMKII. To test the physiological role for CaV1.3 L-CDF, we coexpressed the intermediate-conductance KCa3.1 potassium channel, revealing a strong functional coupling to CaV1.3 channel activity that was accentuated by densin and CaMKII. Moreover, the CaV1.3-densin-CaMKII interaction gave rise to an outward tail current of up to 8 s duration following a depolarizing stimulus in both tsA-201 cells and male rat CA1 pyramidal cells. A slow afterhyperpolarization in pyramidal cells was reduced by a selective block of CaV1 channels by isradipine, a CaMKII blocker, and siRNA knockdown of densin, and spike frequency increased upon selective block of CaV1 channel conductance. The results are important in revealing a CaV1.3-densin-CaMKII interaction that extends the contribution of CaV1.3 calcium influx to a time frame well beyond a brief input train.SIGNIFICANCE STATEMENT CaV1 L-type calcium channels play a key role in regulating the output of central neurons by providing calcium influx during repetitive inputs. This study identifies a long-duration calcium-dependent facilitation (L-CDF) of CaV1.3 channels that depends on the scaffolding protein densin and CaMKII and that outlasts a depolarizing stimulus by seconds. We further show a tight functional coupling between CaV1.3 calcium influx and the intermediate-conductance KCa3.1 potassium channel that promotes an outward tail current of up to 8 s following a depolarizing stimulus. Tests in CA1 hippocampal pyramidal cells reveal that a slow AHP is reduced by blocking different components of the CaV1.3-densin-CaMKII interaction, identifying an important role for CaV1.3 L-CDF in regulating neuronal excitability. PMID- 29038243 TI - An alphaII Spectrin-Based Cytoskeleton Protects Large-Diameter Myelinated Axons from Degeneration. AB - Axons must withstand mechanical forces, including tension, torsion, and compression. Spectrins and actin form a periodic cytoskeleton proposed to protect axons against these forces. However, because spectrins also participate in assembly of axon initial segments (AISs) and nodes of Ranvier, it is difficult to uncouple their roles in maintaining axon integrity from their functions at AIS and nodes. To overcome this problem and to determine the importance of spectrin cytoskeletons for axon integrity, we generated mice with alphaII spectrin deficient peripheral sensory neurons. The axons of these neurons are very long and exposed to the mechanical forces associated with limb movement; most lack an AIS, and some are unmyelinated and have no nodes. We analyzed alphaII spectrin deficient mice of both sexes and found that, in myelinated axons, alphaII spectrin forms a periodic cytoskeleton with betaIV and betaII spectrin at nodes of Ranvier and paranodes, respectively, but that loss of alphaII spectrin disrupts this organization. Avil-cre;Sptan1f/f mice have reduced numbers of nodes, disrupted paranodal junctions, and mislocalized Kv1 K+ channels. We show that the density of nodal betaIV spectrin is constant among axons, but the density of nodal alphaII spectrin increases with axon diameter. Remarkably, Avil cre;Sptan1f/f mice have intact nociception and small-diameter axons, but severe ataxia due to preferential degeneration of large-diameter myelinated axons. Our results suggest that nodal alphaII spectrin helps resist the mechanical forces experienced by large-diameter axons, and that alphaII spectrin-dependent cytoskeletons are also required for assembly of nodes of Ranvier.SIGNIFICANCE STATEMENT A periodic axonal cytoskeleton consisting of actin and spectrin has been proposed to help axons resist the mechanical forces to which they are exposed (e.g., compression, torsion, and stretch). However, until now, no vertebrate animal model has tested the requirement of the spectrin cytoskeleton in maintenance of axon integrity. We demonstrate the role of the periodic spectrin-dependent cytoskeleton in axons and show that loss of alphaII spectrin from PNS axons causes preferential degeneration of large-diameter myelinated axons. We show that nodal alphaII spectrin is found at greater densities in large diameter myelinated axons, suggesting that nodes are particularly vulnerable domains requiring a specialized cytoskeleton to protect against axon degeneration. PMID- 29038244 TI - Overactivity of Liver-Related Neurons in the Paraventricular Nucleus of the Hypothalamus: Electrophysiological Findings in db/db Mice. AB - Preautonomic neurons in the paraventricular nucleus (PVN) of the hypothalamus play a large role in the regulation of hepatic functions via the autonomic nervous system. Activation of hepatic sympathetic nerves increases glucose and lipid metabolism and contributes to the elevated hepatic glucose production observed in the type 2 diabetic condition. This augmented sympathetic output could originate from altered activity of liver-related PVN neurons. Remarkably, despite the importance of the brain-liver pathway, the cellular properties of liver-related neurons are not known. In this study, we provide the first evidence of overall activity of liver-related PVN neurons. Liver-related PVN neurons were identified with a retrograde, trans-synaptic, viral tracer in male lean and db/db mice and whole-cell patch-clamp recordings were conducted. In db/db mice, the majority of liver-related PVN neurons fired spontaneously; whereas, in lean mice the majority of liver-related PVN neurons were silent, indicating that liver related PVN neurons are more active in db/db mice. Persistent, tonic inhibition was identified in liver-related PVN neurons; although, the magnitude of tonic inhibitory control was not different between lean and db/db mice. In addition, our study revealed that the transient receptor potential vanilloid type 1 dependent increase of excitatory neurotransmission was reduced in liver-related PVN neurons of db/db mice. These findings demonstrate plasticity of liver-related PVN neurons and a shift toward excitation in a diabetic mouse model. Our study suggests altered autonomic circuits at the level of the PVN, which can contribute to autonomic dysfunction and dysregulation of neural control of hepatic functions including glucose metabolism.SIGNIFICANCE STATEMENT A growing body of evidence suggests the importance of the autonomic control in the regulation of hepatic metabolism, which plays a major role in the development and progression of type 2 diabetes mellitus. Despite the importance of the brain-liver pathway, the overall activity of liver-related neurons in control and diabetic conditions is not known. This is a significant gap in knowledge, which prevents developing strategies to improve glucose homeostasis via altering the brain-liver pathway. One of the key findings of our study is the overall shift toward excitation in liver-related hypothalamic neurons in the diabetic condition. This overactivity may be one of the underlying mechanisms of elevated sympathetic activity known in metabolically compromised patients and animal models. PMID- 29038245 TI - Mitochondrial Calcium Dysregulation Contributes to Dendrite Degeneration Mediated by PD/LBD-Associated LRRK2 Mutants. AB - Mutations in leucine-rich repeat kinase 2 (LRRK2) contribute to development of late-onset familial Parkinson's disease (PD), with clinical features of motor and cognitive dysfunction indistinguishable from sporadic PD. Calcium dysregulation plays an important role in PD pathogenesis, but the mechanisms of neurodegeneration remain unclear. Recent reports indicate enhanced excitatory neurotransmission in cortical neurons expressing mutant LRRK2, which occurs before the well-characterized phenotype of dendritic shortening. As mitochondria play a major role in the rapid buffering of cytosolic calcium, we hypothesized that altered mitochondrial calcium handling contributes to dendritic retraction elicited by the LRRK2-G2019S and -R1441C mutations. In primary mouse cortical neurons, we observed increased depolarization-induced mitochondrial calcium uptake. We found that expression of mutant LRRK2 elicited transcriptional upregulation of the mitochondrial calcium uniporter (MCU) and the mitochondrial calcium uptake 1 protein (MICU1) with no change in levels of the mitochondrial calcium antiporter NCLX. Elevated MCU and MICU1 were also observed in LRRK2 mutated patient fibroblasts, along with increased mitochondrial calcium uptake, and in postmortem brains of sporadic PD/PDD patients of both sexes. Transcriptional upregulation of MCU and MICU1 was caused by activation of the ERK1/2 (MAPK3/1) pathway. Inhibiting ERK1/2 conferred protection against mutant LRRK2-induced neurite shortening. Pharmacological inhibitors or RNAi knockdown of MCU attenuated mitochondrial calcium uptake and dendritic/neuritic shortening elicited by mutant LRRK2, whereas expression of a constitutively active mutant of NCLX that enhances calcium export from mitochondria was neuroprotective. These data suggest that an increased susceptibility to mitochondrial calcium dysregulation contributes to dendritic injury in mutant LRRK2 pathogenesis.SIGNIFICANCE STATEMENT Cognitive dysfunction and dementia are common features of Parkinson's disease (PD), causing significant disability. Mutations in LRRK2 represent the most common known genetic cause of PD. We found that PD linked LRRK2 mutations increased dendritic and mitochondrial calcium uptake in cortical neurons and familial PD patient fibroblasts, accompanied by increased expression of the mitochondrial calcium transporter MCU. Blocking the ERK1/2 dependent upregulation of MCU conferred protection against mutant LRRK2-elicited dendrite shortening, as did inhibiting MCU-mediated calcium import. Conversely, stimulating the export of calcium from mitochondria was also neuroprotective. These results implicate increased susceptibility to mitochondrial calcium overload in LRRK2-driven neurodegeneration, and suggest possible interventions that may slow the progression of cognitive dysfunction in PD. PMID- 29038246 TI - CB1-Dependent Long-Term Depression in Ventral Tegmental Area GABA Neurons: A Novel Target for Marijuana. AB - The VTA is necessary for reward behavior with dopamine cells critically involved in reward signaling. Dopamine cells in turn are innervated and regulated by neighboring inhibitory GABA cells. Using whole-cell electrophysiology in juvenile adolescent GAD67-GFP male mice, we examined excitatory plasticity in fluorescent VTA GABA cells. A novel CB1-dependent LTD was induced in GABA cells that was dependent on metabotropic glutamate receptor 5, and cannabinoid receptor 1 (CB1). LTD was absent in CB1 knock-out mice but preserved in heterozygous littermates. Bath applied Delta9-tetrahydrocannabinol depressed GABA cell activity, therefore downstream dopamine cells will be disinhibited; and thus, this could potentially result in increased reward. Chronic injections of Delta9-tetrahydrocannabinol occluded LTD compared with vehicle injections; however, a single exposure was insufficient to do so. As synaptic modifications by drugs of abuse are often tied to addiction, these data suggest a possible mechanism for the addictive effects of Delta9-tetrahydrocannabinol in juvenile-adolescents, by potentially altering reward behavioral outcomes.SIGNIFICANCE STATEMENT The present study identifies a novel form of glutamatergic synaptic plasticity in VTA GABA neurons, a currently understudied cell type that is critical for the brain's reward circuit, and how Delta9-tetrahydrocannabinol occludes this plasticity. This study specifically addresses a potential unifying mechanism whereby marijuana could exert rewarding and addictive/withdrawal effects. Marijuana use and legalization are a pressing issue for many states in the United States. Although marijuana is the most commonly abused illicit drug, the implications of legalized, widespread, or continued usage are speculative. This study in juvenile-adolescent aged mice identifies a novel form of synaptic plasticity in VTA GABA cells, and the synaptic remodeling that can occur after Delta9-tetrahydrocannabinol use. PMID- 29038247 TI - Constitutive Activation of Integrin alpha9 Augments Self-Directed Hyperplastic and Proinflammatory Properties of Fibroblast-like Synoviocytes of Rheumatoid Arthritis. AB - Despite advances in the treatment of rheumatoid arthritis (RA), currently approved medications can have significant side effects due to their direct immunosuppressive activities. Additionally, current therapies do not address residual synovial inflammation. In this study, we evaluated the role of integrin alpha9 and its ligand, tenascin-C (Tn-C), on the proliferative and inflammatory response of fibroblast-like synoviocytes (FLSs) from RA patients grown in three dimensional (3D)-micromass culture. FLSs from osteoarthritis patients, when grown in the 3D-culture system, formed self-directed lining-like structures, whereas FLSs from RA tissues (RA-FLSs) developed an abnormal structure of condensed cellular accumulation reflective of the pathogenic features of RA synovial tissues. Additionally, RA-FLSs grown in 3D culture showed autonomous production of proinflammatory mediators. Predominant expression of alpha9 and Tn-C was observed in the condensed lining, and knockdown of these molecules abrogated the abnormal lining-like structure formation and suppressed the spontaneous expression of matrix metalloproteinases, IL-6, TNFSF11/RANKL, and cadherin-11. Disruption of alpha9 also inhibited expression of Tn-C, suggesting existence of a positive feedback loop in which the engagement of alpha9 with Tn-C self-amplifies its own signaling and promotes progression of synovial hyperplasia. Depletion of alpha9 also suppressed the platelet-derived growth factor-induced hyperplastic response of RA-FLSs and blunted the TNF-alpha-induced expression of matrix metalloproteinases and IL-6. Finally, alpha9-blocking Ab also suppressed the formation of the condensed cellular lining by RA-FLSs in 3D cultures in a concentration-related manner. This study demonstrates the central role of alpha9 in pathogenic behaviors of RA-FLSs and highlights the potential of alpha9 blocking agents as a nonimmunosuppressive treatment for RA-associated synovitis. PMID- 29038248 TI - Lipopolysaccharide Potentiates Insulin-Driven Hypoglycemic Shock. AB - Critically ill patients typically present with hyperglycemia. Treatment with conventional insulin therapy (targeting 144-180 mg/dl) improves patient survival; however, intensive insulin therapy (IIT) targeting normal blood glucose levels (81-108 mg/dl) increases the incidence of moderate and severe hypoglycemia, and increases mortality. Septic patients are especially prone to IIT-induced hypoglycemia, but the mechanism remains unknown. Here, we show that codelivery of insulin with otherwise sublethal doses of LPS induced hypoglycemic shock in mice within 1-2 h. LPS impaired clearance of insulin, which amplified insulin receptor signaling. These effects were mediated by caspase-11, TLR4, and complement, each of which trigger eicosanoid production that potentiates insulin signaling. Finally, in an animal model of sepsis, we observed that Salmonella typhimurium infected mice exhibited simultaneous impaired insulin clearance coexisting with insulin resistance. Our results raise the possibility that septic patients have impaired insulin clearance, which could increase their susceptibility to hypoglycemia during IIT, contraindicating its use. PMID- 29038249 TI - Anti-PD-1 Antibody Treatment Promotes Clearance of Persistent Cryptococcal Lung Infection in Mice. AB - Activation of immunomodulatory pathways in response to invasive fungi can impair clearance and promote persistent infections. The programmed cell death protein-1 (PD-1) signaling pathway inhibits immune effector responses against tumors, and immune checkpoint inhibitors that block this pathway are being increasingly used as cancer therapy. The objective of this study was to investigate whether this pathway contributes to persistent fungal infection and to determine whether anti PD-1 Ab treatment improves fungal clearance. Studies were performed using C57BL/6 mice infected with a moderately virulent strain of Cryptococcus neoformans (52D), which resulted in prolonged elevations in fungal burden and histopathologic evidence of chronic lung inflammation. Persistent infection was associated with increased and sustained expression of PD-1 on lung lymphocytes, including a mixed population of CD4+ T cells. In parallel, expression of the PD-1 ligands, PD-1 ligands 1 and 2, was similarly upregulated on specific subsets of resident and recruited lung dendritic cells and macrophages. Treatment of persistently infected mice for 4 wk by repetitive administration of neutralizing anti-PD-1 Ab significantly improved pulmonary fungal clearance. Treatment was well tolerated without evidence of morbidity. Immunophenotyping revealed that anti-PD-1 Ab treatment did not alter immune effector cell numbers or myeloid cell activation. Treatment did reduce gene expression of IL-5 and IL-10 by lung leukocytes and promoted sustained upregulation of OX40 by Th1 and Th17 cells. Collectively, this study demonstrates that PD-1 signaling promotes persistent cryptococcal lung infection and identifies this pathway as a potential target for novel immune based treatments of chronic fungal disease. PMID- 29038250 TI - Inhibition of IRAK1 Ubiquitination Determines Glucocorticoid Sensitivity for TLR9 Induced Inflammation in Macrophages. AB - Inflammatory responses are controlled by signaling mediators that are regulated by various posttranslational modifications. Recently, transcription-independent functions for glucocorticoids (GC) in restraining inflammation have emerged, but the underlying mechanisms are unknown. In this study, we report that GC receptor (GR)-mediated actions of GC acutely suppress TLR9-induced inflammation via inhibition of IL-1R-associated kinase 1 (IRAK1) ubiquitination. beta-TrCP-IRAK1 interaction is required for K48-linked ubiquitination of IRAK1 at Lys134 and subsequent membrane-to-cytoplasm trafficking of IRAK1 interacting partners TNFR associated factor 6 and TAK1 that facilitates NF-kappaB and MAPK activation. Upon costimulation of macrophages with GC and TLR9-engaging ligand, GR physically interacts with IRAK1 and interferes with protein-protein interactions between beta-TrCP and IRAK1. Ablation of GR in macrophages prevents GC-dependent suppression of beta-TrCP-IRAK1 interactions. This GC-mediated suppression of IRAK1 activation is unique to TLR9, as GC treatment impairs TLR9 but not TLR4 ligand-induced K48-linked IRAK1 ubiquitination and trafficking of IRAK1 interacting partners. Furthermore, mutations in IRAK1 at Lys134 prevent TLR9 ligand-induced activation of inflammatory signaling mediators and synthesis of proinflammatory cytokines to an extent comparable to GC-mediated inhibition. Collectively, these findings identify a transcription-independent, rapid, and nongenomic GC suppression of TLR9 ligand-mediated IRAK1 ubiquitination as a novel mechanism for restraining acute inflammatory reactions. PMID- 29038251 TI - Stress Introduction Rate Alters the Benefit of AcrAB-TolC Efflux Pumps. AB - Stress tolerance studies are typically conducted in an all-or-none fashion. However, in realistic settings-such as in clinical or metabolic engineering applications-cells may encounter stresses at different rates. Therefore, how cells tolerate stress may depend on its rate of appearance. To address this, we studied how the rate of stress introduction affects bacterial stress tolerance by focusing on a key stress response mechanism. Efflux pumps, such as AcrAB-TolC of Escherichia coli, are membrane transporters well known for the ability to export a wide variety of substrates, including antibiotics, signaling molecules, and biofuels. Although efflux pumps improve stress tolerance, pump overexpression can result in a substantial fitness cost to the cells. We hypothesized that the ideal pump expression level would involve a rate-dependent trade-off between the benefit of pumps and the cost of their expression. To test this, we evaluated the benefit of the AcrAB-TolC pump under different rates of stress introduction, including a step, a fast ramp, and a gradual ramp. Using two chemically diverse stresses, the antibiotic chloramphenicol and the jet biofuel precursor pinene, we assessed the benefit provided by the pumps. A mathematical model describing these effects predicted the benefit as a function of the rate of stress introduction. Our findings demonstrate that as the rate of introduction is lowered, stress response mechanisms provide a disproportionate benefit to pump-containing strains, allowing cells to survive beyond the original inhibitory concentrations.IMPORTANCE Efflux pumps are ubiquitous in nature and provide stress tolerance in the cells of species ranging from bacteria to mammals. Understanding how pumps provide tolerance has far-reaching implications for diverse fields, from medicine to biotechnology. Here, we investigated how the rate of stressor appearance impacts tolerance. We focused on two distinct substrates of AcrAB-TolC efflux pumps, the antibiotic chloramphenicol and the biofuel precursor pinene. Interestingly, tolerance is highly dependent on the rate of stress introduction. Therefore, it is important to consider not only the total quantity of a stressor but also the rate at which it is applied. The implications of this work are significant because environments are rarely static; antibiotic concentrations change during dosing, and metabolic engineering processes change with time. PMID- 29038252 TI - A Bacteriophage Capsid Protein Is an Inhibitor of a Conserved Transcription Terminator of Various Bacterial Pathogens. AB - Rho is a hexameric molecular motor that functions as a conserved transcription terminator in the majority of bacterial species and is a potential drug target. Psu is a bacteriophage P4 capsid protein that inhibits Escherichia coli Rho by obstructing its ATPase and translocase activities. In this study, we explored the anti-Rho activity of Psu for Rho proteins from different pathogens. Sequence alignment and homology modeling of Rho proteins from pathogenic bacteria revealed the conserved nature of the Psu-interacting regions in all these proteins. We chose Rho proteins from various pathogens, including Mycobacterium smegmatis, Mycobacterium bovis, Mycobacterium tuberculosis, Xanthomonas campestris, Xanthomonas oryzae, Corynebacterium glutamicum, Vibrio cholerae, Salmonella enterica, and Pseudomonas syringae The purified recombinant Rho proteins of these organisms showed variable rates of ATP hydrolysis on poly(rC) as the substrate and were capable of releasing RNA from the E. coli transcription elongation complexes. Psu was capable of inhibiting these two functions of all these Rho proteins. In vivo pulldown assays revealed direct binding of Psu with many of these Rho proteins. In vivo expression of psu induced killing of M. smegmatis, M. bovis, X. campestris, and E. coli expressing S. enterica Rho indicating Psu induced inhibition of Rho proteins of these strains under physiological conditions. We propose that the "universal" inhibitory function of the Psu protein against the Rho proteins from both Gram-negative and Gram-positive bacteria could be useful for designing peptides with antimicrobial functions and that these peptides could contribute to synergistic antibiotic treatment of the pathogens by compromising the Rho functions.IMPORTANCE Bacteriophage-derived protein factors modulating different bacterial processes could be converted into unique antimicrobial agents. Bacteriophage P4 capsid protein Psu is an inhibitor of the E. coli transcription terminator Rho. Here we show that apart from antagonizing E. coli Rho, Psu is able to inhibit Rho proteins from various phylogenetically unrelated Gram-negative and Gram-positive pathogens. Upon binding to these Rho proteins, Psu inhibited them by affecting their ATPase and RNA release functions. The expression of Psu in vivo kills various pathogens, such as Mycobacterium and Xanthomonas species. Hence, Psu could be useful for identifying peptide sequences with anti-Rho activities and might constitute part of synergistic antibiotic treatment against pathogens. PMID- 29038253 TI - Conversion of Norepinephrine to 3,4-Dihdroxymandelic Acid in Escherichia coli Requires the QseBC Quorum-Sensing System and the FeaR Transcription Factor. AB - The detection of norepinephrine (NE) as a chemoattractant by Escherichia coli strain K-12 requires the combined action of the TynA monoamine oxidase and the FeaB aromatic aldehyde dehydrogenase. The role of these enzymes is to convert NE into 3,4-dihydroxymandelic acid (DHMA), which is a potent chemoattractant sensed by the Tsr chemoreceptor. These two enzymes must be induced by prior exposure to NE, and cells that are exposed to NE for the first time initially show minimal chemotaxis toward it. The induction of TynA and FeaB requires the QseC quorum sensing histidine kinase, and the signaling cascade requires new protein synthesis. Here, we demonstrate that the cognate response regulator for QseC, the transcription factor QseB, is also required for induction. The related quorum sensing kinase QseE appears not to be part of the signaling pathway, but its cognate response regulator, QseF, which is also a substrate for phosphotransfer from QseC, plays a nonessential role. The promoter of the feaR gene, which encodes a transcription factor that has been shown to be essential for the expression of tynA and feaB, has two predicted QseB-binding sites. One of these sites appears to be in an appropriate position to stimulate transcription from the P1 promoter of the feaR gene. This study unites two well-known pathways: one for expression of genes regulated by catecholamines (QseBC) and one for expression of genes required for metabolism of aromatic amines (FeaR, TynA, and FeaB). This cross talk allows E. coli to convert the host-derived and chemotactically inert NE into the potent bacterial chemoattractant DHMA.IMPORTANCE The chemotaxis of E. coli K-12 to norepinephrine (NE) requires the conversion of NE to 3,4-dihydroxymandleic acid (DHMA), and DHMA is both an attractant and inducer of virulence gene expression for a pathogenic enterohemorrhagic E. coli (EHEC) strain. The induction of virulence by DHMA and NE requires QseC. The results described here show that the cognate response regulator for QseC, QseB, is also required for conversion of NE into DHMA. Production of DHMA requires induction of a pathway involved in the metabolism of aromatic amines. Thus, the QseBC sensory system provides a direct link between virulence and chemotaxis, suggesting that chemotaxis to host signaling molecules may require that those molecules are first metabolized by bacterial enzymes to generate the actual chemoattractant. PMID- 29038254 TI - Characterization of Copy Number Control of Two Haloferax volcanii Replication Origins Using Deletion Mutants and Haloarchaeal Artificial Chromosomes. AB - Haloferax volcanii is polyploid and contains about 20 genome copies under optimal conditions. However, the chromosome copy number is highly regulated and ranges from two during phosphate starvation to more than 40 under conditions of phosphate surplus. The aim of this study was the characterization of the influence of two replication origins on the genome copy number. The origin repeats and the genes encoding origin recognition complex (ORC) proteins were deleted. The core origin oriC1-orc1 (ori1) deletion mutant had a lower genome copy number and a higher level of fitness than the wild type, in stark contrast to the oriC2-orc5 (ori2) deletion mutant. The genes adjacent to ori1 could not be deleted, and thus, at least two of them are probably essential, while deletion of the genes adjacent to ori2 was possible. Various fragments of and around the origins were cloned into a suicide plasmid to generate haloarchaeal artificial chromosomes (HACs). The copy number of the oriC1-orc1 HAC was much higher than that of the oriC2-orc5 HAC. The addition of adjacent genes influenced both the HAC copy number and the chromosome copy number. The results indicate that the origins of H. volcanii are not independent but that the copy number is regulated via a network of genes around the origins.IMPORTANCE Several species of archaea have more than one origin of replication on their major chromosome and are thus the only known prokaryotic species that allow the analysis of the evolution of multiorigin replication. The widely studied Haloferax volcanii H26 strain has a major chromosome with four origins of replication. Two origins, ori1 and ori2, were chosen for an in-depth analysis using deletion mutants and haloarchaeal artificial chromosomes. The analysis was not restricted to the core origin regions; origin-adjacent genes were also included. Because H. volcanii is polyploid, the effects on the chromosome copy number were of specific importance. The results revealed extreme differences between the two origins. PMID- 29038256 TI - Thiol Starvation induces redox-mediated dysregulation of Escherichia coli biofilm components. AB - A hallmark of bacterial biofilms is the production of an extracellular matrix (ECM) that encases and protects the community from environmental stressors. Biofilm formation is an integral portion of the uropathogenic Escherichia coli (UPEC) lifecycle. Approximately 2% of UPEC are cysteine auxotrophs. Here, we investigated how cysteine homeostasis impacted UPEC UTI89 strain biofilm formation and, specifically, the production of the ECM components curli and cellulose. Cysteine auxotrophs produced less cellulose and slightly more curli compared to wildtype (WT) strains, and cysteine auxotrophs formed smooth, non rugose colonies. Cellulose production was restored in cysteine auxotrophs when YfiR was inactivated. YfiR is a redox-sensitive regulator of the diguanylate cyclase, YfiN. Curli production, a temperature-regulated appendage, was independent of temperature in UTI89 cysteine auxotrophs. In a screen of UPEC isolates, we found that ~60% of UPEC cysteine auxotrophs produced curli at 37 degrees C, but only ~2% of cysteine prototrophic UPEC produced curli at 37 degrees C. Interestingly, sub-lethal concentrations of mecillinam and trimethoprim/sulfamethoxazole inhibited curli production, whereas strains auxotrophic for cysteine continued to produce curli even in the presence of mecillinam and trimethoprim/sulfamethoxazole. The dysregulation of ECM components and resistance to mecillinam in cysteine auxotrophs may be linked to hyper oxidation, since the addition of exogenous cysteine or glutathione restored WT biofilm phenotypes to strains unable to produce cysteine and glutathione.Importance Uropathogenic Escherichia coli (UPEC) are the predominant causative agent of urinary tract infections (UTIs). UTIs account for billions of dollars of financial burden to the healthcare industry in the United States annually. Biofilms are an important aspect of the UPEC pathogenesis cascade and for the establishment of chronic infections. Approximately 2% of UPEC strains isolated from UTIs are cysteine auxotrophs, yet there is relatively little known on the biofilm formation of UPEC cysteine auxotrophs. Here we show that cysteine auxotrophs have dysregulated biofilm components due to a change in the redox state of the periplasm. Additionally, we show the relationship between cysteine auxotrophs, biofilms, and antibiotics frequently used to treat UTIs. PMID- 29038255 TI - Studies of Pseudomonas aeruginosa Mutants Indicate Pyoverdine as the Central Factor in Inhibition of Aspergillus fumigatus Biofilm. AB - Pseudomonas aeruginosa and Aspergillus fumigatus are common opportunistic bacterial and fungal pathogens, respectively. They often coexist in airways of immunocompromised patients and individuals with cystic fibrosis, where they form biofilms and cause acute and chronic illnesses. Hence, the interactions between them have long been of interest and it is known that P. aeruginosa can inhibit A. fumigatusin vitro We have approached the definition of the inhibitory P. aeruginosa molecules by studying 24 P. aeruginosa mutants with various virulence genes deleted for the ability to inhibit A. fumigatus biofilms. The ability of P. aeruginosa cells or their extracellular products produced during planktonic or biofilm growth to affect A. fumigatus biofilm metabolism or planktonic A. fumigatus growth was studied in agar and liquid assays using conidia or hyphae. Four mutants, the pvdD pchE, pvdD, lasR rhlR, and lasR mutants, were shown to be defective in various assays. This suggested the P. aeruginosa siderophore pyoverdine as the key inhibitory molecule, although additional quorum sensing regulated factors likely contribute to the deficiency of the latter two mutants. Studies of pure pyoverdine substantiated these conclusions and included the restoration of inhibition by the pyoverdine deletion mutants. A correlation between the concentration of pyoverdine produced and antifungal activity was also observed in clinical P. aeruginosa isolates derived from lungs of cystic fibrosis patients. The key inhibitory mechanism of pyoverdine was chelation of iron and denial of iron to A. fumigatusIMPORTANCE Interactions between human pathogens found in the same body locale are of vast interest. These interactions could result in exacerbation or amelioration of diseases. The bacterium Pseudomonas aeruginosa affects the growth of the fungus Aspergillus fumigatus Both pathogens form biofilms that are resistant to therapeutic drugs and host immunity. P. aeruginosa and A. fumigatus biofilms are found in vivo, e.g., in the lungs of cystic fibrosis patients. Studying 24 P. aeruginosa mutants, we identified pyoverdine as the major anti-A. fumigatus compound produced by P. aeruginosa Pyoverdine captures iron from the environment, thus depriving A. fumigatus of a nutrient essential for its growth and metabolism. We show how microbes of different kingdoms compete for essential resources. Iron deprivation could be a therapeutic approach to the control of pathogen growth. PMID- 29038257 TI - The Novel Transcriptional Regulator LmbU Promotes Lincomycin Biosynthesis through Regulating Expression of Its Target Genes in Streptomyces lincolnensis. AB - Lincomycin A is a clinically important antimicrobial agent produced by Streptomyces lincolnensis In this study, a new regulator designated LmbU (GenBank accession no. ABX00623.1) was identified and characterized to regulate lincomycin biosynthesis in S. lincolnensis wild-type strain NRRL 2936. Both inactivation and overexpression of lmbU resulted in significant influences on lincomycin production. Transcriptional analysis and in vivo neomycin resistance (Neor) reporter assays demonstrated that LmbU activates expression of the lmbA, lmbC, lmbJ, and lmbW genes and represses expression of the lmbK and lmbU genes. Electrophoretic mobility shift assays (EMSAs) demonstrated that LmbU can bind to the regions upstream of the lmbA and lmbW genes through the consensus and palindromic sequence 5'-CGCCGGCG-3'. However, LmbU cannot bind to the regions upstream of the lmbC, lmbJ, lmbK, and lmbU genes as they lack this motif. These data indicate a complex transcriptional regulatory mechanism of LmbU. LmbU homologues are present in the biosynthetic gene clusters of secondary metabolites of many other actinomycetes. Furthermore, the LmbU homologue from Saccharopolyspora erythraea (GenBank accession no. WP_009944629.1) also binds to the regions upstream of lmbA and lmbW, which suggests widespread activity for this regulator. LmbU homologues have no significant structural similarities to other known cluster-situated regulators (CSRs), which indicates that they belong to a new family of regulatory proteins. In conclusion, the present report identifies LmbU as a novel transcriptional regulator and provides new insights into regulation of lincomycin biosynthesis in S. lincolnensisIMPORTANCE Although lincomycin biosynthesis has been extensively studied, its regulatory mechanism remains elusive. Here, a novel regulator, LmbU, which regulates transcription of its target genes in the lincomycin biosynthetic gene cluster (lmb gene cluster) and therefore promotes lincomycin biosynthesis, was identified in S. lincolnensis strain NRRL 2936. Importantly, we show that this new regulatory element is relatively widespread across diverse actinomycetes species. In addition, our findings provide a new strategy for improvement of yield of lincomycin through manipulation of LmbU, and this approach could also be evaluated in other secondary metabolite gene clusters containing this regulatory protein. PMID- 29038258 TI - A Single-Cell View of the BtsSR/YpdAB Pyruvate Sensing Network in Escherichia coli and Its Biological Relevance. AB - Fluctuating environments and individual physiological diversity force bacteria to constantly adapt and optimize the uptake of substrates. We focus here on two very similar two-component systems (TCSs) of Escherichia coli belonging to the LytS/LytTR family: BtsS/BtsR (formerly YehU/YehT) and YpdA/YpdB. Both TCSs respond to extracellular pyruvate, albeit with different affinities, typically during postexponential growth, and each system regulates expression of a single transporter gene, yjiY and yhjX, respectively. To obtain insights into the biological significance of these TCSs, we analyzed the activation of the target promoters at the single-cell level. We found unimodal cell-to-cell variability; however, the degree of variance was strongly influenced by the available nutrients and differed between the two TCSs. We hypothesized that activation of either of the TCSs helps individual cells to replenish carbon resources. To test this hypothesis, we compared wild-type cells with the btsSR ypdAB mutant under two metabolically modulated conditions: protein overproduction and persister formation. Although all wild-type cells were able to overproduce green fluorescent protein (GFP), about half of the btsSR ypdAB population was unable to overexpress GFP. Moreover, the percentage of persister cells, which tolerate antibiotic stress, was significantly lower in the wild-type cells than in the btsSR ypdAB population. Hence, we suggest that the BtsS/BtsR and YpdA/YpdB network contributes to a balancing of the physiological state of all cells within a population.IMPORTANCE Histidine kinase/response regulator (HK/RR) systems enable bacteria to respond to environmental and physiological fluctuations. Escherichia coli and other members of the Enterobacteriaceae possess two similar LytS/LytTR-type HK/RRs, BtsS/BtsR (formerly YehU/YehT) and YpdA/YpdB, which form a functional network. Both systems are activated in response to external pyruvate, typically when cells face overflow metabolism during post-exponential growth. Single-cell analysis of the activation of their respective target genes yjiY and yhjX revealed cell-to-cell variability, and the range of variation was strongly influenced by externally available nutrients. Based on the phenotypic characterization of a btsSR ypdAB mutant compared to the parental strain, we suggest that this TCS network supports an optimization of the physiological state of the individuals within the population. PMID- 29038259 TI - Novel Gene Encoding 5-Aminosalicylate 1,2-Dioxygenase from Comamonas sp. Strain QT12 and Catalytic Properties of the Purified Enzyme. AB - The 1,125-bp mabB gene encoding 5-aminosalicylate (5ASA) 1,2-dioxygenase, a nonheme iron dioxygenase in the bicupin family that catalyzes the cleavage of the 5ASA aromatic ring to form cis-4-amino-6-carboxy-2-oxohexa-3,5-dienoate in the biodegradation of 3-aminobenzoate, was cloned from Comamonas sp. strain QT12 and characterized. The deduced amino acid sequence of the enzyme has low sequence identity with that of other reported ring-cleaving dioxygenases. MabB was heterologously expressed in Escherichia coli cells and purified as a His-tagged enzyme. The optimum pH and temperature for MabB are 8.0 and 10 degrees C, respectively. FeII is required for the catalytic activity of the purified enzyme. The apparent Km and Vmax values of MabB for 5ASA are 52.0 +/- 5.6 MUM and 850 +/- 33.2 U/mg, respectively. The two oxygen atoms incorporated into the product of the MabB-catalyzed reaction are both from the dioxygen molecule. Both 5ASA and gentisate could be converted by MabB; however, the catalytic efficiency of MabB for 5ASA was much higher (~70-fold) than that for gentisate. The mabB-disrupted mutant lost the ability to grow on 3-aminobenzoate, and mabB expression was higher when strain QT12 was cultivated in the presence of 3-aminobenzoate. Thus, 5ASA is the physiological substrate of MabB.IMPORTANCE For several decades, 5 aminosalicylate (5ASA) has been advocated as the drug mesalazine to treat human inflammatory bowel disease and considered the key intermediate in the xenobiotic degradation of many aromatic organic pollutants. 5ASA biotransformation research will help us elucidate the microbial degradation of these pollutants. Most studies have reported that gentisate 1,2-dioxygenases (GDOs) can convert 5ASA with significantly high activity; however, the catalytic efficiency of these enzymes for gentisate is much higher than that for 5ASA. This study showed that MabB can convert 5ASA to cis-4-amino-6-carboxy-2-oxohexa-3,5-dienoate, incorporating two oxygen atoms from the dioxygen molecule into the product. Unlike GDOs, MabB uses 5ASA instead of gentisate as the primary substrate. mabB is the first reported 5-aminosalicylate 1,2-dioxygenase gene. PMID- 29038260 TI - Meropenem-Vaborbactam Resistance Selection, Resistance Prevention, and Molecular Mechanisms in Mutants of KPC-Producing Klebsiella pneumoniae. AB - Vaborbactam (formerly RPX7009) is a new beta-lactamase inhibitor based on a cyclic boronic acid pharmacophore with potent inhibitory activity against Klebsiella pneumoniaecarbapenemases (KPC). It has been developed in combination with meropenem. The objective of these studies was to identify the concentrations of both agents associated with the selection or prevention of single-step mutations leading to reduced sensitivity to the combination and to characterize the selected mutations. Eighteen strains of KPC-producing Klebsiella pneumoniae with various degrees of sensitivity to meropenem (MICs, 8 to 512 MUg/ml) and meropenem-vaborbactam (MICs, <=0.06 to 32 MUg/ml) and preexisting resistance mechanisms were selected from a worldwide collection of isolates recovered from surveillance studies, emphasizing strains for which MICs were in the upper range of the meropenem-vaborbactam MIC distribution. Meropenem and vaborbactam at 8 MUg/ml each suppressed the drug resistance mutation frequency to <1 * 10-8 in 77.8% (14/18) of strains, and all strains were inhibited when the meropenem concentration was increased to 16 MUg/ml. Mutants selected at lower drug concentrations showed phenotypes associated with previously described carbapenem resistance mechanisms, including ompK36 inactivation in mutants selected from OmpK36-proficient strains and an increased blaKPC gene copy number in strains with partially functional ompK36 No mutations in the coding region of blaKPC were identified. These data indicate that the selection of mutants with reduced sensitivity to meropenem-vaborbactam from KPC-producing Klebsiella pneumoniae strains is associated with previously described mechanisms involving porin mutations and the increase in the blaKPC gene copy number and not changes in the KPC enzyme and can be prevented by the drug concentrations achieved with optimal dosing of the combination. PMID- 29038261 TI - A Retrospective Cohort Analysis Shows that Coadministration of Minocycline with Colistin in Critically Ill Patients Is Associated with Reduced Frequency of Acute Renal Failure. AB - Nonclinical studies have suggested that oxidative damage, caspase-mediated apoptosis, and inducible nitric oxide synthase levels may be involved in the pathogenesis of colistin (CST)-associated acute renal failure. MIN inhibits caspase 1, caspase 3, and inducible nitric oxide synthase, leading to the hypothesis that coadministration of CST with MIN (CST-MIN) may reduce the incidence of acute renal failure as well as produce additive or synergistic antimicrobial effects. A multicenter retrospective cohort study was conducted using the Premier Research database to examine the impact of CST-MIN on acute renal failure. Inclusion criteria were as follows: age of >=18 years, intensive care unit admission at CST initiation, primary International Classification of Diseases 9 (ICD-9) diagnosis of pneumonia or sepsis, nondialysis at hospital admission, and discharge between January 2010 and December 2015. ICD-9 code 584.XX or ICD-10 code N17 was used to define acute renal failure. Baseline comparisons, 1:8 propensity score matching, and confirmatory logistic regression analyses were conducted. In total, 4,817 patients received CST and met inclusion criteria; 93 received CST-MIN. Unadjusted frequency of acute renal failure was significantly lower in patients receiving CST-MIN than CST (11.8% versus 23.7%, P = 0.007). Similar results were seen in propensity score matching (12.0% versus 22.3%, P = 0.031) and logistic regression analyses (odds ratio of 0.403, P = 0.006). Mortalities and 30-day readmission rates were similar between groups. The acute renal failure rate was not impacted by prevalence of baseline renal disease. CST-MIN in critically ill patients may reduce CST-associated acute renal failure. Further evaluation of this combination in prospective clinical studies is warranted. PMID- 29038262 TI - Severe Infusion-Related Adverse Events and Renal Failure in Patients Receiving High-Dose Intravenous Polymyxin B. AB - The use of very high doses of polymyxin B (PMB) against carbapenem-resistant Gram negative bacilli has been addressed in in vitro experiments as a strategy to improve bacterial killing and suppress resistance emergence. However, the toxicities of very high doses in patients are unknown. We conducted a retrospective cohort study assessing patients receiving PMB at >3 mg/kg of body weight/day or a total dose of >=250 mg/day. The main outcomes were severe infusion-related adverse events according to the Common Terminology Criteria for Adverse Events and the renal failure category of RIFLE criteria for acute kidney injury (AKI) during treatment. A total of 222 patients were included for analysis of infusion-related events. The mean PMB dose was 3.61 +/- 0.97 mg/kg/day (median total dose/day = 268 mg). Severe infusion-related adverse events occurred in two patients, resulting in an incidence of 0.9% (95% confidence interval, 0.2 to 3.2%); one was classified as a life-threatening adverse event, and one was classified as a severe adverse event. Renal failure was analyzed in 115 patients, and 25 (21.7%) patients presented renal failure (54 [47.0%] developed any degree of AKI, categorized as risk [27.8%], injury [25.9%], and failure [46.3%]). Treatment with a vasoactive drug, concomitant treatment with nephrotoxic drugs, and baseline creatinine clearance were independent risk factors for renal failure. Neither the PMB daily dose scaled by body weight nor the total daily dose was associated with renal failure. The in-hospital mortality rate was 60% (134 patients): 26% of deaths (57 patients) occurred during treatment, and none occurred during infusion. Our data suggest that high-dose schemes have an acceptable safety profile and could be further tested in clinical trials assessing strategies to improve patient outcomes and minimize the emergence of PMB resistance. PMID- 29038263 TI - In Vitro Combination of Isavuconazole with Echinocandins against Azole Susceptible and -Resistant Aspergillus spp. AB - In vitro combinations of isavuconazole with echinocandins were evaluated against 30 Aspergillus strains with a two-dimensional checkerboard microdilution method and an agar-based diffusion method. With the checkerboard method, the three combinations showed indifferent interactions for all strains. With the agar-based method, indifferent interactions were found for all strains for isavuconazole micafungin and isavuconazole-anidulafungin. For the isavuconazole-caspofungin combination, indifference was found in 24/30 strains, synergism in 4/30 strains, and antagonism in 2/30 strains. PMID- 29038264 TI - Clinical Evolution of New Delhi Metallo-beta-Lactamase (NDM) Optimizes Resistance under Zn(II) Deprivation. AB - Carbapenem-resistant Enterobacteriaceae (CRE) are rapidly spreading and taking a staggering toll on all health care systems, largely due to the dissemination of genes coding for potent carbapenemases. An important family of carbapenemases are the Zn(II)-dependent beta-lactamases, known as metallo-beta-lactamases (MBLs). Among them, the New Delhi metallo-beta-lactamase (NDM) has experienced the fastest and widest geographical spread. While other clinically important MBLs are soluble periplasmic enzymes, NDMs are lipoproteins anchored to the outer membrane in Gram-negative bacteria. This unique cellular localization endows NDMs with enhanced stability upon the Zn(II) starvation elicited by the immune system response at the sites of infection. Since the first report of NDM-1, new allelic variants (16 in total) have been identified in clinical isolates differing by a limited number of substitutions. Here, we show that these variants have evolved by accumulating mutations that enhance their stability or the Zn(II) binding affinity in vivo, overriding the most common evolutionary pressure acting on catalytic efficiency. We identified the ubiquitous substitution M154L as responsible for improving the Zn(II) binding capabilities of the NDM variants. These results also reveal that Zn(II) deprivation imposes a strict constraint on the evolution of this MBL, overriding the most common pressures acting on catalytic performance, and shed light on possible inhibitory strategies. PMID- 29038265 TI - Verapamil Increases the Bioavailability and Efficacy of Bedaquiline but Not Clofazimine in a Murine Model of Tuberculosis. AB - Drug efflux pumps play important roles in intrinsic and acquired drug resistance. Verapamil, an efflux inhibitor that enhances the activity of bedaquiline, clofazimine, and other drugs against Mycobacterium tuberculosis, has been proposed as a potential adjunctive agent for treatment of tuberculosis (TB). However, the extent to which verapamil enhances in vivo efficacy by inhibiting bacterial efflux pumps versus inhibiting mammalian drug transporters to improve oral bioavailability has not been delineated. We found that verapamil potentiated the in vitro activity of bedaquiline and clofazimine against M. tuberculosis clinical isolates, including those harboring rv0678 mutations. Verapamil increased the efficacy of bedaquiline in a murine TB model by the same extent to which it increased systemic bedaquiline exposure. However, verapamil showed no effect on the oral bioavailability or efficacy of clofazimine in mice. The addition of verapamil increased the sterilizing activity of a regimen composed of bedaquiline, clofazimine, and pyrazinamide. These results confirm that verapamil has adjunctive activity in vivo, but they also demonstrate that the adjunctive effect is likely due to enhanced systemic exposure to companion drugs via effects on mammalian transporters, rather than inhibition of bacterial pumps. Therefore, there may be no advantage to administering verapamil versus increasing the doses of companion drugs. PMID- 29038266 TI - Potency of Meropenem-Vaborbactam in Lung Surfactant. AB - This study investigated whether pulmonary surfactant has an effect on the in vitro antibacterial activity of either meropenem alone or meropenem in combination with vaborbactam at a fixed concentration of 8 MUg/ml against several Klebsiella pneumoniae carbapenemase (KPC)-producing strains of Gram-negative bacteria. Results showed that the potency of meropenem alone and that of meropenem-vaborbactam were not affected when tested with pulmonary surfactant. PMID- 29038267 TI - A Retrospective Analysis of Treatment and Clinical Outcomes among Patients with Methicillin-Susceptible Staphylococcus aureus Bloodstream Isolates Possessing Detectable mecA by a Commercial PCR Assay Compared to Patients with Methicillin Resistant Staphylococcus aureus Bloodstream Isolates. AB - mecA-positive Staphylococcus aureus isolates phenotypically susceptible to cefoxitin (mecA-methicillin-sensitive S. aureus [MSSA]) have been identified. We describe the treatment and outcomes among patients with mecA-MSSA bloodstream infections (BSI) and MRSA BSI matched 1:1 for age, BSI origin, and BSI type (n = 17 per group). Compared to MRSA BSI patients, mecA-MSSA BSI patients more often experienced clinical failure (58.8% and 11.8%, P = 0.010), driven largely by persistent bacteremia (35.3% and 11.8%). mecA-MSSA BSI patients may be at higher risk for poor clinical outcomes. PMID- 29038268 TI - Urinary Tract Conditions Affect Fosfomycin Activity against Escherichia coli Strains Harboring Chromosomal Mutations Involved in Fosfomycin Uptake. AB - The steps by which Escherichia coli strains harboring mutations related to fosfomycin (FOS) resistance arise and spread during urinary tract infections (UTIs) are far from being understood. The aim of this study was to evaluate the effects of urine, pH, and anaerobiosis on FOS activity against a set of isogenic strains carrying the most prevalent chromosomal mutations conferring FOS resistance (DeltauhpT, DeltaglpT, DeltacyaA, and DeltaptsI), either singly or in combination. We also studied fosfomycin-resistant E. coli clinical isolates from patients with UTI. Our results demonstrate that urinary tract physiological conditions might have a profound impact on FOS activity against strains with chromosomal FOS resistance mutations. Specifically, acidic pH values and anaerobiosis convert most of the strains categorized as resistant to fosfomycin according to the international guidelines to a susceptible status. Therefore, urinary pH values may have practical interest in the management of UTIs. Finally, our results, together with the high fitness cost associated with FOS resistance mutations, might explain the low prevalence of fosfomycin-resistant E. coli variants in UTIs. PMID- 29038270 TI - Activity of Meropenem-Vaborbactam against Carbapenem-Resistant Enterobacteriaceae in a Murine Model of Pyelonephritis. AB - The recently approved combination of meropenem and vaborbactam (Vabomere) is highly active against Gram-negative pathogens, especially Klebsiella pneumoniae carbapenemase (KPC)-producing, carbapenem-resistant Enterobacteriaceae We evaluated the efficacy of meropenem-vaborbactam against three clinically relevant isolates in a murine pyelonephritis model. The data indicate that the combination of meropenem and vaborbactam significantly increased bacterial killing compared to that with the untreated controls. These data suggest that this combination may have utility in the treatment of complicated urinary tract infections due to KPC producing, carbapenem-resistant Enterobacteriaceae. PMID- 29038269 TI - A Systematic Review and Meta-analyses of the Clinical Epidemiology of Carbapenem Resistant Enterobacteriaceae. AB - Carbapenem-resistant Enterobacteriaceae (CRE) are major health care-associated pathogens and responsible for hospital outbreaks worldwide. To prevent a further increase in CRE infections and to improve infection prevention strategies, it is important to summarize the current knowledge about CRE infection prevention in hospital settings. This systematic review aimed to identify risk factors for CRE acquisition among hospitalized patients. In addition, we summarized the environmental sources/reservoirs and the most successful infection prevention strategies related to CRE. A total of 3,983 potentially relevant articles were identified and screened. Finally, we included 162 studies in the systematic review, of which 69 studies regarding risk factors for CRE acquisition were included in the random-effects meta-analysis studies. The meta-analyses regarding risk factors for CRE acquisition showed that the use of medical devices generated the highest pooled estimate (odds ratio [OR] = 5.09; 95% confidence interval [CI] = 3.38 to 7.67), followed by carbapenem use (OR = 4.71; 95% CI = 3.54 to 6.26). To control hospital outbreaks, bundled interventions, including the use of barrier/contact precautions for patients colonized or infected with CRE, are needed. In addition, it is necessary to optimize the therapeutic approach, which is an important message to infectious disease specialists, who need to be actively involved in a timely manner in the treatment of patients with known CRE infections or suspected carriers of CRE. PMID- 29038271 TI - Evaluation of Antifungal Efficacy of Three New Cyclic Lipopeptides of the Class Bacillomycin from Bacillus subtilis RLID 12.1. AB - New lipopeptide homologues (AF3, AF4, and AF5) with antifungal activities against Candida and Cryptococcus spp. were purified from a cell-free supernatant of Bacillus subtilis RLID 12.1. The lipopeptides AF3, AF4, and AF5 were identified with the same peptide sequence Asn-Pro-Tyr-Asn-Gln-Thr-Ser with variations in the fatty acid branching type and chain length (anteiso-C17, iso-C17, and iso-C18, respectively). Upon comparing the three homologues for MICs against 81 Candida (n = 64) and Cryptococcus (n = 17) clinical isolates and their cytotoxicities, we found that AF4 was the most promising antifungal lipopeptide, since it demonstrated 100% inhibition at geometric mean MICs of 3.31, 3.41, 3.48, and 2.83 MUg/ml against Candida albicans, Candida tropicalis, Candida auris, and Cryptococcus neoformans, respectively, with low hemolysis values (<6%) and 50% inhibitory concentrations (13.31 MUg/ml). The additive effects among the homologues AF3, AF4, and AF5 were evaluated against three Candida species, along with the cytotoxicity studies. Five combinations exhibited good additive interaction effects: AF3/AF4 (at corresponding concentrations of 4 and 4 MUg/ml [4/4 MUg/ml]), AF3/AF5 (4/4 MUg/ml), AF3/AF5 (2/4 MUg/ml), AF4/AF5 (4/4 MUg/ml), and AF4/AF5 (2/4 MUg/ml) in planktonic cell inhibition and AF3/AF4 (4/4 MUg/ml), AF3/AF5 (4/4 MUg/ml), and AF3/AF5 (2/4 MUg/ml) in the inhibition of biofilm formation. However, combinations AF3/AF4 and AF3/AF5, which showed >70% cell survival with low hemolysis (<5%), were found to be comparatively effective. We describe here the additive effects of lipopeptide homologues showing reduced cytotoxicity against mammalian cells; these combinations might serve as a potent antibiofilm-forming substitute. PMID- 29038272 TI - Population Pharmacokinetic Analysis of Cefiderocol, a Parenteral Siderophore Cephalosporin, in Healthy Subjects, Subjects with Various Degrees of Renal Function, and Patients with Complicated Urinary Tract Infection or Acute Uncomplicated Pyelonephritis. AB - Cefiderocol, a novel parenteral siderophore cephalosporin, exhibits potent efficacy against most Gram-negative bacteria, including carbapenem-resistant strains. The aim of this study was to perform a population pharmacokinetic (PK) analysis based on plasma cefiderocol concentrations in healthy subjects, subjects with various degrees of renal function, and patients with complicated urinary tract infection (cUTI) or acute uncomplicated pyelonephritis (AUP) caused by Gram negative pathogens and to calculate the fraction of the time during the dosing interval where the free drug concentration in plasma exceeds the MIC (fTMIC). Population PK models were developed with three renal function markers, body surface area-adjusted estimated glomerular filtration rate (eGFR), absolute eGFR, and creatinine clearance, on the basis of 2,571 plasma concentrations from 91 subjects without infection and 238 patients with infection. The population PK models with each renal function marker adequately described the plasma cefiderocol concentrations. Clear relationships of total clearance (CL) to all renal function markers were observed. Body weight and disease status (with or without infection) were also significant covariates. The CL in patients with infection was 26% higher than that in subjects without infection. The fTMIC values were more than 75% in all patients (and were 100% in most patients), suggesting that a sufficient exposure to cefiderocol was provided by the tested dose regimens (2 g every 8 h as the standard dose regimen) for the treatment of cUTI or AUP caused by Gram-negative pathogens. PMID- 29038273 TI - Pharmacokinetic Modeling of Voriconazole To Develop an Alternative Dosing Regimen in Children. AB - The pharmacokinetic variability of voriconazole (VCZ) in immunocompromised children is high, and adequate exposure, particularly in the first days of therapy, is uncertain. A population pharmacokinetic model was developed to explore VCZ exposure in plasma after alternative dosing regimens. Concentration data were obtained from a pediatric phase II study. Nonlinear mixed effects modeling was used to develop the model. Monte Carlo simulations were performed to test an array of three-times-daily (TID) intravenous dosing regimens in children 2 to 12 years of age. A two-compartment model with first-order absorption, nonlinear Michaelis-Menten elimination, and allometric scaling best described the data (maximal kinetic velocity for nonlinear Michaelis-Menten clearance [Vmax] = 51.5 mg/h/70 kg, central volume of distribution [V1] = 228 liters/70 kg, intercompartmental clearance [Q] = 21.9 liters/h/70 kg, peripheral volume of distribution [V2] = 1,430 liters/70 kg, bioavailability [F] = 59.4%, Km = fixed value of 1.15 mg/liter, absorption rate constant = fixed value of 1.19 h-1). Interindividual variabilities for Vmax, V1, Q, and F were 63.6%, 45.4%, 67%, and 1.34% on a logit scale, respectively, and residual variability was 37.8% (proportional error) and 0.0049 mg/liter (additive error). Monte Carlo simulations of a regimen of 9 mg/kg of body weight TID simulated for 24, 48, and 72 h followed by 8 mg/kg two times daily (BID) resulted in improved early target attainment relative to that with the currently recommended BID dosing regimen but no increased rate of accumulation thereafter. Pharmacokinetic modeling suggests that intravenous TID dosing at 9 mg/kg per dose for up to 3 days may result in a substantially higher percentage of children 2 to 12 years of age with adequate exposure to VCZ early during treatment. Before implementation of this regimen in patients, however, validation of exposure, safety, and tolerability in a carefully designed clinical trial would be needed. PMID- 29038274 TI - Thrombocytopenia with Tedizolid and Linezolid. AB - Several studies have suggested the risk of thrombocytopenia with tedizolid, a second-in-class oxazolidinone antibiotic (approved June 2014), is less than that observed with linezolid (first-in-class oxazolidinone). Using data from the Food and Drug Administration adverse event reporting system (July 2014 through December 2016), we observed significantly increased risks of thrombocytopenia of similar magnitudes with both antibiotics: linezolid reporting odds ratio [ROR], 37.9 (95% confidence interval [CI], 20.78 to 69.17); tedizolid ROR, 34.0 (95% CI, 4.67 to 247.30). PMID- 29038275 TI - In Vivo Bioluminescent Monitoring of Therapeutic Efficacy and Pharmacodynamic Target Assessment of Antofloxacin against Escherichia coli in a Neutropenic Murine Thigh Infection Model. AB - Antimicrobial resistance among uropathogens has increased the rates of infection related morbidity and mortality. Antofloxacin is a novel fluoroquinolone with broad-spectrum antibacterial activity against urinary Gram-negative bacilli, such as Escherichia coli This study monitored the in vivo efficacy of antofloxacin using bioluminescent imaging and determined pharmacokinetic (PK)/pharmacodynamic (PD) targets against E. coli isolates in a neutropenic murine thigh infection model. The PK properties were determined after subcutaneous administration of antofloxacin at 2.5, 10, 40, and 160 mg/kg of body weight. Following thigh infection, the mice were treated with 2-fold-increasing doses of antofloxacin from 2.5 to 80 mg/kg administered every 12 h. Efficacy was assessed by quantitative determination of the bacterial burdens in thigh homogenates and was compared with the bioluminescent density. Antofloxacin demonstrated both static and killing endpoints in relation to the initial burden against all study strains. The PK/PD index area under the concentration-time curve (AUC)/MIC correlated well with efficacy (R2 = 0.92), and the dose-response relationship was relatively steep, as observed with escalating doses of antofloxacin. The mean free drug AUC/MIC targets necessary to produce net bacterial stasis and 1-log10 and 2-log10 kill for each isolate were 38.7, 66.1, and 147.0 h, respectively. In vivo bioluminescent imaging showed a rapid decrease in the bioluminescent density at free drug AUC/MIC exposures that exceeded the stasis targets. The integration of these PD targets combined with the results of PK studies with humans will be useful in setting optimal dosing regimens for the treatment of urinary tract infections due to E. coli. PMID- 29038276 TI - Reduced Chlorhexidine and Daptomycin Susceptibility in Vancomycin-Resistant Enterococcus faecium after Serial Chlorhexidine Exposure. AB - Vancomycin-resistant Enterococcus faecium strains (VREfm) are critical public health concerns because they are among the leading causes of hospital-acquired bloodstream infections. Chlorhexidine (CHX) is a bisbiguanide cationic antiseptic that is routinely used for patient bathing and other infection control practices. VREfm are likely frequently exposed to CHX; however, the long-term effects of CHX exposure have not been studied in enterococci. In this study, we serially exposed VREfm to increasing concentrations of CHX for a period of 21 days in two independent experimental evolution trials. Reduced CHX susceptibility emerged (4 fold shift in CHX MIC). Subpopulations with reduced daptomycin (DAP) susceptibility were detected, which were further analyzed by genome sequencing and lipidomic analysis. Across the trials, we identified adaptive changes in genes with predicted or experimentally confirmed roles in chlorhexidine susceptibility (efrE), global nutritional stress response (relA), nucleotide metabolism (cmk), phosphate acquisition (phoU), and glycolipid biosynthesis (bgsB), among others. Moreover, significant alterations in membrane phospholipids were identified for some populations with reduced DAP susceptibility. Our results are clinically significant because they identify a link between serial subinhibitory CHX exposure and reduced DAP susceptibility. In addition, the CHX induced genetic and lipidomic changes described in this study offer new insights into the mechanisms underlying the emergence of antibiotic resistance in VREfm. PMID- 29038277 TI - Dilution Factor of Quantitative Bacterial Cultures Obtained by Bronchoalveolar Lavage in Patients with Ventilator-Associated Bacterial Pneumonia. AB - Ventilator-associated bacterial pneumonia (VABP) is a difficult therapeutic problem. Considerable controversy exists regarding the optimal chemotherapy for this entity. The recent guidelines of the Infectious Diseases Society of America and the American Thoracic Society recommend a 7-day therapeutic course for VABP based on the balance of no negative impact on all-cause mortality, less resistance emergence, and fewer antibiotic treatment days, counterbalanced with a higher relapse rate for patients whose pathogen is a nonfermenter. The bacterial burden causing an infection has a substantial impact on treatment outcome and resistance selection. We describe the baseline bronchoalveolar lavage (BAL) fluid burden of organisms in suspected VABP patients screened for inclusion in a clinical trial. We measured the urea concentrations in plasma and BAL fluid to provide an index of the dilution of the bacterial and drug concentrations in the lung epithelial lining fluid introduced by the BAL procedure. We were then able to calculate the true bacterial burden as the diluted colony count times the dilution factor. The median dilution factor was 28.7, with the interquartile range (IQR) being 11.9 to 53.2. Median dilution factor-corrected colony counts were 6.18 log10(CFU/ml) [IQR, 5.43 to 6.46 log10(CFU/ml)]. In a subset of patients, repeat BAL on day 5 showed a good stability of the dilution factor. We previously showed that large bacterial burdens reduce or stop bacterial killing by granulocytes. (This study has been registered at ClinicalTrials.gov under registration no. NCT01570192.). PMID- 29038278 TI - Fidaxomicin and OP-1118 Inhibit Clostridium difficile Toxin A- and B-Mediated Inflammatory Responses via Inhibition of NF-kappaB Activity. AB - Clostridium difficile causes diarrhea and colitis by releasing toxin A and toxin B. In the human colon, both toxins cause intestinal inflammation and stimulate tumor necrosis factor alpha (TNF-alpha) expression via the activation of NF kappaB. It is well established that the macrolide antibiotic fidaxomicin is associated with reduced relapses of C. difficile infection. We showed that fidaxomicin and its primary metabolite OP-1118 significantly inhibited toxin A mediated intestinal inflammation in mice in vivo and toxin A-induced cell rounding in vitro We aim to determine whether fidaxomicin and OP-1118 possess anti-inflammatory effects against toxin A and toxin B in the human colon and examine the mechanism of this response. We used fresh human colonic explants, NCM460 human colonic epithelial cells, and RAW264.7 mouse macrophages to study the mechanism of the activity of fidaxomicin and OP-1118 against toxin A- and B mediated cytokine expression and apoptosis. Fidaxomicin and OP-1118 dose dependently inhibited toxin A- and B-induced TNF-alpha and interleukin-1beta (IL 1beta) mRNA expression and histological damage in human colonic explants. Fidaxomicin and OP-1118 inhibited toxin A-mediated NF-kappaB phosphorylation in human and mouse intestinal mucosae. Fidaxomicin and OP-1118 also inhibited toxin A-mediated NF-kappaB phosphorylation and TNF-alpha expression in macrophages, which was reversed by the NF-kappaB activator phorbol myristate acetate (PMA). Fidaxomicin and OP-1118 prevented toxin A- and B-mediated apoptosis in NCM460 cells, which was reversed by the addition of PMA. PMA reversed the cytoprotective effect of fidaxomicin and OP-1118 in toxin-exposed human colonic explants. Fidaxomicin and OP-1118 inhibit C. difficile toxin A- and B-mediated inflammatory responses, NF-kappaB phosphorylation, and tissue damage in the human colon. PMID- 29038279 TI - A CTG Clade Candida Yeast Genetically Engineered for the Genotype-Phenotype Characterization of Azole Antifungal Resistance in Human-Pathogenic Yeasts. AB - A strain of the opportunistic pathogenic yeast Candida lusitaniae was genetically modified for use as a cellular model for assessing by allele replacement the impact of lanosterol C14alpha-demethylase ERG11 mutations on azole resistance. Candida lusitaniae was chosen because it is susceptible to azole antifungals, it belongs to the CTG clade of yeast, which includes most of the Candida species pathogenic for humans, and it is haploid and easily amenable to genetic transformation and molecular modeling. In this work, allelic replacement is targeted at the ERG11 locus by the reconstitution of a functional auxotrophic marker in the 3' intergenic region of ERG11 Homologous and heterologous ERG11 alleles are expressed from the resident ERG11 promoter of C. lusitaniae, allowing accurate comparison of the phenotypic change in azole susceptibility. As a proof of concept, we successfully expressed in C. lusitaniae different ERG11 alleles, either bearing or not bearing mutations retrieved from a clinical context, from two phylogenetically distant yeasts, C. albicans and Kluyveromyces marxianusCandida lusitaniae constitutes a high-fidelity expression system, giving specific Erg11p-dependent fluconazole MICs very close to those observed with the ERG11 donor strain. This work led us to characterize the phenotypic effect of two kinds of mutation: mutation conferring decreased fluconazole susceptibility in a species-specific manner and mutation conferring fluconazole resistance in several yeast species. In particular, a missense mutation affecting amino acid K143 of Erg11p in Candida species, and the equivalent position K151 in K. marxianus, plays a critical role in fluconazole resistance. PMID- 29038280 TI - Targeting Human-Cytomegalovirus-Infected Cells by Redirecting T Cells Using an Anti-CD3/Anti-Glycoprotein B Bispecific Antibody. AB - The host immune response to human cytomegalovirus (HCMV) is effective against HCMV reactivation from latency, though not sufficient to clear the virus. T cells are primarily responsible for the control of viral reactivation. When the host immune system is compromised, as in transplant recipients with immunosuppression, HCMV reactivation and progressive infection can cause serious morbidity and mortality. Adoptive T cell therapy is effective for the control of HCMV infection in transplant recipients. However, it is a highly personalized therapeutic regimen and is difficult to implement in routine clinical practice. In this study, we explored a bispecific-antibody strategy to direct non-HCMV-specific T cells to recognize and exert effector functions against HCMV-infected cells. Using a knobs-into-holes strategy, we constructed a bispecific antibody in which one arm is specific for CD3 and can trigger T cell activation, while the other arm, specific for HCMV glycoprotein B (gB), recognizes and marks HCMV-infected cells based on the expression of viral gB on their surfaces. We showed that this bispecific antibody was able to redirect T cells with specificity for HCMV infected cells in vitro In the presence of HCMV infection, the engineered antibody was able to activate T cells with no HCMV specificity for cytokine production, proliferation, and the expression of phenotype markers unique to T cell activation. These results suggested the potential of engineered bispecific antibodies, such as the construct described here, as prophylactic or therapeutic agents against HCMV reactivation and infection. PMID- 29038281 TI - Putative Integrative Mobile Elements That Exploit the Xer Recombination Machinery Carrying blaIMI-Type Carbapenemase Genes in Enterobacter cloacae Complex Isolates in Singapore. AB - Whole-genome sequencing was performed on 16 isolates of the carbapenemase producing Enterobacter cloacae complex to determine the flanking regions of blaIMI-type genes. Phylogenetic analysis of multilocus sequence typing (MLST) targets separated the isolates into 4 clusters. The blaIMI-type genes were all found on Xer-dependent integrative mobile elements (IMEX). The IMEX elements of 5 isolates were similar to those described in Canada, while the remainder were novel. Five isolates had IMEX elements lacking a resolvase and recombinase. PMID- 29038282 TI - Intracellular Tenofovir-Diphosphate and Emtricitabine-Triphosphate in Dried Blood Spots following Directly Observed Therapy. AB - Studies of daily emtricitabine-tenofovir disoproxil fumarate (FTC-TDF) for HIV preexposure prophylaxis (PrEP) in men who have sex with men (MSM) modeled intracellular tenofovir-diphosphate (TFV-DP) in dried blood spots (DBS) to assess adherence and corresponding PrEP outcomes. We conducted a prospective, randomized, crossover pharmacokinetic study of TFV-DP in DBS during 33%, 67%, or 100% of daily dosing under directly observed therapy (DOT). Participants were assigned to two 12-week dosing regimens, separated by a 12-week washout. Forty eight adults (25 women) from Denver and San Francisco were included. TFV-DP exhibited a median half-life of 17 days, reaching steady state in 8 weeks. TFV-DP was dose proportional with mean (SD) steady-state concentrations of 530 (159), 997 (267), and 1,605 (405) fmol/punch for the 33%, 67%, and 100% arms, respectively. Prior work in MSM demonstrated clinically meaningful TFV-DP thresholds of 350, 700, and 1,250 fmol/punch, which were estimated 25th percentiles for 2, 4, and 7 doses/week. In the present study, corresponding TFV DP was within 3% of the prior estimates, and subgroups by site, race, and sex were within 14% of prior estimates, although males had 17.6% (95% confidence intervals [CIs], 6.5, 27.4%) lower TFV-DP than females. The thresholds of 350, 700, and 1,250 fmol/punch were achieved by 75% of men taking >=1.2, 3.2, and 6 doses/week and 75% of women taking >=0.6, 2.0, and 5.3 doses/week, indicating that lower dosing reached these thresholds for both sexes. In conclusion, TFV-DP arising from DOT was similar to previous estimates and is useful for interpreting PrEP adherence and study outcomes. (This study has been registered at ClinicalTrials.gov under identifier NCT02022657.). PMID- 29038283 TI - CTX-M-15-Producing Shewanella Species Clinical Isolate Expressing OXA-535, a Chromosome-Encoded OXA-48 Variant, Putative Progenitor of the Plasmid-Encoded OXA 436. AB - Shewanella spp. constitute a reservoir of antibiotic resistance determinants. In a bile sample, we identified three extended-spectrum-beta-lactamase (ESBL) producing bacteria (Escherichia coli, Klebsiella pneumoniae, and Shewanella sp. strain JAB-1) isolated from a child suffering from cholangitis. Our objectives were to characterize the genome and the resistome of the first ESBL-producing isolate of the genus Shewanella and determine whether plasmidic exchange occurred between the three bacterial species. Bacterial isolates were characterized using matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS), standard biochemical tools, and antimicrobial susceptibility testing. Shewanella sp. JAB-1 and ESBL gene-encoding plasmids were characterized using PacBio and Illumina whole-genome sequencing, respectively. The Shewanella sp. JAB-1 chromosome-encoded OXA-48 variant was cloned and functionally characterized. Whole-genome sequencing (WGS) of the Shewanella sp. clinical isolate JAB-1 revealed the presence of a 193-kb plasmid belonging to the IncA/C incompatibility group and harboring two ESBL genes, blaCTX-M-15 and blaSHV 2ablaCTX-M-15 gene-carrying plasmids belonging to the IncY and IncR incompatibility groups were also found in the E. coli and K. pneumoniae isolates from the same patient, respectively. A comparison of the blaCTX-M-15 genetic environment indicated the independent origin of these plasmids and dismissed in vivo transfers. Furthermore, characterization of the resistome of Shewanella sp. JAB-1 revealed the presence of a chromosome-carried blaOXA-535 gene, likely the progenitor of the plasmid-carried blaOXA-436 gene, a novel blaOXA-48-like gene. The expression of blaOXA-535 in E. coli showed the carbapenem-hydrolyzing activity of OXA-535. The production of OXA-535 in Shewanella sp. JAB-1 could be evidenced using molecular and immunoenzymatic tests, but not with biochemical tests that monitor carbapenem hydrolysis. In this study, we have identified a CTX M-15-producing Shewanella species that was responsible for a hepatobiliary infection and that is likely the progenitor of OXA-436, a novel plasmid-encoded OXA-48-like class D carbapenemase. PMID- 29038284 TI - Evaluation of the Microbiological Efficacy of a Single 2-Gram Dose of Extended Release Azithromycin by Population Pharmacokinetics and Simulation in Japanese Patients with Gonococcal Urethritis. AB - The objective of this study was to analyze the relationship between the pharmacokinetic (PK)/pharmacodynamic (PD) parameters of a single 2-g dose of extended-release formulation of azithromycin (AZM-SR) and its microbiological efficacy against gonococcal urethritis. Fifty male patients with gonococcal urethritis were enrolled in this study. In 36 patients, the plasma AZM concentrations were measured using liquid chromatography-tandem mass spectrometry, the AZM MIC values for the Neisseria gonorrhoeae isolates were determined, and the microbiological outcomes were assessed. AZM-SR monotherapy eradicated N. gonorrhoeae in 30 (83%) of the 36 patients. AZM MICs ranged from 0.03 to 2 mg/liter. The mean value of the area under the concentration-time curve (AUC), estimated by population PK analysis using a two-compartment model, was 20.8 mg . h/liter. Logistic regression analysis showed that the PK/PD target value required to predict an N. gonorrhoeae eradication rate of >=95% was a calculated AUC/MIC of >=59.5. The AUC/MIC value was significantly higher in patients who achieved microbiological cure than in patients who achieved microbiological failure. Monte Carlo simulation using this MIC distribution revealed that the probability that AZM-SR monotherapy would produce an AUC/MIC exceeding the AUC/MIC target of 59.5 was 47%. Furthermore, the MIC distribution for strains isolated in this study was mostly consistent with that for strains currently circulating in Japan. In conclusion, in Japan, AZM-SR monotherapy may not be effective against gonococcal urethritis. Therefore, use of a single 2-g dose of AZM-SR either with or without other antibiotics could be an option to treat gonococcal urethritis if patients are allergic to ceftriaxone and spectinomycin or are diagnosed to be infected with an AZM-sensitive strain. PMID- 29038285 TI - Metabolic Effects of Diet and Exercise in Patients with Moderate to Severe CKD: A Randomized Clinical Trial. AB - CKD is steadily increasing along with obesity worldwide. Furthermore, obesity is a proinflammatory risk factor for progression of CKD and cardiovascular disease. We tested the hypothesis that implementation of caloric restriction and aerobic exercise is feasible and can improve the proinflammatory metabolic milieu in patients with moderate to severe CKD through a pilot, randomized, 2*2 factorial design trial. Of 122 participants consented, 111 were randomized to receive caloric restriction and aerobic exercise, caloric restriction alone, aerobic exercise alone, or usual care. Of those randomized, 42% were women, 25% were diabetic, and 91% were hypertensive; 104 started intervention, and 92 completed the 4-month study. Primary outcomes were a change from baseline in absolute fat mass, body weight, plasma F2-isoprostane concentrations, and peak oxygen uptake (VO2 peak). Compared with usual care, the combined intervention led to statistically significant decreases in body weight and body fat percentage. Caloric restriction alone also led to significant decreases in these measures, but aerobic exercise alone did not. The combined intervention and each independent intervention also led to significant decreases in F2-isoprostane and IL-6 concentrations. No intervention produced significant changes in VO2 peak, kidney function, or urine albumin-to-creatinine ratio. In conclusion, 4-month dietary calorie restriction and aerobic exercise had significant, albeit clinically modest, benefits on body weight, fat mass, and markers of oxidative stress and inflammatory response in patients with moderate to severe CKD. These results suggest healthy lifestyle interventions as a nonpharmacologic strategy to improve markers of metabolic health in these patients. PMID- 29038286 TI - Allogeneic Mesenchymal Stem Cells for Treatment of AKI after Cardiac Surgery. AB - AKI after cardiac surgery remains strongly associated with mortality and lacks effective treatment or prevention. Preclinical studies suggest that cell-based interventions may influence functional recovery. We conducted a phase 2, randomized, double-blind, placebo-controlled trial in 27 centers across North America to determine the safety and efficacy of allogeneic human mesenchymal stem cells (MSCs) in reducing the time to recovery from AKI after cardiac surgery. We randomized 156 adult subjects undergoing cardiac surgery with evidence of early AKI to receive intra-aortic MSCs (AC607; n=67) or placebo (n=68). The primary outcome was the time to recovery of kidney function defined as return of postintervention creatinine level to baseline. The median time to recovery of kidney function was 15 days with AC607 and 12 days with placebo (25th, 75th percentile range, 10-29 versus 6-21, respectively; hazard ratio, 0.81; 95% confidence interval, 0.53 to 1.24; P=0.32). We did not detect a significant difference between groups in 30-day all-cause mortality (16.7% with AC607; 11.8% with placebo) or dialysis (10.6% with AC607; 7.4% with placebo). At follow-up, 12 patients who received AC607 and six patients who received placebo had died. Rates of other adverse events did not differ between groups. In these patients with AKI after cardiac surgery, administration of allogeneic MSCs did not decrease the time to recovery of kidney function. Our results contrast with those in preclinical studies and provide important information regarding the potential effects of MSCs in this setting. PMID- 29038287 TI - Genetic Complexity of Autosomal Dominant Polycystic Kidney and Liver Diseases. AB - Data indicate significant phenotypic and genotypic overlap, plus a common pathogenesis, between two groups of inherited disorders, autosomal dominant polycystic kidney diseases (ADPKD), a significant cause of ESRD, and autosomal dominant polycystic liver diseases (ADPLD), which result in significant PLD with minimal PKD. Eight genes have been associated with ADPKD (PKD1 and PKD2), ADPLD (PRKCSH, SEC63, LRP5, ALG8, and SEC61B), or both (GANAB). Although genetics is only infrequently used for diagnosing these diseases and prognosing the associated outcomes, its value is beginning to be appreciated, and the genomics revolution promises more reliable and less expensive molecular diagnostic tools for these diseases. We therefore propose categorization of patients with a phenotypic and genotypic descriptor that will clarify etiology, provide prognostic information, and better describe atypical cases. In genetically defined cases, the designation would include the disease and gene names, with allelic (truncating/nontruncating) information included for PKD1 Recent data have shown that biallelic disease including at least one weak ADPKD allele is a significant cause of symptomatic, very early onset ADPKD. Including a genic (and allelic) descriptor with the disease name will provide outcome clues, guide treatment, and aid prevalence estimates. PMID- 29038289 TI - Trump signs executive orders in bid to undermine Obamacare. PMID- 29038288 TI - Ets in the Kidney-Unraveling the Molecular Mechanism Underlying Renal Damage in Salt-Sensitive Hypertension. PMID- 29038290 TI - New cerebral findings in infants with congenital Zika syndrome. PMID- 29038291 TI - Cystine uptake through the cystine/glutamate antiporter xCT triggers glioblastoma cell death under glucose deprivation. AB - Oncogenic signaling in cancer cells alters glucose uptake and utilization to supply sufficient energy and biosynthetic intermediates for survival and sustained proliferation. Oncogenic signaling also prevents oxidative stress and cell death caused by increased production of reactive oxygen species. However, elevated glucose metabolism in cancer cells, especially in glioblastoma, results in the cells becoming sensitive to glucose deprivation (i.e. in high glucose dependence), which rapidly induces cell death. However, the precise mechanism of this type of cell death remains unknown. Here, we report that glucose deprivation alone does not trigger glioblastoma cell death. We found that, for cell death to occur in glucose-deprived glioblastoma cells, cystine and glutamine also need to be present in culture media. We observed that cystine uptake through the cystine/glutamate antiporter xCT under glucose deprivation rapidly induces NADPH depletion, reactive oxygen species accumulation, and cell death. We conclude that although cystine uptake is crucial for production of antioxidant glutathione in cancer cells its transport through xCT also induces oxidative stress and cell death in glucose-deprived glioblastoma cells. Combining inhibitors targeting cancer-specific glucose metabolism with cystine and glutamine treatment may offer a therapeutic approach for glioblastoma tumors exhibiting high xCT expression. PMID- 29038292 TI - Proteolysis suppresses spontaneous prion generation in yeast. AB - Prions are infectious proteins that cause fatal neurodegenerative disorders including Creutzfeldt-Jakob and bovine spongiform encephalopathy (mad cow) diseases. The yeast [PSI+] prion is formed by the translation-termination factor Sup35, is the best-studied prion, and provides a useful model system for studying such diseases. However, despite recent progress in the understanding of prion diseases, the cellular defense mechanism against prions has not been elucidated. Here, we report that proteolytic cleavage of Sup35 suppresses spontaneous de novo generation of the [PSI+] prion. We found that during yeast growth in glucose media, a maximum of 40% of Sup35 is cleaved at its N-terminal prion domain. This cleavage requires the vacuolar proteases PrA-PrB. Cleavage occurs in a manner dependent on translation but independently of autophagy between the glutamine/asparagine-rich (Q/N-rich) stretch critical for prion formation and the oligopeptide-repeat region required for prion maintenance, resulting in the removal of the Q/N-rich stretch from the Sup35 N terminus. The complete inhibition of Sup35 cleavage, by knocking out either PrA (pep4Delta) or PrB (prb1Delta), increased the rate of de novo formation of [PSI+] prion up to ~5 fold, whereas the activation of Sup35 cleavage, by overproducing PrB, inhibited [PSI+] formation. On the other hand, activation of the PrB pathway neither cleaved the amyloid conformers of Sup35 in [PSI+] strains nor eliminated preexisting [PSI+]. These findings point to a mechanism antagonizing prion generation in yeast. Our results underscore the usefulness of the yeast [PSI+] prion as a model system to investigate defense mechanisms against prion diseases and other amyloidoses. PMID- 29038293 TI - Loss of hepatic AMP-activated protein kinase impedes the rate of glycogenolysis but not gluconeogenic fluxes in exercising mice. AB - Pathologies including diabetes and conditions such as exercise place an unusual demand on liver energy metabolism, and this demand induces a state of energy discharge. Hepatic AMP-activated protein kinase (AMPK) has been proposed to inhibit anabolic processes such as gluconeogenesis in response to cellular energy stress. However, both AMPK activation and glucose release from the liver are increased during exercise. Here, we sought to test the role of hepatic AMPK in the regulation of in vivo glucose-producing and citric acid cycle-related fluxes during an acute bout of muscular work. We used 2H/13C metabolic flux analysis to quantify intermediary metabolism fluxes in both sedentary and treadmill-running mice. Additionally, liver-specific AMPK alpha1 and alpha2 subunit KO and WT mice were utilized. Exercise caused an increase in endogenous glucose production, glycogenolysis, and gluconeogenesis from phosphoenolpyruvate. Citric acid cycle fluxes, pyruvate cycling, anaplerosis, and cataplerosis were also elevated during this exercise. Sedentary nutrient fluxes in the postabsorptive state were comparable for the WT and KO mice. However, the increment in the endogenous rate of glucose appearance during exercise was blunted in the KO mice because of a diminished glycogenolytic flux. This lower rate of glycogenolysis was associated with lower hepatic glycogen content before the onset of exercise and prompted a reduction in arterial glucose during exercise. These results indicate that liver AMPKalpha1alpha2 is required for maintaining glucose homeostasis during an acute bout of exercise. PMID- 29038294 TI - The NSAID allosteric site of human cytosolic sulfotransferases. AB - Non-steroidal anti-inflammatory drugs (NSAIDs) are among the most commonly prescribed drugs worldwide-more than 111 million prescriptions were written in the United States in 2014. NSAIDs allosterically inhibit cytosolic sulfotransferases (SULTs) with high specificity and therapeutically relevant affinities. This study focuses on the interactions of SULT1A1 and mefenamic acid (MEF)-a potent, highly specific NSAID inhibitor of 1A1. Here, the first structure of an NSAID allosteric site-the MEF-binding site of SULT1A1-is determined using spin-label triangulation NMR. The structure is confirmed by site-directed mutagenesis and provides a molecular framework for understanding NSAID binding and isoform specificity. The mechanism of NSAID inhibition is explored using molecular dynamics and equilibrium and pre-steady-state ligand-binding studies. MEF inhibits SULT1A1 turnover through an indirect (helix-mediated) stabilization of the closed form of the active-site cap of the enzyme, which traps the nucleotide and slows its release. Using the NSAID-binding site structure of SULT1A1 as a comparative model, it appears that 11 of the 13 human SULT isoforms harbor an NSAID-binding site. We hypothesize that these sites evolved to enable SULT isoforms to respond to metabolites that lie within their metabolic domains. Finally, the NSAID-binding site structure offers a template for developing isozyme-specific allosteric inhibitors that can be used to regulate specific areas of sulfuryl-transfer metabolism. PMID- 29038295 TI - Characterization of aromatic residue-controlled protein retention in the endoplasmic reticulum of Saccharomyces cerevisiae. AB - An endoplasmic reticulum (ER) retention sequence (ERS) is a characteristic short sequence that mediates protein retention in the ER of eukaryotic cells. However, little is known about the detailed molecular mechanism involved in ERS-mediated protein ER retention. Using a new surface display-based fluorescence technique that effectively quantifies ERS-promoted protein ER retention within Saccharomyces cerevisiae cells, we performed comprehensive ERS analyses. We found that the length, type of amino acid residue, and additional residues at positions -5 and -6 of the C-terminal HDEL motif all determined the retention of ERS in the yeast ER. Moreover, the biochemical results guided by structure simulation revealed that aromatic residues (Phe-54, Trp-56, and other aromatic residues facing the ER lumen) in both the ERS (at positions -6 and -4) and its receptor, Erd2, jointly determined their interaction with each other. Our studies also revealed that this aromatic residue interaction might lead to the discriminative recognition of HDEL or KDEL as ERS in yeast or human cells, respectively. Our findings expand the understanding of ERS-mediated residence of proteins in the ER and may guide future research into protein folding, modification, and translocation affected by ER retention. PMID- 29038296 TI - A Blueprint to Advance Colorectal Cancer Immunotherapies. AB - Immunotherapy is rapidly becoming a standard of care for many cancers. However, colorectal cancer had been generally resistant to immunotherapy, despite features in common with sensitive tumors. Observations of substantial clinical activity for checkpoint blockade in colorectal cancers with defective mismatch repair (microsatellite instability-high tumors) have reignited interest in the search for immunotherapies that could be extended to the larger microsatellite stable (MSS) population. The Cancer Research Institute and Fight Colorectal Cancer convened a group of scientists, clinicians, advocates, and industry experts in colorectal cancer and immunotherapy to compile ongoing research efforts, identify gaps in translational and clinical research, and provide a blueprint to advance immunotherapy. We identified lack of a T-cell inflamed phenotype (due to inadequate T-cell infiltration, inadequate T-cell activation, or T-cell suppression) as a broad potential explanation for failure of checkpoint blockade in MSS. The specific cellular and molecular underpinnings for these various mechanisms are unclear. Whether biomarkers with prognostic value, such as the immunoscores and IFN signatures, would also predict benefit for immunotherapies in MSS colon cancer is unknown, but if so, these and other biomarkers for measuring the potential for an immune response in patients with colorectal cancer will need to be incorporated into clinical guidelines. We have proposed a framework for research to identify immunologic factors that may be modulated to improve immunotherapy for colorectal cancer patients, with the goal that the biomarkers and treatment strategies identified will become part of the routine management of colorectal cancer. Cancer Immunol Res; 5(11); 942-9. (c)2017 AACR. PMID- 29038297 TI - Tumor PDCD1LG2 (PD-L2) Expression and the Lymphocytic Reaction to Colorectal Cancer. AB - Expression of the immune checkpoint ligand CD274 (programmed cell death 1 ligand 1, PD-L1, from gene CD274) contributes to suppression of antitumor T cell mediated immune response in various tumor types. However, the role of PDCD1LG2 (PD-L2, CD273, from gene PDCD1LG2) in the tumor microenvironment remains unclear. We hypothesized that tumor PDCD1LG2 expression might be inversely associated with lymphocytic reactions to colorectal cancer. We examined tumor PDCD1LG2 expression by IHC in 823 colon and rectal carcinoma cases within two U.S.-nationwide cohort studies and categorized tumors into quartiles according to the percentage of PDCD1LG2-expressing carcinoma cells. We conducted multivariable ordinal logistic regression analysis to assess the associations of tumor PDCD1LG2 expression with Crohn-like lymphoid reaction, peritumoral lymphocytic reaction, intratumoral periglandular reaction, or tumor-infiltrating lymphocytes, controlling for potential confounders, including microsatellite instability, CpG island methylator phenotype, long-interspersed nucleotide element-1 methylation, and KRAS, BRAF, and PIK3CA mutations. Tumor PDCD1LG2 expression was inversely associated with Crohn-like lymphoid reaction (Ptrend = 0.0003). For a unit increase in the three-tiered ordinal categories of Crohn-like lymphoid reaction, a multivariable OR in the highest (vs. lowest) quartile of the percentage of PDCD1LG2-expressing tumor cells was 0.38 (95% confidence interval, 0.22-0.67). Tumor PDCD1LG2 expression was not associated with peritumoral lymphocytic reaction, intratumoral periglandular reaction, tumor-infiltrating lymphocytes, or patient survival (Ptrend > 0.13). Thus, tumor PDCD1LG2 expression is inversely associated with Crohn-like lymphoid reaction to colorectal cancer, suggesting a possible role of PDCD1LG2-expressing tumor cells in inhibiting the development of tertiary lymphoid tissues during colorectal carcinogenesis. Cancer Immunol Res; 5(11); 1046-55. (c)2017 AACR. PMID- 29038298 TI - Subversion of NK-cell and TNFalpha Immune Surveillance Drives Tumor Recurrence. AB - Understanding how incompletely cleared primary tumors transition from minimal residual disease (MRD) into treatment-resistant, immune-invisible recurrences has major clinical significance. We show here that this transition is mediated through the subversion of two key elements of innate immunosurveillance. In the first, the role of TNFalpha changes from an antitumor effector against primary tumors into a growth promoter for MRD. Second, whereas primary tumors induced a natural killer (NK)-mediated cytokine response characterized by low IL6 and elevated IFNgamma, PD-L1hi MRD cells promoted the secretion of IL6 but minimal IFNgamma, inhibiting both NK-cell and T-cell surveillance. Tumor recurrence was promoted by trauma- or infection-like stimuli inducing VEGF and TNFalpha, which stimulated the growth of MRD tumors. Finally, therapies that blocked PD-1, TNFalpha, or NK cells delayed or prevented recurrence. These data show how innate immunosurveillance mechanisms, which control infection and growth of primary tumors, are exploited by recurrent, competent tumors and identify therapeutic targets in patients with MRD known to be at high risk of relapse. Cancer Immunol Res; 5(11); 1029-45. (c)2017 AACR. PMID- 29038299 TI - An Assessment in SpondyloArthritis International Society (ASAS)-endorsed definition of clinically important worsening in axial spondyloarthritis based on ASDAS. AB - INTRODUCTION: In a previous phase, 12 draft definitions for clinically important worsening in axial spondyloarthritis (axSpA) were selected, of which 3 were based on absolute changes in Ankylosing Spondylitis Disease Activity Score (ASDAS)-CRP (ASDAS). The objective here was to select the best cut-off for ASDAS for clinically important worsening in axSpA for use in clinical trials and observational studies. METHODS: An international longitudinal prospective study evaluating stable patients with axSpA was conducted. Data necessary to calculate ASDAS were collected at two consecutive visits (spaced 7 days to 6 months). Sensitivity and specificity of the three cut-offs for change in ASDAS were tested against the patient's subjective assessment of worsening as the external standard (ie, the patient reporting that he had worsened and felt a need for treatment intensification). Final selection was made by a consensus and voting procedure among Assessment of SpondyloArthritis International Society (ASAS) members. RESULTS: In total, 1169 patients with axSpA were analysed: 64.8% were male and had a mean age of 41.7 (SD 12.4) years. At the second visit, 127 (10.9%) patients judged their situation as worsened.Sensitivity and specificity for an increase of at least 0.6, 0.9 and 1.1 ASDAS points to detect patient-reported worsening were 0.55 (Se) and 0.91 (Sp), 0.38 (Se) and 0.96 (Sp), and 0.33 (Se) and 0.98 (Sp), respectively. The ASAS consensus was to define clinically important worsening as an increase in ASDAS of at least 0.9 points. CONCLUSION: This data-driven ASAS consensus process resulted in an ASDAS-based cut-off value defining clinically important worsening in axSpA for use in trials. PMID- 29038301 TI - The small GTPase RSG1 controls a final step in primary cilia initiation. AB - Primary cilia, which are essential for normal development and tissue homeostasis, are extensions of the mother centriole, but the mechanisms that remodel the centriole to promote cilia initiation are poorly understood. Here we show that mouse embryos that lack the small guanosine triphosphatase RSG1 die at embryonic day 12.5, with developmental abnormalities characteristic of decreased cilia dependent Hedgehog signaling. Rsg1 mutant embryos have fewer primary cilia than wild-type embryos, but the cilia that form are of normal length and traffic Hedgehog pathway proteins within the cilium correctly. Rsg1 mother centrioles recruit proteins required for cilia initiation and dock onto ciliary vesicles, but axonemal microtubules fail to elongate normally. RSG1 localizes to the mother centriole in a process that depends on tau tubulin kinase 2 (TTBK2), the CPLANE complex protein Inturned (INTU), and its own GTPase activity. The data suggest a specific role for RSG1 in the final maturation of the mother centriole and ciliary vesicle that allows extension of the ciliary axoneme. PMID- 29038302 TI - Cullin-3 and its adaptor protein ANKFY1 determine the surface level of integrin beta1 in endothelial cells. AB - Angiogenesis, the formation of new blood vessels from the pre-existing vasculature, is related to numerous pathophysiological events. We previously reported that a RING ubiquitin ligase complex scaffold protein, cullin-3 (CUL3), and one of its adaptor proteins, BAZF, regulated angiogenesis in the mouse retina by suppressing Notch signaling. However, the degree of inhibition of angiogenesis was made greater by CUL3 depletion than by BAZF depletion, suggesting other roles of CUL3 in angiogenesis besides the regulation of Notch signaling. In the present study, we found that CUL3 was critical for the cell surface level of integrin beta1, an essential cell adhesion molecule for angiogenesis in HUVECs. By siRNA screening of 175 BTBPs, a family of adaptor proteins for CUL3, we found that ANKFY1/Rabankyrin-5, an early endosomal BTBP, was also critical for localization of surface integrin beta1 and angiogenesis. CUL3 interacted with ANKFY1 and was required for the early endosomal localization of ANKFY1. These data suggest that CUL3/ANKFY1 regulates endosomal membrane traffic of integrin beta1. Our results highlight the multiple roles of CUL3 in angiogenesis, which are mediated through distinct CUL3-adaptor proteins. PMID- 29038303 TI - F-actin reorganization by V-ATPase inhibition in prostate cancer. AB - The vacuolar ATPase (V-ATPase) proton pump sustains cellular pH homeostasis, and its inhibition triggers numerous stress responses. However, the cellular mechanisms involved remain largely elusive in cancer cells. We studied V-ATPase in the prostate cancer (PCa) cell line PC-3, which has characteristics of highly metastatic PCa. V-ATPase inhibitors impaired endo-lysosomal pH, vesicle trafficking, migration, and invasion. V-ATPase accrual in the Golgi and recycling endosomes suggests that traffic of internalized membrane vesicles back to the plasma membrane was particularly impaired. Directed movement provoked co localization of V-ATPase containing vesicles with F-actin near the leading edge of migrating cells. V-ATPase inhibition prompted prominent F-actin cytoskeleton reorganization. Filopodial projections were reduced, which related to reduced migration velocity. F-actin formed novel cytoplasmic rings. F-actin rings increased with extended exposure to sublethal concentrations of V-ATPase inhibitors, from 24 to 48 h, as the amount of alkalinized endo-lysosomal vesicles increased. Studies with chloroquine indicated that F-actin rings formation was pH dependent. We hypothesize that these novel F-actin rings assemble to overcome widespread traffic defects caused by V-ATPase inhibition, similar to F-actin rings on the surface of exocytic organelles. PMID- 29038305 TI - Variations in basement membrane mechanics are linked to epithelial morphogenesis. AB - The regulation of morphogenesis by the basement membrane (BM) may rely on changes in its mechanical properties. To test this, we developed an atomic force microscopy-based method to measure BM mechanical stiffness during two key processes in Drosophila ovarian follicle development. First, follicle elongation depends on epithelial cells that collectively migrate, secreting BM fibrils perpendicularly to the anteroposterior axis. Our data show that BM stiffness increases during this migration and that fibril incorporation enhances BM stiffness. In addition, stiffness heterogeneity, due to oriented fibrils, is important for egg elongation. Second, epithelial cells change their shape from cuboidal to either squamous or columnar. We prove that BM softens around the squamous cells and that this softening depends on the TGFbeta pathway. We also demonstrate that interactions between BM constituents are necessary for cell flattening. Altogether, these results show that BM mechanical properties are modified during development and that, in turn, such mechanical modifications influence both cell and tissue shapes. PMID- 29038306 TI - PFKFB4 control of AKT signaling is essential for premigratory and migratory neural crest formation. AB - Neural crest (NC) specification comprises an early phase, initiating immature NC progenitors formation at neural plate stage, and a later phase at neural fold stage, resulting in a functional premigratory NC that is able to delaminate and migrate. We found that the NC gene regulatory network triggers upregulation of pfkfb4 (6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 4) during this late specification phase. As shown in previous studies, PFKFB4 controls AKT signaling in gastrulas and glycolysis rate in adult cells. Here, we focus on PFKFB4 function in NC during and after neurulation, using time-controlled or hypomorph depletions in vivo We find that PFKFB4 is essential both for specification of functional premigratory NC and for its migration. PFKFB4-depleted embryos fail to activate n-cadherin and late NC specifiers, and exhibit severe migration defects resulting in craniofacial defects. AKT signaling mediates PFKFB4 function in NC late specification, whereas both AKT signaling and glycolysis regulate migration. These findings highlight novel and essential roles of PFKFB4 activity in later stages of NC development that are wired into the NC gene regulatory network. PMID- 29038307 TI - Branching morphogenesis in the developing kidney is governed by rules that pattern the ureteric tree. AB - Metanephric kidney development is orchestrated by the iterative branching morphogenesis of the ureteric bud. We describe an underlying patterning associated with the ramification of this structure and show that this pattern is conserved between developing kidneys, in different parts of the organ and across developmental time. This regularity is associated with a highly reproducible branching asymmetry that is consistent with locally operative growth mechanisms. We then develop a class of tip state models to represent elaboration of the ureteric tree and describe rules for 'half-delay' branching morphogenesis that describe almost perfectly the patterning of this structure. Spatial analysis suggests that the observed asymmetry may arise from mutual suppression of bifurcation, but not extension, between the growing ureteric tips, and demonstrates that disruption of patterning occurs in mouse mutants in which the distribution of tips on the surface of the kidney is altered. These findings demonstrate that kidney development occurs by way of a highly conserved reiterative pattern of asymmetric bifurcation that is governed by intrinsic and locally operative mechanisms. PMID- 29038308 TI - Cell dynamics underlying oriented growth of the Drosophila wing imaginal disc. AB - Quantitative analysis of the dynamic cellular mechanisms shaping the Drosophila wing during its larval growth phase has been limited, impeding our ability to understand how morphogen patterns regulate tissue shape. Such analysis requires explants to be imaged under conditions that maintain both growth and patterning, as well as methods to quantify how much cellular behaviors change tissue shape. Here, we demonstrate a key requirement for the steroid hormone 20-hydroxyecdysone (20E) in the maintenance of numerous patterning systems in vivo and in explant culture. We find that low concentrations of 20E support prolonged proliferation in explanted wing discs in the absence of insulin, incidentally providing novel insight into the hormonal regulation of imaginal growth. We use 20E-containing media to observe growth directly and to apply recently developed methods for quantitatively decomposing tissue shape changes into cellular contributions. We discover that whereas cell divisions drive tissue expansion along one axis, their contribution to expansion along the orthogonal axis is cancelled by cell rearrangements and cell shape changes. This finding raises the possibility that anisotropic mechanical constraints contribute to growth orientation in the wing disc. PMID- 29038310 TI - Free-ranging dogs prefer petting over food in repeated interactions with unfamiliar humans. AB - Dogs (Canis lupus familiaris) are the first species to have been domesticated and, unlike other domesticated species, they have developed a special bond with their owners. The ability to respond to human gestures and language, and the hypersocial behaviours of dogs are considered key factors that have led them to become man's best friend. Free-ranging dogs provide an excellent model system for understanding the dog-human relationship in various social contexts. In India, free-ranging dogs occur in all possible human habitations. They scavenge among garbage, beg for food from humans, give birth in dens close to human habitations, and establish social bonds with people. However, there is ample dog-human conflict on the streets, leading to morbidity and mortality of dogs. Hence, the ability to assess an unfamiliar human before establishing physical contact could be adaptive for dogs, especially in the urban environment. We tested a total of 103 adult dogs to investigate their response to immediate social and long-term food and social rewards. The dogs were provided a choice of obtaining food either from an experimenter's hand or the ground. The dogs avoided making physical contact with the unfamiliar human. While immediate social reward was not effective in changing this response, the long-term test showed a strong effect of social contact. Our results revealed that these dogs tend to build trust based on affection, not food. This study provides significant insights into the dynamics of dog-human interactions on the streets and subsequent changes in behaviour of dogs through the process of learning. PMID- 29038309 TI - Deletion of Protein Kinase D1 in Pancreatic beta-Cells Impairs Insulin Secretion in High-Fat Diet-Fed Mice. AB - Betabeta-Cell adaptation to insulin resistance is necessary to maintain glucose homeostasis in obesity. Failure of this mechanism is a hallmark of type 2 diabetes (T2D). Hence, factors controlling functional beta-cell compensation are potentially important targets for the treatment of T2D. Protein kinase D1 (PKD1) integrates diverse signals in the beta-cell and plays a critical role in the control of insulin secretion. However, the role of beta-cell PKD1 in glucose homeostasis in vivo is essentially unknown. Using beta-cell-specific, inducible PKD1 knockout mice (betaPKD1KO), we examined the role of beta-cell PKD1 under basal conditions and during high-fat feeding. betaPKD1KO mice under a chow diet presented no significant difference in glucose tolerance or insulin secretion compared with mice expressing the Cre transgene alone; however, when compared with wild-type mice, both groups developed glucose intolerance. Under a high-fat diet, deletion of PKD1 in beta-cells worsened hyperglycemia, hyperinsulinemia, and glucose intolerance. This was accompanied by impaired glucose-induced insulin secretion both in vivo in hyperglycemic clamps and ex vivo in isolated islets from high-fat diet-fed betaPKD1KO mice without changes in islet mass. This study demonstrates an essential role for PKD1 in the beta-cell adaptive secretory response to high-fat feeding in mice. PMID- 29038311 TI - Integration of swimming kinematics and ram suspension feeding in a model American paddlefish, Polyodon spathula. AB - Ram suspension-feeding fishes swim with an open mouth to force water through the oral cavity and extract prey items that are too small to be pursued individually. Recent research has indicated that, rather than using a dead-end mechanical sieve, American paddlefish (Polyodon spathula) employ vortical cross-step filtration. In this filtration mechanism, vortical flow that is generated posterior to the branchial arches organizes crossflow filtration processes into a spatial structure across the gill rakers. Despite the known impact of locomotor kinematics on fluid flow around the bodies of swimming fish, the effects of locomotor kinematics on filtration mechanisms in ram suspension feeders are unknown. Potential temporal organization of filtration mechanisms in ram suspension-feeding fish has not been studied previously. We investigated the effects of locomotor kinematics associated with undulatory swimming on intra-oral flow patterns and food particle transport. A mechanized model of the oral cavity was used to simulate the swimming kinematics of suspension-feeding paddlefish. We recorded fluctuations of flow speed and pressure within the model, which occurred at a frequency that corresponded with the frequency of the model's strides. Using the mechanized model in a flow tank seeded with Artemia cysts, we also showed that swimming kinematics aided the transport of this simulated food to the posterior margins of the gill slots, although the time scale of this transport is expected to vary with prey parameters such as size and concentration. Dye stream experiments revealed that, although stable vortical flow formed because of flow separation downstream of backward-facing steps in control trials, vortical flow structures in mechanized trials repeatedly formed and shed. These findings suggest strong integration between locomotor and feeding systems in ram suspension-feeding fishes. PMID- 29038313 TI - Defamation lawsuits: academic sword or shield? PMID- 29038314 TI - Physical Activity Reduces Risk of Premature Mortality in Patients With Type 1 Diabetes With and Without Kidney Disease. AB - OBJECTIVE: The aims of the study were to assess how baseline leisure-time physical activity (LTPA) and its exercise components intensity, duration, and frequency are associated with all-cause and cardiovascular mortality in patients with type 1 diabetes 1) overall, 2) stratified by presence or absence of chronic kidney disease (CKD), and 3) stratified by sex. RESEARCH DESIGN AND METHODS: The study design was prospective and observational and included 2,639 patients with type 1 diabetes from the ongoing nationwide multicenter Finnish Diabetic Nephropathy (FinnDiane) Study. Mean follow-up time was 11.4 +/- 3.5 years. LTPA was assessed by using a validated self-report questionnaire. Three hundred ten patients (11.7%) had CKD defined as an estimated glomerular filtration rate of <=60 mL/min/1.73 m2. RESULTS: During follow-up, 270 deaths occurred. LTPA and all its components were associated with all-cause mortality, even after adjustment for the potential confounders sex, diabetic nephropathy, duration of diabetes, age at onset of diabetes, systolic blood pressure, triglycerides, BMI, and HbA1c. Only exercise intensity was associated with cardiovascular mortality after adjustment for the confounders. Of the patients with CKD, 127 died during follow up. The total amount of LTPA and exercise frequency were independently associated with lower risk of all-cause mortality when adjusted for covariates. CONCLUSIONS: Exercise is associated with a lower risk of premature all-cause and cardiovascular mortality in patients with type 1 diabetes. This study also demonstrates that physical activity is associated with a lower risk of mortality in patients with type 1 diabetes and CKD. PMID- 29038312 TI - Dynamic stroma reorganization drives blood vessel dysmorphia during glioma growth. AB - Glioma growth and progression are characterized by abundant development of blood vessels that are highly aberrant and poorly functional, with detrimental consequences for drug delivery efficacy. The mechanisms driving this vessel dysmorphia during tumor progression are poorly understood. Using longitudinal intravital imaging in a mouse glioma model, we identify that dynamic sprouting and functional morphogenesis of a highly branched vessel network characterize the initial tumor growth, dramatically changing to vessel expansion, leakage, and loss of branching complexity in the later stages. This vascular phenotype transition was accompanied by recruitment of predominantly pro-inflammatory M1 like macrophages in the early stages, followed by in situ repolarization to M2 like macrophages, which produced VEGF-A and relocate to perivascular areas. A similar enrichment and perivascular accumulation of M2 versus M1 macrophages correlated with vessel dilation and malignancy in human glioma samples of different WHO malignancy grade. Targeting macrophages using anti-CSF1 treatment restored normal blood vessel patterning and function. Combination treatment with chemotherapy showed survival benefit, suggesting that targeting macrophages as the key driver of blood vessel dysmorphia in glioma progression presents opportunities to improve efficacy of chemotherapeutic agents. We propose that vessel dysfunction is not simply a general feature of tumor vessel formation, but rather an emergent property resulting from a dynamic and functional reorganization of the tumor stroma and its angiogenic influences. PMID- 29038316 TI - Using perinatal morbidity scoring tools as a primary study outcome. AB - Perinatal morbidity scores are tools that score or weight different adverse events according to their relative severity. Perinatal morbidity scores are appealing for maternal-infant health researchers because they provide a way to capture a broad range of adverse events to mother and newborn while recognising that some events are considered more serious than others. However, they have proved difficult to implement as a primary outcome in applied research studies because of challenges in testing if the scores are significantly different between two or more study groups. We outline these challenges and describe a solution, based on Poisson regression, that allows differences in perinatal morbidity scores to be formally evaluated. The approach is illustrated using an existing maternal-neonatal scoring tool, the Adverse Outcome Index, to evaluate the safety of labour and delivery before and after the closure of obstetrical services in small rural communities. Applying the proposed Poisson regression to the case study showed a protective risk ratio for adverse outcome following closures as compared with the original analysis, where no difference was found. This approach opens the door for considerably broader use of perinatal morbidity scoring tools as a primary outcome in applied population and clinical maternal infant health research studies. PMID- 29038315 TI - Adiposity, Dysmetabolic Traits, and Earlier Onset of Female Puberty in Adolescent Offspring of Women With Gestational Diabetes Mellitus: A Clinical Study Within the Danish National Birth Cohort. AB - OBJECTIVE: Offspring of pregnancies affected by gestational diabetes mellitus (GDM) are at increased risk of the development of type 2 diabetes. However, the extent to which these dysmetabolic traits may be due to offspring and/or maternal adiposity is unknown. We examined body composition and associated cardiometabolic traits in 561 9- to 16-year-old offspring of mothers with GDM and 597 control offspring. RESEARCH DESIGN AND METHODS: We measured anthropometric characteristics; puberty status; blood pressure; and fasting glucose, insulin, C peptide, and lipid levels; and conducted a DEXA scan in a subset of the cohort. Differences in the outcomes between offspring of mothers with GDM and control subjects were examined using linear and logistic regression models. RESULTS: After adjustment for age and sex, offspring of mothers with GDM displayed higher weight, BMI, waist-to-hip ratio (WHR), systolic blood pressure, and resting heart rate and lower height. Offspring of mothers with GDM had higher total and abdominal fat percentages and lower muscle mass percentages, but these differences disappeared after correction for offspring BMI. The offspring of mothers with GDM displayed higher fasting plasma glucose, insulin, C-peptide, HOMA-insulin resistance (IR), and plasma triglyceride levels, whereas fasting plasma HDL cholesterol levels were decreased. Female offspring of mothers with GDM had an earlier onset of puberty than control offspring. Offspring of mothers with GDM had significantly higher BMI, WHR, fasting glucose, and HOMA-IR levels after adjustment for maternal prepregnancy BMI, and glucose and HOMA-IR remained elevated in the offspring of mothers with GDM after correction for both maternal and offspring BMIs. CONCLUSIONS: In summary, adolescent offspring of women with GDM show increased adiposity, an adverse cardiometabolic profile, and earlier onset of puberty among girls. Increased fasting glucose and HOMA-IR levels among the offspring of mothers with GDM may be explained by the programming effects of hyperglycemia in pregnancy. PMID- 29038317 TI - Change in non-alcoholic beverage sales following a 10-pence levy on sugar sweetened beverages within a national chain of restaurants in the UK: interrupted time series analysis of a natural experiment. AB - BACKGROUND: This study evaluates changes in sales of non-alcoholic beverages in Jamie's Italian, a national chain of commercial restaurants in the UK, following the introduction of a L0.10 per-beverage levy on sugar-sweetened beverages (SSBs) and supporting activity including beverage menu redesign, new products and establishment of a children's health fund from levy proceeds. METHODS: We used an interrupted time series design to quantify changes in sales of non-alcoholic beverages 12 weeks and 6 months after implementation of the levy, using itemised electronic point of sale data. Main outcomes were number of SSBs and other non alcoholic beverages sold per customer. Linear regression and multilevel random effects models, adjusting for seasonality and clustering, were used to investigate changes in SSB sales across all restaurants (n=37) and by tertiles of baseline restaurant SSB sales per customer. RESULTS: Compared with the prelevy period, the number of SSBs sold per customer declined by 11.0% (-17.3% to -4.3%) at 12 weeks and 9.3% (-15.2% to -3.2%) at 6 months. For non-levied beverages, sales per customer of children's fruit juice declined by 34.7% (-55.3% to -4.3%) at 12 weeks and 9.9% (-16.8% to -2.4%) at 6 months. At 6 months, sales per customer of fruit juice increased by 21.8% (14.0% to 30.2%) but sales of diet cola (-7.3%; -11.7% to -2.8%) and bottled waters (-6.5%; -11.0% to -1.7%) declined. Changes in sales were only observed in restaurants in the medium and high tertiles of baseline SSB sales per customer. CONCLUSIONS: Introduction of a L0.10 levy on SSBs alongside complementary activities is associated with declines in SSB sales per customer in the short and medium term, particularly in restaurants with higher baseline sales of SSBs. PMID- 29038318 TI - Healthy interpretation. PMID- 29038319 TI - We need a "made in Canada" orphan drug framework. PMID- 29038321 TI - Testosterone use causing erythrocytosis. PMID- 29038322 TI - Thumb and vallecula signs in acute infectious epiglottitis. PMID- 29038320 TI - Persistence of immunity after vaccination with a capsular group B meningococcal vaccine in 3 different toddler schedules. AB - BACKGROUND: One schedule for the capsular group B meningococcal vaccine 4CMenB is 2 doses that are administered 2 months apart for children aged 12-23 months, with a booster dose 12-24 months later. Our objective was to provide data on persistence of human serum bactericidal antibody (hSBA) titres in children up to 4 years of age after initial doses at 12-24 months, and immunogenicity of a booster dose at 48 months of age compared with vaccine-naive children. METHODS: Children previously immunized, as part of a randomized controlled trial, with 2 doses of 4CMenB vaccine at 12-24 months of age received a booster at 4 years of age. Vaccine-naive age-matched toddlers received 2 doses of 4CMenB. Human serum bactericidal antibody titres against reference strains H44/76, 5/99, NZ98/254 and M10713 were evaluated before and after innoculation with 4CMenB vaccine in 4-year old children. RESULTS: Of 332 children in the study, 123 had previously received 4CMenB and 209 were vaccine-naive controls. Before the booster, the proportions of participants (previously vaccinated groups compared with controls) with hSBA titres of 1:5 or more were as follows: 9%-11% v. 1% (H44/76), 84%-100% v. 4% (5/99), 0%-18% v. 0% (NZ98/254) and 59%-60% v. 60% (M10713). After 1 dose of 4CMenB in previously immunized children, the proportions of participants achieving hSBA titres of 1:5 or more were 100% (H44/76 and 5/99), 70%-100% (NZ98/254) and 90%-100% (M10713). INTERPRETATION: We found that waning of hSBA titres by 4 years of age occurred after 2 doses of 4CMenB vaccine administered at 12-24 months, and doses at 12-24 months have a priming effect on the immune system. A booster may be necessary to maintain hSBA titres of 1:5 or more among those children with increased disease risk. Trial registration: ClinicalTrials.gov, no. NCT01717638. PMID- 29038323 TI - Real-world data really matter. PMID- 29038324 TI - Federal leadership needed to realize national data set for cardiovascular care. PMID- 29038325 TI - Saskatchewan First Nations drafts suicide prevention plan. PMID- 29038326 TI - Health Canada to warn young people of cannabis risks in campaign. PMID- 29038327 TI - Beacon in developmental biology. PMID- 29038328 TI - Pay gap growing between family doctors, other specialists. PMID- 29038329 TI - Why public health is the most challenging specialty of all. PMID- 29038330 TI - Can growth hormone treatment improve growth in children with severe growth failure due to anorexia nervosa? A preliminary pilot study. AB - BACKGROUND/AIMS: Growth failure is a difficult but key aspect of care in children with anorexia nervosa (AN). The effects of hGH therapy have not been studied. The aim was to investigate the effect of hGH treatment on height velocity (HV) in children with AN. METHODS: We carried out a retrospective observational study. Ten girls diagnosed with AN at 10.0 +/- 1.9 years, with prolonged severe growth failure (HV < 2.5 cm/year for at least 18 months) at the age of 13.3 +/- 1.1 years and delayed puberty after nutritional rehabilitation, were treated with hGH (0.040 mg/kg/day) from a bone age of 10.9 +/- 1.7 years until they reached adult height. Height and HV were measured before treatment and at 12-month intervals during treatment. RESULTS: Mean body mass index SDS remained unchanged, but HV increased significantly, from a median of 1.0 (0.7-2.1) to 7.1 (6.0-9.5) cm/year after one year (P < 0.002) and 5.6 (4.8-6.2) cm/year after two years of treatment. Height SDS increased from -2.2 +/- 1.3 to -1.6 +/- 1.3 after one year (P < 0.002) and -1.1 +/- 1.5 after two years of GH treatment. Adult height (-0.1 +/- 1.0 SDS) was close to target height after 3.6 +/- 1.4 years of GH treatment. Serum IGF-I levels increased significantly during treatment (P < 0.01). The treatment was well tolerated. CONCLUSIONS: This proof-of-concept study shows that hGH treatment is associated with significant improvements in linear growth in adolescents with AN and severe growth failure. A randomized placebo-controlled trial is required to determine the ultimate impact of GH treatment in patients with this severe, rare condition. PMID- 29038331 TI - Ghrelin stimulation by hypothalamic-pituitary-adrenal axis activation depends on increasing cortisol levels. AB - Ghrelin plasma concentration increases in parallel to cortisol after a standardized psychological stress in humans, but the physiological basis of this interaction is unknown. We aimed to elucidate this question by studying the ghrelin response to pharmacological manipulation of the hypothalamic-pituitary adrenal (HPA) axis. Six lean, healthy male volunteers were examined under four experimental conditions. Blood samples were collected every 30 min for two sequential periods of two hours. Initially, a baseline period was followed by intravenous injection of a synthetic analog of ACTH (250 MUg). Subsequently, a single dose of metyrapone was administered at midnight and in the following morning, blood samples were collected for 2 h, followed by an intravenous injection of hydrocortisone (100 mg) with continued sampling. We show that increased cortisol serum levels secondary to ACTH stimulation or hydrocortisone administration are positively associated with plasma ghrelin levels, whereas central stimulation of the HPA axis by blocking cortisol synthesis with metyrapone is associated with decreased plasma ghrelin levels. Collectively, this suggests that HPA-axis-mediated elevations in ghrelin plasma concentration require increased peripheral cortisol levels, independent of central elevation of ACTH and possibly CRH levels. PMID- 29038332 TI - GATA transcription factors in testicular adrenal rest tumours. AB - Testicular adrenal rest tumours (TARTs) are benign adrenal-like testicular tumours that frequently occur in male patients with congenital adrenal hyperplasia. Recently, GATA transcription factors have been linked to the development of TARTs in mice. The aim of our study was to determine GATA expression in human TARTs and other steroidogenic tissues. We determined GATA expression in TARTs (n = 16), Leydig cell tumours (LCTs; n = 7), adrenal (foetal (n = 6) + adult (n = 10)) and testis (foetal (n = 13) + adult (n = 8)). We found testis-like GATA4, and adrenal-like GATA3 and GATA6 gene expressions by qPCR in human TARTs, indicating mixed testicular and adrenal characteristics of TARTs. Currently, no marker is available to discriminate TARTs from LCTs, leading to misdiagnosis and incorrect treatment. GATA3 and GATA6 mRNAs exhibited excellent discriminative power (area under the curve of 0.908 and 0.816, respectively), while immunohistochemistry did not. GATA genes contain several CREB-binding sites and incubation with 0.1 mM dibutyryl cAMP for 4 h stimulated GATA3, GATA4 and GATA6 expressions in a human foetal testis cell line (hs181.tes). Incubation of adrenocortical cells (H295RA) with ACTH, however, did not induce GATA expression in vitro Although ACTH did not dysregulate GATA expression in the only human ACTH sensitive in vitro model available, our results do suggest that aberrant expression of GATA transcription factors in human TARTs might be involved in TART formation. PMID- 29038333 TI - Germ granule-mediated RNA regulation in male germ cells. AB - Germ cells have exceptionally diverse transcriptomes. Furthermore, the progress of spermatogenesis is accompanied by dramatic changes in gene expression patterns, the most drastic of them being near-to-complete transcriptional silencing during the final steps of differentiation. Therefore, accurate RNA regulatory mechanisms are critical for normal spermatogenesis. Cytoplasmic germ cell-specific ribonucleoprotein (RNP) granules, known as germ granules, participate in posttranscriptional regulation in developing male germ cells. Particularly, germ granules provide platforms for the PIWI-interacting RNA (piRNA) pathway and appear to be involved both in piRNA biogenesis and piRNA targeted RNA degradation. Recently, other RNA regulatory mechanisms, such as the nonsense-mediated mRNA decay pathway have also been associated to germ granules providing new exciting insights into the function of germ granules. In this review article, we will summarize our current knowledge on the role of germ granules in the control of mammalian male germ cell's transcriptome and in the maintenance of fertility. PMID- 29038334 TI - Anatomy and Histology of the Human and Murine Prostate. AB - The human and murine prostate glands have similar functional roles in the generation of seminal fluid to assist in reproduction. There are significant differences in the anatomy and histology of murine and human prostate and knowledge of the normal anatomy and histology of the murine prostate is essential to interpreting changes in genetically engineered mouse models. In this review, the normal anatomy and histology of both human and mouse prostate will be described. PMID- 29038335 TI - Preclinical and Coclinical Studies in Prostate Cancer. AB - Men who develop metastatic castration-resistant prostate cancer (mCRPC) will invariably succumb to their disease. Thus there remains a pressing need for preclinical testing of new drugs and drug combinations for late-stage prostate cancer (PCa). Insights from the mCRPC genomic landscape have revealed that, in addition to sustained androgen receptor (AR) signaling, there are other actionable molecular alterations and distinct molecular subclasses of PCa; however, the rate at which this knowledge translates into patient care via current preclinical testing is painfully slow and inefficient. Here, we will highlight the issues involved and discuss a new translational platform, "the co clinical trial project," to expedite current preclinical studies and optimize clinical trial and experimental drug testing. With this platform, in vivo preclinical and early clinical studies are closely aligned, enabling in vivo testing of drugs using genetically engineered mouse models (GEMMs) in defined genetic contexts to personalize individual therapies. We will discuss the principles and essential components of this novel paradigm, representative success stories and future therapeutic options for mCRPC that should be explored. PMID- 29038336 TI - The K-Ras, N-Ras, and H-Ras Isoforms: Unique Conformational Preferences and Implications for Targeting Oncogenic Mutants. AB - Ras controls a multitude of cellular signaling processes, including cell proliferation, differentiation, and apoptosis. Deregulation of Ras cycling often promotes tumorigenesis and various other developmental disorders, termed RASopothies. Although the structure of Ras has been known for many decades, it is still one of the most highly sought-after drug targets today, and is often referred to as "undruggable." At the center of this paradoxical protein is a lack of understanding of fundamental differences in the G domains between the highly similar Ras isoforms and common oncogenic mutations, despite the immense wealth of knowledge accumulated about this protein to date. A shift in the field during the past few years toward a high-resolution understanding of the structure confirms the hypothesis that each isoform and oncogenic mutation must be considered individually, and that not all Ras mutations are created equal. For the first time in Ras history, we have the ability to directly compare the structures of each wild-type isoform to construct a "base-line" understanding, which can then be used as a springboard for analyzing the effects of oncogenic mutations on the structure-function relationship in Ras. This is a fundamental and large step toward the goal of developing personalized therapies for patients with Ras-driven cancers and diseases. PMID- 29038337 TI - RNA polymerase II primes Polycomb-repressed developmental genes throughout terminal neuronal differentiation. AB - Polycomb repression in mouse embryonic stem cells (ESCs) is tightly associated with promoter co-occupancy of RNA polymerase II (RNAPII) which is thought to prime genes for activation during early development. However, it is unknown whether RNAPII poising is a general feature of Polycomb repression, or is lost during differentiation. Here, we map the genome-wide occupancy of RNAPII and Polycomb from pluripotent ESCs to non-dividing functional dopaminergic neurons. We find that poised RNAPII complexes are ubiquitously present at Polycomb repressed genes at all stages of neuronal differentiation. We observe both loss and acquisition of RNAPII and Polycomb at specific groups of genes reflecting their silencing or activation. Strikingly, RNAPII remains poised at transcription factor genes which are silenced in neurons through Polycomb repression, and have major roles in specifying other, non-neuronal lineages. We conclude that RNAPII poising is intrinsically associated with Polycomb repression throughout differentiation. Our work suggests that the tight interplay between RNAPII poising and Polycomb repression not only instructs promoter state transitions, but also may enable promoter plasticity in differentiated cells. PMID- 29038338 TI - Infectious complications of CD19-targeted chimeric antigen receptor-modified T cell immunotherapy. AB - Lymphodepletion chemotherapy with CD19-targeted chimeric antigen receptor modified T (CAR-T)-cell immunotherapy is a novel treatment for refractory or relapsed B-cell malignancies. Infectious complications of this approach have not been systematically studied. We evaluated infections occurring between days 0 to 90 in 133 patients treated with CD19 CAR-T cells in a phase 1/2 study. We used Poisson and Cox regression to evaluate pre- and posttreatment risk factors for infection, respectively. The cohort included patients with acute lymphoblastic leukemia (ALL; n = 47), chronic lymphocytic leukemia (n = 24), and non-Hodgkin lymphoma (n = 62). There were 43 infections in 30 of 133 patients (23%) within 28 days after CAR-T-cell infusion with an infection density of 1.19 infections for every 100 days at risk. There was a lower infection density of 0.67 between days 29 and 90 (P = .02). The first infection occurred a median of 6 days after CAR-T cell infusion. Six patients (5%) developed invasive fungal infections and 5 patients (4%) had life-threatening or fatal infections. Patients with ALL, >=4 prior antitumor regimens, and receipt of the highest CAR-T-cell dose (2 * 107 cells per kg) had a higher infection density within 28 days in an adjusted model of baseline characteristics. Cytokine release syndrome (CRS) severity was the only factor after CAR-T-cell infusion associated with infection in a multivariable analysis. The incidence of infections was comparable to observations from clinical trials of salvage chemoimmunotherapies in similar patients. This trial was registered at www.clinicaltrials.gov as #NCT01865617. PMID- 29038340 TI - Frontline brentuximab vedotin in combination with dacarbazine or bendamustine in patients aged >=60 years with HL. AB - Patients aged >=60 years with treatment-naive Hodgkin lymphoma (HL) have few treatment options and inferior survival due to treatment-related toxicities and comorbidities. This phase 2, nonrandomized, open-label study evaluated brentuximab vedotin (BV) monotherapy (results previously reported), BV plus dacarbazine (DTIC), and BV plus bendamustine. Patients had classical HL and were ineligible for or declined frontline chemotherapy. Twenty-two patients received 1.8 mg/kg BV and 375 mg/m2 DTIC for up to 12 cycles, and 20 more patients received 1.8 mg/kg BV plus 90 or 70 mg/m2 bendamustine for up to 6 cycles (dose reduced due to toxicity). Subsequent BV monotherapy was allowed. Approximately 30 patients were to receive BV plus bendamustine; however, the incidence of serious adverse events (65%) and 2 deaths on study led to discontinuation of bendamustine and cessation of enrollment. Most patients had stage III/IV disease, and approximately half had >=3 comorbidities or were impaired in >=1 aspect that significantly interfered with quality of life. For BV plus DTIC, the objective response rate (ORR) was 100% and the complete remission (CR) rate was 62%. To date, the median progression-free survival (PFS) is 17.9 months. For BV plus bendamustine, the ORR was 100% and the CR rate was 88%. Neither the median PFS nor overall survival was reached. For elderly patients with HL, BV plus DTIC may be a frontline option based on tolerability and response duration. Despite activity, BV plus bendamustine is not a tolerable regimen in these patients. This trial was registered at www.clinicaltrials.gov as #NCT01716806. PMID- 29038341 TI - Europe steps up action against vaccine hesitancy as measles outbreaks continue. PMID- 29038339 TI - Reclassifying patients with early-stage Hodgkin lymphoma based on functional radiographic markers at presentation. AB - The presence of bulky disease in Hodgkin lymphoma (HL), traditionally defined with a 1-dimensional measurement, can change a patient's risk grouping and thus the treatment approach. We hypothesized that 3-dimensional measurements of disease burden obtained from baseline 18F-fluorodeoxyglucose positron emission tomography-computed tomography (PET-CT) scans, such as metabolic tumor volume (MTV) and total lesion glycolysis (TLG), would more accurately risk-stratify patients. To test this hypothesis, we reviewed pretreatment PET-CT scans of patients with stage I-II HL treated at our institution between 2003 and 2013. Disease was delineated on prechemotherapy PET-CT scans by 2 methods: (1) manual contouring and (2) subthresholding of these contours to give the tumor volume with standardized uptake value >=2.5. MTV and TLG were extracted from the threshold volumes (MTVt, TLGt) and from the manually contoured soft-tissue volumes. At a median follow-up of 4.96 years for the 267 patients evaluated, 27 patients were diagnosed with relapsed or refractory disease and 12 died. Both MTVt and TLGt were highly correlated with freedom from progression and were dichotomized with 80th percentile cutoff values of 268 and 1703, respectively. Consideration of MTV and TLG enabled restratification of early unfavorable HL patients as having low- and high-risk disease. We conclude that MTV and TLG provide a potential measure of tumor burden to aid in risk stratification of early unfavorable HL patients. PMID- 29038342 TI - Health Beliefs and the Developmental Treatment Cascade. PMID- 29038343 TI - Beliefs Regarding Development and Early Intervention Among Low-Income African American and Hispanic Mothers. AB - OBJECTIVES: Understand the role of health beliefs in shaping maternal decisions regarding help-seeking for children with developmental delay (DD) and explore differences between African American and Hispanic mothers. METHODS: Open-ended, semistructured interviews were conducted with African American and Hispanic mothers of children aged 0 to 36 months with DD. Interviews were recorded, transcribed, and analyzed by using inductive content analysis. RESULTS: Mothers (n = 22) were African American (36%) or Hispanic (64%), 25 to 34 years old (64%), had less than a high school education (59%), and had children receiving public insurance (95%). Five major themes emerged describing the role of maternal health beliefs in shaping key stages of the help-seeking pathway for children with DD: (1) "I can see" (observing other children and making comparisons); (2) "Children are different and develop in their own time" (perceiving that their child might be different, but not necessarily delayed); (3) "It's not that I don't trust the doctor" (relying on social networks rather than pediatricians to inform the help seeking pathway); (4) "I got so much going on" (difficulty prioritizing early intervention [EI] because of competing stressors); and (5) limited and conflicting information (delaying or forgoing EI because of limited or conflicting information). Differences between African American and Hispanic mothers are also described. CONCLUSIONS: Understanding maternal health beliefs and expectations regarding DD and EI, acknowledging the influence of social networks on help-seeking, and addressing social and financial stressors are critical to ensuring that children with DD are identified and supported at an early age. PMID- 29038345 TI - Administering xCT Inhibitors Based on Circadian Clock Improves Antitumor Effects. AB - Clock genes encoding transcription factors that regulate circadian rhythms may inform chronomodulated chemotherapy, where time-dependent dose alterations might affect drug efficacy and reduce side effects. For example, inhibiting the essential cystine transporter xCT with sulfasalazine induces growth arrest in cancer cells. Although the anticancer effects of sulfasalazine have been studied extensively, its effects on transcriptional control of xCT expression have not been studied. Here, we show that sulfasalazine administration during the period of increased xCT expression improves its anticancer effects and that the Clock gene itself induces xCT expression and regulates its circadian rhythm. Our findings highlight the clinical potential of chronomodulated chemotherapy and the importance of xCT-mediated transcriptional regulation in the utility of such strategies. Cancer Res; 77(23); 6603-13. (c)2017 AACR. PMID- 29038344 TI - Blocking Myristoylation of Src Inhibits Its Kinase Activity and Suppresses Prostate Cancer Progression. AB - Protein N-myristoylation enables localization to membranes and helps maintain protein conformation and function. N-myristoyltransferases (NMT) catalyze co- or posttranslational myristoylation of Src family kinases and other oncogenic proteins, thereby regulating their function. In this study, we provide genetic and pharmacologic evidence that inhibiting the N-myristoyltransferase NMT1 suppresses cell-cycle progression, proliferation, and malignant growth of prostate cancer cells. Loss of myristoylation abolished the tumorigenic potential of Src and its synergy with androgen receptor in mediating tumor invasion. We identified the myristoyl-CoA analogue B13 as a small-molecule inhibitor of NMT1 enzymatic activity. B13 exposure blocked Src myristoylation and Src localization to the cytoplasmic membrane, attenuating Src-mediated oncogenic signaling. B13 exerted its anti-invasive and antitumor effects against prostate cancer cells, with minimal toxic side-effects in vivo Structural optimization based on structure-activity relationships enabled the chemical synthesis of LCL204, with enhanced inhibitory potency against NMT1. Collectively, our results offer a preclinical proof of concept for the use of protein myristoylation inhibitors as a strategy to block prostate cancer progression. Cancer Res; 77(24); 6950-62. (c)2017 AACR. PMID- 29038347 TI - An Akt3 Splice Variant Lacking the Serine 472 Phosphorylation Site Promotes Apoptosis and Suppresses Mammary Tumorigenesis. AB - The Akt pathway is a well-known promoter of tumor malignancy. Akt3 is expressed as two alternatively spliced variants, one of which lacks the key regulatory serine 472 phosphorylation site. Whereas the function of full-length Akt3 isoform (Akt3/+S472) is well-characterized, that of Akt3/-S472 isoform remains unknown. Despite being expressed at a substantially lower level than Akt3/+S472 in triple negative breast cancer cells, specific ablation of Akt3/-S472 enhanced, whereas overexpression, suppressed mammary tumor growth, consistent with a significant association with patient survival duration relative to Akt3/+S472. These effects were due to striking induction of apoptosis, which was mediated by Bim upregulation, leading to conformational activation of Bax and caspase-3 processing. Bim accumulation was caused by marked endocytosis of EGF receptors with concomitant ERK attenuation, which stabilizes BIM. These findings demonstrate an unexpected function of an endogenously expressed Akt isoform in promoting, as opposed to suppressing, apoptosis, underscoring that Akt isoforms may exert dissonant functions in malignancy.Significance: These results illuminate an unexpected function for an endogenously expressed Akt isoform in promoting apoptosis, underscoring the likelihood that different Akt isoforms exert distinct functions in human cancer. Cancer Res; 78(1); 103-14. (c)2017 AACR. PMID- 29038349 TI - Correction: How tetraspanins shape endothelial and leukocyte nano-architecture during inflammation. PMID- 29038346 TI - ATR Is a Therapeutic Target in Synovial Sarcoma. AB - Synovial sarcoma (SS) is an aggressive soft-tissue malignancy characterized by expression of SS18-SSX fusions, where treatment options are limited. To identify therapeutically actionable genetic dependencies in SS, we performed a series of parallel, high-throughput small interfering RNA (siRNA) screens and compared genetic dependencies in SS tumor cells with those in >130 non-SS tumor cell lines. This approach revealed a reliance of SS tumor cells upon the DNA damage response serine/threonine protein kinase ATR. Clinical ATR inhibitors (ATRi) elicited a synthetic lethal effect in SS tumor cells and impaired growth of SS patient-derived xenografts. Oncogenic SS18-SSX family fusion genes are known to alter the composition of the BAF chromatin-remodeling complex, causing ejection and degradation of wild-type SS18 and the tumor suppressor SMARCB1. Expression of oncogenic SS18-SSX fusion proteins caused profound ATRi sensitivity and a reduction in SS18 and SMARCB1 protein levels, but an SSX18-SSX1 Delta71-78 fusion containing a C-terminal deletion did not. ATRi sensitivity in SS was characterized by an increase in biomarkers of replication fork stress (increased gammaH2AX, decreased replication fork speed, and increased R-loops), an apoptotic response, and a dependence upon cyclin E expression. Combinations of cisplatin or PARP inhibitors enhanced the antitumor cell effect of ATRi, suggesting that either single-agent ATRi or combination therapy involving ATRi might be further assessed as candidate approaches for SS treatment. Cancer Res; 77(24); 7014-26. (c)2017 AACR. PMID- 29038348 TI - STK33 Promotes Growth and Progression of Pancreatic Cancer as a Critical Downstream Mediator of HIF1alpha. AB - The serine/threonine kinase STK33 has been implicated in cancer cell proliferation. Here, we provide evidence of a critical role for STK33 in the pathogenesis and metastatic progression of pancreatic ductal adenocarcinoma (PDAC). STK33 expression in PDAC was regulated by the hypoxia-inducible transcription factor HIF1alpha. In human PDAC specimens, STK33 was overexpressed and associated with poor prognosis. Enforced STK33 expression promoted PDAC proliferation, migration, invasion, and tumor growth, whereas STK33 depletion exerted opposing effects. Mechanistic investigations showed that HIF1alpha regulated STK33 via direct binding to a hypoxia response element in its promoter. In showing that dysregulated HIF1alpha/STK33 signaling promotes PDAC growth and progression, our results suggest STK33 as a candidate therapeutic target to improve PDAC treatment. Cancer Res; 77(24); 6851-62. (c)2017 AACR. PMID- 29038351 TI - Differences in oxidative metabolism modulation induced by ischemia/reperfusion between trained and untrained individuals assessed by NIRS. AB - Endurance training is associated with skeletal muscle adaptations that regulate the oxidative metabolism during ischemia/reperfusion. The aim of this study was to noninvasively assess in vivo differences in the oxidative metabolism activity during ischemia/reperfusion between trained and untrained individuals, using near infrared spectroscopy (NIRS) combined with a vascular occlusion test (VOT) technique (NIRS-VOT). Sixteen untrained (26.3 +/- 5.1 year) and seventeen trained (29.4 +/- 4.9 year) healthy young adult men were submitted to a VOT (2 min baseline, 5 min occlusion, and 8 min reperfusion). Oxygen utilization was estimated from the area under the curve of the NIRS-derived deoxyhemoglobin [HHb] signal during occlusion (AUCocc). Muscle reperfusion was derived from the area above the curve (AACrep) of the [HHb] signal after cuff release. The AUCocc of the untrained participants (21010 +/- 9553 % . s) was significantly larger than the AUCocc of their trained counterparts (12320 +/- 3283 % . s); P = 0.001). The AACrep of the untrained participants (5928 +/- 3769 % . s) was significantly larger than the AACrep of the trained participants (3745 +/- 1900 % . s; P = 0.042). There was a significant correlation between AUCocc and AACrep (r = 0.840; P = 0.001). NIRS assessment of oxidative metabolism showed that trained individuals are more efficient in shifting between oxidative and anaerobic metabolism in response to ischemia and reperfusion. PMID- 29038350 TI - Male apoE*3-Leiden.CETP mice on high-fat high-cholesterol diet exhibit a biphasic dyslipidemic response, mimicking the changes in plasma lipids observed through life in men. AB - Physiological adaptations resulting in the development of the metabolic syndrome in man occur over a time span of several decades. This combined with the prohibitive financial cost and ethical concerns to measure key metabolic parameters repeatedly in subjects for the major part of their life span makes that comprehensive longitudinal human data sets are virtually nonexistent. While experimental mice are often used, little is known whether this species is in fact an adequate model to better understand the mechanisms that drive the metabolic syndrome in man. We took up the challenge to study the response of male apoE*3 Leiden.CETP mice (with a humanized lipid profile) to a high-fat high-cholesterol diet for 6 months. Study parameters include body weight, food intake, plasma and liver lipids, hepatic transcriptome, VLDL - triglyceride production and importantly the use of stable isotopes to measure hepatic de novo lipogenesis, gluconeogenesis, and biliary/fecal sterol secretion to assess metabolic fluxes. The key observations include (1) high inter-individual variation; (2) a largely unaffected hepatic transcriptome at 2, 3, and 6 months; (3) a biphasic response curve of the main metabolic features over time; and (4) maximum insulin resistance preceding dyslipidemia. The biphasic response in plasma triglyceride and total cholesterol appears to mimic that of men in cross-sectional studies. Combined, these observations suggest that studies such as these can help to delineate the causes of metabolic derangements in patients suffering from metabolic syndrome. PMID- 29038352 TI - Differential relationships of hepatic and epicardial fat to body composition in HIV. AB - HIV-infected patients commonly experience changes in central and peripheral fat content as well as ectopic fat accumulation. However, whether hepatic and epicardial fat stores relate differentially to body composition or how these associations are modified by HIV status has not been well explored. A previously recruited sample of 124 HIV-infected patients and 58 healthy controls had undergone dual energy X-ray absorptiometry (DEXA) and computed tomography (CT) from which body composition measures, liver-spleen ratio, and epicardial fat volume were obtained. Unique to the HIV-infected group, there was a parabolic association between abdominal subcutaneous adipose tissue (SAT) area and liver spleen ratio (P = 0.03, inflection point 324 cm2) such that hepatic fat content was greatest at the extremes of low and high SAT A quadratic model also closely described the relationship between mean leg fat and liver-spleen ratio among patients with HIV (P = 0.02, inflection point 4.7 kg), again suggesting greater liver fat content with both low and high leg fat. Notably, an analogous relationship of epicardial fat with SAT was not evident among HIV-infected individuals or healthy controls. In contrast, visceral adipose tissue (VAT) linearly related to both liver-spleen ratio in HIV and epicardial fat volume irrespective of HIV status in multivariable models. In conclusion, our analyses implicate both low and high SAT as risk factors for hepatic fat accumulation in HIV These findings add to growing evidence of SAT dysfunction in the setting of HIV infection, and highlight key physiologic differences between hepatic and epicardial fat depots. PMID- 29038353 TI - Cell cycle dependent expression of the CCK2 receptor by gastrointestinal myofibroblasts: putative role in determining cell migration. AB - The well-known action of the gastric hormone gastrin in stimulating gastric acid secretion is mediated by activation of cholecystokinin-2 receptors (CCK2R). The latter are expressed by a variety of cell types suggesting that gastrin is implicated in multiple functions. During wound healing in the stomach CCK2R may be expressed by myofibroblasts. We have now characterized CCK2R expression in cultured myofibroblasts. Immunocytochemistry showed that a relatively small proportion (1-6%) of myofibroblasts expressed the receptor regardless of the region of the gut from which they were derived, or whether from cancer or control tissue. Activation of CCK2R by human heptadecapeptide gastrin (hG17) increased intracellular calcium concentrations in a small subset of myofibroblasts indicating the presence of a functional receptor. Unexpectedly, we found over 80% of cells expressing CCK2R were also labeled with 5-ethynyl-2'-deoxyuridine (EdU) which is incorporated into DNA during S-phase of the cell cycle. hG17 did not stimulate EdU incorporation but increased migration of both EdU-labeled and unlabelled myofibroblasts; the migratory response was inhibited by a CCK2R antagonist and by an inhibitor of IGF receptor tyrosine kinase; hG17 also increased IGF-2 transcript abundance. The data suggest myofibroblasts express CCK2R in a restricted period of the cell cycle during S-phase, and that gastrin accelerates migration of these cells; it also stimulates migration of adjacent cells probably through paracrine release of IGF. Together with previous findings, the results raise the prospect that gastrin controls the position of dividing myofibroblasts which may be relevant in wound healing and cancer progression in the gastrointestinal tract. PMID- 29038354 TI - Association of urinary citrate excretion, pH, and net gastrointestinal alkali absorption with diet, diuretic use, and blood glucose concentration. AB - Urinary citrate (Ucit) protects against urinary stone formation. Acid base status and diet influence Ucit. However, the effect of demographics, diet, and glucose metabolism on Ucit excretion, urinary pH (U-pH) and net gastrointestinal alkali absorption (NAA) are not known. Twenty-four hour urine samples, blood glucose, creatinine, and cystatin C were obtained from non-Hispanic white sibships in Rochester, MN (n = 446; 64.5 +/- 9 years; 58% female). Diet was assessed by a food frequency questionnaire. The impact of blood glucose, demographics and dietary elements on Ucit excretion, U-pH, and NAA were evaluated in bivariate and multivariable models and interaction models that included age, sex, and weight. NAA significantly associated with Ucit and U-pH In multivariate models Ucit increased with age, weight, eGFRCys, and blood glucose, but decreased with loop diuretic and thiazide use. U-pH decreased with serum creatinine, blood glucose, and dietary protein but increased with dietary potassium. NAA was higher in males and increased with age, weight, eGFRCys and dietary potassium. Significant interactions were observed for Ucit excretion with age and blood glucose, weight and eGFRCys, and sex and thiazide use. Blood glucose had a significant and independent effect on U-pH and also Ucit. This study provides the first evidence that blood glucose could influence urinary stone risk independent of urinary pH, potentially providing new insight into the association of obesity and urinary stone disease. PMID- 29038355 TI - Isolated heart model demonstrates evidence of contractile and diastolic dysfunction in right ventricles from rats with sugen/hypoxia-induced pulmonary hypertension. AB - Although extensively used for the study of left ventricular function, limited experience exists with the isolated heart model in the evaluation of right ventricular (RV) function. In particular, no published experience exists with this tool in sugen/hypoxia-induced pulmonary hypertension (SuHx-PH), a frequently used model of severe and progressive PH We sought to characterize markers of RV contractile and diastolic function in SuHx-PH and to establish their relationship with markers of maladaptive RV remodeling. Hearts were excised from anesthetized Sprague Dawley rats with or without SuHx-PH and perfused via the aorta using a Langendorff preparation. We explored the Frank-Starling relationship of RV function (RV developed pressure, dP/dtmax, and dP/dtmin; all normalized to RV mass) by increasing RV end-diastolic pressure (RVEDP) from 0 to 40 mmHg. Functional studies were complemented by quantification of RV pro-apoptotic signaling (bcl2/bax), procontractile signaling (apelin), and stress response signaling (p38MAPK activation). Pearson's correlation analysis was performed for functional and biochemical parameters. SuHx-RVs exhibited severe RV dysfunction with marked hypertrophy and decreased echocardiographic cardiac output. For any given RVEDP, SuHx-RVs demonstrated less developed pressure and lower dP/dtmax, as well as less pronounced dP/dtmin, suggestive of decreased contractile and diastolic function. SuHx-RVs exhibited decreased bcl2/bax ratios, apelin expression, and p38MAPK activation. Bcl2/bax and apelin RNA abundance correlated positively with RV developed pressure and dP/dtmax and negatively with dP/dtmin p38MAPK activation correlated positively with RV developed pressure. We conclude that SuHx-RVs exhibit severe contractile and diastolic dysfunction. Increased pro apoptotic signaling and attenuated procontractile and stress response signaling may contribute to these functional alterations. PMID- 29038356 TI - Local production of neurostradiol affects gonadotropin-releasing hormone (GnRH) secretion at mid-gestation in Lagostomus maximus (Rodentia, Caviomorpha). AB - Females of the South American plains vizcacha, Lagostomus maximus, show peculiar reproductive features such as massive polyovulation up to 800 oocytes per estrous cycle and an ovulatory process around mid-gestation arising from the reactivation of the hypothalamic-hypophyseal-ovary (H.H.O.) axis. Estradiol (E2) regulates gonadotropin-releasing hormone (GnRH) expression. Biosynthesis of estrogens results from the aromatization of androgens by aromatase, which mainly occurs in the gonads, but has also been described in the hypothalamus. The recently described correlation between GnRH and ERalpha expression patterns in the hypothalamus of the vizcacha during pregnancy, with coexpression in the same neurons of the medial preoptic area, suggests that hypothalamic synthesis of E2 may affect GnRH neurons and contribute with systemic E2 to modulate GnRH delivery during the gestation. To elucidate this hypothesis, hypothalamic expression and the action of aromatase on GnRH release were evaluated in female vizcachas throughout pregnancy. Aromatase and GnRH expression was increased significantly in mid-pregnant and term-pregnant vizcachas compared to early-pregnant and nonpregnant females. In addition, aromatase and GnRH were colocalized in neurons of the medial preoptic area of the hypothalamus throughout gestation. The blockage of the negative feedback of E2 induced by the inhibition of aromatase resulted in a significant increment of GnRH-secreted mass by hypothalamic explants. E2 produced in the same neurons as GnRH may drive intracellular E2 to higher levels than those obtained from systemic circulation alone. This may trigger for a prompt GnRH availability enabling H.H.O. activity at mid-gestation with ovulation and formation of accessory corpora lutea with steroidogenic activity that produce the necessary progesterone to maintain gestation to term and guarantee the reproductive success. PMID- 29038357 TI - Exposure to electronic cigarette vapors affects pulmonary and systemic expression of circadian molecular clock genes. AB - E-cigarette use has exploded in the past years, especially among young adults and smokers desiring to quit. While concerns are mostly based on the presence of nicotine and flavors, pulmonary effects of propylene glycol and glycerol inhalation, the main solvents of e-liquid have not been thoroughly investigated. In this preclinical study, mice were exposed 2 h daily for up to 8 weeks to vapors of propylene glycol and/or glycerol generated by an e-cigarette. Lung transcriptome analysis revealed it affected the expression level of genes of the circadian molecular clock, despite causing no inflammatory response. Periodical sacrifices showed that the rhythmicity of these regulatory genes was indeed altered in the lungs, but also in the liver, kidney, skeletal muscle, and brain. E-cigarette exposure also altered the expression of rhythmic genes (i.e., hspa1a and hspa1b), suggesting that alterations to the 'clock genes' could translate into systemic biological alterations. This study reveals that the major solvents used in e-cigarettes propylene glycol and glycerol, not nicotine or flavors, have unsuspected effects on gene expression of the molecular clock that are to be taken seriously, especially considering the fundamental role of the circadian rhythm in health and disease. PMID- 29038358 TI - Expression of genes involved in carbohydrate-lipid metabolism in muscle and fat tissues in the initial stage of adult-age obesity in fed and fasted mice. AB - C57Bl mice exhibit impaired glucose metabolism by the late adult age under standard living conditions. The aim of this study was to evaluate white adipose tissue (WAT), brown adipose tissue (BAT), and skeletal muscle expression of genes involved in carbohydrate-lipid metabolism at postpubertal stages preceding the late adult age in C57Bl mice. Muscle mRNA levels of uncoupling protein 3 (Ucp3) and carnitine palmitoyltransferase 1 (Cpt1) (indicators of FFA oxidation), WAT mRNA levels of hormone-sensitive lipase (Lipe) and lipoprotein lipase (Lpl) (indicators of lipolysis and lipogenesis), muscle and WAT mRNA levels of the type 4 glucose transporter Slc2a4 (indicators of insulin-dependent glucose uptake), and BAT mRNA levels of uncoupling protein 1 (Ucp1) (indicator of thermogenesis) were measured in fed and 16 h-fasted mice in three age groups: 10-week-old (young), 15-week-old (early adult), and 30-week-old (late adult). Weight gain from young to early adult age was not accompanied by changes in WAT and BAT indexes and biochemical blood parameters. Weight gain from early to late adult age was accompanied by increased WAT and BAT indexes and decreased glucose tolerance. Muscle Ucp3 and Cpt1 mRNA levels and WAT Lipe and Slc2a4 mRNA levels increased from young to early adult age and then sharply decreased by the late adult age. Moreover, BAT Ucp1 mRNA level decreased in the late adult age. Fasting failed to increase muscle Cpt1 mRNA levels in late adult mice. These transcriptional changes could contribute to impaired glucose metabolism and the onset of obesity in late adult mice during normal development. PMID- 29038359 TI - Hyperoxia reduces insulin release and induces mitochondrial dysfunction with possible implications for hyperoxic treatment of neonates. AB - We previously showed that hyperoxia in vitro negatively affects beta cells of the rat. Here, we tested for possible clinical significance as well as mitochondrial interactions by hyperoxia, using human islets (function and viability), INS-1 832/13 cells (mitochondrial metabolism), and mouse neonates (effects in vivo). Lastly, we assessed relevant parameters in a cohort of individuals born preterm and then exposed to hyperoxia. Human islets and INS-1 832/13 cells were exposed to 24 h of hyperoxia (90-92% oxygen). Mouse neonates were subjected to 5 days of continuous hyperoxia. Individuals born preterm were evaluated in terms of glucose homeostasis and beta cell function by HbA1c and the HOMA2 formula. In human islets, hyperoxia significantly reduced glucose-stimulated insulin secretion by 42.2 +/- 5.3% and viability assessed by MTT by 22.5 +/- 5.4%. Hyperoxia down regulated mitochondrial complex II by 21 +/- 5% and upregulated complex III by 26 +/- 10.1% and complex IV by 37 +/- 10.6%. Partly similar effects on mitochondrial complexes were found in hyperoxia-exposed INS-1 832/13 cells. Exposure to hyperoxia swiftly reduced oxygen consumption in these cells and increased mitochondrial uncoupling. Hyperoxia transiently but significantly reduced insulin release in mouse neonates. Individuals born preterm displayed higher HbA1c versus controls, as well as insulin resistance. Thus, hyperoxia exerts negative effects in vitro on human beta cells and results indicate inhibitory effects on insulin secretion in vivo in mouse neonates. Negative effects may be lessened by the demonstrated swift and profound mitochondrial adaptability. Our findings open the possibility that hyperoxia could negatively affect beta cells of preterm human neonates. PMID- 29038360 TI - Carotid sinus hypersensitivity: block of the sternocleidomastoid muscle does not affect responses to carotid sinus massage in healthy young adults. AB - The arterial baroreflex is crucial for short-term blood pressure control - abnormal baroreflex function predisposes to syncope and falling. Hypersensitive responses to carotid baroreflex stimulation using carotid sinus massage (CSM) are common in older adults and may be associated with syncope. The pathophysiology of this hypersensitivity is unknown, but chronic denervation of the sternocleidomastoid muscles is common in elderly patients with carotid sinus hypersensitivity (CSH), and is proposed to interfere with normal integration of afferent firing from the carotid baroreceptors with proprioceptive feedback from the sternocleidomastoids, producing large responses to CSM. We hypothesized that simulation of sternocleidomastoid "denervation" using pharmacological blockade would increase cardiovascular responses to CSM. Thirteen participants received supine and tilted CSM prior to intramuscular injections (6-8 mL distributed over four sites) of 2% lidocaine hydrochloride, and 0.9% saline (placebo) in contralateral sternocleidomastoid muscles. Muscle activation was recorded with electromyography (EMG) during maximal unilateral sternocleidomastoid contraction both pre- and postinjection. Supine and tilted CSM were repeated following injections and responses compared to preinjection. Following lidocaine injection, the muscle activation fell to 23 +/- 0.04% of the preinjection value (P < 0.001), confirming neural block of the sternocleidomastoid muscles. Cardiac (RRI, RR interval), forearm vascular resistance (FVR), and systolic arterial pressure (SAP) responses to CSM did not increase after lidocaine injection in either supine or tilted positions (supine: DeltaRRI -72 +/- 31 ms, DeltaSAP +2 +/- 1 mmHg, DeltaFVR +4 +/- 4%; tilted: DeltaRRI -20 +/- 13 ms, DeltaSAP +2 +/- 2 mmHg, DeltaFVR +2 +/- 4%; all P > 0.05). Neural block of the sternocleidomastoid muscles does not increase cardiovascular responses to CSM. The pathophysiology of CSH remains unknown. PMID- 29038361 TI - Tumor necrosis factor alpha decreases aquaporin 3 expression in intestinal epithelial cells through inhibition of constitutive transcription. AB - Inflammatory diseases of the gut are associated with altered electrolyte and water transport, leading to the development of diarrhea. Epithelially expressed aquaporins (AQPs) are downregulated in inflammation, although the mechanisms involved are not known. We hypothesized that AQP3 expression in intestinal epithelial cells is altered in intestinal inflammation and that these changes are driven by tumor necrosis factor (TNF) alpha Human colonic adenocarcinoma (HT-29) cells were treated with TNFalpha to investigate signaling mechanisms in vitro. AQP3 expression was assessed by real-time PCR and radiolabeled glycerol uptake, with select inhibitors and a luciferase reporter construct used to further elucidate intracellular signaling. AQP3 expression was downregulated in HT-29 cells treated with TNFalpha Luciferase reporter construct experiments revealed that TNFalpha downregulated constitutive transcriptional activity of the AQP3 promoter, and inhibition of MEK/ERK and nuclear factor kappaB (NF-kappaB) signaling prevented the decrease in AQP3 mRNA expression. Constitutive AQP3 expression was suppressed by specificity protein (Sp) 3, and knockdown of this transcription factor bound to the AQP3 promoter was able to partially prevent the TNFalpha-induced downregulation of AQP3. TNFalpha signals through MEK/ERK and NF kappaB to enhance the negative transcriptional control of AQP3 expression exerted by Sp3. Similar mechanisms regulate numerous ion channels, suggesting a common mechanism by which both ion and water transport are altered in inflammation. PMID- 29038362 TI - Cdc42 activation couples fluid shear stress to apical endocytosis in proximal tubule cells. AB - Cells lining the kidney proximal tubule (PT) respond to acute changes in glomerular filtration rate and the accompanying fluid shear stress (FSS) to regulate reabsorption of ions, glucose, and other filtered molecules and maintain glomerulotubular balance. Recently, we discovered that exposure of PT cells to FSS also stimulates an increase in apical endocytic capacity (Raghavan et al. PNAS, 111:8506-8511, 2014). We found that FSS triggered an increase in intracellular Ca2+ concentration ([Ca2+]i) that required release of extracellular ATP and the presence of primary cilia. In this study, we elucidate steps downstream of the increase in [Ca2+]i that link FSS-induced calcium increase to increased apical endocytic capacity. Using an intramolecular FRET probe, we show that activation of Cdc42 is a necessary step in the FSS-stimulated apical endocytosis cascade. Cdc42 activation requires the primary cilia and the FSS mediated increase in [Ca2+]i Moreover, Cdc42 activity and FSS-stimulated endocytosis are coordinately modulated by activators and inhibitors of calmodulin. Together, these data suggest a mechanism by which PT cell exposure to FSS is translated into enhanced endocytic uptake of filtered molecules. PMID- 29038363 TI - Moderate exercise training does not prevent the reduction in myocardial L-type Ca2+ channels protein expression at obese rats. AB - Authors have showed that obesity implicates cardiac dysfunction associated with myocardial L-type calcium channels (LTCCs) activity impairments, as well as moderate exercise training (MET) seems to be an important therapeutic tool. We tested the hypothesis that MET promotes improvements on LTCCS activity and protein expression at obesity induced by unsaturated high-fat diets, which could represent a protective effects against development of cardiovascular damage. Male Wistar rats were randomized in control (C, n = 40), which received a standard diet and obese (Ob; n = 40), which received high-fat diet. After 20 weeks, the animals were assigned at four groups: control (C; n = 12); control submitted to exercise training (ET; n = 14); obese (Ob; n = 10); and obese submitted to exercise training (ObET; n = 11). ET (5 days/week during 12 weeks) began in the 21th week and consisted of treadmill running that was progressively increased to reach 60 min. Final body weight (FBW), body fat (BF), adiposity index (AI), comorbidities, and hormones were evaluated. Cardiac remodeling was assessed by morphological and isolated papillary muscles function. LTCCs activity was determined using specific blocker, while protein expression of LTCCs was evaluated by Western blot. Unsaturated high-fat diet promoted obesity during all experimental protocol. MET controlled obesity process by decreasing of FBW, BF, and AI. Obesity implicated to LTCCs protein expression reduction and MET was not effective to prevent this condition. ET was efficient to promote several improvements to body composition and metabolic parameters; however, it was not able to prevent or reverse the downregulation of LTCCs protein expression at obese rats. PMID- 29038364 TI - Oral and intravenous pharmacokinetics of taurine in sprague-dawley rats: the influence of dose and the possible involvement of the proton-coupled amino acid transporter, PAT1, in oral taurine absorption. AB - Taurine is involved in various physiological processes, and one of the most abundant amino acids in human. The aim was to investigate the mechanism for intestinal absorption of taurine in vivo using also in vitro mechanistic studies. Taurine absorption was measured in male Sprague-Dawley rats at 10-997 mg/kg and 1 30 mg/kg for oral and intravenous administration, respectively. Oral absorption was measured in the presence of substrates for the proton-coupled amino acid transporter, PAT1, that is, 200 mg/kg proline (Pro) and sarcosine (Sar), and in the presence of 2-Amino-2-norbornanecarboxylic acid (BCH) (200 mg/kg). BCH is not an inhibitor of PAT1 or the taurine transporter, TauT, hence it was included as a negative control. In vitro studies investigating the transport mechanism of taurine were conducted in human intestinal Caco-2 cells. The pharmacokinetic investigations showed that intestinal taurine absorption was not saturable at the investigated doses, but that the time (tmax) to reach the maximal plasma concentration (Cmax) increased with dose. Furthermore, Sar and Pro, but not BCH, decreased taurine Cmax In vitro it was clearly shown that PAT1 mediated the cellular uptake of taurine and thereby facilitated the transepithelial taurine transport, which could be inhibited by Pro and Sar, but not BCH In vivo and in vitro results suggest that taurine absorption from the intestine is caused by PAT1. PMID- 29038365 TI - Muscle ion transporters and antioxidative proteins have different adaptive potential in arm than in leg skeletal muscle with exercise training. AB - It was evaluated whether upper-body compared to lower-body musculature exhibits a different phenotype in relation to capacity for handling reactive oxygen species (ROS), H+, La-, Na+, K+ and also whether it differs in adaptive potential to exercise training. Eighty-three sedentary premenopausal women aged 45 +/- 6 years (mean +/- SD) were randomized into a high-intensity intermittent swimming group (HIS, n = 21), a moderate-intensity swimming group (MOS, n = 21), a soccer group (SOC, n = 21), or a control group (CON, n = 20). Intervention groups completed three weekly training sessions for 15 weeks, and pre- and postintervention biopsies were obtained from deltoideus and vastus lateralis muscle. Before training, monocarboxylate transporter 4 (MCT4), Na+/K+ pump alpha2, and superoxide dismutase 2 (SOD2) expressions were lower (P < 0.05) in m deltoideus than in m vastus lateralis, whereas deltoid had higher (P < 0.05) Na+/H+ exchanger 1 (NHE1) expression. As a result of training, Na+/K+ pump alpha2 isoform expression was elevated only in deltoideus muscle, while upregulation (P < 0.05) of the alpha1 and beta1 subunits, phospholemman (FXYD1), NHE1, and superoxide dismutase 1 expression occurred exclusively in vastus lateralis muscle. The increased (P < 0.05) expression of MCT4 and SOD2 in deltoid muscle after HIS and vastus lateralis muscle after SOC were similar. In conclusion, arm musculature displays lower basal ROS, La-, K+ handling capability but higher Na+ dependent H+ extrusion capacity than leg musculature. Training-induced changes in the ion-transporting and antioxidant proteins clearly differed between muscle groups. PMID- 29038367 TI - A nonimmune function of T cells in promoting lung tumor progression. AB - The involvement of effector T cells and regulatory T (T reg) cells in opposing and promoting solid organ carcinogenesis, respectively, is viewed as a shifting balance between a breach versus establishment of tolerance to tumor or self antigens. We considered that tumor-associated T cells might promote malignancy via distinct mechanisms used by T cells in nonlymphoid organs to assist in their maintenance upon injury or stress. Recent studies suggest that T reg cells can participate in tissue repair in a manner separable from their immunosuppressive capacity. Using transplantable models of lung tumors in mice, we found that amphiregulin, a member of the epidermal growth factor family, was prominently up regulated in intratumoral T reg cells. Furthermore, T cell-restricted amphiregulin deficiency resulted in markedly delayed lung tumor progression. This observed deterrence in tumor progression was not associated with detectable changes in T cell immune responsiveness or T reg and effector T cell numbers. These observations suggest a novel "nonimmune" modality for intratumoral T reg and effector T cells in promoting tumor growth through the production of factors normally involved in tissue repair and maintenance. PMID- 29038368 TI - Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source. AB - On 17 August 2017, the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo interferometer detected gravitational waves (GWs) emanating from a binary neutron star merger, GW170817. Nearly simultaneously, the Fermi and INTEGRAL (INTErnational Gamma-Ray Astrophysics Laboratory) telescopes detected a gamma-ray transient, GRB 170817A. At 10.9 hours after the GW trigger, we discovered a transient and fading optical source, Swope Supernova Survey 2017a (SSS17a), coincident with GW170817. SSS17a is located in NGC 4993, an S0 galaxy at a distance of 40 megaparsecs. The precise location of GW170817 provides an opportunity to probe the nature of these cataclysmic events by combining electromagnetic and GW observations. PMID- 29038370 TI - A cosmic multimessenger gold rush. PMID- 29038369 TI - Electromagnetic evidence that SSS17a is the result of a binary neutron star merger. AB - Eleven hours after the detection of gravitational wave source GW170817 by the Laser Interferometer Gravitational-Wave Observatory and Virgo Interferometers, an associated optical transient, SSS17a, was identified in the galaxy NGC 4993. Although the gravitational wave data indicate that GW170817 is consistent with the merger of two compact objects, the electromagnetic observations provide independent constraints on the nature of that system. We synthesize the optical to near-infrared photometry and spectroscopy of SSS17a collected by the One-Meter Two-Hemisphere collaboration, finding that SSS17a is unlike other known transients. The source is best described by theoretical models of a kilonova consisting of radioactive elements produced by rapid neutron capture (the r process). We conclude that SSS17a was the result of a binary neutron star merger, reinforcing the gravitational wave result. PMID- 29038366 TI - Specifically differentiated T cell subset promotes tumor immunity over fatal immunity. AB - Allogeneic immune cells, particularly T cells in donor grafts, recognize and eliminate leukemic cells via graft-versus-leukemia (GVL) reactivity, and transfer of these cells is often used for high-risk hematological malignancies, including acute myeloid leukemia. Unfortunately, these cells also attack host normal tissues through the often fatal graft-versus-host disease (GVHD). Full separation of GVL activity from GVHD has yet to be achieved. Here, we show that, in mice and humans, a population of interleukin-9 (IL-9)-producing T cells activated via the ST2-IL-33 pathway (T9IL-33 cells) increases GVL while decreasing GVHD through two opposing mechanisms: protection from fatal immunity by amphiregulin expression and augmentation of antileukemic activity compared with T9, T1, and unmanipulated T cells through CD8alpha expression. Thus, adoptive transfer of allogeneic T9IL 33 cells offers an attractive approach for separating GVL activity from GVHD. PMID- 29038371 TI - Swift and NuSTAR observations of GW170817: Detection of a blue kilonova. AB - With the first direct detection of merging black holes in 2015, the era of gravitational wave (GW) astrophysics began. A complete picture of compact object mergers, however, requires the detection of an electromagnetic (EM) counterpart. We report ultraviolet (UV) and x-ray observations by Swift and the Nuclear Spectroscopic Telescope Array of the EM counterpart of the binary neutron star merger GW170817. The bright, rapidly fading UV emission indicates a high mass (~0.03 solar masses) wind-driven outflow with moderate electron fraction (Ye ~ 0.27). Combined with the x-ray limits, we favor an observer viewing angle of ~30 degrees away from the orbital rotation axis, which avoids both obscuration from the heaviest elements in the orbital plane and a direct view of any ultrarelativistic, highly collimated ejecta (a gamma-ray burst afterglow). PMID- 29038372 TI - A radio counterpart to a neutron star merger. AB - Gravitational waves have been detected from a binary neutron star merger event, GW170817. The detection of electromagnetic radiation from the same source has shown that the merger occurred in the outskirts of the galaxy NGC 4993, at a distance of 40 megaparsecs from Earth. We report the detection of a counterpart radio source that appears 16 days after the event, allowing us to diagnose the energetics and environment of the merger. The observed radio emission can be explained by either a collimated ultrarelativistic jet, viewed off-axis, or a cocoon of mildly relativistic ejecta. Within 100 days of the merger, the radio light curves will enable observers to distinguish between these models, and the angular velocity and geometry of the debris will be directly measurable by very long baseline interferometry. PMID- 29038374 TI - Early spectra of the gravitational wave source GW170817: Evolution of a neutron star merger. AB - On 17 August 2017, Swope Supernova Survey 2017a (SSS17a) was discovered as the optical counterpart of the binary neutron star gravitational wave event GW170817. We report time-series spectroscopy of SSS17a from 11.75 hours until 8.5 days after the merger. Over the first hour of observations, the ejecta rapidly expanded and cooled. Applying blackbody fits to the spectra, we measured the photosphere cooling from [Formula: see text] to [Formula: see text] kelvin, and determined a photospheric velocity of roughly 30% of the speed of light. The spectra of SSS17a began displaying broad features after 1.46 days and evolved qualitatively over each subsequent day, with distinct blue (early-time) and red (late-time) components. The late-time component is consistent with theoretical models of r-process-enriched neutron star ejecta, whereas the blue component requires high-velocity, lanthanide-free material. PMID- 29038376 TI - Development of cyanine probes with dinitrobenzene quencher for rapid fluorogenic protein labelling. AB - A multicolour protein labelling technique using a protein tag and fluorogenic probes is a powerful approach for spatio-temporal analyses of proteins in living cells. Since cyanine fluorophores have attractive properties for multicolour imaging of proteins, there is a huge demand to develop fluorogenic cyanine probes for specific protein labelling in living cells. Herein, we develop fluorogenic cyanine probes for labelling a protein tag by using a dinitrobenzene fluorescence quencher. The probes enhanced fluorescence intensity upon labelling reactions and emitted orange or far-red fluorescence. Intramolecular interactions between the cyanine fluorophores and the dinitrobenzene quencher led not only to fluorescence quenching of the probes in the free state but also to promotion of labelling reactions. Furthermore, the probes successfully imaged cell-surface proteins without a washing process. These findings offer valuable information on the design of fluorogenic cyanine probes and indicate that the probes are useful as novel live-cell imaging tools.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038373 TI - Illuminating gravitational waves: A concordant picture of photons from a neutron star merger. AB - Merging neutron stars offer an excellent laboratory for simultaneously studying strong-field gravity and matter in extreme environments. We establish the physical association of an electromagnetic counterpart (EM170817) with gravitational waves (GW170817) detected from merging neutron stars. By synthesizing a panchromatic data set, we demonstrate that merging neutron stars are a long-sought production site forging heavy elements by r-process nucleosynthesis. The weak gamma rays seen in EM170817 are dissimilar to classical short gamma-ray bursts with ultrarelativistic jets. Instead, we suggest that breakout of a wide-angle, mildly relativistic cocoon engulfing the jet explains the low-luminosity gamma rays, the high-luminosity ultraviolet-optical-infrared, and the delayed radio and x-ray emission. We posit that all neutron star mergers may lead to a wide-angle cocoon breakout, sometimes accompanied by a successful jet and sometimes by a choked jet. PMID- 29038375 TI - Light curves of the neutron star merger GW170817/SSS17a: Implications for r process nucleosynthesis. AB - On 17 August 2017, gravitational waves (GWs) were detected from a binary neutron star merger, GW170817, along with a coincident short gamma-ray burst, GRB 170817A. An optical transient source, Swope Supernova Survey 17a (SSS17a), was subsequently identified as the counterpart of this event. We present ultraviolet, optical, and infrared light curves of SSS17a extending from 10.9 hours to 18 days postmerger. We constrain the radioactively powered transient resulting from the ejection of neutron-rich material. The fast rise of the light curves, subsequent decay, and rapid color evolution are consistent with multiple ejecta components of differing lanthanide abundance. The late-time light curve indicates that SSS17a produced at least ~0.05 solar masses of heavy elements, demonstrating that neutron star mergers play a role in rapid neutron capture (r-process) nucleosynthesis in the universe. PMID- 29038378 TI - Current status and future challenges for molecular imaging. AB - Molecular imaging (MI), used in its wider sense of biology at the molecular level, is a field that lies at the intersection of molecular biology and traditional medical imaging. As advances in medicine have exponentially expanded over the last few decades, so has our need to better understand the fundamental behaviour of living organisms in a non-invasive and timely manner. This commentary draws from topics the authors addressed in their presentations at the 2017 Royal Society Meeting 'Challenges for chemistry in molecular imaging', as well as a discussion of where MI is today and where it is heading in the future.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038379 TI - Challenges for chemistry in molecular imaging. PMID- 29038377 TI - Recent development of nanoparticles for molecular imaging. AB - Molecular imaging enables us to non-invasively visualize cellular functions and biological processes in living subjects, allowing accurate diagnosis of diseases at early stages. For successful molecular imaging, a suitable contrast agent with high sensitivity is required. To date, various nanoparticles have been developed as contrast agents for medical imaging modalities. In comparison with conventional probes, nanoparticles offer several advantages, including controllable physical properties, facile surface modification and long circulation time. In addition, they can be integrated with various combinations for multimodal imaging and therapy. In this opinion piece, we highlight recent advances and future perspectives of nanomaterials for molecular imaging.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038380 TI - Integrating nanomedicine and imaging. AB - Biomedical engineering and its associated disciplines play a pivotal role in improving our understanding and management of disease. Motivated by past accomplishments, such as the clinical implementation of coronary stents, pacemakers or recent developments in antibody therapies, disease management now enters a new era in which precision imaging and nanotechnology-enabled therapeutics are maturing to clinical translation. Preclinical molecular imaging increasingly focuses on specific components of the immune system that drive disease progression and complications, allowing the in vivo study of potential therapeutic targets. The first multicentre trials highlight the potential of clinical multimodality imaging for more efficient drug development. In this perspective, the role of integrating engineering, nanotechnology, molecular imaging and immunology to yield precision medicine is discussed.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038381 TI - Has molecular imaging delivered to drug development? AB - Pharmaceutical research and development requires a systematic interrogation of a candidate molecule through clinical studies. To ensure resources are spent on only the most promising molecules, early clinical studies must understand fundamental attributes of the drug candidate, including exposure at the target site, target binding and pharmacological response in disease. Molecular imaging has the potential to quantitatively characterize these properties in small, efficient clinical studies. Specific benefits of molecular imaging in this setting (compared to blood and tissue sampling) include non-invasiveness and the ability to survey the whole body temporally. These methods have been adopted primarily for neuroscience drug development, catalysed by the inability to access the brain compartment by other means. If we believe molecular imaging is a technology platform able to underpin clinical drug development, why is it not adopted further to enable earlier decisions? This article considers current drug development needs, progress towards integration of molecular imaging into studies, current impediments and proposed models to broaden use and increase impact.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038382 TI - Protonation of carboxyl groups in EuDOTA-tetraamide complexes results in catalytic prototropic exchange and quenching of the CEST signal. AB - The CEST properties of EuDOTA-tetraamide complexes bearing pendant carboxylate and carboxyl ethyl esters were measured as a function of pH. The CEST signal from the Eu3+-bound water molecule decreased in intensity between pH 8.5 and 4.5 while the proton exchange rates (kex) increased over this same pH range. In comparison, the CEST signal in the corresponding carboxyl ester derivatives was nearly constant. Both observations are consistent with stepwise protonation of the four carboxylic acid groups over this same pH range. This indicates that negative charges on the carboxyl groups above pH 6 facilitate the formation of a strong hydrogen-bonding network in the coordination second sphere above the single Eu3+ bound water molecule, thereby decreasing prototropic exchange of protons on the bound water molecule with bulk water protons. The percentage of square antiprismatic versus twisted square antiprism coordination isomers also decreased as the appended carboxylic acid groups were positioned further away from the amide. The net effect of lowering the pH was an overall increase in kex and a quenching of the CEST signal.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038384 TI - Multimodal nanoparticle imaging agents: design and applications. AB - Molecular imaging, where the location of molecules or nanoscale constructs can be tracked in the body to report on disease or biochemical processes, is rapidly expanding to include combined modality or multimodal imaging. No single imaging technique can offer the optimum combination of properties (e.g. resolution, sensitivity, cost, availability). The rapid technological advances in hardware to scan patients, and software to process and fuse images, are pushing the boundaries of novel medical imaging approaches, and hand-in-hand with this is the requirement for advanced and specific multimodal imaging agents. These agents can be detected using a selection from radioisotope, magnetic resonance and optical imaging, among others. Nanoparticles offer great scope in this area as they lend themselves, via facile modification procedures, to act as multifunctional constructs. They have relevance as therapeutics and drug delivery agents that can be tracked by molecular imaging techniques with the particular development of applications in optically guided surgery and as radiosensitizers. There has been a huge amount of research work to produce nanoconstructs for imaging, and the parameters for successful clinical translation and validation of therapeutic applications are now becoming much better understood. It is an exciting time of progress for these agents as their potential is closer to being realized with translation into the clinic. The coming 5-10 years will be critical, as we will see if the predicted improvement in clinical outcomes becomes a reality. Some of the latest advances in combination modality agents are selected and the progression pathway to clinical trials analysed.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038383 TI - Biological effects of MRI contrast agents: gadolinium retention, potential mechanisms and a role for phosphorus. AB - No discussion of challenges for chemistry in molecular imaging would be complete without addressing the elephant in the room-which is that the purest of chemical compounds needs to interact with a biological system in a manner that does not perturb normal biology while still providing efficacious feedback to assist in diagnosis of disease. In the past decade, magnetic resonance imaging (MRI) agents long considered inert have produced adverse effects in certain patient populations under certain treatment regimens. More recently, inert blood pool agents have been found to deposit in the brain. Release of free metal is often suspected as the culprit but that hypothesis has yet to be validated. In addition, even innocuous agents can cause painful side effects during injection in some patients. In this brief review, we summarize known biological effects for gadolinium- and iron-based MRI contrast agents, and discuss some of the potential mechanisms for the observed biological effects, including the potential role of phosphorus imbalance, related to kidney disease or cancer, in destabilizing gadolinium-based chelates and precipitating free gadolinium.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038385 TI - Spectral unmixing techniques for optoacoustic imaging of tissue pathophysiology. AB - A key feature of optoacoustic imaging is the ability to illuminate tissue at multiple wavelengths and therefore record images with a spectral dimension. While optoacoustic images at single wavelengths reveal morphological features, in analogy to ultrasound imaging or X-ray imaging, spectral imaging concedes sensing of intrinsic chromophores and externally administered agents that can reveal physiological, cellular and subcellular functions. Nevertheless, identification of spectral moieties within images obtained at multiple wavelengths requires spectral unmixing techniques, which present a unique mathematical problem given the three-dimensional nature of the optoacoustic images. Herein we discuss progress with spectral unmixing techniques developed for multispectral optoacoustic tomography. We explain how different techniques are required for accurate sensing of intrinsic tissue chromophores such as oxygenated and deoxygenated haemoglobin versus extrinsically administered photo-absorbing agents and nanoparticles. Finally, we review recent developments that allow accurate quantification of blood oxygen saturation (sO2) by transforming and solving the sO2 estimation problem from the spatial to the spectral domain.This article is part of the themed issue 'Challenges for chemistry in molecular imaging'. PMID- 29038386 TI - Effect of Statins on Patients and Graft Survival in Kidney Transplant Recipients: a Survival Meta-analysis. AB - INTRODUCTION: Modifying cardiovascular risk factors is very important for the patients after kidney transplantation. Statins are a potentially beneficial intervention for kidney transplant patients, and the effect of statins on cardiovascular outcomes in patients with chronic kidney disease varies according to the stages. This systematic review summarizes the potential beneficial effects of statins on kidney allograft outcome. MATERIALS AND METHODS: A systematic review and meta-analysis was conducted by literature search using the PubMed, Science Direct, Scopus, ISI Web of Knowledge, and Google Scholar. Articles published after 2000 reporting hazard ratios (HRs) for the effect of statins on patient and graft survival of kidney transplant patients were included. RESULTS: Seven articles were included in the systematic review, involving 1870 kidney transplant patients that received statins and 3339 kidney transplant patients as the control group. Statins has no protective effect on transplant rejection, graft survival or patient survival after kidney transplantation. The effect of statins on graft survival, however, was significant when adjusted for factors such as age, sex, and serum creatinine level (HR, 0.80; 95% CI, 0.69 to 0.92; P = .003). Similarly, patient survival was significantly better with statin use (adjusted HR, 0.75; 95% CI, 0.63 to 0.88; P = .003). CONCLUSIONS: The present study may provide valuable information on the potential beneficial effects of statins in kidney allograft recipients. Meta-analysis showed that the use of statins correlated independently with improved patient and graft survival after kidney transplantation. PMID- 29038387 TI - Nephrotoxic Effect of Aspartame as an Artificial Sweetener: a Brief Review. AB - Aspartame is one of the most popular artificial sweeteners over the world. Although its consumption is considered to be safe in acceptable daily intake ranges which were set by the United States Food and Drugs Administration and other regulatory agencies, there are lots of controversies regarding its safety nowadays. Some of the recent experimental and epidemiological studies showed that consumption of aspartame may causes some adverse health effects including obesity, metabolic syndrome, and alteration in gut microbiota. Moreover, studies on the nephrotoxic effect of aspartame have increased. A search of several literature databases for publications on adverse effects of aspartame on the kidney function from 1980 to 2016 showed that long-term consumption of aspartame led to a dose-dependent increased production of free radicals in renal tissues as well as kidney injury, based on several studies on animals However, given the lack of clinical data in this area, it is difficult to make a definitive conclusion regarding nephrotoxic effect of aspartame. Overall, consumers should be aware of the potential side effects of aspartame and other artificial sweeteners. At present it may be recommended that only a minimal amount of them would be consumed. PMID- 29038388 TI - Uncommon Presentation of Primary Renal Lymphoma. PMID- 29038389 TI - Association of Glomerular Filtration Rate With Cardiometabolic Risk Factors in Iranian Adolescents: CASPIAN III Study. AB - INTRODUCTION: This study aimed to assess the association of glomerular filtration rate (GFR) with cardiometabolic risk factors in Iranian adolescents. MATERIALS AND METHODS: Data of the 3rd round of a school-based surveillance system entitled "Childhood and Adolescence Surveillance and PreventIon of Adult Non-communicable Disease (CASPIAN III)" study was used for this study. A sample of 367 adolescents aged between 10 and 18 years was randomly selected. Glomerular filtration rate was estimated using the original and the updated Schwartz equations. The association of GFR with anthropometric data, blood pressure, lipid profile, and blood glucose was assessed in boys and girls by age group. RESULTS: Of the participants, 50.4% were boys and 26.2% were from rural regions. In the age group of 14 to 18 years, the ratio of low- to high-density lipoprotein cholesterol was significantly lower in the girls than the boys (P < .001), and the girls had significantly higher triglyceride and FBG levels. Significant correlations were found between GFR and waist circumference (r = 0.150 and P = .009 with the original Schwartz; r = 0.190 and P < .001 with the updated Schwartz) and body mass index (r = 0.115 and P = .03 with the original Schwartz; r = 0.121 and P = .02 with the updated Schwartz). Conclusions. The above findings showed that obese and overweight Iranian adolescents were more likely to have lower kidney function. Strategies to decline impaired kidney function may include prevention of obesity and central obesity in this population. PMID- 29038390 TI - Dietary Animal-derived L-Arginine Intakes and Risk of Chronic Kidney Disease: a 6 year Follow-up of Tehran Lipid and Glucose Study. AB - INTRODUCTION: There is inconsistent evidence regarding the potential role of L arginine intake on kidney function. This study investigated the association of dietary L-arginine intake and the risk of chronic kidney disease (CKD) in adults. MATERIALS AND METHODS: We evaluated 1780 men and women participated in the Tehran Lipid and Glucose Study, followed for a median of 6.3 years. Dietary intakes of total L-arginine as well as animal- and plant-derived L-arginine were assessed using the validated semi-quantitative food frequency questionnaire, at baseline. Demographics, anthropometrics, and biochemical variables were evaluated at baseline and again after a 3-year and a 6-year follow-up. The incidence of CKD was assessed across tertiles of L-arginine and its categories using multivariable logistic regression models. RESULTS: The mean dietary intakes of total, plant derived, and animal-derived L-arginine were 4.1 +/- 1.5 g/d, 1.8 +/- 0.9 g/d, and 2.1 +/- 0.8 g/d, respectively. In the fully-adjusted logistic regression model, the highest compared to the lowest intakes of animal-derived L-arginine (2.57 g/d versus 1.05 g/d) increased the risk of CKD (relative risk, 1.54; 95% confidence interval, 1.06 to 2.14, P = .02 for trend). Animal-derived L-arginine was negatively associated with changes of estimated glomerular filtration rate and creatinine clearance rate during the follow-up. There was no significant association between total or plant-derived L-arginine intakes and the risk of CKD after 6.3 years of follow-up. CONCLUSIONS: Our findings suggested an adverse effect of higher intakes of L-arginine from animal sources that could be a dietary risk factor for development of kidney disease. PMID- 29038391 TI - Embryohistiogenesis of Vascular Tufts of Glomeruli: a Possible Hypothesis. AB - INTRODUCTION: Embryogenesis of the kidney glomeruli, especially its vascular component, has not been well documented. Glomeruli capillary tuft is surrounded and enveloped by visceral epithelial cells, which is a unique portal system that connects afferent with efferent arteriole without interaction with venular circulation. We hypothesized that the portal system embryologically has developed by extension of the intima of afferent arteriole into the stroma of glomerulus. We also hypothesized that juxtaglomeruli apparatus was developed from remnants of smooth muscle cells of the media of afferent arteriole at the anastomosing site with the Bowman capsule entrance. MATERIALS AND METHODS: We studied 5 human fetal kidneys by hematoxylin-eosin, periodic acid-Schiff, and immunoperoxidase staining techniques. RESULTS: Hematoxylin-eosin staining of fetal kidney showed presence of erythrocytes in early vesicle form of glomeruli that was confirmed by immunohistochemical staining with CD31, smooth muscle actin, and CD34 markers. These stains showed extension of extraglomerular arterioles to the glomeruli. Periodic acid-Schiff staining showed also the continuity of the basement membrane in extraglomeruli and internal glomerular vascular tufts. CONCLUSIONS: This study shows that there is a relationship between the metanephric blast cells and major vessel critical for angiogenesis. When afferent arteriole come in contact with the immature glomeruli, its intima migrates into the glomerular tuft to form intraglomerular capillary system, while its smooth muscle remains at the entrance orifice and develops juxtaglomerular apparatus cells. PMID- 29038392 TI - Urine Vancomycin Level as a Method for Drug Monitoring in Patients With Normal and Decreased Kidney Function. AB - INTRODUCTION: Therapeutic drug monitoring of vancomycin is an important issue in clinical decision-making and dosage modifying, particularly among patients in critical conditions and decreased kidney function. Urine is typically readily available in hospitalized patients and therapeutic drug monitoring in urine may be a reliable and noninvasive procedure compared to frequent blood sampling. We aimed to determine and validate the diagnostic yield of vancomycin trough level in urine. MATERIALS AND METHODS: In a prospective study, 95 patients who were treated with vancomycin for any clinical condition were enrolled in this study. Patients were divided into 2 groups according to their glomerular filtration rate (greater than 80 mL/min/1.73 m2 versus 15 mL/min/1.73 m2 to 80 mL/min/1.73 m2). Vancomycin serum trough levels and simultaneous urine trough levels were detected by high-pressure liquid chromatography. RESULTS: The mean serum and urine trough levels of vancomycin were 13.13 +/- 1.34 mg/L and 7.79 +/- 1.23 mg/L, respectively. The serum and urine trough levels had a positive linear correlation (r = 0.38, P < .001), which was also significant in patients with normal kidney function (r = 0.43, P = .001). The estimated serum concentration was equal to urine vancomycin concentration plus 5.3 mg/L. CONCLUSIONS: Urine levels of vancomycin correlate with simultaneous serum levels and may consistently predict serum levels in patients with normal kidney function. Therefore, urine vancomycin monitoring might be used as a noninvasive alternative to blood sampling, particularly in patients with normal kidney function. PMID- 29038393 TI - Association of Body Mass Index, Waist Circumference, and Waist-Stature Ratio With Urine Composition in Patients With Urolithiasis. AB - INTRODUCTION: This study was aimed to evaluate the correlation of body mass index (BMI), waist circumference (WC), and waist-stature ratio (WSR) with urinary composition in urolithiasis patients. MATERIALS AND METHODS: Medical reports of 1410 urolithiasis patients referred to a tertiary in Tehran, from 2010 to 2015, were reviewed. Collected data included WC, BMI, and WSR, 24-hour urine composition, and the first-morning urine pH. Urinary relative supersaturation of calcium oxalate, calcium phosphate, and uric acid were calculated. Linear correlation and logistic regression models were used for study analyses. RESULTS: A total of 511 records were reviewed. In the women, supersaturation of calcium oxalate significantly correlated with BMI, WC, and WSR. Supersaturation of uric acid significantly correlated with WC. Using regression analyses, BMI and WSR were associated with greater supersaturation of calcium oxalate abnormality, which persisted after adjustment for confounding factors (odds ratio, 1.080; 95% confidence interval, 1.001 to 1.166 for BMI; odds ratio, 1.053; 95% confidence interval, 1.001 to 1.108 for WSR). Larger WC accompanied abnormal values for supersaturation of calcium oxalate; however, the model was marginally significant (odds ratio, 1.032; 95% confidence interval, 1.000 to 1.065; P = .05) in multivariable analysis. In the men on the other hand, none of the obesity indexes were associated with the supersaturation measures. CONCLUSIONS: Although both obesity and abdominal obesity correlated with supersaturation of calcium oxalate, mostly by changes in urine volume and pH in women, none of those indexes showed significant correlation with urine composition in the men population of our study. PMID- 29038394 TI - Factors Associated With Lumbar and Femoral Bone Mineral Density in Kidney Transplants Candidates. AB - INTRODUCTION: Data on risk factors associated with low bone mineral density are limited in patients with end-stage renal disease. This study evaluated the factors deemed associated with lumbar and femoral Z and T scores. MATERIALS AND METHODS: Clinical and demographic data of 98 patients waiting for kidney transplantation were collected, as well as lumbar and femoral bone densitometries, before transplantation. Osteoporosis and osteopenia and factors associated with bone mineral density were assessed. RESULTS: According to the femoral T score, 38.8% (95% confidence interval [CI], 29.1% to 48.4%), 44.9% (95% CI, 35.1% to 54.7%), and 16.3% (95% CI, 9.0% to 23.6%) of the patients had normal bone density, osteopenia, and osteoporosis, respectively. According to the lumbar T score, 54.1% (95% CI, 44.2% to 63.9%), 33.7% (95% CI, 24.3% to 44.0%), and 12.2% (95% CI, 5.8% to 18.7%) of the patients had normal density, osteopenia, and osteoporosis, respectively. Age, serum levels of creatinine and parathyroid hormone, and use of calcitriol and calcium carbonate were associated with femoral densitometry scores. Serum total protein level, Rh-negative status, and B blood type were associated with the lumbar scores. CONCLUSIONS: Parathyroid hormone contributed to bone loss in our kidney transplant candidates, and B and Rh negative blood types were associated with a higher risk of lumbar osteoporosis while total protein was negatively associated with the risk of bone loss. Calcitriol might improve femoral mineral density, but calcium carbonate was negatively associated with femoral bone density. Age and higher creatinine levels were associated with higher femoral bone densities. PMID- 29038395 TI - Acute Interstitial Nephritis Induced by Citrullus Colocynthis. AB - Acute interstitial nephritis (AIN) is known as a common cause of acute kidney injury, found in 15% to 27% of kidney biopsies. Drug-induced AIN is currently the most common cause of AIN. The most common medications causing AIN are antibiotics and nonsteroidal anti-inflammatory drugs. We describe a case of Citrullus colocynthis (herbal remedy for diabetes mellitus and weight reduction) that induced AIN. A 31-year-old woman with major thalassemia, diabetes mellitus, and hepatitis C infection was admitted because of flank pain and unexpected increase in serum creatinine level. She had been using Citrullus colocynthis for 3 months. Kidney biopsy results suggested AIN. She did not respond to steroid therapy and underwent hemodialysis. We suggest the use of Citrullus colocynthis as a herbal medicine with extreme caution. PMID- 29038396 TI - Multiple Myeloma in a Patient With Familial Mediterranean Fever. AB - Familial Mediterranean fever (FMF) is an autosomal recessive disease characterized by recurrent episodes of painful inflammation in the abdomen, chest, or joints. The coexistence of multiple myeloma (MM) and FMF is an extremely rare event. Here, we report a case of FMF with concurrent MM. A 63-year old woman was diagnosed with FMF since 15 years earlier. She was admitted with a complaint of low back pain. Regarding the presence of back pain, anemia, hypercalcemia, and kidney failure, a diagnosis of MM was suspected. A skeletal survey showed punched-out lesions in the skull. Serum protein electrophoresis demonstrated an immunoglobulin G kappa monoclonal gammopathy, and bone marrow aspiration revealed 30% involvement by abnormally appearing plasma cells, suggestive of MM. Although the association between FMF and MM may be a mere coincidence, further studies are necessary to understand their concurrent development. PMID- 29038397 TI - Errata. PMID- 29038398 TI - Notice of Inadvertent Duplicate Publication and Retraction. PMID- 29038400 TI - [Surgical Treatment of T3 Lung Cancer with Invasion of Chest Wall and Other Adjacent Organs]. AB - We conducted a retrospective investigation in patients who underwent surgery for T3 lung cancer with invasion of chest wall and other adjacent organs. Fifty patients who underwent surgery for T3 lung cancer with invasion of adjacent organs were investigated. The chest wall was the most frequently invaded organ, followed by the pericardium and mediastinal pleura. In cases of chest wall invasion, patients underwent en bloc resection and, when a complete resection was judged feasible, extrapleural resection. Six patients with superior sulcus tumor underwent surgery after preoperative treatment. The 5-year-survival was 55.7%. A significant difference in 5-year survival was observed between complete resection and incomplete resection in patients with lung cancer with chest wall invasion( p<0.047). PMID- 29038399 TI - [Surgical Resection for Locally Advanced Lung Cancer]. AB - Lung cancer invading neighboring anatomical structures is categorized as T3 or T4 and is regarded as locally advanced lung cancer. The 8th Edition Lung Cancer Stage Classification reclassified tumors 5~7 cm in size as T3 and tumors >7 cm or invading the diaphragm as T4. The purpose of this study was to evaluate the treatment results for resectable cT3-4N0-1M0 non-small cell lung cancer. From 1985 to 2016, 138 patients were surgically treated in our hospital, and their median follow-up was 78 months. Overall, the 5-year survival was 50%. According to the cT factor, the 5-year survival was 60% in patients with 5~7 cm tumors, 35% in patients with >7 cm tumors, and 58% in the group with chest wall invasion;however, no patients with tumors invading the diaphragm, pericardium or great vessels survived 5 years postoperatively. Preoperative chemotherapy was given to 16 patients( 12%), and 6 of those patients received chemoradiotherapy;40 patients (29%) received postoperative chemotherapy. All patients who received preoperative chemoradiotherapy followed by surgery had a complete resection and good pathological effects. While surgery alone is associated with an insufficient prognosis in patients with T3-T4 lung cancer, the addition of preoperative treatment is promising for improving survival. PMID- 29038401 TI - [Surgical Resection of T4 Category Lung Cancer]. AB - Surgery still remains the main stream in the multimodality treatment for locally advanced lung cancer. On the other hand, more than 50% of non-small cell lung cancer are excluded for surgical indications, especially T4 category of lung cancer. In this study, we showed 5 year overall survival rate of both 50 clinical T4 cases and 30 pathological T4 cases are 35.6% and 41.9% respectively. Those could be compared with the non-surgical treatment results in the literature. Through this study and analysis of other reports, we might consider surgical indications for T4 category lung cancer are as follows;invasion to mediastinum, spine, trachea, carina and additional nodules in ipsilateral different lobes with N0-1 status(esophagus is not included in this study). For obtaining R0 resection to improve survival and reducing postoperative morbidity and mortality rate, prudent evaluations for patients' selection including pre-operative staging before surgery are mandatory. PMID- 29038402 TI - [Complete Surgical Resection for Lung Cancer Invading Anterior Apex after Preoperative Chemoradiotherapy Via Transmanubrial Approach and Anterolateral Thoracotomy]. AB - Surgical resection plays an important role as a radical treatment for lung cancers. Many lung cancer patients are found in an advanced state and it is currently in a condition that can not be operated, and the prognosis is also bad. For locally advanced lung cancer, complete resection including surrounding organs is expected by performing chemoradiotherapy before surgery. We report a case of complete surgical resection for lung cancer invading anterior apex after preoperative chemoradiotherapy via transmanubrial approach and anterolateral thoracotomy. PMID- 29038403 TI - [Salvage Surgery for Residual and Recurred Tumor after Definitive Chemoradiotherapy]. AB - BACKGROUND: Standard treatment for clinical N2-locally advanced lung cancer is definitive chemoradiotherapy (CRT). For local recurrence or residual tumor after definitive CRT, salvage surgery may have effective treatment option with relatively high operative risk. OBJECTIVE: To examine the prognosis and risk of salvage surgery. METHOD: In 2001 to 2016, postoperative complications, overall survival and relapse free survival rate were examined in 17 patients who underwent salvage surgery after definitive CRT for clinical N2 or more primary lung cancer. RESULT: Median observation period 26.4 months, male 15 female 2, average age 58.6 years. This was 0.6% of 2,630 anatomical resections during this period. Average dose of radiation was 63.5 Gy. Median period from initial treatment to surgery was 16.0 months.15 lobectomy and 2 pneumonectomy. Average operation time was 289 minutes;blood loss was 271 ml. Bronchial stump coverage was performed in all cases, using 10 pericardial fat, 5 omentum, 2 intercostal muscle. Median of postoperative hospital days was 10. There was no perioperative and in-hospital death, but complications occurred in 6 cases (35.3 %). For a prolonged air leakage and 2 anastomotic fistula, 3 reoperations were needed( 17.6%). 5-year overall survival rate was 80.7%, and 5-year relapse free survival rate was 51.0%. CONCLUSION: Salvage surgery for clinical N2 lung cancer has a high frequency of postoperative complications and becomes a patient's burden. Salvage surgery seems to be meaningful, but physicians should have sufficient knowledge and experience in conducting this treatment approach. PMID- 29038404 TI - [Treatment Policy for Avoiding Pneumonectomy Regarding the Locally Advanced Lung Cancers]. AB - The problem of pneumonectomy may result from an elimination of the extensive pulmonary vascular bed as a unit. Therefore this paper has indicated that 10 cases with the locally advanced lung cancers had been treated with some parenchymal sparing procedures including chemotherapy in order to avoid pneumonectomy. Six cases with preoperative chemotherapy were performed sleeve lobectomy in 3 cases, tangential pulmonary artery(PA) resection in 2, and left atrium partial resection in 1. One case with irradiation in vain was done sleeve LLL+lS4+5segmentectomy. Three cases without pre-treatment were done tangential PA resection in 2 cases, sleeve lobectomy in 1. Outcome was that there were no perioperative mortality and 7 cases achieved long-term survival, however, 2 cases died of relapse, and one died of pneumonia. On surgical technique U-shape mattress interrupted suture for bronchoplasty and tangential PA resection were proved very useful procedures. PMID- 29038405 TI - [Our Experiences of Vertebrectomy for Lung Cancer Invading the Spine]. AB - BACKGROUND: Surgery for lung cancer invading the spine remains challenging associated with high morbidity and mortality. We describe our surgical approach and assess the outcome of surgical treatment lung cancer invading the spine. METHODS: We retrospectively reviewed our recent experiences of lung cancer with vertebral invasion, in which we have performed total or partial vertebrectomy from 2011 through 2015. RESULTS: We experienced 8 patients who were treated with partial or total vertebrectomy for lung cancer. Vertebral invasion was evaluated by chest computed tomography (CT) and magnetic resonance imaging findings. N factors were estimated as cN0 in all patients based on chest CT and PET-CT findings. Two patients were treated by preoperative induction therapy. Total vertebrectomy was performed in 2 patients, hemivertebrectomy in 2 patients and transverse-process resection in 4 patients. In all 8 cases, complete resection was performed. Morbidity was 75% (6 patients) and no mortality occurred. Overall survival rate( 5 years) was 75%. CONCLUSION: Lung cancer surgery combined with vertebrectomy is highly aggressive suegery associated with high morbidity, however, this procedure is a promising treatment option for selected lung cancer patients, such as N0M0 disease with invasion to the spine. PMID- 29038406 TI - [Results of Partial Atrial Resection in Advanced Lung Cancer]. AB - The present study analyzed double centers experiences with extended combined resection of the left atrium in patients with lung cancer. From January 1972 to May 2017, 32 patients underwent lung resection with partial resection of the left atrium for lung cancer. Of them,( median age 62 years, range 40 to 79 years), 25 were men (78%) and 7 were women. Twenty-three pneumonectomies (72%)were performed, of which 19 (59%) were right sided. Dissection of the interatrial groove was completed in 4 patients( 36.3%). Extracorporeal circulation system was used in 4 patients( 12%). Pathological analysis of resected lymph nodes identified 6 patients (19%) with N0, 13 patients with N1 (40%) and 13 patients with N2( 40%). There were 17 squamous cell carcinomas( 53%), 8 adenocarcinomas( 25%), 3 pleomorphic carcinomas, 1 large cell carcinoma, 1 mucoepidermoid carcinoma, adenosquamous cell carcinoma and 1 combined small cell carcinoma and adenocarcinoma. Two patients underwent induction chemotherapy and 26 patients( 81.2%) underwent adjuvant treatment. With a median follow-up of 21.8 months (0~120), the 3 and 5-year survival rate after the surgical resection was 13.7% and 23.8 %. Since January 2000, 11 patients were operated, 3 and 5-year survival rate was 50.0 and 36.3%. Histological N0-1 was associated with better median overall survival(OS) compared with N2, with a corresponding 5-year OS rate of 18.9 and 7.7%, respectively. PMID- 29038407 TI - [Technique to Reinforce Double-barreled Distal Aortic Anastomosis in the Repair of Aortic Dissection]. AB - We describe a technique to reinforce a double-barreled aortic anastomosis in the repair of chronic aortic dissection. After distal aortic resection was carried out, an intimal flap was incised lineally 1 cm in width along with its margin. This intimal band was reapproximated to the adventitia which supported the false lumen. The wedge-shaped excision was made on the residual intimal flap to maintain blood flow to both the true and false lumens. Two felt strips were circumferentially placed inside and outside of the aortic edge, and the layers were sandwiched together with monofilament sutures. Finally, the prosthetic graft was anastomosed to the reinforced aortic stump with continuous suture. If the length of the intimal edge was shorter than that of the dissected adventitia, the intima was incised in a long, triangular shape from its base to form 2 ligulate flaps. The flaps were then slid together and attached to the corresponding adventitia, and the aortic stump was reinforced using the sandwich technique. This technique may be an effective and safe method for reinforcement of a double barreled aortic anastomosis in the repair of chronic aortic dissection. PMID- 29038408 TI - [Aortitis Syndrome Requiring Redo Bentall Procedure with Coronary Artery Bypass Grafting due to Graft Detachment;Report of a Case]. AB - A 53-year-old woman was referred to us for reoperation of aortic root. Twenty three years ago, she was diagnosed with aortitis and suffered from annuloaortic ectasia, aortic regurgitation, severe stenosis of left carotid and subclavian arteries and occulusion of the main trunk of left coronary artery. The left coronary system was perfused by collateral arteries from right coronary artery. She had undergone original Bentall procedure( Cooley graft 26 mm+SJM valve 25 mm) with coronary artery bypass grafting (CABG)[saphenous vein graft (SVG)-left anterior descending artery (LAD)]. When she was 52 years old, she suffered from angina on efforts. Computed tomography and catheter angiocardiogram revealed pseudoaneurysm formation due to detachment of right coronary artery button and occulusion of SVG. We underwent redo aortic root replacement (Hemashield graft 26 mm+On-X valve 23 mm) with redo CABG (SVG-LAD). Eight mm graft was interposed between composite valve graft and right coronary button. Postoperative course was uneventful. She was discharged from the hospital on the 17th day, and is now doing well without any symptoms. PMID- 29038410 TI - [Vacuum-assisted Closure for Mediastinitis Caused by Methicillin-resistant Staphylococcus aureus after Coronary Artery Bypass Grafting;Report of a Case]. AB - A 78-year-old man underwent off-pump coronary artery bypass grafting in our hospital. Purulent discharge from a sternotomy wound appeared 8 days after the operation of sternal re-fixation for sternal fracture. Methicillin-resistant Staphylococcus aureus(MRSA) was identified by the culture of the wound exudate. He underwent a surgical revision with the removal of the sternal wires and necrotic tissues. After sufficient irrigation, vacuum-assisted closure therapy was adopted and finally the wound was naturally healed. Vacuum-assisted closure therapy was an effective treatment for MRSA mediastinitis after coronary artery bypass grafting. PMID- 29038409 TI - [Total Arch Replacement for Distal Arch Aneurysm with Isolated Left Vertebral Artery;Report of a Case]. AB - We herein present a case of distal aortic arch aneurysm with an isolated left vertebral artery(LVA). In surgery, after establishing cardiopulmonary bypass, the LVA was anastomosed to the left common carotid artery (LCCA) while under moderate hypothermia. Selective cerebral perfusion (SCP) was then initiated by inserting catheters into the brachiocephalic artery( BCA), the LCCA and the left subclavian artery (LSA). The aorta was transected between the BCA and the LCCA, and an open stent graft was deployed into the descending aorta during circulatory arrest. After reconstructing the LSA, LCCA and BCA, the ascending aorta was replaced with a graft. The patient recovered well without any cerebral complications, and computed tomography confirmed the patency of the reconstructed LVA. Regarding the surgical treatment of an aortic arch aneurysm with an isolated LVA, reconstructing the isolated LVA before SCP makes the establishment of SCP straightforward, thereby helping protect the brain from ischemia. PMID- 29038411 TI - [Emergent Thoracic Endovascular Aortic Repair and Subxiphoid Pericardiotomy for Retrograde Type A Acute Aortic Dissection with Cardiac Tamponade;Report of a Case]. AB - Type A acute aortic dissection has a high rate of mortality. Emergent surgical repair is the gold standard treatment, but some patients cannot tolerate the open surgery. Here, we report an 82-year-old patient with a history of cerebral infarction and cerebral bleeding who presented with a depressed level of consciousness and who was in a state of shock. A computed tomography (CT) scan showed cardiac tamponade associated with retrograde type A aortic dissection(RAAD), with a primary entry tear at a distal site of the left subclavian artery. We therefore performed emergent primary entry closure with stent grafting using the Conformable Gore Tag device and emergent drainage of the cardiac tamponade with subxiphoid pericardiotomy. Postoperative CT scan showed complete closure of the primary entry tear and a completely thrombosed false lumen. Primary entry closure with stent grafting could be an effective option for RAAD that meets anatomical criteria. PMID- 29038413 TI - Percutaneous Coronary Intervention for Coronary Bifurcation Lesions. AB - Percutaneous coronary intervention (PCI) of lesions at coronary bifurcations poses a technical challenge. Short-term complications, including periprocedural myocardial infarction, and long-term complications such as in-stent restenosis and stent thrombosis, are higher in patients with bifurcation lesions. Techniques for PCI of bifurcation lesions include stenting of the main branch alone, and the use of two or more stents to cover the main and side branches. Two- or three stent techniques include T-stenting, crush, culotte, simultaneous kissing stents, V-stenting, and Y-stenting. The goal of these techniques is to minimize areas of vessel that are not covered by stent. Dedicated bifurcation stents exist, including stents with apertures that allow standard stents to be placed within the aperture. Simultaneous kissing balloon angioplasty in the two branches should be performed to optimize angiographic results. Many studies exist comparing the different techniques; however, no consensus exists on the preferred method. PMID- 29038412 TI - [Effects of High-frequency Jet Ventilation on Respiratory Failure after Total Arch Replacement Due to Acute Aortic Dissection with Morbid Obesity;Report of a Case]. AB - A 55-year-old morbidly obese woman [body mass index (BMI) 51.2] developed acute type A aortic dissection, and she also presented with significant hypoxemia and hypercapnia. She underwent a successful emergency total arch replacement, but severe hypoxemia persisted and Pao2/Fio2 lowered to 71.9 mmHg. We therefore applied high frequency jet ventilation (HFJV), which soon improved the hypoxemia without hemodynamic compromise. HFJV was discontinued three days later, when her Pao2/Fio2 improved to 170.0 mmHg. Weaning from the respirator was initiated on postoperative day 13. The patient was extubated on postoperative day 19 and was discharged on postoperative day 74 free from disabilities. HFJV may be effective for severe hypoxemia after cardiovascular surgery. PMID- 29038414 TI - Timing of Percutaneous Coronary Intervention and Therapeutic Hypothermia in Patients With ST-Elevation Myocardial Infarction and Out-of-hospital Cardiac Arrest. AB - The American College of Cardiology/American Heart Association guidelines include a Class 1 recommendation to initiate therapeutic hypothermia (TH) in comatose patients with out-of-hospital cardiac arrest (OHCA) with an initial shockable rhythm who have achieved return of spontaneous circulation. There is also a Class 1 recommendation for immediate angiography in these patients whose initial electrocardiography shows ST-elevation myocardial infarction (STEMI). However, due to a lack of clinical trials evaluating these patients who have received both percutaneous coronary intervention (PCI) and TH, controversy remains regarding whether the two can be safely combined. Furthermore, in patients who receive TH and PCI, another question to address is which therapy to initiate first. This article focuses on how best to manage comatose OHCA survivors who have an initial shockable rhythm and STEMI. PMID- 29038415 TI - Two Perspectives of the Appropriate Use Criteria in Cardiology Practice: Advantageous and Useful or Limiting and Harmful? AB - The appropriate use criteria (AUC) has become an integral part of the cardiologist's daily practice and have evolved greatly since their inception over a decade ago. However, as health care costs continue to rise, the AUC has come to play an even more pivotal role in the way medicine-specifically cardiology-is practiced today. This editorial describes two opposing viewpoints commonly held by practicing clinicians of the AUC. Written from the perspective of two fellows in-training looking ahead at the challenges and opportunities of clinical practice (under the auspices of several experienced clinicians and leaders of the American College of Cardiology), this article provides a fresh perspective on the impact AUC has on our patients, clinicians, and the health care system. PMID- 29038416 TI - Cardiac Metastasis of Nonvisceral Soft-tissue Leiomyosarcoma. AB - Metastasis of a nonvisceral leiomyosarcoma to the heart is rare. We present the case of a man with a history of an upper extremity cancerous lesion that was completely resected with appropriate surveillance monitoring, which then metastasized to the heart 14 years later, presenting as superior vena cava syndrome. Full evaluation found no other metastatic lesions, including no residual sarcoma at the former primary site. We include transthoracic echocardiography and computed tomography images of unusual presentation of the large mass extending from the caudal superior vena cava to the right atrium and into the right ventricle across the tricuspid valve. PMID- 29038417 TI - Role of Exogenous Phosphocreatine in Chemotherapy-induced Cardiomyopathy. AB - The 5-fluorouracil, doxorubicin, and cyclophosphamide (FAC) regimen is widely used in the management of breast cancer. The common cardiotoxic effects of doxorubicin include congestive heart failure and left ventricular dysfunction, and those of cyclophosphamide include pericarditis, myocarditis, and congestive heart failure. It has been postulated that cardiotoxicity of 5-fluorouracil presents as coronary artery diseases (eg, angina). Cardiomyopathy is a common outcome following treatment with the FAC regimen. We report on a 52-year-old woman with cardiomyopathy following chemotherapy and radiation therapy. The patient did not respond well to b-blockers and angiotensin-converting enzyme inhibitors. After the addition of exogenous phosphocreatine, the patient's cardiac condition improved significantly. PMID- 29038418 TI - Two Reports of Quadricuspid Aortic Valve With Aortic Insufficiency. AB - We report two cases of a quadricuspid aortic valve with severe aortic incompetence. Both patients presented with dyspnea on exertion. Their physical examinations demonstrated wide pulse pressures with diastolic murmurs. Bedside transthoracic Doppler echocardiography revealed preserved left ventricular systolic function and possible quadricuspid aortic valve with severe aortic incompetence in both patients. We proceeded with transesophageal echocardiography that confirmed a quadricuspid aortic valve with severe aortic incompetence in both patients. Left ventricular systolic function was preserved in both cases. Both patients had a preoperative cardiac catheterization, which showed normal coronary arteries. They were referred to cardiothoracic surgery and underwent successful aortic valve replacement with bioprosthetic valves. PMID- 29038419 TI - Expression and Clinical Significance of Tissue Inhibitor of Metalloproteinases-1 (TIMP-1) and a Disintegrin and Metalloproteinase with Thrombospondin Type 1 Motif 1 (ADAMTS1) in Post-Kidney-Transplant Bladder Tumors. AB - BACKGROUND To investigate the expression and clinical significance of tissue inhibitor of metalloproteinases-1 (TIMP-1) and a disintegrin and metalloproteinase with thrombospondin type 1 motif 1 (ADAMTS1) in post-kidney transplant bladder tumors. MATERIAL AND METHODS A total of 27 patients with new bladder tumors occurring after surgical kidney transplants (the experimental group) and 56 patients with conventional new bladder tumors (the control group) were included in this study. All the patients were confirmed to have transitional cell carcinomas by postoperative pathological examination. Fifteen pairs of new bladder tumor specimens (from each of the 2 groups) were selected and subjected to whole-genome oligonucleotide microarray screening to determine the differences in gene expression profiles and analysis using the biomolecule annotation system. Subsequently, quantitative real-time polymerase chain reaction (qRT-PCR), immunohistochemistry, and Western blot analysis were performed to determine and compare differences in the expression of TIMP-l and ADAMTS1 in the urothelial tumors of the 2 groups. RESULTS Analysis of co-differentially expressed genes showed 23 groups of pathways with significant differences (P<0.05) and included immunosuppression and tumor development and progression. TIMP-l expression was significantly higher in the experimental group than in the control group, whereas ADAMTS1 expression was significantly lower in the experimental group than in the control group (P<0.05). CONCLUSIONS Significant differences in gene expression profiles were observed between patients with post-kidney transplant bladder tumors and those with conventional bladder tumors, and the expression of TIMP-1 and ADAMTS1 has important significance for the diagnosis of post-kidney transplant bladder tumors. PMID- 29038420 TI - Effects of Different Training Loads on Emotional State and mRNA and Protein Expressions of N-Methyl-D-Aspartate Receptor Subunits, Postsynaptic Density 95, and Kinesin Family Member 17 in Hippocampus of Rats. AB - BACKGROUND Emotional state can be affected by different training loads. The aim of this study was to explore the changes of rat emotional state, as well as the mRNA and protein expressions of N-methyl-D-aspartate receptors (NMDARs), postsynaptic density 95 (PSD-95), and kinesin family member 17 (KIF-17) in the hippocampus, by long-term moderate-intensity and high-intensity training models in rats. MATERIAL AND METHODS The exercise model of SD rats was set up by treadmill running of moderate and high intensities for 4 weeks. The rats in the moderate-intensity training group were given endurance training with increasing intensity, while rats in the high-intensity training group were given high-speed training, and those in the normal control group were also established. The body weights of rats were measured before and after exercise to determine weight reduction. Real-time PCR and Western blotting were used to detect the mRNA and protein expressions of NMDARs, PSD-95, and KIF-17 in hippocampus of rats under different training loads. RESULTS Compared with the control group, the rats in the moderate-intensity training group had better body condition and emotional state, while the rats in the high-intensity training group had poor body condition and emotional state. The mRNA and protein expression of PSD-95, KIF-17, and NMDARs in the moderate-intensity training group were significantly elevated (P<0.05) while those in the high-intensity training group were suppressed (P<0.05). CONCLUSIONS Different training loads have remarkable influences on the cognition, emotion, and mental status of rats, and can affect the mRNA and protein expressions of NMDARs, PSD-95, and KIF-17 in rats. Appropriate training loads alleviate hypoxia damage to the hippocampus, and also effectively improve hippocampus function. PMID- 29038421 TI - Stabilization of phosphofructokinase 1 platelet isoform by AKT promotes tumorigenesis. AB - Phosphofructokinase 1 (PFK1) plays a critical role in glycolysis; however, its role and regulation in tumorigenesis are not well understood. Here, we demonstrate that PFK1 platelet isoform (PFKP) is the predominant PFK1 isoform in human glioblastoma cells and its expression correlates with total PFK activity. We show that PFKP is overexpressed in human glioblastoma specimens due to an increased stability, which is induced by AKT activation resulting from phosphatase and tensin homologue (PTEN) loss and EGFR-dependent PI3K activation. AKT binds to and phosphorylates PFKP at S386, and this phosphorylation inhibits the binding of TRIM21 E3 ligase to PFKP and the subsequent TRIM21-mediated polyubiquitylation and degradation of PFKP. PFKP S386 phosphorylation increases PFKP expression and promotes aerobic glycolysis, cell proliferation, and brain tumor growth. In addition, S386 phosphorylation in human glioblastoma specimens positively correlates with PFKP expression, AKT S473 phosphorylation, and poor prognosis. These findings underscore the potential role and regulation of PFKP in human glioblastoma development.Phosphofructokinase 1 (PFK1) plays a critical role in glycolysis. Here the authors show that PFK1 platelet isoform is upregulated in Glioblastoma and is required for tumor growth mechanistically, such upregulation is due to an increased stability induced by AKT activation via phosphorylation on residue S386. PMID- 29038422 TI - TRIM29 promotes DNA virus infections by inhibiting innate immune response. AB - Many double-stranded DNA viruses, such as Epstein-Barr virus, can establish persistent infection, but the underlying virus-host interactions remain poorly understood. Here we report that in human airway epithelial cells Epstein-Barr virus induces TRIM29, a member of the TRIM family of proteins, to inhibit innate immune activation. Knockdown of TRIM29 in airway epithelial cells enhances type I interferon production, and in human nasopharyngeal carcinoma cells results in almost complete Epstein-Barr virus clearance. TRIM29 is also highly induced by cytosolic double-stranded DNA in myeloid dendritic cells. TRIM29 -/- mice have lower adenovirus titers in the lung, and are resistant to lethal herpes simplex virus-1 infection due to enhanced production of type I interferon. Mechanistically, TRIM29 induces K48-linked ubiquitination of Stimulator of interferon genes, a key adaptor in double-stranded DNA-sensing pathway, followed by its rapid degradation. These data demonstrate that Epstein-Barr virus and possible other double-stranded DNA viruses use TRIM29 to suppress local innate immunity, leading to the persistence of DNA virus infections.Proteins of the TRIM family have regulatory functions in immune signaling, often via ubiquitination of target proteins. Here, the authors show that TRIM29 is induced upon infection with DNA viruses, resulting in degradation of STING, decreased interferon signaling and increased pathogenicity in mice. PMID- 29038423 TI - Regulation of T cell alloimmunity by PI3Kgamma and PI3Kdelta. AB - Phosphatidylinositol-3-kinases (PI3K) gamma and delta are preferentially enriched in leukocytes, and defects in these signaling pathways have been shown to impair T cell activation. The effects of PI3Kgamma and PI3Kdelta on alloimmunity remain underexplored. Here, we show that both PI3Kgamma -/- and PI3Kdelta D910A/D910A mice receiving heart allografts have suppression of alloreactive T effector cells and delayed acute rejection. However, PI3Kdelta mutation also dampens regulatory T cells (Treg). After treatment with low dose CTLA4-Ig, PI3Kgamma -/- , but not PI3Kappadelta D910A/D910A , recipients exhibit indefinite prolongation of heart allograft survival. PI3Kdelta D910A/D910A Tregs have increased apoptosis and impaired survival. Selective inhibition of PI3Kgamma and PI3Kdelta (using PI3Kdelta and dual PI3Kgammadelta chemical inhibitors) shows that PI3Kgamma inhibition compensates for the negative effect of PI3Kdelta inhibition on long term allograft survival. These data serve as a basis for future PI3K-based immune therapies for transplantation.Phosphatidylinositol-3-kinases (PI3K) gamma and delta are key regulators of T cell signaling. Here the author show, using mouse heart allograft transplantation models, that PI3Kgamma or PI3Kdelta deficiency prolongs graft survival, but selective inhibition of PI3Kgamma or PI3Kdelta reveals alternative transplant survival outcomes post CTLA4-Ig treatment. PMID- 29038424 TI - Frequency-dependent selection in vaccine-associated pneumococcal population dynamics. AB - Many bacterial species are composed of multiple lineages distinguished by extensive variation in gene content. These often cocirculate in the same habitat, but the evolutionary and ecological processes that shape these complex populations are poorly understood. Addressing these questions is particularly important for Streptococcus pneumoniae, a nasopharyngeal commensal and respiratory pathogen, because the changes in population structure associated with the recent introduction of partial-coverage vaccines have substantially reduced pneumococcal disease. Here we show that pneumococcal lineages from multiple populations each have a distinct combination of intermediate-frequency genes. Functional analysis suggested that these loci may be subject to negative frequency-dependent selection (NFDS) through interactions with other bacteria, hosts or mobile elements. Correspondingly, these genes had similar frequencies in four populations with dissimilar lineage compositions. These frequencies were maintained following substantial alterations in lineage prevalences once vaccination programmes began. Fitting a multilocus NFDS model of post-vaccine population dynamics to three genomic datasets using Approximate Bayesian Computation generated reproducible estimates of the influence of NFDS on pneumococcal evolution, the strength of which varied between loci. Simulations replicated the stable frequency of lineages unperturbed by vaccination, patterns of serotype switching and clonal replacement. This framework highlights how bacterial ecology affects the impact of clinical interventions. PMID- 29038425 TI - MRE11 and EXO1 nucleases degrade reversed forks and elicit MUS81-dependent fork rescue in BRCA2-deficient cells. AB - The breast cancer susceptibility proteins BRCA1 and BRCA2 have emerged as key stabilizing factors for the maintenance of replication fork integrity following replication stress. In their absence, stalled replication forks are extensively degraded by the MRE11 nuclease, leading to chemotherapeutic sensitivity. Here we report that BRCA proteins prevent nucleolytic degradation by protecting replication forks that have undergone fork reversal upon drug treatment. The unprotected regressed arms of reversed forks are the entry point for MRE11 in BRCA-deficient cells. The CtIP protein initiates MRE11-dependent degradation, which is extended by the EXO1 nuclease. Next, we show that the initial limited resection of the regressed arms establishes the substrate for MUS81 in BRCA2 deficient cells. In turn, MUS81 cleavage of regressed forks with a ssDNA tail promotes POLD3-dependent fork rescue. We propose that targeting this pathway may represent a new strategy to modulate BRCA2-deficient cancer cell response to chemotherapeutics that cause fork degradation.BRCA proteins have emerged as key stabilizing factors for the maintenance of replication forks following replication stress. Here the authors describe how reversed replication forks are degraded in the absence of BRCA2, and a MUS81 and POLD3-dependent mechanism of rescue following the withdrawal of genotoxic agent. PMID- 29038426 TI - Identification of catalytic sites in cobalt-nitrogen-carbon materials for the oxygen reduction reaction. AB - Single-atom catalysts with full utilization of metal centers can bridge the gap between molecular and solid-state catalysis. Metal-nitrogen-carbon materials prepared via pyrolysis are promising single-atom catalysts but often also comprise metallic particles. Here, we pyrolytically synthesize a Co-N-C material only comprising atomically dispersed cobalt ions and identify with X-ray absorption spectroscopy, magnetic susceptibility measurements and density functional theory the structure and electronic state of three porphyrinic moieties, CoN4C12, CoN3C10,porp and CoN2C5. The O2 electro-reduction and operando X-ray absorption response are measured in acidic medium on Co-N-C and compared to those of a Fe-N-C catalyst prepared similarly. We show that cobalt moieties are unmodified from 0.0 to 1.0 V versus a reversible hydrogen electrode, while Fe based moieties experience structural and electronic-state changes. On the basis of density functional theory analysis and established relationships between redox potential and O2-adsorption strength, we conclude that cobalt-based moieties bind O2 too weakly for efficient O2 reduction.Nitrogen-doped carbon materials with atomically dispersed iron or cobalt are promising for catalytic use. Here, the authors show that cobalt moieties have a higher redox potential, bind oxygen more weakly and are less active toward oxygen reduction than their iron counterpart, despite similar coordination. PMID- 29038427 TI - Improved electrochemical properties of morphology-controlled titania/titanate nanostructures prepared by in-situ hydrothermal surface modification of self source Ti substrate for high-performance supercapacitors. AB - ABSTARCT: Ti substrate surface is modified into two-dimensional (2D) TiO2 nanoplatelet or one-dimensional (1D) nanorod/nanofiber (or a mixture of both) structure in a controlled manner via a simple KOH-based hydrothermal technique. Depending on the KOH concentration, different types of TiO2 nanostructures (2D platelets, 1D nanorods/nanofibers and a 2D+1D mixed sample) are fabricated directly onto the Ti substrate surface. The novelty of this technique is the in situ modification of the self-source Ti surface into titania nanostructures, and its direct use as the electrochemical microelectrode without any modifications. This leads to considerable improvement in the interfacial properties between metallic Ti and semiconducting TiO2. Since interfacial states/defects have profound effect on charge transport properties of electronic/electrochemical devices, therefore this near-defect-free interfacial property of Ti-TiO2 microelectrode has shown high supercapacitive performances for superior charge storage devices. Additionally, by hydrothermally tuning the morphology of titania nanostructures, the electrochemical properties of the electrodes are also tuned. A Ti-TiO2 electrode comprising of a mixture of 2D-platelet+1D-nanorod structure reveals very high specific capacitance values (~7.4 mF.cm-2) due to the unique mixed morphology which manifests higher active sites (hence, higher utilization of the active materials) in terms of greater roughness at the 2D-platelet structures and higher surface-to-volume-ratio in the 1D-nanorod structures. PMID- 29038428 TI - Denervation-related alterations and biological activity of miRNAs contained in exosomes released by skeletal muscle fibers. AB - Exosomes are vesicles released by many eukaryotic cells; their cargo includes proteins, mRNA and microRNA (miR) that can be transferred to recipient cells and regulate cellular processes in an autocrine or paracrine manner. While cells of the myoblast lineage secrete exosomes, it is not known whether skeletal muscle fibers (myofibers) release exosomes. In this study, we found that cultured myofibers release nanovesicles that have bilamellar membranes and an average size of 60-130 nm, contain typical exosomal proteins and miRNAs and are taken up by C2C12 cells. miR-133a was found to be the most abundant myomiR in these vesicles while miR-720 was most enriched in exosomes compared to parent myofibers. Treatment of NIH 3T3 cells with myofiber-derived exosomes downregulated the miR 133a targets proteins Smarcd1 and Runx2, confirming that these exosomes have biologically relevant effects on recipient cells. Denervation resulted in a marked increase in miR-206 and reduced expression of miRs 1, 133a, and 133b in myofiber-derived exosomes. These findings demonstrate that skeletal muscle fibers release exosomes which can exert biologically significant effects on recipient cells, and that pathological muscle conditions such as denervation induce alterations in exosomal miR profile which could influence responses to disease states through autocrine or paracrine mechanisms. PMID- 29038429 TI - One Dimensional Coordination Polymer of Zn(II) for Developing Multifunctional Nanoparticles. AB - A variety of nanoparticles (NPs) including Ag, Au, Pd, Cr and mixed Cu/Fe have been synthesized in a non-activated (without solvent removal) one dimensional coordination polymer (CP) of Zn(II) via two different mechanisms, acid formation and redox activity of the framework. Main driving force to grow these NPs within the cavities of CP is the presence of free oxygens of one of the monodentate carboxylate groups of BDC ligand. These free oxygens act as anchoring sites for the metal ions of the metal precursors. Chemical and physical characteristics of the NPs within the framework have been evaluated by the high resolution transmission electron microscopic (HRTEM) images. Excluding Ag(0) and Pd(0) other NPs are present as combinations of their elemental as well as oxide forms (Au/Au2O3, Cr/Cr2O3/CrO2 and Cu/Cu2O, Fe/FeO). Synthesized Ag NPs within the framework show remarkable antibacterial efficacy at extremely low concentrations. Ag, Au and Cu/Fe NPs show ferromagnetic properties within the framework at room temperature. This polymer has potential to sequester highly toxic Cr(VI) to non toxic Cr(0), Cr(III) and Cr(IV) species. PMID- 29038431 TI - High rates of organic carbon processing in the hyporheic zone of intermittent streams. AB - Organic carbon cycling is a fundamental process that underpins energy transfer through the biosphere. However, little is known about the rates of particulate organic carbon processing in the hyporheic zone of intermittent streams, which is often the only wetted environment remaining when surface flows cease. We used leaf litter and cotton decomposition assays, as well as rates of microbial respiration, to quantify rates of organic carbon processing in surface and hyporheic environments of intermittent and perennial streams under a range of substrate saturation conditions. Leaf litter processing was 48% greater, and cotton processing 124% greater, in the hyporheic zone compared to surface environments when calculated over multiple substrate saturation conditions. Processing was also greater in more saturated surface environments (i.e. pools). Further, rates of microbial respiration on incubated substrates in the hyporheic zone were similar to, or greater than, rates in surface environments. Our results highlight that intermittent streams are important locations for particulate organic carbon processing and that the hyporheic zone sustains this fundamental process even without surface flow. Not accounting for carbon processing in the hyporheic zone of intermittent streams may lead to an underestimation of its local ecological significance and collective contribution to landscape carbon processes. PMID- 29038430 TI - Two-dimensional metallic tantalum disulfide as a hydrogen evolution catalyst. AB - Two-dimensional metallic transition metal dichalcogenides are emerging as prototypes for uncovering fundamental physical phenomena, such as superconductivity and charge-density waves, as well as for engineering-related applications. However, the batch production of such envisioned transition metal dichalcogenides remains challenging, which has hindered the aforementioned explorations. Herein, we fabricate thickness-tunable tantalum disulfide flakes and centimetre-sized ultrathin films on an electrode material of gold foil via a facile chemical vapour deposition route. Through temperature-dependent Raman characterization, we observe the transition from nearly commensurate to commensurate charge-density wave phases with our ultrathin tantalum disulfide flakes. We have obtained high hydrogen evolution reaction efficiency with the as grown tantalum disulfide flakes directly synthesized on gold foils comparable to traditional platinum catalysts. This work could promote further efforts for exploring new efficient catalysts in the large materials family of metallic transition metal dichalcogenides, as well as exploiting their applications towards more versatile applications.Metallic transition metal dichalcogenides are important materials for catalysis, but scalable and controllable preparation methods are scarce. Here, the authors synthesize 2H-TaS2 as centimetre-scale films of tunable thickness and show they are an efficient catalyst for hydrogen evolution. PMID- 29038432 TI - Efficacy and safety for Apatinib treatment in advanced gastric cancer: a real world study. AB - Apatinib has been proved to be effective and safe among patients in gastric cancer in Phase II and III Trials. We aimed to evaluate its efficacy and safety in real world practice, and to explore factors associated with efficacy. Between January 2015 and February 2017, totally 36 patients with advanced gastric adenocarcinoma or adenocarcinoma of gastroesophageal junction (GEJ) were enrolled and followed up retrospectively after failing at least two lines of systemic therapy. The mPFS was 2.65 months (95%CI 1.66-3.54), and mOS was 5.8 months (95%CI 4.77-6.83). Two patients achieved partial response, and nineteen achieved stable disease. The disease control rate (DCR) was 58.3%, and objective response rate (ORR) was 5.6%. Common grade adverse events were hypertension (38.9%), proteinuria (36.1%), and neutropenia (33.3%). And the most common adverse events over grade 3 were hand-foot syndrome (8.3%), anemia (5.6%), and diarrhea (5.6%). No treatment-related death was documented during the drug administration. Exploratory analyses indicated patients treated with antiangiogenic therapy previously were more likely to benefit from apatinib. PMID- 29038433 TI - Phenotyping of autoreactive B cells with labeled nucleosomes in 56R transgenic mice. AB - The phenotypic characterization of self-reactive B cells producing autoantibodies is one of the challenges to get further insight in the physiopathology of autoimmune diseases. We took advantage of our previously developed flow cytometry method, using labeled nucleosomes, prominent autoantigens in systemic lupus erythematosus, to analyze the phenotype of self-reactive B cells in the anti-DNA B6.56R mouse model. We showed that splenic anti-nucleosome B cells express mostly kappa light chains and harbor a marginal zone phenotype. Moreover, these autoreactive B cells fail to acquire a germinal center phenotype and are less abundant in the transitional T3 compartment. In conclusion, the direct detection of autoreactive B cells helped determine their phenotypic characteristics and provided a more direct insight into the B cell tolerance process in B6.56R mice. This method constitutes an interesting new tool to study the mechanisms of B cell tolerance breakdown in B6.56R mice crossed with autoimmune prone models. PMID- 29038435 TI - Specificity of surface EMG recordings for gastrocnemius during upright standing. AB - The relatively large pick-up volume of surface electrodes has for long motivated the concern that muscles other than that of interest may contribute to surface electromyograms (EMGs). Recent findings suggest however the pick-up volume of surface electrodes may be smaller than previously appreciated, possibly leading to the detection of surface EMGs insensitive to muscle activity. Here we combined surface and intramuscular recordings to investigate how comparably action potentials from gastrocnemius and soleus are represented in surface EMGs detected with different inter-electrode distances. We computed the firing instants of motor units identified from intramuscular EMGs detected from gastrocnemius and soleus while five participants stood upright. We used these instants to trigger and average surface EMGs detected from multiple skin regions along gastrocnemius. Results from 66 motor units (whereof 31 from gastrocnemius) revealed the surface recorded amplitude of soleus action potentials was 6% of that of gastrocnemius and did not decrease for inter-electrode distances smaller than 4 cm. Gastrocnemius action potentials were more likely detected for greater inter electrode distances and their amplitude increased steeply up to 5 cm inter electrode distance. These results suggest that reducing inter-electrode distance excessively may result in the detection of surface EMGs insensitive to gastrocnemius activity without substantial attenuation of soleus crosstalk. PMID- 29038434 TI - Barley SIX-ROWED SPIKE3 encodes a putative Jumonji C-type H3K9me2/me3 demethylase that represses lateral spikelet fertility. AB - The barley inflorescence (spike) comprises a multi-noded central stalk (rachis) with tri-partite clusters of uni-floretted spikelets attached alternately along its length. Relative fertility of lateral spikelets within each cluster leads to spikes with two or six rows of grain, or an intermediate morphology. Understanding the mechanisms controlling this key developmental step could provide novel solutions to enhanced grain yield. Classical genetic studies identified five major SIX-ROWED SPIKE (VRS) genes, with four now known to encode transcription factors. Here we identify and characterise the remaining major VRS gene, VRS3, as encoding a putative Jumonji C-type H3K9me2/me3 demethylase, a regulator of chromatin state. Exploring the expression network modulated by VRS3 reveals specific interactions, both with other VRS genes and genes involved in stress, hormone and sugar metabolism. We show that combining a vrs3 mutant allele with natural six-rowed alleles of VRS1 and VRS5 leads to increased lateral grain size and greater grain uniformity.The VRS genes of barley control the fertility of the lateral spikelets on the barley inflorescence. Here, Bull et al. show that VRS3 encodes a putative Jumonji C-type histone demethylase that regulates expression of other VRS genes, and genes involved in stress, hormone and sugar metabolism. PMID- 29038436 TI - Signatures of a time-reversal symmetric Weyl semimetal with only four Weyl points. AB - Through intense research on Weyl semimetals during the past few years, we have come to appreciate that typical Weyl semimetals host many Weyl points. Nonetheless, the minimum nonzero number of Weyl points allowed in a time-reversal invariant Weyl semimetal is four. Realizing such a system is of fundamental interest and may simplify transport experiments. Recently, it was predicted that TaIrTe4 realizes a minimal Weyl semimetal. However, the Weyl points and Fermi arcs live entirely above the Fermi level, making them inaccessible to conventional angle-resolved photoemission spectroscopy (ARPES). Here, we use pump probe ARPES to directly access the band structure above the Fermi level in TaIrTe4. We observe signatures of Weyl points and topological Fermi arcs. Combined with ab initio calculation, our results show that TaIrTe4 is a Weyl semimetal with the minimum number of four Weyl points. Our work provides a simpler platform for accessing exotic transport phenomena arising in Weyl semimetals.Weyl semimetals are interesting because they are characterized by topological invariants, but specific examples discovered to date tend to have complicated band structures with many Weyl points. Here, the authors show that TaIrTe4 has only four Weyl points, the minimal number required by time-reversal symmetry. PMID- 29038437 TI - SRVF, a novel herbal formula including Scrophulariae Radix and Viticis Fructus, disrupts focal adhesion and causes detachment-induced apoptosis in malignant cancer cells. AB - When cells lose adhesion, they undergo detachment-induced apoptosis, known as anoikis. In contrast, tumor cells acquire resistance to anoikis, enabling them to survive, even after separating from neighboring cells or the ECM. Therefore, agents that restore anoikis sensitivity may serve as anti-cancer candidates. In this study, we constructed a novel herbal formula, SRVF, which contains Scrophulariae Radix (SR) and Viticis Fructus (VF). SRVF rapidly decreased cell adhesion, altered the cell morphology to round, and induced cell death; however, SR, VF, or their co-treatment did not. SRVF arrested HT1080 cells in G2/M phase, increased the levels of pro-apoptotic proteins, and decreased the levels of anti apoptotic proteins. Furthermore, SRVF efficiently reduced cell-cell and cell-ECM interactions by disrupting the F-actin cytoskeleton and down-regulating the levels of focal adhesion-related proteins, suggesting that SRVF efficiently triggers detachment-induced apoptosis (i.e., anoikis) in malignant cancer cells. In xenograft mouse models, daily oral administration of 50 or 100 mg/kg SRVF retarded tumor growth in vivo, and repeated administration of SRVF did not cause systemic toxicity in normal mice. These data collectively indicate that SRVF induces cancer cell death by restoring anoikis sensitivity via disrupting focal adhesion. Therefore, SRVF may be a safe and potent anti-cancer herbal decoction. PMID- 29038438 TI - Haplotype analysis of XRCC2 gene polymorphisms and association with increased risk of head and neck cancer. AB - We aimed to investigate the effect of hotspot variations of XRCC2 gene on the risk of head and neck cancer (HNC) in 400 patients and 400 controls. Five polymorphisms of XRCC2 gene G4234C (rs3218384), G4088T (rs3218373), G3063A (rs2040639), R188H (rs3218536) and rs7802034 were analyzed using Allele- specific polymerase chain reaction (ARMS-PCR) followed by sequence analysis. For rs3218373, the GG genotype indicated a statistically significant 3-fold increased risk of HNC (P < 0.001) after multivariate adjustment. For rs7802034, the GG genotype suggested statistically significant 2-fold increased risk of HNC (P < 0.001). For SNP of rs3218536, the AA genotype indicated a significant 3-fold increased risk of HNC (P < 0.001). Additionally, haplotype analysis revealed that TACAG, TGGAG, TACGG and TAGGA haplotypes of XRCC2 polymorphisms are associated with HNC risk. Two SNPs in XRCC2 (rs2040639 and rs3218384) were found increased in strong linkage disequilibrium. Furthermore, joint effect model showed 20 fold (OR = 19.89; 95% CI = 2.65-149.36, P = 0.003) increased HNC risk in patients carrying four homozygous risk alleles of selected polymorphisms. These results show that allele distributions and genotypes of XRCC2 SNPs are significantly associated with increased HNC risk and could be a genetic adjuster for the said disease. PMID- 29038440 TI - miR-29b regulates expression of collagens I and III in chondrogenically differentiating BMSC in an osteoarthritic environment. AB - Osteoarthritis (OA) is characterized by a slowly progressing, irreversible loss of articular cartilage. Tissue engineering approaches for cartilage regeneration include stem cell-based strategies but not much is known about their repair capacity in an OA microenvironment. The aim of the present study was to identify factors regulating collagen expression during chondrogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSC) in an OA microenvironment. Coculture with OA cartilage induced miR-29b expression in BMSC which inhibited collagen I and III expression. Elevated miR-29b expression resulted in higher caspase 3/7 activity and promoted apoptosis of BMSC in part by directly inhibiting the anti-apoptotic proteins Bcl-2 and Mcl-1. Stimulation with IFN gamma induced miR-29b expression in BMSC. Our results suggest that miR-29b affects BMSC-based OA cartilage regeneration because expression of collagen III, mainly produced by undifferentiated BMSC, and collagen I, a marker for dedifferentiated chondrocytes, are inhibited by miR-29b thus influencing composition of the newly formed ECM. This might be critical to avoid formation of inferior fibrocartilage instead of hyaline cartilage. Furthermore, higher miR-29b expression promotes apoptosis either preventing excessive cell growth or reducing the number of BMSC undergoing chondrogenesis. Thus, miR-29b has both supportive but possibly also unfavourable effects on BMSC-based OA cartilage regeneration. PMID- 29038442 TI - Precise measurement of hyperfine structure in the 3S1/2 state of 7Li. AB - We report a precise measurement of hyperfine structure in the 3S1/2 state of the odd isotope of Li, namely 7Li. The state is excited from the ground 2S1/2 state (which has the same parity) using two single-photon transitions via the intermediate 2P3/2 state. The value of the hyperfine constant we measure is A = 93.095(52) MHz, which resolves two discrepant values reported in the literature measured using other techniques. Our value is also consistent with theoretical calculations. PMID- 29038439 TI - Analysis of Nkx3.1:Cre-driven Erk5 deletion reveals a profound spinal deformity which is linked to increased osteoclast activity. AB - Extracellular signal-regulated protein kinase 5 (ERK5) has been implicated during development and carcinogenesis. Nkx3.1-mediated Cre expression is a useful strategy to genetically manipulate the mouse prostate. While grossly normal at birth, we observed an unexpected phenotype of spinal protrusion in Nkx3.1:Cre;Erk5 fl/fl (Erk5 fl/fl) mice by ~6-8 weeks of age. X-ray, histological and micro CT (uCT) analyses showed that 100% of male and female Erk5 fl/fl mice had a severely deformed curved thoracic spine, with an associated loss of trabecular bone volume. Although sex-specific differences were observed, histomorphometry measurements revealed that both bone resorption and bone formation parameters were increased in male Erk5 fl/fl mice compared to wild type (WT) littermates. Osteopenia occurs where the rate of bone resorption exceeds that of bone formation, so we investigated the role of the osteoclast compartment. We found that treatment of RANKL-stimulated primary bone marrow derived macrophage (BMDM) cultures with small molecule ERK5 pathway inhibitors increased osteoclast numbers. Furthermore, osteoclast numbers and expression of osteoclast marker genes were increased in parallel with reduced Erk5 expression in cultures generated from Erk5 fl/fl mice compared to WT mice. Collectively, these results reveal a novel role for Erk5 during bone maturation and homeostasis in vivo. PMID- 29038441 TI - Distinct mechanisms of acquisition of mcr-1 -bearing plasmid by Salmonella strains recovered from animals and food samples. AB - Since the report of its discovery in E. coli in late 2015, the plasmid-mediated colistin resistance gene, mcr-1, has been detected in various bacterial species in clinical setting and various environmental niches. However, the transmission mechanisms of this gene in Salmonella is less defined. In this study, we conducted a comprehensive study to characterize the genetic features of mcr-1 positive Salmonella strains isolated from animals and foods. Our data revealed that Salmonella recovered from animals and food specimens exhibited highly different PFGE patterns, and acquired mcr-1-encoding plasmids via different mechanism. Plasmids harboring mcr-1 in Salmonella food isolates were all conjugative and similar as plasmids reported in other species of Enterobacteriaceae, whereas mcr-1-bearing plasmids from animal Salmonella isolates were not conjugative, and belonged to the IncHI2 type. The lack of a region carrying the tra genes was found to account for the inability to undergo conjugation for various sizes of IncHI2 plasmids harbored by animal strains. These data suggest that transmission of mcr-1-positive Salmonella from animal to food might not be a common event and food isolates may have acquired mcr-1 bearing plasmids from other mcr-1-positive bacteria such as E. coli, which co exist in food samples. PMID- 29038444 TI - Structural basis for maintenance of bacterial outer membrane lipid asymmetry. AB - The Gram-negative bacterial outer membrane (OM) is a unique bilayer that forms an efficient permeation barrier to protect the cell from noxious compounds 1,2 . The defining characteristic of the OM is lipid asymmetry, with phospholipids comprising the inner leaflet and lipopolysaccharides comprising the outer leaflet 1-3 . This asymmetry is maintained by the Mla pathway, a six-component system that is widespread in Gram-negative bacteria and is thought to mediate retrograde transport of misplaced phospholipids from the outer leaflet of the OM to the cytoplasmic membrane 4 . The OM lipoprotein MlaA performs the first step in this process via an unknown mechanism that does not require external energy input. Here we show, using X-ray crystallography, molecular dynamics simulations and in vitro and in vivo functional assays, that MlaA is a monomeric alpha-helical OM protein that functions as a phospholipid translocation channel, forming a ~20-A thick doughnut embedded in the inner leaflet of the OM with a central, amphipathic pore. This architecture prevents access of inner leaflet phospholipids to the pore, but allows outer leaflet phospholipids to bind to a pronounced ridge surrounding the channel, followed by diffusion towards the periplasmic space. Enterobacterial MlaA proteins form stable complexes with OmpF/C 5,6 , but the porins do not appear to play an active role in phospholipid transport. MlaA represents a lipid transport protein that selectively removes outer leaflet phospholipids to help maintain the essential barrier function of the bacterial OM. PMID- 29038443 TI - Phylogenetic analysis of the metazoan carotenoid oxygenase superfamily: a new ancestral gene assemblage of BCO-like (BCOL) proteins. AB - Here we describe a new family of carotenoid cleavage oxygenases (CCOs) in metazoans, the BCO2-like (BCOL) clade, which contains lancelet, nematode, and molluscan carotenoid oxygenase sequences. Phylogenetic analysis of CCOs in all kingdoms of life confirmed that the BCOL enzymes are an independent clade of ancient origin. One of the predicted lancelet BCOL proteins, cloned and analyzed for carotenoid cleavage activity in a bacterial carotenoid expression system, had activity similar to lancelet BCO2 proteins, although with a preference for cis isomers. Our docking predictions correlated well with the cis-favored activity. The extensive expansions of the new animal BCOL family in some species (e.g., lancelet) suggests that the carotenoid cleavage oxygenase superfamily has evolved in the "extremely high turnover" fashion: numerous losses and duplications of this family are likely to reflect complex regulation processes during development, and interactions with the environment. These findings also serve to provide a rationale for the evolution of the BCO-related outlier RPE65 retinol isomerase, an enzyme that does not utilize carotenoids as substrate or perform double-bond cleavage. PMID- 29038445 TI - Facile Solution Synthesis of Tungsten Trioxide Doped with Nanocrystalline Molybdenum Trioxide for Electrochromic Devices. AB - A facile, highly efficient approach to obtain molybdenum trioxide (MoO3)-doped tungsten trioxide (WO3) is reported. An annealing process was used to transform ammonium tetrathiotungstate [(NH4)2WS4] to WO3 in the presence of oxygen. Ammonium tetrathiomolybdate [(NH4)2MoS4] was used as a dopant to improve the film for use in an electrochromic (EC) cell. (NH4)2MoS4 at different concentrations (10, 20, 30, and 40 mM) was added to the (NH4)2WS4 precursor by sonication and the samples were annealed at 500 degrees C in air. Raman, X-ray diffraction, and X-ray photoelectron spectroscopy measurements confirmed that the (NH4)2WS4 precursor decomposed to WO3 and the (NH4)2MoS4-(NH4)2WS4 precursor was transformed to MoO3-doped WO3 after annealing at 500 degrees C. It is shown that the MoO3-doped WO3 film is more uniform and porous than pure WO3, confirming the doping quality and the privileges of the proposed method. The optimal MoO3-doped WO3 used as an EC layer exhibited a high coloration efficiency of 128.1 cm2/C, which is larger than that of pure WO3 (74.5 cm2/C). Therefore, MoO3-doped WO3 synthesized by the reported method is a promising candidate for high-efficiency and low-cost smart windows. PMID- 29038446 TI - External Quality Assurance for Laboratory Identification and Capsular Typing of Streptococcus pneumoniae. AB - An external quality assessment (EQA) scheme for pneumococcal serotype identification has been performed over a period of 11 years, by a network of European pneumococcal reference laboratories. We report the results from the EQA, and present an assessment of the acceptability and utility of the EQA scheme. Reports from 22 EQA panels distributed in 2005-2016 were analysed. Each EQA panel consisted of seven isolates. A questionnaire including seven questions related to the acceptability and utility of the EQA scheme was distributed to all participating laboratories. Altogether, 154 pneumococcal isolates were tested. Of the 92 serologically distinct serotypes currently defined, 49 serotypes were included in the rounds. Discrepant results were observed in eight EQA rounds, involving 11 isolates (7.1%, 95% CI: 4% to 12%). All participating laboratories reported that the EQA scheme was useful for quality assurance purposes. Our results show that comparable serotyping data can be obtained in different laboratories. The EQA participation helps to keep the typing procedures at a high standard and provides data for accreditation purposes. The EQA is helpful when new technologies are introduced, and reveal limitations of both genotypic and phenotypic methods. Continuation of the presented EQA scheme is planned. PMID- 29038447 TI - Li2MnO3 domain size and current rate dependence on the electrochemical properties of 0.5Li2MnO3.0.5LiCoO2 cathode material. AB - Layered-layered composite oxides of the form xLi2MnO3.(1-x) LiMO2 (M = Mn, Co, Ni) have received much attention as candidate cathode materials for lithium ion batteries due to their high specific capacity (>250mAh/g) and wide operating voltage range of 2.0-4.8 V. However, the cathode materials of this class generally exhibit large capacity fade upon cycling and poor rate performance caused by structural transformations. Since electrochemical properties of the cathode materials are strongly dependent on their structural characteristics, the roles of these components in 0.5Li2MnO3.0.5LiCoO2 cathode material was the focus of this work. In this work, the influences of Li2MnO3 domain size and current rate on electrochemical properties of 0.5Li2MnO3.0.5LiCoO2 cathodes were studied. Experimental results obtained showed that a large domain size provided higher cycling stability. Furthermore, fast cycling rate was also found to help reduce possible structural changes from layered structure to spinel structure that takes place in continuous cycling. PMID- 29038448 TI - Structural evolution of tunneling oxide passivating contact upon thermal annealing. AB - We report on the structural evolution of tunneling oxide passivating contact (TOPCon) for high efficient solar cells upon thermal annealing. The evolution of doped hydrogenated amorphous silicon (a-Si:H) into polycrystalline-silicon (poly Si) by thermal annealing was accompanied with significant structural changes. Annealing at 600 degrees C for one minute introduced an increase in the implied open circuit voltage (Voc) due to the hydrogen motion, but the implied Voc decreased again at 600 degrees C for five minutes. At annealing temperature above 800 degrees C, a-Si:H crystallized and formed poly-Si and thickness of tunneling oxide slightly decreased. The thickness of the interface tunneling oxide gradually decreased and the pinholes are formed through the tunneling oxide at a higher annealing temperature up to 1000 degrees C, which introduced the deteriorated carrier selectivity of the TOPCon structure. Our results indicate a correlation between the structural evolution of the TOPCon passivating contact and its passivation property at different stages of structural transition from the a-Si:H to the poly-Si as well as changes in the thickness profile of the tunneling oxide upon thermal annealing. Our result suggests that there is an optimum thickness of the tunneling oxide for passivating electron contact, in a range between 1.2 to 1.5 nm. PMID- 29038449 TI - Encrypted Antimicrobial Peptides from Plant Proteins. AB - Examples of bioactive peptides derived from internal sequences of proteins are known for decades. The great majority of these findings appear to be fortuitous rather than the result of a deliberate and methodological-based enterprise. In the present work, we describe the identification and the biological activities of novel antimicrobial peptides unveiled as internal fragments of various plant proteins founded on our hypothesis-driven search strategy. All putative encrypted antimicrobial peptides were selected based upon their physicochemical properties that were iteratively selected by an in-house computer program named Kamal. The selected peptides were chemically synthesized and evaluated for their interaction with model membranes. Sixteen of these peptides showed antimicrobial activity against human and/or plant pathogens, some with a wide spectrum of activity presenting similar or superior inhibition efficacy when compared to classical antimicrobial peptides (AMPs). These original and previously unforeseen molecules constitute a broader and undisputable set of evidences produced by our group that illustrate how the intragenic concept is a workable reality and should be carefully explored not only for microbicidal agents but also for many other biological functions. PMID- 29038450 TI - Visuo-acoustic stimulation that helps you to relax: A virtual reality setup for patients in the intensive care unit. AB - After prolonged stay in an intensive care unit (ICU) patients often complain about cognitive impairments that affect health-related quality of life after discharge. The aim of this proof-of-concept study was to test the feasibility and effects of controlled visual and acoustic stimulation in a virtual reality (VR) setup in the ICU. The VR setup consisted of a head-mounted display in combination with an eye tracker and sensors to assess vital signs. The stimulation consisted of videos featuring natural scenes and was tested in 37 healthy participants in the ICU. The VR stimulation led to a reduction of heart rate (p = 0. 049) and blood pressure (p = 0.044). Fixation/saccade ratio (p < 0.001) was increased when a visual target was presented superimposed on the videos (reduced search activity), reflecting enhanced visual processing. Overall, the VR stimulation had a relaxing effect as shown in vital markers of physical stress and participants explored less when attending the target. Our study indicates that VR stimulation in ICU settings is feasible and beneficial for critically ill patients. PMID- 29038451 TI - TC-PTP regulates the IL-7 transcriptional response during murine early T cell development. AB - Cytokines play a critical role in directing the discrete and gradual transcriptional changes that define T cell development. The interleukin-7 receptor (IL-7R), via its activation of the JAK-STAT pathway, promotes gene programs that change dynamically as cells progress through T cell differentiation. The molecular mechanism(s) directing differential gene expression downstream of the IL-7R are not fully elucidated. Here, we have identified T cell protein tyrosine phosphatase (TC-PTP), also known as PTPN2, as a negative regulator of IL-7R-STAT signaling in T cell progenitors, contributing to both the quantitative and qualitative nature of STAT-gene targeting. Novel genetic strategies used to modulate TC-PTP expression demonstrate that depletion of TC-PTP expression heightens the phosphorylation of STAT family members, causing aberrant expression of an interferon-response gene profile. Such molecular re-programming results in deregulation of early development checkpoints culminating in inefficient differentiation of CD4+CD8+ double positive cells. TC PTP is therefore shown to be required to safeguard the dynamic transcriptome necessary for efficient T cell differentiation. PMID- 29038452 TI - Involvement of Ubiquitin-Conjugating Enzyme (E2 Gene Family) in Ripening Process and Response to Cold and Heat Stress of Vitis vinifera. AB - Ubiquitin-conjugating (UBC) E2 enzyme plays crucial roles in plant growth and development. Limited information can describe the function of UBC enzyme E2 in grapes. A total of 43 UBC enzyme E2 genes with conserved UBC domain were identified in grapes. These genes were divided into five groups based on phylogenetic tree with tomatoes. Sequence analyses indicated that VvUBCs in the same group possessed similar gene structures and conserved motifs. Gene distribution in chromosomes was uneven, and gene duplication existed in 36 VvUBCs. Transcriptome and qRT-PCR analysis indicated that most VvUBCs are involved in ripening and post-harvest stage, and feature functional roles in grape organs. According to the transcriptome and qRT-PCR results, seven and six VvUBCs in grape responded to cold and heat stress, respectively, whereas no remarkable VvUBCs change was noted under salt or water-deficit stress. This study provides new insights to physiological and developmental roles of these enzymes and regulation mechanism of E2 genes in grapes. PMID- 29038453 TI - Cryptogamic stem covers may contribute to nitrous oxide consumption by mature beech trees. AB - Naturally produced by microbial processes in soil, nitrous oxide (N2O) is an important greenhouse gas contributing to climate change. Accordingly, there is a need to accurately quantify the capability of forest ecosystems to exchange N2O with the atmosphere. While N2O emissions from soils have been well studied, trees have so far been overlooked in N2O inventories. Here, we show that stems of mature beech trees (Fagus sylvatica) may act as a substantial sink of N2O from the atmosphere under conditions of soils consuming N2O. Consistent consumption of N2O by all stems investigated (ranging between -2.4 and -3.8 ug m-2 h-1) is a novel finding in contrast to current studies presenting trees as N2O emitters. To understand these fluxes, N2O exchange of photoautotrophic organisms associated with beech bark (lichens, mosses and algae) was quantified under laboratory conditions. All these organisms were net N2O sinks at full rehydration and temperature of 25 degrees C. The consumption rates were comparable to stem consumption rates measured under field conditions. Cryptogamic stem covers could be a relevant sink of N2O in European beech forests. PMID- 29038454 TI - Importance of interlayer H bonding structure to the stability of layered minerals. AB - Layered (oxy) hydroxide minerals often possess out-of-plane hydrogen atoms that form hydrogen bonding networks which stabilize the layered structure. However, less is known about how the ordering of these bonds affects the structural stability and solubility of these minerals. Here, we report a new strategy that uses the focused electron beam to probe the effect of differences in hydrogen bonding networks on mineral solubility. In this regard, the dissolution behavior of boehmite (gamma-AlOOH) and gibbsite (gamma-Al(OH)3) were compared and contrasted in real time via liquid cell electron microscopy. Under identical such conditions, 2D-nanosheets of boehmite (gamma-AlOOH) exfoliated from the bulk and then rapidly dissolved, whereas gibbsite was stable. Further, substitution of only 1% Fe(III) for Al(III) in the structure of boehmite inhibited delamination and dissolution. Factors such as pH, radiolytic species, and knock on damage were systematically studied and eliminated as proximal causes for boehmite dissolution. Instead, the creation of electron/hole pairs was considered to be the mechanism that drove dissolution. The widely disparate behaviors of boehmite, gibbsite, and Fe-doped boehmite are discussed in the context of differences in the OH bond strengths, hydrogen bonding networks, and the presence or absence of electron/hole recombination centers. PMID- 29038455 TI - A comparative study of machine learning methods for time-to-event survival data for radiomics risk modelling. AB - : Radiomics applies machine learning algorithms to quantitative imaging data to characterise the tumour phenotype and predict clinical outcome. For the development of radiomics risk models, a variety of different algorithms is available and it is not clear which one gives optimal results. Therefore, we assessed the performance of 11 machine learning algorithms combined with 12 feature selection methods by the concordance index (C-Index), to predict loco regional tumour control (LRC) and overall survival for patients with head and neck squamous cell carcinoma. The considered algorithms are able to deal with continuous time-to-event survival data. Feature selection and model building were performed on a multicentre cohort (213 patients) and validated using an independent cohort (80 patients). We found several combinations of machine learning algorithms and feature selection methods which achieve similar results, e.g. , MSR-RF: C-Index = 0.71 and BT-COX: C-Index = 0.70 in combination with Spearman feature selection. Using the best performing models, patients were stratified into groups of low and high risk of recurrence. Significant differences in LRC were obtained between both groups on the validation cohort. Based on the presented analysis, we identified a subset of algorithms which should be considered in future radiomics studies to develop stable and clinically relevant predictive models for time-to-event endpoints. PMID- 29038456 TI - Incomplete Ionization of a 110 meV Unintentional Donor in beta-Ga2O3 and its Effect on Power Devices. AB - Understanding the origin of unintentional doping in Ga2O3 is key to increasing breakdown voltages of Ga2O3 based power devices. Therefore, transport and capacitance spectroscopy studies have been performed to better understand the origin of unintentional doping in Ga2O3. Previously unobserved unintentional donors in commercially available [Formula: see text] Ga2O3 substrates have been electrically characterized via temperature dependent Hall effect measurements up to 1000 K and found to have a donor energy of 110 meV. The existence of the unintentional donor is confirmed by temperature dependent admittance spectroscopy, with an activation energy of 131 meV determined via that technique, in agreement with Hall effect measurements. With the concentration of this donor determined to be in the mid to high 1016 cm-3 range, elimination of this donor from the drift layer of Ga2O3 power electronics devices will be key to pushing the limits of device performance. Indeed, analytical assessment of the specific on-resistance (Ronsp) and breakdown voltage of Schottky diodes containing the 110 meV donor indicates that incomplete ionization increases Ronsp and decreases breakdown voltage as compared to Ga2O3 Schottky diodes containing only the shallow donor. The reduced performance due to incomplete ionization occurs in addition to the usual tradeoff between Ronsp and breakdown voltage. PMID- 29038457 TI - Bacteriome genetic structures of urban deposits are indicative of their origin and impacted by chemical pollutants. AB - Urban activities generate surface deposits over impervious surfaces that can represent ecological and health hazards. Bacteriome genetic structures of deposits washed off during rainfall events, over an urban industrial watershed, were inferred from 16 S rRNA gene (rrs) sequences generated by high throughput sequencing. Deposits were sampled over a 4 year-period from a detention basin (DB). Major shifts, matching key management practices, in the structure of these urban bacteriomes, were recorded. Correlation analyses of rrs similarities between samples and their respective concentrations in chemical pollutants, markers of human fecal contaminations (HF183) and antimicrobial resistances (integrons), were performed. Harsher environmental constraints building up in the older deposits led to an increase number of rrs reads from extremophiles such as Acidibacter and Haliangium. Deposits accumulating in the decantation pit of the DB showed an increase in rrs reads from warm blooded intestinal tract bacteria such as Bacteroides and Prevotella. This enrichment matched higher concentrations of Bacteroides HF183 genotypes normally restricted to humans. Bacteriomes of urban deposits appeared good indicators of human-driven environmental changes. Their composition was found representative of their origin. Soil particles and rain appeared to be major contributors of the inferred bacterial taxa recovered from recent deposits. PMID- 29038458 TI - Observation of current-induced bulk magnetization in elemental tellurium. AB - The magnetoelectric effect in bulk matter is of growing interest both fundamentally and technologically. Since the beginning of the century, the magnetoelectric effect has been studied intensively in multiferroic materials. However, magnetoelectric phenomena in materials without any (anti-)ferroic order remain almost unexplored. Here we show the observation of a new class of bulk magnetoelectric effect, by revisiting elemental trigonal tellurium. We demonstrate that elemental tellurium, which is a nonmagnetic semiconductor, exhibits current-induced magnetization. This effect is attributed to spin splitting of the bulk band owing to the lack of inversion symmetry in trigonal tellurium. This finding highlights magnetoelectricity in bulk matter driven by moving electrons without any (anti-)ferroic order. Notably, current-induced magnetization generates a magnetic field that is not circular around but is parallel to the applied current; thus, this phenomenon opens a new area of magnetic field generation beyond Ampere's law that may lead to industrial applications.Electrical control of magnetic response in bulk material without electric or magnetic order is rare and potentially attractive for high efficient spintronics. Here, the authors report magnetization in elemental tellurium driven purely by current without any (anti-)ferroic order. PMID- 29038459 TI - Small-scale variation of ammonia oxidisers within intertidal sediments dominated by ammonia-oxidising bacteria Nitrosomonas sp. amoA genes and transcripts. AB - While numerous studies have investigated the abundance of ammonia oxidising bacteria and archaea (AOB/AOA) via the ammonia monooxygenase gene amoA, less is known about their small-scale variation and if amoA gene abundance equates to activity. Here we present a spatial and temporal study of ammonia oxidation in two small intertidal bays, Rusheen and Clew bay, Ireland. Potential Nitrification Rate (PNR) was ten-fold higher in Rusheen bay (Clew: 0.27 +/- SD 0.55; Rusheen: 2.46 +/- SD 3.4 NO2- ug-1 g-1 day-1, P < 0.001) than in Clew bay but amoA gene abundances were similar between bays, and comparable to those in other coastal ecosystems. Within bays AOB genes increased towards the muddy sediments and were positively correlated with PNR and pH. Less spatial variation was observed in AOA abundances which nevertheless positively correlated with pH and temperature and negatively with salinity and ammonia. Transcriptionally active AOB and AOA were quantified from all sites in Rusheen bay, February 2014, following the general trends observed at DNA level. AOB phylotypes predominantly from the known Nitrosomonas group were distributed across the bay, while Nitrosomonas group B phylotypes were absent from low salinity sites. AOA genes and transcripts were primarily affiliated with Thaumarchaeota group I.1a. PMID- 29038460 TI - A novel immunohistochemical score to predict early mortality in acute myeloid leukemia patients based on indoleamine 2,3 dioxygenase expression. AB - Indoleamine 2,3 dioxygenase-1 (IDO-1) is an enzyme in the kynurenine pathway which augments tumor-induced immune tolerance. Previous studies in childhood acute myeloid leukemia (AML) have shown a negative correlation of IDO-1 mRNA expression with outcomes. The aim of our study was to develop a practical and objective immunohistochemical technique to quantify IDO-1 expression on diagnostic bone marrow biopsies of AML patients in order to facilitate its use in routine clinical practice. IDO-1 mRNA was extracted from diagnostic bone marrow specimens from 29 AML patients. IDO-1 protein expression was assessed in 40 cases via immunohistochemistry and quantified by a novel 'composite IDO-1 score'. In a univariate analysis, higher age (p = 0.0018), male gender (p = 0.019), high risk cytogenetics (p = 0.002), higher IDO-1 mRNA (p = 0.005), higher composite IDO-1 score (p < 0.0001) and not undergoing allogeneic stem cell transplant (SCT, p = 0.0005) predicted poor overall survival. In a multivariate model that included the aforementioned variables, higher composite IDO-1 score (p = 0.007) and not undergoing allogeneic SCT (p = 0.007) was found to significantly predict poor outcomes. Further, patients who failed induction had higher composite IDO-1 score (p = 0.01). In conclusion, 'composite IDO-1 score' is a prognostic tool that can help identify a certain subset of AML patients with 'early mortality'. This unique subset of patients can potentially benefit from specific IDO-1 inhibitor therapy, currently in clinical trials. PMID- 29038461 TI - The Bacteroidales produce an N-acylated derivative of glycine with both cholesterol-solubilising and hemolytic activity. AB - The contribution of the gut microbiota to the metabolism of cholesterol is not well understood. In this study, we identify 21 fosmid clones from a human gut microbiome metagenomic library that, when expressed in Escherichia coli, produce halos on LB agar supplemented with 0.01% (w/v) cholesterol (LBC agar). Analysis of 14 of these clones revealed that they all share a fragment of DNA with homology to the genome of Bacteroides vulgatus. The gene responsible for halo production on LBC agar, named choA, was identified as an N-acyltransferase known to produce an acylated glycine molecule called commendamide. In this study we show that commendamide is capable of producing a halo on LBC agar suggesting that this molecule is solubilizing the cholesterol micelles in LBC agar. We also show that commendamide is responsible for the previously described hemolytic activity associated with the choA orthologue in Bacteroides fragilis. A functional analysis of ChoA identified 2 amino acids that are important for commendamide biosynthesis and we present phylogenetic and functional data showing that orthologues of choA are found only in the order Bacteroidales. Therefore, the production of commendamide may be an adaptation to the environments colonized by the Bacteroidales, including the mammalian gut. PMID- 29038462 TI - Development of an athyroid mouse model using 131I ablation after preparation with a low-iodine diet. AB - We optimized the protocol for thyroid ablation in living mice using radioactive iodine (RAI) and a low-iodine diet (LID). To examine the effect of LID on thyroid ablation, mice were randomly divided into 4 groups: Vehicle, 131I 2.775 MBq, 131I 5.55 MBq, and LID + 131I 2.775 MBq. The LID group was fed a LID for up to 7 days and then mice in the 131I 2.775, 131I 5.55, and LID + 131I 2.775 MBq groups were intravenously administrated with 131I, respectively. Scintigraphy imaging with 99mTc pertechnetate was performed once in 2 weeks for 4 weeks. After establishment of athyroid mice, control or athyroid mice were injected with human anaplastic thyroid cancer cells co-expressing sodium iodine symporter and enhanced firefly luciferase (ARO/NF) to evaluate RAI uptake. Scintigraphy imaging with 99mTc pertechnetate was performed with ARO/NF tumor-bearing mice. Scintigraphy imaging showed decreased thyroid uptake in the LID + 131I 2.775 MBq group compared to other groups. Scintigraphy images showed that tumor uptake was statically higher in athyroid mice than in control mice. These data suggest that these optimized conditions for thyroid ablation could be helpful to establish an in vivo mouse model. PMID- 29038464 TI - Unveiling some FDA-approved drugs as inhibitors of the store-operated Ca2+ entry pathway. AB - The store-operated calcium entry (SOCE) pathway is an important route for generating cytosolic Ca2+ signals that regulate a diverse array of biological processes. Abnormal SOCE seem to underlie several diseases that notably include allergy, inflammation and cancer. Therefore, any modulator of this pathway is likely to have significant impact in cell biology under both normal and abnormal conditions. In this study, we screened the FDA-approved drug library for agents that share significant similarity in 3D shape and surface electrostatics with few, hitherto best known inhibitors of SOCE. This has led to the identification of five drugs that showed dose-dependent inhibition of SOCE in cell-based assay, probably through interacting with the Orai1 protein which effectively mediates SOCE. Of these drugs, leflunomide and teriflunomide could suppress SOCE significantly at clinically-relevant doses and this provides for an additional mechanism towards the therapeutic utility of these drugs as immunosuppressants. The other three drugs namely lansoprazole, tolvaptan and roflumilast, were less potent in suppressing SOCE but were more selective and thus they may serve as novel scaffolds for future development of new, more efficacious SOCE inhibitors. PMID- 29038463 TI - NCoR1 restrains thymic negative selection by repressing Bim expression to spare thymocytes undergoing positive selection. AB - Thymocytes must pass both positive and negative selections to become mature T cells. Negative selection purges thymocytes whose T-cell receptors (TCR) exhibit high affinity to self-peptide MHC complexes (self pMHC) to avoid autoimmune diseases, while positive selection ensures the survival and maturation of thymocytes whose TCRs display intermediate affinity to self pMHCs for effective immunity, but whether transcriptional regulation helps conserve positively selected thymocytes from being purged by negative selection remains unclear. Here we show that the specific deletion of nuclear receptor co-repressor 1 (NCoR1) in T cells causes excessive negative selection to reduce mature thymocyte numbers. Mechanistically, NCoR1 protects positively selected thymocytes from negative selection by suppressing Bim expression. Our study demonstrates a critical function of NCoR1 in coordinated positive and negative selections in the thymus.Thymocytes are screened by two processes, termed positive and negative selections, which are permissive only for immature thymocytes with intermediate avidity to the selecting ligands. Here the authors show that the nuclear receptor NCoR1 suppresses Bim1 to inhibit negative selection and promote thymocyte survival. PMID- 29038465 TI - NMI and IFP35 serve as proinflammatory DAMPs during cellular infection and injury. AB - Damage-associated molecular patterns (DAMP) trigger innate immune response and exacerbate inflammation to combat infection and cellular damage. Identifying DAMPs and revealing their functions are thus of crucial importance. Here we report that two molecules, N-myc and STAT interactor (NMI) and interferon-induced protein 35 (IFP35) act as DAMPs and are released by activated macrophages during lipopolysaccharide-induced septic shock or acetaminophen-induced liver injury. We show that extracellular NMI and IFP35 activate macrophages to release proinflammatory cytokines by activating nuclear factor-kappaB through the Toll like receptor 4 pathway. In addition, the serum levels of NMI are increased in patients who succumbed to severe inflammation. NMI deficiency reduces inflammatory responses and mortality in mouse models of sepsis and liver injury. We therefore propose that extracellular NMI and IFP35 exacerbate inflammation as DAMPs, making them potential therapeutic targets for clinical intervention.Damage associated molecular patterns (DAMP) are important mediators of innate immunity. Here the authors show that N-myc and STAT interactor (NMI) and interferon-induced protein 35 (IFP35) act as DAMPs to promote inflammation by activating macrophages via the Toll-like receptor 4 and NF-kappaB pathways. PMID- 29038468 TI - Barocaloric effect on graphene. AB - We describe how mechanical strain is able to control the flow of heat on a graphene sheet, since this material can either absorb or expel heat from/to a thermal reservoir, depending on the strain energy. In a similar fashion as the magneto- and electro-caloric effects, the present case considers the fact that a mechanical strain produces a pseudo-magnetic field that, on its turn, is responsible for the barocaloric effect. This result pushes graphene to the list of multicaloric materials. PMID- 29038467 TI - Self-sensing in Bacillus subtilis quorum-sensing systems. AB - Bacterial cell-cell signalling, or quorum sensing, is characterized by the secretion and groupwide detection of small diffusible signal molecules called autoinducers. This mechanism allows cells to coordinate their behaviour in a density-dependent manner. A quorum-sensing cell may directly respond to the autoinducers it produces in a cell-autonomous and quorum-independent manner, but the strength of this self-sensing effect and its impact on bacterial physiology are unclear. Here, we explore the existence and impact of self-sensing in the Bacillus subtilis ComQXP and Rap-Phr quorum-sensing systems. By comparing the quorum-sensing response of autoinducer-secreting and non-secreting cells in co culture, we find that secreting cells consistently show a stronger response than non-secreting cells. Combining genetic and quantitative analyses, we demonstrate this effect to be a direct result of self-sensing and rule out an indirect regulatory effect of the autoinducer production genes on response sensitivity. In addition, self-sensing in the ComQXP system affects persistence to antibiotic treatment. Together, these findings indicate the existence of self-sensing in the two most common designs of quorum-sensing systems of Gram-positive bacteria. PMID- 29038466 TI - Replication fork reversal triggers fork degradation in BRCA2-defective cells. AB - Besides its role in homologous recombination, the tumor suppressor BRCA2 protects stalled replication forks from nucleolytic degradation. Defective fork stability contributes to chemotherapeutic sensitivity of BRCA2-defective tumors by yet elusive mechanisms. Using DNA fiber spreading and direct visualization of replication intermediates, we report that reversed replication forks are entry points for fork degradation in BRCA2-defective cells. Besides MRE11 and PTIP, we show that RAD52 promotes stalled fork degradation and chromosomal breakage in BRCA2-defective cells. Inactivation of these factors restores reversed fork frequency and chromosome integrity in BRCA2-defective cells. Conversely, impairing fork reversal prevents fork degradation, but increases chromosomal breakage, uncoupling fork protection, and chromosome stability. We propose that BRCA2 is dispensable for RAD51-mediated fork reversal, but assembles stable RAD51 nucleofilaments on regressed arms, to protect them from degradation. Our data uncover the physiopathological relevance of fork reversal and illuminate a complex interplay of homologous recombination factors in fork remodeling and stability.BRCA2 is involved in both homologous recombination (HR) and the protection of stalled replication forks from degradation. Here the authors reveal how HR factors cooperate in fork remodeling, showing that BRCA2 supports RAD51 loading on the regressed arms of reversed replication forks to protect them from degradation. PMID- 29038469 TI - Spatial distribution of citizen science casuistic observations for different taxonomic groups. AB - Opportunistic citizen science databases are becoming an important way of gathering information on species distributions. These data are temporally and spatially dispersed and could have limitations regarding biases in the distribution of the observations in space and/or time. In this work, we test the influence of landscape variables in the distribution of citizen science observations for eight taxonomic groups. We use data collected through a Portuguese citizen science database (biodiversity4all.org). We use a zero inflated negative binomial regression to model the distribution of observations as a function of a set of variables representing the landscape features plausibly influencing the spatial distribution of the records. Results suggest that the density of paths is the most important variable, having a statistically significant positive relationship with number of observations for seven of the eight taxa considered. Wetland coverage was also identified as having a significant, positive relationship, for birds, amphibians and reptiles, and mammals. Our results highlight that the distribution of species observations, in citizen science projects, is spatially biased. Higher frequency of observations is driven largely by accessibility and by the presence of water bodies. We conclude that efforts are required to increase the spatial evenness of sampling effort from volunteers. PMID- 29038470 TI - Trios-promising in silico biomarkers for differentiating the effect of disease on the human microbiome network. AB - Recent advances in the HMP (human microbiome project) research have revealed profound implications of the human microbiome to our health and diseases. We postulated that there should be distinctive features associated with healthy and/or diseased microbiome networks. Following Occam's razor principle, we further hypothesized that triangle motifs or trios, arguably the simplest motif in a complex network of the human microbiome, should be sufficient to detect changes that occurred in the diseased microbiome. Here we test our hypothesis with six HMP datasets that cover five major human microbiome sites (gut, lung, oral, skin, and vaginal). The tests confirm our hypothesis and demonstrate that the trios involving the special nodes (e.g., most abundant OTU or MAO, and most dominant OTU or MDO, etc.) and interactions types (positive vs. negative) can be a powerful tool to differentiate between healthy and diseased microbiome samples. Our findings suggest that 12 kinds of trios (especially, dominantly inhibitive trio with mixed strategy, dominantly inhibitive trio with pure strategy, and fully facilitative strategy) may be utilized as in silico biomarkers for detecting disease-associated changes in the human microbiome, and may play an important role in personalized precision diagnosis of the human microbiome associated diseases. PMID- 29038471 TI - Myoblasts and macrophages are required for therapeutic morpholino antisense oligonucleotide delivery to dystrophic muscle. AB - Exon skipping is a promising therapeutic strategy for Duchenne muscular dystrophy (DMD), employing morpholino antisense oligonucleotides (PMO-AO) to exclude disruptive exons from the mutant DMD transcript and elicit production of truncated dystrophin protein. Clinical trials for PMO show variable and sporadic dystrophin rescue. Here, we show that robust PMO uptake and efficient production of dystrophin following PMO administration coincide with areas of myofiber regeneration and inflammation. PMO localization is sustained in inflammatory foci where it enters macrophages, actively differentiating myoblasts and newly forming myotubes. We conclude that efficient PMO delivery into muscle requires two concomitant events: first, accumulation and retention of PMO within inflammatory foci associated with dystrophic lesions, and second, fusion of PMO-loaded myoblasts into repairing myofibers. Identification of these factors accounts for the variability in clinical trials and suggests strategies to improve this therapeutic approach to DMD.Exon skipping is a strategy for the treatment of Duchenne muscular dystrophy, but has variable efficacy. Here, the authors show that dystrophin restoration occurs preferentially in areas of myofiber regeneration, where antisense oligonucleotides are stored in macrophages and delivered to myoblasts and newly formed myotubes. PMID- 29038473 TI - Soil biota contributions to soil aggregation. AB - Humankind depends on the sustainability of soils for its survival and well-being. Threatened by a rapidly changing world, our soils suffer from degradation and biodiversity loss, making it increasingly important to understand the role of soil biodiversity in soil aggregation-a key parameter for soil sustainability. Here, we provide evidence of the contribution of soil biota to soil aggregation on macro- and microaggregate scales, and evaluate how specific traits, soil biota groups and species interactions contribute to this. We conducted a global meta analysis comprising 279 soil biota species. Our study shows a clear positive effect of soil biota on soil aggregation, with bacteria and fungi generally appearing to be more important for soil aggregation than soil animals. Bacteria contribute strongly to both macro- and microaggregates while fungi strongly affect macroaggregation. Motility, body size and population density were important traits modulating effect sizes. Investigating species interactions across major taxonomic groups revealed their beneficial impact on soil aggregation. At the broadest level, our results highlight the need to consider biodiversity as a causal factor in soil aggregation. This will require a shift from the current management and physicochemical perspective to an approach that fully embraces the significance of soil organisms, their diversity and interactions. PMID- 29038472 TI - Phage-assisted continuous evolution of proteases with altered substrate specificity. AB - Here we perform phage-assisted continuous evolution (PACE) of TEV protease, which canonically cleaves ENLYFQS, to cleave a very different target sequence, HPLVGHM, that is present in human IL-23. A protease emerging from ~2500 generations of PACE contains 20 non-silent mutations, cleaves human IL-23 at the target peptide bond, and when pre-mixed with IL-23 in primary cultures of murine splenocytes inhibits IL-23-mediated immune signaling. We characterize the substrate specificity of this evolved enzyme, revealing shifted and broadened specificity changes at the six positions in which the target amino acid sequence differed. Mutational dissection and additional protease specificity profiling reveal the molecular basis of some of these changes. This work establishes the capability of changing the substrate specificity of a protease at many positions in a practical time scale and provides a foundation for the development of custom proteases that catalytically alter or destroy target proteins for biotechnological and therapeutic applications.Proteases are promising therapeutics to treat diseases such as hemophilia which are due to endogenous protease deficiency. Here the authors use phage-assisted continuous evolution to evolve a variant TEV protease with altered target peptide sequence specificities. PMID- 29038474 TI - A shared Runx1-bound Zbtb16 enhancer directs innate and innate-like lymphoid lineage development. AB - Zbtb16-encoded PLZF is a signature transcription factor (TF) that directs the acquisition of T-helper effector programs during the development of multiple innate lymphocyte lineages, including natural killer T cell, innate lymphoid cell, mucosal-associated invariant T cell and gammadelta lineages. PLZF is also essential in osteoblast and spermatogonial development. How Zbtb16 itself is regulated in different lineages is incompletely understood. Here, by systematic CRISPR/Cas9-assisted deletions of chromatin accessible regions within the Zbtb16 locus in mouse, we identify a critical enhancer controlling PLZF expression exclusively in innate lymphoid lineages. Multiple sites within this enhancer express canonical motifs for the TF Runx1, which is essential for the development of these lineages. Notably, some regulatory sites control the kinetic rather than the overall level of PLZF expression. Thus, our comprehensive, unbiased analysis of regulatory elements in vivo reveals critical mechanisms of Zbtb16 regulation shared between innate and innate-like lymphoid lineages. Zbtb16-encoded transcription factor PLZF directs the differentiation of multiple innate and innate-like cell lineages, but how Zbtb16 itself is regulated remains unclear. Here the authors show, using CRISPR gene editing, ATAC-seq and ChIP-seq, that specific Runx1-bound enhancer elements critically modulate lineage-dependent expressions of PLZF. PMID- 29038475 TI - Climate and permafrost effects on the chemistry and ecosystems of High Arctic Lakes. AB - Permafrost exerts an important control over hydrological processes in Arctic landscapes and lakes. Recent warming and summer precipitation has the potential to alter water availability and quality in this environment through thermal perturbation of near surface permafrost and increased mobility of previously frozen solutes to Arctic freshwaters. We present a unique thirteen-year record (2003-16) of the physiochemical properties of two High Arctic lakes and show that the concentration of major ions, especially SO42-, has rapidly increased up to 500% since 2008. This hydrochemical change has occurred synchronously in both lakes and ionic ratio changes in the lakes indicate that the source for the SO42- is compositionally similar to terrestrial sources arising from permafrost thaw. Record summer temperatures during this period (2003-16) following over 100 years of warming and summer precipitation in this polar desert environment provide likely mechanisms for this rapid chemical change. An abrupt limnological change is also reflected in the otolith chemistry and improved relative condition of resident Arctic char (Salvelinus alpinus) and increased diatom diversity point to a positive ecosystem response during the same period. PMID- 29038476 TI - Pro-angiogenic effect of RANTES-loaded polysaccharide-based microparticles for a mouse ischemia therapy. AB - Peripheral arterial disease results from the chronic obstruction of arteries leading to critical hindlimb ischemia. The aim was to develop a new therapeutic strategy of revascularization by using biodegradable and biocompatible polysaccharides-based microparticles (MP) to treat the mouse hindlimb ischemia. For this purpose, we deliver the pro-angiogenic chemokine Regulated upon Activation, Normal T-cell Expressed and Secreted (RANTES)/CCL5 in the mouse ischemic hindlimb, in solution or incorporated into polysaccharide-based microparticles. We demonstrate that RANTES-loaded microparticles improve the clinical score, induce the revascularization and the muscle regeneration in injured mice limb. To decipher the mechanisms underlying RANTES effects in vivo, we demonstrate that RANTES increases the spreading, the migration of human endothelial progenitor cells (EPC) and the formation of vascular network. The main receptors of RANTES i.e. CCR5, syndecan-4 and CD44 expressed at endothelial progenitor cell surface are involved in RANTES-induced in vitro biological effects on EPC. By using two RANTES mutants, [E66A]-RANTES with impaired ability to oligomerize, and [44AANA47]-RANTES mutated in the main RANTES glycosaminoglycan binding site, we demonstrate that both chemokine oligomerization and binding site to glycosaminoglycans are essential for RANTES induced angiogenesis in vitro. Herein we improved the muscle regeneration and revascularization after RANTES-loaded MP local injection in mice hindlimb ischemia. PMID- 29038478 TI - Herbivores increase the global availability of nutrients over millions of years. AB - Can the presence of herbivores increase global nutrient availability? Animals disperse vital nutrients through ecosystems, increasing the spatial availability of these nutrients. Large herbivores are especially important for the dispersal of vital nutrients due to their long food passage times and day ranges, and large herbivores from past periods (the Pleistocene) may have increased nutrient concentrations on the continental scale. However, such results have been demonstrated theoretically but not yet empirically. Models suggest that the Pennsylvanian subperiod (323-299 million years ago), with no tetrapod terrestrial herbivores, would have had fewer, less-well-distributed nutrients than the Cretaceous period (145-66 million years ago), with the largest terrestrial herbivores ever-the sauropods. Here, I show that these models are supported empirically by remnant plant material (coal deposits) from the Cretaceous (N = 680), which had significantly (P < 0.00001) increased concentrations (136%) and decreased spatial heterogeneity (22%) of plant-important rock-derived nutrients compared with the Pennsylvanian subperiod (N = 4,996). Non-biotic physical processes, such as weathering rates, cannot account for such differences, because aluminium-a nutrient not important for plants and animals, but weathered in a similar manner to the above elements-showed no significant difference between the two periods, suggesting that these large changes were driven by plant-herbivore interactions. Populations of large wild herbivores are currently at historical lows; therefore, we are potentially losing a key ecosystem service. PMID- 29038477 TI - Long non-coding HCG18 promotes intervertebral disc degeneration by sponging miR 146a-5p and regulating TRAF6 expression. AB - Intervertebral disc degeneration (IDD) is associated with the deterioration of nucleus pulposus (NP) cells due to hypertrophic differentiation and calcification. Emerging studies have shown that long noncoding RNAs (lncRNAs) play critical roles in the development of IDD. Using bioinformatics prediction, we hereby sought to identify the lncRNAs that regulate the expression of microRNA 146a-5p (miR-146a-5p), an IDD-related inflammatory factor. Our study demonstrated that lncRNA HCG18 acted as an endogenous sponge to down-regulate miR-146a-5p expression in the NP cells by directly binding to miR-146a-5p. In addition, HCG18 expression was up-regulated in the patients with IDD, bulging or herniated discs, and its level was positively correlated with the disc degeneration grade. In vitro, miR-146a-5p up-regulation HCG18 retarded the growth of NP cells by decreasing S phase of cell cycle, inducing cell apoptosis, recruitment of macrophages and hypercalcification. Conversely, down-regulation of miR-146a-5p exerted opposite effects. Furthermore, we elucidated that TRAF6, a target gene by miR-146a-5p, was modulated by HCG18 expression. Restore of TRAF6 expression by virus infection reserved the effect of HCG18 on the NP cells. Altogether, our data indicated that HCG18 suppressed the growth of NP cells and promoted the IDD development via the miR-146a-5p/TRAF6/NFkappaB axis. PMID- 29038479 TI - Probing ligand recognition of the opioid pan antagonist AT-076 at nociceptin, kappa, mu, and delta opioid receptors through structure-activity relationships. AB - Few opioid ligands binding to the three classic opioid receptor subtypes, mu, kappa and delta, have high affinity at the fourth opioid receptor, the nociceptin/orphanin FQ receptor (NOP). We recently reported the discovery of AT 076 (1), (R)-7-hydroxy-N-((S)-1-(4-(3-hydroxyphenyl)piperidin-1-yl)-3-methylbutan 2-yl)-1,2,3,4-tetrahydroisoquinoline-3-carboxamide, a pan antagonist with nanomolar affinity for all four subtypes. Since AT-076 binds with high affinity at all four subtypes, we conducted a structure-activity relationship (SAR) study to probe ligand recognition features important for pan opioid receptor activity, using chemical modifications of key pharmacophoric groups. SAR analysis of the resulting analogs suggests that for the NOP receptor, the entire AT-076 scaffold is crucial for high binding affinity, but the binding mode is likely different from that of NOP antagonists C-24 and SB-612111 bound in the NOP crystal structure. On the other hand, modifications of the 3-hydroxyphenyl pharmacophore, but not the 7-hydroxy Tic pharmacophore, are better tolerated at kappa and mu receptors and yield very high affinity multifunctional (e.g. 12) or highly selective (e.g. 16) kappa ligands. With the availability of the opioid receptor crystal structures, our SAR analysis of the common chemotype of AT-076 suggests rational approaches to modulate binding selectivity, enabling the design of multifunctional or selective opioid ligands from such scaffolds. PMID- 29038480 TI - Parallels between DNA and collagen - comparing elastic models of the double and triple helix. AB - Multi-stranded helices are widespread in nature. The interplay of polymeric properties with biological function is seldom discussed. This study probes analogies between structural and mechanical properties of collagen and DNA. We modeled collagen with Eulerian rotational and translational parameters of adjacent rungs in the triple-helix ladder and developed statistical potentials by extracting the dispersion of the parameters from a database of atomic-resolution structures. The resulting elastic model provides a common quantitative way to describe collagen deformations upon interacting with integrins or matrix metalloproteinase and DNA deformations upon protein binding. On a larger scale, deformations in Type I collagen vary with a periodicity consistent with the D periodic banding of higher-order fibers assemblies. This indicates that morphologies of natural higher-order collagen packing might be rooted in the characteristic deformation patterns. PMID- 29038481 TI - The social and cultural roots of whale and dolphin brains. AB - Encephalization, or brain expansion, underpins humans' sophisticated social cognition, including language, joint attention, shared goals, teaching, consensus decision-making and empathy. These abilities promote and stabilize cooperative social interactions, and have allowed us to create a 'cognitive' or 'cultural' niche and colonize almost every terrestrial ecosystem. Cetaceans (whales and dolphins) also have exceptionally large and anatomically sophisticated brains. Here, by evaluating a comprehensive database of brain size, social structures and cultural behaviours across cetacean species, we ask whether cetacean brains are similarly associated with a marine cultural niche. We show that cetacean encephalization is predicted by both social structure and by a quadratic relationship with group size. Moreover, brain size predicts the breadth of social and cultural behaviours, as well as ecological factors (diversity of prey types and to a lesser extent latitudinal range). The apparent coevolution of brains, social structure and behavioural richness of marine mammals provides a unique and striking parallel to the large brains and hyper-sociality of humans and other primates. Our results suggest that cetacean social cognition might similarly have arisen to provide the capacity to learn and use a diverse set of behavioural strategies in response to the challenges of social living. PMID- 29038482 TI - Selective binding of choline by a phosphate-coordination-based triple helicate featuring an aromatic box. AB - In nature, proteins have evolved sophisticated cavities tailored for capturing target guests selectively among competitors of similar size, shape, and charge. The fundamental principles guiding the molecular recognition, such as self assembly and complementarity, have inspired the development of biomimetic receptors. In the current work, we report a self-assembled triple anion helicate (host 2) featuring a cavity resembling that of the choline-binding protein ChoX, as revealed by crystal and density functional theory (DFT)-optimized structures, which binds choline in a unique dual-site-binding mode. This similarity in structure leads to a similarly high selectivity of host 2 for choline over its derivatives, as demonstrated by the NMR and fluorescence competition experiments. Furthermore, host 2 is able to act as a fluorescence displacement sensor for discriminating choline, acetylcholine, L-carnitine, and glycine betaine effectively.The choline-binding protein ChoX exhibits a synergistic dual-site binding mode that allows it to discriminate choline over structural analogues. Here, the authors design a biomimetic triple anion helicate receptor whose selectivity for choline arises from a similar binding mechanism. PMID- 29038483 TI - Quantitative microglia analyses reveal diverse morphologic responses in the rat cortex after diffuse brain injury. AB - Determining regions of altered brain physiology after diffuse brain injury is challenging. Microglia, brain immune cells with ramified and dynamically moving processes, constantly surveil the parenchyma for dysfunction which, when present, results in a changed morphology. Our purpose was to define the spatiotemporal changes in microglia morphology over 28 days following rat midline fluid percussion injury (mFPI) as a first step in exploiting microglia morphology to reflect altered brain physiology. Microglia morphology was quantified from histological sections using Image J skeleton and fractal analysis procedures at three time points and in three regions post-mFPI: impact site, primary somatosensory cortex barrel field (S1BF), and a remote region. Microglia ramification (process length/cell and endpoints/cell) decreased in the impact and S1BF but not the remote region (p < 0.05). Microglia complexity was decreased in the S1BF (p = 0.003) and increased in the remote region (p < 0.02). Rod-shaped microglia were present in the S1BF and had a 1.8:1.0 length:width ratio. An in depth quantitative morphologic analysis revealed diverse and widespread changes to microglia morphology in the cortex post-mFPI. Due to their close link to neuronal function, changes in microglia morphology, summarized in this study, likely reflect altered physiology with diverse and widespread impact on neuronal and circuit function. PMID- 29038484 TI - Mechanical on-chip microwave circulator. AB - Nonreciprocal circuit elements form an integral part of modern measurement and communication systems. Mathematically they require breaking of time-reversal symmetry, typically achieved using magnetic materials and more recently using the quantum Hall effect, parametric permittivity modulation or Josephson nonlinearities. Here we demonstrate an on-chip magnetic-free circulator based on reservoir-engineered electromechanic interactions. Directional circulation is achieved with controlled phase-sensitive interference of six distinct electro mechanical signal conversion paths. The presented circulator is compact, its silicon-on-insulator platform is compatible with both superconducting qubits and silicon photonics, and its noise performance is close to the quantum limit. With a high dynamic range, a tunable bandwidth of up to 30 MHz and an in situ reconfigurability as beam splitter or wavelength converter, it could pave the way for superconducting qubit processors with multiplexed on-chip signal processing and readout.Nonreciprocal optical elements often require magnetic materials in order to break time-reversal symmetry. Here, Barzanjeh et al. demonstrate a magnetic-free on-chip microwave circulator that utilizes the interference from six electro-mechanical signal paths. PMID- 29038485 TI - A versatile pretargeting approach for tumour-selective delivery and activation of TNF superfamily members. AB - TNFR superfamily (TNFRSF) members have important immunoregulatory functions and are of clear interest for cancer immunotherapy. Various TNFRSF agonists have been clinically evaluated, but have met with limited efficacy and/or toxicity. Recent insights indicate that 'first-generation' TNFRSF agonists lack efficacy as they do not effectively cross-link their corresponding receptor. Reversely, ubiquitous TNFRSF receptor(s) cross-linking by CD40 and Fas agonistic antibodies resulted in dose-limiting liver toxicity. To overcome these issues, we developed a novel pretargeting strategy exploiting recombinant fusion proteins in which a soluble form of TRAIL, FasL or CD40L is genetically fused to a high-affinity anti fluorescein scFv antibody fragment (scFvFITC). Fusion proteins scFvFITC:sTRAIL and scFvFITC:sFasL induced potent target antigen-restricted apoptosis in a panel of cancer lines and in primary patient-derived cancer cells, but only when pretargeted with a relevant FITC-labelled antitumour antibody. In a similar pretargeting setting, fusion protein scFvFITC:sCD40L promoted tumour-directed maturation of immature monocyte-derived dendritic cells (iDCs). This novel tumour selective pretargeting approach may be used to improve efficacy and/or reduce possible off-target toxicity of TNFSF ligands for cancer immunotherapy. PMID- 29038486 TI - Experimental investigation on the geometry of GHZ states. AB - Greenberger-Horne-Zeilinger (GHZ) states and their mixtures exhibit fascinating properties. A complete basis of GHZ states can be constructed by properly choosing local basis rotations. We demonstrate this experimentally for the Hilbert space [Formula: see text] by entangling two photons in polarization and orbital angular momentum. Mixing GHZ states unmasks different entanglement features based on their particular local geometrical connectedness. In particular, a specific GHZ state in a complete orthonormal basis has a "twin" GHZ state for which equally mixing leads to full separability in opposition to any other basis-state. Exploiting these local geometrical relations provides a toolbox for generating specific types of multipartite entanglement, each providing different benefits in outperforming classical devices. Our experiment investigates these GHZ's properties exploiting the HMGH framework which allows us to study the geometry for the different depths of entanglement in our system and showing a good stability and fidelity thus admitting a scaling in degrees of freedom and advanced operational manipulations. PMID- 29038487 TI - The microbiome beyond the horizon of ecological and evolutionary theory. AB - The ecological and evolutionary study of community formation, diversity, and stability is rooted in general theory and reinforced by decades of system specific empirical work. Deploying these ideas to study the assembly, complexity, and dynamics of microbial communities living in and on eukaryotes has proved seductive, but challenging. The success of this research endeavour depends on our capacity to observe and characterize the distributions, abundances, and functional traits of microbiota, representing an array of technical and analytical challenges. Furthermore, a number of unique characteristics of microbial species, such as horizontal gene transfer, the production of public goods, toxin and antibiotic production, rapid evolution, and feedbacks between the microbiome and its host, are not easily accommodated by current ecological and evolutionary theory. Here we highlight potential pitfalls in the application of existing theoretical tools without careful consideration of the unique complexities of the microbiome, focusing particularly on the issue of human health, and anchoring our discussion in existing empirical evidence. PMID- 29038489 TI - Controlling the Quantum State with a time varying potential. AB - The problem of controlling the quantum state of a system is investigated using a time varying potential. As a concrete example we study the problem of a particle in a box with a periodically oscillating infinite square-well potential, from which we obtain results that can be applied to systems with periodically oscillating boundary conditions. We derive an analytic expression for the frequencies of resonance between states, and against standard intuition, we show how to use this behavior to control the quantum state of the system at will. In particular, we offer as an example the transition from the ground state to the first excited state of the square well potential. At first sight, it may be counter intuitive that we can control the state of such a quantum Hamiltonian, as the Schrodinger equation conserves the norm of the wave function. In this manuscript, we show how that can be achieved. PMID- 29038490 TI - A doping-less junction-formation mechanism between n-silicon and an atomically thin boron layer. AB - The interest in nanostructures of silicon and its dopants has significantly increased. We report the creation of an ultimately-shallow junction at the surface of n-type silicon with excellent electrical and optical characteristics made by depositing an atomically thin boron layer at a relatively low temperature where no doping of silicon is expected. The presented experimental results and simulations of the ab initio quantum mechanics molecular dynamics prove that the structure of this new type of junction differs from all other known rectifying junctions at this time. An analysis of the junction formation has led to the conclusion that the chemical interaction between the surface atoms of crystalline silicon and the first atomic layer of the as-deposited amorphous boron is the dominant factor leading to the formation of a depletion zone in the crystalline silicon which originates from the surface. The simulation results show a very strong electric field across the c-Si/a-B interface systems where the charge transfer occurs mainly from the interface Si atoms to the neighboring B atoms. This electric field appears to be responsible for the creation of a depletion zone in the n-silicon resulting in a rectifying junction-formation between the n silicon and the atomically thin boron layer. PMID- 29038488 TI - MCM2-regulated functional networks in lung cancer by multi-dimensional proteomic approach. AB - DNA replication control is vital for maintaining genome stability and the cell cycle, perhaps most notably during cell division. Malignancies often exhibit defective minichromosome maintenance protein 2 (MCM2), a cancer proliferation biomarker that serves as a licensing factor in the initiation of DNA replication. MCM2 is also known to be one of the ATPase active sites that facilitates conformational changes and drives DNA unwinding at the origin of DNA replication. However, the biological networks of MCM2 in lung cancer cells via protein phosphorylation remain unmapped. The RNA-seq datasets from The Cancer Genome Atlas (TCGA) revealed that MCM2 overexpression is correlated with poor survival rate in lung cancer patients. To uncover MCM2-regulated functional networks in lung cancer, we performed multi-dimensional proteomic approach by integrating analysis of the phosphoproteome and proteome, and identified a total of 2361 phosphorylation sites on 753 phosphoproteins, and 4672 proteins. We found that the deregulation of MCM2 is involved in lung cancer cell proliferation, the cell cycle, and migration. Furthermore, HMGA1S99 phosphorylation was found to be differentially expressed under MCM2 perturbation in opposite directions, and plays an important role in regulating lung cancer cell proliferation. This study therefore enhances our capacity to therapeutically target cancer-specific phosphoproteins. PMID- 29038491 TI - Understanding activity and selectivity of metal-nitrogen-doped carbon catalysts for electrochemical reduction of CO2. AB - Direct electrochemical reduction of CO2 to fuels and chemicals using renewable electricity has attracted significant attention partly due to the fundamental challenges related to reactivity and selectivity, and partly due to its importance for industrial CO2-consuming gas diffusion cathodes. Here, we present advances in the understanding of trends in the CO2 to CO electrocatalysis of metal- and nitrogen-doped porous carbons containing catalytically active M-N x moieties (M = Mn, Fe, Co, Ni, Cu). We investigate their intrinsic catalytic reactivity, CO turnover frequencies, CO faradaic efficiencies and demonstrate that Fe-N-C and especially Ni-N-C catalysts rival Au- and Ag-based catalysts. We model the catalytically active M-N x moieties using density functional theory and correlate the theoretical binding energies with the experiments to give reactivity-selectivity descriptors. This gives an atomic-scale mechanistic understanding of potential-dependent CO and hydrocarbon selectivity from the M-N x moieties and it provides predictive guidelines for the rational design of selective carbon-based CO2 reduction catalysts.Inexpensive and selective electrocatalysts for CO2 reduction hold promise for sustainable fuel production. Here, the authors report N-coordinated, non-noble metal-doped porous carbons as efficient and selective electrocatalysts for CO2 to CO conversion. PMID- 29038492 TI - Correlation of Plasma EGF with Striatal Dopamine Transporter Availability in Healthy Subjects. AB - We aimed to evaluate the association between plasma epidermal growth factor (EGF) and the availability of dopamine transporter (DAT) measured from 123I-FP-CIT single-photon emission computed tomography in healthy controls in this study. Volume of interest template was applied to measure specific binding ratios (SBRs) of caudate nucleus, putamen, and striatum representing DAT availability as follows; SBR = (target- cerebellum)/cerebellum. Plasma EGF was negatively correlated with the availabilities of both caudate nucleus (r = -0.261, p = 0.019), and putamen (r = -0.341, p = 0.002). After dividing subjects according to Apo E genotyping, DAT availability of caudate nucleus of Apo e4 non-carriers (n = 60) showed the positive correlation with cerebrospinal fluid (CSF) alpha synuclein (r = 0.264, p = 0.042). Plasma EGF was negatively correlated with DAT availabilities of Apo e4 non-carriers. Further studies are needed to clarify underlying mechanisms of this phenomenon. PMID- 29038493 TI - Flexible parental care: Uniparental incubation in biparentally incubating shorebirds. AB - The relative investment of females and males into parental care might depend on the population's adult sex-ratio. For example, all else being equal, males should be the more caring sex if the sex-ratio is male biased. Whether such outcomes are evolutionary fixed (i.e. related to the species' typical sex-ratio) or whether they arise through flexible responses of individuals to the current population sex-ratio remains unclear. Nevertheless, a flexible response might be limited by the evolutionary history of the species, because one sex may have lost the ability to care or because a single parent cannot successfully raise the brood. Here, we demonstrate that after the disappearance of one parent, individuals from 8 out of 15 biparentally incubating shorebird species were able to incubate uniparentally for 1-19 days (median = 3, N = 69). Moreover, their daily incubation rhythm often resembled that of obligatory uniparental shorebird species. Although it has been suggested that in some biparental shorebirds females desert their brood after hatching, we found both sexes incubating uniparentally. Strikingly, in 27% of uniparentally incubated clutches - from 5 species - we documented successful hatching. Our data thus reveal the potential for a flexible switch from biparental to uniparental care. PMID- 29038494 TI - A Study of the Brain Abnormalities of Post-Stroke Depression in Frontal Lobe Lesion. AB - Post stroke depression (PSD) is a serious complication of stroke. Brain imaging is an important method of studying the mechanism of PSD. However, few studies have focused on the single lesion location. The aim of this study was to investigate the brain mechanism of frontal lobe PSD using combined voxel-based morphometry (VBM) and functional magnetic resonance imaging (fMRI). In total, 30 first-time ischemic frontal lobe stroke patients underwent T1 weighted MRI and resting-state fMRI scans. Clinical assessments included the 24-item Hamilton Rating Scale for Depression, the National Institutes of Health Stroke Scale, and the Mini-Mental State Examination. In our result, decreased gray matter (GM) volume in patients was observed in the prefrontal cortex, limbic system and motor cortex. The anterior cingulate cortex, selected as a seed to perform connectivity analyses, showed a greatly decreased functional connectivity with the prefrontal cortex, cingulate cortex, and motor cortex, but had an increased functional connectivity with the hippocampus gyrus, parahippocampa gyrus, insular, and amygdala. Stroke lesion location reduces excitability of brain areas in the ipsilateral brain. PSD affects mood through the brain network of the prefrontal limbic circuit. Some brain networks, including motor cortex and the default mode network, show other characteristics of PSD brain network. PMID- 29038495 TI - A method to determine pharmacokinetic parameters based on andante constant-rate intravenous infusion. AB - On account of the disturbance from the distribution phase, the concentration-time curve of drugs cannot fully reflect the characteristics of elimination, and thus, it is difficult for present methods to obtain ideal pharmacokinetic parameters. This paper presents a method to determine pharmacokinetic parameters based on an andante constant-rate intravenous infusion. A mathematical model of the constant rate intravenous infusion combined with the elimination of first-order kinetics was established. During infusion, the accumulation tendency of drugs was deduced as [Formula: see text] using the principle of calculus. Then, the method to determine the pharmacokinetic parameters was summed up. After collecting the blood drug concentration (C t ) -time (t) data from a constant-rate (v) infusion period, an exponential regression analysis was conducted to obtain the elimination rate constant (K) and plateau concentration (C ss ). Then, the half life (t 1/2 ), apparent volume of distribution (V d ) and clearance rate (CL) were calculated based on the equations, t 1/2 = 0.693/K, V d = (v/K)/C ss and CL = v/C ss , respectively. In addition, an application example of cimetidine in a beagle dog was used to demonstrate the implementation process of the method. PMID- 29038497 TI - Non-steroidal anti-inflammatory drug delays corneal wound healing by reducing production of 12-hydroxyheptadecatrienoic acid, a ligand for leukotriene B4 receptor 2. AB - Non-steroidal anti-inflammatory drugs (NSAIDs) are widely used to reduce inflammation by suppressing cyclooxygenases (COXs). NSAID eye drops are frequently prescribed after ocular surgery to reduce inflammation and pain, but this treatment has clinically significant side effects, including corneal ulcer and perforation. The molecular mechanisms underlying these side effects remain unknown. Recently, the COX product 12(S)-hydroxyheptadeca-5Z,8E,10E-trienoic acid (12-HHT) was identified as an endogenous ligand for leukotriene B4 receptor 2 (BLT2), which is important in maintenance of epithelial homeostasis. We hypothesized that NSAID-dependent corneal damage is caused by reduced production of 12-HHT. Diclofenac eye drops decreased the abundance of downstream products of COX and delayed corneal wound healing in BALB/c mice. Expression of BLT2 was observed in murine ocular tissues including cornea, and in human corneal epithelial cell line and human primary corneal epithelial cells. In BLT2-knockout mice, corneal wound healing was delayed, but the diclofenac-dependent delay in corneal wound healing disappeared. 12-HHT accelerated wound closure both in BLT2 transfected corneal cell line and human primary corneal epithelial cells. Thus, our results reveal that NSAIDs delay corneal wound healing by inhibiting 12-HHT production, and suggest that stimulation of the 12-HHT/BLT2 axis represents a novel therapeutic approach to corneal wound healing. PMID- 29038496 TI - The Hsp70 homolog Ssb affects ribosome biogenesis via the TORC1-Sch9 signaling pathway. AB - The Hsp70 Ssb serves a dual role in de novo protein folding and ribosome biogenesis; however, the mechanism by which Ssb affects ribosome production is unclear. Here we establish that Ssb is causally linked to the regulation of ribosome biogenesis via the TORC1-Sch9 signaling pathway. Ssb is bound to Sch9 posttranslationally and required for the TORC1-dependent phosphorylation of Sch9 at T737. Also, Sch9 lacking phosphorylation at T737 displays significantly reduced kinase activity with respect to targets involved in the regulation of ribosome biogenesis. The absence of either Ssb or Sch9 causes enhanced ribosome aggregation. Particularly with respect to proper assembly of the small ribosomal subunit, SSB and SCH9 display strong positive genetic interaction. In combination, the data indicate that Ssb promotes ribosome biogenesis not only via cotranslational protein folding, but also posttranslationally via interaction with natively folded Sch9, facilitating access of the upstream kinase TORC1 to Sch9-T737.The yeast Hsp70 homolog Ssb is a chaperone that binds translating ribosomes where it is thought to function primarily by promoting nascent peptide folding. Here the authors find that the ribosome biogenesis defect associated with the loss of Ssb is attributable to a specific disruption in TORC1 signaling rather than defects in ribosomal protein folding. PMID- 29038498 TI - Environmental and behavioral changes may influence the exposure of an Arctic apex predator to pathogens and contaminants. AB - Recent decline of sea ice habitat has coincided with increased use of land by polar bears (Ursus maritimus) from the southern Beaufort Sea (SB), which may alter the risks of exposure to pathogens and contaminants. We assayed blood samples from SB polar bears to assess prior exposure to the pathogens Brucella spp., Toxoplasma gondii, Coxiella burnetii, Francisella tularensis, and Neospora caninum, estimate concentrations of persistent organic pollutants (POPs), and evaluate risk factors associated with exposure to pathogens and POPs. We found that seroprevalence of Brucella spp. and T. gondii antibodies likely increased through time, and provide the first evidence of exposure of polar bears to C. burnetii, N. caninum, and F. tularensis. Additionally, the odds of exposure to T. gondii were greater for bears that used land than for bears that remained on the sea ice during summer and fall, while mean concentrations of the POP chlordane (SigmaCHL) were lower for land-based bears. Changes in polar bear behavior brought about by climate-induced modifications to the Arctic marine ecosystem may increase exposure risk to certain pathogens and alter contaminant exposure pathways. PMID- 29038499 TI - Replacing conventional decontamination of hatching eggs with a natural defense strategy based on antimicrobial, volatile pyrazines. AB - The treatment of hatching eggs relies on classic yet environmentally harmful decontamination methods such as formaldehyde fumigation. We evaluated bacteria derived volatiles as a replacement within a fundamentally novel approach based on volatile organic compounds (VOCs), which are naturally involved in microbial communication and antagonism due to their high antimicrobial efficiency. Pyrazine (5-isobutyl-2,3-dimethylpyrazine) was applied passively and actively in prototypes of a pre-industry-scale utilization. Altogether, pyrazine decontamination rates of up to 99.6% were observed, which is comparable to formaldehyde fumigation. While active evaporation was highly efficient in all experiments, passive treatment showed reducing effects in two of four tested groups only. These results were confirmed by visualization using LIVE/DEAD staining microscopy. The natural egg shell microbiome was characterized by an unexpected bacterial diversity of Pseudomonadales, Enterobacteriales, Sphingomonadales, Streptophyta, Burkholderiales, Actinomycetales, Xanthomonadales, Rhizobiales, Bacillales, Clostridiales, Lactobacillales, and Flavobacteriales members. Interestingly, we found that especially low pyrazine concentrations lead to a microbiome shift, which can be explained by varying antimicrobial effects on different microorganisms. Micrococcus spp., which are linked to embryonic death and reduced hatchability, was found to be highly sensitive to pyrazines. Taken together, pyrazine application was shown to be a promising, environmentally friendly alternative for fumigation treatments of hatchery eggs. PMID- 29038500 TI - Role of Mast Cells in clearance of Leishmania through extracellular trap formation. AB - Mast Cells (MCs) are one of the first immune cells encountered by invading pathogens. Their presence in large numbers in the superficial dermis, where Leishmania is encountered, suggests that they may play a critical role in immune responses to Leishmania. In this study the interactions of Leishmania donovani, the causative agent of visceral Leishmaniasis, and Leishmania tropica, the causative agent of cutaneous Leishmaniasis with MCs were studied. Co-culture of Leishmania with Peritoneal Mast Cells (PMCs) from BALB/c mice and Rat Basophilic Leukaemia (RBL-2H3) MCs led to significant killing of L. tropica and to a lesser extent of L. donovani. Also, while there was significant uptake of L. tropica by MCs, L. donovani was not phagocytosed. There was significant generation of Reactive Oxygen Species (ROS) by MCs on co-culture with these species of Leishmania which may contribute to their clearance. Interactions of MCs with Leishmania led to generation of MC extracellular traps comprising of DNA, histones and tryptase probably to ensnare these pathogens. These results clearly establish that MCs may contribute to host defences to Leishmania in a differential manner, by actively taking up these pathogens, and also by mounting effector responses for their clearance by extracellular means. PMID- 29038501 TI - Effects of charge-modifying mutations in histone H2A alpha3-domain on nucleosome stability assessed by single-pair FRET and MD simulations. AB - Nucleosomes are important for chromatin compaction and gene regulation; their integrity depends crucially on the structural properties of the histone tails. Recent all-atom molecular dynamics simulations revealed that removal of the N terminal tails of histone H3, known to destabilize nucleosomes, causes a rearrangement of two arginines of histone H2A, namely R81 and R88 by altering the electrostatic environment of the H2A alpha3 domain. Whether this rearrangement is the cause or the effect of decreased stability, is unclear. Here, we emulate the altered electrostatic environment that was found after H3 tail clipping through charge-modifying mutations to decouple its impact on intranucleosomal interactions from that of the histone tails. Forster resonance energy transfer experiments on recombinant nucleosomes and all-atom molecular dynamics simulations reveal a compensatory role of those amino acids in nucleosome stability. The simulations indicate a weakened interface between H2A-H2B dimers and the (H3-H4)2 tetramer, as well as between dimers and DNA. These findings agree with the experimental observations of position and charge dependent decreased nucleosome stability induced by the introduced mutations. This work highlights the importance of the H2A alpha3 domain and suggests allosteric effects between this domain and the outer DNA gyre as well as the H3 N-terminal tail. PMID- 29038502 TI - Three-dimensional Layered Water-Soluble Cellulose Acetate/Polyacrylamide Composites with Ultrahigh Ductility and Stretchability. AB - Water-soluble cellulose acetate (WSCA), one of the most important cellulose derivatives, possesses biocompatibility, biodegradability and broad chemical modifying capacities. In this work, highly polymerized WSCA was firstly synthesized and used as cross-linker to fabricate highly ductile, tough and resilient WSCA/polyacrylamide (PAM) composite hydrogels. The results showed that the WSCA/PAM nanocomposite hydrogels exhibited extraordinary toughness and ductility with a tensile strength of 297 kPa and elongation at break of about 4020%. The enhancement of mechanical properties and stretchability were due to the synergistic effect from the hydrogen bonding and physical entanglement between the composite matrixes. Under stretching conditions, hydrogen bonds and the dense entanglement between WSCA chains and PAM could dynamically break and rearrange to dissipate energy. At the same time, the filaments of PAM embedded in layered WSCA matrix became unfolded or fractured to dissipate energy and maintained the conformation of hydrogels. It was envisioned that the introduction of WSCA into polymeric matrix would generate a facile method to fabricate multiple layered hybrid hydrogel network and significantly widen the WSCA applications in the preparation of high performance supramolecular systems. PMID- 29038503 TI - Gastric acid suppression promotes alcoholic liver disease by inducing overgrowth of intestinal Enterococcus. AB - Chronic liver disease is rising in western countries and liver cirrhosis is the 12th leading cause of death worldwide. Simultaneously, use of gastric acid suppressive medications is increasing. Here, we show that proton pump inhibitors promote progression of alcoholic liver disease, non-alcoholic fatty liver disease, and non-alcoholic steatohepatitis in mice by increasing numbers of intestinal Enterococcus spp. Translocating enterococci lead to hepatic inflammation and hepatocyte death. Expansion of intestinal Enterococcus faecalis is sufficient to exacerbate ethanol-induced liver disease in mice. Proton pump inhibitor use increases the risk of developing alcoholic liver disease among alcohol-dependent patients. Reduction of gastric acid secretion therefore appears to promote overgrowth of intestinal Enterococcus, which promotes liver disease, based on data from mouse models and humans. Recent increases in the use of gastric acid-suppressive medications might contribute to the increasing incidence of chronic liver disease.Proton pump inhibitors (PPIs) reduce gastric acid secretion and modulate gut microbiota composition. Here Llorente et al. show that PPIs induce bacterial overgrowth of enterococci, which, in turn, exacerbate ethanol-induced liver disease both in mice and humans. PMID- 29038504 TI - The contribution of Saccharomyces cerevisiae replicative age to the variations in the levels of Trx2p, Pdr5p, Can1p and Idh isoforms. AB - Asymmetrical division can be a reason for microbial populations heterogeneity. In particular, budding yeast daughter cells are more vulnerable to stresses than the mothers. It was suggested that yeast mother cells could also differ from each other depending on their replicative age. To test this, we measured the levels of Idh1-GFP, Idh2-GFP, Trx2-GFP, Pdr5-GFP and Can1-GFP proteins in cells of the few first, most represented, age cohorts. Pdr5p and Can1p were selected because of the pronounced mother-bud asymmetry for these proteins distributions, Trx2p as indicator of oxidative stress. Isocitrate dehydrogenase subunits Idh1p and Idh2p were assessed because their levels are regulated by mitochondria. We found a small negative correlation between yeast replicative age and Idh1-GFP or Idh2-GFP but not Trx2-GFP levels. Mitochondrial network fragmentation was also confirmed as an early event of replicative aging. No significant difference in the membrane proteins levels Pdr5p and Can1p was found. Moreover, the elder mother cells showed lower coefficient of variation for Pdr5p levels compared to the younger ones and the daughters. Our data suggest that the levels of stress-response proteins Pdr5p and Trx2p in the mother cells are stable during the first few cell cycles regardless of their mother-bud asymmetry. PMID- 29038505 TI - Punctate White Matter Lesions Associated With Altered Brain Development And Adverse Motor Outcome In Preterm Infants. AB - Preterm infants who develop neurodevelopmental impairment do not always have recognized abnormalities on cerebral ultrasound, a modality routinely used to assess prognosis. In a high proportion of infants, MRI detects punctate white matter lesions that are not seen on ultrasonography. To determine the relation of punctate lesions to brain development and early neurodevelopmental outcome we used multimodal brain MRI to study a large cohort of preterm infants. Punctate lesions without other focal cerebral or cerebellar lesions were detected at term equivalent age in 123 (24.3%) (59 male) of the 506 infants, predominantly in the centrum semiovale and corona radiata. Infants with lesions had higher gestational age, birth weight, and less chronic lung disease. Punctate lesions showed a dose dependent relation to abnormalities in white matter microstructure, assessed with tract-based spatial statistics, and reduced thalamic volume (p < 0.0001), and predicted unfavourable motor outcome at a median (range) corrected age of 20.2 (18.4-26.3) months with sensitivity (95% confidence intervals) 71 (43-88) and specificity 72 (69-77). Punctate white matter lesions without associated cerebral lesions are common in preterm infants currently not regarded as at highest risk for cerebral injury, and are associated with widespread neuroanatomical abnormalities and adverse early neurodevelopmental outcome. PMID- 29038506 TI - Publisher Correction: Reassessing apoptosis in plants. AB - In the version of this Perspective originally published, the name of co-author Paul de Figueiredo was incorrect. This has now been corrected. PMID- 29038507 TI - Changes in brain metabolic connectivity underlie autistic-like social deficits in a rat model of autism spectrum disorder. AB - The neurobiological basis of social dysfunction and the high male prevalence in autism spectrum disorder (ASD) remain poorly understood. Although network alterations presumably underlie the development of autistic-like behaviors, a clear pattern of connectivity differences specific to ASD has not yet emerged. Because the heterogeneous nature of ASD hinders investigations in human subjects, we explored brain connectivity in an etiologically homogenous rat model of ASD induced by exposure to valproic acid (VPA) in utero. We performed partial correlation analysis of cross-sectional resting-state 18F-fluorodeoxyglucose positron emission tomography scans from VPA-exposed and control rats to estimate metabolic connectivity and conducted canonical correlation analysis of metabolic activity and behavior scores. VPA-treated rats exhibited impairments in social behaviors, and this difference was more pronounced in male than female rats. Similarly, current analyses revealed sex-specific changes in network connectivity and identified distinct alterations in the distributed metabolic activity patterns associated with autistic-like social deficits. Specifically, diminished activity in the salience network and enhanced activity in a cortico-cerebellar circuit correlated with the severity of social behavioral deficits. Such metabolic connectivity features may represent neurobiological substrates of autistic-like behavior, particularly in males, and may serve as a pathognomonic sign in the VPA rat model of ASD. PMID- 29038509 TI - Optimal [Formula: see text] -symmetric switch features exceptional point. AB - We consider the optimization problem of least energy-cost path in open systems that are described by non-Hermitian Hamiltonians. We apply it to find the optimal gain-loss profile for a non-uniform PT-symmetric coupler performing a binary transfer function. We bring evidence that the gain-loss profile fulfilling this requirement corresponds to a non-conventional situation where light intensity is conserved at every point along the PT-symmetric system. Besides, we find that the optimal profile corresponds to a practically important case of optical switching operation achieved with minimal amount of aggregate amplification level. We show that switching architectures using such type of gain-loss profiles are much more advantageous than conventional uniform PT-symmetric couplers in terms of gain and energy. Furthermore, this type of optimal profile turns out to be robust against fabrication imperfections. This opens new prospects for functional applications of PT-symmetric devices in photonics. PMID- 29038508 TI - Ottogi Inhibits Wnt/beta-catenin Signaling by Regulating Cell Membrane Trafficking of Frizzled8. AB - Wnt signaling controls critical developmental processes including tissue/body patterning. Here we report the identification of a novel regulator of Wnt signaling, OTTOGI (OTG), isolated from a large-scale expression screening of human cDNAs in zebrafish embryos. Overexpression of OTG in zebrafish embryos caused dorso-anteriorized phenotype, inhibited the expression of Wnt target genes, and prevented nuclear accumulation of beta-catenin. Conversely, knockdown of zebrafish otg using specific antisense morpholino promoted nuclear accumulation of beta-catenin and caused ventralization. However, OTG failed to rescue headless-like phenotype induced by inhibition of GSK-3beta activity, suggesting that OTG acts upstream of GSK-3beta. OTG bound specifically to Frizzled8 (Fz8) receptor and caused retention of Fz8 in the endoplasmic reticulum possibly by preventing N-linked glycosylation of Fz8. Taken together, our data indicate that OTG functions as a novel negative regulator of Wnt signaling during development by the modulation of cell surface expression of Fz receptor. PMID- 29038510 TI - Lure-and-Kill Yeast Interfering RNA Larvicides Targeting Neural Genes in the Human Disease Vector Mosquito Aedes aegypti. AB - New mosquito control strategies are vitally needed to address established arthropod-borne infectious diseases such as dengue and yellow fever and emerging diseases such as Zika and chikungunya, all of which are transmitted by the disease vector mosquito Aedes aegypti. In this investigation, Saccharomyces cerevisiae (baker's yeast) was engineered to produce short hairpin RNAs (shRNAs) corresponding to the Aedes aegypti orthologs of fasciculation and elongation protein zeta 2 (fez2) and leukocyte receptor cluster (lrc) member, two genes identified in a recent screen for A. aegypti larval lethal genes. Feeding A. aegypti with the engineered yeasts resulted in silenced target gene expression, disrupted neural development, and highly significant larval mortality. Larvicidal activities were retained following heat inactivation and drying of the yeast into tabular formulations that induced >95% mortality and were found to attract adult females to oviposit. These ready-to-use inactivated yeast interfering RNA tablets may one day facilitate the seamless integration of this new class of lure-and kill species-specific biorational mosquito larvicides into integrated mosquito control programs. PMID- 29038511 TI - Gene delivery of hypoxia-inducible VEGF targeting collagen effectively improves cardiac function after myocardial infarction. AB - Vascular endothelial growth factor (VEGF) plays important roles in improvement of cardiac function following myocardial infarction (MI). However, the lack of a steerable delivery system of VEGF targeting the infarcted myocardium reduces the therapeutic efficacy and safety. Here, we constructed a series of lentiviral vector systems which could express a fusion protein consisted of a collagen binding domain (CBD) and hVEGF (CBDhVEGF), under the control of 5HRE-hCMVmp (5HRE), the hypoxia-inducible promoter consists of five copies of the hypoxia responsive element (HRE) and a human cytomegalovirus minimal promoter (hCMVmp). We demonstrated that 5HRE has the comparable ability to strongly drive CBDhVEGF under hypoxic condition as the ubiquitous CMV promoter, but it can hardly drive target gene under normoxic condition. 5HRE-drived CBDhVEGF specifically bound to type I collagen and significantly promoted the viability of HUVEC cells. Moreover, after injection of lentivirus into heart of mouse with MI, CBDhVEGF was mainly retained in infarcted myocardium where containing rich collagen and significantly improved angiogenesis and cardiac function when compared with hVEGF. Moreover, CBDhVEGF mediated by lentivirus has little leakage from infarcted zone into blood than hVEGF. Taken together, our results indicate that 5HRE-CBDhVEGF lentiviral vector system could improve cardiac function in the collagen-targeting and hypoxia-inducible manners. PMID- 29038512 TI - Levels of exhaled carbon monoxide measured during an intervention program predict 1-year smoking cessation: a retrospective observational cohort study. AB - : Life-long smoking cessation is a critical public health objective, but it is difficult for numerous people. This study aimed to identify the independent predictors of 1-year abstinence in smokers motivated to quit and participating in an intervention program. This 6-year retrospective observational cohort study was conducted in smokers who participated in an intervention program. The exhaled carbon monoxide (CO) was sequentially measured on day 1, 8, 15, and 22 of the intervention program. The primary outcome measure was smoking status at 1 year of follow-up. A total of 162 participants were enrolled and divided into a successful quit group (n = 52) and unsuccessful quit group (n = 110). Using a multivariate logistic regression analysis, we reported that the intention to quit (adjusted odds ratio [AOR] = 1.475, 95% confidence interval [CI] = 1.169-1.862, P value = 0.001), varenicline use (AOR = 3.199, 95% CI = 1.290-7.934, P -value = 0.012) and the exhaled CO level on day 8 (AOR = 0.937, 95% CI = 0.885-0.992, P value = 0.025) independently predicted 1-year smoking cessation. Moreover, the level of exhaled CO < 4.5 parts per million on day 8 significantly predict successful 1-year smoking cessation (area under curve 0.761, sensitivity 88.2%, and specificity 57.8%, P-value < 0.001). These independent predictors including intention to quit, varenicline use, and exhaled CO level on day 8, may help primary care physicians rearrange resources and refine the strategies for intervention programs to achieve a higher rate of long-term smoking cessation. QUITTING SMOKING: IDENTIFYING PREDICTORS OF SUCCESS: Researchers in Korea identify key predictors that pinpoint people most likely to quit smoking successfully during intervention programs. Millions are spent each year supporting people to quit smoking. However, successful quitters remain in the minority, with only 9-35 per cent of those in intervention programs abstaining for at least a year. Hsin-Kuo Ko at Taipei Veterans General Hospital and co workers identified key independent indicators of successful abstinence in 162 smokers attending an intervention program. Alongside having a high intention to quit and using varenicline medication, a potential predictor is having an exhaled carbon monoxide (CO) level of less than 4.5 parts-per-million by day 8 of the course. Exhaled CO is higher in smokers than in non-smokers. Measuring CO levels one week into courses may be a useful biomarker to identify those fully committed to quit. PMID- 29038513 TI - Anomalous Kondo resonance mediated by semiconducting graphene nanoribbons in a molecular heterostructure. AB - Kondo resonances in heterostructures formed by magnetic molecules on a metal require free host electrons to interact with the molecular spin and create delicate many-body states. Unlike graphene, semiconducting graphene nanoribbons do not have free electrons due to their large bandgaps, and thus they should electronically decouple molecules from the metal substrate. Here, we observe unusually well-defined Kondo resonances in magnetic molecules separated from a gold surface by graphene nanoribbons in vertically stacked heterostructures. Surprisingly, the strengths of Kondo resonances for the molecules on graphene nanoribbons appear nearly identical to those directly adsorbed on the top, bridge and threefold hollow sites of Au(111). This unexpectedly strong spin-coupling effect is further confirmed by density functional calculations that reveal no spin-electron interactions at this molecule-gold substrate separation if the graphene nanoribbons are absent. Our findings suggest graphene nanoribbons mediate effective spin coupling, opening a way for potential applications in spintronics.Semiconducting graphene nanoribbon provides a platform for band-gap engineering desired for electronic and optoelectronic applications. Here, Li et al. show that graphene nanoribbon can effectively mediate the interaction of molecular magnetic moment and electronic spin in underlying metallic substrates. PMID- 29038515 TI - Molecular Tilting Alignment on Ag@C Nanocubes Monitored by Temperature-Dependent Surface Enhanced Raman Scattering. AB - Core@shell Ag@C nanocubes (NCs) with a cubic silver core (~60 nm of side length) and a coating of ultrathin amorphous carbon (~4 nm) have been synthesized on a large scale by a one-pot hydrothermal method. The carbon layer not only protects the Ag@C nanocubes from oxidation under hydrothermal condition, but also stabilizes the structure of Ag cores. Considering that optical properties of nanostructured metals strongly depend on the temperature for SERS measurement, in this work we systemically investigate the relationship between the orientation of molecules adsorbed on Ag@C NCs and temperature by SERS spectra. Results suggest that the adsorbed 4-MBA molecules prefer a flat orientation on the NC surface with temperature decreasing. In addition, Ag@C NCs after one-year storage in water still maintain high SERS-active capability. Our synthesized Ag@C NCs with excellent and stable optical properties can be potentially applied in the field of sensor and ultrasensitive spectral analysis. PMID- 29038514 TI - Extensive gain and loss of photosystem I subunits in chromerid algae, photosynthetic relatives of apicomplexans. AB - In oxygenic photosynthesis the initial photochemical processes are carried out by photosystem I (PSI) and II (PSII). Although subunit composition varies between cyanobacterial and plastid photosystems, the core structures of PSI and PSII are conserved throughout photosynthetic eukaryotes. So far, the photosynthetic complexes have been characterised in only a small number of organisms. We performed in silico and biochemical studies to explore the organization and evolution of the photosynthetic apparatus in the chromerids Chromera velia and Vitrella brassicaformis, autotrophic relatives of apicomplexans. We catalogued the presence and location of genes coding for conserved subunits of the photosystems as well as cytochrome b6f and ATP synthase in chromerids and other phototrophs and performed a phylogenetic analysis. We then characterised the photosynthetic complexes of Chromera and Vitrella using 2D gels combined with mass-spectrometry and further analysed the purified Chromera PSI. Our data suggest that the photosynthetic apparatus of chromerids underwent unique structural changes. Both photosystems (as well as cytochrome b6f and ATP synthase) lost several canonical subunits, while PSI gained one superoxide dismutase (Vitrella) or two superoxide dismutases and several unknown proteins (Chromera) as new regular subunits. We discuss these results in light of the extraordinarily efficient photosynthetic processes described in Chromera. PMID- 29038517 TI - Interplay between the gold nanoparticle sub-cellular localization, size, and the photon energy for radiosensitization. AB - There are large variations in the reported efficiency of gold nanoparticle (GNP) radiosensitization. We have previously reported on a predictive model, which accounts for the detailed Auger and photoelectron tracks to calculate the cell survival probability. After validating our model using PC-3 cells incubated with 2 mg/ml of 30 nm GNPs and irradiated with 100 kVp or 300 kVp beams, we evaluated the interplay between photon energy, GNP size (1.9 and 100 nm) and sub-cellular localization. Experiments were in excellent agreement with the model. In predictive modeling, using a 100 kVp source and 1.9 nm nanoparticles, GNP localization had a significant impact on cell survival. A sensitizer enhancement ratio of 1.34 was achieved when GNPs were localized outside the cells, increasing to 2.56 when GNPs were also distributed in the cytoplasm and nucleus. Using a 300 kVp source, which emits photons mainly above the gold K-edge, the dependence on GNP localization and size was barely detectable, since long ranged electrons dominate the energy deposition. In summary, achieving intracellular uptake with targeted-GNPs can significantly enhance radiosensitization for photon energies below the gold K-edge, where Auger electrons contribute significantly to the local energy deposition. For higher energies, this is much less important. PMID- 29038516 TI - EEG topographies provide subject-specific correlates of motor control. AB - Electroencephalography (EEG) of brain activity can be represented in terms of dynamically changing topographies (microstates). Notably, spontaneous brain activity recorded at rest can be characterized by four distinctive topographies. Despite their well-established role during resting state, their implication in the generation of motor behavior is debated. Evidence of such a functional role of spontaneous brain activity would provide support for the design of novel and sensitive biomarkers in neurological disorders. Here we examined whether and to what extent intrinsic brain activity contributes and plays a functional role during natural motor behaviors. For this we first extracted subject-specific EEG microstates and muscle synergies during reaching-and-grasping movements in healthy volunteers. We show that, in every subject, well-known resting-state microstates persist during movement execution with similar topographies and temporal characteristics, but are supplemented by novel task-related microstates. We then show that the subject-specific microstates' dynamical organization correlates with the activation of muscle synergies and can be used to decode individual grasping movements with high accuracy. These findings provide first evidence that spontaneous brain activity encodes detailed information about motor control, offering as such the prospect of a novel tool for the definition of subject-specific biomarkers of brain plasticity and recovery in neuro-motor disorders. PMID- 29038518 TI - Direct measurement of discrete valley and orbital quantum numbers in bilayer graphene. AB - The high magnetic field electronic structure of bilayer graphene is enhanced by the spin, valley isospin, and an accidental orbital degeneracy, leading to a complex phase diagram of broken symmetry states. Here, we present a technique for measuring the layer-resolved charge density, from which we directly determine the valley and orbital polarization within the zero energy Landau level. Layer polarization evolves in discrete steps across 32 electric field-tuned phase transitions between states of different valley, spin, and orbital order, including previously unobserved orbitally polarized states stabilized by skew interlayer hopping. We fit our data to a model that captures both single-particle and interaction-induced anisotropies, providing a complete picture of this correlated electron system. The resulting roadmap to symmetry breaking paves the way for deterministic engineering of fractional quantum Hall states, while our layer-resolved technique is readily extendable to other two-dimensional materials where layer polarization maps to the valley or spin quantum numbers.The phase diagram of bilayer graphene at high magnetic fields has been an outstanding question, with orders possibly between multiple internal quantum degrees of freedom. Here, Hunt et al. report the measurement of the valley and orbital order, allowing them to directly reconstruct the phase diagram. PMID- 29038519 TI - Resveratrol therapeutics combines both antimicrobial and immunomodulatory properties against respiratory infection by nontypeable Haemophilus influenzae. AB - The respiratory pathogen nontypeable Haemophilus influenzae (NTHi) is an important cause of acute exacerbation of chronic obstructive pulmonary disease (AECOPD) that requires efficient treatments. A previous screening for host genes differentially expressed upon NTHi infection identified sirtuin-1, which encodes a NAD-dependent deacetylase protective against emphysema and is activated by resveratrol. This polyphenol concomitantly reduces NTHi viability, therefore highlighting its therapeutic potential against NTHi infection at the COPD airway. In this study, resveratrol antimicrobial effect on NTHi was shown to be bacteriostatic and did not induce resistance development in vitro. Analysis of modulatory properties on the NTHi-host airway epithelial interplay showed that resveratrol modulates bacterial invasion but not subcellular location, reduces inflammation without targeting phosphodiesterase 4B gene expression, and dampens beta defensin-2 gene expression in infected cells. Moreover, resveratrol therapeutics against NTHi was evaluated in vivo on mouse respiratory and zebrafish septicemia infection model systems, showing to decrease NTHi viability in a dose-dependent manner and reduce airway inflammation upon infection, and to have a significant bacterial clearing effect without signs of host toxicity, respectively. This study presents resveratrol as a therapeutic of particular translational significance due to the attractiveness of targeting both infection and overactive inflammation at the COPD airway. PMID- 29038520 TI - Decrypting Strong and Weak Single-Walled Carbon Nanotubes Interactions with Mitochondrial Voltage-Dependent Anion Channels Using Molecular Docking and Perturbation Theory. AB - The current molecular docking study provided the Free Energy of Binding (FEB) for the interaction (nanotoxicity) between VDAC mitochondrial channels of three species (VDAC1-Mus musculus, VDAC1-Homo sapiens, VDAC2-Danio rerio) with SWCNT-H, SWCNT-OH, SWCNT-COOH carbon nanotubes. The general results showed that the FEB values were statistically more negative (p < 0.05) in the following order: (SWCNT VDAC2-Danio rerio) > (SWCNT-VDAC1-Mus musculus) > (SWCNT-VDAC1-Homo sapiens) > (ATP-VDAC). More negative FEB values for SWCNT-COOH and OH were found in VDAC2 Danio rerio when compared with VDAC1-Mus musculus and VDAC1-Homo sapiens (p < 0.05). In addition, a significant correlation (0.66 > r2 > 0.97) was observed between n-Hamada index and VDAC nanotoxicity (or FEB) for the zigzag topologies of SWCNT-COOH and SWCNT-OH. Predictive Nanoparticles-Quantitative-Structure Binding-Relationship models (nano-QSBR) for strong and weak SWCNT-VDAC docking interactions were performed using Perturbation Theory, regression and classification models. Thus, 405 SWCNT-VDAC interactions were predicted using a nano-PT-QSBR classifications model with high accuracy, specificity, and sensitivity (73-98%) in training and validation series, and a maximum AUROC value of 0.978. In addition, the best regression model was obtained with Random Forest (R2 of 0.833, RMSE of 0.0844), suggesting an excellent potential to predict SWCNT VDAC channel nanotoxicity. All study data are available at https://doi.org/10.6084/m9.figshare.4802320.v2 . PMID- 29038521 TI - PKCepsilon phosphorylates MIIP and promotes colorectal cancer metastasis through inhibition of RelA deacetylation. AB - EGFR signaling is implicated in NF-kappaB activation. However, the concrete mechanisms by which the core transducer of NF-kappaB signaling pathway, RelA/p65 is regulated under EGFR activation remains to be further clarified. Here, we show that EGF stimulation induces PKCepsilon-dependent phosphorylation of migration and invasion inhibitory protein (MIIP) at Ser303; this phosphorylation promotes the interaction between MIIP and RelA in the nucleus, by which MIIP prevents histone deacetylase 6 (HDAC6)-mediated RelA deacetylation, and thus enhances transcriptional activity of RelA and facilitates tumor metastasis. Meanwhile PP1, which functions as a phosphatase, is found to mediate MIIP-S303 dephosphorylation and its expression level inversely correlates with metastatic capability of tumor cells. Moreover, clinical analyses indicate the level of MIIP-S303 phosphorylation correlates with colorectal cancer (CRC) metastasis and prognosis. These findings uncover an unidentified mechanism underlying the precise regulation of NF-kappaB by EGF, and highlight the critical role of nuclear MIIP in tumor metastasis.In colorectal cancer, EGFR signalling is implicated in metastasis. Here, the authors unravel a mechanism through which EGF stimulation induces MIIP phosphorylation, leading to MIIP interacting with RelA-this prevents RelA deactylation and enhances transcriptional activity, facilitating metastasis. PMID- 29038522 TI - Ecological resilience in lakes and the conjunction fallacy. AB - There is a pressing need to apply stability and resilience theory to environmental management to restore degraded ecosystems effectively and to mitigate the effects of impending environmental change. Lakes represent excellent model case studies in this respect and have been used widely to demonstrate theories of ecological stability and resilience that are needed to underpin preventative management approaches. However, we argue that this approach is not yet fully developed because the pursuit of empirical evidence to underpin such theoretically grounded management continues in the absence of an objective probability framework. This has blurred the lines between intuitive logic (based on the elementary principles of probability) and extensional logic (based on assumption and belief) in this field. PMID- 29038523 TI - Angiotensin II type 2 receptor (AT2R) as a novel modulator of inflammation in rheumatoid arthritis synovium. AB - Despite increasing evidence suggesting that angiotensin II type 2 receptor (AT2R) may regulate tissue inflammation, no study has yet analyzed its possible implication in rheumatoid arthritis (RA) synovitis. In this study, we investigated the expression and function of AT2R in synovial tissue and cultured fibroblast-like synoviocytes (FLS) from RA patients. AT2R expression was strongly increased in RA compared with osteoarthritis (OA) synovium, as well as in in cultured RA-FLS respect to OA-FLS and healthy FLS. Treatment with pro inflammatory cytokines was able not only to boost AT2R expression in RA-FLS and OA-FLS, but also to induce its de novo expression in healthy FLS. The stimulation of AT2R with the specific agonist CGP42112A significantly reduced gene expression of interleukin (IL)-1beta and IL-6 and activation of NF-kappaB in RA-FLS, while opposite effects were elicited by AT2R small interfering RNA. Moreover, AT2R agonism efficiently decreased RA-FLS proliferation and migration either at baseline or under pro-inflammatory cytokine challenge. In conclusion, AT2R is strongly expressed in key effector cells of rheumatoid synovitis, namely RA-FLS, and the activation of AT2R with a specific agonist may effectively dampen their pro-inflammatory and aggressive behavior. AT2R agonism might represent a novel therapeutic strategy for patients with RA. PMID- 29038524 TI - RNA-Seq transcriptome profiling of mouse oocytes after in vitro maturation and/or vitrification. AB - In vitro maturation (IVM) and vitrification have been widely used to prepare oocytes before fertilization; however, potential effects of these procedures, such as expression profile changes, are poorly understood. In this study, mouse oocytes were divided into four groups and subjected to combinations of in vitro maturation and/or vitrification treatments. RNA-seq and in silico pathway analysis were used to identify differentially expressed genes (DEGs) that may be involved in oocyte viability after in vitro maturation and/or vitrification. Our results showed that 1) 69 genes were differentially expressed after IVM, 66 of which were up-regulated. Atp5e and Atp5o were enriched in the most significant gene ontology term "mitochondrial membrane part"; thus, these genes may be promising candidate biomarkers for oocyte viability after IVM. 2) The influence of vitrification on the transcriptome of oocytes was negligible, as no DEGs were found between vitrified and fresh oocytes. 3) The MII stage is more suitable for oocyte vitrification with respect to the transcriptome. This study provides a valuable new theoretical basis to further improve the efficiency of in vitro maturation and/or oocyte vitrification. PMID- 29038525 TI - Elevated serum alkaline phosphatase and cardiovascular or all-cause mortality risk in dialysis patients: A meta-analysis. AB - Studies on serum alkaline phosphatase (ALP) and mortality risk in patients with end-stage renal disease (ESRD) undergoing dialysis have yielded conflicting results. This meta-analysis was designed to assess the association of serum ALP levels with cardiovascular or all-cause mortality risk among patients on dialysis. PubMed and Embase databases were searched until March 2017 for studies evaluating the association of serum ALP levels and cardiovascular or all-cause mortality risk in adult patients with ESRD undergoing maintenance hemodialysis or chronic peritoneal dialysis. Twelve studies enrolling 393,200 patients on dialysis were included. Compared with the reference low serum ALP category, pooled adjusted hazard risk (HR) of all-cause mortality was 1.46 (95% confidence interval [CI] 1.30-1.65) for patients on hemodialysis and 1.93 (95% CI 1.71-2.17) for peritoneal patients on dialysis. In addition, elevated serum ALP significantly increased cardiovascular mortality among patients on peritoneal dialysis (HR 2.39; 95% CI 1.23-4.65) but not in patients on hemodialysis (HR 1.08; 95% CI 0.84-1.40). Elevated serum ALP was an independent risk factor for all-cause mortality among patients on hemodialysis or peritoneal dialysis. Further well-designed prospective studies are needed to investigate the association of high serum ALP levels with cardiovascular mortality among patients on dialysis. PMID- 29038526 TI - Strain in shock-loaded skeletal muscle and the time scale of muscular wobbling mass dynamics. AB - In terrestrial locomotion, muscles undergo damped oscillations in response to limb impacts with the ground. Muscles are also actuators that generate mechanical power to allow locomotion. The corresponding elementary contractile process is the work stroke of an actin-myosin cross-bridge, which may be forcibly detached by superposed oscillations. By experimentally emulating rat leg impacts, we found that full activity and non-fatigue must meet to possibly prevent forcible cross bridge detachment. Because submaximal muscle force represents the ordinary locomotor condition, our results show that forcible, eccentric cross-bridge detachment is a common, physiological process even during isometric muscle contractions. We also calculated the stiffnesses of the whole muscle-tendon complex and the fibre material separately, as well as Young's modulus of the latter: 1.8 MPa and 0.75 MPa for fresh, fully active and passive fibres, respectively. Our inferred Young's modulus of the tendon-aponeurosis complex suggests that stiffness in series to the fibre material is determined by the elastic properties of the aponeurosis region, rather than the tendon material. Knowing these stiffnesses and the muscle mass, the complex' eigenfrequency for responses to impacts can be quantified, as well as the size-dependency of this time scale of muscular wobbling mass dynamics. PMID- 29038528 TI - Transcriptome analysis of Spodoptera frugiperda Sf9 cells reveals putative apoptosis-related genes and a preliminary apoptosis mechanism induced by azadirachtin. AB - As an important botanical pesticide, azadirachtin demonstrates broad insecticidal activity against many agricultural pests. The results of a previous study indicated the toxicity and apoptosis induction of azadirachtin in Spodoptera frugiperda Sf9 cells. However, the lack of genomic data has hindered a deeper investigation of apoptosis in Sf9 cells at a molecular level. In the present study, the complete transcriptome data for Sf9 cell line was accomplished using Illumina sequencing technology, and 97 putative apoptosis-related genes were identified through BLAST and KEGG orthologue annotations. Fragments of potential candidate apoptosis-related genes were cloned, and the mRNA expression patterns of ten identified genes regulated by azadirachtin were examined using qRT-PCR. Furthermore, Western blot analysis showed that six putative apoptosis-related proteins were upregulated after being treated with azadirachtin while the protein Bcl-2 were downregulated. These data suggested that both intrinsic and extrinsic apoptotic signal pathways comprising the identified potential apoptosis-related genes were potentially active in S. frugiperda. In addition, the preliminary results revealed that caspase-dependent or caspase-independent apoptotic pathways could function in azadirachtin-induced apoptosis in Sf9 cells. PMID- 29038529 TI - Hybrid structure of white layer in high carbon steel - Formation mechanism and its properties. AB - This study identifies for the first time, the hybrid structure of the white layer in high carbon steel and describes its formation mechanism and properties. The so called 'white layer' in steel forms during high strain rate deformation and appears featureless under optical microscopy. While many researchers have investigated the formation of the white layer, there has been no definitive study, nor is there sufficient evidence to fully explain the formation, structure and properties of the layer. In this study, the formation, morphology and mechanical properties of the white layer was determined following impact testing, using a combination of optical and SE- microscopy, HR-EBSD, TKD and TEM as well as nano-indentation hardness measurements and FE modelling. The phase transformation and recrystallization within and near the white layer was also investigated. The microstructure of the steel in the white layer consisted of nano-sized grains of martensite. A very thin layer of austenite with nano sized grains was identified within the white layer by HR-EBSD techniques, the presence of which is attributed to a thermally-induced reverse phase transformation. Overall, the combination of phase transformations, strain hardening and grain refinement led to a hybrid structure and an increase in hardness of the white layer. PMID- 29038527 TI - Blood vessel control of macrophage maturation promotes arteriogenesis in ischemia. AB - Ischemia causes an inflammatory response that is intended to restore perfusion and homeostasis yet often aggravates damage. Here we show, using conditional genetic deletion strategies together with adoptive cell transfer experiments in a mouse model of hind limb ischemia, that blood vessels control macrophage differentiation and maturation from recruited monocytes via Notch signaling, which in turn promotes arteriogenesis and tissue repair. Macrophage maturation is controlled by Notch ligand Dll1 expressed in vascular endothelial cells of arteries and requires macrophage canonical Notch signaling via Rbpj, which simultaneously suppresses an inflammatory macrophage fate. Conversely, conditional mutant mice lacking Dll1 or Rbpj show proliferation and transient accumulation of inflammatory macrophages, which antagonizes arteriogenesis and tissue repair. Furthermore, the effects of Notch are sufficient to generate mature macrophages from monocytes ex vivo that display a stable anti-inflammatory phenotype when challenged with pro-inflammatory stimuli. Thus, angiocrine Notch signaling fosters macrophage maturation during ischemia.Molecular mechanisms of macrophage-mediated regulation of artery growth in response to ischemia are poorly understood. Here the authors show that vascular endothelium controls macrophage maturation and differentiation via Notch signaling, which in turn promotes arteriogenesis and ischemic tissue recovery. PMID- 29038530 TI - Collision with duplex DNA renders Escherichia coli DNA polymerase III holoenzyme susceptible to DNA polymerase IV-mediated polymerase switching on the sliding clamp. AB - Organisms possess multiple DNA polymerases (Pols) and use each for a different purpose. One of the five Pols in Escherichia coli, DNA polymerase IV (Pol IV), encoded by the dinB gene, is known to participate in lesion bypass at certain DNA adducts. To understand how cells choose Pols when the replication fork encounters an obstacle on template DNA, the process of polymerase exchange from the primary replicative enzyme DNA polymerase III (Pol III) to Pol IV was studied in vitro. Replicating Pol III forming a tight holoenzyme (Pol III HE) with the sliding clamp was challenged by Pol IV on a primed ssDNA template carrying a short inverted repeat. A rapid and lesion-independent switch from Pol III to Pol IV occurred when Pol III HE encountered a hairpin stem duplex, implying that the loss of Pol III-ssDNA contact induces switching to Pol IV. Supporting this idea, mutant Pol III with an increased affinity for ssDNA was more resistant to Pol IV than wild-type Pol III was. We observed that an exchange between Pol III and Pol IV also occurred when Pol III HE collided with primer/template duplex. Our data suggest that Pol III-ssDNA interaction may modulate the susceptibility of Pol III HE to Pol IV-mediated polymerase exchange. PMID- 29038533 TI - Video capillaroscopy clarifies mechanism of the photoplethysmographic waveform appearance. AB - Photoplethysmography (PPG) devices are widely used in clinical practice but the origin of PPG signal is still under debating. The classical theory assumes that the PPG waveform stems from variations of blood volume in pulsating arteries. In this research we analysed high-speed video recordings of capillaries in a fingernail bed. It was found that speed of erythrocytes in capillaries has pronounced modulation in time, which follows variations of instantaneous blood pressure in arteries. However, the mean speed significantly differs even for neighbour capillaries whereas change of the speed occurs in phase for the most of capillaries. Moreover, the light intensity remitted from the papillary dermis is also modulated at the heartbeat frequency displaying significant correlation with waveforms of the RBC speed. Obtained results can hardly be explained by the classical theory of PPG signal formation. Shallow penetrating visible light acquires modulation of erythrocytes density in the capillary bed without interacting with deeper situated pulsating arteries. Therefore, the capillary bed could serve as a distributed sensor for monitor the status of deep vessels. Better understanding of the photoplethysmography basis will result in a wider range of applications of this fast growing technology in both medical and research practice. PMID- 29038531 TI - TRPA1-FGFR2 binding event is a regulatory oncogenic driver modulated by miRNA-142 3p. AB - Recent evidence suggests that the ion channel TRPA1 is implicated in lung adenocarcinoma (LUAD), where its role and mechanism of action remain unknown. We have previously established that the membrane receptor FGFR2 drives LUAD progression through aberrant protein-protein interactions mediated via its C terminal proline-rich motif. Here we report that the N-terminal ankyrin repeats of TRPA1 directly bind to the C-terminal proline-rich motif of FGFR2 inducing the constitutive activation of the receptor, thereby prompting LUAD progression and metastasis. Furthermore, we show that upon metastasis to the brain, TRPA1 gets depleted, an effect triggered by the transfer of TRPA1-targeting exosomal microRNA (miRNA-142-3p) from brain astrocytes to cancer cells. This downregulation, in turn, inhibits TRPA1-mediated activation of FGFR2, hindering the metastatic process. Our study reveals a direct binding event and characterizes the role of TRPA1 ankyrin repeats in regulating FGFR2-driven oncogenic process; a mechanism that is hindered by miRNA-142-3p.TRPA1 has been reported to contribute lung cancer adenocarcinoma (LUAD), but the mechanisms are unclear. Here the authors propose that TRPA1/FGFR2 interaction is functional in LUAD and show that astrocytes oppose brain metastasis by mediating the downregulation of TRPA1 through exosome-delivered miRNA-142-3p. PMID- 29038532 TI - The major outer sheath protein forms distinct conformers and multimeric complexes in the outer membrane and periplasm of Treponema denticola. AB - The major outer sheath protein (MOSP) is a prominent constituent of the cell envelope of Treponema denticola (TDE) and one of its principal virulence determinants. Bioinformatics predicts that MOSP consists of N- and C-terminal domains, MOSPN and MOSPC. Biophysical analysis of constructs refolded in vitro demonstrated that MOSPC, previously shown to possess porin activity, forms amphiphilic trimers, while MOSPN forms an extended hydrophilic monomer. In TDE and E. coli expressing MOSP with a PelB signal sequence (PelB-MOSP), MOSPC is OM embedded and surface-exposed, while MOSPN resides in the periplasm. Immunofluorescence assay, surface proteolysis, and novel cell fractionation schemes revealed that MOSP in TDE exists as outer membrane (OM) and periplasmic trimeric conformers; PelB-MOSP, in contrast, formed only OM-MOSP trimers. Although both conformers form hetero-oligomeric complexes in TDE, only OM-MOSP associates with dentilisin. Mass spectrometry (MS) indicated that OM-MOSP interacts with proteins in addition to dentilisin, most notably, oligopeptide binding proteins (OBPs) and the beta-barrel of BamA. MS also identified candidate partners for periplasmic MOSP, including TDE1658, a spirochete-specific SurA/PrsA ortholog. Collectively, our data suggest that MOSP destined for the TDE OM follows the canonical BAM pathway, while formation of a stable periplasmic conformer involves an export-related, folding pathway not present in E. coli. PMID- 29038535 TI - Investigating spatiotemporal changes of the land-surface processes in Xinjiang using high-resolution CLM3.5 and CLDAS: Soil temperature. AB - Soil temperature plays a key role in the land surface processes because this parameter affects a series of physical, chemical, and biological processes in the soil, such as water and heat fluxes. However, observation of soil temperature is quite limited, especially at the regional scale. Therefore, this study is to investigate the spatiotemporal features of soil temperature in Xinjiang, China, using the Community Land model 3.5 (CLM3.5) with the atmospheric near-surface forcing data of the China Meteorological Administration Land Data Assimilation System (CLDAS). We use the observed soil temperature data collected from 105 national automatic stations during 2009 through 2012 in the study area to verify the simulation capability. The comparison results indicate that the CLM3.5 with the CLDAS driving field could well simulate the spatiotemporal patterns of the soil temperature at hourly, daily, and monthly time scales and at three depths (5 cm, 20 cm, and 80 cm). We also produce a soil temperature database of the region that is continuous both in time and space with high resolution (about 6.25 km). Overall, this study could help understand the regional and vertical characteristics of the soil temperature and provide an important scientific basis for other land-surface processes. PMID- 29038534 TI - Performance and consistency of a fluorescence-based high-throughput screening assay for use in Babesia drug screening in mice. AB - In this study, we evaluated the validity of a fluorescence-based assay using SYBR Green I (SG I) stain for screening antibabesial compounds against B. microti in mice. Two different hematocrits (HCTs; 2.5% and 5%) were used. Correlating relative fluorescence units (RFUs) with parasitemia showed significant linear relationships with R2 values of 0.97 and 0.99 at HCTs of 2.5% and 5%, respectively. Meanwhile, the Z' factors in a high-throughput screening (HTS) assay were within the permissible limit (>=0.5) at 2.5% HCT and lower than this value at 5% HCT. Taken together, the highest signal-to-noise (S/N) ratios were obtained at 2.5% HCT; therefore, we concluded that 2.5% was the best HCT for applying fluorescence assay in antibabesial drug screening in mice. Additionally, positive control mice and those treated with diminazene aceturate, pyronaridine tetraphosphate, and an allicin/diminazene aceturate combination showed peak parasitemia and fluorescence values on the same day post-inoculation. Moreover, using different concentrations of SG I revealed that the optimal concentration was 2x. In summary, considering that all experiments were applied under optimal laboratory conditions, fluorescence assay at 2.5% HCT using 2x SG I for B. microti parasite offers a novel approach for drug screening in mice. PMID- 29038536 TI - Hydrogen Sulphide Treatment Increases Insulin Sensitivity and Improves Oxidant Metabolism through the CaMKKbeta-AMPK Pathway in PA-Induced IR C2C12 Cells. AB - Studies have reported attenuation of insulin resistance (IR) by improving phosphorylation of the insulin signalling pathway. However, the upstream molecular signalling pathway is still elusive. In this study, Western blot was used to evaluate the phosphorylation level of the insulin signalling pathway and the AMPK pathway. 2-NBDG was used to evaluate glucose uptake. Ca2+ imaging was used to assess change of intracellular Ca2+ concentration. We found that NaHS enhanced the intracellular Ca2+ concentration and glucose uptake and activated the insulin signalling cascade in a palmitic acid (PA)-induced IR model in C2C12 cells. Furthermore, activation of the IRS1/PI3K/AKT pathway and glucose uptake were decreased when AMPK or CaMKKbeta was inhibited. Our study also showed that the mitochondrial electron transport chain, ATP production, and intramitochondrial cAMP declined in the IR model but that this effect was reversed by NaHS, an effect that may be mediated by the Ca2+/CaMKK2/AMPK and PI3K/AKT pathways. Our data indicate that H2S improves activation of the insulin signalling cascade and glucose uptake via activation of the Ca2+/CaMKK2/AMPK pathway and mitochondrial metabolism in C2C12 cells. Furthermore, NaHS protects mitochondrial function and maintains normal ATP production by activating the cAMP system and the Ca2+/CaMKK2/AMPK and PI3K/ATK pathways. PMID- 29038537 TI - B cells in type 1 diabetes mellitus and diabetic kidney disease. AB - Type 1 diabetes mellitus (T1DM) is an autoimmune disorder that affects an estimated 30 million people worldwide. It is characterized by the destruction of pancreatic beta cells by the immune system, which leads to lifelong dependency on exogenous insulin and imposes an enormous burden on patients and health-care resources. T1DM is also associated with an increased risk of comorbidities, such as cardiovascular disease, retinopathy, and diabetic kidney disease (DKD), further contributing to the burden of this disease. Although T cells are largely considered to be responsible for beta-cell destruction in T1DM, increasing evidence points towards a role for B cells in disease pathogenesis. B cell depletion, for example, delays disease progression in patients with newly diagnosed T1DM. Loss of tolerance of islet antigen-reactive B cells occurs early in disease and numbers of pancreatic CD20+ B cells correlate with beta-cell loss. Although the importance of B cells in T1DM is increasingly apparent, exactly how these cells contribute to disease and its comorbidities, such as DKD, is not well understood. Here we discuss the role of B cells in the pathogenesis of T1DM and how these cells are activated during disease development. Finally, we speculate on how B cells might contribute to the development of DKD. PMID- 29038538 TI - Correlated states in beta-Li2IrO3 driven by applied magnetic fields. AB - Magnetic honeycomb iridates are thought to show strongly spin-anisotropic exchange interactions which, when highly frustrated, lead to an exotic state of matter known as the Kitaev quantum spin liquid. However, in all known examples these materials magnetically order at finite temperatures, the scale of which may imply weak frustration. Here we show that the application of a relatively small magnetic field drives the three-dimensional magnet beta-Li2IrO3 from its incommensurate ground state into a quantum correlated paramagnet. Interestingly, this paramagnetic state admixes a zig-zag spin mode analogous to the zig-zag order seen in other Mott-Kitaev compounds. The rapid onset of the field-induced correlated state implies the exchange interactions are delicately balanced, leading to strong frustration and a near degeneracy of different ground states.Materials with a Kitaev spin liquid ground state are sought after as models of quantum phases but candidates so far form either zig-zag or incommensurate magnetic order. Ruiz et al. find a crossover between these states in beta-Li2IrO3 under weak magnetic fields, indicating strongly frustrated spin interactions. PMID- 29038539 TI - Electro-osmotic capture and ionic discrimination of peptide and protein biomarkers with FraC nanopores. AB - Biological nanopores are nanoscale sensors employed for high-throughput, low cost, and long read-length DNA sequencing applications. The analysis and sequencing of proteins, however, is complicated by their folded structure and non uniform charge. Here we show that an electro-osmotic flow through Fragaceatoxin C (FraC) nanopores can be engineered to allow the entry of polypeptides at a fixed potential regardless of the charge composition of the polypeptide. We further use the nanopore currents to discriminate peptide and protein biomarkers from 25 kDa down to 1.3 kDa including polypeptides differing by one amino acid. On the road to nanopore proteomics, our findings represent a rationale for amino-acid analysis of folded and unfolded polypeptides with nanopores.Biological nanopore based protein sequencing and recognition is challenging due to the folded structure or non-uniform charge of peptides. Here the authors show that engineered FraC nanopores can overcome these problems and recognize biomarkers in the form of oligopeptides, polypeptides and folded proteins. PMID- 29038541 TI - NK cells are negatively regulated by sCD83 in experimental autoimmune uveitis. AB - Natural killer (NK) cells represent a subset of lymphocytes that contribute to innate immunity and have been reported to play a role in autoimmune uveitis. However, the mechanisms regulating NK cellular function in this condition remain unclear. Herein, we investigated the status of NK cells in experimental autoimmune uveitis (EAU). We found that the number of CD83+CD3-NK1.1+ cells was increased in the inflamed eyes and spleens of the EAU mouse model. At the recovery stage of EAU, serum concentrations of soluble CD83 (sCD83) were increased. sCD83 treatment relieved retinal tissue damage and decreased the number of infiltrating NK cells in inflamed eyes. Further analysis of the effects of sCD83 treatment in EAU revealed that it reduced: 1) the expressions of CD11b and CD83 in NK cells, 2) the percent of CD11bhighCD27lowCD3-NK1.1+ cells and 3) the secretion of granzyme B, perforin and IFN-gamma in NK cells as demonstrated both in vivo and in vitro. When sCD83 treated-NK cells were transferred into EAU mice, retinal tissue damage was relieved. These results demonstrate sCD83 down regulate NK cellular function and thus provide important, new information regarding the means for the beneficial effects of this agent in the treatment of autoimmune uveitis. PMID- 29038540 TI - Regulation of endothelial intracellular adenosine via adenosine kinase epigenetically modulates vascular inflammation. AB - The molecular mechanisms underlying vascular inflammation and associated inflammatory vascular diseases are not well defined. Here we show that endothelial intracellular adenosine and its key regulator adenosine kinase (ADK) play important roles in vascular inflammation. Pro-inflammatory stimuli lead to endothelial inflammation by increasing endothelial ADK expression, reducing the level of intracellular adenosine in endothelial cells, and activating the transmethylation pathway through increasing the association of ADK with S adenosylhomocysteine (SAH) hydrolase (SAHH). Increasing intracellular adenosine by genetic ADK knockdown or exogenous adenosine reduces activation of the transmethylation pathway and attenuates the endothelial inflammatory response. In addition, loss of endothelial ADK in mice leads to reduced atherosclerosis and affords protection against ischemia/reperfusion injury of the cerebral cortex. Taken together, these results demonstrate that intracellular adenosine, which is controlled by the key molecular regulator ADK, influences endothelial inflammation and vascular inflammatory diseases.The molecular mechanisms underlying vascular inflammation are unclear. Here the authors show that pro inflammatory stimuli lead to endothelial inflammation by increasing adenosine kinase expression, and that its knockdown in endothelial cells inhibits atherosclerosis and cerebral ischemic injury in mice. PMID- 29038543 TI - Advanced Silicon-on-Insulator: Crystalline Silicon on Atomic Layer Deposited Beryllium Oxide. AB - Silicon-on-insulator (SOI) technology improves the performance of devices by reducing parasitic capacitance. Devices based on SOI or silicon-on-sapphire technology are primarily used in high-performance radio frequency (RF) and radiation sensitive applications as well as for reducing the short channel effects in microelectronic devices. Despite their advantages, the high substrate cost and overheating problems associated with complexities in substrate fabrication as well as the low thermal conductivity of silicon oxide prevent broad applications of this technology. To overcome these challenges, we describe a new approach of using beryllium oxide (BeO). The use of atomic layer deposition (ALD) for producing this material results in lowering the SOI wafer production cost. Furthermore, the use of BeO exhibiting a high thermal conductivity might minimize the self-heating issues. We show that crystalline Si can be grown on ALD BeO and the resultant devices exhibit potential for use in advanced SOI technology applications. PMID- 29038542 TI - Store-operated Ca2+ Entry Facilitates the Lipopolysaccharide-induced Cyclooxygenase-2 Expression in Gastric Cancer Cells. AB - Helicobacter pylori has been identified as one of the major causes of chronic gastritis, gastric and duodenal ulcers, and gastric cancer. Lipopolysaccharide (LPS) is a major component of the outer membrane of gram-negative bacteria, and H. pylori LPS might play an exclusively important role in activating inflammatory pathways in monocytes and macrophages. To study the role of LPS in the underlying mechanism of inflammatory responses, we established an in vitro model using the human AGS gastric cancer cell line. We found that LPS mediates inflammation through setting off a cascade of events: activation of the store-operated calcium (SOC) channel, initiation of downstream NF-kappaB signaling, and phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2). Phosphorylated ERK1/2 promotes the nuclear translocation of NF-kappaB, and eventually elevates the expression level of COX-2, a major inflammatory gene. PMID- 29038544 TI - Amorphous lead oxide (a-PbO): suppression of signal lag via engineering of the layer structure. AB - Presence of a signal lag is a bottle neck of performance for many non-crystalline materials, considered for dynamic radiation sensing. Due to inadequate lag related temporal performance, polycrystalline layers of CdZnTe, PbI2, HgI2 and PbO are not practically utilized, despite their superior X-ray sensitivity and low production cost (even for large area detectors). In the current manuscript, we show that a technological step to replace nonhomogeneous disorder in polycrystalline PbO with homogeneous amorphous PbO structure suppresses signal lag and improves time response to X-ray irradiation. In addition, the newly developed amorphous lead oxide (a-PbO) possesses superior X-ray sensitivity in terms of electron-hole pair creation energy [Formula: see text] in comparison with amorphous selenium - currently the only photoconductor used as an X-ray-to charge transducer in the state-of-the-art direct conversion X-ray medical imaging systems. The proposed advances of the deposition process are low cost, easy to implement and with certain customization might potentially be applied to other materials, thus paving the way to their wide-range commercial use. PMID- 29038545 TI - Adjacent-possible ecological niche: growth of Lactobacillus species co-cultured with Escherichia coli in a synthetic minimal medium. AB - In certain conditions, members of the Lactobacillus genus are auxotrophs that have fastidious requirements for growth. Notably, Lactobacillus cannot grow in M9 medium, a minimal synthetic medium used for Escherichia coli. However, we found that some Lactobacillus strains can be grown in M9 when co-cultured with E. coli K-12. In the co-culture, L. casei proliferates exponentially, reaching cell densities of 108 CFU (colony-forming unit) ml-1 in 6 h and dominating E. coli in the late growth phase. Spent medium from E. coli grown overnight lacked this growth-promoting effect on L. casei. Similarly, the effect was not observed when the species were separated by a 0.4-um membrane. Microscopic observations showed that L. casei are embedded in the micro-scale clusters of E. coli in the early growth phase. This study describes for the first time the ability of a Lactobacillus species to grow in minimal medium when in close proximity with co cultured bacteria. PMID- 29038546 TI - Oyster reproduction is compromised by acidification experienced seasonally in coastal regions. AB - Atmospheric carbon dioxide concentrations have been rising during the past century, leading to ocean acidification (OA). Coastal and estuarine habitats experience annual pH variability that vastly exceeds the magnitude of long-term projections in open ocean regions. Eastern oyster (Crassostrea virginica) reproduction season coincides with periods of low pH occurrence in estuaries, thus we investigated effects of moderate (pH 7.5, pCO2 2260 uatm) and severe OA (pH 7.1, pCO2 5584 uatm; and 6.7, pCO2 18480 uatm) on oyster gametogenesis, fertilization, and early larval development successes. Exposure at severe OA during gametogenesis caused disruption in oyster reproduction. Oogenesis appeared to be more sensitive compared to spermatogenesis. However, Eastern oyster reproduction was resilient to moderate OA projected for the near-future. In the context of projected climate change exacerbating seasonal acidification, OA of coastal habitats could represent a significant bottleneck for oyster reproduction which may have profound negative implications for coastal ecosystems reliant on this keystone species. PMID- 29038547 TI - A novel Fer/FerT targeting compound selectively evokes metabolic stress and necrotic death in malignant cells. AB - Disruption of the reprogrammed energy management system of malignant cells is a prioritized goal of targeted cancer therapy. Two regulators of this system are the Fer kinase, and its cancer cell specific variant, FerT, both residing in subcellular compartments including the mitochondrial electron transport chain. Here, we show that a newly developed inhibitor of Fer and FerT, E260, selectively evokes metabolic stress in cancer cells by imposing mitochondrial dysfunction and deformation, and onset of energy-consuming autophagy which decreases the cellular ATP level. Notably, Fer was also found to associate with PARP-1 and E260 disrupted this association thereby leading to PARP-1 activation. The cooperative intervention with these metabolic pathways leads to energy crisis and necrotic death in malignant, but not in normal human cells, and to the suppression of tumors growth in vivo. Thus, E260 is a new anti-cancer agent which imposes metabolic stress and cellular death in cancer cells.The tyrosine-kinases Fer/FerT associate with the mitochondrial electron transport chain in cancer cells supporting their metabolic reprogramming. Here the authors discover a compound that disrupts Fer /FerT activity and selectively induces cell death of cancer cell lines displaying anti-tumor activity in vivo. PMID- 29038548 TI - Transmembrane Segment XI of the Na+/H+ Antiporter of S. pombe is a Critical Part of the Ion Translocation Pore. AB - The Na+/H+ exchanger of the plasma membrane of S. pombe (SpNHE1) removes intracellular sodium in exchange for an extracellular proton. We examined the structure and functional role of amino acids 360-393 of putative transmembrane (TM) segment XI of SpNHE1. Structural analysis suggested that it had a helical propensity over amino acids 360-368, an extended region from 369-378 and was helical over amino acids 379-386. TM XI was sensitive to side chain alterations. Mutation of eight amino acids to alanine resulted in loss of one or both of LiCl or NaCl tolerance when re-introduced into SpNHE1 deficient S. pombe. Mutation of seven other amino acids had minor effects. Analysis of structure and functional mutations suggested that Glu361 may be involved in cation coordination on the cytoplasmic face of the protein with a negative charge in this position being important. His367, Ile371 and Gly372 were important in function. Ile371 may have important hydrophobic interactions with other residues and Gly372 may be important in maintaining an extended conformation. Several residues from Val377 to Leu384 are important in function possibly involved in hydrophobic interactions with other amino acids. We suggest that TM XI forms part of the ion translocation core of this Na+/H+ exchanger. PMID- 29038549 TI - Packing topology in crystals of proteins and small molecules: a comparison. AB - We compared the topologies of protein and small molecule crystals, which have many common features - both are molecular crystals with intermolecular interactions much weaker than intramolecular interactions. They also have different features - a considerably large fraction of the volume of protein crystals is occupied by liquid water while no room is available to other molecules in small molecule crystals. We analyzed the overall and local topology and performed multilevel topological analyses (with the software package ToposPro) of carefully selected high quality sets of protein and small molecule crystal structures. Given the suboptimal packing of protein crystals, which is due the special shape and size of proteins, it would be reasonable to expect that the topology of protein crystals is different from the topology of small molecule crystals. Surprisingly, we discovered that these two types of crystalline compounds have strikingly similar topologies. This might suggest that molecular crystal formations share symmetry rules independent of molecular dimension. PMID- 29038550 TI - Neural Network for Nanoscience Scanning Electron Microscope Image Recognition. AB - In this paper we applied transfer learning techniques for image recognition, automatic categorization, and labeling of nanoscience images obtained by scanning electron microscope (SEM). Roughly 20,000 SEM images were manually classified into 10 categories to form a labeled training set, which can be used as a reference set for future applications of deep learning enhanced algorithms in the nanoscience domain. The categories chosen spanned the range of 0-Dimensional (0D) objects such as particles, 1D nanowires and fibres, 2D films and coated surfaces, and 3D patterned surfaces such as pillars. The training set was used to retrain on the SEM dataset and to compare many convolutional neural network models (Inception-v3, Inception-v4, ResNet). We obtained compatible results by performing a feature extraction of the different models on the same dataset. We performed additional analysis of the classifier on a second test set to further investigate the results both on particular cases and from a statistical point of view. Our algorithm was able to successfully classify around 90% of a test dataset consisting of SEM images, while reduced accuracy was found in the case of images at the boundary between two categories or containing elements of multiple categories. In these cases, the image classification did not identify a predominant category with a high score. We used the statistical outcomes from testing to deploy a semi-automatic workflow able to classify and label images generated by the SEM. Finally, a separate training was performed to determine the volume fraction of coherently aligned nanowires in SEM images. The results were compared with what was obtained using the Local Gradient Orientation method. This example demonstrates the versatility and the potential of transfer learning to address specific tasks of interest in nanoscience applications. PMID- 29038551 TI - A novel machine learning approach reveals latent vascular phenotypes predictive of renal cancer outcome. AB - Gene expression signatures are commonly used as predictive biomarkers, but do not capture structural features within the tissue architecture. Here we apply a 2 step machine learning framework for quantitative imaging of tumor vasculature to derive a spatially informed, prognostic gene signature. The trained algorithms classify endothelial cells and generate a vascular area mask (VAM) in H&E micrographs of clear cell renal cell carcinoma (ccRCC) cases from The Cancer Genome Atlas (TCGA). Quantification of VAMs led to the discovery of 9 vascular features (9VF) that predicted disease-free-survival in a discovery cohort (n = 64, HR = 2.3). Correlation analysis and information gain identified a 14 gene expression signature related to the 9VF's. Two generalized linear models with elastic net regularization (14VF and 14GT), based on the 14 genes, separated independent cohorts of up to 301 cases into good and poor disease-free survival groups (14VF HR = 2.4, 14GT HR = 3.33). For the first time, we successfully applied digital image analysis and targeted machine learning to develop prognostic, morphology-based, gene expression signatures from the vascular architecture. This novel morphogenomic approach has the potential to improve previous methods for biomarker development. PMID- 29038552 TI - Regulating p-block metals in perovskite nanodots for efficient electrocatalytic water oxidation. AB - Water oxidation represents the core process of many sustainable energy systems, such as fuel cells, rechargeable metal-air batteries, and water splitting. Material surface defects with high-energy hanging bonds possess superb intrinsic reactivity, whose actual performance is limited by the dimension and conductivity of the electrocatalyst. Herein we propose a surface defect-rich perovskite electrocatalyst through a p-block metal regulation concept to achieve high performance for oxygen evolution. As a typical p-metal, Sn4+ dissolves from the solid phase from model SnNiFe perovskite nanodots, resulting in abundant surface defects with superior water oxidation performance. An oxygen pool model and a fusion-evolution mechanism are therefore proposed for the in-depth understanding of p-block metal regulation and the oxygen evolution reaction. The energy chemistry unveiled herein provides insights into water oxidation and helps to tackle critical issues in multi-electron oxygen electrocatalysis.Electrocatalysts that possess high densities of surface defects show great promise for efficient water oxidation. Here the authors demonstrate that regulating the p-block metal content in perovskite nanodots imparts these materials with abundant surface defects and excellent electrocatalytic activity. PMID- 29038553 TI - A comparison of passive and active estimates of sleep in a cohort with schizophrenia. AB - : Sleep abnormalities are considered an important feature of schizophrenia, yet convenient and reliable sleep monitoring remains a challenge. Smartphones offer a novel solution to capture both self-reported and objective measures of sleep in schizophrenia. In this three-month observational study, 17 subjects with a diagnosis of schizophrenia currently in treatment downloaded Beiwe, a platform for digital phenotyping, on their personal Apple or Android smartphones. Subjects were given tri-weekly ecological momentary assessments (EMAs) on their own smartphones, and passive data including accelerometer, GPS, screen use, and anonymized call and text message logs was continuously collected. We compare the in-clinic assessment of sleep quality, assessed with the Pittsburgh Sleep Questionnaire Inventory (PSQI), to EMAs, as well as sleep estimates based on passively collected accelerometer data. EMAs and passive data classified 85% (11/13) of subjects as exhibiting high or low sleep quality compared to the in clinic assessments among subjects who completed at least one in-person PSQI. Phone-based accelerometer data used to infer sleep duration was moderately correlated with subject self-assessment of sleep duration (r = 0.69, 95% CI 0.23 0.90). Active and passive phone data predicts concurrent PSQI scores for all subjects with mean average error of 0.75 and future PSQI scores with a mean average error of 1.9, with scores ranging from 0-14. These results suggest sleep monitoring via personal smartphones is feasible for subjects with schizophrenia in a scalable and affordable manner. PATIENT MONITORING: SMARTPHONES CAN TRACK SCHIZOPHRENIA-RELATED SLEEP ABNORMALITIES: Smartphones may one-day offer accessible, clinically-useful insights into schizophrenia patients' sleep quality. Despite the clinical relevance of sleep to disease severity, monitoring technologies still evade convenience and reliability. In search of a preferential method, a group of Harvard University researchers led by Patrick Staples investigated the validity of data collected via patients' own mobile phones. The team, with a cohort of 17 schizophrenia patients, compared the quality of data produced by smartphone sensors and smartphone-delivered questionnaires to that of an in-clinic evaluation. The results significantly showed that smartphone monitoring could generate information that approached the accuracy of in-clinic assessments. The team noted some areas for improvement; however, this study provides convincing justifications for further research into this non-invasive, low-cost, scalable method to monitor the sleep quality of schizophrenic patients. PMID- 29038554 TI - Broadband dual-anisotropic solid metamaterials. AB - We have proposed solid elastic metamaterials with anisotropic stiffness and inertial mass simultaneously, denoted as the dual anisotropy, for the potential use of elastic wave controlling. The dual anisotropy has been designed weakly dispersive in a broad frequency range, wherein broadband anisotropic mass is achieved by employing the sliding-interface concept in fluid-solid composites. Results have been validated through the band-structure, effective-medium, and modal-field analyses. We have further found that the proposed solid metamaterial, when its shear stiffness is diminished until neglected, would reduce to the pentamode-inertial material model. This reduced model is the general form of mediums following transformation acoustic theory, which has been proved vital for acoustic wave controlling. Our studies are expected to pave a new route toward broadband acoustic and elastic wave controlling using dual-anisotropic solid metamaterials. PMID- 29038555 TI - Hybrid Printing Metal-mesh Transparent Conductive Films with Lower Energy Photonically Sintered Copper/tin Ink. AB - With the help of photonic sintering using intensive pulse light (IPL), copper has started to replace silver as a printable conductive material for printing electrodes in electronic circuits. However, to sinter copper ink, high energy IPL has to be used, which often causes electrode destruction, due to unreleased stress concentration and massive heat generated. In this study, a Cu/Sn hybrid ink has been developed by mixing Cu and Sn particles. The hybrid ink requires lower sintering energy than normal copper ink and has been successfully employed in a hybrid printing process to make metal-mesh transparent conductive films (TCFs). The sintering energy of Cu/Sn hybrid films with the mass ratio of 2:1 and 1:1 (Cu:Sn) were decreased by 21% compared to sintering pure Cu film, which is attributed to the lower melting point of Sn for hybrid ink. Detailed study showed that the Sn particles were effectively fused among Cu particles and formed conducting path between them. The hybrid printed Cu/Sn metal-mesh TCF with line width of 3.5 MUm, high transmittance of 84% and low sheet resistance of 14 Omega/? have been achieved with less defects and better quality than printed pure copper metal-mesh TCFs. PMID- 29038556 TI - Structural and Morphological Evolution for Water-resistant Organic Thermoelectrics. AB - We systematically investigated the effect of 2,5-bis(2-hydroxy-3 methacryloyloxypropoxy)-1,4:3,6-dianhydro-sorbitol (Iso-GMA) with different concentrations on the structural and morphological evolution of poly(3,4 ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) containing a fixed volume of dimethyl sulfoxide (DMSO) to realize water-resistant organic thermoelectric devices. As an additive, Iso-GMA is a hydrophilic and crosslinking agent that can interact with PEDOT and PSS chains by hydrogen bonding and/or dipole-dipole- or dipole-charge-interaction. The Seebeck coefficient and power factor in the film incorporating 3.0 vol% DMSO and 0.8 vol% Iso-GMA were respectively 1.82 * 102 and 1.53 * 105% higher than those of the pristine PEDOT:PSS film without additives (DMSO and Iso-GMA). These results can be attributed to the self-assembled and crosslinked fibril networks with optimized phase separation, where the film has densely-packed PEDOT and highly lamellar stacked PSS. Also, the reduced charge carrier concentration from the structural characteristics originated in the higher thermoelectric properties. We introduced the schematic illustration to understand the chemical bonding among the components and the morphological evolution according to the Iso-GMA concentration. The increased mechanical strength by the interchain stacking degree of PEDOT and the crosslinking of Iso-GMA facilitate the film remained in a water bath for 0.5 h without physical degradation, and sustain the thermoelectric properties during 12 h in humid conditons. PMID- 29038557 TI - Anti-Infective Effect of Adhesive Probiotic Lactobacillus in Fish is Correlated With Their Spatial Distribution in the Intestinal Tissue. AB - ABSTRACR: In this study, we tested the distribution of 49 Lactobacillus strains in the mucus and mucosa of the intestine tissue of zebrafish. We observed a progressive change in the spatial distribution of Lactobacillus strains, and suggested a division of the strains into three classes: mucus type (>70% in mucus), mucosa type (>70% in mucosa) and hybrid type (others). The hybrid type strains were more efficient in protection of zebrafish against Aeromonas hydrophila infection. Three strains representing different distribution types (JCM1149, CGMCC1.2028, and JCM 20300) were selected. The mucosa type strain JCM1149 induced higher intestinal expression of inflammatory cytokines and Hsp70 than the other strains. Furthermore, we used L. rhamnosus GG and its mutant (PB22) lacking SpaCBA pili to investigate the influence of pili on spatial distribution. LGG showed a mucosa type distribution, while PB22 revealed a hybrid distribution and the disease protection was accordingly improved. The different protection ability between LGG and PB22 did not involve the intestinal microbiota, however, LGG induced injury to the mucosa of zebrafish. Collectively, the disease protection activity of Lactobacillus in zebrafish is correlated with their spatial distribution in the intestinal tissue, with strains showing a balanced distribution (hybrid type) more efficient in protection. PMID- 29038558 TI - Prokineticin receptor-1-dependent paracrine and autocrine pathways control cardiac tcf21+ fibroblast progenitor cell transformation into adipocytes and vascular cells. AB - Cardiac fat tissue volume and vascular dysfunction are strongly associated, accounting for overall body mass. Despite its pathophysiological significance, the origin and autocrine/paracrine pathways that regulate cardiac fat tissue and vascular network formation are unclear. We hypothesize that adipocytes and vasculogenic cells in adult mice hearts may share a common cardiac cells that could transform into adipocytes or vascular lineages, depending on the paracrine and autocrine stimuli. In this study utilizing transgenic mice overexpressing prokineticin receptor (PKR1) in cardiomyocytes, and tcf21ERT-creTM-derived cardiac fibroblast progenitor (CFP)-specific PKR1 knockout mice (PKR1 tcf-/-), as well as FACS-isolated CFPs, we showed that adipogenesis and vasculogenesis share a common CFPs originating from the tcf21+ epithelial lineage. We found that prokineticin-2 is a cardiomyocyte secretome that controls CFP transformation into adipocytes and vasculogenic cells in vivo and in vitro. Upon HFD exposure, PKR1 tcf-/- mice displayed excessive fat deposition in the atrioventricular groove, perivascular area, and pericardium, which was accompanied by an impaired vascular network and cardiac dysfunction. This study contributes to the cardio-obesity field by demonstrating that PKR1 via autocrine/paracrine pathways controls CFP vasculogenic- and CFP-adipocyte-transformation in adult heart. Our study may open up new possibilities for the treatment of metabolic cardiac diseases and atherosclerosis. PMID- 29038559 TI - Large-scale transport of PM2.5 in the lower troposphere during winter cold surges in China. AB - A comprehensive investigation using the air quality network and meteorological data of China in 2015 showed that PM2.5 driven by cold surges from the ground level could travel up to 2000 km from northern to southern China within two days. Air pollution is more severe and prominent during the winter in north China due to seasonal variations in energy usage, trade wind movements, and industrial emissions. In February 2015, two cold surges traveling from north China caused a temporary increase in the concentration of PM2.5 in Shanghai. Subsequently, the concentration of PM2.5 in Xiamen increased to a high of 80 ug/m3, which is double the average PM2.5 concentration in Xiamen during the winter. This finding is a new long-range transport mechanism comparing to the well-established mechanism, with long-range transport more likely to occur in the upper troposphere than at lower levels. These observations were validated by results from the back trajectory analysis and the RAMS- CMAQ model. While wind speed was found to be a major facilitator in transporting PM2.5 from Beijing to Xiamen, more investigation is required to understand the complex relationship between wind speed and PM2.5 and how it moderates air quality in Beijing, Shanghai, and Xiamen. PMID- 29038560 TI - Safety assessment of antibiotic and probiotic feed additives for Gallus gallus domesticus. AB - Antibiotics in feed select for resistant strains and is thus a threat to human health. In this study, the effect of a multi-strain probiotic and antibiotics on the growth and health of broilers was studied. Equal numbers of broilers received on a daily basis either a multi-strain probiotic or a combination of sulphadiazine, colistin and trimethoprim, whereas the control group received standard feed. The villi of immature broilers (19 days old) administered antibiotics had a larger surface area and their lymphocyte and basophil counts were higher compared to broilers from the probiotic and control groups. The cecal microbiomes of mature broilers (29 days old) that received probiotics had higher levels of Enterobacteriaceae, but lower numbers of Clostridiales, Brucellaceae, Synergistaceae, Erysipelotrichaceae and Coriobacteriaceae compared to the antibiotic-treated group. A decline in the bioluminescence of Listeria monocytogenes observed for broilers on probiotics suggested that the probiotic may be used to control bacterial infections. No significant differences in total red blood cell, haemoglobin and haematocrit content, and mean values for corpuscular volume, corpuscular haemoglobin and corpuscular haemoglobin numbers were recorded amongst broilers from the different treatment groups. This study provides valuable information on the health and performance of broilers when administered probiotics and antibiotics as additives. PMID- 29038562 TI - Interacting Learning Processes during Skill Acquisition: Learning to control with gradually changing system dynamics. AB - There is increasing evidence that sensorimotor learning under real-life conditions relies on a composition of several learning processes. Nevertheless, most studies examine learning behaviour in relation to one specific learning mechanism. In this study, we examined the interaction between reward-based skill acquisition and motor adaptation to changes of object dynamics. Thirty healthy subjects, split into two groups, acquired the skill of balancing a pole on a cart in virtual reality. In one group, we gradually increased the gravity, making the task easier in the beginning and more difficult towards the end. In the second group, subjects had to acquire the skill on the maximum, most difficult gravity level. We hypothesized that the gradual increase in gravity during skill acquisition supports learning despite the necessary adjustments to changes in cart-pole dynamics. We found that the gradual group benefits from the slow increment, although overall improvement was interrupted by the changes in gravity and resulting system dynamics, which caused short-term degradations in performance and timing of actions. In conclusion, our results deliver evidence for an interaction of reward-based skill acquisition and motor adaptation processes, which indicates the importance of both processes for the development of optimized skill acquisition schedules. PMID- 29038563 TI - Use of pulmonary CT angiography with low tube voltage and low-iodine concentration contrast agent to diagnose pulmonary embolism. AB - Pulmonary CT angiography (CTPA) is regarded as the preferred imaging method in diagnosing pulmonary embolism (PE). Considering the harm of radiation exposure and the side effect of iodinated contrast agent, CTPA protocol with low tube voltage and low dose of contrast agent became research hotspot in last decade. The present study evaluates the image quality, radiation dose, positive rate of PE and the location of PE with a CTPA protocol using low tube voltage (80 kVp) and low-iodine-concentration contrast agent (270 mg I/ml) in patients suspected of PE compared to a conventional CTPA protocol (120 kVp, 350 mg I/ml). The results showed that 80 kVp CTPA protocol with 40 ml 270 mg I/ml achieved equally subjective image quality and a positive rate for diagnosing PE, though the quantitative image quality was reduced compared to the 120 kVp CTPA protocol with 40 ml 350 mg I/ml administered, with a 63.6% decrease in radiation dose and a 22.9% reduction in iodine content of contrast agent. Our results document that CTPA protocol with low tube voltage and low iodine concentration of contrast agent is satisfied to the clinical application. PMID- 29038561 TI - Vitamin D and cognitive function: A Mendelian randomisation study. AB - The causal nature of the association between hypovitaminosis D and poor cognitive function in mid- to later-life is uncertain. Using a Mendelian randomisation(MR) approach, we examined the causal relationship between 25(OH)D and cognitive function. Data came from 172,349 participants from 17 cohorts. DHCR7(rs12785878), CYP2R1 rs12794714) and their combined synthesis score were chosen to proxy 25(OH)D. Cognitive tests were standardised into global and memory scores. Analyses were stratified by 25(OH)D tertiles, sex and age. Random effects meta analyses assessed associations between 25(OH)D and cognitive function. Associations of serum 25(OH)D with global and memory-related cognitive function were non-linear (lower cognitive scores for both low and high 25(OH)D, p curvature <= 0.006), with much of the curvature attributed to a single study. DHCR7, CYP2R1, and the synthesis score were associated with small reductions in 25(OH)D per vitamin D-decreasing allele. However, coefficients for associations with global or memory-related cognitive function were non-significant and in opposing directions for DHCR7 and CYP2R1, with no overall association observed for the synthesis score. Coefficients for the synthesis score and global and memory cognition were similar when stratified by 25(OH)D tertiles, sex and age. We found no evidence for serum 25(OH)D concentration as a causal factor for cognitive performance in mid- to later life. PMID- 29038565 TI - Prediction of high-pressure phases of Weyl semimetal NbAs and NbP. AB - As the first known Weyl semimetals, binary compounds including TaP, TaAs, NbAs, and NbP have received worldwide interest. This work explored the phase behaviours of NbAs and NbP under high pressure up to 200 GPa via first-principles calculations combined with intelligent particle swarm optimization. Upon compression, a new phase of NbAs with P-6m2 symmetry appeared above 23 GPa and remained stable until 38 GPa, whereupon a monoclinic structure with space group P2 1 /c became more energetically favourable. This lasted until 73 GPa, when a Pm 3m phase followed. Surprisingly, NbP underwent a single phase transition around 63.5 GPa to a new phase with Cmcm symmetry that was completely distinct from the structures shown by TaAs-class compounds such as NbAs and TaAs. All these newly pressure-stabilized structures were dynamically stable at both high and ambient pressure. Electronic band structure calculations revealed a transition from semimetal to metal under high pressure. This work is meaningful and fundamental for future studies and applications of TaAs-class Weyl semimetals under compression or extreme conditions. PMID- 29038564 TI - A quantitative comparison of cytosolic delivery via different protein uptake systems. AB - Over many years, a variety of delivery systems have been investigated that have the capacity to shuttle macromolecular cargoes, especially proteins, into the cytosol. Due to the lack of an objective way to quantify cytosolic delivery, relative delivery efficiencies of the various transport systems have remained unclear. Here, we demonstrate the use of the biotin ligase assay for a quantitative comparison of protein transport to the cytosol via cell-penetrating peptides, supercharged proteins and bacterial toxins in four different cell lines. The data illustrate large differences in both the total cellular internalization, which denotes any intracellular location including endosomes, and in the cytosolic uptake of the transport systems, with little correlation between the two. Also, we found significant differences between the cell lines. In general, protein transport systems based on cell-penetrating peptides show a modest total uptake, and mostly do not deliver cargo to the cytosol. Systems based on bacterial toxins show a modest receptor-mediated internalization but an efficient delivery to the cytosol. Supercharged proteins, on the contrary, are not receptor-specific and lead to massive total internalization into endosomes, but only low amounts end up in the cytosol. PMID- 29038566 TI - Structural variability and complexity of the giant Pithovirus sibericum particle revealed by high-voltage electron cryo-tomography and energy-filtered electron cryo-microscopy. AB - The Pithoviridae giant virus family exhibits the largest viral particle known so far, a prolate spheroid up to 2.5 MUm in length and 0.9 MUm in diameter. These particles show significant variations in size. Little is known about the structure of the intact virion due to technical limitations with conventional electron cryo-microscopy (cryo-EM) when imaging thick specimens. Here we present the intact structure of the giant Pithovirus sibericum particle at near native conditions using high-voltage electron cryo-tomography (cryo-ET) and energy filtered cryo-EM. We detected a previously undescribed low-density outer layer covering the tegument and a periodical structuring of the fibres in the striated apical cork. Energy-filtered Zernike phase-contrast cryo-EM images show distinct substructures inside the particles, implicating an internal compartmentalisation. The density of the interior volume of Pithovirus particles is three quarters lower than that of the Mimivirus. However, it is remarkably high given that the 600 kbp Pithovirus genome is only half the size of the Mimivirus genome and is packaged in a volume up to 100 times larger. These observations suggest that the interior is densely packed with macromolecules in addition to the genomic nucleic acid. PMID- 29038568 TI - Impact of Coulomb Correlations on Magnetic Anisotropy in Mn3Ga Ferrimagnet. AB - Traditional density functional theory (DFT) miserably fails to reproduce the experimental volume and magnetic anisotropy of D022 Mn3Ga, which has recently become one of the most sought-after materials in order to achieve a stable spin switching at low current density. Despite great progress over the last 10 years, this issue has hitherto remained unsolved. Here, taking into account the effects of strong electronic correlations beyond what is included in standard DFT, we show by comparison with the experiment that the DFT+U method is capable of quantitatively describing the volume and the magnetic anisotropy energy (MAE) in this alloy with physically meaningful choice of onsite Coulomb-U parameter. For the first time using a plane-wave code, we decompose MAE into spin channel resolved components in order to determine spin-flip and spin-conserving contributions. The Mn atom at the tetrahedral site is identified as the primary source of the high perpendicular MAE with the most dominant spin-orbit coupling (SOC) occurring between its two orbital pairs: ?? coupling and ?? coupling between [Formula: see text] and d xy , and ?? coupling between d yz and [Formula: see text]. Using the SOC-perturbation theory model, we provide interpretation of our numerical results. These results are important for quantitative microscopic understanding of the large perpendicular MAE observed in this material, and should assist in harnessing its potential for applications in futuristic spintronic devices. PMID- 29038567 TI - Stabilization of mouse haploid embryonic stem cells with combined kinase and signal modulation. AB - Mammalian haploid embryonic stem cells (haESCs) provide new possibilities for large-scale genetic screens because they bear only one copy of each chromosome. However, haESCs are prone to spontaneous diploidization through unknown mechanisms. Here, we report that a small molecule combination could restrain mouse haESCs from diploidization by impeding exit from naive pluripotency and by shortening the S-G2/M phases. Combined with 2i and PD166285, our chemical cocktail could maintain haESCs in the haploid state for at least five weeks without fluorescence-activated cell sorting (FACS) enrichment of haploid cells. Taken together, we established an effective chemical approach for long-term maintenance of haESCs, and highlighted that proper cell cycle progression was critical for the maintenance of haploid state. PMID- 29038569 TI - The Incipient Motion Features of Sediment from Yangtze Estuary: Annular Flume Experiments. AB - In this study, annular flume experiments are carried out, using the sediment samples collected from Yangtze estuary. The incipient velocity and the incipient shear stress of three different groups of median grain size of sediment are given. The turbulent kinetic energy method (TKE) is used to determine the bed shear stress (tau), by evaluating variations in the suspended sediment concentration (SSC) within the water column. The suspended sediment concentration increases with the increase of the bed shear stress. When the sediment concentration reaches a certain concentration, the rate of change in tau obviously slows down. As the concentration increasing again, the bed shear stress grows rapidly with different growth rate attributed to different grain size. The results of the experiments indicate that SSC and grain size have strong influence on tau. PMID- 29038570 TI - Spin-polarised electrons in a one-magnet-only Mott spin junction. AB - The current flowing through a Mott spin junction depends on the relative spin orientation of the two ferromagnetic layers comprising the "source" and "drain" sides of the junction. The resulting current asymmetry is detected as giant or tunnelling magnetoresistance depending on whether the two ferromagnets are separated by a metal or an insulator. Based on the fundamental principles of reciprocity for spin-dependent electron scattering, one can envisage a one-magnet only spin junction in which the source is non-magnetic, and the spin information is encoded by the spin polarisation of the electrons that have crossed or are backscattered from the drain magnetic layer. The practical significance of using an unpolarised source is that the state of the magnetic layer can be modified without affecting the process of probing it. Whether this reciprocity is realised in the actual junctions is not yet known. Here, we demonstrate a nano-sized, one magnet-only Mott spin junction by measuring the finite spin polarisation of the backscattered electrons. Based on this finding, we conclude that since the junction acts as a spin filter, the magnetic layer must experience a spin transfer that could become detectable in view of the high current densities achievable in this technology. PMID- 29038571 TI - Highly sensitive and specific Alu-based quantification of human cells among rodent cells. AB - Alu elements are primate-specific short interspersed elements (SINEs), over 1 million copies of which are present in the human genome; thus, Alu elements are useful targets for detecting human cells. However, previous Alu-based techniques for detecting human genomic DNA do not reach the theoretical limits of sensitivity and specificity. In this study, we developed a highly sensitive and specific Alu-based real-time PCR method for discriminating human cells from rodent cells, using a primer and probe set carefully designed to avoid possible cross-reactions with rodent genomes. From 100 ng of mixed human and rodent genomes, 1 fg of human genome, equivalent to 1 human cell in 100 million rodent cells, was detectable. Furthermore, in vivo mouse subrenal capsule xenotransplantation assays revealed that 10 human cells per mouse organ were detectable. In addition, after intravenous injection of human mesenchymal stem cells into NOD/SCID mice via tail vein, the biodistribution of human cells was trackable in the mouse lungs and kidneys for at least 1 week. Our findings indicate that our primer and probe set is applicable for the quantitative detection of tiny amounts of human cells, such as xenotransplanted human cancer or stem cells, in rodents. PMID- 29038572 TI - Higher-order Network Analysis of Fine Particulate Matter (PM 2.5) Transport in China at City Level. AB - Specification of PM 2.5 transmission characteristics is important for pollution control and policymaking. We apply higher-order organization of complex networks to identify major potential PM 2.5 contributors and PM 2.5 transport pathways of a network of 189 cities in China. The network we create in this paper consists of major cities in China and contains information on meteorological conditions of wind speed and wind direction, data on geographic distance, mountains, and PM 2.5 concentrations. We aim to reveal PM 2.5 mobility between cities in China. Two major conclusions are revealed through motif analysis of complex networks. First, major potential PM 2.5 pollution contributors are identified for each cluster by one motif, which reflects movements from source to target. Second, transport pathways of PM 2.5 are revealed by another motif, which reflects transmission routes. To our knowledge, this is the first work to apply higher-order network analysis to study PM 2.5 transport. PMID- 29038573 TI - Significantly enhanced thermal conductivity of indium arsenide nanowires via sulfur passivation. AB - ABSTARCT: In this work, we experimentally investigated the effect of sulfur passivation on thermal transport in indium arsenide (InAs) nanowires. Our measurement results show that thermal conductivity can be enhanced by a ratio up to 159% by sulfur passivation. Current-voltage (I-V) measurements were performed on both unpassivated and S-passivated InAs nanowires to understand the mechanism of thermal conductivity enhancement. We observed a remarkable improvement in electrical conductivity upon sulfur passivation and a significant contribution of electrons to thermal conductivity, which account for the enhanced thermal conductivity of the S-passivated InAs nanowires. PMID- 29038574 TI - Annual community patterns are driven by seasonal switching between closely related marine bacteria. AB - This corrects the article DOI: 10.1038/ismej.2017.4. PMID- 29038575 TI - Human rickettsial pathogen modulates arthropod organic anion transporting polypeptide and tryptophan pathway for its survival in ticks. AB - The black-legged tick Ixodes scapularis transmits the human anaplasmosis agent, Anaplasma phagocytophilum. In this study, we show that A. phagocytophilum specifically up-regulates I. scapularis organic anion transporting polypeptide, isoatp4056 and kynurenine amino transferase (kat), a gene involved in the production of tryptophan metabolite xanthurenic acid (XA), for its survival in ticks. RNAi analysis revealed that knockdown of isoatp4056 expression had no effect on A. phagocytophilum acquisition from the murine host but affected the bacterial survival in tick cells. Knockdown of the expression of kat mRNA alone or in combination with isoatp4056 mRNA significantly affected A. phagocytophilum survival and isoatp4056 expression in tick cells. Exogenous addition of XA induces isoatp4056 expression and A. phagocytophilum burden in both tick salivary glands and tick cells. Electrophoretic mobility shift assays provide further evidence that A. phagocytophilum and XA influences isoatp4056 expression. Collectively, this study provides important novel information in understanding the interplay between molecular pathways manipulated by a rickettsial pathogen to survive in its arthropod vector. PMID- 29038576 TI - Size effect on the deformation mechanisms of nanocrystalline platinum thin films. AB - This paper reports a study of time-resolved deformation process at the atomic scale of a nanocrystalline Pt thin film captured in situ under a transmission electron microscope. The main mechanism of plastic deformation was found to evolve from full dislocation activity-enabled plasticity in large grains (with grain size d > 10 nm), to partial dislocation plasticity in smaller grains (with grain size 10 nm < d < 6 nm), and grain boundary-mediated plasticity in the matrix with grain sizes d < 6 nm. The critical grain size for the transition from full dislocation activity to partial dislocation activity was estimated based on consideration of stacking fault energy. For grain boundary-mediated plasticity, the possible contributions to strain rate of grain creep, grain sliding and grain rotation to plastic deformation were estimated using established models. The contribution of grain creep is found to be negligible, the contribution of grain rotation is effective but limited in magnitude, and grain sliding is suggested to be the dominant deformation mechanism in nanocrystalline Pt thin films. This study provided the direct evidence of these deformation processes at the atomic scale. PMID- 29038577 TI - Morphology engineering of Streptomyces coelicolor M145 by sub-inhibitory concentrations of antibiotics. AB - Growth of Streptomyces in submerged culture is characterized by the formation of complex mycelial particles, known as pellets or clumps, which strongly influence antibiotic production. Also, many bioactive molecules produced by Streptomyces have great potential to modulate soil bacteria morphological development. However, there has been no effort directed at engineering mycelial morphology using these small molecules. Here, thiostrepton was identified, using a combination of qRT-PCR, semi-preparative HPLC, and MALDI-TOF MS, as a pellet inducing compound produced by S. laurentii ATCC31255. At sub-inhibitory concentration, thiostrepton stimulated Streptomyces coelicolor M145 pellet formation and antibiotics production were altered, with 3-fold and 2-fold decreases in actinorhodin and undecylprodigiosin yields, respectively. It was also shown that mycelial morphology can be influenced by other antibiotic class at sub-inhibitory concentrations. For instance, in the presence of spectinomycin, S. coelicolor M145, which under typical growth conditions forms large diameter pellets with many protruding hyphae, instead formed small diameter pellets with barely visible hyphae at the edge. Importantly, this morphology produced a 4-fold increase in undecylprodigiosin production and 3-fold decrease in actinorhodin production. These results indicated that these small molecules, previously identified as antimicrobials, also have great potential for influencing mycelial morphology. PMID- 29038578 TI - Conversion of FeCo from soft to hard magnetic material by lattice engineering and nanopatterning. AB - The development of magnetic materials with large uniaxial magnetic anisotropy (K u) and high saturation magnetization has attracted much attention in various areas such as high-density magnetic storage, spintronic devices, and permanent magnets. Although FeCo alloys with the body-centred cubic structure exhibit the highest M s among all transition metal alloys, their low K u and coercivity (H c) make them unsuitable for these applications. However, recent first-principles calculations have predicted large K u for the FeCo films with the body-centred tetragonal structure. In this work, we experimentally investigated the hard magnetic properties and magnetic domain structures of nanopatterned FeCo alloy thin films. As a result, a relatively large value of the perpendicular uniaxial magnetic anisotropy K u = 2.1 * 106 J.m-3 was obtained, while the H c of the nanopatterned FeCo layers increased with decreasing dot pattern size. The maximum H c measured in this study was 4.8 * 105 A.m-1, and the corresponding value of MU 0 H c was 0.60 T, where MU 0 represented the vacuum permeability. PMID- 29038579 TI - Synthesis of single-phase L10-FeNi magnet powder by nitrogen insertion and topotactic extraction. AB - Tetrataenite (L10-FeNi) is a promising candidate for use as a permanent magnet free of rare-earth elements because of its favorable properties. In this study, single-phase L10-FeNi powder with a high degree of order was synthesized through a new method, nitrogen insertion and topotactic extraction (NITE). In the method, FeNiN, which has the same ordered arrangement as L10-FeNi, is formed by nitriding A1-FeNi powder with ammonia gas. Subsequently, FeNiN is denitrided by topotactic reaction to derive single-phase L10-FeNi with an order parameter of 0.71. The transformation of disordered-phase FeNi into the L10 phase increased the coercive force from 14.5 kA/m to 142 kA/m. The proposed method not only significantly accelerates the development of magnets using L10-FeNi but also offers a new synthesis route to obtain ordered alloys in non-equilibrium states. PMID- 29038580 TI - A novel library of -arylketones as potential inhibitors of alpha-glucosidase: Their design, synthesis, in vitro and in vivo studies. AB - alpha-glucosidase is an essential enzyme located at the brush border of intestines. It is an important therapeutic target for type II diabetes. Herein we have designed a library of novel alpha-arylketones as inhibitors of alpha glucosidase (yeast origin) via scaffold hopping and bioisosteric modification of known inhibitors of alpha-glucosidase. The design was validated through molecular docking that revealed strong binding interactions of the newly designed compounds against alpha-glucosidase. A library comprising of 15 compounds was synthesized in a combinatorial fashion, where the advanced amide intermediates were accessed through "shot gun" synthesis. The final compounds were characterized by 1H, 13C NMR and with high resolution mass spectroscopy. In vitro screening of the compounds against yeast alpha-glucosidase revealed substantial inhibition with IC50s in the range of 4-10 MUM (the standard drug acarbose inhibits alpha glucosidase with an IC50 of 9.95 MUM). Reaction kinetics suggested mixed type inhibition. Finally, in vivo studies of the most active compound 3c against Streptozotocin induced male albino Wistar rats revealed that its administration in the rats for about 4 weeks lead to a highly significant (P < 0.001) decrease in the fasting blood glucose (FBG) compared to the untreated diabetic rats. Moreover, lower dose of 3c had better control over FBG in contrast to high-dose. PMID- 29038581 TI - Transcriptional repression of Plxnc1 by Lmx1a and Lmx1b directs topographic dopaminergic circuit formation. AB - Mesodiencephalic dopamine neurons play central roles in the regulation of a wide range of brain functions, including voluntary movement and behavioral processes. These functions are served by distinct subtypes of mesodiencephalic dopamine neurons located in the substantia nigra pars compacta and the ventral tegmental area, which form the nigrostriatal, mesolimbic, and mesocortical pathways. Until now, mechanisms involved in dopaminergic circuit formation remained largely unknown. Here, we show that Lmx1a, Lmx1b, and Otx2 transcription factors control subtype-specific mesodiencephalic dopamine neurons and their appropriate axon innervation. Our results revealed that the expression of Plxnc1, an axon guidance receptor, is repressed by Lmx1a/b and enhanced by Otx2. We also found that Sema7a/Plxnc1 interactions are responsible for the segregation of nigrostriatal and mesolimbic dopaminergic pathways. These findings identify Lmx1a/b, Otx2, and Plxnc1 as determinants of dopaminergic circuit formation and should assist in engineering mesodiencephalic dopamine neurons capable of regenerating appropriate connections for cell therapy.Midbrain dopaminergic neurons (mDAs) in the VTA and SNpc project to different regions and form distinct circuits. Here the authors show that transcription factors Lmx1a, Lmx1b, and Otx2 control the axon guidance of mDAs and the segregation of mesolimbic and nigrostriatal dopaminergic pathways. PMID- 29038582 TI - Direct visualization of critical hydrogen atoms in a pyridoxal 5'-phosphate enzyme. AB - Enzymes dependent on pyridoxal 5'-phosphate (PLP, the active form of vitamin B6) perform a myriad of diverse chemical transformations. They promote various reactions by modulating the electronic states of PLP through weak interactions in the active site. Neutron crystallography has the unique ability of visualizing the nuclear positions of hydrogen atoms in macromolecules. Here we present a room temperature neutron structure of a homodimeric PLP-dependent enzyme, aspartate aminotransferase, which was reacted in situ with alpha-methylaspartate. In one monomer, the PLP remained as an internal aldimine with a deprotonated Schiff base. In the second monomer, the external aldimine formed with the substrate analog. We observe a deuterium equidistant between the Schiff base and the C terminal carboxylate of the substrate, a position indicative of a low-barrier hydrogen bond. Quantum chemical calculations and a low-pH room-temperature X-ray structure provide insight into the physical phenomena that control the electronic modulation in aspartate aminotransferase.Pyridoxal 5'-phosphate (PLP) is a ubiquitous co factor for diverse enzymes, among them aspartate aminotransferase. Here the authors use neutron crystallography, which allows the visualization of the positions of hydrogen atoms, and computation to characterize the catalytic mechanism of the enzyme. PMID- 29038583 TI - Zdhhc13-dependent Drp1 S-palmitoylation impacts brain bioenergetics, anxiety, coordination and motor skills. AB - Protein S-palmitoylation is a reversible post-translational modification mediated by palmitoyl acyltransferase enzymes, a group of Zn2+-finger DHHC-domain containing proteins (ZDHHC). Here, for the first time, we show that Zdhhc13 plays a key role in anxiety-related behaviors and motor function, as well as brain bioenergetics, in a mouse model (luc) carrying a spontaneous Zdhhc13 recessive mutation. At 3 m of age, mutant mice displayed increased sensorimotor gating, anxiety, hypoactivity, and decreased motor coordination, compared to littermate controls. Loss of Zdhhc13 in cortex and cerebellum from 3- and 24 m old hetero- and homozygous male mutant mice resulted in lower levels of Drp1 S-palmitoylation accompanied by altered mitochondrial dynamics, increased glycolysis, glutaminolysis and lactic acidosis, and neurotransmitter imbalances. Employing in vivo and in vitro models, we identified that Zdhhc13-dependent Drp1 S palmitoylation, which acting alone or in concert, enables the normal occurrence of the fission-fusion process. In vitro and in vivo direct Zdhhc13-Drp1 protein interaction was observed, confirming Drp1 as a substrate of Zdhhc13. Abnormal fission-fusion processes result in disrupted mitochondria morphology and distribution affecting not only mitochondrial ATP output but neurotransmission and integrity of synaptic structures in the brain, setting the basis for the behavioral abnormalities described in the Zdhhc13-deficient mice. PMID- 29038584 TI - Dual-Drug Containing Core-Shell Nanoparticles for Lung Cancer Therapy. AB - Late-stage diagnosis of lung cancer occurs ~95% of the time due to late manifestation of its symptoms, necessitating rigorous treatment following diagnosis. Existing treatment methods are limited by lack of specificity, systemic toxicity, temporary remission, and radio-resistance in lung cancer cells. In this research, we have developed a folate receptor-targeting multifunctional dual drug-loaded nanoparticle (MDNP) containing a poly(N isopropylacrylamide)-carboxymethyl chitosan shell and poly lactic-co-glycolic acid (PLGA) core for enhancing localized chemo-radiotherapy to effectively treat lung cancers. The formulation provided controlled releases of the encapsulated therapeutic compounds, NU7441 - a potent radiosensitizer, and gemcitabine - an FDA approved chemotherapeutic drug for lung cancer chemo-radiotherapy. The MDNPs showed biphasic NU7441 release and pH-dependent release of gemcitabine. These nanoparticles also demonstrated good stability, excellent hemocompatibility, outstanding in vitro cytocompatibility with alveolar Type I cells, and dose dependent caveolae-mediated in vitro uptake by lung cancer cells. In addition, they could be encapsulated with superparamagnetic iron oxide (SPIO) nanoparticles and visualized by MRI in vivo. Preliminary in vivo results demonstrated the low toxicity of these particles and their use in chemo-radiotherapy to effectively reduce lung tumors. These results indicate that MDNPs can potentially be used as nano-vehicles to provide simultaneous chemotherapy and radiation sensitization for lung cancer treatment. PMID- 29038585 TI - Tissue and plasma levels of galectins in patients with high grade serous ovarian carcinoma as new predictive biomarkers. AB - Galectins are moving closer to center stage in detecting glycosylation aberration in cancer cells. Here, we have investigated the expression of galectins in ovarian cancer (OC) and examined their potential as biomarkers in tissues and blood plasma samples of high grade serous ovarian carcinoma (HGSC) patients. In tissues, we found that increased protein expression of stromal gal-1 and epithelial gal-8/9 was associated with a poor response to treatment of HGSC patients. Gal-8/9 were both independent predictors of chemoresistance and overall survival (OS), respectively. This galectin signature increased the predictive value of the cancer antigen 125 (CA125) on 5-year disease-free survival (DFS), post-chemotherapy treatment and 5-year OS. In CA125LOW patients, epithelial gal-9 was associated with a lower 5-year OS while stromal gal-1 and epithelial gal-8 were both associated with a lower 5-year DFS. Such negative predictive value of gal-8 and gal-9 was also found using plasma samples. In both cases, high plasma levels of gal-8 and gal-9 was associated with a lower OS and DFS. Overall, these data suggest that galectins may be promising biomarkers to identify subgroups of HGSC patients with poorer prognosis. Our study also contributes to better define the heterogeneity of the disease. PMID- 29038586 TI - Invariant nature of substituted element in metal-hexacyanoferrate. AB - The chemical substitution of a transition metal (M) is an effective method to improve the functionality of materials. In order to design the highly functional materials, we first have to know the local structure and electronic state around the substituted element. Here, we systematically investigated the local structure and electronic state of the host (M h) and guest (M g) transition metals in metal hexacyanoferrate (M-HCF), Na x (M h, M g)[Fe(CN)6] y (1.40 < x < 1.60 and 0.85 < y < 0.90), by means of extended X-ray absorption fine structure (EXAFS) and X-ray absorption near-edge structure (XANES) analyses. The EXAFS and XANES analyses revealed that the local structure and electronic state around M g are essentially the same as those in the pure compound, i.e, M g-HCF. Such an invariant nature of M g in M-HCF is in sharp contrast with that in layered oxide, in which the M g valence changes so that local M g-O distance (d M-Og) approaches the M h-O distance (d M-Oh). PMID- 29038588 TI - Patterns and underlying mechanisms of non-volant small mammal richness along two contrasting mountain slopes in southwestern China. AB - The species richness patterns of small mammals and the processes shaping them in two gradients of a mountain with different spatial and climatic characteristics were examined using standard sampling scheme. We trapped 2,006 small mammals representing 37 species, along elevational gradients on both western and eastern slopes of the Ailao Mountains, Southwest China. Using mid-domain effect model, model selection and model averaging, we examined the effects of slope, area, mean annual temperature (MAT), mean annual humidity (MAH), productivity, plant species richness (PSR) and the mid-domain effect (MDE) on the patterns of small mammal diversity. The hump-shaped patterns were favored along the elevational gradient, but shapes of diversity curves were different on the contrasting slopes. Area and productivity were the most important factors in explaining the variation of total species richness. However, for each specific group of small mammals (i.e. insectivores vs. rodents, large-ranged vs. small-ranged species, endemic vs. non endemic species), the peaks of species richness and their primary drivers varied. The major explanatory factors for richness pattern of each small mammal group were not significantly different between the slopes, suggesting the existence of the general underlying mechanisms on two slopes of a mountain. PMID- 29038587 TI - Cell-surface major vault protein promotes cancer progression through harboring mesenchymal and intermediate circulating tumor cells in hepatocellular carcinomas. AB - Circulating tumor cells (CTCs) play a major role in the metastasis and recurrence of hepatocellular carcinoma (HCC). Here, we found that major vault protein (MVP) is expressed on the surface of HCC cells and further induced under stressful environments. MVP knockdown reduces cell proliferation and induces apoptosis in HCC cells. Treatment of HCC cells with anti-MVP antibody (alpha-MVP) recognizing cell-surface MVP (csMVP) inhibits cell proliferation, migration, and invasion. csMVP-positive HCC cells have a higher clonogenic survival than csMVP-negative HCC cells, and treatment of HCC cells with alpha-MVP inhibits clonogenic survival, suggesting that csMVP contributes to HCC cell survival, migration, and invasion. The function of csMVP is mediated through mTOR, FAK, ERK and Akt signaling pathways. csMVP-positive CTCs are detected in HCC patients (89.7%) but not in healthy donors, and the number of csMVP-positive CTCs is further increased in patients with metastatic cancers. csMVP is exclusively detectable in CTCs with mesenchymal phenotype or intermediate phenotype with neither epithelial nor mesenchymal markers, suggesting that csMVP-associated survival and metastatic potential harbor CTCs with nonepithelial phenotypes. The results suggest that csMVP promotes cancer progression and serves as a surface marker for mesenchymal and intermediate CTCs in patients with HCC and metastatic cancers. PMID- 29038589 TI - Estimation of the age of human bloodstains under the simulated indoor and outdoor crime scene conditions by ATR-FTIR spectroscopy. AB - Estimation of the age of human bloodstains is of great importance in forensic practices, but it is a challenging task because of the lack of a well-accepted, reliable, and established method. Here, the attenuated total reflection (ATR) Fourier transform infrared (FTIR) technique combined with advanced chemometric methods was utilized to determine the age of indoor and outdoor bloodstains up to 107 days. The bloodstain storage conditions mimicked crime scene scenarios as closely as possible. Two partial least squares regression models-indoor and outdoor models with 7-85 days-exhibited good performance for external validation, with low values of predictive root mean squared error (5.83 and 4.77) and high R2 values (0.94 and 0.96) and residual predictive deviation (4.08 and 5.14), respectively. Two partial least squares-discriminant analysis classification models were built and demonstrated excellent distinction between fresh (age <=1 d) and older (age >1 d) bloodstains, which is highly valuable for forensic investigations. These findings demonstrate that ATR-FTIR spectroscopy coupled with advanced chemometric methods can be employed as a rapid and non-destructive tool for age estimation of bloodstains in real-world forensic investigation. PMID- 29038590 TI - Chronic hepatitis C liver microenvironment: role of the Th17/Treg interplay related to fibrogenesis. AB - The role of the different lymphocyte populations in liver microenvironment of chronic hepatitis C (CHC) patients is still matter of debate. Since Th17 and Treg have opposite functions, their balance could affect disease progression. The aim was to explore liver microenvironment and its peripheral blood counterpart in adult CHC patients. CD4+ lymphocytes were predominant in the liver, with high Foxp3+ but low IL-17A+ frequency. IL-17A+ lymphocytes and IL-17A+/Foxp3+ ratio displayed association with advanced fibrosis (p = 0.0130; p = 0.0236, respectively), while Foxp3+ lymphocytes and IL-10 expression level inversely correlated with fibrosis severity (p = 0.0381, p = 0.0398, respectively). TGF beta/IL-6 ratio correlated with IL-17A+/Foxp3+ ratio (p = 0.0036, r = 0.5944) and with IL-17A+ lymphocytes (p = 0.0093; r = 0.5203). TNF-alpha and TGF-beta were associated with hepatitis severity (p = 0.0409, p = 0.0321). Peripheral blood lymphocyte frequency was not associated with liver damage. There are functionally different immune cell populations actively involved in liver damage, but the liver cytokine milieu actually drives the pathogenesis. The intrahepatic Foxp3+ lymphocytes predominance beside the low IL-17A+ lymphocytes frequency, delineate a skewed IL-17A+/Foxp3+ balance towards Foxp3+ lymphocytes. However, the IL-17A+ lymphocytes association with advanced fibrosis denotes their role in the pathogenesis. Therefore, the interplay between Th17 and Treg conditions liver fibrogenesis. PMID- 29038591 TI - Genomics alterations of metastatic and primary tissues across 15 cancer types. AB - Metastasis is an important event for cancer evolution and prognosis. In this article, we analyzed the differences in genomic alterations between primary and metastatic tissues at hotspot regions in 15 cancer types and 10,456 samples. Differential somatic mutations at the amino acid, protein domain and gene levels, mutational exclusiveness, and copy number variations were identified in these cancers, while no significant nucleotide and gene fusion differences were detected. The homogeneity and heterogeneity of these differences in cancers were also detected. By characterizing the genomic alterations of these genes, important signaling pathways during metastasis were also identified. In summary, the metastatic cancer tissues retained most genomic features of the primary tumor at the biological level and acquired new signatures during cancer cell migration. PMID- 29038592 TI - In vivo imaging of lung inflammation with neutrophil-specific 68Ga nano radiotracer. AB - In vivo detection and quantification of inflammation is a major goal in molecular imaging. Furthermore, cell-specific detection of inflammation would be a tremendous advantage in the characterization of many diseases. Here, we show how this goal can be achieved through the synergistic combination of nanotechnology and nuclear imaging. One of the most remarkable features of this hybrid approach is the possibility to tailor the pharmacokinetics of the nanomaterial incorporated biomolecule and radionuclide. A good example of this approach is the covalent binding of a large amount of a neutrophil-specific, hydrophobic peptide on the surface of 68Ga core-doped nanoparticles. This new nano-radiotracer has been used for non-invasive in vivo detection of acute inflammation with very high in vivo labelling efficiency, i.e. a large percentage of labelled neutrophils. Furthermore, we demonstrate that the tracer is neutrophil-specific and yields images of neutrophil recruitment of unprecedented quality. Finally, the nano radiotracer was successfully detected in chronic inflammation in atherosclerosis prone ApoE-/- mice after several weeks on a high-fat diet. PMID- 29038593 TI - Gender-and lesion number-dependent difference in "atherogenic index of plasma" in Chinese people with coronary heart disease. AB - Few studies has investigated the interrelationship between Atherogenic index of plasma (AIP) and coronary heart disease (CHD) especially in Asians. AIP is the logarithmically transformed ratio of triglyceride (TG) to high-density lipoprotein cholesterol (HDL-C), and is thought to be associated with arteriosclerosis, hypertension, diabetes and cardiovascular diseases. Of the 463 patients from Central Hospital of Nanchong in 2011-2014 diagnosed with angiograms, 229 CHD (>50% stenosis in one or more arteries) and the rest 234 were the controls (maximum stenosis < 10% in any artery) according to the world health organization (who) diagnostic criteria. The multiple regression analysis showed that AIP was independently associated with CHD in men (odds ratio (OR) = 4.44, 95%CI 1.62-12.21, P = 0.004) after adjusting for age, body mass index (BMI), fasting blood glucose(FBG), homocysteine (Hcy), and smoking, but not in women (OR = 0.47, 95%CI 0.11-2.08, P = 0.318). Subgroup analysis showed that the significant difference in AIP between the CHD and the controls only exists in patients with multi-vessel lesions but not in those with single-vessel lesion. Further large-scale studies with balanced sex ratio and vessel lesion numbers should verify the present findings. PMID- 29038594 TI - Synthetic nanocomposite MgH2/5 wt. % TiMn2 powders for solid-hydrogen storage tank integrated with PEM fuel cell. AB - Storing hydrogen gas into cylinders under high pressure of 350 bar is not safe and still needs many intensive studies dedic ated for tank's manufacturing. Liquid hydrogen faces also severe practical difficulties due to its very low density, leading to larger fuel tanks three times larger than traditional gasoline tank. Moreover, converting hydrogen gas into liquid phase is not an economic process since it consumes high energy needed to cool down the gas temperature to -252.8 degrees C. One practical solution is storing hydrogen gas in metal lattice such as Mg powder and its nanocomposites in the form of MgH2. There are two major issues should be solved first. One related to MgH2 in which its inherent poor hydrogenation/dehydrogenation kinetics and high thermal stability must be improved. Secondly, related to providing a safe tank. Here we have succeeded to prepare a new binary system of MgH2/5 wt. % TiMn2 nanocomposite powder that show excellent hydrogenation/dehydrogenation behavior at relatively low temperature (250 degrees C) with long cycle-life-time (1400 h). Moreover, a simple hydrogen storage tank filled with our synthetic nanocomposite powders was designed and tested in electrical charging a battery of a cell phone device at 180 degrees C through a commercial fuel cell. PMID- 29038595 TI - Covariate selection for association screening in multiphenotype genetic studies. AB - Testing for associations in big data faces the problem of multiple comparisons, wherein true signals are difficult to detect on the background of all associations queried. This difficulty is particularly salient in human genetic association studies, in which phenotypic variation is often driven by numerous variants of small effect. The current strategy to improve power to identify these weak associations consists of applying standard marginal statistical approaches and increasing study sample sizes. Although successful, this approach does not leverage the environmental and genetic factors shared among the multiple phenotypes collected in contemporary cohorts. Here we developed covariates for multiphenotype studies (CMS), an approach that improves power when correlated phenotypes are measured on the same samples. Our analyses of real and simulated data provide direct evidence that correlated phenotypes can be used to achieve increases in power to levels often surpassing the power gained by a twofold increase in sample size. PMID- 29038596 TI - A quantitative genetic framework highlights the role of epistatic effects for grain-yield heterosis in bread wheat. AB - Increasing wheat yield is a key global challenge to producing sufficient food for a growing human population. Wheat grain yield can be boosted by exploiting heterosis, the superior performance of hybrids compared with midparents. Here we present a tailored quantitative genetic framework to study the genetic basis of midparent heterosis in hybrid populations derived from crosses among diverse parents. We applied this framework to an extensive data set assembled for winter wheat. Grain yield was assessed for 1,604 hybrids and their 135 parental elite breeding lines in 11 environments. The hybrids outperformed the midparents by 10% on average, representing approximately 15 years of breeding progress in wheat, thus further substantiating the remarkable potential of hybrid-wheat breeding. Genome-wide prediction and association mapping implemented through the developed quantitative genetic framework showed that dominance effects played a less prominent role than epistatic effects in grain-yield heterosis in wheat. PMID- 29038597 TI - Simultaneous visualisation of calcified bone microstructure and intracortical vasculature using synchrotron X-ray phase contrast-enhanced tomography. AB - 3D imaging of the bone vasculature is of key importance in the understanding of skeletal disease. As blood vessels in bone are deeply encased in the calcified matrix, imaging techniques that are applicable to soft tissues are generally difficult or impossible to apply to the skeleton. While canals in cortical bone can readily be identified and characterised in X-ray computed tomographic data in 3D, the soft tissue comprising blood vessels that are putatively contained within the canal structures does not provide sufficient image contrast necessary for image segmentation. Here, we report an approach that allows for rapid, simultaneous visualisation of calcified bone tissue and the vasculature within the calcified bone matrix. Using synchrotron X-ray phase contrast-enhanced tomography we show exemplar data with intracortical capillaries uncovered at sub micrometre level without the need for any staining or contrast agent. Using the tibiofibular junction of 15 week-old C57BL/6 mice post mortem, we show the bone cortical porosity simultaneously along with the soft tissue comprising the vasculature. Validation with histology confirms that we can resolve individual capillaries. This imaging approach could be easily applied to other skeletal sites and transgenic models, and could improve our understanding of the role the vasculature plays in bone disease. PMID- 29038598 TI - Male-specific deficits in natural reward learning in a mouse model of neurodevelopmental disorders. AB - Neurodevelopmental disorders, including autism spectrum disorders, are highly male biased, but the underpinnings of this are unknown. Striatal dysfunction has been strongly implicated in the pathophysiology of neurodevelopmental disorders, raising the question of whether there are sex differences in how the striatum is impacted by genetic risk factors linked to neurodevelopmental disorders. Here we report male-specific deficits in striatal function important to reward learning in a mouse model of 16p11.2 hemideletion, a genetic mutation that is strongly associated with the risk of neurodevelopmental disorders, particularly autism and attention-deficit hyperactivity disorder. We find that male, but not female, 16p11.2 deletion animals show impairments in reward-directed learning and maintaining motivation to work for rewards. Male, but not female, deletion animals overexpress mRNA for dopamine receptor 2 and adenosine receptor 2a in the striatum, markers of medium spiny neurons signaling via the indirect pathway, associated with behavioral inhibition. Both sexes show a 50% reduction of mRNA levels of the genes located within the 16p11.2 region in the striatum, including the kinase extracellular-signal related kinase 1 (ERK1). However, hemideletion males show increased activation in the striatum for ERK1, both at baseline and in response to sucrose, a signaling change associated with decreased striatal plasticity. This increase in ERK1 phosphorylation is coupled with a decrease in the abundance of the ERK phosphatase striatum-enriched protein-tyrosine phosphatase in hemideletion males. In contrast, females do not show activation of ERK1 in response to sucrose, but notably hemideletion females show elevated protein levels for ERK1 as well as the related kinase ERK2 over what would be predicted by mRNA levels. These data indicate profound sex differences in the impact of a genetic lesion linked with neurodevelopmental disorders, including mechanisms of male-specific vulnerability and female-specific resilience impacting intracellular signaling in the brain. PMID- 29038600 TI - Novel evidence for paternal dietary influences on cognitive and neural functions in offspring mice. PMID- 29038601 TI - A structural model of flagellar filament switching across multiple bacterial species. AB - The bacterial flagellar filament has long been studied to understand how a polymer composed of a single protein can switch between different supercoiled states with high cooperativity. Here we present near-atomic resolution cryo-EM structures for flagellar filaments from both Gram-positive Bacillus subtilis and Gram-negative Pseudomonas aeruginosa. Seven mutant flagellar filaments in B. subtilis and two in P. aeruginosa capture two different states of the filament. These reliable atomic models of both states reveal conserved molecular interactions in the interior of the filament among B. subtilis, P. aeruginosa and Salmonella enterica. Using the detailed information about the molecular interactions in two filament states, we successfully predict point mutations that shift the equilibrium between those two states. Further, we observe the dimerization of P. aeruginosa outer domains without any perturbation of the conserved interior of the filament. Our results give new insights into how the flagellin sequence has been "tuned" over evolution.Bacterial flagellar filaments are composed almost entirely of a single protein-flagellin-which can switch between different supercoiled states in a highly cooperative manner. Here the authors present near-atomic resolution cryo-EM structures of nine flagellar filaments, and begin to shed light on the molecular basis of filament switching. PMID- 29038603 TI - Experimental verification of the rotational type of chiral spin spiral structures by spin-polarized scanning tunneling microscopy. AB - We report on experimental verification of the rotational type of chiral spin spirals in Mn thin films on a W(110) substrate using spin-polarized scanning tunneling microscopy (SP-STM) with a double-axis superconducting vector magnet. From SP-STM images using Fe-coated W tips magnetized to the out-of-plane and [001] directions, we found that both Mn mono- and double-layers exhibit cycloidal rotation whose spins rotate in the planes normal to the propagating directions. Our results agree with the theoretical prediction based on the symmetry of the system, supporting that the magnetic structures are driven by the interfacial Dzyaloshinskii-Moriya interaction. PMID- 29038602 TI - Blood pressure and cholesterol level checks as dynamic interrelated screening examinations. AB - This study analysed the determinants of screening uptake for blood pressure and cholesterol level checks. Furthermore, it investigated the presence of possible spillover effects from one type of cardiovascular screening to another type of cardiovascular screening. A dynamic random effects bivariate panel probit model with initial conditions (Wooldridge-type estimator) was adopted for the estimation. The outcome variables were the participation in blood pressure and cholesterol level checks by individuals in a given year. The balanced panel sample of 21,138 observations was constructed from 1,626 individuals from the British Household Panel Survey (BHPS) between 1996 and 2008. The analysis showed the significance of past screening behaviour for both cardiovascular screening examinations. For both cardiovascular screening examinations state dependence exist. The study also shows a significant spillover effect of the cholesterol level check on the blood pressure check and vice versa. Also a poorer health status led to a higher uptake for both types of screening examinations. Changes in recommendations have to consider the fact that taking part in one type of cardiovascular screening examination can influence the decision to take part in the other type of cardiovascular screening examination. PMID- 29038604 TI - Overexpression of OSM and IL-6 impacts the polarization of pro-fibrotic macrophages and the development of bleomycin-induced lung fibrosis. AB - Although recent evidence indicates that gp130 cytokines, Oncostatin M (OSM) and IL-6 are involved in alternative programming of macrophages, their role in lung fibrogenesis is poorly understood. Here, we investigated the effect of transient adenoviral overexpression of OSM or IL-6 in mice during bleomycin-induced lung fibrosis. Lung fibrosis and M2-like macrophage accumulation were assessed by immunohistochemistry, western blotting, gene expression and flow cytometry. Ex vivo isolated alveolar and bone marrow-derived macrophages were examined for M2 like programming and signalling. Airway physiology measurements at day 21 demonstrated that overexpression of OSM or IL-6 exacerbated bleomycin-induced lung elastance, consistent with histopathological assessment of extracellular matrix and myofibroblast accumulation. Flow cytometry analysis at day 7 showed increased numbers of M2-like macrophages in lungs of mice exposed to bleomycin and OSM or IL-6. These macrophages expressed the IL-6Ralpha, but were deficient for OSMRbeta, suggesting that IL-6, but not OSM, may directly induce alternative macrophage activation. In conclusion, the gp130 cytokines IL-6 and OSM contribute to the accumulation of profibrotic macrophages and enhancement of bleomycin induced lung fibrosis. This study suggests that therapeutic strategies targeting these cytokines or their receptors may be beneficial to prevent the accumulation of M2-like macrophages and the progression of fibrotic lung disease. PMID- 29038605 TI - Enantiomeric excess by magnetic circular dichroism in Archaean atmosphere. AB - Evolution of homochirality requires an initial enantiomeric excess (EE) between right and left-handed biomolecules. We show that magnetic circular dichroism (MCD) of sun's ultraviolet C light by oxygen in Archaean earth's anoxic atmosphere followed by chirally selective damage of biomolecules due to circular dichroism (CD) can generate EE of correct handedness. Our calculation of EE uses published data for CD of biomolecules and accepted magnitude for Archaean earth's magnetic field. Independent of atmospheric oxygen concentration calculated EE has the same sign for all pyrimidine nucleosides which is opposite to that for amino acids. Purine nucleosides have smaller EE values with opposite sign to pyrimidines but are less susceptible to UV damage. Homochirality is explained by origin of prebiotic life in one hemisphere of earth and its evolution to EE ~ +/- 1 before reversal of terrestrial magnetic field. Chirality of biomolecules is decided by the direction of magnetic field where prebiotic life originated on Archaean earth. PMID- 29038606 TI - Joint Estimation of Multiple Dependent Gaussian Graphical Models with Applications to Mouse Genomics. AB - Gaussian graphical models are widely used to represent conditional dependence among random variables. In this paper, we propose a novel estimator for data arising from a group of Gaussian graphical models that are themselves dependent. A motivating example is that of modeling gene expression collected on multiple tissues from the same individual: here the multivariate outcome is affected by dependencies acting not only at the level of the specific tissues, but also at the level of the whole body; existing methods that assume independence among graphs are not applicable in this case. To estimate multiple dependent graphs, we decompose the problem into two graphical layers: the systemic layer, which affects all outcomes and thereby induces cross-graph dependence, and the category specific layer, which represents graph-specific variation. We propose a graphical EM technique that estimates both layers jointly, establish estimation consistency and selection sparsistency of the proposed estimator, and confirm by simulation that the EM method is superior to a simple one-step method. We apply our technique to mouse genomics data and obtain biologically plausible results. PMID- 29038599 TI - Widespread white matter microstructural differences in schizophrenia across 4322 individuals: results from the ENIGMA Schizophrenia DTI Working Group. AB - The regional distribution of white matter (WM) abnormalities in schizophrenia remains poorly understood, and reported disease effects on the brain vary widely between studies. In an effort to identify commonalities across studies, we perform what we believe is the first ever large-scale coordinated study of WM microstructural differences in schizophrenia. Our analysis consisted of 2359 healthy controls and 1963 schizophrenia patients from 29 independent international studies; we harmonized the processing and statistical analyses of diffusion tensor imaging (DTI) data across sites and meta-analyzed effects across studies. Significant reductions in fractional anisotropy (FA) in schizophrenia patients were widespread, and detected in 20 of 25 regions of interest within a WM skeleton representing all major WM fasciculi. Effect sizes varied by region, peaking at (d=0.42) for the entire WM skeleton, driven more by peripheral areas as opposed to the core WM where regions of interest were defined. The anterior corona radiata (d=0.40) and corpus callosum (d=0.39), specifically its body (d=0.39) and genu (d=0.37), showed greatest effects. Significant decreases, to lesser degrees, were observed in almost all regions analyzed. Larger effect sizes were observed for FA than diffusivity measures; significantly higher mean and radial diffusivity was observed for schizophrenia patients compared with controls. No significant effects of age at onset of schizophrenia or medication dosage were detected. As the largest coordinated analysis of WM differences in a psychiatric disorder to date, the present study provides a robust profile of widespread WM abnormalities in schizophrenia patients worldwide. Interactive three-dimensional visualization of the results is available at www.enigma viewer.org. PMID- 29038607 TI - Advanced, Analytic, Automated (AAA) Measurement of Engagement During Learning. AB - It is generally acknowledged that engagement plays a critical role in learning. Unfortunately, the study of engagement has been stymied by a lack of valid and efficient measures. We introduce the advanced, analytic, and automated (AAA) approach to measure engagement at fine-grained temporal resolutions. The AAA measurement approach is grounded in embodied theories of cognition and affect, which advocate a close coupling between thought and action. It uses machine learned computational models to automatically infer mental states associated with engagement (e.g., interest, flow) from machine-readable behavioral and physiological signals (e.g., facial expressions, eye tracking, click-stream data) and from aspects of the environmental context. We present15 case studies that illustrate the potential of the AAA approach for measuring engagement in digital learning environments. We discuss strengths and weaknesses of the AAA approach, concluding that it has significant promise to catalyze engagement research. PMID- 29038608 TI - Cali, Colombia, Key learning City C/Can 2025: City Cancer Challenge. PMID- 29038609 TI - Lies, Damned Lies, and Survey Self-Reports? Identity as a Cause of Measurement Bias. AB - Explanations of error in survey self-reports have focused on social desirability: that respondents answer questions about normative behavior to appear prosocial to interviewers. However, this paradigm fails to explain why bias occurs even in self-administered modes like mail and web surveys. We offer an alternative explanation rooted in identity theory that focuses on measurement directiveness as a cause of bias. After completing questions about physical exercise on a web survey, respondents completed a text message-based reporting procedure, sending updates on their major activities for five days. Random assignment was then made to one of two conditions: instructions mentioned the focus of the study, physical exercise, or not. Survey responses, text updates, and records from recreation facilities were compared. Direct measures generated bias-overreporting in survey measures and reactivity in the directive text condition-but the nondirective text condition generated unbiased measures. Findings are discussed in terms of identity. PMID- 29038610 TI - Unique and interactive effects of impulsivity facets on reckless driving and driving under the influence in a high-risk young adult sample. AB - Risky driving behaviors are disproportionately high among young adults and impulsivity is a robust risk factor. Recent conceptualizations have proposed multidimensional facets of impulsivity comprised of negative urgency, premeditation, perseverance, sensation seeking, and positive urgency (UPPS-P model). Prior studies have found these facets are associated with risky driving behaviors in college student samples, but no prior studies have examined these facets in clinical samples. This study examined the unique and interactive effects of UPPS-P impulsivity facets on past-year risky driving behaviors in a sample of high-risk young adults (ages 18-30 years) with a history of substance use and antisocial behavior and their siblings (n=1,100). Multilevel Poisson regressions indicated that sensation seeking and negative urgency were uniquely and positively associated with both frequency of past-year reckless driving and driving under the influence. Moreover, lack of premeditation was uniquely and positively associated with reckless driving, whereas lack of perseverance was uniquely and positively associated with driving under the influence. Furthermore, lack of premeditation moderated and strengthened the positive association between sensation seeking and driving under the influence. These study findings suggest that assessing multiple facets of trait impulsivity could facilitate targeted prevention efforts among young adults with a history of externalizing psychopathology. PMID- 29038611 TI - Paying Research Participants: The Outsized Influence of "Undue Influence". PMID- 29038612 TI - DNA Methylation as a Noninvasive Epigenetic Biomarker for the Detection of Cancer. AB - In light of the high incidence and mortality rates of cancer, early and accurate diagnosis is an important priority for assigning optimal treatment for each individual with suspected illness. Biomarkers are crucial in the screening of patients with a high risk of developing cancer, diagnosing patients with suspicious tumours at the earliest possible stage, establishing an accurate prognosis, and predicting and monitoring the response to specific therapies. Epigenetic alterations are innovative biomarkers for cancer, due to their stability, frequency, and noninvasive accessibility in bodily fluids. Epigenetic modifications are also reversible and potentially useful as therapeutic targets. Despite this, there is still a lack of accurate biomarkers for the conclusive diagnosis of most cancer types; thus, there is a strong need for continued investigation to expand this area of research. In this review, we summarise current knowledge on methylated DNA and its implications in cancer to explore its potential as an epigenetic biomarker to be translated for clinical application. We propose that the identification of biomarkers with higher accuracy and more effective detection methods will enable improved clinical management of patients and the intervention at early-stage disease. PMID- 29038613 TI - Nasal Cytology as a Marker of Atopy in Children. AB - The aim of this study was to evaluate the cytological picture of nasal mucosa in children with atopic diseases and to determine the diagnostic value of the test for the diagnosis of atopic diseases. The study included 140 children from 4 months to 17 years old. Among children with a history of atopy, there were 30 children with atopic dermatitis, 30 children with asthma, and 46 children with allergic rhinitis. The control group consisted of 34 healthy children. The nasal scraping technique has been used to collect samples from the nasal cavity. The samples were evaluated under light microscope. Epithelial cells as well as infiltrating cells were assessed. The only statistically significant group of cells differentiating children with atopic disease and without atopy were eosinophils, which in children with atopy were significantly more common. Assuming a significant eosinophilia value of at least 5% of all cells in cytogram, the sensitivity of nasal cytology in allergic rhinitis was 52.2%, in asthma 33.3%, and in atopic dermatitis 13.3%. The specificity of the test in atopic diseases was 94.1%. It can be concluded that nasal cytology with eosinophilia assessment can be a useful tool for an early diagnosis of atopic disease in children. PMID- 29038614 TI - DNA Methylation Events as Markers for Diagnosis and Management of Acute Myeloid Leukemia and Myelodysplastic Syndrome. AB - During the onset and progression of hematological malignancies, many changes occur in cellular epigenome, such as hypo- or hypermethylation of CpG islands in promoter regions. DNA methylation is an epigenetic modification that regulates gene expression and is a key event for tumorigenesis. The continuous search for biomarkers that signal early disease, indicate prognosis, and act as therapeutic targets has led to studies investigating the role of DNA in cancer onset and progression. This review focuses on DNA methylation changes as potential biomarkers for diagnosis, prognosis, response to treatment, and early toxicity in acute myeloid leukemia and myelodysplastic syndrome. Here, we report that distinct changes in DNA methylation may alter gene function and drive malignant cellular transformation during several stages of leukemogenesis. Most of these modifications occur at an early stage of disease and may predict myeloid/lymphoid transformation or response to therapy, which justifies its use as a biomarker for disease onset and progression. Methylation patterns, or its dynamic change during treatment, may also be used as markers for patient stratification, disease prognosis, and response to treatment. Further investigations of methylation modifications as therapeutic biomarkers, which may correlate with therapeutic response and/or predict treatment toxicity, are still warranted. PMID- 29038616 TI - SUMO E3 Ligase PIASy Mediates High Glucose-Induced Activation of NF-kappaB Inflammatory Signaling in Rat Mesangial Cells. AB - BACKGROUND: Sumoylation is extensively involved in the regulation of NF-kappaB signaling. PIASy, as a SUMO E3 ligase, has been proved to mediate sumoylation of IkappaB kinase gamma (IKKgamma) and contribute to the activation of NF-kappaB under genotoxic agent stimulation. However, the association of PIASy and NF kappaB signaling in the pathogenesis of diabetic nephropathy (DN) has not been defined. METHODS: Rat glomerular mesangial cells (GMCs) were stimulated by high glucose; siRNA was constructed to silence the expression of PIASy; the expression of PIASy, SUMO isoforms (SUMO1, SUMO2/3), and NF-kappaB signaling components was analyzed by Western blot; the interaction between IKKgamma and SUMO proteins was detected by coimmunoprecipitation; and the release of inflammatory cytokines MCP 1 and IL-6 was assayed by ELISA. RESULTS: High glucose significantly upregulated the expression of PIASy, SUMO1, and SUMO2/3 in a dose- and time-dependent manner (P < 0.05), induced the phosphorylation and sumoylation of IKKgamma (P < 0.05), and then triggered NF-kappaB signaling whereas MCP-1 and IL-6 were released from GMCs (P < 0.05). Moreover, these high glucose-induced effects were observably reversed by siRNA-mediated knockdown of PIASy (P < 0.05). CONCLUSION: The SUMO E3 ligase PIASy mediates high glucose-induced activation of NF-kappaB inflammatory signaling, suggesting that PIASy may be a potential therapeutic target of DN. PMID- 29038615 TI - Red Blood Cell Distribution Width: A Novel Predictive Indicator for Cardiovascular and Cerebrovascular Diseases. AB - The red blood cell distribution width (RDW) obtained from a standard complete blood count (CBC) is a convenient and inexpensive biochemical parameter representing the variability in size of circulating erythrocytes. Over the past few decades, RDW with mean corpuscular volume (MCV) has been used to identify quite a few hematological system diseases including iron-deficiency anemia and bone marrow dysfunction. In recent years, many clinical studies have proved that the alterations of RDW levels may be associated with the incidence and prognosis in many cardiovascular and cerebrovascular diseases (CVDs). Therefore, early detection and intervention in time of these vascular diseases is critical for delaying their progression. RDW as a new predictive marker and an independent risk factor plays a significant role in assessing the severity and progression of CVDs. However, the mechanisms of the association between RDW and the prognosis of CVDs remain unclear. In this review, we will provide an overview of the representative literatures concerning hypothetical and potential epidemiological associations between RDW and CVDs and discuss the underlying mechanisms. PMID- 29038617 TI - Patients with Systemic Lupus Erythematosus Show Increased Levels and Defective Function of CD69+ T Regulatory Cells. AB - T regulatory (Treg) cells have a key role in the pathogenesis of chronic inflammatory and autoimmune diseases. A CD4+CD69+ T cell subset has been described that behaves as Treg lymphocytes, exerting an important immune suppressive effect. In this study, we analyzed the levels and function of CD4+CD69+ Treg cells in patients with systemic lupus erythematosus (SLE). Blood samples were obtained from 22 patients with SLE and 25 healthy subjects. Levels of CD4+CD69+ Treg cells were analyzed by multiparametric flow cytometry, and their function was measured by an assay of suppression of lymphocyte activation and through the inhibition of cytokine synthesis. We found an increased percent of CD4+CD25varCD69+TGF-beta+IL-10+Foxp3- lymphocytes in patients with SLE compared to controls. In addition, a significant diminution in the suppressive effect of these cells on the activation of autologous T lymphocytes was observed in most patients with SLE. Accordingly, CD69+ Treg cells from SLE patients showed a defective capability to inhibit the release of IL-2, IL-6, IL-10, and IL-17A by autologous lymphocytes. Our findings suggest that while CD4+CD69+ Treg lymphocyte levels are increased in SLE patients, these cells are apparently unable to contribute to the downmodulation of the autoimmune response and the tissue damage seen in this condition. PMID- 29038618 TI - Mediators of Inflammation and Angiogenesis in Chronic Spontaneous Urticaria: Are They Potential Biomarkers of the Disease? AB - In chronic spontaneous urticaria (CSU), different pathophysiological mechanisms, potentially responsible for the development of the disease, have been recently described. It is likely that the activation of skin mast cells with consequent release of histamine and other proinflammatory mediators is responsible for vasodilation in the lesional skin of CSU. However, the underlying causes of mast cell activation in the disease are largely unknown and remain to be identified. Thus, in this review, we discuss new insights in the pathogenesis of CSU, focusing on inflammation and angiogenesis. The understanding of these mechanisms will enable the identification of biomarkers useful for the diagnosis, follow-up, and management of CSU and will allow the development of novel, more specific, and patient-tailored therapies. PMID- 29038619 TI - Alteration of Inflammatory Mediators in the Upper and Lower Airways under Chronic Intermittent Hypoxia: Preliminary Animal Study. AB - PURPOSE: We hypothesized that CIH may affect the upper airway immune system and aimed to verify whether CIH can induce airway inflammation in a murine obstructive sleep apnea (OSA) model. METHODS: C57BL6 male mice were exposed to intermittent hypoxia (CIH group; 5 ~ 21% FiO2, 120 sec cycles, 12 h/d, n = 6) or room air (Sham group, n = 6) for up to 4 weeks in identical chambers. Nasal and lung tissues and lavage fluid were collected and analyzed by multiplex assay. Lung lavage fluid was also utilized for FACS analysis to determine eosinophil count. RESULTS: We determined the protein level of 24 different cytokines, chemokines, and inflammatory mediators. Among various cytokines, levels of IL 1alpha, IL-1beta, IL-4, IL-6, and IL-13 were significantly elevated in nose or lung tissue from the CIH group. In addition, MCP-1 and periostin were elevated in nose and lung tissue and lavage fluid from the CIH group. CONCLUSIONS: CIH for 4 weeks altered the levels of inflammatory mediators in both the nose and lungs of mouse model. We suggest that the airway immune system may be deteriorated by CIH and allergic inflammation in the upper or lower airway could be worsened by sleep apnea. PMID- 29038620 TI - Dengue Virus Induces NK Cell Activation through TRAIL Expression during Infection. AB - Dengue is an acute febrile illness with a wide spectrum of signs and symptoms ranging from mild to severe forms characterized by plasma leakage that can be fatal. NK cells are one of the main effectors in early infection and may play an important role in dengue pathogenesis. We investigated NK cell involvement during dengue infection. A higher frequency of NK cell subsets and TRAIL+NK cells was found in mild DF cases when compared to that in severe cases or healthy donors. NK activation markers such as CD107a and TLR3 were upregulated in patients' cells compared to those in healthy donors. In addition, IL12 related to NK cell activation were upregulated in mild DF cases. In vitro PBMC culture models show that DENV-stimulated and IFNalpha-stimulated NK cells were able to express TRAIL, suggesting an indirect activation of cells, regarding TRAIL expression. Type I IFN receptor blockage on DENV-stimulated PBMCs showed TRAIL expression on NK cells is partially IFNalpha dependent. In addition, during PBMC stimulation, TRAIL expression on NK cells was inversely correlated with DENV-positive monocytes. Therefore, we observed DENV-induced activation of NK cell populations. A higher activation of NK cells would promote limited viral spread, resulting in decreased inflammatory response, contributing to protection against dengue severity. PMID- 29038621 TI - TWEAK/Fn14 Activation Participates in Skin Inflammation. AB - Tumor necrosis factor- (TNF-) like weak inducer of apoptosis (TWEAK) participates in multiple biological activities via binding to its sole receptor-fibroblast growth factor-inducible 14 (Fn14). The TWEAK/Fn14 signaling pathway is activated in skin inflammation and modulates the inflammatory responses of keratinocytes by activating nuclear factor-kappaB signals and enhancing the production of several cytokines, including interleukins, monocyte chemotactic protein-1, RANTES (regulated on activation, normal T cell expressed and secreted), and interferon gamma-induced protein 10. Mild or transient TWEAK/Fn14 activation contributes to tissular repair and regeneration while excessive or persistent TWEAK/Fn14 signals may lead to severe inflammatory infiltration and tissue damage. TWEAK also regulates cell fate of keratinocytes, involving the function of Fn14-TNF receptor associated factor-TNF receptor axis. By recruiting inflammatory cells, promoting cytokine production, and regulating cell fate, TWEAK/Fn14 activation plays a pivotal role in the pathogenesis of various skin disorders, such as psoriasis, atopic dermatitis, cutaneous vasculitis, human papillomavirus infection and related skin tumors, and cutaneous autoimmune diseases. Therefore, the TWEAK/Fn14 pathway may be a potential target for the development of novel therapeutics for skin inflammatory diseases. PMID- 29038624 TI - Comparing the Efficiency of Two Different Extraction Techniques in Removal of Maxillary Third Molars: A Randomized Controlled Trial. AB - INTRODUCTION: Extractions are routine procedures in dental surgery. Traditional extraction techniques use a combination of severing the periodontal attachment, luxation with an elevator, and removal with forceps. A new technique of extraction of maxillary third molar is introduced in this study-Joedds technique, which is compared with the conventional technique. METHODS AND MATERIAL: One hundred people were included in the study, the people were divided into two groups by means of simple random sampling. In one group conventional technique of maxillary third molar extraction was used and on second Joedds technique was used. Statistical analysis was carried out with student's t test. RESULTS: Analysis of 100 patients based on parameters showed that the novel joedds technique had minimal trauma to surrounding tissues, less tuberosity and root fractures and the time taken for extraction was <2 min while compared to other group of patients. CONCLUSION: This novel technique has proved to be better than conventional third molar extraction technique, with minimal complications. If Proper selection of cases and right technique are used. PMID- 29038622 TI - Inflexibility as a Vulnerability to Depression: A Systematic Qualitative Review. AB - The study of vulnerabilities to depression typically identifies factors that are thought to be universally maladaptive or adaptive. In contrast, researchers recently have theorized that the ability to flexibly engage in different thoughts and behaviors that fit situational demands may be most indicative of psychological health. We review empirical evidence from 147 studies reporting associations between five components of flexibility (set-shifting, affective set shifting, cardiac vagal control, explanatory flexibility, and coping flexibility) and depression and classify studies according to strength of study design. Evidence from correlational and case-controlled studies suggests cross-sectional relationships, but few prospective studies have been conducted. We discuss limitations of existing studies, identify new directions for programmatic research, and discuss implications that flexibility has for the prevention and treatment of depression. PMID- 29038623 TI - Wound Healing Concepts in Clinical Practice of OMFS. AB - BACKGROUND: Wound healing is a complex and dynamic process and a thorough knowledge of the basics of physiology of wound healing is a must to implement principles of chronic wound care. Understanding wound healing at multiple levels biochemical, physiologic, cellular and molecular provides the surgeon with a framework for basing clinical decisions aimed at optimizing the healing response. OBJECTIVE: This review article describes the classification of wounds and aims to highlight the fundamentals of wound repair, enumerating the dressings used commonly and also, the newer concepts of wound healing. MATERIALS AND METHODS: Search engines and medical databases were tapped to gather information on the subject. Search words employed were "Wounds", "wounds in OSMF", "Wound healing", "Repair", "Dressings in OMFS". RESULTS: The search resulted in total of 153 articles which we reviewed to add to the literature the concepts of wound healing and to throw some light on recent advances in wound care. CONCLUSIONS: Wound healing remains a challenging clinical problem and correct, efficient wound management is essential to positively influence the wound healing course and reduce potential complications. PMID- 29038625 TI - Mucoepidermoid Carcinoma of the Salivary Glands: Survival and Prognostic Factors. AB - OBJECTIVE: The aim of this study was to establish global survival rates and potential prognostic factors for mucoepidermoid carcinoma (MC) of the salivary glands in patients diagnosed at the Dr. Eduardo Caceres Graziani National Institute for Neoplastic Diseases (INEN), Lima, Peru, between 2002 and 2012. MATERIALS AND METHODS: This was an observational, analytical and longitudinal (information reconstructed in time) retrospective cohort study. Data were obtained from clinical records and used to determine the overall survival (OS) rate at 2 and 5 years, and the individual percentage survival for each prognostic factor using the actuarial technique. We also performed univariate analysis for each possible prognostic factor using log-rank analysis, and multivariate analysis using Cox's regression model. The study was approved by the institutional review board at Dr. Eduardo Caceres Graziani INEN and conducted in accordance with the 1964 Declaration of Helsinki. For this type of study formal consent was not required. RESULTS: The OS rate of the 51 patients enrolled in the study was 81 % at 2 years and 78 % at 5 years. In the multivariate analysis, the equation that best explained the survival result contained the variable, clinical stage (p = 0.063). CONCLUSIONS: The results revealed the importance of clinical stage regarding the survival of patients with a primary diagnosis of MC of the salivary glands. PMID- 29038626 TI - Maxillofacial Injuries in Women: A Retrospective Study of 10 Years. AB - INTRODUCTION: Diversities exists in incidence, etiology and epidemiology of facial fractures among male and female individuals due to various reasons. Many of the epidemiological studies published during the millennium have shown male predilection. This study was carried to evaluate the etiology, patterns and distribution of facial fractures among different age groups in women. MATERIALS AND METHODS: This Retrospective epidemiological study dealt with a total of 302 women with 422 fractures in maxillofacial region during a period of June 1st 2005 to May 31st 2015 at Mamata Dental College and Hospital, Khammam, Telangana, India. RESULTS: Mean age of incidence was 31.58 years, mandibular fractures were highest (44.07 %) followed by zygomaticomaxillary complex injuries (ZMC) (20.37 %). Road traffic accidents (RTA) injuries (53.7 %) were highest, followed by assault (23.9 %) and other causes. Highest number (33.8 %) of fractures were sustained in the 3rd decade and least (0.7 %) in the 8th decade of life. Among soft tissue injuries most commonly seen were lacerations (51 %). CONCLUSION: Results of this study suggest that there is an increase in the number of maxillofacial injuries in women, representing changes in the society, exposing women to similar conditions like men and increased number of working women. This study helps to identify trauma burden, assess the awareness of current preventive measures, women protection laws, for instituting new guidelines for prevention and planning health care services for women. PMID- 29038627 TI - Characterization and Antibiotic Sensitivity Profile of Bacteria in Orofacial Abscesses of Odontogenic Origin. AB - BACKGROUND: Odontogenic infections range from peripheral abscess to superficial and deep infections leading to severe infections in head and neck region. This study was aimed to assess bacterial isolates responsible for orofacial infection of odontogenic origin and their drug susceptibility patterns so as to provide better perceptive for the management of odontogenic infections. METHODS: The study was made in a selected cohort of patients, irrespective of age and gender having moderate and severe orofacial infections of odontogenic origin admitted to Yenepoya University Hospital. Pus samples were collected and identification of bacteria was performed by 16S rRNA gene sequencing. Antimicrobial susceptibility testing was performed by Kirby-Bauer disc diffusion method. RESULT: A total of 37 study subjects were included, with bacterial isolation rate of 31 (83.7 %). The mean age presented of all patients was 40.62. Of all, 24 (64.9 %) were males. Staphylococcus aureus, Enterobacter claocae subsp. dissolvens, Klebsiella quasipneumoniae subsp. similipneumoniae, Staphylococcus aureus subsp. anaerobius and Klebsiella pneumoniae subsp. ozaenae were the most prevalent isolates. Result showed that 58.6 % of the isolates were resistant to gentamicin, 52.5 % for ampicillin, 51.3 % for piperacillin; least resistant being 18.9 % for azithromycin. CONCLUSION: High prevalence of bacterial isolates was found, Staphylococcus aureus being the dominant. Most of the bacteria were resistant to different classes of antibiotics. Appropriate antibiotics should be given based on the bacterial isolates, culture sensitivity and clinical course of the disease. PMID- 29038628 TI - Pre-operative Assessment of Anatomical Position of Inferior Alveolar Nerve and Its Significance in Bilateral Sagittal Split Osteotomy. AB - The aim of this study is to investigate the position and course of the mandibular canal through the ramus, angle and body of mandible using computed tomographic (CT) imaging pre-operatively and to relate these predetermined values intra operatively to perform sagittal split ramus osteotomies. Pre-operative CT scans were taken and four points were marked at mandibular foramen, mandibular angle, mandibular body and midpoint and different dimensions of IAN were measured to localize the inferior alveolar nerve. With the obtained values, precise osteotomy cuts were made intra-operatively and intra-operative measurements for position of IAN were noted. Based on the preoperative CT measurements, the chance to encounter IAN bundle, during surgery was evaluated. The present study proved that pre-operative CT imaging prior to BSSO surgical procedure is an effective way to investigate the position and course of the IAN canal through the framework of the mandible and by interpolating these dimensions intra operatively, reduces the risk of direct injury to the IAN bundle. PMID- 29038629 TI - Patient's Self-Assessment of Social-Approval After Mandibulectomy with Disarticulation: the Necessity for Jaw Reconstruction Following Loss of Facial Symmetry in a Resource-Poor African Setting. AB - OBJECTIVE: Mandibulectomy with disarticulation is usually carried out without reconstruction in Low-Income-Countries. Lower standards of living are usually acceptable and adapted to, in poor societies. This study compares patient's self assessment of social approval among reconstructed and non-reconstructed cases of mandibulectomy with disarticulation in a resource-poor African setting. MATERIAL AND METHOD: This questionnaire-based study documented patient's self-assessment of social approval of themselves following mandibulectomy with disarticulation. 12 derived queries were administered on each patient, to test what they perceived of social acceptability of their facial features following mandibulectomy. RESULTS: All 10 patients who underwent mandibular reconstruction reported that they felt confident engaging in all forms of social activity, while all 10 who had resection without reconstruction did not. CONCLUSION: The low social approval perceived by patients who have undergone mandibulectomy with disarticulation without reconstruction necessitates that surgeons must strive to reconstruct this anatomical region even under circumstances of severe resource-constraint. The culture in the third-world is not supportive of patients who have not undergone reconstruction following resection, in spite of being victims of all-pervading poverty. LEVEL OF EVIDENCE: Level IV, investigative study. PMID- 29038630 TI - Effect of Alveolar Segmental Sandwich Osteotomy on Alveolar Height: A Preliminary Study. AB - PURPOSE: Bone loss following extraction is maximum in horizontal dimension. Height is also reduced which is pronounced on the buccal aspect. Various surgical procedures are available to correct the bone volume viz. GBR, onlay bone grafting, alveolar distraction and sandwich osteotomy. Sandwich osteotomy has been found to increase the vertical alveolar bone height successfully. OBJECTIVES: The objective of the study was to assess the effect of alveolar segmental sandwich osteotomy on alveolar height and crestal width. MATERIALS AND METHODOLOGY: A prospective study was undertaken from December 2012 to August 2014. Seven patients with 12 implant sites with a mean age of 36 years were recruited. All seven patients with 12 implant sites underwent alveolar segmental sandwich osteotomy and interpositional bone grafting. Alveolar bone height was assessed radiographically preoperatively, immediate post-op, and at 3 months post op. Alveolar bone width was assessed radiographically preoperatively and at 3 months post-op. Statistical significance was inferred at p < 0.05. RESULTS: The mean vertical augmentation at immediate post-op was 6.58 mm (p = 0.001). The vertical augmentation that was achieved 3 months post-op was a mean of 3.75 mm which was statistically significant (p = 0.004). The change in alveolar height from immediate post-op to 3 month post-op was a mean 1.69 mm. The mean change in alveolar crestal width at 3 months was a mean of -0.29 mm (p = 0.57). CONCLUSION: Sandwich osteotomy can be used as an alternative technique to increase alveolar bone height prior to implant placement. Moderate alveolar deficiency can be predictably corrected by this technique. PMID- 29038631 TI - Efficacy of Temporomandibular Joint Arthrocentesis with Sodium Hyaluronate in the Management of Temporomandibular Joint Disorders: A Prospective Randomized Control Trial. AB - PURPOSE: This study was designed to investigate the efficacy of the temporomandibular joint arthrocentesis with and without injection of sodium hyaluronate (SH) in the treatment of temporomandibular joint disorders. PATIENTS AND METHODS: A total of sixty two TMJs in 34 males and 28 females aged 20-65 years comprised the study material. The patients' complaints were limited mouth opening, TMJ pain, and joint noises during function. Patients were randomly divided into 2 groups in which arthrocentesis plus intra-articular injection of sodium hyaluronate was performed in 1 group and only arthrocentesis was performed in the other group. Both groups contained patients with disc displacement with reduction and without reduction. Clinical evaluation of the patients was done before the procedure, immediately after the procedure, at 1 week and 1, 3 and 6 months postoperatively. Intensity of TMJ pain was assessed using visual analog scales. Maximal mouth opening and lateral jaw movements also were recorded at each follow-up visit. RESULTS: Both techniques increased maximal mouth opening, lateral movements, and function, while reducing TMJ pain and noise. CONCLUSIONS: Although patients benefitted from both techniques, arthrocentesis with injection of SH seemed to be superior to arthrocentesis alone. PMID- 29038632 TI - Evaluation of Post-surgical Bacteremia with Use of Povidone-Iodine and Chlorhexidine During Mandibular Third Molar Surgery. AB - BACKGROUND: Microorganisms may invade the blood stream by oral routes through surgical procedures like extractions, fractured teeth and periodontal pockets. The incidence of bacteremia is 70-80 % following tooth extraction, sub gingival scaling and intra ligament injection. AIMS AND OBJECTIVES: Aim of study was to evaluate and compare the efficacy of two topical antimicrobial agents for the prevention of post-surgical bacteremia during mandibular third molar surgery. And objectives were to suggest need of proper topical antimicrobial agents and select proper antibiotics before oral surgical procedures in high risk cardiac patients. MATERIALS AND METHODS: Thirty patients with Class 1, Position B mesioangular impacted mandibular third molar were randomly included in study and divided into 3 groups, each group containing 10 patients. Group I; sterile water group, Group II: povidone-iodine (5 %) group, Group III: chlorhexidine (Q, 2 %) group, pre and post-surgical blood samples were collected and Microbiological analyses of the blood samples were done. The organisms were identified by standard method on grams staining and identification of bacterial species by biochemical tests. RESULTS: The clinical parameters like oral hygiene index simplified and periodontal index of Russel showed that all patients in three groups had fair oral hygiene with simple gingivitis on mean. In some individuals with slightly higher OHIS and PI scores, bacteremia was noted. All the pre surgical blood samples were negative for the growth of bacteria after 7 days of culture. In total 30 patients, 12 subjects had postoperative bacteremia. Out of those 12 patients 6 cases (60 %) of group I showed positive bacterial growth in the post surgical blood sample, while 4 cases in group III and 2 cases (20 %) in group II showed the same. CONCLUSION: Use of povidone-iodine and chlorhexidine prior to the oral surgical procedures decreases the incidence of bacteremia as compared to sterile water irrigation. Povidone-iodine significantly reduces the incidence bacteremia and number of organisms compared to chlorhexidine and sterile water. PMID- 29038633 TI - Comparison of Micromarsupialization and Modified Micromarsupialization for the Management of Mucocoele of Lower Lip: A Prospective Randomized Clinical Trial. AB - BACKGROUND: This study was undertaken to compare micromarsupialization and modified micromarsupialization for the management of mucoceles. MATERIALS AND METHODS: A prospective randomized clinical study was done on thirty patients having mucocele on lower lip. In Group A (n = 15), micromarsupialization and in Group B (n = 15), modified micromarsupialization technique was used. The outcome variables were duration of surgery, intraoperative pain, postoperative pain, healing and recurrence. t test and p values were used to compare the age, duration of lesion, duration of treatment and time taken for healing. The results were expressed as mean with SD. Statistical significance was established at the p <= 0.05 level. Analysis of pain (intraoperative, on 3rd, 7th day), intraoperative bleeding and recurrence was done using Fischer's exact test (p = 0.875, NS). RESULTS: The average duration of treatment for Group A was 4.10 +/- 0.39 min and for Group B was 5.33 +/- 0.2 min. The difference was found to be statistically highly significant (p value <=0.000). The observed power was 1.000. The difference in the intraoperative and postoperative pain on 3rd and 7th day was not found to be significant as per Fischer's exact test. The mean time taken for healing of the surgical site in Group A was 7.47 +/- 0.64 days and in Group B was 9.87 +/- 1.88 days, and the difference was found to be highly significant. The observed power was 0.995. CONCLUSIONS: Modified micromarsupialization appears to be a safe technique for the management of mucoceles. However, in comparison with micromarsupialization, it has a higher operating and healing time. PMID- 29038634 TI - 3 Dimensional Plate in Management of Sagittal Palatal Fracture: A Novel Technique. AB - The palatal fracture is rare. There are varieties of techniques mentioned in the literature for fixation of palatal fracture. The management with Kirschner wire fixation, maxillary arch stabilization with the arch bars, trans-palatal, intra osseous, inter-molar, figure of eight wiring were technique sensitive and having poor patient compliance. We recommended the use of isolated 3 dimensional plate for fixation of sagittal palatal fracture. PMID- 29038635 TI - Pleomorphic Adenoma of Soft Palate: Unusual Occurrence of the Major Tumor in Minor Salivary Gland-A Case Report and Literature Review. AB - Salivary gland tumours constitute about less than 4 % of all head and neck tumours. Pleomorphic adenoma, also called benign mixed tumour, is the most common tumour of the salivary glands. About 80-90 % of these tumours occur in the major salivary glands mainly parotid gland and 10 % of them occur in the minor salivary glands. The most common site for pleomorphic adenoma of the minor salivary glands is the palate, followed by the lips and the cheeks. Other rare sites include the floor of the mouth, tongue, tonsil, pharynx, retromolar area and the nasal cavity. Here, we are reporting a case of pleomorphic adenoma of the minor salivary glands of the soft palate in a 36-year-old Indian female. The mass was removed by wide local excision with adequate margins under general anesthesia. There was no recurrence seen after a follow-up period of 1 year. PMID- 29038636 TI - Hybrid Implant: A Novel Implant System- Replica of BOI-BAC and BOI-BAC2. PMID- 29038637 TI - Subcuticular Suture Technique: Alternative to Frost Suture to Prevent Ectropion After Transcutaneous Incision of Lower Eyelid. AB - INTRODUCTION: An ectropion is a complication that can arise from reconstruction in the infraorbital region. Often, this complication occurs despite proper positioning of the lower lid at the time of closure. Various transcutaneous approaches to orbit skeleton have investigated in view of complication arising from them. A subtarsal approach with a postoperative Frost suture gives an advantage to reduce the occurrence of ectropion especially after treatment of orbital floor fractures. MATERIAL AND METHODS: This case describes a method of subcuticular suturing technique for subtarsal incision of lower lid which can be used to support the lid during healing period, thus decreasing the rate of ectropion. CONCLUSION: The technique described here is an alterative method for frost suturing with certain advantages. PMID- 29038638 TI - A Self-Retaining Lingual Flap Guarding Device During Surgical Removal of Impacted Mandibular Third Molar. AB - INTRODUCTION: Lingual nerve damage is one of the common complications following mandibular third molar surgery. On considering the impact of lingual nerve damage on the patient's quality of life, it is necessary to exercise caution to minimize its occurrence. MATERIAL AND METHODS: Although many lingual retractors are available, in this article we describe an indigenously designed lingual retractor for use in mandibular third molar surgery. CONCLUSION: The indigenous lingual retractor described in this article provides advantages like clear access and excellent retention unlike conventional retractors. PMID- 29038639 TI - Inductively-coupled Frequency Tuning and Impedance Matching in HTS-based NMR Probes. AB - Nuclear Magnetic Resonance (NMR) probes based on High Temperature Superconducting (HTS) resonators have demonstrated significant gains in detection sensitivity. However, the widespread acceptance of this technology has been limited by some unresolved issues including the mechanical unreliability of the moveable inductive loops used to adjust tuning and matching. In order to improve reliability, we propose to implement frequency tuning and impedance matching of HTS resonators using fixed inductively coupled loops and variable capacitors. By analyzing the loss mechanisms associated with inductive loops, we predict that using a superconducting inductive loop for tuning and matching will not only improve the reliability of HTS probes, but also provide improvements in sensitivity. PMID- 29038640 TI - A Liquid Optical Phase Shifter with an Embedded Electrowetting Actuator. AB - We demonstrate an electrowetting-based liquid optical phase shifter. The phase shifter consists of two immiscible liquid layers with different refractive indices. Sandwiched between the two liquids is a rigid membrane that moves freely along the optical axis and supported by a compliant surround. When applied with a pressure, the thicknesses of both liquid layers change, which induces a difference in optical path, resulting in a phase shift. A miniaturized electrowetting-based actuator is used to produce hydraulic pressure. A multi layered SU8 bonded structure was fabricated. A phase shift of 171 degrees was observed when the device was incorporated in a Mach-Zehnder interferometer and driven with 100 V. PMID- 29038642 TI - Diagnosing and Treating Eosinophilic Esophagitis. PMID- 29038641 TI - A Method for Mapping Glycosylation Sites in Proteins. AB - The analysis of protein glycosylation by mass spectrometry (MS) has been a challenging technical problem. Quantification by HPLC of N-linked glycans can be executed by the use of peptide-N-glycosidase F to release them from the protein, followed by attachment of a fluorescent label and subsequent fluorescence detection. Similar quantification of O-linked glycans is not possible, as a result of the lack of a universal deglycosylation enzyme. Site-specific analyses by MS, such as the use of proteases to digest the glycoprotein, are difficult to use for quantification of glycans, as a result of the presence of miscleavages. Here, we present a new application of a digestion method for native proteins using resin-bound, thermally stabilized proteases. The use of this enzymatic treatment eliminates miscleavages around the site of glycosylation, thereby allowing site-specific relative quantification of glycans on glycoproteins. A native, intact human mAb was digested using a thermally stable, resin-bound trypsin to produce glycopeptides from the Fc region using a single-step protocol. A 1 mg sample was treated with 60 ug trypsin for 3 h at 70 degrees C. After digestion, acetonitrile was added, and the mixture was centrifuged to remove the resin before analysis. Liquid chromatography (LC)/MS with hydrophilic interaction chromatography was used to analyze the glycopeptides produced. All of the glycopeptides found resulted from a single peptide (EEQYNSTYR). The LC/MS analysis of the glycopeptides is compared with that of fluorescently labeled glycans. Quantitative analysis produced a correlation coefficient of 0.87 for the linear fit between the glycopeptide and released glycan methods. PMID- 29038644 TI - Black Box Warning for Possible HBV Reactivation During DAA Therapy for Chronic HCV Infection. AB - In 2016, the US Food and Drug Administration issued a warning about the risk of hepatitis B virus (HBV) reactivation in some patients receiving direct-acting antiviral (DAA) therapy for hepatitis C virus (HCV) infection. HBV reactivation can occur soon after the start of DAA therapy; thus, monitoring liver enzymes during DAA therapy is important in patients at risk. The clinical outcomes of HBV reactivation in this patient population may resemble the outcomes seen in immunosuppressed patients receiving chemotherapy. Each drug combination regimen has demonstrated risk for HBV reactivation and, therefore, contains a black box warning stating that all HCV-infected patients pending treatment should be tested for evidence of current or prior infection with HBV before initiating treatment. Both the American Association for the Study of Liver Diseases and the European Association for the Study of the Liver guidelines have been updated accordingly. PMID- 29038645 TI - Managing Obesity With Endoscopic Sleeve Gastroplasty. PMID- 29038643 TI - Current Diagnostic and Treatment Strategies for Eosinophilic Esophagitis. AB - Eosinophilic esophagitis (EoE) is a chronic inflammatory disorder of the esophagus diagnosed by the presence of esophageal symptoms accompanied by an esophageal eosinophilic infiltrate. EoE has an increasing worldwide prevalence and can be a cause of dysphagia and food impactions. There is an important role for the use of proton pump inhibitors in the diagnostic pathway of EoE. Treatment paradigms for EoE aim to minimize esophageal inflammation and improve symptom control. Dietary therapy targets dietary allergens and encompasses the elemental diet, the allergy testing-directed elimination diet, and the empiric elimination diet. Pharmacologic options include topical corticosteroids as the standard first line treatment. Multiple other pharmacologic interventions are currently under investigation and are not recommended in the most recent guidelines. Endoscopic dilation is usually reserved for patients who relapse on pharmacologic or dietary regimens or who have symptomatic stricturing disease. This article provides a comprehensive discussion of existing diagnostic and management strategies for EoE. PMID- 29038646 TI - Medical Therapies in the Pipeline for Irritable Bowel Syndrome. PMID- 29038647 TI - Extrahepatic Benefits Achieved With Sustained Virologic Response in Patients With Hepatitis C Virus Infection. PMID- 29038649 TI - GASTRO-HEP News. PMID- 29038648 TI - Overview of Therapeutic Drug Monitoring of Biologic Agents in Patients With Inflammatory Bowel Disease. PMID- 29038650 TI - Kinship Support in Jamaican Families in the USA and Jamaica. PMID- 29038651 TI - Classification of Suicide Attempts through a Machine Learning Algorithm Based on Multiple Systemic Psychiatric Scales. AB - Classification and prediction of suicide attempts in high-risk groups is important for preventing suicide. The purpose of this study was to investigate whether the information from multiple clinical scales has classification power for identifying actual suicide attempts. Patients with depression and anxiety disorders (N = 573) were included, and each participant completed 31 self-report psychiatric scales and questionnaires about their history of suicide attempts. We then trained an artificial neural network classifier with 41 variables (31 psychiatric scales and 10 sociodemographic elements) and ranked the contribution of each variable for the classification of suicide attempts. To evaluate the clinical applicability of our model, we measured classification performance with top-ranked predictors. Our model had an overall accuracy of 93.7% in 1-month, 90.8% in 1-year, and 87.4% in lifetime suicide attempts detection. The area under the receiver operating characteristic curve (AUROC) was the highest for 1-month suicide attempts detection (0.93), followed by lifetime (0.89), and 1-year detection (0.87). Among all variables, the Emotion Regulation Questionnaire had the highest contribution, and the positive and negative characteristics of the scales similarly contributed to classification performance. Performance on suicide attempts classification was largely maintained when we only used the top five ranked variables for training (AUROC; 1-month, 0.75, 1-year, 0.85, lifetime suicide attempts detection, 0.87). Our findings indicate that information from self-report clinical scales can be useful for the classification of suicide attempts. Based on the reliable performance of the top five predictors alone, this machine learning approach could help clinicians identify high-risk patients in clinical settings. PMID- 29038652 TI - Hierarchical Recursive Organization and the Free Energy Principle: From Biological Self-Organization to the Psychoanalytic Mind. AB - The present paper argues that a systems theory epistemology (and particularly the notion of hierarchical recursive organization) provides the critical theoretical context within which the significance of Friston's (2010a) Free Energy Principle (FEP) for both evolution and psychoanalysis is best understood. Within this perspective, the FEP occupies a particular level of the hierarchical organization of the organism, which is the level of biological self-organization. This form of biological self-organization is in turn understood as foundational and pervasive to the higher levels of organization of the human organism that are of interest to both neuroscience as well as psychoanalysis. Consequently, central psychoanalytic claims should be restated, in order to be located in their proper place within a hierarchical recursive organization of the (situated) organism. In light of the FEP the realization of the psychoanalytic mind by the brain should be seen in terms of the evolution of different levels of systematic organization where the concepts of psychoanalysis describe a level of hierarchical recursive organization superordinate to that of biological self-organization and the FEP. The implication of this formulation is that while "psychoanalytic" mental processes are fundamentally subject to the FEP, they nonetheless also add their own principles of process over and above that of the FEP. A model found in Grobbelaar (1989) offers a recursive bottom-up description of the self organization of the psychoanalytic ego as dependent on the organization of language (and affect), which is itself founded upon the tendency toward autopoiesis (self-making) within the organism, which is in turn described as formally similar to the FEP. Meaningful consilience between Grobbelaar's model and the hierarchical recursive description available in Friston's (2010a) theory is described. The paper concludes that the valuable contribution of the FEP to psychoanalysis underscores the necessity of reengagement with the core concepts of psychoanalytic theory, and the usefulness that a systems theory epistemology particularly hierarchical recursive description-can have for this goal. PMID- 29038653 TI - Editorial: Inflammation in the CNS: Advancing the Field Using Intravital Imaging. PMID- 29038654 TI - CpG-ODN Facilitates Effective Intratracheal Immunization and Recall of Memory against Neoantigen-Expressing Alveolar Cells. AB - Intrapulmonary immune reactions are impaired by the tolerogenic environment of the lung. This is manifested by the absence of effective endogenous T cell responses upon neoantigen expression. This tolerance is considered to contribute to lung cancer and inefficient immune therapeutic interventions. To investigate the mechanisms contributing to lung tolerance and to overcome these restrictions, we developed a transgenic mouse model with induction of a neoantigen (OVA) exclusively in alveolar type II epithelial cells. This model is characterized by the absence of functional endogenous T cell responses upon OVA neoantigen induction. Standard DNA and protein vaccination protocols resulted in the accumulation of high numbers of antigen-specific CD8 T cells in the lung. However, clearance of antigen-expressing cells was not achieved. To overcome this tolerance, we induced inflammatory conditions by coapplication of the TLR ligands LPS and CpG-ODN during intrapulmonary vaccinations. Both ligands induced high numbers of neoantigen-specific T cells in the lung. However, only coapplication of CpG-ODN was sufficient to establish functional cytotoxic responses resulting in the elimination of neoantigen presenting target cells. Remarkably, CpG-ODN was also crucial for functional memory responses upon re-induction of the neoantigen. The results highlight the need of TLR9 co-stimulation for overcoming tolerization, which might be a key factor for therapeutic interventions. PMID- 29038655 TI - Editorial: Induction of Central Nervous System Disease by the Adaptive Immune Response. PMID- 29038656 TI - Unveiling a Drift Resistant Cryptotope within Marburgvirus Nucleoprotein Recognized by Llama Single-Domain Antibodies. AB - Marburg virus (MARV) is a highly lethal hemorrhagic fever virus that is increasingly re-emerging in Africa, has been imported to both Europe and the US, and is also a Tier 1 bioterror threat. As a negative sense RNA virus, MARV has error prone replication which can yield progeny capable of evading countermeasures. To evaluate this vulnerability, we sought to determine the epitopes of 4 llama single-domain antibodies (sdAbs or VHH) specific for nucleoprotein (NP), each capable of forming MARV monoclonal affinity reagent sandwich assays. Here, we show that all sdAb bound the C-terminal region of NP, which was produced recombinantly to derive X-ray crystal structures of the three best performing antibody-antigen complexes. The common epitope is a trio of alpha helices that form a novel asymmetric basin-like depression that accommodates each sdAb paratope via substantial complementarity-determining region (CDR) restructuring. Shared core contacts were complemented by unique accessory contacts on the sides and overlooks of the basin yielding very different approach routes for each sdAb to bind the antigen. The C-terminal region of MARV NP was unable to be crystallized alone and required engagement with sdAb to form crystals suggesting the antibodies acted as crystallization chaperones. While gross structural homology is apparent between the two most conserved helices of MARV and Ebolavirus, the positions and morphologies of the resulting basins were markedly different. Naturally occurring amino acid variations occurring in bat and human Marburgvirus strains all mapped to surfaces distant from the predicted sdAb contacts suggesting a vital role for the NP interface in virus replication. As an essential internal structural component potentially interfacing with a partner protein it is likely the C-terminal epitope remains hidden or "cryptic" until virion disruption occurs. Conservation of this epitope over 50 years of Marburgvirus evolution should make these sdAb useful foundations for diagnostics and therapeutics resistant to drift. PMID- 29038657 TI - Platelet-Derived Chemokine CXCL7 Dimer Preferentially Exists in the Glycosaminoglycan-Bound Form: Implications for Neutrophil-Platelet Crosstalk. AB - Platelet-derived chemokine CXCL7 (also known as NAP-2) plays a crucial role in orchestrating neutrophil recruitment in response to vascular injury. CXCL7 exerts its function by activating the CXC chemokine receptor 2 (CXCR2) receptor and binding sulfated glycosaminoglycans (GAGs) that regulate receptor activity. CXCL7 exists as monomers, dimers, and tetramers, and previous studies have shown that the monomer dominates at lower and the tetramer at higher concentrations. These observations then raise the question: what, if any, is the role of the dimer? In this study, we make a compelling observation that the dimer is actually the favored form in the GAG-bound state. Further, we successfully characterized the structural basis of dimer binding to GAG heparin using solution nuclear magnetic resonance (NMR) spectroscopy. The chemical shift assignments were obtained by exploiting heparin binding-induced NMR spectral changes in the WT monomer and dimer and also using a disulfide-linked obligate dimer. We observe that the receptor interactions of the dimer are similar to the monomer and that heparin bound dimer is occluded from receptor interactions. Cellular assays also show that the heparin-bound CXCL7 is impaired for CXCR2 activity. We conclude that the dimer-GAG interactions play an important role in neutrophil-platelet crosstalk, and that these interactions regulate gradient formation and the availability of the free monomer for CXCR2 activation and intrathrombus neutrophil migration to the injury site. PMID- 29038658 TI - The Peyer's Patch Mononuclear Phagocyte System at Steady State and during Infection. AB - The gut represents a potential entry site for a wide range of pathogens including protozoa, bacteria, viruses, or fungi. Consequently, it is protected by one of the largest and most diversified population of immune cells of the body. Its surveillance requires the constant sampling of its encounters by dedicated sentinels composed of follicles and their associated epithelium located in specialized area. In the small intestine, Peyer's patches (PPs) are the most important of these mucosal immune response inductive sites. Through several mechanisms including transcytosis by specialized epithelial cells called M-cells, access to the gut lumen is facilitated in PPs. Although antigen sampling is critical to the initiation of the mucosal immune response, pathogens have evolved strategies to take advantage of this permissive gateway to enter the host and disseminate. It is, therefore, critical to decipher the mechanisms that underlie both host defense and pathogen subversive strategies in order to develop new mucosal-based therapeutic approaches. Whereas penetration of pathogens through M cells has been well described, their fate once they have reached the subepithelial dome (SED) remains less well understood. Nevertheless, it is clear that the mononuclear phagocyte system (MPS) plays a critical role in handling these pathogens. MPS members, including both dendritic cells and macrophages, are indeed strongly enriched in the SED, interact with M cells, and are necessary for antigen presentation to immune effector cells. This review focuses on recent advances, which have allowed distinguishing the different PP mononuclear phagocyte subsets. It gives an overview of their diversity, specificity, location, and functions. Interaction of PP phagocytes with the microbiota and the follicle-associated epithelium as well as PP infection studies are described in the light of these new criteria of PP phagocyte identification. Finally, known alterations affecting the different phagocyte subsets during PP stimulation or infection are discussed. PMID- 29038659 TI - In Silico Prediction Analysis of Idiotope-Driven T-B Cell Collaboration in Multiple Sclerosis. AB - Memory B cells acting as antigen-presenting cells are believed to be important in multiple sclerosis (MS), but the antigen they present remains unknown. We hypothesized that B cells may activate CD4+ T cells in the central nervous system of MS patients by presenting idiotopes from their own immunoglobulin variable regions on human leukocyte antigen (HLA) class II molecules. Here, we use bioinformatics prediction analysis of B cell immunoglobulin variable regions from 11 MS patients and 6 controls with other inflammatory neurological disorders (OINDs), to assess whether the prerequisites for such idiotope-driven T-B cell collaboration are present. Our findings indicate that idiotopes from the complementarity determining region (CDR) 3 of MS patients on average have high predicted affinities for disease associated HLA-DRB1*15:01 molecules and are predicted to be endosomally processed by cathepsin S and L in positions that allows such HLA binding to occur. Additionally, complementarity determining region 3 sequences from cerebrospinal fluid (CSF) B cells from MS patients contain on average more rare T cell-exposed motifs that could potentially escape tolerance and stimulate CD4+ T cells than CSF B cells from OIND patients. Many of these features were associated with preferential use of the IGHV4 gene family by CSF B cells from MS patients. This is the first study to combine high-throughput sequencing of patient immune repertoires with large-scale prediction analysis and provides key indicators for future in vitro and in vivo analyses. PMID- 29038660 TI - Genetic Regulation of GA Metabolism during Vernalization, Floral Bud Initiation and Development in Pak Choi (Brassica rapa ssp. chinensis Makino). AB - Pak choi (Brassica rapa ssp. chinensis Makino) is a representative seed vernalization vegetable and premature bolting in spring can cause significant economic loss. Thus, it is critical to elucidate the mechanism of molecular regulation of vernalization and floral bud initiation to prevent premature bolting. Gibberellin (GA) is the key plant hormone involved in regulating plant development. To gain a better understanding of GA metabolism in pak choi, the content of GA in pak choi was measured at different stages of plant development using enzyme-linked immunosorbent assay. The results showed that the GA content increased significantly after low-temperature treatment (4 degrees C) and then decreased rapidly with vegetative growth. During floral bud initiation, the GA content increased rapidly until it peaked upon floral bud differentiation. To elucidate these changes in GA content, the expression of homologous genes encoding enzymes directly involved in GA metabolism were analyzed. The results showed that the changes in the expression of four genes involved in GA synthesis (Bra035120 encoding ent-kaurene synthase, Bra009868 encoding ent-kaurene oxidase, Bra015394 encoding ent-kaurenoic acid oxidase, and Bra013890 encoding GA20 oxidase) were correlated with the changes in GA content. In addition, by comparing the expression of genes involved in GA metabolism at different growth stages, seven differentially expressed genes (Bra005596, Bra009285, Bra022565, Bra008362, Bra033324, Bra010802, and Bra030500) were identified. The differential expression of these genes were directly correlated with changes in GA content, suggesting that these genes were directly related to vernalization, floral bud initiation and development. These results contribute to the understanding of the molecular mechanism of changes in GA content during different developmental phases in pak choi. PMID- 29038661 TI - Assembly and Annotation of Transcriptome Provided Evidence of miRNA Mobility between Wheat and Wheat Stem Sawfly. AB - Wheat Stem Sawfly (WSS), Cephus Cinctus Norton (Hymenoptera: Cephidae), is one of the most important pests, causing yield and economic losses in wheat and barley. The lack of information about molecular mechanisms of WSS for defeating plant's resistance prevents application of effective pest control strategies therefore, it is essential to identify the genes and their regulators behind WSS infestations. Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are recognized with their regulatory functions on gene expression, tuning protein production by controlling transcriptional and post-transcriptional activities. A transcriptome-guided approach was followed in order to identify miRNAs, lncRNAs, and mRNA of WSS, and their interaction networks. A total of 1,893 were presented here as differentially expressed between larva and adult WSS insects. There were 11 miRNA families detected in WSS transcriptome. Together with the annotation of 1,251 novel mRNAs, the amount of genetic information available for WSS was expanded. The network between WSS miRNAs, lncRNAs, and mRNAs suggested miRNA mediated regulatory roles of lncRNAs as competing endogenous RNAs. In the light of the previous evidence that small RNA molecules of a pathogen could suppress the immune response of host plant, we analyzed the putative interactions between larvae and wheat at the miRNA level. Overall, this study provides a profile of larva and adult WSS life stages in terms of coding and non-coding elements. These findings also emphasize the potential roles of wheat and larval miRNAs in wheat resistance to infestation and in the suppression of resistance which is critical for the development of effective pest control strategies. PMID- 29038662 TI - Multidrug Resistant Enteric Bacterial Pathogens in a Psychiatric Hospital in Ghana: Implications for Control of Nosocomial Infections. AB - Enteric bacteria are commonly implicated in hospital-acquired or nosocomial infections. In Ghana, these infections constitute an important public health problem but little is known about their contribution to antibiotic resistance. The aim of the study was to determine the extent and pattern of antibiotic resistance of enteric bacteria isolated from patients and environmental sources at the Accra Psychiatric Hospital. A total of 265 samples were collected from the study site including 142 stool and 82 urine samples from patients, 7 swab samples of door handle, and 3 samples of drinking water. Enteric bacteria were isolated using standard microbiological methods. Antibiograms of the isolates were determined using the disc diffusion method. Overall, 232 enteric bacteria were isolated. Escherichia coli was the most common (38.3%), followed by Proteus (19.8%), Klebsiella (17.7%), Citrobacter (14.7%), Morganella (8.2%), and Pseudomonas (1.3%). All isolates were resistant to ampicillin but sensitive to cefotaxime. The resistance ranged from 15.5% to 84.5%. Multidrug resistance was most prevalent (100%) among isolates of Proteus and Morganella and least prevalent among isolates of Pseudomonas (33.3%). Multidrug resistance among enteric bacteria at the study hospital is high and hence there is a need for screening before therapy to ensure prudent use of antibiotics. PMID- 29038663 TI - Repetition Blindness for Faces: A Comparison of Face Identity, Expression, and Gender Judgments. AB - Repetition blindness (RB) refers to the impairment in reporting two identical targets within a rapid serial visual presentation stream. While numerous studies have demonstrated RB for words and picture of objects, very few studies have examined RB for faces. This study extended this research by examining RB when the two faces were complete repeats (same emotion and identity), identity repeats (same individual, different emotion), and emotion repeats (different individual, same emotion) for identity, gender, and expression judgment tasks. Complete RB and identity RB effects were evident for all three judgment tasks. Emotion RB was only evident for the expression and gender judgments. Complete RB effects were larger than emotion or identity RB effects across all judgment tasks. For the expression judgments, there was more emotion than identity RB. The identity RB effect was larger than the emotion RB effect for the gender judgments. Cross task comparisons revealed larger complete RB effects for the expression and gender judgments than the identity decisions. There was a larger emotion RB effect for the expression than gender judgments and the identity RB effect was larger for the gender than for the identity and expression judgments. These results indicate that while faces are subject to RB, this is affected by the type of repeated information and relevance of the facial characteristic to the judgment decision. This study provides further support for the operation of separate processing mechanisms for face gender, emotion, and identity information within models of face recognition. PMID- 29038664 TI - Trypophobic Discomfort is Spatial-Frequency Dependent. AB - Clusters of holes, such as those in a lotus seedpod, induce trypophobic discomfort. Previous research has demonstrated that high-contrast energy at midrange spatial frequencies in images causes trypophobic discomfort. The present study examined the effects on discomfort of eliminating various spatial frequency components from the images to reveal how each spatial frequency contributes to the discomfort. Experiment 1 showed that eliminating midrange spatial frequencies did not affect trypophobic discomfort, while Experiment 2 revealed that images of holes that consisted of only high-spatial frequencies evoked less discomfort than other images and that images containing only low or midrange spatial frequencies induced as much trypophobic discomfort as did the original images. Finally, Experiment 3 found that participants with a high level of the trypophobic trait experienced stronger discomfort from the original images and the images containing only low or midrange spatial frequencies than participants with a low level of the trypophobic trait. Our findings thus suggest that trypophobic discomfort can be induced by middle and low spatial frequencies. PMID- 29038665 TI - C-Reactive Protein as an Independent Cardiovascular Risk Predictor in HIV+ Patients: A Focused Review of Published Studies. AB - Patients infected with the human immunodeficiency virus (HIV+) are living longer and at heightened risk for developing cardiovascular events (CVEs). Commonly used prediction tools appear to misrepresent their CVE risk to varying degrees and in varying directions. Inclusion of markers of cellular infection, chronic immune activation and/or systemic inflammation into risk models might provide better predictive accuracy. Observational studies assessing the relationship of high sensitivity C-reactive protein (hs-CRP) to CVE in HIV+ patients have reported inconsistent findings. This review of published studies attempted to determine if the available evidence supports its potential use in new models for stable, treated HIV+ patients. We searched the PubMed database using keywords and combinations of "HIV" AND "cardiovascular risk" AND "CRP". Papers presenting original analyses, associating hs-CRP concentration as an independent variable to hard cardiovascular outcomes (myocardial infarction and cardiovascular death), or to hard CVE as part of a composite endpoint, were included. Five observational studies met inclusion/exclusion criteria for review. Three papers identified an association between elevated hs-CRP and CVE, while two others failed to find any significant association. All reports were heterogeneous in terms of independent variables, controls, and designs. The larger and more rigorous studies, employing higher rates of confounder controls and more objective endpoints in their composites, showed positive associations. Though not conclusive, the preponderance of the evidence at this time supports CRP as a potentially valuable factor to be studied in prospective cardiovascular risk prediction investigations in HIV+ patients. PMID- 29038666 TI - Study of Methylene Blue Ototoxicity in the Guinea Pig. AB - BACKGROUND: Methylene blue is widely used in the medical field, especially as a blue dye for staining. It is also used as a photosensitizing agent in antimicrobial photodynamic therapy, which once photoactivated is effective for the eradication of several multi-resistant bacteria. The objective of this study was to investigate the ototoxic potential of methylene blue and precise its use in otology. METHODS: It was a prospective animal study performed on guinea pigs in our tertiary medical center. We divided the animals into two groups: an experimental group and a control group, who underwent a series of three intratympanic (IT) injections. In the control group (n = 10), they received injections of gentamicin in one ear (positive control) and normal saline in the contralateral ear (negative control). The experimental group (n = 10) received injections of methylene blue in one ear, compared to injections of normal saline in the contralateral ear. We conducted auditory-evoked brainstem response (ABR) before and 1 week after the injection series. Once this is completed, the cochlea was dissected and caspase-3 was analyzed by immunohistochemistry. RESULTS: The mean difference of hearing loss in the methylene blue group compared to normal saline was 1.50 dB, and it was not shown to be statistically significant (P = 0.688). For the positive control group, which received IT injections of gentamicin, the mean threshold of hearing loss difference for all the frequencies combined was 66.25 dB (P < 0.001). Furthermore, uptake of caspase-3 by immunohistochemistry (apoptotic marker) was negative in our group, which received injections of methylene blue. CONCLUSION: In light of our results, IT injections of methylene blue did not demonstrate an ototoxic potential. We recommend further studies to precise its use in the otologic field. PMID- 29038667 TI - Predicting Mortality of Patients With Sepsis: A Comparison of APACHE II and APACHE III Scoring Systems. AB - BACKGROUND: Acute Physiology, Age and Chronic Health Evaluation (APACHE) II and III scores were developed in 1985 and 1991, respectively, and are used mainly for critically ill patients of all disease categories admitted to the intensive care unit (ICU). They differ in how chronic health status is assessed, in the number of physiologic variables included (12 vs. 17), and in the total score. These two scoring systems have not been compared in predicting hospital mortality in patients with sepsis. METHODS: We retrospectively identified all septic patients admitted to our 54-bed medical-surgical ICU between June 2009 and February 2014 using the APACHE outcomes database. We calculated correlation coefficients for APACHE II and APACHE III scores in predicting hospital mortality. Receiver operating characteristic (ROC) curves were also used to assess the mortality predictions. RESULTS: We identified a total of 2,054 septic patients. Average APACHE II score was 19 +/- 7, and average APACHE III score was 68 +/- 28. ICU mortality was 11.8% and hospital mortality was 18.3%. Both APACHE II (r = 0.41) and APACHE III scores (r = 0.44) had good correlations with hospital mortality. There was no statistically significant difference between the two correlations (P = 0.1). ROC area under the curve (AUC) was 0.80 (95% confidence interval (CI): 0.78 - 0.82) for APACHE II, and 0.83 (95% CI: 0.81 - 0.85) for APACHE III, suggesting that both scores have very good discriminative powers for predicting hospital mortality. CONCLUSIONS: This study shows that both APACHE II and APACHE III scores in septic patients were very strong predictors of hospital mortality. APACHE II was as good as APACHE III in predicting hospital mortality in septic patients. PMID- 29038668 TI - Overcrowding and Its Association With Patient Outcomes in a Median-Low Volume Emergency Department. AB - BACKGROUND: Crowding occurs commonly in high volume emergency departments (ED) and has been associated with negative patient care outcomes. We aim to assess ED crowding in a median-low volume setting and evaluate associations with patient care outcomes. METHODS: This was a prospective single-center study from November 14, 2016 until December 14, 2016. ED crowding was measured every 2 h by three different estimation tools: National Emergency Department Overcrowding Score (NEDOCS); Community Emergency Department Overcrowding Score (CEDOCS); and Severely-overcrowding Overcrowding and Not-overcrowding Estimation Tool (SONET) categorized under six different levels of crowding (not busy, busy, extremely busy, overcrowded, severely overcrowded, and dangerously overcrowded). Crowding scores were assigned to each patient upon ED arrival. We evaluated the distributions of crowding and patient ED length of stay (ED LOS) across estimation tools. Accelerated failure time models were utilized to estimate time ratios and their corresponding 95% confidence intervals comparing median LOS across levels of crowding within each estimation tool. RESULTS: This study comprised 2,557 patients whose median ED LOS was 150 min. Approximately 2% of patients arrived during 2 h time intervals deemed overcrowded regardless of the crowding tool used. Median ED LOS increased with the increased level of ED crowding and prolonged median ED LOS (> 150 min) occurred at ED of extremely busy status. Time ratios ranged from 1.09 to 1.48 for NEDOCS, 1.25 - 1.56 for CEDOCS, and 1.26 - 1.72 for SONET. CONCLUSION: Overcrowding rarely occurred in study ED with median-low annual volume and might not be a valuable marker for ED crowding report. Though similar patterns of prolonged ED LOS occurred with increased levels of ED crowding, it seems crowding alerts should be initiated during extremely busy status in this ED setting. PMID- 29038669 TI - Body Composition Is Altered in Pre-Diabetic Patients With Impaired Fasting Glucose Tolerance: Results From the NHANES Survey. AB - BACKGROUND: Previous studies suggest that type 2 diabetes mellitus (T2DM) is associated with a loss of muscle mass but the impact of fasting blood glucose (FBG) on body composition remains underappreciated in pre-diabetic subjects. The aim of this study was to determine the influence of FBG on lean mass (LM), fat mass (FM) and their distribution (trunk vs. appendicular), separately in middle aged men and women. METHODS: One thousand nine hundred and eleven (1,911) men (63.9 +/- 11.7 years) and 1,977 women (63.7 +/- 12.1 years) from the National Health and Nutrition Examination Survey (1999 - 2004) were divided into four groups: normal glucose tolerance (NGT), low impaired fasting glucose (IFG), high IFG and T2DM. Body composition was obtained from dual X-ray absorptiometry (DXA). RESULTS: Of the patients, 68.7% had NGT, 16.1% low IFG, 9.4% high IFG and 5.8% T2DM. After adjustment for age, body mass index, ethnicity, smoking, alcohol and physical activity (PA), no change in appendicular LM was observed between groups, but significant increases in trunk FM (in both gender) and trunk LM (in women) were found with increased glucose intolerance (T2DM > IFG > NGT), as well as significant decreases in trunk and total LM/FM ratios (T2DM < IFG < NGT) and a significant increase in trunk/appendicular FM ratio (T2DM > IFG > NGT). CONCLUSIONS: Elevated FBG within the normal range is not associated with a significant loss of appendicular LM, but modifications in LM and FM trunk and total distribution with IFG suggest that nutritional and physical lifestyle strategies should be implemented in the pre-diabetic state. PMID- 29038670 TI - Can Total Body Resistance Measured Using Bioelectrical Impedance Analysis Be the Index of Dehydration in Older Japanese Patients? AB - BACKGROUND: Dehydration in older patients has long been considered a significant health problem because it implies increased morbidity and mortality. However, dehydration is detected by a combination of physical signs and blood tests. For older people dwelling at home and in nursing homes, a simple and non-invasive method for detecting dehydration by caregivers is needed. The total body resistance is measured using bioelectrical impedance analysis and is known as an indicator of dehydration. There are no data from older Japanese patients on this issue. We performed this study to examine the relationship between dehydration and total body resistance in Japan. METHODS: We performed blood tests and measured bioelectrical impedance in older outpatients aged >= 65 years from the Internal Medicine Department at Mito Kyodo General Hospital. Patients were classified as dehydrated and non-dehydrated using the dehydration index with a blood urea nitrogen/creatinine ratio > 20, and the mean total body resistance was compared between the two groups. RESULTS: Eighty-one patients were recruited in the study. In the dehydrated group, the mean total body resistance was 439 Omega at 50 kHz, which was significantly higher than that in the non-dehydrated group (408 Omega, P = 0.038). CONCLUSIONS: The total body resistance measurements can be used for simple assessment of dehydration among older Japanese patients. PMID- 29038671 TI - Inspiratory Muscle Training in the Intensive Care Unit: A New Perspective. AB - BACKGROUND: Prolonged use of mechanical ventilation (MV) leads to weakening of the respiratory muscles, especially in patients subjected to sedation, but this effect seems to be preventable or more quickly reversible using respiratory muscle training. The aims of the study were to assess variations in respiratory and hemodinamic parameters with electronic inspiratory muscle training (EIMT) in tracheostomized patients requiring MV and to compare these variations with those in a group of patients subjected to an intermittent nebulization program (INP). METHODS: This was a pilot, prospective, randomized study of tracheostomized patients requiring MV in one intensive care unit (ICU). Twenty-one patients were randomized: 11 into the INP group and 10 into the EIMT group. Two patients were excluded in experimental group because of hemodynamic instability. RESULTS: In the EIMT group, maximal inspiratory pressure (MIP) after training was significantly higher than that before (P = 0.017), there were no hemodynamic changes, and the total weaning time was shorter than in the INP group (P = 0.0192). CONCLUSION: The EIMT device is safe, promotes an increase in MIP, and leads to a shorter ventilator weaning time than that seen in patients treated using INP. PMID- 29038672 TI - Safety Analysis of Autologous Stem Cell Therapy in a Variety of Degenerative Diseases and Injuries Using the Stromal Vascular Fraction. AB - BACKGROUND: Stem cells from adipose tissue offer a novel therapy for patients with damaged tissue. Stromal vascular fraction (SVF) injected into patients may reduce inflammation, promote healing, and repair damaged/scarred tissue. SVF can be isolated from fat (adipose) tissue in an outpatient procedure. The SVF population includes mesenchymal stem cells (MSCs), pericytes, endothelial/progenitor cells, fibroblasts and growth factors where the adipocyte (fat cell) population has been removed. Here we describe the use of SVF in the clinic for degenerative diseases in orthopedics, neurological conditions and systemic conditions in 676 patients. METHODS: This study demonstrated the strong safety profile from a multi-center analysis of SVF injection in treating various diseases. Approximately 60 mL of fat tissue was removed from the abdomen or flanks using a local tumescent liposuction procedure. The fat was separated via centrifuge to isolate the SVF and the cells were delivered intraarticularly, intravenously, intrathecally, or intradiscally directly into the same patient. All subjects were monitored for adverse events. RESULTS: The procedure demonstrates exceptional patient safety, and the study underscores the safety of autologous stem cell therapy in general. Few adverse events were reported and were overwhelmingly of mild and transient nature, such as the expected soreness at the site of liposuction and occasional headache. CONCLUSION: The three deaths reported were most likely not related to the treatment but instead to the underlying disease. Our study demonstrates a strong safety profile with low complication rates. PMID- 29038673 TI - Thiazides and Osteoporotic Spinal Fractures: A Suspected Linkage Investigated by Means of a Two-Center, Case-Control Study. AB - BACKGROUND: An alleged association of chronic use of thiazide diuretics with an increased risk of bone fragility fractures has been highlighted by a relatively recent prospective cohort study. However, the concept that thiazides exert a beneficial effect on osteoporosis is still a predominant view. This effect would be mediated by the decrease in renal clearance of calcium ions, a pharmacological feature recognized for a long time now to this class of drugs, as opposed to the increase in calcium urinary excretion attributed instead to loop diuretics, i.e. furosemide and similar drugs. The purpose of this retrospective study was to attempt to clarify whether regular use of thiazide diuretics as antihypertensive therapeutics is associated with a significantly increased risk of osteoporotic fractures in female patients aged 65 or over. METHODS: In this two-center retrospective study, we followed up a cohort of female patients with (n = 80) and without (n = 158) thiazide-induced hyponatremia. RESULTS: A total of 48 osteoporotic fractures were recorded during a median follow-up period of 57.5 months. By means of univariate regression analysis, an association was found between thiazide-induced hyponatremia and increased risk of vertebral fractures (odds ratio (OR): 7.6; 95% confidence interval (CI): 3.755 - 15.39; P < 0.0001). Multivariate regression analysis, however, showed that age (OR: 1.823; 95% CI: 1.211 - 2.743) and body mass index (OR: 0.156; 95% CI: 0.038 - 0.645) were the only independent predictors of osteoporotic fractures. No association of a history of thiazide-induced hyponatremia and risk of fracture was noticeable in the final model. CONCLUSIONS: Because thiazide-induced hyponatremia was associated with spinal fractures in univariate but not multivariate analysis, a possible explanation is that hyponatremia may be a confounder of the relation between body mass and spinal fractures. Indeed, reduced body mass especially among elderly women with small body build may confer heightened risk of thiazide induced hyponatremia because of decreased bone sodium available for exchange with the serum sodium. Thus, occurrence of hyponatremia could only serve as an indirect surrogate marker for osteoporosis risk. PMID- 29038674 TI - Recent Reason for Hindering Medications for Perinatal Mental Disorders in Japan. AB - BACKGROUND: We examined the recent reasons for hindering antipsychotic medications during pregnancy in Japan. METHODS: We retrospectively analyzed the medical charts of all women who gave birth after 22 weeks' gestation at Japanese Red Cross Katsushika Maternity Hospital from August 2016 to July 2017. RESULTS: Four pregnant women with mental disorders (three schizophrenia and one adjustment disorder) kept the interruption of medications under their partners' compulsion. All of their partners had a history of mental disorders (two schizophrenia, one anxiety disorder and one adjustment disorder). CONCLUSION: In cases of pregnancy requiring mental health care, mental health care on partners seemed to be also needed. PMID- 29038675 TI - Secondary Central Nerve System Lymphoma With Intratumoral Hemorrhage Suggested as Intravascular Lymphoma by Autopsy: A Case Report. AB - Intravascular large B-cell lymphoma (IVL) is a rare type of extranodal diffuse large B-cell lymphoma (DLBCL), which often infiltrates the central nervous system (CNS) during the clinical course. Cerebral hemorrhage in patients with CNS lymphoma at presentation is rare. Herein, we describe a case of secondary CNS lymphoma with intratumoral hemorrhage, which was suggested as IVL from autopsy findings. A 76-year-old Japanese man with a history of treatment for B-cell non Hodgkin's lymphoma was transferred to our hospital in an ambulance for generalized convulsions. Brain CT scan revealed a high-density tumor with edema and intratumoral hemorrhage in the left temporal lobes. He died in a rapid course, and autopsy revealed a focal hemorrhage with diffuse infiltration of lymphoma cells in the left temporal lobe and findings suggestive of IVL. Furthermore, the autopsy revealed a discrepancy in the CD20 immunostaining of lymphoma cells between the brain and other organs. Clinicians should not eliminate CNS lymphoma from the differential diagnosis of intracranial tumor with hemorrhage. Although many patients with IVL have rapidly progressive courses, it is very important to diagnose IVL at the initial onset, even in serious situations, to consider CNS prophylaxis. PMID- 29038676 TI - Adult-Onset Henoch-Schonlein Purpura Duodenitis. AB - Henoch-Schonlein purpura (HSP) is an immune-mediated vasculitis. HSP presents with purple spots on the skin (purpura), arthralgia, digestive problems, and kidney injury. HSP is most commonly seen in children, and rarely presents in adults. The pathogenesis involves the deposition of immune complexes in small to medium size blood vessels which leads to necrosis and inflammation. Most patients recover after symptomatic treatment, while more severe cases are treated with steroids. We report a 28-year-old female patient who presented with two episodes of hematemesis, worsening abdominal pain, and bloody diarrhea. Physical examination showed erythematous, palpable, purpuric rashes on her thighs and lower legs. Contrast-enhanced computed tomography (CT) scan showed thickening of the duodenal wall, and upper endoscopy revealed mild gastric erythema and diffuse erythematous, hemorrhagic, friable mucosa with superficial, thick, adherent white exudate seen in the second portion of the duodenum, consistent with the diagnosis of HSP. We report on the clinical presentation of our patient, and review adult onset HSP. PMID- 29038677 TI - Newly Diagnosed Idiopathic Liver Abscess: Colonoscopy Required! AB - Liver abscess is the most common type of visceral abscess reported in the United States. Biliary tract disease is the most common cause of the development of liver abscess. In the last decade, many cases of liver abscesses silently manifesting as colon cancer have been reported in East Asian countries. We herein describe a case of an immunocompetent man who immigrated from East Africa to Unites States and presented with a suspicion of colon mass with metastasis to the liver, and who was later diagnosed to have a colonic malignancy with a concomitant liver abscess. Our aim was to make clinicians aware of the importance of ruling out occult colonic malignancy in patients with idiopathic liver abscess. PMID- 29038678 TI - Posttraumatic growth and recovery from addiction. AB - Background: It is well documented that individuals coping with adverse events report both negative outcomes, such as posttraumatic stress symptoms, as well as positive changes, described as posttraumatic growth. Positive changes are also reported in people who have recovered from substance abuse. It seems plausible from the literature that both of these types of positive changes have elements in common. To date, no published studies have examined positive outcomes among people who have recovered from addiction. Objectives: In this study, posttraumatic growth in individuals who were formerly addicted to alcohol or substances, termed 'addiction-related growth,' was examined. Addiction-related growth refers to the growth that an individual undergoes as a result of the addiction itself, and the recovery from the addiction. A successful recovery from addiction is associated with positive changes, particularly regarding spirituality and meaning-making, and the construct of addiction-related growth may explain why. Method: This cross-sectional study examined growth among 104 individuals who had recovered from addiction who were recruited from addiction treatment programmes, between February and July 2012. Questionnaires assessed demographics and substance abuse use and treatment, posttraumatic growth (PTGI); social support (Perceived Social Support Questionnaire); and help-seeking (Willingness to Seek Help Scale). Data was analysed using an analysis of variance (ANOVA), Pearson correlations, and multiple regression. Results: Results indicated that addiction-related growth is a phenomenon that accurately captures the positive changes experienced as a result of an individual's struggle with addiction and recovery. This growth was found to be associated with participation in 12-steps programmes, and to be predicted by levels of perceived social support. Conclusions: The results show that recovery from addiction is associated with addiction-related growth. These positive changes, along with the importance of communal social support, resemble the changes that take place as a result of processes described in 12-steps programmes. PMID- 29038679 TI - Day patient treatment for traumatic grief: preliminary evaluation of a one-year treatment programme for patients with multiple and traumatic losses. AB - Background: Bereaved individuals who have lost a loved one under traumatic circumstances can develop symptoms of Persistent Complex Bereavement Disorder (PCBD) and/or Posttraumatic Stress Disorder (PTSD). This is particularly common in refugees, as they frequently have been confronted with multiple traumatic losses. For patients with severe PTSD and traumatic grief a treatment programme was developed, embedding individual traumatic grief focused therapy in a group based multidisciplinary day patient treatment programme. The day patient treatment comprised a weekly five-hour programme consisting of three phases with a duration of four months each. Objective: To evaluate the feasibility and potential effectiveness of the treatment programme. Method: Data were analyzed from 16 participants treated between October 2013 and March 2014. PTSD severity and PTSD/PCBD diagnoses were measured during the initial and final phases of treatment using the Clinician-Administered PTSD Scale for DSM-IV (CAPS) and the Traumatic Grief Inventory Self Report (TGI-SR). One clinical case is presented in more detail. Treatment attendance was also registered and therapist satisfaction was evaluated in a focus group. Results: Thirteen patients (81%) completed the treatment. Each day of the treatment programme was attended by a mean of 76% of the participants. In the focus group, therapists noted symptom reduction in their patients and they therefore regarded Brief Eclectic Psychotherapy for Traumatic Grief (BEP-TG) as an effective therapy for their patients. During treatment, significant decreases in PTSD severity as well as diagnosable PTSD and PCBD were observed. Conclusions: Results support the feasibility and potential effectiveness of the day patient treatment programme for traumatic grief. The programme appears to be particularly suitable for refugees with severe PTSD and PCBD psychopathology, who may not benefit enough from usual care. PMID- 29038680 TI - Post-traumatic stress disorder moderates the relationship between trauma exposure and chronic pain. AB - Background: Trauma exposure and post-traumatic stress disorder (PTSD) are risk factors for chronic pain. Objective: This study investigated how exposure to intentional and non-intentional traumatic events and PTSD are related to pain severity and outcome of treatment in chronic pain patients. Methods: We assessed exposure to potentially traumatizing events, psychiatric diagnosis with structured clinical interview, and pain severity in 63 patients at a secondary multidisciplinary pain clinic at the beginning of treatment, and assessed level of pain at follow up. Exposure to potentially traumatizing events and PTSD were regressed on pain severity at the initial session and at follow up in a set of multiple regression analysis. Results: The participants reported exposure to an average of four potentially traumatizing events, and 32% had PTSD. Exposure to intentional traumatic events and PTSD were significantly associated with more severe pain, and PTSD significantly moderated the relationship between trauma exposure and pain (all p < .05). The treatment programme reduced pain moderately, an effect that was unrelated to trauma exposure and PTSD. Conclusions: Trauma exposure is related to chronic pain in the same pattern as to mental disorders, with intentional trauma being most strongly related to pain severity. PTSD moderated the relationship between trauma exposure and pain. While pain patients with PTSD initially report more pain, they responded equally to specialist pain treatment as persons without PTSD. PMID- 29038681 TI - Treatment of dissociative disorders and reported changes in inpatient and outpatient cost estimates. AB - Background: Interpersonal trauma and trauma-related disorders cost society billions of dollars each year. Because of chronic and severe trauma histories, dissociative disorder (DD) patients spend many years in the mental health system, yet there is limited knowledge about the economic burden associated with DDs. Objective: The current study sought to determine how receiving specialized treatment would relate to estimated costs of inpatient and outpatient mental health services. Method: Patients' and individual therapists' reports of inpatient hospitalization days and outpatient treatment sessions were converted into US dollars. DD patients and their clinicians reported on use of inpatient and outpatient services four times over 30 months as part of a larger, naturalistic, international DD treatment study. The baseline sample included 292 clinicians and 280 patients; at the 30-month follow-up, 135 clinicians and 111 patients. Missing data were replaced in analyses to maintain adequate statistical power. The substantial attrition rate (>50%) should be considered in interpreting findings. Results: Longitudinal and cross-sectional analyses of cost estimates based on patient reported inpatient hospitalization significantly decreased over time. Longitudinal cost estimates based on clinician-reported outpatient services also significantly decreased over time. Cross-sectional cost estimates based on patient and clinician reported inpatient hospitalization were significantly lower for patients in later stages of treatment compared to those struggling with safety and stabilization. Cross-sectional cost estimates based on clinician reported outpatient services were significantly lower for patients in later stages of treatment compared to those in early stages. Conclusions: This pattern of longitudinal and cross-sectional reductions in inpatient and outpatient costs, as reported by both patients and therapists, suggests that DD treatment may be associated with reduced inpatient and outpatient costs over time. Although these preliminary results show decreased mental health care utilization and associated estimated costs, it is not clear whether it was treatment that caused these important changes. PMID- 29038682 TI - Depression as a moderator of STAIR Narrative Therapy for women with post traumatic stress disorder related to childhood abuse. AB - Background: Depression among those who have experienced childhood abuse is associated with earlier onset, more persistent and severe symptoms, more frequent relapse, and poorer treatment outcomes across a variety of psychiatric disorders. In addition, individuals with a history of childhood abuse are more likely to develop post-traumatic stress disorder (PTSD) co-occurring with depression. Objective: This study evaluated whether severity of depression moderated the outcome in a PTSD treatment for childhood abuse survivors. Specifically, we assessed whether individuals with significant depression obtained better outcomes when provided with a two-module treatment which included a skills training component with behavioral activation interventions, Skills Training in Affective and Interpersonal Regulation (STAIR) followed by a trauma-focused component, Narrative Therapy, as compared to two control conditions where one component (STAIR or Narrative Therapy) was replaced with Supportive Counseling. Method: Participants were 104 women with PTSD related to childhood abuse. Participants were randomized into three conditions: (1) STAIR plus Narrative Therapy (SNT), (2) STAIR plus Supportive Counseling (SSC), and (3) Supportive Counseling plus Narrative Therapy (SCNT). Clinician-Administered PTSD Scale for DSM-IV (CAPS-IV) PTSD symptom severity was assessed at pre-treatment, post-treatment, and 3 and 6 month follow-up. Results: Participants with severe depression showed superior PTSD symptom reduction following SNT, while those in the other two conditions experienced a loss of improvement after treatment ended. A similar finding was obtained among those with moderate depression, while among those with low levels of depression, outcomes did not differ across the three treatment conditions. Conclusions: Childhood abuse survivors with severe depression obtained superior outcomes in a treatment that combined skills training with trauma-focused work. Skills packages which contain behavioral activation interventions in combination with trauma-focused work may be particularly beneficial for patients with childhood abuse and severe depression. PMID- 29038683 TI - Bayesian hypothesis testing for human threat conditioning research: an introduction and the condir R package. AB - Threat conditioning procedures have allowed the experimental investigation of the pathogenesis of Post-Traumatic Stress Disorder. The findings of these procedures have also provided stable foundations for the development of relevant intervention programs (e.g. exposure therapy). Statistical inference of threat conditioning procedures is commonly based on p-values and Null Hypothesis Significance Testing (NHST). Nowadays, however, there is a growing concern about this statistical approach, as many scientists point to the various limitations of p-values and NHST. As an alternative, the use of Bayes factors and Bayesian hypothesis testing has been suggested. In this article, we apply this statistical approach to threat conditioning data. In order to enable the easy computation of Bayes factors for threat conditioning data we present a new R package named condir, which can be used either via the R console or via a Shiny application. This article provides both a non-technical introduction to Bayesian analysis for researchers using the threat conditioning paradigm, and the necessary tools for computing Bayes factors easily. PMID- 29038684 TI - Modification of episodic memories by novel learning: a failed replication study. AB - Background: After reactivation, memories can become unstable and sensitive to modification before they are restored into long-term memory. Using behavioural manipulations, reactivated memories may be disrupted via the mechanism of interference (i.e. novel learning). In a laboratory study, Wichert et al. (2013a) showed that new learning after reactivation changed episodic memory, while new learning alone or reactivation alone did not. Objective: Given the potential clinical application of such a procedure in trauma-focused psychological treatments, such as CBT or EMDR, the aim of this study was to replicate Wichert et al. Method: On Day 1, participants (N = 96) viewed and recalled a series of emotional and non-emotional pictures. Then, participants were randomized to one of four groups. One week later, on Day 8, Group 1 reactivated the previously learned pictures and learned new pictures. To control for specific effects of reactivation or new learning, Group 2 only reactivated the previously learned pictures, and Group 3 only learned new pictures. Group 4 received no reactivation and no new learning. On Day 9, all groups indicated for each picture out of a series whether they had seen it on Day 1. Results: The data were analysed using Bayesian hypothesis testing, which allows for quantifying the evidence in favour of the alternative and the null hypothesis. In general, results showed that Group 1 recognized fewer pictures from Day 1 compared to Groups 2 and 4 on Day 9. However, the expected difference between new learning following reactivation (i.e. Group 1) and new learning alone (i.e. Group 3) was not substantially supported by the data for any of our dependent measures. Conclusions: We replicated some of the findings by Wichert et al., but did not find substantial support for the critical difference between new learning following reactivation and new learning alone. PMID- 29038685 TI - Exploring expectation effects in EMDR: does prior treatment knowledge affect the degrading effects of eye movements on memories? AB - Background: Eye movement desensitization and reprocessing (EMDR) is an effective psychological treatment for posttraumatic stress disorder. Recalling a memory while simultaneously making eye movements (EM) decreases a memory's vividness and/or emotionality. It has been argued that non-specific factors, such as treatment expectancy and experimental demand, may contribute to the EMDR's effectiveness. Objective: The present study was designed to test whether expectations about the working mechanism of EMDR would alter the memory attenuating effects of EM. Two experiments were conducted. In Experiment 1, we examined the effects of pre-existing (non-manipulated) knowledge of EMDR in participants with and without prior knowledge. In Experiment 2, we experimentally manipulated prior knowledge by providing participants without prior knowledge with correct or incorrect information about EMDR's working mechanism. Method: Participants in both experiments recalled two aversive, autobiographical memories during brief sets of EM (Recall+EM) or keeping eyes stationary (Recall Only). Before and after the intervention, participants scored their memories on vividness and emotionality. A Bayesian approach was used to compare two competing hypotheses on the effects of (existing/given) prior knowledge: (1) Prior (correct) knowledge increases the effects of Recall+EM vs. Recall Only, vs. (2) prior knowledge does not affect the effects of Recall+EM. Results: Recall+EM caused greater reductions in memory vividness and emotionality than Recall Only in all groups, including the incorrect information group. In Experiment 1, both hypotheses were supported by the data: prior knowledge boosted the effects of EM, but only modestly. In Experiment 2, the second hypothesis was clearly supported over the first: providing knowledge of the underlying mechanism of EMDR did not alter the effects of EM. Conclusions: Recall+EM appears to be quite robust against the effects of prior expectations. As Recall+EM is the core component of EMDR, expectancy effects probably contribute little to the effectiveness of EMDR treatment. PMID- 29038686 TI - The assessment of psychopathology among traumatized refugees: measurement invariance of the Harvard Trauma Questionnaire and the Hopkins Symptom Checklist 25 across five linguistic groups. AB - Background: Questionnaires are widely used to assess the mental health status of refugees, whereas their construct validity largely remains unexplored. Objective: This study examined the construct validity of two widely-used instruments for the assessment of PTSD symptoms (Harvard Trauma Questionnaire [HTQ]; 16 items) and symptoms of anxiety and depression (Hopkins Symptom Check list-25 [HSCL-25]; 25 items) among Dutch and refugee patients with different linguistic backgrounds. Method: We applied exploratory factor analyses and measurement invariance analyses to test construct validity.Participants (n =1 256) were divided into five linguistic groups defined by language family, including four non-western linguistic groups (Indo-Iranian [n = 262], Niger-Congo [n = 134], Semitic [n = 288], and South Slavic languages [n = 199]) and one western linguistic group (Germanic languages; Dutch [n = 373]). Results: Exploratory factor analysis yielded a 3-factor structure of the HTQ and a 2-factor structure of the HSCL-25. Measurement invariance 20 analyses on the HTQ showed strong measurement invariance across the groups of refugee patients. However, Dutch patients reported milder symptom severity on most items of the HTQ. Measurement invariance analyses on the HSCL-25 (not conducted in Dutch patients) indicated partial strong measurement invariance across refugee patients. Conclusion: We conclude that mental health constructs measured by the HTQ and the HSCL25 25 are to a large extent interpreted in a similar way by refugee patients. This indicates that these instruments can be applied in non-western refugee patient populations, and that local idioms of distress and inherent response patterns may not play a major role when applying the HTQ and the HSCL-25 in these populations. Yet, whereas meaningful comparisons of observed PTSD and depression scores between groups of refugee patients with different non30 western linguistic background are feasible, comparisons between patients with a western and non-western linguistic background, as well as comparisons of anxiety scores, are likely to be biased. Future studies need to establish whether the commonly used cut-off scores of both questionnaires apply for refugee patients with non-western linguistic backgrounds. PMID- 29038687 TI - Mental health status of North Korean refugees in South Korea and risk and protective factors: a 10-year review of the literature. AB - Background: North Korean refugees (NKRs) are often exposed to traumatic events in North Korea and during their defection. Furthermore, they face sociocultural barriers in adapting to the new society to which they have defected. Objective: To integrate previous findings on this mentally vulnerable population, we systematically reviewed articles on the mental health of NKRs in South Korea. Method: We searched for empirical studies conducted in the last 10 years in six online databases (international journals: Embase, PubMed, Scopus, Web of Science; Korean journals: DBPIA, KMbase) through June 2017. Only quantitative studies using new empirical data on the mental health of NKRs were included. We summarized the 56 studies ultimately selected in terms of NKRs' mental health status and three domains of associated factors: pre- and post-settlement factors and personal factors. Results: NKRs had a high prevalence and severity of psychiatric symptoms, particularly post-traumatic stress disorder and depression. We identified nine risk factors consistently found in previous studies, including traumatic experience, longer stay periods in third country, forced repatriation, acculturative stress, low income, older age, poor physical health, and female and male sex, as well as four protective factors, including educational level in North Korea, social support, family relationship quality, and resilience. Conclusions: We suggest that future studies focus on the causal interactions between different risk and protective factors and mental health outcomes among NKRs from a longitudinal perspective. Furthermore, comprehensive policies for NKRs' psychological adaptation are needed, particularly the development of evidence-based mental health interventions. PMID- 29038688 TI - Symptoms of posttraumatic stress disorder in a clinical sample of refugees: a network analysis. AB - Background: Network analysis is an emerging methodology for investigating psychopathological symptoms. Given the unprecedented number of refugees and the increased prevalence of mental disorders such as posttraumatic stress disorder (PTSD) in this population, new methodologies that help us better to understand psychopathology in refugees are crucial. Objective: The objective of this study was to explore the network structure and centrality indices of DSM-5 PTSD symptoms in a cross-sectional clinical sample of 151 severely traumatized refugees with and without a formal PTSD diagnosis. Method: The R-packages qgraph and bootnet were used to estimate the structure of a PTSD symptom network and its centrality indices. In addition, robustness and significance analyses for the edges weights and the order of centrality were performed. Results: Three pairs of symptoms showed significantly stronger connections than at least half of the other connections: hypervigilance and exaggerated startle response, intrusion and difficulties falling asleep, and irritability or outbursts of anger and self destructive or reckless behaviour. Emotional cue reactivity had the highest centrality and trauma-related amnesia the lowest. Conclusion: Although only 51.0% of participants fulfilled criteria for a probable PTSD diagnosis, emotional cue reactivity showed the highest centrality, emphasizing the importance of emotional trauma reminders in severely traumatized refugees attending an outpatient clinic. However, due to the small sample size, the results should be interpreted with care. PMID- 29038689 TI - Making connections: exploring the centrality of posttraumatic stress symptoms and covariates after a terrorist attack. AB - Background: Posttraumatic stress symptoms are interconnected. Knowledge about which symptoms of posttraumatic stress are more strongly interconnected or central than others may have implications for the targeting of clinical interventions. Exploring whether symptoms of posttraumatic stress may be differentially related to covariates can contribute to our knowledge on how posttraumatic stress symptoms arise and are maintained. Objective: This study aimed to identify the most central symptoms of posttraumatic stress and their interconnections, and to explore how covariates such as exposure, sex, neuroticism, and social support are related to the network of symptoms of posttraumatic stress. Method: This study used survey data from ministerial employees collected approximately 10 months after the 2011 Oslo bombing that targeted the governmental quarters (n = 190). We conducted network analyses using Gaussian graphical models and the lasso regularization. Results: The network analysis revealed reliably strong connections between intrusive thoughts and nightmares, feeling easily startled and overly alert, and between feeling detached and emotionally numb. The most central symptom in the symptom network was feeling emotionally numb. The covariates were generally not found to have high centrality in the symptom network. An exception was that being female was connected to a high physiological reactivity to reminders of the trauma. Conclusions: Ten months after a workplace terror attack emotional numbness appears to be of high centrality in the symptom network of posttraumatic stress. Fear circuitry and dysphoric symptoms may constitute two functional entities in chronic posttraumatic stress. Clinical interventions targeting numbness may be beneficial in the treatment of posttraumatic stress, at least after workplace terrorism. PMID- 29038690 TI - A Bayesian network analysis of posttraumatic stress disorder symptoms in adults reporting childhood sexual abuse. AB - Background: The network approach to mental disorders offers a novel framework for conceptualizing posttraumatic stress disorder (PTSD) as a causal system of interacting symptoms. Objective: In this study, we extended this work by estimating the structure of relations among PTSD symptoms in adults reporting personal histories of childhood sexual abuse (CSA; N = 179). Method: We employed two complementary methods. First, using the graphical LASSO, we computed a sparse, regularized partial correlation network revealing associations (edges) between pairs of PTSD symptoms (nodes). Next, using a Bayesian approach, we computed a directed acyclic graph (DAG) to estimate a directed, potentially causal model of the relations among symptoms. Results: For the first network, we found that physiological reactivity to reminders of trauma, dreams about the trauma, and lost of interest in previously enjoyed activities were highly central nodes. However, stability analyses suggest that these findings were unstable across subsets of our sample. The DAG suggests that becoming physiologically reactive and upset in response to reminders of the trauma may be key drivers of other symptoms in adult survivors of CSA. Conclusions: Our study illustrates the strengths and limitations of these network analytic approaches to PTSD. PMID- 29038692 TI - Psychotraumatology in Greece. PMID- 29038691 TI - A network analysis of anger, shame, proposed ICD-11 post-traumatic stress disorder, and different types of childhood trauma in foster care settings in a sample of adult survivors. AB - Background: Anger and shame are aspects that are specifically associated with psychopathology and maladaptation after childhood abuse and neglect. They are known to influence symptom maintenance and exacerbation; however, their interaction is not fully understood. Objective: To explore with network analysis the association and interaction of prolonged, complex interpersonal childhood abuse and neglect in institutional foster care settings [institutional abuse (IA)] with anger, shame, and the proposed 11th revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-11) post traumatic stress disorder (PTSD) symptoms in adult survivors. Method: Adult survivors of IA (N = 220, mean age = 57.95 years) participated in the study and were interviewed using the Childhood Trauma Questionnaire, the International Trauma Questionnaire, the State-Trait Anger Expression Inventory, the Displaced Aggression Questionnaire, and shame-related items. To identify the most central aspects, we used a staged network analysis and centrality analysis approach: (1) on the scale level; (2) on the item/symptom level; and (3) with modularity analysis to find communities within the item-level network. Results: Trait anger, anger rumination, emotional abuse, and PTSD re-experiencing symptoms played the most important roles on a scale level and were then further analyzed on the item/symptom level. The most central symptom on the item level was anger rumination related to meaningful past events. The modularity analysis supported discriminant validity of the included scales. Conclusions: Anger is an important factor in the psychopathological processes following childhood abuse. Anger rumination is closely related to PTSD symptoms; however, anger is not a part of the proposed ICD-11 PTSD in the present study. PMID- 29038693 TI - Bio-psycho-social factors affecting sexual self-concept: A systematic review. AB - BACKGROUND: Nowadays, it is believed that mental and emotional aspects of sexual well-being are the important aspects of sexual health. Sexual self-concept is a major component of sexual health and the core of sexuality. It is defined as the cognitive perspective concerning the sexual aspects of 'self' and refers to the individual's self-perception as a sexual creature. OBJECTIVE: The aim of this study was to assess the different factors affecting sexual self-concept. METHODS: English electronic databases including PubMed, Scopus, Web of Science and Google Scholar as well as two Iranian databases including Scientific Information Database and Iranmedex were searched for English and Persian-language articles published between 1996 and 2016. Of 281 retrieved articles, 37 articles were finally included for writing this review article. RESULTS: Factors affecting sexual self-concept were categorized to biological, psychological and social factors. In the category of biological factors, age gender, marital status, race, disability and sexual transmitted infections are described. In the psychological category, the impact of body image, sexual abuse in childhood and mental health history are present. Lastly, in the social category, the roles of parents, peers and the media are discussed. CONCLUSION: As the development of sexual self concept is influenced by multiple events in individuals' lives, to promotion of sexual self-concept, an integrated implementation of health policies is recommended. PMID- 29038694 TI - Dietary habits, physical activity and diabetes perception among patients with type 2 diabetes mellitus in Tabuk City, Saudi Arabia. AB - BACKGROUND: Medical nutritional therapy is an important aspect of diabetes care, there is an increasing awareness of breakfast skipping, late dinner and meal contents on diabetes control. AIM: To assess dietary habits, physical activity and diabetes perception among patients with type 2 diabetes. METHODS: This case control study was conducted among patients with diabetes mellitus at the diabetes center in Tabuk City, Saudi Arabia during the period from March through June 2017. One hundred patients with type 2 diabetes and 150 control subjects were interviewed to collect demographic data regarding, breakfast skipping, late dinner intake, and fruit, vegetables, sweet food, and fast food consumption. Diabetic patients' perception of their disease was also assessed. (If diabetes is serious, it can be prevented and reversible). Data were analyzed by SPSS version 20 using Chi-square and independent-samples t-test. RESULTS: In the present study, body mass index (BMI) (p<0.001), fast food consumption (p<0.001), fruit consumption (p=0.004), and breakfast skipping (p<0.001) were higher among patients with diabetes compared to controls. No differences were found regarding the level of exercise, smoking, late dinner intake and diabetes perception. A significant statistical difference was observed between poor and accepted control regarding sweet food intake (p=0.046) and exercise (p=0.017). CONCLUSION: Patients with type 2 diabetes had higher BMI, and were more likely to skip breakfast, consume less fast food and more fruits than control subjects. More physical activity and less sweet food consumption was observed among patients with accepted glycemic control. PMID- 29038695 TI - Deep venous thrombosis among diabetic patients in King Abdulaziz University (KAU) Hospital, Jeddah, Kingdom of Saudi Arabia. AB - BACKGROUND: Deep venous thrombosis (DVT) is a major cause of morbidity and mortality among hospitalized patients worldwide and, simultaneously, the most preventable. Studies revealed several risk factors of deep venous thrombosis in hospitalized patients. OBJECTIVE: to identify frequency and factors associated with occurrence of deep venous thrombosis among diabetic patients referred to King Abdulaziz University (KAU) Hospital, Jeddah, Kingdom of Saudi Arabia. METHODS: This cross-sectional hospital-based study was conducted from June to December, 2016. All diabetic patients referred to the hospital departments and who were suspected to have deep venous thrombosis (DVT) and subjected to Doppler examination were included in the study. A questionnaire was designed to obtain data about deep venous thrombosis frequency among participants and factors associated with the development of deep venous thrombosis among them. Data was collected through face to face interviews with patients included in the study. We used SPSS version 16 for data analysis through descriptive statistics and Chi square test. RESULTS: DVT was detected in 14.7 % of the examined patients. There were significant and positive associations between age and DVT (X2=10.13, p=0.03) and between ischemic heart disease and DVT (X2=1.628, p=0.043) with the development of deep venous thrombosis among the studied patients. On the other hand, gender, other comorbidities, history of previous DVT, being bed ridden and using orthopedic casting were not significantly associated with the occurrence of deep venous thrombosis among the participants. CONCLUSION: DVT development rate among the participants was 14.7 %. Aging was significantly associated with DVT occurrence. Most of the studied factors and comorbidities had no significant role in DVT development among participants and only ischemic heart disease was significantly associated with DVT development. PMID- 29038696 TI - Exploring the perception of nursing students about consequences of reflection in clinical settings. AB - BACKGROUND: Reflection on practical experiences is a key element that enables students to recognize their own strengths and weaknesses and develop nursing skills. Whilst reflection may enhance students' learning in practice, there is little evidence about nursing students' perception of the consequences of reflection in clinical settings. OBJECTIVE: This study aimed to explore Iranian nursing students' perception regarding the consequences of reflection during clinical practices. METHODS: This qualitative study was conducted by a conventional content analysis approach in two nursing schools at Shiraz and Fasa Universities of Medical Sciences in Iran. Data were collected through in-depth semi-structured interviews during 2015-2016, from 20 students selected by purposive sampling. All the interviews were tape-recorded, transcribed verbatim, and analyzed by content analysis method. Rigor of this study was approved by member check and external audit. RESULTS: Two categories emerged from the data analysis, including movement toward professionalism and self-actualization of emotions. The former consisted of three subcategories of function modification, sharing experiences and generalizing experiences. The latter consisted of two subcategories of inner satisfaction and peace of mind. CONCLUSION: The results indicated that nursing students' reflection in clinical settings is effective in personal and professional levels. Reflection in a personal level led to positive emotions that increased the quality of care in patients. Accordingly, nursing educators need to create a nurturing climate as well as supporting reflective behaviors of nursing students. PMID- 29038697 TI - The pedagogical effect of a health education application for deaf and hard of hearing students in elementary schools. AB - BACKGROUND: Deaf or hard-of-hearing children experience difficulties in learning health principles. But technology has significantly improved their ability to learn. The challenge in e-learning is to design attractive applications while having an educational aspect. OBJECTIVE: The aims of this study were to determine the pedagogical effectiveness of a health education application for deaf and hard of hearing students in elementary schools, and to investigate the student's perceptions in different educational grades about the educational effectiveness of the text, graphics, video clips, and animation in the application. METHODS: The study design was quasi experimental and was conducted in Mashhad in 2016. Study population were deaf or hard-of-hearing students in elementary schools. The intervention included health application training to deaf and hard-of-hearing students in Mashhad. A questionnaire was used for data gathering. The pedagogical effectiveness was determined by measuring the modified Adapted Pedagogical Index. This index was created based on the characteristics of the application and study population. Statistical analysis was performed using the Kruskal-Wallis and Mann Whitney tests with Bonferroni adjustment by SPSS 22. RESULTS: Eighty-two students participated in the intervention. The value of modified Adapted Pedagogical Index was 0.669, indicating that the application was effective. The results of Kruskal Wallis H and Mann-Whitney U test showed significant differences in different educational grades. (p<0.008). CONCLUSION: Using information technology can improve the education of deaf and hard-of-hearing students. Modified Adapted Pedagogical Index can be used for evaluation of non-interactive applications for elementary school children who are deaf or hard of hearing. PMID- 29038699 TI - The correlation of social support with mental health: A meta-analysis. AB - BACKGROUND AND AIM: Social support is an important factor that can affect mental health. In recent decades, many studies have been done on the impact of social support on mental health. The purpose of the present study is to investigate the effect size of the relationship between social support and mental health in studies in Iran. METHODS: This meta-analysis was carried out in studies that were performed from 1996 through 2015. Databases included SID and Magiran, the comprehensive portal of human sciences, Noor specialized magazine databases, IRANDOC, Proquest, PubMed, Scopus, ERIC, Iranmedex and Google Scholar. The keywords used to search these websites included "mental health or general health," and "Iran" and "social support." In total, 64 studies had inclusion criteria meta-analysis. In order to collect data used from a meta-analysis worksheet that was made by the researcher and for data analysis software, CMA-2 was used. RESULTS: The mean of effect size of the 64 studies in the fixed-effect model and random-effect model was obtained respectively as 0.356 and 0.330, which indicated the moderate effect size of social support on mental health. The studies did not have publication bias, and enjoyed a heterogeneous effect size. The target population and social support questionnaire were moderator variables, but sex, sampling method, and mental health questionnaire were not moderator variables. CONCLUSION: Regarding relatively high effect size of the correlation between social support and mental health, it is necessary to predispose higher social support, especially for women, the elderly, patients, workers, and students. PMID- 29038698 TI - Association of hematological indices with prediabetes: A cross-sectional study. AB - BACKGROUND: Prediabetes is a condition that occurs when blood glucose levels are higher than normal, but not high enough to be classified as diabetes. Prediabetic people have an increased risk of developing type 2 diabetes and cardiovascular disease. Moreover Hyperglycemia has multiple effects on the hematological parameters. OBJECTIVE: To examine the association between hematological indices and anthropometric measurement, with prediabetes. METHODS: This cross-sectional study was conducted on 125 diabetics and 259 prediabetics in the 20-70 age range. They were selected by a convenience sampling method at the Taban Diabetes Center in 2015. An oral glucose tolerance test was performed for each participant who had never been diagnosed with diabetes. Participants were characterized as having prediabetes or diabetes according to American Diabetes Association criteria. The hematologic parameters were measured by using Sysmex-KX 21N analyzers. Data were analyzed by IBM-SPSS version 22 using independent-samples t-test, Mann-Whitney U test, and Pearson's correlation coefficient at p<0.05. RESULTS: There was significant difference in mean corpuscular hemoglobin concentration (MCVH) (33.81+/-0.92 g/dL vs. 34.06+/-1.05 g/dL) between prediabetes patients and diabetes. There was not a statistically significant difference in the prediabetics' hematological parameters, compared with the diabetics. In the prediabetic group, only the mean corpuscular hemoglobin concentration was found to be negatively correlated with diastolic blood pressure (p=0.013) and FBS (p=0.026). CONCLUSION: Hematological indices are important markers for the assessment of variations in size, number, and maturity of different blood cells. Hematological indices could be utile indicators of vascular complication and glycemic control in type 2 DM patients. Thus, they are important for the evaluation and early management of patients with per diabetes. PMID- 29038700 TI - The clinical evaluation of Vi-one chlorhexidine mouthwash on plaque-induced gingivitis: A double-blind randomized clinical trial. AB - BACKGROUND: Chlorhexidine (CHX) is the most effective antiseptic mouthwash to date. Essential oil such as thymol, have inhibitory and biocidal effects a range of bacteria. OBJECTIVE: To determine the effect of mouthwash containing CHX and thymol on plaque induced gingivitis. METHODS: This double-blind randomized clinical trial study was performed on 60 patients with plaque induced gingivitis who were randomly divided into two groups: Group I (CHX/thymol mouthwash-Vi-one) and Group II (CHX mouthwash-Behsa). Patients in each group underwent scaling and root planning and polishing, then were educated about BASS-Method brushing, and were recommended Oral-B toothbrushes and Pooneh toothpaste. The two groups were asked to rinse their mouths for 60 seconds twice a day, once in the morning and once at night, after brushing their teeth. Plaque index, gingival index, bleeding index and stain index were evaluated at baseline and 14 days later in Ramfjord teeth. Data analysis was conducted using SPSS version 21. Independent-samples t test and paired-samples t-test were used for data analysis. RESULTS: The results showed that plaque index and gingival index significantly reduced in two groups (p<0.001). However, group I was significantly more efficient than group II (p<0.001, p=0.021 respectively). Similar results were observed in terms of bleeding index with the difference that the two groups did not differ significantly from each other (p=0.879). Both groups significantly increased the stain index. No remarkable difference was also observed between the two groups (p=0.754). CONCLUSION: Based on the results of this study, we can conclude that the CHX/thymol mouthwash can be offered to patients with dental plaque-induced gingivitis, because it appears to be more effective in controlling dental plaque and gingivitis. TRIAL REGISTRATION: The trial was registered at the Iranian Registry of Clinical Trials (http://www.irct.ir) with the Irct ID: IRCT201602231760N45. FUNDING: This study was part of a thesis and research project (Grant No: 9440921) supported and funded by Babol University of Medical Sciences. The authors received no financial support from Behsa pharmaceutical company (Behsa mouthwash manufacturer) or Rojin cosmetic laboratory (Vi-one mouthwash manufacturer) for this study. PMID- 29038701 TI - Effect of periodic sildenafil dosage on intraocular pressure in patients with erectile dysfunction. AB - BACKGROUND AND AIM: Sildenafil is used to treat erectile dysfunction but it has association with some side effects. This study was conducted with the aim of investigating the effect of duration of taking sildenafil on intraocular pressure (IOP) in patients with erectile dysfunction. METHODS: The study population of this cross-sectional study were all males with erectile dysfunction referring to the urology clinic affiliated to Rafsanjan University of Medical Sciences (Kerman, Iran) over a one-year period (2015-2016) among whom 110 patients were included in the study. After medical examinations and required investigations, a weekly dose of 25-100mg sildenafil (50 mg per week on average) was prescribed for patients. IOP in these patients was measured by an ophthalmologist before, one month after and three months after taking medication respectively. Finally, data were analyzed by SPSS version 16 using repeated measures test. RESULTS: Mean IOP before taking medication as well as one month and three months after taking sildenafil was 14.88+/-1.3, 15+/-1.28 and 15+/-1.34 mmHg respectively. Analysis of results showed that the difference in IOP in various periods of measurement was significant (p<0.001). Mean IOP before taking sildenafil was significantly different from three months after taking it (p<0.001) and mean IOP one month after taking sildenafil was significantly different from three months after taking it (p=0.002). CONCLUSION: Results of this study indicated that taking sildenafil for three months increased IOP. Although these changes may not be clinically significant. PMID- 29038702 TI - The effect of Teucrium polium on the duration of menstrual bleeding: A triple blind placebo-controlled clinical trial. AB - BACKGROUND: Teucrium polium (T. polium; locally called 'kalpooreh') is a herbal medicine with therapeutic effects against diabetes and fungal infections, and it has analgesic and anti-inflammatory effects as well. It is also used traditionally as a remedy in treating headache, dysmenorrhea, convulsions and gastrointestinal disorders. Moreover, its hypoglycemic, hypolipidemic and antibacterial effects have been reported in recent studies. OBJECTIVE: To compare the effectiveness of T. polium on reduction of menstrual bleeding. METHODS: This triple-blind, clinical trial study was performed on 70 single female students between 20 and 30 years old, studying at Shahid Beheshti University of Medical Sciences. They were allocated randomly into two groups: In the T. polium group (n =35), they received 250 mg of T. polium powder compared to 35 subjects who received placebo. For the first 3 days of menstruation, subjects were asked to take the capsules they had been given, four times daily for two consecutive menstrual cycles. Duration of menstrual bleeding was determined by a Higham chart. Data were analyzed by IBM-SPSS version 20, using repeated measures and Mann-Whitney U test. RESULTS: There were no differences between the two groups at baseline. Comprising the Higham chart showed that: the participants in the T. polium group had lower significant duration and amount of menstrual bleeding in the 1st and the 2nd menstruation cycles after treatment (p<=0.05). CONCLUSION: Teucrium polium, when taken during the first 3 days of menstruation, led to a significantly greater decrease in duration of menstrual bleeding compared to placebo. TRAIL REGISTRATION: The trial was registered at the Thailand Registry of Clinical Trials with the ID TCTR20160818002. FUNDING: This research received financial support from Shahid Beheshti University of Medical Sciences. PMID- 29038703 TI - Mental challenges of nurses in the face of unlearning situations in hospitals: A qualitative study. AB - BACKGROUND: The unlearning process is complex and sometimes painful in nature. This process usually occurs in social interactions and is very dependent on social contexts and the work environment. OBJECTIVE: To explore the concerns and mental challenges in facing unlearning situations in nurses. METHODS: This qualitative study using content analysis was conducted in 2013-2015. Participants were 25 people, and research environment was hospitals in Mashhad and Gonabad. The method of data collection was unstructured interview, and sampling was continued until data saturation. First, the recorded interviews were transcribed and reviewed several times. Then open codes were extracted and after reviewing several times, were classified into subcategories based on semantic similarity. Finally, the similar subcategories were put into the main categories semantically. RESULTS: Data analysis led to the emergence of 1,180 initial codes and 8 categories and 3 themes. Our themes were discouraging/encouraging situation, double-edged sword colleagues, and organizational policies paradox, that the central theme of progressive and suppressor organizational climate paradox were derived from them. CONCLUSION: Exposure to unlearning situations is a complex process of which its adoption and implementation is difficult and challenging. This suggests that supporting nurses and attention to their mental concerns and providing favorable learning conditions is required. PMID- 29038704 TI - Salivary flow rate and xerostomia in patients with type I and II diabetes mellitus. AB - BACKGROUND: Diabetes mellitus is one of the most prevalent metabolic diseases, with complications such as decreased salivary flow rate and xerostomia. OBJECTIVE: This study aimed to determine the salivary flow rate and xerostomia in type I and II diabetic patients in comparison with healthy controls. METHODS: This case-control study was performed on diabetic patients of a private office in Babol, Iran, between May 2015 and October 2016. This study involved two study groups (type I and II diabetes, with 40 in each group) and two control groups (control I and II, with 35 in each group) which were age- and sex-matched with the related study groups. They were all selected through simple sampling. Unstimulated whole saliva was collected through Navazesh method and the salivary flow rate was measured (ml/min). Xerostomia was evaluated via Fox's test. Moreover, the patients' data were recorded including age, sex, disease duration, type of diabetes, fasting blood glucose (FBG) and HbA1C. The obtained data were statistically analyzed by using SPSS version 17. Independent-samples t-test, Chi square, Pearson correlation and multiple comparison post-hoc tests were employed as appropriated. p<0.05 was considered significant. RESULTS: The mean salivary flow rate in type I diabetics (0.35+/-0.11 ml/min) was lower than that in control I (0.50+/-0.07 ml/min) (p=0.01). The same difference was observed between type II diabetics (0.37+/-0.13 ml/min) and control II groups (0.47+/-0.11 ml/min) (p=0.01). No significant difference was observed in the salivary flow rate between type I and II diabetics (p=0.345). Furthermore, xerostomia was higher in type I (2.70+/-2.50, 1.17+/-1.60) and II (2.65+/-2.20-1.62+/-1.50) diabetics compared with the related control groups (p=0.01), (p=0.02). CONCLUSION: Type I, II diabetic patients revealed lower salivary flow rate and higher xerostomia compared with healthy controls. The salivary flow rate and xerostomia had inverse correlation. PMID- 29038705 TI - Exploration of reproductive healthcare needs among adult men regarding sexual transmitted diseases and HIV/AIDS. AB - INTRODUCTION: One of the most important public health issues is men's sexual and reproductive health. Men are the most important counterparts in the prevention of sexual transmitted diseases and HIV/AIDS. A low level of men's referral to utilize healthcare services and the stigmatization of reporting sexually transmitted diseases in society due to cultural issues calls for the designation of strategies for improving the men's healthcare conditions. In addition, it is required to assess men's healthcare needs with consideration of cultural contextual, social, and economic issues. The aim of this study was to explore the reproductive healthcare needs of men regarding sexual transmitted diseases and HIV/AIDS. METHODS: This was a qualitative study with 34 men and six women from the general population; health policymakers, reproductive health providers, and clergies were collected in two large cities of Iran, including Tehran and Mashhad, in 2015 through individual in-depth interviews. Participants were chosen through purposive sampling. In-depth individual interviews were conducted to collect data. All interviews were transcribed verbatim and using data analysis through conventional qualitative content analysis. Data were analyzed using conventional qualitative content analysis with MAXqda. RESULTS: The data analysis resulted in the development of four themes and 10 categories. The themes were "men's educational empowerment," "appropriate sociocultural background with advocacy," "organizing sexual needs based on sexual ethics, religious doctrine and women's empowerment," and "meeting men's preventive, caring and welfare needs." CONCLUSION: Because men's reproductive health is intertwined with public health, data collected regarding men's healthcare needs with the consideration of social and cultural factors can be used for designing strategies for reducing the incidence/prevalence rates of STDs and HIV/AIDS. PMID- 29038706 TI - Thoracic aortic involvement in cystic echinococcosis: A case report. AB - Cystic echinococcosis is a common parasitic disease in some areas and involves different organs with different presentations. Rural areas in our country are endemic with this disease. We present a case of echinococcal aortic involvement that was diagnosed incidentally by a routine chest radiogram as a mediastinal mass. Cystic echinococcosis was established as final diagnosis after magnetic resonance imaging (MRI) and ELISA studies. The patient was treated surgically through a thoracotomy and her aortic defect was repaired during the operation. She has been asymptomatic and complication free in physical examination and imaging study in follow up periods after two years. Awareness of various presentations of the disease is necessary for physicians who are occupied in endemic areas. It is rational to treat echinococcal cysts adjacent to the great vessels with the cooperation of a vascular surgeon. PMID- 29038707 TI - Prevalence of idiopathic hypercalciuria in children with urinary system related symptoms attending a pediatric hospital in Bandar Abbas in 2014. AB - BACKGROUND: Idiopathic hypercalciuria is a group of diseases which can be manifested with urinary symptoms. Its importance is due to high prevalence, recurrent infections, and stone formations which are often asymptomatic. OBJECTIVE: The objective of this study was to determine the prevalence of idiopathic hypercalciuria in children with urinary system related symptoms in Bandar Abbas in 2014. METHODS: This descriptive cross-sectional study was done in 2014 in a children's hospital in Bandar Abbas (southern Iran) on 321 children who were between 2 months to 14 years old. Random morning urine sample was obtained from all the patients, and calcium to creatinine ratio was assessed for all the patients for two times. Hypercalciuria is defined as urinary calcium excretion rate that is greater than 4 mg/kg per 24 hours in a child older than two years of age. Data was analyzed using IBM SPSS statistics 23.0 software and Chi-square and independent-samples t-test. RESULTS: Among the 321 children assessed, 153 (47.7%) had idiopathic hypercalciuria. The mean age of the children with idiopathic hypercalciuria was 55.20+/-43.71. Prevalence of idiopathic hypercalciuria was 48.3% in children with urinary tract infection, 54.9% and 53.6% in children with microscopic and macroscopic hematuria respectively, In children with dysuria, there were 52.1%, and 51.8% in children with frequency, 49.1% in children with kidney stone which was confirmed with sonography, 28.6% and 37.5% in children with nocturnal and daily urinary incontinency respectively. Results of this study showed no significant relationship between urinary system symptoms and idiopathic hypercalciuria (p>0.05). CONCLUSION: Hypercalciuria can be presented with different symptoms associated with urinary symptoms. Therefore, it is recommended to check the urinary calcium level in children with urinary symptoms with no definite etiology. PMID- 29038708 TI - Factors affecting the choice of type of delivery with breast feeding in Iranian mothers. AB - OBJECTIVE: This study assessed the factors affecting the choice of type of delivery with breast feeding in Iranian mothers. METHODS: This Cross section descriptive analytic study was performed using a random sampling technique, using data from 400 pregnant women who attended the maternity centers in Borazjan and Kazerun in Iran in 2014. A questionnaire covering demographic characteristics, mode of delivery and postpartum conditions was completed for each mother. Descriptive analysis and Chi square test were used along with SPSS 23 software to statistically analyze the data and p-value less than 0.05 was considered for statistical significance. RESULTS: In this study, the rate of normal delivery and cesarean operation are considered equal. In the main factors influencing the choice of delivery, mothers' education level (p=0.028) and pregnancy status (p=0.041) showed a significant relationship. Although no significant association between child nutrition with the type of delivery was found, duration of breastfeeding with the type of delivery showed significant association (p=0.046). CONCLUSION: Although cesarean delivery in many cases is life-saving for mother and fetus; in addition to medical indications, parents with higher education and pregnancy status are also important factors in increasing the rate of cesarean section compared to vaginal delivery. Babies of mothers with normal delivery had a longer time of breastfeeding. Further studies in Iran are necessary, regarding the reasons for high cesarean section and their outcomes. PMID- 29038709 TI - Psychological empowerment of NGO women in Iran: Designing a tool. AB - BACKGROUND: As the core of health promotion, proper assessment of empowerment is a base for planning for a process that increases people's control on their decisions, lifestyle, and effective activities for their health. OBJECTIVE: To design and develop a special tool to assess the empowerment of NGO women in Iran. METHODS: This successive exploratory study of combinational type was conducted in 2015 in two steps. In the first step, using comments of participants and the help of authentic texts related to this field, dimensions of psychological empowerment were developed. In the second step, psychometric properties of the scale or tool were determined using formal content, and structural validity and reliability were determined using internal consistency and stability via SPSS version 21. RESULTS: In the first step, the initial tool including 58 items was developed in the form of eight domains. In the second step, based on exploratory factor analysis (EFA), the number of items was reduced to 37. Considering the eigenvalues of higher than one, items were classified into eight factors. KMO index was 0.896 in this study. Reliability of the tool was 0.81 using Cronbach's alpha. This tool is able to predict 66.1% of total changes in psychological empowerment. CONCLUSION: A questionnaire with relevant reliability and validity, including eight domains of participation, motivation, cognitive thinking, critical thinking, self-efficacy, intention, perceived control and social support was developed to measure psychological empowerment of NGO women in Iran. PMID- 29038710 TI - Promoting physical activity in Iranian women: A qualitative study using social marketing. AB - BACKGROUND AND AIM: In social marketing, at the center of the program is consumer perception. The objective of this study was to explore the viewpoints of Iranian women for tailoring interventions so as to increase physical activity. METHODS: The social marketing model served as the framework of the study. Qualitative data were collected via six semi-structured focus group discussions (FGDs), in 2014 in Iran. Participants were 51 women, 20 to 60 years old, selected by purposive sampling, with a maximum diversity. Qualitative content analysis of the data was conducted by researchers. RESULTS: After data analysis and extracting initial codes, they were all categorized in four predefined categories of social marketing model (product, price, place and promotion) and related sub-categories. Most of the participants were inactive. Price was addressed by women as the dominant category of this study. The majority of participants emphasized the benefits of prevention of chronic diseases, fitness, staying young, and improving family relations. Most women preferred to do physical activity in a secure and enclosed female environment. And the majority of participants considered radio, television, face to face training, texting, and advertising billboards as promotional strategies. CONCLUSION: This study provides a unique insight into consumers' values and motivations that affect consumers' decisions to adopt physical activity, in Iran. It could also help researchers to design and implement intervention programs to increase physical activity. PMID- 29038711 TI - Study of the C677T and 1298AC polymorphic genotypes of MTHFR Gene in autism spectrum disorder. AB - BACKGROUND: Autism is currently known as "a behaviorally defined syndrome" manifested as impairment in social communication, repetitive routines and restricted interests. There is an increased risk of ASDs associated with common mutations affecting the folate/methylation cycle. AIM: The aim of this study was to identify C677T and 1298AC polymorphic genotypes of MTHFR gene among a sample of Egyptian children with autism and to make a phenotype-genotype correlation for the autistic patients. METHODS: This case-control study was carried out from 2013 through 2015. The study included 31 children with autism and 39 children in a normal control group, the mean age of patients and control was comparable (4.5 years+/- 2) with males predominant in both groups. We used DSM-V-TR criteria, Stanford-Binet intelligence scale V and childhood autism rating scale (CARS) for assessments. Genotyping for MTHFR gene polymorphic loci C677T and 1298AC was performed on amplified DNA by PCR with subsequent reverse hybridization and restriction fragment length polymorphisms analysis. Data were analyzed by SPSS version 11, using Chi-Square, independent-samples t-test, and ANOVA. RESULTS: There was significant relationship between low birth weight and occurrence of autism (p<0.01), and between delayed motor and social milestones in cases of autism compared to controls (p<0.01). Heterozygosity for A1298C polymorphism was highest among patients (41.9%) followed by 35.5% mutant genotype CC and 22.6% normal AA (wild) type and Allele C was detected in patients more than in control (56.45% vs. 11.54%) (p<0.001). For C667T polymorphism, heterozygosity was also highest among patients (48.4%) followed by wild type genotypes C677 (38.7%) and 12.9% for mutant genotypes 667T. Allele T appeared more in patients than control (31.10 %vs. 5.13%) (p<0.00). Heterozygosity for CT and A-C genotypes were detected equally (46.2%) among patients with severe autism (according to CARS). CONCLUSION: There is a significant association between severity and occurrence of autism with MTHFR gene polymorphisms C677T and A1298C. Further studies are needed on a larger scale to explore other genes polymorphisms that may be associated with autism, to correlate the genetic basis of autism. PMID- 29038712 TI - Prevalence of diabetes and its relation with age and sex in Turaif city, northern Saudi Arabia in 2016-2017. AB - BACKGROUND: The prevalence of diabetes in Saudi Arabia has increased dramatically during the last decades. This increase has been attributed to significant changes in cultural and socio-economic factors. OBJECTIVE: The aim of this study was to determine prevalence of diabetes and its relation with age and sex in Turaif city, northern Saudi Arabia. METHODS: This was a cross-sectional study carried out during the academic year 2016-2017 over a period of 6 months (October 01, 2016 to March 30, 2017). A total of 1,287 Saudi national individuals of both sexes, aged from 1 year to more than 65 years were included in the study. Data were collected by a predesigned questionnaire covering medical history of diabetes, age and sex. RESULTS: Mean age (+/- SD) was 24.29 (+/-13.96) years with the minimum age at 1 year and the maximum age at 93 years, male to female ratio was 42.5% to 57.5%. The total prevalence of DM among the studied population was 5.8% and pre-diabetic cases were 6.8%. There were significant relationships between age/sex, and the occurrence of diabetes among the studied population (p<0.05). CONCLUSIONS: The total prevalence rate of DM among the studied population of Turaif city, northern Saudi Arabia was 5.8% and pre-diabetic cases were 6.8%. Awareness campaigns and prevention programs about diabetes should be instituted and the existing ones must be strengthened. Adequate commitment from the Ministry of Health is also advocated. PMID- 29038713 TI - Coexistence of lupus nephritis and sickle cell trait, an electron microscopic assessment of renal glomerular damage: Case report of a rare association. AB - Because of similarities of the musculoskeletal, central nervous system, and renal manifestations in both diseases, diagnosing systemic lupus erythematosus (SLE) in sickle cell disease (SCD) patients can be difficult to establish. Although Sickle Cell Trait (SCT) is still considered a benign form of SCD, its impact on kidney injury and other renal manifestations is well recognized in the literature. In this case report, we look at the challenges that develop when diagnosing patients with a concurrence of both diseases and the importance of early recognition and treatment of lupus nephritis in SCT patients. We present a case of a male patient with sickle-cell trait who was admitted to our hospital complaining of low grade fever and pancytopenia for investigations proven to be SLE. A renal biopsy on electron microscopy assessment with different staining modalities as well as immune fluorescence revealed mixed pathological changes. We emphasize the importance in considering the presence of a coexisting autoimmune disease in a patient with sickle hemoglobinopathies even in the milder forms like SCT which may display an atypical and/or multisystem presentation. Also, the impact of the two conditions on the renal pathological changes should be expected to be more damaging even at early onset of SLE flare, and hence, an urge to start with more intensified immunosuppressive medications. PMID- 29038714 TI - Ear diseases and factors associated with ear infections among the elderly attending hospital in Arar city, Northern Saudi Arabia. AB - BACKGROUND: Changes in the anatomical structures and function of the ear can result in ear diseases, and may affect all age groups including the elderly as a result of aging. OBJECTIVE: To identify the frequency and types of ear diseases among the elderly attending Abdullah bin Abdul-Aziz bin Musa'ed Al Saud hospital, Arar city, in the Northern Province of KSA, and factors associated with ear infections among them. METHODS: This cross-sectional hospital based study conducted from December 2016 through May 2017 included 138 elderly participants. A questionnaire was designed for collecting data about socio-demographic variables, the frequency and types of ear diseases among participants, and factors associated with ear infections among them. Data were analyzed by SPSS version 15, using descriptive statistics and Chi-Square test. RESULTS: Findings showed that 49.3% of the participants were suffering from ear disease. Hearing impairment was detected in 37% of the elderly people studied. In addition, 9.4% and 2.9 % of the participants suffered from otitis media and otitis interna, respectively. None of the studied factors had a significant effect on the development and pattern of ear infection among the studied population. CONCLUSION: Ear diseases were found among the participants with variable rates. More than one third of respondents suffered from hearing impairment. Ear infections were detected in lower rates. Although these problems are not life threating, they negatively impact the quality of life, and measures are needed for prevention and control. PMID- 29038715 TI - One-stage surgical excision of a huge bilateral multiple osteochondroma of the hip: a case report. AB - Osteochondroma or hereditary multiple exostoses is the most common benign bone tumor and is usually found in young patients. Osteochondromata of the proximal femur or hip have been reported in 30% to 90% of patients with hereditary multiple exostoses. This article presents a 25-year-old-male referred to our orthopedic clinic with a complaint of pain in both groins for the last four years which has deteriorated in the past 6 months by limitation of range of motion. Radiographic findings were consistent with huge hip osteochondroma and a histopathological report confirmed the diagnosis. This was a case of a huge bilateral osteochondroma of the hip originating from the posterior of the hips to the neck of the femur and hip joints and part of proximal of femur, that underwent one-stage surgical excision of the tumor with posterior approach and tumor resection. As we know, this case of bilateral huge hip osteochondromas has rarely been presented previously by someone who has undergone one-stage surgery treatment of a tumor this size. Bilateral hip osteochondroma is a rare condition and we showed that one-stage excision can be performed successfully. PMID- 29038716 TI - Relationship between a network's indicators and basic factors with high-risk behavior of injection among injecting drug users (IDU) via the multiple membership multilevel model. AB - BACKGROUND: Among various methods and types of drug abuse, injection receives a great deal of importance because of its related dangerous behavior and health consequences. It seemed that some of the network's indicators affect dangerous behavior of injection. OBJECTIVE: To determine the relationship between a network's indicators and basic factors with high-risk behavior of injection among injecting drug users (IDU) via the multiple memberships multilevel model. METHODS: In this cross-sectional study, the data related to 147 IDUs in Kerman province, who were interviewed from October 2013 through March 2014, were used, and these addicts were chosen for interview from specific resorts used for common injection. In this study, for analyzing data, multiple membership multilevel model and MLwiN 2.02 software were used. RESULTS: In this study, the mean age of people, who were mostly men, was 37.2+/-9.02. Based on the result, it becomes obvious that variables of in-degree with OR=1.49 (p=0.006) and the whole number of people related to the person with OR=1.18 (p=0.003) influences the high-risk behavior of injection. Also, none of the demographic variables influenced the high-risk behavior of injection. CONCLUSION: Totally based on the results of this study, one can find a suitable method in the social network of IDUs in order to create essential strategies, reducing the risk throughout the country. In addition, in minimum time with fewer expenses, aggravation of dangerous behavior especially high-risk behavior of injection can be prevented. PMID- 29038717 TI - Acceptability of picture archiving and communication system (PACS) among hospital healthcare personnel based on a unified theory of acceptance and use of technology. AB - BACKGROUND AND AIM: The picture archiving and communication system (PACS) is a healthcare system technology which manages medical images and integrates equipment through a network. There are some theories about the use and acceptance of technology by people to describe the behavior and attitudes of end users towards information technologies. We investigated the influential factors on users' acceptance of PACS in the military hospitals of Tehran. METHODS: In this applied analytical and cross-sectional study, 151 healthcare employees of military hospitals who had experience in using the PACS system were investigated. Participants were selected by census. The following variables were considered: performance expectancy, efforts expectancy, social influence, facilitating conditions and behavioral intention. Data were gathered using a questionnaire. Its validity and reliability were approved by a panel of experts and was piloted with 30 hospital healthcare staff (Cronbach's alpha =0.91). Spearman correlation coefficient and multiple linear regression analysis were used in analyzing the data. RESULTS: Expected performance, efforts expectancy, social impact and facilitating conditions had a significant relationship with behavioral intention. The multiple regression analysis indicated that only performance expectancy can predict the user's behavioral intentions to use PACS technology. CONCLUSION: Performance and effort expectancies are quite influential in accepting the use of PACS in hospitals. All healthcare personnel should become aware that using such technology is necessary in a hospital. Knowing the influencing factors that affect the acceptance of using new technology can help in improving its use, especially in a healthcare system. This can improve the offered healthcare services' quality. PMID- 29038718 TI - Effects of a theory-driven educational package and social support on durability of cigarette smoking cessation behavior: A community-based program. AB - BACKGROUND: According to a World Health Organization (WHO) report, the prevalence of smoking in Iranian individuals aged 15-64 is up to 12%. OBJECTIVE: The aim of the current study was to determine the durability of smoking cessation behavior based on a trans-theoretical model. METHODS: This educational experimental study was conducted on smokers in Khomein City, Iran, in 2015. Sampling was done through a public announcement and then a random allocation of participants into two study group (50 persons) and control group (60 persons). Tools to gather data were as follows: an individual characteristics form and DiClemente's stages of change, Velicer's self-efficacy, Prochaska's processes of change, Velicer's decisional balance, and Fagerstrom's nicotine dependency questionnaires. The study group received five sessions of 45-minute individual counseling each and were followed-up three and six months later. Data were analyzed by SPSS version 16, using paired-samples t-test, independent-samples t-test, and chi-square. RESULTS: Within six months of follow-up, 20 persons (40%) of the intervention group reached the maintenance stage of smoking cessation, while no one from controls managed to do that. Except for the perceived barriers and benefits of smoking cessation, all other constructs of the trans-theoretical model (cognitive and behavioral processes and smoking temptation) showed significant changes among the intervention group during six months' follow-up (p<0.05). There was no significant relationship between variables of having smoker friends, occupation, marital status, education status, and success or failure in cigarette smoking cessation (p>0.05). CONCLUSION: According to our study, selection of cigarette smokers who are willing to quit, delivery of individual counseling according to specific personal characteristics, and also provision of free nicotine replacement therapies should be taken into account in cigarette smoking cessation programs. PMID- 29038719 TI - Phenomenological needs assessment of parents of children with cochlear implants. AB - BACKGROUND: The use of cochlear implants has been a remarkable success in reducing disabilities in those with impaired hearing, which have made a significant change in the patients' quality of life. Only by relying on cochlear implants, disabilities cannot be eliminated in the hearing impaired, and, alongside this intervention, rehabilitation practices such as through family and community support are necessary. AIM: To explain the needs of parents of children with cochlear implants to increase the quality of rehabilitation services and family-based interventions. METHODS: A descriptive phenomenology study was performed with the participation of 16 people, including eight mothers, three fathers, and five experts involved with the rehabilitation of children aged 2-7 years with cochlear implants. The research setting was centers with speech therapy service providers for hearing-impaired children in the city of Shiraz (Iran) in 2015. Information was gathered through in-depth interviews with participants and analyzed by using Colaizzi's nine-step analysis method and MAXQDA (Ver10) applications. RESULTS: The mean age of participants was 34 years, and the average age of diagnosis of hearing problems in children was 12 months. The obtained data from the analysis of interviews about the needs of parents of children with cochlear implants were categorized into 19 sub-contents and five contents, as follows: the need for access to health care services; psychological needs; mood-related needs of a child; educational needs and financial requirements. CONCLUSION: Parents of children with cochlear implants have numerous needs, and they encounter problems based on their situation and experiences. The results indicate the necessity of close cooperation among different professionals such as an audiologist, pediatrician, psychologist, and speech therapist for the program's success. PMID- 29038720 TI - Epidemiology of senile prostatic enlargement among elderly men in Arar, Kingdom of Saudi Arabia. AB - BACKGROUND AND AIM: Senile prostatic enlargement due to benign prostatic hyperplasia (BPH) is a common problem among older men, and is responsible for considerable disability. This study was conducted to determine the prevalence and determinants of the clinically diagnosed prostatic enlargement among elderly men in Arar, Northern Saudi Arabia. METHODS: This cross-sectional study was carried out on all consented elderly males attending the outpatient clinic of the urology department of Arar Central Hospital from February 2017 to July 30, 2017. Each participant underwent a general examination and digital per rectal to detect general chronic diseases, obesity and prostatic enlargement. Data were analyzed by SPSS version 16, using descriptive statistics and Chi-squared test. RESULTS: Among 81 elderly male participants in the study, 19.8% had clinically diagnosed senile prostatic enlargement (SPE) and 3.7% had prostatic tumors. There was significant relation between SPE and age as 6.2% of cases were 60-69 years, 43.8% were 70-79 years and 44.0% were 80 years or more (p<0.05). There was also significant relation between SPE and obesity as 62.5% of cases were obese and 37.5% were non obese (p<0.05). There was no significant relation with marital status, smoking or diabetes mellitus (p<0.05). CONCLUSION: Senile prostatic enlargement is one of the significant important issues in public health in Arar city, Northern Saudi Arabia. The prevalence of this condition reaches 19.3%, thereby placing even greater burden on the quality of life of the elderly and on the health system in the region. PMID- 29038721 TI - Gender differences in substance use patterns and disorders among an Iranian patient sample receiving methadone maintenance treatment. AB - BACKGROUND: The current prevalence rate of substance abuse and dependence, represents an increasing trend of substance abuse and dependence among women, and the results of epidemiology studies indicate that substance use patterns are different between men and women. This study aimed to determine gender differences in substance use patterns and disorders among the patients undergoing methadone maintenance treatment. METHODS: This cross-sectional study was conducted throughout a specified time bracket ranging from September 2012 through March 2013 in Methadone Maintenance Treatment (MMT) clinics of Mashhad, Iran. In this study, 140 men and 120 women were selected from among the patients referring to MMT clinics in Mashhad through purposeful sampling method. The sample units were assessed using a demographic information questionnaire and Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders (SCID). The data were then analyzed by Chi Square test, Mann-Whitney U test, and Independent samples t-test. SPSS software 16 was used to conduct statistical analyses with P values less than 0.05 regarded as significant. RESULTS: The results showed that men and women are significantly different from each other in terms of marital status (p=0.001), education (p=0.001), income (p=0.001), history of injection (p=0.002), imprisonment (p=0.001), and substance use abstention (p=0.023). It was also revealed that methamphetamine dependence (p=0.017) and simultaneous use of multiple substances (p=0.001) in the past 12 months were diagnosed, to a larger extent, in male participants than those in female participants. In addition, the diagnoses of nicotine dependence (p=0.001), cannabis abuse (p=0.001), heroin dependence (p=0.001), and substance abuse and alcohol dependence (p=0.001) during a lifetime were more frequently existing in males than those in females. CONCLUSION: There are gender differences in substance use patterns and disorders that appear to be caused by the degree of access to substances and the impacts of cultural and social aspects on men and women in Iran. PMID- 29038722 TI - A comparison of body image concern in candidates for rhinoplasty and therapeutic surgery. AB - BACKGROUND: Body dysmorphic disorder among patients referring for cosmetic surgeries is a disorder that if not diagnosed by a physician, can cause irreparable damage to the doctor and the patient. OBJECTIVE: The aim of this study was to compare body image concern in candidates for rhinoplasty and therapeutic surgery. METHODS: This was a cross-sectional study conducted on 212 patients referring to Loghman Hospital of Tehran for rhinoplasty and therapeutic surgery during the period from 2014 through 2016. For each person in a cosmetic surgery group, a person of the same sex and age in a therapeutic surgery group was matched, and the study was conducted on 60 subjects in the rhinoplasty group and 62 patients in the therapeutic surgery group. Then, the Body Image Concern Inventory and demographic data were filled by all patients and the level of body image concern in both groups was compared. Statistical analysis was conducted using SPSS 16, Chi-square test as well as paired-samples t-test. P-value of less than 0.05 was considered statistically significant. RESULTS: In this study, 122 patients (49 males and 73 females) with mean age of 27.1+/-7.3 between 18 and 55 years of age were investigated. Sixty subjects were candidates for rhinoplasty and 62 subjects for therapeutic surgery. Candidates for rhinoplasty were mostly male (60%) and single (63.3%). Results of the t-test demonstrated that body image concern and body dysmorphic disorder were higher in the rhinoplasty group compared to the therapeutic group (p<0.05). CONCLUSION: Results of this study showed that the frequency of rhinoplasty candidates is higher in single male subjects. In addition, body image concern was higher in rhinoplasty candidates compared to candidates for other surgeries. Visiting and correct interviewing of people who referred for rhinoplasty is very important to measure their level of body image concern to diagnose any disorders available and to consider required treatments. PMID- 29038723 TI - Survey of awareness of diabetes mellitus among the Arar population, Northern Border Region of Saudi Arabia. AB - BACKGROUND: Diabetes Mellitus (DM) is one of the most widely prevalent diseases in Saudi Arabia. Health education is considered an essential component to improve knowledge and change behavior. People affected by diabetes often have inadequate knowledge about the nature of diabetes, its risk factors and associated complication. OBJECTIVES: The aim of this study was to assess the awareness of the Arar population with various aspects of diabetes mellitus. METHODS: A cross sectional study was carried out in Arar city, the capital of the Northern Province of Kingdom of Saudi Arabia (KSA). The study was carried out on Saudi nationals from different age groups that were selected by systematic random sampling. Data was collected by means of personal interview with the participants using a pre-designed questionnaire which was administered by the medical students for each diabetic patient. Data were analyzed by SPSS version 15, using descriptive statistics and Chi-square test. RESULTS: A total of 702 participants were interviewed, among them 201 (28.6%) males and 501 (71.4%) females, and most of them (77.8%) had high educational level, 10.4% were diabetics, 78.9% did not have regular checkup visits to the doctor and 58.5% did not perform any regular exercises, including walking, 60% thought that DM was due to partial or total decrease in insulin secretion and 12.4% thought that it was due to excess sweet eating. Additionally, 48.7% of the respondents thought that lack of exercise and obesity were the major risk factors of DM, 33.2% thought that it was a genetic disease. The majority (86.3) of the participants believed that the treatment of DM was a combination of healthy diet, exercise and medication and more than half (63.1%) said that weight loss and modification of life style were the most important preventive measures of DM. Regarding participants' knowledge about DM complications, 24.5% knew about retinopathy and loss of vision, 8.3% knew about retinopathy, loss of vision, low sensation and numbness in extremities, 24.9% said that symptoms of DM were thirst and frequent urination. CONCLUSION: This study recommends that health policy makers conduct more effective health education sessions to increase knowledge of diabetic patients and their caregivers about diabetes and the importance of compliance with its treatment. PMID- 29038724 TI - Idiopathic granulomatous mastitis: dilemmas in diagnosis and treatment. AB - BACKGROUND: Idiopathic granulomatous mastitis (IGM) is a benign rare inflammatory disease of the breast. Due to its uncommon etiology, diagnosis and treatment is still unknown. Selection of a standard method for diagnosing idiopathic granulomatous mastitis is sophisticated. In view of non-definitive clinical and imaging finding, histopathology is the cornerstone of definitive diagnosis. OBJECTIVE: To determine and help solve the dilemma of treatment and diagnosis of idiopathic granulomatous mastitis. METHODS: This historical cohort study was conducted on 48 patients who referred to the general surgery clinic of Imam Khomeini Hospital of Urmia, were diagnosed with IGM and were histopathologically selected by census using the registry system, in Urmia city, Iran, during 2010 2015 so that medical reports, ultrasonography (US) and mammography (MMG) findings, follow-up information and recurrence rate were obtained from records. The data were analyzed using SPSS software version 18 and descriptive statistics were used. RESULTS: According to records, 68.75% of patients (n=33) had palpable mass, 45.83% of patients (n=22) had breast pain and swelling, erythema and 20.83% of patients (n=10) had purulent drainage. Of the 48 patients 12 (25%) had mammography, which revealed the following findings: mass with irregular border in 6 patients, skin thickness in 2 cases (4.16%), and parenchymal asymmetry in 4 cases (8.33%). Minimum follow-up was 24 (range 24-56) months. CONCLUSIONS: According to our findings, histopathology of the disease is fundamental for correct diagnosis. Steroid therapy as a therapeutic method such as prednisolone was an effective and applicable choice in the treatment of idiopathic granulomatous mastitis by decreasing in inflammation. PMID- 29038725 TI - Caregiving burden of children with chronic diseases. AB - BACKGROUND: The care demands of children with chronic diseases can affect caregivers' health by imposing caregiving burden to them. The health status of caregivers plays a vital role in the quality of care provided to such children and in their quality of life. OBJECTIVE: To determine caregiving burden in caregivers and to identify relevant influential factors. METHODS: In this cross sectional study, a total number of 249 caregivers of children with chronic diseases who referred to hospitalization and ambulatory departments of Bandar Abbas, Iran in 2016 were selected using convenience sampling method. The main caregivers who were older than 18 years and provided care to a sick child for at least three months consecutively were included. Caregiving burden was measured using the Caregiver Burden Scale. Data was analyzed SPSS 16 using descriptive statistics, Spearman's correlation coefficient and Mann-Whitney U test. RESULTS: Mean score of caregiving burden was 1.98 which was close to moderate level. The highest caregiving burden was observed in general strain dimension (2.35), and cerebral palsy imposed the maximum burden to caregivers (2.24). Correlation coefficient revealed that perceived caregiving burden was in connection with children's and caregivers' age, duration of disease and caregiving, child's level of disability, number of family members and income level (p<0.05). Mann-Whitney U test showed that female caregivers, villagers, and caregivers dealing with more than one patient experienced higher burden (p<0.05). CONCLUSION: Different variables can increase caregiving burden. Therefore, planning for holistic and family-centered interventions to decrease caregiving burden is necessary for health care providers. PMID- 29038726 TI - Knowledge, attitudes and practices toward prevention of hepatitis B virus infection among medical students at Northern Border University, Arar, Kingdom of Saudi Arabia. AB - BACKGROUND AND AIM: Health care workers' risk of occupational exposure to HBV is a chief concern, particularly with young students in the health profession. This study was carried out to assess the knowledge regarding symptoms, risk factors and prevention of hepatitis B virus infection among medical students. METHODS: A cross-sectional study was carried out from November 01, 2016 to May 30, 2017 on medical students at the Northern Border University (Arar, Kingdom of Saudi Arabia). Data were collected from 200 students from all academic years using pre designed questionnaire which included questions designed to fulfill the study objectives. RESULTS: Regarding students' knowledge about hepatitis B infection, 81% of them knew that carriers could transmit infection, 89.5% of them knew that it could not be spread by casual contact, 80% by contact with open wound, 96.5% by contaminated blood and body fluids, 92.5% by unsterilized syringe, needle and surgical instruments and 79.5% by unsafe sex. In total, 86.5% of students knew that a vaccine could prevent HBV infection, 95% knew it had been laboratory tested, 64% knew HBV had post exposure prophylaxis and only 55% knew that it could be cured. In all, 75.5% of students knew that HBV caused liver cancer. Regarding attitude, 23% of students said they had no concern of being infected with HBV, 86.5% agreed that HBV vaccine was safe and effective and 90% believed that following infection, control guidelines would protect them from being infected by HBV at work. Regarding practice, only 56.5% of students had screened for HBV infection 22% had had a needle prick injury but 68% would report that injury. Furthermore, 69.5% have received HBV vaccine but only 38% of them had received 3 doses. CONCLUSION: The students' knowledge of the hepatitis B virus was found to be good. We recommend improving knowledge, attitude and practice of the public as well as students, through health education campaigns and settings. PMID- 29038727 TI - Left ventricular torsional parameters before and after atrial fibrillation ablation: a velocity vector imaging study. AB - BACKGROUND AND AIM: Effects of atrial fibrillation (AF) and its ablative treatment on LV torsion have not yet been fully investigated. This study aimed to examine whether AF patterns of LV contraction and its ablative correction can exert a significant impact on LV torsion by velocity vector imaging (VVI). METHODS: This case-control study conducted in Rajaie Cardiovascular, Medical and Research Center between October 2012 and June 2013. Study participants were 30 consecutive patients with symptomatic paroxysmal AF who met the inclusion criteria. The control group included 24 healthy participants with no history of cardiovascular disease. All individuals were in sinus rhythm at the time of echocardiography before and after the ablation procedure. Two-dimensional (2D) and Doppler echocardiography on a commercially available ultrasound system was performed for all the patients. Scanning was done by a wide-band ultrasound transducer with the frequency range between 2.5-3.5 MHz. The two short-axis views at basal and apical levels were subsequently processed off-line by VVI XStrain software. In order for data analysis, SPSS 16 utilized using paired and independent t-test. p-value <=0.05 was considered significant. RESULTS: LV torsion ( degrees /cm) mean +/- SD was significantly lower in paroxysmal AF patients before ablation (0.8+/-0.3) than the control group (1.5+/-0.4) (p<0.001) and increased significantly after ablation (1.1+/-0.5) compared with before ablation (p=0.004), but still significantly lower than the control group (p=0.003). LV Twist, twist rate and untwist rate mean +/- SD were significantly lower in paroxysmal AF patients before ablation than the control group and increased significantly after ablation compared with before ablation, but still significantly lower than the control group. CONCLUSION: Subclinical LV dysfunction may be detected in paroxysmal AF rhythm by measuring torsional parameters through VVI which improves after AF ablation. PMID- 29026521 TI - A novel data storage logic in the cloud. AB - Databases which store and manage long-term scientific information related to life science are used to store huge amount of quantitative attributes. Introduction of a new entity attribute requires modification of the existing data tables and the programs that use these data tables. The solution is increasing the virtual data tables while the number of screens remains the same. The main objective of the present study was to introduce a logic called Joker Tao (JT) which provides universal data storage for cloud-based databases. It means all types of input data can be interpreted as an entity and attribute at the same time, in the same data table. PMID- 27990268 TI - Monitoring the compliance of the academic enterprise with the Fair Labor Standards Act. AB - Background: On December 1, 2016, the Fair Labor Standards Act (FLSA) was due to be updated by the U.S. Department of Labor. Key changes included an increase in the salary threshold for exemption from overtime for working more than 40 hours per week, and indexing the salary level so that it is updated automatically every 3 years. This was predicted to have a profound effect on academe as postdoctoral researchers were mostly paid at a salary below the new threshold. On November 22, 2016, an injunction was granted nationwide, delaying implementation of the updates, which were finally struck down entirely on August 31, 2017. Here we review the key changes to the FLSA, how they came about, and how the postdoctoral population was affected. Methods: We describe recent data collection efforts to uncover what institutions with postdocs were doing to comply with the FLSA. Results: Our data showed that 57% of institutions checked (containing 41% of the estimated postdoctoral workforce in science, engineering and health) had not decided or had no public decision available one month prior to implementation, and only 35.5% of institutions were planning to raise salaries to the new minimum. After the injunction, a number of institutions and the NIH continued with their plans to raise salaries. Overall, despite the removal of a federal mandate, approximately 60% of postdocs are at institutions whose policy is to raise salaries. Conclusions: Our data show uncertainty in postdoctoral salaries in the U.S. prior to implementation of the FLSA ruling. In addition, while some institutions did suspend plans to raise postdoctoral salaries after the injunction, many continued with the raise. The implementation of postdoctoral salary raises may be inconsistent, however, as the legal minimum is still $23,660. PMID- 28413619 TI - Picopore: A tool for reducing the storage size of Oxford Nanopore Technologies datasets without loss of functionality. AB - Oxford Nanopore Technologies' (ONT's) MinION and PromethION long-read sequencing technologies are emerging as genuine alternatives to established Next-Generation Sequencing technologies. A combination of the highly redundant file format and a rapid increase in data generation have created a significant problem both for immediate data storage on MinION-capable laptops, and for long-term storage on lab data servers. We developed Picopore, a software suite offering three methods of compression. Picopore's lossless and deep lossless methods provide a 25% and 44% average reduction in size, respectively, without removing any data from the files. Picopore's raw method provides an 88% average reduction in size, while retaining biologically relevant data for the end-user. All methods have the capacity to run in real-time in parallel to a sequencing run, reducing demand for both immediate and long-term storage space. PMID- 28979765 TI - MicroRNAs in the development and neoplasia of the mammary gland. AB - Study on the role of microRNAs (miRs) as regulators of gene expression through posttranscriptional gene silencing is currently gaining much interest,due to their wide involvement in different physiological processes. Understanding mammary gland development, lactation, and neoplasia in relation to miRs is essential. miR expression profiling of the mammary gland from different species in various developmental stages shows their role as critical regulators of development. miRs such as miR-126, miR-150, and miR-145 have been shown to be involved in lipid metabolism during lactation. In addition, lactogenic hormones influence miR expression as evidenced by overexpression of miR-148a in cow mammary epithelial cells, leading to enhanced lactation. Similarly, the miR-29 family modulates lactation-related gene expression by regulating DNA methylation of their promoters. Besides their role in development, lactation and involution, miRs are responsible for breast cancer development. Perturbed estrogen (E2) signaling is one of the major causes of breast cancer. Increased E2 levels cause altered expression of ERalpha, and ERalpha-miR cross-talk promotes tumour progression. miRs, such as miR-206, miR-34a, miR-17-5p, and miR-125 a/b are found to be tumour suppressors; whereas miR-21, miR-10B, and miR-155 are oncogenes. Oncogenic miRs like miR-21, miR-221, and miR-210 are overexpressed in triple negative breast cancer cases which can be diagnostic biomarker for this subtype of cancer. This review focuses on the recent findings concerning the role of miRs in developmental stages of the mammary gland (mainly lactation and involution stages) and their involvement in breast cancer progression. Further studies in this area will help us to understand the molecular details of mammary gland biology, as well as miRs that could be therapeutic targets of breast cancer. PMID- 29038732 TI - Progressive sampling-based Bayesian optimization for efficient and automatic machine learning model selection. AB - PURPOSE: Machine learning is broadly used for clinical data analysis. Before training a model, a machine learning algorithm must be selected. Also, the values of one or more model parameters termed hyper-parameters must be set. Selecting algorithms and hyper-parameter values requires advanced machine learning knowledge and many labor-intensive manual iterations. To lower the bar to machine learning, miscellaneous automatic selection methods for algorithms and/or hyper parameter values have been proposed. Existing automatic selection methods are inefficient on large data sets. This poses a challenge for using machine learning in the clinical big data era. METHODS: To address the challenge, this paper presents progressive sampling-based Bayesian optimization, an efficient and automatic selection method for both algorithms and hyper-parameter values. RESULTS: We report an implementation of the method. We show that compared to a state of the art automatic selection method, our method can significantly reduce search time, classification error rate, and standard deviation of error rate due to randomization. CONCLUSIONS: This is major progress towards enabling fast turnaround in identifying high-quality solutions required by many machine learning-based clinical data analysis tasks. PMID- 29038733 TI - Mining comorbidity patterns using retrospective analysis of big collection of outpatient records. AB - BACKGROUND: Studying comorbidities of disorders is important for detection and prevention. For discovering frequent patterns of diseases we can use retrospective analysis of population data, by filtering events with common properties and similar significance. Most frequent pattern mining methods do not consider contextual information about extracted patterns. Further data mining developments might enable more efficient applications in specific tasks like comorbidities identification. METHODS: We propose a cascade data mining approach for frequent pattern mining enriched with context information, including a new algorithm MIxCO for maximal frequent patterns mining. Text mining tools extract entities from free text and deliver additional context attributes beyond the structured information about the patients. RESULTS: The proposed approach was tested using pseudonymised reimbursement requests (outpatient records) submitted to the Bulgarian National Health Insurance Fund in 2010-2016 for more than 5 million citizens yearly. Experiments were run on 3 data collections. Some known comorbidities of Schizophrenia, Hyperprolactinemia and Diabetes Mellitus Type 2 are confirmed; novel hypotheses about stable comorbidities are generated. The evaluation shows that MIxCO is efficient for big dense datasets. CONCLUSION: Explicating maximal frequent itemsets enables to build hypotheses concerning the relationships between the exogeneous and endogeneous factors triggering the formation of these sets. MixCO will help to identify risk groups of patients with a predisposition to develop socially-significant disorders like diabetes. This will turn static archives like the Diabetes Register in Bulgaria to a powerful alerting and predictive framework. PMID- 29038734 TI - Dilemma in management: a patient with active systemic lupus erythematosus presenting with pulmonary cavitary lesion. AB - Pulmonary manifestations of systemic lupus erythematosus (SLE) include, but are not limited to, pneumonia, interstitial pneumonitis, atelectasis and pleural effusion. Cavitary lung lesions are rarely associated with SLE. We present herein the case of a female patient with SLE and lupus nephritis who presented to the hospital with respiratory failure, rash and arthralgias. She was found to have a cavitary lung lesion most concerning for infection. However, despite an extensive inpatient antibiotic course, her symptoms persisted. After a collaborative effort between the primary team, pulmonology, infectious disease and rheumatology, she was placed on systemic glucocorticoid therapy, which resolved not only her respiratory failure, but also her cavitary lung lesion on subsequent follow-up with imaging. The dilemma of management in such cases will be discussed in addition to a review of previously reported cases. PMID- 29038735 TI - Enrichment of milk with magnesium provides healthier and safer dairy products. AB - Biofilms on the surfaces of milk-processing equipment are often a major source of contamination of dairy products. Members of the genus Bacillus appear to be among the most commonly found bacteria in dairy farms and processing plants. Bacillus species may thrive in dairy farm equipment and in dairy products since they can form robust biofilms during growth within milk. We found that fortification of milk with magnesium mitigated biofilm formation by Bacillus species, and thus could notably reduce dairy product spoilage. We also show that the mode of action of Mg2+ ions is specific to inhibition of transcription of genes involved in biofilm formation. Our further findings indicate that in the presence of Mg2+ bacterial cells are hypersensitive to the heat pasteurization applied during milk processing. Additionally, we demonstrated that enrichment of milk with magnesium improved technological properties of milk products such as soft cheeses. Finally, we report that there is a notable increase in the intestinal bioavailability potential of magnesium from supplemented milk compared with that from non supplemented milk. PMID- 29038737 TI - Significant Bradycardia in Critically Ill Patients Receiving Dexmedetomidine and Fentanyl. AB - PURPOSE: To report a case series of three patients who developed significant bradycardia while receiving the combination of dexmedetomidine and fentanyl for sedation and analgesia. MATERIALS AND METHODS: This is a case series of patients obtained from a mixed medical, surgical, and cardiac ICU in a community teaching hospital. Three intubated patients receiving fentanyl and dexmedetomidine infusion developed sudden bradycardia requiring intervention. In all three cases, adjustments to therapy were required. RESULTS: All three patients experienced significant bradycardia, with a heart rate less than 50 bpm, and one patient briefly developed asystole. In Case 1, the fentanyl infusion rate was reduced by 67% and the dexmedetomidine infusion rate was reduced by 25%. In Case 2, the sedation was changed to midazolam, and in Case 3, both fentanyl and dexmedetomidine were discontinued. In all three cases, there were no further incidences of significant bradycardia following intervention. CONCLUSIONS: Fentanyl used in combination with dexmedetomidine can result in clinically significant bradycardia. Further study is warranted to identify risk factors and elucidate the mechanisms that result in life-threatening bradycardia. PMID- 29038738 TI - A Case of Infective Endocarditis and Spinal Epidural Abscess Caused by Streptococcus mitis Bacteremia. AB - A 57-year-old man presented with abdominal pain, hematemesis, and melena. He reported taking high-dose ibuprofen for back pain and drinking several 24-ounce beers daily. Examination was remarkable for icteric sclera, poor dentition, tachycardia, and crescendo-decrescendo murmur at right upper sternal border, radiating to the carotids. Labs revealed leukocytosis, anemia, thrombocytopenia, and elevated liver function tests and INR. Endoscopy demonstrated antral ulcers, duodenitis, and esophagitis. Blood cultures were obtained and broad-spectrum antibiotics started; cultures later grew Streptococcus mitis, and antibiotic coverage was narrowed. Transthoracic echocardiogram (TTE) demonstrated aortic stenosis and regurgitation, but no vegetation. Repeat blood cultures were negative; however, the patient developed neurological symptoms concerning for cauda equina syndrome, and MRI revealed epidural abscess. Emergent decompression could not be performed as the patient developed hematemesis and required intubation. Transesophageal echocardiogram (TEE), initially deferred due to friable esophageal mucosa, was performed and revealed small aortic valve vegetation. Poor oral hygiene was felt to be the probable source of the patient's S. mitis bacteremia, epidural abscess, and infective endocarditis. The patient's neurological symptoms resolved without intervention and remaining teeth were extracted. This case demonstrates that Streptococcus mitis can result in clinically significant bacteremia, particularly in immunocompromised patients, including chronic heavy alcohol users. PMID- 29038736 TI - Down but Not Out: The Consequences of Pretangle Tau in the Locus Coeruleus. AB - Degeneration of locus coeruleus (LC) is an underappreciated hallmark of Alzheimer's disease (AD). The LC is the main source of norepinephrine (NE) in the forebrain, and its degeneration is highly correlated with cognitive impairment and amyloid-beta (Abeta) and tangle pathology. Hyperphosphorylated tau in the LC is among the first detectable AD-like neuropathology in the brain, and while the LC/NE system impacts multiple aspects of AD (e.g., cognition, neuropathology, and neuroinflammation), the functional consequences of hyperphosphorylated tau accrual on LC neurons are not known. Recent evidence suggests that LC neurons accumulate aberrant tau species for decades before frank LC cell body degeneration occurs in AD, suggesting that a therapeutic window exists. In this review, we combine the literature on how pathogenic tau affects forebrain neurons with the known properties and degeneration patterns of LC neurons to synthesize hypotheses on hyperphosphorylated tau-induced dysfunction of LC neurons and the prion-like spread of pretangle tau from the LC to the forebrain. We also propose novel experiments using both in vitro and in vivo models to address the many questions surrounding the impact of hyperphosphorylated tau on LC neurons in AD and its role in disease progression. PMID- 29038739 TI - Unusual Case of Superior Vena Cava Syndrome Caused by Intravascular Thyroid Metastasis. AB - Superior cava venous obstruction use to show a typical clinical presentation and a CT scan or even an ultrasonography can be sufficient to achieve an accurate diagnosis, but in this case, to obtain the final diagnosis, a multimodal assessment is needed. This case report shows a multidisciplinary approach which helped diagnose a complicated case, where conventional diagnostic methods were not enough. PMID- 29038740 TI - Reverse Fosbury Flop Tear of the Rotator Cuff. AB - INTRODUCTION: "Fosbury flop" tear is an avulsion of the posterosuperior rotator cuff from the bone with reversal healing on its medial bursal-side. This case report describes a unique variant of Fosbury flop tear with a lesion of the musculotendinous junction that healed, for its tendon part, on the anterior humerus and coracoid process. CASE PRESENTATION: A 62-year-old man developed a posttraumatic painful shoulder with active loss of range of motion. Magnetic resonance arthrography demonstrated a lesion of the musculotendinous junction of the supraspinatus with healing of the tendon on the above-mentioned structures (reverse Fosbury flop). During arthroscopic evaluation, tendon repair was not possible and a debridement to avoid subacromial and anterior impingement associated with a tenotomy of the long head of the biceps were carried out. One year postoperatively, the patient had complete range of motion and was satisfied with the clinical results. DISCUSSION AND CONCLUSION: Different Fosbury flop tears exist. Radiologists and orthopedic surgeons should be aware of these tear patterns as failure to recognize them may lead to inadequate treatment. PMID- 29038741 TI - Ligament Augmentation and Reconstruction System Failures in Repair of Grade V Acromioclavicular Joint Dislocation. AB - The Ligament Augmentation and Reconstruction System(r) (LARS(r)) represents a popular synthetic anatomical reduction method for acromioclavicular joint dislocation by means of coracoclavicular ligament reconstruction. To our knowledge, no early failure has been documented in the literature. We present two unusual cases of LARS failure, one at four months after implant and the other at three weeks, without obvious causes, requiring re-do reconstruction, and discuss potential contributory factors. PMID- 29038742 TI - Methylene C(sp3)-H Arylation of Aliphatic Ketones Using a Transient Directing Group. AB - Palladium-catalyzed methylene beta-C(sp3)-H arylation of aliphatic ketones using a transient directing group is developed. The use of alpha-benzyl beta-alanine directing group that forms a six-membered chelation with palladium is crucial for promoting the methylene C(sp3)-H bond activation. PMID- 29038743 TI - Mature induced-pluripotent-stem-cell-derived human podocytes reconstitute kidney glomerular-capillary-wall function on a chip. AB - An in vitro model of the human kidney glomerulus - the major site of blood filtration - could facilitate drug discovery and illuminate kidney-disease mechanisms. Microfluidic organ-on-a-chip technology has been used to model the human proximal tubule, yet a kidney-glomerulus-on-a-chip has not been possible because of the lack of functional human podocytes - the cells that regulate selective permeability in the glomerulus. Here, we demonstrate an efficient (> 90%) and chemically defined method for directing the differentiation of human induced pluripotent stem (hiPS) cells into podocytes that express markers of the mature phenotype (nephrin+, WT1+, podocin+, Pax2-) and that exhibit primary and secondary foot processes. We also show that the hiPS-cell-derived podocytes produce glomerular basement-membrane collagen and recapitulate the natural tissue/tissue interface of the glomerulus, as well as the differential clearance of albumin and inulin, when co-cultured with human glomerular endothelial cells in an organ-on-a-chip microfluidic device. The glomerulus-on-a-chip also mimics adriamycin-induced albuminuria and podocyte injury. This in vitro model of human glomerular function with mature human podocytes may facilitate drug development and personalized-medicine applications. PMID- 29038744 TI - Autophagy and Ferroptosis - What's the Connection? AB - PURPOSE OF REVIEW: Autophagy is a conserved intracellular degradation system and plays a dual role in cell death, depending on context and phase. Ferroptosis is a new form of regulated cell death that mainly depends on iron accumulation and lipid peroxidation. In this review, we summarize the processes of autophagy and ferroptosis and discuss their crosstalk mechanisms at the molecular level. RECENT FINDINGS: The original study shows that ferroptosis is morphologically, biochemically, and genetically distinct from autophagy and other types of cell death. However, recent studies demonstrate that activation of ferroptosis is indeed dependent on the induction of autophagy. Additionally, many ferroptosis regulators such as SLC7A11, GPX4, NRF2, p53, HSPB1, CISD1, FANCD2, and ACSL4 have been identified as potential regulators of autophagy. SUMMARY: This review not only highlights the importance of autophagy as an emerging mechanism of ferroptosis, but also raises new insights regarding regulated cell death. PMID- 29038745 TI - The Contractile Phenotype of Dermal Fetal Fibroblasts in Scarless Wound Healing. AB - PURPOSE OF REVIEW: Injured skin in the mammalian fetus can heal regeneratively due to the ability of fetal fibroblasts to effectively reorganize the extracellular matrix (ECM). This process occurs without fetal fibroblasts differentiating into highly contractile myofibroblasts which cause scarring and fibrosis in adult wounds. Here, we provide a brief review of fetal wound healing and the evidence supporting a unique contractile phenotype in fetal fibroblasts. Furthermore, we discuss the biomechanical role of the ECM in driving myofibroblast differentiation in wound healing and the implications for new clinical modalities based on the biophysical properties of fetal fibroblasts. RECENT FINDINGS: We and others have found that fetal fibroblasts are refractory to the environmental stimuli necessary for myofibroblast differentiation in adult wound healing including mechanical stress. SUMMARY: Understanding the biomechanical mechanisms that regulate the contractile phenotype of fetal fibroblasts may unlock new avenues for anti-scarring therapies that target myofibroblast differentiation of adult fibroblasts. PMID- 29038746 TI - Influence of exercise duration on cardiorespiratory responses, energy cost and tissue oxygenation within a 6 hour treadmill run. AB - PURPOSE: The physiological mechanisms for alterations in oxygen utilization ([Formula: see text]) and the energy cost of running (Cr ) during prolonged running are not completely understood, and could be linked with alterations in muscle and cerebral tissue oxygenation. METHODS: Eight trained ultramarathon runners (three women; mean +/- SD; age 37 +/- 7 yr; maximum [Formula: see text] 60 +/- 15 mL min-1 kg-1) completed a 6 hr treadmill run (6TR), which consisted of four modules, including periods of moderate (3 min at 10 km h-1, 10-CR) and heavy exercise intensities (6 min at 70% of maximum [Formula: see text], HILL), separated by three, 100 min periods of self-paced running (SP). We measured [Formula: see text], minute ventilation ([Formula: see text]), ventilatory efficiency ([Formula: see text]), respiratory exchange ratio (RER), Cr , muscle and cerebral tissue saturation index (TSI) during the modules, and heart rate (HR) and perceived exertion (RPE) during the modules and SP. RESULTS: Participants ran 58.3 +/- 10.5 km during 6TR. Speed decreased and HR and RPE increased during SP. Across the modules, HR and [Formula: see text] increased (10 CR), and RER decreased (10-CR and HILL). There were no significant changes in [Formula: see text], [Formula: see text], Cr , TSI and RPE across the modules. CONCLUSIONS: In the context of positive pacing (decreasing speed), increased cardiac drift and perceived exertion over the 6TR, we observed increased RER and increased HR at moderate and heavy exercise intensity, increased [Formula: see text] at moderate intensity, and no effect of exercise duration on ventilatory efficiency, energy cost of running and tissue oxygenation. PMID- 29038747 TI - Light induced intraspecific variability in response to thermal stress in the hard coral Stylophora pistillata. AB - Recent research suggests that prior exposure of several months to elevated irradiance induces enhanced thermal tolerance in scleractinian corals. While this tolerance has been reported at the species level, individual coral colonies may react differently due to individual variability in thermal tolerance. As thermal anomalies are predicted to become common in the upcoming future, intraspecific variation may be key to the survival of coral populations. In order to study light-history based thermal stress responses on individual colonies, we developed a preliminary microcosm experiment where three randomly chosen, aquacultured colonies of the model coral Stylophora pistillata were exposed to two irradiance treatments (200 and 400 MUmol photons m-2 s-1) for 31 days, followed by artificially induced heat stress (~33.4 degrees C). We found different responses to occur at both the intraspecific and the intracolonial levels, as indicated by either equal, less severe, delayed, and/or even non-necrotic responses of corals previously exposed to the irradiance of 400 compared to 200 MUmol photons m-2 s 1. In addition, all individual colonies revealed light-enhanced calcification. Finally, elevated irradiance resulted in a lower chlorophyll a concentration in one colony compared to the control treatment, and the same colony displayed more rapid bleaching compared to the other ones. Taken together, this study highlights the potential importance of intra-individual variability in physiological responses of scleractinian corals and provides recommendations for improving methodological designs for future studies. PMID- 29038749 TI - Extending SEQenv: a taxa-centric approach to environmental annotations of 16S rDNA sequences. AB - Understanding how the environment selects a given taxon and the diversity patterns that emerge as a result of environmental filtering can dramatically improve our ability to analyse any environment in depth as well as advancing our knowledge on how the response of different taxa can impact each other and ecosystem functions. Most of the work investigating microbial biogeography has been site-specific, and logical environmental factors, rather than geographical location, may be more influential on microbial diversity. SEQenv, a novel pipeline aiming to provide environmental annotations of sequences emerged to provide a consistent description of the environmental niches using the ENVO ontology. While the pipeline provides a list of environmental terms on the basis of sample datasets and, therefore, the annotations obtained are at the dataset level, it lacks a taxa centric approach to environmental annotation. The work here describes an extension developed to enhance the SEQenv pipeline, which provided the means to directly generate environmental annotations for taxa under different contexts. 16S rDNA amplicon datasets belonging to distinct biomes were selected to illustrate the applicability of the extended SEQenv pipeline. A literature survey of the results demonstrates the immense importance of sequence level environmental annotations by illustrating the distribution of both taxa across environments as well as the various environmental sources of a specific taxon. Significantly enhancing the SEQenv pipeline in the process, this information would be valuable to any biologist seeking to understand the various taxa present in the habitat and the environment they originated from, enabling a more thorough analysis of which lineages are abundant in certain habitats and the recovery of patterns in taxon distribution across different habitats and environmental gradients. PMID- 29038748 TI - Virulence test using nematodes to prescreen Nocardia species capable of inducing neurodegeneration and behavioral disorders. AB - BACKGROUND: Parkinson's disease (PD) is a disorder characterized by dopaminergic neuron programmed cell death. The etiology of PD remains uncertain-some cases are due to selected genes associated with familial heredity, others are due to environmental exposure to toxic components, but over 90% of cases have a sporadic origin. Nocardia are Actinobacteria that can cause human diseases like nocardiosis. This illness can lead to lung infection or central nervous system (CNS) invasion in both immunocompromised and immunocompetent individuals. The main species involved in CNS are N. farcinica, N. nova, N. brasiliensis and N. cyriacigeorgica. Some studies have highlighted the ability of N. cyriacigeorgica to induce Parkinson's disease-like symptoms in animals. Actinobacteria are known to produce a large variety of secondary metabolites, some of which can be neurotoxic. We hypothesized that neurotoxic secondary metabolite production and the onset of PD-like symptoms in animals could be linked. METHODS: Here we used a method to screen bacteria that could induce dopaminergic neurodegeneration before performing mouse experiments. RESULTS: The nematode Caenorhabditis elegans allowed us to demonstrate that Nocardia strains belonging to N. cyriacigeorgica and N. farcinica species can induce dopaminergic neurodegeneration. Strains of interest involved with the nematodes in neurodegenerative disorders were then injected in mice. Infected mice had behavioral disorders that may be related to neuronal damage, thus confirming the ability of Nocardia strains to induce neurodegeneration. These behavioral disorders were induced by N. cyriacigeorgica species (N. cyriacigeorgica GUH-2 and N. cyriacigeorgica 44484) and N. farcinica 10152. DISCUSSION: We conclude that C. elegans is a good model for detecting Nocardia strains involved in neurodegeneration. This model allowed us to detect bacteria with high neurodegenerative effects and which should be studied in mice to characterize the induced behavioral disorders and bacterial dissemination. PMID- 29038750 TI - Is geography an accurate predictor of evolutionary history in the millipede family Xystodesmidae? AB - For the past several centuries, millipede taxonomists have used the morphology of male copulatory structures (modified legs called gonopods), which are strongly variable and suggestive of species-level differences, as a source to understand taxon relationships. Millipedes in the family Xystodesmidae are blind, dispersal limited and have narrow habitat requirements. Therefore, geographical proximity may instead be a better predictor of evolutionary relationship than morphology, especially since gonopodal anatomy is extremely divergent and similarities may be masked by evolutionary convergence. Here we provide a phylogenetics-based test of the power of morphological versus geographical character sets for resolving phylogenetic relationships in xystodesmid millipedes. Molecular data from 90 species-group taxa in the family were included in a six-gene phylogenetic analysis to provide the basis for comparing trees generated from these alternative character sets. The molecular phylogeny was compared to topologies representing three hypotheses: (1) a prior classification formulated using morphological and geographical data, (2) hierarchical groupings derived from Euclidean geographical distance, and (3) one based solely on morphological data. Euclidean geographical distance was not found to be a better predictor of evolutionary relationship than the prior classification, the latter of which was the most similar to the molecular topology. However, all three of the alternative topologies were highly divergent (Bayes factor >10) from the molecular topology, with the tree inferred exclusively from morphology being the most divergent. The results of this analysis show that a high degree of morphological convergence from substantial gonopod shape divergence generated spurious phylogenetic relationships. These results indicate the impact that a high degree of morphological homoplasy may have had on prior treatments of the family. Using the results of our phylogenetic analysis, we make several changes to the classification of the family, including transferring the rare state-threatened species Sigmoria whiteheadi Shelley, 1986 to the genus Apheloria Chamberlin, 1921 a relationship not readily apparent based on morphology alone. We show that while gonopod differences are a premier source of taxonomic characters to diagnose species pairwise, the traits should be viewed critically as taxonomic features uniting higher levels. PMID- 29038751 TI - Combining graph and flux-based structures to decipher phenotypic essential metabolites within metabolic networks. AB - BACKGROUND: The emergence of functions in biological systems is a long-standing issue that can now be addressed at the cell level with the emergence of high throughput technologies for genome sequencing and phenotyping. The reconstruction of complete metabolic networks for various organisms is a key outcome of the analysis of these data, giving access to a global view of cell functioning. The analysis of metabolic networks may be carried out by simply considering the architecture of the reaction network or by taking into account the stoichiometry of reactions. In both approaches, this analysis is generally centered on the outcome of the network and considers all metabolic compounds to be equivalent in this respect. As in the case of genes and reactions, about which the concept of essentiality has been developed, it seems, however, that some metabolites play crucial roles in system responses, due to the cell structure or the internal wiring of the metabolic network. RESULTS: We propose a classification of metabolic compounds according to their capacity to influence the activation of targeted functions (generally the growth phenotype) in a cell. We generalize the concept of essentiality to metabolites and introduce the concept of the phenotypic essential metabolite (PEM) which influences the growth phenotype according to sustainability, producibility or optimal-efficiency criteria. We have developed and made available a tool, Conquests, which implements a method combining graph-based and flux-based analysis, two approaches that are usually considered separately. The identification of PEMs is made effective by using a logical programming approach. CONCLUSION: The exhaustive study of phenotypic essential metabolites in six genome-scale metabolic models suggests that the combination and the comparison of graph, stoichiometry and optimal flux-based criteria allows some features of the metabolic network functionality to be deciphered by focusing on a small number of compounds. By considering the best combination of both graph-based and flux-based techniques, the Conquests python package advocates for a broader use of these compounds both to facilitate network curation and to promote a precise understanding of metabolic phenotype. PMID- 29038752 TI - Seasonal and year-round use of the Kushiro Wetland, Hokkaido, Japan by sika deer (Cervus nippon yesoensis). AB - The sika deer (Cervus nippon yesoensis) population in the Ramsar-listed Kushiro Wetland has increased in recent years, and the Ministry of the Environment of Japan has decided to take measures to reduce the impact of deer on the ecosystem. However, seasonal movement patterns of the deer (i.e., when and where the deer inhabit the wetland) remain unclear. We examined the seasonal movement patterns of sika deer in the Kushiro Wetland from 2013 to 2015 by analyzing GPS location data for 28 hinds captured at three sites in the wetland. Seasonal movement patterns were quantitatively classified as seasonal migration, mixed, dispersal, nomadic, resident, or atypical, and the degree of wetland utilization for each individual was estimated. The area of overlap for each individual among intra capture sites and inter-capture sites was calculated for the entire year and for each season. Our results showed that the movement patterns of these deer were classified not only as resident but also as seasonal migration, dispersal, and atypical. Approximately one-third of the individuals moved into and out of the wetland during the year as either seasonal migrants or individuals with atypical movement. Some of the individuals migrated to farmland areas outside the wetland (the farthest being 69.9 km away). Half of the individuals inhabited the wetland all or most of the year, i.e., 81-100% of their annual home range was within the wetland area. Even among individuals captured at the same site, different seasonal movement patterns were identified. The overlap areas of the home ranges of individuals from the same capture sites were larger than those for individuals from different capture sites (e.g., mean of annual home range overlap with intra capture sites: 47.7% vs. inter-sites: 1.3%). To achieve more effective ecosystem management including deer management in the wetland, management plans should cover inside and outside of the wetland and separate the population into multiple management units to address the different movement patterns and wetland utilization of the population. PMID- 29038753 TI - Infection of army ant pupae by two new parasitoid mites (Mesostigmata: Uropodina). AB - A great variety of parasites and parasitoids exploit ant societies. Among them are the Mesostigmata mites, a particularly common and diverse group of ant associated arthropods. While parasitism is ubiquitous in Mesostigmata, parasitoidism has only been described in the genus Macrodinychus. Yet information about the basic biology of most Macrodinychus species is lacking. Out of 24 formally described species, information about basic life-history traits is only available for three species. Here we formally describe two new Macrodinychus species, i.e. Macrodinychus hilpertae and Macrodinychus derbyensis. In both species, immature stages developed as ecto-parasitoids on ant pupae of the South East Asian army ant Leptogenys distinguenda. By piercing the developing ant with their chelicera, the mites apparently suck ant hemolymph, ultimately killing host individuals. We compare infection rates among all studied Macrodinychus species and discuss possible host countermeasures against parasitoidism. The cryptic lifestyle of living inside ant nests has certainly hampered the scientific discovery of Macrodinychus mites and we expect that many more macrodinychid species await scientific discovery and description. PMID- 29038754 TI - Histamine-2 receptor antagonist famotidine modulates cardiac stem cell characteristics in hypertensive heart disease. AB - BACKGROUND: Cardiac stem cells (CSCs) play a vital role in cardiac homeostasis. A decrease in the efficiency of cardiac stem cells is speculated in various cardiac abnormalities. The maintenance of a healthy stem cell population is essential for the prevention of adverse cardiac remodeling leading to cardiac failure. Famotidine, a histamine-2 receptor antagonist, is currently used to treat ulcers of the stomach and intestines. In repurposing the use of the drug, reduction of cardiac hypertrophy and improvement in cardiac function of spontaneously hypertensive rats (SHR) was reported by our group. Given that stem cells are affected in cardiac pathologies, the effect of histamine-2 receptor antagonism on CSC characteristics was investigated. METHODS: To examine whether famotidine has a positive effect on CSCs, spontaneously hypertensive rats (SHR) treated with the drug were sacrificed; and CSCs isolated from atrial appendages was evaluated. Six month-old male SHRs were treated with famotidine (30 mg/kg/day) for two months. The effect of famotidine treatment on migration, proliferation and survival of CSCs was compared with untreated SHRs and normotensive Wistar rats. RESULTS: Functional efficiency of CSCs from SHR was compromised relative to that in Wistar rat. Famotidine increased the migration and proliferation potential, along with retention of stemness of CSCs in treated SHRs. Cellular senescence and oxidative stress were also reduced. The expression of H2R was unaffected by the treatment. DISCUSSION: As anticipated, CSCs from SHRs were functionally impaired. Stem cell attributes of famotidine-treated SHRs was comparable to that of Wistar rats. Therefore, in addition to being cardioprotective, the histamine 2 receptor antagonist modulated cardiac stem cells characteristics. Restoration of stem cell efficiency by famotidine is possibly mediated by reduction of oxidative stress as the expression of H2R was unaffected by the treatment. Maintenance of healthy stem cell population is suggested as a possible mechanism underlying the cardioprotective effect of famotidine. PMID- 29038755 TI - Evidence for continual hybridization rather than hybrid speciation between Ligularia duciformis and L. paradoxa (Asteraceae). AB - BACKGROUND: Hybrids possess phenotypic traits that are often intermediate between their parental taxa, which commonly serves as evidence of hybridization in morphological analyses. Natural hybridization has been shown to occur frequently in Ligularia (Asteraceae). In a previous study, Ligularia *maoniushanensis was demonstrated as a natural hybrid species between L. duciformis and L. paradoxa based on morphological and reproductive traits. METHODS: We used three chloroplast (cpDNA) fragments (psbA-trnH, trnL-rpl32 and trnQ-5'rps16), the nuclear ribosomal internal transcribed spacer (nrITS), and co-dominant SSR and dominant ISSR markers to study natural hybridization between L. duciformis and L. paradoxa growing sympatrically in two locations. Parental taxa were inferred using network analyses of cpDNA and nrITS haplotypes. Admixture among individuals was examined using the Bayesian clustering programs STRUCTURE and NewHybrids based on the SSR and ISSR data; and potential introgression in the SSR loci was assessed using the INTROGRESS package. RESULTS: The putative parental species were clearly distinguished from other sympatric Ligularia species by nrITS data, and L. *maoniushanensis individuals were confirmed to be the hybrid offspring of L. duciformis and L. paradoxa. Moreover, introgression was detected among several individuals morphologically identified as L. duciformis or L. paradoxa. Analyses of the cpDNA data revealed primarily unidirectional hybridization between L. duciformis and L. paradoxa, with L. paradoxa as the maternal parent in Mt. Maoniu, whereas bidirectional but asymmetrical hybridization was inferred to occur in Heihai Lake. The STRUCTURE analyses based on the SSR data detected two distinct clusters among the three taxa. The NewHybrids analyses showed that individuals circumscribed as L. *maoniushanensis were dominated by early- and later-generation and backcrossing hybrids. The NewHybrids results based on the ISSR data were congruent with SSR results. In addition, introgression was detected in some SSR loci, and heterogeneity among loci was found in terms of detected patterns of introgression. CONCLUSIONS: Our data provide strong evidence for hybridization and introgression between L. duciformis and L. paradoxa. Ligularia *maoniushanensis was demonstrated to be of hybrid origin. Since no evident reproductive isolation was found between the two parental species, detected hybrids appear to be part of hybrid swarms resulting from frequent and ongoing gene flow, which might impede the formation of a new hybrid species. PMID- 29038756 TI - The effects of familiarity on escape responses in the Trinidadian guppy (Poecilia reticulata). AB - Predation is the main cause of mortality during early life stages. The ability to avoid and evade potential threats is, therefore, favoured to evolve during the early stages of life. It is also during these early stages that the process of familiarization occurs. It has long been recognized that associating with familiar individuals confers antipredator benefits. Yet gaps in our knowledge remain about how predator evasion is affected by social experience during early stages. In this study, we test the hypothesis that familiarization acquired during early life stages improves escape responses. Using the guppy Poecilia reticulata, we examine the effect of different recent social conditions in the three main components of predator evasion. Using high-speed motion analysis, we compared the number of individuals in each test group that responded to a visual stimulus, their reactive distance and magnitude of their response (maximum speed, maximum acceleration and distance) in groups composed either of familiar or non familiar individuals. Contrary to the prediction, groups composed of familiar individuals were less responsive than groups of unfamiliar individuals. Reactive distance and magnitude of response were more dependent on individual size rather than on familiarity. Larger individuals reached higher maximum speeds and total distances in their escape response. Our result indicates that familiarity is likely to affect behaviour earlier in a predator-prey interaction, which then affects the behavioural component of the response. Taken together, our study contributes to previous ones by distinguishing which components of an escape response are modulated by familiarity. PMID- 29038757 TI - Complete mitochondrial genome sequences of the northern spotted owl (Strix occidentalis caurina) and the barred owl (Strix varia; Aves: Strigiformes: Strigidae) confirm the presence of a duplicated control region. AB - We report here the successful assembly of the complete mitochondrial genomes of the northern spotted owl (Strix occidentalis caurina) and the barred owl (S. varia). We utilized sequence data from two sequencing methodologies, Illumina paired-end sequence data with insert lengths ranging from approximately 250 nucleotides (nt) to 9,600 nt and read lengths from 100-375 nt and Sanger-derived sequences. We employed multiple assemblers and alignment methods to generate the final assemblies. The circular genomes of S. o. caurina and S. varia are comprised of 19,948 nt and 18,975 nt, respectively. Both code for two rRNAs, twenty-two tRNAs, and thirteen polypeptides. They both have duplicated control region sequences with complex repeat structures. We were not able to assemble the control regions solely using Illumina paired-end sequence data. By fully spanning the control regions, Sanger-derived sequences enabled accurate and complete assembly of these mitochondrial genomes. These are the first complete mitochondrial genome sequences of owls (Aves: Strigiformes) possessing duplicated control regions. We searched the nuclear genome of S. o. caurina for copies of mitochondrial genes and found at least nine separate stretches of nuclear copies of gene sequences originating in the mitochondrial genome (Numts). The Numts ranged from 226-19,522 nt in length and included copies of all mitochondrial genes except tRNAPro , ND6, and tRNAGlu . Strix occidentalis caurina and S. varia exhibited an average of 10.74% (8.68% uncorrected p-distance) divergence across the non-tRNA mitochondrial genes. PMID- 29038759 TI - Nests of red wood ants (Formica rufa-group) are positively associated with tectonic faults: a double-blind test. AB - Ecological studies often are subjected to unintentional biases, suggesting that improved research designs for hypothesis testing should be used. Double-blind ecological studies are rare but necessary to minimize sampling biases and omission errors, and improve the reliability of research. We used a double-blind design to evaluate associations between nests of red wood ants (Formica rufa, RWA) and the distribution of tectonic faults. We randomly sampled two regions in western Denmark to map the spatial distribution of RWA nests. We then calculated nest proximity to the nearest active tectonic faults. Red wood ant nests were eight times more likely to be found within 60 m of known tectonic faults than were random points in the same region but without nests. This pattern paralleled the directionality of the fault system, with NNE-SSW faults having the strongest associations with RWA nests. The nest locations were collected without knowledge of the spatial distribution of active faults thus we are confident that the results are neither biased nor artefactual. This example highlights the benefits of double-blind designs in reducing sampling biases, testing controversial hypotheses, and increasing the reliability of the conclusions of research. PMID- 29038758 TI - Illegal use of natural resources in federal protected areas of the Brazilian Amazon. AB - BACKGROUND: The Brazilian Amazon is the world's largest rainforest regions and plays a key role in biodiversity conservation as well as climate adaptation and mitigation. The government has created a network of protected areas (PAs) to ensure long-term conservation of the region. However, despite the importance of and positive advances in the establishment of PAs, natural resource depletion in the Brazilian Amazon is pervasive. METHODS: We evaluated a total of 4,243 official law enforcement records generated between 2010 and 2015 to understand the geographical distribution of the illegal use of resources in federal PAs in the Brazilian Amazon. We classified illegal activities into ten categories and used generalized additive models (GAMs) to evaluate the relationship between illegal use of natural resources inside PAs with management type, age of PAs, population density, and accessibility. RESULTS: We found 27 types of illegal use of natural resources that were grouped into 10 categories of illegal activities. Most infractions were related to suppression and degradation of vegetation (37.40%), followed by illegal fishing (27.30%) and hunting activities (18.20%). The explanatory power of the GAMs was low for all categories of illegal activity, with a maximum explained variation of 41.2% for illegal activities as a whole, and a minimum of 14.6% for hunting activities. DISCUSSION: These findings demonstrate that even though PAs are fundamental for nature conservation in the Brazilian Amazon, the pressures and threats posed by human activities include a broad range of illegal uses of natural resources. Population density up to 50 km from a PA is a key variable, influencing illegal activities. These threats endanger long-term conservation and many efforts are still needed to maintain PAs that are large enough and sufficiently intact to maintain ecosystem functions and protect biodiversity. PMID- 29038760 TI - Cellobiohydrolase B of Aspergillus niger over-expressed in Pichia pastoris stimulates hydrolysis of oil palm empty fruit bunches. AB - BACKGROUND: Aspergillus niger, along with many other lignocellulolytic fungi, has been widely used as a commercial workhorse for cellulase production. A fungal cellulase system generally includes three major classes of enzymes i.e., beta glucosidases, endoglucanases and cellobiohydrolases. Cellobiohydrolases (CBH) are vital to the degradation of crystalline cellulose present in lignocellulosic biomass. However, A. niger naturally secretes low levels of CBH. Hence, recombinant production of A. niger CBH is desirable to increase CBH production yield and also to allow biochemical characterisation of the recombinant CBH from A. niger. METHODS: In this study, the gene encoding a cellobiohydrolase B (cbhB) from A. niger ATCC 10574 was cloned and expressed in the methylotrophic yeast Pichia pastoris X-33. The recombinant CBHB was purified and characterised to study its biochemical and kinetic characteristics. To evaluate the potential of CBHB in assisting biomass conversion, CBHB was supplemented into a commercial cellulase preparation (Cellic(r) CTec2) and was used to hydrolyse oil palm empty fruit bunch (OPEFB), one of the most abundant lignocellulosic waste from the palm oil industry. To attain maximum saccharification, enzyme loadings were optimised by response surface methodology and the optimum point was validated experimentally. Hydrolysed OPEFB samples were analysed using attenuated total reflectance FTIR spectroscopy (ATR-FTIR) to screen for any compositional changes upon enzymatic treatment. RESULTS: Recombinant CBHB was over-expressed as a hyperglycosylated protein attached to N-glycans. CBHB was enzymatically active towards soluble substrates such as 4-methylumbelliferyl-beta-D-cellobioside (MUC), p-nitrophenyl-cellobioside (pNPC) and p-nitrophenyl-cellobiotrioside (pNPG3) but was not active towards crystalline substrates like Avicel(r) and Sigmacell cellulose. Characterisation of purified CBHB using MUC as the model substrate revealed that optimum catalysis occurred at 50 degrees C and pH 4 but the enzyme was stable between pH 3 to 10 and 30 to 80 degrees C. Although CBHB on its own was unable to digest crystalline substrates, supplementation of CBHB (0.37%) with Cellic(r) CTec2 (30%) increased saccharification of OPEFB by 27%. Compositional analyses of the treated OPEFB samples revealed that CBHB supplementation reduced peak intensities of both crystalline cellulose Ialpha and Ibeta in the treated OPEFB samples. DISCUSSION: Since CBHB alone was inactive against crystalline cellulose, these data suggested that it might work synergistically with other components of Cellic(r) CTec2. CBHB supplements were desirable as they further increased hydrolysis of OPEFB when the performance of Cellic(r) CTec2 was theoretically capped at an enzyme loading of 34% in this study. Hence, A. niger CBHB was identified as a potential supplementary enzyme for the enzymatic hydrolysis of OPEFB. PMID- 29038761 TI - Comparison of human papillomavirus (HPV) detection in urine and cervical swab samples using the HPV GenoArray Diagnostic assay. AB - Human papillomavirus (HPV) is the leading cause of cervical cancer. Urine-based HPV testing offers a simple and non-invasive method because of its increasing acceptance. A total of 164 pairs of cervical swab and urine samples from Thai women who underwent cervical cancer screening were used for HPV testing with HPV GenoArray Diagnostic Kits. The overall concordance percentage for HPV detection in the cervical swab and urine samples was 65.2%. The HPV genotypes most commonly detected were HPV16 and HPV18. An analysis of the urine samples and a second analysis of the cervical swab samples showed that the differences in the overall HPV detection rate between women with normal and abnormal cytology were not significant (p > 0.05). Urine samples processed with the GenoArray assay is an alternative for women who decline to undergo Pap smear even though it is not ideal as the first-line screening option. PMID- 29038762 TI - Clinical outcomes of residual or recurrent nasopharyngeal carcinoma treated with endoscopic nasopharyngectomy plus chemoradiotherapy or with chemoradiotherapy alone: a retrospective study. AB - BACKGROUND: Local residual and recurrent nasopharyngeal carcinoma (NPC) generally shows treatment failure after standard radiotherapy with or without concurrent chemotherapy. Whether endoscopic nasopharyngectomy might provide an additional therapeutic advantage remains controversial. Therefore, we retrospectively compared the clinical prognoses of patients with residual or recurrent NPC treated with endoscopic nasopharyngectomy combined with chemoradiotherapy (CRT) with those of patients treated with CRT alone. METHODS AND MATERIALS: A total of sixty-two patients with local residual or recurrent NPC were studied retrospectively: 36 patients received endoscopic nasopharyngectomy combined with CRT, whereas 26 patients who refused the surgery or had surgical contraindications received CRT alone. Serum Epstein-Barr virus (EBV) DNA levels were measured pre- and post-treatment. The differences in prognosis between the two treatment regimens and the pre- and post-treatment changes in EBV-DNA levels were analyzed. RESULTS: The median follow-up time was 31 months, with a 3-year overall survival (OS) of 51.40% and a 3-year disease-free survival (DFS) of 46.86%. The surgery + CRT group had a better OS than the CRT alone group did (chi2 = 4.054, P = 0.044). The pretreatment EBV-DNA levels showed a positive correlation with the clinical staging of recurrent NPC (chi2 = 11.674, P = 0.009). Patients with negative pretreatment serum EBV-DNA levels showed a superior OS to those of patients who tested positive for EBV-DNA (>0 copy/mL) (chi2 = 9.833, P = 0.002). The post-treatment EBV-DNA levels, compared with the pretreatment levels, decreased significantly in the surgery + CRT group (Z = - 3.484, P = 0.000). In contrast, the EBV-DNA levels after CRT alone did not decrease significantly (Z = - 1.956, P = 0.051). Multivariate analysis indicated that local staging, pretreatment EBV-DNA load, and the treatment method were independent risk factors for OS. Subgroup analysis indicated that the patients who tested negative for EBV-DNA before the treatment and those who received surgery + CRT showed a better OS than those who received CRT alone. CONCLUSIONS: The pretreatment serum EBV-DNA level was associated with disease prognosis. The combination therapy preceded by surgery can effectively decrease the copy number of EBV-DNA. Patients with local intermediate- and late-stage NPC, especially those negative for EBV-DNA, may consider opting for surgery followed by post operative adjuvant radiotherapy or chemotherapy. PMID- 29038763 TI - Mouse spermatozoa with higher fertilization rates have thinner nuclei. AB - BACKGROUND: Although spermatozoa with normal morphology are assumed to have uniform fertilization ability, recent data show that even normal spermatozoa have considerable variation in their head shape which is associated with differences in fertilization ability. Appropriate quantitative indicators for good sperm morphology, however, remain unidentified. METHODS: Therefore, in an effort to identify such an indicator, we compared the nuclear contour of normal mouse spermatozoa by quantitative multivariate analysis using elliptic Fourier descriptors combined with principal component analysis. The spermatozoa were obtained from different strains and collection sites which have been shown to be associated with different fertilization abilities. RESULTS: We found that the head was 5.7% thinner in spermatozoa from the B6D2F1 (BDF1) strain, known to have a higher fertilization rate, than in those from the C57BL/6N (B6N) strain, which has a lower fertilization rate. Moreover, zona-penetrated spermatozoa in the perivitelline space consistently had 5.4% thinner heads than those isolated from the epididymis before ejaculation. The aspect ratio, which represents the sperm head thinness, uniquely distinguished these sperm populations, confirming its validity as a morphological indicator. DISCUSSION: Because aspect ratio has also been shown to characterize human spermatozoa, this unique morphometric indicator might be applicable to compare normal spermatozoa among multiple patients, which will greatly facilitate and enhance current reproductive technologies. PMID- 29038764 TI - Pulmonary transcriptomic responses indicate a dual role of inflammation in pneumonia development and viral clearance during 2009 pandemic influenza infection. AB - BACKGROUND: The interaction between influenza virus and the host response to infection clearly plays an important role in determining the outcome of infection. While much is known on the participation of inflammation on the pathogenesis of severe A (H1N1) pandemic 09-influenza virus, its role in the course of non-fatal pneumonia has not been fully addressed. METHODS: A systems biology approach was used to define gene expression profiles, histology and viral dynamics in the lungs of healthy immune-competent mice with pneumonia caused by a human influenza A (H1N1) pdm09 virus, which successfully resolved the infection. RESULTS: Viral infection activated a marked pro-inflammatory response at the lung level paralleling the emergence of histological changes. Cellular immune response and cytokine signaling were the two signaling pathway categories more representative of our analysis. This transcriptome response was associated to viral clearance, and its resolution was accompanied by resolution of histopathology. DISCUSSION: These findings suggest a dual role of pulmonary inflammation in viral clearance and development of pneumonia during non-fatal infection caused by the 2009 pandemic influenza virus. Understanding the dynamics of the host's transcriptomic and virological changes over the course of the infection caused by A (H1N1) pdm09 virus may help identifying the immune response profiles associated with an effective response against influenza virus. PMID- 29038765 TI - The complete chloroplast genome sequence of strawberry (Fragaria * ananassa Duch.) and comparison with related species of Rosaceae. AB - Compared with other members of the family Rosaceae, the chloroplast genomes of Fragaria species exhibit low variation, and this situation has limited phylogenetic analyses; thus, complete chloroplast genome sequencing of Fragaria species is needed. In this study, we sequenced the complete chloroplast genome of F. * ananassa 'Benihoppe' using the Illumina HiSeq 2500-PE150 platform and then performed a combination of de novo assembly and reference-guided mapping of contigs to generate complete chloroplast genome sequences. The chloroplast genome exhibits a typical quadripartite structure with a pair of inverted repeats (IRs, 25,936 bp) separated by large (LSC, 85,531 bp) and small (SSC, 18,146 bp) single copy (SC) regions. The length of the F. * ananassa 'Benihoppe' chloroplast genome is 155,549 bp, representing the smallest Fragaria chloroplast genome observed to date. The genome encodes 112 unique genes, comprising 78 protein-coding genes, 30 tRNA genes and four rRNA genes. Comparative analysis of the overall nucleotide sequence identity among ten complete chloroplast genomes confirmed that for both coding and non-coding regions in Rosaceae, SC regions exhibit higher sequence variation than IRs. The Ka/Ks ratio of most genes was less than 1, suggesting that most genes are under purifying selection. Moreover, the mVISTA results also showed a high degree of conservation in genome structure, gene order and gene content in Fragaria, particularly among three octoploid strawberries which were F. * ananassa 'Benihoppe', F. chiloensis (GP33) and F. virginiana (O477). However, when the sequences of the coding and non-coding regions of F. * ananassa 'Benihoppe' were compared in detail with those of F. chiloensis (GP33) and F. virginiana (O477), a number of SNPs and InDels were revealed by MEGA 7. Six non coding regions (trnK-matK, trnS-trnG, atpF-atpH, trnC-petN, trnT-psbD and trnP psaJ) with a percentage of variable sites greater than 1% and no less than five parsimony-informative sites were identified and may be useful for phylogenetic analysis of the genus Fragaria. PMID- 29038766 TI - External validation of cut-off points for foveal thickness taking into account the intraretinal fluid using optical coherence tomography to diagnose diabetic macular oedema. AB - BACKGROUND: In late 2015, cut-off points were published for foveal thickness to diagnose diabetic macular oedema taking into account the presence of intraretinal fluid using optical coherence tomography (OCT) in primary care patients (90 um in the presence of intraretinal fluid and 310 um otherwise). METHODS: This cross sectional observational study was carried out on 134 eyes of diabetic patients treated in specialised ophthalmology services in a Spanish region in 2012-2013, to externally validate the aforementioned cut-off points. The main variable (Clinical Standard) was the diagnosis of macular oedema through indirect ophthalmoscopy and posterior segment slit-lamp biomicroscopy. As validation variables, both the foveal thickness and the presence of intraretinal fluid obtained by OCT were used. Validation was performed using bootstrapping by calculating the area under the ROC curve (AUC), sensitivity, specificity, positive likelihood ratio (PLR) and negative likelihood ratio (NLR). RESULTS: Forty-one eyes presented diabetic macular oedema (30.6%). The bootstrapping validation parameters were: AUC, 0.88; sensitivity, 0.75; specificity, 0.95; PLR, 14.31; NLR, 0.26. These values were very similar to those of the original publication. CONCLUSION: We have externally validated in specialised care patients the cut-off points published for the diagnosis of diabetic macular oedema. We suggest that others carry out validation studies in their communities. PMID- 29038768 TI - Gut microbial metabolite short-chain fatty acids and obesity. AB - Over the past decade, the gut microbiota has emerged as an essential mediator in the pathophysiology of obesity and related metabolic disorders. In this context, the reciprocal interactions of the gut microbiota structure and their metabolite profiles with host metabolism predisposing to a range of pathological conditions (e.g., insulin resistance) related to energy homeostasis have been increasingly discussed in various animal models and human cohorts. Remarkably, as the role of gut microbial metabolites as critical signaling molecules that function through the complementary host receptors has come to be appreciated, tremendous attention has been focused on the proposed diet-gut microbiota-host homeostasis axis, entailing extensive cross-disciplinary efforts in medical, pharmaceutical, and agricultural sciences. This review will discuss the recent advances in understanding the mechanisms whereby the gut microbiota modulates the effects of diet and shapes the host metabolism either towards or away from obesity and related metabolic conditions. In particular, the interactions of short chain fatty acids (SCFAs), a subset of key gut microbial metabolites, with their specific receptors will be reviewed in relation to host energy homeostatic regulation and evaluated for potential as novel therapeutic targets for diet induced obesity. PMID- 29038767 TI - Evaluation of plasma cytokines in patients with cocaine use disorders in abstinence identifies transforming growth factor alpha (TGFalpha) as a potential biomarker of consumption and dual diagnosis. AB - BACKGROUND: Cocaine use disorder (CUD) is a complex health condition, especially when it is accompanied by comorbid psychiatric disorders (dual diagnosis). Dual diagnosis is associated with difficulties in the stratification and treatment of patients. One of the major challenges in clinical practice of addiction psychiatry is the lack of objective biological markers that indicate the degree of consumption, severity of addiction, level of toxicity and response to treatment in patients with CUD. These potential biomarkers would be fundamental players in the diagnosis, stratification, prognosis and therapeutic orientation in addiction. Due to growing evidence of the involvement of the immune system in addiction and psychiatric disorders, we tested the hypothesis that patients with CUD in abstinence might have altered circulating levels of signaling proteins related to systemic inflammation. METHODS: The study was designed as a cross sectional study of CUD treatment-seeking patients. These patients were recruited from outpatient programs in the province of Malaga (Spain). The study was performed with a total of 160 white Caucasian subjects, who were divided into the following groups: patients diagnosed with CUD in abstinence (N = 79, cocaine group) and matched control subjects (N = 81, control group). Participants were clinically evaluated with the diagnostic interview PRISM according to the DSM-IV TR, and blood samples were collected for the determination of chemokine C-C motif ligand 11 (CCL11, eotaxin-1), interferon gamma (IFNgamma), interleukin-4 (IL-4), interleukin-8 (IL-8), interleukin-17alpha (IL-17alpha), macrophage inflammatory protein 1alpha (MIP-1alpha) and transforming growth factor alpha (TGFalpha) levels in the plasma. Clinical and biochemical data were analyzed in order to find relationships between variables. RESULTS: While 57% of patients with CUD were diagnosed with dual diagnosis, approximately 73% of patients had other substance use disorders. Cocaine patients displayed greater cocaine symptom severity when they were diagnosed with psychiatric comorbidity. Regarding inflammatory factors, we observed significantly lower plasma levels of IL-17alpha (p < 0.001), MIP-1alpha (p < 0.001) and TGFalpha (p < 0.05) in the cocaine group compared with the levels in the control group. Finally, there was a significant primary effect of dual diagnosis on the plasma concentrations of TGFalpha (p < 0.05) in the cocaine group, and these levels were lower in patients with dual diagnoses. DISCUSSION: IL-17alpha, MIP-1alpha and TGFalpha levels are different between the cocaine and control groups, and TGFalpha levels facilitate the identification of patients with dual diagnosis. Because TGFalpha reduction is associated with enhanced responses to cocaine in preclinical models, we propose TGFalpha as a potential biomarker of complex CUD in humans. PMID- 29038770 TI - Lactobacillus apinorum belongs to the fructophilic lactic acid bacteria. AB - Potential fructophilic characteristics of Lactobacillus apinorum, originally isolated from the guts of honeybees (Apis mellifera), were studied in the present study. The species showed typical fructophilic growth characteristics, i.e., active growth on d-fructose, poor growth on d-glucose, and accelerated growth on d-glucose in the presence of electron acceptors. Biochemical characteristics strongly supported classification of the species into fructophilic lactic acid bacteria (FLAB). Furthermore, genetic analyses suggested that the species underwent extensive gene reduction, similar to that recorded for Lactobacillus kunkeei and other FLAB. These data clearly indicated that L. apinorum is the second fructophilic species within the genus Lactobacillus. PMID- 29038769 TI - Polysaccharide from black currant (Ribes nigrum L.) stimulates dendritic cells through TLR4 signaling. AB - Black currant (Ribes nigrum) has various beneficial properties for human health. In particular, polysaccharide from black currant was found to be an immunostimulating food ingredient and was reported to have antitumor activity in a mouse model. We named it cassis polysaccharide (CAPS). In a previous study, CAPS administration caused tumor necrosis factor-alpha (TNF-alpha) and interleukin-1beta (IL-1beta) production in vitro and in vivo, but the immunological mechanism of CAPS was not demonstrated. In this study, we revealed the CAPS immunostimulating mechanism in vitro. First, we found that CAPS activated dendritic cells (DCs). Second, we investigated whether it depends on Toll-like receptor 4 (TLR4) and myeloid differentiation primary response (Myd). We concluded that CAPS stimulates DCs through Myd88 depending TLR4 signaling and activates Th1-type cytokine release. PMID- 29038771 TI - Detection of antibiotic resistance genes in the feces of young adult Japanese. AB - Antibiotic resistance genes in the feces of healthy young adult Japanese were analyzed with polymerase chain reaction using specific primers. Antibiotic resistance genes against macrolides (ermB, ermF, ermX, and mefA/E), tetracyclines (tetW, tetQ, tetO, and tetX), beta-lactam antibiotics (blaTEM ), and streptomycin (aadE) were detected in more than 50% of subjects. These antibiotic resistance genes are likely widespread in the large intestinal bacteria of young adult Japanese. PMID- 29038772 TI - Revealing the genomic differences between two subgroups in Lactobacillus gasseri. AB - Being an autochthonous species in humans, Lactobacillus gasseri is widely used as a probiotic for fermented products. We thoroughly compared the gene contents of 75 L. gasseri genomes and identified two intraspecific groups by the average nucleotide identity (ANI) threshold of 94%. Group I, with 48 strains, possessed 53 group-specific genes including the gassericin T cluster (9 genes) and N-acyl homoserine lactone lactonase. Group II, with 27 strains, including the type strain ATCC 33323, possessed group-specific genes with plasmid- or phage-related annotations. The genomic differences provide evidences for demarcating a new probiotic group within L. gasseri. PMID- 29038773 TI - A fusion protein strategy for soluble expression of Stevia glycosyltransferase UGT76G1 in Escherichia coli. AB - The UDP-glucosyltransferase UGT76G1 from Stevia rebaudiana converts stevioside to rebaudioside A via a one-step glycosylation reaction, which increases the amount of sweet-tasting rebaudioside A and decreases the amount of stevioside that has a bitter aftertaste. This enzyme could, therefore, conceivably be used to improve the organoleptic properties of steviol glycosides and offer a cost-effective preparation of high-purity rebaudioside A. Producing soluble enzymes by overexpression is a prerequisite for large-scale biocatalysis. However, most of the UGT76G1 overexpressed in Escherichia coli is in inclusion bodies. In this study, three N-terminal fusion partners, 3'-phosphoadenosine-5'-phosphatase (CysQ), 2-keto-3-deoxy-6-phosphogluconate aldolase (EDA) and N-utilisation substance A (NusA), were tested to improve UGT76G1 expression and solubility in E. coli. Compared with the fusion-free protein, the solubility of UGT76G1 was increased 40% by fusion with CysQ, and the glucosyltransferase activity of the crude extract was increased 82%. This successful CysQ fusion strategy could be applied to enhance the expression and solubility of other plant-derived glucosyltransferases and presumably other unrelated proteins in the popular, convenient and cost-effective E. coli host. PMID- 29038775 TI - Intralesional Endoscopy and Septectomy as a Diagnostic Tool and Treatment Method for Lymphatic Malformations. PMID- 29038774 TI - Interaction of turmeric (Curcuma longa L.) with beneficial microbes: a review. AB - Curcuma longa L., commonly known as turmeric, is a rhizomatous herb of the family Zingiberaceae. It is mostly used as a spice, a coloring agent and broadly used in traditional medicine such as Ayurveda, Unani, etc., Turmeric rhizomes interact with a large numbers of rhizosphere-associated microbial species, and some enter the plant tissue and act as endophytes. Both rhizospheric and endophytic species are directly or indirectly involved in growth promotion and disease management in plants and also play an important role in the modulation of morphological growth, secondary metabolite production, curcumin content, antioxidant properties, etc. The present review focuses on the rhizobacterial and endophytic bacterial and fungal populations associated with the turmeric. PMID- 29038776 TI - Torsion of an Accessory Hepatic Lobe with Embedded Gallbladder: In an 11-Month Old Boy. AB - An accessory lobe of the liver is a rare entity in clinical practice which is diagnosed incidentally. Infrequently, it may present as torsion with a clinical picture of an acute abdomen, a palpable mass, and may be associated with liver function abnormalities. Many of these patients have a history of previous surgery for congenital abdominal wall defects such as omphalocele. We present an extremely rare case of torsion of an accessory hepatic lobe in an 11-month-old male patient who presented in a state of shock. The infant underwent laparotomy and excision of the accessory lobe. Here, we aim to emphasize the importance of prompt management and early resection which is the cornerstone of a favorable outcome. PMID- 29038778 TI - Ophthalmological abnormalities in wild European hedgehogs (Erinaceus europaeus): a survey of 300 animals. AB - In this study we aimed to examine wild European hedgehogs (Erinaceus europaeus) in rescue centres and to determine ocular abnormalities in this animal population. Three hundred animals varying in age from 2 months to 5 years were examined, 147 being male and 153 female. All animals were evaluated with direct and indirect ophthalmoscopy and slit lamp biomicroscopy in animals where lesions were detected. Tonometry using the Tonovet rebound tonometer was undertaken in selected animals as was assessment of tear production using the Schirmer I tear test. Four animals were affected by orbital infection, 3 were anophthalmic, 2 unilaterally and one bilaterally, 3 by conjunctivitis, 3 by non-ulcerative keratitis and 4 by uveitis with corneal oedema. Fifty seven animals were affected by cataract, 54 with bilateral nuclear lens opacities. Twenty six of these animals were young animals considered too small to hibernate. This report documents the first prospective study of ocular disease in the European hedgehog. The predominant finding was bilateral nuclear cataract seen particularly in young poorly growing animals. Investigation into the potential causation of cataracts by poor nutrition or poor feeding ability by lens opacification requires further study. PMID- 29038779 TI - Tear ferning in normal dogs and dogs with keratoconjunctivitis sicca. AB - This study evaluates tear ferning as an ancillary technique for the evaluation of the canine tear film in normal eyes and eyes affected by keratoconjunctivitis sicca (KCS). Thirty dogs with KCS and 50 control dogs with normal tear film were evaluated with a full ophthalmoscopic examination and a Schirmer tear test type 1 (STT) determined before tear samples were obtained from the medial canthus with a microhaematocrit capillary tube. 10ul of tear was placed on a microscope slide and the time to first formation of a fern of crystallised tear solute was determined. The appearance of the ferning pattern was graded and correlated with the STT value. All eyes with KCS had abnormal ferning patterns while 39 out of the 50 normal dogs (78%) had so-called 'normal' ferning patterns. The mean STT for dogs showing 'normal' ferning patterns was 20.6mm/min for the left eye and 21.3mm/min for the right eye. STT values for eyes with 'abnormal' ferning patterns were 10.9mm/min and 12.4mm/min, these differing from the normal eyes with STT above 15mm/min significantly. These findings suggest that tear ferning could be a valuable technique for assessment of the tear film in dogs with KCS. PMID- 29038780 TI - Pulmonary ossification and microlithiasis in a bitch with multicentric mammary tumors. AB - Microliths and ossification were found in the lungs of a 12-year-old bitch suffering from compound mammary gland tumor which has disseminated in the inguinal lymph node glands and the lungs. Pulmonary ossification appeared grossly as irregular stony sharp particles which infiltrated the lung tissue and were readily recognizable from under the pleura as grayish sharp protruding particles. Microscopic examination revealed the existence of intra-alveolar single or multilobular particles of ossification which are formed of lamellated osseous substance with osteocytes in lacunae. Microlith particles were also seen and were smaller, usually solitary and less frequent. They comprised strongly basophilic smooth laminated spherical particles which may enclose faintly stained substances. Both structures were not associated with inflammatory response. Larger particles appeared as white miliary spots by radiography. This article documents for a very rare case of pulmonary microlithiasis and ossification in a dog. PMID- 29038777 TI - The ABCD study of neurodevelopment: Identifying neurocircuit targets for prevention and treatment of adolescent substance abuse. AB - Substance use disorders (SUD) can be considered developmental disorders in light of their frequent origins in substance initiation during adolescence. Cross sectional functional magnetic resonance imaging (fMRI) studies of adolescent substance users or adolescents with SUD have indicated aberrations in brain structures or circuits implicated in motivation, self-control, and mood regulation. However, attributing these differences to the neurotoxicological effects of chronic substance use has been problematic in that these circuits are also aberrant in at-risk children, such as those with prenatal substance exposure, externalizing disorders (such as conduct disorder), or prodromal internalizing disorders such as depression. To better isolate the effects of substance exposure on the adolescent brain, the newly-launched Adolescent Brain Cognitive Development (ABCD) study, funded by the National Institutes of Health, will follow the neurodevelopmental trajectories of over 11,000 American 9/10-year olds for 10 years, into emerging adulthood. This study will provide a rich open access dataset on longitudinal interactions of neurodevelopment, environmental exposures, and childhood psychopathology that confer addiction risk. The ABCD twin study will further clarify genetic versus experiential influences (e.g., substance use) on neurodevelopmental and psychosocial outcomes. Neurocircuitry thought to regulate mood and behavior has been directly normalized by administration of psychoactive medications and by cognitive therapies in adults. Because of this, we contend that ABCD project data will be a crucial resource for prevention and treatment of SUD in adolescence because its cutting-edge neuroimaging and childhood assessments hold potential for discovery of additional targetable brain differences earlier in development that are prognostic of (or aberrant in) SUD. The ABCD sample size will also have the power to illuminate how sex differences, environmental interactions and other individual differences interact with neurodevelopment to inform treatment in different groups of adolescents. PMID- 29038781 TI - Comparison between fish and linseed oils administered orally for the treatment of experimentally induced keratoconjunctivitis sicca in rabbits. AB - The objective of this study was to compare the efficacy of two sources of omega 3 and 6, fish oil (FO) and linseed oil (LO), orally administered, alone or in combination, for treating experimentally induced keratoconjunctivitis sicca (KCS) in rabbits. Twenty-eight New Zealand rabbits were used in this study. Seven animals were allocated to the C group (negative control), and KCS was induced in 21 animals by topically applying 1% atropine sulfate drops for 7 days. Treatment with atropine was maintained throughout the study period (12 weeks). The rabbits were divided into 3 treatment groups containing 7 animals each: FO group, LO group and FLO group (FO and LO). The animals were evaluated using the Schirmer Tear Test I (STT I), Rose Bengal Test (RBT), fluorescein test (FT), tear film break-up time (TBUT), and conjunctival and histopathological analysis. There was a significant increase in STT I and TBUT values in treatment groups, but the increase occurred earlier in the FO group. The results of the RBT and FT were similar among treatment groups, except FT, in the FLO group, negative staining was only in 12 weeks. There was a significant decrease in the number of goblet cells in the FLO group compared with the other groups. The results demonstrated that orally administered of FO and LO improved the clinical signs of KCS. However, improvement occurred earlier in the FO group. Using oils in combination did not provide additional benefits. These results contribute to the future development of new oral formulations as adjuvant therapies for KCS. PMID- 29038782 TI - Jejuno-jejunal intussusception in a guinea pig (Cavia porcellus). AB - An approximately four-year-old male castrated guinea pig (Cavia porcellus) was presented for painful defecation with a 24-hour history of hyporexia and intermittent episodes of rolling behavior. Upon presentation the patient was quiet, alert, and responsive, and mildly hypothermic. Abdominal palpation revealed an approximately 2-cm long oblong mass within the caudal abdomen. Abdominal radiographs revealed gastric dilation without volvulus and a peritoneal mass effect. The patient was euthanized following gastric reflux of brown malodorous fluid from his nares and oral cavity. A necropsy was performed and revealed a jejuno-jejunal intussusception causing mechanical gastrointestinal ileus, and gastric dilatation without volvulus. While non-obstructive gastrointestinal stasis is common and obstructive ileus is uncommon in guinea pigs, this report shows that intestinal intussusception is a differential in guinea pigs with ileus and gastric dilatation. PMID- 29038784 TI - Epistemology of Natural Strategies for Cardiac Tissue Repair. PMID- 29038783 TI - Seroprevalence of Schmallenberg virus and other Simbu group viruses among the Lebanese sheep. AB - In order to evaluate for the first time, the serological prevalence of Schmallenberg virus (SBV) and other Simbu group viruses in Lebanon, sheep originating from 15 Lebanese regions were sampled in September 2016. A total number of 750 serum samples from Awassi sheep were tested by ELISA for viral nucleoprotein antibodies. From the sampled animals, 122 animals were seropositive to SBV/Simbu group viruses. The seropositive sheep were mainly located in South Lebanon. At herd level, a seroprevalence of 53.33% was recorded in the Seven Lebanese governorates, whereas the animal level seroprevalence was 16.26%. The seroprevalence was negative in Mount-Lebanon. Despite that there was some serological evidence showed the presence of some Simbu group viruses in the Middle East, no study was done in Lebanon. In this study, we report for the first time the prevalence of SBV and other Simbu group viruses in Lebanon. PMID- 29038785 TI - Biological Function of MicroRNA193a-3p in Health and Disease. AB - MicroRNAs (miRNAs) are a class of small noncoding RNAs that act mainly as negative regulators of gene expression. Several studies demonstrated that miRNAs take part in numerous biological processes, such as proliferation, apoptosis, and migration. The dysregulation of miRNAs has been frequently observed in different types of disease, including cancer. Here, we provide a comprehensive review on the human miR-193a-3p by considering its role in both physiological and pathological contexts. Different mechanisms involved in regulating miR-193a-3p expression have been reported, including epigenetic modifications and transcription factors. In physiological contexts, miR-193a-3p seemed able to limit proliferation and cell cycle progression in normal cells. Remarkably, several publications demonstrated that miR-193a-3p acted as a tumor suppressor miRNA in cancer by targeting different genes involved in proliferation, apoptosis, migration, invasion, and metastasis. Furthermore, the downregulation of miR-193a-3p has been observed in many primary tumors and altered levels of circulating miR-193a-3p have been identified in serum or plasma of cancer patients and subjects affected by Parkinson's disease or by schizophrenia. In a clinical perspective, further studies are needed to explore the antitumor effects of the miR-193a-3p mimics delivery and the relevance of this miRNA detection as a possible diagnostic and prognostic biomarker. PMID- 29038787 TI - Comparative Proteomic Analysis of Paulownia fortunei Response to Phytoplasma Infection with Dimethyl Sulfate Treatment. AB - Paulownia fortunei is a widely cultivated economic forest tree species that is susceptible to infection with phytoplasma, resulting in Paulownia witches' broom (PaWB) disease. Diseased P. fortunei is characterized by stunted growth, witches' broom, shortened internodes, and etiolated and smaller leaves. To understand the molecular mechanism of its pathogenesis, we applied isobaric tags for relative and absolute quantitation (iTRAQ) and liquid chromatography coupled with tandem mass spectrometry approaches to study changes in the proteomes of healthy P. fortunei, PaWB-infected P. fortunei, and PaWB-infected P. fortunei treated with 15 mg.L-1 or 75 mg.L-1 dimethyl sulfate. We identified 2969 proteins and 104 and 32 differentially abundant proteins that were phytoplasma infection responsive and dimethyl sulfate responsive, respectively. Based on our analysis of the different proteomes, 27 PaWB-related proteins were identified. The protein protein interactions of these 27 proteins were analyzed and classified into four groups (photosynthesis-related, energy-related, ribosome-related, and individual proteins). These PaWB-related proteins may help in developing a deeper understanding of how PaWB affects the morphological characteristics of P. fortunei and further establish the mechanisms involved in the response of P. fortunei to phytoplasma. PMID- 29038786 TI - MicroRNAs as Biomarkers in Thyroid Carcinoma. AB - Optimal management of patients with thyroid cancer requires the use of sensitive and specific biomarkers. For early diagnosis and effective follow-up, the currently available cytological and serum biomarkers, thyroglobulin and calcitonin, present severe limitations. Research on microRNA expression in thyroid tumors is providing new insights for the development of novel biomarkers that can be used to diagnose thyroid cancer and optimize its management. In this review, we will examine some of the methods commonly used to detect and quantify microRNA in biospecimens from patients with thyroid tumor, as well as the potential applications of these techniques for developing microRNA-based biomarkers for the diagnosis and prognostic evaluation of thyroid cancers. PMID- 29038788 TI - Urinary Exosomal MicroRNA Profiling in Incipient Type 2 Diabetic Kidney Disease. AB - BACKGROUND: Albuminuria is an early sign but not a strong predictor of diabetic kidney disease (DKD). Owing to their high stability, urinary exosomal miRNAs can be useful predictors of the progression of early-stage DKD to renal failure; fluid biopsies are ideal for detecting abnormalities in these miRNAs. The aim of this study was to identify novel differentially expressed miRNAs as urine biomarkers for type 2 DKD by comparing between patients of type 2 diabetes (T2D) with and without macroalbuminuria. METHODS: Ten patients with T2D, including five who had no renal disease and five with macroalbuminuria (DKD G1-2A3), were selected for this study. Exosome- (UExo-) derived miRNA profiles were used to identify candidate biomarkers, a subset of which was verified using quantitative reverse transcription PCR. RESULTS: A total of 496 UExo-derived miRNA species were found to be differentially expressed (>2-fold) in patients with DKD, compared to those with T2D. A validation analysis revealed that three miRNAs (miR 362-3p, miR-877-3p, and miR-150-5p) were upregulated and one (miR-15a-5p) was downregulated. These miRNAs might regulate DKD through p53, mTOR, and AMPK pathways. CONCLUSIONS: In conclusion, UExo-derived miRNAs were altered in type 2 DKD. MiR-362-3p, miR-877-3p, miR-150-5p, and miR-15a-5p might be novel biomarkers for incipient DKD. PMID- 29038789 TI - Diosgenin, a Novel Aldose Reductase Inhibitor, Attenuates the Galactosemic Cataract in Rats. AB - OBJECTIVE: To seek efficient aldose reductase inhibitors (ARIs) with excellent in vitro and in vivo biological activities against rat galactosemic cataract. METHODS: The method was firstly optimized to screen strong ARIs from nonoriented synthetic compounds and natural extracts. Then, diosgenin was assessed on osmotic expansion of primarily cultured lens epithelial cells (LECs) induced by galactose (50 mM). Diosgenin was administered to galactosemic rats by oral (100 and 200 mg/kg) or direct drinking (0.1%) to evaluate its anticataract effects. RESULTS: Diosgenin was found as the strongest ARI with IC50 of 4.59 * 10-6 mol/L. Diosgenin (10 MUM) evidently inhibited the formation of tiny vacuoles and upregulation of AR mRNA in LECs. In vivo, diosgenin delayed lens opacification, inhibited the increase of ratio of lens weight to body weight, and decreased AR activity, galactitol level, and AR mRNA expression, especially in the diosgenin drinking (0.1%) group. CONCLUSIONS: Diosgenin was an efficient ARI, which not only significantly decreased the LECs' osmotic expansion in vitro but also markedly delayed progression of rat galactosemic cataract in vivo. Thus, diosgenin rich food can be recommended to diabetic subjects as dietary management to postpone the occurrence of sugar cataract, and diosgenin deserves further investigation for chronic diabetic complications. PMID- 29038790 TI - db/db Mice Exhibit Features of Human Type 2 Diabetes That Are Not Present in Weight-Matched C57BL/6J Mice Fed a Western Diet. AB - To understand features of human obesity and type 2 diabetes mellitus (T2D) that can be recapitulated in the mouse, we compared C57BL/6J mice fed a Western-style diet (WD) to weight-matched genetically obese leptin receptor-deficient mice (db/db). All mice were monitored for changes in body composition, glycemia, and total body mass. To objectively compare diet-induced and genetic models of obesity, tissue analyses were conducted using mice with similar body mass. We found that adipose tissue inflammation was present in both models of obesity. In addition, distinct alterations in metabolic flexibility were evident between WD fed mice and db/db mice. Circulating insulin levels are elevated in each model of obesity, while glucagon was increased only in the db/db mice. Although both WD fed and db/db mice exhibited adaptive increases in islet size, the db/db mice also displayed augmented islet expression of the dedifferentiation marker Aldh1a3 and reduced nuclear presence of the transcription factor Nkx6.1. Based on the collective results put forth herein, we conclude that db/db mice capture key features of human T2D that do not occur in WD-fed C57BL/6J mice of comparable body mass. PMID- 29038792 TI - Neuroanatomical Relationships between Orexin/Hypocretin-Containing Neurons/Nerve Fibers and Nicotine-Induced c-Fos-Activated Cells of the Reward-Addiction Neurocircuitry. AB - Orexin/hypocretin-containing neurons in lateral hypothalamus (LH) are implicated in the neurobiology of nicotine addiction. However, the neuroanatomical relationships between orexin-neurons/nerve fibers and nicotine-activated cells within the reward-addiction neurocircuitry is not known. In the present study in mice, we first used c-Fos immunohistochemistry to identify CNS cells stimulated by an acute single injection of nicotine (NIC, 2 mg/kg, IP). Sequential double labelling was then performed to identify the location of orexin-containing neurons and nerve fibers with respect to NIC-induced c-Fos activated cells and/or tyrosine hydroxylase (TH) immunoreactive (IR) cells of the mesocorticolimbic reward-addiction pathways. Orexin-IR nerve fibers and terminals were detected at multiple sites of the NIC reward-addiction circuitry in close apposition to, and intermingled with, NIC-induced c-Fos-IR cells of locus coeruleus (LC), ventral tegmental area (VTA), nucleus accumbens (Acb), LH and paraventricular thalamic nucleus (PVT). Double-labelling of orexin with TH showed frequent contact between orexin-IR nerve fibers and noradrenergic cells of LC. However, there was infrequent contact between the orexinergic fibers and the TH-expressing dopaminergic cells of VTA, dorsal raphe nucleus (DR), posterior hypothalamus (DA11), arcuate hypothalamic nucleus (DA12) and periventricular areas (DA14). The close anatomical contact between orexinergic nerve fibers and NIC-activated cells at multiple sites of the reward-addiction pathways suggests that orexinergic projections from LH are likely to be involved in modulating activity of the neurons that are directly impacted by acute administration of nicotine. PMID- 29038791 TI - Traditional Chinese Medicine Protects against Cytokine Production as the Potential Immunosuppressive Agents in Atherosclerosis. AB - Atherosclerosis is a chronic inflammatory disease caused by dyslipidemia and mediated by both innate and adaptive immune responses. Inflammation is a critical factor at all stages of atherosclerosis progression. Proinflammatory cytokines accelerate atherosclerosis progression, while anti-inflammatory cytokines ameliorate the disease. Accordingly, strategies to inhibit immune activation and impede immune responses towards anti-inflammatory activity are an alternative therapeutic strategy to conventional chemotherapy on cardiocerebrovascular outcomes. Since a number of Chinese medicinal plants have been used traditionally to prevent and treat atherosclerosis, it is reasonable to assume that the plants used for such disease may suppress the immune responses and the resultant inflammation. This review focuses on plants that have immunomodulatory effects on the production of inflammatory cytokine burst and are used in Chinese traditional medicine for the prevention and therapy of atherosclerosis. PMID- 29038794 TI - Biomaterials-based In Situ Tissue Engineering. PMID- 29038793 TI - Mechanisms of Cell Polarization. AB - Cell polarization is a key step in the migration, development, and organization of eukaryotic cells, both at the single cell and multicellular level. Research on the mechanisms that give rise to polarization of a given cell, and organization of polarity within a tissue has led to new understanding across cellular and developmental biology. In this review, we describe some of the history of theoretical and experimental aspects of the field, as well as some interesting questions and challenges for the future. PMID- 29038797 TI - Anthocyanin profile, antioxidant activity and enzyme inhibiting properties of blueberry and cranberry juices: a comparative study. AB - Cranberry (Vaccinium macrocarpon) and blueberry (Vaccinium myrtillus) juices are commonly consumed as a source of antioxidants. The aim of this study was to compare bioactivities as well as the differences in the polyphenol content and anthocyanin profile of both juices. Polyphenol and anthocyanin contents were quantified using spectrophotometric and chromatographic methods. Bioassays were carried out in terms of antioxidant properties in cell and cell free systems as well as inhibition of physiological enzymes that are targets involved in the prevention of chronic diseases (monoamine oxidase A, tyrosinase, acetylcholinesterase, alpha-glucosidase and dipeptidyl peptidase-4). Both juices contained a significant amount of anthocyanins (3.909 mg anthocyanins per mg extract for blueberry juice and 0.398 for cranberry juice) and also exhibited antioxidant properties against DPPH, superoxide radicals and hydrogen peroxide. These juices showed inhibitory effects on the enzymes, showing substantial potential as antioxidant, neuroprotective and anti-hyperglycaemic agents. The total anthocyanin and polyphenol content was higher in blueberry juice, which is indicative of a higher antioxidant activity. Both juices were also able to inhibit monoamine oxidase A, tyrosinase, alpha-glucosidase and dipeptidyl peptidase-4 in a dose-dependent manner. However, cranberry juice had a greater capacity than blueberry juice as an alpha-glucosidase inhibitor, revealing a similar activity to acarbose. PMID- 29038796 TI - Serious Adverse Events with Bevacizumab or Ranibizumab for Age-related Macular Degeneration: Meta-analysis of Individual Patient Data. AB - TOPIC: A comparison between ranibizumab and bevacizumab of the incidence of systemic serious adverse events (SAEs) among patients with neovascular age related macular degeneration (nAMD) who participated in a large-scale randomized trial. Use of individual patient data, rather than aggregate data, allowed adjustment for strong predictors of SAEs. CLINICAL RELEVANCE: Relative safety of ranibizumab and bevacizumab is important in choosing an anti-VEGF drug for the hundreds of thousands of patients with nAMD treated each year worldwide. METHODS: Results of a Cochrane aggregate meta-analysis of the relative efficacy and safety of bevacizumab and ranibizumab that used searches of bibliographic databases and clinical trial registries as of March 14, 2014 and hand searching were reviewed to identify 6 large-scale, multicenter clinical trials. Individual patient data on SAEs, assigned drug and dosing regimen, and baseline prognostic factors were requested from the leaders of the 6 trials. A two-stage approach was used to estimate relative risks and 95% confidence intervals (CIs) from Cox proportional hazards models adjusting for baseline prognostic factors. The primary outcome measure was development of >=1 SAE; secondary outcome measures were death, arteriothrombotic events, events associated with systemic anti-VEGF therapy, and events not associated with systemic anti-VEGF therapy. RESULTS: Individual patient data were received from 5 trials to provide information on 3052 patients. There were no large imbalances between drug groups on baseline factors. The adjusted relative risk (95% CI) for bevacizumab relative to ranibizumab was 1.06 [(0.84, 1.35); p=0.61] for >=1 SAEs. For secondary outcomes, adjusted relative risks were 0.99 [ (0.69, 1.43); p=0.97] for death, 0.89 [ (0.62, 1.28); p=0.53] for arteriothrombotic events, 1.10 [ (0.81, 1.50); p=0.54] for events related to anti-VEGF treatment, and 1.11 [ (0.87, 1.40); p=0.40] for events not related to anti-VEGF treatment. CONCLUSION: Our findings support the absence of large differences in risk of systemic serious adverse events between these two anti VEGF drugs; i.e., relative risks of >=1.5 are unlikely. Because additional head to-head trials are unlikely, any further investigation of differential risk between anti-VEGF agents will only be achieved though post-marketing surveillance or through the interrogation of healthcare databases. PMID- 29038798 TI - Quantum and quasiclassical trajectory studies of rotational relaxation in Ar-N2+ collisions. AB - The collision of N2+ with Ar is studied using quantum and classical methods. The dynamics was followed on a new potential energy surface based on ab initio energies computed at the UCCSD(T)-F12a/aug-cc-pVTZ level, using the correct analytical long range behaviour and a reproducing kernel representation. Comparison with multi-reference MRCI+Q calculations establish that UCCSD(T)-F12a is a sufficiently high level of theory for this problem. Results from quantum close coupling and quasiclassical trajectory calculations agree favourably with each other and the rates for inelastic collisions are lower than those from Langevin theory. This differs from previous calculations on a zero point corrected potential energy surface (PES) and indicates that such corrections, although potentially useful, should not be applied in the present case. Despite the rather large differences between the potential energy surfaces, the computed rates are within one order of magnitude of one another which suggests that the quality of the PES is not the main reason for the remaining disagreement between computation and experiment. Also, the fraction of inelastic rotational collisions exceeds 20% in all cases irrespective of whether quantum or classical dynamics is used. Previous experimental rate coefficients for N2+(nu = 0, j = 6) colliding with Ar suggest that the rotational quantum number is largely conserved. This can not be confirmed from any of the simulations and calls for new single molecule experiments. PMID- 29038802 TI - Viscous forces and bulk viscoelasticity near jamming. AB - When weakly jammed packings of soft, viscous, non-Brownian spheres are probed mechanically, they respond with a complex admixture of elastic and viscous effects. While many of these effects are understood for specific, approximate models of the particles' interactions, there are a number of proposed force laws in the literature, especially for viscous interactions. We numerically measure the complex shear modulus G* of jammed packings for various viscous force laws that damp relative velocities between pairs of contacting particles or between a particle and the continuous fluid phase. We find a surprising sensitive dependence of G* on the viscous force law: the system may or may not display dynamic critical scaling, and the exponents describing how G* scales with frequency can change. We show that this sensitivity is closely linked to manner in which viscous damping couples to floppy-like, non-affine motion, which is prominent near jamming. PMID- 29038795 TI - Immune engineering: from systems immunology to engineering immunity. AB - The smallpox vaccine represents the earliest attempt in engineering immunity. The recent success of chimeric antigen receptor T cells (CAR-T cells) in cancer once again demonstrates the clinical potential of immune engineering. Inspired by this success, diverse approaches have been used to boost various aspects of immunity: engineering dendritic cells (DCs), natural killer (NK) cells, T cells, antibodies, cytokines, small peptides, and others. With recent development of various high-throughput technologies (of which engineers, especially biomedical engineers/bioengineers contributed significantly), such as immune repertoire sequencing, and analytical methods, a systems level of understanding immunity (or the lack of it) beyond model animals has provided critical insights into the human immune system. This review focuses on recent progressed made in systems biology and the engineering of adaptive immunity. PMID- 29038804 TI - Insights into the interfacial structure-function of poly(ethylene glycol) decorated peptide-stabilised nanoscale emulsions. AB - The interfacial properties of nanoscale materials have profound influence on biodistribution and stability as well as the effectiveness of sophisticated surface-encoded properties such as active targeting to cell surface receptors. Tailorable nanocarrier emulsions (TNEs) are a novel class of oil-in-water emulsions stabilised by molecularly-engineered biosurfactants that permit single pot stepwise surface modification with related polypeptides that may be chemically conjugated or genetically fused to biofunctional moieties. We have probed the structure and function of poly(ethylene glycol) (PEG) used to decorate TNEs in this way. The molecular weight of PEG decorating TNEs has considerable impact on the zeta-potential of the emulsion particles, related to differential interfacial thickness of the PEG layer as determined by X-ray reflectometry. By co-modifying TNEs with an antibody fragment, we show that the molecular weight and density of PEG governs the competing parameters of accessibility of the targeting moiety and of shielding the interface from non-specific interactions with the environment. The fundamental understanding of the molecular details of the PEG layer that we present provides valuable insights into the structure function relationship for soft nanomaterial interfaces. This work therefore paves the way for further rational design of TNEs and other nanocarriers that must interact with their environment in controlled and predictable ways. PMID- 29038805 TI - "Switching on" the single-molecule magnet properties within a series of dinuclear cobalt(iii)-dysprosium(iii) 2-pyridyloximate complexes. AB - The use of 2-pyridinealdoxime (paoH), methyl 2-pyridyl ketone oxime (mepaoH), phenyl 2-pyridyl ketone oxime (phpaoH) and pyridine-2-amidoxime (NH2paoH) for the synthesis of dinuclear CoIII/DyIII complexes is described in the absence or presence of an external base. Complexes [CoDy(pao)3(NO3)3] (1), [CoDy(mepao)3(NO3)3] (2), [CoDy(phpao)3(NO3)3] (3) and [CoDy(NH2pao)3(NO3)3].3MeOH (4.3MeOH) have been isolated and their structures have been determined by single-crystal X-ray crystallography. The complexes crystallize in non-centrosymmetric (2, 3) or centrosymmetric (1, 4.3MeOH) trigonal space groups and form a family of triply-oximate bridged dinuclear Co(iii)-Dy(iii) complexes. The crystals of 1, 3 and 4.3MeOH contain mixtures of Delta and Lambda enantiomers, whereas complex 2 is enantiomerically pure (Lambda). A 3-fold crystallographic axis (C3) passes through two metal ions in all complexes. The low-spin CoIII and DyIII ions are bridged by three oximate groups belonging to the eta1:eta1:eta1:MU 2-pyridyloximate ligands. The CoIII centre is octahedrally coordinated by the six nitrogen atoms of the deprotonated organic ligands in a facial arrangement. The DyIII centre is bound to an O9 set of donor atoms, its coordination sphere being completed by three bidentate chelating nitrato groups. The coordination polyhedron around DyIII in 1 is best described as the Johnson tricapped trigonal prism, while the coordination geometries of the DyIII centres in 2, 3 and 4.3MeOH are best described as consisting of spherical tricapped trigonal prismatic coordination polyhedra. The spectroscopic data of the complexes are also reported and discussed in the infra red region in terms of the coordination modes of the ligands involved. The magnetic properties of these complexes were studied between 300 and 1.8 K revealing mainly the depopulation of the DyIIImj sublevels of the ground 6H15/2 state. The intrinsic magnetic anisotropy of the DyIII centers is clearly observed by the non-superimposed magnetization (M) versus H/T data, but single-molecule magnet (SMM) properties were detected only for the mepao--containing complex 2. The origin of these properties in 2 is critically discussed and supported by computational studies. PMID- 29038806 TI - Kinetics of volatile impurity removal from silicon by electron beam melting for photovoltaic applications. AB - A full domain control model is established for impurity transportation in the liquid phase, gas-liquid interface and gas phase of silicon to analyze the dynamic mechanics of impurity removal. The results show that the overall mass transfer coefficient mainly depends on the temperature and the chamber pressure. Its value increases with the increase of temperature or the decrease of chamber pressure. Under the same melting condition, the order of the overall mass transfer coefficients for P, Al and Ca is kP > kAl > kCa, indicating that P is easier to remove by evaporation. Mass transfer in the gas phase is the rate controlling step for volatile impurity removal at the temperature above the melting point of silicon. The rate-controlling step transits to evaporation on the gas-liquid interface then to mass transfer in the liquid boundary layer as the temperature increases. During electron beam melting, the removal of P is controlled by both evaporation on the gas-liquid interface and mass transfer in the liquid boundary layer, and the removal of Al and Ca is controlled by evaporation on the gas-liquid interface. PMID- 29038807 TI - High thermoelectric performances of monolayer SnSe allotropes. AB - alpha-SnSe is one of the most promising thermoelectric materials with low thermal conductivity and a high power factor. Since the thermoelectric properties of a material have a strong dependence on its crystal structure, we study the energetic and thermoelectric properties of four new monolayer phases of SnSe (beta, gamma, delta and epsilon) together with alpha-SnSe using the ab initio density functional theory method. The calculated electronic structures show that all five phases are semiconductors with different band gaps. The alpha, beta, gamma, and delta phases have an indirect band gap with the hybridization of sp2 orbitals, whereas the epsilon phase has a direct band with the hybridization of sp3 orbitals. The thermoelectric transport properties and coefficients are obtained from the electronic structure using semi-classical Boltzmann theory, and the results indicate that the four new phases of SnSe (beta, gamma, delta and epsilon) all have better thermoelectric properties compared with the reported alpha phase. The predicted ZT value for the beta-SnSe phase is 2.06 at 300 K, suggesting that it has great potential for novel thermoelectric applications. PMID- 29038808 TI - Decoration of trastuzumab with short oligonucleotides: synthesis and detailed characterization. AB - Trastuzumab (Herceptin(r)) is an FDA-approved therapeutic antibody currently employed in the treatment of metastatic stages of breast cancer. Herein, we propose a simple, fast and cost-effective methodology to conjugate trastuzumab with 22-mer 5' thiol-modified oligonucleotides using a bifunctional crosslinker. The conjugates were successfully characterized by MALDI-ToF MS and SDS-PAGE, obviating the need for enzymatic digestion and difficult chromatographic separations. Furthermore, ELISA was performed to ensure that trastuzumab activity is not affected by oligonucleotide conjugation. PMID- 29038809 TI - Selenoureas for anion binding as molecular logic gates. AB - The first example of a molecular logic gate based on selenourea/anion host-guest interaction that performs a ternary logic operation using an 1H-NMR easy to read response output is described here. Selenoureas are very versatile receptors for anion binding, capable of forming both mono- and bi-coordinated adducts at room temperature in solution. PMID- 29038810 TI - Planarization of B20 clusters by Si and C atom substitution. AB - An optimization strategy combining a global semi-empirical quantum mechanical search and all-electron density functional theory was adopted to determine the lowest energy structures of B19Si and B19C clusters. The planarization of a B20 cluster by Si and C atom substitution was observed. The structural transition was from the double-ring tubular B20 to an almost perfect planar B19Si and a quasi planar bowl B19C. B19Si possessed a geometry with a central B atom surrounded by a six-membered ring and a 13-atom outer ring. B19C adopted a geometry with a B5C six-membered hole. Both Si and C atoms occupied peripheral positions. The observed planarization may be attributed to sp2 hybridization, changes in the peripheral bonding, and structural mechanics. Some properties, including the HOMO LUMO gaps, on-site charge on Si and C atoms, and deformed charge distribution, were discussed. PMID- 29038811 TI - Model-averaging of ab initio spectra for the absolute configuration assignment via vibrational circular dichroism. AB - Vibrational absorption and vibrational circular dichroism spectra (VA and VCD) have been recorded for two hybrid isoindolinone-phtalide stereoisomers dissolved in CDCl3. Density-functional calculations have been performed to determine their absolute configuration. A comparison of calculated and measured values has been made using several goodness-of-fit indicators, and also introducing a model averaging technique, taking into account the variation of calculated spectra with the details of the computational method. The model-averaging technique, preliminarily tested on two VCD spectra already assigned to two diastereomers of tadalafil, gives higher credibility to the ab initio calculations, and should be useful for other molecules with high flexibility and/or more than one stereogenic center. PMID- 29038812 TI - Sonogashira (Cu and amine free) and Suzuki coupling in air catalyzed via nanoparticles formed in situ from Pd(ii) complexes of chalcogenated Schiff bases of 1-naphthaldehyde and their reduced forms. AB - The reaction of 1-naphthaldehyde with 2-(phenylthio/seleno)ethylamine afforded air- and moisture-insensitive Schiff bases: C10H7-1-CH[double bond, length as m dash]N-CH2CH2EPh (L1: E = S; L2: E = Se). Then, on treatment with NaOAc and Li2PdCl4, palladacycles, [Pd(L1-H/L2-H)Cl] (1/2) were formed at room temperature, in which L1/L2 are ligated as an unsymmetric (C-, N, E) pincer. The reduction of >C[double bond, length as m-dash]N bonds of L1 and L2 with sodium borohydride gave C10H7-1-CH2NH-CH2CH2EPh (L3: E = S; L4: E = Se). The reactions of L3/L4 at room temperature, similar to those of L1/L2, resulted in the formation of complex [Pd(L3/L4)Cl2] (3/4), in which the ligand is coordinated in a bidentate (N, E) mode. The yield of all the complexes was >85%. Characterization by HR-MS, 1H, 13C{1H} and 77Se{1H} NMR spectra of L1-L4 and their complexes 1-4 were performed. The structures of L1 and 1-4 were established with single-crystal X-ray diffraction. In all the complexes, the geometry of palladium was distorted square planar. The Pd-S bond distances in 1 and 3 were 2.426(12) and 2.259(2) A, respectively, whereas Pd-Se bond lengths (A) were 2.523(11) (2) and 2.369(10) (4) A. The catalytic activities of 1-4 were explored for copper- and amine-free Sonogashira and Suzuki-Miyaura coupling (SMC) of aryl halides under aerobic conditions. The amount of catalyst required for achieving good conversion was 0.01 and 0.05 mol% for SMC and Sonogashira coupling, respectively. The conversion of some substrates reached a maximum in 1 and 2 h for Sonogashira coupling and SMC, respectively. The palladacycles as catalysts gave good conversion efficiency. The generation of palladium-containing nanoparticles (NPs) during both coupling reactions was observed. These were isolated and HR-TEM studies were performed on them and revealed their size as ~2-7 nm. The SEM-EDX analysis indicated the presence of organochalcogen ligands or their fragments in the samples. They independently catalyzed both reactions. Therefore, the role of 1-4 in catalysis undoubtedly exists. For Sonogashira coupling, the formation and role of such Pd-based NPs under aerobic conditions were observed for the first time. The complexes 1-4 showed the potential for reuse, as in the eighth cycle, conversion dropped by only 20%. PMID- 29038813 TI - Targeted tumor SPECT/CT dual mode imaging using multifunctional RGD-modified low generation dendrimer-entrapped gold nanoparticles. AB - Multifunctional low-generation dendrimer-entrapped gold nanoparticles (Au DENPs) were designed and synthesized. The formed Au DENPs modified with an arginine glycine-aspartic peptide and labeled with 99mTc possess a uniform size distribution, desirable colloidal stability and biocompatibility, and can be used as a promising nanoprobe for targeted SPECT/CT imaging of alphavbeta3 integrin expressing tumors. PMID- 29038814 TI - Selective cytotoxicity and luminescence imaging of cancer cells with a dipicolinato-based EuIII complex. AB - Four new species [Ln(dipicNH2)3]3- (Ln = LaIII, EuIII, GdIII, TbIII), with the ligand dipicNH22- (dipic = dipicolinato), were synthesized. Incubation of the EuIII complex with glioma NG97 and pancreatic cancer PANC1 cells showed that it penetrates the cell membrane and can be used to image the cells, while also being moderately cytotoxic. PMID- 29038816 TI - Ruthenium-catalysed sigma-activation for remote meta-selective C-H functionalisation. AB - The search for selective C-H functionalisation has enabled some of the most elegant techniques in modern catalysis. Herein, we review the rapidly expanding field of ruthenium catalysed sigma-activation as a tool in the selective meta-C-H functionalisation of arenes. PMID- 29038817 TI - Silver-induced self-immolative Cl-F exchange fluorination of arylsulfur chlorotetrafluorides: synthesis of arylsulfur pentafluorides. AB - A novel strategy for the synthesis of arylsulfur pentafluorides by silver carbonate-induced Cl-F exchange fluorination of arylsulfur chlorotetrafluorides is reported. This fluorination does not require any exogenous fluoride sources. Rather, the reaction proceeds via the self-immolation of the substrate Ar-SF4Cl. PMID- 29038815 TI - Distinct oligomerization and fibrillization dynamics of amyloid core sequences of amyloid-beta and islet amyloid polypeptide. AB - A direct observation of amyloid aggregation from isolated peptides to cross-beta fibrils is crucial for understanding the nucleation-dependence process, but the corresponding macroscopic timescales impose a major computational challenge. Using rapid all-atom discrete molecular dynamics simulations, we capture the oligomerization and fibrillization dynamics of the amyloid core sequences of amyloid-beta (Abeta) in Alzheimer's disease and islet amyloid polypeptide (IAPP) in type-2 diabetes, namely Abeta16-22 and IAPP22-28. Both peptides and their mixture spontaneously assemble into cross-beta aggregates in silico, but follow distinct pathways. Abeta16-22 is highly aggregation-prone with a funneled free energy basin toward multi-layer beta-sheet aggregates. IAPP22-28, on the other hand, features the accumulation of unstructured oligomers before the nucleation of beta-sheets and growth into double-layer beta-sheet aggregates. In the presence of Abeta16-22, the aggregation of IAPP22-28 is promoted by forming co aggregated multi-layer beta-sheets. Our study offers a detailed molecular insight to the long-postulated oligomerization-nucleation process in the amyloid aggregations. PMID- 29038818 TI - A C-HCR assembly of branched DNA nanostructures for amplified uracil-DNA glycosylase assays. AB - An autonomous nonenzymatic DNA machine has been successfully engineered based on a two-layered cascaded hybridization chain reaction (C-HCR) circuit, in which the tandem outputs of the upstream HCR-1 unit activate the downstream HCR-2 unit to induce successive repeated hybridizations, generating branched DNA structures and enabling sensitive and selective detection of uracil-DNA glycosylase and its inhibitors. PMID- 29038819 TI - Over two-orders of magnitude enhancement of the photocatalytic hydrogen evolution activity of carbon nitride via mediator-free decoration with gold-organic microspheres. AB - A mediator and Pt free photocatalytic system is created for H2 production over AuNPs/g-C3N4 hybrids under visible light irradiation. In contrast to pure g-C3N4 and state-of-the-art 3 wt% Pt loaded g-C3N4, ingeniously decorating minute AuNPs onto g-C3N4 can enhance the catalytic activity by about 348 and 25 times, respectively. PMID- 29038820 TI - [Primary spontaneous pneumothorax : Is there an impact of weather conditions?] PMID- 29038821 TI - [Lower right abdominal pain and anal bleeding : A rare cause for nonspecific complaints]. PMID- 29038822 TI - [An unusual cause of jejunal obstruction]. PMID- 29038823 TI - Left ventricular twist in hypertrophic cardiomyopathy : Predictor of nonsustained ventricular tachycardia. AB - BACKGROUND: We investigated the efficacy of clinical and classic echocardiographic parameters in predicting the occurrence of nonsustained ventricular tachycardia (NsVT) in patients with hypertrophic cardiomyopathy (HCM). METHODS: The study comprised 59 patients with HCM (47 male, [80%]; mean age, 48.48 +/- 14.16 years). Clinical, electrocardiographic, as well as classic two-dimensional and speckle-tracking echocardiography (STE) data were collected. All patients had Holter monitoring within 24-72 h of the echocardiographic examination. NsVT was defined as three or more consecutive premature wide QRS complexes with a heart rate of > 100 bpm. The patient population was categorized into groups based on the occurrence or absence of NsVT on the 24-h Holter recordings. RESULTS: NsVT was observed in 17 patients (29%). In these patients, higher twist (14.4 +/- 3.8 vs.18 +/- 7.9; p = 0.02), higher apical rotation (8.7 +/- 4.2 vs. 12.2 +/- 7; p = 0.02), higher sudden cardiac death risk score (4.4 +/ 2.2 vs. 7 +/- 3.3; p = 0.007), and decreased global longitudinal peak strain (GLPS; -12.8 +/- 3.1 vs. -10.6 +/- 2.8; p = 0.014) were observed. In the multivariate logistic regression analysis, including GLPS and twist, GLPS (Odds Ratio [OR]: 1.406; 95% CI: 1.087-1.818; p = 0.009) and twist (OR: 1.236; 95% CI: 1.056-1.446; p = 0.008) were found to be independent predictors of NsVT. In the receiver operating characteristic curve analysis, GLPS < -11.9% predicted NsVT with 82% sensitivity and 60% specificity (area under the curve [AUC]: 0.70; p = 0.014) and twist > 15.2 degrees predicted NsVT with 70% sensitivity and 58% specificity (AUC: 0.69; p = 0.027). CONCLUSION: Decreased GLPS and increased twist were predictive of NsVT in HCM patients. Parameters that can easily be measured with STE can help detect patients who may develop arrhythmia. PMID- 29038824 TI - Memantine add-on to clozapine treatment for residual negative symptoms of schizophrenia. PMID- 29038825 TI - Detection system for Saccharomyces cerevisiae with phenyl acrylic acid decarboxylase gene (PAD1) and sulphur efflux gene (SSU1) by multiplex PCR. AB - Production of wine with selected yeast strains is a common enological practice followed for the production of wine with desirable organoleptic properties and to guarantee the homogeneity of successive vintages. Sulphur dioxide tolerance and phenyl acrylic acid resistance are the enological traits essential for the survivability of the yeast during fermentation. The present study describes the detection of S. cerevisiae with enological traits, such as phenyl acrylic acid resistance and sulphur dioxide tolerance in a single test. Phenyl acrylic acid decarboxylase (PAD1) and sulphite efflux genes (SSU1) were detected by multiplex PCR, thus confirming the specificity of primers. A single cocktail of all reagents required for the simultaneous detection of both these genes was designed. The ready-to-use formulation optimized was stable at 4 and - 20 degrees C for 6 months. The amplification of phenyl acrylic acid decarboxylase and sulphite efflux genes, validated the suitability of the ready-to-use formulation for the detection of S. cerevisiae in food samples. The ready-to-use formulation optimized, minimizes the end user requirements for the detection of S. cerevisiae. Thus, the method was suitable for the identification of S. cerevisiae strains from a mixture of yeast prior to the sequencing analysis, thereby reducing the cost and time of screening. PMID- 29038826 TI - Compartment Pressure Monitoring After Thyroid Surgery: A Possible Method to Detect a Rebleeding: Reply. PMID- 29038828 TI - Using the WHO Surgical Safety Checklist to Direct Perioperative Quality Improvement at a Surgical Hospital in Cambodia: The Importance of Objective Confirmation of Process Completion. AB - BACKGROUND: The WHO surgical safety checklist (SSC) is known to prevent postoperative complications; however, strategies for effective implementation are unclear. In addition to cultural and organizational barriers faced by high-income countries, resource-constrained settings face scarcity of durable and consumable goods. We used the SSC to better understand barriers to improvement at a trauma hospital in Battambang, Cambodia. METHODS: We introduced the SSC and trained data collectors to observe surgical staff performing the checklist. Members of the research team observed cases and data collection. After 3 months, we modified the data collection tool to focus on infection prevention and elicit more accurate responses. RESULTS: Over 16 months we recorded data on 695 operations (304 cases using the first tool and 391 cases with the modified tool). The first tool identified five items as being in high compliance, which were then excluded from further assessment. Two items-instrument sterility confirmation and sponge counting-were identified as being misinterpreted by the data collectors' tool. These items were reworded to capture objective assessment of task completion. Confirmation of instrument sterility was initially never performed but rectified to >95% compliance; sponge counting and prophylactic antibiotic administration were consistently underperformed. CONCLUSIONS: Staff complied with communication elements of the SSC and quickly adopted process improvements. The wording of our data collection tool affected interpretation of compliance with standards. Material resources are not the primary barrier to checklist implementation in this setting, and future work should focus on clarification of protocols and objective confirmation of tasks. PMID- 29038829 TI - The Brain Drain Myth: Retention of Specialist Surgical Graduates in East, Central and Southern Africa, 1974-2013. AB - BACKGROUND: This study assesses the retention of specialist surgical graduates from training programmes across eight countries in East, Central and Southern Africa from 1974 to 2013. It addresses the gap in existing data by analysing retention rates of surgical graduates by comparing graduating institution to current location. Data were assessed by country, region, specialty and gender with a view to informing national and regional healthcare and education strategies. METHODS: Twenty-five institutions train surgeons in the ten countries covered by the College of Surgeons of East, Central and Southern Africa (COSECSA) 24 Universities and the College itself. These institutions were requested in November 2014 to supply details of graduates from their postgraduate surgical training programmes. Complete graduate lists were returned by the College and 14 universities by March 2016. These surgical graduates were compared against the database of current practising surgeons in the region held by COSECSA. Data were cross-checked against medical council registers, surgical society records, and with members and fellows of COSECSA. RESULTS: Data were incomplete for 126 surgical graduates. Of the remaining 1038 surgical graduates, 85.1% were retained in the country they trained in, while 88.3% were retained within the COSECSA region. Ninety-three per cent (93.4%) were retained within Africa. Of the eight countries, Malawi had the highest retention rate with 100% of surgical graduates remaining in country, while Zimbabwe had the lowest rate with 65.5% remaining. CONCLUSION: High surgical graduate retention rates across the region indicate that the expansion of national surgical training initiatives is an effective solution to addressing the surgical workforce shortage in East, Central and Southern Africa and counters long-held arguments regarding brain drain in this region. PMID- 29038827 TI - Is Routine Intraoperative Contrast-Enhanced Ultrasonography Useful During Whole Liver Transplantation? AB - BACKGROUND: Vascular complications following liver transplantation (LT) may result from technical deficiencies. Intraoperative diagnosis remains challenging but can prevent serious delayed complications. Intraoperative Doppler ultrasonography (IOUS) represents the gold standard for imaging, although it requires radiological skills. Contrast-enhanced ultrasonography has been reported during postoperative assessments, but never intraoperatively (CE-IOUS). The aim of this study was to assess the feasibility of routine CE-IOUS, to evaluate its impact on surgical strategy and its usefulness. METHODS: All 553 whole LTs performed in our tertiary centre between 01/2010 and 12/2014 were reviewed. We compared perioperative outcomes and long-term survival in IOUS (n = 370) versus CE-IOUS (n = 103) groups. Secondarily, the seven cases where the two imaging findings conflicted (CE+ Group) were matched 1:2 and compared with an exclusively IOUS procedure (CE- Group, n = 14) to assess the consequences of a specific CE guided strategy. RESULTS: CE-IOUS assessments were successful in 100% of cases, without any adverse effects. Vascular complications and patient/graft survival rates were identical in the IOUS and CE-IOUS groups (p = 0.65, 0.95 and 0.86, respectively). CE-IOUS confirmed IOUS findings in 93% of cases (n = 96) and led to the realization of an additional procedure (median arcuate ligament lysis) and six conservative strategies despite poor arterial (n = 5) or venous flow (n = 1) under Doppler analysis. The CE+ and CE- groups presented statistically identical perioperative and long-term outcomes. CONCLUSION: This study demonstrated the feasibility of CE-IOUS during whole LT. However, we failed to demonstrate any advantages of CE-IOUS over IOUS. Therefore, IOUS currently remains the gold standard imaging technique for the intraoperative assessment of vascular patency. PMID- 29038830 TI - A Distance Blended Learning Program to Upgrade the Clinical Competence of District Non-doctor Anesthesia Providers in Nepal. AB - BACKGROUND: Across Nepal, anesthesia at a district level is provided mostly by non-doctor anesthesia providers (anesthesia assistants-AAs). Nepal's Government recognized the need to sustain competence with continuous professional development and to upgrade 6-month trained working AAs to professional equivalence with the new national standard of 12-month training. As they are essential district health workers and AA clinical training sites are full, an innovative distance blended learning, competency-based, upgrade 1-year course was developed and conducted in 2014-2017 for two batches. METHODS: The course content was developed over 18 months by a team of Nepali and overseas AA training experts. The 1-year course started with a refresher course, continued with tablet based 12-month self-learning modules and clinical case logs, regular educational mentor communication, midcourse 2-week contact time in an AA training site, regular text messaging and ended with clinical examination and multiple-choice questions. Tablet content included 168 new case studies, pre- and posttests, video lectures, matching exercises and a resource library. All module work and logged clinical cases were uploaded centrally, where clinical mentors were able to review work. Clinical skills were upgraded, as needed, through direct clinical contact midway through the course. Quantitative and qualitative course assessments were included. RESULTS: Fourteen working AAs in first batch and eight working AAs in second batch from district, zonal and mission hospitals across Nepal were enrolled. All remained working at their hospitals throughout the course, and there were no significant tablet problems inhibiting course completion. Twenty-one AAs completed all modules successfully with time required for module completion averaging 19.2 h (range 11.2-32). One AA left the course after 3 months with a personal problem. Subjectively, AAs felt that the obstetric and pediatric modules were more difficult; lowest marks were objectively seen in the airway module. Clinical mentors averaged 8.2 h mentoring review work per module with direct student communication of 2.9 h per module per month. Participants logged a total of 5473 clinical cases, ranging between 50 and 788 cases each. Complications were recorded; outcomes were good. Challenges were the national IT infrastructure making data synchronization difficult and the lack of clinical exposure at some AA's hospitals. Nineteen AAs attended the final examination, and all passed. Two AAs withdrew before the final examination period due to personal and logistic reasons. CONCLUSION: This is the first use of distance blended learning to upgrade district health workers in Nepal and perhaps for non-doctor anesthesia providers globally. Key success factors were motivated students, cultural and contextualized clinical content, good educational mentoring relationships with regular communication, central IT and motivational support, and face-to-face midcourse clinical contact time. PMID- 29038831 TI - Recovery from sublethal damage and potentially lethal damage : Proton beam irradiation vs. X-ray irradiation. AB - PURPOSE: In order to clarify the biological response of tumor cells to proton beam irradiation, sublethal damage recovery (SLDR) and potentially lethal damage recovery (PLDR) induced after proton beam irradiation at the center of a 10 cm spread-out Bragg peak (SOBP) were compared with those seen after X-ray irradiation. METHODS: Cell survival was determined by a colony assay using EMT6 and human salivary gland tumor (HSG) cells. First, two doses of 4 Gy/GyE (Gray equivalents, GyE) were given at an interfraction interval of 0-6 h. Second, five fractions of 1.6 Gy/GyE were administered at interfraction intervals of 0-5 min. Third, a delayed-plating assay involving cells in plateau-phase cultures was conducted. The cells were plated in plastic dishes immediately or 2-24 h after being irradiated with 8 Gy/GyE of X-rays or proton beams. Furthermore, we investigated the degree of protection from the effects of X-rays or proton beams afforded by the radical scavenger dimethyl sulfoxide to estimate the contribution of the indirect effect of radiation. RESULTS: In both the first and second experiments, SLDR was more suppressed after proton beam irradiation than after X ray irradiation. In the third experiment, there was no difference in PLDR between the proton beam and X-ray irradiation conditions. The degree of protection tended to be higher after X-ray irradiation than after proton beam irradiation. CONCLUSION: Compared with that seen after X-ray irradiation, SLDR might take place to a lesser extent after proton beam irradiation at the center of a 10 cm SOBP, while the extent of PLDR does not differ significantly between these two conditions. PMID- 29038832 TI - Dynamics of rectal balloon implant shrinkage in prostate VMAT : Influence on anorectal dose and late rectal complication risk. AB - PURPOSE: To assess the effect of a shrinking rectal balloon implant (RBI) on the anorectal dose and complication risk during the course of moderately hypofractionated prostate radiotherapy. METHODS: In 15 patients with localized prostate cancer, an RBI was implanted. A weekly kilovolt cone-beam computed tomography (CBCT) scan was acquired to measure the dynamics of RBI volume and prostate-rectum separation. The absolute anorectal volume encompassed by the 2 Gy equieffective 75 Gy isodose (V75Gy) was recalculated as well as the mean anorectal dose. The increase in estimated risk of grade 2-3 late rectal bleeding (LRB) between the start and end of treatment was predicted using nomograms. The observed acute and late toxicities were evaluated. RESULTS: A significant shrinkage of RBI volumes was observed, with an average volume of 70.4% of baseline at the end of the treatment. Although the prostate-rectum separation significantly decreased over time, it remained at least 1 cm. No significant increase in V75Gy of the anorectum was observed, except in one patient whose RBI had completely deflated in the third week of treatment. No correlation between mean anorectal dose and balloon deflation was found. The increase in predicted LRB risk was not significant, except in the one patient whose RBI completely deflated. The observed toxicities confirmed these findings. CONCLUSIONS: Despite significant decrease in RBI volume the high-dose rectal volume and the predicted LRB risk were unaffected due to a persistent spacing between the prostate and the anterior rectal wall. PMID- 29038833 TI - Tips and tricks for uterosacral ligament suspension: how to avoid ureteral injury. AB - INTRODUCTION AND HYPOTHESIS: Uterosacral ligament (USL) suspension is an effective and versatile surgical technique for repairing pelvic organ prolapse. However, ureteral injury is a feared complication that may act as a significant deterrent to the use of USL suspension. The aim of the video is to provide key steps to minimize the risk of ureteral injury while achieving successful transvaginal USL suspension. METHODS: The featured video provides a series of surgical tips and tricks that can be applied to protect the ureters while achieving USL suspension whether the procedure contemplated is vaginal hysterectomy, vaginal vault repair after hysterectomy, or hysteropexy. RESULTS: The tips and tricks are classified into four categories: identification of the USLs, identification of the ureters, passage of the sutures, and final measures. CONCLUSIONS: The USL suspension technique requires adequate surgical training and an understanding of pelvic anatomy. This tips and tricks video tutorial may be an important tool for improving surgical know-how, and thus for reducing the risk of ureteral injury. In particular, identification of the USLs and ureters, proper suture positioning and final cystoscopy are key points to minimize ureteral damage. PMID- 29038834 TI - The treatment of post-hysterectomy vaginal vault prolapse: a systematic review and meta-analysis. AB - INTRODUCTION AND HYPOTHESIS: The treatment of post-hysterectomy vaginal vault prolapse (VVP) has been investigated in several randomized clinical trials (RCTs), but a systematic review of the topic is still lacking. The aim of this study is to compare the effectiveness of treatments for VVP. METHODS: We performed a systematic review and meta-analysis of the literature on the treatment of VVP found in PubMed and Embase. Reference lists of identified relevant articles were checked for additional articles. A network plot was constructed to illustrate the geometry of the network of the treatments included. Only RCTs reporting on the treatment of VVP were eligible, conditional on a minimum of 30 participants with VVP and a follow-up of at least 6 months. RESULTS: Nine RCTs reporting 846 women (ranging from 95 to 168 women) met the inclusion criteria. All surgical techniques were associated with good subjective results, and without differences between the compared technique, with the exception of the comparison of vaginal mesh (VM) vs laparoscopic sacrocolpopexy (LSC). LSC is associated with a higher satisfaction rate. The anatomical results of the sacrocolpopexy (laparoscopic, robotic [RSC]. and abdominal [ASC]) are the best (62-91%), followed by the VM. However, the ranges of the anatomical outcome of VM were wide (43-97%). The poorest results are described for the sacrospinal fixation (SSF; 35-81%), which also correlates with the higher reoperation rate for pelvic organ prolapse (POP; 5-9%). The highest percentage of complications were reported after ASC (2-19%), VM (6-29%), and RSC (54%). Mesh exposure was seen most often after VM (8-21%). The rate of reoperations carried out because of complications, recurrence prolapse, and incontinence of VM was 13-22%. Overall, sacrocolpopexy reported the best results at follow-up, with an outlier of one trial reporting the highest reoperation rate for POP (11%). The results of the RSC are too small to make any conclusion, but LSC seems to be preferable to ASC. CONCLUSIONS: A comparison of techniques was difficult because of heterogeneity; therefore, a network meta-analysis was not possible. All techniques have proved to be effective. The reported differences between the techniques were negligible. Therefore, a standard treatment for VVP could not be given according to this review. PMID- 29038835 TI - Interaction between LRP5 and periostin gene polymorphisms on serum periostin levels and cortical bone microstructure. AB - : We investigated the interaction between periostin SNPs and the SNPs of the genes assumed to modulate serum periostin levels and bone microstructure in a cohort of postmenopausal women. We identified an interaction between LRP5 SNP rs648438 and periostin SNP rs9547970 on serum periostin levels and on radial cortical porosity. PURPOSE: The purpose of this study is to investigate the interaction between periostin gene polymorphisms (SNPs) and other genes potentially responsible for modulating serum periostin levels and bone microstructure in a cohort of postmenopausal women. METHODS: In 648 postmenopausal women from the Geneva Retirees Cohort, we analyzed 6 periostin SNPs and another 149 SNPs in 14 genes, namely BMP2, CTNNB1, ESR1, ESR2, LRP5, LRP6, PTH, SPTBN1, SOST, TGFb1, TNFRSF11A, TNFSF11, TNFRSF11B and WNT16. Volumetric BMD and bone microstructure were measured by high-resolution peripheral quantitative computed tomography at the distal radius and tibia. RESULTS: Serum periostin levels were associated with radial cortical porosity, including after adjustment for age, BMI, and years since menopause (p = 0.036). Sixteen SNPs in the ESR1, LRP5, TNFRSF11A, SOST, SPTBN1, TNFRSF11B and TNFSF11 genes were associated with serum periostin levels (p range 0.03-0.001) whereas 26 SNPs in 9 genes were associated with cortical porosity at the radius and/or at the tibia. WNT 16 was the gene with the highest number of SNPs associated with both trabecular and cortical microstructure. The periostin SNP rs9547970 was also associated with cortical porosity (p = 0.04). In particular, SNPs in LRP5, ESR1 and near the TNFRSF11A gene were associated with both cortical porosity and serum periostin levels. Eventually, we identified an interaction between LRP5 SNP rs648438 and periostin SNP rs9547970 on serum periostin levels (interaction p = 0.01) and on radial cortical porosity (interaction p = 0.005). CONCLUSION: These results suggest that periostin expression is genetically modulated, particularly by polymorphisms in the Wnt pathway, and is thereby implicated in the genetic variation of bone microstructure. PMID- 29038836 TI - Automated DXA-based finite element analysis for hip fracture risk stratification: a cross-sectional study. AB - : Fracture risk indices (FRIs) generated from DXA-based finite element analysis were associated with hip fracture independent of FRAX score computed with femoral neck bone mineral density (BMD). Prospective studies are warranted to determine whether FRIs represent an improvement over BMD for predicting incident hip fractures. INTRODUCTION: The study aims to examine the association between prior hip fracture and FRIs derived from automated finite element analysis (FEA) of DXA hip scans. Femoral neck, intertrochanteric, and subtrochanteric FRIs were calculated as the von Mises stress induced by a sideways fall divided by the bone yield stress over the specified region of interest (ROI). METHODS: Using the Manitoba Bone Mineral Density Database, we selected women age >= 65 years with femoral neck T-scores below - 1 and no osteoporosis treatment. From this population, we identified 324 older women with hip fracture before DXA testing and a random sample of 658 non-fracture controls. FRIs were derived from the anonymized DXA scans. Logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (95% CIs) for the associations between FRIs (per SD increase) and hip fracture. RESULTS: After adjusting for FRAX score (hip fracture with BMD), femoral neck FRI (OR 1.36, 95% CI 1.13, 1.64), intertrochanteric FRI (OR 1.81, 95% CI 1.44, 2.27), and subtrochanteric FRI (OR 2.09, 95% CI 1.68, 2.60) were associated with hip fracture. Intertrochanteric and subtrochanteric FRIs gave significantly higher c-statistics (all P <= 0.05) than femoral neck BMD. Subgroup analyses showed that all FRIs were more strongly associated with hip fracture in women who were younger and had higher body mass index (BMI) or non-osteoporotic BMD (all P interaction < 0.1). CONCLUSIONS: FRIs derived from DXA-based FEA were independently associated with prior hip fracture, suggesting that they could potentially improve hip fracture risk assessment. PMID- 29038838 TI - Respiratory sensitization: toxicological point of view on the available assays. AB - Respiratory sensitization as a consequence of exposure to chemical products has increased over the last decades, leading to an increase of morbidity. The increased use of synthetic compounds resulted in an exponential growth of substances to which we are potentially exposed on a daily basis. Some of them are known to induce respiratory sensitization, meaning that they can trigger the development of allergies. In the past, animal studies provided useful results for the understanding of mechanisms involved in the development of respiratory allergies. However, the mechanistic understanding of the involved cellular effects is still limited. Currently, no in vitro or in vivo models are validated to identify chemical respiratory sensitizers. Nonetheless, chemical respiratory sensitizers elicit a positive response in validated assays for skin sensitization. In this review, we will discuss how these assays could be used for respiratory sensitization and if necessary, what can be learnt from these assays to develop a model to assess the respiratory sensitizing potential of chemicals. In the last decades, much work has been done to study the respiratory toxicity of inhaled compounds especially in developing in vitro assays grown at the air liquid interface. We will discuss how possibly the tests currently used to investigate general particle toxicity could be transformed to investigate respiratory sensitization. In the present review, we describe the most known mechanism involved in the sensitization process and the experimental in vivo and alternative in vitro models, which are currently available and how to adapt and improve existing models to study respiratory sensitization. PMID- 29038837 TI - Reduced kidney function is associated with BMD, bone loss and markers of mineral homeostasis in older women: a 10-year longitudinal study. AB - : Kidney function decreases with age; however, the long-term influence on bone density (BMD) in older women already at risk of osteoporosis is unknown. We followed kidney function and bone loss for 10 years. Declining kidney function was adversely associated with bone loss and mineral homeostasis in old women, though it attenuated with advanced aging. INTRODUCTION: Existing studies do not fully address the relationship between kidney function and bone metabolism with advanced aging in Caucasian women. This study describes the association between kidney function, BMD, bone loss and bone metabolism in older women and provides a review of the available literature for context. METHODS: We studied participants from the OPRA cohort with follow-up after 5 and 10 years. Using plasma cystatin C (cysC), estimated glomerular function rate (eGFR) was evaluated at age 75 (n = 981), 80 (n = 685) and 85 (n = 365). Women were stratified into "normal" function (CKD stages 1-2), "intermediate" (stage 3a) and "poor" (stages 3b-5), and outcome measures-BMD, bone loss and markers of mineral homeostasis-were compared. RESULTS: Femoral neck (FN) BMD positively associated with kidney function at 75 years old ([Formula: see text] = 0.001, p = 0.028) and 80 years old ([Formula: see text] = 0.001, p = 0.001), although with small effect size. Prevalence of osteoporosis (FN T-score <= - 2.5) did not differ with kidney function. Measured at age 75, women with poor kidney function had higher annual percentage bone loss over 5 years compared to those with normal function (2.3%, 95% CI 1.8-2.8 versus 1.3%, 95% CI 1.1-1.5, p = 0.007), although not when measured from age 80 or 85. Additionally, markers of mineral homeostasis (PTH, phosphate, vitamin D, calcium), CRP and osteocalcin differed by kidney function. CONCLUSIONS: In old women, kidney function is associated with BMD, bone loss and altered mineral homeostasis; probably, a relationship attenuated in the very elderly. PMID- 29038839 TI - Hepatotoxic combination effects of three azole fungicides in a broad dose range. AB - Single active substances of pesticides are thoroughly examined for their toxicity before approval. In this context, the liver is frequently found to be the main target organ. Since consumers are generally exposed to multiple residues of different active substances via the diet, it is important to analyse combinations of active substances for potential mixture effects. For the (tri-)azoles, a group of agricultural fungicides and antifungal drugs, combination effects on the liver are likely because of a similar mode of action. Hepatotoxic effects of mixtures of two triazoles (cyproconazole and epoxiconazole) and an imidazole (prochloraz) were investigated in a 28-day feeding study in rats at three dose levels ranging from a typical toxicological reference value to a clear effect dose. Test parameters included organ weights, clinical chemistry, histopathology and morphometry. In addition, molecular parameters were investigated by means of pathway-focused gene expression arrays, quantitative real-time PCR and enzyme activity assays. Effects were compared to those caused by the individual substances as observed at the same dose levels in a previous study. Mixture effects were substantiated by increases in relative and absolute liver weights, histopathological findings and alterations in clinical chemistry parameters at the top dose level. On the molecular level also at lower dose levels, additive effects could be observed for the induction of several cytochrome P 450 enzymes (Cyp1a1, Cyp2b1, Cyp3a2), transporters (Abcb1a, Abcc3) and of genes encoding for enzymes involved in fatty acid or phospholipid metabolism (Ppargc1a, Sc4 mol). In most cases, treatment with mixtures caused a more pronounced effect as compared to the individual substances. However, the assumption of dose additivity was in general sufficiently conservative to cover mixture effects observed under the conditions of the present study. PMID- 29038840 TI - GABAA receptor subtype selectivity of the proconvulsant rodenticide TETS. AB - The rodenticide tetramethylenedisulfotetramine (TETS) is a potent convulsant (lethal dose in humans 7-10 mg) that is listed as a possible threat agent by the United States Department of Homeland Security. TETS has previously been studied in vivo for toxicity and in vitro in binding assays, with the latter demonstrating it to be a non-competitive antagonist on GABAA receptors. To determine whether TETS exhibits subtype selectivity for a particular GABAA receptor combination, we used whole-cell patch-clamp to determine the potency of TETS on the major synaptic and extrasynaptic GABAA receptors associated with convulsant activity. The active component of picrotoxin, picrotoxinin, was used as a control. While picrotoxinin did not differentiate well between 13 GABAA receptors, TETS exhibited the highest activity on alpha2beta3gamma2 (IC50 480 nM, 95% CI 320-640 nM) and alpha6beta3gamma2 (IC50 400 nM, 95% CI 290-510 nM). Introducing beta1 or beta2 subunits into these receptor combinations reduced or abolished TETS sensitivity, suggesting that TETS preferentially affects receptors with alpha2/beta3 or alpha6/beta3 composition. Since alpha2beta3gamma2 receptors make up 15-20% of the GABAA receptors in the mammalian CNS, we suggest that alpha2beta3gamma2 is probably the most important GABAA receptor for the seizure inducing activity of TETS. PMID- 29038842 TI - Fertility after recurrent miscarriages: results of an observational cohort study. AB - PURPOSE: Recurrent pregnancy losses (RPL) are considered a pathological condition associated with heterogeneous laboratory and clinical findings, and are also linked to subfertility. We attempt to rank parameters derived from past history and diagnostic results with regard to the prognosis. METHODS: Observational trial on 719 consecutive couples who were referred to a tertiary immunological care centre (2006-2014) after three or more primary miscarriages. Information on past obstetric history and diagnostic procedures at baseline were correlated with cumulative pregnancy and delivery rates using Kaplan-Meier estimation, logistic regression and multivariate analysis. RESULTS: At baseline, median female age was 34.1 years, waiting time 3 years (1-17), number of preceding miscarriages 3 (3 9), 147 women (20.4%) had conceived at least once in ART or AIH cycles. After a median follow-up of 33.7 (1.7-123.0) months, 5-year pregnancy and delivery rates were 86.1 and 64.5%. Female age (< 35 years), waiting time (< 3 years) until baseline, tubal competence, and male factor fertility significantly correlated with favourable outcome (p < 0.001), while body mass index (> 29 kg/m2), number of preceding miscarriages (> 4), late miscarriages, preclinical losses and smoking revealed non-significant negative trends. Mode of conception until baseline (spontaneously or ART/AIH) and classification into idiopathic and non idiopathic RPL showed no prognostic relevance. CONCLUSION: Although in general, chances to conceive a child are retained after three or more miscarriages, factors related to subfertility of both partners have an important impact on the outcome. Therefore, prolonged time to pregnancy (> 6-9 months) should result in preventive gynaecological care from the first miscarriage on, so that fertility can be preserved as best as possible. PMID- 29038843 TI - Per-oral endoscopic salpingo-oophorectomy (POESY) in humans: a prospective clinical feasibility study. AB - BACKGROUND AND AIMS: Natural orifice translumenal endoscopic surgery (NOTES) procedure describes a surgical approach using natural orifices. We describe a prospective non-comparative clinical study on transgastric salpingo-oophorectomy in humans. METHODS: Patients with indication for salpingo-oophorectomy were offered the transgastric approach. This paper presents the data of the first 6 patients, in whom the procedure was performed. After gastroscopic incision in the anterior corpus wall we advanced the flexible gastroscope into the abdominal cavity. With the help of a transvaginally introduced 10 mm trocar and, if the uterus was present, an intrauterine manipulator, the salpingo-oophorectomy was performed. The colpotomy was dilated and the specimens were extracted in a bag. The gastrotomy was closed with an over-the-scope-clip and the colpotomy with a running suture. RESULTS: The planned salpingo-oophorectomy was performed successfully in all patients. All patients recovered quickly and were discharged between the third and fifth day. In one patient a gastric bleeding was seen on the first postoperative day. The bleeding was clipped gastroscopically, all other follow ups were uneventful. CONCLUSION: Our study demonstrates the feasibility of the transgastric access to the pelvis. The gastroscope provided excellent optical control and good tissue preparation. Therefore, we conclude that pure NOTES procedures using the transgastric access to the adnexa are feasible. An increasing role of transgastric procedures for diseases in the pelvic region can be expected in particular if new endoscopic platforms with better means of instrumentation and tissue management become available. PMID- 29038841 TI - The maternal microbiome during pregnancy and allergic disease in the offspring. AB - There is substantial epidemiological and mechanistic evidence that the increase in allergic disease and asthma in many parts of the world in part relates to changes in microbial exposures and diet acting via the composition and metabolic products of the intestinal microbiome. The majority of research in this field has focused on the gut microbiome during infancy, but it is increasingly clear that the maternal microbiome during pregnancy also has a key role in preventing an allergy-prone immune phenotype in the offspring. The mechanisms by which the maternal microbiome influences the developing fetal immune system include alignment between the maternal and infant regulatory immune status and transplacental passage of microbial metabolites and IgG. Interplay between microbial stimulatory factors such as lipopolysaccharides and regulatory factors such as short-chain fatty acids may also influence on fetal immune development. However, our understanding of these pathways is at an early stage and further mechanistic studies are needed. There are also no data from human studies relating the composition and metabolic activity of the maternal microbiome during pregnancy to the offspring's immune status at birth and risk of allergic disease. Improved knowledge of these pathways may inform novel strategies for tackling the increase in allergic disorders in the modern world. PMID- 29038844 TI - In Vitro Antioxidant, Antihemolytic, and Anticancer Activity of the Carotenoids from Halophilic Archaea. AB - Halophilic archaea represent a promising natural source of carotenoids. However, little information is available about the biological effects of carotenoids from halophilic archaea. In this study, the carotenoids produced by seven halophilic archaeal strains Halogeometricum rufum, Halogeometricum limi, Haladaptatus litoreus, Haloplanus vescus, Halopelagius inordinatus, Halogranum rubrum, and Haloferax volcanii were identified by ultraviolet/visible spectroscopy, thin layer chromatography, and high-performance liquid chromatography-tandem mass spectrometry. The C50 carotenoids bacterioruberin and its derivatives monoanhydrobacterioruberin and bisanhydrobacterioruberin were found to be the predominant carotenoids. The antioxidant capacities of the carotenoids from these strains were significantly higher than beta-carotene as determined by 1,1 diphenyl-2-picrylhydrazyl radical scavenging assay. The antihemolytic activities of these carotenoid extracts against H2O2-induced hemolysis in mouse erythrocytes were 3.9-6.3 times higher than beta-carotene. A dose-dependent in vitro antiproliferative activity against HepG2 cells was observed for the extract from Hgm. limi, while that from Hpn. vescus exhibited a relatively high activity in a dose-independent manner. These results suggested that halophilic archaea could be considered as an alternative source of natural carotenoids with high antioxidant, antihemolytic, and anticancer activity. PMID- 29038845 TI - Clinical and sonographic evaluation of subpectoral biceps tenodesis with a dual suture anchor technique demonstrates improved outcomes and a low failure rate at a minimum 2-year follow-up. AB - INTRODUCTION: The purpose of this study was to evaluate the clinical outcomes and integrity of an open subpectoral biceps tenodesis using a dual suture anchor construct. MATERIALS AND METHODS: Patients with at least 2 years of follow-up were retrospectively evaluated for simple shoulder test (SST), American Shoulder and Elbow Surgeons (ASES) score, and visual analog scales (VAS) for pain, function and satisfaction. A physical exam assessed shoulder range of motion and elbow strength. Ultrasonography visualized construct integrity. RESULTS: Of 43 eligible patients, 36 completed questionnaire evaluation and 22 completed an additional physical examination. Indications included superior labral anterior posterior (SLAP) lesions (4), partial thickness tears (6), instability (6), and tenosynovitis of the biceps tendon (20). Eighteen patients (50%) had an associated rotator cuff tear. Patient-reported outcomes improved pre- vs postoperatively: ASES score (45.4 vs 78.6, P < 0.001), SST (5.1 vs 9.6, P < 0.001), pain-VAS (4.8 vs 2.0, P < 0.001), and function-VAS (4.9 vs 2.3, P < 0.001). Satisfaction-VAS was 8.3 postoperatively. Patient-reported outcomes did not differ for patients with an associated rotator cuff tear compared to those without (P >= 0.427). None of the physical exam measures were lower on the operative side compared to the healthy side (P >= 0.516). Sonographic evaluation revealed preserved integrity of the tenodesis construct in all cases. No complications were noted. CONCLUSIONS: Subpectoral biceps tenodesis utilizing a dual suture anchor technique is a treatment option for SLAP lesions, partial thickness tears, subluxation, and tenosynovitis of the long head of the biceps with high rates of postoperative patient satisfaction, a low failure rate, and improved outcome scores. The presence of a concomitant rotator cuff tear did not influence clinical outcomes. PMID- 29038846 TI - A possible implication of reduced levels of LIF, LIFR, and gp130 in vasculopathy related to systemic sclerosis. AB - Leukemia inhibitory factor (LIF) is a member of IL-6 family, which serves as a potent chemoattractant for neutrophils as well as a potent angiostatic factor. LIF has been implicated in various autoimmune inflammatory diseases, but its role still remains elusive in systemic sclerosis (SSc). Therefore, we investigated the potential role of LIF in the development of SSc by evaluating the clinical correlation of serum LIF levels, the expression of LIF and its receptors in skin samples, and in vitro experiments with human dermal microvascular endothelial cells. Serum LIF levels were significantly decreased in patients with SSc, especially in those with disease duration of < 1 year compared with healthy controls. As for clinical correlation, SSc patients with digital ulcers exhibited serum LIF levels significantly lower than those without. In immunohistochemistry, the expression of LIF and its receptors, LIF receptor and gp130, was remarkably decreased in dermal blood vessels of SSc lesional skin relative to those of healthy control skin. Furthermore, gene silencing of transcription factor Fli1, whose deficiency is involved in the development of SSc vasculopathy, suppressed the expression of LIF, LIF receptor, and gp130 and Fli1 bound to the promoters of those genes in human dermal microvascular endothelial cells. Collectively, these results suggest that decreased serum LIF levels may be associated with vasculopathy in SSc and that Fli1 deficiency may contribute to the inhibition of LIF-dependent biological effects on SSc endothelial cells by suppressing the expression of LIF, LIF receptor, and gp130. PMID- 29038848 TI - CA19-9 kinetics during systemic chemotherapy in patients with advanced or recurrent biliary tract cancer. AB - PURPOSE: The role of carbohydrate antigen 19-9 (CA19-9) kinetics in patients with biliary tract cancer (BTC) receiving chemotherapy remains to be elucidated. METHODS: A total of 185 advanced or recurrent BTC patients receiving a first line chemotherapy between January 2006 and March 2016, were retrospectively studied. Serum CA19-9 was measured at baseline and after two cycles of chemotherapy, and patients were categorized based on CA19-9 response: CA19-9 decrease group (>= 30% decrease), stable group (< 30% decrease and < 20% increase) and increase group (>= 20% increase). The associations of CA19-9 response with radiological tumor response, progression-free survival (PFS) and overall survival (OS) were investigated. RESULTS: There was a statistically significant association between CA19-9 response and radiological tumor responses (p < 0.001). The median PFS and OS were significantly different among three groups according to CA19-9 response: PFS of 8.0, 5.7 and 3.5 months in CA19-9 decrease, stable and increase groups (p < 0.001) and OS of 18.8, 16.0 and 7.5 months in CA19-9 decrease, stable and increase groups, respectively (p < 0.001). Multivariate analyses showed that CA19 9 response was prognostic both of OS and PFS in addition, to CA19-9 at baseline, and performance status. CONCLUSION: CA19-9 kinetics after the first two cycles of a first line chemotherapy was a prognostic factor for OS and PFS in patients with advanced and recurrent BTC. PMID- 29038847 TI - Touching lips and hearing fingers: effector-specific congruency between tactile and auditory stimulation modulates N1 amplitude and alpha desynchronization. AB - Understanding the interactions between audition and sensorimotor processes is of theoretical importance, particularly in relation to speech processing. Although one current focus in this area is on interactions between auditory perception and the motor system, there has been less research on connections between the auditory and somatosensory modalities. The current study takes a novel approach to this omission by examining specific auditory-tactile interactions in the context of speech and non-speech sound production. Electroencephalography was used to examine brain responses when participants were presented with speech syllables (a bilabial sound /pa/ and a non-labial sound /ka/) or finger-snapping sounds that were simultaneously paired with tactile stimulation of either the lower lip or the right middle finger. Analyses focused on the sensory-evoked N1 in the event-related potential and the extent of alpha band desynchronization elicited by the stimuli. N1 amplitude over fronto-central sites was significantly enhanced when the bilabial /pa/ sound was paired with tactile lip stimulation and when the finger-snapping sound was paired with tactile stimulation of the finger. Post-stimulus alpha desynchronization at central sites was also enhanced when the /pa/ sound was accompanied by tactile stimulation of the lip. These novel findings indicate that neural aspects of somatosensory-auditory interactions are influenced by the congruency between the location of the bodily touch and the bodily origin of a perceived sound. PMID- 29038850 TI - A triplet combination with capecitabine/oxaliplatin/irinotecan (XELOXIRI) plus cetuximab as first-line therapy for patients with metastatic colorectal cancer: a dose escalation study. AB - PURPOSE: The addition of cetuximab to triplet chemotherapy can increase treatment efficacy for patients with metastatic colorectal cancer (mCRC). We explored the dose-limiting toxicity and feasibility of a triweekly capecitabine, oxaliplatin, irinotecan, plus cetuximab (XELOXIRI plus cetuximab) regimen in patients with wild-type KRAS mCRC. METHODS: Patients received oxaliplatin (100 mg/m2, day 1), capecitabine (1700 mg/m2 per day from day 2 to 15), irinotecan (100, 120, and 150 mg/m2 for dose levels 1, 2, 3, respectively, on day 1), and cetuximab (400 mg/m2, day 1 and, thereafter, 250 mg/m2 every week), repeated every 3 weeks. Dose limiting toxicities (DLTs) were assessed in the first 2 treatment cycles to determine the maximum tolerated dose (MTD) and the recommended dose (RD). RESULTS: Twelve patients received a median of 7 cycles of therapy (range 2-10). The DLT was grade 4 neutropenia, observed in 1 of 6 patients at dose level 2. The MTD was not reached at dose level 3. Therefore, the RD of irinotecan was defined as 150 mg/m2. Most common grade >= 3 toxicities were neutropenia (50%), diarrhea (17%), and febrile neutropenia (8%). The response rate was 83% (complete and partial response: 1 and 9 patient(s), respectively), including 4 conversion cases. CONCLUSIONS: The combination of XELOXIRI and cetuximab is feasible and has an acceptable toxicity profile; neutropenia was the DLT. The RD of irinotecan is 150 mg/m2. The observed response rate was promising and warrants further investigation. PMID- 29038849 TI - Malignant bone tumors (other than Ewing's): clinical practice guidelines for diagnosis, treatment and follow-up by Spanish Group for Research on Sarcomas (GEIS). AB - Primary malignant bone tumors are uncommon and heterogeneous malignancies. This document is a guideline developed by the Spanish Group for Research on Sarcoma with the participation of different specialists involved in the diagnosis and treatment of bone sarcomas. The aim is to provide practical recommendations with the intention of helping in the clinical decision-making process. The diagnosis and treatment of bone tumors requires a multidisciplinary approach, involving as a minimum pathologists, radiologists, surgeons, and radiation and medical oncologists. Early referral to a specialist center could improve patients' survival. The multidisciplinary management of osteosarcoma, chondrosarcoma, chordoma, giant cell tumor of bone and other rare bone tumors is reviewed in this guideline. Ewing's sarcoma will be the focus of a separate guideline because of its specific biological, clinical and therapeutic features. Each statement has been accompanied by the level of evidence and grade of recommendation on the basis of the available data. Surgical excision is the mainstay of treatment of a localized bone tumor, with various techniques available depending on the histologic type, grade and location of the tumor. Chemotherapy plays an important role in some chemosensitive subtypes (such as high-grade osteosarcoma). In other subtypes, historically considered chemoresistant (such as chordoma or giant cell tumor of bone), new targeted therapies have emerged recently, with a very significant efficacy in the case of denosumab. Radiation therapy is usually necessary in the treatment of chordoma and sometimes of other bone tumors. PMID- 29038852 TI - The role of Journal of Anesthesia as a flagship anesthesia journal in Asia. PMID- 29038851 TI - Three cases of implantation of a SureScan(r) system and MRI for investigating causes of pain. AB - We report three cases of implantation of the SureScan(r) system and magnetic resonance imaging (MRI) for investigating causes of pain. Although there were metal-induced artifacts on the MR images of 2 patients, the artifacts did not affect the images of structures that needed to be assessed to make the diagnosis. The SureScan(r) system enabled patients implanted with spinal cord stimulation devices to undergo MRI. PMID- 29038853 TI - Arterial-ventricular coupling in type 1 diabetes: arterial stiffness is associated with impaired global longitudinal strain in type 1 diabetes patients the Thousand & 1 Study. AB - AIMS: Diabetes is associated with higher arterial stiffness-an early marker of cardiovascular disease. The coupling between arterial stiffness and myocardial function is still unresolved. We investigate associations between arterial stiffness and early myocardial impairment assessed with advanced echocardiography. METHODS: In 305 type 1 diabetes (T1D) patients without known heart disease and with normal left ventricular ejection fraction (LVEF) (biplane LVEF > 45%), we measured arterial stiffness as pulse wave velocity (PWV) and performed conventional and speckle-tracking echocardiography assessing global longitudinal strain (GLS) as a measure of systolic myocardial function. Associations between PWV and myocardial function were reported as standardized beta values from adjusted regression models including age, sex, mean arterial pressure, body mass index, HbA1c, diabetes duration, estimated glomerular filtration rate, degree of albuminuria, total cholesterol, heart rate and smoking. RESULTS: Patients were 54 (12) years [mean (SD)], 152 (50%) females, diabetes duration 31 (16) years, HbA1c 65 (12) mmol/mol, LVEF 58 (5) %, GLS -18.2 (2.6) % and PWV 10.2 (3.4) m/s. There was no association between PWV and LVEF (p = 0.93). Conversely, there was a highly significant association between PWV and GLS in crude and multivariable models (standardized beta-coefficient 0.25, p < 0.001 and 0.16, p = 0.036, respectively). Also, diastolic function measured as E/e' was highly associated with PWV in crude and multivariable models (standardized beta-coefficient 0.43, p < 0.001 and 0.17, p = 0.016, respectively). CONCLUSIONS: In T1D patients with normal LVEF and without known heart disease, higher arterial stiffness is independently associated with early systolic and diastolic myocardial impairment detectable by advanced echocardiography. Although unable to demonstrate causality, we display a relationship between diabetic angiopathy and diabetic cardiomyopathy (H-3-2009 139 and PROFIL-H-B-2009-056). PMID- 29038854 TI - Who is a survivor? Perceptions from individuals who experienced pediatric cancer and their primary support persons. AB - PURPOSE: The purpose of this research was to examine the lived experiences of individuals who had cancer as children, as well as lived experiences of their current primary support persons. METHODS: Based on van Manen's "new" interpretive phenomenology, interviews were conducted with ten pediatric cancer survivors and nine of their support persons to gain a more holistic understanding of the pediatric cancer experiences of children and their families. RESULTS: Four themes emerged from the data; however, only the topic of the use of the term "survivor" and identification with the term will be discussed. All participants in the study described their personal definition of the term survivor and what it meant to be a survivor. Additionally, all individuals in the study discussed the concept of being a survivor and if they would consider themselves, or their loved ones, to be "survivors." CONCLUSIONS: The results of this study provide health care professionals, family members, and individuals fundraising or advocating for cancer causes with insights on how the term survivor may be interpreted. This study may provide insight to individuals who had cancer as children, in showing that their personal perspective shapes their identity; although "survivor" is common cancer vernacular, individuals can choose not to identify with their illness experiences. PMID- 29038855 TI - Imaging mimics of pancreatic ductal adenocarcinoma. AB - Pancreatic ductal adenocarcinoma is the most common primary malignancy of the pancreas. The classic imaging features are a hypovascular mass with proximal ductal dilatation. Different pancreatic pathologies can mimic the imaging appearance of carcinoma including other tumors involving the pancreas (pancreatic neuroendocrine tumors, lymphoma, metastasis, and rare tumors like pancreatic acinar cell carcinoma and solid pseudopapillary tumors), inflammatory processes (chronic pancreatitis and autoimmune pancreatitis), and anatomic variants (annular pancreas). Differentiation between these entities can sometimes be challenging due to overlap of imaging features. The purpose of this article is to describe the common entities that can mimic pancreatic cancer on imaging with illustrative examples and to suggest features that can help in differentiation of these entities. PMID- 29038856 TI - Comparison of diagnostic performance between 1 millisievert CT enterography and half-standard dose CT enterography for evaluating active inflammation in patients with Crohn's disease. AB - PURPOSE: To compare the diagnostic performance of CT enterography (CTE) images obtained at 1 millisievert (mSv) and reconstructed with filtered back projection (FBP) and adaptive statistical iterative reconstruction (ASIR) with those of half dose CTE images for the evaluation of active inflammation in patients with Crohn's disease. METHODS: Forty-six consecutive patients (mean age 29 years; range 15-59 years) with Crohn's disease underwent CTE which comprised a standard dose scan at the enteric phase (45 s), a half-dose scan with ASIR at the portal venous phase (70 s), and 1 mSv scans with FBP and ASIR at the delayed phase (90 s) under a fixed 120 kVp and variable mAs. Two blinded readers independently recorded confidence scores for active inflammation in the ileum and terminal ileum, respectively. The diagnostic performance of each image set was compared by pairwise comparison of receiver operating characteristic curves. The established image findings on standard-dose scan and ileocolonoscopy served as the reference standard. RESULTS: A total of 92 bowel segments were analyzed. For reader 1, the diagnostic performance was increased from 1 mSv CT with FBP and 1 mSv CT with ASIR to half-dose scan with ASIR (AUC, 0.759, 0.794, and 0.845; P = 0.1429, P = 0.0107, respectively). For reader 2, there was no significant difference among the three image sets (AUC, 0.848, 0.865, and 0.845; P > 0.05, respectively). CONCLUSIONS: The diagnostic performance of 1 mSv CTE may be comparable to that of half-dose CTE. PMID- 29038857 TI - LI-RADS categories: concepts, definitions, and criteria. AB - The Liver Imaging Reporting and Data System (LI-RADS) was created to provide a standardized way to both assess and communicate the likelihood of benignity or malignancy of observations seen in patients at risk for development of hepatocellular carcinoma (HCC). The LI-RADS categories allow radiologists to convey the full spectrum of concern for malignancy, from definitely benign to definitely HCC. Additional categories are available for non-categorizable observations, observations that are concerning for a non-HCC malignancy, and the presence of tumor in vein. The goal of this paper is to discuss the LI-RADS categories, including criteria for each category, and point out changes to the categories from prior versions of LI-RADS. PMID- 29038858 TI - Surgical management of primary hyperparathyroidism. AB - We reviewed the surgical management of primary hyperparathyroidism through a retrospective chart review of 200 parathyroidectomy procedures performed over a 12 year period. Epidemiological data and accuracy of radiological investigations used in identifying pathological parathyroid tissue location were assessed. We determined how often simultaneous removal of thyroid tissue was required during parathyroidectomy and the associated pathology. Radiology reports were screened to determine if confirmed thyroid pathology from histological specimens were referenced pre-operatively. Open parathyroid surgery was performed in 71%, the remainder endoscopically. 95% of parathyroid specimens were confirmed as benign adenomas, with eight cases of hyperplasia and two parathyroid carcinomas. Pre operative ultrasound and SPECT-CT imaging demonstrated sensitivity of 55% and 73% respectively with regards correct adenoma localisation. Forty-nine patients (25%) underwent simultaneous partial thyroidectomy, 45 (92%) with dual pathology confirmed. Malignant thyroid lesions were identified in 18% (n = 8), Graves' disease 2% (n = 1), thyroiditis 9% (n = 4), multinodular goitre 56% (n = 25), unilateral nodule 4% (n = 2), hyperplasia 7% (n = 3) and intra-thyroid adenoma 4% (n = 2). Reference to these thyroid lesions was made in only 36% of preoperative imaging reports. In conclusion, synchronous thyroid surgery was carried out in a quarter of all parathyroidectomy procedures performed for treatment of primary hyperparathyroidism. Coincidental thyroid pathology was common. The limitations of pre-operative imaging in reliably locating involved parathyroid tissue are demonstrated and the importance of considering the potential need to perform thyroid surgery during parathyroidectomy and obtaining appropriate informed consent. PMID- 29038860 TI - The role of subtotal petrosectomy in cochlear implant recipients. AB - Describe the indications and outcome of subtotal petrosectomy for cochlear implant recipients. Tertiary care referral center. This is a retrospective study of all subtotal petrosectomies and cochlear implants performed between January 2012 and December 2014. We review the charts of these patients collecting the following data: age, gender, otologic history, audiologic tests, indication of subtotal petrosectomy, data of surgery, surgical and immediate complications, late complications and follow-up of for at least 2.5 years. 12 cases of subtotal petrosectomies with cochlear implantation in 11 patients were performed during this period; 2 children and 10 adults. The indication for a cochlear implant was in 10 cases bilateral severe to profound sensorineural hearing loss and in the remaining 2 cases was asymmetric hearing loss or unilateral hearing loss. The reason for performing a subtotal petrosectomy was chronic otitis media with or without cholesteatoma, radical cavities from previous surgeries or electrode extrusion of previously implanted devices. All cases were performed in one stage. One patient had an infectious complication that required revision surgery and finally an explantation. No other complications are described. Subtotal petrosectomy combined with cochlear implantation is a procedure required in certain situations. It is an effective and safe procedure for managing middle ear problems and creating a safe cavity to receive a cochlear implant either in adults and children. PMID- 29038859 TI - Refashioned lamb tissue as an animal model for training complex techniques of laryngotracheal stenosis surgery. AB - Open reconstructive upper airway surgery for laryngotracheal stenosis (LTS), whether for subglottic or tracheal stenosis, constitutes a group of complex approaches. LTS requiring open reconstruction is overall rare and primarily performed at tertiary centres. This poses an obvious challenge for the acquisition and maintenance of surgical skills for this group of complex approaches. In this context, animal models provide a unique opportunity for open reconstructive airway surgery training. Such models ought to take into consideration ethical aspects, be easily available and easy to maintain, and have similar macroscopic anatomical features to the human laryngotracheal frame. Here, we provide a brief surgical guide for the use of refashioned lamb tissue as a training model for surgery of adult and pediatric reconstructive airway surgery. The techniques of laryngotracheal reconstruction, partial cricotracheal resection, tracheal resection with end-to-end anastomosis, and slide tracheoplasty are presented. Proper training in open LTS surgery is challenging, time consuming and its complexity further lengthens the learning curve. The lamb larynx and trachea model is an effective model for practising various airway reclaiming surgeries. PMID- 29038861 TI - Drier climate shifts leaf morphology in Amazonian trees. AB - The humid forests of Amazonia are experiencing longer and more intense dry seasons, which are predicted to intensify by the end of the 21st century. Although tree species often have long generation times, they may still have the capacity to rapidly respond to changing climatic conditions through adaptive phenotypic plasticity. We, therefore, predicted that Amazonian trees have shifted their leaf morphology in response to the recent drier climate. We tested this prediction by analysing historical herbarium specimens of six Amazonian tree species collected over a 60-year period and comparing changes in leaf morphology with historical precipitation data. Moreover, we explored spatial and temporal biases in herbarium specimens and accounted for their potentially confounding effect in our analysis. We found pronounced biases in herbarium specimens, with nearly 20% of specimens collected in close geographic proximity and around the 1975s. When accounting for such biases, our results indicate a trend of decreasing leaf size after the 1970s, which may have been spurred by an observed reduction in rainfall. Our findings support the hypothesis that (some) Amazonian trees have the capacity to adaptively change their leaf phenotypes in response to the recent drier climate. Nevertheless, the unavoidable spatial and temporal biases in herbarium specimens call for caution when generalizing our findings to all Amazonian trees. PMID- 29038862 TI - Examining spatial patterns of selection and use for an altered predator guild. AB - Anthropogenic disturbances have altered species' distributions potentially impacting interspecific interactions. Interference competition is when one species denies a competing species access to a resource. One mechanism of interference competition is aggression, which can result in altered space-use of a subordinate species due to the threat of harm, otherwise known as a 'landscape of fear'. Alternatively, subordinates might outcompete dominant species in resource-poor environments via a superior ability to extract resources. Our goal was to evaluate spatial predictions of the 'landscape of fear' hypothesis for a carnivore guild in Newfoundland, Canada, where coyotes recently immigrated. Native Newfoundland carnivores include red foxes, Canada lynx, and black bears. We predicted foxes and lynx would avoid coyotes because of their larger size and similar dietary niches. We used scat-detecting dogs and genetic techniques to locate and identify predator scats. We then built resource selection functions and tested for avoidance by incorporating predicted values of selection for the alternative species into the best supported models of each species. We found multiple negative relationships, but notably did not find avoidance by foxes of areas selected by coyotes. While we did find that lynx avoided coyotes, we also found a reciprocal relationship. The observed patterns suggest spatial partitioning and not coyote avoidance, although avoidance could still be occurring at different spatial or temporal scales. Furthermore, Newfoundland's harsh climate and poor soils may swing the pendulum of interspecific interactions from interference competition to exploitative competition, where subordinates outcompete dominant competitors through a superior ability to extract resources. PMID- 29038863 TI - A warmer and drier climate in the northern sagebrush biome does not promote cheatgrass invasion or change its response to fire. AB - Dryland shrub communities have been degraded by a range of disturbances and now face additional stress from global climate change. The spring/summer growing season of the North American sagebrush biome is projected to become warmer and drier, which is expected to facilitate the expansion of the invasive annual grass Bromus tectorum (cheatgrass) and alter its response to fire in the northern extent of the biome. We tested these predictions with a factorial experiment with two levels of burning (spring burn and none) and three climate treatments (warming, warming + drying, and control) that was repeated over 3 years in a Montana sagebrush steppe. We expected the climate treatments to make B. tectorum more competitive with the native perennial grass community, especially Pseudoroegneria spicata, and alter its response to fire. Experimental warming and warming + drying reduced B. tectorum cover, biomass, and fecundity, but there was no response to fire except for fecundity, which increased; the native grass community was the most significant factor that affected B. tectorum metrics. The experimental climate treatments also negatively affected P. spicata, total native grass cover, and community biodiversity, while fire negatively affected total native grass cover, particularly when climate conditions were warmer and drier. Our short-term results indicate that without sufficient antecedent moisture and a significant disruption to the native perennial grass community, a change in climate to a warmer and drier spring/summer growing season in the northern sagebrush biome will not facilitate B. tectorum invasion or alter its response to fire. PMID- 29038865 TI - Multinodular and vacuolating neuronal tumor in an adolescent with Klinefelter syndrome. PMID- 29038864 TI - Improved detection of genetic loci in estimated glomerular filtration rate and type 2 diabetes using a pleiotropic cFDR method. AB - Genome-wide association studies (GWAS) have been shown to have the potential of explaining more of the "missing heritability" of complex human phenotypes by improving statistical approaches. Here, we applied a genetic-pleiotropy-informed conditional false discovery rate (cFDR) to capture additional polygenic effects associated with estimated glomerular filtration rate (creatinine) (eGFRcrea) and type 2 diabetes (T2D). The cFDR analysis improves the identification of pleiotropic variants by incorporating potentially shared genetic mechanisms between two related traits. The Q-Q and fold-enrichment plots were used to assess the enrichment of SNPs associated with eGFRcrea or T2D, and Manhattan plots were used for showing chromosomal locations of the significant loci detected. By applying the cFDR method, we newly identified 74 loci for eGFRcrea and 3 loci for T2D with the cFDR criterion of 0.05 compared with previous related GWAS studies. Four shared SNPs were detected to be associated with both eGFRcrea and T2D at the significant conjunction cFDR level of 0.05, and these shared SNPs had not been reported in previous studies. In addition, we used DAVID analysis to perform functional analysis of the shared SNPs' annotated genes and found their potential hidden associations with eGFRcrea and T2D. In this study, the cFDR method shows the feasibility to detect more genetic variants underlying the heritability of eGFRcrea and T2D, and the overlapping SNPs identified could be regarded as candidate loci that provide a thread of genetic mechanisms between eGFRcrea and T2D in future research. PMID- 29038866 TI - Complete genome sequence of a novel avian paramyxovirus isolated from wild birds in South Korea. AB - A novel avian paramyxovirus (APMV), Cheonsu1510, was isolated from wild bird feces in South Korea and serologically and genetically characterized. In hemagglutination inhibition tests, antiserum against Cheonsu1510 showed low reactivity with other APMVs and vice versa. The complete genome of Cheonsu1510 comprised 15,408 nucleotides, contained six open reading frames (3'-N-P-M-F-HN-L 5'), and showed low sequence identity to other APMVs (< 63%) and a unique genomic composition. Phylogenetic analysis revealed that Cheonsu1510 was related to but distinct from APMV-1, -9, and -15. These results suggest that Cheonsu1510 represents a new APMV serotype, APMV-17. PMID- 29038867 TI - Correction to: Transethnic insight into the genetics of glycaemic traits: fine mapping results from the Population Architecture using Genomics and Epidemiology (PAGE) consortium. AB - The authors regret that Yinchang Lu's name incorrectly included a middle initial in the author list. The details given in this erratum are correct. PMID- 29038869 TI - Expert's comment concerning Grand Rounds case entitled "Management of a high thoracic Chance Fracture" by A. Bourghli et al. (Eur Spine J; 2017. doi:10.1007/s00586-017-5247-8). PMID- 29038868 TI - The Global Spine Care Initiative: a review of reviews and recommendations for the non-invasive management of acute osteoporotic vertebral compression fracture pain in low- and middle-income communities. AB - PURPOSE: The purpose of this review was to develop recommendations for non invasive management of pain due to osteoporotic vertebral compression fractures (OVCF) that could be applied in medically underserved areas and low- and middle income countries. METHODS: We conducted a systematic review and best evidence synthesis of systematic reviews on the non-invasive management of OVCF. Eligible reviews were critically appraised using the Scottish Intercollegiate Guidelines Network criteria. Low risk of bias systematic reviews and high-quality primary studies that were identified in the reviews were used to develop recommendations. RESULTS: From 6 low risk of bias systematic reviews and 14 high-quality primary studies we established that for acute pain management, in addition to rest and analgesic medication, orthoses may provide temporary pain relief, in addition to early mobilization. Calcitonin can be considered as a supplement to analgesics; however, cost is of concern. Once acute pain control is achieved, exercise can be effective for improving function and quality of life. CONCLUSION: The findings from this study will help to inform the GSCI care pathway and model of care for use in medically underserved areas and low- and middle-income countries. Conservative management of acute pain and recovery of function in adults with OVCF should include early mobilization, exercise, spinal orthosis for pain relief, and calcitonin for analgesic-refractory acute pain. These slides can be retrieved under Electronic Supplementary Material. PMID- 29038870 TI - Chiropractic care and risk for acute lumbar disc herniation: a population-based self-controlled case series study. AB - PURPOSE: Chiropractic care is popular for low back pain, but may increase the risk for acute lumbar disc herniation (LDH). Low back pain is a common early (prodromal) symptom of LDH and commonly precedes LDH diagnosis. Our objective was to investigate the association between chiropractic care and acute LDH with early surgical intervention, and contrast this with the association between primary care physician (PCP) care and acute LDH with early surgery. METHODS: Using a self controlled case series design and population-based healthcare databases in Ontario, Canada, we investigated all adults with acute LDH requiring emergency department (ED) visit and early surgical intervention from April 1994 to December 2004. The relative incidence of acute LDH with early surgery in exposed periods after chiropractic visits relative to unexposed periods was estimated within individuals, and compared with the relative incidence of acute LDH with early surgery following PCP visits. RESULTS: 195 cases of acute LDH with early surgery (within 8 weeks) were identified in a population of more than 100 million person years. Strong positive associations were found between acute LDH and both chiropractic and PCP visits. The risk for acute LDH with early surgery associated with chiropractic visits was no higher than the risk associated with PCP visits. CONCLUSIONS: Both chiropractic and primary medical care were associated with an increased risk for acute LDH requiring ED visit and early surgery. Our analysis suggests that patients with prodromal back pain from a developing disc herniation likely seek healthcare from both chiropractors and PCPs before full clinical expression of acute LDH. We found no evidence of excess risk for acute LDH with early surgery associated with chiropractic compared with primary medical care. PMID- 29038871 TI - The Global Spine Care Initiative: a consensus process to develop and validate a stratification scheme for surgical care of spinal disorders as a guide for improved resource utilization in low- and middle-income communities. AB - PURPOSE: The purpose of this study was to develop a stratification scheme for surgical spinal care to serve as a framework for referrals and distribution of patients with spinal disorders. METHODS: We used a modified Delphi process. A literature search identified experts for the consensus panel and the panel was expanded by inviting spine surgeons known to be global opinion leaders. After creating a seed document of five hierarchical levels of surgical care, a four step modified Delphi process (question validation, collection of factors, evaluation of factors, re-evaluation of factors) was performed. RESULTS: Of 78 invited experts, 19 participated in round 1, and of the 19, 14 participated in 2, and 12 in 3 and 4. Consensus was fairly heterogeneous for levels of care 2-4 (moderate resources). Only simple assessment methods based on the clinical skills of the medical personnel were considered feasible and safe in low-resource settings. Diagnosis, staging, and treatment were deemed feasible and safe in a specialized spine center. Accurate diagnostic workup was deemed feasible and safe for lower levels of care complexity (from level 3 upwards) compared to non invasive procedures (level 4) and the full range of invasive procedures (level 5). CONCLUSION: This study introduces a five-level stratification scheme for the surgical care of spinal disorders. This stratification may provide input into the Global Spine Care Initiative care pathway that will be applied in medically underserved areas and low- and middle-income countries. These slides can be retrieved under Electronic Supplementary Material. PMID- 29038874 TI - Ultrasound-Guided Popliteal Sciatic Block Provides Adequate Analgesia During Urgent Endovascular Treatment of Critical Limb Ischemia with Resting Pain. AB - PURPOSE: To demonstrate feasibility and safety of ultrasound-guided popliteal sciatic nerve block for providing analgesia during urgent endovascular treatment of critical limb ischemia with resting pain. MATERIALS AND METHODS: Ultrasound guided popliteal sciatic blocks were performed by an interventional radiologist in angiography suite immediately prior to commencement of urgent endovascular treatment of 30 critical limb ischemia patients. Subjective pain levels prior to and following sciatic block were assessed using the visual analog scale (VAS). Need for any supplemental anxiolytics or analgesics during treatment was recorded. Post-procedural evaluation of patient and operator satisfaction levels regarding the intervention was also documented. RESULTS: Ultrasound-guided sciatic block provided adequate analgesia in all patients; VAS scores were 0 (no pain) in 87% and 1-3 (mild to annoying pain) in 13%. Two patients required anxiolytic premedication. Additional analgesia was not required during course of endovascular treatment of any patients. Time necessary to perform sciatic block ranged 3-9 (mean 5.9 +/- 1.3) min. Median number of needle attempts was 1 (range 1-3). Onset of satisfactory block ranged from 5 to 20 min (mean 9.4 +/- 2.6 min). Mean treatment time was 102.2 +/- 36.7 min, and balloon time was 22.4 +/- 6.1 min. Patient and operator satisfaction with pain control were very good in all cases. There were no procedure-related complications. CONCLUSIONS: Ultrasound guided popliteal sciatic block is a feasible and safe alternative for providing adequate analgesia during urgent endovascular treatment of critical limb ischemia with resting pain. LEVEL OF EVIDENCE: Level 4, case series. PMID- 29038872 TI - A novel method to understand tumor cell invasion: integrating extracellular matrix mimicking layers in microfluidic chips by "selective curing". AB - A major challenge in studying tumor cell invasion into its surrounding tissue is to identify the contribution of individual factors in the tumor microenvironment (TME) to the process. One of the important elements of the TME is the fibrous extracellular matrix (ECM) which is known to influence cancer cell invasion, but exactly how remains unclear. Therefore, there is a need for new models to unravel mechanisms behind the tumor-ECM interaction. In this article, we present a new microfabrication method, called selective curing, to integrate ECM-mimicking layers between two microfluidic channels. This method enables us to study the effect of 3D matrices with controlled architecture, beyond the conventionally used hydrogels, on cancer invasion in a controlled environment. As a proof of principle, we have integrated two electrospun Polycaprolactone (PCL) matrices with different fiber diameters in one chip. We then studied the 3D migration of MDA-MB-231 breast cancer cells into the matrices under the influence of a chemotactic gradient. The results show that neither the invasion distance nor the general cell morphology is affected significantly by the difference in fiber size of these matrices. The cells however do produce longer and more protrusions in the matrix with smaller fiber size. This microfluidic system enables us to study the influence of other factors in the TME on cancer development as well as other biological applications as it provides a controlled compartmentalized environment compatible with cell culturing. PMID- 29038875 TI - Sclerotherapy for Rectal Varices by a Small-Bore Needle Puncture Through the Greater Sciatic Foramen. AB - PURPOSE: To report a sclerotherapy technique for rectal varices consisting of direct puncture of the superior rectal vein with a small-bore sheathed needle via the greater sciatic foramen without insertion of a sheath or catheter. MATERIALS AND METHODS: The subjects of this retrospective study were three consecutive patients who underwent embolization of rectal varices, two for rupture of rectal varices and one for hepatic encephalopathy and hyperammonemia. A 5% solution of ethanolamine oleate with iodinated contrast agent (5% EOI) was injected through puncture of the superior rectal vein and carried in the blood flow, after which n butyl cyanoacrylate mixed with lipiodol (NBCA-Lip) was immediately injected to stop the blood flow. RESULTS: The 5% EOI and NBCA-Lip were successfully injected in all three patients. There was no movement of NBCA-Lip on plain radiographs or computed tomography (CT) immediately after injection, and the 5% EOI remained within the rectal varices. The mean procedure time was 53 min (42-60 min). On contrast-enhanced CT 1 month after the procedure, there was no contrast enhancement of the rectal varices that had been seen on preoperative CT in any of the three patients, confirming that the rectal varices had disappeared. CONCLUSION: Sclerotherapy for rectal varices using an approach for puncture of the superior rectal vein with a small-bore sheathed needle via the greater sciatic foramen was technically feasible and clinically effective. PMID- 29038876 TI - Complications and Retrieval Data of Vena Cava Filters Based on Specific Infrarenal Location. AB - PURPOSE: Although recommended placement of IVC filters is with their tips positioned at the level of the renal vein inflow, in practice, adherence is limited due to clinical situation or IVC anatomy. We seek to evaluate the indwelling and retrieval complications of IVC filters based on their specific position within the infrarenal IVC. MATERIALS AND METHODS: Retrospective, single institution study of 333 consecutive infrarenal vena cava filters placed by interventional radiologists in patients with an average age of 62.2 +/- 15.7 years was performed between 2013 and 2015. Primary indication was venous thromboembolic disease (n = 320, 96.1%). Filters were classified based on location of the apex below the lowest renal vein inflow on the procedural venogram: less than 1 cm (n = 180, 54.1%), 1-2 cm (n = 96, 28.8%), and greater than 2 cm (n = 57, 17.1%). Denali (n = 171, 51.4%) and Celect (n = 162, 48.6%) filters were evaluated. CT follow-up, indwelling complications, and retrieval data were obtained. RESULTS: Follow-up CT imaging performed for symptomatic indications occurred for 38.3% of filters placed < 1 cm below the lowest renal vein, 27.1% of filters placed 1-2 cm, and 36.8% placed > 2 cm (p = .16). There was no difference in caval strut penetration, penetration of adjacent viscera, time to penetration, filter migration, or tilt (p = .15, .27, .41, .57, .93). No filter fractures occurred. There was no difference in the incidence of breakthrough PE or complex filter retrieval (p = .83, .59). Only one retrieval failure occurred. CONCLUSIONS: This study suggests filter apex location within the infrarenal IVC, including placement > 2 cm below the level of the renal vein inflow, is not associated with differences in indwelling or retrieval complications. LEVEL OF EVIDENCE: Level 3 non-randomized controlled follow-up study. PMID- 29038877 TI - The Assessment of the Risk of Acute Kidney Injury in Patients Undergoing an Urgent Endovascular Treatment Due to Severe Renal Bleeding. AB - INTRODUCTION: This study was designed to assess the clinical factors associated with the development of acute kidney injury (AKI) in patients undergoing endovascular treatment during the course of severe renal bleeding. METHODS: A retrospective analysis was performed of 36 consecutive patients who were treated endovascularly between January 2006 and December 2016 for anemia caused by iatrogenic (26 pts) or posttraumatic (10 pts) renal bleeding. Typical patient data, baseline, and postprocedural blood parameters were evaluated. As a predictor of AKI occurrence, SCr0 > 1.5 mg/dL, eGFR < 60 ml/min/1.73 m2, and Mehran score were evaluated. RESULTS: Fourteen patients (39%) developed AKI after CM injection. Time of hospitalization (p = 0.02), hypotension (p = 0.005), dialysis (p = 0.05), blood transfusions (p = 0.028), amount of blood received (p = 0.003), red blood units > 3 (RBU) (p = 0.032), and CM > 150 ml (p = 0.014) were related to AKI occurrence. The Mehran score may be used as a predictor of AKI occurrence (p = 0.022). The SCr > 1.5 mg/dL and eGFR < 60 ml/min/1.73 m2 were not statistically significant. Selective renal embolization (mean 34% loss of renal tissue) does not lead to AKI. CONCLUSIONS: Hypotension, anemia requiring blood transfusion, and administration of CM exceeding 150 ml poses higher risk of AKI development, which leads to longer hospital stay and need of dialysis. The Mehran score may be used as predictor of AKI occurrence. Up to one third of the kidney was embolized with no AKI linked to the procedure. The concern of AKI occurrence should not be a cause of delay of endovascular treatment. PMID- 29038878 TI - Transjugular Intrahepatic Portosystemic Shunt Reduction Using the GORE VIATORR Controlled Expansion Endoprosthesis: Hemodynamics of Reducing an Established 10 mm TIPS to 8-mm in Diameter. PMID- 29038879 TI - Acute Carotid Artery Stent Thrombosis. PMID- 29038880 TI - CT-Guided, Percutaneous Ethanol Sympatholysis for Primary Hyperhidrosis. AB - PURPOSE: Primary hyperhidrosis (PH) typically involves the craniofacial (CF) or axillary-palmar (AP) region. Our purpose was to determine the safety and efficacy of CT-guided sympatholysis for treating PH. METHODS: In this prospective study, 39 consecutive patients with CF or AP PH were referred for percutaneous sympatholysis. Procedures were performed under CT guidance and minimal sedation. We treated level T2 for CF hyperhidrosis and T2, T3, and T4 for AP hyperhidrosis. Twenty-two-gauge spinal needles were placed bilaterally at the anterolateral surface of the vertebral body. After infiltration of lidocaine (2 mL), a neurological test was performed to exclude Horner syndrome. Neurolysis was effected with ethanol (2 mL) via each needle. Patients were discharged 1 h postoperatively and followed up at 1 week, 1 month, and then as clinically indicated. Disease-free Kaplan-Meier curves were compared using log-rank tests. Complications were categorized according to Common Terminology Criteria for Adverse Events. RESULTS: One patient failed the lidocaine test and was excluded. Of the 38 patients included in this cohort (16 men), mean age was 38 years (range 18-61), and mean follow-up was 18 months (range 1-36). Technical success for these 38 patients was 100%. Seventeen patients had symptom recurrence, 14 of whom were retreated. Efficacy was 72% for CF hyperhidrosis, 50% for AP hyperhidrosis, and 60% overall. There were three major complications (two pneumothoraces, one severe intercostal neuralgia requiring medication). CONCLUSIONS: CT-guided sympatholysis for CF or AP PH had 18-month efficacy rates of 72 and 50%, with a favorable risk profile. LEVEL OF EVIDENCE: Level 2b. PMID- 29038881 TI - DownRegulated SOX4 Expression Suppresses Cell Proliferation, Migration, and Induces Apoptosis in Osteosarcoma In Vitro and In Vivo. AB - The SOX4 transcription factor is involved in various cellular processes, such as embryonic development and differentiation. Deregulated expression of Sox4 in several human cancers has been reported to date, but its biological functions in the progression of osteosarcoma remain unclear. In this study, we found that the expression levels of SOX4 protein were significantly higher in high-grade osteosarcoma tissues and metastatic osteosarcoma tissues. Its overexpression was associated with poor prognosis in osteosarcoma. Knockdown of the SOX4 gene in the osteosarcoma cell lines resulted in decreased cell proliferation, migration, invasion, and induced apoptosis. After SOX4 gene silencing, the protein expression levels of Bax, Caspase-3, and P53 in osteosarcoma cells were significantly elevated, while the protein expression levels of Bcl-2, MMP2, and MMP9 were obviously decreased. In vivo analysis in nude mice further confirmed that knockdown of SOX4 suppressed tumor growth. In conclusion, SOX4 appears to be an important tumor oncogene in the regulation of osteosarcoma cell proliferation, apoptosis, and invasion, and it may be a potential target for effective osteosarcoma therapy. PMID- 29038884 TI - [Progressive encephalomyelitis with rigidity and myoclonus : Stiff tongue as initial symptom]. PMID- 29038883 TI - [Multiple sclerosis in childhood and adolescence : Complex, chronic and differentiated]. AB - Pediatric multiple sclerosis (MS) is one of the most important acquired neurological disorders in childhood and adolescence. A timely recognition, diagnosis and treatment are of utmost importance. This article highlights the current state of knowledge on the etiology, pathogenesis, diagnosis, clinical presentation and treatment in childhood. Although the rate of progression of disability in the early years is slower in younger patients compared to adults, a disease-modifying therapy should be started once MS is diagnosed. PMID- 29038882 TI - Etelcalcetide, A Novel Calcimimetic, Prevents Vascular Calcification in A Rat Model of Renal Insufficiency with Secondary Hyperparathyroidism. AB - Etelcalcetide, a novel peptide agonist of the calcium-sensing receptor, prevents vascular calcification in a rat model of renal insufficiency with secondary hyperparathyroidism. Vascular calcification occurs frequently in patients with chronic kidney disease (CKD) and is a consequence of impaired mineral homeostasis and secondary hyperparathyroidism (SHPT). Etelcalcetide substantially lowers parathyroid hormone (PTH) and fibroblast growth factor-23 (FGF23) levels in SHPT patients on hemodialysis. This study compared the effects of etelcalcetide and paricalcitol on vascular calcification in rats with adenine-induced CKD and SHPT. Uremia and SHPT were induced in male Wistar rats fed a diet supplemented with 0.75% adenine for 4 weeks. Rats were injected with vehicle, etelcalcetide, or paricalcitol for 4 weeks from the beginning of adenine diet. Rats fed an adenine free diet were included as nonuremic controls. Similar reductions in plasma PTH and parathyroid chief cell proliferation were observed in both etelcalcetide- and paricalcitol-treated rats. Serum calcium and phosphorus were significantly lower in etelcalcetide-treated uremic rats and was unchanged in paricalcitol-treated rats. Both serum FGF23 and aortic calcium content were significantly lower in etelcalcetide-treated uremic rats compared with either vehicle- or paricalcitol treated uremic rats. The degree of aortic calcium content for etelcalcetide treated rats was similar to that in nonuremic controls and corroborated findings of lack of histologic aortic mineralization in those groups. In conclusion, etelcalcetide and paricalcitol similarly attenuated progression of SHPT in an adenine rat model of CKD. However, etelcalcetide differentially prevented vascular calcification, at least in part, due to reductions in serum FGF23, calcium, and phosphorus levels. PMID- 29038885 TI - The economic burden of chronic neurological disease. PMID- 29038886 TI - Forces generated in stabbing attacks: an evaluation of the utility of the mild, moderate and severe scale. AB - The commonest way of killing in the UK is by a sharp instrument. Knight reported in 1975 that it is impossible to discern with any degree of certainty the degree of force used to create a stab wound. Despite this, expert witnesses continue to approximate the degree of force used for their reports and evidence in court. It is usually subjectively categorized as mild, moderate or severe, based solely on the examination of the wound. We undertook a study considering forces generated in a range of blunt trauma actions, using a novel force plate dynamometer to measure the peak forces obtained by adult male and female volunteers. We then studied forces generated by stabbing skin simulants and porcine samples with knives and screwdrivers. Men generated more force than women during stabbings which was found to be equivalent to somewhere between the blunt trauma actions of pushing a button to a single-handed push. When asked to stab using what they thought was mild, moderate and severe force, although volunteers were able to actively decide the force used, the actual force was found to be influenced by the weapon, sex of the individual, hand used and biological/anatomical site penetrated. This study shows that the forces generated by volunteers in mild, moderate and severe stabbing tests in almost all cases were significantly greater than the forces required for skin penetration. We suggest that the use of subjective force scales is inappropriate. Rather than use of a subjective scale, we suggest that the force required in any stabbing requires investigation in four areas: the tip radius of the weapon, minimal force required for penetration, the sex of the assailant and whether the force required for penetration is greater than that that can be generated by a person stabbing. This allows for the use of an evidence-based two-tier scale to suggest the force required. PMID- 29038887 TI - Mutations in INF2 may be associated with renal histology other than focal segmental glomerulosclerosis. AB - BACKGROUND: In 2010, INF2 mutations were associated with autosomal-dominant focal segmental glomerulosclerosis (FSGS), clinically presenting with moderate proteinuria in adolescence. However, in the meantime, cases with more severe clinical courses have been described, including progression to end-stage renal disease (ESRD) during childhood. INF2 mutations in patients with isolated FSGS are clustered in exons 2 to 4, encoding the diaphanous inhibitory domain, involved in the regulation of the podocyte actin cytoskeleton. METHODS: We report a family with 14 affected individuals (autosomal-dominant mode of inheritance), most of whom presented with nephrotic-range proteinuria, hypertension, and progressive renal failure. Four members received a kidney transplant without disease recurrence. Two patients underwent renal biopsy with the result of minimal-change glomerulopathy and IgA nephropathy respectively. We performed mutational analysis of ACTN4, CD2AP, COQ6, INF2, LAMB2, NPHS1, NPHS2, PLCE1, TRPC6, and WT1 in the index patient by next-generation sequencing. Additionally, in 6 affected and 2 unaffected family members target diagnostics were performed. RESULTS: We identified a novel heterozygous mutation c.490G>C (p.(Ala164Pro) in exon 3 of the INF2 gene in the index patient and 6 additionally examined affected family members. In silico analysis predicted it as "probably damaging". Additionally, three patients and 2 unaffected relatives harbored a novel heterozygous variant in ACTN4 (c.1149C>G, p.(Ile383Met)) with uncertain pathogenicity. CONCLUSION: Mutations in INF2 are associated with familial proteinuric diseases - irrespective of the presence of FSGS and in the case of rapid disease progression. Therefore, mutational analysis should be considered in patients with renal histology other than FSGS and severe renal phenotype. PMID- 29038889 TI - Potential factors affecting lung inhomogeneity in acute respiratory distress syndrome. PMID- 29038888 TI - Simultaneous whole-body 18F-PSMA-1007-PET/MRI with integrated high-resolution multiparametric imaging of the prostatic fossa for comprehensive oncological staging of patients with prostate cancer: a pilot study. AB - INTRODUCTION: The aim of the present study was to explore the clinical feasibility and reproducibility of a comprehensive whole-body 18F-PSMA-1007 PET/MRI protocol for imaging prostate cancer (PC) patients. METHODS: Eight patients with high-risk biopsy-proven PC underwent a whole-body PET/MRI (3 h p.i.) including a multi-parametric prostate MRI after 18F-PSMA-1007-PET/CT (1 h p.i.) which served as reference. Seven patients presented with non-treated PC, whereas one patient presented with biochemical recurrence. SUVmean-quantification was performed using a 3D-isocontour volume-of-interest. Imaging data was consulted for TNM-staging and compared with histopathology. PC was confirmed in 4/7 patients additionally by histopathology after surgery. PET-artifacts, co registration of pelvic PET/MRI and MRI-data were assessed (PI-RADS 2.0). RESULTS: The examinations were well accepted by patients and comprised 1 h. SUVmean-values between PET/CT (1 h p.i.) and PET/MRI (3 h p.i.) were significantly correlated (p < 0.0001, respectively) and similar to literature of 18F-PSMA-1007-PET/CT 1 h vs 3 h p.i. The dominant intraprostatic lesion could be detected in all seven patients in both PET and MRI. T2c, T3a, T3b and T4 features were detected complimentarily by PET and MRI in five patients. PET/MRI demonstrated moderate photopenic PET-artifacts surrounding liver and kidneys representing high-contrast areas, no PET-artifacts were observed for PET/CT. Simultaneous PET-readout during prostate MRI achieved optimal co-registration results. CONCLUSIONS: The presented 18F-PSMA-1007-PET/MRI protocol combines efficient whole-body assessment with high resolution co-registered PET/MRI of the prostatic fossa for comprehensive oncological staging of patients with PC. PMID- 29038890 TI - Massive air embolism in the abdominal aorta. PMID- 29038892 TI - [Pityriasis amiantacea and folliculitis decalvans : An unusual manifestation associated with antitumor necrosis factor-alpha therapy]. AB - We report on a 21-year-old woman with a 3-year history of crusts and erosions on her scalp that had appeared after starting treatment with adalimumab due to Crohn's disease. By clinicopathological correlation pityriasis amiantacea with underlying folliculitis decalvans was diagnosed. Topical and systemic antibiotic treatment showed rapid response. The occurrence of pityriasis amiantacea in folliculitis decalvans associated with tumor necrosis factor (TNF)-alpha inhibitor therapy is remarkable and highlights the ambivalent role of TNF-alpha in diseases with immunological dysfunctions in combination with infections. PMID- 29038893 TI - [Daylight photodynamic therapy : Back to the future?] PMID- 29038891 TI - Increase in circulating holotranscobalamin after oral administration of cyanocobalamin or hydroxocobalamin in healthy adults with low and normal cobalamin status. AB - PURPOSE: To investigate the absorption of synthetic cyanocobalamin and natural occurring hydroxocobalamin in populations with low and normal cobalamin (vitamin B12) status. METHODS: We included adults with low (n = 59) and normal (n = 42) cobalamin status and measured the change in serum holotranscobalamin (DeltaholoTC) before and after 2 day administration of different doses of cyanocobalamin and hydroxocobalamin (CobaSorb test). In the low status group, the test was performed using a cross-over design with identical doses of both cobalamin forms (1.5, 3, and 6 ug, respectively). In the normal status group, the test was performed with either 3, 6, and 9 ug cyanocobalamin (n = 28), or with 9 ug cyanocobalamin and 9 ug hydroxocobalamin (n = 14). RESULTS: In both groups, median DeltaholoTC (pmol/L) was higher after intake of cyanocobalamin compared to (hydroxocobalamin) [low status: 1.5 ug: 19 (6); 3 ug: 23 (7); 6 ug: 30 (14); normal status: 9 ug: 30 (13) pmol/L]. Independent of B12 form, no difference was observed in DeltaholoTC between those receiving 1.5 and 3 ug in the low status group or 6 and 9 ug cyanocobalamin in the normal status group. However, in both groups, administration of 6 ug cobalamin resulted in a significant higher DeltaholoTC than did 3 ug [low status: p = 0.02 (0.009) for cyanocobalamin (hydroxocobalamin); normal status: p = 0.03 for cyanocobalamin]. CONCLUSIONS: Administration of cyanocobalamin resulted in a more than twofold increase in holoTC in comparison with hydroxocobalamin. The absorptive capacity was reached only by doses above 3 ug cobalamin. Our results underscore the importance of using the same form of cobalamin when comparing uptake under different conditions. CLINICAL TRIAL REGISTRY NUMBER: NCT02832726 at https://clinicaltrials.gov and 2016/09/012147 at Clinical Trials Registry India. PMID- 29038894 TI - The supraorbital eyebrow approach for removal of craniopharyngioma in children: a case series. AB - OBJECTIVE: Craniopharyngiomas can be a surgical challenge for the pediatric neurosurgeon. Ideally, total removal must be achieved. However, the need to reduce surgical morbidity and preserve quality of life has led to a number of neurosurgical approaches in order to attain this goal. The aim of this article is to present an alternative surgical approach to these lesions and to provide the rationale for this technique. MATERIAL AND METHODS: Medical charts and operative records of eight pediatric patients harboring craniopharyngiomas who underwent surgical treatment using a supraorbital eyebrow approach (SOA) were reviewed from 2014 to 2016. Only patients younger than 18 years with a minimum follow-up of 12 months were included in this study. Using pre-operative magnetic resonance (MRI) scans, tumors were classified according to their degree of hypothalamic involvement. The surgical technique is also described in detail. RESULTS: The study group included six males and two females with a mean age of 10 years (range, 2-16 years). The SOA was used successfully in elective surgery of eight craniopharyngiomas. The hypothalamus was displaced by the tumor in three patients and severely involved in five patients. Subtotal resection was undertaken in six patients, whereas gross-total resection was achieved in two. Endoscopic assistance was used after standard microscopic visualization in two out of eight cases. Cosmetic outcomes were excellent, and the complication rate related to the surgical procedure was quite low, apart from diabetes insipidus (which occurred in three out of the eight patients). In one patient, a large subdural collection needed surgery for evacuation. Mean follow-up was 23.2 months (range, 12-36 months). Additionally, no CSF leak or wound infection was identified. CONCLUSIONS: The supraorbital eyebrow approach is an alternative route to operate on craniopharyngiomas in properly selected cases of all pediatric age ranges, from infants to teenagers. There is sufficient working space for the endoscope and all instruments, allowing for endoscopic assistance and bimanual surgical technique. Cosmetic results are excellent, and complications related to the approach are minimal. PMID- 29038895 TI - The network remains. AB - Eric Davidson was a legend both in his science and his personality. He inspired and challenged a new generation of developmental biologists and I was lucky to be one of them. He changed the way we think about biological interactions by synthesizing a large scale, almost incomprehensible set of data into a causal model of a gene regulatory network. While his death leaves a big hole in our lives, his contribution to the conceptualization of regulatory biology will inspire developmental and evolutionary biologists for decades to come. PMID- 29038896 TI - Inducible ATF3-NFAT axis aggravates podocyte injury. AB - : Podocyte injury and loss contribute to proteinuria, glomerulosclerosis, and eventually kidney failure. Activating transcription factor 3 (ATF3) is a stress inducible transcription factor that is transiently expressed following stimulation. However, we show for the first time an induction of ATF3 in podocytes from patients with chronic kidney disease, including minimal change disease, focal segmental glomerulosclerosis, and diabetic nephropathy. The role of ATF3 induction in podocytes under chronic conditions is currently unknown. Compared with the control (C57 or BKS), ATF3 expression was elevated in animal model of proteinuria (LPS-treated C57 mice) and the model of diabetic nephropathy (db/db mice). Similarly, ATF3 was increased in high glucose (HG)-treated, lipopolysaccharide (LPS)-treated, or Ionomycin-treated podocytes in vitro. Overexpression of ATF3 increased podocyte apoptosis and decreased expression of podocin, the cell marker of podocyte; in contrast, ATF3-small interfering RNA knockdown reduced podocyte apoptosis and increased podocin expression. The translocation of ATF3 to the nucleus was increased upon stimulation. ATF3 directly modulates the regulation of NFATc1 gene promoter activity and alters the expression of Wnt6 and Fzd9, direct target genes of NFATc1 signaling. The ATF3 binding site of NFATc1 gene promoter is located at the region 671-775 base pairs upstream of the transcription start site. These results indicate a novel inducible axis of ATF3-NFAT in podocyte injury and loss. KEY MESSAGES: * The stress factor ATF3 is induced in podocytes from proteinuric patients, including diabetes. * ATF3 increased podocyte apoptosis and injury. * ATF3 directly modulates the regulation of NFATc1 gene promoter activity. PMID- 29038897 TI - [Acute achilles tendon rupture : State of the art]. AB - The most favorable treatment for acute Achilles tendon ruptures remains controversial. In particular, three key questions are intensively debated: is operative or non-operative treatment superior? If surgery is performed, should open or minimally invasive percutaneous techniques be used? How should the follow up treatment be carried out? The aim of this article is to answer these essential questions based on the currently available evidence. Non-operative treatment leads to a higher rate of re-ruptures and inferior functional results when compared to operative treatment. The major disadvantage of open surgery is the increased risk of wound healing problems and wound infections. Due to the development of minimally invasive percutaneous techniques, complication rates could be significantly reduced and patient satisfaction could be significantly improved, without increasing the risk of re-ruptures. The functional outcome is still partially unsatisfactory independent of the type of treatment. This is particularly expressed in weakness of the gastrocnemius-soleus muscle complex; therefore, the follow-up treatment is of fundamental importance. The available evidence clearly underlines the importance of early weight bearing and mobilization of the ankle joint, as it is safe and leads to better function, patient satisfaction and faster return to work or sport, compared with partial weight bearing and immobilization. Nevertheless, treatment protocols vary greatly with the majority still carrying out open suture and immobilizing follow-up treatment with fixed plantar flexion. Based on the available data the authors recommend minimally invasive percutaneous suture of the tendon followed by progressive functional rehabilitation. Implementation of the available evidence into routine practice is the next important step for successful treatment of this challenging injury. PMID- 29038898 TI - Molecular and immunological characterisation of tropomyosin from Anisakis pegreffii. AB - Tropomyosin (TM) is a major allergen in shellfish, known to cross-react with mite, cockroach and/or some roundworm (nematode) TM. In this study, we aimed to express and purify TM from the parasitic nematode Anisakis pegreffii and also to characterise its cross-reactivity with TM from shellfish. A. pegreffii was isolated from the flathead tiger fish (Neoplatycephalus richardsoni) and characterised using single-strand conformation polymorphism (SSCP)-based sequencing of the first and second internal transcribed spacers (ITS-1 and ITS-2) of nuclear ribosomal DNA. The recombinant tropomyosin (rTM) of A. pegreffii was expressed, purified and confirmed by immunohistochemistry, sequencing and LC MS/MS analyses. Immunohistochemistry showed the muscle and the base layer of the third-stage larvae (L3) of A. pegreffii as the location of TM in A. pegreffii. The molecular relationship of TM of A. pegreffii with homologs from other nematodes and crustaceans was inferred from phylogenetic analysis. Immunogenicity of TM from A. pegreffii was tested by immunoblotting, which showed that rTM from A. pegreffii binds to IgE from sera of patients with allergy to crustaceans. Immunoblotting also showed that the anti-TM monoclonal antibody (MAb) did not recognise rTM from A. pegreffii. The rTM from A. pegreffii was, however, recognised by anti-TM polyclonal antibodies (PAbs) as well as anti-crustacean polyclonal antibodies (PAbs). The detection of specific serum IgE antibody against parasite TM has been proposed as a useful approach for the diagnosis of parasite-induced allergy. The findings of this study merit further exploration of the cross-reactive allergenic proteins of Anisakis for improved, future diagnosis of allergenic diseases. PMID- 29038900 TI - Correction to: Dietary Interventions and Multiple Sclerosis. AB - The original version of this article contains an error in the second sentence of the second paragraph of the Paleolithic Diet section. PMID- 29038899 TI - The Use of Primary Prevention Statin Therapy in Those Predisposed to Atherosclerosis. AB - PURPOSE OF REVIEW: Many guidelines exist for the use of statins in the primary prevention of atherosclerotic cardiovascular disease (ASCVD). Few have focused on disease specific states that predispose to ASCVD. This review is intended to focus on the recommendations and evidence in inflammatory diseases that predispose to an increased risk of ASCVD beyond what conventional cardiac risk scores would predict. RECENT FINDINGS: Certain autoimmune inflammatory diseases such as rheumatoid arthritis (RA), systemic lupus erythematous (SLE), and psoriasis/psoriatic arthritis have all been shown to increase the risk of ASCVD. Other diseases such as human immunodeficiency virus (HIV) and mediastinal radiation have also been correlated with increased ASCVD. In RA and HIV, the evidence suggests a benefit to added statin therapy and society guidelines favor early initiation. The evidence for statin therapy in RA is limited to observational studies with small secondary analysis. In HIV, there is a large ongoing clinical trial to assess efficacy. In those with psoriasis and psoriatic arthritis, there is limited evidence for or against statin therapy independent of a calculated cardiac risk score. Finally, in SLE and in those with exposure to mediastinal radiation, cardiac events remain high, but evidence is limited on the beneficial effects of statin therapy. There are many individuals who have an increased risk for ASCVD above what is predicted from a cardiac risk score. It would be beneficial to create risk prediction models with statin therapy recommendations that are tailored to those predisposed to accelerated atherosclerosis. PMID- 29038901 TI - Pre-peritoneal local anaesthetic does not reduce post-operative pain in laparoscopic total extra-peritoneal inguinal hernia repair: double-blinded randomized controlled trial. AB - PURPOSE: Laparoscopic total extra-peritoneal hernia repair (TEP) is associated with less post-operative pain and earlier return to normal activity compared to open hernia repair (OHP). Despite this, post-operative pain remains a major issue. The aim of this double-blinded randomized controlled trial was to identify whether the instillation of local anaesthetic in the pre-peritoneal space improves pain scores following TEP. METHODS: One hundred patients undergoing laparoscopic total pre-peritoneal hernia repair (TEP) between the years of 2009 2014 were included. Patients were randomly assigned to receive either 20 mL of normal saline or 0.25% bupivacaine with adrenaline. Visual analogue scores (VAS 0 10) were recorded post-operatively at the 4 h, 1 day, 2 weeks, and 6 week mark. Secondary endpoints included complications, time to discharge, and return to normal activity. RESULTS: 51 patients were allocated to the local group. 49 patients were allocated to the placebo group. The baseline characteristics and demographics of patients in both groups were comparable. Patients in the local group had similar VAS scores compared to the placebo group at both 4 h (1.1 vs. 1.4, respectively; p = 0.19) and 24 h (2.1 vs. 2.3; p = 0.63). No statistically significant difference noted in other primary and secondary outcomes. CONCLUSION: Although the concept of pre-peritoneal local anaesthetic instillation following laparoscopic TEP is attractive, this appropriately powered study has failed to show any advantage in pain scores at 4 and 24 h. The pain scores recorded, however, were remarkably low in both groups. PMID- 29038902 TI - [Urinary tract infections : What has been confirmed in therapy?] AB - Urinary tract infections (UTIs) affect approximately 150 million people worldwide per year, causing annual health costs of over three billion dollars just in the USA. Every second woman experiences at least one UTI in her lifetime, with every one in four experiencing recurrence. Uncomplicated infections like single or recurrent cystitis and pyelonephritis can be distinguished from complicated disease. UTIs in men can spread to the male glands, causing prostatitis and epididymitis. Antibiotic therapy is the standard procedure for UTIs. However, the extensive and sometimes irrational use of antibiotics for the treatment of infections has led to an increase in the incidence of multiresistant pathogens in recent years. Therefore, preventive nonantibiotic approaches are of great interest. This article provides an overview of the current management of urological infections as well as an outline of nonantibiotic preventive treatment modalities. PMID- 29038903 TI - [Nontuberculous mycobacteria in sputum : Recommendations for diagnosis and treatment]. AB - Pulmonary diseases caused by nontuberculous mycobacteria (NTM) have increased over the last years and decades in Germany and also worldwide. Because the disease is more frequent in patients with immunodeficiencies and chronic respiratory diseases, e.g. bronchiectasis, advanced chronic obstructive lung disease (COPD) and cystic fibrosis (CF), an infection with mycobacteria should always be considered in this patient group. The detection in sputum alone is not an indication for treatment but the correct diagnosis should be based on the appropriate clinical symptoms as well as radiological and microbiological criteria. The diagnosis is often delayed because the symptoms are unspecific. The treatment of pulmonary NTM disease is difficult and tedious and for these reasons is often prematurely terminated. Adherence of treating physicians to the guidelines is also conspicuously low. Before starting treatment, it is important to carefully define the goals and clarify the risks and benefits of the treatment with the patient. As adverse toxic events can occur during treatment, it should be closely monitored. In the case of an infrequent pathogen or a severe course of the disease, referral to an NTM specialist center should be undertaken. PMID- 29038904 TI - The ability of emergency physicians to diagnose and score acute pancreatitis on computed tomography: authors' response. PMID- 29038905 TI - Recent advances in production of 5-aminolevulinic acid using biological strategies. AB - 5-Aminolevulinic acid (5-ALA) is the precursor for the biosynthesis of tetrapyrrole compounds and has broad applications in the medical and agricultural fields. Because of the disadvantages of chemical synthesis methods, microbial production of 5-ALA has drawn intensive attention and has been regarded as an alternative in the last years, especially with the rapid development of metabolic engineering and synthetic biology. In this mini-review, recent advances on the application and microbial production of 5-ALA using novel biological approaches (such as whole-cell enzymatic-transformation, metabolic pathway engineering and cell-free process) are described and discussed in detail. In addition, the challenges and prospects of synthetic biology are discussed. PMID- 29038908 TI - Eric Davidson, his philosophy, and the history of science. AB - Eric Davidson, a passionate molecular developmental biologist and intellectual, believed that conceptual advances in the sciences should be based on knowledge of conceptual history. Convinced of the superiority of a causal-analytical approach over other methods, he succeeded in successfully applying this approach to the complex feature of organismal development by introducing the far-reaching concept of developmental Gene Regulatory Networks. This essay reviews Davidson's philosophy, his support for the history of science, and some aspects of his scientific personality. PMID- 29038907 TI - Muscular vasculitis confined to lower limbs: description of two case reports and a review of the literature. AB - Muscular involvement is common during systemic vasculitides, such as polyarteritis nodosa. However, in rare cases, muscular involvement can be the only clinically evident feature of the disease. The clinical pattern of isolated muscular vasculitis may mimic several other inflammatory muscle disorders, such as idiopathic inflammatory myositis, and may represent a challenge in differential diagnosis. Herewith, we present two clinical cases as examples of peculiar clinical and histopathological characteristics of isolated muscular vasculitis. Our patients were successfully treated with steroids and immunosuppressive agents. Moreover, we provide a review of the recent existing medical literature. Our cases suggest the importance of performing muscle biopsy in patients with muscular symptoms to guide the diagnosis and the treatment. PMID- 29038906 TI - PCSK9 Mutations in Familial Hypercholesterolemia: from a Groundbreaking Discovery to Anti-PCSK9 Therapies. AB - PURPOSE OF REVIEW: In 2003, Abifadel et al. (Nat. Genet. 34:154-156, 2003) identified PCSK9, encoding proprotein convertase subtilisin/kexin type 9, as the third causal gene for autosomal dominant hypercholesterolemia. This review focuses on the main steps from this major breakthrough in familial hypercholesterolemia (FH) to the latest clinical trials with the anti-PCSK9 antibodies. RECENT FINDINGS: The year 2015 was remarkable in cardiovascular disease through the field of cholesterol. Nearly 30 years after the discovery of statins, a new class of effective lipid-lowering drugs has emerged: the anti PCSK9 antibodies. The discovery of the first gain-of-function mutations of PCSK9 in FH rapidly became the center of interest of researchers worldwide. Preclinical and clinical studies launched by pharmaceutical companies led to the first three anti-PCSK9 antibodies, two of which (evolocumab and alirocumab) reduce LDL cholesterol levels by 50-60% and received FDA and European Medicines Agency approvals in 2015 on top of statin therapy. Recently, results of the Further Cardiovascular Outcomes Research With PCSK9 Inhibition in Subjects With Elevated Risk (FOURIER) trial, the outcome trial of evolocumab over 2.2 years, showed a reduction of 15-20% in the risk of major cardiovascular outcomes in high-risk patients receiving statin therapy. Results of ODYSSEY OUTCOMES trial, evaluating the effect of alirocumab in 18,000 patients with established CVD are also eagerly awaited in 2018. The evolution of research on PCSK9, starting from the discovery of the first set of mutations in PCSK9 in FH in 2003, is an amazing example of successful translational research. It shows how rigorous and powered genetic analyses can lead to the discovery of a new class of lipid-lowering drugs that give hope in fighting high cholesterol levels and their cardiovascular complications. PMID- 29038909 TI - Citrus plants exude proline and phytohormones under abiotic stress conditions. AB - KEY MESSAGE: This article describes the root exudation of proline and phytohormones in citrus and their involvement in salt- and heat-stress responses. Plants are constantly releasing several compounds to the rhizosphere through their roots, including primary and secondary metabolites. Root exudation can be affected by growth conditions, including pH, nutrient availability, soil salinity, or temperature. In vitro-cultured plants of two citrus genotypes with contrasting tolerance to salt- and heat-stress conditions were used as plant material. Proline and phytohormone contents in root exudates from plants subjected to salt or high-temperature conditions were evaluated. In addition, tissue damage and lipid peroxidation together with endogenous levels of chloride, proline, and phytohormones were determined in roots and shoots. Proline was released in larger quantities to the rhizosphere when plants were subjected to salt or heat stress. In each stress condition, the concentration of this amino acid was higher in the exudates obtained from plants tolerant to this particular stress condition. On the other hand, root exudation of phytohormones salicylic acid, indole acetic acid, abscisic acid, and jasmonic acid generally increased under both adverse conditions. Results confirm a phytohormone exudation in citrus plants, which had not been described previously and can have an important role in the rhizosphere communication. Moreover, stress conditions and the different tolerance of each genotype to the particular stress significantly modify the exudation pattern both quantitatively and qualitatively. PMID- 29038910 TI - Analysis of somaclonal variation in transgenic and regenerated plants of Arabidopsis thaliana using methylation related metAFLP and TMD markers. AB - KEY MESSAGE: We provide evidence that nucleotide sequence and methylation status changes occur in the Arabidopsis genome during in vitro tissue culture at a frequency high enough to represent an important source of variation. Somaclonal variation is a general consequence of the tissue culture process that has to be analyzed specifically when regenerated plants are obtained in any plant species. Currently, there are few studies about the variability comprising sequence changes and methylation status at the DNA level, generated by the culture of A. thaliana cells and tissues. In this work, two types of highly reproducible molecular markers, modified methylation sensitive AFLP (metAFLP) and transposon methylation display (TMD) have been used for the first time in this species to analyze the nucleotide and cytosine methylation changes induced by transformation and tissue culture protocols. We found significantly higher average methylation values (7.5%) in regenerated and transgenic plants when compared to values obtained from seed derived plants (3.2%) and that the main component of the somaclonal variation present in Arabidopsis clonal plants is genetic rather than epigenetic. However, we have found that the Arabidopsis regenerated and transgenic plants had a higher number of non-fully methylated sites flanking transposable elements than the control plants, and therefore, their mobilization can be facilitated. These data provide further evidence that changes in nucleotide sequence and methylation status occur in the Arabidopsis genome during in vitro tissue culture frequently enough to be an important source of variation in this species. PMID- 29038911 TI - Negative regulation of daptomycin production by DepR2, an ArsR-family transcriptional factor. AB - Daptomycin, a lipopeptide antibiotic potently active against Gram-positive bacterial pathogens, is produced by Streptomyces roseosporus, but the transcriptional regulation on its biosynthesis is not fully understood. Here, we report that DepR2, an ArsR-family transcriptional regulator isolated previously by DNA-affinity purification, interacts directly with dptEp, the major promoter of the daptomycin gene cluster. DepR2 binds to an imperfect palindromic sequence at the very upstream of dptEp. Meanwhile, higher dptEp activities were consistently observed in the DeltadepR2 mutant, correlating with a nearly 2.5 fold increased production of daptomycin and three structurally related secondary metabolites A21978C1-3. Thus, our data suggest that the ArsR-family transcriptional regulator DepR2 negatively regulates production of daptomycin by directly repressing the expression of its gene cluster in S. roseosporus. To the best of our knowledge, this is the first report to show the involvement of an ArsR-family regulator in the direct regulation of secondary metabolite biosynthesis in Streptomyces. PMID- 29038912 TI - [Erratum to: The 2016 update of the S3 guideline for malignant tumours of the ovary : Role of pathology in diagnosis, therapy and clinical management of epithelial tumours]. PMID- 29038914 TI - Homage to Eric Davidson. AB - The Britten-Davidson model of genetic regulation was well received by American molecular biologists and embryologists, but not by the members of the French School of molecular biology. In particular, Francois Jacob considered it too abstract and too removed from experiments. I re-examine the contrast between the Britten-Davidson model and the operon model by Jacob and Monod, the different scientific contexts in which they were produced and the different roles they played. I also describe my recent encounters with Eric Davidson, and how I discovered the extraordinary continuity of his work on the development of the sea urchin, as well as his rich personality. PMID- 29038913 TI - [Ocular melanomas : An update]. AB - Melanoma is the most common type of primary cancer to affect the adult eye. Approximately 95% of ocular melanomas are intraocular and arise from the uvea (i. e. iris, ciliary body, and choroid), while the remaining 5% are located in the conjunctiva. Although both uveal and conjunctival melanomas are thought to derive from malignantly transformed melanocytes, uveal melanoma is clinically and biologically distinct from conjunctival melanoma, and indeed from its more common cutaneous counterpart. Intense efforts have been recently made to understand the molecular biology involved in the development of ocular melanomas, and in their progression. Molecular advances, particularly for uveal melanoma, have enhanced prognostication and the identification of rational therapeutic targets for disseminated disease. In this review, recent advances in the molecular characterisation of both uveal and conjunctival melanomas are discussed, and how these may be used to develop personalised therapeutic strategies. PMID- 29038915 TI - Glycation of Lys-16 and Arg-5 in amyloid-beta and the presence of Cu2+ play a major role in the oxidative stress mechanism of Alzheimer's disease. AB - Extensive research has linked the amyloid-beta (Abeta) peptide to neurological dysfunction in Alzheimer's disease (AD). Insoluble Abeta plaques in the AD patient brain contain high concentrations of advanced glycation end-products (AGEs) as well as transition metal ions. This research elucidated the roles of Abeta, sugars, and Cu2+ in the oxidative stress mechanism of AD at the molecular level. Mass spectral (MS) analysis of the reactions of Abeta with two representative sugars, ribose-5-phosphate (R5P) and methylglyoxal (MG), revealed Lys-16 and Arg-5 as the primary glycation sites. Quantitative analysis of superoxide [Formula: see text] production by a cyt c assay showed that Lys-16 generated four times as much [Formula: see text] as Arg-5. Lys-16 and Arg-5 in Abeta1-40 are both adjacent to histidine residues, which are suggested to catalyze glycation. Additionally, Lys-16 is close to the central hydrophobic core (Leu-17-Ala-21) and to His-13, both of which are known to lower the pKa of the residue, leading to increased deprotonation of the amine and an enhanced glycation reactivity compared to Arg-5. Gel electrophoresis results indicated that all three components of AD plaques-Abeta1-40, sugars, and Cu2+-are necessary for DNA damage. It is concluded that the glycation of Abeta1-40 with sugars generates significant amounts of [Formula: see text], owing to the rapid glycation of Lys-16 and Arg-5. In the presence of Cu2+, [Formula: see text] converts to hydroxyl radical (HO.), the source of oxidative stress in AD. PMID- 29038918 TI - Mechanisms and causality in molecular diseases. AB - How is a disease contracted, and how does it progress through the body? Answers to these questions are fundamental to understanding both basic biology and medicine. Advances in the biomedical sciences continue to provide more tools to address these fundamental questions and to uncover questions that have not been thought of before. Despite these major advances, we are still facing conceptual and technical challenges when learning about the etiology of disease, especially for genetic diseases. In this review, we illustrate this point by discussing the causal links between molecular mechanisms and systems-level phenotypes in molecular diseases. We begin with an examination of sickle cell anemia, and how mechanisms of the disease have been comprehended over the last century. While sickle cell anemia involves a mutation in a single protein in a single cell type, other diseases involve mutations in networks with many protein interactions and in diverse cell types. We introduce the challenges that result from these differences and illustrate the current obstacles by discussing the RASopathies, a recently discovered class of developmental syndromes that result from mutations in signaling networks. Methods to study mutant genotypes that lead to mutant phenotypes are discussed, particularly the use of model organisms and mutant proteins to study protein interactions that may be important for development of disease. These studies will point toward the future of diagnosing and treating genetic disease. PMID- 29038916 TI - Functional characterization of chloroplast-targeted RbgA GTPase in higher plants. AB - KEY MESSAGE: Plant RbgA GTPase is targeted to chloroplasts and co-fractionated with chloroplast ribosomes, and plays a role in chloroplast rRNA processing and/or ribosome biogenesis. Ribosome Biogenesis GTPase A (RbgA) homologs are evolutionarily conserved GTPases that are widely distributed in both prokaryotes and eukaryotes. In this study, we investigated functions of chloroplast-targeted RbgA. Nicotiana benthamiana RbgA (NbRbgA) and Arabidopsis thaliana RbgA (AtRbgA) contained a conserved GTP-binding domain and a plant-specific C-terminal domain. NbRbgA and AtRbgA were mainly localized in chloroplasts, and possessed GTPase activity. Since Arabidopsis rbgA null mutants exhibited an embryonic lethal phenotype, virus-induced gene silencing (VIGS) of NbRbgA was performed in N. benthamiana. NbRbgA VIGS resulted in a leaf-yellowing phenotype caused by disrupted chloroplast development. NbRbgA was mainly co-fractionated with 50S/70S ribosomes and interacted with the chloroplast ribosomal proteins cpRPL6 and cpRPL35. NbRbgA deficiency lowered the levels of mature 23S and 16S rRNAs in chloroplasts and caused processing defects. Sucrose density gradient sedimentation revealed that NbRbgA-deficient chloroplasts contained reduced levels of mature 23S and 16S rRNAs and diverse plastid-encoded mRNAs in the polysomal fractions, suggesting decreased protein translation activity in the chloroplasts. Interestingly, NbRbgA protein was highly unstable under high light stress, suggesting its possible involvement in the control of chloroplast ribosome biogenesis under environmental stresses. Collectively, these results suggest a role for RbgA GTPase in chloroplast rRNA processing/ribosome biogenesis, affecting chloroplast protein translation in higher plants. PMID- 29038917 TI - Chromatin-associated regulation of sorbitol synthesis in flower buds of peach. AB - KEY MESSAGE: PpeS6PDH gene is postulated to mediate sorbitol synthesis in flower buds of peach concomitantly with specific chromatin modifications. Perennial plants have evolved an adaptive mechanism involving protection of meristems within specialized structures named buds in order to survive low temperatures and water deprivation during winter. A seasonal period of dormancy further improves tolerance of buds to environmental stresses through specific mechanisms poorly known at the molecular level. We have shown that peach PpeS6PDH gene is down regulated in flower buds after dormancy release, concomitantly with changes in the methylation level at specific lysine residues of histone H3 (H3K27 and H3K4) in the chromatin around the translation start site of the gene. PpeS6PDH encodes a NADPH-dependent sorbitol-6-phosphate dehydrogenase, the key enzyme for biosynthesis of sorbitol. Consistently, sorbitol accumulates in dormant buds showing higher PpeS6PDH expression. Moreover, PpeS6PDH gene expression is affected by cold and water deficit stress. Particularly, its expression is up regulated by low temperature in buds and leaves, whereas desiccation treatment induces PpeS6PDH in buds and represses the gene in leaves. These data reveal the concurrent participation of chromatin modification mechanisms, transcriptional regulation of PpeS6PDH and sorbitol accumulation in flower buds of peach. In addition to its role as a major translocatable photosynthate in Rosaceae species, sorbitol is a widespread compatible solute and cryoprotectant, which suggests its participation in tolerance to environmental stresses in flower buds of peach. PMID- 29038919 TI - Initial orthostatic and non-orthostatic hypotension in wrestler's syncope. PMID- 29038920 TI - Stener-like lesion of the lateral collateral ligament of the first metatarsophalangeal joint. AB - Displaced ulnar collateral ligament injuries of the metacarpophalangeal joint of the thumb, also known as Stener lesions, are a well-recognized clinical entity, requiring surgical intervention because of the trapped location of the torn lateral collateral ligament superficial to the adductor aponeurosis of the thumb. We report a similar lesion located at the first metatarsophalangeal joint, to our knowledge the first ever described in the literature. In our patient, magnetic resonance imaging showed a full-thickness tear of the lateral collateral ligament of the first metatarsophalangeal joint, as well as a full-thickness tear of the extensor hood, with dislocation of the proximal part of the ruptured lateral collateral ligament to a position superficial to the extensor hood. Analogous to true Stener lesions, we are convinced these patients also need early surgical repair. Therefore, we would like to raise awareness about their existence to ensure adequate management of these lesions, in order to prevent possible long term complications like chronic pain, instability, and joint degeneration. PMID- 29038921 TI - Muscular sarcoidosis involving the chest and abdominal walls: case report with MR imaging. AB - Sarcoidosis is an inflammatory disorder that is characterized by the presence of noncaseating granulomas in tissues, involving many organs and tissues. Extra pulmonary, especially muscular sarcoidosis is a rare condition. The most common location of the muscular sarcoidosis is known to be the proximal muscles of the extremities; however, there have been no cases of diffuse involvement of the chest and abdominal wall muscles. Here, we report a rare muscular sarcoidosis with infiltrative pattern in the chest and abdominal wall muscles and describe the MR imaging findings that were mistaken as lymphoma at initial diagnosis. Although our case did not show characteristic MR findings of muscular sarcoidosis, clinicians or radiologists who are aware of these imaging features can perform early systemic survey for sarcoidosis. Also muscle biopsy is very important to confirm the sarcoidosis and distinguish it from other tumors. PMID- 29038923 TI - Improvement of uridine production in Bacillus subtilis by metabolic engineering. AB - OBJECTIVES: To construct a Bacillus subtilis strain for improved uridine production. RESULTS: The AAG2846-2848 fragment of the pyrAB gene, encoding carbamoylphosphate synthetase, was deleted in B. subtilis TD246 leading to a 245% increase of uridine production and the conversion from glucose to uridine increased by 10.5%. Overexpression of the pyr operon increased the production of uridine by a further 31% and the conversion rate of glucose to uridine was increased by 18%. In addition, the blocking of arginine synthesis or disabling of glutamate dehydrogenase significantly enhanced the uridine production. The highest-producing strain, B. subtilis TD297, accumulated 11 g uridine/l with a yield of 240 mg uridine/g glucose in shake-flask cultivation. CONCLUSION: This is the first report of engineered B. subtilis strains which can produce more than 11 g uridine/l, with a yield reaching 240 mg uridine/g glucose in shake-flask cultivation. PMID- 29038922 TI - Lower Fractional Anisotropy in the Gray Matter of Amygdala-Hippocampus-Nucleus Accumbens Circuit in Methamphetamine Users: an In Vivo Diffusion Tensor Imaging Study. AB - The basolateral amygdala (BLA), hippocampal ventral subiculum, and nucleus accumbens (NAc) comprise the amygdala-hippocampus-NAc (AHN) circuit, which is implicated in drug seeking and reward. The goal of this study was to evaluate microstructural changes and relevant clinical features of the AHN circuit gray matter (GM) in methamphetamine (MA) users using diffusion tensor imaging (DTI). Thirty MA users and 30 age-matched normal volunteers underwent 3-T MR imaging to obtain structural T1-weighted images and DTI data. Freesurfer software was used to automatically segment the NAc and subiculum. A Julich probability map was employed to parcellate the BLA. Fractional anisotropy (FA) and mean diffusivity (MD) maps were generated and non-linearly coregistered to structural space. DTI measures of the AHN circuit GM were compared between MA users and controls using repeated measures analysis of variance. Correlation analyses were performed between DTI measures and clinical characteristics. Anatomical correlations between the NAc and BLA/subiculum in both groups were assessed using correlation analyses. The MA group had significant lower FA in the bilateral BLA, subiculum, and NAc. Higher total MA dose corresponded with lower FA in all three structures. Hamilton Anxiety Rating Scale scores negatively correlated with the right subiculum FA. Lower left BLA FA was associated with higher thinking disorder and hostile-suspicion factor scores. Left BLA FA was significantly associated with bilateral NAc FA in MA users. Those findings provided neuroimaging evidence of MA induced microstructural impairment in the AHN circuit GM. Enhanced anatomical correlations between the left BLA and bilateral NAc may be part of the mechanism of MA intake relapse and for development of psychosis. PMID- 29038924 TI - Inactivation of virginiamycin by Aureobasidium pullulans. AB - OBJECTIVE: To test the inactivation of the antibiotic, virginiamycin, by laccase induced culture supernatants of Aureobasidium pullulans. RESULTS: Fourteen strains of A. pullulans from phylogenetic clade 7 were tested for laccase production. Three laccase-producing strains from this group and three previously identified strains from clade 5 were compared for inactivation of virginiamycin. Laccase-induced culture supernatants from clade 7 strains were more effective at inactivation of virginiamycin, particularly at 50 degrees C. Clade 7 strain NRRL Y-2567 inactivated 6 ug virginiamycin/ml within 24 h. HPLC analyses indicated that virginiamycin was degraded by A. pullulans. CONCLUSIONS: A. pullulans has the potential for the bioremediation of virginiamycin-contaminated materials, such as distiller's dry grains with solubles (DDGS) animal feed produced from corn-based fuel ethanol production. PMID- 29038925 TI - miR-1260b promotes cell migration and invasion of hepatocellular carcinoma by targeting the regulator of G-protein signaling 22. AB - OBJECTIVES: To investigate whether miR-1260b can regulate migration and invasion of hepatocellular carcinoma (HCC) by targeting RGS22. RESULTS: miR-1260b was up regulated in HCC tissues compared with their corresponding non-cancerous tissues. Over-expression of miR-1260b increased migration and invasion of HepG2 and SMMC 7721 cells associated with HCC. Regulator of G-protein signaling 22 (RGS22) was identified as a directly target of miR-1260b and was inhibited by miR-1260b. Knockdown of RGS22 increased proliferation of HCC cells. CONCLUSIONS: The new identified miR-1260b/RGS22 axis provides useful therapeutic methods for treatment of HCC deepening on our understanding of underlying mechanisms of HCC tumorigenesis. PMID- 29038926 TI - Deactivation kinetics and the effects of additives on storage stability and structure of D-psicose 3-epimerase. AB - OBJECTIVE: To explore deactivation kinetics and the effects of some additives on the activity and conformational changes of D-psicose 3-epimerase (DPEase) during its storage. RESULTS: The experimental data of DPEase inactivation during storage at 4-45 degrees C fitted with the first-order expression model. The inactivation rate constants of DPEase stored at 4, 10, 25, 35 and 45 degrees C were 0.0076, 0.01, 0.0223, 0.0351 and 0.0605 day, respectively. A regression formula of half lives as storage temperatures, ln t 1/2 = 4.7396/T * 103 - 12.536, was obtained. MnSO4 at 0.15 g l-1 enhanced the residual activity by 16% after 15 days and 17% after 30 days compared with control, but 2 g ascorbic acid l-1 reduced activity by 69 and 58% at the same time. In addition, 0.15 g MnSO4 l-1 and 20 g ethylene glycol l-1 maintained the secondary and tertiary structure of DPEase. CONCLUSIONS: MnSO4 and ethylene glycol actively promoted the storage and conformational stability of DPEase. In contrast, ascorbic acid was disadvantageous. PMID- 29038927 TI - Novel strategy for phenyllactic acid biosynthesis from phenylalanine by whole cell recombinant Escherichia coli coexpressing L-phenylalanine oxidase and L lactate dehydrogenase. AB - OBJECTIVES: To enhance the efficiency of phenyllactic acid (PLA) production from L-phenylalanine (L-Phe) by introducing a novel artificial pathway into Escherichia coli RESULTS: The production of PLA from L-Phe by recombinant E. coli (ldh-lpox) coexpressing L-phenylalanine oxidase and L-lactate dehydrogenase was studied. The new PLA synthesis pathway was confirmed to be efficient in recombinant E. coli. Subsequently, two different biocatalyst processes were carried out and optimized for PLA production. In the whole cell biosynthesis process at high cell density using collected recombinant cells as catalyst, at optimal conditions (L-Phe 6 g/l, pH 7.5, 35 degrees C, CDW 24.5 g/l and 200 rpm), the recombinant E. coli (ldh-lpox) produced 1.62 g PLA/l with a conversion of 28% from L-Phe. Similarly, during the two-temperature-stage fermentation process in flasks using IPTG-induced cells, the temperature in the second stage was increased to 35 degrees C to benefit the biocatalyst process, and comparable phenyllactic acid production of 1.47 g/l was obtained from 12 g L-Phe/l. CONCLUSIONS: Recombinant E. coli (ldh-lpox) was efficient in PLA production realizing a high titer of several folds compared with studies using L-Phe as substrate. PMID- 29038928 TI - Characterization and mutation analysis of a halotolerant serine protease from a new isolate of Bacillus subtilis. AB - OBJECTIVES: A bacterial halotolerant enzyme was characterized to understand the molecular mechanism of salt adaptation and to explore its protein engineering potential. RESULTS: Halotolerant serine protease (Apr_No16) from a newly isolated Bacillus subtilis strain no. 16 was characterized. Multiple alignments with previously reported non-halotolerant proteases, including subtilisin Carlsberg, indicated that Apr_No16 has eight acidic or polar amino acid residues that are replaced by nonpolar amino acids in non-halotolerant proteases. Those residues were hypothesized to be one of the primary contributors to salt adaptation. An eightfold mutant substituted with Ala residues exhibited 1.2- and 1.8-fold greater halotolerance at 12.5% (w/v) NaCl than Apr_No16 and Carlsberg, respectively. Amino acid substitution notably shifted the theoretical pI of the eightfold mutant, from 6.33 to 9.23, compared with Apr_No16. The resulting protein better tolerated high salt conditions. CONCLUSIONS: Changing the pI of a bacterial serine protease may be an effective strategy to improve the enzyme's halotolerance. PMID- 29038929 TI - Validating a Culturally-sensitive Social Competence Training Programme for Adolescents with ASD in a Chinese Context: An Initial Investigation. AB - Previous studies on social skills training on ASD were done almost exclusively in the West with children as the main subjects. Demonstrations of the applicability of social interventions in different cultures and age groups are warranted. The current study outlined the development and preliminary evaluation of a CBT context-based social competence training for ASD (CBT-CSCA) developed in Hong Kong for Chinese adolescents with ASD. Twenty-five adolescents (aged 12-17 years, with a FSIQ above 80) were recruited. Significant improvements in social competence, autistic symptoms and general psychopathology at post-training and 3 month follow-up were reported by the parents. The study provided initial evidence support to the applicability of social competence training for adolescents with ASD in a different culture. PMID- 29038931 TI - Brief Report: Body Image in Autism: Evidence from Body Size Estimation. AB - Individuals with autism spectrum disorder (ASD) have difficulties with social interaction and communication. First-hand accounts written by individuals with ASD have shown the existence of other atypical characteristics such as difficulties with body awareness. However, few studies have examined whether such atypicalities are found more generally among individuals with ASD. We examined body image (i.e., self-body awareness) by asking individuals with ASD and typically developing (TD) individuals to estimate their own body size (shoulder width). Results show that TD individuals estimated their shoulder width more accurately than individuals with ASD. This study suggests that individuals with ASD often experience misperceptions in their body size. PMID- 29038930 TI - Verbal Ability and Psychiatric Symptoms in Clinically Referred Inpatient and Outpatient Youth with ASD. AB - Youth with autism spectrum disorder (ASD) experience high rates of psychiatric symptoms, but the relation between verbal ability and psychiatric symptoms is unknown. This study utilized a large sample of clinically referred inpatient and outpatient youth with ASD to compare psychiatric comorbidity between verbal and minimally-verbal youth, adjusting for nonverbal IQ, age, and ASD symptom severity. Results indicated that verbal youth were more likely to present with and meet clinical cutoffs for depression and oppositional defiant disorder symptoms, with greater impairment associated with depression. Youth in inpatient settings had greater symptom severity and impairment across almost all psychiatric comorbidities. These results present the most direct estimate to date of the association between verbal ability and psychiatric comorbidity in ASD. PMID- 29038932 TI - MR T2 value of the tibial nerve can be used as a potential non-invasive and quantitative biomarker for the diagnosis of diabetic peripheral neuropathy. AB - OBJECTIVE: To determine the role of quantitative tibial nerve T2 value in the diagnosis of diabetic peripheral neuropathy (DPN). METHODS: MR imaging and T2 mapping of the tibial nerve were performed in 22 diabetic patients with DPN, 20 diabetic patients without DPN and 20 healthy controls. Nerve T2 values were measured, and compared using the Mann-Whitney U test. Receiver operating characteristic (ROC) curve analysis was used to determine the diagnostic ability of T2 value to identify DPN. RESULTS: Nerve T2 value was 55.06 +/- 4.05 ms, 48.91 +/- 3.06 ms and 45.61 +/- 1.86 ms in patients with DPN, patients without DPN and controls, respectively. Patients with DPN had significantly higher nerve T2 values than patients without DPN (P < 0.001). Nerve T2 values in patients without DPN were higher than in controls (P < 0.001). ROC analysis showed that T2 values had a diagnostic sensitivity of 81.8 %, specificity of 89.2 % and area under the curve of 0.922 for identifying patients with DPN from patients without DPN plus controls when the cutoff point was 51.34 ms. CONCLUSION: T2 value of the tibial nerve can be used as an alternative, non-invasive quantitative parameter to assess DPN in diabetic patients. KEY POINTS: * Tibial nerves in patients with DPN showed T2 hyperintensity and enlargement. * Tibial nerves in patients with DPN had an increased T2 value. * T2 value might be used as a quantitative biomarker for DPN. PMID- 29038933 TI - Volume doubling time of lung cancer detected in idiopathic interstitial pneumonia: comparison with that in chronic obstructive pulmonary disease. AB - OBJECTIVES: To assess the volume doubling time (VDT) of lung cancers in IIP compared with COPD. METHODS: A total of 61 patients (32 with IIP and 29 with COPD) were identified. A radiologist performed three-dimensional manual segmentation for lung cancers. VDTs were calculated and compared between two groups. Logistic regression was performed to identify factors associated with rapid tumour growth (VDT < 90 days). RESULTS: The median VDT of lung cancers in IIP (78.2 days) was significantly shorter than that in COPD (126.1 days; p=0.004). Squamous cell carcinoma (SqCC) was the most frequent subtype, followed by small cell lung cancer (SCLC) in IIP. In COPD, SqCC was the most frequent subtype, followed by adenocarcinoma. Rapid tumour growth was observed in 20 cancers from IIP, and in nine cancers from COPD (p=0.021). SCLC was significantly correlated with rapid tumour growth (p=0.038). Multivariate analysis revealed that the presence of IIP was the single independent predictor of rapid tumour growth (p = 0.016; odds ratio, 3.7). CONCLUSIONS: Lung cancers in IIP showed more rapid growth, with median VDT < 90 days. Therefore, a shorter follow-up interval (<90 days) may be necessary when CT surveillance is considered in IIP patients with suspected lung cancer. KEY POINTS: * The median VDTs of lung cancers in IIP was 78.2 days. * Rapid tumour growth occurred more frequently in IIP than in COPD. * IIP was the single independent predictor of rapid tumour growth. * Shorter CT follow-up interval may be necessary in IIP with suspicious nodules. PMID- 29038934 TI - Characterisation of fibrosis in chemically-induced rat mammary carcinomas using multi-modal endogenous contrast MRI on a 1.5T clinical platform. AB - OBJECTIVES: To determine the ability of multi-parametric, endogenous contrast MRI to detect and quantify fibrosis in a chemically-induced rat model of mammary carcinoma. METHODS: Female Sprague-Dawley rats (n=18) were administered with N methyl-N-nitrosourea; resulting mammary carcinomas underwent nine-b-value diffusion-weighted (DWI), ultrashort-echo (UTE) and magnetisation transfer (MT) magnetic resonance imaging (MRI) on a clinical 1.5T platform, and associated quantitative MR parameters were calculated. Excised tumours were histologically assessed for degree of necrosis, collagen, hypoxia and microvessel density. Significance level adjusted for multiple comparisons was p=0.0125. RESULTS: Significant correlations were found between MT parameters and degree of picrosirius red staining (r > 0.85, p < 0.0002 for ka and delta, r < -0.75, p < 0.001 for T1 and T1s, Pearson), indicating that MT is sensitive to collagen content in mammary carcinoma. Picrosirius red also correlated with the DWI parameter fD* (r=0.801, p=0.0004) and conventional gradient-echo T2* (r=-0.660, p=0.0055). Percentage necrosis correlated moderately with ultrashort/conventional echo signal ratio (r=0.620, p=0.0105). Pimonidazole adduct (hypoxia) and CD31 (microvessel density) staining did not correlate with any MR parameter assessed. CONCLUSIONS: Magnetisation transfer MRI successfully detects collagen content in mammary carcinoma, supporting inclusion of MT imaging to identify fibrosis, a prognostic marker, in clinical breast MRI examinations. KEY POINTS: * Magnetisation transfer imaging is sensitive to collagen content in mammary carcinoma. * Magnetisation transfer imaging to detect fibrosis in mammary carcinoma fibrosis is feasible. * IVIM diffusion does not correlate with microvessel density in preclinical mammary carcinoma. PMID- 29038935 TI - Clinical knowledge of community pharmacists in Croatia for detecting drug-related problems. AB - Background Drug-related problems (DRPs) interfere with patient's health outcomes and have a negative impact on healthcare resources. Successful management of DRPs is an essential part of pharmaceutical care. Pharmacists should have adequate clinical knowledge in order to effectively implement pharmaceutical care and manage DRPs. Objective To determine the clinical knowledge of community pharmacists in Croatia to detect and resolve DRPs. Method A sample of 302 community pharmacists have anonymously and voluntarily completed the validated survey-based clinical knowledge measurement tool. For each completed survey, all statements were scored individually, and a total score was calculated. The lowest possible total score was 0 and the highest was 80. Higher survey score indicates a higher level of clinical knowledge to detect and resolve a DRP. Results All community pharmacists had a mean score of 45.5 +/- 8.6, while pharmacists from a pharmacy chain with mandatory education had a higher mean score of 50.2 +/- 6.5. Multivariate linear regression revealed that only additional education (beta = 0.272, p < 0.001) is associated with a higher mean score, while age and gender have no influence on the survey score. Conclusion Additional education of community pharmacists could increase their clinical knowledge to detect and resolve DRPs. PMID- 29038936 TI - Current practice and opinions of hospital pharmacists regarding their role in the screening, prevention and treatment of delirium. AB - Background An interdisciplinary approach is fundamental for effective prevention and treatment of delirium. Pharmacists could play a role in identifying and resolving medication-related delirium. However, little is known about their role in delirium care. Objective The main purpose of this survey was to assess the current practice and opinions of pharmacists concerning their involvement in screening, prevention and treatment of delirium. Setting Pharmacists in public and private hospitals in Australia. Method A cross-sectional survey was conducted using a pilot tested web-based questionnaire which was distributed primarily via a link in the electronic newsletter of the Society of Hospital Pharmacists of Australia. Main outcome measure Number and proportion of respondents answering questions related to the practice and perceptions of pharmacists in delirium management. Results Responses from 106 pharmacists were included in the analysis. Most respondents believed that pharmacists could play a role in prevention (92%) and screening (62%) of patients for delirium. However, in practice only 8% of pharmacists reported that they had ever screened a patient for delirium using a validated tool and 79% indicated that pharmacists were never or rarely involved in delirium treatment. When pharmacists did make recommendations half of the respondents said that pharmacists' recommendations were frequently or always accepted by the delirium treating teams. Conclusion Hospital pharmacists are underutilised in the prevention and management of delirium. Strategies to increase their involvement in the prevention and management of delirium should be implemented. PMID- 29038937 TI - Resurrecting the Empathy-Bullying Relationship with a Pro-Bullying Attitudes Mediator: the Lazarus Effect in Mediation Research. AB - The purpose of this study was to determine whether pro-bullying attitudes are capable of mediating the low empathy-bullying relationship in the absence of a significant unmediated correlation between low empathy and bullying behavior. Using three waves of self-report data from 1371 (677 boys, 694 girls) pre adolescent/early adolescent members of the Illinois Study of Bullying and Sexual Violence (ISBSV), the mediating effect of pro-bullying attitudes on the low empathy-bullying connection was examined. A path analysis revealed that pro bullying attitudes successfully mediated the pathway running from low empathy to bully perpetration even though the unmediated relationship between low empathy and bullying perpetration was non-significant. A control or comparison pathway running from bully perpetration to pro-bullying attitudes to low empathy was also tested and found to be non-significant. It would appear that low empathy contributes to bullying perpetration by stimulating pro-bullying attitudes which, in turn, promote bullying perpetration. The theoretical, research, and practical implications of these results are discussed. PMID- 29038938 TI - A Secure Base from which to Cooperate: Security, Child and Parent Willing Stance, and Adaptive and Maladaptive Outcomes in two Longitudinal Studies. AB - Early secure attachment plays a key role in socialization by inaugurating a long term mutual positive, collaborative interpersonal orientation within the parent child dyad. We report findings from Family Study (community mothers, fathers, and children, from age 2 to 12, N = 102, 51 girls) and Play Study (exclusively low income mothers and children, from age 3.5 to 7, N = 186, 90 girls). We examined links among observed secure attachment at toddler age, child and parent receptive, willing stance to each other, observed in parent-child contexts at early school age, and developmental outcomes. The developmental outcomes included parent-rated child antisocial behavior problems and observed positive mutuality with regard to conflict issues at age 12 in Family Study, and mother-rated child antisocial behavior problems and observed child regard for rules and moral self at age 7 in Play Study. In mother-child relationships, the child's willing stance mediated indirect effects of child security on positive mutuality in Family Study and on all outcomes in Play Study. In father-child relationships, both the child's and the parent's willing stance mediated indirect effects of child security on both outcomes. Early security initiates an adaptive developmental cascade by enlisting the child and the parent as active, willingly receptive and cooperative agents in the socialization process. Implications for children's parenting interventions are noted. PMID- 29038939 TI - Effect of Cobalt on Sperm Motility in an Endangered Trout Species, Salmo coruhensis. AB - Experiments were designed to examine the in vitro effect of cobalt on sperm motility of the endangered trout species (Salmo coruhensis). Sperm samples were diluted in an immobilizing solution, and activated in a motility-activation solution that was supplemented with cobalt at concentrations of 1, 10, 100 and 1000 mg/L. The percentage of motile sperm and duration of motility were determined. Cobalt concentrations of 1-100 mg/L had a positive effect on the percentage of motile sperm and duration of motility compared to the control group, while a concentration of 1000 mg/L resulted in decreases in these parameters (p < 0.05). The percentages of motile sperm at cobalt concentrations of 0, 1, 10, 100 and 1000 mg/L were 83.33% +/- 0.25%, 88.33% +/- 0.34%, 89.00% +/ 0.57%, 90.00% +/- 0.87% and 42.50% +/- 0.45%, respectively; and the time durations over which the sperm remained motile were 72.00 +/- 0.63, 74.83 +/- 0.28, 77.40 +/- 0.47, 81.14 +/- 0.78, and 50.25 +/- 0.67 s, respectively. This study has shown that sperm motility and duration were significantly enhanced (p < 0.05) at cobalt concentrations of 1, 10 and 100 mg/L, relative to controls, and significantly decreased at 1000 mg/L. PMID- 29038940 TI - Impact of Saw Dust Application on the Distribution of Potentially Toxic Metals in Contaminated Soil. AB - The need to develop an approach for the reclamation of contaminated site using locally available agricultural waste has been considered. The present study investigated the application of sawdust as an effective amendment in the immobilization of potentially toxic metals (PTMs) by conducting a greenhouse experiment on soil collected from an automobile dumpsite. The amended and non amended soil samples were analyzed for their physicochemical parameters and sequential extraction of PTMs. The results revealed that application of amendment had positive impact on the physicochemical parameters as organic matter content and cation exchange capacity increased from 12.1% to 12.8% and 16.4 to 16.8 meq/100 g respectively. However, the mobility and bioavalability of these metals was reduced as they were found to be distributed mostly in the non-exchangeable phase of soil. Therefore, application of sawdust successfully immobilized PTMs and could be applied for future studies in agricultural soil reclamation. PMID- 29038941 TI - Spatial and Temporal Heavy Metal Distribution and Surface Water Characterization of Kanjli Wetland (a Ramsar site), India Using Different Indices. AB - Suitability of surface water of Kanjli wetland, Punjab (India) during the period of 2013-2015 was assessed for drinking, irrigation and aquatic life using a water quality index (WQI), heavy metal pollution index (HPI) and aquatic toxicity index (ATI). WQI was calculated using 14 physico-chemical parameters while HPI determination used nine heavy metals like As, Cd, Co, Cr, Cu, Fe, Mn, Pb and Zn. WQI revealed that Kanjli wetland contained medium quality water (irrigation and aquatic life). Cr, Cd and Co exceeded desirable limits of World Health Organization (WHO, Guidelines for drinking-water quality, World Health Organization, Geneva, 2011) and Indian drinking water standard (2012) during all the three seasons (monsoon, post monsoon and winter). HPI values from all sites exceeded critical pollution index value of 100 during monsoon season. Few sites were unsuitable for normal fish life as per ATI. The study recommends planned spatial, temporal and periodic monitoring of wetland using WQI and HPI to sustain good water quality (drinking, irrigation and aquatic life). PMID- 29038943 TI - A Lower Limb-Pelvis Finite Element Model with 3D Active Muscles. AB - A lower limb-pelvis finite element (FE) model with active three-dimensional (3D) muscles was developed in this study for biomechanical analysis of human body. The model geometry was mainly reconstructed from a male volunteer close to the anthropometry of a 50th percentile Chinese male. Tissue materials and structural features were established based on the literature and new implemented experimental tests. In particular, the muscle was modeled with a combination of truss and hexahedral elements to define its passive and active properties as well as to follow the detailed anatomy structure. Both passive and active properties of the model were validated against the experiments of Post-Mortem Human Surrogate (PMHS) and volunteers, respectively. The model was then used to simulate driver's emergency braking during frontal crashes and investigate Knee Thigh-Hip (KTH) injury mechanisms and tolerances of the human body. A significant force and bending moment variance was noted for the driver's femur due to the effects of active muscle forces during emergency braking. In summary, the present lower limb-pelvis model can be applied in various research fields to support expensive and complex physical tests or corresponding device design. PMID- 29038942 TI - Fitting structure to function in gene regulatory networks. AB - Cascades of transcriptional regulation are the common source of the forward drive in all developmental systems. Increases in complexity and specificity of gene expression at successive stages are based on the collaboration of varied combinations of transcription factors already expressed in the cells to turn on new genes, and the logical relationships between the transcription factors acting and becoming newly expressed from stage to stage are best visualized as gene regulatory networks. However, gene regulatory networks used in different developmental contexts underlie processes that actually operate through different sets of rules, which affect the kinetics, synchronicity, and logical properties of individual network nodes. Contrasting early embryonic development in flies and sea urchins with adult mammalian hematopoietic development from stem cells, major differences are seen in transcription factor dosage dependence, the silencing or damping impacts of repression, and the impact of cellular regulatory history on the parts of the genome that are accessible to transcription factor action in a given cell type. These different features not only affect the kinds of models that can illuminate developmental mechanisms in the respective biological systems, but also reflect the evolutionary needs of these biological systems to optimize different aspects of development. PMID- 29038944 TI - Environmental Lead and Wild Birds: A Review. AB - Lead is a persistent inorganic environmental pollutant that affects humans and animals worldwide. Avian species are especially susceptible to lead exposure through consumption of lead ammunition, lead fishing tackle, and other contaminated food sources such as aquatic species ingesting lead contaminated sediments in mining areas. Even with government regulations on the use of lead ammunition in many countries, including the United States, terrestrial, aquatic, predatory, and scavenger avian species are still at risk of exposure to potentially lethal concentrations of lead. The toxicities seen in these avian species include increased oxidative stress and decreased anti-oxidant enzymes in hepatic and renal tissue. The avian immune system is also a target of lead and displays a number of altered functions suggestive of immune suppression; however, studies in wildlife and laboratory species remain too limited for definitive statements with regard to population risk. In contrast, lead clearly inhibits reproductive capabilities in adult birds, and alters growth and development of hatchlings. Environmental remediation for lead removal, which would lower toxic exposure in wildlife, presently is a monumental and prohibitively expensive effort. Wildlife exposure will therefore continue in contaminated areas, necessitating development of new remediation practices. These plans should aim toward limiting more widespread or heavier contamination of wildlife habitats. This chapter reviews presently available information of lead toxicity in wild bird species, and suggests continued monitoring and reduction strategies to reduce lead exposure for at-risk avian populations. PMID- 29038945 TI - Human germline editing: a historical perspective. AB - The development of the genome editing system called CRISPR-Cas9 has opened a huge debate on the possibility of modifying the human germline. But the types of changes that could and/or ought to be made have not been discussed. To cast some light on this debate, I will describe the story of the CRISPR-Cas9 system. Then, I will briefly review the projects for modification of the human species that were discussed by biologists throughout the twentieth century. Lastly, I will show that for plenty of reasons, both scientific and societal, germline modification is no longer a priority for our societies. PMID- 29038947 TI - Analysis of hematological parameters in patients treated with ketogenic diet due to drug-resistant epilepsy. AB - Benefits of the ketogenic diet (KD) in epileptic patients are well known while less is known about the nutritional risks of the diet and its potential impacts on biochemical nutritional status. In this study, we aimed to evaluate the hematological parameters of patients who have drug-resistant epilepsy and are treated with KD. Fifty-three patients with drug-resistant epilepsy (mean age 7.4 +/- 4.4 years [2-18], 23 [43.4%] female) were included in the study. Demographic and laboratory data of the patients were retrospectively analyzed at baseline and Month 6 and Month 12 of the treatment. Repeated measures ANOVA (post hoc Bonferroni correction) and Friedman test were used to assess the changes in data during the treatment. Mean hemoglobin levels increased by 0.594 g/dL after 6 months (p = 0.001) and by 0.602 g/dL after 12 months of the treatment (p = 0.002). Mean hematocrit level was found to be significantly increased at Month 6 and 12 of the treatment compared to baseline [F(2,94) = 8.9, p < 0.0001]. An increase in MCV levels was determined with the KD treatment [F(2,94) = 19.7, p < 0.0001]. Mean level of vitamin B12 was found to be significantly increased in Month 12 of treatments compared to Month 6 [F(1.686,72.479) = 3.472, p = 0.035]. There was no significant effect of KD on other hematological parameters (red blood cell, white blood cell and platelet counts, serum iron, total iron-binding capacity, transferrin saturation, and ferritin and folic acid levels). We can conclude that KD increases levels of hemoglobin, hematocrit, MCV, and serum vitamin B12 in patients with intractable epilepsy. Prospective, multi-center, longitudinal studies are needed to confirm our results. PMID- 29038946 TI - Cognitive and behavioral disorders in Parkinson's disease: an update. II: behavioral disorders. AB - Patients with Parkinson's disease (PD) can experience several behavioral symptoms, such as apathy, agitation, hypersexuality, stereotypic movements, pathological gambling, abuse of antiparkinsonian drugs, and REM sleep behavioral disorders. Psychoses and hallucinations, depression and anxiety disorders, and difficulties in recognizing and experiencing emotions also impair behavior and can cause severe psychosocial problems in patients with PD. Symptoms can be present since early stages of the disease, sometimes even before the appearance of classical motor symptoms, likely in relation to dopamine depletion in basal ganglia and/or to dysfunctions of other neurotrasmitter systems, and others can develop later, in some cases in relation to dopaminergic treatment. In this paper, we review recent literature, with particular attention to the last 5 years, on the main behavioral and emotional disturbances described in PD patients as well as the hypothesized neurofunctional substrate of such impairments. Finally, we provide some suggestions on the most suitable instruments to check and assess PD-associated behavioral defects over time. PMID- 29038948 TI - Molecular characterization of NBS-LRR genes in the soybean Rsv3 locus reveals several divergent alleles that likely confer resistance to the soybean mosaic virus. AB - KEY MESSAGE: The divergence patterns of NBS - LRR genes in soybean Rsv3 locus were deciphered and several divergent alleles ( NBS_C, NBS_D and Columbia NBS_E ) were identified as the likely functional candidates of Rsv3. The soybean Rsv3 locus, which confers resistance to the soybean mosaic virus (SMV), has been previously mapped to a region containing five nucleotide binding site-leucine rich repeats (NBS-LRR) genes (referred to as nbs_A-E) in Williams 82. In resistant cultivars, however, the number of NBS-LRR genes in this region and their divergence from susceptible alleles remain unclear. In the present study, we constructed and screened a bacterial artificial chromosome (BAC) library for an Rsv3-possessing cultivar, Zaoshu 18. Sequencing two positive BAC inserts on the Rsv3 locus revealed that Zaoshu 18 possesses the same gene content and order as Williams 82, but two of the NBS-LRR genes, NBS_C and NBS_D, exhibit distinct features that were not observed in the Williams 82 alleles. Obtaining these NBS LRR genes from eight additional cultivars demonstrated that the NBS_A-D genes diverged into two different alleles: the nbs_A-D alleles were associated with the rsv3-type cultivars, whereas the NBS_A-D alleles were associated with the Rsv3 possessing cultivars. For the NBS_E gene, the cultivar Columbia possesses an allele (NBS_E) that differed from that in Zaoshu 18 and rsv3-type cultivars (nbs_E). Exchanged fragments were further detected on alleles of the NBS_C-E genes, suggesting that recombination is a major force responsible for allele divergence. Also, the LRR domains of the NBS_C-E genes exhibited extremely strong signals of positive selection. Overall, the divergence patterns of the NBS-LRR genes in Rsv3 locus elucidated by this study indicate that not only NBS_C but also NBS_D and Columbia NBS_E are likely functional alleles that confer resistance to SMV. PMID- 29038949 TI - Sleep disorders and health-related quality of life in patients with interstitial lung disease. AB - BACKGROUND: Interstitial lung diseases (ILD) are chronic and restrictive lung diseases with poor survival and quality of life. The aim of this study was to investigate the frequency of sleep disorders in idiopathic pulmonary fibrosis (IPF) and sarcoidosis and to assess patients' quality of life in relation to these disorders. METHODS: Forty patients, 19 with IPF, and 21 with sarcoidosis stage II/III were included. They were compared with 15 healthy subjects. All patients performed all-night polysomnography (PSG) and completed the Epworth, Berlin, and Stop-Bang questionnaires. In order to evaluate the quality of life, all patients completed the Short-Form 36 (SF-36) questionnaire. RESULTS: Of the IPF patients, 68% were diagnosed with mild obstructive sleep apnea (OSA), 5.2% with moderate to severe, 5.2% with severe OSA, and 21% with no OSA. Of patients with sarcoidosis, 52.4% were diagnosed with mild OSA and 4.8% with moderate severity OSA. The remaining 42.8% did not have OSA. The health-related quality of life in both patients with IPF and patients with sarcoidosis was impaired especially in the domains concerning physical health and the level of independence, compared to the control group. CONCLUSIONS: In this sample of patients with IPF and sarcoidosis, obstructive sleep apnea is common at least in a mild degree of severity. The SF-36 questionnaire may be a useful tool for the evaluation of the quality of life in these patients. PMID- 29038950 TI - Firing a loaded gun during sleep in an elderly man with a "perfect storm" of risk factors including severe obstructive sleep apnea. AB - PURPOSE: We report a case of firing a loaded gun during sleep in a geriatric patient with undiagnosed major sleep disorders and multiple risk factors for sleep violence. Polysomnographic findings, diagnostic challenges, and forensic implications in this unprecedented geriatric case are discussed. METHODS: A 75 year-old employed man, married for 32 years, presented to a sleep center reporting to having fired a shot in his bedroom during sleep while his wife was away, without memory of hearing the gunshot. The day before the event, the patient had a normal life, apart from serious worries about recent nearby burglaries that prompted his sleeping with a loaded gun placed behind his bed. The patient underwent a sleep medicine workup, including nocturnal video polysomnography (vPSG). RESULTS: The patient and his wife were unaware of any sleep problems. Upon careful questioning, only mild daytime sleepiness and rare episodes of minor abnormal motor behavior were reported. At vPSG, sleep structure was markedly disrupted with only one clear sleep cycle with REM sleep that had preserved REM-atonia; severe obstructive sleep apnea and moderately severe periodic limb movement activity were documented. Brief abnormal movements from REM sleep without apparent precipitant were recorded. CPAP therapy was effective. CONCLUSIONS: In this case, there was a "perfect storm" of sleep and psychological risk factors that converged to strongly promote precipitous arousals with sleep related violence in a patient with documented sleep motor dyscontrol. Primary care physicians, including geriatric specialists, should question patients and their spouses about any symptoms of sleep disorders. PMID- 29038954 TI - An unusual blood pressure reading. PMID- 29038953 TI - Current Concepts in Rehabilitation for Traumatic Anterior Shoulder Instability. AB - PURPOSE OF REVIEW: The objectives of this review are to evaluate the current evidence-based literature and concepts surrounding rehabilitation in patients with anterior shoulder instability injuries and surgical repair. RECENT FINDINGS: The current literature evidence for shoulder rehabilitation for anterior shoulder instability and labral repair is limited. As a result, there are variations among surgeons and physical therapists in rehabilitation protocols after anterior shoulder instability injuries and repair. While general consensus on certain rehabilitation parameters exists, the evidence for the importance of rehabilitation and functional performance test for return to sport in future injury prevention is still lacking in literature. Rehabilitation after anterior shoulder instability injury and anterior labral repair is paramount in the injured or post-operative shoulder. Restoration of soft tissue mobility, dynamic glenohumeral joint stability, and balance and strength around the shoulder not only protect healing of injured or repaired soft tissues but also potentially minimizes future re-injury or recurrence risk. PMID- 29038951 TI - The Epidemiology and Natural History of Anterior Shoulder Instability. AB - PURPOSE OF REVIEW: The purpose of this review is to outline the natural history and best clinical practices for nonoperative management of anterior shoulder instability. RECENT FINDINGS: Recent studies continue to demonstrate a role for nonoperative treatment in the successful long-term management of anterior glenohumeral instability. The success of different positions of shoulder immobilization is reviewed as well. There are specific patients who may be best treated with nonoperative means after anterior glenohumeral instability. There are also patients who are not good nonoperative candidates based on a number of factors that are outlined in this review. There continues to be no definitive literature regarding the return to play of in-season athletes. Successful management requires a thorough understanding of the epidemiology, pathoanatomy, history, physical examination, diagnostic imaging modalities, and natural history of operative and nonoperative treatment. PMID- 29038952 TI - Lateral Lumbar Interbody Fusion-Outcomes and Complications. AB - PURPOSE OF REVIEW: Lateral lumbar interbody fusion (LLIF) is a relatively new, minimally invasive technique for interbody fusion. The goal of this review is to provide a general overview of LLIF with a special focus on outcomes and complications. RECENT FINDINGS: Since the first description of the technique in 2006, the indications for LLIF have expanded and the rate of LLIF procedures performed in the USA has increased. LLIF has several theoretical advantages compared to other approaches including the preservation of the anterior and posterior annular/ligamentous structures, insertion of wide cages resting on the dense apophyseal ring bilaterally, and augmentation of disc height with indirect decompression of neural elements. Favorable long-term outcomes and a reduced risk of visceral/vascular injuries, incidental dural tears, and perioperative infections have been reported. However, approach-related complications such as motor and sensory deficits remain a concern. In well-indicated patients, LLIF can be a safe procedure used for a variety of indications. PMID- 29038955 TI - Frontoethmoidal encephalocele: a pediatric airway challenge. PMID- 29038956 TI - Interaction of Leptospira with the Innate Immune System. AB - Innate immunity encompasses immediate host responses that detect and respond to microbes. Besides recognition by the complement system (see the chapter by A. Barbosa, this volume), innate immunity concerns cellular responses. These are triggered through recognition of conserved microbial components (called MAMPs) by pattern recognition receptors (PRRs), leading, through secretion of cytokines, antimicrobial peptides, and immune mediators, to cellular recruitment and phagocytosis. Leptospira spp. are successful zoonotic pathogenic bacteria that obviously overcome the immune system of their hosts. The first part of this chapter summarizes what is known about leptospires recognition and interaction with phagocytes and other innate immune cells, and the second part describes specific interactions of leptospiral MAMPs with PRRs from the TLR and NLR families. On the one hand, pathogenic leptospires appear to escape macrophage and neutrophil phagocytosis. On the other hand, studies about PRR sensing of leptospires remain very limited, but suggest that pathogenic leptospires escape some of the PRRs in a host-specific manner, due to peculiar cell wall specificities or post-translational modifications that may impair their recognition. Further studies are necessary to clarify the mechanisms and consequences of leptospiral escape on phagocytic functions and hopefully give clues to potential therapeutic strategies aimed at restoring the defective activation of PRRs by pathogenic Leptospira spp. PMID- 29038957 TI - [Infections in rheumatology : Differential diagnosis or complication of immunosuppressive therapy]. PMID- 29038958 TI - Glaucoma following childhood cataract surgery: the South India experience. AB - PURPOSE: To determine the characteristics and risk factors for the development of glaucoma after cataract surgery in children seen at a major referral tertiary eye centre in South India. METHODS: This is a retrospective review of the medical records of consecutive patients seen at the glaucoma/paediatric eye clinic of the centre, with a diagnosis of glaucoma secondary to aphakia/pseudophakia over a 5 year period. RESULTS: There were 21 eyes of 14 children that developed glaucoma and 23 eyes of 12 children were selected as control. The mean age (standard deviation SD) at the time of cataract surgery for the glaucoma group was 7.4 (+/- 10.1) months and 39.13 (+/- 41.2) months for the control. The mean follow-up (SD) period was 114.29 (+/- 61.9) months and 97.61 (+/- 43.5) months for the glaucoma and control, respectively. The mean duration from cataract surgery to onset of glaucoma was 81.19 (+/- 52.4) months (median 66 months, range 21-172 months). Multivariate analysis detected age at surgery younger than 12 months (OR 10.45, 95%CI 1.76-62.03, p = 0.010) and ocular anomalies mainly microcornea (OR 7.11, 95%CI 1.14-44.46, p = 0.036) as risk factors for development of glaucoma after paediatric cataract surgery. CONCLUSION: Glaucoma can develop several years after childhood cataract surgery. Surgery in the first year of life and microcornea are risk factors for the development of glaucoma post-surgery. Signs of glaucoma should specifically be looked for during follow-up visits. PMID- 29038959 TI - The effect of additional trabecular aspiration to phacoemulsification and trabectome as a triple procedure in pseudoexfoliation glaucoma: a case-matched study. AB - BACKGROUND: Trabectome surgery combined with phacoemulsification is effective in lowering (intraocular pressure) IOP in pseudoexfoliation glaucoma. Trabectome surgery usually aims to remove two to four clock hours of the trabecular meshwork. When adding trabecular aspiration, the remaining meshwork can be treated as well, and therefore 360 degrees of the meshwork can be reached. This study was conducted to investigate the additional benefits and risks of adding trabecular aspiration to the combination of phacoemulsification and trabectome as a triple procedure. METHODS: Two groups of patients from two centres were compared. The first group underwent phacoemulsification and trabectome (Freiburg), and the second group underwent additional trabecular aspiration (Dusseldorf). Using a case-matched retrospective study design, 50 patients were included into each group. The clinical endpoint was the intraocular pressure at follow up. RESULTS: The mean follow up was 22 months. Mean intraocular pressure decreased in all 100 patients from 25.0 (SD 4.3) to 14.9 mmHg (SD 4.0). Comparing the two groups, the IOP reduction was from 25.0 (SD 5.0) to 14.1 (SD 4.4) mmHg in the triple procedure group compared to a reduction from 25.0 (3.6) to 15.7 (SD 3.4) mmHg in the phaco/trabectome group. The difference was statistically significant (p = 0.03). The number of medication after surgery was reduced from 2.2 (SD 0.9) to 1.7 (SD 0.9) while in the phaco/trabectome group the medication score was reduced from 2.2 (SD 1.0) to 1.1 (SD 0.1) (p < 0.001). CONCLUSIONS: This study shows that the combination of trabectome surgery and phacoemulsification leads to a clinically significant reduction of IOP over several years in patients with pseudoexfoliation glaucoma. The addition of trabecular aspiration as a triple procedure results in further lowering of IOP without causing more side effects. This finding might be biased by the higher medication score in the triple procedure group. PMID- 29038960 TI - Comparison of four 11C-labeled PET ligands to quantify translocator protein 18 kDa (TSPO) in human brain: (R)-PK11195, PBR28, DPA-713, and ER176-based on recent publications that measured specific-to-non-displaceable ratios. AB - Translocator protein (TSPO) is a biomarker for detecting neuroinflammation by PET. 11C-(R)-PK11195 has been used to image TSPO since the 1980s. Here, we compared the utility of four 11C-labeled ligands-(R)-PK11195, PBR28, DPA-713, and ER176-to quantify TSPO in healthy humans. For all of these ligands, BP ND (specific-to-non-displaceable ratio of distribution volumes) was measured by partially blocking specific binding with XNBD173 administration. In high-affinity binders, DPA-713 showed the highest BP ND of 7.3 followed by ER176 (4.2), PBR28 (1.2), and PK11195 (0.8). Only ER176 allows the inclusion of low-affinity binders because of little influence of radiometabolites and high BP ND. If inclusion of all three genotypes is important for study logistics, ER176 is the best of these four radioligands for studying neuroinflammation. PMID- 29038961 TI - Association of indirect restorations with past caries history and present need for restorative treatment in the Northern Finland Birth Cohort 1966. AB - OBJECTIVES: The objective of this study is to examine the prevalence of indirect restorations and their association with past caries history and present need for restorative treatment among adults in Northern Finland. MATERIALS AND METHODS: The study population was a subsample of the Northern Finland Birth Cohort 1966 (n = 1961). The oral examinations were performed in 2012-2013. Indirect restorations (inlays/onlays and single crowns) were recorded tooth wise. Caries history was described with the sum of decayed, missing, and filled teeth (DMF). Caries was assessed using the International Caries Detection and Assessment System (ICDAS). The score of 4 was used as the cut off point for visible decay. Present need for restorative treatment was calculated by summing the decayed (D) and fractured (Fr) teeth. Need for restorative treatment was dichotomized to low [(D + Fr) <= 1] and high [(D + Fr) > 1]. RESULTS: Altogether, 7.8% of the study population had indirect restorations. The prevalence of indirect restorations did not differ within DMF (p = 0.925), but it was higher among the subjects with a low need for restorative treatment (p < 0.001). CONCLUSIONS: Indirect restorations were rare in the adult population and found mainly among the subjects with a low need for restorative treatment. CLINICAL RELEVANCE: The results of the study can encourage dentists to consider more often indirect restorations for subjects with a need for restorative treatment. PMID- 29038962 TI - A comparative study between traditional fixation with miniplates and modified lag screws for the treatment of mandibular fractures. AB - OBJECTIVES: The objective of this study is to investigate two internal fixation surgical techniques for mandibular fractures in order to compare modified lag screw techniques with standard miniplates. MATERIALS AND METHODS: This is an observational prospective study. Three hundred eighteen patients were operated on for mandibular fractures. The patients were divided into two groups according to the type of surgical technique used: modified lag screws (155 patients) and traditional miniplates (163 patients). Analyses were made of sociodemographic and preoperative variables, the parameters related to the fracture type and postoperative data. RESULTS: There were no differences between the two groups regarding their sociodemographic characteristics. The modified lag screws were primarily used with double fractures, while conventional miniplates were more often used with simple fractures. The number of complications was higher with the miniplate technique. The unfavorable fractures had an OR of 5.75 due to postoperative complications; double fractures had an OR of 8.87 and simple fractures an OR of 19.53, which, in both cases, were lower with conventional miniplates than with modified lag screws. CONCLUSION: Modified lag screws provide a rigid fixation system that is as secure as miniplates, but with greater compression between the fragments, less postsurgical gap, faster ossification, and fewer postoperative complications. CLINICAL RELEVANCE: The modified screw technique is a safe tool that does not require any specific osteosynthesis materials not found in a basic traumatology kit and has a lower cost, due to the reduced amount of material used. PMID- 29038963 TI - Lymph node density as a prognostic predictor in patients with betel nut-related oral squamous cell carcinoma. AB - OBJECTIVES: Lymph node metastasis in oral squamous cell carcinoma (OSCC) is a poor prognostic factor. The histopathologic stage (e.g., pN) is used to evaluate the severity of lymph node metastasis; however, the current staging system insufficiently predicts survival and recurrence. We investigated clinical outcomes and lymph node density (LND) in betel nut-chewing individuals. MATERIAL AND METHODS: We retrospectively analyzed 389 betel nut-exposed patients with primary OSCC who underwent surgical resection in 2002-2015. The prognostic significance of LND was evaluated by overall survival (OS) and disease-free survival (DFS) using the Kaplan-Meier method. RESULTS: Kaplan-Meier analyses showed that the 5-year OS and DFS rates in all patients were 60.9 and 48.9%, respectively. Multivariate analysis showed that variables independently prognostic for OS were aged population (hazard ratio [HR] = 1.6, 95% confidence interval [95% CI] = 1.1-2.5; P = .025), and cell differentiation classification (HR = 2.4, 95% CI = 1.4-4.2; P = .002). In pathologic N-positive patients, a receiver operating characteristic (ROC) curve for OS was used and indicated the best cutoff of 0.05, and the multivariate analysis showed that LND was an independent predictor of OS (HR = 2.2, 95% CI = 1.3-3.7; P = .004). CONCLUSIONS: Lymph node density, at a cutoff of 0.05, was an independent predictor of OS and DFS. OS and DFS underwent multiple analyses, and LND remained significant. The pathologic N stage had no influence in the OS analysis. CLINICAL RELEVANCE: LND is a more reliable predictor of survival in betel nut-chewing patients for further post operation adjuvant treatment, such as reoperation or adjuvant radiotherapy. PMID- 29038964 TI - Surgical and oncological outcomes after complete mesocolic excision in right sided colon cancer compared with conventional surgery: a retrospective, single institution study. AB - PURPOSE: The aim of the study was whether complete mesocolic excision (CME) with central vascular ligation (CVL) is associated with a survival benefit compared with traditional procedure in right-sided colon cancer. METHODS: Overall, 251 consecutive patients underwent surgery for right colon cancer between 2007 and 2012. After exclusion, 95 subjects received non-CME surgery before 2010, and 97 subjects received CME surgery after January 2010, when we started to perform CME systematically. The number of lymph nodes, morbidity, and mortality was analyzed. Overall survival (OS) and disease-specific survival (DSS) were investigated. RESULTS: The median number of examined lymph nodes was 33.28 in the CME group and 26.92 in the non-CME group, p < 0.001. Postoperative complications were 21.6% in the CME group and 17.8% in the non-CME group, without significant difference. One out of 192 patients died. Three-year OS was 88% in the CME group and 71% in the non-CME group (p = 0.003). In stage II, 3-year DSS was 97% in the CME group and 86% in the non-CME group. In stage III, the 3-year DSSs in the CME and in the non CME groups were 86 and 67%, respectively (p < 0.001). Cox's regression showed that CME (p = 0.0012), the number of lymph nodes (p = 0.029), and TNM stage (p < 0.001) were significant independent predictors of DSS at 3 years. CONCLUSION: Surgical standardization of CME with CVL for right-sided colon cancer is associated with better staging and prognosis, particularly in UICC stage II and III. This study shows that CME is safe and reproducible with acceptable morbidity. PMID- 29038965 TI - Low risk of complications in patients with first-time acute uncomplicated diverticulitis. AB - PURPOSE: First-time acute uncomplicated diverticulitis (AUD) has been considered to have an increased risk of complication, but the level of evidence is low. The aim of the present study was to evaluate the risk of complications in patients with first-time AUD and in patients with a history of diverticulitis. METHODS: This paper is a population-based retrospective study at Vastmanland's Hospital, Vasteras, Sweden, where all patients were identified with a diagnosis of colonic diverticular disease ICD-10 K57.0-9 from January 2010 to December 2014. The records of all patients were surveyed and patients with a computed tomography (CT)-verified AUD were included. Complications defined as CT-verified abscess, perforation, colonic obstruction, fistula, or sepsis within 1 month from the diagnosis of AUD were registered. RESULTS: Of 809 patients with AUD, 642 (79%) had first-time AUD and 167 (21%) had a previous history of AUD with no differences in demographic or clinical characteristics. In total, 16 (2%) patients developed a complication within 1 month irrespective of whether they had a previous history of diverticulitis (P = 0.345). In the binary logistic regression analysis, first-time diverticulitis was not associated with increased risk of complications (OR 1.58; CI 0.52-4.81). The rate of antibiotic therapy was about 7-10% during the time period and outpatient management increased from 7% in 2010 to 61% in 2014. CONCLUSIONS: The risk for development of complications is low in AUD with no difference between patients with first-time or recurrent diverticulitis. This result strengthens existing evidence on the benign disease course of AUD. PMID- 29038966 TI - The Effect of a Behavioral Weight-Loss Intervention on Depressive Symptoms Among Latino Immigrants in a Randomized Controlled Trial. AB - Evidence of whether behavioral weight-loss interventions reduce depressive symptoms among Latino immigrants is limited. The effect of a behavioral weight loss intervention on depressive symptoms was assessed using data from a clinical trial among Latino immigrants. Participants were randomized to a usual care (UC) control (n = 41), case management (CM) alone (n = 84), or CM with community health worker support (CM+CHW) (n = 82). Generalized estimating equation models were used to compare the impact of each intervention with UC. Effect modification by poverty level was further investigated. Overall, treatment groups were not significantly associated with 24-month changes in CES-D scores. Among participants below the 100% federal poverty level (FPL), those randomized to CM+CHW had 24-month CES-D scores significantly lower (Beta coefficient = 0.72; 95% CI 0.55-0.93) than those in UC (p = 0.01). A behavioral weight-loss intervention providing case management and support from a CHW reduced depressive symptoms among Latino immigrants below the 100% FPL. PMID- 29038967 TI - Morphology and the central nervous system of Eratigena atrica affected by a complex anomaly in the anterior part of the prosoma. AB - Spider embryogenesis is affected by a range of environmental factors. Any sudden, drastic change in the environment may impair spider development, leading to various body deformities. In the present study, we analyze changes in the morphology and structure of the central nervous system of an Eratigena atrica larva, obtained in a teratological experiment in which embryos were exposed to alternating temperatures of 14 and 32 degrees C for the first 10 days. The studied larva had three pedipalps on the right side of the prosoma (polymely), two of which were fused along their entire length (total heterosymely). In addition, there was a short, club-shaped stump between the pedipalps. Histological analysis confirmed major changes in the structure of the subesophageal ganglion, i.e., the fusion of all three ganglia of pedipalps. PMID- 29038968 TI - Anti-fibrotic nintedanib-a new opportunity for systemic sclerosis patients? AB - Systemic sclerosis is a connective tissue disease characterized by progressive skin thickening and a wide spectrum of internal organ involvement. Pathogenesis includes vasculopathy, inflammation, and fibrosis. Although immunosuppressants such as cyclophosphamide and mycophenolate mofetil have shown some benefit in interstitial lung disease management, it is still a major cause of morbi mortality in these patients. Therefore, there is a current need for new therapies. Here, we report a 65-year-old female patient with limited cutaneous systemic sclerosis, anti-topoisomerase-positive and extensive lung disease. The patient developed progressive lung fibrosis under several immunosuppressants and was started on nintedanib, with clinical and functional stabilization. Nintedanib is a tyrosine-kinase inhibitor that blocks several profibrotic pathways, inhibiting proliferation and migration of fibroblasts and decreasing the synthesis of extracellular matrix proteins. It is approved for idiopathic lung fibrosis and has demonstrated good results in inhibiting migration and proliferation of systemic sclerosis dermal fibroblasts, constituting a promising agent for systemic sclerosis-associated lung fibrosis. PMID- 29038969 TI - Microvascular imaging and monitoring of human oral cavity lesions in vivo by swept-source OCT-based angiography. AB - We report the development of optical coherence tomography- (OCT) based angiography (OCTA) to image blood flow within microcirculatory tissue beds in human oral cavity in vivo with a field of view at 10 mm * 10 mm. Three dimensional (3D) structural and vascular images of labial mucosa tissue are obtained at a single 3D acquisition. Pathologic mucosal sites with mouth ulcers are examined using the OCT tomograms and angiograms, upon which to monitor the lesion healing process over a period of 2 weeks. Quantitative metrics of the capillary loop density within the lamina propria layer are evaluated, providing statistically significant difference between healthy and diseased conditions over time. Furthermore, tissue anatomy and vessel morphology of other susceptible sites to ulcer, such as tongue, alveolar mucosa, and labial frenulum, are also imaged to demonstrate the promise of the proposed method as a clinically useful tool for the diagnosis and monitoring of therapeutic treatment of oral tissue abnormalities. PMID- 29038970 TI - Enhanced photoinduced antibacterial activity of a BODIPY photosensitizer in the presence of polyamidoamines. AB - Photosensitizers belonging to the boron-dipyrromethenes (BODIPYs) class were recently found endowed with good efficacy in the antibacterial photodynamic therapy (aPDT) against both Gram-positive and Gram-negative bacteria. In this paper, we report on the remarkable adjuvant effect exerted in this respect by linear polyamidoamines (PAAs), a family of moderately basic polymers obtained by Michael-type polyaddition of amines to bisacrylamides. Three different PAAs (AGMA1, BP-AGMA, and BP-DMEDA) were studied, testing for each two different molecular weight samples (8000 and 24000 Da). At nontoxic concentrations (1 or 10 ug mL-1) all PAAs remarkably improved the killing efficacy of BODIPY upon irradiation with a green LED device (range: from 480 to 580 nm with lambdamax = 525 nm) up to an energy rate of 16.6 J cm-2. A 6-7 log unit decrease in bacteria survival was observed with concentrations of BODIPY of 1.0 and 0.1 uM in the case of Escherichia coli and Staphylococcus aureus, respectively. The one-way analysis of variance (ANOVA) was used to evaluate the statistical significance of different treatments (n >= 3). Thus, the PAA-photosensitizer combination warrants potentially as a new, effective, and mild method of killing bacteria. Moreover, the antibacterial treatment here reported might be successfully applied to defeat the bacterial resistance often encountered with many antibacterial drugs owing to the double action of this two-component treatment. PMID- 29038972 TI - Interactions of plant growth-promoting rhizobacteria and soil factors in two leguminous plants. AB - Although the rhizomicrobiome has been extensively studied, little is known about the interactions between soil properties and the assemblage of plant growth promoting microbes in the rhizosphere. Herein, we analysed the composition and structure of rhizomicrobiomes associated with soybean and alfalfa plants growing in different soil types using deep Illumina 16S rRNA sequencing. Soil pH, P and K significantly affected the composition of the soybean rhizomicrobiome, whereas soil pH and N had a significant effect on the alfalfa rhizomicrobiome. Plant biomass was influenced by plant species, the composition of the rhizomicrobiome, soil pH, N, P and plant growth stage. The beta diversity of the rhizomicrobiome was the second most influential factor on plant growth (biomass). Rhizomicrobes associated with plant biomass were identified and divided into four groups: (1) positively associated with soybean biomass; (2) negatively associated with soybean biomass; (3) positively associated with alfalfa biomass; and (4) negatively associated with alfalfa biomass. Genera assemblages among the four groups differentially responded to soil properties; Group 1 and Group 2 were significantly correlated with soil pH and P, whereas Group 3 and Group 4 were significantly correlated with soil N, K and C. The influence of soil properties on the relative abundance of plant biomass-associated rhizomicrobes differed between soybean and alfalfa. The results suggest the rhizomicrobiome has a pronounced influence on plant growth, and the rhizomicrobiome assemblage and plant growth-associated microbes are differentially structured by soil properties and leguminous plant species. PMID- 29038973 TI - Production of ethylene glycol or glycolic acid from D-xylose in Saccharomyces cerevisiae. AB - The important platform chemicals ethylene glycol and glycolic acid were produced via the oxidative D-xylose pathway in the yeast Saccharomyces cerevisiae. The expression of genes encoding D-xylose dehydrogenase (XylB) and D-xylonate dehydratase (XylD) from Caulobacter crescentus and YagE or YjhH aldolase and aldehyde dehydrogenase AldA from Escherichia coli enabled glycolic acid production from D-xylose up to 150 mg/L. In strains expressing only xylB and xylD, 29 mg/L 2-keto-3-deoxyxylonic acid [(S)-4,5-dihydroxy-2-oxopentanoic acid] (2K3DXA) was produced and D-xylonic acid accumulated to ca. 9 g/L. A significant amount of D-xylonic acid (ca. 14%) was converted to 3-deoxypentonic acid (3DPA), and also, 3,4-dihydroxybutyric acid was formed. 2K3DXA was further converted to glycolaldehyde when genes encoding by either YagE or YjhH aldolase from E. coli were expressed. Reduction of glycolaldehyde to ethylene glycol by an endogenous aldo-keto reductase activity resulted further in accumulation of ethylene glycol of 14 mg/L. The possibility of simultaneous production of lactic and glycolic acids was evaluated by expression of gene encoding lactate dehydrogenase ldhL from Lactobacillus helveticus together with aldA. Interestingly, this increased the accumulation of glycolic acid to 1 g/L. The D-xylonate dehydratase activity in yeast was notably low, possibly due to inefficient Fe-S cluster synthesis in the yeast cytosol, and leading to D-xylonic acid accumulation. The dehydratase activity was significantly improved by targeting its expression to mitochondria or by altering the Fe-S cluster metabolism of the cells with FRA2 deletion. PMID- 29038974 TI - Bioreactors based on immobilized fungi: bioremediation under non-sterile conditions. AB - White-rot fungi are renowned for their remarkable potential to degrade a wide range of organic pollutants. They are applicable in standard bioreactors offering both the use of the continuous mode of action and easy upscaling of the biodegradation process. The recent advance in this field consisted in the use of various fungi and different types of reactors in the treatment of real wastewaters. Most degradation studies involving white-rot fungi carried out so far used controlled, aseptic conditions. However, during bioremediation of real wastewaters, the degradation capacity of the fungi would be significantly affected by autochthonous microorganisms. Consequently, for the development of sustainable bioremediation technologies, it is important to understand the mechanisms involved in the intermicrobial interactions occurring during the bioremediation process. This review summarizes recent applications of white-rot fungi to biodegradation of recalcitrant organopollutants under non-sterile conditions describing the invading microorganism(s) and the way how they affect the stability and degradation efficiency of the fungal bioreactor cultures. In addition, studies where fungal cultures were exposed to defined microbial stress are also reported documenting the effect and mechanisms of microbial interactions. Advanced OMICs techniques, specifically the genomics and metabolomics analyses, are suggested to help in identification of the invading microorganisms and in discovery of mechanisms taking part in the interspecific interactions. PMID- 29038971 TI - The Implementation of Targeted Temperature Management: An Evidence-Based Guideline from the Neurocritical Care Society. AB - BACKGROUND: Targeted temperature management (TTM) is often used in neurocritical care to minimize secondary neurologic injury and improve outcomes. TTM encompasses therapeutic hypothermia, controlled normothermia, and treatment of fever. TTM is best supported by evidence from neonatal hypoxic-ischemic encephalopathy and out-of-hospital cardiac arrest, although it has also been explored in ischemic stroke, traumatic brain injury, and intracranial hemorrhage patients. Critical care clinicians using TTM must select appropriate cooling techniques, provide a reasonable rate of cooling, manage shivering, and ensure adequate patient monitoring among other challenges. METHODS: The Neurocritical Care Society recruited experts in neurocritical care, nursing, and pharmacotherapy to form a writing Committee in 2015. The group generated a set of 16 clinical questions relevant to TTM using the PICO format. With the assistance of a research librarian, the Committee undertook a comprehensive literature search with no back date through November 2016 with additional references up to March 2017. RESULTS: The Committee utilized GRADE methodology to adjudicate the quality of evidence as high, moderate, low, or very low based on their confidence that the estimate of effect approximated the true effect. They generated recommendations regarding the implementation of TTM based on this systematic review only after considering the quality of evidence, relative risks and benefits, patient values and preferences, and resource allocation. CONCLUSION: This guideline is intended for neurocritical care clinicians who have chosen to use TTM in patient care; it is not meant to provide guidance regarding the clinical indications for TTM itself. While there are areas of TTM practice where clear evidence guides strong recommendations, many of the recommendations are conditional, and must be contextualized to individual patient and system needs. PMID- 29038975 TI - Applying a riboregulator as a new chromosomal gene regulation tool for higher glycogen production in Synechocystis sp. PCC 6803. AB - Cyanobacteria are one of the most attractive hosts for biofuel production; however, genetic approaches to regulate specific chromosomal genes in cyanobacteria remain limited. With the aim of developing a novel method to regulate chromosomal gene expression in cyanobacteria, we focused on riboregulatory technology. Riboregulators are composed of two RNA fragments whose interaction leads to target gene regulation with high specificity. In this study, we inserted a riboregulator sequence upstream of the chromosomal gene encoding AbrB-like transcriptional regulator, cyAbrB2, to investigate the utility of this tool. The inserted riboregulator was able to regulate cyabrB2 gene expression, with a high ON-OFF ratio up to approximately 50-fold. The transcription levels of several genes for which cyAbrB2 acts as a transcriptional upregulator were also decreased. Further, the cyAbrB2 expression-repressed mutant showed high glycogen accumulation, equivalent to that in the cyabrB2 deletion mutant (DeltacyabrB2). Phenotypic similarities between the cyabrB2 expression-repressed mutant and the DeltacyabrB2 mutant suggest that the riboregulator can potentially be used as a new chromosomal gene regulation tool in cyanobacteria. PMID- 29038976 TI - Classification of human and zoonotic group hepatitis E virus (HEV) using antigen detection. AB - Hepatitis E virus (HEV) is one of the major pathogens that cause acute viral hepatitis. The human (genotypes 1 and 2) and zoonotic (genotypes 3 and 4) groups of HEV present different epidemiology and clinical features. In this study, we developed a classification method for rapidly classifying HEV into human or zoonotic groups that combines a general antigen test with a zoonotic group specific antigen test. Evaluation of serial samples from HEV-infected rhesus monkeys indicated that HEV antigen-positive samples can be classified using the antigen-based classification method. The antigen-based classification method was evaluated further on 55 genotyped samples from acute hepatitis E patients, including 9 human and 46 zoonotic groups. The novel method was completely consistent with the sequencing results: 9/9 for the human groups (100%, 95% confidence interval [CI] 66.4-100%) and 46/46 for the zoonotic groups (100%, 95% CI 92.3-100%). This method was also successfully used for the clustering of some samples that could not be clustered by sequencing. Compared with the sequencing based method, this method is less time-consuming, less expensive, and less technically complex and is therefore ideal for large numbers of samples. In conclusion, this study provides a convenient and sensitive method for classifying different groups of HEV, and it has potentially important public health applications, especially in underdeveloped areas that cannot afford the high cost of nucleic acid testing. PMID- 29038978 TI - Panuveitis-like reaction following encircling laser retinopexy/cerclage in a 21 year-old male. AB - BACKGROUND: Severe vision-impairing ocular inflammation is rarely reported following extensive laser. Previous cases have involved retinal photocoagulation for diabetic retinopathy resolving over days. This report documents a rare instance of this where encircling retinopexy/cerclage was done as fellow eye retinal detachment prophylaxis in a patient with no overt comorbidities. RESULTS: A panuveitis-like reaction with severe, near-total visual impairment was documented 1 day following single-sitting encircling laser retinopexy/cerclage done as fellow eye prophylaxis for a 21-year-old male presenting with total retinal detachment in the other eye. Pre-laser findings were unremarkable, other than an equatorial ring of fine vitreous condensations. Pre-laser vision of 20/20 uncorrected decreased to hand motion, light perception on all quadrants, accompanied by severe anterior segment inflammation with hypopyon, retrolental membranes, vitreous cells, and choroidal effusion/suspicious exudative retinal detachment on B-scan ultrasound and ultrasound biomicroscopy. Combination of oral, topical, and depot steroids resulted in restoration of vision by 1 month post-laser, but with persistent anterior segment inflammation and retrolental membranes at month 2 post-laser. CONCLUSIONS: The atypically inordinate degree of post-laser inflammation and multiple sequelae following encircling retinopexy/cerclage as retinal detachment prophylaxis, in this case, demonstrate the potency and risks of retinal photocoagulation. The value of pre-laser assessment for potential risk factors, caution and mindfulness in conducting the intervention, and, the value of prudent and thorough follow-up are exhibited in this case. PMID- 29038977 TI - Prevalence of Kaposi's sarcoma-associated herpesvirus among intravenous drug users: a systematic review and meta-analysis. AB - Intravenous drug users (IDUs) have been demonstrated to be highly vulnerable to HIV/AIDS. Nevertheless, the prevalence of Kaposi's sarcoma associated herpesvirus (KSHV), an important co-infected agent with HIV, among this population remained obscure. We conducted a systematic review on the epidemiological features of KSHV among IDUs worldwide. Eligible studies were retrieved from 6 electronic databases (PubMed, EMBASE, Web of Science, CBM, CNKI and Wanfang). We calculated the pooled prevalence and 95% confidence interval (CI) overall and among subgroups using either random-effects model or fixed-effects model depending on between-study heterogeneity. The potential publication bias was assessed by the Egger's test. A meta-regression analysis was performed to explore the sources of heterogeneity. Finally, twenty-two studies with a total sample of 7881 IDUs were included in the analysis. The pooled prevalence of KSHV was 14.71% (95% CI 11.12%-19.46%) among IDUs. Specifically, KSHV prevalence was 10.86% (95% CI 6.95%-16.96%) in HIV negative IDUs, and 13.56% (95% CI 10.57%-17.38%) in HIV-positive IDUs. Moreover, prevalence among IDUs from the three continents involved in the current study was similar: 16.10% (95%CI 7.73%-33.54%) in Asia; 14.22% (95%CI 8.96%-22.57%) in Europe and 14.06% (95%CI 11.38%-17.37%) in America. Globally, IDUs are at higher risk of the KSHV infection when compared with the general population, regardless of geographical region or HIV-infection status. PMID- 29038979 TI - Decreased Metabolism in the Posterior Medial Network with Concomitantly Increased Metabolism in the Anterior Temporal Network During Transient Global Amnesia. AB - Perturbation of corticohippocampal circuits is a key step in the pathogenesis of transient global amnesia. We evaluated the spatial distribution of altered cerebral metabolism to determine the location of the corticohippocampal circuits perturbed during the acute stage of transient global amnesia. A consecutive series of 12 patients with transient global amnesia who underwent 18F fluorodeoxyglucose positron emission tomography within 3 days after symptom onset was identified. We used statistical parametric mapping with two contrasts to identify regions of decreased and increased brain metabolism in transient global amnesia patients compared with 25 age-matched controls. Transient global amnesia patients showed hypometabolic clusters in the left temporal and bilateral parieto occipital regions that belong to the posterior medial network as well as, hypermetabolic clusters in the bilateral inferior frontal regions that belong to the anterior temporal network. The posterior medial and anterior temporal networks are the two main corticohippocampal circuits involved in memory-guided behavior. Decreased metabolism in the posterior medial network might explain the impairment of episodic memory observed during the acute stage of transient global amnesia. Concomitant increased metabolism within the anterior temporal network might occur as a compensatory mechanism. PMID- 29038981 TI - Erratum to: Discussing euthanasia in two German states: scientific terminology and public discourse in the German Democratic Republic and the Federal Republic of Germany. PMID- 29038980 TI - Testing an Incentive-Sensitisation Approach to Understanding Problem Slot-Machine Gambling Using an Online Slot-Machine Simulation. AB - This study aims to test the application of the incentive-sensitisation theory to slot-machine gambling behaviour. The theory posits that for problem gamblers (PGs), gambling strengthens the response of motivational pathways in the mid brain to gambling cues, eliciting strong wanting, independent of liking. Non problem gamblers (NPGs) experience weaker changes to motivational pathways so liking and wanting remain associated. Hence, it is predicted that wanting to gamble will be greater than liking for PGs but there will be no difference for NPGs; wanting will be greater for PGs than for NPGs; and, wanting but not liking will predict whether PGs continue gambling, whereas both will predict this for NPGs. During gambling on an online simulated slot-machine, 39 PGs and 87 NPGs rated 'liking' and 'wanting'. Participants played at least 3 blocks of 10-20 spins, and then had the option of playing up to 4 additional blocks; to continue playing they had to complete an effortful task, so that 'number of blocks played' acted as an additional indirect measure of wanting. Results supported hypotheses except on the indirect measure of wanting (the number of blocks played). PMID- 29038982 TI - Hierarchy, determinism, and specificity in theories of development and evolution. AB - The concepts of hierarchical organization, genetic determinism and biological specificity (for example of species, biologically relevant macromolecules, or genes) have played a crucial role in biology as a modern experimental science since its beginnings in the nineteenth century. The idea of genetic information (specificity) and genetic determination was at the basis of molecular biology that developed in the 1940s with macromolecules, viruses and prokaryotes as major objects of research often labelled "reductionist". However, the concepts have been marginalized or rejected in some of the research that in the late 1960s began to focus additionally on the molecularization of complex biological structures and functions using systems approaches. This paper challenges the view that 'molecular reductionism' has been successfully replaced by holism and a focus on the collective behaviour of cellular entities. It argues instead that there are more fertile replacements for molecular 'reductionism', in which genomics, embryology, biochemistry, and computer science intertwine and result in research that is as exact and causally predictive as earlier molecular biology. PMID- 29038983 TI - Refractive, corneal, and ocular residual astigmatism: distribution in a German population and age-dependency: the Gutenberg health study. PMID- 29038984 TI - Perturbation vectors to evaluate air quality using lichens and bromeliads: a Brazilian case study. AB - Samples of one lichen species, Parmotrema crinitum, and one bromeliad species, Tillandsia usneoides, were collected in the state of Rio de Janeiro, Brazil, at four sites differently affected by anthropogenic pollution. The concentrations of aluminum, cadmium, copper, iron, lanthanum, lead, sulfur, titanium, zinc, and zirconium were determined by inductively coupled plasma-atomic emission spectroscopy. The environmental diagnosis was established by examining compositional changes via perturbation vectors, an underused family of methods designed to circumvent the problem of closure in any compositional dataset. The perturbation vectors between the reference site and the other three sites were similar for both species, although body concentration levels were different. At each site, perturbation vectors between lichens and bromeliads were approximately the same, whatever the local pollution level. It should thus be possible to combine these organisms, though physiologically different, for air quality surveys, after making all results comparable with appropriate correction. The use of perturbation vectors seems particularly suitable for assessing pollution level by biomonitoring, and for many frequently met situations in environmental geochemistry, where elemental ratios are more relevant than absolute concentrations. PMID- 29038985 TI - Showing the Unsayable: Participatory Visual Approaches and the Constitution of 'Patient Experience' in Healthcare Quality Improvement. AB - This article considers the strengths and potential contributions of participatory visual methods for healthcare quality improvement research. It argues that such approaches may enable us to expand our understanding of 'patient experience' and of its potential for generating new knowledge for health systems. In particular, they may open up dimensions of people's engagement with services and treatments which exceed both the declarative nature of responses to questionnaires and the narrative sequencing of self reports gathered through qualitative interviewing. I will suggest that working with such methods may necessitate a more reflexive approach to the constitution of evidence in quality improvement work. To this end, the article will first consider the emerging rationale for the use of visual participatory methods in improvement before outlining the implications of two related approaches-photo-elicitation and PhotoVoice-for the constitution of 'experience'. It will then move to a participatory model for healthcare improvement work, Experience Based Co-Design (EBCD). It will argue that EBCD exemplifies both the strengths and the limitations of adequating visual participatory approaches to quality improvement ends. The article will conclude with a critical reflection on a small photographic study, in which the author participated, and which sought to harness service user perspectives for the design of psychiatric facilities, as a way of considering the potential contribution of visual participatory methods for quality improvement. PMID- 29038986 TI - Preparation and Evaluation of Artemether Liposomes for Enhanced Anti-Tumor Therapy. AB - The aim of the study was to design liposomes (Lips) of artemether (ARM), a plant derived drug for treatment of metastatic tumors, for the intravenous delivery. The ARM-Lips were prepared using ethanol injection method. Based on the optimization of formulation with single-factor experiments, ARM-Lips were spherical with a uniform particle size (187.3 +/- 1.83) nm and its EE and DL were (94.49 +/- 1.18)% and (10.94 +/- 0.10)%, respectively. The in vitro drug release characteristics of ARM-Lips possessed a sustained release characteristic, and their behavior was in accordance with the first-order kinetics equation. In vivo, after intravenous injection to mice, the t1/2beta, MRT, and AUC of ARM-Lips were 8.38-, 3.38-, and 3.11-fold those of ARM solution (ARM-Sol), respectively. In the pharmacodynamics studies, the tumor doubling time, growth inhibition rate, and specific growth rate of tumor of ARM-Lips were 1.97 times, 1.54 times, and 0.51 times those of ARM-Sol, respectively, which indicated that the anti-tumor effect of ARM-Lips was significantly stronger than that of ARM-Sol. These encouraging results revealed that ARM-Lips would serve as an efficient carrier for ARM for increasing therapeutic efficacy on tumor. PMID- 29038987 TI - Development and Optimization of a Starch-Based Co-processed Excipient for Direct Compression Using Mixture Design. AB - The development of novel excipients with enhanced functionality has been explored using particle engineering by co-processing. The aim of this study was to improve the functionality of tapioca starch (TS) for direct compression by co-processing with gelatin (GEL) and colloidal silicon dioxide (CSD) in optimized proportions. Design of Experiment (DoE) was employed to optimize the composition of the co processed excipient using the desirability function and other supporting studies as a basis for selecting the optimized formulation. The co-processed excipient (SGS) was thereafter developed by the method of co-fusion. Flow and compaction studies of SGS were carried out in comparison to its parent component (TS) and physical mixture (SGS-PM). Tablets were prepared by direct compression (DC) containing ibuprofen (200 mg) as a model for poor compressibility using SGS, Prosolv(r), and StarLac(r) as multifunctional excipients. The optimized composition of SGS corresponded to TS (90%), GEL (7.5%), and CSD (2.5%). The functionality of SGS was improved relative to SGS-PM in terms of flow and compression. Tablets produced with SGS were satisfactory and conformed to USP specifications for acceptable tablets. SGS performed better than Prosolv(r) in terms of disintegration and was superior to StarLac with respect to tensile strength and disintegration time. The application of DoE was successful in optimizing and developing a starch-based co-processed excipient that can be considered for direct compression tableting. PMID- 29038988 TI - Can the gastrointestinal microbiota be modulated by dietary fibre to treat obesity? AB - Recent research suggests that the human gastrointestinal microbiota is greatly involved in yielding, storing and expending energy from the diet; therefore, it may be a further factor in linking diet to obesity. The gut microbial composition is affected by diet throughout the human lifespan, and is highly dynamic and efficient in response to dietary alterations in particular to dietary fibre intake. Short-chained fatty acids (SCFA) are the bi-product of fibre fermentation and have both obesogenic and anti-obesogenic properties. The production of specific forms of SCFAs depends on the microbes available in the gut and the type of fibre ingested. The gut microbiome associated with healthy lean individuals has a higher microbial biodiversity and a greater Bacteroidete to Firmicute ratio compared to the obese individuals associated with microbiome. These gut microbial associations are similar to those seen in individuals with high and low dietary fibre intakes, respectively. Metabolites generated by Bacteroidetes and Firmicutes include the three main SCFA related to obesity, namely butyrate, acetate and propionate. However, neither Bacteroidetes nor Firmicutes is purely causative or purely preventative of obesity. More research is crucial in linking the various types of fibre with particular SCFA production and the microbiome it promotes before suggesting that dietary fibre modulation of the gut microbiome can treat obesity. However, the long-term dietary trend plays the principal role in assembling the diversity and abundance of gut microbes; thus, a sustained diet high in fibre may help prevent obesity by promoting a microbiome associated with a lean phenotype. PMID- 29038989 TI - Interactions Between Carnivores in Madagascar and the Risk of Disease Transmission. AB - Introduced carnivores exert considerable pressure on native predators through predation, competition and disease transmission. Recent research shows that exotic carnivores negatively affect the distribution and abundance of the native and endangered carnivores of Madagascar. In this study, we provide information about the frequency and distribution of interactions between exotic (dogs and cats) and native carnivores (Eupleridae) in the Betampona Natural Reserve (BNR), Madagascar, using noninvasive camera trap surveys. Domestic dogs (Canis familiaris) were the most frequently detected carnivore species within the BNR, and we found that indirect interactions between exotic and native carnivores were frequent (n = 236). Indirect interactions were more likely to occur near the research station (incidence rate ratio = 0.91), which may constitute a disease transmission hot spot for carnivores at BNR. The intervals between capture of native and exotic carnivores suggest that there is potential for pathogen transmission between species in BNR. These capture intervals were significantly shorter near the edge of the reserve (P = 0.04). These data could be used to implement biosecurity measures to monitor interactions and prevent disease transmission between species at the domestic animal and wildlife interface. PMID- 29038990 TI - Personality and Alexithymic Disparity in Obsessive-Compulsive Disorder Based on Washing and Checking. AB - The aim of this study was to investigate pathway relationship of personality characteristics and alexithymic traits in OCD symptoms of obsession, and compulsive behavior of washing and checking. Two-hundred and seventy patients diagnosed with OCD were consecutively recruited from the psychiatric outpatient department of a teaching hospital. Structural equation modeling showed those more neurotic, less extraverted and with higher levels of alexithymia difficulty identifying feelings (DIF), difficulty describing feelings (DDF) and externally oriented thinking (EOT) were more likely to develop obsessive thoughts. Those less extraverted was more prone to develop washing compulsions, and those more neurotic were more likely to develop checking compulsions. EOT was the only alexithymic trait to have no gender difference within this group of patients with OCDs. The different personality and alexithymic trait pathways found between OCD obsession, washing and checking symptoms provide support that they may be different subtypes within the OCD diagnosis. Obsession was associated with washing, but not checking. Furthermore, no gender difference was found between the obsession and compulsive symptoms. Extraversion and neuroticism can be used to differentiate washing and checking, and alexithymia to differentiate washing and obsessions. This should be taken into consideration for intervention targeting patients with different OCD symptoms. PMID- 29038991 TI - Pathophysiological and therapeutic implications in patients with atrial fibrillation and heart failure. AB - Heart failure and atrial fibrillation are common and responsible for significant mortality of patients. Both share the same risk factors like hypertension, ischemic heart disease, diabetes, obesity, arteriosclerosis, and age. A variety of microscopic and macroscopic changes favor the genesis of atrial fibrillation in patients with preexisting heart failure, altered subcellular Ca2+ homeostasis leading to increased cellular automaticity as well as concomitant fibrosis that are induced by pressure/volume overload and altered neurohumoral states. Atrial fibrillation itself promotes clinical deterioration of patients with preexisting heart failure as atrial contraction significantly contributes to ventricular filling. In addition, atrial fibrillation induced tachycardia can even further compromise ventricular function by inducing tachycardiomyopathy. Even though evidence has been provided that atrial functions significantly and independently of confounding ventricular pathologies, correlate with mortality of heart failure patients, rate and rhythm controls have been shown to be of equal effectiveness in improving mortality. Yet, it also has been shown that cohorts of patients with heart failure benefit from a rhythm control concept regarding symptom control and hospitalization. To date, amiodarone is the most feasible approach to restore sinus rhythm, yet its use is limited by its extensive side-effect profile. In addition, other therapies like catheter-based pulmonary vein isolation are of increasing importance. A wide range of heart failure-specific therapies are available with mixed impact on new onset or perpetuation of atrial fibrillation. This review highlights pathophysiological concepts and possible therapeutic approaches to treat patients with heart failure at risk for or with atrial fibrillation. PMID- 29038992 TI - [Soft tissue sarcoma: how can posttreatment alterations be distinguished from recurrences?] AB - The recognition of recurrent soft tissue sarcomas and the differentiation from post-treatment alterations is complex. This article aims to assist the clinical radiologist in the systematic evaluation of local follow-up imaging in soft tissue sarcoma patients. Soft tissue sarcomas encompass multiple entities with different recurrence rates and follow-up intervals. Approved and up to date recommendations are provided, including imaging techniques. The past medical history of the patient, the clinical situation and previous therapies should be known in detail, including surgery, radiation therapy and chemotherapy. Previous imaging results should be consulted, if available. This article describes the time-dependent imaging spectrum of local post-therapeutic as well as local treatment-related complications. These include early complications, such as seromas, hematomas and infections, as well as late complications, including edema, fibrosis and joint stiffness, and also inflammatory pseudotumors, which may occur after variable time intervals. The imaging appearance of local recurrent and radiation-associated sarcoma are elucidated. In particular, magnetic resonance imaging (MRI) criteria are provided, which may help in differentiating post-therapeutic alterations from recurrent soft tissue sarcomas. PMID- 29038993 TI - The Ups and Downs of Repeated Cleavage and Internal Fragment Production in Top Down Proteomics. AB - Analysis of whole proteins by mass spectrometry, or top-down proteomics, has several advantages over methods relying on proteolysis. For example, proteoforms can be unambiguously identified and examined. However, from a gas-phase ion chemistry perspective, proteins are enormous molecules that present novel challenges relative to peptide analysis. Herein, the statistics of cleaving the peptide backbone multiple times are examined to evaluate the inherent propensity for generating internal versus terminal ions. The raw statistics reveal an inherent bias favoring production of terminal ions, which holds true regardless of protein size. Importantly, even if the full suite of internal ions is generated by statistical dissociation, terminal ions are predicted to account for at least 50% of the total ion current, regardless of protein size, if there are three backbone dissociations or fewer. Top-down analysis should therefore be a viable approach for examining proteins of significant size. Comparison of the purely statistical analysis with actual top-down data derived from ultraviolet photodissociation (UVPD) and higher-energy collisional dissociation (HCD) reveals that terminal ions account for much of the total ion current in both experiments. Terminal ion production is more favored in UVPD relative to HCD, which is likely due to differences in the mechanisms controlling fragmentation. Importantly, internal ions are not found to dominate from either the theoretical or experimental point of view. Graphical abstract ?. PMID- 29038994 TI - Reply to the Comment on: "Nominal Mass?" by Athula B. Attygalle and Julius Pavlov, J. Am. Soc. Mass Spectrom. 28, 1737-1738 (2017). PMID- 29038995 TI - Characterization and Analysis of Paper Spray Ionization of Organic Compounds. AB - Paper spray ionization has arisen relatively recently as a complement and alternative to electro- and nanospray ionization with silica capillaries. A majority of the work in the present literature focuses on the chemical aspect of paper spray. In order to study the physical and phenomenological facet of its implementation, we measured current and voltage distributions of Taylor cones. To study transport phenomena on filter paper, we addressed the behavior of large, sparingly soluble tetraalkylammonium ions, which are usually used as mobility standards, in paper spray. The variation of intensity with time of monomers and dimers of these ions was measured with a differential mobility analyzer and compared with that produced by contamination in the paper. At the same time, we evaluated the proficiency of different paper spray techniques for protein analysis using nano spray as a reference. Experiments suggest that Taylor cones in paper spray are subject to hysteresis, whereas transport phenomena in the porous substrate notably affects the ionization of the sample. Additionally, we observed that paper spray tends to favor lower charge states in proteins. Graphical Abstract. PMID- 29038996 TI - Combining Structural Probes in the Gas Phase - Ion Mobility-Resolved Action-FRET. AB - In the context of native mass spectrometry, the development of gas-phase structural probes sensitive to the different levels of structuration of biomolecular assemblies is necessary to push forward conformational studies. In this paper, we provide the first example of the combination of ion mobility (IM) and Forster resonance energy transfer (FRET) measurements within the same experimental setup. The possibility to obtain mass- and mobility-resolved FRET measurements is demonstrated on a model peptide and applied to monitor the collision-induced unfolding of ubiquitin. Graphical Abstract ?. PMID- 29038997 TI - Multiparticle Simulations of Quadrupolar Ion Detection in an Ion Cyclotron Resonance Cell with Four Narrow Aperture Detection Electrodes. AB - The current paradigm in FT-ICR cell design is to approximate the ideal three dimensional quadratic trapping potential as closely as possible to maintain ion cloud spatial coherence and achieve long transients, either with hyperbolically shaped electrodes, shimming electrodes, or by dynamic harmonization. In sharp contrast, the FT-ICR analyzer cell with four narrow aperture detection electrodes (NADEL) introduces significant anharmonic terms to the trapping potential. This analyzer cell is capable of quadrupolar detection by which one can measure a signal that is close to the unperturbed cyclotron frequency. This is far less sensitive to trapping potential and space charge shifts than the reduced cyclotron frequency measured in conventional ICR cells. The quadrupolar mode of ion detection in NADEL cells has been examined previously by SIMION simulations of ion clouds with up to 500 ions per simulation. Here, the behavior of the NADEL analyzer cell is examined through particle-in-cell (PIC) simulations, which allows us to examine the behavior of large populations (tens of thousands) of ions with space charge considerations, and to calculate the induced charge on the NADEL detection electrodes, and thus the transient signal. PIC simulations confirm a unique spatial distribution of the ions, with a coherent motion that results in long transient signals. Dependence of the ion cloud and image current signal on cell design, ion energy, and magnetron radius are examined. Coalescence effects are compared with those found in a dynamically harmonized cell. The insensitivity of the measured cyclotron frequency to space-charge is demonstrated both with simulations and experimentally. Graphical Abstract ?. PMID- 29038998 TI - Effect of Electrode Geometry on the Classification Performance of Rapid Evaporative Ionization Mass Spectrometric (REIMS) Bacterial Identification. AB - The recently developed automated, high-throughput monopolar REIMS platform is suited for the identification of clinically important microorganisms. Although already comparable to the previously reported bipolar forceps method, optimization of the geometry of monopolar electrodes, at the heart of the system, holds the most scope for further improvements to be made. For this, sharp tip and round shaped electrodes were optimized to maximize species-level classification accuracy. Following optimization of the distance between the sample contact point and tube inlet with the sharp tip electrodes, the overall cross-validation accuracy improved from 77% to 93% in negative and from 33% to 63% in positive ion detection modes, compared with the original 4 mm distance electrode. As an alternative geometry, round tube shaped electrodes were developed. Geometry optimization of these included hole size, number, and position, which were also required to prevent plate pick-up due to vacuum formation. Additional features, namely a metal "X"-shaped insert and a pin in the middle were included to increase the contact surface with a microbial biomass to maximize aerosol production. Following optimization, cross-validation scores showed improvement in classification accuracy from 77% to 93% in negative and from 33% to 91% in positive ion detection modes. Supervised models were also built, and after the leave 20% out cross-validation, the overall classification accuracy was 98.5% in negative and 99% in positive ion detection modes. This suggests that the new generation of monopolar REIMS electrodes could provide substantially improved species level identification accuracies in both polarity detection modes. Graphical abstract. PMID- 29038999 TI - Methods for Cytogenetic Chromosome Barcoding and Chromosome Painting in Brachypodium distachyon and Its Relative Species. AB - Brachypodium distachyon provides a particularly appealing object for molecular cytogenetic analysis due to its compact genome and low repetitive DNA content, as well as low (x = 5) basic number of chromosomes easily identifiable on the basis of their morphometric features. Some of these features, such as genome compactness, are shared by the other members of the genus, thus making them amenable for comparative cytogenetic mapping. Cytogenetic infrastructure established for B. distachyon was initially based on fluorescence in situ hybridization with various tandemly repeated sequences as probes. The molecular cytogenetic studies advanced greatly with the development of B. distachyon large DNA insert genomic libraries. These resources coupled with the access to the fully sequenced genome of B. distachyon enabled chromosome painting in monocots for the first time. This pioneering work was subsequently extended to other Brachypodium species, allowing insight into grass karyotype evolution. In this protocol we describe the methods of making somatic and meiotic chromosome preparations, probe labeling, FISH with BAC clones, a strategy for chromosome barcoding and chromosome painting in B. distachyon, and comparative chromosome painting in the other Brachypodium species. PMID- 29039000 TI - Transcriptional and Posttranscriptional Regulation of Drought Stress Treatments in Brachypodium Leaves. AB - Plant sensing drought stress conditions activate complex molecular networks leading to a rapid reprogramming of plant physiology and metabolism, in order to survive in suboptimal conditions.Here, we describe a standardized in vivo soil drought assay to investigate the effects of drought stress on leaf growth. Since it is now clear that stress responses can be specific to developmental stages and cell types, we describe a procedure to dissect the leaf in three distinct areas in order to study transcriptional and posttranscriptional gene regulation on both organ and cellular levels. Noncoding RNAs, both small RNAs and long noncoding RNAs, are emerging to be deeply involved in abiotic stress responses, acting as molecular switches, interconnecting different response pathways. Here, we illustrate the methodology that has been used to identify miRNAs involved in drought response and to analyze the modulation of expression of their putative targets, in order to gain a complete picture of transcriptional and posttranscriptional regulation driven by noncoding RNAs. PMID- 29039001 TI - Brachypodium distachyon Long Noncoding RNAs: Genome-Wide Identification and Expression Analysis. AB - Recent advances in high throughput sequencing technology have revealed a pervasive and complex transcriptional activity of all eukaryotic genomes and have allowed the identification and characterization of several classes of noncoding RNAs (ncRNAs) with key roles in various biological processes. Among ncRNAs, long ncRNAs (lncRNAs) are transcripts typically longer than 200 nucleotides whose members tend to be expressed at low levels, show a lack of phylogenetic conservation and exhibit tissue-specific, cell-specific, or stress-responsive expression profiles.Although a large set of lncRNAs has been identified both in animal and plant systems, the regulatory roles of lncRNAs are only beginning to be recognized and the molecular basis of lncRNA mediated gene regulation remains largely unexplored, particularly in plants.Here, we describe an efficient methodology to identify long noncoding RNAs using next-generation sequencing data. PMID- 29039002 TI - A Highly Efficient and Reproducible Fusarium spp. Inoculation Method for Brachypodium distachyon. AB - Fusarium spp. are devastating fungal pathogens which cause significant losses in many cereal crops like wheat, maize, and barley. Genetic improvement of disease resistance requires an improved understanding of defense-associated processes operating in the host in response to an attack by Fusarium spp. Brachypodium distachyon is emerging as a model where host-cereal-infecting pathogen interactions can be studied conveniently. However, this requires developing an efficient infection assay that facilitates quick screening of germplasm (e.g., mutant lines). Here, we provide an efficient and reproducible Fusarium infection assay for Brachypodium. We believe this method will help further develop Brachypodium as a model for genetic improvement of disease resistance in cereals against Fusarium pathogens. PMID- 29039003 TI - Tissue Culture (Somatic Embryogenesis)-Induced Tnt1 Retrotransposon-Based Mutagenesis in Brachypodium distachyon. AB - Brachypodium distachyon is a model grass species for economically important cereal crops. Efforts are in progress to develop useful functional genomic resources in Brachypodium. A tobacco retrotransposon, Tnt1, has been used successfully in recent past to generate insertional mutagenesis in several dicot plant species. Tnt1 retrotransposon replicates, transposes, and inserts at multiple random genomic locations in the plant genome. Transposition occurs only during somatic embryogenesis but not during seed transmission. We developed Brachypodium transgenic plants that can express the Tnt1 element. Here, we describe an efficient tissue culture-based approach to generate Tnt1 insertional mutant population using transgenic Brachypodium line expressing the Tnt1 retrotransposon. PMID- 29039004 TI - Methods for Xyloglucan Structure Analysis in Brachypodium distachyon. AB - Matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF MS) has become an important tool for the analysis of biomolecules, such as DNA, peptides, and oligosaccharides. This technique has been developed as a rapid, sensitive, and accurate means for analyzing cell wall polysaccharide structures. Here, we describe a method using mass spectrometry to provide xyloglucan composition and structure information of Brachypodium plants which will be useful for functional characterization of xyloglucan biosynthesis pathway in Brachypodium distachyon. PMID- 29039005 TI - Genomic Approaches to Analyze Alternative Splicing, A Key Regulator of Transcriptome and Proteome Diversity in Brachypodium distachyon. AB - Alternative splicing (AS) promotes transcriptome and proteome diversity in plants, which influences growth and development, and host responses to stress. Advancements in next-generation sequencing, bioinformatics, and computational biology tools have allowed biologists to investigate AS landscapes on a genome wide scale in several plant species. Furthermore, the development of Brachypodium distachyon (Brachypodium) as a model system for grasses has facilitated comparative studies of AS within the Poaceae. These analyses revealed a plethora of genes in several biological processes that are alternatively spliced and identified conserved AS patterns among monocot and dicot plants. In this chapter, using a Brachypodium-virus pathosystem as a research template, we provide an overview of genomic and bioinformatic tools that can be used to investigate constitutive and alternative splicing in plants. PMID- 29039006 TI - Information Resources for Functional Genomics Studies in Brachypodium distachyon. AB - Online tools and databases play an essential role in the promotion of functional genomics studies. Several resources for information regarding Brachypodium distachyon (Brachypodium) are available on the Web. In this chapter, we focus on recently published resources for Brachypodium research. The Brachypodium.org website ( http://www.brachypodium.org /) is an information portal that provides links to various genomic resources regarding Brachypodium, including genome annotation and re-sequencing datasets of accessions. RIKEN Full-length cDNA Database (RBFLDB, http://brachy.bmep.riken.jp/ver.1/index.pl ) is a web accessible database that provides information of Brachypodium full-length cDNAs (FLcDNAs) collected in RIKEN and updated gene structures of Brachypodium based on the FLcDNA sequences as well as results of comparative analyses with available sequence resources for Triticeae crops, wheat, and barley. We introduce the functionalities and availability of these important information resources. Furthermore, we also present brief descriptions of useful online tools that facilitate Brachypodium functional genomics studies. PMID- 29039007 TI - Methods for Functional Transgenics: Development of Highly Efficient Transformation Protocol in Brachypodium and Its Suitability for Advancing Brachypodium Transgenics. AB - Plant transformation is an invaluable technique in plant genomics by which an extra foreign DNA sequence is introduced into a plant genome. Changing the plant genome is leading to owning new genetic characteristics. Model plant is a keystone in a study of the comprehensive plant phylum. Here, I describe an efficient method to transform the plant species Brachypodium distachyon which, due to its characters, is developing to be an important plant model. PMID- 29039008 TI - Molecular Markers in Whole Genome Evolution of Brachypodium. AB - Molecular markers play more and more important role in population genetic and phylogenetic studies; choice of marker systems for a particular study has become a serious problem. These marker systems have different advantages and disadvantages, so it is imperative to keep in mind all the pros and cons of the technique while selecting one for the problem to be addressed.Here, we concisely introduced three molecular marker techniques, namely SSR, ISSR, and RFLP. We elaborated their properties such as reliability, simplicity, cost-effectiveness, and speed, in addition to data analysis of genetic diversity. We have outlined here the whole methodology of these techniques. PMID- 29039009 TI - Estimate Codon Usage Bias Using Codon Usage Analyzer (CUA). AB - One amino acid is added to a growing peptide by a ribosome through reading triple nucleotides, i.e., a codon, each time. Twenty species of amino acids are often coded by 61 codons, so one amino acid can be coded by more than one codon and the codons coding the same amino acid are called synonymous. Intriguingly, synonymous codons' usage is often uneven: some are used more often than their alternatives in a genome. The unevenness of codon usage is termed codon usage bias (CUB). CUB is widespread, and its causes and consequences have been under intensive investigation. To facilitate the studying of CUB, in this chapter we present a protocol of estimating CUB by using the free software Codon Usage Analyzer, and apply it to Brachypodium distachyon as an example. To accomplish this protocol, the readers need some basic command-line skills. Briefly, the protocol comprises four major steps: downloading data and software, setting up computing environment, preparing data, and estimating CUB. PMID- 29039010 TI - Identification of Pseudogenes in Brachypodium distachyon Chromosomes. AB - Pseudogenes are gene copies that have lost the capability to encode a functional protein. Based on their structure, pseudogenes are classified in two types. Processed pseudogenes arise by a process of retrotranscription from a spliced mRNA and subsequent integration into the genome. Nonprocessed (or duplicated) pseudogenes are generated by genomic duplication and subsequent mutations that disable their functionality so that they cannot longer encode a functional protein. Differently from processed pseudogenes, duplicated pseudogenes are expected to conserve the exon-intron structure of their functional paralogs.Here, we describe a computational pipeline for identifying pseudogenes of both types in B. distachyon chromosomes. Our pipeline (1) identifies pseudogenes based on tBLASTn searches of B. distachyon proteins against the noncoding genomic complement of the same species, (2) identifies the most homologous pseudogenes functionally paralogous as the pseudogene paternal locus, (3) uses the intron exon structure of paternal genes to distinguish between pseudogene types.The pipeline is presented in its composing steps and tested on the Brachypodium distachyon Bd1 scaffold. PMID- 29039011 TI - TILLING in Brachypodium distachyon. AB - TILLING is a low-cost screening method that allows for identification of mutations in a gene-of-interest within a range of few base pairs. TILLING can be applied to mutant populations or to plant collections of cultivars, landraces or crop wild relatives (Eco-TILLING). The method is based on the Cel1 enzyme cleavage of mismatches in PCR products amplified with labeled primers. The cleavage can be detected due to the labeled primers by different methods including capillary electrophoresis. Here, we introduce the development of the mutant population BRACHYLIFE and present a Brachypodium TILLING protocol based on fluorescing primers for PCR, enzymatic cleavage, and detection with Applied Biosystems 3130xl Genetic Analyzer. PMID- 29039012 TI - Method for the Large-Scale Identification of phasiRNAs in Brachypodium distachyon. AB - Postranscriptional regulation has been widely shown to be regulated by several classes of small non-coding RNAs; most abundantly, microRNAs, which have been shown to be the first dominant class and has been widely characterized as post transcriptional regulators. In addition to microRNAs, triggered by miRNAs, transcripts called as PHAS (or TAS) generate abundant class of small RNAs in 21 nt manner, which is a pattern formed by DICER-LIKE 4 (DCL4) processing. Although PHAS can be identified by aligning transcripts to reported PHAS in other species, the most sensitive and accurate way to discovery them is by mapping of the smallRNAs taking into account the transcript coordinates. Here, we describe a workflow that can be used for the identification PHAS and corresponding phasiRNAs in Brachypodium distachyon using publically availabe smallRNAs datasets. PMID- 29039013 TI - Evaluation of Genome-Wide Markers and Orthologous Markers in Brachypodium distachyon. AB - Molecular markers play an important role in identifying the species variation, characterizing the genic diversity, and also linking the identified markers to trait of interest. Genome- and transcriptome-derived molecular markers have been widely used to understand the geographical diversity and have also played a major role in the development of high-density linkage maps. In the present protocol, we present a detailed protocol on bioinformatics approaches towards the whole-genome and transcriptome-assisted simple sequence repeats (SSRs) marker mining in Brachypodium distachyon and identification of orthologus SSRs and their validation in Brachypodium ecotypes. We also present a protocol for the validation of the identified markers. PMID- 29039014 TI - Protocol for Coexpression Network Construction and Stress-Responsive Expression Analysis in Brachypodium. AB - Identifying functionally coexpressed genes and modules has increasingly become important to understand the transcriptional flux and to understand large scale gene association. Application of the graph theory and combination of tools has allowed to understand the genic interaction and to understand the role of hub and non-hub proteins in plant development and its ability to cope with stress. Association genetics has also been coupled with network modules to map these key genes as e-QTLs. High throughput sequencing approaches has revolutionized the mining of the gene behavior and also the association of the genes over time series. The present protocol chapter presents a unified workflow to understand the transcriptional modules in Brachypodium distachyon using weighted coexpressed gene network analysis approach. PMID- 29039015 TI - Whole Genome DNA Methylation Analysis Using Next-Generation Sequencing (BS-seq). AB - Plant methylation is widely evident and has played crucial roles ranging in defining the epi-genome variations during abiotic and biotic stress. Variations in epi-genomic level has observed not only in the symmetrical as well as the non symmetrical sequences. Plethora of these epi-genomic variations have been widely also demonstrated at the flowering, tissue-specific, and also at developmental stages revealing a strong association of the observed epi-alleles to the physiological state. In the present chapter, epi-genomic analysis of the s has been described with functional workflow and illustrated methodology. PMID- 29039016 TI - Application of Tissue Culture and Transformation Techniques in Model Species Brachypodium distachyon. AB - Brachypodium distachyon has recently emerged as a model plant species for the grass family (Poaceae) that includes major cereal crops and forage grasses. One of the important traits of a model species is its capacity to be transformed and ease of growing both in tissue culture and in greenhouse conditions. Hence, plant transformation technology is crucial for improvements in agricultural studies, both for the study of new genes and in the production of new transgenic plant species. In this chapter, we review an efficient tissue culture and two different transformation systems for Brachypodium using most commonly preferred gene transfer techniques in plant species, microprojectile bombardment method (biolistics) and Agrobacterium-mediated transformation.In plant transformation studies, frequently used explant materials are immature embryos due to their higher transformation efficiencies and regeneration capacity. However, mature embryos are available throughout the year in contrast to immature embryos. We explain a tissue culture protocol for Brachypodium using mature embryos with the selected inbred lines from our collection. Embryogenic calluses obtained from mature embryos are used to transform Brachypodium with both plant transformation techniques that are revised according to previously studied protocols applied in the grasses, such as applying vacuum infiltration, different wounding effects, modification in inoculation and cocultivation steps or optimization of bombardment parameters. PMID- 29039017 TI - Cerebral venous sinus thrombosis complicated by seizures: a retrospective analysis of 69 cases. AB - Cerebral venous sinus thrombosis (CVST) is a rare ischemic cerebrovascular disease. The aim of this retrospective observational study was to investigate the risk factors for complication of cerebral venous sinus thrombosis by seizures and to explore the impact of such seizures on clinical outcomes. Patients with cerebral venous sinus thrombosis with or without epileptic seizures were retrospectively analyzed and compared in terms of clinical variables, causative factors, clinical presentation, and imaging data. In all, 69 patients with cerebral venous sinus thrombosis were enrolled in this study, 32 (46.38%) of whom had experienced secondary seizures. Compared with those with no seizures, significantly more patients with secondary seizures had hemiplegia (37.50 vs. 15.63%; P = 0.020), bleeding (29.40 vs. 10.81%; P = 0.047), lesions involving the frontal (31.25 vs. 10.81%; P = 0.023) and temporal lobe (43.75 vs. 8.11%; P = 0.005), and thrombosis in the superior sagittal sinus (65.63 vs. 40.54%; P = 0.036). Multivariate logistic regression analysis showed focal neurological deficits (P = 0.004, odds ratio = 5.16, 95% CI 1.99-15.76) and thrombosis of the superior sagittal sinus (P = 0.039, odds ratio = 0.13, 95% CI 0.04-0.37) were independent risk factors for secondary seizures in patients with cerebral venous sinus thrombosis. In addition, mortality rate (9.38 vs. 5.41%; P = 0.469) and 90 day excellent prognosis rate (81.25 vs. 86.47%; P = 0.793) did not differ significantly between patients with and without epileptic seizures. The presence of focal neurological deficits and thrombosis of the superior sagittal sinus are independent risk factors for secondary seizures in patients with cerebral venous sinus thrombosis, whereas mortality and 90-day prognosis have no correlation with secondary seizures. PMID- 29039019 TI - A successful treatment for a lesion of chronic total occlusion using guiding catheter lock technique. PMID- 29039018 TI - The Activity Demands and Physiological Responses Encountered During Basketball Match-Play: A Systematic Review. AB - BACKGROUND: Basketball is a popular, court-based team sport that has been extensively studied over the last decade. OBJECTIVE: The purpose of this article was to provide a systematic review regarding the activity demands and physiological responses experienced during basketball match-play according to playing period, playing position, playing level, geographical location, and sex. METHODS: An electronic database search of relevant articles published prior to 30 September 2016 was performed with PubMed, MEDLINE, ERIC, Google Scholar, SCIndex, and ScienceDirect. Studies that measured activity demands and/or physiological responses during basketball match-play were included. RESULTS: Following screening, 25 articles remained for review. During live playing time across 40 min matches, male and female basketball players travel 5-6 km at average physiological intensities above lactate threshold and 85% of maximal heart rate (HR). Temporal comparisons show a reduction in vigorous activities in the fourth quarter, likely contributing to lower blood lactate concentrations and HR responses evident towards the end of matches. Guards tend to perform a higher percentage of live playing time sprinting and performing high-intensity shuffling compared with forwards and centers. Guards also perform less standing and walking during match-play compared with forwards and centers. Variations in activity demands likely account for the higher blood lactate concentrations and HR responses observed for guards compared with forwards and centers. Furthermore, higher-level players perform a greater intermittent workload than lower-level players. Moreover, geographical differences may exist in the activity demands (distance and frequency) and physiological responses between Australian, African, and European basketball players, whereby Australian players sustain greater workloads. While activity demands and physiological data vary across playing positions, playing levels, and geographical locations, male and female players competing at the same level experience similar demands. CONCLUSION: The current results provide a detailed description of the specific requirements placed on basketball players during match-play according to playing period, playing level, playing position, geographical location, and sex, which may be useful in the development of individualized basketball training drills. PMID- 29039020 TI - Systemic Inflammation and Multimodal Biomarkers in Amnestic Mild Cognitive Impairment and Alzheimer's Disease. AB - There is increasing evidence suggesting that one of the most relevant pathophysiological features of Alzheimer's disease (AD) is neuroinflammation, which plays an important role in the production and regulation of AD-related proteins (amyloid beta (Abeta) and Tau) and exacerbates AD pathology. Neuroinflammation can also be induced by systemic influences (factors from outside the central nervous system). However, the role of systemic inflammation in AD pathophysiology is much less understood. Thus, our main objective in this study was to verify whether the presence of serum cytokines (IL-1beta, IL-6, IL 10, IL-12, and TNF-alpha) affects different AD biomarkers: Abeta1-42 and Tau protein levels, hippocampal volumes (HV), and default mode network functional connectivity (DMN FC) in healthy elderly controls, amnestic mild cognitive impairment (aMCI) patients due to AD, and mild AD patients. To accomplish this, we acquired 3-T MRI, blood, and cerebrospinal fluid (CSF) samples from 42 healthy controls, 55 aMCI patients due to AD, and 33 mild AD patients. Comparing the groups, we found that the mild AD patients presented smaller HV, disrupted DMN FC, and proportionally less IL-1beta than the controls. The aMCI patients only differed from the controls in DMN FC. In intra-group comparison, aMCI and mild AD with detectable levels of cytokines (TNF-alpha, IL-1beta, IL-10, and IL-12) had decreased DMN FC. On the other hand, patients with detectable levels of IL-10 and IL-12 presented a more favorable AD biomarkers profile (larger HV, more CSF Abeta1-42, and less p-Tau), indicating a possible protective role of these ILs. Our findings indicate a possible relationship between systemic inflammation with DMN FC disruption, hippocampal atrophy, and CSF protein levels in the subjects with mild AD and aMCI. PMID- 29039021 TI - Fifty-Hertz Magnetic Field Affects the Epigenetic Modulation of the miR-34b/c in Neuronal Cells. AB - The exposure to extremely low-frequency magnetic fields (ELF-MFs) has been associated to increased risk of neurodegenerative diseases, although the underlying molecular mechanisms are still undefined. Since epigenetic modulation has been recently encountered among the key events leading to neuronal degeneration, we here aimed at assessing if the control of gene expression mediated by miRNAs, namely miRs-34, has any roles in driving neuronal cell response to 50-Hz (1 mT) magnetic field in vitro. We demonstrate that ELF-MFs drive an early reduction of the expression level of miR-34b and miR-34c in SH SY5Y human neuroblastoma cells, as well as in mouse primary cortical neurons, by affecting the transcription of the common pri-miR-34. This modulation is not p53 dependent, but attributable to the hyper-methylation of the CpG island mapping within the miR-34b/c promoter. Incubation with N-acetyl-l-cysteine or glutathione ethyl-ester fails to restore miR-34b/c expression, suggesting that miRs-34 are not responsive to ELF-MF-induced oxidative stress. By contrast, we show that miRs 34 control reactive oxygen species production and affect mitochondrial oxidative stress triggered by ELF-MFs, likely by modulating mitochondria-related miR-34 targets identified by in silico analysis. We finally demonstrate that ELF-MFs alter the expression of the alpha-synuclein, which is specifically stimulated upon ELF-MFs exposure via both direct miR-34 targeting and oxidative stress. Altogether, our data highlight the potential of the ELF-MFs to tune redox homeostasis and epigenetic control of gene expression in vitro and shed light on the possible mechanism(s) producing detrimental effects and predisposing neurons to degeneration. PMID- 29039022 TI - Metformin Inhibits the Development of L-DOPA-Induced Dyskinesia in a Murine Model of Parkinson's Disease. AB - Metformin is a medication that is widely prescribed for the management of type 2 diabetes. In addition to its anti-diabetic uses, metformin has been proposed as a therapeutically effective drug candidate in various central nervous system disorders, including Parkinson's disease (PD). PD is characterized by severe movement defects and is commonly treated with the dopamine (DA) precursor 3,4 dihydroxyphenyl-l-alanine (L-DOPA). However, prolonged use of L-DOPA can lead to the development of L-DOPA-induced dyskinesia (LID). Here, we hypothesized that metformin co-treatment would improve LID in the 6-hydroxydopamine (6-OHDA) lesioned mouse model of PD. Metformin did not interfere the pharmacotherapeutic effects of L-DOPA in the cylinder test. Furthermore, metformin co-treatment with L-DOPA attenuated the development of LID in unilaterally 6-OHDA-lesioned mice. Metformin showed a long-lasting effect on axial, limb, and orofacial abnormal involuntary movement scores for up to 20 days after treatment initiation. Interestingly, persistent enhancement of the mammalian target of rapamycin, dopamine D1 receptor, and extracellular signaling-regulated kinase 1/2 signaling was maintained in the DA-denervated striatum during metformin treatment. Metformin globally normalized the increased glycogen synthase kinase 3beta activity induced by chronic treatment of L-DOPA in a manner associated with Akt activation in unilaterally 6-OHDA-lesioned mice. These findings suggest that metformin may have therapeutic potential for the suppression or management of L DOPA-induced motor complications in patients with PD. PMID- 29039024 TI - Comment on "Clinical and Psychosocial Outcomes of Vascularized Lymph Node Transfer for the Treatment of Upper Extremity Lymphedema After Breast Cancer Therapy". PMID- 29039023 TI - Astaxanthin Ameliorates Doxorubicin-Induced Cognitive Impairment (Chemobrain) in Experimental Rat Model: Impact on Oxidative, Inflammatory, and Apoptotic Machineries. AB - Chemobrain refers to a common sequelae experienced by 15-80% of cancer patients exposed to chemotherapeutics. The antineoplastic agent doxorubicin (DOX) has been implicated in a strenuous neurotoxicity manifested as decline in cognitive functions, most probably via cytokine-induced oxidative and nitrosative damage to brain tissues. Astaxanthin (AST), a naturally occurring carotenoid, is reputable for its outstanding antioxidant, anti-inflammatory, and antiapoptotic activities. Therefore, the aim of the current study was to investigate the potential neuroprotective and memory-enhancing effects of AST against DOX-induced behavioral and neurobiological abnormalities. Briefly, AST treatment (25 mg/kg) significantly protected against DOX-induced memory impairment. Furthermore, AST restored hippocampal histopathological architecture, halted DOX-induced oxidative and inflammatory insults, mitigated the increase in acetylcholinesterase activity, and consistently downregulated the overactive apoptotic machineries. In conclusion, these findings suggest that AST offers neuroprotection against DOX induced cognitive impairment which could be explained at least partly by its antioxidant, anti-inflammatory, and antiapoptotic effects. PMID- 29039025 TI - Cost-effectiveness Analysis of Contralateral Prophylactic Mastectomy Compared to Unilateral Mastectomy with Routine Surveillance for Unilateral, Sporadic Breast Cancer. AB - BACKGROUND: Contralateral prophylactic mastectomy (CPM) rates in younger women with unilateral breast cancer have more than doubled. Studies of cost and quality of life of the procedure remain inconclusive. METHODS: A cost-effectiveness analysis using a decision-tree model in TreeAge Pro 2015 was used to compare long term costs and quality of life following unilateral mastectomy (UM) with routine surveillance versus CPM for sporadic breast cancer in women aged 45 years. A 10 year risk period for contralateral breast cancer (CBC), reconstruction, wound complications, cost of routine surveillance, and treatment for CBC were used to estimate accrued costs. In addition, a societal perspective was used to estimate quality-adjusted life years (QALYs) following either treatment for a period of 30 years. Medical costs were obtained from the 2014 Medicare physician fee schedule and event probabilities were taken from recent literature. RESULTS: The mean cost of UM with surveillance was $14,141 and CPM was $20,319. Treatment with CPM resulted in $6178 more in costs but equivalent QALYs (17.93) compared with UM over 30 years of follow-up. Even with worst-case scenario and varying assumptions, CPM is dominated by UM in terms of cost and quality. CONCLUSIONS: From this refined model, UM with routine surveillance costs less and provides an equivalent quality of life. Patients undergoing CPM may eliminate the anxiety of routine surveillance, but they face the burden of higher lifetime medical costs. PMID- 29039026 TI - Comments to "Long-Term Survival Benefit and Potential for Cure After R1 Resection for Colorectal Liver Metastases". PMID- 29039027 TI - Reply to "Analysis of 340 Patients with Solid Pseudopapillary Tumors of the Pancreas: A Closer Look at Patients with Metastatic Disease; Methodologic Issues," by Safiri, Saeid et al. PMID- 29039028 TI - Prognostic Value of Computed Tomography: Measured Parameters of Body Composition in Primary Operable Gastrointestinal Cancers: Methodologic Issues. PMID- 29039029 TI - Analysis of 340 Patients with Solid Pseudopapillary Tumors of the Pancreas: A Closer Look at Patients with Metastatic Disease: Methodological Issues. PMID- 29039030 TI - Size and Location are the Most Important Risk Factors for Malignant Behavior in Resected Solitary Fibrous Tumors. AB - PURPOSE: While previously thought to be clinically indolent, recent data suggest significant late metastatic capacity of solitary fibrous tumors (SFTs). We define prognostic factors for recurrence and disease-specific death (DSD) in resected primary SFTs. METHODS: Resected primary SFTs from 1982 to 2015 were identified from a prospective, single institutional database. Risk factors for local (LR) and distant recurrence (DR), and DSD were assessed using competing risk analysis. RESULTS: A total of 219 patients with median follow-up of 6.1 (0.1-22) years were included. Five- and 10-year cumulative DSD was 9 and 11%, respectively. Size greater than the median 8 cm, gender, location, and complete gross resection were significantly associated with DSD (p < 0.05). Five- and 10-year cumulative risk (CR) of LR was 4 and 7%, whereas 5- and 10-year CR of DR was 13 and 16%, respectively. LR was associated with location (p = 0.02) and tumor size (p = 0.02), and DR was associated with size (p < 0.01). Histopathologic classification did not predict long-term behavior with both malignant and benign tumors demonstrating capacity for DR and associated death. Tumors in the thoracic cavity and abdomen/retroperitoneum presented the greatest risk of DR (16 and 27% 10-year CR). On multivariate analysis, size >= 8 cm (hazard ratio 2.89, p = 0.05) and tumor location in chest or abdominal/retroperitoneal cavity (hazard ratio 2.68, p = 0.01) significantly impacted DSD. CONCLUSIONS: Recurrence is highly associated with DSD and events occur as late as 16 years after initial presentation, including in patients with initially considered benign tumors. Patients with large (>= 8 cm) tumors in the chest or abdominal/retroperitoneal cavity are at greatest risk. PMID- 29039031 TI - Developmental push or environmental pull? The causes of macroevolutionary dynamics. AB - Have the large-scale evolutionary patterns illustrated by the fossil record been driven by fluctuations in environmental opportunity, by biotic factors, or by changes in the types of phenotypic variants available for evolutionary change? Since the Modern Synthesis most evolutionary biologists have maintained that microevolutionary processes carrying on over sufficient time will generate macroevolutionary patterns, with no need for other pattern-generating mechanisms such as punctuated equilibrium or species selection. This view was challenged by paleontologists in the 1970s with proposals that the differential sorting and selection of species and clades, and the effects of biotic crises such as mass extinctions, were important extensions to traditional evolutionary theory. More recently those interested in macroevolution have debated the relative importance of abiotic and biotic factors in driving macroevolutionary patterns and have introduced comparative phylogenetic methods to analyze the rates of change in taxonomic diversity. Applying Peter Godfrey-Smith's distinction between distributional explanations and explanations focusing on the origin of variation, most macroevolutionary studies have provided distributional explanations of macroevolutionary patterns. Comparative studies of developmental evolution, however, have implicated the origin of variants as a driving macroevolution force. In particular, the repatterning of gene regulatory networks provides new insights into the origins of developmental novelties. This raises the question of whether macroevolution has been pulled by the generation of environmental opportunity, or pushed by the introduction of new morphologies. The contrast between distributional and origination scenarios has implications for understanding evolutionary novelty and innovation and how macroevolutionary process may have evolved over time. PMID- 29039032 TI - CD146 is essential for PDGFRbeta-induced pericyte recruitment. PMID- 29039033 TI - Protein crystal quality oriented disulfide bond engineering. PMID- 29039034 TI - Inactivation of NSF ATPase Leads to Cathepsin B Release After Transient Cerebral Ischemia. AB - Neurons have extraordinary large cell membrane surface area, thus requiring extremely high levels of intracellular membrane-trafficking activities. Consequently, defects in the membrane-trafficking activities preferentially affect neurons. A critical molecule for controlling the membrane-trafficking activities is the N-ethylmaleimide-sensitive factor (NSF) ATPase. This study is to investigate the cascade of events of NSF ATPase inactivation, resulting in a massive buildup of late endosomes (LEs) and fatal release of cathepsin B (CTSB) after transient cerebral ischemia using the 2-vessel occlusion with hypotension (2VO+Hypotension) global brain ischemia model. Rats were subjected to 20 min of transient cerebral ischemia followed by 0.5, 4, 24, and 72 h of reperfusion. Neuronal histopathology and ultrastructure were examined by the light and electron microscopy, respectively. Western blotting and confocal microscopy were utilized for analyzing the levels, redistribution, and co-localization of Golgi apparatus and endosome or lysosome markers. Transient cerebral ischemia leads to delayed neuronal death that occurs at 48-72 h of reperfusion mainly in hippocampal CA1 and neocortical (Cx) layers 3 and 5 pyramidal neurons. During the delayed period, NSF ATPase is irreversibly trapped into inactive protein aggregates selectively in post-ischemic neurons destined to die. NSF inactivation leads to a massive buildup of Golgi fragments, transport vesicles (TVs) and late endosomes (LEs), and release of the 33 kDa LE type of CTSB, which is followed by delayed neuronal death after transient cerebral ischemia. The results support a novel hypothesis that transient cerebral ischemia leads to NSF inactivation, resulting in a cascade of events of fatal release of CTSB and delayed neuronal death after transient cerebral ischemia. PMID- 29039035 TI - Temporal dynamics of land use/land cover change and its prediction using CA-ANN model for southwestern coastal Bangladesh. AB - Change analysis of land use and land cover (LULC) is a technique to study the environmental degradation and to control the unplanned development. Analysis of the past changing trend of LULC along with modeling future LULC provides a combined opportunity to evaluate and guide the present and future land use policy. The southwest coastal region of Bangladesh, especially Assasuni Upazila of Satkhira District, is the most vulnerable to natural disasters and has faced notable changes in its LULC due to the combined effects of natural and anthropogenic causes. The objectives of this study are to illustrate the temporal dynamics of LULC change in Assasuni Upazila over the last 27 years (i.e., between 1989 and 2015) and also to predict future land use change using CA-ANN (cellular automata and artificial neural network) model for the year 2028. Temporal dynamics of LULC change was analyzed, employing supervised classification of multi-temporal Landsat images. Then, prediction of future LULC was carried out by CA-ANN model using MOLUSCE plugin of QGIS. The analysis of LULC change revealed that the LULC of Assasuni had changed notably during 1989 to 2015. "Bare lands" decreased by 21% being occupied by other land uses, especially by "shrimp farms." Shrimp farm area increased by 25.9% during this period, indicating a major occupational transformation from agriculture to shrimp aquaculture in the study area during the period under study. Reduction in "settlement" area revealed the trend of migration from the Upazila. The predicted LULC for the year 2028 showed that reduction in bare land area would continue and 1595.97 ha bare land would transform into shrimp farm during 2015 to 2028. Also, the impacts of the changing LULC on the livelihood of local people and migration status of the Upazila were analyzed from the data collected through focus group discussions and questionnaire surveys. The analysis revealed that the changing LULC and the occupational shift from paddy cultivation to shrimp farming were related to each other. Around 31.3% of the total respondents stated that at least one of their family members had migrated. Climate-driven southwestern coastal people usually migrate from the vulnerable rural areas towards the nearest relatively safe city due to adverse effects of natural disasters. To control the unplanned development and reduce the internal migration in Assasuni and other coastal areas, a comprehensive land use management plan was suggested that would accommodate the diversified uses of coastal lands and eventually lessen the threats to the life and livelihood of the local people. PMID- 29039036 TI - Performance evaluation of two Aspergillus spp. for the decolourization of reactive dyes by bioaccumulation and biosorption. AB - A biological method was adopted to decolourize textile dyes, which is an economic and eco-friendly technology for textile wastewater remediation. Two fungal strains, i.e. Aspergillus lentulus and Aspergillus fumigatus, were used to study the removal of low to high concentrations (25 to 2000 mg L-1) of reactive remazol red, reactive blue and reactive yellow dyes by biosorption and bioaccumulation. The biosorption was successful only at the lower concentrations. A. lentulus was capable of removing 67-85% of reactive dyes during bioaccumulation mode of treatment at 500 mg L-1 dye concentration with an increased biomass uptake capacity. To cope up with the high dye concentration of 2000 mg L-1, a novel combined approach was successful in case of A. lentulus, where almost 76% removal of reactive remazol red dye was observed during bioaccumulation followed by biosorption. The scanning electron microscopy also showed the accumulation of dye on the surface of fungal mycelium. The results signify the application of such robust fungal strains for the removal of high concentration of dyes in the textile wastewaters. PMID- 29039037 TI - Amaranth seeds (Amaranthus palmeri L.) as novel feedstock for biodiesel production by oleaginous yeast. AB - The potential of lipid accumulation by oleaginous yeast Cryptococcus vishniaccii grown on amaranth seed aqueous extract (AAE) media was assessed. Maximum cell biomass productivity of 104 mg/L/h, lipid productivity of 54 mg/L/h, and lipid content of 52.31% were recorded on AAE when carbon to nitrogen (C:N) ratio increased from 134 to 147 after removal of ammonia nitrogen. The lipid droplet (LD) size (2.32 +/- 0.38 MUm) was visualized by fluorescence microscopy using Nile red stain indicating maximum accumulated triacylglycerol (TAG) at C:N 147. Fatty acid methyl ester (FAME) profile obtained after transesterification of extracted lipid revealed the presence of palmitic acid (16:0), palmitoleic acid (16:1), stearic acid (18:0), oleic acid (18:1), and linoleic acid (18:2). Data showed the presence of high monounsaturated fatty acid (MUFA) content (68.17%) depicting improved winter operating conditions of biodiesel. Various quality parameters of biodiesel were evaluated and compared to the American and European biodiesel standards specifications. Based on the lipid productivity, distribution of fatty acids, and evaluated properties obtained; the lipid accumulation by C. vishniaccii utilizing amaranth seeds as substrate could serve as a feasible feedstock for biodiesel production. PMID- 29039038 TI - Assessment of GHG mitigation and CDM technology in urban transport sector of Chandigarh, India. AB - The increase in number of vehicles in metropolitan cities has resulted in increase of greenhouse gas (GHG) emissions in urban environment. In this study, emission load of GHGs (CO, N2O, CO2) from Chandigarh road transport sector has been estimated using Vehicular Air Pollution Inventory (VAPI) model, which uses emission factors prevalent in Indian cities. Contribution of 2-wheelers (2-w), 3 wheelers (3-w), cars, buses, and heavy commercial vehicles (HCVs) to CO, N2O, CO2, and total GHG emissions was calculated. Potential for GHG mitigation through clean development mechanism (CDM) in transport sector of Chandigarh under two scenarios, i.e., business as usual (BAU) and best estimate scenario (BES) using VAPI model, has been explored. A major contribution of GHG load (~ 50%) in Chandigarh was from four-wheelers until 2011; however, it shows a declining trend after 2011 until 2020. The estimated GHG emission from motor vehicles in Chandigarh has increased more than two times from 1065 Gg in 2005 to 2486 Gg by 2011 and is expected to increase to 4014 Gg by 2020 under BAU scenario. Under BES scenario, 30% of private transport has been transformed to public transport; GHG load was possibly reduced by 520 Gg. An increase of 173 Gg in GHGs load is projected from additional scenario (ADS) in Chandigarh city if all the diesel buses are transformed to CNG buses by 2020. Current study also offers potential for other cities to plan better GHG reduction strategies in transport sector to reduce their climate change impacts. PMID- 29039040 TI - Effect of amount and duration of waste green tea powder on the growth performance, carcass characteristics, blood parameters, and lipid metabolites of growing broilers. AB - This study has evaluated the possible effect of waste powder of green tea (Camellia sinensis) in feed supplementation on the growth performance, carcass characteristics, blood parameters, and lipid metabolites of growing broilers (chicks) in both the amount and duration aspects of dietary additives during the finisher phases. In the experiment, growth performance, carcass characteristics, blood parameters, and lipid metabolites of broiler chicks have been fully recorded and explored. The diet of 271 day-old Ross 308 male broiler chicks has been supplemented with 0, 0.25, 0.50, 0.75, and 1.00% (w/w) green tea powder in addition to normal feeding additives. The experiment lasted for 21 and 42 days, respectively, for each value of the green tea supplement and for separate groups of animals. Broiler feed has been supplemented with different levels of green tea powder to assess the trial effect and potential beneficial dose on selected growth performance, carcass characteristics, and blood parameters of broiler chicks. Although there are almost no differences of broiler parameters and characteristics measured from one point of view of single treatment factor (amount or duration), against the control groups during the three trial periods, the overall effect of amount and duration of feeding green tea powder is positive on growth performance, carcass characteristics, blood parameters, and lipid metabolites of growing broilers, although there are nearly no differences in some broiler parameters and characteristics. However, there are a remarkable interactive effect of amount and duration of different feeding levels of green tea powder and obvious differences observed in all the parameters and characteristics of growing broilers. Especially, usage of feeding green tea powder largely decreased the abdominal fat content and some lipid metabolites, including VLDL cholesterol, LDL cholesterol, triglycerides, and AST of broiler chicks. While additional data are still needed to evaluate and analyze the optimum supplement feed doses, it can be concluded that dietary green tea is a positive feed supplementation to reduce abdominal fat and lipid metabolites and induce antioxidants. PMID- 29039039 TI - Biochar as an adsorbent for inorganic nitrogen and phosphorus removal from water: a review. AB - Biochar is the solid product of biomass pyrolysis that can be used for carbon sequestration, soil amendment, and pollution remediation. The use of biochar as an adsorbent for the removal of water contaminants has elicited increasing interest due to the multifunctional properties of this material. The application of biochar in the adsorption of inorganic nutrients from eutrophic water has not been reviewed. This review focuses on recent research on the use of biochar for the adsorption of inorganic nitrogen (ammonium and nitrate) and phosphorus (phosphate) from water, especially for the main influence factors and mechanisms for nitrogen and phosphorus adsorption on biochar. PMID- 29039041 TI - Evaluation of antioxidant potential of essential oils of some commonly used Indian spices in in vitro models and in food supplements enriched with omega-6 and omega-3 fatty acids. AB - The aim of this study was to evaluate and compare the antioxidant potential of essential oils of some commonly used Indian spices (black pepper, cinnamon, clove, coriander and cumin) in various in vitro models and in food supplements enriched with omega-6 and omega-3 fatty acids. In vitro antioxidant potential was evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging and Fe2+ ion-chelating methods and lipid oxidation stabilisation potential was evaluated in bulk soybean oil-fish oil mixture and their oil-in-water emulsions using peroxide value (PV), p-anisidine value (p-AV) and total oxidation value as indicators of oxidation. Combination effects using DPPH radical scavenging and Briggs-Rauscher oscillating reaction methods were also evaluated. Test essential oils showed varying degrees of radical scavenging and Fe2+ ion-chelating efficacy. Clove and coriander oils showed significantly higher (P < 0.05) radical scavenging and Fe2+ ion-chelating potential over other tested essential oils as well as BHT and infinity-tocopherol. The anti-lipid peroxidative potential of test essential oils was found in the following decreasing order: clove > coriander > BHT > cinnamon > alpha-tocopherol > cumin > black pepper. Furthermore, clove and coriander oils showed synergistic antioxidant activity in combination both in DPPH radical scavenging and Briggs-Rauscher oscillating reaction methods whereas other possible combinations showed additive effects. Strong radical scavenging and Fe2+-chelating as well as anti-lipid peroxidative activities of clove and coriander oils provide evidence that clove and coriander oils may serve as a potential source of natural antioxidants for retarding lipid oxidation of food supplements enriched with omega-6 and omega-3 fatty acids. PMID- 29039042 TI - Comparative responses of diazotrophic abundance and community structure to the chemical composition of paddy soil. AB - Diazotrophy is considered as one of the most crucial and dynamic phenomena in the rice field and also a major source of nitrogen input. The objective of this study was to elucidate possible interactions between diverse and dominant diazotrophic bacterial community and organic carbon composition of the paddy soil. Our results suggest that most abundantly found diazotrophs belong to a proteobacteria group and uncultured bacterial forms. A gene abundance study clearly showed significantly higher diazotrophic abundance (P < 0.01) at Chandauli (CHN) as compared to Varanasi (VNS) and Ghazipur (GHJ) districts of Eastern Uttar Pradesh, India, with nitrogenase reductase (nifH) copy number between 1.44 * 103 and 3.34 * 103 copy g-1 soil. Fourier-transform infrared (FT-IR) spectroscopy data identified -CO-, C=O ([Formula: see text] and -NH-), [Formula: see text], and OH- as dominant organic functional groups in the paddy soil. Multivariate analysis was performed to get a clear and more accurate picture of interactions between free-living diazotrophs and abiotic soil factors. Regression analysis suggested a similar trend of distribution of different functional groups along each site. Relative abundance and diversity of diazotrophic population increased in response to FT-IR-based soil organic fractions. Maximum number of FT-IR spectral peak at sites in the Chandauli district augmented its bacterial diazotrophic diversity and abundance. Taken together, the present study sheds light on the substrate driven composition of the microbial population of selected paddy areas. PMID- 29039043 TI - Layer-dependent role of collagen recruitment during loading of the rat bladder wall. AB - In this work, we re-evaluated long-standing conjectures as to the source of the exceptionally large compliance of the bladder wall. Whereas these conjectures were based on indirect measures of loading mechanisms, in this work we take advantage of advances in bioimaging to directly assess collagen fibers and wall architecture during biaxial loading. A custom biaxial mechanical testing system compatible with multiphoton microscopy was used to directly measure the layer dependent collagen fiber recruitment in bladder tissue from 9 male Fischer rats (4 adult and 5 aged). As for other soft tissues, the bladder loading curve was exponential in shape and could be divided into toe, transition and high stress regimes. The relationship between collagen recruitment and loading curves was evaluated in the context of the inner (lamina propria) and outer (detrusor smooth muscle) layers. The large extensibility of the bladder was found to be possible due to folds in the wall (rugae) that provide a mechanism for low resistance flattening without any discernible recruitment of collagen fibers throughout the toe regime. For more extensible bladders, as the loading extended into the transition regime, a gradual coordinated recruitment of collagen fibers between the lamina propria layer and detrusor smooth muscle layer was found. A second important finding was that wall extensibility could be lost by premature recruitment of collagen in the outer wall that cut short the toe region. This change was correlated with age. This work provides, for the first time, a mechanistic understanding of the role of collagen recruitment in determining bladder extensibility and capacitance. PMID- 29039044 TI - Assessment of radon concentration and heavy metal contamination in groundwater of Udhampur district, Jammu & Kashmir, India. AB - Radon concentration was measured in water samples of 41 different locations from Udhampur district of Jammu & Kashmir, India, by using RAD7 and Smart RnDuo monitor. The variation of radon concentration in water ranged from 1.44 +/- 0.31 to 63.64 +/- 2.88 Bq L-1, with a mean value of 28.73 Bq L-1 using RAD7 and 0.64 +/- 0.28 to 52.65 +/- 2.50 Bq L-1, with a mean value of 20.30 Bq L-1 using Smart RnDuo monitor, respectively. About 17.07% of the studied water samples recorded to display elevated radon concentration above the reference range suggested by United Nation Scientific Committee on the Effects of Atomic Radiations (UNSCEAR). The mean annual effective dose of these samples was determined, and 78.95% samples were found to be within the safe limits set by World Health Organisation (WHO) and European Council (EU). The study revealed good agreement between the values obtained with two methods. Heavy metals (Zn, Cd, Fe, Cu, Ni, As, Hg, Co, Pb and Cr) were determined in water samples by microwave plasma atomic emission spectrometer, and their correlation with radon content was also analysed. PMID- 29039045 TI - Do age and linguistic background alter the audiovisual advantage when listening to speech in the presence of energetic and informational masking? AB - We examined how the type of masker presented in the background affected the extent to which visual information enhanced speech recognition, and whether the effect was dependent on or independent of age and linguistic competence. In the present study, young speakers of English as a first language (YEL1) and English as a second language (YEL2), as well as older speakers of English as a first language (OEL1), were asked to complete an audio (A) and an audiovisual (AV) speech recognition task in which they listened to anomalous target sentences presented against a background of one of three masker types (noise, babble, and competing speech). All three main effects were found to be statistically significant (group, masker type, A vs. AV presentation type). Interesting two-way interactions were found between masker type and group and between masker type and presentation type; however, no interactions were found between group (age and/or linguistic competence) and presentation type (A vs. AV). The results of this study, while they shed light on the effect of masker type on the AV advantage, suggest that age and linguistic competence have no significant effects on the extent to which a listener is able to use visual information to improve speech recognition in background noise. PMID- 29039046 TI - Reduced attentional focus and the influence on expert anticipatory perception. AB - The anticipatory memory encodings of expert and novice basketball players were examined under conditions of both full (attended condition) and reduced (unattended condition) attention (see also Gorman, Abernethy, & Farrow in Attention, Perception, & Psychophysics, 75, 835-844, 2013a). Participants completed a typical pattern recall task using dynamic playing sequences from basketball, and their responses were compared to both the original target pattern as well as to the series of patterns that occurred immediately after and immediately before the target image. The latter had not previously been employed in a pattern recall task when examining the anticipatory encoding of pattern information. Results revealed that the overall extent of the forward displacement for both the attended and unattended patterns was generally significantly greater for the experts, with the expert advantage tending to be most prominent for the attacking patterns. The novel addition of both forward and backward scenes may provide a more precise measure of the anticipatory effect, suggesting that future research in this domain should use a similar methodological design. PMID- 29039047 TI - The expression pattern of keratin 24 in tissue-engineered dermo-epidermal human skin substitutes in an in vivo model. AB - AIMS AND OBJECTIVES: The use of autologous tissue-engineered skin substitutes is a promising approach to cover large skin defects in patients. Preclinical investigation is pivotal to test and improve the quality of these bio-engineered substitutes. In the skin, the epidermis, formed mainly by keratinocytes, provides the first physical barrier protecting from the environment. Proper keratinocyte differentiation and, thus, formation of a stratified epidermis is essential for this function. Keratins, the main structural support of keratinocytes, play a vital role regarding differentiation of keratinocytes. Here, we examined the expression pattern of a recently described keratinocyte differentiation marker, namely Keratin 24, in our skin substitutes. MATERIALS AND METHODS: Human epidermal keratinocytes, melanocytes, dermal fibroblasts, palmar fibroblasts or sweat gland cells were used to prepare skin substitutes. Fibroblast-containing collagen hydrogels were prepared, and keratinocytes or sweat gland cells and melanocytes were seeded onto the hydrogels. The generated tissue-engineered dermo epidermal skin analogs were transplanted onto full-thickness skin wounds created on the back of immuno-incompetent rats. The skin substitutes were excised at different time points and histologically examined with regard to Keratin 24 expression. RESULTS: We observed the expression of Keratin 24 in keratinocytes of the upper stratum spinosum of the epidermis. In particular, we observed an intensified expression of Keratin 24 13 weeks after transplantation compared to 4 weeks after transplantation. Importantly, we noticed a markedly higher presence of Keratin 24 in more spinous layers if we used palmar fibroblasts or sweat gland cells in our skin substitutes compared non-palmar fibroblasts or epidermal keratinocytes. CONCLUSION: Our observations prove that the keratinocyte differentiation marker Keratin 24 is expressed in our dermo-epidermal skin substitutes in a normal pattern. This highlights that our bio-engineered skin analogs mature and reach homeostasis in an in vivo assay. These findings harbor favorable implications regarding future clinical application. PMID- 29039048 TI - Sclerosing and obstructive cholangiopathy in biliary atresia: mechanisms and association with biliary innate immunity. AB - Biliary atresia (BA) is histologically characterized by a progressive, sclerosing cholangitis and the obstruction of extrahepatic bile ducts. In terms of the etiology and pathogenesis of BA, several viral infections consisting of dsRNA, including Reoviridae, have been implicated. Human biliary epithelial cells (BECs) possess an innate immune system consisting of Toll-like receptors (TLRs). BECs have negative regulatory mechanisms of TLR tolerance to avoid an excessive inflammatory response to lipopolysaccharide (LPS), a TLR4 ligand; however, they lack the tolerance to poly(I:C) (a synthetic analog of viral dsRNA), a TLR3 ligand. Treatment with poly(I:C) induces the expression of the apoptosis-inducer TNF-related apoptosis-inducing ligand (TRAIL), along with the antiviral molecule IFN-beta1, and reduces the viability of BECs by enhancing apoptosis. In response, surviving BECs increase their expression of various markers, including basic FGF [an epithelial-mesenchymal transition (EMT)-inducer], S100A4 (a mesenchymal marker), and Snail (a transcriptional factor), and decrease that of epithelial markers such as CK19 and E-cadherin before undergoing EMT. Extrahepatic bile ducts in BA infants frequently show a lack of epithelial markers and an aberrant expression of vimentin, in addition to the enhancement of TRAIL and apoptosis. dsRNA viruses may directly induce apoptosis and EMT in human BECs as a result of the biliary innate immune response, supporting the notion that Reoviridae infections may be directly associated with the pathogenesis of cholangiopathies in BA. PMID- 29039049 TI - Japanese Biliary Atresia Registry. AB - The Japanese Biliary Atresia Registry (JBAR) was launched in 1989 by the Japanese Biliary Atresia Society (JBAS). JBAR employed an initial questionnaire, a questionnaire for liver transplantation, and a follow-up questionnaire. The questionnaire has been sent to the pediatric surgeons of JBAS member institutions and the hospitals in which council members of the Japanese Society of Pediatric Surgeons are working. One hundred and twenty-three hospitals have been included in JBAR between 1989 and 2015. Each patient is to be followed up for 30 years. Between 1989 and 2015, 3160 patients have been registered in JBAR. Among them, 1236 patients underwent liver transplantation. Follow-up questionnaire is also going on. 20-year overall and native-liver survival rates were 89 and 49%, respectively. The surgical outcome of BA has markedly improved owing to the co operation of Kasai portoenterostomy and liver transplantation. Japanese big database of BA is now available. PMID- 29039051 TI - Hidden morbidity of ethanol lock therapy. AB - AIMS: Long-term central venous catheters are essential in sustaining growth and development in patients with intestinal failure (IF). Several strategies have been developed to prevent and treat catheter-related blood stream infections (CRBSIs), including ethanol lock therapy. We sought to evaluate the efficacy of ethanol lock therapy in our IF population. METHOD: This is a retrospective review of IF patients treated with ethanol lock therapy at a single institution from 2006 to 2013. We evaluated the number of catheter days, rate of CRBSI per 1000 catheter days, rate of central venous catheter (CVC) thrombosis, rate of CVC breakage, total number of CVC replacements, total number of hospital admissions, and total number days in the hospital. RESULT: We identified 19 patients who underwent ethanol lock therapy for CRBSI. There was no difference in CRBSI rate prior to (5.6 per 1000 catheter days) and after (7 per 1000 catheter days) initiation of ethanol lock therapy. The mean rate of thrombosis increased from 0 to 3 per 1000 catheter days with ethanol lock therapy (p < 0.05). In addition, the CVC breakage rate increased from 0 to 13.7 per 1000 catheter days with ethanol lock therapy (p < 0.001). Hospital admissions and catheter-related ER visits increased following the initiation of ethanol lock therapy. CONCLUSIONS: Contrary to other studies, there was no difference in CRBSI rate prior to and after initiation of ethanol lock therapy. Factors in the methodology of ethanol lock therapy may influence the effectiveness of infection prevention associated with ethanol lock therapy, as well as the rate of line breakage, line thrombosis, and the need for line replacement. PMID- 29039050 TI - The protective effect of fish oil lipid emulsions on intestinal failure associated liver disease in a rat model of short-bowel syndrome. AB - PURPOSE: Pediatric patients with intestinal failure need long-term parenteral nutrition (PN), but this nutritional support causes liver dysfunction, such as intestinal failure-associated liver disease (IFALD). Several studies have shown that the lipid emulsion produced by soybean oil (SO) is associated with the occurrence of IFALD. In this study, we evaluated the effect of SO and fish oil (FO) lipid emulsion on hepatic steatosis. METHODS: Sprague-Dawley rats underwent jugular vein catheterization and were divided into three groups: sham operation with normal chow (Sham group), 80% small bowel resection (80% SBR) + TPN with SO lipid emulsion (SO group), and 80% SBR + TPN with FO lipid emulsion (FO group). All rats were euthanized and the serum biochemistry and hepatic histology analyzed. RESULTS: No significant differences in the serum liver or biliary enzymes were noted between the SO and FO groups. The pathological findings and NAFLD score in the FO group did not show steatosis and were significantly lower than in the SO group. An analysis of the fatty acids profile in the both the SO and FO groups did not indicate essential fatty acid deficiency (EFAD). CONCLUSION: FO lipid emulsion may have a protective role against steatosis of IFALD without EFAD. PMID- 29039052 TI - Effect of Bariatric Surgery on Thyroid Function in Obese Patients: a Systematic Review and Meta-Analysis. AB - We aimed to make a meta-analysis regarding the effect of bariatric surgery on thyroid function in obese patients. PubMed, EMBASE, CENTRAL, and four Chinese databases were searched for clinical studies. Data were pooled using Review Manager 5.3, and subgroup and sensitivity analyses were performed if necessary and feasible. As a result, 24 articles were included into meta-analysis. Bariatric surgery was associated with significant decrease in TSH, FT3, and T3 levels. However, FT4, T4, and rT3 levels were not significantly changed postoperatively. In addition, bariatric surgery had a favorable effect on overt and subclinical hypothyroid, with reduction of thyroid hormone requirements postoperatively. In conclusion, TSH, FT3, and T3 decrease are expected following bariatric surgery, as well as non-significant change of T4, FT4, and rT3 levels. PMID- 29039053 TI - Health Care Institutions Volume Is Significantly Associated with Postoperative Outcomes in Bariatric Surgery. AB - PURPOSE: The volume of bariatric surgery has significantly increased over the past decade with concomitant postoperative outcomes improvement. The goal of this nationwide study was to estimate the volume-outcome relationship in bariatric surgery at the hospital level. MATERIALS AND METHODS: A cross-sectional analysis of all patients who underwent bariatric surgery procedure in France from January 2011 to December 2014 was designed. Volume-outcome relationship was analyzed using generalized estimating equations. RESULTS: We identified 184,332 inpatient stays for bariatric surgical procedures performed in 606 hospitals. Health care institutions performing more than 200 bariatric cases per year were significantly associated with shorter average length of stay (p < 0.001) and less frequent need for intensive or critical care unit (p = 0.003) during the index stay in comparison with lower volume institutions. Reoperations rate increased from 3.1% [95% CI, 2.8-3.3] (n = 5627) at 1 month to 4.9% [4.6-5.2] at 3 months and 8.2% [7.8-8.7] at 6 months. The risk of reoperation after gastric bypass was 1.37 times less frequent in higher volume institutions (>= 200 inpatient stays per year, p = 0.003), while it was 1.26 times more frequent after gastric banding in higher volume institutions (p = 0.057) and was unaltered regarding sleeve gastrectomy (p = 0.819). CONCLUSION: This study showed for the first time in bariatric surgery that reoperation rate after gastric bypass or sleeve significantly increased at 3 and 6 months postoperatively. Health care institutions performing more than 200 bariatric cases per year were significantly associated with improved postoperative outcomes and less frequent need for reoperation. PMID- 29039055 TI - Treatment Patterns, Complications, and Health Care Utilization Among Endometriosis Patients Undergoing a Laparoscopy or a Hysterectomy: A Retrospective Claims Analysis. AB - INTRODUCTION: Hysterectomy and laparoscopy are common surgical procedures used for the treatment of endometriosis. This study compares outcomes for women who received either procedure within the first year post initial surgery. METHODS: The study used data from the Truven Health MarketScan claims databases from 2004 to 2013 to identify women aged 18-49 years who received an endometriosis-related laparoscopy or hysterectomy. Patients were excluded if they did not have continuous insurance coverage from 1 year before through 1 year after their endometriosis-related procedure, if they were diagnosed with uterine fibroids prior to or on the date of surgery (i.e., index date), or if they had a hysterectomy prior to the index date. The descriptive analyses examined differences between patients with an endometriosis-related laparoscopy or hysterectomy in regard to medications prescribed, complications, and hospitalizations during the immediate year post procedure. RESULTS: The final sample consisted of 24,915 women who underwent a hysterectomy and 37,308 who underwent a laparoscopy. Results revealed significant differences between the cohorts, with women who received a laparoscopy more likely to be prescribed a GnRH agonist, progestin, danazol, or an opioid analgesic in the immediate year post procedure compared to women who underwent a hysterectomy. In contrast, women who underwent a hysterectomy generally had higher complication rates. Index hospitalization rates and length of stay (LOS) were higher for women who had a hysterectomy, while post-index hospitalization rates and LOS were higher for women who had a laparoscopy. For both cohorts, post-procedure complications were associated with significantly higher hospitalization rates and longer LOS. CONCLUSION: This study indicated significantly different 1-year post-surgical outcomes for patients who underwent an endometriosis-related hysterectomy relative to a laparoscopy. Furthermore, the endometriosis patients in this analysis had a considerable risk of surgical complications, subsequent surgeries, and hospital admissions, both during and after their initial therapeutic laparoscopy or hysterectomy. FUNDING: AbbVie. PMID- 29039056 TI - Emerging Concepts on Disease-Modifying Therapies in Type 1 Diabetes. AB - PURPOSE OF REVIEW: This review seeks to characterize emerging concepts related to disease-modifying therapy in type 1 diabetes. RECENT FINDINGS: We begin by describing the new understanding that islet autoimmunity, as identified by the presence of islet autoantibodies, inevitably leads to clinical type 1 diabetes. This understanding informs the new staging paradigm for type 1 diabetes, which suggests that type 1 diabetes may be recognized and diagnosed long before symptoms develop. Although it is known that nearly all individuals with established islet autoimmunity will eventually develop symptomatic type 1 diabetes (T1D), individual characteristics such as age and biomarker profile may predict rate of disease progression and response to treatment and may therefore be used to individualize therapy. Key research supports the use of immunotherapy in TID, although a paradigm shift is necessary before immunotherapy may transition from clinical trials to clinical practice. Recent and ongoing research as it relates to these concepts is described throughout. PMID- 29039057 TI - The Effects of Low Doses of Gamma-Radiation on Growth and Membrane Activity of Pseudomonas aeruginosa GRP3 and Escherichia coli M17. AB - Microorganisms are part of the natural environments and reflect the effects of different physical factors of surrounding environment, such as gamma (gamma) radiation. This work was devoted to the study of the influence of low doses of gamma radiation with the intensity of 2.56 MUW (m2 s)-1 (absorbed doses were 3.8 mGy for the radiation of 15 min and 7.2 mGy-for 30 min) on Escherichia coli M-17 and Pseudomonas aeruginosa GRP3 wild type cells. The changes of bacterial, growth, survival, morphology, and membrane activity had been studied after gamma irradiation. Verified microbiological (specific growth rate, lag phase duration, colony-forming units (CFU) number, and light microscopy digital image analysis), biochemical (ATPase activity of bacterial membrane vesicles), and biophysical (H+ fluxes throughout cytoplasmic membrane of bacteria) methods were used for assessment of radiation implications on bacteria. It was shown that growth specific rate, lag phase duration and CFU number of these bacteria were lowered after irradiation, and average cell surface area was decreased too. Moreover ion fluxes of bacteria were changed: for P. aeruginosa they were decreased and for E. coli-increased. The N,N'-dicyclohexylcarbodiimide (DCCD) sensitive fluxes were also changed which were indicative for the membrane-associated F0F1-ATPase enzyme. ATPase activity of irradiated membrane vesicles was decreased for P. aeruginosa and stimulated for E. coli. Furthermore, DCCD sensitive ATPase activity was also changed. The results obtained suggest that these bacteria especially, P. aeruginosa are sensitive to gamma radiation and might be used for developing new monitoring methods for estimating environmental changes after gamma irradiation. PMID- 29039054 TI - Treatment Persistence and Healthcare Costs Among Patients with Rheumatoid Arthritis Changing Biologics in the USA. AB - INTRODUCTION: After a patient with rheumatoid arthritis (RA) fails tumor necrosis factor inhibitor (TNFi) treatment, clinical guidelines support either cycling to another TNFi or switching to a different mechanism of action (MOA), but payers often require TNFi cycling before they reimburse switching MOA. This study examined treatment persistence, cost, and cost per persistent patient among MOA switchers versus TNFi cyclers. METHODS: This study of Commercial and Medicare Advantage claims data from the Optum Research Database included patients with RA and at least one claim for a TNFi (adalimumab, certolizumab pegol, etanercept, golimumab, or infliximab) between January 2012 and September 2015 who changed to another TNFi or a different MOA therapy (abatacept, tocilizumab, or tofacitinib) within 1 year. The index date was the date of the change in therapy. Treatment persistence was defined as no subsequent switch or 60-day gap in therapy for 1 year post-index. RA-related costs included plan-paid and patient-paid amounts for inpatient, outpatient, and pharmacy claims. Medication costs included index and post-index costs of TNFi and different MOA therapies. RESULTS: There were 581 (38.3%) MOA switchers and 935 (61.7%) TNFi cyclers. The treatment persistence rate was significantly higher for MOA switchers versus TNFi cyclers (47.7% versus 40.2%, P = 0.004). Mean 1-year healthcare costs were significantly lower among MOA switchers versus TNFi cyclers for total RA-related costs ($37,804 versus $42,116; P < 0.001) and medication costs ($29,001 versus $34,917; P < 0.001). When costs were divided by treatment persistence, costs per persistent patient were lower among MOA switchers versus TNFi cyclers: $25,436 lower total RA related cost and $25,999 lower medication costs. CONCLUSION: MOA switching is associated with higher treatment persistence and lower healthcare costs than TNFi cycling. Reimbursement policies that require patients to cycle TNFi before switching MOA may result in suboptimal outcomes for both patients and payers. FUNDING: Sanofi and Regeneron Pharmaceuticals. PMID- 29039058 TI - Recurrent and de novo glomerulonephritis following renal transplantation: higher rates of rejection and lower graft survival. AB - PURPOSE: In this retrospective study with case-control design, we aimed to determine the clinical and pathological characteristics of post-transplant glomerulonephritis (GN), and their effects on transplant recipients. METHODS: One hundred and twenty renal transplant recipients with biopsy-proven recurrent or de novo primary GN were compared with two matched control groups including 120 transplant recipients with nonrecurrent primary GN (nonrecurrent GN group) and 120 transplant recipients with non-GN etiology (non-GN group). Primary outcome was allograft loss, and secondary outcomes were biopsy-confirmed cellular or antibody-mediated rejection. RESULTS: In recurrent/de novo GN, nonrecurrent GN and non-GN groups, 54.2% (n = 65), 16.7% (n = 20) and 8.3% (n = 10) of patients reached primary outcome after a median follow-up of 96 (IQR: 56-149) months, respectively. Allograft loss was significantly higher in recurrent/de novo GN group compared to nonrecurrent GN and non-GN groups (p < 0.001). At 10 years, allograft loss rates in recurrent/de novo GN group were 54.2% for focal segmental glomerulosclerosis, 53.2% for membranoproliferative glomerulonephritis, and 33.4% for IgA nephropathy cases. Biopsy-confirmed rejection rate was significantly higher in the recurrent/de novo GN group (n = 25, 20.8%) compared to non-GN (n = 8, 6.7%) group (p = 0.001). CONCLUSIONS: Recurrent/de novo GN is associated with higher risk of rejection and worse allograft survival. PMID- 29039059 TI - Modified tubularized incised plate urethroplasty reduces the risk of fistula and meatal stenosis for proximal hypospadias: a report of 63 cases. AB - PURPOSE: To report the feasibility of modified tubularized incised plate (TIP) urethroplasty technique for proximal hypospadias in 63 cases. METHODS: From January 2004 to March 2010, 63 patients underwent one-stage TIP urethroplasty (modified Snodgrass technique repair) using 2-3 of three covering layers (corpus spongiosum, dartos, and tunica vaginalis). The primary meatus was proximal penile, penoscrotal, scrotal, and perineal in 38, 13, 10, and 2 patients, respectively. All patients had chordee that was corrected with dorsal plication. Glanuloplasty was performed in all cases. Complications and cosmetic results were documented after 6-72 months of follow-up. RESULTS: A total of 63 boys with proximal hypospadias underwent Snodgrass hypospadias repair at a mean age of 8.5 months (range 6-54). Mean operative time was 210 +/- 35 min. Patients were followed up with 6-month intervals for up to 6 years postoperatively. After 6 years of follow-up, nine urethrocutaneous fistulae, four bleeding, four meatal stenoses, and one urethral stricture were reported. Cosmetic result was satisfactory according to parent's opinion and another surgeon. No residual chordee was observed in any cases (without artificial correction). CONCLUSION: In conclusion, this preliminary report can be estimated as an alternative technique with acceptable complication and cosmetic results for proximal hypospadias correction. PMID- 29039060 TI - The incidence of urinary tract cancers is related to preserved diuresis: a single center report. AB - PURPOSE: Residual diuresis progressively decreases with longer dialysis vintage, and higher incidence of renal and urinary tract cancers was often observed in hemodialyzed patients compared to the general population so we hypothesized that patients without preserved residual diuresis have higher risk of renal and urinary tract cancers than patients with preserved residual diuresis. METHODS: Retrospective clinical data and pathology reports were completed for 307 uremic patients undergoing chronic hemodialysis. Patients were divided into two subgroups regarding residual diuresis: the first group with residual diuresis < 500 mL, 133 of 173 (76.8%) patients from this group were completely anuric, and the second group with 134 patients with residual diuresis > 500 mL. RESULTS: Site and type-specific cancers in our population of ESRD patients were all localized in estrogen-positive receptor organs. The increased risk of all types of urinary tract cancers occurred in the whole group, men and women, when compared to general population. There were a significantly higher number of patients with all types of cancers in the group with residual diuresis < 250 mL compared to patients with residual diuresis > 500 mL. Importantly, all urinary tract cancers were present in patients with residual diuresis < 500 mL. CONCLUSION: Higher incidence of urinary tract cancers found in ESRD patients undergoing chronic hemodialysis is associated with lost residual diuresis. Residual diuresis in these patients might be considered a risk marker for future urinary tract cancers as well as already established markers. PMID- 29039061 TI - EROD activity, chromosomal damage, and oxidative stress in response to contaminants exposure in tree swallow (Tachycineta bicolor) nestlings from Great Lakes Areas of Concern. AB - Tree swallow, Tachycineta bicolor, nestlings were collected from 60 sites in the Great Lakes, which included multiple sites within 27 Areas of Concern (AOCs) and six sites not listed as AOCs from 2010 to 2014. Nestlings, approximately 12 days of-age, were evaluated for ethoxyresorufin-O-dealkylase (EROD) activity, chromosomal damage, and six measures of oxidative stress. Data on each of these biomarkers were divided into four equal numbered groups from the highest to lowest values and the groups were compared to contaminant concentrations using multivariate analysis. Contaminant concentrations, from the same nestlings, included polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), perfluorinated compounds (PFCs), and 17 elements. Alkylated polycyclic aromatic hydrocarbons (aPAHs) and parent PAHs (pPAHs) were measured in pooled nestling dietary samples. Polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and pesticides were measured in sibling eggs. Concentrations of aPAHs, pPAHs, chlordane, dieldrin, heptachlor, and PCBs, in that order, were the major contributors to the significant differences between the lowest and highest EROD activities; PFCs, PBDEs, the remaining pesticides, and all elements were of secondary importance. The four categories of chromosomal damage did not separate out well based on the contaminants measured. Concentrations of aPAHs, pPAHs, heptachlor, PCBs, chlordane, and dieldrin were the major contributors to the significant differences between the lowest and highest activities of two oxidative stress measures, total sulfhydryl (TSH) activity and protein bound sulfhydryl (PBSH) activity. The four categories of thiobarbituric acid reacting substances (TBARS), oxidized glutathione (GSSG), reduced glutathione (GSH), and the ratio of GSSG/GSH did not separate well based on the contaminants measured. PMID- 29039064 TI - Developments in Hematopoietic Stem Cell Expansion and Gene Editing Technologies. AB - Hematopoietic stem cells (HSCs) are rare cells, which housed in the adult bone marrow. They maintain all types of differentiated blood cells throughout life. Due to limited availability of HSCs for transplantation, treatment of various inherited bone marrow disorders and anemia requires the development of HSC expansion and gene editing technologies. To this end, various studies addressed the use of cytokines and growth factors for HSC expansion. Major hurdle with these studies was found to be spontaneous differentiation of HSCs into different lineages during ex vivo procedure. In addition, cost efficient approaches were needed. Thus, studies move on to the identification of small molecules and development of RNA interference technologies with potential to enhance cell cycle progression and block inhibitory signaling mechanisms during ex vivo HSC expansion as well as single cell expansion of HSCs following gene editing studies. This review aims to highlight developments in hematopoietic stem cells expansion and gene editing technologies. PMID- 29039065 TI - Conversations with a Master Cancer Educator: Joseph F. O'Donnell, M.D. PMID- 29039063 TI - Evaluation of the use of the fourth version FloTrac system in cardiac output measurement before and after cardiopulmonary bypass. AB - The FloTrac system is a system for cardiac output (CO) measurement that is less invasive than the pulmonary artery catheter (PAC). The purposes of this study were to (1) compare the level of agreement and trending abilities of CO values measured using the fourth version of the FloTrac system (CCO-FloTrac) and PAC originated continuous thermodilution (CCO-PAC) and (2) analyze the inadequate CO discriminating ability of the FloTrac system before and after cardiopulmonary bypass (CPB). Fifty patients were included. After exclusion, 32 patients undergoing cardiac surgery with CPB were analyzed. All patients were monitored with a PAC and radial artery catheter connected to the FloTrac system. CO was assessed at 10 timing points during the surgery. In the Bland-Altman analysis, the percentage errors (bias, the limits of agreement) of the CCO-FloTrac were 61.82% (0.16, - 2.15 to 2.47 L min) and 51.80% (0.48, - 1.97 to 2.94 L min) before and after CPB, respectively, compared with CCO-PAC. The concordance rates in the four-quadrant plot were 64.10 and 62.16% and the angular concordance rates (angular mean bias, the radial limits of agreement) in the polar-plot analysis were 30.00% (17.62 degrees , - 70.69 degrees to 105.93 degrees ) and 38.63% (- 10.04 degrees , - 96.73 degrees to 76.30 degrees ) before and after CPB, respectively. The area under the receiver operating characteristic curve for CCO FloTrac was 0.56, 0.52, 0.52, and 0.72 for all, >= +/- 5, >= +/- 10, and >= +/- 15% CO changes (DeltaCO) of CCO-PAC before CPB, respectively, and 0.59, 0.55, 0.49, and 0.46 for all, >= +/- 5, >= +/- 10, and >= +/- 15% DeltaCO of CCO-PAC after CPB, respectively. When CO < 4 L/min was considered inadequate, the Cohen kappa coefficient was 0.355 and 0.373 before and after CPB, respectively. The accuracy, trending ability, and inadequate CO-discriminating ability of the fourth version of the FloTrac system in CO monitoring are not statistically acceptable in cardiac surgery. PMID- 29039062 TI - Assessment of liver perfusion and function by indocyanine green in the perioperative setting and in critically ill patients. AB - Indocyanine green (ICG) is a water-soluble dye that is bound to plasma proteins when administered intravenously and nearly completely eliminated from the blood by the liver. ICG elimination depends on hepatic blood flow, hepatocellular function and biliary excretion. ICG elimination is considered as a useful dynamic test describing liver function and perfusion in the perioperative setting, i.e., in liver surgery and transplantation, as well as in critically ill patients. ICG plasma disappearance rate (ICG-PDR) which can be measured today by transcutaneous systems at the bedside is a valuable method for dynamic assessment of liver function and perfusion, and is regarded as a valuable prognostic tool in predicting survival of critically ill patients, presenting with sepsis, ARDS or acute liver failure. PMID- 29039066 TI - Pattern Classification of Enterovirus 71-Associated Hand, Foot, and Mouth Disease in Chinese Medicine: A Retrospective Study in 433 Cases. AB - OBJECTIVE: To determine whether patterns of enterovirus 71 (EV71)-associated hand, foot, and mouth disease (HFMD) were classified based on symptoms and signs, and explore whether individual characteristics were correlated with membership in particular pattern. METHODS: Symptom-based latent class analysis (LCA) was used to determine whether patterns of EV71-HFMD existed in a sample of 433 cases from a clinical data warehouse system. Logistic regression was then performed to explore whether demographic, and laboratory data were associated with pattern membership. RESULTS: LCA demonstrated a two-subgroup solution with an optimal fit, deduced according to the Bayesian Information Criterion minima. Hot pattern (59.1% of all patients) was characterized by a very high fever and high endorsement rates for classical HFMD symptoms (i.e., rash on the extremities, blisters, and oral mucosa lesions). Non-hot pattern (40.9% of all patients) was characterized by classical HFMD symptoms. The multiple logistic regression results suggest that white blood cell counts and aspartate transaminase were positively correlated with the hot pattern (adjust odds ratio=1.07, 95% confidence interval: 1.006-1.115; adjust odds ratio=1.051, 95% confidence interval: 1.019-1.084; respectively). CONCLUSIONS: LCA on reported symptoms and signs in a retrospective study allowed different subgroups with meaningful clinical correlates to be defined. These findings provide evidence for targeted prevention and treatment interventions. PMID- 29039067 TI - In Silico System Pharmacology for the Potential Bioactive Ingredients Contained in Xingnaojing Injection () and Its Material Basis for Sepsis Treatment. AB - OBJECTIVE: To elucidate the action mechanism of Xingnaojing Injection (, XNJI) for sepsis, and to target screen the potential bioactive ingredients. METHODS: An integrated protocol that combines in silico target screen (molecular docking) and database mapping was employed to find the potential inhibitors from XNJI for the sepsis-related targets and to establish the compound-target (C-T) interaction network. The XNJI's bioactive components database was investigated and the sepsis associated targets were comprehensively constructed; the 3D structure of adenosine receptor A2a and 5-lipoxygenase proteins were established and evaluated with homology modeling method; system network pharmacology for sepsis treatment was studied between the bioactive ingredients and the sepsis targets using computational biology methods to distinguish inhibitors from non inhibitors for the selected sepsis-related targets and C-T network construction. RESULTS: Multiple bioactive compounds in the XNJI were found to interact with multiple sepsis targets. The 32 bioactive ingredients were generated from XNJI in pharmacological system, and 21 potential targets were predicted to the sepsis disease; the biological activities for some potential inhibitors had been experimentally confirmed, highlighting the reliability of in silico target screen. Further integrated C-T network showed that these bioactive components together probably display synergistic action for sepsis treatment. CONCLUSIONS: The uncovered mechanism may offer a superior insight for understanding the theory of the Chinese herbal medicine for combating sepsis. Moreover, the potential inhibitors for the sepsis-related targets may provide a good source to find new lead compounds against sepsis disease. PMID- 29039068 TI - The effect of scan interval and bolus length on the quantitative accuracy of cerebral computed tomography perfusion analysis using a hollow-fiber phantom. AB - The shuttle scan technique is expected to extend scan range in cerebral computed tomography (CT) perfusion by 16- or 64-row multidetector CT (MDCT), but it may affect quantitative accuracy. This study aims to evaluate the effect of long scan interval and bolus length on the quantitative accuracy of perfusion indices using an innovative hollow-fiber phantom.We used an originally developed hollow-fiber hemodialyzer covered with polyurethane resin as a perfusion phantom. We scanned the phantom during various scan intervals (1-13 s) and bolus injection lengths (5, 10, 15, and 20 s), and evaluated cerebral blood flow (CBF), cerebral blood volume (CBV), mean transit time (MTT), and time-to-peak (TTP). We verified the influence on measured values using a two-way analysis of variance (ANOVA). All measured CBF values were smaller than the theoretical CBF values, and all the measured MTT values were larger that the theoretical MTT values (95% confidence interval). Extended scan intervals resulted in more overestimation of MTT and more underestimation of CBF (p < 0.001). CBV is not affected by the change in scan interval (p < 0.001), and a longer bolus length improved the underestimation of CBV (p < 0.001). Extended scan intervals resulted in the loss of quantitative accuracy in MTT, even with longer bolus injection length, while quantitative CBF values were underestimated and TTP values overestimated. The CBV measurement was not affected by the change in scan interval, and a longer bolus injection improved the accuracy of these measurements. PMID- 29039069 TI - Prefoveal floaters as a differential diagnosis to optic neuritis: ''mouches dormantes''. PMID- 29039070 TI - The evaluation of xenotransplantation of feline ovarian tissue vitrified by needle immersed vitrification technique into male immunodeficient mice. AB - In this study, the efficiency of the "Needle Immersed Vitrification" technique was tested on cryopreserved feline ovarian tissue. For vitrification, ovarian fragments (0.5-1.5 mm2) from each ovary were collected; the grafts were exposed to 7.5-15% ethylene glycol and 7.5-15% dimethyl sulfoxide at room temperature and stored in liquid nitrogen at least 1 week. Morphologic examinations, expression of genes such as B cell lymphoma 2, B-cell lymphoma-2-associated X protein, Bone morphogenetic protein 15, zone of polarizing activity, zona pellucida C protein and DNA (cytosine-5)-methyltransferase 1, ultrastructural analysis and viability tests were carried out from collected grafts. Light microscopy examinations revealed the percentage of morphologically normal primordial follicles in a fresh group which was significantly higher than the treatment groups (p < 0.001). Terminal deoxynucleotidyl transferase dUTP nick end labeling and anti-caspase-3 staining observed in oocytes, follicle cells, interstitial tissue showed higher rates of apoptosis for post-vitrification and -transplantation groups than freshly grafted ovarian tissues. Furthermore, we observed significant downregulation of zone of polarizing activity and zona pellucida C protein gene expression in vitrified ovarian tissue grafts than in the fresh grafts (p < 0.05). In conclusion, we suggest that the needle immersed vitrification method is a convenient, cheap, and feasible vitrification method for cat ovarian tissues. However, further studies need to be performed to determine more optimal vitrification solutions and equilibration times for the needle immersed vitrification method in order to adapt it for cat ovaries. PMID- 29039071 TI - Potential Applications of Gliclazide in Treating Type 1 Diabetes Mellitus: Formulation with Bile Acids and Probiotics. AB - A major advancement in therapy of type 1 diabetes mellitus (T1DM) is the discovery of new treatment which avoids and even replaces the absolute requirement for injected insulin. The need for multiple drug therapy of comorbidities associated with T1DM increases demand for developing novel therapeutic alternatives with new mechanisms of actions. Compared to other sulphonylurea drugs used in the treatment of type 2 diabetes mellitus, gliclazide exhibits a pleiotropic action outside pancreatic beta cells, the so-called extrapancreatic effects, such as antiinflammatory and cellular protective effects, which might be beneficial in the treatment of T1DM. Results from in vivo experiments confirmed the positive effects of gliclazide in T1DM that are even more pronounced when combined with other hypoglycaemic agents such as probiotics and bile acids. Even though the exact mechanism of interaction at the molecular level is still unknown, there is a clear synergistic effect between gliclazide, bile acids and probiotics illustrated by the reduction of blood glucose levels and improvement of diabetic complications. Therefore, the manipulation of bile acid pool and intestinal microbiota composition in combination with old drug gliclazide could be a novel therapeutic approach for patients with T1DM. PMID- 29039072 TI - First-line bolus 5-fluorouracil plus leucovorin for peritoneally disseminated gastric cancer with massive ascites or inadequate oral intake. AB - BACKGROUND: There are few chemotherapeutic options for advanced gastric cancer with severe disseminated peritoneal metastases, which are usually accompanied by ascites. Bolus 5-fluorouracil (5-FU) plus leucovorin therapy has been widely used against gastrointestinal malignancies, with resulting mild toxicities. METHODS: We retrospectively analyzed the efficacy and safety of first-line chemotherapy with bolus 5-FU plus l-leucovorin in 30 advanced gastric cancer patients who had massive ascites and/or inadequate oral intake. This therapy consisted of 5-FU (600 mg/m2 IV bolus) plus l-leucovorin (250 mg/m2 2-h IV infusion) administered on a 6 weeks on/2 weeks off schedule. RESULTS: Among all the patients, 26 (87%) were unable to eat and 12 (40%) had massive ascites. Major grade 3 or 4 adverse events were neutropenia (17%), nausea (7%), fatigue (7%), and diarrhea (3%); no treatment-related deaths were observed. The median progression-free survival and overall survival (OS) were 2.4 months [95% confidence interval (CI), 0.6-4.1] and 6.0 months (95% CI, 2.1-9.9), respectively. Objective improvement in oral intake was seen in 7 patients (27%). Improvement in ascites occurred in 9 (39%) of 23 patients. In multivariate analyses, the presence of both massive ascites and inadequate oral intake was significantly associated with worse OS (hazard ratio, 5.25; 95% CI, 1.61-17.1). The median OS for patients (n = 22) without this factor was 7.2 months (95% CI, 4.2-10.3). CONCLUSION: Our study suggests that bolus 5-FU plus l-leucovorin therapy is feasible and has clinical activity as palliative therapy in patients with severe peritoneal metastases from gastric cancer. PMID- 29039073 TI - A double-blind randomized phase II dose-finding study of olanzapine 10 mg or 5 mg for the prophylaxis of emesis induced by highly emetogenic cisplatin-based chemotherapy. AB - PURPOSE: The aim of this phase II study was to evaluate the efficacy and safety of two doses (10 and 5 mg) of olanzapine in combination with standard antiemetic treatment (aprepitant, palonosetron, and dexamethasone) for patients receiving highly emetogenic chemotherapy (HEC). METHODS: A multi-institutional, double blind, randomized phase II, dose-finding study of olanzapine was performed in patients with a malignant solid tumor who were receiving HEC with cisplatin (>= 50 mg/m2). Patients were randomly assigned either olanzapine 10 or 5 mg orally on days 1-4, combined with standard antiemetic treatment. The primary endpoint was a complete response (CR; no emesis and no use of rescue medications) in the delayed phase (24-120 h after the start of cisplatin treatment). RESULTS: 153 patients were randomized to the 10 mg group (n = 76) or the 5 mg group (n = 77). The CR rate in the delayed phase was 77.6% (80% CI: 70.3-83.8, P = 0.01) in the 10 mg group and 85.7% (80% CI: 79.2-90.7, P < 0.001) in the 5 mg group (P value for H 0: complete response rate <= 65%). The most common adverse event was somnolence, which had an incidence of 53.3 and 45.5% in the 10 and 5 mg olanzapine groups, respectively. CONCLUSIONS: Both doses of 10 and 5 mg olanzapine provided a significant improvement in delayed emesis. A dose of 5 mg olanzapine was determined as the recommended dose for a further phase III study based on higher CR and lower somnolence rates. CLINICAL TRIAL INFORMATION: UMIN000014214. PMID- 29039074 TI - The usefulness of stereo-electroencephalography (SEEG) in the surgical management of focal epilepsy associated with "hidden" temporal pole encephalocele: a case report and literature review. AB - The authors report a case of 18-year-old woman with partial complex seizures compatible with temporal epilepsy by semiology. Due to medical refractoriness, she was referred to pre-surgical evaluation. Initially, MRI showed no significant structural abnormality and superficial scalp EEG demonstrated epileptiform activity in the frontotemporal areas. Due to the lack of clear MRI abnormalities and the potential involvement of dominant mesial temporal structures by seizure semiology and non-invasive data, extra-operative invasive evaluation using stereo electroencephalography (SEEG) methodology was indicated. Invasive monitoring demonstrated seizure onset in the left temporal pole with early spread to ipsilateral amygdala. Surgical treatment resulted in resection of the temporal pole and amygdala, with preservation of the remaining mesial temporal lobe structures. Intraoperatively, it was observed that multiple dural defects in the anterior middle temporal fossa with invagination of adjacent temporal pole parenchyma are compatible with temporal encephalocele. Patient remains seizure free since surgery (12 months follow-up period) with preservation of neuropsychological functions. Although temporal pole resection plus amygdalohippocampectomy has been described as an adequate surgical approach in temporal encephalocele cases, we demonstrated the usefulness of the SEEG methodology in minimizing the volume of temporal lobe resection without compromising seizure and neuropsychological outcomes. The optimal results in this case and the review of the literature may suggest that in medically refractory epilepsies caused by temporal pole encephaloceles, preservation of the temporal lobe mesial structures should be attempted. PMID- 29039075 TI - Venous thromboembolism and intracranial hemorrhage after craniotomy for primary malignant brain tumors: a National Surgical Quality Improvement Program analysis. AB - Venous thromboembolism (VTE), including deep venous thrombosis (DVT) and pulmonary embolism (PE), frequently complicates the postoperative course of primary malignant brain tumor patients. Thromboprophylactic anticoagulation is commonly used to prevent VTE at the risk of intracranial hemorrhage (ICH). We extracted all patients who underwent craniotomy for a primary malignant brain tumor from the National Surgical Quality Improvement Program (NSQIP) registry (2005-2015) to perform a time-to-event analysis and identify relevant predictors of DVT, PE, and ICH within 30 days after surgery. Among the 7376 identified patients, the complication rates were 2.6, 1.5, and 1.3% for DVT, PE, and ICH, respectively. VTE was the second-most common major complication and third-most common reason for readmission. ICH was the most common reason for reoperation. The increased risk of VTE extends beyond the period of hospitalization, especially for PE, whereas ICH occurred predominantly within the first days after surgery. Older age and higher BMI were overall predictors of VTE. Dependent functional status and longer operative times were predictive for VTE during hospitalization, but not for post-discharge events. Admission two or more days before surgery was predictive for DVT, but not for PE. Preoperative steroid usage and male gender were predictive for post-discharge DVT and PE, respectively. ICH was associated with various comorbidities and longer operative times. This multicenter study demonstrates distinct critical time periods for the development of thrombotic and hemorrhagic events after craniotomy. Furthermore, the VTE risk profile depends on the type of VTE (DVT vs. PE) and clinical setting (hospitalized vs. post-discharge patients). PMID- 29039076 TI - Evaluation of the Diversity of Probiotic Bacillus, Clostridium, and Bifidobacterium Using the Illumina-Based Sequencing Method. AB - Bacterial species of Bacillus, Lactobacillus, and Bifidobacterium in the intestinal tract have been used as probiotics. Selections for probiotic candidates by the culture-based approaches are time-consuming and labor consuming. The aim of this study was to develop a new method based on sequencing strategies to select the probiotic Bacillus, Lactobacillus, and Bifidobacterium. The Illumina-based sequencing strategies with different specific primers for Bacillus, Clostridium, and Bifidobacterium were applied to analyze diversity of the genera in goat feces. The average number of different Bacillus, Clostridium, and Bifidobacterium OTUs (operational taxonomic units) at the 97% similarity level ranged from 1922 to 63172. The coverage index values of Bacillus, Clostridium, and Bifidobacterium calculated from the bacterial OTUs were 0.89, 0.99, and 1.00, respectively. The most genera of Bacillus (37.9%), Clostridium (53%), and Bifidobacterium (99%) were detected in goat feces by the Illumina based sequencing with the specific primers of the genera, respectively. Higher phylogenetic resolutions of the genera in goat feces were successfully established. The results suggest that the selection for probiotic Bacillus, Clostridium, and Bifidobacterium based on the Illumina sequencing with their specific primers is reliable and feasible, and the core Bacillus, Clostridium, and Bifidobacterium species of healthy goats possess the potentials as probiotic microbial consortia. PMID- 29039077 TI - Chronic light exposure alters serotonergic and orexinergic systems in the rat brain and reverses maternal separation-induced increase in orexin receptors in the prefrontal cortex. AB - Maternal separation (MS) is a well-established rodent model of depression. Chronic constant light (CCL) treatment during adolescence has been shown to reverse the depression-like behaviour induced by MS. We aimed to further delineate the antidepressant effect of light by investigating the involvement of the dopaminergic, serotonergic and orexinergic systems. MS was used to induce changes in adult male Sprague-Dawley rats, some of whom were also treated with CCL for 3 weeks during adolescence. At P80, rats were decapitated and brain tissue collected for analysis of glutamate- and potassium-stimulated dopamine release in the nucleus accumbens (NAc) using an in vitro superfusion technique. Enzyme-linked immunosorbent assays were employed to measure 5-hydroxytryptamine (5-HT) levels in the hypothalamus and prefrontal cortex (PFC). Western blotting was used to measure orexin receptor 1 (OXR-1) and 2 (OXR-2) in the PFC. MS did not affect 5-HT levels in these rats. However, CCL increased hypothalamic 5-HT and reduced 5-HT levels in the PFC. CCL had opposite effects on OXR levels in the PFC of maternally separated and non-separated rats. MS increased OXR-1 and OXR-2 levels in the PFC, an effect that was normalized by CCL treatment. MS reduced glutamate-stimulated dopamine release in the NAc, an effect that was not reversed by CCL. The present results suggest that CCL treatment affects 5-HT and orexinergic systems in the MS model while not affecting the MS-induced decrease in dopamine release in the NAc. The reversal of changes in the orexinergic system may be of particular relevance to the antidepressant effect of CCL in depression. PMID- 29039078 TI - The neuroprotective effects of hydro-alcoholic extract of olive (Olea europaea L.) leaf on rotenone-induced Parkinson's disease in rat. AB - Parkinson's disease (PD) is an age-related disease in which dopaminergic neurons in the nigrostriatal pathway are destroyed, resulting in movement and behavioral problems. Oxidative stress and the generation of reactive oxygen species play key roles in neurodegenerative diseases, such as PD. Rotenone (ROT) is a common pesticide that induces oxidative stress. Olive leaves extract (OLE) has antioxidant and neuroprotective effects. Thus, the aim of this study was to investigate the neuroprotective effects of OLE on ROT-induced oxidative stress in the midbrain of a rat model of PD. Ninety-six Wistar rats were randomly divided into the following 6 groups (n = 16 rats/group): Control, Sham, ROT, and 3 ROT + OLE (75, 150, and 300 mg/kg/daily) groups. ROT (2.5 mg/kg/48 h) was injected subcutaneously, and vehicle or OLE was orally administered for 30 days. The animals were then sacrificed, and their brains were removed. Biochemical measures, including the levels of catalase (CAT), glutathione peroxidase (GPx), superoxide dismutase (SOD), and malondialdehyde (MDA), and the number of tyrosine hydroxylase (TH)-positive neurons were determined, and behavioral (rotarod and hanging) tests were conducted. The balance and muscle strength of the OLE (150 and 300 mg/kg)-treated groups were significantly improved. Treatment with OLE prevented the increases in the levels of MDA, significantly improved the SOD, CAT, and GPx levels in the midbrain, and prevented the depletion of the TH positive neurons. These findings suggested that OLE has neuroprotective properties and that it might be useful for preventing the death of dopaminergic neurons in patients with PD. PMID- 29039080 TI - Preface. PMID- 29039079 TI - A long-term survivor of hilar cholangiocarcinoma with resection of recurrent peritoneal dissemination after R0 surgery: a case report. AB - BACKGROUND: Although hilar cholangiocarcinoma (HCCA) has a very poor prognosis, there are cases in which long-term survival is rarely obtained by multidisciplinary treatment. CASE PRESENTATION: A 61-year-old man diagnosed with HCCA was referred to our hospital. We performed an extended left hemi-hepatectomy and caudate lobectomy with extrahepatic bile duct resection. The tumor stage was T2aN0M0, stage II, based on the TNM classification, seventh edition. R0 resection was successfully performed. Adjuvant chemotherapy was not administered. After 38 months, computed tomography revealed peritoneal dissemination. The patient received chemotherapy with tegafur-gimeracil-oteracil-potassium (S-1) and gemcitabine. The peritoneal dissemination was successfully controlled for more than 50 months. During the treatment, levels of CEA and CA19-9 kept rising slowly, which was followed by bowel obstruction due to peritoneal dissemination of HCCA. The patient underwent resection of transverse colon with tumor nodules, and the tumor was pathologically diagnosed as metastasis of HCCA. Tumor markers decreased to normal levels, and the patient has been free from tumor relapse for 6 months. CONCLUSIONS: We here report a rare case of HCCA patient with recurrent peritoneal dissemination 3 years after R0 surgery which was sensitive to chemotherapy. The patient successfully received resection of peritoneal dissemination 50 months after the induction of chemotherapy and survived for 10 years. PMID- 29039081 TI - Proteasome dysregulation in human cancer: implications for clinical therapies. AB - Cancer cells show heightened dependency on the proteasome for their survival, growth, and spread. Proteasome dysregulation is therefore commonly selected in favor of the development of many types of cancer. The vast abnormalities in a cancer cell, on top of the complexity of the proteasome itself, have enabled a plethora of mechanisms gearing the proteasome to the oncogenic process. Here, we use selected examples to highlight some general mechanisms underlying proteasome dysregulation in cancer, including copy number variations, transcriptional control, epigenetic regulation, and post-translational modifications. Research in this field has greatly advanced our understanding of proteasome regulation and will shed new light on proteasome-based combination therapies for cancer treatment. PMID- 29039083 TI - Myristoylated alanine-rich C kinase substrate (MARCKS): a multirole signaling protein in cancers. AB - Emerging evidence implicates myristoylated alanine-rich C-kinase substrate (MARCKS), a major substrate of protein kinase C (PKC), in a critical role for cancer development and progression. MARCKS is tethered to the plasma membrane but can shuttle between the cytosol and plasma membrane via the myristoyl electrostatic switch. Phosphorylation of MARCKS by PKC leads to its translocation from the plasma membrane to the cytosol where it functions in actin cytoskeletal remodeling, Ca2+ signaling through binding to calmodulin, and regulation of exocytic vesicle release in secretory cells such as neurons and airway goblet cells. Although the contribution of MARCKS to various cellular processes has been extensively studied, its roles in neoplastic disease have been conflicting. This review highlights the molecular and functional differences of MARCKS that exist between normal and tumor cells. We also discuss the recent advances in the potential roles of MARCKS in tumorigenesis, metastasis, and resistance to anti cancer therapies, with a focus on addressing the inconsistent results regarding the function of MARCKS as a promoter or inhibitor of oncogenesis. PMID- 29039084 TI - Use of coronary artery calcium scanning as a triage for invasive coronary angiography. PMID- 29039085 TI - Safer stress tests for myocardial perfusion imaging. PMID- 29039086 TI - And in the end.... PMID- 29039087 TI - Can FDG-PET imaging play a role in guiding indications to endovascular treatments in patients presenting acute aortic syndromes? PMID- 29039082 TI - Metal-based proteasomal deubiquitinase inhibitors as potential anticancer agents. AB - Deubiquitinases (DUBs) play an important role in protein quality control in eukaryotic cells due to their ability to specifically remove ubiquitin from substrate proteins. Therefore, recent findings have focused on the relevance of DUBs to cancer development, and pharmacological intervention on these enzymes has become a promising strategy for cancer therapy. In particular, several DUBs are physically and/or functionally associated with the proteasome and are attractive targets for the development of novel anticancer drugs. The successful clinical application of cisplatin in cancer treatment has prompted researchers to develop various metal-based anticancer agents with new properties. Recently, we have reported that several metal-based drugs, such as the antirheumatic gold agent auranofin (AF), the antifouling paint biocides copper pyrithione (CuPT) and zinc pyrithione (ZnPT), and also our two synthesized complexes platinum pyrithione (PtPT) and nickel pyrithione (NiPT), can target the proteasomal DUBs UCHL5 and USP14. In this review, we summarize the recently reported small molecule inhibitors of proteasomal DUBs, with a focus on discussion of the unique nature of metal-based proteasomal DUB inhibitors and their anticancer activity. PMID- 29039088 TI - Evaluating Nanomedicines: Obstacles and Advancements. AB - Continued advancements in nanotechnology are expanding the boundaries of medical research, most notably as drug delivery agents for treatment against cancer. Drug delivery with nanotechnology can offer greater control over the biodistribution of therapeutic agents to improve the therapeutic index. In the last 20 years, a number of nanomedicines have transitioned into the clinic. As nanomedicines evolve, techniques to properly evaluate their safety and efficacy must also evolve. Characterization methods for nano-based materials must be adapted to the demands of nanomedicine developers and regulators. This second edition book provides updated characterization protocols designed to address the clinical potential of nanomedicines during their preclinical development. In this chapter, the characterization challenges of nanoparticles intended for drug delivery will be discussed, along with examples of advancements and improvements in nanomedicine characterization. PMID- 29039089 TI - Detection of Bacterial Contamination in Nanoparticle Formulations by Agar Plate Test. AB - Bacterial contamination can confound the results of in vitro and in vivo preclinical tests. This protocol describes a procedure for detection of microbial contamination in nanotechnology-based formulations. Nanoparticle samples and controls are spread on the surface of agar and growth of bacterial colonies is monitored after 72 h of incubation. The intended purpose of this assay is to avoid introduction of microbial contamination into in vitro cell cultures and in vivo animal studies utilizing the test nanomaterial. This assay is not intended to certify the material as sterile. PMID- 29039090 TI - Considerations and Some Practical Solutions to Overcome Nanoparticle Interference with LAL Assays and to Avoid Endotoxin Contamination in Nanoformulations. AB - Monitoring endotoxin contamination in drugs and medical devices is required to avoid pyrogenic response and septic shock in patients receiving these products. Endotoxin contamination of engineered nanomaterials and nanotechnology-based medical products represents a significant translational hurdle. Nanoparticles often interfere with an in vitro Limulus Amebocyte Lysate (LAL) assay commonly used in the pharmaceutical industry for the detection and quantification of endotoxin. Such interference challenges the preclinical development of nanotechnology-formulated drugs and medical devices containing engineered nanomaterials. Protocols for analysis of nanoparticles using LAL assays have been reported before. Here, we discuss considerations for selecting an LAL format and describe a few experimental approaches for overcoming nanoparticle interference with the LAL assays to obtain more accurate estimation of endotoxin contamination in nanotechnology-based products. The discussed approaches do not solve all types of nanoparticle interference with the LAL assays but could be used as a starting point to address the problem. This chapter also describes approaches to prevent endotoxin contamination in nanotechnology-formulated products. PMID- 29039091 TI - Elemental Analysis in Biological Matrices Using ICP-MS. AB - The increasing exploration of metallic nanoparticles for use as cancer therapeutic agents necessitates a sensitive technique to track the clearance and distribution of the material once introduced into a living system. Inductively coupled plasma mass spectrometry (ICP-MS) provides a sensitive and selective tool for tracking the distribution of metal components from these nanotherapeutics. This chapter presents a standardized method for processing biological matrices, ensuring complete homogenization of tissues, and outlines the preparation of appropriate standards and controls. The method described herein utilized gold nanoparticle-treated samples; however, the method can easily be applied to the analysis of other metals. PMID- 29039092 TI - PEG Quantitation Using Reversed-Phase High-Performance Liquid Chromatography and Charged Aerosol Detection. AB - This chapter describes a method for the quantitation of polyethylene glycol (PEG) in PEGylated colloidal gold nanoparticles using a reversed-phase high-performance liquid chromatography (RP-HPLC) with charged aerosol detection. The method can be used to calculate the total PEG on the nanoparticle, as well as the bound and free unbound PEG fractions after a simple centrifugation step. This is a significant distinction as the bound PEG fraction affects biocompatibility, circulation time, and overall nanoparticle efficacy. PEG quantitation can be achieved through two methods, one involving the dissolution of colloidal gold nanoparticles by potassium cyanide (KCN) and the other by displacement of PEG by dithiothreitol (DTT). The methods outlined herein were applied to 30 nm colloidal gold grafted with 20 kDa PEG, but they can be easily adapted to any size colloidal gold nanoparticle and PEG chain length. PMID- 29039093 TI - Quantitation of Surface Coating on Nanoparticles Using Thermogravimetric Analysis. AB - Nanoparticles are critical components in nanomedicine and nanotherapeutic applications. Some nanoparticles, such as metallic nanoparticles, consist of a surface coating or surface modification to aid in its dispersion and stability. This surface coating may affect the behavior of nanoparticles in a biological environment, thus it is important to measure. Thermogravimetric analysis (TGA) can be used to determine the amount of coating on the surface of the nanoparticle. TGA experiments run under inert atmosphere can also be used to determine residual metal content present in the sample. In this chapter, the TGA technique and experimental method are described. PMID- 29039094 TI - Immunoelectron Microscopy for Visualization of Nanoparticles. AB - Immunoelectron microscopy (IEM) on a solid phase such as a carbon film is a fast and powerful way to detect and visualize surface antigens on nanoparticles by using a transmission electron microscope (TEM). Nanoparticles, in particular ones for medical applications, are often modified on the surface with soft materials to make them more soluble, less toxic, or targetable to cancerous tumors. Imaging the soft material on the surface of solid nanoparticles by electron microscopy is often a challenge. IEM can overcome this issue in cases where antibodies to any of the surface material are available, which is often the case for proteins, but also for commonly used materials such as polyethylene glycol (PEG). This effective procedure has been used traditionally for viruses and macromolecules, but it can be directly applied to nanoparticles. PMID- 29039095 TI - Imaging of Liposomes by Transmission Electron Microscopy. AB - TEM is an important method for the characterization of size and shape of nanoparticles as it can directly visualize single particles and even their inner architecture. Imaging of metal particles in the electron microscope is quite straightforward due to their high density and stable structure, but the structure of soft material nanoparticles, such as liposomes, needs to be preserved for the electron microscope. The best method to visualize liposomes close to their native structure is cryo-electron microscopy, where thin films of suspensions are plunge frozen to create vitrified ice films that can be imaged directly in the electron microscope under liquid nitrogen temperature. Although subject to artifacts, negative staining TEM can also be a useful method to image liposomes, as it is faster and simpler than cryo-EM, and requires less advanced equipment. PMID- 29039096 TI - Updated Method for In Vitro Analysis of Nanoparticle Hemolytic Properties. AB - Hemolysis is damage to red blood cells (RBCs), which results in the release of the iron-containing protein hemoglobin into plasma. An in vitro assay was developed and described earlier for the analysis of nanoparticle hemolytic properties. Herein, we present a revised version of the original protocol. In this protocol, analyte nanoparticles and controls are incubated in blood. Undamaged RBCs are removed by centrifugation and hemoglobin, released by the damaged erythrocytes, is converted to cyanmethemoglobin by incubation with Drabkin's reagent. The amount of cyanmethemoglobin in the supernatant is measured by spectrophotometry. This measured absorbance is compared to a standard curve to determine the concentration of hemoglobin in the supernatant. The measured hemoglobin concentration is then compared to the total hemoglobin concentration to obtain the percentage of nanoparticle-induced hemolysis. The revision includes updated details about nanoparticle sample preparation, selection of nanoparticle concentration for the in vitro study, updated details about assay controls and case studies about nanoparticle interference with the in vitro hemolysis assay. PMID- 29039097 TI - In Vitro Assessment of Nanoparticle Effects on Blood Coagulation. AB - Blood clotting is a complex process which involves both cellular and biochemical components. The key cellular players in the blood clotting process are thrombocytes or platelets. Other cells, including leukocytes and endothelial cells, contribute to clotting by expressing the so-called pro-coagulant activity (PCA) complex on their surface. The biochemical component of blood clotting is represented by the plasma coagulation cascade, which includes plasma proteins also known as coagulation factors. The coordinated interaction between platelets, leukocytes, endothelial cells, and plasma coagulation factors is necessary for maintaining hemostasis and for preventing excessive bleeding. Undesirable activation of all or some of these components may lead to pathological blood coagulation and life-threatening conditions such as consumptive coagulopathy or disseminated intravascular coagulation (DIC). In contrast, unintended inhibition of the coagulation pathways may lead to hemorrhage. Thrombogenicity is the property of a test material to induce blood coagulation by affecting one or more elements of the clotting process. Anticoagulant activity refers to the property of a test material to inhibit coagulation. The tendency to cause platelet aggregation, perturb plasma coagulation, and induce leukocyte PCA can serve as an in vitro measure of a nanomaterial's likelihood to be pro- or anticoagulant in vivo. This chapter describes three procedures for in vitro analyses of platelet aggregation, plasma coagulation time, and activation of leukocyte PCA. Platelet aggregation and plasma coagulation procedures have been described earlier. The revision here includes updated details about nanoparticle sample preparation, selection of nanoparticle concentration for the in vitro study, and updated details about assay controls. The chapter is expanded to describe a method for the leukocyte PCA analysis and case studies demonstrating the performance of these in vitro assays. PMID- 29039098 TI - In Vitro Analysis of Nanoparticle Effects on the Zymosan Uptake by Phagocytic Cells. AB - This chapter provides a protocol for analysis of nanoparticle effects on the function of phagocytic cells. The protocol relies on luminol chemiluminescence to detect zymosan uptake. Zymosan is an yeast particle which is typically eliminated by phagocytic cells via the complement receptor pathway. The luminol, co internalized with zymosan, is processed inside the phagosome to generate a chemiluminescent signal. If a test nanoparticle affects the phagocytic function of the cell, the amount of phagocytosed zymosan and, proportionally, the level of generated chemiluminescent signal change. Comparing the zymosan uptake of untreated cells with that of cells exposed to a nanoparticle provides information about the nanoparticle's effects on the normal phagocytic function. This method has been described previously and is presented herein with several changes. The revised method includes details about nanoparticle concentration selection, updated experimental procedure, and examples of the method performance. PMID- 29039099 TI - Assessing NLRP3 Inflammasome Activation by Nanoparticles. AB - NLRP3 inflammasome activation is one of the initial steps in an inflammatory cascade against pathogen/danger-associated molecular patterns (PAMPs/DAMPs), such as those arising from environmental toxins or nanoparticles, and is essential for innate immune response. NLRP3 inflammasome activation in cells can lead to the release of IL-1beta cytokine via caspase-1, which is required for inflammatory induced programmed cell death (pyroptosis). Nanoparticles are commonly used as vaccine adjuvants and drug delivery vehicles to improve the efficacy and reduce the toxicity of chemotherapeutic agents. Several studies indicate that different nanoparticles (e.g., liposomes, polymer-based nanoparticles) can induce NLRP3 inflammasome activation. Generation of a pro-inflammatory response is beneficial for vaccine delivery to provide adaptive immunity, a necessary step for successful vaccination. However, similar immune responses for intravenously injected, drug-containing nanoparticles can result in immunotoxicity (e.g., silica nanoparticles). Evaluation of NLRP3-mediated inflammasome activation by nanoparticles may predict pro-inflammatory responses in order to determine if these effects may be mitigated for drug delivery or optimized for vaccine development. In this protocol, we outline steps to monitor the release of IL 1beta using PMA-primed THP-1 cells, a human monocytic leukemia cell line, as a model system. IL-1beta release is used as a marker of NLRP3 inflammasome activation. PMID- 29039100 TI - Analysis of Complement Activation by Nanoparticles. AB - The complement system is a group of proteins, which function in plasma to assist the innate immunity in rapid clearance of pathogens. The complement system also contributes to coordination of the adaptive immune response. Complement Activation Related Pseudo Allergy or CARPA is a life-threatening condition commonly reported with certain types of drugs and nanotechnology-based combination products. While CARPA symptoms are similar to that of anaphylaxis, the mechanism behind this pathology does not involve IgE and is mediated by the complement system. In vitro assays using serum or plasma derived from healthy donor volunteers correlate with the in vivo complement-mediated reactions, and therefore are helpful in understanding the propensity of a given drug formulation to cause CARPA in patients. In the first edition of this book, we have described an in vitro method for qualitative assessment of the complement activation by nanomaterials using western blotting. Herein, we present a similar method utilizing enzyme-linked immunoassay for quantitative analysis of the complement activation, and we compare the performance of this approach to that of the qualitative western blotting technique. The revised chapter also includes new details about nanoparticle sample preparation. PMID- 29039101 TI - Methods for Analysis of Nanoparticle Immunosuppressive Properties In Vitro and In Vivo. AB - Adverse drug effects on the immune system function represent a significant concern in the pharmaceutical industry, because 10-20% of the drug withdrawal from the market is accounted to immunotoxicity. Immunosuppression is one such adverse effect. The traditional immune function test used to estimate materials' immunosuppression is a T-cell-dependent antibody response (TDAR). This method involves a 28 day in vivo study evaluating the animal's antibody titer to a known antigen (KLH) with and without challenge. Due to the limited quantities of novel drug candidates, an in vitro method called human leukocyte activation (HuLa) assay has been developed to substitute the traditional TDAR assay during early preclinical development. In this test, leukocytes isolated from healthy donors vaccinated with the current year's flu vaccine are incubated with Fluzone in the presence or absence of a test material. The antigen-specific leukocyte proliferation is then measured by ELISA analyzing incorporation of BrdU into DNA of the proliferating cells. Here, we describe the experimental procedures for investigating immunosuppressive properties of nanoparticles by both TDAR and HuLa assays, discuss the in vitro-in vivo correlation of these methods, and show a case study using the iron oxide nanoparticle formulation, Feraheme. PMID- 29039103 TI - Analysis of Nanoparticle-Adjuvant Properties In Vivo. AB - Nanoparticles can be engineered for targeted antigen delivery to the immune cells and for stimulating the immune response to improve the antigen immunogenicity. This approach is commonly used to develop nanotechnology-based vaccines. In addition, some nanotechnology platforms may be initially designed for drug delivery, but in the course of subsequent characterization, their additional immunomodulatory functions may be discovered that can potentially benefit vaccine efficacy. In both of these scenarios, an in vivo proof of concept study to verify the utility of the nanocarrier for improving vaccine efficacy is needed. Here, we describe an experimental approach and considerations for designing an animal study to test adjuvant properties of engineered nanomaterials in vivo. PMID- 29039102 TI - Analysis of Pro-inflammatory Cytokine and Type II Interferon Induction by Nanoparticles. AB - Cytokines, chemokines, and interferons are released by the immune cells in response to cellular stress, damage and/or pathogens, and are widely used as biomarkers of inflammation. Certain levels of cytokines are needed to stimulate an immune response in applications such as vaccines or immunotherapy where immune stimulation is desired. However, undesirable elevation of cytokine levels, as may occur in response to a drug or a device, may lead to severe side effects such as systemic inflammatory response syndrome or cytokine storm. Therefore, preclinical evaluation of a test material's propensity to cause cytokine secretion by healthy immune cells is an important parameter for establishing its safety profile. Herein, we describe in vitro methods for analysis of cytokines, chemokines, and type II interferon in whole blood cultures derived from healthy donor volunteers. First, whole blood is incubated with controls and tested nanomaterials for 24 h. Then, culture supernatants are analyzed by ELISA to detect IL-1beta, TNFalpha, IL 8, and IFNgamma. The culture supernatants can also be analyzed for the presence of other biomarkers secreted by the immune cells. Such testing would require additional assays not covered in this chapter and/or optimization of the test procedure to include relevant positive controls and/or cell types. PMID- 29039104 TI - In Vitro and In Vivo Methods for Analysis of Nanoparticle Potential to Induce Delayed-Type Hypersensitivity Reactions. AB - Delayed-type hypersensitivity (DTH) reactions are among the common reasons for drug withdrawal from clinical use during the post-marketing stage. Several in vivo methods have been developed to test DTH responses in animal models. They include the local lymph node assay (LLNA) and local lymph node proliferation assay (LLNP). While LLNA is instrumental in testing topically administered formulations (e.g., creams), the LLNP was proven to be predictive of drug mediated DTH in response to small molecule pharmaceuticals. Global efforts in reducing the use of research animals lead to the development of in vitro models to predict test-material-mediated DTH. Two such models include analysis of surface marker expression in human cell lines THP-1 and U-937. These tests are known as the human cell line activation test (hCLAT) and myeloid U937 skin sensitization test (MUSST or U-SENS), respectively. Here we describe experimental procedures for all these methods, discuss their in vitro-in vivo correlation, and suggest a strategy for applying these tests to analyze engineered nanomaterials and nanotechnology-formulated drug products. PMID- 29039105 TI - Autophagy Monitoring Assay II: Imaging Autophagy Induction in LLC-PK1 Cells Using GFP-LC3 Protein Fusion Construct. AB - Autophagy is a catabolic process involved in the degradation and recycling of long-lived proteins and damaged organelles for maintenance of cellular homeostasis, and it has also been proposed as a type II cell death pathway. The cytoplasmic components targeted for catabolism are enclosed in a double-membrane autophagosome that merges with lysosomes, to form autophagosomes, and are finally degraded by lysosomal enzymes. There is substantial evidence that several nanomaterials can cause autophagy and lysosomal dysfunction, either by prevention of autophagolysosome formation, biopersistence or inhibition of lysosomal enzymes. Such effects have emerged as a potential mechanism of cellular toxicity, which is also associated with various pathological conditions. In this chapter, we describe a method to monitor autophagy by fusion of the modifier protein MAP LC3 with green fluorescent protein (GFP; GFP-LC3). This method enables imaging of autophagosome formation in real time by fluorescence microscopy without perturbing the MAP LC3 protein function and the process of autophagy. With the GFP-LC3 protein fusion construct, a longitudinal study of autophagy can be performed in cells after treatment with nanomaterials. PMID- 29039106 TI - Improved Ultrafiltration Method to Measure Drug Release from Nanomedicines Utilizing a Stable Isotope Tracer. AB - An important step in the early development of a nanomedicine formulation is the evaluation of stability and drug release in biological matrices. Additionally, the measurement of encapsulated and unencapsulated nanomedicine drug fractions is important for the determination of bioequivalence (pharmacokinetic equivalence) of generic nanomedicines. Unfortunately, current methods to measure drug release in plasma are limited, and all have fundamental disadvantages including non equilibrium conditions and process-induced artifacts. The primary limitation of current ultrafiltration (and equilibrium dialysis) methods for separation of encapsulated and unencapsulated drug and determination of drug release is the difficulty in accurately differentiating protein bound and encapsulated drug. Since the protein binding of most drugs is high (>70%) and can change in a concentration- and time-dependent manner, it is very difficult to accurately account for the fraction of non-filterable drug that is encapsulated within the nanomedicine and how much is bound to protein. The method in this chapter is an improvement of existing ultrafiltration protocols for nanomedicine fractionation in plasma, in which a stable isotope tracer is spiked into a nanomedicine containing plasma sample in order to precisely measure the degree of plasma protein binding. Determination of protein binding then allows for accurate calculation of encapsulated and unencapsulated nanomedicine drug fractions, as well as free and protein-bound fractions. PMID- 29039107 TI - Designing an In Vivo Efficacy Study of Nanomedicines for Preclinical Tumor Growth Inhibition. AB - Novel nanoformulated chemotherapeutics and diagnostics require demonstration of efficacy and safety in appropriate animal models prior to conducting early-phase clinical trials. In vivo efficacy experiments are tailored to the tumor model type and route of administration as well as several parameters related to the nanoformulation, like drug loading to determine dosing volume. When designing in vivo efficacy studies for nanomedicines, understanding the relationship between tumor biology and the nanoformulation characteristics is critical to achieving meaningful results, along with applying appropriate drug and nanoformulation controls. In particular, nanoparticles can have multifunctional roles such as targeting and imaging capabilities that require additional considerations when designing in vivo efficacy studies and choosing tumor models. In this chapter, we outline a general study design for a subcutaneously implanted tumor model along with an example of tumor growth inhibition and survival analysis. PMID- 29039108 TI - Preliminary results of a new workflow for MRI/CT-based image-guided brachytherapy in cervical carcinoma. AB - PURPOSE: We propose a method of image-guided brachytherapy (IGBT) that combines MRI-based target volume delineation for the first fraction with CT datasets of subsequent fractions, using an automatic, applicator-based co-registration, and report our preliminary experience. MATERIALS AND METHODS: The MRI of the first fraction was used for the first brachytherapy planning. For each subsequent brachytherapy fraction, after the same applicator insertion, a new CT scan with the applicator in place was obtained. The MR image set was registered to the subsequent brachytherapy treatment planning CT using the applicator for rigid body registration. To demonstrate the registration quality, we used here the Dice index as a measurement of tandem delineation overlap between CT and MRI. RESULTS: The median Dice index was 0.879 (range 0.610-0.932), which indicated that the contours on CT and MRI fitted well. With this combination method, the median D90 of HR CTV and the calculated D2 cm3 of the bladder, rectum, and sigmoid in each fraction were 7.2 (4.0-10.4), 5.9 (2.3-7.7), 4.0 (1.9-6.7), and 3.8 (0.6-7.2) Gy, respectively. CONCLUSION: Our described method of MRI-guided IGBT offers a practical option for the benefits of target delineation. PMID- 29039109 TI - A novel utility of 99mTc-GSA SPECT/CT fusion imaging: detection of inadequate portal vein embolization. AB - PURPOSE: Our aim was to determine the utility of Tc-99m diethylenetriaminepentaacetic acid-galactosyl human serum albumin single-photon emission computed tomography (99mTc-GSA SPECT/CT) fusion imaging for detecting incomplete portal vein embolization (PVE). MATERIALS AND METHODS: Fifty-five candidates underwent PVE. Among them, five underwent second PVE. Detectability of first inadequate PVE using CT and 99mTc-GSA SPECT/CT fusion imaging was analyzed. RESULTS: Cases of inadequate PVE were detected in three patients using CT and in five using 99mTc-GSA SPECT/CT fusion imaging. Fusion imaging detected two cases of insufficient PVE in which portal branches were apparently well embolized on CT. Median value for volumetric rate in the embolized liver was 63.3% after the first PVE and 54.7% after the second (P < 0.01). Median functional rate value in embolized liver was 60.1% after the first PVE and 49.4% after the second (P < 0.01). Median value for change of volumetric and functional rates in embolized liver after the second PVE was 7.1 and 10.3%, respectively, and change of functional rate was greater than that of volumetric rate (P < 0.01). CONCLUSIONS: 99mTc-GSA SPECT/CT fusion imaging was useful for detecting inadequate PVE, and second PVE was effective for increasing volumetric and functional rates. PMID- 29039110 TI - Prognostic value of volumetric FDG PET/CT parameters in patients with oral tongue squamous cell carcinoma who were treated by superselective intra-arterial chemoradiotherapy. AB - PURPOSE: This study aimed to evaluate the predictive and prognostic value of FDG PET/CT-based volumetric parameters in patients with oral tongue squamous cell carcinoma (OTSCC) treated by superselective intra-arterial chemoradiotherapy (IA CRT). METHODS: We conducted a retrospective study including 33 patients with biopsy-proven OTSCC between May 2007 and February 2016. All of the patients were treated by IA-CRT. Pretreatment SUVmax and metabolic tumor volume (MTV) of the primary tumor were measured. The SUV thresholds of 2.5 and 5.0 were used. Progression-free survival (PFS) and overall survival (OS) were chosen as endpoints to evaluate prognosis. Univariate and multivariate analyses were performed to assess the potential independent effect of FDG PET/CT parameters. RESULTS: The median follow-up for surviving patients was 40.7 months (range 6.0 107.5 months). In univariate and multivariate analyses, SUVmax and MTV (5.0) were independent prognostic factors for PFS. In univariate analysis, SUVmax failed to predict OS. MTV (5.0) was a significant prognostic factor for OS, but multivariate analysis failed to show statistical independence because it could not exclude the possibility of an artifact due to N stage. CONCLUSIONS: FDG PET/CT-based volumetric parameters may be significant prognostic markers for survival of patients with OTSCC who are treated by IA-CRT. PMID- 29039112 TI - James Cossar Ewart and the Origins of the Animal Breeding Research Department in Edinburgh, 1895-1920. AB - In 1919 the Animal Breeding Research Department was established in Edinburgh. This Department, later renamed the Institute of Animal Genetics, forged an international reputation, eventually becoming the centrepiece of a cluster of new genetics research units and institutions in Edinburgh after the Second World War. Yet despite its significance for institutionalising animal genetics research in the UK, the origins and development of the Department have not received as much scholarly attention as its importance warrants. This paper sheds new light on Edinburgh's place in early British genetics by drawing upon recently catalogued archival sources including the papers of James Cossar Ewart, Regius Professor of Natural History at the University of Edinburgh between 1882 and 1927. Although presently a marginal figure in genetics historiography, Ewart established two sites for experimental animal breeding work between 1895 and 1911 and played a central role in the founding of Britain's first genetics lectureship, also in 1911. These early efforts helped to secure government funding in 1913. However, a combination of the First World War, bureaucratic problems and Ewart's personal ambitions delayed the creation of the Department and the appointment of its director by another six years. This paper charts the institutionalisation of animal breeding and genetics research in Edinburgh within the wider contexts of British genetics and agriculture in the early twentieth century. PMID- 29039111 TI - Hooking intestine sign: a typical diagnostic CT finding of Petersen's hernia. AB - PURPOSE: To clarify typical diagnostic computed tomography (CT) findings of Petersen's hernia for differentiation from other causes of internal hernia observed in patients having undergone gastrectomy with Roux-en-Y gastric bypass. METHODS: We retrospectively reviewed CT findings of internal hernia in patients who had undergone both gastrectomy and Roux-en-Y reconstruction and a second surgery for bowel obstruction. Thirteen patients with Petersen's hernia and 6 with internal hernia other than Petersen's hernia were investigated. Six CT findings, viz. whirl sign, mesenteric fat haziness, intestinal distension in the upper abdomen, herniated intestinal loop above the gastric level, middle/distal ileum courses downwards from the left hypochondrium, and hooking intestine sign, which means two or more intestines pass through the inner side of J-shaped vessels consisting of mesenteric vessels of the elevated jejunum, were scored and evaluated regarding their diagnostic performance. RESULTS: The hooking intestine sign showed the highest sensitivity, specificity and accuracy (100%, 100% and 100%). We could detect J-shaped vessels in all Petersen's hernia patients. Inside the J-shaped vessels there were two or more intestinal tracts passing through in the Petersen's hernia group. There was only transverse colon inside the J-shaped vessels in the control group. CONCLUSION: The hooking intestine sign may be useful for diagnosing Petersen's hernia on CT. PMID- 29039113 TI - A gastric glomus tumor resected using non-exposed endoscopic wall-inversion surgery. AB - Gastric glomus tumors are extremely rare, constituting approximately 1% of gastric mesenchymal tumors. We report the case of a 45-year-old female patient in whom upper gastrointestinal endoscopy revealed a 3-cm submucosal tumor with a bridging fold in the posterior wall of the antrum of the stomach. Contrast enhanced computed tomography revealed the tumor to be hypervascular in the arterial phase and exhibit continuous enhancement in the post-venous phase. Dynamic contrast-enhanced magnetic resonance imaging showed that the tumor was hypervascular in the early phase and persistently enhanced in the late phase. Endoscopic ultrasonography revealed a mosaic echo pattern. Endoscopic ultrasound guided fine-needle aspiration biopsy was performed. Immunohistochemical examination revealed that the tumor was positive for alpha-smooth muscle actin and synaptophysin, but negative for CD56, chromogranin A and C-kit. Furthermore, 1-2% of the tumor cell nuclei were Ki-67-positive. Thus, the preoperative diagnosis was a benign glomus tumor. The patient then underwent non-exposed endoscopic wall-inversion surgery (NEWS), and the tumor was completely resected. In conclusion, NEWS is an effective method for the treatment of gastric glomus tumors. PMID- 29039114 TI - Long-term survival after repeated resection of metachronous lung metastases from pStage IA pancreatic adenocarcinoma. AB - CASE REPORT: A 70-year-old woman with pancreatic ductal adenocarcinoma was initially treated by distal pancreatectomy (DP). Thirty-five months later, another tumor appeared in the pancreatic head and was treated by pancreaticoduodenectomy. Histopathological findings identified both tumors as pancreatic ductal adenocarcinoma pStage IA. Computed tomography (CT) of the chest 16 months after the second pancreatectomy revealed a ground-glass opacity in segment 3 of the right lung. Chest CT 23 months after the second pancreatectomy revealed a nodular shadow in segment 1a of the right lung. Chest CT 39 months after the second pancreatectomy revealed a nodular shadow in segment 5 of the left lung. These lesions were treated by video-assisted thoracoscopic surgery partial resection. Histopathological and immunohistochemical features (positive for cytokeratin (CK)7 and CK20, negative for transcription factor-1) for these three lesions and the secondary pancreatic ductal adenocarcinoma were similar, indicating a diagnosis of lung metastasis from the second pancreatic ductal adenocarcinoma. The patient has remained alive and free of new metastases for 8 years after initial DP, 3 years after the last lung resection. CONCLUSION: This patient has survived over the long term after undergoing three resections of lung metastases from resected pancreatic ductal adenocarcinoma. PMID- 29039116 TI - Emigration Rates From Sample Surveys: An Application to Senegal. AB - What is the emigration rate of a country, and how reliable is that figure? Answering these questions is not at all straightforward. Most data on international migration are census data on foreign-born population. These migrant stock data describe the immigrant population in destination countries but offer limited information on the rate at which people leave their country of origin. The emigration rate depends on the number leaving in a given period and the population at risk of leaving, weighted by the duration at risk. Emigration surveys provide a useful data source for estimating emigration rates, provided that the estimation method accounts for sample design. In this study, emigration rates and confidence intervals are estimated from a sample survey of households in the Dakar region in Senegal, which was part of the Migration between Africa and Europe survey. The sample was a stratified two-stage sample with oversampling of households with members abroad or return migrants. A combination of methods of survival analysis (time-to-event data) and replication variance estimation (bootstrapping) yields emigration rates and design-consistent confidence intervals that are representative for the study population. PMID- 29039115 TI - Genome-Editing Technologies in Adoptive T Cell Immunotherapy for Cancer. AB - PURPOSE OF REVIEW: In this review, we discuss the most recent developments in gene-editing technology and discuss their application to adoptive T cell immunotherapy. RECENT FINDINGS: Engineered T cell therapies targeting cancer antigens have demonstrated significant efficacy in specific patient populations. Most impressively, CD19-directed chimeric antigen receptor T cells (CART19) have led to impressive responses in patients with B-cell leukemia and lymphoma. CTL019, or KYMRIAHTM (tisagenlecleucel), a CD19 CAR T cell product developed by Novartis and the University of Pennsylvania, was recently approved for clinical use by the Food and Drug Administration, representing a landmark in the application of adoptive T cell therapies. As CART19 enters routine clinical use, improving the efficacy of this exciting platform is the next step in broader application. Novel gene-editing technologies like CRISPR-Cas9 allow facile editing of specific genes within the genome, generating a powerful platform to further optimize the activity of engineered T cells. PMID- 29039117 TI - In Vivo Dentate Nucleus Gamma-aminobutyric Acid Concentration in Essential Tremor vs. Controls. AB - : Despite its high prevalence, essential tremor (ET) is among the most poorly understood neurological diseases. The presence and extent of Purkinje cell (PC) loss in ET is the subject of controversy. PCs are a major storehouse of central nervous system gamma-aminobutyric acid (GABA), releasing GABA at the level of the dentate nucleus. It is therefore conceivable that cerebellar dentate nucleus GABA concentration could be an in vivo marker of PC number. We used in vivo 1H magnetic resonance spectroscopy (MRS) to quantify GABA concentrations in two cerebellar volumes of interest, left and right, which included the dentate nucleus, comparing 45 ET cases to 35 age-matched controls. 1H MRS was performed using a 3.0-T Siemens Tim Trio scanner. The MEGA-PRESS J-editing sequence was used for GABA detection in two cerebellar volumes of interest (left and right) that included the dentate nucleus. The two groups did not differ with respect to our primary outcome of GABA concentration (given in institutional units). For the right dentate nucleus, [GABA] in ET cases = 2.01 +/- 0.45 and [GABA] in controls = 1.86 +/- 0.53, p = 0.17. For the left dentate nucleus, [GABA] in ET cases = 1.68 +/- 0.49 and [GABA] controls = 1.80 +/- 0.53, p = 0.33. The controls had similar dentate nucleus [GABA] in the right vs. left dentate nucleus (p = 0.52); however, in ET cases, the value on the right was considerably higher than that on the left (p = 0.001). We did not detect a reduction in dentate nucleus GABA concentration in ET cases vs. CONTROLS: One interpretation of the finding is that it does not support the existence of PC loss in ET; however, an alternative interpretation is the observed pattern could be due to the effects of terminal sprouting in ET (i.e., collateral sprouting from surviving PCs making up for the loss of GABA-ergic terminals from PC degeneration). Further research is needed. PMID- 29039118 TI - A systematic review of flap fixation techniques in reducing seroma formation and its sequelae after mastectomy. AB - BACKGROUND: Seroma formation is a common complication after mastectomy. This review aims to elucidate which surgical techniques are most effective in reducing the dead space and therefore seroma formation in patients undergoing mastectomy. METHODS: A literature search was performed to identify clinical studies comparing any form of flap fixation to conventional closure technique in patients undergoing mastectomy with or without axillary clearance. Studies were eligible for inclusion if outcome was described in terms of seroma formation and/or complications of seroma formation. Studies on animal research or breast reconstruction with tissue expanders or flap harvesting (latissimus dorsi) were excluded. RESULTS: A total of nine articles were eligible for inclusion. Five were retrospective studies and four were prospective. Retrospective and prospective studies have demonstrated the higher incidence of seroma formation in patients not undergoing mechanical flap fixation. The incidence of seroma-related complications in these studies vary. Four out of the nine studies demonstrate that patients undergoing flap fixation, need significantly fewer seroma aspirations. There are very few studies on the use of tissue glues preventing seroma formation. CONCLUSION: The scientific body of evidence favoring flap fixation after mastectomy is convincing. Mechanical flap fixation seems to reduce seroma formation and seroma aspiration after mastectomy. There are, however, no well-powered randomized controlled trials evaluating all aspects of seroma formation and its sequelae. Further research should elucidate whether flap fixation using sutures or tissue glue is superior. PMID- 29039119 TI - Clinical implications of germline mutations in breast cancer: TP53. AB - PURPOSE: This review describes the prevalence of germline TP53 mutations, the risk of breast cancer and other cancers in mutation carriers and management implications for women with breast cancer and unaffected women. METHODS: Literature review of English language papers available through PubMed. RESULTS: Women who carry germline mutations in the TP53 gene have a very high risk of breast cancer of up to 85% by age 60 years. Most of these breast cancers are early onset with a median age at diagnosis of 34 years. Approximately 5-8% of women presenting with breast cancer under 30 years old have a germline TP53 gene mutation. Breast cancers in women with TP53 mutations are more likely to be hormone receptor positive and/or Her2 positive. Mastectomy is recommended over lumpectomy in TP53 mutation carriers who have breast cancer so that adjuvant breast radiotherapy can be avoided. Risk-reducing surgery should be considered due to the high contralateral breast cancer risk. Mutation carriers are at high risk of various childhood and adult-onset cancers with a very lifetime risk of malignancy, the commonest malignancies being breast cancer and soft tissue sarcoma. In unaffected female mutation carriers, MRI breast screening or risk reducing surgery is recommended. The optimal surveillance for other cancers is currently unclear and should ideally be performed as part of a clinical trial. CONCLUSIONS: Identifying a TP53 mutation in a gene panel test is a challenging result for the patient and clinician due to the high risk of second primaries and the lack of consensus about surveillance. PMID- 29039121 TI - Degradation of glycosphingolipids in oyster: ceramide glycanase and ceramidase in the hepatopancreas of oyster, Crassostrea virginica. AB - The hepatopancreas of oyster, Crassostrea virginica, was found to contain two unique glycosphingolipid (GSL) cleaving enzymes, ceramide glycanase (CGase) and ceramidase. These two enzymes were found to be tightly associated together through the consecutive purification steps including gel filtration, hydrophobic interaction and cation-exchange chromatographies. They were separated only by preparatory SDS-PAGE. The purified CGase was found to have a molecular mass of 52 kDa and pH optimum of 3.2-3.3. This enzyme prefers to hydrolyze the acidic GSLs, II3SO3LacCer and gangliosides over the neutral GSLs. Oyster ceramidase was found to have a molecular mass of 88 kDa and pH optimum of 4-4.5. Since oyster ceramidase greatly prefers ceramides with C6 to C8 fatty acids, C6-ceramide (N hexanoyl-D-sphingosine) was used as the substrate for its purification and characterization. The oyster acid ceramidase also catalyzed the synthesis of ceramide from a sphingosine and a fatty acid. For the synthesis, C16 and C18 fatty acids were the best precursors. The amino acid sequences of the two cyanogenbromide peptides derived from the purified ceramidase were found to have similarities to those of several neutral and alkaline ceramidases reported. The tight association of CGase and ceramidase may indicate that CGase in oyster hepatopancreas acts as a vehicle to release ceramide from GSLs for subsequent generation of sphingosines and fatty acids by ceramidase to serve as signaling factors and energy source. PMID- 29039122 TI - Why Psychiatric Education Needs the Humanities. PMID- 29039120 TI - Differential presentation and survival of de novo and recurrent metastatic breast cancer over time: 1990-2010. AB - BACKGROUND: Differences in de novo (dnMBC) and recurrent metastatic breast cancer (rMBC) presentation and survival over time have not been adequately described. METHODS: A retrospective cohort study, 1990-2010, with follow up through 2015 of dnMBC patients (stage IV at diagnosis) and rMBC patients with subsequent distant metastatic recurrence (stage I-III initial diagnosis) [dnMBC = 247, rMBC = 911)]. Analysis included Chi squared tests of categorical variables, Kaplan-Meier survival estimates, and Cox proportional adjusted hazard ratios (HzR) and 95% confidence intervals (CI). Disease specific survival (DSS) was time from diagnosis or distant recurrence to BC death. RESULTS: Over time, 1990-1998, 1999 2004, and 2005-2010, dnMBC incidence was constant (3%) and rMBC incidence decreased [18% to 7% (p < 0.001)] with no change in dnMBC hormone receptor (HR) or her2-neu (HER2) status but a decrease in rMBC HER2-positive cases and increase in triple negative breast cancer (HR-negative/HER2-negative) (p = 0.049). Five year dnMBC DSS was 44% vs. 21% for rMBC (p < 0.001). Five-year dnMBC DSS improved over time [28% to 55% (p = 0.008)] and rMBC worsened [23% to 13%, p = 0.065)]. Worse DSS was associated with HR-negative status (HzR = 1.63; 1.41, 1.89), rMBC (HzR = 1.88; 1.58, 2.23), older age (70 +) (HzR = 1.88; 1.58, 2.24), > 1 distant metastases (HzR 1.39; 1.20, 1.62), and visceral dominant disease (HzR 1.22; 1.05, 1.43). After 1998, HER2-positive disease was associated with better DSS (HzR = 0.72, 95% CI 0.56, 0.93). CONCLUSIONS: Factors associated with the widening survival gap and non-equivalence between dnMBC and rMBC and decreased rMBC incidence warrant further study. PMID- 29039123 TI - Authors' Response to Comment on "Collaborative Training Efforts with Pediatric Providers in Addressing Mental Health Problems in Primary Care". PMID- 29039124 TI - Recent progress in mass spectrometry proteomics for biomedical research. AB - Proteins are the key players in many cellular processes. Their composition, trafficking, and interactions underlie the dynamic processes of life. Furthermore, diseases are frequently accompanied by malfunction of proteins at multiple levels. Understanding how biological processes are regulated at the protein level is critically important to understanding the molecular basis for diseases and often shed light on disease prevention, diagnosis, and treatment. With rapid advances in mass spectrometry (MS) instruments and experimental methodologies, MS-based proteomics has become a reliable and essential tool for elucidating biological processes at the protein level. Over the past decade, we have witnessed great expansion of knowledge of human diseases with the application of MS-based proteomic technologies, which has led to many exciting discoveries. Herein we review the recent progress in MS-based proteomics in biomedical research, including that in establishing disease-related proteomes and interactomes. We also discuss how this progress will benefit biomedical research and clinical diagnosis and treatment of disease. PMID- 29039126 TI - Brain's neural switch for social dominance in animals. PMID- 29039127 TI - Dermotaxis v/s loop suture technique for closure of fasciotomy wounds: a study of 50 cases. AB - Fasciotomy incisions lead to large, unsightly, chronic wounds after surgical intervention. Classic management was to use split-thickness skin grafts, but this leads to insensate skin with reports that as many as 23% of patients are dissatisfied by the appearance of the wound. Since no skin loss has occurred with the fasciotomy incision, utilizing the dermal properties of creep, stress relaxation and load cycling, closure can be achieved in a better way. We describe using dermotaxis for skin edge approximation that is done using inexpensive equipment available readily in any standard operating room. Twenty-five patients had fasciotomy wounds closed either by dermotaxis or a loop suture technique with the inclusion criteria being closed fractures, no concomitant skin loss, fracture related compartment syndrome and fasciotomy performed within 36 h. The fasciotomy incision was closed in a single stage by loop suture technique or gradually by dermotaxis once the oedema had settled between 3 and 5 days. Results were graded as excellent if approximation could be achieved, good if sutures had to be applied for protective care and poor if wounds needed to be skin-grafted. In the dermotaxis group, results were excellent in 15, good in 8 and poor in 2 cases. In the loop suture technique group, results were excellent in 20, good in 4 and poor in 1 case. Dermal apposition using inexpensive, readily available equipment is an alternative method for closure of fasciotomy wounds. If limb oedema has settled sufficiently, closure using a loop suture can be done in a single stage. If the limb remains oedematous, gradual closure can be done using dermotaxis. PMID- 29039125 TI - Hypoxia inducible factor (HIF) in the tumor microenvironment: friend or foe? AB - Hypoxia acts as an important regulator of physiological and pathological processes. Hypoxia inducible factors (HIFs) are the central players involved in the cellular adaptation to hypoxia and are regulated by oxygen sensing EGLN prolyl hydroxylases. Hypoxia affects many aspects of cellular growth through both redox effects and through the stabilization of HIFs. The HIF isoforms likely have differential effects on tumor growth via alteration of metabolism, growth, and self-renewal and are likely highly context-dependent. In some tumors such as renal cell carcinoma, the EGLN/HIF axis appears to drive tumorigenesis, while in many others HIF1 and HIF2 may actually have a tumor suppressive role. An emerging role of HIF biology is its effects on the tumor microenvironment. The EGLN/HIF axis plays a key role in regulating the function of the various components of the tumor microenvironment, which include cancer-associated fibroblasts, endothelial cells, immune cells, and the extracellular matrix (ECM). Here, we discuss hypoxia and the diverse roles of HIFs in the setting of tumorigenesis and the maintenance of the tumor microenvironment as well as possible future directions of the field. PMID- 29039128 TI - Distal femoral flexion deformity from growth disturbance treated with a two-level osteotomy and internal lengthening nail. AB - Salter Harris fractures of the distal femur can lead to growth disturbance with resulting leg length inequality and knee deformity. We have looked at a case series (3) of patients who presented with a distal femur flexion malunion and shortening treated with a distal femoral osteotomy and plating and a proximal femoral osteotomy with a magnetic internal lengthening nail. Does a two-level osteotomy and internal fixation approach provide a reliable result both radiographically and functionally? The average knee extension loss was 12 degrees , LLD 47 mm, PDFA 65 degrees , MAD 2 mm. The patients were treated with an acute, posterior, opening wedge osteotomy of the distal femur stabilized with a lateral plate and screws and grafted with cancellous chips and putty. A second osteotomy was made proximally in the femur percutaneously, and the internal lengthening nail was inserted. Lengthening was done at approximately 1 mm/day. The average extension gain was 12 degrees ; amount of lengthening at the proximal site was 40 mm, LLD was 3 mm. The average PDFA was 81 degrees , and MAD 3 mm. There were no complications. Functional results were excellent. Bone healing index was 24 days/cm. The average distance from the distal osteotomy to the joint line was 57 mm. The technique of two-level femur osteotomy stabilized with a plate and lengthening nail yielded excellent results with acceptable correction of deformity, full knee extension, and improved function. There were no complications including implant failure, infection, need for blood transfusion, knee stiffness, nonunion, compartment syndrome, or malunion. PMID- 29039129 TI - Implicit attitudes and executive control interact to regulate interest in extra pair relationships. AB - Do we actively maintain monogamous relationships by force of will, or does monogamy flow automatically? During functional magnetic resonance imaging (fMRI), male participants in a romantic relationship performed the Implicit Association Test (IAT) to evaluate implicit attitudes toward adultery and a go/no-go task to measure prefrontal activity implicated in explicit executive control. Subsequently, they were engaged in a date-rating task in which they rated how much they wanted to date unfamiliar females. We found that the individuals with higher prefrontal activity during go/no-go task could regulate the interest for dates with unattractive females; moreover, the individuals with both a stronger negative attitude toward adultery and higher prefrontal activity could regulate their interest for dates with attractive females, and such individuals tended to maintain longer romantic relationships with a particular partner. These results indicate that regulation of amorous temptation via monogamous relationship is affected by the combination of automatic and reflective processes. PMID- 29039131 TI - Phenotype, disease severity and pain are major determinants of quality of life in Fabry disease: results from a large multicenter cohort study. AB - Quality of life (QoL) is decreased in patients with Fabry disease (FD). To improve QoL, it is important to understand the influence of FD related characteristics, symptoms, and complications. In this retrospective cohort study we explored the effect of pain (measured by the Brief Pain Inventory), phenotype, treatment, and FD-related complications on QoL. QoL data of Fabry patients as assessed by the EuroQol five dimension questionnaire (EQ-5D) from two international centers of excellence were collected. The aim of this study was to evaluate the effect of sex, phenotype, age, different states of disease severity, pain, and ERT on EQ-5D utilities. For 286 adult FD patients (mean age 42.5 years, 40% men, 60% classical phenotype) 2240 EQ-5Ds were available. QoL is decreased in men as well as women with FD, especially in older men with a classical phenotype. At age 50, utility was lower in men with classical FD compared to those with non classical disease (beta = -0.12, 95% CI: -0.23 - 0.01, p = 0.037) with further difference in the years thereafter. Cardiovascular complications, stroke or transient ischemic attacks, multiple FD-related complications and pain were also associated with decreased utilities. Overall, no change in utility was seen in patients on ERT over a mean follow-up of 6.1 years. FD leads to a decreased QoL compared to the general population. Disease complications and pain both negatively influence QoL. Adequate assessment and treatment of pain as well as improved strategies to prevent disease complications are needed to improve QoL in the FD population. PMID- 29039130 TI - Aspirin for Prevention of Preeclampsia. AB - Aspirin is currently the most widely prescribed treatment in the prevention of cardiovascular complications. The indications for the use of aspirin during pregnancy are, however, the subject of much controversy. Since the first evidence of the obstetric efficacy of aspirin in 1985, numerous studies have tried to determine the effect of low-dose aspirin on the incidence of preeclampsia, with very controversial results. Large meta-analyses including individual patient data have demonstrated that aspirin is effective in preventing preeclampsia in high risk patients, mainly those with a history of preeclampsia. However, guidelines regarding the usage of aspirin to prevent preeclampsia differ considerably from one country to another. Screening modalities, target population, and aspirin dosage are still a matter of debate. In this review, we report the pharmacodynamics of aspirin, its main effects according to dosage and gestational age, and the evidence-based indications for primary and secondary prevention of preeclampsia. PMID- 29039132 TI - Violent Injury and Neighborhood Racial/Ethnic Diversity in Oakland, California. AB - Racial and ethnic segregation has been linked to a number of deleterious health outcomes, including violence. Previous studies of segregation and violence have focused on segregation between African Americans and Whites, used homicide as a measure of violence, and employed segregation measures that fail to take into account neighborhood level processes. We examined the relationship between neighborhood diversity and violent injury in Oakland, California. Violent injuries from the Alameda County Medical Center Trauma Registry that occurred between 1998 and 2002 were geocoded. A local measure of diversity among African American, White, Hispanic, and Asian populations that captured interactions across census block group boundaries was calculated from 2000 U.S. Census data and a Geographic Information System. The relationship between violent injuries and neighborhood level of diversity, adjusted for covariates, was analyzed with zero-inflated negative binomial regression. There was a significant and inverse association between level of racial and ethnic diversity and rate of violent injury (IRR 0.30; 95% CI: 0.13-0.69). There was a similar relationship between diversity and violent injury for predominantly African American block groups (IRR 0.23; 95% CI: 0.08-0.62) and predominantly Hispanic block groups (IRR 0.08; 95% CI: 0.01-0.76). Diversity was not significantly associated with violent injury in predominantly White or Asian block groups. Block group racial and ethnic diversity is associated with lower rates of violent injury, particularly for predominantly African American and Hispanic block groups. PMID- 29039133 TI - The Experience of Implementing Urban HEART Barcelona: a Tool for Action. AB - Urban Health Equity Assessment and Response Tool (HEART) is a tool developed by the World Health Organization whose objective is to provide evidence on urban health inequalities so as to help to decide the best interventions aimed to promote urban health equity. The aim of this paper is to describe the experience of implementing Urban HEART in Barcelona city, both the adaptation of Urban HEART to the city of Barcelona, its use as a means of identifying and monitoring health inequalities among city neighbourhoods, and the difficulties and barriers encountered throughout the process. Although ASPB public health technicians participated in the Urban HEART Advisory Group, had large experience in health inequalities analysis and research and showed interest in implementing the tool, it was not until 2015, when the city council was governed by a new left-wing party for which reducing health inequalities was a priority that Urban HEART could be used. A provisional matrix was developed, including both health and health determinant indicators, which allowed to show how some neighbourhoods in the city systematically fare worse for most of the indicators while others systematically fare better. It also allowed to identify 18 neighbourhoods-those which fared worse in most indicators-which were considered a priority for intervention, which entered the Health in the Barcelona Neighbourhoods programme and the Neighbourhoods Plan. This provisional version was reviewed and improved by the Urban HEART Barcelona Working Group. Technicians with experience in public health and/or in indicator and database management were asked to indicate suitability and relevance from a list of potential indicators. The definitive Urban HEART Barcelona version included 15 indicators from the five Urban HEART domains and improved the previous version in several requirements. Several barriers were encountered, such as having to estimate indicators in scarcely populated areas or finding adequate indicators for the physical context domain. In conclusion, the Urban HEART tool allowed to identify urban inequalities in the city of Barcelona and to include health inequalities in the public debate. It also allowed to reinforce the community health programme Health in the Barcelona Neighbourhoods as well as other city programmes aimed at reducing health inequalities. A strong political will is essential to place health inequalities in the political agenda and implement policies to tackle them. PMID- 29039135 TI - Metabolic iodine and tumours. AB - PURPOSE: Purpose of the work is to highlight a possible connection between metabolic iodine and natural tumour control. METHOD: Method adopted is to use information available in the literature. RESULT: Result indicated a means of the purpose being attained. CONCLUSION: Conclusion drawn is that a tumour control method derives from the relationship studied. PMID- 29039136 TI - Cancer risk management in Tasmanian women with BRCA1 and BRCA2 mutations. AB - Women carrying germline mutations in BRCA1 or BRCA2 have significantly increased lifetime risks of breast and tubo-ovarian cancer. To manage the breast cancer risk women may elect to have breast screening by MRI/mammogram from age 30, to take risk-reducing medication, or to have a prophylactic bilateral mastectomy. To manage the tubo-ovarian cancer risk, the only effective strategy is to have a bilateral salpingo-oophorectomy, recommended by age 40 (BRCA1) or 'around' age 40 (BRCA2). Early studies suggested that uptake of these cancer risk-reducing strategies was low. More recent studies have revealed higher rates of uptake, however it is unclear whether uptake is genuinely improving or whether the higher uptake rates reflect changes in the populations studied. In this study we surveyed 193 BRCA1/2 mutation carriers in the state of Tasmania to determine the uptake of cancer risk-reducing strategies and what factors might influence women's decisions in relation to both gynaecological and breast surgery. We observed that uptake of risk management strategies varied depending on the strength of the recommendation in the national guidelines. Uptake rates were > 90% for strategies which are strongly recommended, such as breast screening by MRI/mammogram and bilateral salpingo-oophorectomy, and were unaffected by demographic factors such as socio-economic disadvantage and educational achievement. Uptake rates were much lower for strategies which are presented in the guidelines as options for consideration and where patient choice and shared decision making are encouraged, such as prophylactic mastectomy (29%) and chemoprevention (1%) and in the case of prophylactic mastectomy, were influenced by both socio-economic advantage and educational achievement. PMID- 29039137 TI - Three-dimensional image in lung transplantation. AB - Three-dimensional computed tomography (3D-CT) technologies have been developed and, recently, high-speed and high-quality 3D-CT technologies have been introduced to the field of thoracic surgery. The purpose of this manuscript is to demonstrate the clinical application of 3D-CT technologies in lung transplantation. In Japan, because of the severe donor shortage, living-donor lobar lung transplantation (LDLLT) is essential, in addition to cadaveric lung transplantation. In LDLLT, size matching is a grave issue, since ideal size matching between donor and recipient is usually difficult because of the limited population of potential donor. Size matching using pulmonary function test results has been widely used as a gold standard, but anatomical size matching using 3D-CT volumetry data has also been utilized in LDLLT. In donor lobectomy, 3D-CT images provided a variety of information regarding anatomical variation of pulmonary vessels and bronchial trees preoperatively. These images ensure surgical quality and safety, and they also affect surgical procedures for the recipient. 3D-CT images are also utilized in various aspects of postoperative care, such as detection of chronic lung allograft dysfunction and clarification of its subtypes. Furthermore, preoperative 3D-CT simulation is useful in developing and performing a special surgical procedure, such as right-to-left inverted LDLLT. In conclusion, following the introduction of 3D-CT to the field of thoracic surgery, various 3D-CT images and their application to preoperative simulations have been introduced in lung transplantation. In the near future, this technique will become more prevalent, and frequent use by thoracic surgeons will be seen worldwide in daily practice. PMID- 29039139 TI - Individualizing the tibial tubercle to trochlear groove distance to patient specific anatomy improves sensitivity for recurrent instability. AB - PURPOSE: An initial episode of patellar instability poses a treatment challenge given the absence of a valid, reproducible, and universally applicable predictor of recurrence. Recently, a series of patellar instability ratios (PIRs) were described. Each ratio consisted of the traditional tibial tubercle to trochlear groove (TT-TG) distance normalized to patient-specific measures. The purpose of this study was to investigate the reliability and validity of these novel measures. METHODS: Eighty-seven patients experiencing a first-time lateral patellar dislocation were identified in a retrospective manner. Magnetic resonance imaging (MRI) studies obtained at the time of injury were reviewed. The TT-TG distance, patellar width (PW), trochlear width (TW), patellar length (PL), and trochlear length (TL) were obtained by two observers in a blinded, randomized fashion. Measurement reliability was assessed using intra-class correlation coefficients (ICCs). Patients were divided into those having a single dislocation (Group 1) and those experiencing recurrent instability (Group 2). The ability of the TT-TG distance and each PIR to predict recurrent instability was assessed by calculating odds ratios (ORs) with 95% confidence intervals (CIs). Sensitivity and specificity were also calculated for each measure. RESULTS: Excellent inter rater agreement was observed with ICCs > 0.75 for all patellofemoral joint measurements obtained on MRI. The TT-TG distance alone was predictive of recurrent patellar instability with an OR of 8.9 (p < 0.001). However, the isolated TT-TG distance had the lowest sensitivity at 25.6%. Among ratios, a TT TG/PL >= 0.5 was the most predictive of recurrent instability with an ORs of 6.1 (p = < 0.001). A TT-TG/TL >= 0.8 was also predictive of recurrence (OR 4.9, p = 0.027) and had the highest sensitivity of any measure at 94.9%. CONCLUSION: The results of the current study support the reproducibility and predictive ability of PIRs. While a TT-TG >= 20 mm was the strongest predictor of recurrent patellar instability, it was a relatively insensitive measure. Sensitivity may be improved by normalizing the TT-TG distance to patient-specific axial and sagittal plane patellofemoral measurements on MRI. Ultimately, PIRs are reproducible measures that may serve as an additional tool when clinically assessing the unstable patellofemoral joint. LEVEL OF EVIDENCE: III. PMID- 29039138 TI - The Role of GABA Receptor Agonists in Anesthesia and Sedation. AB - GABA (gamma-aminobutyric acid) receptors, of which there are two types, are involved in inhibitory synapses within the central nervous system. The GABAA receptor (GABAAR) has a central role in modern anesthesia and sedation practice, which is evident from the high proportion of agents that target the GABAAR. Many GABAAR agonists are used in anesthesia practice and sedation, including propofol, etomidate, methohexital, thiopental, isoflurane, sevoflurane, and desflurane. There are advantages and disadvantages to each GABAAR agonist currently in clinical use. With increasing knowledge regarding the pharmacology of GABAAR agonists, however, newer sedative agents have been developed which employ 'soft pharmacology', a term used to describe the pharmacology of agents whereby their chemical configuration allows rapid metabolism into inactive metabolites after the desired therapeutic effect(s) has occurred. These newer 'soft' GABAAR agonists may well approach ideal sedative agents, as they can offer well controlled, titratable activity and ultrashort action. This review provides an overview of the role that GABAAR agonists currently play in sedation and anesthesia, in addition to discussing the future role of novel GABAAR agonists in anesthesia and sedation. PMID- 29039140 TI - CASQ1 mutations impair calsequestrin polymerization and cause tubular aggregate myopathy. PMID- 29039141 TI - Does Parkinson's disease start in the gut? AB - Parkinson's disease (PD) is pathologically characterized by the presence of intraneuronal inclusions, termed Lewy bodies and Lewy neurites, whose main component is alpha-synuclein. Based on the topographic distribution of Lewy bodies and neurites established after autopsy from PD patients, Braak and coworkers hypothesized that PD pathology may start in the gastrointestinal tract then spread through the vagus nerve to the brain. This hypothesis has been reinforced by the discovery that alpha-synuclein may be capable of spreading transcellularly, thereby providing a mechanistic basis for Braak's hypothesis. This 'gut to brain' scenario has ignited heated debates within the movement disorders community and prompted a large number of studies in both humans and animals. Here, we review the arguments for and against the gut as the origin of PD. We conclude that the human autopsy evidence does not support the hypothesis and that it is too early to draw any definitive conclusions. We discuss how this issue might be further addressed in future research. PMID- 29039142 TI - Microbiota-Brain-Gut Axis and Neurodegenerative Diseases. AB - PURPOSE OF REVIEW: The purposes of this review were as follows: first, to provide an overview of the gut microbiota and its interactions with the gut and the central nervous system (the microbiota-gut-brain axis) in health, second, to review the relevance of this axis to the pathogenesis of neurodegenerative diseases, such as Parkinson's disease, and, finally, to assess the potential for microbiota-targeted therapies. RECENT FINDINGS: Work on animal models has established the microbiota-gut-brain axis as a real phenomenon; to date, the evidence for its operation in man has been limited and has been confronted by considerable logistical challenges. Animal and translational models have incriminated a disturbed gut microbiota in a number of CNS disorders, including Parkinson's disease; data from human studies is scanty. While a theoretical basis can be developed for the use of microbiota-directed therapies in neurodegenerative disorders, support is yet to come from high-quality clinical trials. In theory, a role for the microbiota-gut-brain axis is highly plausible; clinical confirmation is awaited. PMID- 29039143 TI - CD80 Regulates Th17 Cell Differentiation in Coxsackie Virus B3-Induced Acute Myocarditis. AB - The cluster of differentiation protein complex, CD80/CD86, regulates Th1/Th2 differentiation in autoimmune disease. In order to establish the effects of CD80/CD86 on Th17 cell differentiation in acute viral myocarditis (VMC), we infected C57BL/6 mice with Coxsackie virus B3 (CVB3) and examined the effects of the treatment with anti-CD80/CD86 monoclonal antibodies (mAbs) on Th17 cell differentiation in vivo. The effects of anti-CD80/CD86 mAbs on Th17 cell differentiation were further evaluated in vitro. The treatment with anti-CD80 mAb induced marked suppression of Th17 cell differentiation and ROR-gammat mRNA expression, whereas anti-CD86 mAb alone had no effect, both in vivo and in vitro. Our finding that CD80 regulates Th17 differentiation supports the potential utility of anti-CD80 mAb as an effective new immunotherapeutic target in acute VMC. PMID- 29039144 TI - Transoral endoscopic thyroidectomy via a vestibular approach: why and how? AB - The transoral endoscopic thyroidectomy vestibular approach (TOETVA) is a novel, scar-free surgical procedure that does not require visible incisions. Indications for TOETVA are as follows: predicted gland width on diagnostic imaging <=10 cm; a thyroid volume outline of <45 mL or dominant nodule dimension of <=50 mm; three or four Bethesda lesions; a primary papillary microcarcinoma without local or distant metastasis; and patient request for optimal esthetic results. Contraindications are as follows: patients unfit for general anesthesia; precedent radiation in the head, neck, upper mediastinum; antecedent neck surgery; recurrent goiter; a gland volume of >45 mL or main nodule diameter of >50 mm; and documentation of lymph node or distant metastases, tracheal/esophageal infiltration, preoperative laryngeal nerve palsy, hyperthyroidism, mediastinal goiter, or an oral abscess. Patients with poorly differentiated or un-differentiated cancer, dorsal extrathyroidal radius, and/or lateral neck metastasis are not suitable for TOETVA. Following the introduction of a robotic surgical system, enabling a three-dimensional surgical view and the use of articulating instruments, TOETVA became suitable for most differentiated thyroid cancers without evidence of extensive extrathyroidal invasion or lateral neck metastasis. The procedure is performed using a vestibular approach and three port technique; a 10-mm port is used for the 30 degrees endoscope, two 5-mm ports are used for the dissecting and coagulating instruments, and an 8-mm port is placed in the axillary fold during the robotic procedure to enhance fine countertraction of tissue for radical oncological dissection. TOETVA follows surgical planes and is probably the best scar-free approach to the thyroid, given the short distance between the gland and intraoral incisions. PMID- 29039145 TI - Adiponectin circulating levels and 10-year (2002-2012) cardiovascular disease incidence: the ATTICA Study. AB - PURPOSE: Adiponectin is an adipokine with anti-inflammatory and cardiovascular protective properties. Existing epidemiological evidence is conflicting on the exact relationship between adiponectin and long-term cardiovascular disease (CVD) risk. Our aim was to prospectively assess whether circulating adiponectin is associated with long-term incident CVD. METHODS: A population-based, prospective study in adults (>18 years) without previous CVD history (ATTICA study). Circulating total adiponectin levels were measured at baseline (2001-2002) in a sub-sample (n = 531; women/men: 222/309; age: 40 +/- 11 years) of the ATTICA cohort and complete 10-year follow-up data were available in 366 of these participants (women/men: 154/212; age: 40 +/- 12 years). RESULTS: After adjusting for multiple factors, including age, sex, body mass index, waist circumference, smoking, physical activity, Mediterranean diet adherence, hypertension, diabetes, and hypercholesterolemia, our logistic regression analysis indicates that an increase in circulating total adiponectin levels by 1 unit was associated with 36% lower CVD risk (relative risk [RR]: 0.64, 95% confidence interval [CI] 0.42 0.96; p = 0.03). Further adjusting for interleukin-6 plasma levels had no significant impact (RR: 0.60, 95% CI 0.38-0.94; p = 0.03), while additional adjustment for circulating C-reactive protein (CRP) modestly attenuated this association (RR: 0.63, 95% CI 0.40-0.99; p = 0.046). CONCLUSIONS: In our study, elevated circulating total adiponectin levels were associated with lower 10-year CVD risk in adults without previous CVD, independently of other established CVD risk factors. This association appeared to be modestly attenuated by CRP, yet was not mediated by interleukin-6 which is the main endocrine/circulating pro inflammatory cytokine. PMID- 29039146 TI - Estrogen-based hormone therapy in women with primary ovarian insufficiency: a systematic review. AB - PURPOSE: Sex hormones play a role in bone density, cardiovascular health, and wellbeing throughout reproductive lifespan. Women with primary ovarian insufficiency (POI) have lower estrogen levels requiring hormone therapy (HT) to manage symptoms and to protect against adverse long-term health outcomes. Yet, the effectiveness of HT in preventing adverse outcomes has not been systematically assessed. We summarize the evidence regarding effects of HT on bone and cardiovascular health in women with POI. METHODS: A comprehensive search of the electronic databases MEDLINE, EMBASE, and Scopus was conducted by a medical reference librarian from database inception to January 2016. Randomized trials and observational cohort studies with an estrogen-based HT intervention in women with POI under the age of 40 were included. Reviewers worked independently and in duplicate to assess eligibility and risk of bias, and extract data of interest from each study. RESULTS: The search identified 1670 articles; 12 met inclusion criteria. Four randomized clinical trials and eight cohort studies at high risk of bias enrolled 806 women with POI. The most common HT formulations were transdermal estradiol and oral conjugated equine estrogen combined with medroxyprogesterone acetate. Bone mineral density was the most frequent outcome, with three out of eight studies showing HT associated increase benefits. Only one study reported effects on fractures or vasomotor symptoms and none on cardiovascular mortality. Results regarding lipid profiles were inconsistent. CONCLUSIONS: Evidence supporting bone and cardiovascular benefits of HT in women with POI is limited by high risk of bias, reliance on surrogate outcomes, and heterogeneity of trials regarding the formulation, dose, route of administration, and regimen of HT. Further research addressing patient important outcomes such as fractures, stroke, and cardiovascular mortality are crucial to optimize benefits of this therapy. PMID- 29039148 TI - Untargeted Screening of Urinary Peptides Using Offline Nano-Liquid Chromatography: MALDI-TOF/TOF Mass Spectrometry. AB - In renal transplantation, the discovery of early urine biomarkers of graft lesions would be useful in helping physicians to improve patient care and minimize the use of invasive techniques such as biopsies. Over the last years, high-resolution mass spectrometry has been used extensively for the search of biomarkers in various biological fluids. Here we describe a procedure based on reverse-phase nano-HPLC, offline plate spotting, and MALDI-TOF and TOF/TOF applied in our laboratory for the search of natural peptides in urine samples from renal transplant patients. PMID- 29039147 TI - Heritability of Addison's disease and prevalence of associated autoimmunity in a cohort of 112,100 Swedish twins. AB - PURPOSE: The pathophysiology behind autoimmune Addison's disease (AAD) is poorly understood, and the relative influence of genetic and environmental factors remains unclear. In this study, we examined the heritability of AAD and explored disease-associated autoimmune comorbidity among Swedish twins. METHODS: A population-based longitudinal cohort of 112,100 Swedish twins was used to calculate the heritability of AAD, and to explore co-occurrence of 10 organ specific autoimmune disorders in twin pairs with AAD. Diagnoses were collected 1964-2012 through linkage to the Swedish National Patient Register. The Swedish Prescribed Drug Register was used for additional diagnostic precision. When available, biobank serum samples were used to ascertain the AAD diagnosis through identification of 21-hydroxylase autoantibodies. RESULTS: We identified 29 twins with AAD. Five out of nine (5/9) monozygotic pairs and zero out of fifteen (0/15) dizygotic pairs were concordant for AAD. The probandwise concordance for monozygotic twins was 0.71 (95% CI 0.40-0.90) and the heritability 0.97 (95% CI 0.88-99). Autoimmune disease patterns of monozygotic twin pairs affected by AAD displayed a higher degree of similarity than those of dizygotic twins, with an incidence rate ratio of 15 (95% CI 1.8-116) on the number of shared autoimmune diagnoses within pairs. CONCLUSIONS: The heritability of AAD appears to be very high, emphasizing the need for further research on the genetic etiology of the disease. Monozygotic twin concordance for multiple autoimmune manifestations suggests strong genetic influence on disease specificity in organ-specific autoimmunity. PMID- 29039149 TI - Mastalgia and associated factors: a cross-sectional study. AB - OBJECTIVES: Mastalgia is a common and painful experience among women. This study aimed to determine the prevalence of breast pain, characteristics of the pain, and factors associated with breast pain, particularly those that can be changed. METHODS: This cross-sectional study comprised women aged from 18 to 65 years. In total, 752 women were included. Risk factors for breast pain were determined using logistic regression analysis with the entry model, and the risk factors for periodic and non-periodic breast pain were assessed using logistic regression analysis with the backward model. RESULTS: Results revealed that the following were significant risk factors: age between 35 and 50 years (OR, 1.614; CI, 1110 2347), university graduate (OR, 3.207; CI, 1.874-5.490), BMI of >30 (OR, 2.068; CI, 1.163-3.674), excessive use of salt (OR, 1,687; CI, 1.075-2 .647), weight gain in the last 5 years (OR, 1.411; CI, 1018-1955), use of a small bra (OR, 3.260; CI, 2204-4821), and use of a large bra (OR, 1.896; CI, 1276-2817). CONCLUSION: Weight control, restriction of salt intake, and selection of a suitable brassiere are important for preventing and managing mastalgia. PMID- 29039150 TI - Anxiety, depression and coping behaviors with pain in cancer patients who are aware or unaware of their cancer. AB - OBJECTIVES: This study aimed to investigate whether there are differences in depression, anxiety, pain and styles of coping with pain between cancer patients with and without awareness of their cancer diagnosis. METHODS: In this study, 30 cancer patients aware of their diagnosis and 30 cancer patients unaware of their diagnosis, all of whom visited a clinic for pain treatment, were enrolled in this study. A sociodemographic information form, a questionnaire comprising questions about pain severity and related variables, Hospital Anxiety Depression Scale, and the Pain Coping Questionnaire were administered to the patients. RESULTS: No significant association was observed between the patients with awareness or unawareness of cancer with respect to anxiety, depression, pain severity, or coping with pain. Pain intensity was significantly associated with depression in both the patient groups. CONCLUSION: The study enrolled patients who were admitted for pain treatment, and the sampling group was small. However, this is the first study to investigate the effects of the awareness of cancer diagnosis on pain and its management. PMID- 29039151 TI - [Pain experience of nursing students and the methods used to cope with pain]. AB - OBJECTIVES: This study aimed to determine the pain experience of nursing students and the methods used to cope with it. METHODS: This descriptive study was conducted at the nursing department. Sampling was not used. The study was completed with 264 students. Data were collected using the questionnaire that was prepared by the researchers. Descriptive statistics and chi-square test were used for data analysis. RESULTS: Of all students, 76.1% (84.1%, females; 56.0%, males) who participated in this study had pain. The most experienced pain was headache (52.3%), stomachache (42.4%), and low back pain (33%); these were more prevalent in females than in males. The use of medication (42.9% in males and 47.8% in females) was higher than the other methods for pain treatment. Students who stayed in the dormitory were more likely to use drugs (58.5%), whereas those not staying in the dormitory were more likely to use non-drug methods (47.4%). Students who paid attention to feeding behavior used more medication (80%) than who did not pay attention (44.1%; p<0.05). CONCLUSION: Students were mostly applied to health institutions owing to pain, they used drugs for headache, and the pain affected their daily life activities and resulted in them being absent on school days. In conclusion, considering the adverse effects of medications, it is recommended that students should be informed regarding reliable traditional nonpharmacological methods for coping with pain and should be encouraged to use such methods. PMID- 29039152 TI - Evaluation of the neuropathic pain in the smokers. AB - OBJECTIVES: Nicotine addiction is one of the most important causes of the general failure of treatment and keeping the habit of smoking. Peripheral neuropathy is a leading factor of smoking. This study aimed to analyze the association of neuropathic pain and addiction levels of individuals. METHODS: The study was performed on the day on which the smokers visited the hospital for any reason. The Douleur Neuropathique 4 (DN-4) Scale and Fagerstrom Addiction Survey were administered to the individuals after obtaining their consent. RESULTS: In total, 444 individuals were included in the study, and 57.2% of them were males (n = 254). The age average of the individuals with neuropathic pain (46.4+/-12.3 years) was significantly higher than that of those without pain. The individuals with pain smoked approximately 31.8+/-18.3 packet/year cigarettes, whereas those without pain smoked approximately 22.4 +/- 15.5 packet/year cigarettes; the difference was significant statistically (p<0.05). According to multivariate logistic regression analysis with the backward elimination method, the existence of pain was found to be PR = 2.22 (95% GA, 1.26-3.91) in terms of sex, DM existence was found to be PR = 1.97 (95% GA, 1.02-3.81), and for each standard deviation increase (2.7) in Fagerstrom scale, PR was 1.29 (95% GA, 1.14-1.46). CONCLUSION: Smoking is a risk factor for neuropathic pain. In our study, the possibility of neuropathic pain increases as the duration of smoking and addiction level increase, and with diabetes, this rate increases even more. It is extremely important that the smokers should be informed regarding these facts and possibilities. PMID- 29039153 TI - Postoperative analgesia after arthroscopic shoulder surgery: A comparison between single-shot interscalene block and single-shot supraclavicular block. AB - OBJECTIVES: In arthroscopic rotator cuff surgery for postoperative analgesia opioids, nonsteroid analgesics, and local anesthetics can be used. This study aimed to compare the effectiveness, additional analgesic requirements, patients satisfaction, and complications of single-shot interscalene and supraclavicular blocks. METHODS: After obtaining the ethics committee's approval and informed consent, 50 ASA I-II patients were randomized to either the interscalene (GISB) or supraclavicular (GSCB) group. Preoperatively, patients received an ultrasonography-guided block using 30 ml of 0.5% bupivacaine. In the postoperative period, morphine patient-controlled analgesia was administered as a 0.3-mg/h basal dose and 1-mg bolus dose, with a 20-min lockout time. Postoperative visual analog scale (VAS; 0-10 cm) scores of the patients were evaluated at 4, 8, 12, and 24 h postoperatively; additional analgesic requirements, adverse effects, and complications were recorded. Patient satisfaction (PS) scores were evaluated after 24 h. RESULTS: VAS scores at 4 h were lower in the GSCB group than in the GISB group, and the VAS scores at 8, 12, and 24 h were lower in the GISB group than in the GSCB group, with no statistical significance. Additional analgesic requirements was 28% in the GISB group and 68% in the GSCB group (p < 0.05). Total morphine consumption was lower in the GISB group than in the GSCB group (18.95+/-9.2 mg vs. 30.6 +/- 9.6 mg; p < 0.001). PS scores were higher in the GISB group than in the GSCB group (7.0+/-1.0 vs. 6.1+/ 0.9; p < 0.01). Adverse effects and complication rates were similar in both the groups. In GISB group, seven patients (28%) had nausea/vomiting, whereas in the GSCB group, 12 patients (48%) had nausea/vomiting. This difference was statistically insignificant. CONCLUSION: Supraclavicular block can be considered as an alternative to interscalene block for arthroscopic shoulder surgery. PMID- 29039154 TI - Severe headache following ozone therapy: Pneumocephalus. AB - Pneumocephalus is defined as air in the cranial cavity. Pneumocephalus can result from inadvertent dural puncture during lumbar epidural anesthesia or epidural steroid injection. Presently described is case of 41-year-old woman who had undergone lumbar disc hernia operation but due to ongoing complaints, was diagnosed as having failed back surgery syndrome. Percutaneous epidural neuroplasty was performed. In the operating room, under sterile conditions and under sedoanalgesia, Racz catheter was inserted in caudal area and guided to epidural area with scope. In accordance with Madrid Declaration, 20 ug/mL concentration and 5 mL volume oxygen-ozone mixture was injected. After waiting 5 minutes, 0.25% bupivacaine + 80 mg triamcinolone + 1500 units hyaluronidase was administered through the catheter. After epidural neuroplasty procedure, when patient was taken to gurney, she complained of severe headache and nausea. Computed tomography scans of head were done immediately, and consistent with pneumocephalus, air was observed in right lateral ventricle frontal horn, interhemispheric fissure, and superior cerebellar cistern. Patient was placed in Trendelenburg position and intravenous fluid was replaced. Analgesics and bed rest were recommended as treatment. Patient was discharged from hospital on the second day. Within a week, headache pain and other complaints had resolved. In this article, the case of a failed back surgery patient who was postoperatively treated with medical ozone and experienced complication of pneumocephalus is discussed in context of literature data. PMID- 29039155 TI - Successful anesthetic management in axillo-axillary bypass surgery. AB - Axillo-axillary bypass grafting is considered the operation of choice for patients with subclavian steal syndrome. Anesthetic management of high-risk patients with coronary-subclavian steal syndrome presents safety and technical challenges. Presently described is case of chronic obstructive lung disease and coronary artery disease in a 52-year-old man who required axillo-axillary bypass surgery to treat stenosis at the origin of left subclavian artery. Successful anesthetic management was achieved for patient undergoing axillary-axillary bypass surgery using a cervical epidural technique. PMID- 29039156 TI - [Vertebrobasilar artery dolichoectesia and pain; coincidence or etiology?] AB - Dolichoectesia is described as elongation, widening, and tortuosity of an artery. Most commonly involved vessels are the intracranial vertebral and basilar arteries. Vertebrobasilar artery dolichoectesia is usually asymptomatic. Cerebral ischemia, hemorrhage, or compression findings due to mass effect can be seen in symptomatic patients. Although there are case reports of trigeminal neuralgia due to fifth cranial nerve compression in the literature, to the best of our knowledge, neither hemicranial nor continuous facial pain secondary to vertebrobasilar artery dolichoectesia has been reported previously. Presently described is case of a 42-year-old male with vertebrobasilar dolichoectesia who had complaint of continuous right-sided hemicranial pain, and his 19-year-old niece, who presented with continuous right-sided facial pain. PMID- 29039157 TI - [The anatomical variation to be considered in upper extremity blocks: double axillary vein]. PMID- 29039158 TI - Total spinal block, bupivacaine toxicity or else under epidural anaesthesia? PMID- 29039159 TI - Cortisol and migraine: A systematic literature review. AB - Migraine is a highly prevalent and disabling disorder. Because stress appears to be a prominent trigger of this condition and cortisol is a well-established stress hormone, we performed a search on Medline, Scopus, and Web of Science to identify clinical studies that assessed cortisol levels in migraineurs. Four cross-section studies, one observational study, and three both cross-sectional and observational studies were finally included in our analysis. The heterogeneity was modest for the sample size (49.8%) but was remarkably high for a sample matrix (66.0%), thus precluding the possibility to meta-analyze the data. In six of the seven cross-sectional studies, cortisol levels did not differ between the cases and controls. With regard to the four observational trials, both nitroglycerine and human corticotropin-releasing hormone but not m chlorophenylpiperazine were effective in generating a more prominent cortisol release in migraineurs than in controls. In a fourth observation trial, salivary cortisol did not differ during the migraine attack and during the migraine free period. In conclusion, even if altered corticotrope responsiveness exists in migraineurs, it appears to be irrelevant in the pathogenesis of migraine. PMID- 29039160 TI - Influenza vaccines for preventing acute otitis media in infants and children. AB - BACKGROUND: Acute otitis media (AOM) is one of the most common infectious diseases in children. It has been reported that 64% of infants have an episode of AOM by the age of six months and 86% by one year. Although most cases of AOM are due to bacterial infection, it is commonly triggered by a viral infection. In most children AOM is self limiting, but it does carry a risk of complications. Since antibiotic treatment increases the risk of antibiotic resistance, influenza vaccines might be an effective way of reducing this risk by preventing the development of AOM. OBJECTIVES: To assess the effectiveness of influenza vaccine in reducing the occurrence of acute otitis media in infants and children. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, CINAHL, LILACS, Web of Science, the WHO International Clinical Trials Registry Platform, and ClinicalTrials.gov (15 February 2017). We also searched the reference lists of included studies to identify any additional trials. SELECTION CRITERIA: Randomised controlled trials comparing influenza vaccine with placebo or no treatment in infants and children aged younger than six years. We included children of either sex and of any ethnicity, with or without a history of recurrent AOM. DATA COLLECTION AND ANALYSIS: Two review authors independently screened studies, assessed trial quality, and extracted data. We performed statistical analyses using the random-effects and fixed-effect models and expressed the results as risk ratio (RR), risk difference (RD), and number needed to treat for an additional beneficial outcome (NNTB) for dichotomous outcomes, with 95% confidence intervals (CI). MAIN RESULTS: We included 11 trials (6 trials in high-income countries and 5 multicentre trials in high-, middle-, and low-income countries) involving 17,123 children aged 6 months to 6 years. Eight trials recruited participants from a healthcare setting. Ten trials (and all four trials that contributed to the primary outcome) declared funding from vaccine manufacturers. Four trials reported adequate allocation concealment, and 10 trials reported adequate blinding of participants and personnel. Attrition was low for eight trials included in the analysis.The primary outcome showed a small reduction in at least one episode of AOM over at least six months of follow-up (4 trials, 3134 children; RR 0.84, 95% CI 0.69 to 1.02; RD -0.04, 95% CI -0.08 to -0.00; NNTB 25, 95% CI 12.5 to 100; low-quality evidence).The subgroup analyses (i.e. number of courses and types of vaccine administered) showed no differences.There was a reduction in the use of antibiotics in vaccinated children (2 trials, 1223 children; RR 0.70, 95% CI 0.59 to 0.83; RD -0.11, 95% CI -0.16 to -0.06; moderate-quality evidence).We were unable to demonstrate whether there was any difference in the utilisation of health care. The use of influenza vaccine resulted in a significant increase in fever (7 trials, 10,615 children; RR 1.15, 95% CI 1.06 to 1.24; RD 0.02, 95% CI 0.00 to 0.04; low-quality evidence), rhinorrhoea (6 trials, 10,563 children; RR 1.17, 95% CI 1.07 to 1.29; RD 0.09, 95% CI 0.01 to 0.16; low-quality evidence), but no difference in pharyngitis. No major adverse events were reported.Differing from the protocol, the original publication of the review included a subgroup analysis of AOM episodes by season, and the secondary outcome 'types of influenza vaccine' was changed to a subgroup analysis. For this update, we removed the subgroup analyses for trial setting, season, and utilisation of health care due to the small number of trials involved. We removed Belshe 2000 from primary and secondary outcomes (courses of vaccine and types of vaccine) because it reported episodes of AOM per person. We did not perform a subgroup analysis by type of adverse event. We have reported each type of adverse event as a separate analysis. AUTHORS' CONCLUSIONS: Influenza vaccine results in a small reduction in AOM. The observed reduction in the use of antibiotics needs to be considered in light of current recommended practices aimed at avoiding antibiotic overuse. Safety data from these trials were limited. The benefits may not justify the use of influenza vaccine without taking into account the vaccine efficacy in reducing influenza and safety data. We judged the quality of the evidence to be low to moderate. Additional research is needed. PMID- 29039162 TI - [Advances on prenatal diagnosis of birth defects associated with genetic disorders]. AB - Birth defects have become a major public health concern in the world, which can be resulted from the harmful environmental factors, genetic mutations or their co effects. Prenatal diagnosis or preimplantation diagnosis has been considered as the only effective way for the prevention of the birth of those defects. Besides karyotype analysis and fluorescence in situ hybridization, chromosomal microarray analysis and next generation sequencing or its derivatives are in common use. This article reviews the advances of the newly emerging molecular techniques in prenatal diagnosis of birth defects associated with genetic disorders. PMID- 29039163 TI - [Screening for amino acid metabolic disorders of newborns in Zhejiang province:prevalence, outcome and follow-up]. AB - OBJECTIVE: To analyze the result and follow-up data of screening for newborn amino acid metabolic disorders in Zhejiang province. METHODS: A total of 1 861 262 newborns were screened for amino acid metabolic disorders during January 2009 and December 2016 in Zhejiang province. The screening results and the follow-up data were analyzed retrospectively. RESULTS: One hundred and sixty four cases were diagnosed as amino acid metabolic disorders with a prevalence of 1:11 349, including 83 with hyperphenylalaninaemia (1:22 400), 29 with neonatal intrahepatic cholestasis caused by citrin deficiency (1:64 138), 16 with methionine S-adenosyltransferase deficiency (1:116 250), 9 with maple syrup urine disease (1:206 667), 8 with argininemia (1:232 500), 7 with citrullinemia type I (1:265 700), 6 with hyperprolinemia type I (1:310 000), and 2 with carbamylphosphate synthetase I deficiency(1:930 000). In addition, ornithine transcarbamylase deficiency, cystathionine beta-synthase deficiency, argininosucoinate aciduria and tyrosinemia type I were detected in one patient for each, respectively. Two patients had developmental delay, 7 patients were dead, and 2 cases of maple syrup urine disease were lost to follow-up. CONCLUSIONS: Hyperphenylalaninaemia is the most common amino acid metabolic disease in newborns in Zhejiang province. Patients with amino acid metabolic disorders identified in newborn screening program can have chance for normal growth development by intervention. PMID- 29039164 TI - [Screening for newborn organic aciduria in Zhejiang province:prevalence, outcome and follow-up]. AB - OBJECTIVE: To analyze the results and follow up data of screening for newborn organic aciduria in Zhejiang province. METHODS: The results and follow-up data of 1 861 262 newborns from Zhejiang province undergoing screening for organic aciduria during January 2009 and December 2016 were retrospectively analyzed. The acylcarnitine spectrum in urine samples was detected by tandem mass spectrum (MS/MS) and the positive patients were confirmed by urine gas chromatography mass spectrometry and/or gene analysis. RESULTS: Ninety two cases of organic aciduria were confirmed with a prevalence of 1:20 200. Among 40 cases of methylmalonic academia (MMA), 13 (32.5%) were of MMA simple type and 27 (67.5%) were combined type. Genetic analysis showed 6 cases of MUT type and 1 case of CblB type out of 7 patients with MMA simple type, 10 cases of CblC and 1 case of CblF out of 11 patients with combined type, respectively. Six patients had propionic academia with a prevalence of 1:310 200, 7 had isovaleric academia (1:265 900), 6 had glutaric academia type 1 (1:310 200), 27 had 3-methylcrotonyl-CoA carboxylase deficiency (MCC, 1:68 900), 1 had 3-hydroxy-3-methylglutaric aciduria (1:1 861 300), 2 had beta-ketothiolase deficiency (1:960 600), and 3 had biotinidase deficiency/holocarboxylase synthetase deficiency (1:620 400). Thirty-one patients had a disease onset at neonatal period, and 15 at post-neonatal period. Thirty three patients had brain involvements or cranial imaging disorders. Three patients with MMA had kidney diseases or heomlytic uremic syndrome, and 3 had myocardial impairments. Twenty patients died during the follow-up. CONCLUSIONS: MMA is the most common newborn organic aciduria in Zhejiang province. Except MCC, most organic aciduria may lead to metabolism decompensation, complications or even death. PMID- 29039165 TI - [Screening for fatty acid oxidation disorders of newborns in Zhejiang province:prevalence, outcome and follow-up]. AB - OBJECTIVE: To screen fatty acid oxidation disorders (FAOD) in newborns in Zhejiang province. METHODS: A total of 1 861 262 newborns were screened for FAOD in Neonatal Screening Center of Zhejiang Province during January 2009 and December 2016. The blood samples from newborns were screened by tandem mass spectrometry, and diagnosis of FAOD was confirmed by urine organic acid measurement combined with genetic analysis. The prognosis and follow-up of patients with FAOD were also evaluated. RESULTS: Of 1 861 262 newborns screened, 121 cases of FAOD were diagnosed. Among 121 cases of FAOD, primary carnitine deficiency (PCD) was the most common type (n=78, 64.5%), which was followed by short-chain acyl-CoA dehydrogenase deficiency (SCADD, n=27, 22.3%), medium-chain acyl-CoA dehydrogenase deficiency (n=5, 4.1%), multiple acyl-CoA dehydrogenase deficiency (MADD, n=4, 3.3%), very long-chain acyl-CoA dehydrogenase deficiency (n=3, 2.5%), carnitine palmitoyltransferase I deficiency(n=2, 1.7%)and carnitine palmitoyltransferase II deficiency (CPTIID, n=2, 1.7%). During 2-82 month follow up, 15 patients were lost, 4 were dead (1 PCD, 1 MADD, and 2 CPTIID), and the remaining 102 subjects had normal intelligence and physical development without any clinical symptoms. CONCLUSIONS: PCD and SCADD are the most common FAODs in newborns in Zhejiang province. Most of FAOD patients are asymptomatic, and have normal growth and development after early intervention and management. PMID- 29039166 TI - [Detection of cell-free fetal DNA in maternal plasma for noninvasive prenatal screening of fetal chromosomal aneuploidies in women of advanced maternal age]. AB - OBJECTIVE: To evaluate the efficiency of cell-free fetal DNA detection as a non invasive prenatal screening (NIPS) method for women of advanced maternal age. METHODS: A total of 10 584 women of advanced maternal age who received NIPS were recruited from the Women's Hospital, Zhejiang University School of Medicine and Jiaxing Maternal and Child Health Hospital during February 2015 and September 2016. The pregnancy outcome was followed-up. The sensitivity, specificity, positive and negative predictive value of fetal chromosomal aneuploidy detected in NIPS were analyzed. And the relationship between maternal age and fetal common chromosomal aneuploidy was analyzed. RESULTS: The sensitivity, specificity, positive and negative predictive value of NIPS were 100.00%, 99.96%, 91.67%, 100.00% for trisomy 21, 100.00%, 99.93%, 68.18%, 100.00% for trisomy 18, and 100.00%, 99.97%, 25.00%, 100.00% for trisomy 13. High-risk rate and true positive rate of trisomy 21 were positively correlated with the maternal age (all P<0.01). There were significant differences in high-risk rate and true positive rate between 35-37 year old groups and 38-40 year old groups (all P<0.05). Such difference was also found in high-risk rate between 38-40 year old group and >= 41 year old group (P<0.05), but not in true positive rate between two groups (P>0.05). CONCLUSIONS: NIPS is effective for fetal chromosomal aneuploidy screening in women of advanced maternal age. For women under 38 years of age, NIPS is preferred; for women of 41 and above, invasive diagnostic methods are suggested; and for women between 38-41 years old, the option can be determined by themselves after risks and advantages were fully informed. PMID- 29039167 TI - [Single nucleotide polymorphism-array in genetic analysis of chorionic villi from early spontaneous miscarriages]. AB - OBJECTIVE: To assess the clinical application of single nucleotide polymorphism (SNP)-array in detecting abnormal chromosome karyotypes of chorionic villi from early spontaneous abortuses. METHODS: A total of 861 chorionic villus samples from unexplained early spontaneous abortion were collected from Women's Hospital, Zhejiang University School of Medicine during October 2013 and June 2016, and SNP array was performed to detect genome-wide DNA copy number variants. RESULTS: All samples were successfully tested by SNP-array and 440 cases (51.10%) were found to have abnormal chromosome constitutions. Aneuploidy was identified in 358 (41.58%) cases, distributing in all chromosomes except chromosome 1. Triploidy and haploidy were found in 21 (2.44%) and one case (0.12%), respectively. Thirty seven cases (4.30%) were identified as single chromosomal segment deletion or duplication, 25 of which were less than 10 Mb in size. For 6 of 25 cases with unclear pathogenesis, family studies were carried out to identify origin of deletion or duplication, showing that 4 cases were de novo and 2 were inherited from one of the parents. Twenty-three cases (2.67%) showed two chromosomal deletion/duplication segments. Combining with karyotyping and fluorescence in situ hybridization, 6 cases were identified as de novo aberration and 11 carried small-size segmental balanced abnormality. CONCLUSIONS: SNP-array can provide a relatively comprehensive genetic analysis of chorionic villi and can detect various kinds of chromosome abnormalities in spontaneous miscarriages. PMID- 29039168 TI - [Maternal serum alpha fetoprotein and free beta-hCG of second trimester for screening of fetal gastroschisis and omphalocele]. AB - OBJECTIVE: To assess the detection of maternal serum alpha fetoprotein (MSAFP) and free beta-HCG levels of second trimester for screening of fetal gastroschisis and omphalocele. METHODS: Clinical data of 622 639 pregnant women from 5 prenatal screening centers in Hangzhou during October 2007 and September 2016 were analyzed retrospectively. Thirty cases of gastroschisis and 30 cases of omphalocele diagnosed by ultrasonography and postmortem findings were enrolled in the study and 116 cases of pregnant women with normal fetal development during the same period were selected as control group. The cut-off value and area under ROC curve (AUC) of MSAFP and free beta-hCG for diagnosis of fetal gastroschisis and omphalocel were analyzed. RESULTS: MSAFP levels of women with fetal gastroschisis and omphalocele were 4.41 (0.88-11.69) MOM and 2.31 (0.72-23.20) MOM, which were significantly higher than that of control group[0.98 (0.41-2.26) MOM, all P<0.01]. Free beta-hCG level of women with fetal gastroschisis was 1.25 (0.35-19.94) MOM, which was significantly higher than that of control group[0.86 (0.17-6.11) MOM, P<0.05). But there were no significant difference in free beta hCG between fetal omphalocele group[1.03(0.21-8.95)]and control group (P>0.05). The AUCs of MSAFP for diagnosis of gastroschisis and omphalocele were 0.897 (95% CI:0.822-0.972) and 0.852(95% CI:0.762-0.942), respectively (all P<0.01). Taking 1.655 MOM as the cut-off value of MSAFP for abdominal wall defects (gastroschisis and omphalocele), the sensitivity was 68.30%, specificity was 99.60% and Youden index was 0.649. CONCLUSIONS: MSAFP of second trimester is a better biomarker than free beta-hCG in screening abdominal wall defects. PMID- 29039169 TI - [Prenatal diagnosis of Joubert syndrome:one case report and literature review]. AB - A 25-year-old nulliparity underwent prenatal ultrasonography, and the fetal cerebellar abnormality was suspected. The fetal MRI showed 'molar tooth sign' in midbrain and cerebellar vermis hypoplasia. The fetal cerebellar vermis hypoplasia was confirmed by MRI imaging and autopsy after induced abortion. The next generation sequencing showed that the fetus had a heterozygous mutation of CC2D2A gene (c.2728C > T and c.4598T > C), which might be the cause of the disease. PMID- 29039170 TI - [Research progress on the safety of offsprings conceived by assisted reproductive technology]. AB - Assisted reproductive technology (ART) employs superovulation, in vitro culture and other micromanipulation to complete oocyte maturation, fertilization and early embryo development. Although these techniques have been successfully applied to solve infertility problems, the process may interfere in cell proliferation, differentiation and growth. The clinical and laboratory studies on the safety issue of ART are reviewed in this article. Studies found that the incidence of birth defects increased in ART offspring. Superovulation, in vitro culture and intracytoplasmic sperm injection may induce epigenetic aberrations during embryo development, which would influence the development of ART conceived children. The epigenetic susceptibility related to ART might be transmitted to subsequent generations, and the potential impact on ART offspring still need further investigation. In addition, ART treatments may also increase the risk of genetic diseases. PMID- 29039171 TI - [Correlation of fetuin-B concentrations in serum and follicular fluid with outcomes of in vitro fertilization]. AB - OBJECTIVE: To investigate the relationship between serum/follicular fluid fetuin B levels and outcome of in vitro fertilization (IVF). METHODS: Infertility women (28 with low fertilization rates, 44 with normal fertilization rates) receiving IVF in Women's Hospital of Zhejiang University School of Medicine during June and December 2016 were enrolled in the study. Serum/follicular fluid fetuin B levels were measured with ELISA method. Correlations of serum and follicular fetuin B level with fertilization outcome of IVF were analyzed with Pearson correlation coefficient and receiver operating characteristic (ROC) curve. RESULTS: A positive correlation between serum fetuin B and follicular fluid fetuin B levels was observed (r=0.675, P<0.01). Both serum and follicular fluid fetuin B levels in women with low fertilization rates of IVF were lower than those in women with normal fertilization rates[(6.09+/-1.31) MUg/mL vs. (7.13+/-1.47) MUg/mL, t=3.050, P<0.05; (5.13+/-0.96)MUg/mL vs. (6.22+/-1.33) MUg/mL, t=3.755, P<0.01]. ROC analysis showed that the area under curve (AUC) of serum fetuin B level in predicting fertilization rate was 0.832 (95% CI:0.729-0.934, P<0.01), and 6.08 MUg/mL could be used as cut-off value. CONCLUSIONS: Serum fetuin B level is correlated with follicular fluid fetuin B level, and it may be used for predicting the fertilization outcome of IVF. PMID- 29039172 TI - [Effect of oxygen concentration on outcome of in-vitro fertilization-embryo transfer]. AB - OBJECTIVE: To investigate the effect of low and high oxygen concentration on embryo development, pregnancy outcome and birth defects of in vitro fertilization embryo transfer (IVF-ET). METHODS: According to the oxygen concentration of in vitro culture environment, the IVF-ET performed in the Women's Hospital, Zhejiang University School of Medicine during 2013 and 2015 were divided into low oxygen concentration group (n=2036, 5% O2) and high oxygen concentration group (n=4617, 20% O2). The rate of fertilization, good quality embryo, clinical pregnancy, ectopic pregnancy, abortion and birth defect were compared between two groups. RESULTS: The good quality embryo rate was significantly higher in the low oxygen concentration group (P<0.05). However, no significant differences were found between two groups in the rate of fertilization, clinical pregnancy, ectopic pregnancy, abortion and birth defect (all P>0.05). CONCLUSIONS: Low oxygen environment may improve the potential of embryonic development, but its impact on pregnancy outcome and birth defect is not significant. PMID- 29039173 TI - [Effects of embryo cryopreservation and thawing on clinical outcomes of transplantable embryos after cleavage-stage preimplantation genetic diagnosis or screening]. AB - OBJECTIVE: To investigate the effects of embryo cryopreservation and thawing on clinical outcomes of transplantable embryos after preimplantation genetic diagnosis (PGD) or preimplantation genetic screening (PGS) in cleavage-stage. METHODS: The clinical data of 302 cases (including 118 cases using frozen/thawing embryos and 184 cases using fresh embryos) undergoing PGD/PGS in Women's Hospital, Zhejiang University School of Medicine during January 2011 and December 2016 were retrospectively analyzed. The pregnancy rate, implantation rate, live birth rate and abortion rate of fresh and frozen-thawed embryo transfer (FET) cycles were compared. And the influencing factors for pregnancy outcome was analyzed by multivariate logistic regression. RESULTS: The rate of normal or balanced translocation embryos in fresh cycle was higher than that in FET cycle (23.52% vs 16.67%, P<0.05), and the average number of transplanted embryos was more than that in FET cycle (1.54+/-0.56 vs 1.33+/-0.51, P<0.05). But there were no significant differences in pregnancy rate (36.42% vs 40.00%, P>0.05), implantation rate (26.62% vs 32.91%, P>0.05), abortion rate (19.44% vs 8.33%, P>0.05) and live birth rate (25.96% vs 28.33%, P>0.05) between fresh cycle and FET cycle. Multivariate logistic regression showed that, parent ages, embryo status (fresh or frozen), the mode of PGD/PGS and the findings of PGD/PGS had no impact on pregnancy outcome (all P>0.05). CONCLUSIONS: Cryopreservation do not have significant effects on the clinical outcomes of transplantable embryos after PGD/PGS in cleavage-stage. PMID- 29039174 TI - [Long-term effects of polycystic ovary syndrome on the offspring]. AB - Polycystic ovary syndrome (PCOS) is an endocrine disorder with reproductive dysfunction and abnormal metabolic syndrome. However, its etiology is unknown yet. Androgen hypersecretion is one of the main features of PCOS. It has been found that PCOS has various effects on the offspring in reproductive, metabolic and nervous systems, including:increasing secretion of gonadotropin-releasing hormone and luteinizing hormone, ovarian morphological changes and abnormal secretion of sex hormones, leading to disorders of lipid and glucose metabolism, and increasing the risks of depression and autism. However, there is still lack of direct evidence, and more studies should be conducted on the underlying mechanism in future. PMID- 29039175 TI - [Comparison of limus-eluting stent with paclitaxel-eluting stent for patients with coronary small vessel disease:a systematic review and meta-analysis]. AB - OBJECTIVE: To compare the efficacy of limus-eluting stent (LES) with paclitaxel eluting stent (PES) for patients with coronary small vessel disease. METHODS: The studies of LES and PES used for patients with coronary small vessel disease were searched in PubMed, Web of Science, ClinicalTrials, SinoMed, CNKI, Wanfang data and CQVIP. The relative risk (RR) estimates with 95% confidence intervals and other statistical variables were calculated with Stata 14.0, and the meta analysis was performed with RevMan 5.2. RESULTS: Eight studies involving 4738 patients were included in the meta-analysis. Compared with PES, LES implantation was associated with significant reduction in major adverse cardiovascular events (RR=0.64, 95% CI:0.53-0.77, Z=4.59, P<0.01), myocardial infarction (RR=0.61, 95% CI:0.45-0.82; Z=3.24, P<0.01), stent thrombosis (RR=0.22, 95% CI:0.13-0.37, Z=5.71, P<0.01), and target lesion revascularization (RR=0.56, 95% CI:0.44-0.71, Z=4.72, P<0.01), while no difference was observed in cardiac death (RR=1.08, 95% CI:0.62-1.88, Z=0.26, P>0.05) and target vessel revascularization(RR=0.80, 95% CI:0.45-1.44, Z=0.74, P>0.05). CONCLUSIONS: LES has better efficacy than PES for patients with coronary small vessel disease, which may be the preferred stents for these patients. PMID- 29039176 TI - [Research progress on the relationship of brown adipose tissue with polycystic ovary syndrome]. AB - Brown adipose tissue (BAT) holds great promise for the prevention and treatment of metabolism diseases through thermoregulation. Polycystic ovary syndrome (PCOS) is a complex condition with anovulation, hyperandrogenism, and polycystic ovaries, and also manifests glucolipid metabolic disorders. Recent researches have shown that transplantation of BAT into a PCOS rat could significantly alleviate the phenotypes. This article reviews the role of BAT in pathogenesis of PCOS, which may provide information for prevention and treatment of PCOS. PMID- 29039177 TI - [The involvement of galectin-1 in implantation and pregnancy maintenance at the maternal-fetal interface]. AB - As a member of galectins family, galectin-1(Gal-1)is widely expressed in tissues and cells, and participates in a variety of physiological and pathological processes, such as cell adhesion, proliferation, apoptosis and inflammatory reaction. Recently, it has been found that Gal-1 is highly expressed at the maternal-fetal interface and plays important roles in trophoblast cell proliferation, differentiation and invasion, endometrial receptivity, placental angiogenesis and maternal-fetal immune tolerance. In this review, we outline the expression of Gal-1 at the maternal-fetal interface and the involvement of Gal-1 in embryo implantation and pregnancy maintenance, to provide novel insights for the early diagnosis, prognostic assessment and treatment of early pregnancy loss and pregnancy-related diseases. PMID- 29039178 TI - [Potential clinical application of Kisspeptin in reproductive endocrinology]. AB - Gonadotropin-releasing hormone (GnRH) plays an important role in the process of reproduction. Studies have shown that a family of peptides Kisspeptin can act on GnRH-related neurons, stimulating the secretion of GnRH, and activating the hypothalamic-pituitary-gonadal axis. Both animal experiments and clinical studies have shown that exogenous administration of Kisspeptin is able to induce physiological GnRH release in healthy individuals and those with endocrine disorders, which brings great hope for treatment of reproductive endocrine diseases. The effect of Kisspeptin is similar to the physiological process in induction of ovulation and ovum maturation, leading to high security and efficiency for women receiving in vitro fertilization. Kisspeptin is involved in trophoblast invasion, so it may be useful for predicting pregnancy outcomes. In addition, Kisspeptin is the key hormone in the onset of puberty acting as a signal transducer in metabolism and reproduction, so it provides some directions for studies of polycystic ovary syndrome, hyperprolactinemia, and other metabolic related reproductive endocrine diseases. This article reviews the character of Kisspeptin and the prospect of its application in treatment of reproductive endocrine diseases. PMID- 29039179 TI - [Advances in the application of high-throughput sequencing in clinical genetics]. PMID- 29039180 TI - Heart Failure and Long-Term Survival Among Older Women With Breast Cancer AB - Objectives: To evaluate the association between heart failure and overall survival up to 10 years after breast cancer diagnosis. Sample & Setting: Women aged 65 years or older diagnosed with invasive breast cancer, with and without self-reported heart failure, were examined for this retrospective cohort study using Surveillance, Epidemiology, and End Results cancer registries in the United States. Methods & Variables: Cox proportional hazards regression was used to examine the association between heart failure status and mortality, adjusting for comorbidity and other clinical or sociodemographic differences. Associations were examined overall and stratified by cancer stage. Results: In adjusted models, having heart failure was associated with increased likelihood of death up to 10 years after cancer diagnosis. In adjusted subanalyses by cancer stage, heart failure was associated with increased likelihood of death up to 10 years after cancer diagnosis in women with stage I or II cancer but not in women with stage III/IV cancer. Implications for Nursing: Although early-stage breast cancer is generally associated with better prognosis, the competing mortality risk of heart failure was greater for this group than for women with advanced cancer. Prevention and management of cardiovascular disease should be prioritized for this patient subgroup. PMID- 29039181 TI - Comparisons of Airborne Measurements and Inventory Estimates of Methane Emissions in the Alberta Upstream Oil and Gas Sector. AB - Airborne measurements of methane emissions from oil and gas infrastructure were completed over two regions of Alberta, Canada. These top-down measurements were directly compared with region-specific bottom-up inventories that utilized current industry-reported flaring and venting volumes (reported data) and quantitative estimates of unreported venting and fugitive sources. For the 50 * 50 km measurement region near Red Deer, characterized by natural gas and light oil production, measured methane fluxes were more than 17 times greater than that derived from directly reported data but consistent with our region-specific bottom-up inventory-based estimate. For the 60 * 60 km measurement region near Lloydminster, characterized by significant cold heavy oil production with sand (CHOPS), airborne measured methane fluxes were five times greater than directly reported emissions from venting and flaring and four times greater than our region-specific bottom up inventory-based estimate. Extended across Alberta, our results suggest that reported venting emissions in Alberta should be 2.5 +/- 0.5 times higher, and total methane emissions from the upstream oil and gas sector (excluding mined oil sands) are likely at least 25-50% greater than current government estimates. Successful mitigation efforts in the Red Deer region will need to focus on the >90% of methane emissions currently unmeasured or unreported. PMID- 29039182 TI - Chiral Nanographene Propeller Embedding Six Enantiomerically Stable [5]Helicene Units. AB - A one-step synthesis of a nanographene propeller with a D3-symmetry was obtained starting from 7,8-dibromo[5]helicene by Yamamoto nickel(0) couplings. It afforded a chiral polyaromatic hydrocarbon (PAH) embedding six enantiomerically stable [5]helicene units. This dense accumulation of helical strain resulted in a distorted geometry, but stable stereochemistry. The conformational, structural, chiroptical, and photophysical properties of the molecule are reported. PMID- 29039183 TI - Electrochemically Generated cis-Carboxylato-Coordinated Iron(IV) Oxo Acid-Base Congeners as Promiscuous Oxidants of Water Pollutants. AB - The nonheme iron(IV) oxo complex [FeIV(O)(tpenaH)]2+ and its conjugate base [FeIV(O)(tpena)]+ [tpena- = N,N,N'-tris(2-pyridylmethyl)ethylenediamine-N' acetate] have been prepared electrochemically in water by bulk electrolysis of solutions prepared from [FeIII2(MU-O)(tpenaH)2](ClO4)4 at potentials over 1.3 V (vs NHE) using inexpensive and commercially available carbon-based electrodes. Once generated, these iron(IV) oxo complexes persist at room temperature for minutes to half an hour over a wide range of pH values. They are capable of rapidly decomposing aliphatic and aromatic alcohols, alkanes, formic acid, phenols, and the xanthene dye rhodamine B. The oxidation of formic acid to carbon dioxide demonstrates the capacity for total mineralization of organic compounds. A radical hydrogen-atom-abstraction mechanism is proposed with a reactivity profile for the series that is reminiscent of oxidations by the hydroxyl radical. Facile regeneration of [FeIV(O)(tpenaH)]2+/ [FeIV(O)(tpena)]+ and catalytic turnover in the oxidation of cyclohexanol under continuous electrolysis demonstrates the potential of the application of [FeIII(tpena)]2+ as an electrocatalyst. The promiscuity of the electrochemically generated iron(IV) oxo complexes, in terms of the broad range of substrates examined, represents an important step toward the goal of cost-effective electrocatalytic water purification. PMID- 29039184 TI - Single Walled Carbon Nanotube Based Air Pocket Encapsulated Ultraviolet Sensor. AB - Carbon nanotube (CNT) is a promising candidate as a sensor material for the sensitive detection of gases/vapors, biomarkers, and even some radiation, as all these external variables affect the resistance and other properties of nanotubes, which forms the basis for sensing. Ultraviolet (UV) radiation does not impact the nanotube properties given the substantial mismatch of bandgaps and therefore, CNTs have never been considered for UV sensing, unlike the popular ZnO and other oxide nanwires. It is well-known that UV assists the adsorption/desorption characteristics of oxygen on carbon nanotubes, which changes the nanotube resistance. Here, we demonstrate a novel sensor structure encapsulated with an air pocket, where the confined air is responsible for the UV sensing mechanism and assures sensor stability and repeatability over time. In addition to the protection from any contamination, the air pocket encapsulated sensor offers negligible baseline drift and fast recovery compared to previously reported sensors. The air pocket isolated from the outside environment can act as a stationary oxygen reservoir, resulting in consistent sensor characteristics. Furthermore, this sensor can be used even in liquid environments. PMID- 29039185 TI - Fabrication of Lanthanum Strontium Cobalt Ferrite-Gadolinium-Doped Ceria Composite Cathodes Using a Low-Price Inkjet Printer. AB - In this work, we have successfully fabricated lanthanum strontium cobalt ferrite (LSCF)-gadolinium-doped ceria (GDC) composite cathodes by inkjet printing and demonstrated their functioning in solid oxide fuel cells (SOFCs). The cathodes are printed using a low-cost HP inkjet printer, and the LSCF and GDC source inks are synthesized with fluidic properties optimum for inkjet printing. The composition and microstructure of the LSCF and GDC layers are successfully controlled by controlling the color level in the printed images and the number of printing cycles, respectively. Anode-support type SOFCs with optimized LSCF-GDC composite cathodes synthesized by our inkjet printing method have achieved a power output of over 570 mW cm-2 at 650 degrees C, which is comparable to the performance of a commercial SOFC stack. Electrochemical impedance analysis is carried out to establish a relationship between the cell performance and the compositional and structural characteristics of the printed LSCF-GDC composite cathodes. PMID- 29039186 TI - Liquid-Solid Dual-Gate Organic Transistors with Tunable Threshold Voltage for Cell Sensing. AB - Liquid electrolyte-gated organic field effect transistors and organic electrochemical transistors have recently emerged as powerful technology platforms for sensing and simulation of living cells and organisms. For such applications, the transistors are operated at a gate voltage around or below 0.3 V because prolonged application of a higher voltage bias can lead to membrane rupturing and cell death. This constraint often prevents the operation of the transistors at their maximum transconductance or most sensitive regime. Here, we exploit a solid-liquid dual-gate organic transistor structure, where the threshold voltage of the liquid-gated conduction channel is controlled by an additional gate that is separated from the channel by a metal-oxide gate dielectric. With this design, the threshold voltage of the "sensing channel" can be linearly tuned in a voltage window exceeding 0.4 V. We have demonstrated that the dual-gate structure enables a much better sensor response to the detachment of human mesenchymal stem cells. In general, the capability of tuning the optimal sensing bias will not only improve the device performance but also broaden the material selection for cell-based organic bioelectronics. PMID- 29039187 TI - Abiotic Conversion of Extracellular NH2OH Contributes to N2O Emission during Ammonia Oxidation. AB - Abiotic processes involving the reactive ammonia-oxidation intermediates nitric oxide (NO) or hydroxylamine (NH2OH) for N2O production have been indicated recently. The latter process would require the availability of substantial amounts of free NH2OH for chemical reactions during ammonia (NH3) oxidation, but little is known about extracellular NH2OH formation by the different clades of ammonia-oxidizing microbes. Here we determined extracellular NH2OH concentrations in culture media of several ammonia-oxidizing bacteria (AOB) and archaea (AOA), as well as one complete ammonia oxidizer (comammox) enrichment (Ca. Nitrospira inopinata) during incubation under standard cultivation conditions. NH2OH was measurable in the incubation media of Nitrosomonas europaea, Nitrosospira multiformis, Nitrososphaera gargensis, and Ca. Nitrosotenuis uzonensis, but not in media of the other tested AOB and AOA. NH2OH was also formed by the comammox enrichment during NH3 oxidation. This enrichment exhibited the largest NH2OH:final product ratio (1.92%), followed by N. multiformis (0.56%) and N. gargensis (0.46%). The maximum proportions of NH4+ converted to N2O via extracellular NH2OH during incubation, estimated on the basis of NH2OH abiotic conversion rates, were 0.12%, 0.08%, and 0.14% for AOB, AOA, and Ca. Nitrospira inopinata, respectively, and were consistent with published NH4+:N2O conversion ratios for AOB and AOA. PMID- 29039188 TI - Updated Polychlorinated Biphenyl Mass Budget for Lake Michigan. AB - This study revisits and updates the Lake Michigan Mass Balance Project (LMMBP) for polychlorinated biphenyls (PCBs) that was conducted in 1994-1995. This work uses recent concentrations of PCBs in tributary and open lake water, air, and sediment to calculate an updated mass budget. Five of the 11 LMMBP tributaries were revisited in 2015. In these five tributaries, the geometric mean concentrations of ?PCBs (sum of 85 congeners) ranged from 1.52 to 22.4 ng L-1. The highest concentrations of PCBs were generally found in the Lower Fox River and in the Indiana Harbor and Ship Canal. The input flows of ?PCBs from wet deposition, dry deposition, tributary loading, and air to water exchange, and the output flows due to sediment burial, volatilization from water to air, and transport to Lake Huron and through the Chicago Diversion were calculated, as well as flows related to the internal processes of settling, resuspension, and sediment-water diffusion. The net transfer of ?PCBs is 1240 +/- 531 kg yr-1 out of the lake. This net transfer is 46% lower than that estimated in 1994-1995. PCB concentrations in most matrices in the lake are decreasing, which drove the decline of all the individual input and output flows. Atmospheric deposition has become negligible, while volatilization from the water surface is still a major route of loss, releasing PCBs from the lake into the air. Large masses of PCBs remain in the water column and surface sediments and are likely to contribute to the future efflux of PCBs from the lake to the air. PMID- 29039189 TI - Composing RNA Nanostructures from a Syntax of RNA Structural Modules. AB - Natural stable RNAs fold and assemble into complex three-dimensional architectures by relying on the hierarchical formation of intricate, recurrent networks of noncovalent tertiary interactions. These sequence-dependent networks specify RNA structural modules enabling orientational and topological control of helical struts to form larger self-folding domains. Borrowing concepts from linguistics, we defined an extended structural syntax of RNA modules for programming RNA strands to assemble into complex, responsive nanostructures under both thermodynamic and kinetic control. Based on this syntax, various RNA building blocks promote the multimolecular assembly of objects with well-defined three-dimensional shapes as well as the isothermal folding of long RNAs into complex single-stranded nanostructures during transcription. This work offers a glimpse of the limitless potential of RNA as an informational medium for designing programmable and functional nanomaterials useful for synthetic biology, nanomedicine, and nanotechnology. PMID- 29039190 TI - Palladium-Catalyzed Diastereoselective Synthesis of 3-Arylbutanoic Acid Derivatives. AB - The first palladium-catalyzed diastereoselective conjugate addition of arylboronic acids to chiral imides is reported. The catalytic system employing 4 tert-butyloxazolidin-2-one as the chiral auxiliary in a mixed solvent system of MeOH/H2O (1:3) under an air atmosphere provides the optically active 3 arylbutanoic acid derivatives in excellent yields with high diastereoselectivity. PMID- 29039191 TI - Separation of 300 and 100 nm Particles in Fabry-Perot Acoustofluidic Resonators. AB - Separation of particles on the order of 100 nm with acoustophoresis has been challenging to date because of the competing natures of the acoustic radiation force and acoustic streaming on the particles. In this work, we present a surface acoustic wave (SAW)-based device that integrates a Fabry-Perot type acoustic resonator into a microfluidic channel to separate submicrometer particles. This configuration enhances the overall acoustic radiation force on the particles and thereby offers controlled manipulation of particles as small as 300 nm. Additionally, SAW-based excitation generates high-frequency acoustic waves in the system relative to bulk acoustic wave (BAW)-based actuation, which suppresses Rayleigh streaming effects on the submicrometer particles. We demonstrate a continuous-flow acoustophoretic separation of 300 and 100 nm particles in our device with a separation efficiency of 86.3%. We also present an analytical stochastic method to model the transport of submicrometer particles in the device and predict the migration trajectories as a function of acoustic and velocity potential field strengths. Our model incorporates particle diffusion, which is important for small particles, and successfully predicts the size-dependent separation modality of our system. This device can be used for several applications in microfluidics that require sorting of the submicrometer particles, and the analytical method can also be extended to predict the particle transport in other systems. PMID- 29039192 TI - Changes in Glucose Fermentation Pathways as a Response to the Free Ammonia Concentration in Microbial Electrolysis Cells. AB - When a mixed-culture microbial electrolysis cell (MEC) is fed with a fermentable substrate, such as glucose, a significant fraction of the substrate's electrons ends up as methane (CH4) through hydrogenotrophic methanogenesis, an outcome that is undesired. Here, we show that free ammonia-nitrogen (FAN, which is NH3) altered the glucose fermentation pathways in batch MECs, minimizing the production of H2, the "fuel" for hydrogenotrophic methanogens. Consequently, the Coulombic efficiency (CE) increased: 57% for 0.02 g of FAN/L of fed-MEC, compared to 76% for 0.18 g of FAN/L of fed-MECs and 62% for 0.37 g of FAN/L of fed-MECs. Increasing the FAN concentration was associated with the accumulation of higher organic acids (e.g., lactate, iso-butyrate, and propionate), which was accompanied by increasing relative abundances of phylotypes that are most closely related to anode respiration (Geobacteraceae), lactic-acid production (Lactobacillales), and syntrophic acetate oxidation (Clostridiaceae). Thus, the microbial community established syntrophic relationships among glucose fermenters, acetogens, and anode-respiring bacteria (ARB). The archaeal population of the MEC fed 0.02 g FAN/L was dominated by Methanobacterium, but 0.18 and 0.37 g FAN/L led to Methanobrevibacter becoming the most abundant species. Our results provide insight into a way to decrease CH4 production and increase CE using FAN to control the fermentation step, instead of inhibiting methanogens using expensive or toxic chemical inhibitors, such as 2 bromoethanesulfonic acid. PMID- 29039193 TI - Synthesis of Stable [28pi] m-Benzihexaphyrins (1.0.0.1.1.1). AB - Four new expanded [28pi] m-benziporphyrins (1.0.0.1.1.1) were synthesized by [3+3] condensation of 10,10'-bis[(p-toly)hydroxymethyl]-1,3-bis(2 thienyl)benzenediol with various 16-tripyrranes such as 16-thiatripyrrane, 16 oxatripyrrane, 16-azatripyrrane, and 16-selenatripyrrane under mild trifluoroacetic acid-catalyzed reaction conditions. The macrocycles are freely soluble in common organic solvents, and their identities were confirmed by HRMS and detailed 1D and 2D NMR spectroscopy. The macrocycles showed one sharp Soret type band at ~500 nm and broad ill-defined Q-type band(s) in the region 600-950 nm, which supports their nonaromatic nature. Upon protonation, the macrocycles exhibited bathochromically shifted absorption bands with a distinct change in the color of the solutions. The preliminary studies carried out with one of the macrocycles indicated that the macrocycles have a weak tendency to form coordination complexes. PMID- 29039194 TI - Microbial Photoelectrosynthesis for Self-Sustaining Hydrogen Generation. AB - Current artificial photosynthesis (APS) systems are promising for the storage of solar energy via transportable and storable fuels, but the anodic half-reaction of water oxidation is an energy intensive process which in many cases poorly couples with the cathodic half-reaction. Here we demonstrate a self-sustaining microbial photoelectrosynthesis (MPES) system that pairs microbial electrochemical oxidation with photoelectrochemical water reduction for energy efficient H2 generation. MPES reduces the overall energy requirements thereby greatly expanding the range of semiconductors that can be utilized in APS. Due to the recovery of chemical energy from waste organics by the mild microbial process and utilization of cost-effective and stable catalyst/electrode materials, our MPES system produced a stable current of 0.4 mA/cm2 for 24 h without any external bias and ~10 mA/cm2 with a modest bias under one sun illumination. This system also showed other merits, such as creating benefits of wastewater treatment and facile preparation and scalability. PMID- 29039195 TI - Ru/Cu Photoredox or Cu/Ag Catalyzed C4-H Sulfonylation of 1-Naphthylamides at Room Temperature. AB - A mild and efficient protocol for C4-H sulfonylation of 1-naphthylamine derivatives with sodium sulfinates has been described. This C4 sulfonylation proceeded smoothly at room temperature under Ru/Cu photoredox catalysis or Cu/Ag cocatalysis and could tolerate various functional groups. In addition, control experiments suggested that this C4-H sulfonylation reaction might proceed via a single-electron-transfer process. PMID- 29039196 TI - A Mitochondria-Targeted Ratiometric Biosensor for pH Monitoring and Imaging in Living Cells with Congo-Red-Functionalized Dual-Emission Semiconducting Polymer Dots. AB - The accurate and sensitive monitoring and imaging of mitochondrial pH in living cells play vital roles in chemical biology and biomedicine. Herein, we design a novel ratiometric fluorescent chemical probe for monitoring and imaging the pH of mitochondria in living cells based on congo-red (CR)-modified dual-emission semiconducting polymer dots (Pdots) via a competitive fluorescence resonance energy transfer (FRET) mechanism. The Pdots are synthesized by triphenylphosphonium (TPP)-modified polyoxyethylene nonylphenylether (CO-520), poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO), poly(9,9-dioctylfluorene)-co-(4,7-di-2 thienyl-2,1,3-benzothiadiazole) (PF-DBT5), and poly(styrene-co-maleic anhydride) (PSMA) via a nanoprecipitation method, and the prepared Pdots are further chemically linked with pH-sensitive, nonfluorescent CR to obtain the mitochondria targeted pH fluorescent probes. This Pdots-based probe consists of two luminescent components including PFO and PF-DBT5 as fluorescence donors, an acid base indicator CR as an energy acceptor, and TPP as the mitochondria-targeting group. At a different pH region, the FRET efficiency between CR and PFO or CR and PF-DBT5 can be modulated. This probe exhibits good biocompatibility, a wide pH detection range from 2.57 to 8.96, good reversibility, high selectivity, and excellent photostability for pH monitoring. This probe allows for the detecting and imaging of mitochondrial pH in living cells with satisfactory results. PMID- 29039197 TI - Influence of the Grain Size on the Properties of CH3NH3PbI3 Thin Films. AB - Hybrid perovskites have already shown a huge success as an absorber in solar cells, resulting in the skyrocketing rise in the power conversion efficiency to more than eta = 22%. Recently, it has been established that the crystal quality is one of the most important parameters to obtain devices with high efficiencies. However, the influence of the crystal quality on the material properties is not fully understood. Here, the influence of the morphology on electronic properties of CH3NH3PbI3 thin films is investigated. Postannealing was used to vary the average grain size continuously from ~150 to ~1000 nm. Secondary grain growth is thermally activated with an activation energy of Ea = 0.16 eV. The increase in the grain size leads to an enhancement of the photoluminescence, indicating an improvement in the material quality. According to surface photovoltage measurements, the charge-carrier transport length exhibits a linear increase with increasing grain size. The charge-carrier diffusion length is limited by grain boundaries. Moreover, an improved morphology leads to a drastic increase in power conversion efficiency of the devices. PMID- 29039198 TI - Electrochemical Synthesis of Cu2O Concave Octahedrons with High-Index Facets and Enhanced Photoelectrochemical Activity. AB - High-index-faceted nano-/microcrystals exhibit enhanced catalytic activity and can thus serve as new-generation catalysts owing to their high density of low coordinated atoms, leading to significantly enhanced catalytic activity. In this study, an effective electrochemical approach termed cyclic scanning electrodeposition (CSE) was developed to convert a thin Cu film into Cu2O concave octahedrons enclosed by 24 {344} high-index facets at room temperature with high yield and high throughput. The formation mechanism and the role of each ion in the electrolyte were systematically studied, which facilitated the design of a high-index-faceted metal/metal oxide through CSE. We also presented a general formula to identify the structure of an individual crystal enclosed by {khh} high index facets based on the crystals oriented along three low-index zone axes and imaged by transmission electron microscopy. Experimental results demonstrated the Cu2O concave octahedrons to be highly efficient, cost-effective catalysts for photoelectrochemical hydrogen production. This new technology is a promising route for the synthesis of metal or metal oxide crystals with high activity and has a great potential for several advanced applications, such as clean energy conversion. PMID- 29039199 TI - Dielectric Breakdown in Chemical Vapor Deposited Hexagonal Boron Nitride. AB - Insulating films are essential in multiple electronic devices because they can provide essential functionalities, such as capacitance effects and electrical fields. Two-dimensional (2D) layered materials have superb electronic, physical, chemical, thermal, and optical properties, and they can be effectively used to provide additional performances, such as flexibility and transparency. 2D layered insulators are called to be essential in future electronic devices, but their reliability, degradation kinetics, and dielectric breakdown (BD) process are still not understood. In this work, the dielectric breakdown process of multilayer hexagonal boron nitride (h-BN) is analyzed on the nanoscale and on the device level, and the experimental results are studied via theoretical models. It is found that under electrical stress, local charge accumulation and charge trapping/detrapping are the onset mechanisms for dielectric BD formation. By means of conductive atomic force microscopy, the BD event was triggered at several locations on the surface of different dielectrics (SiO2, HfO2, Al2O3, multilayer h-BN, and monolayer h-BN); BD-induced hillocks rapidly appeared on the surface of all of them when the BD was reached, except in monolayer h-BN. The high thermal conductivity of h-BN combined with the one-atom-thick nature are genuine factors contributing to heat dissipation at the BD spot, which avoids self-accelerated and thermally driven catastrophic BD. These results point to monolayer h-BN as a sublime dielectric in terms of reliability, which may have important implications in future digital electronic devices. PMID- 29039200 TI - In Search of the Perfect Photocage: Structure-Reactivity Relationships in meso Methyl BODIPY Photoremovable Protecting Groups. AB - A detailed investigation of the photophysical parameters and photochemical reactivity of meso-methyl BODIPY photoremovable protecting groups was accomplished through systematic variation of the leaving group (LG) and core substituents as well as substitutions at boron. Efficiencies of the LG release were evaluated using both steady-state and transient absorption spectroscopies as well as computational analyses to identify the optimal structural features. We find that the quantum yields for photorelease with this photocage are highly sensitive to substituent effects. In particular, we find that the quantum yields of photorelease are improved with derivatives with higher intersystem crossing quantum yields, which can be promoted by core heavy atoms. Moreover, release quantum yields are dramatically improved by boron alkylation, whereas alkylation in the meso-methyl position has no effect. Better LGs are released considerably more efficiently than poorer LGs. We find that these substituent effects are additive, for example, a 2,6-diiodo-B-dimethyl BODIPY photocage features quantum yields of 28% for the mediocre LG acetate and a 95% quantum yield of release for chloride. The high chemical and quantum yields combined with the outstanding absorption properties of BODIPY dyes lead to photocages with uncaging cross sections over 10 000 M-1 cm-1, values that surpass cross sections of related photocages absorbing visible light. These new photocages, which absorb strongly near the second harmonic of an Nd:YAG laser (532 nm), hold promise for manipulating and interrogating biological and material systems with the high spatiotemporal control provided by pulsed laser irradiation, while avoiding the phototoxicity problems encountered with many UV-absorbing photocages. More generally, the insights gained from this structure-reactivity relationship may aid in the development of new highly efficient photoreactions. PMID- 29039201 TI - Optical Transmittance Enhancement of Flexible Copper Film Electrodes with a Wetting Layer for Organic Solar Cells. AB - The development of highly efficient flexible transparent electrodes (FTEs) supported on polymer substrates is of great importance to the realization of portable and bendable photovoltaic devices. Highly conductive, low-cost Cu has attracted attention as a promising alternative for replacing expensive indium tin oxide (ITO) and Ag. However, highly efficient, Cu-based FTEs are currently unavailable because of the absence of an efficient means of attaining an atomically thin, completely continuous Cu film that simultaneously exhibits enhanced optical transmittance and electrical conductivity. Here, strong two dimensional (2D) epitaxy of Cu on ZnO is reported by applying an atomically thin (around 1 nm) oxygen-doped Cu wetting layer. Analyses of transmission electron microscopy images and X-ray diffraction patterns, combined with first-principles density functional theory calculations, reveal that the reduction in the surface and interface free energies of the wetting layers with a trace amount (1-2 atom %) of oxygen are largely responsible for the two-dimensional epitaxial growth of the Cu on ZnO. The ultrathin 2D Cu layer, embedded between ZnO films, exhibits a highly desirable optical transmittance of over 85% in a wavelength range of 400 800 nm and a sheet resistance of 11 Omega sq-1. The validity of this innovative approach is verified with a Cu-based FTE that contributes to the light-to electron conversion efficiency of a flexible organic solar cell that incorporates the transparent electrode (7.7%), which far surpasses that of a solar cell with conventional ITO (6.4%). PMID- 29039202 TI - Nanoelectronic Platform for Ultrasensitive Detection of Protein Biomarkers in Serum using DNA Amplification. AB - Silicon nanowire field effect transistors (NWFETs) are low noise, low power, ultrasensitive biosensors that are highly amenable to integration. However, using NWFETs to achieve direct protein detection in physiological buffers such as blood serum remains difficult due to Debye screening, nonspecific binding, and stringent functionalization requirements. In this work, we performed an indirect sandwich immunoassay in serum combined with exponential DNA amplification and pH measurement by ultrasensitive NWFET sensors. Measurements of model cytokine interleukin-2 concentrations from <20 fM to >200 pM were demonstrated, surpassing the conventional NWFET urease-based readout. Our approach paves way for future development of universal, highly sensitive, miniaturized, and integrated nanoelectronic devices that can be applied to a wide variety of analytes. PMID- 29039203 TI - Correction to "Nickel-Mediated Asymmetric Allylic Alkylation between Nitroallylic Acetates and Acyl Imidazoles". PMID- 29039204 TI - Access to Alkyl-Substituted Lactone via Photoredox-Catalyzed Alkylation/Lactonization of Unsaturated Carboxylic Acids. AB - An efficient photoredox-catalyzed alkylation/lactonization reaction of unsaturated carboxylic acids by using alkyl N-hydroxyphthalimide esters as alkylation reagents has been developed. Varieties of redox-active esters derived from aliphatic carboxylic acids were proved viable in this method, affording alkyl substituted lactones in moderate to good yields. This redox-neutral procedure features mild conditions and operational simplicity, which provides a new strategy for the synthesis of alkyl substituted lactones. PMID- 29039205 TI - Synthesis of Cardiopetaline via a Wagner-Meerwein Rearrangement without Preactivation of the Pivotal Hydroxy Group. AB - A synthesis of cardiopetaline has been accomplished via a Wagner-Meerwein rearrangement of a diol having the denudatine skeleton. The Wagner-Meerwein rearrangement could be facilitated simply by heating the diol with p toluenesulfonic acid in pivalic acid, without preactivating the pivotal hydroxy group. This strategy does not require differentiation of several hydroxy groups in the substrate for the Wagner-Meerwein rearrangement and could be applied to the synthesis of more highly oxygenated aconitine-type diterpenoid alkaloids. PMID- 29039206 TI - Oxidative stress in ischemia and reperfusion: current concepts, novel ideas and future perspectives. AB - Oxidative stress remains a major contributor to myocardial injury after ischemia followed by reperfusion (I/R) as the reperfusion of the myocardial infarction (MI) area inevitably leads to a cascade of I/R injury. This review focused on concepts of the antioxidative defense system and elucidates recent research using antioxidants like vitamin C, E and beta-carotene or essential trace elements to activate compounds of antioxidative pathways in the circulation. In this context, important defense mechanisms like superoxide dismutase and glutathione peroxidase will be described. Furthermore, the different mechanisms through which myocardial protection can be addressed, like ischemic postconditioning in myocardial infarction or adjunctive measures like targeted temperature management as well as new theories, including the role of iron in I/R injury, will be discussed. PMID- 29039207 TI - Stochastic Seasonal Models for Glucose Prediction in the Artificial Pancreas. AB - BACKGROUND: Linear empirical dynamic models have been widely used for glucose prediction. The extension of the concept of seasonality, characteristic of other domains, is explored here for the improvement of prediction accuracy. METHODS: Twenty time series of 8-hour postprandial periods (PP) for a same 60g carbohydrate meal were collected from a closed-loop controller validation study. A single concatenated time series was produced representing a collection of data from similar scenarios, resulting in seasonality. Variability in the resulting time series was representative of worst-case intrasubject variability. Following a leave-one-out cross-validation, seasonal and nonseasonal autoregressive integrated moving average models (SARIMA and ARIMA) were built to analyze the effect of seasonality in the model prediction accuracy. Further improvement achieved from the inclusion of insulin infusion rate as exogenous variable was also analyzed. Prediction horizons (PHs) from 30 to 300 min were considered. RESULTS: SARIMA outperformed ARIMA revealing a significant role of seasonality. For a 5-h PH, average MAPE was reduced in 26.62%. Considering individual runs, the improvement ranged from 6.3% to 54.52%. In the best-performing case this reduction amounted to 29.45%. The benefit of seasonality was consistent among different PHs, although lower PHs benefited more, with MAPE reduction over 50% for PHs of 60 and 120 minutes, and over 40% for 180 min. Consideration of insulin infusion rate into the seasonal model further improved performance, with a 61.89% reduction in MAPE for 30-min PH and reductions over 20% for PHs over 180 min. CONCLUSIONS: Seasonality improved model accuracy allowing for the extension of the PH significantly. PMID- 29039208 TI - First impressions of adults with autism improve with diagnostic disclosure and increased autism knowledge of peers. AB - A practical consideration for many intellectually able adults with autism spectrum disorder (ASD) is whether to disclose their diagnostic status or try to mask their autistic characteristics to avoid judgment and discrimination. Here, we assessed first impressions of adults with ASD and typically developing controls ( N = 40) made by typically developing observers ( N = 215) when their diagnostic status was either withheld, accurately provided, or inaccurately provided. First impressions were less favorable for ASD participants compared to typically developing controls across a range of judgments, but were significantly more positive when accurately labeled as ASD compared to when no label was provided, when mislabeled as typically developing, or when mislabeled as having schizophrenia. For typically developing participants, ratings did not change when accurately labeled but improved when mislabeled as ASD. Greater autistic traits for the ASD and typically developing participants were associated with less favorable first impressions, and females were rated more favorably than males. Autism knowledge of the raters, but not age, IQ, or autistic traits, was positively associated with more favorable impressions of ASD participants. Collectively, these findings suggest that first impressions for intellectually able adults with ASD improve with diagnostic disclosure and increased autism understanding on the part of peers. PMID- 29039209 TI - Re: Brent L. Finley, Stacey M. Benson & Gary M. Marsh (2017): Cosmetic talc as a risk factor for pleural mesothelioma: a weight of evidence evaluation of the epidemiology, Inhalation Toxicology, DOI: 10.1080/08958378.2017.1336187. PMID- 29039210 TI - Mailbox Tox: Ingestion of a Pharmaceutical Product Stolen From a Mailbox. PMID- 29039211 TI - Synergistic effects of heat and antibiotics on Pseudomonas aeruginosa biofilms. AB - Upon formation of a biofilm, bacteria undergo several changes that prevent eradication with antimicrobials alone. Due to this resistance, the standard of care for infected medical implants is explantation of the infected implant and surrounding tissue, followed by eventual reimplantation of a replacement device. Recent studies have demonstrated the efficacy of heat shock for biofilm eradication. To minimize the heat required for in situ biofilm eradication, this study investigated the hypothesis that antibiotics, while ineffective by themselves, may substantially increase heat shock efficacy. The combined effect of heat and antibiotics on Pseudomonas aeruginosa biofilms was quantified via heat shock in combination with ciprofloxacin, tobramycin, or erythromycin at multiple concentrations. Combined treatments had synergistic effects for all antibiotics for heat shock conditions of 60 degrees C for 5 min to 70 degrees C for 1 min, indicating an alternative to surgical explantation. PMID- 29039212 TI - Propagation and titration of infectious bursal disease virus, including non-cell culture-adapted strains, using ex vivo-stimulated chicken bursal cells. AB - Infectious bursal disease virus (IBDV) is a Birnaviridae family member of economic importance for poultry. This virus infects and destroys developing B lymphocytes in the cloacal bursa, resulting in a potentially fatal or immunosuppressive disease in chickens. Naturally occurring viruses and many vaccine strains are not able to grow in in vitro systems without prior adaptation, which often affects viral properties such as virulence. Primary bursal cells, which are the main target cells of lymphotropic IBDV in vivo, may represent an attractive system for the study of IBDV. Unfortunately, bursal cells isolated from bursal follicles undergo apoptosis within hours following their isolation. Here, we demonstrate that ex vivo stimulation of bursal cells with phorbol 12-myristate 13-acetate maintains their viability long enough to allow IBDV replication to high titres. A wide range of field-derived or vaccine serotype 1 IBDV strains could be titrated in these phorbol 12-myristate 13 acetate -stimulated bursal cells and furthermore were permissive for replication of non-cell-culture-adapted viruses. These cells also supported multistep replication experiments and flow cytometry analysis of infection. Ex vivo stimulated bursal cells therefore offer a promising tool in the study of IBDV. PMID- 29039213 TI - Do patients take angioplasty seriously? PMID- 29039214 TI - Pharmaceutical pricing in Japan: market evidence for rheumatoid arthritis treatment. AB - BACKGROUND: Drug price setting is one of the key challenges faced by the Japanese health care system. This study aims to identify the determinants of drug price in Japan using the example of the rheumatoid arthritis (RA) treatment market. RESEARCH DESIGN AND METHODS: In order to compare prices across different products, we calculated prices per defined daily dose using WHO methodology. Price determinants were calculated both at launch and over time using IMS quarterly data on medicines approved for RA treatment in Japan from 2012 to 2015. Pharmaceutical pricing was modeled as a function of clinical and economic variables using regression analysis. RESULTS: For prices at the launch we found that differences in efficacy are not reflected in price differentials. We also report that the number of products within a molecule class had a negative effect on prices while originator drugs maintained higher prices. CONCLUSION: Although the existing pricing rules in Japan are very comprehensive they do not necessarily capture differences in product characteristics. The findings here support the notion that competitive forces are weak in highly regulated markets such as Japan. PMID- 29039215 TI - A clinical assessment and lung tissue burden from an individual who worked as a Libby vermiculite miner. AB - During its days of operation (1920s-1990), the world's largest source of vermiculite was extracted from a mine located near Libby, Montana. The material mined at this site was shipped for various commercial applications to numerous sites in the United States. There was a "fibrous" component with toxic potential within the vermiculite deposit that has resulted in "asbestos-like" diseases/deaths being reported in numerous studies involving miners as well as residents of the town of Libby. The present case involves the clinical assessments of an individual who worked at the mine from 1969 to 1990. He had no other known occupational exposures to fibrous materials. He developed a clinical picture that included "asbestos-like" pathological features and eventually an adenocarcinoma. The clinical assessment including radiographic features will be presented. The evaluation will also include the analytical evaluation of the fibrous/ferruginous body composition of the lung tissue. This is to our knowledge the first time such an extensive evaluation has been conducted in a vermiculite miner from Libby, Montana. PMID- 29039216 TI - Breast cancer screening and migrants: exploring targeted messages for Moroccan migrant women in Brussels. AB - OBJECTIVES: This study explored views of Moroccan migrant women on barriers and facilitators to the organized breast cancer screening program in Brussels (Belgium), and the potential of targeted printed invitations to increase this population's attendance to the program. METHODS: We conducted one expert interview with the breast cancer screening program coordinator on current practices and challenges with regards to inviting Moroccan migrant women in Brussels for screening. Secondly, we held focus groups with Moroccan women aged 26-66. Sessions focused on perspectives on breast cancer screening and the existing generic program invitations. Directed content analysis of transcripts was based on the Health Belief Model. Alternative communication packages were developed based on barriers and suggestions from the focus groups. A second round of focus groups looked at the alternative communication packages and their potential to encourage Moroccan migrant women in Brussels to participate in the organized breast cancer screening program. RESULTS: Alternative packages were appreciated by some, but a number of adjustments did not catch participants' attention. Printed communication delivered by post does not appear to be the preferred means of communication to encourage breast cancer screening for Moroccan migrant women in Brussels, nor does it seem appropriate to address the barriers to screening found in this study. CONCLUSIONS: The benefit of targeted postal invitation packages for Moroccan migrant women in Brussels seems limited for a variety of reasons. For future research, a large-scale study analyzing the topic in a cross-cultural perspective is warranted. PMID- 29039218 TI - The integration of genomics testing and functional proteomics in the era of personalized medicine. PMID- 29039217 TI - The role of metabolomics in tuberculosis treatment research. AB - Despite the fact that tuberculosis (TB) is a curable disease, it still results in approximately 1.8 million deaths annually. Various inadequacies in the current TB treatment strategies are major contributors to this high disease prevalence, including the long duration of therapy, the severe side effects associated with TB drugs, treatment failure due to drug resistance, post-treatment disease relapse, and HIV co-infection. In this review, we describe how metabolomics has contributed toward better explaining/elucidating the mechanisms of drug action/metabolism, drug toxicity and microbial drug resistance, and how metabolite biomarkers may serve as prognostic indicators for predicting treatment outcome as well as for the development of new TB drugs. We also discuss possible future contributions that metabolomics can make toward more efficient, less toxic TB treatment strategies. PMID- 29039219 TI - Allergic Contact Cheilitis From a Variety of Lip Balm Ingredients. PMID- 29039221 TI - How useful is urinary-free cortisol in the clinic? AB - Measurement of 24-h urine-free cortisol is frequently employed as a first-line screening and disease-monitoring test in Cushing's syndrome (CS). The quest for 'cortisol specificity' has seen the emergence of mass spectrometry (MS) based assays, particularly liquid chromatography/tandem mass spectrometry. In contrast to traditional immunoassays, liquid chromatography/tandem mass spectrometry 'free cortisol' measurement is less susceptible to 'interference' from cortisol precursors and metabolites. However, detection of these conjugates is important in mild CS and therefore, missed by MS if cortisol alone is measured. MS assays nevertheless are capable of measuring broad steroid profiles, including the potential to distinguish benign from malignant adrenal-based CS and detection of exogenous glucocorticoids. Until this is routine practice, we recommend against abandoning immunoassays measurement of urine-free cortisol. PMID- 29039220 TI - Function of glutaredoxin 3 (Grx3) in oxidative stress response caused by iron homeostasis disorder in Candida albicans. AB - AIM: Glutaredoxin is a conserved oxidoreductase in eukaryotes and prokaryotes. This study aimed to determine the role of Grx3 in cell survival, iron homeostasis and the oxidative stress response in Candida albicans. MATERIALS & METHODS: A grx3Delta/Delta mutant was obtained using PCR-mediated homologs recombination. The function of Grx3 was investigated by a series of biochemical methods. RESULTS: Deletion of GRX3 impaired growth and cell cycle, disturbance of iron homeostasis and activated the oxidative stress response. Furthermore, disruption of GRX3 caused oxidative damage and growth defects of C. albicans. CONCLUSION: Our findings provide new insights into the role of GRX3 in C. albicans. PMID- 29039222 TI - Association between haptoglobin gene and insulin resistance in Arab-Americans. AB - AIM: To analyze associations between variation in the HP gene and lipid and glucose-related measures in Arab-Americans. Secondary analyses were performed based on sex. PATIENTS & METHODS: Genomic DNA was extracted from samples obtained from a previous epidemiological study of diabetes in Arab-Americans. The HP 1 and 2 alleles were analyzed by polymerase chain reaction and gel electrophoresis. Associations were analyzed by linear regression. RESULTS & CONCLUSION: Associations were identified between the heterozygous haptoglobin 2-1 genotype and insulin resistance, fasting insulin and fasting c-peptide. The effect of sex did not remain significant after adjustment for relevant variables. HP genetic variation may have utility as a biomarker of insulin resistance and diabetes risk in Arab-Americans, however, future prospective studies are needed. PMID- 29039223 TI - Predictors of excessive use of social media and excessive online gaming in Czech teenagers. AB - Background and aims Young people's involvement in online gaming and the use of social media are increasing rapidly, resulting in a high number of excessive Internet users in recent years. The objective of this paper is to analyze the situation of excessive Internet use among adolescents in the Czech Republic and to reveal determinants of excessive use of social media and excessive online gaming. Methods Data from secondary school students (N = 4,887) were collected within the 2015 European School Survey Project on Alcohol and Other Drugs. Logistic regression models were constructed to describe the individual and familial discriminative factors and the impact of the health risk behavior of (a) excessive users of social media and (b) excessive players of online games. Results The models confirmed important gender-specific distinctions - while girls are more prone to online communication and social media use, online gaming is far more prevalent among boys. The analysis did not indicate an influence of family composition on both the excessive use of social media and on excessive online gaming, and only marginal effects for the type of school attended. We found a connection between the excessive use of social media and binge drinking and an inverse relation between excessive online gaming and daily smoking. Discussion and conclusion The non-existence of significant associations between family environment and excessive Internet use confirmed the general, widespread of this phenomenon across the social and economic strata of the teenage population, indicating a need for further studies on the topic. PMID- 29039224 TI - Comparison of brain connectivity between Internet gambling disorder and Internet gaming disorder: A preliminary study. AB - Background and aims Given the similarities in clinical symptoms, Internet gaming disorder (IGD) is thought to be diagnostically similar to Internet-based gambling disorder (ibGD). However, cognitive enhancement and educational use of Internet gaming suggest that the two disorders derive from different neurobiological mechanisms. The goal of this study was to compare subjects with ibGD to those with IGD. Methods Fifteen patients with IGD, 14 patients with ibGD, and 15 healthy control subjects were included in this study. Resting-state functional magnetic resonance imaging data for all participants were acquired using a 3.0 Tesla MRI scanner (Philips, Eindhoven, The Netherlands). Seed-based analyses, the three brain networks of default mode, cognitive control, and reward circuitry, were performed. Results Both IGD and ibGD groups demonstrated decreased functional connectivity (FC) within the default-mode network (DMN) (family-wise error p < .001) compared with healthy control subjects. However, the IGD group demonstrated increased FC within the cognitive network compared with both the ibGD (p < .01) and healthy control groups (p < .01). In contrast, the ibGD group demonstrated increased FC within the reward circuitry compared with both IGD (p < .01) and healthy control subjects (p < .01). Discussion and conclusions The IGD and ibGD groups shared the characteristic of decreased FC in the DMN. However, the IGD group demonstrated increased FC within the cognitive network compared with both ibGD and healthy comparison groups. PMID- 29039226 TI - Reconstruction of Traumatic Dorsal Loss of the Thumb: Four Different Surgical Approaches. AB - BACKGROUND: This article outlines our methods for thumb reconstruction following dorsal skin loss injury located between the metacarpophalangeal joint (MPj) and the entire nail affecting skin, nail, tendon, and bone in different combinations but with intact sensate palmar skin. METHODS: Between 1990 and 2015, 24 patients were treated for dorsal thumb defects using 4 different surgical techniques. Five cases of dorsal compound traumatic loss were reconstructed by custom-made dorsal great toe transfer. Four patients with dorsal skin and nail loss located at the distal phalanx level were covered with the homodigital flap with reverse flow vascularization. In 9 patients presenting skin defects between the MPj and the nail, reconstruction was achieved by means of the kite flap. Six cases suffered extensive dorsal skin loss, and reconstruction was performed using different types of radial forearm flaps (cutaneous, tendineocutaneous, osteocutaneous, and fascial). RESULTS: Flap survival was obtained in all cases. No vascular complications occurred with free vascularized compound toe transfer. CONCLUSIONS: Reconstruction of dorsal thumb defects is imperative and its approach is strictly correlated to type of defect, patient's requests, and flap alternatives. For defects with nail involvement, the free osteo-onychocutaneous flap harvested from the great toe provides the best aesthetic result in selected young and well motivated patients. An alternative is represented by the dorsoulnar flap, when the defect is located distally, or the fascial pedicle radial forearm flap, for major dorsal thumb defects, in patients refusing microsurgical reconstruction. The kite flap still represents a feasible solution for medium-size defects with an intact nail. PMID- 29039227 TI - The Violent Accounts of Men Diagnosed With Comorbid Antisocial and Borderline Personality Disorders. AB - This study explored the violent offence accounts of life-sentenced prisoners diagnosed with comorbid antisocial personality disorder (ASPD) and borderline personality disorder (BPD). The aim of the current study was to gain needed clinical insight into the mechanisms involved in this specific group offenders' use of violence against others. Six adult male personality-disordered offenders were interviewed via a semistructured interview schedule to collate individual offence accounts. Interview transcripts were analyzed by the lead researcher (first author) using interpretative phenomenological analysis (IPA) who compared and contrasted findings to develop superordinate themes across the group. External auditing analysis was conducted by the second researcher. Four superordinate themes resulted. These were "A victim of a hostile and rejecting world," "Self as unacceptable to others," "Unwanted emotions that cannot be tolerated or controlled," and "Violent revenge as catharsis." The results support the view that emotional dysregulation is central in driving acts of violence in those with comorbid ASPD/BPD; nevertheless, shame was particularly prevalent. Thus an argument is made for the adaptation of evidence-based treatments for this specific forensic population to ensure a particular focus on helping men tolerate feelings of shame. The limitations of the study are also discussed. PMID- 29039225 TI - Toxicological impact of waterpipe smoking and flavorings in the oral cavity and respiratory system. AB - Waterpipe smoking (WS), an emerging trend has major health concerns. It is prevalent worldwide as a recreational activity both indoors and outdoors. The aim of this review was to assess the impact of waterpipe smoke on the oral and respiratory system (oral cavity and pulmonary tissues). A number of studies have shown that periodontal health status is compromised in waterpipe smokers when compared with nonsmokers. Some studies have associated WS with oral premalignant and malignant lesions; however, due to the poor quality of these studies, the presented outcomes should be interpreted with caution. Although cigarette smoking has been considered as a potential risk factor for dental caries; there are no studies in indexed literature that have shown an association to exist between dental caries and WS. Inhaled waterpipe smoke imposes oxidative stress and inflammatory responses and compromises the ventilatory capacity of the lungs and may lead to an increased risk of decline in lung function. WS may cause oral and pulmonary diseases, such as periodontal disease and chronic obstructive airway disease, respectively. The association between WS and development of dental caries and oral pre-cancer and their relationships with chronic airways disease requires investigations. This review discusses the current evidence of waterpipe smoke effects on the oral health and respiratory system based on basic and clinical science and provides future directions for research and regulatory science on how WS can affect the oral cavity and the respiratory/pulmonary system. PMID- 29039228 TI - Evaluation of the respiratory tract toxicity of ortho-phthalaldehyde, a proposed alternative for the chemical disinfectant glutaraldehyde. AB - ortho-Phthalaldehyde (OPA) is a high-level chemical disinfectant that is commonly used for chemical sterilization of dental and medical instruments as an alternative to glutaraldehyde, a known skin and respiratory sensitizer. Concern for safe levels of human exposure remains due to a lack of toxicity data as well as human case reports of skin and respiratory sensitization following OPA exposure. The present study evaluated the inhalational toxicity of OPA in Harlan Sprague-Dawley rats and B6C3F1/N mice. Groups of 10 male and female rats and mice were exposed to OPA by whole-body inhalation for 3 months at concentrations of 0 (control), 0.44, 0.88, 1.75, 3.5, or 7.0 ppm. Rats and mice developed a spectrum of lesions at sites of contact throughout the respiratory tract (nose, larynx, trachea, lung), as well as in the skin and eye, consistent with a severe irritant response. In general, histologic lesions (necrosis, inflammation, regeneration, hyperplasia and metaplasia) occurred at deeper sites within the respiratory tract with increasing exposure concentration. As a first site of contact, the nose exhibited the greatest response to OPA exposure and resulted in an increased incidence, severity and variety of lesions compared to a previous study of glutaraldehyde exposure at similar exposure concentrations. This increased response in the nasal cavity, combined with extensive lesions throughout the respiratory tract, provides concern for use of OPA as a replacement for glutaraldehyde as a high-level disinfectant. PMID- 29039229 TI - Exposure to allethrin-based mosquito coil smoke during gestation and postnatal development affects reproductive function in male offspring of rat. AB - The threat of zika virus looms throughout the world and the use of allethrin based mosquito coils to prevent mosquito bites during and postpregnancy is on the rise. The aim of this study was to analyze the toxic effects of exposure to allethrin-based mosquito coil smoke in rats under conditions that reflect human settings. Pregnant female rats were exposed to mosquito coil smoke and same was continued to the male pups up to 111 days postparturition (21-day weaning plus up to 90 days postweaning). Increased oxidative stress, distorted antioxidant enzyme status, downregulation of genes involved in spermatogenesis, sperm maturation and steroidogenesis was observed. Daily sperm production, total sperm count and acrosome reaction was compromised. Results of our study indicate the toxic effects of exposure to allethrin-based mosquito coil smoke in male offspring and calls for preventing mosquito coil use during pregnancy and postnatal development. Community-based programs that will encourage general population to use classical methods such as use of mosquito nets, keeping the surroundings clean and use of natural mosquito repellents should be conducted. PMID- 29039230 TI - Effect of prenatal waterpipe tobacco smoke on airway inflammation in murine model of asthma of adult offspring mice. AB - OBJECTIVE: Worldwide popularity of waterpipe tobacco smoking has increased, including in pregnant women. This study investigates the effect of prenatal waterpipe tobacco smoke (WTS) exposure on airway inflammation in a murine model of asthma of adult offspring mice. MATERIALS AND METHODS: Pregnant BALB/c mice were exposed to fresh air or WTS, using a whole-body exposure system that mimics human use during WTS. Adult male offspring mice were divided into; (1) control (prenatal fresh air, postnatal ovalbumin sensitization and saline challenge), (2) postnatal Ova S/C (prenatal fresh air, postnatal ovalbumin sensitization and challenge (Ova S/C)), (3) prenatal WTS (prenatal WTS, postnatal ovalbumin sensitization and saline challenge) and (4) prenatal WTS + postnatal Ova S/C. Cells from the bronchoalveolar lavage fluid, cytokines, and oxidative stress markers (superoxide dismutase (SOD), catalase, glutathione peroxidase (GPx) and thiobarbituric acid reactive substances (TBARS)) from lung homogenates were evaluated. RESULTS: Prenatal WTS increased recruitment of cells in lungs and levels of SOD and catalase when compared to unexposed offspring's. The levels of cytokines, GPx and TBARS were not affected by prenatal WTS. Prenatal WTS exposure and postnatal Ova S/C increased airway inflammation and activity of SOD compared to control and Ova S/C mice and reduced IL-18 levels compared to Ova S/C mice. DISCUSSION AND CONCLUSIONS: Prenatal exposure to WTS induced airway inflammation, further enhanced by a murine model of asthma in adult offspring. Prenatal exposure to WTS adversely affects the lung function of the offspring and careful strategies for increasing public awareness regarding the harmful effects of WTS during pregnancy is important. PMID- 29039231 TI - The respiratory health effects of geogenic (earth derived) PM10. AB - Inhalation of particulate matter less than 10 um in diameter (PM10) has a range of implications for respiratory health. In order to mitigate these effects regulatory bodies have set ambient air quality guidelines based on the known dose response relationships between PM10 exposure and health outcomes. However, these data are based almost entirely on PM10 from urban regions, which are typically dominated by particulates from combustion sources. In contrast, there are limited data on the respiratory health effects of particles from nonurban regions that often contain a high geogenic (earth derived) component. In this narrative review, we summarize the existing evidence for the respiratory health effects of inhalation of geogenic PM10. We outline the impact of physicochemical properties on the lung response, with a view to identifying gaps in the field. PMID- 29039232 TI - Letter on: "Cosmetic talc as a risk factor for pleural mesothelioma: a weight of evidence evaluation of the epidemiology". PMID- 29039233 TI - The relationships of classic psychedelic use with criminal behavior in the United States adult population. AB - Criminal behavior exacts a large toll on society and is resistant to intervention. Some evidence suggests classic psychedelics may inhibit criminal behavior, but the extent of these effects has not been comprehensively explored. In this study, we tested the relationships of classic psychedelic use and psilocybin use per se with criminal behavior among over 480,000 United States adult respondents pooled from the last 13 available years of the National Survey on Drug Use and Health (2002 through 2014) while controlling for numerous covariates. Lifetime classic psychedelic use was associated with a reduced odds of past year larceny/theft (aOR = 0.73 (0.65-0.83)), past year assault (aOR = 0.88 (0.80-0.97)), past year arrest for a property crime (aOR = 0.78 (0.65 0.95)), and past year arrest for a violent crime (aOR = 0.82 (0.70-0.97)). In contrast, lifetime illicit use of other drugs was, by and large, associated with an increased odds of these outcomes. Lifetime classic psychedelic use, like lifetime illicit use of almost all other substances, was associated with an increased odds of past year drug distribution. Results were consistent with a protective effect of psilocybin for antisocial criminal behavior. These findings contribute to a compelling rationale for the initiation of clinical research with classic psychedelics, including psilocybin, in forensic settings. PMID- 29039234 TI - Risk of Development of Second Primary Head and Neck Cancer following an Index Breast Cancer. AB - Objective Many head and neck cancers (HNCs) have genomic features seen in breast malignancy. We sought to analyze the risk of second primary HNC following an index breast cancer. Study Design Retrospective cohort study. Setting National database from the SEER registry (Surveillance, Epidemiology, and End Results). Subjects and Methods Within the SEER database, 223,423 women diagnosed with index breast cancer from 1992 to 2002 were identified. We calculated standard incidence ratios (SIRs) for all head and neck sites with 10-year follow-up. Results Women diagnosed with an index breast cancer did not exhibit higher likelihood of developing second primary HNC (SIR = 0.99; 95% CI, 0.90-1.07). The risk was determined for each subsite of the head and neck, and salivary gland cancer presented the highest risk. Patients with index breast cancer were 83% more likely to develop salivary gland cancer than what would be expected in the general population (SIR = 1.83; 95% CI, 1.49-2.22). An overall trend of increased risk was observed for salivary gland cancers between 1992 and 2002. There was no significant higher risk observed for the other head and neck subsites. Conclusion Patients with index breast cancer did not have a higher-than-expected risk of developing HNC. We did find an increased incidence of salivary gland cancers among patients with index breast cancer. Patients were 80% more likely to develop salivary gland cancer than that expected within the population. These findings warrant further investigation on the relationship between salivary gland and breast malignancy. PMID- 29039235 TI - Short-term Subjective and Objective Outcomes of Patients Receiving Endoscopic Transcanal Myringoplasty for Repairing Tympanic Perforations. AB - Objective Endoscopic transcanal myringoplasty (ETM) has been an emerging technique for repairing tympanic perforations since the late 1990s. Objective outcomes (ie, graft success rates and hearing results) of patients who received ETM are well documented; however, subjective outcomes of these patients have rarely been reported. Hence, this study evaluated subjective and objective outcomes of patients who received ETM for repairing tympanic perforations. Study Design Prospective study. Setting Tertiary care university hospital. Patients and Methods Patients who underwent ETM for perforations of the tympanic membrane were included. We evaluated subjective variables of patients receiving ETM as the primary outcome and objective variables as the secondary outcome. Results In total, 91 ears that underwent ETM were included. The mean pain scale score was 0.1 (range, 0-2) on postoperative day 3. The mean duration of pain medication was 2.0 (range, 0-3) days. The mean number of days required to resume routine activities was 1.0 (range, 1-2) days. The overall graft success was determined postoperatively at 3 months in 80 of 91 ears (87.9%). Closure of the air-bone gap to within 20 dB was achieved in 79 (86.8%) ears. Conclusion In this study, patients who received ETM had mild postoperative pain and resumed routine activities early. These patients also exhibited favorable graft success rates and hearing results at 3 months postoperatively. On the basis of our results, we conclude that patients who receive ETM for the repair of tympanic perforations have favorable short-term subjective and objective outcomes. PMID- 29039236 TI - Social inequalities in self-rated health: A comparative cross-national study among 32,560 Nordic adolescents. AB - AIMS: We aimed to estimate the magnitude of socioeconomic inequality in self rated health among Nordic adolescents (aged 11, 13 and 15 years) using the Family Affluence Scale (a composite measure of material assets) and perceived family wealth as indicators of socioeconomic status. METHODS: Data were collected from the Health Behaviour in School-aged Children (HBSC) survey in 2013-2014. A sample of 32,560 adolescents from Denmark, Norway, Finland, Iceland, Greenland and Sweden was included in the study. Age-adjusted regression analyses were used to estimate associations between fair or poor self-rated health and the ridit scores for family affluence and perceived wealth. RESULTS: The pooled relative index of inequality of 2.10 indicates that the risk of fair or poor health was about twice as high for young people with the lowest family affluence relative to those with the highest family affluence. The relative index of inequality for observed family affluence was highest in Denmark and lowest in Norway. For perceived family wealth, the pooled relative index of inequality of 3.99 indicates that the risk of fair or poor health was about four times as high for young people with the lowest perceived family wealth relative to those with the highest perceived family wealth. The relative index of inequality for perceived family wealth was highest in Iceland and lowest in Greenland. CONCLUSIONS: Social inequality in self-rated health among adolescents was found to be robust across subjective and objective indicators of family affluence in the Nordic welfare states. PMID- 29039237 TI - SGLT2 inhibitors: are they safe? AB - Sodium-glucose linked transporter type 2 (SGLT2) inhibitors are a relatively new class of antidiabetic drugs with positive cardiovascular and kidney effects. The aim of this review is to present the safety issues associated with SGLT2 inhibitors. Urogenital infections are the most frequently encountered adverse events, although tend to be mild to moderate and are easily manageable with standard treatment. Although no increased acute kidney injury risk was evident in the major trials, the mechanism of action of these drugs requires caution when they are administered in patients with extracellular volume depletion or with drugs affecting renal hemodynamics. Canagliflozin raised the risk of amputations and the rate of fractures in the CANVAS trial, although more data are necessary before drawing definite conclusions. The risk of euglycemic diabetic ketoacidosis seems to be minimal when the drugs are prescribed properly. Regarding other adverse events, SGLT2 inhibitors do not increase the risk of hypoglycemia even when co-administered with insulin, but a decrease in the dose of sulphonylureas may be needed. The available data do not point to a causative role of SGLT2 inhibitors on malignancy risk, however, these drugs should be used with caution in patients with known hematuria or history of bladder cancer. SGLT2 inhibitors seem to be safe and effective in the treatment of diabetes but more studies are required to assess their long-term safety. PMID- 29039238 TI - Sensory Reduction on the General Milieu of a High-Acuity Inpatient Psychiatric Unit to Prevent Use of Physical Restraints: A Successful Open Quality Improvement Trial. AB - BACKGROUND: Impaired sensory gating in patients with acute mental illness predisposes to overstimulation and behavioral dyscontrol. OBJECTIVE: Explore use of sensory reduction interventions on a high-acuity inpatient milieu to reduce high assault/restraint rates. DESIGN: A multidisciplinary team using failure mode and effect analysis to explore high restraint use between 4:00 p.m. and 7:00 p.m. observed patient/staff overstimulation contributed to behavioral escalations. The team implemented sensory reduction/integration improvements over a 5-month period to prevent excessive restraint use. RESULTS: Restraint rates dropped immediately following light and sound reduction interventions and by 72% at 11 months postimplementation. Mann-Whitney statistics for unpaired 6-month comparisons, 1 year pre- and postintervention showed significant reductions: Assault rates (median pre = 1.37, post = 0.18, U = 4, p = .02); Restraint rates (median pre = 0.50, post = 0.06, U = 0, p = .002). CONCLUSION: Sensory reduction during a high stress time period on a high-acuity psychiatric unit was associated with a reduction in assaults and restraints. PMID- 29039239 TI - How Do People Experience Early Intervention Services for Psychosis? A Meta Synthesis. AB - We conducted a study to explore how people diagnosed with first-episode psychosis experienced their contact with early intervention services for psychosis and the way these experiences relate to their recovery processes. Our aim was to integrate and describe the service users' experiences in a rigorous and comprehensive way. A broad literature search was performed in June and July 2016. After screening, 17 qualitative studies were included. We analyzed the findings in two main steps: (a) translating studies into one another and (b) synthesizing the findings from the studies. Through these interpretative processes, we found five new and overarching themes: (a) something is wrong, (b) do for myself, (c) it's about people, (d) a price to pay, and (e) ongoing vulnerability. We describe these themes as a process that service users' maneuver through in their contact with the services. Our findings are discussed in light of relevant research. PMID- 29039240 TI - Repeated study of items with and without repeated context: aging effects on memory discriminability. AB - Presenting items multiple times during encoding is a common way to enhance recognition accuracy. Under such conditions, older adults often show an increase in false recognition that counteracts benefits of repeated study. Using a false memory paradigm with related study items and related lures, we tested whether repetition within the same encoding task or repetition across two different encoding tasks would be more beneficial to older adults' memory discriminability. Results showed that, compared to items not repeated at study, items repeated in the same context and items repeated across different contexts showed improvements in memory discriminability in both young and older adults. This improvement was primarily reflected in improved recollection responses for both age groups across both repeat study conditions, as compared to no repetition. Importantly, the results demonstrated that repetition can be used to successfully mitigate age related deficits by increasing memory discriminability and without incurring a cost of false recognition specific to any one age group. PMID- 29039241 TI - Aripiprazole long-acting injection - a mirror image study of its effects on hospitalisation at one year. AB - Second generation antipsychotic long-acting injections have a greater cost than older depots. Their cost-effectiveness has yet to be established. We conducted a non-interventional, observational, follow-up of patients prescribed aripiprazole long-acting injection in two centres using a mirror image method. Data were available for 160 patients consecutively prescribed aripiprazole long-acting injection, of whom 30 were not included in the analysis (21 forensic patients, five incomplete data and four lost to follow-up). Of the 130 patients, 66 (51%) remained on aripiprazole long-acting injection at one year. The mean number of bed days in the year following aripiprazole long-acting injection initiation reduced to 22.82/patient (standard deviation [SD]=55.07) from 30.09/patient/year (SD=30.40) over the three years before initiation ( p<0.001). The mean number of admissions fell from 0.71/patient/year (SD=0.55) to 0.45/patient/year (SD=0.93) over the same period ( p<0.001). The median number of bed days in the three years before aripiprazole long-acting injection was 21.67/year; in the year following it was zero. Outcomes were not statistically better in those who remained on aripiprazole long-acting injection at one year compared with those who discontinued. The prescribing of aripiprazole long-acting injection reduces average bed days and admissions compared with prior treatments. The reduction in bed days is of a magnitude that renders aripiprazole long-acting injection broadly cost-neutral. PMID- 29039242 TI - Computational elucidation, mutational and hot spot-based designing of potential inhibitors against human acid-sensing ion channels (hASIC-1a) to treat various physiological conditions. AB - Acid-sensing ion channels are ligand/proton-gated ion channels belonging to the family of the degenerin/epithelial Na+ channel (DEG/ENaC). They function as a sodium-selective pore for Ca2+ entry into neuronal cells during pathological conditions. The blocking of this channel has therapeutic importance, because at basal physiological pH (7.2), it is in a closed state and under a more acidic condition, and the ASIC1a ion channel is activated. To investigate the different states of the hASIC1a channel based on mutational analysis, structure-based virtual screening and molecular dynamics simulation studies. The system showed stability after 30 ns (after 1500 frame), and it was stabilized to an average value around 2.2A. During the simulation, the ion channel residues in persistent contact with toxin PcTx1 were D237, E238, D347, D351, E219 and E355. These residues are important physiologically for the activation of the channel. From in silico alanine scanning, the significant hotspots obtained in hASIC1 are E344, P347, F352, D351, E355 and E219. From the sitemap analysis, it was evident that the sitemap found one of the active sites at the PcTx1 binding site with a site score of 1.086 and a D-score of 1.035 for hASIC1. We obtained a few promising hits and final potential hits from the virtual screening in hASIC1 that made interactions with the residues in the acidic pocket (E344, P347, F352, D351, E355 and E219). Based on these studies, the hits and scaffolds of potential therapeutic interest against various pathological conditions are associated with hASIC1a for future studies. PMID- 29039245 TI - Jumping into the world of social media with Palliative Medicine. PMID- 29039243 TI - A Novel Approach to Oropharyngeal Foreign Body Removal. AB - Grill wire brush bristle foreign bodies most commonly embed in the oropharynx. Often these bristles can be removed in the clinic; however, on occasion, the patient requires general anesthesia for retrieval because of the gag reflex and difficulty with access and visualization. We report here on 2 cases of patients who underwent successful transoral robotic surgical retrieval of wire bristles from the base of tongue after unsuccessful direct laryngoscopy. Otolaryngologists should be aware of the use of robotic assistance for oropharyngeal foreign body retrieval. PMID- 29039246 TI - Regular Practice of Competitive Sports Does Not Impair Sleep in Adolescents: DADOS Study. AB - PURPOSE: To analyze differences in sleep quality and duration by athletic status and sex, and to examine the association between physical activity (PA) recommendation and sleep in adolescents. METHODS: A total of 267 adolescents [13.9 (0.3) y] from Deporte, ADOlescencia y Salud (DADOS) study (129 girls) were included in this cross-sectional analysis. Athletes competed regularly in organized sport events and trained >=3 days per week, but nonathletes did not compete. PA was assessed by GENEActiv accelerometer. PA values were dichotomized into inactive (<60 min/d of moderate and vigorous PA) and active (>=60 min/d of moderate and vigorous PA). Sleep quality was evaluated with the Spanish version of the Pittsburgh Sleep Quality Index. Pittsburgh Sleep Quality Index values were dichotomized into >5 (poor quality) or <=5 (good quality). Sleep duration was objectively measured by accelerometer. RESULTS: Sleep quality and duration were not statistically different between athletes [median (Mdn) = 4.0, interquartile range (IQR) = 3.0-6.0 and Mdn = 8.0, IQR = 7.4-8.6 h, respectively] and nonathletes (Mdn = 5.0, IQR = 3.0-7.0 and Mdn = 7.9; IQR = 7.3-8.6 h, respectively), P > .05. Nonathlete or inactive adolescents did not show higher risk for poor sleep quality or short sleep duration than athletes [odds ratio (OR) = 1.17; 95% confidence interval (CI), 0.68-2.00 and OR = 0.93; 95% CI, 0.56 1.55, respectively] or active peers (OR = 1.39; 95% CI, 0.66-2.89 and OR = 1.62; 95% CI, 0.78-3.37, respectively). CONCLUSIONS: In our group of adolescents, competitive sport practice did not alter sleep patterns. PA recommendations for adolescents may not discriminate between good and poor sleepers. PMID- 29039247 TI - High throughput in silico identification and characterization of Plasmodium falciparum PRL phosphatase inhibitors. AB - Kinases and phosphatases are involved in many essential processes in Plasmodium lifecycle. Among the identified 67 Plasmodium falciparum phosphatases, Phosphatase of Regenerating Liver (PRL) family protein homolog, PfPRL, is an essential parasite tyrosine phosphatase. PfPRL is shown to be prenylated, secreted, and involved in the host invasion process. In the present study, a structure-based high throughput in silico screening of PfPRL binders, using ChEMBL-NTD compounds lead to the identification of nine compounds based on binding energy, Lipinski rule of five, and QED score. The most of the shortlisted compounds are known to inhibit parasite growth at a concentration (EC50) <=2 MUm in in vitro P. falciparum culture assays. MD simulations were carried out on the shortlisted nine potential enzyme-inhibitor complexes to analyze specificity, stability, and to calculate the free binding energies of the complexes. The study identifies PfPRL as one of the potential drug targets for selected ChEMBL-NTD compounds that may be exploited as a scaffold to develop novel antimalarials. PMID- 29039248 TI - Impact of Resident Participation on Operative Time and Outcomes in Otologic Surgery. AB - Objectives To describe the impact of resident involvement in tympanoplasty on operative time and surgical complication rates. Study Design Case series with chart review. Setting Tertiary medical center. Subjects and Methods Current Procedural Terminology codes were used to identify patients in the 2011-2014 public use files of the American College of Surgeons National Surgical Quality Improvement Program who underwent a tympanoplasty or tympanomastoidectomy. Cases were included if the database indicated whether the operating room was staffed with an attending alone or an attending with residents. Categorical and continuous variables were compared with chi-square, Fisher's exact, and Mann Whitney U tests. Generalized linear models with a log-link and gamma distribution were used to examine the factors affecting operative time. Results Overall, 1045 cases met our study criteria (tympanoplasty, n = 797; tympanomastoidectomy, n = 248). Resident involvement increased mean operative time for tympanoplasties by 46% (107 vs 73 minutes, P < .001) and tympanomastoidectomies by 49% (175 vs 117 minutes, P < .001). While controlling for confounding factors, the variable with the largest impact on operative time was resident involvement. There were no significant differences observed in the rate of surgical complications between attending-alone and attending-resident cases. Conclusion Resident involvement in tympanoplasty and tympanomastoidectomy did not affect the surgical complication rate. Resident involvement increased operative time for tympanoplasties and tympanomastoidectomies; however, the specific reasons for the increase are not explained by the available data. PMID- 29039249 TI - Visualizing a Vibrio cholerae O1 El Tor typing bacteriophage belonging to the Myoviridae group and the packaging of its genomic ends inside the phage capsid. AB - Phage D10, an O1 El Tor tying vibriophage, has been successfully employed to tract the outspread of cholera epidemic. Using Transmission Electron Microscopy and computational image analysis, we have determined the structures of the capsid, head-to-tail connector, the contractile helical tail, the baseplate and combined them to form the complete three-dimensional (3D) D10 phage structure. Using partial denaturation experiments on the genome and using the computed 3D structure of the phage, we have established the packing of the genome ends inside the capsid together with the release styles during the phage infection, respectively. Finally, using the 3D density maps of the different components of the D10 phage, we have presented a simplified picture of morphogenesis of the D10 vibriophage. Using the complete assembled structure of the D10 phage, we have traced the path of the phage genome during the infection process, all the way from the phage head down the tail tube of the tail to the top of the baseplate. To the best of our knowledge, this is first structural study for a long-tailed vibriophage. We have tabulated the structural features of the different components of the phages belonging to the Myoviridae and Siphoviridae. The comparative study suggested the possibility of a common origin of the bacteriophages, irrespective of belonging to different groups and species. PMID- 29039250 TI - Predictors of Clinicopathologic Stage Discrepancy in Oropharyngeal Squamous Cell Carcinoma: A National Cancer Database Study. AB - Objective To determine the frequency, associated factors, and prognosis of clinicopathologic stage discrepancy in oropharyngeal squamous cell carcinoma (OPSCC). Study Design Retrospective study using a national database. Setting National Cancer Database. Subjects and Methods Cases of OPSCC diagnosed between January 1, 2004, and December 31, 2013, with full clinical and pathologic staging information available were identified. Demographic, clinicopathologic, and treatment variables associated with overall stage discrepancy were identified by multivariate logistic regression analysis. Results In total, 7731 cases of OPSCC were identified. Overall stage discrepancy was present in 30.2% of cases (21.9% upstaging, 8.2% downstaging). A total of 13.1% of cases were T-upstaged, and 10.5% of cases were T-downstaged; 22.9% of cases were N-upstaged, and 8.6% of cases were N-downstaged. Upstaging by overall stage was associated with a high Charlson-Deyo score, high tumor grade, number of lymph nodes examined, and increasing tumor size. No factors were positively associated with downstaging. High tumor grade was negatively associated with downstaging. For stage II, III, and IVA tumors, upstaging was associated with poorer OS. Conclusion Clinicopathologic stage discrepancy is common in OPSCC and is likely attributable to insensitive clinical staging techniques as well as to intrinsic tumor biologic properties. Upstaging is associated with poorer prognosis, which is likely due to advancement of disease. PMID- 29039251 TI - Eye-Tracking Causality. AB - How do people make causal judgments? What role, if any, does counterfactual simulation play? Counterfactual theories of causal judgments predict that people compare what actually happened with what would have happened if the candidate cause had been absent. Process theories predict that people focus only on what actually happened, to assess the mechanism linking candidate cause and outcome. We tracked participants' eye movements while they judged whether one billiard ball caused another one to go through a gate or prevented it from going through. Both participants' looking patterns and their judgments demonstrated that counterfactual simulation played a critical role. Participants simulated where the target ball would have gone if the candidate cause had been removed from the scene. The more certain participants were that the outcome would have been different, the stronger the causal judgments. These results provide the first direct evidence for spontaneous counterfactual simulation in an important domain of high-level cognition. PMID- 29039252 TI - Western-style diet induces object recognition deficits and alters complexity of dendritic arborization in the hippocampus and entorhinal cortex of male rats. AB - OBJECTIVE: Research demonstrates a link between diet-induced obesity and cognitive impairments; however, no studies have utilized the Sholl analysis to assess changes in dendritic arborization as a possible cause of obesity-induced memory deficits. Therefore, the purpose of this study was to examine the effect of a Western-style diet (WSD) on memory and dendritic complexity of male Sprague Dawley rats. METHODS: Male Sprague-Dawley rats (n = 18) were fed either a control or WSD. Spatial memory and episodic memory were assessed using the Morris Water Maze and novel object recognition (NOR) tasks, respectively. At termination, brains were removed and prepared with the Golgi-Cox method. Stained neurons in both the hippocampus and entorhinal cortex (EC) were imaged and digitally reconstructed. RESULTS: Results indicated significant differences in percent body fat and TNFalpha levels between dietary conditions. WSD males also experienced reduced NOR exploration ratios, but no deficits in spatial memory were observed. Analysis of dendritic length and number of branch points revealed no significant differences in either the EC or the hippocampus; however, the Sholl analysis indicated that a WSD increased neuronal complexity in the EC. DISCUSSION: Sholl analysis of the EC suggests a possible diet-induced dysfunction of pruning, which may contribute to reduced performance on the NOR task. Elevated TNFalpha levels indicate a putative role of inflammation in neuronal remodeling. The results demonstrate the importance of investigating mechanisms underlying obesity-related cognitive impairments. PMID- 29039253 TI - Stakeholder-Driven Quality Improvement: A Compelling Force for Clinical Practice Guidelines. AB - Clinical practice guideline development should be driven by rigorous methodology, but what is less clear is where quality improvement enters the process: should it be a priority-guiding force, or should it enter only after recommendations are formulated? We argue for a stakeholder-driven approach to guideline development, with an overriding goal of quality improvement based on stakeholder perceptions of needs, uncertainties, and knowledge gaps. In contrast, the widely used topic driven approach, which often makes recommendations based only on randomized controlled trials, is driven by epidemiologic purity and evidence rigor, with quality improvement a downstream consideration. The advantages of a stakeholder driven versus a topic-driven approach are highlighted by comparisons of guidelines for otitis media with effusion, thyroid nodules, sepsis, and acute bacterial rhinosinusitis. These comparisons show that stakeholder-driven guidelines are more likely to address the quality improvement needs and pressing concerns of clinicians and patients, including understudied populations and patients with multiple chronic conditions. Conversely, a topic-driven approach often addresses "typical" patients, based on research that may not reflect the needs of high-risk groups excluded from studies because of ethical issues or a desire for purity of research design. PMID- 29039255 TI - Gaps Between Self-Rated Job Importance and Abilities for Community Health Workers in Massachusetts. AB - Introduction Community health workers (CHWs) serve increasingly active roles in clinical care and population health. To identify priorities for training programs, we developed a training needs assessment (TNA) tool by integrating and distilling core competencies previously identified by various national and state agencies. Methods CHWs were asked to self-rate, using a 4-point scale, the importance to their work and their ability to perform 49 competencies categorized under 10 domains. A difference score-Ability minus Importance-was calculated to determine relative Need. Results The 96 CHWs who completed the TNA were mostly female (80%) and Latino (40%). While CHWs indicated training was needed for all competencies, the scores ranged from -0.04 to -0.45, on a scale running from 0 to -3, where larger negative numbers indicate higher need. In general, there was a high level of congruence between individual competencies with high Need and domains with Need, with few outliers. Competencies with high Need scores related to culture, case assessment and coordination, and behavior change. CHWs rated client-based competencies higher than population health competencies in Ability scores (3.43 vs. 3.05, respectively) and Importance scores (3.70 vs. 3.35, respectively). However, overall Need scores showed no difference between client based and public health-based competencies. Conclusion CHWs can successfully rate the importance of core competencies to their work and rank their ability to perform these competencies. Training needs generally favored clinical individual client-focused skills over prevention and public health competencies. Using scales that incorporate self-rated measures of core competency ability and importance can inform priorities for CHW training programs and contribute to successful curriculum development. PMID- 29039256 TI - Ethical Considerations in Microbial Therapeutic Clinical Trials. AB - As understanding of the human microbiome improves, novel therapeutic targets to improve human health with microbial therapeutics will continue to expand. We outline key considerations of balancing risks and benefits, optimising access, returning key results to research participants, and potential conflicts of interest. PMID- 29039257 TI - First Description of Male and Larval Female of Parasitic Mite Eutarsopolipus abdominis (Acari: Podapolipidae) with Redescription of the Adult Female. AB - Male and larval female of the parasitic mite Eutarsopolipus abdominis Regenfuss, 1968 (Acari: Prostigmata: Podapolipidae) belonging to the myzus species group are described and illustrated for the first time on the basis of the materials recovered from under elytra of Agonum sp. (Coleoptera: Carabidae) from Mazandaran Province, northern Iran. A redescription of the adult female is also provided. It is the first record of this species from Asia and fourth representative of parasitic mites of the myzus species group found from Iran. Furthermore, this finding revealed the first record of the association between tribe Platynini (Coleoptera: Carabidae: Harpalinae) and mites of myzus species group, and one of the highest levels of polyxeny among mites of the genus Eutarsopolipus. PMID- 29039254 TI - The antidepressant efficacy of subanesthetic-dose ketamine does not correlate with baseline subcortical volumes in a replication sample with major depressive disorder. AB - BACKGROUND: This study sought to reproduce, in a larger sample, previous findings of a correlation between smaller raw 3-Tesla (3T) hippocampal volumes and improved antidepressant efficacy of ketamine in individuals with major depressive disorder (MDD). A secondary analysis stratified subjects according to functional BDNF rs6265 (val66met) genotype. METHODS: Unmedicated subjects with treatment resistant MDD ( n=55) underwent baseline structural 3T MRI. Data processing was conducted with FSL/FIRST and Freesurfer software. The amygdala, hippocampus, and thalamus were selected a priori for analysis. All subjects received a single 0.5mg/kg * 40-minute ketamine infusion. Pearson correlations were performed with subcortical volumes and percent change in MADRS score (from baseline to 230 minutes, 1 day, and 1 week post-infusion). RESULTS: Raw and corrected subcortical volumes did not correlate with antidepressant response at any timepoint. In val/val subjects ( n=23), corrected left and right thalamic volume positively correlated with antidepressant response to ketamine at 230 minutes post-infusion but did not reach statistical significance. In met carriers ( n=14), corrected left and right thalamic volume negatively correlated with antidepressant response to ketamine. CONCLUSION: Baseline subcortical volumes implicated in MDD did not correlate with ketamine's antidepressant efficacy. Baseline thalamic volume and BDNF genotype may be a combinatorial rapid antidepressant response biomarker. PMID- 29039258 TI - Diagnosis and Treatment of Laryngeal Schwannoma: A Systematic Review. AB - Objective This review summarizes the clinical features, diagnostic workup, and surgical treatment of laryngeal schwannoma with the aim of providing guidance for the management of this rare disease. The collated data allowed the statistical testing of several hypotheses, including the efficacy of endoscopic vs open surgical intervention and the usefulness of preoperative biopsy. Data Sources PubMed, Google Scholar, Cochrane, and SCOPUS. Review Methods Basic epidemiological and clinical presentation data were collated together with details of diagnostic image modality, lesion attributes, and the use of preoperative biopsy. Surgical approach to intervention and outcome was also collated and simple statistical analyses applied. Results The 60 original articles selected provided a combined cohort of 74 patients for review. The combined data revealed that schwannoma with pedunculated morphology were always safely removed by endoscopic resection regardless of size and should be treated as a separate entity. Of the nonpedunculated schwannoma, larger tumors were more likely to undergo an open approach, which in turn was associated with higher rates of tracheotomy and postoperative vocal fold paralysis. The small cohort did not reveal a significant association between surgery type and persistent disease. Interestingly, the data revealed a significant association between the use of incisional biopsy and persistent disease. Cases exhibiting extralaryngeal extension of the lesion were shown to exclusively belong to patients with neurofibromatosis/schwannomatosis syndromes. Conclusions Taken together, these findings suggest that incisional biopsy should be avoided, and given the benign nature of the pathology, the least invasive radical approach should be employed. PMID- 29039259 TI - Single-camera visual odometry to track a surgical X-ray C-arm base. AB - This study provides a framework for a single-camera odometry system for localizing a surgical C-arm base. An application-specific monocular visual odometry system (a downward-looking consumer-grade camera rigidly attached to the C-arm base) is proposed in this research. The cumulative dead-reckoning estimation of the base is extracted based on frame-to-frame homography estimation. Optical-flow results are utilized to feed the odometry. Online positional and orientation parameters are then reported. Positional accuracy of better than 2% (of the total traveled distance) for most of the cases and 4% for all the cases studied and angular accuracy of better than 2% (of absolute cumulative changes in orientation) were achieved with this method. This study provides a robust and accurate tracking framework that not only can be integrated with the current C-arm joint-tracking system (i.e. TC-arm) but also is capable of being employed for similar applications in other fields (e.g. robotics). PMID- 29039260 TI - Medicinal cannabis (Bedrolite) substitution therapy in inpatients with a psychotic disorder and a comorbid cannabis use disorder: A case series. AB - Cannabis use disorders are frequently comorbid in patients with a psychotic disorder and are associated with worse outcomes. To date there are no proven effective strategies to achieve cannabis abstinence in this population. An alternative for abstinence might be harm reduction, i.e. replacing the use of street cannabis with high tetrahydrocannabinol and low cannabidiol levels by medicinal cannabis variants with relatively low tetrahydrocannabinol and relatively high cannabidiol levels, thereby reducing the psychosis inducing effects of cannabis and enhancing the antipsychotic effects of cannabis. Here we present the data of a case series with seven inpatients diagnosed with a psychotic disorder and a treatment-resistant cannabis use disorder who received substitution therapy with a low tetrahydrocannabinol medicinal cannabis variant (Bedrolite). The results suggest that the low tetrahydrocannabinol medicinal cannabis variant Bedrolite is not effective in the treatment of inpatients with a psychotic disorder and comorbid cannabis use disorder. Bedrolite is thus not very likely to become an effective harm reduction strategy in these patients. PMID- 29039261 TI - One-Year Follow-up of the CAPO Kids Trial: Are Physical Benefits Maintained? AB - PURPOSE: To determine the 12-month maintenance of a 9-month, thrice-weekly, 10 minute high-intensity exercise program, delivered in schools, on bone and other health-related performance variables in prepubertal children. METHODS: All participants (N = 311) of the CAPO kids trial (testing times T1-T2) were contacted to undergo retesting (T3) of all original measures-including weight, standing and sitting height, calcaneal broadband ultrasound attenuation (Achilles, GE), and stiffness index (Achilles, GE)-waist circumference, resting heart rate, blood pressure, vertical jump, and aerobic capacity. Maturity was determined by estimating age of peak height velocity using sex-specific regression equations. RESULTS: A total of 240 children [12.3 (0.6) y old] were included in the current study (77% of initial follow-up sample at T2). Between the T2 and T3 time points, both exercise (EX) group and control (CON) group increased broadband ultrasound attenuation (EX: 5.6%, P <= .001; CON: 6.5%, P <= .001), stiffness index (EX: 7.3%, P <= .001; CON: 5.2%, P <= .001), vertical jump (EX: 5.9%, P <= .001; CON: 6.3%, P <= .001), estimated maximal oxygen consumption (EX: 13.3%, P <= .001; CON: 12.1%, P <= .001), and reduced waist circumference (EX: -5.2%, P <= .001; CON: -5.6%, P <= .001), with no between-group differences in the magnitude of those changes. No differences were detected in absolute values between groups at T3. CONCLUSION: Although the statistically significant differences observed between groups following the intervention were no longer significant 1 year after withdrawal of the intervention, the between-group similarities in growth trajectories of those parameters could suggest that some benefit of the intervention for bone health, waist circumference, and physical performance endured. PMID- 29039262 TI - Translating the Canadian Occupational Performance Measure to Danish, addressing face and content validity. AB - BACKGROUND: The Canadian Occupational Performance Measure (COPM) is a recognized assessment tool within Danish occupational therapy (OT), and translated versions of the COPM have been implemented in Danish OT practice. However, a rigorous translation and cross-cultural validation process has not been applied to these versions. AIMS: To produce a new Danish translation of the COPM evaluating its semantic, conceptual, operational and item equivalence while addressing its face and content validity. METHODS: An iterative, multistage translation process was undertaken with (1) forward translation involving professional translators and bilingual OTs, (2) pilot testing and cognitive debriefing interviews with 15 OTs and 37 clients which were analyzed quantitatively and qualitatively, and (3) finalization with adaptations, back translation and approval. RESULTS: Content validity of COPM in terms of appropriateness, acceptability, intelligibility and comprehensiveness was found in 78-100% of the cases, and its ability to ensure a client-centred focus in the assessment process was confirmed. However, issues concerning the administration and content of the COPM were identified. Subsequently, two recommendations regarding the administration of the COPM were added to the Danish version. CONCLUSION: Semantic, conceptual, operational and aspects of item equivalence of the COPM into Danish were achieved and supported by face and content validity. PMID- 29039263 TI - Integrating family planning services into HIV care: use of a point-of-care electronic medical record system in Lilongwe, Malawi. AB - BACKGROUND: Integrating family planning (FP) services into human immunodeficiency virus (HIV) clinical care helps improve access to contraceptives for women living with HIV. However, high patient volumes may limit providers' ability to counsel women about pregnancy risks and contraceptive options. OBJECTIVES: To assess trends in the use of contraceptive methods after implementing an electronic medical record (EMR) system with FP questions and determine the reasons for non use of contraceptives among women of reproductive age (15-49 years) receiving antiretroviral therapy (ART) at the Martin Preuss Center clinic in Malawi. METHODS: In February 2012, two FP questions were incorporated into the ART EMR system (initial FP EMR module) to prompt providers to offer contraceptives to women. In July 2013, additional questions were added to the FP EMR module (enhanced FP EMR) to prompt providers to assess risks of unintended pregnancies, solicit reasons for non-use of contraceptives and offer contraceptives to non pregnant women . We conducted a retrospective, longitudinal cohort study using the EMR routinely collected data. The primary outcome was the use of any modern contraceptive method. Descriptive statistics were used to describe the study population and report trends in contraceptive use during the initial and enhanced study periods. RESULTS: Between February 2012 and December 2016, in HIV clinics, 20,253 women of reproductive age received ART, resulting in 163,325 clinic visits observations. The proportion of women using contraceptives increased significantly from 18% to 39% between February 2012 and June 2013, and from 39% to 67% between July 2013 and December 2016 (chi-square for trend p < 0.001). Common reasons reported for the non-use of contraceptives among those at risk of unintended pregnancy were: pregnancy ambivalence (n = 234, 51%) and never thought about it (n = 133, 29%). CONCLUSION: Incorporating the FP EMR module into HIV clinical care prompted healthcare workers to encourage the use of contraceptives. PMID- 29039264 TI - "Football is a boys' game": children's perceptions about barriers for physical activity during recess time. AB - The aim of the study was to know the factors that influence boys and girls' perceptions for performing physical activity during playground recess from their own perspective. Ninety-eight schoolchildren aged 8-11 years from five schools from Cuenca (Spain) participated in 22 focus groups and carried out 98 drawings following the socioecological model as a theoretical framework. A content analysis of the transcripts from the focus groups and drawings was carried out by three researchers. Results showed that, in spite of boys and girls identified same barriers, there were gender differences in their perceptions. Gender socialization was the key as central category and helped to understand these differences. Boys preferred play football and this sport had a monopoly on the recess space. Weather was a barrier for boys. Girls and boys, who did not play football, were relegated to peripheral areas and lack of materials was a barrier for them. Teachers were a barrier for all children who did not play football. Thus, in order to promote recess physical activity, researchers, teachers and educational policy makers should take into account gender socialization and promote inclusive non-curricular physical activity in schools. PMID- 29039266 TI - Hand surgery in the Czech Republic. PMID- 29039267 TI - Letter and reply. PMID- 29039265 TI - HIV prevention trial design in an era of effective pre-exposure prophylaxis. AB - Pre-exposure prophylaxis (PrEP) has demonstrated remarkable effectiveness protecting at-risk individuals from HIV-1 infection. Despite this record of effectiveness, concerns persist about the diminished protective effect observed in women compared with men and the influence of adherence and risk behaviors on effectiveness in targeted subpopulations. Furthermore, the high prophylactic efficacy of the first PrEP agent, tenofovir disoproxil fumarate/emtricitabine (TDF/FTC), presents challenges for demonstrating the efficacy of new candidates. Trials of new agents would typically require use of non-inferiority (NI) designs in which acceptable efficacy for an experimental agent is determined using pre defined margins based on the efficacy of the proven active comparator (i.e. TDF/FTC) in placebo-controlled trials. Setting NI margins is a critical step in designing registrational studies. Under- or over-estimation of the margin can call into question the utility of the study in the registration package. The dependence on previous placebo-controlled trials introduces the same issues as external/historical controls. These issues will need to be addressed using trial design features such as re-estimated NI margins, enrichment strategies, run-in periods, crossover between study arms, and adaptive re-estimation of sample sizes. These measures and other innovations can help to ensure that new PrEP agents are made available to the public using stringent standards of evidence. PMID- 29039269 TI - Educational mission and international reach of the Journal. PMID- 29039268 TI - Correct reporting and interpretation of clinical data. PMID- 29039270 TI - Commentary on: The effect of adding active flexion to modified Kleinert regime on outcomes for zone 1 to 3 flexor tendon repairs. A prospective randomized trial. PMID- 29039271 TI - Social multiplier effects: academics' and practitioners' perspective on the benefits of a tuberculosis operational research capacity-building program in Indonesia. AB - BACKGROUND: The Tuberculosis Operational Research Group (TORG) implemented a capacity-building model involving academics and practitioners (i.e. clinicians or program staff) in an operational research (OR) team in Indonesia. OBJECTIVE: This study explored academics' and practitioners' perspectives regarding the benefits of participating in a tuberculosis (TB) OR capacity-building program in Indonesia. METHODS: We conducted a qualitative study involving in-depth interviews with 36 academics and 23 practitioners undertaking the TORG capacity building program. We asked open-ended questions about their experience of the program. Data were analyzed via content analysis. RESULTS: The findings demonstrated the social multiplier effects of the OR capacity-building program. Both academics and practitioners reported perceived improvements in research knowledge, skills, and experience, and described additional individual- and institutional-level benefits. The individual-level benefits level included improvements in understanding of the TB program, motivation for research and self satisfaction, the development/enhancement of individual networking, receipt of recognition, and new opportunities. The additional benefits reported at an institutional level included improvement in research curricula, in-house training, and program management and the development/enhancement of institutional partnerships. CONCLUSIONS: The program improved not only individuals' capacity for conducting OR but also the quality of the TB program management and public health education. OR should be included in research methodology curricula for postgraduate public health/disease control programs. The capacity-building model, in which academics and program staff collaborated within an OR team, should be promoted. PMID- 29039272 TI - Editorial: Precursors of Cardiovascular Disease in Adolescent Type 1 Diabetes. PMID- 29039273 TI - In vitro selection of Phytomonas serpens cells resistant to the calpain inhibitor MDL28170: alterations in fitness and expression of the major peptidases and efflux pumps. AB - The species Phytomonas serpens is known to express some molecules displaying similarity to those described in trypanosomatids pathogenic to humans, such as peptidases from Trypanosoma cruzi (cruzipain) and Leishmania spp. (gp63). In this work, a population of P. serpens resistant to the calpain inhibitor MDL28170 at 70 u m (MDLR population) was selected by culturing promastigotes in increasing concentrations of the drug. The only relevant ultrastructural difference between wild-type (WT) and MDLR promastigotes was the presence of microvesicles within the flagellar pocket of the latter. MDLR population also showed an increased reactivity to anti-cruzipain antibody as well as a higher papain-like proteolytic activity, while the expression of calpain-like molecules cross-reactive to anti Dm-calpain (from Drosophila melanogaster) antibody and calcium-dependent cysteine peptidase activity were decreased. Gp63-like molecules also presented a diminished expression in MDLR population, which is probably correlated to the reduction in the parasite adhesion to the salivary glands of the insect vector Oncopeltus fasciatus. A lower accumulation of Rhodamine 123 was detected in MDLR cells when compared with the WT population, a phenotype that was reversed when MDLR cells were treated with cyclosporin A and verapamil. Collectively, our results may help in the understanding of the roles of calpain inhibitors in trypanosomatids. PMID- 29039274 TI - Different Escherichia coli B2-ST131 clades (B and C) producing extended-spectrum beta-lactamases (ESBL) colonizing residents of Portuguese nursing homes. AB - ESBL-producing Enterobacteriaceae and particularly Escherichia coli ST131 isolates producing CTX-M enzymes are commonly found colonizing the intestine of nursing home (NH) residents, but ST131 subclonal structure has been scarcely explored in this vulnerable population. Our goal was to perform a pilot study to assess the faecal carriage rate and epidemiological features of ESBL- and/or carbapenemase-producing Enterobacteriaceae (ESBL-E and CPE, respectively) among NH residents. For this purpose, faecal samples from residents at 4 different NHs in the North of Portugal (representing 9.5% of the residents' population, July 2014) were screened for ESBL-E and/or CPE by phenotypic and genotypic methods. Clonal structure and plasmid typing of ESBL-producing E. coli (ESBL-Ec) was performed by PCR and sequencing. Four ESBL-Ec isolates (2 CTX-M-15/2 CTX-M-14) were found in 20% of the samples, all belonging to the pandemic clonal lineage B2 ST131-O25b:H4. Two different clades were identified, the C2/H30-Rx-virotype C producing CTX-M-15 and an atypical B/H22-like-virotype D5 (producing CTX-M-14 and fluoroquinolone-resistant), firstly described in Portugal. This pilot study highlights the role of NH residents as a source of different ST131 clades, besides emphasizing the importance of E. coli B2-ST131 subtyping in different clinical settings, and understanding the transmission dynamics of the different variants. PMID- 29039275 TI - Visuospatial Functioning in the Primary Progressive Aphasias. AB - OBJECTIVES: The aim of this study was to identify whether the three main primary progressive aphasia (PPA) variants would show differential profiles on measures of visuospatial cognition. We hypothesized that the logopenic variant would have the most difficulty across tasks requiring visuospatial and visual memory abilities. METHODS: PPA patients (n=156), diagnosed using current criteria, and controls were tested on a battery of tests tapping different aspects of visuospatial cognition. We compared the groups on an overall visuospatial factor; construction, immediate recall, delayed recall, and executive functioning composites; and on individual tests. Cross-sectional and longitudinal comparisons were made, adjusted for disease severity, age, and education. RESULTS: The logopenic variant had significantly lower scores on the visuospatial factor and the most impaired scores on all composites. The nonfluent variant had significant difficulty on all visuospatial composites except the delayed recall, which differentiated them from the logopenic variant. In contrast, the semantic variants performed poorly only on delayed recall of visual information. The logopenic and nonfluent variants showed decline in figure copying performance over time, whereas in the semantic variant, this skill was remarkably preserved. CONCLUSIONS: This extensive examination of performance on visuospatial tasks in the PPA variants solidifies some previous findings, for example, delayed recall of visual stimuli adds value in differential diagnosis between logopenic variant PPA and nonfluent variant PPA variants, and illuminates the possibility of common mechanisms that underlie both linguistic and non-linguistic deficits in the variants. Furthermore, this is the first study that has investigated visuospatial functioning over time in the PPA variants. (JINS, 2018, 24, 259-268). PMID- 29039276 TI - Sinus of Valsalva aneurysm rupture in an infant. AB - We present the case of a 10-month-old female with a right coronary sinus of Valsalva aneurysm with rupture into the right atrial appendage who presented with a murmur. Surgical repair was performed shortly after diagnosis with pericardial patch closure from within the aorta and closure of the right atrial rupture site. To our knowledge, this is the youngest child with sinus of Valsalva aneurysm with rupture to be identified in the literature. PMID- 29039277 TI - Is paliperidone palmitate more effective than other long-acting injectable antipsychotics? AB - BACKGROUND: Paliperidone palmitate is one of the most widely prescribed long acting injectable (LAI) antipsychotics in the UK. However, it is relatively expensive and there are few data comparing its effectiveness to that of other LAI antipsychotics. We sought to address this issue by analyzing a large anonymized electronic health record (EHR) dataset from patients treated with LAI antipsychotics. METHODS: EHR data were obtained from 1281 patients in the South London and Maudsley NHS Foundation Trust (SLaM) who started treatment with a LAI antipsychotic between 1 April 2011 and 31 January 2015. The number of days spent as a psychiatric inpatient and the number of admissions to a psychiatric hospital were analyzed in each of the 3 years before and after LAI prescription. RESULTS: Patients treated with paliperidone palmitate (n = 430; 33.6%) had a greater number of inpatient days and a greater number of admissions in the year prior to treatment than those treated with other LAI antipsychotics. Nevertheless, in the 3 years after initiation there were no significant differences between paliperidone and the other LAI antipsychotics in the number of days as an inpatient (B coefficient 5.4 days, 95% confidence interval (CI) -57.3 to 68.2, p = 0.86) or number of hospital admissions (Incidence rate ratio 1.07, 95% CI 0.62 to 1.83, p = 0.82). CONCLUSION: Paliperidone palmitate was more likely to be prescribed in patients with more frequent and lengthy hospital admissions prior to initiation. However, the absence of differences in outcomes after initiation indicates that paliperidone palmitate was not more effective than other cheaper LAI antipsychotics. PMID- 29039278 TI - Genetic correlations among milk yield, morphology, performance test traits and somatic cells in dual-purpose Rendena breed. AB - Selection in native local breeds needs great carefulness due to the small population size and the risk of inbreeding. Furthermore, most breeds are dual purpose, and milk and beef attitudes are antagonistic. For preservation purposes functional traits need to be considered. Focusing on the small local Rendena cattle, this study aimed to analyse the genetic correlations among milk, beef and udder health traits and the response to selection predicted under different scenarios. The study considered milk, fat and protein yields (MY), factor scores for udder volume (UV), conformation (UC) and muscularity obtained from type traits scored on primiparous cows, and performance test traits (PT) measured on young bulls at test station: average daily gain, in vivo SEUROP fleshiness, in vivo dressing percentage. Somatic cell score (SCS) was considered as a functional trait, with a possibility of restricting its genetic gain to zero. The study considered 281 497 MY test-day data collected on 16 974 cows, and data from linear type evaluation on 11 992 primiparous cows for factor scores. The PT data were recorded on 1428 young bulls, and SCS obtained from cell counts at milk recording. Bi-trait restricted maximum likelihood animal model analyses were performed to assess genetic parameters. Heritability varied from 0.157 (fat) to 0.442 (dressing percentage). Udder volume and MY resulted positively genetically correlated (average correlation 0.427), whereas the low-negative genetic correlation between MY and UC (-0.141) suggested a negative impact of milk gain on udder form. Beef traits of factor muscularity and PT showed medium-high favourable genetic correlations (from 0.357 to 0.984), excluding a null correlation between daily gain and muscularity. The genetic correlation MY v. muscularity was unfavourable (-0.328 on average), whereas null correlations were found in MY v. PT, apart from fat v. dressing percentage (-0.151). Somatic cell score showed low unfavourable correlations with protein (0.111) and UV (0.092), and favourable correlations with UC (-0.193). Response to selection in different scenarios indicated a good balanced gain for milk and beef when standardized economic weights of 0.66 and 0.34 are given to the two attitudes, and SCS genetic gain is restricted. Current genetic trends (MY and PT increasing, but muscularity lessening) reflect a stronger selection for milk, suggesting a slight progressive change towards a milk conformation. Aiming to preserve the dual-purpose characteristics of a breed, proper breeding policies taking into account the genetic relationships among traits and including functional traits should be applied in local dual-purpose populations. PMID- 29039279 TI - Estimation of the frequency of Q fever in sheep, goat and cattle herds in France: results of a 3-year study of the seroprevalence of Q fever and excretion level of Coxiella burnetii in abortive episodes. AB - A study was carried out, from 2012 to 2015, in 10 French departements to estimate the serological prevalence of Q fever and the frequency of abortive episodes potentially related to Coxiella burnetii in a large sample of cattle, sheep and goat herds. The serological survey covered 731 cattle, 522 sheep and 349 goat herds, randomly sampled. The frequency of abortive episodes potentially related to C. burnetii was estimated by investigating series of abortions in 2695 cattle, 658 sheep and 105 goat herds using quantitative polymerase chain reaction analyses and complementary serological results when needed. The average between herd seroprevalence was significantly lower for cattle (36.0%) than for sheep (55.7%) and goats (61.0%) and significantly higher for dairy herds (64.9% for cattle and 75.6% for sheep) than for meat herds (18.9% for cattle and 39.8% for sheep). Within-herd seroprevalence was also significantly higher for goats (41.5%) than for cattle (22.2%) and sheep (25.7%). During the study period, we estimated that 2.7% (n = 90), 6.2% (n = 48) and 16.7% (n = 19) of the abortive episodes investigated could be 'potentially related to C. burnetii'in cattle, sheep and goat herds, respectively. Overall, strong variability was observed between departements and species, suggesting that risk factors such as herd density and farming practices play a role in disease transmission and maintenance. PMID- 29039280 TI - Very long-chain n-3 fatty acids and human health: fact, fiction and the future. AB - EPA and DHA appear to be the most important n-3 fatty acids, but roles for n-3 docosapentaenoic acid are now also emerging. Intakes of EPA and DHA are usually low, typically below those recommended. Increased intakes result in higher concentrations of EPA and DHA in blood lipids, cells and tissues. Increased content of EPA and DHA modifies the structure of cell membranes and the function of membrane proteins. EPA and DHA modulate the production of lipid mediators and through effects on cell signalling can alter the patterns of gene expression. Through these mechanisms, EPA and DHA alter cell and tissue responsiveness in a way that often results in more optimal conditions for growth, development and maintenance of health. DHA has vital roles in brain and eye development and function. EPA and DHA have a wide range of physiological roles, which are linked to certain health or clinical benefits, particularly related to CVD, cancer, inflammation and neurocognitive function. The benefits of EPA and DHA are evident throughout the life course. Future research will include better identification of the determinants of variation of responses to increased intake of EPA and DHA; more in-depth dose-response studies of the effects of EPA and DHA; clearer identification of the specific roles of EPA, docosapentaenoic acid and DHA; testing strategies to enhance delivery of n-3 fatty acids to the bloodstream; and exploration of sustainable alternatives to fish-derived very long-chain n-3 fatty acids. PMID- 29039281 TI - Inhibitory effects of an extract from non-host plants on physiological characteristics of two major cabbage pests. AB - The diamondback moth (Plutella xylostella) and small white cabbage butterfly (Pieris rapae) are the two main serious pests of cruciferous crops (Brassicaceae) that have developed resistance to chemical control methods. In order to avoid such resistance and also the adverse effects of chemical pesticides on the environment, alternative methods have usually been suggested, including the use of plant enzyme inhibitors. Here, the inhibitory effects of proteinaceous inhibitors extracted from wheat, canola, sesame, bean and triticale were evaluated against the digestive alpha-amylases, larval growth, development and nutritional indecs of the diamondback moth and small white cabbage butterfly. Our results indicated that triticale and wheat extracts inhibited alpha-amylolytic activity in an alkaline pH, which is in accordance with the moth and butterfly gut alpha-amylase optimum pH. Dose-dependent inhibition of two crucifer pests by triticale and wheat was observed using spectrophotometry and gel electrophoresis. Implementation of specificity studies showed that wheat and triticale proteinaceous extract were inactive against Chinese and purple cabbage amylase. Triticale and wheat were resistant against insects' gut proteases. Results of the feeding bioassay indicated that triticale-proteinaceous extract could cause a significant reduction in survival and larval body mass. The results of the nutritional indecs also showed larvae of both species that fed on a Triticale proteinaceous inhibitor-treated diet had the lowest values for the efficiency of conversion of ingested food and relative growth rate. Our observations suggested that triticale shows promise for use in the management of crucifer pests. PMID- 29039282 TI - Spatial variation of pneumonia hospitalization risk in Twin Cities metro area, Minnesota. AB - Fine resolution spatial variability in pneumonia hospitalization may identify correlates with socioeconomic, demographic and environmental factors. We performed a retrospective study within the Fairview Health System network of Minnesota. Patients 2 months of age and older hospitalized with pneumonia between 2011 and 2015 were geocoded to their census block group, and pneumonia hospitalization risk was analyzed in relation to socioeconomic, demographic and environmental factors. Spatial analyses were performed using Esri's ArcGIS software, and multivariate Poisson regression was used. Hospital encounters of 17 840 patients were included in the analysis. Multivariate Poisson regression identified several significant associations, including a 40% increased risk of pneumonia hospitalization among census block groups with large, compared with small, populations of ?65 years, a 56% increased risk among census block groups in the bottom (first) quartile of median household income compared to the top (fourth) quartile, a 44% higher risk in the fourth quartile of average nitrogen dioxide emissions compared with the first quartile, and a 47% higher risk in the fourth quartile of average annual solar insolation compared to the first quartile. After adjusting for income, moving from the first to the second quartile of the race/ethnic diversity index resulted in a 21% significantly increased risk of pneumonia hospitalization. In conclusion, the risk of pneumonia hospitalization at the census-block level is associated with age, income, race/ethnic diversity index, air quality, and solar insolation, and varies by region-specific factors. Identifying correlates using fine spatial analysis provides opportunities for targeted prevention and control. PMID- 29039283 TI - Effects of between-person differences and within-person changes in symptoms of anxiety and depression on older age cognitive performance. AB - BACKGROUND: Anxiety and depression are both important correlates of cognitive function. However, longitudinal studies investigating how they covary with cognition within the same individual are scarce. We aimed to simultaneously estimate associations of between-person differences and within-person variability in anxiety and depression with cognitive performance in a sample of non-demented older people. METHODS: Participants in the Lothian Birth Cohort 1921 study, a population-based narrow-age sample (mean age at wave 1 = 79 years, n = 535), were examined on five occasions across 13 years. Anxiety and depression were measured with the Hospital Anxiety and Depression Scale (HADS) and cognitive performance was assessed with tests of reasoning, logical memory, and letter fluency. Data were analyzed using two-level linear mixed-effects models with within-person centering. RESULTS: Divergent patterns were observed for anxiety and depression. For anxiety, between-person differences were more influential; people who scored higher on HADS anxiety relative to other same-aged individuals demonstrated poorer cognitive performance on average. For depression, on the other hand, time varying within-person differences were more important; scoring higher than usual on HADS depression was associated with poorer cognitive performance relative to the average level for that participant. Adjusting for gender, childhood mental ability, emotional stability, and disease burden attenuated these associations. CONCLUSIONS: The results from this study highlight the importance of addressing both between- and within-person effects of negative mood and suggest that anxiety and depression affect cognitive function in different ways. The current findings have implications for assessment and treatment of older age cognitive deficits. PMID- 29039285 TI - Prospective risk factors for post-deployment heavy drinking and alcohol or substance use disorder among US Army soldiers. AB - BACKGROUND: Investigations of drinking behavior across military deployment cycles are scarce, and few prospective studies have examined risk factors for post deployment alcohol misuse. METHODS: Prevalence of alcohol misuse was estimated among 4645 US Army soldiers who participated in a longitudinal survey. Assessment occurred 1-2 months before soldiers deployed to Afghanistan in 2012 (T0), upon their return to the USA (T1), 3 months later (T2), and 9 months later (T3). Weights-adjusted logistic regression was used to evaluate associations of hypothesized risk factors with post-deployment incidence and persistence of heavy drinking (HD) (consuming 5 + alcoholic drinks at least 1-2*/week) and alcohol or substance use disorder (AUD/SUD). RESULTS: Prevalence of past-month HD at T0, T2, and T3 was 23.3% (s.e. = 0.7%), 26.1% (s.e. = 0.8%), and 22.3% (s.e. = 0.7%); corresponding estimates for any binge drinking (BD) were 52.5% (s.e. = 1.0%), 52.5% (s.e. = 1.0%), and 41.3% (s.e. = 0.9%). Greater personal life stress during deployment (e.g., relationship, family, or financial problems) - but not combat stress - was associated with new onset of HD at T2 [per standard score increase: adjusted odds ratio (AOR) = 1.20, 95% CI 1.06-1.35, p = 0.003]; incidence of AUD/SUD at T2 (AOR = 1.54, 95% CI 1.25-1.89, p < 0.0005); and persistence of AUD/SUD at T2 and T3 (AOR = 1.30, 95% CI 1.08-1.56, p = 0.005). Any BD pre deployment was associated with post-deployment onset of HD (AOR = 3.21, 95% CI 2.57-4.02, p < 0.0005) and AUD/SUD (AOR = 1.85, 95% CI 1.27-2.70, p = 0.001). CONCLUSIONS: Alcohol misuse is common during the months preceding and following deployment. Timely intervention aimed at alleviating/managing personal stressors or curbing risky drinking might reduce risk of alcohol-related problems post deployment. PMID- 29039284 TI - The association between diurnal temperature range and childhood hand, foot, and mouth disease: a distributed lag non-linear analysis. AB - In recent years, hand, foot, and mouth disease (HFMD) has been increasingly recognized as a critical challenge to disease control and prevention in China. Previous studies have found that meteorological factors such as mean temperature and relative humidity were associated with HFMD. However, little is known about whether the diurnal temperature range (DTR) has any impact on HFMD. This study aimed to quantify the impact of DTR on childhood HFMD in 18 cities in Sichuan Province. A distributed lag non-linear model was adopted to explore the temporal lagged association of daily temperature with age-, gender- and pathogen-specific HFMD. A total of 290 123 HFMD cases aged 0-14 years were reported in the 18 cities in Sichuan Province. The DTR-HFMD relationships were non-linear in all subgroups. Children aged 6-14 years and male children were more vulnerable to the temperature changes. Large DTR had the higher risk estimates of HFMD incidence in cases of EV71 infection, while small DTR had the higher risk estimates of HFMD incidence in cases of CV-A16 infection. Our study suggested that DTR played an important role in the transmission of HFMD with non-linear and delayed effects. PMID- 29039286 TI - Relationship between carcass traits, prime cuts and carcass grading from foals slaughtered at the age of 13 and 26 months and supplemented with standard and linseed-rich feed. AB - In order to improve foal carcass quality, it is necessary in particular to improve the carcass dressing percentage and tissue composition. Thus, it is important to establish relationships between grading systems and these parameters. This research was conducted to study the effect of slaughter age (13 v. 26 months) and finishing feed (standard v. linseed feed) on carcass characteristics such as subcutaneous fat colour plus classification of foals for the degree of fatness and conformation. For this study, 46 foals of crossbred genotype (Galician Mountain*Burguete) were used. Finishing feed did not affect any parameter, whereas slaughter age influenced all parameters (P<0.05). The oldest foals had higher carcass measurements, 13% more of meat, 4% more of bone, 12% more of fat, and 4% and 9% bigger fore- and hindquarter, respectively. Consequently, bigger valuable prime cuts were obtained. Nevertheless, the meat : bone ratio was very similar for both 13- and 26-month-old foals (2.88). Most of 26-month-old foals were classified in 'E' (Extra) and '5' (Complete fat cover) categories of conformation and degree of fatness. Most of the carcasses showed subcutaneous fat described as yellowish-white irrespective of age or diet. A regression model found that conformation (36%) and degree of fatness (33%) in live animals was positively linked with carcass tissue composition. It is therefore suggested that producers aim for older slaughter ages than 13 months and that the foal meat industry establishes grading systems to predict carcass quality. Further studies should be necessary to find the optimal slaughter age to obtain carcasses in the best categories of degree of fatness and conformation. New studies should be recommended to improve the meat : bone ratio of foal carcasses as it estimates the aptitude for meat production. PMID- 29039287 TI - Strongyloides stercoralis seroprevalence in Vietnam. AB - Strongyloidiasis is a neglected tropical disease caused by the roundworm Strongyloides stercoralis affecting 30-100 million people worldwide. Many Southeast-Asian countries report a high prevalence of S. stercoralis infection, but there are little data from Vietnam. Here, we evaluated the seroprevalence of S. stercoralis related to geography, sex and age in Vietnam through serological testing of anonymized sera. Sera (n = 1710, 1340 adults and 270 children) from an anonymized age-stratified serum bank from four regions in Vietnam between 2012 and 2013 were tested using a commercial Strongyloides ratti immunoglobulin G ELISA. Seroreactivity was found in 29.1% (390/1340) of adults and 5.5% (15/270) of children. Male adults were more frequently seroreactive than females (33.3% vs. 24.9%, P = 0.001). The rural central highlands had the highest seroprevalence (42.4% of adults). Seroreactivity in the other regions was 29.9% (Hue) and 26.0% and 18.2% in the large urban centres of Hanoi and Ho Chi Minh City, respectively. We conclude that seroprevalence of S. stercoralis was high in the Vietnamese adult population, especially in rural areas. PMID- 29039288 TI - Molecular and morphological characterization of Belondira coomansi n. sp. (Nematoda: Dorylaimida, Belondiridae) from Iran. AB - A new species belonging to the genus Belondira is described from natural areas in Iran. Belondira coomansi n. sp. is characterized by its general size, the dimensions and appearance of its lip region, presence of distinct labial and post labial sclerotization, the length of the odontostyle and its inconspicuous lumen and aperture, the length of the neck and its pharyngeal expansion, the reduction of the female anterior genital branch to a simple uterine sac, a very short posterior uterus, the anterior position of the vulva, the length and shape of the caudal region with distinctly thick cuticle at its tip, the length of the spicules, and the presence of only one pair of ventromedian supplements. The new species is close to Belondira brevibulba, B. sacchari, B. tenuidens and B. thornei, and it is compared to them. Molecular characterization (D2-D3 expansion segments of the rRNA large subunit) of the new species is also provided, representing only the second species of this genus for which any DNA sequence data are available. PMID- 29039289 TI - Death by suicide at the Ward level in Northern Ireland. AB - BACKGROUND: Deaths from suicide, as recorded within the Northern Ireland Coroner's Office for the years 2005-2011 inclusive, were analysed in terms of standardised mortality ratios (SMRs), within Wards and Local Government Districts (LGDs). The aim of the study is to examine factors relating to the ecological context of the area within which the person resided at time of death. Area deprivation, religious composition and age structure are examined in terms of SMRs, while controlling for the number of individuals living within a designated area. METHODS: Random-intercept Poisson regression models were used in conjunction with empirical Bayes prediction to examine area effects. RESULTS: Considerable variation occurs between the numbers of recorded deaths within each area. A strong association is shown between deprivation and the number of deaths by suicide within an area. There was considerable variation at the LGD level in terms of the number of deaths, but once the nested nature of Wards was taken into account and adjusted for level of deprivation, the variation between LGD was no longer statistically significant. When adjusted for the number of individuals within each age group, the number of deaths in the younger and middle-aged groups did not show a statistical difference (0.05 level), nor did the religious composition of the area in terms of the number of recorded deaths. CONCLUSIONS: Based on SMRs, using empirical Bayes prediction, area effects were shown to be substantial, especially in urban locations where there are high rates of deprivation. PMID- 29039290 TI - Simulated-Use Polytetrafluorethylene Biofilm Model: Repeated Rounds of Complete Reprocessing Lead to Accumulation of Organic Debris and Viable Bacteria. AB - OBJECTIVE Biofilm has been implicated in bacterial persistence and survival after endoscope reprocessing. In this study, we assessed the impact of different methods of reprocessing on organic residues and viable bacteria after repeated rounds of biofilm formation when each was followed by full reprocessing. METHODS ATS-2015, an artificial test soil containing 5-8 Log10 colony-forming units (CFU) of Enterococcus faecalis and Pseudomonas aeruginosa, was used to form biofilm in polytetrafluroethylene channels overnight on 5 successive days. Each successive day, full pump-assisted cleaning using bristle brushes or pull-through devices in combination with enzymatic or nonenzymatic detergents followed by fully automated endoscope reprocessor disinfection using peracetic acid was performed. Residuals were visualized by scanning electron microscopy (SEM). Destructive testing was used to assess expected cutoffs for adenosine triphosphate (ATP; <200 relative light units), protein (<2 ug/cm2), and viable bacteria count (0 CFU). RESULTS Protein residuals were above 2 ug/cm2, but ATP residuals were <200 relative light units for all methods tested. Only when enzymatic cleaner was used for cleaning were there no viable bacteria detected after disinfection irrespective of whether bristle brushes or pull-through devices were used. SEM revealed that some residual debris remained after all reprocessing methods, but more residuals were detected when a nonenzymatic detergent was used. CONCLUSIONS Surviving E. faecalis and P. aeruginosa were only detected when the non-enzymatic detergent was used, emphasizing the importance of the detergent used for endoscope channel reprocessing. Preventing biofilm formation is critical because not all current reprocessing methods can reliably eliminate viable bacteria within the biofilm matrix. Infect Control Hosp Epidemiol 2017;38:1284-1290. PMID- 29039291 TI - Asset Literacy Following Stroke: Implications for Disaster Resilience. AB - OBJECTIVE: The World Stroke Organization "1 in 6" campaign aims to raise awareness that 1 in 6 persons will experience a stroke during their lifetime. With aging populations and improved survival rates, an increased number of survivors live with functional limitations and require supportive care. This has important implications for implementing an all-of-society approach to disaster risk reduction. In this study, we explore the assets that stroke survivors and caregivers consider useful in supporting their capacity to manage routine activities and independent living and to respond to a disaster. METHODS: Transcripts from interviews with stroke survivors and caregivers were analyzed by use of content analysis. RESULTS: Assets were categorized into 4 classes: social, physical, energy, and personal characteristics and are presented as a household map. Emergent themes suggested that understanding how to mobilize assets is complicated yet essential for building resilience. Household resilience requires people have self-efficacy and motivation to move from awareness to action. The findings informed development of a conceptual model of asset literacy and household resilience following stroke. CONCLUSIONS: Interventions to enhance asset literacy can support an all-of-society approach to disaster risk reduction through awareness, empowerment, participation, innovation, and engagement. (Disaster Med Public Health Preparedness. 2018; 12: 312-320). PMID- 29039292 TI - An innovative short-stay health care model for treatment of uncomplicated vaso occlusive crisis in adult sickle cell disease patients in Canada to reduce emergency department utilization. AB - OBJECTIVES: Patients with sickle cell disease (SCD) with vaso-occlusive crises (VOC) often visit the emergency department (ED) for management of painful episodes. The primary objective of this pilot study was to evaluate the acceptability of a short-stay model for treatment of VOC in SCD outside of the ED in Toronto, Canada. Secondary objectives were to assess patient satisfaction of this model, barriers to its use and comparison of clinical outcomes to a historical control. METHODS: Adult SCD patients with symptoms of an uncomplicated VOC between October 2014 to July 2016 were managed according to best practice recommendations in a short-stay unit as an alternative to the local emergency room. Primary outcome of time to first analgesia, and secondary outcome of discharge rate were compared to a historical control at a local ED from 2009 2012. Satisfaction and barriers to use of the ambulatory care delivery model were assessed by patient survey. RESULTS: Twenty-one visits were recorded at the short stay unit during the study period. Average time to first opiate dose was 23.5 minutes in the short-stay unit compared to 100.3 minutes in the ED (p<0.001). Discharge rate from the short-stay unit was 84.2%. Average patient satisfaction with this model of care was high (>4/5 on Likert scale) except for geographic accessibility (85% response rate, n=18). CONCLUSION: This study demonstrated high patient satisfaction and acceptability of a short-stay model for treatment of uncomplicated VOC in adult SCD patients in Toronto, the first of its kind in Canada. PMID- 29039293 TI - Conflict and cooperation in paranoia: a large-scale behavioural experiment. AB - BACKGROUND: Paranoia involves thoughts and beliefs about the harmful intent of others but the social consequences have been much less studied. We investigated whether paranoia predicts maladaptive social behaviour in terms of cooperative and punitive behaviour using experimental game theory paradigms, and examined whether reduced cooperation is best explained in terms of distrust as previous studies have claimed. METHODS: We recruited a large population sample (N = 2132) online. All participants completed the Green et al. Paranoid Thoughts Scale and (i) a Dictator Game and (ii) an Ultimatum Game, the former with an option for costly punishment. Following distrust-based accounts, we predicted highly paranoid people would make higher offers when the outcome depended on receiving a positive response from their partner (Ultimatum Game) but no difference when the partner's response was irrelevant (Dictator Game). We also predicted paranoia would increase punitive responses. Predictions were pre-registered in advance of data collection. Data and materials are open access. RESULTS: Highly paranoid participants actually made lower offers than non-paranoid participants both in the Dictator Game and in the Ultimatum Game. Paranoia positively predicted punitive responses. CONCLUSIONS: These findings suggest that distrust is not the best explanation for reduced cooperation in paranoia and alternative explanations, such as increased self-interest, may apply. However, the tendency to attribute harmful intent to partners was important in motivating punitive responses. These results highlight differing motivations underlying adverse social behaviour in paranoia and suggest that accounts based solely on the presenting features of paranoia may need to be rethought. PMID- 29039294 TI - A Comparison of Heritability Estimates by Classical Twin Modeling and Based on Genome-Wide Genetic Relatedness for Cardiac Conduction Traits. AB - Twin studies have found that ~50% of variance in electrocardiogram (ECG) traits can be explained by genetic factors. However, genetic variants identified through genome-wide association studies explain less than 10% of the total trait variability. Some have argued that the equal environment assumption for the classical twin model might be invalid, resulting in inflated narrow-sense heritability (h 2) estimates, thus explaining part of the 'missing h 2'. Genomic relatedness restricted maximum likelihood (GREML) estimation overcomes this issue. This method uses both family data and genome-wide coverage of common SNPs to determine the degree of relatedness between individuals to estimate both h 2 explained by common SNPs and total h 2. The aim of the current study is to characterize more reliably than previously possible ECG trait h 2 using GREML estimation, and to compare these outcomes to those of the classical twin model. We analyzed ECG traits (heart rate, PR interval, QRS duration, RV5+SV1, QTc interval, Sokolow-Lyon product, and Cornell product) in up to 3,133 twins from the TwinsUK cohort and derived h 2 estimates by both methods. GREML yielded h 2 estimates between 47% and 68%. Classical twin modeling provided similar h 2 estimates, except for the Cornell product, for which the best fit included no genetic factors. We found no evidence that the classical twin model leads to inflated h 2 estimates. Therefore, our study confirms the validity of the equal environment assumption for monozygotic and dizygotic twins and supports the robust basis for future studies exploring genetic variants responsible for the variance of ECG traits. PMID- 29039295 TI - Effects of feeding low fishmeal diets with increasing soybean meal levels on growth, gut histology and plasma biochemistry of sea bass. AB - The aquaculture industry depends upon the development of sustainable protein sources to replace fishmeal (FM) in aquafeeds and the products derived from soybeans are some of the most studied plant feedstuffs. A key area of investigation for continuing to improve modern aquafeeds includes the evaluation of varying proportions and combinations of plant ingredients to identify mixtures that are more efficiently utilized by the fish. This study investigated the effects of increasing soybean meal (SBM) by replacing a mix of plant ingredients in low FM (20%) diets on growth, blood biochemistry profile and gut histology on European sea bass. Five isonitrogenous and isolipidic experimental diets were formulated: four diets containing increasing SBM levels (0, 10, 20 and 30%; 0SBM, 10SBM, 20SBM and 30SBM, respectively) with a low content of FM (20%) and one control diet (0% SBM; 35% FM). Diets containing SBM brought to comparable performance and protein utilization, while 0SBM had negative impact on feed conversion rate and protein utilization. Blood parameters suggested an optimal nutritional status under all feeding treatments, even though slightly decreased values were reported at increasing dietary SBM. Histology examination did not show any changes indicative of soy-induced enteritis. We can conclude that for European sea bass: (i) different blends of plant protein did not affect feed intake despite the 20% FM dietary level; (ii) the inclusion of SBM maintains optimal growth and feed utilization in low FM diets; (iii) blood biochemistry profile showed a good nutritional status under all feeding regimes; (iv) no evidence of soy-induced enteritis was reported in any group fed low FM diets. For formulation of practical diets in on-growing of European sea bass, SBM up to 30% can be successfully incorporated into feeds containing low FM inclusion. PMID- 29039296 TI - Effect of human milk formula with bovine colostrum supplementation on bone mineral density in infant cynomolgus macaques. AB - Insulin-like growth factor 1 (IGF1) is a regulator of human growth during infancy and childhood, known to promote bone and muscle growth as well as lipid accumulation. This study aimed to investigate the effects of formula milk with or without IGF1 supplementation (in the form of pure IGF1 or bovine colostrum) on growth and body composition in infant cynomolgus macaques during the first 6 months of life. Three groups of infants were nursery-reared and received formula milk with or without IGF1 or bovine colostrum supplementation for 4 months, and a fourth group consisting of breast-fed infants was included for comparison (n=6 for each group). Ranked-based analysis of covariance was used to detect differences between adjusted means for sex. No differences in weight, height, fat mass, and fat-free mass could be detected between groups. However, bone mineral density (BMD) was significantly different between groups at the end of formula feeding. Infants that received bovine colostrum supplementation displayed higher mean BMD than infants of all other groups, with no differences between the latter three groups. In conclusion, our results suggest that supplementation with bovine colostrum can enhance BMD in formula-fed infants, an effect that apparently does not depend on IGF1. Bovine colostrum supplementation could be beneficial for long term bone health in infants with suboptimal bone growth. PMID- 29039297 TI - The impact of periconceptional alcohol exposure on fat preference and gene expression in the mesolimbic reward pathway in adult rat offspring. AB - Alcohol consumption around the time of conception is highly prevalent in Western countries. Exposure to ethanol levels during gestation has been associated with altered development of the mesolimbic reward pathway in rats and increased propensity to addiction, however the effect of exposure only around the time of conception is unknown. The current study investigated the effects of periconceptional alcohol exposure (PC:EtOH) on alcohol and palatable food preferences and gene expression in the ventral tegmental area (VTA) and the nucleus accumbens of the adult offspring. Rats were exposed to a liquid diet containing ethanol (EtOH) (12.5% vol/vol) or a control diet from 4 days before mating until 4 days after mating. PC:EtOH had no effect on alcohol preference in either sex. At 15 months of age, however, male PC:EtOH offspring consumed more high-fat food when compared with male control offspring, but this preference was not observed in females. Expression of the dopamine receptor type 1 (Drd1a) was lower in the VTA of male PC:EtOH offspring compared with their control counterparts. There was no effect of PC:EtOH on mRNA expression of the u-opioid receptor, tyrosine hydroxylase (Th), dopamine receptor type 2 (Drd2) or dopamine active transporter (Slc6a3). These data support the hypothesis that periconceptional alcohol exposure can alter expression of key components of the mesolimbic reward pathway and heighten the preference of offspring for palatable foods and may therefore increase their propensity towards diet-induced obesity. These results highlight the importance of alcohol avoidance when planning a pregnancy. PMID- 29039298 TI - Application of bioelectrical impedance analysis in prediction of light kid carcass and muscle chemical composition. AB - Carcass data were collected from 24 kids (average live weight of 12.5+/-5.5 kg; range 4.5 to 22.4 kg) of Jarmelista Portuguese native breed, to evaluate bioelectrical impedance analysis (BIA) as a technique for prediction of light kid carcass and muscle chemical composition. Resistance (Rs, Omega) and reactance (Xc, Omega), were measured in the cold carcasses with a single frequency bioelectrical impedance analyzer and, together with impedance (Z, Omega), two electrical volume measurements (VolA and VolB, cm2/Omega), carcass cold weight (CCW), carcass compactness and several carcass linear measurements were fitted as independent variables to predict carcass composition by stepwise regression analysis. The amount of variation explained by VolA and VolB only reached a significant level (P<0.01 and P<0.05, respectively) for muscle weight, moisture, protein and fat-free soft tissue content, even so with low accuracy, with VolA providing the best results (0.326?R 2?0.366). Quite differently, individual BIA parameters (Rs, Xc and Z) explained a very large amount of variation in dissectible carcass fat weight (0.814?R 2?0.862; P<0.01). These individual BIA parameters also explained a large amount of variation in subcutaneous and intermuscular fat weights (respectively 0.749?R 2?0.793 and 0.718?R 2?0.760; P<0.01), and in muscle chemical fat weight (0.663?R 2?0.684; P<0.01). Still significant but much lower was the variation in muscle, moisture, protein and fat free soft tissue weights (0.344?R 2?0.393; P<0.01) explained by BIA parameters. Still, the best models for estimation of muscle, moisture, protein and fat-free soft tissue weights included Rs in addition to CCW, and accounted for 97.1% to 99.8% (P<0.01) of the variation observed, with CCW by itself accounting for 97.0% to 99.6% (P<0.01) of that variation. Resistance was the only independent variable selected for the best model predicting subcutaneous fat weight. It was also selected for the best models predicting carcass fat weight (combined with carcass length, CL; R 2=0.943; P<0.01) and intermuscular fat weight (combined with CCW; R 2=0.945; P<0.01). The best model predicting muscle chemical fat weight combined CCW and Z, explaining 85.6% (P<0.01) of the variation observed. These results indicate BIA as a useful tool for prediction of light kids' carcass composition. PMID- 29039299 TI - Factors associated with passive immunity transfer in dairy calves: combined effect of delivery time, amount and quality of the first colostrum meal. AB - Despite the well-known importance of an adequate colostral immunoglobulin (Ig) transfer to calf health and survival, failed transfer of passive immunity (FTPI) remains a widespread problem in dairy farming. The aim of this study was to investigate the management factors associated with FTPI in newborn calves, evaluating particularly the combined effect of delivery time, amount and quality of the first colostrum meal. The study was conducted from March to August 2014 on 21 Italian dairy farms. Farmers were asked as first to answer a farm-level questionnaire on calf management. Blood sampling was then performed on overall 244 calves (1 to 5 days of age) born from Holstein cows, and a sample of the first colostrum meal of each calf was collected. Individual information on calves and the respective colostrum management were recorded. Serum and colostrum Ig concentrations were assessed by electrophoresis. A mixed effects multivariable logistic regression model was used to investigate the association of the variables obtained from both the management questionnaire and the individual calf data with FTPI (calf serum Ig concentration 87.6 g/l) within 1.0 h from birth. Considerable improvements are still needed about colostrum management for newborn calves in dairy farms. The results of this study will help in developing farm specific programs for reducing the occurrence of FTPI. PMID- 29039300 TI - Disaster Preparedness of Child Care Teachers: A Cross-Sectional Study in South Korea. AB - OBJECTIVE: We aimed to identify the differences in personal disaster preparedness and disaster risk perception among child care and preschool teachers in South Korea by using demographic characteristics and disaster-related questions. METHODS: A cross-sectional self-reporting questionnaire was administered from February to October 2014. RESULTS: Of all the participants, 68.1% had received disaster preparedness education and training on 2 or more occasions per year; 13.2% had received no education or training. Personal disaster preparedness differed significantly by marital status (P<0.05), the number of disaster education and training sessions attended (P<0.05), and having purchased home insurance (P<0.001). Disaster risk perception differed significantly by children's age group under a teacher's care (P<0.05). The topic on which child care teachers wanted more training was "fractures and bleeding emergency care" (53.9%). The most probable disaster was considered to be a typhoon (66.0%). CONCLUSIONS: Disaster preparedness is important for both young children and their teachers. Field-based teacher disaster preparedness education and training should be provided so that they can respond effectively to disaster occurrence regardless of type, time, or location. (Disaster Med Public Health Preparedness. 2018; 12: 321-328). PMID- 29039301 TI - Populational and individual perspective on needs. PMID- 29039302 TI - OXA-48 and CTX-M-15 extended-spectrum beta-lactamases in raw milk in Lebanon: epidemic spread of dominant Klebsiella pneumoniae clones. AB - Raw milk has recently been reported as a source of extended-spectrum beta lactamase (ESBL) and carbapenemase genes. We thus investigated the prevalence of ESBL- and carbapenemase-producing Enterobacteriaceae in raw milk in Lebanon in order to assess the risk of transfer of these bacteria to humans. A high prevalence (30.2 %) of CTX-M-15-producing K. pneumoniae was detected in raw bovine milk. Three main K. pneumoniae clones were identified by PFGE and MLST typing. Southern blot experiments revealed that one of these clones carried the blaCTX-M-15 gene chromosomally. Moreover, one OXA-48-producing K. pneumoniae ST530 and seven CTX-M-15-producing Escherichia coli sharing the same ST were also detected. These findings highlight the spread of dominant CTX-M-15-producing K. pneumoniae clones and OXA-48-producing isolates in the food chain. Milk, which is mostly consumed raw in Lebanon, may be a source of human exposure to ESBLs and carbapenemases. PMID- 29039303 TI - Paraferrimonas haliotis sp. nov., isolated from the intestine of abalone, Haliotis discus hannai and emendation of description of the genus Paraferrimonas. AB - Two strains, AFRC7-2-1T and CFD7-4-2, were isolated from the intestine of abalone, Haliotis discus hannai. The bacterial cells were Gram-stain-negative, stick-shaped and non-flagellated. They were facultative anaerobic bacteria and could reduce Fe(III) to Fe(II). The 16S rRNA genes of two strains shared 99.7 % sequence similarity, and had the highest similarity of 97.3-97.5 % with Paraferrimonas sedimenticola NBRC 101628T, and of <94.0 % with other species. Phylogenetic relationship showed that the two strains formed a tight clade with an isolate Paraferrimonas sp. CGB11 obtained from the intestine of small abalone, H. diversicolor, and P. sedimenticola NBRC 101628T. The resulted DNA-DNA hybridization (DDH) values of strains AFRC7-2-1T and CFD7-4-2 compared with P. sedimenticola NBRC 101628T was 18.8-18.9 %. The resultant average nucleotide identity (ANI) values of AFRC7-2-1T and CFD7-4-2 compared with P. sedimenticola NBRC 101628T was 71.3-71.5 %. The predominant fatty acids (>5 %) of strains AFRC7 2-1T and CFD7-4-2 were iso-C15 : 0, iso-C13 : 0, C14 : 0, C16 : 0, C17 : 1omega8c and summed feature 3 (C16 : 1omega7c/C16 : 1omega6c). The quinone system of strains AFRC7-2-1T and CFD7-4-2 were quinone-8, menaquinone-6, menaquinone-7, and quinone-7. The predominant polar lipids of strain AFRC7-2-1T were identified as phosphatidylethanolamine (PE), phosphatidylglycerol (PG), one unidentified phospholipid (PL), and three minor unidentified lipids (Ls). The genomic DNA G+C contents of two strains were 47.2 mol%. In summary, the two strains represented a novel species of the genus Paraferrimonas, for which the name Paraferrimonas haliotis sp. nov. was proposed, with type strain AFRC7-2-1T (=MCCC 1A11748T=KCTC 52632T=NBRC 112785T) and strain CFD7-4-2 (=MCCC 1A11749=KCTC 52631=NBRC 112786). PMID- 29039304 TI - Desulfonatronum parangueonense sp. nov., a sulfate-reducing bacterium isolated from sediment of an alkaline crater lake. AB - Novel Gram-stain-negative, non-spore-forming, vibrio-shaped, anaerobic, alkaliphilic, sulfate-reducing bacteria, designated strains PAR180T and PAR190, were isolated from sediments collected at an alkaline crater lake in Guanajuato (Mexico). Strain PAR180T grew at temperatures between 15 and 40 degrees C (optimum 35 degrees C), and at pH between 8.3 and 10.4 (optimum 9). It was halotolerant, growing with up to 8 % (w/v) NaCl. Lactate, formate, pyruvate and ethanol were used as electron donors in the presence of sulfate and were incompletely oxidized to acetate and CO2. The isolate was able to grow with hydrogen and with CO2 as a carbon source. Beside sulfate, sulfite and thiosulfate were used as terminal electron acceptors. The isolate was able to grow by disproportionation of sulfite and thiosulfate, but not elemental sulfur, using acetate as a carbon source. The predominant fatty acids were C16 : 0, C16 : 1omega7c and summed feature 10 (C18 : 1omega7c and/or C18 : 1omega9t and/or C18 : 1omega12t). The DNA G+C content was 56.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that it belongs to the genus Desulfonatronum, class Deltaproteobacteria. Its closest relative is Desulfonatronum thiosulfatophilum (98.7 % 16S rRNA gene sequence similarity). The DNA-DNA relatedness value between strain PAR180T and the type strain of D. thiosulfatophilum was 37.1+/-2.5 %. On the basis of phylogenetic, phenotypic and chemotaxonomic characteristics, the isolates is considered to represent a novel species of the genus Desulfonatronum, for which the name Desulfonatronum parangueonense sp. nov. is proposed. The type strain is PAR180T (=DSM 103602T=JCM 31598T). PMID- 29039305 TI - Changing epidemiology of Pneumocystis pneumonia, Northern Ireland, UK and implications for prevention, 1 July 2011-31 July 2012. AB - PURPOSE: There is a lack of consensus about which non-human immunodeficiency virus (HIV) patient groups would benefit from prophylaxis. Here, we analysed an enhanced Pneumocystis jirovecii database to describe the epidemiology of Pneumocystis pneumonia (PCP) and P. jirovecii colonizations in Northern Ireland (NI) with a view to identifying risk groups who may benefit from prophylaxis. METHODOLOGY: We prospectively collected information on demographics, clinical severity and clinical features for all hospital inpatients in NI aged >=18 years with P. jirovecii confirmed in any respiratory tract sample. We defined P. jirovecii colonization or PCP according to clinical symptoms and radiological findings. We compared P. jirovecii colonization to PCP using exact logistic regression and presented the odds ratios (OR), 95 % confidence intervals (CI) and likelihood ratio test P-values.Results/Key findings. Overall, 36/49 (73 %) of P. jirovecii detections were categorized as PCP. A total of 28/36 (78 %) were in non HIV patients, of which 18 (64 %) had cancer. The odds of PCP compared to P. jirovecii colonization were eight times higher in those with current exposure to chemotherapy (OR 8.73; 95 % CI 0.84, infinity), 16 times higher for those diagnosed with HIV (OR 16.2; 95 % CI 1.71, infinity) and 12 times higher for those ever exposed to another immunosuppressive drug (OR 12.1; 95 % CI 1.94, infinity). CONCLUSION: The greatest burden of PCP is now in the non-HIV group, particularly cancer patients. We recommend increasing clinician awareness of PCP risk and strengthening prevention guidelines in non-HIV patients, and promoting the consideration of prophylaxis on a case-by-case basis. PMID- 29039306 TI - Paenibacillus azotifigens sp. nov., a novel nitrogen-fixing bacterium isolated from paddy soil. AB - A nitrogen-fixing bacterium, designated NF2-4-5T, was isolated from a paddy soil in Anseong City, Korea. Cells of strain NF2-4-5T were Gram-staining-positive, motile rods and aerobic. Phylogenetic analysis based on 16S rRNA gene sequence comparison revealed that the strain formed a distinct lineage within the genus Paenibacillus and was closely related to Paenibacillus graminis RSA19T (98.7 %), Paenibacillus jilunlii Be17T (98.6 %), Paenibacillus salinicaeni LAM0A28T (98.6 %) and Paenibacillus riograndensis SBR5T (98.6 %). Growth of strain NF2-4-5T occurs at temperatures of 18-37 degrees C, at pH 6.0-8.5 and between 0.5% and 2 % NaCl (w/v). The only respiratory quinone was MK-7. The cell wall peptidoglycan of strain NF2-4-5T contained meso-diaminopimelic acid. The main cellular fatty acids were C16 : 0 and anteiso-C15 : 0. The major polar lipids were diphosphatidylglycerol (DPG), phosphatidylglycerol (PG) and phosphatidylethanolamine (PE). The DNA G+C content was 56.36 mol%. The DNA-DNA hybridization relatedness between strain NF2-4-5T and four reference strains, Paenibacillus graminis RSA19T, Paenibacillus jilunlii Be17T, Paenibacillus sonchi X19-5T and Paenibacillus riograndensis SBR5T, was 22.0+/-0.3, 20.1+/-0.7, 18.3+/ 0.3 and 12.6+/-0.5 %, respectively. The phenotypic, phylogenetic and chemotaxonomic results indicate that the strain NF2-4-5T represents a novel species of the genus Paenibacillus, for which the name Paenibacillus azotifigens sp. nov. is proposed. The type strain is NF2-4-5T (=KACC 18967T=LMG 29963T). PMID- 29039307 TI - Monoglobus pectinilyticus gen. nov., sp. nov., a pectinolytic bacterium isolated from human faeces. AB - A novel anaerobic pectinolytic bacterium (strain 14T) was isolated from human faeces. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 14T belonged to the family Ruminococcaceae, but was located separately from known clostridial clusters within the taxon. The closest cultured relative of strain 14T was Acetivibrio cellulolyticus (89.7 % sequence similarity). Strain 14T shared ~99 % sequence similarity with cloned 16S rRNA gene sequences from uncultured bacteria derived from the human gut. Cells were Gram-stain-positive, non-motile cocci approximately 0.6 um in diameter. Strain 14T fermented pectins from citrus peel, apple, and kiwifruit as well as carbohydrates that are constituents of pectins and hemicellulose, such as galacturonic acid, xylose, and arabinose. TEM images of strain 14T, cultured in association with plant tissues, suggested extracellular fibrolytic activity associated with the bacterial cells, forming zones of degradation in the pectin-rich regions of middle lamella. Phylogenetic and phenotypic analysis supported the differentiation of strain 14T as a novel genus in the family Ruminococcaceae. The name Monoglobus pectinilyticus gen. nov., sp. nov. is proposed; the type strain is 14T (JCM 31914T=DSM 104782T). PMID- 29039309 TI - Ultra-low contrast percutaneous coronary intervention in patients with severe chronic kidney disease. PMID- 29039308 TI - Actibacterium pelagium sp. nov., a novel alphaproteobacterium, and emended description of the genus Actibacterium. AB - A Gram-stain-negative, non-motile, rod-shaped bacterium, designated JN33T, was isolated from seawater collected from the western Pacific Ocean. Strain JN33T was positive for hydrolysis of aesculin and gelatin. On the basis of 16S rRNA gene sequence analysis, strain JN33T showed high 16S rRNA gene sequence similarity to Actibacterium atlanticum 22II-S11-z10T (97.3 %), A. mucosum KCTC 23349T (96.6 %) and A. ureilyticum LS-811T (95.7 %) and exhibited less than 97.0 % 16S rRNA gene sequence similarity with respect to the other type strains within the family Rhodobacteraceae. Phylogenetic analysis revealed that strain JN33T fell within the cluster of the genus Actibacterium. The average nucleotide identity and in silico DNA-DNA hybridization values between strain JN33T and the type strains of Actibacterium species were 73.1-73.8 % and 19.8-20.1 %, respectively. The sole respiratory quinone was ubiquinone 10 (Q-10). The principal fatty acids were summed feature 8 (C18 : 1omega7c and/or C18 : 1omega6c) and C16 : 0. The major polar lipids were phosphatidylglycerol, one unidentified phospholipid and two unidentified aminolipids. The DNA G+C content was 57.8 mol%. Distinctly different phylogenetic characteristics, chemotaxonomic differences, as well as phenotypic properties, revealed that strain JN33T could be differentiated from the Actibacterium species with validly published names. Therefore, it is proposed that strain JN33T represents a novel species of the genus Actibacterium, for which the name Actibacterium pelagium sp. nov. (type strain, JN33T=CGMCC 1.16012T=KCTC 52653T) is proposed. PMID- 29039310 TI - Effect of protective devices on the radiation dose received by the brains of interventional cardiologists. AB - AIMS: This study aimed to evaluate the effectiveness of ceiling suspended screens, lead glasses and lead caps in reducing radiation doses to the brains of interventional cardiologists. METHODS AND RESULTS: Interventional procedures where the thorax of the patient is irradiated with different beam projections were modelled. The dose reduction in the white matter and hippocampus of the Zubal head phantom was studied for two sizes of ceiling suspended screens, two types of lead glasses and lead caps of surgical and hood models, which cover different regions of the head. Ceiling screens were the most effective, reducing the dose to brain tissue by 74% or even as much as 94%. The dose reduction provided by lead glasses varies between 10% and 17%. For the lead caps, it strongly depends on the model, varying from 6% (surgical) up to 68% (hood that also covered lower parts of the head). CONCLUSIONS: The dose to the brain can be reduced by using appropriate radiation protection devices. This study has shown that lead caps are less protective than previously described and that the best protection is given by ceiling suspended screens, which are widely available in interventional theatres. PMID- 29039312 TI - Left atrial appendage closure: size does matter! PMID- 29039311 TI - Percutaneous biventricular cardiac assist device in cardiogenic shock and refractory cardiac arrest. PMID- 29039313 TI - Transcatheter aortic valve replacement in patients with non-calcific aortic stenosis. AB - AIMS: Limited information exists describing the results of transcatheter aortic valve replacement (TAVR) in patients with symptomatic severe non-calcific aortic stenosis (AS). We aimed to compare procedural, echocardiographic, and clinical outcomes among patients with non-calcific AS with those of senile calcific AS undergoing TAVR. METHODS AND RESULTS: We retrospectively identified patients with non-calcific AS who received TAVR with self-expanding transcatheter heart valves in our centre. Clinical and echocardiographic outcomes, and post-procedural multi detector computed tomography (MDCT) measures were compared to those in patients undergoing TAVR for calcific AS. Among 136 patients, 21 patients (15.4%) with native leaflet thickening and minimal calcification were identified (non-calcific group). The patients were significantly younger in the non-calcific group (70.0 [64.0-75.5] vs. 75.0 [69.0-78.0] years) with comparable STS-PROM scores (6.7 [4.8 8.9] vs. 8.2 [4.8-10.9] %). Predilation was performed less frequently (42.9% vs. 93.9%) and post-dilation more often (71.4% vs. 42.6%) in the non-calcific group. Both 30-day and one-year mortality were similar between groups (0% vs. 7.8% and 0% vs. 17.6%). Rates of post-implantation paravalvular leak >=mild at six months (17.6% vs. 25.7%) were comparable despite lower implantation depth among non calcific AS patients (10.9+/-5.7 vs. 7.2+/-4.3 mm) on post-implantation MDCT. CONCLUSIONS: TAVR with self-expanding transcatheter heart valves appears to be safe and effective in patients with non-calcific AS. PMID- 29039314 TI - Effects of puerarin on lipopolysaccharide-induced myocardial dysfunction in isolated rat hearts. AB - Myocardial dysfunction is a serious complication induced by sepsis. Puerarin is an oriental medicine that possesses therapeutic benefits for cardiovascular diseases. The aim of this study was to evaluate the anti-myocardial dysfunction effects of puerarin in isolated rat hearts induced by lipopolysaccharide- and compare the myocardial protective effects between the different concentrations of puerarin. Isolated hearts were attached to a Langendorff apparatus and perfused with lipopolysaccharide (LPS) and different concentrations of puerarin. The hemodynamic parameters of heart rate (HR), left ventricular end systolic pressure [LVESP], +dp/dtmax, and -dp/dtmax were recorded. The biochemical indexes of lactic dehydrogenase (LDH), tumor necrosis factor alpha (TNF-alpha), and creatine kinase (CK) in the coronary effluent were measured at 40, 90, and 120 min of perfusion. TNF-alpha in myocardial tissues was measured after perfusion was completed. As a result, puerarin (0.24 MUmmol/L-0.48 MUmmol/L) significantly increased LVESP, +dp/dtmax, -dp/dtmax, and HR in isolated rat hearts that were declined by LPS during perfusion periods. Puerarin could protect against increased LDH, CK, and TNF-alpha in coronary effluent of isolated rat hearts by LPS during perfusion periods. Treatment of 0.48 MUmmol/L puerarin significantly decreased the TNF-alpha in coronary effluent of isolated rat hearts compared with the treatment of 0.12 and 0.24 MUmmol/L puerarin, but the TNF-alpha values were not reverted to baseline levels. However, the difference of TNF-alpha in myocardial tissue in the three puerarin-combined groups was statistically significant. This study confirms that puerarin can improve LPS-induced contractile dysfunction in isolated heart and inhibit LPS-stimulated myocardial TNF-alpha production. PMID- 29039315 TI - Prevention of liver cirrhosis by Silymarin. AB - This study was designed to evaluate the effects of sylimarin supplementation on different biochemical parameters in thioacetamide induced cirrhotic rats. For this purpose 24 male Albino wistar rats were divided into four groups (n=6). Group I, remained healthy control rats, Group II, received thioacetamide (at a dose of 200mg/kg b.w, i.p, for 12 weeks, twice a week) in first phase and saline in second phase, Group III, received thioacetamide (200mg/kg b.w, i.p for 12 weeks, twice a week) in first phase and silymarin (orally at a dosage of 200mg/kg b.w, twice a week, for 8 weeks) in second phase and Group IV, received silymarin (orally at a dosage of 200mg/kg b.w, twice a week, for 8 weeks) in first phase and saline in second phase. Biochemical analysis was evaluated by total and direct bilirubin (Retiman and Franhel, 1957, Sherlock, 1951), liver specific enzymes, antioxidant enzymes [SOD (Kono et al., 1978), Catalase (Sinha et al., 1979), Glutathione reductase (Calberg and Mannervik, 1985) and MDA (Okhawa et al., 1979)] and plasma and intraerythrocyte sodium and potassium (Tabssum et al., 1996). Marked increase in total and direct bilirubin and ALT activity was the indicative markers of liver cirrhosis while reduced antioxidant activity (SOD and GSH) and increased MDA and Catalase levels and disturbed electrolyte homeostasis were observed in cirrhotic group. Silymarin supplementation markedly reduced total bilirubin and ALT activity and restored the antioxidant enzymes (SOD and GSH), MDA and catalase activity and electrolyte homeostasis. These results indicate that silymarin successively attenuates the thioacetamide induced liver cirrhosis. PMID- 29039316 TI - In vivo anti-inflammatory and anti-platelet aggregation activities of longissiminone A, isolated from Usnea longissima. AB - Secondary metabolite, longissiminone A (1) was isolated from a lichen, Usnea longissima. It was screened for its' in vivo anti-inflammatroy and anti-platelet aggregation activities. Compound 1 showed moderate in vivo anti-inflammatory activity as well as moderately active against the aggregation induced by arachidonic acid at different doses. PMID- 29039317 TI - Progression pattern of rheumatoid arthritis: A study of 500 Pakistani patients. AB - To estimate the most prevalent age of patients and disease status and progression in terms of severity at different age groups in the Pakistani Rheumatoid Arthritis (RA) patients. A total of five hundred (500) RA patients were enrolled during October, 2009 to October, 2013. A screening questionnaire was filled for each patient satisfying America College of Rheumatology (ACR) criteria under the supervision of certified rheumatologists. Epidemiological and demographic variables were statistically analyzed for correlation with progression of the disease using SPSS ver 17.0.1 software. In general, rheumatoid arthritis preferentially affects women with female to male ratio of about 3:1; however, patients with above 60 years of age have equal female to male ratio. The most prevalent age is 45-60 years. The disease severity increases with increase in the age and reaches to its peak in above 60 years of age (p=0.001). The pattern of progression of RA in the Pakistani patients is almost consistent with other relevant studies conducted on European and European derived populations. PMID- 29039318 TI - Enhancing the in vitro release of total flavonoids extract from Dracocephalum moldavuca composite phospholipid liposomes optimized by response surface methodology. AB - The present study was undertaken to optimize the preparation conditions of total flavonoids extract from Dracocephalum Moldavuca composite phospholipid liposome (TFDMCPL) by response surface methodology (RSM) and to investigate the in vitro release (IVR) of TFDMCPL. Method of ethanol injection was adopted to prepare TFDMCPL. The single factor experiments were used for the key experimental factors and their test range. Based on the single factor experiments, with encapsulation efficiency (EE) Size of TFDMCPL and polymey disperse index (PDI) as dependent variable, central composite design was adopted to optimize preparation technology by taking content of phospholipid and content of cholesterol as independent variables, fitting of various mathematical equations were performed using a statisitical software of Design-Expert 8.0.6. Preparation parameters were optimized through response surface plotted by optimum fitting equations, optimized procedure was validated through experimental preparation of TFDMCPL. Optimum preparation technology was as following: phospholipid 505mg and cholesterol 50mg. Under these condition, encapsulation efficiency was 90.2+/ 1.2%, size of TFDMCPL was 115.6+/-4.3nm, PDI was 0.169+/-0.015 and Zeta potential was -15.38+/-0.5. These indicated that TFDMCPL with high entrapping efficiency and small particle size could be prepared by the ethanol injection method. And TFDMCPL were found to enhance the release of drugs more effectively than TFDM based on the in vitro model. PMID- 29039319 TI - Heavy metals identification and exposure at workplace environment its extent of accumulation in blood of iron and steel recycling foundry workers of Lahore, Pakistan. AB - The determination of heavy metals in blood is an important occupational environmental toxicology screening procedure. The aim of study was to determine the concentrations of Pb, Cd, Cr and Ni in blood samples of iron and steel foundry workplace exposed workers under routine clinical laboratory conditions. The method was employed for the quantitative determination of lead, cadmium, chromium and nickel in workplace environment particulate matter blood samples from iron and steel foundry workers and in unexposed controls. The results indicate that lead, chromium and nickel levels of the exposed workers are significantly higher those of the controls. Nickel Concentration (MUg/L) in high P value=0.0306 and Chromium Concentration (MUg/L) in P value=0.0295in worker population as compared to controls. Lead showed highest Absorption concentration in serum from particulate matter to Serum 47.3(MUg/L). Absorption concentration of nickel in serum 16.5(MUg/L) was lower than lead observed in worker's population. Absorption concentration of cadmium and chromium in serum from particulate matter -152(MUg/L) observed very low. The results also show the need for immediate improvements in workplace ventilation and industrial hygiene practices. PMID- 29039320 TI - Pharmacokinetic and bioequivalence studies of fast dispersible ketoprofen tablets in healthy volunteers. AB - In the present study the pharmacokinetic and bioequivalence parameter of Ketoprofen 100 mg fast dispersible tablets (test) were measured with marketed (reference) product. This study was accomplished following FDA guidance. A single dose, open labeled, cross over (two way), randomized study design was used to conduct investigation on 12 Pakistani healthy volunteers. At various time points blood samples (10mL) were drawn i.e. at 0.25, 0.5, 1, 1.5, 2, 3, 4, 8, 12 and 13hr. Plasma was then separated and ketoprofen concentrations were estimated by validated HPLC technique using LC 20A pump (Shimadzu Corp, Japan) and Spectrophotometric SPD-20Adetector (Shimadzu Corp, Japan). Ketoprofen concentrations were then analyzed by KineticaTM 4.4.1 (Thermo electron corp, USA) to estimate various compartmental and noncompartmental pharmacokinetic parameters. Various parameters of bioequivalence including AUCtot, AUC0-oo, AUClast, Tmaxcalc and Cmaxcalcw ere compared using ANOVA method (two way). For log and non-log transformed data the 90% confidence interval values for AUC oo0 oo, (1.0087-1.0704; 1.0099-1.0714), AUC tot , (0.95482- 1.0093; 0.95486-1.0098), AUClast (0.93373-0.98605; 0.93404-0.98603), Cmaxcalc (0.92978-0.9955; 0.92962 0.99663) and Tmaxcalc (0.89019-0.94116; 0.89095-0.94288) for test and reference products respectively. Results were found to be within the FDA satisfactory range. For the results verification, Schuirman's one sided t test was used. SPSS 17.0 (SPSS Inc.) was utilized for the determination of wilcoxon sign rank test. Results showed no carry over effect after first study period. Also test product met the regulatory criteria for bioequivalence with the reference product. Both the formulations were well tolerated. PMID- 29039321 TI - Assessment of thyroid hormone levels and thyroid disorders: A case study from Gujranwala, Pakistan. AB - This case study is conducted to investigate the thyroid hormone levels and relevant disorders including evaluation of dietary conditions in the rural area of Gujranwala and its surrounding districts. Thyroid disorders are clinically prevalent and their manifestation differs considerably with geographical variations. A randomized study of 177 subjects was carried out, with a questionnaire about their dietary habits/life style and acquisition of blood samples for thyroid hormone level assessment using radioimmunoassay technique. This study was permitted by the local ethics committee and an informed consent was obtained from the patients. Study of normally distributed population with p value less than <0.005 and mean age 32.67+/-13 years demonstrated that 37% female and 43% males were hyperthyroid with elevated levels of FT3and FT4. Amongst the diagnosed cases of hyperthyroidism 47% females and 33% of males were using Iodized salt with 50ug/ppm increased concentration of KIO3 in their diet without any prescription. Furthermore, 60% of diagnosed hypothyroid cases were having no iodine supplementation in their diet. Thyroid function problems are more common in females (N=137) than males (N=40) but the severity of this disease was found to be more pronounced in males as the TSH level (33.13+/-22.73) was twice that as compared to females (17.63+/-18.15). Despite a high prevalence of recognized thyroid disease in the population a considerable number of inhabitants have undiagnosed thyroid dysfunction. These findings necessities wider scale studies for the mapping of thyroid behavior and the contributing factors for this region with a population of more than 20 million. PMID- 29039322 TI - Antiviral activity of Salidroside from the leaves of Nigerian mistletoe (Loranthus micranthus Linn) parasitic on Hevea brasiliensis against respiratory syncytial virus. AB - Isolated Salidroside from the leaves of Nigerian mistletoe (Loranthus micranthus Linn) parasitic on Hevea brasiliensis was evaluated for its antiviral activity against respiratory syncytial virus. Semi- preparative HPLC separation of the ethyl acetate fraction of the leave extract of Loranthus micranthus Linn parasitic on Hevea brasiliensis led to the isolation of a polyphenol. Using spectroscopic methods (1D and 2D NMR and mass spectroscopic data) as well as by comparison with literature data the structure of the compound was determined as 6 O-galloyl salidroside. The antiviral activity of the isolated compound was evaluated against the respiratory syncytial virus. The isolated Salidroside showed potent inhibition towards a recombinant straining respiratory syncytial virus with Inhibitory Concentration (IC 50) value of 10.3+/-1.50 MUg/mL. The result indicates that Salidroside is an efficient antiviral agent against RSV infection and might be useful for the management of RSV pathogenesis. PMID- 29039323 TI - Antipyretic effects of hydro-methanol extract of Melia azedarach Linn. seeds and Cucumis melo Linn. seeds in experimental rabbits. AB - To investigate the antipyretic activity of hydro-methanol extract of Melia azedarach Linn. (HMEMA) seeds and Cucumis melo Linn. (HMECM) seeds in experimental animals. Baker's yeast was used to induce fever in rabbits which were divided into six groups. The animal groups were thereafter administered distilled water (control), paracetamol (reference standard, 150mg/kg), HMEMA (250mg/kg), HMEMA (500mg/kg), HMECM (250mg/kg) and HMECM (500mg/kg) respectively. HMEMA and HMECM were also phytochemically screened for tannins, alkaloids, phenols, flavonoids, saponins and cardiac glycosides. Results indicate that hydro methanol extract of M. azedarach Linn. Seeds (250mg/kg and 500mg/kg) significantly (p<0.001, p<0.05 respectively) reduced the elevated body temperature in dose dependant manner. Insignificant to no antipyretic effect was produced by hydro-methanol extract of Cucumis melo L. seeds. Phytochemical analysis of the HMEMA showed the presence of flavonoids, saponins, tannins, phenols, alkaloids and cardiac glycosides While HMECM was positive for flavonoids, phenols and saponins. The result shows that there exists a potential benefit in utilizing Melia azedarach L. seeds in treating fever. This property can be attributed to the presence of phytochemical constituents present in the hydro-methanol extract of Melia azedarach L. seeds and the exact mechanism need to be evaluated. PMID- 29039324 TI - Synthesis, pharmacological screening and computational analysis of some 2-(1H Indol-3-yl)-N'-[(un)substituted phenylmethylidene] acetohydrazides and 2-(1H Indol-3-yl)-N'-[(un)substituted benzoyl/2-thienylcarbonyl]acetohydrazides. AB - The undertaken research was initiated by transforming 2-(1H-Indol-3-yl)acetic acid (1) in catalytic amount of sulfuric acid and ethanol to ethyl 2-(1H-Indol-3 yl)acetate (2), which was then reacted with hydrazine monohydrate in methanol to form 2-(1H-Indol-3-yl)acetohydrazide (3). Further, The reaction scheme was designed into two pathways where, first pathway involved The reaction of 3 with substituted aromatic aldehydes (4a-o) in methanol with few drops of glacial acetic acid to generate 2-(1H-Indol-3-yl)-N' [(un)substitutedphenylmethylidene]acetohydrazides (5a-o) and in second pathway 3 was reacted with acyl halides (6a-e) in basic aqueous medium (pH 9-10) to afford 2-(1H-Indol-3-yl)-N'-[(un)substitutedbenzoyl/2-thienylcarbonyl]acetohydrazides (7a-e). All The synthesized derivatives were characterized by IR, EI-MS and 1H NMR spectral techniques and evaluated for their anti-bacterial potentials against Gram positive and Gram negative bacterial strains and it was found that compounds 7a-d exhibited antibacterial activities very close to standard Ciprofloxacin. The synthesized derivatives demonstrated moderate to weak anti-enzymatic potential against alpha-Glucosidase and Butyrylcholinesterase (BChE) where, compounds 7c and 5c exhibited comparatively better inhibition against these enzymes respectively. Compounds 7a, 7d and 7e showed excellent anti-enzymatic potentials against Lipoxygenase (LOX) and their IC50 values were much lower than the reference standard Baicalein. Enzyme inhibitory activities were also supported by computational docking results. Compounds 5c, 7a, 7b and 7c also showed low values of % hemolytic activity as well, showing that these molecules were not toxic, indicating that these molecules can be utilized as potential therapeutic agents against inflammatory ailments. PMID- 29039325 TI - Comparative role of pregabalin and carbamazepine regarding efficacy in painful diabetic neuropathy. AB - Neuropathic pain is the most severe and resistant type of pain which has impact on quality of life and behaviour; it most commonly occurs at night causing disturbed sleep. Diabetes mellitus is a common cause of painful neuropathy. In this study, we are comparing the effectiveness of old treatment Carbamazepine with Pregabalin in painful diabetic neuropathy. The study was an open-label trial conducted in Diabetic Clinic of Medical Unit-III, Jinnah Post-graduate Medical Center, Karachi. The duration of the study was 90 days, from December 2010 to March 2011. The study has been approved from ethical committee of JPMC, Karachi with the reference NO.F.2-81/2010-GENL/195/JPMC. 60 established patients of painful diabetic peripheral neuropathy from Diabetic Clinic of Medical Unit-III OPD were included in the 90-day study, irrespective of gender, with duration of diabetes more than 10 years. All subjects are placed into two groups. In group A, comprising of 30 patients (n=30), Pregabalin was administered and in group B, also comprising of 30 patients (n=30), Carbamazepine. The intensity of pain was compared on visual analog scale of McGill pain questionnaire. In group A (Pregabalin), the mean pain score fell from 6.17+/-0.14 to 3.50+/-0.15 from day 0 to day 90 (p-value=0.001) and the percentage of change also in visual analog scale of McGill pain questionnaire was -43.31%. In group B (Carbamazepine), the changes in pain score from initially 6.07+/-0.14 falling to 4.23+/-0.13 from day 0 to day 90 (p-value=0.001) and the percentage of change was -30.31%. Pregabalin was observed to be more potent. Both drugs were well tolerated by all participants that also completed the entire duration of the trial. PMID- 29039326 TI - In vitro effects and the related molecular mechanism of galangin and quercetin on human gastric cancer cell line (SGC-7901). AB - Natural flavonoids are proven to be powerful against various cancers, but few studies have investigated the potential effects of two flavonoids galangin and quercetin on a human gastric cancer cell line (SGC-7901). In vitro growth inhibition and apoptosis of the two flavonoids on the SGC-7901 cells as well as potential mechanism about apoptosis induction are reported in the present study. The assaying results showed that the two flavonoids at 40-200 MUmmol/L for 24-72 hours conferred lower cell viability of 14.1-90.3% in dose- and time-dependent manner, and at 160 MUmmol/L for 24-48 hours enhanced the proportion of apoptotic cells into 13.3-27.4% and 40.6-65.6%, respectively. Galangin was more powerful than quercetin to inhibit cell growth, induce apoptosis and decrease mitochondrial membrane potential (MMP). Oligonucleotide micro array, real-time RT PCR and Western-blot analyses revealed expression changes of the genes and proteins in the treated cells, clarifying a mechanism related to apoptosis induction. The two flavonoids activated caspase-8, which cleaved Bid into tBid; simultaneously, Bax transferred from cytosol into mitochondria to decrease MMP; consequentially, cytochrome c released from mitochondria activated caspase-9, and then caspase-9 activated caspase-3, which executed the apoptosis. That is, the apoptosis occurred via a mitochondrial pathway involving caspase-8/Bid/Bax activation. PMID- 29039327 TI - Formulation of lyophilized single vial kit of N-N-Ethylene-L-Dicysteine (EC) for labeling with 99mTc. II: Radiochemical and clinical evaluation as a renal tubular agent in comparison with 99mTc-MAG3. AB - A Technetium 99mTc labeled lyophilized single component kit of N-N-ethylene-I dicysteine (EC) is developed to replace multiple step kit developed by others. The aim of study is to formulate a radionuclide that is easy to prepare, has rapid plasma clearance, produce high quality images and is an affective alternative to radioiodine labeled orthoiodohippurate, which has been remained the physiological 'gold standard' since long time. To achieve this goal, the systematically varied key parameters such as pH, the use of reducing agents, stabilizers and additives are optimized to obtain maximum radiochemical purity and optimum biodistribution in non human and human primates. Various pH levels of EC showed equally good results in animal experiments but only pH 10 was suitable for human use. Dynamic and renal Scintigraphic studies are carried out with 99mTc EC at pH 8 in 12 volunteers and at pH 10 in 18 volunteers and compared with 99mTc MAG3, Background ratios, renograms, relative renal function and semi quantitative parameters are available in all studies. The background ratios (mean +/- SD) at 30th minute are 0229+/-0.024 and 0.236+/-0.018 for 99mTc-EC at pH 10 and 99mTc MAG3 respectively. The mean +/- standard error of mean (SEM) values of TMAX and time to half activity (T12) for 99mTc-EC (pH10) are 3.7+/-0.6 and 7.3+/-1.0 respectively while for 99mTc-MAG3, they are 4.0+/-0.8 and 7.9+/-1.4 with p values 0.001 and 0.049 respectively. The values of relative renal function (RRF) for 99mTc-EC and 99mTc-MAG3 are 50.8+/-3.11 and 51.2+/-3.4 respectively with p value of 0.822. The residual activity at 25th minute (A25 / A MAX) and renal uptake are 0. 209+/-12.67+/-2.80 for 99mTc-EC and 0.218+/-0.035 and 1053+/-2.98 for 99mTc MAG3 (p=0.031 an 0.0003) respectively. The correlation coefficient (R2) for TMAX, T1/2, A25/AMAX and renal uptake are 0.96, 0.69, 0.93 and 0.85 respectively. PMID- 29039328 TI - Synergistic interactions of polyphenols and their effect on antiradical potential. AB - The aim of the current study was to evaluate interactions among polyphenols from different plants and their effect on antioxidant potential. Different mixtures of plant extracts of Crataegus oxyacantha (C), Elettaria cardamomum (Cr), Terminalia arjuna (T) and Rauvolfia serpentina (R) were prepared and evaluated for total phenolics, flavonoid contents, and antioxidant activity. A correlation was also established between total phenolics, flavonoids and antioxidant activity. Comparative evaluation revealed that phenolics, flavonoids and antioxidant activity were found high in plant extracts mixtures than individual plants. Highest phenolics (580+/-1.12mg GAE/g), flavonoids (67.10+/-0.11mg CE/g) and antioxidant activity (IC50 0.109mg/ml) was observed with ratio 1:1:1:2 of plant mixture C, Cr, T, R. A weak linear positive correlation was found between antioxidant activity, total phenolic and flavonoid contents. A negative correlation was observed among IC50 value, total phenolics and flavonoid contents. Investigation through RP-HPLC revealed the presence of different potent phenolics in plants understudy. More antioxidant potential of extracts in combinations as compared to that of individual plants was clear corroboration of synergism. The ratio (1:1:1:2) of the studied plants in combination, that showed the highest free radical potential, was another expected better pharmacological prospect. This formulation can bring maximum relief against free radical associated diseases. PMID- 29039329 TI - Synthesis, characterization, antioxidant and brine shrimp cytotoxic activity of novel 3-benzothioyl-1-(3-hydroxy-3-phenyl -3-propyl)-1-methylthiourea. AB - In the present research work novel ephedrine based thiourea derivative, 3 benzothioyl-1-(3-hydroxy-3-phenyl -3-propyl)-1-methylthiourea 4is synthesized and then characterized elemental analyzed via various techniques i.e., Proton NMR, carbon13 NMR and fatherly confirmed via X-ray crystallography. Compound 4 was then screened for their possible antioxidant and cytotoxic potentials. Benzoyl chloride was treated with an equimolar potassium thiocyanate in acetone to achieve benzoyl isothiocyantes. It was then treated with an equimolar (1R, 2S)-( )-Ephedrine to obtain the 3-benzothioyl-1-(3-hydroxy-3-phenyl-3-propyl)-1-methyl thiourea4. It was then screened for antioxidant and cytotoxic potentials. The compound 4 showed excellent antioxidant activity almost comparable to ascorbic acid (standard) and have significant cytotoxic activity with LC50 value 05+/-0.58 ppm. PMID- 29039330 TI - Comparison of tranexamic acid pharmacokinetics after intra-articular and intravenous administration in rabbits. AB - Tranexamic Acid (TXA) is commonly administered in total knee arthroplasty for reducing blood loss. There has been a growing interest in the topical use of TXA except intravenous use for prevention of bleeding in TKA. The aim of this study was to develop and validate a HPLC-MS method to detect TXA and apply to compare the pharmacokinetic profile of TXA after intravenous (IV) and topical intra articular (IA) application of TXA at a dose of 20 mg/kg in rabbits. In order to prove intra-articular administration is better than that of intravenous administration from the point of rabbit pharmacokinetic. Two groups of rabbits (n=6/group) respectively received TXA intra-articularly or intravenously. Blood samples were collected at scheduled time. The concentration of TXA in plasma was determined by a validated HPLC-MS method. Excellent linearity was found between 0.015 and 70.0MUg/ml with a lower limit of quantitation (LLOQ) of 0.015MUg/ml (r>0.99); moreover, all the validation data including accuracy and precision (intra- and inter-day) were all within the required limits. The pharmacokinetic parameters in IA and IV group were: Cmax: 30.65+/-3.31 VS 54.05+/- 6.21MUg/ml (p<0.01); t1/2: 1.26+/-0.05 VS 0.68+/-0.13h (p<0.05); AUC0-t: 42.98+/-7.73 VS 23.39+/-4.14MUg/ml* h (p<0.01), time above the minimum effective concentration (%T > MEC): 1.5-2.2 VS 0.7-1.2h (p<0.05). HPLC-MS method is suitable for TXA pharmacokinetic studies. The results demonstrated that topical intra-articular application of TXA showed a reduced peak plasma concentration and prolonged therapeutic drug level compared with intravenous TXA from the point of rabbit pharmacokinetic. PMID- 29039331 TI - Stabilization studies of sunflower oil with antioxidants extracted from green and black cardamom. AB - Extracts from green and black cardamom have been used to evaluate their antioxidant potential for sunflower oil samples for a period of 45 days. Synthetic antioxidants BHA/ BHT were also used parallel over a period of 45 days for comparison. Antioxidant potential of natural and synthetic antioxidants were evaluated by measuring free fatty acids (FFA), peroxide value (PV) and iodine value (IV) values by ambient storage of sunflower oil. The results showed that green cardamom extracts were more effective compared to black cardamom extracts. However compared to BHA and BHT (200ppm), these were found to be effective at higher concentrations. PMID- 29039332 TI - Antibacterial activity of different plant extracts and antibiotics on pathogenic bacterial isolates from wheat field water. AB - The present work was carried out to study bacterial pathogens isolated from wheat field water and also effect of some plant extracts on these bacterial pathogens. Five bacterial strains were isolated from wheat field water. Different morphological and biochemical tests were performed to identify and characterize bacterial pathogens. Among isolated strains two belonged to genus Staphylococcus sp., other two were Pseudomonas spp. and one strain belonged to genus Salmonella sp. Effect of various parameters such as temperature, pH, antibiotics and heavy metals of these pathogens were also studied. Optimum temperature for all bacterial strains was 37oC and optimum pH was 7 except strain 3 which had pH 6. Different antibiotics with different potency were applied to check the resistance of bacterial strains against them. Among these antibiotics Cloxacillin and Teicoplanin were most potent while Oxacillin was as less potent antibiotic because three bacterial strains were resistant against it. While remaining antibiotics proved as potent. Seven heavy metals which were zinc (Zn+2), copper (Cu+2), Ferrous (Fe+2), mercury (Hg+2), Nickel (Ni+2), chromium (Cr+2) and cobalt (Co+2) with different concentrations were applied to bacterial strains. Minimum inhibitory concentration of heavy metals for all bacterial was different. Different plant extracts (Artemezia incise, Colebrookia oppositifolia, Rhynchosia pseudocajan) checked for their antibacterial activity against these pathogens. These plant extracts showed antibacterial activity against antibiotic and metal resistant bacterial isolates. PMID- 29039333 TI - Antioxidant, antibacterial and antiproliferative activities of pumpkin (cucurbit) peel and puree extracts - an in vitro study. AB - Natural resources right from the beginning of the human civilization has paved the way to human being to combat different challenges. The big challenge was to safe the human being from diseases and shortage of food. Plants helped the man in both areas very efficiently. No doubt when plants are used as food actually we are also taking lot of compounds of medicinal values in an excellent combination which naturally reduce the risk of diseases. Extraction and purification of several medicinally important compounds also gave the way to develop pharmaceutical industry in addition to its own therapeutic effects against different lethal diseases. Pumpkin is one of the several medicinal important vegetables used in different way on the behalf of its admirable power to combat different diseases. Antioxidant and biological studies showed very important results. A good coherence was found among extraction yield (10.52 to 18.45%), total phenolics (1.13 to 6.78 mg GAE/100g), total flavonoids (0.23 to 0.72mg CE/100g) and antioxidant potential (?70%). Antibacterial assays of peel and puree extracts advocated good potential to stop the growth and division of pathogenic bacteria. Further biological activity study was carried out using MDBK cancer cell line. The growth inhibitory effect on cancer cell line using MTT assay showed methanol extracts of peel and puree both remained efficient to inhibit growth (?35%) and cell division of cancer cells. Our results showed that extracts of pumpkin puree and its waste, peel, may be utilize to prepare functional food against pathogenic born diseases and most active compounds may also be extracted, concentrated and converted into tablets or suspension form for therapeutic purposes. PMID- 29039334 TI - A lignan with glucose uptake activity in 3T3-L1 adipocytes from the stem bark of Knema patentinervia. AB - A new naturally occurring dibenzylbutyrolactone lignan named isocubebinic ether has been isolated from Knema patentinervia. The structure was established by spectroscopic methods, which include Ultraviolet, Infrared, Nuclear Magnetic Resonance and Mass Spectrometry. The compound showed activity in the stimulation of glucose uptake by 3T3-L1 adipocytes. PMID- 29039335 TI - Anti-avian influenza virus H9N2 activity of aqueous extracts of Zingiber officinalis (Ginger) and Allium sativum (Garlic) in chick embryos. AB - In the present study, anti-Avian influenza virus H9N2 activity of aqueous extracts (5, 10, 15, 20, 25%) of Zingiber officinalis and Allium sativum was evaluated. Embryo-toxicity was evaluated by histopathological scoring of Chorio allantoic membrane of chick embryos. Cytotoxicity of extracts was determined by MTT assay on Vero cells. Aqueous extract of ginger had antiviral activity at 10, 15, 20 and 25% while garlic had activity at 15, 20 and 25%. Histopathological scoring of chorio-allantoic membrane for aqueous extracts (5, 10, 15, 20, 25%) of ginger (0.66+/-0.57, 1.33+/-0.57, 1.66+/-0.57, 2.66+/-0.57, 3.66+/-0.57, respectively) and garlic (1.00+/-0.00, 1.33+/-0.57, 2.00+/-0.00, 2.33+/-0.57, 3.66+/-0.57, respectively) was concentration dependant. MTT assay revealed cytotoxicity of both plants was also concentration dependent. Extracts of ginger (5, 10, 15, 20, 25%) had lower cytotoxicity (71, 59, 28, 22, 0 % cell survival, respectively) as compared to garlic (61, 36. 20, 11, 3% cell survival, respectively). Overall results revealed that concentration of aqueous extract of ginger (10%), showing antiviral activity against H9N2, was less toxic to vero cells (> 50% cell survival). It is insinuated that ginger may have anti- Avian influenza virus H9N2 potential and its active compounds needs further investigations. PMID- 29039336 TI - Soil transmitted helminthiasis in different occupational groups in Swat, Khyber Pakhtunkhwa, Pakistan. AB - We investigated the prevalence of geohelminth parasites in farmers, education concerned and shepherd of Swat, Khyber Pakhtunkhwa, Pakistan. A total of 1041 stool samples were examined from January 2006 to December 2008 using direct smear (Normal saline and Lugol's Iodine solution) the concentration methods and procedures. Seven hundred and sixty three (73.2%) individuals were found infected with one or more than one geohelminth parasites. Four hundred and eighteen (54.7%) were infected with single parasite and three hundred forty five (45.3%) with multiple infections. Ascaris lumbricoides 460 (53.0%), Trichuris trichura 228 (26.2%), Enterobius vermicularis 123 (14.1%) and Ancylostoma duedenale 56 (6.45%) were detected. The adults were found more parasitized than children and males were more infected than females. Shepherds were found more infected than farmers and education concerned. Although Swat is an area with poor hygiene located in temperate zone near the border of Afghanistan and China. The prevalence of reported geohelminth parasites here compared with the same studies is unexpectedly high. These types of studies should continue time to time to know the hazardous of such parasitic infections for the betterment of the human health. PMID- 29039337 TI - Synthesis, acute toxicity, analgesic activity and cytotoxicity of Some bisthiourea derivatives. AB - Bisthiourea derivatives were synthesized by the reaction of benzoylisothiocyanate and diamines to give 1,2-Bis(N'-benzoylthioureidobenzene (1), 1,3 di(benzoylthioureido)benzene (2) and 1,4-di(benzoylthioureido)benzene (3) in acetone. Acute toxicity study revealed that LD50 of compound (1) and (3) is 120 mg/kg body weight. Visceral pain induced by injecting i.p acetic acid in mice were strongly inhibited by all the compounds. 94.65, 95.25 and 85.54% analgesic activity were observed in compounds (1), (2) and (3) at 15 mg/kg and (2) and (3) shows 97.63 and 96.42% at 30 mg/kg body weight respectively while (1) gives 100% analgesic activity. 100% cytotoxicity was observed in compounds (2) and (3) and 96% in compound (1) at 750 ppm. The results suggest that these compounds may have potential values for treatment of cancer and painful disorders. PMID- 29039338 TI - Anti-Inflammatory and antiviral effects of water-soluble crude extract from Phragmites australis in vitro. AB - Phragmitesaustralis (P. australis), a worldwide distributed wetland grass, is traditionally used as food-making helper and spice in China. The pharmacological effect of this plant is poorly understood. Here, we demonstrated that lipopolysaccharide (LPS)-induced production of inflammatory mediators nitric oxide (NO) and reactive oxygen species (ROS), and the pro-inflammatory cytokines tumor necrosis factor-a (TNF-a) and interleukin-1beta (IL-1beta) in RAW264.7 macrophage were significantly inhibited by the crude extract. The inflammation pertinent signaling extra cellular signal-regulated kinase 1/2 (Erk1/2), P38MAPK, C-Jun and NF-kappaB (NF-kappaB) activated by LPS could be dramatically inhibited by this extract. It also remarkably inhibited bovine herpes virus type 1 (BoHV-1) replication in MDBK cells. Taken together, here, for the first time we provided P. australisa a novel natural herb as a potential candidate for the generation of antiviral and anti-inflammatory agent. PMID- 29039339 TI - Effects of two functionally important SLCO1B1 gene polymorphisms on pharmacokinetics of atorvastatin. AB - Organic anion transporter polypeptide 1B1 (OATP1B1) encoded by (SLCO1B1) gene, an uptake transporter involved in the transport of drugs and endogenous compounds and located in hepatocyte sinusoidal membrane. Objective of study was to investigate the effects of two functionally significant SNPs (388A>G and 521T>C) and their respective genotypes of SLCO1B1 gene encoding OATP1B1 on the pharmacokinetics of atorvastatin. A total of 100 subjects divided into 6 groups as per their genotype profile were recruited. A single dose of 80mg atorvastatin was orally administered and plasma concentration measured up to 48 hours. The 388A>G and 521T>C genotypes were significantly associated with each other when compared for AUC and Cmax but exhibited no significant variations in Tmax and t1/2. 521 SNP is rather more strongly associated with altered pharmacokinetics of atorvastatin when compared with the 388 SNP, though the homozygous bi-allelic variant of 388 SNP also exhibited a fairly significant variation along with homozygous bi-allelic variant of 521 SNP. The inter-individual variation in pharmacokinetics can be explained by SLCO1B1 polymorphism. PMID- 29039340 TI - In vitro antibacterial and antifungal activities of different solvent extracted samples from the stem of Euphorbia heliscopia. AB - This paper presents the anti-microbial potentials of methanol, ethyl acetate, n hexane, butanol and water extracted samples from the stem of Euphorbia heliscopia against S. aureus (Gram positive), B. subtilis (Gram positive), P. aeruginosa (Gram negative), K. pneumonia (Gram negative), E. coli (Gram negative), C. albicans (fungal specie) by discs diffusion susceptibility assay using 0.5 and 1mg disc-1 concentrations. Our results showed that all the extracted samples from the stem of E. heliscopia exhibited varying degree of antimicrobial activity. Ethyl acetate extracted samples measured maximum activity against the studies microbial species followed by the n-butanol and crude methanolic extract. n hexane extracted samples inhibited the growth of all microbial species except P. aeruginosa and E. coli at lower concentration. Aqueous fractions showed inhibitory activity against B. subtilis, K. pneumonia and C. albicans. The most susceptible gram positive bacteria were S. aureus while B. subtilis was the most resistant one. Among Gram negative bacteria, P. aeruginosa showed more susceptibility while K. pneumonia was resistant. PMID- 29039341 TI - The practice of self-medication among Pakistani university students. AB - Self-medication refers to the selection and use of medicines without prescription by an individuals' personal responsibility as a cure of self-identified disease. Although its rationale, type and extent may different from culture to culture, it is globally prevalent practice. In Pakistan no research is available on the use of self-medication among university students. The existing study was conducted to investigate the frequency and percentages of branded medicines used by university students, reasons and rationale behind self-medication. It was a survey research design and descriptive statistics were collected regarding the use of self- medication. Hence, a sample of 300 students was employed between the age range of 16-25 years (M = 20.23, SD = 2. 76). The respondents filled a questionnaire regarding socio-economic and demographic variables, use of self-medication, and medication knowledge. Information was obtained on the conditions treated with medication, the medications used, and attitude towards self-medication. Results indicated mostly used type of self-medication was allopathic (f = 230, 77%). Headache was found to be more frequently prevalent disease. Most frequently used medicine was Disprin (M = 49.68, SD = 15. 14) as a cure of headaches and other body pains. Financial problems (f = 90, 30%) left over drugs (f = 46, 15%) and easy accessibility (f =38, 12.7%) were found to be the strongest factors in using self-medication. Moreover significant differences appeared in the use of type of medicines between boys and girls. The study concluded that self-medication is widely used practice among university students in Pakistan. PMID- 29039342 TI - Report - In vitro immune potentials of a water-soluble polysaccharide extract from Dioscorea opposita planted in Henan Province, China. AB - Dioscorea opposita is an edible and medicinal plant available in many areas of China. This study aimed to assess in vitro immune potentials of a water-soluble polysaccharide extract from D. opposita planted in Henan Province, China. In vitro effects of the extract on three immune cells (macrophages, natural killer cells and splenocytes) from mice and secretion of eight immune-related molecules in macrophages and splenocytes were evaluated. In total, the extract exhibited a dose-dependent manner on these immunological responses. The extract at dose level of 50MUg/ml enhanced respective splenocyte proliferation, macrophage phagocytosis, and natural killer cell activity by 150%, 18% and 47%, increased secretion of interleukin-2 and interferon-gamma (from 41.4 and 24.6 pg/ml to 48.8 and 91.5 pg/ml, respectively) but decreased secretion of interleukin-4 (from 38.9 to 27.9 pg/ml) in splenocytes. The extract at the same dose level also stimulated inducible nitric oxide synthase and lysozyme in macrophages, and enhanced secretion of interleukin-6, interleukin-1beta and tumor necrosis factor-alpha (from 26.6, 73.4 and 39.6 pg/ml to 60.2, 131.0 and 144.7 pg/ml, respectively). It is concluded that water-soluble polysaccharides from D. opposita have immune potentials to the body, via activating immune cells and regulating the secretion of immune-related molecules. PMID- 29039343 TI - Mini Review - Phenolics for skin photo-aging. AB - Photo-aging is one of the foremost problems caused by generation of reactive oxygen species when skin is exposed on UV irradiation. In view of that, generation of reactive oxygen species intermingle with proteins, DNA, saccharides and fatty acids triggering oxidative mutilation and effects are in the appearance of distressed cell metabolism, morphological and ultra-structural changes, mistreat on the routes and revisions in the demarcation, propagation and skin apoptosis living cells which leads to photo-aging. Plant phenolics are universally found in both edible and inedible plants and have extended substantial interest as photo-protective for human skin due to their antioxidant activities. The objective of this review is to highlight the use of plant phenolics for their antioxidant activities against photo-aging. PMID- 29039344 TI - Mini Review - Analysis of Artemether and Dihydroartemisinin by high performance high liquid chromatography in biological fluids-issues and solutions. AB - Artemether-Lumefantrine is the most widely recommended antimalarial combination used to treat millions of patients suffering from malaria. Artemether undergoes rapid metabolism and gets converted to its active metabolite dihydroartemisisn. Drug analysis is a vital aspect to evaluate drugs in research. There are a number of methods available for the determination of artemether in biological fluids. These methods include HPLC based UV detection, GS-MS, HPLC-ECD and HPLC-MS/MS. This article reviews different methods for the determination of artemether in the biological fluids. Among the available methods HPLC-MS/MS proves to be the most accurate and reliable one for analysis. This has the advantage of improved sensitivity and selectivity with smaller sample volume. PMID- 29039345 TI - Validation of Transition Readiness Assessment Questionaire in Turkish Adolescents with Diabetes. AB - BACKGROUND: Today, more than 90% of adolescents with chronic conditions survive into adulthood and move from pediatric care to adult care for the management of their chronic illness. It is important to grant autonomy and ensure that adolescents/young adults are ready to use the adult health care system prior to the transfer of care. However, the lack of a transition readiness assessment tool that is validated, patient-centered, and appropriate to developmental differences in pediatric care is a major obstacle for the transition of care from pediatric services to adult services. AIMS: This study examined the validity and reliability of the Turkish version of the Transition Readiness Assessment Questionnaire, which assesses the readiness for transition from pediatric to adult health care for adolescents/young adults with diabetes mellitus. STUDY DESIGN: Methodological study. METHODS: Participants were 109 adolescents/young adults with type 1 diabetes mellitus aged 14-21 years. After permission was obtained to adapt the Transition Readiness Assessment Questionnaire, the Turkish Transition Readiness Assessment Questionnaire and self-care scale were administered to participants through face-to-face interviews at two pediatric endocrinology clinics. Validity was evaluated by exploratory and confirmatory factor analysis and content-scope validity assessment; reliability was evaluated by item-total score correlation and continuity methods. Internal reliability was assessed by Cronbach's alpha coefficient and criterion validity assessment. RESULTS: The item analysis, exploratory factor analysis, and confirmatory factor analysis identified five basic dimensions, with high internal consistency (0.89 0.75). The ratio chi2/df and other conformity indices were a good fit to the data. The correlation coefficient in the analyses of test-retest scores was 0.86 for the total scale (p<0.05), and the Cronbach's alpha coefficient was 0.88 for overall scale. CONCLUSION: The Turkish Transition Readiness Assessment Questionnaire is a valid and reliable measure of the transition readiness of adolescents/young adults with diabetes mellitus in Turkey. The Transition Readiness Assessment Questionnaire assesses the self-management abilities and health care transition knowledge of adolescents/young adults with diabetes mellitus who need special health care. It can also serve as a guide for health care professionals in detecting the educational fields that are necessary for acquiring self-management and self-care abilities. PMID- 29039346 TI - Astrogliosis has Different Dynamics after Cell Transplantation and Mechanical Impact in the Rodent Model of Parkinson's Disease. AB - BACKGROUND: Transplantation of fetal mesencephalic tissue is a well-established concept for functional reinnervation of the dopamine-depleted rat striatum. However, there is no extensive description of the glial response of the host brain following this procedure. AIMS: The present study aimed to quantitatively and qualitatively analyse astrogliosis surrounding intrastriatal grafts and compare it to the reaction to mechanical injury with the transplantation instrument only. STUDY DESIGN: Animal experimentation. METHODS: The standard 6 hydroxydopamine-induced unilateral model of Parkinson's disease was used. The experimental animals received transplantation of a single-cell suspension of E14 ventral mesencephalic tissue. Control animals (sham-transplanted) were subjected to injury by the transplantation cannula, without injection of a cell suspension. Histological analyses were carried out 7 and 28 days following the procedure by immunohistochemistry assays for tyrosine hydroxylase and glial fibrillary acidic protein. To evaluate astrogliosis, the cell density and immunopositive area were measured in distinct zones within and surrounding the grafts or the cannula tract. RESULTS: Statistical analysis revealed that astrogliosis in the grafted striatum increased from day 7 to day 28, as shown by a significant change in both cell density and the immunopositive area. The cell density increased from 816.7+/ 370.6 to 1403+/-272.1 cells/mm2 (p<0.0001) and from 523+/-245.9 to 1164+/-304.8 cells/mm2 (p<0.0001) in the two zones in the graft core, and from 1151+/-218.6 to 1485+/-210.6 cells/mm2 (p<0.05) for the zone in the striatum immediately adjacent to the graft. The glial fibrillary acidic protein-expressing area increased from 0.3109+/-0.1843 to 0.7949+/-0.1910 (p<0.0001) and from 0.1449+/-0.1240 to 0.702+/ 0.2558 (p<0.0001) for the same zones in the graft core, and from 0.5277+/-0.1502 to 0.6969+/-0.1223 (p<0.0001) for the same area adjacent to the graft zone. However, astrogliosis caused by mechanical impact only (control) did not display such dynamics. This finding suggests an influence of the grafted cells on the host's glia, possibly through cross-talk between astrocytes and transplanted neurons. CONCLUSION: This bidirectional relationship is affected by multiple factors beyond the mechanical trauma. Elucidation of these factors might help achieve better functional outcomes after intracerebral transplantation. PMID- 29039347 TI - Ferritin as a potential biomarker of efficacy of treatment of atrial fibrillation - preliminary report. AB - BACKGROUND: Complex mechanisms of responsible for originating and maintaining of atrial fibrillation (AF) are involved in pathophysiology of this arrhythmia. Inflammation substantially contribute to arrhythmic remodelling of atrial tissue.The aim of the present study is to assess an applicability of ferritin and high sensitive C-reactive protein (hs-CRP) as biomarkers of atrial fibrillation and their usefulness in evaluation of efficacy of cryoablation. MATERIALS AND METHODS: The study population consisted of 40 patients who underwent first AF cryoablation procedure. The whole follow-up time was for 6 months. The efficacy of cryoablation was defined as lack of episodes of AF longer than 30 s reported either in patient's medical documentation or present in standard or Holter ECG records. Concentrations of hs-CRP (latex method ) and ferritin (immunochemical method) were determined in standard way in hospital laboratory. RESULTS: The recurrence of atrial fibrillation during follow-up was detected in 7 of 40 patients (efficacy 82.5%). Basal concentrations of hs-CRP and ferritin were significantly higher in patients who underwent ablation during AF. Ablation resulted in an increase of either hs-CRP or ferritin concentrations. After seven days, both hs-CRP and ferritin concentrations returned to basal level. The trend toward the higher concentration of hs-CRP was observed in AF recurrence subgroup in 30th and the 90th day after the procedure. Ferritin concentrations were significantly higher in recurrence subgroup after 30 and 90 days. CONCLUSION: Our results suggest that the evaluation of ferritin serum level can be a potential tool for assessment of AF treatment efficacy. PMID- 29039348 TI - The impact of agonists and antagonists of TLR3 and TLR9 on concentrations of IL 6, IL10 and sIL-2R in culture supernatants of peripheral blood mononuclear cells derived from patients with systemic lupus erythematosus. AB - Toll-like receptors (TLR), especially TLR3, 7 and 9, play an important role in the pathogenesis of systemic lupus erythematosus (SLE). In our study blood was collected from 16 patients with SLE and from 8 healthy volunteers. Concentrations of IL-6, IL-10 and sIL-2R were measured by ELISA in mononuclear cell culture supernatant after 24 hours of stimulation by agonists and antagonists of TLR3 and 9 (for TLR3-poli I/C, resveratrol and for TLR9-ODN2006, IRS 945). Stimulation of TLR9 by ODN2006 led to an increase of IL-6 concentration in cell culture supernatants from the cells of healthy volunteers compared with unstimulated cells from controls. Inhibition of TLR3 activation by resveratrol caused a significantly lower concentration of IL-10 in cell culture supernatants derived from both patients and healthy donors. Moreover, resveratrol significantly decreased the level of IL-10 and sIL-2R in culture supernatants of cells derived from patients with active disease compared to the inactive stage. A positive correlation was also found between IL-6 concentration following ODN2006 administration and disease activity. In conclusions, our results indicate that TLRs play a role in the modulation of the inflammatory response in SLE patients. This suppressive action on IL-10 synthesis demonstrated by resveratrol suggests that it may be useful in SLE therapy. PMID- 29039349 TI - Non-nutritional use of breast milk. AB - Mammals milk, in addition to nutrients, contains many biologically active substances including immunoglobulins, growth factors, cytokines, acute phase proteins, and antimicrobial and antiviral proteins. Thanks to its unique composition, for hundreds of years it is used in post-natal care, treatment of wounds, as well as to fight bacterial and viral infections. The discovery of stem cells and HAMLET complex in breast milk resulted in increased interest in human breast milk as a natural medicine. Milk therapy is devoid of side effects, and breast milk banks may serve as a potential source of milk as a drug substance. In this study we collected information about the possible non-nutritional use of breast milk. PMID- 29039350 TI - The toxicity of vanadium on gastrointestinal, urinary and reproductive system, and its influence on fertility and fetuses malformations. AB - Vanadium is a transition metal that has a unique and beneficial effect on both humans and animals. For many years, studies have suggested that vanadium is an essential trace element. Its biological properties are of interest due to its therapeutic potential, including in the treatment of diabetes mellitus. Vanadium deficiencies can lead to a range of pathologies. However, excessive concentration of this metal can cause irreversible damage to various tissues and organs. Vanadium toxicity mainly manifests in gastrointestinal symptoms, including diarrhea, vomiting, and weight reduction. Vanadium also exhibits hepatotoxic and nephrotoxic properties, including glomerulonephritis and pyelonephritis. Vanadium compounds may also lead to partial degeneration of the seminiferous epithelium of the seminiferous tubules in the testes and can affect male fertility. This paper describes the harmful effects of vanadium on the morphology and physiology of both animal and human tissues, including the digestive system, the urinary tract, and the reproductive system. What is more, the following study includes data concerning the correlation between the above-mentioned metal and its influence on fertility and fetus malformations. Additionally, this research identifies the doses of vanadium which lead to pathological alterations becoming visible within tissues. Moreover, this study includes information about the protective efficacy of some substances in view of the toxicity of vanadium. PMID- 29039352 TI - Atomic layer deposited oxide films as protective interface layers for integrated graphene transfer. AB - The transfer of chemical vapour deposited graphene from its parent growth catalyst has become a bottleneck for many of its emerging applications. The sacrificial polymer layers that are typically deposited onto graphene for mechanical support during transfer are challenging to remove completely and hence leave graphene and subsequent device interfaces contaminated. Here, we report on the use of atomic layer deposited (ALD) oxide films as protective interface and support layers during graphene transfer. The method avoids any direct contact of the graphene with polymers and through the use of thicker ALD layers (>=100 nm), polymers can be eliminated from the transfer-process altogether. The ALD film can be kept as a functional device layer, facilitating integrated device manufacturing. We demonstrate back-gated field effect devices based on single layer graphene transferred with a protective Al2O3 film onto SiO2 that show significantly reduced charge trap and residual carrier densities. We critically discuss the advantages and challenges of processing graphene/ALD bilayer structures. PMID- 29039351 TI - Epidemiology, risk factors and prognosis of Interferon alpha induced thyroid disorders. A Prospective Clinical Study. AB - INTRODUCTION: Hepatitis C virus (HCV) infection is a worldwide problem and hepatitis, which is its natural unfavourable course, is still a challenge for hepatologist. At present, standards of treatment are changing from combined therapy with interferon alpha (IFN-alpha) and ribavirin to new antiviral drugs. The current classification divides interferon induced thyroid diseases (IITD) into two groups: autoimmune (Hashimoto disease, Graves disease, positive antithyroid autoantibodies in euthyroid patients) and non-autoimmune (destructive thyroiditis, non-autoimmune hypothyroidism). A common complication of cytokine therapy is the induction of antithyroid autoantibodies de novo without thyroid dysfunction. During therapeutic regimens combined with ribavirin, destructive thyroiditis with typical biphasic course is more common than in IFN-alpha monotherapy. Clinically, overt pathologies often have discrete symptoms, which cause diagnostic and therapeutic dilemmas. AIMS: The aim of this study was to estimate IITD occurrence, to find risk factors for IITD development. MATERIAL AND METHODS: The study group consisted of 66 patients treated for HCV infection. Before and during antiviral therapy, hormonal (TSH, fT4, fT3), immunological (thyroid autoantibodies), ultrasonographic and genetic (HLA-A2) parameters were evaluated. RESULTS: Hormonal disturbances were detected in 24.2% of patients; however, 43.9% of patients had positive thyroid autoantibodies (de novo) without hormonal imbalance. Multivariate analysis revealed the following: female sex, elevated TSH level, occurrence of anti-TPO autoantibodies (TPO-Ab), and increased blood velocity in thyroid arteries are risk factors for IITD development. IN CONCLUSION: Thyroid disorders are common during IFN-alpha therapy. Previous epidemiological data seem to be underestimated. Important risk factors for IITD development are: female sex, elevated serum TSH concentration (>=2.5 MUU/mL), positive TPO-Ab and increased blood velocity in thyroid arteries. PMID- 29039353 TI - A high-performance mesoporous carbon supported nitrogen-doped carbon electrocatalyst for oxygen reduction reaction. AB - Investigating low-cost and highly active electrocatalysts for oxygen reduction reactions (ORR) is of crucial importance for energy conversion and storage devices. Herein, we design and prepare mesoporous carbon supported nitrogen-doped carbon by pyrolysis of polyaniline coated on CMK-3. This electrocatalyst exhibits excellent performance towards ORR in alkaline media. The optimized nitrogen-doped mesoporous electrocatalyst show an onset potential (E onset) of 0.95 V (versus reversible hydrogen electrode (RHE)) and half-wave potential (E 1/2) of 0.83 V (versus RHE) in 0.1 M KOH. Furthermore, the as-prepared catalyst presents superior durability and methanol tolerance compared to commercial Pt/C indicating its potential applications in fuel cells and metal-air batteries. PMID- 29039354 TI - Gas-sensing enhancement methods for hydrothermal synthesized SnO2-based sensors. AB - Gas sensing for hydrothermal synthesized SnO2-based gas sensors can be enhanced in three ways: structural improvement, composition optimization, and processing improvement. There have been zero-dimensional, one-dimensional, and three dimensional structures reported in the literature. Controllable synthesis of different structures has been deployed to increase specific surface area. Change of composition would intensively tailor the SnO2 structure, which affected the gas-sensing performance. Furthermore, doping and compounding methods have been adopted to promote gas-sensing performance by adjusting surface conditions of SnO2 crystals and constructing heterojunctions. As for processing area, it is very important to find the optimal reaction time and temperature. In this paper, a gas-solid reaction rate constant was proposed to evaluate gas-sensing properties and find an excellent hydrothermal synthesized SnO2-based gas sensor. PMID- 29039355 TI - Highly stable cesium lead iodide perovskite quantum dot light-emitting diodes. AB - Recently, all-inorganic perovskites such as CsPbBr3 and CsPbI3, have emerged as promising materials for light-emitting applications. While encouraging performance has been demonstrated, the stability issue of the red-emitting CsPbI3 is still a major concern due to its small tolerance factor. Here we report a highly stable CsPbI3 quantum dot (QD) light-emitting diode (LED) with red emission fabricated using an improved purification approach. The device achieved decent external quantum efficiency (EQE) of 0.21% at a bias of 6 V and outstanding operational stability, with a L 70 lifetime (EL intensity decreases to 70% of starting value) of 16 h and 1.5 h under a constant driving voltage of 5 V and 6 V (maximum EQE operation) respectively. Furthermore, the device can work under a higher voltage of 7 V (maximum luminance operation) and retain 50% of its initial EL intensity after 500 s. These findings demonstrate the promise of CsPbI3 QDs for stable red LEDs, and suggest the feasibility for electrically pumped perovskite lasers with further device optimizations. PMID- 29039356 TI - Strain-modulation-assisted enhanced broadband photodetector based on large-area, flexible, few-layered Gr/MoS2 on cellulose paper. AB - Electronic structure and carrier behavior in semiconductor junctions can be effectively modulated on the application of strain. This work represents the first demonstration of a large-area, flexible, paper-based graphene-molybdenum disulfide (Gr/MoS2) broadband photodetector using a low-cost solution-processed hydrothermal method and enhancement in photodetection through strain modulation by assembling the device on polydimethylsiloxane. Optimization, in terms of process parameters, was carried out to obtain trilayer MoS2 over Gr-cellulose paper. Under strain, potential barrier variation and piezopotential induced in MoS2 leads to 79.41% enhancement in photodetection in the visible region. Piezopotential induced in MoS2 lowers the conduction-band energy thereby increasing the effective electric field favoring easy electron-hole separation. The advantage of vertically stacked Gr/MoS2 for the photodetector is the utilization of the entire area as a junction where effective separation of electron-hole pairs occurs. Detailed studies of the mechanism in terms of potential barrier variation in Gr/MoS2 and an energy-band diagram are presented to help understand the proposed phenomenon. The present work demonstrates the significance of few-layer MoS2 or Gr in relation to strain-modulated photosensing in comparison to their counterparts grown via chemical vapor deposition. The results provide an excellent approach for the fabrication of low-cost heterojunctions for improved optoelectronic performance, which can be further extended to similar 2D-material heterojunctions for analog, digital and optoelectronic applications. PMID- 29039357 TI - Synergetic effect of Sn addition and oxygen-deficient atmosphere to fabricate active hematite photoelectrodes for light-induced water splitting. AB - This work describes the design of a microwave-assisted method using hydrothermal conditions to fabricate pure and Sn-doped hematite photoelectrodes with varied synthesis time and additional thermal treatment under air and N2 atmosphere. The hematite photoelectrode formed under N2 atmosphere, with Sn deposited on its surface-which is represented by material synthesized at 4 h -exhibits the highest performance. Hence, Sn addition followed by high temperature annealing conducted in an oxygen-deficient atmosphere seems to create oxygen vacancies, and to prevent the segregation of dopant to form the SnO2 phase at the hematite crystal surface, reducing its energy and suppressing the grain growth. The increased donor number density provided by the oxygen vacancies (confirmed by x-ray photoelectron data), and a possible reduction in the grain boundary energy or hematite crystal interface might favor charge separation, and increase the electron transfer through the hematite into the back contact (FTO substrate). In consequence, the light-induced water oxidation reaction efficiency of Sn-hematite photoelectrodes was significantly increased in comparison with pure ones, even though the vertical rod morphology was not preserved. This finding provides a novel insight into intentional Sn addition, revealing that dopant segregation at the hematite crystal surface (or at the grain boundaries) could-by increasing the electron mobility-be the more relevant factor in developing active hematite photoelectrodes than the control of columnar morphology. PMID- 29039358 TI - Hydrothermal synthesis of SnQ (Q = Te, Se, S) and their thermoelectric properties. AB - Lead-free IV-VI semiconductors SnQ (Q = Te, Se, S) are deemed as promising thermoelectric (TE) materials. In this work, we designed a hydrothermal route to selectively synthesize single phase SnTe, SnSe and SnS nanopowders. For all three samples, the phase structure were characterized by x-ray diffraction, SnTe particles with octahedron structure and SnSe/SnS particles with plate-like shape were observed by field emission scanning electron microscopy and transmission electron microscopy, the formation mechanism was discussed in detail. Then, SnTe, SnSe and SnS nanopowders were densified by spark plasma sintering for investigating TE properties. It was noticed that SnSe and SnS exhibited remarkably anisotropy in both electrical and thermal properties attributed to the layered crystal structure. The highest ZT values 0.79 at 873 K, 0.21 at 773 K, and 0.13 at 773 K were achieved for SnTe, SnSe and SnS bulk samples, respectively. PMID- 29039359 TI - Piezotronic effect tuned AlGaN/GaN high electron mobility transistor. AB - The piezotronic effect utilizes strain-induced piezoelectric polarization charges to tune the carrier transportation across the interface/junction. We fabricated a high-performance AlGaN/GaN high electron mobility transistor (HEMT), and the transport property was proven to be enhanced by applying an external stress for the first time. The enhanced source-drain current was also observed at any gate voltage and the maximum enhancement of the saturation current was up to 21% with 15 N applied stress (0.18 GPa at center) at -1 V gate voltage. The physical mechanism of HEMT with/without external compressive stress conditions was carefully illustrated and further confirmed by a self-consistent solution of the Schrodinger-Poisson equations. This study proves the cause-and-effect relationship between the piezoelectric polarization effect and 2D electron gas formation, which provides a tunable solution to enhance the device performance. The strain tuned HEMT has potential applications in human-machine interface and the security control of the power system. PMID- 29039360 TI - Visualization and automatic detection of defect distribution in GaN atomic structure from sampling Moire phase. AB - Quantitative detection of defects in atomic structures is of great significance to evaluating product quality and exploring quality improvement process. In this study, a Fourier transform filtered sampling Moire technique was proposed to visualize and detect defects in atomic arrays in a large field of view. Defect distributions, defect numbers and defect densities could be visually and quantitatively determined from a single atomic structure image at low cost. The effectiveness of the proposed technique was verified from numerical simulations. As an application, the dislocation distributions in a GaN/AlGaN atomic structure in two directions were magnified and displayed in Moire phase maps, and defect locations and densities were detected automatically. The proposed technique is able to provide valuable references to material scientists and engineers by checking the effect of various treatments for defect reduction. PMID- 29039361 TI - Characterization of highly crystalline lead iodide nanosheets prepared by room temperature solution processing. AB - Two-dimensional (2D) semiconducting materials are particularly appealing for many applications. Although theory predicts a large number of 2D materials, experimentally only a few of these materials have been identified and characterized comprehensively in the ultrathin limit. Lead iodide, which belongs to the transition metal halides family and has a direct bandgap in the visible spectrum, has been known for a long time and has been well characterized in its bulk form. Nevertheless, studies of this material in the nanometer thickness regime are rather scarce. In this article we demonstrate an easy way to synthesize ultrathin, highly crystalline flakes of PbI2 by precipitation from a solution in water. We thoroughly characterize the produced thin flakes with different techniques ranging from optical and Raman spectroscopy to temperature dependent photoluminescence and electron microscopy. We compare the results to ab initio calculations of the band structure of the material. Finally, we fabricate photodetectors based on PbI2 and study their optoelectronic properties. PMID- 29039362 TI - The influence of atmosphere on the performance of pure-phase WZ and ZB InAs nanowire transistors. AB - We compare the characteristics of phase-pure MOCVD grown ZB and WZ InAs nanowire transistors in several atmospheres: air, dry pure N2 and O2, and N2 bubbled through liquid H2O and alcohols to identify whether phase-related structural/surface differences affect their response. Both WZ and ZB give poor gate characteristics in dry state. Adsorption of polar species reduces off current by 2-3 orders of magnitude, increases on-off ratio and significantly reduces sub-threshold slope. The key difference is the greater sensitivity of WZ to low adsorbate level. We attribute this to facet structure and its influence on the separation between conduction electrons and surface adsorption sites. We highlight the important role adsorbed species play in nanowire device characterisation. WZ is commonly thought superior to ZB in InAs nanowire transistors. We show this is an artefact of the moderate humidity found in ambient laboratory conditions: WZ and ZB perform equally poorly in the dry gas limit yet equally well in the wet gas limit. We also highlight the vital role density-lowering disorder has in improving gate characteristics, be it stacking faults in mixed-phase WZ or surface adsorbates in pure-phase nanowires. PMID- 29039363 TI - Ab initio phonon thermal transport in monolayer InSe, GaSe, GaS, and alloys. AB - We compare vibrational properties and phonon thermal conductivities (kappa) of monolayer InSe, GaSe, and GaS systems using density functional theory and Peierls Boltzmann transport methods. In going from InSe to GaSe to GaS, system mass decreases giving both increasing acoustic phonon velocities and decreasing scattering of these heat-carrying modes with optic phonons, ultimately giving [Formula: see text]. This behavior is demonstrated by correlating the scattering phase space limited by fundamental conservation conditions with mode scattering rates and phonon dispersions for each material. We also show that, unlike flat monolayer systems such as graphene, in InSe, GaSe and GaS thermal transport is governed by in-plane vibrations. Alloying of InSe, GaSe, and GaS systems provides an effective method for modulating their kappa through intrinsic vibrational modifications and phonon scattering from mass disorder giving reductions ~2-3.5 times. This disorder also suppresses phonon mean free paths in the alloy systems compared to those in their crystalline counterparts. This work provides fundamental insights of lattice thermal transport from basic vibrational properties for an interesting set of two-dimensional materials. PMID- 29039364 TI - Investigation of the in-plane and out-of-plane electrical properties of metallic nanoparticles in dielectric matrix thin films elaborated by atomic layer deposition. AB - Pt nanoparticles in a Al2O3 dielectric matrix thin films are elaborated by means of atomic layer deposition. These nanostructured thin films are integrated in vertical and planar test structures in order to assess both their in-plane and out-of-plane electrical properties. A shadow edge evaporation process is used to develop planar devices with electrode separation distances in the range of 30 nm. Both vertical and planar test structures show a Poole-Frenkel conduction mechanism. Low trap energy levels (<0.1 eV) are identified for the two test structures which indicates that the Pt islands themselves are not acting as traps in the PF mechanism. Furthermore, a more than three order of magnitude current density difference is observed between the two geometries. This electrical anisotropy is attributed to a large electron mobility difference in the in-plane and out-of-plane directions which can be related to different trap distributions in both directions. PMID- 29039366 TI - A Socio-Technical Analysis of Patient Accessible Electronic Health Records. AB - In Sweden, and internationally, there is a movement towards increased transparency in healthcare including giving patients online access to their electronic health records (EHR). The purpose of this paper is to analyze the Swedish patient accessible EHR (PAEHR) service using a socio-technical framework, to increase the understanding of factors that influence the design, implementation, adoption and use of the service. Using the Sitting and Singh socio-technical framework as a basis for analyzing the Swedish PAEHR system and its context indicated that there are many stakeholders engaged in these types of services, with different driving forces and incentives that may influence the adoption and usefulness of PAEHR services. The analysis was useful in highlighting important areas that need to be further explored in evaluations of PAEHR services, and can act as a guide when planning evaluations of any PAEHR service. PMID- 29039367 TI - Availability of Computerised Medical Record System Data to Compare Models of Child Health Care in Primary Care Across Europe. AB - Computerised medical record (CMR) system data can be used to compare different models of health care for children. We identified sources of data from the Models of Child Health Appraised (MOCHA) project that compares family doctor led with paediatrician led and mixed models of child care using index conditions. Asthma and immunisation coverage are the first of these. We explored the extent to which an established Patient Registries Initiative (PARENT); MOCHA's own survey (MIROI); the European Centre for Disease Control (ECDC) immunisation information system survey and the European Network of Centres for Pharmacoepidemiology and Pharmacovigilance (ENCePP) registry of data sources provided data to make comparisons of child health care. Five countries had data repositories for our index conditions from paediatrician lead services, compared with 14 for mixed, and 11 for family doctor led services. PARENT identified 212 sources, MIROI 148 sources, ECDC 17 sources and ENCePP 42; with immunisation related data sources found in all four but asthma in only three. There are less sources of electronic data available to study paediatrician led systems than other models; this risks unequal sample size bias. PMID- 29039368 TI - Connecting Parents to a Pediatric Emergency Department: Designing a Mobile App Based on Patient Centred Care Principles. AB - INTRODUCTION: Patient centred care fosters a holistic approach of care switching the focus from a disease perspective to a patient's experience perspective. Patient centred care is of particular importance in the context of paediatric emergency medicine. Indeed, parents entering a paediatric emergency department (PED) are usually under stress caused by their children's illness, the unfamiliar setting of the PED and delays of care. All these factors can deteriorate their experience as well as the relationships between healthcare providers, the patients and their parents. METHODS: We explore potential areas to improve the patient experience during his journey into PED. The dimensions of the picker's patient centred care are used to guide observations, conduct interviews and focus groups. The areas of improvement are then operationalized through their translation into app functionalities. RESULTS: Our novel application allows supporting users on 7 of the 8 dimensions of picker's patient centred care model. The app supports parents in their decision-making to consult a PED, it provides relevant medical information to avoid unrealistic expectations and accompany the family after discharge thanks to tailored information sheets about diagnostics. CONCLUSION: Our mobile app allows to make a big step toward the improvement of the patient-caregiver relationship. The direct benefits will be shared by patients and caregivers, as well as the institution. PMID- 29039369 TI - Identification and Description of Healthcare Customer Communication Patterns Among Individuals with Diabetes in Clalit Health Services: A Retrospective Database Study. AB - HMOs record medical data and their interactions with patients. Using this data we strive to identify sub-populations of healthcare customers based on their communication patterns and characterize these sub-populations by their socio demographic, medical, treatment effectiveness, and treatment adherence profiles. This work will be used to develop tools and interventions aimed at improving patient care. The process included: (1) Extracting socio-demographic, clinical, laboratory, and communication data of 309,460 patients with diabetes in 2015, aged 32+ years, having 7+ years of the disease treated by Clalit Healthcare Services; (2) Reducing dimensions of continuous variables; (3) Finding the K communication-patterns clusters; (4) Building a hierarchical clustering and its associated heatmap to summarize the discovered clusters; (5) Analyzing the clusters found; (6) Validating results epidemiologically. Such a process supports understanding different communication-channel usage and the implementation of personalized services focusing on patients' needs and preferences. PMID- 29039370 TI - De-Identification of Medical Narrative Data. AB - Maintaining data security and privacy in an era of cybersecurity is a challenge. The enormous and rapidly growing amount of health-related data available today raises numerous questions about data collection, storage, analysis, comparability and interoperability but also about data protection. The US Health Portability and Accountability Act (HIPAA) of 1996 provides a legal framework and a guidance for using and disclosing health data. Practically, the approach proposed by HIPAA is the de-identification of medical documents by removing certain Protected Health Information (PHI). In this work, a rule-based method for the de identification of French free-text medical data using Natural Language Processing (NLP) tools will be presented. PMID- 29039371 TI - Regional Monitoring of Cervical Cancer. AB - Cervical cancer is one of the most important causes of death in women in fertile age in Romania. In order to discover high-risk situations in the first stages of the disease it is important to enhance prevention actions, and ICT, respectively cloud computing and Big Data currently support such activities. The national screening program uses an information system that based on data from different medical units gives feedback related to the women healthcare status and provides statistics and reports. In order to ensure the continuity of care it is updated with HL7 CDA support and cloud computing. The current paper presents the solution and several results. PMID- 29039372 TI - Weighting Experience-Based Decision Support on the Basis of Clinical Outcomes' Assessment. AB - Technologies such as decision support systems are expected to help clinicians implement clinical practice guidelines (CPGs) with the aim of decreasing practice variations and improving clinical outcomes. However, if CPGs provide recommendations to improve patient care, they may fail to take into account actual clinical outcomes associated to the recommended treatment, such as adverse events or secondary effects. In this paper, we present a novel experience-based decision support approach applied to the management of breast cancer, the most commonly diagnosed cancer among women worldwide. Capitalizing on the clinical know-how of physicians and the modeling of patient's outcomes and toxicities in a computer interpretable way, we are able to discover new knowledge that helps improving patient-centered clinical care. This work is conducted within the EU Horizon 2020 project DESIREE. PMID- 29039373 TI - DisEpi: Compact Visualization as a Tool for Applied Epidemiological Research. AB - Outcomes research and evidence-based medical practice is being positively impacted by proliferation of healthcare databases. Modern epidemiologic studies require complex data comprehension. A new tool, DisEpi, facilitates visual exploration of epidemiological data supporting Public Health Knowledge Discovery. It provides domain-experts a compact visualization of information at the population level. In this study, DisEpi is applied to Attention Deficit/Hyperactivity Disorder (ADHD) patients within Clalit Health Services, analyzing the socio-demographic and ADHD filled prescription data between 2006 and 2016 of 1,605,800 children aged 6 to 17 years. DisEpi's goals facilitate the identification of (1) Links between attributes and/or events, (2) Changes in these relationships over time, and (3) Clusters of population attributes for similar trends. DisEpi combines hierarchical clustering graphics and a heatmap where color shades reflect disease time-trends. In the ADHD context, DisEpi allowed the domain-expert to visually analyze a snapshot summary of data mining results. Accordingly, the domain-expert was able to efficiently identify that: (1) Relatively younger children and particularly youngest children in class are treated more often, (2) Medication incidence increased between 2006 and 2011 but then stabilized, and (3) Progression rates of medication incidence is different for each of the 3 main discovered clusters (aka: profiles) of treated children. DisEpi delivered results similar to those previously published which used classical statistical approaches. DisEpi requires minimal preparation and fewer iterations, generating results in a user-friendly format for the domain-expert. DisEpi will be wrapped as a package containing the end-to-end discovery process. Optionally, it may provide automated annotation using calendar events (such as policy changes or media interests), which can improve discovery efficiency, interpretation, and policy implementation. PMID- 29039375 TI - DataWell: Public Involvement in the Development of a Federated Platform for Shared Patient Records in Greater Manchester, U.K. AB - Sharing personal health data for direct care, health improvement, planning and research is recognised as important to improving the quality and safety of care. However, the complexities of sharing data, including technology, information governance and consent issues, means that many projects have difficulty communicating with the public about why they wish to share data, or what the benefits might be. Great Manchester Academic Health Science Network has established a Public Experience Group to help co-design the requirements for a health information exchange, called DataWell, across over 30 health and care organisations in Greater Manchester. This group has allowed the programme to uniquely respond to questions of how consent and data sharing should work with DataWell for direct care, as well as exploring other uses of the data, including planning and research. PMID- 29039374 TI - The Meaning of Patient Empowerment in the Digital Age: The Role of Online Patient Communities. AB - Traditionally, patient empowerment has been used as a strategy for health promotion. The rise of online communities of patients represents a good example of how patient empowerment occurs, independently of the intervention of existing healthcare providers and insurers, allowing thus a more accurate definition of meaning of this concept. We describe two situations related with the development of health-related social networks: (1) The emergence of a new biomedical research model in which patients lead research, shifting the equilibrium of power from the professionals to research subjects themselves, and (2) The emergence of Lay Crowd Sourced Expertise in these communities, arising from the daily exchange among patients affected by chronic conditions and their relatives, giving place to a new era of bottom-up data generation, previously unknown in biomedical sciences. We enrich these descriptions by analyzing interviews to key actors of these "on line" communities": Michael Chekroun, founder of "Carenity, France", and Paul Wicks Vice President at "PatientsLikeMe, USA". PMID- 29039376 TI - Decision Support Systems in Health Care - Velocity of Apriori Algorithm. AB - The amount of stored data in health information systems can reach tera- and petabytes and application of specific algorithms in the field of data mining makes finding useful information suitable for making quality business decisions. A frequently used method for determining the rules of the relationship between attributes is the Association rule by applying Apriori algorithm. Lack of basic Apriori algorithm is derived from the slow work due to multiple scanned data sets. By examining the speed of generating the basic rules in relation to the improved Apriori algorithm by using software RapidMiner confirmed that the time required to generate rules for Improved algorithm is shorter, the rules are quickly generated particularly for large data sets, which is an advantage for making decisions. PMID- 29039377 TI - A Case Study of the Technology Use and Information Flow at a Hospital-Driven Telemedicine Service. AB - Health care services face the challenge of providing individualised treatment to a growing ageing population prone to chronic conditions and multi-morbidities. The research project Patients and Professionals in Productive Teams aims to study health care services that are run with a patient-centred teamwork approach. In this context, a case study was made of a hospital-driven telemedicine service for chronic obstructive pulmonary disease patients after hospital discharge, with a focus on information flow and technology use. The methods used were observation and interviews with key informants. The results showed that the technology was perceived as well-functioning for telemedicine support, but the technology used was a standalone system and not integrated with the electronic health record of the hospital. In addition, there was lack of support to provide the patients at home with written instructions on advices of medical treatment and care. The electronic information used for this telemedicine services, allowed shared access of information for teamwork between professional only within the hospital. PMID- 29039378 TI - DNA Encoding Training Using 3D Gesture Interaction. AB - The work described in this paper summarizes the development process and presents the results of a human genetics training application, studying the 20 amino acids formed by the combination of the 3 nucleotides of DNA targeting mainly medical and bioinformatics students. Currently, the domain applications using recognized human gestures of the Leap Motion sensor are used in molecules controlling and learning from Mendeleev table or in visualizing the animated reactions of specific molecules with water. The novelty in the current application consists in using the Leap Motion sensor creating new gestures for the application control and creating a tag based algorithm corresponding to each amino acid, depending on the position in the 3D virtual space of the 4 nucleotides of DNA and their type. The team proposes a 3D application based on Unity editor and on Leap Motion sensor where the user has the liberty of forming different combinations of the 20 amino acids. The results confirm that this new type of study of medicine/biochemistry using the Leap Motion sensor for handling amino acids is suitable for students. The application is original and interactive and the users can create their own amino acid structures in a 3D-like environment which they could not do otherwise using traditional pen-and-paper. PMID- 29039381 TI - Taking Nursing Informatics into the Future. AB - The new board EFMIs Working Group have has planned the future strategy for involving nurses in informatics. The strategy is to bring nursing informatics into the future. It is important to ensure that the next generation of nurses is involved in the work with Nursing Informatics and share knowledge. It must be done with a targeted effort including of social media and a more offensive effort at the annual MIE meetings. PMID- 29039396 TI - Identifying Personal Goals of Patients With Long Term Condition: A Service Design Thinking Approach. AB - Care for patients with long term conditions is often characterized as fragmented and ineffective, and fails to engage the resources of patients and their families in the care process. Information and communication technology can potentially help bridge the gap between patients' lives and resources and services provided by professionals. However, there is little attention on how to identify and incorporate the patients' individual needs, values, preferences and care goals into the digitally driven care settings. We conducted a case study with healthcare professionals and patients participated applying a service design thinking approach. The participants could elaborate some personal goals of patients with long term condition which can potentially be incorporated in digitally driven care plans using examples from their own experiences. PMID- 29039407 TI - Smart Information Management in Health Big Data. AB - The smart information management system (SIMS) is concerned with the organization of anonymous patient records in a big data and their extraction in order to provide needful real-time intelligence. The purpose of the present study is to highlight the design and the implementation of the smart information management system. We emphasis, in one hand, the organization of a big data in flat file in simulation of nosql database, and in the other hand, the extraction of information based on lookup table and cache mechanism. The SIMS in the health big data aims the identification of new therapies and approaches to delivering care. PMID- 29039413 TI - VTA mTOR Signaling Regulates Dopamine Dynamics, Cocaine-Induced Synaptic Alterations, and Reward. AB - Mechanistic target of rapamycin (mTOR) regulates long-term synaptic plasticity, learning, and memory by controlling dendritic protein synthesis. The mTOR inhibitor rapamycin has been shown to attenuate the behavioral effects of drugs of abuse, including cocaine. Using viral vectors to selectively delete mTOR in the ventral tegmental area (VTA) in adult male mTORloxP/loxP mice, we investigated the role of mTOR in regulating neuronal morphology, basal synaptic transmission, dopamine dynamics, and cocaine-induced synaptic plasticity and rewarding effects. We find that targeted deletion of mTOR in the VTA had no significant effects on soma size and dendritic morphology of VTA neurons but significantly decreased dopamine release and reuptake in the nucleus accumbens (NAc) shell, a major target region. Western blot analysis revealed that mTOR deletion led to decreases in phosphorylated tyrosine hydroxylase (pTH-Ser40) levels in the VTA and dopamine transporter expression in the NAc. mTOR deletion had no significant effects on basal excitatory transmission in VTA dopamine neurons but caused an increase in GABAergic inhibition because of an increase in VTA GABAergic neuron firing. Furthermore, mTOR deletion attenuated conditioned place preference to cocaine and cocaine-induced potentiation of excitation and reduction of GABAergic inhibition in VTA dopamine neurons. Taken together, these results suggest that loss of mTOR in the VTA shifts the balance of excitatory and inhibitory synaptic transmission and decreases dopamine release and reuptake in the NAc. In addition, VTA mTOR signaling regulates cocaine-cue associative learning and cocaine-induced synaptic plasticity in VTA dopamine neurons. PMID- 29039412 TI - Intermittent fasting promotes adipose thermogenesis and metabolic homeostasis via VEGF-mediated alternative activation of macrophage. AB - Intermittent fasting (IF), a periodic energy restriction, has been shown to provide health benefits equivalent to prolonged fasting or caloric restriction. However, our understanding of the underlying mechanisms of IF-mediated metabolic benefits is limited. Here we show that isocaloric IF improves metabolic homeostasis against diet-induced obesity and metabolic dysfunction primarily through adipose thermogenesis in mice. IF-induced metabolic benefits require fasting-mediated increases of vascular endothelial growth factor (VEGF) expression in white adipose tissue (WAT). Furthermore, periodic adipose-VEGF overexpression could recapitulate the metabolic improvement of IF in non-fasted animals. Importantly, fasting and adipose-VEGF induce alternative activation of adipose macrophage, which is critical for thermogenesis. Human adipose gene analysis further revealed a positive correlation of adipose VEGF-M2 macrophage WAT browning axis. The present study uncovers the molecular mechanism of IF mediated metabolic benefit and suggests that isocaloric IF can be a preventive and therapeutic approach against obesity and metabolic disorders. PMID- 29039414 TI - The Limbic System in Youth Depression: Brain Structural and Functional Alterations in Adolescent In-patients with Severe Depression. AB - Adolescent-onset major depressive disorder (MDD) is associated with an increased risk of recurrent depressive episodes, suicidal behaviors, and psychiatric morbidity throughout the lifespan. The objective of the present study was to investigate brain structural and functional changes in adolescent patients with MDD. Furthermore, we aimed to clarify the influence of early-life stress on brain function and structure. The study investigated adolescent patients with severe MDD (n=20, mean age=16.0, range=15-18 years) and a control sample of matched healthy adolescents (n=21, mean age=16.6, range=15-18 years). Functional MRI data were obtained using a face-matching paradigm to investigate emotion processing. Structural MRI data were analyzed using voxel-based morphometry (VBM). In line with previous studies on adult MDD, adolescent patients showed elevated amygdala activity to negative and reduced amygdala activity to positive emotional stimuli. Furthermore, MDD patients showed smaller hippocampal volumes compared to healthy adolescents. Higher levels of childhood maltreatment were associated with smaller hippocampal volumes in both depressed patients and healthy controls, whereby no associations between amygdala reactivity and childhood maltreatment were found. Our results suggest that hippocampal alterations in youth MDD patients may at least partly be traced back to higher occurrence of early-life adverse experiences. Regarding the strong morphometric impact of childhood maltreatment and its distinctly elevated prevalence in MDD populations, this study provides an alternative explanation for frequently observed limbic structural abnormalities in depressed patients. PMID- 29039415 TI - CRISPR-UMI: single-cell lineage tracing of pooled CRISPR-Cas9 screens. AB - Pooled CRISPR screens are a powerful tool for assessments of gene function. However, conventional analysis is based exclusively on the relative abundance of integrated single guide RNAs (sgRNAs) between populations, which does not discern distinct phenotypes and editing outcomes generated by identical sgRNAs. Here we present CRISPR-UMI, a single-cell lineage-tracing methodology for pooled screening to account for cell heterogeneity. We generated complex sgRNA libraries with unique molecular identifiers (UMIs) that allowed for screening of clonally expanded, individually tagged cells. A proof-of-principle CRISPR-UMI negative selection screen provided increased sensitivity and robustness compared with conventional analysis by accounting for underlying cellular and editing-outcome heterogeneity and detection of outlier clones. Furthermore, a CRISPR-UMI positive selection screen uncovered new roadblocks in reprogramming mouse embryonic fibroblasts as pluripotent stem cells, distinguishing reprogramming frequency and speed (i.e., effect size and probability). CRISPR-UMI boosts the predictive power, sensitivity, and information content of pooled CRISPR screens. PMID- 29039416 TI - Antibodies to biotin enable large-scale detection of biotinylation sites on proteins. AB - Although purification of biotinylated molecules is highly efficient, identifying specific sites of biotinylation remains challenging. We show that anti-biotin antibodies enable unprecedented enrichment of biotinylated peptides from complex peptide mixtures. Live-cell proximity labeling using APEX peroxidase followed by anti-biotin enrichment and mass spectrometry yielded over 1,600 biotinylation sites on hundreds of proteins, an increase of more than 30-fold in the number of biotinylation sites identified compared to streptavidin-based enrichment of proteins. PMID- 29039417 TI - Protein interaction perturbation profiling at amino-acid resolution. AB - The identification of genomic variants in healthy and diseased individuals continues to rapidly outpace our ability to functionally annotate these variants. Techniques that both systematically assay the functional consequences of nucleotide-resolution variation and can scale to hundreds of genes are urgently required. We designed a sensitive yeast two-hybrid-based 'off switch' for positive selection of interaction-disruptive variants from complex genetic libraries. Combined with massively parallel programmed mutagenesis and a sequencing readout, this method enables systematic profiling of protein interaction determinants at amino-acid resolution. We defined >1,000 interaction disrupting amino acid mutations across eight subunits of the BBSome, the major human cilia protein complex associated with the pleiotropic genetic disorder Bardet-Biedl syndrome. These high-resolution interaction-perturbation profiles provide a framework for interpreting patient-derived mutations across the entire protein complex and thus highlight how the impact of disease variation on interactome networks can be systematically assessed. PMID- 29039419 TI - Prostate cancer: The importance of the mitochondrial genome. PMID- 29039418 TI - Rapid nonlinear image scanning microscopy. AB - Image scanning microscopy (ISM) doubles the resolution of a conventional confocal microscope for super-resolution imaging. Here, we describe an all-optical ISM design based on rescanning microscopy for two-photon-excited fluorescence and second-harmonic generation that allows straightforward implementation into existing microscopes. The design offers improved sensitivity and high frame rates relative to those of existing systems. We demonstrate its utility using fixed and living specimens as well as collagen hydrogels. PMID- 29039420 TI - Kidney cancer: PSMA: a potential therapeutic target in RCC. PMID- 29039421 TI - Haematological cancer: Extended EFS with rituximab. PMID- 29039423 TI - Breast Cancer: Abemaciclib effective in combination with aromatase inhibition. PMID- 29039424 TI - Skin cancer: Propranolol limits melanoma recurrence. PMID- 29039422 TI - Drug development for noncastrate prostate cancer in a changed therapeutic landscape. AB - The unprecedented progress in the treatment of metastatic castration-resistant prostate cancer is only beginning to be realized in patients with noncastrate disease. This slow progress in part reflects the use of trial objectives focused on time-to-event end points, such as time to metastasis and overall survival, which require long follow-up durations and large sample sizes, and has been further delayed by the use of approved therapies that are effective at the time of progression. Our central hypotheses are that progress can be accelerated, and that outcomes can be improved by shifting trial objectives to response measures occurring early that solely reflect the effects of the treatment. To test these hypotheses, a continuously enrolling multi-arm, multi-stage randomized trial design, analogous to that used in the STAMPEDE trial, has been developed. Eligibility is focused on patients with incurable disease or those with a high risk of death with any form of monotherapy alone. The primary objective is to eliminate all disease using a multimodality treatment strategy. End points include pathological complete response and an undetectable level of serum prostate-specific antigen, with recovery of serum testosterone levels. Both are binary, objective, and provide an early, quantitative indication of efficacy. PMID- 29039425 TI - Imaging biomarkers exist and they underpin clinical decision-making. AB - This corrects the article DOI: 10.1038/nrclinonc.2017.84. PMID- 29039426 TI - Corrigenda: Premna bhamoensis (Lamiaceae, Premnoideae), a new species from Kachin State, northeastern Myanmar. AB - [This corrects the article DOI: 10.3897/phytokeys.83.12869.]. PMID- 29039427 TI - Towards a taxonomy of topology for polynuclear aromatic hydrocarbons: linking electronic and molecular structure. AB - Trends linking the topological characteristics of polynuclear aromatic hydrocarbons (PAH) to their electronic properties are reported. TD-DFT electronic spectra computations, using the 6-31G* basis set and B3LYP exchange correlation functional, were calculated for a series of PAH, allowing for the HOMO-LUMO gaps to be reported. Clar structures provide an avenue to link the physical structure and the aromaticity of the molecule; which, when extended by bond length and harmonic oscillator model of aromaticity analysis, provide powerful tools to understand the link between electronic and physical structure. These results lead to the conclusion that all PAH structures show a decrease in HOMO-LUMO gap as a function of size, but the rate of that decrease is directly related to the topology of the molecules. A PAH taxonomy was developed that categorizes PAH into categories with similar topological properties, which allows for modelling of changes in the HOMO-LUMO gap with PAH size. An atom-pair minimization algorithm was used to calculate the binding energy (BE) of homogeneous dimers of the studied PAH. The BE per carbon atom increases with the overall size of the structure to an asymptotic limit, but as with the HOMO-LUMO gap, topology plays a critical secondary factor. Previously published, experimentally determined optical band gaps (OBG) from Tauc/Davis-Mott analysis of extinction spectra in various laminar, non-premixed flames produced a correlation between the HOMO-LUMO gaps of high-symmetry, nearly circular D2h symmetry molecules to molecular size. The work presented here provides a much more nuanced and predictive evaluation of how OBG depends on structure and size. PMID- 29039428 TI - Photolysis of polymeric self-assembly controlled by donor-acceptor interaction. AB - A photodegradable supramolecular polymer was constructed using cucurbit[8]uril (CB[8]) and an alkoxyanthracene guest. The monomeric unit was photostable because of the intramolecular donor-acceptor interaction. However, upon complexation with CB[8], the photolysis of alkoxyanthracene was enhanced, which endowed the supramolecular polymer with great photoreactivity. PMID- 29039429 TI - Highly active 3-dimensional cobalt oxide nanostructures on the flexible carbon substrates for enzymeless glucose sensing. AB - The demand for electrochemical sensors with high sensitivity and reliability, fast response, and excellent selectivity has stimulated intensive research on developing highly active nanomaterials. In this work, freestanding 3D/Co3O4 thorn like and wire-like (nanowires) nanostructures are directly grown on a flexible carbon fiber paper (CFP) substrate by a single-step hydrothermal process without using surfactants or templates. The 3D/Co3O4 thorn-like nanostructures show higher electrochemical activity than wire-like because of their high conductivity, large specific surface areas, and mesopores on their surface. The characterization of 3D/Co3O4 nanostructures is performed by using high resolution transmission electron microscopy (HRTEM), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction analysis (XRD), and electrochemical methods. The 3D/Co3O4 thorn-like nanostructures displayed non-enzymatic higher catalytic activity towards the electrochemical detection of glucose, compared to the 3D/Co3O4 wire-like morphology. The 3D/Co3O4 thorn-like nanostructures show a wide linear range response of glucose concentration ranging from 1 to 1000 MUM with a detection limit of 0.046 MUM (S/N = 3). The 3D/Co3O4 thorn-like nanostructure-modified CFP electrode selectively detects glucose in the presence of 100-fold excess of interfering compounds. The 3D/Co3O4 thorn-like nanostructure-modified CFP electrode is tested with human blood serum samples and validated with commercial glucose sensors. The newly developed sensor material shows potential for glucose monitoring in clinical and food samples. PMID- 29039430 TI - Hybrid heterojunctions between a 2D transition metal dichalcogenide and metal phthalocyanines: their energy levels vis-a-vis current rectification. AB - We form junctions between a monolayer of a range of metal-phthalocyanines and a monolayer of 2D transition metal dichalcogenides (TMD) through an electrostatic adsorption process. The energy levels of the components, as drawn from scanning tunneling spectroscopy (STS) and the density of states (DOS) thereof, indicated that the hybrid junctions would act as current rectifiers. We have observed that the central metal atom affected the energies of the metalorganics and thereby the rectification ratio of the junctions. In addition, since planar single molecule magnets (SMMs) were used in which magnetization appears due to the 3d-electrons of the metal, we could align the molecules followed by their structural immobilization. We have observed that such an alignment changed their molecular orbitals and hence affected the energy levels at the interface. The rectification ratio of molecule|TMD hybrid junctions depends on the metal in metalorganics and also on their alignment with the substrate electrode. In effect, the rectification ratio in a range of junctions has been correlated to the energy level diagram at the interface. PMID- 29039431 TI - Correction: Sisters together: co-sensitization of near-infrared emission of ytterbium(iii) by BODIPY and porphyrin dyes. AB - Correction for 'Sisters together: co-sensitization of near-infrared emission of ytterbium(iii) by BODIPY and porphyrin dyes' by Hongshan He et al., Chem. Commun., 2017, 53, 10120-10123. PMID- 29039432 TI - Substitution pattern on anthrol carbaldehydes: excited state intramolecular proton transfer (ESIPT) with a lack of phototautomer fluorescence. AB - Photophysical properties and excited state intramolecular proton transfer (ESIPT) reactivity for anthrol carbaldehydes 1-5 have been investigated computationally and experimentally by steady-state and time-resolved fluorescence and laser flash photolysis (LFP). 1,2-Disubstituted anthrol carbaldehydes 1 and 2 are not ESIPT reactive, contrary to naphthol analogues. The main deactivation channels from S1 for 1 and 2 are fluorescence (PhiF = 0.1-0.2) and intersystem crossing (ISC) to almost isoenergetic T2 states. The triplet states from 1 and 2 were detected by LFP (in N2-purged CH3CN, tau = 15 +/- 2 MUs for 1, and tau = 5.5 +/- 0.1 MUs for 2). In contrast, 2,3-disubstituted anthrols 3-5 undergo efficient barrierless ultrafast ESIPT. However, the typical dual emission from locally excited states and ESIPT tautomers were not observed since ESIPT proceeds via a conical intersection with S0 delivering the keto-tautomer in the hot ground state. Therefore, anthrols 3-5 are about ten times less fluorescent compared to 1 and 2, and the emission for 3-5 originates from less-populated conformers that cannot undergo ESIPT. Keto-tautomers for 3-5 were detected in CH3CN by LFP (lambdamax = 370 nm, tau = 30-40 ns). The difference in ESIPT reactivity for 1-3 was fully disclosed by calculations at ADC(2)/aug-cc-pVDZ level of theory, and particularly, by calculation of charge redistribution upon excitation to S1. Only 2,3-disubstituted anthrols exhibit polarization in S1 that increases the electron density on the carbonyl and decreases this density on the phenolic OH, setting the stage for ultrafast ESIPT. PMID- 29039437 TI - Silver-catalyzed decarboxylative acylation of quinoxalin-2(1H)-ones with alpha oxo-carboxylic acids. AB - A novel silver-catalyzed decarboxylative acylation of alpha-oxo-carboxylic acids was developed, by which various 3-acyl quinoxalin-2(1H)-ones were synthesized by direct C-H bond acylation of quinoxalin-2(1H)-ones. In this method, alpha-oxo carboxylic acids served as efficient acylating reagents to in situ generate the required active acyl radical. Its excellent chemoselectivity allowed the molecular diversity of 3-acyl quinoxalin-2(1H)-ones to be achieved by convenient functionalizations of both N1- and C3-positions. PMID- 29039438 TI - Chondroitin sulfate proteoglycans inhibit the migration and differentiation of oligodendrocyte precursor cells and its counteractive interaction with laminin. AB - Cerebral white matter injury (WMI) is a recognized problem in premature infants, particularly in those with very low birth weights. Although the survival rate of premature infants has notably increased due to the advancement of modern medical treatments, their likelihood of developmental disability is higher than infants with an average birth weight. It has been previously reported that oligodendrocyte precursor cells (OPCs) are selectively vulnerable to WMI in premature infants. Following brain injury, glial scars may develop within the white matter. Their main constituent is chondroitin sulphate proteoglycans (CSPGs), revealing a potential association between CSPGs and OPCs. In the present study rat OPCs were cultured in vitro, and the effect of CSPGs on the proliferation, migration and differentiation of OPCs was determined. It was revealed that CSPGs did not affect proliferation, but they did inhibit the migration and differentiation of OPCs. It was also identified that the inhibitory effect of CSPGs was counteracted by laminin. Factor analysis revealed that CSPGs and laminin served interactive roles in OPC differentiation. The effect of CSPGs on OPCs was associated with the downregulation of beta1-integrin, indicating that CSPGs potentially competitively inhibit the beta1-integrin signaling pathway. Collectively, these results suggest that CSPGs serve a role as inhibitors of OPC differentiation and migration, as well as indicating an interaction between CSPGs and laminin. The present study has revealed a potential novel therapeutic target for WMI in premature infants, and identified beta1-integrin signaling as a pathological mechanism for dysfunctional myelination in white matter. PMID- 29039439 TI - Naringin inhibits vascular endothelial cell apoptosis via endoplasmic reticulum stress- and mitochondrial-mediated pathways and promotes intraosseous angiogenesis in ovariectomized rats. AB - In this study, to investigate the effects of naringin on vascular endothelial cell (VEC) function, proliferation, apoptosis, and angiogenesis, rat VECs were cultured in vitro and randomly divided into four groups: control, serum-starved, low-concentration naringin treatment, and high-concentration naringin treatment. MTT assay was used to detect cell proliferation while Hoechst 33258 staining and flow cytometry were used to detect apoptosis. Changes in the expression of apoptosis-associated proteins [GRP78, CHOP, caspase-12, and cytochrome c (Cyt.c)] were detected using western blotting. JC-1 staining was employed to detect changes in mitochondrial membrane potential. Intracellular caspase-3, -8, and -9 activity was determined by spectrophotometry. ELISA was used to detect endothelin (ET), and a Griess assay was used to detect changes in the expression of nitric oxide (NO) in culture medium. The study further divided an ovariectomized (OVX) rat model of osteoporosis randomly into four groups: OVX, sham-operated, low concentration naringin treatment (100 mg/kg), and high-concentration naringin treatment (200 mg/kg). After 3 months of treatment, changes in serum ET and NO expression, bone mineral density (BMD), and microvessel density of the distal femur (using CD34 labeling of VECs) were determined. At each concentration, naringin promoted VEC proliferation in a time- and dose-dependent manner. Naringin also significantly reduced serum starvation-induced apoptosis in endothelial cells, inhibited the expression of GRP78, CHOP, caspase-12, and Cyt.c proteins, and reduced mitochondrial membrane potential as well as reduced the activities of caspase-3 and -9. Furthermore, naringin suppressed ET in vitro and in vivo while enhancing NO synthesis. Distal femoral microvascular density assessment showed that the naringin treatment groups had a significantly higher number of microvessels than the OVX group, and that microvascular density was positively correlated with BMD. In summary, naringin inhibits apoptosis in VECs by blocking the endoplasmic reticulum (ER) stress- and mitochondrial-mediated pathways. Naringin also regulates endothelial cell function and promotes angiogenesis to exert its anti-osteoporotic effect. PMID- 29039440 TI - Betulinic acid induces apoptosis by regulating PI3K/Akt signaling and mitochondrial pathways in human cervical cancer cells. AB - Betulinic acid (BA), a potential anticancer compound, could induce apoptosis in human cervical cancer (HeLa) cells, but its mechanism has yet to be fully elucidated. The present study was focused on deciphering the detailed molecular mechanism of BA-induced apoptosis. In the present study, results indicated that BA was highly effective against HeLa cells via induction of time-dependent apoptosis, and the authors demonstrated that the BA treatment acted through downregulating a phosphatidylinositol 3-kinase (PI3K) subunit and suppressing the Akt phosphorylation at Thr308 and Ser473 after increasing the generation of intracellular reactive oxygen species. Then, BA induced cell cycle arrest at the G0/G1 phase, which was consistent with the cell cycle-related protein results in which BA significantly enhanced the expression of p27Kip and p21Waf1/Cip1 in HeLa cells. This target-specific inhibition was associated with mitochondrial apoptosis, as reflected by the increased expression of Bad and caspase-9, the generation of reactive oxygen species (ROS) and the decline in mitochondrial membrane potential. Moreover, preincubation of the cells with glutathione (antioxidant) blocked the process of apoptosis, prevented the phosphorylation of downstream substrates. These results established that ROS acted as a key factor to effect apoptosis by BA treatment in HeLa cells. Therefore, these findings demonstrated that BA induced apoptosis in HeLa cells by downregulating the expression of PI3K/Akt signaling molecules via ROS, and triggering a mitochondrial pathway. PMID- 29039441 TI - Rivaroxaban attenuates thrombosis by targeting the NF-kappaB signaling pathway in a rat model of deep venous thrombus. AB - Anticoagulant therapy is commonly used for the prevention and treatment of patients with deep venous thrombus. Evidence has shown that rivaroxaban is a potential oral anticoagulant drug for the acute treatment of venous thromboembolism. However, the rivaroxaban-mediated molecular mechanism involved in the progression of deep venous thrombosis has not been investigated. In the present study, we investigated the efficacy of rivaroxaban and the underlying signaling pathways in the prevention and treatment of rats with deep venous thrombosis. A rat model with deep vein thrombus formation was established and received treatment with rivaroxaban or PBS as control. The thrombin-activatable fibrinolysis inhibitor (TAFI) and plasminogen activator inhibitor-1 (PAI-1) were analyzed both in vitro and in vivo. The progression of thrombosis and stroke was evaluated after treatment with rivaroxaban or PBS. Nuclear factor-kappaB (NF kappaB) signaling pathway in venous endothelial cells and in the rat model of deep venous thrombus was assessed. The therapeutic effects of rivaroxaban were evaluated as determined by changes in deep venous thrombosis in the rat model. Our results showed that rivaroxaban markedly inhibited TAFI and PAI-1 expression levels, neutrophils, tissue factor, neutrophil extracellular traps (NETs), myeloperoxidase and macrophages in venous endothelial cells and in the rat model of deep venous thrombus. Expression levels of ADP, PAIs, von Willebrand factor (vWF) and thromboxane were downregulated in vein endothelial cells and in serum from the experimental rats. Importantly, the incidences of inferior vena cava filter thrombus were protected by rivaroxaban during heparin-induced thrombolysis deep venous thrombosis in the rat model. We observed that activity of the NF kappaB signaling pathway was inhibited by rivaroxaban in vein endothelial cells both in vitro and in vivo. Notably, immunohistology indicated that rivaroxaban attenuated deep venous thrombosis and the accumulation of inflammatory factors in the lesions in venous thrombus. Matrix metalloproteinase (MMP) expression and activity were downregulated in rivaroxaban-treated rats with deep venous thrombus. Rivaroxaban inhibited the elasticity of the extracellular matrix and collagen-elastin fibers. On the whole, these results indicate that rivaroxaban attenuates deep venous thrombus through MMP-9-mediated NF-kappaB signaling pathway. PMID- 29039442 TI - Angiogenic effects of apigenin on endothelial cells after hypoxia-reoxygenation via the caveolin-1 pathway. AB - In the present study, we aimed to elucidate whether apigenin contributes to the induction of angiogenesis and the related mechanisms in cell hypoxia reoxygenation injury. The role of apigenin was examined in human umbilical vein endothelial cell (HUVEC) viability, migration and tube formation in vitro. To investigate the related mechanisms, we used caveolin-1 short interfering RNA. The viability of HUVECs was measured using Cell Counting Kit-8 assays, HUVEC migration was analyzed by crystal violet staining, and a tube formation assay was performed using the branch point method. Expression of caveolin-1, vascular endothelial growth factor (VEGF), and endothelial nitric oxide synthase (eNOS) in HUVECs was examined by polymerase chain reaction and western blotting. Our data revealed that apigenin induced angiogenesis in vitro by increasing the tube formation ability of HUVECs, which was counteracted by caveolin-1 silencing. Compared to the NC group, Caveolin-1 and eNOS expression was upregulated by apigenin, whereas compared to the NC group, eNOS expression was increased upon caveolin-1 silencing. The expression of VEGF was increased by treatment with apigenin; however, compared to the NC group, caveolin-1 silencing did not affect VEGF expression, and apigenin did not increase VEGF expression in HUVECs after caveolin-1 silencing. These data suggest that apigenin may be a candidate therapeutic target for stroke recovery by promoting angiogenesis via the caveolin 1 signaling pathway. PMID- 29039443 TI - Grape seed proanthocyanidins inhibit the proliferation, migration and invasion of tongue squamous cell carcinoma cells through suppressing the protein kinase B/nuclear factor-kappaB signaling pathway. AB - Tongue squamous cell carcinoma (TSCC) is the most common oral squamous cell carcinoma. Despite significant advances in combined therapies, the 5-year survival rate of patients with TSCC has not notably improved; this is due to regional recurrences and lymph node metastasis. Grape seed proanthocyanidins (GSPs) are consumed as dietary supplements worldwide and possess anticancer activity against several different types of cancer. However, their effect on TSCC and the underlying mechanisms by which they function remain unclear. In the present study, it was identified that GSPs significantly inhibited the viability and induced the apoptosis of Tca8113 cells in a dose-dependent manner. This was associated with a significantly increased expression of the pro-apoptosis regulator BAX protein and a significantly decreased expression of the anti apoptosis regulator Bcl-2 protein at 100 ug/ml GSPs. In addition, at non-toxic concentrations GSPs significantly inhibited the secretion of matrix metalloproteinase-2 (MMP-2) and MMP-9 from Tca8113 cells, as well as their migration and invasion. Furthermore, it was demonstrated that GSPs significantly inhibited the phosphorylation of protein kinase B (Akt) and IkappaB kinase, as well as the translocation of nuclear factor-kappaB (NF-kappaB) into the nucleus of Tca8113 cells. Taken together, these results suggest that GSPs inhibit the proliferation, migration and invasion of Tca8113 cells through suppression of the Akt/NF-kappaB signaling pathway. This indicates that GSPs may be developed as a novel potential chemopreventive agent against TSCC. PMID- 29039444 TI - Vaspin protects against LPS-induced ARDS by inhibiting inflammation, apoptosis and reactive oxygen species generation in pulmonary endothelial cells via the Akt/GSK-3beta pathway. AB - Acute respiratory distress syndrome (ARDS) is characterized by uncontrolled extravasation of protein-rich fluids, which is caused by disruption and dysfunction of the barrier of pulmonary endothelial cells (ECs). Visceral adipose tissue-derived serine protease inhibitor (vaspin) is a novel adipokine with pleiotropic properties, which has been reported to exert beneficial effects against obesity-associated systemic vascular diseases; however, its effects on ARDS remain unknown. In the present study, mice were subjected to systemic administration of adenoviral vector expressing vaspin (Ad-vaspin) to examine its effects on lipopolysaccharide (LPS)-induced ARDS in vivo. Histological analysis was then conducted, and cytokine [tumor necrosis factor (TNF)-alpha, interleukin (IL)-6 and IL-10] levels, and intercellular cell adhesion molecule-1 (ICAM-1) and adherens junctions (AJs) expression were detected. In addition, human pulmonary microvascular ECs (HPMECs) were treated with recombinant human (rh)-vaspin to further investigate its molecular basis and underlying mechanism. The mRNA expression levels of inflammatory cytokines (TNF-alpha and IL-6) and endothelial specific adhesion markers [vascular cell adhesion molecule-1 and E-selectin], activation of nuclear factor-kappaB, and cell viability and apoptosis were then examined. Furthermore, the expression of AJs and organization of the cytoskeleton, as well as expression and activity of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and generation of reactive oxygen species (ROS) were determined. The results indicated that Ad-vaspin protected against LPS induced ARDS by alleviating the pulmonary inflammatory response and pulmonary EC barrier dysfunction in mice, which was accompanied by activation of the protein kinase B (Akt)/glycogen synthase kinase (GSK)-3beta pathway. In addition, pretreatment of HPMECs with rh-vaspin attenuated inflammation, apoptosis and ROS generation without alterations in AJs and cytoskeletal organization following LPS insult, which was accompanied by activation of the Akt/GSK3beta pathway. In conclusion, the present study demonstrated that vaspin protects against LPS induced ARDS by reversing EC barrier dysfunction via the suppression of inflammation, apoptosis and ROS production in pulmonary ECs, at least partially via activation of the Akt/GSK3beta pathway. These findings provide evidence of a causal link between vaspin and EC dysfunction in ARDS, and suggest a potential therapeutic intervention for patients with ARDS. PMID- 29039445 TI - Isoliquiritigenin suppresses IL-1beta induced apoptosis and inflammation in chondrocyte-like ATDC5 cells by inhibiting NF-kappaB and exerts chondroprotective effects on a mouse model of anterior cruciate ligament transection. AB - Isoliquiritigenin (ISL), a natural flavonoid extracted from licorice, has been demonstrated to exert attenuation of the nuclear factor-kappaB (NF-kappaB) signaling pathway and anti-inflammatory activity in a wide variety of cells. In the present study, the authors first evaluated the effects of ISL on cartilage degeneration in interleukin-1beta (IL-1beta)-stimulated chondrocyte-like ATDC5 cells and in a mouse model of osteoarthritis (OA). The data of a cell counting kit-8 and flow cytometry assay indicated that ISL suppressed the inhibitory effect of IL-1beta on cell viability. The mRNA and protein expression levels of cyclooxygenase-2 and matrix metalloproteinase-13 were significantly decreased, while the expression of collagen II was increased, as indicated by RT-qPCR and western blot analysis following the chondrocyte-like ATDC5 cells were co intervened with IL-1beta and ISL for 48 h. Also, ISL attenuated protein expressions level of pro-apoptotic Bax, cleaved-caspase-3 and cleaved-caspase-9 and promoted expression of anti-apoptotic Bcl-2. Moreover, ISL inhibited NF kappaB p65 phosphorylation induced by IL-1beta. In addition, ISL also increased improved the thickness of hyaline cartilage and the production of proteoglycans in the cartilage matrix in a mouse OA model. These results indicated that ISL exerted anti-inflammatory and anti-apoptotic effects on IL-1beta-stimulated chondrocyte-like ATDC5 cells, which may be associated with the downregulation of the NF-kappaB signaling pathway. In this way, the data supported the conclusion that ISL may be a novel potential preventive agent suitable for use in OA therapy. PMID- 29039446 TI - Protective effect of autophagy in neural ischemia and hypoxia: Negative regulation of the Wnt/beta-catenin pathway. AB - Autophagy is a highly conserved process of self-digestion to promote cell survival in response to nutrient starvation and other metabolic stresses. However, whether ischemic-hypoxic (IH) injury-induced autophagy acts as a neuroprotective mechanism or leads to neuroinjury is a subject of debate. It is known that autophagy is regulated by signaling pathways, including the mammalian target of rapamycin pathway. However, in neural IH injury, whether other signaling pathways are involved in the regulation of autophagy remains to be fully elucidated. In the present study, using the autophagy agonist (rampycin), autophagy antagonist [3-methyl adenine (3-MA)] and lysosome antagonist (MHY1485), autophagy was intervened with at oxygen-glucose deprivation (OGD) 6 h, in order to elucidate the regulatory mechanisms of autophagy. Using immunocytochemistry and western blot analysis, the expression levels of stress-related proteins, such as hypoxia-inducible factor-1alpha (HIF-1alpha) (a key regulator in hypoxia) and cyclooxygenase 2 (COX2; inflammatory indicator), were analyzed. In addition, the upstream proteins (Wnt1 and Wnt3a), downstream proteins (Dvl2, beta-catenin) and target proteins (C-myc and cyclin D) in the Wnt/beta-catenin signaling pathway were examined by immunocytochemistry and western blot analysis. The present study revealed that autophagy was activated with the upregulation of autophagic flux in IH injury; it was demonstrated that autophagy had a protective role in IH injury. The Wnt/beta-catenin pathway was involved in IH injury regulation, and the upstream proteins in the Wnt/beta-catenin signaling pathway were upregulated, whereas downstream proteins were downregulated by the activity of autophagy accordingly. PMID- 29039447 TI - Paralemmin-3 contributes to lipopolysaccharide-induced inflammatory response and is involved in lipopolysaccharide-Toll-like receptor-4 signaling in alveolar macrophages. AB - Alveolar macrophages (AMs) are the first line of defense against foreign stimulation in alveoli, and they participate in inflammatory responses during acute lung injury (ALI). Previous studies indicated that paralemmin-3 (PALM3) expression is induced by lipopolysaccharides (LPS) and may be involved in LPS Toll-like receptor 4 (TLR4) signaling in alveolar epithelial cells. The aim of the present study was to investigate the effect of PALM3 on LPS-induced inflammation and its underlying mechanisms in rat AMs. For this purpose, the authors detected the expression of PALM3 in AMs by reverse transcription quantitative polymerase chain reaction (RT-qPCR) and western blotting following LPS stimulation. Following this, a recombinant adenovirus expressing short hairpin RNA (shRNA) for PALM3 was constructed, as well as a recombinant adenovirus carrying the rat PALM3 gene to modulate the expression of PALM3 in rat AMs. At 48 h after transfection, the PALM3 expression in AMs was detected by RT qPCR and western blotting. The levels of several cytokines and the activity of nuclear factor-kappaB and interferon regulatory factor 3 in AMs were measured after LPS stimulation. The localization of PALM3 and LPS-TLR4 signaling adaptor molecules in AMs was analyzed by confocal microscopy, and the physical interactions of PALM3 with these adaptors were assessed by co-immunoprecipitation assays. LPS induced PALM3 expression in AMs and that PALM3 expression promoted the LPS-induced inflammatory response, while PALM3 downregulation suppressed the LPS-induced inflammatory response in AMs. In addition, the results demonstrated that PALM3 could interact with TLR4, myeloid differentiation factor 88, interleukin (IL)-1 receptor associated kinase-1, tumor necrosis factor receptor associated factor-6, and Toll-IL-1 receptor containing adapter molecule-2 in AMs after LPS stimulation. These results suggested that PALM3 contributes to the LPS induced inflammatory response and participates in LPS-TLR4 signaling in AMs. These data may provide the basis for the development of novel targeted therapeutic strategies of treating ALI. PMID- 29039448 TI - Astragaloside IV attenuates the H2O2-induced apoptosis of neuronal cells by inhibiting alpha-synuclein expression via the p38 MAPK pathway. AB - An oxidative stress insult is one of the principal causes of Parkinson's disease. Astragaloside IV (AS-IV), a constituent extracted from Astragalus membranaceus, has been demonstrated to exert antioxidant effects. However, the mechanisms responsible for the antioxidant properties and neuroprotective effects of AS-IV remain unclear. In this study, we examined the protective effects of AS-IV against the apoptosis of human neuronal cells (SH-SY5Y cells) induced by hydrogen peroxide (H2O2). The results revealed that AS-IV pre-treatment attenuated the H2O2-induced loss of SH-SY5Y cells in a dose-dependent manner; AS-IV exerted significant protecitve effects by decreasing the apoptotic ratio and attenuating reactive oxygen species overproduction in H2O2-exposed SH-SY5Y cells. By means of immunofluorescence staining, AS-IV was found to decrease the expression of alpha synuclein and to increase the expression of tyrosine hydroxylase (TH) in the cells, which had been increased and decreased, respectively by H2O2. As shown by western blot analysis, the protective effects of AS-IV against SH-SY5Y cell injury induced by H2O2 were also mediated via the downregulation of the ratio of Bax/Bcl-2. We found that the neuroprotective effects of AS-IV were associated with the inhibition of the expression of the alpha-synuclein via the p38 mitogen activated protein kinase (MAPK) signalling pathway. On the whole, our results suggest that AS-IV exerts protective effects against neurodegenerative diseases by targeting alpha-synuclein or TH. PMID- 29039450 TI - Insulin restores UCP3 activity and decreases energy surfeit to alleviate lipotoxicity in skeletal muscle. AB - An early insulin regimen ameliorates glucotoxicity but also lipotoxicity in type 2 diabetes; however, the underlying mechanism remains elusive. In the present study, we investigated the role of mitochondria in lipid regulation following early insulin administration in insulin-resistant skeletal muscle cells. Male C57BL/6 mice, fed a high-fat diet (HFD) for 8 weeks, were treated with insulin for 3 weeks, and L6 myotubes cultured with palmitate (PA) for 24 h were incubated with insulin for another 12 h. The results showed that insulin facilitated systemic glucose disposal and attenuated muscular triglyceride accumulation in vivo. Recovery of AMP-activated protein kinase (AMPK) phosphorylation, inhibition of sterol-regulated element binding protein-1c (SREBP-1c) and increased carnitine palmitoyltransferase-1B (CPT1B) expression were observed after insulin administration. Moreover, increased ATP concentration and cellular energy charge elicited by over-nutrition were suppressed by insulin. Despite maintaining respiratory complex activities, insulin restored muscular uncoupling protein 3 (UCP3) protein expression in vitro and in vivo. By contrast, knockdown of UCP3 abrogated insulin-induced restoration of AMPK phosphorylation in vitro. Importantly, the PA-induced decrease in UCP3 was blocked by the proteasome inhibitor MG132, and insulin reduced UCP3 ubiquitination, thereby prohibiting its degradation. Our findings, focusing on energy balance, provide a mechanistic understanding of the promising effect of early insulin initiation on lipotoxicity. Insulin, by recovering UCP3 activity, alleviated energy surfeit and potentiated AMPK-mediated lipid homeostasis in skeletal muscle cells following exposure to PA and in gastrocnemius of mice fed HFD. PMID- 29039449 TI - Crosstalk between TLR2 and Sphk1 in microglia in the cerebral ischemia/reperfusion-induced inflammatory response. AB - Stroke is associated with high morbidity and mortality, and much remains unknown about the injury-related mechanisms that occur following reperfusion. This study aimed to explore the roles of Toll-like receptor 2 (TLR2) and sphingosine kinase 1 (Sphk1) in microglial cells in inflammatory responses induced by cerebral ischemia/reperfusion (I/R). For this purpose, C57BL/6 mice were randomly divided into 4 groups as follows: the sham-operated group, the I/R group, the I/R group treated with TLR2 antibody, and the I/R group treated with N,N dimethylsphingosine. Focal cerebral I/R was induced by middle cerebral artery occlusion. Double-labeling immunofluorescence was used to observe the protein expression of TLR2 and Sphk1 in the ischemic brain tissue. Quantitative polymerase chain reaction was performed to determine the mRNA levels of TLR2 and Sphkl in ischemic brain tissue. Enzyme-linked immunosorbent assay was carried out to detect the protein contents of interleukin (IL)-1beta, tumor necrosis factor alpha (TNF-alpha), IL-17 and IL-23 in ischemic brain tissue. The results revealed that I/R upregulated TLR2 and Sphk1 expression in microglial cells, and the inhibition of either TLR2 or Sphk1 inhibited the expression of the pro inflammatory cytokines, IL-1beta, TNF-alpha, IL-17 and IL-23. Notably, the inhibition of TLR2 activity also decreased Sphk1 expression. These results thus indicate that the activation of microglial cells, via a TLR2->Sphk1->pro inflammatory cytokine (IL-1beta, TNF-alpha, IL-17 and IL-23) pathway, may participate in I/R injury. PMID- 29039451 TI - Anti-inhibitory potential of an ethanolic extract of Distromium decumbens on pro inflammatory cytokine production in Pseudomonas aeruginosa lipopolysaccharide stimulated nasal polyp-derived fibroblasts. AB - Marine algae are rich sources of biologically active compounds that may present useful leads in the development of pharmaceuticals, nutraceuticals, and functional foods. The main aim of this study was to identify the possible anti inflammatory effects of Distromium decumbens in nasal polyp-derived fibroblasts (NPDFs) and its associated mechanism of action. NPDFs were stimulated by Pseudomonas aeruginosa lipopolysaccharide (PA-LPS) and treated with an ethanolic extract of Distromium decumbens (DDE). The production of interleukin-6 (IL-6) and IL-8 in the supernatant, the phosphorylation of mitogen-activated protein kinase (MAPK) molecules [extracellular signal-related kinase 1/2 (ERK1/2), c-Jun N terminal kinase and p38 MAPK] and Akt, and the activation of nuclear factor kappaB (NF-kappaB) were assayed in the PA-LPS-stimulated NPDFs untreated or treated with DDE. The expression levels of IL-6 and IL-8 in PA-LPS-exposed NPDFs were detected using enzyme-linked immunosorbent assays. The mechanisms by which DDE regulates cellular signaling cascades were investigated using electrophoretic mobility shift assays and western blot analysis. Functional validation was performed by measuring the inhibitory effects of DDE on neutrophil migration in vitro. DDE reduced the expression of IL-6 and IL-8 stimulated by PA-LPS in NPDFs. The activation of ERK1/2, Akt and NF-kappaB by PA-LPS was inhibited by DDE. Inhibitors of ERK1/2, Akt and NF-kappaB inhibited the expression of IL-6 and IL 8. In addition, DDE significantly attenuated PA-LPS-induced migration of differentiated HL-60 cells. The present findings suggest that DDE potently inhibits inflammation through the ERK1/2, Akt and NF-kappaB signaling pathways in NPDFs. PMID- 29039452 TI - Molecular analysis of keratocystic odontogenic tumor cell lines derived from sporadic and basal cell nevus syndrome patients. AB - Keratocystic odontogenic tumor (KCOT) is a benign tumor often associated with basal cell nevus syndrome (BCNS). Mutations in Patched 1 (PTCH1), the Hedgehog (Hh) receptor, are responsible for BCNS. BCNS is distinguished by morphological anomalies and predisposition to benign and malignant tumors, including medulloblastoma, basal cell carcinoma, KCOT and ovarian fibromas. Among these tumors, KCOT is the least well studied because a suitable model system is not available for its investigation. To enable KCOT to be studied, we established two KCOT cell lines, one from a BCNS case (designated as iKCOT1) and one from a sporadic KCOT case (designated as sKCOT1). The BCNS-derived KCOT cell line, iKCOT1, retained a germline-mutated PTCH1 allele and a wild-type PTCH1 allele. The sporadic KCOT-derived KCOT cell line, sKCOT1, had different loss-of-function PTCH1 mutations on both alleles. Both cell lines expressed stem cell markers (CD44, SOX2 and BMI1), mesenchymal cell markers (CDH2, VIM and SNAI2) and a neurogenic marker (NEFL). Culture of the cell lines in high calcium concentration media induced expression of epithelial cell and keratinocyte marker proteins (CDH1, CLDN1, KRT10 and IVL). Parakeratosis, which is characteristic for KCOTs, was observed in 2-D cultures. The similarities in protein expression patterns between the two cell lines suggested that common mechanisms underlie the development of both types of KCOT and a probable common origin of KCOT cells. PMID- 29039453 TI - MicroRNA-125a-3p is involved in early behavioral disorders in stroke-afflicted rats through the regulation of Cadm2. AB - Ischemic strokes carry a significant risk of mortality and recurrent vascular events. Recent studies suggest that changes in microRNAs (miRNAs or miRs) may affect the development of the stroke. However, few studies have investigated the role of miRNAs in behavioral disorder in early stroke. In the present study, animal models of middle cerebral artery occlusion (MCAO) are used, as well as a cell model of neurite outgrowth to further investigate the role of miRNAs in targeting synapse-associated proteins expression in early stroke. The authors used miRNA expression microarrays on RNA extracted from the cortex tissue samples from the rats of MCAO and control rats. Reverse transcription-quantitative polymerase chain reaction was conducted to verify the candidate miRNAs discovered by microarray analysis. Data indicated that miR-125a was significantly increased in the cortex of the model of MCAO, which were concomitant with that rats of MCAO at the same age displayed significant behavioral deficits. Bioinformatics analysis predicted the cell adhesion molecule 2 (Cadm2, mRNA) neurite outgrowth associated protein is targeted by miR-125a. Overexpression of miR-125a reduced the level of Cadm2 expression in PC12 cell injury induced by free-serum. In contrast, inhibition of miR-125a using miR-125a inhibitors significantly resulted in higher levels of Cadm2 expression. In conclusion, miR-125a is involved in the behavioral disorder of animal models of MCAO by regulation of Cadm2. PMID- 29039454 TI - SOX4 arrests lung development in rats with hyperoxia-induced bronchopulmonary dysplasia by controlling EZH2 expression. AB - Bronchopulmonary dysplasia (BPD) is currently the most common severe complication in premature infants and is characterized by the arrest of alveolar and vascular growth. Alveolar type II cells play an important role in the pathological foundation of BPD. An association of BPD with epithelial-to-mesenchymal transition (EMT) in type II cells exposed to hyperoxia was previously identified. SOX4, a transcription factor that is indispensable to embryogenesis, including lung development, participates in regulating EMT and cell survival, affecting tumorigenesis. The aim of the present study was to investigate the involvement of SOX4 in the occurrence of BPD, which, to the best of our knowledge, has not been previously determined. For this purpose, newborn rats were randomly divided into two treatment groups: The model group was exposed to hyperoxia (80-85% O2), while the control group was kept under normoxic conditions (21% O2). Lung tissues were collected on postnatal days 1, 3, 7, 14 and 21 and morphological changes in the lungs were examined by hematoxylin and eosin staining. The location of SOX4 in type II cells was detected by double immunofluorescence. The expression of SOX4 and enhancer of zeste homolog 2 (EZH2) in type II cells and lung tissues were detected by immunochemistry, western blotting and quantitative polymerase chain reaction analysis. The results demonstrated that, compared with the control group, the radial alveolar count decreased rapidly in the model group, accompanied by increased mean alveolar diameter and alveolar septal thickness. SOX4 and EZH2 were highly expressed in type II cells exposed to hyperoxia. However, in total lung tissues, SOX4 and EZH2 expression was profoundly decreased in the early stages and increased in the late stages following exposure to hyperoxia. The expression of the EZH2 protein was positively correlated with that of the SOX4 protein. In conclusion, at the alveolar stage, which is a critical period after birth for lung development, hyperoxia induced dysregulation of SOX4 and EZH2 in rat lungs, indicating that SOX4 may contribute to the disruption of lung development in BPD by regulating EZH2 expression. PMID- 29039455 TI - Cell-penetrating peptides and their utility in genome function modifications (Review). AB - For almost 30 years, studies have confirmed the effectiveness of cell-penetrating peptides (CPPs) in the facilitation of the intracellular delivery of various cargo molecules, including RNA, DNA, plasmids, proteins or nanoparticles, under in vitro and in vivo conditions. The cellular uptake of CPPs occurs via energy dependent, as well as -independent mechanisms. In this relatively new direction of research, studies have attempted to introduce genome modification systems into cells by CPPs. Cellular uptake of CPPs carrying either covalently bound or electrostatically conjugated cargo, has several advantages over viral delivery systems, as it does not lead to any significant cytotoxicity or immunogenicity, and simultaneously it is more efficient than other non-viral systems. So far, CPPs have been successfully used to introduce Cre recombinase, zinc finger nucleases, transcription activator-like effector nucleases and clustered regularly interspaced short palindromic repeats systems into cells. The present article systematically reviewed the information obtained from studies on CPPs and assessed their utility with regard to their effectiveness and safety of use. PMID- 29039456 TI - Construction of a Bcl-2-shRNA expression vector and its effect on the mitochondrial apoptosis pathway in SW982 cells. AB - Apoptosis is considered to serve an important role in the pathogenesis of rheumatoid arthritis. The aim of the present study was to construct Bcl-2-short hairpin (sh)RNA expression vectors and transfect them into human synovial sarcoma SW982 cells, in order to screen for an effective interference sequence and analyze the effects of this interference on the expression levels of Bcl-2 and other molecules associated with the mitochondrial apoptosis pathway. Three different shRNAs (Bcl-2-sh1, 2 and 3) were designed according to the human Bcl-2 mRNA target sequence and were transformed into competent DH5alpha Escherichia coli cells following the construction of an expression vector, which was then transfected into SW982 cells. SW982 cells were grouped into a control group (transfected with a negative control shRNA), and Bcl-2-sh1, Bcl-2-sh2 and Bcl-2 sh3 groups (transfected with Bcl-2-sh1, 2 and 3, respectively). The expression levels of Bcl-2 mRNA were detected using reverse transcription-quantitative PCR (RT-qPCR). Bcl-2-sh1 was identified as the most effective shRNA sequence for interference, and was used for subsequent experiments. The mRNA and protein expression levels of Bcl-2, Bax, CytC and Caspase-3 were detected in SW982 cells by RT-qPCR and western blotting at various time-points (48 and 72 h) following transfection with Bcl-2-sh1, in order to observe the effectiveness of this interference. Compared with the control group, the expression levels of Bcl-2 were decreased, while those of Bax, CytC and Caspase-3 were increased in Bcl-2 sh1-transfected cells (P<0.01). The interference effect was greater at 48 h than at 72 h. In summary, an effective shRNA sequence (Bcl-2-sh1) targeting the Bcl-2 gene was identified from three candidates, and was demonstrated to significantly interfere with the expression of Bcl-2, Bax, CytC and Caspase-3 when transfected into SW982 cells. The interference effect of Bcl-2-sh1 was more pronounced at 48 h than at 72 h post-transfection. PMID- 29039458 TI - DNA polymerase 5 acetylation by Eso1 is essential for Schizosaccharomyces pombe viability. AB - Eco1/Eso1 protein plays an important role in chromosome segregation, DNA repair and gene regulation. Eco1 mutation induces Roberts syndrome clinically and rDNA transcription disorders in vivo. In this study, we examined the role of Eso1 protein binding to polymerase 5 (Pol5) and the acetylation of Pol5 protein in the regulation of Schizosaccharomyces pombe (S. pombe) viability. Immunoprecipitation and mass spectrometry assays identified Eso1 protein binding to Cdc2, Pol5 and Cdc21, as well as other proteins. Pol5 protein specifically bound to Eso1 protein, but not to the Rad30 part or Rad30 part plus the additional zinc finger domain of Eco1 protein. Mass spectrometry data further identified several acetylation or trimethylation modification sites in the lysine residues of the Pol5 protein. However, the mutation of the Pol5 K47 site to arginine was lethal to S. pombe. Eso1 protein was able to acetylate Pol5 protein and mediate S. pombe viability. On the whole, our data indicate that the Eso1 interaction with Pol5 which acetylates Pol5 protein is essential for S. pombe viability. PMID- 29039457 TI - High-throughput sequencing reveals novel lincRNA in age-related cataract. AB - Age-related cataract (ARC) is a major cause of blindness. Long non-coding RNAs (lncRNAs) are a heterogeneous class of RNAs that are non-protein-coding transcripts >200 nucleotides in length. LncRNAs are involved in various critical biological processes, such as chromatin remodeling, gene transcription, and protein transport and trafficking. Furthermore, the dysregulation of lncRNAs causes a number of complex human diseases, including coronary artery diseases, autoimmune diseases, neurological disorders and various cancers. However, the role of lncRNA in cataract remains unclear. Therefore, in the present study, lens anterior capsular membrane was collected from normal subjects and patients with ARC and total RNA was extracted. High-throughput sequencing was applied to detect differentially expressed lncRNAs and mRNAs. The analysis identified a total of 42,556 candidate differentially expressed mRNAs (27,447 +15,109) and a total of 7,041 candidate differentially expressed lncRNAs (4,146 + 2,895). Through bioinformatics analysis, the significant differential expression of novel lincRNA was observed and its possible molecular mechanism was explored. Reverse transcription-quantitative polymerase chain reaction was used to validate the different expression levels of selected lncRNAs. These findings may lead to the development of novel strategies for genetic diagnosis and gene therapy. PMID- 29039459 TI - BC-02 eradicates liver cancer stem cells by upregulating the ROS-dependent DNA damage. AB - Cancer stem cells (CSCs) are responsible for chemoresistance, tumor recurrence and metastasis. Reportedly, aminopeptidase N (APN, also known as CD13) is a marker for semi-quiescent CSCs and a therapeutic target in human liver CSCs. In the present study, the effect of BC-02, a compound obtained by conjugating a CD13 inhibitor bestatin and fluorouracil (5-FU), was investigated toward liver CSCs. Tumor spheres formed in serum-free culture conditions have been successfully used to enrich CSCs. In this study, the sphere cells were shown to have several characteristics of CSCs, including drug resistance, high tumorigenicity, epithelial-mesenchymal transition (EMT) phenotype, lower reactive oxygen species (ROS) levels, greater colony-forming efficiency and increased proliferation capacity in vitro. Furthermore, BC-02 effectively suppressed self-renewal and malignant proliferation of CSCs compared with 5-FU, bestatin, and even the combination of 5-FU and bestatin. In addition, cell proliferation was effectively suppressed when exposed to 5-FU plus CD13-neutralizing antibody (CD13 Ab) compared with 5-FU alone. BC-02 can effectively inhibit the activity of CD13. Results demonstrated that CD13 inhibitor BC-02 impaired the properties of liver CSCs by targeting CD13 and upregulating the intracellular ROS and ROS-induced DNA damage. BC-02 might be a potential therapeutic agent for eradicating the liver CSCs and overcoming chemoresistance in liver cancer. PMID- 29039460 TI - Characterization of tree shrew (Tupaia belangeri) interleukin-6 and its expression pattern in response to exogenous challenge. AB - Tree shrews, one of the closest relatives of primates, have attracted increasing attention as a model of human diseases, particularly for viral infections. As the first line of defense against microbial pathogens, the innate immune system is crucial in tree shrews. Interleukin-6 (IL-6) is important in the pathophysiology of infection, inflammation and cancer, where it promotes disease development or sustains immune reactions. The present study aimed to obtain further insight into the tree shrew IL-6 (tsIL-6) system, and the function of tsIL-6 in the antiviral and antibacterial response. In the present study, the mRNA and genomic sequence of the tsIL-6 gene were characterized, and the tissue distribution and expression profile of this gene were analyzed in response to lipopolysaccharide (LPS) and polyinosinic:polycytidylic acid (poly I:C) treatment. The full-length tsIL-6 mRNA consisted of 1,152 bp with an open reading frame of 627 bp encoding 208 amino acids, a 5'-untranslated region (UTR) of 62 bp, and a 3'-UTR of 436 bp. The genome sequence of the tsIL-6 gene was 5,265 bp in length, comprising of five exons and four introns. The predicted tsIL-6 protein contained a 25-amino-acid long signal peptide and a conserved IL-6 domain. Phylogenetic analysis based on the coding sequences revealed that tsIL-6 was closely related to IL-6 in humans. Residues crucial for receptor binding were completely conserved in the tree shrew protein. Reverse transcription-polymerase chain reaction analysis revealed that tsIL-6 mRNA was expressed in all examined tissues of healthy tree shrews, with high levels in the muscle and spleen. Following poly I:C challenge, the expression levels of tsIL-6 were upregulated in four tissues associated with immune system, the liver, spleen, kidney and intestine. Taken together, the molecular and bioinformatics analyses based on the IL-6 sequence revealed that the tree shrew has a close phylogenetic association with humans. These results provide insight for future investigations on the structure and function of tsIL 6. PMID- 29039462 TI - Antiproliferative activity of di-2-pyridylhydrazone dithiocarbamate acetate partly involved in p53 mediated apoptosis and autophagy. AB - Cancer cells have higher demand of iron and copper ions for growth, disturbing the metal's homeostasis can inhibit proliferation of cancer cell. Dithiocarbamates possessing excellent metal chelating ability and antitumor activity are considered as candidates in chelation therapy, however, their antitumor molecular mechanisms remain to be elucidated. In the present study, a dithiocarbamate derivative, di-2-pyridylhydrazone dithiocarbamate s-acetic acid (DpdtaA) was prepared to address the issue whether the molecular mechanism behind biological behavior showed by dithiocarbamate was p53 mediated. The proliferation inhibition assay showed that DpdtaA exhibited excellent antiproliferative effect for hepatocellular carcinoma (IC50= 3.0+/-0.4 uM for HepG2, 6.1+/-0.6 uM for Bel 7402 cell). However, in the presence of copper ion, the antiproliferative activity of DpdtaA significantly attenuated (~3-fold for HepG2) due to formation of copper chelate. The ROS assay revealed that the antiproliferative activity of DpdtaA correlated with ROS generation. Western blotting demonstrated that DpdtaA could upregulate p53 via down-regulating the Mdm2, accordingly leading to changes of bcl family proteins, indicating that a p53-dependent intrinsic apoptosis was partly involved. Simulation from molecular docking hinted that DpdtaA could disrupt interaction between p53 and Mdm2, indicating the disruption might also contribute to the upregulation of p53. The alternations in lysosome membrane permeability and acidic vacuoles as well as LC3-II upregulation indicated that autophagy was involved. The copper addition led to significantly attenuate biological activity of DpdtaA, with few dithiocarbamates, but the mechanism in apoptosis induction was not altered except for weaker ability. PMID- 29039461 TI - Effects of ursolic and oleanolic on SK-MEL-2 melanoma cells: In vitro and in vivo assays. AB - Among the triterpenoids, oleanolic acid (OA) and its isomer, ursolic acid (UA) are promising therapeutic candidates, with potential benefits in the management of melanoma. In this study, we aimed to examine the in vitro and in vivo anti invasive and anti-metastatic activity of OA and UA to determine their possible usefulness as chemopreventive or chemotherapeutic agents in melanoma. For the in vitro experiments, the anti-proliferative activity of the triterpenic compounds on SK-MEL-2 melanoma cells was examined. The anti-invasive potential was assessed by testing the effects of the active compound on vascular cell adhesion molecule (VCAM) and intercellular adhesion molecule (ICAM) adhesion to melanoma cells. Normal and tumor angiogenesis were evaluated in vivo by chicken embryo chorioallantoic membrane (CAM) assay. The two test triterpenoid acids, UA and OA, exerted differential effects in vitro and in vivo on the SK-MEL-2 melanoma cells. UA exerted a significant and dose-dependent anti-proliferative effect in vitro, compared to OA. The cytotoxic effects in vitro on the melanoma cells were determined by the examining alterations in the cell cycle phases induced by UA that lead to cell arrest in the S phase. Moreover, UA was found to affect SK-MEL 2 melanoma cell invasiveness by limiting the cell adhesion capacity to ICAM molecules, but not influencing their adhesion to VCAM molecules. On the whole, in this study, by assessing the effects of the two triterpenoids in vivo, our results revealed that OA had a greater potential to impair the invasive capacity and tumor angiogenesis compared with UA. PMID- 29039463 TI - Hepatic differentiation of human iPSCs in different 3D models: A comparative study. AB - Human induced pluripotent stem cells (hiPSCs) are a promising source from which to derive distinct somatic cell types for in vitro or clinical use. Existent protocols for hepatic differentiation of hiPSCs are primarily based on 2D cultivation of the cells. In the present study, the authors investigated the generation of hiPSC-derived hepatocyte-like cells using two different 3D culture systems: A 3D scaffold-free microspheroid culture system and a 3D hollow-fiber perfusion bioreactor. The differentiation outcome in these 3D systems was compared with that in conventional 2D cultures, using primary human hepatocytes as a control. The evaluation was made based on specific mRNA expression, protein secretion, antigen expression and metabolic activity. The expression of alpha fetoprotein was lower, while cytochrome P450 1A2 or 3A4 activities were higher in the 3D culture systems as compared with the 2D differentiation system. Cells differentiated in the 3D bioreactor showed an increased expression of albumin and hepatocyte nuclear factor 4alpha, as well as secretion of alpha-1-antitrypsin as compared with the 2D differentiation system, suggesting a higher degree of maturation. In contrast, the 3D scaffold-free microspheroid culture provides an easy and robust method to generate spheroids of a defined size for screening applications, while the bioreactor culture model provides an instrument for complex investigations under physiological-like conditions. In conclusion, the present study introduces two 3D culture systems for stem cell derived hepatic differentiation each demonstrating advantages for individual applications as well as benefits in comparison with 2D cultures. PMID- 29039464 TI - Hypothermia inhibits the proliferation of bone marrow-derived mesenchymal stem cells and increases tolerance to hypoxia by enhancing SUMOylation. AB - Hypothermia therapy has a positive effect on patients with severe brain injury. Recent studies have shown that mild hypothermia increases the survival of bone marrow-derived mesenchymal stem cells (BMSCs) in a hypoxic environment; however, the underlying mechanisms are not yet fully understood. Small ubiquitin-like modifiers (SUMOs) are sensitive to temperature stress reactions and are considered to exert a protective effect. In this study, we examined the protective effects of hypothermia on BMSCs in terms of SUMO protein modification. First, we found that mild hypothermia inhibited the proliferation and differentiation of BMSCs and increased cell tolerance to a hypoxic environment. Second, hypothermia significantly increased the levels of SUMO modification of multiple proteins in BMSCs. The knockdown of SUMO1/2/3 induced the rapid aging of the BMSCs, while the inhibition of the SUMO-conjugating enzyme, Ubc9, reduced cell proliferation and increased the proportion of BMSCs differentiating into nerve cells. Moreover, the tolerance of BMSCs to the hypoxic environment was significantly decreased. Lastly, we investigated 4 reported SUMO target proteins, anti-proliferating cell nuclear antigen, octamer-binding transcription factor 4, p53 and hypoxia-inducible factor-1alpha, to confirm that SUMO modification was indeed involved in maintaining the proliferation, inhibiting differentiation and enhancing the resistance of BMSCs against adverse conditions. Taken together, our results indicate that the SUMO pathway is involved in the response to hypothermic stress, and that SUMOylation may be an important protective mechanism against hypothermia for the survival of BMSCs under unfavorable conditions. PMID- 29039465 TI - Essential role of microRNA-650 in the regulation of B-cell CLL/lymphoma 11B gene expression following transplantation: A novel mechanism behind the acute rejection of renal allografts. AB - Kidney transplantation is an effective final therapeutic procedure for patients with end-stage kidney failure. Although advanced immunosuppressive therapy is administered following transplantation, certain patients still suffer from acute allograft rejection. MicroRNAs (miRs) have a potential diagnostic and therapeutic value for acute renal allograft rejection; however, their underlying mechanism of action is largely unknown. In the present study, an increased level of miR-650 was identified to be associated with the downregulation of B-cell CLL/lymphoma 11B (BCL11B) expression in acute renal allograft rejection. Furthermore, in vitro study using human renal glomerular endothelial cells (HRGECs) transfected with a miR-650 mimic revealed that key characteristics of acute renal allograft rejection were observed, including apoptosis, the release of cytokines and the chemotaxis of macrophages, while the effects were reduced in HRGECs transfected with a miR-650 inhibitor. The existence of a conserved miR-650 binding site on the 3'-untranslated region of BCL11B mRNA was predicted by computational algorithms and confirmed by a luciferase reporter assay. Knockdown of BCL11B with small interfering RNA (siRNA) significantly increased the apoptotic rate and significantly decreased the proliferation ability of HRGECs compared with the negative control group. HRGECs transfected with a combination of BCL11B siRNA and the miR-650 mimic demonstrated a significant increase in the rate of apoptosis compared with the control. These results suggest that the upregulation of miR-650 contributes to the development of acute renal allograft rejection by suppression of BCL11B, which leads to apoptosis and inflammatory responses. Thus, miR-650 and BCL11B may represent potential therapeutic targets for the prevention of acute renal allograft rejection. PMID- 29039466 TI - RACK1 silencing attenuates renal fibrosis by inhibiting TGF-beta signaling. AB - The receptor for activated C-kinase 1 (RACK1) is a member of the WD40-repeat family of proteins and has been reported to be implicated in the development of liver fibrosis. However, the role of RACK1 in renal fibrosis remains unclear. Therefore, in this study, we investigated the effects of RACK1 on transforming growth factor-beta1 (TGF-beta1)-treated human proximal tubular epithelial cells and aimed to elucidate the possible mechanisms responsible for its anti-fibrotic effects. Our results revealed that RACK1 was highly expressed in the renal fibrotic tissues and TGF-beta1-treated HK-2 cells. RACK1 silencing inhibited TGF beta1-induced alpha-smooth muscle actin and connective tissue growth factor expression in the HK-2 cells. Furthermore, RACK1 silencing inhibited the expression of phosphorylated Smad3 in the TGF-beta1-treated HK-2 cells. To the best of our knowledge, these data demonstrate for the first time the role of RACK1 in renal fibrosis. The present findings indicate that RACK1 silencing attenuates renal fibrosis by suppressing the activation of TGF-beta1/Smad3 signaling pathway in HK-2 cells. Thus, RACK1 may serve as a novel regulator of renal fibrosis. PMID- 29039467 TI - Insulin-like growth factor binding protein-6 released from human mesenchymal stem cells confers neuronal protection through IGF-1R-mediated signaling. AB - Human bone marrow-derived mesenchymal stem cells (hMSCs) are a desirable cell source for cell-based therapy to treat nervous system injuries due to their ability to differentiate into specific cell types. In addition to their multipotency, hMSCs render the tissue microenvironment more favorable for tissue repair by secreting various growth factors. Our previous study demonstrated that hMSCs secrete several growth factors, including several insulin-like growth factor binding proteins (IGFBPs). Among these, IGFBP-6 binds with high affinity and inhibits insulin growth factor-2 (IGF-2) to inhibit the growth of IGF-2 dependent tumors. However, the function of IGFBP-6 in the nervous system remains to be fully elucidated. The present study investigated the protective effects of IGFBP-6 secreted by hMSCs on H2O2-injured primary cortical neuron cultures and lysolecithin-injured organotypic spinal cord slice cultures. Treatment of the H2O2-injured cortical neurons with conditioned media from hMSCs (hMSC-CM) increased the phosphorylation of Akt, reduced cell death and mitochondrial translocation of Bax, and regulated extracellular levels of IGF-1 and IGF-2. MTT assay, western blot analysis and ELISA were used to detect the cell viability and protein expression levels, respectively. An inhibitory antibody against IGFBP-6 eliminated this hMSC-CM-mediated neuroprotective effect in the injured cortical neuron cultures and spinal cord slice cultures. In addition, treatment with cyclolignan picropodophyllin, an inhibitor of IGF-1 receptor (IGF-1R), significantly inhibited neuronal protection by hMSC-CM. These findings demonstrated that hMSC-CM-mediated neuroprotection was attributed to IGF-1R mediated signaling, potentiated via the inhibition of IGF-2 by IGFBP-6. The results of the present study provide insight into the mechanism by which hMSC administration may promote recovery from nerve injury. PMID- 29039468 TI - Limited activation of the intrinsic apoptotic pathway plays a main role in amyloid-beta-induced apoptosis without eliciting the activation of the extrinsic apoptotic pathway. AB - Amyloid-beta (Abeta), a main pathogenic factor of Alzheimer's disease (AD), induces apoptosis accompanied by caspase activation. However, limited caspase activation and the suppression of the intrinsic apoptotic pathway (IAPW) are frequently observed upon Abeta treatment. In this study, we investigated whether these suppressive effects of Abeta can be overcome; we also examined the death related pathways. Single treatments of cells with Abeta42 for up to 48 h barely induced caspase activation. In cells treated with Abeta42 twice for 2 h followed by 22 h (2+22 h) or for longer durations, the apoptotic protease activating factor-1 (Apaf-1) apoptosome was formed and caspases-3 and -9 were activated to a certain extent, suggesting the activation of the IAPW. However, the Abeta42 induced activation of the IAPW differed from that induced by treatment with other agents, such as staurosporine (STS) in that lower amounts of cytochrome c were released from the mitochondria, the majority of procaspase-9 in the Apaf-1 complex was not processed and caspase-3 was activated to a lesser extent in the peptide-treated cells. Thus, it seemed that the IAPW was not fully activated by Abeta42. The 30- and 41/43-kDa fragments derived from procaspase-8 were detected, which appear to be produced through the IAPW without death-inducing signaling complex (DISC) formation, a key feature of the extrinsic apoptotic pathway (EAPW). Bid cleavage was observed only after caspase-3 activity reached its maximal levels, suggesting that the cleavage may contribute in a limited capacity to the amplification process of the IAPW in the Abeta-treated cells. Taken together, our data suggest that the IAPW, albeit functional only to a limited extent, plays a major role in Abeta42-induced apoptosis without the EAPW. PMID- 29039469 TI - The association of LMP7 and TAP2 gene polymorphisms with treatment response to interferon/ribavirin in patients with genotype 1 chronic hepatitis C. AB - Previous studies have highlighted the important role of genes related to antigen presentation in the spontaneous clearance of hepatitis C virus. The present study aimed to explore the association between TAP, LMP and tapasin gene polymorphism and treatment response in chronic hepatitis C virus (CHC) patients. Six single nucleotide polymorphisms in TAP, LMP and tapasin genes were genotyped among 352 Chinese genotype 1 CHC patients with pegylated interferon-alpha and ribavirin (pegIFN-alpha/RBV) treatment. There were 232 cases achieving sustained virological response (SVR), which yielded an SVR rate of 65.9%. LMP7 rs2071543 variant genotypes [additive model: odds ratio (OR), 0.52; 95% confidence interval (CI), 0.33-0.82; P=0.005] and TAP2 rs1800454 variant genotypes (additive model: OR, 0.66; 95% CI, 0.45-0.98; P=0.039) were suggested to decrease the possibility of achieving an SVR. After conducting combined effect analysis of rs2071543 and rs1800454, the authors found that the SVR rate was lower among patients carrying more unfavorable rs1800454-A and rs2071543-A alleles, and the SVR rate of carrying 3-4 alleles was 20%. In addition, carrying two unfavorable alleles led to significantly decreased possibility for SVR (OR, 0.30; 95% CI, 0.14-0.61; P=0.001). Multivariate stepwise analysis indicated that rs2071543, rs1800454, glucose, alpha-fetoprotein, platelets and baseline viral load were risk factors of SVR that were independent of each other. The area under the curve (AUC) consisting of all the above factors produced an AUC of 0.704 (95% CI, 0.647 0.761; P<0.001). The line charts indicated that the drop in viral load was significantly faster in GG patients than in GC/CC patients during the whole therapy, which was in accordance with the decline of viral load in rs2071543. The present study illustrated that the carriage of LMP7 rs2071543-AA and TAP2 rs1800454-AA had a negative effect on treatment response to pegIFN-alpha/RBV among genotype 1 patient with CHC in a Chinese Han population. PMID- 29039470 TI - Effects of baicalein on proliferation, apoptosis, migration and invasion of Ewing's sarcoma cells. AB - Ewing's sarcoma (ES) is a rare tumor that is more frequent in pediatric and adolescent age groups. In the past few decades, long-term survival in affected patients has improved due to the success of multimodal therapy. However, long term survival is inevitably restricted by the late side-effects of chemotherapy. Besides, early metastasis also contributes to the poor prognosis of ES. Recently, traditional Chinese medicines (TCMs) have increasingly attracted interest due to the promising clinical results and fewer side-effects for the treatment of cancers. Among the various TCMs, the root of Scutellaria baicalensis exerts anti inflammatory properties as a well-known herb in traditional Chinese medicine. Baicalein (5,6,7-trihydroxyflavone) derived from the root of Scutellaria baicalensis is a bioactive compound, which possesses a powerful pro-apoptotic activity in various cancers such as hepatocellular carcinoma and myeloma. However, the effects of baicalein on ES cells remain still unknown. We anticipated that baicalein also has apoptotic activity in ES. The aim of the present study was to investigate the effects of baicalein on viability, apoptosis, migration and invasion of ES cells, and further to elaborate the molecular mechanism of baicalein-induced ES cell apoptosis. We found that baicalein markedly inhibited ES cells viability in a time- and dose-dependent manner, especially SK-ES-1 cells and could promote the apoptosis of ES cells. Additionally, baicalein was capable of upregulating the expression of the pro apoptotic proteins Bax and cytochrome c, reducing the expression of the anti apoptotic protein Bcl-2, elevating the ratio of Bax/Bcl-2, and triggering the mitochondrial apoptotic pathway, which led to caspase-3 and caspase-9 activation and PARP cleavage. Meanwhile, the activation of caspase-8 and the death receptor pathway was also observed. Besides, baicalein could reduce ES migration and invasion in vitro, which showed its potential to inhibit ES metastasis, besides contributing to the decrease in the expression of matrix metalloproteinases (MMP) 2 and MMP-9. In conclusion, baicalein has a potent tumor-suppressor activity by inducing cell apoptosis through the mitochondrial apoptotic pathway and the death receptor pathway in ES cells, thus it may serve as a novel and effective candidate agent for ES treatment. PMID- 29039471 TI - Hydrogen sulfide alleviates myocardial fibrosis in mice with alcoholic cardiomyopathy by downregulating autophagy. AB - Myocardial fibrosis is one of the most important pathological features of alcoholic cardiomyopathy (ACM). Hydrogen sulfide (H2S) exerts protective effects in various types of cardiovascular disease, which has been demonstrated by many previous studies. However, there is a lack of adequate research on the effect of H2S on myocardial fibrosis in ACM. The present study aimed to investigate the etiopathogenic role of H2S in myocardial fibrosis induced by chronic alcohol intake. An ACM mouse model was induced by consumption of 4% ethanol solution in drinking water for 12 weeks. Sodium hydrosulfide (NaHS) was used as a donor to provide exogenous H2S. Twelve weeks later, mice were sacrificed to calculate the heart to body weight ratio. The degree of myocardial collagen deposition was evaluated by Masson's and Van Gieson's staining, the expression level of collagen I was measured by immunohistochemistry and autophagosomes were observed by transmission electron microscopy. In addition, the expression levels of autophagy associated proteins and fibrosis-associated proteins were detected by western blotting, and the expression levels of miR-21 and miR-211 were detected by reverse transcription-quantitative polymerase chain reaction. The outcomes of the study revealed that chronic alcohol intake results in myocardial fibrosis, enhanced myocardial collagen deposition and increased expression levels of collagen I, autophagy, autophagy-associated proteins (Beclin 1, Atg3 and Atg7) and fibrosis-associated proteins (MMP8, MMP13, MMP14, MMP17 and TGF-beta1), as well as miR-21 and miR-221. These results were markedly reversed following treatment with H2S. The present study confirmed that H2S relieves myocardial fibrosis in mice with ACM, and the underlying mechanism may involve the downregulation of autophagy and miR-21 and miR-211 expression levels. PMID- 29039472 TI - E2F1 silencing inhibits migration and invasion of osteosarcoma cells via regulating DDR1 expression. AB - In the present study, knockdown of E2F1 impaired the migration and invasion of osteosarcoma cells. Further analysis showed that E2F1 knockdown decreased the expression of discoidin domain receptor 1 (DDR1) which plays a crucial role in many fundamental processes such as cell differentiation, adhesion, migration and invasion. Luciferase and ChIP assays confirmed that E2F1 silencing attenuated the expression of DDR1 through disrupting E2F1-mediated transcription of DDR1 in osteosarcoma cells. Similarly with the effect of E2F1 silencing, DDR1 knockdown weakened the migratory and invasive capabilities of osteosarcoma cells; while overexpression of DDR1 resulted in a significant increase of cell motility and invasiveness, even after knocking down E2F1. Interestingly, inactivation of E2F1/DDR1 pathway by shRNA weakened STAT3 signaling and subsequently suppressed the epithelial-mesenchymal transition (EMT) of osteosarcoma cells, as shown with decreased vimentin, MMP2, MMP9, and increased E-cadherin. Consistently, high expressions of E2F1 and DDR1 observed in osteosarcoma tissues were related to TNM stage and metastasis. In addition, high level of E2F1 or DDR1 was associated with poor prognosis in osteosarcoma patients. These results suggest that E2F1/DDR1/STAT3 pathway is critical for malignancy of osteosarcoma, which may provide a novel prognostic indicator or approach for osteosarcoma therapy. PMID- 29039473 TI - Altered expression profiles of circular RNA in colorectal cancer tissues from patients with lung metastasis. AB - The lung is the most common extra-abdominal site of metastasis in colorectal cancer (CRC), in which circular RNA (circRNA) may have a crucial role. Therefore, the present study detected circRNA expression to identify novel targets to further study lung metastasis in CRC. In the present study, total RNA was extracted from CRC tissues of patients with and without lung metastasis to perform high-throughput microarray assay in order to detect differentially expressed circRNA. Following this, gene ontology (GO) and pathway analyses of the genes producing differentially expressed circRNA were performed to predict the function of circRNA using standard enrichment computational methods. Additionally, the circRNA/microRNA (miRNA) interactions were constructed with bioinformatics methods to predict the binding of miRNA with circRNA. In the CRC tissues from patients with lung metastasis, 431 circRNA were detected to be differentially expressed, including 192 upregulated and 239 downregulated over 2 fold compared with the CRC tissues without metastasis. Furthermore, GO analysis revealed that the genes producing upregulated circRNA were involved in DNA repair, while the genes producing downregulated circRNA were enriched in signal transduction. By pathway analysis, it was identified that the genes producing downregulated circRNA were involved in the nuclear factor-kappaB and Wnt signaling pathway in the CRC tissues from patients with lung metastasis compared with the CRC tissues without metastasis. In addition, it was demonstrated that hsa_circRNA_105055, hsa_circRNA_086376 and hsa_circRNA_102761 could commonly bind with miR-7 regulating target genes PRKCB, EPHA3, BRCA1 and ABCC1. The findings of the present study may provide a novel perspective on circRNA and lay a foundation for future research of potential roles of circRNA in CRC with lung metastasis. PMID- 29039474 TI - Evaluation of a radiocobalt-labelled affibody molecule for imaging of human epidermal growth factor receptor 3 expression. AB - The human epidermal growth factor receptor 3 (HER3) is involved in the development of cancer resistance towards tyrosine kinase-targeted therapies. Several HER3-targeting therapeutics are currently under clinical evaluation. Non invasive imaging of HER3 expression could improve patient management. Affibody molecules are small engineered scaffold proteins demonstrating superior properties as targeting probes for molecular imaging compared with monoclonal antibodies. Feasibility of in vivo HER3 imaging using affibody molecules has been previously demonstrated. Preclinical studies have shown that the contrast when imaging using anti-HER3 affibody molecules can be improved over time. We aim to develop an agent for PET imaging of HER3 expression using the long-lived positron emitting radionuclide cobalt-55 (55Co) (T1/2=17.5 h). A long-lived cobalt isotope 57Co was used as a surrogate for 55Co in this study. The anti-HER3 affibody molecule HEHEHE-ZHER3-NOTA was labelled with radiocobalt with high yield, purity and stability. Biodistribution of 57Co-HEHEHE-ZHER3-NOTA was measured in mice bearing DU145 (prostate carcinoma) and LS174T (colorectal carcinoma) xenografts at 3 and 24 h post injection (p.i.). Tumour-to-blood ratios significantly increased between 3 and 24 h p.i. (p<0.05). At 24 h p.i., tumour-to-blood ratios were 6 for DU145 and 8 for LS174T xenografts, respectively. HER3-expressing xenografts were clearly visualized in a preclinical imaging setting already 3 h p.i., and contrast further improved at 24 h p.i. In conclusion, the radiocobalt labelled anti-HER3 affibody molecule, HEHEHE-ZHER3-NOTA, is a promising tracer for imaging of HER3 expression in tumours. PMID- 29039475 TI - Transcription factors Nrf2 and NF-kappaB contribute to inflammation and apoptosis induced by intestinal ischemia-reperfusion in mice. AB - Intestinal ischemia/reperfusion (IIR) is a common pathological event associated with intestinal injury and apoptosis with high mortality. Nuclear factor (NF)-E2 related factor-2 (Nrf2) is a key transcription factor that interacts with NF kappaB and has a vital anti-inflammatory effect. However, whether Nrf2 has a role in IIR-induced apoptosis and the possible underlining mechanisms, such as modulation of the inflammation regulation pathway, have remained to be fully elucidated. In the present study, IIR was identified to cause significant intestinal injury and apoptosis, with high expression levels of inflammatory cytokines, as well as the apoptotic proteins B-cell lymphoma 2 (Bcl-2)-associated X protein (Bax) and caspase-3, while simultaneously decreasing the protein levels of Bcl-2. The effect was more pronounced after pretreatment of the animals with all-trans retinoic acid or brusatol, potent inhibitors of Nrf2. t Butylhydroquinone, an Nrf2 activator, significantly attenuated IIR-induced intestinal injury and apoptosis, with inhibition of the overexpression of the inflammatory cytokines, Bax and caspase-3 protein and partial restoration of Bcl 2 protein expression. Taken together, these results indicated that increased Nrf2 expression reduced IIR-induced intestinal apoptosis and that the protective function of Nrf2 may be based on its anti-inflammatory effects through the inhibition of the NF-kappaB pathway. PMID- 29039476 TI - The FNR modules contribute to control nitric oxide synthase catalysis revealed by chimera enzymes. AB - The reductase domains of neuronal NOS, endothelial NOS and two constitutive nitric oxide synthase (cNOS) share higher sequence similarity (>60%). In order to evaluate the role of ferredoxin-NADP+ reductase (FNR) module in adjusting NOS catalytic activities, chimeras were by interchanging the FNR-like module between endothelial NOS and neuronal NOS in the present study. The assays of steady-state enzymatic activities for cytochrome c and ferricyanide reduction, NO synthesis and NADPH oxidation were performed spectrophotometrically. The two NOS FNR modules transferred their ferricyanide reductase character to the chimera enzymes. Results showed that the FNR module was important in adjusting electrons flow through the reductase domain and out of the FMN module. Results indicated that the FNR module was critical in controlling the electron transfer capacities of the FMN module. PMID- 29039477 TI - Comprehensive analysis of circRNA expression profiles in humans by RAISE. AB - Circular RNAs (circRNAs) are pervasively expressed circles of non-coding RNAs. Even though many circRNAs have been reported in humans, their expression patterns and functions remain poorly understood. In this study, we employed a pipeline named RAISE to detect circRNAs in RNA-seq data. RAISE can fully characterize circRNA structure and abundance. We evaluated inter-individual variations in circRNA expression in humans by applying this pipeline to numerous non-poly(A) selected RNA-seq data. We identified 59,128 circRNA candidates in 61 human liver samples, with almost no overlap in the circRNA of the recruited samples. Approximately 89% of the circRNAs were detected in one or two samples. In comparison, 10% of the linear mRNAs and non-coding RNAs were detected in each sample. We estimated the variation in other tissues, especially the circRNA high abundance tissues, in advance. Only 0.5% of the 50,631 brain circRNA candidates were shared among the 30 recruited brain samples, which is similar to the proportion in liver. Moreover, we found inter- and intra-individual diversity in circRNAs expression in the granulocyte RNA-seq data from seven individuals sampled 3 times at one-month intervals. Our findings suggest that careful consideration of inter-individual diversity is required when extensively identifying human circRNAs or proposing their use as potential biomarkers and therapeutic targets in disease. PMID- 29039478 TI - Phosphorylation of eIF2alpha suppresses cisplatin-induced p53 activation and apoptosis by attenuating oxidative stress via ATF4-mediated HO-1 expression in human renal proximal tubular cells. AB - Cisplatin is one of the most widely used chemotherapeutic agents for the treatment of human cancers. However, the nephrotoxicity of cisplatin limits its use as a therapeutic agent. It has been suggested that oxidative stress and p53 activation play important roles in cisplatin-induced nephrotoxicity. It has been demonstrated that the eukaryotic translation initiation factor 2alpha (eIF2alpha) may protect HK-2 human renal proximal tubular cells against cisplatin-induced apoptosis through inhibition of reactive oxygen species (ROS)-mediated p53 activation. The aim of the present study was to investigate the effects of siRNA mediated knockdown of the PKR-like endoplasmic reticulum kinase (PERK) gene, which induces the phosphorylation of eIF2alpha, or Sal003, a selective inhibitor of eIF2alpha dephosphorylation, on cisplatin-induced apoptosis in HK-2 cells. Cisplatin induced eIF2alpha phosphorylation as well as p53 activation. In particular, inhibition of p53 by pifithrin-alpha, and upregulation of eIF2alpha phosphorylation by Sal003, reduced cisplatin-induced apoptosis. Of note, Sal003 mediated upregulation of eIF2alpha phosphorylation suppressed cisplatin-induced p53 activation. Furthermore, reduction of eIF2alpha phosphorylation by PERK knockdown enhanced cisplatin-induced p53 activation and apoptosis. In addition, the ROS scavenger N-acetyl-L-cysteine inhibited eIF2alpha phosphorylation as well as p53 activation in HK-2 cells treated with cisplatin, suggesting that oxidative stress induced by cisplatin may lead to apoptosis through p53 activation; furthermore, this stress may confer resistance to apoptosis via eIF2alpha phosphorylation, which was further supported by the finding that cisplatin induced ROS generation was attenuated by Sal003, whereas it was enhanced by PERK knockdown. Furthermore, cisplatin induced the expression of activating transcription factor 4 (ATF4) and heme oxygenase-1 (HO-1) that were enhanced by Sal003 and reduced by PERK knockdown. Taken together, these results suggest that phosphorylation of eIF2alpha suppresses cisplatin-induced p53 activation and apoptosis by attenuating oxidative stress via ATF4-mediated HO-1 expression in HK 2 cells, as ATF4 expression is usually dependent on the phosphorylation of eIF2alpha and may also transcriptionally induce the expression of HO-1 in response to oxidative stress. Therefore, regulation of eIF2alpha phosphorylation may play an important role in alleviating cisplatin-induced nephrotoxicity. PMID- 29039479 TI - Mdig suppresses epithelial-mesenchymal transition and inhibits the invasion and metastasis of non-small cell lung cancer via regulating GSK-3beta/beta-catenin signaling. AB - Mineral dust-induced gene (mdig) can inhibit the invasion and metastasis of A549 cells. The main purpose of this study was to explore the molecular mechanism underlying the inhibitory effect of mdig on cell invasion and metastasis. Mdig knockdown and mdig-overexpressing A549 cells and an mdig-overexpressing human umbilical vein endothelial cell (HUVEC) line were constructed using lentiviral vectors, and western blot analysis was performed to verify the silencing and overexpression of the mdig protein. A Transwell invasion assay was used to detect the invasive abilities of each experimental group, and Transwell migration and scratch assays were used to detect cell migration ability. Western blotting was subsequently conducted to detect the major biochemical indices of the GSK 3beta/beta-catenin pathway and the protein expression levels and modifications of epithelial-mesenchymal transition (EMT) transcription factors, as well as changes in the expression levels of EMT molecular markers and intercellular adhesion proteins. The results indicated that overexpression of mdig in A549 cells inhibited cell invasion and metastasis, while silencing of mdig increased the invasive and metastatic properties of cells. The molecular mechanism underlying the effects of mdig downregulation on A549 cell invasion and metastasis was found to involve the inhibition of GSK-3beta phosphorylation, which in turn promoted the phosphorylation and destabilization of beta-catenin. This was associated with downregulation of the downstream transcription factors slug, snail and ZEB1, thus leading to increased expression levels of epithelial cell markers and upregulation of the intercellular adhesion molecules E-cadherin, claudin-1, ZO-1, integrin beta1 and integrin beta4, which was accompanied by downregulation of the mesenchymal cell markers vimentin and N-cadherin. The HUVECs were used to validate the aforementioned molecular mechanisms and the same conclusions were obtained. The present results indicate that mdig can inhibit the phosphorylation of GSK-3beta and promote the phosphorylation and destabilization of beta-catenin, in order to suppress the expression of slug, snail, and ZEB1 and the occurrence of EMT, and thereby inhibit the invasion and metastasis of non-small cell lung cancer (NSCLC). PMID- 29039480 TI - MicroRNA-20b promotes cell proliferation via targeting of TGF-beta receptor II and upregulates MYC expression in Ewing's sarcoma cells. AB - Transforming growth factor-beta receptor II (TGFBR2) is implicated in various types of cancer. Most molecules involved in the TGF-beta pathway can be degraded by one or more microRNAs (miRNAs). In the present study, we show that miRNA plays an important role in downregulating TGFBR2 expression in Ewing's sarcoma (ES) cells. Microarray-based analyses revealed that the expression of miR-20b was significantly increased, whereas TGFBR2 and MYC were significantly downregulated and upregulated, respectively, in all ES cells compared to their expression in human mesenchymal stem cells (hMSCs). In ES cell lines, anti-miR-20b increased TGFBR2 expression and significantly decreased MYC expression, showing an inverse relationship with TGFBR2. The induction by anti-miR-20b further prohibited ES cell growth and cell cycle progression. Moreover, decreased miR-20b in ES cells significantly inhibited tumor growth in vivo. Taken together, these results suggest that miR-20b behaves as an oncogene in ES when its overexpression is unregulated by targeting TGFBR2. Because downstream TGFBR2 and TGF-beta signaling regulate cell cycle, apoptosis, and tumor proliferation via MYC, our findings may contribute to new targeted therapies for ES. PMID- 29039481 TI - Administration of erythropoietin prevents bone loss in osteonecrosis of the femoral head in mice. AB - Long-term administration of glucocorticoid hormones is considered one of predominant pathological factors inducing osteonecrosis of the femoral head (ONFH) development and progression, in which reduction of blood supply leads to a progressive bone loss and impairment of bone structure in the majority of cases. In a non-hematopoietic system, erythropoietin (EPO) can stimulate angiogenesis and bone regeneration. However, the specific mechanism underlying the role of EPO in ONFH remains to be elucidated. Therefore, the purpose of this study was to determine the effect of EPO on the prevention of bone loss in ONFH. Male C57BL/6J mice 3 months old were divided into two groups: EPO group and control groups. ONFH was established by the administration prednisolone (PDS, 100 mg/kg) with co treatment of lipopolysaccharide (LPS, 1 mg/kg). ONFH mice received recombinant mouse EPO (500 U/kg/day) or saline intramuscularly. The mice were sacrificed at 2, 4, 6 and 8 weeks following the initiation of treatment. Alterations in the general architecture and histomorphology of the right femoral head were determined by hematoxylin and eosin staining and micro computed tomography (micro CT). The expression of runt-related transcription factor 2 (Runx2), osteocalcin, vascular endothelial growth factor (VEGF) and platelet endothelial cell adhesion molecule (CD31) in the femoral head was tested by immunohistochemistry. Terminal deoxynucleotidyl-transferase-mediated dUTP nick end labeling (TUNEL) assay was performed to detect apoptosis in femoral heads. Micro-CT data revealed that EPO significantly improved bone volume/total volume and bone mineral density following 6 and 8 weeks of treatment. Histological analysis further demonstrated that EPO treatment improved the arrangement of trabeculae, thinning of trabeculae and other fractures in femoral heads, especially following 6 and 8 weeks of treatment. Immunohistochemical analysis suggested that EPO treatment up-regulated the expressions of Runx2, osteocalcin, VEGF and CD31 at 4 and 8 weeks. The TUNEL apoptosis assay suggested that EPO intervention reduced apoptosis in avascular ONFH. Therefore, EPO prevents bone loss in ONFH in mice through enhancing Runx2 mediated osteogenesis, VEGF-mediated angiogenesis and inhibition of cell apoptosis. PMID- 29039482 TI - Protective effects of compounds from Garcinia mangostana L. (mangosteen) against UVB damage in HaCaT cells and hairless mice. AB - Ultraviolet B (UVB) radiation causes alterations in the skin, such as epidermal thickening, wrinkle formation and inflammation. Therefore, preventing UVB-induced skin damage can promote general health among the human population. Garcinia mangostana L. (mangosteen) is a fruit that has become a popular botanical dietary supplement because of its perceived role in promoting overall health. The present study investigated the photoprotective effects of alpha-, beta-, gamma-mangostins and gartanin against UVB radiation using the HaCaT immortalized human keratinocyte cell line as an in vitro model and hairless mice as an in vivo model. UVB radiation increased the expression of matrix metalloproteinase (MMP)-1 and -9 and decreased the mRNA expression levels of involucrin, filaggrin and loricrin in HaCaT cells; however, these changes were attenuated by pretreating the cells with alpha-, beta-, gamma-mangostins and gartanin. Among these compounds, alpha-mangostin exhibited the greatest effects in reducing UVB-induced skin wrinkles, inhibited epidermal thickening in hairless mice in vivo. Exposure to UVB radiation increased the expression of MMPs and pro-inflammatory cytokines and activated mitogen-activated protein kinases in hairless mice, but these changes were attenuated by alpha-mangostin. The authors suggested that alpha mangostin exerts anti-wrinkle and anti-aging properties. PMID- 29039483 TI - Dihydromyricetin protects against lipopolysaccharide-induced cardiomyocyte injury through the toll-like receptor-4/nuclear factor-kappaB pathway. AB - Dihydromyricetin (DHM) is a bioactive flavonoid compound extracted from the stems and leaves of Ampelopsis grossedentata. Previous studies have indicated that DHM has antioxidation and antitumor capabilities, while the effect of DHM on lipopolysaccharide (LPS)-induced cardiomyocyte injury has not been clarified. Therefore, the aim of the present study was to investigate the effect of DHM on LPS-induced cardiomyocyte injury. In the present study, cardiomyocytes were randomized to the control (PBS), LPS and DHM + LPS groups. The LPS group was treated with 10 ug/ml LPS for 12 h and the DHM + LPS group was treated with 100 or 25 uM DHM 12 h prior to treatment with LPS. The protective effect of DHM on LPS-induced cardiomyocytes injury was evaluated by Cell Counting kit-8 assay, TUNEL staining, reverse transcription-quantitative polymerase chain reaction and western blot analysis. The results demonstrated that LPS treatment led to cardiomyocyte apoptosis, and these effects were significantly attenuated by DHM. Furthermore, LPS treatment downregulated the expression of B-cell lymphoma 2 apoptosis regulator (Bcl-2) and induced increased expression of Bcl-2-associated X apoptosis regulator (Bax). Additionally, DHM treatment reversed LPS-induced changes in Bcl-2 expression and Bax expression in cardiomyocytes, and rescued cells from apoptosis. In addition, increased mRNA expression levels of tumor necrosis factor-alpha and interleukin-6 induced by LPS were attenuated following treatment with DHM. Further investigation demonstrated that DHM suppressed the activation of toll-like receptor-4 (TLR4), which is involved in regulating the downstream signaling pathway of nuclear factor-kappaB (NF-kappaB). DHM attenuated LPS-induced cardiomyocyte injury, the potential mechanism responsible for this effect may involve inhibition of TLR4 activation and subsequent regulation of the associated downstream signaling pathway of NF-kappaB. The current study indicates that DHM may protect cardiomyocytes against LPS-induced injury by inhibition of the TLR4/NF-kappaB signaling pathway. The results of the present study may provide support for the development DHM as a strategy for the treatment of heart failure in septic shock. PMID- 29039484 TI - miR-203 contributes to IL-17-induced VEGF secretion by targeting SOCS3 in keratinocytes. AB - Interleukin (IL)-17 signaling serves an important role in the development and pathogenesis of psoriasis; a chronic skin disease characterized by increased dermal vascularity and the hyperproliferation of keratinocytes. microRNA (miR) 203 is preferentially expressed in the skin and is an important regulator of keratinocyte differentiation. miR-203 has been implicated in a number of skin diseases, including psoriasis. However, the role of miR-203 in IL-17-induced vascular endothelial growth factor (VEGF) secretion has yet to be elucidated. The present study demonstrated that miR-203 expression was upregulated in the ears of IL-17-stimulated mice and IL-17-treated HaCaT cells. In addition, the IL-17 induced increase in miR-203 expression activated the Janus kinase/signal transducer and activator of transcription signaling pathway and promoted VEGF secretion in HaCaT cells. Furthermore, miR-203 was observed to bind to the 3' untranslated region of suppressor of cytokine signaling 3 (SOCS3) and inhibited SOCS3 expression. The results suggest that miR-203 expression may be upregulated by IL-17 stimulation, and miR-203 is a positive regulator of IL-17-induced VEGF secretion. The present study may support potential therapeutic strategies for the treatment of psoriasis. PMID- 29039485 TI - Calcium dobesilate may alleviate diabetes-induced endothelial dysfunction and inflammation. AB - Diabetic kidney disease (DKD) is a leading cause of end-stage renal disease. However, the pathogenesis of DKD remains unclear, and no effective treatments for the disease are available. Thus, there is an urgent need to elucidate the pathogenic mechanisms of DKD and to develop more effective therapies for this disease. Human umbilical vein endothelial cells (HUVECs) were cultured using different D-glucose concentrations to determine the effect of high glucose (HG) on the cells. Alternatively, HUVECs were incubated with 100 umol/l calcium dobesilate (CaD) to detect its effects. The authors subsequently measured HUVEC proliferation via cell counting kit-8 assays. In addition, HUVEC angiogenesis was investigated via migration assays and fluorescein isothiocyanate (FITC)-labelled bovine serum albumin (BSA) permeability assays. The content or distribution of markers of endothelial dysfunction [vascular endothelial growth factor (VEGF), VEGF receptor (R) and endocan) or inflammation [intercellular adhesion molecule (ICAM)-1, monocyte chemotactic protein (MCP)-1 and pentraxin-related protein (PTX3)] was evaluated via reverse transcription-quantitative polymerase chain reaction and western blotting. HG treatment induced increased in VEGF, VEGFR, endocan, ICAM-1, MCP-1 and PTX3 mRNA and protein expression in HUVECs. HG treatment for 24 to 48 h increased cell proliferation in a time-dependent manner, but the cell proliferation rate was decreased at 72 h of HG treatment. Conversely, CaD inhibited abnormal cell proliferation. HG treatment also significantly enhanced HVUEC migration compared to the control treatment. In contrast, CaD treatment partially inhibited HUVEC migration compared to HG exposure. HG-treated HUVECs exhibited increased FITC-BSA permeability compared to control cells cultured in medium alone; however, CaD application prevented the HG induced increase in FITC-BSA permeability and suppressed HG-induced overexpression of endothelial markers (VEGF, VEGFR-2, endocan) and inflammation markers (ICAM-1, MCP-1, PTX3) in HUVECs. CaD has angioprotective properties and protects endothelial cells partly by ameliorating HG-induced inflammation. The current results demonstrated the potential applicability of CaD to the treatment of diabetic nephropathy, particularly during the early stages of this disease. PMID- 29039487 TI - Functional analysis of HOXA10 and HOXB4 in human medulloblastoma cell lines. AB - Medulloblastoma (MB) is a malignant childhood brain tumor which at molecular level is classified into at least four major subtypes: WNT, SHH, group C and group D differing in response to treatment. Previous studies have associated changes in expression levels and activation of certain HOX genes with MB development. In the present study, we investigate the role of HOX genes in two attributes acquired by tumor cells: migration and proliferation potential, as well as, in vivo tumorigenic potential. We analyzed UW402, UW473, DAOY and ONS-76 human pediatric MB cell lines and cerebellum primary cultures. Two-color microarray-based gene expression analysis was used to identify differentially expressed HOX genes. Among the various HOX genes significantly overexpressed in DAOY and ONS-76 cell lines compared to UW402 and UW473 cell lines, HOXA10 and HOXB4 were selected for further analysis. The expression levels of these HOX genes were validated by real-time PCR. A mouse model was used to study the effect of the HOXA10 and HOXB4 genes on the in vivo tumorigenic potential and the in vitro proliferative and migration potential of MB cell lines. Our results show that the inhibition of HOXA10 in DAOY cell line led to increased in vitro cell migration while in vitro cell proliferation or in vivo tumorigenic potential were unaffected. We also observed that induced expression of HOXB4 in the UW473 cell line significantly reduced in vitro cell proliferation and migration capability of UW473 cells with no effect on the in vivo tumorigenicity. This suggests that HOXA10 plays a role in migration events and the HOXB4 gene is involved in proliferation and migration processes of medulloblastoma cells, however, it appears that these genes are not essential for the tumorigenic process of these cells. PMID- 29039486 TI - Analysis of miRNA expression profiling in human umbilical vein endothelial cells affected by heat stress. AB - To investigate the regulation of endothelial cell (EC) microRNAs (miRNAs) altered by heat stress, miRNA microarrays and bioinformatics methods were used to determine changes in miRNA profiles and the pathophysiological characteristics of differentially expressed miRNAs. A total of 31 differentially expressed miRNAs were identified, including 20 downregulated and 11 upregulated miRNAs. Gene Ontology (GO) enrichment analysis revealed that the validated targets of the differentially expressed miRNAs were significantly enriched in gene transcription regulation. The pathways were also significantly enriched in the Kyoto Encyclopedia of Genes and Genomes analysis, and most were cancer-related, including the mitogen-activated protein kinase signaling pathway, pathways involved in cancer, the Wnt signaling pathway, the Hippo signaling pathway, proteoglycans involved in cancer and axon guidance. The miRNA-gene and miRNA-GO network analyses revealed several hub miRNAs, genes and functions. Notably, miR 3613-3p played a dominant role in both networks. MAP3K2, MGAT4A, TGFBR1, UBE2R2 and SMAD4 were most likely to be controlled by the altered miRNAs in the miRNA gene network. The miRNA-GO network analysis revealed significantly complicated associations between miRNAs and different functions, and that the significantly enriched functions targeted by the differentially expressed miRNAs were mostly involved in regulating gene transcription. The present study demonstrated that miRNAs are involved in the pathophysiology of heat-treated ECs. Understanding the functions of miRNAs may provide novel insights into the molecular mechanisms underlying the heat-induced pathophysiology of ECs. PMID- 29039488 TI - MicroRNA-454 inhibits tumor cell proliferation, migration and invasion by downregulating zinc finger E-box-binding homeobox 1 in gastric cancer. AB - Gastric cancer is the fourth most common malignancy and the third leading cause of cancer-associated mortality globally. Accumulating studies have identified the involvement of microRNAs in the initiation and progression of gastric cancer. This study was aimed to investigate the expression, functional roles of microRNA 454 (miR-454) and its direct target gene in gastric cancer. According to the results, the expression level of miR-454 was demonstrated to be reduced in gastric cancer tissues and cell lines compared with corresponding distant non tumor gastric tissues and human immortalized gastric epithelial, respectively. miR-454 mimic transfection led to inhibition of gastric cancer cells proliferation, migration and invasion in vitro. Bioinformatic analysis predicated that zinc finger E-box-binding homeobox 1 (ZEB1) is a potential target gene of miR-454. Luciferase reporter assays revealed that miR-454 directly targeted the 3'UTR of ZEB1. miR-454 overexpression significantly decreased the ZEB1 mRNA and protein expression levels. ZEB1 knockdown could mimic the tumor suppressive roles induced by miR-454 overexpression on gastric cancer cell proliferation, migration and invasion. In conclusion, the present study suggested that miR-454 under expression may be involved in gastric cancer initiation and progression, by promoting proliferation, migration and invasion by directly targeting ZEB1. miR 454/ZEB1-based targeted therapy may be a potential strategy for the treatment of gastric cancer. PMID- 29039489 TI - ID1 contributes to cell growth invasion and migration in salivary adenoid cystic carcinoma. AB - Previous studies have reported that inhibitor of DNA binding 1 (ID1) exerts an oncogenic role in a number of tumors. In the present study, the role of ID1 in the growth, invasion and migration of salivary adenoid cystic carcinoma (SACC) cells was investigated. ID1 expression in clinical SACC samples was compared with that in normal salivary tissues using immunohistochemical staining, and the correlation between ID1 expression and clinical pathological characteristics was then determined. Subsequently, ID1 was overexpressed or silenced to investigate the effects of ID1 expression on SACC cell proliferation, invasion and migration. In addition, the gene expression levels of known ID1 target genes, including S100A9, CDKN2A and matrix metalloproteinase 1 (MMP1) was measured using reverse transcription-quantitative polymerase chain reaction to elucidate the potential mechanisms of ID1 in SACC. The results of the present study indicated that the protein expression levels of ID1 were significantly increased in the SACC tissues compared with that in the normal salivary tissues (P<0.001), and a positive correlation between ID1 expression and tumor stage (P=0.001), tumor invasion (P=0.002) and metastasis (P=0.019) in SACC was observed. Knockdown of ID1 in SACC cells significantly inhibited cell growth, invasion and migration (all P<0.01), whereas overexpression of ID1 promoted cell proliferation, invasion and migration (all P<0.01). The gene expression level of MMP1 was significantly reduced following ID1 knockdown in SACC-83 cells when compared with negative controls (P<0.05), whereas S100A9 and CDKN2A expression levels were significantly upregulated (both P<0.05). The results suggest that ID1 may regulate the growth, invasion and migration of SACC cells, and that MMP1, S100A9 and CDKN2A may serve as target genes of ID1 and mediate the effects of ID1 in SACC cells. Therefore, ID1 may present a potential target gene for the treatment of patients with SACC to inhibit cancer cell growth and metastasis. PMID- 29039490 TI - IL-8 promotes proliferation and inhibition of apoptosis via STAT3/AKT/NF-kappaB pathway in prostate cancer. AB - Interleukin-8 (IL-8) possesses tumorigenic and proangiogenic properties, and is overexpressed in many human cancer types. However, only few studies have demonstrated the mechanisms of action of IL-8 regarding the ability to promote proliferation and to inhibit apoptosis in prostate cancer. Here, the aim of the present study was to investigate the effects of IL-8 on the prostate cancer cell line and determine possible mechanisms underlying its effect. In this study, IL-8 was shown to be significantly upregulated in prostate cancer compared with paired normal control tissues. The data showed that IL-8 exhibits direct oncogenicity, which significantly induced cell proliferation, invasion and attenuated apoptosis in prostate cancer cells via signal transducer and activator of transcription 3/protein kinase B/nuclear factor-kappaB signaling pathways. In conclusion, modulation of IL-8 expression or its associated signaling pathway may provide a novel working mechanism of IL-8 in prostate cancer, and a promising strategy for controlling the progression and metastasis of prostate cancer. PMID- 29039491 TI - Non-canonical Hedgehog signaling activation in ovarian borderline tumors and ovarian carcinomas. AB - Hedgehog signaling pathway has been implicated in the pathology of ovarian cancer, and Survivin (BIRC5) has been suggested as a novel target of this pathway. Herein we investigated the role of Hedgehog signaling pathway and Survivin in ovarian carcinoma and borderline tumor samples. We aimed to determine possible ways of pathway modulation on primary ovarian cancer cells and an established cell line. RNA was extracted from fresh tumors and control tissues and gene expression was examined using qRT-PCR. Pathway activity in cell lines was examined after treatment with cyclopamine, SHH protein, GANT-61 or lithium chloride using qRT-PCR, western blot and confocal microscopy. The difference between control tissue, borderline tumors and carcinomas can be seen in GLI1 and SUFU gene expression, which is significantly higher in borderline tumors compared to carcinomas. SUFU also shows lower expression levels in higher FIGO stages relative to lower stages. BIRC5 is expressed in all tumors and in healthy ovarian tissues compared to our control tissue, healthy fallopian tube samples. Primary cells developed from ovarian carcinoma tissue respond to cyclopamine treatment with a short-term decrease in cell proliferation, downregulation of Hedgehog pathway genes, including BIRC5, and changes in protein dynamics. Stimulation with SHH protein results in increased cell migration, while GLI1 transfection or PTCH1 silencing demonstrate pathway upregulation. The pathway activity can be modulated by LiCl at the GSK3beta-SUFU-GLI level, suggesting at least partial non-canonical activation. Downregulation of the pathway with GANT-61 has proved to be more effective than cyclopamine. GLI inhibitors may be a superior treatment option in ovarian cancer compared to SMO inhibitors. PMID- 29039492 TI - Black rice-derived anthocyanins inhibit HER-2-positive breast cancer epithelial mesenchymal transition-mediated metastasis in vitro by suppressing FAK signaling. AB - This study aimed to investigate the role of focal adhesion kinase (FAK) signaling in the inhibitory effects of black rice anthocyanins (BRACs) on human epidermal growth factor receptor-2 (HER-2)-positive human breast cancer cell metastasis, using the MCF-10A, MCF-7 and MDA-MB-453 cells. BRACs exerted an anti-metastatic effect on the HER-2-positive breast cancer cells. The effects of BRACs on the proliferation of the MDA-MB-453 cells were examined by cell counting kit-8 assay. A wound-healing assay was used to examine the effects of BRACs on the migration of the breast cancer cells. BRACs interrupted migration and invasion. BRACs decreased the migration distance of the HER-2-positive human breast cancer cells, MDA-MB-453, by 37% compared with the cells in the untreated group. They also reduced the number of invading MDA-MB-453 cells by 68%. In addition, BRACs exerted an inhibitory effect on epithelial-mesenchymal transition. Western blot analysis revealed that BRACs decreased the phosphorylation of FAK, cSrc and p130Cas. The FAK inhibitor, Y15, was also used to further evaluate the role of FAK signaling in the anti-metastatic effects of BRACs on MDA-MB-453 cells. The results of western blot analysis revealed that BRACs increased the expression of the epithelial marker, E-cadherin, and decreased the expression of the mesenchymal markers, fibronectin and vimentin, in the MDA-MB-453 cells. In addition, BRACs decreased the interaction between HER-2 and FAK, FAK and cSrc, cSrc and p130Cas, and between FAK and p130Cas. These results suggest that BRACs suppress the metastasis of HER-2-positive breast cancer in vitro, and that the cSrc/FAK/p130Cas pathway plays a vital role in this inhibitory effect. PMID- 29039493 TI - Actein induces apoptosis in leukemia cells through suppressing RhoA/ROCK1 signaling pathway. AB - Actein is a tetracyclic triterpenoid compound, extracted from the rhizome of Cimicifuga foetida, exhibiting anticancer activities as previously reported. However, the effects of actein on human leukemia have not been explored before. In this study, the role of actein in regulating apoptosis induction in human leukemia cells was investigated. Actein administration significantly enhanced apoptosis, especially in human leukemia cell line of U937 and the primary human leukemia cells. The promotion was accompanied by caspase-9, caspase-3 and poly(ADP-ribose) polymerase (PARP) cleavage, and cytochrome c (Cyto-c) release. Additionally, translocation of Bax into mitochondria was increased by actein, while anti-apoptotic signals of myeloid cell leukemia-1 (Mcl-1) and B cell CLL/lymphoma 2 (Bcl-2) were decreased, accompanied by reduced phosphorylated Bcl 2-associated death promoter (Bad). Furthermore, protein kinase B (AKT) activation was downregulated by actein treatment in U937 cells. RhoA, but not caspase-3, regulated Rho kinase 1 (ROCK1) expression induced by actein. Suppression of RhoA and ROCK1 reduced ROCK1 expression, caspase-9, caspase-3 and PARP cleavage. In contrast, AKT inactivity enhanced apoptosis levels, as well as caspase signaling pathway expression. The anticancer role of actein was potentiated by inactivating AKT. In vivo, U937-bearing tumor growth was suppressed by actein, which was related to ROCK1 suppression, AKT dephosphorylation and apoptosis induction. These results indicated that actein has a suppressive role in human leukemia progression through inactivating RhoA/ROCK1 and inducing caspases. PMID- 29039494 TI - Internal driving factors leading to extrahepatic manifestation of the hepatitis C virus infection. AB - The hepatitis C virus (HCV) infection is associated with various extrahepatic manifestations, which are correlated with poor outcomes, and thus increase the morbidity and mortality of chronic hepatitis C (CHC). Therefore, understanding the internal linkages between systemic manifestations and HCV infection is helpful for treatment of CHC. Yet, the mechanism by which the virus evokes the systemic diseases remains to be elucidated. In the present study, using gene set enrichment analysis (GSEA) and signaling pathway impact analysis (SPIA), a comprehensive analysis of microarray data of mRNAs was conducted in HCV-infected and -uninfected Huh7.5 cells, and signaling pathways (which are significantly activated or inhibited) and certain molecules (which are commonly important in those signaling pathways) were selected. Forty signaling pathways were selected using GSEA, and eight signaling pathways were selected with SPIA. These pathways are associated with cancer, metabolism, environmental information processing and organismal systems, which provide important information for further clarifying the intrinsic associations between syndromes of HCV infection, of which seven pathways were not previously reported, including basal transcription factors, pathogenic Escherichia coli infection, shigellosis, gastric acid secretion, dorso ventral axis formation, amoebiasis and cholinergic synapse. Ten genes, SOS1, RAF1, IFNA2, IFNG, MTHFR, IGF1, CALM3, UBE2B, TP53 and BMP7 whose expression may be the key internal driving molecules, were selected using the online tool Anni 2.1. Furthermore, the present study demonstrated the internal linkages between systemic manifestations and HCV infection, and presented the potential molecules that are key to those linkages. PMID- 29039495 TI - Protective effects of neem (Azadirachta indica A. Juss.) leaf extract against cigarette smoke- and lipopolysaccharide-induced pulmonary inflammation. AB - Neem (Azadirachta indica A. Juss.) leaf has been reported to exert anti inflammatory, antibacterial and antioxidant effects. The purpose of this study was to investigate the protective effects of neem leaf extract (NLE) against cigarette smoke (CS)- and lipopolysaccharide (LPS)-induced pulmonary inflammation. Treatment with NLE significantly attenuated the infiltration of inflammatory cells, such as neutrophils and macrophages in bronchoalveolar lavage fluid (BALF). NLE also reduced the production of reactive oxygen species and the activity of neutrophil elastase in BALF. Moreover, NLE attenuated the release of pro-inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-alpha) and interleukin (IL)-6 in BALF. NLE inhibited the recruitment of inflammatory cells and the expression of monocyte chemoattractant protein-1 (MCP-1) in the lungs of mice with CS- and LPS-induced pulmonary inflammation. NLE also decreased the expression of inducible nitric oxide synthase (iNOS) in the lungs of the mice CS- and LPS-induced pulmonary inflammation. Furthermore, treatment with NLE significantly attenuated the activation of extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK) in the lungs mice exposed to CS and LPS. NLE also inhibited the phosphorylation of nuclear factor (NF)-kappaB and inhibitor of NF-kappaB (IkappaB) in the lungs of mice expose to CS and LPS. These findings thus suggest that NLE has potential for use in the treatment of chronic obstructive pulmonary disease. PMID- 29039496 TI - GSK-3beta inhibitor 6-bromo-indirubin-3'-oxime promotes both adhesive activity and drug resistance in colorectal cancer cells. AB - Multi-targets inhibitor 6-bromo-indirubin-3'-oxime (BIO) has diverse biological effects on cancer cells. The key component of the beta-catenin destruction complex glycogen synthase kinase 3beta (GSK-3beta), one of the major target for BIO, polyubiquitination and degradation of the main oncoprotein beta-catenin in colorectal cancer (CRC). In the present study, we evaluated the effect of BIO on drug resistance and biological properties of CRC cells. Whole-genome transcriptional profiling revealed that differentially expressed genes were mainly centered on well-characterized signaling pathways including stem cell, cell adhesion and cell growth in BIO-treated CRC cells. BIO treatment downregulated migration and invasion abilities of CRC cells, accompanying with MMP-9 downregulated and E-cadherin upregulated CRC cells. BIO treatment decreased apoptosis induced by 5-Fu/DDP in CRC SW480 cells. In addition, BIO treatment reversed the 5-Fu-induced CD133+ cell downregulation trend in CRC SW620 cells. After incubation with BIO, the expression levels of EpCAM, TERT and DCAMKL-1 proteins were upregulated in CRC cells. BIO treatment downregulated the activity of GSK-3beta, upregulated and transported beta-catenin to the nucleus in CRC cells. Our findings reveal that BIO treatment upregulated stemness, adhesive and chemoresistance of CRC cells. GSK-3beta inhibition and WNT/beta-catenin activation by BIO, may partly result in the biological behavior alterations in CRC cells. PMID- 29039497 TI - Edaravone protects the retina against ischemia/reperfusion-induced oxidative injury through the PI3K/Akt/Nrf2 pathway. AB - Retinal ischemia/reperfusion (I/R) injury can occur as a result of a number of ocular diseases or ischemic events in the brain, leading to possible vision loss if not treated properly. The overproduction of reactive oxygen species is important in the process of I/R injury. Edaravone, a free radical scavenger, has been demonstrated to have a neuroprotective effect in cerebral ischemia; however, its effect against retinal I/R injury remains to be fully elucidated. Therefore, the present study investigated the effects of edaravone on the oxidative parameters, retinal inflammation and apoptosis induced by I/R injury, and treated photoreceptor-derived 661W cells with hydrogen peroxide (H2O2) and edaravone to examine the underlying mechanism. For the in vivo study, oxidative parameters (malondialdehyde, DNA fragmentation, total antioxidant status, superoxide dismutase and glutathione) in the retina, retinal thickness, and apoptotic index in the ganglionic cell layer and inner nuclear layer were measured. For the in vitro study, the effects of edaravone or nuclear factor erythroid-2-related factor 2 (Nrf2) small interfering RNA or phosphatidylinositol 3-kinase (PI3K)/Akt inhibitors on cell viability, membrane integrity, levels of phosphorylated-Akt, Akt and nuclear Nrf2 of H2O2-treated 661W cells were examined. The results demonstrated that edaravone inhibited the oxidative injury in the retina induced by the retinal I/R procedure and increased retinal inflammation, and apoptosis. The results of the in vitro experiments demonstrated that edaravone effectively protected the viability and the membrane integrity of the H2O2-treated 661W cells via the phosphatidylinositol 3-kinase (PI3K)/Akt/Nrf2pathway. These results indicated the potential protective effect of edaravone against retinal I/R injury and provided a novel explanation for the protective effects of edaravone. PMID- 29039498 TI - Tanshinone IIA inhibits high glucose-induced proliferation, migration and vascularization of human retinal endothelial cells. AB - Diabetic retinopathy is the most universal and severe complication of diabetes mellitus. The primary aim of the present study was to determine whether tanshinone IIA (TSA) has an inhibitory effect on the proliferation, migration and vascularization of human retinal endothelial cells (HREC) under high glucose (HG) conditions and the associated underlying mechanism. It was demonstrated that TSA exhibited a significant inhibitory effect on the proliferation, migration and vascularization of HRECs in a dose-dependent manner, under conditions of high glucose (25 mM) medium. However, there was no distinct inhibitory effect on HREC proliferation, migration and vascularization under normal glucose (NG, 5.5 mM glucose) conditions. Reverse transcription-quantitative polymerase chain reaction, western blotting and immunofluorescence experiments were conducted to evaluate the effects of TSA on the expression levels of vascular endothelial growth factor (VEGF) and intercellular adhesion molecule (ICAM)-1. It was demonstrated that TSA significantly downregulated the expression levels of VEGF and ICAM-1 in a dose-dependent manner under HG conditions. Overall, the results of the present study indicate that TSA-mediated inhibition of proliferation, migration and vascularization in HRECs may be associated with its ability to affect the expression levels of VEGF and ICAM-1. PMID- 29039499 TI - An investigation of methyl tert-butyl ether-induced cytotoxicity and protein profile in Chinese hamster ovary cells. AB - Methyl tert-butyl ether (MTBE) is widely used as an oxygenating agent in gasoline to reduce harmful emissions. However, previous studies have demonstrated that MTBE is a cytotoxic substance that has harmful effects in vivo and in vitro. Although remarkable progress has been made in elucidating the mechanisms underlying the MTBE-induced reproductive toxicological effect in different cell lines, the precise mechanisms remain far from understood. The present study aimed to evaluate whether mammalian ovary cells were sensitive to MTBE exposure in vitro by assessing cell viability, lactate dehydrogenase (LDH) leakage, malondialdehyde (MDA) content and antioxidant enzyme activities. In addition, the effect of MTBE exposure on differential protein expression profiles was examined by two-dimensional electrophoresis and matrix-assisted laser desorption/ionization-time of flight mass spectrometry. MTBE exposure induced significant effects on cell viability, LDH leakage, plasma membrane damage and the activity of antioxidant enzymes. In the proteomic analysis, 24 proteins were demonstrated to be significantly affected by MTBE exposure. Functional analysis indicated that these proteins were involved in catalytic activity, binding, structural molecule activity, metabolic processes, cellular processes and localization, highlighting the fact that the cytotoxic mechanisms resulting from MTBE exposure are complex and diverse. The altered expression levels of two representative proteins, heat shock protein family A (Hsp70) members 8 and 9, were further confirmed by western blot analysis. The results revealed that MTBE exposure affects protein expression in Chinese hamster ovary cells and that oxidative stress and altered protein levels constitute the mechanisms underlying MTBE-induced cytotoxicity. These findings provided novel insights into the biochemical mechanisms involved in MTBE-induced cytotoxicity in the reproductive system. PMID- 29039500 TI - Gene expression profile identifies potential biomarkers for human intervertebral disc degeneration. AB - The present study aimed to reveal the potential genes associated with the pathogenesis of intervertebral disc degeneration (IDD) by analyzing microarray data using bioinformatics. Gene expression profiles of two regions of the intervertebral disc were compared between patients with IDD and controls. GSE70362 containing two groups of gene expression profiles, 16 nucleus pulposus (NP) samples from patients with IDD and 8 from controls, and 16 annulus fibrosus (AF) samples from patients with IDD and 8 from controls, was downloaded from the Gene Expression Omnibus database. A total of 93 and 114 differentially expressed genes (DEGs) were identified in NP and AF samples, respectively, using a limma software package for the R programming environment. Gene Ontology (GO) function enrichment analysis was performed to identify the associated biological functions of DEGs in IDD, which indicated that the DEGs may be involved in various processes, including cell adhesion, biological adhesion and extracellular matrix organization. Pathway enrichment analysis using the Kyoto Encyclopedia of Genes and Genomes (KEGG) demonstrated that the identified DEGs were potentially involved in focal adhesion and the p53 signaling pathway. Further analysis revealed that there were 35 common DEGs observed between the two regions (NP and AF), which may be further regulated by 6 clusters of microRNAs (miRNAs) retrieved with WebGestalt. The genes in the DEG-miRNA regulatory network were annotated using GO function and KEGG pathway enrichment analysis, among which extracellular matrix organization was the most significant disrupted biological process and focal adhesion was the most significant dysregulated pathway. In addition, the result of protein-protein interaction network modules demonstrated the involvement of inflammatory cytokine interferon signaling in IDD. These findings may not only advance the understanding of the pathogenesis of IDD, but also identify novel potential biomarkers for this disease. PMID- 29039501 TI - Isoimperatorin ameliorates osteoarthritis by downregulating the mammalian target of rapamycin C1 signaling pathway. AB - Osteoarthritis (OA) is the most common disease of the joints, and is characterized by the breakdown of cartilage and degradation of the extracellular matrix. OA causes a high level of patient suffering and incurs large societal costs; however, the current strategies for treating OA are restricted due to limited understanding of the underlying molecular and cellular mechanisms. In the present study, the beneficial effects of isoimperatorin (Iso) were investigated using an experimental mouse model of OA, and its mechanism of action on primary chondrocytes was elucidated. Destabilization of the medial meniscus was performed on 8-week-old male mice to induce OA in the knees. Iso (500 mg/g/day) was intragastrically administered for 4 weeks. Degeneration of articular cartilage was assessed by histology using the Osteoarthritis Research Society International scoring system. The expression of matrix metalloproteinase (MMP)13, Runt-related transcription factor (Runx)2, type X collagen (Col X) and vascular endothelial growth factor (VEGF) in the knee joints was examined by immunohistochemistry. In vitro, murine primary chondrocytes were treated with various concentrations of Iso, followed by 10 ng/ml interleukin-1. The mRNA expression levels of MMP13, Runx2, Col X and VEGF were determined by reverse transcription-quantitative polymerase chain reaction. The levels of autophagy and mammalian target of rapamycin (mTOR) signaling were determined by western blotting. Iso significantly ameliorated the severity of articular cartilage degradation in mice with experimental OA. The expression levels of MMP13, Runx2, Col X and VEGF were reduced in Iso-treated mice. In murine primary chondrocytes, Iso also reduced MMP13, Runx2, Col X and VEGF expression, and activated autophagy by downregulating the mTOR complex 1 (mTORC1) signaling pathway. Therefore, the results of the present study demonstrated that Iso ameliorates OA-induced pathological alterations by delaying chondrocyte deterioration, activating autophagy and inhibiting mTORC1, which suggests that Iso may have therapeutic potential for attenuating articular cartilage degradation and treating OA. PMID- 29039503 TI - Inhibitory effects of lupane-type triterpenoid saponins from the leaves of Acanthopanax gracilistylus on lipopolysaccharide-induced TNF-alpha, IL-1beta and high-mobility group box 1 release in macrophages. AB - Acanthopanax gracilistylus (AGS) has long been used in traditional Chinese medicine for the treatment of various inflammatory diseases. 3-O-beta-D glucopyranosyl 3alpha, 11alpha-dihydroxylup-20(29)-en-28-oic acid, acantrifoside A, acankoreoside D, acankoreoside B and acankoreoside A are major lupane-type triterpenoid saponins derived from AGS. In the present study, these five saponins were isolated from AGS by chromatography and their anti-inflammatory activities were investigated in lipopolysaccharide (LPS)-treated RAW264.7 macrophages. Cell viability was evaluated by MTT assay. Tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta and NF-kappaB p65 were measured by ELISA. The gene expression levels of TNF-alpha and IL-1beta was detected by reverse-transcription polymerase chain reaction. And high-mobility group box 1 (HMGB1) were analyzed by western blotting. The results demonstrated that these five saponins significantly suppressed LPS-induced expression of TNF-alpha and IL-1beta at the mRNA and protein level in RAW264.7 cells. Further analysis revealed that acankoreoside A and acankoreoside B were able to reduce the secretion of HMGB1 and NF-kappaB activity induced by LPS in RAW264.7 macrophages. Taken together, these results suggested that the anti-inflammatory activity of AGS-derived saponins may be associated with the downregulation of TNF-alpha and IL-1beta, and the 'late phase' proinflammatory cytokine HMGB1, via negative regulation of the NF-kappaB pathway in RAW264.7 cells. PMID- 29039502 TI - Long non-coding RNA HOTTIP promotes hepatocellular carcinoma tumorigenesis and development: A comprehensive investigation based on bioinformatics, qRT-PCR and meta-analysis of 393 cases. AB - HOTTIP functions as an independent biomarker in multiple cancers. However, the role of HOTTIP in hepatocellular carcinoma (HCC) remains unclear. In this study, we sought to investigate the HOTTIP expression in HCC and normal liver. We combined quantitative reverse transcription-polymerase chain reactions (qRT-PCR), Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA), Multi Experiment Matrix (MEM) and Oncomine database to assess the clinical role and the potential molecular mechanism of HOTTIP in HCC. Furthermore, a meta-analysis was performed to evaluate the relationship between HOTTIP and HCC tumorigenesis and development. Additionally, bioinformatics analysis, which contained Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and network analysis, were applied to investigate the underlying functions, pathways and networks of the potential genes. HOTTIP was obviously upregulated in HCC. A statistically significant higher expression of HOTTIP was found in TNM (III +IV), age (>=60), sex (male), race (white) and cirrhosis (no) compared to the control groups (P<0.05). Furthermore, the meta-analysis of 393 cases from multiple centers indicated that HOTTIP had high diagnostic value in HCC. Additionally, according to GO and KEGG analyses, we found that the most strongly enriched functional terms were gland development, transcription factor activity and extrinsic to membrane. Also, the HOTTIP co-expressed genes were significantly related to PPAR signaling pathway. We speculate that HOTTIP might play a vital part in HCC via regulating various pathways, especially PPAR signaling pathway. However, the detailed mechanism should be confirmed by functional experiments. PMID- 29039504 TI - Inhibitory effects of ubiquitination of synoviolin by PADI4. AB - Rheumatoid arthritis (RA) is a chronic inflammatory articular disease that is characterized by synovial hyperplasia. A number of signaling pathways are associated with the development and induced symptoms of RA. Notably, patients with RA have increased protein citrullination and generation of auto-antibodies against citrullinated proteins. Genome wide association studies have revealed that peptidyl-arginine deiminase 4 (PADI4) is an enzyme implicated in citrullination in the RA synovium. Autoantibodies targeting citrullinated proteins are used as diagnostic markers in patients with RA. The functions associated with citrullinated proteins are thought to induce autoimmunity, however, the regulatory mechanisms of citrullination via PADI4 are unclear. The group has previously cloned an E3 ubiquitin ligase, synoviolin (SYVN1), from the RA synovium, demonstrating that SYVN1 serves critical roles in synovial hyperplasia. The data indicated that the endoplasmic reticulum (ER) associated degradation system, which involves SYVN1, may have important roles in the proliferation of synoviocytes. In addition, ubiquitination by SYVN1 is associated with fibrosis, inflammation and cytokine production via the regulation of ER stress signals and quality control of proteins. The present study investigated the crosstalk between the representative post-translational signaling processes, citrullination and ubiquitination. The results revealed that PADI4 interacted with SYVN1 directly and that overexpression of PADI4 suppressed the ubiquitination of proteins. Thus, a reduction in ER stress induced by PADI4 may abrogate the initiation of chronic RA by suppressing the proliferative signals of RA synoviocytes. PMID- 29039505 TI - Characterization of acid-tolerance-associated small RNAs in clinical isolates of Streptococcus mutans: Potential biomarkers for caries prevention. AB - Streptococcus mutans is a cariogenic bacterium that contributes to dental caries due to its ability to produce lactic acid, which acidifies the local environment. The potential of S. mutans to respond to environmental stress and tolerate low pH is essential for its survival and predominance in caries lesions. Small noncoding RNAs (sRNAs) have been reported to be involved in bacterial stress and virulence. Few studies have investigated the sRNAs of S. mutans and the function of these sRNAs remains to be elucidated. In the present study, the association between sRNA133474 and acid tolerance, including potential underlying mechanisms, were investigated within clinical strains of S. mutans. From pediatric dental plaques, 20 strains of S. mutans were isolated. An acid killing assay was performed to analyze acid tolerance of S. mutans. Expression patterns of sRNA133474 were investigated during various growth phases under various acidic conditions via reverse transcription-quantitative polymerase chain reaction. RNA predator and Kyoto Encyclopedia of Genes and Genomes analyses were performed to predict target mRNAs of sRNA133474 and to examine the involvement of putative pathways of target mRNAs, respectively. The results of the present study demonstrated that sRNA133474 activity was growth phase-dependent, and two distinct expression patterns were identified in 10 clinical strains. At pH 5.5 and 7.5 the expression levels of sRNA133474 were significantly different, and high-acid tolerant strains exhibited reduced expression levels of sRNA133474 compared with low-acid tolerant strains. A correlation between sRNA133474 expression levels and acid tolerance was observed in 20 clinical isolates of S. mutans (r=-0.6298, P<0.01). Finally, five target mRNAs (liaS, liaR, comE, covR and ciaR) involved in the two-component system (TCS) were selected for further evaluation; the expression levels of three target mRNAs (liaR, ciaR and covR) were negatively correlated with sRNA133474 expression levels. In conclusion, the results of the present study suggested that S. mutans may utilize sRNA133474 to orchestrate TCSs for optimal adaption to acidic pH in clinical strains. PMID- 29039506 TI - Hypothermic machine perfusion ameliorates inflammation during ischemia reperfusion injury via sirtuin-1-mediated deacetylation of nuclear factor-kappaB p65 in rat livers donated after circulatory death. AB - Hypothermic machine perfusion (HMP) effectively reduces ischemia-reperfusion injury (IRI) in livers donated after circulatory death (DCD) when compared with cold storage (CS). However, the underlying mechanisms remain unclear. The current study aimed to investigate the cellular mechanisms by which HMP ameliorates the inflammatory response during IRI. Adult male Sprague-Dawley rat livers were exposed to 30 min of warm ischemia following cardiac arrest and preserved by CS or HMP for 3 h (n=3 per group). The severity of IRI was assessed in vitro on normothermic reperfusion for 2 h, and intrahepatic resistance (IHR) and bile production were subsequently recorded. The perfusate was analyzed for transaminase leakage and oxygen consumption. Livers were subsequently subjected to histological examination, and measurement of adenosine triphosphate (ATP) levels, malondialdehyde (MDA) content, superoxide dismutase (SOD) activity, nicotinamide adenine dinucleotide (NAD)+ levels and the ratio of NAD+/NADH. In addition, the protein expression of sirtuin-1 (SIRT-1), acetylated-nuclear factor kappaB (NF-kappaB) p65 and NF-kappaB p65 was detected by western blotting, and the mRNA expression of the inflammatory cytokines interleukin (IL)-6 and tumor necrosis factor (TNF)-alpha was determined by reverse transcription-quantitative polymerase chain reaction. Compared with CS, HMP resulted in significantly lower IHR, transaminase leakage and MDA levels, and higher oxygen consumption, ATP levels and SOD activity. In addition, improved preservation of hepatic histology was observed in HMP compared with CS. The mRNA expression of NF-kappaB p65, IL-6 and TNF-alpha was significantly decreased in the HMP group compared with CS samples. Under HMP preservation, SIRT-1 activity and protein expression were increased, while the protein expression of acetylated-NF-kappaB p65 was decreased, compared with CS. These results indicate that HMP may reduce the inflammatory response during IRI via SIRT-1-mediated deacetylation of NF-kappaB p65. These findings may provide a theoretical basis for the clinical application of HMP as an effective strategy to preserve DCD livers. PMID- 29039507 TI - Effect of the adenovirus-mediated Wip1 gene on lumbar intervertebral disc degeneration in a rabbit model. AB - The present study aimed to investigate the effect of the adenovirus-mediated wild type p53-induced protein phosphatase 1 (Wip1) gene on lumbar disc degeneration (LDD) in a rabbit model. Adult New Zealand white rabbits were used as experimental subjects. The rabbits were divided into LDD groups (groups A-C of rabbit models of LDD) and control groups (groups D-F of normal rabbits). The animals in groups A and D were injected with the Wip1 gene vector, those in groups B and E were injected with an empty vector, and those in groups C and F were injected with phosphate-buffered saline. Type II collagen was detected using a streptavidin-biotin complex immunohistochemistry method. Postoperative X-ray imaging showed a significant increase in the recovery of rabbits from group A, compared with those from groups B and C. The nucleus pulposus proteoglycan content of the intervertebral discs (L2-3, L3-4 and L4-5) of group A remained higher, compared with the content in groups B and C, and the values in groups B and C differed from those of groups E and F. At 3, 6 and 9 weeks post-injection, the content of type II collagen of intervertebral discs (L2-3, L3-4 and L4-5) in group A differed from groups B and C, and the values in groups A-C remained lower, compared with those in groups D-F. The Wip1 gene exhibited a therapeutic effect in the treatment of LDD. PMID- 29039508 TI - Transformation of liver cells by 3-methylcholanthrene potentiates oxidative stress via the downregulation of glutathione synthesis. AB - Polycyclic aromatic hydrocarbons (PAHs) are widespread contaminants resulting from the incomplete combustion of organic materials in the environment. The primary concern for the hazardous effect of PAHs is their ability to activate the pathway linked to the aryl hydrocarbon receptor (AhR) and lead to carcinogenesis. While previous research has demonstrated that oxidative stress plays a key role in the AhR-dependent toxic response, the effect of PAHs on the biosynthesis of glutathione (GSH), which is a powerful endogenous antioxidant, has not been extensively investigated. In the present study, we utilized a global metabolomic approach, via high resolution magic angle spinning nuclear magnetic resonance spectroscopy, and identified significant metabolome differences between non tumorigenic liver cells (BNL CL.2; CL2) and transformed liver cells (BNL 1MEA. 7R.1; 1MEA) chronically exposed to 3-methylcholanthrene (3MC), a well-known carcinogenic PAH. A significant change that was observed, was a lower GSH level in 1MEA cells compared with that in CL2 cells. This was contrasted by increased levels of precursor metabolites for GSH synthesis, such as S-adenosylmethionine and cysteine. These changes were accompanied by a significantly reduced expression of gamma-glutamylcysteine ligase (GCL), known to be the rate-limiting step of GSH synthesis. Furthermore, the protein level of cysteine dioxygenase was downregulated; however, the concentration of taurine was unaltered. Therefore, the present study demonstrated that cells transformed by chronic exposure to 3MC exhibited inhibition of GSH biosynthesis by suppression of GCL protein expression and reduction of cysteine availability, which may subsequently render cells vulnerable to oxidative stress. PMID- 29039509 TI - Evaluation of a novel dry eye model induced by oral administration of finasteride. AB - Dry eye is a common eye disease, and suitable animal models are indispensable for investigating the pathogenesis and developing treatments for dry eye. The present study was conducted to develop an androgen deficiency dry eye model induced by finasteride, and to evaluate ocular surface status and inflammatory cytokine gene expression in the lacrimal gland using a cytokine antibody array system. The results revealed that the antiandrogenic drug finasteride induced significant tear deficiency, and the histopathology results revealed significant inflammatory cell infiltration in the lacrimal gland. The cytokine antibody array system identified increased B7-2 (also known as cluster of differentiation 86), interleukin (IL)-1beta, IL-4, IL-6, IL-10, matrix metalloproteinase-8, Fas ligand, tumor necrosis factor (TNF)-alpha and metalloproteinase inhibitor 1 levels in the lacrimal gland of the dry eye model. These cytokines were validated as candidate markers through the use of western blot analysis and reverse transcription-quantitative polymerase chain reaction. Both analyses confirmed a significant increase in proinflammatory cytokines, including IL-1beta, IL-6 and TNF-alpha, and anti-inflammatory cytokines, including IL-4 and IL-10. The aforementioned data suggested that inflammation in antiandrogenic models resulted from a balance between inflammatory and anti-inflammatory responses. Thus, direct finasteride administration may produce an applicable model for dry eye mediated by androgen deficiency. In addition, there may be a correlation between sex, steroid deficiency and the inflammatory response. The findings of the present study have provided useful information for the pathogenesis and diagnosis of dry eye mediated by androgen deficiency. PMID- 29039510 TI - Homocysteine-induced oxidative stress through TLR4/NF-kappaB/DNMT1-mediated LOX-1 DNA methylation in endothelial cells. AB - Atherosclerosis (AS) is a progressive disease of multifactorial origin, which occurs in response to endothelial injury. Increased homocysteine (Hcy) is considered a major cause of endothelial dysfunction, oxidative stress and DNA methylation; however, the mechanisms remain to be fully elucidated. The aim of the present study was to investigate whether Hcy causes injury to endothelial cells (ECs) by the effect of lectin-like oxidized-low density lipoprotein receptor-1 (LOX-1) DNA methylation through toll-like receptor 4(TLR4)/nuclear factor (NF)-kappaB/DNA methyltransferase (DNMT)1. The ECs were treated with different concentrations of Hcy, and it was found that Hcy promoted the expression of TLR4, leading to EC injury. The effect of oxidative stress was analyzed by measuring superoxide dismutase, malondialdehyde and hydrogen peroxide in the ECs. In addition, the association between NF-kappaB and DNMT1 was examined by treatment of the ECs with pyrrolidine dithiocarbamate (PDTC). The results suggested that Hcy induced LOX-1 DNA hypomethyaltion to promote the expression levels of LOX-1. Taken together, Hcy injured the ECs through the effect of methylation and trans-sulfuration metabolism of LOX-1 through TLR4/NF kappaB/DNMT1. Following injury to the ECs, lipids, particularly ox-LDL, accumulated in the sub-endothelial layer to promote the formation of AS. PMID- 29039511 TI - TRAIL mutant membrane penetrating peptide alike (TMPPA) TRAIL-Mu3 enhances the antitumor effects of TRAIL in vitro and in vivo. AB - The aim of the present study was to prepare a tumor necrosis factor ligand superfamily member 10 (TRAIL) mutant membrane penetrating peptide alike (TMPPA), TRAIL-Mu3, and to investigate its antitumor effects in colorectal cancer in vitro and in vivo. The pMD19/TRAIL plasmid with designed primers was amplified to construct the target gene; it was ligated with an expression plasmid and the expression was confirmed. Subsequently, TRAIL-Mu3 was purified and further confirmed by western blot analysis. Immunofluorescence analysis was used to detect the distribution of TRAIL-Mu3 in colorectal cancer cells. In addition, the present study investigated the antitumor effects of TRAIL-Mu3 on colorectal cancer in vitro and in vivo. A novel TMPPA, TRAIL-Mu3, was synthesized in the present study. Following a series of detection experiments, it was confirmed that the TRAIL-Mu3 gene was obtained and was able to express TRAIL-Mu3 successfully. The immunofluorescence analysis demonstrated that TRAIL-Mu3 exhibited a markedly enhanced affinity to the colorectal cancer cell surface. In addition, TRAIL-Mu3 exerted stronger antitumor effects, compared with TRAIL, on colorectal cancer in vitro and in vivo. PMID- 29039512 TI - Sporamin suppresses growth of human esophageal squamous cell carcinoma cells by inhibition of NF-kappaB via an AKT-independent pathway. AB - The aim of the present study was to determine whether sporamin, a trypsin inhibitor, suppresses the growth of human esophageal squamous cell carcinoma (ESCC) cells in vitro. Sporamin treatment led to the suppression of viability and proliferation of human ESCC cell lines, EC9706 and EC109, as determined by MTT and [3H] thymidine incorporation assays, respectively. Flow cytometry and fluorescence microscopy demonstrated that sporamin significantly induced apoptosis in EC9706 and EC109 cells. Western blotting demonstrated that sporamin downregulated the expression of Bcl-2 and Bcl-2 like 1, and upregulated the expression of Bcl-2-associated X in EC9706 and EC109 cells. In addition, marked inhibition of nuclear factor (NF)-kappaB activation was observed in sporamin treated EC9706 and EC109 cells by an electrophoretic mobility shift assay. Sporamin treatment also resulted in reduced expression levels of phosphorylated (p)-NF-kappaB inhibitor alpha and nuclear NF-kappaB p65. However, the expression levels of p-protein inase (AKT) and its downstream target, p-p70 S6 kinase, were not markedly altered following sporamin treatment. In conclusion, sporamin may suppress the growth of human ESCC cells via NF-kappaB-dependent and AKT independent mechanisms and may act as a promising natural therapeutic agent for the treatment of human ESCC. PMID- 29039513 TI - BIRC5 is a novel target of peroxisome proliferator-activated receptor gamma in brain microvascular endothelium cells during cerebral ischemia. AB - Cerebral ischemia is a leading cause of ischemic stroke, which may lead to severe disability and mortality worldwide. There are some key factors concerned in cardioprotection, such as peroxisome proliferator-activated receptor gamma (PPARgamma), a ligand binding transcription factor involved in various biological functions including atherosclerosis, vascular dysfunction and hypertension, and baculoviral IAP repeat-containing 5 (BIRC5), which may protect human brain endothelial cells from ischemia-induced apoptosis. To determine the potential roles of PPARgamma in brain microvascular endothelial (bEnd.3) cells during cerebral ischemia and the relationship between PPARgamma and BIRC5, a cerebral ischemia model was established with bEnd.3 cells cells by oxygen-glucose deprivation (OGD) treatment. OGD treatment reduced proliferation and enhanced apoptosis of bEnd.3 cells in a time-dependent manner. PPARgamma expression levels were decreased in bEnd.3 cells following OGD treatment. Upregulation of PPARgamma expression protected bEnd.3 cells from ischemia injury and also upregulated BIRC5 expression. PPARgamma-specific binding sites in the BIRC5 promoter were predicted bioinformatically and verified by luciferase reporter experiments. Results from electrophoretic mobility shift/supershift and chromatin immunoprecipitation assays suggested that BIRC5 may be a novel target of PPARgamma transcriptional regulation during ischemic injury. The present results indicated that PPARgamma may serve a protective role on bEnd.3 cells and that BIRC5 may be a downstream target of PPARgamma regulation during cerebral ischemia. PMID- 29039514 TI - 5,6,7,3',4',5'-Hexamethoxyflavone inhibits growth of triple-negative breast cancer cells via suppression of MAPK and Akt signaling pathways and arresting cell cycle. AB - Natural components continue to be an important source for the discovery and development of novel anticancer agents. Polymethoxyflavones are a class of flavonoids found in citrus fruits and medicinal plants used in traditional medicine. In the present study, the anticancer activity of the well-known nobiletin (5,6,7,8,3',4'-hexamethoxyflavone) was compared against its less studied structural isomer 5,6,7,3',4',5'-hexamethoxyflavone. These compounds were evaluated on the Hs578T triple-negative breast cancer cell line and its more migratory subclone Hs578Ts(i)8. 5,6,7,3',4',5'-hexamethoxyflavone was found to be less toxic than nobiletin, while a similar growth inhibitory effect was observed after 72 h. Additionally, 5,6,7,3',4',5'-hexamethoxyflavone arrested the cell cycle in the G2/M phase, while no effect was observed on apoptosis or the migratory behavior of these cells. Furthermore, mechanistic studies revealed that the growth inhibition was concomitant with reduced phosphorylation levels of signaling molecules in the MAPK and Akt pathways as well as cell cycle regulators, involved in regulating cell proliferation, survival and cell cycle. In summary, the present study is the first to report on the anticancer activities of 5,6,7,3',4',5'-hexamethoxyflavone and to provide evidence that this flavone could have a greater potential than nobiletin for prevention or treatment of triple- negative breast cancer. PMID- 29039516 TI - Baicalin alleviates H2O2-induced injury of H9c2 cardiomyocytes through suppression of the Wnt/beta-catenin signaling pathway. AB - Baicalin is one of the active ingredients extracted from the dry root of Scutellaria baicalensis Georgi, which has been reported to be effective in preventing myocardial ischemia reperfusion injury. However, the mechanisms underlying its cardioprotective activities remain to be elucidated. In the present study, H2O2-treated cardiomyocyte H9c2 cell line served as an in vitro model of oxidation-damaged cardiomyocytes to evaluate the effects of baicalin on the cardiac injury, and to investigate the underlying molecular mechanism. The results of the TOPFlash/Renilla reporter gene assay indicated that baicalin significantly suppressed the activation of proto-oncogene Wnt-1 (Wnt)/beta catenin in 293 cells, in a dose dependent manner. In addition, baicalin significantly inhibited H2O2-induced loss of H9c2 cell viability in MTT assay. Furthermore, western blotting analysis demonstrated that baicalin markedly attenuated H2O2-induced cell apoptosis, as demonstrated by the down-regulation of cleaved caspase-3 and the increase in the apoptosis regulator Bcl-2 (Bcl 2)/apoptosis regulator BAX (Bax) ratio following baicalin treatment in H2O2 treated H9c2 cells. Furthermore, baicalin markedly decreased the expression of beta-catenin and downstream Axin-2 and myc proto-oncogene protein in H2O2-treated H9c2 cells. Knockdown of beta-catenin expression inhibited H2O2-induced cell apoptosis. Finally, LiCl (a beta-catenin stabilizer) induced apoptosis of H9c2 cells by upregulating the expression of beta-catenin, which was significantly neutralized by the treatment with baicalin. Taken together, it is hypothesized that baicalin exerts cardioprotective effects via suppression of the Wnt/beta catenin signaling pathway. PMID- 29039515 TI - Calcitonin gene-related peptide induces IL-6 expression in RAW264.7 macrophages mediated by mmu_circRNA_007893. AB - Several circular RNAs (circRNAs) may have role important roles in biological processes, however, there is limited knowledge of circRNAs and their potential functions in RAW264.7 macrophages. The present study aimed to examine the expression of circRNAs and explore their effects on interleukin-6 (IL-6) expression induced by calcitonin gene-related peptide (CGRP) in RAW264.7 macrophages. To identify circRNAs, the circRNA expression was measured in macrophages with or without CGRP stimulation. The interaction between circRNAs and microRNAs (miRs) were then identified using bioinformatic software and networks. In the current study, it was demonstrated that CGRP increased the expression of IL-6 mRNA in a dose- and time-dependent manner. Furthermore, mmu_circRNA_007893 was significantly increased in the CGRP-stimulated macrophages. Silencing of mmu_circRNA_007893, IL-6 mRNA expression was significantly decreased, whereas mmu-miR-485-5p expression was markedly increased. Furthermore, when overexpression of mmu-miR-485-5p, IL-6 mRNA was markedly decreased. The results demonstrated that CGRP-induced IL-6 mRNA expression was mediated by mmu_circRNA_007893, and mmu_circRNA_007893 functioned as an endogenous mmu-miR-485-5p sponge as part of induction of IL-6 mRNA expression. PMID- 29039518 TI - Leflunomide inhibits proliferation and tumorigenesis of oral squamous cell carcinoma. AB - Oral squamous cell carcinoma (OSCC) is the most prevalent pathological cancer occurring in the head and neck area. Progress has previously been made regarding treatment strategies of OSCC, however the 5-year survival rate of these patients is only 50%. The present study examined if leflunomide (LEF), a drug primarily used for the treatment of rheumatoid arthritis, exhibited antitumor effects in OSCC. The results demonstrated that LEF inhibited cell proliferation and blocked the cell cycle at the S phase in OSCC cells, with upregulation of cyclin A protein expression. LEF reduced the expression of dihydroorotate dehydrogenase, which is an essential enzyme in the de novo pyrimidine biosynthetic pathway. LEF additionally inhibited colony formation in soft agar and reduced tumor growth in a xenograft model. The results suggested that LEF may act as a potential therapeutic agent in the treatment of OSCC in the future. PMID- 29039517 TI - MicroRNA-455 inhibits cell proliferation and invasion of epithelial ovarian cancer by directly targeting Notch1. AB - Ovarian cancer (OC) is the fifth leading cause of cancer-associated mortality among women in developed countries. Numerous microRNAs are aberrantly expressed in epithelial (E) OC, and are involved in EOC formation and progression. As such, microRNAs may be investigated as diagnostic and prognostic molecular biomarkers, and therapeutic targets for patients with EOC. For instance, microRNA-455 (miR 455) is abnormally expressed in various types of human cancer. However, details on the expression level, biological roles and underlying mechanism of miR-455 in EOC remain unclear. In the present study, the expression of miR-455 in EOC was detected, and its association with clinical characteristics was analysed. The functional roles and underlying mechanisms of miR-455 in EOC were also investigated. The results revealed that miR-455 expression in EOC tissues and cell lines was significantly downregulated. Furthermore, miR-455 downregulation was correlated with tumor size, International Federation of Gynecology and Obstetrics stage and lymph node metastasis of patients with EOC. Restoration of miR-455 expression efficiently inhibited cell proliferation and invasion in vitro. Notch1 was identified as a direct target of miR-455 in EOC. The mRNA and protein expression levels of Notch1 were higher in EOC tissues compared with in normal ovarian epithelial tissues. Spearman's correlation analysis indicated that miR-455 expression was negatively correlated with the mRNA level of Notch1 in EOC tissues. Notch1 overexpression was able to restore the EOC cell proliferation and invasion abilities suppressed by miR-455. The present study provided evidence that the dysregulation of the miR-455/Notch1 signalling pathway may be essential for EOC occurrence and development. In addition, the results confirmed the tumor suppressive roles of miR-455 in modulating EOC proliferation and invasion through regulation of Notch1 expression. Thus, miR-455 may be a novel miRNA-based therapeutic target to treat patients with EOC. PMID- 29039519 TI - RUNX3 plays an important role in mediating the BMP9-induced osteogenic differentiation of mesenchymal stem cells. AB - Although bone morphogenetic protein 9 (BMP9) is highly capable of promoting the osteogenic differentiation of mesenchymal stem cells (MSCs) both in vitro and in vivo, the molecular mechanisms involved remain to be fully elucidated. Runt related transcription factor (RUNX)3 is an essential regulator of osteoblast/chondrocyte maturation. However, the exact role of RUNX3 in BMP9 osteoinductive activity is unknown. In this study, we sought to investigate the functional role of RUNX3 in the BMP9-induced osteogenic differentiation of MSCs. We found that BMP9 upregulated the endogenous expression of RUNX3 in MSCs. The overexpression or/and knockdown of RUNX3 both increased the levels of alkaline phosphatase (ALP) a marker of BMP9-induced early osteogenic differentiation. Nevertheless, matrix mineralization, a marker of BMP9-induced late osteogenic differentiation was enhanced by the overexpression of RUNX3, whereas it was inhibited by the knockdown of RUNX3. The BMP9-induced expression of osteogenic pivotal transcription factors [inhibitor of differentiation (Id)3, distal-less homeobox 5 (DLX5) and RUNX2)] was further increased by the overexpression of RUNX3; however, it was reduced by the knockdown of RUNX3. However, the expression levels of Id1 and Id2 were both enhanced by the overexpression or/and knockdown of RUNX3. The BMP9-induced phosphorylation of Smad1/5/8 was increased with the overexpression of RUNX3, and yet was decreased with the knockdown of RUNX3. Collectively, our findings suggest that RUNX3 is an essential modulator of the BMP9-induced osteoblast lineage differentiation of MSCs. PMID- 29039520 TI - Concentration-dependent effects of paeoniflorin on proliferation and apoptosis of vascular smooth muscle cells. AB - Vascular smooth muscle cells (VSMCs) are an important component of arterial walls, and their dysfunction may serve an important role in the development of cardiovascular diseases, including atherosclerosis and restenosis. Paeoniflorin (PF) is a principal component of the commonly used traditional Chinese medicine, peonies. To the best of our knowledge, the effects of PF on apoptosis and proliferation of VSMCs and its underlying molecular mechanisms have not been widely reported. Therefore, the present study was designed to investigated this phenomenon. VSMCs were treated with different concentrations of PF (25, 50 and 100 ug/ml) for 12, 24 or 48 h. The data demonstrated that PF treatment not only significantly decreased cell viability and DNA synthesis but also blocked G0/G1 cell cycle progression. This effect was associated with a decreased expression of cyclin D1, cyclin E, cyclin-dependent kinase (CDK)4 and CDK2 as well as an upregulation of p21. Notably, a significant concentration-dependent decrease in the phosphorylation of p65 and nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor-alpha (IkappaBalpha) was observed. In addition, it was demonstrated that PF promoted the apoptosis of VSMCs, which was associated with the increased expression of caspases. In conclusion, PF inhibited the proliferation of VSMCs by downregulating proteins associated with the nuclear factor-kappaB signaling pathway. Furthermore, it promoted the apoptosis of VSMCs by upregulating the expression of caspases. These results may be useful in improving the understanding of the molecular mechanisms underlying the apoptotic and anti-proliferative effects of PF on VSMCs, and facilitate the development of novel treatments for cardiovascular diseases. PMID- 29039521 TI - Antitumoral effect of arsenic compound, sodium metaarsenite (KML001), on multiple myeloma cells. AB - KML001 (sodium metaarsenite;NaAs2O3) is known to have antitumor activity against a variety of cancers. In this study, we examined its effect on multiple myeloma (MM). KML001 reduced the growth of all MM cell lines examined with an IC50 of 5x10-8 M. Exposure to KML001 (5x10-8 M) decreased levels of cyclins A/B1/D1/E1, CDK2/4/6 in U266 cells and increased the p21 and p27 levels. Furthermore, p21 became bound to CDK2/4/6, resulting in a reduction of CDK2/4/6 kinase activity. The cleaved forms of Bcl-2, and caspases-3, -8 and -9 were detected, and the anti apoptotic molecule, Bax, also increased. Activation of STAT1/3, NF-kappaB (p65 and p50 subunits), pAKT and pERK decreased, and p-PTEN increased. There was also a significant reduction of hTERT at 12 h and upregulation of gamma-H2AX and CHK1/2 molecules at 24 h. Thus, KML001 appears to have antitumor activity against MM by inhibiting various oncogenic signaling pathways. It may be useful for treating MM. PMID- 29039522 TI - [Retracted] Atorvastatin protects cardiomyocytes against OGD/R-induced apoptosis by inhibiting miR-199a-5p. AB - Following the publication of this article, the authors find that they are not able to reproduce certain of the results presented in this paper. Consequently, the authors have decided to retract this paper from the publication. All of the authors agree to this retraction. The authors sincerely regret this decision, and apologize to the Editor and to the readership of the Journal for any inconvenience caused. [The original article was published in Molecular Medicine Reports 16: 3807-3816, 2017; DOI: 10.3892/mmr.2017.7084]. PMID- 29039523 TI - Analysis of MEN1 c.482G>A (p.Gly161Asp) mutation in a pedigree with familial multiple endocrine neoplasia type 1. AB - Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder characterized by the development of neuroendocrine tumors, which in turn are caused by mutations in the MEN1 gene. In the present study, a case of a 46-year old woman who was clinically diagnosed with MEN1 based on the presence of prolactinoma and bilateral parathyroid adenoma was reported. The patient's serum prolactin (PRL) levels were successfully controlled via bromocriptine therapy, and the serum levels of calcium and intact parathyroid hormone (PTH) reduced one day following parathyroidectomy. Genetic testing revealed a missense mutation c.482G>A (p.Gly161Asp) in exon 3 of the MEN1 gene, and it led to the identification of two carriers in the pedigree (patient's elder sister and brother). Both of the carriers revealed to have high blood calcium, PTH and PRL. The mutation identified in this pedigree has never been reported in China. The sequence alignments and tertiary structure of menin protein were made by Polyphen2, SNPs3D, and SIFT, which were used to predict the function of mutant menin. Since the mutant menin may interfere with the menin-JunD or menin-Smad3 interactions, further investigations are necessary to explore the function of mutant protein. In view of that, identification of mutations and longtime follow up are important for patients with a pedigree clearly indicating MEN1. PMID- 29039524 TI - Synergistic effects of baicalein with gemcitabine or docetaxel on the proliferation, migration and apoptosis of pancreatic cancer cells. AB - Baicalein, a type of flavonoids extracted from Scutellaria baicalensis Georgi, has been reported to be a very promising drug for pancreatic cancer. However, it is unclear whether combination of baicalein with gemcitabine or docetaxel is synergistic to the treatment for pancreatic cancer (PC). We investigated the combinational effects of baicalein with gemcitabine or docetaxel on proliferation, cell cycle, migration and apoptosis of human PC cells. Administration of baicalein alone significantly inhibit the proliferation of PC cells. Notably, when it is combined with gemcitabine or docetaxel, combination index (CI) values calculated by Calcusyn software are smaller than 1, indicating the synergism of baicalein with gemcitabine or docetaxel for the treatment of PC cells. Consistently, EdU assay showed that administration of baicalein significantly enhanced the capacity of gemicitabine to inhibit proliferation of PC cells. Cell cycle analysis showed that high-concentration of baicalein was able to arrest PC cells in the S phase. Furthermore, low concentration of baicalein in combination with either gemcitabine or docetaxel exhibited strong suppression on the migration of PC cells. A further study using transmission electron microscope (TEM), DAPI staining and western blot showed that baicalein induced-apoptosis of PC cells might be via caspase-3/PARP signaling pathway. Notably, combination treatment was able to induce more severe cell apoptosis of PC cells. In conclusion, baicalein exhibited synergistic effects with gemcitabine or docetaxel on the treatment of PC cells. PMID- 29039526 TI - Promoting effects of IL-23 on myocardial ischemia and reperfusion are associated with increased expression of IL-17A and upregulation of the JAK2-STAT3 signaling pathway. AB - Interleukin (IL)-23, as a novel pro-inflammatory cytokine, is important in several inflammatory diseases, including myocardial ischemia and reperfusion (I/R) injury, however, the underlying mechanism remains to be elucidated. The present study was designed to investigate the specific role of IL-23 in myocardial I/R injury, and whether the Janus kinase 2/signal transducer and activator of transcription 3 (JAK2-STAT3) signaling pathway, one of the important downstream signaling pathways of IL-23, and the IL-17A downstream pro inflammatory cytokine, were involved. Anesthetized rats underwent different treatments with adenovirus (Ad) vectors (Ad-GFP, Ad-IL-23, Anti-IL-23 or Ad-IL 23+AG490) and were then subjected to ischemia for 30 min prior to 4 h reperfusion. The effects of the upregulation and downregulation of IL-23 on myocardial injury, inflammatory responses in myocardial tissue, and myocardial apoptosis were measured accordingly. In addition, the levels of phosphorylated (P )JAK2 and P-STAT3 were measured to assess the activity of the JAK2-STAT3 signaling pathway. The results demonstrated that there was an increased expression of IL-23 in the myocardial tissue exposed to myocardial I/R injury (P<0.05). The upregulation of IL-23 significantly increased the infarct size and the expression levels of lactate dehydrogenase and creatine kinase (P<0.05). The upregulation of IL-23 significantly increased inflammatory responses, as reflected by the high expression levels of IL-17A, IL-6, tumor necrosis factor alpha in the myocardial tissues (P<0.05). Furthermore, the upregulation of IL-23 significantly facilitated the decrease in the B-cell lymphoma 2 (Bcl-2)/Bcl-2 associated X protein ratio, and the increases in the myocardial apoptotic index and expression of caspase-3 induced by myocardial I/R (P<0.05). IL-23 also activated the JAK2-STAT3 signaling pathway, upregulating the expression levels of P-JAK2 and P-STAT3 in the myocardial tissues (P<0.05). Treatment with AG490, an inhibitor of JAK2-STAT3, partially attenuated the pro-inflammatory and pro apoptotic effects of IL-23 (P<0.05). The results of the present study suggested that IL-23 aggravated myocardial I/R injury by promoting inflammatory responses and myocardial apoptosis, which may be associated with high expression levels of IL-17A and upregulation of the JAK2-STAT3 signaling pathway. PMID- 29039525 TI - The association between parathyroid hormone 1-34 and the Wnt/beta-catenin signaling pathway in a rat model of osteoarthritis. AB - The aim of the current study was to determine the effect of parathyroid hormone (PTH) 1-34 on cartilage degeneration, and the association between PTH 1-34 and factors associated with the Wnt/beta-catenin pathway following anterior cruciate ligament and medial meniscectomy-induced osteoarthritis (OA) in rats. A total of 64 Sprague-Dawley rats were randomly divided into the following four groups: Sham operated rats with normal saline (NS)-treatment (n=16); anterior cruciate ligament transection with partial medial meniscectomy (ACLT + MMx) rats with NS treatment (n=16); sham-operated rats treated with PTH 1-34 (n=16); and ACLT + MMx rats treated with PTH 1-34 (n=16). PTH (15 ug/kg/day) was administered via subcutaneous injection 5 days per week from the first postoperative day for 2 or 6 weeks. Staining with hematoxylin and eosin and safranin O, and a scoring system modified by Mankin were used to assess the histopathological features of cartilage. The present study detected the expression of PTH 1 receptor (PTH1R), sclerostin, dickkopf Wnt signaling pathway inhibitor 1 (DKK1), beta-catenin and runt-related transcription factor 2 (RUNX2) in cartilage by immunohistochemical analysis to determine the association between PTH 1-34 and factors associated with the Wnt/beta-catenin pathway. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to detect the mRNA expression levels of PTH1R and beta-catenin in cartilage. Histological analysis demonstrated that cartilage degeneration was present post-surgery and gradually increased over time. PTH 1-34 reduced the Mankin scores in ACLT + MMx rats compared with the NS treated ACLT + MMx rats. Immunohistochemistry and RT-qPCR analysis demonstrated that, in cartilage, PTH 1-34 treatment increased the mRNA expression and protein levels of PTH1R and beta-catenin, and decreased protein levels of sclerostin, DKK1 and RUNX2 in ACLT + MMx rats compared with the NS-treated ACLT + MMx group. The present study demonstrated that PTH 1-34 upregulated the Wnt/beta-catenin signaling pathway and that PTH1-34 downregulated RUNX2 through an alternative pathway to the Wnt/beta-catenin signaling pathway, in a rat model of OA. PMID- 29039527 TI - Simvastatin inhibits the expression of stemness-related genes and the metastatic invasion of human cancer cells via destruction of the cytoskeleton. AB - Statins are a class of drugs that inhibit the rate-limiting steps in the cholesterol biosynthesis pathway. They act by inhibiting 3-hydroxy-3 methylglutaryl CoA (HMG-CoA) reductase, which catalyzes the conversion of HMG-CoA to mevalonate. Blocking of mevalonate synthesis leads to inhibition of the farnesylation and geranylgeranylation of several functional proteins, such as RhoA and other small guanosine triphosphate-binding proteins, that are important in maintaining the undifferentiated status of the cells. In the present study, we hypothesized that simvastatin, likely through the inhibition of farnesylation and geranylgeranylation of Rac1, Cd42 and RhoA, induces a destruction/restructuration of the cytoskeleton that decreases mechanical strain transfer to the nuclei, inducing the loss of transmission of regulatory signals from the cytoskeleton to the nucleoskeleton. Although this remains at present a hypothesis and is not easy to define if the de-structuration of the cytoskeleton is a secondary effect of simvastatin treatment or the inhibition of post-translational protein modification have a precise role in the structuration of actin cytoskeleton, we speculate that these signal variations could inhibit the expression of certain stemness genes, which could therefore be considered nucleoskeleton-associated and mechanically regulated genes. On the other hand, the restructuration of the cytoskeleton inhibits the formation of lamellipodia and filopodia, which likely decreases the capability of cancer cells to invade the extracellular matrix, thereby modulating the equilibrium between proliferation, differentiation and metastatic invasion in human cancer cells. On the basis of our results we think that simvastatin, alone or in combination with conventional drugs, may have a possible role in cancer therapy. PMID- 29039528 TI - lncRNA ROR promotes the proliferation of renal cancer and is negatively associated with favorable prognosis. AB - Renal cell carcinoma (RCC) is one of the third most common types of urological cancer worldwide. Long non-coding RNA (lncRNA) ROR has been reported to be important in regulating the malignant activities of different types of cancer, however, the function of lncRNA ROR in RCC remains to be fully elucidated. In order to investigate the function of lncRNA ROR in RCC, reverse transcription quantitative polymerase chain reaction (RT-qPCR) analysis was used to detect the expression of lncRNA ROR in renal cancer tissues and adjacent tissues. Cell proliferation and apoptosis were determined using Cell Counting Kit-8 and apoptosis assays. Western blot analysis was used to measure the expression levels of c-Myc and p53 following the suppression of lncRNA ROR in RCC cell lines. According to the results of the RT-qPCR analysis, lncRNA ROR was found to be expressed at high levels in RCC tissues and cell lines. Patients with RCC exhibiting high expression levels of lncRNA ROR had shorter survival rates, compared with those with low expression levels of lncRNA ROR. The knockdown of lncRNA ROR resulted in a decrease of cell proliferation and increase of apoptosis in vitro. The suppression of lncRNA ROR also induced an increase in the expression of p53 and a decrease in the expression of c-Myc in vitro. Taken together, these results demonstrated that lncRNA ROR was expressed at high levels in RCC tissue and cell lines, and was associated with the proliferation ability of RCC cells. These findings indicate that lncRNA ROR may be a promising therapeutic target for treating RCC. PMID- 29039529 TI - Inhibitory effect of 1-tetradecanol on Helicobacter pylori-induced production of interleukin-8 and vascular endothelial growth factor in gastric epithelial cells. AB - Helicobacter pylori (H. pylori) infection activates pro-inflammatory mediators, including interleukin (IL)-8 and vascular endothelial growth factor (VEGF) in gastric epithelial cells. 1-Tetradecanol (1-TD) has been purified from Dendropanax morbifera Leveille; its physiological activities are poorly understood. The present study assessed whether 1-TD has an effect on H. pylori mediated inflammation in AGS gastric epithelial cells. 1-TD reduced IL-8 production by AGS cells in response to H. pylori in a significant and dose dependent manner, as measured by ELISA. Western blot analysis demonstrated that 1 TD also suppressed the activation of nuclear factor-kappaB, and two mitogen activated protein kinase species (p38 and extracellular signal-regulated kinase 1/2), but not c-Jun N-terminal kinase in H. pylori-infected AGS cells. As predicted, VEGF expression and hypoxia inducible factor-1alpha stabilization induced by H. pylori in AGS cells were inhibited by 1-TD. In addition, 1-TD directly inhibited the growth of H. pylori in a dose-dependent manner, as investigated by measuring the optical density. These findings indicated that 1-TD may be a potential preventive or therapeutic agent for H. pylori-induced gastric inflammation. PMID- 29039530 TI - Hepatitis C virus p7 induces mitochondrial depolarization of isolated liver mitochondria. AB - Hepatitis C virus (HCV)-encoded protein p7 is a viroporin that acts as an ion channel and is indispensable for HCV particle production. Although the main target of HCV p7 is the endoplasmic reticulum, it also targets mitochondria. HCV infected cells show mitochondrial depolarization and ATP depletion; however, the function of HCV p7 in mitochondria is not fully understood. The present study demonstrated that treatment of isolated mouse liver mitochondria with the synthesized HCV p7 protein induced mitochondrial dysfunction. It also demonstrated that HCV p7 targeted isolated mouse liver mitochondria and induced mitochondrial depolarization. In addition, HCV p7 triggered matrix acidification and, ultimately, a decrease in ATP synthesis in isolated mitochondria. These findings indicate that targeting of mitochondria by HCV p7 in infected cells causes mitochondrial dysfunction to support HCV particle production. The present study provided evidence for the role of HCV p7 in mitochondria, and may lead to the development of novel strategies for HCV therapy. PMID- 29039531 TI - Prognostic implications and procoagulant activity of phosphatidylserine exposure of blood cells and microparticles in patients with atrial fibrillation treated with pulmonary vein isolation. AB - The present study aimed to evaluate the procoagulant effects of phosphatidylserine (PS) exposure on blood cells and microparticles (MPs), and examine its role in predicting early recurrence atrial fibrillation (ERAF) in patients with atrial fibrillation (AF) treated with pulmonary vein isolation (PVI). Blood samples were obtained from 40 healthy controls and 56 patients with AF at baseline (prior to PVI), and 0, 1 h, 1 day, 3 days and 7 days following PVI. The exposure of PS (PS+) to blood cells (platelets, erythrocytes and leukocytes) and MPs was detected using flow cytometry. The procoagulant activity was evaluated by coagulation time, and the formation of factor Xa (FXa) and thrombin. In addition, independent factors associated with PS+ blood cells and MPs, and significant predictors of ERAF following PVI were investigated by statistical analyses. The numbers of PS+ blood cells and MPs were significantly increased by PVI (P<0.01). A significant decrease in coagulation time, and increases in FXa and thrombin were exhibited in the PS+ blood cells and MPs from patients with AF treated with PVI, whereas these alterations were inhibited by either lactadherin or anti-tissue factor (P<0.01). The maximum power of the PVI was significantly associated with platelet-derived MPs, and high-sensitivity C reactive protein (hs-CRP) was closely associated with leukocyte-derived MPs and endothelial-derived MPs (EMPs) (P<0.01). In addition, hs-CRP and EMPs >355/ul were identified as independent predictors of ERAF (P<0.05). The increased numbers of PS+ platelets, erythrocytes, leukocytes and MPs contributed to the procoagulant state of AF, and hs-CRP and EMPs were able to predict ERAF following PVI. PMID- 29039532 TI - Puerarin attenuates the daunorubicin-induced apoptosis of H9c2 cells by activating the PI3K/Akt signaling pathway via the inhibition of Ca2+ influx. AB - Puerarin extracted from Radix Puerariae is well known for its pharmacological effects, including antioxidant, anti-inflammatory, neuroprotective and cardioprotective properties. In this study, we aimed to investigate the effects of puerarin on the daunorubicin (DNR)-induced apoptosis of H9c2 cells and to elucidate the potential mechanisms involved. MTT assay and flow cytometry were performed to evaluate cell cytotoxicity and apoptosis, respectively. Western blot analysis was used to assess changes in the expression levels of proteins, including caspase-3, Akt and phosphorylated Akt (p-Akt). Ratiometric imaging of intracellular calcium (Ca2+) using cells loaded with Fura-2 was also carried out. Our results revealed that puerarin pre-treatment protected the H9c2 cells against DNR-induced cytotoxicity by inhibiting cell apoptosis, which was also confirmed by the decrease in the expression of cleaved caspase-3. Additionally, p-Akt activation was associated with the suppressive effects of puerarin. Following pre treatment with puerarin, the extracellular Ca2+ influx was restrained and this resulted in a reduction in the intracellular Ca2+ levels; these effects were abrogated by LY294002 [an inhibitor of phosphatidylinositol 3-kinase (PI3K)]. The inhibition of Ca2+ influx suggested that the PI3K/Akt signaling pathway participated in the suppressive effects of puerarin against H9c2 cell apoptosis. Taken togher, our findings demonstrate that puerarin attenuates the DNR-induced apoptosis of H9c2 cells by activating the PI3K/Akt signaling pathway via the inhibition of Ca2+ influx, suggesting that puerarin may be a potential cardioprotective agent for use in the clinical treatment of cardiomyopathy triggered by DNR. PMID- 29039533 TI - SIRT1 activation by resveratrol reduces brain edema and neuronal apoptosis in an experimental rat subarachnoid hemorrhage model. AB - Early brain injury is considered to be a major risk that is related to the prognosis of subarachnoid hemorrhage (SAH). In SAH model rats, brain edema and apoptosis have been closely related with death rate and neurological function. Sirtuin 1 (SIRT1) was reported to be involved in apoptosis in cerebral ischemia and brain tumor formation through p53 deacetylation. The present study aimed to evaluate the role of SIRT1 in a rat endovascular perforation model of SAH. The SIRT1 activator resveratrol (RES) was administered 48 h prior to SAH induction and the SIRT1 inhibitor Sirtinol (SIR) was used to reverse the effects of RES on SIRT1 expression. Mortality rate, neurological function and brain water content were measured 24 h post-SAH induction. Proteins associated with the blood brain barrier (BBB), apoptosis and SIRT1 in the cortex, such as zona occludens 1 (ZO 1), occludin, claudin-5, SIRT1, p53 and cleaved caspase3 were investigated. mRNA expression of the p53 downstream molecules including Bcl-associated X protein, P53 upregulated modulator of apoptosis, Noxa and BH3 interacting-domain death agonist were also investigated. Neuronal apoptosis was also investigated by immunofluorescence. RES pretreatment reduced the mortality rate and improved neurological function, which was consistent with reduced brain water content and neuronal apoptosis; these effects were partially reversed by co-treatment with SIR. SIRT1 may reduce the brain water content by improvement of dysfunctional BBB permeability, and protein analysis revealed that both ZO-1, occludin and claudin 5 may be involved, and these effects were reversed by SIRT1 inhibition. SIRT1 may also affect apoptosis post-SAH through p53 deacetylation, and the analysis of p53 related downstream pro-apoptotic molecules supported this hypothesis. Localization of neuron specific apoptosis revealed that SIRT1 may regulate neuronal apoptosis following SAH. SIRT1 may also ease brain edema and neuronal protection through BBB improvement and p53 deacetylation. SIRT1 activators such as RES may have the potential to improve the prognosis of patients with SAH and clinical research should be investigated further. PMID- 29039534 TI - Apurinic/apyrimidinic endonuclease 1 (APE1) contributes to resveratrol-induced neuroprotection against oxygen-glucose deprivation and re-oxygenation injury in HT22 cells: Involvement in reducing oxidative DNA damage. AB - Resveratrol, a naturally occurring polyphenolic compound, exhibits a neuroprotective role in models of central nervous system diseases, including cerebral ischemia/reperfusion injury. Apurinic/apyrimidinic endonuclease 1 (APE1) is a multifunctional enzyme that contributes to base excision repair of oxidative DNA damage and redox activation of transcription factors, associated with neuronal survival against hypoxic-ischemic injury. It was hypothesized that resveratrol protects HT22 cells against oxygen-glucose deprivation and re oxygenation (OGD/R)-induced injuries through upregulation of APE1. It was demonstrated that resveratrol pretreatment significantly increased the viability of HT22 cells and decreased the release of lactate dehydrogenase (LDH), accompanied by the upregulation of APE1 mRNA, and protein levels, as well as the activity of APE1 under OGD/R conditions. In addition, resveratrol reversed OGD/R induced oxidative DNA damage as evidenced by the decreases in the levels of 8 hydroxy-2'-deoxyguanosine and APE sites. However, APE1 knockdown using short hairpin RNA sequence targeting APE1 abolished resveratrol-elicited beneficent effects against OGD/R-induced cytotoxicity and oxidative stress. This was indicated by decreased cell viability, superoxide dismutase activity and glutathione levels, and increased LDH release and reactive oxygen species levels. The results of the present study indicate that APE1 contributes to the protective effects of resveratrol against neonatal hypoxic-ischemic brain injuries, and suggest that DNA repair enzymes, including APE1, may be a unique strategy for neuroprotection against this disease. PMID- 29039535 TI - Clinical implications of progranulin in gastric cancer and its regulation via a positive feedback loop involving AKT and ERK signaling pathways. AB - In previous years, progranulin (PGRN) has attracted increasing attention due to its oncogenic roles in several types of tumor. However, the clinical relevance of PGRN in gastric cancer remains to be elucidated. In the present study, 120 retrospective tissue samples were obtained from patients with primary gastric cancer, and the expression of PGRN was detected using immunohistochemistry. The results showed that 71 cases exhibited a high expression of PGRN, which was markedly higher than the 49 cases with a low expression of PGRN. Subsequent chi2 analysis confirmed for the first time, to the best of our knowledge, that a high level of PGRN was positively correlated with lymph node metastasis (P=0.048), lymphatic invasion (P=0.018) and advanced clinical stage (P=0.027). Survival analysis showed that PGRN was positively correlated with poorer overall survival (OS; P=0.0043) and progression-free survival (PFS; P=0.0022). Univariate and multivariate Cox regression analysis showed that PGRN and clinical stage had a significant effect on the OS and PFS of the patients with gastric cancer. In addition, cell experiments confirmed that extracellular PGRN promoted the intracellular expression of PGRN in a concentration-dependent manner in gastric cancer cells. The AKT and extracellular signal-regulated kinase signaling pathways were involved in the upregulation of intracellular PGRN induced by extracellular PGRN in MKN-45 and MGC-803 gastric cancer cells. Taken together, the results of the present study suggested that PGRN may be important in the progression and prognosis of gastric cancer, and that the expression of PGRN was regulated in a positive feedback loop. These findings enhance current knowledge regarding PGRN in tumors. PMID- 29039536 TI - Adipose-derived mesenchymal stem cells attenuate cisplatin-induced apoptosis in epithelial ovarian cancer cells. AB - Environment-mediated drug resistance (EMDR) serves an important role in tumor chemotherapy resistance. Adipose-derived mesenchymal stem cells (ADSC) are an important component of the tumor microenvironment. However, the role of ADSC in EMDR remains unclear. Therefore, in order to clarify whether ADSCs contribute to the cisplatin-mediated apoptosis in epithelial ovarian cancer (EOC), the present study isolated ADSCs from the omentum of women with benign disease and collected the ADSC culture medium as conditioned medium. Subsequently, it was revealed that ADSCs decreased the sensitivity of EOC cells to cisplatin via an MTT assay. In addition, it was revealed that ADSCs may reduce cisplatin-induced apoptosis in EOC cells, as determined by Hoechst staining and flow cytometric analysis. Additionally, a lower level of cleaved caspase-3 was observed, accompanied with decreased intracellular platinum accumulation in EOC cells indirectly co-cultured with ADSCs. In conclusion, the findings of the present study suggested that ADSCs reduced cisplatin-induced apoptosis and the intracellular level of platinum in EOC cells, which in turn resulted in cisplatin resistance. Therefore, ADSCs may serve as a therapeutic target for recurrent EOC. PMID- 29039537 TI - Juglone potentiates TRAIL-induced apoptosis in human melanoma cells via activating the ROS-p38-p53 pathway. AB - Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-based cancer therapy offers promise as TRAIL can kill cancer cells without apparent toxicity towards normal cells. However, intrinsic or acquired resistance to TRAIL inseveral types of cancer cell has become a major challenge in TRAIL-based cancer therapy. Juglone is a natural compound isolated from walnut trees. In the present study, it was demonstrated that juglone sensitized melanoma cells to TRAIL induced cytotoxicity by MTT and crystal violet assays. Flow cytometry analysis indicated that juglone potentiated TRAIL-induced cell death. Western blot assay demonstrated that the expressions of cleaved poly(ADP-ribose) polymerase (PARP) and cleaved caspase 3 were markedly increased in the juglone combined with TRAIL group. Exposure to TRAIL alone did not induce the production of reactive oxygen species (ROS), activation of p38 orincrease of p53 in the TRAIL-resistant melanoma cells, as determined by flow cytometry and western blot analysis. However, exposure to TRAIL in combination with juglone markedly increased the production of ROS, activated p38 and increased p53, compared with the cells treated with either juglone or TRAIL alone. Pretreatment with N-acetyl cysteine, a ROS scavenger, significantly reduced the cytotoxicity of juglone in combination with TRAIL, which further supported that ROS was involved in the juglone-induced sensitization of TRAIL. In conclusion, juglone potentiated TRAIL-induced apoptosis in melanoma cells, and these effects were partially mediated through the ROS-p38-p53 pathway. These findings suggested that juglone may be a potential sensitizer for TRAIL therapy in the treatment of melanoma. PMID- 29039538 TI - Potential lncRNA diagnostic biomarkers for early gastric cancer. AB - Long noncoding RNAs (lncRNAs) serve important functions in many crucial biological processes; however, the effects of lncRNAs in early gastric cancer (EGC) are not entirely clear. The present study aimed to demonstrate the potential of lncRNAs to be used as biomarkers in EGC. Reverse transcription quantitative polymerase chain reaction was used to measure the expression levels of lncRNAs, including X inactive-specific transcript (XIST), Yiya, brain cytoplasmic RNA 1 (BCYRN1), ribosomal RNA processing 1B (RRP1B), KCNQ1 opposite transcript 1 (KCNQ1OT1) and testes development related 1 (TDRG1), in EGC tissues compared with normal adjacent tissues (NATs). XIST, BCYRN1, RRP1B and TDRG1 were identified as differentially expressed in EGC tissues compared with NATs. The specificity and sensitivity of XIST, BCYRN1, RRP1B and TDRG1 were determined by receiver operating characteristic curve analysis. In addition, RRP1B expression was revealed to be significantly correlated with distal metastasis (P=0.020) and tumor-node-metastasis staging (P=0.018), and TDRG1 expression was significantly correlated with lymph node metastasis (P=0.001). Furthermore, BCYRN1, RRP1B and TDRG1 expression levels were compared between EGC tissues and plasma, and the results indicated that there were significant positive correlations of XIST, BCYRN1, RRP1B and TDRG1 expression levels between the EGC tissues and plasma. Therefore, the present study suggested that XIST, BCYRN1, RRP1B and TDRG1 may be served as potential diagnostic biomarkers for EGC. PMID- 29039539 TI - Adenoviral-bone morphogenetic protein-7 and/or doxazosin therapies promote the reversion of fibrosis/cirrhosis in a cirrhotic hamster model. AB - Liver fibrosis occurs in the presence of continuous insults, including toxic or biological agents. Novel treatments must focus on ceasing the progression of cellular damage, promoting the regeneration of the parenchyma and inhibition of the fibrotic process. The present study analyzed the effect of bone morphogenetic protein (BMP)-7 gene therapy with or without co-treatment with doxazosin in a model of liver cirrhosis in hamsters. The serum alanine aminotransferase, aspartate aminotransferase and albumin levels were analyzed spectrophotometrically. Tissue hepatic samples were analyzed by hematoxylin and eosin for parenchymal structure and Sirius red for collagen fiber content. BMP-7 and alpha-smooth muscle actin (SMA)-positive cells were detected by immunohistochemistry. BMP-7 and collagen type I content in hepatic tissue were analyzed by western blotting, and tissue inhibitor of metalloproteinases (TIMP)-2 and matrix metalloproteinase (MMP)-13 expression levels were detected by reverse transcription-quantitative polymerase chain reaction. The present study detected a significant reduction of collagen type I deposits in the group treated with adenoviral-transduction with BMP-7 and doxazosin. In animals with BMP-7 and doxazosin therapy, alpha-SMA-positive cells were 31.7 and 29% significantly decreased compared with animals with placebo, respectively. Adenoviral-BMP-7 transduction and/or doxazosin treatments actively induced decrement in type I collagen deposition via increased MMP-13 and reduced TIMP-2 expression. In conclusion, the adenovirus-BMP-7 gene therapy and the doxazosin therapy are potential candidates for the diminution of fibrosis in the liver, although combination of both therapies does not improve the individual anti-fibrotic effect once cirrhosis is established. PMID- 29039540 TI - Synthesis of regioselectively acylated quercetin analogues with improved antiplatelet activity. AB - The aim of the present study was to report on a complete synthetic approach, namely benzylation-hydrolysis-acylation-hydrogenation, to the synthesis of regioselectively acylated quercetin analogues using low-cost rutin as a starting material. Three quercetin analogues, quercetin-3-O-propionate (Q-pr), quercetin-3 O-butyrate (Q-bu) and quercetin-3-O-valerate (Q-va), containing 3-, 4- and 5 carbon aliphatic acyl chains, respectively, were synthesized and characterized with 1H nuclear magnetic resonance (NMR), 13C NMR and mass spectrometry. Compared with quercetin, all three analogues exhibited improved lipophilicity. The lipophilicity of the analogue increased with increasing acyl chain length. Q-va exhibited the highest lipophilicity among the three analogues, but a lower water solubility compared with quercetin. By contrast, Q-pr and Q-bu exhibited 8.2- and 4.7-fold higher water solubility compared with quercetin, respectively. The in vitro and in vivo studies demonstrated that Q-pr and Q-bu were more effective whereas Q-va was less effective in inhibiting platelet aggregation compared with quercetin. These results indicated that the water solubility and the lipophilicity of the analogues must be improved in order to achieve higher antiplatelet activity, and an optimal acyl chain length is crucial for the synthesized quercetin analogues to be more effective. PMID- 29039541 TI - Modulation of mitogen-activated protein kinase attenuates sepsis-induced acute lung injury in acute respiratory distress syndrome rats. AB - Sepsis is the most important predisposing cause inducing acute respiratory distress syndrome (ARDS); however, the mechanism of sepsis leading to the development of ARDS remains to be elucidated. Suppression of the mitogen activated protein kinase (MAPK) signal by blocking the phosphorylation of Jun N terminal kinase (JNK) and p38 in lung tissues could alleviate acute lung injury induced by sepsis. MAPK signaling may have a crucial role in development of the sepsis-induced acute lung injury. The specific inhibitors of JNK and p38 MAPK, SP600125 and SB203580, were administrated by intragastric injection 4 h before induction of ARDS after cecal ligation and puncture (CLP). Rats were sacrificed at 1, 6 or 24 h after CLP challenge. The histological evaluation, lung water content, and biochemical analysis were performed. The results revealed that the JNK and p38 MAPK inhibitor improved lung permeability, attenuated system inflammation, further alleviated the lung injury induced by sepsis. In conclusion, JNK and p38 MAPK signaling are essential for the development of ARDS following sepsis. Further studies are needed to illuminate the detailed mechanisms of JNK and p38 MAPK signaling in sepsis-induced ARDS. PMID- 29039542 TI - Propofol regulates the expression of TLR4 through miR-21 in human umbilical vein endothelial cells. AB - Propofol (2,6-diisopropylphenol) is one of the most commonly used intravenous anesthetics. Anesthetics can regulate the inflammatory process; however, the mechanism remains to be fully elucidated. The present study aimed to investigate whether and how propofol affects the inflammatory reaction in human umbilical vein endothelial cells (HUVECs). The expression levels of Toll-like receptor 4 (TLR4) and cluster of differentiation 14 (CD14) were determined in HUVECs treated with propofol and lipopolysaccharide (LPS) using western blot and reverse transcription-quantitative polymerase chain reaction analyses. In addition, whether propofol regulated the expression of TLR4 though microRNA (miR)-21 was examined. The results showed that LPS promoted the expression levels of TLR4, CD14 and tumor necrosis factor alpha (TNFalpha), and suppressed the expression of miR-21 in HUVECs. Propofol suppressed the expression levels of TLR4, CD14 and TNFalpha, and upregulated the expression of miR-21 in a concentration-dependent manner. miR-21 downregulated the expression of TLR4 at the mRNA and protein levels, whereas the miR-21 mimic reversed the effect of LPS on the expression of TLR4. In addition, the miR-21 inhibitor inhibited the downregulatory effect of propofol on the expression of TLR4. TargetScan analysis showed that TLR4 was included in the list of targets of miR-21. Fluorescent reporter assays showed that the miR-21 mimic and propofol treatment reduced the fluorescence intensity in cells transfected with a reporter vector containing the wild-type TLR4 3' untranslated region. Taken together, the results of the present study demonstrated that propofol regulated the expression of TLR4 in HUVECs through miR 21. PMID- 29039543 TI - Oxidized low density lipoprotein facilitates tumor necrosis factor-alpha mediated chondrocyte death via autophagy pathway. AB - We aimed to investigate the role of oxidized low density lipoprotein (ox-LDL) in tumor necrosis factor-alpha (TNF-alpha) mediated chondrocyte death and explore the mechanisms. Ten osteoarthritis (OA) and normal control cartilage tissue and synovial fluid (SF) samples were collected, and the expression of lectin-like ox LDL receptor-1 (LOX-1) and ox-LDL level was examined by real time quantitative PCR and enzyme-linked immunosorbent assay (ELISA). An in vitro chondrocyte model was established by the introduction of TNF-alpha and ox-LDL, cell death was analyzed by trypan blue assay and the mechanisms were explored based on the apoptosis related pathway and autophagy pathway. Significantly increased ox-LDL level (70.30+/-17.83 vs. 37.22+/-19.97, P<0.05) in SF sample and LOX-1 expression level (0.51+/-0.10 vs. 0.32+/-0.04, P<0.05) in cartilage tissue was found in OA patients compared to those corresponding samples from control subjects. Ox-LDL could facilitate TNF-alpha mediated chondrocyte death and this effect could be blocked by LOX-1 antibody neutralization. Autophagy inhibition by 3-MA and Atg-5 siRNA could reverse the cell death effect mediated by TNF-alpha and ox-LDL co treatment on chondrocytes. Oxidized low density lipoprotein facilitates tumor necrosis factor-alpha mediated chondrocyte death via its interaction with LOX-1, and autophagy is involved in the mechanisms. PMID- 29039544 TI - Formyl peptide receptor 2 expression predicts poor prognosis and promotes invasion and metastasis in epithelial ovarian cancer. AB - Formyl peptide receptor 2 (FPR2) has been identified as a member of the G protein coupled chemoattractant receptor (GPCR) family and has been implicated as playing a role in both inflammation and cancer development. Epithelial ovarian cancer (EOC) has been suggested to be correlated with both infectious and non-infectious inflammation. To date, the role of FPR2 in EOC remains poorly understood and controversial. In the present study, we aimed to investigate the potential of FPR2 in regulating EOC. We performed immunohistochemistry and RT-qPCR to analyzed expression of FPR2 in EOC tissues and the correlation between FPR2 and EOC clinicopathological characteristics as well as prognosis were also analyzed. To test the role of FPR2 in EOC cell migration, we established FPR2-knockdown SKOV3 cells and performed wound-healing, Transwell and angiogenesis assays to detect the metastatic potential of these EOC cells. Our studies found that FPR2 was overexpressed in EOC tissues and was positively correlated with EOC clinicopathological characteristics including the International Federation of Gynecology and Obstetrics (FIGO) stage, histological grade and ovarian cancer type. Survival analyses suggested that FPR2 overexpression indicated the poorer prognosis of EOC patients and FPR2 may act as an independent risk factor for EOC prognosis. FPR2 knockdown decreased the migration potential of the ovarian cancer cells. Moreover, serum amyloid A (SAA) may stimulate the migration of SKOV3 cells through FPR2. The present study suggested that FPR2 promoted the invasion and metastasis of EOC and it could be a prognostic marker for EOC. PMID- 29039545 TI - Grape seed proanthocyanidins protect cardiomyocytes against hypoxia/reoxygenation injury by attenuating endoplasmic reticulum stress through PERK/eIF2alpha pathway. AB - The aim of the present study was to observe the protective effect of grape seed proanthocyanidins (GSPs) against endoplasmic reticulum (ER) stress-mediated apoptosis caused by hypoxia/reoxygenation (H/R) injury in H9C2 cardiomyocytes along with its potential mechanisms. H9C2 cardiomyocytes underwent hypoxia for 3 h followed by reoxygenation for 3 h. Different doses of GSPs (50, 100 and 200 ug/ml) were administered 30 min before hypoxia. Cell viability was assessed, as well as lactic dehydrogenase (LDH) activity, cell apoptosis rate, expression levels of glucose-regulated protein 78 (GRP78), C/EBP-homologous protein (CHOP), protein kinase RNA-like ER kinase (PERK), and eukaryotic translation initiation factor-2 (eIF2alpha) mRNA and protein. The results revealed that GSPs improved cell viability, reduced LDH activity and reduced the apoptosis rate in cells subjected to H/R, and that the protective effect was most significant when 100 ug/ml in GSPs was administered. GSPs treatment also decreased mRNA and protein expression of GRP78, CHOP, eIF2alpha and the level of the phosphorylated form of PERK. Furthermore, GSPs displayed a similar protective effect to that of established ER stress inhibitor 4-phenyl butyric acid. In conclusion, the findings of this study suggest that GSPs may protect H9C2 cardiomyocytes from H/R injury by decreasing ER stress-mediated apoptosis through the suppression of the PERK/eIF2alpha signaling pathway. PMID- 29039546 TI - Antiproliferative effects of TSA, PXD-101 and MS-275 in A2780 and MCF7 cells: Acetylated histone H4 and acetylated tubulin as markers for HDACi potency and selectivity. AB - Inhibition of histone deacetylase enzymes (HDACs) has been well documented as an attractive target for the development of chemotherapeutic drugs. The present study investigated the effects of two prototype hydroxamic acid HDAC inhibitors, namely Trichostatin A (TSA) and Belinostat (PXD-101) and the benzamide Entinostat (MS-275) in A2780 ovarian carcinoma and MCF7 breast adenocarcinoma cells. The three HDACi inhibited the proliferation of A2780 and MCF7 cells at comparable levels, below the uM range. Enzyme inhibition assays in a cell-free system showed that TSA was the most potent inhibitor of total HDAC enzyme activity followed by PXD-101 and MS-275. Incubation of A2780 and MCF7 cells with the hydroxamates TSA and PXD-101 for 24 h resulted in a dramatic increase of acetylated tubulin induction (up to 30-fold for TSA). In contrast to acetylated tubulin, western blot analysis and flow cytometry indicated that the induction of acetylated histone H4 was considerably smaller. The benzamide MS-275 exhibited nearly a 2 fold induction of acetylated histone H4 and an even smaller induction of acetylated tubulin in A2780 and MCF7 cells. Taken together, these data suggest that although the three HDACi were equipotent in inhibiting proliferation of MCF7 and A2780 cells, only the benzamide MS-275 did not induce acetylated tubulin expression, a marker of class IIb HDACs. PMID- 29039547 TI - Frequency and distribution of CD4+CXCR5+ follicular B helper T cells within involved tissues in IgG4-related ophthalmic disease. AB - Immonoglobulin G4-related ophthalmic disease (IgG4-ROD) is a IgG4-RD and exhibits two main characteristics: Fibrosis that is not necessarily marked histopathologically; and frequent formation of germinal centers (GCs). Follicular B helper T (Tfh) cells are now recognized as the true helper cells for B cells in antibody responses. In the present study, the profile and distribution of Tfh cells in involved tissues from patients with IgG4-ROD was compared to those of type 1 autoimmune pancreatitis (AIP) and patients with IgG4-related lymphadenopathy (IgG4-RL). A total of 7 patients with IgG4-ROD, 7 patients with type 1 AIP or IgG4-RL and 7 IgG4-negative controls were evaluated. The expression of Tfh-cell immunological proteins, the inducible T-cell costimulator, B-cell lymphoma 6 protein, C-X-C chemokine receptor type 5 (CXCR5) and interleukin-21 (IL-21) in affected tissues was analyzed using immunohistochemical staining and dual immunofluorescence. It was demonstrated that patients with IgG4-RD exhibited a significantly increased number of CD4+CXCR5+ Tfh cells compared with the IgG4 negative controls. Furthermore, CD4+CXCR5+ Tfh cells were detected in and outside of GCs in patients with IgG4-ROD and IgG4-RLF, whereas CD4+CXCR5+ Tfh cells were randomly distributed in areas demonstrating type 1 AIP. Fewer CD4+CXCR5+ Tfh cells were observed in patients with type 1 AIP compared with patients with IgG4 ROD and IgG4-RL. In addition, increased expression of IL-21 was observed in patients with IgG4-ROD and IgG4-RL compared with type 1 AIP. IL-21 expression was positively correlated with the IgG4/IgG ratio in immunohistochemically-positive cells. The results of the present study indicate that Tfh cells are involved in the histopathological pathogenesis of IgG4-RD and may serve a different role in IgG4-ROD and type 1 AIP. Tfh cells may serve a direct role in the IL-21-mediated pathogenesis of IgG4-ROD. PMID- 29039548 TI - [Corrigendum] Farnesoid X receptor deletion improves cardiac function, structure and remodeling following myocardial infarction in mice. AB - Following the publication of this article, an interested reader drew to our attention that we had incorrectly reported (in the Materials and methods section, 'Western blot analysis', on p. 674) that the anti-farnesoid X receptor (FXR) antibody of Cell Signalling Technology, Inc., cat. no. #12295, had been used in this study to probe for FXR. In fact, the antibodies used in the above-mentioned study were a gift from the group of Dr Xin-Liang Ma at Thomas Jefferson University (Philadelphia, PA, USA), as referenced in the following article: [Pul J, Yuan A, Shan P, Gao E, Wang X, Wang Y, Lau WB, Koch W, Xin-Ma XL and He B: Cardiomyocyte-expressed farnesoid-X-receptor is a novel apoptosis mediator and contributes to myocardial ischaemia/reperfusion injury. Eur Heart J 34: 1834 1845, 2013]. The antibody that was used for the western blotting analysis was raised against the C-terminus of FXR (C-20; cat. no. sc-1204, Santa Cruz Biotechnology, San Diego, CA, USA). We sincerely apologize for this mistake, and thank the reader of our article who drew this matter to our attention. The error made in our incorrect referencing of the antibody did not affect the conclusions reported in this study. Furthermore, we regret the inconvenience that this mistake caused. [the original article was published in the Molecular Medicine Reports 16: 673-679, 2017; DOI: 10.3892/mmr.2017.6643]. PMID- 29039549 TI - Downregulation of caspase-3 alleviates Mycoplasma pneumoniae-induced apoptosis in alveolar epithelial cells. AB - Mycoplasma pneumoniae (M. pneumoniae) infection is closely associated with pneumonia in children. Apoptosis of alveolar epithelial cells is involved in the development of pneumonia in children. The present study aimed to examine how caspase-3 influences apoptosis rates in M. pneumoniae-infected alveolar epithelial cells. A549 alveolar epithelial cells were treated with M. pneumoniae, and cells and culture supernatant were collected at different time points. Alterations in apoptosis rates and caspase-3 mRNA and protein levels were measured for each treatment group. Cell apoptosis was detected using flow cytometry and TUNEL assay, and cell proliferation was detected using Cell Counting Kit-8 assay. Caspase-3 expression in A549 cells was inhibited via small interfering RNA (siRNA) knockdown and relative alterations in mRNA and protein levels and apoptosis rates were measured. Cytokine levels were measured using ELISA assay. Apoptosis rates of alveolar epithelial cells increased with prolonged exposure to M. pneumoniae (P<0.05). M. pneumoniae infection increased interleukin (IL)-4, IL-6 and IL-13 levels and reduced IL-10 levels. Caspase-3 was upregulated, whereas B cell lymphoma (Bcl)-2 was downregulated upon M. pneumoniae exposure for 24 h (P<0.05). Following 12 and 24 h of treatment, caspase-3 levels in the siRNA-treated cells were decreased compared with control group (P<0.05). M. pneumoniae also significantly altered caspase-3 and Bcl-2 protein expression. M. pneumoniae promoted apoptosis in alveolar epithelial cells via activation of the external death receptor pathway. Therefore, M. pneumoniae infection may affect the development of pneumonia in children by regulating caspase-3 expression and promoting apoptosis. PMID- 29039550 TI - Autophagy is essential for flavopiridol-induced cytotoxicity against MCF-7 breast cancer cells. AB - Flavopiridol (FP) exerts antitumoral effects by triggering tumor cell cycle arrest and cytotoxicity in human breast cancer cell lines. The potent antitumor activity of FP is through its inhibition of cyclin-dependent kinases; however, this may not be the only mechanism of action. The present study aimed to investigate whether FP is able to induce autophagy and to examine the effects of autophagy on cell death in FP-treated MCF-7 human breast cancer cells. MCF-7 cells were treated with either FP alone or FP in combination with chloroquine (CQ). Expression levels of autophagy-related protein LC3B-II and p62/sequestosome 1 (SQSTM1) were used to monitor autophagic flux. MCF-7 cells were transfected with autophagy-related 5 (ATG5) small interfering (si)RNA to block autophagy. Cell viability and cell cycle status were determined. Following incubation with FP, MCF-7 cells exhibited significantly higher autophagy compared with untreated control cells, and the level of autophagy is comparable with cells under rapamycin induction, which was verified by immunodetection of LC3B-II and p62/SQSTM1 expression and inhibition by CQ. The addition of CQ treatment or ATG5 siRNA transfection against autophagy components attenuated the cytotoxic effects of FP treatment of MCF-7 cells. Furthermore, this autophagy inhibition did not impair the FP-induced cell cycle arrest. These results revealed that autophagy may be involved in FP-induced MCF-7 cell death and autophagy inhibition enhanced the tumor cell pro-survival ability. It is possibly that potential autophagy regulatory drugs may be used as a chemotherapy adjuvant. PMID- 29039551 TI - Upregulation of Rho7 in the temporal lobe tissue of humans with intractable epilepsy. AB - Patients with intractable epilepsy (IE) exhibit an increased risk of premature death, psychosocial dysfunction and decreasing quality of life. The present study aimed to investigate the alteration in the expression of Rho7 in brain tissue from patients with IE, and to examine the association between Rho7 protein expression and IE. Temporal lobe samples were collected from the temporal lobes of 33 patients with IE patients and 10 age- and gender-matched histologically healthy controls. Immunohistochemical staining was conducted to assess the number of Rho7-positive cells. In addition, double-label immunofluorescent staining was performed to examine the cellular localization of Rho7. The protein expression of Rho7 was examined using western blotting. Marked immunoreactivity for Rho7 was detected in the IE group, while faint and scattered immunoreactive staining was observed in the control group. The count of Rho7 positive cells in the IE patients was significantly increased compared with the control subjects (23.47+/ 3.9% vs. 12.09+/-1.05%; P<0.01). Double-label immunofluorescent staining indicated that Rho7 was primarily expressed in the cell membrane and cytoplasm, and colocalized with neuron-specific enolase. Western blot analysis demonstrated that the expression of Rho7 in the IE group was significantly increased compared with the control group (0.41+/-0.031 vs. 0.25+/-0.025; P<0.01). The results of the present study demonstrated that upregulation of Rho7 immunoreactivity occurs in the brains of patients with IE, suggesting that Rho7 may be associated with the progression of IE or act as a potential treatment target. PMID- 29039552 TI - Prospective lncRNA-miRNA-mRNA regulatory network of long non-coding RNA LINC00968 in non-small cell lung cancer A549 cells: A miRNA microarray and bioinformatics investigation. AB - Accumulating evidence suggests that the dysregulation of long non-coding RNAs (lncRNAs) serves vital roles in the incidence and progression of lung cancer. However, the molecular mechanisms of LINC00968, a recently identified lncRNA, remain unknown. The objective of present study was to investigate the role of a prospective lncRNA-miRNA-mRNA network regulated by LINC00968 in non-small cell lung cancer cells. Following the transfection of lentiviruses carrying LINC00968 into A549 cells, the microRNA (miRNA) expression profile of the cells in response to the overexpression of LINC00968 was detected using an miRNA microarray. Five differentially expressed miRNAs (DEMs) with LINC00968 overexpression were obtained, including miR-9-3p, miR-22-5p, miR-668-3p, miR-3675-3p and miR-4536-3p. Five target prediction algorithms and three target validation algorithms were used to obtain 1,888 prospective target genes of the five DEMs. The result of Gene Ontology analysis suggested that these five DEMs were involved in complex cellular pathways, which included intracellular transport, organelle lumen and nucleotide binding. Furthermore, analysis of Kyoto Encyclopedia of Genes and Genomes pathways indicated that the five DEMs were important regulators in the adherens junction and focal adhesion. An lncRNA-miRNA-mRNA regulatory network and a protein-protein interaction network were then constructed. Eventually, a prospective lncRNA-miRNA-mRNA regulatory network of LINC00968, three miRNAs (miR 9, miR-22 and miR-4536) and two genes (polo-like kinase 1 and exportin-1) was obtained following validation in the Cancer Genome Atlas database. These results may provide novel insights to support future research into lncRNA in lung cancer. PMID- 29039553 TI - Proteomic analysis of serum deprivation in tongue squamous cell carcinoma. AB - The occurrence of tongue squamous cell carcinoma (TSCC) is closely correlated with serum components; however, the detailed mechanism remains to be fully elucidated. Proteomic analysis contributed to the discovery of potential biomarkers and provided an insight into TSCC at a molecular level. The present study investigated the effect of serum deprivation on the Tca-8113 TSCC cell line through protein profiling using two-dimensional gel electrophoresis and mass spectrometry, with the aim of improving TSCC diagnosis. The results showed that the Tca-8113 cells maintained proliferative capacity and resisted apoptosis following serum deprivation. A total of 43 proteins were upregulated and 45 were downregulated following serum deprivation for 24 h, compared with untreated controls (0 h). The upregulated caspase-7, heat shock protein 27 and Annexin A1, and the downregulated peroxiredoxin-6 and heat shock protein 70, were selected for verification using reverse transcription-polymerase chain reaction analysis following serum deprivation for 16 h. The results indicated that reactive oxygen species may be important in serum deprivation-induced oxidative stress. PMID- 29039554 TI - MicroRNA-23a-3p inhibitor decreases osteonecrosis incidence in a rat model. AB - The mechanism of steroid-associated femoral head necrosis remains unclear. The present study investigated the role of microRNA-23a-3p (miR-23a-3p) in the incidence of osteonecrosis in a rat model. An miR-23a-3p mimic, an inhibitor and a negative control were transfected into bone mesenchymal stem cells using a lentiviral vector, and then injected into the steroid-induced femoral head necrosis model. Osteonecrosis incidence was assessed by micro computed tomography and histopathology. Low-density lipoprotein receptor-related protein 5 (LRP-5) expression was assessed by immunohistochemistry. The results demonstrated the incidence of osteonecrosis decreased in the miR-23a-3p inhibitor group compared with the miR-23a-3p mimic group (18.2% vs. 75%; P<0.05). The ratio of bone volume/total volume and trabecular thickness were significantly increased in the miR-23a-3p inhibitor group compared with the miR-23a mimic group. The expression level of LRP-5 was higher in the miR-23a-3p inhibitor group. The present study indicated that miR may provide a novel and alternative approach for understanding the mechanism underlying steroid-associated necrosis of the femoral head. PMID- 29039555 TI - miR-363 inhibits the growth, migration and invasion of hepatocellular carcinoma cells by regulating E2F3. AB - A growing body of evidence suggests that microRNA-363 (miR-363) plays crucial roles in tumor progression, development and metastasis, and confer resistance to chemotherapeutic drugs in several types of cancers. However, the biological function and underlying molecular mechanism of miR-363 in hepatocellular carcinoma (HCC) have not been fully elucidated. In the present study, we investigated the biological function and mechanism of miR-363 in the regulation of HCC progression. We found that miR-363 was downregulated in HCC cell lines and tissues, and a low expression level of miR-363 was associated with tumor differentiation, TNM stage and lymph node metastasis. Forced overexpression of miR-363 significantly suppressed HCC cell proliferation, migration, invasion and decreased epithelial-mesenchymal transition (EMT) in vitro, as well as inhibited tumor growth in vivo. Analysis of the underlying mechanisms revealed that miR-363 regulated E2F transcription factor 3 (E2F3) expression by directly targeting its 3' untranslated region. E2F3 overexpression partially attenuated the tumor suppressive effects of miR-363 in HCC cells. In addition, E2F3 expression was upregulated in the HCC tissues, and was negatively correlated with the level of miR-363 in human HCC tissues. Taken together, these results revealed that miR-363 is involved in HCC growth and invasion and functions as a tumor suppressor by negatively regulating E2F3. PMID- 29039556 TI - Huaier extract enhances the treatment efficacy of paclitaxel in breast cancer cells via the NF-kappaB/IkappaBalpha pathway. AB - Breast cancer is considered as the most common malignant disease in women. Huaier extract, a type of traditional Chinese medicine, has been found to have antitumor activity. In the present study, we aimed to investigate whether the combined treatments of paclitaxel and Huaier extract may improve treatment efficacy in breast cancer cells. Human breast cancer cell lines MCF-7 and MDA-MB-231 were used to evaluate the antitumor efficacy of Huaier extract and paclitaxel both in vitro and in vivo. Using proliferation assays and flow cytometry, we found that both Huaier extract and paclitaxel decreased cell viability and induced cell apoptosis in a time- and dose-dependent manner. The combined treatments were more effective than monotherapy. Huaier extract induced cycle arrest in the G0/G1 phase, and paclitaxel arrested the cell cycle in the G2/M phase. Furthermore, the results of real-time PCR and western blotting revealed that Huaier extract decreased p65 and c-Met expression and increased IkappaBalpha expression, while paclitaxel increased p65 expression and reduced IkappaBalpha and c-Met expression. Consistent with the in vitro results, both Huaier extract and paclitaxel exerted a significant inhibitory effect on xenografted tumor growth, and the combined therapies revealed the most marked inhibitory effect. Collectively, our results indicated that Huaier extract increased the antitumor effect of paclitaxel therapy in breast cancer cells. The molecular mechanisms may be involved in the inhibition of the NF-kappaB pathway and c-Met expression. PMID- 29039557 TI - MicroRNA-663 suppresses the proliferation and invasion of colorectal cancer cells by directly targeting FSCN1. AB - Colorectal cancer (CRC) is the most frequently diagnosed malignancy of the gastrointestinal tract. The dysregulation of microRNAs (miRNAs/miRs) has been reported in the majority of types of human cancer, and is correlated with tumorigenesis and tumor development. Abnormal expression of miR-663 has been observed in various types of human cancer. However, little is known about its role in CRC. Therefore, the aim of the present study was to clarify the expression and potential role of miR-663, and its underlying molecular mechanism in CRC. It was observed that miR-663 was markedly downregulated in CRC tissues and cell lines. Decreased miR-663 expression levels in CRC tissues were correlated with tumor, node, metastasis stage and lymph node metastasis. Functional assays revealed that upregulation of miR-663 inhibited cell proliferation and invasion in CRC. Further molecular mechanism assays demonstrated the fascin (FSCN1) was a target gene of miR-663. In addition, FSCN1 was increased and negatively correlated with miR-663 expression in CRC tissues. FSCN1 underexpression mimicked the tumor suppressive functions induced by miR-663 overexpression on CRC cell proliferation and invasion. Collectively, the present study presented evidence that miR-663 may act as a tumor suppressor in CRC by directly targeting FSCN1, which may lead to a potential therapeutic strategy focusing on miR-663 and FSCN1 for patients with this disease. PMID- 29039558 TI - Insulin in combination with cisplatin induces the apoptosis of ovarian cancer cells via p53 and JNK activation. AB - Drug resistance is an obstacle to effective treatment of ovarian cancer. There have been substantial evidences supporting the association between diabetes and the sensitivity to chemotherapy. Insulin (INS) is believed to be the strongest, most lasting hypoglycemic drug. Therefore, the present study aimed to elucidate whether insulin could facilitate the anti-proliferative activities of cisplatin (cis-diamminedichloroplatinum, DDP) in the A2780 ovarian cancer cell line. The inhibitory effects of DPP with/without INS on the growth of A2780 cells was measured by MTT assay. The cell cycle stages and levels of apoptosis were determined by flow cytometry. The amounts of signaling elements involved in the regulation of were examined using western blotting and reverse transcription quantitative polymerase chain reaction analysis. The results indicated that INS pre-treatment enhanced the inhibitory effect of DDP on the proliferation of A2780 cells, and facilitated the apoptosis induced by DDP. INS-DDP treatment led to a marked decrease in the percentage of G0/G1 phase cells, but a corresponding increase in the proportion of S phase cells. Furthermore, A2780 cells pretreated with INS followed by DDP upregulated the protein expression level of phosphorylated c-Jun N-terminal kinase (JNK), which resulted in a substantial increase in the expression levels of p53 mRNA and protein, compared with DDP administration alone. In conclusion, the combination of INS and DDP facilitated the apoptosis of A2780 cells, which may be associated with the activation of the JNK signaling pathway and consequently the involvement of p53 at both mRNA and protein expression levels. These results may be useful in furthering our understanding of the mechanisms involved in the chemotherapeutic treatment of ovarian cancer. PMID- 29039559 TI - Matrine in association with FD-2 stimulates F508del-cystic fibrosis transmembrane conductance regulator activity in the presence of corrector VX809. AB - Cystic fibrosis is caused by mutations of the cystic fibrosis transmembrane conductance regulator (CFTR) gene, and the predominant mutation is termed Phe508del (F508del). Therapy for F508del-CFTR patients is based on the use of Orkambi(r), a combination of VX809 and VX770. However, though Orkambi leads to an improvement in the lung function of patients, a progressive reduction in its efficacy has been observed. In order to overcome this effect, the aim of the present study was to investigate the role of matrine and the in-house compound FD 2 in increasing the action of VX809 and VX770. Fischer rat thyroid cells overexpressing F508del-CFTR were treated with matrine, VX809 (corrector) and/or with a number of potentiators (VX770, FD-1 and FD-2). The results demonstrated that matrine was able to stimulate CFTR activity and, in association with FD-2, increased the functionality of the channel in the presence of VX809. Based on these results, it may be hypothesized that FD-2 may be a novel and more effective potentiator compared with VX770. PMID- 29039560 TI - 20-Hydroxyeicosatetraenoic acid regulates the expression of Nedd4-2 in kidney and liver through a neddylation modification pathway. AB - The present study aimed to test whether 20-hydroxyeicosatetraenoic acid (20-HETE) affected neddylation modification of E3-ligase Nedd4-2 (neural precursor cell expressed, developmentally down-regulated 4-like, E3 ubiquitin protein ligase). A cytochrome P450 family 4 subfamily F member 2 (CYP4F2) transgenic mouse model that overproduces 20-HETE in the kidney and the liver was used in the present study. Transgenic mice with high salt intake exhibited increased activation of Nedd4-2-mediated ubiquitin-proteasome pathway. Nedd4-2 expression is increased in the kidney and decreased in the liver of transgenic mice compared with wild-type mice. Subsequently, co-immunoprecipitation analysis indicated that Nedd4-2 was modified by Nedd8, and the level of neddylation on Nedd4-2 was reduced in the kidney and increased in the liver of transgenic mice compared with controls. In addition, sentrin-specific protease 8 (Senp8), a deneddylation enzyme, is expressed higher in the kidney and lower in the liver of transgenic mice compared with wild-type controls. The function of 20-HETE on modulation of Nedd4-2 were also confirmed in mouse M1 kidney and mouse NCTC1469 liver cell lines, and the function was restored by neddylation inhibitor MLN4924 Data from the present study demonstrated that 20-HETE upregulated the expression of Nedd4-2 in the kidney and downregulated expression in the liver through the neddylation modification pathway, at least partly, depending on the effects on Senp8 deneddylation. PMID- 29039561 TI - Hovenia dulcis Thunb. and its active compound ampelopsin inhibit angiogenesis through suppression of VEGFR2 signaling and HIF-1alpha expression. AB - Specific inhibition of angiogenesis has been considered a powerful strategy for the treatment of cancer and other angiogenesis-related human diseases. Hovenia dulcis Thunb., Japanese raisin tree or Oriental raisin tree, is a hardy tree found in Asia, Eastern China and Korea and has been known to possess various biological activities, including antifatigue, antidiabetic, neuroprotective and hepatoprotective activity. In the present study, for the first time, we evaluated whether a 100% ethanol extract of Hovenia dulcis Thunb. (HDT) inhibits the angiogenesis of human umbilical vein endothelial cells (HUVECs) using in vitro angiogenesis assays. HDT suppressed vascular endothelial growth factor (VEGF) induced proliferation, migration, invasion and tube formation of HUVECs at subtoxic doses. In addition, HDT significantly inhibited in vivo angiogenesis of the chorioallantoic membrane from growing chick embryos without exhibiting cytotoxicity. Furthermore, HDT downregulated not only VEGF receptor 2 (VEGFR2) signaling in HUVECs, but also hypoxia-inducible factor (HIF)-1alpha expression in hepatocarcinoma cell line HepG2. Ampelopsin is a bioactive flavanonol found in Hovenia dulcis Thunb. Our data showed that ampelopsin inhibited angiogenesis with no cytotoxicity by suppressing both VEGFR2 signaling and HIF-1alpha expression. These results suggest that Hovenia dulcis Thunb. and its active compound ampelopsin exhibit potent antiangiogenic activities and therefore could be valuable for the prevention and treatment of angiogenesis-related diseases including cancer. PMID- 29039562 TI - Downregulation of ZNF278 arrests the cell cycle and decreases the proliferation of colorectal cancer cells via inhibition of the ERK/MAPK pathway. AB - Zinc finger protein 278 is a zinc finger transcription factor encoded on the 22q12.2 chromosome. Previous studies revealed that ZNF278 expression was significantly upregulated in colorectal cancer (CRC) tissue compared to adjacent non-tumor tissue. However, the expression and specific roles of ZNF278 in CRC remain unknown. ZNF278 expression was knocked down using specific siRNAs, which was confirmed by western blotting, and the effects of ZNF278 siRNAs on CRC cell proliferation were investigated. In addition, the effects of ZNF278 overexpression were confirmed by western blotting and cell proliferation assay. Correlations between ZNF278 and the ERK/MAPK pathway were also detected by western blotting. We found that ZNF278 knockdown significantly induced cell cycle arrest, resulting in cyclin D1/E1 downregulation and p21 upregulation. Moreover, we demonstrated that downregulation of ZNF278 decreased the proliferation of CRC cells via inhibition of the extracellular signal-regulated kinase/mitogen activated protein kinase (ERK/MAPK) pathway for the first time. In conclusion, ZNF278 played a prominent role in the pathogenesis of CRC, and promoted CRC cell proliferation via the ERK/MAPK pathway, suggesting that it may act as a potential target in the diagnosis or treatment of CRC. PMID- 29039563 TI - Inhibition of human lung cancer proliferation through targeting stromal fibroblasts by dihydromyricetin. AB - In the present study, the effects of dihydromyricetin on the proliferative potential of fibroblasts and lung carcinoma cells were investigated. Markedly higher expression levels of smooth muscle actin and platelet derived growth factors (PDGFs) were observed in the fibroblasts using reverse transcription polymerase chain reaction analysis. The expression levels of PDGF-A and PDGF-B were also higher in the lung cancer cells. Western blot analysis revealed higher expression levels of the receptor for platelet-derived growth factor (PDGFRbeta) in the lysates from fibroblasts obtained from normal tissues and carcinoma tissues. Treatment of the fibroblasts with dihydromyricetin inhibited the expression of PDGFRbeta when treated with a 10 uM concentration for 48 h. Treatment of the fibroblasts with a 10 uM concentration of dihydromyricetin for 48 h led to complete inhibition of the activation of extracellular signal regulated kinase (Erk)1/2 and Akt. The results of an MTT assay showed that treatment of the fibroblasts with dihydromyricetin significantly reduced the PDGF mediated increase in the rate of proliferation. The rate of proliferation of the A549 lung cancer cells cultured with fibroblasts was markedly increased, compared with that of the A549 cells cultured alone. However, dihydromyricetin significantly (P<0.05) inhibited the proliferation rate of the A549 cells cultured with fibroblasts, compared with the untreated cultures. The proliferation rates of the A549 cancer cells, A549 cells cultured with fibroblasts, and A549 cells cultured with fibroblasts and treated with dihydromyricetin were found to be were 78.45, 98.45 and 21.37%, respectively. Dihydromyricetin inhibited the proliferative potential of fibroblasts in the lung cancer cells through targeting the activation of Erk1/2 and Akt. Therefore, there is scope for dihydromyricetin to be evaluated further for the treatment of lung cancer. PMID- 29039564 TI - Evaluation of microRNA-203 in bone metastasis of patients with non-small cell lung cancer through TGF-beta/SMAD2 expression. AB - This study investigated the regulatory effect of microRNA-203 on bone metastasis of non-small cell lung cancer (NSCLC). Quantitative real-time PCR was used to examine microRNA-203 in tissue specimens of bone metastasis of patients with NSCLC. In bone metastasis of patients with NSCLC, microRNA-203 expression was decreased, compared with control group. We also surveyed overall survival (OS) and disease-free survival (DFS), microRNA-203 high expression in bone metastasis of patients with NSCLC was higher than in those with microRNA-203 low expression. Furthermore, we overexpressed microRNA-203 with microRNA-203 mimics and observed the effects of microRNA-203 overexpression on cell proliferation, apoptosis and migration of NSCLC cells. We found that microRNA-203 overexpression reduced cell proliferation and migration, induced apoptosis, Bax, caspase-3 and p53 protein expressions, repressed p-SMAD2 and TGF-beta1 protein expression of NSCLC cells. Knockdown of TGF-beta1 by LY364947 (10 nM) reduced cell proliferation and migration, induced apoptosis, expression of Bax, caspase-3 and p53 protein and suppressed TGF-beta1 and p-SMAD2 protein expression of NSCLC cells transfected with miR-124 mimics. In conclusion, our data suggest that microRNA-203/TGF beta/SMAD2 expression plays an important role as a tumor suppressor gene in bone metastasis of patients with NSCLC, and may reveal novel perspectives for clinical treatments against bone metastasis of patients with NSCLC. PMID- 29039565 TI - Hydrogen sulfide regulates bone remodeling and promotes orthodontic tooth movement. AB - Hydrogen sulfide (H2S) is a gas signaling molecule that has multiple influences on physiological and pathological processes in the mammalian body, including vasodilation, neurotransmission, inflammation, hypoxia sensing and bone remodeling. Our previous studies suggested that H2S might be involved in the periodontal tissue remodeling during the orthodontic tooth movement (OTM) via increasing periodontal ligament cell differentiation, tissue mineralization, bone formation and collagen synthesis. The aim of the present study was to investigate the effects of H2S on alveolar bone remodeling that is associated with tooth movement. Experiments were performed in an OTM mouse model. Sodium hydrosulfide (NaHS), which is a donor of H2S and DL-propargylglycine (PAG) and a cystathionine gamma-lyase (CSE) inhibitor, which could also decrease H2S expression, were administered intraperitoneally and respectively. A total of 60 male C57BL6/J mice were divided into 4 groups; Control, NaHS, PAG and combination (PAG+NaHS). The rate of OTM and the bone mineral density (BMD) of alveolar bone were scanned and measured by micro-computed tomography (micro-CT). The number of osteoclasts and expression of the tumor necrosis factor ligand superfamily member-11 (RANKL), alkaline phosphatase (ALP), osteocalcin (OCN) and osteoprotegerin (OPG) in alveolar bone were accessed to evaluate the osteoclastic activity and osteogenesis with histochemistry of tartrate-resistant acid phosphatase staining, immunohistochemistry and reverse transcription-quantitative polymerase chain reaction. In the alveolar bone, NaHS increased the OTM and decreased the BMD, respectively. PAG significantly decrease OTM and increased the BMD. NaHS combined with PAG rescued the PAG-induced changes in the OTM and the BMD. Additionally, the number of osteoclasts, the expression of RANKL, ALP, OCN and the ratio of RANKL/OPG were significantly up-regulated in the NaHS group. In contrast, PAG down-regulated the number of osteoclasts, the expression of RANKL, ALP, OCN and the ratio of RANKL/OPG. These findings suggested that H2S might facilitate the OTM by enhancing alveolar bone remodeling as a result of an increased osteoclastic activity and osteogenesis. PMID- 29039566 TI - MicroRNA-217 inhibits cell proliferation, invasion and migration by targeting Tpd52l2 in human pancreatic adenocarcinoma. AB - MicroRNAs (miRNAs) play important roles in the regulation of various tumor biological processes including proliferation and apoptosis. miR-217 has been implicated in many types of cancer, whereas its expression and potential biological function in human pancreatic adenocarcinoma (HPAC) remain unclear. We aimed to investigate the clinical significance of miR-217 in patients with pancreatic carcinoma and its role and underlying molecular mechanism in HPAC. We collected 15 pairs of pancreatic cancer and normal pancreas tissues to evaluate the expression of miR-217 and tumor protein D52-like 2 (Tpd52l2). Then, we transfected AsPC-1 cells with miR-217 mimics or Tpd52l2 siRNA to detect the effect on cell proliferation, apoptosis, invasion, migration and the cell cycle. In addition, miR-217 mimics and Tpd52l2 expression plasmids were co-transfected into AsPC-1 cells to further investigate the mechanism of miR-217 and Tpd52l2 in HPAC tumorigenesis. Finally, exploration of related signaling pathways was carried out. Herein, we found that the expression of miR-217 was significantly downregulated in HPAC tissues as compared with that observed in adjacent normal tissues. Further functional assays showed that restoration of the expression of miR-217 inhibited cell proliferation, invasion and migration, induced apoptosis, and caused cell cycle arrest of HPAC cells. Notably, Tpd52l2 was identified as a functional target of miR-217 in HPAC. Furthermore, an inverse correlation between miR-217 and Tpd52l2 expression was observed in the HPAC tissues. Downregulation of Tpd52l2 had an effect similar to that following overexpression of miR-217, and upregulation of Tpd52l2 reversed the effects of the overexpression of miR-217. Finally, we found that overexpression of miR-217 or knockdown of Tpd52l2 suppressed the PIK3CA/AKT signaling pathways. In addition, this may explain the effect of miR-217/Tpd52l2 on HPAC development. Taken together, these results suggest a critical role of miR-217 in suppressing proliferation, migration and invasion of HPAC cells by targeting Tpd52l2. Targeting the miR-217/Tpd52l2 axis may be a new therapeutic application with which to treat patients with HPAC in the future. PMID- 29039567 TI - Leptin promotes IL-18 secretion by activating the NLRP3 inflammasome in RAW 264.7 cells. AB - Leptin is a cytokine-like hormone secreted by adipocytes, which serves to control energy expenditure and metabolism. In addition, leptin may modulate the innate and adaptive immune responses. The innate immune cell sensor nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome is mainly expressed in myeloid immune cells, including macrophages. The NLRP3 inflammasome serves a pivotal role in the development and maintenance of autoimmunity and inflammation. The expression levels of caspase-1, apoptosis associated speck-like protein containing a CARD, interleukin (IL)-18, IL-1beta and leptin are significantly reduced in the white adipose tissue of nonsteroidal anti-inflammatory drug-activated gene-1 transgenic mice. However, the association between leptin and the NLRP3 inflammasome has not yet to be determined. The aim of the present study, was to explore the role of leptin on NLRP3 inflammasome. In order to do this, IL-1beta and IL-18 expression levels were investigated in RAW 264.7 cells after incubation with leptin of increasing doses by Elisa or reverse transcription-quantitative polymerase chain reaction, and to assess whether IL 1beta and IL-18 were affected after caspase-1 activity being inhibited by an inhibitor or by silencing NLRP3 expression. The results of the present study demonstrated that leptin enhanced the mRNA and protein expression levels of IL-18 in RAW 264.7 cells via activation of the NLRP3 inflammasome. This is achieved partly by enhancing the production of reactive oxygen species and K+ efflux. Therefore, leptin may be considered a novel activator and modulator of the NLRP3 inflammasome. PMID- 29039568 TI - 3,3'-Diindolylmethane attenuates cardiomyocyte hypoxia by modulating autophagy in H9c2 cells. AB - Autophagy is activated in the ischemic heart and is a process that is essential for survival, differentiation, development and homeostasis. 3,3'-Diindolylmethane (DIM) is a natural product of the acid-catalyzed condensation of indole-3 carbinol in cruciferous vegetables. Numerous studies have suggested that DIM has various pharmacological effects, including antioxidant, antitumor, anti angiogenic and anti-apoptotic properties. However, the function of DIM on hypoxia induced cardiac injury remains to be elucidated. In the present study, H9c2 cells were pretreated with DIM (1, 5 and 10 uM) for 12 h and exposed to hypoxia for 12 h. It was demonstrated that DIM markedly attenuated the increased transcription of interleukin (IL)-1beta, IL-6 and tumor necrosis factor-alpha induced by hypoxia. In addition, the transcription of autophagy associated genes increased in the DIM pretreated group, compared with the hypoxia group. DIM additionally attenuated the increased apoptosis, as determined by terminal deoxynucleotidyl transferase dUTP nick end labeling staining, and regulated the relative protein expression level of B cell lymphoma (Bcl) 2 associated X protein, Bcl-xL and cleaved caspase 3. Furthermore, the phosphorylation of the 5' AMP-activated protein kinase a (AMPKa) was activated and the phosphorylation of c-Jun N terminal kinase (JNK) was inhibited. The effect of DIM on hypoxia-induced apoptosis was abolished following pretreatment with JNK activator (anisomycin, 40 ng/ml). The effect of DIM on autophagy was reversed following pretreatment with AMPKa inhibitor (CpC, 20 uM) following stimulation with hypoxia. The results demonstrated that DIM prevented hypoxia-induced inflammation and apoptosis and activated cardiomyocyte autophagy, which may be mediated by activation of AMPKa and inhibition of JNK pathways. PMID- 29039569 TI - Baicalin inhibits the metastasis of highly aggressive breast cancer cells by reversing epithelial-to-mesenchymal transition by targeting beta-catenin signaling. AB - Metastasis is the main cause of death in breast cancer patients, which is due partly to the lack of effective treatment. Baicalin, a flavonoid compound isolated from the roots of Scutellaria lateriflora Georgi (Huang Qin), has recently been confirmed as an effective agent for the treatment of a variety of cancers. Yet, the effects and underlying molecular mechanisms of baicalin in regards to the metastasis of breast cancer remain unclear. In the present study, we found that baicalin had the potential to suppress the migration and invasion of highly aggressive breast cancer cells in a dose-dependent manner but had no impact on the viability of these cancer cells. Additionally, baicalin reversed the epithelial-to-mesenchymal transition (EMT) process, as evaluated by EMT markers in breast cancer cell lines with a change from a mesenchymal feature to an epithelial type. At the same time, the expression of beta-catenin mRNA and protein was dose-dependently downregulated by baicalin in highly invasive breast cancer cell lines, and overexpression of beta-catenin by adenoviruses abolished these beneficial effects of baicalin in regards to the migration and invasion, and EMT of breast cancer cells. Furthermore, using a xenograft mouse model, baicalin markedly reduced liver and lung metastasis of breast cancer, inhibited expression of beta-catenin, and degraded the EMT molecules vimentin and Slug in the orthotopic tumor tissues. Taken together, all these results indicate that baicalin effectively suppresses the metastasis of breast cancer by reversing EMT, which may be mediated by downregulation of beta-catentin expression. PMID- 29039570 TI - Effect of SOX2 on odontoblast differentiation of dental pulp stem cells. AB - The present study aimed to investigate the effect of SOX2 on odontoblast differentiation of dental pulp stem cells (DPSCs), and to examine the potential application of DPSCs on dental restoration. SRY-box 2 (SOX2) overexpression in human DPSCs (DPSCs-SOX2) was established by retroviral infection. The empty vector-infected DPSCs were regarded as a control group (DPSCs-vector group). Odontoblast differentiation culture medium was used to induce the differentiation of DPSCs. The degree of odontoblast differentiation of DPSCs was analyzed by flow cytometry. A genomic expression microarray and reverse transcription-quantitative polymerase chain reaction were used to analyze the molecular mechanism of SOX2 affecting odontoblast differentiation of DPSCs. After induction by odontoblast differentiation culture medium, the DPSC, DPSCs-vector and DPSCs-SOX2 groups all could carry out odontoblast differentiation. After induction for 3 weeks, all groups expressed dentin sialophosphoprotein (DSPP) and dentin matrix protein-1 (DMP-1) to a certain degree. However, after induction differentiation, the expression efficiency of DSPP and DMP-1 in the DPSCs-SOX2 group was highest compared with the normal DPSC and DPSCs-vector groups, which demonstrated the advantages of DPSC-SOX2 in odontoblast differentiation. Mechanism analysis indicated that in the DPSCs-SOX2 group, the activation of the Wnt signaling pathway and the upregulation of Wnt genes may be important mechanisms underlying SOX2 promoting odontoblast differentiation of DPSCs. These results preliminarily indicate that SOX2 has a certain promoting effect on odontoblast differentiation of DPSCs. PMID- 29039571 TI - LARP1 is regulated by the XIST/miR-374a axis and functions as an oncogene in non small cell lung carcinoma. AB - La-related protein 1 (LARP1) is a conserved RNA-binding protein and is known to regulate 5'-terminal oligopyrimidine tract (TOP) mRNA translation. Dysregulated LARP1 has been reported to be related to the development of several cancers. However, the exact function and mechanism of LARP1 in non-small cell lung cancer (NSCLC) is largely unknown. In the present study, we found that the mRNA levels of LARP1 were increased in NSCLC cells compared to those in normal control cells. Knockdown of LARP1 inhibited cell proliferation, migration and invasion in NSCLC cells and tumourigenicity in H520 cells. Both in vitro and in vivo analyses confirmed that STAT3 signalling was inactivated by the knockdown of LARP1. Moreover, LARP1 was identified as a direct target of miR-374a. Overexpression of miR-374a attenuated the promotor effects of LARP1 by inhibiting proliferation, metastasis and STAT3 signalling. Clinically, LARP1 was markedly overexpressed in NSCLC tissues, and upregulated LARP1 was correlated with tumour progression and poor survival. The expression of miR-374a was negatively correlated with the expression of LARP1 in NSCLC tissues. Furthermore, we found that XIST functioned as a competing endogenous RNA to suppress miR-374a, which regulated its downstream target LARP1. In summary, we suggest that the dysfunction of the XIST/miR-374a/LARP1 axis contributes to NSCLC and may serve as a promising therapeutic strategy for treatment. PMID- 29039572 TI - Thymoquinone inhibits epithelial-mesenchymal transition in prostate cancer cells by negatively regulating the TGF-beta/Smad2/3 signaling pathway. AB - Thymoquinone, a major ingredient of black seed oil (Nigella sativa), has been shown to exhibit anticancer capacity in various types of cancers. However, there are few studies concerning the correlation between thymoquinone and epithelial-to mesenchymal transition (EMT) in prostate cancer. In the present study, we firstly found that thymoquinone showed antimetastatic capacity in prostate cancer DU145 and PC3 cells. Additionally, thymoquinone reversed EMT by increasing E-cadherin expression and decreasing vimentin and Slug expression in a concentration dependent manner. Recent studies have shown that the transforming growth factor beta (TGF-beta) signaling pathway may be associated with EMT. Intriguingly, the expression of TGF-beta, Smad2 and Smad3 at the mRNA and protein levels was notably reduced upon thymoquinone treatment in prostate cancer DU145 and PC3 cells. Subsequently, we confirmed that thymoquinone repressed metastasis and EMT of prostate cancer through downregulation of the TGF-beta/Smad2/3 signaling pathway, which may be partially reversed by TGF-beta overexpression. In summary, our findings demonstrated that thymoquinone suppressed the metastatic phenotype and reversed EMT of prostate cancer cells by negatively regulating the TGF beta/Smad2/3 signaling pathway. These findings suggest that thymoquinone is a potential therapeutic agent against prostate cancer which functions by targeting TGF-beta. PMID- 29039573 TI - Antitumor effects of baicalin on ovarian cancer cells through induction of cell apoptosis and inhibition of cell migration in vitro. AB - Baicalin, an active flavone isolated from Scutellaria baicalensis Georgi, has been demonstrated to induce various beneficial biochemical effects such as anti inflammatory, anti-viral, and antitumor effects. However, the antitumor mechanism of baicalin is not well understood. In the present study, baicalin was demonstrated to inhibit the viability and migration of a widely used ovarian cancer cell line, A2780, in a dose-dependent manner. MTT assays revealed that cell viability significantly decreased in ovarian cancer cells treated with baicalin compared with untreated cells, without effect on normal ovarian cells. Flow cytometric analysis indicated that baicalin suppressed cell proliferation by inducing apoptosis. The underlying mechanisms involved were indicated to be downregulation of the anti-apoptotic protein B-cell lymphoma 2 apoptosis regulator and activation of caspase-3 and -9. In addition, wound healing and transwell assays revealed that cell migratory potential and expression of matrix metallopeptidase (MMP)-2 and MMP-9 were significantly inhibited when cells were exposed to baicalin, compared with untreated cells. The present study therefore suggested that baicalin has the potential to be used in novel anti-cancer therapeutic formulations for treatment of ovarian cancer. PMID- 29039574 TI - TGF-beta1-induced cell migration in pancreatic carcinoma cells is RAC1 and NOX4 dependent and requires RAC1 and NOX4-dependent activation of p38 MAPK. AB - Transforming growth factor (TGF)-beta promotes epithelial-mesenchymal transition and cell invasion of cancer cells in part through the small GTPase RAC1. Since RAC1 can signal through reactive oxygen species (ROS), we probed the role of the ROS-producing NADPH oxidase (NOX) and p38 mitogen-activated protein kinase (MAPK) in mediating TGF-beta1/RAC1-driven random cell migration (chemokinesis). Although the NOX isoforms NOX2, 4, 5, 6, and RAC1 were readily detectable by RT-PCR in pancreatic ductal adenocarcinoma (PDAC)-derived Panc1 and Colo357 cells, only NOX4 and RAC1 were expressed at higher levels comparable to those in peripheral blood monocytes. TGF-beta1 treatment resulted in upregulation of NOX4 (and NOX2) and rapid intracellular production of ROS. To analyze whether RAC1 functions through NOX and ROS to promote cell motility, we performed real-time cell migration assays with xCELLigence(r) technology in the presence of the ROS scavenger N-acetyl-L-cysteine (NAC) and various NOX inhibitors. NAC, the NOX4 inhibitor diphenylene iodonium or small interfering RNA (siRNA) to NOX4, and the NOX2 inhibitor apocynin all suppressed TGF-beta1-induced chemokinesis of Panc1 and Colo357 cells as did various inhibitors of RAC1 used as control. In addition, we showed that blocking NOX4 or RAC1 function abrogated phosphorylation of p38 MAPK signaling by TGF-beta1 and that inhibition of p38 MAPK reduced TGF-beta1 induced random cell migration, while ectopic expression of a kinase-active version of the p38 activating kinase MKK6 was able to partially rescue the decline in migration after RAC1 inhibition. Our data suggest that TGF-beta1 induced chemokinesis in PDAC cells is mediated through a RAC1/NOX4/ROS/p38 MAPK cascade. PMID- 29039575 TI - MicroRNA-760 inhibits cell proliferation and invasion of colorectal cancer by targeting the SP1-mediated PTEN/AKT signalling pathway. AB - Colorectal cancer (CRC), one of the most commonly diagnosed types of cancer worldwide, is the third most prevalent and fourth most frequent cause of cancer related mortality. Dysregulated microRNAs (miRNAs) have potential regulatory roles in the development and progression of various cancer types. Therefore, the investigation of the miRNAs involved in CRC formation and progression may lead to the development of highly effective therapeutic strategies for CRC. In the present study, miRNA-760 (miR-760) was frequently downregulated in CRC tissues and cell lines. The low levels of miR-760 expression were significantly correlated with the tumor size, lymph node metastasis and TNM stage of CRC. Functional assays revealed that restoring miR-760 expression inhibited CRC cell proliferation and invasion in vitro. The results of bioinformatics analysis, luciferase reporter assay, reverse transcription-quantitative polymerase chain reaction and western blot analysis suggested that specificity protein 1 (SP1) is a direct target of miR-760 in CRC. The high expression of SP1 in CRC tissues was inversely correlated with the expression of miR-760. Rescue experiments demonstrated that enforced SP1 expression rescued the tumor-suppressing effects of miR-760 on CRC cell proliferation and invasion. In addition, miR-760 overexpression is involved in the regulation of the PTEN/AKT signalling pathway. Collectively, the present data demonstrated that miR-760 directly targets SP1 to inactivate the PTEN/AKT signalling pathway, thus implicating miR-760 in the regulation of CRC cell proliferation and invasion. Therefore, miR-760 may be a novel biomarker and therapeutic target for CRC. PMID- 29039576 TI - Effects of ginsenoside-Rg1 on the proliferation and glial-like directed differentiation of embryonic rat cortical neural stem cells in vitro. AB - Ginsenoside-Rg1, the main active component of Panax notoginseng, exhibits a number of pharmacological functions, including promoting protein synthesis in the brain, increasing the number of synapses, improving memory and promoting recovery of brain function following injury. The effect of ginsenoside-Rg1 on proliferation and glial-like-directed differentiation in the cortical neural stem cells (NSCs) of embryonic rat brain was investigated. The present study used MTS assays to identify the optimum dose and window time of ginsenoside-Rg1 administration to stimulate the proliferation of cortical NSCs in the rat embryonic tissue. The oxygen glucose deprivation (OGD) set-up was used as a cell injury model. Immunofluorescent staining was used for identification of NSCs and subsequent observation of their proliferation and glial-like directed differentiation. Nestin expression was the marker for the presence of NSCs among the cortical cells of embryonic rat brain. The optimum dose of ginsenoside-Rg1 for proliferation of NSCs was 0.32 ug/ml. The optimum window time of 0.32 ug/ml ginsenoside-Rg1 administration on proliferation of NSCs was 6 h. Ginsenoside-Rg1 at 0.32 ug/ml concentration promoted incorporation of bromo-2-deoxyuridine, and expression of nestin and vimentin in primary and passaged NSCs, and NSCs following OGD. Ginsenoside-Rg1 had a role in promoting proliferation and glial like-directed differentiation of cortical NSCs. The plausible explanation for these responses is that ginsenoside-Rg1 acts similarly to the growth factors to promote the proliferation and differentiation of NSCs. PMID- 29039577 TI - Genome-wide analysis of the three-way interplay among gene expression, estrogen receptor expression and chemotherapeutic sensitivity in breast cancer. AB - The expression of estrogen receptor alpha (ER) in breast cancers may be indicative of a favorable prognosis and most of these cancers respond to anti estrogens or aromatase inhibitors. However, ER-positive (ER+) breast cancers receiving anti-hormone and/or chemotherapy sometimes lose their ER expression, which leads to the evolution of the disease to higher aggressiveness and drug resistance. In the present study, an ER-modified signature (EMS) was developed from the expression profile of a chemoresistant MCF-7 breast cancer cell line that lost ER expression during long-term treatment with a chemotherapeutic agent. The EMS could discriminate the ER-negative (ER-) breast cancer cells from the ER+ ones, which included seven pathways essential for the ER- cell development. Furthermore, the EMS indicated a more malignant subgroup of the ER- cells by discriminating the chemoresistant ER- cells from the chemosensitive ones. In addition, the classified chemoresistant ER- patients demonstrated worse prognosis. In conclusion, we developed a new method to discriminate subgroups of ER- breast cancer cells. PMID- 29039578 TI - The FOXM1/BUB1B signaling pathway is essential for the tumorigenicity and radioresistance of glioblastoma. AB - Accumulating evidence indicates that mitotic checkpoint serine/threonine kinase B (BUB1B) plays a critical role in multiple types of cancer. However, the biological function and molecular regulatory mechanism of BUB1B in glioblastoma (GBM) remain unclear. In the present study, we identified that BUB1B expression was enriched in GBM tumors and was functionally required for tumor proliferation both in vitro and in vivo. Clinically, BUB1B expression was associated with poor prognosis in GBM patients and BUB1B-dependent radioresistance in GBM was decreased by targeting BUB1B via shRNAs. Mechanistically, forkhead box protein M1 (FOXM1) transcriptionally regulated BUB1B expression by binding to and then activating the BUB1B promoter. Therapeutically, we found that FOXM1 inhibitor attenuated tumorigenesis and radioresistance of GBM both in vitro and in vivo. Altogether, BUB1B promotes tumor proliferation and induces radioresistance in GBM, indicating that BUB1B could be a potential therapeutic target for GBM. PMID- 29039579 TI - Co-expression of murine double minute 2 siRNA and wild-type p53 induces G1 cell cycle arrest in H1299 cells. AB - The therapeutic options available for the treatment of advanced non-small cell lung cancer have increased over the past decade. Small molecule gene therapy has emerged as an effective therapy for the treatment of lung cancer in vitro and in vivo although it has not been tested in a clinical setting. In particular, therapies that target the negative feedback loop between p53 and murine double minute 2 (MDM2) provide a favorable outcome by maintaining activation of the tumor suppressor gene p53. The present study used transfection to simultaneously knockdown MDM2 expression using small interfering (si)RNA, and overexpress wild type p53 in H1299 cells. The effects of transfection on cell proliferation and cell cycle progression were determined using an MTT assay and flow cytometry, and the effects on mRNA and protein expression were determined by western blotting and reverse transcription polymerase chain reaction. The results indicated that simultaneously knocking down MDM2 and overexpressing p53 was able to inhibit proliferation and induce G1 cell cycle arrest in H1299 cells, compared with either alone. These findings indicated that the si-MDM2-p53 co-expression plasmid may induce cell cycle arrest, and may be considered a novel therapeutic option for the treatment of lung cancer. PMID- 29039580 TI - Combination of oncolytic adenovirus and luteolin exerts synergistic antitumor effects in colorectal cancer cells and a mouse model. AB - In recent years, oncolytic viruses have attracted increasing interest due to their potent antitumor effects. Luteolin, a natural product, has additionally been observed to exhibit various pharmacological antitumor activities. Previously, a novel dual-targeting oncolytic adenovirus, complement decay accelerating factor (CD55)-tumor necrosis factor ligand superfamily member 10 (TRAIL), was constructed, which exhibited significant growth inhibitory effects in various types of tumor cell. The present study investigated whether the combination of luteolin and CD55-TRAIL was able to exert a synergistic antitumor effect in colorectal carcinoma (CRC) cells. The cytotoxicity and tumor cell apoptosis mediated by combination treatment in CRC cells were detected via an MTT assay, Hoechst staining and western blotting, respectively. Tumor growth in vivo was examined in a CRC mouse xenograft model following various treatments. The results demonstrated that the addition of luteolin enhanced oncolytic adenovirus mediated enhanced green fluorescent protein, early region 1A and TRAIL expression. The combination of CD55-TRAIL with luteolin synergistically inhibited tumor growth and promoted CRC cellular apoptosis in vitro and in vivo. Additionally, the combination of CD55-TRAIL with luteolin significantly decreased cytotoxicity in lung/bronchial normal epithelial cells, compared with single treatment. Therefore, the combination of CD55-TRAIL with luteolin may be a novel efficient therapeutic strategy for CRC in the future. PMID- 29039581 TI - Shikonin induces apoptosis and G0/G1 phase arrest of gallbladder cancer cells via the JNK signaling pathway. AB - Shikonin, a natural product isolated from the roots of Lithospermum erythrorhizon, is considered to have antitumor effects. Gallbladder cancer (GBC) is a prevalent biliary tract malignancy with few curative therapeutic stragegies and poor prognosis. In the present study, we detected the effects of shikonin on GBC cells as well as the underlying molecular mechanisms. The results demonstrated that GBC cell proliferation was inhibited by shikonin as determined by MTT and colony formation assays. Flow cytometry results demonstrated that shikonin treatment enhanced apoptosis and promoted G0/G1 phase arrest in the GBC cells. Western blot assay showed that shikonin induced mitochondrial-dependent apoptosis via the JNK signaling pathway. Moreover, shikonin suppressed tumor growth in mice bearing GBC-derived xenografts in a dose-dependent manner without side-effects. These results revealed that shikonin exhibits anticancer effects on GBC cells by inducing apoptosis and regulating the cell cycle. Taken together, shikonin may be a novel and safe chemotherapeutic agent for the treatment of GBC. PMID- 29039582 TI - Curcumol inhibits the proliferation of gastric adenocarcinoma MGC-803 cells via downregulation of IDH1. AB - Curcumol, a polyphenol compound derived from the rhizome of Curcuma, has been established as an antitumor compound against multiple types of cancer, including gastric (GC), lung, liver and breast cancer. However, the molecular mechanisms undelying its anticancer activity in GC are still unclear. In this study, the antitumor efficacy of curcumol was ascertained in human gastric adenocarcinoma MGC-803 cells. An MTT assay was used to assess the viability of the MGC-803 cells treated by curcumol. The results of the Annexin V/propidium iodide (PI) staining followed by fluorescence activated cell sorting (FACS) analysis demonstrated that the cell cycle was arrested in the G2/M phase by curcumol. Annexin V-FITC/PI double staining followed by FACS analysis revealed that curcumol induced apoptosis of MGC-803 cells. FACS analysis after the cells were loaded with a DFCH DA probe revealed that the level of reactive oxygen species (ROS) increased after the cells were treated with curcumol. In adittion, FACS analysis after the cells were loaded with JC-1 revealed that the level of mitochondrial membrane potential (MMP) decreased after the cells were treated with curcumol. Furthermore, the downregulation of isocitrate dehydrogenase 1 (IDH1) was observed in the MGC-803 cells after being treated with curcumol as determined by western blotting and RT qPCR. In conclusion, we elucidated the antitumor effect of curcumol on MGC-803 cells and the involved mechanisms related to the induction of apoptosis, the increase of ROS, the decrease of MMP and the downregulation of IDH1. PMID- 29039583 TI - Serum metabolomic profile in genetically modified cows carrying human alpha lactalbumin gene. AB - The present study aimed to investigate the serum metabolomic profiles in genetically modified cows carrying and expressing human lactalbumin alpha (LALBA) and non-LALBA cows, and identify altered metabolic characteristics following the genetic modification. Serum biochemistry indexes were measured according to protocols recommended by International Federation of Clinical Chemistry. The metabolomic profiles were determined using the serum samples collected from LALBA (n=6) and non-LALBA cows (n=6). Welch's two-sample t-test was used to identify the metabolites that significantly differed between the LALBA and non-LALBA groups (fold-change ? 1 and P<0.05), followed by random forest and pathway analysis. The serum biochemistry indexes of LALBA and non-LALBA cows were within the normal ranges of healthy cows. A total of 273 metabolites were detected, among which 79 metabolites, including 46 increased and 33 decreased metabolites, differed significantly between the LALBA and non-LALBA groups. Random forest analysis identified 30 potential key metabolites, including 14 elevated and 16 reduced metabolites. These metabolites were primarily involved in pathways concerning the metabolism of leucine, isoleucine, valine, tryptophan and lipids, such as myristate and eicosapentaenoate. However, the serum in LALBA cow had unique metabolomic signature compared with non-LALBA cows. The accumulation of polyunsaturated fatty acids and amino acids, and the reduced levels of long chain saturated fatty acids in serum may benefit LALBA cows. However, further investigations are required to validate these benefits and the corresponding mechanisms. PMID- 29039584 TI - BAF53a is a potential prognostic biomarker and promotes invasion and epithelial mesenchymal transition of glioma cells. AB - Increasing evidence indicates that BAF53a is crucial for embryonic development and maintenance of stemness, and may be associated with epithelial-mesenchymal transition (EMT), which suggests its involvement in cancer progression. However, the role of BAF53a in glioma remains unknown. In the present study, BAF53a was found to be highly expressed in glioma tissues and was associated with poor overall survival (OS) and progression-free survival (PFS) in glioma patients. A multivariate Cox regression analysis revealed that BAF53a might be an independent prognostic factor for OS and PFS in glioma patients. Further functional analysis indicated that BAF53a overexpression could promote proliferation and increase the motility and invasion of U87 glioma cells, whereas BAF53a knockdown had the opposite effect. In addition, BAF53a expression was associated with the levels of E-cadherin and vimentin expression in glioma tissues. This was further confirmed in U87 cells expressing different levels of BAF53a; BAF53a overexpression was concomitant with decreased E-cadherin and increased vimentin expression, whereas BAF53a knockdown showed the opposite pattern of expression. Taken together, these results suggest that BAF53a may be a novel prognostic factor for glioma patients, and that BAF53 may facilitate glioma progression by promoting proliferation, invasion, and associate with EMT. Therefore, BAF53a could be a potential promising biomarker and a target for the treatment of glioma. PMID- 29039585 TI - Identification of genome variations in patients with lung adenocarcinoma using whole genome re-sequencing. AB - Lung adenocarcinoma is one of the types of non-small cell lung carcinoma, which tends to be treated with surgical therapy rather than radiation therapy. It occurs in smokers and non-smokers, and is the most common form of lung cancer among non-smokers and women. Gene rearrangements, including ALK, ROS1 and RET, and gene mutations, including epidermal growth factor receptor (EGFR), HER2, Kristen rat sarcoma viral oncogene homolog, BRAF, phosphoinositide-3-kinase, catalytic, alpha polypeptide and MET, have been identified in lung adenocarcinoma, which enable targeted therapy in lung adenocarcinoma, for example erlotinib, gefitinib and afatinib, which are EGFR inhibitors. The aim of the present study was to further investigate genome variations in lung adenocarcinoma. Single nucleotide polymorphisms (SNPs), insertions and deletions (InDels), structural variations (SVs) and copy number variations (CNVs) were identified in the whole genome from four patients with adenocarcinoma using a whole genome re-sequencing method performed on the Illumina HiSeq Xten platform. In total, ~415 GB of clean reads were obtained, the average sequencing depth was 31.10-fold, and 99.29% of the reference genome was covered by the clean reads. An average of 3,364,270 SNPs was identified, 98.76% of which were matched to the SNP database (dbSNP), and an average of 453,547 InDels were identified, 28.28% of which were in the dbSNP. The present study also identified a total of 13,050 SVs and 886 CNVs. The majority of the SVs were deletions (74.25%) and the major CNVs were in intergenic regions and coding sequence regions. In conclusion, the results of the present study generated an output of the genome alterations in lung adenocarcinoma, and provided a foundation for further investigation of the pathogenesis of lung adenocarcinoma. PMID- 29039586 TI - A single nucleotide polymorphism located in microRNA-499a causes loss of function resulting in increased expression of osbpl1a and reduced serum HDL level. AB - Atherosclerosis is the main pathological process that induces CVD (cardiovascular diseases), and the objective of our study was explore whether miR-499a rs3746444 polymorphism was associated with the HDL level, one of the risk factors of atherosclerosis. Online public miRNA database was utilized to predict the miR 499a target, and luciferase assay was conducted to confirm that miR-499a targeted osbpl1a, then western blot analysis and real-time PCR were performed to verify miRNA-mRNA regulatory relationship between miR-499a and osbpl1a. Based on results of bioinformatics algorithms, osbpl1a was predicted as a candidate target gene of miR-499a, luciferase reporter was generated, and it was found that the luciferase activity of cells was substantial downregulated following co-transfection with wild osbpl1a 3'UTR and miR-499a compared to that in scramble control, while the inhibitory effect of miR-499a was abolished after transfection of mutant osbpl1a 3'UTR. Then, miRNA-mRNA regulatory relationship between miR-499a and osbpl1a was detected, a concentration-dependent effect of miR-499a on the miR-499a expression was observed, and both osbpl1a mRNA and protein levels of cells transfected with miR-449a (30 and 60 nM) or osbpl1a siRNA were markedly reduced, while notably improved subsequent to transfect with anti-miR-449a (30 and 60 nM) in comparison with NC groups, moreover, the inhibitory effect among 30 or 60 nM miR-499a, osbpl1a siRNA was similar, the improved effect of 30 or 60 nM anti-miR-499a showed no significant change. The influence of rs3746444 A allele on expression level of miR-499a represented a recessive pattern in high-grade group with a higher level of miR-499a in AA group, and HDL level in AA group was significantly reduced related to those in AG and GG groups. This study validated that rs3746444 polymorphism influenced the expression of miR-499a, its target gene, osbpl1a, and thereby associated with the HDL level, which makes it a potential factor involved in the mechanism of atherosclerosis. PMID- 29039587 TI - Protective effects of rosmarinic acid against hydrogen peroxide-induced cellular senescence and the inflammatory response in normal human dermal fibroblasts. AB - Hydrogen peroxide (H2O2) is a reactive oxygen species (ROS) that induces numerous cellular events, including cellular senescence and inflammatory responses. Therefore, the aim of this study was to investigate the protective effect of Rosmarinic acid (RA) in H2O2-induced oxidative stress in normal human dermal fibroblasts (NHDFs). Cytotoxicity assays were performed using a water-soluble tetrazolium salt, and senescence-associated beta-galactosidase activity was determined to investigate the proportion of senescent cells. Antioxidant capacities were evaluated via H2O2-scavenging activity, reverse transcription quantitative polymerase chain reaction, NRF2 luciferase reporter gene activity and intracellular ROS scavenging assays. Cytokine-coded gene expression analysis and nuclear factor-kappaB luciferase activity were determined to verify the anti inflammatory effect of RA. As a result, the present study demonstrated that rosmarinic acid inhibited H2O2-induced oxidative stress and inflammatory responses in normal human dermal fibroblasts. Initially, the doses of RA that exerted minimal cytotoxic effects in NHDFs were determined using a cytotoxicity assay. Subsequently, pretreatment with the appropriate doses of RA significantly reversed the H2O2-induced decrease in NHDF cell viability and decreased cellular senescence of NHDFs. In addition, RA inhibited H2O2-induced ROS production in NHDFs, as determined by a ROS scavenging assay. The protective effects of RA were mediated by the inhibition of nuclear factor erythroid-derived 2-like 2, a transcription factor that functions as a key regulator of redox sensitivity. Furthermore, RA suppressed H2O2-induced inflammation in NHDFs and significantly rescued H2O2-induced downregulation of sirtuin 1. RA also inhibited nuclear factor (NF)-kappaB transcriptional activity and the expression of NF-kappaB target genes, including tumor necrosis factor-alpha and interleukin-6, in H2O2 exposed NHDFs. Taken together, these data indicate that RA inhibits H2O2-induced cellular damage in NHDFs. PMID- 29039588 TI - A panel of markers for identification of malignant and non-malignant cells in culture from effusions. AB - The aim of the present study was to identify cell types in primary culture from malignant and non-malignant effusions. Effusion samples were subjected to cytology and culture. Immunocytochemistry was performed in cytological slides to evaluate malignancy (positivity for malignancy markers) and in culture slides for identification of cell types in growth. A total of 143 effusion samples (pleural n=76; peritoneal n=37; pericardial n=4; and peritoneal lavage n=26) were analyzed. Cell growth was observed in 34.9% of all samples and immunocytochemistry for identification of cell types in culture slides was conclusive in 90% of them. In non-malignant samples (n=28), growth of mesothelial cells, macrophages and of both cell types was identified in 82.14, 10.71 and 7.14%, respectively. In malignant samples (n=17, all carcinomas), growth of malignant epithelial cells and of both malignant epithelial and mesothelial cells was identified in 41.17 and 23.52%, respectively. In the remaining 35.29% of malignant samples, the only cells in growth were mesothelial and/or macrophages instead of malignant epithelial cells. In conclusion, in culture of malignant effusions, mesothelial cells may be simultaneously identified with malignant epithelial cells. Besides, mesothelial cells and macrophages may be the only cells identified in malignant effusion culture. Therefore, a broad panel of cell markers should be used for unmistakable identification of cells in studies of effusion primary culture. The ideal malignant effusion sample to obtain culture of neoplastic cells should be that without the presence of mesothelial cells and macrophages. PMID- 29039589 TI - Partial monosomy 8p and trisomy 16q in two children with developmental delay detected by array comparative genomic hybridization. AB - Two cases of liveborn unrelated children with developmental delay and overlapping unbalanced translocations der(8)t(8;16)(p23.2;q23.3) and der (8)t(8;16)(p23.1;q23.1), leading to partial monosomy 8p and partial trisomy 16q, are reported in the present study. The first patient was a 10-year-old boy with mild developmental delay and minor congenital anomalies (borderline microcephaly, clinodactyly, hypertelorism, epicanthus, mild systolic murmur and kidney reflux). The second patient was a 3 year-old girl with developmental delay, gross motor milestone delay and dysmorphic features. Array-comparative genomic hybridization analysis revealed that partial chromosome 8p monosomy extended from 8p23.2 to 8pter (4.8 Mb) in Patient 1 and from 8p23.1 to 8pter (9.5 Mb) in Patient 2, and partial chromosome 16 trisomy extended from 16q23.3 to 16qter (5.6 Mb) in Patient 1 and from 16q23.1 to 16qter (11.7 Mb) in Patient 2. The mechanism of appearance of the rearrangement in association with the genes involved and the architecture of the region is discussed. PMID- 29039590 TI - MicroRNA-218 promotes prostaglandin E2 to inhibit osteogenic differentiation in synovial mesenchymal stem cells by targeting 15-hydroxyprostaglandin dehydrogenase [NAD(+)]. AB - The chondrogenic differentiation of synovial mesenchymal stem cells (SMSCs) is regulated by essential transcription factors and signaling cascades. However, the precise mechanisms involved in this process remain unclear. MicroRNAs (miRs/miRNAs) are undersized non-coding RNAs responsible for the post transcriptional regulation of gene expression, by binding to the 3'-untranslated regions (3'-UTRs) of their target mRNAs. miRNAs may constitute a promising tool to regulate SMSC differentiation and to advance the controlled differentiation of SMSCs in therapeutic applications. The aim of the present study was to examine the role of miR-218 in SMSC differentiation towards chondrocytes. The present study comparatively analyzed the expression profile of known miRNAs and specific target genes in SMSCs between early and late differentiation stages. Western blotting and reverse transcription-quantitative polymerase chain reaction analysis of gene expression demonstrated the upregulation of 15 hydroxyprostaglandin dehydrogenase [NAD(+)] (15-HPGD), prostaglandin E2 (PGE2) and rate limiting enzymes responsible for the synthesis of PGE2 precursors throughout chondrogenesis. Through correlation analysis, it was observed that there was a significant association between miR-128, 15-HPGD gene expression, 15 HPGD protein expression and microsomal prostaglandin E synthase 1. Further experiments demonstrated that miR-218 decreased PGE2 concentration by binding to the 3'-UTR of 15-HPGD. Using an immunofluorescence reporting system, it was observed that miR-218 regulated the expression of 15-HPGD during the differentiation of SMSCs into cartilage, and subsequently inhibited osteogenesis during chondrogenesis by acting on the 3'UTR of 15-HPGD. Therefore, miR-218 may be an important regulator targeting osteogenic factors and modulating cartilage formation and differentiation. The results of the present study provided a novel insight beneficial to cellular manipulation methods during cartilage regeneration, and in cartilage tissue engineering research. PMID- 29039591 TI - Dabrafenib in patients with recurrent, BRAF V600E mutated malignant glioma and leptomeningeal disease. AB - BRAF V600E mutations occur frequently in malignant melanoma, but are rare in most malignant glioma subtypes. Besides, more benign brain tumors such as ganglioglioma, dysembryoblastic neuroepithelial tumours and supratentorial pilocytic astrocytomas, only pleomorphic xanthoastrocytomas (50-78%) and epitheloid glioblastoma (50%) regularly exhibit BRAF mutations. In the present study, we report on three patients with recurrent malignant gliomas harbouring a BRAF V600E mutation. All patients presented with markedly disseminated leptomeningeal disease at recurrence and had progressed after radiotherapy and alkylating chemotherapy. Therefore, estimated life expectancy at recurrence was a few weeks. All three patients received dabrafenib as a single agent and all showed a complete or nearly complete response. Treatment is ongoing and patients are stable for 27 months, 7 months and 3 months, respectively. One patient showed a dramatic radiologic and clinical response after one week of treatment. We were able to generate an ex vivo tumor cell culture from CSF in one patient. Treatment of this cell culture with dabrafenib resulted in reduced cell density and inhibition of ERK phosphorylation in vitro. To date, this is the first series on adult patients with BRAF-mutated malignant glioma and leptomeningeal dissemination treated with dabrafenib monotherapy. All patients showed a dramatic response with one patient showing an ongoing response for more than two years. PMID- 29039592 TI - Inhibition of cell migration and invasion by miR-29a-3p in a colorectal cancer cell line through suppression of CDC42BPA mRNA expression. AB - The objective of this study was to determine the effect of miR-29a-3p inhibitor on the migration and invasion of colorectal cancer cell lines (CRC) and the underlying molecular mechanisms. miR-29a-3p was detected using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) in the CRC cell lines HCT11, CaCo2, HT29, SW480 and SW620. An invasive subpopulation designated SW480-7 was derived from the parental cell line, detected by Transwell and Transwell Matrigel assays. Cytoskeleton Regulators RT2 profiler PCR array and western blot analysis were utilized to identify the alterations in expression of downstream mRNAs. siRNA against CDC42BPA was transfected into SW480-7 and effects on cell migration and invasion were investigated. Data obtained showed that miR 29a-3p was detected in these five CRC cell lines. miR-29a-3p inhibitor had no effect on viability but stimulated cell migration and invasion of SW480-7 cells. In contrast, miR-29a-3p mimic suppressed cell migration and invasion. TargetScan miRBD and DIANA were employed to identify the potential direct target genes of miR-29a-3p in the Cytoskeleton Regulators RT2-Profiler PCR array. Cytoskeleton Regulators RT2-Profiler PCR array data showed that 3 out of the 5 predicted targets genes, CDC42BPA (2.33-fold), BAIAP2 (1.79-fold) and TIAM1 (1.77-fold), in the array were upregulated by miR-29a-3p. A significant increase in expression IQGAP2, PHLDB2, SSH1 mRNAs and downregulation of PAK1 mRNA was also detected with miR-29a-3p inhibition. Increase in CDC42BPA, SSH1 and IQGAP2 mRNA expression correlated with increased protein level in miR-29a-3p transfected SW-480-7 cells. Silencing of CDC42BPA (an enhancer of cell motility) partially abolished miR-29a 3p inhibitor-induced stimulation of cell migration and invasion. miR-29a-3p expression in stage II and III CRC is relatively lower than that of stage I CRC. However, the data need to be interpreted with caution due to the small sample size. In conclusion, inhibition of miR-29a-3p stimulates SW480-7 cell migration and invasion and downstream expression IQGAP2, PHLDB2, SSH1 mRNAs are upregulated whilst PAK1 mRNA is downregulated. Silencing of CDC42BPA expression partially reduces miR29a-3p inhibitor-induced migration and invasion of SW480-7 cells. PMID- 29039594 TI - Overexpression of Stathmin 1 correlates with poor prognosis and promotes cell migration and proliferation in oesophageal squamous cell carcinoma. AB - Stathmin 1 (STMN1) is a microtubule-regulated protein that plays an important role in tumour cell proliferation and migration. Overexpression of STMN1 is associated with clinicopathological characteristics in many human cancers. The aim of the present study was to investigate STMN1 expression, its correlation with clinicopathological characteristics, and its exact biological function in oesophageal squamous cell carcinoma (ESCC). STMN1 levels were measured in the ESCC tissue specimens of 276 patients by immunohistochemistry (IHC) to assess the prognostic efficacy of STMN1. IHC showed that patients with overexpression of STMN1 had a poorer prognosis compared with those with low expression, both in regards to 5-year overall survival (OS; 21.2 vs. 53.7%, P<0.001) and disease-free survival (DFS; 20.6 vs. 50.9%, P<0.001). STMN1 overexpression was associated with lower cell differentiation in tumour grade (correlation coefficient: 0.127, P=0.037). In multivariate analysis, STMN1 expression was found to be an independent prognostic factor for both OS (P<0.001; 95% CI, 1.555-2.970) and DFS (P=0.001; 95% CI, 1.978-2.444). Compared with the control, STMN1 downregulation significantly decreased cell migration, invasion and proliferation, whereas these were increased by STMN1 upregulation. STMN1 expression was significantly associated with prognosis and tumour differentiation in ESCC, indicating that STMN1 expression is an independent prognostic factor for ESCC and could be a potential biomarker. Regulating the expression of STMN1 could influence tumour cell motility, invasion and proliferation. PMID- 29039593 TI - Hyperthermia with different temperatures inhibits proliferation and promotes apoptosis through the EGFR/STAT3 pathway in C6 rat glioma cells. AB - Malignant gliomas are a group of aggressive neoplasms among human cancers. The curative effects of current treatments are finite for improving the prognosis of patients. Hyperthermia (HT) is an effective treatment for cancers; however, the effects of HT with different temperatures in treatment of MG and relevant mechanisms remain unclear. MTT assay and Annexin V-fluorescein isothiocyanate/propidium iodide staining were used for investigating the proliferation and apoptosis of C6 cells, respectively. Western blotting was applied to detect the expression of proteins. Ultrasonography was employed to evaluate the tumor formation rate, growth rate, angiogenesis rate and degree of hardness of tumors in vivo. The authors certified that HT with 42-46C x 1 h, 1 t could inhibit proliferation, promote apoptosis, reduce tumor formation rate, growth rate, angiogenesis rate, degree of hardness of tumors, ischemic tolerance and anoxic tolerance, and have synergy with temozolomide in C6 cells. Long-term HT (43C x 1 h, 1 t/5 d, 90 d) did not cut down the sensitivity of C6 cells to HT, and sustainably inhibited the proliferation of C6 cells. Furthermore, the authors proved HT produced these effects primarily through inhibition of the EGFR/STAT3/HIF-1A/VEGF-A pathway. PMID- 29039595 TI - Caveolin-1 regulates oxidative stress-induced senescence in nucleus pulposus cells primarily via the p53/p21 signaling pathway in vitro. AB - Previous studies have indicated that cellular senescence is a critical underlying mechanism of intervertebral disc degeneration. However, the precise mechanism by which cellular senescence accelerates disc degeneration has not been fully elucidated. Caveolin-1 has recently emerged as an important regulator of cellular senescence. Therefore, the aim of the present study was to investigate whether caveolin-1 is involved in nucleus pulposus (NP) cellular senescence during oxidative stress. PCR was used to detect caveolin-1 mRNA expression and protein expression was detected by western blotting. Caveolin-1 expression at the mRNA and protein levels was markedly increased following treatment with tert-butyl hydroperoxide, and an increase in premature senescence was observed, as determined by senescence-associated beta-galactosidase staining and the decline of cellular proliferative ability. In addition, caveolin-1 gene expression was successfully knocked down by lentivirus-mediated RNA interference, which exerted a protective effect against the cellular senescence induced by oxidative stress. Notably, p53 and p21 protein expression, though not p16 protein expression, decreased with caveolin-1 silencing. The results suggested that caveolin-1 may be involved in NP cellular senescence during oxidative stress in vitro, mainly via the p53/p21 signaling pathway. Thus, caveolin-1 may represent a novel therapeutic target for the prevention of intervertebral disc degeneration. PMID- 29039596 TI - The role of the miR-99b-5p/mTOR signaling pathway in neuroregeneration in mice following spinal cord injury. AB - The present study aimed to investigate the role of microRNA (miR)-99b-5p in spinal cord injury (SCI). Reverse transcription-quantitative polymerase chain reaction demonstrated that, compared with control mice, the expression levels of miR-99b-5p were upregulated in the mouse spinal cord following SCI. Mechanistic target of rapamycin (mTOR) was predicted to be the possible target of miR-99b-5p according to TargetScan and microrna databases. Dual-luciferase reporter assay verified that miR-99b-5p was able to target mTOR. Furthermore, the results of an apoptosis analysis demonstrated that there were few apoptotic neurons in the control group, whereas SCI induced a significant increase in the number of apoptotic cells. Conversely, apoptosis was inhibited following transfection with a miR-99b-5p inhibitor. The effects of miR-99b-5p on neurite growth were also evaluated. The results of an immunofluorescence analysis indicated that neurite growth was normal in the control group, whereas SCI induced a reduction in neurite growth, which was rescued following transfection with a miR-99b-5p inhibitor. The protein expression levels of mTOR were detected in the three groups by western blotting. The results demonstrated that, compared with the control group, the protein expression levels of mTOR were significantly reduced in SCI neurons, whereas transfection with a miR-99b-5p inhibitor suppressed the SCI-induced reduction of mTOR. In conclusion, treatment with a miR-99b-5p inhibitor may attenuate SCI-induced harmful alterations in spinal cord neurons via the regulation of mTOR expression. PMID- 29039597 TI - Whole-genome scale identification of methylation markers specific for cerebral palsy in monozygotic discordant twins. AB - Cerebral palsy (CP) is a severe type of brain disease affecting movement and posture. Although CP has strong genetic and environmental components, considerable differences in the methylome between monozygotic (MZ) twins discordant for CP implicates epigenetic contributors as well. In order to determine the differences in methylation in patients with CP without interference of the interindividual genomic variation, four pairs of MZ twins discordant for CP were profiled for DNA methylation changes using reduced representation bisulfite sequencing on the genomic-scale. Similar DNA methylation patterns were observed in all samples. However, MZ twins demonstrated higher correlations and closer evolutionary associations compared with the other samples, indicating a stable methylome of MZ twins. A total of 190 differentially methylated genes (DMGs) were identified using Student's t-test, of which 37 genes were hypermethylated in the CP group while the remainders were hypomethylated compared with control group. The identified DMGs were enriched in several cerebral abnormalities, including cerebral cortical atrophy and cerebral atrophy, suggesting that the occurrence of CP may be associated with the methylation alterations. The neighboring genes of DMGs in the protein-protein interaction network were enriched in numerous important functions in essential processes. The results of the present study identified important genes that may epigenetically contribute to the occurrence and development of CP in MZ twins, suggesting that the different prevalence of CP in identical twins may be associated with DNA methylation alterations. PMID- 29039598 TI - Expression of key enzymes in the mevalonate pathway are altered in monocrotaline induced pulmonary arterial hypertension in rats. AB - Pulmonary arterial hypertension (PAH) is a serious pulmonary vascular disease. The changes in the structure, function and metabolism of endothelial cells are some of the important features of PAH. Previous studies have demonstrated that the mevalonate pathway is important in cardiovascular remodeling. However, whether the mevalonate pathway is involved in the development of PAH remains to be elucidated. The present study aimed to investigate the expression pattern of mevalonate pathway-related enzymes in monocrotaline (MCT)-induced PAH. F344 rats were randomly divided into two groups (n=6/group): Control group rats were injected with a single dose of saline, and MCT group rats were injected with a single dose of MCT (60 mg/kg). After 4 weeks, the right ventricular systolic pressure (RVSP) was measured, and lung and pulmonary artery tissue samples were collected. It was demonstrated that the RVSP increased and pulmonary vascular remodeling was detected in the PAH group. The expression levels of the enzymes farnesyldiphosphate synthase farnesyltransferase alpha and geranylgeranyltransferase type I increased in the PAH group, which suggested that the mevalonate pathway may be involved in the pathological development of PAH. PMID- 29039599 TI - Suppressive role of miR-592 in breast cancer by repressing TGF-beta2. AB - The function of miR-592 has been investigated in many types of cancer, however its roles in breast cancer remain unclear. We therefore investigated the biological function and underlying mechanism of miR-592 in breast cancer. In the present study, a marked downregulation of miR-592 was observed in breast cancer tissues and cell lines compared to the matched adjacent non-tumor tissues and normal breast cell line. Statistical analysis revealed that decreased miR-592 was negatively associated with advanced clinical stage, distant metastasis and lymph node metastases. Function analysis demonstrated that overexpression of miR-592 significantly inhibited cell proliferation, clone formation, migration and invasion in breast cancer cells in vitro, as well as suppressed tumor growth in vivo. Furthermore, transforming growth factor beta-2 (TGFbeta-2), a known oncogene, was identified as a direct target of miR-592, and its mRNA expression level was inversely correlated with the expression level of miR-592 in human breast cancer specimens. Restoration of TGFbeta-2 expression rescued the inhibitory effect in breast cancer cells caused by miR-592. Collectively, these data suggest that miR-592 may exert it suppressive role in breast cancer, at least in part, by targeting TGFbeta-2, and that miR-592 may be a novel target for breast cancer treatment. PMID- 29039600 TI - Synergism between alpha-mangostin and TRAIL induces apoptosis in squamous cell carcinoma of the oral cavity through the mitochondrial pathway. AB - Mangosteen (Garcinia mangostana) is a tree found in South-East Asia and the pericarp of its fruit has been used in folk medicine for the treatment of many human illnesses. Mangosteen fruit rinds contain a high concentration of xanthone, which is a type of polyphenol. One type of xanthone, alpha-mangostin, has been reported to exert chemopreventive effects against chemically-induced colon cancer through the decrease of c-Myc expression, suppressing tumor growth in a mouse model of mammary cancer. A recent study demonstrated the inhibitive effect of alpha-mangostin on the growth of prostate cancer. However, it remains unclear whether alpha-mangostin induces cell death in oral cancer. The present study examined the impact of alpha-mangostin on human oral squamous cell carcinoma (HOSCC). Firstly we analyzed the expression of c-Myc in five HOSCC cell lines. The highest expression level of c-Myc mRNA was observed in SAS cells and the lowest in HSC-4 cells. Therefore, SAS cells were treated with alpha-mangostin, which was found to exert a weak cytocidal effect. Since alpha-mangostin has been reported to exert synergistic effects on cancers when combined with anticancer drugs, we attempted to evaluate such synergistic effects of alpha-mangostin when used with a cytokine, tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL). We found that the combination of alpha-mangostin with TRAIL induced apoptosis of SAS cells through the mitochondrial pathway via activation of caspase-9 and -3/7, following release of cytochrome c. This apoptosis was induced by S/G2/M-phase arrest. Immunopositivity for c-Myc was observed in the cytoplasm of tumor cells in 16 (40%) of the 40 cases of HOSCC. These data revealed that the combination of alpha-mangostin and TRAIL may have a considerable potential for the treatment of oral cancer. PMID- 29039601 TI - Vasohibin2 promotes adriamycin resistance of breast cancer cells through regulating ABCG2 via AKT signaling pathway. AB - As a well-known angiogenic factor in different histology and pathological conditions, the pro-progressive role of vasohibin2 (VASH2) has been reported in various types of tumors. However, its role in drug resistance of breast cancer has not been reported so far. The present study demonstrated that MCF-7 cells with increased expression of VASH2 demonstrate stronger adriamycin (ADM) resistance compared with MDA-MB-231 cells with decreased expression of VASH2. Overexpression of VASH2 in MDA-MB-231 cells increased ADM resistance and silencing VASH2 in MCF-7 cells inhibited ADM resistance. Furthermore, in newly established ADM resistant cell lines, VASH2 was significantly upregulated. These results revealed the promotive role of VASH2 in the ADM resistance of breast cancer cells. In addition, overexpression of VASH2 in MDA-MB-231 cells significantly upregulated ATP-binding cassette sub-family G member 2 (ABCG2), however silencing VASH2 in MCF-7 cells inhibited ABCG2 significantly. Silencing ABCG2 abrogated increase of ADM resistance induced by VASH2 overexpression in MDA MB-231 cells. This proved that VASH2 induced ADM resistance through promoting expression of ABCG2, at least in part. Further study regarding the underlying molecular mechanism demonstrated that VASH2 promoted ABCG2 via the protein kinase B (AKT) signaling pathway. Overall, VASH2 may promote drug resistance of breast cancer cells through regulating ABCG2 via the AKT signaling pathway. This suggests a novel therapeutic target to inhibit drug resistance in breast cancer, for a more efficient therapeutic outcome. PMID- 29039602 TI - lncRNA-MIAT regulates cell biological behaviors in gastric cancer through a mechanism involving the miR-29a-3p/HDAC4 axis. AB - Gastric cancer (GC) is one of the most common malignant diseases worldwide. Although significant progress has been made in the early detection and treatment of GC over the past decades, the prognosis is still not satisfactory and the underlying mechanisms of carcinogenesis remain unknown. Long non-coding RNA MIAT has been established as a key player in the regulation of various biological and pathological processes including chronic lymphocytic leukemias, acute myocardial infarction and neuroendocrine prostate cancer. However, the function of MIAT in GC remains largely unknown. The expressions of lncRNA MIAT, miR-29a-3p and HDAC4 mRNA were analysed using quantitative real-time PCR (qRT-PCR). RNA interference approach was used to investigate the cellular functions of MIAT and miR-29a-3p. Cell Counting Kit-8 (CCK-8) assay and flow cytometry assay were performed to detect cell proliferation and apoptosis. Cell migration and invasion abilities were evaluated by Transwell assays. In the present study, we first confirmed the high expression level of MIAT in GC tissues and cell lines. In addition, knockdown of MIAT suppressed the proliferation, migration and invasion of GC cells in vitro. Furthermore, our results demonstrated that MIAT competitively binds to miR-29a-3p and consequently upregulates the expression of HDAC4, which is a downstream target of miR-29a-3p. In conclusion, the present study highlighted the involvement of the MIAT/miR-29a-3p/HDAC4 axis in the development of GC, which provided potential diagnostic and therapeutic targets for GC. PMID- 29039603 TI - Blockade of alpha7 nicotinic acetylcholine receptors inhibit nicotine-induced tumor growth and vimentin expression in non-small cell lung cancer through MEK/ERK signaling way. AB - Nicotine can stimulate the progression of non-small cell lung cancer (NSCLC) through nicotinic acetylcholine receptors (nAChRs). The persistent proliferation of cancer cells is one of the key effects of nicotinic signaling. The present study aimed to clarify the mechanism of nicotine-induced proliferation in NSCLCs at the receptor subtype level. We have previously reported that there are various subtypes of nicotinic receptors expressed in NSCLC cell lines. In the present study, we demonstrated that blocking alpha7nAChRs agonized by nicotine could suppress the proliferation of H1299 cells in vitro and decrease H1299 tumor xenograft growth in nude mice. During this process, the expression of vimentin was also markedly attenuated, concomitant with the decreased expression of alpha7nAChR. These results were ascertained by knocking down the alpha7nAChR gene to abolish receptor functioning. Furthermore, under the stimulation of nicotine, the MEK/ERK signaling pathway was found to be inhibited when cells were treated with an antagonist of alpha7nAChR or an inhibitor of MEK. Collectively the results indicate that the changes in proliferation and vimentin expression of H1299 cells in response to alpha7nAChR stimulation are mediated by the MEK/ERK pathway. These findings demonstrate that alpha7nAChR plays an important role in H1299 cell proliferation, tumor growth and expression of vimentin. Therefore, blocking alpha7nAChRs in NSCLC may be a potential adjuvant therapy for the targeted treatment of NSCLC. PMID- 29039604 TI - Elevated pentose phosphate pathway is involved in the recovery of hypoxia-induced erythrocytosis. AB - As a typical model of hypoxia-induced excessive erythrocytosis, high altitude polycythemia (HAPC) results in microcirculation disturbance, aggravates tissue hypoxia and results in a severe clinical outcome, without any effective intervention methods except for returning to an oxygen-rich environment. The present study aimed to explore potential therapeutic targets which may participate in the recovery of HAPC by studying the mechanisms of reducing the hemoglobin (HB) concentration during re-oxygenation. A total of 14 and 13 subjects were recruited over a 5,300 m distance and 5,170 m area. The patients were classified into HAPC or control groups based on their HB value. Plasma samples were collected on the day when they finished their stay in plateau for a year, and on the 180th day following their reaching in plain. Metabolic profiling was conducted by UPLC-QTOF/MS. MetaboAnalyst platform was performed to explore the most perturbed metabolic pathways. A panel of differential metabolites were obtained in the recovery phase of HAPC and control groups. The present study identified the uniquely upregulated pentose phosphate pathway in HAPC subjects, along with a significantly decreased HB level. The findings were verified via a direct comparison between HAPC and control subjects at a high altitude. An increased pentose phosphate pathway was identified in control groups compared with HAPC subjects. An elevated pentose phosphate pathway may therefore participate in the recovery of HAPC, whereas a downregulated pentose phosphate pathway may contribute to hypoxia-induced erythrocytosis. The results of the present study provide potential therapeutic strategies and novel insights into the pathogenesis of hypoxia-induced polycythemia. PMID- 29039605 TI - Knockdown of HIP1 expression promotes ligand-induced endocytosis of EGFR in HeLa cells. AB - Huntington-interacting protein 1 (HIP1) is associated with various tumor types; however, its precise functions in tumor cells are unclear. In this study, the effects of HIP1 on the degradation of EGFR, which have important roles in carcinogenesis after EGF stimulation, were examined. After screening 17 cell lines, the coexpression of HIP1 and EGFR was detected in HeLa cells. Accordingly, the expression of HIP1 was knocked down in HeLa cells using various HIP1 siRNA sequences. The endocytosis of EGFR and localization of clathrin in HeLa cells were examined after stimulation by EGF at various concentrations (i.e., 1.5 and 100 ng/ml). After HIP1 expression was blocked by siRNAs, EGFR endocytosis was accelerated and this effect was dependent on the EGF concentration. This endocytosis was colocalized with clathrin expression. These findings indicate that the inhibition of HIP1 can accelerate the endocytosis and degradation of EGFR. Furthermore, they suggest that HIP1 is a potential therapeutic target for various cancer types, particularly those with high EGFR expression, but further research is needed to examine this hypothesis. PMID- 29039606 TI - Expression, regulation and mechanism of action of the miR-17-92 cluster in tumor cells (Review). AB - MicroRNAs (miRNAs), a class of short, single-stranded non-coding RNAs, regulate and control gene expression in eukaryotes by degrading mRNA at the post transcriptional level. Regulation by miRNAs involves a plethora of biological processes, such as cell differentiation, proliferation, metastasis, metabolism, apoptosis, tumorigenesis and others. miRNAs also represent a powerful tool in disease diagnosis and prognosis. The miR-17-92 cluster, one of the most extensively investigated microRNA clusters, comprises six mature miRNA members, including miR-17, miR-18a, miR-19a, miR-19b, miR-20a and miR-92a. Originally identified as being involved in tumorigenesis, it is currently evident that the expression of the miR-17-92 cluster is upregulated in a wide range of tumor cells and cancer types; thus, this cluster has been identified as a potential oncogene. Considering the growing interest in the field of miR-17-92 research, we herein review recent advances in the expression and regulation of this cluster in various cancer cells, discuss the proposed mechanism of action for tumorigenesis and tumor development, and propose clinical and therapeutic applications for miR 17-92 cluster members, such as potential cancer biomarkers. PMID- 29039608 TI - Livin promotes the progression and metastasis of breast cancer through the regulation of epithelial-mesenchymal transition via the p38/GSK3beta pathway. AB - Epithelial-mesenchymal transition (EMT) plays a pivotal role in the invasion and metastasis of breast cancer. Livin is a recently identified member of the inhibitors of the apoptosis protein family, which has been revealed to facilitate the progression of several types of cancer. However, the role of Livin in EMT and metastasis of breast cancer and its underlying mechanisms are not fully elucidated. In the present study, the levels of Livin mRNA and protein expression were found to be elevated in breast cancer tissues and cell lines. In addition, Livin expression was positively correlated with TNM stage and lymph node metastasis in total and triple-negative breast cancer (TNBC) cases. Livin overexpression enhanced the migratory and invasive abilities of the MCF-7 cells, accompanied by increases in vimentin, N-cadherin, Snail, MMP-2 and MMP-7 and a decrease in E-cadherin. Conversely, the downregulation of Livin had the opposite effect in MDA-MB-231 cells. Furthermore, the upregulation of Livin expression markedly stimulated the activation of the p38/GSK3beta pathway, while the downregulation of Livin expression clearly suppressed the activation of the p38/GSK3beta pathway. In conclusion, our results revealed that Livin induced EMT through the activation of the p38/GSK3beta pathway, which in turn promoted the progression and metastasis of breast cancer, especially for TNBC. PMID- 29039607 TI - Downregulation of miR-874-3p promotes chemotherapeutic resistance in colorectal cancer via inactivation of the Hippo signaling pathway. AB - Overcoming resistance to chemotherapy is an arduous challenge in the treatment of colorectal cancer (CRC), particularly since the underlying molecular mechanisms remain obscure. In the present study, we reported that miR-874-3p was markedly downregulated in CRC tissues compared with that in adjacent normal colorectal epithelial tissues. Upregulation of miR-874-3p attenuated the chemoresistance of CRC cells to 5-fluorouracil (5-FU) in vitro and in vivo. Conversely, inhibition of miR-874-3p yielded an opposite effect. Furthermore, our results demonstrated that miR-874-3p directly inhibited the expression of transcriptional co activators YAP and TAZ of the Hippo signaling pathway, resulting in the inactivation of the TEAD transcription. Thus, our findings clarify a novel mechanism by which miR-874-3p restores chemotherapeutic sensitivity of CRC to 5 FU, indicating that offering miR-874-3p mimics in combination with 5-FU may serve as a new therapeutic strategy to circumvent the chemoresistance in CRC. PMID- 29039609 TI - Quercetrin from Toona sinensis leaves induces cell cycle arrest and apoptosis via enhancement of oxidative stress in human colorectal cancer SW620 cells. AB - Finding effective strategies against colorectal cancer (CRC) is still an emergent health problem. In the present study, we investigated the anticancer activity of quercetrin from Toona sinensis leaves (QTL) and explored the underlying mechanism in human CRC cell line SW620. The cells were treated with various concentrations of QTL and the cytotoxic effects of QTL were determined using the MTT assay. Apoptosis and cell cycle status were detected by flow cytometry. Reactive oxygen species (ROS) levels and mitochondrial membrane potential (?Psim) were assessed using DCF-DA and JC-1 fluorescence spectrophotometry, respectively. Western blot analysis was used to quantify the expression of apoptosis-related proteins. RT PCR was applied to determine the mRNA levels of glutathione peroxidase (GPx) and catalase (CAT). QTL exhibited growth inhibitory effects and caused cell cycle arrest in the G2/M phase, which was accompanied by increased expression of p53 and p21 proteins. QTL promoted apoptosis which was consistent with the upregulated expression of Bax, cytochrome c, caspase-9, Apaf-1 and caspase-3. In addition, QTL induced the loss of mitochondrial membrane potential and triggered ROS generation, as revealed by the downregulated mRNA expression and enzymatic activity of GPx and CAT. Furthermore, both N-acetyl cysteine (NAC) and GSH attenuated the QTL-induced growth inhibition observed in SW620 cells along with the increase of ROS levels. These findings revealed that QTL inhibited the growth of CRC cells and facilitated apoptosis by enhancing oxidative stress. QTL may therefore have potential for use in CRC chemotherapy. PMID- 29039611 TI - Altered expression of different GalNAc-transferases is associated with disease progression and poor prognosis in women with high-grade serous ovarian cancer. AB - Protein glycosylation perturbations are implicated in a variety of diseases, including cancer. Aberrant glycosylation in cancer is frequently attributed to altered expression of polypeptide GalNAc transferases (GalNAc-Ts) - enzymes initiating mucin-type O-glycosylation. A previous study from our group demonstrated that one member of this family (GALNT3) is overexpressed in epithelial ovarian cancer (EOC), and GALNT3 expression correlated with shorter progression-free survival (PFS) in EOC patients with advanced disease. As considerable degree of redundancy between members of the GalNAc-Ts gene family has been frequently observed, we decided to investigate whether other members of this family are essential in EOC progression. In silico analysis based on publically available data was indicative for altered expression of five GalNAc-Ts (GALNT2, T4, T6, T9 and T14) in ovarian high-grade serous carcinoma (HGSC) samples compared to non-tumoral (control) ovarian tissue. We analyzed protein expression of these GalNAc-Ts in EOC cells and tumors by western blotting, followed by immunohistochemical (IHC) evaluation of their expression in EOC tumor and control samples using tissue microarrays (TMAs). Western blot analyses were indicative for low expression of GALNT2 and strong expression of GALNT6, T9 and T14 in both EOC cells and tumors. These observations were confirmed by IHC. GALNT2 displayed significantly lower expression, while GALNT6, GALNT9 and GALNT14 showed significantly higher expression in HGSC tumors compared to control tissue. Importantly, GALNT6 and GALNT14 expression correlated with poor prognosis of serous EOC patients. Moreover, our results suggest for overlapping functions of some GalNAc-Ts, more specifically GALNT3 and GALNT6, in directing EOC progression. Our results are indicative for a possible implication of different members of the GalNAc-T gene family in modulating EOC progression, and the potential use of GALNT6 and GALNT14 as novel prognostic EOC biomarkers. These data warrant future studies on the role of members of the GalNAc-Ts gene family in ovarian tumorigenesis. PMID- 29039610 TI - Establishment of a human primary pancreatic cancer mouse model to examine and investigate gemcitabine resistance. AB - Pancreatic cancer is one of the most fatal types of cancer and is associated with a dismal prognosis. Gemcitabine-based chemotherapy is clinically used for the treatment of advanced pancreatic cancer. However, many forms of pancreatic cancer have acquired resistance to gemcitabine. In order to prevent patients from suffering from the side effects of chemotherapy and to have the chance to receive more effective intervention, assessment of whether the patient pancreatic cancer cells are resistant to gemcitabine before clinical practice is crucial. Recently, patient-derived xenograft (PDX) models have been regarded as a practical approach for preclinical drug resistance test. In the present study, we harvested tumor specimens from 28 pancreatic cancer patients to establish PDX models. The tumor formation rate of the xenografts was 100%, several of which could be re-implanted in nude mice for more than 10 passages. Primary cells were further obtained from the PDX xenografts to determine their morphological features and evaluate their proliferation rate, migration capacity and angiopoietic ability. In addition, the sensitivities of the primary cells and PDX xenografts to gemcitabine were correlated with each other. When compared to the gemcitabine-sensitive cells, the gemcitabine-resistant cells had a higher level of MCF2L expression, suggesting that MCF2L plays an important role in gemcitabine resistance. PMID- 29039612 TI - Long non-coding RNA, steroid receptor RNA activator (SRA), induces tumor proliferation and invasion through the NOTCH pathway in cervical cancer cell lines. AB - Contemporary research has focused on the function of long non-coding RNAs (lncRNAs) in carcinogenesis. However, the involvement of the lncRNA, steroid receptor RNA activator (SRA), in cervical carcinogenesis remains to be elucidated. In the present study, we investigated the bio-functional consequences of lncRNA SRA knockdown in vitro. To verify the role of lncRNA SRA in cell proliferation, migration, and invasion, lncRNA RNA interference was utilized to knock down lncRNA SRA expression in cervical cancer cell lines, resulting in our discovery that lncRNA SRA knockdown inhibited cell proliferation, cell migration and tumor invasion in the cervical cancer cell lines. Additionally, in vitro experiments using the lncRNA SRA-knockdown cervical cancer cell lines revealed that lncRNA SRA is a strong inducer and modulator of the expression of genes related to epithelial-mesenchymal transition and the NOTCH signaling pathway. In conclusion, our findings demonstrated that lncRNA SRA is highly correlated with cancer progression and cervical cancer cell proliferation and migration. Furthermore, these results indicate that lncRNA SRA may be a potential therapeutic target and prognostic marker for cervical malignancy. PMID- 29039614 TI - Substitutions of rtL228 and/or L229 are involved in the regulation of replication and HBsAg secretion in hepatitis B virus, and do not affect susceptibility to nucleos(t)ide analogs. AB - Nucleos(t)ide analogs (NAs) are widely used in the treatment of hepatitis B virus (HBV) and human immunodeficiency virus (HIV). The mutation L210W of HIV-1 reverse transcriptase (RT) is one of the six principal mutations which confer in vivo resistance to zidovudine. Due to the similar 3D-structure and high conservation between HIV-RT and HBV-RT, the present study aimed to clarify whether corresponding mutations in HBV may decrease its susceptibility to relevant NAs. Mutations including rtL228C/W, rtL229W and rtL228W/L229W were introduced into a HBV replication competent plasmid by fusion polymerase chain reaction. Replication capacity, HBs/e antigen (Ag) levels and susceptibility to NAs were subsequently analyzed in vitro. Single or combination mutations of rtL228 and rtL229 impaired HBV replication. Decreased HBsAg secretion in the supernatant and production in the cell lysate wasobserved with single rtL229W or in combination with rtL228W, while there was no significant difference between wild-type and mutant HBV with regard to the level of HBeAg in the supernatant and susceptibility to commonly-used NAs. Substitution mutations of rtL228 and/or L229 in HBV did not alter the susceptibility of the virus to NAs, although replication and HBsAg secretion were affected. PMID- 29039613 TI - Staphylococcus aureus colonisation in patients from a primary regional hospital. AB - Staphylococcus aureus (SA or S. aureus) is a common pathogen that leads to local and systemic infections in communitarian and hospitalised patients. Staphylococcus colonizing nasal or pharyngeal sites can become virulent and cause severe infections. In this study, we collected 322 pharyngeal exudates and 142 nasal exudates from hospitalised and outpatients for screening purposes. The carriage rates in the pharynx were 27.06% for S. aureus, 11.55% for methicillin resistant S. aureus (MRSA) and 5.61% for methicillin-oxacillin resistant S. aureus (MORSA). The carriage rates in the nose were 35.38% for S. aureus, 18.46% for MRSA and 13.85% for MORSA. The median multiple antibiotic resistance (MAR) index of SA was 33.33%. The MAR of MRSA was significantly higher than that of methicillin-susceptible strains (MSSA) (45.45% vs. 18.75%, P<0.0001) and the MAR of MORSA was 57.14%. Hierarchical clustering analysis revealed differences in the resistance of methicillin-sensitive, MRSA and MORSA strains. On the whole, our study demonstrates the pattern of distribution of nasal and pharyngeal colonisation with SA, MRSA and MORSA in adults vs. children, inpatients vs. outpatients, ICU patients vs. non-ICU patients, and females vs. males, which can be used for adjusting the screening and decontamination protocols in a hospital. SA is a pervasive pathogen with constantly changing trends in resistance and epidemiology and thus requires constant monitoring in healthcare facilities. PMID- 29039615 TI - Effects of deferoxamine on the osteogenic differentiation of human periodontal ligament cells. AB - Hypoxia regulates a number of cell biological processes, including cell survival, development and differentiation. Deferoxamine (DFO), an oral chelator for blood transfusion patients, has been demonstrated to induce hypoxia and is frequently used as a hypoxia-mimicking agent. The purpose of the present study was to investigate the influence of DFO on the proliferation, migration and osteogenic differentiation of human periodontal ligament cells (hPDLCs). The effects of DFO on hPDLC viability and migration were measured using an MTT and wound healing assay. To characterize the hypoxia microenvironment, the expression of hypoxia inducible factor-1alpha (HIF-1alpha) in hPDLCs treated with DFO was quantified using the reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Subsequently, the osteogenic differentiation potential of DFO was determined by RT-qPCR of the mRNA of osteogenic markers (runt-related transcription factor 2 [Runx-2], osteopontin [OPN] and collagen type I [Col-1]). The alkaline phosphatase activity and mineral deposition were analyzed using alizarin red S staining. The MTT and wound healing assays demonstrated that low-concentrations of DFO had little impact on hPDLC viability and migration 48 h into the treatment. DFO upregulated the expression of hPDLC genes specific for osteogenic differentiation: HIF-1alpha, Runx-2, OPN and Col-1. Furthermore, formation of mineralized nodules was enhanced by DFO. The present study suggests that DFO provided favorable culture conditions to promote the osteogenic differentiation and mineralization of hPDLCs. The mechanism underlying these alterations remains to be elucidated. PMID- 29039616 TI - Cisplatin-induced autophagy protects breast cancer cells from apoptosis by regulating yes-associated protein. AB - Breast cancer is a common cause of cancer-related deaths in women. Treatment with cisplatin exhibits some therapeutic efficacy. However, treatment optimization is required, and the mechanisms underlying the cisplatin's proapoptotic effects remain unclear. In the present study, we demonstrated that cisplatin induced apoptosis and autophagy in breast cancer cells. Autophagy induced by cisplatin played a protective role in breast cancer cells, which impaired its proapoptotic effect. Mechanistically, for the first time, we found that cisplatin treatment activated the MAPK signaling pathway and promoted autophagy via the ERK signaling pathway. Notably, we found that nuclear translocation of yes-associated protein (YAP) was regulated by cisplatin-induced autophagy, and we identified YAP as a survival input that promoted survival in cisplatin-treated breast cancer cells. These findings revealed that administration of cisplatin along with an autophagy inhibitor is a promising therapeutic strategy for treating breast cancer. PMID- 29039617 TI - The electrical properties and glass transition of some dental materials after temperature exposure. AB - The physicochemical properties of dental materials will remain stable only when these materials in question are resistant to the changes in the oral cavity. The oral environment is subject to large temperature variations. The aim of the study was the assessment of electrical properties and glass transition of some dental materials after temperature exposure. Composite materials, compomers, materials for temporary prosthetic replacement and resin-based pit and fissure sealants were used in the study. The method used was electric conductivity of materials under changing temperature. The order of materials presenting the best characteristics for insulators was as follows: materials for temporary prosthetic replacement, resin-based pit and fissure sealants, composites, and compomers. Thanks to comparisons made between graphs during I and II heating run, the method could be used to observe changes in the heated material and determine whether the changes observed are reversible or permanent. The graphs also provided temperature values which contain information on glass transition during heating. In the oral cavity the effect of the constant temperature stimulus influences maturity of dental materials and improves their properties. But high temperatures over glass transition temperature can cause irreversible deformation and changes of the materials properties, even in a short time. PMID- 29039618 TI - Sterilizing photocurable materials by irradiation: preserving UV-curing properties of photopolymers following E-beam, gamma, or X-ray exposure. AB - We have developed novel photopolymer gels to function as separators in blood collection tubes. By incorporating antioxidants such as alpha-tocopherol and nitroxides (TEMPO and TEMPOL), the new formulation can be sterilized with electron beam or gamma rays at a dose level of 17 kGy, without inducing premature curing of the photopolymers. For the blood separator gels that contain alpha tocopherol, our results show that alpha-tocopherol plays a decisive role in impeding C-centered free radical propagation reactions through an H-transfer mechanism. This mechanism involves the transfer of an H-atom from the hydroxyl group (OH) of alpha-tocopherol to the propagating C-centered radical leading to the termination of the polymerization. The sterilization radiation-induced premature curing of the photopolymer was also prevented in the blood separator gel containing nitroxides. For the gels containing TEMPO or TEMPOL, inhibition of the premature curing was achieved through an addition reaction or an H-transfer reaction, respectively. Our results also show that while alpha-tocopherol is not a contributing factor in the subsequent (time-of-use) UV curing of the gels, nitroxides enhance the UV curing process through nitroxide-mediated living free radical polymerization reactions leading to a decrease in UV curing time. The photopolymer separator gels are shown to function advantageously in clinical laboratory testing, especially for cell-free DNA measurements in blood. PMID- 29039619 TI - Evaluation of corrosion behavior in artificial saliva of 2507 and 2205 duplex stainless steel for orthodontic wires before and after heat treatment. AB - The present study investigates comparison between corrosion behavior of 2507 and 2205 DSS in artificial saliva for orthodontic wires. The heat treatment is necessary for 2507 and 2205 duplex stainless steel to remove or dissolve intermetallic phases, removed segregation and to relieve any residual thermal stress in DSS which may be formed during production processes. The corrosion behavior of a 2507 and 2205 DSS in artificial saliva was studied by SEM, HV test and potentiodynamic measurements. The results indicate that the corrosion resistance mainly depends on presence of secondary phases (sigma phase) and ferrite /austenite ratio, it's revealed that the corrosion resistance of 2507 DSS higher than 2205 DSS in artificial saliva at 37 degrees C. PMID- 29039620 TI - Preoperative Genetic Testing and Personalized Medicine: Changing the Care Paradigm. PMID- 29039621 TI - Supporting Emergency Medical Care Teams with an Integrated Status Display Providing Real-Time Access to Medical Best Practices, Workflow Tracking, and Patient Data. AB - The work of a hospital's medical staff is safety critical and often occurs under severe time constraints. To provide timely and effective cognitive support to medical teams working in such contexts, guidelines in the form of best practice workflows for healthcare have been developed by medical organizations. However, the high cognitive load imposed in such stressful and rapidly changing environments poses significant challenges to the medical staff or team in adhering to these workflows. In collaboration with physicians and nurses from Carle Foundation Hospital, we first studied and modeled medical team's individual responsibilities and interactions in cardiac arrest resuscitation and decomposed their overall task into a set of distinct cognitive tasks that must be specifically supported to achieve successful human-centered system design. We then developed a medical Best Practice Guidance (BPG) system for reducing medical teams' cognitive load, thus fostering real-time adherence to best practices. We evaluated the resulting system with physicians and nurses using a professional patient simulator used for medical training and certification. The evaluation results point to a reduction of cognitive load and enhanced adherence to medical best practices. PMID- 29039623 TI - The challenge of Takotsubo syndrome: heterogeneity of clinical features. AB - Takotsubo syndrome (TTS) was first described in 1991 as a rare, spontaneous and completely reversible left ventricular regional systolic dysfunction. Today the incidence of TTS is estimated at 2% in patients with an initial diagnosis of acute coronary syndrome (ACS). Notably, the incidence can be as high as 5.9 to 7.5% in female patients. TTS occurs predominantly in postmenopausal women, but both sexes may be affected, at any age. Acute chest pain or dyspnoea is a characteristic symptom of TTS, but initial presentation can also include more severe disease manifestation such as acute heart failure with pulmonary oedema or haemodynamic instability, especially in an in-hospital setting. It is now known that TTS is triggered by not only emotional, but also physical stressors, or a combination of both. Although apical ballooning is the most frequent and typical finding on imaging, different types of TTS have been described, including the midventricular, basal and focal forms. The acute phase of TTS may be complicated by cardiogenic shock, left ventricular outflow tract obstruction, severe mitral valve regurgitation, embolisation of ventricular thrombi and life-threatening ventricular arrhythmias. Furthermore, although originally thought to be a completely reversible condition, the long-term prognosis of TTS is not entirely positive, with a major adverse cardiac and cerebrovascular event (MACCE) rate of 9.9% reported in the InterTAK Registry, the largest series of patients with TTS. The exact aetiology of TTS remains unknown, there are no current treatment guidelines and differential diagnosis from the more frequent ACS entities remains particularly challenging. Overall, TTS remains a poorly understood and under diagnosed disease, sometimes disguised in clinically atypical presentations. This review presents different TTS cases to illustrate that TTS is a heterogeneous disease. PMID- 29039622 TI - Quality of vitamin K antagonist oral anticoagulation in 322 patients with atrial fibrillation - real-life data from a survey in Eastern Switzerland. AB - AIM OF THE STUDY: To better appreciate the role of the non-vitamin K oral anticoagulants (NOACs) for patients with non-valvular atrial fibrillation in Switzerland we aimed to assess the quality of vitamin K antagonist (VKA) anticoagulation in daily practice. METHODS: In a cross-sectional study, clinically stable patients on VKA treatment for non-valvular atrial fibrillation for at least 6 months, documentation of international normalised ratio (INR) values for at least 3 months and with at least two INR values were included. The percentage of INR values within the therapeutic range of 2.0 to 3.0 and the time in therapeutic range (TTR; Rosendaal method) and predictors for these measures of VKA anticoagulation quality were assessed. RESULTS: We studied 332 patients (62% male, mean age 74 +/- 9 years) with median (interquartile range) CHA2DS2Vasc and HAS-BLED scores of 4 (3-5) and 3 (2-4) points. The median number of INR values per patient was 8 (5-14), and the average interval between INR measurements was 20 (13-27) days. The percentage of INR values between 2.0 and 3.0 was 67% (50 83%). The median TTR was 69% (51-89%), and TTR >=65% was found in 202 (61%) patients. Independent predictors of >=80% INR values between 2.0 and 3.0 included a longer interval between INR measurements and the non-use of spironolactone. The non-use of amiodarone and spironolactone and a longer interval between INR measurements were the only independent predictors of a TTR >=65%. CONCLUSIONS: The quality of VKA anticoagulation in Switzerland is highly variable. Importantly, only 60% of patients achieve a TTR >=65%, which is currently considered to be the minimal acceptable TTR required for VKA therapy. There are few clinical predictors of a good VKA anticoagulation quality. These data may represent a novel basis for decision making regarding the choice of anticoagulation for atrial fibrillation in Switzerland. PMID- 29039624 TI - Factors associated with cessation of smoking among Swiss adults between 1991 and 2011: results from the SAPALDIA cohort. AB - INTRODUCTION: Smoking is still the most preventable cause of disease and premature death in Switzerland, as elsewhere. We aimed to assess the main determinants of smoking cessation in the population-based cohort of SAPALDIA (Swiss Cohort Study on Air Pollution and Lung and Heart Diseases in Adults). METHODS: The SAPALDIA study was initiated in 1991 with 9651 participants aged 18 to 60 years from eight areas (S1). Follow-up assessments were conducted in 2002 (S2; 8047 participants) and 2010/11 (S3; 6088 participants). At each survey, detailed information on health and potential health-related factors was collected and lung function measured. Using logistic regression, we assessed predictors of smoking cessation between S1 and S2 and between S2 and S3. RESULTS: In both periods, highest educational level (summary odds ratio [OR] 1.49, 95% confidence interval [CI] 1.08-2.06; ref. lowest level), FEV1/FVC <0.5 (OR 6.19, 95% CI 2.44 15.7, ref. FEV1/FVC >=0.7), higher age in men (OR 1.02, 95% CI 1.01-1.03, per year) and overweight (OR 1.38, 95% CI 1.16-1.64) were significant predictors of smoking cessation. Nicotine dependence (OR 0.97, 95% CI 0.96-0.98, per cigarette smoked a day) and female sex between age 45 and 60 (e.g., OR 0.74, 95% CI 0.61 0.91, at age 50) were negatively associated with smoking cessation. Moreover, smokers at S2 reporting a diagnosis of depression were less likely to quit smoking by S3 (OR 0.53, 95% CI 0.30-0.93). CONCLUSIONS: Prospective tobacco control policies in Switzerland should be addressed to women, younger persons and persons of lower education. PMID- 29039625 TI - Genetic determinants of the epigenome in development and cancer. AB - Although we have detailed maps of epigenetic marks on DNA and chromatin for many cell types and disease states, the origin and significance of these patterns is incompletely understood. Deregulation of the epigenome is a frequent accompaniment to cancer, and it is therefore important that we learn how it contributes to tumour formation. Here it is proposed that the roles of DNA sequence signals as determinants of the epigenome have been underappreciated. Taking as a paradigm the part played by the dinucleotide CpG in regulating gene expression via its effects on the epigenome, it is suggested that factors recognising other short, frequent sequence motifs also recruit chromatin modifying enzymes in response to DNA sequence. A screen for factors of this kind promises to aid our understanding of the mechanisms by which gene activity is globally regulated. PMID- 29039626 TI - An appreciation of Sir Adrian Peter Bird: winner of the Charles Rodolphe Brupbacher Prize for Cancer Research 2017. PMID- 29039627 TI - Beliefs, endorsement and application of homeopathy disclosed: a survey among ambulatory care physicians. AB - BACKGROUND: Explanation models for the effectiveness of homeopathy are not supported by natural sciences and the aggregated evidence from clinical trials is unconvincing. From this standpoint, placebo effects seem the most obvious explanation for the therapeutic effects experienced in homeopathy. Still, many physicians continue to prescribe homeopathic treatments. OBJECTIVES: Whether physicians who prescribe homeopathic treatments aim to achieve placebo effects or actually believe in specific effects is poorly understood. However, this distinction has important educational and ethical implications. Therefore, we aimed to describe the use of homeopathy among physicians working in outpatient care, factors associated with prescribing homeopathy, and the therapeutic intentions and attitudes involved. METHODS: All physicians working in outpatient care in the Swiss Canton of Zurich in the year 2015 (n = 4072) were approached. Outcomes of the study were: association of prescribing homeopathy with medical specialties (odds ratios [OR] and 95% confidence intervals [95% CI] from multivariable logistic regression); intentions behind prescriptions (to induce specific or nonspecific/placebo effects); level of agreement with specific attitudes; and views towards homeopathy including explanatory models, rating of homeopathy's evidence base, the endorsement of indications, and reimbursement of homeopathic treatment by statutory health insurance providers. RESULTS: The participation rate was 38%, mean age 54 years, 61% male, and 40% specialised in general internal medicine. Homeopathy was prescribed at least once a year by 23% of the respondents. Medical specialisations associated with prescribing homeopathy were: no medical specialisation (OR 3.9; 95% CI 1.7-9.0), specialisation in paediatrics (OR 3.8 95% CI 1.8-8.0) and gynaecology/obstetrics (OR 3.1 95% CI 1.5-6.7). Among prescribers, only 50% clearly intended to induce specific homeopathic effects, only 27% strongly adhered to homeopathic prescription doctrines, and only 23% thought there was scientific evidence to prove homeopathy's effectiveness. Seeing homeopathy as a way to induce placebo effects had the strongest endorsement among prescribers and non-prescribers of homeopathy (63% and 74% endorsement respectively). Reimbursement of homeopathic remedies by statutory health insurance was rejected by 61% of all respondents. CONCLUSION: Medical specialties use homeopathy with significantly varying frequency and only half of the prescribers clearly intend to achieve specific effects. Moreover, the majority of prescribers acknowledge that effectiveness is unproven and give little importance to traditional principles behind homeopathy. Medical specialties and associated patient demands but also physicians' openness towards placebo interventions may play a role in homeopathy prescriptions. Education should therefore address not only the evidence base of homeopathy, but also ethical dilemmas with placebo interventions. PMID- 29039628 TI - Early versus late initiation of renal replacement therapy in patients with acute kidney injury: a meta-analysis of randomised clinical trials. AB - AIMS OF THE STUDY: The optimal timing of renal replacement therapy (RRT) initiation in acute kidney injury (AKI) remains a matter of debate. A systematic review and meta-analysis of randomised controlled trials (RCTs) was conducted to better estimate the effects of early initiation of RRT compared with late initiation of RRT among patients with AKI and in patients at risk for AKI. METHODS: A Medline literature research was conducted in PubMed for RCTs in adult patients with AKI that compared different RRT initiation strategies (early vs late). The meta-analysis outcomes were in-hospital or <=60 day mortality, and renal recovery. RESULTS: Nine trials meeting inclusion criteria and four trials investigating preventive dialysis in patients at risk for AKI were identified. Early initiation of RRT was not associated with reduced in-hospital or 60-day mortality: risk ratio (RR) 0.91, 95% confidence interval (CI) 0.72-1.16, p = 0.46, I2 = 49%). When only the four trials that offered RRT within 6 to 12 hours of eligibility were included in the analysis, the results were similar (RR 0.93, 95% CI 0.82-1.06) without significant heterogeneity. The percentage of patients among survivors who recovered enough kidney function to be off dialysis was similar with early compared with late RRT: RR 1.02, 95% CI 0.99-1.06, p = 0.16. Early initiation of RRT was associated with higher incidence of catheter-related infections: RR 1.82, 95% CI 1.03-3.21, p = 0.04. No survival benefit was identified in patients undergoing preventive dialysis: RR 0.85 (95% CI 0.52-1.41, p = 0.54). CONCLUSIONS: Early RRT in patients with AKI (or at risk for AKI) does not appear to provide a significant reduction in mortality rates compared with late RRT. The data did not suggest any apparent impact on renal recovery with early dialysis. PMID- 29039629 TI - Adolescents' contraception continuation in Switzerland: a prospective observational study. AB - BACKGROUND: Securing the adherence over time to contraception by adolescent girls is a challenge. Until now little was known about this topic in Switzerland. The aim of our study was to determine contraceptive continuation rates among adolescents in this country and assess possible predictive factors for discontinuation. METHODS: A prospective observational cohort study of 12- to 19 year-old girls starting contraception was performed. Patients were interviewed again after 1 year by phone, email or postal mail. RESULTS: A total of 204 patients were included, of whom 85.8% chose a combined oestrogen-progestogen pill. The answer rate 1 year later was 71%. Among these, continuation of the initially prescribed contraceptive method was observed in 73.1%. Factors statistically affecting the continuation rate were the initial contraceptive method, the place of residence and sexual activity after 1 year. Classification of contraceptive methods in decreasing order of continuation rate was the following: long acting reversible contraception (LARC) methods, oestrogen progestogen pills, injections, progestogen pills, patches and rings. Major reasons reported for stopping the prescribed contraceptive method were ending sexual relations (54.3%), developing side effects (34.3%) or changing to another contraceptive method (22.9%). Neither age, nationality, smoking, occupation, nor the legal representative's knowledge of the contraception influenced adherence. CONCLUSION: Contraceptive continuation rate was high among the adolescent population studied. The only predictive factor of discontinuation was the contraceptive method. Our study also reveals that respecting teenagers' confidentiality is essential as it does not negatively impact the continuation rate. The significant impact of the type of contraception on continuation rates stresses the importance of individualised counselling. PMID- 29039631 TI - Well-Being Hurts. PMID- 29039630 TI - Impairment of the chondrogenic phase of endochondral ossification in vivo by inhibition of cyclooxygenase-2. AB - Many studies have reported on the effects of cyclooxygenase-2 (COX-2) inhibition on osteogenesis. However, far less is known about the effects of COX-2 inhibition on chondrogenic differentiation. Previous studies conducted by our group show that COX-2 inhibition influences in vitro chondrogenic differentiation. Importantly, this might have consequences on endochondral ossification processes occurring in vivo, such as bone fracture healing, growth plate development and ectopic generation of cartilage. The goal of our study was to investigate, in vivo, the effect of COX-2 inhibition by celecoxib on the cartilaginous phase of three different endochondral ossification scenarios. 10 mg/kg/day celecoxib or placebo were orally administered for 25 d to skeletally-immature New Zealand White rabbits (n = 6 per group). Endochondral ossification during fracture healing of a non-critical size defect in the ulna, femoral growth plate and ectopically-induced cartilaginous tissue were examined by radiography, micro computed tomography (u-CT), histology and gene expression analysis. Celecoxib treatment resulted in delayed bone fracture healing, alterations in growth plate development and progression of mineralisation. In addition, chondrogenic differentiation of ectopically-induced cartilaginous tissue was severely impaired by celecoxib. In conclusion, we found that celecoxib impaired the chondrogenic phase of endochondral ossification. PMID- 29039632 TI - If Your Life Depended on It. PMID- 29039633 TI - Genetic Links Discovered For Facial Size and Shape. PMID- 29039634 TI - Researchers Push for Improved Treatment of Facial Pain. PMID- 29039635 TI - Bacteria Caused By Smokeless Tobacco Creates Health Issues. PMID- 29039636 TI - Shape of a Virus Changes When Invading a Host Cell. PMID- 29039637 TI - Peri-Implant Soft Tissue Augmentation in a Mild Smoker: A Surgical-Prosthetic Approach Using a Subepithelial CT Graft With Coronal Anchoring Sutures and a Zirconia Abutment. AB - This report presents the use of a CT graft to augment the periimplantsoft tissue at time of abutment placement in a smoker using coronalanchoring sutures around a zirconia abutment. Soft tissue augmentation at thetime of abutment connection, avoiding abutment removal after CT grafting, useof a zirconia abutment and placement of coronal anchoring sutures might be therecommended approach when dealing with such esthetic challenges. PMID- 29039638 TI - A Citywide Assessment of Oral Hygiene Needs of 5- to 7-Year-Old Children. AB - The purpose of this study was to assess the oral hygiene needs of 6,957kindergarten and first-grade children enrolled in the San Bernardino City UnifiedSchool District. The findings from this study revealed that 9 percent of first-gradersdid not own a toothbrush, 15 percent shared a toothbrush and 25.3 percent self-reportedmouth pain. In one school, 30 percent of the first-graders did not own atoothbrush and overall 38 percent of kindergarteners shared a toothbrush. PMID- 29039639 TI - Orthodontic Services Provided by Pediatric Dentists in California. AB - A survey was conducted in 2013 to document trends inorthodontic treatment provided by members of the California Society ofPediatric Dentistry (CSPD). A 21 item survey was mailed to all activemembers of CSPD. Active members of CSPD spent less time and treatedfewer orthodontic conditions in their practice. PMID- 29039640 TI - High-Performance Ultraviolet-to-Infrared Broadband Perovskite Photodetectors Achieved via Inter-/Intraband Transitions. AB - A high-performance vertically injected broadband UV-to-IR photodetector based on Gd-doped ZnO nanorods (NRs)/CH3NH3PbI3 perovskite heterojunction was fabricated on metal substrates. Our perovskite-based photodetector is sensitive to a broad spectral range, from ultraviolet to infrared light region (lambda = 250-1357 nm). Such structure leads to a high photoresponsivity of 28 and 0.22 A/W, for white light and IR illumination, respectively, with high detectivity values of 1.1 * 1012 and 9.3 * 109 Jones. Optical characterizations demonstrate that the IR detection is due to intraband transition in the perovskite material. Metal substrate boosts carrier injection, resulting in higher responsivity compared to the conventional devices grown on glass, whereas the presence of Gd increases the ZnO NRs performance. For the first time, the perovskite-based photodetector is demonstrated to extend its detection capability to IR (>1000 nm) with high room temperature responsivity across the detected spectrum, leading to a high performance ingenious cost-effective UV-to-IR broadband photodetector design for large-scale applications. PMID- 29039641 TI - Individual Nanoporous Carbon Spheres with High Nitrogen Content from Polyacrylonitrile Nanoparticles with Sacrificial Protective Layers. AB - Functional nanoporous carbon spheres (NPC-S) are important for applications ranging from adsorption, catalysis, separation to energy storage, and biomedicine. The development of effective NPC-S materials has been hindered by the fusion of particles during the pyrolytic process that results in agglomerated materials with reduced activity. Herein, we present a process that enables the scalable synthesis of dispersed NPC-S materials by coating sacrificial protective layers around polyacrylonitrile nanoparticles (PAN NPs) to prevent interparticle cross-linking during carbonization. In a first step, PAN NPs are synthesized using miniemulsion polymerization, followed by grafting of 3 (triethoxysilyl)propyl methacrylate (TESPMA) to form well-defined core-shell structured PAN@PTESPMA nanospheres. The cross-linked PTESPMA brush layer suppresses cross-linking reactions during carbonization. Uniform NPC-S exhibiting diameters of ~100 nm, with relatively high accessible surface area (~424 m2/g), and high nitrogen content (14.8 wt %) was obtained. When compared to a regular nanoporous carbon monolith (NPC-M), the nitrogen-doped NPC-S demonstrated better performance for CO2 capture with a higher CO2/N2 selectivity, an increased efficiency in catalytic oxygen reduction reactions, as well as improved electrochemical capacitive behavior. This miniemulsion polymerization-based strategy for the preparation of functional PAN NPs provides a new, facile approach to prepare high-performance porous carbon spheres for diverse applications. PMID- 29039642 TI - Self-Powered Nanocomposites under an External Rotating Magnetic Field for Noninvasive External Power Supply Electrical Stimulation. AB - Electrical stimulation in biology and gene expression has attracted considerable attention in recent years. However, it is inconvenient that the electric stimulation needs to be supplied an implanted power-transported wire connecting the external power supply. Here, we fabricated a self-powered composite nanofiber (CNF) and developed an electric generating system to realize electrical stimulation based on the electromagnetic induction effect under an external rotating magnetic field. The self-powered CNFs generating an electric signal consist of modified MWNTs (m-MWNTs) coated Fe3O4/PCL fibers. Moreover, the output current of the nanocomposites can be increased due to the presence of the magnetic nanoparticles during an external magnetic field is applied. In this paper, these CNFs were employed to replace a bullfrog's sciatic nerve and to realize the effective functional electrical stimulation. The cytotoxicity assays and animal tests of the nanocomposites were also used to evaluate the biocompatibility and tissue integration. These results demonstrated that this self-powered CNF not only plays a role as power source but also can act as an external power supply under an external rotating magnetic field for noninvasive the replacement of injured nerve. PMID- 29039643 TI - Exploring the pH Sensitivity of Poly(allylamine) Phosphate Supramolecular Nanocarriers for Intracellular siRNA Delivery. AB - Silencing RNA (siRNA) technologies emerge as a promising therapeutic tool for the treatment of multiple diseases. An ideal nanocarrier (NC) for siRNAs should be stable at physiological pH and release siRNAs in acidic endosomal pH, fulfilling siRNA delivery only inside cells. Here, we show a novel application of polyamine phosphate NCs (PANs) based on their capacity to load negatively charged nucleic acids and their pH stability. PANs are fabricated by complexation of phosphate anions from phosphate buffer solution (PB) with the amine groups of poly(allylamine) hydrochloride as carriers for siRNAs. PANs are stable in a narrow pH interval, from 7 to 9, and disassemble at pH's higher than 9 and lower than 6. siRNAs are encapsulated by complexation with poly(allylamine) hydrochloride before or after PAN formation. PANs with encapsulated siRNAs are stable in cell media. Once internalized in cells following endocytic pathways, PANs disassemble at the low endosomal pH and release the siRNAs into the cytoplasm. Confocal laser scanning microscopy (CLSM) images of Rhodamine Green labeled PANs (RG-PANs) with encapsulated Cy3-labeled siRNA in A549 cells show that siRNAs are released from the PANs. Colocalization experiments with labeled endosomes and either labeled siRNAs prove the translocation of siRNAs into the cytosol. As a proof of concept, it is shown that PANs with encapsulated green fluorescence protein (GFP) siRNAs silence GFP in A549 cells expressing this protein. Silencing efficacy was evaluated by flow cytometry, CLSM, and Western blot assays. These results open the way for the use of poly(allylamine) phosphate nanocarriers for the intracellular delivery of genetic materials. PMID- 29039644 TI - Laponite-Based Surfaces with Holistic Self-Cleaning Functionality by Combining Antistatics and Omniphobicity. AB - In the present work, perfluoroalkylated laponite nanoparticles with a high degree of functionalization (60 wt %) have been prepared and a methodology to prepare transparent, antistatic, and omniphobic laponite-based films with holistic self cleaning properties against liquids, solids and liquid-solid mixtures has been developed. The intrinsic electrical and ionic conductivities observed in unmodified laponite coatings are combined with perfluoroalkyl-modified laponite clays. As a result, films with improved self-cleaning functionality based on dust repellency and omniphobic liquid-repellence (sheet resistance in the range of 107 Omega/? and contact angles of 106 degrees (H2O) and 93 degrees (oil)) were obtained. These unique films, being capable to repel dust and liquids, were applied to a variety of substrates (i.e., glass and plastics) and tested against solids and liquids of different nature with excellent performance. Bending tests of these holistic self-cleaning films deposited over flexible substrates showed better mechanical performance than unmodified laponite films. PMID- 29039645 TI - Blue Quantum Dot Light-Emitting Diodes with High Electroluminescent Efficiency. AB - High-efficiency blue CdSe/ZnS quantum dots (QDs) have been synthesized for display application with emission peak over 460 nm with the purpose of reducing the harmful effect of short-wavelength light to human eyes. To reach a better charge balance, different size ZnO nanoparticles (NPs) were synthesized and electrical properties of ZnO NPs were analyzed. Quantum dot light-emitting diodes (QLEDs) based on as-prepared blue QDs and optimized ZnO NPs have been successfully fabricated. Using small-size ZnO NPs, we have obtained a maximum current efficiency (CE) of 14.1 cd A-1 and a maximum external quantum efficiency (EQE) of 19.8% for QLEDs with an electroluminescence (EL) peak at 468 nm. To the best of our knowledge, this EQE is the highest value in comparison to the previous reports. The CIE 1931 color coordinates (0.136, 0.078) of this device are quite close to the standard (0.14, 0.08) of National Television System Committee (NTSC) 1953. The color saturation blue QLEDs show great promise for use in next-generation full-color displays. PMID- 29039646 TI - Proteomics-Based Tools for Evaluation of Cell-Free Protein Synthesis. AB - Cell-free protein synthesis (CFPS) has the potential to produce enzymes, therapeutic agents, and other proteins, while circumventing difficulties associated with in vivo heterologous expression. However, the contents of the cell-free extracts used to carry out synthesis are generally not characterized, which hampers progress toward enhancing yield or functional activity of the target protein. We explored the utility of mass spectrometry (MS)-based proteomics for characterizing the bacterial extracts used for transcribing and translating gene sequences into proteins as well as the products of CFPS reactions. Full proteome experiments identified over 1000 proteins per reaction. The complete set of proteins necessary for transcription and translation were found, demonstrating the ability to define potential metabolic capabilities of the extract. Further, MS-based techniques allowed characterization of the CFPS product and provided insight into the synthesis reaction and potential functional activity of the product. These capabilities were demonstrated using two different CFPS products, the commonly used standard green fluorescent protein (GFP, 27 kDa) and the polyketide synthase DEBS1 (394 kDa). For the large, multidomain DEBS1, substantial premature termination of protein translation was observed. Additionally, MS/MS analysis, as part of a conventional full proteomics workflow, identified post-translational modifications, including the chromophore in GFP, as well as the three phosphopantetheinylation sites in DEBS1. A hypothesis-driven approach focused on these three sites identified that all were correctly modified for DEBS1 expressed in vivo but with less complete coverage for protein expressed in CFPS reactions. These post-translational modifications are essential for functional activity, and the ability to identify them with mass spectrometry is valuable for judging the success of the CFPS reaction. Collectively, the use of MS-based proteomics will prove advantageous for advancing the application of CFPS and related techniques. PMID- 29039647 TI - Co Nanoparticles Encapsulated in N-Doped Carbon Nanosheets: Enhancing Oxygen Reduction Catalysis without Metal-Nitrogen Bonding. AB - It is known that introducing metal nanoparticles (e.g., Fe and Co) into N-doped carbons can enhance the activity of N-doped carbons toward the oxygen reduction reaction (ORR). However, introducing metals into N-doped carbons inevitably causes the formation of multiple active sites. Thus, it is challenging to identify the active sites and unravel mechanisms responsible for enhanced ORR activity. Herein, by developing a new N-heterocyclic carbene (NHC)-Co complex as the nitrogen- and metal-containing precursor, we report the synthesis of N-doped carbon nanosheets embedded with Co nanoparticles as highly active ORR catalysts without direct metal-nitrogen bonding. Electrochemical measurements and X-ray absorption spectroscopy indicate that the carbon-nitrogen sites surrounding Co nanoparticles are responsible for the observed ORR activity and stability. Density functional theory calculations further reveal that Co nanoparticles could facilitate the protonation of O2 and thus promote the ORR activity. These results provide new prospects in the rational design and synthesis of heteroatom-doped carbon materials as non-precious-metal catalysts for various electrochemical reactions. PMID- 29039648 TI - Modular Elastomer Photoresins for Digital Light Processing Additive Manufacturing. AB - A series of photoresins suitable for the production of elastomeric objects via digital light processing additive manufacturing are reported. Notably, the printing procedure is readily accessible using only entry-level equipment under ambient conditions using visible light projection. The photoresin formulations were found to be modular in nature, and straightforward adjustments to the resin components enabled access to a range of compositions and mechanical properties. Collectively, the series includes silicones, hydrogels, and hybrids thereof. Printed test specimens displayed maximum elongations of up to 472% under tensile load, a tunable swelling behavior in water, and Shore A hardness values from 13.7 to 33.3. A combination of the resins was used to print a functional multimaterial three-armed pneumatic gripper. These photoresins could be transformative to advanced prototyping applications such as simulated human tissues, stimuli responsive materials, wearable devices, and soft robotics. PMID- 29039650 TI - Programmed Nanococktail Based on pH-Responsive Function Switch for Self Synergistic Tumor-Targeting Therapy. AB - Tumor-targeting combination chemotherapy is an important way to improve the therapeutic index and reduce the side effects as compared to traditional cancer treatments. However, one of the major challenges in surface functionalization of nanoparticle (NP) is accomplishing multiple purposes through one single ligand. Upon such consideration, methotrexate (MTX), an anticancer drug with a targeting moiety inspired by the similar structure of folate, could be used to covalently link with lipid-polymer conjugate (DSPE-PEG) via a pH-sensitive dynamic covalent imine (CH?N) bond to synthesize the acid-induced function "targeting-anticancer" switching DSPE-PEG-CH?N-MTX. We hypothesize that using this kind of MTX prodrug to functionalize NP's surface would be conductive to combine the early phase active targeting function and the late-phase anticancer function in one nanosystem. Herein, a nanococktail is programmed for codelivery of epirubicin (EPI) and MTX by co-self-assembly of acid-dissociated EPI-phospholipid (PC) complex and acid-cleavable DSPE-PEG-CH?N-MTX conjugate. The obtained nanococktail (MTX-PEG-EPI-PC NPs) could not only actively target folate receptors overexpressing tumor cells but also respond to acidic endo/lysosomes for triggering the on-demand release of pharmaceutically active EPI/MTX. The intracellular drug distribution also demonstrated that the system could codeliver two drugs to individual target sites of action, inducing the significant synergistic anticancer efficiency based on different anticancer mechanisms. More importantly, the in vivo tumor accumulation and anticancer efficacy of MTX-PEG EPI-PC NPs (via cleavable imine bond) were significantly enhanced as compared to the individual free drug, both free drugs, PEG-EPI-PC NPs, and MTX-PEG-EPI-PC NPs (via the uncleavable amide bond). This self-synergistic tumor-targeting therapy might represent a promising strategy for cancer treatment. PMID- 29039649 TI - Comparative Membrane Proteomics Reveals a Nonannotated E. coli Heat Shock Protein. AB - Recent advances in proteomics and genomics have enabled discovery of thousands of previously nonannotated small open reading frames (smORFs) in genomes across evolutionary space. Furthermore, quantitative mass spectrometry has recently been applied to analysis of regulated smORF expression. However, bottom-up proteomics has remained relatively insensitive to membrane proteins, suggesting they may have been underdetected in previous studies. In this report, we add biochemical membrane protein enrichment to our previously developed label-free quantitative proteomics protocol, revealing a never-before-identified heat shock protein in Escherichia coli K12. This putative smORF-encoded heat shock protein, GndA, is likely to be ~36-55 amino acids in length and contains a predicted transmembrane helix. We validate heat shock-regulated expression of the gndA smORF and demonstrate that a GndA-GFP fusion protein cofractionates with the cell membrane. Quantitative membrane proteomics therefore has the ability to reveal nonannotated small proteins that may play roles in bacterial stress responses. PMID- 29039651 TI - Intracellular Drug Uptake-A Comparison of Single Cell Measurements Using ToF-SIMS Imaging and Quantification from Cell Populations with LC/MS/MS. AB - ToF-SIMS is a label-free imaging method that has been shown to enable imaging of amiodarone in single rat macrophage (NR8383) cells. In this study, we show that the method extends to three other cell lines relevant to drug discovery: human embryonic kidney (HEK293), cervical cancer (HeLa), and liver cancer (HepG2). There is significant interest in the variation of drug uptake at the single cell level, and we use ToF-SIMS to show that there is great diversity between individual cells and when comparing each of the cell types. These single cell measurements are compared to quantitative measurements of cell-associated amiodarone for the population using LC/MS/MS and cell counting with flow cytometry. NR8383 and HepG2 cells uptake the greatest amount of amiodarone with an average of 2.38 and 2.60 pg per cell, respectively, and HeLa and Hek 293 have a significantly lower amount of amiodarone at 0.43 and 0.36 pg per cell, respectively. The amount of cell-associated drug for the ensemble population measurement (LC/MS/MS) is compared with the ToF-SIMS single cell data: a similar amount of drug was detected per cell for the NR8383, and HepG2 cells at a greater level than that for the HEK293 cells. However, the two techniques did not agree for the HeLa cells, and we postulate potential reasons for this. PMID- 29039652 TI - Insights into Cotranslational Membrane Protein Insertion by Combined LILBID-Mass Spectrometry and NMR Spectroscopy. AB - Cotranslational insertion of membrane proteins into defined nanoparticle membranes has been developed as an efficient process to produce highly soluble samples in native-like environments and to study lipid-dependent effects on protein structure and function. Numerous examples of the structural and functional characterization of transporters, ion channels, or G-protein-coupled receptors in cotranslationally formed nanodisc complexes demonstrate the versatility of this approach, although the basic underlying mechanisms of membrane insertion are mainly unknown. We have revealed the first aspects of the insertion of proteins into nanodiscs by combining cell-free expression, noncovalent mass spectrometry, and NMR spectroscopy. We provide evidence of cooperative insertion of homo-oligomeric complexes and demonstrate the possibility to modulate their stoichiometry by modifying reaction conditions. Additionally, we show that significant amounts of lipid are released from the nanodiscs upon insertion of larger protein complexes. PMID- 29039653 TI - Boric Acid Induced Transient Cross-Links in Lactose-Modified Chitosan (Chitlac). AB - The present paper explores the effect of boric acid on Chitlac, a lactose modified chitosan which had previously shown interesting biological and physical chemical features. The herewith-reported experimental evidences demonstrated that boric acid binds to Chitlac, producing conformational and association effects on the chitosan derivative. The thermodynamics of boric acid binding to Chitlac was explored by means of 11B NMR, circular dichroism (CD), and UV-vis spectroscopy, while macromolecular effects were investigated by means of viscometry and dynamic light scattering (DLS). The experimental results revealed a chain-chain association when limited amounts of boric acid were added to Chitlac. However, upon exceeding a critical boric acid limit dependent on the polysaccharide concentration, the soluble aggregates disentangle. The rheological behavior of Chitlac upon treatment with boric acid was explored showing a dilatant behavior in conditions of steady flow. An uncommonly high dependence in the scaling law between the zero-shear viscosity and the concentration of Chitlac was found, i.e., eta0 ? CCTL5.8, pointing to interesting potential implications of the present system in biomaterials development. PMID- 29039654 TI - A Bottom-Up Synthesis of Vinyl-Cellulose Nanosheets and Their Nanocomposite Hydrogels with Enhanced Strength. AB - Extracted nanocellulose from natural resources commonly requires modification before it is used as an effective nanofiller. In the present study, through an enzymatic polymerization of alpha-d-glucose 1-phosphate from the primer 2 (glucosyloxy)ethyl methacrylate (GEMA), a novel type of two-dimensional methacrylate-containing cellulose nanosheets (CNS) with a thickness of about 6 nm, named as GEMA-CNS, was directly synthesized under a mild condition by a "bottom-up" method. The structure and morphology of GEMA-CNS were characterized by 1H-nuclear magnetic resonance (NMR), matrix-assisted laser desorption/ionization time-of-flight mass spectra (MALDI-TOF MS), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), and atomic force microscopy (AFM). Afterward, the obtained GEMA-CNS was covalently incorporated into poly(ethylene glycol) matrix through thiol-ene Michael addition, fabricating a series of GEMA-CNS-based nanocomposite hydrogels. The addition of GEMA-CNS effectively improved the mechanical strength and altered the internal network structures of hydrogels; additionally, the swelling/biodegradation behaviors of gels in phosphate buffer saline (pH 7.4) at 37 degrees C were affected to some degree. This species of property-tunable hydrogels with GEMA-CNS dosage demonstrates potential applications in tissue engineering. The current presentation opens a new road for direct enzymatic preparation of reactive nanocellulose and its novel applications in nanocomposite materials. PMID- 29039655 TI - Dimerization and Long-Range Repulsion Established by Both Termini of the Microtubule-Associated Protein Tau. AB - Tau is a microtubule-associated protein found in neuronal axons that has several well-known functions, such as promoting microtubule polymerization, stabilizing microtubules against depolymerization, and spatially organizing microtubules in axons. Two contrasting models have been previously described to explain tau's ability to organize the spacing between microtubules: complementary dimerization of the projection domains of taus on adjacent microtubules or tau's projection domain acting as a polyelectrolyte brush. In this study, atomic force microscopy was used to interrogate intermolecular interactions between layers of tau protein immobilized on mica substrates and on silicon nitride atomic force microscope tips. On these surfaces, tau adopts an orientation comparable to that when bound to microtubules, with the basic microtubule binding domain immobilized and the acidic domains extending into solution. Force-distance curves collected via atomic force microscopy reveal that full length human tau, when assembled into dense surface-bound layers, can participate in attractive electrostatic interactions consistent with the previously reported dimerization model. However, modulating the ionic strength of the surrounding solution can change the structure of these layers to produce purely repulsive interactions consistent with a polyelectrolyte brush structure, thus providing biophysical evidence to support both the zipper and brush models. In addition, a pair of projection domain deletion mutants were examined to investigate whether the projection domain of the protein is essential for the dimerization and brush models. Force distance curves collected on layers of these proteins demonstrate that the C terminus can play a role analogous to that of the projection domain. PMID- 29039656 TI - Highly Symmetric AB2 Framework Related to Tridymite in the Disordered Nitridosilicate La24Sr14-7x[Si36N72](O1-xFx)14 (x = 0.489). AB - La24Sr14-7x[Si36N72](O1-xFx)14 with x = 0.489 was obtained as a microcrystalline product by metathesis at 1500 degrees C in a radio-frequency furnace starting from Si(NH)2, La(NH2)3, SrH2, LaF3, and CeF3. The structure of the new nitridosilicate oxide fluoride was determined by combining transmission electron microscopy (TEM) and single-crystal X-ray diffraction using a microfocused synchrotron beam. The structure model with pronounced disorder [P63/mmc, Z = 1, a = 16.2065(3), c = 9.4165(1) A, R1(obs) = 0.0436] was confirmed by electron diffraction and aberration-corrected Z-contrast scanning TEM. The highly symmetric AB2 framework, which was theoretically predicted but not yet realized, consists of all-side vertex-sharing SiN4 tetrahedra that form channels along [001] filled with La, Sr, O, and F atoms. The connectivity pattern is related to that of tridymite. X-ray spectroscopy and bond-valence-sum calculations were further taken into account for assignment of the N, O, and F atoms. PMID- 29039657 TI - Ternary Inorganic Compounds Containing Carbon, Nitrogen, and Oxygen at High Pressures. AB - Ternary CxNyOz compounds are actively researched as novel high energy density and ultrahard materials. Although some synthesis work has been performed at ambient conditions, very little is known about the high pressure chemistry of of CxNyOz compounds. In this work, first-principles variable-composition evolutionary structure prediction calculations are performed with the goal of discovering novel mixed CxNyOz materials at ambient and high pressure conditions. By systematically searching ternary variable composition crystalline materials, the full ternary phase diagram is constructed in the range of pressures from 0 to 100 GPa. The search finds the C2N2O crystal containing an extended covalent network of C, N, and O atoms, having space group symmetry Cmc21, and stable above just 10 GPa. Several other novel metastable (CO)x-(N)y crystalline compounds discovered during the search, including two polymorphs of C2NO2 and two polymorphs of C3N2O3 crystals, are found to be energetically favorable compared to polymeric carbon monoxide (CO) and nitrogen. Predicted new compounds are characterized by their Raman spectra and equations of state. PMID- 29039659 TI - Nine-Membered Benzofuran-Fused Heterocycles: Enantioselective Synthesis by Pd Catalysis and Rearrangement via Transannular Bond Formation. AB - The first enantioselective formal [5+4] cycloaddition is realized under palladium catalysis to deliver benzofuran-fused nine-membered rings. These medium-sized heterocycles and derivatives undergo unique rearrangements induced by transannular bond formation, resulting in the production of two classes of densely substituted polycyclic heterocycles in excellent efficiency and stereoselectivity. PMID- 29039658 TI - Membrane Binding and Pore Formation by a Cytotoxic Fragment of Amyloid beta Peptide. AB - Amyloid beta (Abeta) peptide contributes to Alzheimer's disease by a yet unidentified mechanism. In the brain tissue, Abeta occurs in various forms, including an undecapeptide Abeta25-35, which exerts a neurotoxic effect through the mitochondrial dysfunction and/or Ca2+-permeable pore formation in cell membranes. This work was aimed at the biophysical characterization of membrane binding and pore formation by Abeta25-35. Interaction of Abeta25-35 with anionic and zwitterionic membranes was analyzed by microelectrophoresis. In pore formation experiments, Abeta25-35 was incubated in aqueous buffer to form oligomers and added to Quin-2-loaded vesicles. Gradual increase in Quin-2 fluorescence was interpreted in terms of membrane pore formation by the peptide, Ca2+ influx, and binding to intravesicular Quin-2. The kinetics and magnitude of this process were used to evaluate the rate constant of pore formation, peptide peptide association constants, and the oligomeric state of the pores. Decrease in membrane anionic charge and high ionic strength conditions significantly suppressed membrane binding and pore formation, indicating the importance of electrostatic interactions in these events. Circular dichroism spectroscopy showed that Abeta25-35 forms the most efficient pores in beta-sheet conformation. The data are consistent with an oligo-oligomeric pore model composed of up to eight peptide units, each containing 6-8 monomers. PMID- 29039660 TI - Iron-Catalyzed Regioselective Anti-Markovnikov Addition of C-H Bonds in Aromatic Ketones to Alkenes. AB - We report here on a C-H alkylation reaction, in which the coupling of aromatic ketones with alkenes proceeds in the presence of only a simple Fe(PMe3)4 catalyst. The anti-Markovnikov addition of ortho C-H bonds in various ketones occurs with excellent regioselectivity under relatively mild reaction conditions. A strikingly wide variety of alkenes can be used for this reaction, and the high yielding anti-Markovnikov addition of aromatic C-H bonds to enol ethers was achieved for the first time using this catalyst system. PMID- 29039661 TI - Rhodium/Copper Cocatalyzed Highly trans-Selective 1,2-Diheteroarylation of Alkynes with Azoles via C-H Addition/Oxidative Cross-Coupling: A Combined Experimental and Theoretical Study. AB - Transition metal-catalyzed addition of diaryl alkynes with arylating reagents for the synthesis of tetraarylethylenes generally encounters rigorous reaction conditions and relies on the use of prefunctionalized substrates such as organic halides or surrogates and organometallic reagents. In this work, we establish a highly trans-selective 1,2-diheteroarylation of alkynes with azoles via a rhodium/copper cocatalyzed C-H addition/oxidative coupling process. Moreover, the diheteroarylation developed herein could open a door for the synthesis of heteroarene-doped tetraarylethylenes, and the photoluminescence (PL) spectra in THF-water mixtures and solid powder verify that these tetra(hetero)arylethylenes are aggregation-induced emission (AIE) active, building a new AIE molecule library. With a combination of experimental and theoretical methods, the reaction mechanism for addition/oxidative cross-coupling of internal alkynes with azoles has been investigated. Theoretical calculations reveal that the metalation/deprotonation of azole could occur with either rhodium or copper species. When azolylrhodium is formed, an alkyne could insert into the Rh-C bond. Another azolyl group could then transfer to rhodium from azolylcopper compound. The subsequent intramolecular trans-nucleophilic addition generates the second C C bond. Meanwhile, the putative pathway for the formation of the hydroheteroarylated byproduct has also been explained by theoretical calculations. PMID- 29039662 TI - Quest for Novel Chemical Entities through Incorporation of Silicon in Drug Scaffolds. AB - In order to optimize a lead molecule for further development, bioisosteric replacements are generally adopted as one of the strategies. Silicon appears to be the right choice as a carbon isostere because of the similarity in chemical properties. Silicon can be strategically introduced in a molecule to modulate its druglike properties, providing medicinal chemists with an unconventional strategy for replacing a carbon atom. Silicon can also be introduced to replace other heteroatoms and can act as a surrogate of functional groups such as olefin and amide as well. The present Perspective focuses on the opportunities that silicon incorporation offers in drug discovery, with an emphasis on case studies where introduction of silicon has created a benefit over its analog. We have tried to highlight all the recent developments in the field and briefly discuss the challenges associated with them. PMID- 29039663 TI - Structural Dynamics of Al2O3/NiAl(110) During Film Growth in NO2. AB - While continuum descriptions of oxide film growth are well established, the local structural dynamics during oxide growth are largely unexplored. Here, we investigate this using scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS) for the example of alumina film growth on NiAl(110) following NO2 exposure. To maintain a well-defined system, we have adopted a cyclic growth approach of NO2 adsorption and annealing. NO2 adsorption at 693 K results in the formation of a vacancy island pattern in the NiAl(110) substrate, which is filled with AlOx by diffusion of O through the alumina film. The patches of AlOx coalesce to form smooth terraces upon annealing to 1200 K. By repeated cycling, we have grown films of up to 0.9 nm thick. While peak shifts in the XPS spectra indicate that the film maintains its insulating character upon thickening, our STM data show that there is a finite density of states within the band gap. The thickening of the alumina film is accompanied by the formation of trenches in the surface, which we interpret to be the result of film stress relief. PMID- 29039664 TI - Stereocontrolled Semisyntheses of Elliptone and 12abeta-Hydroxyelliptone. AB - Operationally simple, stereocontrolled semisyntheses of the anticancer rotenoids elliptone and 12abeta-hydroxyelliptone, isolated from Derris elliptica and Derris trifoliata, respectively, are described. Inspired by the work of Singhal, elliptone was prepared from rotenone via a dihydroxylation-oxidative cleavage, chemoselective Baeyer-Villiger oxidation, and acid-catalyzed elimination sequence. Elaboration of elliptone to 12abeta-hydroxyelliptone was achieved via a diastereoselective chromium-mediated Etard-like hydroxylation. The semisynthesis of elliptone constitutes an improvement over previous methods in terms of safety, scalability, and yield, while the first synthesis of 12abeta-hydroxyelliptone is also described. PMID- 29039665 TI - Discontinuity in Fast Dynamics at the Glass Transition of ortho-Terphenyl. AB - The dynamics of the molecular glass former ortho-terphenyl through the glass transition were observed with two-dimensional infrared vibrational spectroscopy measurements of spectral diffusion using the small probe molecule phenylselenocyanate. Although the slow diffusive motions were not visible on the experimental time scale, a picosecond-scale exponential relaxation was observed at temperatures from above to well below the glass transition temperature. The characteristic time scale has a smooth temperature dependence from the liquid into the glass phase, but the range of vibrational frequencies the probe samples displayed a discontinuity at the glass transition temperature. Complementary pump probe experiments associate the observed motion with density fluctuations. The key features of the dynamics are reproduced with a simple corrugated well potential energy surface model. In addition, the temperature dependence of the homogeneous vibrational dephasing was found to have a T2 functional form, where T is the absolute temperature. PMID- 29039666 TI - Comparative Assessment of Computational Methods for Free Energy Calculations of Ionic Hydration. AB - Experimental observations for ionic hydration free energies are highly debated mainly due to the ambiguous absolute hydration free energy of proton, DeltaGhyd*(H+). Hydration free energies (HFEs) of the 112 singly charged ions in the Minnesota solvation database were predicted by six methods with explicit and implicit solvent models, namely, thermodynamic integration (TI), energy representation module (ERmod), three-dimensional reference interaction site model (3D-RISM), and continuum solvation models based on the quantum mechanical charge density (SMD) and on the Poisson-Boltzmann (PB) and generalized Born (GB) theories. Taking the solvent Galvani potential of water into account, the resulting real HFEs from TI calculations for the generalized Amber force field (GAFF) modeled ions best match the experiments based on DeltaGhyd*(H+) = -262.4 kcal/mol (Randles Trans. Faraday Soc . 1956 , 52 , 1573 - 1581 ), in agreement with our previous work on charged amino acids (Zhang et al. J. Phys. Chem. Lett. 2017 , 8 , 2705 - 2712 ). The examined computational methods show an accuracy of ~7 kcal/mol for the GAFF-modeled ions, except for SMD with a higher accuracy of ~4 kcal/mol. A biased deficiency in modeling anionic compounds by GAFF is observed with a larger standard deviation (SD) of 9 kcal/mol than that for cations (SD ~ 4 kcal/mol). The relatively cheap ERmod and 3D-RISM methods reproduce TI results with good accuracy, although ERmod yields a systematic underestimation for cations by 9 kcal/mol; PB and GB generate relative (but not absolute) HFEs comparable to the TI predictions. Computational accuracy is found to be more limited by the accuracy of force fields rather than the models themselves. PMID- 29039667 TI - Pretreatment with Phytochemicals To Reduce Secondary Effects of Traumatic Brain Injury. PMID- 29039668 TI - Targets for Drug Therapy for Autism Spectrum Disorder: Challenges and Future Directions. AB - Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by persistent deficits in social communication and interaction and restricted, repetitive patterns of behavior, interests, and activities. Various factors are involved in the etiopathogenesis of ASD, including genetic factors, environmental toxins and stressors, impaired immune responses, mitochondrial dysfunction, and neuroinflammation. The heterogeneity in the phenotype among ASD patients and the complex etiology of the condition have long impeded the advancement of the development of pharmacological therapies. In the recent years, the integration of findings from mouse models to human genetics resulted in considerable progress toward the understanding of ASD pathophysiology. Currently, strategies to treat core symptoms of ASD are directed to correct synaptic dysfunctions, abnormalities in central oxytocin, vasopressin, and serotonin neurotransmission, and neuroinflammation. Here, we present a survey of the studies that have suggested molecular targets for drug development for ASD and the state-of-the-art of medicinal chemistry efforts in related areas. PMID- 29039670 TI - Proton-Exchange-Induced Configuration Rearrangement in a Poly(ionic liquid) Solution: A NMR Study. AB - Polymeric ionic liquids have emerged recently as a promising alternative to traditional polymers as the polymer electrolyte membrane materials of choice because of their strongly decoupled dynamics between the polymer backbone and the counterions. Knowledge of proton exchange and transport mechanism in such materials is critical to the design and development of new poly(ionic liquid) materials with improved electrochemical properties. Our NMR results show that the proton exchange between the labile proton of the diethylmethylammonium (NH122) cation and H2O molecules is accompanied by a concerted configuration rearrangement of the ammonium. Through a combination of PFG-NMR and proton relaxation (line width) analysis, we demonstrate that at lower temperatures the labile proton diffuses along with the NH122 ammonium cation as an integral unit, whereas at higher temperatures the NH/H2O proton exchange sets in gradually, and the PFG-NMR measured diffusion coefficient is a population-averaged value between the two exchanging sites. PMID- 29039671 TI - N-Methylation of Amines with Methanol Catalyzed by a Cp*Ir Complex Bearing a Functional 2,2'-Bibenzimidazole Ligand. AB - A new type of Cp*Ir complex bearing a functional 2,2'-bibenzimidazole ligand was designed, synthesized, and found to be a highly effective and general catalyst for the N-methylation of a variety of amines with methanol in the presence of a weak base (0.3 equiv of Cs2CO3). PMID- 29039672 TI - Stereoselective Epimerizations of Glycosyl Thiols. AB - Glycosyl thiols are widely used in stereoselective S-glycoside synthesis. Their epimerization from 1,2-trans to 1,2-cis thiols (e.g., equatorial to axial epimerization in thioglucopyranose) was attained using TiCl4, while SnCl4 promoted their axial-to-equatorial epimerization. The method included application for stereoselective beta-d-manno- and beta-l-rhamnopyranosyl thiol formation. Complex formation explains the equatorial preference when using SnCl4, whereas TiCl4 can shift the equilibrium toward the 1,2-cis thiol via 1,3-oxathiolane formation. PMID- 29039669 TI - Experimental and Computational Gas Phase Acidities of Conjugate Acids of Triazolylidene Carbenes: Rationalizing Subtle Electronic Effects. AB - In recent years, triazolylidene carbenes have come to the forefront as important organocatalysts for a wide range of reactions. The fundamental properties of these species, however, remain largely unknown. Herein, the gas phase acidities have been measured and calculated for a series of triazolium cations (the conjugate acids of the triazolylidene carbenes) that have not been heretofore examined in vacuo. The results are discussed in the context of these species as catalysts. We find correlations between the gas phase acidity and selectivity in two Umpolung reactions catalyzed by these species; such correlations are the first of their kind. We are able to use these linear correlations to improve reaction enantioselectivity. These results establish the possibility of using these thermochemical properties to predict reactivity in related transformations. PMID- 29039673 TI - Rapid Access to a Broad Range of 6'-Substituted Firefly Luciferin Analogues Reveals Surprising Emitters and Inhibitors. AB - Light-emitting firefly luciferin analogues contain electron-donating groups in the 6'-position, but the scope of known 6'-substitution remains narrow. A two step route to a broad range of 6'-substituted luciferin analogues was developed to fill this void and enable more extensive study of the 6'-functionality. This chemistry allowed direct access to "caged" amide and bright azetidine analogues, but also revealed thioether inhibitors and unexpectedly luminogenic aryl amine derivatives. PMID- 29039674 TI - Spin-Charge Separation in Finite Length Metallic Carbon Nanotubes. AB - Using time-dependent density functional theory, we study the optical excitations in finite length carbon nanotubes. Evidence of spin-charge separation is given in the spacetime domain. We demonstrate that the charge density wave is due to collective excitations of electron singlets, while the accompanying spin density wave is due to those of electron triplets. The Tomonaga-Luttinger liquid parameter and density-density interaction are extrapolated from the first principles excitation energies. We show that the density-density interaction increases with the length of the nanotube. The singlet and triplet excitation energies, on the other hand, decrease for increasing length of the nanotube. Their ratio is used to establish a first-principles approach for deriving the Tomonaga-Luttinger parameter (in excellent agreement with experimental data). Time evolution analysis of the charge and spin line densities evidences that the charge and spin density waves are elementary excitations of metallic carbon nanotubes. Their dynamics show no dependence on each other. PMID- 29039675 TI - Total Synthesis of Paralemnolide A. AB - The first total synthesis of tricyclic bisnorsesquiterpene paralemnolide A, isolated from the soft coral Paralemnalia thyrsoides, was achieved. This synthesis features the lactonization of the cyclohexene derivative having a tert butyl ester via stereoselective epoxidation followed by treatment with a Bronsted acid and construction of the novel tricyclic skeleton by an intramolecular Reformatsky-Honda reaction. PMID- 29039676 TI - Mechanism and Stereoselectivity of the BINOL-Catalyzed Allylboration of Skatoles. AB - Density functional theory calculations have been performed to investigate the binaphthol-catalyzed allylboration of skatoles. The high stereoselectivity observed for the reaction is reproduced well by the calculations and was found to be mainly a result of steric repulsions in the corresponding Zimmerman-Traxler transition states. The role of the additive MeOH in enhancing the stereoselectivity was also investigated and is suggested to promote the formation of less reactive allylboronic ester intermediates, thereby suppressing the formation of allylboroxine species, which undergo the facile racemic background reaction. PMID- 29039677 TI - Two-Way Transformation between fcc- and Nonfcc-Structured Gold Nanoclusters. AB - Precisely tuning the structure of nanomaterials, especially in a two-way style, is challenging but of great importance for regulating properties and for practical applications. The structural transformation from nonfcc to fcc (face center cubic) in gold nanoclusters has been recently reported; however, the reverse process, that is, the structural transformation from fcc to nonfcc, not to mention the two-way structural transformation between fcc and nonfcc, remains unknown. We developed a novel synthesis method, successfully fulfilled the two way structure transformation, and studied the stability of gold nanoclusters with different structures. Additionally, a novel gold nanocluster was synthesized and structurally resolved by single-crystal X-ray crystallography. This work has important implications for structure and property tuning of gold nanoclusters and might open up some new potential applications for gold nanoclusters. PMID- 29039678 TI - Electrochemical Properties of Sulfurized-Polyacrylonitrile Cathode for Lithium Sulfur Batteries: Effect of Polyacrylic Acid Binder and Fluoroethylene Carbonate Additive. AB - Sulfurized carbonized polyacrylonitrile (S-CPAN) is a promising cathode material for Li-S batteries owing to the absence of polysulfide dissolution phenomena in the electrolyte solutions and thus the lack of a detrimental shuttle mechanism. However, challenges remain in achieving high performance at practical loading because of large volume expansion of S-CPAN electrodes and lithium anode degradation at high current densities. To mitigate this problem, we propose a novel cell design including poly(acrylic acid) (PAA) binder for improved integrity of the composite electrodes and fluoroethylene carbonate (FEC) as additive in the electrolyte solutions for stabilizing the lithium metal surface. As a result, these cells delivered high initial discharge capacity of 1500 mAh g 1 and a superior cycling stability ~98.5% capacity retention after 100 cycles, 0.5 C rate, and high sulfur loading of 3.0 mg cm-2. Scaled-up 260 mAh pouch cells are working very well, highlighting the practical importance of this work. PMID- 29039679 TI - Effect of Nanostructured Domains in Self-Assembled Block Copolymer Films on Sequential Infiltration Synthesis. AB - There are broad interests in selective and localized synthesis in nanodomains of self-assembled block copolymers (BCPs) for a variety of applications. Sequential infiltration synthesis (SIS) shows promise to selectively grow a controllable amount of materials in one type of nanodomain of a self-assembled BCP film. However, the effects of nanostructured domains in a BCP film and SIS cycles on the material growth behavior of SIS are rarely studied. In this work, we investigated the growth behavior of TiO2 SIS within self-assembled polystyrene block-poly(methyl methacrylate) (PS-b-PMMA) films and the two corresponding pure homopolymer films (PS and PMMA) by using in situ quartz crystal microbalance (QCM). According to the experimental results, reactant purge steps are essential to enable a high selectivity of SIS in PMMA nanodomains in the BCP films by eliminating the undesired homogeneous reactions. The continuous PS nanodomain acts as the main channel in transporting reactants to PMMA nanodomains in the self-assembled PS-b-PMMA BCP films. The segregated nanoscale PMMA nanodomains in the BCP films show dramatically different TiCl4 diffusion/reaction behavior than a continuous PMMA film. The mass gain per SIS cycle within PMMA nanodomains decreases quickly with increasing cycle number. After 7 TiO2 SIS cycles, TiO2 SIS can only take place at the interface between PS and PMMA nanodomains in the BCP film. The TiO2 SIS process can uniformly modify PMMA nanodomains throughout a self-assembled PS-b-PMMA film up to the diffusion depth owing to the unique nanostructure-enabled diffusion. SIS cycle number and chemistry of a BCP will strongly affect the material growth behavior of a SIS chemistry on the BCP film and, therefore, the final morphology of the resulting nanomaterial. Detailed studies are warranted for a SIS process on a self-assembled BCP film of different chemistry. PMID- 29039680 TI - Solid-Phase Synthesis of beta-Peptoids with Chiral Backbone Substituents Using Reductive Amination. AB - A new submonomeric synthetic method of beta-peptoids that allows introduction of chiral backbone substituents is established. The synthesis of beta-peptoids with various backbone substituents on beta-carbons and spectroscopic studies of synthesized oligomers are described. PMID- 29039681 TI - Complementary and Alternative Medicine Services in the Military Health System. AB - OBJECTIVES: Surveys of military personnel indicate substantial use of complementary and alternative medicine (CAM) that possibly exceeds use in the general U.S. POPULATION: Although military treatment facilities (MTFs) are known to offer CAM, surveys do not indicate where service members receive this care. This study offers a comprehensive system-wide accounting of the types of CAM offered across the military health system (MHS), the conditions for which it is used, and its level of use. These data will help MHS policymakers better support their population's healthcare needs. DESIGN: A census survey of MTFs across the MHS on all CAM use, supplemented where possible by MHS utilization data. OUTCOME MEASURES: Types of CAM offered by each MTF, reasons given for offering CAM, health conditions for which CAM is used, and number of patient visits for each CAM type. RESULTS: Of the 142 MTFs in the MHS, 133 (94%) responded. Of these, 110 (83%) offer at least one type of CAM and 5 more plan to offer CAM services in the future. Larger MTFs (those reporting >=25,000 beneficiaries enrolled) are both more likely to offer CAM services (p < 0.001) and a larger number (>10) of different types of CAM (p = 0.010) than smaller MTFs. Three-fourths of MTFs offering CAM provide stress management/relaxation therapy, two-thirds provide acupuncture, and at least half provide progressive muscle relaxation, guided imagery, chiropractic, and mindfulness meditation. MTFs most commonly report CAM use for pain and mental health conditions. Acupuncture and chiropractic are most commonly used for pain, and stress management/relaxation therapy and mind-body medicine combinations are most often used for mental health-related conditions. We estimate 76,000 CAM patient encounters per month across the MHS. CONCLUSIONS: The availability of CAM services in the MHS is widespread and is being used to address a range of challenging pain and mental health conditions. PMID- 29039682 TI - On the Habitability of Desert Varnish: A Combined Study by Micro-Raman Spectroscopy, X-ray Diffraction, and Methylated Pyrolysis-Gas Chromatography-Mass Spectrometry. AB - In 2020, the ESA ExoMars and NASA Mars 2020 missions will be launched to Mars to search for evidence of past and present life. In preparation for these missions, terrestrial analog samples of rock formations on Mars are studied in detail in order to optimize the scientific information that the analytical instrumentation will return. Desert varnishes are thin mineral coatings found on rocks in arid and semi-arid environments on Earth that are recognized as analog samples. During the formation of desert varnishes (which takes many hundreds of years), organic matter is incorporated, and microorganisms may also play an active role in the formation process. During this study, four complementary analytical techniques proposed for Mars missions (X-ray diffraction [XRD], Raman spectroscopy, elemental analysis, and pyrolysis-gas chromatography-mass spectrometry [Py-GC MS]) were used to interrogate samples of desert varnish and describe their capacity to sustain life under extreme scenarios. For the first time, both the geochemistry and the organic compounds associated with desert varnish are described with the use of identical sets of samples. XRD and Raman spectroscopy measurements were used to nondestructively interrogate the mineralogy of the samples. In addition, the use of Raman spectroscopy instruments enabled the detection of beta-carotene, a highly Raman-active biomarker. The content and the nature of the organic material in the samples were further investigated with elemental analysis and methylated Py-GC-MS, and a bacterial origin was determined to be likely. In the context of planetary exploration, we describe the habitable nature of desert varnish based on the biogeochemical composition of the samples. Possible interference of the geological substrate on the detectability of pyrolysis products is also suggested. Key Words: Desert varnish-Habitability Raman spectroscopy-Py-GC-MS-XRD-ExoMars-Planetary science. Astrobiology 17, 1123 1137. PMID- 29039683 TI - A systematic review of Federal Drug Administration Docket for community consultation and public disclosure in exception from informed consent trials. AB - BACKGROUND: Exception from informed consent imposes community consultation and public disclosure requirements on clinical investigation in critically ill and injured patients. In 2011, the Food and Drug Administration instructed sponsors to submit publically disclosed information to the Food and Drug Administration Docket, but to date there has been no comprehensive analysis of available data. We summarized the community consultation and public disclosure practices of exception from informed consent trials published on the Food and Drug Administration Docket in order to better understand the breadth of common practices that exists among acute care clinical research. METHODS: We performed quantitative and qualitative analysis of Docket FDA-1995-S-0036 from its initiation until June 2017 in order to summarize existing practices. We developed a 4-point scoring system to categorize public disclosure and community consultation based on inclusion of key components such as a detailed plan, schedule of events conducted, results, and materials uploaded. RESULTS: The 177 docket submissions represented 34 trials. Material related to public disclosure accounted for 49% of pages, community consultation 45%, and 6% other. The median Docket Review Content Score for public disclosure was 3 (mean: 2.5, range: 0-4) and 2 (mean: 2.1, range: 0-4) for community consultation materials. CONCLUSION: The public information contained in the Docket varies broadly by trial and content. Additionally, as evidenced by the wide range of the Docket Review Content Score, submission guidelines are not followed uniformly. Given the apparent uncertainty about what should be submitted, and the need for best practice recommendations, it is valuable to categorize and summarize existing community consultation and public disclosure content. PMID- 29039684 TI - Parenting Stress in Parents of Infants With Congenital Heart Disease and Parents of Healthy Infants: The First Year of Life. AB - While we know that the parents of infants with congenital heart disease (CHD), the most prevalent group of congenital anomalies, experience increased parenting stress, the stress levels throughout infancy have yet to be studied. Stress experienced by parents beyond the normative stress of parenting can interfere with parenting processes, and bear adverse family outcomes. This prospective cohort study was conducted to describe and compare parenting stress levels during infancy between parents of infants with complex CHD and parents of healthy infants. The Parenting Stress Index-Long Form was distributed to parents of infants with complex CHD and parents of healthy infants (N = 129). T-tests were used to compare stress between groups at 3, 6, 9, and 12 months of age. Parents of infants with complex CHD had higher parenting stress than parents of healthy infants on multiple subscales on the Child and Parent Domains, at 3 months of age. The stress remained higher on the demandingness subscale throughout infancy. Parents of CHD infants also demonstrated significantly higher stress scores on the life stress subscale at 12 months of age. Findings highlight stressful periods related to parenting infants with CHD, which may increase existing psycho social risk for parents of infants with CHD. Early family intervention may promote parental adaptation to the illness, and help establishing healthy parenting practices. PMID- 29039685 TI - Health technology assessment process of a cardiovascular medical device in four different settings. AB - AIM: Health technology assessment (HTA) is a tool to help the decision-making process. The aim is to describe methods and processes used in the reimbursement decision making for drug-eluting stents (DES) in four different settings. METHODS: DES as a technology under study was selected according to different criteria, all of them agreed by a working group. A survey of key informants was designed. RESULTS: DES was evaluated following well-structured HTA processes. Nonetheless, scope for improvement was observed in relation to the data considered for the final decision, the transparency and inclusiveness of the process as well as in the methods employed. CONCLUSION: An attempt to describe the HTA processes of a well-known medical device. PMID- 29039686 TI - Prevention and treatment of HIV infection in neonates: evidence base for existing WHO dosing recommendations and implementation considerations. AB - INTRODUCTION: Antiretroviral drugs are used in neonates for prevention and treatment of HIV infection. Use of antiretrovirals to prevent perinatal HIV transmission is well established. Early identification of neonates infected with HIV and rapid initiation of combination antiretroviral treatment during the neonatal period is now recommended by WHO and DHHS. However, few antiretrovirals are available in formulations suitable for neonates and there are limited safety and pharmacokinetic data for most antiretrovirals in neonates. Areas covered: We summarize existing neonatal antiretroviral safety and pharmacokinetic information and discuss implementation considerations for programs providing antiretrovirals to neonates and young infants. Expert commentary: Antiretrovirals currently recommended by WHO for use in neonates are zidovudine, lamivudine, lopinavir/ritonavir, nevirapine, and raltegravir. Significant implementation challenges exist to the widespread use of these antiretrovirals in neonates. Optimal, feasible treatment of HIV-exposed and HIV-infected newborns will require development of practical neonatal dosage forms and their study in neonates for a wide range of antiretrovirals. PMID- 29039687 TI - "Context Matters:" An Exploration of Young Adult Social Constructions of Meaning About Death and Dying. PMID- 29039688 TI - MELC Genomics: A Framework for De Novo Genome Assembly. AB - The development of next-generation sequencing platforms increased substantially the capacity of data generation. In addition, in the past years, the costs for whole genome sequencing have been reduced that made it easier to access this technology. As a result, the storage and analysis of the data generated became a challenge, ushering in the development of bioinformatic tools, such as programs and programming languages, able to store, process, and analyze this huge amount of information. In this article, we present MELC genomics, a framework for genome assembly in a simple and fast workflow. PMID- 29039689 TI - Anti-Stigma HIV-Related Social Advertising: No Evidence for Side Effects on Condom Use. AB - Recent campaigns try to reduce social stigma associated with persons living with HIV. For example, a German campaign raised awareness that infection is unlikely in low-risk day-to-day interactions. Research has yet to show that there are no harmful side effects. This is essential because such messages promote a less threatening picture of HIV and thus may unintentionally increase complacency. We tested the possible side effects on the willingness to have sex without condoms. An experiment was conducted in which participants were exposed to anti-stigma messages or not. Anti-stigma messages did not elicit an increase in the willingness to have sex without condoms. PMID- 29039690 TI - Unilateral pulmonary artery pre-operative occlusion test: technical feasibility and safety prior to pneumonectomy or pleuropneumonectomy for malignancy. AB - OBJECTIVE: The aim of the present study was to assess the technical feasibility and safety of the unilateral pulmonary artery occlusion (UPAO) test in pre operative evaluation of pneumonectomy or pleuropneumonectomy for lung or pleural tumours. METHODS: The UPAO test was performed on 91 patients who were scheduled to undergo or were being considered for pneumonectomy or pleuropneumonectomy between June 2003 and July 2016. There were 74 males and 17 females, with a median age of 65 years (range, 23-80). The technical success rate, procedure time and complication rate were evaluated. Technical success was defined as completion of the UPAO test. RESULTS: The diagnoses of the 91 patients were as follows: lung cancer in 63, malignant pleural mesothelioma in 21, thymoma in 5, lung metastasis in 1 and lung carcinoid in 1. The UPAO test was performed successfully on 88 out of 91 patients (technical success rate: 97%). The median procedure time was 57 min (range, 34-120). Cardiac arrest due to migration of the balloon catheter to the pulmonary trunk occurred in 1 patient (complication rate: 1.1%). CONCLUSION: The UPAO test in pre-operative evaluation of pneumonectomy or pleuropneumonectomy for lung or pleural tumours appears to be technically feasible. However, it needs to be performed with care in order to avoid severe complications. Advances in knowledge: The UPAO test can be safely performed and is helpful in evaluating patients for pneumonectomy or pleuropneumonectomy. PMID- 29039691 TI - Inefficiency, dignity and patient experience: is it time for separate outpatient diagnostics? AB - There is international and national variation in the location of diagnostic imaging centres relative to hospitals. Diagnostic cross-sectional imaging has traditionally been performed within a hospital, catering for both inpatient and outpatients. The resulting two-tiered system caters for emergent and complex inpatients, in addition to typically ambulatory outpatients. These outpatients are less complex, and often attend an acute hospital for the specific purpose of diagnostic imaging. In both the UK and the Republic of Ireland, outpatient radiology is often provided on-campus in state-funded hospitals, reflecting the allocation of resources nationally. In many other countries, hospitals provide acute and high-level care, with community centres addressing outpatients' clinical and diagnostic needs. Mixing inpatients and outpatients introduces variability into the scanning process, and many institutions struggle to provide for the very different needs of outpatients. Current strategies of mixing these two fundamentally different groups should be reassessed, and either in-hospital segregation or dedicated outpatient diagnostic imaging centres merit serious consideration in any future healthcare planning. PMID- 29039693 TI - Variation in adherence to medications across the healthcare system in two comparative effectiveness research cohorts. AB - AIM: To assess heterogeneity in adherence to medications in two example comparative effectiveness research studies. PATIENTS & METHODS: We analyzed data from commercially insured patients initiating a statin or anticoagulant during 2005-2012. We calculated the cross-validated R2 from a series of hierarchical linear models to assess variation in 1-year adherence. RESULTS: There was less heterogeneity in adherence in the statin cohort compared with the anticoagulant cohort, where patient characteristics explained 7.2% of variation in adherence, and adding therapy and provider characteristics increased the proportion of variation explained to 8.0 and 8.5%, cumulatively. Random effects provided essentially no explanatory power, even in the statin cohort with large numbers of patients clustered within each pharmacy, prescriber and provider. CONCLUSION: The dependence of adherence on the healthcare system was stronger when the healthcare system influenced treatment choice and patient access to medication and when indications for treatment were strong. PMID- 29039694 TI - Can a Pink Ribbon Actually Limit Awareness? PMID- 29039692 TI - Imaging spectrum of immunomodulating, chemotherapeutic and radiation therapy related intracranial effects. AB - OBJECTIVE: A wide range of treatment-related side effects result in specific neurologic symptoms and signs and neuroimaging features. Even to the most seasoned neuroradiologist, elucidating therapy-related side effects from other common mimics can be challenging. We provide a pictorial survey of some common and uncommon medication-induced and therapy-related neuroimaging manifestations, discuss pathophysiology and common pitfalls in imaging and diagnosis. METHODS: A case-based review is utilized to depict scenarios on a routine basis in a general radiology or neuroradiology practice such as medication-induced posterior reversible encephalopathy syndrome to the more challenging cases of pseudoprogression and pseudoregression in temozolmide and bevacizumab therapy in gliobastoma treatment protocols. CONCLUSION: Knowledge of the treatment-induced imaging abnormalities is essential in the accurate interpretation and diagnosis from the most routine to most challenging of clinical situations. We provide a pictorial review for the radiologist to employ in order to be an invaluable provider to our clinical colleagues and patients. PMID- 29039695 TI - Board Walk - October 2017. PMID- 29039698 TI - An Experimental Test of How Selfies Change Social Judgments on Facebook. AB - Selfies are everywhere on social media. Research has focused only on who is posting selfies and has not addressed the audience members viewing selfies. This study aims to fill this gap by analyzing the judgments people make of selfies posted on Facebook. Using an online experiment, we test how including a selfie on a Facebook status update changes people's appraisals of narcissism, message appropriateness, and social attraction. We also consider how the valence and intimacy of the status update text interplay with the selfie to change social judgments. Participants rated posts with selfies as more narcissistic and inappropriate, and less socially attractive. Selfie evaluations also depended upon the valence and intimacy of the status update text. Gender of the selfie poster did not influence evaluation of posts. One implication from these results is that posting selfies on social media may lead to negative judgments about the poster. PMID- 29039697 TI - An Investigation of the Information Sought by Caregivers of Alzheimer's Patients on Online Peer Support Groups. AB - Caregivers of Alzheimer's patients find respite in online communities for solutions and emotional support. This study aims to understand the characteristics of information caregivers of Alzheimer's patients are searching for and the kind of support they receive through Internet-based peer support communities. Using a Web crawler written in Python Web programming language, we retrieved publicly available 2,500 random posts and their respective solutions from April 2012 to October 2016 on the solutions category of the Caregiver's Forum on ALZConnected.org . A content analysis was conducted on these randomly selected posts and 4,219 responses to those posts based on a classification system were derived from initial analyses of 750 posts and related responses. The results showed most posts (26%) related to queries about Alzheimer's symptoms, and the highest percentage of responses (45.56%) pertained to caregiver well being. The LIWC analyses generated an average tone rating of 27.27 for the posts, implying a negative tone and 65.17 for their responses, implying a slightly positive tone. The ALZConnected.org Web site has the potential of being an emotionally supportive tool for caregivers; however, a more user-friendly interface is required to accommodate the needs of most caregivers and their technological skills. Solutions offered on the peer support groups are often subjective opinions of other caregivers and should not be considered professional or comprehensive; further research on educating caregivers using online forums is necessary. PMID- 29039699 TI - Personality Traits, Motivations, and Emotional Consequences of Social Media Usage. AB - This study explores social media users' personality traits and motivations for the usage of two different social media platforms, Facebook and Pinterest, as well as how the varied uses impact users' negative emotional experiences. The findings suggest that the intensity of social media usage is positively related to negative emotions. For Facebook users, socialization, entertainment, and information seeking motivations significantly influence their platform use intensity and, subsequently, lead to negative emotions. Self-status seeking also has a direct effect on Facebook users' negative emotions. For Pinterest users, socialization is not a significant motivation for usage of that platform. However, entertainment, information seeking, and self-status seeking significantly predict their platform use intensity, which subsequently lead to negative emotions. Similarly, all four motivations for Facebook and Pinterest uses are influenced by users' personality traits: extraversion and openness. Yet, openness has a greater impact on using Pinterest than Facebook in terms of fulfilling socialization needs. Neuroticism has a positive impact on socialization and information seeking motives for use of both platforms, while conscientiousness and agreeableness have a negative influence on fulfilling self status seeking needs. In addition, agreeable social networking site users are less likely to use Facebook than Pinterest for fulfilling self-status related gratifications, while they are likely to use Pinterest instead of Facebook for entertainment and information needs. Implications of the findings and suggestions for future research are discussed. PMID- 29039701 TI - Collective Grieving in the Digital Age. PMID- 29039700 TI - Browsing, Posting, and Liking on Instagram: The Reciprocal Relationships Between Different Types of Instagram Use and Adolescents' Depressed Mood. AB - Although studies have shown that Instagram use and young adults' mental health are cross-sectionally associated, longitudinal evidence is lacking. In addition, no study thus far examined this association, or the reverse, among adolescents. To address these gaps, we set up a longitudinal panel study among 12- to 19-year old Flemish adolescents to investigate the reciprocal relationships between different types of Instagram use and depressed mood. Self-report data from 671 adolescent Instagram users (61% girls; MAge = 14.96; SD = 1.29) were used to examine our research question and test our hypotheses. Structural equation modeling showed that Instagram browsing at Time 1 was related to increases in adolescents' depressed mood at Time 2. In addition, adolescents' depressed mood at Time 1 was related to increases in Instagram posting at Time 2. These relationships were similar among boys and girls. Potential explanations for the study findings and suggestions for future research are discussed. PMID- 29039703 TI - The Relationship Between Resilience and Internet Addiction: A Multiple Mediation Model Through Peer Relationship and Depression. AB - Heavy use of the Internet may lead to profound academic problems in elementary students, such as poor grades, academic probation, and even expulsion from school. It is of great concern that Internet addiction problems in elementary school students have increased sharply in recent years. In this study, 58,756 elementary school students from the Henan province of China completed four questionnaires to explore the mechanisms of Internet addiction. The results showed that resilience was negatively correlated with Internet addiction. There were three mediational paths in the model: (a) the mediational path through peer relationship with an effect size of 50.0 percent, (b) the mediational path through depression with an effect size of 15.6 percent, (c) the mediational path through peer relationship and depression with an effect size of 13.7 percent. The total mediational effect size was 79.27 percent. The effect size through peer relationship was the strongest among the three mediation paths. The current findings suggest that resilience is a predictor of Internet addiction. Improving children's resilience (such as toughness, emotional control, and problem solving) can be an effective way to reduce Internet addiction behavior. The current findings provide useful information for early detection and intervention for Internet addiction. PMID- 29039704 TI - Beat the Fear of Public Speaking: Mobile 360 degrees Video Virtual Reality Exposure Training in Home Environment Reduces Public Speaking Anxiety. AB - With this article, we aim to increase our understanding of how mobile virtual reality exposure therapy (VRET) can help reduce speaking anxiety. Using the results of a longitudinal study, we examined the effect of a new VRET strategy (Public Speech Trainer, PST), that incorporates 360 degrees live recorded VR environments, on the reduction of public speaking anxiety. The PST was developed as a 360 degrees smartphone application for a VR head-mounted device that participants could use at home. Realistic anxiety experiences were created by means of live 360 degrees video recordings of a lecture hall containing three training sessions based on graded exposure framework; empty classroom (a) and with a small (b) and large audience (c). Thirty-five students participated in all sessions using PST. Anxiety levels were measured before and after each session over a period of 4 weeks. As expected, speaking anxiety significantly decreased after the completion of all PST sessions, and the decrement was the strongest in participants with initially high speaking anxiety baseline levels. Results also revealed that participants with moderate and high speaking anxiety baseline level differ in the anxiety state pattern over time. Conclusively and in line with habituation theory, the results supported the notion that VRET is more effective when aimed at reducing high-state anxiety levels. Further implications for future research and improvement of current VRET strategies are discussed. PMID- 29039705 TI - Research on Web Search Behavior: How Online Query Data Inform Social Psychology. AB - The widespread use of web searches in daily life has allowed researchers to study people's online social and psychological behavior. Using web search data has advantages in terms of data objectivity, ecological validity, temporal resolution, and unique application value. This review integrates existing studies on web search data that have explored topics including sexual behavior, suicidal behavior, mental health, social prejudice, social inequality, public responses to policies, and other psychosocial issues. These studies are categorized as descriptive, correlational, inferential, predictive, and policy evaluation research. The integration of theory-based hypothesis testing in future web search research will result in even stronger contributions to social psychology. PMID- 29039706 TI - Associations of Self-Presentation on Facebook with Mental Health and Personality Variables: A Systematic Review. AB - Many investigations of the associations of self-presentation on Facebook with mental health and personality variables exist, but their findings have not yet been synthetized. We therefore carried out a narrative synthesis of 21 observational studies (combined N = 7,573) obtained from a systematic search of four academic databases. Significant self-presentation associations were yielded for self-esteem, perceived social support, social anxiety, well-being, depression, bipolar/mania, stress, self-consciousness, and insecure attachment. Significant associations were also yielded for all of the big five personality variables and narcissism. The clearest trends-based on the number of times significant associations were yielded across included studies-were as follows: (1) inauthentic self-presentation was consistently associated with low self esteem and elevated levels of social anxiety; (2) inauthentic self-presentation was consistently more likely to occur in people high in neuroticism and narcissism; and (3) authentic/positive self-presentation was consistently associated with increased levels of self-esteem and perceived social support. The assessment of online self-presentation may offer clinicians important insights into how clients are functioning in relation to various domains of mental health and personality. For example, clients who present inauthentic versions of themselves on Facebook could be experiencing social anxiety or have maladaptive personality traits such as neuroticism and narcissism, all of which could be targeted in intervention. PMID- 29039707 TI - First Detection of CTX-M-1 in Extended-Spectrum beta-Lactamase-Producing Escherichia coli in Seafood from Tunisia. AB - The purpose of this study was to determine the carriage rate of Escherichia coli isolates in seafood, to analyze the phenotype and genotype of antimicrobial resistance in the recovered isolates, and to characterize extended-spectrum beta lactamase (ESBL) E. coli producers. E. coli isolates were recovered from 24 (34.3%) of the 70 seafood samples analyzed, and one isolate per sample was further characterized. Antibiotic resistance was determined by the disk diffusion method in the 24 isolates, with the following results (number of resistant isolates): tetracycline (8), streptomycin (7), ampicillin (6), trimethoprim sulfamethoxazole (4), chloramphenicol (4), ciprofloxacin (3), cefotaxime (2), and ceftazidime (2). Six isolates showed a multiresistant phenotype (including at least three families of antibiotics). Among tetracycline-resistant E. coli isolates, tet(A) was detected in five isolates and tet(B) in two isolates. The qnr(A) or aac(6')-1b-cr genes were detected in two ciprofloxacin-resistant E. coli isolates, and the sul2 gene in two trimethoprim-sulfamethoxazole-resistant isolates. ESBL-containing E. coli isolates, carrying the blaCTX-M-1 gene, were detected in 2 of the 70 seafood samples, obtained from gilt-head bream aquaculture. The ESBL isolates were typed phylogenetically and by multilocus sequence typing, and they were ascribed to lineage ST48/A and to the new ST3497/B1; these isolates carried the fimA, aer, and papGIII virulence genes. One of the ESBL-producing E. coli isolates carried an unusual class 1 integron (with the array dfr32-ereA-aadA1). Seafood could be a source of multiresistant E. coli isolates for the aquatic environment, and these could enter the food chain. PMID- 29039708 TI - Detection of Total and Pathogenic Vibrio parahaemolyticus in Shellfish Growing along the South Yellow Sea and the East China Sea. AB - This study was conducted to monitor the densities of total and pathogenic Vibrio parahaemolyticus in 300 samples of nine shellfish species harvested from the coasts of the South Yellow Sea and the East China Sea (N 23 degrees to 34 degrees , E 116 degrees to 124 degrees ), People's Republic of China, between May and October 2015. Total V. parahaemolyticus densities were measured, and V. parahaemolyticus isolates were biochemically identified with probes for the thermostable direct hemolysin gene (tdh) and the thermostable direct hemolysin related hemolysin gene (trh). We found that 202 of the 300 samples were positive for V. parahaemolyticus from all the sites: 58 of the 100 samples from the Fujian province, 71 of the 100 samples from the Zhejiang province, and 73 of the 100 samples from the Jiangsu province. In most (170) of the 300 samples, V. parahaemolyticus densities were 0.3 to 10 most probable number (MPN)/g; five lots exceeded 110 MPN/g, and two lots were estimated at 110 MPN/g. Among the 202 V. parahaemolyticus strains, only one was trh positive. Densities of V. parahaemolyticus in these shellfish were temperature dependent, with highest densities in June and July. Among the nine mollusk species, V. parahaemolyticus was most abundant in the agemaki clam (Sinonovacula constricta). The highest and lowest V. parahaemolyticus prevalences were found in oriental cyclina (Cyclina sinensis, 93.8%) and mussels (Mytilus edulis, 28.1%), respectively. Overall, although V. parahaemolyticus is widely distributed in marine environments, the density of V. parahaemolyticus was low and the prevalence of the main virulence factor was very low in shellfish along the coasts of the South Yellow Sea and East China Sea, which is important from a public health perspective. Data presented here will be useful for correlational research and can be utilized for developing risk management plans that establish food safety guidelines for V. parahaemolyticus in Chinese shellfish. PMID- 29039709 TI - Survey of Veterinary Drug Residues in Raw Milk in Hebei Province, China. AB - The objective of this study was to investigate the occurrence of veterinary drug residues in raw milk from Hebei, the second-largest dairy production province in the People's Republic of China. A total of 192 raw milk samples were collected from 64 milk stations in seven districts. Twenty-eight veterinary drug residues were analyzed by ultraperformance liquid chromatography with tandem mass spectrometry based on a China National Standard. Raw milk samples with multiple residues of veterinary drugs were not found in the present study. Residues of four veterinary drugs, penicillin G, sulfacetamide, trimethoprim, and lincomycin, were detected in 12 (6.25%) raw milk samples, with detection ratios of 1.04, 0.52, 3.13, and 1.56%, respectively. All veterinary drug residues detected were under the maximum residue levels as regulated by China, the European Union, the United States, and the Codex Alimentarius Commission. In general, raw milk from Hebei province was considered relatively safe for human consumption because of the low prevalence of veterinary drug residues. However, stringent control measurements for veterinary drug residues in raw milk are required because some veterinary drugs were detected in milk from some areas of Hebei province. PMID- 29039710 TI - One-Year Mixed-Methods Case Study of a Community-Academic Advisory Board Addressing Childhood Obesity. AB - OBJECTIVE: Using a community-based participatory research and systems-based approach, the purpose of this community case study is to describe the planning process and first-year experiences of community-academic advisory board (CAB) partners involved with the development of an evidence-based childhood obesity treatment program in a medically underserved region. METHOD: Regional community partners ( n = 9; Pittsylvania/Danville Health District, Children's Healthcare Center, Danville Parks & Recreation, and Danville Boys & Girls Club) and academic partners ( n = 9) met monthly to select and adapt an evidence-based childhood obesity program, develop evaluation and recruitment protocols, and plan for program implementation. In the first 3 months, members developed a mixed-methods capacity evaluation, administered at 3 and 11 months following the first CAB meeting. RESULTS: Most capacity dimensions were rated highly and demonstrated no significant change over time. However, perceptions of trust approached a significant increase ( p = .055), the ability to resolve conflicts significantly increased ( p = .018), and participation and influ-ence perceptions significantly decreased ( p = .001). Qualitative analysis elucidated members' experiences and key facilitator and barrier themes emerged. CONCLUSIONS: Similarities and differences between community and academic members' experiences allowed synthesis of best practices and lessons learned. The methodological framework and best practices can inform the capacity development for new community-academic collaborations. PMID- 29039712 TI - The management of refractory carcinoid syndrome: challenges and opportunities ahead. PMID- 29039711 TI - Farewell. PMID- 29039713 TI - Eleanor Clarke Slagle: Facts and Myths. AB - Although the name, Eleanor Clarke Slagle, is well known to occupational therapy practitioners, her personal history is less known and published accounts vary in the degree of accuracy. This article is based on a historical research technique known as source criticism that focuses on using accounts published during the individual's lifetime that can be verified, when possible, through more than one source. The purpose is to present an accurate history of Mrs. Slagle as a person who influenced the history and development of occupational therapy practice in the United States. PMID- 29039714 TI - Causal Factors of Increased Smoking in ADHD: A Systematic Review. AB - BACKGROUND: ADHD is a highly prevalent disorder and poses a risk for a variety of mental disorders and functional impairments into adulthood. One of the most striking comorbidities of ADHD is nicotine dependence. Youth diagnosed with ADHD are 2-3 times more likely to smoke than their peers without ADHD, initiate smoking earlier in life and progress more quickly and more frequently to regular use and dependence. Possible explanations for these increased risks are: (a) self medication of ADHD symptoms with the stimulant nicotine; (b) ADHD symptoms like inattention and hyperactivity/impulsivity predispose for smoking initiation and impede smoking cessation; (c) peer pressure; and/or (d) common genetic or environmental determinants for ADHD and smoking. OBJECTIVE: Identify the most probable causes of the high prevalence of smoking and nicotine dependence in subjects with ADHD. METHODS: A systematic literature review was performed and the causality of the observed relations was ranked using the Bradford Hill criteria. FINDINGS: ADHD medication reduces early smoking initiation and alleviates smoking withdrawal. Nicotine patches, bupropion and (probably) varenicline ameliorate ADHD symptoms. Imitation of and interaction with peers and genetic and environmental determinants may contribute to the comorbidity, but seem to contribute less than self-medication. CONCLUSION: Smoking is probably best explained by a combination of imitation, peer pressure and typical traits of ADHD. In contrast, the positive relation between ADHD and nicotine dependence is currently best explained by the self-medication hypothesis. This hypothesis has a clear pharmacological rationale and is supported by ample evidence, but awaits confirmation from longitudinal naturalistic studies. PMID- 29039715 TI - Antibiotic Resistance in Salmonella from Retail Foods of Animal Origin and Its Association with Disinfectant and Heavy Metal Resistance. AB - This study aims to demonstrate the antibiotic resistance and its association with disinfectant and heavy metal resistance in 152 Salmonella isolates recovered from retail foods of animal origins. Susceptibility testing demonstrated that 92.8% isolates were resistant to at least one antibiotic, and the resistance was highest to oxytetracycline (80.9%), followed by trimethoprim (64.5%), amoxicillin (28.9%), ampicillin (28.3%), levofloxacin (21.7%), ciprofloxacin (16.4%), and gentamicin (10.5%), respectively. The blaTEM and tetA genes (44.7%) were commonly present. The qacF and qacEDelta1 genes were detected in 18.4% and 8.6% of all isolates. The Cu-resistance genes pcoR, pcoC, and pcoA were the most prevalent (20.4-40.8%), followed by Hg-resistance gene merA (17.8%) and As-resistance genes arsB (6.6%). The antibiotic resistance was highly associated with disinfectant or certain heavy metal resistance genes. Most notably, the association among Cu resistance genes (pcoC, pcoR), disinfectant resistance genes (qacF, qacEDelta1), and tetracycline and sulfonamide resistance genes (tet, sul) was significant (p < 0.05). Pulsed-field gel electrophoresis revealed that Salmonella isolates was associated with supermarkets indicating the possibility of crosscontamination in farms or processing environment. This study indicated that retail meats may be a reservoir for the dissemination of antibiotic-resistant Salmonella and using disinfectants for decontamination or metals in livestock may provide a pressure for coselecting strains with acquired resistance to other antimicrobials. PMID- 29039716 TI - Psychometric Properties of the Iranian-Children Participation Questionnaire (I CPQ) When Used with Parents of Preschool Children with Cerebral Palsy. AB - The purpose of the study was to establish the psychometric properties of the Iranian-Children Participation Questionnaire (I-CPQ) among parents (n = 120) of preschool children with cerebral palsy. The mean age of the preschool children was 5.1 years old. The confirmatory factor analysis was conducted in two stages, and the values of all goodness of fit tests reached an acceptable level (greater than 0.9), and achieved an acceptable root mean square error of approximation model fit value of 0.05. The results of convergent validity with the Vineland Adaptive Behavior Scale for all subtests were significant. Internal consistency was acceptable to excellent (alpha: 0.66-0.85), and test-retest reliability was excellent (ICC: 0.92-0.98). We concluded that the I-CPQ demonstrated good psychometric properties and utility for assessing participation of Iranian preschool children with cerebral palsy. PMID- 29039717 TI - High Prevalence of Multidrug-Resistant Bacteria in Libyan War Casualties Admitted to a Tertiary Care Hospital, Germany. AB - The ongoing Libyan conflict constantly causes victims among the military and civilian population. Cross-border transfer of patients represents a high risk of introducing multidrug-resistant organisms (MDROs), for example, methicillin resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci, and carbapenem-resistant gram-negative organisms (CROs), into the country of destination. This study assessed the MDRO status in Libyan war casualties (n = 67) admitted to Northwest Medical Centre in Frankfurt/Main, Germany, from August 2016 till January 2017. Identified multidrug-resistant nonfermenters and Enterobacteriaceae were subjected to molecular detection of beta-lactamases and further mechanisms of resistance. All isolates were typed by enzymatic macrorestriction and subsequent pulsed-field gel electrophoresis. MDROs were found in 40 (60%) patients, including 25 (37%) positive for at least one CRO and 11 (16%) patients with MRSA. A total of 37 isolates of Klebsiella pneumoniae, Acinetobacter baumannii, Escherichia coli, Enterobacter cloacae, and Serratia marcescens produced carbapenemases: NDM (n = 17), OXA-48 (n = 15), and OXA-23 (n = 9) in addition to other beta-lactamases (with blaCTX-M-group-1 being most frequent) and plasmid-mediated quinolone resistance genes (qnrB, aac(6')Ib-cr). Bacterial strain typing revealed the presence of various clones. This high MDRO rate in Libyan war casualties demands awareness, appropriate screening, and containment measures for medical institutions involved in medical care to avoid patient-to-patient transmission. PMID- 29039718 TI - Current status of proteomics of soft tissue sarcomas. AB - INTRODUCTION: Proteomics has been used in soft tissue sarcoma (STS) research in the attempts to improve the understanding of the disease background and develop novel clinical applications. Using various proteomics modalities, aberrant regulations of numerous intriguing proteins were identified in STSs, and the possible utilities of identified proteins as biomarkers or therapeutic targets have been explored. STS is an exceptionally diverse group of malignant diseases with highly complex molecular backgrounds and, therefore, an overview of the achievements and prospects of STS proteomics could enhance our knowledge of the possibilities and limitations of cancer proteomics. Areas covered: This review examines all STSs that have been examined using proteomics modalities, discussing unique aspects, limitations, and possible improvements of individual reports. To contribute to the current progress in cancer treatment development using novel anti-cancer drugs, proteomics plays a central role in linking cutting-edge technologies, application of proteogenomics, patient-derived cancer models, and biobanking system. Expert commentary: Therefore, proteomic-based STS research will be developed as an interdisciplinary science. STS proteomics will be further developed based on the interaction of oncologists with basic researchers in various fields, aimed at obtaining an enhanced understanding of the biology of the disease and achieving superior clinical outcomes for patients. PMID- 29039720 TI - Trends in the Contribution of Emergency Departments to the Provision of Hospital Associated Health Care in the USA. AB - Traditional approaches to assessing the health of populations focus on the use of primary care and the delivery of care through patient-centered homes, managed care resources, and accountable care organizations. The use of emergency departments (EDs) has largely not been given consideration in these models. Our study aimed to determine the contribution of EDs to the health care received by Americans between 1996 and 2010 and to compare it with the contribution of outpatient and inpatient services using National Hospital Ambulatory Medical Care Survey and National Hospital Discharge Survey databases. We found that EDs contributed an average of 47.7% of the hospital-associated medical care delivered in the United States, and this percentage increased steadily over the 14-year study period. EDs are a major source of medical care in the United States, especially for vulnerable populations, and this contribution increased throughout the study period. Including emergency care within health reform and population health efforts would prove valuable to supporting the health of the nation. PMID- 29039719 TI - Resistance in In Vitro Selected Tigecycline-Resistant Methicillin-Resistant Staphylococcus aureus Sequence Type 5 Is Driven by Mutations in mepR and mepA Genes. AB - A tigecycline-susceptible (TGC-S) Sequence Type (ST) 5 clinical methicillin resistant Staphylococcus aureus (MRSA) strain was cultured in escalating levels of tigecycline, yielding mutants eightfold more resistant. Their genomes were sequenced to identify genetic alterations, resulting in resistance. Alterations in rpsJ, commonly related to tigecycline resistance, were also investigated. Tigecycline resistance was mediated by loss-of-function mutations in the transcriptional repressor mepR, resulting in derepression of the efflux pump mepA. Increased levels of resistance were obtained by successive mutations in mepA itself. No alterations in RpsJ were observed in selected strains, but we observed a K57M substitution, previously correlated with resistance, among TGC-S clinical strains. Thus, the pathway to tigecycline resistance in CC5 MRSA in vitro appears to be derepression of mep operon as the result of mepR loss-of function mutation, followed by alterations in MepA efflux pump. This shows that other evolutionary pathways, besides mutation of rpsJ, are available for evolving tigecycline resistance in CC5 MRSA. PMID- 29039721 TI - A recurrent splice-site mutation in EPHA2 causing congenital posterior nuclear cataract. AB - : Intoduction: Inherited cataract, opacification of the lens, is the most common worldwide cause of blindness in children. We aimed to identify the genetic cause of autosomal dominant (AD) posterior nuclear cataract in a four generation British family. METHODS: Whole genome sequence (WGS) was performed on two affected and one unaffected individual of the family and further validated by direct sequencing. Haplotype analysis was performed via genotying. RESULTS: A splice-site mutation c.2826-9G>A in the gene EPHA2, encoding EPH receptor A2 was identified and found to co-segregate with disease. CONCLUSIONS: We have identified a recurrent splice-site mutation c.2826-9G>A in EPHA2 causing isolated posterior nuclear cataract, providing evidence of further phenotypic heterogeneity associated with this variant. PMID- 29039722 TI - Instructional Insights: Restructuring the Fieldwork Experience: One Clinic's Journey. AB - Although there are standards for occupational therapy education, there are no universal standards for the affiliated fieldwork settings, only guidelines from the educational institutions. As a result, a student learning experience often varies dramatically from facility to facility. Several factors that may affect the clinical experience include the preparedness of a student, the willingness of a clinic to work through potential student challenges, and the theoretical foundation a clinic has built for disseminating occupational therapy practice skills. This article highlights the journey of one clinic through a redesign of the occupational therapy fieldwork program and outlines the steps taken to transform student experiences and improve program success. Starting with a self directed review of the fieldwork process, and through a combination of program redesign, application of a theoretical foundation, and refocus toward a competency-based program, the student success rate at this acute rehabilitation hospital drastically improved and achieved positive feedback from all involved. PMID- 29039723 TI - Glenohumeral internal rotation deficit in table tennis players. AB - Table tennis requires rapid and extreme movements that may result in shoulder adaptations, such as glenohumeral internal rotation deficit, which is a risk factor for several injuries. This study compared range of motion of internal and external rotation and total rotation motion of glenohumeral joint between dominant and non-dominant shoulders of table tennis players. This is a cross sectional observational study. Twenty healthy male table tennis players that were enrolled in an official table tennis league took part in this study (mean age: 22.9 +/- 12.9 years, time of sports practice: 6.2 +/- 7.12 years). Measurements of passive glenohumeral external rotation and internal rotation were taken with the individuals in the supine and sidelying positions. Total rotation motion was calculated by summing external and internal rotations. The dominant side showed decreased internal rotation when compared to non-dominant side in both supine (mean difference: 14.9 degrees , p = 0.02) and sidelying positions (mean difference: 16.3 degrees , p = 0.01). No significant difference (p > 0.05) was found for external rotation and total rotation motion between dominant and non dominant shoulders. The findings indicate that table tennis players exhibit glenohumeral internal rotation deficit of dominant shoulder. PMID- 29039724 TI - Paravascular spaces at the brain surface: Low resistance pathways for cerebrospinal fluid flow. AB - Clearance of waste products from the brain is of vital importance. Recent publications suggest a potential clearance mechanism via paravascular channels around blood vessels. Arterial pulsations might provide the driving force for paravascular flow, but its flow pattern remains poorly characterized. In addition, the relationship between paravascular flow around leptomeningeal vessels and penetrating vessels is unclear. In this study, we determined blood flow and diameter pulsations through a thinned-skull cranial window. We observed that microspheres moved preferentially in the paravascular space of arteries rather than in the adjacent subarachnoid space or around veins. Paravascular flow was pulsatile, generated by the cardiac cycle, with net antegrade flow. Confocal imaging showed microspheres distributed along leptomeningeal arteries, while their presence along penetrating arteries was limited to few vessels. These data suggest that paravascular spaces around leptomeningeal arteries form low resistance pathways on the surface of the brain that facilitate cerebrospinal fluid flow. PMID- 29039725 TI - High-Risk Breast Lesions: A Machine Learning Model to Predict Pathologic Upgrade and Reduce Unnecessary Surgical Excision. AB - Purpose To develop a machine learning model that allows high-risk breast lesions (HRLs) diagnosed with image-guided needle biopsy that require surgical excision to be distinguished from HRLs that are at low risk for upgrade to cancer at surgery and thus could be surveilled. Materials and Methods Consecutive patients with biopsy-proven HRLs who underwent surgery or at least 2 years of imaging follow-up from June 2006 to April 2015 were identified. A random forest machine learning model was developed to identify HRLs at low risk for upgrade to cancer. Traditional features such as age and HRL histologic results were used in the model, as were text features from the biopsy pathologic report. Results One thousand six HRLs were identified, with a cancer upgrade rate of 11.4% (115 of 1006). A machine learning random forest model was developed with 671 HRLs and tested with an independent set of 335 HRLs. Among the most important traditional features were age and HRL histologic results (eg, atypical ductal hyperplasia). An important text feature from the pathologic reports was "severely atypical." Instead of surgical excision of all HRLs, if those categorized with the model to be at low risk for upgrade were surveilled and the remainder were excised, then 97.4% (37 of 38) of malignancies would have been diagnosed at surgery, and 30.6% (91 of 297) of surgeries of benign lesions could have been avoided. Conclusion This study provides proof of concept that a machine learning model can be applied to predict the risk of upgrade of HRLs to cancer. Use of this model could decrease unnecessary surgery by nearly one-third and could help guide clinical decision making with regard to surveillance versus surgical excision of HRLs. (c) RSNA, 2017. PMID- 29039726 TI - Perceived relevance mediates the relationship between professional identity and attitudes towards interprofessional education in first-year university students. AB - The strength of health science students' identification with their chosen profession is associated with their attitudes towards interprofessional education (IPE). However, little is known about the factors that might mediate this relationship. In this article, we examine the relationships between professional identification, communication and teamwork skills, perceived relevance of IPE, and positive and negative attitudes towards IPE. A sample of 444 first-year university students from 25 health science professions enrolled in a first-year interprofessional program participated in this research by completing a questionnaire. Data were analysed using path analysis. Positive IPE attitudes were more strongly endorsed than negative IPE attitudes. Perceived relevance of IPE to future careers was the strongest predictor of both positive and negative attitudes to IPE, and fully mediated the effect of professional identity. Self reported communication and teamwork skills were a significant negative predictor of negative attitudes to IPE only, and the effect was not mediated by perceived relevance. These findings indicate that IPE may be particularly challenging for students who do not have confidence in their abilities to communicate and work effectively in teams. Building these skills through alternative communication technologies may decrease negative attitudes. In order to maintain or increase positive attitudes towards IPE in introductory programs that span professions, the curriculum needs to be designed to demonstrate relevance to the future careers of participating students. PMID- 29039727 TI - Identification of Aptamers That Bind to Sickle Hemoglobin and Inhibit Its Polymerization. AB - The pathophysiology of sickle cell disease (SCD) is dependent on the polymerization of deoxygenated sickle hemoglobin (HbS), leading to erythrocyte deformation (sickling) and vaso-occlusion within the microvasculature. Following deoxygenation, there is a delay time before polymerization is initiated, during which nucleation of HbS monomers occurs. An agent with the ability to extend this delay time or slow polymerization would therefore hold a therapeutic, possibly curative, potential. We used the Systematic Evolution of Ligands by Exponential Enrichment (SELEX) method to screen for HbS-binding RNA aptamers modified with nuclease-resistant 2'-fluoropyrimidines. Polymerization assays were employed to identify aptamers with polymerization-inhibitory properties. Two noncompeting aptamers, DE3A and OX3B, were found to bind hemoglobin, significantly increase the delay time, and reduce the rate of polymerization of HbS. These modifiable, nuclease-resistant aptamers are potential new therapeutic agents for SCD. PMID- 29039728 TI - Maternal Smoking During Pregnancy and ADHD: Results From a Systematic Review and Meta-Analysis of Prospective Cohort Studies. AB - OBJECTIVE: Findings on maternal smoking during pregnancy and ADHD risk in children are inconsistent. A meta-analysis was performed to summarize effects of exposure to maternal smoking during pregnancy on ADHD risk in children. METHOD: We conducted a systematic literature search to select articles up to June 2016. Only prospective cohort studies were included. Summary relative risks (RRs) with 95% confidence intervals (CIs) were calculated. RESULTS: Pooled RR estimates based on 12 cohort studies including 17,304 pregnant women suggested that maternal smoking during pregnancy was associated with an increased risk of ADHD (pooled RR = 1.58, 95% CI = [1.33, 1.88]). CONCLUSION: Results from this study indicate that maternal smoking during pregnancy is related to an increased risk of ADHD in children. There is an urgent need to increase maternal awareness of smoking risk and quitting smoking to mitigate the ADHD risk in children. PMID- 29039729 TI - Antimicrobial Activity of Ceftolozane-Tazobactam Tested Against Enterobacteriaceae and Pseudomonas aeruginosa with Various Resistance Patterns Isolated in U.S. Hospitals (2013-2016) as Part of the Surveillance Program: Program to Assess Ceftolozane-Tazobactam Susceptibility. AB - This study evaluated the in vitro activity of ceftolozane-tazobactam and comparator agents tested against Enterobacteriaceae and Pseudomonas aeruginosa isolates from hospitalized patients in the United States. Ceftolozane-tazobactam is an antipseudomonal cephalosporin combined with a well-established beta lactamase inhibitor. A total of 18,960 organisms (15,223 Enterobacteriaceae and 3,737 P. aeruginosa) were consecutively collected from 32 medical centers located in all nine U.S. census divisions from 2013 to 2016. Organisms were tested for susceptibility by broth microdilution. CLSI and EUCAST interpretive criteria were used. Ceftolozane-tazobactam (94.4% susceptible), amikacin (99.0% susceptible), and meropenem (98.0% susceptible) were the most active compounds tested against Enterobacteriaceae. Among the Enterobacteriaceae isolates tested, 1.9% (n = 286) were carbapenem-resistant Enterobacteriaceae (CRE) and 9.5% (n = 1,450) exhibited an extended-spectrum beta-lactamase (ESBL) non-CRE phenotype. Although ceftolozane-tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacteriaceae (87.5% susceptible), it lacked useful activity against CRE. Ceftolozane-tazobactam was the most potent beta-lactam agent tested against P. aeruginosa isolates, with 97.3% susceptible. Only colistin was more active, inhibiting 99.5% of isolates. Ceftolozane-tazobactam also maintained good activity against multidrug-resistant P. aeruginosa, with 88.6% susceptible. Ceftolozane-tazobactam was the most active beta-lactam agent tested against P. aeruginosa and was more active than available cephalosporins and piperacillin tazobactam against Enterobacteriaceae. PMID- 29039731 TI - Patchy DNA forms of the Zika virus RNA genome are generated following infection in mosquito cell cultures and in mosquitoes. AB - Zika virus (ZIKV) is a mosquito-borne flavivirus and has historically been reported to cause mild symptomatic diseases during human infections. More recently, the explosion of microcephaly among infants born to ZIKV-infected women has made ZIKV a global public health concern. While ZIKV causes acute human diseases, infections of vector mosquitoes are basically non-pathogenic, allowing persistent infections and conferring lifelong ability to transmit the virus. Recent studies have revealed that DNA forms of arboviral RNA genomes play a significant role in viral persistence in mosquitoes. We have initiated experiments to determine whether ZIKV generates viral DNA (vDNA) forms following infection in mosquitoes. Here we show that vDNAs are generated following ZIKV infection both in mosquito cell cultures and in its primary vector Aedes aegypti. vDNA formation is more extensive in RNA interference (RNAi)-deficient Aedes albopictus-derived C6/36 cells compared to RNAi-proficient mosquito cells. In addition, vDNAs are generated via multiple template-switching events. PMID- 29039732 TI - A provisional complete genome-based genotyping system for rotavirus species C from terrestrial mammals. AB - Rotaviruses C (RVCs) have been detected in pigs, humans, cows, ferrets and dogs. Despite their zoonotic impact and pathogenicity, the genetic characterization of RVCs is incomplete, unlike rotaviruses A (RVAs), whose genetics are well studied. Several studies reported partial and complete genomic sequences for multiple porcine and canine RVCs. We aimed to establish a complete genome-based genotyping system for RVCs, by analysing complete genome data from 22 porcine RVCs identified in Japan from 2002 to 2010, along with those from multiple human, bovine, porcine, canine and ferret RVCs reported in several previous studies. Comparative sequence analyses among RVCs from various host species demonstrated that porcine RVCs had a high level of genetic diversity. In addition, phylogenetic analyses of all 11 RNA segments indicated that porcine RVCs could be classified into multiple genotypes. Notably, the VP4 dendrogram divided bovine RVCs into multiple genotypes. Consequently, the provisional genotype classification for RVCs from terrestrial mammals revealed the existence of genotypes 18G, 21P, 13I, 4R, 6C, 6M, 9A, 8N, 6T, 5E and 4H for the genes VP7, VP4, VP6, VP1, VP2, VP3, NSP1, NSP2, NSP3, NSP4 and NSP5, respectively, based on the cut-off values as defined by the Rotavirus Classification Working Group. The system established in this study deepens our understanding of RVC evolution and facilitates the discovery of genetic events (gene reassortment and interspecies transmission) among RVCs. PMID- 29039733 TI - Near-infrared fluorescent protein iRFP720 is optimal for in vivo fluorescence imaging of rabies virus infection. AB - In vivo imaging is a noninvasive method that enables real-time monitoring of viral infection dynamics in a small animal, which allows a better understanding of viral pathogenesis. In vivo bioluminescence imaging of virus infection is widely used but, despite its advantage over bioluminescence that no substrate administration is required, fluorescence imaging is not used because of severe autofluorescence. Recently, several far-red and near-infrared (NIR) fluorescent proteins (FPs) have been developed and shown to be useful for whole-body fluorescence imaging. Here, we report comparative testing of far-red and NIR FPs in the imaging of rabies virus (RABV) infection. Using the highly neuroinvasive 1088 strain, we generated recombinant RABV that expressed FPs such as Katushka2S, E2-Crimson, iRFP670 or iRFP720. After intracerebral inoculation to nude mice, the 1088 strain expressing iRFP720, the most red-shifted FP, was detected the earliest with the highest signal-to-noise ratio using a filter set for >700 nm, in which the background signal level was very low. Furthermore, we could also track viral dissemination from the spinal cord to the brain in nude mice after intramuscular inoculation of iRFP720-expressing 1088 into the hind limb. Hence, we conclude that the NIR FP iRFP720 used with a filter set for >700 nm is useful for in vivo fluorescence imaging not only for RABV infection but also for other virus infections. Our findings will also be useful for developing dual-optical imaging of virus-host interaction dynamics using bioluminescence reporter mice for inflammation imaging. PMID- 29039734 TI - Computational analysis of a species D human adenovirus provides evidence of a novel virus. AB - A human adenovirus (HAdV) species D, was isolated from a hospitalised child with severe lower respiratory infection. It was initially detected in the nasopharyngeal aspirate of the child followed by conventional PCR amplification of the hexon, penton base, and fibre genes. Sanger DNA sequencing and phylogenetic analyses showed characteristics of a recombinant genome not described before. Next Generation Sequencing analysis was performed to reconstruct its complete DNA genome after viral isolation in adenocarcinoma human cell line (A549). A complete genomic sequence of 35.2 kb in length, with a G+C content of 57 % was obtained, related to HAdV-D29 (96 % identity). Imputed serology analysis demonstrated its novel type with a nucleotide sequence identity of 95.3 % (hexon loop 1) and 96 % (hexon loop 2) to HAdV-D9. The penton base gene showed a novel sequence, distantly related to HAdV-D44. The E3 and E4 regions evolved significantly from their ancestors. The fibre gene was almost identical to the knob region of HAdV-D15 but showed an unrelated shaft sequence. In conclusion the genomics of this novel HAdV, designated the HAdV-D83 [P83H9F15] prototype and bearing a new penton base gene, supports the importance of viral evolution to understand modified tissue tropism, enhanced transmission, or altered virulence. PMID- 29039735 TI - Correction: Palmitoylated SCP1 is targeted to the plasma membrane and negatively regulates angiogenesis. PMID- 29039737 TI - Onsager's missing steps retraced. AB - Onsager's paper on phase transition and phase coexistence in anisotropic colloidal systems is a landmark in the theory of lyotropic liquid crystals. However, an uncompromising scrutiny of Onsager's original derivation reveals that it would be rigorously valid only for ludicrous values of the system's number density (of the order of the reciprocal of the number of particles). Based on Penrose's tree identity and an appropriate variant of the mean-field approach for purely repulsive, hard-core interactions, our theory shows that Onsager's theory is indeed valid for a reasonable range of densities. PMID- 29039738 TI - Vacancies and holes in bulk and at 180 degrees domain walls in lead titanate. AB - Domain walls (DWs) in ferroic materials exhibit a plethora of unexpected properties that are different from the adjacent ferroic domains. Still, the intrinsic/extrinsic origin of these properties remains an open question. Here, density functional theory calculations are used to investigate the interaction between vacancies and 180 degrees DWs in the prototypical ferroelectric PbTiO3, with a special emphasis on cationic vacancies and released holes. All vacancies are more easily formed within the DW than in the domains. This is interpreted, using a phenomenological model, as the partial compensation of an extra-tensile stress when the defect is created inside the DW. Oxygen vacancies are found to be always fully ionized, independently of the thermodynamic conditions, while cationic vacancies can be either neutral or partially ionized (oxygen-rich conditions), or fully ionized (oxygen-poor conditions). Therefore, in oxidizing conditions, holes are induced by neutral and partially ionized Pb vacancies. In the bulk PbTiO3, these holes are more stable as delocalized rather than small polarons, but at DWs, the two forms are found to be possible. PMID- 29039736 TI - A novel central nervous system-penetrating protease inhibitor overcomes human immunodeficiency virus 1 resistance with unprecedented aM to pM potency. AB - Antiretroviral therapy for HIV-1 infection/AIDS has significantly extended the life expectancy of HIV-1-infected individuals and reduced HIV-1 transmission at very high rates. However, certain individuals who initially achieve viral suppression to undetectable levels may eventually suffer treatment failure mainly due to adverse effects and the emergence of drug-resistant HIV-1 variants. Here, we report GRL-142, a novel HIV-1 protease inhibitor containing an unprecedented 6 5-5-ring-fused crown-like tetrahydropyranofuran, which has extremely potent activity against all HIV-1 strains examined with IC50 values of attomolar-to picomolar concentrations, virtually no effects on cellular growth, extremely high genetic barrier against the emergence of drug-resistant variants, and favorable intracellular and central nervous system penetration. GRL-142 forms optimum polar, van der Waals, and halogen bond interactions with HIV-1 protease and strongly blocks protease dimerization, demonstrating that combined multiple optimizing elements significantly enhance molecular and atomic interactions with a target protein and generate unprecedentedly potent and practically favorable agents. PMID- 29039739 TI - Charge-transfer modified embedded atom method dynamic charge potential for Li-Co O system. AB - To overcome the limitation of conventional fixed charge potential methods for the study of Li-ion battery cathode materials, a dynamic charge potential method, charge-transfer modified embedded atom method (CT-MEAM), has been developed and applied to the Li-Co-O ternary system. The accuracy of the potential has been tested and validated by reproducing a variety of structural and electrochemical properties of LiCoO2. A detailed analysis on the local charge distribution confirmed the capability of this potential for dynamic charge modeling. The transferability of the potential is also demonstrated by its reliability in describing Li-rich Li2CoO2 and Li-deficient LiCo2O4 compounds, including their phase stability, equilibrium volume, charge states and cathode voltages. These results demonstrate that the CT-MEAM dynamic charge potential could help to overcome the challenge of modeling complex ternary transition metal oxides. This work can promote molecular dynamics studies of Li ion cathode materials and other important transition metal oxides systems that involve complex electrochemical and catalytic reactions. PMID- 29039740 TI - Structure, magnetism and electronic properties in 3d-5d based double perovskite (Sr1-xYx)2FeIrO6. AB - The 3$d$-5$d$ based double perovskites are of current interest as they provide model system to study the interplay between electronic correlation ($U$) and spin orbit coupling (SOC). Here we report detailed structural, magnetic and transport properties of doped double perovskite material (Sr$_{1-x}$Y$_x$)$_2$FeIrO$_6$ with $x$ $?leq$ 0.2. With substitution of Y, system retains its original crystal structure but structural parameters modify with $x$ in nonmonotonic fashion. The magnetization data for Sr$_2$FeIrO$_6$ show antiferromagnetic type magnetic transition around 45 K, however, a close inspection in data indicates a weak magnetic phase transition around 120 K. No change of structural symmetry has been observed down to low temperature, although the lattice parameters show sudden changes around the magnetic transitions. Sr$_2$FeIrO$_6$ shows an insulating behavior over the whole temperature range which yet does not change with Y substitution. Nature of charge conduction is found to follow thermally activated Mott's variable range hopping and power law behavior for parent and doped samples, respectively. Interestingly, evolution of structural, magnetic and transport behavior in (Sr$_{1-x}$Y$_x$)$_2$FeIrO$_6$ is observed to reverse with $x$ $>$ 0.1 which is believed to arise due to change in transition metal ionic state. PMID- 29039741 TI - Passivation of black phosphorus saturable absorbers for reliable pulse formation of fiber lasers. AB - Black phosphorus (BP) has attracted increasing attention due to its unique electrical properties. In addition, the outstanding optical nonlinearity of BP has been demonstrated in various ways. Its functionality as a saturable absorber, in particular, has been validated in demonstrations of passive mode-locked lasers. However, normally, the performance of BP is degraded eventually by both thermal and chemical damage in ambient conditions. The passivation of BP is the critical issue to guarantee a stable performance of the optical devices. We quantitatively characterized the mode-locked lasers operated by BP saturable absorbers with diversified passivation materials such as polydimethylsiloxane (PDMS) or Al2O3, considering the atomic structure of the materials, and therefore the hydro-permeability of the passivation layers. Unlike the BP layers without passivation, we demonstrated that the Al2O3-passivated BP layer was protected from the surface oxidation reaction in the long-term, and the PDMS-passivated one had a short-term blocking effect. The quantitative analysis showed that the time dependent characteristics of the pulsed laser without passivation were changed with respect to the pulse duration, spectral width, and time-bandwidth product displaying 550 fs, 2.8 nm, and 0.406, respectively. With passivation, the changes were limited to <43 fs, <0.3 nm, and <0.012, respectively. PMID- 29039743 TI - Bioactivity and Cell Compatibility of beta-Wollastonite Derived from Rice Husk Ash and Limestone. AB - The aim of this study was to prepare beta-wollastonite using a green synthesis method (autoclaving technique) without organic solvents and to study its bioactivity. To prepare beta-wollastonite, the precursor ratio of CaO:SiO2 was set at 55:45. This mixture was autoclaved for 8 h and later sintered at 950 degrees C for 2 h. The chemical composition of the precursors was studied using X ray fluorescence (XRF), in which rice husk ash consists of 89.5 wt % of SiO2 in a cristobalite phase and calcined limestone contains 97.2 wt % of CaO. The X-ray diffraction (XRD) patterns after sintering showed that only beta-wollastonite was detected as the single phase. To study its bioactivity and degradation properties, beta-wollastonite samples were immersed in simulated body fluid (SBF) for various periods of time. Throughout the soaking period, the molar ratio of Ca/P obtained was in the range of 1.19 to 2.24, and the phase detected was amorphous calcium phosphate, which was confirmed by scanning electron microscope with energy dispersive X-ray analysis (SEM/EDX) and XRD. Fourier-transform infrared spectroscopy (FTIR) analysis indicated that the peaks of the calcium and phosphate ions increased when an amorphous calcium phosphate layer was formed on the surface of the beta-wollastonite sample. A cell viability and proliferation assay test was performed on the rice husk ash, calcined limestone, and beta wollastonite samples by scanning electron microscope. For heavy metal element evaluation, a metal panel that included As, Cd, Pb, and Hg was selected, and both precursor and beta-wollastonite fulfilled the requirement of an American Society for Testing and Materials (ASTM F1538-03) standard specification. Apart from that, a degradation test showed that the loss of mass increased incrementally as a function of soaking period. These results showed that the beta-wollastonite materials produced from rice husk ash and limestone possessed good bioactivity, offering potential for biomedical applications. PMID- 29039742 TI - Disease-Related Detection with Electrochemical Biosensors: A Review. AB - Rapid diagnosis of diseases at their initial stage is critical for effective clinical outcomes and promotes general public health. Classical in vitro diagnostics require centralized laboratories, tedious work and large, expensive devices. In recent years, numerous electrochemical biosensors have been developed and proposed for detection of various diseases based on specific biomarkers taking advantage of their features, including sensitivity, selectivity, low cost and rapid response. This article reviews research trends in disease-related detection with electrochemical biosensors. Focus has been placed on the immobilization mechanism of electrochemical biosensors, and the techniques and materials used for the fabrication of biosensors are introduced in details. Various biomolecules used for different diseases have been listed. Besides, the advances and challenges of using electrochemical biosensors for disease-related applications are discussed. PMID- 29039744 TI - Implementing a Multidisciplinary Tumor Board in the Community Practice Setting. AB - : Multidisciplinary tumor boards are an opportunity for radiologists to demonstrate value to referring clinicians, the hospital, and patients. Multidisciplinary tumor boards are commonly utilized in academic institutions, but may not be readily available in community practice. We discuss strategies academic radiologists may employ to assist in the implementation of a multidisciplinary tumor board in the community practice setting. SUMMARY: Strategies to assist in the implementation of a multidisciplinary tumor board in the community practice setting are described. PMID- 29039745 TI - Profiling the Fatty Acids Content of Ornamental Camellia Seeds Cultivated in Galicia by an Optimized Matrix Solid-Phase Dispersion Extraction. AB - Camellia (genus of flowering plants of fam. Theaceae) is one of the main crops in Asia, where tea and oil from leaves and seeds have been utilized for thousands of years. This plant is excellently adapted to the climate and soil of Galicia (northwestern Spain) and northern Portugal where it is grown not only as an ornamental plant, but to be evaluated as a source of bioactive compounds. In this work, the main fatty acids were extracted from Camellia seeds of four varieties of Camellia: sasanqua, reticulata, japonica and sinensis, by means of matrix solid phase dispersion (MSPD), and analyzed by gas chromatography (GC) with MS detection of the corresponding methyl esters. MSPD constitutes an efficient and greener alternative to conventional extraction techniques, moreover if it is combined with the use of green solvents such as limonene. The optimization of the MSPD extraction procedure has been conducted using a multivariate approach based on strategies of experimental design, which enabled the simultaneous evaluation of the factors influencing the extraction efficiency as well as interactions between factors. The optimized method was applied to characterize the fatty acids profiles of four Camellia varieties seeds, allowing us to compare their fatty acid composition. PMID- 29039746 TI - Preclinical Testing of an Oncolytic Parvovirus: Standard Protoparvovirus H-1PV Efficiently Induces Osteosarcoma Cell Lysis In Vitro. AB - Osteosarcoma is the most frequent malignant disease of the bone. On the basis of early clinical experience in the 1960s with H-1 protoparvovirus (H-1PV) in osteosarcoma patients, this effective oncolytic virus was selected for systematic preclinical testing on various osteosarcoma cell cultures. A panel of five human osteosarcoma cell lines (CAL 72, H-OS, MG-63, SaOS-2, U-2OS) was tested. Virus oncoselectivity was confirmed by infecting non-malignant human neonatal fibroblasts and osteoblasts used as culture models of non-transformed mesenchymal cells. H-1PV was found to enter osteosarcoma cells and to induce viral DNA replication, transcription of viral genes, and translation to viral proteins. After H-1PV infection, release of infectious viral particles from osteosarcoma cells into the supernatant indicated successful viral assembly and egress. Crystal violet staining revealed progressive cytomorphological changes in all osteosarcoma cell lines. Infection of osteosarcoma cell lines with the standard H 1PV caused an arrest of the cell cycle in the G2 phase, and these lines had a limited capacity for standard H-1PV virus replication. The cytotoxicity of wild type H-1PV virus towards osteosarcoma cells was compared in vitro with that of two variants, Del H-1PV and DM H-1PV, previously described as fitness variants displaying higher infectivity and spreading in human transformed cell lines of different origins. Surprisingly, wild-type H-1PV displayed the strongest cytostatic and cytotoxic effects in this analysis and thus seems the most promising for the next preclinical validation steps in vivo. PMID- 29039748 TI - Experimental and Computational Study of Ductile Fracture in Small Punch Tests. AB - A unified experimental-computational study on ductile fracture initiation and propagation during small punch testing is presented. Tests are carried out at room temperature with unnotched disks of different thicknesses where large-scale yielding prevails. In thinner specimens, the fracture occurs with severe necking under membrane tension, whereas for thicker ones a through thickness shearing mode prevails changing the crack orientation relative to the loading direction. Computational studies involve finite element simulations using a shear modified Gurson-Tvergaard-Needleman porous plasticity model with an integral-type nonlocal formulation. The predicted punch load-displacement curves and deformed profiles are in good agreement with the experimental results. PMID- 29039747 TI - Development of Useful Biomaterial for Bone Tissue Engineering by Incorporating Nano-Copper-Zinc Alloy (nCuZn) in Chitosan/Gelatin/Nano-Hydroxyapatite (Ch/G/nHAp) Scaffold. AB - Ceramic and metallic nanoparticles can improve the mechanical and biological properties of polymeric scaffolds for bone tissue engineering (BTE). In this work, nanohydroxyapatite (nHAp) and nano-copper-zinc alloy (nCuZn) were added to a chitosan/gelatin (Ch/G) scaffold in order to investigate the effects on morphological, physical, and biocompatibility properties. Scaffolds were fabricated by a freeze-drying technique using different pre-freezing temperatures. Microstructure and morphology were studied by scanning electron microscopy (SEM), glass transition (Tg) was studied using differential scanning calorimetry (DSC), cell growth was estimated by MTT assay, and biocompatibility was examined in vitro and in vivo by histochemistry analyses. Scaffolds and nanocomposite scaffolds presented interconnected pores, high porosity, and pore size appropriate for BTE. Tg of Ch/G scaffolds was diminished by nanoparticle inclusion. Mouse embryonic fibroblasts (MEFs) cells loaded in the Ch/G/nHAp/nCuZn nanocomposite scaffold showed suitable behavior, based on cell adhesion, cell growth, alkaline phosphatase (ALP) activity as a marker of osteogenic differentiation, and histological in vitro cross sections. In vivo subcutaneous implant showed granulation tissue formation and new tissue infiltration into the scaffold. The favorable microstructure, coupled with the ability to integrate nanoparticles into the scaffold by freeze-drying technique and the biocompatibility, indicates the potential of this new material for applications in BTE. PMID- 29039749 TI - Bionic Design, Materials and Performance of Bone Tissue Scaffolds. AB - Design, materials, and performance are important factors in the research of bone tissue scaffolds. This work briefly describes the bone scaffolds and their anatomic structure, as well as their biological and mechanical characteristics. Furthermore, we reviewed the characteristics of metal materials, inorganic materials, organic polymer materials, and composite materials. The importance of the bionic design in preoperative diagnosis models and customized bone scaffolds was also discussed, addressing both the bionic structure design (macro and micro structure) and the bionic performance design (mechanical performance and biological performance). Materials and performance are the two main problems in the development of customized bone scaffolds. Bionic design is an effective way to solve these problems, which could improve the clinical application of bone scaffolds, by creating a balance between mechanical performance and biological performance. PMID- 29039750 TI - Modeling of Body Weight Metrics for Effective and Cost-Efficient Conventional Factor VIII Dosing in Hemophilia A Prophylaxis. AB - The total body weight-based dosing strategy currently used in the prophylactic treatment of hemophilia A may not be appropriate for all populations. The assumptions that guide weight-based dosing are not valid in overweight and obese populations, resulting in overdosing and ineffective resource utilization. We explored different weight metrics including lean body weight, ideal body weight, and adjusted body weight to determine an alternative dosing strategy that is both safe and resource-efficient in normal and overweight/obese adult patients. Using a validated population pharmacokinetic model, we simulated a variety of dosing regimens using different doses, weight metrics, and frequencies; we also investigated the implications of assuming various levels of endogenous factor production. Ideal body weight performed the best across all of the regimens explored, maintaining safety while moderating resource consumption for overweight and obese patients. PMID- 29039752 TI - Aesthetic Diagnosis in Gestalt Therapy. AB - The diagnostic process in psychotherapy using the aesthetic evaluation is described in this article. Unlike the classical diagnostic process, which presents a result of comparing clinicians' observations with a diagnostic system (DSM, ICD, etc.), the aesthetic evaluation is a pre-reflexive, embodied, and preverbal process. A Gestalt Therapy theoretical frame is used to introduce a concept of the aesthetic diagnostic process. During this process, the clinicians use their own here-and-now presence, which takes part in the co-creation of the shared relational field during the therapeutic session. A specific procedure of the aesthetic evaluation is introduced. The clinical work with depressed clients is presented to illustrate this perspective. PMID- 29039751 TI - A Review: Expression of Aquaporins in Otitis Media. AB - Otitis media (OM) refers to inflammatory diseases of the middle ear (ME), regardless of cause or pathological mechanism. Among the molecular biological studies assessing the pathology of OM are investigations of the expression of aquaporins (AQPs) in the ME and Eustachian tube (ET). To date, fifteen studies have evaluated AQPs expression in the ME and ET. Although the expression of individual AQPs varies by species and model, eleven types of AQP, AQP1 to AQP11, were found to be expressed in mammalian ME and ET. The review showed that: (1) various types of AQPs are expressed in the ME and ET; (2) AQP expression may vary by species; and (3) the distribution and levels of expression of AQPs may depend on the presence or absence of inflammation, with variations even in the same species and same tissue. Fluid accumulation in the ME and ET is a common pathological mechanism for all types of OM, causing edema in the tissue and inducing inflammation, thereby possibly involving various AQPs. The expression patterns of several AQPs, especially AQP1, 4 and 5, were found to be altered in response to inflammatory stimuli, including lipopolysaccharide (LPS), suggesting that AQPs may have immunological functions in OM. PMID- 29039753 TI - PMA-Induced THP-1 Macrophage Differentiation is Not Impaired by Citrate-Coated Platinum Nanoparticles. AB - The innate immune system consists of several complex cellular and molecular mechanisms. During inflammatory responses, blood-circulating monocytes are driven to the sites of inflammation, where they differentiate into tissue macrophages. The research of novel nanomaterials applied to biomedical sciences is often limited by their toxicity or dangerous interactions with the immune cell functions. Platinum nanoparticles (PtNPs) have shown efficient antioxidant properties within several cells, but information on their potential harmful role in the monocyte-to-macrophage differentiation process is still unknown. Here, we studied the morphology and the release of cytokines in PMA-differentiated THP-1 pre-treated with 5 nm PtNPs. Although NP endocytosis was evident, we did not find differences in the cellular structure or in the release of inflammatory cytokines and chemokines compared to cells differentiated in PtNP-free medium. However, the administration of PtNPs to previously differentiated THP-1 induced massive phagocytosis of the PtNPs and a slight metabolism decrease at higher doses. Further investigation using undifferentiated and differentiated neutrophil-like HL60 confirmed the harmlessness of PtNPs with non-adherent innate immune cells. Our results demonstrate that citrate-coated PtNPs are not toxic with these immune cell lines, and do not affect the PMA-stimulated THP-1 macrophage differentiation process in vitro. PMID- 29039754 TI - The NAC Transcription Factor Gene OsY37 (ONAC011) Promotes Leaf Senescence and Accelerates Heading Time in Rice. AB - Leaf senescence is an important physiological process involving the degradation of a number of metabolites and their remobilization to new reproductive and storage organs. NAC (NAM, ATAF, and CUC) transcription factors are reported as important regulators of the senescence process. Here, we describe the identification and functional characterization of the NAC transcription factor gene, OsY37 (Oryza sativa Yellow37, ONAC011) obtained from Oryza sativa cv. indica, and japonica. We created transgenic plants expressing the OsY37 gene under the control of a strong and constitutive CaMV35S promoter. The resulting transgenic plants overexpressing OsY37 gene showed early heading and precocious senescence phenotype of flag leaves compared with wild-type plants. By contrast, blocking the function of this gene via RNAi (RNA interference) and CRES-T (Chimeric Repressor Silencing Technology) technology, delayed both heading time and leaf senescence. Furthermore, knockdown of OsY37 expression caused dwarfism and high accumulation of chlorophyll during the vegetative phase. Irrespective of early or delayed senescence, transgenic plants showed reduced grain yields. Our results indicate that OsY37 acts as a positive regulator of heading and senescence during the reproductive phase in rice. In addition, OsY37 may be involved in plant development and grain yield. PMID- 29039755 TI - Comparing RIEGL RiCOPTER UAV LiDAR Derived Canopy Height and DBH with Terrestrial LiDAR. AB - In recent years, LIght Detection And Ranging (LiDAR) and especially Terrestrial Laser Scanning (TLS) systems have shown the potential to revolutionise forest structural characterisation by providing unprecedented 3D data. However, manned Airborne Laser Scanning (ALS) requires costly campaigns and produces relatively low point density, while TLS is labour intense and time demanding. Unmanned Aerial Vehicle (UAV)-borne laser scanning can be the way in between. In this study, we present first results and experiences with the RIEGL RiCOPTER with VUX (r) -1UAV ALS system and compare it with the well tested RIEGL VZ-400 TLS system. We scanned the same forest plots with both systems over the course of two days. We derived Digital Terrain Model (DTMs), Digital Surface Model (DSMs) and finally Canopy Height Model (CHMs) from the resulting point clouds. ALS CHMs were on average 11.5 c m higher in five plots with different canopy conditions. This showed that TLS could not always detect the top of canopy. Moreover, we extracted trunk segments of 58 trees for ALS and TLS simultaneously, of which 39 could be used to model Diameter at Breast Height (DBH). ALS DBH showed a high agreement with TLS DBH with a correlation coefficient of 0.98 and root mean square error of 4.24 c m . We conclude that RiCOPTER has the potential to perform comparable to TLS for estimating forest canopy height and DBH under the studied forest conditions. Further research should be directed to testing UAV-borne LiDAR for explicit 3D modelling of whole trees to estimate tree volume and subsequently Above-Ground Biomass (AGB). PMID- 29039756 TI - Creative Arts Therapies as Temporary Home for Refugees: Insights from Literature and Practice. AB - One of the frequently overlooked psychosocial problems of refugees is the phenomenon of homesickness. Being forced into exile and unable to return home may cause natural feelings of nostalgia but may also result in emotional, cognitive, behavioral and physical adversities. According to the literature, the creative arts therapies with their attention to preverbal language-music, imagery, dance, role play, and movement-are able to reach individuals through the senses and promote successive integration, which can lead to transformation and therapeutic change. These forms of therapy can be a temporary home for refugees in the acculturation process, by serving as a safe and enactive transitional space. More specifically, working with dance and movement can foster the experience of the body as a home and thus provide a safe starting place, from which to regulate arousal, increase interoception, and symbolize trauma- and resource-related processes. Hearing, playing, and singing music from the home culture may assist individuals in maintaining their cultural and personal individuality. Creating drawings, paintings, or sculpturing around the topics of houses and environments from the past can help refugees to retain their identity through art, creating safe spaces for the future helps to look ahead, retain resources, and regain control. This article provides a literature review related to home and homesickness, and the role the arts therapies can play for refugees in transition. It further reports selected interview data on adverse life events and burdens in the host country from a German study. We propose that the creative arts therapies are not only a container that offers a temporary home, but can also serve as a bridge that gently guides refugees to a stepwise integration in the host country. Several clinical and research examples are presented suggesting that the support and affirmation through the creative arts can strengthen individuals in their process of moving from an old to a new environment. PMID- 29039757 TI - Data Access Based on a Guide Map of the Underwater Wireless Sensor Network. AB - Underwater wireless sensor networks (UWSNs) represent an area of increasing research interest, as data storage, discovery, and query of UWSNs are always challenging issues. In this paper, a data access based on a guide map (DAGM) method is proposed for UWSNs. In DAGM, the metadata describes the abstracts of data content and the storage location. The center ring is composed of nodes according to the shortest average data query path in the network in order to store the metadata, and the data guide map organizes, diffuses and synchronizes the metadata in the center ring, providing the most time-saving and energy efficient data query service for the user. For this method, firstly the data is stored in the UWSN. The storage node is determined, the data is transmitted from the sensor node (data generation source) to the storage node, and the metadata is generated for it. Then, the metadata is sent to the center ring node that is the nearest to the storage node and the data guide map organizes the metadata, diffusing and synchronizing it to the other center ring nodes. Finally, when there is query data in any user node, the data guide map will select a center ring node nearest to the user to process the query sentence, and based on the shortest transmission delay and lowest energy consumption, data transmission routing is generated according to the storage location abstract in the metadata. Hence, specific application data transmission from the storage node to the user is completed. The simulation results demonstrate that DAGM has advantages with respect to data access time and network energy consumption. PMID- 29039758 TI - X-pert MTB/RIF(r) Diagnosis of Twin Infants with Tuberculosis in Da Nang, Viet Nam. AB - 4-month-old twins were diagnosed with X-pert MTB/RIF(r) confirmed tuberculosis (TB)[...]. PMID- 29039759 TI - A DFT Study of the Geometrical, Spectroscopical and Reactivity Properties of Diindolylmethane-Phenylboronic Acid Hybrids. AB - The structure of the ortho-, meta- and para- hybrid diindolylmethane phenylboronic acids and their interactions were optimized with by a quantum chemical method, using density functional theory at the (DFT) level. Thus, infrared bands were assigned based on the scaled theoretical wavenumbers by correlating the respective experimental data of the molecules. In addition, the corresponding 1H-/13C-/11B-NMR experimental and theoretical chemical shifts were correlated. The target molecules showed a poor treatment of the OH shifts in the GIAO method due to the absence of explicit solvent effects in these calculations; therefore, they were explicitly considered with acetone molecules. Moreover, the electron density at the hydrogen bond critical point increased, generating stabilization energy, from weak to moderate or weak to strong, serving as an indicator of the strength of the hydrogen bond between the different intermolecular interactions. Finally, some properties related to the reactive behavior of the target molecules associated with their cytotoxic effects and metabolic pathways were also calculated. PMID- 29039760 TI - Sea Cucumber Glycosides: Chemical Structures, Producing Species and Important Biological Properties. AB - Sea cucumbers belonging to echinoderm are traditionally used as tonic food in China and other Asian countries. They produce abundant biologically active triterpene glycosides. More than 300 triterpene glycosides have been isolated and characterized from various species of sea cucumbers, which are classified as holostane and nonholostane depending on the presence or absence of a specific structural unit gamma(18,20)-lactone in the aglycone. Triterpene glycosides contain a carbohydrate chain up to six monosaccharide units mainly consisting of d-xylose, 3-O-methy-d-xylose, d-glucose, 3-O-methyl-d-glucose, and d-quinovose. Cytotoxicity is the common biological property of triterpene glycosides isolated from sea cucumbers. Besides cytotoxicity, triterpene glycosides also exhibit antifungal, antiviral and hemolytic activities. This review updates and summarizes our understanding on diverse chemical structures of triterpene glycosides from various species of sea cucumbers and their important biological activities. Mechanisms of action and structural-activity relationships (SARs) of sea cucumber glycosides are also discussed briefly. PMID- 29039761 TI - AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds. AB - In this research, a facile and effective approach was developed for the preparation of well-designed AuPd alloyed catalysts supported on magnetic halloysite nanotubes (HNTs@Fe3O4@AuPd). The microstructure and the magnetic properties of HNTs@Fe3O4@AuPd were confirmed by transmission electron microscopy (TEM), high resolution TEM (HRTEM), energy-dispersive X-ray spectroscopy (EDS), and vibrating sample magnetometry (VSM) analyses. The catalysts, fabricated by a cheap, environmentally friendly, and simple surfactant-free formation process, exhibited high activities during the reduction of 4-nitrophenol and various other nitroaromatic compounds. Moreover, the catalytic activities of the HNTs@Fe3O4@AuPd nanocatalysts were tunable via adjusting the atomic ratio of AuPd during the synthesis. As compared with the monometallic nanocatalysts (HNTs@Fe3O4@Au and HNTs@Fe3O4@Pd), the bimetallic alloyed HNTs@Fe3O4@AuPd nanocatalysts exhibited excellent catalytic activities toward the reduction of 4 nitrophenol (4-NP) to 4-aminophenol. Furthermore, the as-obtained HNTs@Fe3O4@AuPd can be recycled several times, while retaining its functionality due to the stability and magnetic separation property. PMID- 29039763 TI - Design of a Wireless Sensor System with the Algorithms of Heart Rate and Agility Index for Athlete Evaluation. AB - Athlete evaluation systems can effectively monitor daily training and boost performance to reduce injuries. Conventional heart-rate measurement systems can be easily affected by artifact movement, especially in the case of athletes. Significant noise can be generated owing to high-intensity activities. To improve the comfort for athletes and the accuracy of monitoring, we have proposed to combine robust heart rate and agility index monitoring algorithms into a small, light, and single node. A band-pass-filter-based R-wave detection algorithm was developed. The agility index was calculated by preprocessing with band-pass filtering and employing the zero-crossing detection method. The evaluation was conducted under both laboratory and field environments to verify the accuracy and reliability of the algorithm. The heart rate and agility index measurements can be wirelessly transmitted to a personal computer in real time by the ZigBee telecommunication system. The results show that the error rate of measurement of the heart rate is within 2%, which is comparable with that of the traditional wired measurement method. The sensitivity of the agility index, which could be distinguished as the activity speed, changed slightly. Thus, we confirmed that the developed algorithm could be used in an effective and safe exercise evaluation system for athletes. PMID- 29039762 TI - Marine-Derived 2-Aminoimidazolone Alkaloids. Leucettamine B-Related Polyandrocarpamines Inhibit Mammalian and Protozoan DYRK & CLK Kinases. AB - A large diversity of 2-aminoimidazolone alkaloids is produced by various marine invertebrates, especially by the marine Calcareous sponges Leucetta and Clathrina. The phylogeny of these sponges and the wide scope of 2 aminoimidazolone alkaloids they produce are reviewed in this article. The origin (invertebrate cells, associated microorganisms, or filtered plankton), physiological functions, and natural molecular targets of these alkaloids are largely unknown. Following the identification of leucettamine B as an inhibitor of selected protein kinases, we synthesized a family of analogues, collectively named leucettines, as potent inhibitors of DYRKs (dual-specificity, tyrosine phosphorylation regulated kinases) and CLKs (cdc2-like kinases) and potential pharmacological leads for the treatment of several diseases, including Alzheimer's disease and Down syndrome. We assembled a small library of marine sponge- and ascidian-derived 2-aminoimidazolone alkaloids, along with several synthetic analogues, and tested them on a panel of mammalian and protozoan kinases. Polyandrocarpamines A and B were found to be potent and selective inhibitors of DYRKs and CLKs. They inhibited cyclin D1 phosphorylation on a DYRK1A phosphosite in cultured cells. 2-Aminoimidazolones thus represent a promising chemical scaffold for the design of potential therapeutic drug candidates acting as specific inhibitors of disease-relevant kinases, and possibly other disease-relevant targets. PMID- 29039764 TI - Human Chorionic Gonadotropin as a Pivotal Endocrine Immune Regulator Initiating and Preserving Fetal Tolerance. AB - The pregnancy hormone, human chorionic gonadotropin (hCG), is crucially involved in processes such as implantation and placentation, two milestones of pregnancy whose successful progress is a prerequisite for adequate fetal growth. Moreover, hCG determines fetal fate by regulating maternal innate and adaptive immune responses allowing the acceptance of the foreign fetal antigens. As one of the first signals provided by the embryo to its mother, hCG has the potential to regulate very early pregnancy-driven immune responses, allowing the establishment and preservation of fetal tolerance. This mini review focuses on how hCG modulates the adaptive arm of the immune system including dendritic cells as key regulators of adaptive immune responses. PMID- 29039765 TI - MEMS Tunable Diffraction Grating for Spaceborne Imaging Spectroscopic Applications. AB - Diffraction gratings are among the most commonly used optical elements in applications ranging from spectroscopy and metrology to lasers. Numerous methods have been adopted for the fabrication of gratings, including microelectromechanical system (MEMS) fabrication which is by now mature and presents opportunities for tunable gratings through inclusion of an actuation mechanism. We have designed, modeled, fabricated and tested a silicon based pitch tunable diffraction grating (PTG) with relatively large resolving power that could be deployed in a spaceborne imaging spectrometer, for example in a picosatellite. We have carried out a detailed analytical modeling of PTG, based on a mass spring system. The device has an effective fill factor of 52% and resolving power of 84. Tuning provided by electrostatic actuation results in a displacement of 2.7 MU m at 40 V . Further, we have carried out vibration testing of the fabricated structure to evaluate its feasibility for spaceborne instruments. PMID- 29039766 TI - Identification and Characterization of TALE Homeobox Genes in the Endangered Fern Vandenboschia speciosa. AB - We report and discuss the results of a quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis of the expression patterns of seven three amino acid loop extension (TALE) homeobox genes (four KNOTTED-like homeobox (KNOX) and three BEL1-like homeobox (BELL) genes) identified after next generation sequencing (NGS) and assembly of the sporophyte and gametophyte transcriptomes of the endangered fern species Vandenboschia speciosa. Among the four KNOX genes, two belonged to the KNOX1 class and the other two belonged to the KNOX2 class. Analysis of the deduced amino acid sequences supported the typical domain structure of both types of TALE proteins, and the homology to TALE proteins of mosses, lycophytes, and seed plant species. The expression analyses demonstrate that these homeodomain proteins appear to have a key role in the establishment and development of the gametophyte and sporophyte phases of V. speciosa lifecycle, as well as in the control of the transition between both phases. Vandenboschia speciosa VsKNAT3 (a KNOX2 class protein) as well as VsBELL4 and VsBELL10 proteins have higher expression levels during the sporophyte program. On the contrary, one V. speciosa KNOX1 protein (VsKNAT6) and one KNOX2 protein (VsKNAT4) seem important during the development of the gametophyte phase. TALE homeobox genes might be among the key regulators in the gametophyte-to sporophyte developmental transition in regular populations that show alternation of generations, since some of the genes analyzed here (VsKNAT3, VsKNAT6, VsBELL4, and VsBELL6) are upregulated in a non-alternating population in which only independent gametophytes are found (they grow by vegetative reproduction outside of the range of sporophyte distribution). Thus, these four genes might trigger the vegetative propagation of the gametophyte and the repression of the sexual development in populations composed of independent gametophytes. This study represents a comprehensive identification and characterization of TALE homeobox genes in V. speciosa, and gives novel insights about the role of these genes in fern development. PMID- 29039767 TI - Trends and Weekly Cycles in a Large Swiss Emergency Centre: A 10 Year Period at the University Hospital of Bern. AB - Popular demand for high quality care has increased in recent years. This is also the case for medical services and support at all times of the day and night is nowadays required. During the last ten years, there has been a marked increase in the demands on hospital emergency hospitals, particularly in the Western industrialized countries. The present retrospective study investigates how the demands on a large Swiss university centre have changed over a period of 10 years. Patient numbers are differentiated by age, gender, nationality, weekday and mode of referral. A retrospective analysis was performed of the data of the patients admitted to the Emergency Centre of Bern University Medical Hospital (Inselspital) during the ten-year period from 2004 up to and including 2013 and who were treated as emergencies. A total of 264,272 patients were included in the study. It was shown that there was an uninterrupted annual increase from 23,555 patients in 2004 to 34,918 patients in 2013 (+48%). Most patients came to the Emergency Centre on Mondays, followed by Fridays. Because of the marked increase in life expectancy and the resulting demographic changes, there has been a marked increase in the number of older patients coming to the Emergency Centre for acute medical care. It was found that there were disproportionately high numbers of patients aged 20 to 49 years who were not Swiss citizens. In contrast, most patients over 60 were Swiss. In the coming years, emergency centres will have to adapt to the continued increase in patient numbers. This trend will continue, so that it is essential to consider the sociodemographic structure of a region when planning the availability of emergency medical care. PMID- 29039768 TI - New Cassane Diterpenoids from Caesalpinia sappan and their Antiplasmodial Activity. AB - One new cassane diterpene possessing an unusual N bridge between C-19 and C-20 named caesalsappanin R (1), as well as another new diterpene caesalsappanin S (2), were isolated from the seeds of Caesalpinia sappanwith methanol extract. Their structures were determined by spectroscopic analysis and examined alongside existing data from prior studies. Their biological activities were profiled by their antiplasmodial activity. PMID- 29039770 TI - Alternative Opportunistic Alert Diffusion to Support Infrastructure Failure during Disasters. AB - Opportunistic communications present a promising solution for disaster network recovery in emergency situations such as hurricanes, earthquakes, and floods, where infrastructure might be destroyed. Some recent works in the literature have proposed opportunistic-based disaster recovery solutions, but they have omitted the consideration of mobile devices that come with different network technologies and various initial energy levels. This work presents COPE, an energy-aware Cooperative OPportunistic alErt diffusion scheme for trapped survivors to use during disaster scenarios to report their position and ease their rescue operation. It aims to maintain mobile devices functional for as long as possible for maximum network coverage until reaching proximate rescuers. COPE deals with mobile devices that come with an assortment of networks and aims to perform systematic network interface selection. Furthermore, it considers mobile devices with various energy levels and allows low-energy nodes to hold their charge for longer time with the support of high-energy nodes. A proof-of-concept implementation has been performed to study the doability and efficiency of COPE, and to highlight the lessons learned. PMID- 29039769 TI - "Their Packaging Has Always Been Like a Power": A Qualitative Study of U.S. Smokers' Perceptions of Cigarette Pack Visual Design Features to Inform Product Regulation. AB - Cigarette packaging matters to consumer behavior. However, it is less clear which changes to packaging design would be salient for adult smokers. Such information is critically important to regulators in the United States who are charged with reviewing new tobacco products for their impact on population health. In this qualitative study, U.S. adult smokers (n = 33) participated in six telephone based focus groups in March 2017. Separate groups were comprised of lesbian, gay, and bisexual (LGB) participants; participants with less than four years of post secondary education; a mix of LGB and straight participants; and, the general population. All groups were purposely selected for diversity. Open thematic coding identified salient design elements used on cigarette packaging. Smokers articulated design elements' use, meaning, and links with consumer behaviors. Three themes were identified: (1) the power of color, (2) supporting color with other design elements (e.g., logos/images, typography, the pack itself), and (3) the combined product brand experience of multiple design elements. Participants linked design elements to product characteristics and to consumer behavior (e.g., purchase). As the Food and Drug Administration is charged with regulating tobacco products, these findings suggest the importance of considering the cigarette pack part of the characteristics of a product. PMID- 29039771 TI - Integrated Process Modeling-A Process Validation Life Cycle Companion. AB - During the regulatory requested process validation of pharmaceutical manufacturing processes, companies aim to identify, control, and continuously monitor process variation and its impact on critical quality attributes (CQAs) of the final product. It is difficult to directly connect the impact of single process parameters (PPs) to final product CQAs, especially in biopharmaceutical process development and production, where multiple unit operations are stacked together and interact with each other. Therefore, we want to present the application of Monte Carlo (MC) simulation using an integrated process model (IPM) that enables estimation of process capability even in early stages of process validation. Once the IPM is established, its capability in risk and criticality assessment is furthermore demonstrated. IPMs can be used to enable holistic production control strategies that take interactions of process parameters of multiple unit operations into account. Moreover, IPMs can be trained with development data, refined with qualification runs, and maintained with routine manufacturing data which underlines the lifecycle concept. These applications will be shown by means of a process characterization study recently conducted at a world-leading contract manufacturing organization (CMO). The new IPM methodology therefore allows anticipation of out of specification (OOS) events, identify critical process parameters, and take risk-based decisions on counteractions that increase process robustness and decrease the likelihood of OOS events. PMID- 29039772 TI - Influence of Time-Pickoff Circuit Parameters on LiDAR Range Precision. AB - A pulsed time-of-flight (TOF) measurement-based Light Detection and Ranging (LiDAR) system is more effective for medium-long range distances. As a key ranging unit, a time-pickoff circuit based on automatic gain control (AGC) and constant fraction discriminator (CFD) is designed to reduce the walk error and the timing jitter for obtaining the accurate time interval. Compared with Cramer Rao lower bound (CRLB) and the estimation of the timing jitter, four parameters based Monte Carlo simulations are established to show how the range precision is influenced by the parameters, including pulse amplitude, pulse width, attenuation fraction and delay time of the CFD. Experiments were carried out to verify the relationship between the range precision and three of the parameters, exclusing pulse width. It can be concluded that two parameters of the ranging circuit (attenuation fraction and delay time) were selected according to the ranging performance of the minimum pulse amplitude. The attenuation fraction should be selected in the range from 0.2 to 0.6 to achieve high range precision. The selection criterion of the time-pickoff circuit parameters is helpful for the ranging circuit design of TOF LiDAR system. PMID- 29039773 TI - A Review of Statistical Failure Time Models with Application of a Discrete Hazard Based Model to 1Cr1Mo-0.25V Steel for Turbine Rotors and Shafts. AB - Producing predictions of the probabilistic risks of operating materials for given lengths of time at stated operating conditions requires the assimilation of existing deterministic creep life prediction models (that only predict the average failure time) with statistical models that capture the random component of creep. To date, these approaches have rarely been combined to achieve this objective. The first half of this paper therefore provides a summary review of some statistical models to help bridge the gap between these two approaches. The second half of the paper illustrates one possible assimilation using 1Cr1Mo-0.25V steel. The Wilshire equation for creep life prediction is integrated into a discrete hazard based statistical model-the former being chosen because of its novelty and proven capability in accurately predicting average failure times and the latter being chosen because of its flexibility in modelling the failure time distribution. Using this model it was found that, for example, if this material had been in operation for around 15 years at 823 K and 130 MPa, the chances of failure in the next year is around 35%. However, if this material had been in operation for around 25 years, the chance of failure in the next year rises dramatically to around 80%. PMID- 29039774 TI - Transnational Dynamics Amid Poor Regulations: Taiwan's Asbestos Ban Actions and Experiences. AB - This article describes the history of the asbestos use regulation process in Taiwan and the associated factors leading to its total ban in 2018. Despite the long history of asbestos mining and manufacturing since the Japanese colonial period, attempts to understand the impact of asbestos on the health of the population and to control its use did not emerge until the early 1980s. We attempted to investigate the driving forces and obstructions involved in asbestos regulations by reviewing available public sources and scientific journal articles and conducting interviews with key propagators of the asbestos regulation and ban. Correlation between asbestos exposure and asbestos-related diseases has already been established; however, authorities have been unable to effectively regulate the extensive application of asbestos in various light industries that support economic growth since the 1960s. More stringent regulations on asbestos use in industries and an eventual ban were caused indirectly by appeals made by visionary scholars and healthcare professionals but also due to the subsidence of asbestos-related industries. With the elucidation of factors that affect asbestos regulation and ban, a thorough long-term healthcare plan for the neglected victims of asbestos-related diseases and upstream measures for policy change must be developed. PMID- 29039775 TI - Physiological and Perceptual Responses to Nordic Walking in a Natural Mountain Environment. AB - Background: Interest around Nordic Walking (NW) has increased in recent years. However, direct comparisons of NW with normal walking (W), particularly in ecologically valid environments is lacking. The aim of our study was to compare NW and W, over long distances in a natural mountain environment. Methods: Twenty one subjects (13 male/8 female, aged 41 +/- 12 years, body mass index BMI 24.1 +/ 3.7), walked three distinct uphill paths (length 2.2/3.4/7 km) with (NW) or without (W) walking poles over two separate days. Heart rate (HR), energy expenditure (EE), step length (SL), walking speed (WS), total steps number (SN) and rating of perceived exertion (RPE) were monitored. Results: HR (+18%) and EE (+20%) were higher in NW than in W whilst RPE was similar. SN (-12%) was lower and SL (+15%) longer in NW. WS was higher (1.64 vs. 1.53 m s-1) in NW. Conclusions: Our data confirm that, similarly to previous laboratory studies, differences in a range of walking variables are present between NW and W when performed in a natural environment. NW appears to increase EE compared to W, despite a similar RPE. Thus, NW could be a useful as aerobic training modality for weight control and cardiorespiratory fitness. PMID- 29039776 TI - Roles of Aryl Hydrocarbon Receptor in Aromatase-Dependent Cell Proliferation in Human Osteoblasts. AB - Aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor and its expression is influenced by environmental compounds, such as 3 methylcholanthrene (3-MC) and beta-naphthoflavone (beta-NF). AhR and its downstream genes, such as CYP1A1, are considered to play a pivotal role in xenobiotic responses. AhR signaling has also been proposed to mediate osteogenesis in experimental animals, but its details have remained unclear. Therefore, in this study, we examined the possible roles of AhR in human bone. Immunohistochemical analysis revealed that AhR was detected in both osteoblasts and osteoclasts. We then screened AhR-target genes using a microarray analysis in human osteoblastic hFOB cells. Results of microarray and subsequent PCR analysis did reveal that estrogen metabolizing and synthesizing enzymes, such as CYP1B1 and aromatase, were increased by 3-MC in hFOB and osteosarcoma cell line, MG-63. The subsequent antibody cytokine analysis also demonstrated that interleukin 1beta and -6 expression was increased by 3-MC and beta-NF in hFOB cells and these interleukins were well known to induce aromatase. We then examined the cell proliferation rate of hFOB and MG-63 cells co-treated with 3-MC and testosterone as an aromatase substrate. The status of cell proliferation in both hFOB and MG 63 cells was stimulated by 3-MC and testosterone treatment, which was also inhibited by an estrogen blocker, aromatase inhibitor, or AhR antagonist. These findings indicated that AhR could regulate estrogen synthesis and metabolism in bone tissues through cytokine/aromatase signaling. PMID- 29039777 TI - The Specific Mitogen- and Stress-Activated Protein Kinase MSK1 Inhibitor SB 747651A Modulates Chemokine-Induced Neutrophil Recruitment. AB - Mitogen-activated protein kinase (MAPK) signaling is involved in a variety of cellular functions. MAPK-dependent functions rely on phosphorylation of target proteins such as mitogen- and stress-activated protein kinase 1 (MSK1). MSK1 participates in the early gene expression and in the production of pro- and anti inflammatory cytokines. However, the role of MSK1 in neutrophil recruitment remains elusive. Here, we show that chemokine macrophage inflammatory protein-2 (CXCL2) enhances neutrophil MSK1 expression. Using intravital microscopy and time lapsed video analysis of cremasteric microvasculature in mice, we studied the effect of pharmacological suppression of MSK1 by SB-747651A on CXCL2-elicited neutrophil recruitment. SB-747651A treatment enhanced CXCL2-induced neutrophil adhesion while temporally attenuating neutrophil emigration. CXCL2-induced intraluminal crawling was reduced following SB-747651A treatment. Fluorescence activated cell sorting analysis of integrin expression revealed that SB-747651A treatment attenuated neutrophil integrin alphaMbeta2 (Mac-1) expression following CXCL2 stimulation. Both the transmigration time and detachment time of neutrophils from the venule were increased following SB-747651A treatment. It also decreased the velocity of neutrophil migration in cremasteric tissue in CXCL2 chemotactic gradient. SB-747651A treatment enhanced the extravasation of neutrophils in mouse peritoneal cavity not at 1-2 h but at 3-4 h following CXCL2 stimulation. Collectively, our data suggest that inhibition of MSK1 by SB-747651A treatment affects CXCL2-induced neutrophil recruitment by modulating various steps of the recruitment cascade in vivo. PMID- 29039778 TI - Comparison of Two Sources of Clinical Audit Data to Assess the Delivery of Diabetes Care in Aboriginal Communities. AB - The objective of this study was to determine the concordance between data extracted from two Clinical Decision Support Systems regarding diabetes testing and monitoring at Aboriginal Community Controlled Health Services in Australia. De-identified PenCAT and Communicare Systems data were extracted from the services allocated to the intervention arm of a diabetes care trial, and intra class correlations for each extracted item were derived at a service level. Strong to very strong correlations between the two data sources were found regarding the total number of patients with diabetes per service (Intra-class correlation [ICC] = 0.99), as well as the number (ICC = 0.98-0.99) and proportion (ICC = 0.96) of patients with diabetes by gender. The correlation was moderate for the number and proportion of Type 2 diabetes patients per service in the group aged 18-34 years (ICC = 0.65 and 0.8-0.82 respectively). Strong to very strong correlations were found for numbers and proportions of patients being tested for diabetes, and for appropriate monitoring of patients known to have diabetes (ICC = 0.998-1.00). This indicated a generally high degree of concordance between whole-service data extracted by the two Clinical Decision Support Systems. Therefore, the less expensive or less complex option (depending on the individual circumstances of the service) may be appropriate for monitoring diabetes testing and care. However, the extraction of data about subgroups of patients may not be interchangeable. PMID- 29039779 TI - Seco-B-Ring Steroidal Dienynes with Aromatic D Ring: Design, Synthesis and Biological Evaluation. AB - Continuing our structure-activity studies on the vitamin D analogs with the altered intercyclic seco-B-ring fragment, we designed compounds possessing dienyne system conjugated with the benzene D ring. Analysis of the literature data and the docking experiments seemed to indicate that the target compounds could mimic the ligands with a good affinity to the vitamin D receptor (VDR). Multi-step synthesis of the C/D-ring building block of the tetralone structure was achieved and its enol triflate was coupled with the known A-ring fragments, possessing conjugated enyne moiety, using Sonogashira protocol. The structures of the final products were confirmed by NMR, UV and mass spectroscopy. Their binding affinities for the full-length human VDR were determined and it was established that compound substituted at C-2 with exomethylene group showed significant binding to the receptor. This analog was also able to induce monocytic differentiation of HL-60 cells. PMID- 29039780 TI - Housing and Health of Kiribati Migrants Living in New Zealand. AB - Settlement is a complex process of adjustment for migrants and refugees. Drawing on recent research on the settlement experiences of Kiribati migrants and their families living in New Zealand, this article examines the role of housing as an influencer of the settlement and health of Kiribati migrants. Using qualitative methodology, in-depth interviews were conducted with fourteen Kiribati migrants (eight women and six men) representing 91 family members about the key issues and events that shaped their settlement in New Zealand. The stories told by participants affirm the association between housing and health. The study serves as an important reminder that children bear a great cost from living in poorly insulated and damp housing, and adults bear the mental costs, including social isolation resulting from inadequate rental housing. Detailed information about how this migrant group entered the private rental housing market, by taking over the rental leases of other Kiribati migrants vacating their rental properties, indicated some of the unintended consequences related to a lack of incentives for landlords to make improvements. With the most vulnerable families most at risk from inadequate housing, this research concludes that there is a need for minimum housing standards to protect tenants. PMID- 29039781 TI - China's Insurance Regulatory Reform, Corporate Governance Behavior and Insurers' Governance Effectiveness. AB - External regulation is an important mechanism to improve corporate behavior in emerging markets. China's insurance governance regulation, which began to supervise and guide insurance corporate governance behavior in 2006, has experienced a complex process of reform. This study tested our hypotheses with a sample of 85 firms during 2010-2011, which was obtained by providing a questionnaire to all of China's shareholding insurance companies. The empirical study results generally show that China's insurance governance effectiveness has significantly improved through strict regulation. Insurance corporate governance can improve business acumen and risk-control ability, but no significant evidence was found to prove its influence on profitability, as a result of focusing less attention on governance than on management. State ownership is associated with higher corporate governance effectiveness than non-state ownership. Listed companies tend to outperform non-listed firms, and life insurance corporate governance is more effective than that of property insurers. This study not only contributes to the comprehensive understanding of corporate governance effectiveness but also to the literature by highlighting the effect of corporate governance regulation in China's insurance industry and other emerging economies of the financial sector. PMID- 29039782 TI - Antibacterial and Tribological Performance of Carbonitride Coatings Doped with W, Ti, Zr, or Cr Deposited on AISI 316L Stainless Steel. AB - Carbonitride (CNx) coatings have existed for several decades but are not well understood. Related studies have indicated that CNx coatings exhibit behaviors comparable to diamond-like carbon (DLC) coatings. Metal-doped CNx coatings are expected to show superior performance to single CNx coatings. In this study, a CNx coating and a group of CNx coatings with 6 at. % metal doping (W, Ti, Zr, or Cr) were prepared on biograde AISI 316L stainless steel (SS316L) substrates, and they were then characterized and studied for antibacterial and wear performance. The microstructure, constituent phase, nanohardness, adhesion, surface roughness, and contact angle were evaluated. The antimicrobial test used Staphylococcus aureus and followed the Japanese Industrial Standard JIS Z 2801:2010. Finally, the wear behavior was assessed. The results showed that the CNx coating was a composite of amorphous CNx and amorphous C structures. The metal doping caused crystalline metal carbides/nitrides to form in the CNx coatings, which weakened their overall integrity. All the coatings showed antimicrobial ability for the SS316L samples. The CNx-Zr coating, the surface of which had the highest hydrophilicity, produced the best antibacterial performance. However, the CNx-Zr coating showed lower wear resistance than the CNx-W and CNx-Ti coatings. The CNx Ti coating with a highly hydrophilic surface exhibited the lowest antibacterial ability. PMID- 29039783 TI - Quantitative Phosphoproteomic Analysis Provides Insight into the Response to Short-Term Drought Stress in Ammopiptanthus mongolicus Roots. AB - Drought is one of the major abiotic stresses that negatively affects plant growth and development. Ammopiptanthus mongolicus is an ecologically important shrub in the mid-Asia desert region and used as a model for abiotic tolerance research in trees. Protein phosphorylation participates in the regulation of various biological processes, however, phosphorylation events associated with drought stress signaling and response in plants is still limited. Here, we conducted a quantitative phosphoproteomic analysis of the response of A. mongolicus roots to short-term drought stress. Data are available via the iProx database with project ID IPX0000971000. In total, 7841 phosphorylation sites were found from the 2019 identified phosphopeptides, corresponding to 1060 phosphoproteins. Drought stress results in significant changes in the abundance of 103 phosphopeptides, corresponding to 90 differentially-phosphorylated phosphoproteins (DPPs). Motif-x analysis identified two motifs, including [pSP] and [RXXpS], from these DPPs. Functional enrichment and protein-protein interaction analysis showed that the DPPs were mainly involved in signal transduction and transcriptional regulation, osmotic adjustment, stress response and defense, RNA splicing and transport, protein synthesis, folding and degradation, and epigenetic regulation. These drought-corresponsive phosphoproteins, and the related signaling and metabolic pathways probably play important roles in drought stress signaling and response in A. mongolicus roots. Our results provide new information for understanding the molecular mechanism of the abiotic stress response in plants at the posttranslational level. PMID- 29039784 TI - Crosstalk Influence between P38MAPK and Autophagy on Mitochondria-Mediated Apoptosis Induced by Anti-Fas Antibody/Actinomycin D in Human Hepatoma Bel-7402 Cells. AB - Our previous study indicated that anti-Fas antibody/actinomycin D (AF/AD) induced apoptosis of human hepatocellular carcinoma Bel-7402 cells; however, crosstalk influence between P38MAPK and autophagy on mitochondria-mediated apoptosis induced by AF/AD in Bel-7402 cells remains unclear. Therefore, effect of AF/AD on apoptosis, autophagy, phosphorylated-P38MAPK (p-P38MAPK), and membrane potential (DeltaPsim) with or without the P38MAPK inhibitor SB203580 or the autophagy inhibitor 3-methyladenine (3-MA) in Bel-7402 cells was investigated in the present study. The results showed that AF/AD resulted in induction of apoptosis concomitant with autophagy, upregulation of p-P38MAPK and autophagy-associated gene proteins (Atg5-Atg12 protein complex, Atg7, Atg10, Beclin-1, LC3 I, and LC3 II), and downregulation of DeltaPsim in Bel-7402 cells. In contrast, SB203580 attenuated the effects of AF/AD in Bel-7402 cells. Furthermore, the findings also demonstrated that 3-MA inhibited the impact of AF/AD on autophagy, Atg5-Atg12 protein complex, Atg7, Atg10, Beclin-1, LC3 I, LC3 II, and DeltaPsim, and promoted the influence of AF/AD on apoptosis and p-P38MAPK in Bel-7402 cells. Taken together, we conclude that crosstalk between P38MAPK and autophagy regulates mitochondria-mediated apoptosis induced by AF/AD in Bel-7402 cells. PMID- 29039785 TI - Prospective Comparison of F-18 Choline PET/CT Scan Versus Axial MRI for Detecting Bone Metastasis in Biochemically Relapsed Prostate Cancer Patients. AB - We compared fluor-18 choline positron emission tomography/computed tomography (PET/CT) and axial skeleton magnetic resonance imaging (MRI) prospectively obtained for the detection of bone metastases in non-castrated patients with biochemically recurrent prostate cancer following primary treatment. PET/CT was performed 45 min post-injection of 3-4 MBq/kg F-18 methyl choline. MRI included T1- and fluid sensitive T2-weighted images of the spine and pelvis. Readers were initially blinded from other results and all scans underwent independent double reading. The best valuable comparator (BVC) defined the metastatic status. On the basis of the BVC, 15 out of 64 patients presented with 24 bone metastases. On a patient level, the sensitivity and specificity of MRI and PET were not significantly different. On a lesion level, the sensitivity of MRI was significantly better compared to PET, and the specificity did not differ significantly. In conclusion, axial MRI is an interesting screening tool for the detection of bone metastases because of its low probability of false negative results. However, F-18 choline PET is a valuable addition as it can overrule false positive MRI results and detect non-axial metastases. PMID- 29039787 TI - Cold Treatment Induces Transient Mitochondrial Fragmentation in Arabidopsis thaliana in a Way that Requires DRP3A but not ELM1 or an ELM1-Like Homologue, ELM2. AB - The number, size and shape of polymorphic plant mitochondria are determined at least partially by mitochondrial fission. Arabidopsis mitochondria divide through the actions of a dynamin-related protein, DRP3A. Another plant-specific factor, ELM1, was previously shown to localize DRP3A to mitochondrial fission sites. Here, we report that mitochondrial fission is not completely blocked in the Arabidopsis elm1 mutant and that it is strongly manifested in response to cold treatment. Arabidopsis has an ELM1 paralogue (ELM2) that seems to have only a limited role in mitochondrial fission in the elm1 mutant. Interestingly, cold induced mitochondrial fragmentation was also observed in the wild-type, but not in a drp3a mutant, suggesting that cold-induced transient mitochondrial fragmentation requires DRP3A but not ELM1 or ELM2. DRP3A: GFP localized from the cytosol to mitochondrial fission sites without ELM1 after cold treatment. Together, these results suggest that Arabidopsis has a novel, cold-induced type of mitochondrial fission in which DRP3A localizes to mitochondrial fission sites without the involvement of ELM1 or ELM2. PMID- 29039786 TI - TGF-beta-Induced Endothelial-Mesenchymal Transition in Fibrotic Diseases. AB - Fibrotic diseases are characterized by net accumulation of extracellular matrix proteins in affected organs leading to their dysfunction and ultimate failure. Myofibroblasts have been identified as the cells responsible for the progression of the fibrotic process, and they originate from several sources, including quiescent tissue fibroblasts, circulating CD34+ fibrocytes and the phenotypic conversion of various cell types into activated myofibroblasts. Several studies have demonstrated that endothelial cells can transdifferentiate into mesenchymal cells through a process termed endothelial- mesenchymal transition (EndMT) and that this can give rise to activated myofibroblasts involved in the development of fibrotic diseases. Transforming growth factor beta (TGF-beta) has a central role in fibrogenesis by modulating the fibroblast phenotype and function, inducing myofibroblast transdifferentiation and promoting matrix accumulation. In addition, TGF-beta by inducing EndMT may further contribute to the development of fibrosis. Despite extensive investigation of the pathogenesis of fibrotic diseases, no effective treatment strategies are available. Delineation of the mechanisms responsible for initiation and progression of fibrotic diseases is crucial for the development of therapeutic strategies for the treatment of the disease. In this review, we summarize the role of the TGF-beta signaling pathway and EndMT in the development of fibrotic diseases and discuss their therapeutic potential. PMID- 29039789 TI - Electrospun Phospholipid Fibers as Micro-Encapsulation and Antioxidant Matrices. AB - Electrospun phospholipid (asolectin) microfibers were investigated as antioxidants and encapsulation matrices for curcumin and vanillin. These phospholipid microfibers exhibited antioxidant properties which increased after the encapsulation of both curcumin and vanillin. The total antioxidant capacity (TAC) and the total phenolic content (TPC) of curcumin/phospholipid and vanillin/phospholipid microfibers remained stable over time at different temperatures (refrigerated, ambient) and pressures (vacuum, ambient). 1H-NMR confirmed the chemical stability of both encapsulated curcumin and vanillin within phospholipid fibers. Release studies in aqueous media revealed that the phenolic bioactives were released mainly due to swelling of the phospholipid fiber matrix over time. The above studies confirm the efficacy of electrospun phospholipid microfibers as encapsulation and antioxidant systems. PMID- 29039788 TI - Impact of Natural Compounds on DNA Methylation Levels of the Tumor Suppressor Gene RASSF1A in Cancer. AB - Epigenetic inactivation of tumor suppressor genes (TSG) is a fundamental event in the pathogenesis of human cancer. This silencing is accomplished by aberrant chromatin modifications including DNA hypermethylation of the gene promoter. One of the most frequently hypermethylated TSG in human cancer is the Ras Association Domain Family 1A (RASSF1A) gene. Aberrant methylation of RASSF1A has been reported in melanoma, sarcoma and carcinoma of different tissues. RASSF1A hypermethylation has been correlated with tumor progression and poor prognosis. Reactivation of epigenetically silenced TSG has been suggested as a therapy in cancer treatment. In particular, natural compounds isolated from herbal extracts have been tested for their capacity to induce RASSF1A in cancer cells, through demethylation. Here, we review the treatment of cancer cells with natural supplements (e.g., methyl donors, vitamins and polyphenols) that have been utilized to revert or prevent the epigenetic silencing of RASSF1A. Moreover, we specify pathways that were involved in RASSF1A reactivation. Several of these compounds (e.g., reseveratol and curcumin) act by inhibiting the activity or expression of DNA methyltransferases and reactive RASSF1A in cancer. Thus natural compounds could serve as important agents in tumor prevention or cancer therapy. However, the exact epigenetic reactivation mechanism is still under investigation. PMID- 29039790 TI - ProLanGO: Protein Function Prediction Using Neural Machine Translation Based on a Recurrent Neural Network. AB - With the development of next generation sequencing techniques, it is fast and cheap to determine protein sequences but relatively slow and expensive to extract useful information from protein sequences because of limitations of traditional biological experimental techniques. Protein function prediction has been a long standing challenge to fill the gap between the huge amount of protein sequences and the known function. In this paper, we propose a novel method to convert the protein function problem into a language translation problem by the new proposed protein sequence language "ProLan" to the protein function language "GOLan", and build a neural machine translation model based on recurrent neural networks to translate "ProLan" language to "GOLan" language. We blindly tested our method by attending the latest third Critical Assessment of Function Annotation (CAFA 3) in 2016, and also evaluate the performance of our methods on selected proteins whose function was released after CAFA competition. The good performance on the training and testing datasets demonstrates that our new proposed method is a promising direction for protein function prediction. In summary, we first time propose a method which converts the protein function prediction problem to a language translation problem and applies a neural machine translation model for protein function prediction. PMID- 29039791 TI - Synthesis of Chiral TFA-Protected alpha-Amino Aryl-Ketone Derivatives with Friedel-Crafts Acylation of alpha-Amino Acid N-Hydroxysuccinimide Ester. AB - Chiral N-protected alpha-amino aryl-ketones are one of the useful precursors used in the synthesis of various biologically active compounds and can be constructed via Friedel-Crafts acylation of N-protected alpha-amino acids. One of the drawbacks of this reaction is the utilization of toxic, corrosive and moisture sensitive acylating reagents. In peptide construction via amide bond formation, N hydroxysuccinimide ester (OSu), which has high storage stability, can react rapidly with amino components and produces fewer side reactions, including racemization. This study reports the first synthesis and utilization of N trifluoroacetyl (TFA)-protected alpha-amino acid-OSu as a potential acyl donor for Friedel-Crafts acylation into various arenes. The TFA-protected isoleucine derivative and its diastereomer TFA-protected allo-isoleucine derivative were investigated to check the retention of alpha-proton chirality in the Friedel Crafts reaction. Further utilization of OSu in other branched-chain and unbranched-chain amino acids results in an adequate yield of TFA-protected alpha amino aryl-ketone without loss of optical purity. PMID- 29039792 TI - Health-Promoting Phytochemicals from 11 Mustard Cultivars at Baby Leaf and Mature Stages. AB - Mustard is a Brassica vegetable that provides a number of phytonutrients. However, the phytonutrient profile of mustard has been relatively limited. We analyzed the glucosinolates and their hydrolysis products, carotenoids, total anthocyanin and phenolic contents, and antioxidant capacity of the leaves of 11 mustard cultivars grown in a greenhouse at the baby leaf and mature stages. An aliphatic glucosinolate sinigrin and its hydrolysis products allyl isothiocyanate and 1-cyano-2,3-epithiopropane were the major phytonutrients in the mustard leaves. Carotenoids beta-carotene, lutein, violaxanthin, and neoxanthin were detected. We found phytonutrient concentration and their change with plant growth were cultivar-dependent. The %RDA value for vitamin A calculated using beta carotene content and retinol activity equivalents suggests that mustard cultivars used in this study can be a good source of vitamin A. Phenolic contents and antioxidant capacity also varied among cultivars and between physiological stages. Our results suggest that mustard leaves are rich in various phytochemicals and their composition depends on cultivar and the physiological stage. This is the first report on phytochemical composition in various mustard cultivars at different physiological stages. PMID- 29039793 TI - Pharmacokinetic Comparison of Seven Major Bio-Active Components in Normal and Blood Stasis Rats after Oral Administration of Herb Pair Danggui-Honghua by UPLC TQ/MS. AB - The compatibility between Danggui (Angelicae Sinensis Radix) and Honghua (Carthami Flos) is a known herb pair, which could activate blood circulation and dissipate blood stasis effects. In this paper, we quantified seven main bio active components (hydroxysafflor yellow A, caffeic acid, p-coumaric acid, kaempferol-3-O-rutinoside, ferulic acid, 3-n-butylphthalide, and ligustilide) in plasma samples in vivo by UPLC-TQ/MS method and investigatedwhether the pharmacokinetic (PK) behaviors of the seven components could be altered in blood stasis rats after oral administration of the Gui-Hong extracts. It was found that the Cmax and AUC0-t of these components in blood stasis rats had increasing tendency compared with normal rats. Most components in model and normal rats had significant difference in some pharmacokinetic parameters, which indicated that the metabolism enzymes and transporters involved in the metabolism and disposition of these bio-active componentsmay bealtered in blood stasis rats. This study was the first report about the pharmacokinetic investigation between normal and blood stasis rats after oral administrationof Gui-Hong extracts, and these results are important and valuable for better clinical applications of Gui Hong herb pair and relatedTCM formulae. PMID- 29039794 TI - Heat Shock Protein-Inducing Property of Diarylheptanoid Containing Chalcone Moiety from Alpinia katsumadai. AB - A new diarylheptanoid containing a chalcone moiety, katsumain H (1), was isolated from the seeds of Alpinia katsumadai. The structure was elucidated using a combination of 1D/2D NMR spectroscopy and mass spectrometry data analysis. The absolute configurations of C-3, C-5, and C-7 in 1 were assigned based on its optical rotation and after comparing its NMR chemical shifts with those of its diastereoisomers, katsumain E and katsumain F, which were previously isolated from this plant and characterized. In this study, the stimulatory effects of compounds 1 and 2 were evaluated on heat shock factor 1 (HSF1), heat shock protein 27 (HSP27), and HSP70. Compounds 1 and 2 increased the expression of HSF1 (1.056- and 1.200-fold, respectively), HSP27 (1.312- and 1.242-fold, respectively), and HSP70 (1.234- and 1.271-fold, respectively), without increased cytotoxicity. PMID- 29039796 TI - Development and Validation of the Celiac Disease-Children's Activities Report (CD Chart) for Promoting Self-Management among Children and Adolescents. AB - Adherence to a restrictive gluten-free diet is the only known treatment for celiac disease (CD). Children and adolescents with CD encounter challenges while managing the diet in daily activities. Understanding their participation characteristics is lacking. The aim was to describe the development and validation process of the Celiac Disease-Children's Activities Report (CD-Chart). The final CD-Chart includes nine food-related activities that are measured by six core dimensions: frequency, preference, preparation, involvement, help, and self determination. Participants were 126 children (8-11 years) and adolescents (12-18 years) with CD, and 30 healthy matched controls. Factor analysis was performed and psychometric properties were measured. Content and face validity was established and the CD-Chart showed adequate internal consistency as measured by the preference dimension (alpha = 0.81). Factor analysis revealed two distinct factors, social environment and close family environment. Construct validity demonstrated that the group with CD required significantly more pre-preparation for food-related activities than controls, (t(38) = 76.25, p < 0.001) and further differences as well as similarities were found between groups. Primary results indicate that the CD-Chart may serve as a practical tool for acquiring information about participation characteristics in food-related activities, strengths and challenges of children and adolescents with CD, to promote self management, diet adherence, and well-being. PMID- 29039797 TI - Dispersions of Goethite Nanorods in Aprotic Polar Solvents. AB - Colloidal suspensions of anisotropic nanoparticles can spontaneously self organize in liquid-crystalline phases beyond some concentration threshold. These phases often respond to electric and magnetic fields. At lower concentrations, usual isotropic liquids are observed but they can display very strong Kerr and Cotton-Mouton effects (i.e., field-induced particle orientation). For many examples of these colloidal suspensions, the solvent is water, which hinders most electro-optic applications. Here, for goethite (alpha-FeOOH) nanorod dispersions, we show that water can be replaced by polar aprotic solvents, such as N-methyl-2 pyrrolidone (NMP) and dimethylsulfoxide (DMSO), without loss of colloidal stability. By polarized-light microscopy, small-angle X-ray scattering and electro-optic measurements, we found that the nematic phase, with its field response properties, is retained. Moreover, a strong Kerr effect was also observed with isotropic goethite suspensions in these polar aprotic solvents. Furthermore, we found no significant difference in the behavior of both the nematic and isotropic phases between the aqueous and non-aqueous dispersions. Our work shows that goethite nanorod suspensions in polar aprotic solvents, suitable for electro-optic applications, can easily be produced and that they keep all their outstanding properties. It also suggests that this solvent replacement method could be extended to the aqueous colloidal suspensions of other kinds of charged anisotropic nanoparticles. PMID- 29039795 TI - Milk Intake at Midlife and Cognitive Decline over 20 Years. The Atherosclerosis Risk in Communities (ARIC) Study. AB - Background: Faster rates of cognitive decline are likely to result in earlier onset of cognitive impairment and dementia. d-galactose, a derivative of lactose, is used in animal studies to induce neurodegeneration. Milk is the primary source of lactose in the human diet, and its effects on cognitive decline have not been fully evaluated. Objective: Assess the association of milk intake with change in cognitive function over 20 years. Methods: A total of 13,751 participants of the Atherosclerosis Risk in Communities (ARIC) cohort completed a food frequency questionnaire and three neurocognitive evaluations from 1990 through 2013. Two single nucleotide polymorphisms (SNPs) were used to determine lactase persistence (LCT-13910 C/T for Whites and LCT-14010 G/C for Blacks). Mixed-effects models were used to study the association of milk intake with cognitive change. Multiple imputations by chained equations were used to account for attrition. Results: Milk intake greater than 1 glass/day was associated with greater decline in the global z-score over a 20-year period. The difference in decline was 0.10 (95% CI: 0.16, 0.03) z-scores, or an additional 10% decline, relative to the group reporting "almost never" consuming milk. Conclusions: Replication of these results is warranted in diverse populations with greater milk intake and higher variability of lactase persistence genotype. PMID- 29039798 TI - The Effect of Taurine on the Recovery from Eccentric Exercise-Induced Muscle Damage in Males. AB - Eccentric exercise is known to bring about microstructural damage to muscle, initiating an inflammatory cascade involving various reactive oxygen species. This, in turn, can significantly impair physical performance over subsequent days. Taurine, a powerful endogenous antioxidant, has previously been shown to have a beneficial effect on muscle damage markers and recovery when taken for a few days to several weeks prior to eccentric exercise. However, to date no studies have looked at the effects of supplementing over the days following eccentric exercise on performance recovery. Thus, this study aimed to determine whether supplementing with taurine over three days following eccentric exercise attenuated the rise in serum creatine kinase and improved performance recovery in males. In a blinded, randomized, crossover design, ten recreationally-fit male participants completed 60 eccentric contractions of the biceps brachii muscle at maximal effort. Following this, participants were supplemented with 0.1 g?kg-1 body weight?day-1 of either taurine or rice flour in capsules. Over the next three mornings participants underwent blood tests for the analysis of the muscle damage marker creatine kinase and carried out performance measures on the isokinetic dynamometer. They also continued to consume the capsules in the morning and evening. The entire protocol was repeated two weeks later on the alternate arm and supplement. Significant decreases were seen in all performance measures from pre- to 24-h post-eccentric exercise (p < 0.001) for both taurine and placebo, indicating the attainment of muscle damage. Significant treatment effects were observed only for peak eccentric torque (p < 0.05). No significant time * treatment effects were observed (all p > 0.05). Serum creatine kinase levels did not significantly differ over time for either treatments, nor between treatments (p > 0.05). These findings suggest that taurine supplementation taken twice daily for 72 h following eccentric exercise-induced muscle damage may help improve eccentric performance recovery of the biceps brachii. PMID- 29039799 TI - Solvent-Free Addition of Indole to Aldehydes: Unexpected Synthesis of Novel 1-[1 (1H-Indol-3-yl) Alkyl]-1H-Indoles and Preliminary Evaluation of Their Cytotoxicity in Hepatocarcinoma Cells. AB - New 1-[1-(1H-indol-3-yl) alkyl]-1H-indoles, surprisingly, have been obtained from the addition of indole to a variety of aldehydes under neat conditions. CaO, present in excess, was fundamental for carrying out the reaction with paraformaldehyde. Under the same reaction conditions, aromatic and heteroaromatic aldehydes afforded only classical bis (indolyl) aryl indoles. In this paper, the role of CaO, together with the regiochemistry and the mechanism of the reaction, are discussed in detail. The effect of some selected 3,3'- and 1,3'-diindolyl methane derivatives on cell proliferation of the hepatoma cell line FaO was also evaluated. PMID- 29039800 TI - High Ethanol Contents of Spirit Drinks in Kibera Slums, Kenya: Implications for Public Health. AB - Cheap licit and artisanal illicit spirit drinks have been associated with numerous outbreaks of alcohol poisoning especially with methanol. This study aimed to evaluate the quality of cheap spirit drinks in Kibera slums in Nairobi County, Kenya. The samples consisted of cheap licit spirits (n = 11) and the artisanal spirit drink, 'chang'aa', (n = 28). The parameters of alcoholic strength and volatile composition were used as indicators of quality and were determined using gas chromatography with flame ionization detection (GC-FID) and gas chromatography-mass spectrometry (GC-MS) respectively. The ranges for alcoholic strength were 42.8-85.8% vol and 28.3-56.7% vol for chang'aa and licit spirit drinks respectively, while the pH ranges were 3.3-4.2 and 4.4-4.8 for chang'aa and licit spirit drinks respectively. The majority of volatiles were found in artisanal spirits and they included higher alcohols, ethyl esters and carbonyl compounds. The alcoholic strength of all the artisanal spirits (100%) and 91% of the licit spirits was above the 40% vol of standard spirits such as vodka. The high ethanol content of the alcohol products was the only element of public health significance in this study. PMID- 29039801 TI - Stability of Commercially Available Macular Carotenoid Supplements in Oil and Powder Formulations. AB - We previously identified that the concentration of zeaxanthin in some commercially available carotenoid supplements did not agree with the product's label claim. The conclusion of this previous work was that more quality assurance was needed to guarantee concordance between actual and declared concentrations of these nutrients i.e., lutein (L) zeaxanthin (Z) and meso-zeaxanthin (MZ) in commercially available supplements. Since this publication, we performed further analyses using different commercially available macular carotenoid supplements. Three capsules from one batch of eight products were analysed at two different time points. The results have been alarming. All of the powder filled products (n = 3) analysed failed to comply with their label claim (L: 19-74%; Z: 57-73%; MZ: 83-97%); however, the oil filled soft gel products (n = 5) met or were above their label claim (L: 98-122%; Z: 117-162%; MZ: 97-319%). We also identified that the carotenoid content of the oil filled capsules were stable over time (e.g., L average percentage change: -1.7%), but the powder filled supplements degraded over time (e.g., L average percentage change: -17.2%). These data are consistent with our previous work, and emphasize the importance of using carotenoid interventions in oil based formulas rather than powder filled formulas. PMID- 29039802 TI - Effects of an Advocacy Trial on Food Industry Salt Reduction Efforts-An Interim Process Evaluation. AB - The decisions made by food companies are a potent factor shaping the nutritional quality of the food supply. A number of non-governmental organizations (NGOs) advocate for corporate action to reduce salt levels in foods, but few data define the effectiveness of advocacy. This present report describes the process evaluation of an advocacy intervention delivered by one Australian NGO directly to food companies to reduce the salt content of processed foods. Food companies were randomly assigned to intervention (n = 22) or control (n = 23) groups. Intervention group companies were exposed to pre-planned and opportunistic communications, and control companies to background activities. Seven pre-defined interim outcome measures provided an indication of the effect of the intervention and were assessed using intention-to-treat analysis. These were supplemented by qualitative data from nine semi-structured interviews. The mean number of public communications supporting healthy food made by intervention companies was 1.5 versus 1.8 for control companies (p = 0.63). Other outcomes, including the mean number of news articles, comments and reports (1.2 vs. 1.4; p = 0.72), a published nutrition policy (23% vs. 44%; p = 0.21), public commitment to the Australian government's Food and Health Dialogue (FHD) (41% vs. 61%; p = 0.24), evidence of a salt reduction plan (23% vs. 30%; p = 0.56), and mean number of communications with the NGO (15 vs. 11; p = 0.28) were also not significantly different. Qualitative data indicated the advocacy trial had little effect. The absence of detectable effects of the advocacy intervention on the interim markers indicates there may be no impact of the NGO advocacy trial on the primary outcome of salt reduction in processed foods. PMID- 29039803 TI - The Influence of the Polymer Amount on the Biological Properties of PCL/ZrO2 Hybrid Materials Synthesized via Sol-Gel Technique. AB - Organic/inorganic hybrid materials are attracting considerable attention in the biomedical area. The sol-gel process provides a convenient way to produce many bioactive organic-inorganic hybrids. Among those, poly(e-caprolactone)/zirconia (PCL/ZrO2) hybrids have proved to be bioactive with no toxic materials. The aim of this study was to investigate the effects of these materials on the cellular response as a function of the PCL content, in order to evaluate their potential use in the biomedical field. For this purpose, PCL/ZrO2 hybrids containing 6, 12, 24, and 50 wt % of PCL were synthesized by the sol-gel method. The effects of their presence on the NIH-3T3 fibroblast cell line carrying out direct cell number counting, MTT, cell damage assays, flow cytometry-based analysis of cell cycle progression, and immunoblotting experiments. The results confirm and extend the findings that PCL/ZrO2 hybrids are free from toxicity. The hybrids containing 12 and 24 wt % PCL, (more than 6 and 50 wt % ones) enhance cell proliferation when compared to pure ZrO2 by affecting cell cycle progression. The finding that the content of PCL in PCL/ZrO2 hybrids differently supports cell proliferation suggests that PCL/ZrO2 hybrids could be useful tools with different potential clinical applications. PMID- 29039804 TI - Review and Analysis of Peak Tracking Techniques for Fiber Bragg Grating Sensors. AB - Fiber Bragg Grating (FBG) sensors are among the most popular elements for fiber optic sensor networks used for the direct measurement of temperature and strain. Modern FBG interrogation setups measure the FBG spectrum in real-time, and determine the shift of the Bragg wavelength of the FBG in order to estimate the physical parameters. The problem of determining the peak wavelength of the FBG from a spectral measurement limited in resolution and noise, is referred as the peak-tracking problem. In this work, the several peak-tracking approaches are reviewed and classified, outlining their algorithmic implementations: the methods based on direct estimation, interpolation, correlation, resampling, transforms, and optimization are discussed in all their proposed implementations. Then, a simulation based on coupled-mode theory compares the performance of the main peak tracking methods, in terms of accuracy and signal to noise ratio resilience. PMID- 29039805 TI - Ferritin Heavy Subunit Silencing Blocks the Erythroid Commitment of K562 Cells via miR-150 up-Regulation and GATA-1 Repression. AB - Erythroid differentiation is a complex and multistep process during which an adequate supply of iron for hemoglobinization is required. The role of ferritin heavy subunit, in this process, has been mainly attributed to its capacity to maintain iron in a non-toxic form. We propose a new role for ferritin heavy subunit (FHC) in controlling the erythroid commitment of K562 erythro-myeloid cells. FHC knockdown induces a change in the balance of GATA transcription factors and significantly reduces the expression of a repertoire of erythroid specific genes, including alpha- and gamma-globins, as well as CD71 and CD235a surface markers, in the absence of differentiation stimuli. These molecular changes are also reflected at the morphological level. Moreover, the ability of FHC-silenced K562 cells to respond to the erythroid-specific inducer hemin is almost completely abolished. Interestingly, we found that this new role for FHC is largely mediated via regulation of miR-150, one of the main microRNA implicated in the cell-fate choice of common erythroid/megakaryocytic progenitors. These findings shed further insight into the biological properties of FHCand delineate a role in erythroid differentiation where this protein does not act as a mere iron metabolism-related factor but also as a critical regulator of the expression of genes of central relevance for erythropoiesis. PMID- 29039806 TI - Algal Foams Applied in Fixed-Bed Process for Lead(II) Removal Using Recirculation or One-Pass Modes. AB - The incorporation of brown algae into biopolymer beads or foams for metal sorption has been previously reported. However, the direct use of these biomasses for preparing foams is a new approach. In this study, two kinds of porous foams were prepared by ionotropic gelation using algal biomass (AB, Laminaria digitata) or alginate (as the reference) and applied for Pb(II) sorption. These foams (manufactured as macroporous discs) were packed in filtration holders (simulating fixed-bed column) and the system was operated in either a recirculation or a one pass mode. Sorption isotherms, uptake kinetics and sorbent reuse were studied in the recirculation mode (analogous to batch system). In the one-pass mode (continuous fixed-bed system), the influence of parameters such as flow rate, feed metal concentration and bed height were investigated on both sorption and desorption. In addition, the effect of Cu(II) on Pb(II) recovery from binary solutions was also studied in terms of both sorption and desorption. Sorption isotherms are well fitted by the Langmuir equation while the pseudo-second order rate equation described well both sorption and desorption kinetic profiles. The study of material regeneration confirms that the reuse of the foams was feasible with a small mass loss, even after 9 cycles. In the one-pass mode, for alginate foams, a slower flow rate led to a smaller saturation volume, while the effect of flow rate was less marked for AB foams. Competitive study suggests that the foams have a preference for Pb(II) over Cu(II) but cannot selectively remove Pb(II) from the binary solution. PMID- 29039807 TI - Modeling Calculation and Synthesis of Alumina Whiskers Based on the Vapor Deposition Process. AB - This study simulated the bulk structure and surface energy of Al2O3 based on the density of states (DOS) and studied the synthesis and microstructure of one dimensional Al2O3 whiskers. The simulation results indicate that the (001) surface has a higher surface energy than the others. The growth mechanism of Al2O3 whiskers follows vapor-solid (VS) growth. For the (001) surface with the higher surface energy, the driving force of crystal growth would be more intense in the (001) plane, and the alumina crystal would tend to grow preferentially along the direction of the (001) plane from the tip of the crystal. The Al2O3 grows to the shape of whisker with [001] orientation, which is proved both through modeling and experimentation. PMID- 29039809 TI - Diffusive and Metabolic Constraints to Photosynthesis in Quinoa during Drought and Salt Stress. AB - Quinoa (Chenopodium quinoa Willd.) has been proposed as a hardy alternative to traditional grain crops in areas with warm-to-hot climates that are likely to experience increased drought and salt stress in the future. We characterised the diffusive and metabolic limitations to photosynthesis in quinoa exposed to drought and salt stress in isolation and combination. Drought-induced pronounced stomatal and mesophyll limitations to CO2 transport, but quinoa retained photosynthetic capacity and photosystem II (PSII) performance. Saline water (300 mmol NaCl-equivalent to 60% of the salinity of sea-water) supplied in identical volumes to the irrigation received by the control and drought treatments induced similar reductions in stomatal and mesophyll conductance, but also reduced carboxylation of ribulose-1,5-bisphosphate carboxylase/oxygenase, regeneration of ribulose-1,5-bisphosphate, increased non-photochemical dissipation of energy as heat and impaired PSII electron transport. This suggests that ion toxicity reduced PN via interference with photosynthetic enzymes and degradation of pigment-protein complexes within the thylakoid membranes. The results of this study demonstrate that the photosynthetic physiology of quinoa is resistant to the effects of drought, but quinoa may not be a suitable crop for areas subject to strong salt stress or irrigation with a concentration of saline water equivalent to a 300 mmol NaCl solution. PMID- 29039808 TI - A Diagnosis of Denial: How Mental Health Classification Systems Have Struggled to Recognise Family Violence as a Serious Risk Factor in the Development of Mental Health Issues for Infants, Children, Adolescents and Adults. AB - Child and adolescent mental health services (CAMHS) routinely overlook assessing for, and providing treatment to, infants and children living with family violence, despite family violence being declared endemic across the globe. As contemporary neuro-developmental research recognises the harm of being exposed to early relational trauma, key international diagnostic texts such as the DSM-5 and ICD-10 struggle to acknowledge or appreciate the relational complexities inherent in addressing family violence and its impacts during childhood. These key texts directly influence thinking, funding and research imperatives in adult services as well as CAMHS, however, they rarely reference family violence. Their emphasis is to pathologise conditions over exploring causality which may be attributable to relational violence. Consequently, CAMHS can miss important indicators of family violence, misdiagnose disorders and unwittingly, not address unacceptable risks in the child's caregiving environment. Notwithstanding urgent safety concerns, ongoing exposure to family violence significantly heightens the development of mental illness amongst children. CAMHS providers cannot and should not rely on current diagnostic manuals alone. They need to act now to see family violence as a significant and important risk factor to mental health and to treat its impacts on children before these develop into enduring neurological difficulties. PMID- 29039810 TI - Effects of Moisture and Particle Size on Quantitative Determination of Total Organic Carbon (TOC) in Soils Using Near-Infrared Spectroscopy. AB - Near-Infrared Spectroscopy is a cost-effective and environmentally friendly technique that could represent an alternative to conventional soil analysis methods, including total organic carbon (TOC). Soil fertility and quality are usually measured by traditional methods that involve the use of hazardous and strong chemicals. The effects of physical soil characteristics, such as moisture content and particle size, on spectral signals could be of great interest in order to understand and optimize prediction capability and set up a robust and reliable calibration model, with the future perspective of being applied in the field. Spectra of 46 soil samples were collected. Soil samples were divided into three data sets: unprocessed, only dried and dried, ground and sieved, in order to evaluate the effects of moisture and particle size on spectral signals. Both separate and combined normalization methods including standard normal variate (SNV), multiplicative scatter correction (MSC) and normalization by closure (NCL), as well as smoothing using first and second derivatives (DV1 and DV2), were applied to a total of seven cases. Pretreatments for model optimization were designed and compared for each data set. The best combination of pretreatments was achieved by applying SNV and DV2 on partial least squares (PLS) modelling. There were no significant differences between the predictions using the three different data sets (p < 0.05). Finally, a unique database including all three data sets was built to include all the sources of sample variability that were tested and used for final prediction. External validation of TOC was carried out on 16 unknown soil samples to evaluate the predictive ability of the final combined calibration model. Hence, we demonstrate that sample preprocessing has minor influence on the quality of near infrared spectroscopy (NIR) predictions, laying the ground for a direct and fast in situ application of the method. Data can be acquired outside the laboratory since the method is simple and does not need more than a simple band ratio of the spectra. PMID- 29039811 TI - Nutrients in Infancy: Progress and Prospects. AB - This monograph, based on a special issue of Nutrients, contains 31 papers-5 reviews and 26 original publications-that reflect the wide spectrum of current research on nutrients and infancy [...]. PMID- 29039813 TI - Transcriptomic Analysis of Long Non-Coding RNAs and Coding Genes Uncovers a Complex Regulatory Network That Is Involved in Maize Seed Development. AB - Long non-coding RNAs (lncRNAs) have been reported to be involved in the development of maize plant. However, few focused on seed development of maize. Here, we identified 753 lncRNA candidates in maize genome from six seed samples. Similar to the mRNAs, lncRNAs showed tissue developmental stage specific and differential expression, indicating their putative role in seed development. Increasing evidence shows that crosstalk among RNAs mediated by shared microRNAs (miRNAs) represents a novel layer of gene regulation, which plays important roles in plant development. Functional roles and regulatory mechanisms of lncRNAs as competing endogenous RNAs (ceRNA) in plants, particularly in maize seed development, are unclear. We combined analyses of consistently altered 17 lncRNAs, 840 mRNAs and known miRNA to genome-wide investigate potential lncRNA mediated ceRNA based on "ceRNA hypothesis". The results uncovered seven novel lncRNAs as potential functional ceRNAs. Functional analyses based on their competitive coding-gene partners by Gene Ontology (GO) and KEGG biological pathway demonstrated that combined effects of multiple ceRNAs can have major impacts on general developmental and metabolic processes in maize seed. These findings provided a useful platform for uncovering novel mechanisms of maize seed development and may provide opportunities for the functional characterization of individual lncRNA in future studies. PMID- 29039814 TI - Microstructuring of Mesoporous Titania Films Loaded with Silver Salts to Enhance the Photocatalytic Degradation of Methyl Blue under Visible Light. AB - The microstructuring of the distribution of silver nanoparticles (NPs) in mesoporous titania films loaded with silver salts, using two-beam interference lithography leading to 1 Dimension (1D) grating, induces variations in the photocatalytic efficiency. The influence of the structuration was tested on the degradation of methyl blue (MB) under ultraviolet (UV) and visible illumination, giving rise to a significant improvement of the photocatalytic efficiency. The periodic distribution of the NPs was characterized by transmission electron microscopy (TEM), high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and scanning electron microscopy (SEM). PMID- 29039815 TI - Vibration Noise Modeling for Measurement While Drilling System Based on FOGs. AB - Aiming to improve survey accuracy of Measurement While Drilling (MWD) based on Fiber Optic Gyroscopes (FOGs) in the long period, the external aiding sources are fused into the inertial navigation by the Kalman filter (KF) method. The KF method needs to model the inertial sensors' noise as the system noise model. The system noise is modeled as white Gaussian noise conventionally. However, because of the vibration while drilling, the noise in gyros isn't white Gaussian noise any more. Moreover, an incorrect noise model will degrade the accuracy of KF. This paper developed a new approach for noise modeling on the basis of dynamic Allan variance (DAVAR). In contrast to conventional white noise models, the new noise model contains both the white noise and the color noise. With this new noise model, the KF for the MWD was designed. Finally, two vibration experiments have been performed. Experimental results showed that the proposed vibration noise modeling approach significantly improved the estimated accuracies of the inertial sensor drifts. Compared the navigation results based on different noise model, with the DAVAR noise model, the position error and the toolface angle error are reduced more than 90%. The velocity error is reduced more than 65%. The azimuth error is reduced more than 50%. PMID- 29039812 TI - Molecular Aspects of Circadian Pharmacology and Relevance for Cancer Chronotherapy. AB - The circadian timing system (CTS) controls various biological functions in mammals including xenobiotic metabolism and detoxification, immune functions, cell cycle events, apoptosis and angiogenesis. Although the importance of the CTS is well known in the pharmacology of drugs, it is less appreciated at the clinical level. Genome-wide studies highlighted that the majority of drug target genes are controlled by CTS. This suggests that chronotherapeutic approaches should be taken for many drugs to enhance their effectiveness. Currently chronotherapeutic approaches are successfully applied in the treatment of different types of cancers. The chronotherapy approach has improved the tolerability and antitumor efficacy of anticancer drugs both in experimental animals and in cancer patients. Thus, chronobiological studies have been of importance in determining the most appropriate time of administration of anticancer agents to minimize their side effects or toxicity and enhance treatment efficacy, so as to optimize the therapeutic ratio. This review focuses on the underlying mechanisms of the circadian pharmacology i.e., chronopharmacokinetics and chronopharmacodynamics of anticancer agents with the molecular aspects, and provides an overview of chronotherapy in cancer and some of the recent advances in the development of chronopharmaceutics. PMID- 29039816 TI - Dampness and Moisture Problems in Norwegian Homes. AB - The occurrence of dampness and mold in the indoor environment is associated with respiratory-related disease outcomes. Thus, it is pertinent to know the magnitude of such indoor environment problems to be able to estimate the potential health impact in the population. In the present study, the moisture damage in 10,112 Norwegian dwellings was recorded based on building inspection reports. The levels of moisture damage were graded based on a condition class (CC), where CC0 is immaculate and CC1 acceptable (actions not required), while CC2 and CC3 indicate increased levels of damage that requires action. Of the 10,112 dwellings investigated, 3125 had verified moisture or mold damage. This amounts to 31% of the surveyed dwellings. Of these, 27% had CC2 as the worst grade, whereas 4% had CC3 as the worst grade level. The room types and building structures most prone to moisture damage were (in rank order) crawl spaces, basements, un-insulated attics, cooling rooms, and bathrooms. The high proportion of homes with moisture damage indicate a possible risk for respiratory diseases in a relatively large number of individuals, even if only the more extensive moisture damages and those located in rooms where occupants spend the majority of their time would have a significant influence on adverse health effects. PMID- 29039817 TI - Replacing Nitrogen by Sulfur: From Structurally Disordered Eumelanins to Regioregular Thiomelanin Polymers. AB - The oxidative polymerization of 5,6-dihydroxybenzothiophene (DHBT), the sulfur analog of the key eumelanin building block 5,6-dihydroxyindole (DHI), was investigated to probe the role of nitrogen in eumelanin build-up and properties. Unlike DHI, which gives a typical black insoluble eumelanin polymer on oxidation, DHBT is converted to a grayish amorphous solid (referred to as thiomelanin) with visible absorption and electron paramagnetic resonance properties different from those of DHI melanin. Mass spectrometry experiments revealed gradational mixtures of oligomers up to the decamer level. Quite unexpectedly, nuclear magnetic resonance (NMR) analysis of the early oligomer fractions indicated linear, 4-, and 7-linked structures in marked contrast with DHI, which gives highly complex mixtures of partially degraded oligomers. Density functional theory (DFT) calculations supported the tendency of DHBT to couple via the 4- and 7-positions. These results uncover the role of nitrogen as a major determinant of the structural diversity generated by the polymerization of DHI, and point to replacement by sulfur as a viable entry to regioregular eumelanin-type materials for potential applications for surface functionalization by dip coating. PMID- 29039818 TI - The Role of B Cell Targeting in Chronic Graft-Versus-Host Disease. AB - Chronic graft-versus-host disease (cGVHD) is a leading cause of late morbidity and mortality following allogeneic stem cell transplantation. Current therapies, including corticosteroids and calcineurin inhibitors, are only effective in roughly 50% of cases; therefore, new treatment strategies are under investigation. What was previously felt to be a T cell disease has more recently been shown to involve activation of both T and B cells, as well as a number of cytokines. With a better understanding of its pathophysiology have come more expansive preclinical and clinical trials, many focused on B cell signaling. This report briefly reviews our current understanding of cGVHD pathophysiology and reviews clinical and preclinical trials with B cell-targeted agents. PMID- 29039820 TI - Drugs for common bacterial infections in adults. PMID- 29039821 TI - Tisagenlecleucel (Kymriah) for ALL. PMID- 29039822 TI - Ribociclib (Kisqali) for advanced or metastatic breast cancer. PMID- 29039823 TI - [Chronic heart failure: New challenges and new perspectives]. AB - Chronic heart failure is an important global public health problem. This is associated with extremely poor prognosis, high readmission rates, and substantial treatment costs in patients. The paper gives the main aspects of the setting-up of a specialized service to patients with heart failure. PMID- 29039824 TI - [Influence of modifiable cardiovascular risk factors on antihypertensive therapy efficiency escape]. AB - AIM: To evaluate the influence of cardiovascular risk factors on antihypertensive therapy (AHT) efficiency escape (EE). SUBJECTS AND METHODS: Data on 59 patients with grades 1-3 hypertension (Stages I-II) were analyzed. During chosen AHT, 24 hour blood pressure monitoring was done at baseline, 1 and 3 months after beginning the observation to identify/rule out the AHT EE phenomenon. RESULTS: The AHT EE group (Group 1) as compared with the group that needed no therapy correction within 3 months (Group 2) was observed to have the following: elevated fasting blood glucose levels (FBGL) (5.8+/-0.8 vs 5.3+/-0.7 mmol/l; p=0.008) and higher impaired glucose tolerance (IGT) rates (8 (27.6%) vs 4 (13.3%) cases (p=0.03)); a more number of smoking patients (8 (27.6%) vs 3 (10%) cases; p=0.02); a larger number of patients with a compromised family history of cardiovascular diseases (17 (58.6%) vs 11 (36%); p=0.02). Furthermore, in Group 1 baseline average systolic blood pressure during 24 hours (SBP-24) proved to be higher than that in Group 2 (127.4+/-4.2 vs 122.4+/-6.8 mm Hg; p=0.002). Odds ratio (OR) for developing the EE phenomenon increased by 60% with a rise of 0.5 mmol in FBGL (OR, 1.60; 95% confidence interval (CI), 1.06 to 2.4; p=0.02) and by 18% with an increase of 1 mm Hg in baseline SBP-24 (OR, 1.18; 95% CI, 1.05 to 1.33; p=0.004). Multivariate analysis indicated that the independent predictors of AHT EE were a compromised family history (OR, 3.7; 95% CI, 1.1 to 12.1; p=0.03) and IGT (OR, 4.1; 95% CI, 1.02 to 16.4; p=0.04). CONCLUSION: AHT EE was influenced by FBGL, IGT, smoking, a compromised family history, and baseline SBP 24 level. PMID- 29039819 TI - Single Domain Antibodies as New Biomarker Detectors. AB - Biomarkers are defined as indicators of biological processes, pathogenic processes, or pharmacological responses to a therapeutic intervention. Biomarkers have been widely used for early detection, prediction of response after treatment, and for monitoring the progression of diseases. Antibodies represent promising tools for recognition of biomarkers, and are widely deployed as analytical tools in clinical settings. For immunodiagnostics, antibodies are now exploited as binders for antigens of interest across a range of platforms. More recently, the discovery of antibody surface display and combinatorial chemistry techniques has allowed the exploration of new binders from a range of animals, for instance variable domains of new antigen receptors (VNAR) from shark and variable heavy chain domains (VHH) or nanobodies from camelids. These single domain antibodies (sdAbs) have some advantages over conventional murine immunoglobulin owing to the lack of a light chain, making them the smallest natural biomarker binders thus far identified. In this review, we will discuss several biomarkers used as a means to validate diseases progress. The potential functionality of modern singe domain antigen binders derived from phylogenetically early animals as new biomarker detectors for current diagnostic and research platforms development will be described. PMID- 29039825 TI - [Time course of changes in left ventricular twist in the presence of idiopathic left bundle branch block during exercise testing]. AB - AIM: To investigate left ventricular (LV) deformation properties, rotation, and twist during a bicycle ergometer exercise test among patients with idiopathic left bundle branch block (LBBB). SUBJECTS AND METHODS: Thirty-four patients with idiopathic LBBB having a mean QRS duration of 153+/-24 msec were examined. A control group included 18 apparently healthy volunteers. All the patients and apparently healthy individuals underwent echocardiography to determine LV hemodynamic parameters, deformity, rotation and twist at rest and after exercise test. RESULTS: As compared with the control, the idiopathic LBBB group at rest showed decreases in LV global longitudinal deformity (-15.6+/-4.7 and -18.4+/ 3.1%, respectively; p=0.037), apical rotation (4.59+/-4.2 degrees and 8.99+/ 3.68 degrees ; p=0.0067) and twist (9.08+/-4.59 degrees and 13.96+/-4.61 degrees ; p=0.0156), whereas there were no differences in LV ejection fraction and end systolic and end-diastolic volumes. After exercise testing there were no augmentations in basal and apical rotation and resulting DeltaTwist in the idiopathic LBBB group compared with the control (-2.05+/-8.35 and 4.66+/-8.49%; p=0.0463). The described changes in LV rotation and twist during exercise testing occurred in the presence of elevated pulmonary artery systolic pressure (PASP) in the LBBB group compared with the control (41.6+/-3.81 and 32.4+/-3.81 mm Hg, respectively; p=0.0201). CONCLUSION: Decreases in LV basal, apical and resulting twist may lead to elevated PASP in patients with idiopathic LBBB during exercise. PMID- 29039826 TI - [Endothelial immune activation and functional state in patients with hypertensive disease]. AB - AIM: To investigate the nitric oxide (NO) system, the activity of endothelial NO synthase (e-NOS) and inducible NO synthase (i-NOS) in relation to the levels of tumor necrosis factor-alpha (TNF- alpha) and its soluble receptor type I (sTNFRI) depending on the grade of hypertensive disease (HD). SUBJECTS AND METHODS: A total of 317 patients, including 284 patients aged 30 to 65 years (mean age 54.7+/-0.58 years) with Grades 1-3 HD who had not previously received regular antihypertensive therapy and 33 apparently healthy individuals, were examined at Kharkov City Clinical Hospital Eleven. Immune activation was judged by the serum levels of the proinflammatory cytokine TNF-alpha in all the examinees and y those of sTNFRI, which were measured by enzyme immunoassay. To study the endothelial functional state, the level of stable end metabolites of nitric oxide, that of S nitrosothiol and the activity of NO synthases were biochemically determined in 100 patients from this group. A control group consisted of 16 apparently healthy individuals. RESULTS: There were increases in the circulating levels of proinflammatory cytokines (TNF-alpha, sTNFRI), the content of S-nitrosothiol and the activity of i-NOS. At the same time, there were decreases in the activity of e-NOS and the level of end nitric oxide metabolites, such as nitrites and nitrates. CONCLUSION: In patients with HD, the end metabolites of nitric oxide decrease, which indirectly shows a reduction in its vasoactive part, and the stable NO metabolite S-nitrosothiol increases. This is associated with enhanced NO oxidation under conditions of oxidative stress and endothelial dysfunction. The higher amount of S-nitrosothiol in the examinees may be associated with increased i-NOS. The immunoinflammatory activation mediated by the proinflammatory cytokines, particularly by the enhanced activity of TNF-alpha and sTNFRI, has been proven to play a role. PMID- 29039827 TI - [Impact of hyperglycemia on the results of percutaneous coronary interventions in patients with acute ST-segment elevation myocardial infarction]. AB - AIM: To investigate the impact of hyperglycemia on the results of percutaneous coronary interventions (PCIs) in patients with acute ST-segment elevation myocardial infarction (ASTEMI). SUBJECTS AND METHODS: A study group consisted of 511 patients with hyperglycemia (blood glucose level (BGL) >=7.77 mmol/L) who underwent primary PCIs in the period from 2005 to 2015. A comparison group included 579 patients (BGL >=7.77 mmol/L). RESULTS: Assessment of the results of hospital interventions revealed that the mortality rates in patients with hyperglycemia proved to be higher than in those with normal BGL (6.5 and 2.6%, respectively; p=0.002). No differences were found in the rates of stent thrombosis (1 and 1.4%; p=0.541) and recurrent myocardial infarction (1.2 and 1.6%; p=0.591). Major adverse cardiac events, including death, recurrent infarction, and stent thrombosis, were more frequently determined in the hyperglycemic patients (7.6 and 4.3%; p=0.020). No-reflow phenomenon statistically significantly more frequently developed in the patients with hyperglycemia (6.8 and 3.3%; p=0.007). Binary logistic regression analysis showed that the presence of hyperglycemia served as an independent predictor of hospital mortality (odds ratio (OR) 2.6; 95% confidence interval (CI), 1.4 to 4.8; p=0.002). The application of a random probability sampling technique revealed that mortality remained statistically significantly higher in the hyperglycemic patients than in the normoglycemic individuals at admission (6.7 and 2.6%; r=0.011). CONCLUSION: PCIs in patients with ASTEMI and hyperglycemia are characterized by higher mortality rates and the risk of major adverse cardiac events. Admission hyperglycemia is an independent predictor of hospital mortality. PMID- 29039828 TI - [Clinical, laboratory and instrumental criteria for myocarditis, established in comparison with myocardial biopsy: A non-invasive diagnostic algorithm]. AB - AIM: To determine the diagnostic value of different clinical, laboratory, and instrumental signs in the diagnosis of myocarditis in patients with the picture of idiopathic arrhythmias, dilated cardiomyopathy (DCM) and in a comparison group when comparing with myocardial morphological examination. SUBJECTS AND METHODS: A study group included 100 patients (35 women; mean age, 44.7+/-12.5 years) with idiopathic arrhythmias (n=20) and DCM as a syndrome (n=100). All underwent myocardial morphological examination: endomyocardial biopsy (EMB) (n=71), intraoperative biopsy (n=13), study of the explanted heart (n=6), and autopsy (n=11). A comparison group consisted of 50 patients (25 women; mean age, 53.7+/ 11.7 years) with non-inflammatory diseases of the heart (left ventricular end diastolic dimension <6.0 cm, ejection fraction >50%) who underwent open-heart surgery (n=47), EMB (n=2), or autopsy (n=1). The investigators also performed polymerase chain reaction for cardiotropic viral DNA in the blood and myocardium, anticardiac antibody (ACA) identification, myocardial scintigraphy (n=26), coronary angiography (n=47), magnetic resonance imaging (MRI) (n=25), and multislice computed tomography of the heart (n=45). The diagnostic value of the extended spectrum of clinical, laboratory, and instrumental markers for myocarditis was estimated. RESULTS: Active/borderline myocarditis was diagnosed in 76% of the patients in the study group (75.5% in the arrhythmia subgroup and 76.3% in the DCM one) and in 24.3% of those in the comparison group (p<0.001). A viral genome in the myocardium was detected statistically significantly less frequently in the study group than that in the comparison one (40.2 and 65%, respectively; p<0.01): in 46.6% in the DCM subgroup and 15.8% in the arrhythmia one. An ACA set (sensitivity, specificity, and predictive value of positive and negative test results (45.7, 80, 80.4, and 45%, respectively)) was of the greatest diagnostic importance in identifying myocarditis; antibodies to cardiomyocyte nuclei in a titer of 1:160-1:320 had the highest specificity (93.3%). A specificity above 70% was seen for a full medical history triad (acute onset, an association between onset and infection, a symptom duration of less than one year), systemic immune manifestations, anginas in the history and elevated anti-O-streptolysin levels, systemic blood changes, Q waves/QS complexes on ECGs, local hypokinesias, pericardial effusion, atriomegalia (in arrhythmias), angina/ischemia with intact coronary arteries, and focal perfusion defects during myocardial scintigraphy. A sensitivity higher than 50% was observed for age over 40 years (differential diagnosis with genetic forms), acute onset, a correlation with infection, and delayed contrast agent accumulation, as evidenced by MSCT/MRI. CONCLUSION: When the incidence of myocarditis is similar in the arrhythmia and DCM subgroups, the viral genome detection rate is statistically significantly higher in DCM. Among the non-invasive markers, an ACA set (high sensitivity and specificity) is of the greatest diagnostic value in the diagnosis of myocarditis. The diagnostic rule based on counting the number of scores has been developed, which makes it possible to individually establish the risk of myocarditis in patients with idiopathic arrhythmias and DCM for both the determination of indications for biopsy and the lack of the possibility of its performance. The risk of myocarditis is high if there are 5-7 scores; that is close to 100% if there are 8 scores or more. PMID- 29039829 TI - [Factors for the development of persistent postoperative cognitive dysfunction in patients undergoing coronary artery bypass surgery under extracorporeal circulation]. AB - AIM: To analyze the factors contributing to the increased risk of persistent postoperative cognitive dysfunction (POCD) in patients undergoing coronary artery bypass surgery (CABS) under extracorporeal circulation (EC). SUBJECTS AND METHODS: 257 male patients aged 45 to 69 years with coronary heart disease (CHD) undergoing elective CABS under EC were examined. In addition to conventional clinical examination, all the patients underwent neuropsychological testing 3-5 days before, 7-14 days and 1 year after CABS. Persistent POCD was diagnosed if there was a 20% decline in cognitive domains at 1-year postoperatively versus preoperatively in 20% of the tests of an entire neuropsychological battery. Binary logistic regression analysis was applied to identify the factors supposedly increasing the risk of persistent POCD. RESULTS: It was found that high baseline cognitive status, early POCD after CABG under EC, low adherence to the prescribed treatment regimen, as well as progressive carotid artery (CA) stenosis could predict with a high (85%) probability that persistent POCD might develop at 1 year after surgery. CONCLUSION: The findings are suggestive of the multifactorial origin of persistent POCD, a significant role in the development of which is played by not only the preoperative cognitive status, but also by postoperative factors, such as the degree of adherence to the prescribed treatment regimen, early POCD, and progressive CA stenosis. PMID- 29039830 TI - [Role of AGTR1 A/C polymorphism in the development of atrial fibrillation]. AB - AIM: To investigate the AGTR1 A/C polymorphism associated with atrial fibrillation (AF) to form risk groups among patients who are prone to this disease. SUBJECTS AND METHODS: 90 probands with a confirmed diagnosis of AF and their 144 first-, second-, and third-degree relatives were examined. These families made up a study group. A control group was formed of 100 apparently healthy individuals without a history of cardiovascular diseases. Collection of medical history data and complaints, electrocardiography, electrocardiogram monitoring, as well as molecular genetic analysis, thyroid hormone tests were done in all the patients. RESULTS: No statistically significant data on the correlation between the AGTR1 A/C polymorphism and the development of AF were obtained in any patient subgroup. The obtained results can be due to the genetic features of a Siberian population, which are dependent on climatic conditions and geographical location, and confirm that AF is a heterogeneous disease. CONCLUSION: There were no statistically significant differences between the patients in the study group and those in the control group. Our findings suggest the heterogeneity of AF and confirm its multifactorial nature. PMID- 29039831 TI - [Comparative analysis of mortality from acute forms of ischemic heart disease during a 15-year period in the Russian Federation and the United States and the factors influencing its formation]. AB - AIM: To comparatively analyze the registered mortality rates from coronary heart disease (CHD) as a whole, as well as myocardial infarction (MI) and other acute forms of CHD during a 15-year period in the Russian Federation (RF, 2000-2014) and the United States of America (USA, 1999-2013). MATERIAL AND METHODS: Primary data were obtained from the database of the RF State Statistics Service, the World Health Organization Mortality Database, Human Mortality Database, then converted into standardized mortality rates and are presented in three age groups (30+, 30-49, and 50+ years old) in men and women separately. RESULTS: The analysis revealed a substantial excess of the registered mortality rates from CHD in the RF versus in the USA, as well as a lower incidence of MI and a higher incidence of other acute CHD forms registered as the cause of death. It also showed considerable differences in the structure of registered types of MI as the cause of mortality. CONCLUSION: The differences found in the mortality rates from CHD, MI, and other acute forms of CHD in the RF and the USA can be explained by objective (the higher prevalence of cardiovascular risk factors, the higher and earlier incidence of CHD in the RF, as well as differences in the organization of medical care and, as a result, actually higher mortality rates from CHD in Russia) and subjective (differences in approaches to statistically developing a population-based mortality rate, as well as defects in filling out the medical documents and coding the causes of death) factors. PMID- 29039832 TI - [Gender peculiarities of the risk of cardiovascular diseases in a population with symptoms of depression in Siberia (the WHO MONICA-psychosocial program)]. AB - AIM: To identify gender differences in the prevalence of depression in an open population of individuals aged 25-64 years and to evaluate its impact on the risk of cardiovascular diseases (CVD) in the population of Siberia. SUBJECTS AND METHODS: A random representative sample of a 25-64-year-old Novosibirsk population (657 men and 689 women) was surveyed within the framework of the third screening of the WHO MONICA-psychosocial program in 1994. The screening program included sociodemographic data registration and depression detection. Over a 16 year study period, women had myocardial infarction (MI) in 15 cases and stroke in 35 cases and men had these conditions in 30 and 22 cases, respectively. RESULTS: In the open 25-64-year-old population, depression was detected in 54.5% of the women and in 29% of the men; major depression was present in 11.8% of the women and 3.1% of the men (chi2=66.724; upsilon=2; p=0.0001). The risk of MI in the depressed patients was higher in the women (hazard ratio (HR)=2.5) than in the men (HR=2); when social parameters and age are included in the model, only a trend towards the impact of depression on the risk of MI persisted in the women (HR=3.4; p>0.05) and the men were observed to have a 1.6-fold higher risk for MI. The greatest risk of MI was seen in the men (HR=6.8) and women (HR=6.3) at the age of 55-64 years, as well as in the men who had incomplete secondary or primary education (HR=3.2); in blue-collar workers (HR=6.7), in the men who were single (HR=3.6), divorced (HR=4.5), or widowed (HR=6). The risk of stroke in the depressed patients during a 16-year study period was greater in the men (HR=5.8) than in the women (HR=4.6); after adjusting for age and social gradient, the risk of stroke in the women was higher in both the population and those who were aged 55-64 years (HR=8.5 and 6.9, respectively) than that in the men (HR=4.2 and 3.1, respectively). Among the men, the risk of stroke was higher in those who had primary education (HR=8.8), were widowed (HR=8.4) or divorced (HR=2.7). CONCLUSION: The women are much more susceptible to depression than are the men. The risk of MI with depression is higher in the women than in the men; at the same time, the risk of stroke is higher in the men than in the women. The picture is opposite in the older age group. The risk of CVD in the depressed men is exacerbated by a social gradient; these relationships have not been revealed in the women. PMID- 29039833 TI - [Genetic determinants of hypertension in two national cohorts of Mountain Shoria]. AB - AIM: To estimate the prevalence of the genotypes of the candidate genes ACE (I/D, rs4646994), ADRB1 (Ser49Gly, A/G, rs1801252) ADRA2B (I/D), MTHFR (C677T, Ala222Val, rs1801133), and eNOS (4b/4a) and their association with hypertension in two ethnic groups of Mountain Shoria. SUBJECTS AND METHODS: A clinical and epidemiological study was conducted in a population compactly living in the hard to-reach areas of Mountain Shoria (the settlements of Orton, Ust-Kabyrza, and Sheregesh of the Kemerovo Region). A continuous method was used to survey 1178 residents from the above settlements; the sample consisted of adults (aged 18 years and older), 565 people were genotyped. RESULTS: The prevalence of hypertension among the population of Mountain Shoria was 42.3%. The incidence of this disease among the Shorians was lower (39.9%) than that among the representatives of non-indigenous people (46.1%). The ethnically justified peculiarities of the association of ADRA2B and ACE I/D polymorphisms with hypertension were established. There were fewer patients with hypertension among ACE ID and ADRA2B DD genotype carriers in the cohort of the Shorians than in that of the non-indigenous population: 40.6% versus 58.6% and 38.3% versus 64%, respectively. Conversely, there were more hypertensive patients among the carriers of the homozygous ACE DD genotype in the native ethnic group (60%) than in the non-indigenous one (37.1%). CONCLUSION: Adverse prognostic ACE DD, ADRB1 AA, MTHFR TT, and eNOS 4a/4a genotypes were more frequently observed in the non indigenous ethnic groups; the ADRA2B DD genotype was more common in the native population. Hypertension was associated with the ACE DD, MTHFR CT, and ADRB1 AA genotypes in the native ethnic group and with the ACE ID genotype in the non indigenous population. PMID- 29039834 TI - [Renal function in patients receiving long-term warfarin therapy: A five-year prospective follow-up]. AB - AIM: To investigate the prognostic value of renal function and to estimate glomerular filtration rate (GFR) changes during a 5-year follow-up of patients receiving warfarin therapy. SUBJECTS AND METHODS: 200 patients (124 men, 76 women) mainly from a group at high risk for thromboembolic events (mean CHA2DS2 VASc scores, 3.25+/-1.89) were examined. The patients' mean age was 62.3+/-9.4 years; the follow-up period was 5 years. 74% of the patients received warfarin monotherapy (international normalized ratio (INR) 2.0 to 3.0); 36% took vitamin K antagonists in combination with one or two antiplatelet agents. The CKD-EPI formula was used to estimate GFR in all the patients at baseline and throughout the investigation once a year. RESULTS: GFR less than 70.9 ml/min/1.73 m2 was found to be a predictor of fatal and nonfatal thrombotic events. The decreased GFR was unassociated with the development of major and clinically relevant hemorrhagic complications within 5 years of warfarin therapy. The initial decline in renal function (GFR <70.9 ml/min/1.73 m2) was associated only with an increased rate of recurrent minor hemorrhagic complications. During 5-year warfarin therapy, there was a significant decrease in GFR from 97.1+/-24.85 to 91.9+/-28.9 ml/min/1.73 m2; at the same time, a rapidly progressive loss of renal function (GFR >=3 ml/min/1.73 m2/year) was recorded in 25.9% of the patients. Discriminant analysis showed that a baseline left ventricular ejection fraction of <40% was a predictor for the rapidly progressive loss of kidney function. CONCLUSION: Long-term warfarin therapy achieved the therapeutic range for INR is safe in the environment of the created patronage system. The initial decrease in GFR is a predictor of thrombotic events and is unassociated with an increased risk of bleeding. PMID- 29039835 TI - [Quality of life in patients with lower extremity atherosclerosis during standard treatment and therapeutic angiogenesis]. AB - AIM: To compare the impact of standard conservative treatment (SCT) and its combination with therapeutic angiogenesis for 3 to 5 years on quality of life in patients with Stage II (according to the classification developed by A.V. Pokrovsky-Fontaine) lower extremity atherosclerosis. SUBJECTS AND METHODS: 92 patients (69 men and 23 women) (mean age 65.2+/-7.7 years) were examined and divided into 2 groups of 46 people each. Only SCT (statins at an individually adjusted dose, antiaggregants, and graded exercise walking 3 to 5 km daily were used in Group 1; while Group 2 received SCT in combination with double injection of a plasmid-based VEGF165 gene drug (1.2 mg) into the ischemic limb muscles. The Russian version of the standard SF-36 questionnaire was applied; pain-free walking distances were measured before treatment and then every year; limb preservation and survival rates were determined in the patients. RESULTS: It was determined that standard treatment did not significantly affect patients' quality of life throughout the follow-up period. Addition of gene therapy leads to a significant improvement in both physical (p=0.00001) and psychological (p=0.00002) health components just in the first year of the follow-up. This is achieved through a significant (500%) increase in the average leg pain-free walking distance; p=0.007). CONCLUSION: The obtained result is consistently high throughout the subsequent period. There was no statistically significant difference in survival rates between the groups; limb preservation remained comparable. PMID- 29039836 TI - [Chronic thromboembolic pulmonary hypertension developed in a female patient with lupus erythematosus and secondary antiphospholipid syndrome]. AB - Chronic thromboembolic pulmonary hypertension (CTEPH) is one of the potentially curable forms of pulmonary hypertension, in which pulmonary thromboendarterectomy is the gold standard treatment. However, over the last decade, great attention has been given to a combined therapeutic approach including both drug therapy and surgical treatment and the application of endovascular technologies. This clinical case demonstrates the diagnostic difficulties of CTEPH and the opportunities of a comprehensive approach to therapy for the disease with mandatory assessment of preoperative surgical and medical treatment in order to improve the patient status and to prepare for surgery. PMID- 29039837 TI - [A patient with severe idiopathic pulmonary arterial hypertension: Is there a way out?] AB - The paper considers a clinical example of current therapy for idiopathic pulmonary arterial hypertension in a female patient with its clinical deterioration. It shows the tactics of switching from one drug (bosentan) to others (macitentan) within in the same pathogenetic therapy group (endothelin receptor antagonists). The latest pulmonary hypertension classification (Nice, 2013) is presented. The current strategies of pathogenetic therapy for pulmonary hypertension are discussed. PMID- 29039838 TI - [Atrial septal aneurysm: Evolution of diagnostic and clinical judgements]. AB - The article discusses anatomical and clinical judgements on atrial septal aneurysm (ASA) as a primary cardiac structural abnormality. It presents current approaches to the classification of ASA and its echocardiographic diagnosis. Special attention is focused on the clinical significance of ASA as an isolated anomaly and concurrent with other structural abnormalities of the heart, especially from the standpoint of a risk of cardioembolic stroke. PMID- 29039839 TI - [The role of integrated assessment of the indicators of external respiration function in cardiac surgical patients]. AB - This literature review dedicated to the importance of an integrated assessment of external respiratory function in cardiovascular diseases (CVDs), including an analysis of up-to-date techniques, such as spirometry, body plethysmography, examination of the diffusing capacity of the lung, determination of O2 consumption with evaluation of the effectiveness of pulmonary ventilation. It considers the pathogenetic components of impairments in pulmonary ventilation and gas exchange, which develop in different CVDs, as well as during and after cardiac surgery. The authors analyze the results of international investigations and their own experience, which emphasize the prognostic value of lung function tests and suggest that there is a need for a comprehensive functional assessment of the respiratory system in cardiac surgical patients for their effective preoperative preparation, assessment and reduction of operational risks, and improvement of the prognosis of surgical treatment. PMID- 29039840 TI - [Use of loop diuretics in heart failure: Current aspects]. AB - Loop diuretics take the lead in the treatment of patients with symptomatic heart failure. Torasemide is the most effective and safe loop diuretic with the optimal pharmacokinetic profile, the additional properties associated with simultaneous blockade of the renin-angiotensin-aldosterone system and with the antiadrenergic effects of the drug, its positive impact on myocardial fibrosis and minimal severe potential negative effects. Sustained-release torasemide provides a more comfortable removal of excess liquid and does not deteriorate quality of life. PMID- 29039841 TI - [Non-vitamin K antagonist oral anticoagulants for heart diseases]. AB - Non-vitamin K antagonist oral anticoagulants (NOASs) are highly effective drugs that prevent venous thrombosis and stroke in atrial fibrillation. Their use has difficulties that are associated with the need for laboratory control and with the influence of many factors on the activity of these medications. The emerged direct oral anticoagulants have some advantages over NOACs. Nevertheless, there are a number of pathological conditions, in which NOACs remain first-line drugs. These include prosthetic mechanical heart valves, a glomerular filtration rate less than 60 mL/min/1.73 m2, and left atrial thrombus. PMID- 29039842 TI - A virtual climate library of surface temperature over North America for 1979 2015. AB - The most comprehensive continuous-coverage modern climatic data sets, known as reanalyses, come from combining state-of-the-art numerical weather prediction (NWP) models with diverse available observations. These reanalysis products estimate the path of climate evolution that actually happened, and their use in a probabilistic context-for example, to document trends in extreme events in response to climate change-is, therefore, limited. Free runs of NWP models without data assimilation can in principle be used for the latter purpose, but such simulations are computationally expensive and are prone to systematic biases. Here we produce a high-resolution, 100-member ensemble simulation of surface atmospheric temperature over North America for the 1979-2015 period using a comprehensive spatially extended non-stationary statistical model derived from the data based on the North American Regional Reanalysis. The surrogate climate realizations generated by this model are independent from, yet nearly statistically congruent with reality. This data set provides unique opportunities for the analysis of weather-related risk, with applications in agriculture, energy development, and protection of human life. PMID- 29039843 TI - Acetoclastic Methanosaeta are dominant methanogens in organic-rich Antarctic marine sediments. AB - Despite accounting for the majority of sedimentary methane, the physiology and relative abundance of subsurface methanogens remain poorly understood. We combined intact polar lipid and metagenome techniques to better constrain the presence and functions of methanogens within the highly reducing, organic-rich sediments of Antarctica's Adelie Basin. The assembly of metagenomic sequence data identified phylogenic and functional marker genes of methanogens and generated the first Methanosaeta sp. genome from a deep subsurface sedimentary environment. Based on structural and isotopic measurements, glycerol dialkyl glycerol tetraethers with diglycosyl phosphatidylglycerol head groups were classified as biomarkers for active methanogens. The stable carbon isotope (delta13C) values of these biomarkers and the Methanosaeta partial genome suggest that these organisms are acetoclastic methanogens and represent a relatively small (0.2%) but active population. Metagenomic and lipid analyses suggest that Thaumarchaeota and heterotrophic bacteria co-exist with Methanosaeta and together contribute to increasing concentrations and delta13C values of dissolved inorganic carbon with depth. This study presents the first functional insights of deep subsurface Methanosaeta organisms and highlights their role in methane production and overall carbon cycling within sedimentary environments. PMID- 29039844 TI - Soil microbial diversity drives the priming effect along climate gradients: a case study in Madagascar. AB - The priming effect in soil is proposed to be generated by two distinct mechanisms: 'stoichiometric decomposition' and/or 'nutrient mining' theories. Each mechanism has its own dynamics, involves its own microbial actors, and targets different soil organic matter (SOM) pools. The present study aims to evaluate how climatic parameters drive the intensity of each priming effect generation mechanism via the modification of soil microbial and physicochemical properties. Soils were sampled in the center of Madagascar, along climatic gradients designed to distinguish temperature from rainfall effects. Abiotic and biotic soil descriptors were characterized including bacterial and fungal phylogenetic composition. Potential organic matter mineralization and PE were assessed 7 and 42 days after the beginning of incubation with 13C-enriched wheat straw. Both priming mechanisms were mainly driven by the mean annual temperature but in opposite directions. The priming effect generated by stoichiometric decomposition was fostered under colder climates, because of soil enrichment in less developed organic matter, as well as in fast-growing populations. Conversely, the priming effect generated by nutrient mining was enhanced under warmer climates, probably because of the lack of competition between slow-growing populations mining SOM and fast-growing populations for the energy-rich residue entering the soil. Our study leads to hypotheses about the consequences of climate change on both PE generation mechanisms and associated consequences on soil carbon sequestration. PMID- 29039845 TI - RNA sequencing analysis of activated macrophages treated with the anti-HIV ABX464 in intestinal inflammation. AB - RNA-Seq enables the generation of extensive transcriptome information providing the capability to characterize transcripts (including alternative isoforms and polymorphism), to quantify expression and to identify differential regulation in a single experiment. To reveal the capacity of new anti-HIV ABX464 candidate in modulating the expression of genes, datasets were generated and validated using RNA-seq approach. This comprehensive dataset will be useful to deepen the comprehensive understanding of the progression of human immunodeficiency virus (HIV) associated with mucosal damage in the gastrointestinal (GI) tract and subsequent inflammation, providing an opportunity to generate new therapies, diagnoses, and preventive strategies. PMID- 29039848 TI - High-throughput DFT calculations of formation energy, stability and oxygen vacancy formation energy of ABO3 perovskites. AB - ABO3 perovskites are oxide materials that are used for a variety of applications such as solid oxide fuel cells, piezo-, ferro-electricity and water splitting. Due to their remarkable stability with respect to cation substitution, new compounds for such applications potentially await discovery. In this work, we present an exhaustive dataset of formation energies of 5,329 cubic and distorted perovskites that were calculated using first-principles density functional theory. In addition to formation energies, several additional properties such as oxidation states, band gap, oxygen vacancy formation energy, and thermodynamic stability with respect to all phases in the Open Quantum Materials Database are also made publicly available. This large dataset for this ubiquitous crystal structure type contains 395 perovskites that are predicted to be thermodynamically stable, of which many have not yet been experimentally reported, and therefore represent theoretical predictions. The dataset thus opens avenues for future use, including materials discovery in many research-active areas. PMID- 29039846 TI - Gut bacterial communities of diarrheic patients with indications of Clostridioides difficile infection. AB - We present bacterial 16S rRNA gene datasets derived from stool samples of 44 patients with diarrhea indicative of a Clostridioides difficile infection. For 20 of these patients, C. difficile infection was confirmed by clinical evidence. Stool samples from patients originating from Germany, Ghana, and Indonesia were taken and subjected to DNA isolation. DNA isolations of stool samples from 35 asymptomatic control individuals were performed. The bacterial community structure was assessed by 16S rRNA gene analysis (V3-V4 region). Metadata from patients and control individuals include gender, age, country, presence of diarrhea, concomitant diseases, and results of microbiological tests to diagnose C. difficile presence. We provide initial data analysis and a dataset overview. After processing of paired-end sequencing data, reads were merged, quality filtered, primer sequences removed, reads truncated to 400 bp and dereplicated. Singletons were removed and sequences were sorted by cluster size, clustered at 97% sequence similarity and chimeric sequences were discarded. Taxonomy to each operational taxonomic unit was assigned by BLASTn searches against Silva database 123.1 and a table was constructed. PMID- 29039849 TI - Targeted metabolomics and medication classification data from participants in the ADNI1 cohort. AB - Alzheimer's disease (AD) is the most common neurodegenerative disease presenting major health and economic challenges that continue to grow. Mechanisms of disease are poorly understood but significant data point to metabolic defects that might contribute to disease pathogenesis. The Alzheimer Disease Metabolomics Consortium (ADMC) in partnership with Alzheimer Disease Neuroimaging Initiative (ADNI) is creating a comprehensive biochemical database for AD. Using targeted and non- targeted metabolomics and lipidomics platforms we are mapping metabolic pathway and network failures across the trajectory of disease. In this report we present quantitative metabolomics data generated on serum from 199 control, 356 mild cognitive impairment and 175 AD subjects enrolled in ADNI1 using AbsoluteIDQ-p180 platform, along with the pipeline for data preprocessing and medication classification for confound correction. The dataset presented here is the first of eight metabolomics datasets being generated for broad biochemical investigation of the AD metabolome. We expect that these collective metabolomics datasets will provide valuable resources for researchers to identify novel molecular mechanisms contributing to AD pathogenesis and disease phenotypes. PMID- 29039852 TI - Th(iv) and Ce(iv) napthylsalophen sandwich complexes: characterization of unusual thorium fluorescence in solution and solid-state. AB - The synthesis, characterization, and electronic spectroscopy of two ML2 sandwich complexes, where M = Ce(iv) or Th(iv) and L = napthylsalophen2- are described. The ThL2 complex, unlike the isovalent CeL2, complex possesses unusual fluorescence properties in both solution and solid-state. These observations are explained with TD-DFT. PMID- 29039851 TI - Quantifying person-level brain network functioning to facilitate clinical translation. AB - Although advances in neuroimaging have yielded insights into the intrinsic organization of human brain networks and their relevance to psychiatric and neurological disorders, there has been no translation of these insights into clinical practice. One necessary step toward clinical translation is identifying a summary metric of network function that is reproducible, reliable, and has known normative data, analogous to normed neuropsychological tests. Our aim was therefore to establish the proof of principle for such a metric, focusing on the default mode network (DMN). We compared three candidate summary metrics: global clustering coefficient, characteristic path length, and average connectivity. Across three samples totaling 322 healthy, mostly Caucasian adults, average connectivity performed best, with good internal consistency (Cronbach's alpha=0.69-0.70) and adequate eight-week test-retest reliability (intra-class coefficient=0.62 in a subsample N=65). We therefore present normative data for average connectivity of the DMN and its sub-networks. These proof of principle results are an important first step for the translation of neuroimaging to clinical practice. Ultimately, a normed summary metric will allow a single patient's DMN function to be quantified and interpreted relative to normative peers. PMID- 29039853 TI - Construction of Sierpinski triangles with the coexistence of C60 or MnPc molecules. AB - Sierpinski triangles up to the fourth order were successfully prepared using 4,4''-dicyano-1,1':3',1''-terphenyl molecules and Fe or Co atoms with the coexistence of the third molecules (C60 or MnPc) on a reconstructed Au(111) substrate. Sierpinski triangles could be disturbed and restored by C60 molecules after annealing at 400 and 360 K, respectively. The dispersed MnPc molecules did not affect the formation of Sierpinski triangles when annealed at high temperatures. The selective adsorption of MnPc molecules at certain holes of Sierpinski triangles was observed. PMID- 29039850 TI - Systematic Review: Disease Activity Indices in Eosinophilic Esophagitis. AB - OBJECTIVES: There is no clear consensus regarding the most appropriate measure(s) of eosinophilic esophagitis (EoE) disease activity. We aimed to identify all scoring indices used for the measurement of disease activity in EoE, appraise their operating properties, and discuss their value as outcome measures. METHODS: MEDLINE, EMBASE, and CENTRAL (The Cochrane library) were searched from inception to 11 May 2016. Randomized controlled trials (RCTs), cohort, case-control, and cross-sectional studies that reported outcomes to measure EoE disease activity or response to treatment were eligible. Operating properties of histologic, endoscopic, and patient reported/symptomatic and health-related quality of life measures were critically appraised according to guidelines proposed by the United States Food and Drug Administration. RESULTS: Of 4,373 citations, 130 studies were eligible, of which 20 were RCTs. Although no index met all evaluative criteria, we found that: (1) the EoE histologic scoring system (EoEHSS) is the most valid histologic measure; (2) the Endoscopic Reference Score (EREFS) is the most reliable and responsive endoscopy measure; and (3) the Eosinophilic Esophagitis Activity Index (EEsAI) or the Dysphagia Symptoms Questionnaire (DSQ) had superior construct validity and responsiveness in adults. The Pediatric Quality of Life Inventory EoE was the most valid pediatric symptomatic measure. CONCLUSIONS: Current evidence supports the use of the EoEHSS and EREFS as measures of histologic and endoscopic EoE disease activity, respectively, and the EEsAI, DSQ, or Pediatric Quality of Life Inventory EoE as measures of adult and pediatric symptoms. Additional research is needed to optimize endpoint configuration to facilitate development of new therapies. PMID- 29039854 TI - Sugar hydrazide imides: a new family of glycosidase inhibitors. AB - The preparation of a novel type of iminosugar including a hydrazide imide moiety is described. The sugar hydrazide imides (3S,4S,5R,6R)-1-amino-3,4,5-trihydroxy-6 (hydroxymethyl)-2-iminopiperidine acetate and (3S,4S,5R,6R)-3,4,5-trihydroxy-6 (hydroxymethyl)-2-imino-1-(methylamino)piperidine acetate presented here behave as inhibitors of alpha/beta-glucosidases in the low micromolar concentration range. The former inhibitor displays a pH-dependent inhibition of beta glucosidase. The N-methylated counterpart behaves as an anomer-selective competitive micromolar inhibitor of alpha-glucosidase. PMID- 29039855 TI - Temperature dependence of the hydrogen bond network in trimethylamine N-oxide and guanidine hydrochloride-water solutions. AB - We present an X-ray Compton scattering study on aqueous trimethylamine N-oxide (TMAO) and guanidine hydrochloride solutions (GdnHCl) as a function of temperature. Independent from the concentration of the solvent, Compton profiles almost resemble results for liquid water as a function of temperature. However, the number of hydrogen bonds per water molecule extracted from the Compton profiles suggests a decrease of hydrogen bonds with rising temperature for all studied samples, and the differences between water and the solutions are weak. Nevertheless, the data indicate a reduced bond weakening with rising TMAO concentration up to 5 M of 7.2% compared to 8% for pure water. In contrast, the addition of GdnHCl appears to behave differently for concentrations up to 3.1 M with a weaker impact on the temperature response of the hydrogen bond structure. PMID- 29039856 TI - Visible light-driven photogeneration of hydrogen sulfide. AB - The combined use of a singlet oxygen photosensitizer and 1,3 diarylisobenzothiophene enables efficient generation of hydrogen sulfide under visible light illumination. PMID- 29039857 TI - Acid/base-controllable fluorescent molecular switches based on cryptands and basic N-heteroaromatics. AB - Two kinds of fluorescent BMP32C10-based cryptands 1 and 2 have been developed. Cryptand 1 contains a binaphthol group, while cryptand 2 bears a coumarin group in their third arms. Based on this design, novel self-assemblies constructed from cryptand 1 or 2 and basic N-heteroaromatic guests 3-6 were successfully obtained. Moreover, the threading/dethreading processes of the host-guest complexes could be well switched by the alternate addition of acid/base, and accompanied by concurrent changes in fluorescence. PMID- 29039858 TI - A pyrene based fluorescent turn-on chemosensor: aggregation-induced emission enhancement and application towards Fe3+ and Fe2+ recognition. AB - A pyrene-based probe bearing benzothiazole ionophore (Py-BTZ) was synthesised as a "turn-on" fluorescent chemosensor for the detection of Fe3+ and Fe2+ ions in CH3CN : H2O (1 : 1, v/v) solvent mixes. The chemosensor showed optical as well as colorimetric changes towards Fe3+ and Fe2+ ions along with a remarkable enhancement in fluorescence emission. The detection limit of Py-BTZ towards Fe3+ and Fe2+ ions was found to be 2.61 MUM and 2.06 MUM, respectively. The binding of Py-BTZ with Fe3+ and Fe2+ was determined by using FT-IR experiments. Interestingly, Py-BTZ shows aggregation induced emission enhancement (AIEE) properties in polar solvent mixes such as CH3CN : H2O (1 : 1, v/v). PMID- 29039859 TI - Atomically thin non-layered nanomaterials for energy storage and conversion. AB - After the discovery of graphene, two-dimensional nanomaterials with atomic thickness and large lateral size have attracted tremendous research interest due to their high specific surface areas, exotic electronic structures, and fascinating physical and chemical properties. Even though recent studies are mainly focused on atomically thin nanomaterials with layered structures due to their easy preparation and characterization, the investigation of non-layered nanomaterials is also proceeding as new types of ultrathin nanostructures are constantly being created, such as metals, metal oxides, metal chalcogenides, some transition metal dichalcogenides, and perovskites. Here in this review, we comprehensively summarize the preparation methods for atomically thin non-layered nanomaterials, study their exotic electronic structures, introduce electronic structure manipulation strategies, and provide an overview of their applications in energy storage and conversion, with particular emphasis on lithium-ion batteries, sodium-ion batteries, catalysis of hydrogen evolution, oxygen evolution, CO2 reduction, CO oxidation reactions, etc. The central theme of this review is to provide correlation among the materials synthesis, structural and electronic properties, and their major applications. Finally, based on current research progress, we propose future directions yet to be explored for enhanced properties and novel functionalities in practical applications. PMID- 29039860 TI - Generation and transformation of a hemi-iminal-based metal-organic Fe(ii) structure obtained via subcomponent self-assembly in water. AB - We report the synthesis and characterization of a coordination architecture with a Fe(ii) center obtained by subcomponent self-assembly in water. The complex is based on very rare hemi-iminal ligands spontaneously generated from commercially available materials. The complex can be further transformed into another species by oxidation reaction of both the metal center and organic ligand. PMID- 29039861 TI - Design of encapsulated hosts and guests for highly efficient blue and green thermally activated delayed fluorescence OLEDs based on a solution-process. AB - The molecular aggregation and exciton-polaron interaction of the host-guest system were successfully restricted by efficient molecular encapsulation. The solution-processed blue and green TADF OLEDs have been realized with external quantum efficiencies above 23% by employing the encapsulated TADF host and guest as emission layers. PMID- 29039862 TI - A pair of 3D enantiotopic zinc(ii) complexes based on two asymmetric achiral ligands. AB - Enantiomorphism and enantioselectivity are critical in biology and many other applications. Herein, we report two 3D chiral MOFs {[Zn6(MIDPPA)3(1,2,4 btc)3(NO2)3(H2O)3](H2O)7}n (1L and 1R) based on achiral ligands with high enantiomeric excess and a novel topological type. The internal mechanism of spontaneous chiral symmetry breaking, during the crystallization of chiral MOFs based on achiral ligands, is elucidated for the first time from both structural and theoretical aspects. Hydrogen bonds are found to play a key role in the spontaneous symmetry breaking of chiral MOFs. Also, DFT calculations support our findings from the aspects of total energies and HOMO-LUMO energy gaps. Both 1L and 1R, exhibiting green fluorescence, present a non-centrosymmetric polar packing arrangement, resulting in good ferroelectric behaviors and second-order nonlinear optical effects. PMID- 29039863 TI - Synthesis of carbazole-based BODIPY dimers showing red fluorescence in the solid state. AB - Carbazole-based BODIPY dimers 2a-g were synthesized via direct arylation. They showed red-shifted solid-state fluorescence spectra as compared with the corresponding monomer. In addition, unsymmetrical dimers 2d, 2f, and 2g with two different substituents showed red fluorescence with improved quantum yields in the solid state. PMID- 29039864 TI - Effects of pulsed laser irradiation on gold-coated silver nanoplates and their antibacterial activity. AB - Gold-coated silver nanoplates, when subjected to pulsed laser irradiation, changed their shape from triangular to spherical, accompanied by a shift of their extinction spectra. The simple single crystal structure of the silver nanoplates changed to multiple small crystal domains. The ratio of silver to gold of the particles also changed from 22 : 1 to 4.5 : 1, enabling more silver to be released. As a result, the antibacterial activity of the gold-coated silver nanoplates was significantly increased after pulsed laser irradiation. PMID- 29039865 TI - Photophysical properties of three coordinated copper(i) complexes bearing 1,10 phenanthroline and a monodentate phosphine ligand. AB - We report the synthesis and photophysical properties of Cu(i) complexes with 1,10 phenanthroline (phen) and monodentate phosphine ligands. Single crystal X-ray structural analysis revealed that these have three-coordinated trigonal planar geometries. We also found that one of them, [Cu(phen)(Johnphos)]BF4 (Johnphos = 2 (di-tert-butylphosphino)biphenyl), is considerably emissive both in solution and solid states. The emission maximum wavelength of the emission of the complex is 580 nm, and the lifetime of the emission is 2 MUs in solution. Moreover, we have systematically investigated the photophysical and redox properties of four coordinate complexes [Cu(NN)(P)2]+ in addition to three-coordinate complexes [Cu(NN)(P)]+. Charge transfer transitions play a key role in the photophysics of these complexes. PMID- 29039866 TI - N-Acylsuccinimides: twist-controlled, acyl-transfer reagents in Suzuki-Miyaura cross-coupling by N-C amide bond activation. AB - The palladium-catalyzed Suzuki-Miyaura cross-coupling of N-acylsuccinimides as versatile acyl-transfer reagents via selective amide N-C bond cleavage is reported. The method is user-friendly since it employs commercially-available, air-stable reagents and catalysts. The cross-coupling is enabled by half-twist of the amide bond in N-acylsuccinimides. These highly effective, crystalline acyl transfer reagents present major advantages over perpendicularly twisted N acylglutarimides, including low price of the succinimide activating ring, selective metal insertion under redox neutral conditions and high stability of the amide bond towards reaction conditions. Mechanistic studies indicate that oxidative addition is the rate limiting step in this widely applicable protocol. PMID- 29039867 TI - Water-soluble, neutral 3,5-diformyl-BODIPY with extended fluorescence lifetime in a self-healable chitosan hydrogel. AB - 3,5-Diformyl-4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (3,5-diformyl-BODIPY) can be used as an efficient biofunctional cross-linker to generate a new class of chitosan-based hydrogels with fluorescence resonance energy transfer (FRET) dynamics and good solubility in water. The hydrogel was fully characterized by FT IR, UV-vis, fluorescence, FE-SEM, AFM, rheology and picosecond time-resolved spectroscopic techniques. The self-healing ability was demonstrated by rheological recovery and macroscopic and microscopic observations. The fluorescence lifetime was found to increase in aqueous solution of the BODIPY chitosan hydrogel compared to the 3,5-diformyl-BODIPY monomer. Calculations based on experimental results such as red-shift and decreased intensity of the emission spectrum of highly dye-concentrated hydrogel in comparison to dilute hydrogels, together with changes in the fluorescence lifetime of the hydrogel at different concentration of dyes, suggest that the BDP-CS hydrogels fluorescence dynamics obey the Forster resonance energy transfer (FRET). Improvements in mechanical and photochemical properties and the acceptable values of BODIPY fluorescence lifetime in the hydrogel matrix indicate the utility of the newly synthesized hydrogels for biomedical applications. PMID- 29039868 TI - Inkjet-printed barcodes for a rapid and multiplexed paper-based assay compatible with mobile devices. AB - This study reports a simple, rapid, low-cost, robust, and multiplexed barcoded paper-based assay (BPA) compatible with mobile devices. An inkjet printer and an XYZ dispensing platform were used to realize mass-manufacturing of barcoded paper based analytical devices (BPADs) with high precision and efficiency. We designed a new group of barcodes and developed an application (APP) for the reading of the new code. The new barcodes possess a 16 times higher coding capacity than the standard Codabar code in our experiment on drug residue detection. The BPA system allows applications in the assays of blood-transmitted infections, drug residues in milk and multiplex nucleic acids. The whole detection process and the readout of the results can be completed within 10 minutes. The limit of detection for enrofloxacin (ENR) (8 ng mL-1) satisfies the requirements of drug residue monitoring. Its high rapidity, simplicity, efficiency and selectivity make the BPA system extremely suitable to be applied in rapid and on-site detection. PMID- 29039870 TI - It Is Time to Change the Status Quo: Limiting Orthopedic Surgery Residency Applications. PMID- 29039869 TI - Electrodiagnostic Testing in the Diagnosis and Management of Carpal Tunnel Syndrome. PMID- 29039871 TI - Superior Capsular Reconstruction. AB - Superior capsular reconstruction (SCR) of the shoulder has recently gained popularity as an option for joint-preserving shoulder surgery for patients with an irreparable rotator cuff tear. In the absence of glenohumeral arthritis, rotator cuff tear irreparability should only be diagnosed for most patients after a careful diagnostic arthroscopy. Superior capsular reconstruction adds biological, passive, superior constraint to the glenohumeral joint, thereby optimizing the rotator cuff force couples and improving joint kinematics. At short-term follow-up, SCR has been shown to be effective for pain relief and restoration of active shoulder motion, even in the worst cases of shoulder dysfunction (true shoulder pseudoparalysis). The rapid early adoption and expansion of SCR is justified by its excellent anatomical, biomechanical, and short-term clinical results. The techniques for arthroscopic SCR using dermal allograft continue to improve; however, the operation remains technically demanding. Patients with risk factors for irreparability and who might benefit from reconstruction of the superior capsule should be counseled about the operation as an additional, joint-preserving procedure that can be done in conjunction with arthroscopic, partial rotator cuff repair. [Orthopedics. 2017; 40(5):271-280.]. PMID- 29039874 TI - ? PMID- 29039873 TI - ? AB - Age- and gender-specific reference intervals are pivotal to ensure appropriate interpretation of plasma alkaline phosphatase activities in the lower range Hypophosphatasia (HPP) is an inborn error of metabolism caused by loss-of function mutations of the ALPL gene that mainly express alkaline phosphatase (ALP) in bone and liver. The clinical expression of HPP is highly variable and is classified into six different forms mainly affecting bone and tooth mineralization. The prognosis for each of these HPP forms depends upon the severity of the skeletal disease which reflects the age at presentation. The biochemical hallmark of HPP is low plasma ALP activity (hypophosphatasemia); however, HPP is often misdiagnosed because of low awareness and sometimes absence of age- and gender-specific ALP reference intervals. Children and adolescents have higher ALP levels in comparison with adults. Reliable reference intervals are pivotal for any clinical laboratory test. Harmonized age- and gender-specific plasma ALP reference intervals ought to be used to ensure appropriate interpretation of plasma ALP activities in the lower range. PMID- 29039875 TI - ? PMID- 29039876 TI - ? PMID- 29039877 TI - ? PMID- 29039878 TI - ? PMID- 29039879 TI - ? PMID- 29039880 TI - ? PMID- 29039881 TI - ? PMID- 29039882 TI - ? PMID- 29039884 TI - Erratum: Wangerin et al. (2015) PMID- 29039883 TI - Volume-targeted versus pressure-limited ventilation in neonates. AB - BACKGROUND: Damage caused by lung overdistension (volutrauma) has been implicated in the development of bronchopulmonary dysplasia (BPD). Modern neonatal ventilation modes can target a set tidal volume as an alternative to traditional pressure-limited ventilation (PLV) using a fixed inflation pressure. Volume targeted ventilation (VTV) aims to produce a more stable tidal volume in order to reduce lung damage and stabilise the partial pressure of carbon dioxide (pCO2). OBJECTIVES: To determine whether VTV compared with PLV leads to reduced rates of death and death or BPD in newborn infants and to determine whether use of VTV affected outcomes including air leak, cranial ultrasound findings and neurodevelopment. SEARCH METHODS: We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL 2016, Issue 12), MEDLINE via PubMed (1966 to 13 January 2017), Embase (1980 to 13 January 2017) and CINAHL (1982 to 13 January 2017). We also searched clinical trials databases, conference proceedings and the reference lists of retrieved articles for randomised controlled trials and quasi-randomised trials. We contacted the principal investigators of studies to obtain supplementary information. SELECTION CRITERIA: Randomised and quasi-randomised trials comparing VTV versus PLV in infants of less than 44 weeks' postmenstrual age and reporting clinically relevant outcomes. DATA COLLECTION AND ANALYSIS: We assessed risk of bias for each trial using Cochrane methodology. We evaluated quality of evidence for each outcome using GRADE criteria. We tabulated mortality, rates of BPD, short-term clinical outcomes and long-term developmental outcomes. STATISTICS: for categorical outcomes, we calculated typical estimates for risk ratios (RR), risk differences (RD) and number needed to treat for an additional beneficial outcome (NNTB). For continuous variables, we calculated typical estimates for mean differences (MD). We used 95% confidence intervals (CI) and assumed a fixed effect model for meta-analysis. MAIN RESULTS: Twenty randomised trials met our inclusion criteria; 16 parallel trials (977 infants) and four cross-over trials (88 infants). No studies were blinded and the quality of evidence for outcomes assessed varied from moderate to low.We found no difference in the primary outcome, death before hospital discharge, between VTV modes versus PLV modes (typical RR 0.75, 95% CI 0.53 to 1.07; low quality evidence). However, there was moderate quality evidence that the use of VTV modes resulted in a reduction in the primary outcome, death or BPD at 36 weeks' gestation (typical RR 0.73, 95% CI 0.59 to 0.89; typical NNTB 8, 95% CI 5 to 20) and the following secondary outcomes: rates of pneumothorax (typical RR 0.52, 95% CI 0.31 to 0.87; typical NNTB 20, 95% CI 11 to 100), mean days of mechanical ventilation (MD -1.35 days, 95% CI -1.83 to -0.86), rates of hypocarbia (typical RR 0.49, 95% CI 0.33 to 0.72; typical NNTB 3, 95% CI 2 to 5), rates of grade 3 or 4 intraventricular haemorrhage (typical RR 0.53, 95% CI 0.37 to 0.77; typical NNTB 11, 95% CI 7 to 25) and the combined outcome of periventricular leukomalacia with or without grade 3 or 4 intraventricular haemorrhage (typical RR 0.47, 95% CI 0.27 to 0.80; typical NNTB 11, 95% CI 7 to 33). VTV modes were not associated with any increased adverse outcomes. AUTHORS' CONCLUSIONS: Infants ventilated using VTV modes had reduced rates of death or BPD, pneumothoraces, hypocarbia, severe cranial ultrasound pathologies and duration of ventilation compared with infants ventilated using PLV modes. Further studies are needed to identify whether VTV modes improve neurodevelopmental outcomes and to compare and refine VTV strategies. PMID- 29039885 TI - Attitudes and Practices Among Medical Providers Regarding Oral Health Assessments in Young Children. AB - Research indicates that while most nondental medical providersbelieve pediatric oral assessments are important, most lack education and training.This study investigated a metropolitan area in Southern California medicalproviders' knowledge, attitudes and practices on oral health assessments. Resultsindicate a high incidence of incorrect dental knowledge. Common barriers werelack of knowledge and time. Early intervention and timely dental referrals amongnondental medical providers can play a significant role in promoting oral health. PMID- 29039886 TI - Corrigendum to "Transdermal alcohol concentration data collected during a contingency management program to reduce at-risk drinking" PMID- 29039887 TI - Taking Inventory to Safeguard Your Practice. PMID- 29039888 TI - Which is best method for instillation of topical therapy to the upper urinary tract? An in vivo porcine study to evaluate three delivery methods. AB - PURPOSE: To compare the staining intensity of the upper urinary tract (UUT) urothelium among three UUT delivery methods in an in vivo porcine model. MATERIALS AND METHODS: A fluorescent dye solution (indigo carmine) was delivered to the UUT via three different methods: antegrade perfusion, vesico-ureteral reflux via indwelling ureteric stent and retrograde perfusion via a 5F open-ended ureteral catheter. Twelve renal units were tested with 4 in each method. After a 2-hour delivery time, the renal-ureter units were harvested en bloc. Time from harvesting to analysis was also standardised to be 2 hours in each arm. Three urothelium samples of the same weight and size were taken from each of the 6 pre defined points (upper pole, mid pole, lower pole, renal pelvis, mid ureter and distal ureter) and the amount of fluorescence was measured with a spectrometer. RESULTS: The mean fluorescence detected at all 6 predefined points of the UUT urothelium was the highest for the retrograde method. This was statistically significant with p-value less than <0.05 at all 6 points. CONCLUSIONS: Retrograde infusion of UUT by an open ended ureteral catheter resulted in highest mean fluorescence detected at all 6 pre-defined points of the UUT urothelium compared to antegrade infusion and vesico-ureteral reflux via indwelling ureteric stents indicating retrograde method ideal for topical therapy throughout the UUT urothelium. More clinical studies are needed to demonstrate if retrograde method could lead to better clinical outcomes compared to the other two methods. PMID- 29039889 TI - Robot-assisted single port radical nephrectomy and cholecystectomy: description and technical aspects. AB - INTRODUCTION: Robot-Assisted Single Site Radical Nephrectomy (RASS-RN) has been reported by surgeons in Europe and United States (1-3). To our best knowledge this video presents the first RASS-RN with concomitant cholecystectomy performed in Latin America. CASE: A 66 year-old renal transplant male due to chronic renal failure presented with an incidental 1.3cm nodule in the upper pole of the right kidney. In addition, symptomatic gallbladder stones were detected. RESULTS: Patient was placed in modified flank position. Multichannel single port device was placed using Hassan's technique through a 3cm supra-umbilical incision. Standard radical nephrectomy and cholecystectomy were made using na 8.5mm camera, two 5mm robotic arms and an assistant 5mm access. Surgery time and estimated blood loss were 208 minutes and 100mL, respectively. Patient did well and was discharged within less than 48 hours, without complications. Pathology report showed benign renomedullary tumor of interstitial cells and chronic cholecystitis. DISCUSSION: Robotic technology improves ergonomics, gives better precision and enhances ability to approach complex surgeries. Robot-assisted Single Port aims to reduce the morbidity of multiple trocar placements while maintaining the advantages of robotic surgery (2). Limitations include the use of semi-rigid instruments providing less degree of motion and limited space leading to crash between instruments. On the other hand, it is possible to perform complex and concomitant surgeries with just one incision. CONCLUSION: RASS-RN seems to be safe and feasible option for selected cases. Studies should be performed to better understand the results using single port technique in Urology. PMID- 29039890 TI - Robot-assisted laparoscopic bladder diverticulectomy and greenlight laser anatomic vaporization of the prostate. PMID- 29039891 TI - Laparoscopic - assisted percutaneous nephrolithotomy as an alternative in the treatment of complex renal calculi in patients with retrorenal colon. PMID- 29039872 TI - Vitamin D Use and Health Outcomes After Surgery for Hip Fracture. AB - Daily administration of vitamin D is important for maintaining bone homeostasis. The orthopedic community has shown increased interest in vitamin D supplementation and patient outcomes after fracture. The current study used data from a large hip fracture trial to determine the proportion of patients who consistently used vitamin D after hip fracture surgery and to determine whether supplementation was associated with improved health-related quality of life and reduced reoperation rates. The FAITH study is a multicenter trial of elderly patients with femoral neck fracture treated with internal fixation. The current study asked a subset of patients included in the FAITH study about vitamin D supplementation and categorized them as consistent users, inconsistent users, or nonusers. This study also evaluated whether supplementation was associated with improved quality of life and reduced reoperation rates. The final analysis included 573 patients (mean age, 74.1 years; female, 66.3%; nondis-placed fractures, 72.4%). A total of 18.7% of participants reported no use of vitamin D, 35.6% reported inconsistent use, and 45.7% reported consistent use. Adjusted analysis found that consistent supplementation was associated with a 2.42 increase of the Short Form-12 physical component score 12 months postoperatively (P=.033). However, supplementation was not associated with reduced reoperation rates (P=.386). Despite guidelines recommending vitamin D supplementation, a low proportion of elderly patients with hip fracture use vitamin D consistently, suggesting a need for additional strategies to promote compliance. This study found that the use of vitamin D was associated with a statistically significant but not clinically significant improvement in health-related quality of life after hip fracture. Further research is needed to confirm these findings. [Orthopedics. 2017; 40(5):e868-e875.]. PMID- 29039892 TI - Step by step male to female transsexual surgery. AB - INTRODUCTION: After the diagnosis of transsexualism is confirmed therapy commences with psychotherapeutic preparation for the conversion, and after conversion, long-term patient rehabilitation is maintained for at least two years. The indication for surgery is chronic discomfort caused by discord with the patient's natural gender, intense dislike of developing secondary sex characteristics and the onset of puberty. The surgical conversion of transsexuals is the main step in the complex care of these problematic patients (1). This surgery was first described by Benjamin H, using a flap of inverted penile skin (2) and is considered the gold standard since then. Male-to-female transsexual surgical techniques are well defined and give good cosmetic and functional results. Sex reassignment surgery promotes the improvement of psychological aspects and social relationships as shown in the World Health Organization Quality of Life Assessment applied in the patients submitted to this procedure (3). Techniques include the creation of a normal appearing female introitus, a vaginoplasty allowing sexual intercourse and the capability of clitoral orgasm (4). Various methods for neovaginoplasty have been described and can be classified into five categories, i.e. pedicled intestinal transplants, penile skin grafts, penile skin flaps, non-genital skin flaps and non-genital skin grafts (5). In our Hospital, we use penile and scrotal skin flaps. Until now, 174 procedures have been performed by our team using this technique with high rates of satisfaction (3). PATIENTS AND METHODS: We present a step-by-step male to female transsexual surgery. CONCLUSION: Surgical gender reassignment of male transsexuals resulted in replicas of female genitalia which enabled coitus with orgasm (1). With this video we show step by step that a surgery using penile skin flaps is able to be performed with good cosmetic results. PMID- 29039893 TI - Open radical prostatectomy reproducing robot-assisted radical prostatectomy: Involving antegrade nerve sparing and continuous anastomosis. AB - PURPOSE: To present modified RRP using the same method as RALP and compare its surgical outcomes with RALP. MATERIALS AND METHODS: Demographics, perioperative and functional outcomes of the 322 patients that underwent RRP (N=99) or RALP (N=223) at our institution from January 2011 through June 2013 were evaluated retrospectively. Postoperative incontinence and erectile dysfunction are involved functional outcomes. During the modified procedure, the bladder neck was dissected first as for RALP. After dissection of vas deference and seminal vesicle, the prostate was dissected in an antegrade fashion with bilateral nerve saving. Finally, the urethra was cut at the prostate apex. After a Rocco suture was applied, and then urethrovesical anastomosis was performed with continuous suture as for RALP. RESULTS: Perioperative characteristics and complication rates were similar in the RRP and RALP groups except for mean estimated blood loss (p<0.001) and operative time (p<0.001). Incontinence rates at 3 and 12 months after RRP decreased from 67.6% to 10.1 and after RALP decreased from 53.4% to 5.4%. Positive surgical margin rates were non-significantly different in the RRP and RALP groups (30.3% and 37.2%, respectively). Overall postoperative potency rate at 12 months was not significant different in RRP and RALP groups (34.3% and 43.0%). CONCLUSIONS: RRP reproducing RALP was found to have surgical outcomes comparable to RALP. This technique might be adopted by experienced urologic surgeons as a standard procedure. PMID- 29039894 TI - Ureteral orifice involvement by urothelial carcinoma: long term oncologic and functional outcomes. AB - PURPOSE: Bladder cancer (BC) may involve the ureteral orifice, and the resection of the orifice has oncological and functional consequences such as development of upper tract urothelial carcinoma (UTUC), vesicoureteral reflux or ureteral stenosis. The aim of this study was to investigate the oncological and functional outcomes of the ureteral orifice resection in BC patients and determine the predictive factors for UTUC development. MATERIALS AND METHODS: A total of 1359 patients diagnosed with BC, between 1992 and 2012, were reviewed retrospectively. Patients were grouped with respect to orifice resection and compared for development of UTUC, survival and functional outcomes. Kaplan-Meier method was used to compare survival outcomes. Logistic regression analysis was performed to determine predictors of UTUC development. RESULTS: Ureteral orifice involvement was detected in 138 (10.2%) patients. The rate of synchronous (10.1% vs. 0.7%, p=0.0001) and metachronous (5.3% vs. 0.9%, p=0.0001) UTUC development was found to be higher in patients with ureteral orifice involvement. Orifice involvement and tumor stage were found to be associated with development of UTUC in the regression analysis. Overall (p=0.963) and cancer specific survival rates (p=0.629) were found to be similar. Hydronephrosis was also significantly higher in patients with orifice involved BC, due to the orifice obstruction caused by the tumor (33.3% vs. 13.9%, p<0.05). CONCLUSIONS: BC with ureteral orifice involvement has significantly increased the risk of having synchronous or metachronous UTUC. However, orifice involvement was not found to be associated with survival outcomes. Development of stricture due to resection is a very rare complication. PMID- 29039895 TI - Effects of Copaiba oil in the healing process of urinary bladder in rats. AB - INTRODUCTION: The appropriate closure of the urinary bladder is important to many urologic procedures to avoid the formation of fistulas and strictures by excessive fibrosis. This paper presents the alterations in the bladder healing process of rats after the topical use of Copaiba oil (Copaifera reticulata). MATERIAL AND METHODS: Ten male Wistar rats were used and randomly divided into two groups: Control group (CG): injected 1ml/kg of saline solution on the suture line; and Copaiba group (CpG): 0.63ml/kg of copaiba oil applied to the suture line. Euthanasia was performed on the seventh day after surgery. The criteria observed were adherences formation, histopathological modifications and stereology for collagen. RESULTS: Both groups showed adhesions to the bladder, with no statistically significant difference (p=0.1481). The microscopic evaluation revealed a trend to more severe acute inflammation process on the CpG, but there was statistical difference only in the giant cells reaction (p=0.0472) and vascular proliferation (p=0.0472). The stereology showed no difference. CONCLUSION: The copaiba oil modified the healing process, improving the quantity of giant cells and vascular proliferation, but not interfered in the collagen physiology. PMID- 29039896 TI - Transition to adulthood with a bladder augmentation: histopathologic concerns. AB - AIM: To investigate the histopathologic changes in native bladder and gastrointestinal segment, the relation between histopathologic changes, type of operation and the period passed over operation in patients with bladder augmentation. MATERIALS AND METHODS: Twenty consecutive patients were enrolled in this study. Histopathologic evaluation of the cystoscopic mucosal biopsies from native bladder and enteric augment was performed in all patients. RESULTS: Active or chronic non-specific inflammation of various degrees was found in all specimens except two. Metaplastic changes were detected in 3 patients. Two patients had squamous metaplasia (one focal, one extensive) and one patient had intestinal metaplasia. All metaplastic changes were found in native bladder specimens. The type of augmentation in patients with metaplastic changes were ileocystoplasty and sigmoidocystoplasty. No signs of malignancy were detected in any patient. CONCLUSION: The complexity of the disorders requiring bladder augmentation does not let the surgeons to draw a clear line between different groups of complications including malignancy formation. However, due to challenging course of the augmentation procedure itself, surgeons should be well aware of the possibility of malignancy development. PMID- 29039898 TI - Risk Factors for Aneurysm Recurrence: Response PMID- 29039897 TI - Biochemical recurrence after radical prostatectomy: what does it mean? AB - BACKGROUND: Radical prostatectomy (RP) has been used as the main primary treatment for prostate cancer (PCa) for many years with excellent oncologic results. However, approximately 20-40% of those patients has failed to RP and presented biochemical recurrence (BCR). Prostatic specific antigen (PSA) has been the pivotal tool for recurrence diagnosis, but there is no consensus about the best PSA threshold to define BCR until this moment. The natural history of BCR after surgical procedure is highly variable, but it is important to distinguish biochemical and clinical recurrence and to find the correct timing to start multimodal treatment strategy. Also, it is important to understand the role of each clinical and pathological feature of prostate cancer in BCR, progression to metastatic disease and cancer specific mortality (CSM). Review design: A simple review was made in Medline for articles written in English language about biochemical recurrence after radical prostatectomy. OBJECTIVE: To provide an updated assessment of BCR definition, its meaning, PCa natural history after BCR and the weight of each clinical/pathological feature and risk group classifications in BCR, metastatic disease and CSM. PMID- 29039900 TI - Lessons Learned From HIPAA Enforcement. PMID- 29039901 TI - Tech Trends. A look into the latest dental and general technology on the market. PMID- 29039902 TI - Calculated decisions: Emergency Department Assessment of Chest Pain Score (EDACS) PMID- 29039903 TI - Calculated decisions: HEART Score for major cardiac events PMID- 29039904 TI - Calculated decisions: TIMI risk score for UA/NSTEMI PMID- 29039905 TI - Calculated decisions: Vancouver Chest Pain Rule PMID- 29039906 TI - Few-Layer MXenes Delaminated via High-Energy Mechanical Milling for Enhanced Sodium-Ion Batteries Performance. AB - The global availability of sodium makes the exploration of superior sodium-ion batteries attractive for energy storage application. MXenes, as one of the most promising anodes for sodium-ion batteries, have been reported to have many advantages, such as high electronic conductivity and a hydrophilic surface. However, the compact multilayer structure and deficient delamination significantly inhibits their application, requiring high energy and showing decreased storage capacity and poor rate capabilities. Few-layer MXene has been proved to benefit superior electrochemical properties with a better ionic conductivity and two-dimensional layer structure. Herein, we report scale delamination of few-layer MXene nanosheets as anodes for sodium-ion batteries, which are prepared via an organic solvent assist high-energy mechanical-milling method. This approach efficiently prevents the oxidation of MXene and produces few-layer nanosheets structure, facilitating fast electron transport and Na+ diffusion. Electrochemical tests demonstrate that the few-layer MXenes show high specific capacity, excellent cycle stability, and good rate performance. Specifically, few-layer MXene nanosheets deliver a high reversible capacity of 267 mA h g-1 at a current density of 0.1 A g-1. After cycling 1500 cycles at a high rate of 1 A g-1, a reversible capacity of 76 mA h g-1 could be maintained. PMID- 29039907 TI - Li+-Permeable Film on Lithium Anode for Lithium Sulfur Battery. AB - Lithium-sulfur (Li-S) battery is an important candidate for next-generation energy storage. However, the reaction between polysulfide and lithium (Li) anode brings poor cycling stability, low Coulombic efficiency, and Li corrosion. Herein, we report a Li protection technology. Li metal was treated in crown ether containing electrolyte, and thus, treated Li was further used as the anode in Li S cell. Due to the coordination between Li+ and crown ether, a Li+-permeable film can be formed on Li, and the film is proved to be able to block the detrimental reaction between Li anode and polysulfide. By using the Li anode pretreated in 2 wt % B15C5-containing electrolyte, Li-S cell exhibits significantly improved cycling stability, such as~900 mAh g-1 after 100 cycles, and high Coulombic efficiency of>93%. In addition, such effect is also notable when high S loading condition is applied. PMID- 29039908 TI - A Comprehensive High-Resolution Targeted Workflow for the Deep Profiling of Sphingolipids. AB - Sphingolipids make up a highly diverse group of biomolecules that not only are membrane components but also are involved in various cellular functions such as signaling and protein sorting. To obtain a quantitative view of the sphingolipidome, sensitive, accurate, and comprehensive methods are needed. Here, we present a targeted reversed-phase liquid chromatography-high-resolution mass spectrometry-based workflow that significantly increases the accuracy of measured sphingolipids by resolving nearly isobaric and isobaric species; this is accomplished by a use of (i) an optimized extraction procedure, (ii) a segmented gradient, and (iii) parallel reaction monitoring of a sphingolipid specific fragmentation pattern. The workflow was benchmarked against an accepted sphingolipid model system, the RAW 264.7 cell line, and 61 sphingolipids were quantified over a dynamic range of 7 orders of magnitude, with detection limits in the low femtomole per milligram of protein level, making this workflow an extremely versatile tool for high-throughput sphingolipidomics. PMID- 29039909 TI - Indocyanine Green-holo-Transferrin Nanoassemblies for Tumor-Targeted Dual-Modal Imaging and Photothermal Therapy of Glioma. AB - Active-targeted cancer imaging and therapy of glioma has attracted much attention in theranostic nanomedicine. As a promising tumor-targeting ligand, holo transferrin (holo-Tf) has been applied for enhancing delivery of nanotheranostics. However, holo-Tf-based nanoassemblies for active targeting mediated multimodal imaging and therapeutics have not been previously reported. Here, we develop a one-step method for the preparation of holo-Tf-indocyanine green (holo-Tf-ICG) nanoassemblies for fluorescence (FL) and photoacoustic (PA) dual-modal imaging and photothermal therapy (PTT) of glioma. The nanoassemblies are formed by hydrophobic interaction and hydrogen bonds between holo-Tf and ICG, which exhibit excellent active tumor-targeting and high biocompability. The brain tumor with highly expressed Tf receptor can be clearly observed with holo-Tf-ICG nanoassemblies base on FL and PA dual-modal imaging in subcutaneous and orthotopic glioma models. Under the near-infrared laser irradiation, the holo-Tf ICG nanoassemblies accumulated in tumor regions can efficiently convert laser energy into hyperthermia for tumor ablation. The novel theranostic nanoplatform holds great promise for precision diagnosis and treatment of glioma. PMID- 29039910 TI - Sequential Dihydrogen Desorption from Hydride-Protected Atomically Precise Silver Clusters and the Formation of Naked Clusters in the Gas Phase. AB - We report the formation of naked cluster ions of silver of specific nuclearities, uncontaminated by other cluster ions, derived from monolayer-protected clusters. The hydride and phosphine co-protected cluster, [Ag18(TPP)10H16]2+ (TPP, triphenylphosphine), upon activation produces the naked cluster ion, Ag17+, exclusively. The number of metal atoms present in the naked cluster is almost the same as that in the parent material. Two more naked cluster ions, Ag21+ and Ag19+, were also formed starting from two other protected clusters, [Ag25(DPPE)8H22]3+ and [Ag22(DPPE)8H19]3+, respectively (DPPE, 1,2 bis(diphenylphosphino)ethane). By systematic fragmentation, naked clusters of varying nuclei are produced from Ag17+ to Ag1+ selectively, with systematic absence of Ag10+, Ag6+, and Ag4+. A seemingly odd number of cluster ions are preferred due to the stability of the closed electronic shells. Sequential desorption of dihydrogen occurs from the cluster ion, Ag17H14+, during the formation of Agn+. A comparison of the pathways in the formation of similar naked cluster ions starting from two differently ligated clusters has been presented. This approach developed bridges the usually distinct fields of gas-phase metal cluster chemistry and solution-phase metal cluster chemistry. We hope that our findings will enrich nanoscience and nanotechnology beyond the field of clusters. PMID- 29039911 TI - Halide Re-Shelled Quantum Dot Inks for Infrared Photovoltaics. AB - Colloidal quantum dots are promising materials for tandem solar cells that complement silicon and perovskites. These devices are fabricated from solution phase; however, existing methods for making infrared-bandgap CQD inks suffer agglomeration and fusion during solution exchange. Here we develop a ligand exchange that provides robust surface protection and thereby avoids aggregation. First, we exchanged long oleic acid ligands to a mixed system comprising medium chain ammonium and anionic chloride ligands; we then reshelled the surface using short halides and pseudohalide ligands that enabled transfer to a polar solvent. Absorbance and photoluminescence measurements reveal the retention of exciton sharpness, whereas X-ray photoelectron spectroscopy indicates halide capping. The best power conversion efficiency of these devices is 0.76 power points after filtering through silicon, which is 1.9* higher than previous single-step solution-processed IR-CQD solar cells. PMID- 29039912 TI - 3D-Printed Paper Spray Ionization Cartridge with Integrated Desolvation Feature and Ion Optics. AB - In this work we present the application of 3D-printing for the miniaturization and functionalization of an ion source for (portable) mass spectrometry (MS). Two versions of a 3D-printed cartridge for paper spray ionization (PSI) are demonstrated, assessed, and compared. We first focus on the use of 3D-printing to enable the integration of an embedded electrostatic lens and a manifold for internal sheath gas distribution and delivery. Cartridges with and without a sheath gas manifold and an electrostatic lens are compared with respect to analytical performance and operational flexibility. The sensitivity and limit of detection are improved in the cartridge with an electrostatic lens and sheath gas manifold compared to the cartridge without (15% and over 6.5* smaller, respectively). The use of these focusing elements also improved the average spray stability. Furthermore, the range of potentials required for PSI was lower, and the distance to the MS orifice over which spray could be obtained was larger. Importantly, both setups allowed quantification of a model drug in the ng/mL range with single-stage MS, after correction for spray instability. Finally, we believe that this work is an example of the impact that 3D-printing will have on the future of analytical device fabrication, miniaturization, and functionalization. PMID- 29039913 TI - Low-Temperature One-Step Growth of AlON Thin Films with Homogenous Nitrogen Doping Profile by Plasma-Enhanced Atomic Layer Deposition. AB - The AlON film with homogeneous nitrogen-doping profile was grown by plasma enhanced atomic layer deposition (PEALD) at low temperature. In this work, the precursors of the NH3 and the O2 were simultaneously introduced into the chamber during the PEALD growth at a relatively low temperature of 185 degrees C. It is found that the composition of the obtained film quickly changes from AlN to Al2O3 when a small amount of O2 is added. Thus, the NH3:O2 ratio should be maintained at a relatively high level (>85%) for realizing the AlON growth. Benefited from the growth method, the nitrogen can be doped evenly in the entire film. Moreover, the AlON films exhibit a lower surface roughness than the AlN as well as the Al2O3 ones. The Al 2p and N 1s X-ray photoelectron spectra show that the AlON film is composed of Al-N, Al-O, and N-Al-O bonds. Moreover, a three-layer construction of the AlON film is proposed through the Si 2p spectra analysis and reconfirmed by the transmission electron microscopy characterization. At last, the electrical and optical tests indicate that the AlON films prepared in this work can be employed as the gate dielectric in transistor application as well as the antireflection layer in photovoltaic application. PMID- 29039914 TI - Rapid Adsorption Enables Interface Engineering of PdMnCo Alloy/Nitrogen-Doped Carbon as Highly Efficient Electrocatalysts for Hydrogen Evolution Reaction. AB - The catalytic performance of Pd-based catalysts has long been hindered by surface contamination, particle agglomeration, and lack of rational structural design. Here we report a simple adsorption method for rapid synthesis (~90 s) of structure-optimized Pd alloy supported on nitrogen-doped carbon without the use of surfactants or extra reducing agents. The material shows much lower overpotential than 30 wt % Pd/C and 40 wt % Pt/C catalysts while exhibiting excellent durability (80 h). Moreover, unveiled by the density functional theory (DFT) calculation results, the underlying reason for the outstanding performance is that the PdMnCo alloy/pyridinic nitrogen-doped carbon interfaces weaken the hydrogen-adsorption energy on the catalyst and thus optimize the Gibbs free energy of the intermediate state (DeltaGH*), leading to a remarkable electrocatalytic activity. This work also opens up an avenue for quick synthesis of a highly efficient structure-optimized Pd-based catalyst. PMID- 29039915 TI - Two-Dimensional Vanadium Carbide (MXene) as a High-Capacity Cathode Material for Rechargeable Aluminum Batteries. AB - Rechargeable aluminum batteries (Al batteries) can potentially be safer, cheaper, and deliver higher energy densities than those of commercial Li-ion batteries (LIBs). However, due to the very high charge density of Al3+ cations and their strong interactions with the host lattice, very few cathode materials are known to be able to reversibly intercalate these ions. Herein, a rechargeable Al battery based on a two-dimensional (2D) vanadium carbide (V2CTx) MXene cathode is reported. The reversible intercalation of Al3+ cations between the MXene layers is suggested to be the mechanism for charge storage. It was found that the electrochemical performance could be significantly improved by converting multilayered V2CTx particles to few-layer sheets. With specific capacities of more than 300 mAh g-1 at high discharge rates and relatively high discharge potentials, V2CTx MXene electrodes show one of the best performances among the reported cathode materials for Al batteries. This study can lead to foundations for the development of high-capacity and high energy density rechargeable Al batteries by showcasing the potential of a large family of intercalation-type cathode materials based on MXenes. PMID- 29039916 TI - Hybrid Nanocomposite Films Comprising Dispersed VO2 Nanocrystals: A Scalable Aqueous-Phase Route to Thermochromic Fenestration. AB - Buildings consume an inordinate amount of energy, accounting for 30-40% of worldwide energy consumption. A major portion of solar radiation is transmitted directly to building interiors through windows, skylights, and glazed doors where the resulting solar heat gain necessitates increased use of air conditioning. Current technologies aimed at addressing this problem suffer from major drawbacks, including a reduction in the transmission of visible light, thereby resulting in increased use of artificial lighting. Since currently used coatings are temperature-invariant in terms of their solar heat gain modulation, they are unable to offset cold-weather heating costs that would otherwise have resulted from solar heat gain. There is considerable interest in the development of plastic fenestration elements that can dynamically modulate solar heat gain based on the external climate and are retrofittable onto existing structures. The metal insulator transition of VO2 is accompanied by a pronounced modulation of near infrared transmittance as a function of temperature and can potentially be harnessed for this purpose. Here, we demonstrate that a nanocomposite thin film embedded with well dispersed sub-100-nm diameter VO2 nanocrystals exhibits a combination of high visible light transmittance, effective near-infrared suppression, and onset of NIR modulation at wavelengths <800 nm. In our approach, hydrothermally grown VO2 nanocrystals with <100 nm diameters are dispersed within a methacrylic acid/ethyl acrylate copolymer after either (i) grafting of silanes to constitute an amorphous SiO2 shell or (ii) surface functionalization with perfluorinated silanes and the use of a perfluorooctanesulfonate surfactant. Homogeneous and high optical quality thin films are cast from aqueous dispersions of the pH-sensitive nanocomposites onto glass. An entirely aqueous-phase process for preparation of nanocrystals and their effective dispersion within polymeric nanocomposites allows for realization of scalable and viable plastic fenestration elements. PMID- 29039917 TI - Multifunctional Theranostic Nanoparticles Based on Exceedingly Small Magnetic Iron Oxide Nanoparticles for T1-Weighted Magnetic Resonance Imaging and Chemotherapy. AB - The recently emerged exceedingly small magnetic iron oxide nanoparticles (ES MIONs) (<5 nm) are promising T1-weighted contrast agents for magnetic resonance imaging (MRI) due to their good biocompatibility compared with Gd-chelates. However, the best particle size of ES-MIONs for T1 imaging is still unknown because the synthesis of ES-MIONs with precise size control to clarify the relationship between the r1 (or r2/r1) and the particle size remains a challenge. In this study, we synthesized ES-MIONs with seven different sizes below 5 nm and found that 3.6 nm is the best particle size for ES-MIONs to be utilized as T1 weighted MR contrast agent. To enhance tumor targetability of theranostic nanoparticles and reduce the nonspecific uptake of nanoparticles by normal healthy cells, we constructed a drug delivery system based on the 3.6 nm ES-MIONs for T1-weighted tumor imaging and chemotherapy. The laser scanning confocal microscopy (LSCM) and flow cytometry analysis results demonstrate that our strategy of precise targeting via exposure or hiding of the targeting ligand RGD2 on demand is feasible. The MR imaging and chemotherapy results on the cancer cells and tumor-bearing mice reinforce that our DOX@ES-MION3@RGD2@mPEG3 nanoparticles are promising for high-resolution T1-weighted MR imaging and precise chemotherapy of tumors. PMID- 29039918 TI - Bioinspired Antioxidant Defense System Constructed by Antioxidants-Eluting Electrospun F127-Based Fibers. AB - Cells were continuously exposed to oxidative damage by overproduction of reactive oxygen species (ROS) when they contacted implanted biomaterials. The strategy to prevent cells from oxidative injures remains a challenge. Inspired by the antioxidant defense system of cells, we constructed a biocompatible and ROS responsive architecture on the substrate of styrene-b-(ethylene-co-butylene)-b styrene elastomer (SEBS). The strategy was based on fabrication of architectures through reactive electrospinning of mixture including SEBS, acylated Pluronic F127, copolymer of poly(ethylene glycol) diacrylate and 1,2-ethanedithiol (PEGDA EDT), and antioxidants (AA-2G) and ROS-triggered release of AA-2G from microfibers to detoxify the excess ROS. We demonstrated that the stable and hydrophilic architecture was constructed by phase separation of SEBS/F127 components and cross-linking between polymer chains during electrospinning; the ROS-responsive fibers controlled the release of AA-2G and the interaction of AA 2G with ROS reduced the oxidative damage to cells. The bioinspired architecture not only reduced mechanical and oxidative damage to cells but also maintained normal ROS level for physiological hemostasis. This work provides basic principles to design and develop antioxidative biomaterials for implantation in vivo. PMID- 29039920 TI - Shedding Light on the Photoisomerization Pathway of Donor-Acceptor Stenhouse Adducts. AB - Donor-acceptor Stenhouse adducts (DASAs) are negative photochromes that hold great promise for a variety of applications. Key to optimizing their switching properties is a detailed understanding of the photoswitching mechanism, which, as yet, is absent. Here we characterize the actinic step of DASA-photoswitching and its key intermediate, which was studied using a combination of ultrafast visible and IR pump-probe spectroscopies and TD-DFT calculations. Comparison of the time resolved IR spectra with DFT computations allowed to unambiguously identify the structure of the intermediate, confirming that light absorption induces a sequential reaction path in which a Z-E photoisomerization of C2-C3 is followed by a rotation around C3-C4 and a subsequent thermal cyclization step. First and second-generation DASAs share a common photoisomerization mechanism in chlorinated solvents with notable differences in kinetics and lifetimes of the excited states. The photogenerated intermediate of the second-generation DASA was photo-accumulated at low temperature and probed with time-resolved spectroscopy, demonstrating the photoreversibility of the isomerization process. Taken together, these results provide a detailed picture of the DASA isomerization pathway on a molecular level. PMID- 29039921 TI - Molecular Cobalt Catalysts for O2 Reduction: Low-Overpotential Production of H2O2 and Comparison with Iron-Based Catalysts. AB - A series of mononuclear pseudomacrocyclic cobalt complexes have been investigated as catalysts for O2 reduction. Each of these complexes, with CoIII/II reduction potentials that span nearly 400 mV, mediate highly selective two-electron reduction of O2 to H2O2 (93-99%) using decamethylferrocene (Fc*) as the reductant and acetic acid as the proton source. Kinetic studies reveal that the rate exhibits a first-order dependence on [Co] and [AcOH], but no dependence on [O2] or [Fc*]. A linear correlation is observed between log(TOF) vs E1/2(CoIII/II) for the different cobalt complexes (TOF = turnover frequency). The thermodynamic potential for O2 reduction to H2O2 was estimated by measuring the H+/H2 open circuit potential under the reaction conditions. This value provides the basis for direct assessment of the thermodynamic efficiency of the different catalysts and shows that H2O2 is formed with overpotentials as low as 90 mV. These results are compared with a recently reported series of Fe-porphyrin complexes, which catalyze four-electron reduction of O2 to H2O. The data show that the TOFs of the Co complexes exhibit a shallower dependence on E1/2(MIII/II) than the Fe complexes. This behavior, which underlies the low overpotential, is rationalized on the basis of the catalytic rate law. PMID- 29039919 TI - The Molecular Tweezer CLR01 Stabilizes a Disordered Protein-Protein Interface. AB - Protein regions that are involved in protein-protein interactions (PPIs) very often display a high degree of intrinsic disorder, which is reduced during the recognition process. A prime example is binding of the rigid 14-3-3 adapter proteins to their numerous partner proteins, whose recognition motifs undergo an extensive disorder-to-order transition. In this context, it is highly desirable to control this entropy-costly process using tailored stabilizing agents. This study reveals how the molecular tweezer CLR01 tunes the 14-3-3/Cdc25CpS216 protein-protein interaction. Protein crystallography, biophysical affinity determination and biomolecular simulations unanimously deliver a remarkable finding: a supramolecular "Janus" ligand can bind simultaneously to a flexible peptidic PPI recognition motif and to a well-structured adapter protein. This binding fills a gap in the protein-protein interface, "freezes" one of the conformational states of the intrinsically disordered Cdc25C protein partner and enhances the apparent affinity of the interaction. This is the first structural and functional proof of a supramolecular ligand targeting a PPI interface and stabilizing the binding of an intrinsically disordered recognition motif to a rigid partner protein. PMID- 29039922 TI - Synthesis and Crystal Structures of Volatile Neptunium(IV) beta-Diketonates. AB - Production of certified reference materials in support of domestic nuclear forensics programs require volatile precursors for introduction into electromagnetic isotopic separation instruments. beta-Diketone chelates of tetravalent actinides are known for their high volatility, but previously developed synthetic approaches require starting material (NpCl4) that is prohibitively difficult and hazardous to prepare. An alternative strategy was developed here that uses controlled potential electrolysis to reduce neptunium to the tetravalent state in submolar concentrations of hydrochloric acid. Four different beta-diketone ligands of varying degrees of fluorination were reacted with an aqueous solution of Np4+. Products of this reaction were characterized via X-ray diffraction and infrared spectroscopy, and were found to be neutral 8 coordinate complexes that adopt square antiprismatic crystal geometry. Synthesis of Np beta-diketonates by this approach circumvents the necessity of using NpCl4 in tetravalent Np coordination compound synthesis. The volatility of the complexes was assessed using thermogravimetric analysis, where the temperature of sublimation was determined to be in the range of 180 degrees to 205 degrees C. The extent of fluorination did not appreciably alter the sublimation temperature of the complex. Thermal decomposition of these compounds was not observed during sublimation. High volatility and thermal stability of Np beta-diketonates make them ideal candidates for gaseous introduction into isotopic separation instruments. PMID- 29039923 TI - A Charge-Density-Tunable Three/Two-Dimensional Polymer/Graphene Oxide Heterogeneous Nanoporous Membrane for Ion Transport. AB - The design and fabrication of a robust nanoporous membrane in large scale is still a challenge and is of fundamental importance for practical applications. Here, a robust three/two-dimensional polymer/graphene oxide heterogeneous nanoporous membrane is constructed in large scale via the self-assembly approach by chemically designing a robust charge-density-tunable nanoporous ionomer with uniform pore size. To obtain a nanoporous polymer that maintains high mechanical strength and promotes multifunctionality, we designed a series of amphiphilic copolymers by introducing a positively charged pyridine moiety into the engineered polymer polyphenylsulfone. The multiphysical-chemical properties of the membrane enable it to work as a nanogate switch with synergy between wettability and surface charge change in response to pH. Then we systematically studied the transmembrane ionic transport properties of this two-/three dimensional porous system. By adjusting the charge density of the copolymer via chemical copolymerization through a controlled design route, the rectifying ratio of this asymmetric membrane could be amplified 4 times. Furthermore, we equipped a concentration-gradient-driven energy harvesting device with this charge-density tunable nanoporous membrane, and a maximum power of ~0.76 W m-2 was obtained. We expect this methodology for construction of a charge-density-tunable heterogeneous membrane by chemical design will shed light on the material design, and this membrane may further be used in energy devices, biosensors, and smart gating nanofluidic devices. PMID- 29039924 TI - Use of Electrochemistry in the Synthesis of Heterocyclic Structures. AB - The preparation and transformation of heterocyclic structures have always been of great interest in organic chemistry. Electrochemical technique provides a versatile and powerful approach to the assembly of various heterocyclic structures. In this review, we examine the advance in relation to the electrochemical construction of heterocyclic compounds published since 2000 via intra- and intermolecular cyclization reactions. PMID- 29039925 TI - Exosomes Secreted by HeLa Cells Shuttle on Their Surface the Plasma Membrane Associated Sialidase NEU3. AB - Sialidases are glycohydrolases that remove terminal sialic acid residues from oligosaccharides, glycolipids, and glycoproteins. The plasma membrane-associated sialidase NEU3 is involved in the fine-tuning of sialic acid-containing glycans directly on the cell surface and plays relevant roles in important biological phenomena such as cell differentiation, molecular recognition, and cancer transformation. Extracellular vesicles are membranous structures with a diameter of 0.03-1 MUm released by cells and can be detected in blood, urine, and culture media. Among extracellular vesicles, exosomes play roles in intercellular communication and maintenance of several physiological and pathological conditions, including cancer, and could represent a useful diagnostic tool for personalized nanomedicine approaches. Using inducible expression of the murine form of NEU3 in HeLa cells, a study of the association of the enzyme with exosomes released in the culture media has been performed. Briefly, NEU3 is associated with highly purified exosomes and localizes on the external leaflet of these nanovesicles, as demonstrated by enzyme activity measurements, Western blot analysis, and dot blot analysis using specific protein markers. On the basis of these results, it is plausible that NEU3 activity on exosome glycans enhances the dynamic biological behavior of these small extracellular vesicles by modifying the negative charge and steric hindrance of their glycocalyx. The presence of NEU3 on the exosomal surface could represent a useful marker for the detection of these nanovesicles and a tool for improving our understanding of the biology of these important extracellular carriers in physiological and pathological conditions. PMID- 29039926 TI - Zebrafish: A Visual Model To Evaluate the Biofate of Transferrin Receptor Targeted 7Peptide-Decorated Coumarin 6 Micelles. AB - In the present study, the zebrafish was explored as an in vivo model to assess the biofate of transferrin receptor (TfR)-targeted coumarin 6 (C6) micelles across various biological barriers. Three 7peptide (7pep)-decorated poly(ethylene glycol)-block-poly(epsilon-caprolactone) micelles loaded with fluorescence coumarin 6 (7pep-M-C6) with different ligand densities were constructed with particle sizes between 30 and 40 nm. Whole-mount immunostaining revealed that the expression level of TfR in the retina, brain, and intestine increased along with development stage. Compared to unmodified micelles, 7pep-M-C6 demonstrated higher uptake efficiency in the larval zebrafish. Preinhibition of TfR with 7pep implicated the TfR-mediated endocytosis pathway in the uptake of 7pep-M-C6. Confocal images of the larval zebrafish eye and brain showed the efficient delivery of C6 across the retinal pigment epithelial to the ganglion cell layer and the significant accumulation of C6 in all brain tissues, respectively, which plateaued when the ligand density was 10%. To investigate the intestinal distribution of C6, micelles were administered to adult zebrafish via gavaging. Notably, 7pep-M-C6 enhanced the transport of C6 across the villi and increased its aggregation into the basolateral membrane of the intestine. After the oral administration of 7pep-M-C6, C6 accumulated in the eye and brain. Forster resonance energy transfer analysis suggested that intact 7pep-modified micelles could enter the epithelial cells of the intestine, brain, and eye after oral administration in adult zebrafish. In conclusion, zebrafish could be used as a model for in vivo visual assessment of the biofate of TfR-targeted drug delivery systems. PMID- 29039927 TI - Packing Guidelines for Optimizing Singlet Fission Matrix Elements in Noncovalent Dimers. AB - A simplified version of the frontier orbital model for a noncovalent dimer is used to derive guidelines for dimer geometries that maximize the square of the electronic matrix element for singlet fission. The use of the guidelines requires only the knowledge of the highest occupied and lowest unoccupied orbital of the monomer and the overlaps of the atomic orbitals on partner A with those on partner B. PMID- 29039928 TI - Using Hyperfine Electron Paramagnetic Resonance Spectroscopy to Define the Proton Coupled Electron Transfer Reaction at Fe-S Cluster N2 in Respiratory Complex I. AB - Energy-transducing respiratory complex I (NADH:ubiquinone oxidoreductase) is one of the largest and most complicated enzymes in mammalian cells. Here, we used hyperfine electron paramagnetic resonance (EPR) spectroscopic methods, combined with site-directed mutagenesis, to determine the mechanism of a single proton coupled electron transfer reaction at one of eight iron-sulfur clusters in complex I, [4Fe-4S] cluster N2. N2 is the terminal cluster of the enzyme's intramolecular electron-transfer chain and the electron donor to ubiquinone. Because of its position and pH-dependent reduction potential, N2 has long been considered a candidate for the elusive "energy-coupling" site in complex I at which energy generated by the redox reaction is used to initiate proton translocation. Here, we used hyperfine sublevel correlation (HYSCORE) spectroscopy, including relaxation-filtered hyperfine and single-matched resonance transfer (SMART) HYSCORE, to detect two weakly coupled exchangeable protons near N2. We assign the larger coupling with A(1H) = [-3.0, -3.0, 8.7] MHz to the exchangeable proton of a conserved histidine and conclude that the histidine is hydrogen-bonded to N2, tuning its reduction potential. The histidine protonation state responds to the cluster oxidation state, but the two are not coupled sufficiently strongly to catalyze a stoichiometric and efficient energy transduction reaction. We thus exclude cluster N2, despite its proton-coupled electron transfer chemistry, as the energy-coupling site in complex I. Our work demonstrates the capability of pulse EPR methods for providing detailed information on the properties of individual protons in even the most challenging of energy-converting enzymes. PMID- 29039930 TI - Enantioselective Decarboxylative Cyanation Employing Cooperative Photoredox Catalysis and Copper Catalysis. AB - The merger of photoredox catalysis with asymmetric copper catalysis have been realized to convert achiral carboxylic acids into enantiomerically enriched alkyl nitriles. Under mild reaction conditions, the reaction exhibits broad substrate scope, high yields and high enantioselectivities. Furthermore, the reaction can be scaled up to synthesize key chiral intermediates to bioactive compounds. PMID- 29039931 TI - Profiling Cytidine Acetylation with Specific Affinity and Reactivity. AB - The human acetyltransferase NAT10 has recently been shown to catalyze formation of N4-acetylcytidine (ac4C), a minor nucleobase known to alter RNA structure and function. In order to better understand the role of RNA acetyltransferases in biology and disease, here we report the development and application of chemical methods to study ac4C. First, we demonstrate that ac4C can be conjugated to carrier proteins using optimized protocols. Next, we describe methods to access ac4C-containing RNAs, enabling the screening of anti-ac4C antibodies. Finally, we validate the specificity of an optimized ac4C affinity reagent in the context of cellular RNA by demonstrating its ability to accurately report on chemical deacetylation of ac4C. Overall, these studies provide a powerful new tool for studying ac4C in biological contexts, as well as new insights into the stability and half-life of this highly conserved RNA modification. More broadly, they demonstrate how chemical reactivity may be exploited to aid the development and validation of nucleobase-targeting affinity reagents designed to target the emerging epitranscriptome. PMID- 29039929 TI - Mechanistic Basis for ATP-Dependent Inhibition of Glutamine Synthetase by Tabtoxinine-beta-lactam. AB - Tabtoxinine-beta-lactam (TbetaL), also known as wildfire toxin, is a time- and ATP-dependent inhibitor of glutamine synthetase produced by plant pathogenic strains of Pseudomonas syringae. Here we demonstrate that recombinant glutamine synthetase from Escherichia coli phosphorylates the C3-hydroxyl group of the TbetaL 3-(S)-hydroxy-beta-lactam (3-HbetaL) warhead. Phosphorylation of TbetaL generates a stable, noncovalent enzyme-ADP-inhibitor complex that resembles the glutamine synthetase tetrahedral transition state. The TbetaL beta-lactam ring remains intact during enzyme inhibition, making TbetaL mechanistically distinct from traditional beta-lactam antibiotics such as penicillin. Our findings could enable the design of new 3-HbetaL transition state inhibitors targeting enzymes in the ATP-dependent carboxylate-amine ligase superfamily with broad therapeutic potential in many disease areas. PMID- 29039933 TI - Porous Uranium Diphosphonate Frameworks with Trinuclear Units Templated by Organic Ammonium Hydrolyzed from Amine Solvents. AB - By varying solvent systems, the solvothermal treatment of uranyl nitrate and methylenediphosphonic acid (H4PCP) afforded three new porous uranyl-organic frameworks (UOFs). All were structurally characterized by single-crystal X-ray diffraction and formulated as (Et2NH2)2[(UO2)3(PCP)2](H2O)2.5 (1), (MeNH3)(H3O)[(UO2)3(PCP)2(H2O)3] (2), and [Na(H2O)4](H3O)[(UO2)3(PCP)2(H2O)2](H2O)5 (3). These compounds crystallize with three-dimensional anionic frameworks containing U(VI) and distinct cationic species due to in situ solvent hydrolysis. The solvent systems diethylformamide (DEF), N-methyl-2-pyrrolindone (NMP), and the additive sodium vanadate (Na3VO4) significantly impact the resultant structures, affording diethyl ammonium, methyl ammonium, and sodium cations captured in channels of the anionic frameworks of 1 3. In 1, a trinuclear U3O18 unit formed by three uranyl polyhedra that share edges is connected into a three-dimensional framework. Compound 2 has a three dimensional framework formed from a uranyl-methylenediphosphonate layer that is pillared by UO7 pentagonal bipyramids. With the inclusion of sodium cations, 3 is a porous framework containing UO7 pentagonal bipyramids within a layer, with sodium cations and UO6 square bipyramids linking the adjacent layers. Compounds 1 3 feature the uranyl/ligand ratio of 3:2, but present diverse structural building units ranging from edge-shared trinuclear to heteronuclear assemblies. The compounds have been characterized by infrared (IR), Raman, and UV-vis spectroscopies, X-ray diffraction, and thermogravimetric analysis. PMID- 29039932 TI - Annotation: A Computational Solution for Streamlining Metabolomics Analysis. PMID- 29039934 TI - MeOTf-Mediated Annulation of Alkylnitriles and Arylalkynes Leading to Polysubstituted NH-Pyrroles. AB - A metal-free multicomponent domino reaction for the highly regioselective synthesis of tetrasubstituted NH-pyrroles from readily available alkylnitriles, arylalkynes, and MeOTf has been developed. A variety of NH-pyrroles were obtained in moderate to good yields under mild conditions. In addition, the reactions using diarylalkynes with electron-rich aryl groups were found to afford isoquinolines. PMID- 29039935 TI - Numerical Optimization of Density Functional Tight Binding Models: Application to Molecules Containing Carbon, Hydrogen, Nitrogen, and Oxygen. AB - New parametrizations for semiempirical density functional tight binding (DFTB) theory have been developed by the numerical optimization of adjustable parameters to minimize errors in the atomization energy and interatomic forces with respect to ab initio calculated data. Initial guesses for the radial dependences of the Slater-Koster bond integrals and overlap integrals were obtained from minimum basis density functional theory calculations. The radial dependences of the pair potentials and the bond and overlap integrals were represented by simple analytic functions. The adjustable parameters in these functions were optimized by simulated annealing and steepest descent algorithms to minimize the value of an objective function that quantifies the error between the DFTB model and ab initio calculated data. The accuracy and transferability of the resulting DFTB models for the C, H, N, and O system were assessed by comparing the predicted atomization energies and equilibrium molecular geometries of small molecules that were not included in the training data from DFTB to ab initio data. The DFTB models provide accurate predictions of the properties of hydrocarbons and more complex molecules containing C, H, N, and O. PMID- 29039936 TI - What Are the Physical Contents of Hubbard and Heisenberg Hamiltonian Interactions Extracted from Broken Symmetry DFT Calculations in Magnetic Compounds? AB - Analytical expressions of the interactions present in the Heisenberg-Dirac van Vleck and Hubbard Hamiltonians have been derived as functions of both the energy of several broken symmetry DFT solutions and their expectation value of the S2 spin operator. Then, following a strategy of decomposition of the magnetic exchange coupling into its main contributions (direct exchange, kinetic exchange, and spin polarization) and using a recently proposed method of spin decontamination, values of these interactions have been extracted. As already observed, they weakly depend on the correlation functional but strongly depend on the exchange one. In order to distinguish between the effect of the delocalization of the magnetic orbitals and that of the amount of Hartree-Fock exchange (HFX) when hybrid exchange-correlation functionals are used, we have disentangled these two contributions by either freezing the magnetic orbitals and varying the amount of HFX or varying the magnetic orbitals while keeping the same amount of HFX. As expected, increasing the amount of HFX induces a slight relocalization of the magnetic orbitals on the magnetic center which results in a weak increase of the repulsion energy U parameter and a weak decrease of both the direct exchange Kab and hopping |t| parameters. Conversely, the amount of HFX has a huge effect on all the parameters, even when some of the parameters should be exchange-independent, like U. Indeed, it is analytically demonstrated that the physical content of the U parameter extracted from several broken-symmetry solutions depends on the amount of HFX and that this pathological behavior has the same origin as the self-interaction error. This result is interesting not only to theoretical chemists working in the field of magnetic systems but also to DFT methodologists interested in using this theory for studying either excited states or strongly correlated systems. Finally, the performance of the range separated omegaB97XD functional for both ferromagnetic and antiferromagnetic transition-metal compounds and organic systems must be noted. PMID- 29039937 TI - Concentration-Independent Stereodynamic g-Probe for Chiroptical Enantiomeric Excess Determination. AB - Enantiomeric excess (ee) determination is crucial in many aspects of science, from synthesis to materials. Within this subject, coupling molecular sensors with chiroptical techniques is a straightforward approach to the stereochemical analysis of chiral molecules, especially in terms of process immediacy and labor. Stereodynamic probes typically consist of racemic mixtures of rapidly interconverting enantiomeric conformers able to recognize a chiral analyte and greatly amplify its chiroptical readout. A great number of sensors have been developed, but their activity is generally restricted to one or a few classes of chemicals, and the analysis outcome relies on precise knowledge of the probe and analyte concentrations. This aspect in particular limits the potential practical applications. Here we report an oxo-vanadium(V) aminotriphenolate complex that was found to act as a concentration-independent stereodynamic sensor for a wide range of compounds. The bare complex is CD-silent, but coordination of an enantioenriched substrate immediately gives rise to intense Cotton effects in the visible region. Furthermore, a geometry change during the substrate-complex interaction leads to a marked optical response, as witnessed by a strong red shift of the probe absorption bands, thus allowing the generation of dichroic signals in an "interference-free" area of the spectrum. This peculiarity allows for a linear correlation at high wavelengths between the ee of the analyte and anisotropy g-factor. This parameter derives from the differential circularly polarized light absorption of the sample but is independent of concentration. The newly developed sensor based on a simple coordination process has an unprecedented general character in terms of substrate scope and employment. PMID- 29039938 TI - The Electro-Deposition/Dissolution of CuSO4 Aqueous Electrolyte Investigated by In Situ Soft X-ray Absorption Spectroscopy. AB - The electrodeposition nature of copper on a gold electrode in a 4.8 pH CuSO4 solution was inquired using X-ray absorption spectroscopy, electrochemical quartz crystal microbalance, and thermal desorption spectroscopy techniques. Our results point out that the electrodeposition of copper prompts the formation of stable oxi-hydroxide species with a formal oxidation state Cu+ without the evidence of metallic copper formation (Cu0). Moreover, the subsequent anodic polarization of Cu2Oaq yields the formation of CuO, in the formal oxidation state Cu2+, which is dissolved at higher anodic potential. It was found that the dissolution process needs less charge than that required for the electrodeposition indicating a nonreversible process most likely due to concomitant water splitting and formation of protons during the electrodeposition. PMID- 29039939 TI - Structural Engineering in Plasmon Nanolasers. AB - This review focuses on structural engineering of lasers from the macroscale to the nanoscale, with an emphasis on plasmon nanolasers. Conventional lasers based on Fabry-Perot cavities are limited in device size. In contrast, plasmon nanolasers can overcome the diffraction limit of light and incorporate unique structural designs to engineer cavity geometries and optical band structure. Since the spaser concept was introduced in 2003, tremendous progress in nanolasing has been made on architectures that exploit metal films and nanoparticles. Theoretical approaches in both frequency and time domains have inspired the development of plasmon nanolasers based on mode analysis and time dependent lasing buildup. Plasmon nanolasers designed by band-structure engineering open prospects for manipulation of lasing characteristics such as directional emission, real-time tunable wavelengths, and controlled multimode lasing. PMID- 29039940 TI - NosN, a Radical S-Adenosylmethionine Methylase, Catalyzes Both C1 Transfer and Formation of the Ester Linkage of the Side-Ring System during the Biosynthesis of Nosiheptide. AB - Nosiheptide, a member of the e series of macrocyclic thiopeptide natural products, contains a side-ring system composed of a 3,4-dimethylindolic acid (DMIA) moiety connected to Glu6 and Cys8 of the thiopeptide backbone via ester and thioester linkages, respectively. Herein, we show that NosN, a predicted class C radical S-adenosylmethionine (SAM) methylase, catalyzes both the transfer of a C1 unit from SAM to 3-methylindolic acid linked to Cys8 of a synthetic substrate surrogate as well as the formation of the ester linkage between Glu6 and the nascent C4 methylene moiety of DMIA. In contrast to previous studies that indicated that 5'-methylthioadenosine is the immediate methyl donor in the reaction, in our studies, SAM itself plays this role, giving rise to S adenosylhomocysteine as a coproduct of the reaction. PMID- 29039941 TI - C-H...O Hydrogen Bonding. The Prototypical Methane-Formaldehyde System: A Critical Assessment. AB - Distinguishing the functionality of C-H...O hydrogen bonds (HBs) remains challenging, because their properties are difficult to quantify reliably. Herein, we present a study of the model methane-formaldehyde complex (MFC). Six stationary points on the MFC potential energy surface (PES) were obtained at the CCSD(T)/ANO2 level. The CCSDT(Q)/CBS interaction energies of the conformers range from only -1.12 kcal mol-1 to -0.33 kcal mol-1, denoting a very flat PES. Notably, only the lowest energy stationary point (MFC1) corresponds to a genuine minimum, whereas all other stationary points-including the previously studied ideal case of ae(C-H...O) = 180 degrees -exhibit some degree of freedom that leads to MFC1. Despite the flat PES, we clearly see that the HB properties of MFC1 align with those of the prototypical water dimer O-H...O HB. Each HB property generally becomes less prominent in the higher-energy conformers. Only the MFC1 conformer prominently exhibits (1) elongated C-H donor bonds, (2) attractive C-H...O?C interactions, (3) n(O) -> sigma*(C-H) hyperconjugation, (4) critical points in the electron density from Bader's method and from the noncovalent interactions method, (5) positively charged donor hydrogen, and (6) downfield NMR chemical shifts and nonzero 2J(CM-HM...OF) coupling constants. Based on this research, some issues merit further study. The flat PES hinders reliable determinations of the HB-induced shifts of the C-H stretches; a similarly difficult challenge is observed for the experiment. The role of charge transfer in HBs remains an intriguing open question, although our BLW and NBO computations suggest that it is relevant to the C-H...O HB geometries. These issues notwithstanding, the prominence of the HB properties in MFC1 serves as clear evidence that the MFC is predominantly bound by a C-H...O HB. PMID- 29039942 TI - Correlating Resolving Power, Resolution, and Collision Cross Section: Unifying Cross-Platform Assessment of Separation Efficiency in Ion Mobility Spectrometry. AB - Here we examine the relationship among resolving power (Rp), resolution (Rpp), and collision cross section (CCS) for compounds analyzed in previous ion mobility (IM) experiments representing a wide variety of instrument platforms and IM techniques. Our previous work indicated these three variables effectively describe and predict separation efficiency for drift tube ion mobility spectrometry experiments. In this work, we seek to determine if our previous findings are a general reflection of IM behavior that can be applied to various instrument platforms and mobility techniques. Results suggest IM distributions are well characterized by a Gaussian model and separation efficiency can be predicted on the basis of the empirical difference in the gas-phase CCS and a CCS based resolving power definition (CCS/DeltaCCS). Notably traveling wave (TWIMS) was found to operate at resolutions substantially higher than a single-peak resolving power suggested. When a CCS-based Rp definition was utilized, TWIMS was found to operate at a resolving power between 40 and 50, confirming the previous observations by Giles and co-workers. After the separation axis (and corresponding resolving power) is converted to cross section space, it is possible to effectively predict separation behavior for all mobility techniques evaluated (i.e., uniform field, trapped ion mobility, traveling wave, cyclic, and overtone instruments) using the equations described in this work. Finally, we are able to establish for the first time that the current state-of-the-art ion mobility separations benchmark at a CCS-based resolving power of >300 that is sufficient to differentiate analyte ions with CCS differences as small as 0.5%. PMID- 29039943 TI - Synthesis and Structural, Electrical, and Magnetic Properties of New Iron Aluminum Alluaudite Phases beta-Na2Ni2M(PO4)3 (M = Fe and Al). AB - Herein we report the studies of different physical properties (structural, magnetic, thermal, morphologic, electrical, and electrochemical) of two new allotropic beta-Na2Ni2M(PO4)3 (NNMP) phosphates, with M = Fe and Al. Pure orthorhombic single-phase powders were prepared under air, using an autocombustion synthesis method. They crystallize in the orthorhombic Imma space group with similar unit cell parameters [a = 10.1592(2), b = 13.0321(3), c = 6.4864(2) A] and [a = 10.3993(1), b = 13.1966(1), c = 6.4955(1) A] for beta Na2Ni2M(PO4)3 (NNAP) and beta-Na2Ni2Fe(PO4)3 (NNFP), respectively. Crystal structures of both compounds were determined using X-ray powder diffraction and Rietveld method refinements, which indicate the occurrence of Ni2+ in the 8g site, and of M3+ in the 4a site of the structure. The structure consists of a three-dimensional anionic framework obtained by the association on MO6, NiO6, and PO4 polyhedra, sharing edges and corners. The resulting three-dimensional structure creates monodimensional channels along the [100] and [010] directions formed by face-shared oxygen polyhedra and occupied by Na+ cations. This nondisordered cationic distribution is confirmed by a significant change of magnetic properties. Thus, both NNAP and NNFP samples show paramagnetic to ferromagnetic transition at 14 and 19 K, respectively. For the two compounds, thermal stability, electrical conductivity, and electrochemical properties have been also investigated. The intercalation/desintercalation properties of NNMP compounds as positive electrode were tested in sodium-ion batteries. The first cycling curves exhibit a significant polarization for both prepared samples. PMID- 29039944 TI - 3D-Printed Microflow Injection Analysis Platform for Online Magnetic Nanoparticle Sorptive Extraction of Antimicrobials in Biological Specimens as a Front End to Liquid Chromatographic Assays. AB - In this work, the concept of 3D-printed microflow injection (3D-MUFI) embodying a dedicated multifunctional 3D-printed stator onto a rotary microvalve along with a mesofluidic sample preparation platform is proposed for the first time. A transparent 3D-printed stereolithographic mesofluidic chip device accommodating polyaniline (PANI) decorated magnetic nanoparticles (32.5 +/- 3.8 mg) is harnessed to in-line sorptive microextraction as a front end to liquid chromatography with peak focusing. As a proof-of-concept application, the 3D-MUFI assembly was resorted to matrix cleanup and automatic programmable-flow determination of organic emerging contaminants (4-hydroxybenzoate analogues and triclosan as antimicrobial model analytes) in human saliva and urine samples. By using a sample volume of 1.0 mL with a loading flow rate of 200 MUL min-1, an eluent volume of 120 MUL at 80 MUL min-1, and online HPLC injection of 300 MUL of the mixture of eluate and Milli-Q water (in a 1:2 ratio) to prevent band broadening effects of the most polar analytes, the limits of detection (3sigma criterion) ranged from 1.1 to 4.5 ng mL-1 for methylparaben (MP), ethylparaben (EP), propylparaben (PrP), phenylparaben (PhP), butylparaben (BP), and triclosan (TCS). Enhancement factors of 16-25 were obtained for the target analytes. Spike recoveries ranged from 84 to 117% for both saliva and urine samples. The online 3D-MUFI hyphenated method is synchronized with the chromatographic separation and features a chip lifetime of more than 20 injections with minimal losses of moderately nonpolar compounds on the walls of the mesofluidic device. PMID- 29039945 TI - Structural Consequences of 1,4-Cyclohexanedicarboxylate Cis/Trans Isomerism in Uranyl Ion Complexes: From Molecular Species to 2D and 3D Entangled Nets. AB - trans-1,4-Cyclohexanedicarboxylic acid (t-1,4-chdcH2) or the commercially available mixture of the cis and trans isomers (c,t-1,4-chdcH2) has been used in the synthesis of a series of 14 uranyl ion complexes, all obtained under solvohydrothermal conditions, some in the presence of additional metal cations and/or 2,2'-bipyridine (bipy). With its two isomeric forms having very different shapes and its great sensitivity to the experimental conditions, 1,4-chdc2- appears to be suitable for the synthesis of uranyl ion complexes displaying a wide range of architectures. Under the conditions used, the pure trans isomer gives only the complexes [UO2(t-1,4-chdc)(H2O)2] (1) and [UO2(t-1,4-chdc)] (2), which crystallize as one- and two-dimensional (1D and 2D) species, respectively. Complexes containing either the cis isomer alone or mixtures of the two isomers in varying proportion were obtained from the isomer mixture. The neutral complexes [UO2(c-1,4-chdc)(DMF)] (3) and [UO2(c-1,4-chdc)(bipy)] (4) are 2D and 1D assemblies, respectively, while all the other complexes are anionic and include various counterions. [C(NH2)3]3[H2NMe2][(UO2)4(c-1,4-chdc)6].H2O (5) crystallizes as a three-dimensional (3D) framework with {103} topology. While [H2NMe2]2[(UO2)2(c-1,4-chdc)2(t-1,4-chdc)].DMF.2H2O (6) is a 1D ladderlike polymer, [H2NMe2]2[(UO2)2(c-1,4-chdc)(t-1,4-chdc)2].2H2O (7), which differs in the cis/trans ratio, is a 3-fold 2D interpenetrated network with {63} honeycomb topology. The related [H2NMe2]2[(UO2)2(c,t-1,4-chdc)3].2.5H2O (8), with one disordered ligand of uncertain geometry, is a 3-fold 3D interpenetrated system. The two isomorphous complexes [Co(bipy)3][(UO2)2(c-1,4-chdc)3].1.5H2O (9) and [Cd(bipy)3][(UO2)2(c-1,4-chdc)3].1.5H2O (10) form 3D frameworks with the {103} srs topological type. In contrast, [Ni(bipy)3]2[(UO2)4(c-1,4-chdc)2(t-1,4 chdc)(NO3)6].2H2O (11) is a molecular, tetranuclear complex due to the presence of terminal nitrate ligands. A 2-fold 3D interpenetration of frameworks with {103} ths topology is observed in [Cu(bipy)2]2[(UO2)2(c-1,4-chdc)2(t-1,4 chdc)].2H2O (12), while [Zn(bipy)3][(UO2)2(c-1,4-chdc)3].4H2O (13) crystallizes as a 2D net with the common {4.82} fes topological type. The additional PbII cation is an essential part of the 3D framework formed in [UO2Pb2(c-1,4-chdc)(t 1,4-chdc)2(bipy)2] (14), in which uranyl and its ligands alone form 1D subunits. Together with previous results, the solid-state uranyl emission properties of seven of the present complexes evidence a general trend, with the maxima for the complexes with O6 equatorial environments being blue-shifted with respect to those for complexes with O5 environments. PMID- 29039946 TI - Phenylpropenoids from Bupleurum fruticosum as Anti-Human Rhinovirus Species A Selective Capsid Binders. AB - The dichloromethane extract of the leaves of Bupleurum fruticosum was found to inhibit the replication of human rhinovirus (HRV) serotypes 14 and 39. Bioassay guided fractionation led to the isolation of seven phenylpropenol derivatives (3 9), two polyacetylenes (1 and 2), and one monoterpene (10). Compounds 1 and 10 were identified as previously undescribed secondary metabolites after extensive 1D and 2D NMR experiments as well as high-resolution mass spectrometry. Compounds 2, 4, and 5 showed a selective inhibition of viral replication against HRV39 serotype, with 2 and 4 being the most active, with EC50 values of 1.8 +/- 0.02 and 2.4 +/- 0.04 MUM. Mechanism of action studies indicated that 4 behaves not only as a capsid binder, interfering with the early phases of virus replication, but also as a late-phase replication inhibitor. Docking experiments were performed to confirm the ability of the antiviral phenylpropenoids to selectively fit into the hydrophobic pocket of VP1-HRV39. PMID- 29039947 TI - Revision of the Absolute Configuration of Preussilides A-F Established by the Exciton Chirality Method. AB - In a recent contribution to this Journal (J. Nat. Prod. 2017, 80, 1531-1540), Noumeur et al. reported the isolation and structure elucidation of six novel polyketides named preussilides A-F, endowed with remarkable antiproliferative activity. The absolute configuration of the new compounds was established mainly by analyzing exciton-coupled electronic circular dichroism (ECD) spectra. However, the application of the exciton chirality method (ECM) was incorrect, because the chirality defined by transition moments was assigned in a wrong way. A correct application of the ECM, substantiated by time-dependent density functional theory (TDDFT) calculations of ECD spectra, led us to revise the absolute configuration of Preussilides A-F. A brief discussion on the criteria required for a correct application of the ECM is also presented. PMID- 29039948 TI - Photoassisted Homocoupling of Methyl Iodide Mediated by Atomic Gold in Low Temperature Neon Matrix. AB - Infrared spectroscopy and density functional theory calculations showed that the gold complexes [CH3-Au-I] and [(CH3)2-Au-I2], in which one and two CH3I molecule(s), respectively, are oxidatively adsorbed on the Au atoms, are formed in a solid neon matrix via reactions between laser-ablated gold atoms and CH3I. Global reaction route mapping calculations revealed that the heights of the activation barriers for the sequential oxidative additions to produce [CH3-Au-I] and [(CH3)2-Au-I2] are 0.53 and 1.00 eV, respectively, suggesting that the reactions proceed via electronically excited states. The reductive elimination of ethane (C2H6) from [(CH3)2-Au-I2] leaving AuI2 was hindered by an activation barrier as high as 1.22 eV but was induced by visible-light irradiation on [(CH3)2-Au-I2]. These results demonstrate that photoassisted homocoupling of CH3I is mediated by Au atoms via [(CH3)2-Au-I2] as an intermediate. PMID- 29039949 TI - Highly Efficient Red-Emitting Carbon Dots with Gram-Scale Yield for Bioimaging. AB - Carbon dots (CDs) are a new class of photoluminescent (PL), biocompatible, environment-friendly, and low-cost carbon nanomaterials. Synthesis of highly efficient red-emitting carbon dots (R-CDs) on a gram scale is a great challenge at present, which heavily restricts the wide applications of CDs in the bioimaging field. Herein, R-CDs with a high quantum yield (QY) of 53% are produced on a gram scale by heating a formamide solution of citric acid and ethylenediamine. The as-prepared R-CDs have an average size of 4.1 nm and a nitrogen content of about 30%, with an excitation-independent emission at 627 nm. After detailed characterizations, such strong red fluorescence is ascribed to the contribution from the nitrogen- and oxygen-related surface states and the nitrogen-derived structures in the R-CD cores. Our R-CDs show good photostability and low cytotoxicity, and thus they are excellent red fluorescence probes for bioimaging both in vitro and in vivo. PMID- 29039950 TI - Calorimetric and Spectroscopic Studies of the Effects of the Cell Penetrating Peptide Pep-1 and the Antimicrobial Peptide Combi-2 on Vesicles Mimicking Escherichia coli Membrane. AB - The objective of this study is to measure and compare the effects of the cell penetrating peptide (CPP) Pep-1 and the antimicrobial peptide (AMP) combi-2 on vesicles of membranes mimicking Escherichia coli (E. coli). To characterize the effects of Pep-1 and combi-2 on E. coli membrane vesicles, a combination of five biophysical techniques was employed: fluorescence, infrared, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) techniques. Upon addition of E. coli membranes, tryptophan fluorescence intensity of Pep-1 showed a sudden blue-shift and decreased in a nonconcentration-dependent manner while the intensity of combi-2 decreased in a concentration-dependent manner, most significantly for a very low peptide-to lipid ratio of 1:40. Complexes of Pep-1 and combi-2 with E. coli membrane mimicking vesicles having shown a significant blue-shift in fluorescence intensity were then prepared and studied in freeze-dried states. IR results indicate that Pep-1 and combi-2 adopt a major 310-helix structure in the presence of E. coli membrane mimicking vesicles at low peptide concentration. Pep-1 and combi-2 have a similar effect on E. coli membrane mimicking vesicles at low concentration even though combi-2 is in the interfacial region of the bilayer while Pep-1 is located between the interfacial region and the hydrophobic region. Combi-2 at low concentration acts as a CPP. TGA and DSC results reveal that combi 2 has a stabilizing effect on E. coli at any concentration while Pep-1 stabilizes the E. coli membrane only at high concentration. Both peptides show a preferential interaction with one of the anionic lipids leading to clustering in E. coli membrane. SEM images reveal that Pep-1 and combi-2 form superstructures including fibrils in the presence of E. coli membrane mimicking vesicles. Calorimetric and spectroscopic techniques may be used in a complementary way with imaging techniques to gain more insights into peptide-lipid interactions. PMID- 29039951 TI - 1,2-Fluorine Radical Rearrangements: Isomerization Events in Perfluorinated Radicals. AB - Devising effective degradation technologies for perfluoroalkyl substances (PFASs) is an active area of research, where the molecular mechanisms involving both oxidative and reductive pathways are still elusive. One commonly neglected pathway in PFAS degradation is fluorine atom migration in perfluoroalkyl radicals, which was largely assumed to be implausible because of the high C-F bond strength. Using density functional theory calculations, it was demonstrated that 1,2-F atom migrations are thermodynamically favored when the fluorine atom migrated from a less branched carbon center to a more branched carbon center. Activation barriers for these rearrangements were within 19-29 kcal/mol, which are possible to easily overcome at elevated temperatures or in photochemically activated species in the gas or aqueous phase. It was also found that the activation barriers for the 1,2-F atom migration are lowered as much as by 10 kcal/mol when common oxidative degradation products such as HF assisted the rearrangements or if the resulting radical center was stabilized by vicinal pi bonds. Natural bond orbital analyses showed that fluorine moves as a radical in a noncharge-separated state. These findings add an important reaction to the existing knowledge of mechanisms for PFAS degradation and highlights the fact that 1,2-F atom shifts may be a small channel for isomerization of these compounds, but upon availability of mineralization products, this isomerization process could become more prominent. PMID- 29039952 TI - Chloromonilinic Acids C and D, Phytotoxic Tetrasubstituted 3-Chromanonacrylic Acids Isolated from Cochliobolus australiensis with Potential Herbicidal Activity against Buffelgrass (Cenchrus ciliaris). AB - The fungal pathogen Cochliobolus australiensis isolated from infected leaves of the invasive weed buffelgrass (Pennisetum ciliare) was grown in vitro to evaluate its ability to produce phytotoxic metabolites that could potentially be used as natural herbicides against this weed. Two new tetrasubstituted 3-chromanonacrylic acids, named chloromonilinic acids C (1) and D (2), were isolated from the liquid cultures of C. australiensis, together with the known chloromonilinic acid B. Chloromonilinic acids C and D were characterized by spectroscopic and chemical methods as (E)-3-chloro-3-[(5-hydroxy-3-(1-hydroxy-2-methoxy-2-oxoethyl)-7-methyl 4-oxo-4H-chromen-2-yl)]acrylic acid and (Z)-3-chloro-3-[(5-hydroxy-3-(2-methoxy-2 oxoethyl)-7-methyl-4-oxo-4H-chromen-2-yl)]acrylic acid, respectively. The stereochemistry of chloromonilinic acids C and D was determined using a combination of spectroscopic and computational methods, including electronic circular dichroism. The fungus produced these compounds in two different liquid media together with cochliotoxin, radicinin, radicinol, and their 3-epimers. The radicinin-related compounds were also produced when the fungus was grown in wheat seed solid culture, but chloromonilinic acids were not found in the solid culture organic extract. All three chloromonilinic acids were toxic to buffelgrass in a seedling elongation bioassay, with significantly delayed germination and dramatically reduced radicle growth, especially at a concentration of 5 * 10-3 M. PMID- 29039953 TI - Phosphoryl Transfer Reaction in RNA: Is the Substrate-Assisted Catalysis a Possible Mechanism in Certain Solvents? AB - A proton shuttle mechanism for the phosphoryl transfer reaction in RNA, in which a proton is transferred from the nucleophile to the leaving group through a nonbridged oxygen atom of the phosphate, was explored using the MO6-2X density functional method and the solvent continuum model. This reaction is the initial step of the RNA hydrolysis. We used different solvents characterized by their dielectric constant, and, for each of them, we studied the nuclear and electronic relaxation, produced by the solvent reaction field, for the stationary points. Given that RNA has a poor leaving group, the bond breaking corresponds to the rate-determining step. If the O atom is substituted by a S atom, the leaving group is now good, and the rate-determining step is now the nucleophilic attack concerted with the proton transfer. The most relevant result we found is that none of the solvents we studied has a free energy of activation that is smaller than the one in water. This suggests that the enzyme catalysis following this mechanism must be due to the permanent electric field that is created by a preorganized charge distribution but not to the solvent reaction field. PMID- 29039954 TI - A Versatile Method for the Distance-Dependent Structural Characterization of Interacting Soft Interfaces by Neutron Reflectometry. AB - Interactions between soft interfaces govern the behavior of emulsions and foams and crucially influence the functions of biological entities like membranes. To understand the character of these interactions, detailed insight into the interfaces' structural response in terms of molecular arrangements and conformations is often essential. This requires the realization of controlled interaction conditions and surface-sensitive techniques capable of resolving the structure of buried interfaces. Here, we present a new approach to determine the distance-dependent structure of interacting soft interfaces by neutron reflectometry. A solid/water interface and a water/oil interface are functionalized independently and initially macroscopically separated. They are then brought into contact and structurally characterized under interacting conditions. The nanometric distance between the two interfaces can be varied via the exertion of osmotic pressures. Our first experiments on lipid-anchored polymer brushes interacting across water with solid-grafted polyelectrolyte brushes and with bare silicon surfaces reveal qualitatively different interaction scenarios depending on the chemical composition of the two involved interfaces. PMID- 29039955 TI - Critical Role of Ultrathin Graphene Films with Tunable Thickness in Enabling Highly Stable Sodium Metal Anodes. AB - Sodium (Na) metal has shown great promise as an anode material for the next generation energy storage systems because of its high theoretical capacity, low cost, and high earth abundance. However, the extremely high reactivity of Na metal with organic electrolyte leads to the formation of unstable solid electrolyte interphase (SEI) and growth of Na dendrites upon repeated electrochemical stripping/plating, causing poor cycling performance, and serious safety issues. Herein, we present highly stable and dendrite-free Na metal anodes over a wide current range and long-term cycling via directly applying free standing graphene films with tunable thickness on Na metal surface. We systematically investigate the dependence of Na anode stability on the thickness of the graphene film at different current densities and capacities. Our findings reveal that only a few nanometer (~2-3 nm) differences in the graphene thickness can have decisive influence on the stability and rate capability of Na anodes. To achieve the optimal performance, the thickness of the graphene film covered on Na surface needs to be meticulously selected based on the applied current density. We demonstrate that with a multilayer graphene film (~5 nm in thickness) as a protective layer, stable Na cycling behavior was first achieved in carbonate electrolyte without any additives over 100 cycles at a current density as high as 2 mA/cm2 with a high capacity of 3 mAh/cm2. We believe our work could be a viable route toward high-energy Na battery systems, and can provide valuable insights into the lithium batteries as well. PMID- 29039956 TI - Tetraarylphosphonium Salt-Catalyzed Synthesis of Oxazolidinones from Isocyanates and Epoxides. AB - Preparation of a range of oxazolidinones, including enantioenriched N-aryl substituted oxazolidinones, in which tetraarylphosphonium salts (TAPS) catalyze the [3 + 2] coupling reaction of isocyanates and epoxides effectively, is described. The key finding is a Bronsted acid/halide ion bifunctional catalyst that can accelerate epoxide ring opening with high regioselectivity. Mechanistic studies disclosed that the ylide generated from TAPS, along with the formation of halohydrins, plays a crucial role in the reaction with isocyanates. PMID- 29039957 TI - Directed Zincation or Magnesiation of the 2-Pyridone and 2,7-Naphthyridone Scaffold Using TMP Bases. AB - A regioselective zincation of the 2-pyridone and 2,7-naphthyridone scaffolds has been developed. Zincations of the methoxyethoxymethyl (MEM)-protected compounds using TMP2Zn.2MgCl2.2LiCl (TMP = 2,2,6,6-tetramethylpiperidyl) followed by trapping with electrophiles provided functionalized 2-pyridones and 2,7 naphthyridones. I/Mg exchange of iodinated 2-pyridone and 2,7-naphthyridone using i-PrMgCl.LiCl afforded magnesiated intermediates that reacted with electrophiles. A second magnesiation of the 2-pyridone scaffold was achieved by using TMPMgCl.LiCl. Additionally, we report CoCl2-catalyzed cross-couplings of the 1 chloro-2,7-naphthyridines with arylzinc halides. PMID- 29039958 TI - Manginoids A-G: Seven Monoterpene-Shikimate-Conjugated Meroterpenoids with a Spiro Ring System from Guignardia mangiferae. AB - Manginoids A-G (1-7), seven monoterpene-shikimate-conjugated meroterpenoids with a spiro ring system, were isolated from Guignardia mangiferae. Compounds 1-4 are four isomers with epimeric and double-bond isomeric features possessing a 6 oxaspiro[bicyclo[3.2.1]octane-3,5'-indene] ring, which represent the first examples of spiro meroterpenoids bearing a bridged spirocyclohexanedione moiety. Compounds 5 and 6 possess an unexpected 2,4-dioxatricyclo[3.3.1.03,7]nonane motif, which fuses with a 6-oxabicyclo[3.2.1]octane moiety. Compound 1 exhibits inhibitory activities against 11beta-hydroxysteroid dehydrogenase type 1 with an IC50 value of 0.84 MUM. PMID- 29039959 TI - Preparation of 1,2-Oxazetidines from Styrenes and Arylamines via a Peroxide Mediated [2 + 1 + 1] Cycloaddition Reaction. AB - The first regioselective synthesis of polysubstituted 1,2-oxazetidines, based on the [2 + 1 + 1] radical tandem cycloaddition of styrenes, arylamines, and tert butyl hydroperoxide (TBHP), is described. This simple and direct method allows the synthesis of 1,2-oxazetidines with a broad substrate scope from easily accessible materials. TBHP was employed in this conversion not only as the oxidant but also as the source of "O" for the carbonyl group in the products. PMID- 29039960 TI - Exciton-Coupled Electron Transfer Process Controlled by Non-Markovian Environments. AB - We theoretically investigate an exciton-coupled electron transfer (XCET) process that is conversion of an exciton into a charge transfer state. This conversion happens in an exciton transfer (XT) process, and the electron moves away in an electron transfer (ET) process in multiple environments (baths). This XCET process plays an essential role in the harvesting of solar energy in biological and photovoltaic materials. We develop a practical theoretical model to study the efficiency of the XCET process that occurs either in consecutive or concerted processes under the influence of non-Markovian baths. The role of quantum coherence in the XT-ET system and the baths is investigated using reduced hierarchal equations of motion (HEOM). This model includes independent baths for each XT and ET state, in addition to a XCET bath for the conversion process. We found that, while quantum system-bath coherence is important in the XT and ET processes, coherence between the XT and ET processes must be suppressed in order to realize that an efficient irreversible XCET process through the weak off diagonal interaction between the XT and ET bridge sites arises from an XCET bath. PMID- 29039961 TI - Symmetry and Structure of Cubic Semiconductor Surfaces. AB - A systematic stereographic approach to the description of surface symmetry and structure, applied previously to face-centered cubic, body-centered cubic, and hexagonal close-packed metals, is here extended to the surfaces of diamond structure and zinc-blende-structure semiconductors. A variety of symmetry structure combinations are categorized and the chiral properties of certain cases emphasized. A general condition for nonpolarity in the surfaces of zincblende materials is also noted. PMID- 29039963 TI - Simplified "No-D" NMR Methods for Routine Analysis and Organometallic Reagent Concentration Determination. AB - The use of tetrachloroethylene spiked with tetramethylsilane as a solvent for routine NMR analysis has been evaluated. Excellent quality spectra are reliably obtained, comparable to samples run in chloroform-d. Validation of this method is presented, together with the spectral data of commonly encountered trace impurities. In addition, NMR analysis for the concentration determination of organometallic reagents has been simplified using double-walled NMR tubes using a calibrated external reference solution within a hermetically sealed chamber. PMID- 29039962 TI - An Epoxide-Mediated Deprotection Method for Acidic Amide Auxiliary. AB - A practical method for the removal of a versatile acidic amide auxiliary has been developed. Facile alcoholysis of the amide in the presence of KOAc is enabled by an epoxide, which mechanistically resembles the removal of the Myers' auxiliary. The protocol has been applied to the removal of a variety of amide substrates and their C-H functionalization products with high efficiency and low cost, representing a step forward toward the development of a versatile directing group for C-H activation. PMID- 29039964 TI - Probing Linewidths and Biexciton Quantum Yields of Single Cesium Lead Halide Nanocrystals in Solution. AB - Cesium lead halide (CsPbX3, X = Cl, Br, I) perovskite nanocrystals (PNCs) have recently become a promising material for optoelectronic applications due to their high emission quantum yields and facile band gap tunability via both halide composition and size. The spectroscopy of single PNCs enhances our understanding of the effect of confinement on excitations in PNCs in the absence of obfuscating ensemble averaging and can also inform synthetic efforts. However, single PNC studies have been hampered by poor PNC photostability under confocal excitation, precluding interrogation of all but the most stable PNCs, and leading to a lack of understanding of PNCs in the regime of high confinement. Here, we report the first comprehensive spectroscopic investigation of single PNC properties using solution-phase photon-correlation methods, including both highly confined and blue-emitting PNCs, previously inaccessible to single NC techniques. With minimally perturbative solution-phase photon-correlation Fourier spectroscopy (s PCFS), we establish that the ensemble emission linewidth of PNCs of all sizes and compositions is predominantly determined by the intrinsic single PNC linewidth (homogeneous broadening). The single PNC linewidth, in turn, dramatically increases with increasing confinement, consistent with what has been found for II VI semiconductor nanocrystals. With solution-phase photon antibunching measurements, we survey the biexciton-to-exciton quantum yield ratio (BX/X QY) in the absence of user-selection bias or photodegradation. Remarkably, the BX/X QY ratio depends both on the PNC size and halide composition, with values between ~2% for highly confined bromide PNCs and ~50% for intermediately confined iodide PNCs. Our results suggest a wide range of underlying Auger rates, likely due to transitory charge carrier separation in PNCs with relaxed confinement. PMID- 29039965 TI - Scanning electron microscope comparative surface evaluation of glazed-lithium disilicate ceramics under different irradiation settings of Nd:YAG and Er:YAG lasers. AB - OBJECTIVE: To evaluate the surface of glazed lithium disilicate dental ceramics after irradiation under different irradiation settings of Nd:YAG and Er:YAG lasers using a scanning electron microscope (SEM). MATERIALS AND METHODS: Three glazed-press lithium disilicate ceramic discs were treated with HF, Er:YAG, and Nd:YAG, respectively. The laser-setting variables tested were laser mode, repetition rate (Hz), power (W), time of exposure (seconds), and laser energy (mJ). Sixteen different variable settings were tested for each laser type, and all the samples were analyzed by SEM at 500* and 1000* magnification. RESULTS: Surface analysis of the HF-treated sample showed a typical surface texture with a homogenously rough pattern and exposed ceramic crystals. Er:YAG showed no effect on the surface under any irradiation setting. The surface of Nd:YAG-irradiated samples showed cracking, melting, and resolidifying of the ceramic glaze. These changes became more pronounced as the power increased. At the highest power setting (2.25 W), craters on the surface with large areas of melted or resolidified glaze surrounded by globules were visible. However, there was little to no exposure of ceramic crystals or visible regular surface roughening. CONCLUSIONS: Neither Er:YAG nor Nd:YAG dental lasers exhibited adequate surface modification for bonding of orthodontic brackets on glazed lithium disilicate ceramics compared with the control treated with 9.5% HF. PMID- 29039966 TI - The Academy of Breastfeeding Medicine's Recent Past and Near Future. PMID- 29039967 TI - Central obesity and the Mediterranean diet: A systematic review of intervention trials. AB - Central obesity is associated with chronic low-grade inflammation, and is a risk factor for cardiometabolic syndrome. The Mediterranean diet pattern has a convincing evidence-base for improving cardiometabolic health. This review investigated the impact of Mediterranean diet interventions on central obesity, specifically. A systematic literature search was conducted in the MEDLINE, CINAHL, EMBASE and Cochrane library databases. Search terms included: 'Mediterranean Diet', 'Mediterranean dietary pattern', 'central obesity' and 'visceral fat'. The search was limited to English language and humans >=18 years. Eighteen articles met the eligibility criteria and reported at least one outcome measure of central obesity with Mediterranean diet intervention. Central obesity measures included waist circumference (16 studies), waist-hip ratio (5 studies) and visceral fat (2 studies). Thirteen (72%) of the studies, totaling 7186 subjects (5168 subjects assigned to a Mediterranean Diet), reported a significant reduction in central obesity with a Mediterranean-type diet. However, seven out of these 13 interventions employed energy restriction, and only three showed a statistically significant favorable effect of the Mediterranean diet relative to a control group. This systematic review highlights the potential for a Mediterranean diet intervention to reduce central obesity and in turn reduce obesity-related chronic disease risk and associated public health burden. PMID- 29039968 TI - Characteristics, Biological Properties and Analytical Methods of Ursolic Acid: A Review. AB - Ursolic acid (UA) is a naturally occurring triterpenoid which is a promising candidate for the development of new therapeutic approaches and for the prevention and treatment of several diseases owing to its pharmacological importance. However, its low solubility in aqueous medium affects its therapeutic application. Several strategies have been used to overcome this obstacle. In this study, the incorporation of UA in to different drug delivery systems was found to be highly efficient. In addition, important investigations were performed about methods for qualitative and quantitative analyses of UA in various raw materials, including plants, biological fluids, and drug delivery systems, were investigated. Most recently high performance liquid chromatography coupled with various detectors, gas chromatography-mass spectrometry and capillary electrophoresis were used for this purpose. Thus, this review was performed to evaluate the biological effects of UA demonstrated thus far as well as the currently used, delivery systems and analytical methods. PMID- 29039969 TI - Clinical Outcomes and Failure Rates of Osteochondral Allograft Transplantation in the Knee: A Systematic Review. AB - BACKGROUND:: Cartilage lesions are a significant cause of morbidity and impaired knee function; however, cartilage repair procedures have failed to reproduce native cartilage to date. Thus, osteochondral allograft (OCA) transplantation represents a 1-step procedure to repair large chondral defects without the donor site morbidity of osteochondral autograft transplantation. PURPOSE:: To perform a systematic review of clinical outcomes and failure rates after OCA transplantation in the knee at a minimum mean 2 years' follow-up. STUDY DESIGN:: Systematic review; Level of evidence, 4. METHODS:: A systematic review of the literature regarding the existing evidence for clinical outcomes and failure rates of OCA transplantation in the knee joint was performed using the Cochrane Database of Systematic Reviews, the Cochrane Central Register of Controlled Trials, PubMed, and MEDLINE from studies published between 1980 and 2017. Inclusion criteria were as follows: clinical outcomes and failure rates of OCAs for the treatment of chondral defects in the knee joint, English language, mean follow-up of 2 years and minimum follow-up of 18 months, minimum study size of 20 patients, and human studies. The methodological quality of each study was assessed using a modified version of the Coleman methodology score. RESULTS:: The systematic search identified 19 studies with a total of 1036 patients. The mean 5 year survival rate across the studies included in this review was 86.7% (range, 64.1%-100.0%), while the mean 10-year survival rate was 78.7% (range, 39.0% 93.0%). The mean survival rate was 72.8% at 15 years (range, 55.8%-84.0%) and 67.5% at 20 years (range, 66.0%-69.0%). The weighted mean patient age was 31.5 years (range, 10-82 years), and the weighted mean follow-up was 8.7 years (range, 2-32 years). The following outcome measures showed significant improvement from preoperatively to postoperatively: d'Aubigne-Postel, International Knee Documentation Committee, Knee Society function, and Lysholm scores. The weighted mean reoperation rate was 30.2% (range, 0%-63%). The weighted mean failure rate was 18.2% (range, 0%-31%). Of note, revision cases, patellar lesions, and bipolar lesions demonstrated worse survival rates. CONCLUSION:: Improved patient-reported outcomes can be expected after OCA transplantation, with a survival rate of 78.7% at 10 years. Revision cases, patellar lesions, and bipolar lesions were associated with worse survival rates; therefore, utilization of the most appropriate index cartilage restoration procedure and proper patient selection are key to improving results. PMID- 29039970 TI - Food groups and risk of coronary heart disease, stroke and heart failure: A systematic review and dose-response meta-analysis of prospective studies. AB - BACKGROUND: Despite growing evidence for food-based dietary patterns' potential to reduce cardiovascular disease risk, knowledge about the amounts of food associated with the greatest change in risk of specific cardiovascular outcomes and about the quality of meta-evidence is limited. Therefore, the aim of this meta-analysis was to synthesize the knowledge about the relation between intake of 12 major food groups (whole grains, refined grains, vegetables, fruits, nuts, legumes, eggs, dairy, fish, red meat, processed meat, and sugar-sweetened beverages [SSB]) and the risk of coronary heart disease (CHD), stroke and heart failure (HF). METHODS: We conducted a systematic search in PubMed and Embase up to March 2017 for prospective studies. Summary risk ratios (RRs) and 95% confidence intervals (95% CI) were estimated using a random effects model for highest versus lowest intake categories, as well as for linear and non-linear relationships. RESULTS: Overall, 123 reports were included in the meta-analyses. An inverse association was present for whole grains (RRCHD: 0.95 (95% CI: 0.92 0.98), RRHF: 0.96 (0.95-0.97)), vegetables and fruits (RRCHD: 0.97 (0.96-0.99), and 0.94 (0.90-0.97); RRstroke: 0.92 (0.86-0.98), and 0.90 (0.84-0.97)), nuts (RRCHD: 0.67 (0.43-1.05)), and fish consumption (RRCHD: 0.88 (0.79-0.99), RRstroke: 0.86 (0.75-0.99), and RRHF: 0.80 (0.67-0.95)), while a positive association was present for egg (RRHF: 1.16 (1.03-1.31)), red meat (RRCHD: 1.15 (1.08-1.23), RRstroke: 1.12 (1.06-1.17), RRHF: 1.08 (1.02-1.14)), processed meat (RRCHD: 1.27 (1.09-1.49), RRstroke: 1.17 (1.02-1.34), RRHF: 1.12 (1.05-1.19)), and SSB consumption (RRCHD: 1.17 (1.11-1.23), RRstroke: 1.07 (1.02-1.12), RRHF: 1.08 (1.05-1.12)) in the linear dose-response meta-analysis. There were clear indications for non-linear dose-response relationships between whole grains, fruits, nuts, dairy, and red meat and CHD. CONCLUSION: An optimal intake of whole grains, vegetables, fruits, nuts, legumes, dairy, fish, red and processed meat, eggs and SSB showed an important lower risk of CHD, stroke, and HF. PMID- 29039971 TI - Genome-Wide Analysis of the Transcription Start Sites and Promoter Motifs of Phytoplasmas. AB - Phytoplasmas are obligate intracellular parasitic bacteria that infect both plants and insects. We previously identified the sigma factor RpoD-dependent consensus promoter sequence of phytoplasma. However, the genome-wide landscape of RNA transcripts, including non-coding RNAs (ncRNAs) and RpoD-independent promoter elements, was still unknown. In this study, we performed an improved RNA sequencing analysis for genome-wide identification of the transcription start sites (TSSs) and the consensus promoter sequences. We constructed cDNA libraries using a random adenine/thymine hexamer primer, in addition to a conventional random hexamer primer, for efficient sequencing of 5'-termini of AT-rich phytoplasma RNAs. We identified 231 TSSs, which were classified into four categories: mRNA TSSs, internal sense TSSs, antisense TSSs (asTSSs), and orphan TSSs (oTSSs). The presence of asTSSs and oTSSs indicated the genome-wide transcription of ncRNAs, which might act as regulatory ncRNAs in phytoplasmas. This is the first description of genome-wide phytoplasma ncRNAs. Using a de novo motif discovery program, we identified two consensus motif sequences located upstream of the TSSs. While one was almost identical to the RpoD-dependent consensus promoter sequence, the other was an unidentified novel motif, which might be recognized by another transcription initiation factor. These findings are valuable for understanding the regulatory mechanism of phytoplasma gene expression. PMID- 29039972 TI - Targeted identification of adverse events in coronary artery disease patients based on patient-reported outcomes. AB - AIM: Can focusing the adverse events search to patients with poor patient reported outcome help in targeting adverse event detection? PATIENTS & METHODS: Coronary artery revascularization patients of the Kuopio University Hospital from June 2012 to August 2014 categorized into those with clinically significant improvement (15D score change >=0.015, n = 81) or deterioration (change >=-0.015, n = 64) in post-intervention health-related quality of life. RESULTS: Major complications (27 vs 9%, p = 0.004) or post-intervention infections (16 vs 5%, p = 0.031) were more common among those with deteriorated score. They also tended to have more cardiovascular (19 vs 9%, p = 0.071) and minor complications (16 vs 7%, p = 0.118). CONCLUSION: Patient-reported outcomes may potentially help in targeting the adverse events search so that a larger number of adverse events can be identified for efficient learning from them. PMID- 29039973 TI - Amendment of vanadium-contaminated soil with soil conditioners: A study based on pot experiments with canola plants (Brassica campestris L.). AB - We performed pot experiments with canola plants (Brassica campestris L.) to evaluate the effect of eight soil conditioners on the amendment of vanadium (V) contaminated soil based on analysis of the growth of canola plants and the uptake, bioaccumulation, and translocation of heavy metals. Tested soil conditioners included polyacrylamide (PAM), sepiolite, humic acid (HAC), peat, sludge compost (SC), bentonite, lime, and fly ash. Results from the analysis of the growth of canola plants and the analysis of variance showed that the best soil conditioners for V-contaminated soil were 0.05-0.1 wt% PAM, 1 wt% peat, 1 wt% HAC, and 1 wt% SC; moderately effective soil conditioners included sepiolite and lime. The best combination of soil conditioners was 0.1 wt% PAM, 1 wt% HAC, and 0.15 wt% lime, in addition of 1% ZVI, which increased the biomass and height of canola plants by 1.18-fold and 59.49%, respectively. We conclude that the best combination of soil conditioners determined from this study is promising for mitigating V contamination in soil. PMID- 29039974 TI - Role of kidney biomarkers [Kidney injury molecule-1, Calbindin, Interleukin-18 and Monocyte chemoattractant protein-1] in HIV associated pre-eclampsia. AB - OBJECTIVE: Both HIV infection and pre-eclampsia (PE) are associated with considerable maternal mortality in South Africa. This study was designed to compare the urinary levels of kidney injury molecule-1 (KIM-1), calbindin, interleukin-18 (IL-18), and monocyte chemoattractant protein-1 (MCP-1) in HIV associated normotensive and preeclamptic pregnancies. METHODS: Following ethical approval and written consent, urine samples were collected from HIV negative (HIV -ve) normotensive pregnant (n = 19), HIV positive (HIV +ve) normotensive pregnant (n = 19), HIV -ve pre-eclamptic (n = 19) and HIV +ve pre-eclamptic (n = 19) women. The concentrations of KIM-1, calbindin, IL-18 and MCP-1 were assessed using the Bioplex technology. RESULTS: In contrast to IL-18 (p > 0.05) and MCP-1 (p > 0.05), the concentrations of KIM-1 (p = 0.02) and calbindin (p = 0.02) were significantly higher in PE compared to normotensive pregnancies, irrespective of HIV status. Based on HIV status, all 4 analytes were similar between HIV+ve and HIV-ve groups. Urinary KIM-1 levels in the HIV -ve pre-eclamptics were significantly higher than those in the HIV -ve women with normal pregnancies (p = 0.007). The maternal hypertension and/or HIV profile has no marked impact on the fetal weight. CONCLUSION: Our results demonstrate an increase in the urinary level of kidney injury molecule-1 and calbindin in PE, implicating their possible value as biomarkers of kidney injury. We observed no differences in the levels of KIM-1, IL-18, MCP-1 and calbindin based on HIV status. We propose that studies with larger sample sizes using these markers be conducted to establish their use as markers of diagnosing kidney injury in PE. PMID- 29039975 TI - Maternal and cord blood cyclophilin A in severe preeclampsia and normal pregnancy and its correlation with vitamin D and zinc. AB - OBJECTIVE: To investigate maternal and cord blood cyclophilin A level in severe preeclampsia compared with normal pregnancy and its correlation with vitamin D and zinc level. METHODS: We conducted a cross-sectional observational study of pregnant women who gave birth in Cipto Mangunkusumo Hospital between January and April 2014. RESULTS: Thirty-nine subjects were included. Subjects with severe preeclampsia have higher serum cyclophilin A levels compared with normotensive pregnancy (1299.60 vs. 1039.50; p 0.017). Maternal cyclophilin A, vitamin D, and zinc correlation were not statistically significant (p 0.189 & p 0.853). CONCLUSION: Cyclophilin A levels in severe preeclampsia is higher compared to normal pregnancy. There is no correlation between cyclophilin A, zinc, and vitamin D. PMID- 29039976 TI - Challenges and recommendations for the health-economic evaluation of primary prevention programmes for dementia. AB - OBJECTIVE: We aimed to review health-economic evaluations of (hypothetical) intervention programmes for the primary prevention of dementia, and highlight challenges and provide recommendations for future research to estimate its cost effectiveness. METHODS: We searched the databases PubMed, MODEM, CEA and NHS for publications on the cost-consequence, -effectiveness, -utility or -benefit analysis of (hypothetical) interventions to reduce the risk of developing dementia for persons without dementia, and described the study characteristics. RESULTS: Three publications described the evaluation of a hypothetical risk reduction due to physical activity or a multidomain intervention programme. Two studies reported a reduction of care costs. One study yielded two scenarios of increased care costs and one scenario of reduced care costs. Only one study reported the impact in QALY terms, and found a QALY gain. CONCLUSION: A few studies have evaluated a hypothetical multidomain prevention intervention, and reported that primary dementia prevention is potentially cost-saving or cost effective. Various challenges remain to evaluate the health-economic impact of prevention interventions, including extrapolation of short-term trial effects, care costs in the dementia-free and life years gained, and accurate representation of usual care. We recommend extensive sensitivity analyses to examine the impact of assumptions regarding these aspects on the outcomes of cost effectiveness studies. PMID- 29039977 TI - Chronic disruptions of circadian sleep regulation induce specific proinflammatory responses in the rat colon. AB - : Exposure to environmental conditions that disturb the daily rhythms has been shown to enhance the proinflammatory responses of immunostimulant-challenged immune system. However, it is not known whether circadian disturbances may stimulate unchallenged immune responses and thus contribute per se to the development of inflammation-related diseases. Our aim was to ascertain an effect of various conditions threatening the behavioral activity/rest cycle regulation, namely aging with or without melatonin, 6 h advance/delay phase shifts in the light/dark cycle repeated with a 2-day frequency and constant light, on expression of immune markers in the rat colon. The impact of these conditions on parameters of behavioral activity and mRNA levels of selected immune markers in the colonic mucosa of Wistar rats, namely TNFalpha (Tnf), IL1a (Il1a), IL17RA (Il17ra), STAT3 (Stat3) and Rgs16 (Rsg16), were detected. Our results demonstrate that aging with or without melatonin as well as repeated 6 h advance/delay phase shifts in the light/dark cycle, which increased inactivity as a correlate of sleep during the dark phase of the light/dark cycle (i.e. during the active phase for nocturnal animals), had a minor effect on immune state in the colonic mucosa; all these conditions caused downregulation of gene Rgs16 which is involved in attenuation of the inflammatory response in the colon but did not affect expression of the other immune markers. Interestingly, a long-term absence of melatonin facilitated the aging-induced effect on immune state in the colon. In contrast, exposure to constant light, which perturbed the interval of inactivity (sleep) and led to the complete abolishment of activity/inactivity cycles, activated robustly proinflammatory state in the colon selectively via Stat3 dependent pathway. In spite all these experimental conditions (aging with or without melatonin, shifts in light/dark cycles, constant light) perturbed the activity/rest cycles, none of them induced sleep deprivation. These results provided the first evidence that disruptions in the behavioral activity/inactivity cycles may spontaneously (without immuno-stimulant) induce selective proinflammatory responses in the colonic mucosa. Such effects may take part in the mechanisms of modern lifestyle-induced inflammatory diseases of the gut. ABBREVIATIONS: B2M: beta2-microglobulin; DSS: dextran sodium sulfate; Gapdh: glyceraldehyde-3-phosphate dehydrogenase; Ifng: interferon g; Il1a: interleukin 1a; Il1b: interleukin 1b; Il2: interleukin 2; Il6: interleukin 6; Il17ra: interleukin 17 receptor a; LD: light/dark cycle; LL: constant light; LPS: lipopolysaccharide; Mntr1a: melatonin receptor 1a; PINX: pinealectomy; Rgs16: regulator of G protein signaling 16; RT qPCR: quantitative reverse transcription polymerase chain reaction; Stat3: signal transducer and activator of transcription 3; Th17: type 17 T helper cells; Tnfalpha: tumor necrosis factor alpha; Tnfrsf1b: tumor necrosis factor receptor superfamily member 1b. PMID- 29039978 TI - Preimplantation genetic testing: current challenges and future prospects. AB - INTRODUCTION: Preimplantation genetic testing (PGT) is now a widely applied procedure in genetic practices and ART, with more than one third of ART Centers in US already utilizing PGT technology. Its indications have also been significantly extended to include common late-onset disorders and non-genetic conditions, such as testing for HLA match. Areas covered: This is a critical review of the developments in PGT, with emphasis on their outstanding limitations and directions for the future research and practice in the area of PGT. Expert commentary: The application of the new higher resolution PGT technologies has led to the identification of genetic variations, the biological and clinical importance of which is not sufficiently understood. It is obvious that the current selection process of embryos with the highest developmental potential requires a further improvement, as significant proportion of transferred euploid embryos still fail to result in an ongoing clinical pregnancy. More research will be needed to upgrade PGT for different conditions into a single universal test in the same biopsy material. To avoid a potential damage of embryo biopsy procedures, one of the important challenges will be the development of non invasive approaches to PGT. PMID- 29039979 TI - Single-Dose Pharmacokinetics of HLD200, a Delayed-Release and Extended-Release Methylphenidate Formulation, in Healthy Adults and in Adolescents and Children with Attention-Deficit/Hyperactivity Disorder. AB - OBJECTIVE: Current extended-release (ER) formulations of psychostimulants used for treatment of attention-deficit/hyperactivity disorder (ADHD) provide an extended duration of ADHD symptom control; however, the onset of efficacy can be protracted and variable, leaving the early morning untreated. The primary objective was to characterize the single-dose pharmacokinetics and tolerability of HLD200, an evening-dosed, delayed-release (DR) and ER formulation of methylphenidate (MPH), in healthy adults and in adolescents and children with ADHD. METHODS: The pharmacokinetics and tolerability of a single, oral evening dose of HLD200 (54 mg) were evaluated in two single-center open-label studies: the first in healthy adults (n = 12) and the second in adolescents (n = 18) and children (n = 11) with ADHD. Primary pharmacokinetic endpoints were the rate and extent of MPH absorption (Cmax and area under the curve [AUC]) and time to peak concentration (Tmax). These parameters were calculated using noncompartmental analysis. RESULTS: HLD200 produced a pharmacokinetic profile characterized by an 8- to 10-hour delay in MPH release, followed by a period of extended controlled release, resulting in an ascending absorption profile that coincided with the early morning and afternoon. Mean values (coefficient of variation [CV]%) of weight-adjusted pharmacokinetic parameters were similar in adults and in adolescents and children with ADHD: Cmax ([ng/mL]/[mg/kg]) was 9.1 (35.2), 8.8 (34.5), and 7.4 (30.1); AUC0-t ([ng . h/mL]/[mg/kg]) was 126.5 (35.5), 129.4 (34.8), and 129.7 (27.3); and Tmax (hours) was 15.6 (11.1), 17.1 (14.5), and 17.7 (14.1), respectively. Intersubject variability in the mean time to achieve ascending plasma MPH concentrations of 2, 3, 4, and 5 ng/mL was low (CV: 7.8% 17.7%). CONCLUSIONS: Evening-dosed HLD200 produces the intended DR and ER pharmacokinetic profile that provides a consistent predictable delay in initial MPH release until the early morning, followed by extended release across the day. The body weight-adjusted pharmacokinetics of HLD200 were similar between adults and adolescents and children with ADHD. PMID- 29039981 TI - Calcitriol, the Active Metabolite of Vitamin D3, Inhibits Dry Eye Related Corneal Inflammation In Vivo and In Vitro. AB - PURPOSE: To examine the influence of topical administration of calcitriol on dry eye (DE) related corneal inflammation. METHODS: Benzalkonium chloride (BAC, 0.2%) was applied to induce DE. Then rats were treated topically with calcitriol (10 6MUM). Tear break-up time (TBUT), fluorescein staining score, inflammatory index, and tear volume were measured. Corneal epithelium damage and corneal inflammation were examined by H&E staining or RT-qPCR. In vitro, human corneal epithelial cells (iHCEC) were cultured in hyperosmotic medium (450 mOsM) with various concentrations of calcitriol. Levels of pro-inflammatory mediators were measured by RT-qPCR or ELISA. NF-kappaB activation was examined by Western blotting and immunofluorescence staining. RESULTS: Calcitriol significantly ameliorated DE symptoms, attenuating corneal inflammation. In vitro studies showed that calcitriol significantly decreased the expression of pro-inflammatory mediators in iHCECs under hyperosmotic stress, probably through inhibiting NF-kappaB activation. CONCLUSION: The results suggest that calcitriol might be a potential therapeutic agent for DE. PMID- 29039980 TI - Advances in the Chromosome-Centric Human Proteome Project: looking to the future. AB - INTRODUCTION: The mission of the Chromosome-Centric Human Proteome Project (C HPP), is to map and annotate the entire predicted human protein set (~20,000 proteins) encoded by each chromosome. The initial steps of the project are focused on 'missing proteins (MPs)', which lacked documented evidence for existence at protein level. In addition to remaining 2,579 MPs, we also target those annotated proteins having unknown functions, uPE1 proteins, alternative splice isoforms and post-translational modifications. We also consider how to investigate various protein functions involved in cis-regulatory phenomena, amplicons lncRNAs and smORFs. Areas covered: We will cover the scope, historic background, progress, challenges and future prospects of C-HPP. This review also addresses the question of how we can best improve the methodological approaches, select the optimal biological samples, and recommend stringent protocols for the identification and characterization of MPs. A new strategy for functional analysis of some of those annotated proteins having unknown function will also be discussed. Expert commentary: If the project moves well by reshaping the original goals, the current working modules and team work in the proposed extended planning period, it is anticipated that a progressively more detailed draft of an accurate chromosome-based proteome map will become available with functional information. PMID- 29039982 TI - Botryomycosis: A surprising revelation in the lacrimal sac. AB - A middle aged woman presented to us with a localised well defined swelling of 3 months duration. It was located just below the lower eyelid punctum and was constantly discharging whitish granules. We suspected it to be arising from the lacrimal apparatus and posted the patient for Dacryocystectomy. On the operating table we found a swelling in the region of the lacrimal sac which was later excised. Histopathology revealed Botryomycosis and Chronic Dacryocystitis. Botryomycosis is a rare condition and requires a high index of suspicion to diagnose it. It is confirmed by histopathology and culture. Surgical debridement is the treatment of choice in such cases with an assessment of the immune status. Long term antibiotic treatment is required in all conditions as recurrence is common. PMID- 29039983 TI - Potential Information Loss Due to Categorization of Minimum Inhibitory Concentration Frequency Distributions. AB - A bacterial isolate's susceptibility to antimicrobial is expressed as the lowest drug concentration inhibiting its visible growth, termed minimum inhibitory concentration (MIC). The susceptibilities of isolates from a host population at a particular time vary, with isolates with specific MICs present at different frequencies. Currently, for either clinical or monitoring purposes, an isolate is most often categorized as Susceptible, Intermediate, or Resistant to the antimicrobial by comparing its MIC to a breakpoint value. Such data categorizations are known in statistics to cause information loss compared to analyzing the underlying frequency distributions. The U.S. National Antimicrobial Resistance Monitoring System (NARMS) includes foodborne bacteria at the food animal processing and retail product points. The breakpoints used to interpret the MIC values for foodborne bacteria are those relevant to clinical treatments by the antimicrobials in humans in whom the isolates were to cause infection. However, conceptually different objectives arise when inference is sought concerning changes in susceptibility/resistance across isolates of a bacterial species in host populations among different sampling points or times. For the NARMS 1996-2013 data for animal processing and retail, we determined the fraction of comparisons of susceptibility/resistance to 44 antimicrobial drugs of twelve classes of a bacterial species in a given animal host or product population where there was a significant change in the MIC frequency distributions between consecutive years or the two sampling points, while the categorization-based analyses concluded no change. The categorization-based analyses missed significant changes in 54% of the year-to-year comparisons and in 71% of the slaughter-to-retail within-year comparisons. Hence, analyses using the breakpoint based categorizations of the MIC data may miss significant developments in the resistance distributions between the sampling points or times. Methods considering the MIC frequency distributions in their entirety may be superior for epidemiological analyses of resistance dynamics in populations. PMID- 29039984 TI - Financial Barriers and Lapses in Treatment and Care of HIV-Infected Adults in a Southern State in the United States. AB - Antiretroviral (ARV) adherence has largely been considered from the perspective of an individual's behavior with less attention given to potential structural causes for lapses in treatment, such as the cost of medications and care. HIV medication expense is typically covered by third party payers. However, private insurance premiums and deductibles may rise, or policies terminated such as with a change in employment. Likewise, a patient's eligibility for publicly funded coverage like state AIDS Drug Assistance Programs (ADAP) or Medicaid can also be lost. We conducted a one-time survey of a sample of 300 patients receiving HIV care at a single large academic center in the south of United States to examine lapses in HIV therapy due to financial reasons. We found that during the prior year, financial issues including medication cost or coverage led to a lapse in ARVs in 10% (n = 31) of participants. However, of the 42% (n = 125) participants who had been enrolled in ADAP at any time during the prior year, 21% (n = 26) reported an ARV lapse due to problems with ADAP or medication cost. Respondents cited ADAP's required semi-annual renewal process and other administrative issues as the cause of ARV lapses. The median duration of missed ARVs was 2 weeks (range of <1-23 weeks). Non-HIV medication and transportation to and from clinic costs were also identified as financial burdens to care by respondents. In conclusion, although conducted at a single medical center and one state, this study suggests that a significant minority of HIV-infected patients encounter financial barriers to ARV access, and this is paradoxically more common among those enrolled in the state ADAP. Streamlining, supporting, and simplifying ADAP renewal procedures will likely reduce lapses in ARV adherence and persistence. PMID- 29039985 TI - Radiofrequency surgery: 3500 years old and still young. AB - PURPOSE: To review the history of Radiofrequency surgery, delineate the actual situation and describe the applications in eyelid surgery. DESIGN: Review. METHODS: Review of literature, personal communication with several pioneers in the field, and own experience. CONCLUSION: Radiofrequency surgery has evolved from rude burning to a sophisticated surgical technique. PMID- 29039986 TI - Orbital exenteration: Institutional review of evolving trends in indications and rehabilitation techniques. AB - PURPOSE: To determine the changes in indications for orbital exenteration over 20 years and to assess its impact on patient survival. Evolving techniques of rehabilitation of the orbit in our institution were also evaluated. METHODS: This was a retrospective review of hospital records of patients who underwent orbital exenteration from 1995 to 2015 in a tertiary care center. Data extracted included primary location of the tumor, preoperative treatments, interval between initial diagnosis and exenteration, status of surgical margins, presence of metastatic disease, and postoperative survival. The types of prosthesis utilized over the years were also reviewed. Cox regression analysis was performed for categorical variables. Kaplan-Meier analysis was used to estimate post-exenteration survival. RESULTS: Over a 20-year period, orbital exenteration was performed on 100 orbits of 100 patients. The mean age was 39.4 years (range: 2 months to 90 years). The most common indications among 98 malignant causes were retinoblastoma, squamous cell carcinoma, basal cell carcinoma, extraocular extension of uveal melanoma, and conjunctival melanoma. Postoperative survival was significantly related to age and tumor location but independent from gender, surgical margin, histopathological diagnosis, previous treatment modality, and preoperative interval. In the whole cohort, 1-year and 5-year survival rates were 97% and 84%, respectively. CONCLUSIONS: Exenteration appears to be life-saving in children with orbital extension of retinoblastoma. While patients exenterated for malignant eyelid tumors have the best chance of survival, those with orbital extension of uveal melanoma and adenoid cystic carcinoma of the lacrimal gland have the worst prognosis. PMID- 29039987 TI - A Propensity Score-Based Analysis of Laparoscopic Liver Resection for Liver Malignancies in Elderly Patients. AB - PURPOSE: Laparoscopic liver resection is safe, feasible and associated with less blood loss, shorter hospital stays and fewer postoperative complications in the working age patients with malignant liver tumors. However, it is still unclear if the elderly patients with malignant liver tumors would also benefit from that approach as the younger patients. So, the aim of the study was to compare the clinical outcomes of laparoscopic versus open liver resection for malignant liver tumors in elderly patients. MATERIALS AND METHODS: Between March 2009 and July 2016, all elderly patients (>=70 years old) who underwent laparoscopic (n = 40) and open (n = 202) liver resection for malignant liver tumors were included. A one to one propensity score matching analysis was performed, based on 6 covariates, to decrease the selection bias. RESULTS: There was no significant difference between the laparoscopic and open liver resection groups regarding the patient characteristics and tumor features. The operative time was comparable between both groups (Laparoscopic group 259 min vs Open group 308 min, p = .86), while patients who underwent laparoscopic liver resection had lower intraoperative blood loss (30 ml vs 517 ml, p < .0001), shorter hospital stays (10 days vs 23 days, p < .0001), and less overall morbidity (15% vs 38%, p = .04). The one-, three-, and five-year survival for patients with hepatocellular carcinoma was comparable between both groups (Laparoscopic group 96%, 74%, 47%, vs Open group 94%, 71%, 48%, p = .82), whereas The one-, three-, and five-year recurrence-free survival for patients with hepatocellular carcinoma was significantly higher in the laparoscopic group (88%, 60%, 60% vs 54%, 25%, 19%, p = .019). CONCLUSIONS: Laparoscopic approach for minor liver resection in elderly patients is safe and feasible with less blood loss, a shorter hospital stay, less postoperative complications and a better oncological outcome. PMID- 29039988 TI - The intraoperative use of polydioxanone foil to reduce the risk of sino-orbital fistula formation in orbital exenteration. AB - BACKGROUND: Orbital exenteration is a radical surgical procedure resulting in deformity. It involves removal of the globe, optic nerve, extra-ocular muscles, orbital fat, lacrimal gland, and peri-osteum. Sino-orbital fistula (SOF) formation is a common documented post-operative complication, usually connecting the orbit and the ethmoid sinus. SOFs can cause leaks of serous fluid, and act as an entry site for pathogens into the orbit leading to socket infection and breakdown. METHODS: This retrospective study analyzed exenterations performed over a 22-year period (1993-2015) at the National Ocular Oncology Service Centre for Scotland. PDS is a crystalline, biodegradable polyether-ester that is strong with good shape-memory and flexibility. Orbital exenterations with and without the use of PDS foil were compared in terms of SOF formation. RESULTS: A total of 30 exenterations were performed during the study period. A total of 29 were analyzed. Choroidal malignant melanoma was the most common indication for performing orbital exenteration (n = 7, 24.14%). The most common post-operative complications seen were SOF (n = 8, 27.59%). A total of 8 out 21 (38.10%) cases not using PDS developed SOFs. By contrast, none of nine patients receiving PDS plates developed SOFs (p = 0.0332). CONCLUSIONS: This is the first study to compare SOF rate in patients undergoing exenteration with and without the use of PDS foil. PDS foil is a safe material, which has effectively reduced the incidence of SOF formation. PMID- 29039989 TI - Combination of clofarabine, cyclophosphamide, and etoposide for relapsed or refractory childhood and adolescent acute myeloid leukemia. AB - Relapsed/refractory acute myeloid leukemia (AML) has an extremely poor prognosis. We describe 17 children and adolescents with relapsed/refractory AML who received clofarabine, cyclophosphamide, and etoposide. Seven patients (41%) responded: 4 with a complete response (CR); 1 with CR with incomplete platelet recovery; and 2 with a partial response. Additionally, 4 developed hypocellular marrow without evidence of leukemia; 5 patients had resistant disease; and 1 suffered early toxic death. After further therapy including transplantation, 4 patients (24%) are alive without evidence of disease at a median of 60 months. This anthracycline-free regimen may be studied for relapsed or refractory AML, but due to the high risk of marrow aplasia reduced doses of clofarabine and cyclophosphamide should be used. PMID- 29039990 TI - Update on ST elevation Myocardial infarction. PMID- 29039991 TI - The effect of olive husk extract compared to the edta on Pb availability and some chemical and biological properties in a Pb-contaminated soil. AB - It was found that using chelating agents increases the efficiency of heavy metal extraction, however, they may have negative effects on soil ecosystem quality. A pot experiment was conducted in a completely randomized design with three replications in order to evaluate the effect of EDTA and Olive Husk Extract (OHE) on some chemical and biological properties of the Pb-contaminated soil. The experimental treatments included EDTA (2 g Na2EDTA salt per kg soil), OHE (2 g TDS of OHE per kg soil) and control (without the chelating agent). The results revealed that the EDTA and OHE treatments increased the Pb availability by 17.7% and 5.5% in comparison to the control treatment, respectively. Although EDTA was more effective in increasing the Pb availability but decreased the soil biological quality index (SBQI). The EDTA treatment significantly decreased the dehydrogenase (DH) activity and germination index (GI). The OHE application significantly increased the available-P, available-K, total N and organic carbon content by 339.92%, 40.79%, 20.9%, and 29.7% compared with control treatment, respectively. Furthermore, OHE considerably increased SBQI from 18.96 to 53.48. Compared to the control treatment higher values of soil respiration activity, DH activity, and carbon availability index (CAI) were observed in OHE treatment. PMID- 29039992 TI - Polymerase Chain Reaction and Goldmann-Witmer Coefficient to Examine the Role of Epstein-Barr Virus in Uveitis. AB - PURPOSE: To use polymerase chain reaction (PCR) and Goldmann-Witmer Coefficient (GWC) calculation to search for evidence that Epstein-Barr virus (EBV) causes uveitis. METHODS: A prospective cross-sectional study where participants with positive multiplex EBV PCR results were further investigated by: 1) real-time PCR for EBV viral loads (VL) and 2) EBV GWC. RESULTS: Eleven of 106 consecutive uveitis patients (10.4%) had positive multiplex PCR for EBV on aqueous humor sampling and 7/11 (63.6%) were HIV-positive. Only 4/10 (40%) cases had detectable intraocular EBV VLs which were always lower than the blood or plasma VL. EBV GWC was negative in all 10 cases tested. In 9/11 (81.8%) of these cases an alternative, more plausible cause of uveitis was identified. CONCLUSION: We found no evidence of active intraocular replication or antibody production to prove that EBV caused uveitis in these cases. In most cases an alternative treatable cause of uveitis was identified. PMID- 29039993 TI - Physical activity pre- and post-dementia: English Longitudinal Study of Ageing. AB - BACKGROUND: To inform public health interventions, further investigation is needed to identify: (1) frequency/intensity of everyday physical activity (PA) needed to reduce dementia risk; (2) whether post-diagnosis reduction in PA is associated with cognitive outcomes in people with dementia. METHODS: Data from 11,391 men and women (aged >=50) were obtained from the English Longitudinal Study of Ageing cohort. Assessments were carried out at baseline (2002-2003) and at biannual follow-ups (2004-2013). RESULTS: Older adults who carried out moderate to vigorous activity at least once per week had a 34%-50% lower risk for cognitive decline and dementia over an 8-10 year follow-up period. From pre- to post-dementia diagnosis, those who decreased PA levels had a larger decrease in immediate recall scores, compared to those who maintained or increased PA levels (analyses were adjusted for changes in physical function). CONCLUSION: PA was associated with cognitive outcomes in a dose-dependent manner. Reduction in PA after diagnosis was associated with accelerated cognitive decline and maintaining PA may reduce symptom progression in dementia. PMID- 29039994 TI - Cell type-dependent localization of MLO proteins. AB - Mildew resistance locus O (MLO) proteins are transmembrane proteins that mediate cell-cell communication in plants. We recently demonstrated the importance of subcellular localization to MLO function during pollen tube reception. NORTIA (NTA), the MLO protein involved in this process, localizes to the Golgi of the synergid cell before interaction with the pollen tube. MLO proteins that can substitute for NTA's function in this pathway all partially localize with the same Golgi marker in the synergid cell. In this study, we report that MLO subcellular localization is cell type-dependent, with different distributions of some MLOs observed when ectopically expressed in the epidermal cells of tobacco and Arabidopsis compared to synergids. This dependency may be due to co-factors that influence MLO function within a given cell type, providing an intriguing new target for understanding MLO distribution and subsequent function in their respective processes. PMID- 29039995 TI - Preferred practice patterns in endoscopic dacryocystorhinostomy among oculoplastic surgeons in Asia-Pacific region. AB - PURPOSE: The aim of this study is to report the preferred practice patterns in endoscopic dacryocystorhinostomy (EnDCR) among oculoplastic surgeons practicing in the Asia-Pacific region. METHODS: A detailed survey with 40 questions was electronically disseminated among oculoplastic surgeons practicing in Asia Pacific region. The mailing list included targeted members of the Asia Pacific Society of Ophthalmic Plastic and Reconstructive Surgery and nonmembers from the contact directories of the two senior authors. Data collected include demographics, training, surgical techniques, postoperative care, and outcomes. RESULTS: The majority of surgeons performed a preoperative nasal endoscopy (76.2%, total respondents (n) = 122), and most preferred a general anesthesia for endoscopic DCRs (51.9%, n = 104). The majority of surgeons believed in preserving nasal mucosal and the lacrimal sac flaps and adjunctive endoscopic procedures were performed when required (58.4%, n = 101). Routine lacrimal sac wall biopsy for histopathology was not a preferred practice. The practice of routine silicone intubation was more common than the use of topical adjunctive. The majority of surgeons (52.6%, n = 97) took 31-60 minutes to complete a unilateral endoscopic DCR. Postoperative routine nasal douching and ostium cleaning were not widespread practices. The self-reported outcomes were good. CONCLUSION: A significantly high percentage of oculoplastic surgeons from Asia-Pacific perform endoscopic DCR. Although the range of practice patterns is wide, there is increasing uniformity in surgical techniques with regard to endoscopic DCR as compared to the previous surveys. PMID- 29039996 TI - Giant pleomorphic adenoma of the lacrimal gland: A surgical challenge. AB - Pleomorphic adenoma is the most common epithelial neoplasm of the lacrimal gland. The tumor typically presents with a superotemporal mass with inferonasal displacement of the globe. They generally measure less than 3 cm in size and can be removed comfortably via a lateral orbitotomy approach. Pleomorphic adenoma left unattended for a long period grows up to humongous proportions and poses a surgical challenge both for its complete removal and globe salvage. We report a rare case of pleomoprphic adenoma of the lacrimal gland in an adult male, who did not seek any medical advice for 20 years allowing the tumor to expand enormously in all dimensions, with complete obscuration of the globe. The tumor was excised completely and globe could be salvaged. PMID- 29039997 TI - Orbital T-cell lymphoma versus lupus panniculitits: a T-cell-mediated spectrum of orbital lymphoproliferative disease. AB - This is a case description of a single male patient found to have T-cell-mediated inflammation and lymphoproliferation of the orbit. Chronic T-cell-mediated inflammatory disease can pose a diagnostic challenge particularly in its differentiation from a neoplastic process. The histopathology in this case demonstrated features of both lupus erythematosus panniculitis and features of orbital T-cell lymphoma. While both are rare, lupus erythematosus panniculitis of the orbit is even more exceptional; this patient's indolent, chronic relapsing course distinguished itself from the typical aggression of orbital T-cell lymphoma. We believe this rare case may actually represent an example of a newly described disease spectrum that incorporates lupus erythematosus panniculitis as well as subcutaneous panniculitis-like T-cell lymphoma. PMID- 29039998 TI - FN1, FOS, and ITGA5 induce preeclampsia: Abnormal expression and methylation. AB - OBJECTIVE: As a frequent hypertensive disorder in pregnancy, preeclampsia causes 15% of all preterm deliveries. This study aims to understand its mechanism via analyzing gene expression and methylation data. METHODS: Human gene expression microarray data (GSE73374) and corresponding DNA methylation microarray data (GSE73375) of preeclamptic placental tissues (n = 19) and normotensive placental tissues (n = 17) were obtained from the Gene Expression Omnibus. Differentially expressed genes (DEGs), differentially methylated regions (DMRs) and CpG islands (DMIs) were identified and compared. Pathway enrichment analysis was performed, and the functional interactions were investigated. RESULTS: A total of 392 DEGs, 2667 DMRs, and 464 DMIs were found between the two groups, and a functional interaction network of DEGs was established. Then, 28 potential key genes were identified, which were oppositely regulated in preeclampsia regarding expression and methylation. Eight of the potential key genes had DMIs, among which ITGA5 interacted with FN1 and FOS. The 3 DEGs were up-regulated, and their DMIs were hypomethylated. CONCLUSION: FN1, FOS, and ITGA5 might promote the development of preeclampsia via modulating differentiation/apoptosis/invasion of human extravillous trophoblasts, as well as focal adhesion, VEGFR3 signaling, beta1 integrin cell surface interactions, alpha9beta1/alpha4beta1 integrin signaling, AP-1/ATF-2/HIF-1alpha transcription factor networks, and Fc-epsilon receptor I signaling in mast cells. PMID- 29039999 TI - Treatment and survival of childhood neuroblastoma: Evidence from a population based study in the United States. AB - BACKGROUND: Childhood neuroblastoma describes a heterogeneous group of extracranial solid tumors, that are treated per risk profile. We sought to describe treatment patterns and survival using population-based data from throughout the United States. MATERIALS AND METHODS: Using the National Cancer Institute (NCI)'s Patterns of Care data, we analyzed treatment provided to newly diagnosed, histologically confirmed neuroblastoma patients in 2010 and 2011, registered to one of 14 Surveillance, Epidemiology, and End Results (SEER) cancer registries. Data were re-abstracted from hospital records and treating physicians contacted for verification. Application of the Children's Oncology Group (COG)'s 3-level (low, intermediate and high) neuroblastoma risk classification system for therapeutic decision-making provided insight to community-based treatment patterns. Kaplan-Meier survival analyses, based on 5-years of follow-up, were also performed. RESULTS: 76% of the 250 patients were enrolled on an open/active clinical trial. All low-risk patients received surgery. Most intermediate-risk patients (81%) received a chemotherapy regimen that included carboplatin, etoposide, cyclophosphamide and doxorubicin. High-risk patients received extensive, multimodal treatment consisting of chemotherapy, surgery, myeloablative chemotherapy with stem cell rescue (transplant), radiation, immunotherapy (dinutuximab), and isotretinoin therapy. 21% patients had died at the end of the maximum 60-month follow-up period. The 5-year estimated survival rates were lower for patients diagnosed with stage 4 disease, unfavorable DNA ploidy, MYCN gene amplification or classified as high-risk. CONCLUSION: Most neuroblastoma patients are registered on a risk-based open/active clinical trial. Variation in modality, systemic agents and sequence of treatment reflects the heterogeneity of therapy received by these patients. PMID- 29040000 TI - Methionine Induces LAT1 Expression in Dairy Cow Mammary Gland by Activating the mTORC1 Signaling Pathway. AB - Methionine is the limiting amino acid for milk protein synthesis in dairy cows. The effect of methionine availability on milk protein synthesis is dependent on its active transport into cells through amino acid transporters. L-type amino acid transporter 1 (LAT1), which induces the transport of neutral amino acids, is highly expressed in lactating mammary gland. However, the effect of methionine on LAT1 expression and the mechanism governing this process in dairy cow mammary gland are poorly understood. In this study, we show that treatment of dairy cow mammary epithelial cells with increasing concentrations of methionine for 24 h resulted in increased expression of LAT1 and its associated protein 4F2 heavy chain (4F2hc). Maximal expression levels occurred after treatment with 0.6 mM methionine. Methionine treatment also increased cell viability and beta-casein synthesis. Western blots showed that methionine induced LAT1 and 4F2hc expression by activating mammalian target of rapamycin complex 1 (mTORC1) signaling. Inhibition of mTORC1 signaling by rapamycin or raptor siRNA prevented the upregulation of LAT1 and 4F2hc. These results indicate that methionine may activate the mTORC1 signaling pathway and further increase LAT1 and 4F2hc expression in dairy cow mammary gland, thus affecting milk protein synthesis. PMID- 29040001 TI - Is gastroesophageal reflux disease associated with primary acquired nasolacrimal duct obstruction? AB - PURPOSE: To determine if patients with primary acquired nasolacrimal duct obstruction (PANDO) have an increased prevalence of gastroesophageal reflux disease (GERD) compared to the general population. METHODS: Cross-sectional case control study. The Mayo Clinic Reflux Disease Questionnaire (RDQ) is used to help physicians diagnose GERD. The retrospective group consisted of patients who previously had a dacryocystorhinostomy (DCR) over a 4-year period by one surgeon (JTH) at one institution. The prospective group included consecutive patients undergoing DCR over an 8-month period for PANDO. The control group consisted of patients at our institution who did not have complaints related to nasolacrimal duct obstruction (NLDO) or a known history of NLDO. The RDQ score or a previous diagnosis of GERD was recorded for each patient. The prevalence of patients with GERD in each of the groups was compared to that in the control group using the Fisher exact test. RESULTS: Nine (7.7%) of 117 patients in the control group were found to have GERD. Twenty-four of 65 (36.9%) patients in the retrospective cohort were found to have GERD. Twelve of 18 (66.7%) patients in the prospective cohort were found to have GERD. When the prospective and retrospective groups were compared to the control group, the presence of GERD was higher in patients with NLDO (p < .0001). CONCLUSION: Based on the results of this study and compared to the general population, GERD has an increased prevalence in patients with PANDO. GERD may have a role in the development of PANDO. PMID- 29040002 TI - FAK-Src-paxillin system expression and disease outcome in human neuroblastoma. AB - BACKGROUND: Neuroblastoma (NB) often presents with metastatic disease and poor survival. The need for new prognostic markers remains invaluable. The FAK-Src Paxillin protein system is associated with aggressive phenotype in adult malignancies but is largely unexplored in pediatric NB. OBJECTIVE: To assess FAK Src-Paxillin protein expression in human NB cell lines and clinical cytology material and to delineate its association with survival. DESIGN/METHODS: Western blot and immunohistochemistry were applied for FAK-Src-Paxillin expression in NB cell lines and 23 human cytology specimens, respectively. Protein expression in human clinical samples was correlated with clinicopathological parameters, MYCN amplification and survival. RESULTS: FAK, Src and Paxillin proteins are expressed in human NB cells lines, and can be detected in clinical cytology specimens from NB patients, (59%, 32% and 33% respectively). Simultaneous FAK-Src-Paxillin expression was noted in 30% of NB patients. Children with concomitant positivity FAK, Src, and Paxillin tumors, as well as MYCN amplification, had increased mortality compared to those without. CONCLUSIONS: FAK-Src-Paxillin system is a marker of unfavorable prognosis for human NB patients but also a promising therapeutic target. PMID- 29040003 TI - Dietary risk evaluation for 28 polycyclic aromatic hydrocarbons (PAHs) in tea preparations made of teas available on the Polish retail market. AB - The aim of this work was to assess dietary risk resulting from consumption of polycyclic aromatic hydrocarbons (PAHs) with tea infusions. To this end, levels of 28 PAHs in black, green, red and white teas available on the Polish retail market have been assessed. Profiles and correlation between concentrations of individual PAHs have been identified. A model study on transfer of PAHs from tea leaves into tea preparations has been conducted. Relatively high concentrations of 28 evaluated PAHs have been found in 58 tested samples of black, green, red and white teas sampled on the Polish retail market. Total concentration ?28PAH ranged from 57 to 696 ug kg-1 with mean 258 ug kg-1 (dry tea leaves). The most mature tea leaves fermented to a small degree contained relatively the highest PAH levels among all four tested tea types. Relatively low PAH transfer rates into tea infusions and limited volumes of the consumed tea keep the risks associated with PAH dietary intake at a safely low level. The worst-case scenario dietary intake values were 7.62/0.82/0.097 ng kg-1 b.w. day-1 (estimated on the basis of the maximum found concentrations 696/113/23 ug kg-1 and maximum observed transfer rates 24/16/9%) for ?28PAH/?PAH4/B[a]P, respectively. MOE values calculated using the above worst case estimates exceeded 700,000 and 400,000 (BMDL10 0.07 and 0.34 mg kg-1 b.w. day-1) for B[a]P and PAH4, respectively. Both B[a]P and PAH4 concentrations may be used as indicators of total PAH concentration in tea leaves; PAH4 slightly better fits low molecular weight PAHs. Several correlations between various PAHs/groups of PAHs have been identified, the strongest one (R2 = 0.92) between PAH4 and EU PAH 15+1. PMID- 29040004 TI - Building Bridges: A Case for Community Health Worker Provision of Misoprostol Only Abortion in the First Trimester. AB - INTRODUCTION: The consequences of unsafe abortion are devastating to women, their families, and their communities. Medication abortion presents an important alternative to harmful self-induction practices and surgical intervention under questionable circumstances. In settings where mifepristone is unavailable, the use of misoprostol alone is a safe and effective option for terminating an unwanted pregnancy. Studies have demonstrated the safety and efficacy of administration of misoprostol by community health workers (CHW) for indications such as postpartum hemorrhage and treatment of incomplete abortion. OBJECTIVES: The current study assesses the safety and efficacy of CHW managing misoprostol only abortion in the first trimester. METHODS: A retrospective review of clinical files of women who received abortion services in three countries in Latin America between April 2009 and December 2015 included analysis of 173 cases. RESULTS: In 94% of cases, the pregnancy was terminated without any further intervention. In the remaining cases, clients were referred for manual vacuum aspiration. In four cases, a complication was reported by the provider. In one, the complication was promptly resolved through referral to a higher level of care; in the remaining three, the complication was resolved directly by the provider. In 98% of cases, women reported being satisfied with the treatment they received. CONCLUSION: This study demonstrates that CHW are able to provide misoprostol-only abortion services to women effectively and safely. The benefits of this model of care also extend beyond the abortion service: CHW are able to offer women a comprehensive range of quality health services, including contraceptive services, increasing access to vital healthcare in areas with few other options. PMID- 29040005 TI - The Shape of Vesicle-Containing Organelles Is Critical for Their Functions in Vesicle Endocytosis. AB - Exosomes are small vesicles secreted by a variety of cell types under physiological and pathological conditions. When Saccharomyces cerevisiae are grown in low glucose, small vesicles carrying more than 300 proteins with diverse biological functions are secreted. Upon glucose addition, secreted vesicles are endocytosed that requires cup-shaped organelles containing the major eisosome protein Pil1p at the rims. We aim to identify genes that regulate the function of cup-shaped organelles in vesicle endocytosis. In cells lacking either VID27 or VID21, Pil1p distribution was altered and cup-shaped organelles became elongated with narrower openings. Change in shape reduced the number of vesicles in the deeper areas and impaired vesicle endocytosis. Vid21p and Vid27p were localized to vesicle clusters and interacted with other Vid proteins. In the absence of these genes, these vesicles failed to aggregate and were secreted. Vid21p and Vid27p are required for the aggregation and retention of vesicles that contain Vid proteins in the cytoplasm. Increased vesicles near the plasma membrane in mutant strains correlate with an increased Pil1p movement resulting in the fusion of cup-shaped organelles. We conclude that the shape of vesicle-containing organelles is critical for their functions in vesicle endocytosis. PMID- 29040006 TI - Neurokinin 3 receptor antagonism - the magic bullet for hot flushes? AB - Hot flushes affect 70% of menopausal women and are reported as being the most bothersome symptom by the majority. Hormone replacement therapy and other currently available alternative therapies are not without side-effects and/or have variable efficacy, and so an effective novel therapy could be practice changing. Over the last 20 years, numerous studies in animal and human models have implicated neurokinin B, a hypothalamic neuropeptide, together with its receptor (NK3R) in the etiology of menopausal hot flushes. Most recently, a randomized, placebo-controlled trial of an NK3R antagonist in symptomatic menopausal women has proven concept suggesting a new therapeutic that can safely and effectively reduce hot flush frequency, severity, bother, and interference without the need for estrogen exposure. Here we review the physiology and neurocircuitry of the reproductive axis, hot flushes, and the evidence that supports this potential new therapeutic approach. PMID- 29040007 TI - Probing Birth-Order Effects on Narrow Traits Using Specification-Curve Analysis. AB - The idea that birth-order position has a lasting impact on personality has been discussed for the past 100 years. Recent large-scale studies have indicated that birth-order effects on the Big Five personality traits are negligible. In the current study, we examined a variety of more narrow personality traits in a large representative sample ( n = 6,500-10,500 in between-family analyses; n = 900 1,200 in within-family analyses). We used specification-curve analysis to assess evidence for birth-order effects across a range of models implementing defensible yet arbitrary analytical decisions (e.g., whether to control for age effects or to exclude participants on the basis of sibling spacing). Although specification curve analysis clearly confirmed the previously reported birth-order effect on intellect, we found no meaningful effects on life satisfaction, locus of control, interpersonal trust, reciprocity, risk taking, patience, impulsivity, or political orientation. The lack of meaningful birth-order effects on self-reports of personality was not limited to broad traits but also held for more narrowly defined characteristics. PMID- 29040008 TI - Analysis of the Clinical Profile and Management of Inflammatory Choriodal Neovascular Membranes in Uveitic Eyes: A Study from A Tertiary Referral Center. AB - PURPOSE: To analyze clinical profile and management of inflammatory choroidal neovascularization (CNV) seen at a referral uveitis clinic. METHODS: Records of patients with uveitis and inflammatory CNV from January 1989 to April 2012 were retrieved and the data was analyzed. RESULTS: Forty-nine eyes of 43 patients were included. Mean age at presentation was 35.81 years. Eighteen eyes (36.7%) had infective etiology and 31 eyes (63.2%) had non-infective etiology. The most common location of the CNV was subfoveal, in 18 eyes (36.7%). Management included corticosteroids in all patients, additional immunosuppressive in 17 eyes (34.6%) and local management, with anti-VEGF injections in 29 eyes (63%). Visual outcome was favorable in 37 eyes (75%). CONCLUSION: Inflammatory CNV can be successfully managed and vision can be improved or stabilized, with prompt and adequate therapy of the underlying uveitic disease coupled with additional local therapy to selectively target the CNV. PMID- 29040009 TI - Ocular Involvement in Patients with Fungemia in an Urban Tertiary Care Center. AB - PURPOSE: To illustrate the rate of endogenous endophthalmitis associated with fungemia and evaluate the importance of screening in a public city hospital. METHODS: A retrospective review was performed on all inpatient ophthalmology consults for fungemia from 2010 to 2015. Clinical histories, ocular examinations, and microbial cultures were reviewed. RESULTS: Of 95 patients (mean age 51.6 years, 75% male) with fungemia, 9/95 (9.5%) demonstrated intraocular involvement. Of these nine patients, two were unable to participate in the ophthalmic exam due to intubation, while the remaining seven reported no changes in their vision. Two patients had their antifungal medications adjusted to optimize intraocular penetration and one patient progressed to develop vitreous involvement but died before further escalation of care occurred. CONCLUSION: All involved individuals in this study were either non-communicative or without visual complaints. This suggests that routine screening should still be recommended, especially in a public hospital setting. PMID- 29040011 TI - Bioactive edible films for food applications:Influence of the bioactive compounds on film structure and properties. AB - Nowadays, a new generation of edible films is being especially designed for incorporating antimicrobials, antioxidants, enzymes or functional ingredients. Edible films made from natural biopolymers become the focus of many research works as an alternative to synthetic food packaging due to their edibility, biodegradability and compostability as well as to their use as active packaging. Active compounds incorporated in edible films could protect foods against deterioration during storage and therefore extend their shelf life. These active films were mainly studied for the bioactivity, as antimicrobial or antioxidant. However, they could also improve the structure and the physicochemical properties of films through chemical linkage with reactive groups of the polymer chains for instance. Moreover, changing the film structure under cross-linking reaction may increase the cohesion between polymer chains and active compounds, and therefore their retention in the polymer network to better control their release. This manuscript provides an overview on the effect of bio-active compounds incorporation on the film structure and functional properties. Depending on their structure, concentration, reactive groups,.., active compounds can act as plasticizer, but also as anti-plasticizer or cross-linking agents in the biopolymer matrix, and can thus ameliorate the water vapour and gas permeability. Therefore, the retention of bioactive compounds in the polymer network and their release can be better controlled. They can also provide a negative plasticizing effect on the film structure. Hence, the improvement of edible active film functionalities has been investigated to achieve suitable applications on foods. PMID- 29040013 TI - Connectome-based Models Predict Separable Components of Attention in Novel Individuals. AB - Although we typically talk about attention as a single process, it comprises multiple independent components. But what are these components, and how are they represented in the functional organization of the brain? To investigate whether long-studied components of attention are reflected in the brain's intrinsic functional organization, here we apply connectome-based predictive modeling (CPM) to predict the components of Posner and Petersen's influential model of attention: alerting (preparing and maintaining alertness and vigilance), orienting (directing attention to a stimulus), and executive control (detecting and resolving cognitive conflict) [Posner, M. I., & Petersen, S. E. The attention system of the human brain. Annual Review of Neuroscience, 13, 25-42, 1990]. Participants performed the Attention Network Task (ANT), which measures these three factors, and rested during fMRI scanning. CPMs tested with leave-one subject-out cross-validation successfully predicted novel individual's overall ANT accuracy, RT variability, and executive control scores from functional connectivity observed during ANT performance. CPMs also generalized to predict participants' alerting scores from their resting-state functional connectivity alone, demonstrating that connectivity patterns observed in the absence of an explicit task contain a signature of the ability to prepare for an upcoming stimulus. Suggesting that significant variance in ANT performance is also explained by an overall sustained attention factor, the sustained attention CPM, a model defined in prior work to predict sustained attentional abilities, predicted accuracy, RT variability, and executive control from task-based data and predicted RT variability from resting-state data. Our results suggest that, whereas executive control may be closely related to sustained attention, the infrastructure that supports alerting is distinct and can be measured at rest. In the future, CPM may be applied to elucidate additional independent components of attention and relationships between the functional brain networks that predict them. PMID- 29040012 TI - Outcome of acute lymphoblastic leukemia in children with down syndrome-Polish pediatric leukemia and lymphoma study group report. AB - Children with Down syndrome (DS) have a 20-fold increased risk of developing leukemia compared with the general population. The aim of the study was to analyze the outcome of patients diagnosed with Down syndrome and acute lymphoblastic leukemia (ALL) in Poland between the years 2003 and 2010. A total of 1848 children were diagnosed with ALL (810 females and 1038 males). Of those, 41 (2.2%) had DS. The children were classified into three risk groups: a standard risk group-14 patients, an intermediate-risk group-24, a high-risk group-3. All patients were treated according to ALLIC 2002 protocol. The median observation time of all patients was 6.1 years, and in patients with DS 5.3 years. Five-year overall survival (OS) was the same in all patients (86% vs 86%, long-rank test, p = .9). The relapse-free survival (RFS) was calculated as 73% in patients with DS and 81% in patients without DS during a median observation time (long-rank test, p = .3). No statistically significant differences were found in the incidence of nonrelapse mortality between those two groups of patients (p = .72). The study was based on children with ALL and Down syndrome who were treated with an identical therapy schedule as ALL patients without DS, according to risk group. This fact can increase the value of the presented results. PMID- 29040015 TI - Distinct Representations of Magnitude and Spatial Position within Parietal Cortex during Number-Space Mapping. AB - Mapping numbers onto space is foundational to mathematical cognition. These cognitive operations are often conceptualized in the context of a "mental number line" and involve multiple brain regions in or near the intraparietal sulcus (IPS) that have been implicated both in numeral and spatial cognition. Here we examine possible differentiation of function within these brain areas in relating numbers to spatial positions. By isolating the planning phase of a number line task and introducing spatiotopic mapping tools from fMRI into mental number line task research, we are able to focus our analysis on the neural activity of areas in anterior IPS (aIPS) previously associated with number processing and on spatiotopically organized areas in and around posterior IPS (pIPS), while participants prepare to place a number on a number line. Our results support the view that the nonpositional magnitude of a numerical symbol is coded in aIPS, whereas the position of a number in space is coded in posterior areas of IPS. By focusing on the planning phase, we are able to isolate activation related to the cognitive, rather than the sensory-motor, aspects of the task. Also, to allow the separation of spatial position from magnitude, we tested both a standard positive number line (0 to 100) and a zero-centered mixed number line (-100 to 100). We found evidence of a functional dissociation between aIPS and pIPS: Activity in aIPS was associated with a landmark distance effect not modulated by spatial position, whereas activity in pIPS revealed a contralateral preference effect. PMID- 29040014 TI - Spatially Selective Alpha Oscillations Reveal Moment-by-Moment Trade-offs between Working Memory and Attention. AB - Current theories assume a functional role for covert attention in the maintenance of spatial information in working memory. Consistent with this view, both the locus of attention and positions stored in working memory can be decoded based on the topography of oscillatory alpha-band (8-12 Hz) activity on the scalp. Thus far, however, alpha modulation has been studied in isolation for covert attention and working memory tasks. Here, we applied an inverted spatial encoding model in combination with EEG to study the temporal dynamics of spatially specific alpha activity during a task that required observers to visually select a target location while maintaining another independently varying location in working memory. During the memory delay period, alpha-based spatial tuning functions shifted from the position stored in working memory to the covertly attended position and back again after the attention task was completed. The findings provide further evidence for a common oscillatory mechanism in both the selection and the maintenance of relevant spatial visual information and demonstrate the dynamic trade-off in prioritization between two spatial tasks. PMID- 29040010 TI - Deregulated angiogenesis in chronic lung diseases: a possible role for lung mesenchymal progenitor cells (2017 Grover Conference Series). AB - Chronic lung disease (CLD), including pulmonary fibrosis (PF) and chronic obstructive pulmonary disease (COPD), is the fourth leading cause of mortality worldwide. Both are debilitating pathologies that impede overall tissue function. A common co-morbidity in CLD is vasculopathy, characterized by deregulated angiogenesis, remodeling, and loss of microvessels. This substantially worsens prognosis and limits survival, with most current therapeutic strategies being largely palliative. The relevance of angiogenesis, both capillary and lymph, to the pathophysiology of CLD has not been resolved as conflicting evidence depicts angiogenesis as both reparative or pathologic. Therefore, we must begin to understand and model the underlying pathobiology of pulmonary vascular deregulation, alone and in response to injury induced disease, to define cell interactions necessary to maintain normal function and promote repair. Capillary and lymphangiogenesis are deregulated in both PF and COPD, although the mechanisms by which they co-regulate and underlie early pathogenesis of disease are unknown. The cell-specific mechanisms that regulate lung vascular homeostasis, repair, and remodeling represent a significant gap in knowledge, which presents an opportunity to develop targeted therapies. We have shown that that ABCG2pos multipotent adult mesenchymal stem or progenitor cells (MPC) influence the function of the capillary microvasculature as well as lymphangiogenesis. A balance of both is required for normal tissue homeostasis and repair. Our current models suggest that when lymph and capillary angiogenesis are out of balance, the non-equivalence appears to support the progression of disease and tissue remodeling. The angiogenic regulatory mechanisms underlying CLD likely impact other interstitial lung diseases, tuberous sclerosis, and lymphangioleiomyomatosis. PMID- 29040016 TI - Centella asiatica Fraction-3 Suppresses the Nuclear Factor Erythroid 2-Related Factor 2 Anti-Oxidant Pathway and Enhances Reactive Oxygen Species-Mediated Cell Death in Cancerous Lung A549 Cells. AB - Centella asiatica is a tropical medicinal plant that is commonly used in traditional medicine. Medicinal properties of C. asiatica include anti-oxidant, anti-inflammatory, and anti-cancer activity. We investigated the anti-oxidant and anti-proliferative/cytotoxic effects of a semi-purified fraction of C. asiatica ethanolic leaf extract (C3) in cancerous lung A549 cells. C3 was obtained by silica column fractionation and identified by using thin-layer chromatography and gas chromatography mass spectrometry. Cytotoxicity of C3 in A549 cells was evaluated (cell viability assay-WST-1; 24 h; [0.2-3 mg/mL]) to determine an inhibitory concentration (IC50). Intracellular reactive oxygen species (IROS), mitochondrial membrane potential (flow cytometry), malondialdehyde (MDA), lactate dehydrogenase (LDH) (spectrophotometry), glutathione (GSH), oxidised glutathione (GSSG), adenosine triphosphate levels, caspase activity (luminometry), and DNA damage (comet assay) were evaluated. Protein expression (Nrf-2, p53, Bax, Bcl-2, and HSP-70) and gene expression (Nrf-2, GPx, SOD, CAT, c-myc, and OGG-1) were quantified by western blotting and quantitative polymerase chain reaction (qPCR), respectively. C3 dose dependently decreased A549 cell viability. The IC50 of C3 increased MDA, IROS, mitochondrial depolarization, LDH, caspase (-8, -9, -3/7) activity, DNA damage, GSH levels, Nrf-2 protein expression, HSP-70 protein expression, and OGG-1 gene expression (P < .05). GSSG levels, anti-oxidant (Nrf 2, GPx, SOD) gene expression, p53, Bax, and Bcl-2 protein expression were decreased by C3 (P < .02). C3 diminished the anti-oxidant gene expression and induced anti-proliferative/cytotoxic effects in A549 cells. PMID- 29040017 TI - Aralia elata (Miq) Seem Extract Decreases O-GlcNAc Transferase Expression and Retinal Cell Death in Diabetic Mice. AB - Aralia elata (Miq) Seem (AES) is a medicinal plant used in traditional Chinese and Korean medicine for the treatment of several diseases, including diabetes. This study aimed to investigate the neuroprotective effect of AES extract against high glucose-induced retinal injury in diabetic mice. AES extract (20 and 100 mg/kg body weight) was orally administered to control mice or mice with streptozotocin-induced diabetes. Protein levels of O-linked beta-N acetylglucosamine (O-GlcNAc) transferase (OGT), carbohydrate-responsive element binding protein (ChREBP), sterol regulatory element-binding protein (SREBP)-1, thioredoxin-interacting protein (TXNIP), fatty acid synthase (FAS), and acetyl CoA carboxylase (ACC) were analyzed by western blotting. Colocalization of terminal deoxynucleotide transferase-mediated dUTP nicked-end labeling (TUNEL) positive ganglion cells and OGT, ChREBP, or TXNIP were monitored using double immunofluorescence analysis. Interaction between ChREBP and OGT was assessed using coimmunoprecipitation analysis. AES extract protected the retinas from neuronal injury and decreased levels of OGT, ChREBP, TXNIP, SREBP-1, FAS, and ACC in the diabetic retinas. AES extract reduced colocalization of TUNEL-positive ganglion cells and OGT, ChREBP, or TXNIP in the diabetic retinas. Coimmunoprecipitation analysis indicated that AES extract reduced interaction between ChREBP and OGT and attenuated ganglion cell death in diabetic retinas. Moreover, the ChREBP that colocalized with OGT or the TUNEL signal was significantly decreased in diabetic mice treated with AES extract. These findings show that AES extract can alleviate OGT-, ChREBP-, TXNIP-, or SREBP-1-related retinal injury in diabetic retinopathy. PMID- 29040018 TI - Primary Abdominal Wall Abscess by Actinomyces and Eikenella corrodens: A First Report. PMID- 29040019 TI - Seasonal expression patterns of clock-associated genes in the blue mussel Mytilus edulis. AB - Environmental cues allow organisms to synchronise their internal biological rhythms with external environmental cycles. These rhythms are regulated on a molecular level by oscillating interactions between clock genes and their proteins. Light is a particularly relevant environmental cue, provisioning daily information via light/dark cycles as well as seasonal information via day-length (photoperiod). Despite the ecological and commercial importance of bivalves, little is known about the interactions comprising their molecular clock mechanism. This study investigates the link between the annual seasonal progression and reproductive development in the blue mussel (Mytilus edulis), using mRNA expression patterns of clock-associated genes: Clock, Cry1 ARNT, Timeout-like, ROR/HR3 and aaNAT, in the gonads of both sexes, sampled over three daily time-points on a tidal beach during the winter and summer solstices. Significant differences in mRNA expression levels, including some seasonal differences at comparable time-points, were detected for all genes with the exception of Timeout-like. These differences occurred seasonally within sex (Clock, Cry1, ROR/HR3), seasonally between sexes (Clock, Cry1, ARNT, ROR/HR3, aaNAT) and daily between sexes (Cry1), although no significant daily differences were detected in summer or winter for either sex for any of the genes. This study reveals that clock-associated genes show seasonal responses in this species of bivalve. Understanding the mechanisms by which environmental cues drive biological rhythms is critical to understanding the seasonal sensitivity of this keystone species to environmental changes. PMID- 29040021 TI - Flexible Sigmoidoscopy and CT Colonography Screening: Patients' Experience with and Factors for Undergoing Screening-Insight from the Proteus Colon Trial. AB - Purpose To compare the acceptability of computed tomographic (CT) colonography and flexible sigmoidoscopy (FS) screening and the factors predicting CT colonographic screening participation, targeting participants in a randomized screening trial. Materials and Methods Eligible individuals aged 58 years (n = 1984) living in Turin, Italy, were randomly assigned to be invited to screening for colorectal cancer with FS or CT colonography. After individuals who had died or moved away (n = 28) were excluded, 264 of 976 (27.0%) underwent screening with FS and 298 of 980 (30.4%) underwent CT colonography. All attendees and a sample of CT colonography nonattendees (n = 299) were contacted for a telephone interview 3-6 months after invitation for screening, and screening experience and factors affecting participation were investigated. Odds ratios (ORs) were computed by means of multivariable logistic regression. Results For the telephone interviews, 239 of 264 (90.6%) FS attendees, 237 of 298 (79.5%) CT colonography attendees, and 182 of 299 (60.9%) CT colonography nonattendees responded. The percentage of attendees who would recommend the test to friends or relatives was 99.1% among FS and 93.3% among CT colonography attendees. Discomfort associated with bowel preparation was higher among CT colonography than FS attendees (OR, 2.77; 95% confidence interval [CI]: 1.47, 5.24). CT colonography nonattendees were less likely to be men (OR, 0.36; 95% CI: 0.18, 0.71), retired (OR, 0.31; 95% CI: 0.13, 0.75), to report regular physical activity (OR, 0.37; 95% CI: 0.20, 0.70), or to have read the information leaflet (OR, 0.18; 95% CI: 0.08, 0.41). They were more likely to mention screening-related anxiety (mild: OR, 6.30; 95% CI: 2.48, 15.97; moderate or severe: OR, 3.63; 95% CI: 1.87, 7.04), erroneous beliefs about screening (OR, 32.15; 95% CI: 6.26, 165.19), or having undergone a recent fecal occult blood test (OR, 13.69; 95% CI: 3.66, 51.29). Conclusion CT colonography and FS screening are well accepted, but further reducing the discomfort from bowel preparation may increase CT colonography screening acceptability. Negative attitudes, erroneous beliefs about screening, and organizational barriers are limiting screening uptake; all these factors are modifiable and therefore potentially susceptible to interventions. (c) RSNA, 2017 Online supplemental material is available for this article. PMID- 29040020 TI - First Report of Toxoplasma gondii Infection in Tuberculosis Patients in China. AB - In recent years, coinfection of tuberculosis (TB) and parasitosis in humans is an emerging problem in coendemic areas, which has been increasingly highlighted in developing countries. However, there is limited information about the prevalence of Toxoplasma gondii infection in TB patients. Therefore, through a case-control study, 924 TB patients hospitalized for diacrisis or treatment in northeastern and eastern China, and 924 control subjects from the general population of the same region matched with gender, age, and residence were examined for the presence of IgG and IgM antibodies to T. gondii and associated sociodemographic and behavioral characteristics in a population of TB patients. Seroprevalence of IgG antibodies to T. gondii in TB patients (122/924, 13.2%) was significantly higher than control subjects (90/924, 9.7%) (p = 0.019), and 26 (2.8%) TB patients and 19 (2.1%) controls were positive for anti-T. gondii IgM antibodies (p = 0.291), respectively. Multivariate analysis showed that T. gondii infection was associated with keeping cats at home, presence of stray cats, and consumption of raw/undercooked meat. The present study first revealed the seroprevalence of T. gondii infection in TB patients in China. Moreover, parasitological surveys should be regularly carried out among TB patients, aiming to prevent the possibility of severe toxoplasmosis. PMID- 29040022 TI - Added Value of a Single Fast 20-second Deep-Inspiration Breath-hold Acquisition in FDG PET/CT in the Assessment of Lung Nodules. AB - Purpose To compare the accuracy of a single 20-second deep-inspiration breath hold (DIBH) in fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) to that with conventional free-breathing (FB) whole-body PET/CT for the assessment, characterization, and quantification of lung lesions in terms of the blurring effect of respiratory motion. Materials and Methods Institutional review board approval was obtained, and the requirement to obtain informed consent was waived. A preclinical study was performed in a test population of 19 patients to evaluate the feasibility and consistency of DIBH techniques compared with phase-based respiratory gating (PBRG). One hundred fifteen patients with lung lesions were then prospectively included and assessed with FB PET/CT followed by 20-second DIBH PET/CT. Maximum standardized uptake value (SUVmax), peak standardized uptake value (SUVpeak), and number and size of nodules were reported for each acquisition and then compared with findings from histopathologic examination and/or clinical-radiologic follow-up. Statistical analysis was performed with the t test, chi2 test, Pearson correlation coefficient, and receiver operating characteristic analysis. Results In the test population, data obtained with DIBH PET and PBRG PET showed close correlation (r = 0.94, P < .001 for SUVmax and r = 0.98, P < .001 for SUVpeak). In the clinical population, both SUVmax and SUVpeak were significantly increased with DIBH compared with FB (5.60 +/- 4.20 vs 3.11 +/- 1.80 and 2.25 +/- 1.75 vs 1.71 +/- 0.96, respectively; P < .001). A significantly greater number of lung lesions was detected with DIBH PET/CT compared with FB PET/CT (P < .001), with the detection of 70 additional nodules and more accurate coregistration of 84. According to the area under the receiver operating characteristic curve for SUVpeak, DIBH demonstrated a higher level of accuracy than did FB (P = .039). Conclusion The DIBH PET/CT technique is feasible in routine clinical practice and is more sensitive for quantitative measurements and lesion localization. This technique reduces the blurring effect of respiratory motion, thus improving the diagnostic accuracy for lung nodules. (c) RSNA, 2017. PMID- 29040023 TI - Dramatic clinical and radiographic response to BRAF inhibition in a patient with progressive disseminated optic pathway glioma refractory to MEK inhibition. AB - While clinical and radiographic responses to agents targeting the mitogen activated protein kinases (MAPK) pathway have been repor-ted in pediatric low grade gliomas (LGG), early phase trials indicate refractoriness to these medications in some of these patients. We report a patient with disseminated LGG with the BRAFV600E mutation, which was refractory to selumetinib, a MEK inhibitor, but subsequently showed immediate clinical and radiographic response to dabrafenib, a BRAF inhibitor, with sustained effect for 9 months prior to clinical progression. In LGGs, treatment resistance to one agent targeting the MAPK pathway might not imply refractoriness to other agents targeting this pathway. PMID- 29040025 TI - Effect of chronic consumption of pistachios (Pistacia vera L.) on glucose metabolism in pre-diabetics and type 2 diabetics: A systematic review. AB - Pistachio is a nut with high polyunsaturated fatty acids (PUFA), monounsaturated fatty acids (MUFA), polyphenols and carotenoids content, and the synergism between these compounds appears to affect glucose metabolism. In this systematic review we analyzed studies in which the effect of chronic consumption of pistachio on markers of glucose metabolism was evaluated in pre-diabetic and type 2 diabetics. We used the PubMed, Scopus, Cochrane and Lilacs databases. The research terms used were pistachio, pre-diabetes, type 2 diabetes mellitus, insulin resistance, blood glucose, hyperglycemia and glycated hemoglobin (HbA1c). Four articles were selected, of which three tested the intake of 50 to 57 g of pistachio/day and one 20% of the daily caloric intake, for a period of 1 to 4 months. Studies reported a decrease in fasting blood glucose, insulinemia, HOMA IR, and fructosamine, but no change in HbA1c. Lower concentrations of miR-192 and miR-375 were also found, which correlated positively with HOMA-IR. The synergism between PUFA, MUFA, polyphenols and carotenoids present in pistachios can modulate specific miRNA, increasing insulin sensitivity through the PI3K-AKT signaling pathway. This modulation can be used as a tool to monitor the response to interventions, favoring the prevention and treatment of complications related to diabetes. PMID- 29040026 TI - A comparison of the success rates of endoscopic-assisted probing in the treatment of membranous congenital nasolacrimal duct obstruction between younger and older children and its correlation with the thickness of the membrane at the Valve of Hasner. AB - Congenital nasolacrimal duct obstruction (CNLDO) remains the most common cause of epiphora in infants. This retrospective study compares the success rate of nasal endoscopic-assisted probing between younger (3 years and below) and older (above 3 years) children with membranous CNLDO and its correlation with the thickness of the membrane at the valve of Hasner. Case records of a total of 38 eyes in 34 children with membranous CNLDO who underwent endoscopic nasolacrimal duct probing and irrigation under general anesthesia were analyzed. The cases were divided into two groups, Group Y (20 cases of children 3 years and below) and Group O (18 cases of children above 3 years). The success of the procedure was defined as complete remission of symptoms and a clinical examination of eye to rule out the presence for discharge or watering after three months of the procedure. Overall, 35 cases (92.1%) were successfully treated with a success rate of 95% in Group Y and 88.9% in Group O. The mid-P exact test p value for the success rate between the two cohorts was not statistically significant (p = 0.59). The thick membrane was observed in 50% cases in Group Y and 33.33% cases in Group O (p = 0.34). There is no age related decline in the overall success rate for nasal endoscopic assisted probing and irrigation in cases of membranous CNLDO. The thickness of the membrane may be a factor for failed blind probing, but it has no correlation with the success rate if probing is done under endoscopic guidance. PMID- 29040024 TI - Permeability and calcium signaling in lung endothelium: unpack the box.... AB - This brief review assesses the role of Ca2+ signaling in lung endothelium in regulation of endothelial permeability. The disconnect between experimental and clinical outcomes to date may be due, in part, to the use of tools which yield information about aggregate permeability or Ca2+ responses in lung or in endothelial monolayers. The teaching point of this review is to "unpack the box," i.e. consider the many potential issues which could impact interpretation of outcomes. These include phenotypic heterogeneity and resultant segment-specific permeability responses, methodologic issues related to permeability measures, contributions from Ca2+ channels in cells other than endothelium-such as alveolar macrophages or blood leukocytes), Ca2+ dynamic patterns, rather than averaged Ca2+ responses to channel activation, and the background context, such as changes in endothelial bioenergetics with sepsis. Any or all of these issues might color interpretation of permeability and Ca2+ signaling in lung. PMID- 29040027 TI - Touraine-Solente-Gole syndrome. AB - Touraine-Solente-Gole syndrome, also known as Pachydermoperiostosis (PDP) or Primary Hypertrophic Osteoarthropathy, is a rare hereditary disorder, which affects both bones and skin. It is characterized by a combination of dermatologic changes (pachydermia or thickening of the skin) and rheumatologic manifestations (periostosis and finger clubbing). Eyelid ptosis which is caused by thickened eyelids (blepharoptosis) is a less common symptom. We report the case of a patient with a complete form of Touraine-Solente-Gole syndrome with bilateral blepharoptosis as presenting feature. PMID- 29040028 TI - Elaboration in type, primary structure, and bioactivity of polysaccharides derived from mollusks. AB - Over the past decades, numerous Mollusca species have received more attention in development and utilization as valuable bio-resources. Many efforts have been focused on investigating mollusk polysaccharides because of their rich content, ease of extraction, diversified sorts, specific structure, various biofunctions and potent activities. To date, many mollusks, especially species of gastropods, bivalves, or cephalopods, have been reported containing polysaccharide compounds in tissues with abundant amount, and most of polysaccharides are obtainable through combining techniques of extraction, separation and purification. The polysaccharides isolated from mollusks appeared with various structural and physicochemical characteristics, ranged from neutral polysaccharides and sulfated polysaccharides, to GAGs series (including Hep/HS, CS/DS, HA and similarities), even to heterogeneous glycan with high molecular weight. This review article provides comprehensive knowledge of recent researches on type classification, tissue origins and possible biofunctions of various polysaccharides from mollusks. The highlights were placed in structure variation including molecular weight, sulfation pattern, linkages and monomer compositions for repeating unit, and primary molecular construction of the mollusks polysaccharides. In addition, this article covers general information on exhibition of mollusks polysaccharide extracts or preparations in the various bioactivities, such as anticoagulant, antiatherogenic, antioxidant, immunomodulatory, antivirus and antitumor activities, which would reveal their possible potentials in medical application. Furthermore, the article presents a brief overview on several challenges and future scope in this field. PMID- 29040029 TI - Autologous fat transfer with SEFFI (superficial enhanced fluid fat injection) technique in periocular reconstruction. AB - PURPOSE: To evaluate the aesthetic and functional outcomes of autologous fat transfer using the SEFFI (superficial enhanced fluid fat injection) technique for reconstruction of the periocular area. METHODS: Autologous fat injections prepared with the 0.5 mL and 0.8 mL SEFFI technique were used in four patients for periocular rehabilitation. RESULTS: Case 1 (C1): A patient with left-sided progressive facial hemiatrophy underwent ipsilateral volumizing with 0.8 SEFFI in the superior, temporal, and inferior periorbital areas, and 0.5 SEFFI in both eyelids. C2: A 21-year-old female with a post trauma frontal scar, left ptosis, and lower eyelid retraction was treated with 0.5 SEFFI applied in the scar area associated with an upper eyelid conjunctivomullerectomy and resection of the lower eyelid retractors. C3: A patient with previous left-eye evisceration and orbital floor and medial wall fractures underwent socket reconstruction with buccal mucosal graft in the lower fornix and 0.5 SEFFI injections in both superior and inferior eyelids. SEFFI was also applied in the intraorbital space for correction of the enophthalmos. C4: A patient with lower lid retraction post blepharoplasty was treated with 0.8 SEFFI injections in lower eyelids and malar areas, complemented with a bilateral lateral cantopexy. CONCLUSIONS: Autologous fat transfer with SEFFI technique is an effective and safe procedure in cases of periocular rehabilitation. PMID- 29040030 TI - Nivolumab Plus Ipilimumab in Patients With Advanced Melanoma: Updated Survival, Response, and Safety Data in a Phase I Dose-Escalation Study. AB - Purpose The clinical activity observed in a phase I dose-escalation study of concurrent therapy with nivolumab (NIVO) and ipilimumab (IPI) in patients with previously treated or untreated advanced melanoma led to subsequent clinical development, including randomized trials. Here, we report long-term follow-up data from study CA209-004, including 3-year overall survival (OS). Patients and Methods Concurrent cohorts 1, 2, 2a, and 3 received escalating doses of NIVO plus IPI once every 3 weeks for four doses, followed by NIVO once every 3 weeks for four doses, then NIVO plus IPI once every 12 weeks for eight doses. An expansion cohort (cohort 8) received concurrent NIVO 1 mg/kg plus IPI 3 mg/kg once every 3 weeks for four doses, followed by NIVO 3 mg/kg once every 2 weeks, which is the dose and schedule used in phase II and III studies and now approved for patients with unresectable or metastatic melanoma. Results Among all concurrent cohorts (N = 94) at a follow-up of 30.3 to 55.0 months, the 3-year OS rate was 63% and median OS had not been reached. Objective response rate by modified WHO criteria was 42%, and median duration of response was 22.3 months. Incidence of grade 3 and 4 treatment-related adverse events was 59%. The most common grade 3 and 4 treatment-related adverse events were increases in lipase (15%), alanine aminotransferase (12%), and aspartate aminotransferase (11%). One treatment related death (1.1%) occurred in a patient who had multiorgan failure 70 days after the last dose of NIVO plus IPI. Conclusion This is the longest follow-up for NIVO plus IPI combination therapy in patients with advanced melanoma. The 3 year OS rate of 63% is the highest observed for this patient population and provides additional evidence for the durable clinical activity of immune checkpoint inhibitors in the treatment of advanced melanoma. PMID- 29040031 TI - Prospective, Randomized, Double-Blind, Phase III Clinical Trial of Anti-T Lymphocyte Globulin to Assess Impact on Chronic Graft-Versus-Host Disease-Free Survival in Patients Undergoing HLA-Matched Unrelated Myeloablative Hematopoietic Cell Transplantation. AB - Purpose Several open-label randomized studies have suggested that in vivo T-cell depletion with anti-T-lymphocyte globulin (ATLG; formerly antithymocyte globulin Fresenius) reduces chronic graft-versus-host disease (cGVHD) without compromising survival. We report a prospective, double-blind phase III trial to investigate the effect of ATLG (Neovii Biotech, Lexington, MA) on cGVHD-free survival. Patients and Methods Two hundred fifty-four patients 18 to 65 years of age with acute leukemia or myelodysplastic syndrome who underwent myeloablative HLA matched unrelated hematopoietic cell transplantation (HCT) were randomly assigned one to one to placebo (n =128 placebo) or ATLG (n = 126) treatment at 27 sites. Patients received either ATLG or placebo 20 mg/kg per day on days -3, -2, -1 in addition to tacrolimus and methotrexate as GVHD prophylaxis. The primary study end point was moderate-severe cGVHD-free survival. Results Despite a reduction in grade 2 to 4 acute GVHD (23% v 40%; P = .004) and moderate-severe cGVHD (12% v 33%; P < .001) in ATLG recipients, no difference in moderate-severe cGVHD-free survival between ATLG and placebo was found (2-year estimate: 48% v 44%, respectively; P = .47). Both progression-free survival (PFS) and overall survival (OS) were lower with ATLG (2-year estimate: 47% v 65% [ P = .04] and 59% v 74% [ P = .034], respectively). Multivariable analysis confirmed that ATLG was associated with inferior PFS (hazard ratio, 1.55; 95% CI, 1.05 to 2.28; P = .026) and OS (hazard ratio, 1.74; 95% CI, 1.12 to 2.71; P = .01). Conclusion In this prospective, randomized, double-blind trial of ATLG in unrelated myeloablative HCT, the incorporation of ATLG did not improve moderate-severe cGVHD-free survival. Moderate-severe cGVHD was significantly lower with ATLG, but PFS and OS also were lower. Additional analyses are needed to understand the appropriate role for ATLG in HCT. PMID- 29040032 TI - Interventions and Outcomes in Patients with Infectious Pseudomonas scleritis: A 10-Year Perspective. AB - PURPOSE: To identify interventional factors associated with improved visual results and faster time to resolution for patients with Pseudomonas scleritis. METHODS: Retrospective study analyzing inciting factors, therapeutic modalities, and outcomes of patients with Pseudomonas scleritis. RESULTS: A total of 24 patients were analyzed; 22 were treated as outpatients. All had resolution of infection and 58% (n = 14) maintained >=20/200 vision. Medical therapy included topical and oral antibiotics; seven received additional subconjunctival injections; two were admitted for IV antibiotics. Patients presenting with >=20/200 vision were more likely to maintain this level of vision (n = 8, 80%) compared to those presenting with severe vision loss (n = 5, 36%) (p = 0.04). A similar proportion of patients who received (n = 8, 61%) and did not receive (n = 5, 39%) oral steroids achieved 20/200 vision or better once infection resolved, p = 1.0. CONCLUSIONS: Pseudomonas scleritis can be successfully managed in the outpatient setting. Oral steroids do not appear harmful in the treatment of this disease. PMID- 29040033 TI - Lower eyelid entropion repair with retractor mobilization and insertion onto the anterior surface of the tarsal plate. AB - PURPOSE: To evaluate a modified surgical technique for the correction of lower eyelid involutional entropion in terms of recurrence rate and relief of symptoms. METHOD: A prospective series of 67 consecutive eyelids in 55 patients who underwent lower eyelid entropion repair using a modified surgical approach not previously published in the literature to the authors' knowledge. The surgical technique, via a skin crease incision, involves disinsertion of the lower eyelid retractors from the tarsus and conjunctiva and suturing the retractors onto the anterior surface of the tarsal plate. Standard excision of redundant lower lid skin and orbicularis muscle was also performed as well as lateral canthal tendon repair. All procedures were performed by a single surgeon (B. A. O'donnell). This study adhered to the principles of the Declaration of Helsinki. RESULTS: There were 67 eyelids with a minimum of 12 months follow-up: of these only 1 patient (1%) required revision surgery (average follow-up 24 months). Four other eyelids had persistent or recurrent irritation (6%) not suggestive of, or secondary to, recurrence. Seven eyelids (10%) had undergone previous operative repair with no further recurrence following their most recent surgery. CONCLUSION: Disinsertion and reattachment of the retractors to the anterior tarsal plate in lower eyelid entropion repair is an effective surgical technique to improve lower eyelid stability. Although minimum follow-up is 12 months and average follow-up 24 months, longer follow-up would further evaluate this technique. PMID- 29040034 TI - The Use of Language in Diabetes Care and Education. AB - Language is powerful and can have a strong impact on perceptions as well as behavior. A task force, consisting of representatives from the American Association of Diabetes Educators and the American Diabetes Association, convened to discuss language in diabetes care and education. The literature supports the need for a language movement in diabetes care and education. There are effective ways of communicating about diabetes. This article provides recommendations for language used by health care professionals and others when discussing diabetes through spoken or written words, whether directed to people with diabetes, colleagues, or the general public, as well as research questions related to language and diabetes. PMID- 29040035 TI - Long-Term Efficacy and Safety of Interferon Alpha-2a in the Treatment of Chinese Patients with Behcet's Uveitis Not Responding to Conventional Therapy. AB - PURPOSE: To investigate the long-term efficacy and safety of interferon alpha-2a (IFNalpha-2a) in Chinese patients with Behcet's uveitis (BU) refractory to conventional therapy. METHODS: In a prospective observational cohort study, 127 patients were treated with an initial dosage of 3 million units per day in the first three months, followed by gradual tapering of the dose. RESULTS: After 3 months of treatment, IFNalpha-2a was shown to be effective in 115 cases (91%). At the end of the 1-year follow-up, the frequency of ocular relapses decreased to 1.59 +/- 1.68 per year (ranging 0-6) (p < 0.001), as compared to 5.09 +/- 2.51 per year (ranging 3-15). Moreover, the frequency of oral ulcer relapses also decreased to 2.49 +/- 1.84 per year (ranging 0-6) (p < 0.001), as compared to 8.20 +/- 3.72 per year (ranging 2-10). Visual improvement or stability was observed in 32 patients (59%) in these 54 patients. During a mean follow-up of 11 months (range 3-33), the mean final VA (logMAR) had progressed from 1.0 logMAR to 0.8 logMAR in all treated patients. CONCLUSIONS: Long-term low dose of IFNalpha 2a is useful in treating Chinese BU patients who do not respond adequately to conventional therapy. PMID- 29040036 TI - Septic thrombosis of cavernous sinus extended to the ipsilateral internal jugular vein and transversal sinus with favorable outcome: Clinical and radiological features of a Lemierre syndrome. AB - An 86-year-old patient was hospitalized for fever and left acute orbital syndrome (red eye with moderate visual impairment, chemosis, ophthalmoplegia without proptosis, or any fundus involvement). CT scan showed superior ophthalmic vein and cavernous sinus enlargement complicating ipsilateral sphenoidal sinusitis. Magnetic resonance imaging (MRI) demonstrated the left cavernous sinus thrombosis extended to the ipsilateral jugular vein and transversal sinus (Lemierre syndrome). Intravenous broad-spectrum antibiotics and curative anticoagulation were prescribed. Blood cultures allowed the identification of Streptococcus intermedius and Staphylococcus warneri species. Evolution was favorable and the patient was discharged 3 weeks after. Antibiotics and anticoagulation were carried out for a total duration of 4 and 12 weeks, respectively. Lemierre syndrome is a potentially life-threatening emergency rarely encountered; thus, ophthalmologists should be cognizant of clinical and radiological features. Broad spectrum antibiotics are the mainstay of treatment. Curative anticoagulation may be added if no blood coagulation disorder nor bleeding on neuroimaging has been identified. PMID- 29040037 TI - Influence of Risk Category and Screening Round on the Performance of an MR Imaging and Mammography Screening Program in Carriers of the BRCA Mutation and Other Women at Increased Risk. AB - Purpose To evaluate the real-life performance of a breast cancer screening program for women with different categories of increased breast cancer risk with multiple follow-up rounds in an academic hospital with a large screening population. Materials and Methods Screening examinations (magnetic resonance [MR] imaging and mammography) for women at increased breast cancer risk (January 1, 2003, to January 1, 2014) were evaluated. Risk category, age, recall for workup of screening-detected abnormalities, biopsy, and histopathologic diagnosis were recorded. Recall rate, biopsy rate, positive predictive value of recall, positive predictive value of biopsy, cancer detection rate, sensitivity, and specificity were calculated for first and follow-up rounds. Results There were 8818 MR and 6245 mammographic examinations performed in 2463 women. Documented were 170 cancers; of these, there were 129 screening-detected cancers, 16 interval cancers, and 25 cancers discovered at prophylactic mastectomy. Overall sensitivity was 75.9% including the cancers discovered at prophylactic mastectomy (95% confidence interval: 69.5%, 82.4%) and 90.0% excluding those cancers (95% confidence interval: 83.3%, 93.7%). Sensitivity was lowest for carriers of the BRCA1 mutation (66.1% and 81.3% when including and not including cancers in prophylactic mastectomy specimens, respectively). Specificity was higher at follow-up (96.5%; 95% confidence interval: 96.0%, 96.9%) than in first rounds (85.1%; 95% confidence interval: 83.4%, 86.5%) and was high for both MR imaging (97.1%; 95% confidence interval: 96.7%, 97.5%) and mammography (98.7%; 95% confidence interval: 98.3%, 99.0%). Positive predictive value of recall and positive predictive value of biopsy were lowest in women who had only a family history of breast cancer. Conclusion Screening performance was dependent on risk category. Sensitivity was lowest in carriers of the BRCA1 mutation. The specificity of high-risk breast screening improved at follow-up rounds. (c) RSNA, 2017 Online supplemental material is available for this article. PMID- 29040038 TI - Ferumoxytol-enhanced MR Angiography for Vascular Access Mapping before Transcatheter Aortic Valve Replacement in Patients with Renal Impairment: A Step Toward Patient-specific Care. AB - Purpose To assess the technical feasibility of the use of ferumoxytol-enhanced (FE) magnetic resonance (MR) angiography for vascular mapping before transcatheter aortic valve replacement in patients with renal impairment. Materials and Methods This was an institutional review board-approved and HIPAA compliant study. FE MR angiography was performed at 3.0 T or 1.5 T. Unenhanced computed tomographic (CT) images were used to overlay vascular calcification on FE MR angiographic images as composite fused three-dimensional data. Image quality of the subclavian and aortoiliofemoral arterial tree and confidence in the assessment of calcification were evaluated by using a four-point scale (4 = excellent vascular definition or strong confidence). Signal intensity nonuniformity as reflected by the heterogeneity index (ratio between the mean standard deviation of luminal signal intensity and the mean luminal signal intensity), signal-to-noise ratio, and consistency of luminal diameter measurements were quantified. Findings at FE MR angiography were compared with pelvic angiograms. Results Twenty-six patients underwent FE MR angiography without adverse events. A total of 286 named vascular segments were scored. The image quality score was 4 for 99% (283 of 286) of the segments (kappa = 0.9). There was moderate to strong confidence in the ability to assess vascular calcific morphology in all studies with complementary unenhanced CT. The steady state luminal heterogeneity index was low, and signal-to-noise ratio was high. Interobserver luminal measurements were reliable (intraclass correlation coefficient, 0.98; 95% confidence interval: 0.98, 0.99). FE MR angiographic findings were consistent with correlative pelvic angiograms in all 16 patients for whom the latter were available. Conclusion In patients with renal impairment undergoing transcatheter aortic valve replacement, FE MR angiography is technically feasible and offers reliable vascular mapping without exposure to iodine- or gadolinium-based contrast agents. Thus, the total cumulative dose of iodine-based contrast material is minimized and the risk of acute nephropathy is reduced. (c) RSNA, 2017 Online supplemental material is available for this article. PMID- 29040039 TI - Breast Cancer Risk Associations with Digital Mammographic Density by Pixel Brightness Threshold and Mammographic System. AB - Purpose To compare three mammographic density measures defined by different pixel intensity thresholds as predictors of breast cancer risk for two different digital mammographic systems. Materials and Methods The Korean Breast Cancer Study included 398 women with invasive breast cancer and 737 control participants matched for age at mammography (+/-1 year), examination date, mammographic system, and menopausal status. Mammographic density was measured by using the automated Laboratory for Individualized Breast Radiodensity Assessment (LIBRA) software and the semiautomated Cumulus software at the conventional threshold (Cumulus) and at increasingly higher thresholds (Altocumulus and Cirrocumulus, respectively). Measures were Box-Cox-transformed and adjusted for age, body mass index, and menopausal status. Conditional logistic regression was used to estimate risk associations. For calculation of measures of predictive value, the change in odds per standard deviation (OPERA) and the area under the receiver operating characteristic curve (AUC) were used. Results For dense area, with use of the direct conversion system the OPERAs were 1.72 (95% confidence interval [CI]: 1.38, 2.15) for LIBRA, 1.58 (95% CI: 1.27, 1.97) for Cumulus, 2.04 (95% CI: 1.60, 2.59) for Altocumulus, and 3.48 (95% CI: 2.45, 4.47) for Cirrocumulus (P < .001). The corresponding AUCs were 0.70, 0.69, 0.76, and 0.89, respectively. With use of the indirect conversion system, the corresponding OPERAs were 1.50 (95% CI: 1.28, 1.76), 1.36 (95% CI: 1.16, 1.59), 1.40 (95% CI: 1.19, 1.64), and 1.47 (95% CI: 1.25, 1.73) (P < .001) and the AUCs were 0.64, 0.60, 0.61, and 0.63, respectively. Conclusion It is possible that mammographic density defined by higher pixel thresholds could capture more risk-predicting information with use of a direct conversion mammographic system; the mammographically bright, rather than white, regions are etiologically important. (c) RSNA, 2017. PMID- 29040040 TI - Prevalence of Carotid Web in Patients with Acute Intracranial Stroke Due to Intracranial Large Vessel Occlusion. AB - Purpose To investigate the prevalence of symptomatic carotid web in patients with acute ischemic stroke due to intracranial large vessel occlusion, to determine the clinical and imaging profile of patients with carotid web as well as their association with ischemic stroke, and to determine the interobserver agreement in the assessment of carotid webs. Materials and Methods All patients (n = 500) of the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands (MR CLEAN) in whom the carotid bifurcation could be assessed (n = 443) were included. The presence of a carotid web at the carotid bifurcations was evaluated at computed tomographic (CT) angiography. Demographics, clinical characteristics, and imaging baseline characteristics were presented by descriptive statistics for patients with an identified carotid web. Interobserver agreement in the detection of carotid webs was examined by using kappa statistics. Results Eleven (2.5%) carotid webs were found at the symptomatic side and two (0.5%) carotid webs were found at the asymptomatic side. Ten (91%) patients with a symptomatic carotid web were female. Nine patients with a symptomatic carotid web did not have major risk factors or other causes for ischemic stroke (82%). Fair to good interobserver agreement (kappa, 0.72) was observed for diagnosing carotid webs at CT angiography. Conclusion Carotid webs at the symptomatic carotid bifurcation were observed in 2.5% of the patients with acute ischemic stroke due to large vessel occlusion and were mostly diagnosed in female patients with a fair to good interobserver agreement. (c) RSNA, 2017 Clinical trial registration nos. NTR1804 and ISRCTN10888758 Online supplemental material is available for this article. PMID- 29040041 TI - Coordinating Care for Students With Chronic Conditions: CLUE #1. AB - Care coordination is an important part of school nurses' responsibilities, but coordinating that care for students in schools with chronic conditions is more complex than what we learned in nursing school. This article is the second in a series of articles for NASN School Nurse that will delve into how to apply evidence-based practice (EBP) to school nursing. The article focuses on the first step of EBP: asking the question. As the series progresses, we encourage you to apply the steps to a situation in your setting or even use the series to increase discussions at nursing staff meetings so all can benefit. PMID- 29040042 TI - Mental Health First Aid: A Useful Tool for School Nurses. AB - School nurses address mental health issues of youth on a daily basis. These mental health issues include substance abuse, anxiety, depression, and even suicidal ideation. Mental health first aid is a process that seeks to help medical professionals and laypeople recognize and address someone that is having a mental health or substance abuse crisis. This article will describe an experience with a student having suicidal ideations and how the mental health action plan was used. PMID- 29040043 TI - Depression Screening in the School Setting: Identification of the Depressed Adolescent. AB - Adolescent depression is a silent epidemic in this country. Untreated depression has detrimental effects on physical health, psychosocial well-being, and academic productivity. It is important for school nurses to be able to recognize depression and refer students promptly for treatment. This article and its associated learning module will provide school nurses with updated information on adolescent depression, discuss barriers in depression screening, use of the PHQ-9 (Patient Health Questionaire-9 Item) as an evidence-based depression screening tool in the educational setting, and the important role of school nurses in depression screening. It is anticipated that by increasing awareness and knowledge about adolescent depression and providing training in the use of an evidence-based screening tool, school nurses will have greater confidence in identifying and referring students in need. (A free online depression screening education module developed by the lead author is available at https://sites.google.com/view/depressionscreeningtraining .). PMID- 29040044 TI - Step Up & Be Counted! Strategies for Data Collection. AB - Step Up & Be Counted! (Step Up!) is an innovative project to collect nationally standardized data from the daily documentation of school nurses throughout the United States. Step Up! provides the standardization needed to promote an "apples to apples" analysis of school health resources, interventions, and outcomes across the United States. While some states have collected data for decades and have an effective infrastructure in place, other states are new to data collection and are creating processes to support data collection. Designated State Data Champions have volunteered to collect aggregated de-identified data from school districts throughout their state. The following is a discussion of some of the data collection innovations shared by Designated State Data Champions at the 2017 NASN Annual Conference. PMID- 29040045 TI - Being a Grateful Leader. PMID- 29040048 TI - Pulmonary Vascular Research Institute World Congress 2017 Scientific Abstracts. PMID- 29040047 TI - Ultra-Widefield Fluorescein Angiography in Intermediate Uveitis. AB - PURPOSE: To examine associations between pattern of vascular leakage on ultrawide field fluorescein angiography (UWFFA) and visual acuity, cystoid macular edema (CME), and inflammatory activity in intermediate uveitis. METHODS: Single center cross-sectional, retrospective review of medical records, spectral domain optical coherence tomography (SD-OCT) and angiographic images of intermediate uveitis patients who underwent UWFFA over a 12-month period. RESULTS: Forty-one eyes from 24 patients were included. Twelve eyes (29%) exhibited peripheral leakage, 26 eyes (64%) had diffuse leakage and three eyes (7%) had no leakage. Diffuse leakage was associated with 0.2 logMAR worse visual acuity than peripheral leakage (p = 0.02). There was no statistically significant difference in the odds of having CME when diffuse leakage was compared to peripheral leakage. CONCLUSION: UWFFA identifies retinal vascular pathology in intermediate uveitis not present on clinical examination. Diffuse retinal vascular leakage was associated with worse visual acuity when compared to peripheral and no leakage patterns. PMID- 29040049 TI - Recent trends in common chemical feed and food contaminants in Israel. AB - In February 2014 a new law was approved by the Israeli parliament, namely the Control of Animal Feed Law. The law intends to regulate the production and marketing of animal feed. In preparation for the law's implementation in 2017, we have assessed the current feed and food safety challenges in Israel in recent years in association with the presence of common undesirable contaminants in various common feed and food commodities. Tight collaboration between regulatory authorities and feed/food industry, enhanced feed and food quality monitoring, transparency of survey results and readily accessible and reliable information for the public about health hazards of chemical contaminants, will guarantee the safety and quality of food and feed. PMID- 29040050 TI - Latent Autoimmune Diabetes in Adults in North Indian Region: Assessment of beta Cell Function, Metabolic and Immunological Features. AB - BACKGROUND: We undertook a study to assess beta-cell function, metabolic and immunological features of patients with latent autoimmune diabetes in adults (LADA) and investigate heterogeneity within LADA based on low and high glutamic acid decarboxylase autoantibodies (GADA) titers. METHODS: A total of 139 patients with adult-onset diabetes were examined cross-sectionally in the National capital region of Northern India. Medical history of all subjects was reviewed with the aim of collecting clinical data. Glucose, glycosylated hemoglobin, lipid profile, creatinine, C-peptide, and GADA were measured in 10-12 hrs fasting blood sample. RESULTS: Assessment of metabolic features revealed lower mean systolic blood pressure in subjects with LADA than in those with type 2 diabetes (DM2). Mean triglyceride levels were lower in LADA subjects compared to DM2 subjects. Compared to DM2 subjects, prevalence of metabolic syndrome (MS) was also lower in LADA subjects. Compared to GADA-low, all GADA-high patients were male, had lower waist circumference, fasting C-peptide (FCP), and prevalence of MS. Compared to DM2 patients, GADA-high patients were younger, had lower age at onset, body mass index, waist circumference, systolic blood pressure, triglycerides, FCP, and prevalence of MS. The rate of patients on insulin was higher in GADA-high compared to DM2. There were no significant differences between characteristics of DM2 and GADA-low patients. CONCLUSIONS: Our results indicate that LADA patients have distinct metabolic features with lower residual beta-cell function than DM2 patients. GADA titer is important parameter in defining the severity of the disease as patients with high GADA titer tend to have significant beta-cell impairment. PMID- 29040051 TI - Two Novel CAPN5 Variants Associated with Mild and Severe Autosomal Dominant Neovascular Inflammatory Vitreoretinopathy Phenotypes. AB - PURPOSE: We report two new CAPN5 mutations associated with a phenotype of Autosomal Dominant Neovascular Inflammatory Vitreoretinopathy. METHODS: We performed next generation sequencing in two patients with ADNIV phenotype; the variants identified were explored further. RESULTS: Patient 1 was heterozygous for CAPN5 c.799G>A, p.(Gly267Ser). Patient 2 was heterozygous for CAPN5 c.1126G>A, p.(Gly376Ser). Both amino acids are highly conserved across species. Patient 1 had a severe phenotype and his mutation lies within the protein's catalytic domain. Patient 2 had a mild phenotype and her mutation is the first ADNIV-causing mutation to be described in the regulatory domain of Calpain-5. CONCLUSIONS: Our findings potentially add two new ADNIV-causing CAPN5 mutations to the three previously described. We recommend CAPN5 genetic testing in all patients with a possible ADNIV phenotype, to develop our understanding of Calpain 5; a protein which could potentially provide therapeutically accessible targets for the treatment of many leading causes of blindness. PMID- 29040052 TI - Partial or entire: Distinct responses of two types of chloroplast autophagy. AB - Autophagy carries out intracellular degradation of cytoplasmic components, which is important for the removal of dysfunctional organelles and for efficient nutrient recycling in eukaryotic cells. Most proteins in plant green tissues are found in chloroplasts, mainly as photosynthetic proteins that constantly accumulate damage caused by sunlight. Our recent study investigated the involvement of autophagy in the turnover of damaged chloroplasts and found that entire photodamaged chloroplasts are transported into the vacuole for degradation via an autophagy process termed chlorophagy. Our previous studies also established that autophagy can also degrade chloroplast components piecemeal: chloroplast stroma is transported for degradation via autophagy vesicles termed Rubisco-containing bodies (RCB). During sugar starvation-induced senescence in darkened leaves, the RCB pathway is preferentially active. By contrast, we observed active chlorophagy without prior induction of RCB production in photodamaged leaves. These distinct responses between the RCB pathway and chlorophagy support the notion that the induction of the partial-type and entire organelle-type chloroplast autophagy are differentially regulated by individual upstream molecules. This finding further suggests that the two types of autophagy are coordinated to achieve the controlled chloroplast turnover in response to specific conditions. PMID- 29040053 TI - Periostin as a Biomarker for Nasal Polyps in Chronic Rhinosinusitis. AB - Objective Periostin is an extracellular matrix protein that is elevated in the sinonasal tissues of patients with chronic rhinosinusitis (CRS). The purpose of this study was to determine whether serum periostin could serve as a molecular biomarker of nasal polyp burden in sinonasal disease. Study Design Prospective cohort study. Setting Academic medical center. Subjects and Methods Serum periostin levels were measured by ELISA on blood samples collected from patients undergoing sinus surgery for CRS (n = 71), further stratified by phenotype as defined by nasal polyps and asthma. Results were compared with assays performed on control subjects (n = 62). Results Mean serum periostin levels were markedly elevated in patients with CRS versus controls (66.1 ng/mL [95% CI, 51.6-80.6] vs 38.7 ng/mL [95% CI, 34.4-42.9], respectively, P = .004). In addition, mean periostin levels were significantly higher in CRS patients with nasal polyps as compared with those without polyps (94.8 ng/mL [95% CI, 67.3-122.4] vs 41.1 ng/mL [95% CI, 35.2-47.0], respectively, P < .001). Periostin levels did not correlate with sex ( P = .473), smoking history ( P = .748), aspirin-exacerbated respiratory disease status ( P = .136), oral steroid use within 1 month of surgery ( P = .281), use of topical steroid nasal spray ( P = .864), or number of prior sinus operations ( P = .973). Conclusion Serum periostin appears to be a novel molecular biomarker for the presence of nasal polyps and may serve as an indicator of CRS endotypes. PMID- 29040054 TI - Pediatric NUT-midline carcinoma: Therapeutic success employing a sarcoma based multimodal approach. AB - A subset of poorly differentiated squamous cell carcinomas, NUT midline carcinomas (NMC) are characterized by a translocation t(15;19)(q13;p13) [ 1 ]. The prognosis is generally dismal [ 2 ] and therapeutic success has been limited to exceptional cases [ 3 ]. We present two cases of pediatric NMC from two different institutions treated according to a multimodal sarcoma approach involving surgery, chemotherapy, and focal radiotherapy. One patient has remained in complete continuous remission for over 6 years, while the other is in CR in early follow-up off therapy. Our proposed multimodal strategy apparently meets the aggressive biologic nature of NMC and should be considered for further evaluation in this context potentially in the setting of a clinical trial. PMID- 29040055 TI - The Empirical Case for Acquiescing to Intuition. AB - Will people follow their intuition even when they explicitly recognize that it is irrational to do so? Dual-process models of judgment and decision making are often based on the assumption that the correction of errors necessarily follows the detection of errors. But this assumption does not always hold. People can explicitly recognize that their intuitive judgment is wrong but nevertheless maintain it, a phenomenon known as acquiescence. Although anecdotes and experimental studies suggest that acquiescence occurs, the empirical case for acquiescence has not been definitively established. In four studies-using the ratio-bias paradigm, a lottery exchange game, blackjack, and a football coaching decision-we tested acquiescence using recently established criteria. We provide clear empirical support for acquiescence: People can have a faulty intuitive belief about the world (Criterion 1), acknowledge the belief is irrational (Criterion 2), but follow their intuition nonetheless (Criterion 3)-even at a cost. PMID- 29040056 TI - An Integrated Control Strategy Takes Clonorchis sinensis Under Control in an Endemic Area in South China. AB - Clonorchis sinensis is an important foodborne zoonosis worldwide and prevalent in China for more than 2000 years. According to the experience of controlling Schistosoma japonica, China started to establish the integrated control strategy for C. sinensis in endemic areas. Lou village, the largest village in Shenzhen city in South China was taken as a pilot site. This longitudinal study assessed the infection status of C. sinensis among people and intermediate hosts from 2006 to 2014 in Lou village. After a continuous intervention with the integrated control strategy, the prevalence of C. sinensis decreased significantly to 2.01% in 2014. The infection intensity also reduced significantly with eggs per gram varying from 45.6 +/- 3.4 in 2010 to 21.7 +/- 1.6 in 2012. There is also a statistically significant decrease of the prevalence of C. sinensis metacercariae in fish hosts from 16.51% in 2008 before the intervention to 5.33% in 2014. All the old-styled toilets were replaced by sanitary ones with a harmless processing design in 2014. No viable parasite eggs were detected in stool samples from the reconstructed toilets. Health education played an important role in changing the eating habits among the local residents, with a significant decrease in the prevalence of eating raw fish from 91.99% in 2008 to 59.87% in 2014. The evaluation suggested that the integrated strategy we have performed in Lou village is effective in controlling the C. sinensis infection and maintaining the infection rate at a lower level, which can be promoted in other endemic areas. PMID- 29040057 TI - Validity of algorithm for estimating left sided filling pressures on echocardiography in a population referred for pulmonary arterial hypertension. AB - The determination of LV filling pressure is integral to the diagnosis of pulmonary arterial hypertension (PAH). The American Society of Echocardiography (ASE) has devised algorithms for their estimation. We aimed to test these algorithms in a population referred for suspected PAH. In our retrospective study, we evaluated the accuracy of the ASE Algorithms compared to right heart catheterization done within three months, in patients seen during 2006-2014. All echocardiograms were classified as showing normal, elevated or indeterminate filling pressures. Those with indeterminate pressures were excluded. We evaluated the diagnostic properties of this algorithm to predict a pulmonary artery wedge pressure (PAWP) and left ventricular end diastolic pressure (LVEDP) >15 mmHg. A total of 94 patients were included. The ASE algorithms yielded indeterminate results in 50 (53.2%) patients. This occurred more commonly in older patients and patients with cardiovascular comorbidities. The algorithm had a high sensitivity for predicting an elevated PAWP at 89.5% (95% confidence interval [CI] = 66.9 98.7) and an elevated LVEDP at 100% (95% CI = 76.8-100). The algorithm had a negative predictive value of 81.8% and 100% for predicting an elevated PAWP (95% CI = 52.4-94.8) and LVEDP, respectively, but a poor positive predictive value. The ASE algorithm for predicting LV filling pressures often cannot be applied in populations with suspected PAH. When they are interpretable, they have a high negative predictive value for elevated PAWP and LVEDP. We recommend caution when using these algorithms in populations with suspected PAH. PMID- 29040058 TI - Recommendations for Laboratory Containment and Management of Gene Drive Systems in Arthropods. AB - Versatile molecular tools for creating driving transgenes and other invasive genetic factors present regulatory, ethical, and environmental challenges that should be addressed to ensure their safe use. In this article, we discuss driving transgenes and invasive genetic factors that can potentially spread after their introduction into a small proportion of individuals in a population. The potential of invasive genetic factors to increase their number in natural populations presents challenges that require additional safety measures not provided by previous recommendations regarding accidental release of arthropods. In addition to providing physical containment, invasive genetic factors require greater attention to strain management, including their distribution and identity confirmation. In this study, we focus on insects containing such factors with recommendations for investigators who are creating them, institutional biosafety committees charged with ensuring safety, funding agencies providing support, those managing insectaries handling these materials who are responsible for containment, and other persons who will be receiving insects-transgenic or not from these facilities. We give specific examples of efforts to modify mosquitoes for mosquito-borne disease control, but similar considerations are relevant to other arthropods that are important to human health, the environment, and agriculture. PMID- 29040060 TI - Structure and function of the human parvulins Pin1 and Par14/17. AB - Parvulins belong to the family of peptidyl-prolyl cis/trans isomerases (PPIases) assisting in protein folding and in regulating the function of a broad variety of proteins in all branches of life. The human representatives Pin1 and Par14/17 are directly involved in processes influencing cellular maintenance and cell fate decisions such as cell-cycle progression, metabolic pathways and ribosome biogenesis. This review on human parvulins summarizes the current knowledge of these enzymes and intends to oppose the well-studied Pin1 to its less well examined homolog human Par14/17 with respect to structure, catalytic and cellular function. PMID- 29040059 TI - Circadian rhythm genes mediate fenvalerate-induced inhibition of testosterone synthesis in mouse Leydig cells. AB - Fenvalerate (Fen), a widely used pesticide, is known to impair male reproductive functions by mechanisms that remain to be elucidated. Recent studies indicated that circadian clock genes may play an important role in successful male reproduction. The aim of this study was to determine the effects of Fen on circadian clock genes involved in the biosynthesis of testosterone using TM3 cells derived from mouse Leydig cells. Data demonstrated that the circadian rhythm of testosterone synthesis in TM3 cells was disturbed following Fen treatment as evidenced by changes in the circadian rhythmicity of core clock genes (Bmal1, Rev-erbalpha, Roralpha). Further, the observed altered rhythms were accompanied by increased intracellular Ca2+ levels and modified steroidogenic acute regulatory (StAR) mRNA expression. Thus, data suggested that Fen inhibits testosterone synthesis via pathways involving intracellular Ca2+ and clock genes (Bmal1, Rev-Erbalpha, Roralpha) as well as StAR mRNA expression in TM3 cells. PMID- 29040061 TI - Validation of a novel biomechanical test bench for the knee joint with six degrees of freedom. AB - A novel biomechanical test bench has been developed for in-vitro evaluation of the knee joint. The test bench allows the kinematics of the knee joint to be studied in all six degrees of freedom. Flexion-extension knee movements are induced by quadriceps and hamstring muscle forces simulated by five pneumatic cylinders. The kinematics of the knee and the actively applied muscle forces are measured simultaneously. The aim of this study was to validate the sensitivity and reproducibility of this novel test bench. Four fresh frozen human knees were tested three times, each with seven flexion-extension cycles between 5 degrees and 60 degrees . After the native knees had been tested, the posterior cruciate ligament and then the lateral collateral ligament were dissected. The injured knees were tested in identical conditions [3*(7*5 degrees -60 degrees )] in order to evaluate whether the test bench is capable of detecting differences in knee kinematics between a native state and an injured one. With regard to reproducibility, the novel test bench showed almost perfect agreement for each specimen and for all states and flexion angles. In comparison with the native knees, the injured knees showed significant differences in knee kinematics. This validated novel test bench will make it possible to investigate various knee pathologies, as well as current and newly developed treatment options. PMID- 29040062 TI - Influence of delayed separation of plasma from whole blood on Cu, I, Mn, Se, and Zn plasma concentrations. PMID- 29040063 TI - Validation of the Six Sigma Z-score for the quality assessment of clinical laboratory timeliness. AB - BACKGROUND: The International Federation of Clinical Chemistry and Laboratory Medicine has introduced in recent times the turnaround time (TAT) as mandatory quality indicator for the postanalytical phase. Classic TAT indicators, namely, average, median, 90th percentile and proportion of acceptable test (PAT), are in use since almost 40 years and to date represent the mainstay for gauging the laboratory timeliness. In this study, we investigated the performance of the Six Sigma Z-score, which was previously introduced as a device for the quantitative assessment of timeliness. METHODS: A numerical simulation was obtained modeling the actual TAT data set using the log-logistic probability density function. Five thousand replicates for each size of the artificial TAT random sample (n=20, 50, 250 and 1000) were generated, and different laboratory conditions were simulated manipulating the PDF in order to generate more or less variable data. The Z-score and the classic TAT indicators were assessed for precision (%CV), robustness toward right-tailing (precision at different sample variability), sensitivity and specificity. RESULTS: Z-score showed sensitivity and specificity comparable to PAT (~80% with n>=250), but superior precision that ranged within 20% by moderately small sized samples (n>=50); furthermore, Z-score was less affected by the value of the cutoff used for setting the acceptable TAT, as well as by the sample variability that reflected into the magnitude of right-tailing. CONCLUSIONS: The Z-score was a valid indicator of laboratory timeliness and a suitable device to improve as well as to maintain the achieved quality level. PMID- 29040064 TI - Strong impact on plasma protein profiles by precentrifugation delay but not by repeated freeze-thaw cycles, as analyzed using multiplex proximity extension assays. AB - Background A number of factors regarding blood collection, handling and storage may affect sample quality. The purpose of this study was to assess the impact on plasma protein profiles by delayed centrifugation and plasma separation and multiple freeze-thaw cycles. Methods Blood samples drawn from 16 healthy individuals were collected into ethylenediaminetetraacetic acid tubes and kept either at 4 degrees C or 22 degrees C for 1-36 h prior to centrifugation. Plasma samples prepared 1 h after venipuncture were also subjected to two to eight cycles of freezing at -80 degrees C and thawing at 22 degrees C. Multiplex proximity extension assay, an antibody-based protein assay, was used to investigate the influence on plasma proteins. Results Up to 36 h delay before blood centrifugation resulted in significant increases of 16 and 40 out of 139 detectable proteins in samples kept at 4 degrees C or 22 degrees C, respectively. Some increases became noticeable after 8 h delay at 4 degrees C but already after 1 h at 22 degrees C. For samples stored at 4 degrees C, epidermal growth factor (EGF), NF-kappa-B essential modulator, SRC, interleukin 16 and CD6 increased the most, whereas the five most significantly increased proteins after storage at 22 degrees C were CD40 antigen ligand (CD40-L), EGF, platelet-derived growth factor subunit B, C-X-C motif chemokine ligand 5 and matrix metallopeptidase 1 (MMP1). Only matrix metallopeptidase 7 (MMP7) decreased significantly over time and only after storage at 22 degrees C. No protein levels were found to be significantly affected by up to eight freeze-thaw cycles. Conclusions Plasma should be prepared from blood after a limited precentrifugation delay at a refrigerated temperature. By contrast, the influence by several freeze-thaw cycles on detectable protein levels in plasma was negligible. PMID- 29040065 TI - Tumor microenvironment and systemic disease: a dual target in medical oncology (also in the case of biomarkers). PMID- 29040066 TI - Evaluation of oral multi-herbal preparation of Dashmoolarishta on mice model of osteoarthritis. AB - BACKGROUND: Osteoarthritis (OA) is a chronic progressive disease commonly affecting the hip and knee joints. Although synthetic drugs are available and afford symptomatic relief, their side effects pose limitations to their continuous use. So, this research was focused on extracting drugs from indigenous medicinal plants that could have a beneficial effect on osteoarthritis. Dashmoolarishta is one such preparation whose effects have never been studied in comparison with recent drugs like hyaluronic acid (HA), hence this particular study was undertaken. The aim of this study was to evaluate the effects of Dashmoolarishta compared with HA on joint pathology and pain behavior in monosodiumiodoacetate (MIA)-induced OA in experimental mice. METHODS: The study was initiated after obtaining permission from the Animal Ethics Committee. This study was based on the MIA model of osteoarthritis, with mice being divided into five groups viz.: disease control (DC), Dasahmoolarishta high dose (HD) and low dose (LD), sham control (SC) and HA. The OA of the knee joint was induced in these mice using monosodiumiodoacetate. Seven days after induction, animals were subjected to weekly behavioral tests, daily oral Dashmoolarishta, and biweekly HA administration from weeks 2-4. At the end of the 4th week, histopathological examination of the knee joints was done. RESULTS: DC showed significant osteoarthritic changes. At week 4, the behavioral tests and histopathology results of all groups were found to be significant. A significant difference (p<0.05) was found between DC vs. SC, HA, HD, LD for open field test, Rota rod test, knee joint diameter, and Cat walk test. Dashmoolarishta HD and LD showed significant improvement in pain, as assessed by behavioral tests (p<0.05) and pathology, as assessed by knee joint histopathology (p<0.05). CONCLUSIONS: Oral Dashmoolarishta showed reduction in pain and disease activity in MIA-induced osteoarthritis in mice model. PMID- 29040067 TI - Early-onset severe obesity due to complete deletion of the leptin gene in a boy. AB - BACKGROUND: Monogenic obesity results from single gene mutations. Extreme obesity starting at an early age, especially in infancy, which is associated with endocrinopathy and metabolic disturbances is key to the diagnosis of monogenic obesity. CASE PRESENTATION: A 6-month-old boy was admitted to our clinic with severe obesity and food craving. He was born with a birth weight of 3400 g to first-cousin parents. He started to gain weight at an abnormal rate at the age of 2 months. He had hyperinsulinemia, dyslipidemia and grade 2 hepatosteatosis. He had a 7-year-old, healthy brother with a normal body weight. Because of severe early-onset obesity and abnormal food addiction, his leptin level was measured and found to be 0.55 ng/mL (normal range for his age and sex is 0.7-21 ng/mL). A LEP gene mutation was screened for and a gross leptin gene deletion was detected. To date, no report on a gross deletion of the LEP gene has been published in the literature. CONCLUSIONS: To the best of our knowledge, a gross deletion of the LEP gene has not been reported so far in the literature. Here we report a unique case with congenital leptin deficiency. Thus, clinicians should search for monogenic obesity in patients with early-onset severe obesity and endocrinopathy. Measuring the leptin level could aid clinicians to identify children with monogenic obesity. PMID- 29040068 TI - Secular trends in height, weight and body mass index of primary school children in Turkey between 1993 and 2016. AB - BACKGROUND: The aim of the study was to analyze the secular trends in height, weight and body mass index (BMI) of children in a Turkish primary school in a 23 year time interval. METHODS: The height, weight and BMI of 1099 children between 7 and 15 years old were measured. Data were compared to those of children of the same ages from previous measurements carried out in 1993 (867 children) and in 2003 (1214 children) in the same school. The changes in weight, height and BMI were determined and analyzed statistically. RESULTS: Weight increments between 7.7 and 16.2 kg/23 years and height increments between 1.1 and 8.3 cm/23 years were observed in boys. For girls, weight increments between 6.5 and 13.4 kg/23 years and height increments between 1.3 and 7.2 cm/23 years were indicated. Usually, there were significant height increments between 1993 and 2016 in both genders. However, there were no significant differences in height between 2003 and 2016 for all age groups. Furthermore, there were significant differences in BMI measurements in all age and gender groups between 1993 and 2016. CONCLUSIONS: The secular ascending trend in height seems to stop between 2003 and 2016; however, increments in weight and mean BMI tend to continue in Turkish primary school children and adolescents. PMID- 29040069 TI - Effects of 1-year growth hormone replacement therapy on thyroid volume and function of the children and adolescents with idiopathic growth hormone deficiency. AB - BACKGROUND: There are different opinions about the effects of growth hormone replacement therapy (GHRT) on thyroid function and volume. This study aimed to assess the effects of GHRT on thyroid volume and function in the children and adolescents with growth hormone (GH) deficiency. METHODS: A total of 29 patients diagnosed with GH deficiency were enrolled in the study. The control group consisted of 29 cases matched for age, gender and pubertal period with the patients. Thyroid function tests and insulin-like growth factor levels were measured, simultaneously thyroid volumes were assessed by ultrasonography at the initiation period and at the end of GHRT. RESULTS: Thyroid volumes of the patient group was -0.55+/-1.1 standard deviations (SDs) initially; whereas at the end of 1 year it was found to be -0.29+/-1.29 SDs and both SDs of thyroid volumes did not differ significantly. The SDs of thyroid volume of the control group was 0.85+/-1.03 SDs initially and -0.72+/-0.85 SDs at the end of 1 year; and they did not differ significantly. On the other hand, after GHRT of 1 year, thyroid stimulating hormone (TSH) and free thyroxine (T4) levels decreased. CONCLUSIONS: It was observed that SDs of thyroid gland volumes did not change in GH deficient children and adolescents after GHRT. PMID- 29040070 TI - Modulating the electronic and optical properties of monolayer arsenene phases by organic molecular doping. AB - Recently, arsenene monolayer structure of the arsenic with two phases has displayed semiconducting behavior. We have systematically investigated the electronic and optical properties of single-layer arsenene with two types of functionalized organic molecules; an electrophilic molecule [tetracyanoquinodimethane (TCNQ)] and a nucleophilic molecule [tetrathiafulvalene (TTF)], as an electron acceptor and electron donor, respectively. The interfacial charge transfer between the arsenene monolayer and TCNQ/TTF molecules extensively reduces the band gap of arsenene and accordingly resulted in a p- or n-type semiconducting behavior, respectively. We have also performed the interfacial charge transfer from organic molecules to monolayer arsenene and vice versa. The interfacial surface molecular modification has established an efficient way to develop the light harvesting of arsenene in different polarization directions. Our theoretical investigation suggests that such n- and p-type arsenene semiconductors would broaden the applications in the field of nanoelectronic and optoelectronic devices such as photodiodes and it is also useful for constructing functional electronic systems. PMID- 29040071 TI - Prevalence and direct costs of emergency department visits and hospitalizations for selected diseases that can be transmitted by water, United States. AB - National emergency department (ED) visit prevalence and costs for selected diseases that can be transmitted by water were estimated using large healthcare databases (acute otitis externa, campylobacteriosis, cryptosporidiosis, Escherichia coli infection, free-living ameba infection, giardiasis, hepatitis A virus (HAV) infection, Legionnaires' disease, nontuberculous mycobacterial (NTM) infection, Pseudomonas-related pneumonia or septicemia, salmonellosis, shigellosis, and vibriosis or cholera). An estimated 477,000 annual ED visits (95% CI: 459,000-494,000) were documented, with 21% (n = 101,000, 95% CI: 97,000 105,000) resulting in immediate hospital admission. The remaining 376,000 annual treat-and-release ED visits (95% CI: 361,000-390,000) resulted in $194 million in annual direct costs. Most treat-and-release ED visits (97%) and costs ($178 million/year) were associated with acute otitis externa. HAV ($5.5 million), NTM ($2.3 million), and salmonellosis ($2.2 million) were associated with next highest total costs. Cryptosporidiosis ($2,035), campylobacteriosis ($1,783), and NTM ($1,709) had the highest mean costs per treat-and-release ED visit. Overall, the annual hospitalization and treat-and-release ED visit costs associated with the selected diseases totaled $3.8 billion. As most of these diseases are not solely transmitted by water, an attribution process is needed as a next step to determine the proportion of these visits and costs attributable to waterborne transmission. PMID- 29040072 TI - Enterococci populations of a metropolitan river after an extreme flood event: prevalence, persistence and virulence determinants. AB - We investigated the prevalence, persistence and virulence determinants of enterococci populations in water samples collected over three rounds following an extreme flood event in a metropolitan river. Enterococci (n = 482) were typed using the high resolution biochemical fingerprinting method (PhP typing) and grouped into common (C) or single (S) biochemical phenotypes (BPTs). In all, 23 C BPTs (72.6% of isolates) were found across the sites. A representative isolate of each C-BPT was identified to the species level and tested for the presence of seven virulence genes (VGs), biofilm formation and resistance to 14 antibiotics. The enterococci concentrations in samples collected during the first two rounds were above national recreational water guidelines. By round three, enterococci concentrations decreased significantly (P < 0.05). However, 11 C-BPTs (55.5% of isolates) persisted across all sampling rounds. E. casseliflavus and E. mundtii were the most common enterococci populations comprising of >57% of all isolates. Ten of the 11 most dominant C-BPTs were resistant to multiple antibiotics and harboured one or more VGs. The high prevalence of antibiotic resistance and VGs among enterococci isolates in this catchment not only provides them with niche advantages but also poses a risk to public health. PMID- 29040073 TI - Removal of model viruses, E. coli and Cryptosporidium oocysts from surface water by zirconium and chitosan coagulants. AB - The present work evaluates the effect of contact filtration, preceded by coagulation with zirconium (Zr) and chitosan coagulants, on model microorganisms and waterborne pathogens. River water intended for potable water production was spiked with MS2 and Salmonella Typhimurium 28B bacteriophages, Escherichia coli, and Cryptosporidium parvum oocysts prior to coagulation. The hygienic performance demonstrated by Zr comprised 3.0-4.0 log10 removal of viruses and 5.0-6.0 log10 removal of E. coli and C. parvum oocysts. Treatment with chitosan resulted in a removal of 2.5-3.0 log10 of viruses and parasites, and 4.5-5.0 log10 of bacteria. A reference coagulant, polyaluminium chloride (PACl), gave a 2.5-3.0 log10 removal of viruses and 4.5 log10 of E. coli. These results indicate that both Zr and chitosan enable adequate removal of microorganisms from surface water. The present study also attempts to assess removal rates of the selected microorganisms with regard to their size and surface properties. The isoelectric point of the Salmonella Typhimurium 28B bacteriophage is reported for the first time. The retention of the selected microorganisms in the filter bed appeared to have some correlation with their size, but the effect of the charge remained unclear. PMID- 29040074 TI - Use of non-linear mixed-effects modelling and regression analysis to predict the number of somatic coliphages by plaque enumeration after 3 hours of incubation. AB - The present study aimed to establish the kinetics of the appearance of coliphage plaques using the double agar layer titration technique to evaluate the feasibility of using traditional coliphage plaque forming unit (PFU) enumeration as a rapid quantification method. Repeated measurements of the appearance of plaques of coliphages titrated according to ISO 10705-2 at different times were analysed using non-linear mixed-effects regression to determine the most suitable model of their appearance kinetics. Although this model is adequate, to simplify its applicability two linear models were developed to predict the numbers of coliphages reliably, using the PFU counts as determined by the ISO after only 3 hours of incubation. One linear model, when the number of plaques detected was between 4 and 26 PFU after 3 hours, had a linear fit of: (1.48 * Counts3 h + 1.97); and the other, values >26 PFU, had a fit of (1.18 * Counts3 h + 2.95). If the number of plaques detected was <4 PFU after 3 hours, we recommend incubation for (18 +/- 3) hours. The study indicates that the traditional coliphage plating technique has a reasonable potential to provide results in a single working day without the need to invest in additional laboratory equipment. PMID- 29040075 TI - Development of recreational water spray ground design regulations in New York State, an engineering approach. AB - The New York State Department of Health developed regulations for the design and operation of spray grounds to address the potential for recreational water illnesses associated with this type of venue. The water treatment component of the new regulation was based on a first-principles approach to address the unique challenges of spray grounds. The regulation departs from traditional recreational water treatment methods by requiring a novel filtration approach and the installation of UV disinfection. The water treatment system was also required to incorporate automatic control systems to ensure the water quality is maintained with a minimum of operator involvement. The treatment process specifications were based on pathogen and contaminant loadings that are likely to be encountered at spray grounds. The regulation was finalized in 2007, giving New York State a reliable means of protecting the health of spray ground patrons. PMID- 29040076 TI - Total coliform and Escherichia coli contamination in rural well water: analysis for passive surveillance. AB - With increasing stress on our water resources and recent waterborne disease outbreaks, understanding the epidemiology of waterborne pathogens is crucial to build surveillance systems. The purpose of this study was to explore techniques for describing microbial water quality in rural drinking water wells, based on spatiotemporal analysis, time series analysis and relative risk mapping. Tests results for Escherichia coli and coliforms from private and small public well water samples, collected between 2004 and 2012 in Alberta, Canada, were used for the analysis. Overall, 14.6 and 1.5% of the wells were total coliform and E. coli positive, respectively. Private well samples were more often total coliform or E. coli-positive compared with untreated public well samples. Using relative risk mapping we were able to identify areas of higher risk for bacterial contamination of groundwater in the province not previously identified. Incorporation of time series analysis demonstrated peak contamination occurring for E. coli in July and a later peak for total coliforms in September, suggesting a temporal dissociation between these indicators in terms of groundwater quality, and highlighting the potential need to increase monitoring during certain periods of the year. PMID- 29040077 TI - Influence of pathogenic bacterial activity on growth of Scenedesmus sp. and removal of nutrients from public market wastewater. AB - The present study aims to investigate the influence of Staphylococcus aureus, Escherichia coli and Enterococcus faecalis in public market wastewater on the removal of nutrients in terms of ammonium (NH4-) and orthophosphate (PO43) using Scenedesmus sp. The removal rates of NH4- and orthophosphate PO43- and batch kinetic coefficient of Scenedesmus sp. were investigated. The phycoremediation process was carried out at ambient temperature for 6 days. The results revealed that the pathogenic bacteria exhibited survival potential in the presence of microalgae but they were reduced by 3-4 log at the end of the treatment process. The specific removal rates of NH4- and PO43- have a strong relationship with initial concentration in the public market wastewater (R2 = 0.86 and 0.80, respectively). The kinetic coefficient of NH4- removal by Scenedesmus sp. was determined as k = 4.28 mg NH4- 1 log10 cell mL-1 d-1 and km = 52.01 mg L-1 (R2 = 0.94) while the coefficient of PO43- removal was noted as k = 1.09 mg NH4- 1 log10 cell mL-1 d-1 and km = 85.56 mg L-1 (R2 = 0.92). It can be concluded that Scenedesmus sp. has high competition from indigenous bacteria in the public market wastewater to remove nutrients, with a higher coefficient of removal of NH4- than PO43. PMID- 29040078 TI - Genetic diversity of Escherichia coli isolates from surface water and groundwater in a rural environment. AB - The genetic characteristics among Escherichia coli strains can be grouped by origin of isolation. Then, it is possible to use the genotypes as a tool to determine the source of water contamination. The aim of this study was to define water aptitude for human consumption in a rural basin and to assess the diversity of E. coli water populations. Thus, it was possible to identify the main sources of fecal contamination and to explore linkages with the hydrogeological environment and land uses. The bacteriological analysis showed that more than 50% of samples were unfit for human consumption. DNA fingerprinting analysis by BOX PCR indicated low genotypic diversity of E. coli isolates taken from surface water and groundwater. The results suggested the presence of a dominant source of fecal contamination. The relationship between low genotypic diversity and land use would prove that water contamination comes from livestock. The genetic diversity of E. coli isolated from surface water was less than that identified in groundwater because of the different hydraulic features of both environments. Furthermore, each one of the two big strain groups identified in this basin is located in different sub-basins, showing that hydrological dynamics exerts selective pressure on bacteria DNA. PMID- 29040079 TI - Identification of nontuberculous mycobacteria isolated from hospital water by sequence analysis of the hsp65 and 16S rRNA genes. AB - Nontuberculous mycobacteria (NTM) have emerged as an important cause of opportunistic nosocomial infections. NTM has frequently been isolated from hospital water distribution systems. The aim of this study was to survey the risk of NTM infections and determine the prevalence of NTM species in the hospital water distribution systems in Tabriz, Iran. One hundred and twenty samples of water from different sources of Tabriz hospitals were collected. The samples were filtered through 0.45-um pore size membranes and decontaminated with 0.01% cetylpyridinium chloride. The sediment was inoculated onto Lowenstein-Jensen medium and incubated for 8 weeks. For identification to the species level, partial sequence analysis of the hsp65 and 16S rRNA genes were used. NTM were detected in 76 (63.3%) of 120 samples. Potentially pathogenic mycobacteria and saprophytic mycobacteria were isolated. Mycobacterium gordonae was the only single species that was present in all types of water. The prevalence of NTM in Tabriz hospitals' water compared with many investigations on hospital waters was high. This indicates that the immunocompromised patients and transplant recipients are at risk of contamination which necessitates considering decontamination of water sources to prevent such potential hazards. PMID- 29040080 TI - Detection of Giardia intestinalis in water samples collected from natural water reservoirs and wells in northern and north-eastern Poland using LAMP, real-time PCR and nested PCR. AB - Giardia intestinalis is a protozoan parasite, transmitted to humans and animals by the faecal-oral route, mainly through contaminated water and food. Knowledge about the distribution of this parasite in surface water in Poland is fragmentary and incomplete. Accordingly, 36 environmental water samples taken from surface water reservoirs and wells were collected in Pomerania and Warmia-Masuria provinces, Poland. The 50 L samples were filtered and subsequently analysed with three molecular detection methods: loop-mediated isothermal amplification (LAMP), real-time polymerase chain reaction (real-time PCR) and nested PCR. Of the samples examined, Giardia DNA was found in 15 (42%) samples with the use of LAMP; in 12 (33%) of these samples, Giardia DNA from this parasite was also detected using real-time PCR; and in 9 (25%) using nested PCR. Sequencing of selected positive samples confirmed that the PCR products were fragments of the Giardia intestinalis small subunit rRNA gene. Genotyping using multiplex real-time PCR indicated the presence of assemblages A and B, with the latter predominating. The results indicate that surface water in Poland, as well as water taken from surface wells, may be a source of Giardia strains which are potentially pathogenic for humans. It was also demonstrated that LAMP assay is more sensitive than the other two molecular assays. PMID- 29040081 TI - Characterization of extended spectrum beta-lactamase (ESBL)-producing Escherichia coli in Asi (Orontes) River in Turkey. AB - In this study, the presence of extended spectrum beta-lactamase (ESBL)-producing Escherichia coli in aquatic environments (the Orontes River and an urban wastewater) was investigated. Fifty-four E. coli strains resistant to cefotaxime were isolated from the river waters and nearby waste water treatment plant and screened for ESBL gene variants, different classes of integrons and sulfonamide resistance genes. The ESBL-producing E. coli strains were further characterized by PhP-typing system, phylogenetic grouping and antimicrobial susceptibility testing. Of the 54 ESBL-producing strains, 14 (25.9%) belonged to four common PhP types and the remaining were of single types. CTX-M type ESBL genes were identified in 68% of the isolates. The most predominant specific CTX-M subtype identified was blaCTX-M-15 (n = 36), followed by blaCTX-M-1 (n = 1). None of the isolates were SHV and OXA positive. Most of the ESBL positive isolates (n = 37; 68.5%) were harboring sul gene. This study indicates a widespread distribution of CTX-M-15 producing E. coli strains in the surface waters in part of Turkey, suggesting an aquatic reservoir for ESBL genes. PMID- 29040082 TI - Determinants of the use of alternatives to arsenic-contaminated shallow groundwater: an exploratory study in rural West Bengal, India. AB - Shallow groundwater containing toxic concentrations of arsenic is the primary source of drinking water for millions of households in rural West Bengal, India. Often, this water also contains unpleasant levels of iron and non-negligible fecal contamination. Alternatives to shallow groundwater are increasingly available, including government-built deep tubewells, water purchased from independent providers, municipal piped water, and household filters. We conducted a survey of 501 households in Murshidabad district in 2014 to explore what influenced the use of available alternatives. Socioeconomic status and the perceived likelihood of gastrointestinal (GI) illness (which was associated with dissatisfaction with iron in groundwater) were the primary determinants of the use of alternatives. Arsenic knowledge was limited. The choice amongst alternatives was influenced by economic, social, and aesthetic factors, but not by health risk perceptions. The use of purchased water was rarely exclusive and was strongly associated with socioeconomic status, suggesting that this form of market-based water provision does not ensure universal access. Demand for purchased water appeared to decrease significantly shortly after free piped water became available at public taps. Our results suggest that arsenic mitigation interventions that also address co-occurring water problems (iron, GI illness) could be more effective than a focus on arsenic alone. PMID- 29040083 TI - Consumption of edible ice contaminated with Acinetobacter, Pseudomonas, and Stenotrophomonas is a risk factor for fecal colonization with extended-spectrum beta-lactamase-producing Escherichia coli in Vietnam. AB - Although Vietnamese residents frequently harbor extended-spectrum beta-lactamase producing Escherichia coli (ESBL-E), it is unclear which foods/beverages are risk factors for acquiring these bacteria. The aim of this study was to evaluate the frequency with which edible ice served in restaurants is contaminated with antibiotic-resistant bacteria, and thereby clarify whether this product poses a risk for ESBL-E carriage in humans. Ice from restaurants in Vietnam and Japan was screened for bacteria capable of growing on agar containing cefotaxime (BG-CTX). Of the 119 BG-CTX strains isolated in Vietnam, 40%, 39%, and 12% were identified as Pseudomonas spp., Acinetobacter spp., and Stenotrophomonas maltophilia, respectively. Meanwhile, of the six such strains isolated in Japan, five were identified as Acinetobacter spp. and one as Pseudomonas spp. More than 10% of the Acinetobacter isolates exhibited cefotaxime, ceftazidime, and sulfa/trimethoprim resistance, while 21% of Pseudomonas and 14% of S. maltophilia isolates exhibited meropenem and sulfa/trimethoprim resistance, respectively. Subsequent multiplex polymerase chain reaction (PCR) analyses detected ESBL-encoding genes in 10% of the BG-CTX. Notably, feces harvested from mice administered water contaminated with BG-CTX contained E. coli harboring the blaCTX-M-9 gene. In conclusion, our findings indicate that consumption of contaminated edible ice is a risk factor for human ESBL-E carriage. PMID- 29040084 TI - Quantification and identification of aerobic bacteria in holy water samples from a German environment. AB - Despite its frequent use in many religious institutions, the microbiological quality of holy water is clearly underinvestigated. We analyzed the microbial load of 54 holy water samples, repeatedly taken in five Roman Catholic churches in the greater area of Villingen-Schwenningen, Germany, by means of aerobic colony counting and Matrix-Assisted Laser Desorption/Ionization (MALDI) Biotyping of representative isolates. Over all samples, colony counting indicated an average aerobic microbial load of 5.85 +/- 3.98 * 103 colony forming units (CFU) ml-1 (average +/- standard error of the mean (SEM)). Urban churches showed significantly higher contaminations than rural churches, probably owing to a greater number of visitors. Out of 145 bacterial isolates, 63 (43%) were identified to genus level and 39 (27%) to species level. The majority of the identified bacteria were typical human skin commensals, mainly affiliated with the genus Staphylococcus. Ten out of 20 (50%) of the identified species were classified as potential pathogens. Appropriate hygiene measures should be taken to control microbial contamination of holy water, e.g., regular water exchange, particularly in highly frequented churches. PMID- 29040085 TI - Sources of pharmaceuticals and personal care products in swimming pools. AB - Pharmaceuticals and personal care products (PPCPs) in swimming pool water are hypothesized to originate from fill water and anthropogenic sources like urine, sweat, swimwear and body surfaces. However, research exploring PPCP origins in pools is lacking. This research investigates PPCP sources at 31 swimming pools. Pool water was analyzed for 24 representative PPCPs using advanced liquid chromatography-mass spectrometry techniques. Fill water was analyzed as a contamination source and to determine if swimmers introduce PPCPs to pools. Results show every PPCP in fill water was present in pools except one, suggesting fill water is a PPCP source at pools. The presence of the antidepressant fluoxetine in 26% of pools and 0% of fill water indicates swimmers introduce pharmaceuticals. The flame retardant (tris(2-carboxyethyl)phosphine (TCEP)) was present 48% more frequently in pool than fill water, suggesting TCEP is introduced by body surfaces or swimwear. Enforcing showering and bathroom breaks is recommended to reduce PPCP contamination from swimmers. PMID- 29040086 TI - Compliance of brown mussel (Perna perna) production areas in the South of Brazil with the bacteriological criteria of the shellfish hygiene systems in the European Union and United States of America: assessing the impacts on consumer safety. AB - Levels of faecal indicator organisms (FIOs) monitored in surface water and brown mussels collected at 28 production areas in Brazil from August 2012 to October 2013 were used to assess compliance with the bacteriological standards of the shellfish hygiene classification systems used in the European Union (EU) and USA. This classification determines the level of post-harvesting purification needed to reduce the risk of illness in consumers. The results indicate that 36% of production areas would be class A under the EU system and 75% would be 'Approved' under the US system. Mathematical models showed that a 90th percentile of FIO levels in water of 43 MPN (most probable number) 100 mL-1 (standard for 'Approved' areas under the US system) would correspond to an 80th percentile of FIO levels in mussels of 572 MPN 100 g-1. This concentration is more than double that in the class A standard in the EU system. These results have important implications for public health since no post-harvesting purification is required for any of these classification categories. Areas compliant with the US 'Restricted' and EU class B standards, however, provide similar levels of consumer safety. PMID- 29040099 TI - Muscle Relaxation and Lower Airway Characteristics May Affect Tidal Volume during Pressure-controlled Ventilation. PMID- 29040100 TI - Rocuronium Onset May Affect Mask Ventilation. PMID- 29040101 TI - "Loose Lips Are Actually Good". PMID- 29040102 TI - In Reply. PMID- 29040103 TI - Insulin for Perioperative Glucose Control: Settled Science? PMID- 29040104 TI - In Reply. PMID- 29040105 TI - When Managing Patients with Left Ventricular Assist Devices Undergoing Noncardiac Surgery, Less Is Not More. PMID- 29040106 TI - Noninvasive Blood Pressure Determination in Left Ventricular Assist Device Patients. PMID- 29040107 TI - In Reply. PMID- 29040108 TI - A Deeper Look at Anesthesia Depth. PMID- 29040109 TI - Amendments and Corrections to Mattusch et al. (Anesthesiology 2015; 122[5]: 1047 59), "Impact of Hyperpolarization-activated, Cyclic Nucleotide-gated Cation Channel Type 2 for the Xenon-mediated Anesthetic Effect: Evidence from In Vitro and In Vivo Experiments". PMID- 29040111 TI - Healing Oncology Nurses in a Caring Environment. PMID- 29040110 TI - Racial Differences in Palliative Care Use After Stroke in Majority-White, Minority-Serving, and Racially Integrated U.S. Hospitals. AB - OBJECTIVES: Racial/ethnic differences in palliative care resource use after stroke have been recognized, but it is unclear whether patient or hospital characteristics drive this disparity. We sought to determine whether palliative care use after intracerebral hemorrhage and ischemic stroke differs between hospitals serving varying proportions of minority patients. DESIGN: Population based cross-sectional study. SETTING: Inpatient hospital admissions from the Nationwide Inpatient Sample between 2007 and 2011. PATIENTS: A total of 46,735 intracerebral hemorrhage and 331,521 ischemic stroke cases. INTERVENTIONS: Palliative care use. MEASUREMENTS AND MAIN RESULTS: Intracerebral hemorrhage and ischemic stroke admissions were identified from the Nationwide Inpatient Sample between 2007 and 2011. Hospitals were categorized based on the percentage of ethnic minority stroke patients (< 25% minorities ["white hospitals"], 25-50% minorities ["mixed hospitals"], or > 50% minorities ["minority hospitals"]). Logistic regression was used to evaluate the association between race/ethnicity and palliative care use within and between the different hospital strata. Stroke patients receiving care in minority hospitals had lower odds of palliative care compared with those treated in white hospitals, regardless of individual patient race/ethnicity (adjusted odds ratio, 0.65; 95% CI, 0.50-0.84 for intracerebral hemorrhage and odds ratio, 0.62; 95% CI, 0.50-0.77 for ischemic stroke). Ethnic minorities had a lower likelihood of receiving palliative care compared with whites in any hospital stratum, but the odds of palliative care for both white and minority intracerebral hemorrhage patients was lower in minority compared with white hospitals (odds ratio, 0.66; 95% CI, 0.50-0.87 for white and odds ratio, 0.64; 95% CI, 0.46-0.88 for minority patients). Similar results were observed in ischemic stroke. CONCLUSIONS: The odds of receiving palliative care for both white and minority stroke patients is lower in minority compared with white hospitals, suggesting system-level factors as a major contributor to explain race disparities in palliative care use after stroke. PMID- 29040112 TI - Interventions for the Management of Fatigue in Adults With a Primary Brain Tumor: A Cochrane Systematic Review Summary. PMID- 29040113 TI - Investigating Language of Fear and Failure in Cancer Care. PMID- 29040114 TI - Association of Adverse Childhood Experiences with Co-occurring Health Conditions in Early Childhood. AB - OBJECTIVE: To understand how adverse childhood experiences (ACEs) are associated with co-occurring physical, mental and developmental problems during early childhood. METHOD: A subsample of 19,957 children aged 2-5 years were selected from the 2011-2012 National Survey for Child Health. Outcomes included 18 health conditions organized in singular condition domains (physical, mental, and developmental), and combinations of condition domains (e.g., physical plus mental, mental plus developmental, etc.). Predictors included 8 ACEs (divorce of a parent, death of a parent, exposure to domestic violence, living with someone with a drug or alcohol abuse problem, household member with a mental illness, parent incarceration, neighborhood violence, discrimination). Multivariable logistic regression was performed controlling for demographic characteristics, having a personal doctor, health insurance coverage, and seeing a health care professional in the previous year. RESULTS: Experiencing 3 or more ACEs before the age of 5 years was associated with increased likelihood of nearly every co occurring condition combination across 3 domains of health. Most notably, experiencing 3 or more ACEs was also associated with a 2-fold increase in likelihood of having >=1 physical condition and >=1 developmental condition, a 9 fold increase in likelihood of having >=1 mental and >=1 developmental condition, and a 7-fold increase in likelihood of having >=1 physical, >=1 mental, and >=1 developmental condition. CONCLUSION: This study demonstrates that we can identify the health effects of adversity quite early in development and that management should include communication between both health care and early childhood education providers. PMID- 29040115 TI - Keratitis After Post-Kala-Azar Dermal Leishmaniasis. AB - PURPOSE: To report 2 cases of keratitis occurring after post-kala-azar dermal leishmaniasis (PKDL) in immunocompetent patients. METHODS: Case report and literature review. RESULTS: Two male patients presented with a dense stromal infiltrate in the temporal and superior aspects of the cornea, respectively. Microbiological workup in both patients did not show any offending organism. Both patients were undergoing treatment for PKDL in the form of oral miltefosine. After careful deliberation, topical prednisolone was started under antibiotic cover for both patients with close follow-up. There was a dramatic improvement with resolution of the infiltrate and a good visual outcome. CONCLUSIONS: We present the first reported cases of keratitis after PKDL, which responded to topical corticosteroid therapy. The treating clinician must be made aware of such a presentation of leishmaniasis especially in endemic areas. PMID- 29040116 TI - Air Versus Sulfur Hexafluoride Gas Tamponade in Descemet Membrane Endothelial Keratoplasty: A Fellow Eye Comparison. AB - PURPOSE: To perform a fellow eye comparison of outcomes and complications when using air or sulfur hexafluoride (SF6) gas as a tamponade in Descemet membrane endothelial keratoplasty (DMEK). METHODS: One hundred thirty-six eyes of 68 consecutive patients who underwent uneventful DMEK in both eyes for Fuchs endothelial corneal dystrophy were included in this retrospective study. Inclusion criteria were air tamponade (80% of the anterior chamber volume) in the first eye and 20% SF6 gas tamponade (80% of the anterior chamber volume) in the second eye; and same donor tissue culture condition in both eyes. All eyes received laser iridotomy on the day before DMEK. Main outcome measures included preoperative and postoperative best-corrected visual acuity, endothelial cell density, corneal volume, rebubbling rate, and rate of postoperative pupillary block caused by the air/gas bubble. RESULTS: Thirteen of 68 eyes (19.1%) with an air tamponade needed rebubbling compared with 4 of 68 eyes (5.9%) with an SF6 gas tamponade (P = 0.036). Postoperative pupillary block necessitating partial release of air/gas occurred in 1 eye (1.5%) with an air tamponade and 3 eyes (4.4%) with an SF6 gas tamponade (P = 0.301). There were no significant differences in preoperative and postoperative best-corrected visual acuity, endothelial cell density, and corneal volume within 3-month follow-up. CONCLUSIONS: Our results confirm the previously reported better graft adhesion when using an SF6 gas tamponade in DMEK without increased endothelial cell toxicity. The rate of pupillary block in eyes with an SF6 gas tamponade was comparable to that with an air tamponade. As a consequence, we recommend using SF6 gas as the tamponade in DMEK. PMID- 29040117 TI - Factors Limiting the Visual Outcome After Descemet Stripping Automated Endothelial Keratoplasty: Comprehensive Analysis Including the Graft Position and Irregularity. AB - PURPOSE: To investigate factors affecting best postoperative corrected distance visual acuity (CDVA) in patients who have undergone Descemet stripping automated endothelial keratoplasty (DSAEK). METHODS: Forty-two eyes of 42 patients with predominantly non-Fuchs endothelial corneal dystrophy after DSAEK were retrospectively evaluated. All patients were examined using anterior segment optical coherence tomography when their best postoperative CDVA had been achieved. We analyzed the relationship between best postoperative CDVA and preoperative, intraoperative, and postoperative factors, including corneal higher order aberrations (HOAs), corneal backward scattering, graft irregularity, and graft decentration. Variables with P < 0.2 in univariate analysis were entered into a multivariate linear regression model to determine the factors affecting best postoperative CDVA. RESULTS: Mean CDVA improved from 1.16 +/- 0.46 preoperatively to 0.22 +/- 0.19 logarithm of the minimum angle of resolution equivalents postoperatively (P < 0.0001). Best postoperative CDVA was achieved 11.6 +/- 7.7 months after DSAEK. Multivariate analysis showed that anterior corneal coma-like HOAs and venting incisions inside the pupil area were significantly correlated with best postoperative CDVA (t = 2.90, P = 0.006; t = 2.62, P = 0.01, respectively). No significant relationship was found between the visual outcome and any other factor, including posterior corneal HOAs, corneal backward scattering, graft decentration, and graft irregularity. CONCLUSIONS: Irregularity of the anterior corneal surface and venting incisions inside the pupil area are important factors that impair best postoperative CDVA in patients who have undergone DSAEK. In contrast, our results indicate that the graft position and irregularity might not have a strong influence on the visual outcome after DSAEK. PMID- 29040118 TI - Influence of Socioeconomic Deprivation on Visual Acuity in Patients Undergoing Corneal Transplantation. AB - PURPOSE: To determine whether there is an association between socioeconomic status and best-corrected visual acuity (BCVA) in patients undergoing corneal transplantation in the United Kingdom. METHODS: Retrospective cohort study of 4306 patients registered on the national United Kingdom Transplant Registry and undergoing penetrating keratoplasty, anterior lamellar keratoplasty, or endothelial keratoplasty in 2002, 2008, and 2013. Socioeconomic status was determined by applying a validated deprivation index to generate a score based on 5 categories. Patients' demographic details, preoperative BCVA, copathology, surgical center volume, and socioeconomic status were analyzed for univariate effects of categorical and continuous variables. Binary logistic regression was used to determine whether preoperative BCVA was affected by socioeconomic status after adjusting for other factors. RESULTS: A larger percentage of the most deprived group was female in each period compared with the least deprived, but this was only significant in 2002 (48.7% vs. 40.3%; P = 0.04). There was no interaction between socioeconomic status and the preoperative BCVA in the grafted eye. However, BCVA in the fellow eye was poorer for the most economically deprived patients compared with the least deprived in 2013 (P = 0.01). CONCLUSIONS: We found no evidence of a relationship between socioeconomic deprivation and BCVA in the transplant recipient eye. However, there was clear evidence of an association between socioeconomic deprivation and reduced acuity in fellow eyes, for which barriers to access or low patient demand may be possible contributors. PMID- 29040119 TI - Prospective Clinical Trial of Corneal Reconstruction With Biomaterial-Free Cultured Oral Mucosal Epithelial Cell Sheets. AB - PURPOSE: To investigate the efficacy and safety of transplantation with biomaterial-free cultured oral mucosal epithelial cell sheets (COMECs) for ocular reconstruction in subjects with total limbal stem cell deficiency. METHODS: A prospective clinical trial (NCT02149732) was conducted in 8 subjects with total limbal stem cell deficiency after approval from the institutional review board of Seoul National University Hospital (H-0707-043-213) and the Ministry of Food and Drug Safety of Korea. COMECs were prepared in a culture system without the use of any temperature-sensitive polymers or carriers. The COMECs were transplanted without suture fixation. Four subjects underwent penetrating keratoplasty after stabilization of the COMEC transplant. Stable epithelialization, changes in visual acuity, and postoperative complications were evaluated for 6 months. Corneal cytokeratins (K) of 4 subjects who underwent penetrating keratoplasty were stained with an immunofluorescent agent. RESULTS: The ocular surface was successfully reconstructed in 6 eyes. Complete stable epithelialization was achieved within a mean of 53.6 days. Visual improvement (>=2 lines) was achieved in 62.5% of the eyes. K12 (corneal phenotype), K4, and K13 (mucosal phenotype) were well expressed in grafts after keratoplasty, whereas K1, K8, and K19 were barely expressed. No ocular infections, local tumor formation, or remarkable systemic complications were observed. Ocular reconstruction using COMECs failed in 2 eyes, which had full symblepharon in 4 quadrants. CONCLUSIONS: Transplanting biomaterial-free COMECs seems to be an efficient and safe procedure to reconstruct the ocular surface in patients who are completely limbal stem cell deficient without a full symblepharon. PMID- 29040120 TI - Comparative Evaluation of Tacrolimus Versus Interferon Alpha-2b Eye Drops in the Treatment of Vernal Keratoconjunctivitis: A Randomized, Double-Masked Study. PMID- 29040121 TI - Outcomes and Rationale of Excision and Mucous Membrane Grafting in Palpebral Vernal Keratoconjunctivitis. AB - PURPOSE: To report outcomes of mucous membrane grafting (MMG) for refractory giant papillae in vernal keratoconjunctivitis. METHODS: Eleven eyes of 6 patients having giant papillae and recurrent shield ulcers refractory to topical medications, cryotherapy, and supratarsal steroid injections and shave excision of papillae underwent surgical resection of the giant papillae with MMG. Average occurrence of shield ulcers was twice per eye per year before the procedure with 50% of eyes having steroid-induced cataract and glaucoma. RESULTS: No recurrence of the shield ulcer in any eye was observed over a mean follow-up period of 38.2 (range 9-106) months. The papillae recurred beyond the graft junction in one eye. CONCLUSIONS: Surgical excision of refractory giant papillae followed by MMG does have its advantages in reducing their corneal complications, and it should be considered early in the management of exuberant refractory giant papillae. PMID- 29040122 TI - Treatment and Resolution of Filamentary Keratitis in a Patient with Stiff Person Syndrome. AB - PURPOSE: To report a rare case of filamentary keratitis associated with stiff person syndrome. METHODS: Case report. RESULTS: A 26-year-old woman with several autoimmune conditions was referred because of filamentary keratitis. Conservative management using lubrication, mucolytics, and bandage contact lenses failed to adequately relieve symptoms. Despite the addition of oral prednisone, cyclosporine, and azathioprine, the patient's condition persisted with numerous filaments and severe dry eye. One month later, the patient had an episode of sudden muscle cramps in her back, for which she was hospitalized. Investigations revealed a diagnosis of stiff person syndrome, positive for glutamic acid decarboxylase autoantibodies. Plasmapheresis and high-dose intravenous steroids were provided as initial therapy. On follow-up, her filamentary keratitis resolved and at the last visit, her ocular symptoms had completely resolved. CONCLUSIONS: Filamentary keratitis is a chronic, recurrent condition that can be challenging to treat. Effective management requires careful consideration of possible predisposing causes, especially in refractory cases. PMID- 29040123 TI - Reply. PMID- 29040124 TI - Highly Cross-Linked Polyethylene Reduces Wear and Revision Rates in Total Hip Arthroplasty: A 10-Year Double-Blinded Randomized Controlled Trial. AB - BACKGROUND: Highly cross-linked polyethylene (XLPE) was developed to address the problem of wear and osteolysis associated with metal-on-conventional ultra-high molecular weight polyethylene (UHMWPE) bearing surfaces. The purpose of this study was to compare in vivo wear rates and clinical and radiographic outcomes between XLPE and UHMWPE in a prospective double-blinded randomized controlled trial with a minimum of 10 years of follow-up. METHODS: We randomized 122 patients to receive either a conventional UHMWPE liner (Enduron; DePuy) or an XLPE liner (Marathon; DePuy). Ninety-one patients were assessed clinically and radiographically at a minimum of 10 years (range, 10.08 to 12.17 years). Oxford Hip Scores and Short Form-12 Health Survey scores were collected. The radiographs were analyzed for osteolysis and for 2-dimensional (2-D), 3-dimensional (3-D), and volumetric wear using validated software. RESULTS: All 122 patients were accounted for at the 10-year follow-up evaluation. Twelve patients had undergone revision surgery, 21 patients had died (1 of whom had previously undergone revision surgery), and 2 patients were unable to return for follow-up, leaving 91 patients available for clinical and radiographic evaluation. At a minimum of 10 years, 3-D wear rates were significantly lower (p < 0.001) in the XLPE group (mean, 0.03 mm/yr) than in the conventional UHMWPE group (mean, 0.27 mm/yr). The prevalence of osteolysis was also significantly lower in the XLPE group (38% versus 8%, p < 0.005), as was the revision rate (14.6% versus 1.9%, p = 0.012), with 10 of the 12 revisions being in the Enduron group. There was no significant difference between the clinical scores of the 2 groups. CONCLUSIONS: XLPE liners have significantly reduced wear and are associated with a greater implant survival rate at 10 years compared with conventional UHMWPE liners. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040125 TI - Minimal Incision Total Hip Arthroplasty: A Concise Follow-up Report on Functional and Radiographic Outcomes at 10 Years. AB - : In 2005, we conducted a prospective randomized controlled trial that demonstrated that, compared with a standard incision, a minimal incision technique did not improve early outcomes of total hip arthroplasty (THA). There was concern that reduced exposure could compromise long-term outcome. For the current study, all surviving participants were invited to return for 10-year radiographic and clinical evaluation. Outcome scores were available for 152 patients (69.4%) from the original cohort, and radiographs were available for 126 (57.5%). The median duration of follow-up was 124 months. We did not find significant differences in functional status or radiographic outcome between the minimal and standard incision groups at 10 years. The 10-year implant survival rate was 99.1% (95% confidence interval [CI] = 97.3% to 100%) in the standard incision group and 97.9% (95% CI = 95.1% to 100%) in the minimal incision group (p = 0.57). We concluded that minimal incision THA performed by a high-volume surgeon does not compromise long-term results but offers no benefit over a standard incision. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040126 TI - Reverse Total Shoulder Arthroplasty for Massive, Irreparable Rotator Cuff Tears Before the Age of 60 Years: Long-Term Results. AB - BACKGROUND: There has been serious concern regarding the longevity and durability of outcomes of reverse total shoulder arthroplasty (RTSA) in younger patients. It was the purpose of this study to analyze long-term outcomes and complications of RTSA for irreparable rotator cuff tears in patients younger than 60 years. METHODS: Twenty patients (23 shoulders) with a mean age of 57 years (range, 47 to 59 years) were evaluated at a mean of 11.7 years (range, 8 to 19 years) after RTSA. Fifteen shoulders (65%) had undergone previous non-arthroplasty surgery. Longitudinal clinical and radiographic outcomes were assessed. RESULTS: At the time of final follow-up, the mean absolute and relative preoperative Constant score (CS) (and standard deviation) had improved from 24 +/- 9 to 59 +/- 19 points (p < 0.001) and from 29% +/- 11% to 69% +/- 21% (p < 0.001), respectively. The mean Subjective Shoulder Value (SSV) had increased from 20% +/- 13% to 71% +/ 27% (p < 0.001). There were also significant improvements in the mean active anterior elevation (from 64 degrees to 117 degrees ), active abduction (from 58 degrees to 111 degrees ), pain scores, and strength (all p <= 0.001). Clinical outcomes did not significantly deteriorate beyond 10 years and the functional results of patients with previous surgical procedures were not significantly inferior to the results of those with primary RTSA. The grade of, and number of patients with, radiographically apparent notching increased over time; the mean relative CS was lower in patients in whom the notching was grade 2 or higher (57%) than it was in those with no or grade-1 notching (81%; p = 0.006). Nine (39%) had >=1 complication, with 2 failed RTSAs (9%). CONCLUSIONS: RTSA in patients younger than 60 years leads to substantial subjective and functional improvement without clinical deterioration beyond 10 years. It is associated with a substantial complication rate, and complications compromise ultimate subjective and objective outcomes. LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040127 TI - Double-Row Arthroscopic Rotator Cuff Repair Is More Cost-Effective Than Single Row Repair. AB - BACKGROUND: The optimal technique for arthroscopic rotator cuff repair is controversial, and both single and double-row techniques are commonly used. In the current era of increasing costs, health-care delivery models are focusing on the value of care. In this study, we compared the cost-effectiveness of single row and double-row reconstructions in patients undergoing arthroscopic rotator cuff repair. METHODS: A cost-utility analysis was performed from the perspective of a publicly funded health-care system. Health-care costs, probabilities, and utility values were derived from the published literature. Efficacy data were obtained from a previous randomized controlled trial comparing the effect of single-row (n = 48) or double-row (n = 42) reconstruction among 90 surgical patients. Unit cost data were obtained from a hospital database and the Ontario Schedule of Benefits and Fees. Results are presented as an incremental cost per quality-adjusted life year (QALY) gained. All costs are presented in 2015 Canadian dollars. A series of 1-way and probabilistic sensitivity analyses were performed. RESULTS: Double-row fixation was more costly ($2,134.41 compared with $1,654.76) but was more effective than the single-row method (4.073 compared with 4.055 QALYs). An incremental cost-effectiveness ratio (ICER) was estimated to be $26,666.75 per QALY gained for double-row relative to single-row fixation. A subgroup analysis demonstrated that patients with larger rotator cuff tears (>=3 cm) had a lower ICER, suggesting that double-row fixation may be more cost effective for larger tears. CONCLUSIONS: Based on the willingness-to-pay threshold of $50,000 per QALY gained, double-row fixation was found to be more cost-effective than single-row. Furthermore, a double-row reconstruction was found to be more economically attractive for larger rotator cuff tears (>=3 cm). LEVEL OF EVIDENCE: Economic and Decision Analysis Level IV. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040128 TI - Single-Dose, Preoperative Vitamin-D Supplementation Decreases Infection in a Mouse Model of Periprosthetic Joint Infection. AB - BACKGROUND: Despite recent advances, infection remains the most common etiology of arthroplasty failure. Recent work suggests that 25-hydroxyvitamin D (25D) deficiency correlates with the frequency of periprosthetic joint infection (PJI). We endeavored to examine whether 25D3 deficiency leads to increased bacterial burden in vivo in an established mouse model of PJI and, if so, whether this effect can be reversed by preoperative 25D3 supplementation. METHODS: Mice (lys EGFP) possessing fluorescent neutrophils were fed a vitamin D3-sufficient (n = 20) or deficient (n = 40) diet for 6 weeks. A group of 25D3-deficient mice (n = 20) were "rescued" with 1 intraperitoneal dose of 25D3 at 3 days before surgery. A stainless steel implant was inserted into the knee joint and the joint space was inoculated with bioluminescent Staphylococcus aureus (1 * 10 colony forming units [CFUs]). In vivo imaging was used to monitor bacterial burden and neutrophil infiltration. Blood was drawn to confirm 25D3 levels 3 days before surgery and on postoperative days (PODs) 0 and 14. Mice were killed at POD 21, and CFUs were quantified after culture. Myeloperoxidase (MPO) and beta-N acetylglucosaminidase (NAG) were assayed to look at neutrophil infiltration and activated tissue macrophage recruitment, respectively. RESULTS: Serum values confirmed 25D3 deficiency and repletion of the 25D3-rescued group. Bacterial bioluminescence and neutrophil fluorescence were significantly greater (p < 0.05) in the 25D3-deficient group. CFU counts from the joint tissue and implant were also significantly greater in this group (p < 0.05). Rescue treatment significantly decreased bacterial burden and neutrophil infiltration (p < 0.05). Compared with the 25D3-sufficient and 25D3-rescued groups, MPO activity was higher (p < 0.02) and NAG activity was lower (p < 0.03) in the 25D3-deficient group. CONCLUSIONS: This study demonstrated in vivo in a mouse model of PJI that (1) 25D3 deficiency results in increased bacterial burden and neutrophil infiltration, and (2) this effect can be reversed with preoperative repletion of 25D3. CLINICAL RELEVANCE: Considering that >65% of patients undergoing arthroplasty have insufficient or low levels of total 25D and that 25D levels can be replenished with ease using a U.S. Food and Drug Administration (FDA) approved, oral 25D3 product, 25D deficiency may be an important modifiable risk factor in humans undergoing joint replacement. PMID- 29040129 TI - Postoperative CT Is Superior for Acetabular Fracture Reduction Assessment and Reliably Predicts Hip Survivorship. AB - BACKGROUND: Postoperative pelvic radiographs are routinely used to assess acetabular fracture reduction. We compared radiographs and computed tomography (CT) with regard to their ability to detect residual fracture displacement. We also determined the association between the quality of reduction as assessed on CT and hip survivorship and identified risk factors for conversion to total hip arthroplasty (THA). METHODS: Patients were included in the study who had undergone acetabular fracture fixation between 1992 and 2012, who were followed for >=2 years (or until early THA), and for whom radiographs and a pelvic CT scan were available. Residual displacement was measured on postoperative radiographs and CT and graded according to Matta's criteria (0 to 1 mm indicating anatomic reduction; 2 to 3 mm, imperfect reduction; and >3 mm, poor reduction) by observers who were blinded to patient outcome. Kaplan-Meier survivorship curves were plotted and log-rank tests were used to assess statistical differences in survivorship curves between adequate (anatomic or imperfect) and inadequate reductions on CT. Cox proportional hazard regression analysis was used to identify risk factors for conversion to THA. Two hundred and eleven patients were included. At mean of 9.0 years (standard deviation [SD], 5.6; median, 7.9; range, 0.5 to 23.3 years) postoperatively, 161 patients (76%) had retained their native hip. RESULTS: Compared with radiographs, CT showed worse reduction in 124 hips (59%), the same reduction in 79 (37%), and better reduction in 8 (4%). Of the 99 patients graded as having adequate reduction on CT, 10% underwent conversion to THA in comparison with 36% of those with inadequate reduction, and there was a significant difference between the survivorship curves (p < 0.001). Mean hip survivorship was shorter in patients >=50 years of age (p < 0.001) and in those with an inadequate reduction on CT (p < 0.001). Independent risk factors for conversion to THA were age (hazard ratio [HR] = 4.46, 95% confidence interval [CI] = 2.07 to 9.62; p < 0.001), inadequate reduction (HR = 3.57, 95% CI = 1.71 to 7.45; p = 0.001), and posterior wall involvement (HR = 1.81, 95% CI = 1.00 to 3.26; p = 0.049). Sex, fracture type (elementary versus associated), and year of surgery did not influence hip survivorship. CONCLUSIONS: CT is superior to radiographs for detecting residual displacement after acetabular fracture fixation. Hip survivorship is greater in patients with adequate (anatomic or imperfect) reduction on CT. Along with older age and posterior wall involvement, an inadequate reduction on CT is a risk factor for conversion to THA. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040130 TI - Volume-Outcome Relationship in Surgical Interventions for Spinal Metastases. AB - BACKGROUND: Surgery for spinal metastases is challenging and carries a high risk of perioperative morbidity and mortality. Procedures with such characteristics often exhibit a volume-outcome relationship. This has not been previously characterized for spinal metastasis surgery to our knowledge. METHODS: The Florida State Inpatient Database (2011 through 2014) was queried to identify patients who had undergone surgery for spinal metastases. Surgeon and hospital surgical volumes were compared with 90-day complication and readmission rates to develop procedural cut-points used to define high and low-volume providers. These were included in a multivariable logistic regression analysis that was adjusted for confounders. A separate analysis was performed to evaluate the effect of race/ethnicity and insurance status on the likelihood of receiving care from a high-volume surgeon or hospital. RESULTS: This study included 3,135 patients treated by 1,488 surgeons at 162 hospitals. Patients treated at low-volume hospitals had significantly higher odds of having postoperative complications (odds ratio [OR] = 1.47; 95% confidence interval [CI] = 1.13, 1.91) and readmissions (OR = 1.36; 95% CI = 1.06, 1.75). Those treated by low-volume surgeons also demonstrated a higher likelihood of complications (OR = 1.40; 95% CI = 1.16, 1.69) and readmissions (OR = 1.38; 95% CI = 1.17, 1.62). The likelihood of receiving intervention from a high-volume surgeon was significantly lower for African Americans (OR = 0.55; 95% CI = 0.41, 0.75) and Hispanics (OR = 0.60; 95% CI = 0.44, 0.83). The odds of being treated at a high-volume hospital were also significantly lower for African Americans (OR = 0.58; 95% CI = 0.40, 0.84) and Hispanics (OR = 0.28; 95% CI = 0.20, 0.38). CONCLUSIONS: There is a clear relationship between the volume and outcomes of surgical treatment of spinal metastases, with high-volume providers demonstrating reduced complication and readmission rates. Racial and ethnic minorities appear to experience health care segregation when it comes to surgical care for spinal metastases. Regionalization of care for these conditions may help improve access to high volume providers and mitigate disparities in care. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040131 TI - Acetabular Global Insufficiency in Patients with Down Syndrome and Hip-Related Symptoms: A Matched-Cohort Study. AB - BACKGROUND: The etiology of hip instability in Down syndrome is not completely understood. We investigated the morphology of the acetabulum and femur in patients with Down syndrome and compared measurements of the hips with those of matched controls. METHODS: Computed tomography (CT) images of the pelvis of 42 patients with Down syndrome and hip symptoms were compared with those of 42 age and sex-matched subjects without Down syndrome or history of hip disease who had undergone CT for abdominal pain. Each of the cohorts had 23 male and 19 female subjects. The mean age (and standard deviation) in each cohort was 11.3 +/- 5.3 years. The lateral center-edge angle (LCEA), acetabular inclination angle (IA), acetabular depth-width ratio (ADR), acetabular version, and anterior and posterior acetabular sector angles (AASA and PASA) were compared. The neck-shaft angle and femoral version were measured in the patients with Down syndrome only. The hips of the patients with Down syndrome were further categorized as stable (n = 21) or unstable (n = 63) for secondary analysis. RESULTS: The hips in the Down syndrome group had a smaller LCEA (mean, 10.8 degrees +/- 12.6 degrees compared with 25.6 degrees +/- 4.6 degrees ; p < 0.0001), a larger IA (mean, 17.4 degrees +/- 10.3 degrees compared with 10.9 degrees +/- 4.8 degrees ; p < 0.0001), a lower ADR (mean, 231.9 +/- 56.2 compared with 306.8 +/- 31.0; p < 0.0001), a more retroverted acetabulum (mean acetabular version as measured at the level of the centers of the femoral heads [AVC], 7.8 degrees +/- 5.1 degrees compared with 14.0 degrees +/- 4.5 degrees ; p < 0.0001), a smaller AASA (mean, 55.0 degrees +/- 9.9 degrees compared with 59.7 degrees +/- 7.8 degrees ; p = 0.005), and a smaller PASA (mean, 67.1 degrees +/- 10.4 degrees compared with 85.2 degrees +/- 6.8 degrees ; p < 0.0001). Within the Down syndrome cohort, the unstable hips showed greater femoral anteversion (mean, 32.7 degrees +/- 14.6 degrees compared with 23.6 degrees +/- 10.6 degrees ; p = 0.002) and worse global acetabular insufficiency compared with the stable hips. No differences between the unstable and stable hips were found with respect to acetabular version (mean AVC, 7.8 degrees +/- 5.5 degrees compared with 7.6 degrees +/- 3.8 degrees ; p = 0.93) and the neck-shaft angle (mean, 133.7 degrees +/- 6.7 degrees compared with 133.2 degrees +/- 6.4 degrees ; p = 0.81). CONCLUSIONS: Patients with Down syndrome and hip-related symptoms had more retroverted and shallower acetabula with globally reduced coverage of the femoral head compared with age and sex matched subjects. Hip instability among those with Down syndrome was associated with worse global acetabular insufficiency and increased femoral anteversion, but not with more severe acetabular retroversion. No difference in the mean femoral neck-shaft angle was observed between the stable and unstable hips in the Down syndrome cohort. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040132 TI - A Call for Standardization in Platelet-Rich Plasma Preparation Protocols and Composition Reporting: A Systematic Review of the Clinical Orthopaedic Literature. AB - BACKGROUND: Platelet-rich plasma (PRP) is a blood-derived preparation whose use has grown exponentially in orthopaedic practice. However, there remains an unclear understanding of the biological properties and effects of PRP on musculoskeletal healing. Heterogeneous processing methods, unstandardized nomenclature, and ambiguous classifications make comparison among studies challenging. A comprehensive assessment of orthopaedic clinical PRP trials is key to unraveling the biological complexity of PRP, while improving standardized communication. Toward this goal, we performed a systematic review of the PRP preparation protocols and PRP composition utilized in clinical trials for the treatment of musculoskeletal diseases. METHODS: A systematic review of the literature was performed from 2006 to 2016. Inclusion criteria were human clinical trials, English-language literature, and manuscripts that reported on the use of PRP in musculoskeletal/orthopaedic conditions. Basic-science articles, editorials, surveys, special topics, letters to the editor, personal correspondence, and nonorthopaedic applications (including cosmetic use or dental application studies) were excluded. RESULTS: A total of 105 studies (in 104 articles) met the inclusion criteria for analysis. Of these studies, only 11 (10%) provided comprehensive reporting that included a clear description of the preparation protocol that could be used by subsequent investigators to repeat the method. Only 17 studies (16%) provided quantitative metrics on the composition of the final PRP product. CONCLUSIONS: Reporting of PRP preparation protocols in clinical studies is highly inconsistent, and the majority of studies did not provide sufficient information to allow the protocol to be reproduced. Furthermore, the current reporting of PRP preparation and composition does not enable comparison of the PRP products being delivered to patients. A detailed, precise, and stepwise description of the PRP preparation protocol is required to allow comparison among studies and provide reproducibility. PMID- 29040133 TI - What's New in Shoulder and Elbow Surgery. PMID- 29040134 TI - Mortality by Timing of Hip Fracture Surgery: Factors and Relationships at Play. AB - In hip fracture care, it is disputed whether mortality worsens when surgery is delayed. This knowledge gap matters when hospital managers seek to justify resource allocation for prioritizing access to one procedure over another. Uncertainty over the surgical timing-death association leads to either surgical prioritization without benefit or the underuse of expedited surgery when it could save lives. The discrepancy in previous findings results in part from differences between patients who happened to undergo surgery at different times. Such differences may produce the statistical association between surgical timing and death in the absence of a causal relationship. Previous observational studies attempted to adjust for structure, process, and patient factors that contribute to death, but not for relationships between structure and process factors, or between patient and process factors. In this article, we (1) summarize what is known about the factors that influence, directly or indirectly, both the timing of surgery and the occurrence of death; (2) construct a dependency graph of relationships among these factors based explicitly on the existing literature; (3) consider factors with a potential to induce covariation of time to surgery and the occurrence of death, directly or through the network of relationships, thereby explaining a putative surgical timing-death association; and (4) show how age, sex, dependent living, fracture type, hospital type, surgery type, and calendar period can influence both time to surgery and occurrence of death through chains of dependencies. We conclude by discussing how these results can inform the allocation of surgical capacity to prevent the avoidable adverse consequences of delaying hip fracture surgery. PMID- 29040135 TI - Defining Leadership: The Presidential Address to the American Orthopaedic Association, San Diego, California, June 11, 2010: AOA Critical Issues. PMID- 29040136 TI - Using Clinical Outcomes to Improve Preclinical Testing: Commentary on an article by Peter A. Devane, MBChB, MSc, FRACS, et al.: "Highly Cross-Linked Polyethylene Reduces Wear and Revision Rates in Total Hip Arthroplasty. A 10-Year Double Blinded Randomized Controlled Trial". PMID- 29040137 TI - Minimally Invasive THA: Where Are We Now and Where Are We Heading?: Commentary on an article by Ciara Stevenson, FRCS, et al.: "Minimal Incision Total Hip Arthroplasty. A Concise Follow-up Report on Functional and Radiographic Outcomes at 10 Years". PMID- 29040138 TI - Vitamin-D Supplementation: A Low-Risk, High-Gain Therapy to Prevent PJI?: Commentary on an article by Vishal Hegde, MD, et al.: "Single-Dose, Preoperative Vitamin-D Supplementation Decreases Infection in a Mouse Model of Periprosthetic Joint Infection". PMID- 29040139 TI - CT After ORIF of Acetabular Fractures Detects Residual Displacement Not Seen on Radiography and Correlates with Osteoarthritis Risk and THA: Commentary on an article by Diederik O. Verbeek, MD, et al.: "Postoperative CT Is Superior for Acetabular Fracture Reduction Assessment and Reliably Predicts Hip Survivorship". PMID- 29040140 TI - Reply. PMID- 29040141 TI - Proof of Concept Study for the Design, Manufacturing, and Testing of a Patient Specific Shape Memory Device for Treatment of Unicoronal Craniosynostosis. AB - Treatment of unicoronal craniosynostosis is a surgically challenging problem, due to the involvement of coronal suture and cranial base, with complex asymmetries of the calvarium and orbit. Several techniques for correction have been described, including surgical bony remodeling, early strip craniotomy with orthotic helmet remodeling and distraction. Current distraction devices provide unidirectional forces and have had very limited success. Nitinol is a shape memory alloy that can be programmed to the shape of a patient-specific anatomy by means of thermal treatment.In this work, a methodology to produce a nitinol patient-specific distractor is presented: computer tomography images of a 16 month-old patient with unicoronal craniosynostosis were processed to create a 3 dimensional model of his skull and define the ideal shape postsurgery. A mesh was produced from a nitinol sheet, formed to the ideal skull shape and heat treated to be malleable at room temperature. The mesh was afterward deformed to be attached to a rapid prototyped plastic skull, replica of the patient initial anatomy. The mesh/skull construct was placed in hot water to activate the mesh shape memory property: the deformed plastic skull was computed tomography scanned for comparison of its shape with the initial anatomy and with the desired shape, showing that the nitinol mesh had been able to distract the plastic skull to a shape close to the desired one.The shape-memory properties of nitinol allow for the design and production of patient-specific devices able to deliver complex, preprogrammable shape changes. PMID- 29040142 TI - Proposal of a Budget-Friendly Camera Holder for Endoscopic Ear Surgery. AB - Endoscopic ear surgery (EES) is increasingly a preferred technique in otologic society. It offers excellent visualization of the anatomical structures directly and behind the corners with variable angled telescopes. It also provides reduced operative morbidity due to being able to perform surgical interventions with less invasive approaches. Operative preparation and setup time and cost of endoscopy system are less expensive compared with surgical microscopes. On the other hand, the main disadvantage of EES is that the surgery has to be performed with 1 single hand. It is certainly restrictive for an ear surgeon who has been operating with 2 hands under otologic microscopic views for years and certainly requires a learning period and perseverance. Holding the endoscope by a second surgeon is not executable because of insufficient surgical space.Endoscope/camera holders have been developed for those who need the comfort and convenience afforded by double-handed microscopic ear surgery. An ideal endoscope holder should be easy-to-set up, easily controlled, providing a variety of angled views, allowing the surgeon to operate with 2 hands and, budget-friendly. In this article, a commercially available 11-inch magic arm camera holder is proposed by the authors to be used in EES due to its versatile, convenient, and budget friendly features. It allows 2-handed EES through existing technology and is affordable for surgeons looking for a low-cost and practical solution. PMID- 29040143 TI - Extragingival Pregnancy Pyogenic Granuloma on the Lip. AB - Pregnancy pyogenic granuloma is considered a benign common growth that usually develops on the gingiva in the second and third trimester of gestation, in response to local irritation, trauma or hormonal factors. Here, the authors report a case of a primigravida who presented an extragingival pyogenic granuloma with a rapid progression in the post-partum. The occurrence on the lower lip in the first few days after delivery was a relatively rarity in the present case which provoked a meaningful state of anxiety and cancerophobia to the female. Complete excision was curative and brought immediate relief of pain and discomfort. This clinical report highlights the possibility of pyogenic granuloma presenting like a rapid-growing mass on the lip and the importance of clinical differential diagnosis of such presentation in this atypical location. PMID- 29040144 TI - Surgical Treatment of Dentofacial Deformities Caused by Juvenile Idiopathic Arthritis. AB - The purpose of our retrospective study was to evaluate the results of orthognathic treatment, distraction osteogenesis, and/or prosthetic reconstruction of the temporomandibular joints in patients with juvenile idiopathic arthritis (JIA).Twelve patients with severely affected temporomandibular joints (TMJs) and reduced ramus height were treated with mandibular advancement with orthognathic surgery (11) and additional bilateral or unilateral mandibular ramus distraction (3) or additional bilateral or unilateral prosthetic reconstruction of the TMJ (3). One patient was treated surgically with bilateral TMJ prosthetic reconstruction only. The patients were followed up clinically and radiologically with emphasis on healing, TMJ function, stability of the occlusion, skeletal stability, and facial appearance for an average of 2.3 years after the final surgery. The mean mandibular advancement was 10.1 mm. The mean relapse at pogonion was 2.1 mm, which represents 20.8% of the surgical advancement. The occlusion was stable in 11/12 patients. The TMJ function was good and the facial esthetics improved in all patients. Orthognathic treatment and mandibular ramus distraction osteogenesis provide beneficial lengthening of the mandibular body in JIA patients with asymptomatic and stabile condyles. In adult patients with relapse of the disease or postoperative condylar relapse prosthetic total joint replacement is a reliable and safe alternative. PMID- 29040145 TI - Neutrophil-Lymphocyte and Platelet-Lymphocyte Ratio for the Effusion Viscosity in Otitis Media. PMID- 29040146 TI - The Role of Preoperative Imaging in the Management of Nonsyndromic Lambdoid Craniosynostosis. AB - BACKGROUND: The necessity of imaging for patients with craniosynostosis is controversial. Lambdoid synostosis is known to be associated with additional anomalies, but the role of imaging in this setting has not been established. The purpose of this study was to evaluate the impact of preoperative imaging on intraoperative and postoperative management among patients undergoing operative intervention for lambdoid craniosynostosis. METHODS: A retrospective review of patients undergoing cranial vault remodeling for lambdoid craniosynostosis between January 2006 and 2014 was conducted. Patient demographics, age at computed tomography scan, age at surgery, results of the radiologic evaluation, operative technique, and modification of the diagnosis following the radiologic studies were analyzed. A pediatric neuroradiology and the surgical team interpreted the radiographs. The primary outcome was change in intraoperative or postoperative management based on imaging results. RESULTS: A total of 11 patients were diagnosed with lambdoid synostosis. Of these patients, 81.8% had abnormalities on imaging relevant to operative planning. The most common anomalies were Chiari I malformation (45%) and venous anomalies of the posterior fossa (36%). Preoperative imaging altered the management of 9 (81.8%) patients. Closer follow-up was required for 6 patients (54%). Suboccipital decompression was performed in 4 patients (36%). Venous anomalies were found in 4 patients (36%). The diagnosis was changed from positional plagiocephaly to lambdoid synostosis in 2 patients (18%). CONCLUSIONS: Given the frequency and significance of radiographic abnormalities in the setting of lamboid synostosis, preoperative imaging should be considered during the operative planning phase as it can affect postoperative and intraoperative management. PMID- 29040147 TI - Longitudinal Assessment of Developmental Outcomes in Infants Undergoing Late Craniosynostosis Repair. AB - Evaluation of infants with craniosynostosis for surgical intervention, as opposed to conservative management, remains a challenge within the field of craniofacial surgery. Studies have consistently demonstrated that surgical repair of craniosynostosis is ideally performed between 3 and 12 months of age. As such, there is limited data regarding neurocognitive development in infants who initially present with uncorrected craniosynostosis after 12 months of age. Moreover, the impact of cranial vault surgery on neurocognitive development at all ages remains under investigation. A prospective, nonrandomized study was performed. All children with nonsyndromic craniosynostosis who presented for initial evaluation after 12 months of age were enrolled. The Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III) was utilized to assess pre- and postoperative cognitive development and comparisons were made to normative values. Developmental delay is defined as scoring < 85. Five infants, average age 26 months (13-43 months) at initial presentation, underwent cranial vault remodeling and developmental testing. Fused cranial sutures involved: metopic (n = 4), and right coronal (n = 1). Cognitive testing demonstrated that 4 of 5 infants (80%) were developmentally delayed at presentation (scores: 60, 70, 72, and 80), and 1 infant was within normal limits (score: 100). Postoperative testing was performed between 2 and 12 months postoperatively. Universal improvement was observed in infants who were delayed prior to surgery (80, 80, 75, and 90, respectively). The infant who was not delayed prior to surgery remained within normal limits after surgery. This study demonstrates an association between cranial vault surgery and cognitive improvement in infants presenting late with developmental delay. PMID- 29040148 TI - Long-Term Effects of Bone Morphogenetic Protein-2-Loaded Calcium Phosphate on Maxillary Sinus Lift Surgery for Delayed and Simultaneous Dental Implantation. AB - Maxillary sinus lift surgery (MSLS) is considered to be a useful treatment method for patients with atrophic alveolar bone. Choosing a suitable surgical procedure to simultaneously decrease graft absorption and obtain long-term survival of dental implants is still a challenge. In this study, 20 patients received MSLS with graft of bone morphogenetic protein 2 (BMP2)-loaded calcium phosphate. Dental implants were placed simultaneously in 10 patients receiving MSLS (1-stage group), and in 10 patients receiving dental implants with a 3 to 6 months delay (2-stage group). The effects were evaluated based on clinical and radiographic examination during a 4 to 5 years follow-up. The results showed that only 1 perforation of the maxillary sinus mucosa was observed in 1-stage group, and was patched with a collagen membrane. An average bone gain of 6.8 mm was observed, and all implants exhibited no looseness, peri-implantitis, or fracture, all of which were stable during the follow-up and exhibited nice dental function during a 4 to 5 years follow-up. The loss of peri-implant bone height was 1.12 +/- 0.47 and 1.10 +/- 0.39 mm, the probing depth of periodontal pocket was 1.79 +/- 0.62 and 1.81 +/- 0.71 mm, the sulcular bleeding index was 1.63 +/- 0.47 and 1.72 +/- 0.54 in 1-stage group and 2-stage group, respectively, and no significant differences existed between these 2 groups. These findings implied that BMP2 loaded calcium phosphate may be a suitable material for MSLS, especially for patients with minimal bone height. Clinicians can use the 1- or 2-stage technique based on clinical condition, patients' choice and clinicians' experience. In patients where implants cannot be stabilized for patients with minimal bone height, 2-stage surgery may be more suitable. PMID- 29040149 TI - The Pantheon Variant of the Classic Cathedral Dome Procedure for Parieto Occipital Skull Deformities. AB - OBJECTIVE: To describe a new technique for the reconstruction of parieto occipital skull deformities. METHODS AND RESULTS: The technique is a variant of the previously described "cathedral dome procedure" used for frontal skull deformities. The authors apply the same principle of remodeling by making meridional slat craniotomies surrounding the depressed dome of the posterior skull deformity, followed by "green-stick fracture-reshaping" of the meridional slats to elevate and support the excised depressed dome. The authors present an illustrative patient with a follow-up of 2 years and an excellent cosmetic result. CONCLUSION: The authors introduce a new operative technique for the reconstruction of parieto-occipital skull deformities with excellent long-term results. The freshly reconstructed occiput resembles the dome of the pantheon in Rome, Italy, whose unique features inspired us to name this procedure the "Pantheon" variant of the cathedral dome operation. PMID- 29040150 TI - Clinical Evaluation of Standardized Fronto-Orbital Advancement for Correction of Isolated Trigonocephaly. AB - Corrective surgery of trigonocephaly is a major challenge, owing to the complex development of the craniofacial skull. Although reports on the clinical success of standardized fronto-orbital advancement have been promising, there is a lack of studies, assessing this method. Hence, the aim of our study was to evaluate the clinical outcome of a standardized fronto-orbital advancement procedure for correction of isolated nonsyndromic trigonocephaly, in our patient cohort. The retrospective study included 30 patients from 2008 to 2015. Inclusion criteria were treatment-naive children with isolated nonsyndromic trigonocephaly, being treated with standardized frontoorbital advancement in our department. We considered postoperative complications and the Whitaker Score to evaluate the success of the clinical outcome. Surgery was performed at a mean age of 9.3 months. The mean operation time was 153 minutes. All patients were assigned I according to the Whitaker score. One patient suffered from a small inconsequential subdural hematoma. Another patient suffered from dural tears, which were identified and treated intraoperatively. No major complications occurred within our patient cohort. The standardized fronto-orbital advancement is a safe and successful method, as it is associated with a high morphological outcome and low complication rate. PMID- 29040151 TI - Sex Differences in Vascular Reactivity to Angiotensin II During the Evolution of Myocardial Infarction. AB - The influence of sex on the vascular response during the progression of myocardial infarction (MI) has not been extensively studied. In this work, we analyzed the differences of the vasoconstriction induced by angiotensin II (Ang II) in the absence and presence of valsartan (200 nM) on the aortic rings of male and female Wistar rats at 2, 4, 24, and 48 hours and 1, 2, 3, and 4 weeks after induction of MI. In the aortic rings of males, an increase was observed in the contractile response that lasts up to 4 weeks; on females, this effect is diminished since 48 hours until reaching sham group values at 2 weeks of coronary occlusion. The incubation of valsartan generated greater reduction on vasoconstriction in males than females. In relation to the determination of infarct areas, we found them between 30% and 40% in all experimental groups. In addition, the index of hypertrophy was determined and no significant changes were observed in female rats, while in males we reported an increase at 2, 3, and 4 weeks. In conclusion, we found differences in vascular reactivity due to sex, as well as on the response of Ang II via AT1 during the evolution of MI. PMID- 29040152 TI - Acute Laryngeal Dystonia Associated With Asenapine Use: A Case Report. PMID- 29040153 TI - Vortioxetine and Aripiprazole Combination in Treatment-Resistant Obsessive Compulsive Disorder: A Case Report. PMID- 29040154 TI - Clozapine-Associated Neutropenia and Agranulocytosis. PMID- 29040155 TI - The complexities of fibromyalgia and its comorbidities. AB - PURPOSE OF REVIEW: Fibromyalgia syndrome (FMS) is defined as chronic, widespread musculoskeletal pain and tenderness with concomitant mood and cognitive dysfunction. Several comorbidities have been reported to be associated with FMS. We reviewed the literature concerning the most noteworthy chronic conditions associated with FMS. RECENT FINDINGS: There is mounting evidence displaying the concurrence of fibromyalgia and coexisting medical and psychiatric conditions. Such comorbidities may blur the classical clinical presentations and erroneously lead to misinterpretation of disease activity. The recognition of this fact should be underlined, as misrecognition may lead to excessive therapy and avoidable side-effects of medications on the one hand and to a better handling of FMS on the other hand, leading to improved clinical outcomes. SUMMARY: A greater proportion of psychiatric and rheumatologic disorders are associated with FMS patients than the population. Consequently, physicians treating patients with either condition should keep in mind that these patients may have such comorbidities and should be treated accordingly. PMID- 29040156 TI - Accelerated atheromatosis and arteriosclerosis in primary systemic vasculitides: current evidence and future perspectives. AB - PURPOSE OF REVIEW: Primary systemic vasculitides (PSV) encompass a subset of autoimmune diseases, characterized by inflammation of blood vessels. Atheromatosis and arteriosclerosis may be accelerated in several PSV and account for the increased rate of cardiovascular morbidity that some exhibit. We aimed to summarize recent studies reporting on the acceleration of atheromatosis and/or arteriosclerosis in each type of PSV, using state-of-the-art noninvasive vascular biomarkers with clinical value as end points. RECENT FINDINGS: Limited number of PSV patients and methodology limitations reduce the value of many published studies. Accelerated atheromatosis, as measured by the use of carotid ultrasonagraphy (plaques and intimal-medial thickening) and increased arterial stiffening, as measured by the use of applanation tonometry (carotid to femoral pulse wave velocity), are currenly well established in Takayasu arteritis, Kawasaki disease and Behcet's disease. The association of atheromatosis and arteriosclerosis with polyarteritis nodosa and small vessel vasculitides remains less established and studied, so far. SUMMARY: Accelerated atheromatosis and arteriosclerosis or arteriosclerosis are established in some PSV. The potential clinical value of easy-to-measure and clinically useful noninvasive vascular biomarkes prompts the need for large prospective cohorts in order to provide useful future guidance regarding the prognosis and treatment of PSV patients. PMID- 29040157 TI - Development and use of biochemical markers in osteoarthritis: current update. AB - PURPOSE OF REVIEW: There is an increasing demand for noninvasive and descriptive biochemical markers (biomarkers) in osteoarthritis; for enabling early drug development (including translational research), evaluating clinical trial at an early stage and for subtyping. Purpose of the review is to review and comment on current availability of such biomarkers. RECENT FINDINGS: Many different biomarkers have been tested in the last 18 months. The main focus has been on testing whether the biomarkers, whether is reflect joint tissue turnover or inflammatory status, can differentiate osteoarthritis patients from healthy controls or whether the biomarkers are associated with progression. Less than a handful of studies, investigate the role of the biomarkers as response markers. Thus, there is still a great need for developing biomarkers that reflect disease activity and thereby can be used for treatment response or patient phenotyping. SUMMARY: Osteoarthritis is the most common form of joint disease. This presents the osteoarthritis research community and pharmaceutical companies developing disease-modifying osteoarthritis drugs (DMOADs) with great opportunities. There are different osteoarthritis subtypes, which complicates the traditional approaches for developing new treatments. If we can identify new markers that can distinguish different subtypes, this can greatly facilitate drug development from early discovery to late clinical development. PMID- 29040158 TI - The Association of Changing Practice Settings on Maintenance of Certification Exam Outcomes: A Comparative Study of General Internists Over Time. AB - PURPOSE: To investigate how changing to or from solo practice settings relates to maintenance of certification (MOC) exam performance. METHOD: The authors conducted a retrospective analysis of exam pass/fail outcomes for 7,112 physicians who successfully completed their initial MOC cycle from 2000 to 2004. Initial physician MOC practice characteristics records, demographic information, and exam performance were linked with exam pass/fail outcomes from their second MOC cycle from 2006 to 2014 (5,215 physicians after attrition). Exam pass/fail outcomes for physicians' second MOC cycle were compared among four groups: those who remained in group practice across both MOC cycles, those who changed from group to solo practice, those who changed from solo to group practice, and those who remained in solo practice across both MOC cycles. RESULTS: Physicians who changed from solo to group practice performed significantly better than those who remained in solo practice (odds ratio [OR] = 1.67; 95% confidence interval [CI] = 1.11, 2.51; P = .027). Conversely, physicians changing from group to solo practice performed significantly worse than physicians staying in group practice (OR = 0.60; 95% CI = 0.45, 0.80; P = .002). Meanwhile, physicians who changed from solo to group practice performed similarly to physicians remaining in group practice (OR = 0.95; 95% CI = 0.67, 1.35; P = 0.76). CONCLUSIONS: Changes in solo/group practice status were associated with second-cycle MOC exam performance. This study provides evidence that the context in which a physician practices may have an impact on their MOC exam performance. PMID- 29040159 TI - New Approach for Differentiation of Bone Marrow Mesenchymal Stem Cells Toward Chondrocyte Cells With Overexpression of MicroRNA-140. AB - Mesenchymal stem cells are widely stimulated by transforming growth factor beta-3 (TGFbeta3) for chondrocyte differentiation. The objective of our study was to establish a new method for differentiation of human mesenchymal stem cells toward chondrocyte by overexpression of MicroRNA-140 (miR-140), and also this method was compared with method of induction with TGFbeta3 in high-cell density culture systems. Mesenchymal stem cells were harvested from bone marrow of human. We prepared vectors and then was used for recombinant Lenti virus production in HEK 293 cell. Transducted cells were cultured in monolayer culture system and were harvested after days 7, 14, and 21. Real time polymerase chain reaction (RT-PCR) was performed to evaluate the cartilage-specific genes in the mRNA levels. Also, in order to confirm our results, we have done immunocytochemistry technique. Bone marrow mesenchymal stem cells (BMSCs) were transducted with recombinant Lenti virus, and miR-140 was expressed. Immunocytochemical method confirmed the differentiation of BMSC toward chondrocyte with handling cartilage matrix genes. Also real-time PCR showed that after expression of miR-140 in transducted BMSCs significantly increased gene expression of collagen type II and aggrecan and downregulated expression of collagen type I when compared with the mRNA levels measured in nontransducted BMSCs. These results were compatible compared with TGFbeta3 induction method as control positive. In this study, we described a new approach and technique that may be applied for differentiation of BMSCs to chondrocyte instead of stimulation with TGFbeta3. Our data implies that miR-140 is a potent chondrogenic differentiation inducer for BMSCs, and we have shown increasing chondrogenic differentiation by using miR-140 overexpression. PMID- 29040160 TI - ECMO: 40 Years Later. PMID- 29040161 TI - Prognostic factor analysis in 325 patients with Graves' disease treated with radioiodine therapy. AB - INTRODUCTION: I therapy is a choice for Graves' hyperthyroidism. Several factors that affect the success of I treatment in Graves' disease (GD) patients have been put forward. The aim of this retrospective study was to evaluate the factors influencing the success of I therapy and the occurrence of hypothyroidism after I therapy. PATIENTS AND METHODS: We reviewed 325 GD patients, who were well documented out of 779 cases, treated with I in the First Affiliated Hospital of Xi'an Jiaotong University between 2010 and 2016. We collected the potential influencing factors, including demographic data (age, sex, family history), iodine intake state, antithyroid drugs (ATD) taking, thyroid texture, complications of hyperthyroidism, physical and laboratory examinations [thyroid weight, effective I half-life time (Teff), 24-h iodine uptake rate, tri iodothyronine, thyroxine, free tri-iodothyronine (FT3), free thyroxine, thyroid stimulating hormone, thyroglobulin antibody, thyroid microsome antibody, thyrotropin receptor antibody], and final administered dosages according to Quimby formula. The correlations between the prognosis of GD patients and these factors were analyzed by logistic regression analysis. RESULTS: Out of 325 patients, 247 (76.00%) were treated successfully with radioiodine. GD patients who were cured by I therapy were more likely to have smaller thyroid [odds ratio (OR)=0.988, 95% confidence interval (CI)=0.980-0.996, P=0.002], lower FT4 levels (OR=0.993, 95% CI=0.988-0.997, P=0.002), and shorter time of ATD withdrawal before I treatment (OR=0.985, 95% CI=0.975-0.996, P=0.002). Hypothyroidism occurred in 132 (41.00%) out of 325 patients. There was an increased risk of early hypothyroidism in patients with lower 24-h iodine uptake (OR=0.964, 95% CI=0.941-0.988, P=0.004), and treated with a lower total dose of iodine (OR=0.892, 95% CI=0.824-0.965, P=0.005) and a higher iodine dose per garm of thyroid tissue (OR=5.414E+14, 95% CI=45.495-6.444E+27, P=0.027). CONCLUSION: Our results showed that I treatment was more successful in patients with lower weight of the thyroid, lower free thyroxine level, and shorter ATD taking period. Furthermore, early hypothyroidism after radioiodine treatment was more likely to occur in patients with lower 24-h iodine uptake, lower total dose of iodine, and higher iodine dose per garm of thyroid tissue. PMID- 29040164 TI - Brief Report: CD52 Expression on CD4+ T Cells in HIV-Positive Individuals on cART. AB - BACKGROUND: HIV persists in a latent state in quiescent CD4 T cells preventing eradication of HIV. CD52 is a surface molecule modulated by HIV. We aimed at examining factors related to CD52 expression on CD4 T cells in HIV-positive individuals and the impact of initiation of combination antiretroviral therapy (cART). METHODS: Peripheral blood mononuclear cells from 18 HIV-positive individuals and 10 uninfected age- and sex-matched controls were examined by flow cytometry for CD38 and CD52 expression on CD4 T cells. Stimulation assays were performed on 8 healthy blood donors to determine a cutoff for CD52 expression. RESULTS: All examined CD4 T cells expressed CD52. However, both CD4 T cells with higher (CD52) and with lower CD52 expression (CD52dim) were found in HIV-positive individuals compared to uninfected controls. Two % CD52dim cells defined groups of high and low CD52: the group of individuals with high CD52 had higher CD4 counts at baseline (447 vs. 54 cells/uL, P = 0.02) and higher increase in CD4 counts during follow-up compared with low CD52 (P = 0.02). After 12 months of cART, CD52 increased (median fluorescence intensity 4846 vs. 5621, P < 0.05), whereas CD38 decreased (median fluorescence intensity 1519 vs. 730, P < 0.0001). CONCLUSIONS: All HIV-positive individuals in this cohort had CD4 T cells that expressed CD52. Higher CD4 counts were found in those with high CD52. Furthermore, an increase in CD52 was found after 12 months of cART, indicating that anti-CD52 antibodies may be more efficient for depletion of CD4 T cells in HIV-positive individuals on cART. PMID- 29040162 TI - Brief Report: AIDS-Defining Events and Deaths in HIV-Infected Children and Adolescents on Antiretrovirals: A 14-Year Study in Thailand. AB - BACKGROUND: Data are scarce on the long-term clinical outcomes of perinatally HIV infected children and adolescents receiving antiretroviral therapy (ART) in low/middle-income countries. We assessed the incidence of mortality before (early) and after (late) 6 months of ART and of the composite outcome of new/recurrent AIDS-defining event or death >6 months after ART start (late AIDS/death) and their associated factors. METHODS: Study population was perinatally HIV-infected children (<=18 years) initiating ART within the Program for HIV Prevention and Treatment observational cohort (NCT00433030). Factors associated with late AIDS/death were assessed using competing risk regression models accounting for lost to-follow-up and included baseline and time-updated variables. RESULTS: Among 619 children, "early" mortality incidence was 99 deaths per 1000 person-years of follow-up [95% confidence interval (CI): 69 to 142] and "late" mortality 6 per 1000 person-years of follow-up (95% CI: 4 to 9). Of the 553 children alive >6 months after ART initiation, median age at ART initiation was 6.4 years, CD4% 8.2%, and HIV-RNA load 5.1 log10 copies/mL. Thirty-eight (7%) children developed late AIDS/death after median time of 3.3 years: 24 died and 24 experienced new/recurrent AIDS-defining events (10 subsequently died). Factors independently associated with late AIDS/death were current age >=13 years (adjusted subdistribution hazard ratio 4.9; 95% CI: 2.4 to 10.1), HIV-RNA load always >=400 copies/mL (12.3; 95% CI: 4.0 to 37.6), BMI-z-score always <-2 SD (13.7; 95% CI: 3.4 to 55.7), and hemoglobin <8 g/dL at least once (4.6; 95% CI: 2.0 to 10.5). CONCLUSIONS: After the initial 6 months of ART, being an adolescent, persistent viremia, poor nutritional status, and severe anemia were associated with poor clinical outcomes. This supports the need for novel interventions that target children, particularly adolescents with poor growth and uncontrolled viremia. PMID- 29040163 TI - Adipose Tissue is Enriched for Activated and Late-Differentiated CD8+ T Cells and Shows Distinct CD8+ Receptor Usage, Compared With Blood in HIV-Infected Persons. AB - BACKGROUND: Adverse viral and medication effects on adipose tissue contribute to the development of metabolic disease in HIV-infected persons, but T cells also have a central role modulating local inflammation and adipocyte function. We sought to characterize potentially proinflammatory T-cell populations in adipose tissue among persons on long-term antiretroviral therapy and assess whether adipose tissue CD8 T cells represent an expanded, oligoclonal population. METHODS: We recruited 10 HIV-infected, non-diabetic, overweight or obese adults on efavirenz, tenofovir, and emtricitabine for >4 years with consistent viral suppression. We collected fasting blood and subcutaneous abdominal adipose tissue to measure the percentage of CD4 and CD8 T cells expressing activation, exhaustion, late differentiation/senescence, and memory surface markers. We performed T-cell receptor (TCR) sequencing on sorted CD8 cells. We compared the proportion of each T-cell subset and the TCR repertoire diversity, in blood versus adipose tissue. RESULTS: Adipose tissue had a higher percentage of CD3CD8 T cells compared with blood (61.0% vs. 51.7%, P < 0.01) and was enriched for both activated CD8HLA-DR T cells (5.5% vs. 0.9%, P < 0.01) and late-differentiated CD8CD57 T cells (37.4% vs. 22.7%, P < 0.01). Adipose tissue CD8 T cells displayed distinct TCRbeta V and J gene usage, and the Shannon Entropy index, a measure of overall TCRbeta repertoire diversity, was lower compared with blood (4.39 vs. 4.46; P = 0.05). CONCLUSIONS: Adipose tissue is enriched for activated and late differentiated CD8 T cells with distinct TCR usage. These cells may contribute to tissue inflammation and impaired adipocyte fitness in HIV-infected persons. PMID- 29040165 TI - Dating Violence Against HIV-Infected Youth in South Africa: Associations With Sexual Risk Behavior, Medication Adherence, and Mental Health. AB - BACKGROUND: As perinatal HIV-infected youth become sexually active, the potential for onward transmission becomes an increasing concern. In other populations, intimate partner violence (IPV) is a risk factor for HIV acquisition. We build on this critical work by studying the role of IPV in facilitating onward transmission among HIV-infected youth-an important step toward effective intervention. SETTING: Soweto, South Africa. METHODS: Self-report surveys were completed by 129 perinatal HIV-infected female youth (aged 13-24 years). We calculated the IPV prevalence and used logistic models to capture the association between IPV and health outcomes known to facilitate onward HIV transmission (eg, risky sex, poor medication adherence, depression, and substance abuse). RESULTS: A fifth of perinatal HIV-infected participants reported physical and/or sexual IPV in the past year; one-third reported lifetime IPV. Childhood adversity was common and positively associated with IPV. Past-year physical and/or sexual IPV was positively correlated with high-risk sex [odds ratio (OR) = 8.96; 95% confidence interval (CI): 2.78 to 28.90], pregnancy (OR = 6.56; 95% CI: 1.91 to 22.54), poor medication adherence to antiretroviral therapy (OR = 5.37; 95% CI: 1.37 to 21.08), depression (OR = 4.25; 95% CI: 1.64 to 11.00), and substance abuse (OR = 4.11; 95% CI: 1.42 to 11.86). Neither past-year nor lifetime IPV was associated with viral load or HIV status disclosure to a partner. CONCLUSIONS: We find that IPV may increase risk for onward HIV transmission in perinatal HIV infected youth by both increasing engagement in risky sexual behaviors and lowering medication adherence. HIV clinics should consider integrating primary IPV prevention interventions, instituting routine IPV screening, and collocating services for victims of violence. PMID- 29040166 TI - Measurement of Retinal Vessels as a Biomarker of Cerebrovascular Aging in Older HIV-Positive Men Compared With Controls. AB - BACKGROUND: To compare retinal vascular measurements, biomarkers of cerebral small vessel disease, in HIV-positive men aged 50 years and older with similarly aged HIV-negative men and younger HIV-positive men. METHODS: We recruited white, nondiabetic men into a cross-sectional substudy of a larger cohort including 3 demographically matched groups. Optic disc-centered 45-degree color fundus photographs were used to calculate central retinal arterial and venous caliber and the arterial-venous ratio (AVR). We used univariate and multivariable linear regression to compare retinal vessel measurements in the 3 groups and to identify factors associated with AVR. RESULTS: All HIV-positive men were virologically suppressed. In a multivariable model, study group was not associated with AVR [adjusted beta 0.010 for HIV-positive men <50 (n = 39) compared with HIV-positive men aged >=50 years (n = 120), 95% confidence interval [CI] -0.018 to 0.038, P = 0.47; adjusted beta 0.00002 for HIV-negative men >=50 years (n = 52), 95% CI 0.022 to 0.022, P = 0.99]. Factors associated with lower AVR were systolic blood pressure (adjusted beta -0.009 per +10 mm Hg, 95% CI -0.015 to -0.003, P = 0.002), history of stroke or transient ischemic attack (adjusted beta -0.070, 95% CI -0.12 to -0.015, P = 0.01), and recent recreational drug use (adjusted beta 0.037, 95% CI -0.057 to -0.018, P = 0.0002). CONCLUSIONS: There were no differences in retinal vascular indices between HIV-positive men aged >=50 years and HIV-negative men aged >=50 years or HIV-positive men aged <50 years, suggesting that HIV is not associated with an increased burden of cerebral small vessel disease. PMID- 29040167 TI - Country of Birth of Children With Diagnosed HIV Infection in the United States, 2008-2014. AB - BACKGROUND: Diagnoses of HIV infection among children in the United States have been declining; however, a notable percentage of diagnoses are among those born outside the United States. The impact of foreign birth among children with diagnosed infections has not been examined in the United States. METHODS: Using the Centers for Disease Control and Prevention National HIV Surveillance System, we analyzed data for children aged <13 years with diagnosed HIV infection ("children") in the United States (reported from 50 states and the District of Columbia) during 2008-2014, by place of birth and selected characteristics. RESULTS: There were 1516 children [726 US born (47.9%) and 676 foreign born (44.6%)]. US-born children accounted for 70.0% in 2008, declining to 32.3% in 2013, and 40.9% in 2014. Foreign-born children have exceeded US-born children in number since 2011. Age at diagnosis was younger for US-born than foreign-born children (0-18 months: 72.6% vs. 9.8%; 5-12 years: 16.9% vs. 60.3%). HIV diagnoses in mothers of US-born children were made more often before pregnancy (49.7% vs. 21.4%), or during pregnancy (16.6% vs. 13.9%), and less often after birth (23.7% vs. 41%). Custodians of US-born children were more often biological parents (71.9% vs. 43.2%) and less likely to be foster or nonrelated adoptive parents (10.4% vs. 55.1%). Of 676 foreign-born children with known place of birth, 65.5% were born in sub-Saharan Africa and 14.3% in Eastern Europe. The top countries of birth were Ethiopia, Ukraine, Uganda, Haiti, and Russia. CONCLUSIONS: The increasing number of foreign-born children with diagnosed HIV infection in the United States requires specific considerations for care and treatment. PMID- 29040170 TI - Kidney Transplantation and the Impact on Health-Related Quality of Life in Frail Patients. PMID- 29040168 TI - Failure of Isoflurane Cardiac Preconditioning in Obese Type 2 Diabetic Mice Involves Aberrant Regulation of MicroRNA-21, Endothelial Nitric-oxide Synthase, and Mitochondrial Complex I. AB - BACKGROUND: Diabetes impairs the cardioprotective effect of volatile anesthetics, yet the mechanisms are still murky. We examined the regulatory effect of isoflurane on microRNA-21, endothelial nitric-oxide synthase, and mitochondrial respiratory complex I in type 2 diabetic mice. METHODS: Myocardial ischemia/reperfusion injury was produced in obese type 2 diabetic (db/db) and C57BL/6 control mice ex vivo in the presence or absence of isoflurane administered before ischemia. Cardiac microRNA-21 was quantified by real-time quantitative reverse transcriptional-polymerase chain reaction. The dimers and monomers of endothelial nitric-oxide synthase were measured by Western blot analysis. Mitochondrial nicotinamide adenine dinucleotide fluorescence was determined in Langendorff-perfused hearts. RESULTS: Body weight and fasting blood glucose were greater in db/db than C57BL/6 mice. Isoflurane decreased left ventricular end-diastolic pressure from 35 +/- 8 mmHg in control to 23 +/- 9 mmHg (P = 0.019, n = 8 mice/group, mean +/- SD) and elevated +/-dP/dt 2 h after post ischemic reperfusion in C57BL/6 mice. These beneficial effects of isoflurane were lost in db/db mice. Isoflurane elevated microRNA-21 and the ratio of endothelial nitric-oxide synthase dimers/monomers and decreased mitochondrial nicotinamide adenine dinucleotide levels 5 min after ischemia in C57BL/6 but not db/db mice. MicroRNA-21 knockout blocked these favorable effects of isoflurane, whereas endothelial nitric-oxide synthase knockout had no effect on the expression of microRNA-21 but blocked the inhibitory effect of isoflurane preconditioning on nicotinamide adenine dinucleotide. CONCLUSIONS: Failure of isoflurane cardiac preconditioning in obese type 2 diabetic db/db mice is associated with aberrant regulation of microRNA-21, endothelial nitric-oxide synthase, and mitochondrial respiratory complex I. PMID- 29040171 TI - Biomechanical Comparison of Single-Bundle and Double-Bundle Posterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis. AB - BACKGROUND: Of the many issues regarding surgical techniques for posterior cruciate ligament (PCL) reconstruction, the choice between single-bundle (SB) and double-bundle (DB) reconstruction is one of the most debated. However, it is unclear which of the reconstruction techniques yields better outcomes in knees with a PCL injury. The purpose of this meta-analysis was to compare the benefits of SB and DB PCL reconstruction in terms of biomechanical outcomes. METHODS: The MEDLINE, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and SCOPUS electronic databases were searched for relevant articles comparing the outcomes of SB and DB PCL reconstruction that were published up until August 2016. Data searching, extraction, analysis, and quality assessment were performed on the basis of the Cochrane Collaboration guidelines. Biomechanical outcomes of both techniques were evaluated using various outcomes. Results involving continuous outcomes are presented as standardized mean differences (SMDs) with 95% confidence intervals (CIs). RESULTS: Ten biomechanical studies were included. There were no significant biomechanical differences between the groups with respect to external rotation, varus rotation, or coupled external rotation of the tibia with posterior drawer force at any knee flexion angle. However, posterior laxity measured using the posterior drawer test showed significantly better results after DB compared with SB reconstruction at low flexion (SMD = -0.90, 95% CI = -1.24 to -0.56, I = 0%), 30 degrees (SMD = 0.79, 95% CI = -1.28 to -0.31, I = 48%), 60 degrees (SMD = -0.87, 95% CI = -1.33 to -0.40, I = 33%), and 90 degrees (SMD = -0.73, 95% CI = -1.11 to -0.35, I = 27%). CONCLUSIONS: Anatomic DB reconstruction of the PCL is superior to anatomic SB reconstruction in terms of restoration of anteroposterior stability. However, it remains unclear which technique yields better improvement in terms of external rotation laxity, varus laxity, and coupled external rotation of the tibia with posterior drawer force. High-quality randomized controlled trials are required to confirm and expand on these results. PMID- 29040173 TI - Family caregivers. PMID- 29040174 TI - Reversal agents for oral anticoagulants. PMID- 29040172 TI - Cartilage Restoration of the Patellofemoral Joint. PMID- 29040175 TI - Adult asthma: Diagnosis and treatment. PMID- 29040176 TI - HPV awareness and vaccination rates in college-aged male athletes. AB - College-aged males are at high risk for human papillomavirus (HPV); however, vaccination rates remain low, suggesting minimal HPV knowledge. Therefore, an educational intervention was developed and implemented to determine if an increase in HPV knowledge, perceived HPV risk, intention and perceived self efficacy to obtain the vaccine, and vaccination rates were observed. PMID- 29040177 TI - Providing self-management education to patients with type 2 diabetes mellitus: Addressing basic nutrition and hypoglycemia. AB - NPs and other primary care providers will continue to encounter a growing population of patients with type 2 diabetes mellitus. Helping patients engage in self-care behaviors is essential to achieve blood glucose control and prevent diabetes-related complications. This article explores opportunities to provide education to patients with diabetes mellitus on the important self-care topics of nutrition and hypoglycemia during a primary care visit. PMID- 29040178 TI - Understanding employment contracts: What to know before you sign. AB - NPs are conscientious providers, but when it comes to their own careers, they may not be as careful to apply the same prevention strategies, monitoring, and hypervigilance that they use with their patients to avoid poor outcomes. This article identifies potential risks in employment contracts and offers suggestions for avoiding disputes. PMID- 29040179 TI - Finding joy in the workplace: We all have a role to play. PMID- 29040180 TI - Terminating a patient from care. PMID- 29040182 TI - Variable clinical presentations of babesiosis: A case series. AB - Human babesiosis continues to spread in multiple regions of the United States. It is transmitted by Ixodes species ticks, as are Lyme disease and anaplasmosis. Its variable clinical presentations, together with serologic detection limitations, require that a high index of clinical suspicion be present for prompt diagnosis. This article discusses case presentations showing the wide range of symptoms and presentations that are possible with babesiosis. PMID- 29040183 TI - The Prognostic Impact of the Pathological Response to Neoadjuvant Dose-Dense Therapy for Ovarian Carcinoma. AB - OBJECTIVE: The aim of this study was to assess the use of the pathological response to neoadjuvant chemotherapy (NAC) for predicting disease prognosis in patients with advanced ovarian cancer who received neoadjuvant dose-dense weekly paclitaxel and carboplatin (dd-TC) therapy. METHODS: We retrospectively investigated patients with advanced epithelial ovarian, tubal, or peritoneal carcinoma treated at our hospital from July 2004 to October 2014. Patients received dd-TC therapy as NAC followed by interval debulking surgery (IDS). Specimens resected during IDS were divided into 4 groups based on pathological response: grade 1, most tumor cells appeared to be viable; grade 2a, most tumor cells had disappeared, whereas the remaining tumor cells were vacuolated or degenerated; grade 2b, small numbers of viable tumor cells were observed; and grade 3, small aggregations of macrophages were seen. RESULTS: Sixty-eight patients were enrolled. The median number of NAC cycles was 3 (range, 2-6), and 51 patients (75.0%) achieved complete resection at IDS. Regarding pathological response, 7 (10.3%) patients were classified as grade 1, 11 (16.2%) as grade 2a, 46 (67.7%) as grade 2b, and 4 (5.9%) as grade 3. In univariate and multivariate analyses, grades 2b and 3 pathological responses were significant favorable prognostic factors for progression-free survival (P = 0.028; hazard ratio, 0.48; 95% confidence interval, 0.26-0.92). CONCLUSIONS: Although the pathological complete response rate to NAC was low in this study, both complete and good pathological responses to NAC might be favorable prognostic factors for PFS in patients with advanced ovarian cancer who receive dd-TC. PMID- 29040184 TI - Proceedings From the 1st International Conference 'Current Concepts and Controversies in Gynecologic and Urologic Oncology'. AB - The N.N. Alexandrov National Cancer Center of Belarus organized a collaborative international conference entitled 'Current Concepts and Controversies in Gynecologic and Urologic Oncology' with the International Gynecologic Cancer Society and the United States National Cancer Institute. International, regional, and national experts presented recent developments and local conditions in the treatment of gynecologic cancers. Findings were reviewed with the intent of optimizing the management of women with gynecologic cancers across the Commonwealth of Independent States region. At the end of the conference, a resolution was adopted to identify areas for improvement and future collaborations. PMID- 29040185 TI - Sarcopenia Is an Important Prognostic Factor in Patients With Cervical Cancer Undergoing Concurrent Chemoradiotherapy. AB - OBJECTIVE: This study aimed to investigate the correlation of sarcopenia findings with prognostic factors in patients with cervical cancer (CC) undergoing concurrent chemoradiotherapy (CCRT). METHODS: We retrospectively collected data on body composition and clinicopathological features from the medical records of 60 patients with CC who underwent CCRT and analyzed correlations between prognosis and changes in body composition as measured by computed tomography (skeletal muscle and iliopsoas muscle [IM]). Statistical analyses were performed using the Mann-Whitney U test. Progression-free survival (PFS) and overall survival (OS) were analyzed using the Kaplan-Meier method. Cox proportional hazard regression was used for univariate and multivariate analyses. RESULTS: The median follow-up for all patients who were alive at the last follow-up was 33.5 months (range, 1-104 months). The PFS and OS rates were worse for patients with at least 15.0% than for those with less than 15.0% loss of skeletal muscle and IM from baseline (P < 0.001 for both). Furthermore, multivariate analyses showed that at least 15.0% loss of IM was an independent prognostic factor for PFS and OS (P = 0.002 for both). CONCLUSIONS: Sarcopenia (>=15.0% loss of IM from baseline) was revealed to be an important prognostic factor in patients with CC undergoing CCRT. PMID- 29040186 TI - The Effect of Adenomyosis in Myometrial Invasion and Overall Survival in Endometrial Cancer. AB - AIM: The aim of this study was to evaluate whether adenomyosis had an effect on myometrial tumor invasion, stage of the disease, and survival in endometrial cancer. METHODS: Endometrial cancer patients encountered between 2007 and 2016 were identified from pathology records. Patients who underwent suboptimal surgical or medical treatment or with insufficient clinical or surgical data were excluded. Patients diagnosed as having concurrent adenomyosis constituted the study group. Control group patients were randomly selected in a paired design according to the tumor grades in the study group, and for each tumor grade, 4 times as many as patients were included. Tumor stage, histologic type and grade, myometrial invasion, lymphovascular space invasion, presence and location of the adenomyosis in myometrial wall, distance from endometrial line, tumor in adenomyosis, adjuvant treatment, and relapse were primary outcomes.Age, body mass index, medical comorbidities, and type of operation were also recorded. Univariate and multivariate Cox proportional hazards regression models were performed for overall survival. RESULTS: Of those 1242 endometrial cancer patients, 80 with concurrent adenomyosis were identified and compared with 320 patients without adenomyosis following a paired selection based on tumor grade. Higher rates of myometrial invasion, lymphovascular space invasion, tumor diameter, and adjuvant treatments were found in the nonadenomyosis group compared with adenomyosis group (P <= 0.001). In patients with adenomyosis, rates of early stage disease and overall survival were significantly higher compared with the control group (P = 0.001 and 0.01, respectively). CONCLUSIONS: Our results showed that adenomyosis is significantly associated with lower stage in endometrial cancer that may suggest a possible limiting effect on endometrial cancer spread. In addition, despite similar rates in disease-free survival and endometrial cancer-related death, overall survival rate was significantly higher in the presence of adenomyosis and might be considered as a good prognostic factor for endometrial cancer. PMID- 29040187 TI - Palliative Radiation Therapy for Recurrent Ovarian Cancer: Efficacy and Predictors of Clinical Response. AB - OBJECTIVE: This study aimed to report response rates and predictors of response to palliative radiotherapy (RT) for recurrent ovarian cancer. METHODS/MATERIALS: Database review identified 64 patients with symptomatic ovarian cancer recurrence who received a total of 76 courses of RT for 103 indications from March 2003 to August 2014. Radiotherapy indications were pain (44%), bleeding (32%), obstruction (15%), and other (9%). Responses were categorized as complete, partial, or none; all response (AR) was the sum of complete and partial responses. Response rates were compared using a chi test. Multivariate analysis was performed using logistic regression. Patients were followed up for symptom recurrence and death. RESULTS: Response rates were significantly higher for pain (AR, 87%) and bleeding (93%) than for obstruction (62%) and other (60%; P < 0.01). Patients treated for pain at nonbony sites had higher response rates (AR 96%) compared with those treated at bony sites (75%; P = 0.04). Patients with clear cell histology had the lowest response rates (AR, 60%) compared with those with serous (82%), endometrioid (95%), or other Mullerian histology (85%; P = 0.01). Platinum status at diagnosis or the time of RT was not associated with response, nor was tumor size or number of prior chemotherapy regimens. On multivariate analysis, histology, RT indication, and RT dose were independent predictors of response (all P < 0.01). CONCLUSIONS: Palliative RT provides relief of pain and bleeding in most patients with ovarian cancer recurrence. Patients with symptomatic obstruction, bony involvement, and clear cell histology may experience lower clinical response rates. PMID- 29040188 TI - Phagocytosis of Extracellular Vesicles Extruded From the Placenta by Ovarian Cancer Cells Inhibits Growth of the Cancer Cells. AB - OBJECTIVE: Ovarian cancer is a common gynecological cancer, and parity is negatively associated with the incidence of this disease. This negative association is hypothesized to be due in part to shifting the balance of estrogen and progesterone toward more progesterone and reduced ovulation during pregnancy. However, studies suggested that parity is also associated with estrogen independent gynecological cancers suggesting balance of hormones may not be the only protective factor. Extracellular vesicles (EVs) play an important role in cell-to-cell communication in physiological and pathological conditions. During pregnancy, large amounts of EVs are extruded from the placenta, and they seem to be involved in the remarkable adaptation of a woman's body to normal pregnancy. We hypothesized that EVs extruded from the placenta play a role in this protective effect. METHODS: Placental EVs were collected from first-trimester placentae, and cancer cell EVs were isolated from ovarian cancer cells. The EVs were exposed to ovarian cancer cells for 48 hours. The proliferation of cancer cells and the cell cycle were measured. In addition, phagocytosis of deported placental EVs by cancer cells was also measured. RESULTS: The proliferation of cancer cells was significantly reduced by treatment with placental EVs (P = 0.001, analysis of variance), but not EVs from monocytes (P = 0.195), compared with untreated cancer cells. Furthermore, placental EVs also prevented the proliferation of cancer cells induced by cancer cell-derived EVs (P = 0.001). This inhibition of proliferation of ovarian cancer cells was partially due to phagocytosis of placental EVs by cancer cells. Phagocytosis of placental EVs delayed progression through the cell cycle. Calreticulin, a phagocytic "eat me" signal carried by placental EVs significantly inhibited ovarian cancer growth (P = 0.001). CONCLUSIONS: Our data demonstrated that EVs extruded from the placenta prevented ovarian cancer cell growth by a mechanism that involved delaying progression of the cell cycle after phagocytosis of the EVs. PMID- 29040189 TI - The Patient and Observer Scar Assessment Scale to Evaluate the Cosmetic Outcomes of the Robotic Single-Site Hysterectomy in Endometrial Cancer. AB - OBJECTIVE: The objective of this study was to evaluate the cosmetic outcome of robotic single-site hysterectomy (RSSH) in early-stage endometrial cancer. METHODS: We prospectively collected patient demographics, operative times, complications, pathologic results, and length of stay on all patients who underwent RSSH for early-stage endometrial cancer. The Patient and Observer Scar Assessment Scale (POSAS) was used for the evaluation of the cosmetic outcome. RESULTS: Forty-five patients were included in our study from January 2012 to October 2015. The median age of patients was 63 years (range, 35-84 years), and the median body mass index was 26.5 kg/m (range, 18-39 kg/m). No laparoscopic/laparotomic conversion was registered. The median docking time, console time, and total operative time were 7 minutes (range, 4-14 minutes), 46 minutes (range, 20-100 minutes), and 90 minutes (range, 45-150 minutes), respectively. The median blood loss was 50 mL (range, 10-150 mL). Nine patients underwent pelvic lymphadenectomy, and the median number of pelvic lymph nodes was 13 (range, 10-32). The median time to discharge was 3 days (range, 2-6 days). No intraoperative complications occurred, whereas we did observe 1 early postoperative complication. The oncological outcome was directly comparable to the literature. Patients reported low pain scores and high satisfaction in terms of postoperative scarring. The POSAS scores confirmed excellent cosmetic outcome of RSSH. CONCLUSION: Robotic single-site hysterectomy provided an efficient option for gynecologic oncologic surgery. The POSAS revealed high objective and patient-evaluated outcome, and patients were highly satisfied with the overall outcome of the appearance of their scars. PMID- 29040190 TI - Novel Therapeutics for Ovarian Cancer: The 11th Biennial Rivkin Center Ovarian Cancer Research Symposium. AB - OBJECTIVE: The aim of this study was to summarize developments in novel therapeutics for ovarian cancer presented at the Ovarian Cancer Research Symposium held at the University of Washington. METHODS: A symposium of the leaders in ovarian cancer research was convened to present and discuss current advances and future directions in ovarian cancer research. RESULTS: The fourth session was held on September 13, 2016, and focused on Novel Therapeutics for Ovarian Cancer. The session featured a keynote presentation on Novel Immunotherapeutics for Ovarian Cancer from Nora Disis and an invited oral presentation from Scott Kaufmann that discussed poly (ADP-ribose) polymerase (PARP) Inhibitor Combinations for the Treatment of Ovarian Cancer. Eight additional oral presentations were selected from abstract submissions. Thirty eight abstracts were presented as posters highlighting recent advances in tumor immunology, PARP inhibition, chemoresistance, and novel targets for ovarian cancer therapy. CONCLUSIONS: PARP inhibitors, immunotherapies, and targeted therapies are but some of the expanding number of treatment options for ovarian cancer patients. Identification of the subsets of patients who will benefit most from these treatments remains the subject of intense preclinical and clinical research. Evidence presented at this symposium suggests that non-BRCA patients also benefit from PARP inhibitor therapies. Improved understanding of the mechanisms of chemoresistance and encouraging preclinical data presented for combinatorial approaches may soon yield new therapies for ovarian cancers that are resistant and refractory to standard treatments. PMID- 29040191 TI - Incidence Patterns and Survival of Gynecological Sarcoma in Germany: Analysis of Population-Based Cancer Registry Data on 1066 Women. AB - OBJECTIVE: Sarcomas of the female genital tract are rare tumors. They are described to be associated with a poor prognosis when compared with gynecogical carcinoma. The aim of this study was to report incidence patterns and survival rates for gynecological sarcoma (GS) in Germany. METHODS/MATERIALS: Clinical data and survival rates for patients with GS diagnosed in Germany between 2009 and 2013 were extracted from the German national center for population-based cancer registry data. Incidence patterns and 5-year relative survival rates were calculated. RESULTS: A total of 1066 GSs were included in our analysis during a 5 year time span. The uterus was the most common site, with 87.9% of all cases. The annual age-standardized incidence rate (old European standard) was 8.7 per 1 million women for all GSs. The median age at diagnosis was 59 years. The prognosis ranged according to site, stage, and subtype, for example, from a 5 year relative survival of 53.0% (uterine leiomyosarcoma) if confined to the pelvis, to a very good 5-year relative survival of 97.2% (endometrial stromal sarcoma). CONCLUSIONS: Despite the rareness of GS, the size of the data set allows for a differentiation of subtypes according to morphology and site of origin. Clinically relevant differences in incidence and prognosis between subgroups were observed. PMID- 29040192 TI - 2017 American Pancreatic Association Presidential Address: Revitalizing Pancreatitis Research. PMID- 29040194 TI - Fatty Pancreas: Should We Be Concerned? AB - The metabolic consequences of visceral fat deposition are well known, and the presence of intrapancreatic fat (IPF) has been recognized for decades. However, our knowledge about the distribution of fat in the pancreas and its clinical implications is in a nascent stage. Various terms have been proposed to describe IPF; for the purpose of this narrative review, we chose the general term fatty pancreas. Herein, we describe the radiologic, endoscopic, and histopathologic aspects of diagnosing fatty pancreas and provide an overview of the diseases associated with this condition. Our purpose is to highlight diagnostic challenges and identify specific clinical questions that would benefit from further study. As evident in this review, IPF is associated with various metabolic diseases, pancreatitis, pancreatic cancer, and precancer-yet establishing causality needs careful, further study. PMID- 29040195 TI - Grade Assignment by Ki-67 Proliferative Index, Mitotic Count, and Phosphohistone H3 Count in Surgically Resected Gastrointestinal and Pancreatic Neuroendocrine Tumors. AB - OBJECTIVES: The aim of this study was to evaluate the concordance in grade assignment for gastroenteropancreatic neuroendocrine tumors using mitotic count (MC), Ki-67 proliferative index (KPI), and phosphohistone H3 count (PHH3C). METHODS: Resected gastroenteropancreatic neuroendocrine tumors were graded based on MC, KPI, and PHH3C. Concordance was determined using a weighted kappa statistic. Median survival across each grade category was determined using Kaplan Meier methods. RESULTS: Of the 110 patients, the majority had gastrointestinal primaries and grade 1 or 2 tumors. Rates of discordance in grade assignment were 29% of cases for KPI versus MC (kappaW = 0.26), 32% for PHH3C versus MC (kappaW = 0.34), and 32% for PHH3C versus KPI (kappaW = 0.37). There was fair agreement between grading by KPI and MC. Relative to grade by KPI and MC, PHH3C tended to upgrade tumors. The proportion alive at 3 and 5 years was not significantly different for patients with grade 1 versus grade 2 tumors. CONCLUSIONS: The concordance between KPI and MC was fair. Phosphohistone H3 count tended to upgrade tumors using the cutoffs established by MC. Grade 1 and grade 2 tumors were associated with similar survival regardless of grading method. The overall relevance of the current cutoff values used in grading neuroendocrine tumors may need to be revisited. PMID- 29040196 TI - Carcinoid Syndrome Complicating a Pancreatic Neuroendocrine Tumor: A Case Report. AB - Neuroendocrine tumors (NETs) comprise a heterogeneous group of neoplasms. These tumors can produce a wide variety of hormones that can lead to syndromes of hormone excess, such as carcinoid syndrome. We present the case of a 47-year-old man who presented with right upper quadrant abdominal pain and emesis. He was found to have metastatic pancreatic NET and was treated with systemic chemotherapy. He subsequently developed dyspnea on exertion and was found to have severe right-sided heart disease secondary to elevated levels of serum serotonin. He was successfully treated with surgical tricuspid and pulmonic valve replacement. True carcinoid syndrome with pancreatic NETs is rare, but, as a treatable complication of the disease, is an important entity for which oncologists should be familiar. PMID- 29040198 TI - Pancreatitis in Patients With Pancreas Divisum. PMID- 29040199 TI - In Vitro Effect of Lysozyme on Albumin Deposition to Hydrogel Contact Lens Materials. AB - SIGNIFICANCE: Albumin deposition on contact lenses could be detrimental to contact lens (CL) wear because this may increase the risk of bacterial binding and reduce comfort. Lysozyme deposition on selected lens materials would reduce albumin deposition on lenses. PURPOSE: This study aims to determine if lysozyme deposition on CLs could act as a barrier against subsequent albumin adsorption, using an in vitro model. METHODS: Six hydrogel CL materials (etafilcon A, polymacon, nelfilcon A, omafilcon A, ocufilcon B, and nesofilcon A) were evaluated. Four CLs of each type were soaked in lysozyme solution for 16 hours at 37 degrees C. Lysozyme-coated lenses were then placed in vials with 1.5 mL of artificial tear solution containing I-labeled albumin for 16 hours at 37 degrees C with shaking. Four uncoated lenses of each type were used as controls. Lenses soaked in radiolabeled albumin were rinsed in a phosphate-buffered saline solution, and radioactive counts were measured directly on lenses using a gamma counter. Albumin uptake on lenses was measured using a calibration curve by plotting radioactive counts versus protein concentration. RESULTS: Results are reported as mean +/- SD. Lysozyme-coated etafilcon A lenses exhibited lower levels of deposited albumin than uncoated etafilcon A lenses (58 +/- 12 vs. 84 +/ 5 ng/lens; P < .05). There were no differences in albumin adsorption between control (uncoated) and lysozyme-coated polymacon (105 +/- 10 vs. 110 +/- 34 ng/lens), nelfilcon A (51 +/- 7 vs. 42 +/- 20 ng/lens), omafilcon A (90 +/- 20 vs. 80 +/- 38 ng/lens), ocufilcon B (87 +/- 20 vs. 115 +/- 50 ng/lens), and nesofilcon A (170 +/- 29 vs. 161 +/- 10 ng/lens) lens materials (P > .05). Uncoated nesofilcon A lenses deposited the highest amount of albumin when compared with other uncoated lenses (P < .05). CONCLUSIONS: This study demonstrates that lysozyme deposited onto etafilcon A resists the deposition of albumin, which may potentially be beneficial to CL wearers. PMID- 29040200 TI - Geospatial mapping can be used to identify geographic areas and social factors associated with intentional injury as targets for prevention efforts distinct to a given community. AB - BACKGROUND: Geographic information systems (GIS) have proven effective in studying intentional injury in various communities; however, GIS is not implemented widely for use by Level I trauma centers in understanding patient populations. Our study of intentional injury combines the capabilities of GIS with a Level I trauma center registry to determine the spatial distribution of victims and correlated socioeconomic factors. METHODS: One thousand ninety-nine of 3,109 total incidents of intentional trauma in the trauma registry from 2005 to 2015 had sufficient street address information to be mapped in GIS. Comparison of these data, coupled with demographic data at the block group level, determined if any clustering or spatial patterns existed. Geographic information systems delivered these comparisons using several spatial statistics including kernel density, ordinary least squares test, and Moran's index. RESULTS: Kernel density analysis identified four major areas with significant clustering of incidents. The Moran's I value was 0.0318. Clustering exhibited a positive z-score and significant p value (p < 0.01). Examination of socioeconomic factors by spatial correlation with the distribution of intentional injury incidents identified three significant factors: unemployment, single-parent households, and lack of a high school degree. Tested factors did not exhibit substantial redundancy (variance inflation factor < 7.5). Nonsignificant tested factors included race, proximity to liquor stores and bars, median household income, per capita income, rate with public assistance, and population density. CONCLUSION: Spatial representation of trauma registry data using GIS effectively identifies high-risk areas for intentional injury. Analysis of local socioeconomic data identifies factors unique to those high-risk areas in the observed community. Implications of this study may include the routine use of GIS by Level I trauma centers in assessing intentional injury in a given community, the use of that data to guide the development of trauma prevention, and the assessment of other mechanisms of trauma using GIS. LEVEL OF EVIDENCE: Epidemiological, level IV. PMID- 29040201 TI - Don't call me crazy! Delirium occurs outside of the intensive care unit. AB - INTRODUCTION: Delirium has been well studied among patients in the intensive care unit (ICU); however, data beyond the ICU is limited. The purpose of this study is to prospectively evaluate the incidence and associated risk factors for delirium in noncritical care areas (NCCA). METHODS: After institutional review board approval, a prospective cohort study was conducted at our urban Level I Trauma Center from December 2015 to February 2016. All patients admitted to the designated study area by a trauma surgeon were included. The Confusion Assessment Method (CAM) was administered every 12 hours until discharge. Delirious patients (CAM+) were administered the CAM-S to quantify the severity of delirium. Demographics, laboratory data, and inpatient medication lists were analyzed. RESULTS: Of 148 participants, 12 (8%) were CAM+ and 136 (92%) were CAM-. The average CAM-S of CAM+ patients was 7 +/- 3. Included patients were aged 52 +/- 20 years and 45% were men. Of patients 65 years or older, 9 (21%) were CAM+. Medications associated with delirium were: albuterol (p = 0.01), atorvastatin (p = 0.01), duloxetine (p = 0.04), sertraline (p = 0.04), folic acid (p = 0.01), thiamine (p = 0.01), vitamin D (p < 0.001), haloperidol (p = 0.04), metoprolol (p = 0.02), and vancomycin (p = 0.02). Abnormal laboratory values associated with delirium included: Albumin (p = 0.03; odds ratio [OR], 7.94, 95% confidence interval [CI], 1.1-63.20), Calcium (p = 0.01; OR, 4.95; 95% CI, 1.5-16.7), Sodium (p = 0.04; OR, 3.91; 95% CI, 1.13-13.5), hematocrit (p = 0.04), and mean corpuscular hemoglobin concentration (p < 0.05; OR, 5.29; 95% CI, 1.19-23.46). CONCLUSIONS: Our study demonstrated an 8% incidence of delirium overall in NCCA, increasing to 21% in patients 65 years or older. Many risk factors identified among NCCA patients are consistent with the ICU literature; however, our CAM+ patients had additional risk factors which have not been previously associated with the development of delirium. Screening of NCCA patients for delirium should be considered. LEVEL OF EVIDENCE: Prognostic and Epidemological, level IV. PMID- 29040202 TI - Re-examination of a Battlefield Trauma Golden Hour Policy. AB - BACKGROUND: Most combat casualties who die, do so in the prehospital setting. Efforts directed toward alleviating prehospital combat trauma death, known as killed in action (KIA) mortality, have the greatest opportunity for eliminating preventable death. METHODS: 4,542 military casualties injured in Afghanistan from September 11, 2001 to March 31, 2014 were included in this retrospective analysis to evaluate proposed explanations for observed KIA reduction following a mandate by Secretary of Defense Robert M. Gates that transport of injured service members occur within 60 minutes. Using inverse probability weighting to account for selection bias, data were analyzed using multivariable logistic regression and simulation analysis to estimate the effects of 1) gradual improvement, 2) damage control resuscitation, 3) harm from inadequate resources, 4) change in wound pattern, and 5) transport time on KIA mortality. RESULTS: The effect of gradual improvement measured as a time trend was not significant (AOR=0.99; 95%CI 0.94 1.03; p=0.58). For casualties with military injury severity score >= 25, the odds of KIA mortality were 83% lower for casualties who needed and received prehospital blood transfusion (AOR=0.17; 95%CI 0.06-0.51; p=0.002); 33% lower for casualties receiving initial treatment by forward surgical teams (AOR=0.67; 95%CI 0.58-0.78; p<0.001); 70%, 74%, and 87% lower for casualties with dominant injuries to head (AOR=0.30; 95%CI 0.23-0.38; p<0.001), abdomen (AOR=0.26, 95%CI 0.19-0.36; p<0.001) and extremities (AOR=0.13; 95%CI 0.09-0.17; p<0.001); 35% lower for casualties categorized with blunt injuries (AOR=0.65; 95%CI 0.46-0.92; p=0.01); and 39% lower for casualties transported within one hour (AOR=0.61; 95%CI 0.51-0.74; p<0.001). Results of simulations in which transport times had not changed after the mandate indicate that KIA mortality would have been 1.4% higher than observed, equating to 135 more KIA deaths (95%CI 105-164). CONCLUSIONS: Reduction in KIA mortality is associated with early treatment capabilities, blunt mechanism, select body locations of injury, and rapid transport. LEVEL OF EVIDENCE: Retrospective/Case-control, Level III. PMID- 29040203 TI - The temporal response and mechanism of action of tranexamic acid in endothelial glycocalyx degradation. AB - BACKGROUND: The endothelial glycocalyx (GCX) plays an important role in vascular barrier function. Damage to the GCX occurs due to a variety of causes including hypoxia, ischemia-reperfusion, stress-related sympathoadrenal activation, and inflammation. Tranexamic acid (TXA) may prevent GCX degradation. The therapeutic window for TXA administration and the mechanism of action has been under review. Membrane-anchored proteases (sheddases) are key components in endothelial cell biology including the regulation of vascular permeability. The effect of TXA administration on stress-related GCX damage, and the role of sheddases in this process was studied in a cell-based model. METHODS: Confluent human umbilical vein endothelial cells (HUVEC) were exposed to hydrogen peroxide and/or epinephrine (EPI) to stimulate postshock reperfusion. TXA was added at various times after hydrogen peroxide (H2O2) and/or EPI exposure. GCX degradation was indexed by syndecan-1 and hyaluronic acid release. Activation of endothelial sheddases was indexed by A Disintegrin and Metalloproteinase-17 and matrix metalloproteinase-9 activity in culture supernatants. RESULTS: Exposure of HUVEC to either/both EPI and H2O2 resulted in a cellular stress and GCX disruption demonstrated by increased levels of syndecan-1 shedding, hyaluronic acid release, tumor necrosis factor-alpha release. Shedding of these GCX components was associated with increased activity of both A Disintegrin and Metalloproteinase-17 and matrix metalloproteinase. Disruption of the GCX was further demonstrated via fluorescent imaging, which demonstrated disruption after exposure to either/both H2O2 and EPI. Early administration of either TXA or doxycycline resulted in preservation of the GCX. Late administration of TXA had no effect, whereas doxycycline had some residual protective effect. CONCLUSION: Tranexamic acid as a serine protease inhibitor prevented GCX degradation via inhibition of endothelial sheddase activation. This effect was not apparent when TXA was administered greater than 60 minutes after "simulated" reperfusion. Our study supports the clinical practice of early TXA administration in the severely injured patient. PMID- 29040204 TI - Perioperative glycemic control and postoperative complications in patients undergoing emergency general surgery: What is the role of Plasma Hemoglobin A1c? AB - BACKGROUND: Plasma hemoglobin A1c (HbA1c) reflects quality of glucose control in diabetic patients. Literature reports that patients undergoing surgery with an elevated HbA1c level are associated with increased postoperative morbidity and mortality. The aim of our study was to evaluate the impact of HbA1c level on outcomes after emergency general surgery (EGS). METHODS: We performed a 3-year analysis of our prospectively maintained EGS database. Patients who had HbA1c levels measured within 3 months before surgery were included. Patients were divided into two groups (HbA1c < 6 and HbA1c >= 6). Our primary outcome measures included in-hospital complications (major and minor complications), hospital and intensive care unit length of stay, and mortality. Secondary outcomes measures were 30-day complications, readmissions, and mortality. Multivariate and linear regressions were performed. RESULTS: Of the 402 study patients, mean age was 61 +/- 12 years, 53% were females, and 63.8% were diabetics. Overall, 49% had an HbA1c >= 6%; the mortality rate was 6%. Those with hypertension, history of coronary artery disease, and body mass index of 30 kg/m or greater were more likely to have HbA1c of 6.0% or greater. 7.9% patients experienced major complications. Patients with HbA1c of 6% or greater had a higher complication rate (36% vs 11%, p < 0.001) than those with HbA1c less than 6%. However there was no difference in mortality between two groups (p = 0.09). After controlling for confounders, HbA1c >= 6.0% (odds ratio [OR], 2.9; p < 0.01) and a postoperative random blood sugar (RBS) of 200 mg/dL or greater (OR, 2.3; p < 0.01) were independent predictors of major complications. Patients with both HbA1c of 6.0% or greater and postoperative RBS of 200 or greater had higher odds (OR, 4.2; p < 0.01) of developing major complication. After adjusting for confounders, a higher HbA1c was independently correlated with a higher postoperative RBS (b = 0.494, [19.7-28.4], p = 0.02), but there was no correlation with the preoperative RBS. CONCLUSION: Patients with HbA1c of 6.0% or greater and a postoperative RBS of 200 mg/dL or greater have a four times higher risk of developing major complications after EGS. A preoperative HbA1c can stratify patients prone to develop postoperative hyperglycemia, regardless of their preoperative RBS. LEVEL OF EVIDENCE: Prognostic, level III. PMID- 29040205 TI - Spleen-preserving distal pancreatectomy in trauma. AB - BACKGROUND: Traumatic injuries to the distal pancreas are infrequent. Universally accepted recommendations about the need for routine splenectomy with distal pancreatectomy do not exist. The aims of this study were to compare outcomes after distal pancreatectomy and splenectomy versus spleen-preserving distal pancreatectomy, and to define the appropriate patient population for splenic preservation. METHODS: All patients who underwent distal pancreatectomy (January 1, 2007, to December 31, 2014) were identified from the National Trauma Data Bank. Patients with concomitant splenic injury and those who underwent partial splenectomy were excluded. Demographics, clinical data, procedures, and outcomes were collected. Study groups were defined by surgical procedure: distal pancreatectomy and splenectomy versus spleen-preserving distal pancreatectomy. Baseline characteristics between groups were compared with univariate analysis. Multivariate analysis was performed with logistic and linear regression to examine differences in outcomes. RESULTS: Over the 8-year study period, 2,223 patients underwent distal pancreatectomy. After excluding 1,381 patients with concomitant splenic injury (62%) and 8 (<1%) who underwent partial splenectomy, 834 (38%) remained for analysis. Median age was 23 years (range, 0-86 years) and 634 (77%) were male. Mechanism of injury was penetrating in 413 (50%) patients. Of the 834 patients, 469 (56%) underwent splenectomy and 365 (44%) patients did not. Compared with patients who underwent distal pancreatectomy and splenectomy, those who underwent spleen-preserving distal pancreatectomy were younger (p < 0.001), more likely to have sustained blunt trauma (p < 0.001), and had a lower Injury Severity Score (p < 0.001). On multivariate analysis, only hospital length of stay (LOS) was significantly shorter among patients undergoing spleen preserving distal pancreatectomy (p = 0.017). Complications, mortality, and intensive care unit LOS were not significantly different. CONCLUSION: In young patients after blunt trauma who are not severely injured, a spleen-preserving distal pancreatectomy should be considered to allow for conservation of splenic function and a shorter hospital LOS. In all other patients, the surgeon should not hesitate to remove the spleen with the distal pancreas. LEVEL OF EVIDENCE: Therapy, level IV. PMID- 29040206 TI - The life-saving effect of "adenosine, lidocaine, and magnesium" cocktail during hypovolemic shock: One stone, three birds? PMID- 29040207 TI - Trauma pneumonectomy for major thoracic bleeding: When should we consider about it? PMID- 29040208 TI - An update on gain-of-function mutations in primary immunodeficiency diseases. AB - PURPOSE OF REVIEW: Most primary immunodeficiencies described since 1952 were associated with loss-of-function defects. With the advent and popularization of unbiased next-generation sequencing diagnostic approaches followed by functional validation techniques, many gain-of-function mutations leading to immunodeficiency have also been identified. This review highlights the updates on pathophysiology mechanisms and new therapeutic approaches involving primary immunodeficiencies because of gain-of-function mutations. RECENT FINDINGS: The more recent developments related to gain-of-function primary immunodeficiencies mostly involving increased infection susceptibility but also immune dysregulation and autoimmunity, were reviewed. Updates regarding pathophysiology mechanisms, different mutation types, clinical features, laboratory markers, current and potential new treatments on patients with caspase recruitment domain family member 11, signal transducer and activator of transcription 1, signal transducer and activator of transcription 3, phosphatidylinositol-4,5-biphosphate 3-kinase catalytic 110, phosphatidylinositol-4,5-biphosphate 3-kinase regulatory subunit 1, chemokine C-X-C motif receptor 4, sterile alpha motif domain containing 9 like, and nuclear factor kappa-B subunit 2 gain-of-function mutations are reviewed for each disease. SUMMARY: With the identification of gain-of-function mutations as a cause of immunodeficiency, new genetic pathophysiology mechanisms unveiled and new-targeted therapeutic approaches can be explored as potential rescue treatments for these diseases. PMID- 29040209 TI - Inherited and acquired clinical phenotypes associated with neuroendocrine tumors. AB - PURPOSE OF REVIEW: Overview of neuroendocrine neoplasms in the context of their associations with primary and secondary immunodeficiency states. RECENT FINDINGS: Malignancies of neuroendocrine origin are well known to be associated with hereditary syndromes, including multiple endocrine neoplasia type 1, von Hippel Lindau syndrome, neurofibromatosis type 1, and tuberous sclerosis. This review includes the X-linked form of hyper-IgM syndrome (XHIGM), due to mutations in the CD40Ligand gene (CD40LG), as an additional inherited disorder with susceptibility to such malignancies, and discusses neuroendocrine tumors (NETs) arising in other immunocompromised states. Of all primary immune deficiency diseases, NETs appear to be unique to XHIGM patients. Outcomes for XHIGM patients with NETs is poor, and the mechanism behind this association remains unclear. In secondary immune deficiency states, NET occurrences were primarily in patients with HIV or AIDS, the autoimmune disease systemic lupus erythematosus and solid organ transplant recipients. Gastroenteropancreatic NETs were most frequent in XHIGM patients, whereas nongastroenteropancreatic-NETs, like Merkel cell carcinoma and small-cell lung carcinoma, affected HIV/AIDS patients. Possible mechanisms as to the nature of these associations are discussed, including chronic infections and inflammation, and CD40-CD40L interactions. Many questions remain, and further studies are needed to clarify the predisposition of patients with XHIGM to the development of NETs. Given that many of these patients present late in their disease state and have poor outcomes, it is imperative to keep a high index of suspicion at the advent of early signs and symptoms. Regular monitoring with laboratory or imaging studies, including tumor markers, may be warranted, for which further studies are needed. SUMMARY: Of all primary immunodeficiency diseases, NETs appear to be unique to XHIGM, and the mechanism behind this association remains unclear. Outcome for XHIGM patients with NETs is poor, and it is imperative to keep a high index of suspicion at the advent of early signs and symptoms. PMID- 29040210 TI - Anticholinergics for asthma: a long history. AB - PURPOSE OF REVIEW: To provide a fast overview about the introduction and development of anticholinergic drugs in Western medicine to their current indications particularly in asthma. RECENT FINDINGS: Although short-acting muscarinic antagonists have been positioned in the last 15 years for the treatment of adults and children with moderate-to-severe acute asthma in the emergency setting (reducing the risk of hospital admissions and improving lung function), a growing body of evidence has recently emerged that positions the long-acting muscarinic anticholinergic tiotropium bromide as add-on therapy to at least inhaled corticosteroids (ICS) maintenance therapy in adults, adolescents, and children with symptomatic asthma. Thus, the addition of tiotropium bromide to ICS alone or ICS and another controller was associated with significant improvements in spirometric measures and asthma control, and a significantly decrease in the rate of asthma exacerbations. SUMMARY: Short-acting muscarinic antagonists and tiotropium bromide have a well established role in the treatment of different phases of asthma. Further data are needed to provide more evidence on other selective long-acting muscarinic antagonists in addition to tiotropium as potential treatment options. PMID- 29040211 TI - Altered Macular Microvasculature in Mild Cognitive Impairment and Alzheimer Disease. AB - BACKGROUND: The goal of the present study was to analyze the macular microvacular network in mild cognitive impirment (MCI) and Alzheimer disease (AD). METHODS: Twelve patients with AD and 19 patients with MCI were recruited together with 21 cognitively normal controls with a similar range of ages. Optical coherence tomography angiography was used to image the retinal microvascular network at the macular region, including retinal vascular network (RVN), superficial vascular plexus (SVP), and deep vascular plexus (DVP). Fractal analysis (box counting, Dbox) representing the microvascular density was performed in different annular zones and quadrantal sectors. The macular ganglion cell-inner plexiform layer (GC IPL) thickness was measured using Zeiss OCT. The relationship between the retinal microvasculature and clinical manifestations was analyzed. RESULTS: Patients with AD had lower densities of RVN, SVP, and DVP in the annulus, from 0.6 to 2.5 mm in diameter (P < 0.05) in comparison with controls. Patients with MCI had lower density of DVP in the superior nasal quadrant (P < 0.05) than that of the controls. There were no significant differences of GC-IPL thickness among groups (P > 0.05). There was a trend of vascular density loss from control to MCI then AD (P < 0.05). Retinal microvascular density of DVP was correlated with GC-IPL thickness (P < 0.05) in patients with AD, but not in patients with MCI and controls. CONCLUSIONS: Patients with AD had less density of retinal microvascular networks than controls. Our findings suggest the presence of retinal microvascular dysfunction in AD. PMID- 29040212 TI - Vasopressor Cumulative Dose Requirement and Risk of Early Death During Septic Shock: An Analysis From The EPISS Cohort. AB - Septic shock is the primary cause of death in intensive care units, with about 20% of patients dying in the first 3 days. To design future trials focused on early mortality, we require knowledge of early indicators that can detect patients at high risk of early death from refractory septic shock. The aim of this study was to assess whether the cumulative dose of vasopressors (CDV), calculated as the cumulative dose of epinephrine + norepinephrine, is a predictor of early death (within 72 h) attributable to refractory septic shock (EDASS). This substudy of the EPISS trial was based on 370 patients admitted to a French ICU for septic shock between 2009 and 2011. The area under the receiving operating characteristic curve was calculated for the CDV at 6, 12, 24, 36, and 48 h after vasopressor initiation, and a strategy to predict the risk of EDASS was built based on selected times and thresholds. Among the 370 patients included, 51 (14%) died within the first 72 h with 40 (11%) EDASS. A strategy in two steps (CDV >= 800 MUg/kg at 6 h and/or CDV >= 2,600 MUg/kg at 24 h) was able to predict EDASS with sensitivity of 45%, specificity 97%, positive predictive value 78% and negative predictive value 94%. Overall, our results confirm that early death directly attributable to septic shock could be effectively predicted by the CDV in the first hours of treatment. These results will help to select patients eligible for innovative therapies aimed at improving early mortality in septic shock. PMID- 29040213 TI - Importance of the Complement Alternative Pathway in Serum Chemotactic Activity During Sepsis. AB - Serum chemotactic activity is important in regulating neutrophil migration. The ability of neutrophils to migrate to infectious site is crucial for host effective pathogen control, but unregulated neutrophil activation can also cause tissue damage. During bacterial sepsis, the complement alternative pathway (AP) is massively activated in blood and tissues and reportedly contributes to sepsis pathogenesis. Complement factor B (FB) is an essential component of the AP activation. However, the impact of FB/AP activation on blood chemotactic activity during bacterial infection is unclear. In this study, we found that sera of septic mice following cecal ligation and puncture (CLP) had much higher chemotactic activities on neutrophils than those of sham animals. Compared with wild-type (WT) mice, FB mice had significantly attenuated serum chemotactic activity, under both nonseptic and septic conditions. Moreover, sera with the activated AP by zymosan and cobra venom factor (CVF) in vitro induced a significant increase in neutrophil migration compared with sera without the AP activation. Complement activation generates complement cleavage fragment such as Ba, C3a, and C5a. To delineate the contribution of these downstream effectors, we incubated AP-active sera (AP activated by zymosan/CVF) or sera from sham and septic mice with anti-C5a or mAb1379 (anti-Ba) neutralizing antibody. We found that anti-C5a, but not mAb1379, markedly attenuated the neutrophil chemotactic effect of the AP-activated sera and that of septic sera. Taking together, these data suggest that the complement AP activation during bacterial sepsis plays a pivotal role in promoting blood chemotactic activity through a C5a-dependent mechanism. PMID- 29040214 TI - Untreated Relative Hypotension Measured as Perfusion Pressure Deficit During Management of Shock and New-Onset Acute Kidney Injury-A Literature Review. AB - Maintaining an optimal blood pressure (BP) during shock is a fundamental tenet of critical care. Optimal BP targets may be different for different patients. In current practice, too often, uniform BP targets are pursued which may result in inadvertently accepting a degree of untreated relative hypotension, i.e., the deficit between patients' usual premorbid basal BP and the achieved BP, during vasopressor support. Relative hypotension is a common but an under-recognized and an under-treated sign among patients with potential shock state. From a physiological perspective, any relative reduction in the net perfusion pressure across an organ (e.g., renal) vasculature has a potential to overwhelm autoregulatory mechanisms, which are already under stress during shock. Such perfusion pressure deficit may consequently impact organs' ability to function or recover from an injured state. This review discusses such pathophysiologic mechanisms in detail with a particular focus on the risk of new-onset acute kidney injury (AKI). To review current literature, databases of Medline, Embase, and Google scholar were searched to retrieve articles that either adjusted BP targets based on patients' premorbid BP levels or considered relative hypotension as an exposure endpoint and assessed its association with clinical outcomes among acutely ill patients. There were no randomized controlled trials. Only seven studies could be identified and these were reviewed in detail. These studies indicated a significant association between the degree of relative hypotension that was inadvertently accepted in real-world practice and new-onset organ dysfunction or subsequent AKI. However, this is not a high-quality evidence. Therefore, well-designed randomized controlled trials are needed to evaluate whether adoption of individualized BP targets, which are initially guided by patient's premorbid basal BP and then tailored according to clinical response, is superior to conventional BP targets for vasopressor therapy, particularly among patients with vasodilatory shock states. PMID- 29040215 TI - Role of Receptor for Advanced Glycation End Products in Regulating Lung Fluid Balance in Lipopolysaccharide-induced Acute Lung Injury and Infection-Related Acute Respiratory Distress Syndrome. AB - Receptor for advanced glycation end products (RAGE) is implicated in inflammatory responses in acute lung injury (ALI)/acute respiratory distress syndrome (ARDS), but its role in pulmonary edema formation remains unclear, especially in infection-related ARDS mainly caused by pneumonia or sepsis. In this study, we investigated the role of RAGE in alveolar fluid regulation by using RAGE gene knockout (RAGE) mice in a murine ALI model induced by lipopolysaccharide (LPS), and by comparing soluble RAGE (sRAGE) levels in serum and bronchial alveolar lavage fluid between ARDS patients and control subjects. We found that RAGE knockout significantly improved alveolar fluid clearance and reduced pulmonary vascular albumin leakage upon LPS challenge. Furthermore, LPS-induced substantial decrease in lung expression of sodium-potassium ATPase (Na,K-ATPase), epithelial sodium channel, and zonula occluden-1 (ZO-1) were fully or partially restored by the deletion of RAGE. In addition to this, LPS-induced lung leukocyte infiltration and inflammatory cytokine and chemokine release were all attenuated in RAGE mice as compared to wide-type mice. In infection-related ARDS patients, both serum and bronchial alveolar lavage fluid levels of the sRAGE were much higher than those in control subjects, and they were positively correlated with pulmonary vascular permeability and levels of interleukin (IL)-6, IL-8, and macrophage inflammatory protein (MIP)-2. Taken together, we provided the first direct evidence for the essential role of RAGE in regulating lung fluid balance in infection-related ARDS/ALI. The underlying mechanisms may involve the downregulation of both ion-channel and tight junction proteins mediated by RAGE signaling in bacterial endotoxin-induced lung injury. PMID- 29040217 TI - Shining the light on genitourinary syndrome of menopause in survivors of breast cancer. PMID- 29040216 TI - Depressive symptoms screening in postmenopausal women with symptomatic pelvic organ prolapse. AB - OBJECTIVE: This study aimed to investigate the prevalence of depressive symptoms in postmenopausal women with symptomatic pelvic organ prolapse (POP) and to identify the factors associated with depressive symptoms in this population. METHODS: We conducted a cross-sectional study involving postmenopausal women with symptomatic POP who visited the Center of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing, between July 2016 and March 2017. We collected data pertaining to participants' sociodemographic characteristics and medical histories. The participants enrolled in the study were evaluated by POP quantification (POP-Q), the Pelvic Floor Distress Inventory-20 (PFDI-20), and the Pelvic Floor Impact Questionnaire-7 (PFIQ-7), and the severity of their depressive symptoms was assessed by the Patient Health Questionnaire-9 (participants with scores >=10 were considered "positive" for depressive symptoms, whereas participants with scores <10 were considered "negative" for depressive symptoms). We performed independent-sample t tests, Mann-Whitney U test, chi-square tests, Fisher's exact test, and logistic regression to analyze our data. RESULTS: In all, 177 participants completed the entire study and were thus included in the analysis. Overall, 32.8% of participants were found to have depressive symptoms. We noted no differences in sociodemographic characteristics or POP-Q stage between participants with and without depressive symptoms (P > 0.05). However, depressive symptoms were associated with higher PFIQ-7 and PFDI 20 subscale scores (P < 0.001). PFIQ-7 subscale Urinary Impact Questionnaire (UIQ)-7 (odds ratio [OR] 1.038, 95% confidence interval [CI] 1.010-1.066, P = 0.008), PFDI-20 subscale UDI-6 (OR 1.025, 95% CI 1.007-1.044, P = 0.008), and Colorectal-Anal Distress Inventory-8 (OR 1.025, 95% CI 1.005-1.046, P = 0.016), which represented the impact on quality of life from lower urinary tract symptoms, the distress caused by lower urinary tract symptom and bowel dysfunction, respectively, were the risk factors that were independently associated with depressive symptoms after multiple logistic regression analysis. CONCLUSIONS: Depressive symptoms were present in approximately one-third of postmenopausal women with symptomatic POP. Depressive symptoms are not associated with POP stage, but are associated with the lower urinary tract symptom and bowel dysfunction scores attributable to prolapse. Clinicians should be mindful of whether patients with symptomatic POP have depressive symptoms and should address POP and any concomitant depressive symptoms as early as possible. PMID- 29040218 TI - Perimenopausal depression and early menopause: cause or consequence? PMID- 29040219 TI - Effect of 2 years of endurance and high-impact training on preventing osteoporosis in postmenopausal women: randomized clinical trial. AB - OBJECTIVE: The aim of the study was to analyze the effects of endurance and high impact training oriented toward preventing osteoporosis in postmenopausal women with calcium and vitamin D supplementation. METHODS: This study was a randomized clinical trial. Thirty-six postmenopausal women were randomized to the control and experimental groups. Thirty-four women completed the 2-year interventions. The control group training involved walking at an intense pace. The experimental group conducted high-impact training specifically oriented to prevent osteoporosis. Dual-energy x-ray absorptiometry was used to estimate the T-scores of the lumbar spine and femoral neck. RESULTS: The fast-walking group showed constant T-scores in the femoral neck and improved T-scores in the lumbar spine. High-impact exercises produced improvements in both anatomical levels. Significant differences were found in the femoral neck (DeltaControl = -0.04, DeltaExperimental = 0.28). The differences were not significant in the lumbar spine (DeltaControl = 0.27, DeltaExperimental = 0.47). Cohen's effect size (d = 0.52) suggested a medium practical significance of the trial. The power was 51%. CONCLUSIONS: Calcium plus vitamin D supplementation combined with specifically oriented exercises had a higher impact in the femoral neck than walking at an intense pace. As there were no differences at the lumbar spine level, the results were, however, inconclusive concerning which type of exercise was the most convenient. Importantly, the fact that the T-scores did not decrease after 2 years supports the belief that both proposed interventions can be conveniently used to prevent osteoporosis in postmenopausal women. A trial with a larger sample size would provide consistency to the findings and is warranted given the possible effects and benefits. PMID- 29040220 TI - Vaginal estrogen in the treatment of genitourinary syndrome of menopause and risk of endometrial cancer: an assessment of recent studies provides reassurance. PMID- 29040221 TI - Thermoeffector Responses at a Fixed Rate of Heat Production in Heart Failure Patients. AB - PURPOSE: Heart failure (HF) patients seem to exhibit altered thermoregulatory responses during exercise in the heat. However, the extent to which these responses are altered due to physiological impairments independently of biophysical factors associated with differences in metabolic heat production (Hprod), evaporative heat balance requirements (Ereq), and/or body size is presently unclear. Therefore, we examined thermoregulatory responses in 10 HF patients and 10 age-matched controls (CON) similar in body size during exercise at a fixed rate of Hprod and therefore Ereq in a 30 degrees C environment. METHODS: Rectal temperature, local sweat rate, and cutaneous vascular conductance were measured throughout 60 min of cycle ergometry. Whole-body sweat rate was estimated from pre-post nude body weight corrected for fluid intake. RESULTS: Despite exercising at the same rate of Hprod (HF, 338 +/- 43 W; CON, 323 +/- 31 W; P = 0.25), the rise in rectal temperature was greater (P < 0.01) in HF (0.81 degrees C +/- 0.16 degrees C) than in CON (0.49 degrees C +/- 0.27 degrees C). In keeping with a similar Ereq (HF, 285 +/- 40 W; CON, 274 +/- 28 W; P = 0.35), no differences in whole-body sweat rate (HF, 0.45 +/- 0.11 L.h; CON, 0.41 +/- 0.07 L.h; P = 0.38) or local sweat rate (HF, 0.96 +/- 0.17 mg.cm.min; CON, 0.79 +/- 0.15 mg.cm.min; P = 0.50) were observed between groups. However, the rise in cutaneous vascular conductance was lower in HF than in CON (HF, 0.83 +/- 0.42 au.mm Hg; CON, 2.10 +/- 0.79 au.mm Hg; P < 0.01). In addition, the cumulative body heat storage estimated from partitional calorimetry was similar between groups (HF, 154 +/- 106 kJ; CON, 196 +/- 174 kJ; P = 0.44). CONCLUSIONS: Collectively, these findings demonstrate that HF patients exhibit a blunted skin blood flow response, but no differences in sweating. Given that HF patients had similar body heat storage to that of CON at the same Hprod, their greater rise in core temperature can be attributed to a less uniform internal distribution of heat between the body core and periphery. PMID- 29040222 TI - Neurovascular Response during Exercise and Mental Stress in Anabolic Steroid Users. AB - PURPOSE: Increased resting muscle sympathetic nerve activity (MSNA) and lower forearm blood flow (FBF) were observed in young men who use anabolic androgenic steroids (AAS). However, the response of MSNA and FBF in AAS users triggered by muscle mechanoreflex and central command has never been tested. In addition, we evaluated the blood pressure (BP) and heart rate (HR) responses during these maneuvers. METHODS: Nineteen AAS users (AASU) 31 +/- 6 yr of age and 18 AAS nonusers (AASNU) 29 +/- 4 yr of age were recruited. All participants were involved in strength training. AAS use was determined using a urine test (liquid chromatography with tandem mass spectrometry). MSNA was measured using the microneurography technique. FBF was measured by using venous occlusion plethysmography. BP was measured using an automatic oscillometric device. HR was recorded continuously through ECG. Isometric handgrip exercise was performed at 30% of the maximal voluntary contraction for 3 min, and mental stress was elicited by the Stroop color-word test for 4 min. RESULTS: The MSNA and FBF responses during exercise were similar between AASU and AASNU, with a trend toward higher MSNA (bursts per minute; P = 0.084) and lower forearm vascular conductance (FVC; units; P = 0.084) in AASU than in AASNU. During mental stress, AASU showed a significantly higher MSNA (P < 0.05) and lower FBF (P < 0.05) compared with AASNU. During both maneuvers, HR and BP increased linearly in both groups; however, AASU showed a significantly higher HR compared with AASNU. CONCLUSIONS: During muscle mechanoreflex activation (isometric exercise), AASU have normal MSNA and FBF responses, whereas during central command (mental stress) stimulation, AASU have exacerbated MSNA and blunted vasodilation. Therefore, mental stress seems to exacerbate neurovascular control throughout stress reaction situations in AASU. PMID- 29040223 TI - Effect of Losartan on the Acute Response of Human Elderly Skeletal Muscle to Exercise. AB - PURPOSE: To investigate the effect of blocking the angiotensin II Type I receptor (AT1R) upon the response to acute heavy-resistance exercise in elderly human skeletal muscle. The hypothesis was that AT1R blocking would result in a superior myogenic response accompanied by down-regulation of transforming growth factor beta and up-regulation of insulin-like growth factor-1 signaling. METHODS: Twenty eight healthy elderly men (+64 yr) were randomized into two groups, consuming either AT1R blocker (losartan, 100 mg.d) or placebo for 18 d before exercise. Participants performed one bout of heavy-unilateral-resistance exercise. Six muscle biopsies were obtained from the vastus lateralis muscles of each subject: two before exercise and four after exercise (4.5 h and 1, 4, and 7 d). Blood pressure and blood samples were collected at the same time points. Biopsies were sectioned for immunohistochemistry to determine the number of satellite cells associated with Type I and Type II fibers. Gene expression levels of Notch, connective tissue, and myogenic signaling pathways were determined by real-time reverse transcription polymerase chain reaction. RESULTS: Changes over time were detected for circulating creatine kinase, the number of satellite cells per Type I fiber, and most of the gene targets, with no specific effect of losartan on these. However, when compared with placebo, losartan intake resulted in a greater suppression of myostatin messenger RNA. CONCLUSIONS: In general, there does not seem to be any effect of AT1R blocking on satellite cell number or myogenic pathways in elderly men in the days after one bout of heavy-resistance exercise. However, the greater suppression of myostatin may prove to be beneficial over a long-term intervention designed to induce hypertrophy. PMID- 29040225 TI - Validation of a Novel Device to Measure and Provide Feedback on Sedentary Behavior. AB - PURPOSE: Pedometers, which enable self-monitoring of step counts, are effective in facilitating increases in physical activity. Similar devices which provide real-time feedback on sedentary (sitting) behavior are limited. This study aimed to develop and validate a novel device-the SitFIT-which could accurately measure and provide feedback on sedentary behavior and physical activity. METHODS: The SitFIT is a triaxial accelerometer, developed by PAL Technologies, which is worn in the front trouser pocket. This enables tracking of thigh inclination and therefore differentiation between sitting and upright postures, as well as tracking of step count. It has a display to provide user feedback. To determine the validity of the SitFIT for measuring sedentary behavior and step counts, 21 men, age 30 to 65 yr, with body mass index 26.6 +/- 3.9 kg.m wore a SitFIT in a front trouser pocket and an activPAL accelerometer attached to their thigh for up to 7 d. Outputs from the SitFIT were compared with the activPAL, which was assumed to provide criterion standard measurements of sitting and step counts. RESULTS: Mean step counts were approximately 4% lower with the SitFIT than activPAL, with correlation between the two methods being very high (r = 0.98) and no obvious bias from the line of equality (regression line, y = 1.0035x + 418.35). Mean sedentary time was approximately 5% higher with the SitFIT than activPAL, correlation between methods was high (r = 0.84), and the equation of the regression line was close to the line of equality (y = 0.8728x + 38.445). CONCLUSIONS: The SitFIT has excellent validity for measurement of free-living step counts and sedentary time and therefore addresses a clear need for a device that can be used as a tool to provide feedback on sedentary behavior to facilitate behavior change. PMID- 29040226 TI - Propranolol and Oxandrolone Therapy Accelerated Muscle Recovery in Burned Children. AB - INTRODUCTION: Severe burns result in prolonged hypermetabolism and skeletal muscle catabolism. Rehabilitative exercise training (RET) programs improved muscle mass and strength in severely burned children. The combination of RET with beta-blockade or testosterone analogs showed improved exercise-induced benefits on body composition and muscle function. However, the effect of RET combined with multiple drug therapy on muscle mass, strength, cardiorespiratory fitness, and protein turnover are unknown. In this placebo-controlled randomized trial, we hypothesize that RET combined with oxandrolone and propranolol (Oxprop) will improve muscle mass and function and protein turnover in severely burned children compared with burned children undergoing the same RET with a placebo. METHODS: We studied 42 severely burned children (7-17 yr) with severe burns over 30% of the total body surface area. Patients were randomized to placebo (22 control) or to Oxprop (20) and began drug administration within 96 h of admission. All patients began RET at hospital discharge as part of their standardized care. Muscle strength (N.m), power (W), VO2peak, body composition, and protein fractional synthetic rate and fractional breakdown rate were measured pre-RET (PRE) and post RET (POST). RESULTS: Muscle strength and power, lean body mass, and VO2peak increased with RET in both groups (P < 0.01). The increase in strength and power was significantly greater in Oxprop versus control (P < 0.01), and strength and power was greater in Oxprop over control POST (P < 0.05). Fractional synthetic rate was significantly higher in Oxprop than control POST (P < 0.01), resulting in improved protein net balance POST (P < 0.05). CONCLUSIONS: Rehabilitative exercise training improves body composition, muscle function, and cardiorespiratory fitness in children recovering from severe burns. Oxprop therapy augments RET-mediated improvements in muscle strength, power, and protein turnover. PMID- 29040227 TI - TESTOSTERONE SUPPLEMENTATION AND RETINAL VASCULAR DISEASE. AB - PURPOSE: To determine whether testosterone supplementation is associated with retinal artery occlusion (RAO) or retinal vein occlusion (RVO). METHODS: Retrospective matched cohort study using data from a large national U.S. insurance database. The testosterone cohort consisted of all male patients who filled a prescription for testosterone from 2000 to 2013. Five controls were matched on age (+/-3 years), sex, race, and similar time in plan (+/-3 months) for every exposed patient. Exclusion occurred for <2 years in the plan, <1 eye care visit, medications known to affect androgen levels, and systemic diseases associated with occlusions or increased testosterone. Cox proportional hazard regression assessed the hazard of a new diagnosis of RAO or RVO while controlling for age, race, diabetes mellitus, and hypertension. RESULTS: A total of 35,784 incident testosterone users were compared with 178,860 matched controls. Ninety three (0.3%) RAOs and 50 (0.1%) RVOs were found in the testosterone cohort and contrasted with 316 (0.2%) RAOs and 232 (0.1%) RVOs in the control group. After multivariate analysis, testosterone supplementation significantly increased the hazard of RAO (hazard ratio: 1.43, 95% confidence interval: 1.12-1.81, P = 0.004), but not of RVO (hazard ratio: 1.03, 95% confidence interval: 0.74-1.42, P = 0.86). CONCLUSION: Although the incidence of RAO and RVO is low in users of testosterone, supplementation therapy is associated with an increased hazard of RAO, but apparently not of RVO. PMID- 29040228 TI - Analytical Pitfalls of Therapeutic Drug Monitoring of Thiopurines in Patients With Inflammatory Bowel Disease. AB - The use of thiopurines in the treatment of inflammatory bowel disease (IBD) can be optimized by the application of therapeutic drug monitoring. In this procedure, 6-thioguanine nucleotides (6-TGN) and 6-methylmercaptopurine (6-MMP) metabolites are monitored and related to therapeutic response and adverse events, respectively. Therapeutic drug monitoring of thiopurines, however, is hampered by several analytical limitations resulting in an impaired translation of metabolite levels to clinical outcome in IBD. Thiopurine metabolism is cell specific and requires nucleated cells and particular enzymes for 6-TGN formation. In the current therapeutic drug monitoring, metabolite levels are assessed in erythrocytes, whereas leukocytes are considered the main target cells of these drugs. Furthermore, currently used methods do not distinguish between active nucleotides and their unwanted residual products. Last, there is a lack of a standardized laboratorial procedure for metabolite assessment regarding the substantial instability of erythrocyte 6-TGN. To improve thiopurine therapy in patients with IBD, it is necessary to understand these limitations and recognize the general misconceptions in this procedure. PMID- 29040229 TI - Development of a Liquid Chromatography-Tandem Mass Spectrometric Method for Quantification of Mycophenolic Acid and Its Glucuronides in Dried Blood Spot Samples. AB - BACKGROUND: Personalized immunosuppressive therapy, including accurate drug dosing based on the drug blood level, leads to better clinical outcomes, specifically regarding avoidance of drug-induced adverse effects and maintenance of efficacy. Mycophenolic acid (MPA) is used as an immunosuppressant in transplantation of various solid organs. The aim of this study was to develop a method for quantification of MPA and its metabolites, mycophenolic acid 7-O glucuronide (MPAG) and mycophenolic acid acyl glucuronide, in dried blood spot (DBS) samples, using liquid chromatography/electrospray ionization/tandem mass spectrometry. METHODS: For sample preparation, a microwave-drying approach was used to deactivate enzymes and reduce drying time. Blood volume was calculated in a DBS disk of 3 mm diameter. Concentrations of analytes in plasma from patients receiving mycophenolate mofetil were compared with DBS samples after hematocrit correction. RESULTS: The method yielded good recoveries of all 3 analytes (90.3% 104.2%). Blood volume in the disk was calculated as 3.0 +/- 0.2 MUL. Linearity over concentration ranges of 0.1-30 mcg/mL MPA, 0.1-200 mcg/mL MPAG, and 0.125-10 mcg/mL mycophenolic acid acyl glucuronide was obtained with r >=0.999. Intraday and interday variations were less than 14.6%, and accuracy was within +/-11.9%. Passing-Bablok analysis showed no significant differences between plasma concentrations and DBS concentrations after hematocrit correction of MPA and MPAG. CONCLUSIONS: We developed and validated a liquid chromatography/electrospray ionization-tandem mass spectrometry method for analysis of MPA in DBS samples. The method is useful for monitoring the MPA blood level. PMID- 29040230 TI - Serum Concentrations of Paliperidone After Administration of the Long-Acting Injectable Formulation. AB - BACKGROUND: The pharmacokinetics of long-acting intramuscular paliperidone in a naturalistic setting is not well documented. The objective of this study was to investigate the relationship between dose and serum concentrations of paliperidone using data from a routine therapeutic drug monitoring service. METHODS: Serum concentration measurements in 310 samples from 110 male and 75 female patients receiving depot injections of paliperidone were retrospectively retrieved from the therapeutic drug monitoring database. RESULTS: The median dose was 100 mg every 28 days. The median concentration/dose (C/D) ratio of paliperidone was 16.1 (nmol/L)/(mg/d), with a 10-90 percentile range of 7.8-31.0 (nmol/L)/(mg/d). Dose-adjusted serum concentrations were 33% higher in patients 65 years or older and more than 50% lower in patients taking the p-glycoprotein inducer carbamazepine. There were no significant effects of sex or dose on the C/D ratio. The median serum concentrations of paliperidone at the end of the dose interval were 31 nmol/L at an intramuscular dose of 50 mg/28 d, 53 nmol/L after a dose of 75 mg/28 d, 59 nmol/L after a dose of 100 mg/28 d, and 93 nmol/L after a dose of 150 mg/28 d. Forty-five percent of the measurements were lower than the suggested therapeutic range of 20-60 ng/mL (47-140 nmol/L). CONCLUSIONS: The data show a 4-fold interindividual difference in dose-adjusted serum concentrations within the 10-90 percentile range and illustrate the significant effects of age and p-glycoprotein induction on the pharmacokinetics of paliperidone. The study also indicates that at least in some patients, it might take longer time than anticipated to reach steady state. PMID- 29040231 TI - Continuous Infraclavicular Brachial Block Versus Single-Shot Nerve Block for Distal Radius Surgery: A Prospective Randomized Control Trial. AB - OBJECTIVES: To compare the efficacy of an infraclavicular single-shot nerve block to a continuous infusion through an OnQ infusion pump for rebound pain (between 12 and 24 hours postoperatively) and postoperative narcotic analgesia requirements in distal radius fractures. DESIGN: Prospective randomized control trial. SETTINGS: Performed at 2 hospitals affiliated with a large urban academic medical center. PATIENTS: Fifty patients undergoing operative fixation of distal radius fractures (OTA/AO type 23B/C). INTERVENTION: Patients were randomized to receive either an infraclavicular block as a single shot (SSB group) or a continuous infusion through an OnQ pump (OnQ group). MAIN OUTCOME MEASURES: Visual analog scale (0-10) pain levels and amount of pain medication taken. RESULTS: At all time points after discharge, mean postoperative pain scores were lower in the OnQ group versus the SSB group but did not reach statistical significance. At 12 hours postoperatively, the SSB group and OnQ group pain scores, respectively, were 5.2 and 4.1 (P = 0.1615). At 24 hours, the pain scores for the SSB and OnQ group, respectively, were 5.4 and 4.8 (P = 0.1918). At these same time points, the Percocet taken were the same at 1.3 and 2.3 (P = 0.8328 and 0.8617). Overall 5 of 24 patients in the OnQ group had pump malfunctions with 4 being removed before 48 hours. CONCLUSION: OnQ pump is not associated with statistically improved postoperative pain control compared with a single nerve block for distal radius fractures and did not address rebound pain. LEVEL OF EVIDENCE: Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040232 TI - In Vitro Effect of Vancomycin on the Viability of Articular Chondrocytes. AB - OBJECTIVES: To characterize the in vitro toxicity of vancomycin on articular cartilage. METHODS: Osteochondral samples extracted from fresh, juvenile porcine stifle (knee) joints were exposed to vancomycin saline concentrations of 2, 5, and 10 mg/mL and compared with a saline and nonsaline treated control. Comparison of chondrocyte viability was assessed with histology examination of chondrocyte degeneration using the Mankin criteria and a live/dead staining using ethidium homodimer-2 and calcien acetoxymethylester stain and confocal laser scanning microscopy. RESULTS: A comparison of chondrocyte viability in the control sample and 2 mg/mL group showed no statistical difference (P = 0.38). The chondrocyte toxicity was statistically significantly higher in both the 5 mg/mL (P = 0.003) and 10 mg/mL (P < 0.001) experimental groups in comparison to the control sample. Chondrocyte death increased in a statistically significant dose-dependent fashion. Histologically, the Mankin scores were higher for the saline-treated group in comparison to the untreated control group. CONCLUSIONS: Vancomycin is toxic to articular chondrocytes in concentrations of 5 mg/mL and greater. Strategies for controlling concentration must be developed before routine application of topical antibiotics around synovial joints is performed. PMID- 29040233 TI - Is the Best Plate a Nail? A Review of 3230 Unstable Intertrochanteric Fractures of the Proximal Femur. AB - OBJECTIVES: To evaluate the functional outcomes, revision, and mortality rates of 3 implants used for unstable intertrochanteric hip fractures; the sliding hip screw (SHS), with or without a trochanteric stabilization plate (TSP); and a cephalomedullary nail (CMN). DESIGN: Multicentre National Prospective Cohort Study. SETTING: Northern Ireland. PATIENT/PARTICIPANTS: Patients were identified from a prospective database. Fractures were classified according to OTA/AO A31A2.2, A2.3, and A3. All patients had a minimum of 12 months of follow-up. INTERVENTION: Patients received either an SHS, an SHS in combination with a TSP, or a CMN. Implant choice was at the discretion of the operating surgeon. OUTCOME MEASURE: Primary outcome was 12-month mortality analyzed by the Kaplan-Meier survival analysis. Secondary outcomes included 12-month functional status using a validated score and all time revision of implants for any reason. RESULTS: In total, 3230 patients met the inclusion criteria (2474 SHS, 158 SHS + TSP, and 598 CMN). CMN use increased over time, with concomitant reduction in SHS use. There was no significant difference in functional outcomes at 12 months (analysis of variance, P = 0.177). Although men were significantly younger, they were at a higher risk of 12-month mortality. CMNs had statistically significantly lower 12 month mortality rates (P = 0.0148). The highest revision rate (4.04%) was seen in patients treated with SHS alone (P = 0.041). CONCLUSIONS: The use of a CMN in unstable intertrochanteric hip fractures conveys the best results in functional outcomes, 12-month mortality, and has lower revision rates compared with an SHS +/- TSP. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040234 TI - Preventing Wedge Deformities When Treating Intertrochanteric Femur Fractures With Intramedullary Devices: A Technical Tip. AB - Intertrochanteric femur fractures are common injuries associated with significant patient morbidity and mortality and high societal costs. Although intramedullary devices have shown promises for treating a wide range of intertrochanteric femur fractures, improper technique can lead to malalignment, fracture displacement, and/or iatrogenic fractures. In particular, a "wedge effect" has been described, in which the passage of conical reamers and the intramedullary nail itself results in the distraction of intertrochanteric fragments with lateralization of the shaft from the femoral neck and varus malalignment. Here, we describe the mechanism by which this deformity is generated and describe techniques for preventing it, including the use of a modified starting point and an alternative to the conical opening reamers. PMID- 29040235 TI - Acetabular Fractures in Children and Adolescents: Comparison of Isolated Acetabular Fractures and Acetabular Fractures Associated With Pelvic Ring Injuries. AB - OBJECTIVES: To compare mechanism of injury, fracture pattern, displacement, clinical, and radiographic outcome of isolated acetabular fractures (group 1) versus acetabular fractures associated with a pelvic ring injury (group 2). DESIGN: Retrospective cohort comparative analysis. SETTING: Private orthopaedic practice associated with a level one teaching trauma center. MAIN OUTCOME MEASUREMENTS: Mechanism of injury, fracture pattern, displacement and treatment, Glasgow Coma Scale, Injury Severity Score, leg length discrepancy (LLD), and hip dysplasia. PATIENTS: Thirty-two children (group 1: 12 fractures; group 2: 25) were classified as 9 A1, 21 A3, 3 B1, 3 B2, and 1 B3 OTA/AO types. Eighteen children (22 fractures) were included with average follow-up of 33.3 months (6 84). The average age was 12.8 years (4-16). RESULTS: Main fracture pattern (75%) in group 1 was a posterior wall fracture (A1) caused by falls and sports in 50%. Six socket injuries had a hip dislocation, present only in group 1 (P < 0.001). The majority (84%) in group 2 had anterior wall/column (A3) fractures, caused by traffic accidents (88%). Fracture displacement in group 1 was higher than in group 2 (3.8 vs. 0.8 mm; P = 0.009). Group 2 had a lower Glasgow Coma Scale (P = 0.031) and a higher Injury Severity Score (P < 0.001). Nine (24%) fractures were treated operatively, significantly more were in group 1 (P < 0.001). Three (14%) children had complications including (LLD) (2) or hip dysplasia (2). CONCLUSION: Compared with isolated pediatric acetabular fractures, fractures associated with pelvic ring injuries have less displacement and are less likely to require operative treatment, but they show more associated injuries. Because of potential hip joint growth disturbance, LLD and hip dysplasia can occur. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID- 29040236 TI - Sprint Interval Training: What are the Clinical Implications and Precautions? PMID- 29040237 TI - Response. PMID- 29040238 TI - Routine Screening for Iron Deficiency Is an Important Component of Athlete Care. PMID- 29040239 TI - Response. PMID- 29040240 TI - Low Energy Availability in a Sleep-Low Training Study. PMID- 29040241 TI - Barriers to Implementation of Recommendations for Transport of Children in Ground Ambulances. AB - OBJECTIVES: The National Highway Traffic Safety Administration (NHTSA) released draft recommendations in 2010 on the safe transport of children in ground ambulances. The purpose of this study was to assess awareness of these guidelines among emergency medical service (EMS) agencies and to identify implementation barriers. METHODS: We conducted a cross-sectional, anonymous online survey of 911 responding, ground transport EMS agencies in Texas. Demographics, modes of transport based on case scenarios, and barriers to implementation were assessed. RESULTS: Of 62 eligible EMS agencies that took the survey, 35.7% were aware of the NHTSA guidelines, 62.5% agreed they would improve safety, and 41.1% planned to implement them. Seventy-five percent of EMS agencies used the ideal or acceptable alternative to transport children requiring continuous monitoring, and 69.5% chose ideal or acceptable alternatives for children requiring spinal immobilization. The ideal or acceptable alternative was not chosen for children who were not injured or ill (93.2%), ill or injured but not requiring continuous monitoring (53.3%), and situations when multiple patients required transport (57.6%). The main requirements for implementation were provider education, ambulance interior modifications, new guidelines in the EMS agency, and purchase of new equipment. CONCLUSIONS: Few EMS agencies are aware of the NHTSA guidelines on safe transport of children in ground ambulances. Although most agencies appropriately transport children who require monitoring, interventions, or spinal immobilization, they use inappropriate means to transport children in situations with multiple patients, lack of injury or illness, or lack of need for monitoring. PMID- 29040242 TI - Epidemiology and Predictors of Orbital Fractures in Children. AB - OBJECTIVES: Data regarding clinical predictors of orbital fractures in children are limited. We sought to describe the epidemiology of pediatric orbital fractures and identify the signs and symptoms of orbital fractures in children. METHODS: We performed a retrospective cohort study of children younger than 22 years who underwent a facial or orbital computed tomography (CT) scan to evaluate for orbital fracture. We included patients presenting to an emergency department of a tertiary care children's hospital between January 2009 and May 2013. The presence of an orbital fracture was assessed using the final interpretation of the CT by an attending radiologist in the electronic medical record. RESULTS: Among 326 children who underwent facial or orbital CT during the study period, 133 (41%) had an orbital fracture. The presence of nausea or vomiting, orbital tenderness, swelling, or ecchymosis and limitation of extraocular movement were each associated with the presence of an orbital fracture (P < 0.05 for each). Twenty-two children (6.7% of cohort and 16.5% of children with orbital fractures) underwent surgical repair for an orbital fracture. In the absence of orbital tenderness, swelling, or ecchymosis, there was 1 child with an orbital fracture who underwent operative intervention. CONCLUSIONS: Fewer than half of children undergoing CT have an orbital fracture identified, and fewer than 7% have a fracture that requires operative intervention. In the absence of orbital tenderness, swelling, or ecchymosis, only 1 child had an orbital fracture requiring surgical repair. PMID- 29040243 TI - Toxic Shock Syndrome: Still a Timely Diagnosis. AB - BACKGROUND: Toxic shock syndrome (TSS) is an acute, severe, toxin-mediated disease, characterized by fever, hypotension, and multiorgan system involvement. Toxic shock syndrome has made headlines because of its high associated morbidity and mortality rate in previously healthy young females. Incidence peaked in the early 1980s owing to increased usage of ultra-absorbent tampons. After improved patient education and tampon labeling, the incidence of menstrual TSS has declined. CASE: A previously healthy 14-year-old girl presented to an urgent care center with a 2-day history of fever, erythematous maculopapular rash, vomiting, diarrhea, and malaise. She was found to be tachycardic and hypotensive. Investigations revealed thrombocytopenia, an elevated white count and lactate, and acute kidney injury, consistent with septic shock. Recent tampon usage with menstruation was reported, and a pelvic examination revealed purulent vaginal discharge. The patient was transferred to a pediatric intensive care unit for antibiotic and vasopressor therapy. Vaginal swabs later tested positive for Staphylococcus aureus and TSS toxin-1. CONCLUSIONS: Although the incidence of TSS has decreased in recent years, it is crucial that clinicians rapidly recognize and treat this life-threatening condition. Emergency physicians should always have a high index of suspicion for TSS in young females presenting without another obvious cause of shock. A pelvic examination should always be completed in these cases. PMID- 29040244 TI - A Prospective Study of the Causes of Bruises in Premobile Infants. AB - OBJECTIVE: This study had 2 objectives. First, to determine the behavior of physicians evaluating premobile infants with bruises. Second, and most importantly, to learn whether infants with unexplained bruising who had been initially evaluated by primary care and emergency department (ED) physicians are as likely to have their bruises attributed to child abuse as those children evaluated by child abuse physicians. METHODS: Primary care, ED, and child abuse pediatricians (CAPs) in King County, Washington, San Mateo, Calif, Albuquerque, NM, La Crosse, Wis, and Torrance, Calif prospectively identified and studied infants younger than 6 months with less than 6 bruises, which were judged by the evaluating clinician to be explained or unexplained after their initial clinical examination. RESULTS: Between March 1, 2010, and March 1, 2017, 63 infants with initially explained and 46 infants with initially unexplained bruises were identified. Infants with unexplained bruises had complete coagulation and abuse evaluations less frequently if they were initially identified by primary care pediatricians or ED providers than by CAPs. After imaging, laboratory, and follow up, 54.2% (26) of the infants with initially unexplained bruises, including 2 who had been initially diagnosed with accidental injuries, were diagnosed as abused. Three (6.2%) infants had accidental bruising, 6 (12.4%) abuse mimics, 1 (2.5%) self-injury, 1 (2.5%) medical injury, and 11 (22.9%) remained of unknown causation. None had causal coagulation disorders. A total of 65.4% of the 26 abused infants had occult injuries detected by their imaging and laboratory evaluations. Six (23.1%) abused infants were not diagnosed until after they sustained subsequent injuries. Three (11.5%) were recognized abused by police investigation alone. Thirty-eight percent of the abused, bruised infants had a single bruise. Clinicians' estimates of abuse likelihood based on their initial clinical evaluation were inaccurate. Primary care, ED, and child abuse physicians identified abused infants at similar rates. CONCLUSIONS: More than half of premobile infants with initially unexplained bruises were found to be abused. Abuse was as likely for infants identified by primary care and ED providers as for those identified by CAPs. Currently, physicians often do not obtain full abuse evaluations in premobile infants with unexplained bruising. Their initial clinical judgment about abuse likelihood was inadequate. Bruised infants often have clinically occult abusive injuries or will sustain subsequent serious abuse. Bruised infants should have full abuse evaluations and referral for Protective Services and police assessments. PMID- 29040245 TI - Code Team Training: Demonstrating Adherence to AHA Guidelines During Pediatric Code Blue Activations. AB - OBJECTIVE: Pediatric code blue activations are infrequent events with a high mortality rate despite the best effort of code teams. The best method for training these code teams is debatable; however, it is clear that training is needed to assure adherence to American Heart Association (AHA) Resuscitation Guidelines and to prevent the decay that invariably occurs after Pediatric Advanced Life Support training. The objectives of this project were to train a multidisciplinary, multidepartmental code team and to measure this team's adherence to AHA guidelines during code simulation. METHODS: Multidisciplinary code team training sessions were held using high-fidelity, in situ simulation. Sessions were held several times per month. Each session was filmed and reviewed for adherence to 5 AHA guidelines: chest compression rate, ventilation rate, chest compression fraction, use of a backboard, and use of a team leader. After the first study period, modifications were made to the code team including implementation of just-in-time training and alteration of the compression team. RESULTS: Thirty-eight sessions were completed, with 31 eligible for video analysis. During the first study period, 1 session adhered to all AHA guidelines. During the second study period, after alteration of the code team and implementation of just-in-time training, no sessions adhered to all AHA guidelines; however, there was an improvement in percentage of sessions adhering to ventilation rate and chest compression rate and an improvement in median ventilation rate. CONCLUSIONS: We present a method for training a large code team drawn from multiple hospital departments and a method of assessing code team performance. Despite subjective improvement in code team positioning, communication, and role completion and some improvement in ventilation rate and chest compression rate, we failed to consistently demonstrate improvement in adherence to all guidelines. PMID- 29040246 TI - A Rare Case of Cecal Bascule in a Child With Normal Neurodevelopment. AB - Cecal volvulus is a rare cause of bowel obstruction in adults and an extremely rare presentation in children. One form known as a cecal bascule has only previously been reported in children with neurodevelopmental issues or with severe chronic constipation. We present the case of a 10-year-old boy who presented with an acute history of left lower quadrant abdominal pain, who upon investigation was found to have a cecal bascule. PMID- 29040247 TI - Use of Ondansetron for Vomiting After Head Trauma: Does It Mask Clinically Significant Traumatic Brain Injury? AB - OBJECTIVES: We describe ondansetron use in children with head injury evaluated in pediatric emergency departments and its association with return visits and late diagnoses of intracranial injuries requiring intervention. METHODS: Children ages 6 months to 18 years discharged without neuroimaging from 35 pediatric emergency departments with a diagnosis of head injury from 2009 to 2013 were identified retrospectively from the Pediatric Health Information System. We evaluated the rates of ondansetron use during the study period and of the association of ondansetron treatment with the diagnosis of intracranial injury, skull fracture, and return visits within 72 hours requiring admission or operative intervention. RESULTS: We identified 218,904 encounters during the study period. Of these, 5894 patients (2.8%) were given ondansetron. There was significant variation in the use of ondansetron during the index visit between hospitals (0.1%-5.7%), and ondansetron use significantly increased over the study period. Return visits within 72 hours were more likely for patients treated with ondansetron during the index visit (3.7% vs 1.9%; adjusted odds ratio, 1.99; 95% confidence interval, 1.7-2.4). These patients were more likely to be admitted than those not treated initially with ondansetron (7% vs 4%; adjusted odds ratio, 1.97; 95% confidence interval, 1.09-3.55). There were no significant differences in rates of skull fractures, intracranial injury, intensive care unit admission, or operative intervention between groups. CONCLUSIONS: Ondansetron use during an initial emergency department visit for head trauma in children not requiring neuroimaging is associated with a higher likelihood of return within 72 hours and subsequent admission. There were no differences in rates of missed skull fractures, intracranial injury, intensive care admission, or operative intervention for groups who were and were not treated with ondansetron; however, this study was underpowered to detect significant differences in these categories. Future investigations with greater numbers would be required to confidently assess these critical differences. PMID- 29040248 TI - Retrospective Evaluation of Surgical Anatomical Repair of Distal Biceps Brachii Tendon Rupture Using Suture Anchor Fixation. AB - BACKGROUND To date, no consensus has been reached regarding the preferred fixation method to use in the repair of distal biceps brachii tendon rupture. The aim of this study was to clinically and functionally (Mayo Elbow Performance Index, MEPI) assess the upper limb after surgical anatomic reinsertion of the distal biceps brachii tendon with the use of suture anchor fixation method with regard to postoperative time and limb dominance, and to assess postoperative complications. MATERIAL AND METHODS The sample comprised 18 males (age 52.09+/ 8.89 years) after surgical anatomical distal biceps brachii reinsertion using suture anchor fixation. A comprehensive clinical and functional evaluation and pain assessment were performed. RESULTS In terms of postoperative complications, an isolated case of surgical site sensory disturbances was noted. Circumferences (p-value 0.21-1.00) and ROM (p-value 0.07-1.00) were similar in the operated and nonoperated limbs. The isometric torque (IT) values of muscles flexing and supinating the forearm were comparable in both limbs (p-value 0.14-0.95), but in patients with the operated dominant limb, the mean IT value was not higher than the value obtained in the nonoperated nondominant one. The MEPI indicated good and excellent results (80.00+/-15.00-90.00+/-8.66 points), but a detailed individual analysis showed that reported scores were not in line with objectively measured features. CONCLUSIONS The results of the comprehensive retrospective evaluation justify the clinical use of suture anchors fixation method in the surgical anatomical reinsertion of a ruptured distal biceps brachii tendon. The assessment of a patient should always report both subjective and objective measures. PMID- 29040251 TI - What is the optimal duration of adjuvant therapy in colon cancer? PMID- 29040252 TI - In the pipeline: encorafenib and binimetinib in BRAF-mutated melanoma. PMID- 29040253 TI - Direct-to-consumer advertising of cancer treatments. PMID- 29040254 TI - When to initiate treatment in smoldering multiple myeloma. PMID- 29040255 TI - How I treat stage IV non-small cell lung cancer in the absence of any actionable oncogenic driver. PMID- 29040256 TI - The role of genomics in patients with advanced prostate cancer. PMID- 29040257 TI - Current challenges in the management of essential thrombocythemia. AB - Essential thrombocythemia (ET), an uncommon blood cancer, is one of the classic myeloproliferative neoplasms, a category that also includes polycythemia vera and primary myelofibrosis. All 3 diseases are clonal hematopoietic stem cell disorders. Since 2005, when scientists discovered a molecular aberration driving clonal hematopoiesis in polycythemia vera, our understanding of the genomic underpinnings of these conditions has increased rapidly. Over the last decades, primary prevention of thrombotic and hemorrhagic complications has improved the lives of patients with ET, and the ability to characterize the disease by the presence or absence of molecular mutations has lent precision to our prognostic models. This review outlines a modern approach to the diagnosis and treatment of ET. It highlights the 2016 World Health Organization standards for differentiating the disease from primary myelofibrosis, which is key for an accurate prognosis. It also describes the current risk stratification models and discusses the vascular and hemorrhagic risks that affect patients with this chronic condition, including younger individuals and pregnant women. Finally, it outlines a simple-to-follow treatment algorithm that is based on an understanding of the vascular risks and provides a foundation for discussing treatment choices with patients. PMID- 29040258 TI - Prognostic and therapeutic implications of DNA repair gene mutations in advanced prostate cancer. AB - Recent work directed toward understanding the molecular features of advanced prostate cancers has revealed a relatively high incidence of both germline and somatic alterations in genes involved in DNA damage repair (DDR). Many of these alterations likely play a critical role in the pathogenesis of more aggressive prostate cancers-leading to genomic instability and an increased probability of the development of lethal disease. However, because the ability to repair DNA damage with a high degree of fidelity is critical to an individual cell's survival, tumor cells harboring alterations in DDR pathway genes are also more susceptible to drugs that induce DNA damage or impair alternative DNA repair pathways. In addition, because the genomic instability that results from these alterations can lead to an inherently higher number of mutations than occur in cells with intact DDR pathways, patients with genomic instability may be more likely to respond to immune checkpoint inhibitors, presumably owing to a correspondingly high neoantigen burden. In this review, we discuss the emerging molecular taxonomy that is providing a framework for precision oncology initiatives aimed at developing targeted approaches for treating prostate cancer. PMID- 29040261 TI - Effects of growth hormone treatment on growth plate, bone, and mineral metabolism of young rats with uremia induced by adenine. AB - This corrects the article DOI: 10.1038/pr.2017.95. PMID- 29040259 TI - Introduction of various allergenic foods during infancy reduces risk of IgE sensitization at 12 months of age: a birth cohort study. AB - BackgroundIn this study, we aimed to determine whether introducing various allergenic foods during infancy is associated with IgE sensitization at 12 months of age.MethodsDetailed information on feeding practices regarding six possible allergenic foods (fruits, egg white, egg yolk, fish, shellfish, and peanuts) was obtained by administering age-specific questionnaires to parents of infants at ages 6 and 12 months. Fecal secretory IgA (sIgA), fecal eosinophil cationic protein (ECP), and serum levels of total IgE and IgE specific to 20 foods, and IgE specific to 20 inhalant allergens were also quantified at 12 months of age.ResultsAt 12 months of age, infants with IgE sensitization had been introduced to fewer allergenic food items during infancy (3.2+/-1.4 vs. 3.7+/-1.3 items). Compared with infants who were given 0-2 allergenic food items, infants introduced to 3-4 or >=5 allergenic food items showed a significantly lower risk of IgE sensitization (odds ratios (ORs) 0.62 and 0.61, respectively) and lower total IgE levels. In addition, non-introduction of egg white or egg yolk was significantly related to IgE sensitization (ORs 1.41 and 1.26, respectively).ConclusionIncreasing the diversity of allergenic foods in infancy, including fruits, egg white, egg yolk, fish, shellfish, and peanuts, may protect infants from IgE sensitization at 12 months of age. PMID- 29040262 TI - Serological and spatial analysis of alphavirus and flavivirus prevalence and risk factors in a rural community in western Kenya. AB - Alphaviruses, such as chikungunya virus, and flaviviruses, such as dengue virus, are (re)-emerging arboviruses that are endemic in tropical environments. In Africa, arbovirus infections are often undiagnosed and unreported, with febrile illnesses often assumed to be malaria. This cross-sectional study aimed to characterize the seroprevalence of alphaviruses and flaviviruses among children (ages 5-14, n = 250) and adults (ages 15 >= 75, n = 250) in western Kenya. Risk factors for seropositivity were explored using Lasso regression. Overall, 67% of participants showed alphavirus seropositivity (CI95 63%-70%), and 1.6% of participants showed flavivirus seropositivity (CI95 0.7%-3%). Children aged 10-14 were more likely to be seropositive to an alphavirus than adults (p < 0.001), suggesting a recent transmission period. Alphavirus and flavivirus seropositivity was detected in the youngest participants (age 5-9), providing evidence of inter epidemic transmission. Demographic variables that were significantly different amongst those with previous infection versus those without infection included age, education level, and occupation. Behavioral and environmental variables significantly different amongst those in with previous infection to those without infection included taking animals for grazing, fishing, and recent village flooding. Experience of recent fever was also found to be a significant indicator of infection (p = 0.027). These results confirm alphavirus and flavivirus exposure in western Kenya, while illustrating significantly higher alphavirus transmission compared to previous studies. PMID- 29040263 TI - Tuberculosis detection and the challenges of integrated care in rural China: A cross-sectional standardized patient study. AB - BACKGROUND: Despite recent reductions in prevalence, China still faces a substantial tuberculosis (TB) burden, with future progress dependent on the ability of rural providers to appropriately detect and refer TB patients for further care. This study (a) provides a baseline assessment of the ability of rural providers to correctly manage presumptive TB cases; (b) measures the gap between provider knowledge and practice and; (c) evaluates how ongoing reforms of China's health system-characterized by a movement toward "integrated care" and promotion of initial contact with grassroots providers-will affect the care of TB patients. METHODS/FINDINGS: Unannounced standardized patients (SPs) presenting with classic pulmonary TB symptoms were deployed in 3 provinces of China in July 2015. The SPs successfully completed 274 interactions across all 3 tiers of China's rural health system, interacting with providers in 46 village clinics, 207 township health centers, and 21 county hospitals. Interactions between providers and standardized patients were assessed against international and national standards of TB care. Using a lenient definition of correct management as at least a referral, chest X-ray or sputum test, 41% (111 of 274) SPs were correctly managed. Although there were no cases of empirical anti-TB treatment, antibiotics unrelated to the treatment of TB were prescribed in 168 of 274 interactions or 61.3% (95% CI: 55%-67%). Correct management proportions significantly higher at county hospitals compared to township health centers (OR 0.06, 95% CI: 0.01-0.25, p < 0.001) and village clinics (OR 0.02, 95% CI: 0.0 0.17, p < 0.001). Correct management in tests of knowledge administered to the same 274 physicians for the same case was 45 percentage points (95% CI: 37%-53%) higher with 24 percentage points (95% CI: -33% to -15%) fewer antibiotic prescriptions. Relative to the current system, where patients can choose to bypass any level of care, simulations suggest that a system of managed referral with gatekeeping at the level of village clinics would reduce proportions of correct management from 41% to 16%, while gatekeeping at the level of the township hospital would retain correct management close to current levels at 37%. The main limitations of the study are 2-fold. First, we evaluate the management of a one-time new patient presenting with presumptive TB, which may not reflect how providers manage repeat patients or more complicated TB presentations. Second, simulations under alternate policies require behavioral and statistical assumptions that should be addressed in future applications of this method. CONCLUSIONS: There were significant quality deficits among village clinics and township health centers in the management of a classic case of presumptive TB, with higher proportions of correct case management in county hospitals. Poor clinical performance does not arise only from a lack of knowledge, a phenomenon known as the "know-do" gap. Given significant deficits in quality of care, reforms encouraging first contact with lower tiers of the health system can improve efficiency only with concomitant improvements in appropriate management of presumptive TB patients in village clinics and township health centers. PMID- 29040264 TI - Comparison of pulmonary vascular permeability index PVPI and global ejection fraction GEF derived from jugular and femoral indicator injection using the PiCCO 2 device: A prospective observational study. AB - BACKGROUND: Transpulmonary thermodilution (TPTD) is used to derive cardiac output CO, global end-diastolic volume GEDV and extravascular lung water EVLW. To facilitate interpretation of these data, several ratios have been developed, including pulmonary vascular permeability index (defined as EVLW/(0.25*GEDV)) and global ejection fraction ((4*stroke volume)/GEDV). PVPI and GEF have been associated to the aetiology of pulmonary oedema and systolic cardiac function, respectively. Several studies demonstrated that the use of femoral venous access results in a marked overestimation of GEDV. This also falsely reduces PVPI and GEF. One of these studies suggested a correction formula for femoral venous access that markedly reduced the bias for GEDV. Consequently, the last PiCCO algorithm requires information about the CVC, and correction for femoral access has been shown. However, two recent studies demonstrated inconsistencies of the last PiCCO algorithm using incorrected GEDV for PVPI, but corrected GEDV for GEF. Nevertheless, these studies were based on mathematical analyses of data displayed in a total of 15 patients equipped with only a femoral, but not with a jugular CVC. Therefore, this study compared PVPI_fem and GEF_fem derived from femoral TPTD to values derived from jugular indicator injection in 25 patients with both jugular and femoral CVCs. METHODS: 54 datasets in 25 patients were recorded. Each dataset consisted of three triplicate TPTDs using the jugular venous access as the gold standard and the femoral access with (PVPI_fem_cor) and without (PVPI_fem_uncor) information about the femoral indicator injection to evaluate, if correction for femoral GEDV pertains to PVPI_fem and GEF_fem. RESULTS: PVPI_fem_uncor was significantly lower than PVPI_jug (1.48+/-0.47 vs. 1.84+/ 0.53; p<0.001). Similarly, PVPI_fem_cor was significantly lower than PVPI_jug (1.49+/-0.46 vs. 1.84+/-0.53; p<0.001). This is explained by the finding that PVPI_fem_uncor was not different to PVPI_fem_cor (1.48+/-0.47 vs. 1.49+/-0.46; n.s.). This clearly suggests that correction for femoral CVC does not pertain to PVPI. GEF_fem_uncor was significantly lower than GEF_jug (20.6+/-5.1% vs. 25.0+/ 6.1%; p<0.001). By contrast, GEF_fem_cor was not different to GEF_jug (25.6+/ 5.8% vs. 25.0+/-6.1%; n.s.). Furthermore, GEF_fem_cor was significantly higher than GEF_fem_uncor (25.6+/-5.8% vs. 20.6+/-5.1%; p<0.001). This finding emphasizes that an appropriate correction for femoral CVC is applied to GEF_fem_cor. The extent of the correction (25.5/20.6; 124%) for GEF and the relation of PVPI_jug/PVPI_fem_uncor (1.84/1.48; 124%) are in the same range as the ratio of GEDVI_fem_uncor/GEDVI_fem_cor (1056ml/m2/821mL/m2; 129%). This further emphasizes that GEF, but not PVPI is corrected in case of femoral indicator injection. CONCLUSIONS: Femoral indicator injection for TPTD results in significantly lower values for PVPI and GEF. While the last PiCCO algorithm appropriately corrects GEF, the correction is not applied to PVPI. Therefore, GEF values can be used in case of femoral CVC, but PVPI-values are substantially underestimated. PMID- 29040265 TI - Analysis of peripheral B cells and autoantibodies against the anti-nicotinic acetylcholine receptor derived from patients with myasthenia gravis using single cell manipulation tools. AB - The majority of patients with myasthenia gravis (MG), an organ-specific autoimmune disease, harbor autoantibodies that attack the nicotinic acetylcholine receptor (nAChR-Abs) at the neuromuscular junction of skeletal muscles, resulting in muscle weakness. Single cell manipulation technologies coupled with genetic engineering are very powerful tools to examine T cell and B cell repertoires and the dynamics of adaptive immunity. These tools have been utilized to develop mAbs in parallel with hybridomas, phage display technologies and B-cell immortalization. By applying a single cell technology and novel high-throughput cell-based binding assays, we identified peripheral B cells that produce pathogenic nAChR-Abs in patients with MG. Although anti-nAChR antibodies produced by individual peripheral B cells generally exhibited low binding affinity for the alpha-subunit of the nAChR and great sequence diversity, a small fraction of these antibodies bound with high affinity to native-structured nAChRs on cell surfaces. B12L, one such Ab isolated here, competed with a rat Ab (mAb35) for binding to the human nAChR and thus considered to recognize the main immunogenic region (MIR). By evaluating the Ab in in vitro cell-based assays and an in vivo rat passive transfer model, B12L was found to act as a pathogenic Ab in rodents and presumably in humans.These findings suggest that B cells in peripheral blood may impact MG pathogenicity. Our methodology can be applied not only to validate pathogenic Abs as molecular target of MG treatment, but also to discover and analyze Ab production systems in other human diseases. PMID- 29040266 TI - Chinese college freshmen's mental health problems and their subsequent help seeking behaviors: A cohort design (2005-2011). AB - Based on cohort data obtained from 13,085 college freshmen's (2005 to 2011) SCL 90 (the Symptom Check-List-90) reports and their subsequent 4-year psychological counseling help-seeking records, this study examined the association between college students' mental health problems and help-seeking behaviors across four college years. Female students' mental health problems and help-seeking behaviors increased from the 2005 to the 2011 cohorts and no changes emerged for male students across cohorts. Overall, male students reported higher levels of mental health problems than did female students in the first college year, whereas female students reported more help-seeking behaviors than did male students in the following four college years. College students' mental health problems was associated positively with help-seeking behaviors. College students were more likely to seek help from the college psychological counselling center when they experienced relatively few or quite a lot of mental health issues (i.e., an inversed U shape). Implications for future studies and practices are discussed. PMID- 29040267 TI - Protecting cows in small holder farms in East Africa from tsetse flies by mimicking the odor profile of a non-host bovid. AB - BACKGROUND: For the first time, differential attraction of pathogen vectors to vertebrate animals is investigated for novel repellents which when applied to preferred host animals turn them into non-hosts thereby providing a new paradigm for innovative vector control. For effectively controlling tsetse flies (Glossina spp.), vectors of African trypanosomosis, causing nagana, repellents more powerful than plant derived, from a non-host animal the waterbuck, Kobus ellipsiprymnus defassa, have recently been identified. Here we investigate these repellents in the field to protect cattle from nagana by making cattle as unattractive as the buck. METHODOLOGY/PRINCIPAL FINDINGS: To dispense the waterbuck repellents comprising guaiacol, geranylacetone, pentanoic acid and delta-octalactone, (patent application) we developed an innovative collar-mounted release system for individual cattle. We tested protecting cattle, under natural tsetse challenge, from tsetse transmitted nagana in a large field trial comprising 1,100 cattle with repellent collars in Kenya for 24 months. The collars provided substantial protection to livestock from trypanosome infection by reducing disease levels >80%. Protected cattle were healthier, showed significantly reduced disease levels, higher packed cell volume and significantly increased weight. Collars >60% reduced trypanocide use, 72.7% increase in ownership of oxen per household and enhanced traction power (protected animals ploughed 66% more land than unprotected). Land under cultivation increased by 73.4%. Increase in traction power of protected animals reduced by 69.1% acres tilled by hand per household per ploughing season. Improved food security and household income from very high acceptance of collars (99%) motivated the farmers to form a registered community based organization promoting collars for integrated tsetse control and their commercialization. CONCLUSION/SIGNIFICANCE: Clear demonstration that repellents from un-preferred hosts prevent contact between host and vector, thereby preventing disease transmission: a new paradigm for vector control. Evidence that deploying water buck repellents converts cattle into non-hosts for tsetse flies-'cows in waterbuck clothing'. PMID- 29040268 TI - Benefit and harm of intensive blood pressure treatment: Derivation and validation of risk models using data from the SPRINT and ACCORD trials. AB - BACKGROUND: Intensive blood pressure (BP) treatment can avert cardiovascular disease (CVD) events but can cause some serious adverse events. We sought to develop and validate risk models for predicting absolute risk difference (increased risk or decreased risk) for CVD events and serious adverse events from intensive BP therapy. A secondary aim was to test if the statistical method of elastic net regularization would improve the estimation of risk models for predicting absolute risk difference, as compared to a traditional backwards variable selection approach. METHODS AND FINDINGS: Cox models were derived from SPRINT trial data and validated on ACCORD-BP trial data to estimate risk of CVD events and serious adverse events; the models included terms for intensive BP treatment and heterogeneous response to intensive treatment. The Cox models were then used to estimate the absolute reduction in probability of CVD events (benefit) and absolute increase in probability of serious adverse events (harm) for each individual from intensive treatment. We compared the method of elastic net regularization, which uses repeated internal cross-validation to select variables and estimate coefficients in the presence of collinearity, to a traditional backwards variable selection approach. Data from 9,069 SPRINT participants with complete data on covariates were utilized for model development, and data from 4,498 ACCORD-BP participants with complete data were utilized for model validation. Participants were exposed to intensive (goal systolic pressure < 120 mm Hg) versus standard (<140 mm Hg) treatment. Two composite primary outcome measures were evaluated: (i) CVD events/deaths (myocardial infarction, acute coronary syndrome, stroke, congestive heart failure, or CVD death), and (ii) serious adverse events (hypotension, syncope, electrolyte abnormalities, bradycardia, or acute kidney injury/failure). The model for CVD chosen through elastic net regularization included interaction terms suggesting that older age, black race, higher diastolic BP, and higher lipids were associated with greater CVD risk reduction benefits from intensive treatment, while current smoking was associated with fewer benefits. The model for serious adverse events chosen through elastic net regularization suggested that male sex, current smoking, statin use, elevated creatinine, and higher lipids were associated with greater risk of serious adverse events from intensive treatment. SPRINT participants in the highest predicted benefit subgroup had a number needed to treat (NNT) of 24 to prevent 1 CVD event/death over 5 years (absolute risk reduction [ARR] = 0.042, 95% CI: 0.018, 0.066; P = 0.001), those in the middle predicted benefit subgroup had a NNT of 76 (ARR = 0.013, 95% CI: 0.0001, 0.026; P = 0.053), and those in the lowest subgroup had no significant risk reduction (ARR = 0.006, 95% CI: -0.007, 0.018; P = 0.71). Those in the highest predicted harm subgroup had a number needed to harm (NNH) of 27 to induce 1 serious adverse event (absolute risk increase [ARI] = 0.038, 95% CI: 0.014, 0.061; P = 0.002), those in the middle predicted harm subgroup had a NNH of 41 (ARI = 0.025, 95% CI: 0.012, 0.038; P < 0.001), and those in the lowest subgroup had no significant risk increase (ARI = -0.007, 95% CI: -0.043, 0.030; P = 0.72). In ACCORD-BP, participants in the highest subgroup of predicted benefit had significant absolute CVD risk reduction, but the overall ACCORD-BP participant sample was skewed towards participants with less predicted benefit and more predicted risk than in SPRINT. The models chosen through traditional backwards selection had similar ability to identify absolute risk difference for CVD as the elastic net models, but poorer ability to correctly identify absolute risk difference for serious adverse events. A key limitation of the analysis is the limited sample size of the ACCORD-BP trial, which expanded confidence intervals for ARI among persons with type 2 diabetes. Additionally, it is not possible to mechanistically explain the physiological relationships explaining the heterogeneous treatment effects captured by the models, since the study was an observational secondary data analysis. CONCLUSIONS: We found that predictive models could help identify subgroups of participants in both SPRINT and ACCORD-BP who had lower versus higher ARRs in CVD events/deaths with intensive BP treatment, and participants who had lower versus higher ARIs in serious adverse events. PMID- 29040269 TI - Elevated blood pressure and risk of mitral regurgitation: A longitudinal cohort study of 5.5 million United Kingdom adults. AB - BACKGROUND: Mitral regurgitation in people without prior cardiac disease is considered a degenerative disease with no established risk factors for its prevention. We aimed to test the hypothesis that elevated systolic blood pressure (SBP) across its usual spectrum is associated with higher risk of mitral regurgitation. METHODS AND FINDINGS: We used linked electronic health records from the United Kingdom Clinical Practice Research Datalink (CPRD) from 1 January 1990 to 31 December 2015. CPRD covers approximately 7% of the current UK population and is broadly representative of the population by age, sex, and ethnicity. About 5.5 million UK patients with no known cardiovascular or valve disease at baseline were included in this cohort study. We investigated the relationship between blood pressure (BP) and risk of mitral regurgitation using Cox regression models. Our primary exposure variable was SBP and our primary outcome was incident reports of mitral regurgitation, which were identified from hospital discharge reports or primary care records. Of the 5,553,984 patients in the CPRD that met our inclusion criteria, during the 10-year follow-up period, 28,655 (0.52%) were diagnosed with mitral regurgitation and a further 1,262 (0.02%) were diagnosed with mitral stenosis. SBP was continuously related to the risk of mitral regurgitation with no evidence of a nadir down to 115 mmHg (p < 0.001). Each 20 mmHg increment in SBP was associated with a 26% higher risk of mitral regurgitation (hazard ratio [HR] 1.26; CI 1.23, 1.29). The observed association was partially mediated by diseases affecting the left ventricle during follow-up (myocardial infarction [MI], ischaemic heart disease [IHD], cardiomyopathy, and heart failure). However, the percentage of excess risk mediated (PERM) by these proximate causes of secondary mitral regurgitation was only 13% (CI 6.1%, 20%), and accounting for them had little effect on the long term association between SBP and mitral regurgitation (mediator-adjusted HR 1.22; CI 1.20, 1.25; p < 0.001). Associations were similar for each 10 mmHg increment in diastolic blood pressure (DBP) (p < 0.001) or each 15 mmHg increment in pulse pressure (PP) (p < 0.001). By contrast, there was no association between SBP and risk of mitral stenosis (HR per 20 mmHg higher SBP 1.03; CI 0.93, 1.14; p = 0.58). These analyses are based on routinely collected data from health records which may be sensitive to measurement errors, and the observed associations may not be generalizable to less severe and subclinical cases of mitral regurgitation. CONCLUSIONS: Long-term exposure to elevated BP across its whole spectrum is associated with an increased risk of primary and secondary mitral regurgitation. These findings suggest that BP control may be of importance in the prevention of mitral regurgitation. PMID- 29040270 TI - Analysis of the interaction of Plexin-B1 and Plexin-B2 with Rnd family proteins. AB - The Rnd family of proteins, Rnd1, Rnd2 and Rnd3, are atypical Rho family GTPases, which bind to but do not hydrolyse GTP. They interact with plexins, which are receptors for semaphorins, and are hypothesised to regulate plexin signalling. We recently showed that each Rnd protein has a distinct profile of interaction with three plexins, Plexin-B1, Plexin-B2 and Plexin-B3, in mammalian cells, although it is unclear which region(s) of these plexins contribute to this specificity. Here we characterise the binary interactions of the Rnd proteins with the Rho binding domain (RBD) of Plexin-B1 and Plexin-B2 using biophysical approaches. Isothermal titration calorimetry (ITC) experiments for each of the Rnd proteins with Plexin-B1-RBD and Plexin-B2-RBD showed similar association constants for all six interactions, although Rnd1 displayed a small preference for Plexin-B1-RBD and Rnd3 for Plexin-B2-RBD. Furthermore, mutagenic analysis of Rnd3 suggested similarities in its interaction with both Plexin-B1-RBD and Plexin-B2-RBD. These results suggest that Rnd proteins do not have a clear-cut specificity for different Plexin-B-RBDs, possibly implying the contribution of additional regions of Plexin-B proteins in conferring functional substrate selection. PMID- 29040271 TI - Improving tuberculosis diagnosis: Better tests or better healthcare? AB - In a Perspective accompanying Sylvia and colleagues, Carlton Evans and colleagues discuss the challenge of squaring policies around tuberculosis diagnosis with the realities of clinical practice in small villages and low-resource settings. PMID- 29040272 TI - Woody lianas increase in dominance and maintain compositional integrity across an Amazonian dam-induced fragmented landscape. AB - Tropical forest fragmentation creates insular biological communities that undergo species loss and changes in community composition over time, due to area- and edge-effects. Woody lianas thrive in degraded and secondary forests, due to their competitive advantage over trees in these habitats. Lianas compete both directly and indirectly with trees, increasing tree mortality and turnover. Despite our growing understanding of liana-tree dynamics, we lack detailed knowledge of the assemblage-level responses of lianas themselves to fragmentation, particularly in evergreen tropical forests. We examine the responses of both sapling and mature liana communities to landscape-scale forest insularization induced by a mega hydroelectric dam in the Brazilian Amazon. Detailed field inventories were conducted on islands created during reservoir filling, and in nearby mainland continuous forest. We assess the relative importance of variables associated with habitat fragmentation such as area, isolation, surrounding forest cover, fire and wind disturbance, on liana community attributes including abundance, basal area, diversity, and composition. We also explore patterns of liana dominance relative to tree saplings and adults >=10 cm diameter at breast height. We find that 1) liana community composition remains remarkably similar across mainland continuous forest and islands, regardless of extreme area- and edge- effects and the loss of vertebrate dispersers in the latter; and 2) lianas are increasing in dominance relative to trees in the sapling layer in the most degraded islands, with both the amount of forest cover surrounding islands and fire disturbance history predicting liana dominance. Our data suggest that liana communities persist intact in isolated forests, regardless of extreme area- and edge-effects; while in contrast, tree communities simultaneously show evidence of increased turnover and supressed recruitment. These processes may lead to lianas becoming a dominant component of this dam-induced fragmented landscape in the future, due to their competitive advantage over trees in degraded forest habitats. Additional loss of tree biomass and diversity brought about through competition with lianas, and the concurrent loss of carbon storage, should be accounted for in impact assessments of future dam development. PMID- 29040273 TI - Schistosoma japonicum transmission risk maps at present and under climate change in mainland China. AB - BACKGROUND: The South-to-North Water Diversion (SNWD) project is designed to channel fresh water from the Yangtze River north to more industrialized parts of China. An important question is whether future climate change and dispersal via the SNWD may synergistically favor a northward expansion of species involved in hosting and transmitting schistosomiasis in China, specifically the intermediate host, Oncomelania hupensis. METHODOLOGY/ PRINCIPAL FINDINGS: In this study, climate spaces occupied by the four subspecies of O. hupensis (O. h. hupensis, O. h. robertsoni, O. h. guangxiensis and O. h. tangi) were estimated, and niche conservatism tested among each pair of subspecies. Fine-tuned Maxent (fMaxent) and ensemble models were used to anticipate potential distributions of O. hupensis under future climate change scenarios. We were largely unable to reject the null hypothesis that climatic niches are conserved among the four subspecies, so factors other than climate appear to account for the divergence of O. hupensis populations across mainland China. Both model approaches indicated increased suitability and range expansion in O. h. hupensis in the future; an eastward and northward shift in O. h. robertsioni and O. h. guangxiensis, respectively; and relative distributional stability in O. h. gangi. CONCLUSIONS/SIGNIFICANCE: The southern parts of the Central Route of SNWD will coincide with suitable areas for O. h. hupensis in 2050-2060; its suitable areas will also expand northward along the southern parts of the Eastern Route by 2080-2090. Our results call for rigorous monitoring and surveillance of schistosomiasis along the southern Central Route and Eastern Route of the SNWD in a future, warmer China. PMID- 29040275 TI - Nocturnal sleep mediates the relationship between morningness-eveningness preference and the sleep architecture of afternoon naps in university students. AB - The present study investigated the parameters of nocturnal sleep that mediate the relationship between morningness-eveningness preference and the sleep architecture of naps in university students. This study had a cross-sectional, descriptive correlational design. The sleep architecture of 52 students invited to take an afternoon nap in the laboratory was recorded. The morningness eveningness questionnaire (MEQ) was used to evaluate morningness-eveningness preference. An actigraph was used to collect students' nighttime sleep data in the week preceding the study. Polysomnography was used to measure the sleep architecture of the participants' naps. After adjustments for potential factors, although the MEQ did not directly correlate with the percentage of sleep stages in naps, the effects of the MEQ on the percentage of Stage 1 sleep, slow-wave sleep, and rapid eye movement sleep; sleep duration; and sleep efficiency of naps were mediated by the total sleep time in the preceding week. This preliminary study suggests that nap quality was affected by morningness-eveningness preference through the mediation of total nocturnal sleep time. Therefore, future studies should be carefully designed to consider nighttime sleep patterns when analyzing the effects of chronotypes on daytime sleep. PMID- 29040274 TI - A quadratically regularized functional canonical correlation analysis for identifying the global structure of pleiotropy with NGS data. AB - Investigating the pleiotropic effects of genetic variants can increase statistical power, provide important information to achieve deep understanding of the complex genetic structures of disease, and offer powerful tools for designing effective treatments with fewer side effects. However, the current multiple phenotype association analysis paradigm lacks breadth (number of phenotypes and genetic variants jointly analyzed at the same time) and depth (hierarchical structure of phenotype and genotypes). A key issue for high dimensional pleiotropic analysis is to effectively extract informative internal representation and features from high dimensional genotype and phenotype data. To explore correlation information of genetic variants, effectively reduce data dimensions, and overcome critical barriers in advancing the development of novel statistical methods and computational algorithms for genetic pleiotropic analysis, we proposed a new statistic method referred to as a quadratically regularized functional CCA (QRFCCA) for association analysis which combines three approaches: (1) quadratically regularized matrix factorization, (2) functional data analysis and (3) canonical correlation analysis (CCA). Large-scale simulations show that the QRFCCA has a much higher power than that of the ten competing statistics while retaining the appropriate type 1 errors. To further evaluate performance, the QRFCCA and ten other statistics are applied to the whole genome sequencing dataset from the TwinsUK study. We identify a total of 79 genes with rare variants and 67 genes with common variants significantly associated with the 46 traits using QRFCCA. The results show that the QRFCCA substantially outperforms the ten other statistics. PMID- 29040276 TI - The impact of acute kidney injury on in-hospital mortality in acute ischemic stroke patients undergoing intravenous thrombolysis. AB - INTRODUCTION: Acute kidney injury (AKI) increases the risk of death in acute ischemic stroke (AIS) patients. Intravenous thrombolytic therapy (iv. rt-PA) seems to be the most effective treatment for AIS patients. The effects of AKI on iv. rt-PA treated AIS cases is less studied. Our paper addresses this issue. METHODS: 45 consecutive stroke patients treated with iv. rt-PA (median age = 64 years; 29 male) and 59 age and sex matched controls not eligible for iv. rt-PA have been enrolled in our study. Subjects were followed-up until hospital release or death (median follow up time = 12 days). RESULTS: The prevalence of AKI did not differ between iv. rt-PA treated patients and controls (35.5% vs. 33.89%). In both groups, AKI was associated with increased in-hospital mortality: 50.0% vs. 3.4% p<0.0001 (in the rt-PA treated), and 45% vs. 30.7% (in controls). AKI iv. rt PA treated patients had a significantly higher risk of in hospital mortality as compared to the no-AKI iv. rt-PA treated (HR = 15.2 (95%CI [1.87 to 124.24]; P = 0.011). In a Cox-multivariate model, the presence of AKI after iv. rt-PA remained a significant factor (HR = 8.354; p = 0.041) influencing the in-hospital mortality even after correction for other confounding factors. The independent predictors for AKI were: decreased eGFR baseline and elevated serum levels of uric acid at admission, (the model explained 60.2% of the AKI development). CONCLUSIONS: The risk of AKI was increased in AIS patients. Thrombolysis itself did not increase the risk of AKI. In the iv. rt-PA patients, as compared to non AKI, those which developed AKI had a higher rate of in-hospital mortality. The baseline eGFR and the serum uric acid at admission were independent predictors for AKI development in the iv. rt-PA treated AIS patients. PMID- 29040277 TI - Personality and achievement along medical training: Evidence from a cross-lagged analysis. AB - INTRODUCTION: Evidence on personality traits change implies it should be studied as an outcome and not only as an explanatory effect. Therefore, we aimed to assess how personality and academic achievement sway each other. Three cohorts of medical students (n = 181) comprised of school leavers and graduates, completed NEO-FFI when admitted (baseline) and later on medical training (follow-up). Previous achievement was measured as mean scores on national school examinations, and academic achievement as medical course average. Causal relations were studied by cross-lagged analysis. RESULTS: Cross-sectional analysis at baseline showed differences between graduates and school leavers on personality, with graduates scoring lower on neuroticism (beta = -12.344, p<0.001), and higher on openness to experience (beta = 5.257, p<0.001), conscientiousness (beta = 2.345, p = 0.004,) and agreeableness (beta = 6.993, p<0.001). Longitudinal analyses indicated that personality traits and achievement tracked over time. Cross-lagged analysis found a positive significant association between academic achievement and neuroticism at baseline (beta = 0.031, p = 0.014) and with being a graduate student (beta = 0.766, p = 0.006). After adjusting, no association was found between previous achievement and personality at follow-up. CONCLUSIONS: Some neuroticism may enhance medical academic achievement. The blurring of the initial differences between graduates and school leavers suggests a reasonable possibility of personality traits change along the medical course. Future research on medical selection processes cannot afford to ignore the influence of the medical school environment on personality traits change. PMID- 29040278 TI - PG-Metrics: A chemometric-based approach for classifying bacterial peptidoglycan data sets and uncovering their subjacent chemical variability. AB - Bacteria cells are protected from osmotic and environmental stresses by an exoskeleton-like polymeric structure called peptidoglycan (PG) or murein sacculus. This structure is fundamental for bacteria's viability and thus, the mechanisms underlying cell wall assembly and how it is modulated serve as targets for many of our most successful antibiotics. Therefore, it is now more important than ever to understand the genetics and structural chemistry of the bacterial cell walls in order to find new and effective methods of blocking it for the treatment of disease. In the last decades, liquid chromatography and mass spectrometry have been demonstrated to provide the required resolution and sensitivity to characterize the fine chemical structure of PG. However, the large volume of data sets that can be produced by these instruments today are difficult to handle without a proper data analysis workflow. Here, we present PG-metrics, a chemometric based pipeline that allows fast and easy classification of bacteria according to their muropeptide chromatographic profiles and identification of the subjacent PG chemical variability between e.g. bacterial species, growth conditions and, mutant libraries. The pipeline is successfully validated here using PG samples from different bacterial species and mutants in cell wall proteins. The obtained results clearly demonstrated that PG-metrics pipeline is a valuable bioanalytical tool that can lead us to cell wall classification and biomarker discovery. PMID- 29040279 TI - Social exclusion leads to attentional bias to emotional social information: Evidence from eye movement. AB - Social exclusion has many effects on individuals, including the increased need to belong and elevated sensitivity to social information. Using a self-reporting method, and an eye-tracking technique, this study explored people's need to belong and attentional bias towards the socio-emotional information (pictures of positive and negative facial expressions compared to those of emotionally-neutral expressions) after experiencing a brief episode of social exclusion. We found that: (1) socially-excluded individuals reported higher negative emotions, lower positive emotions, and stronger need to belong than those who were not socially excluded; (2) compared to a control condition, social exclusion caused a longer response time to probe dots after viewing positive or negative face images; (3) social exclusion resulted in a higher frequency ratio of first attentional fixation on both positive and negative emotional facial pictures (but not on the neutral pictures) than the control condition; (4) in the social exclusion condition, participants showed shorter first fixation latency and longer first fixation duration to positive pictures than neutral ones but this effect was not observed for negative pictures; (5) participants who experienced social exclusion also showed longer gazing duration on the positive pictures than those who did not; although group differences also existed for the negative pictures, the gaze duration bias from both groups showed no difference from chance. This study demonstrated the emotional response to social exclusion as well as characterising multiple eye-movement indicators of attentional bias after experiencing social exclusion. PMID- 29040280 TI - Quantitative analysis of neural tissues around the optic disc after panretinal photocoagulation in patients with diabetic retinopathy. AB - In this retrospective cross-sectional study, we quantitatively analyzed the tomographic features in the neural tissues around the optic disc in patients with diabetic retinopathy with and without panretinal photocoagulation. We analyzed 206 eyes, comprising 33 normal eyes in subjects without diabetes (group I), 30 eyes without diabetic retinopathy (group II), 66 eyes with non-proliferative diabetic retinopathy (group III), 45 eyes with panretinal photocoagulation (group IV), and 32 eyes with normal tension glaucoma (group V). Sequential images acquired using swept-source optical coherence tomography in three-dimensional mode were used to measure peripapillary retinal nerve fiber layer thickness, neuro-retinal rim thickness, anterior lamina cribrosa depth, prelaminar thickness, and thickness of the lamina cribrosa. The peripapillary retinal nerve fiber layer thickness and lamina cribrosa thickness were significantly thinner in group IV than in group III (p = 0.019 and p < 0.001). However, there was no significant difference in rim thickness, anterior lamina cribrosa depth, or prelaminar thickness between groups III and IV (p = 0.307, p = 0.877, and p = 0.212). Multivariate analysis revealed that time since panretinal photocoagulation and thickness of the lamina cribrosa had a significant effect on peripapillary retinal nerve fiber layer thickness (p < 0.001 and p = 0.014). In group IV, there was a negative correlation between time elapsed since panretinal photocoagulation and peripapillary retinal nerve fiber layer thickness, rim thickness, and thickness of the lamina cribrosa (r = -0.765, r = -0.490, and r = 0.419), but no correlation with prelaminar thickness or anterior lamina cribrosa depth (r = 0.104 and r = -0.171). Panretinal photocoagulation may be related to thinning of the peripapillary retinal nerve fiber layer, rim thickness, and lamina cribrosa, but not prelaminar thickness or anterior lamina cribrosa depth. These features are different from the peripapillary features of eyes with typical normal tension glaucoma. PMID- 29040281 TI - Impaired anti-fibrotic effect of bone marrow-derived mesenchymal stem cell in a mouse model of pulmonary paracoccidioidomycosis. AB - Bone marrow-derived mesenchymal stem cells (BMMSCs) have been consider as a promising therapy in fibrotic diseases. Experimental models suggest that BMMSCs may be used as an alternative therapy to treat chemical- or physical-induced pulmonary fibrosis. We investigated the anti-fibrotic potential of BMMSCs in an experimental model of lung fibrosis by infection with Paracoccidioides brasiliensis. BMMSCs were isolated and purified from BALB/c mice using standardized methods. BALB/c male mice were inoculated by intranasal infection of 1.5x106 P. brasiliensis yeasts. Then, 1x106 BMMSCs were administered intra venous at 8th week post-infection (p.i.). An additional group of mice was treated with itraconazole (ITC) two weeks before BMMSCs administration. Animals were sacrificed at 12th week p.i. Histopathological examination, fibrocytes counts, soluble collagen and fibrosis-related genes expression in lungs were evaluated. Additionally, human fibroblasts were treated with homogenized lung supernatants (HLS) to determine induction of collagen expression. Histological analysis showed an increase of granulomatous inflammatory areas in BMMSCs-treated mice. A significant increase of fibrocytes count, soluble collagen and collagen-3alpha1, TGF-beta3, MMP-8 and MMP-15 genes expression were also observed in those mice. Interestingly, when combined therapy BMMSCs/ITC was used there is a decrease of TIMP-1 and MMP-13 gene expression in infected mice. Finally, human fibroblasts stimulated with HLS from infected and BMMSCs-transplanted mice showed a higher expression of collagen I. In conclusion, our findings indicate that late infusion of BMMSCs into mice infected with P. brasiliensis does not have any anti-fibrotic effect; possibly because their interaction with the fungus promotes collagen expression and tissue remodeling. PMID- 29040282 TI - Colorectal carcinoma tumour budding and podia formation in the xenograft microenvironment. AB - Tumour budding and podia formation are well-appreciated in surgical pathology as an aggressive invasion phenotype of colorectal carcinoma cells that is attained in the microenvironment of the invasive margin. In this study, we addressed how tumour budding and podia formation feature in xenografts. Primary colorectal carcinomas (N = 44) of various molecular types (sporadic standard type, high degree microsatellite-unstable, CpG island methylator phenotype) were transplanted subcutaneously into T and B cell-deficient NSG mice, making possible immunohistochemistry with routine surgical pathology antibodies. Tumor budding and podia formation were both appreciably present in the xenografts. Quantitative evaluations of cytokeratin immunostains of primaries and their corresponding xenografts showed a reduction of tumour buds in the xenografts. Furthermore, in xenografts tumour cells were completely negative by pSTAT3 immunohistochemistry, indicating absence of cytokine/chemokine signalling, but nuclear beta-catenin and SMAD4 immunostainings as read-out of wnt and BMP pathway activation, respectively, were maintained. Carcinoma cells in most xenografts retained immunostaining of at least some nuclei by immunohistochemistry with antibodies against pERK1/2. K-ras/B-raf mutational status did not correlate with tumour budding or podia formation in the xenografts. Our results indicate that tumour budding and podia formation can be modelled by xenografting, and in NSG mice it can be studied with the same immunohistochemical methods as used for primaries in surgical pathology. Dysregulation of wnt and BMP signalling appears to be transferred into the xenograft microenvironment, but not cytokine/chemokine signalling. PMID- 29040283 TI - Non-linear Min protein interactions generate harmonics that signal mid-cell division in Escherichia coli. AB - The Min protein system creates a dynamic spatial pattern in Escherichia coli cells where the proteins MinD and MinE oscillate from pole to pole. MinD positions MinC, an inhibitor of FtsZ ring formation, contributing to the mid-cell localization of cell division. In this paper, Fourier analysis is used to decompose experimental and model MinD spatial distributions into time-dependent harmonic components. In both experiment and model, the second harmonic component is responsible for producing a mid-cell minimum in MinD concentration. The features of this harmonic are robust in both experiment and model. Fourier analysis reveals a close correspondence between the time-dependent behaviour of the harmonic components in the experimental data and model. Given this, each molecular species in the model was analysed individually. This analysis revealed that membrane-bound MinD dimer shows the mid-cell minimum with the highest contrast when averaged over time, carrying the strongest signal for positioning the cell division ring. This concurs with previous data showing that the MinD dimer binds to MinC inhibiting FtsZ ring formation. These results show that non linear interactions of Min proteins are essential for producing the mid-cell positioning signal via the generation of second-order harmonic components in the time-dependent spatial protein distribution. PMID- 29040284 TI - The prevalence and clinical manifestation of hereditary thrombophilia in Korean patients with unprovoked venous thromboembolisms. AB - BACKGROUND: Hereditary thrombophilia (HT) is a genetic predisposition to thrombosis. Asian mutation spectrum of HT is different from Western ones. We investigated the incidence and clinical characteristics of HT in Korean patients with unprovoked venous thromboembolism (VTE). METHODS: Among 369 consecutive patients with thromboembolic event who underwent thrombophilia tests, we enrolled 222 patients diagnosed with unprovoked VTE. The presence of HT was confirmed by DNA sequencing of the genes that cause deficits in natural anticoagulants (NAs). Median follow-up duration was 40+/-38 months. RESULTS: Among the 222 patients with unprovoked VTE, 66 (29.7%) demonstrated decreased NA level, and 33 (14.9%) were finally confirmed to have HT in a genetic molecular test. Antithrombin III deficiency (6.3%) was most frequently detected, followed by protein C deficiency (5.4%), protein S deficiency (1.8%), and dysplasminogenemia (1.4%). The HT group was significantly younger (37 [32-50] vs. 52 [43-65] years; P < 0.001) and had a higher proportion of male (69.7% vs. 47%; P = 0.013), more previous VTE events (57.6% vs. 31.7%; P = 0.004), and a greater family history of VTE (43.8% vs. 1.9%; P < 0.001) than the non-HT group. Age <45 years and a family history of VTE were independent predictors for unprovoked VTE with HT (odds ratio, 9.435 [2.45 36.35]; P = 0.001 and 92.667 [14.95-574.29]; P < 0.001). CONCLUSIONS: About 15% of patients with unprovoked VTE had HT. A positive family history of VTE and age <45 years were independent predictors for unprovoked VTE caused by HT. PMID- 29040285 TI - De novo pyrimidine synthesis is necessary for intestinal colonization of Salmonella Typhimurium in chicks. AB - pyrE (STM3733) encodes orotate phosphoribosyltransferase (OPRTase; EC 2.4.2.10), the fifth enzyme of the de novo pyrimidine biosynthetic pathway. We identified a DeltapyrE mutant as under selection in screening of a Salmonella mutant library in 4-day old chicks. Here, we confirm that a DeltapyrE mutant colonizes 4-day old chicks poorly in competitive infection with isogenic wild type, and that the ability of this mutant to colonize chicks could be restored by providing a copy of pyrE in trans. We further show that our DeltapyrE mutant grows poorly in nutrient poor conditions in vitro, and that the ability of this mutant to grow is restored, both in vitro and in chicks, when precursors to the pyrimidine salvage pathway were provided. This finding suggests that the environment in the chick intestine during our infections lacks sufficient precursors of the pyrimidine salvage pathway to support Salmonella growth. Finally, we show that the colonization defect of a DeltapyrE mutant during infection occurs in to chicks, but not in CBA/J mice or ligated ileal loops in calves. Our data suggest that de novo pyrimidine synthesis is necessary for colonization of Salmonella Typhimurium in the chick, and that the salvage pathway is not used in this niche. PMID- 29040287 TI - Antimicrobial activity of carbon monoxide-releasing molecule [Mn(CO)3(tpa kappa3N)]Br versus multidrug-resistant isolates of Avian Pathogenic Escherichia coli and its synergy with colistin. AB - Antimicrobial resistance is a growing global concern in human and veterinary medicine, with an ever-increasing void in the arsenal of clinicians. Novel classes of compounds including carbon monoxoide-releasing molecules (CORMs), for example the light-activated metal complex [Mn(CO)3(tpa-kappa3N)]Br, could be used as alternatives/to supplement traditional antibacterials. Avian pathogenic Escherichia coli (APEC) represent a large reservoir of antibiotic resistance and can cause serious clinical disease in poultry, with potential as zoonotic pathogens, due to shared serotypes and virulence factors with human pathogenic E. coli. The in vitro activity of [Mn(CO)3(tpa-kappa3N)]Br against multidrug resistant APECs was assessed via broth microtitre dilution assays and synergy testing with colistin performed using checkerboard and time-kill assays. In vivo antibacterial activity of [Mn(CO)3(tpa-kappa3N)]Br alone and in combination with colistin was determined using the Galleria mellonella wax moth larvae model. Animals were monitored for life/death, melanisation and bacterial numbers enumerated from larval haemolymph. In vitro testing produced relatively high [Mn(CO)3(tpa-kappa3N)]Br minimum inhibitory concentrations (MICs) of 1024 mg/L. However, its activity was significantly increased with the addition of colistin, bringing MICs down to <=32 mg/L. This synergy was confirmed in time-kill assays. In vivo assays showed that the combination of [Mn(CO)3(tpa-kappa3N)]Br with colistin produced superior bacterial killing and significantly increased larval survival. In both in vitro and in vivo assays light activation was not required for antibacterial activity. This data supports further evaluation of [Mn(CO)3(tpa kappa3N)]Br as a potential agent for treatment of systemic infections in humans and animals, when used with permeabilising agents such as colistin. PMID- 29040286 TI - Human babesiosis: Indication of a molecular mimicry between thrombospondin domains from a novel Babesia microti BmP53 protein and host platelets molecules. AB - Human babesiosis is caused by the apicomplexan parasite Babesia microti, which is of major public health concern in the United States and elsewhere, resulting in malaise and fatigue, followed by a fever and hemolytic anemia. In this paper we focus on the characterization of a novel B. microti thrombospondin domain (TSP1) containing protein (BmP53) from the new annotation of the B. microti genome (locus 'BmR1_04g09041'). This novel protein (BmP53) had a single TSP1 and a transmembrane domain, with a short cytoplasmic tail containing a sub-terminal glutamine residue, but no signal peptide and Von Willebrand factor type A domains (VWA), which are found in classical thrombospondin-related adhesive proteins (TRAP). Co-localization assays of BmP53 and Babesia microti secreted antigen 1 (BmSA1) suggested that BmP53 might be a non-secretory membranous protein. Molecular mimicry between the TSP1 domain from BmP53 and host platelets molecules was indicated through different measures of sequence homology, phylogenetic analysis, 3D structure and shared epitopes. Indeed, hamster isolated platelets cross-reacted with mouse anti-BmP53-TSP1. Molecular mimicry are used to help parasites to escape immune defenses, resulting in immune evasion or autoimmunity. Furthermore, specific host reactivity was also detected against the TSP1-free part of BmP53 in infected hamster sera. In conclusion, the TSP1 domain mimicry might help in studying the mechanisms of parasite-induced thrombocytopenia, with the TSP1-free truncate of the protein representing a potential safe candidate for future vaccine studies. PMID- 29040288 TI - Music viewed by its entropy content: A novel window for comparative analysis. AB - Polyphonic music files were analyzed using the set of symbols that produced the Minimal Entropy Description, which we call the Fundamental Scale. This allowed us to create a novel space to represent music pieces by developing: (a) a method to adjust a textual description from its original scale of observation to an arbitrarily selected scale, (b) a method to model the structure of any textual description based on the shape of the symbol frequency profiles, and (c) the concept of higher order entropy as the entropy associated with the deviations of a frequency-ranked symbol profile from a perfect Zipfian profile. We call this diversity index the '2nd Order Entropy'. Applying these methods to a variety of musical pieces showed how the space of 'symbolic specific diversity-entropy' and that of '2nd order entropy' captures characteristics that are unique to each music type, style, composer and genre. Some clustering of these properties around each musical category is shown. These methods allow us to visualize a historic trajectory of academic music across this space, from medieval to contemporary academic music. We show that the description of musical structures using entropy, symbol frequency profiles and specific symbolic diversity allows us to characterize traditional and popular expressions of music. These classification techniques promise to be useful in other disciplines for pattern recognition and machine learning. PMID- 29040290 TI - Complex Conjugated certificateless-based signcryption with differential integrated factor for secured message communication in mobile network. AB - Certificateless-based signcryption overcomes inherent shortcomings in traditional Public Key Infrastructure (PKI) and Key Escrow problem. It imparts efficient methods to design PKIs with public verifiability and cipher text authenticity with minimum dependency. As a classic primitive in public key cryptography, signcryption performs validity of cipher text without decryption by combining authentication, confidentiality, public verifiability and cipher text authenticity much more efficiently than the traditional approach. In this paper, we first define a security model for certificateless-based signcryption called, Complex Conjugate Differential Integrated Factor (CC-DIF) scheme by introducing complex conjugates through introduction of the security parameter and improving secured message distribution rate. However, both partial private key and secret value changes with respect to time. To overcome this weakness, a new certificateless-based signcryption scheme is proposed by setting the private key through Differential (Diff) Equation using an Integration Factor (DiffEIF), minimizing computational cost and communication overhead. The scheme is therefore said to be proven secure (i.e. improving the secured message distributing rate) against certificateless access control and signcryption-based scheme. In addition, compared with the three other existing schemes, the CC-DIF scheme has the least computational cost and communication overhead for secured message communication in mobile network. PMID- 29040289 TI - Sole vibration improves locomotion through the recovery of joint movements in a mouse cast model. AB - We investigated the effects of a vibratory stimulus on the plantar surface of the hind limb for motor, sensory, and locomotive function using a mouse cast model. The right knee joint of C57BL/6 male mice (7 weeks, 20 g, n = 31) was flexed with aluminum splint and tape for 6 weeks. These mice were randomly divided into 2 groups (control group, n = 11 and vibration group, n = 12). The mice in the vibration group received vibration on the sole of the ankle for 15 minutes per day, 5 days per week. After the knee joint cast was removed, we measured the range of motion (ROM) of both knee and ankle joints and the sensory threshold of the sole. Further, both walking and swimming movements were analyzed with a digital video. The sole vibration did not affect the passive ROM of the knee joint and sensory threshold after cast removal. However, it increased the ankle dorsiflexion range and improved free walking, swimming, and active movement of the knee joint. In conclusion, we show that the vibration recovered both walking and swimming movements, which resulted from improvements in both the passive ankle dorsiflexion and active knee movement. PMID- 29040291 TI - Trade-off between jerk and time headway as an indicator of driving style. AB - Variation in longitudinal control in driving has been discussed in both traffic psychology and transportation engineering. Traffic psychologists have concerned themselves with "driving style", a habitual form of behavior marked by it's stability, and its basis in psychological traits. Those working in traffic microsimulation have searched for quantitative ways to represent different driver car systems in car following models. There has been unfortunately little overlap or theoretical consistency between these literatures. Here, we investigated relationships between directly observable measures (time headway, acceleration and jerk) in a simulated driving task where the driving context, vehicle and environment were controlled. We found individual differences in the way a trade off was made between close but jerky vs. far and smooth following behavior. We call these "intensive" and "calm" driving, and suggest this trade-off can serve as an indicator of a possible latent factor underlying driving style. We posit that pursuing such latent factors for driving style may have implications for modelling driver heterogeneity across various domains in traffic simulation. PMID- 29040292 TI - Intereye comparison of ocular factors in normal tension glaucoma with asymmetric visual field loss in Korean population. AB - PURPOSE: To identify ocular parameters corresponding to asymmetric visual field (VF) loss in normal tension glaucoma (NTG) through intereye comparisons. PATIENTS AND METHODS: Medical records of NTG patients with asymmetric and symmetric VF losses were retrospectively reviewed. The criterion for asymmetry in VF was 6 dB difference of mean deviation. Refractive error, intraocular pressure (IOP), central corneal thickness, ovality index, and peripapillary atrophy (PPA)/disc area ratio were obtained from each patient. Intereye comparison was performed for asymmetric group, symmetric group, and myopic and nonmyopic asymmetric subgroups. RESULTS: We included 155 patients; 110 patients in asymmetric group and 45 patients in symmetric group. In intereye comparison for total asymmetric group, refractive error (P = 0.006), initial IOP (P = 0.001), ovality index (P = 0.008), and PPA (P < 0.001) were significantly asymmetric. For myopic subgroup, refractive error (P = 0.004), ovality index (P = 0.001), and PPA (P = 0.003) were significant factors. For nonmyopic subgroup, initial IOP (P = 0.003) and PPA (P = 0.007) were significant factors. Symmetric group showed no significant difference between the eyes. Multivariate analysis demonstrated that refractive error (P = 0.002) and PPA (P = 0.028) were significant factors in myopic subgroup, and initial IOP (P = 0.022) and PPA (P = 0.002) were significant factors in nonmyopic subgroup. CONCLUSIONS: In this intereye comparison, the more myopic eye in myopic NTG patient, and the more pressured eye in nonmyopic NTG patient demonstrated more severe VF loss. Myopic and nonmyopic patients may follow different pathophysiologic processes. Discriminative attentions should be paid to NTG patients by subtypes. PMID- 29040293 TI - Mapping of important taxonomic and productivity traits using genic and non-genic transposable element markers in peanut (Arachis hypogaea L.). AB - A mapping population of recombinant inbred lines (RILs) derived from TMV 2 and its mutant, TMV 2-NLM was employed for mapping important taxonomic and productivity traits using genic and non-genic transposable element markers in peanut. Single nucleotide polymorphism and copy number variation using RAD Sequencing data indicated very limited polymorphism between TMV 2 and TMV 2-NLM. But phenotypically they differed significantly for many taxonomic and productivity traits. Also, the RIL population showed significant variation for a few additional agronomic traits. A genetic linkage map of 1,205.66 cM was constructed using 91 genic and non-genic Arachis hypogaea transposable element (AhTE) markers. Using single marker analysis and QTL analysis, the markers with high phenotypic variance explained (PVE) were identified for branching pattern (32.3%), number of primary and secondary branches (19.9% and 28.4%, respectively), protein content (26.4%), days to 50% flowering (22.0%), content of oleic acid (15.1%), test weight (13.6%) and pod width (12.0%). Three genic markers (AhTE0357, AhTE0391, AhTE0025) with Arachis hypogaea miniature inverted repeat transposable element (AhMITE1) activity in the genes Araip.TG1BL (B02 chromosome), Aradu.7N61X (A09 chromosome) and Aradu.7065G (A07 chromosome), respectively showed strong linkage with these taxonomic, productivity and quality traits. Since TMV 2 and TMV 2-NLM differed subtly at DNA level, the background noise in detecting the marker-trait associations was minimum; therefore, the markers identified in this study for the taxonomic and productivity traits may be significant and useful in peanut molecular breeding. PMID- 29040294 TI - Towards social autonomous vehicles: Efficient collision avoidance scheme using Richardson's arms race model. AB - This paper presents the concept of a social autonomous agent to conceptualize such Autonomous Vehicles (AVs), which interacts with other AVs using social manners similar to human behavior. The presented AVs also have the capability of predicting intentions, i.e. mentalizing and copying the actions of each other, i.e. mirroring. Exploratory Agent Based Modeling (EABM) level of the Cognitive Agent Based Computing (CABC) framework has been utilized to design the proposed social agent. Furthermore, to emulate the functionality of mentalizing and mirroring modules of proposed social agent, a tailored mathematical model of the Richardson's arms race model has also been presented. The performance of the proposed social agent has been validated at two levels-firstly it has been simulated using NetLogo, a standard agent-based modeling tool and also, at a practical level using a prototype AV. The simulation results have confirmed that the proposed social agent-based collision avoidance strategy is 78.52% more efficient than Random walk based collision avoidance strategy in congested flock like topologies. Whereas practical results have confirmed that the proposed scheme can avoid rear end and lateral collisions with the efficiency of 99.876% as compared with the IEEE 802.11n-based existing state of the art mirroring neuron-based collision avoidance scheme. PMID- 29040296 TI - Constructing regional climate networks in the Amazonia during recent drought events. AB - Climate networks are powerful approaches to disclose tele-connections in climate systems and to predict severe climate events. Here we construct regional climate networks from precipitation data in the Amazonian region and focus on network properties under the recent drought events in 2005 and 2010. Both the networks of the entire Amazon region and the extreme networks resulted from locations severely affected by drought events suggest that network characteristics show slight difference between the two drought events. Based on network degrees of extreme drought events and that without drought conditions, we identify regions of interest that are correlated to longer expected drought period length. Moreover, we show that the spatial correlation length to the regions of interest decayed much faster in 2010 than in 2005, which is because of the dual roles played by both the Pacific and Atlantic oceans. The results suggest that hub nodes in the regional climate network of Amazonia have fewer long-range connections when more severe drought conditions appeared in 2010 than that in 2005. PMID- 29040295 TI - Hydrophobic residues are critical for the helix-forming, hemolytic and bactericidal activities of amphipathic antimicrobial peptide TP4. AB - Antimicrobial peptides are important components of the host innate defense mechanism against invading pathogens, especially for drug-resistant bacteria. In addition to bactericidal activity, the 25 residue peptide TP4 isolated from Nile tilapia also stimulates cell proliferation and regulates the innate immune system in mice. In this report, TP4 hyperpolarized and depolarized the membrane potential of Pseudomonas aeruginosa at sub-lethal and lethal concentrations. It also inhibited and eradicated biofilm formation. The in vitro binding of TP4 to bacterial outer membrane target protein, OprI, was markedly enhanced by a membrane-like surfactant sarkosyl and lipopolysaccharide, which converted TP4 into an alpha-helix. The solution structure of TP4 in dodecylphosphocholine was solved by NMR analyses. It contained a typical alpha-helix at residues Phe10 Arg22 and a distorted helical segment at Ile6-Phe10, as well as a hydrophobic core at the N-terminus and a cationic patch at the C-terminus. Residues Ile16, Leu19 and Ile20 in the hydrophobic face of the main helix were critical for the integrity of amphipathic structure, other hydrophobic residues played important roles in hemolytic and bactericidal activities. A model for the assembly of helical TP4 embedded in sarkosyl vesicle is proposed. This study may provide valuable insight for engineering AMPs to have potent bactericidal activity but low hemolytic activity. PMID- 29040297 TI - Decreased NK cell immunity in kidney transplant recipients late post-transplant and increased NK-cell immunity in patients with recurrent miscarriage. AB - BACKGROUND: There is evidence that NK-cell reactivity might affect graft outcome in transplant recipients and pregnancy in women. METHOD: NK-cell subsets were determined in whole blood using eight-colour-fluorescence flow cytometry in patients before and after renal transplantation, patients with recurrent miscarriage (RM) and healthy controls (HC). RESULTS: Patients late post transplant (late-Tx) with functioning renal transplants showed abnormally low CD56dimCD16+ NK-cells containing both perforin and granzyme (vs HC p = 0.021) whereas RM patients exhibited abnormally high numbers of these cells (vs HC p = 0.043). CD56dimCD16+perforin+granzyme+ NK-cell counts were strikingly different between the two patient groups (p<0.001). In addition, recipients late-Tx showed abnormally low CD8+ NK-cells (vs HC p<0.001) in contrast to RM patients who showed an abnormal increase (vs HC p = 0.008). CD8+ NK-cell counts were strongly different between the two patient groups (p<0.001). Higher perforin+granzyme+CD56dimCD16+ and CD8+ NK-cells were associated with impaired graft function (p = 0.044, p = 0.032). After in-vitro stimulation, CD56dimCD16+ and CD56brightCD16dim/- NK-cells showed strong upregulation of CD107a and IFNy, whereas the content of perforin decreased dramatically as a consequence of perforin release. Recipients late post-Tx showed less in-vitro perforin release (= less cytotoxicity) than HC (p = 0.037) and lower perforin release was associated with good graft function (r = 0.738, p = 0.037). Notably, we observed strong in-vitro perforin release in 2 of 6 investigated RM patients. When circulating IL10+CD56bright NK-cells were analyzed, female recipients late post Tx (n = 9) showed significantly higher relative and absolute cell numbers than RM patients (p = 0.002 and p = 0.018, respectively); and high relative and absolute IL10+CD56bright NK-cell numbers in transplant recipients were associated with low serum creatinine (p = 0.004 and p = 0.012) and high glomerular filtration rate (p = 0.011 and p = 0.002, respectively). Female recipients late post-Tx exhibited similar absolute but higher relative numbers of IL10+IFNy- NK-cells than RM patients (p>0.05 and p = 0.016, respectively). CONCLUSION: NK-cells with lower cytotoxicity and immunoregulatory function might contribute to good long-term graft outcome, whereas circulating NK-cells with normal or even increased cytotoxicity and less immunoregulatory capacity are observed in patients with RM. PMID- 29040298 TI - Relative mobility of the pelvis and spine during trunk axial rotation in chronic low back pain patients: A case-control study. AB - BACKGROUND: Trunk axial rotation is a risk factor for chronic low back pain (CLBP). The characteristics of rotational mobility in the pelvis and spine among CLBP patients are not fully understood. PURPOSE: The purpose of this study was to examine three-dimensional kinematic changes, and to compare the differences of rotational mobility and coupled motion, in patients with and without CLBP. METHODS: Fifteen patients with CLBP and 15 age and sex matched healthy subjects participated in this study. Each subject performed trunk rotation to maximum range of motion (ROM) in a standing position. The kinematics data was collected using a three-dimensional motion analysis system. The outcomes measured were the rotational ROM and the spine/pelvis ratio (SPR) in transvers plane at both maximum and 50% rotation position. The coupled angles in sagittal and frontal planes were also measured. RESULTS: No significant differences in rotational ROM of the thorax, pelvis, and spine were observed between two groups at maximum rotation position. However, there was a significant interaction between groups and rotational ROM of pelvis and spine (F = 4.57, p = 0.04), and the SPR in CLBP patients was significantly greater than that of the healthy subjects (CLBP; 0.50 +/- 0.10 Control; 0.41 +/- 0.12, p = 0.04). The results at 50% rotation position were similar to that at maximum rotation. This indicates a relative increase in spinal rotation in the CLBP patients during trunk rotation. Moreover, the CLBP patients exhibited a significantly higher anterior tilt of the pelvis and extension of the spine in the sagittal plane coupled with rotation. CONCLUSIONS: CLBP patients had relative hyper rotational mobility of the spine as well as excessive spinal extension coupled with trunk rotation. These results suggest that uncoordinated trunk rotation might be a functional failure associated with CLBP. PMID- 29040299 TI - Comparison of capecitabine and oxaliplatin with S-1 as adjuvant chemotherapy in stage III gastric cancer after D2 gastrectomy. AB - AIM: To compare capecitabine and oxaliplatin (XELOX) with S-1 as adjuvant chemotherapy in stage III gastric cancer after D2 gastrectomy. METHODS: Clinical data from 206 patients who received XELOX or S-1 regimens as adjuvant chemotherapy in stage III gastric cancer were collected. Patients were divided into 2 groups according to regimen; the groups were XELOX (n = 114) and S-1 monotherapy (n = 92). RESULTS: 3-year disease-free survival (DFS) was higher in the S-1 group than in the XELOX group (66.6% vs 59.1%; p = 0.636). 3-year overall survival (OS) was 75.6% in the S-1 group and 69.6% in the XELOX group (p = 0.495). But, the difference was not statistically significant. Especially, for patients with stage IIIC disease, 3-year overall survival was 55.2% in the XELOX group and 39.0% in the S-1 group (hazard ratio, HR 0.50, 95% confidence interval, CI 0.23-1.10; p = 0.075). In multivariate analysis, N stage (HR, 5.639; 95% CI, 1.297-24.522; p = 0.021) and cycle completion as planned (HR, 5.734; 95% CI, 3.007-10.936; p<0.001) were independent predictors of overall survival. CONCLUSION: Adjuvant XELOX and S-1 regimen did not prove anything superior for stage III gastric cancer in this study. But, XELOX had a tendency to be superior to S-1 in stage IIIC gastric cancer after D2 gastrectomy although the difference was not statistically significant. N stage and cycle completion as planned were prognostic factors. PMID- 29040300 TI - Risk-factors for nodular hyperplasia of parathyroid glands in sHPT patients. AB - INTRODUCTION: Nodular hyperplasia of parathyroid glands (PG) is the most probable cause of medical treatment failure in secondary hyperparathyroidism (sHPT). This prospective cohort study is located at the interface of medical and surgical consideration of sHPT treatment options and identifies risk-factors for nodular hyperplasia of PG. MATERIAL AND METHODS: One-hundred-eight resected PG of 27 patients with a broad spectrum of sHPT severity were classified according to the degree of hyperplasia by histopathology. Twenty routinely gathered parameters from medical history, ultrasound findings of PG and laboratory results were analyzed for their influence on nodular hyperplasia of PG by risk-adjusted multivariable binary regression. A prognostic model for non-invasive assessment of PG was developed and used to weight the individual impact of identified risk factors on the probability of nodular hyperplasia of single PG. RESULTS: Independent risk-factors for nodular hyperplasia of single PG were duration of dialysis in years, PG volume in mm3 determined by ultrasound and serum level of parathyroid hormone in pg/mL. Multivariable analyses computed a model with an Area Under the Receiver Operative Curve of 0.857 (95%-CI:0.773-0.941) when predicting nodular hyperplasia of PG. Theoretical assessment of risk-factor interaction revealed that the duration of dialysis had the strongest influence on the probability of nodular hyperplasia of single PG. CONCLUSIONS: The three identified risk-factors (duration of dialysis, PG volume determined by ultrasound and serum level of parathyroid hormone) can be easily gathered in daily routine and could be used to non-invasively assess the probability of nodular hyperplasia of PG. This assessment would benefit from periodically collected data sets of PG changes during the course of sHPT, so that the choice of medical or surgical sHPT treatment could be adjusted more to the naturally changing type of histological PG lesion on an individually adopted basis in the future. PMID- 29040302 TI - An investigation of perceived vehicle speed from a driver's perspective. AB - PURPOSE: Speed estimation of drivers' own vehicles and other vehicles on the road is an important task for drivers and is also crucial to the roadway safety. The objective of the study was to examine the effects of multiple factors such as image scale, speed, road type, driving experience, and gender on the speed perception of drivers' own vehicles. METHODS: Thirty participants consisted of 17 males and 13 females, including 13 without driving experience. All participants estimated the driving speed of 192 5-second video clips, which were selected from naturalistic driving recordings. The recorded driving speeds were evenly distributed across the entire range from 5mph to 65mph. Half of the selected video clips were recorded on wide roads and another half were recorded on comparatively narrow roads. Video clips were played on a large screen, with each clip shown in one of 4 image scales (100%, 75%, 50%, and 38% of the actual field of view in the real world). RESULTS: Speed estimates were most accurate for the smallest image size (38% of the actual field of view). As the image size increased, the driving speed was increasingly underestimated. Participants with driving experience accurately estimated the driving speed on both wide and narrow roads whereas those without driving experience had greater underestimates on wider roads. Speeds were most accurately estimated within the range 25-35mph, but the speeds slower than the range tend to be overestimated and the speeds faster than the range are more likely to be underestimated. While males and females showed the same pattern across speed groups, females have greater estimation errors at the highest and lowest speed groups. Participants without driving experience showed increasing underestimation of speed as driving speed increased whereas participants with driving experience primarily underestimated the highest speeds. CONCLUSIONS: The present study shows the effect of multidimensional influential factors on perceived vehicle speed from drivers' perspective. The results also have implications for driving simulation scenario design, driving simulator setup, and the assessment of speed control in simulated and naturalistic environments. PMID- 29040301 TI - Surveying predictors of late-life longitudinal change in daily activity energy expenditure. AB - BACKGROUND: Total daily energy expenditure (TEE) is composed of resting metabolic rate (RMR), post-prandial thermogenesis and activity energy expenditure (AEE). Higher AEE is strongly associated with lower mortality and physical limitations among older adults, but factors that predict changes in AEE in septu and octogenarians are not clearly understood. OBJECTIVE: To identify factors associated with late-life longitudinal change in AEE. DESIGN: Energy expenditure was re-assessed in 83 participants (average age at baseline, 74.4+/-3.2 years)-an average of 7.5+/-0.54 years since the baseline measure. RMR was measured using indirect calorimetry and the thermic effect of meals was estimated at 10% of TEE. AEE was calculated as: TEE(0.9)-RMR. Participants were categorized into two groups according to the estimated day-to-day precision of the doubly-labeled water technique. Those who were within 10% or increased relative to their initial AEE measurement were categorized as having preserved AEE. Participants who declined greater than 10% of their initial measurement were categorized as having reduced AEE. A variety of socio-demographic, functional and mental factors, body composition, community and personal behaviors, blood measurements and health conditions were evaluated between groups at baseline and changes during follow up. RESULTS: Daily AEE declined 106.61+/-293.25 kcal, which equated to a 14.63+/ 40.57 kcal/d decrease per year. Fifty-nine percent (n = 49) preserved their AEE and 41% (n = 34) declined. Those who demonstrated a decline in AEE were older, had lower walking speed at baseline and showed a higher lean mass loss during follow up. Otherwise, groups were similar for socio-demographic characteristics, body composition, mental and physical function, health conditions and community and personal behaviors at baseline and change in these factors during follow-up. CONCLUSIONS: This study demonstrates that AEE declines through the 8th decade of life and is associated with age, lower walking speed at baseline and lean mass loss. Additionally, there are a significant number of individuals who appear to be resilient to these declines despite having health events that are expected to have a negative impact on their physical activity. PMID- 29040303 TI - Continuing professional development for medical, nursing, and midwifery cadres in Malawi, Tanzania and South Africa: A qualitative evaluation. AB - BACKGROUND: As innovations in the prevention and treatment of HIV and TB advance, continuing professional development (CPD) of health care workers (HCWs) remains a high priority, particularly in sub-Saharan Africa where dual TB/HIV epidemics are compounded by severe HCW shortages. There is further need to examine CPD programs to identify challenges and effective solutions to strengthen HIV/TB-related CPD. METHODS: Qualitative evaluations in Malawi, Tanzania and South Africa (RSA) were conducted using key informant interviews (KIIs) and focus group discussions (FGDs) in each country to identify barriers and enablers of effective HIV/TB related CPD. Key stakeholders represented CPD implementers, regulators, and developers. HCWs were purposively sampled from high disease burden districts; each HCW completed brief, semi-structured questionnaires and participated in a FGD. KII and FGD results were combined into key themes spanning across countries using a grounded theory approach. RESULTS: Fifty-two KIIs were conducted: 17 in Malawi, 19 in Tanzania and 16 in RSA. Eighty-nine HCWs (24 from Malawi, 38 from Tanzania and 27 from RSA) completed questionnaires and participated in FGDs. Primarily, lack of sustainable financial resources and limitations in coordination of CPD result in poor accountability for CPD oversight and reduce CPD quality assurance. Healthcare worker shortages limit CPD opportunities, creating disparities in CPD access. CPD irrelevance and imbalance between HCW identified CPD needs and current programs reduce enthusiasm for CPD. Facility level constraints, including poor infrastructure and weak supply chains, restrict implementation of CPD skills and knowledge. Challenges are more severe in rural settings. CONCLUSION: To address identified gaps, sustainable funding, strong leadership and collaboration at every level are needed to strengthen CPD regulation and accreditation systems; increase CPD accessibility in the workplace; and create enabling environments for CPD implementation. Together, these improvements may improve TB/HIV CPD quality and patient outcomes. PMID- 29040304 TI - Characterization of the Zika virus induced small RNA response in Aedes aegypti cells. AB - RNA interference (RNAi) controls arbovirus infections in mosquitoes. Two different RNAi pathways are involved in antiviral responses: the PIWI-interacting RNA (piRNA) and exogenous short interfering RNA (exo-siRNA) pathways, which are characterized by the production of virus-derived small RNAs of 25-29 and 21 nucleotides, respectively. The exo-siRNA pathway is considered to be the key mosquito antiviral response mechanism. In Aedes aegypti-derived cells, Zika virus (ZIKV)-specific siRNAs were produced and loaded into the exo-siRNA pathway effector protein Argonaute 2 (Ago2); although the knockdown of Ago2 did not enhance virus replication. Enhanced ZIKV replication was observed in a Dcr2 knockout cell line suggesting that the exo-siRNA pathway is implicated in the antiviral response. Although ZIKV-specific piRNA-sized small RNAs were detected, these lacked the characteristic piRNA ping-pong signature motif and were bound to Ago3 but not Piwi5 or Piwi6. Silencing of PIWI proteins indicated that the knockdown of Ago3, Piwi5 or Piwi6 did not enhance ZIKV replication and only Piwi4 displayed antiviral activity. We also report that the expression of ZIKV capsid (C) protein amplified the replication of a reporter alphavirus; although, unlike yellow fever virus C protein, it does not inhibit the exo-siRNA pathway. Our findings elucidate ZIKV-mosquito RNAi interactions that are important for understanding its spread. PMID- 29040305 TI - Switching and optimizing control for coal flotation process based on a hybrid model. AB - Flotation is an important part of coal preparation, and the flotation column is widely applied as efficient flotation equipment. This process is complex and affected by many factors, with the froth depth and reagent dosage being two of the most important and frequently manipulated variables. This paper proposes a new method of switching and optimizing control for the coal flotation process. A hybrid model is built and evaluated using industrial data. First, wavelet analysis and principal component analysis (PCA) are applied for signal pre processing. Second, a control model for optimizing the set point of the froth depth is constructed based on fuzzy control, and a control model is designed to optimize the reagent dosages based on expert system. Finally, the least squares support vector machine (LS-SVM) is used to identify the operating conditions of the flotation process and to select one of the two models (froth depth or reagent dosage) for subsequent operation according to the condition parameters. The hybrid model is developed and evaluated on an industrial coal flotation column and exhibits satisfactory performance. PMID- 29040306 TI - Micheliolide suppresses LPS-induced neuroinflammatory responses. AB - Microglia-involved neuroinflammation is thought to promote brain damage in various neurodegenerative disorders. Thus, inhibition of microglial over activation may have a therapeutic benefit for the treatment of neurodegenerative disorders. Micheliolide (MCL) is a sesquiterpene lactone which inhibits various inflammatory response. However, whether MCL can inhibit neuroinflammation caused by LPS-activated BV2 microglia has not yet been explored. In this study, we demonstrated that treatment of BV2 cells with MCL significantly repressed LPS stimulated nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression, as well as tumor necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6) and nitric oxide (NO) induction. MCL also attenuated mRNA levels of multiple pro inflammatory cytokines and mediators such as iNOS, COX-2, TNF-alpha, IL-6 and IL 1beta. Mechanistic studies revealed that MCL suppressed LPS-stimulated the activation of IkappaBalpha/NF-kappaB pathway and Akt pathway. Moreover, MCL inhibited LPS-induced the activition of c-Jun N-terminal kinase (JNK), p38 MAPK kinase, and extracellular signal-regulated kinases 1/2 (ERK1/2). Meanwhile, MCL markedly promoted antioxidant protein heme oxygenase-1 (HO-1) expression by enhancing NF-E2-related factor 2 (Nrf2) activity. Together, our results imply that MCL may serve as a neuroprotective agent in neuroinflammation-related neurodegenerative disorders. PMID- 29040307 TI - Effects of biomass reducing agent on magnetic properties and phase transformation of Baotou low-grade limonite during magnetizing-roasting. AB - Biomass was used as reducing agent to roast the Baotou low-grade limonite in a high temperature vacuum atmosphere furnace. The effect of calcination temperature, time and ratio of reducing agent on the magnetic properties of calcined ore was studied by VSM. The phase and microstructure changes of limonite before and after calcination were analyzed by XRD and SEM. The results show that in the roasting process the phase transition process of the ferrous material in limonite is first dehydrated at high temperature to formalpha-Fe2O3, and then it is converted into Fe3O4 by the reduction of biomass. With the increase of calcination temperature, the magnetic properties of the calcined ore first increase and then decrease. When the temperature is higher than 650 degrees C, Fe3O4 will become Fe2SiO4, resulting in reduced the magnetic material in calcined ore and the magnetic weakened. The best magnetization effect was obtained when the roasting temperature is 550 degrees C, the percentage of biomass was 15% and the roasting time was 30min. The saturation magnetization can reach 60.13emu.g-1, the recovery of iron was 72% and the grade of iron was 58%. PMID- 29040308 TI - Thermostable proteins bioprocesses: The activity of restriction endonuclease methyltransferase from Thermus thermophilus (RM.TthHB27I) cloned in Escherichia coli is critically affected by the codon composition of the synthetic gene. AB - Obtaining thermostable enzymes (thermozymes) is an important aspect of biotechnology. As thermophiles have adapted their genomes to high temperatures, their cloned genes' expression in mesophiles is problematic. This is mainly due to their high GC content, which leads to the formation of unfavorable secondary mRNA structures and codon usage in Escherichia coli (E. coli). RM.TthHB27I is a member of a family of bifunctional thermozymes, containing a restriction endonuclease (REase) and a methyltransferase (MTase) in a single polypeptide. Thermus thermophilus HB27 (T. thermophilus) produces low amounts of RM.TthHB27I with a unique DNA cleavage specificity. We have previously cloned the wild type (wt) gene into E. coli, which increased the production of RM.TthHB27I over 100 fold. However, its enzymatic activities were extremely low for an ORF expressed under a T7 promoter. We have designed and cloned a fully synthetic tthHB27IRM gene, using a modified 'codon randomization' strategy. Codons with a high GC content and of low occurrence in E. coli were eliminated. We incorporated a stem loop circuit, devised to negatively control the expression of this highly toxic gene by partially hiding the ribosome-binding site (RBS) and START codon in mRNA secondary structures. Despite having optimized 59% of codons, the amount of produced RM.TthHB27I protein was similar for both recombinant tthHB27IRM gene variants. Moreover, the recombinant wt RM.TthHB27I is very unstable, while the RM.TthHB27I resulting from the expression of the synthetic gene exhibited enzymatic activities and stability equal to the native thermozyme isolated from T. thermophilus. Thus, we have developed an efficient purification protocol using the synthetic tthHB27IRM gene variant only. This suggests the effect of co translational folding kinetics, possibly affected by the frequency of translational errors. The availability of active RM.TthHB27I is of practical importance in molecular biotechnology, extending the palette of available REase specificities. PMID- 29040309 TI - Targeted Pth4-expressing cell ablation impairs skeletal mineralization in zebrafish. AB - Skeletal development and mineralization are essential processes driven by the coordinated action of neural signals, circulating molecules and local factors. Our previous studies revealed that the novel neuropeptide Pth4, synthesized by hypothalamic cells, was involved in bone metabolism via phosphate regulation in adult zebrafish. Here, we investigate the role of pth4 during skeletal development using single-cell resolution, two-photon laser ablation of Pth4:eGFP expressing cells and confocal imaging in vivo. Using a stable transgenic Pth4:eGFP zebrafish line, we identify Pth4:eGFP-expressing cells as post-mitotic neurons. After targeted ablation of eGFP-expressing cells in the hypothalamus, the experimental larvae exhibited impaired mineralization of the craniofacial bones whereas cartilage development was normal. In addition to a decrease in pth4 transcript levels, we noted altered expression of phex and entpd5, genes associated with phosphate homeostasis and mineralization, as well as a delay in the expression of osteoblast differentiation markers such as sp7 and sparc. Taken together, these results suggest that Pth4-expressing hypothalamic neurons participate in the regulation of bone metabolism, possibly through regulating phosphate balance during zebrafish development. PMID- 29040310 TI - Accumulation of advanced glycation end products evaluated by skin autofluorescence and incident frailty in older adults from the Bordeaux Three City cohort. AB - AIM: We analyzed the cross-sectional and prospective relationships between the accumulation of advanced glycation end products (AGE), assessed by skin autofluorescence (AF) and frailty and its components. METHODS: A total of 423 participants of the Bordeaux sample of the Three-City study 75 years of age or older in 2009-2010 were included in the cross-sectional analysis. Among them, 255 initially non-frail participants were re-examined 4 years later. Skin AF (arbitrary units (AU)) was measured using the AGE Reader. Frailty was defined using Fried's criteria. Associations were assessed with logistic regression models. RESULTS: Mean skin AF at baseline was 2.81 +/-0.68 AU and 16.8% participants were frail. Adjusted for sociodemographic and health characteristics, skin AF was associated neither with prevalent frailty as a whole (Odds Ratio (OR) = 1.2; 95% Confidence Interval: 0.8-1.9) nor with any of its components. Among 255 non-frail participants, 32 became frail over 4 years. In multivariate analyses, skin AF was not associated with incident frailty as a whole (OR = 1.0; 0.5-2.0) but with a doubled risk of incident exhaustion (OR = 2.0; 1.2-3.6) and low energy expenditure (OR = 2.0; 1.1-3.7). No association was observed with other criteria. CONCLUSION: In French older community-dwellers aged 75 years and over, the accumulation of AGEs evaluated by skin AF was not associated with prevalent or incident frailty but with the 4-year risk of exhaustion and low energy expenditure. Further studies with larger samples are needed to confirm our results. PMID- 29040311 TI - Putative endogenous filovirus VP35-like protein potentially functions as an IFN antagonist but not a polymerase cofactor. AB - It has been proposed that some non-retroviral RNA virus genes are integrated into vertebrate genomes. Endogenous filovirus-like elements (EFLs) have been discovered in some mammalian genomes. However, their potential roles in ebolavirus infection are unclear. A filovirus VP35-like element (mlEFL35) is found in the little brown bat (Myotis lucifugus) genome. Putative mlEFL35-derived protein (mlEFL35p) contains nearly full-length amino acid sequences corresponding to ebolavirus VP35. Ebola virus VP35 has been shown to bind double-stranded RNA, leading to inhibition of type I interferon (IFN) production, and is also known as a viral polymerase cofactor that is essential for viral RNA transcription/replication. In this study, we transiently expressed mlEFL35p in human kidney cells and investigated its biological functions. We first found that mlEFL35p was coimmunoprecipitated with itself and ebolavirus VP35s but not with the viral nucleoprotein. Then the biological functions of mlEFL35p were analyzed by comparing it to ebolavirus VP35s. We found that the expression of mlEFL35p significantly inhibited human IFN-beta promoter activity as well as VP35s. By contrast, expression of mlEFL35p did not support viral RNA transcription/replication and indeed slightly decrease the reporter gene expression in a minigenome assay. These results suggest that mlEFL35p potentially acts as an IFN antagonist but not a polymerase cofactor. PMID- 29040312 TI - End-tidal carbon dioxide measurement in preterm infants with low birth weight. AB - OBJECTIVE: There are conflicting data regarding the use of end-tidal carbon dioxide (PetCO2) measurement in preterm infants. The aim of this study was to evaluate the effects of different dead space to tidal volume ratios (VD/VT) on the correlation between PetCO2 and arterial carbon dioxide pressure (PaCO2) in ventilated preterm infants with respiratory distress syndrome (RDS). METHODS: We enrolled ventilated preterm infants (with assist control mode or synchronous intermittent mandatory mode) with RDS who were treated with surfactant in this prospective study. Simultaneous PetCO2 and PaCO2 data pairs were obtained from ventilated neonates monitored using mainstream capnography. Data obtained before and after surfactant treatment were also analyzed. RESULTS: One-hundred and one PetCO2 and PaCO2 pairs from 34 neonates were analyzed. There was a moderate correlation between PetCO2 and PaCO2 values (r = 0.603, P < 0.01). The correlation was higher in the post-surfactant treatment group (r = 0.786, P < 0.01) than the pre-surfactant treatment group (r = 0.235). The values of PaCO2 and PetCO2 obtained based on the treatment stage of surfactant therapy were 42.4 +/- 8.6 mmHg and 32.6 +/- 7.2 mmHg, respectively, in pre-surfactant treatment group, and 37.8 +/- 10.3 mmHg and 33.7 +/- 9.3 mmHg, respectively, in the post surfactant treatment group. Furthermore, we found a significant decrease in VD/VT in the post-surfactant treatment group when compared to the pre-surfactant treatment group (P = 0.003). CONCLUSIONS: VD/VT decreased significantly after surfactant therapy and the correlation between PetCO2 and PaCO2 was higher after surfactant therapy in preterm infants with RDS. PMID- 29040313 TI - Premature aortic smooth muscle cell differentiation contributes to matrix dysregulation in Marfan Syndrome. AB - Thoracic aortic aneurysm and dissection are life-threatening complications of Marfan syndrome (MFS). Studies of human and mouse aortic samples from late stage MFS demonstrate increased TGF-beta activation/signaling and diffuse matrix changes. However, the role of the aortic smooth muscle cell (SMC) phenotype in early aneurysm formation in MFS has yet to be fully elucidated. As our objective, we investigated whether an altered aortic SMC phenotype plays a role in aneurysm formation in MFS. We describe previously unrecognized concordant findings in the aortas of a murine model of MFS, mgR, during a critical and dynamic phase of early development. Using Western blot, gelatin zymography, and histological analysis, we demonstrated that at postnatal day (PD) 7, before aortic TGF-beta levels are increased, there is elastic fiber fragmentation/disorganization and increased levels of MMP-2 and MMP-9. Compared to wild type (WT) littermates, aortic SMCs in mgR mice express higher levels of contractile proteins suggesting a switch to a more mature contractile phenotype. In addition, tropoelastin levels are decreased in mgR mice, a finding consistent with a premature switch to a contractile phenotype. Proliferation assays indicate a decrease in the proliferation rate of mgR cultured SMCs compared to WT SMCs. KLF4, a regulator of smooth muscle cell phenotype, was decreased in aortic tissue of mgR mice. Finally, overexpression of KLF4 partially reversed this phenotypic change in the Marfan SMCs. This study indicates that an early phenotypic switch appears to be associated with initiation of important metabolic changes in SMCs that contribute to subsequent pathology in MFS. PMID- 29040314 TI - Structure of 311 service requests as a signature of urban location. AB - While urban systems demonstrate high spatial heterogeneity, many urban planning, economic and political decisions heavily rely on a deep understanding of local neighborhood contexts. We show that the structure of 311 Service Requests enables one possible way of building a unique signature of the local urban context, thus being able to serve as a low-cost decision support tool for urban stakeholders. Considering examples of New York City, Boston and Chicago, we demonstrate how 311 Service Requests recorded and categorized by type in each neighborhood can be utilized to generate a meaningful classification of locations across the city, based on distinctive socioeconomic profiles. Moreover, the 311-based classification of urban neighborhoods can present sufficient information to model various socioeconomic features. Finally, we show that these characteristics are capable of predicting future trends in comparative local real estate prices. We demonstrate 311 Service Requests data can be used to monitor and predict socioeconomic performance of urban neighborhoods, allowing urban stakeholders to quantify the impacts of their interventions. PMID- 29040315 TI - Individual and environmental correlates of objectively measured sedentary time in Dutch and Belgian adults. AB - As the detrimental health effects of sedentary behaviour are well established, insight into the individual and environmental factors that influence adults' sedentary behaviour is needed. Most studies to date rely on self-reported measures of sedentary time. Therefore, the aim of the current study was to examine individual and environmental correlates of objectively measured sedentary time in Dutch and Belgian adults. Between March and August 2014, Belgian (n = 133) and Dutch (n = 223) adults, recruited as sub-sample of the SPOTLIGHT survey, wore an ActiGraph accelerometer to provide objectively measured sedentary and moderate to vigorous physical activity time. Participants completed a questionnaire assessing sociodemographic (country of residence, age, gender and educational level), lifestyle (sleep, smoking, sugar-containing beverage consumption, alcohol intake), health (body mass index, self-rated health), work (employment status and type of work), happiness, physical environmental (owning a car, number of screens, socioeconomic status and residential density) and social environmental factors (social network, social cohesion). Univariate and multivariable regression analyses showed that Belgian participants had a lower odds of being sedentary for at least 9 hours per day compared to Dutch participants. Women, older participants and those meeting the WHO recommendation for physical activity were also less likely to sit for 9 hours or more per day. Participants doing (heavy) manual work or being in education, homemaker, unemployed had lower odds of being sedentary for at least 9 hours per day compared to participants with a sitting job. Those with a higher self-reported social network also had lower odds for sedentary time. No associations between physical and other social environmental characteristics and sedentary time were found. Our findings add to the growing evidence of factors associated with prolonged sedentary time in adults. These findings may be used to inform the development of strategies and interventions aimed at reducing sedentary time, and to identify high risk groups. PMID- 29040316 TI - Rising trends and inequalities in cesarean section rates in Pakistan: Evidence from Pakistan Demographic and Health Surveys, 1990-2013. AB - Despite global efforts to improve maternal health, many developing countries including Pakistan have failed to achieve the target of a 75% reduction in maternal deaths by 2015. Addressing socioeconomic inequalities in access to emergency obstetric care is crucial for reducing the maternal mortality rate. This study was done to examine the time trends and socioeconomic inequalities in the utilization of cesarean section (C-section) in Pakistan during 1990-2013. We used data from the Pakistan Demographic and Health Surveys (PDHS) conducted during 1990 to 2013. All these surveys are nationally representative surveys of ever-married women aged 15-49 years with a sample size of 6611, 10,023, and 13,558 women in 1990-1991, 2006-2007, and 2012-2013, respectively, with an overall response rate of over 90%. The unit of analysis for this study was women with their most recent live birth in the five years preceding the surveys. Bivariate analyses and multivariable logistic regression models were employed to investigate the prevalence of cesarean sections according to selected sociodemographic characteristics of women. C-section rates were found to have increased during this period, with an especially significant rise from 2.7% in 1990-1991 to 15.8% in 2012-2013 with lower utilization among the non-educated women (7.5%), compared with the women with higher education (40.3%). C-section rates ranged from 5.5% in the poorest women to 35.3% in the richest women. Only 11.5% of the rural women had a C-section compared to 25.6% of the urban women. A greater likelihood of having a cesarean section was observed in the richest, highly educated, and urban-living women while there was no significant difference observed in cesarean section rates between the private and public sectors in all three surveys. To improve maternal health, routine monitoring and evaluation of the provision of emergency obstetric services are needed to address the underuse of C-section in poor and rural areas and overuse in rich and urban areas. PMID- 29040317 TI - Economic benefits of sharing and redistributing influenza vaccines when shortages occurred. AB - BACKGROUND: Recurrent influenza outbreak has been a concern for government health institutions in Taiwan. Over 10% of the population is infected by influenza viruses every year, and the infection has caused losses to both health and the economy. Approximately three million free vaccine doses are ordered and administered to high-risk populations at the beginning of flu season to control the disease. The government recommends sharing and redistributing vaccine inventories when shortages occur. While this policy intends to increase inventory flexibility, and has been proven as widely valuable, its impact on vaccine availability has not been previously reported. MATERIAL AND METHODS: This study developed an inventory model adapted to vaccination protocols to evaluate government recommended polices under different levels of vaccine production. Demands were uncertain and stratified by ages and locations according to the demographic data in Taiwan. RESULTS: When vaccine supply is sufficient, sharing pediatric vaccine reduced vaccine unavailability by 43% and overstock by 54%, and sharing adult vaccine reduced vaccine unavailability by 9% and overstock by 15%. Redistributing vaccines obtained greater gains for both pediatrics and adults (by 75%). When the vaccine supply is in short, only sharing pediatric vaccine yielded a 48% reduction of unused inventory, while other polices do not improve performances. CONCLUSIONS: When implementing vaccination activities for seasonal influenza intervention, it is important to consider mismatches of demand and vaccine inventory. Our model confirmed that sharing and redistributing vaccines can substantially increase availability and reduce unused vaccines. PMID- 29040318 TI - Rapid reversal of innate immune dysregulation in blood of patients and livers of humanized mice with HCV following DAA therapy. AB - RESULTS: First, in patients receiving two different combinations of DAAs, we found that DAAs induced not only rapid viral clearance, but also a re-setting of antiviral immune responses in the peripheral blood. Specifically, we see a rapid decline in the expression of genes associated with chronic IFN stimulation (IFIT3, USP18, IFIT1) as well as a rapid decline in genes associated with inflammation (IL1beta, CXCL10, CXCL11) in the peripheral blood that precedes the complete removal of virus from the blood. Interestingly, this rapid reversal of innate immune activation was not seen in patients who successfully clear chronic HCV infection using IFN-based therapy. Next, using a novel humanized mouse model (Fah-/-RAG2-/-IL2rgnull-FRG), we assessed the changes that occur in the hepatic tissue following DAA treatment. DAA-mediated rapid HCV clearance resulted in blunting of the expression of proinflammatory responses while functionally restoring the RIG-I/MAVS axis in the liver of humanized mice. CONCLUSIONS: Collectively, our data demonstrate that the rapid viral clearance following treatment with DAAs results in the rebalancing of innate antiviral response in both the peripheral blood and the liver as well as enhanced antiviral signaling within previously infected hepatocytes. PMID- 29040319 TI - Habitat selection and diurnal refugia of gray foxes in southwestern Georgia, USA. AB - Understanding habitat selection of gray foxes (Urocyon cinereoargenteus) is essential to evaluate their potential response to changes in land use and predator communities. Few studies have evaluated temporal habitat selection or explicitly identified habitats used by gray foxes for diurnal refugia. We used GPS collars to obtain location data for 34 gray foxes (20 males and 14 females) from February 2014 to December 2015 to evaluate temporal (seasonal and diel) habitat selection and selection of diurnal refugia in southwestern Georgia, USA. We analyzed habitat selection at 2 levels, selection of a core area within the home range and selection of locations within the home range. Habitat selection was non-random (P < 0.001) but consistent among seasons, between day and night, and between sexes (P > 0.05). Hardwoods, human use (i.e., areas associated with regular human activity such as buildings, lawns, parking areas, etc.), and roads were selected (P < 0.05), whereas pine dominated stands were used randomly (P > 0.05). Selection of habitats for diurnal refugia did not vary seasonally or by sex (P > 0.05), with foxes selecting (P < 0.05) areas near hardwood forests, roads, agriculture, human use, pastures/food plots, and shrub scrub habitats. Gray foxes were observed on the ground while resting, and we found no evidence of gray foxes diurnally resting in trees. Our results suggest that on our study area, gray foxes are an edge species that prefer forests with a hardwood component in areas near human use and roads. PMID- 29040320 TI - Circulating microRNA-375 as biomarker of pancreatic beta cell death and protection of beta cell mass by cytoprotective compounds. AB - OBJECTIVE: Previous studies demonstrated that circulating microRNA-375 (miR-375) is a suitable plasma biomarker for real-time detection of beta cell death. The present study evaluated the use of this biomarker to assess the beta cytoprotective effect of phenylpropenoic acid glucoside (PPAG), which was previously demonstrated to protect beta cells against various types of injury, and of exendin-4, which is an established antidiabetic drug. METHODS: PPAG or exendin-4 were administered in mice treated with streptozotocin (STZ) to acutely induce beta cell death. Beta cell mass and apoptotic death were measured in pancreatic tissue sections. Circulating miR-375 was measured in blood plasma by RT-qPCR. The release of miR-375 was also measured in vitro by MIN-6 beta cells. RESULTS: Administration of STZ resulted in measurable circulating levels of miR 375, a decrease in beta cell mass and increase in frequency of apoptotic beta cells. In vitro, there was a good correlation between miR-375 release and the extent of beta cell death. Treatment of mice with PPAG or exendin-4 significantly attenuated STZ-induced loss of beta cell mass and beta cell apoptosis, and normalized the blood level of miR-375. CONCLUSIONS: These findings show the potential use of serological miR-375 measurements to evaluate the beta cytoprotective effect of (potential) antidiabetic drugs in vivo. PMID- 29040321 TI - Co-delivery of micronized urinary bladder matrix damps regenerative capacity of minced muscle grafts in the treatment of volumetric muscle loss injuries. AB - Minced muscle grafts (MG) promote de novo muscle fiber regeneration and neuromuscular strength recovery in small and large animal models of volumetric muscle loss. The most noteworthy limitation of this approach is its reliance on a finite supply of donor tissue. To address this shortcoming, this study sought to evaluate micronized acellular urinary bladder matrix (UBM) as a scaffolding to promote in vivo expansion of this MG therapy in a rat model. Rats received volumetric muscle loss injuries to the tibialis anterior muscle of their left hind limb which were either left untreated or repaired with minced muscle graft at dosages of 50% and 100% of the defect mass, urinary bladder matrix in isolation, or a with an expansion product consisting of a combination of the two putative therapies in which the minced graft is delivered at a dosage of 50% of the defect mass. Rats survived to 2 and 8 weeks post injury before functional (in vivo neuromuscular strength), histological, morphological, and biochemical analyses were performed. Rats treated with the expansion product exhibited improved neuromuscular function relative to untreated VML after an 8 week time period following injury. This improvement in functional capacity, however, was accompanied with a concomitant reduction in graft mediated regeneration, as evidenced cell lineage tracing enable by a transgenic GFP expressing donor, and a mixed histological outcome indicating coincident fibrous matrix deposition with interspersed islands of nascent muscle fibers. Furthermore, quantitative immunofluorescence and transcriptional analysis following the 2 week time point suggests an exacerbated immune response to the UBM as a possible nidus for the observed suboptimal regenerative outcome. Moving forward, efforts related to the development of a MG expansion product should carefully consider the effects of the host immune response to candidate biomaterials in order to avoid undesirable dysregulation of pro-regenerative cross talk between the immune system and myogenic processes. PMID- 29040323 TI - The influence of alcohol consumption on sickness presenteeism and impaired daily activities. The WIRUS screening study. AB - BACKGROUND: Alcohol use is a global health issue and may influence activity performance in a variety of domains, including the occupational and domestic spheres. The aim of the study was to examine the influence of annual drinking frequency and binge drinking (>=6 units at one occasion) on activity impairments both at work (sickness presenteeism) and outside the workplace. METHODS: Employees (n = 3278), recruited from 14 Norwegian private and public companies, responded to a questionnaire containing questions from the Alcohol Use Disorders Identification Test (AUDIT) and the Workplace Productivity and Activity Impairment questionnaire (WPAI). RESULTS: Multiple hierarchical regression analyses revealed that binge drinking was associated with both sickness presenteeism and impaired daily activities, even after controlling for gender, age, educational level, living status and employment sector. Annual drinking frequency was associated with impaired daily activities, but not sickness presenteeism. CONCLUSIONS: Binge drinking seems to have a stronger influence on activity performance both at work and outside the workplace than drinking frequency. Interventions targeting alcohol consumption should benefit from focusing on binge drinking behavior. PMID- 29040322 TI - Dexamethasone-mediated inhibition of Glioblastoma neurosphere dispersal in an ex vivo organotypic neural assay. AB - Glioblastoma is highly aggressive. Early dispersal of the primary tumor renders localized therapy ineffective. Recurrence always occurs and leads to patient death. Prior studies have shown that dispersal of Glioblastoma can be significantly reduced by Dexamethasone (Dex), a drug currently used to control brain tumor related edema. However, due to high doses and significant side effects, treatment is tapered and discontinued as soon as edema has resolved. Prior analyses of the dispersal inhibitory effects of Dex were performed on tissue culture plastic, or polystyrene filters seeded with normal human astrocytes, conditions which inherently differ from the parenchymal architecture of neuronal tissue. The aim of this study was to utilize an ex-vivo model to examine Dex-mediated inhibition of tumor cell migration from low-passage, human Glioblastoma neurospheres on multiple substrates including mouse retina, and slices of mouse, pig, and human brain. We also determined the lowest possible Dex dose that can inhibit dispersal. Analysis by Two-Factor ANOVA shows that for GBM 2 and GBM-3, Dex treatment significantly reduces dispersal on all tissue types. However, the magnitude of the effect appears to be tissue-type specific. Moreover, there does not appear to be a difference in Dex-mediated inhibition of dispersal between mouse retina, mouse brain and human brain. To estimate the lowest possible dose at which Dex can inhibit dispersal, LogEC50 values were compared by Extra Sum-of-Squares F-test. We show that it is possible to achieve 50% reduction in dispersal with Dex doses ranging from 3.8 x10-8M to 8.0x10-9M for GBM-2, and 4.3x10-8M to 1.8x10-9M for GBM-3, on mouse retina and brain slices, respectively. These doses are 3-30-fold lower than those used to control edema. This study extends our previous in vitro data and identifies the mouse retina as a potential substrate for in vivo studies of GBM dispersal. PMID- 29040324 TI - The centrality of affective instability and identity in Borderline Personality Disorder: Evidence from network analysis. AB - We argue that the series of traits characterizing Borderline Personality Disorder samples do not weigh equally. In this regard, we believe that network approaches employed recently in Personality and Psychopathology research to provide information about the differential relationships among symptoms would be useful to test our claim. To our knowledge, this approach has never been applied to personality disorders. We applied network analysis to the nine Borderline Personality Disorder traits to explore their relationships in two samples drawn from university students and clinical populations (N = 1317 and N = 96, respectively). We used the Fused Graphical Lasso, a technique that allows estimating networks from different populations separately while considering their similarities and differences. Moreover, we examined centrality indices to determine the relative importance of each symptom in each network. The general structure of the two networks was very similar in the two samples, although some differences were detected. Results indicate the centrality of mainly affective instability, identity, and effort to avoid abandonment aspects in Borderline Personality Disorder. Results are consistent with the new DSM Alternative Model for Personality Disorders. We discuss them in terms of implications for therapy. PMID- 29040325 TI - TRIM5alpha SPRY/coiled-coil interactions optimize avid retroviral capsid recognition. AB - Restriction factors are important components of intrinsic cellular defense mechanisms against viral pathogens. TRIM5alpha is a restriction factor that intercepts the incoming capsid cores of retroviruses such as HIV and provides an effective species-specific barrier to retroviral infection. The TRIM5alpha SPRY domain directly binds the capsid with only very weak, millimolar-level affinity, and productive capsid recognition therefore requires both TRIM5alpha dimerization and assembly of the dimers into a multivalent hexagonal lattice to promote avid binding. Here, we explore the important unresolved question of whether the SPRY domains are flexibly linked to the TRIM lattice or more precisely positioned to maximize avidity. Biochemical and biophysical experiments indicate that the linker segment connecting the SPRY domain to the coiled-coil domain adopts an alpha-helical fold, and that this helical portion mediates interactions between the two domains. Targeted mutations were generated to disrupt the putative packing interface without affecting dimerization or higher-order assembly, and we identified mutant proteins that were nevertheless deficient in capsid binding in vitro and restriction activity in cells. Our studies therefore support a model wherein substantial avidity gains during assembly-mediated capsid recognition by TRIM5alpha come in part from tailored spacing of tethered recognition domains. PMID- 29040326 TI - Mycobacterium tuberculosis infection modulates adipose tissue biology. AB - Mycobacterium tuberculosis (Mtb) primarily resides in the lung but can also persist in extrapulmonary sites. Macrophages are considered the prime cellular habitat in all tissues. Here we demonstrate that Mtb resides inside adipocytes of fat tissue where it expresses stress-related genes. Moreover, perigonadal fat of Mtb-infected mice disseminated the infection when transferred to uninfected animals. Adipose tissue harbors leukocytes in addition to adipocytes and other cell types and we observed that Mtb infection induces changes in adipose tissue biology depending on stage of infection. Mice infected via aerosol showed infiltration of inducible nitric oxide synthase (iNOS) or arginase 1 (Arg1) negative F4/80+ cells, despite recruitment of CD3+, CD4+ and CD8+ T cells. Gene expression analysis of adipose tissue of aerosol Mtb-infected mice provided evidence for upregulated expression of genes associated with T cells and NK cells at 28 days post-infection. Strikingly, IFN-gamma-producing NK cells and Mtb specific CD8+ T cells were identified in perigonadal fat, specifically CD8+CD44 CD69+ and CD8+CD44-CD103+ subpopulations. Gene expression analysis of these cells revealed that they expressed IFN-gamma and the lectin-like receptor Klrg1 and down-regulated CD27 and CD62L, consistent with an effector phenotype of Mtb specific CD8+ T cells. Sorted NK cells expressed higher abundance of Klrg1 upon infection, as well. Our results reveal the ability of Mtb to persist in adipose tissue in a stressed state, and that NK cells and Mtb-specific CD8+ T cells infiltrate infected adipose tissue where they produce IFN-gamma and assume an effector phenotype. We conclude that adipose tissue is a potential niche for Mtb and that due to infection CD8+ T cells and NK cells are attracted to this tissue. PMID- 29040327 TI - Epizootic to enzootic transition of a fungal disease in tropical Andean frogs: Are surviving species still susceptible? AB - The fungal pathogen Batrachochytrium dendrobatidis (Bd), which causes the disease chytridiomycosis, has been linked to catastrophic amphibian declines throughout the world. Amphibians differ in their vulnerability to chytridiomycosis; some species experience epizootics followed by collapse while others exhibit stable host/pathogen dynamics where most amphibian hosts survive in the presence of Bd (e.g., in the enzootic state). Little is known about the factors that drive the transition between the two disease states within a community, or whether populations of species that survived the initial epizootic are stable, yet this information is essential for conservation and theory. Our study focuses on a diverse Peruvian amphibian community that experienced a Bd-caused collapse. We explore host/Bd dynamics of eight surviving species a decade after the mass extinction by using population level disease metrics and Bd-susceptibility trials. We found that three of the eight species continue to be susceptible to Bd, and that their populations are declining. Only one species is growing in numbers and it was non-susceptible in our trials. Our study suggests that some species remain vulnerable to Bd and exhibit ongoing population declines in enzootic systems where Bd-host dynamics are assumed to be stable. PMID- 29040328 TI - Integrin beta 1 inhibition alleviates the chronic hyperproliferative dermatitis phenotype of SHARPIN-deficient mice. AB - SHARPIN (Shank-Associated RH Domain-Interacting Protein) is a component of the linear ubiquitin chain assembly complex (LUBAC), which enhances TNF-induced NF kappaB activity. SHARPIN-deficient (Sharpincpdm/cpdm) mice display multi-organ inflammation and chronic proliferative dermatitis (cpdm) due to TNF-induced keratinocyte apoptosis. In cells, SHARPIN also inhibits integrins independently of LUBAC, but it has remained enigmatic whether elevated integrin activity levels in the dermis of Sharpincpdm/cpdm mice is due to increased integrin activity or is secondary to inflammation. In addition, the functional contribution of increased integrin activation to the Sharpincpdm/cpdm phenotype has not been investigated. Here, we find increased integrin activity in keratinocytes from Tnfr1-/- Sharpincpdm/cpdm double knockout mice, which do not display chronic inflammation or proliferative dermatitis, thus suggesting that SHARPIN indeed acts as an integrin inhibitor in vivo. In addition, we present evidence for a functional contribution of integrin activity to the Sharpincpdm/cpdm skin phenotype. Treatment with an integrin beta 1 function blocking antibody reduced epidermal hyperproliferation and epidermal thickness in Sharpincpdm/cpdm mice. Our data indicate that, while TNF-induced cell death triggers the chronic inflammation and proliferative dermatitis, absence of SHARPIN-dependent integrin inhibition exacerbates the epidermal hyperproliferation in Sharpincpdm/cpdm mice. PMID- 29040329 TI - Sexual homicides in South Africa: A national cross-sectional epidemiological study of adult women and children. AB - METHODS: We conducted a retrospective national mortuary based study to identify all adult female homicides (18 years and older) and all child homicides (boys and girls < 18 years) in 2009 in a randomly selected, proportionate sample of mortuaries. Victim, perpetrator and crime data were collected in three processes: from the mortuary register, the autopsy report and from police with the identification of sexual homicides validated across the data collection processes. FINDINGS: Among the 2670 (95% CI: 2311-2979) adult women killed in 2009, 494 (95% CI: 406-574) were identified as sexual homicides which was 19.8% (95% CI: 17.6-22.0) of all adult female homicides and among 1277 (95% CI: 1091 1462) children killed in SA, sexual homicides were found in 104 (95% CI: 77-132) of the child homicides which was 8.7% (95% CI: 10.9-11.2%) of these murders. Strangulation was the most common cause of death for both children and adult females. A distinct age and sex pattern was found among children with only 1% boy child death identified as a sexual homicide and 92% of all the child sexual homicides were among girls. Strangulation was the most common manner of death among children (35.5%) and perpetrators were seldom strangers. However, no difference in the proportion of convictions between the sexual homicides and non sexual homicides were found for both adult females and children. CONCLUSION: Rape homicide is not a rare event in South Africa, with one in five female homicides and nearly one in ten child homicides identified with an associated sexual crime. These high prevalences are amongst the highest levels reported in the literature with our study among the few reporting on the epidemiology of child sexual homicide. Reducing mortality is an important policy goal for South Africa and for the rest of the world and the prevention of female and child homicide is an important part of attaining this goal. PMID- 29040330 TI - The association between toe grip strength and osteoarthritis of the knee in Japanese women: A multicenter cross-sectional study. AB - We evaluated the relationship between altered foot function and knee osteoarthritis through a specific comparison of toe grip strength in older women with and without knee osteoarthritis. Participants were 120 women with knee osteoarthritis (OA group) and 108 healthy community-dwelling women with no history of knee pain and lower limb surgery (control group). The following factors and outcome variables were included in our analysis: measured toe grip strength, isometric knee extension strength, the timed Up-and-Go, and the WOMAC scale. Between-group differences were compared using unpaired t-tests for descriptive characteristics and outcome measures. Pearson's correlation coefficients between toe grip strength and age, body mass index, and other outcome measures were calculated. Multiple logistic regression analysis was used to evaluate the independence of toe grip strength and knee osteoarthritis. Compared to the control group, participants in the OA group were older, heavier, and had a higher body mass index. Toe grip strength and isometric knee extension strength were lower and the timed Up-and-Go longer for the OA group than the control group. Toe grip strength was correlated with age negatively and isometric knee extension strength positively in the OA group and to age and the timed Up and-Go negatively, and isometric knee extension strength positively in the control group. Multiple logistic regression analysis revealed that body mass index, isometric knee extensor strength, and toe grip strength were independently associated with knee osteoarthritis. Our findings indicate a probable association between altered forefoot function and the incidence or progression of knee osteoarthritis. Increasing toe grip strength might provide a practical intervention for patients with knee osteoarthritis. PMID- 29040332 TI - The developmental programme for genesis of the entire kidney is recapitulated in Wilms tumour. AB - Wilms tumour (WT) is an embryonal tumour that recapitulates kidney development. The normal kidney is formed from two distinct embryological origins: the metanephric mesenchyme (MM) and the ureteric bud (UB). It is generally accepted that WT arises from precursor cells in the MM; however whether UB-equivalent structures participate in tumorigenesis is uncertain. To address the question of the involvement of UB, we assessed 55 Wilms tumours for the molecular features of MM and UB using gene expression profiling, immunohistochemsitry and immunofluorescence. Expression profiling primarily based on the Genitourinary Molecular Anatomy Project data identified molecular signatures of the UB and collecting duct as well as those of the proximal and distal tubules in the triphasic histology group. We performed immunolabeling for fetal kidneys and WTs. We focused on a central epithelial blastema pattern which is the characteristic of triphasic histology characterized by UB-like epithelial structures surrounded by MM and MM-derived epithelial structures, evoking the induction/aggregation phase of the developing kidney. The UB-like epithelial structures and surrounding MM and epithelial structures resembling early glomerular epithelium, proximal and distal tubules showed similar expression patterns to those of the developing kidney. These observations indicate WTs can arise from a precursor cell capable of generating the entire kidney, such as the cells of the intermediate mesoderm from which both the MM and UB are derived. Moreover, this provides an explanation for the variable histological features of mesenchymal to epithelial differentiation seen in WT. PMID- 29040331 TI - Primary care models for treating opioid use disorders: What actually works? A systematic review. AB - BACKGROUND: Primary care-based models for Medication-Assisted Treatment (MAT) have been shown to reduce mortality for Opioid Use Disorder (OUD) and have equivalent efficacy to MAT in specialty substance treatment facilities. OBJECTIVE: The objective of this study is to systematically analyze current evidence-based, primary care OUD MAT interventions and identify program structures and processes associated with improved patient outcomes in order to guide future policy and implementation in primary care settings. DATA SOURCES: PubMed, EMBASE, CINAHL, and PsychInfo. METHODS: We included randomized controlled or quasi experimental trials and observational studies evaluating OUD treatment in primary care settings treating adult patient populations and assessed structural domains using an established systems engineering framework. RESULTS: We included 35 interventions (10 RCTs and 25 quasi-experimental interventions) that all tested MAT, buprenorphine or methadone, in primary care settings across 8 countries. Most included interventions used joint multi-disciplinary (specialty addiction services combined with primary care) and coordinated care by physician and non-physician provider delivery models to provide MAT. Despite large variability in reported patient outcomes, processes, and tasks/tools used, similar key design factors arose among successful programs including integrated clinical teams with support staff who were often advanced practice clinicians (nurses and pharmacists) as clinical care managers, incorporating patient "agreements," and using home inductions to make treatment more convenient for patients and providers. CONCLUSIONS: The findings suggest that multidisciplinary and coordinated care delivery models are an effective strategy to implement OUD treatment and increase MAT access in primary care, but research directly comparing specific structures and processes of care models is still needed. PMID- 29040333 TI - The role of parental education in child disability in China from 1987 to 2006. AB - This paper aimed to investigate the role of parental education in child disability in China. We used nationally representative data from China's National Sample Survey on Disability, iterated twice, in 1987 and 2006, with data of 764,718 children aged 0-14 years. Logit models were used for statistical analysis. Results showed that the prevalence of child disability was significantly associated with each parent's education. Maternal education was more important than paternal education in child disability in both surveys. The analysis of marginal effect indicated a one-year increase in maternal and paternal schooling led to an average decrease of 0.121% and 0.091% in the probability of child disability in 1987, and 19 years later, these figures had dwindled to 0.091% and 0.072%, respectively. PMID- 29040334 TI - Advanced maternal age and adverse pregnancy outcomes: A systematic review and meta-analysis. AB - BACKGROUND: Advanced maternal age (AMA; >=35 years) is an increasing trend and is reported to be associated with various pregnancy complications. OBJECTIVE: To determine the risk of stillbirth and other adverse pregnancy outcomes in women of AMA. SEARCH STRATEGY: Embase, Medline (Ovid), Cochrane Database of Systematic Reviews, ClinicalTrials.gov, LILACS and conference proceedings were searched from >=2000. SELECTION CRITERIA: Cohort and case-control studies reporting data on one or more co-primary outcomes (stillbirth or fetal growth restriction (FGR)) and/or secondary outcomes in mothers >=35 years and <35 years. DATA COLLECTION AND ANALYSIS: The effect of age on pregnancy outcome was investigated by random effects meta-analysis and meta-regression. Stillbirth rates were correlated to rates of maternal diabetes, obesity, hypertension and use of assisted reproductive therapies (ART). MAIN RESULTS: Out of 1940 identified titles; 63 cohort studies and 12 case-control studies were included in the meta-analysis. AMA increased the risk of stillbirth (OR 1.75, 95%CI 1.62 to 1.89) with a population attributable risk of 4.7%. Similar trends were seen for risks of FGR, neonatal death, NICU unit admission restriction and GDM. The relationship between AMA and stillbirth was not related to maternal morbidity or ART. CONCLUSIONS: Stillbirth risk increases with increasing maternal age. This is not wholly explained by maternal co-morbidities and use of ART. We propose that placental dysfunction may mediate adverse pregnancy outcome in AMA. Further prospective studies are needed to directly test this hypothesis. PMID- 29040336 TI - Characteristics of private partners in Chiranjeevi Yojana, a public-private partnership to promote institutional births in Gujarat, India - Lessons for universal health coverage. AB - BACKGROUND: The Chiranjeevi Yojana (CY) is a Public-Private-Partnership between the state and private obstetricians in Gujarat, India, since 2007. The state pays for institutional births of the most vulnerable households (below-poverty-line and tribal) in private hospitals. An innovative remuneration package has been designed to disincentivise unnecessary cesareans. This study examines characteristics of private facilities which participated in the program. METHODS: We conducted a cross-sectional survey of all facilities which had conducted any births between June 2012 and April 2013 in three districts. We identified 111 private and 47 public facilities. Ninety of the 111 private facilities did caesarean sections in the last three months and were eligible to participate in the CY program. Of these, 40 (44%) participated in the CY program. We conducted descriptive and bivariate analyses followed by a Poisson regression model to estimate prevalence ratios of facility characteristics that predicted participation. RESULTS: We found that facilities participating in the CY program had a significantly higher likelihood of being general facilities (PR 1.9, 95% CI 1.3-2.9), or conducting lower proportion of cesarean births (PR 2.1, 95% CI 1.2 3.5) or having obstetricians new in private practice (PR 1.9, 95% CI 1.2-3.1) or being less expensive (PR 1.8, 95% CI 1.1-3.0). But none of these factors retained significance in a multi variable model. CONCLUSION: Private obstetricians who participate in the CY program tend to be new to private practice, provide general services, conduct fewer caesareans and are also less expensive. This is advantageous to the PPP and widens the target beneficiary groups that can be serviced by the PPP. The state should design remuneration packages with the aim of attracting relatively new obstetricians to set up practices in more remote areas. It is possible that the CY remuneration package design is effective in keeping caesarean rates in check, and needs to be studied further. PMID- 29040335 TI - Is patient empowerment the key to promote adherence? A systematic review of the relationship between self-efficacy, health locus of control and medication adherence. AB - BACKGROUND: Current health policies emphasize the need for an equitable doctor patient relationship, and this requires a certain level of patient empowerment. However, a systematic review of the empirical evidence on how empowerment affects medication adherence-the extent to which patients follow the physician's prescription of medication intake-is still missing. The goal of this systematic review is to sum up current state-of-the-art knowledge concerning the relationship between patient empowerment and medication adherence across medical conditions. As our conceptualization defines health locus of control and self efficacy as being crucial components of empowerment, we explored the relationship between these two constructs and medication adherence. METHODS: Relevant studies were retrieved through a comprehensive search of Medline and PsychINFO databases (1967 to 2017). In total, 4903 publications were identified. After applying inclusion and exclusion criteria and quality assessment, 154 articles were deemed relevant. Peer-reviewed articles, written in English, addressing the relationship between empowerment (predictor) and medication adherence (outcome) were included. FINDINGS: High levels of self-efficacy and Internal Health Locus of Control are consistently found to promote medication adherence. External control dimensions were found to have mainly negative (Chance and God attributed control beliefs) or ambiguous (Powerful others attributed control beliefs) links to adherence, except for Doctor Health Locus of Control which had a positive association with medication adherence. To fully capture how health locus of control dimensions influence medication adherence, the interaction between the sub-dimensions and the attitudinal symmetry between the doctor and patient, regarding the patient's control over the disease management, can provide promising new alternatives. DISCUSSION: The beneficial effect of patients' high internal and concurrent physician-attributed control beliefs suggests that a so-called "joint empowerment" approach can be suitable in order to foster medication adherence, enabling us to address the question of control as a versatile component in the doctor-patient relationship. PMID- 29040338 TI - Classifying dermoscopic patterns of naevi in a case-control study of melanoma. AB - Changes in dermoscopic patterns of naevi may be associated with melanoma; however, there is no consensus on which dermoscopic classification system is optimal. To determine whether different classification systems give comparable results and can be combined for analysis, we applied two systems to a case control study of melanoma with 1037 participants: 573 classified using a "1/3 major feature" system, 464 classified based on rules of appearance, and 263 classified with both criteria. There was strong correlation for non-specific (Spearman R = 0.96) and reticular (Spearman R = 0.82) naevi, with a slight bias for globular naevi with the rules of appearance system. Inter-observer reliability was high for the rules of appearance system, particularly for reticular naevi (Pearson >0.97). We show that different classification systems for naevi can be combined for data analysis, and describe a method for determining what adjustments may need to be applied to combine data sets. PMID- 29040337 TI - A comparison of extended spectrum beta-lactamase producing Escherichia coli from clinical, recreational water and wastewater samples associated in time and location. AB - Extended spectrum beta-lactamase producing Escherichia coli (ESBL-EC) are excreted via effluents and sewage into the environment where they can re contaminate humans and animals. The aim of this observational study was to detect and quantify ESBL-EC in recreational water and wastewater, and perform a genetic and phenotypic comparative analysis of the environmental strains with geographically associated human urinary ESBL-EC. Recreational fresh- and saltwater samples from four different beaches and wastewater samples from a nearby sewage plant were filtered and cultured on differential and ESBL-selective media. After antimicrobial susceptibility testing and multi-locus variable number of tandem repeats assay (MLVA), selected ESBL-EC strains from recreational water were characterized by whole genome sequencing (WGS) and compared to wastewater and human urine isolates from people living in the same area. We detected ESBL-EC in recreational water samples on 8/20 occasions (40%), representing all sites. The ratio of ESBL-EC to total number of E. coli colony forming units varied from 0 to 3.8%. ESBL-EC were present in all wastewater samples in ratios of 0.56 0.75%. ST131 was most prevalent in urine and wastewater samples, while ST10 dominated in water samples. Eight STs and identical ESBL-EC MLVA-types were detected in all compartments. Clinical ESBL-EC isolates were more likely to be multidrug-resistant (p<0.001). This study confirms that ESBL-EC, including those that are capable of causing human infection, are present in recreational waters where there is a potential for human exposure and subsequent gut colonisation and infection in bathers. Multidrug-resistant E. coli strains are present in urban aquatic environments even in countries where antibiotic consumption in both humans and animals is highly restricted. PMID- 29040340 TI - Measuring local depletion of terrestrial game vertebrates by central-place hunters in rural Amazonia. AB - The degree to which terrestrial vertebrate populations are depleted in tropical forests occupied by human communities has been the subject of an intense polarising debate that has important conservation implications. Conservation ecologists and practitioners are divided over the extent to which community-based subsistence offtake is compatible with ecologically functional populations of tropical forest game species. To quantify depletion envelopes of forest vertebrates around human communities, we deployed a total of 383 camera trap stations and 78 quantitative interviews to survey the peri-community areas controlled by 60 semi-subsistence communities over a combined area of over 3.2 million hectares in the Medio Jurua and Uatuma regions of Central-Western Brazilian Amazonia. Our results largely conform with prior evidence that hunting large-bodied vertebrates reduces wildlife populations near settlements, such that they are only found at a distance to settlements where they are hunted less frequently. Camera trap data suggest that a select few harvest-sensitive species, including lowland tapir, are either repelled or depleted by human communities. Nocturnal and cathemeral species were detected relatively more frequently in disturbed areas close to communities, but individual species did not necessarily shift their activity patterns. Group biomass of all species was depressed in the wider neighbourhood of urban areas rather than communities. Interview data suggest that species traits, especially group size and body mass, mediate these relationships. Large-bodied, large-group-living species are detected farther from communities as reported by experienced informants. Long-established communities in our study regions have not "emptied" the surrounding forest. Low human population density and low hunting offtake due to abundant sources of alternative aquatic protein, suggest that these communities represent a best-case scenario for sustainable hunting of wildlife for food, thereby providing a conservative assessment of game depletion. Given this 'best-case' camera trap and interview based evidence for hunting depletion, regions with higher human population densities, external trade in wildlife and limited access to alternative protein will likely exhibit more severe depletion. PMID- 29040339 TI - Protein tyrosine phosphatase PTPN22 is dispensable for dendritic cell antigen processing and promotion of T-cell activation by dendritic cells. AB - The PTPN22R620W single nucleotide polymorphism increases the risk of developing multiple autoimmune diseases including type 1 diabetes, rheumatoid arthritis and lupus. PTPN22 is highly expressed in antigen presenting cells (APCs) where the expression of the murine disease associated variant orthologue (Ptpn22R619W) is reported to dysregulate pattern recognition receptor signalling in dendritic cells (DCs) and promote T-cell proliferation. Because T-cell activation is dependent on DC antigen uptake, degradation and presentation, we analysed the efficiency of these functions in splenic and GM-CSF bone marrow derived DC from wild type (WT), Ptpn22-/- or Ptpn22R619W mutant mice. Results indicated no differential ability of DCs to uptake antigen via macropinocytosis or receptor mediated endocytosis. Antigen degradation and presentation was also equal as was WT T-cell conjugate formation and subsequent T-cell proliferation. Despite the likely presence of multiple phosphatase-regulated pathways in the antigen uptake, processing and presentation pathways that we investigated, we observed that Ptpn22 and the R619W autoimmune associated variant were dispensable. These important findings indicate that under non-inflammatory conditions there is no requirement for Ptpn22 in DC dependent antigen uptake and T-cell activation. Our findings reveal that perturbations in antigen uptake and processing, a fundamental pathway determining adaptive immune responses, are unlikely to provide a mechanism for the risk associated with the Ptpn22 autoimmune associated polymorphism. PMID- 29040343 TI - Spherical nematic shells with a prolate ellipsoidal core. AB - Liquid crystal shells have attracted considerable attention in recent years. In such systems, a combination of confinement and curvature generates topological defect structures that do not exist in the bulk. Past studies, however, have largely focused on perfectly spherical shells, and little attention has been devoted to the impact of core geometry on the configuration and arrangement of topological defects. In this work, a microfluidic glass capillary device is used to encapsulate spherical and prolate ellipsoidal particles in nematic liquid crystal (LC) droplets dispersed in aqueous media. Our experimental studies show that, when trapped inside a radial LC droplet, spherical particles with both homeotropic and planar anchoring are highly localized at the droplet's center. While the radial configuration of the LC droplets is not altered by a homeotropic particle, polystyrene particles with strong planar anchoring disturb the radial ordering, leading to a twisted structure. Experiments indicate that off-center particle positions can also arise, in which defects are displaced towards the vicinity of the droplet's surface. In contrast, when prolate ellipsoidal particles are encapsulated in a thick radial LC shell, the minimum free energy corresponds to configurations where the particle is positioned at the droplet center. In this case, defects arise at the two ends of the prolate ellipsoid, where the curvature of the particle is maximal, leading to the formation of peculiar hybrid and twisted structures. PMID- 29040342 TI - Area-level poverty, race/ethnicity & dialysis star ratings. AB - The Centers for Medicare and Medicaid Services recently released a five star rating system as part of 'Dialysis Facility Compare' to help patients identify and choose high performing clinics in the US. Eight dialysis-related measures determine ratings. Little is known about the association between surrounding community sociodemographic characteristics and star ratings. Using data from the U.S. Census and over 6000 dialysis clinics across the country, we examined the association between dialysis clinic star ratings and characteristics of the local population: 1) proportion of population below the federal poverty level (FPL); 2) proportion of black individuals; and 3) proportion of Hispanic individuals, by correlation and regression analyses. Secondary analyses with Quality Incentive Program (QIP) scores and population characteristics were also performed. We observed a negligible correlation between star ratings and the proportion of local individuals below FPL; Spearman coefficient, R = -0.09 (p<0.0001), and a stronger correlation between star ratings and the proportion of black individuals; R = -0.21 (p<0.0001). Ordered logistic regression analyses yielded adjusted odds ratio of 0.91 (95% confidence interval [0.80-1.30], p = 0.12) and 0.55 ([0.48-0.63], p<0.0001) for high vs. low level of proportion below FPL and proportion of black individuals, respectively. In contrast, a near-zero correlation was observed between star ratings and the proportion of Hispanic individuals. Correlations varied substantially by country region, clinic profit status and clinic size. Analyses using clinic QIP scores provided similar results. Sociodemographic characteristics of the surrounding community, factors typically outside of providers' direct control, have varying levels of association with clinic dialysis star ratings. PMID- 29040341 TI - Predictors of mortality and ICD shock therapy in primary prophylactic ICD patients-A systematic review and meta-analysis. AB - BACKGROUND: There is evidence that the benefit of a primary prophylactic ICD therapy is not equal in all patients. PURPOSE: To evaluate risk factors of appropriate shocks and all- cause mortality in patients with a primary prophylactic ICD regarding contemporary studies. DATA SOURCE: PubMed, LIVIVO, Cochrane CENTRAL between 2010 and 2016. STUDY SELECTION: Studies were eligible if at least one of the endpoints of interest were reported. DATA EXTRACTION: All abstracts were independently reviewed by at least two authors. The full text of all selected studies was then analysed in detail. DATA SYNTHESIS: Our search strategy retrieved 608 abstracts. After exclusion of unsuitable studies, 36 papers with a total patient number of 47282 were included in our analysis. All cause mortality was significantly associated with increasing age (HR 1.41, CI 1.29-1.53), left ventricular function (LVEF; HR 1.21, CI 1.14-1.29), ischemic cardiomyopathy (ICM; HR 1.37, CI 1.14-1.66) and co-morbidities such as impaired renal function (HR 2.30, CI 1.97-2.69). Although, younger age (HR 0.96, CI 0.85 1.09), impaired LVEF (HR 1.26, CI 0.89-1.78) and ischemic cardiomyopathy (HR 2.22, CI 0.83-5.93) were associated with a higher risk of appropriate shocks, none of these factors reached statistical significance. LIMITATIONS: Individual patient data were not available for most studies. CONCLUSION: In this meta analysis of contemporary clinical studies, all-cause mortality is predicted by a variety of clinical characteristics including LVEF. On the other hand, the risk of appropriate shocks might be associated with impaired LVEF and ischemic cardiomyopathy. Further prospective studies are required to verify risk factors for appropriate shocks other than LVEF to help select appropriate patients for primary prophylactic ICD-therapy. PMID- 29040344 TI - Dilemmas for guardians of advanced dementia patients regarding tube feeding. AB - Background: advanced dementia is an incurable illness, its last stage marked by inability to eat. Tube feeding was deemed a helpful solution at this stage, but in recent years its inefficiency has been proved, and it is no longer practiced in many countries around the world. In Israel, however, the procedure is still accepted. In the gastroenterology department at the Bnai Zion Medical Center, a serious interaction is ongoing with patients' legal guardians, where detailed information is given about the inefficiency of the tube procedure. Nevertheless, the great majority of guardians choose to have it performed. Purpose: to probe the considerations underlying the decision for gastrostomy, despite the data and the recommendations. Method: qualitative research, including participant observation at the clinic and in-depth interviews with guardians. Findings: the families of most patients did not discuss end-of-life issues with them. The overwhelming preference for using the technology was interpreted as life-saving, in contrast to comfort feeding, which was deemed euthanasia. The reasons given for the decision to tube feed were drawn from a range of outlooks: religion, the patient's earlier survival capacity, and pragmatic considerations involving relations with nursing home staff. Conclusion: study of the decision-making process of advanced dementia patients' guardians sheds light on the layers of meaning of the Israeli discourse regarding end-of-life issues. PMID- 29040345 TI - Eight-Year Safety Data for Round and Anatomical Silicone Gel Breast Implants. AB - Background: The safety and efficacy of all medical devices, including breast implants, is important and consistent performance is best shown by undertaking long-term clinical and vigilance studies. Local complications such as capsular contracture and rupture are risks often associated with breast implant surgery. Objectives: The authors investigate and evaluate the safety and performance of Eurosilicone's (Eurosilicone S.A.S, Apt Cedex, France) Cristalline Paragel breast implants at 8 years postimplantation. Methods: In this prospective clinical study, 995 Eurosilicone textured cohesive Cristalline Paragel mammary implants were implanted in 526 women undergoing augmentation and reconstructive surgery at 17 centers across France. Complications were recorded at 3 months and annually thereafter for 8 years. Descriptive statistics were used and key complications were analysed using the Kaplan-Meier method. Results: Capsular contracture was reported in 8.5% of implants across all cohorts through 8 years. The Kaplan-Meier risk of capsular contracture (Baker Grade III/IV) per implant was 8.4% in the primary augmentation cohort and 18.0% in the primary reconstruction cohort. Eight implant ruptures were identified by surgeon examination during this follow-up period. The Kaplan-Meier risk of rupture occurring within 8 years postimplantation, across all cohorts, was 1.4% per patient and 0.9% per implant. Actual implant removal rate (explantation/exchange) was 6.0% and 13.8% for primary augmentation and primary reconstruction, respectively. Actual rates of local complications including infection and seroma were low with risk rates of 0.6% and 0.2% by subject. Conclusions: This multicenter clinical study involving Eurosilicone's silicone gel breast implants in both round and shaped profiles demonstrates an excellent safety and efficacy profile through 8 years. PMID- 29040346 TI - Heterogeneity in Body Contouring Outcomes Based Research: The Pittsburgh Body Contouring Complication Reporting System. AB - Background: Body contouring complications after massive weight loss (MWL) vary significantly in frequency and type. Currently, no standardized recommendations exist regarding which complications are most important to report. Objectives: We aim to provide a guideline for complication reporting in the body contouring literature. The Pittsburgh Body Contouring Complication Reporting System (PBCCRS) will aid in risk stratification of body contouring procedures and will decrease under-, over-, and nonreporting of complications. Methods: The authors reviewed the literature for the terms "body contouring," "MWL," and "complications." Elimination criteria included: non-English language, case report, meta-analysis, outpatient, non-MWL, unclear demographics, N <30 and lack of numeric results. Data were analyzed in 2 groups: truncal contouring and extremity contouring. Results: Eighty-nine papers were reviewed and 21 met inclusion criteria. The weighted mean rates as percentages for complications in the extremity group were: dehiscence (29.0), seroma (18.6), scarring (14.9), infection (8.8), lymphedema (7.8), hematoma (3.5), necrosis (1.9), deep venous thrombosis (DVT) or pulmonary embolism (PE) (0), and death (0). In the truncal group, weighted mean complication rates as percentages were: dehiscence (15.4), seroma (13.1), scarring (2.9), infection (9.4), lymphedema (1.3), hematoma (6.4), necrosis (7.2), DVT/PE (1.5), and death (0.6). Lymphedema was seldom reported, and suture extrusion was not reported in any selected papers. Weighted mean rates of DVT/PE in the extremity vs truncal contouring groups were significantly different. Differences in rates of scarring, lymphedema, and hematoma rates neared significance. Conclusions: Heterogeneity amongst selected studies is explained by variability in how complications are defined. The Pittsburgh Body Contouring Complication Reporting System provides suggested recommendations on complication reporting in massive weight loss body contouring surgery. PMID- 29040347 TI - Frailty index as a predictor of mortality: a systematic review and meta-analysis. AB - Background: two popular operational definitions of frailty, the frailty phenotype and Frailty index (FI), are based on different theories. Although FI was shown to be superior in predicting mortality to the frailty phenotype, no meta-analysis on mortality risk according to FI has been found in the literature. Methods: an electronic systematic literature search was conducted in August 2016 using four databases (Embase, Medline, CINAHL and PsycINFO) for prospective cohort studies published in 2000 or later, examining the mortality risk according to frailty measured by FI. A meta-analysis was performed to synthesise pooled mortality risk estimates. Results: of 2,617 studies identified by the systematic review, 18 cohorts from 19 studies were included. Thirteen cohorts showed hazard ratios (HRs) per 0.01 increase in FI, six cohorts showed HRs per 0.1 increase in FI and two cohorts each showed odds ratios (ORs) per 0.01 and 0.1 increase in FI, respectively. All meta-analyses suggested that higher FI was significantly associated with higher mortality risk (pooled HR per 0.01 FI increase = 1.039, 95% CI = 1.033-1.044, P < 0.001; pooled HR per 0.1 FI increase = 1.282, 95% CI = 1.258-1.307, P < 0.001; pooled OR per 0.01 FI increase = 1.054, 95% CI = 1.040 1.068, P < 0.001; pooled OR per 0.1 FI increase = 1.706, 95% CI = 1.547-1.881, P < 0.001). Meta-regression analysis among 13 cohorts with HR per 0.01 increase in FI showed that the studies with shorter follow-up periods and with lower female proportion were associated with higher mortality risks by FI. Conclusions: this systematic review and meta-analysis was the first to quantitatively demonstrate that frailty measured by the FI is a significant predictor of mortality. PMID- 29040348 TI - deSUMOylation signaling: a novel mechanism of liver CSC properties and hepatocarcinogenesis in hypoxia. PMID- 29040349 TI - Female-to-Male Gender Affirming Top Surgery: A Single Surgeon's 15-Year Retrospective Review and Treatment Algorithm. AB - Background: Mastectomy, referred to here as "Top Surgery," is an important surgical step for female-to-male (FTM) transgender patients. The goal is to excise breast tissue and create a masculine chest contour. Despite the rising demand for Top Surgery, debate still exists regarding how to select the most appropriate surgical technique to optimize aesthetic outcomes safely. Objectives: To determine the safety profile and aesthetic outcome of one surgeon's 15-year FTM Top Surgery experience. To provide an algorithm for FTM surgery technique selection based on this experience. Methods: A retrospective chart review was performed on 679 FTM patients (1358 mastectomies) undergoing Top Surgery from October 2001 to July 2016. The author's Top Surgery algorithm utilizes two techniques, "Keyhole" and "Double Incision Free Nipple Graft (DIFNG)," based on breast ptosis, inferior vertical skin pinch, and skin elasticity. Demographic data, operative details, complications, and reoperations along with their reasons were collected and analyzed. Results: Of the 679 patients, 15.3% underwent Keyhole and the remaining 84.7% underwent DIFNG procedure. The total complication rate was 18.1% and the total reoperation rate was 11.2% and these rates were shown to decrease over time. The two techniques differed significantly (P < 0.001) in operating time (136 vs 102 min), breast weight excised (215 vs 638 g), and complication rate (33 vs 16%). The aesthetic rating of results was 4.6/5 for Keyhole and 3.7/5 for DIFNG. Conclusions: Safe and aesthetically pleasing results were achieved using this simplified algorithm. Experience with FTM techniques can decrease complication and reoperation rates over time. Level of Evidence: 3. PMID- 29040350 TI - Editorial: Innovations in Study Design-A Call for Creative Solutions. PMID- 29040352 TI - Preoperative Respiratory Physiotherapy in Abdominoplasty Patients. AB - Background: After abdominoplasty, patients experience decreased ventilatory function and increased intra-abdominal pressure (IAP). Breathing exercises are used during the pre- and postoperative periods of several abdominal surgeries to prevent or minimize postoperative complications. Objectives: The aim of this study was to assess the effect of preoperative respiratory physiotherapy on the outcome of abdominoplasty patients. Methods: Thirty-three patients were divided into 2 groups. The control group (n = 18) received no preoperative intervention. The intervention group (n = 15) performed breathing exercises during the preoperative period, including incentive spirometry, diaphragmatic breathing, shortened expiration, and sustained maximal inspiration. Respiratory physiotherapy started one week before surgery. Breathing exercises were performed daily. They were performed 3 times weekly in the presence of a physiotherapist and patients were instructed to carry on the exercises at home on days without physiotherapy sessions for three sets of 20 repetitions each. Patients were assessed by spirometry and IAP measurements. Results: No significant difference in spirometry was found between groups. However, patients in the intervention group had lower IAP at the start of surgery and at all time points (P = 0.010) compared with controls. Conclusions: Preoperative respiratory physiotherapy had no impact on spirometry, but may have contributed to reduce IAP intraoperatively. Level of Evidence 2: PMID- 29040351 TI - Oxytocin Genotype Moderates the Impact of Social Support on Psychiatric Distress in Alcohol-Dependent Patients. AB - Aims: The social environment strongly influences individual mental health. Individuals with strong social support systems tend to experience higher levels of well-being, lower levels of psychological distress and exhibit fewer psychiatric symptoms. However, there is a significant degree of individual variability as to the extent to which social support is beneficial to overall mental health. From a neurobiological perspective, it is suggested that the social hormone, oxytocin, may moderate the favorable effects of social interaction. To explore this possibility, we evaluated oxytocin genotype, social support and psychological health in a group of individuals diagnosed with DSM-IV alcohol dependence. Methods: The associations between OXT genotype, social support and psychological health were analyzed in data from 269 adults diagnosed with DSM-IV alcohol dependence (25% female) admitted into residential treatment programs and outpatient centers in Warsaw, Poland. Results: In line with past observations, we noted that psychiatric distress scores were negatively correlated with social support. Extending these observations, we uncovered a significant moderating effect of OXT genotype (rs2740210) on the relationship between social support and psychiatric distress. While G carriers displayed the predicted negative relationship between social support and psychiatric distress, T homozygotes failed to exhibit such a relationship. Conclusion: Genetically driven variation in oxytocin system functioning may influence the degree to which the beneficial effects of social support are felt in this population. These results have direct clinical relevance as enhancing social engagement to improve mental health may prove to be a less effective strategy in some patients owing to intrinsic factors. Short summary: The associations between oxytocin genotype, social support, and psychological health were analyzed in data from 269 adults diagnosed with DSM-IV alcohol dependence. A significant moderating effect of OXT genotype (rs2740210) on the relationship between social support and psychiatric distress was detected. PMID- 29040353 TI - Sociodemographic Differences Between Alcohol Use and Sickness Absence: Pooled Analysis of Four Cohort Studies. AB - Aims: We examined differences in sickness absence in relation to at-risk drinking and abstinence, taking into account potential changes in consumption. Methods: We used individual-participant data (n = 46,514) from four prospective cohort studies from Finland, France and the UK. Participants responded to a survey on alcohol use at two time points 4-6 years apart, and were linked to records of sickness absence for an ~6-year follow-up after the latter survey. Abstainers were those reporting no alcohol use in either survey. At-risk drinkers at T1 were labelled as 'former', at-risk drinkers at T2 as 'current' and at-risk drinkers at both times as 'consistent' at-risk drinkers. The reference group was low-risk drinkers at both times. Study-specific analyses were stratified by sex and socioeconomic status (SES) and the estimates were pooled using meta-analysis. Results: Among men (n = 17,285), abstainers (6%), former (5%), current (5%) and consistent (7%) at-risk drinkers had an increased risk of sickness absence compared with consistent low-risk drinkers (77%). Among women (n = 29,229), only abstainers (12%) had a higher risk of sickness absence compared to consistent low risk drinkers (74%). After adjustment for lifestyle and health, abstaining from alcohol was associated with sickness absence among people with intermediate and high SES, but not among people with low SES. Conclusions: The U-shaped alcohol use-sickness absence association is more consistent in men than women. Abstinence is a risk factor for sickness absence among people with higher rather than lower SES. Healthy worker effect and health selection may partly explain the observed differences. Short summary: In a pooled analysis from four cohort studies from three European countries, we demonstrated a U-shaped association between alcohol use and sickness absence, particularly among men. Abstinence from alcohol was associated with increased sickness absenteeism among both sexes and across socioeconomic strata, except those with low SES. PMID- 29040354 TI - Commentary on: Preoperative Respiratory Physiotherapy in Abdominoplasty Patients. PMID- 29040355 TI - Commentary on: Outcome After Breast Reduction Considering Body Mass Index and Resection Amount. PMID- 29040356 TI - Commentary on: Plastic Surgery-Related Hashtag Utilization on Instagram: Implications for Education and Marketing. PMID- 29040357 TI - Environmental Context Influences Visual Attention to Responsible Drinking Messages. AB - Aims: Responsible drinking messages (RDMs) are used as a key tool to reduce alcohol-related harms. A common form of RDM is in a poster format displayed in places such as bars, bus stops and toilet cubicles. However, evidence for the effectiveness of RDMs remains limited. Moreover, it is not known how environmental contexts (e.g. the number of alcohol-related cues in the environment) impact how such RDMs are interacted with, nor how this in turn affects their efficacy. Methods: One hundred participants completed a pseudo taste preference task in either in a bar laboratory (alcohol cue rich environmental context) or a traditional laboratory. The walls of the laboratory displayed either RDM or control posters during this task and eye tracking was used to assess participant attention to the posters. Results: Participants looked at the RDM posters less in the bar laboratory where the environmental context is rich in alcohol cues compared to a traditional laboratory where alcohol cues are sparse. Neither poster type or environmental context affected the amount of 'alcohol' consumed and the amount of visual attention given to RDMs was unrelated to the amount of 'alcohol' consumed. Conclusions: These findings provide experimental evidence that RDMs do not influence drinking behaviour in the direction intended (reduced consumption in situ). In addition, locating RDMs in alcohol-cue rich environments may result in sub-optimal behavioural responses to the RDM materials (e.g. visual attention to content). To maximize the potential impact of RDMs, the optimal location for RDMs is in environments where pre existing alcohol cues are sparse to non-existent. Short Summary: Responsible drinking messages (RDMs) aim to reduce alcohol consumption, however, the findings of this study show that they may not influence in situ consumption. These findings also suggest that the optimal location for RDMs is in environments with few or no other alcohol-related cues. PMID- 29040358 TI - Tissue Expansion Using Hyaluronic Acid Filler for Single-Stage Ear Reconstruction: A Novel Concept for Difficult Areas. AB - Background: Auricular reconstruction is one of the most challenging procedures in plastic surgery. An adequate skin envelope is essential for cartilage framework coverage, yet few good options exist without additional surgery. We propose a novel method for minimally invasive tissue expansion, using hyaluronic acid (HA) filler to allow for single-stage ear reconstruction. Objectives: To introduce the novel concept of HA filler for tissue expansion in ear reconstruction, and as an alternative to traditional expansion techniques. Methods: Macrolane is a large particle HA gel developed for large volume restoration. Expansion of the non-hair bearing mastoid skin was performed in our clinic weekly or every other week. Final expansion was completed one week prior to reconstructive surgery. Tissue from one patient's expanded pocket was sent for histological analysis. Results: Ten patients underwent single-stage auricular reconstruction with preoperative expansion. Injection sessions ranged from 7 to 13 (mean, 9.7). Mean injected volume per session was 2.03 mL per patient, for an average total of 19.8 mL (range, 14.5-30 mL). There were no major complications. One minor complication required removal of exposed wire from the antihelix in the office. Hematoxylin and eosin stain revealed similar histology to that seen with traditional expanders. Conclusions: This novel expansion technique using serial HA injections allowed for optimized skin coverage in single-stage ear reconstruction. The concept of tissue expansion using HA filler is a new frontier for research that may be applicable to other arenas of reconstruction. Level of Evidence: 4. PMID- 29040359 TI - A rank-based algorithm of differential expression analysis for small cell line data with statistical control. AB - To detect differentially expressed genes (DEGs) in small-scale cell line experiments, usually with only two or three technical replicates for each state, the commonly used statistical methods such as significance analysis of microarrays (SAM), limma and RankProd (RP) lack statistical power, while the fold change method lacks any statistical control. In this study, we demonstrated that the within-sample relative expression orderings (REOs) of gene pairs were highly stable among technical replicates of a cell line but often widely disrupted after certain treatments such like gene knockdown, gene transfection and drug treatment. Based on this finding, we customized the RankComp algorithm, previously designed for individualized differential expression analysis through REO comparison, to identify DEGs with certain statistical control for small-scale cell line data. In both simulated and real data, the new algorithm, named CellComp, exhibited high precision with much higher sensitivity than the original RankComp, SAM, limma and RP methods. Therefore, CellComp provides an efficient tool for analyzing small-scale cell line data. PMID- 29040360 TI - Elucidating the editome: bioinformatics approaches for RNA editing detection. AB - RNA editing is a widespread co/posttranscriptional mechanism affecting primary RNAs by specific nucleotide modifications, which plays relevant roles in molecular processes including regulation of gene expression and/or the processing of noncoding RNAs. In recent years, the detection of editing sites has been improved through the availability of high-throughput RNA sequencing (RNA-Seq) technologies. Accurate bioinformatics pipelines are essential for the analysis of next-generation sequencing (NGS) data to ensure the correct identification of edited sites. Several pipelines, using various read mappers and variant callers with a wide range of adjustable parameters, are available for the detection of RNA editing events. In this review, we discuss some of the most recent and popular tools and provide guidelines for RNA-Seq data generation and analysis for the detection of RNA editing in massive transcriptome data. Using simulated and real data sets, we provide an overview of their behavior, emphasizing the fact that the RNA editing detection in NGS data sets remains a challenging task. PMID- 29040361 TI - Commentary on: Labia Majora Augmentation: A Systematic Review of the Literature. PMID- 29040362 TI - Prediction of protein-protein interactions between fungus (Magnaporthe grisea) and rice (Oryza sativa L.). AB - Rice blast disease caused by the fungus Magnaporthe grisea (M. grisea) is one of the most serious diseases for the cultivated rice Oryza sativa (O. sativa). A key factor causing rice blast disease and defense might be protein-protein interactions (PPIs) between rice and fungus. In this research, we have developed a computational pipeline to predict PPIs between blast fungus and rice. After cross-prediction by interolog-based and domain-based method, we achieved 532 potential PPIs between 27 fungus proteins and 236 rice proteins. Accuracy of jackknife test, 10-fold cross-validation test and independent test for these PPIs were 90.43, 93.85 and 84.67%, respectively, by using support vector machine classification method. Meanwhile, the pathogenic genes of blast fungus were enriched in the predicted PPIs network when compared with 1000 random interaction networks. The rice regulatory network was downloaded and divided into 228 subnetworks with over six nodes, and the top seven subnetworks affected by blast fungus through PPIs were investigated. The results indicated that 34 upregulated and 12 downregulated master regulators in rice interacting with the fungus proteins in response to the infection of blast fungus. The common master regulators in rice in response to the infection of M. grisea, Xanthomonas oryzae pv.oryzae and rice stripe virus were analyzed. The ubiquitin proteasome pathway was the common pathway in rice regulated by these three pathogens, while apoptosis signaling pathway was induced by fungus and bacteria. In summary, the results in this article provide insight into the process of blast fungus infection. PMID- 29040363 TI - Establishing Milestones for Facial Injectables in Plastic Surgery Residency Training: Four-Year Follow-Up. PMID- 29040364 TI - Preliminary 3-Year Evaluation of Experience With SilkSurface and VelvetSurface Motiva Silicone Breast Implants: A Single-Center Experience With 5813 Consecutive Breast Augmentation Cases. AB - Background: Silicone breast implants have been in use for breast augmentation for more than 50 years, but technological innovation has been lacking in implant design until recently. Objectives: This study was designed to evaluate the complication and reoperation rates following breast augmentation utilizing the Motiva silicone breast implants. Methods: This retrospective study evaluated the safety of Motiva implants in 5813 consecutive cases of breast augmentation. Implants with two different textured surfaces were evaluated: SilkSurface (nanotextured) and VelvetSurface (micro-textured). Results: Implants were placed between April 2013 and April 2016. A total of 44 complications were reported, with an overall complication rate of 0.76%, and the rate of reoperation was 0.76% over an interval of 3 years. There were no late complications and no cases of primary capsular contracture. No differences in complication rates were observed because of the implant date. However, among patients who received implants 300 to 499 cc in volume, complication rates were significantly lower with SilkSurface compared with VelvetSurface implants. Advanced statistical analysis supported the validity of the low complication rate reported in this study. Conclusions: Overall, these findings suggest that Motiva silicone breast implants are associated with very low rates of complication and reoperation, and that the nano textured SilkSurface implant is associated with fewer complications than micro textured implants. Level of Evidence 3: PMID- 29040366 TI - Origami Model for Central Wedge Labiaplasty: A Simple Educational Model with Video Tutorial. PMID- 29040365 TI - Role of the Akt/mTOR signaling pathway in human papillomavirus-associated nasal and sinonasal inverted papilloma. AB - Nasal and sinonasal inverted papilloma (NSIP) is a benign tumor in which surface epithelial cells grow downward into the underlying supportive tissue with varying degrees of metaplasia. Human papillomavirus (HPV) has been proposed as the causal agent in the pathogenesis of this disease. Many studies have shown that HPV can activate the Akt/mechanistic target of rapamycin (mTOR) signaling pathway, but the role of this pathway in HPV-associated NSIP is largely unknown. In this study, we enrolled 40 control tissue samples and 80 NSIP tissue samples. HPV genotyping showed that 47 of the 80 examined cases of NSIP were HPV-positive (58.8%), and the most common subtype was HPV11 (20/53, 37.7%). The immunohistochemistry showed statistically significant differences in phosphorylated Akt and phosphorylated S6 ribosomal protein staining among control samples, HPV-positive NSIP and HPV-negative NSIP. The HPV11 L1-L2 plasmid increased the proliferation of normal human nasopharyngeal epithelial NP69-SV40T cells and human nasopharyngeal cancer CNE1 cells. Meanwhile, rapamycin, an mTOR inhibitor, reversed the increased cell proliferation induced by the HPV11 L1-L2 plasmid. Western blot analysis showed that Akt/mTOR/S6 were overexpressed in NP69 SV40T cells and CNE1 cells infected with the HPV11 L1-L2 plasmid. These data demonstrate that HPV promotes cell proliferation through the Akt/mTOR signaling pathway in NSIP. PMID- 29040367 TI - Forehead Lift Using Botulinum Toxin. AB - Background: The principle of dynamic muscular activity affecting eyebrow height and shape is well known. We postulate that similarly, dynamics of the fronto galea-occipital muscles affect forehead height. Objectives: To present a forehead lift technique using Botulinum toxin injection and evaluate its clinical efficacy and safety. Methods: Twenty-nine female patients comprised the study group. Forty units of prepared abobutolinumtoxinA (Dysport, 10 U/0.05 mL) were injected into 4 points in the hair-bearing scalp, simulating the points of frontalis origin. The glabella and forehead regions were treated with 50 U each. Standard photographs and measurements were taken before and at 2 weeks following treatment. Forehead height was measured bilaterally drawing a vertical line from mid-pupil to frontal hairline (MPFH) and from medial canthus to frontal hairline (MCFH). We assessed outcome differences in patients with low vs high forehead (cutoff value 5.5 cm forehead height). Results: Mean age was 48 years (range, 29-66 years). Two weeks following treatment, mean frontal height had increased significantly in all measurement points (MCFH right: 4.1 +/- 1.8 mm, MCFH left 4.4 +/- 1.8 mm, MPFH right 4.4 +/- 2.0 mm, MPFH left 4.7 +/- 2.3 mm; P <0.001). Low forehead subgroup achieved significantly higher forehead lift compared with high forehead subgroup both in MCFH (6.9% +/- 2.0% vs 5.3% +/- 2.2%, P = 0.043) and MPFH (8.6% +/- 2.5% vs 5.7% +/- 2.6%, P = 0.008). No adverse events were documented in any participant. Conclusions: Botulinum toxin type A injection into frontalis origin can effectively and safely extend forehead height in selected patients. The effect of this technique is greater on patients with low foreheads. Level of Evidence 4: PMID- 29040368 TI - Commentary on: Heterogeneity in Body Contouring Outcomes Based Research: The Pittsburgh Body Contouring Complication Reporting System. PMID- 29040369 TI - Does the Supine Position Affect the Nasal Profile in Rhinoplasty Patients? A Comparison of Nasal Anthropometric Measurements in Different Body Positions. AB - Background: Rhinoplasty surgeons are aware that the nasal profile differs according to body position, namely, the erect position in the consultation room vs the supine position on the operating table. It is not clear whether this difference is caused by an optical illusion or skin laxity due to positional change. Objectives: To evaluate anthropometric measurements of the nose with different body positions and determine whether the supine position affects the nasal profile. Methods: In this retrospective study, 103 patients who underwent primary rhinoplasty were enrolled. Preoperatively, all patients underwent lateral cephalography in the erect position, and facial computed tomography (CT), in the supine position. We measured four nasal anthropometric parameters (the nasofrontal, nasolabial, and nasomental angles, and Simon's ratio) on lateral cephalograms and facial CT images, and compared these parameters between the two body positions. Results: The nasofrontal angle was greater on facial CT than on cephalograms (P < 0.01). This difference was not related to age, sex, or body mass index (P > 0.05 each). We found no significant difference (P > 0.05) between the two positions in the nasolabial angle, nasomental angle, or Simon's ratio. Conclusions: The supine position does affect the nasal profile, especially in the radix area. Surgeons need to consider this difference in patients undergoing rhinoplasty. Level of Evidence: 2. PMID- 29040371 TI - Commentary on: Demystifying the "July Effect" in Plastic Surgery: A Multi Institutional Study. PMID- 29040370 TI - Long-Term Safety of Textured and Smooth Breast Implants. AB - In this review, the authors provide a 20-year review and comparison of implant options and describe the evolution of breast implant surface textures; compare available implant surfaces; present long-term safety data from the 10-year US based Core clinical studies; list the key benefits and risks associated with smooth and textured implants; and provide perspectives on breast implant associated anaplastic large cell lymphoma (BIA-ALCL). The authors explore the key benefits and risks associated with all available devices so that optimal and safe patient outcomes can be achieved. PMID- 29040372 TI - Response to "Commentary on: Gluteal Augmentation Techniques: A Comprehensive Literature Review". PMID- 29040373 TI - Nonsurgical Vulvovaginal Rejuvenation With Radiofrequency and Laser Devices: A Literature Review and Comprehensive Update for Aesthetic Surgeons. AB - Nonsurgical vulvovaginal rejuvenation (NVR) is growing in popularity as a treatment for restoration of youthful female genitalia. Numerous radiofrequency (RF) and laser devices have entered the market claiming improvement in vaginal laxity and genitourinary syndrome of menopause. There is a paucity of evidence existing concerning the effectiveness of these devices for both pre- and postmenopausal women with laxity and/or atrophy at the histologic and clinical level. Therefore, the goal of this review is to scrutinize the peer-reviewed data on NVR with RF and laser devices, identify gaps in existing literature, and propose opportunities for further investigation. PMID- 29040374 TI - Beyond similarity assessment: selecting the optimal model for sequence alignment via the Factorized Asymptotic Bayesian algorithm. AB - Motivation: Pair Hidden Markov Models (PHMMs) are probabilistic models used for pairwise sequence alignment, a quintessential problem in bioinformatics. PHMMs include three types of hidden states: match, insertion and deletion. Most previous studies have used one or two hidden states for each PHMM state type. However, few studies have examined the number of states suitable for representing sequence data or improving alignment accuracy. Results: We developed a novel method to select superior models (including the number of hidden states) for PHMM. Our method selects models with the highest posterior probability using Factorized Information Criterion, which is widely utilized in model selection for probabilistic models with hidden variables. Our simulations indicated that this method has excellent model selection capabilities with slightly improved alignment accuracy. We applied our method to DNA datasets from 5 and 28 species, ultimately selecting more complex models than those used in previous studies. Availability and implementation: The software is available at https://github.com/bigsea-t/fab-phmm. Contact: mhamada@waseda.jp. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29040375 TI - Multitasking: So You Think You're a Pro? PMID- 29040376 TI - AEGS: identifying aberrantly expressed gene sets for differential variability analysis. AB - Motivation: In gene expression studies, differential expression (DE) analysis has been widely used to identify genes with shifted expression mean between groups. Recently, differential variability (DV) analysis has been increasingly applied as analyzing changed expression variability (e.g. the changes in expression variance) between groups may reveal underlying genetic heterogeneity and undetected interactions, which has great implications in many fields of biology. An easy-to-use tool for DV analysis is needed. Results: We develop AEGS for DV analysis, to identify aberrantly expressed gene sets in diseased cases but not in controls. AEGS can rank individual genes in an aberrantly expressed gene set by each gene's relative contribution to the total degree of aberrant expression, prioritizing top genes. AEGS can be used for discovering gene sets with disease specific expression variability changes. Availability and implementation: AEGS web server is accessible at http://bmi.xmu.edu.cn:8003/AEGS, where a stand-alone AEGS application can also be downloaded. Contact: glji@xmu.edu.cn. PMID- 29040377 TI - Safest Practices for Autologous Buttock Augmentation With Fat Grafting Using a Roller Pump Injection Technique. AB - Background: Autologous buttock augmentation with fat grafting has emerged as one of the preeminent modalities for body contouring employed by plastic surgeons today. Since 2009, we have used the roller pump injection technique. Objectives: This procedure can be performed safely without specialized equipment and eliminates the tasks of manual graft preparation and injection. We describe our technique and standard safety measures. The anatomy of and complications associated with liposuction and fat grafting were recorded and reviewed. Methods: Retrospective chart review of 916 patients who underwent autologous buttock augmentation by this method from February 2009 to November 2016 was performed. All procedures were performed under general anesthesia at the same surgical center. Liposuction was performed and using a roller pump, the fat layer was propelled through an open-ended cannula into the recipient site. Results: Mean volume of fat removed and fat grafted in each patient was 3156 mL and 1807 mL per patient, respectively. There were complications in 13 patients for a rate of 1.4% with 10 (1.1%) related to fat grafting. Fourteen patients (1.5%) had subsequent procedures for volume and four patients (0.44%) for asymmetry. There were no venous thrombolic events, fat embolic events, or deaths. Conclusions: The roller pump injection technique for buttock augmentation with fat grafting is safe and efficient. This technique minimizes preparatory effort and does not require additional equipment. We were unable to identify variables associated with complication risk due to the power of this study and the low percentage of complications. Level of Evidence 4: PMID- 29040378 TI - Plastic Surgery-Related Hashtag Utilization on Instagram: Implications for Education and Marketing. AB - Background: Recent data suggest patients are seeking aesthetic surgery to improve their appearance on Instagram and other social media. Despite the rising influence of Instagram in plastic surgery, few academic publications address Instagram, let alone evaluate its utilization in plastic surgery. Objectives: We set out to answer the following three questions: 1) what plastic surgery-related content is being posted to Instagram; 2) who is posting this content; and 3) what specific hashtags are they using? Methods: Our study queried 21 Instagram plastic surgery-related hashtags. Content analysis was used to qualitatively evaluate each of the nine "top" posts associated with each hashtag (189 posts). Duplicate posts and those not relevant to plastic surgery were excluded. Results: A total of 1,789,270 posts utilized the 21 hashtags sampled in this study. Of the top 189 posts for these 21 queried hashtags, 163 posts met inclusion criteria. Plastic surgeons eligible for membership in American Society for Aesthetic Plastic Surgery (ASAPS) accounted for only 17.8% of top posts, whereas noneligible physicians accounted for 26.4%. All nonplastic surgery trained physicians marketed themselves as "cosmetic surgeons." Nine top posts (5.5%) were by nonphysicians, including dentists, spas with no associated physician, and a hair salon. The majority of these posts were self-promotional (67.1%) as opposed to educational (32.9%). Board-certified plastic surgeons were significantly more likely to post educational content to Instagram as compared to nonplastic surgeons (62.1% vs 38.1%, P = 0.02). Conclusions: ASAPS eligible board-certified plastic surgeons are underrepresented amongst physicians posting top plastic surgery-related content to Instagram. PMID- 29040380 TI - A historical perspective on some "new" discoveries on spermatogenesis from the laboratory of Enrico Sertoli in 1878. PMID- 29040379 TI - Contrasting evolutionary processes during Quaternary climatic changes and historical orogenies: a case study of the Japanese endemic primroses Primula sect. Reinii. AB - Background and Aims: Recent biogeographic studies have illustrated that Quaternary climatic changes and historical orogenies have driven the development of high levels of biodiversity. In this context, phylogenetic niche conservatism may play a role as a major precursor of allopatric speciation. However, the effects of niche evolution on the diversification patterns of plant species under rapid habitat changes are still unknown. Here, Primula section Reinii, one of the few primroses endemic to the Japanese Archipelago, was investigated. This study aimed to clarify the phylogenetic position and relationships of section Reinii, interpret the biogeographic and diversification patterns of this group and gain a better understanding of the role of climatic niche evolution in the Japanese endemic primroses. Methods: Dated phylogeny for Primula section Reinii is presented based on the sequences of six chloroplast genes and one nuclear gene. Biogeographic history was reconstructed using statistical dispersal-vicariance analysis. Macro-evolutionary modelling of the climatic niche was combined with biogeographic inferences. Key Results: Section Reinii was shown to be monophyletic based on chloroplast and nuclear sequences. Fossil-calibrated dating analysis estimated that this section diverged from its sister taxon, sect. Cortusoides, around 1.82 million years ago, and intraspecific diversification occurred within the last million years. This time frame was characterized by Quaternary climatic oscillations and uplift of high mountains in Japan. Biogeographic inference suggested that this section originated at the northern end of the Japanese Archipelago and then dispersed southward to other islands. Models of climatic niche evolution indicated that the closely related species P. reinii and P. tosanensis have contrasting niche optima and rates of niche evolution. Conclusion: Our results highlight that spatiotemporal heterogeneity in the Japanese islands may play a significant role in the biogeographic history of Japanese endemic primroses. Contrasting evolutionary processes found in closely related species illustrate the effects of climatic niche evolution on species' diversification patterns. PMID- 29040381 TI - The CUG-translated WT1, not AUG-WT1, is an oncogene. AB - The Wilms' tumor 1 (WT1) gene is believed to act as a canonical tumor suppressor. However, it has also been reported to function as an oncogene. Germline WT1 deletion is associated with Wilms' tumor, and exogenous WT1 cDNA introduction into cells induces the transcriptional suppression of its oncogenic target genes. In contrast, high WT1 expression is associated with poor prognosis in patients with various cancers. Why WT1 acts as a tumor suppressor under certain conditions but as an oncogene under other conditions is unknown. Here, we report that CUG initiation site for WT1 protein synthesis (CUG)-translated WT1 (cugWT1), an N terminally extended form of canonical AUG initiation site for WT1 protein synthesis (AUG)-translated WT1 (augWT1), was overexpressed in most cancer cell lines and cancer tissues and functioned as an oncogene, whereas the classical augWT1 acted as a tumor suppressor as reported previously and inhibited the function of cugWT1. Translation of cugWT1 is initiated from a CUG codon upstream and in-frame with the coding region of augWT1. cugWT1 induced cell transformation and increased the gene expression of c-myc, bcl-2 and egfr, whereas overexpression of augWT1 repressed colony formation of cancer cells and inhibited the expression of the same target genes by recruiting histone deacetylase 1 (HDAC1). In addition, we found that protein kinase B (AKT)-phosphorylated cugWT1 on Ser62 and protected cugWT1 from proteasomal degradation induced by the F box/WD repeat-containing protein 8 (FBXW8). These results provide an important breakthrough in the field of cancer biology and contribute significantly to the resolution of the chameleon function of WT1. PMID- 29040383 TI - Beyond the matrix: MMP2 as critical regulator of inflammation-mediated vascular dysfunction. PMID- 29040382 TI - Generalized correlation measure using count statistics for gene expression data with ordered samples. AB - Motivation: Capturing association patterns in gene expression levels under different conditions or time points is important for inferring gene regulatory interactions. In practice, temporal changes in gene expression may result in complex association patterns that require more sophisticated detection methods than simple correlation measures. For instance, the effect of regulation may lead to time-lagged associations and interactions local to a subset of samples. Furthermore, expression profiles of interest may not be aligned or directly comparable (e.g. gene expression profiles from two species). Results: We propose a count statistic for measuring association between pairs of gene expression profiles consisting of ordered samples (e.g. time-course), where correlation may only exist locally in subsequences separated by a position shift. The statistic is simple and fast to compute, and we illustrate its use in two applications. In a cross-species comparison of developmental gene expression levels, we show our method not only measures association of gene expressions between the two species, but also provides alignment between different developmental stages. In the second application, we applied our statistic to expression profiles from two distinct phenotypic conditions, where the samples in each profile are ordered by the associated phenotypic values. The detected associations can be useful in building correspondence between gene association networks under different phenotypes. On the theoretical side, we provide asymptotic distributions of the statistic for different regions of the parameter space and test its power on simulated data. Availability and implementation: The code used to perform the analysis is available as part of the Supplementary Material. Contact: msw@usc.edu or hhuang@stat.berkeley.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29040384 TI - SELANSI: a toolbox for simulation of stochastic gene regulatory networks. AB - Motivation: Gene regulation is inherently stochastic. In many applications concerning Systems and Synthetic Biology such as the reverse engineering and the de novo design of genetic circuits, stochastic effects (yet potentially crucial) are often neglected due to the high computational cost of stochastic simulations. With advances in these fields there is an increasing need of tools providing accurate approximations of the stochastic dynamics of gene regulatory networks (GRNs) with reduced computational effort. Results: This work presents SELANSI (SEmi-LAgrangian SImulation of GRNs), a software toolbox for the simulation of stochastic multidimensional gene regulatory networks. SELANSI exploits intrinsic structural properties of gene regulatory networks to accurately approximate the corresponding Chemical Master Equation with a partial integral differential equation that is solved by a semi-lagrangian method with high efficiency. Networks under consideration might involve multiple genes with self and cross regulations, in which genes can be regulated by different transcription factors. Moreover, the validity of the method is not restricted to a particular type of kinetics. The tool offers total flexibility regarding network topology, kinetics and parameterization, as well as simulation options. Availability and implementation: SELANSI runs under the MATLAB environment, and is available under GPLv3 license at https://sites.google.com/view/selansi. Contact: antonio@iim.csic.es. PMID- 29040385 TI - A benchmarking of workflows for detecting differential splicing and differential expression at isoform level in human RNA-seq studies. AB - Over the last few years, RNA-seq has been used to study alterations in alternative splicing related to several diseases. Bioinformatics workflows used to perform these studies can be divided into two groups, those finding changes in the absolute isoform expression and those studying differential splicing. Many computational methods for transcriptomics analysis have been developed, evaluated and compared; however, there are not enough reports of systematic and objective assessment of processing pipelines as a whole. Moreover, comparative studies have been performed considering separately the changes in absolute or relative isoform expression levels. Consequently, no consensus exists about the best practices and appropriate workflows to analyse alternative and differential splicing. To assist the adequate pipeline choice, we present here a benchmarking of nine commonly used workflows to detect differential isoform expression and splicing. We evaluated the workflows performance over different experimental scenarios where changes in absolute and relative isoform expression occurred simultaneously. In addition, the effect of the number of isoforms per gene, and the magnitude of the expression change over pipeline performances were also evaluated. Our results suggest that workflow performance is influenced by the number of replicates per condition and the conditions heterogeneity. In general, workflows based on DESeq2, DEXSeq, Limma and NOISeq performed well over a wide range of transcriptomics experiments. In particular, we suggest the use of workflows based on Limma when high precision is required, and DESeq2 and DEXseq pipelines to prioritize sensitivity. When several replicates per condition are available, NOISeq and Limma pipelines are indicated. PMID- 29040386 TI - Robust distributed lag models using data adaptive shrinkage. AB - Distributed lag models (DLMs) have been widely used in environmental epidemiology to quantify the lagged effects of air pollution on an outcome of interest such as mortality or cardiovascular events. Generally speaking, DLMs can be applied to time-series data where the current measure of an independent variable and its lagged measures collectively affect the current measure of a dependent variable. The corresponding distributed lag (DL) function represents the relationship between the lags and the coefficients of the lagged exposure variables. Common choices include polynomials and splines. On one hand, such a constrained DLM specifies the coefficients as a function of lags and reduces the number of parameters to be estimated; hence, higher efficiency can be achieved. On the other hand, under violation of the assumption about the DL function, effect estimates can be severely biased. In this article, we propose a general framework for shrinking coefficient estimates from an unconstrained DLM, that are unbiased but potentially inefficient, toward the coefficient estimates from a constrained DLM to achieve a bias-variance trade-off. The amount of shrinkage can be determined in various ways, and we explore several such methods: empirical Bayes type shrinkage, a hierarchical Bayes approach, and generalized ridge regression. We also consider a two-stage shrinkage approach that enforces the effect estimates to approach zero as lags increase. We contrast the various methods via an extensive simulation study and show that the shrinkage methods have better average performance across different scenarios in terms of mean squared error (MSE).We illustrate the methods by using data from the National Morbidity, Mortality, and Air Pollution Study (NMMAPS) to explore the association between PM$_{10}$, O$_3$, and SO$_2$ on three types of disease event counts in Chicago, IL, from 1987 to 2000. PMID- 29040387 TI - Commentary on: Female-to-Male Gender Affirming Top Surgery: A Single Surgeon's 15 Year Retrospective Review and Treatment Algorithm. PMID- 29040388 TI - RNA structure interactions and ribonucleoprotein processes of the influenza A virus. AB - In one more years, we will 'celebrate' an exact centenary of the Spanish flu pandemic. With the rapid evolution of the influenza virus, the possibility of novel pandemic remains ever a concern. This review covers our current knowledge of the influenza A virus: on the role of RNA in translation, replication, what is known of the expressed proteins and the protein products generated from alternative splicing, and on the role of base pairing in RNA structure. We highlight the main events associated with viral entry into the cell, the transcription and replication process, an export of the viral genetic material from the nucleus and the final release of the virus. We discuss the observed potential roles of RNA secondary structure (the RNA base-pairing arrangement) and RNA/RNA interactions in this scheme. PMID- 29040390 TI - Robust and sparse correlation matrix estimation for the analysis of high dimensional genomics data. AB - Motivation: Microarray technology can be used to study the expression of thousands of genes across a number of different experimental conditions, usually hundreds. The underlying principle is that genes sharing similar expression patterns, across different samples, can be part of the same co-expression system, or they may share the same biological functions. Groups of genes are usually identified based on cluster analysis. Clustering methods rely on the similarity matrix between genes. A common choice to measure similarity is to compute the sample correlation matrix. Dimensionality reduction is another popular data analysis task which is also based on covariance/correlation matrix estimates. Unfortunately, covariance/correlation matrix estimation suffers from the intrinsic noise present in high-dimensional data. Sources of noise are: sampling variations, presents of outlying sample units, and the fact that in most cases the number of units is much larger than the number of genes. Results: In this paper, we propose a robust correlation matrix estimator that is regularized based on adaptive thresholding. The resulting method jointly tames the effects of the high-dimensionality, and data contamination. Computations are easy to implement and do not require hand tunings. Both simulated and real data are analyzed. A Monte Carlo experiment shows that the proposed method is capable of remarkable performances. Our correlation metric is more robust to outliers compared with the existing alternatives in two gene expression datasets. It is also shown how the regularization allows to automatically detect and filter spurious correlations. The same regularization is also extended to other less robust correlation measures. Finally, we apply the ARACNE algorithm on the SyNTreN gene expression data. Sensitivity and specificity of the reconstructed network is compared with the gold standard. We show that ARACNE performs better when it takes the proposed correlation matrix estimator as input. Availability and implementation: The R software is available at https://github.com/angy89/RobustSparseCorrelation. Contact: aserra@unisa.it or robtag@unisa.it. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29040389 TI - The Antiepileptic Ketogenic Diet Alters Hippocampal Transporter Levels and Reduces Adiposity in Aged Rats. AB - Nutritional ketosis is induced by high fat/low carbohydrate dietary regimens, which produce high levels of circulating ketone bodies, shifting metabolism away from glucose utilization. While ketogenic diets (KD) were initially introduced to suppress seizures, they are garnering attention for their potential to treat a myriad of neurodegenerative and metabolic disorders that are associated with advanced age. The feasibility and physiological impact of implementing a long term KD in old animals, however, has not been systematically examined. In this study, young and aged rats consumed a calorically- and nutritionally-matched KD or control diet for 12 weeks. All KD-fed rats maintained higher levels of BHB and lower levels of glucose relative to controls. However, it took the aged rats longer to reach asymptotic levels of BHB compared to young animals. Moreover, KD fed rats had significantly less visceral white and brown adipose tissue than controls without a loss of lean mass. Interestingly, the KD led to significant alterations in protein levels of hippocampal transporters for monocarboxylates, glucose, and vesicular glutamate and gamma-aminobutyric acid. Most notably, the age-related decline in vesicular glutamate transporter expression was reversed by the KD. These data demonstrate the feasibility and potential benefits of KDs for treating age-associated neural dysfunction. PMID- 29040391 TI - Quantification of the Aesthetically Desirable Female Midface Position. AB - Background: The purpose of this study was to attempt to determine a reliable method of evaluating midface position. We assessed a novel parameter called WIZDOM (Width of the Interzygomatic Distance of the Midface) and its relationship to other facial metrics. Objectives: The goal was to evaluate midfacial position quantitatively in women by examining 2-dimensional photographs of a subset of women with idealized facial proportions. Methods: Three examiners analyzed stock photographs of nonsmiling female model faces. Numerous parameters were analyzed for each photograph, including: interpupillary distance, medial canthus (MC) to lip, brow length, WIZDOM, WIZDOM to MC, WIZDOM to hairline, WIZDOM to chin vertical, and lateral brow to WIZDOM. Meaningful relationships between various parameters were statistically analyzed. Examiner measurements were assessed for interobserver reliability. Results: Fifty-five female model photographs were included in the analysis. The average interpupillary distance was 59.2 mm +/- 3.54 (range, 50.5-67.3 mm). The WIZDOM average was 108 mm +/- 5.81 (range, 93-127 mm) and brow length was 107 mm +/- 5.87 (range, 96.7-124 mm). The difference between brow length and WIZDOM was not statistically different (P = 0.834). The interobserver reliability between the 3 examiners was excellent for all parameters (P < 0.01), ranging from 0.718 (WIZDOM-MC) to 0.993 (interpupillary distance). The WIZDOM measurement was reproducible with an interobserver coefficient of 0.939. Conclusions: WIZDOM can be used to quantify aesthetically desirable midfacial position in patients and can be used as a measurement to aid in assessment and as an ideal to achieve balanced aesthetic results in midface restorative procedures-lifting or volumization-in females. PMID- 29040392 TI - beta-Cypermethrin and its metabolite 3-phenoxybenzoic acid exhibit immunotoxicity in murine macrophages. AB - beta-Cypermethrin (beta-CYP), one of most important pyrethroids, is widely used to control insects, and has been detected in organisms, including human. Pyrethroids have been shown to pose neurotoxicity, hepatotoxicity, endocrine disruption and reproductive risks in mammals. However, research in immunotoxicity of pyrethroids, especially their metabolites, is limited. A common metabolite of pyrethroids is 3-phenoxybenzoic acid (3-PBA) in mammals. Thus, in this study, we evaluated the immunotoxicity of beta-CYP and 3-PBA in mouse macrophages, RAW 264.7 cells. MTT assays showed that both beta-CYP and 3-PBA reduced cell viability in a concentration- and time-dependent manner. Flow cytometry with Annexin-V/PI staining demonstrated that both beta-CYP and 3-PBA induced RAW 264.7 cell apoptosis. Furthermore, our results also showed that N-acetylcysteine partially blocked beta-CYP- and 3-PBA-induced cytotoxicity and apoptosis. Intrinsic apoptotic pathway was stimulated by both beta-CYP and 3-PBA exposure. In addition, we found that beta-CYP and 3-PBA inhibited mRNA levels of pro inflammatory cytokines with or without LPS stimulation. Phagocytosis assay showed that both beta-CYP and 3-PBA inhibited phagocytic ability of macrophages. Moreover, it was also found that both beta-CYP and 3-PBA increased reactive oxygen species (ROS) levels in RAW 264.7 cells. Accordingly, both beta-CYP and 3 PBA were found to regulate the mRNA levels of oxidative stress-related genes in RAW 264.7 cells. Taken together, the results obtained in this study demonstrated that beta-CYP and 3-PBA may have immunotoxic effect on macrophages and that elevated ROS may underlie the mechanism. The present study will help to understand the health risks caused by beta-CYP and other pyrethroids. PMID- 29040393 TI - Extending the scope of Darwin's 'abominable mystery': integrative approaches to understanding angiosperm origins and species richness. AB - Background and aims: Angiosperms are the most species-rich group of land plants, but their origins and fast and intense diversification still require an explanation. Scope: Extending research scopes can broaden theoretical frameworks and lines of evidence that can lead to solving this 'abominable mystery'. Solutions lie in understanding evolutionary trends across taxa and throughout the Phanerozoic, and integration between hypotheses and ideas that are derived from multiple disciplines. Key Findings: Descriptions of evolutionary chronologies should integrate between molecular phylogenies, descriptive palaeontology and palaeoecology. New molecular chronologies open new avenues of research of possible Palaeozoic angiosperm ancestors and how they evolved during as many as 200Myr until the emergence of true angiosperms. The idea that 'biodiversity creates biodiversity' requires evidence from past and present ecologies, with changes in herbivory and resource availability throughout the Phanerozoic appearing to be particularly promising. Conclusions: Promoting our understanding of angiosperm origins and diversification in particular, and the evolution of biodiversity in general, requires more profound understanding of the ecological past through integrating taxonomic, temporal and ecological scopes. PMID- 29040394 TI - Compound image segmentation of published biomedical figures. AB - Motivation: Images convey essential information in biomedical publications. As such, there is a growing interest within the bio-curation and the bio-databases communities, to store images within publications as evidence for biomedical processes and for experimental results. However, many of the images in biomedical publications are compound images consisting of multiple panels, where each individual panel potentially conveys a different type of information. Segmenting such images into constituent panels is an essential first step toward utilizing images. Results: In this article, we develop a new compound image segmentation system, FigSplit, which is based on Connected Component Analysis. To overcome shortcomings typically manifested by existing methods, we develop a quality assessment step for evaluating and modifying segmentations. Two methods are proposed to re-segment the images if the initial segmentation is inaccurate. Experimental results show the effectiveness of our method compared with other methods. Availability and implementation: The system is publicly available for use at: https://www.eecis.udel.edu/~compbio/FigSplit. The code is available upon request. Contact: shatkay@udel.edu. Supplementary information: Supplementary data are available online at Bioinformatics. PMID- 29040395 TI - Human Genome Sequencing at the Population Scale: A Primer on High-Throughput DNA Sequencing and Analysis. AB - Most human diseases have underlying genetic causes. To better understand the impact of genes on disease and its implications for medicine and public health, researchers have pursued methods for determining the sequences of individual genes, then all genes, and now complete human genomes. Massively parallel high throughput sequencing technology, where DNA is sheared into smaller pieces, sequenced, and then computationally reordered and analyzed, enables fast and affordable sequencing of full human genomes. As the price of sequencing continues to decline, more and more individuals are having their genomes sequenced. This may facilitate better population-level disease subtyping and characterization, as well as individual-level diagnosis and personalized treatment and prevention plans. In this review, we describe several massively parallel high-throughput DNA sequencing technologies and their associated strengths, limitations, and error modes, with a focus on applications in epidemiologic research and precision medicine. We detail the methods used to computationally process and interpret sequence data to inform medical or preventative action. PMID- 29040396 TI - Survival analysis with time-dependent covariates subject to missing data or measurement error: Multiple Imputation for Joint Modeling (MIJM). AB - Modern epidemiological studies collect data on time-varying individual-specific characteristics, such as body mass index and blood pressure. Incorporation of such time-dependent covariates in time-to-event models is of great interest, but raises some challenges. Of specific concern are measurement error, and the non synchronous updating of covariates across individuals, due for example to missing data. It is well known that in the presence of either of these issues the last observation carried forward (LOCF) approach traditionally used leads to bias. Joint models of longitudinal and time-to-event outcomes, developed recently, address these complexities by specifying a model for the joint distribution of all processes and are commonly fitted by maximum likelihood or Bayesian approaches. However, the adequate specification of the full joint distribution can be a challenging modeling task, especially with multiple longitudinal markers. In fact, most available software packages are unable to handle more than one marker and offer a restricted choice of survival models. We propose a two stage approach, Multiple Imputation for Joint Modeling (MIJM), to incorporate multiple time-dependent continuous covariates in the semi-parametric Cox and additive hazard models. Assuming a primary focus on the time-to-event model, the MIJM approach handles the joint distribution of the markers using multiple imputation by chained equations, a computationally convenient procedure that is widely available in mainstream statistical software. We developed an R package "survtd" that allows MIJM and other approaches in this manuscript to be applied easily, with just one call to its main function. A simulation study showed that MIJM performs well across a wide range of scenarios in terms of bias and coverage probability, particularly compared with LOCF, simpler two-stage approaches, and a Bayesian joint model. The Framingham Heart Study is used to illustrate the approach. PMID- 29040397 TI - Demystifying the "July Effect" in Plastic Surgery: A Multi-Institutional Study. AB - Background: The "July Effect" refers to a theoretical increase in complications that may occur with the influx of inexperienced interns and residents at the beginning of each academic year in July. Objectives: We endeavored to determine if a July Effect occurs in plastic surgery. Methods: Plastic surgery procedures were isolated from the National Surgical Quality Improvement Program registry. Cases involving residents were grouped as either having occurred within the first academic quarter (AQ1) or remaining year (AQ2-4). Groups were propensity matched using patient/operative factors and procedure type to account for baseline differences. Univariate and multivariate regression analyses assessed differences in overall complications, surgical and medical complications, individual complications, length of hospital stay, and operative time. A comparison group comprised of procedures without resident involvement was also analyzed. Results: There were 5967 cases with resident involvement, 5156 of which successfully matched. Both univariate and multivariate regression analyses revealed no significant differences between AQ1 and AQ2-4 in terms of overall, surgical, medical and individual complications, or length of hospital stay. There was a statistically significant, albeit not clinically significant, increase in operative time by 10 minutes per procedure during AQ1 in comparison to AQ2-4 (P = 0.001). For procedures lacking resident participation, there were no differences between AQ1 and AQ2-4 in terms of these outcomes. Conclusions: A July Effect was not observed for plastic surgery procedures in our study, conceivably due to enhanced resident oversight and infrastructural safeguards. Patients electing to undergo plastic surgery early in the academic year can be reassured of their safety during this period. PMID- 29040398 TI - Correlation of Blood Pressure Variability as Measured By Clinic, Self-measurement at Home, and Ambulatory Blood Pressure Monitoring. AB - BACKGROUND: Blood pressure variability (BPV) has been postulated as a potential predictor of cardiovascular outcomes. No agreement exists as to which measurement method is best for BPV estimation. We attempt to assess the correlation between BPV obtained at the doctor's office, self-measurement at home (SMBP) and ambulatory BP monitoring (ABPM). METHODS: Eight weekly clinic BP measurements, 2 SMBP series, and 1 24-hour ABPM recording were carried out in a sample of treated hypertensive patients. BPV was calculated using the SD, the "coefficient of variation" and the "average real variability." Determinants of short-, mid-, and long-term BPV (within each measurement method) were also calculated. The different BPV determinants were correlated "intramethod" and "intermethod" by linear regression test. RESULTS: For the 104 patients (66.5 +/- 7.7 years, 58.7% males), the ABPM BPV (SD, systolic/diastolic: 14.5 +/- 3.1/9.8 +/- 2.5 mm Hg) was higher than the SMBP (12.2 +/- 9.8/7.4 +/- 5.8 mm Hg; P < 0.001) and clinic BPV (10 +/- 8.9/5.9 +/- 4.9 mm Hg; P = 0.001). The main BPV correlation between methods was weak, with a maximum R2 = 0.17 (P < 0.001) between clinic and SMBP systolic BPV. The "intramethod" correlation of BPV yielded a maximum R2 = 0.21 (P < 0.001) between morning diastolic SMBP intershift/intermeans variability. The "intermethod" correlation of short-, mid-, and long-term BPV determinants was weak (maximum R2 = 0.22, P < 0.001, between clinic intraday variability/SMBP morning intershift variability). CONCLUSIONS: The "intramethod" and "intermethod" correlation between BPV determinants was weak or nonexistent, even when comparing determinants reflecting the same type of temporal BPV. Our data suggest that BPV reflects a heterogeneous phenomenon that strongly depends on the estimation method and the time period evaluated. PMID- 29040399 TI - Toward completion of the Earth's proteome: an update a decade later. AB - Protein databases are steadily growing driven by the spread of new more efficient sequencing techniques. This growth is dominated by an increase in redundancy (homologous proteins with various degrees of sequence similarity) and by the incapability to process and curate sequence entries as fast as they are created. To understand these trends and aid bioinformatic resources that might be compromised by the increasing size of the protein sequence databases, we have created a less-redundant protein data set. In parallel, we analyzed the evolution of protein sequence databases in terms of size and redundancy. While the SwissProt database has decelerated its growth mostly because of a focus on increasing the level of annotation of its sequences, its counterpart TrEMBL, much less limited by curation steps, is still in a phase of accelerated growth. However, we predict that before 2020, almost all entries deposited in UniProtKB will be homologous to known proteins. We propose that new sequencing projects can be made more useful if they are driven to sequencing voids, parts of the tree of life far from already sequenced species or model organisms. We show these voids are present in the Archaea and Eukarya domains of life. The approach to the certainty of the redundancy of new protein sequence entries leads to the consideration that most of the protein diversity on Earth has already been described, which we estimate to be of around 3.75 million proteins, revising down the prediction we did a decade ago. PMID- 29040400 TI - Treatment of Gastrocnemius Muscle Hypertrophy with Botulinum Toxin Injection Followed by Magnetic Resonance Imaging Assessment and 3-Dimensional Evaluation. AB - Background: Hypertrophy of the gastrocnemius muscle is considered to be a hindrance to lower leg beauty in the Asian aesthetic market. A noninvasive technique that has been gaining recognition involves botulinum toxin A injection; however, there are no proper guidelines or standardized protocols for the administration of botulinum toxin to correct gastrocnemius hypertrophy. Objectives: This study sought to determine the most effective botulinum toxin injection method for correcting the contour of the lower leg calf, as well as to determine the dose that can produce the maximum effect in meeting the demands of the physician and patient. Methods: Eighteen female patients aged between 18 and 35 years were enrolled in this study from January 2015 to July 2015. Two injection methods were compared: (I) 48 injection points with a distance of 2 cm between every point; and (II) 10 injection points. Magnetic resonance imaging examinations were conducted at baseline prior to treatment and at one month and 6 months after treatment. A 3-dimensional study was performed to analyze the volumetric changes. Results: The most effective and significant treatment method for hypertrophic gastrocnemius muscle was the 48-point method (scattering injection). Following injection, this method exhibited a significant level of satisfaction with outcome. Conclusions: Our study reveals that injection dosage and method have a strong relationship with achieving a better contouring result. Level of Evidence: 3. PMID- 29040401 TI - A Young Blood Environment Decreases Aging of Senile Mice Kidneys. AB - Whether changes in internal body environment affect kidney aging remains unclear. Specifically, it is unknown whether transplanted kidneys from older donors recover from tissue damage after placement in younger recipients. In this study, a parabiosis animal model was established to investigate the effects of a young internal body environment on aged kidneys. The animals were divided into six groups: young (Ycon) and old control (Ocon) groups, isochronic youth-youth group (Y-IP), elderly-elderly group (O-IP), and heterochronic youth (Y-HP) and elderly (O-HP) groups. After parabiosis, tubule and interstitial tissue scores in the O HP group were significantly lower than in the Ocon and O-IP groups. The expression of aging-related protein p16 and SA-beta-gal in the O-HP group was significantly reduced compared with the Ocon and O-IP groups. Autophagy factors Atg5 and LC3BII were significantly upregulated, whereas the expression of the autophagic degradation marker (P62) was significantly downregulated in the O-HP group compared with the Ocon and O-IP groups. With the same comparison, the positive cells of TUNEL staining and the expression of IL-6 and IL-1beta were significantly reduced, whereas the total/cleaved caspase-3 and total/pNF-kappaB were significantly increased in the O-HP group. The results demonstrated that a young blood environment significantly reduces kidney aging. These findings provide new evidence supporting an increase in the upper age limit for human kidney transplantation donors. PMID- 29040402 TI - Is postspinal hypotension a sign of impaired cardiac performance in the elderly? An observational mechanistic study. AB - Background: We have previously reported that stroke volume is reduced in a majority of elderly patients undergoing surgical repair of hip fracture before and after intrathecal injection of anaesthetic. We aimed to investigate these observations further in a prospective study of elderly patients undergoing elective hip or knee arthroplasty under spinal anaesthesia. Methods: Patients >=65 yr undergoing elective arthroplasty were monitored with LiDCOplusTM preoperatively (baseline), before and continuously for 45 min after spinal anaesthesia. Postspinal hypotension was defined as systolic blood pressure (bp) < 100 mm Hg or > 30% decrease from baseline. Associations between post-spinal hypotension and haemodynamic changes before (i.e. between baseline and before injection) spinal anaesthesia were analysed by logistic regression analysis. Results: Twenty patients with a mean age of 74 (range 66-89) yr were included. Stroke volume index decreased by 14% (95% CI 9.3%-19%) before spinal anaesthesia. When patients were categorised according to post-spinal hypotension (Y/N) the patterns of haemodynamic changes differed. In the hypotensive patients, cardiac index progressively decreased whereas it increased initially in the non hypotensive patients. Reduction of cardiac index from baseline before spinal anaesthesia was associated with increased risk of hypotension: OR 0.79 (95% CI 0.60, 0.91). The predictive value of reduced cardiac index was good (AUC under ROC curve 0.91). Conclusions: A decrease in cardiac output from baseline before spinal anaesthesia and an inability to increase it after induction may be important features of postspinal hypotension in elderly patients. PMID- 29040403 TI - Age-Related Changes in Temporal Processing of Rapidly-Presented Sound Sequences in the Macaque Auditory Cortex. AB - The mammalian auditory cortex is necessary to resolve temporal features in rapidly-changing sound streams. This capability is crucial for speech comprehension in humans and declines with normal aging. Nonhuman primate studies have revealed detrimental effects of normal aging on the auditory nervous system, and yet the underlying influence on temporal processing remains less well defined. Therefore, we recorded from the core and lateral belt areas of auditory cortex when awake young and old monkeys listened to tone-pip and noise-burst sound sequences. Elevated spontaneous and stimulus-driven activity were the hallmark characteristics in old monkeys. These old neurons showed isomorphic-like discharge patterns to stimulus envelopes, though their phase-locking was less precise. Functional preference in temporal coding between the core and belt existed in the young monkeys but was mostly absent in the old monkeys, in which old belt neurons showed core-like response profiles. Finally, the analysis of population activity patterns indicated that the aged auditory cortex demonstrated a homogenous, distributed coding strategy, compared to the selective, sparse coding strategy observed in the young monkeys. Degraded temporal fidelity and highly-responsive, broadly-tuned cortical responses could underlie how aged humans have difficulties to resolve and track dynamic sounds leading to speech processing deficits. PMID- 29040404 TI - Variables That Impact Medical Malpractice Claims Involving Plastic Surgeons in the United States. AB - Background: Medical malpractice lawsuits contribute directly and indirectly to the cost of healthcare in the United States. Reducing medical malpractice claims represents an often unrecognized opportunity for improving both the quality and affordability of healthcare. Objectives: The aim of this study was to better understand variables of the informed consent process that may contribute to reducing malpractice claims in plastic surgery. Methods: A prospective multiple choice questionnaire was distributed via email to all of the 1694 members of the American Society for Aesthetic Plastic Surgery (ASAPS) to evaluate attitudes and practices of informed consent in relation to medical malpractice. Results: A total of 129 questionnaires obtained from plastic surgeons were eligible for analysis (response rate 7.6%). Respondents who provided procedure-specific brochures to their patients were significantly less likely to be sued for medical malpractice (P = 0.004) than those who did not. Plastic surgeons that participated in malpractice carrier-required courses on avoiding medical malpractice litigation had a similarly significantly reduced likelihood of lawsuits. (P = 0.04). Conclusions: Variables that may reduce malpractice claims, and thereby both improve the quality and affordability of healthcare, include: (1) the use of procedure-specific patient education brochures; and (2) physician participation in malpractice insurance carrier-required courses. These findings should be of interest to physicians, hospitals, and insurance companies. PMID- 29040405 TI - The Balcony Technique of Breast Augmentation and Inverted-T Mastopexy With an Inferior Dermoglandular Flap. AB - Background: Optimal breast augmentation-mastopexy involves a reliable technique, fast recovery, minimal complications, and aesthetic results that are excellent and enduring. Objectives: The authors sought to determine whether the balcony technique of augmentation-mastopexy was safe and yielded satisfactory long-term outcomes in patients with breast ptosis and hypoplasia. Methods: The authors conducted a retrospective review of 207 patients who underwent subglandular augmentation and inverted-T mastopexy with a customized Wise keyhole resection pattern and an inferior flap. Patient satisfaction was assessed anonymously on a visual analog scale via a questionnaire administered 4 years postoperatively. Results: A total of 182 women received follow-up for 48 months and were included in statistical analyses. High levels of satisfaction were determined using Fischer exact test for breast shape, size, and symmetry, but not for other items, such as scar appearance, body perception, or self-esteem. The most common complications were Baker II capsular contracture and wound dehiscence. No patient experienced nipple loss or skin flap necrosis. Conclusions: The results of this long-term analysis demonstrate that the balcony technique of augmentation mastopexy is suitable for patients with breast ptosis and hypoplasia. Level of Evidence: 4. PMID- 29040406 TI - MATAM: reconstruction of phylogenetic marker genes from short sequencing reads in metagenomes. AB - Motivation: Advances in the sequencing of uncultured environmental samples, dubbed metagenomics, raise a growing need for accurate taxonomic assignment. Accurate identification of organisms present within a community is essential to understanding even the most elementary ecosystems. However, current high throughput sequencing technologies generate short reads which partially cover full-length marker genes and this poses difficult bioinformatic challenges for taxonomy identification at high resolution. Results: We designed MATAM, a software dedicated to the fast and accurate targeted assembly of short reads sequenced from a genomic marker of interest. The method implements a stepwise process based on construction and analysis of a read overlap graph. It is applied to the assembly of 16S rRNA markers and is validated on simulated, synthetic and genuine metagenomes. We show that MATAM outperforms other available methods in terms of low error rates and recovered fractions and is suitable to provide improved assemblies for precise taxonomic assignments. Availability and implementation: https://github.com/bonsai-team/matam. Contact: pierre.pericard@gmail.com or helene.touzet@univ-lille1.fr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29040408 TI - Partial anomalous left pulmonary artery. PMID- 29040409 TI - Towards dynamic genome-scale models. AB - The analysis of the dynamic behaviour of genome-scale models of metabolism (GEMs) currently presents considerable challenges because of the difficulties of simulating such large and complex networks. Bacterial GEMs can comprise about 5000 reactions and metabolites, and encode a huge variety of growth conditions; such models cannot be used without sophisticated tool support. This article is intended to aid modellers, both specialist and non-specialist in computerized methods, to identify and apply a suitable combination of tools for the dynamic behaviour analysis of large-scale metabolic designs. We describe a methodology and related workflow based on publicly available tools to profile and analyse whole-genome-scale biochemical models. We use an efficient approximative stochastic simulation method to overcome problems associated with the dynamic simulation of GEMs. In addition, we apply simulative model checking using temporal logic property libraries, clustering and data analysis, over time series of reaction rates and metabolite concentrations. We extend this to consider the evolution of reaction-oriented properties of subnets over time, including dead subnets and functional subsystems. This enables the generation of abstract views of the behaviour of these models, which can be large-up to whole genome in size and therefore impractical to analyse informally by eye. We demonstrate our methodology by applying it to a reduced model of the whole-genome metabolism of Escherichia coli K-12 under different growth conditions. The overall context of our work is in the area of model-based design methods for metabolic engineering and synthetic biology. PMID- 29040410 TI - RORalpha Coordinates Thalamic and Cortical Maturation to Instruct Barrel Cortex Development. AB - The retinoic acid-related orphan receptor alpha (RORalpha) is well-known for its role in cerebellar development and maturation as revealed in staggerer mice. However, its potential involvement in the development of other brain regions has hardly been assessed. Here, we describe a new role of RORalpha in the development of primary somatosensory maps. Staggerer mice showed a complete disruption of barrels in the somatosensory cortex and of barreloids in the thalamus. This phenotype results from a severe reduction of thalamocortical axon (TCA) branching and a defective maturation of layer IV cortical neurons during postnatal development. Conditional deletion of RORalpha was conducted in the thalamus or the cortex to determine the specific contribution of RORalpha in each of these structures to these phenotypes. This showed that RORalpha is cell-autonomously required in the thalamus for the organization of TCAs into periphery-related clusters and in the somatosensory cortex for the dendritic maturation of layer IV neurons. Microarray analyses revealed that Sema7a, Neph, and Adcy8 are RORalpha regulated genes that could be implicated in TCA and cortical maturation. Overall, our study outlines a new role of RORalpha for the coordinated maturation of the somatosensory thalamus and cortex during the assembly of columnar barrel structures. PMID- 29040407 TI - Genetic Reduction of Matrix Metalloproteinase-9 Promotes Formation of Perineuronal Nets Around Parvalbumin-Expressing Interneurons and Normalizes Auditory Cortex Responses in Developing Fmr1 Knock-Out Mice. AB - Abnormal sensory responses associated with Fragile X Syndrome (FXS) and autism spectrum disorders include hypersensitivity and impaired habituation to repeated stimuli. Similar sensory deficits are also observed in adult Fmr1 knock-out (KO) mice and are reversed by genetic deletion of Matrix Metalloproteinase-9 (MMP-9) through yet unknown mechanisms. Here we present new evidence that impaired development of parvalbumin (PV)-expressing inhibitory interneurons may underlie hyper-responsiveness in auditory cortex of Fmr1 KO mice via MMP-9-dependent regulation of perineuronal nets (PNNs). First, we found that PV cell development and PNN formation around GABAergic interneurons were impaired in developing auditory cortex of Fmr1 KO mice. Second, MMP-9 levels were elevated in P12-P18 auditory cortex of Fmr1 KO mice and genetic reduction of MMP-9 to WT levels restored the formation of PNNs around PV cells. Third, in vivo single-unit recordings from auditory cortex neurons showed enhanced spontaneous and sound driven responses in developing Fmr1 KO mice, which were normalized following genetic reduction of MMP-9. These findings indicate that elevated MMP-9 levels contribute to the development of sensory hypersensitivity by influencing formation of PNNs around PV interneurons suggesting MMP-9 as a new therapeutic target to reduce sensory deficits in FXS and potentially other autism spectrum disorders. PMID- 29040411 TI - HANDOC: A Handy Score to Determine the Need for Echocardiography in Non-beta Hemolytic Streptococcal Bacteremia. AB - Background: Non-beta-hemolytic streptococci (NBHS) can cause infective endocarditis (IE). Echocardiography is used to diagnose IE, but it is not known which patients with NBHS bacteremia should undergo echocardiography. Method: Medical records of patients with NBHS bacteremia in southern Sweden from 2012 to 2014 were studied retrospectively. The patients were divided into 2 cohorts. In the first, correlations between the reported data and IE were studied. These variables were used to construct the HANDOC score, which was then validated in the second cohort. Results: Three hundred thirty-nine patients with NBHS bacteremia were included in the first cohort, of whom 26 fulfilled the criteria for IE. Several factors differed significantly between the patients with IE and those without. Among these variables, the presence of Heart murmur or valve disease; Aetiology with the groups of Streptococcus mutans, Streptococcus bovis, Streptococcus sanguinis, or Streptococcus anginosus; Number of positive blood cultures >=2; Duration of symptoms of 7 days or more; Only 1 species growing in blood cultures; and Community-acquired infection were chosen to form the HANDOC score. With a cutoff between 2 and 3 points, HANDOC had a sensitivity of 100% and specificity of 73% in the first cohort. When tested in the validation cohort (n = 399), the sensitivity was 100% and the specificity 76%. Conclusions: HANDOC can be used in to identify patients with NBHS bacteremia who have a risk of IE so low that echocardiography can be omitted; therefore, its implementation might reduce the use of echocardiography. PMID- 29040413 TI - Bilateral cavitary multidrug- or extensively drug-resistant tuberculosis: role of surgery. AB - OBJECTIVES: Cavitary disease and bilateral lesions are among the risk factors for poor outcome of pulmonary tuberculosis (TB). Our aim was to explore the value and limits of surgery in patients with advanced TB. METHODS: A retrospective study of 57 consecutive patients who underwent thoracic surgery for culture-positive bilateral cavitary pulmonary TB was performed. Forty-four (77.2%) patients were men and 13 (22.8%) patients were women; their ages were in the range of 18-61 years. Twenty-two (38.6%) patients had multidrug-resistant (MDR) TB and 35 (61.4%) patients had extensively drug-resistant (XDR) TB confirmed with cultures. On admission, 49 (86.0%) patients had sputum smear microscopy positive for acid fast bacilli. The main indication for surgery was treatment failure manifested as contagious persisting cavities despite best available therapy. The surgical procedures included combinations of pulmonary resections of different levels, selective thoracoplasties and/or endobronchial valve treatment. The operations were performed consecutively, starting with the most affected side. TB therapy preceded the operation for a minimum of 6 months and was continued after the operation on the basis of the patient's susceptibility to drugs for Mycobacterium tuberculosis. RESULTS: We performed 121 operations: 42 in 22 patients with MDR TB (1.9 operations per patient) and 79 procedures in 35 patients with XDR TB (2.3 operations per patient). No deaths occurred in the 1st year. Two late deaths followed, 1 unrelated to and 1 due to TB progression. Ten major complications (1 complication per patient) developed: main bronchus stump fistula (n = 4), prolonged air leak (n = 3), respiratory failure (n = 2) and wound seroma (n = 1). At the 1-month follow-up visit, sputum smear conversion was observed in 11 (68.8%) patients with MDR and in 15 (45.5%) patients with XDR TB. At the late (20 36 months) follow-up visit, culture negativity was achieved in 21 (95.5%) patients with MDR TB and in 23 (65.7%) patients with XDR TB (P = 0.015). CONCLUSIONS: Thoracic surgery may significantly improve patients' outcomes and even result in a cure in a good portion of patients with bilateral cavitary MDR and XDR TB and should be considered as the essential element of multimodality treatment for MDR and XDR TB, even in patients with bilateral cavitary disease and borderline respiratory reserves. PMID- 29040412 TI - Random Recurrent Networks Near Criticality Capture the Broadband Power Distribution of Human ECoG Dynamics. AB - Brain electric field potentials are dominated by an arrhythmic broadband signal, but the underlying mechanism is poorly understood. Here we propose that broadband power spectra characterize recurrent neural networks of nodes (neurons or clusters of neurons), endowed with an effective balance between excitation and inhibition tuned to keep the network on the edge of dynamical instability. These networks show a fast mode reflecting local dynamics and a slow mode emerging from distributed recurrent connections. Together, the 2 modes produce power spectra similar to those observed in human intracranial EEG (i.e., electrocorticography, ECoG) recordings. Moreover, such networks convert spatial input correlations across nodes into temporal autocorrelation of network activity. Consequently, increased independence between nodes reduces low-frequency power, which may explain changes observed during behavioral tasks. Lastly, varying network coupling causes activity changes that resemble those observed in human ECoG across different arousal states. The model links macroscopic features of empirical ECoG power to a parsimonious underlying network structure, and suggests mechanisms for changes observed across behavioral and arousal states. This work provides a computational framework to generate and test hypotheses about cellular and network mechanisms underlying whole brain electrical dynamics, their variations across states, and potential alterations in brain diseases. PMID- 29040414 TI - Luma is not essential for murine cardiac development and function. AB - Aims: Luma is a recently discovered, evolutionarily conserved protein expressed in mammalian heart, which is associated with the LInker of Nucleoskeleton and Cytoskeleton (LINC) complex. The LINC complex structurally integrates the nucleus and the cytoplasm and plays a critical role in mechanotransduction across the nuclear envelope. Mutations in several LINC components in both humans and mice result in various cardiomyopathies, implying they play essential, non-redundant roles. A single amino acid substitution of serine 358 to leucine (S358L) in Luma is the unequivocal cause of a distinct form of arrhythmogenic cardiomyopathy. However, the role of Luma in heart has remained obscure. In addition, it also remains to be determined how the S358L mutation in Luma leads to cardiomyopathy. Methods and results: To determine the role of Luma in the heart, we first determined the expression pattern of Luma in mouse heart. Luma was sporadically expressed in cardiomyocytes throughout the heart, but was highly and uniformly expressed in cardiac fibroblasts and vascular smooth muscle cells. We also generated germline null Luma mice and discovered that germline null mutants were viable and exhibited normal cardiac function. Luma null mice also responded normally to pressure overload induced by transverse aortic constriction. In addition, localization and expression of other LINC complex components in both cardiac myocytes and fibroblasts was unaffected by global loss of Luma. Furthermore, we also generated and characterized Luma S358L knock-in mice, which displayed normal cardiac function and morphology. Conclusion: Our data suggest that Luma is dispensable for murine cardiac development and function and that the Luma S358L mutation alone may not cause cardiomyopathy in mice. PMID- 29040415 TI - Reply to Lee and Howden. PMID- 29040417 TI - Neonatal immune activation depletes the ovarian follicle reserve and alters ovarian acute inflammatory mediators in neonatal rats. AB - Normal ovarian development is crucial for female reproductive success and longevity. Interruptions to the delicate process of initial folliculogenesis may lead to ovarian dysfunction. We have previously demonstrated that an early life immune challenge in the rat, induced by administration of lipopolysaccharide (LPS) on postnatal day (PND) 3 and 5, depletes ovarian follicle reserve long term. Here, we hypothesized that this neonatal immune challenge leads to an increase in peripheral and ovarian inflammatory signaling, contributing to an acute depletion of ovarian follicles. Morphological analysis of neonatal ovaries indicated that LPS administration significantly depleted PND 5 primordial follicle populations and accelerated follicle maturation. LPS exposure upregulated circulating interleukin 6, tumor necrosis factor alpha (TNFa), and C reactive protein on PND 5, and upregulated ovarian mRNA expression of Tnfa, mitogen-activated protein kinase 8 (Mapk8/Jnk1), and growth differentiation factor 9 (Gdf9) (P < 0.05). Mass spectrometry and cell signaling pathway analysis indicated upregulation of cellular pathways associated with acute phase signaling, and cellular survival and assembly. Apoptosis assessed by terminal deoxynucleotidyl transferase dUTP nick end labeling indicated significantly increased positive staining in the ovaries of LPS-treated neonates. These findings suggest that increased proinflammatory signaling within the neonatal ovary may be responsible for the LPS-induced depletion of the primordial follicle pool. These findings also have implications for female reproductive health, as the ovarian reserve is a major determinate of female reproductive longevity. PMID- 29040416 TI - Fractionating the Neurocognitive Mechanisms Underlying Working Memory: Independent Effects of Dopamine and Parkinson's Disease. AB - Deficits in working memory (WM) in Parkinson's disease (PD) are often considered to be secondary to dopaminergic depletion. However, the neurocognitive mechanisms by which dopamine causes these deficits remain highly contested, and PD is now also known to be associated with nondopaminergic pathology. Here, we examined how PD and dopaminergic medication modulate three components of WM: maintenance over time, updating contents with new information and making memories distracter resistant. Compared with controls, patients were disproportionately impaired when retaining information for longer durations. By applying a probabilistic model, we were able to reveal that the source of this error was selectively due to precision of memory representations degrading over time. By contrast, replenishing dopamine levels in PD improved executive control over both the ability to ignore and update, but did not affect maintenance of information across time. This was due to a decrease in guess responses, consistent with the view that dopamine serves to prevent WM representations being corrupted by irrelevant information, but has no impact on information decay. Cumulatively, these results reveal a dissociation in the neural mechanisms underlying poor WM: whereas dopamine reduces interference, nondopaminergic systems in PD appear to modulate processes that prevent information decaying more quickly over time. PMID- 29040418 TI - Translational medicine in the Age of Big Data. AB - The ability to collect, store and analyze massive amounts of molecular and clinical data is fundamentally transforming the scientific method and its application in translational medicine. Collecting observations has always been a prerequisite for discovery, and great leaps in scientific understanding are accompanied by an expansion of this ability. Particle physics, astronomy and climate science, for example, have all greatly benefited from the development of new technologies enabling the collection of larger and more diverse data. Unlike medicine, however, each of these fields also has a mature theoretical framework on which new data can be evaluated and incorporated-to say it another way, there are no 'first principals' from which a healthy human could be analytically derived. The worry, and it is a valid concern, is that, without a strong theoretical underpinning, the inundation of data will cause medical research to devolve into a haphazard enterprise without discipline or rigor. The Age of Big Data harbors tremendous opportunity for biomedical advances, but will also be treacherous and demanding on future scientists. PMID- 29040420 TI - The Importance of Photographic Standardization in Evaluating Microfocused Ultrasound Facial Skin Treatments. PMID- 29040421 TI - Effect of Use of Platelet-Rich Plasma (PRP) in Skin with Intrinsic Aging Process. AB - Background: In previous papers, we demonstrated that the treatment of human photoaged skin with stromal-vascular fraction-enriched fat or expanded adipose derived stem cells showed a decrease of elastosis and the appearance of new oxytalan elastic fibers in dermis and an increase in the vascular network. The utilization of fat plus platelet-rich plasma (PRP) led to an increase in the vascular permeability and reactivity of the nervous component. Objectives: The purpose of this study was to analyze the histologic and ultrastructural changes of human skin after the injection of only PRP in the retroauricular area that was not exposed to sun and did not present the photoaging process, in comparison with our previous results. Methods: This study was performed in 13 patients who were candidates for facelift and whose ages ranged between 45 and 65 years. The PRP injection was performed in the mastoidea area. Fragments of skin were removed before and 3 months after treatment and analyzed by optical and electron microscopy. Results: After the injection of PRP, we observed an increase of reticular dermis thickness because of the deposition of elastic fibers and collagen, with a fibrotic aspect. A modified pattern of adipose tissue was also found at the dermohypodermal junction. Significative regenerative aspects were not found at histologic and ultrastructural analysis. The presence of foci of moderate inflammation and microangiopathy were observed. Conclusions: Treatment with PRP increased reticular dermis thickness with a fibrotic aspect. In the long term, the presence of inflammation and microangiopathy caused by PRP injection could lead to trophic alteration of the skin and the precocious aging process. Level of Evidence 4: PMID- 29040419 TI - High Rates of Human Fecal Carriage of mcr-1-Positive Multidrug-Resistant Enterobacteriaceae Emerge in China in Association With Successful Plasmid Families. AB - Background: mcr-1-mediated colistin resistance in Enterobacteriaceae is concerning, as colistin is used in treating multidrug-resistant Enterobacteriaceae infections. We identified trends in human fecal mcr-1 positivity rates and colonization with mcr-1-positive, third-generation cephalosporin-resistant (3GC-R) Enterobacteriaceae in Guangzhou, China, and investigated the genetic contexts of mcr-1 in mcr-1-positive 3GC-R strains. Methods: Fecal samples were collected from in-/out-patients submitting specimens to 3 hospitals (2011-2016). mcr-1 carriage trends were assessed using iterative sequential regression. A subset of mcr-1-positive isolates was sequenced (whole genome sequencing [WGS], Illumina), and genetic contexts (flanking regions, plasmids) of mcr-1 were characterized. Results: Of 8022 fecal samples collected, 497 (6.2%) were mcr-1 positive, and 182 (2.3%) harbored mcr-1-positive 3GC-R Enterobacteriaceae. We observed marked increases in mcr-1 (0% [April 2011] to 31% [March 2016]) and more recent (since January 2014; 0% [April 2011] to 15% [March 2016]) increases in human colonization with mcr-1-positive 3GC-R Enterobacteriaceae (P < .001). mcr-1-positive 3GC-R isolates were commonly multidrug resistant. WGS of mcr-1-positive 3GC-R isolates (70 Escherichia coli, 3 Klebsiella pneumoniae) demonstrated bacterial strain diversity; mcr-1 in association with common plasmid backbones (IncI, IncHI2/HI2A, IncX4) and sometimes in multiple plasmids; frequent mcr-1 chromosomal integration; and high mobility of the mcr-1-associated insertion sequence ISApl1. Sequence data were consistent with plasmid spread among animal/human reservoirs. Conclusions: The high prevalence of mcr-1 in multidrug-resistant E. coli colonizing humans is a clinical threat; diverse genetic mechanisms (strains/plasmids/insertion sequences) have contributed to the dissemination of mcr-1, and will facilitate its persistence. PMID- 29040422 TI - Pharmacogenetics: a general review on progress to date. AB - Background: Pharmacogenetics is not a new subject area but its relevance to drug prescribing has become clearer in recent years due to developments in gene cloning and DNA genotyping and sequencing. Sources of data: There is a very extensive published literature concerned with a variety of different genes and drugs. Areas of agreement: There is general agreement that pharmacogenetic testing is essential for the safe use of drugs such as the thiopurines and abacavir. Areas of controversy: Whether pharmacogenetic testing should be applied more widely including to the prescription of certain drugs such as warfarin and clopidogrel where the overall benefit is less clear remains controversial. Growing points: Personal genotype information is increasingly being made available directly to the consumer. This is likely to increase demand for personalized prescription and mean that prescribers need to take pharmacogenetic information into account. Projects such as 100 000 genomes are providing complete genome sequences that can form part of a patient medical record. This information will be of great value in personalized prescribing. Areas timely for developing research: Development of new drugs targeting particular genetic risk factors for disease. These could be prescribed to those with an at risk genotype. PMID- 29040424 TI - Body Contouring Surgery and the Maintenance of Weight-Loss Following Roux-En-Y Gastric Bypass: A Retrospective Study. AB - Background: Bariatric surgery leads to significant weight loss with reduced morbidity and mortality. However, excess skin as a consequence of weight loss represents a major problem, impacting upon patient's functionality with potential negative effects on weight loss. Objectives: We evaluated the effect of body contouring surgery on weight-loss maintenance following bariatric surgery. Methods: We undertook a retrospective analysis of patients undergoing Roux-en-Y gastric bypass (RYGB) +/- body-contouring surgery (BC). The control group (n = 61) received RYGB, the test group (n = 30) received RYGB+BC 12 to 18 months after bariatric surgery. Each RYGB+BC patient was matched to two control patients for age, sex, glycaemic status, and weight on day of surgery. Per cent weight loss (%WL) was calculated at 3, 6, 12, 24, 36, 48, and 60 months post-RYGB for both groups. Results: The %WL was similar at 3, 6, and 12 months post-RYGB. At 24 months, %WL was 35.6% in the RYGB+BC group and 30.0% in the RYGB group (P < 0.05). At 36 months, the RYGB+BC group maintained their weight loss (%WL 33.0%), in contrast, the RYGB gained weight (%WL = 27.3%, P < 0.05). This trend continued (RYGB+BC vs RYGB) at 48 months (%WL 30.8% vs 27.0%) and at 60 months (%WL 32.2% vs 22.7%, P < 0.05). Conclusions: Our results suggest patients who undergo body contouring after bariatric surgery are able to lose significantly more weight and maintain weight loss at five years of follow up compared to those undergoing bariatric surgery alone. PMID- 29040423 TI - Therapeutic strategies utilizing SDF-1alpha in ischaemic cardiomyopathy. AB - Heart failure is rapidly increasing in prevalence and will redraw the global landscape for cardiovascular health. Alleviating and repairing cardiac injury associated with myocardial infarction (MI) is key to improving this burden. Homing signals mobilize and recruit stem cells to the ischaemic myocardium where they exert beneficial paracrine effects. The chemoattractant cytokine SDF-1alpha and its associated receptor CXCR4 are upregulated after MI and appear to be important in this context. Activation of CXCR4 promotes both cardiomyocyte survival and stem cell migration towards the infarcted myocardium. These effects have beneficial effects on infarct size, and left ventricular remodelling and function. However, the timing of endogenous SDF-1alpha release and CXCR4 upregulation may not be optimal. Furthermore, current ELISA-based assays cannot distinguish between active SDF-1alpha, and SDF-1alpha inactivated by dipeptidyl peptidase 4 (DPP4). Current therapeutic approaches aim to recruit the SDF-1alpha CXCR4 pathway or prolong SDF-1alpha life-time by preventing its cleavage by DPP4. This review assesses the evidence supporting these approaches and proposes SDF 1alpha as an important confounder in recent studies of DPP4 inhibitors. PMID- 29040425 TI - Apparent Age is a Reliable Assessment Tool in 20 Facelift Patients. AB - Background: Although the literature is replete with favorable facelift results, there are few validated facial rejuvenation outcome measures. Apparent age (AA), a visual estimate of age by objective observers, has been utilized in several studies; although attractive, AA lacks validation. Objective: The aim of this study is to examine the reliability of AA, highlighting the importance of the exclusive use of validated outcome measures in future studies. Methods: Ten blinded reviewers assessed pre- and postoperative photographs of 32 patients who underwent facelift. Each reviewer completed 3 surveys at 3-month intervals composed of 40 randomly ordered photos; totaling 1200 photographs assigned an AA. The intra-class correlation coefficient was classified as "excellent," "good," "fair," or "poor." The accuracy of assigned AA, agreement within 5 years, and reduction in AA were also evaluated. Results: The mean difference of preoperative true age from assigned AA was 2.74 +/- 4.36 years. Forty-three percent of raters were within 5-years (+/-2.5) of the mean. Intra-rater reliability preoperatively and postoperatively were 0.77 (95% CI, 0.82-0.72) and 0.75 (95% CI, 0.79-0.71), respectively. Inter-rater reliability preoperatively was 0.98 (95% CI, 0.99 0.96), while postoperatively was 0.95 (95% CI, 0.99-0.95). Mean AA reduction was 5.23 +/- 2.81, with an intra-rater reliability 0.15 (95% CI, 0.03-0.34) and inter rater reliability 0.65 (95% CI, 0.84-0.38). Conclusion: Using current statistical measures and analysis, AA is an acceptable tool for pre- and postoperative facial evaluation when assessed by a group of 10 reviewers. Therefore, apparent age represents a reliable and valid objective observer assigned measure for evaluation of facelift outcomes. PMID- 29040426 TI - Commentary on: A Meta-Analysis of the Effects of Abdominoplasty Modifications on the Incidence of Postoperative Seroma. PMID- 29040427 TI - What Is the End of Life Period? Trajectories and Characterization Based on Primary Caregiver Reports. AB - Background: As the population lives longer, end of life (EOL) is emerging as a distinct life phase, about which there is still limited understanding. Characterizing this important period is vital for clarifying issues regarding trajectory and decline at EOL and for health service planning on an institutional, communal, and societal level. In this article, we aim to characterize the EOL period, examining the duration and number of EOL stages, as well as functional, attitudinal, and emotional trajectories. Methods: In this cross-sectional study, 70 primary caregivers of deceased persons were interviewed. Standardized rates of functional, attitudinal, and emotional change across the EOL period were calculated. Frequencies were compared using the McNemar statistical test. Results: EOL period was found to have a median length of 3.25 years, and an average of approximately three progressive stages. The duration of EOL stages tended to decrease as death approached. Unexpected events (eg new medical diagnosis/accident) served as the precipitating event for the EOL period for approximately half of the deceased persons, and changes in existing conditions (eg health status/cognitive state) were also reported to precipitate EOL for a similar proportion. Reports of functionality across stages found the steepest decline in the "physical" domain and the most moderate decline in the "social" domain. With each stage, positive indicators, such as "will to live," showed a progressive decline, whereas negative indicators, including "suffering" and "dependence level," progressively increased. Conclusions: Results help characterize EOL trajectories and should inform care planning and decision making at various levels. In addition, they suggest a methodology for better understanding EOL. PMID- 29040428 TI - Understanding the Promises and Hurdles of Metagenomic Next-Generation Sequencing as a Diagnostic Tool for Infectious Diseases. AB - Agnostic metagenomic next-generation sequencing (mNGS) has emerged as a promising single, universal pathogen detection method for infectious disease diagnostics. This methodology allows for identification and genomic characterization of bacteria, fungi, parasites, and viruses without the need for a priori knowledge of a specific pathogen directly from clinical specimens. Although there are increasing reports of mNGS successes, several hurdles need to be addressed, such as differentiation of colonization from infection, extraneous sources of nucleic acid, method standardization, and data storage, protection, analysis, and interpretation. As more commercial and clinical microbiology laboratories develop mNGS assays, it is important for treating practitioners to understand both the power and limitations of this method as a diagnostic tool for infectious diseases. PMID- 29040430 TI - Transcriptomic Landscape of Treatment-Naive Ulcerative Colitis. AB - Background and Aims: Ulcerative colitis [UC] is a chronic inflammatory disease that effects the gastrointestinal tract and is considered one of the most prominent and common forms of inflammatory bowel disease [IBD]. This study aimed to define and describe the entire transcriptomic landscape in a well-stratified, treatment-naive UC patient population compared with control patients by using next-generation technology, RNA-Seq. Methods: Mucosal biopsies from treatment naive UC patients [n = 14], and healthy controls [n = 16] underwent RNA-Seq. Principal component analysis [PCA], cell deconvolution methods, and diverse statistical methods were applied to obtain and characterise a dataset of significantly differentially expressed genes [DEGs]. Results: Analyses revealed 1480 significantly DEGs in treatment-naive UC when compared with controls. Cell populations of monocytes, T cells, neutrophils, B cells/ lymphoid cells, and myeloid cells were increased during inflammation, whereas the fraction of epithelial cells were reduced in UC, which is reflected by the DEGs; 79 DEGs were identified as IBD susceptibility genes, and 58 DEGs were expressed in a gender specific manner. MUC5B, REG3A, DEFA5, and IL33 might be considered as colorectal cancer [CRC] risk factors following UC in males. AQP9 together with CLDN2 may have a role regulating tissue-specific physiological properties in tight junctions in UC. An additional functional role for AQP9 in the synthesis and/or the function of mucus can be implied. Conclusions: This study reveals new potential players in UC pathogenesis in general, and provides evidence for a gender-dependent pathogenesis for UC. These results can be useful for the development of personalised treatment strategies for UC in the future. PMID- 29040429 TI - The Role of GLP-1 in the Metabolic Success of Bariatric Surgery. AB - Two of the most popular bariatric procedures, vertical sleeve gastrectomy (VSG) and Roux-en-Y gastric bypass (RYGB), are commonly considered metabolic surgeries because they are thought to affect metabolism in a weight loss-independent manner. In support of this classification, improvements in glucose homeostasis, insulin sensitivity, and even discontinuation of type 2 diabetes mellitus (T2DM) medication can occur before substantial postoperative weight loss. The mechanisms that underlie this effect are unknown. However, one of the common findings after VSG and RYGB in both animal models and humans is the sharp postprandial rise in several gut peptides, including the incretin and satiety peptide glucagonlike peptide-1 (GLP-1). The increase in endogenous GLP-1 signaling has been considered a primary pathway leading to postsurgical weight loss and improvements in glucose metabolism. However, the degree to which GLP-1 and other gut peptides are responsible for the metabolic successes after bariatric surgery is continually debated. In this review we discuss the mechanisms underlying the increase in GLP 1 and its potential role in the metabolic improvements after bariatric surgery, including remission of T2DM. Understanding the role of changes in gut peptides, or lack thereof, will be crucial in understanding the critical factors necessary for the metabolic success of bariatric surgery. PMID- 29040431 TI - Prevention of breast cancer-induced osteolytic bone resorption by benzyl isothiocyanate. AB - Osteolytic bone resorption is the primary cause of pain and suffering (e.g. pathological bone fracture) in women with metastatic breast cancer. The current standard of care for patients with bone metastasis for reducing the incidence of skeletal complications includes bisphosphonates and a humanized antibody (denosumab). However, a subset of patients on these therapies still develops new bone metastasis or experiences adverse effects. Moreover, some bisphosphonates have poor oral bioavailability. Therefore, orally-bioavailable and non-toxic inhibitors of breast cancer-induced osteolytic bone resorption are still clinically desirable. We have shown previously that benzyl isothiocyanate (BITC) decreases the incidence of breast cancer in a transgenic mouse model without any side effects. The present study provides in vivo evidence for inhibition of breast cancer-induced osteolytic bone resorption by BITC. Plasma achievable doses of BITC (0.5 and 1 MUM) inhibited in vitro osteoclast differentiation induced by co-culture of osteoclast precursor cells (RAW264.7) and breast cancer cells representative of different subtypes. This effect was accompanied by downregulation of key mediators of osteoclast differentiation, including receptor activator of nuclear factor-kappaB ligand and runt-related transcription factor 2 (RUNX2), in BITC-treated breast cancer cells. Doxycycline-inducible knockdown of RUNX2 augmented BITC-mediated inhibition of osteoclast differentiation. Oral administration of 10 mg BITC/kg body weight, 5 times per week, inhibited MDA-MB 231-induced skeletal metastasis multiplicity by ~81% when compared with control (P = 0.04). The present study indicates that BITC has the ability to inhibit breast cancer-induced osteolytic bone resorption in vivo. PMID- 29040432 TI - Machine learning accelerates MD-based binding pose prediction between ligands and proteins. AB - Motivation: Fast and accurate prediction of protein-ligand binding structures is indispensable for structure-based drug design and accurate estimation of binding free energy of drug candidate molecules in drug discovery. Recently, accurate pose prediction methods based on short Molecular Dynamics (MD) simulations, such as MM-PBSA and MM-GBSA, among generated docking poses have been used. Since molecular structures obtained from MD simulation depend on the initial condition, taking the average over different initial conditions leads to better accuracy. Prediction accuracy of protein-ligand binding poses can be improved with multiple runs at different initial velocity. Results: This paper shows that a machine learning method, called Best Arm Identification, can optimally control the number of MD runs for each binding pose. It allows us to identify a correct binding pose with a minimum number of total runs. Our experiment using three proteins and eight inhibitors showed that the computational cost can be reduced substantially without sacrificing accuracy. This method can be applied for controlling all kinds of molecular simulations to obtain best results under restricted computational resources. Availability and implementation: Code and data are available on GitHub at https://github.com/tsudalab/bpbi. Contact: terayama@cbms.k.u-tokyo.ac.jp or tsuda@k.u-tokyo.ac.jp. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29040433 TI - Low end-tidal CO2 as a real-time severity marker of intra-anaesthetic acute hypersensitivity reactions. AB - Background: Prompt diagnosis of intra-anaesthetic acute hypersensitivity reactions (AHR) is challenging because of the possible absence and/or difficulty in detecting the usual clinical signs and because of the higher prevalence of alternative diagnoses. Delayed epinephrine administration during AHR, because of incorrect/delayed diagnosis, can be associated with poor prognosis. Low end-tidal CO2 (etCO2) is known to be linked to low cardiac output. Yet, its clinical utility during suspected intra-anaesthetic AHR is not well documented. Methods: Clinical data from the 86 patients of the Neutrophil Activation in Systemic Anaphylaxis (NASA) multicentre study were analysed. Consenting patients with clinical signs consistent with intra-anaesthetic AHR to a neuromuscular blocking agent were included. Severe AHR was defined as a Grade 3-4 of the Ring and Messmer classification. Causes of AHR were explored following recommended guidelines. Results: Among the 86 patients, 50% had severe AHR and 69% had a confirmed/suspected IgE-mediated event. Occurrence and minimum values of arterial hypotension, hypocapnia and hypoxaemia increased significantly with the severity of AHR. Low etCO2 was the only factor able to distinguish mild [median 3.5 (3.2;3.9) kPa] from severe AHR [median 2.4 (1.6;3.0) kPa], without overlap in inter-quartile range values, with an area under the receiver operator characteristic curve of 0.92 [95% confidence interval: 0.79-1.00]. Among the 41% of patients who received epinephrine, only half received it as first-line therapy despite international guidelines. Conclusions: An etCO2 value below 2.6 kPa (20 mm Hg) could be useful for prompt diagnosis of severe intra-anaesthetic AHR, and could facilitate early treatment with titrated doses of epinephrine. Clinical trial registration: NCT01637220. PMID- 29040434 TI - Differential Processing of Isolated Object and Multi-item Pop-Out Displays in LIP and PFC. AB - Objects that are highly distinct from their surroundings appear to visually "pop out." This effect is present for displays in which: (1) a single cue object is shown on a blank background, and (2) a single cue object is highly distinct from surrounding objects; it is generally assumed that these 2 display types are processed in the same way. To directly examine this, we applied a decoding analysis to neural activity recorded from the lateral intraparietal (LIP) area and the dorsolateral prefrontal cortex (dlPFC). Our analyses showed that for the single-object displays, cue location information appeared earlier in LIP than in dlPFC. However, for the display with distractors, location information was substantially delayed in both brain regions, and information first appeared in dlPFC. Additionally, we see that pattern of neural activity is similar for both types of displays and across different color transformations of the stimuli, indicating that location information is being coded in the same way regardless of display type. These results lead us to hypothesize that 2 different pathways are involved processing these 2 types of pop-out displays. PMID- 29040436 TI - Academic Productivity: A Guide for Students, Residents, and Fellows. PMID- 29040438 TI - Geometric predictors of left ventricular outflow tract obstruction in patients with hypertrophic cardiomyopathy: a 3D computed tomography analysis. AB - Aims: To establish geometric predictors of left ventricular outflow tract obstruction (LVOTO) in hypertrophic cardiomyopathy (HCM) patients by use of cardiac computed tomography (CT). Methods and results: A total of 141 consecutive patients with HCM who underwent cardiac CT comprised the analytic sample. The degree, pattern, and extent of left ventricular (LV) hypertrophy were evaluated using 3D CT. Abnormality of papillary muscle (PM), mitral valve, and aorto-mitral angle were evaluated quantitatively. Multivariable logistic regression analysis and sensitivity analysis were performed to reliably identify predictors of LVOTO. LVOTO was present among 40 (28.4%) patients. Those with LVOTO displayed a higher prevalence for having a spiral pattern of LV hypertrophy (e.g. 51 vs. 16%, P < 0.001), a longer anterior mitral leaflet (AML) length (e.g. 18.0 vs. 15.6 mm, P = 0.007), and a longer distance from lateral PM base to LV apex (e.g. 26.4 vs. 22.0 mm, P < 0.001), as compared with the non-LVOTO group. Multivariable logistic regression revealed all three variables [i.e. spiral pattern (95% confidence interval (CI), 3.75, 1.59-8.84); AML length (95% CI, 1.20, 1.03-1.40); the distance between lateral PM base and LV apex (95% CI, 1.09, 1.01-1.19)] retained significance after adjustment for numerous covariates. Conclusion: Spiral pattern of LV hypertrophy, the length of AML, and the distance between lateral PM base and LV apex were independent predictors of LVOTO in patients with HCM. PMID- 29040437 TI - Sperm Release at Spermiation Is Regulated by Changes in the Organization of Actin and Microtubule-Based Cytoskeletons at the Apical Ectoplasmic Specialization-A Study Using the Adjudin Model. AB - The mechanism that regulates sperm release at spermiation is unknown. Herein, we used an animal model wherein rats were treated with adjudin, 1-(2,4 dichlorobenzyl)-1H-indazole-3-carbohydrazide, via oral gavage to induce premature release of elongating/elongated spermatids, followed by round spermatids and spermatocytes. Spermatid release mimicking spermiation occurred within 6 to 12 hours following adjudin treatment and, by 96 hours, virtually all tubules were devoid of elongating/elongated spermatids. Using this model, we tracked the organization of F-actin and microtubules (MTs) by immunofluorescence microscopy, and the association of actin or MT regulatory proteins that either promote or demolish cytoskeletal integrity through changes in the organization of actin microfilaments or MTs by coimmunoprecipitation. Adjudin treatment induced an increase in the association of (1) epidermal growth factor receptor pathway substrate 8 (an actin barbed-end capping and bundling protein) or formin 1 (an actin nucleator) with actin and (2) end-binding protein 1 (an MT stabilizing protein) with MT shortly after adjudin exposure (at 6 hours), in an attempt to maintain spermatid adhesion to the Sertoli cell at the apical ectoplasmic specialization (ES). However, this was followed by a considerable decline of their steady-state protein levels, replacing with an increase in association of (1) actin-related protein 3 (a branched actin nucleator that converts actin filaments into a branched/unbundled network) with actin and (2) MT affinity regulating kinase 4 (an MT destabilizing protein kinase) with MTs by 12 hours after adjudin treatment. These latter changes thus promoted actin and MT disorganization, leading to apical ES disruption and the release of elongating/elongated spermatids, mimicking spermiation. In summary, spermiation is a cytoskeletal-dependent event, involving regulatory proteins that modify cytoskeletal organization. PMID- 29040439 TI - Eicosapentaenoic acid attenuates obesity-related hepatocellular carcinogenesis. AB - Non-alcoholic fatty liver disease (NAFLD), the hepatic manifestation of obesity, is an emerging risk factor for hepatocellular carcinoma (HCC). Accumulating evidence has shown that chronic inflammation represents a plausible link between obesity and HCC and that the pro-inflammatory cytokine interleukin (IL)-6 contributes to the development of obesity-related HCC. In the present study, we aimed to examine the therapeutic potential of the omega-3 polyunsaturated fatty acid, eicosapentaenoic acid (EPA), which exerts anti-inflammatory effects. The results showed that the development of carcinogen-induced HCC was significantly less in mice fed a high-fat diet (HFD) supplemented with EPA than in those fed HFD only, suggesting that EPA attenuates the development of obesity-related HCC. Although EPA did not appear to affect obesity-linked inflammation, it suppressed the activation of the pro-tumorigenic IL-6 effector STAT3, contributing to the inhibition of tumor growth. These findings suggest a clinical implication of EPA as a treatment for obesity-related HCC. PMID- 29040441 TI - Advancing precision medicine for the treatment of long-QT syndrome type 2: shedding light on lumacaftor. PMID- 29040440 TI - Trends in lifestyle among three cohorts of adults aged 55-64 years in 1992/1993, 2002/2003 and 2012/2013. AB - Background: Unhealthy lifestyle factors, such as obesity, smoking, excessive alcohol consumption and physical inactivity, are associated with increased morbidity and mortality risk, even in older age. We investigated trends in lifestyle among three cohorts of adults aged 55-64 years from the Netherlands. Methods: Data from the Longitudinal Aging Study Amsterdam were used. This study consisted of three randomly selected samples of men and women. Lifestyle data were collected in 1992/1993 (cohort 1, n = 988), in 2002/2003 (cohort 2, n = 1002) and in 2012/2013 (cohort 3, n = 1023). Trends in lifestyle across cohorts were tested using multivariable regression analyses. Results: Complete lifestyle data were available for 834 participants from cohort 1, 861 from cohort 2 and 845 from cohort 3. Among men, but not in women, mean BMI and prevalence of obesity increased over time. The mean minutes per day spent being physically active decreased among both men and women, from 130 +/- 107 and 230 +/- 122 (1992/1993) to 114 +/- 100 and 192 +/- 109 (2002/2003), and 126 +/- 98 and 187 +/- 112 (2012/2013), respectively. The percentage of men and women defined as excessive drinkers (>7 alcoholic consumptions per week) increased from 54.9%, 62.3% to 65.4% (men) and 22.7%, 36.1% to 37.4% (women), in 1992/1993, 2002/2003 and 2012/2013, respectively. The percentage of non-smoking men and women increased over time. Conclusion: The lifestyle of Dutch adults aged 55-64 years was less healthy in 2012/2013 compared with 2002/2003 and 1992/1993. Political attention regarding healthy ageing should target the prevention of overweight, physical inactivity and excessive alcohol consumption in middle-aged persons. PMID- 29040442 TI - Catecholamine crisis presenting as takotsubo cardiomyopathy caused by a 30-year old 'Benign' thoracic tumour. PMID- 29040443 TI - A dysbiosis index to assess microbial changes in fecal samples of dogs with chronic inflammatory enteropathy. AB - Recent studies have identified various bacterial groups that are altered in dogs with chronic inflammatory enteropathies (CE) compared to healthy dogs. The study aim was to use quantitative PCR (qPCR) assays to confirm these findings in a larger number of dogs, and to build a mathematical algorithm to report these microbiota changes as a dysbiosis index (DI). Fecal DNA from 95 healthy dogs and 106 dogs with histologically confirmed CE was analyzed. Samples were grouped into a training set and a validation set. Various mathematical models and combination of qPCR assays were evaluated to find a model with highest discriminatory power. The final qPCR panel consisted of eight bacterial groups: total bacteria, Faecalibacterium, Turicibacter, Escherichia coli, Streptococcus, Blautia, Fusobacterium and Clostridium hiranonis. The qPCR-based DI was built based on the nearest centroid classifier, and reports the degree of dysbiosis in a single numerical value that measures the closeness in the l2 - norm of the test sample to the mean prototype of each class. A negative DI indicates normobiosis, whereas a positive DI indicates dysbiosis. For a threshold of 0, the DI based on the combined dataset achieved 74% sensitivity and 95% specificity to separate healthy and CE dogs. PMID- 29040444 TI - Reestablishment of Energy Balance in a Male Mouse Model With POMC Neuron Deletion of BMPR1A. AB - The regulation of energy balance involves complex processes in the brain, including coordination by hypothalamic neurons that contain pro-opiomelanocortin (POMC). We previously demonstrated that central bone morphogenetic protein (BMP) 7 reduced appetite. Now we show that a type 1 BMP receptor, BMPR1A, is colocalized with POMC neurons and that POMC-BMPR1A-knockout (KO) mice are hyperphagic, revealing physiological involvement of BMP signaling in anorectic POMC neurons in the regulation of appetite. Surprisingly, the hyperphagic POMC BMPR1A-KO mice exhibited a lack of obesity, even on a 45% high-fat diet. This is because the brown adipose tissue (BAT) of KO animals exhibited increased sympathetic activation and greater thermogenic capacity owing to a reestablishment of energy balance, most likely stemming from a compensatory increase of BMPR1A in the whole hypothalamus of KO mice. Indeed, control animals given central BMP7 displayed increased energy expenditure and a specific increase in sympathetic nerve activity (SNA) in BAT. In these animals, pharmacological blockade of BMPR1A-SMAD signaling blunted the ability of BMP7 to increase energy expenditure or BAT SNA. Together, we demonstrated an important role for hypothalamic BMP signaling in the regulation of energy balance, including BMPR1A mediated appetite regulation in POMC neurons as well as hypothalamic BMP-SMAD regulation of the sympathetic drive to BAT for thermogenesis. PMID- 29040445 TI - Rationale and Design of the Effectiveness of LowEr maintenanCe dose of TicagRelor early After myocardial infarction (ELECTRA) pilot study. AB - Aims: The degree and time course of platelet inhibition using ticagrelor can vary during the acute phase and the following stable period after acute myocardial infarction (AMI). The optimal level of platelet inhibition during the various stages of AMI remains an open question. The aim of the current study is to compare the antiplatelet efficacy of two ticagrelor maintenance dose regimens (60 mg b.i.d. vs. 90 mg b.i.d.) in stable patients following an initial strategy with ticagrelor 90 mg b.i.d. during the first month after AMI. Methods and results: The Effectiveness of LowEr maintenanCe dose of TicagRelor early After myocardial infarction (ELECTRA) pilot study is a phase III, single-centre, randomized, open label, pharmacokinetic/pharmacodynamic trial. The study population will include 50 patients with AMI treated with percutaneous coronary intervention. At Day 30 post-AMI, all trial participants will be randomly assigned in 1:1 ratio to receive either reduced (60 mg b.i.d.) or standard (90 mg b.i.d.) maintenance ticagrelor dose until Day 45 post-AMI. Platelet function testing in each patient will be performed using up to two different methods (the VASP assay and multiple electrode aggregometry). Pharmacokinetics of ticagrelor and its active metabolite (AR-C124910XX) will be assessed by liquid chromatography mass spectrometry. Conclusion: A de-escalation strategy with reduced dose of ticagrelor (60 mg b.i.d.) following an initial standard dose (90 mg b.i.d.) during the first month after AMI may provide equally effective platelet inhibition as compared to maintenance with the standard ticagrelor dose. ClinicalTrials. gov Identifier: NCT03251859. PMID- 29040446 TI - Familial Aggregation and Heritability of Loa loa Microfilaremia. AB - Background: For a given prevalence of Loa loa microfilaremia, the proportion of people with high densities varies significantly between communities. We hypothesized that this variation is related to the existence of familial clusters of hypermicrofilaremic individuals that would be the consequence of a genetic predisposition to present high L. loa microfilarial densities. Methods: A familial study was performed in 10 villages in the Okola Health District of Cameroon. Intrafamilial correlation coefficients and heritability estimates were assessed for both the presence of L. loa microfilaremia and individual microfilarial densities by controlling for age, sex, Mansonella perstans coinfection, and household effects. Results: Pedigrees were constructed for 1126 individuals. A significant familial susceptibility to be microfilaremic for L. loa was found for first-degree relatives (rho = 0.08, P < .05; heritability = 0.23). Regarding individual microfilarial densities, a significant familial aggregation was demonstrated (rho = 0.36 for first-degree and 0.27 for second degree relatives). For first-degree relatives, the highest coefficient was found between mothers and daughters (rho = 0.57). The overall heritability estimate for L. loa microfilarial density was 0.24 (P = .003). Conclusions: A significant genetic component governs L. loa microfilarial density. This supports the hypothesis that a genetic predisposition to be hypermicrofilaremic exists, leading to the presence of familial clusters of individuals at risk for postivermectin severe adverse events. This finding should be taken into account while developing sampling strategies (including a household-level sampling) to identify villages where community-directed treatment with ivermectin cannot be applied. PMID- 29040447 TI - Transient complete atrioventricular block during catheter balloon cryoablation of atrial fibrillation: a case report. PMID- 29040448 TI - Male Brown Fat-Specific Double Knockout of IGFIR/IR: Atrophy, Mitochondrial Fission Failure, Impaired Thermogenesis, and Obesity. AB - It is unknown how the lack of insulin receptor (IR)/insulinlike growth factor I receptor (IGFIR) in a tissue-specific manner affects brown fat development and mitochondrial integrity and function, as well as its effect on the redistribution of the adipose organ and the metabolic status. To address this important issue, we developed IR/IGFIR double-knockout (DKO) in a brown adipose tissue-specific manner. Lack of those receptors caused severe brown fat atrophy, enhanced beige cell clusters in inguinal fat; loss of mitochondrial mass; mitochondrial damage related to cristae disruption; and the loss of proteins involved in autophagosome formation, mitophagy, mitochondrial quality control, and dynamics and thermogenesis. More important, DKO mice showed an impaired thermogenesis upon cold exposure, based on a failure in the mitochondrial fission mechanisms and a much lower uncoupling protein 1 transcription rate and content. As a result, DKO mice under normal conditions showed an obesity susceptibility, revealed by increased body fat mass and insulin resistance. Upon consumption of a high-fat diet, DKO mice displayed frank obesity, as shown by increased body weight, increased adiposity, insulin resistance, hyperinsulinemia, and hypertriglyceridemia, all consistent with a metabolic syndrome. Collectively, our data suggest a cause-and-effect relationship between failure in brown fat thermogenesis and increased adiposity and obesity. PMID- 29040450 TI - Dilated cardiomyopathy complicated with visceral heterotaxy. PMID- 29040449 TI - Response to letter to the editor of Carcinogenesis by Pira et al., 2017. PMID- 29040451 TI - An omnibus test for differential distribution analysis of microbiome sequencing data. AB - Motivation: One objective of human microbiome studies is to identify differentially abundant microbes across biological conditions. Previous statistical methods focus on detecting the shift in the abundance and/or prevalence of the microbes and treat the dispersion (spread of the data) as a nuisance. These methods also assume that the dispersion is the same across conditions, an assumption which may not hold in presence of sample heterogeneity. Moreover, the widespread outliers in the microbiome sequencing data make existing parametric models not overly robust. Therefore, a robust and powerful method that allows covariate-dependent dispersion and addresses outliers is still needed for differential abundance analysis. Results: We introduce a novel test for differential distribution analysis of microbiome sequencing data by jointly testing the abundance, prevalence and dispersion. The test is built on a zero inflated negative binomial regression model and winsorized count data to account for zero-inflation and outliers. Using simulated data and real microbiome sequencing datasets, we show that our test is robust across various biological conditions and overall more powerful than previous methods. Availability and implementation: R package is available at https://github.com/jchen1981/MicrobiomeDDA. Contact: chen.jun2@mayo.edu or zhiwei@njit.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29040452 TI - Assessment of Vegetable and Fruit Substrates as Potential Rearing Media for Hermetia illucens (Diptera: Stratiomyidae) Larvae. AB - Hermetia illucens (L.) (Diptera: Stratiomyidae) is able to consume a wide range of organic matter and is of particular interest for waste management. The nutritional value of preimaginal stages, in particular the protein content, makes this species a valid candidate for use as feed for other organisms. Vegetables and fruits are promising rearing substrates for insects produced for this purpose according to the EU regulation. In order to examine the effects of diets on insect performance and chemical composition, larvae were reared on the following substrates: 1) fruit (apple, pear, and orange); 2) vegetable (lettuce, green beans, and cabbage); and 3) mixed fruits and vegetables. High percentages of survival were observed on all diets, but there were differences among weights of larvae, pupae, and adults, with weights of larvae reared on mixed fruits and vegetables lower than on other diets. Pupae reared on the mixed diet were heaviest, and also morphometric measurements of adults were highest. Larvae reared on fruit diets had the highest fat content, comprising mostly saturated fatty acids; the highest content of essential n-3 fatty acids was found in vegetable reared larvae and that of n-6 in mixed reared larvae. Larvae reared on the mixed diet had the highest protein content. Calcium contents were high and moderate amounts of iron and zinc were found. H. illucens showed the capability to develop on vegetable and fruits diets displaying different nutrient profiles and biological performances. The best-performing rearing strategy should vary in relation to the final use of H. illucens. PMID- 29040453 TI - Detection of sputum by interpreting the time-frequency distribution of respiratory sound signal using image processing techniques. AB - Motivation: Sputum in the trachea is hard to expectorate and detect directly for the patients who are unconscious, especially those in Intensive Care Unit. Medical staff should always check the condition of sputum in the trachea. This is time-consuming and the necessary skills are difficult to acquire. Currently, there are few automatic approaches to serve as alternatives to this manual approach. Results: We develop an automatic approach to diagnose the condition of the sputum. Our approach utilizes a system involving a medical device and quantitative analytic methods. In this approach, the time-frequency distribution of respiratory sound signals, determined from the spectrum, is treated as an image. The sputum detection is performed by interpreting the patterns in the image through the procedure of preprocessing and feature extraction. In this study, 272 respiratory sound samples (145 sputum sound and 127 non-sputum sound samples) are collected from 12 patients. We apply the method of leave-one out cross-validation to the 12 patients to assess the performance of our approach. That is, out of the 12 patients, 11 are randomly selected and their sound samples are used to predict the sound samples in the remaining one patient. The results show that our automatic approach can classify the sputum condition at an accuracy rate of 83.5%. Availability and implementation: The matlab codes and examples of datasets explored in this work are available at Bioinformatics online. Contact: yesoyou@gmail.com or douglaszhang@umac.mo. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29040454 TI - To fly as a pilot after cardiac surgery. AB - Aircrew are responsible for safe and reliable aircraft operations. Cardiovascular disease accounts for 50% of all pilot licences declined or withdrawn for medical reasons in Western Europe and is the most common cases of sudden incapacitation in flight. Aircrew retirement age is increasing (up to age 65) in a growing number of airlines and the burden of subclinical, but potentially significant, coronary atherosclerosis is unknown in qualified pilots above age 40. Safety considerations are paramount in aviation medicine, and the most dreaded cardiovascular complications are thromboembolic events and rhythm disturbances due to their potential for sudden incapacitation. In aviation, the current consensus risk threshold for an acceptable level of controlled risk of acute incapacitation is 1% (for dual pilot commercial operations), a percentage calculated using engineering principles to ensure the incidence of a fatal air accident is no greater than 1 per 107 h of flying. This is known as the '1% safety rule'. To fly as a pilot after cardiac surgery is possible; however, special attention to perioperative planning is mandatory. Choice of procedure is crucial for license renewal. Licensing restrictions are likely to apply and the postoperative follow-up requires a tight scheduling. The cardiac surgeon should always liaise and communicate with the pilot's aviation medicine examiner prior to and following cardiac surgery. PMID- 29040455 TI - Influence of deep neuromuscular block on the surgeons assessment of surgical conditions during laparotomy: a randomized controlled double blinded trial with rocuronium and sugammadex. PMID- 29040456 TI - Response to letter to the editor from F. Jacques et al. PMID- 29040457 TI - Treatment of Chronic Q Fever: Clinical Efficacy and Toxicity of Antibiotic Regimens. AB - Background: Evidence on the effectiveness of first-line treatment for chronic Q fever, tetracyclines (TET) plus hydroxychloroquine (HCQ), and potential alternatives is scarce. Methods: We performed a retrospective, observational cohort study to assess efficacy of treatment with TET plus quinolones (QNL), TET plus QNL plus HCQ, QNL monotherapy, or TET monotherapy compared to TET plus HCQ in chronic Q fever patients. We used a time-dependent Cox proportional hazards model to assess our primary (all-cause mortality) and secondary outcomes (first disease-related event and therapy failure). Results: We assessed 322 chronic Q fever patients; 276 (86%) received antibiotics. Compared to TET plus HCQ (n = 254; 92%), treatment with TET plus QNL (n = 49; 17%), TET plus QNL plus HCQ (n = 29, 10%), QNL monotherapy (n = 93; 34%), or TET monotherapy (n = 54; 20%) were not associated with primary or secondary outcomes. QNL and TET monotherapies were frequently discontinued due to insufficient clinical response (n = 27, 29% and n = 32, 59%). TET plus HCQ, TET plus QNL, and TET plus QNL plus HCQ were most frequently discontinued due to side effects (n = 110, 43%; n = 13, 27%; and n = 12, 41%). Conclusions: Treatment of chronic Q fever with TET plus QNL appears to be a safe alternative for TET plus HCQ, for example, if TET plus HCQ cannot be tolerated due to side effects. Treatment with TET plus QNL plus HCQ was not superior to treatment with TET plus HCQ, although this may be caused by confounding by indication. Treatment with TET or QNL monotherapy should be avoided; switches due to subjective, insufficient clinical response were frequently observed. PMID- 29040458 TI - Orchestration of the mammalian host cell glucose transporter proteins-1 and 3 by Chlamydia contributes to intracellular growth and infectivity. AB - Chlamydia are gram-negative obligate intracellular bacteria that replicate within a discrete cellular vacuole, called an inclusion. Although it is known that Chlamydia require essential nutrients from host cells to support their intracellular growth, the molecular mechanisms for acquiring these macromolecules remain uncharacterized. In the present study, it was found that the expression of mammalian cell glucose transporter proteins 1 (GLUT1) and glucose transporter proteins 3 (GLUT3) were up-regulated during chlamydial infection. Up-regulation was dependent on bacterial protein synthesis and Chlamydia-induced MAPK kinase activation. GLUT1, but not GLUT3, was observed in close proximity to the inclusion membrane throughout the chlamydial developmental cycle. The proximity of GLUT1 to the inclusion was dependent on a brefeldin A-sensitive pathway. Knockdown of GLUT1 and GLUT3 with specific siRNA significantly impaired chlamydial development and infectivity. It was discovered that the GLUT1 protein was stabilized during infection by inhibition of host-dependent ubiquitination of GLUT1, and this effect was associated with the chlamydial deubiquitinase effector protein CT868. This report demonstrates that Chlamydia exploits host-derived transporter proteins altering their expression, turnover and localization. Consequently, host cell transporter proteins are manipulated during infection as a transport system to fulfill the carbon source requirements for Chlamydia. PMID- 29040459 TI - UC2 search: using unique connectivity of uncharged compounds for metabolite annotation by database searching in mass spectrometry-based metabolomics. AB - Summary: For metabolite annotation in metabolomics, variations in the registered states of compounds (charged molecules and multiple components, such as salts) and their redundancy among compound databases could be the cause of misannotations and hamper immediate recognition of the uniqueness of metabolites while searching by mass values measured using mass spectrometry. We developed a search system named UC2 (Unique Connectivity of Uncharged Compounds), where compounds are tentatively neutralized into uncharged states and stored on the basis of their unique connectivity of atoms after removing their stereochemical information using the first block in the hash of the IUPAC International Chemical Identifier, by which false-positive hits are remarkably reduced, both charged and uncharged compounds are properly searched in a single query and records having a unique connectivity are compiled in a single search result. Availability and implementation: The UC2 search tool is available free of charge as a REST web service (http://webs2.kazusa.or.jp/mfsearcher) and a Java-based GUI tool. Contact: sakurai@kazusa.or.jp. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29040460 TI - Effect of different masticatory functional demands on the 3D mandibular condyle morphology of growing rats using posterior bite-blocks. AB - Background and objectives: Apart from the primary effect of bite-blocks on tooth position, they may also influence the mandibular condylar growth. Our aim was to investigate their influence on the condylar morphology, with variable masticatory forces. Material and methods: Fifty-two 4-week old male rats were divided into hard and soft diet groups in order to create individuals with different masticatory muscle capacity. Two weeks later, they were equally divided into bite block and control groups. After a total of 6 weeks experimental time, the animals were sacrificed. The mandibles were scanned with high-resolution micro-CT and 3D analysis was performed on the condylar neck and head of the condyle. The volume and the length of the condylar process were measured. Statistical analysis was done with a one-way analysis of variance. Results: The use of bite-blocks decreased the length of the condylar process (P = 0.001) as well as the volume of the condylar neck (P = 0.001) and head (P = 0.006). The soft diet decreased the volume of the condylar neck (P < 0.001) and head (P < 0.001) two to three times more than the bite-blocks but did not affect the condylar process length. The interaction between the two variables was not statistically significant. Conclusions: Both the bite-block appliance and weak masticatory muscle function reduced the volume at all regions of the condylar process, although the functional factor had a substantially greater effect. However, only the bite block appliance affected the condylar process length. In the presence of both factors, an additive effect was found but no interaction detected. PMID- 29040461 TI - In vivo comparison of lipid-rich plaque on near-infrared spectroscopy with histopathological analysis of coronary atherectomy specimens. PMID- 29040463 TI - Total pericardium agenesis mistaken for arrhythmogenic right ventricular cardiomyopathy. PMID- 29040462 TI - Both cardiomyocyte and endothelial cell Nox4 mediate protection against hemodynamic overload-induced remodelling. AB - Aims: NADPH oxidase-4 (Nox4) is an important reactive oxygen species (ROS) source that is upregulated in the haemodynamically overloaded heart. Our previous studies using global Nox4 knockout (Nox4KO) mice demonstrated a protective role of Nox4 during chronic abdominal aortic banding, involving a paracrine enhancement of myocardial capillary density. However, other authors who studied cardiac-specific Nox4KO mice reported detrimental effects of Nox4 in response to transverse aortic constriction (TAC). It has been speculated that these divergent results are due to cell-specific actions of Nox4 (i.e. cardiomyocyte Nox4 detrimental but endothelial Nox4 beneficial) and/or differences in the model of pressure overload (i.e. abdominal banding vs. TAC). This study aimed to (i) investigate whether the effects of Nox4 on pressure overload-induced cardiac remodelling vary according to the pressure overload model and (ii) compare the roles of cardiomyocyte vs. endothelial cell Nox4. Methods and results: Global Nox4KO mice subjected to TAC developed worse cardiac remodelling and contractile dysfunction than wild-type littermates, consistent with our previous results with abdominal aortic banding. Next, we generated inducible cardiomyocyte-specific Nox4 KO mice (Cardio-Nox4KO) and endothelial-specific Nox4 KO mice (Endo-Nox4KO) and studied their responses to pressure overload. Both Cardio-Nox4KO and Endo Nox4KO developed worse pressure overload-induced cardiac remodelling and dysfunction than wild-type littermates, associated with significant decrease in protein levels of HIF1alpha and VEGF and impairment of myocardial capillarization. Conclusions: Cardiomyocyte as well as endothelial cell Nox4 contributes to protection against chronic hemodynamic overload-induced cardiac remodelling, at least in part through common effects on myocardial capillary density. PMID- 29040464 TI - Long-term outcome of transvenous pacemaker implantation in infants: a retrospective cohort study. PMID- 29040466 TI - Outer inflammatory protein a (OipA) of Helicobacter pylori is regulated by host cell contact and mediates CagA translocation and interleukin-8 response only in the presence of a functional cag pathogenicity island type IV secretion system. AB - OipA is a phase-variable virulence factor of Helicobacter pylori. Mutations in oipA to turn the gene phase on in a cag pathogenicity island (PAI)-negative strain of H. pylori (J68) or phase off in a cag PAI-positive strain (26695) demonstrated that phase on oipA alleles in both strains had both increased oipA mRNA and human gastric adenocarcinoma (AGS) cell adherence compared to isogenic oipA phase off mutants. An oipA phase off mutant of H. pylori 26695 demonstrated decreased IL-8 secretion by AGS cells and failure to translocate the cag PAI effector CagA. Increased attachment by OipA expressing cag PAI-negative H. pylori J68 failed to alter secreted IL-8 levels. Thus, OipA is necessary but not sufficient for the induction of IL-8; however, it is necessary for translocation of the oncoprotein CagA. Perhaps the nearly invariant phase on status of oipA alleles among cag PAI-positive H. pylori isolates relates to the role of this outer membrane protein in effective translocation of CagA. oipA mRNA comparisons between AGS cell-adherent and non-adherent H. pylori 26695 revealed significantly greater levels in the adherent cells. This may allow H. pylori to adapt to conditions of host cell contact by altering expression of this virulence factor. PMID- 29040465 TI - The FUT2 secretor variant p.Trp154Ter influences serum vitamin B12 concentration via holo-haptocorrin, but not holo-transcobalamin, and is associated with haptocorrin glycosylation. AB - Vitamin B12 deficiency is common in older individuals. Circulating vitamin B12 concentration can be used to diagnose deficiency, but this test has substantial false positive and false negative rates. We conducted genome-wide association studies (GWAS) in which we resolved total serum vitamin B12 into the fractions bound to transcobalamin and haptocorrin: two carrier proteins with very different biological properties. We replicated reported associations between total circulating vitamin B12 concentrations and a common null variant in FUT2. This allele determines the secretor phenotype in which blood group antigens are found in non-blood body fluids. Vitamin B12 bound to haptocorrin (holoHC) remained highly associated with FUT2 rs601338 (p.Trp154Ter). Transcobalamin bound vitamin B12 (holoTC) was not influenced by this variant. HoloTC is the bioactive the form of the vitamin and is taken up by all tissues. In contrast, holoHC is only taken up by the liver. Using holoHC from individuals with known FUT2 genotypes, we demonstrated that FUT2 rs601338 genotype influences the glycosylation of haptocorrin. We then developed an experimental model demonstrating that holoHC is transported into cultured hepatic cells (HepG2) via the asialoglycoprotein receptor (ASGR). Our data challenge current published hypotheses on the influence of genetic variation on this clinically important measure and are consistent with a model in which FUT2 rs601338 influences holoHC by altering haptocorrin glycosylation, whereas B12 bound to non-glycosylated transcobalamin (i.e. holoTC) is not affected. Our findings explain some of the observed disparity between use of total B12 or holoTC as first-line clinical tests of vitamin B12 status. PMID- 29040467 TI - Validation of an in vitro system for studies of pathogenicity mechanisms in Xanthomonas campestris. AB - Several minimal media capable of inducing pathogenicity genes have been used to study plant-pathogen interactions. An in planta assay to study a closer interaction between the bacteria and the host was also developed and has been employed by our group. In order to determine whether growth medium could be improved to better approximate in planta conditions beyond that offered by the defined minimal medium XVM1, we compared the expression of 20 Xanthomonas campestris pv. campestris (Xcc) genes by quantitative reverse transcription - polymerase chain reaction (qRT-PCR) under in vivo (bacteria recovered from the plant) and in vitro (rich medium NYG, minimal medium XVM1 and XVM1 + leaf extract) growth systems. The results showed a higher expression level of the genes in the in planta system when compared to growth in culture media. In planta growth is closest to a real interaction condition and captures the complexity of the plant cell environment; however, this system has some limitations. The main finding of our work is that the addition of plant extract to XVM1 medium results in a gene expression profile that better matches the in planta profile, when compared with the XVM1 medium alone, giving support to the use of plant extract to study pathogenicity mechanisms in Xanthomonas. PMID- 29040468 TI - From Eisenhower's heart attack to modern management: a true success story! PMID- 29040470 TI - Aorto-left ventricular tunnel: an unusual aortic flow, from images to modelling. PMID- 29040469 TI - The commercialization of traditional medicine in modern Cambodia. AB - Globally, traditional medicine has long been used to address relatively common illness, mental ill health and during childbirth and post-natal care. However, traditional medicine is primarily provided by the private sector and it is unclear how far expenditures on traditional medicine contribute to household impoverishment. A life history method was used to understand the health seeking experience of 24 households over the last 60 years in Cambodia, a country with high out-of-pocket expenditures for health. The life histories suggest that traditional medicine in Cambodia has been undergoing a process of commercialization, with significant impacts on poor households. In the earlier lives of respondents, payments for traditional medicine were reported to have been flexible, voluntary or appropriate to patients' financial means. In contrast, contemporary practitioners appear to seek immediate cash payments that have frequently led to considerable debt and asset sales by traditional medicine users. Given traditional medicine's popularity as a source of treatment in Cambodia and its potential to contribute to household impoverishment, we suggest that it needs to be included in a national conversation about achieving Universal Health Coverage in the country. PMID- 29040471 TI - Endometriosis fertility index predicts live births following surgical resection of moderate and severe endometriosis. AB - STUDY QUESTION: Can live birth be accurately predicted following surgical resection of moderate-severe (Stage III-IV) endometriosis? SUMMARY ANSWER: Live births can accurately be predicted with the endometriosis fertility index (EFI), with adnexal function being the most important factor to predict non-assisted reproductive technology (non-ART) fertility or the requirement for ART (www.endometriosisefi.com). WHAT IS KNOWN ALREADY: Fertility prognosis is important to many women with severe endometriosis. Controversy persists regarding optimal post-operative management to achieve pregnancy and the counselling of patients regarding duration of conventional treatments before undergoing ART. The EFI is reported to correlate with expectant management pregnancy rate, although external validation has been performed without specifically addressing fertility in women with moderate and severe endometriosis. STUDY DESIGN, SIZE, DURATION: Retrospective cohort study of 279 women from September 2001 to June 2016. PARTICIPANTS/MATERIALS, SETTINGS, METHODS: We included women undergoing laparoscopic resection of Stage III-IV endometriosis who attempted pregnancy post operatively. The EFI was calculated based on detailed operative reports and surgical images. Fertility outcomes were obtained by direct patient contact. Kaplan-Meier model, log rank test and Cox regression were used for analyses. MAIN RESULTS AND THE ROLE OF CHANCE: The follow-up rate was 84% with a mean duration of 4.1 years. A total of 147 women (63%) had a live birth following surgery, 94 of them (64%) without ART. The EFI was highly associated with live births (P < 0.001): for women with an EFI of 0-2 the estimated cumulative non-ART live birth rate at five years was 0% and steadily increased up to 91% with an EFI of 9-10, while the proportion of women who attempted ART and had a live birth, steadily increased from 38 to 71% among the same EFI strata (P = 0.1). A low least function score was the most significant predictor of failure (P = 0.003), followed by having had a previous resection (P = 0.019) or incomplete resection (P = 0.028), being older than 40 compared to <35 years of age (P = 0.027), and having leiomyomas (P = 0.037). LIMITATIONS REASONS FOR CAUTION: The main limitation of this study is its retrospective design. Imprecision was higher with low EFI due to smaller sample size in this subgroup. Finally, the EFI is somewhat subjective and could be prone to intra- and inter-observer variations. WIDER IMPLICATIONS OF THE FINDINGS: Women with a high EFI score have excellent fertility prognosis and may be advised to try to become pregnant with timed intercourse compared to women with a low score, for which prompt referral to ART seems more reasonable. Other prognostic factors can be used to guide the management of women with an intermediate EFI score. These data follow women over many years post-resection and represent longitudinal fertility data rarely demonstrated in such a cohort. The location and impact of lesions on the ability of the adnexa to function seems crucial for the fertility prognosis and should be further investigated. STUDY FUNDING/COMPETING INTEREST(S): This study was funded by the GRACE Research funds. S.M.-L. is the recipient of a Training Award from the Fonds de Recherche Quebec-Sante. D.A. is the primary author of the Endometriosis Fertility Index. All authors have no conflicts of interest to declare. TRIAL REGISTRATION NUMBER: N/A. PMID- 29040473 TI - miRNA-based antiarrhythmics after myocardial ischaemic injury: Authors' reply. PMID- 29040472 TI - Optogenetic Modulation of a Minor Fraction of Parvalbumin-Positive Interneurons Specifically Affects Spatiotemporal Dynamics of Spontaneous and Sensory-Evoked Activity in Mouse Somatosensory Cortex in Vivo. AB - Parvalbumin (PV) positive interneurons exert strong effects on the neocortical excitatory network, but it remains unclear how they impact the spatiotemporal dynamics of sensory processing in the somatosensory cortex. Here, we characterized the effects of optogenetic inhibition and activation of PV interneurons on spontaneous and sensory-evoked activity in mouse barrel cortex in vivo. Inhibiting PV interneurons led to a broad-spectrum power increase both in spontaneous and sensory-evoked activity. Whisker-evoked responses were significantly increased within 20 ms after stimulus onset during inhibition of PV interneurons, demonstrating high temporal precision of PV-shaped inhibition. Multiunit activity was strongly enhanced in neighboring cortical columns, but not at the site of transduction, supporting a central and highly specific role of PV interneurons in lateral inhibition. Inversely, activating PV interneurons drastically decreased spontaneous and whisker-evoked activity in the principal column and exerted strong lateral inhibition. Histological assessment of transduced cells combined with quantitative modeling of light distribution and spike sorting revealed that only a minor fraction (~10%) of the local PV population comprising no more than a few hundred neurons is optogenetically modulated, mediating the observed prominent and widespread effects on neocortical processing. PMID- 29040474 TI - Co-occurrence of genes for aerobic and anaerobic biodegradation of dichloroethane in organochlorine-contaminated groundwater. AB - 1,2-Dichloroethane (DCA) is a problematic groundwater pollutant. Factors influencing the distribution and activities of DCA-degrading bacteria are not well understood, which has hampered their application for bioremediation. Here, we used quantitative PCR to investigate the distribution of putative DCA dehalogenating bacteria at a DCA-impacted site in Sydney (Australia). The dehalogenase genes dhlA, tceA and bvcA were detected in all groundwater samples (n = 15), while vcrA was found in 11/15 samples. The 16S rRNA gene sequences specific to the dehalogenating genera Dehalobacter, Desulfitobacterium and Dehalogenimonas were detected in 15/15, 13/15 and 13/15 samples, respectively, while Dehalococcoides sequences were found in 9/15 samples. The tceA, bvcA and vcrA genes occurred in the same samples as Dehalococcoides and Dehalobacter. Microcosm experiments confirmed the presence of bacteria capable of dechlorination under anoxic conditions. The abundance of the dhlA gene, which is found in hydrolytic DCA degraders, was positively correlated to the DCA concentration, and was unexpectedly most abundant in samples with low oxygen conditions. A dhlA-containing bacterium isolated from the site (Xanthobacter EL8) was capable of anaerobic growth on DCA under denitrifying conditions. The presence of diverse DCA-dehalogenating bacteria at this site indicates that natural attenuation or biostimulation could be valid approaches for site cleanup. PMID- 29040475 TI - From Nose to Memory: The Involuntary Nature of Odor-evoked Autobiographical Memories in Alzheimer's Disease. AB - Research suggests that odors may serve as a potent cue for autobiographical retrieval. We tested this hypothesis in Alzheimer's disease (AD) and investigated whether odor-evoked autobiographical memory is an involuntary process that shares similarities with music-evoked autobiographical memory. Participants with mild AD and controls were asked to retrieve 2 personal memories after odor exposure, after music exposure, and in an odor-and music-free condition. AD participants showed better specificity, emotional experience, mental time travel, and retrieval time after odor and music exposure than in the control condition. Similar beneficial effects of odor and music exposure were observed for autobiographical characteristics (i.e., specificity, emotional experience, and mental time travel), except for retrieval time which was more improved after odor than after music exposure. Interestingly, regression analyses suggested executive involvement in memories evoked in the control condition but not in those evoked after music or odor exposure. These findings suggest the involuntary nature of odor-evoked autobiographical memory in AD. They also suggest that olfactory cuing could serve as a useful and ecologically valid tool to stimulate autobiographical memory, at least in the mild stage of the disease. PMID- 29040477 TI - The Critical Importance of Sampling Fraction to Inferences of Mycobacterium tuberculosis Transmission. PMID- 29040476 TI - National responses to global health targets: exploring policy transfer in the context of the UNAIDS '90-90-90' treatment targets in Ghana and Uganda. AB - Global health organizations frequently set disease-specific targets with the goal of eliciting adoption at the national-level; consideration of the influence of target setting on national policies, programme and health budgets is of benefit to those setting targets and those intended to respond. In 2014, the Joint United Nations Programme on HIV/AIDS set 'ambitious' treatment targets for country adoption: 90% of HIV-positive persons should know their status; 90% of those on treatment; 90% of those achieving viral suppression. Using case studies from Ghana and Uganda, we explore how the target and its associated policy content have been adopted at the national level. That is whether adoption is in rhetoric only or supported by programme, policy or budgetary changes. We review 23 (14 from Ghana, 9 from Uganda) national policy, operational and strategic documents for the HIV response and assess commitments to '90-90-90'. In-person semi structured interviews were conducted with purposively sampled key informants (17 in Ghana, 20 in Uganda) involved in programme-planning and resource allocation within HIV to gain insight into factors facilitating adoption of 90-90-90. Interviews were transcribed and analysed thematically, inductively and deductively, guided by pre-existing policy theories, including Dolowitz and Marsh's policy transfer framework to describe features of the transfer and the Global Health Advocacy and Policy Project framework to explain observations. Regardless of notable resource constraints, transfer of the 90-90-90 targets was evident beyond rhetoric with substantial shifts in policy and programme activities. In both countries, there was evidence of attempts to minimize resource constraints by seeking programme efficiencies, prioritization of programme activities and devising domestic financing mechanisms; however, significant resource gaps persist. An effective health network, comprised of global and local actors, mediated the adoption and adaptation, facilitating a shift in the HIV programme from 'business as usual' to approaches targeting geographies and populations. PMID- 29040478 TI - Corrigendum. PMID- 29040479 TI - Quality of life following esophagectomy with three-field lymphadenectomy for carcinoma, focusing on its relationship to vocal cord palsy. AB - To clarify the quality of life of patients who underwent esophagectomy for carcinoma by right thoracotomy, laparotomy and cervical anastomosis, 116 patients who were cancer free at the time of mailing a questionnaire were analyzed. A significant decrease in vital capacity for 3 years postoperatively, as well as in the percentage of ideal body weight, between 3 and 5 years were observed in 57 patients with three-field lymphadenectomy. Patients' quality of life undergoing three-field dissection was worse than those with less radical lymphadenectomy (59 cases) in terms of the performance status and difficulty in talking at 60 months or more postoperatively. Around 20% of all patients reported severe hoarseness due to permanent recurrent nerve paralysis, resulting in poor quantity of food intake at 24 months or less postoperatively and restricted daily activity and difficulty in talking at 60 months or more after the operation. When a patient suffers from vocal cord insufficiency caused by permanent paralysis of the recurrent nerve, early treatment before discharge from the hospital should be performed to improve the quality of life of such a patient. PMID- 29040480 TI - CYFRA 21-1 as a tumor marker for squamous cell carcinoma of the esophagus. AB - This study assessed the clinical value of CYFRA 21-1 in comparison with squamous cell carcinoma antigen (SCC-Ag), carcinoembryonic antigen (CEA), and carbohydrate antigen 19-9 (CA19-9) in patients with esophageal squamous cell carcinoma. In 112 primary cancer patients, the diagnostic sensitivity of CYFRA 21-1 (33.9%) was superior to SCC-Ag (28.6%), CEA (12.5%), and CA19-9 (6.3%). Levels of CYFRA 21-1 were closely correlated with TNM stage and were below the cutoff value in all 21 patients with stage I disease. All 38 patients with a CYFRA 21-1 level over the cutoff value among the 80 patients who underwent esophagectomy had lymph node metastases (pNl). A correlation was found between CYFRA 21-1 levels and clinical response in serial measurements of 21 patients who received chemotherapy or chemo radiotherapy. Our findings suggest that CYFRA 21-1 is not useful for diagnosis, but that it is valuable for monitoring the efficacy of therapy. PMID- 29040481 TI - The value of neck drain in esophageal surgery: a randomized trial. AB - The use of surgical drains in certain clean elective operations remains controversial. To evaluate the role of closed-suction drain for an esophageal anastomosis in the neck, we conducted a randomized, controlled study in 40 patients with esophageal carcinoma who underwent esophagectomy with an esophageal anastomosis in the neck, half of whom had a neck drain inserted at the end of operation. The median (range) duration of drainage was 46 hours (36 to 88 hours). The median (range) amount of drainage was 63 ml (15 to 210 ml). There was no incidence of haematoma or seroma formation in both the drained and non-drained groups. Anastomotic leakage did not occur in any patient. The benefits of closed suction neck drain could not be demonstrated. Routine use of neck drain for esophageal anastomosis in the neck is not necessary. PMID- 29040482 TI - Strategies to reduce pulmonary complications after transhiatal esophagectomy. AB - Background: By eliminating a thoracotomy, transhiatal esophagectomy (THE) is purported to reduce postoperative pulmonary complications. However, data from many early series do not support this contention, documenting pulmonary complications in up to 50% of patients and pneumonia in 5%-20%. Since 1990, we have implemented a management strategy designed to maximize airway protection in the postoperative period. The purpose of this study was to determine the current incidence of pulmonary complications after transhiatal esophagectomy without thoracotomy. Patients and Methods: From 1990 to 1995, 101 consecutive patients underwent THE. Surgical indications were esophageal carcinoma (90 patients) and Barrett mucosa with high-grade epithelial dysplasia (11 patients). Mean age was 60.2 +/- 1.2 years; 89 patients were male. Eighty-two patients were smokers and 26 had chronic obstructive pulmonary disease (COPD). Sixty-five patients were American Society of Anesthesiologists risk score 3 or 4. Postoperatively, all patients were managed according to a standardized clinical pathway that included overnight mechanical ventilation, chest physiotherapy, video pharyngo-esophagram postoperative day 6 or 7, and graduated post-esophagectomy therapeutic diet after acceptable esophagram. Results: Pulmonary complications were classified as major or minor depending upon whether or not a change in therapy was required. Ten patients (10%) had 11 major pulmonary complications. These included pneumonia (3), pleural effusion requiring drainage (4), exacerbation of COPD (2), and mucus plug requiring bronchoscopy or intubation (2). Minor pulmonary complications identified by chest film were atelectasis (97), pleural effusion (85), and pneumothorax (3). Patients with major pulmonary complications were older (69.3 +/ 9.8 vs. 59.2 +/- 12.1 years, p < .02) and more likely to have COPD (70% vs. 21%, p < .005) than those with only minor complications. There were 3 operative deaths; 2 caused by pneumonia and 1 by fungal sepsis in a patient who had exacerbation of COPD. Mean hospital length of stay was 13.1 +/- 1.4 days. Conclusions: Minor pulmonary complications identified by chest film occur in nearly all patients undergoing THE. Strict adherence to a management protocol designed to maximize airway protection in the postoperative period results in a 10% incidence of major pulmonary complications. Older patient age and COPD are risk factors for major pulmonary complications after THE. Although pneumonia is uncommon, it remains the most frequent cause of death after THE. PMID- 29040483 TI - Results of surgical treatment of cervical esophageal diverticula. AB - On the basis of 20 years' experience, the authors present the immediate and long term results of operative treatment of Zenker's diverticulum. Comparison of two methods of surgery - diverticulopexia (in 21 patients) and excision (in 16), both associated with upper esophageal sphincter myotomy - shows good immediate and longterm results (from 1 to 19 years), with disappearance of symptoms (dysphagia) in all patients. There was no perioperative mortality. Postoperative complications were most commonly of pulmonary origin and were observed in a third of patients in both groups. In two patients from the group treated with excision, a leak from the suture line occurred, which healed spontaneously. These two patients had transient dysphagia in the postoperative period. On the basis of this analysis, the authors conclude that diverticulopexia is a safer surgical procedure than excision, giving less complications and a very good long-term functional result. PMID- 29040484 TI - Esophagocardioplasty, vagotomy-antrectomy and Roux-en-Y gastrojejunostomy: indication in cases with severe esophageal motor disfunction. AB - Almost 10% of patients with Crest syndrome associated with severe gastroesophageal reflux and 5-10% of patients with failed cardiomyotomy for achalasia present with cardial or distal esophageal organic stricture. Some of these cases are poor risk patients for surgery and therefore the surgeon must offer a safe procedure with low morbimortality, keeping in mind the pathophysiological motor pattern of these patients.In order to treat the stricture to improve the esophageal transit we treated patients with esophagocardioplasty associated with vagotomy-antrectomy and Roux-en-Y gastrojejunostomy, thereby avoiding the potential acid or biliary reflux in poor risk patients in whom esophagectomy would be a very deleterious procedure. All four patients had a good postoperative evolution and late control demonstrated good esophagogastric transit with no postoperative esophagitis. PMID- 29040485 TI - Esophageal duplication cyst: case report and review of the literature. PMID- 29040486 TI - Delayed traumatic rupture of the thoracic aorta into the esophagus. AB - A case of delayed rupture of the thoracic aorta into the esophagus after blunt thoracic injury is reported. It involved a hemodynamically stable 18-year-old male patient without any clinical or radiological signs to indicate aortic injury. Aortoesophageal fistula presented in the fifth post traumatic day, with a sudden dyspnea episode, intraperitoneal hemorrhage and lower gastrointestinal bleeding, due to intraperitoneal and intragastric rupture of intramural esophageal hematoma. PMID- 29040487 TI - Pedunculated liposarcoma of the esophagus. AB - Polypoid tumours of the esophagus present diagnostic and therapeutic problems. Liposarcomas are infrequent among them. We report a recent case. A 73-year-old male patient was seen in May 1995 in the Ear, Nose and Throat (ENT) Department, Clinica Modelo de Moron, with intermittent dysphagia and dyspnoea due to recurrent vomiting. A laryngeal lineal tomography showed a subglottic obstruction due to extrinsic compression. The patient was referred to the Gastroenterology Department, where an upper gastrointestinal (upper GI) series demonstrated mega esophagus with abundant retained food. Endoscopy showed a large intraluminal mass covered by normal mucosa which arose on the posterior wall. Videofluoroscopy and chest CT diagnosed a probable polypoid lipoma due to its densitometric characteristics. The tumour was resected by left cervicotomy and left esophagotomy. The patient's progress to date is favourable. Pathology studies showed a well-differentiated liposarcoma. According to the literature, the first case was reported in 1983, and ours is only the seventh case in the world to be documented. PMID- 29040489 TI - Palliation of anastomotic tumor recurrence after esophagectomy and gastric transposition: cervico-mediastinal resection and reconstruction by using a free jejunal transplant. PMID- 29040488 TI - Tuberculosis of the esophagus. AB - We report a case of a patient with esophageal tuberculosis, a very uncommon form of extrapulrhonar tuberculosis. Initially, because of constitutional symptomatology and radiological findings of mediastinal lymph node enlargement, lymphoma was considered. However, the endoscopic findings of ulcerative masses and a sinus tract revealed by esophagram were suspicious of tuberculous origin. Diagnosis was achieved after bacterial examination of smear samples from esophageal ulcers that revealed bacillus tuberculous and histological demonstration of caseating granulomas in cervical lymph nodes. Tuberculous mediastinal lymphadenitis was thought to be source of the spread to esophagus.The patient was successfully treated with a three antituberculous drugs regimen. In spite of its rarity, even in patients without risk factors, the diagnosis would be considered in the differential diagnosis of uncertain esophageal lesions. PMID- 29040490 TI - Proceedings from an international conference on ablation therapy for Barrett's mucosa: Brittany, France, 31 August - 2 September 1997. AB - The increasing incidence of adenocarcinoma of the lower esophagus and cardia arising in Barrett's metaplastic epithelium continues to be of great concern because medical and surgical efforts to reverse the process have been disappointing. A potential answer to the problem is removal of the metaplastic epithelium. Modern technology has introduced physical and chemical modalities which facilitate ablation of the neo-epithelium endoscopically. These techniques have been used in several centers, and preliminary results are encouraging. This report summarizes the proceedings of an international symposium on ablative therapy held in Brittany, France in August 1997.Twenty-eight speakers contributed to the talks on the pathology, pathogenesis, current therapy experimental studies and clinical experience of ablation of Barrett's esophagus. PMID- 29040491 TI - The influence of the transposed stomach through the posterior mediastinum on the respiratory forced expiratory volume and forced vital capacity in patients with resected esophageal cancer. AB - Although the use of the posterior mediastinum and the stomach as a reconstruction option after esophagectomy has large acceptance all over the world, there are concerns about the potential respiratory impairment it could cause. We prospectively studied 35 patients regarding the forced expiratory volume and vital capacity. The patients were studied preoperatively and between the 45th and 60th postoperative days. The value of both parameters decreased, although they were still within normal clinical ranges. We concluded that this type of reconstruction does not harm the patients regarding the respiratory flow rates. PMID- 29040492 TI - Foreign body impaction in the esophagus: are there underlying motor disorders? AB - Results: Compared with the control group, the impacted subjects presented marked reduction in amplitude and duration of esophageal contraction in the proximal esophagus. Conclusions: These motor disorders could be responsible for the foreign body impaction in the esophagus. However, we believe this patient group should be further studied by 24-hour esophageal manometry to reach a more accurate diagnosis by studying each patient's entire circadian cycle. PMID- 29040493 TI - Releasing the "GENI": integrating authentic microbial genomics research into the classroom through GENI-ACT. AB - The integration of genomics research into the undergraduate biology curriculum provides students with the opportunity to become familiar with bioinformatics tools and answer original research questions. Our purpose with this research project was to upscale the research experience through integration with classroom experience giving students access to authentic research projects. Students annotated 60 predicted ABC genes of Methanothermobacter thermautotrophicus and Methanobacterium sp. SWAN-1, and they were required to present a research poster to demonstrate their understanding of the project. During this research project a number of tests, assessments and surveys were conducted to assess familiarity with technical and conceptual understanding of genome annotation, satisfaction with annotation instruction, gain in bioinformatics research skills, scientific communications skills and increased student interest in research. We found that students gained significant skills in bioinformatics, specifically genome annotation skills and also gained confidence in their abilities to carry out scientific research. As a result of this authentic undergraduate research experience under-represented students were motivated to pursue future careers in STEM fields. PMID- 29040494 TI - Beyond Reward Prediction Errors: Human Striatum Updates Rule Values During Learning. AB - Humans naturally group the world into coherent categories defined by membership rules. Rules can be learned implicitly by building stimulus-response associations using reinforcement learning or by using explicit reasoning. We tested if the striatum, in which activation reliably scales with reward prediction error, would track prediction errors in a task that required explicit rule generation. Using functional magnetic resonance imaging during a categorization task, we show that striatal responses to feedback scale with a "surprise" signal derived from a Bayesian rule-learning model and are inconsistent with RL prediction error. We also find that striatum and caudal inferior frontal sulcus (cIFS) are involved in updating the likelihood of discriminative rules. We conclude that the striatum, in cooperation with the cIFS, is involved in updating the values assigned to categorization rules when people learn using explicit reasoning. PMID- 29040495 TI - Applying sequence clustering techniques to explore practice-based ambulatory care pathways in insurance claims data. AB - Background: Care pathways are a widely used mean to ensure well-coordinated and high quality care by defining the optimal timing and interval of health services for a specific indication. However, evidence on common sequences of services actually followed by patients has rarely been quantified. This study aims to explore whether sequence clustering techniques can be used to empirically identify typical treatment sequences in ambulatory care for heart failure (HF) patients and compare their effectiveness. Methods: Routine data of HF patients were provided by a large statutory sickness fund in Germany from 2009 until 2011. Events were categorized by either (i) the specialty of the physician, (ii) the type of service/procedure provided and (iii) the medication prescribed. Similarities between sequences were measured using the 'longest common subsequence' (LCS). The k-medoids clustering algorithm was applied to identify distinct subgroups of sequences. We used logistic regression to identify the most effective sequences for avoiding hospitalizations. Results: Treatment data of 982 incident HF patients were analyzed to identify typical treatment sequences. The cluster analysis revealed three distinct clusters of specialty sequences, four clusters of procedure sequences and four clusters of prescription sequences. Clusters differed in terms of timing and interval of physician visits, procedures and drug prescriptions as well as comorbidities and HF hospitalization rates. We found no significant association between cluster membership and HF hospitalization. Conclusions: Sequence clustering techniques can be used as an explorative tool to systematically extract, describe compare and analyze treatment sequences and associated characteristics. PMID- 29040496 TI - Changes in platelet Bax levels contribute to impaired platelet response to thrombin after cardiopulmonary bypass: prospective observational clinical and laboratory investigations. AB - Background: Anucleate platelets can undergo apoptosis in response to various stimuli, as do nucleated cells. Cardiopulmonary bypass (CPB) causes platelet dysfunction and can also activate platelet apoptotic pathways. We therefore evaluated time-dependent changes in blood platelet Bax (a pro-apoptotic molecule) levels and platelet dysfunction after cardiac surgery. Methods: We assessed blood samples obtained from subjects having on-pump or off-pump coronary artery bypass graft surgery ( n =20 each). We also evaluated the in vitro effects of platelet Bax increase in eight healthy volunteers. Results: Thrombin-induced platelet calcium mobilisation and platelet-surface glycoprotein Ib (GPIb) expression were lowest at weaning from CPB and did not recover on postoperative day one. On-pump surgery increased platelet expression of Bax, especially the oligomerised form, along with translocation of Bax from the cytosol to mitochondria and platelet surface tumour necrosis factor-alpha (TNF-alpha)-converting enzyme (TACE) expression. In contrast, mitochondrial cytochrome c expression was reduced. While similar in direction, the magnitude of the observed changes was smaller in patients having off-pump surgery. In vitro , a cell-permeable Bax peptide increased platelet Bax expression to the same extent seen during bypass and produced similar platelet changes. These apoptotic-like changes were largely reversed by Bcl-xL pre-administration, and were completely reversed by combined application of inhibitors that stabilise outer mitochondrial membrane permeability and TACE. Conclusions: CPB increases platelet Bax expression, which contributes to reduced platelet-surface GPIb expression and thrombin-induced platelet calcium changes. These changes in platelet apoptotic signalling might contribute to platelet dysfunction after CPB. Clinical trial registration: UMIN Clinical Trials Registry (number UMIN000006033). PMID- 29040497 TI - The Association Between Fall Frequency, Injury Risk, and Characteristics of Falls in Older Residents of Long-Term Care: Do Recurrent Fallers Fall More Safely? AB - Background: Although a fall is a necessary prerequisite to a fall-related injury, previous studies suggest that frequent fallers are at lower injury risk for a given fall. We tested the hypotheses that differences in protective responses or the circumstances of falls underlie differences in injury risk with fall frequency. Methods: We analyzed video footage of 897 falls experienced by 220 long-term care residents (mean age 82 +/- 9 years) to identify the cause of imbalance, activity leading to falling, direction of fall initiation, balance recovery and fall protective responses, and occurrence of impact to the head or hip. We further obtained injury information from the facilities' fall registration. We used generalized estimating equation models to examine the association between quartiles of fall frequency, injury risk, and fall characteristics. Results: Residents with the highest fall frequency group (Q4; >=5.6 falls/year) were less likely to sustain an injury per fall. They were less likely to fall during walking and more likely to fall during stand-to-sit transfers. Residents in the lowest fall frequency group (Q1; <1.15 falls/year) were more likely to fall during walking, and walking was associated with an increased risk for injury. Conclusion: When compared to less frequent fallers, more frequent fallers had a lower risk for injury per fall. This appeared to be explained by differences in the circumstances of falls, and not by protective responses. Injury prevention strategies in long-term care should target both frequent and infrequent fallers, as the latter are more mobile and apt to sustain injury. PMID- 29040498 TI - Genome stability of bovine in vivo-conceived cleavage-stage embryos is higher compared to in vitro-produced embryos. AB - STUDY QUESTION: Is the rate and nature of chromosome instability (CIN) similar between bovine in vivo-derived and in vitro-cultured cleavage-stage embryos? SUMMARY ANSWER: There is a major difference regarding chromosome stability of in vivo-derived and in vitro-cultured embryos, as CIN is significantly lower in in vivo-derived cleavage-stage embryos compared to in vitro-cultured embryos. WHAT IS KNOWN ALREADY: CIN is common during in vitro embryogenesis and is associated with early embryonic loss in humans, but the stability of in vivo-conceived cleavage-stage embryos remains largely unknown. STUDY DESIGN, SIZE, DURATION: Because human in vivo preimplantation embryos are not accessible, bovine (Bos taurus) embryos were used to study CIN in vivo. Five young, healthy, cycling Holstein Friesian heifers were used to analyze single blastomeres of in vivo embryos, in vitro embryos produced by ovum pick up with ovarian stimulation (OPU IVF), and in vitro embryos produced from in vitro matured oocytes retrieved without ovarian stimulation (IVM-IVF). PARTICIPANTS/MATERIALS, SETTING, METHODS: Single blastomeres were isolated from embryos, whole-genome amplified and hybridized on Illumina BovineHD BeadChip arrays together with the bulk DNA from the donor cows (mothers) and the bull (father). DNA was also obtained from the parents of the bull and from the parents of the cows (paternal and maternal grandparents, respectively). Subsequently, genome-wide haplotyping and copy number profiling was applied to investigate the genomic architecture of 171 single bovine blastomeres of 16 in vivo, 13 OPU-IVF and 13 IVM-IVF embryos. MAIN RESULTS AND THE ROLE OF CHANCE: The genomic stability of single blastomeres in both of the in vitro-cultured embryo cohorts was severely compromised (P < 0.0001), and the frequency of whole chromosome or segmental aberrations was higher in embryos produced in vitro than in embryos derived in vivo. Only 18.8% of in vivo-derived embryos contained at least one blastomere with chromosomal anomalies, compared to 69.2% of OPU-IVF embryos (P < 0.01) and 84.6% of IVM-IVF embryos (P < 0.001). LARGE SCALE DATA: Genotyping data obtained in this study has been submitted to NCBI Gene Expression Omnibus (GEO; accession number GSE95358). LIMITATIONS REASONS FOR CAUTION: There were two main limitations of the study. First, animal models may not always reflect the nature of human embryogenesis, although the use of an animal model to investigate CIN was unavoidable in our study. Second, a limited number of embryos were obtained, therefore more studies are warranted to corroborate the findings. WIDER IMPLICATIONS OF THE FINDINGS: Although CIN is also present in in vivo-developed embryos, in vitro procedures exacerbate chromosomal abnormalities during early embryo development. Hence, the present study highlights that IVF treatment compromises embryo viability and should be applied with care. Additionally, our results encourage to refine and improve in vitro culture conditions and assisted reproduction technologies. STUDY FUNDING/COMPETING INTEREST(S): The study was funded by the Agency for Innovation by Science and Technology (IWT) (TBM-090878 to J.R.V. and T.V.), the Research Foundation Flanders (FWO; G.A093.11 N to T.V. and J.R.V. and G.0392.14 N to A.V.S. and J.R.V.), the European Union's FP7 Marie Curie Industry-Academia Partnerships and Pathways (IAPP, SARM, EU324509 to J.R.V., T.V., O.T, A.D., A.S. and A.K.) and Horizon 2020 innovation programme (WIDENLIFE, 692065 to J.R.V., O.T., T.V., A.K. and A.S.). M.Z.E., J.R.V. and T.V. are co-inventors on a patent application ZL913096-PCT/EP2014/068315-WO/2015/028576 ('Haplotyping and copy number typing using polymorphic variant allelic frequencies'), licensed to Cartagenia (Agilent Technologies). PMID- 29040499 TI - Sharing health information online in South Korea: motives, topics, and antecedents. AB - This study aimed to examine the motives, topics and antecedents for sharing health information online among Korean Internet users. Eight hundred adults completed a web-based survey exploring the motives; topics; physical, cognitive, affective and environmental factors; and experiences relating to sharing health information online. The motives for not sharing information included information absence and inappropriateness. The most preferred topic was disease. Good subjective health was significantly associated with frequent information sharing while individuals with a history of disease involving themselves or family members were more likely to share health information than were those without such a history. Further, a higher level of depressed mood was related to a higher level of sharing. Internet-related self-efficacy and trust in information delivery channels were positively related to sharing. Future research could extend the factors related to information sharing to include the evaluation of shared information. PMID- 29040500 TI - Chlamydia trachomatis plasmid-encoded protein pORF5 protects mitochondrial function by inducing mitophagy and increasing HMGB1 expression. AB - Chlamydia trachomatis, an obligate intracellular pathogen, has various effective strategies to regulate host cell death signalling pathways that ensure completion of their growth cycle. Mitochondrial autophagy (mitophagy) is responsible for elimination of dysfunctional and impaired mitochondria, and this process plays a critical role in cell survival via restriction of the mitochondrial apoptotic pathway. However, the specific molecular mechanisms are not entirely understood. In the present study, we observed that pORF5 plasmid protein of C. trachomatis plays a crucial role in attenuating mitochondrial dysfunction and apoptosis. Knockdown high mobility group box 1 (HMGB1) by lentivirus suppressed pORF5 induced mitophagy and increased apoptosis, implying that pORF5 may participate in cell death signalling pathways via up-regulation of HMGB1. Thus, we concluded that up-regulation of HMGB1 is a pivotal event for C. trachomatis that manipulates mitophagy and apoptosis in order to establish a favourable environment supportive of Chlamydial growth, which should further promote our understanding of Chlamydial pathogenic mechanisms. PMID- 29040501 TI - Tissue damage induced midgut stem cell proliferation and microbial dysbiosis in Spodoptera litura. AB - In the past decade, gut microbiota has come to the fore in search for the cause of disregulation in intestinal homeostasis. Here, we report a possible link between gut microbial dynamics and stress-inducing factors using the leaf worm moth Spodoptera litura as a model organism. Investigation reveals that S. litura exhibits dysbiosis i.e. alteration in the gut microbiota composition that might induce or suppress inflammation upon exposure to dextran sulfate sodium salt, a tissue damaging agent (DSS, 40 kD). It primarily corresponds to an expansion of the bacterial phylotypes Enterobacter sp., Pseudomonas sp., Escherichia sp. and Acinetobacter sp. belonging to subclass Gammaproteobacteria. To assess the role played by gut residents in midgut inflammation, we re-colonized the axenic insects with Pseudomonas, Enterobacter and Acinetobacter individually. We observed that Pseudomonas and Enterobacter monoassociated insects exhibit inflammatory effects like damage to gut epithelium and hyperproliferation of stem cells under stress conditions. Conversely, Acinetobacter promotes fitness in larvae and reduces inflammatory effects of DSS. However, we failed to detect phenotypic inflammatory changes like midgut epithelium damage and stem cell proliferation in axenic insects reared on DSS-supplemented diet. Our results highlight that gut commensals that apparently remain low in abundance and benign under typical conditions can exert modulatory (positive or negative) effects on host fitness in the presence of stimulator. PMID- 29040502 TI - Comparative genomics of the genus Desulfitobacterium. AB - The Desulfitobacterium genus comprises anaerobic Gram-positive bacteria, of which the majority are facultative organohalide respirers. We here present the genomes of eight strains of Desulfitobacterium spp., including five strains of Desulfitobacterium hafniense, one strain each from D. dichloroeliminans and D. metallireducens, and one strain that had not been assigned to any species prior to this study. The newly sequenced genomes were compared with four previously published desulfitobacterial genomes. The average genome sizes are 5.5, 4.3 and 3.4 Mbp for D. hafniense, D. dehalogenans and D. dichloroeliminans/metallireducens, respectively. The genomes encode up to seven reductive dehalogenases, the genomes of both D. hafniense DP7 and D. metallireducens 853-15AT did not encode any reductive dehalogenase. The latter result was a surprise as D. metallireducens 853-15AT has been reported to carry out organohalide respiration. Unlike reported for the pceABCT gene cluster, the other reductive dehalogenase gene clusters do not show any signs of being genetically mobile. All analyzed desulfitobacterial genomes encode a complete cobalamin synthesis pathway. A menaquinone synthesis pathway was found in all strains except D. dichloroeliminans DCA1T. The detailed analysis of the genome sequence of 12 desulfitobacteria from four different species confirmed that this genus has an extremely large metabolic repertoire. PMID- 29040504 TI - Implementing multiple intervention strategies in Dutch public health-related policy networks. AB - Improving public health requires multiple intervention strategies. Implementing such an intervention mix is supposed to require a multisectoral policy network. As evidence to support this assumption is scarce, we examined under which conditions public health-related policy networks were able to implement an intervention mix. Data were collected (2009-14) from 29 Dutch public health policy networks. Surveys were used to identify the number of policy sectors, participation of actors, level of trust, networking by the project leader, and intervention strategies implemented. Conditions sufficient for an intervention mix (>=3 of 4 non-educational strategies present) were determined in a fuzzy-set qualitative comparative analysis. A multisectoral policy network (>=7 of 14 sectors present) was neither a necessary nor a sufficient condition. In multisectoral networks, additionally required was either the active participation of network actors (>=50% actively involved) or active networking by the project leader (>=monthly contacts with network actors). In policy networks that included few sectors, a high level of trust (positive perceptions of each other's intentions) was needed-in the absence though of any of the other conditions. If the network actors were also actively involved, an extra requirement was active networking by the project leader. We conclude that the multisectoral composition of policy networks can contribute to the implementation of a variety of intervention strategies, but not without additional efforts. However, policy networks that include only few sectors are also able to implement an intervention mix. Here, trust seems to be the most important condition. PMID- 29040503 TI - The role of early life growth development, the FTO gene and exclusive breastfeeding on child BMI trajectories. AB - Background: Recent studies have implicated the FTO gene in child and adult obesity. A longer duration of exclusive breastfeeding (EXBF) has been shown to reduce body mass index (BMI) and the risk of being overweight in the general population and among FTO gene carriers. However, it remains unclear whether the preventive effect of EXBF could be explained by its impact on early life growth development, e.g. ages at adiposity peak (AP) and adiposity rebound (AR) and BMI velocities in the first years of life, which are major determinants of overweight and obesity later in life. Methods: We studied 5590 children from the British Avon Longitudinal Study of Parents and Children (ALSPAC) cohort and modelled their longitudinal BMI profiles with mixed effects models from birth to 16 years of age, as well as their ages at AP, AR and BMI velocities in relation to the FTO gene variant and EXBF. Results: A longer duration of EXBF (i.e. at least 5 months) has substantial impact on BMI growth trajectories among children carrying the FTO adverse variant by modulating the age at AP, age at AR and BMI velocities. EXBF acts antagonistically to the FTO rs9939609 risk allele and by the age of 15, the predicted reduction in BMI after 5 months of EXBF is 0.56 kg/m2 [95% confidence interval (CI) 0.11-1.01; P = 0.003] and 1.14 kg/m2 (95% CI 0.67-1.62; P < 0.0001) in boys and girls, respectively. Conclusions: EXBF influences early life growth development and thus plays a critical role in preventing the risks of overweight and obesity even when those are exacerbated by genetic factors. PMID- 29040505 TI - Late booking amongst African women in a London borough, England: implications for health promotion. AB - The National Institute for Health and Clinical Excellence guidance is that a pregnant woman should see a midwife within the first 13 weeks into her pregnancy, in what is known as the 'booking appointment' or the 'full assessment' where she discusses with the midwife her care plan, medical and family histories and social circumstances. Significant numbers of black African women present after 13 weeks into the pregnancy. This study explores why black African women access the booking appointment after 13 weeks of pregnancy in a London borough. The study took a qualitative approach and used semi-structured interviews with 23 women who self-identified as black African migrants born in a sub-Saharan African country, and had experience of using ante-natal services in the borough. Participants discussed how their cultural understandings of pregnancy influenced timing of the booking appointment. The data was analysed using the thematic approach. Cultural, economic and political contexts within which they experienced pregnancy influenced the timing. Whilst acknowledging the benefits of early booking, this was said to be at odds with their cultural beliefs where pregnancy disclosure within 13 weeks was considered inappropriate. Lack of information about the booking appointment and unresolved immigration issues led to perceptions that they were being brought under the Immigration Department's radar through the booking appointment. Whilst most health promotion information regarding the booking appointment is designed in a top-down fashion, health planners should also recognize ethnic diversities so as to market the booking appointment using downstream approaches that take account of the cultural, political and economic contexts in which migrants/ethnic minority populations live. PMID- 29040506 TI - High-throughput sequencing revealed novel Dehalococcoidia in dechlorinating microbial enrichments from PCB-contaminated marine sediments. AB - In this study, six PCE-to-ethene dechlorinating cultures, fed with a fermentable substrate (lactate) or hydrogen as electron donor, were obtained from PCB and PCE dechlorinating microcosms constructed with PCB-contaminated marine sediments. A novel Chloroflexi member (OTU-DIS1) affiliated to Dehalococcoidales Incertae Sedis, only distantly related to known dechlorinating bacteria, dominated the enrichment cultures (up to 86% of total OTUs). Sulfate-, thiosulfate- and sulfur reducing bacteria affiliated to genera Desulfobacter, Dethiosulfatibacter and Desulfuromusa were also found to lesser extent. Remarkably, tceA, vcrA and the bifunctional PCE/PCB dehalogenase genes pcbA1, pcbA4 and pcbA5 were found in all dechlorinating microbial enrichments indicating the coexistence of different Dehalococcoides mccartyi strains. The reductive dechlorination rate in each culture remained unvaried over long-term operation (~ 30 months) and ranged between 0.85 and 0.97 mmol Cl-1 released L-1 d-1 in the lactate-fed microbial enrichments and between 0.66 and 0.85 mmol Cl-1 released L-1 d-1 in the H2-fed microbial enrichments. Overall, this study highlights the presence of yet unexplored biodiversity in PCBs contaminated marine sediments and indicates these environments as promising sources of novel organohalide-respiring bacteria. PMID- 29040507 TI - Aortic valve replacement improves survival in severe aortic stenosis with gradient-area mismatch. AB - OBJECTIVES: To investigate whether and in which patients with catheter-derived low pressure gradient (PG, <40 mmHg) severe (aortic valve area <= 1 cm2) aortic stenosis and preserved left ventricular ejection fraction, early aortic valve replacement (AVR) might improve survival. METHODS: We investigated a total of 506 consecutive patients (age 75 +/- 9 years, 58% men) with either moderate aortic stenosis (MAS) or severe aortic stenosis (SAS) and preserved left ventricular ejection fraction (>=50%) as defined at catheterization. Propensity score matching was used to select matched pairs of patients with and without AVR in each group. A 100% complete follow-up of all cause death was obtained after a median of 6.6 years (interquartile range 3.4-8.8 years). RESULTS: There were 62 (12%) patients with MAS, 119 (24%) patients with SAS and low (<40 mmHg) PG and 325 (64%) patients with SAS and high PG. Significantly less patients with MAS and low-gradient SAS underwent AVR compared to patients with high gradient SAS (58% vs 60% vs 83%, P < 0.001). In propensity score-matched patients, AVR was independently associated with a decrease in all-cause mortality in all groups (P < 0.05) regardless of the PG, stroke volume or aortic valve area. CONCLUSIONS: The present data indicate a that AVR improves survival in SAS regardless of the gradient and flow. This advocates an 'early-AVR' rather than a 'watchful waiting' strategy. PMID- 29040508 TI - Adult Lifetime Diet Quality and Physical Performance in Older Age: Findings From a British Birth Cohort. AB - Background: Current evidence that links "healthier" dietary patterns to better measured physical performance is mainly from older populations; little is known about the role of earlier diet. We examined adult diet quality in relation to physical performance at age 60-64 years. Methods: Diet quality was defined using principal component analysis of dietary data collected at age 36, 43, 53, and 60 64. Throughout adulthood, diets of higher quality were characterized by higher consumption of fruit, vegetables, and wholegrain bread. Diet quality scores calculated at each age indicated compliance with this pattern. Physical performance was assessed using chair rise, timed-up-and-go, and standing balance tests at age 60-64. The analysis sample included 969 men and women. Results: In gender-adjusted analyses, higher diet quality at each age was associated with better measured physical performance (all p < .01 for each test), although some associations were attenuated after adjustment for covariates. Diet quality scores were highly correlated in adulthood (0.44 <= r <= 0.67). However, conditional models showed that higher diet quality at age 60-64 (than expected from scores at younger ages), was associated with faster chair rise speed and with longer standing balance time (adjusted: 0.08 [95% CI: 0.02, 0.15] and 0.07 [0.01, 0.14] SD increase in chair rise speed and balance time, respectively, per SD increase in conditional diet quality; both p < .05). Conclusions: Higher diet quality across adulthood is associated with better physical performance in older age. Current diet quality may be particularly important for physical performance, suggesting potential for improvements in diet in early older age. PMID- 29040509 TI - A new use for an old tool: maternity waiting homes to improve equity in rural childbirth care. Results from a cross-sectional hospital and community survey in Tanzania. AB - Limited quality of childbirth care in sub-Saharan Africa primarily affects the poor. Greater quality is available in facilities providing advanced management of childbirth complications. We aimed to determine whether Maternity Waiting Homes (MWHs) may be a tool to improve access of lower socio-economic women to such facilities. Secondary analysis of a cross-sectional hospital survey from Iringa District, Tanzania was carried out. Women who delivered between October 2011 and May 2012 in the only District facility providing comprehensive Emergency Obstetric Care were interviewed. Their socio-economic profile was obtained by comparison with District representative data. Multivariable logistic regression was used to compare women who had stayed in the MWH before delivery with those who had accessed the hospital directly. Out of 1072 study participants, 31.3% had accessed the MWH. In multivariable analysis, age, education, marital status and obstetric factors were not significantly associated with MWH stay. Adjusted odds ratios for MWH stay increased progressively with distance from the hospital (women living 6-25 km, OR 4.38; 26-50 km, OR 4.90; >50 km, OR 5.12). In adjusted analysis, poorer women were more likely to access the MWH before hospital delivery compared with the wealthiest quintile (OR 1.38). Policy makers should consider MWH as a tool to mitigate inequity in rural childbirth care. PMID- 29040510 TI - Genomic fragmentation and extrachromosomal telomeric repeats impact assessment of telomere length in human spermatozoa: quantitative experiments and systematic review. AB - STUDY QUESTION: Can differences in DNA isolation alter assessment of sperm telomere length (spTL) and do they account for conflicting results in the literature on spTL and male fertility? SUMMARY ANSWER: DNA isolation methods preferentially include or exclude short, extrachromosomal (EC) telomere-specific sequences that alter spTL measurements, and are responsible for a proportion of the disparity observed between investigations. WHAT IS KNOWN ALREADY: The relationship between spTL and male fertility has become an active area of research. The results across investigations, however, have been discordant, generating a need to critically evaluate the existing body of knowledge to guide future investigations. STUDY DESIGN, SIZE, DURATION: Quantitative experiments determined the effect of DNA isolation on the integrity of sperm DNA and measures of spTL, while a systematic analysis of the current literature evaluated the effect of DNA isolation and study design on experimental outcomes. PARTICIPANTS/MATERIALS, SETTING, METHODS: Two DNA isolation methods were compared: Genomic Tips which isolate 'High Molecular Weight' (HMW) DNA exclusively, and QIAamp(r) DNA Mini which isolates 'Total' genomic DNA irrespective of size. DNA quality was assessed via field inversion gel electrophoresis (FIGE) and spTL was measured via terminal restriction fragment analysis. In addition, major databases in medicine, health and the life sciences were subject to a targeted search, and results were independently screened according to defined exclusion/inclusion criterion. Findings from primary articles were analyzed for concordance and study designs were compared across six moderator variables (sample size, participant age, fertility status, semen fraction, telomere population and type of analysis). MAIN RESULTS AND THE ROLE OF CHANCE: HMW DNA spTL was significantly longer than spTL measured from total DNA (P < 0.01), indicating that Total DNA contained short, EC telomeric repeats that shifted downstream assessment towards shorter spTL. HMW DNA spTL reflected the length of intact, chromosomal telomeres. Major findings on spTL showed the greatest concordance amongst studies that implemented HMW DNA isolation prior to spTL assessment. Studies that utilized Total DNA varied in concordance, but outcomes were similar if (i) a comparative analysis was applied or (ii) a sample size threshold of 81 was achieved for correlative analysis. LIMITATIONS, REASONS FOR CAUTION: Chromosomal and EC telomeric DNA were distinguished based on outcomes of HMW DNA isolation and size. Further experiments are required to determine the nature and function of these two types of telomeric sequences. WIDER IMPLICATIONS OF THE FINDINGS: This study reveals a dramatic impact of upstream DNA processing and study design on measurements of spTL, which accounts for conflicting results in the literature. Future assessments of spTL should incorporate independent detection of chromosomal and EC telomeric DNA and specific experimental planning. STUDY FUNDING/COMPETING INTERESTS: This study was funded by CReATe Fertility Centre, Toronto, Ontario, Canada. The authors have declared no conflict of interest. REGISTRATION NUMBER: N/A. PMID- 29040511 TI - Development of the testis in pre-pubertal boys with cancer after biopsy for fertility preservation. AB - STUDY QUESTION: Is testicular growth affected by a testicular biopsy intended for fertility preservation in pre-pubertal boys with cancer? SUMMARY ANSWER: Testicular growth of the biopsied testis is not impeded in comparison to the non biopsied contralateral testis up until 1 year after surgery. WHAT IS KNOWN ALREADY: Fertility preservation in pre-pubertal boys by means of testicular biopsy has been conducted for more than 15 years. Although immediate adverse effects of testicular biopsy are rare (1%), no data exist on the effect of biopsy on testicular growth. STUDY DESIGN, SIZE, DURATION: In this prospective cohort study, between March 2011 and February 2017, 93 parents of pre-pubertal boys were offered cryopreservation of testicular tissue of their son, of whom 78 consented. Sixty-four boys were included in this follow-up study. PARTICIPANTS/MATERIALS, SETTING, METHODS: All boys with cancer at the paediatric oncology department of the Academic Medical Center (AMC) who needed gonadotoxic therapy and were unable to ejaculate were offered cryopreservation of testicular tissue prior to treatment. By testicular ultrasound before and after biopsy (1, 6 and 12 months after biopsy), volume and parenchymal abnormalities were assessed. Data were analysed using mixed-effects modelling. MAIN RESULTS AND THE ROLE OF CHANCE: Of the 64 included boys all were followed up at 1 month, 58 at 6 months and 55 at 12 months. Mean testicular volumes after 1, 6 and 12 months after biopsy were 1.7 +/ 2.1, 1.7 +/- 2.2 and 1.9 +/- 2.4 for the biopsied testis and 1.8 +/- 2.2, 1.8 +/ 2.3 and 2.0 +/- 2.2 for the non-biopsied testis, respectively. Biopsy of the testis did not have a significant impact on testicular growth. Immediate adverse effects of the biopsy, i.e. wound infections, were seen in 3/78 boys (3.8%). LIMITATIONS, REASONS FOR CAUTION: Although it is the largest cohort available to date, the number of patients included in our follow-up is still relatively small. A larger cohort would be able to evaluate growth more precisely. Follow-up was discontinued in a significant portion of boys, 12/76 (15.8%), mainly because of death due to primary illness but also because they could not be reached or declined further follow-up. WIDER IMPLICATIONS OF THE FINDINGS: These reassuring data may be used in counselling future boys who are eligible for fertility preservation and their parents. STUDY FUNDING/COMPETING INTEREST(S): Study funded by KIKA Foundation (Kika 86), Grant from the Netherlands Organisation for Health Research and Development (ZonMW TAS-116003002). The authors declare no conflict of interest. TRIAL REGISTRATION NUMBER: CCMO-register: NL27690.000.09. PMID- 29040512 TI - Fertility-related knowledge and reproductive goals in childhood cancer survivors: short communication. AB - STUDY QUESTION: Do young adult survivors of childhood cancer know their fertility status, in the context of their parenthood goals and screening for gonadal functioning? SUMMARY ANSWER: While 80% of survivors (who were without children) wanted children in the future, most did not know their fertility status, and screening for gonadal functioning was underutilized. WHAT IS KNOWN ALREADY: Survivors of childhood cancer are at risk for infertility, but fertility counseling and assessment are underutilized. Separate studies indicated that survivors' fertility-related knowledge is poor and that they often wanted to have children. Yet, studies have not investigated the intersection of both issues, as well as potential distress if parenthood goals are not met. STUDY DESIGN, SIZE, DURATION: Young adult male and female survivors of childhood cancer (N = 149) completed cross-sectional surveys, and data for those without children (n = 105, 70.5%) are presented here. PARTICIPANTS/MATERIALS, SETTING, METHODS: Participants were 20-40 years old (M = 26.5), diagnosed 5-33 years prior to study participation, and completed questionnaires online. Knowledge of fertility status, parenthood goals, and potential distress if survivors were unable to have children were assessed. Medical records were reviewed for hormone levels as indicators of screening for gonadal functioning. MAIN RESULTS AND THE ROLE OF CHANCE: Most survivors (n = 81; 77.1%) did not know their fertility status, while over 80% (n = 89) wanted children (neither aspect varied by socio demographic/cancer-specific factors). Two-thirds of survivors indicated they would be distressed if parenthood goals remained unfulfilled; especially female (versus male, t = 2.64; P = 0.01) or partnered (versus single, t = -3.45; P < 0.001) survivors. Forty survivors (38.1%) had documented assessments of gonadal functioning, of which 33 (82.5%) reported not knowing their fertility status. LIMITATIONS, REASONS FOR CAUTION: Relevant risk factors may have not been identified owing to limited sample size and missing treatment information. The underutilization of screening for gonadal functioning needs further exploration in other pediatric centers. WIDER IMPLICATIONS OF THE FINDINGS: Most adult childhood cancer survivors want to become parents, but do not know their fertility status, which could cause significant psychological distress. Healthcare providers should continuously address fertility among survivors, but more research is needed on how to implement routine fertility counseling and/or testing. STUDY FUNDING/COMPETING INTEREST(S): This study was funded by the Research Institute at Nationwide Children's Hospital (V.L.) and Dutch Cancer Society (RUG2009-4442, M.A.T.). All authors have no conflict of interest to declare. PMID- 29040514 TI - Commentary: Fisher 1918: the foundation of the genetics and analysis of complex traits. PMID- 29040513 TI - Targeted metabolomics reveals reduced levels of polyunsaturated choline plasmalogens and a smaller dimethylarginine/arginine ratio in the follicular fluid of patients with a diminished ovarian reserve. AB - STUDY QUESTION: Does the metabolomic profile of the follicular fluid (FF) of patients with a diminished ovarian reserve (DOR) differ from that of patients with a normal ovarian reserve (NOR)? SUMMARY ANSWER: The metabolomic signature of the FF reveals a significant decrease in polyunsaturated choline plasmalogens and methyl arginine transferase activity in DOR patients compared to NOR patients. WHAT IS KNOWN ALREADY: The composition of the FF reflects the exchanges between the oocyte and its microenvironment during its acquisition of gametic competence. Studies of the FF have allowed identification of biomarkers and metabolic pathways involved in various pathologies affecting oocyte quality, but no large metabolomic analysis in the context of ovarian ageing and DOR has been undertaken so far. STUDY DESIGN, SIZE, DURATION: This was an observational study of the FF retrieved from 57 women undergoing in vitro fertilization at the University Hospital of Angers, France, from November 2015 to September 2016. The women were classified in two groups: one including 28 DOR patients, and the other including 29 NOR patients, serving as controls. PARTICIPANTS/MATERIALS, SETTING, METHODS: Patients were enrolled in the morning of oocyte retrieval after ovarian stimulation. Once the oocytes were isolated for fertilization and culture, the FF was pooled and centrifuged for analysis. A targeted quantitative metabolomic analysis was performed using high-performance liquid chromatography coupled with tandem mass spectrometry, and the Biocrates Absolute IDQ p180 kit. The FF levels of 188 metabolites and several sums and ratios of metabolic significance were assessed by multivariate and univariate analyses. MAIN RESULTS AND THE ROLE OF CHANCE: A total of 136 metabolites were accurately quantified and used for calculating 23 sums and ratios. Samples were randomly divided into training and validation sets. The training set, allowed the construction of multivariate statistical models with a projection-supervised method, i.e. orthogonal partial least squares discriminant analysis (OPLS-DA), applied to the full set of metabolites, or the penalized least absolute shrinkage and selection operator with logistic regression (LASSO-LR), applied to the ratios and sums of the metabolites. Both multivariate models showed good predictive performances when applied to the validation set. The final penalized model retained the three most significant variables, i.e. the total dimethylarginine-to-arginine ratio (Total DMA/Arginine), the sum of the polyunsaturated choline plasmalogens (PUFA ae), and the patient's age. The negative coefficients of Total DMA/Arginine and PUFA ae indicated that these FF variables had lower values in DOR patients than in NOR patients. LARGE SCALE DATA: N/A. LIMITATIONS REASONS FOR CAUTION: This study presents two limitations. First, with this targeted metabolomics analysis, we have explored only a limited portion of the FF metabolome. Second, although the signature found was highly significant, the mechanism underlying the dysfunction remains undetermined. WIDER IMPLICATIONS OF THE FINDINGS: The understanding of the mechanisms implied in ovarian ageing is essential for providing an adequate response to affected women desiring pregnancy. Our study proposes an incoming signature that may open new paths towards this goal. STUDY FUNDING/COMPETING INTEREST(S): This study was supported by the University Hospital of Angers, the University of Angers, and the French national research centers, INSERM and the CNRS. There were no competing interests. PMID- 29040517 TI - Filamin A mitral valve disease: prolapse, dystrophy, or dysplasia? PMID- 29040515 TI - Resilience and recovery of Dehalococcoides mccartyi following low pH exposure. AB - Bioremediation treatment (e.g. biostimulation) can decrease groundwater pH with consequences for Dehalococcoides mccartyi (Dhc) reductive dechlorination activity. To explore the pH resilience of Dhc, the Dhc-containing consortium BDI was exposed to pH 5.5 for up to 40 days. Following 8- and 16-day exposure periods to pH 5.5, dechlorination activity and growth recovered when returned to pH 7.2; however, the ability of the culture to dechlorinate vinyl chloride (VC) to ethene was impaired (i.e. decreased rate of VC transformation). Dhc cells exposed to pH 5.5 for 40 days did not recover the ethene-producing phenotype upon transfer to pH 7.2 even after 200 days of incubation. When returned to pH 7.2 conditions after an 8-, a 16- and a 40-day low pH exposure, tceA and vcrA genes showed distinct fold increases, suggesting Dhc strain-specific responses to low pH exposure. Furthermore, a survey of Dhc biomarker genes in groundwater samples revealed the average abundances of Dhc 16S rRNA, tceA and vcrA genes in pH 4.5-6 groundwater were significantly lower (P-value < 0.05) than in pH 6-8.3 groundwater. Overall, the results of the laboratory study and the assessment of field data demonstrate that sustained Dhc activity should not be expected in low pH groundwater, and the duration of low pH exposure affects the ability of Dhc to recover activity at circumneutral pH. PMID- 29040516 TI - Integrated mental health services in China: challenges and planning for the future. AB - Eager to build an integrated community-based mental health system, in 2004 China started the '686 Programme', whose purpose was to integrate hospital and community services for patients with serious mental illness. In 2015, the National Mental Health Working Plan (2015-2020) proposed an ambitious strategy for implementing this project. The goal of this review is to assess potential opportunities for and barriers to successful implementation of a community-based mental health system that integrates hospital and community mental health services into the general healthcare system. We examine 7066 sources in both English and Chinese: the academic peer-reviewed literature, the grey literature on mental health policies, and documents from government and policymaking agencies. Although China has proposed a number of innovative programmes to address its mental health burden, several of these proposals have yet to be fully activated, particularly those that focus on integrated care. Integrating mental health services into China's general healthcare system holds great promise for increased access to and quality improvement in mental health services, as well as decreased stigma and more effective management of physical and mental health comorbidities. This article examines the challenges to integrating mental health services into China's general healthcare system, especially in the primary care sphere, including: accurately estimating mental health needs, integrating mental and physical healthcare, increasing workforce development and training, resolving interprofessional issues, financing and funding, developing an affordable and sustainable mental health system, and delivering care to specific subpopulations to meet the needs of China's diverse populace. As China's political commitment to expanding its mental health system is rapidly evolving, we offer suggestions for future directions in addressing China's mental health needs. PMID- 29040518 TI - Challenges in comparing the non-vitamin K antagonist oral anticoagulants for atrial fibrillation-related stroke prevention. AB - The aim of this review is to provide context for meta-analyses interpreting data from phase III stroke prevention studies of non-vitamin K antagonist oral anticoagulants (NOACs) in patients with non-valvular atrial fibrillation (NVAF). Differences between the four phase III NOAC stroke prevention studies in patients with NVAF (ROCKET AF, ARISTOTLE, RE-LY, and ENGAGE AF), their potential impact on outcomes, and inter-study differences were evaluated, as well as the potential role of real-world evidence in evaluating NOACs in this setting. Study design differences included blinding strategy, dose-reduction options, and transition from blinded treatment to standard of care. There were small but relevant variations in the definition of AF used (RE-LY used the least precise definition); patient risk profiles (ROCKET AF patients had the highest risk); the primary safety outcome (a composite of major bleeding and clinically relevant non major bleeding events in ROCKET AF vs. major bleeding in the others); and the definitions of stroke, major bleeding, and clinically relevant non-major bleeding events. In real-world studies, methodological variations and biases are amplified, making cross-study comparisons and meta-analyses problematic. Because of these methodological differences, meta-analyses of phase III studies need to be robust, and if outcomes of the reference (warfarin-treated) arms differ significantly, the basis of the meta-analysis is not strong. These key issues need to be taken into consideration for direct comparisons across studies, and for the interpretation of meta-analytic data. PMID- 29040519 TI - High gonadotropin dosage does not affect euploidy and pregnancy rates in IVF PGS cycles with single embryo transfer. AB - STUDY QUESTION: Does high gonadotropin dosage affect euploidy and pregnancy rates in PGS cycles with single embryo transfer? SUMMARY ANSWER: High gonadotropin dosage does NOT affect euploidy and pregnancy rates in PGS cycles with single embryo transfer. WHAT IS KNOWN ALREADY: PGS has been proven to be the most effective and reliable method for embryo selection in IVF cycles. Euploidy and blastulation rates decrease significantly with advancing maternal age. In order to recruit an adequate number of follicles, the average dosage of gonadotropins administered during controlled ovarian stimulation in IVF cycles often increases significantly with advancing maternal age. STUDY DESIGN, SIZE, AND DURATION: A retrospective study of SNP (Single Nucleotide Polymorphism) PGS outcome data from blastocysts biopsied on day 5 or day 6 was conducted to identify differences in euploidy and clinical pregnancy rates. Seven hundred and ninety four cycles of IVF treatment with PGS between January 2013 and January 2017 followed by 651 frozen embryo transfers were included in the study (506 patients, maternal age (y.o.) - 37.2 +/- 4.31). PARTICIPANTS/MATERIALS, SETTING, METHODS: A total of 4034 embryos were analyzed (5.1 +/- 3.76 per case) for euploidy status. All embryos were vitrified after biopsy, and selected embryos were subsequently thawed for a hormone replacement frozen embryo transfer cycle. All cycles were analyzed by total gonadotropin dosage (<3000 IU, 3000-5000 IU and >5000 IU), by number of eggs retrieved (1-5, 5-10, 10-15 and >15 eggs) and patient's age (<35, 35-37, 38-40 and >=41 y.o.). Clinical pregnancy rate was defined by the presence of a fetal heartbeat at 6-7 weeks of gestation. MAIN RESULTS AND THE ROLE OF CHANCE: Euploidy rates within the same age group were not statistically different regardless of the total dosage of gonadotropins used or the number of eggs retrieved. In the youngest group of patients (<35 y.o. - 187 IVF cycles) euploidy rates ranged from 62.3% (<3000 IU were used in the IVF cycle) to 67.5% (>5000 IU were used in the IVF cycle) (OR = 0.862, 95% CI 0.687-1.082, P = 0.2) and from 69.5% (1-5 eggs retrieved) to 60.0% (>15 eggs retrieved) (OR = 0.658, 95% CI 0.405-1.071, P = 0.09). Similar data were obtained in the oldest group of patients (>=41 y.o. - 189 IVF cycles): euploidy rates ranged from 30.7 to 26.4% (OR = 0.811, 95% CI 0.452-1.454, P = 0.481) when analyzed by total dosage of gonadotropins used in the IVF cycle and from 40.0 to 30.7% (OR = 0.531, 95% CI 0.204-1.384, P = 0.19), when assessed by the total number of eggs retrieved. Ongoing pregnancy rates were similar, not only within particular age groups, but also between different age groups regardless of the total dosage of gonadotropins used: ranging from to 63.6% (<3000 IU, < 35 y.o.) to 54.8% (>5000 IU, >=41 y.o) (OR = 0.696, 95% CI 0.310-1.565, P = 0.38). LIMITATIONS, REASONS FOR CAUTION: Retrospective study and heterogeneity of patients included. WIDER IMPLICATIONS OF THE FINDINGS: These data are reassuring for the common practice of increasing gonadotropin dosages in PGS cycles, particularly in older woman. STUDY FUNDING/COMPETING INTEREST(S): No formal funding has been received for this study. TRIAL REGISTRATION NUMBER: N/A. PMID- 29040520 TI - Clinical implications of mitochondrial DNA quantification on pregnancy outcomes: a blinded prospective non-selection study. AB - STUDY QUESTION: Can quantification of mitochondrial DNA (mtDNA) in trophectoderm (TE) biopsy samples provide information concerning the viability of a blastocyst, potentially enhancing embryo selection and improving IVF treatment outcomes? SUMMARY ANSWER: This study demonstrated that euploid blastocysts of good morphology, but with high mtDNA levels had a greatly reduced implantation potential. WHAT IS KNOWN ALREADY: Better methods of embryo selection leading to IVF outcome improvement are necessary, as the transfer of chromosomally normal embryos of high morphological grade cannot guarantee the establishment of an ongoing pregnancy. The quantity of mtDNA in embryonic cells has been proposed as a new biomarker of viability-higher levels of mtDNA associated with reduced implantation potential. STUDY DESIGN, SIZE, DURATION: mtDNA was quantified in 199 blastocysts, previously biopsied and shown to be chromosomally normal using preimplantation genetic testing for aneuploidy (PGT-A). These were generated by 174 couples (average female age 37.06 years). All patients underwent IVF in a single clinic. The study took place in a blinded, non-selection manner-i.e. mtDNA quantity was not known at the time of single embryo transfer. The fate of the embryos transferred was subsequently compared to the mtDNA levels measured. PARTICIPANTS/MATERIALS, SETTING, METHODS: Embryos were biopsied at the blastocyst stage. The TE samples obtained were subjected to whole genome amplification followed by comprehensive chromosome analysis via next generation sequencing. The same biopsy specimens were also tested using quantitative PCR, allowing highly accurate mtDNA quantification. After blastocyst transfer, the code used for blinding was broken and analysis undertaken to reveal whether the amount of mtDNA had any association with embryo implantation. MAIN RESULTS AND THE ROLE OF CHANCE: mtDNA analysis of the 199 blastocysts revealed that 9 (5%) contained unusually high levels of mtDNA. All embryo transfers involved a single chromosomally normal blastocyst of good morphology. Of these, 121 (60%) led to ongoing pregnancies, 11(6%) led to biochemical pregnancies, and 10 (5%) spontaneously miscarried. All (100%) of these blastocysts had mtDNA levels considered to be normal/low. The remaining 57 (29%) blastocysts failed to implant. Among these non-viable embryos there were 9 (16%) with unusually high levels of mtDNA. This meant that the ongoing pregnancy rate for morphologically good, euploid blastocysts, with normal/low levels of mtDNA was 64% (121/190). In contrast, the ongoing pregnancy rate for the same type of embryos, but with elevated mtDNA levels, was 0/9 (0%). This difference was highly statistically significant (P < 0.0001). LIMITATIONS REASONS FOR CAUTION: To determine the true extent of any clinical benefits a randomized clinical trial will be necessary. Research is needed to improve understanding of the biology of mtDNA expansion. WIDER IMPLICATIONS OF THE FINDINGS: This is the first investigation to evaluate the clinical impact of increased mtDNA in a prospective blinded manner. Results confirm that embryos with elevated mtDNA rarely implant, supporting its use as a viability biomarker. A total of 64% of euploid blastocysts with normal/low mtDNA implanted versus 60% for the cohort as a whole. STUDY FUNDING/COMPETING INTEREST(S): This study was supported by institutional funding (Reprogenetics UK and Reprogenetics). DW is supported by the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre Programme. None of the authors have any competing interests. PMID- 29040521 TI - Is the rapidly paced pig the optimal model for endocardial cardiac resynchronization therapy? PMID- 29040523 TI - Is the rapidly paced pig the optimal model for endocardial cardiac resynchronization therapy?-Authors' reply. PMID- 29040522 TI - Behavioral and transcriptomic analysis of Trem2-null mice: not all knockout mice are created equal. AB - It is clear that innate immune system status is altered in numerous neurodegenerative diseases. Human genetic studies have demonstrated that triggering receptor expressed in myeloid cells 2 (TREM2) coding variants have a strong association with Alzheimer's disease (AD) and other neurodegenerative diseases. To more thoroughly understand the impact of TREM2 in vivo, we studied the behavioral and cognitive functions of wild-type (WT) and Trem2-/- (KO) mice during basal conditions and brain function in the context of innate immune stimulation with peripherally administered lipopolysaccharide (LPS). Early markers of neuroinflammation preceded Aif1 and Trem2 upregulation that occurred at later stages (24-48 h post-LPS). We performed a transcriptomic study of these cohorts and found numerous transcripts and pathways that were altered in Trem2-/- mice both at baseline and 48 h after LPS challenge. Importantly, our transcriptome analysis revealed that our Trem2-/- mouse line (Velocigene allele) results in exaggerated Treml1 upregulation. In contrast, aberrantly high Treml1 expression was absent in the Trem2 knockout line generated by the Colonna lab and the Jackson Labs CRISPR/Cas9 Trem2 knockout line. Notably, removal of the floxed neomycin selection cassette ameliorated aberrant Treml1 expression, validating the artifactual nature of Treml1 expression in the original Trem2-/- Velocigene line. Clearly further studies are needed to decipher whether the Treml1 transcriptional artifact is functionally meaningful, but our data indicate that caution is warranted when interpreting functional studies with this particular line. Additionally, our results indicate that other Velocigene alleles or targeting strategies with strong heterologous promoters need to carefully consider downstream genes. PMID- 29040524 TI - Potentiation of excitatory synaptic transmission ameliorates aggression in mice with Stxbp1 haploinsufficiency. AB - Genetic studies point to a major role of de novo mutations in neurodevelopmental disorders of intellectual disability, autism spectrum disorders, and epileptic encephalopathy. The STXBP1 gene encodes the syntaxin-binding protein 1 (Munc18-1) that critically controls synaptic vesicle exocytosis and synaptic transmission. This gene harbors a high frequency of de novo mutations, which may play roles in these neurodevelopmental disorders. However, the system and behavioral-level pathophysiological changes caused by these genetic defects remain poorly understood. Constitutional (Stxbp1+/-), dorsal-telencephalic excitatory (Stxbp1fl/+/Emx), or global inhibitory neuron-specific (Stxbp1fl/+/Vgat) mice were subjected to a behavioral test battery examining locomotor activity, anxiety, fear learning, and social interactions including aggression. Furthermore, measurements of local field potentials in multiple regions of the brain were performed. Stxbp1+/- male mice exhibited enhanced aggressiveness and impaired fear learning associated with elevated gamma activity in several regions of the brain including the prefrontal cortex. Stxbp1fl/+/Emx mice showed fear learning deficits, but neither Stxbp1fl/+/Emx nor Stxbp1fl/+/Vgat mice showed increased aggressiveness. Pharmacological potentiation of the excitatory transmission at active synapses via the systemic administration of ampakine CX516, which enhances the excitatory postsynaptic function, ameliorated the aggressive phenotype of Stxbp1+/- mice. These findings suggest that synaptic impairments of the dorsal telencephalic and subcortical excitatory neurons cause learning deficits and enhanced aggression in Stxbp1+/- mice, respectively. Additionally, normalizing the excitatory synaptic transmission is a potential therapeutic option for managing aggressiveness in patients with STXBP1 mutations. PMID- 29040525 TI - Beta-blockers for heart failure with reduced, mid-range, and preserved ejection fraction: an individual patient-level analysis of double-blind randomized trials. AB - Aims: Recent guidelines recommend that patients with heart failure and left ventricular ejection fraction (LVEF) 40-49% should be managed similar to LVEF >= 50%. We investigated the effect of beta-blockers according to LVEF in double blind, randomized, placebo-controlled trials. Methods and results: Individual patient data meta-analysis of 11 trials, stratified by baseline LVEF and heart rhythm (Clinicaltrials.gov: NCT0083244; PROSPERO: CRD42014010012). Primary outcomes were all-cause mortality and cardiovascular death over 1.3 years median follow-up, with an intention-to-treat analysis. For 14 262 patients in sinus rhythm, median LVEF was 27% (interquartile range 21-33%), including 575 patients with LVEF 40-49% and 244 >= 50%. Beta-blockers reduced all-cause and cardiovascular mortality compared to placebo in sinus rhythm, an effect that was consistent across LVEF strata, except for those in the small subgroup with LVEF >= 50%. For LVEF 40-49%, death occurred in 21/292 [7.2%] randomized to beta blockers compared to 35/283 [12.4%] with placebo; adjusted hazard ratio (HR) 0.59 [95% confidence interval (CI) 0.34-1.03]. Cardiovascular death occurred in 13/292 [4.5%] with beta-blockers and 26/283 [9.2%] with placebo; adjusted HR 0.48 (95% CI 0.24-0.97). Over a median of 1.0 years following randomization (n = 4601), LVEF increased with beta-blockers in all groups in sinus rhythm except LVEF >=50%. For patients in atrial fibrillation at baseline (n = 3050), beta-blockers increased LVEF when < 50% at baseline, but did not improve prognosis. Conclusion: Beta-blockers improve LVEF and prognosis for patients with heart failure in sinus rhythm with a reduced LVEF. The data are most robust for LVEF < 40%, but similar benefit was observed in the subgroup of patients with LVEF 40-49%. PMID- 29040526 TI - Phenology of the Potato Psyllid, Bactericera cockerelli (Hemiptera: Triozidae), and "Candidatus Liberibacter solanacearum" in Commercial Potato Fields in Idaho. AB - Zebra chip disease (ZC) is an emerging disease of potato in which tubers are produced with striped necrotic patterns that make them unmarketable. ZC is associated with the bacterium "Candidatus Liberibacter solanacearum" (Lso), which is transmitted by the potato psyllid, Bactericera cockerelli (Sulc; Hemiptera: Triozidae). First found in Idaho during 2011, ZC now contributes to increased production costs each season via additional insecticide sprays. To clarify the extent and severity of the threat of ZC in Idaho, we sampled potato psyllids in commercial potato fields across the state over four growing seasons (2012-2015). All life stages of psyllids were sampled using a combination of methods (yellow sticky traps, vacuum samples, and leaf samples), and adult psyllids were tested for the presence of Lso by Polymerase Chain Reaction (PCR). Abundance of potato psyllids initially increased gradually over each growing season, then exhibited a sharp late-season rise and a sharp decline as most fields were being harvested. Abundance of psyllids was higher at warmer, lower elevation sites, but infestation onset did not differ between growing regions. Fewer psyllids were collected in vacuum samples than in sticky trap samples. Nymphs and eggs were found only late season and during years with high abundance of adults. Overall incidence of Lso was similar among all years but one. The results presented here clarify our understanding of the seasonal phenology of potato psyllids and Lso in Idaho potato fields and will aid in developing integrated management strategies against this important pest of potato. PMID- 29040528 TI - Improving Cardiovascular Risk Prediction: A Tale of Sisyphus. PMID- 29040527 TI - In- and Out-of-hospital Mortality Associated with Seasonal and Pandemic Influenza and Respiratory Syncytial Virus in South Africa, 2009-2013. AB - Background: Estimates of influenza- and respiratory syncytial virus (RSV) associated mortality burden are important to guide policy for control. Data are limited on the contribution of out-of-hospital deaths to this mortality. Methods: We modeled excess mortality attributable to influenza and RSV infection by applying regression models to weekly deaths from national vital statistics from 2009 through 2013, using influenza and RSV laboratory surveillance data as covariates. We fitted separate models for in- and out-of-hospital deaths. Results: There were 509791 average annual deaths in South Africa, of which 44% (95% confidence interval [CI] 43%-45%) occurred out-of-hospital. Seasonal influenza and RSV all-cause mortality rates were 23.0 (95% CI 11.0-30.6) and 13.2 (95% CI 6.4-33.8) per 100000 population annually (2.3% [95%CI 2.3%-2.4%] and 1.3% [95% CI 1.2%-1.4%] of all deaths respectively). The peak mortality rate was in individuals aged >=75 years (386.0; 95% CI 176.5-466.3) for influenza and in infants (143.4; 95% CI 0-194.8) for RSV. Overall, 63% (95% CI 62%--65%) of seasonal influenza and 48% (95% CI 47%-49%) of RSV-associated deaths occurred out of-hospital. Among children aged <5 years, RSV-associated deaths were more likely to occur in-hospital, whereas influenza-associated deaths were more likely to occur out-of-hospital. The mortality rate was 6.7 (95% CI 6.4-33.8) in the first influenza A(H1N1)pdm09 wave in 2009 and 20.9 (95% CI 6.4-33.8) in the second wave in 2011, with 30% (95% CI 29%-32%) of A(H1N1)pdm09-associated deaths in 2009 occurring out-of-hospital. Discussion: More than 45% of seasonal influenza- and RSV-associated deaths occur out-of-hospital in South Africa. These data suggest that hospital-based studies may substantially underestimate mortality burden. PMID- 29040529 TI - Insulin resistance in a large cohort of women with polycystic ovary syndrome: a comparison between euglycaemic-hyperinsulinaemic clamp and surrogate indexes. AB - STUDY QUESTION: Could surrogate indexes identify insulin resistant individuals among women with polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Surrogate indexes may be able to rule in, but not rule out, insulin resistance in women with PCOS. WHAT IS KNOWN ALREADY: Insulin resistance is a typical finding of women with PCOS and most clinical information on this issue is based upon surrogate indexes of insulin resistance. However, data on the performance of these indexes in PCOS women are very limited. STUDY DESIGN SIZE, DURATION: A retrospective analysis of 406 women referred to our outpatient clinic for hyperandrogenism and/or menstrual dysfunction and submitted to hyperinsulinemic euglycaemic clamp between 1998 and 2015. PARTICIPANTS/MATERIALS, SETTING, METHODS: In total, 375 of these women had PCOS by the Rotterdam criteria and were included in the study. Six surrogate indexes of insulin sensitivity were calculated from glucose and insulin levels, either at fasting (homeostasis model assessment (HOMA), glucose/insulin (G/I) ratio and quantitative insulin sensitivity check index (QUICKI)) or after oral glucose load (Gutt, Stumvoll0-120 and Matsuda). MAIN RESULTS AND THE ROLE OF CHANCE: Overall, insulin resistance, as identified by the M-clamp value, was found in 74.9% of these women. The percentage was 59.3% in normal-weight vs 77.5% in overweight and 93.9% in obese subjects. All surrogate indexes were highly correlated with the M-clamp values. However, their ability to identify insulin resistant individuals was limited, in terms of sensitivity and especially in normal-weight subjects. ROC analysis showed similar performances of these indexes (AUC values 0.782-0.817). LIMITATIONS REASONS FOR CAUTION: Potential referral bias of PCOS patients may have caused overestimation of the prevalence of insulin resistance in these women. WIDER IMPLICATIONS OF THE FINDINGS: By using surrogate indexes many subjects with PCOS may be erroneously diagnosed as insulin sensitive, especially among normal-weight women. These indexes can be used to rule in, but not rule out, insulin resistance in PCOS. STUDY FUNDING/COMPETING INTEREST(S): Academic grants to P. Moghetti from the University of Verona. All authors declare no conflict of interest. TRIAL REGISTRATION NUMBER: N/A. PMID- 29040530 TI - The prevalence of Type 2 diabetes is not increased in normal-weight women with PCOS. AB - STUDY QUESTION: Is oral glucose tolerance test (OGTT) needed in all women with polycystic ovary syndrome (PCOS)? SUMMARY QNSWER: OGTT is not routinely needed in women with PCOS and BMI < 25 kg/m2. WHAT IS KNOWN ALREADY: PCOS is associated with insulin resistance and increased prevalence of prediabetes and Type 2 diabetes (T2D) which is closely linked to obesity and possibly age, ethnicity and PCOS phenotype. Several guidelines recommend OGTT upon diagnosis of PCOS and during follow-up. STUDY DESIGN, SIZE, DURATION: A Nordic cross-sectional study including 876 women. PARTICIPANTS/MATERIALS, SETTING, METHODS: The 876 Nordic women with PCOS, aged 14-57 years, were examined for T2D and prediabetes (impaired glucose tolerance [IGT] or impaired fasting glucose (IFG) by OGTT. MAIN RESULT AND THE ROLE OF CHANCE: Of all study subjects 3% (23/876) had T2D, 23% (204/876) prediabetes and 74% (649/876) had normal glucose tolerance (NGT). Increased BMI and waist circumference were significantly (P < 0.001) associated with prevalence of prediabetes and T2D. No normal-weight woman (BMI < 25 kg/m2) was diagnosed with T2D. The prevalence of BMI >= 25 kg/m2 was 66% (578/ 876). 91% of women (21/23) with T2D had BMI >= 30 kg/m2. Testosterone levels and PCOS phenotype did not predict 2-h glucose levels during OGTT after adjustment for BMI and age. LIMITATIONS, REASONS FOR CAUTION: The present study included cross sectional data and prospective studies are needed to confirm our results. These results may not apply to populations of other ethnic origin. WIDER IMPLICATIONS OF THE FINDINGS: Routine OGTT may not be indicated in normal-weight women with PCOS. STUDY FUNDING/COMPETING INTEREST(S): None. TRIAL REGISTRATION NUMBER: N/A. PMID- 29040531 TI - Survival analysis of the association between antenatal care attendance and neonatal mortality in 57 low- and middle-income countries. AB - Background: Neonatal mortality is unacceptably high in most low- and middle income countries (LMICs). In these countries, where access to emergency obstetric services is limited, antenatal care (ANC) utilization offers improved maternal health and birth outcomes. However, evidence for this is scanty and mixed. We explored the association between attendance for ANC and survival of neonates in 57 LMICs. Methods: Employing standardized protocols to ensure comparison across countries, we used nationally representative cross-sectional data from 57 LMICs (N = 464 728) to investigate the association between ANC visits and neonatal mortality. Cox proportional hazards multivariable regression models and meta regression analysis were used to analyse pooled data from the countries. Kaplan Meier survival curves were used to describe the patterns of neonatal survival in each region. Results: After adjusting for potential confounding factors, we found 55% lower risk of neonatal mortality [hazard ratio (HR) 0.45, 95% confidence interval (CI) 0.42-0.48] among women who met both WHO recommendations for ANC (first visit within the first trimester and at least four visits during pregnancy) in pooled analysis. Furthermore, meta-analysis of country-level risk shows 32% lower risk of neonatal mortality (HR 0.68, 95% CI 0.61-0.75) among those who met at least one WHO recommendation. In addition, ANC attendance was associated with lower neonatal mortality in all the regions except in the Middle East and North Africa. Conclusions: ANC attendance is protective against neonatal mortality in the LMICs studied, although differences exist across countries and regions. Increasing ANC visits, along with other known effective interventions, can improve neonatal survival in these countries. PMID- 29040532 TI - Corrigendum: Cohort Profile: Pregnancy And Childhood Epigenetics (PACE) Consortium. PMID- 29040533 TI - Hippocampal phosphorylated tau induced cognitive decline, dendritic spine loss and mitochondrial abnormalities in a mouse model of Alzheimer's disease. AB - The purpose of our study was to understand the toxic effects of hippocampal phosphorylated tau in tau mice. Using rotarod and Morris water maze (MWM) tests, immunoblotting and immunofluorescence, Golgi-Cox staining and transmission electron microscopy, we assessed cognitive behavior, measured protein levels of mitochondrial dynamics, MAP2, total and phosphorylated tau, and quantified dendritic spines and mitochondrial number and length in 12-month-old tau mice with P301L mutation. Mitochondrial function was assessed by measuring the levels of H2O2, lipid peroxidation, cytochrome oxidase activity and mitochondrial ATP. MWM and rotarod tests revealed that hippocampal learning and memory and motor learning and coordination were impaired in tau mice relative to wild-type (WT) mice. Increased levels of mitochondrial fission proteins, Drp1 and Fis1 and decreased levels of mitochondrial fusion proteins, Mfn1, Mfn2 and Opa1 were found in 12-month-old tau mice relative to age-matched WT mice, indicating that the presence of abnormal mitochondrial dynamics in tau mice. Decreased levels of dendritic protein, MAP2 and increased levels of total and phosphorylated tau proteins were found in tau mice relative to WT mice. Mitochondrial function was defective. Golgi-Cox staining analysis revealed that dendritic spines are significantly reduced. Transmission electron microscopy revealed significantly increased mitochondrial numbers and reduced mitochondrial length in tau mice. These findings suggest that hippocampal accumulation of phosphorylated tau is responsible for abnormal mitochondrial dynamics and reducing dendritic protein MAP2 and dendritic spines and hippocampal based learning and memory impairments, and mitochondrial structural and functional changes in tau mice. Based on these observations, we propose that reduced hippocampal phosphorylated tau is an important therapeutic strategy for AD and other tauopathies. PMID- 29040536 TI - Due diligence in the open-access explosion era: choosing a reputable journal for publication. AB - Faculty are required to publish. Naive and "in-a-hurry-to-publish" authors seek to publish in journals where manuscripts are rapidly accepted. Others may innocently submit to one of an increasing number of questionable/predatory journals, where predatory is defined as practices of publishing journals for exploitation of author-pays, open-access publication model by charging authors publication fees for publisher profit without provision of expected services (expert peer review, editing, archiving, and indexing published manuscripts) and promising almost instant publication. Authors may intentionally submit manuscripts to predatory journals for rapid publication without concern for journal quality. A brief summary of the open access "movement," suggestions for selecting reputable open access journals, and suggestion for avoiding predatory publishers/journals are described. The purpose is to alert junior and seasoned faculty about predatory publishers included among available open access journal listings. Brief review of open access publication, predatory/questionable journal characteristics, suggestions for selecting reputable open access journals and avoiding predatory publishers/journals are described. Time is required for intentionally performing due diligence in open access journal selection, based on publisher/journal quality, prior to manuscript submission or authors must be able to successfully withdraw manuscripts when submission to a questionable or predatory journal is discovered. PMID- 29040534 TI - Macrophages escape Klotho gene silencing in the mdx mouse model of Duchenne muscular dystrophy and promote muscle growth and increase satellite cell numbers through a Klotho-mediated pathway. AB - Duchenne muscular dystrophy (DMD) is a muscle wasting disease in which inflammation influences the severity of pathology. We found that the onset of muscle inflammation in the mdx mouse model of DMD coincides with large increases in expression of pro-inflammatory cytokines [tumor necrosis factor-alpha (TNFalpha); interferon gamma (IFNgamma)] and dramatic reductions of the pro myogenic protein Klotho in muscle cells and large increases of Klotho in pro regenerative, CD206+ macrophages. Furthermore, TNFalpha and IFNgamma treatments reduced Klotho in muscle cells and increased Klotho in macrophages. Because CD206+/Klotho+ macrophages were concentrated at sites of muscle regeneration, we tested whether macrophage-derived Klotho promotes myogenesis. Klotho transgenic macrophages had a pro-proliferative influence on muscle cells that was ablated by neutralizing antibodies to Klotho and conditioned media from Klotho mutant macrophages did not increase muscle cell proliferation in vitro. In addition, transplantation of bone marrow cells from Klotho transgenic mice into mdx recipients increased numbers of myogenic cells and increased the size of muscle fibers. Klotho also acted directly on macrophages, stimulating their secretion of TNFalpha. Because TNFalpha is a muscle mitogen, we tested whether the pro proliferative effects of Klotho on muscle cells were mediated by TNFalpha and found that increased proliferation caused by Klotho was reduced by anti-TNFalpha. Collectively, these data show that pro-inflammatory cytokines contribute to silencing of Klotho in dystrophic muscle, but increase Klotho expression by macrophages. Our findings also show that macrophage-derived Klotho can promote muscle regeneration by expanding populations of muscle stem cells and increasing muscle fiber growth in dystrophic muscle. PMID- 29040537 TI - Chromosomal abnormalities in 1663 infertile men with azoospermia: the clinical consequences. AB - STUDY QUESTION: What is the prevalence of chromosomal abnormalities in azoospermic men and what are the clinical consequences in terms of increased risk for absent spermatogenesis, miscarriages and offspring with congenital malformations? SUMMARY ANSWER: The prevalence of chromosomal abnormalities in azoospermia was 14.4%, and the number of azoospermic men needed to be screened (NNS) to identify one man with a chromosomal abnormality with increased risk for absence of spermatogenesis was 72, to prevent one miscarriage 370-739 and to prevent one child with congenital malformations 4751-23 757. WHAT IS KNOWN ALREADY: Infertility guidelines worldwide advise screening of non-iatrogenic azoospermic men for chromosomal abnormalities, but only few data are available on the clinical consequences of this screening strategy. STUDY DESIGN, SIZE, DURATION: This retrospective multicentre cross-sectional study of non-iatrogenic azoospermic men was performed at the University Hospital Brussels, Belgium, and the University Medical Centre Groningen, The Netherlands, between January 2000 and July 2016. PARTICIPANTS/MATERIALS, SETTING, METHODS: Analysis of clinical registries retrospectively identified 1663 non-iatrogenic azoospermic men with available results of karyotyping and FSH serum levels. Iatrogenic azoospermia was an exclusion criterion, defined as azoospermia after spermatotoxic medical treatment, exogenous androgen suppletion or vasectomy and/or vasovasostomy. Also, men with a clinical diagnosis of anejaculation or hypogonadotropic hypo androgenism and/or FSH values <1.0 U/l were excluded. Chromosomal abnormalities were categorized according to their (theoretical) impact on clinical consequences for the patient (i.e. an increased risk for absence of spermatogenesis) and adverse pregnancy outcomes (i.e. miscarriage or offspring with congenital malformations), in both normogonadotropic (FSH < 10 U/l) and hypergonadotropic (FSH >= 10 U/l) azoospermia. We estimated the NNS for chromosomal abnormalities to identify one man with absence of spermatogenesis and to prevent one miscarriage or one child with congenital malformations, and calculated the surgical sperm retrieval rates per chromosomal abnormality. MAIN RESULTS AND THE ROLE OF CHANCE: The overall prevalence of chromosomal abnormalities in azoospermia was 14.4% (95% CI 12.7-16.1%), its prevalence being higher in hypergonadotropic azoospermia (20.2%, 95% CI 17.8-22.7%) compared to normogonadotropic azoospermia (4.9%, 95% CI 3.2-6.6%, P < 0.001). Klinefelter syndrome accounted for 83% (95% CI 77-87%) of abnormalities in hypergonadotropic azoospermia. The NNS to identify one man with increased risk for absence of spermatogenesis was 72, to prevent one miscarriage 370-739, and to prevent one child with congenital malformations 4751-23 757. There was no clinically significant difference in NNS between men with normogonadotropic and hypergonadotropic azoospermia. The surgical sperm retrieval rate was significantly higher in azoospermic men with a normal karyotype (60%, 95% CI 57.7 63.1%) compared to men with a chromosomal abnormality (32%, 95% CI 25.9-39.0%, P < 0.001). The sperm retrieval rate in Klinefelter syndrome was 28% (95% CI 20.7 35.0%). LIMITATIONS, REASONS FOR CAUTION: The absolute number of chromosomal abnormalities associated with clinical consequences and adverse pregnancy outcomes in our study was limited, thereby increasing the role of chance. Further, as there are currently no large series on outcomes of pregnancies in men with chromosomal abnormalities, our conclusions are partly based on assumptions derived from the literature. WIDER IMPLICATIONS OF THE FINDINGS: The NNS found can be used in future cost-effectiveness studies and the evaluation of current guidelines on karyotyping in non-iatrogenic azoospermia. STUDY FUNDING/COMPETING INTEREST(S): None to declare. PMID- 29040538 TI - Immobilization or mobilization after IUI: an RCT. AB - STUDY QUESTION: Does 15 min of immobilization after IUI improve pregnancy rates? SUMMARY ANSWER: Immobilization for 15 min after IUI does not improve pregnancy rates. WHAT IS KNOWN ALREADY: Prior RCTs report a beneficial effect of supine immobilization for 15 min following IUI compared to immediate mobilization, however, these studies can be criticized. Given the importance for the logistics in daily practice and the lack of biological plausibility we planned a replication study prior to potential implementation of this procedure. STUDY DESIGN, SIZE, DURATION: A single centre RCT, based in an academic setting in the Netherlands, was performed. Participants were randomly assigned for 15 min of supine immobilization following IUI for a maximum of six cycles compared to the standard procedure of immediate mobilization following IUI. Participants and caregivers were not blinded to group assignment. An independent researcher used computer-generated tables to allocate treatments. Stratification occurred to the indication of IUI (unexplained or mild male subfertility). Revelation of allocation took place just before the insemination by the caregiver. The primary outcome was ongoing pregnancy rate per couple. PARTICIPANTS/MATERIALS, SETTING, METHODS: A total of 498 couples diagnosed with unexplained or mild male subfertility and an indication for treatment with IUI were approached and randomized in the study, of which 244 participants were assigned to 15 min of supine immobilization and 254 participants to immediate mobilization. MAIN RESULTS AND THE ROLE OF CHANCE: Participant characteristics were comparable between the groups, and 236 participants were analysed in the immobilization group, versus 245 in the mobilization group. The ongoing pregnancy rate per couple was not found to be superior in the immobilization group (one-sided P value = 0.97) with 76/236 ongoing pregnancies (32.2%) being accomplished in the immobilization and 98/245 ongoing pregnancies (40.0%) in the immediate mobilization group (relative risk 0.81; 95% CI [0.63, 1.02], risk difference: 7.8%, 95% CI [-16.4%, 0.8%]). No difference was found in miscarriage rate, multiple gestation rate, live birth rate and time to pregnancy between the groups. LIMITATIONS, REASONS FOR CAUTION: Owing to discontinuation of the planned treatment not all participants reached six IUI cycles or an ongoing pregnancy. However, this is as expected in IUI treatment and mirrors clinical practice. These participants were equally distributed across the two groups. Women with tubal pathology and endocrine disorders were excluded for this trial, and this might narrow generalizability. WIDER IMPLICATIONS OF THE FINDINGS: This study shows no positive effect of 15 min of immobilization following IUI on pregnancy rates. Based on available evidence today, including our study, a possible beneficial effect of supine immobilization after IUI is at least doubtful and straightforward implementation does not seem to be justified. STUDY FUNDING/COMPETING INTEREST(S): No funding was received. All authors have nothing to disclose. TRIAL REGISTRATION NUMBER: Dutch Trial Register NTR 2418. TRIAL REGISTRATION DATE: 20 July 2010. DATE OF FIRST PATIENT's ENROLMENT: 11 August 2010. PMID- 29040539 TI - Explaining recent mortality trends among younger and middle-aged White Americans. AB - Background: Recent research has suggested that increases in mortality among middle-aged US Whites are being driven by suicides and poisonings from alcohol and drug use. Increases in these 'despair' deaths have been argued to reflect a cohort-based epidemic of pain and distress among middle-aged US Whites. Methods: We examine trends in all-cause and cause-specific mortality rates among younger and middle-aged US White men and women between 1980 and 2014, using official US mortality data. We estimate trends in cause-specific mortality from suicides, alcohol-related deaths, drug-related deaths, 'metabolic diseases' (i.e. deaths from heart diseases, diabetes, obesity and/or hypertension), and residual deaths from extrinsic causes (i.e. causes external to the body). We examine variation in mortality trends by gender, age and cause of death, and decompose trends into period- and cohort-based variation. Results: Trends in middle-aged US White mortality vary considerably by cause and gender. The relative contribution to overall mortality rates from drug-related deaths has increased dramatically since the early 1990s, but the contributions from suicide and alcohol-related deaths have remained stable. Rising mortality from drug-related deaths exhibit strong period-based patterns. Declines in deaths from metabolic diseases have slowed for middle-aged White men and have stalled for middle-aged White women, and exhibit strong cohort-based patterns. Conclusions: We find little empirical support for the pain- and distress-based explanations for rising mortality in the US White population. Instead, recent mortality increases among younger and middle-aged US White men and women have likely been shaped by the US opiate epidemic and an expanding obesogenic environment. PMID- 29040540 TI - New debate: is it time for infertility weight-loss programmes to be couple-based? AB - With obesity on the rise in the general population, it has also become more prevalent among people of reproductive age. Weight loss has shown benefits in overweight women and men experiencing fertility problems. However, the existing weight-loss interventions for individuals with infertility are associated with high drop-out rates and limited success. In this article, we argue for the development of weight-loss programmes targeting couples, as couples are routinely seen in fertility clinics, rather than individuals. Couples may have correlated weights, and similar eating and activity patterns. Involving both partners may facilitate mutual support, behaviour change, weight loss and programme continuation, at very little additional cost. A successful couple-based intervention could improve the chances of achieving pregnancy and delivering a healthy baby, with a reduction in pregnancy complications. In the longer run, both partners and their baby could benefit from maintained behaviour change with better health across the lifespan. We conclude that there is a need for research to systematically develop a couple-based weight-loss intervention with state-of the-art design that is tailored to both partners' needs. PMID- 29040541 TI - Placental Nano-vesicles Target to Specific Organs and Modulate Vascular Tone In Vivo. AB - STUDY QUESTION: How do nano-vesicles extruded from normal first trimester human placentae affect maternal vascular function? SUMMARY ANSWER: Placental nano vesicles affect the ability of systemic mesenteric arteries to undergo endothelium- and nitric oxide- (NO-) dependent vasodilation in vivo in pregnant mice. WHAT IS KNOWN ALREADY: Dramatic cardiovascular adaptations occur during human pregnancy, including a substantial decrease in total peripheral resistance in the first trimester. The human placenta constantly extrudes extracellular vesicles that can enter the maternal circulation and these vesicles may play an important role in feto-maternal communication. STUDY DESIGN, SIZE, DURATION: Human placental nano-vesicles were administered into CD1 mice via a tail vein and their localization and vascular effects at 30 min and 24 h post-injection were investigated. PARTICIPANTS/MATERIALS, SETTING, METHODS: Nano-vesicles from normal first trimester human placentae were collected and administered into pregnant (D12.5) or non-pregnant female mice. After either 30 min or 24 h of exposure, all major organs were dissected for imaging (n = 7 at each time point) while uterine and mesenteric arteries were dissected for wire myography (n = 6 at each time point). Additional in vitro studies using HMEC-1 endothelial cells were also conducted to investigate the kinetics of interaction between placental nano vesicles and endothelial cells. MAIN RESULTS AND THE ROLE OF CHANCE: Nano vesicles from first trimester human placentae localized to the lungs, liver and kidneys 24 h after injection into pregnant mice (n = 7). Exposure of pregnant mice to placental nano-vesicles for 30 min in vivo increased the vasodilatory response of mesenteric arteries to acetylcholine, while exposure for 24 h had the opposite effect (P < 0.05, n = 6). These responses were prevented by L-NAME, an NO synthase inhibitor. Placental nano-vesicles did not affect the function of uterine arteries or mesenteric arteries from non-pregnant mice. Placental nano vesicles rapidly interacted with endothelial cells via a combination of phagocytosis, endocytosis and cell surface binding in vitro. LARGE SCALE DATA: N/A. LIMITATIONS REASONS FOR CAUTION: As it is not ethical to administer labelled placental nano-vesicles to pregnant women, pregnant CD1 mice were used as a model of pregnancy. WIDER IMPLICATIONS OF THE FINDINGS: This is the first study to report the localization of placental nano-vesicles and their vascular effects in vivo. This work provides new insight into how the dramatic maternal cardiovascular adaptations to pregnancy may occur and indicates that placental extracellular vesicles may be important mediators of feto-maternal communication in a healthy pregnancy. STUDY FUNDING/COMPETING INTEREST(S): This research was supported by the Faculty of Medical and Health Science (FMHS) School of Medicine PBRF research fund to L.W.C. M.T. is a recipient of a University of Auckland Health Research Doctoral Scholarship and the Freemasons Postgraduate Scholarship. No authors have any competing interests to disclose. PMID- 29040542 TI - High adherence to the Mediterranean diet is associated with cardiovascular protection in higher but not in lower socioeconomic groups: prospective findings from the Moli-sani study. AB - Background: It is uncertain whether the cardiovascular benefits associated with Mediterranean diet (MD) may differ across socioeconomic groups. Methods: Prospective analysis on 18991 men and women aged >=35 years from the general population of the Moli-sani cohort (Italy). Adherence to MD was appraised by the Mediterranean diet score (MDS). Household income (euros/year) and educational level were used as indicators of socioeconomic status. Hazard ratios (HR) were calculated by multivariable Cox proportional hazard models. Results: Over 4.3 years of follow-up, 252 cardiovascular disease (CVD) events occurred. Overall, a two-point increase in MDS was associated with 15% reduced CVD risk (95% confidence interval: 1% to 27%). Such association was evident in highly (HR = 0.43; 0.25-0.72) but not in less (HR = 0.94; 0.78-1.14) educated subjects (P for interaction = 0.042). Similarly, CVD advantages associated with the MD were confined to the high household income group (HR = 0.39; 0.23-0.66, and HR = 1.01; 0.79-1.29 for high- and low-income groups, respectively; P for interaction = 0.0098). In a subgroup of individuals of different socioeconomic status but sharing similar MDS, diet-related disparities were found as different intakes of antioxidants and polyphenols, fatty acids, micronutrients, dietary antioxidant capacity, dietary diversity, organic vegetables and whole grain bread consumption. Conclusions: MD is associated with lower CVD risk but this relationship is confined to higher socioeconomic groups. In groups sharing similar scores of adherence to MD, diet-related disparities across socioeconomic groups persisted. These nutritional gaps may reasonably explain at least in part the socioeconomic pattern of CVD protection from the MD. PMID- 29040543 TI - Cohort Profile: The Oxford Biobank. PMID- 29040545 TI - Ethnicity and place: the geography of diabetes inequalities under a strong welfare state. AB - Background: The Nordic 'health paradox' designates the seemingly puzzling empirical reality in which, despite the presence of strong welfare policies targeting structural inequalities, distinct health disparities persist in Scandinavian societies. In Norway, previous research has shown that inequalities in diabetes prevalence are particularly salient, notably between ethnic groups. These have often been attributed to lifestyle, socioeconomic factors, or genetics. No previous research has sought to investigate the sociospatial mediation of diabetes inequities. Methods: In this article, we examine the social geography of diabetes in Oslo to examine whether the link between ethnicity and diabetes is confounded by place. We use data from the 2002 Oslo Health Study (n = 17 325) to fit logistic regression models, assessing whether contextual factors, such as the concentration of fast food outlets, predict self-reported diabetes outcomes after controlling for relevant individual level covariates. We also test for spatial autocorrelation in the geographical distribution of diabetes. Results: The findings suggest that the organisation of urban space and the spatial distribution of health-related resources exert an independent effect on diabetes prevalence, controlling for ethnicity and other covariates. Living on the east side of Oslo increases the odds of suffering from diabetes by almost 60%, whilst living in a neighbourhood characterized by a relative concentration of fast food and relative absence of healthy food shops and physical exercise facilities increases the odds by 30%. Conclusion: Spatial context and toxic environments contribute to diabetes inequalities in Oslo, Norway. Future research and policy-making should take the geography of health disparities into account. PMID- 29040544 TI - Mutation-specific downregulation of CFTR2 variants by gating potentiators. AB - Approximately 50% of cystic fibrosis (CF) patients are heterozygous with a rare mutation on at least one allele. Several mutants exhibit functional defects, correctable by gating potentiators. Long-term exposure (>=24 h) to the only available potentiator drug, VX-770, leads to the biochemical and functional downregulation of F508del-CFTR both in immortalized and primary human airway cells, and possibly other CF mutants, attenuating its beneficial effect. Based on these considerations, we wanted to determine the effect of chronic VX-770 exposure on the functional and biochemical expression of rare CF processing/gating mutants in human airway epithelia. Expression of CFTR2 mutants was monitored in the human bronchial epithelial cell line (CFBE41o-) and in patient-derived conditionally reprogrammed bronchial and nasal epithelia by short circuit current measurements, cell surface ELISA and immunoblotting in the absence or presence of CFTR modulators. The VX-770 half-maximal effective (EC50) concentration for G551D-CFTR activation was ~0.63 MUM in human nasal epithelia, implying that comparable concentration is required in the lung to attain clinical benefit. Five of the twelve rare CFTR2 mutants were susceptible to ~20-70% downregulation by chronic VX-770 exposure with an IC50 of ~1-20 nM and to destabilization by other investigational potentiators, thereby diminishing the primary functional gain of CFTR modulators. Thus, chronic exposure to VX-770 and preclinical potentiators can destabilize CFTR2 mutants in human airway epithelial models in a mutation and compound specific manner. This highlights the importance of selecting potentiator drugs with minimal destabilizing effects on CF mutants, advocating a precision medicine approach. PMID- 29040547 TI - Urea production by yeasts other than Saccharomyces in food fermentation. AB - Urea is an important intermediate in the synthesis of carcinogenic ethyl carbamate in various food fermentations. Identifying urea-producing microorganisms can help control or reduce ethyl carbamate production. Using Chinese liquor fermentation as a model system, we identified the yeasts responsible for urea production. Urea production was positively correlated to the yeast population (R = 0.523, P = 0.045), and using high-throughput sequencing, we identified 26 yeast species. Partial least squares regression and correlation analysis indicated that Wickerhamomyces anomalus was the most important yeast to produce urea (variable importance plot = 1.927; R = 0.719, P = 0.002). Besides, we found that in W. anomalus the CAR1 gene (responsible for urea production) was 67% identical to that of Saccharomyces cerevisiae. Wickerhamomyces anomalus produced more urea (910.0 MUg L-1) than S. cerevisiae (300.1 MUg L-1). Moreover, urea production increased to 1261.2 MUg L-1 when the two yeasts were co-cultured in a simulated fermentation, where the transcription activity of the CAR1 gene increased by 140% in W. anomalus and decreased by 40% in S. cerevisiae. Our findings confirm that a yeast other than Saccharomyces, namely W. anomalus, contributes more to urea formation in a simulated sorghum fermentation. These findings provide the basis for strategies to control or reduce ethyl carbamate formation. PMID- 29040546 TI - Variation and Functional Impact of Neanderthal Ancestry in Western Asia. AB - Neanderthals contributed genetic material to modern humans via multiple admixture events. Initial admixture events presumably occurred in Western Asia shortly after humans migrated out of Africa. Despite being a focal point of admixture, earlier studies indicate lower Neanderthal introgression rates in some Western Asian populations as compared with other Eurasian populations. To better understand the genome-wide and phenotypic impact of Neanderthal introgression in the region, we sequenced whole genomes of nine present-day Europeans, Africans, and the Western Asian Druze at high depth, and analyzed available whole genome data from various other populations, including 16 genomes from present-day Turkey. Our results confirmed previous observations that contemporary Western Asian populations, on an average, have lower levels of Neanderthal-introgressed DNA relative to other Eurasian populations. Modern Western Asians also show comparatively high variability in Neanderthal ancestry, which may be attributed to the complex demographic history of the region. We further replicated the previously described depletion of putatively functional sequences among Neanderthal-introgressed haplotypes. Still, we find dozens of common Neanderthal introgressed haplotypes in the Turkish sample associated with human phenotypes, including anthropometric and metabolic traits, as well as the immune response. One of these haplotypes is unusually long and harbors variants that affect the expression of members of the CCR gene family and are associated with celiac disease. Overall, our results paint a complex first picture of the genomic impact of Neanderthal introgression in the Western Asian populations. PMID- 29040549 TI - Cohort Profile Update: The Doetinchem Cohort Study 1987-2017: lifestyle, health and chronic diseases in a life course and ageing perspective. PMID- 29040548 TI - European Society of Cardiology smartphone and tablet applications for patients with atrial fibrillation and their health care providers. AB - We are in the midst of a digital revolution in health care, although the application of new and useful technology in routine clinical practice is variable. The Characterizing Atrial fibrillation by Translating its Causes into Health Modifiers in the Elderly (CATCH ME) Consortium, in collaboration with the European Society of Cardiology (ESC), has funded the creation of two applications (apps) in atrial fibrillation (AF) for use in smartphones and tablets. The patient app aims to enhance patient education, improve communication between patients and health care professionals, and encourage active patient involvement in the management of their condition. The health care professional app is designed as an interactive management tool incorporating the new ESC Practice Guidelines on AF and supported by the European Heart Rhythm Association (EHRA), with the aim of improving best practice approaches for the care of patients with AF. Both stand-alone apps are now freely available for Android and iOS devices though the Google Play, Amazon, and Apple stores. In this article, we outline the rationale for the design and implementation of these apps. Our objective is to demonstrate the value of integrating novel digital technology into clinical practice, with the potential for patient engagement, optimization of pharmacological and interventional therapy in AF, and ultimately to improve patient outcomes. PMID- 29040550 TI - Rescue of cell death and inflammation of a mouse model of complex 1-mediated vision loss by repurposed drug molecules. AB - Inherited mitochondrial optic neuropathies, such as Leber's hereditary optic neuropathy (LHON) and Autosomal dominant optic atrophy (ADOA) are caused by mutant mitochondrial proteins that lead to defects in mitochondrial complex 1 driven ATP synthesis, and cause specific retinal ganglion cell (RGC) loss. Complex 1 defects also occur in patients with primary open angle glaucoma (POAG), in which there is specific RGC loss. The treatment of mitochondrial optic neuropathy in the US is only supportive. The Ndufs4 knockout (Ndufs4 KO) mouse is a mitochondrial complex 1-deficient model that leads to RGC loss and rapid vision loss and allows for streamlined testing of potential therapeutics. Preceding RGC loss in the Ndufs4 KO is the loss of starburst amacrine cells, which may be an important target in the mechanism of complex 1-deficient vision loss. Papaverine and zolpidem were recently shown to be protective of bioenergetic loss in cell models of optic neuropathy. Treatment of Ndufs4 KO mice with papaverine, zolpidem, and rapamycin-suppressed inflammation, prevented cell death, and protected from vision loss. Thus, in the Ndufs4 KO mouse model of mitochondrial optic neuropathy, papaverine and zolpidem provided significant protection from multiple pathophysiological features, and as approved drugs in wide human use could be considered for the novel indication of human optic neuropathy. PMID- 29040552 TI - Commentary: Leonard Darwin: politician, eugenist and protector of Darwin heritage. PMID- 29040551 TI - Cohort Profile: Stratifying Resilience and Depression Longitudinally (STRADL): a questionnaire follow-up of Generation Scotland: Scottish Family Health Study (GS:SFHS). PMID- 29040553 TI - Longitudinal depression or anxiety in mothers and offspring asthma: a Swedish population-based study. AB - Background: Previous research has found that maternal stress during pregnancy increases the risk of offspring asthma. However, whether this association is consistent with a causal interpretation has never been tested. The objective is to determine whether there is a critical exposure period for maternal depression or anxiety on offspring asthma or whether cumulative exposure is most important, and to investigate evidence of confounding. Methods: The study population included all children born in Sweden from July 2006 to December 2009 (n = 360 526). Information about childhood asthma, maternal depression or anxiety (diagnosis or medication) and covariates was obtained from the Swedish national health registers. The associations between exposure periods (pre-conception, pregnancy, postnatal or current) and childhood asthma were estimated using structured life course approach hypothesis testing. Paternal and cousin analyses were used to test for evidence of confounding from shared genes and environment. Results: For childhood asthma, cumulative exposure best described the effect of exposure to maternal depression or anxiety up to a maximum of any two exposure periods [adjusted odds ratio 1.44, 95% confidence interval (CI) 1.38, 1.52]. The hypotheses of a critical period were not supported. The paternal and cousin analyses indicated minimal influence from familial confounding. Conclusions: These findings support an association between cumulative exposure to maternal depression or anxiety and asthma development in offspring. This association is unique for maternal depression or anxiety and not due to familial confounding. The clinical implication is that effective psychological management of women with chronic distress may reduce offspring asthma risk. PMID- 29040554 TI - Frailty syndrome: an emerging clinical problem in the everyday management of clinical arrhythmias. The results of the European Heart Rhythm Association survey. AB - The age of patients presenting with complex arrhythmias is increasing. Frailty is a multifaceted syndrome characterized by an increased vulnerability to stressors and a decreased ability to maintain homeostasis. The prevalence of frailty is associated with age. The aims of this European Heart Rhythm Association (EHRA) EP Wire survey were to evaluate the proportion of patients with frailty and its influence on the clinical management of arrhythmias. A total of 41 centres members of the EHRA Electrophysiology Research Network-in 14 European countries completed the web-based questionnaire in June 2017. Patients over 70 years represented 53% of the total treated population, with the proportion of frail elderly individuals reaching approximately 10%; 91.7% of the responding centres reported treating frail subjects in the previous year. The respondents usually recognized frailty based on the presence of problems of mobility, nutrition, and cognition and inappropriate loss of body weight and muscle mass. Renal failure, dementia, disability, atrial fibrillation, heart failure, falls, and cancer were reported to characterize the elderly frail individuals. Atrial fibrillation was considered the prevalent arrhythmia associated with frailty by 72% of the responding centres, and for stroke prevention, non-vitamin K antagonist oral anticoagulants were preferred. None of the respondents considered withholding the prevention of thrombo-embolic events in subjects with a history of falls. All participants have agreed that cardiac resynchronization therapy exerts positive effects including improvement in cardiac, physical, and cognitive performance and quality of life. The majority of respondents preferred an Arrhythmia Team to manage this special population of elderly patients, and many would like having a simple tool to quickly assess the presence of frailty to guide their decisions, particularly on the use of complex cardiac implantable electrical devices (CIEDs). In conclusion, the complex clinical condition in frail patients presenting with arrhythmias warrants an integrated multidisciplinary approach both for the management of rhythm disturbances and for the decision on using CIEDs. PMID- 29040555 TI - The effectiveness of varenicline versus nicotine replacement therapy on long-term smoking cessation in primary care: a prospective cohort study of electronic medical records. AB - Background: There is limited evidence about the effectiveness of varenicline and nicotine replacement therapy (NRT) for long-term smoking cessation in primary care, or whether the treatment effectiveness differs by socioeconomic position (SEP). Therefore, we estimated the long-term effectiveness of varenicline versus NRT (> 2 years) on smoking cessation, and investigated whether effectiveness differs by SEP. Methods: This is a prospective cohort study of electronic medical records from 654 general practices in England, within the Clinical Practice Research Datalink, using three different analytical methods: multivariable logistic regression, propensity score matching and instrumental variable analyses. Exposure was prescription of varenicline versus NRT, and the primary outcome was smoking cessation at 2 years' follow-up; outcome was also assessed at 3, 6, and 9 months, and at 1 and 4 years after exposure. SEP was defined using the Index of Multiple Deprivation. Results: At 2 years, 28.8% (N = 20 362/70 610) of participants prescribed varenicline and 24.3% (N = 36 268/149 526) of those prescribed NRT quit; adjusted odds ratio was 1.26 [95% confidence interval (CI): 1.23 to 1.29], P < 0.0001. The association persisted for up to 4 years and was consistent across all analyses. We found little evidence that the effectiveness of varenicline differed greatly by SEP. However, patients from areas of higher deprivation were less likely to be prescribed varenicline; adjusted odds ratio was 0.91 (95% CI: 0.90 to 0.92), P < 0.0001. Conclusions: Patients prescribed varenicline were more likely to be abstinent up to 4 years after first prescription than those prescribed NRT. In combination with other evidence, the results from this study may be used to update clinical guidelines on the use of varenicline for smoking cessation. PMID- 29040556 TI - Cohort Profile: The PERU MIGRANT Study-A prospective cohort study of rural dwellers, urban dwellers and rural-to-urban migrants in Peru. PMID- 29040557 TI - Divergence and convergence in cause-specific premature adult mortality in Mexico and US Mexican Hispanics from 1995 to 2015: analyses of 4.9 million individual deaths. AB - Background: Mexicans and US Mexican Hispanics share modifiable determinants of premature mortality. We compared trends in mortality at ages 30-69 in Mexico and among US Mexican Hispanics from 1995 to 2015. Methods: We examined nationally representative statistics on 4.2 million Mexican and 0.7 million US deaths to examine cause-specific mortality. We used lung cancer indexed methods to estimate smoking-attributable deaths stratified by high and lower burden Mexican states. Results: In 1995-99, Mexican men had about 30% higher relative risk of death from all causes than US Mexican Hispanic men, and this difference nearly doubled to 58% by 2010-15. The divergence between Mexican and US Mexican Hispanic women over this time period was less marked. Among US Mexican Hispanics, declines in the risk of smoking-attributable death constituted about 25-30% of the declines in the overall risk of death. However, among Mexican men the declines in the risk of smoking-attributable deaths were offset by increases in causes of death not due to smoking. Homicide rates (mostly from guns) rose among men in Mexico from 2005 to 2010, but not among Mexican women or US Mexican Hispanic men or women. The probability at 30-69 years of death from cardiac disease diverged significantly between Mexicans and US Mexican Hispanics, reaching 10% and 5% for men, and 7% and 2% for women, respectively. Conclusions: Large differences in premature mortality between otherwise genetically and culturally similar groups arise from a few modifiable factors, most notably smoking, untreated diabetes and homicide. PMID- 29040559 TI - Cohort Profile: The Early Language in Victoria Study (ELVS). PMID- 29040558 TI - Constitutively-active FGFR3 disrupts primary cilium length and IFT20 trafficking in various chondrocyte models of achondroplasia. AB - Fibroblast growth factor receptor 3 (FGFR3) gain-of-function mutations cause dwarfisms, including achondroplasia (ACH) and thanatophoric dysplasia (TD). The constitutive activation of FGFR3 disrupts the normal process of skeletal growth. Bone-growth anomalies have been identified in skeletal ciliopathies, in which primary cilia (PC) function is disrupted. In human ACH and TD, the impact of FGFR3 mutations on PC in growth plate cartilage remains unknown. Here we showed that in chondrocytes from human (ACH, TD) and mouse Fgfr3Y367C/+ cartilage, the constitutively active FGFR3 perturbed PC length and the sorting and trafficking of intraflagellar transport (IFT) 20 to the PC. We demonstrated that inhibiting FGFR3 with FGFR inhibitor, PD173074, rescued both PC length and IFT20 trafficking. We also studied the impact of rapamycin, an inhibitor of mammalian target of rapamycin (mTOR) pathway. Interestingly, mTOR inhibition also rescued PC length and IFT20 trafficking. Together, we provide evidence that the growth plate defects ascribed to FGFR3-related dwarfisms are potentially due to loss of PC function, and these dwarfisms may represent a novel type of skeletal disorders with defective ciliogenesis. PMID- 29040560 TI - Cohort Profile: The Finnish Mobile Clinic Health Surveys FMC, FMCF and MFS. PMID- 29040561 TI - Prospective evaluation of a continuous infusion vancomycin dosing nomogram in critically ill patients undergoing continuous venovenous haemofiltration. AB - Objectives: The most optimal method of attaining therapeutic vancomycin concentrations during continuous venovenous haemofiltration (CVVH) remains unclear. Studies have shown continuous infusion vancomycin (CIV) achieves target concentrations more rapidly and consistently when compared with intermittent infusion. Positive correlations between CVVH intensity and vancomycin clearance (CLvanc) have been noted. This study is the first to evaluate a CIV regimen in patients undergoing CVVH that incorporates weight-based CVVH intensity (mL/kg/h) into the dosing nomogram. Methods: This was a prospective, observational study of patients undergoing CVVH and receiving CIV based on the nomogram. The primary outcome was achievement of a therapeutic vancomycin concentration (15-25 mg/L) at 24 h. Secondary outcomes included the achievement of therapeutic concentrations at 48 and 72 h. Results: The nomogram was analysed in 52 critically ill adults. Vancomycin concentrations were therapeutic in 43/52 patients (82.7%) at 24 h. Of the nine patients who were not therapeutic at 24 h, seven were supratherapeutic and two were subtherapeutic. The mean (SD) concentration was 20.1 (4.2) mg/L at 24 h, 20.7 (3.7) mg/L at 48 h and 21.9 (3.5) mg/L at 72 h. Patients with CVVH intensity >20 mL/kg/h experienced higher CLvanc at 24 h compared with patients with CVVH intensity <20 mL/kg/h (3.1 versus 2.6 L/h; P = 0.013). Conclusions: By incorporating CVVH intensity into the CIV dosing nomogram, the majority of patients achieved therapeutic concentrations at 24 h and maintained them within range at 48 and 72 h. Additional studies are required to validate this nomogram before widespread implementation may be considered. PMID- 29040562 TI - Collider scope: when selection bias can substantially influence observed associations. AB - Large-scale cross-sectional and cohort studies have transformed our understanding of the genetic and environmental determinants of health outcomes. However, the representativeness of these samples may be limited-either through selection into studies, or by attrition from studies over time. Here we explore the potential impact of this selection bias on results obtained from these studies, from the perspective that this amounts to conditioning on a collider (i.e. a form of collider bias). Whereas it is acknowledged that selection bias will have a strong effect on representativeness and prevalence estimates, it is often assumed that it should not have a strong impact on estimates of associations. We argue that because selection can induce collider bias (which occurs when two variables independently influence a third variable, and that third variable is conditioned upon), selection can lead to substantially biased estimates of associations. In particular, selection related to phenotypes can bias associations with genetic variants associated with those phenotypes. In simulations, we show that even modest influences on selection into, or attrition from, a study can generate biased and potentially misleading estimates of both phenotypic and genotypic associations. Our results highlight the value of knowing which population your study sample is representative of. If the factors influencing selection and attrition are known, they can be adjusted for. For example, having DNA available on most participants in a birth cohort study offers the possibility of investigating the extent to which polygenic scores predict subsequent participation, which in turn would enable sensitivity analyses of the extent to which bias might distort estimates. PMID- 29040563 TI - Ten years of CAZypedia: a living encyclopedia of carbohydrate-active enzymes. AB - CAZypedia was initiated in 2007 to create a comprehensive, living encyclopedia of the carbohydrate-active enzymes (CAZymes) and associated carbohydrate-binding modules involved in the synthesis, modification and degradation of complex carbohydrates. CAZypedia is closely connected with the actively curated CAZy database, which provides a sequence-based foundation for the biochemical, mechanistic and structural characterization of these diverse proteins. Now celebrating its 10th anniversary online, CAZypedia is a successful example of dynamic, community-driven and expert-based biocuration. CAZypedia is an open access resource available at URL http://www.cazypedia.org. PMID- 29040564 TI - N-cadherin identifies human endometrial epithelial progenitor cells by in vitro stem cell assays. AB - STUDY QUESTION: Is there a specific surface marker that identifies human endometrial epithelial progenitor cells with adult stem cell activity using in vitro assays? SUMMARY ANSWER: N-cadherin isolates clonogenic, self-renewing human endometrial epithelial progenitor cells with high proliferative potential that differentiate into cytokeratin+ gland-like structures in vitro and identifies their location in some cells of gland profiles predominantly in basalis endometrium adjacent to the myometrium. WHAT IS KNOWN ALREADY: Human endometrium contains a small population of clonogenic, self-renewing epithelial cells with high proliferative potential that differentiate into large gland-like structures, but their identity and location is unknown. Stage-specific embryonic antigen-1 (SSEA-1) distinguishes the epithelium of basalis from functionalis and is a marker of human post-menopausal (Post-M) endometrial epithelium. STUDY DESIGN, SIZE, DURATION: Prospective observational study of endometrial epithelial cells obtained from hysterectomy samples taken from 50 pre-menopausal (Pre-M) and 24 Post-M women, of which 4 were from women who had taken daily estradiol valerate 2 mg/day for 8 weeks prior. PARTICIPANTS/MATERIALS, SETTING, METHODS: Gene profiling was used to identify differentially expressed surface markers between fresh EpCAM (Epithelial Cell Adhesion Molecule)-magnetic bead-selected basalis like epithelial cells from Post-M endometrium compared with predominantly functionalis epithelial cells from Pre-M endometrium and validated by qRT-PCR. In vitro clonogenicity and self-renewal assays were used to assess the stem/progenitor cell properties of magnetic bead-sorted N-cadherin+ and N cadherin- epithelial cells. The cellular identity, location and phenotype of N cadherin+ cells was assessed by dual colour immunofluorescence and confocal microscopy for cytokeratin, proliferative status (Ki-67), ERalpha, SSEA-1, SOX9 and epithelial mesenchymal transition (EMT) markers on full thickness human endometrium. MAIN RESULTS AND THE ROLE OF CHANCE: CDH2 (N-cadherin gene) was one of 11 surface molecules highly expressed in Post-M compared to Pre-M endometrial epithelial cells. N-cadherin+ cells comprise a median 16.7% (n = 8) and 20.2% (n = 5) of Pre-M endometrial epithelial cells by flow cytometry and magnetic bead sorting, respectively. N-cadherin+ epithelial cells from Pre-M endometrium were more clonogenic than N-cadherin- cells (n = 12, P = 0.003), underwent more population doublings (n = 7), showed greater capacity for serial cloning (n = 7) and differentiated into cytokeratin+ gland-like organoids. N-cadherin immunolocalised to the lateral and apical membrane of epithelial cells in the bases of glands in the basalis of Pre-M endometrium and Post-M gland profiles, co expressing cytokeratin, ERalpha but not SSEA-1 or SOX9, which localized on gland profiles proximal to N-cadherin+ cells. N-cadherin+ cells were quiescent (Ki-67-) in the basalis and in Post-M endometrial glands and co-localized with EMT markers vimentin and E-cadherin. LARGE SCALE DATA: The raw and processed data files from the gene microarray have been deposited in the National Center for Biotechnology Information Gene Expression Omnibus data set with accession number GSE35221. LIMITATIONS, REASONS FOR CAUTION: This is a descriptive study in human endometrium only using in vitro stem cell assays. The differential ability of N cadherin+ and N-cadherin-cells to generate endometrial glands in vivo was not determined. A small number of uterine tissues analysed contained adenomyosis for which N-cadherin has been implicated in epithelial-EMT. WIDER IMPLICATIONS OF THE FINDINGS: A new marker enriching for human endometrial epithelial progenitor cells identifies a different and potentially more primitive cell population than SSEA-1, suggesting a potential hierarchy of epithelial differentiation in the basalis. Using N-cadherin as a marker, the molecular and cellular characteristics of epithelial progenitor cells and their role in endometrial proliferative disorders including endometriosis, adenomyosis and thin dysfunctional endometrium can be investigated. STUDY FUNDING/COMPETING INTEREST(S): This research was supported by Cancer Council Victoria grant 491079 (C.E.G.) and Australian National Health and Medical Research Council grants 1021127 (C.E.G.), 1085435 (C.E.G., J.A.D.), 145780 and 288713 (C.N.S.), RD Wright Career Development Award 465121 (C.E.G.), Senior Research Fellowship 1042298 (C.E.G.), the Victorian Government's Operational Infrastructure Support and an Australian Postgraduate Award (HPTN), and China Council Scholarship (L.X.). The authors have nothing to declare. PMID- 29040565 TI - Refugees, migrants, and displaced populations: the United Nations New York Declaration and the WHO International Health Regulations. AB - The World Health Assembly approved the International Health Regulations (IHR) committing countries to strengthen their capacity to address public health emergencies of international concern. A mechanism to assess a country's capacity, the Joint External Evaluation (JEE), is a means to assist countries to assess their health system preparedness. The assessment teams include public health and veterinary experts, but include those with specialized knowledge about refugee, immigrant, and internally displaced persons situations. Such experts have not been regularly included in the JEE assessment teams previously. Particularly where there are significant existing or prospective populations of this cohort, the author asserts they need to be. PMID- 29040566 TI - Overlapping network meta-analyses on the same topic: survey of published studies. AB - Background: To assess how common it is for a published network meta-analysis (NMA) to have other published overlapping NMAs, and to evaluate these overlaps. Methods: A total of 88 NMAs of randomized controlled trials evaluating the comparative effectiveness of health interventions were randomly selected. For each of these, we searched for NMAs on the same topic. A random sample of 40 pairs (an index NMA and one of its overlapping NMAs) was selected to assess the overlap in terms of nodes, treatments and references. The topic with the largest number of overlapping NMAs was described in depth. Results: In all, 68 of the 88 index NMAs had at least one overlapping NMA: 77% [95% confidence interval (CI), 69-86%]. We identified 515 pairs of overlapping NMAs. Among the 40 randomly selected pairs, 73% (95% CI, 58-88%) of nodes, 79% (95% CI, 72-86%) of treatments and 48% (95% CI, 37-59%) of references included in the index NMAs were also found in the respective overlapping NMAs. Efficacy of biologics in rheumatoid arthritis had the largest number of overlapping NMAs, with 28 NMAs published between 2003 and 2014. Differences in selection and definition of nodes of treatments resulted in different network geometries. There were also differences in both the direction and the statistical significance of effects. Conclusions: Published NMAs exhibit extensive overlap and potential redundancy. Erratic retrieval of eligible trials, and lack of consensus on the range of interventions to be considered and how they might be merged or split in different nodes, may cause confusion. PMID- 29040567 TI - Effects of Insect Growth Regulators on Bagrada hilaris (Hemiptera: Pentatomidae). AB - Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae) is a serious pest of cruciferous crops in the central coast of California. Management of B. hilaris primarily involves the use of broad spectrum insecticides, such as pyrethroids and neonicotinoids, when the pest invades a crop field. Insect growth regulators (IGRs) are known for their efficacy on nymphal stages of B. hilaris, but little is known about their transovarial effects. Thus, the major objective of this study was to determine the transovarial effects of IGRs such as novaluron, diflubenzuron, and azadirachtin, when adults are exposed to direct topical spraying and dried residues. In addition, a direct topical spray of IGRs on older instars (fourth and fifth instars) was examined at 1-, 3-, and 7-d post treatment. The number of young instars (first and second instars) and adults was recorded up to ~31 d after exposure. In the topical spray assays, the number of young instars was significantly lower for novaluron, diflubenzuron, and azadirachtin than for the nontreated control. The number of young instars that emerged after novaluron treatment was low (0-11%). In the assays with dried residues, the number of young instars that developed was significantly lower for novaluron treatment than for the other IGRs and the nontreated control. There was no significant difference among diflubenzuron, azadirachtin, and nontreated control treatments in the development of young instars. In the assays with a topical spray of IGRs on older instars, significantly more nymphs died at 3 and 7 d after exposure. The IGRs had no clear impact on adults. PMID- 29040568 TI - U-47700: A Not So New Opioid. AB - U-47700 was developed by the Upjohn Co. in the 1970s as part of their search for a selective MU-opioid agonist with similar potency as morphine. U-47700 has re emerged recently in the illicit drug market and is easily and cheaply obtained via the internet as well as on the street, many times falsely sold as another drug. Several fatalities from U-47700 have been reported in scientific literature, often in combination with other intoxicants. This case report describes the first death in south-central Kansas resulting solely from U-47700 intoxication: a 26-year-old white male found dead in his bedroom with apparent drug paraphernalia. Autopsy findings were consistent with opioid overdose, but toxicological examination, utilizing immunoassay and instrumental techniques, was negative for opioids. U-47700 was detected in a comprehensive alkaloid screen by GC/MS and GC-NPD, and quantitation was performed using GC-NPD on a variety of specimens to provide a full tissue distribution. Quantitation of U-47700 in this individual revealed the following: heart blood 0.26 mg/L, femoral blood 0.40 mg/L, vitreous fluid 0.09 mg/L, brain 0.38 mg/kg, liver 0.28 mg/kg and urine 4.6 mg/L. PMID- 29040569 TI - Antiretroviral therapy use during pregnancy and adverse birth outcomes in South African women. AB - Background: Studies of antiretroviral therapy (ART) use during pregnancy in HIV infected women have suggested that ART exposure may be associated with adverse birth outcomes. However, there are few data from sub-Saharan Africa where HIV is most common, and few studies involving the World Health Organization's (WHO's) recommended first-line regimens. Methods: We enrolled consecutive HIV-infected pregnant women and a comparator cohort of uninfected women at a primary-level antenatal care facility in Cape Town, South Africa. Gestational assessment combined clinical history, examination and ultrasonography; outcomes included preterm (PTD), low birthweight (LBW) and small for gestational age (SGA) deliveries. In analysis we compared birth outcomes between HIV-infected and uninfected women, and HIV-infected women who initiated ART before vs during pregnancy. Results: In 1554 women (mean age 29 years) with live singleton births at time of analysis, 82% were HIV-infected, 92% of whom received a first-line regimen of tenofovir, emtricitabine and efavirenz. Overall, higher levels of PTD [22% vs 13%; odds ratio (OR) 1.94, 95% confidence interval (CI): 1.34, 2.82] and LBW (14% vs 9%; OR 1.62, 95% CI: 1.05, 2.29) were observed in HIV-infected vs uninfected women, although SGA deliveries were similar (9% vs 11%; OR 1.06, 95% CI: 0.71, 1.61). Adjusting for demographic characteristics and HIV disease measures, HIV-infected (vs HIV-uninfected) women had persistently increased odds of PTD [adjusted odds ratio (AOR) 2.03; CI 1.33, 3.10]; associations with LBW were attenuated (AOR 1.47; CI 0.90, 2.40). Among all HIV-infected women, there appeared to be no association between the timing of ART initiation (before or during pregnancy) and adverse birth outcomes. Conclusions: These findings suggest that current WHO-recommended ART regimens appear relatively safe in pregnancy, although more data are required to understand the aetiology of preterm delivery in HIV-infected women using ART. PMID- 29040570 TI - Cumulative live birth rates following miscarriage in an initial complete cycle of IVF: a retrospective cohort study of 112 549 women. AB - STUDY QUESTION: In women undergoing IVF/ICSI who miscarry in their first complete cycle, what is the chance of a live birth in subsequent complete cycles, and how does this compare with those whose first complete cycle ends with live birth or without a pregnancy? SUMMARY ANSWER: After two further complete cycles of IVF/ICSI, women who had miscarried or had a live birth in their first complete cycle had a higher chance of live birth (40.9 and 49.0%, respectively) than those who had no pregnancies (30.1%). WHAT IS KNOWN ALREADY: Cumulative live birth rates (CLBRs) after one or more complete cycles of IVF have been reported previously, as have some of the risk factors associated with miscarriage, both in general populations and in those undergoing IVF. Chances of cumulative live birth after a number of complete IVF cycles involving replacement of fresh followed by frozen embryos after an initial miscarriage in a population undergoing IVF treatment have not been reported previously. STUDY DESIGN, SIZE, DURATION: National population-based cohort study of 112 549 women who started their first IVF treatment between 1999 and 2008. PARTICIPANTS/MATERIALS, SETTING, METHODS: Data from the UK Human Fertilisation and Embryology Authority (HFEA) register on IVF/ICSI treatments, using autologous gametes were analysed. CLBRs were estimated in women who (i) had miscarriage (and no live birth), (ii) at least one live birth or (iii) no pregnancy in their first complete cycle of IVF/ICSI (including fresh and frozen embryo transfers following a single oocyte retrieval episode). A multivariable analysis was performed to assess the effect of first complete cycle outcome on subsequent CLBRs after adjusting for confounding factors such as female age, duration of infertility and cause of infertility. MAIN RESULTS AND THE ROLE OF CHANCE: In their first complete cycle, 9321 (8.3%) women had at least one miscarriage (and no live birth); 33 152 (29.5%) had at least one live birth and 70 076 (62.3%) had no pregnancies. After two further complete cycles, conservative CLBRs (which assume that women who discontinued treatment subsequently never had a live birth) were 40.9, 49.0 and 30.1%, while optimal CLBRs (which assume that women who discontinue have the same chance of live birth as those treated) were 49.5, 57.9 and 38.4% in the miscarriage, live birth and no pregnancy groups respectively. Odds of cumulative live birth for women who miscarried in their first complete cycle were 42% higher than those who had no pregnancy [odds ratio (95% CI) = 1.42 (1.34, 1.50)], and twice as high for live birth versus no pregnancy [2.04 (1.89, 2.20)]. Negative predictors for live birth in all women included tubal infertility [0.88 (0.82, 0.94)] and increasing age [18-40 years = 0.94 (0.94, 0.95); >40 years = 0.63 (0.59, 0.66) per year]. LIMITATIONS AND REASON FOR CAUTION: CLBRs could not be estimated for treatments occurring after September 2008 due to potentially incomplete data following regulatory changes regarding consent for data use in research. Additionally, covariates not included in the HFEA database (including BMI, smoking, previous history of miscarriage and gestational age at miscarriage) could not be adjusted for in our analysis. WIDER IMPLICATIONS OF THE FINDINGS: Miscarriage following IVF can be devastating for couples who are uncertain about their ultimate prognosis. Our findings will provide reassurance to these couples as they consider their options for continuing treatment. STUDY FUNDING/COMPETING INTEREST(S): N.J.C. received an Aberdeen Summer Research Scholarship funded by the Institute of Applied Health Sciences (University of Aberdeen), through the Aberdeen Clinical Academic Training Scheme. This work was supported by a Chief Scientist Office Postdoctoral Training Fellowship in Health Services Research and Health of the Public Research (Ref PDF/12/06). The views expressed here are those of the authors and not necessarily those of the Chief Scientist Office or the University of Aberdeen. The funders did not have any role in the study design; in the collection, analysis and interpretation of data; in the writing of the report; nor in the decision to submit the paper for publication. None of the authors has any conflicts of interest to declare. PMID- 29040571 TI - Patient-centered early pregnancy care: a systematic review of quantitative and qualitative studies on the perspectives of women and their partners. AB - BACKGROUND: Early pregnancy complications, defined as miscarriage, recurrent miscarriage or ectopic pregnancy, affect the physical and psychological well being of intended parents. Research in this field so far has focused mainly on improving accuracy of diagnostic tests and safety and effectiveness of therapeutic management. An overview of aspects of care valued by women and/or their partners is missing. OBJECTIVE AND RATIONALE: This systematic review aims to provide an overview of aspects of care valued by women and/or their partners faced with early pregnancy complications and to identify potential targets for improvement in early pregnancy healthcare. SEARCH METHODS: We searched five electronic databases for empirical quantitative or qualitative studies on patients' perspectives of early pregnancy care in July 2017. We first identified aspects of early pregnancy care valued by women and/or their partners based on qualitative and quantitative data and organized these aspects of care according to the eight dimensions of patient-centered care. Second, we extracted the assessment of service quality from women and/or their partners on each of these aspects of care based on quantitative data. Third, we combined the findings on patients' values with the findings of service quality assessment to identify potential targets for improvement in five groups according to how likely these targets are to require improvement. OUTCOMES: The search yielded 6240 publications, of which 27 studies were eligible for inclusion in this review. All included studies focused on miscarriage or recurrent miscarriage care. We identified 24 valued aspects of care, which all covered the eight dimensions of patient-centered care. The most frequently reported valued aspect was 'being treated as an individual person experiencing a significant life event rather than a common condition'. Assessment of service quality from women and/or their partners was available for 13 of the 24 identified aspects of care. Quantitative studies all documented service quality as problematic for these 13 aspects of care. We thus identified 13 potential targets for improvement in the patient centeredness of miscarriage and recurrent miscarriage care of which none were very likely, four were likely, six were unlikely and three were very unlikely, to require improvement. The four likely potential targets for improvement were 'Understandable information provision about the etiology of pregnancy', 'Staff discussing patients' distress', 'Informing patients on pregnancy loss in the presence of a friend or partner' and 'Staff performing follow-up phone calls to support their patients after a miscarriage'. WIDER IMPLICATIONS: It is important for clinicians to realize that women and their partners undergoing a miscarriage experience a significant live event and appreciate an individual approach. Future qualitative studies are needed to explore the identified potential targets for improvement of (recurrent) miscarriage care and to explore patients' perspectives in women suspected and treated for ectopic pregnancy. PMID- 29040573 TI - How much atopy is attributable to common childhood environmental exposures? A population-based birth cohort study followed to adulthood. AB - Background: The rising prevalence of atopic diseases implies a strong influence of environmental determinants. Epidemiological studies have identified several early life exposures that appear to influence the risk of developing atopic sensitization, but the combined influence of these exposures is unknown. We sought to estimate the proportion of atopy that could be attributed to common childhood exposures associated with atopic sensitization in adolescence and young adulthood. Methods: Atopic sensitization was measured by skin-prick tests for common aeroallergens in a population-based New Zealand birth cohort at ages 13 and 32 years. The independent effects of previously identified risk and protective factors for atopic sensitization were assessed using multiple logistic regression. Population attributable fractions were calculated for atopic sensitization in childhood and adulthood. Results: Tobacco smoke exposure, dog and cat ownership, nail-biting and thumb-sucking, attending pre-school day care, and household crowding were associated with a lower risk of atopic sensitization whereas breastfeeding was associated with a higher risk. Population attributable fractions for combined effects of these environmental factors suggest that they may account for 58% of atopic sensitization at age 13 and 49% at age 32 years. Conclusions: A substantial proportion of atopic sensitization appears to be attributable to common childhood environmental and lifestyle factors, and the influence of these exposures persists into adulthood. The absolute risks attributable to these exposures will be different in other cohorts and we cannot assume that these associations are necessarily causal. Nevertheless, the findings suggest that identifiable childhood environmental factors contribute substantially to atopic sensitization. PMID- 29040574 TI - Integrating children's physical activity enjoyment into public health dialogue (United States). AB - Keywords: children, physical activity, public health. PMID- 29040575 TI - Role of tenofovir alafenamide in the jungle of antiretroviral prescription. PMID- 29040572 TI - Biallelic mutations in the ferredoxin reductase gene cause novel mitochondriopathy with optic atrophy. AB - Iron-sulfur (Fe-S) clusters are ubiquitous cofactors essential to various cellular processes, including mitochondrial respiration, DNA repair, and iron homeostasis. A steadily increasing number of disorders are being associated with disrupted biogenesis of Fe-S clusters. Here, we conducted whole-exome sequencing of patients with optic atrophy and other neurological signs of mitochondriopathy and identified 17 individuals from 13 unrelated families with recessive mutations in FDXR, encoding the mitochondrial membrane-associated flavoprotein ferrodoxin reductase required for electron transport from NADPH to cytochrome P450. In vitro enzymatic assays in patient fibroblast cells showed deficient ferredoxin NADP reductase activity and mitochondrial dysfunction evidenced by low oxygen consumption rates (OCRs), complex activities, ATP production and increased reactive oxygen species (ROS). Such defects were rescued by overexpression of wild-type FDXR. Moreover, we found that mice carrying a spontaneous mutation allelic to the most common mutation found in patients displayed progressive gait abnormalities and vision loss, in addition to biochemical defects consistent with the major clinical features of the disease. Taken together, these data provide the first demonstration that germline, hypomorphic mutations in FDXR cause a novel mitochondriopathy and optic atrophy in humans. PMID- 29040576 TI - To Everything There Is a Season: Summer-to-Winter Food Webs and the Functional Traits of Keystone Species. AB - From a trophic perspective, a seasonal increase in air temperature and photoperiod propagates as bottom-up pulse of primary production by plants, secondary production by herbivores, and tertiary production by carnivores. However, food web seasonality reflects not only abiotic variation in temperature and photoperiod, but also the composition of the biotic community and their functional responses to this variation. Some plants and animals-here referred to as seasonal specialists-decouple from food webs in winter through migration or various forms of metabolic arrest (e.g., senescence, diapause, and hibernation), whereas some plants and resident animals-here referred to as seasonal generalists remain present and trophically coupled in winter. The co-occurrence of species with divergent responses to winter introduces seasonal variation in interaction strengths, resulting in summer-to-winter differences in trophic organization. Autumn cooling and shortening day length arrests primary productivity and cues seasonal herbivores to decouple, leaving generalist carnivores to concentrate their predation on the few generalist herbivores that remain resident, active, and vulnerable to predation in winter, which themselves feed on the few generalist plant structures available in winter. Thus, what was a bottom-up pulse, spread among many species in summer, including highly productive seasonal specialists, reverses into strong top-down regulation in winter that is top heavy, and concentrated among a small number of generalist herbivores and their winter foods. Intermediate-sized, generalist herbivores that remain active and vulnerable to predation in winter are likely to be keystone species in seasonal food webs because they provide the essential ecosystem service of turning summer primary productivity into winter food for carnivores. Empirical examination of terrestrial mammals and their seasonal trophic status in the boreal forest and across an arctic-to-tropics seasonality gradient indicates seasonal specialization is more common among herbivores, small body sizes, and in regions with intermediate seasonality, than among carnivores, large body size, and regions where summers are very short or very long. Better understanding of food webs in seasonal environments, including their vulnerability and resilience to climate change, requires a multi-season perspective. PMID- 29040577 TI - Metabolomics of postprandial plasma alterations: a comprehensive Japanese study. AB - While endogenous metabolites in plasma can be used as clinical biomarkers, intra day variations should be carefully considered. The postprandial effect is a large contributing factor and is dependent on regional features (e.g. meals, ethnicity). Thus, for clinical application, regional-specific postprandial baseline data are required. In this study, 10 healthy Japanese volunteers of different ages and genders ate the same meal, and blood samples were taken 30 min before and 1 h after the meal challenge. Plasma metabolomics was conducted and metabolites that significantly changed with the meal challenge were extracted. Principal component analysis of the data from 1101 metabolites showed a postprandial shift with a common direction despite marked individual variation. Pathway enrichment analysis demonstrated known postprandial effects, including the energy utilization shift from lipolysis to glycolysis and the elevation of bile acids for lipid absorption. Other postprandial metabolic changes were observed, including decreases in orexigenic signals and increases of food-derived components. The postprandial alteration accumulated in this study will be used for the understanding of Japanese clinical metabolomics for health promotion in Japan. PMID- 29040578 TI - Systemic Inflammation Induced by microRNAs: Endometriosis-Derived Alterations in Circulating microRNA 125b-5p and Let-7b-5p Regulate Macrophage Cytokine Production. AB - Context: Endometriosis is characterized by aberrant inflammation. We previously reported increased levels of microRNA (miRNA) 125b-5p and decreased levels of miRNA Let-7b-5p in serum of patients with endometriosis. Objective: Determine the regulatory function of miRNAs 125b-5p and Let-7b-5p on production of proinflammatory cytokines in endometriosis. Design: Case-control study. Setting: University hospital. Patients: Women with (20) and without (26) endometriosis; human U937 macrophage cell line. Intervention: Sera were collected from surgically diagnosed patients and differentiated U937 cells that were transfected with miRNAs 125b-5p and Let-7b-5p mimics and inhibitor. Main Outcome Measures: Enzyme-linked immunosorbent assay for tumor necrosis factor-alpha (TNF-alpha), interleukin (IL)-6, IL-8, and IL-1beta levels and quantitative real-time polymerase chain reaction for expression of miRNAs 125b-5p and Let-7b-5p in sera of patients with and without endometriosis. Transfected macrophages were evaluated for expression of inflammatory cytokines, intracellular production, and secretion of these cytokines. Results: We noted substantial elevation of TNF alpha, IL-1beta, and IL-6, marked upregulation of miRNA 125b, and considerable downregulation of Let-7b in sera of patients with endometriosis vs control. There was a positive correlation between miRNA 125b levels and TNF-alpha, IL-1beta, and IL-6 and a negative correlation between miRNA Let-7b levels and TNF-alpha in sera of patients with endometriosis. Transfection experiments showed a noteworthy upregulation of TNF-alpha, IL-1beta, IL-6, and IL-8 in macrophages transfected with miRNA 125b mimic or Let-7b inhibitor. The secreted cytokine protein levels and intracellular imaging studies closely correlate with the messenger RNA changes. Conclusions: Endometriosis-derived miRNAs regulate macrophage cytokine production that contributes to inflammation associated with this condition. PMID- 29040579 TI - Cultural determinants influence assisted reproduction usage in Europe more than economic and demographic factors. AB - STUDY QUESTION: To what extent do financial, demographic and cultural determinants explain the vast cross-national differences in ART treatments in Europe? SUMMARY ANSWER: The normative cultural acceptance of ART is a major driver of ART treatments in Europe, above and beyond differences in country wealth, demographic aspects and religious composition. WHAT IS KNOWN ALREADY: There are vast differences in the number of ART treatments across European countries, which are to some extent related to country affluence, regulation, and insurance coverage and costs. The role and impact of cultural and normative factors has not been explored in a larger cross-national comparison. STUDY DESIGN, SIZE, DURATION: A descriptive and comparative cross-national analysis of ART treatment prevalence in over 30 European countries in 2010, with the outcome defined as the total number of ART cycles per million women of reproductive age (15-44 years). Data is drawn from multiple sources (ICMART, US Census Bureau Library, World Bank, Barro-Lee Educational Attainment Dataset, IFFS Surveillance reports, European Values Study and World Religion Database). PARTICIPANTS/MATERIALS, SETTING, METHODS: Our sample includes data from 35 European countries, where we describe the associations between demographic and cultural factors and the prevalence of ART treatments. Bivariate correlation and ordinary least squares multiple regression analysis serves to establish the relationships between predictor variables and the number of ART treatments per million women aged 15-44 years in a country. MAIN RESULTS AND THE ROLE OF CHANCE: A one-percent increase in national GDP is associated with 382 (95% CI: 177-587) additional ART procedures per million women of reproductive age, yet this effect is reduced to 99 (-92 to 290) treatments once cultural values and demographic factors are accounted for. In our fully adjusted model, normative cultural values measuring the acceptability of ART are the strongest predictor of ART usage, with a one-point increase of average approval in a country associated with 276 (167 385) additional ART treatments per million women of reproductive age. LIMITATIONS, REASONS FOR CAUTION: Findings are based on a cross-sectional, cross national analysis, making formal tests of causality impossible and prohibiting inferences to the individual level. WIDER IMPLICATIONS OF THE FINDINGS: Results indicate that reproductive health policy should openly acknowledge the importance of cultural norms in informally shaping and regulating the wider availability of ART treatment. STUDY FUNDING/COMPETING INTEREST(S): Funding for this project was provided by the European Union's Seventh Framework Program (FP7 2007-2013) (No. 320116 Families and Societies), European Research Council for the SOCIOGENOME Consolidator Grant (ERC-2013-CoG-615603) and the Wellcome Trust Institutional Strategic Support Fund (all to M.C.M.). The authors have no conflicts of interest to declare. TRIAL REGISTRATION NUMBER: N/A. PMID- 29040581 TI - Effect of school eye health promotion on children's eye health literacy in Vietnam. AB - Health promotion intervention in schools is a useful strategy to improve students' health awareness. The purpose of this study was to assess the effect of eye health promotion interventions on eye health literacy in school children in Vietnam. A piloted questionnaire was administered to 300 children from five secondary schools in Ba Ria-Vung Tau, Vietnam at baseline and re-administered after the eye health promotion interventions. McNemar chi-square and logistic regression were used for statistical analysis. A total of 300 children aged 12-15 years (mean, 13.3 +/- 1.3 years; 60% female) participated in the baseline survey. The participation rate in the post-health promotion survey was 94.7%. After the health promotion interventions, number of children who had correct eye health knowledge increased by 10-20% (60-75% to 70-95%), more children reported having had an eye examination (63.3% to 84.7%; p < 0.001) and more reported wearing spectacles (36.1% to 43.4%; p = 0.04). Children in urban schools were twice as likely to have improved knowledge of vision loss compared with children in rural schools (odds ratio, 2.1-4.1; p = 0.01 to p < 0.001). Children from rural schools had significantly higher odds of visiting doctor after the eye problems worsened (odds ratio, 4.5; p < 0.001). These results imply that eye health promotion interventions significantly improve eye health knowledge, attitudes and practices of school children. Additionally, participation of parents and teachers as change agents may further improve children's health literacy. PMID- 29040580 TI - Cohort Profile: The Mother-Child Cohort in Crete, Greece (Rhea Study). PMID- 29040582 TI - CDC73-Related Disorders: Clinical Manifestations and Case Detection in Primary Hyperparathyroidism. AB - Context: Heterozygous pathogenic germline variants in CDC73 predispose to the development of primary hyperparathyroidism (pHPT) and, less frequently, ossifying fibroma of the jaw and renal and uterine tumors. Clinical information on CDC73 related disorders has so far been limited to small case series. Objective: To assess the clinical manifestations and penetrance in CDC73-related disorders and to improve case detection in pHPT. Design: Nationwide retrospective Dutch cohort study. Setting: Tertiary referral center. Patients: We studied 89 patients with pHPT referred for germline CDC73 analysis and 43 subsequently tested relatives who proved to be mutation carriers. Investigation: Germline CDC73 mutation analysis. Mean Outcome: CDC73 mutation detection yield, referral rate, and CDC73 related disease penetrance. Results: Pathogenic germline CDC73 variants were identified in 11 of the 89 referred pHPT patients (12.4%), with (suspected) hyperparathyroidism-jaw tumor (HPT-JT) syndrome (n = 3), familial isolated pHPT (n = 5), apparently sporadic parathyroid carcinoma (n = 2), and apparently sporadic parathyroid adenoma (n = 1). The estimated penetrance of CDC73-related disorders was 65% at age 50 years (95% confidence interval, 48% to 82%) in 43 nonindex mutation carriers. Conclusions: Germline CDC73 analysis is recommended in individuals with (suspected) HPT-JT syndrome, familial isolated pHPT, atypical or malignant parathyroid histology, and young individuals with pHPT. These criteria would increase germline CDC73 mutation detection, enabling optimal clinical management of pHPT as well as genetic counseling and surveillance for family members at risk for developing CDC73-related disorders. PMID- 29040583 TI - Taste receptor polymorphisms and male infertility. AB - STUDY QUESTION: Are polymorphisms of taste receptor genes associated with male infertility? SUMMARY ANSWER: This study has showed the associations between three single nucleotide polymorphisms (SNPs) in taste receptors genes (TASR) and male infertility. WHAT IS KNOWN ALREADY: Recent studies showed the expression of taste receptors in the testis and in spermatozoa, suggesting their possible role in infertility. The vast genetic variability in taste genes results in a large degree of diversity in various human phenotypes. STUDY DESIGN, SIZE, DURATION: In this study, we genotyped 19 SNPs in 12 taste related genes in a total of 494 Caucasian male patients undergoing semen evaluation at the Centre of Couple Sterility of the Siena University Hospital. Consecutive patients were enrolled during infertility investigations from October 2014 to February 2016. PARTICIPANTS/MATERIALS, SETTING, METHODS: Median age of the patients was 36 years (18-58) and 141 were smokers. Genotyping was performed using the allele-specific PCR. The statistical analysis was carried out using generalized linear model (GLM) to explore the association between age, smoking, the genetic polymorphisms and sperm parameters. MAIN RESULTS AND THE ROLE OF CHANCE: We observed that the homozygous carriers of the (G) allele of the TAS2R14-rs3741843 polymorphism showed a decreased sperm progressive motility compared to heterozygotes and (A) homozygotes (P = 0.003). Moreover, the homozygous carriers of the (T) allele of the TAS2R3-rs11763979 SNP showed fewer normal acrosome compared with the heterozygous and the homozygous carriers of the (G) allele (P = 0.002). Multiple comparisons correction was applied and the Bonferroni-corrected critical P-value was = 0.003. LIMITATIONS, REASONS FOR CAUTION: The analysis is restricted to SNPs within genes and to men of Caucasian ancestry. WIDER IMPLICATIONS OF THE FINDINGS: In silico analyses strongly point towards a functional effect of the two SNPs: TAS2R14-rs3741843 regulates TAS2R43 expression, a gene that is involved in cilia motility and therefore could influences sperm mobility; the (T) allele of TAS2R3-rs11763979 increases the expression of the WEE2 antisense RNA one gene (WEE2-AS1). According to Genotype-Tissue Expression (GTEx) project the WEE2 gene is expressed in the testes where presumably it has the role of down regulating meiotic cell division. It is plausible to hypothesize that the WEE2-AS1 increased expression may down regulate WEE2 which in turn can alter the natural timing of sperm maturation increasing the number of abnormal sperm cells. STUDY FUNDING/COMPETING INTEREST(S): None. PMID- 29040584 TI - Strategies to Advance Drug Discovery in Rare Monogenic Intellectual Disability Syndromes. AB - Some intellectual disability syndromes are caused by a mutation in a single gene and have been the focus of therapeutic intervention attempts, such as Fragile X and Rett Syndrome, albeit with limited success. The rate at which new drugs are discovered and tested in humans for intellectual disability is progressing at a relatively slow pace. This is particularly true for rare diseases where so few patients make high-quality clinical trials challenging. We discuss how new advances in human stem cell reprogramming and gene editing can facilitate preclinical study design and we propose new workflows for how the preclinical to clinical trajectory might proceed given the small number of subjects available in rare monogenic intellectual disability syndromes. PMID- 29040585 TI - Emergence of mcr-1 and carbapenemase genes in hospital sewage water in Beijing, China. AB - Objectives: This study identified and characterized mcr-1-positive Enterobacteriaceae (MCRPE) and carbapenemase-producing Enterobacteriaceae (CPE) in hospital sewage water. Methods: Influent and effluent sewage samples were collected from five tertiary hospitals in Beijing in December 2016. Samples were screened for MCRPE and CPE using antibiotic selection media. Results were confirmed by PCR amplification of beta-lactamase and colistin resistance (mcr-1 and mcr-2) genes and by sequencing. Antimicrobial susceptibility testing, MLST, conjugation and plasmid typing and S1-nuclease-PFGE/Southern blotting were performed for all MCRPE and CPE isolates. Results: Nine MCRPE and 12 CPE isolates were obtained. All mcr-1-positive isolates (n = 9) were Escherichia coli and belonged to eight different STs. The blaKPC-2-positive Enterobacteriaceae included Klebsiella pneumoniae (n = 4), Enterobacter cloacae (n = 4) and Citrobacter freundii (n = 1) isolates. Two C. freundii isolates and one E. cloacae isolate harboured the blaNDM-1 gene. MLST analysis revealed distinct genetic relatedness among all ST11 K. pneumoniae but not among any other carbapenemase-producing isolates. Conjugation and plasmid typing confirmed that three MCRPE isolates harboured mcr-1 on the self-transmissible IncX4 plasmid and the blaNDM-1 gene on the IncX3 plasmid. The sizes of the plasmids harbouring mcr 1, blaNDM-1 and blaKPC-2 were ~33 to ~240, ~40 to ~75 and ~30 to ~90 kb, respectively. Conclusions: To the best of our knowledge, this is the first report of mcr-1-positive E. coli and blaNDM-1-carrying E. cloacae and C. freundii in hospital sewage water. These findings, especially the diversity of MCRPE and K. pneumoniae ST11 that harbour the blaKPC-2 gene, suggest that monitoring and management of hospital sewage water should be enhanced. PMID- 29040587 TI - Does low to moderate environmental exposure to noise and air pollution influence preterm delivery in medium-sized cities? AB - Background: Preterm birth (PB) is an important predictor of childhood morbidity and educational performance. Beyond the known risk factors, environmental factors, such as air pollution and noise, have been implicated in PB. In urban areas, these pollutants coexist. Very few studies have examined the effects of multi-exposure on the pregnancy duration. The objective of this study was to analyse the relationship between PB and environmental chronic multi-exposure to noise and air pollution in medium-sized cities. Methods: A case-control study was conducted among women living in the city of Besancon (121 671 inhabitants) or in the urban unit of Dijon (243 936 inhabitants) and who delivered in a university hospital between 2005 and 2009. Only singleton pregnancies without associated pathologies were considered. Four controls were matched to each case in terms of the mother's age and delivery location. Residential noise and nitrogen dioxide (NO2) exposures were calculated at the mother's address. Conditional logistic regression models were applied, and sensitivity analyses were performed. Results: This study included 302 cases and 1204 controls. The correlation between noise and NO2 indices ranged from 0.41 to 0.59. No significant differences were found in pollutant exposure levels between cases and controls. The adjusted odds ratios ranged between 0.96 and 1.08. Sensitivity analysis conducted using different temporal and spatial exposure windows demonstrated the same results. Conclusions: The results are in favour of a lack of connection between preterm delivery and multi-exposure to noise and air pollution in medium-sized cities for pregnant women without underlying disease. PMID- 29040586 TI - Plasma Nervonic Acid Is a Potential Biomarker for Major Depressive Disorder: A Pilot Study. AB - Background: Diagnostic biomarkers of major depressive disorder, bipolar disorder, and schizophrenia are urgently needed, because none are currently available. Methods: We performed a comprehensive metabolome analysis of plasma samples from drug-free patients with major depressive disorder (n=9), bipolar disorder (n=6), schizophrenia (n=17), and matched healthy controls (n=19) (cohort 1) using liquid chromatography time-of-flight mass spectrometry. A significant effect of diagnosis was found for 2 metabolites: nervonic acid and cortisone, with nervonic acid being the most significantly altered. The reproducibility of the results and effects of psychotropic medication on nervonic acid were verified in cohort 2, an independent sample set of medicated patients [major depressive disorder (n=45), bipolar disorder (n=71), schizophrenia (n=115)], and controls (n=90) using gas chromatography time-of-flight mass spectrometry. Results: The increased levels of nervonic acid in patients with major depressive disorder compared with controls and patients with bipolar disorder in cohort 1 were replicated in the independent sample set (cohort 2). In cohort 2, plasma nervonic acid levels were also increased in the patients with major depressive disorder compared with the patients with schizophrenia. In cohort 2, nervonic acid levels were increased in the depressive state in patients with major depressive disorder compared with the levels in the remission state in patients with major depressive disorder and the depressive state in patients with bipolar disorder. Conclusion: These results suggested that plasma nervonic acid is a good candidate biomarker for the depressive state of major depressive disorder. PMID- 29040588 TI - Glyphosate Resistance and EPSPS Gene Duplication: Convergent Evolution in Multiple Plant Species. AB - One of the increasingly widespread mechanisms of resistance to the herbicide glyphosate is copy number variation (CNV) of the 5-enolpyruvylshikimate-3 phosphate synthase (EPSPS) gene. EPSPS gene duplication has been reported in 8 weed species, ranging from 3 to 5 extra copies to more than 150 extra copies. In the case of Palmer amaranth (Amaranthus palmeri), a section of >300 kb containing EPSPS and many other genes has been replicated and inserted at new loci throughout the genome, resulting in significant increase in total genome size. The replicated sequence contains several classes of mobile genetic elements including helitrons, raising the intriguing possibility of extra-chromosomal replication of the EPSPS-containing sequence. In kochia (Kochia scoparia), from 3 to more than 10 extra EPSPS copies are arranged as a tandem gene duplication at one locus. In the remaining 6 weed species that exhibit EPSPS gene duplication, little is known about the underlying mechanisms of gene duplication or their entire sequence. There is mounting evidence that adaptive gene amplification is an important mode of evolution in the face of intense human-mediated selection pressure. The convergent evolution of CNVs for glyphosate resistance in weeds, through at least 2 different mechanisms, may be indicative of a more general importance for this mechanism of adaptation in plants. CNVs warrant further investigation across plant functional genomics for adaptation to biotic and abiotic stresses, particularly for adaptive evolution on rapid time scales. PMID- 29040589 TI - Corifollitropin alfa followed by highly purified HMG versus recombinant FSH in young poor ovarian responders: a multicentre randomized controlled clinical trial. AB - STUDY QUESTION: Does administration of corifollitropin alfa followed by highly purified (hp) HMG result in higher ongoing pregnancy rates compared with daily recombinant FSH (rFSH) in young poor responders? SUMMARY ANSWER: Corifollitropin alfa followed by hp-HMG does not increase ongoing pregnancy rates compared with rFSH in young poor responders, although more supernumerary cryopreserved embryos were obtained with corifollitropin alfa and hp-HMG. WHAT IS KNOWN ALREADY: Poor ovarian response remains one of the main therapeutic challenges in women undergoing ovarian stimulation, given that very low live birth rates of 6% have been reported in this particular group of infertile patients. Nevertheless, concerns have been raised that a degree of heterogeneity remains, as the prognostic effect of individual factors is still unclear, particularly for the young poor responder group. The rationale for conducting the current randomized trial was based on the results of a previous pilot study demonstrating promising results with the administration of hp-HMG following corifollitropin alpha in women younger than 40 years of age, fulfilling the 'Bologna' criteria. STUDY DESIGN, SIZE, DURATION: A multicenter, phase III, superiority, randomized trial was conducted using a parallel two-arm design. The study included 152 patients younger than 40 years old and fulfilling the 'Bologna' criteria for poor ovarian response, from one tertiary referral centre in Europe and one tertiary referral centre in Asia. Enrolment was performed from March 2013 to May 2016. PARTICIPANTS/MATERIALS, SETTING, METHODS: Eligible patients were randomized to either administration of 150 MUg corifollitropin alfa followed by 300 IU hp-HMG (Group A) or to 300 IU of daily recombinant FSH (Group B) in a fixed GnRH antagonist protocol. The randomization sequence was created using a computer generated randomization list stratified by centre, using 1:1 allocation. The primary outcome was ongoing pregnancy rate (defined as the presence of an intrauterine gestational sac with an embryonic pole demonstrating cardiac activity at 9-10 weeks of gestation). Secondary outcomes included embryo cryopreservation rates, clinical and biochemical pregnancy rates and number of oocytes retrieved. MAIN RESULTS AND THE ROLE OF CHANCE: Overall, 152 poor ovarian responders defined by the 'Bologna' criteria were included in the study. Using an intention-to treat analysis, the ongoing pregnancy rates did not differ significantly between Group A 11/77 (14.3%) and Group B 11/70 (15.7%), absolute difference: -0.4 (-11.5 to 10.8), OR = 0.9 (0.4-2.4). Biochemical and clinical pregnancy rates, live birth rates and the number of oocytes retrieved were also comparable between the two groups. Nevertheless, more patients in the corifollitropin alfa group had cryopreserved embryos compared to the rFSH group [22 (28.6%) versus 10 (14.3%), OR = 2.4 (1.01-5.5)]. Incidentally, Asian patients had significantly lower cancellation rates compared to European poor responders [2/64 (3.1%) versus 17/83 (20.4%), OR = 0.12 (0.03-0.5)]. This discrepancy could be explained by the fact that Asian women were better prognosis patients than European patients, with significantly lower FSH [9.8 (5.3) versus 11.5 (5.4), P = 0.017] and significantly higher AMH [1.1 (0.9) versus 0.4 (0.3), P-value <0.001] levels. LIMITATIONS, REASONS FOR CAUTION: Ongoing pregnancy rates close to 14% for both treatment groups differ significantly from the hypothesized primary outcome rates used in the power calculation. Therefore, our randomized trial might have been underpowered to detect smaller differences. The use of multiple secondary outcomes and multiple comparisons could have increased a Type 1 error. Finally, although the chance of selection biases remains low given the nature of the infertile population, the open-label design could have been a limitation. WIDER IMPLICATIONS OF THE FINDINGS: Poor ovarian response represents a challenge and although a specific protocol may have increased the number of cryopreserved embryos, no difference was observed in ongoing pregnancy rates. Our study, being one of the largest RCTs in 'Bologna' criteria poor responders, highlights that baseline characteristics may play a crucial role in clinical prognosis of this population. Given that ovarian stimulation using novel protocols does not seem to significantly increase pregnancy rates even in young women, we suggest that future clinical research should focus on increasing the number of recruitable follicles and on oocyte quality rather than evaluating different stimulation protocols. STUDY FUNDING/COMPETING INTERESTS: No external funding was used for this study. P.D., N.L.V., N.A.V.H., A.V., M.T.H., M.C., A.T.L. and A.V.V. have no conflict of interest to report. C.B. has received unrestricted research grants from MSD and Ferring as well as honoraria for lectures from Abbott, MSD, Merck and Ferring. P.H has received unrestricted research grants from MSD, Merck and Ferring as well as honoraria for lectures from Merck, MSD and IBSA. H.T. has received unrestricted research grants from MSD, Merck, Ferring, Cook, Roche Diagnostics, Besins International and Goodlife as well as consultation fees for research project in female infertility from Merck Finox, Abbott and ObsEva. N.P.P. has received unrestricted research grants from MSD, Ferring, Roche Diagnostics and Besins International as well as honoraria for lectures from MSD, Merck and Ferring. TRIAL REGISTRATION NUMBER: The EUDRACT number of the trial was 2013-000583-29 and the study was registered at clinicaltrials.gov (NCT01816321). TRIAL REGISTRATION DATE: 19 February 2013. DATE OF FIRST PATIENT ENROLMENT: 28 February 2013. PMID- 29040590 TI - Constructing the crystal ball: how to get reliable prognostic information for the management of subfertile couples. AB - Couples in whom the results of an initial fertility workup fail to identify the presence of any obvious barriers to conception are diagnosed with unexplained subfertility. Couples who have tried to conceive for a relatively short time have a good chance of natural conception and thus may not benefit from immediate access to ART. As fertility decreases over time, the main dilemma that clinicians and couples face is when to abandon an expectant approach in favour of active treatment. Several prognostic or predictive models have been used to try to discriminate between couples with high and low chances of conception but have been unable to compare individualized chances of conception associated with ART relative to chances of natural conception at various time points. These models are also unable to recalculate the chances of pregnancy at subsequent time points in those who return after a period of unsuccessful expectant management. In this paper, we discuss currently available models. We conclude that in order to provide accurate, individualized and dynamic fertility prognoses associated with and without treatment at different points in time, we need to develop, validate and update clinical prediction models which are fit for purpose. We suggest several steps to move the field forwards. PMID- 29040591 TI - Revised Distribution of Bactrocera tryoni in Eastern Australia and Effect on Possible Incursions of Mediterranean Fruit Fly: Development of Australia's Eastern Trading Block. AB - Bactrocera tryoni (Froggatt) (Diptera: Tephritidae), commonly called 'Queensland fruit fly' in Australia, and Mediterranean fruit fly (Ceratitis capitata Wiedemann) (Diptera: Tephritidae) are the two most economically important fruit fly in Australia with B. tryoni in the east and Mediterranean fruit fly in the west. The two species coexisted for several decades, but it is believed that B. tryoni displaced Mediterranean fruit fly. In southeastern Australia, this was deemed inadequate for export market access, and a large fruit fly free zone (fruit fly exclusion zone) was developed in 1996 where B. tryoni was eradicated by each state department in their portion of the zone. This zone caused an artificial restricted distribution of B. tryoni. When the fruit fly exclusion zone was withdrawn in Victoria and New South Wales in 2013, B. tryoni became endemic once again in this area and the national distribution of B. tryoni changed. For export markets, B. tryoni is now deemed endemic to all eastern Australian states, except for the Greater Sunraysia Pest-Free Area. All regulatory controls have been removed between eastern states, except for some small zones, subject to domestic market access requirements. The eastern Australian states now form a B. tryoni endemic trading group or block. All Australian states and territories maintain legislation to regulate the movement of potentially infested host fruit into their states. In particular, eastern states remain active and regulate the entry of commodities possibly infested with Mediterranean fruit fly. The combination of regulatory controls limits the chances of Mediterranean fruit fly entering eastern states, and if it did, Mediterranean fruit fly is unlikely to establish in the opposition to a well established B. tryoni population. PMID- 29040593 TI - Oral Exposure to Paraquat Triggers Earlier Expression of Phosphorylated alpha Synuclein in the Enteric Nervous System of A53T Mutant Human alpha-Synuclein Transgenic Mice. AB - The misfolded alpha-synuclein protein, phosphorylated at serine 129 (pSer129 alpha-syn), is the hallmark of Parkinson disease (PD). Detected also in the enteric nervous system (ENS), it supports the recent theory that PD could start in the gut, rather than the brain. In a previous study, using a transgenic mouse model of human synucleinopathies expressing the A53T mutant alpha-synuclein (TgM83), in which a neurodegenerative process associated with alpha-synuclein occurs spontaneously in the brain, we have shown earlier onset of pSer129 alpha syn in the ENS. Here, we used this model to study the impact of paraquat (PQ) a neurotoxic herbicide incriminated in PD in agricultural workers) on the enteric pSer129 alpha-syn expression in young mice. Orally delivered in the drinking water at 10 mg/kg/day for 6-8 weeks, the impact of PQ was measured in a time dependent manner on weight, locomotor abilities, pSer129 alpha-syn, and glial fibrillary acidic protein (GFAP) expression levels in the ENS. Remarkably, pSer129 alpha-syn was detected in ENS earlier under PQ oral exposure and enteric GFAP expression was also increased. These findings bring additional support to the theory that neurotoxic agents such as PQ initiate idiopathic PD after oral delivery. PMID- 29040592 TI - The Association Between IGF-I and IGFBP-3 and Incident Diabetes in an Older Population of Men and Women in the Cardiovascular Health Study. AB - Context: Insulin-like growth factor-I (IGF-I) has structural and functional similarities to insulin and may play a role in glucose homeostasis, along with insulin-like growth factor binding protein-3 (IGFBP-3), which binds the majority of circulating IGF-I. Objective: To assess whether IGF-I and IGFBP-3 are associated with a higher risk of incident diabetes in older adults. Design: Participants in the Cardiovascular Health Study (n = 3133), a cohort of adults aged >=65 years, were observed for 16 years (n = 3133) for the development of incident diabetes. Statistical models were fit separately for men and women because of interactions with sex (P interaction: IGF-I, 0.02; IGFBP-3, 0.009) and were adjusted for relevant covariates. Setting: General community. Participants: Older adults who were nondiabetic at baseline and who did not develop diabetes within the first year of follow-up. Interventions: Not applicable. Main Outcome Measure: Incident diabetes as measured by fasting plasma glucose (FPG) >=126 mg/dL, non-FPG >=200 mg/dL, use of pharmacological treatment of diabetes, or existence of two or more inpatient or three or more outpatient or (at least one inpatient and at least one outpatient) Centers for Medicare & Medicaid Services claims with the diagnostic International Classification of Diseases, Ninth Revision, Clinical Modification code of 250.xx. Results: In women, higher IGFBP-3 (hazard ratio tertile 3 vs tertile 1 = 2.30; 95% confidence interval, 1.55 to 3.40; P trend < 0.0001) was significantly associated with incident diabetes. Total IGF-I was not significantly associated with incident diabetes. In men, neither IGF-I nor IGFBP-3 was significantly associated with incident diabetes. Conclusions: We confirmed a previously reported association between circulating IGFBP-3 and diabetes risk in the older adult population, establishing that this association is present among women but could not be shown to be associated in men. PMID- 29040594 TI - Association between exposure to second-hand smoke and telomere length: cross sectional study of 1303 non-smokers. AB - Background: Both active smoking and second-hand smoke (SHS) are important risk factors for many age-related diseases. Active smoking is associated with shortened telomere length. However, whether SHS accelerates telomere attrition with age is uncertain. The aim of this study was to examine the association between SHS exposure and shortening by age of leukocyte telomere length among adult non-smokers. Methods: We undertook a cross-sectional study of the association between self-reported levels of SHS exposure and telomere length shortening per annum on a subgroup of participants from the Scottish Family Health Study. Inclusion was restricted to non-smokers aged >= 18 years, who had provided self-reported overall usual SHS exposure (total hours per week) and blood samples for telomere analysis. Linear regression models were used to compare the ratio of telomere repeat copy number to single copy gene number (T/S)by age according to SHS exposure. Results: Of the 1303 eligible participants, 779 (59.8%) reported no SHS exposure, 495 (38.0%) low exposure (1 19 h per week) and 29 (2.2%) high exposure (>=20 h per week). In the univariate linear regression analyses, relative T/S ratio declined with increasing age in all exposure groups. Telomere length decreased more rapidly with increasing age among those with high exposure to SHS [adjusted coefficient -0.019, 95% confidence interval (CI) -0.031- -0.007) when compared with both those with no exposure to SHS (adjusted coefficient -0.006, 95% CI -0.008- -0.004) (high vs no SHS: P = 0.010) and those with low exposure to SHS (adjusted coefficient -0.005, 95% CI -0.007- -0.003) (high vs low SHS: P = 0.005). Conclusions: Our findings suggest that high SHS exposure may accelerate normal biological ageing, and support efforts to protect the public from SHS exposure. Further studies on relevant mechanisms should be conducted. PMID- 29040595 TI - A comparison of levofloxacin and oral third-generation cephalosporins as antibacterial prophylaxis in acute leukaemia patients during chemotherapy-induced neutropenia. AB - Background: There is demonstrated benefit with fluoroquinolones as infection prophylaxis in neutropenic patients; however, side effects, drug interactions and increasing resistance necessitate investigation of alternative therapies. Objectives: To compare the incidence of febrile neutropenia in high-risk patients with haematological malignancy receiving a fluoroquinolone with those receiving an oral third-generation cephalosporin (OTGC) as antibacterial prophylaxis during chemotherapy-induced neutropenia. Methods: A retrospective, matched, single centre study comparing clinical and microbiological outcomes in acute leukaemia patients receiving fluoroquinolones versus OTGCs as antibacterial prophylaxis after chemotherapy. Results: A total of 120 patients (levofloxacin n = 80, OTGC n = 40) were included and matched. The 30 day incidence of febrile neutropenia was 89.7% (95% CI = 82.4-93.9). The rates of febrile neutropenia were similar between antimicrobials (OTGC versus levofloxacin HR = 0.90, 95% CI = 0.54-1.52, P = 0.70). The most frequent site of infection was the bloodstream (line related) (n = 24, 62%) and the majority (n = 28, 72%) of infections were caused by Gram positive organisms. Groups were similar in terms of site of infection (P = 0.91) and morphology of recovered microorganisms (P = 0.74). There were significantly more cultures positive for Enterobacter spp. in the OTGC group (P = 0.043). Three patients died during follow-up (from first dose up to 30 days after the last dose) (30 day survival = 99.2%, 95% CI = 97.5-100), with only two of the reported deaths attributable to infection. Conclusions: These findings demonstrate comparable rates of febrile neutropenia and culture positivity with an increase in cultures positive for Enterobacter spp. when OTGCs are compared with levofloxacin for antibacterial prophylaxis during chemotherapy-induced neutropenia. Further prospective, randomized investigation is warranted. PMID- 29040596 TI - High-fidelity phenotyping: richness and freedom from bias. AB - Electronic health record phenotyping is the use of raw electronic health record data to assert characterizations about patients. Researchers have been doing it since the beginning of biomedical informatics, under different names. Phenotyping will benefit from an increasing focus on fidelity, both in the sense of increasing richness, such as measured levels, degree or severity, timing, probability, or conceptual relationships, and in the sense of reducing bias. Research agendas should shift from merely improving binary assignment to studying and improving richer representations. The field is actively researching new temporal directions and abstract representations, including deep learning. The field would benefit from research in nonlinear dynamics, in combining mechanistic models with empirical data, including data assimilation, and in topology. The health care process produces substantial bias, and studying that bias explicitly rather than treating it as merely another source of noise would facilitate addressing it. PMID- 29040597 TI - Mendelian randomization: a novel approach for the prediction of adverse drug events and drug repurposing opportunities. AB - Identification of unintended drug effects, specifically drug repurposing opportunities and adverse drug events, maximizes the benefit of a drug and protects the health of patients. However, current observational research methods are subject to several biases. These include confounding by indication, reverse causality and missing data. We propose that Mendelian randomization (MR) offers a novel approach for the prediction of unintended drug effects. In particular, we advocate the synthesis of evidence from this method and other approaches, in the spirit of triangulation, to improve causal inferences concerning drug effects. MR addresses some of the limitations associated with the existing methods in this field. Furthermore, it can be applied either before or after approval of the drug, and could therefore prevent the potentially harmful exposure of patients in clinical trials and beyond. The potential of MR as a pharmacovigilance and drug repurposing tool is yet to be realized, and could both help prevent adverse drug events and identify novel indications for existing drugs in the future. PMID- 29040599 TI - Measles Virus Is Unforgiving Where Immunity Gaps Exist. PMID- 29040598 TI - Effect of Metformin on Vascular Function in Children With Type 1 Diabetes: A 12 Month Randomized Controlled Trial. AB - Context: Children with type 1 diabetes have vascular dysfunction preceding atherosclerosis. Early interventions are needed to reduce cardiovascular disease. Objective: To evaluate the effect of metformin on vascular function in children with type 1 diabetes. Design: Twelve-month double-blind, randomized, placebo controlled trial. Setting: Tertiary pediatric diabetes clinic. Participants: Ninety children (8 to 18 years of age), >50th percentile body mass index (BMI), with type 1 diabetes. Intervention: Metformin (up to 1 g twice a day) or placebo. Main Outcome Measure: Vascular function measured by brachial artery ultrasound [flow-mediated dilatation/glyceryl trinitrate-mediated dilatation (GTN)]. Results: Ninety participants were enrolled [41 boys, 13.6 (2.5) years of age, 45 per group], 10 discontinued intervention, and 1 was lost to follow-up. On metformin, GTN improved, independent of glycosylated hemoglobin (HbA1c), by 3.3 percentage units [95% confidence interval (CI) 0.3, 6.3, P = 0.03] and insulin dose reduced by 0.2 U/kg/d (95% CI 0.1, 0.3, P = 0.001) during 12 months, with effects from 3 months. Metformin had a beneficial effect on HbA1c at 3 months (P = 0.001) and difference in adjusted HbA1c between groups during 12 months was 1.0%; 95% CI 0.4, 1.5 (10.9 mmol/mol; 95% CI 4.4, 16.4), P = 0.001. There were no effects on carotid/aortic intima media thickness, BMI, lipids, blood pressure, or other cardiovascular risk factors. Median (95% CI) adherence, evaluated by electronic monitoring, was 75.5% (65.7, 81.5), without group differences. More gastrointestinal side effects were reported on metformin (incidence rate ratio 1.65, 95% CI 1.08, 2.52, P = 0.02), with no difference in hypoglycemia or diabetic ketoacidosis. Conclusions: Metformin improved vascular smooth muscle function and HbA1c, and lowered insulin dose in type 1 diabetes children. These benefits and good safety profile warrant further consideration of its use. PMID- 29040600 TI - Robust inference in summary data Mendelian randomization via the zero modal pleiotropy assumption. AB - Background: Mendelian randomization (MR) is being increasingly used to strengthen causal inference in observational studies. Availability of summary data of genetic associations for a variety of phenotypes from large genome-wide association studies (GWAS) allows straightforward application of MR using summary data methods, typically in a two-sample design. In addition to the conventional inverse variance weighting (IVW) method, recently developed summary data MR methods, such as the MR-Egger and weighted median approaches, allow a relaxation of the instrumental variable assumptions. Methods: Here, a new method - the mode based estimate (MBE) - is proposed to obtain a single causal effect estimate from multiple genetic instruments. The MBE is consistent when the largest number of similar (identical in infinite samples) individual-instrument causal effect estimates comes from valid instruments, even if the majority of instruments are invalid. We evaluate the performance of the method in simulations designed to mimic the two-sample summary data setting, and demonstrate its use by investigating the causal effect of plasma lipid fractions and urate levels on coronary heart disease risk. Results: The MBE presented less bias and lower type I error rates than other methods under the null in many situations. Its power to detect a causal effect was smaller compared with the IVW and weighted median methods, but was larger than that of MR-Egger regression, with sample size requirements typically smaller than those available from GWAS consortia. Conclusions: The MBE relaxes the instrumental variable assumptions, and should be used in combination with other approaches in sensitivity analyses. PMID- 29040601 TI - Data Resource Profile: The UK Cystic Fibrosis Registry. PMID- 29040602 TI - Software Application Profile: PHESANT: a tool for performing automated phenome scans in UK Biobank. AB - Motivation: Epidemiological cohorts typically contain a diverse set of phenotypes such that automation of phenome scans is non-trivial, because they require highly heterogeneous models. For this reason, phenome scans have to date tended to use a smaller homogeneous set of phenotypes that can be analysed in a consistent fashion. We present PHESANT (PHEnome Scan ANalysis Tool), a software package for performing comprehensive phenome scans in UK Biobank. General features: PHESANT tests the association of a specified trait with all continuous, integer and categorical variables in UK Biobank, or a specified subset. PHESANT uses a novel rule-based algorithm to determine how to appropriately test each trait, then performs the analyses and produces plots and summary tables. Implementation: The PHESANT phenome scan is implemented in R. PHESANT includes a novel Javascript D3.js visualization and accompanying Java code that converts the phenome scan results to the required JavaScript Object Notation (JSON) format. Availability: PHESANT is available on GitHub at [https://github.com/MRCIEU/PHESANT]. Git tag v0.5 corresponds to the version presented here. PMID- 29040603 TI - Mitosis-specific acetylation tunes Ran effector binding for chromosome segregation. AB - Stable transmission of genetic information during cell division requires faithful mitotic spindle assembly and chromosome segregation. The Ran GTPase plays a key role in mitotic spindle assembly. However, how the generation of a chemical gradient of Ran-GTP at the spindle is coupled to mitotic post-translational modifications has never been characterized. Here, we solved the complex structure of Ran with the nucleotide release factor Mog1 and delineated a novel mitosis specific acetylation-regulated Ran-Mog1 interaction during chromosome segregation. Our structure-guided functional analyses revealed that Mog1 competes with RCC1 for Ran binding in a GTP/GDP-dependent manner. Biochemical characterization demonstrated that Mog1-bound Ran prevents RCC1 binding and subsequent GTP loading. Surprisingly, Ran is a bona fide substrate of TIP60, and the acetylation of Lys134 by TIP60 liberates Mog1 from Ran binding during mitosis. Importantly, this acetylation-elicited switch of Ran binding to RCC1 promotes high level of Ran-GTP, which is essential for chromosome alignment. These results establish a previously uncharacterized regulatory mechanism in which TIP60 provides a homeostatic control of Ran-GTP level by tuning Ran effector binding for chromosome segregation in mitosis. PMID- 29040605 TI - Negative-Assortative Mating in the White-Throated Sparrow. AB - Nonrandom mating based on phenotype has been observed in a number of organisms, but a very high proportion of these examples are of assortative mating. The strongest example of negative-assortative mating is for white-striped versus tan striped crown in the white-throated sparrow, where about 98% of the observed pairings (mated pairs or social pairs) are between mates with different phenotypes and the correlation between mating types is -0.964. Although nonrandom mating has been explored theoretically for decades, these models have generally not focused on specific well-documented examples. Here we have developed a model to investigate the dynamics and equilibrium of this iconic example. The observed pattern of mating appears to be the result of 96% negative-assortative mating and a 17% advantage of W (white) male * T (tan) female matings compared to the reciprocal T male * W female matings. The equilibrium heterozygosity given these values is 0.500, very close to the 0.501 observed in our large sample of pairings, and this heterozygosity has been maintained for the 29 years from 1988 to 2016. In addition, the equilibrium frequency of 2m inversion determining the white-striped phenotype has been maintained at a frequency very close to its equilibrium frequency of 0.25. Overall, this model demonstrates how evolutionary genetic models can be used to understand negative-assortative mating. PMID- 29040604 TI - Associations of Plasma Cytokine and Microbial Translocation Biomarkers With Immune Reconstitution Inflammatory Syndrome. AB - A nested case-cohort study was performed in participants of a clinical trial of first-line human immunodeficiency virus treatments to investigate plasma biomarkers of inflammation and microbial translocation for their association with immune reconstitution inflammatory syndrome (IRIS). Fifty-one of 1452 participants with baseline CD4 count <350 cells/MUL developed IRIS. Plasma from 51 IRIS cases, including 6 stratified by preenrollment CD4 count <=200 cells/MUL, were analyzed and compared to 94 non-IRIS controls. At baseline, CXCL10, lipopolysaccharide, soluble CD14, 16S ribosomal DNA, and interferon-alpha2 were associated with greater risk of IRIS. Systemic inflammation through persistent monocyte activation and microbial translocation appear to be important in IRIS pathogenesis. PMID- 29040606 TI - Pinopode score around the time of implantation is predictive of successful implantation following frozen embryo transfer in hormone replacement cycles. AB - STUDY QUESTION: Is pinopode measurement of any prognostic value? SUMMARY ANSWER: Pinopode expression was significantly associated with the occurrence of pregnancy after frozen embryo transfer. WHAT IS KNOWN ALREADY: Pinopodes are expressed in the endometrium during the implantation period. Pinopode measurement has been proposed as a marker of endometrial receptivity. STUDY DESIGN, SIZE, DURATION: A prospective cohort study was conducted at the Center of Reproductive Medicine, Sir Run Run Shaw Hospital, between 2014 and 2016, recruiting 172 women with infertility and undergoing frozen embryo transfer following IVF treatment. Among 172 participants, 46 women took part in the first study to quantify the daily changing pattern of pinopodes 3-7 days after the initiation of progesterone therapy in the hormone replacement cycles and the remaining 126 women with infertility participated in a study to examine the relationship between pinopode count and pregnancy outcome following frozen embryo transfer in hormone replacement cycles. PARTICIPANTS/MATERIALS, SETTING, METHODS: The mean age of participants was 29 years old. All participants received an artificial hormone replacement protocol capable of supporting successful implantation. Endometrial biopsies from 46 women were obtained 3, 4, 5, 6 and 7 days after the initiation of progesterone therapy (P + 3, n = 6; P + 4, n = 6; P + 5, n = 11; P + 6, n = 13; P + 7, n = 10, respectively). Another 126 endometrial biopsies were obtained precisely 6 days after the initiation of progesterone. Scanning electron microscopy was used to capture the pinopode images, followed by use of the image J program to quantify the count and subtype of the pinopodes. MAIN RESULTS AND THE ROLE OF CHANCE: We found that at least 60 microscopic fields were necessary to achieve a reproducible result. An intra-observer variability study showed good agreement between two measurements regarding the developing pinopode (DP) subtype (r = 0.95) and the fully developed pinopode (FDP) subtype (r = 0.86) but not for the regressing (RP) pinopode subtype (r = 0.39). The proportion of DP/total pinopodes (TP) declined rapidly form day P + 4 to a minimum on day P + 6. The percentage of FDP/TP increased rapidly from day P + 4 to reach a peak on day P + 6. On the other hand, the percentage of RP/TP reached a peak on day P + 7. Participants who conceived had a significantly (P = 0.011) higher percentage of FDP/TP on day P + 6 and significantly (P = 0.005) lower percentage of DP/TP on the same day compared with participants who did not become pregnant. Using a scoring system incorporating the percentages of DP and FDP, it was found that the pregnancy rate and the embryo implantation rate of women with a high pinopode score (82.3%; 63.0%) was significantly (P = 0.001; P = 0.046) higher than that of women with a low pinopode score (53.3%; 46.7%), respectively. There remains a possibility that the observations could have arisen due to chance. LIMITATIONS, REASONS FOR CAUTION: This study examined pinopode count and subtype in the HRT cycles, and it is uncertain whether the same observations apply to in natural cycles. WIDER IMPLICATIONS OF THE FNDINGS: Pinopodes have been questioned as a potential marker of endometrial receptivity for many years. Our results suggested that pinopode measurement may be of value in predicting pregnancy. STUDY FUNDING/COMPETING INTEREST(S): The study was supported by the grants from the general project of medicine and health in Zhejiang Province of China (2015KYA142; 2018KY106), the Key Research and Development Program of Zhejiang Province (2017C03022) and the National Natural Science Foundation of China (81701514).The funders had no role in the study design, data collection and analysis, decision to publish or preparation of the manuscript. We have no competing interests to declare. TRIAL REGISTRATION NUMBER: ISRCTN26300668. PMID- 29040607 TI - Data Resource Profile: Danish Heart Statistics. PMID- 29040608 TI - Risk factors for resistance and MDR in community urine isolates: population-level analysis using the NHS Scotland Infection Intelligence Platform. AB - Background: Urinary tract infections (UTIs) are common. Antibiotic treatment is usually empirical, with the risk of under-treatment of resistant infections. Objectives: To characterize risk factors for antibiotic-resistant community urine isolates using routine record-linked health data. Methods: Within the NHS Scotland Infection Intelligence Platform, national surveillance patient-level data on community urine isolates (January 2012-June 2015) were linked to hospital activity and community prescribing data. Associations between age, gender, comorbidity, care home residence, previous hospitalizations, antibiotic exposure and resistant (any antibiotic) or MDR (>=1 antibiotic from >=3 categories) urinary isolates were quantified using multivariable logistic regression. Results: Of 40984 isolates, 28% were susceptible, 45% were resistant and 27% were MDR. Exposure to >= 4 different antibiotics in the prior 6 months increased MDR risk (OR 6.81, 95% CI 5.73-8.11). MDR was associated with >=29 DDD cumulative exposure, in the prior 6 months, for any antibiotic (OR 6.54, 95% CI 5.88-7.27), nitrofurantoin (OR 8.56, 95% CI 6.56-11.18) and trimethoprim (OR 14.61, 95% CI 10.53-20.27). Associations persisted for 10-12 months for nitrofurantoin (OR 2.31, 95% CI 1.93-2.76) and trimethoprim (OR 1.81, 95% CI 1.57-2.09). Increasing age, comorbidity, previous hospitalization and care home residence were independently associated with MDR. For resistant isolates the factors were the same, but with weaker associations. Conclusions: To our knowledge, we have demonstrated, using national capability at scale, the risk of MDR in community urine isolates for the first time and quantified the cumulative and sustained impact of antibiotic exposure. These data will inform the development of decision support tools for UTI treatment. PMID- 29040609 TI - Improving patient safety and efficiency of medication reconciliation through the development and adoption of a computer-assisted tool with automated electronic integration of population-based community drug data: the RightRx project. AB - Background and Objective: Many countries require hospitals to implement medication reconciliation for accreditation, but the process is resource intensive, thus adherence is poor. We report on the impact of prepopulating and aligning community and hospital drug lists with data from population-based and hospital-based drug information systems to reduce workload and enhance adoption and use of an e-medication reconciliation application, RightRx. Methods: The prototype e-medical reconciliation web-based software was developed for a cluster randomized trial at the McGill University Health Centre. User-centered design and agile development processes were used to develop features intended to enhance adoption, safety, and efficiency. RightRx was implemented in medical and surgical wards, with support and training provided by unit champions and field staff. The time spent per professional using RightRx was measured, as well as the medication reconciliation completion rates in the intervention and control units during the first 20 months of the trial. Results: Users identified required modifications to the application, including the need for dose-based prescribing, the role of the discharge physician in prescribing community-based medication, and access to the rationale for medication decisions made during hospitalization. In the intervention units, both physicians and pharmacists were involved in discharge reconciliation, for 96.1% and 71.9% of patients, respectively. Medication reconciliation was completed for 80.7% (surgery) to 96.0% (medicine) of patients in the intervention units, and 0.7% (surgery) to 82.7% of patients in the control units. The odds of completing medication reconciliation were 9 times greater in the intervention compared to control units (odds ratio: 9.0, 95% confidence interval, 7.4-10.9, P < .0001) after adjusting for differences in patient characteristics. Conclusion: High rates of medication reconciliation completion were achieved with automated prepopulation and alignment of community and hospital medication lists. PMID- 29040611 TI - Association between pre-pregnancy overweight and obesity and children's neurocognitive development: a systematic review and meta-analysis of observational studies. AB - Background: Obesity and overweight during pregnancy have been negatively associated with fetal and offspring neurodevelopment. The aim of this systematic review and meta-analysis was to assess the effect of the relationship between pre pregnancy overweight and obesity with children's neurocognitive development. Methods: We systematically searched MEDLINE, EMBASE, the Cochrane Library and the Web of Science databases from their inception through February 2017 for follow-up studies comparing the relationship between pre-pregnancy weight status and children's cognition. The Mantel-Haenszel fixed-effects method was used to calculate pooled effect size (ES) values and their corresponding 95% confidence intervals (CIs) comparing children's neurocognitive development between pre pregnancy normal weight, as reference, with overweight and obesity categories. Results: Fifteen articles were included in the systematic review, and nine of them in the meta-analysis. The pooled ES values for overweight and obese mothers were -0.02 (95% CI: -0.05 to 0.02) and -0.06 (95% CI: -0.09 to -0.03), respectively. The pooled ES for the relationship between pre-gestational excess weight (overweight and obesity) and children's neurocognitive development was 0.04 (95% CI: -0.06 to -0.02). Conclusions: Pre-pregnancy obesity might have negative consequences on the neurocognitive development of offspring. PMID- 29040610 TI - The biological impact of blood pressure-associated genetic variants in the natriuretic peptide receptor C gene on human vascular smooth muscle. AB - Elevated blood pressure (BP) is a major global risk factor for cardiovascular disease. Genome-wide association studies have identified several genetic variants at the NPR3 locus associated with BP, but the functional impact of these variants remains to be determined. Here we confirmed, by a genome-wide association study within UK Biobank, the existence of two independent BP-related signals within NPR3 locus. Using human primary vascular smooth muscle cells (VSMCs) and endothelial cells (ECs) from different individuals, we found that the BP elevating alleles within one linkage disequilibrium block identified by the sentinel variant rs1173771 was associated with lower endogenous NPR3 mRNA and protein levels in VSMCs, together with reduced levels in open chromatin and nuclear protein binding. The BP-elevating alleles also increased VSMC proliferation, angiotensin II-induced calcium flux and cell contraction. However, an analogous genotype-dependent association was not observed in vascular ECs. Our study identifies novel, putative mechanisms for BP-associated variants at the NPR3 locus to elevate BP, further strengthening the case for targeting NPR-C as a therapeutic approach for hypertension and cardiovascular disease prevention. PMID- 29040612 TI - ER stress-induced aggresome trafficking of HtrA1 protects against proteotoxicity. PMID- 29040614 TI - Commentary: Multistage carcinogenesis and epidemiological studies of cancer. PMID- 29040613 TI - DNA Data Bank of Japan: 30th anniversary. AB - The DNA Data Bank of Japan (DDBJ) Center (http://www.ddbj.nig.ac.jp) has been providing public data services for 30 years since 1987. We are collecting nucleotide sequence data and associated biological information from researchers as a member of the International Nucleotide Sequence Database Collaboration (INSDC), in collaboration with the US National Center for Biotechnology Information and the European Bioinformatics Institute. The DDBJ Center also services the Japanese Genotype-phenotype Archive (JGA) with the National Bioscience Database Center to collect genotype and phenotype data of human individuals. Here, we outline our database activities for INSDC and JGA over the past year, and introduce submission, retrieval and analysis services running on our supercomputer system and their recent developments. Furthermore, we highlight our responses to the amended Japanese rules for the protection of personal information and the launch of the DDBJ Group Cloud service for sharing pre publication data among research groups. PMID- 29040616 TI - Description of Evandromyia piperiformis sp. nov. (Diptera: Psychodidae). AB - Brazil presents great sand fly species diversity, with new species constantly being described, as new areas are surveyed to monitor sand flies. In captures undertaken in Porto Velho, Rondonia state-Brazil, a new species, Evandromyia (Aldamyia) piperiformissp. nov. (Godoy, Cunha & Galati 2017), was found and is here described. Both sexes of this new species may be distinguished from those of the Aldamyia subgenus through morphometric and morphological characters. Further, we present an identification key for the subgenus Aldamyia. PMID- 29040615 TI - Exploring Cascading Effects of Multimodal Communication Skills in Infants With Hearing Loss. AB - Infants and toddlers with hearing loss (HL) are at risk for developing communicative delays that can have a substantial lasting effect. Understanding child characteristics that may be targeted in early intervention is essential to maximizing communicative outcomes in children with HL. Among the most malleable predictors of communication skills include maternal responsivity, gestures, and vocalizations. The purpose of this study was to examine the relationship among maternal responsivity, prelinguistic communication skills and expressive vocabulary in children with HL. Based upon the results we propose a theoretical cascading model of communicative outcomes for children with HL such that gesture use may be associated with future vocalizations which may in turn be related to long-term spoken language outcomes. This exploratory model may be supported by the underlying transactional model of bidirectional language development that occurs through maternal sensitivity in the first two years of life. Additionally, parents of children with HL may be less likely to respond to a single mode of communication than to a combination of modes. This exploratory study provides a theoretical framework by which multimodal communication development in infants and toddlers with HL may be better understood, and suggests hypotheses for future research and implications for intervention practice. PMID- 29040617 TI - Effect of Mahanarva fimbriolata (Hemiptera: Cercopidae) Attack on Photosynthetic Parameters of Sugarcane Genotypes of Contrasting Susceptibility. AB - The aim of this study was to compare the effect of spittlebug Mahanarva fimbriolata Stal (Hemiptera: Cercopidae) on photosynthetic parameters of both a susceptible (SP81-3250) and a resistant (H.Kawandang) sugarcane genotype. In the first assay, the susceptibility level of genotypes to spittlebug was confirmed by comparing damage score and chlorophyll content of the plants. In the second assay, the effect of spittlebug nymphs on photosynthetic characteristics was assessed using the following parameters: Net photosynthetic rate (A), carboxylation efficiency (A/Ci), stomata conductance (gS), transpiration (E), electron transport rate (ETR), maximum quantum yield of Photosystem 2 (PSII) (FV/FM), effective quantum yield (Y(II)), photochemical quenching (Y(NPQ)), and nonphotochemical quenching (Y(NO)). Spittlebug nymphs affected the photosynthetic process of the susceptible genotype SP81-3250 by decreasing the Chl content, ETR, FV/FM, and Y(II). However, this genotype was able to maintain A probably due to its ability to maintain stomata aperture, increase the carboxylation efficiency of Rubisco, and dissipate excess energy through the xanthophyll cycle, as Y(NPQ) increased under the spittlebug attack. On the other hand, the spittlebug did not affect Chl content and FV/FM of the H.Kawandang genotype. Furthermore, H.Kawandang increased A to compensate for the sink demand by the spittlebug by increasing stomatal aperture and carboxylation efficiency and increasing efficiency of the photochemical apparatus in converting light energy into chemical products. We can conclude that the feeding habits of spittlebug nymphs have different impacts on photosynthesis of susceptible and resistant sugarcane genotypes. PMID- 29040618 TI - Securing systems leadership by local government through health and wellbeing strategies. AB - Background: The aim of this study was to strengthen Health and Wellbeing Strategies (HWSs) by identifying potential areas for system leadership across local authorities in relation to specific aspects of health/illness, wider determinants of health and transformational change management. Method: The work involved a document analysis of strengths of the first 12 HWSs produced in the North East of England applying principles of appreciative inquiry (AI), followed by a knowledge-to-action group approach with stakeholders. A summative event resulted in Health and Wellbeing Board (HWB) members identifying potential areas for collaboration. Results: The study identified diverse examples of good practice, and considerable consensus in terms of key priorities, both wider determinants such as employment, transport and housing, and subject areas such as lifestyle issues and children having the best start in life. There was agreement in principle to work across local authority boundaries, with academic partners. Consideration of HWSs as part of a complex adaptive system was welcomed by HWB Members. Conclusions: Collaborative working across HWBs could strengthen the effectiveness of HWSs in relation to inequalities in health, place-shaping and wider determinants of wellbeing. The co-production of identified areas to work toward health improvement was successful. PMID- 29040619 TI - Sublethal Effects of the Neonicotinoid Insecticide Thiamethoxam on the Transcriptome of the Honey Bees (Hymenoptera: Apidae). AB - Neonicotinoid insecticides are now the most widely used insecticides in the world. Previous studies have indicated that sublethal doses of neonicotinoids impair learning, memory capacity, foraging, and immunocompetence in honey bees (Apis mellifera, Linnaeus) (Hymenoptera: Apidae). Despite these, few studies have been carried out on the molecular effects of neonicotinoids. In this study, we focus on the second-generation neonicotinoid thiamethoxam, which is currently widely used in agriculture to protect crops. Using high-throughput RNA-Seq, we investigated the transcriptome profile of honey bees after subchronic exposure to 10 ppb thiamethoxam over 10 d. In total, 609 differentially expressed genes (DEGs) were identified, of which 225 were upregulated and 384 were downregulated. Several genes, including vitellogenin, CSP3, defensin-1, Mrjp1, and Cyp6as5 were selected and further validated using real-time quantitative polymerase chain reaction assays. The functions of some DEGs were identified, and Gene Ontology enrichment analysis showed that the enriched DEGs were mainly linked to metabolism, biosynthesis, and translation. Kyoto Encyclopedia of Genes and Genomes pathway analysis showed that thiamethoxam affected biological processes including ribosomes, the oxidative phosphorylation pathway, tyrosine metabolism pathway, pentose and glucuronate interconversions, and drug metabolism. Overall, our results provide a basis for understanding the molecular mechanisms of the complex interactions between neonicotinoid insecticides and honey bees. PMID- 29040620 TI - Fitness of Mass-Reared Males of Anastrepha obliqua (Diptera: Tephritidae) Resulting From Mating Competition Tests in Field Cages. AB - The sterile insect technique uses males that have been mass-reared in a controlled environment. The insects, once released in the field, must compete to mate. However, the mass-rearing condition supposes a loss of fitness that will be noticeable by wild females. To compare the fitness of wild males and mass-reared males, three competition settings were established. In setting 1, wild males, mass-reared males and wild females were released in field cages. In setting 2, wild females and wild males were released without competition, and in setting 3, mass-reared males and mass-reared females were also released without competition. Male fitness was based on their mating success, fecundity, weight and longevity. The fitness of the females was measured based on weight and several demographic parameters. The highest percentage of mating was between wild males and wild females between 0800 and 0900 h in the competition condition, while the mass reared males started one hour later. The successful wild males weighed more and showed longer mating times, greater longevity and a higher number of matings than the mass-reared males. Although the mass-reared males showed the lowest percentage of matings, their fecundity when mating with wild females indicated a high fitness. Since the survival and fecundity of wild females that mated with mass-reared males decreased to become similar to those of mass-reared females that mated with mass-reared males, females seem to be influenced by the type of male (wild or mass-reared). PMID- 29040621 TI - Current Status of Point-of-Care Testing for Human Immunodeficiency Virus Drug Resistance. AB - Healthcare delivery has advanced due to the implementation of point-of-care testing, which is often performed within minutes to hours in minimally equipped laboratories or at home. Technologic advances are leading to point-of-care kits that incorporate nucleic acid-based assays, including polymerase chain reaction, isothermal amplification, ligation, and hybridization reactions. As a limited number of single-nucleotide polymorphisms are associated with clinically significant human immunodeficiency virus (HIV) drug resistance, assays to detect these mutations have been developed. Early versions of these assays have been used in research. This review summarizes the principles underlying each assay and discusses strategic needs for their incorporation into the management of HIV infection. PMID- 29040622 TI - Neurokinin B Regulates Gonadotropin Secretion, Ovarian Follicle Growth, and the Timing of Ovulation in Healthy Women. AB - Context: Neurokinin B (NKB) is obligate for human puberty, but its role in adult female gonadotropin secretion and ovarian follicle growth is unknown. Objective: To investigate antagonism of NKB on pulsatile gonadotropin-releasing hormone (GnRH) and luteinizing hormone (LH) secretion and ovarian follicle development in healthy women. Design: Open investigation of the effects of a neurokinin-3 receptor (NK3R) antagonist (NK3Ra) vs a no-treatment control cycle. Setting: Clinical research facility. Patients or other participants: Healthy women with regular menses (n = 13). Intervention(s): NK3Ra MLE4901 40 mg taken orally twice daily from cycle day 5 to 6 for 7 days. Main outcome measure(s): LH secretion, ovarian follicle growth, and timing of ovulation. Results: NK3Ra administration reduced basal LH secretion without a change in pulse frequency and delayed the LH surge by 7 days, the duration of treatment [mean cycle day +/- standard error of the mean (SEM), 22 +/- 1 days vs 15 +/- 1 days in control cycles; P = 0.0006]. Follicle growth (mean diameter at the end of administration of NK3Ra administration +/- SEM, 9.3 +/- 0.4 mm vs 15.1 +/- 0.9 mm in control cycles; P < 0.0001) and rising estradiol concentrations (mean +/- SEM, 166 +/- 29 pmol/L vs 446 +/- 86 pmol/L in control cycles; P < 0.0001) were prevented. After treatment, follicle development resumed and normal preovulatory follicle diameter and estradiol concentrations were demonstrated. Postovulatory progesterone rise was similarly delayed (peak cycle day, 30 +/- 2 vs 22 +/- 1; P = 0.002) and cycle length was prolonged (35 +/- 1 days vs 29 +/- 1 days in control cycles; P = 0.0003) but luteal progesterone excretion was unaffected by the NK3Ra (LH surge day +7 mean urinary progesterone levels +/- SEM, 58 +/- 10 pmol/mol vs 48+/-7 pmol/mol creatinine in control cycles; nonsignificant). Conclusion: These data demonstrate the involvement of NKB-NK3R signaling in the physiological regulation of GnRH/LH secretion, determining normal follicle development in women. PMID- 29040624 TI - Altering Practices to Include Bimodal-bilingual (ASL-Spoken English) Programming at a Small School for the Deaf in Canada. AB - Bimodal-bilingual programs are emerging as one way to meet broader needs and provide expanded language, educational and social-emotional opportunities for students who are deaf and hard of hearing (Marschark, M., Tang, G. & Knoors, H. (Eds). (2014). Bilingualism and bilingual Deaf education. New York, NY: Oxford University Press; Paludneviciene & Harris, R. (2011). Impact of cochlear implants on the deaf community. In Paludneviciene, R. & Leigh, I. (Eds.), Cochlear implants evolving perspectives (pp. 3-19). Washington, DC: Gallaudet University Press). However, there is limited research on students' spoken language development, signed language growth, academic outcomes or the social-emotional factors associated with these programs (Marschark, M., Tang, G. & Knoors, H. (Eds). (2014). Bilingualism and bilingual Deaf education. New York, NY: Oxford University Press; Nussbaum, D & Scott, S. (2011). The cochlear implant education center: Perspectives on effective educational practices. In Paludneviciene, R. & Leigh, I. (Eds.) Cochlear implants evolving perspectives (pp. 175-205). Washington, DC: Gallaudet University Press. The cochlear implant education center: Perspectives on effective educational practices. In Paludnevicience & Leigh (Eds). Cochlear implants evolving perspectives (pp. 175-205). Washington, DC: Gallaudet University Press; Spencer, P. & Marschark, M. (Eds.) (2010). Evidence-based practice in educating deaf and hard-of-hearing students. New York, NY: Oxford University Press). The purpose of this case study was to look at formal and informal student outcomes as well as staff and parent perceptions during the first 3 years of implementing a bimodal-bilingual (ASL and spoken English) program within an ASL milieu at a small school for the deaf. Speech and language assessment results for five students were analyzed over a 3-year period and indicated that the students made significant positive gains in all areas, although results were variable. Staff and parent survey responses indicated primarily positive perceptions of the program. Some staff identified ongoing challenges with balancing signed and spoken language use. Many parents responded with strong emotions, some stating that the program was "life-changing" for their children/families. PMID- 29040623 TI - Socio-economic trajectories and cardiovascular disease mortality in older people: the English Longitudinal Study of Ageing. AB - Background: Socio-economic status from early life has been linked to cardiovascular disease risk, but the impact of life-course socio-economic trajectories, as well as the mechanisms underlying social inequalities in cardiovascular disease risk, is uncertain. Objectives: We assessed the role of behavioural, psychosocial and physiological (including inflammatory) factors in the association between life-course socio-economic status and cardiovascular disease mortality in older adults. Methods: Participants were 7846 individuals (44% women) from the English Longitudinal Study of Ageing, a representative study of individuals aged >= 50 years, established in 2002-03. Comprising four indicators of socio-economic status (father's social class, own education, occupational position and wealth), we computed an index of socio-economic trajectory and a lifetime cumulative socio-economic score. Behavioural (smoking, physical activity, alcohol consumption, body mass index) and psychosocial (social relations, loneliness) factors, physiological (blood pressure, total cholesterol, triglycerides) and inflammatory markers (C-reactive protein, fibrinogen), measured repeatedly over time, were potential explanatory variables. Cardiovascular disease mortality was ascertained by linkage of study members to a national mortality register. Mediation was calculated using the traditional 'change-in-estimate method' and alternative approaches such as counterfactual mediation modelling could not be applied in this context. Results: During the 8.4 year follow-up, 1301 study members died (438 from cardiovascular disease). A stable low-social-class trajectory was associated with around double the risk of cardiovascular disease mortality (hazard ratio; 95% confidence interval: 1.94, 1.37; 2.75) compared with a stable high social class across the life course. Individuals in the lowest relative to the highest life-course cumulative socio economic status group were also more than twice as likely to die of cardiovascular disease (2.57, 1.81; 3.65). Behavioural factors and inflammatory markers contributed most to explaining this gradient, whereas the role of psychosocial and other physiological risk factors was modest. Conclusions: In a population-based cohort of older individuals living in England, we provide evidence that disadvantage across the life course is linked to cardiovascular mortality. That behavioural factors and inflammatory markers partially explain this gradient may provide insights into the potential for intervention. PMID- 29040625 TI - RISE: a database of RNA interactome from sequencing experiments. AB - We present RISE (http://rise.zhanglab.net), a database of RNA Interactome from Sequencing Experiments. RNA-RNA interactions (RRIs) are essential for RNA regulation and function. RISE provides a comprehensive collection of RRIs that mainly come from recent transcriptome-wide sequencing-based experiments like PARIS, SPLASH, LIGR-seq, and MARIO, as well as targeted studies like RIA-seq, RAP RNA and CLASH. It also includes interactions aggregated from other primary databases and publications. The RISE database currently contains 328,811 RNA-RNA interactions mainly in human, mouse and yeast. While most existing RNA databases mainly contain interactions of miRNA targeting, notably, more than half of the RRIs in RISE are among mRNA and long non-coding RNAs. We compared different RRI datasets in RISE and found limited overlaps in interactions resolved by different techniques and in different cell lines. It may suggest technology preference and also dynamic natures of RRIs. We also analyzed the basic features of the human and mouse RRI networks and found that they tend to be scale-free, small-world, hierarchical and modular. The analysis may nominate important RNAs or RRIs for further investigation. Finally, RISE provides a Circos plot and several table views for integrative visualization, with extensive molecular and functional annotations to facilitate exploration of biological functions for any RRI of interest. PMID- 29040627 TI - Risk Factors for Measles Virus Infection Among Adults During a Large Outbreak in Postelimination Era in Mongolia, 2015. AB - Background: In 2015, a large nationwide measles outbreak occurred in Mongolia, with very high incidence in the capital city of Ulaanbaatar and among young adults. Methods: We conducted an outbreak investigation including a matched case control study of risk factors for laboratory-confirmed measles among young adults living in Ulaanbaatar. Young adults with laboratory-confirmed measles, living in the capital city of Ulaanbaatar, were matched with 2-3 neighborhood controls. Conditional logistic regression was used to estimate adjusted matched odds ratios (aMORs) for risk factors, with 95% confidence intervals. Results: During March 1 September 30, 2015, 20 077 suspected measles cases were reported; 14 010 cases were confirmed. Independent risk factors for measles included being unvaccinated (adjusted matched odds ratio [aMOR] 2.0, P < .01), being a high school graduate without college education (aMOR 2.6, P < .01), remaining in Ulaanbaatar during the outbreak (aMOR 2.5, P < .01), exposure to an inpatient healthcare facility (aMOR 4.5 P < .01), and being born outside of Ulaanbaatar (aMOR 1.8, P = .02). Conclusions: This large, nationwide outbreak shortly after verification of elimination had high incidence among young adults, particularly those born outside the national capital. In addition, findings indicated that nosocomial transmission within health facilities helped amplify the outbreak. PMID- 29040626 TI - A dose-response meta-analysis of chronic arsenic exposure and incident cardiovascular disease. AB - Background: Consistent evidence at high levels of water arsenic (>=100 ug/l), and growing evidence at low-moderate levels (<100 ug/l), support a link with cardiovascular disease (CVD). The shape of the dose-response across low-moderate and high levels of arsenic in drinking water is uncertain and critical for risk assessment. Methods: We conducted a systematic review of general population epidemiological studies of arsenic and incident clinical CVD (all CVD, coronary heart disease (CHD) and stroke) with three or more exposure categories. In a dose response meta-analysis, we estimated the pooled association between log transformed water arsenic (log-linear) and restricted cubic splines of log transformed water arsenic (non-linear) and the relative risk of each CVD endpoint. Results: Twelve studies (pooled N = 408 945) conducted at high (N = 7) and low-moderate (N = 5) levels of water arsenic met inclusion criteria, and 11 studies were included in the meta-analysis. Compared with 10 ug/l, the estimated pooled relative risks [95% confidence interval (CI)] for 20 ug/l water arsenic, based on a log-linear model, were 1.09 (1.03, 1.14) (N = 2) for CVD incidence, 1.07 (1.01, 1.14) (N = 6) for CVD mortality, 1.11 (1.05, 1.17) (N = 4) for CHD incidence, 1.16 (1.07, 1.26) (N = 6) for CHD mortality, 1.08 (0.99, 1.17) (N = 2) for stroke incidence and 1.06 (0.93, 1.20) (N = 6) for stroke mortality. We found no evidence of non-linearity, although these tests had low statistical power. Conclusions: Although limited by the small number of studies, this analysis supports quantitatively including CVD in inorganic arsenic risk assessment, and strengthens the evidence for an association between arsenic and CVD across low moderate to high levels. PMID- 29040628 TI - Genetic relationships between spring emergence, canopy phenology, and biomass yield increase the accuracy of genomic prediction in Miscanthus. AB - Miscanthus has potential as a bioenergy crop but the rapid development of high yielding varieties is challenging. Previous studies have suggested that phenology and canopy height are important determinants of biomass yield. Furthermore, while genome-wide prediction was effective for a broad range of traits, the predictive ability for yield was very low. We therefore developed models clarifying the genetic associations between spring emergence, consequent canopy phenology and dry biomass yield. The timing of emergence was a moderately strong predictor of early-season elongation growth (genetic correlation >0.5), but less so for growth later in the season and for the final yield (genetic correlation <0.1). In contrast, early-season canopy height was consistently more informative than emergence for predicting biomass yield across datasets for two species in Miscanthus and two growing seasons. We used the associations uncovered through these models to develop selection indices that are expected to increase the response to selection for yield by as much as 21% and improve the performance of genome-wide prediction by an order of magnitude. This multivariate approach could have an immediate impact in operational breeding programmes, as well as enable the integration of crop growth models and genome-wide prediction. PMID- 29040629 TI - Elongation Factor-1alpha Accurately Reconstructs Relationships Amongst Psyllid Families (Hemiptera: Psylloidea), with Possible Diagnostic Implications. AB - The superfamily Psylloidea (Hemiptera: Sternorrhyncha) lacks a robust multigene phylogeny. This impedes our understanding of the evolution of this group of insects and, consequently, an accurate identification of individuals, of their plant host associations, and their roles as vectors of economically important plant pathogens. The conserved nuclear gene elongation factor-1 alpha (EF-1alpha) has been valuable as a higher-level phylogenetic marker in insects and it has also been widely used to investigate the evolution of intron/exon structure. To explore evolutionary relationships among Psylloidea, polymerase chain reaction amplification and nucleotide sequencing of a 250-bp EF-1alpha gene fragment was applied to psyllids belonging to five different families. Introns were detected in three individuals belonging to two families. The nine genera belonging to the family Aphalaridae all lacked introns, highlighting the possibility of using intron presence/absence as a diagnostic tool at a family level. When paired with cytochrome oxidase I gene sequences, the 250 bp EF-1alpha sequence appeared to be a very promising higher-level phylogenetic marker for psyllids. PMID- 29040631 TI - Longevity, Fertility and Fecundity of Adult Blow Flies (Diptera: Calliphoridae) Held at Varying Densities: Implications for Use in Bioconversion of Waste. AB - Large numbers of flies are needed to produce the quantity of larvae required for insect bioconversion of waste. However, this 'mass-rearing' may negatively affect adult survival and reproductive output. This study assessed the suitability for mass-rearing of four blow fly species, Chrysomya chloropyga, Chrysomya chloropyga (Wiedemann), Chrysomya megacephala (F.), Chrysomya putoria (Wiedemann) and Lucilia sericata (Meigen). Flies were kept at densities of 20, 50, 100, 250, 500, and 1,000 flies per 30 * 30 * 30 cm cage with an even sex ratio. Time to 50% mortality (LT50) was recorded, and the effects of density, species, and sex on LT50, fecundity, and fertility were determined. Females survived longer than males across all species. There was evidence for a trade-off between survival and high fecundity in L. sericata and C. chloropyga at density 250. C. megacephala had low fecundity across all densities. At high densities, C. putoria had the lowest mortality and highest fecundity, making it the most suitable for mass rearing. PMID- 29040630 TI - Assessment of beta Cell Mass and Function by AIRmax and Intravenous Glucose in High-Risk Subjects for Type 1 Diabetes. AB - Context: There is little information regarding beta cell mass in individuals at early stages of type 1 diabetes (T1D). Objective: To investigate both acute insulin response to arginine at hyperglycemia (AIRmax), as a correlate of beta cell mass, and beta cell function by the intravenous glucose tolerance test (IVGTT) in subjects at early stages of T1D. Design/Setting/Participants: Forty subjects were enrolled: (1) low-risk group: relatives of patients with T1D with 0 to 1 antibody (n = 21) and (2) high-risk group: relatives with >=2 antibodies (n = 19). Main Outcome Measure: Acute insulin and C-peptide responses to IVGTT and to AIRmax. Participants underwent two IVGTT and AIRmax procedures on different days. Results: AIRmax was reproducible, well tolerated, and correlated to first phase insulin response (FPIR) from IVGTT (r = 0.779). The high-risk group had greater impaired beta cell function compared with the low-risk group, determined both by lower mean FPIR and a greater number of subjects below an established threshold for abnormal function [10 of 19 (52.6%) versus 4 of 21 (19%)]. There was a heterogeneous AIRmax response in these subjects with low FPIR, ranging from 38 to 250 MUU/mL. Conclusions: There is significant variation in insulin secretory reserve as assessed by AIRmax in family members with low beta cell function assessed by FPIR. As AIRmax is a functional measure of beta cell mass, these data suggest heterogeneity in disease pathogenesis in which mass is preserved in relation to function in some individuals. The tolerability and reproducibility of AIRmax suggest it could be a useful stratification measure in clinical trials of disease-modifying therapy. PMID- 29040632 TI - Cohort Profile: The Madagascar Health and Environmental Research (MAHERY) study in north-eastern Madagascar. PMID- 29040633 TI - Prevalence of Pre-antiretroviral-Treatment Drug Resistance by Gender, Age, and Other Factors in HIV-Infected Individuals Initiating Therapy in Kenya, 2013-2014. AB - Background: Pre-antiretroviral-treatment drug resistance (PDR) is a predictor of human immunodeficiency virus (HIV) treatment failure. We determined PDR prevalence and correlates in a Kenyan cohort. Methods: We conducted a cross sectional analysis of antiretroviral (ARV) treatment-eligible HIV-infected participants. PDR was defined as >=2% mutant frequency in a participant's HIV quasispecies at pol codons K103N, Y181C, G190A, M184 V, or K65R by oligonucleotide ligation assay and Illumina sequencing. PDR prevalence was calculated by demographics and codon, stratifying by prior ARV experience. Poisson regression was used to estimate prevalence ratios. Results: PDR prevalences (95% confidence interval [CI]) in 815 ARV-naive adults, 136 ARV experienced adults, and 36 predominantly ARV-naive children were 9.4% (7.5% 11.7%), 12.5% (7.5%-19.3%), and 2.8% (0.1%-14.5%), respectively. Median mutant frequency within an individual's HIV quasispecies was 67%. PDR prevalence in ARV naive women 18-24 years old was 21.9% (9.3%-40.0%). Only age in females associated with PDR: A 5-year age decrease was associated with adjusted PDR prevalence ratio 1.20 (95% CI, 1.06-1.36; P = .004). Conclusions: The high PDR prevalence may warrant resistance testing and/or alternative ARVs in high HIV prevalence settings, with attention to young women, likely to have recent infection and higher rates of resistance. Clinical Trials Registration: NCT01898754. PMID- 29040634 TI - Implementation of acute care patient portals: recommendations on utility and use from six early adopters. AB - Objective: To provide recommendations on how to most effectively implement advanced features of acute care patient portals, including: (1) patient-provider communication, (2) care plan information, (3) clinical data viewing, (4) patient education, (5) patient safety, (6) caregiver access, and (7) hospital amenities. Recommendations: We summarize the experiences of 6 organizations that have implemented acute care portals, representing a variety of settings and technologies. We discuss the considerations for and challenges of incorporating various features into an acute care patient portal, and extract the lessons learned from each institution's experience. We recommend that stakeholders in acute care patient portals should: (1) consider the benefits and challenges of generic and structured electronic care team messaging; (2) examine strategies to provide rich care plan information, such as daily schedule, problem list, care goals, discharge criteria, and post-hospitalization care plan; (3) offer increasingly comprehensive access to clinical data and medical record information; (4) develop alternative strategies for patient education that go beyond infobuttons; (5) focus on improving patient safety through explicit safety oriented features; (6) consider strategies to engage patient caregivers through portals while remaining cognizant of potential Health Insurance Portability and Accountability Act (HIPAA) violations; (7) consider offering amenities to patients through acute care portals, such as information about navigating the hospital or electronic food ordering. PMID- 29040635 TI - Ceftazidime/avibactam use for carbapenem-resistant Klebsiella pneumoniae meningitis: a case report. PMID- 29040637 TI - In Reply: Simple Preoperative Patient-Reported Factors Predict Adverse Outcome After Elective Cranial Neurosurgery. PMID- 29040636 TI - VT-1161 protects mice against oropharyngeal candidiasis caused by fluconazole susceptible and -resistant Candida albicans. AB - Background: Candida albicans, the most common human fungal pathogen, causes chronic mucosal infections in patients with inborn errors of IL-17 immunity that rely heavily on chronic, often lifelong, azole antifungal agents for treatment. However, a rise in azole resistance has predicated a need for developing new antifungal drugs. Objectives: To test the in vitro and in vivo efficacy of VT 1161 and VT-1129 in the treatment of oropharyngeal candidiasis with azole susceptible or -resistant C. albicans strains. Methods: MICs of VT-1161, VT-1129 and nine licensed antifungal drugs were determined for 31 Candida clinical isolates. The drug concentrations in mouse serum and tongues were measured following oral administration. IL-17-signalling-deficient Act1-/- mice were infected with fluconazole-susceptible or fluconazole-resistant C. albicans strains, and the amount of mucosal fungal burden was determined after fluconazole or VT-1161 treatment. Results: Fourteen isolates (45%) were not fluconazole susceptible (MIC >=4 mg/L). VT-1161 and VT-1129 showed significant in vitro activity against the majority of the 31 mucosal clinical isolates (MIC50 0.03 and 0.06 mg/L, respectively), including Candida glabrata (MIC50, 0.125 and 0.25 mg/L, respectively). After oral doses, VT-1161 and VT-1129 concentrations in mouse serum and tongues were well above their MIC50 values. VT-1161 was highly effective as treatment of both fluconazole-susceptible and -resistant oropharyngeal candidiasis in Act1-/- mice. Conclusions: VT-1129 and VT-1161 exhibit significant in vitro activity against Candida strains, including fluconazole-resistant C. albicans and C. glabrata. VT-1161 administration in mice results in significant mucosal drug accumulation and eradicates infection caused by fluconazole-susceptible and -resistant Candida strains. PMID- 29040638 TI - Low serum progesterone on the day of embryo transfer is associated with a diminished ongoing pregnancy rate in oocyte donation cycles after artificial endometrial preparation: a prospective study. AB - STUDY QUESTION: Is there a relationship between serum progesterone (P) and endometrial volume on the day of embryo transfer (ET) with ongoing pregnancy rate (OPR) in artificial endometrium preparation cycles? SUMMARY ANSWER: Patients with serum P < 9.2 ng/ml on the day of ET had a significantly lower OPR but endometrial volume was not related with OPR. WHAT IS KNOWN ALREADY: A window of optimal serum P levels during the embryo implantation period has been described in artificial endometrium preparation cycles. A very low endometrial volume is related to poor reproductive outcome. STUDY DESIGN, SIZE, DURATION: Prospective cohort study with 244 patients who underwent ET in an oocyte donation cycle after an artificial endometrial preparation cycle with estradiol valerate and vaginal micronized progesterone (400 mg/12 h). The study period went from 22 February 2016 to 25 October 2016 (8 months). Sample size was calculated to detect a 20% difference in OPR (35-55%) between two groups according to serum P levels in a two-sided test (80% statistical power, 95% confidence interval (CI)). PARTICIPANTS/MATERIALS, SETTING, METHODS: Patients undergoing their first/second oocyte donation cycle, aged <50, BMI < 30 kg/m2, triple layer endometrium >6.5 mm and 1-2 good quality transferred blastocysts. A private infertility centre. Serum P determination and 3D ultrasound of uterine cavity were performed on the day of ET. Endometrial volume measurements were taken using a virtual organ computer aided analysis (VOCALTM) system. The primary endpoint was OPR beyond pregnancy week 12. MAIN RESULTS AND ROLE OF CHANCE: About 211 of the 244 recruited patients fulfilled all the inclusion/exclusion criteria. Mean serum P on the day of embryo transfer was 12.7 +/- 5.4 ng/ml (Centiles 25, 9.2; 50, 11.8; 75,15.8). OPRs according to serum P quartiles were: Q1: 32.7%; Q2: 49.1%; Q3: 58.5%; Q4: 50.9%. The OPR of Q1 was significantly lower than Q2-Q4: 32.7% versus 52.8%; P = 0.016; RR (95% CI): 0.62 (0.41-0.94). The mean endometrial volume was 3.4 +/- 1.9 ml. Serum P on the day of ET did not correlate with endometrial volume. A logistic regression analysis, adjusted for all the potential confounders, showed that OPR significantly lowered between women with serum P < 9.2 ng/ml versus >=9.2 ng/ml (OR: 0.297; 95%CI: 0.113-0.779); P = 0.013. The ROC curve showed a significant predictive value of serum P levels on the day of ET for OPR, with an AUC (95%CI) = 0.59 (0.51-0.67). LIMITATIONS, REASONS FOR CAUTION: Only the women with normal uterine cavity, appropriate endometrial thickness and good quality blastocysts transfer were included. Extrapolation to an unselected population or to other routes and/or doses of administering P needs to be validated. The role of endometrial volume could not be fully defined as very few patients presented a very low volume. WIDER IMPLICATIONS OF THE FINDINGS: The present study suggests a minimum threshold of serum P values on the day of ET that needs to be reached in artificial endometrial preparation cycles to optimize outcome. No upper threshold could be defined. STUDY FUNDING/COMPETING INTEREST(S): None. TRIAL REGISTRATION NUMBER: NCT02696694. PMID- 29040639 TI - The medical science DMZ: a network design pattern for data-intensive medical science. AB - Objective: We describe a detailed solution for maintaining high-capacity, data intensive network flows (eg, 10, 40, 100 Gbps+) in a scientific, medical context while still adhering to security and privacy laws and regulations. Materials and Methods: High-end networking, packet-filter firewalls, network intrusion detection systems. Results: We describe a "Medical Science DMZ" concept as an option for secure, high-volume transport of large, sensitive datasets between research institutions over national research networks, and give 3 detailed descriptions of implemented Medical Science DMZs. Discussion: The exponentially increasing amounts of "omics" data, high-quality imaging, and other rapidly growing clinical datasets have resulted in the rise of biomedical research "Big Data." The storage, analysis, and network resources required to process these data and integrate them into patient diagnoses and treatments have grown to scales that strain the capabilities of academic health centers. Some data are not generated locally and cannot be sustained locally, and shared data repositories such as those provided by the National Library of Medicine, the National Cancer Institute, and international partners such as the European Bioinformatics Institute are rapidly growing. The ability to store and compute using these data must therefore be addressed by a combination of local, national, and industry resources that exchange large datasets. Maintaining data-intensive flows that comply with the Health Insurance Portability and Accountability Act (HIPAA) and other regulations presents a new challenge for biomedical research. We describe a strategy that marries performance and security by borrowing from and redefining the concept of a Science DMZ, a framework that is used in physical sciences and engineering research to manage high-capacity data flows. Conclusion: By implementing a Medical Science DMZ architecture, biomedical researchers can leverage the scale provided by high-performance computer and cloud storage facilities and national high-speed research networks while preserving privacy and meeting regulatory requirements. PMID- 29040641 TI - Emerging models on the regulation of intercellular transport by plasmodesmata associated callose. AB - The intercellular transport of molecules through membranous channels that traverse the cell walls-so-called plasmodesmata-is of fundamental importance for plant development. Regulation of plasmodesmata aperture (and transport capacity) is mediated by changes in the flanking cell walls, mainly via the synthesis/degradation (turnover) of the (1,3)-beta-glucan polymer callose. The role of callose in organ development and in plant environmental responses is well recognized, but detailed understanding of the mechanisms regulating its accumulation and its effects on the structure and permeability of the channels is still missing. We compiled information on the molecular components and signalling pathways involved in callose turnover at plasmodesmata and, more generally, on the structural and mechanical properties of (1,3)-beta-glucan polymers in cell walls. Based on this revision, we propose models integrating callose, cell walls, and the regulation of plasmodesmata structure and intercellular communication. We also highlight new tools and interdisciplinary approaches that can be applied to gain further insight into the effects of modifying callose in cell walls and its consequences for intercellular signalling. PMID- 29040640 TI - Pathology-MRI Correlations in Diffuse Low-Grade Epilepsy Associated Tumors. AB - It is recognized that IDH mutation negative, low-grade epilepsy associated tumors (LEAT) can show diffuse growth patterns and lack the diagnostic hallmarks of either classical dysembryoplastic neuroepithelial tumors (DNT) or typical ganglioglioma. "Nonspecific or diffuse DNT" and more recently "polymorphous low grade neuroepithelial tumor of the young" have been terms used for these entities. There are few reports on the MRI recognition of these diffuse glioneuronal tumors (dGNT), which is important in planning the extent of surgical resection. In 27 LEATs T1, T2, FLAIR, and postcontrast T1 MRI were evaluated and the pathology reviewed, including immunostaining for NeuN, CD34, MAP2, and IDH1. Each case was then independently classified by pathology or MRI as simple DNT, complex DNT, or dGNT. There was agreement in 23/27 (85%; Kappa score 0.62; p < 0.01). In 4 cases, there was discrepancy in the diagnosis of simple versus complex DNT but 100% agreement achieved for dGNT. DNT showed significantly more expansion of the cortex, cystic change and ventricle extension than dGNT. dGNT showed significantly more subcortical T2w hyperintensity and focal cortical atrophy which correlated on pathology with CD34 expression, cortical neuronal loss and white matter rarefaction. There was no distinct cortical dysplasia component identified by MRI or pathology in any case. This study highlights that dGNT can be reliably discriminated on MRI from DNT. PMID- 29040643 TI - Description of Trichophoromyia velezbernali, a New Sand Fly Species (Diptera: Psychodidae: Phlebotominae) from Colombian Amazonia. AB - A new species of phlebotomine sand fly, Trichophoromyia velezbernali sp. n. Posada-Lopez, Galvis & Galati, from Colombian Amazonia is described with illustrations and images of male and female adults. PMID- 29040642 TI - Dynamic DNA binding, junction recognition and G4 melting activity underlie the telomeric and genome-wide roles of human CST. AB - Human CST (CTC1-STN1-TEN1) is a ssDNA-binding complex that helps resolve replication problems both at telomeres and genome-wide. CST resembles Replication Protein A (RPA) in that the two complexes harbor comparable arrays of OB-folds and have structurally similar small subunits. However, the overall architecture and functions of CST and RPA are distinct. Currently, the mechanism underlying CST action at diverse replication issues remains unclear. To clarify CST mechanism, we examined the capacity of CST to bind and resolve DNA structures found at sites of CST activity. We show that CST binds preferentially to ss-dsDNA junctions, an activity that can explain the incremental nature of telomeric C strand synthesis following telomerase action. We also show that CST unfolds G quadruplex structures, thus providing a mechanism for CST to facilitate replication through telomeres and other GC-rich regions. Finally, smFRET analysis indicates that CST binding to ssDNA is dynamic with CST complexes undergoing concentration-dependent self-displacement. These findings support an RPA-based model where dissociation and re-association of individual OB-folds allow CST to mediate loading and unloading of partner proteins to facilitate various aspects of telomere replication and genome-wide resolution of replication stress. PMID- 29040644 TI - Quality Improvement Feature Series Article 2: Displaying and Analyzing Quality Improvement Data. AB - In this second article in the quality improvement (QI) methods series, we discuss how data are best displayed and analyzed in QI projects while focusing on some similarities with and differences from traditional clinical research. We demonstrate why displaying data over time on a run or control chart is superior to using pre-post analysis for QI studies. We introduce several types of statistical process control charts for data commonly collected during QI programs and provide guidance on how to use the proper chart. Last, we present solutions to several common data challenges in QI projects. PMID- 29040645 TI - Erratum: Epidemiology and clinical characteristics of invasive mould infections: A multicenter, retrospective analysis in five Asian countries. PMID- 29040646 TI - Statins Affect Skeletal Muscle Performance: Evidence for Disturbances in Energy Metabolism. AB - Context: Statin myopathy is linked to disturbances in mitochondrial function and exercise intolerance. Objectives: To determine whether differences exist in exercise performance, muscle function, and muscle mitochondrial oxidative capacity and content between symptomatic and asymptomatic statin users, and control subjects. Design: Cross-sectional study. Setting: Department of Physiology, Radboud University Medical Center. Participants: Long-term symptomatic and asymptomatic statin users, and control subjects (n = 10 per group). Interventions: Maximal incremental cycling tests, involuntary electrically stimulated isometric quadriceps-muscle contractions, and biopsy of vastus lateralis muscle. Main Outcomes Measured: Maximal exercise capacity, substrate use during exercise, muscle function, and mitochondrial energy metabolism. Results: Peak oxygen uptake, maximal work load, and ventilatory efficiency were comparable between groups, but both statin groups had a depressed anaerobic threshold compared with the control group (P = 0.01). Muscle relaxation time was prolonged in both statin groups compared with the control group and rate of maximal force rise was decreased (Ptime*group < 0.001 for both measures). Mitochondrial activity of complexes II and IV was lower in symptomatic statin users than control subjects and tended to be lower for complex (C) III (CII: P = 0.03; CIII: P = 0.05; CIV: P = 0.04). Mitochondrial content tended to be lower in both statin groups than in control subjects. Conclusion: Statin use attenuated substrate use during maximal exercise performance, induced muscle fatigue during repeated muscle contractions, and decreased muscle mitochondrial oxidative capacity. This suggests disturbances in mitochondrial oxidative capacity occur with statin use even in patients without statin-induced muscle complaints. PMID- 29040647 TI - Brain Capillary Ultrastructure in Idiopathic Normal Pressure Hydrocephalus: Relationship With Static and Pulsatile Intracranial Pressure. AB - Idiopathic normal pressure hydrocephalus (iNPH) is a neurodegenerative disease of unknown cause. We investigated the morphology of capillaries in frontal cortex biopsies from iNPH patients and related the observations to overnight intracranial pressure (ICP) scores. A biopsy (0.9*10 mm) was taken from where the ICP sensor subsequently was inserted. Brain capillaries were investigated by electron microscopy of biopsies from 27 iNPH patients and 10 reference subjects, i.e. patients (not healthy individuals) without cerebrospinal fluid circulation disturbances, in whom normal brain tissue was removed as part of necessary neurosurgical treatment. Degenerating and degenerated pericyte processes were identified in 23/27 (85%) iNPH and 6/10 (60%) of reference specimens. Extensive disintegration of pericyte processes were recognized in 11/27 (41%) iNPH and 1/10 (10%) reference specimens. There were no differences in basement membrane (BM) thickness or pericyte coverage between iNPH and reference subjects. The pulsatile or static ICP scores did neither correlate with the BM thickness nor with pericyte coverage. We found increased prevalence of degenerating pericytes in iNPH while the BM thickness and pericyte coverage did not differ from the reference individuals. Observations in iNPH may to some extent be age-related since the iNPH patients were significantly older than the reference individuals. PMID- 29040648 TI - Molecular basis for asymmetry sensing of siRNAs by the Drosophila Loqs-PD/Dcr-2 complex in RNA interference. AB - RNA interference defends against RNA viruses and retro-elements within an organism's genome. It is triggered by duplex siRNAs, of which one strand is selected to confer sequence-specificity to the RNA induced silencing complex (RISC). In Drosophila, Dicer-2 (Dcr-2) and the double-stranded RNA binding domain (dsRBD) protein R2D2 form the RISC loading complex (RLC) and select one strand of exogenous siRNAs according to the relative thermodynamic stability of base pairing at either end. Through genome editing we demonstrate that Loqs-PD, the Drosophila homolog of human TAR RNA binding protein (TRBP) and a paralog of R2D2, forms an alternative RLC with Dcr-2 that is required for strand choice of endogenous siRNAs in S2 cells. Two canonical dsRBDs in Loqs-PD bind to siRNAs with enhanced affinity compared to miRNA/miRNA* duplexes. Structural analysis, NMR and biophysical experiments indicate that the Loqs-PD dsRBDs can slide along the RNA duplex to the ends of the siRNA. A moderate but notable binding preference for the thermodynamically more stable siRNA end by Loqs-PD alone is greatly amplified in complex with Dcr-2 to initiate strand discrimination by asymmetry sensing in the RLC. PMID- 29040649 TI - ClusterCAD: a computational platform for type I modular polyketide synthase design. AB - ClusterCAD is a web-based toolkit designed to leverage the collinear structure and deterministic logic of type I modular polyketide synthases (PKSs) for synthetic biology applications. The unique organization of these megasynthases, combined with the diversity of their catalytic domain building blocks, has fueled an interest in harnessing the biosynthetic potential of PKSs for the microbial production of both novel natural product analogs and industrially relevant small molecules. However, a limited theoretical understanding of the determinants of PKS fold and function poses a substantial barrier to the design of active variants, and identifying strategies to reliably construct functional PKS chimeras remains an active area of research. In this work, we formalize a paradigm for the design of PKS chimeras and introduce ClusterCAD as a computational platform to streamline and simplify the process of designing experiments to test strategies for engineering PKS variants. ClusterCAD provides chemical structures with stereochemistry for the intermediates generated by each PKS module, as well as sequence- and structure-based search tools that allow users to identify modules based either on amino acid sequence or on the chemical structure of the cognate polyketide intermediate. ClusterCAD can be accessed at https://clustercad.jbei.org and at http://clustercad.igb.uci.edu. PMID- 29040650 TI - Interferon-Alpha Reduces Human Hippocampal Neurogenesis and Increases Apoptosis via Activation of Distinct STAT1-Dependent Mechanisms. AB - Background: In humans, interferon-alpha treatment for chronic viral hepatitis is a well-recognized clinical model for inflammation-induced depression, but the molecular mechanisms underlying these effects are not clear. Following peripheral administration in rodents, interferon-alpha induces signal transducer and activator of transcription-1 (STAT1) within the hippocampus and disrupts hippocampal neurogenesis. Methods: We used the human hippocampal progenitor cell line HPC0A07/03C to evaluate the effects of 2 concentrations of interferon-alpha, similar to those observed in human serum during its therapeutic use (500 pg/mL and 5000 pg/mL), on neurogenesis and apoptosis. Results: Both concentrations of interferon-alpha decreased hippocampal neurogenesis, with the high concentration also increasing apoptosis. Moreover, interferon-alpha increased the expression of interferon-stimulated gene 15 (ISG15), ubiquitin-specific peptidase 18 (USP18), and interleukin-6 (IL-6) via activation of STAT1. Like interferon-alpha, co treatment with a combination of ISG15, USP18, and IL-6 was able to reduce neurogenesis and enhance apoptosis via further downstream activation of STAT1. Further experiments showed that ISG15 and USP18 mediated the interferon-alpha induced reduction in neurogenesis (potentially through upregulation of the ISGylation-related proteins UBA7, UBE2L6, and HERC5), while IL-6 mediated the interferon-alpha-induced increase in apoptosis (potentially through downregulation of aquaporin 4). Using transcriptomic analyses, we showed that interferon-alpha regulated pathways involved in oxidative stress and immune response (e.g., Nuclear Factor (erythroid-derived 2)-like 2 [Nrf2] and interferon regulatory factor [IRF] signaling pathway), neuronal formation (e.g., CAMP response element-binding protein [CREB] signaling), and cell death regulation (e.g., tumor protein(p)53 signaling). Conclusions: We identify novel molecular mechanisms mediating the effects of interferon-alpha on the human hippocampus potentially involved in inflammation-induced neuropsychiatric symptoms. PMID- 29040652 TI - Two New Species and Seven New Records of Horse Fly (Diptera: Tabanidae) From Malaysia, Including a Description of New Species and Modified Keys. AB - Horse flies (Diptera: Tabanidae) are of medical and veterinary importance, as their blood-sucking feeding habit enables them to transmit several disease causing agents. In Malaysia, the family Tabanidae consists of 120 species belonging to eight genera. The current study describes two new species (Chrysops idlani sp. nov. and Tabanus ekor sp. nov.) and presents new records for seven species: Tabanus fontinalisSchuurmans Stekhoven, 1926; Tabanus fuscifronsSchuurmans Stekhoven, 1926, Tabanus latifasciesSchuurmans Stekhoven, 1926, Tabanus megalops (Walker, 1854), Tabanus rhinargusPhilip, 1962, Tabanus salvazai (Surcouf, 1922), and Tabanus tristisWulp, 1881. Complete descriptions and illustrations are provided for the new species, and species variations for the new records are discussed. Male Tabanus latifasciesSchuurmans Stekhoven, 1926 and Tabanus perakiensis Ricardo, 1911 are thoroughly described herein. PMID- 29040651 TI - The Chlamydomonas mex1 mutant shows impaired starch mobilization without maltose accumulation. AB - The MEX1 locus of Chlamydomonas reinhardtii was identified in a genetic screen as a factor that affects starch metabolism. Mutation of MEX1 causes a slow-down in the mobilization of storage polysaccharide. Cosegregation and functional complementation analyses were used to assess the involvement of the Mex1 protein in starch degradation. Heterologous expression experiments performed in Escherichia coli and Arabidopsis thaliana allowed us to test the capacity of the algal protein in maltose export. In contrast to the A. thaliana mex1 mutant, the mutation in C. reinhardtii does not lead to maltose accumulation and growth impairment. Although localized in the plastid envelope, the algal protein does not transport maltose efficiently across the envelope, but partly complements the higher plant mutant. Both Mex orthologs restore the growth of the E. coli ptsG mutant strain on glucose-containing medium, revealing the capacity of these proteins to transport this hexose. These findings suggest that Mex1 is essential for starch mobilization in both Chlamydomonas and Arabidopsis, and that this protein family may support several functions and not only be restricted to maltose export across the plastidial envelope. PMID- 29040653 TI - Regulatory mechanisms of sperm flagellar motility by metachronal and synchronous sliding of doublet microtubules. AB - STUDY QUESTION: What is the role of metachronal and synchronous sliding in sperm flagellar motility? SUMMARY ANSWER: Both metachronal and oscillatory synchronous sliding are essential for sperm flagellar motility, while the change in mode of synchronous sliding between the non-oscillatory synchronous sliding of a specific pair of the doublet microtubules and the oscillatory synchronous sliding between most pairs of doublet microtubules modulates the sperm flagellar motility. WHAT IS KNOWN ALREADY: Metachronal and synchronous sliding of doublet microtubules are involved in sperm flagellar motility and regulation of these sliding movements controls flagellar bend formation. STUDY DESIGN, SIZE, DURATION: To study the regulatory mechanisms of metachronal and synchronous sliding in flagellar movement of golden hamster spermatozoa, changes in these sliding movements during hyperactivation were examined by measuring the angle of the tangent to the flagellar shaft with reference to the central axis of the sperm head (the shear angle) along the flagellum. Golden hamster spermatozoa were obtained from the caudal epididymis of five sexually mature golden hamsters. Results from three experiments were averaged. The number of spermatozoa analyzed is 15 activated sperm, 22 hyperactivated sperm and 20 acrosome-reacted sperm. PARTICIPANTS/MATERIALS, SETTING, METHODS: For detailed field-by-field analysis, an individual flagellar image was tracked automatically using the Autotrace module of image analysis software. The coordinate values of the flagellar shaft were used to calculate the shear angle, which is proportional to the amount of microtubule sliding at any given position along the flagellum. The maximum shear angles of metachronal and synchronous sliding were obtained from the mean shear angles between the maximum shear angles of pro-hook bends and the absolute values of the minimum shear angles of anti-hook bends, which represent the amplitude of a set of successive shear angle curves, with 3-12 shear curves covering one beat cycle of sperm flagellar movement. Asymmetry of flagellar waves was expressed by the mean shear angle between the maximum shear angle of pro-hook bends and the minimum shear angle of anti-hook bends at 100 MUm from the head-midpiece junction. MAIN RESULTS AND THE ROLE OF CHANCE: The asymmetrical flagellar movements observed in the activated (non-hyperactivated) and hyperactivated spermatozoa were characterized by the non-oscillatory synchronous sliding of a specific pair of the doublets; the large asymmetrical flagellar movement in the hyperactivated spermatozoa was generated by the large non-oscillatory synchronous sliding. Both the metachronal and synchronous sliding increased during the hyperactivation; however, the large symmetrical flagellar movement of the acrosome-reacted spermatozoa was characterized by the oscillatory synchronous sliding between most pairs of doublets. These results demonstrated that the metachronal and synchronous sliding are involved in generation and modulation of sperm flagellar motility; however, two types of synchronous sliding, non oscillatory and oscillatory sliding, modulate the sperm flagellar motility by enhancing the sliding of a specific pair of the doublets or the sliding between most pairs of the doublets. LARGE SCALE DATA: None. LIMITATIONS, REASONS FOR CAUTION: This is an indirect study of the metachronal and synchronous sliding of doublet microtubules. Studies based on the direct observation of behavior of dynein are needed to clarify the sliding microtubule theory of flagellar movement of spermatozoa. WIDER IMPLICATIONS OF THE FINDINGS: Both the metachronal and oscillatory synchronous sliding of doublet microtubule generate and modulate sperm flagellar motility, while the change in mode of synchronous sliding between the non-oscillatory synchronous sliding and oscillatory synchronous sliding modulates the sperm flagellar motility. The coordination between these sliding leads to various types of flagellar and ciliary motility, including the asymmetrical beating in flagellar and ciliary movement and planar or helical beating in sea urchin spermatozoa. Moreover, the finding that the metachronal sliding and two types of synchronous sliding generate and modulate the flagellar motility will open a new avenue for quantitative analysis of flagellar and ciliary motility. STUDY FUNDING AND COMPETING INTEREST(S): The authors have no conflict of interest and no funding to declare. PMID- 29040654 TI - Does Background Odor in Tea Gardens Mask Attractants? Screening and Application of Attractants for Empoasca onukii Matsuda. AB - Plant volatiles help herbivores to locate their hosts, and therefore, they could be used to help develop pesticide-free pest management strategies. To develop an attractant for tea leafhopper (Empoasca onukii), we screened nine tea plant volatile compounds for their attractiveness using Y-tube olfactometer assays. Results indicated that tea leafhoppers significantly preferred ocimene, limonene, (Z)-3-hexenol, and (Z)-3-hexenyl acetate over clean air. These compounds were combined in a blend which lost its attractiveness at concentrations below 10-2 g/ml in liquid paraffin. In field tests, the blend was attractive to leafhoppers only in autumn, but not in summer. Analyses of the tea field background odor showed that all four components of the blend were present at much higher concentrations in summer (0.05-0.001 ng/liter) than in autumn (~10- to 25-fold lower). In field Y-tube bioassays, compared with the tea field background odor, the blend was attractive at a concentration of 10-1 g/ml in liquid paraffin, but not at 10-2 g/ml. These results suggest that field background odor can disrupt the attractiveness of an attractant based on plant volatiles to herbivores. PMID- 29040655 TI - Effects of 1950 MHz radiofrequency electromagnetic fields on Abeta processing in human neuroblastoma and mouse hippocampal neuronal cells. AB - Alzheimer's disease (AD) is a neurodegenerative disease leading to progressive loss of memory and other cognitive functions. One of the well-known pathological markers of AD is the accumulation of amyloid-beta protein (Abeta), and its plaques, in the brain. Recent studies using Tg-5XFAD mice as a model of AD have reported that exposure to radiofrequency electromagnetic fields (RF-EMF) from cellular phones reduced Abeta plaques in the brain and showed beneficial effects on AD. In this study, we examined whether exposure to 1950 MHz RF-EMF affects Abeta processing in neural cells. We exposed HT22 mouse hippocampal neuronal cells and SH-SY5Y human neuroblastoma cells to RF-EMF (SAR 6 W/kg) for 2 h per day for 3 days, and analyzed the mRNA and protein expression of the key genes related to Abeta processing. When exposed to RF-EMF, mRNA levels of APP, BACE1, ADAM10 and PSEN1 were decreased in HT22, but the mRNA level of APP was not changed in SH-SY5Y cells. The protein expression of APP and BACE1, as well as the secreted Abeta peptide, was not significantly different between RF-EMF-exposed 7w PSML, HT22 and SH-SY5Y cells and the unexposed controls. These observations suggest that RF-EMF exposure may not have a significant physiological effect on Abeta processing of neural cells in the short term. However, considering that we only exposed HT22 and SH-SY5Y cells to RF-EMF for 2 h per day for 3 days, we cannot exclude the possibility that 1950 MHz RF-EMF induces physiological change in Abeta processing with long-term and continuous exposure. PMID- 29040656 TI - Barriers to the success of an electronic pharmacovigilance reporting system in Kenya: an evaluation three years post implementation. AB - Objective: Electronic pharmacovigilance reporting systems are being implemented in many developing countries in an effort to improve reporting rates. This study sought to establish the factors that acted as barriers to the success of an electronic pharmacovigilance reporting system in Kenya 3 years after its implementation. Materials and Methods: Factors that could act as barriers to using electronic reporting systems were identified in a review of literature and then used to develop a survey questionnaire that was administered to pharmacists working in government hospitals in 6 counties in Kenya. Results: The survey was completed by 103 out of the 115 targeted pharmacists (89.5%) and included free text comments. The key factors identified as barriers were: unavailable, unreliable, or expensive Internet access; challenges associated with a hybrid system of paper and electronic reporting tools; and system usability issues. Coordination challenges at the national pharmacovigilance center and changes in the structure of health management in the country also had an impact on the success of the electronic reporting system. Discussion: Different personal, organizational, infrastructural, and reporting system factors affect the success of electronic reporting systems in different ways, depending on the context. Context-specific formative evaluations are useful in establishing the performance of electronic reporting systems to identify problems and ensure that they achieve the desired objectives. Conclusion: While several factors hindered the optimal use of the electronic pharmacovigilance reporting system in Kenya, all were considered modifiable. Effort should be directed toward tackling the identified issues in order to facilitate use and improve pharmacovigilance reporting rates. PMID- 29040658 TI - Fire Does Not Strongly Affect Genetic Diversity or Structure of a Common Treefrog in the Endangered Florida Scrub. AB - Fire regimes influence natural populations of organisms in diverse ways, via direct effects on population dynamics as well as indirect effects on habitat and ecosystem processes. Although many amphibian species have evolved to persist in fire-dependent ecosystems, the effects of fire on the genetic diversity of amphibian populations remain relatively unexplored. We examined how different aspects of fire history relate to population genetic diversity and structure of an abundant anuran, Hyla femoralis, in a large, intact area of Florida scrub containing hundreds of seasonally inundated ponds. Specifically, we assessed the overall population genetic structure and examined whether variation in time since fire, fire intensity, or historical fire frequency at breeding sites explained spatial variation in genetic diversity. Based on our sampling of 17 breeding aggregations within the 2,100-ha study area, neither recent nor frequent fire reduce genetic diversity or restrict connectivity among ponds for H. femoralis. Overall, mean effective population sizes were large (average range = 68-572). We detected a positive trend between effective population size (Ne) and average intensity of the most-recent fire, with this factor explaining 42% of the variation in Ne. Our results contrast with previous studies that consistently demonstrate strong relationships between fire history and population genetic structure of scrub-associated lizard species, suggesting that H. femoralis is resilient to a wide range of fire regimes. More generally, our study contributes to understanding the roles of life-history characteristics and environmental unpredictability in shaping organisms' responses to fire. PMID- 29040657 TI - Highly Expressed Genes Are Preferentially Co-Opted for C4 Photosynthesis. AB - Novel adaptations are generally assembled by co-opting pre-existing genetic components, but the factors dictating the suitability of genes for new functions remain poorly known. In this work, we used comparative transcriptomics to determine the attributes that increased the likelihood of some genes being co opted for C4 photosynthesis, a convergent complex trait that boosts productivity in tropical conditions. We show that independent lineages of grasses repeatedly co-opted the gene lineages that were the most highly expressed in non-C4 ancestors to produce their C4 pathway. Although ancestral abundance in leaves explains which genes were used for the emergence of a C4 pathway, the tissue specificity has surprisingly no effect. Our results suggest that levels of key genes were elevated during the early diversification of grasses and subsequently repeatedly used to trigger a weak C4 cycle via relatively few mutations. The abundance of C4-suitable transcripts therefore facilitated physiological innovation, but the transition to a strong C4 pathway still involved consequent changes in expression levels, leaf specificity, and coding sequences. The direction and amount of changes required for the strong C4 pathway depended on the identity of the genes co-opted, so that ancestral gene expression both facilitates adaptive transitions and constrains subsequent evolutionary trajectories. PMID- 29040659 TI - The epidemiological challenge of traditional chronic disease risk factors in emerging economies. PMID- 29040660 TI - Potential of Three Trap Crops in Managing Nezara viridula (Hemiptera: Pentatomidae) on Tomatoes in Florida. AB - The southern green stink bug, Nezara viridula (L.) (Hemiptera: Pentatomidae), is a serious insect pest of tomatoes in Florida. In this study, we examined the use of three species of trap crops to manage N. viridula in North Florida tomato crops in 2014 and 2015. We used striped sunflower (Helianthus annuus) (Asterales: Asteraceae) and wild game feed sorghum (Sorghum bicolor) (Poales: Poaceae) in both years, but different species of millet each year: browntop millet (Panicum ramosum) (Poales: Poaceae) in 2014 and pearl millet (Pennisetum glaucum) (Poales: Poaceae) in 2015. The number of stink bug adults collected from wild game feed sorghum exceeded the number from sunflower, and none were collected from either species of millet. Sorghum attracted a significantly higher number of adults than did striped sunflower; however, both sunflower and sorghum attracted the adults of N. viridula. Adults of the pest feed on the sorghum panicle and sunflower head (inflorescence). Although fewer stink bugs were found feeding on sunflower, the sunflower was found to be a good source of other natural enemies and pollinators and also attracted significantly greater numbers of the brown stink bug Euschistus servus (Say) (Hemiptera: Pentatomidae) (another pest of tomatoes). While this study demonstrated the effectiveness of sorghum, we recommend that sorghum be planted with another trap crop, preferably sunflower, for better preventive control of the southern green stink bug. PMID- 29040661 TI - Fecal Microbiota Transplantation for Recurrent Clostridium difficile Infections in Pediatric Hematopoietic Stem Cell Transplant Recipients. PMID- 29040662 TI - Molecular subtyping of tumors from patients with familial glioma. AB - Background: Single-gene mutation syndromes account for some familial glioma (FG); however, they make up only a small fraction of glioma families. Gliomas can be classified into 3 major molecular subtypes based on isocitrate dehydrogenase (IDH) mutation and 1p/19q codeletion. We hypothesized that the prevalence of molecular subtypes might differ in familial versus sporadic gliomas and that tumors in the same family should have the same molecular subtype. Methods: Participants in the FG study (Gliogene) provided samples for germline DNA analysis. Formalin-fixed, paraffin-embedded tumors were obtained from a subset of FG cases, and DNA was extracted. We analyzed tissue from 75 families, including 10 families containing a second affected family member. Copy number variation data were obtained using a first-generation Affymetrix molecular inversion probe (MIP) array. Results: Samples from 62 of 75 (83%) FG cases could be classified into the 3 subtypes. The prevalence of the molecular subtypes was: 30 (48%) IDH wildtype, 21 (34%) IDH-mutant non-codeleted, and 11 (19%) IDH-mutant and 1p/19q codeleted. This distribution of molecular subtypes was not statistically different from that of sporadic gliomas (P = 0.54). Of 10 paired FG samples, molecular subtypes were concordant for 7 (kappa = 0.59): 3 IDH-mutant non codeleted, 2 IDH-wildtype, and 2 IDH-mutant and 1p/19q codeleted gliomas. Conclusions: Our data suggest that within individual families, patients develop gliomas of the same molecular subtype. However, we did not observe differences in the prevalence of the molecular subtypes in FG compared with sporadic gliomas. These observations provide further insight into the distribution of molecular subtypes in FG. PMID- 29040663 TI - Heart-type fatty acid-binding protein (H-FABP) and highly sensitive troponin T (hsTnT) as markers of myocardial injury and cardiovascular events in elective percutaneous coronary intervention (PCI). AB - Background/Introduction: Type 4a myocardial infarction (MI) occurs when myocardial injury is combined with either symptoms suggestive of myocardial ischaemia, new left bundle branch block, angiographic loss of patency of a major artery or imaging suggestive of new loss of myocardium. Myocardial injury is defined as a rise of >5 x 99th upper reference limit (URL) of 14 ng/l (i.e. >70 ng/l) for highly sensitive troponin T (hsTnT) at 6 h if hsTnT was normal at baseline or >20% rise from 0 to 6 h if hsTnT was >14 ng/l at baseline. Aim: To assess the prognostic value of biomarkers of myocardial injury following elective percutaneous coronary intervention (PCI). Design: A cohort of 209 patients were included of whom 144 (68.9%) were male, mean age was 68.8 years, 28 (13.4%) were smokers, 31 (14.8%) were diabetic, 199 (95.2%) had hypercholesterolaemia and 138 (66.0%) had hypertension. Methods: We evaluated hsTnT, heart-type fatty acid binding protein (H-FABP), troponin I (TnI), creatine kinase MB type (CKMB), myoglobin, glycogen phosphorylase BB (GPBB) and carbonic anhydrase III (CA III) at 0, 4, 6 and 24 h following elective PCI. Patients were followed up at 1 year to assess for major adverse clinical events (MACE). Results: Myocardial injury was observed in 37 (17.7%) patients. Median hsTnT/H-FABP at 4 h were most predictive. MACE was noted in 6 (2.9%) patients, 3 had type 4a MI post PCI, P = 0.036. Discussion/Conclusions: Median 4 h hsTnT/H-FABP were most predictive of myocardial injury following PCI. H-FABP and hsTnT were predictive of MACE. PMID- 29040664 TI - Coumestrol induces mitochondrial dysfunction by stimulating ROS production and calcium ion influx into mitochondria in human placental choriocarcinoma cells. AB - STUDY QUESTION: Does coumestrol inhibit proliferation of human placental choriocarcinoma cells? SUMMARY ANSWER: Coumestrol promotes cell death in the choriocarcinoma cells by regulating ERK1/2 MAPK and JNK MAPK signaling pathways and through disruption of Ca2+ and ROS homeostasis. WHAT IS KNOWN ALREADY: A number of patients who suffer from choriocarcinomas fail to survive due to delayed diagnosis or a recurrent tumor and resistance to traditional chemotherapy using platinum-based agents and methotrexate. To overcome these limitations, it is important to discover novel compounds which have no adverse effects yet can inhibit the expression of a target molecule to develop, as a novel therapeutic for prevention and/or treatment of choriocarcinomas. STUDY DESIGN, SIZE, DURATION: Effects of coumestrol on human placental choriocarcinoma cell lines, JAR and JEG3, were assessed in diverse assays in a dose- and time-dependent manner. PARTICIPCANTS/MATERIALS, SETTING, METHODS: Effects of coumestrol on cell proliferation, apoptosis (annexin V expression, propidium iodide staining, TUNEL and invasion assays), mitochondria-mediated apoptosis, production of reactive oxygen species (ROS), lipid peroxidation, glutathione levels and endoplasmic reticulum (ER) stress proteins in JAR and JEG3 cells were determined. Signal transduction pathways in JAR and JEG3 cells in response to coumestrol were determined by western blot analyses. MAIN RESULTS AND THE ROLE OF CHANCE: Results of the present study indicated that coumestrol suppressed proliferation and increased apoptosis in JAR and JEG3 cells by inducing pro-apoptotic proteins, Bax and Bak. In addition, coumestrol increased ROS production, as well as lipid peroxidation and glutathione levels in JAR and JEG3 cells. Moreover, coumestrol induced depolarization of mitochondrial membrane potential (MMP) and increased cytosolic and mitochondrial Ca2+ levels in JAR and JEG3 cells. Consistent with those results, treatment of JAR and JEG3 cells with a Ca2+ chelator and an inhibitor of IP3 receptor decreased coumestrol-induced depolarization of MMP and increased proliferation in JAR and JEG3 cells. LARGE SCALE DATA: N/A. LIMITATIONS, REASONS FOR CAUTION: A lack of in vivo animal studies is a major limitation of this research. The effectiveness of coumestrol to induce apoptosis of human placental choriocarcinoma cells requires further investigation. WIDER IMPLICATIONS OF THE FINDINGS: Our results indicate that coumestrol induces apoptotic effects on placental choriocarcinoma cells by regulating cell signaling and mitochondrial-mediated functions, with a potential to impair progression of the cancer. STUDY FUNDING/COMPETING INTEREST(S): This research was supported by grants from the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (No. HI15C0810 awarded to G.S. and HI17C0929 awarded to W.L.). PMID- 29040665 TI - Systematic classification of the His-Me finger superfamily. AB - The His-Me finger endonucleases, also known as HNH or betabetaalpha-metal endonucleases, form a large and diverse protein superfamily. The His-Me finger domain can be found in proteins that play an essential role in cells, including genome maintenance, intron homing, host defense and target offense. Its overall structural compactness and non-specificity make it a perfectly-tailored pathogenic module that participates on both sides of inter- and intra-organismal competition. An extremely low sequence similarity across the superfamily makes it difficult to identify and classify new His-Me fingers. Using state-of-the-art distant homology detection methods, we provide an updated and systematic classification of His-Me finger proteins. In this work, we identified over 100 000 proteins and clustered them into 38 groups, of which three groups are new and cannot be found in any existing public domain database of protein families. Based on an analysis of sequences, structures, domain architectures, and genomic contexts, we provide a careful functional annotation of the poorly characterized members of this superfamily. Our results may inspire further experimental investigations that should address the predicted activity and clarify the potential substrates, to provide more detailed insights into the fundamental biological roles of these proteins. PMID- 29040666 TI - Maternal Tenofovir Disoproxil Fumarate Use During Pregnancy Is Not Associated With Adverse Perinatal Outcomes Among HIV-infected East African Women: A Prospective Study. AB - Background: Tenofovir disoproxil fumarate (TDF) is commonly used in antiretroviral treatment (ART) and pre-exposure prophylaxis regimens. We evaluated the relationship between adverse perinatal outcomes and prenatal TDF use. Methods: Longitudinal data were analyzed from human immunodeficiency virus (HIV)-infected women who became pregnant during 2 HIV prevention studies conducted among HIV-serodiscordant couples in Kenya and Uganda. Pregnancies included were singleton, not terminated by an induced abortion, and had documented 3-drug ART use. Multivariate generalized estimating equation models were used to determine the association of prenatal TDF and perinatal outcomes. Results: The most frequent ART regimens were TDF/3TC/EFV (39%) and AZT/3TC/NVP (34%); 49% of pregnancies had prenatal TDF exposure and 6% used a protease inhibitor. Neonatal death, preterm birth, and pregnancy loss occurred in 2%, 8%, and 12% of pregnancies, respectively. No differences were observed between pregnancies with and without exposure to TDF in the frequency of pregnancy loss (adjusted prevalence rate ratio [aPRR] 1.19, P = .8) or neonatal death (aPRR 0.68, P = .6). Preterm birth occurred less frequently among pregnancies exposed to TDF (aPRR, 0.34, P = .02). Conclusion: Maternal TDF use did not adversely affect perinatal outcomes. PMID- 29040667 TI - Data Resource Profile: The Nordic Obesity Surgery Cohort (NordOSCo). PMID- 29040669 TI - Basic domain of telomere guardian TRF2 reduces D-loop unwinding whereas Rap1 restores it. PMID- 29040668 TI - Aurora Kinase B, a novel regulator of TERF1 binding and telomeric integrity. AB - AURKB (Aurora Kinase B) is a serine/threonine kinase better known for its role at the mitotic kinetochore during chromosome segregation. Here, we demonstrate that AURKB localizes to the telomeres in mouse embryonic stem cells, where it interacts with the essential telomere protein TERF1. Loss of AURKB function affects TERF1 telomere binding and results in aberrant telomere structure. In vitro kinase experiments successfully identified Serine 404 on TERF1 as a putative AURKB target site. Importantly, in vivo overexpression of S404-TERF1 mutants results in fragile telomere formation. These findings demonstrate that AURKB is an important regulator of telomere structural integrity. PMID- 29040670 TI - Virus taxonomy: the database of the International Committee on Taxonomy of Viruses (ICTV). AB - The International Committee on Taxonomy of Viruses (ICTV) is charged with the task of developing, refining, and maintaining a universal virus taxonomy. This task encompasses the classification of virus species and higher-level taxa according to the genetic and biological properties of their members; naming virus taxa; maintaining a database detailing the currently approved taxonomy; and providing the database, supporting proposals, and other virus-related information from an open-access, public web site. The ICTV web site (http://ictv.global) provides access to the current taxonomy database in online and downloadable formats, and maintains a complete history of virus taxa back to the first release in 1971. The ICTV has also published the ICTV Report on Virus Taxonomy starting in 1971. This Report provides a comprehensive description of all virus taxa covering virus structure, genome structure, biology and phylogenetics. The ninth ICTV report, published in 2012, is available as an open-access online publication from the ICTV web site. The current, 10th report (http://ictv.global/report/), is being published online, and is replacing the previous hard-copy edition with a completely open access, continuously updated publication. No other database or resource exists that provides such a comprehensive, fully annotated compendium of information on virus taxa and taxonomy. PMID- 29040671 TI - Nanoscale dynamics of centromere nucleosomes and the critical roles of CENP-A. AB - In the absence of a functioning centromere, chromosome segregation becomes aberrant, leading to an increased rate of aneuploidy. The highly specific recognition of centromeres by kinetochores suggests that specific structural characteristics define this region, however, the structural details and mechanism underlying this recognition remains a matter of intense investigation. To address this, high-speed atomic force microscopy was used for direct visualization of the spontaneous dynamics of CENP-A nucleosomes at the sub-second time scale. We report that CENP-A nucleosomes change conformation spontaneously and reversibly, utilizing two major pathways: unwrapping, and looping of the DNA; enabling core transfer between neighboring DNA substrates. Along with these nucleosome dynamics we observed that CENP-A stabilizes the histone core against dissociating to histone subunits upon unwrapping DNA, unique from H3 cores which are only capable of such plasticity in the presence of remodeling factors. These findings have implications for the dynamics and integrity of nucleosomes at the centromere. PMID- 29040672 TI - Unsupervised Learning of Spatiotemporal Interictal Discharges in Focal Epilepsy. AB - BACKGROUND: Interictal epileptiform discharges are an important biomarker for localization of focal epilepsy, especially in patients who undergo chronic intracranial monitoring. Manual detection of these pathophysiological events is cumbersome, but is still superior to current rule-based approaches in most automated algorithms. OBJECTIVE: To develop an unsupervised machine-learning algorithm for the improved, automated detection and localization of interictal epileptiform discharges based on spatiotemporal pattern recognition. METHODS: We decomposed 24 h of intracranial electroencephalography signals into basis functions and activation vectors using non-negative matrix factorization (NNMF). Thresholding the activation vector and the basis function of interest detected interictal epileptiform discharges in time and space (specific electrodes), respectively. We used convolutive NNMF, a refined algorithm, to add a temporal dimension to basis functions. RESULTS: The receiver operating characteristics for NNMF-based detection are close to the gold standard of human visual-based detection and superior to currently available alternative automated approaches (93% sensitivity and 97% specificity). The algorithm successfully identified thousands of interictal epileptiform discharges across a full day of neurophysiological recording and accurately summarized their localization into a single map. Adding a temporal window allowed for visualization of the archetypal propagation network of these epileptiform discharges. CONCLUSION: Unsupervised learning offers a powerful approach towards automated identification of recurrent pathological neurophysiological signals, which may have important implications for precise, quantitative, and individualized evaluation of focal epilepsy. PMID- 29040673 TI - Assimilation of 'omics' strategies to study the cuticle layer and suberin lamellae in plants. AB - The assembly of the lipophilic cuticle layer and suberin lamellae, approximately 450 million years ago, was a major evolutionary development that enabled plants to colonize terrestrial habitats. The cuticle layer is composed of cutin polyester and embedded cuticular waxes, whereas the suberin lamellae consist of very long chain fatty acid derivatives, glycerol, and phenolics cross-linked with alkyl ferulate-embedded waxes. Due to their substantial biological roles in plant life, the mechanisms underlying the assembly of these structures have been extensively investigated. In the last decade, the introduction of 'omics' approaches, including genomics, transcriptomics, proteomics, and metabolomics, have been key in the identification of novel genetic and chemical elements involved in the formation and function of the cuticle layer and suberin lamellae. This review summarizes contemporary studies that utilized various large-scale, 'omics' strategies in combination with novel technologies to unravel how building blocks and polymers of these lipophilic barriers are made, and moreover linking structure to function along developmental programs and stress responses. We anticipate that the studies discussed here will inspire scientists studying lipophilic barriers to integrate complementary 'omics' approaches in their efforts to tackle as yet unresolved questions and engage the main challenges of the field to date. PMID- 29040674 TI - Evaluation of apoptotic- and autophagic-related protein expressions before and after IVM of fresh, slow-frozen and vitrified pre-pubertal mouse testicular tissue. AB - STUDY QUESTION: Do freezing and in vitro culture procedures enhance the expression of proteins involved in apoptotic or autophagic pathways in murine pre pubertal testicular tissue? SUMMARY ANSWER: IVM strongly modified apoptosis- and autophagy-related relative protein levels in mice testicular tissue whereas the impact of cryopreservation procedures was minimal at the end of the culture. WHAT IS KNOWN ALREADY: In vitro spermatogenesis remains a challenging technical issue as it imposes to find a very close balance between survival and death of germ cell natural precursors (i.e. gonocytes and spermatogonia), which will eventually undergo a complete spermatogenesis close to in vivo conditions. The establishment of efficient culture conditions coupled with suitable cryopreservation procedures (e.g. controlled slow freezing [CSF] and solid surface vitrification [SSV]) of pre-pubertal testicular tissue is a crucial step in the fields of fertility preservation and restoration to improve the spermatic yield obtained in vitro. STUDY DESIGN, SIZE, DURATION: Here, we study cryopreservation procedures (i.e. CSF or SSV) and the impact of culture media compositions. A first set of 66 mouse pre-pubertal testes were directly cultured during 30, 36, 38 and 60 days (D) from 2.5 to 6.5-day-old CD-1 mice to evaluate the impact of time-aspect of culture and to endorse the reverse phase protein microarrays (RPPM) technique as an adapted experimental tool for the field of in vitro spermatogenesis. Ninety others fresh, slow-frozen and vitrified pre-pubertal testes were cultured during 30 days for the principal study to evaluate the impact of cryopreservation procedures before and after culture. Thirty-four testes dissected from 2.5, 6.5, 36.5, 40.5, 42.5 and 62.5 days postpartum (dpp) mice, corresponding to the time frames of spermatogenesis orchestrated in vitro, were used as in vivo controls. PARTICIPANTS/MATERIALS, SETTING, METHODS: After in vitro culture, testicular tissue samples originated from 2.5 or 6.5-day-old CD-1 male mice were analyzed using RPPM. This targeted proteomic technique allowed us to assess the expression level of 29 apoptosis- and autophagy-related factors by normalizing blank corrected signal values. In addition, morphological analyses (e.g. HES, PAS, TRA98 and CREM) and DNA fragmentation in intra-tubular cells (i.e. terminal deoxynucleotidyl transferase dUTP nick end labeling; TUNEL) were assessed for the distinct experimental conditions tested as well as for in vivo control mouse testes. MAIN RESULTS AND THE ROLE OF CHANCE: A validation of the RPPM procedure in the field of in vitro spermatogenesis was completed with assay and array robustness before a principal study concerning the evaluation of the impact of in vitro culture and cryopreservation procedures. The proportion of elongated spermatids and the total cell number per seminiferous tubule tended to be very different between the in vivo and in vitro conditions (P < 0.05), suggesting the presence of a beneficial regulation on the first spermatogenesis wave by intrinsic apoptosis (Caspase_9) and autophagy (Atg5) factors (P < 0.0003 and r2 = 0.74). Concerning the impact of culture media compositions, a basic medium (BM) composed of alphaMEM plus 10% KnockOutTM serum replacement and gentamicin supplemented with retinol (Rol) and vitamin E (Vit. E) was selected as the best culture medium for fresh 6.5 dpp tissue cultured during 30D with 27.7 +/- 8.10% of seminiferous tubules containing elongated spermatids. Concerning the impact of cryopreservation procedures, SSV did not have any impact on the morphological parameters evaluated after culture in comparison to fresh tissue (FT) controls. The proportion of tubules with elongated spermatids on testicular explants cultured with BMRol+Vit. E was not different between SSV (6.6 +/- 1.6%) and CSF (5.3 +/- 1.9%); however, round spermatids were observed more frequently for SSV (19 +/- 6.2%) than CSF (3.3 +/- 1.9%, P = 0.0317). Even if the proportion of TUNEL-positive cells for BMRol+Vit. E was higher at D30 after SSV (4.12 +/- 0.26%) than CSF (1.86 +/- 0.12%, P = 0.0022) and FT (2.69 +/- 0.33%, P = 0.0108), the DNA damages observed at the end of the culture (i.e. D30) were similar to respective 6.5 dpp controls. In addition, the relative protein level expression ratio of an apoptotic factor, the phosphorylated FADD on Fas, was reduced by 64 fold in vitrified testes cultured with BMRol+Vit. E. Furthermore, we found in this study that the StemPro(r)-34 SFM culture medium supplemented with growth factors (e.g. EGF, bFGF, GDNF and LIF) prevented the differentiation of spermatogonial stem cells in favor of a significant proliferation with a better architectural pattern than in vivo 6.5 dpp controls with an increase of seminiferous tubules area for FT (P = 0.0357) and CSF (P = 0.0317). LIMITATIONS REASONS FOR CAUTION: Despite our promising results, the evaluation of apoptotic- and autophagic-related proteins was studied for a limited amount of proteins and on global testicular tissue. WIDER IMPLICATIONS OF THE FINDINGS: The data presented herein will help to improve apoptotic and autophagic understanding during the first spermatogenic wave. Moreover, our findings illustrate for the first time that, using finely-tuned experimental conditions, a testicular in vitro culture combined with proteomic technologies may significantly facilitate the study of cryopreservation procedures and in vitro culture evaluations. This study may also contribute to improve work on testicular tissues from pre-pubertal and adolescent cancer survivors. STUDY FUNDING/COMPETING INTEREST(S): This study was supported by a Ph.D. grant from the Rouen Normandie Universite and a financial support from 'la Ligue nationale contre le cancer' (both awarded to L.D.), funding from Institute for Research and Innovation in Biomedicine (IRIB), Agence de la Biomedecine, and co-supported by European Union and Region Normandie. Europe gets involved in Normandie with European Regional Development Fund (ERDF). The authors declare that there is no conflict of interest. PMID- 29040675 TI - Fluctuation localization imaging-based fluorescence in situ hybridization (fliFISH) for accurate detection and counting of RNA copies in single cells. AB - Quantitative gene expression analysis in intact single cells can be achieved using single molecule-based fluorescence in situ hybridization (smFISH). This approach relies on fluorescence intensity to distinguish between true signals, emitted from an RNA copy hybridized with multiple oligonucleotide probes, and background noise. Thus, the precision in smFISH is often compromised by partial or nonspecific probe binding and tissue autofluorescence, especially when only a small number of probes can be fitted to the target transcript. Here we provide an accurate approach for setting quantitative thresholds between true and false signals, which relies on on-off duty cycles of photoswitchable dyes. This fluctuation localization imaging-based FISH (fliFISH) uses on-time fractions (measured over a series of exposures) collected from transcripts bound to as low as 8 probes, which are distinct from on-time fractions collected from nonspecifically bound probes or autofluorescence. Using multicolor fliFISH, we identified radial gene expression patterns in mouse pancreatic islets for insulin, the transcription factor, NKX2-2 and their ratio (Nkx2-2/Ins2). These radial patterns, showing higher values in beta cells at the islet core and lower values in peripheral cells, were lost in diabetic mouse islets. In summary, fliFISH provides an accurate, quantitative approach for detecting and counting true RNA copies and rejecting false signals by their distinct on-time fractions, laying the foundation for reliable single-cell transcriptomics. PMID- 29040676 TI - Dysbindin promotes progression of pancreatic ductal adenocarcinoma via direct activation of PI3K. AB - Pancreatic ductal adenocarcinoma (PDAC) represents a biggest challenge in clinic oncology due to its invasiveness and lack of targeted therapeutics. Our recent study showed that schizophrenia susceptibility factor dysbindin exhibited significant higher level in serum of PDAC patients. However, the functional relevance of dysbindin in PDAC is still unclear. Here, we show that dysbindin promotes tumor growth both in vitro and in vivo by accelerating the G1/S phase transition in cell cycle via PI3K/AKT signaling pathway. Mechanistically, dysbindin interacts with PI3K and stimulates the kinase activity of PI3K. Moreover, overexpression of dysbindin in PDAC is correlated with clinicopathological characteristics significantly, such as histological differentiation (P = 0.011) and tumor size (P = 0.007). Kaplan-Meier survival curves show that patients with high dysbindin expression exhibit poorer overall survival, compared to those with low dysbindin expression (P < 0.001). Multivariate analysis reveals that dysbindin is an independent prognostic factor for pancreatic ductal adenocarcinoma (P = 0.001). Thus, our findings reveal that dysbindin is a novel PI3K activator and promotes PDAC progression via stimulation of PI3K/AKT. Dysbindin therefore represents a potential target for prognosis and therapy of PDAC. PMID- 29040677 TI - Navigation-Linked Heads-Up Display in Intracranial Surgery: Early Experience. AB - BACKGROUND: The use of intraoperative navigation during microscope cases can be limited when attention needs to be divided between the operative field and the navigation screens. Heads-up display (HUD), also referred to as augmented reality, permits visualization of navigation information during surgery workflow. OBJECTIVE: To detail our initial experience with HUD. METHODS: We retrospectively reviewed patients who underwent HUD-assisted surgery from April 2016 through April 2017. All lesions were assessed for accuracy and those from the latter half of the study were assessed for utility. RESULTS: Seventy-nine patients with 84 pathologies were included. Pathologies included aneurysms (14), arteriovenous malformations (6), cavernous malformations (5), intracranial stenosis (3), meningiomas (27), metastasis (4), craniopharygniomas (4), gliomas (4), schwannomas (3), epidermoid/dermoids (3), pituitary adenomas (2) hemangioblastoma (2), choroid plexus papilloma (1), lymphoma (1), osteoblastoma (1), clival chordoma (1), cerebrospinal fluid leak (1), abscess (1), and a cerebellopontine angle Teflon granuloma (1). Fifty-nine lesions were deep and 25 were superficial. Structures identified included the lesion (81), vessels (48), and nerves/brain tissue (31). Accuracy was deemed excellent (71.4%), good (20.2%), or poor (8.3%). Deep lesions were less likely to have excellent accuracy (P = .029). HUD was used during bed/head positioning (50.0%), skin incision (17.3%), craniotomy (23.1%), dural opening (26.9%), corticectomy (13.5%), arachnoid opening (36.5%), and intracranial drilling (13.5%). HUD was deactivated at some point during the surgery in 59.6% of cases. There were no complications related to HUD use. CONCLUSION: HUD can be safely used for a wide variety of vascular and oncologic intracranial pathologies and can be utilized during multiple stages of surgery. PMID- 29040679 TI - 2'-Fluoroarabinonucleic acid modification traps G-quadruplex and i-motif structures in human telomeric DNA. PMID- 29040678 TI - Extended models for nosocomial infection: parameter estimation and model selection. AB - We consider extensions to previous models for patient level nosocomial infection in several ways, provide a specification of the likelihoods for these new models, specify new update steps required for stochastic integration, and provide programs that implement these methods to obtain parameter estimates and model choice statistics. Previous susceptible-infected models are extended to allow for a latent period between initial exposure to the pathogen and the patient becoming themselves infectious, and the possibility of decolonization. We allow for multiple facilities, such as acute care hospitals or long-term care facilities and nursing homes, and for multiple units or wards within a facility. Patient transfers between units and facilities are tracked and accounted for in the models so that direct importation of a colonized individual from one facility or unit to another might be inferred. We allow for constant transmission rates, rates that depend on the number of colonized individuals in a unit or facility, or rates that depend on the proportion of colonized individuals. Statistical analysis is done in a Bayesian framework using Markov chain Monte Carlo methods to obtain a sample of parameter values from their joint posterior distribution. Cross validation, deviance information criterion and widely applicable information criterion approaches to model choice fit very naturally into this framework and we have implemented all three. We illustrate our methods by considering model selection issues and parameter estimation for data on methicilin-resistant Staphylococcus aureus surveillance tests over 1 year at a Veterans Administration hospital comprising seven wards. PMID- 29040680 TI - Variable Levels of Resistance of Soybean Genotypes on the Performance of Euschistus heros (Hemiptera: Pentatomidae). AB - The Neotropical brown stink bug Euschistus heros (Fabr.) (Hemiptera: Pentatomidae) is one of the major soybean pests in South America. This species is responsible for high levels of infestation, causes critical damage to seeds, it is associated with leaf retention on plants, and it is extremely difficult to manage. Host plant resistance is a notable technique to assist in reducing the stink bug population in soybean crops. The antibiosis resistance of soybean genotypes to E. heros was evaluated in laboratory. Genotypes L1-1-01, 'IAC 100', 'IAC 23', and 'Coodetec 208' increased the length of nymphal developmental time. PI 274453 and PI 227687 reduced egg viability and also adult body weight. PI 274454, 'IAC 19', PI 227687, and PI 229358 led to low nymphal viability. These results suggest that these genotypes may be useful in soybean breeding programs that focus on the development of genotypes resistant to E. heros. PMID- 29040681 TI - 20 years of the SMART protein domain annotation resource. AB - SMART (Simple Modular Architecture Research Tool) is a web resource (http://smart.embl.de) for the identification and annotation of protein domains and the analysis of protein domain architectures. SMART version 8 contains manually curated models for more than 1300 protein domains, with approximately 100 new models added since our last update article (1). The underlying protein databases were synchronized with UniProt (2), Ensembl (3) and STRING (4), doubling the total number of annotated domains and other protein features to more than 200 million. In its 20th year, the SMART analysis results pages have been streamlined again and its information sources have been updated. SMART's vector based display engine has been extended to all protein schematics in SMART and rewritten to use the latest web technologies. The internal full text search engine has been redesigned and updated, resulting in greatly increased search speed. PMID- 29040682 TI - Dose-response curves for analyzing of dicentric chromosomes and chromosome translocations following doses of 1000 mGy or less, based on irradiated peripheral blood samples from five healthy individuals. AB - In terms of biological dosimetry at the time of radiation exposure, the dicentric chromosome (Dic) assay (DCA) is the gold standard for assessing for the acute phase and chromosome translocation (Tr) analysis is the gold standard for assessing the chronic phase. It is desirable to have individual dose-response curves (DRCs) for each laboratory because the analysis criteria differ between laboratories. We constructed the DRCs for radiation dose estimation (with three methods) using peripheral blood (PB) samples from five healthy individuals. Aliquots were irradiated with one of eight gamma-ray doses (0, 10, 20, 50, 100, 200, 500 or 1000 mGy), then cultured for 48 h. The number of chromosome aberrations (CAs) was analyzed by DCA, using Giemsa staining and centromere fluorescence in situ hybridization (centromere-FISH) and by chromosome painting (chromosome pairs 1, 2 and 4) for Tr analysis. In DCA, there was large variation between individuals in the frequency of Dics formed, and the slopes of the DRCs were different. In Tr analysis, although variation was observed in the frequency of Tr, the slopes of the DRCs were similar after adjusting the background for age. Good correlation between the irradiation dose and the frequency of CAs formed was observed with these three DRCs. However, performing three different biological dosimetry assays simultaneously on PB from five donors nonetheless results in variation in the frequency of CAs formed, especially at doses of 50 mGy or less, highlighting the difficulty of biological dosimetry using these methods. We conclude that it might be difficult to construct universal DRCs. PMID- 29040684 TI - Multimodality Treatment of Skull Base Chondrosarcomas: The Role of Histology Specific Treatment Protocols. PMID- 29040683 TI - Quantitating translational control: mRNA abundance-dependent and independent contributions and the mRNA sequences that specify them. AB - Translation rate per mRNA molecule correlates positively with mRNA abundance. As a result, protein levels do not scale linearly with mRNA levels, but instead scale with the abundance of mRNA raised to the power of an 'amplification exponent'. Here we show that to quantitate translational control, the translation rate must be decomposed into two components. One, TRmD, depends on the mRNA level and defines the amplification exponent. The other, TRmIND, is independent of mRNA amount and impacts the correlation coefficient between protein and mRNA levels. We show that in Saccharomyces cerevisiae TRmD represents ~20% of the variance in translation and directs an amplification exponent of 1.20 with a 95% confidence interval [1.14, 1.26]. TRmIND constitutes the remaining ~80% of the variance in translation and explains ~5% of the variance in protein expression. We also find that TRmD and TRmIND are preferentially determined by different mRNA sequence features: TRmIND by the length of the open reading frame and TRmD both by a ~60 nucleotide element that spans the initiating AUG and by codon and amino acid frequency. Our work provides more appropriate estimates of translational control and implies that TRmIND is under different evolutionary selective pressures than TRmD. PMID- 29040685 TI - A pooled analysis of dietary sugar/carbohydrate intake and esophageal and gastric cardia adenocarcinoma incidence and survival in the USA. AB - Background: During the past 40 years, esophageal/gastric cardia adenocarcinoma (EA/GCA) incidence increased in Westernized countries, but survival remained low. A parallel increase in sugar intake, which may facilitate carcinogenesis by promoting hyperglycaemia, led us to examine sugar/carbohydrate intake in association with EA/GCA incidence and survival. Methods: We pooled 500 EA cases, 529 GCA cases and 2027 controls from two US population-based case-control studies with cases followed for vital status. Dietary intake, assessed by study-specific food frequency questionnaires, was harmonized and pooled to estimate 12 measures of sugar/carbohydrate intake. Multivariable-adjusted odds ratios (ORs) and hazard ratios [95% confidence intervals (CIs)] were calculated using multinomial logistic regression and Cox proportional hazards regression, respectively. Results: EA incidence was increased by 51-58% in association with sucrose (ORQ5vs.Q1 = 1.51, 95% CI = 1.01-2.27), sweetened desserts/beverages (ORQ5vs.Q1 = 1.55, 95% CI = 1.06-2.27) and the dietary glycaemic index (ORQ5vs.Q1 = 1.58, 95% CI = 1.13-2.21). Body mass index (BMI) and gastro-esophageal reflux disease (GERD) modified these associations (Pmultiplicative-interaction <= 0.05). For associations with sucrose and sweetened desserts/beverages, respectively, the OR was elevated for BMI < 25 (ORQ4-5vs.Q1-3 = 1.79, 95% CI = 1.26-2.56 and ORQ4 5vs.Q1-3 = 1.45, 95% CI = 1.03-2.06), but not BMI >= 25 (ORQ4-5vs.Q1-3 = 1.05, 95% CI = 0.76-1.44 and ORQ4-5vs.Q1-3 = 0.85, 95% CI = 0.62-1.16). The EA glycaemic index association was elevated for BMI >= 25 (ORQ4-5vs.Q1-3 = 1.38, 95% CI = 1.03-1.85), but not BMI < 25 (ORQ4-5vs.Q1-3 = 0.88, 95% CI = 0.62-1.24). The sucrose-EA association OR for GERD < weekly was 1.58 (95% CI = 1.16-2.14), but for GERD >= weekly was 1.01 (95% CI = 0.70-1.47). Sugar/carbohydrate measures were not associated with GCA incidence or EA/GCA survival. Conclusions: If confirmed, limiting intake of sucrose (e.g. table sugar), sweetened desserts/beverages, and foods that contribute to a high glycaemic index, may be plausible EA risk reduction strategies. PMID- 29040686 TI - The World Health Organization's Response to Emerging Human Immunodeficiency Virus Drug Resistance and a Call for Global Action. AB - The global community, including the World Health Organization (WHO), has committed to ending the AIDS epidemic and to ensuring that 90% of people living with human immunodeficiency virus (HIV) are diagnosed, 90% start treatment, and 90% achieve and maintain virological suppression. The emergence of HIV drug resistance (HIVDR) as antiretroviral treatment programs expand could preclude the 90-90-90 targets adopted by the United Nations General Assembly at the High-Level Meeting on Ending AIDS from being achieved. The Global Action Plan on HIVDR is a call for collective action grounded on normative guidance providing a standardized and robust approach to monitoring, preventing, and responding to HIVDR over the next 5 years (2017-2021). WHO is committed to supporting country, global, regional, and national partners to implement and monitor the progress of the Global Action Plan. This article outlines the key components of WHO's strategy to tackle HIVDR and the role the organization takes in leading the global response to HIVDR. PMID- 29040687 TI - Mortality risk in patients on hemodiafiltration versus hemodialysis: a 'real world' comparison from the DOPPS. AB - Background: With its convective component, hemodiafiltration (HDF) provides better middle molecule clearance compared with hemodialysis (HD) and is postulated to improve survival. A previous analysis of Dialysis Outcomes and Practice Patterns Study (DOPPS) data in 1998-2001 found lower mortality rates for high replacement fluid volume HDF versus HD. Randomized controlled trials have not shown uniform survival advantage for HDF; in secondary (non-randomized) analyses, better outcomes were observed in patients receiving the highest convection volumes. Methods: In a 'real-world' setting, we analyzed patients on dialysis >90 days from seven European countries in DOPPS Phases 4 and 5 (2009 15). Adjusted Cox regression was used to study HDF (versus HD) and mortality, overall and by replacement fluid volume. Results: Among 8567 eligible patients, 2012 (23%) were on HDF, ranging from 42% in Sweden to 12% in Germany. Median follow-up was 1.5 years during which 1988 patients died. The adjusted mortality hazard ratio (95% confidence interval) was 1.14 (1.00-1.29) for any HDF versus HD and 1.08 (0.92-1.28) for HDF >20 L replacement fluid volume versus HD. Similar results were found for cardiovascular and infection-related mortality. In an additional analysis aiming to avoid treatment-by-indication bias, we did not observe lower mortality rates in facilities using more HDF (versus HD). Conclusions: Our results do not support the notion that HDF provides superior patient survival. Further trials designed to test the effect of high-volume HDF (versus lower volume HDF versus HD) on clinical outcomes are needed to adequately inform clinical practices. PMID- 29040688 TI - The online Tabloid Proteome: an annotated database of protein associations. AB - A complete knowledge of the proteome can only be attained by determining the associations between proteins, along with the nature of these associations (e.g. physical contact in protein-protein interactions, participation in complex formation or different roles in the same pathway). Despite extensive efforts in elucidating direct protein interactions, our knowledge on the complete spectrum of protein associations remains limited. We therefore developed a new approach that detects protein associations from identifications obtained after re processing of large-scale, public mass spectrometry-based proteomics data. Our approach infers protein association based on the co-occurrence of proteins across many different proteomics experiments, and provides information that is almost completely complementary to traditional direct protein interaction studies. We here present a web interface to query and explore the associations derived from this method, called the online Tabloid Proteome. The online Tabloid Proteome also integrates biological knowledge from several existing resources to annotate our derived protein associations. The online Tabloid Proteome is freely available through a user-friendly web interface, which provides intuitive navigation and data exploration options for the user at http://iomics.ugent.be/tabloidproteome. PMID- 29040690 TI - In memory of Professor Takeo Ohnishi. PMID- 29040689 TI - Regulatory dynamics in the ternary DnaA complex for initiation of chromosomal replication in Escherichia coli. AB - In Escherichia coli, the level of the ATP-DnaA initiator is increased temporarily at the time of replication initiation. The replication origin, oriC, contains a duplex-unwinding element (DUE) flanking a DnaA-oligomerization region (DOR), which includes twelve DnaA-binding sites (DnaA boxes) and the DNA-bending protein IHF-binding site (IBS). Although complexes of IHF and ATP-DnaA assembly on the DOR unwind the DUE, the configuration of the crucial nucleoprotein complexes remains elusive. To resolve this, we analyzed individual DnaA protomers in the complex and here demonstrate that the DUE-DnaA-box-R1-IBS-DnaA-box-R5M region is essential for DUE unwinding. R5M-bound ATP-DnaA predominantly promotes ATP-DnaA assembly on the DUE-proximal DOR, and R1-bound DnaA has a supporting role. This mechanism might support timely assembly of ATP-DnaA on oriC. DnaA protomers bound to R1 and R5M directly bind to the unwound DUE strand, which is crucial in replication initiation. Data from in vivo experiments support these results. We propose that the DnaA assembly on the IHF-bent DOR directly binds to the unwound DUE strand, and timely formation of this ternary complex regulates replication initiation. Structural features of oriC support the idea that these mechanisms for DUE unwinding are fundamentally conserved in various bacterial species including pathogens. PMID- 29040691 TI - Differential Growth Rates of Benign vs. Malignant Thyroid Nodules. AB - Context: Thyroid nodule growth was once considered concerning for malignancy, but data showing that benign nodules grow questioned the use of this paradigm. To date, however, no studies have adequately evaluated whether growth rates differ in malignant vs. benign nodules. Objective: To sonographically evaluate growth rates in benign and malignant thyroid nodules >=1 cm. Design: Prospective, cohort study of patients with tissue diagnosis of benign or malignant disease, with repeated ultrasound evaluation six or more months apart. Main Outcomes: Growth rate in largest dimension of malignant compared with benign thyroid nodules. Regression models were used to evaluate predictors of growth. Results: Malignant nodules (126) met inclusion criteria (>=6-month nonoperative followup) and were compared with 1363 benign nodules. Malignant nodules were not found to be uniquely selected or prospectively observed solely for low-risk phenotype. Median ultrasound intervals were similar (21.8 months for benign nodules; 20.9 months for malignant nodules). Malignant nodules were more likely to grow >2 mm/y compared with benign nodules [relative risk (RR) = 2.5, 95% confidence interval (CI), 1.6 to 3.1; P < 0.001], which remained true after adjustment for clinical factors. The RR of a nodule being malignant increased with faster growth rates. Malignant nodules growing >2 mm/y had greater odds of being more aggressive cancers [intermediate risk: odds ratio (OR) = 2.99; 95% CI, 1.20 to 7.47; P = 0.03; higher risk: OR = 8.69; 95% CI, 1.78 to 42.34; P = 0.02]. Conclusions: Malignant nodules, especially higher-risk phenotypes, grow faster than benign nodules. As growth >2 mm/y predicts malignant compared with benign disease, this clinical parameter can contribute to the assessment of thyroid cancer risk. PMID- 29040692 TI - RMBase v2.0: deciphering the map of RNA modifications from epitranscriptome sequencing data. AB - More than 100 distinct chemical modifications to RNA have been characterized so far. However, the prevalence, mechanisms and functions of various RNA modifications remain largely unknown. To provide transcriptome-wide landscapes of RNA modifications, we developed the RMBase v2.0 (http://rna.sysu.edu.cn/rmbase/), which is a comprehensive database that integrates epitranscriptome sequencing data for the exploration of post-transcriptional modifications of RNAs and their relationships with miRNA binding events, disease-related single-nucleotide polymorphisms (SNPs) and RNA-binding proteins (RBPs). RMBase v2.0 was expanded with ~600 datasets and ~1 397 000 modification sites from 47 studies among 13 species, which represents an approximately 10-fold expansion when compared with the previous release. It contains ~1 373 000 N6-methyladenosines (m6A), ~5400 N1 methyladenosines (m1A), ~9600 pseudouridine (Psi) modifications, ~1000 5 methylcytosine (m5C) modifications, ~5100 2'-O-methylations (2'-O-Me), and ~2800 modifications of other modification types. Moreover, we built a new module called 'Motif' that provides the visualized logos and position weight matrices (PWMs) of the modification motifs. We also constructed a novel module termed 'modRBP' to study the relationships between RNA modifications and RBPs. Additionally, we developed a novel web-based tool named 'modMetagene' to plot the metagenes of RNA modification along a transcript model. This database will help researchers investigate the potential functions and mechanisms of RNA modifications. PMID- 29040693 TI - AmyPro: a database of proteins with validated amyloidogenic regions. AB - Soluble functional proteins may transform into insoluble amyloid fibrils that deposit in a variety of tissues. Amyloid formation is a hallmark of age-related degenerative disorders. Perhaps surprisingly, amyloid fibrils can also be beneficial and are frequently exploited for diverse functional roles in organisms. Here we introduce AmyPro, an open-access database providing a comprehensive, carefully curated collection of validated amyloid fibril-forming proteins from all kingdoms of life classified into broad functional categories (http://amypro.net). In particular, AmyPro provides the boundaries of experimentally validated amyloidogenic sequence regions, short descriptions of the functional relevance of the proteins and their amyloid state, a list of the experimental techniques applied to study the amyloid state, important structural/functional/variation/mutation data transferred from UniProt, a list of relevant PDB structures categorized according to protein states, database cross references and literature references. AmyPro greatly improves on similar currently available resources by incorporating both prions and functional amyloids in addition to pathogenic amyloids, and allows users to screen their sequences against the entire collection of validated amyloidogenic sequence fragments. By enabling further elucidation of the sequential determinants of amyloid fibril formation, we hope AmyPro will enhance the development of new methods for the precise prediction of amyloidogenic regions within proteins. PMID- 29040695 TI - Intracranial Bypass of Posterior Inferior Cerebellar Artery Aneurysms. PMID- 29040694 TI - LBD14/ASL17 Positively Regulates Lateral Root Formation and is Involved in ABA Response for Root Architecture in Arabidopsis. AB - The LATERAL ORGAN BOUNDARIES (LOB) DOMAIN/ASYMMETRIC LEAVES2-LIKE (LBD/ASL) gene family members play key roles in diverse aspects of plant development. Previous studies have shown that LBD16, 18, 29 and 33 are critical for integrating the plant hormone auxin to control lateral root development in Arabidopsis thaliana. In the present study, we show that LBD14 is expressed exclusively in the root where it promotes lateral root (LR) emergence. Repression of LBD14 expression by ABA correlates with the inhibitory effects of ABA on LR emergence. Transient gene expression assays with Arabidopsis protoplasts demonstrated that LBD14 is a nuclear-localized transcriptional activator. The knock-down of LBD14 expression by RNA interference (RNAi) resulted in reduced LR formation by delaying both LR primordium development and LR emergence, whereas overexpression of LBD14 in Arabidopsis enhances LR formation. We show that ABA (but not other plant hormones such as auxin, brassinosteroids and cytokinin) specifically down-regulated beta glucuronidase (GUS) expression under the control of the LBD14 promoter in transgenic Arabidopsis during LR development from initiation to emergence and endogenous LBD14 transcript levels in the root. Moreover, RNAi of LBD14 enhanced the LR suppression in response to ABA, whereas LBD14 overexpression did not alter the ABA-mediated suppression of LR formation. Taken together, these results suggest that LBD14 promoting LR formation is one of the critical factors regulated by ABA to inhibit LR growth, contributing to the regulation of the Arabidopsis root system architecture in response to ABA. PMID- 29040696 TI - The Effect of Surgical Start Time on Complications Associated With Neurological Surgeries. AB - BACKGROUND: Neurosurgical procedures are necessary at all times of day. Other surgical specialties have examined the effect of surgical start time (SST) on morbidity and mortality; however, a similar study has not been performed for neurosurgical procedures. OBJECTIVE: To perform a retrospective cohort study describing the association between SST and operative morbidity. METHODS: We analyzed all patients undergoing neurological surgery between January 1, 2007 and August 1, 2014 at our institution. This study included 15 807 patients. A total of 785 complications were identified through the self-reported morbidity and mortality reports created by faculty and resident neurosurgeons. We used multilevel logistic regression to investigate the association of SST with morbidity. RESULTS: In multilevel logistic regression, our Baseline model demonstrated that the odds of complication increased by more than 50% for start times between 21:01 and 07:00 (odds ratio [OR] 1.53, 95% confidence interval [CI] 1.03-2.29, P = .04). When accounting for the length of the surgery, the odds of a complication were even greater for later time periods 21:01 to 07:00 (OR 2.16, 95% CI 1.44-3.23, P < .001). The only statistically significant factor that predicted severity of the complication was if the operation was emergent compared to elective (OR 1.70, 95% CI 1.11-2.60, P = .02). An SST between 21:01 and 07:00 substantially contributed when severe complications were isolated (OR 1.61, 95% CI 1.50-2.90, P = .08). CONCLUSION: Patients with SSTs between 21:01 and 07:00 are at an increased risk of developing morbidity compared to patients with an SST earlier in the day. PMID- 29040697 TI - Mapping Selection within Drosophila melanogaster Embryo's Anatomy. AB - We present a survey of selection across Drosophila melanogaster embryonic anatomy. Our approach integrates genomic variation, spatial gene expression patterns, and development with the aim of mapping adaptation over the entire embryo's anatomy. Our adaptation map is based on analyzing spatial gene expression information for 5,969 genes (from text-based annotations of in situ hybridization data directly from the BDGP database, Tomancak et al. 2007) and the polymorphism and divergence in these genes (from the project DGRP, Mackay et al. 2012).The proportion of nonsynonymous substitutions that are adaptive, neutral, or slightly deleterious are estimated for the set of genes expressed in each embryonic anatomical structure using the distribution of fitness effects-alpha method (Eyre-Walker and Keightley 2009). This method is a robust derivative of the McDonald and Kreitman test (McDonald and Kreitman 1991). We also explore whether different anatomical structures differ in the phylogenetic age, codon usage, or expression bias of the genes they express and whether genes expressed in many anatomical structures show more adaptive substitutions than other genes.We found that: 1) most of the digestive system and ectoderm-derived structures are under selective constraint, 2) the germ line and some specific mesoderm-derived structures show high rates of adaptive substitution, and 3) the genes that are expressed in a small number of anatomical structures show higher expression bias, lower phylogenetic ages, and less constraint. PMID- 29040698 TI - Clinical Outcome after Endoscopic Endonasal Resection of Tuberculum Sella Meningiomas. AB - BACKGROUND: In select cases, the endoscopic endonasal approach (EEA) has distinct advantages for resection of tuberculum sella meningiomas (TSM). OBJECTIVE: To report the extent of resection (EOR), complication rates, and outcomes in a large series of TSM treated by the EEA. METHODS: Twenty-five consecutive TSM cases treated by EEA from 2008 to 2016 were retrospectively reviewed. Patient history, imaging, volumetric EOR, complications, and outcomes are presented. RESULTS: Mean patient age was 53.9 yr, with female predominance (84%). Preoperatively, 84% of patients had vision impairment and 68% had optic canal tumor invasion. The tumor was abutting or partially encasing the anterior cerebral artery in 14 (56%) and 3 (12%) patients, respectively. The supraclinoid internal carotid artery (ICA) was partially or completely encased in 4 (16%) and 4 (16%) patients, respectively. Gross total resection (GTR) was achieved in 19/25 (76%) cases. Complete ICA encasement was the most common reason for subtotal resection. Among patients without complete ICA encasement, GTR was achieved in 19/20 (95%) patients. Optic canal invasion, tumor volume, intratumoral calcifications, and partial vascular encasement were not limiting factors for GTR. Eighty-eight percent of patients with preoperative visual impairment had improvement or normalization of vision. No patient experienced permanent visual deterioration or new permanent pituitary dysfunction. Cerebrospinal fluid leakage occurred in 2 (8%) cases. CONCLUSION: The EEA for resection of TSM provides high rates of GTR and visual improvement with a low rate of complications. Direct contact or partial encasement of the ICA and anterior cerebral artery does not limit the EOR. PMID- 29040699 TI - Letter: Simple Preoperative Patient-Reported Factors Predict Adverse Outcome After Elective Cranial Neurosurgery. PMID- 29040700 TI - Radiation-Induced Changes After Stereotactic Radiosurgery for Brain Arteriovenous Malformations: A Systematic Review and Meta-Analysis. AB - BACKGROUND: Radiation-induced changes (RICs) are the most common complication of stereotactic radiosurgery (SRS) for brain arteriovenous malformations (AVMs), and they appear as perinidal T2-weighted hyperintensities on magnetic resonance imaging, with or without associated neurological symptoms. OBJECTIVE: To determine the rates of RIC after AVM SRS and identify risk factors. METHODS: A literature review was performed using PubMed and MEDLINE to identify studies reporting RIC in AVM patients treated with SRS. RICs were classified as radiologic (any neuroimaging evidence), symptomatic (any associated neurological deterioration, regardless of duration), and permanent (neurological decline without recovery). Baseline, treatment, and outcomes data were extracted for statistical analysis. RESULTS: Based on pooled data from 51 studies, the overall rates of radiologic, symptomatic, and permanent RIC after AVM SRS were 35.5% (1143/3222 patients, 32 studies), 9.2% (499/5447 patients, 46 studies), and 3.8% (202/5272 patients, 39 studies), respectively. Radiologic RIC was significantly associated with lack of prior AVM rupture (odds ratio [OR] = 0.57; 95% confidence interval [CI]: 0.47-0.69; P < .001) and treatment with repeat SRS (OR = 6.19; 95% CI: 2.42-15.85; P < .001). Symptomatic RIC was significantly associated with deep AVM location (OR = 0.38; 95% CI: 0.21-0.67; P < .001). CONCLUSION: Approximately 1 in 3 patients with AVMs treated with SRS develop radiologically evident RIC, and of those with radiologic RIC, 1 in 4 develop neurological symptoms. Lack of prior AVM hemorrhage and repeat SRS are risk factors for radiologic RIC, and deep nidus location is a risk factor for symptomatic RIC. PMID- 29040701 TI - Comparison of glomerular filtration rate estimating equations derived from creatinine and cystatin C: validation in the Age, Gene/Environment Susceptibility Reykjavik elderly cohort. AB - Background: Validation studies comparing glomerular filtration rate (GFR) equations based on standardized creatinine and cystatin C assays in the elderly are needed. The Icelandic Age, Gene/Environment Susceptibility-Kidney cohort was used to compare two pairs of recently developed GFR equations, the revised Lund Malmo creatinine equation (LMRCr) and the arithmetic mean of the LMRCr and Caucasian, Asian, Paediatric and Adult cystatin C equations (MEANLMR+CAPA), as well as the Full Age Spectrum creatinine equation (FASCr) and its combination with cystatin C (FASCr+Cys), with the corresponding pair of Chronic Kidney Disease Epidemiology Collaboration equations (CKD-EPICr and CKD-EPICr+Cys). Methods: A total of 805 individuals, 74-93 years of age, underwent measurement of GFR (mGFR) using plasma clearance of iohexol. Four metrics were used to compare the performance of the GFR equations: bias, precision, accuracy [including the percentage of participants with estimated GFR (eGFR) within 30% of mGFR (P30)] and the ability to detect mGFR <60 mL/min/1.73 m2. Results: All equations had a P30 >90%. LMRCr and FASCr yielded significantly higher precision and P30 than CKD EPICr, while bias was significantly worse. LMRCr, FASCr and CKD-EPICr showed similar ability to detect mGFR <60 mL/min/1.73 m2 based on the area under the receiver operating characteristic curves. MEANLMR+CAPA, FASCr+Cys and CKD EPICr+Cys all exhibited consistent improvements compared with the corresponding creatinine-based equations. Conclusion: None of the creatinine-based equations was clearly superior overall in this community-dwelling elderly cohort. The addition of cystatin C improved all of the creatinine-based equations. PMID- 29040702 TI - Literacy Outcomes in Deaf Students with Cochlear Implants: Current State of the Knowledge. AB - The purpose of this paper is to examine the available peer-reviewed research regarding literacy achievement in deaf children with cochlear implants. A related goal is to identify gaps in the empirical literature and suggest directions for future research. Included in this review are studies that exclusively report reading and writing outcomes for groups of students. A total of 21 studies were identified, representing those published over approximately a 20-year time period (1997-2016) and collectively reporting the literacy outcomes for over 1,000 cochlear implant users. Overall findings of the studies of reading comprehension suggest that the majority of participants achieved scores in the average range, although a wide-range of variability was reported. Only 3 studies of writing were available for review, with 2 reporting lower achievement in this area as compared to reading. Factors impacting outcomes achieved such as age at implantation, presence of additional disabilities, consistency of device use, and communication modality are explored and summarized. PMID- 29040704 TI - In Planta Processing of the SpCas9-gRNA Complex. AB - In CRISPR/Cas9 (clustered regularly interspaced short palindromic repeat/CRISPR associated protein 9)-mediated genome editing in plants, Streptococcus pyogenes Cas9 (SpCas9) protein and the required guide RNA (gRNA) are, in most cases, expressed from a stably integrated transgene. Generally, SpCas9 protein is expressed from an RNA polymerase (pol) II promoter, while gRNA is expressed from a pol III promoter. However, pol III promoters have not been much characterized other than in model plants, making it difficult to select appropriate promoters for specific applications, while pol II transcripts have to be processed to generate functional gRNAs. Recently, successful processing of a pol II transcript into functional gRNAs using ribozyme or Csy4-RNA cleavage systems has been demonstrated. Here, we show that functional gRNAs can be efficiently processed using SpCas9 protein and plant endogenous RNA cleavage systems without the need for a specific RNA processing system. In our system, SpCas9 RNA and gRNA are both transcribed as a single RNA using a single pol II promoter; translated SpCas9 protein can be bound to this RNA and, finally, extra RNA sequences are trimmed by plant RNA processing systems to form a functional SpCas9-gRNA complex. The efficiency of targeted mutagenesis using our novel SpCas9-gRNA fused system was comparable with that of the SpCas9-gRNA system with ribozyme sequence, achieving rates of up to 100% in rice. Our results could be useful in developing stable SpCas9-gRNA expression systems and in RNA virus vector-mediated genome editing systems in plants. PMID- 29040705 TI - The MRPP1/MRPP2 complex is a tRNA-maturation platform in human mitochondria. AB - Mitochondrial polycistronic transcripts are extensively processed to give rise to functional mRNAs, rRNAs and tRNAs; starting with the release of tRNA elements through 5'-processing by RNase P (MRPP1/2/3-complex) and 3'-processing by RNase Z (ELAC2). Here, we show using in vitro experiments that MRPP1/2 is not only a component of the mitochondrial RNase P but that it retains the tRNA product from the 5'-processing step and significantly enhances the efficiency of ELAC2 catalyzed 3'-processing for 17 of the 22 tRNAs encoded in the human mitochondrial genome. Furthermore, MRPP1/2 retains the tRNA product after ELAC2 processing and presents the nascent tRNA to the mitochondrial CCA-adding enzyme. Thus, in addition to being an essential component of the RNase P reaction, MRPP1/2 serves as a processing platform for several down-stream tRNA maturation steps in human mitochondria. These findings are of fundamental importance for our molecular understanding of disease-related mutations in MRPP1/2, ELAC2 and mitochondrial tRNA genes. PMID- 29040703 TI - Evidence and context of use for contrast enhancement as a surrogate of disease burden and treatment response in malignant glioma. AB - The use of contrast enhancement within the brain on CT or MRI has been the gold standard for diagnosis and therapeutic response assessment in malignant gliomas for decades. The use of contrast enhancing tumor size, however, remains controversial as a tool for accurately diagnosing and assessing treatment efficacy in malignant gliomas, particularly in the current, quickly evolving therapeutic landscape. The current article consolidates overwhelming evidence from hundreds of studies in the field of neuro-oncology, providing the necessary evidence base and specific contexts of use for consideration of contrast enhancing tumor size as an appropriate surrogate biomarker for disease burden and as a tool for measuring treatment response in malignant glioma, including glioblastoma. PMID- 29040706 TI - Inhibition of survivin expression after using oxaliplatin and vinflunine to induce cytogenetic damage in vitro in lymphocytes from colon cancer patients and healthy individuals. AB - Chemotherapy drugs usually inflict a lethal dose to tumour cells with the consequence that these cells are being killed by cell death. However, each round of chemotherapy also causes damage to normal somatic cells. The DNA cross-linking agent oxaliplatin (OXP), which causes DNA double-strand breaks, and vinflunine (VFN), which disrupts the mitotic spindle, are two of these chemotherapy drugs which were evaluated in vitro using peripheral lymphocytes from colorectal cancer patients and healthy individuals to determine any differential response. Endpoints examined included micronucleus (MN) induction using the cytokinesis blocked micronucleus (CBMN) assay and pancentromeric fluorescence in situ hybridisation. Also, survivin expression was monitored since it regulates the mitotic spindle checkpoint and inhibits apoptosis. OXP produced cytogenetic damage (micronuclei in binucleated cells) via its clastogenic but also previously unknown aneugenic action, possibly through interfering with topoisomerase II, whilst VFN produced micronuclei in mononucleated cells because of incomplete karyokinesis. Survivin expression was found to be significantly reduced in a concentration-dependent manner by not only OXP but surprisingly also VFN. This resulted in large numbers of multinucleated cells found with the CBMN assay. As survivin is upregulated in cancers, eliminating apoptosis inhibition might provide a more targeted chemotherapy approach; particularly, when considering VFN, which only affects cycling cells by inhibiting their mitotic spindle, and alongside possibly other pro-apoptotic compounds. Hence, these newly found properties of VFN -the inhibition of survivin expression-might demonstrate a promising chemotherapeutic approach as VFN induces less DNA damage in normal somatic cells compared to other chemotherapeutic compounds. PMID- 29040707 TI - Effective Radiation Dose in the Wrist Resulting from a Radiographic Device, Two CBCT Devices and One MSCT Device: A Comparative Study. AB - The objective of the present study was to assess and compare the effective doses in the wrist region resulting from conventional radiography device, multislice computed tomography (MSCT) device and two cone beam computed tomography (CBCT) devices using MOSFET dosemeters and a custom made anthropomorphic RANDO phantom according to the ICRP 103 recommendation. The effective dose for the conventional radiography was 1.0 MUSv. The effective doses for the NewTom 5 G CBCT ranged between 0.7 MUSv and 1.6 MUSv, for the Planmed Verity CBCT 2.4 MUSv and for the MSCT 8.6 MUSv. When compared with the effective dose for AP- and LAT projections of a conventional radiographic device, this study showed an 8.6-fold effective dose for standard MSCT protocol and between 0.7 and 2.4-fold effective dose for standard CBCT protocols. When compared to the MSCT device, the CBCT devices offer a 3D view of the wrist at significantly lower effective doses. PMID- 29040708 TI - HPLC Analysis to Determine the Half-life and Bioavailability of the Termiticides Bifenthrin and Fipronil in Soil. AB - The aim of this study was to test the bioavailability and degradation in soil of the termiticides bifenthrin and fipronil, which are used to treat subterranean termites (Heterotermes indicola, Wasmann). Soil collected from different areas of Lahore was categorized as sandy clay loam (SCL) or sandy loam (SL). Laboratory bioassays were conducted to determine the bioavailability ratio of bifenthrin and fipronil in each type of soil after different periods of time. LT50 values were determined posttreatment at different time intervals. Regarding soil type, both termiticides were more effective in SL soil, compared with SCL soil posttreatment. There were significant differences in termite mortality in treated compared with untreated control samples (P < 0.005). To test the degradation rate of soil termiticides, both qualitative and quantitative analyses were carried out by HPLC, and the effect of time on termiticide recovery rate determined. Calculated half-life values for bifenthrin (maximum, 1,002 and 1,262 d in SCL soil and SL soil, respectively) indicated that it persisted in both soil types at all concentrations. The maximum calculated half-life values of fipronil were 270 and 555 d in SCL and SL soil, respectively. At lower concentrations and over longer periods of time, fipronil completely degraded in SL soil, while a negligible amount was detected in SCL soil. Termiticide concentration decreased over time, as did the termiticide recovery rate. Overall, bifenthrin was more persistent than fipronil under all treatment conditions tested. PMID- 29040709 TI - Occupational asthma caused by an epoxy amine hardener. AB - We describe a 43-year-old epoxy floor layer who developed work-related asthma while exposed to an epoxy hardener based on isophorone diamine (IPDA). Challenge exposures to the curing of the epoxy resin system and subsequently to the polyfunctional amine hardener containing IPDA both elicited delayed asthmatic reactions. This report further indicates that exposure to epoxy hardeners containing polyfunctional amines should be considered as a potential cause of occupational asthma. Appropriate work hygiene measures should be implemented to minimize airborne exposure to these volatile compounds. PMID- 29040710 TI - Quality Improvement Feature Series Article 3: Writing and Reviewing Quality Improvement Manuscripts. AB - Achieving rapid and meaningful improvement in healthcare requires the dissemination of quality improvement project results via publication. Doing this well requires detailed descriptions of the complex interventions and of the context in which the improvement took place. This report builds on the first 2 articles in the series to cover important considerations in writing quality improvement manuscripts with a focus on how it differs from writing traditional clinical research reports. The recommendations we outline here also apply to reviewing quality improvement manuscripts. PMID- 29040711 TI - Diagnosis and Outcome of Biopsies of Indeterminate Lesions of the Cavernous Sinus and Meckel's Cave: A Retrospective Case Series in 85 Patients. AB - BACKGROUND: When clinical presentation, laboratory studies, or imaging cannot diagnose cavernous sinus (CS) and/or Meckel's cave (MC) lesions, biopsy may be necessary. OBJECTIVE: To review our institutional series of biopsies of indeterminate CS and MC lesions. METHODS: Records from January 1994 to June 2016 were searched for biopsied indeterminate CS and MC lesions. We defined indeterminate as having an atypical imaging appearance or a broad differential and the need for tissue for definitive diagnosis. We defined primary tumors as originating from cells inherent or near the CS and MC. RESULTS: Eighty-five patients were included (median age 59 [2-85] yr); 22 (28%) had a cancer history. Approaches included frontotemporal craniotomy (n = 48, 56%), endoscopic endonasal (n = 20, 24%), percutaneous transforamen ovale (n = 12, 14%), or retrosigmoid craniotomy (n = 5, 6%). Final diagnosis was metastatic in 27 (32%), primary in 21 (25%), inflammatory in 13 (15%), hematologic in 11 (13%), fungal in 5 (5%), and nondefinitive or nondiagnostic in 8 (10%) patients. Thirteen (59%) patients with a cancer history (n = 22) had a diagnosis consistent with their prior cancer; the remaining had a second pathology (n = 6, 27%) or nondiagnostic biopsy (n = 3, 14%). Two patients had surgical complications resulting in death. CONCLUSION: In this patient cohort, metastatic tumors were the most likely pathology. The biopsy threshold should be lower in patients with a cancer history if clinical or radiographic diagnosis is uncertain as 27% had a second disease. However, we consider biopsy as a last resort because the risk of major morbidity/mortality, while low, is not zero. PMID- 29040714 TI - NICE issues positive recommendation for XELJANZ(r)?(tofacitinib citrate) as a new treatment option for adults with severe rheumatoid arthritis. PMID- 29040712 TI - Signal, Uncertainty, and Conflict in Phylogenomic Data for a Diverse Lineage of Microbial Eukaryotes (Diatoms, Bacillariophyta). AB - Diatoms (Bacillariophyta) are a species-rich group of eukaryotic microbes diverse in morphology, ecology, and metabolism. Previous reconstructions of the diatom phylogeny based on one or a few genes have resulted in inconsistent resolution or low support for critical nodes. We applied phylogenetic paralog pruning techniques to a data set of 94 diatom genomes and transcriptomes to infer perennially difficult species relationships, using concatenation and summary coalescent methods to reconstruct species trees from data sets spanning a wide range of thresholds for taxon and column occupancy in gene alignments. Conflicts between gene and species trees decreased with both increasing taxon occupancy and bootstrap cutoffs applied to gene trees. Concordance between gene and species trees was lowest for short internodes and increased logarithmically with increasing edge length, suggesting that incomplete lineage sorting disproportionately affects species tree inference at short internodes, which are a common feature of the diatom phylogeny. Although species tree topologies were largely consistent across many data treatments, concatenation methods appeared to outperform summary-coalescent methods for sparse alignments. Our results underscore that approaches to species-tree inference based on few loci are likely to be misled by unrepresentative sampling of gene histories, particularly in lineages that may have diversified rapidly. In addition, phylogenomic studies of diatoms, and potentially other hyperdiverse groups, should maximize the number of gene trees with high taxon occupancy, though there is clearly a limit to how many of these genes will be available. PMID- 29040715 TI - The Integrated Pain Team: A Mixed-Methods Evaluation of the Impact of an Embedded Interdisciplinary Pain Care Intervention on Primary Care Team Satisfaction, Confidence, and Perceptions of Care Effectiveness. AB - Objective: To evaluate the impact of the Integrated Pain Team (IPT)-an interdisciplinary chronic pain care intervention embedded in primary care at a large Veterans Affairs health care system. Outcomes evaluated included IPT's impact on the perceived effectiveness of chronic pain care; provider self confidence; and primary care team satisfaction, stress, and burnout. Method: This mixed-methods quality-improvement study employed: 1) qualitative semistructured interviews of 61 primary care providers, other primary care team members, and organizational stakeholders; and 2) a supplementary quantitative survey of 65 providers, comparing those who had referred patients to IPT with those who had not. Results: Most interview participants reported that IPT improved chronic pain care by providing patients with a comprehensive pain treatment plan, educating them about opioid risks, and introducing multimodal treatment options. Interviewed care team members reported improved patient education and fewer emotionally charged contacts from patients. Interviewed providers felt that IPT allowed them to focus their time on health concerns other than pain. However, our supplemental survey found that IPT-utilizing providers were no more confident than other providers in their own pain care skills or in their relationships with chronic pain patients. Conclusions: Integrating an interdisciplinary chronic pain care intervention into primary care can provide needed support to care teams and may improve chronic pain care. Elements of the IPT model identified as important to its effectiveness include its interdisciplinary biopsychosocial approach and attentive patient follow-up. However, enhancing providers' confidence and self efficacy in chronic pain care may require educational and support resources beyond the current IPT model. PMID- 29040713 TI - Human Argonaute3 has slicer activity. AB - Of the four human Argonaute (AGO) paralogs, only AGO2 has been shown to have slicer activity. The others (AGO1, AGO3 and AGO4) have been thought to assemble with microRNAs to form slicer-independent effector complexes that bind target mRNAs and silence gene expression through translational repression and deadenylation but not cleavage. Here, we report that recombinant AGO3 loaded with miR-20a cleaves complementary target RNAs, whereas AGO3 loaded with let-7a, miR 19b or miR-16 does not, indicating that AGO3 has slicer activity but that this activity depends on the guide RNA. Our cleavage assays using chimeric guides revealed the significance of seed sequence for AGO3 activity, which depends specifically on the sequence of the post-seed. Unlike AGO2, target cleavage by AGO3 requires both 5'- and 3'-flanking regions. Our 3.28 A crystal structure shows that AGO3 forms a complete active site mirroring that of AGO2, but not a well-defined nucleic acid-binding channel. These results demonstrating that AGO3 also has slicer activity but with more intricate substrate requirements, explain the observation that AGO3 has retained the necessary catalytic residues throughout its evolution. In addition, our structure inspires the idea that the substrate-binding channel of AGO3 and consequently its cellular function, may be modulated by accessory proteins. PMID- 29040717 TI - Letter: Reconsidering Bone Morphogenetic Protein in the Cervical Spine: Selective Use for Managing Type II Odontoid Fractures in the Elderly. PMID- 29040718 TI - The McConnell's Capsular Arteries and Their Relevance in Endoscopic Endonasal Approach to the Sellar Region. AB - BACKGROUND: The McConnell's capsular arteries (MCCA) were first described in 1953. They consist of medial branches of the cavernous internal carotid artery (ICA) and are divided in anterior and inferior capsular arteries. OBJECTIVE: To highlight the anatomy of the MCCA and its importance in the surgical treatment of tuberculum sellae and planum sphenoidale tumors through an endoscopic endonasal approach. METHODS: Ten cadaveric specimens fixed in formalin and perfused with colored silicone were dissected. Standard endoscopic endonasal transsphenoidal approach to the sellar region was performed. The MCCA were identified and still images were captured for further analysis. We report 1 case to illustrate the importance of the MCCA. RESULTS: The anterior capsular artery, which originates from the anteromedial aspect of the anterior loop of the cavernous ICA and reaches the suprasellar space, was present in 70% of the specimens with no difference between the right and left sides. The anterior capsular artery plays an important role in the vascularization of tuberculum sellae meningiomas. The inferior capsular artery originates from the inferomedial aspect of the cavernous ICA, at its horizontal portion, and reaches the floor and anterior wall of the sella where it anastomoses to branches of the inferior hypophyseal artery. CONCLUSION: The MCCA are key structures when performing an endoscopic endonasal approach for tumors of the sellar and suprasellar regions. PMID- 29040719 TI - The Effect of Insecticidal Stress on Reproductive Output of Susceptible and Field Strains of Aedes aegypti (Diptera: Culicidae). AB - The phenomenon of high egg reproduction when mortality risk rises is common in mosquitoes. However, the phenomenon may vary between insecticide susceptible and field-collected strains, due to the latter's decreased energy allocation in reproduction in the presence of insecticide resistance. In this study, we evaluated the effect of chlorpyrifos (CP) and temephos (TP) exposure on the oviposition and survival of Aedes aegypti (Linnaeus) (Diptera: Culicidae) using a susceptible strain (KHsm) and two field strains (KHly and TNnorth). We also dissected the female mosquitoes of each strain on fifth day after the first blood meal to examine the total number of eggs produced. Neither CP nor TP exhibited oviposition deterrent against female mosquitoes of any of the three strains, as the females did not show decreased reproduction activity on the insecticide treated sites. Of the two insecticides tested, only CP had an adulticidal effect on Ae. aegypti. High mortality was recorded in KHsm after contacting the CP treated oviposition sites on day 4. Before death, KHsm mosquitoes oviposited significantly more eggs compared to the two field strains. However, the difference of total egg production between susceptible and field-collected strains was subtle. Thus, the decreased reproductive output in field-collected strains might not be directly linked to energy and resource allocation. In this respect, we should consider the possible involvement of biogenic amines in the egg retention in field-collected strains when mortality risk rises. The phenomenon was not observed in nonadulticidal TP treatment. PMID- 29040720 TI - Genome-wide prediction of minor-groove electrostatic potential enables biophysical modeling of protein-DNA binding. AB - Protein-DNA binding is a fundamental component of gene regulatory processes, but it is still not completely understood how proteins recognize their target sites in the genome. Besides hydrogen bonding in the major groove (base readout), proteins recognize minor-groove geometry using positively charged amino acids (shape readout). The underlying mechanism of DNA shape readout involves the correlation between minor-groove width and electrostatic potential (EP). To probe this biophysical effect directly, rather than using minor-groove width as an indirect measure for shape readout, we developed a methodology, DNAphi, for predicting EP in the minor groove and confirmed the direct role of EP in protein DNA binding using massive sequencing data. The DNAphi method uses a sliding window approach to mine results from non-linear Poisson-Boltzmann (NLPB) calculations on DNA structures derived from all-atom Monte Carlo simulations. We validated this approach, which only requires nucleotide sequence as input, based on direct comparison with NLPB calculations for available crystal structures. Using statistical machine-learning approaches, we showed that adding EP as a biophysical feature can improve the predictive power of quantitative binding specificity models across 27 transcription factor families. High-throughput prediction of EP offers a novel way to integrate biophysical and genomic studies of protein-DNA binding. PMID- 29040722 TI - Head and Neck: Skull Base Imaging. AB - There are a myriad of head and neck pathologies that extend from the extracranial to the intracranial compartment, traversing the skull base, and knowledge of the imaging appearance of this pathology is critical to practicing neurosurgeons. This article reviews some of the important inflammatory or acquired head and neck pathology along the skull base, neoplastic skull base lesions, and the intracranial extension of head and neck malignancy. Focus will be on the relevant anatomy, appropriate imaging protocols to evaluate these processes, as well as the differentiating imaging findings on computed tomography and magnetic resonance imaging. PMID- 29040721 TI - Ratio of Endogenous Secretory Receptor for Advanced Glycation End Products to Pentosidine Predicts Fractures in Men. AB - Context: Although the endogenous secretory receptor for advanced glycation end products (esRAGE) has been associated with reduced activity of pentosidine (PEN), the association between PEN, esRAGE, and fracture is poorly understood. Objectives: To evaluate the ability of serum PEN and esRAGE levels to predict fragility fractures. Methods: A cohort of 1285 Japanese men aged >=65 years old participated in a 2007 to 2008 Fujiwara-kyo Osteoporosis Risk in Men study baseline survey, as part of the Fujiwara-kyo prospective cohort study. Those participants provided information regarding any fractures they experienced during 5 years. The baseline bone mineral density (BMD) was measured. Hazard ratios (HRs) per one standard deviation increase of log-transformed serum levels of PEN, esRAGE, and esRAGE-to-PEN ratio were estimated at baseline. Results: Twenty-five participating men suffered incident clinical fragility fractures. The crude HRs (95% confidence interval) for PEN, esRAGE, and esRAGE-to-PEN ratio were 1.56 (1.05 to 2.31), 0.79 (0.54 to 1.15), and 0.65 (0.44 to 0.95), respectively. HRs for PEN adjusted for age, esRAGE, and T score of BMD at femoral neck (FN) and lumbar spine (LS) were 1.48 (1.00 to 2.18) and 1.51 (1.03 to 2.21), respectively. The marginal significance adjusted for BMD at FN and the statistical significance adjusted for BMD at LS were attenuated after additional adjustment for glycated hemoglobin A1c level (P = 0.111 and 0.072, respectively). The HRs for esRAGE-to PEN ratio adjusted for age, glycated hemoglobin A1c, and T-score of BMD at FN and LS were 0.67 (0.45 to 0.98) and 0.64 (0.43 to 0.95). Conclusions: Higher esRAGE to-PEN ratios were associated with decreased risk of fragility fractures independent of BMD among elderly Japanese men. PMID- 29040724 TI - ADDITIONAL CHARACTERISATION OF THE THERMAL NEUTRON PILE AT THE NATIONAL PHYSICAL LABORATORY, UK. AB - As part of its wide-ranging neutron metrology capabilities, the National Physical Laboratory in the UK has a thermal neutron facility in which accelerator-produced neutrons are moderated within a large assembly or pile of graphite bricks. The neutron field has previously been well characterised in terms of the fluence rate and energy spectrum at various irradiation positions. However, recent changes to the structure (e.g. enlarging the central irradiation cavity) have prompted a renewal and extension of this work. We have also used Monte Carlo modelling to improve our understanding of the pile's performance. PMID- 29040723 TI - Resting-state functional connectivity in combat veterans suffering from impulsive aggression. AB - Impulsive aggression is common among military personnel after deployment and may arise because of impaired top-down regulation of the amygdala by prefrontal regions. This study sought to further explore this hypothesis via resting-state functional connectivity analyses in impulsively aggressive combat veterans. Male combat veterans with (n = 28) and without (n = 30) impulsive aggression problems underwent resting-state functional magnetic resonance imaging. Functional connectivity analyses were conducted with the following seed-regions: basolateral amygdala (BLA), centromedial amygdala, anterior cingulate cortex (ACC), and anterior insular cortex (AIC). Regions-of-interest analyses focused on the orbitofrontal cortex and periaqueductal gray, and yielded no significant results. In exploratory cluster analyses, we observed reduced functional connectivity between the (bilateral) BLA and left dorsolateral prefrontal cortex in the impulsive aggression group, relative to combat controls. This finding indicates that combat-related impulsive aggression may be marked by weakened functional connectivity between the amygdala and prefrontal regions, already in the absence of explicit emotional stimuli. Group differences in functional connectivity were also observed between the (bilateral) ACC and left cuneus, which may be related to heightened vigilance to potentially threatening visual cues, as well as between the left AIC and right temporal pole, possibly related to negative memory association in impulsive aggression. PMID- 29040726 TI - Interhospital Transfer of Neurosurgical Patients. PMID- 29040725 TI - Protein S-Nitrosylation Regulates Xylem Vessel Cell Differentiation in Arabidopsis. AB - Post-translational modifications of proteins have important roles in the regulation of protein activity. One such modification, S-nitrosylation, involves the covalent binding of nitric oxide (NO)-related species to a cysteine residue. Recent work showed that protein S-nitrosylation has crucial functions in plant development and environmental responses. In the present study, we investigated the importance of protein S-nitrosylation for xylem vessel cell differentiation using a forward genetics approach. We performed ethyl methanesulfonate mutagenesis of a transgenic Arabidopsis 35S::VND7-VP16-GR line in which the activity of VASCULAR-RELATED NAC-DOMAIN7 (VND7), a key transcription factor involved in xylem vessel cell differentiation, can be induced post translationally by glucocorticoid treatment, with the goal of obtaining suppressor mutants that failed to differentiate ectopic xylem vessel cells; we named these mutants suppressor of ectopic vessel cell differentiation induced by VND7 (seiv) mutants. We found the seiv1 mutant to be a recessive mutant in which ectopic xylem cell differentiation was inhibited, especially in aboveground organs. In seiv1 mutants, a single nucleic acid substitution (G to A) leading to an amino acid substitution (E36K) was present in the gene encoding S NITROSOGLUTATHIONE REDUCTASE 1 (GSNOR1), which regulates the turnover of the natural NO donor, S-nitrosoglutathione. An in vitro S-nitrosylation assay revealed that VND7 can be S-nitrosylated at Cys264 and Cys320 located near the transactivation activity-related domains, which were shown to be important for transactivation activity of VND7 by transient reporter assay. Our results suggest crucial roles for GSNOR1-regulated protein S-nitrosylation in xylem vessel cell differentiation, partly through the post-translational modification of VND7. PMID- 29040728 TI - LETTER TO THE EDITOR: COMMENTS ON "ASSESSMENT OF RADIATION DOSE AND EXCESSIVE LIFE-TIME CANCER RISK FROM THE BUNAIR GRANITE, NORTHERN PAKISTAN". PMID- 29040727 TI - Whole-Genome Sequencing of African Dogs Provides Insights into Adaptations against Tropical Parasites. AB - Natural selection in domestic dogs is of great interest in evolutionary biology since dogs have migrated to every inhabited continent of the world alongside humans, and adapted to diverse environments. Here, we explored their demographic history and genetic basis of adaptation to the tropical African environment using whole genome analyses of 19 African indigenous dogs from Nigeria. Demographic analysis suggests that the ancestors of these dogs migrated into Africa from Eurasia 14,000 years ago and underwent a severe founder effect before population expansion. Admixture analysis further reveals that African dog genomes contain about 1.88-3.50% introgression from African golden wolves (Canis anthus). Population genetic analysis identifies 50 positively selected genes linked with immunity, angiogenesis, ultraviolet protection, as well as insulin secretion and sensitivity that may contribute to adaptation to tropical conditions. One of the positively selected genes, adhesion G protein-coupled receptor E1 (ADGRE1), has also been found to be association with severe malaria resistance in African human populations. Functional assessments showed that ADGRE1 provides protective host defense against Plasmodium infections. This result, together with the fact that the inflammatory response to canine babesiosis is similar to complicated falciparum malaria in humans, support the dogs as a model for the study of malaria control and treatment. PMID- 29040730 TI - Diurnal Temperature Range and Chikungunya Virus Infection in Invasive Mosquito Vectors. AB - Climate strongly influences the geographic distribution and timing of mosquito borne disease outbreaks. Environmental temperature affects phenotypic traits of mosquitoes including vector competence for arboviruses mediated by changes in infection, extrinsic incubation period and in rates of transmission. Most experiments, however, are done at constant temperatures. In nature, mosquitoes are more likely to experience daily fluctuations in temperature. Here we compare disseminated infection (leg infection) and saliva infection of Aedes aegypti (L.) (Diptera: Culicidae) and Aedes albopictus (Skuse) (Diptera: Culicidae) from Florida following oral exposure to an Asian genotype of chikungunya virus emergent in the Americas. We evaluated experimentally the effect of variable temperature regimens on disseminated infection and saliva infection of these Aedes species. Each of three temperature regimes had approximately the same average temperature (27-28 degrees C), but differed in the magnitude of the diurnal temperature range (DTR). The large DTR was 8.0 degrees C (range 23-31 degrees C) and the small DTR was 4.0 degrees C (range 26-30 degrees C) which approximate ranges in different locations of Florida during July-October when risk of transmission is highest. The constant temperature was set at 27 degrees C. Testing three geographic populations of each mosquito species, significant effects on disseminated infection were detected for an interaction between temperature regime and geographic population for both Ae. aegypti and Ae. albopictus. There were no significant treatment effects of temperature, geographic population, or temperature by geographic population interaction on saliva infection for either mosquito species. Constant temperature resulted in a higher viral load in the saliva of Ae. albopictus, but not Ae. aegypti, compared to conditions where the temperature fluctuated. PMID- 29040731 TI - Neurocysticercosis versus disseminated intracranial tuberculoma. PMID- 29040729 TI - CsrA maximizes expression of the AcrAB multidrug resistance transporter. AB - Carbon Storage Regulator A (CsrA) is an RNA binding protein that acts as a global regulator of diverse genes. Using a combination of genetics and biochemistry we show that CsrA binds directly to the 5' end of the transcript encoding AcrAB. Deletion of csrA or mutagenesis of the CsrA binding sites reduced production of both AcrA and AcrB. Nucleotide substitutions at the 5' UTR of acrA mRNA that could potentially weaken the inhibitory RNA secondary structure, allow for more efficient translation of the AcrAB proteins. Given the role of AcrAB-TolC in multi-drug efflux we suggest that CsrA is a potential drug target. PMID- 29040732 TI - Evidence-Based Pain Medicine: Inconvenient Truths. PMID- 29040733 TI - Decreased incidence of gout in diabetic patients using pioglitazone. AB - Objective: The incidence and prevalence of gout are increasing, but the management is poor. Considering the increased prevalence of gout in the diabetic population, this study evaluated the effects of pioglitazone, an insulin resistance inhibitor, on the incidence of gout in the diabetic population. Methods: We used data from the National Health Insurance program in Taiwan. The pioglitazone cohort contained 30 100 patients and each patient was age and sex matched with three non-pioglitazone users who were randomly selected from the diabetic population. Cox proportional hazards regression analysis was conducted to estimate the effects of pioglitazone on the incidence of gout in the diabetic population. Results: The incidence of gout was significantly lower in pioglitazone users than in non-pioglitazone users [adjusted hazard ratio (aHR) 0.81 (95% CI 0.78, 0.85)]. The HR for the incidence of gout was lower in both male [aHR 0.80 (95% CI 0.75, 0.85)] and female [aHR 0.83 (95% CI 0.78, 0.88)] pioglitazone users than in non-pioglitazone users. An analysis of three age groups (<40, 40-59 and ?60 years) revealed that the HRs of both the 40-59 years [aHR 0.78 (95% CI 0.73, 0.83)] and the ?60 years [aHR 0.85 (95% CI 0.80, 0.91)] age groups were significantly lower among pioglitazone users than non pioglitazone users. Conclusion: Compared with the non-pioglitazone users, the incidence of gout in the diabetic population using pioglitazone was less. PMID- 29040734 TI - GEOMETRICAL EFFICIENCY OF PLANE-PARALLEL IONIZATION CHAMBERS IN PROTON SCANNING BEAM. AB - For commissioning of a proton therapy unit depth dose distributions must be determined and introduced into the Treatment Planning System. In pencil beam scanning (PBS) technique, integral depth dose (IDD) acquisition should be performed with detector large enough to ensure entire beam laterally broadened by scattered and secondary contributions. The purpose of this article is to quantify, using measurements and Monte Carlo transport calculations, the ionization chamber's (IC) geometrical efficiency versus the chamber radius and proton beam energy. The geometrical efficiency of 0.99 was determined for energies up to 160 and 190 MeV for 4.08 and 6 cm radius IC. Much lower geometrical efficiency was obtained for the energy of 226.08 MeV and results in charge loss of 5.8 and 3.6%, respectively. Relative IDD differences between IC 4.08 and 6 cm in radius increase with proton energy and reach 2.4% at the mid range depth for 226.08 MeV. PMID- 29040735 TI - Kyrle's disease. PMID- 29040736 TI - Social media in medicine: a game changer? PMID- 29040737 TI - Calcium-driven DNA synthesis by a high-fidelity DNA polymerase. AB - Divalent metal ions, usually Mg2+, are required for both DNA synthesis and proofreading functions by DNA polymerases (DNA Pol). Although used as a non reactive cofactor substitute for binding and crystallographic studies, Ca2+ supports DNA polymerization by only one DNA Pol, Dpo4. Here, we explore whether Ca2+-driven catalysis might apply to high-fidelity (HiFi) family B DNA Pols. The consequences of replacing Mg2+ by Ca2+ on base pairing at the polymerase active site as well as the editing of terminal nucleotides at the exonuclease active site of the archaeal Pyrococcus abyssi DNA Pol (PabPolB) are characterized and compared to other (families B, A, Y, X, D) DNA Pols. Based on primer extension assays, steady-state kinetics and ion-chased experiments, we demonstrate that Ca2+ (and other metal ions) activates DNA synthesis by PabPolB. While showing a slower rate of phosphodiester bond formation, nucleotide selectivity is improved over that of Mg2+. Further mechanistic studies show that the affinities for primer/template are higher in the presence of Ca2+ and reinforced by a correct incoming nucleotide. Conversely, no exonuclease degradation of the terminal nucleotides occurs with Ca2+. Evolutionary and mechanistic insights among DNA Pols are thus discussed. PMID- 29040739 TI - Papaya CpEIN3a and CpNAC2 Co-operatively Regulate Carotenoid Biosynthesis-Related Genes CpPDS2/4, CpLCY-e and CpCHY-b During Fruit Ripening. AB - Papaya is an important tropical fruit with a rich source of carotenoids. The ripening of papaya is a physiological and metabolic process with remarkable changes including accumulation of carotenoids, which depends primarily on the action of ethylene. Ethylene response is mediated by a transcriptional cascade involving the transcription factor families of EIN3/EILs and ERFs. Although ERF members have been reported to control carotenoid production in Arabidopsis and tomato, whether EIN3/EILs are also involved in carotenoid biosynthesis during fruit ripening remains unclear. In this work, two EIN3 genes from papaya fruit, namely CpEIN3a and CpEIN3b, were studied, of which CpEIN3a was increased during fruit ripening, concomitant with the increase of transcripts of carotenoid biosynthesis-related genes including CpPDS2/4, CpZDS, CpLCY-e and CpCHY-b, and carotenoid content. Electrophoretic mobility shift assays (EMSAs) and transient expression analyses revealed that CpEIN3a was able to bind to the promoters of CpPDS4 and CpCHY-b, and promoted their transcription. Protein-protein interaction assays indicated that CpEIN3a physically interacted with another transcription factor CpNAC2, which acted as a transcriptional activator of CpPDS2/4, CpZDS, CpLCY-e and CpCHY-b by directly binding to their promoters. More importantly, the transcriptional activation abilities of CpPDS2/4, CpLCY-e and CpCHY-b were more pronounced following their interaction. Collectively, our findings suggest that CpEIN3a interacts with CpNAC2 and, individually or co-operatively, activates the transcription of a subset of carotenoid biosynthesis-related genes, providing new insights into the regulatory networks of carotenoid biosynthesis during papaya fruit ripening. PMID- 29040738 TI - NF90-NF45 is a selective RNA chaperone that rearranges viral and cellular riboswitches: biochemical analysis of a virus host factor activity. AB - The heterodimer NF90-NF45 is an RNA-binding protein complex that modulates the expression of various cellular mRNAs on the post-transcriptional level. Furthermore, it acts as a host factor that supports the replication of several RNA viruses. The molecular mechanisms underlying these activities have yet to be elucidated. Recently, we showed that the RNA-binding capabilities and binding specificity of NF90 considerably improves when it forms a complex with NF45. Here, we demonstrate that NF90 has a substrate-selective RNA chaperone activity (RCA) involving RNA annealing and strand displacement activities. The mechanism of the NF90-catalyzed RNA annealing was elucidated to comprise a combination of 'matchmaking' and compensation of repulsive charges, which finally results in the population of dsRNA products. Heterodimer formation with NF45 enhances 'matchmaking' of complementary ssRNAs and substantially increases the efficiency of NF90's RCA. During investigations of the relevance of the NF90-NF45 RCA, the complex was shown to stimulate the first step in the RNA replication process of hepatitis C virus (HCV) in vitro and to stabilize a regulatory element within the mRNA of vascular endothelial growth factor (VEGF) by protein-guided changes of the RNAs' structures. Thus, our study reveals how the intrinsic properties of an RNA-binding protein determine its biological activities. PMID- 29040740 TI - Studying Developmental Psychopathology Related to Psychotic Disorders-Challenges and Paradigms in Human Studies. PMID- 29040741 TI - Identification of new protein-protein and protein-DNA interactions linked with wood formation in Populus trichocarpa. AB - Cellular processes, such as signal transduction and cell wall deposition, are organized by macromolecule interactions. Experimentally determined protein protein interactions (PPIs) and protein-DNA interactions (PDIs) relevant to woody plant development are sparse. To begin to develop a Populus trichocarpa Torr. & A. Gray wood interactome, we applied the yeast-two-hybrid (Y2H) assay in different ways to enable the discovery of novel PPIs and connected networks. We first cloned open reading frames (ORFs) for 361 genes markedly upregulated in secondary xylem compared with secondary phloem and performed a binary Y2H screen with these proteins. By screening a xylem cDNA library for interactors of a subset of these proteins and then recapitulating the process by using a subset of the interactors as baits, we ultimately identified 165 PPIs involving 162 different ORFs. Thirty-eight transcription factors (TFs) included in our collection of P. trichocarpa wood ORFs were used in a Y1H screen for binding to promoter regions of three genes involved in lignin biosynthesis resulting in 40 PDIs involving 20 different TFs. The network incorporating both the PPIs and PDIs included 14 connected subnetworks, with the largest having 132 members. Protein protein interactions and PDIs validated previous reports and also identified new candidate wood formation proteins and modules through their interactions with proteins and promoters known to be involved in secondary cell wall synthesis. Selected examples are discussed including a PPI between Mps one binder (MOB1) and a mitogen-activated protein kinase kinase kinase kinase (M4K) that was further characterized by assays confirming the PPI as well as its effect on subcellular localization. Mapping of published transcriptomic data showing developmentally detailed expression patterns across a secondary stem onto the network supported that the PPIs and PDIs are relevant to wood formation, and also illustrated that wood-associated interactions involve gene products that are not upregulated in secondary xylem. PMID- 29040742 TI - Intussusception Rate Among Under-Five-Children Before Introduction of Rotavirus Vaccine in North India. AB - Background: Baseline data on intussusception are needed to compare the intussusception rates following introduction of rotavirus vaccine. Methods: A hospital-based bidirectional surveillance (retrospective from 2009 to 2012; and prospective from 2013 to 2015) was set up in a tertiary care hospital in Chandigarh, India, to enrol children <5 years of age admitted with intussusception as per Brighton's classification, to estimate the hospital admission rate. Incidence of intussusception among infants and children <5 years of age was also estimated. Results: A total of 277 intussusception cases (96 retrospective; 181 prospective) were reported. Majority of cases were males (69.7%) and infants (72%). Median age at diagnosis was 10 months (interquartile range 6-12 months). Nearly 62% cases were treated surgically and 33% radiologically. Incidence was estimated to be 20/100 000 infants, and 5/100 000 children <5 years of age per year, in Chandigarh. Conclusion: Intussusception surveillance system provided background hospital admission and incidence rate before rotavirus vaccine introduction in North India. PMID- 29040743 TI - Anger-sensitive networks: characterizing neural systems recruited during aggressive social interactions using data-driven analysis. AB - Social neuroscience uses increasingly complex paradigms to improve ecological validity, as investigating aggressive interactions with functional magnetic resonance imaging (fMRI). Standard analyses for fMRI data typically use general linear models (GLM), which require a priori models of task effects on neural processes. These may inadequately model non-stimulus-locked or temporally overlapping cognitive processes, as mentalizing about other agents. We used the data-driven approach of independent component analysis (ICA) to investigate neural processes involved in a competitive interaction. Participants were confronted with an angry-looking opponent while having to anticipate the trial outcome and the opponent's behaviour. We show that several spatially distinctive neural networks with associated temporal dynamics were modulated by the opponent's facial expression. These results dovetail and extend the main effects observed in the GLM analysis of the same data. Additionally, the ICA approach identified effects of the experimental condition on neural systems during inter trial intervals. We demonstrate that cognitive processes during aggressive interactions are poorly modelled by simple stimulus onset/duration variables and instead have more complex temporal dynamics. This highlights the utility of using data-driven analyses to elucidate the distinct cognitive processes recruited during complex social paradigms. PMID- 29040744 TI - Tobacco exposure and sleep disturbance in 498 208 UK Biobank participants. AB - Background: The prevalence of sleep disturbance is high and increasing. The study investigated whether active, former and passive smoking were associated with sleep disturbance. Methods: This cross-sectional study used data from the UK Biobank: a cohort study of 502 655 participants, of whom 498 208 provided self reported data on smoking and sleep characteristics. Multivariable multinomial and logistic regression models were used to examine the associations between smoking and sleep disturbance. Results: Long-sleep duration (>9 h) was more common among current smokers [odds ratio (OR): 1.47; 95% confidence interval (CI): 1.17-1.85; probability value (P) = 0.001] than never smokers, especially heavy (>20/day) smokers (OR: 2.85; 95% CI: 1.66-4.89; P < 0.001). Former heavy (>20/day) smokers were also more likely to report short (<6 h) sleep duration (OR: 1.41; 95% CI: 1.25-1.60; P < 0.001), long-sleep duration (OR: 1.99; 95% CI: 1.47-2.71; P < 0.001) and sleeplessness (OR: 1.47; 95% CI: 1.38-1.57; P < 0.001) than never smokers. Among never smokers, those who lived with more than one smoker had higher odds of long-sleep duration than those not cohabitating with a smoker (OR: 2.71; 95% CI: 1.26-5.82; P = 0.011). Conclusions: Active and passive exposure to high levels of tobacco smoke are associated with sleep disturbance. Existing global tobacco control interventions need to be enforced. PMID- 29040745 TI - The impact of shift work on sleep quality among nurses. AB - Background: Shift work is common among nurses, and it is known to be a workplace hazard as it may cause poor sleep quality, which can impact adversely on the health and safety of nurses and their patients. Aims: To explore factors that contribute to poor sleep quality in shift working nurses (SWNs) compared with non shift working nurses (NSWNs) and to assess the awareness of support from occupational health. Methods: Cross-sectional study of nurses at a National Health Service (NHS) foundation trust, February to March 2016. Data were collected via an online questionnaire. Sleep quality was measured using the Pittsburgh Sleep Quality Index. Results: Eight hundred and eighty-eight nurses participated; the response rate was 34%. The prevalence of poor sleep quality was 78% (95% confidence interval [CI] 0.748-0.813) in the SWNs, compared with 59% (95% CI 0.503-0.678) in the NSWNs. There was a mean sleep quality score difference of 1.58 between the SWNs and the NSWNs, which was statistically significant, P < 0.001 (95% CI 0.913-2.246). Undertaking shift work was the only significant association with poor sleep quality when controlling for the other variables of age, gender and number of years worked, odds ratio 0.410, P < 0.001 (95% CI 0.265-0.634). Conclusions: There was a high prevalence of poor sleep quality in both SWNs and NSWNs. This was persistent despite few nurses working in rotating shifts or shifts with short recovery time. PMID- 29040746 TI - CHARACTERIZATION OF AN IN-HOUSE DEVELOPED MULTI-CYLINDRICAL MODERATOR NEUTRON SPECTROMETER. AB - This article describes the characterization of an in-house developed multi cylindrical moderator neutron spectrometer, which consists of a cylindrical 3He proportional counter and cylindrical moderator shells of different sizes. The response matrix of the spectrometer was calculated by Monte Carlo simulations for neutron energies from 1 * 10-8 to 10 MeV and verified with measurements in 0.144 MeV, 1.2 MeV and 241AmBe neutron standard fields. Influence of scattered neutrons was properly eliminated from the measured response using the shadow cone technique. The calculated and measured responses were in good agreement in most cases. Differences were <10% for all moderated counter configurations, while larger deviations were observed for the bare counter configuration. The performance of the neutron spectrometer in terms of spectrum unfolding was verified in the 241AmBe neutron standard field, showing reliable neutron spectrum and fluence rate in the energy range up to 10 MeV as investigated in this work. PMID- 29040747 TI - Factors associated with smoking behaviour change in UK military personnel. AB - Background: Research in the UK civilian population suggests that poor mental health outcomes are associated with smoking behaviour. In the UK military population, smoking cessation is associated with deployment in the reserve forces. However, little is known about the links between mental health outcomes and smoking initiation and cessation in the UK military. Aims: The aim of this longitudinal study was to examine change in mental health and military factors associated with smoking initiation and cessation in a representative sample of UK military personnel. Methods: Data were collected between 2003 and 2009; 5138 regular and reserve military personnel were included in the analyses. Results: The results showed that smoking initiation was associated with symptoms of psychological distress, symptoms of probable post-traumatic stress disorder (PTSD), relationship breakdown and deployment. Conclusions: These findings are consistent with existing research in civilian populations showing links between poor mental health and smoking behaviour. Furthermore, our finding that deployment is associated with smoking initiation is also in line with research from the US military and UK reserves. PMID- 29040748 TI - Primary angiitis of the central nervous system-a territory about to be discovered. PMID- 29040749 TI - Cdc42 regulates the cellular localization of Cdc42ep1 in controlling neural crest cell migration. AB - The member of Rho family of small GTPases Cdc42 plays important and conserved roles in cell polarity and motility. The Cdc42ep family proteins have been identified to bind to Cdc42, yet how they interact with Cdc42 to regulate cell migration remains to be elucidated. In this study, we focus on Cdc42ep1, which is expressed predominantly in the highly migratory neural crest cells in frog embryos. Through morpholino-mediated knockdown, we show that Cdc42ep1 is required for the migration of cranial neural crest cells. Loss of Cdc42ep1 leads to rounder cell shapes and the formation of membrane blebs, consistent with the observed disruption in actin organization and focal adhesion alignment. As a result, Cdc42ep1 is critical for neural crest cells to apply traction forces at the correct place to migrate efficiently. We further show that Cdc42ep1 is localized to two areas in neural crest cells: in membrane protrusions together with Cdc42 and in perinuclear patches where Cdc42 is absent. Cdc42 directly interacts with Cdc42ep1 (through the CRIB domain) and changes in Cdc42 level shift the distribution of Cdc42ep1 between these two subcellular locations, controlling the formation of membrane protrusions and directionality of migration as a consequence. These results suggest that Cdc42ep1 elaborates Cdc42 activity in neural crest cells to promote their efficient migration. PMID- 29040750 TI - Cool, callous and in control: superior inhibitory control in frequent players of video games with violent content. AB - Research on the effects of media violence exposure has shown robust associations among violent media exposure, increased aggressive behavior, and decreased empathy. Preliminary research indicates that frequent players of violent video games may have differences in emotional and cognitive processes compared to infrequent or nonplayers, yet research examining the amount and content of game play and the relation of these factors with affective and cognitive outcomes is limited. The present study measured neural correlates of response inhibition in the context of implicit attention to emotion, and how these factors are related to empathic responding in frequent and infrequent players of video games with graphically violent content. Participants completed a self-report measure of empathy as well as an affective stop-signal task that measured implicit attention to emotion and response inhibition during electroencephalography. Frequent players had lower levels of empathy as well as a reduction in brain activity as indicated by P100 and N200/P300 event related potentials. Reduced P100 amplitude evoked by happy facial expressions was observed in frequent players compared to infrequent players, and this effect was moderated by empathy, such that low levels of empathy further reduced P100 amplitudes for happy facial expressions for frequent players compared to infrequent players. Compared to infrequent players, frequent players had reduced N200/P300 amplitude during response inhibition, indicating less neural resources were recruited to inhibit behavior. Results from the present study illustrate that chronic exposure to violent video games modulates empathy and related neural correlates associated with affect and cognition. PMID- 29040751 TI - EpiDenovo: a platform for linking regulatory de novo mutations to developmental epigenetics and diseases. AB - De novo mutations (DNMs) have been shown to be a major cause of severe early onset genetic disorders such as autism spectrum disorder and intellectual disability. Over one million DNMs have been identified in developmental disorders by next generation sequencing, but linking these DNMs to the genes that they impact remains a challenge, as the majority of them are embedded in non-coding regions. As most developmental diseases occur in the early stages of development or during childhood, it is crucial to clarify the details of epigenetic regulation in early development in order to interpret the mechanisms underlying developmental disorders. Here, we develop EpiDenovo, a database that is freely available at http://www.epidenovo.biols.ac.cn/, and which provides the associations between embryonic epigenomes and DNMs in developmental disorders, including several neuropsychiatric disorders and congenital heart disease. EpiDenovo provides an easy-to-use web interface allowing users rapidly to find the epigenetic signatures of DNMs and the expression patterns of the genes that they regulate during embryonic development. In summary, EpiDenovo is a useful resource for selecting candidate genes for further functional studies in embryonic development, and for investigating regulatory DNMs as well as other genetic variants causing or underlying developmental disorders. PMID- 29040752 TI - Expansion of the dehydrin gene family in the Pinaceae is associated with considerable structural diversity and drought-responsive expression. AB - Temperatures are expected to increase over the next century in all terrestrial biomes and particularly in boreal forests, where drought-induced mortality has been predicted to rise. Genomics research is helping to develop hypotheses regarding the molecular basis of drought tolerance and recent work proposed that the osmo-protecting dehydrin proteins have undergone a clade-specific expansion in the Pinaceae, a major group of conifer trees. The objectives of this study were to identify all of the putative members of the gene family, trace their evolutionary origin, examine their structural diversity and test for drought responsive expression. We identified 41 complete dehydrin coding sequences in Picea glauca, which is four times more than most angiosperms studied to date, and more than in pines. Phylogenetic reconstructions indicated that the family has undergone an expansion in conifers, with parallel evolution implicating the sporadic resurgence of certain amino acid sequence motifs, and a major duplication giving rise to a clade specific to the Pinaceae. A variety of plant dehydrin structures were identified with variable numbers of the A-, E-, S- and K segments and an N-terminal (N1) amino acid motif including assemblages specific to conifers. The expression of several of the spruce dehydrins was tissue preferential under non-stressful conditions or responded to water stress after 7 18 days without watering, reflecting changes in osmotic potential. We found that dehydrins with N1 K2 and N1 AESK2 sequences were the most responsive to the lack of water. Together, the family expansion, drought-responsive expression and structural diversification involving loss and gain of amino acid motifs suggests that subfunctionalization has driven the diversification seen among dehydrin gene duplicates. Our findings clearly indicate that dehydrins represent a large family of candidate genes for drought tolerance in spruces and in other Pinaceae that may underpin adaptability in spatially and temporally variable environments. PMID- 29040753 TI - What is the best treatment target in axial spondyloarthritis: tumour necrosis factor alpha, interleukin 17, or both? AB - After about 15 years of experience with the TNF blockers as the only effective drugs in axial spondyloarthritis patients who fail conventional treatment, for the first time we see now that another targeted therapy, the inhibition of IL-17, is also effective. By indirect comparison of the treatment effect between the two types of drugs, efficacy seems to be on a similar level. This raises quite a few important questions that are related to both pathogenesis and treatment strategies for which the answers are currently largely unknown, but would be of great relevance for optimizing therapies. In this article, we discuss these questions and ways in which such questions could be answered. PMID- 29040755 TI - The Omics Dashboard for interactive exploration of gene-expression data. AB - The Omics Dashboard is a software tool for interactive exploration and analysis of gene-expression datasets. The Omics Dashboard is organized as a hierarchy of cellular systems. At the highest level of the hierarchy the Dashboard contains graphical panels depicting systems such as biosynthesis, energy metabolism, regulation and central dogma. Each of those panels contains a series of X-Y plots depicting expression levels of subsystems of that panel, e.g. subsystems within the central dogma panel include transcription, translation and protein maturation and folding. The Dashboard presents a visual read-out of the expression status of cellular systems to facilitate a rapid top-down user survey of how all cellular systems are responding to a given stimulus, and to enable the user to quickly view the responses of genes within specific systems of interest. Although the Dashboard is complementary to traditional statistical methods for analysis of gene-expression data, we show how it can detect changes in gene expression that statistical techniques may overlook. We present the capabilities of the Dashboard using two case studies: the analysis of lipid production for the marine alga Thalassiosira pseudonana, and an investigation of a shift from anaerobic to aerobic growth for the bacterium Escherichia coli. PMID- 29040756 TI - TCDD, FICZ, and Other High Affinity AhR Ligands Dose-Dependently Determine the Fate of CD4+ T Cell Differentiation. AB - FICZ and TCDD, two high-affinity AhR ligands, are reported to have opposite effects on T cell differentiation with TCDD inducing regulatory T cells and FICZ inducing Th17 cells. This dichotomy has been attributed to ligand-intrinsic differences in AhR activation, although differences in sensitivity to metabolism complicate the issue. TCDD is resistant to AhR-induced metabolism and produces sustained AhR activation following a single dose in the MUg/kg range, whereas FICZ is rapidly metabolized and AhR activation is transient. Nonetheless, prior studies comparing FICZ with TCDD have generally used the same 10-50 MUg/kg dose range, and thus the two ligands would not equivalently activate AhR. We hypothesized that high-affinity AhR ligands can promote CD4+ T cell differentiation into both Th17 cells and Tregs, with fate depending on the extent and duration of AhR activation. We compared the immunosuppressive effects of TCDD and FICZ, along with two other rapidly metabolized ligands (ITE and 11-Cl-BBQ) in an acute alloresponse mouse model. The dose and timing of administration of each ligand was optimized for TCDD-equivalent Cyp1a1 induction. When optimized, all of the ligands suppressed the alloresponse in conjunction with the induction of Foxp3- Tr1 cells on day 2 and the expansion of natural Foxp3+ Tregs on day 10. In contrast, a low dose of FICZ induced transient expression of Cyp1a1 and did not induce Tregs or suppress the alloresponse but enhanced IL-17 production. Interestingly, low doses of the other ligands, including TCDD, also increased IL 17 production on day 10. These findings support the conclusion that the dose and the duration of AhR activation by high-affinity AhR ligands are the primary factors driving the fate of T cell differentiation. PMID- 29040757 TI - Stomatal oscillations in olive trees: analysis and methodological implications. AB - Stomatal oscillations have long been disregarded in the literature despite the fact that the phenomenon has been described for a variety of plant species. This study aims to characterize the occurrence of oscillations in olive trees (Olea europaea L.) under different growing conditions and its methodological implications. Three experiments with young potted olives and one with large field grown trees were performed. Sap flow measurements were always used to monitor the occurrence of oscillations, with additional determinations of trunk diameter variations and leaf-level stomatal conductance, photosynthesis and water potential also conducted in some cases. Strong oscillations with periods of 30-60 min were generally observed for young trees, while large field trees rarely showed significant oscillations. Severe water stress led to the disappearance of oscillations, but moderate water deficits occasionally promoted them. Simultaneous oscillations were also found for leaf stomatal conductance, leaf photosynthesis and trunk diameter, with the former presenting the highest amplitudes. The strong oscillations found in young potted olive trees preclude the use of infrequent measurements of stomatal conductance and related variables to characterize differences between trees of different cultivars or subjected to different experimental treatments. Under these circumstances, our results suggest that reliable estimates could be obtained using measurement intervals below 15 min. PMID- 29040754 TI - Development of unique cytotoxic chimeric antigen receptors based on human scFv targeting B7H6. AB - As a stress-inducible natural killer (NK) cell ligand, B7H6 plays a role in innate tumor immunosurveillance and is a fairly tumor selective marker expressed on a variety of solid and hematologic cancer cells. Here, we describe the isolation and characterization of a new family of single chain fragment variable (scFv) molecules targeting the human B7H6 ligand. Through directed evolution of a yeast surface displayed non-immune human-derived scFv library, eight candidates comprising a single family of clones differing by up to four amino acid mutations and exhibiting nM avidities for soluble B7H6-Ig were isolated. A representative clone re-formatted as an scFv-CH1-Fc molecule demonstrated specific binding to both B7H6-Ig and native membrane-bound B7H6 on tumor cell lines with a binding avidity comparable to the previously characterized B7H6-targeting antibody, TZ47. Furthermore, these clones recognized an epitope distinct from that of TZ47 and the natural NK cell ligand NKp30, and demonstrated specific activity against B7H6 expressing tumor cells when expressed as a chimeric antigen receptor (CAR) in T cells. PMID- 29040758 TI - Linking Light Exposure and Subsequent Sleep: A Field Polysomnography Study in Humans. AB - Study objectives: To determine the effect of light exposure on subsequent sleep characteristics under ambulatory field conditions. Methods: Twenty healthy participants were fitted with ambulatory polysomnography (PSG) and wrist actigraphs to assess light exposure, rest-activity, sleep quality, timing, and architecture. Laboratory salivary dim-light melatonin onset was analyzed to determine endogenous circadian phase. Results: Later circadian clock phase was associated with lower intensity (R2 = 0.34, chi2(1) = 7.19, p < .01), later light exposure (quadratic, controlling for daylength, R2 = 0.47, chi2(3) = 32.38, p < .0001), and to later sleep timing (R2 = 0.71, chi2(1) = 20.39, p < .0001). Those with later first exposure to more than 10 lux of light had more awakenings during subsequent sleep (controlled for daylength, R2 = 0.36, chi2(2) = 8.66, p < .05). Those with later light exposure subsequently had a shorter latency to first rapid eye movement (REM) sleep episode (R2 = 0.21, chi2(1) = 5.77, p < .05). Those with less light exposure subsequently had a higher percentage of REM sleep (R2 = 0.43, chi2(2) = 13.90, p < .001) in a clock phase modulated manner. Slow-wave sleep accumulation was observed to be larger after preceding exposure to high maximal intensity and early first light exposure (p < .05). Conclusions: The quality and architecture of sleep is associated with preceding light exposure. We propose that light exposure timing and intensity do not only modulate circadian-driven aspects of sleep but also homeostatic sleep pressure. These novel ambulatory PSG findings are the first to highlight the direct relationship between light and subsequent sleep, combining knowledge of homeostatic and circadian regulation of sleep by light. Upon confirmation by interventional studies, this hypothesis could change current understanding of sleep regulation and its relationship to prior light exposure. Clinical trial details: This study was not a clinical trial. The study was ethically approved and nationally registered (NL48468.042.14). PMID- 29040760 TI - In Reply: Microsurgical Endoscope-Assisted Gravity-Aided Transfalcine Approach for Contralateral Metastatic Deep Medial Cortical Tumors. PMID- 29040759 TI - Cervical Alignment Changes in Patients Developing Proximal Junctional Kyphosis Following Surgical Correction of Adult Spinal Deformity. AB - BACKGROUND: Proximal junctional kyphosis (PJK) following adult spinal deformity (ASD) surgery is a well-documented complication, but associations between radiographic PJK and cervical malalignment onset remain unexplored. OBJECTIVE: To study cervical malalignment in ASD surgical patients that develop PJK. METHODS: Retrospective review of prospective multicenter database. Inclusion: primary ASD patients (>=5 levels fused, upper instrumented vertebra [UIV] at T2 or above, and 1-yr minimum follow-up) without baseline cervical deformity (CD), defined as >=2 of the following criteria: T1 slope minus cervical lordosis < 20 degrees , cervical sagittal vertical axis < 4 cm, C2-C7 cervical lordosis < 10 degrees . PJK presence (<10 degrees change in UIV and UIV + 2 kyphosis) and angle were identified 1 yr postoperative. Propensity score matching between PJK and nonPJK groups controlled for baseline alignment. Preoperative and 1-yr postoperative cervical alignment were compared between PJK and nonPJK patients. RESULTS: One hundred sixty-three patients without baseline CD (54.9 yr, 83.9% female) were included. PJK developed in 60 (36.8%) patients, with 27 (45%) having UIV above T7. PJK patients had significantly greater baseline T1 slope in unmatched and propensity score matching comparisons (P < .05). At 1 yr postoperative, PJK patients had significantly higher T1 slope (P < .001), C2-T3 Cobb (P = .04), and C2-T3 sagittal vertical axis (P = .02). New-onset CD rate in PJK patients was 15%, and 16.5% in nonPJK patients (P > .05). Increased PJK magnitude was associated with increasing T1 slope and C2-T3 SVA (P < .05). CONCLUSION: Patients who develop PJK following surgical correction of ASD have a 15% incidence of development of new-onset CD. Patients developing PJK following surgical correction of ASD tend to have an increased preoperative T1 slope. Increased progression of C2-T3 Cobb angle and C2-T3 SVA are associated with development of PJK following surgical correction of thoracolumbar deformity. PMID- 29040761 TI - PCSD: a plant chromatin state database. AB - Genome-wide maps of chromatin states have become a powerful representation of genome annotation and regulatory activity. We collected public and in-house plant epigenomic data sets and applied a Hidden Markov Model to define chromatin states, which included 290 553 (36 chromatin states), 831 235 (38 chromatin states) and 3 936 844 (26 chromatin states) segments across the whole genome of Arabidopsis thaliana, Oryza sativa and Zea mays, respectively. We constructed a Plant Chromatin State Database (PCSD, http://systemsbiology.cau.edu.cn/chromstates) to integrate detailed information about chromatin states, including the features and distribution of states, segments in states and related genes with segments. The self-organization mapping (SOM) results for these different chromatin signatures and UCSC Genome Browser for visualization were also integrated into the PCSD database. We further provided differential SOM maps between two epigenetic marks for chromatin state comparison and custom tools for new data analysis. The segments and related genes in SOM maps can be searched and used for motif and GO analysis, respectively. In addition, multi-species integration can be used to discover conserved features at the epigenomic level. In summary, our PCSD database integrated the identified chromatin states with epigenetic features and may be beneficial for communities to discover causal functions hidden in plant chromatin. PMID- 29040762 TI - Effects of Schizophrenia Polygenic Risk Scores on Brain Activity and Performance During Working Memory Subprocesses in Healthy Young Adults. AB - Recent work has begun to shed light on the neural correlates and possible mechanisms of polygenic risk for schizophrenia. Here, we map a schizophrenia polygenic risk profile score (PRS) based on genome-wide association study significant loci onto variability in the activity and functional connectivity of a frontoparietal network supporting the manipulation versus maintenance of information during a numerical working memory (WM) task in healthy young adults (n = 99, mean age = 19.8). Our analyses revealed that higher PRS was associated with hypoactivity of the dorsolateral prefrontal cortex (dlPFC) during the manipulation but not maintenance of information in WM (r2 = .0576, P = .018). Post hoc analyses revealed that PRS-modulated dlPFC hypoactivity correlated with faster reaction times during WM manipulation (r2 = .0967, P = .002), and faster processing speed (r2 = .0967, P = .003) on a separate behavioral task. These PRS associated patterns recapitulate dlPFC hypoactivity observed in patients with schizophrenia during central executive manipulation of information in WM on this task. PMID- 29040765 TI - Flow Diversion for the Treatment of an Unruptured Paraclinoid Carotid Artery Aneurysm. PMID- 29040763 TI - Oxytocin effects on self-referential processing: behavioral and neuroimaging evidence. AB - Oxytocin (OT) influences other-oriented mental processes (e.g. trust and empathy) and the underlying neural substrates. However, whether and how OT modulates self oriented processes and the underlying brain activity remains unclear. Using a double-blind, placebo-controlled between-subjects design, we manipulated memory encoding and retrieval of trait adjectives related to the self, a friend and a celebrity in a self-referential task in male adults. Experiment 1 (N = 51) found that OT vs placebo treatments reduced response times during encoding self-related trait adjectives but increased recognition scores of self-related information during memory retrieval. Experiment 2 (N = 50) showed similar OT effects on response times during encoding self-related trait adjectives. Moreover, functional magnetic resonance imaging (fMRI) results revealed that OT vs placebo treatments decreased the activity in the medial prefrontal cortex (MPFC) involved in encoding of self-related trait adjectives and weakened the coupling between the MPFC activity and a cultural trait (i.e. interdependence). Experiment 3 (N = 52) revealed that OT vs placebo treatments increased the right superior frontal activity during memory retrieval of self-related information. The results provide behavioral and fMRI evidence for OT effects on self-referential processing and suggest distinct patterns of OT modulations of brain activities engaged in encoding and retrieval of self-related information. PMID- 29040764 TI - Rif1 promotes a repressive chromatin state to safeguard against endogenous retrovirus activation. AB - Transposable elements, including endogenous retroviruses (ERVs), constitute a large fraction of the mammalian genome. They are transcriptionally silenced during early development to protect genome integrity and aberrant transcription. However, the mechanisms that control their repression are not fully understood. To systematically study ERV repression, we carried out an RNAi screen in mouse embryonic stem cells (ESCs) and identified a list of novel regulators. Among them, Rif1 displays the strongest effect. Rif1 depletion by RNAi or gene deletion led to increased transcription and increased chromatin accessibility at ERV regions and their neighboring genes. This transcriptional de-repression becomes more severe when DNA methylation is lost. On the mechanistic level, Rif1 directly occupies ERVs and is required for repressive histone mark H3K9me3 and H3K27me3 assembly and DNA methylation. It interacts with histone methyltransferases and facilitates their recruitment to ERV regions. Importantly, Rif1 represses ERVs in human ESCs as well, and the evolutionally-conserved HEAT-like domain is essential for its function. Finally, Rif1 acts as a barrier during somatic cell reprogramming, and its depletion significantly enhances reprogramming efficiency. Together, our study uncovered many previously uncharacterized repressors of ERVs, and defined an essential role of Rif1 in the epigenetic defense against ERV activation. PMID- 29040767 TI - Contribution of the S-type Anion Channel SLAC1 to Stomatal Control and Its Dependence on Developmental Stage in Rice. AB - Rice production depends on water availability and carbon fixation by photosynthesis. Therefore, optimal control of stomata, which regulate leaf transpiration and CO2 absorption, is important for high productivity. SLOW ANION CHANNEL-ASSOCIATED 1 (SLAC1) is an S-type anion channel protein that controls stomatal closure in response to elevated CO2. Rice slac1 mutants showed significantly increased stomatal conductance (gs) and enhanced CO2 assimilation. To discern the contribution of stomatal regulation to rice growth, we compared gs in the wild type (WT) and two mutants, slac1 and the dominant-positive mutant SLAC1-F461A, which expresses a point mutation causing an amino acid substitution (F461A) in SLAC1, at different growth stages. Because the side group of F461 is estimated to function as the channel gate, stomata in the SLAC1-F461A mutant are expected to close constitutively. All three lines had maximum gs during the tillering stage, when the gs values were 50% higher in slac1 and 70% lower in SLAC1-F461A, compared with the WT. At the tillering stage, the gs values were highest in the first leaves at the top of the stem and lower in the second and third leaves in all three lines. Both slac1 and SLAC1-F461A retained the ability to change gs in response to the day-night cycle, and showed differences in tillering rate and plant height compared with the WT, and lower grain yield. These observations show that SLAC1 plays a crucial role in regulating stomata in rice at the tillering stage. PMID- 29040766 TI - Brain-to-brain synchronization across two persons predicts mutual prosociality. AB - People tend to be more prosocial after synchronizing behaviors with others, yet the underlying neural mechanisms are rarely known. In this study, participant dyads performed either a coordination task or an independence task, with their brain activations recorded via the functional near-infrared spectroscopy hyperscanning technique. Participant dyads in the coordination group showed higher synchronized behaviors and greater subsequent inclination to help each other than those in the independence group, indicating the prosocial effect of interpersonal synchrony. Importantly, the coordination group demonstrated the significant task-related brain coherence, namely the interbrain synchronization, at the left middle frontal area. The detected interbrain synchronization was sensitive to shared intentionality between participants and was correlated with the mutual prosocial inclination. Further, the task-related brain coherence played a mediation role in the prosocial effect of interpersonal synchrony. This study reveals the relevance of brain-to-brain synchronization among individuals with subsequent mutual prosocial inclination and suggests the neural mechanism associating with shared cognition for the facilitation of interpersonal synchrony on prosociality. PMID- 29040768 TI - OVERVIEW OF NEUTRON MEASUREMENTS IN JET FUSION DEVICE. AB - The design and operation of ITER experimental fusion reactor requires the development of neutron measurement techniques and numerical tools to derive the fusion power and the radiation field in the device and in the surrounding areas. Nuclear analyses provide essential input to the conceptual design, optimisation, engineering and safety case in ITER and power plant studies. The required radiation transport calculations are extremely challenging because of the large physical extent of the reactor plant, the complexity of the geometry, and the combination of deep penetration and streaming paths. This article reports the experimental activities which are carried-out at JET to validate the neutronics measurements methods and numerical tools used in ITER and power plant design. A new deuterium-tritium campaign is proposed in 2019 at JET: the unique 14 MeV neutron yields produced will be exploited as much as possible to validate measurement techniques, codes, procedures and data currently used in ITER design thus reducing the related uncertainties and the associated risks in the machine operation. PMID- 29040769 TI - Effect of the Duration of Meteorological Data Collection on the Prospective Assessment of Long-Term Atmospheric Dispersion Factors. AB - Assessing the environmental dispersion of radioactive effluents from a nuclear facility under normal operation is a prerequisite in applying for the construction permit and operation license of the facility. In Korea, the Nuclear Safety and Security Commission requires at least 1- and 2-year periods of site specific meteorological data to assess the atmospheric dispersion of the effluents from a nuclear reactor facility for a construction permit and operating license, respectively. In this study, we investigated if an extended period of meteorological data would be certainly preferable for the prospective assessment of dispersion of the atmospheric effluents under current data handling approaches. For test estimation, the meteorological data collected in the Kori nuclear power plant site in 2001 to 2008 were utilized. We suggest that the accumulated meteorological data be reflected in assessing the atmospheric dispersion in the form of individual annual data rather than the averaged data over the whole period. PMID- 29040770 TI - Optimized light-inducible transcription in mammalian cells using Flavin Kelch repeat F-box1/GIGANTEA and CRY2/CIB1. AB - Light-inducible systems allow spatiotemporal control of a variety of biological activities. Here, we report newly optimized optogenetic tools to induce transcription with light in mammalian cells, using the Arabidopsis photoreceptor Flavin Kelch-repeat F-box 1 (FKF1) and its binding partner GIGANTEA (GI) as well as CRY2/CIB1. By combining the mutagenesis of FKF1 with the optimization of a split FKF1/GI dimerized Gal4-VP16 transcriptional system, we identified constructs enabling significantly improved light-triggered transcriptional induction. In addition, we have improved the CRY2/CIB1-based light-inducible transcription with split construct optimization. The improvements regarding the FKF1/GI- and CRY2/CIB1-based systems will be widely applicable for the light dependent control of transcription in mammalian cells. PMID- 29040772 TI - Letter: Microsurgical Endoscope-Assisted Gravity-Aided Transfalcine Approach for Contralateral Metastatic Deep Medial Cortical Tumors. PMID- 29040771 TI - Contrasting ecophysiological strategies related to drought: the case of a mixed stand of Scots pine (Pinus sylvestris) and a submediterranean oak (Quercus subpyrenaica). AB - Submediterranean forests are considered an ecotone between Mediterranean and Eurosiberian ecosystems, and are very sensitive to global change. A decline of Scots pine (Pinus sylvestris L.) and a related expansion of oak species (Quercus spp.) have been reported in the Spanish Pre-Pyrenees. Although this has been associated with increasing drought stress, the underlying mechanisms are not fully understood, and suitable monitoring protocols are lacking. The aim of this study is to bring insight into the physiological mechanisms anticipating selective decline of the pines, with particular focus on carbon and water relations. For this purpose, we performed a sampling campaign covering two growing seasons in a mixed stand of P. sylvestris and Quercus subpyrenaica E.H del Villar. We sampled seasonally twig xylem and soil for water isotope composition (delta18O and delta2H), leaves for carbon isotope composition (delta13C) and stems to quantify non-structural carbohydrates (NSC) concentration, and measured water potential and leaf gas exchange. The first summer drought was severe for both species, reaching low predawn water potential (-2.2 MPa), very low stomatal conductance (12 +/- 1.0 mmol m-2 s-1) and near-zero or even negative net photosynthesis, particularly in P. sylvestris (-0.6 +/- 0.34 MUmol m-2 s-1 in oaks, -1.3 +/- 0.16 MUmol m-2 s-1 in pines). Hence, the tighter stomatal control and more isohydric strategy of P. sylvestris resulted in larger limitations on carbon assimilation, and this was also reflected in carbon storage, showing twofold larger total NSC concentration in oaks than in pines (7.8 +/- 2.4% and 4.0 +/- 1.3%, respectively). We observed a faster recovery of predawn water potential after summer drought in Q. subpyrenaica than in P. sylvestris (-0.8 MPa and -1.1 MPa, respectively). As supported by the isotopic data, this was probably associated with a deeper and more reliable water supply in Q. subpyrenaica. In line with these short-term observations, we found a more pronounced negative effect of steadily increasing drought stress on long-term growth in pines compared with oaks. All these observations confer evidence of early warning of P. sylvestris decline and indicate the adaptive advantage of Q. subpyrenaica in the area. PMID- 29040773 TI - Treatment Outcomes of A Randomized Trial of Unruptured Brain Arteriovenous Malformation-Eligible Unruptured Brain Arteriovenous Malformation Patients. AB - BACKGROUND: The guideline for treating unruptured brain arteriovenous malformations (ubAVMs) remains controversial. A Randomized Trial of Unruptured Brain Arteriovenous Malformations (ARUBA) reported lower risk of stroke or death with conservative management compared to interventional treatment. There were numerous limitations to the study, including short follow-up period and disproportionate number of patients treated with surgery and embolization. OBJECTIVE: To evaluate whether treatment of ARUBA-eligible patients have acceptable outcomes at our institution. METHODS: Retrospective analysis was performed on 673 patients with brain AVMs treated at our institution between 2001 and 2014. One hundred five patients were ARUBA eligible and included in the study. Patients were divided into the microsurgery or Gamma Knife Radiosurgery (GKS; Elekta, Stockholm, Sweden) arm depending on their final treatment. Mean follow-up period was 43 mo (range 4-136 mo). Primary outcome was stroke or death. RESULTS: A total of 8 (7.6%) patients had a stroke or died. The overall risk of stroke or death was 11.4% (5 of 44 patients) for the microsurgery arm and 4.9% (3 of 61 patients) for the GKS arm. The annual rates of stroke or death were 2.1%, 4.0%, and 1.2% for the entire patient cohort, microsurgery arm, and GKS arm, respectively. AVM obliteration rates at the end of the follow-up period were 95.5% and 47.5% for the microsurgery and GKS arms, respectively. CONCLUSION: We report a lower overall risk of stroke or death in our ARUBA-eligible patients following treatment than ARUBA. Our results suggest that microsurgery and GKS may be appropriate treatments for patients with ubAVM. PMID- 29040774 TI - Assessing the between-background stability of metabolic effects arising from lignin-related transgenic modifications, in two Populus hybrids using non targeted metabolomics. AB - The advances in 'high-throughput' biology have significantly expanded our fundamental understanding of complex biological processes inherent to tree growth and development. Relative to the significant achievements attained with whole genome re-sequencing and transcriptomics efforts, the development and power of post-transcriptional tools such as proteomics and metabolomics continue to lag behind in tree biology. However, the inclusion of these powerful functional genomics platforms should substantially enable systems biology assessments of tree development, physiology and response(s) to biotic and abiotic stresses. Herein, we employ a non-targeted metabolomics platform to elucidate the metabolic plasticity of xylem lignification in distinct hybrid poplar genetic backgrounds, as well as in transgenic trees in these backgrounds expressing two common constructs: the first construct (C4H::F5H) augments monolignol content (syringyl:guaiacyl (S:G) ratio), while the second construct (C3'H-RNAi) reduces cell wall lignification. The results clearly show that genotype-specific metabolism exists, and provide an appropriate foundation for properly comparing the influence of background on the relationships between metabolic and specific phenotypic traits. Moreover, it was apparent that transgene-induced phenotypic gradients in cell wall chemical wood can be associated with global metabolism of secondary xylem biosynthesis, however in a genotype-specific manner. This result implies that the same may be true for phenotypic gradients arising through natural genetic variation, intensive breeding or environmental factors. It is also apparent that while distinct, at a global level the wood-forming metabolisms of different poplar hybrids can, to some extent, respond similarly to the influences of genetic manipulation of lignin-related genes. This further implies that with the correct approach, it may be possible to associate the emergence of specific wood traits from different genetic backgrounds-be they transgene-induced or otherwise-with stable metabolic signatures. PMID- 29040775 TI - CONSTRUCTION AND TEST OF A PORTABLE TISSUE-EQUIVALENT PROPORTIONAL COUNTER SYSTEM. AB - Tissue-equivalent proportional counter (TEPC) is a very promising dosemeter for radiation protection in mixed radiation fields. In this article, a portable TEPC system including a spherical homemade TEPC detector and the compact low-power integrated circuit prototype was constructed and tested in gamma and neutron radiation fields. The microdosimetric spectra results displayed that the portable TEPC system could deal with four orders of magnitude voltage pulse signals. And the measured dose equivalent values agreed with reference values, which means the portable TEPC system had fulfilled the test and satisfied the requirement for radiation monitor. PMID- 29040777 TI - Efficient Imaging: Examining the Value of Ultrasound in the Diagnosis of Traumatic Adult Brachial Plexus Injuries, A Systematic Review. AB - BACKGROUND: Traumatic brachial plexus injury (BPI) can result in debilitating sequelae of the upper extremity. Presently, therapeutic decisions are based on the mechanism of injury, serial physical examination, electromyography, nerve conduction, and imaging studies. While magnetic resonance imaging is the current imaging modality of choice for BPI, ultrasound is a promising newcomer that is inexpensive, accessible, and available at point of care. OBJECTIVE: To evaluate ultrasound as a diagnostic tool in the assessment of traumatic adult BPI through a systematic review. METHODS: An electronic literature search was completed in MEDLINE, EMBASE, CINAHL, and Cochrane databases up to July 2016. Two independent reviewers completed the screening and data extraction. Methodological quality of studies was evaluated using the Quality Assessment of Diagnostic Accuracy Studies 2 tool. Statistical analysis was used to estimate pooled sensitivities and study heterogeneity. RESULTS: Seven studies were included. Four studies compared the detection of pre- and postganglionic lesions at different levels (C5-T1) to surgical exploration as the reference standard. Sensitivity of lesion detection was greater in the upper and middle spinal nerves: C5 (93%, confidence interval [CI] = 78%-100%), C6 (94%, CI = 82%-100%), and C7 (95%, CI = 86%-100%) than in the lower: C8 (71%, CI = 36%-95%) and T1 (56%, CI = 29%-81%). CONCLUSION: Individual studies demonstrate ultrasound as an effective diagnostic tool for traumatic adult BPI. Sensitivity of lesion detection was noted to be greater in the upper and middle (C5-C7) than in the lower spinal nerves (C8, T1). Further standardized studies should be performed to confirm the utility of ultrasound in the diagnosis of traumatic adult BPI. PMID- 29040776 TI - Self-reported Cognitive Biases Moderate the Associations Between Social Stress and Paranoid Ideation in a Virtual Reality Experimental Study. AB - Introduction: Cognitive biases are associated with psychosis liability and paranoid ideation. This study investigated the moderating relationship between pre-existing self-reported cognitive biases and the occurrence of paranoid ideation in response to different levels of social stress in a virtual reality environment. Methods: This study included 170 participants with different levels of psychosis liability (55 recent onset psychosis, 20 ultrahigh risk for psychosis, 42 siblings of psychotic patients, and 53 controls). All participants were exposed to virtual environments with different levels of social stress. The level of experienced paranoia in the virtual environments was measured with the State Social Paranoia Scale. Cognitive biases were assessed with a self-report continuous measure. Also, cumulative number of cognitive biases was calculated using dichotomous measures of the separate biases, based on general population norm scores. Results: Higher belief inflexibility bias (Z = 2.83, P < .001), attention to threat bias (Z = 3.40, P < .001), external attribution bias (Z = 2.60, P < .001), and data-gathering bias (Z = 2.07, P < .05) were all positively associated with reported paranoid ideation in the social virtual environments. Level of paranoid response increased with number of cognitive biases present (B = 1.73, P < .001). The effect of environmental stressors on paranoid ideation was moderated by attention to threat bias (Z = 2.78, P < .01) and external attribution bias (Z = 2.75, P < .01), whereas data-gathering bias and belief inflexibility did not moderate the relationship. Conclusion: There is an additive effect of separate cognitive biases on paranoid response to social stress. The effect of social environmental stressors on paranoid ideation is further enhanced by attention to threat bias and external attribution bias. PMID- 29040778 TI - Multimodality Management of Recurrent Skull Base Chordomas: Factors Impacting Tumor Control and Disease-Specific Survival. AB - BACKGROUND: Limited data exist to guide the management of recurrent chordomas arising in the skull base. OBJECTIVE: To determine factors affecting tumor control rates and disease-specific survival (DSS) in recurrent disease. METHODS: A retrospective review was performed of 29 patients with 55 recurrences treated at our institution. Tumor and treatment factors were assessed for impact on freedom from progression (FFP; primary outcome) and DSS (secondary outcome). RESULTS: Postradiotherapy disease failure was much more difficult to manage vs progression after surgery alone (15.9 vs 41.4 mo, P = .094). Distant metastases and, specifically, leptomeningeal disease at presentation were associated with poorer DSS and FFP (P < .05). For local progression after surgery alone, repeat resection (P < .05) improved median FFP. With postradiotherapy local failure, repeat resection did not confer any benefit (13.5 vs 17.6 mo, P > .05), while a trend towards improved FFP was seen with stereotactic radiosurgery (28.3 vs 16.2 mo, P = .233). For distant metastases, site-directed therapy (surgery or radiation) allowed for site control (P < .05) but did not affect FFP or DSS. Presentation with early progression <6 mo from previous treatment portended significantly worse DSS (19.3 vs 77.6 mo, P < .05). CONCLUSION: There is a need for treatment of recurrent disease to be tailored to the pattern of tumor recurrence and previously received treatments. Postradiotherapy progression poses particular challenges given the apparent limited role of repeat resection alone. Stereotactic radiosurgery may have a role in this setting. While patients with systemic metastases appear to respond well to site-directed therapy, those with leptomeningeal disease have a dismal prognosis. PMID- 29040779 TI - The Survival Advantage of "Supratotal". PMID- 29040781 TI - Further insights into the components of resistance to Ophiostoma novo-ulmi in Ulmus minor: hydraulic conductance, stomatal sensitivity and bark dehydration. AB - Dutch elm disease (DED) is a vascular disease that has killed over 1 billion elm trees. The pathogen spreads throughout the xylem network triggering vessel blockage, which results in water stress, tissue dehydration and extensive leaf wilting in susceptible genotypes. We investigated the differences between four Ulmus minor Mill. clones of contrasting susceptibility to Ophiostoma novo-ulmi Brasier regarding morphological, anatomical and physiological traits affecting water transport, in order to gain a better understanding of the mechanisms underlying DED susceptibility. We analyzed the differential response to water shortage and increased air vapor pressure deficit (VPD) to investigate whether resistance to water stress might be related to DED tolerance. Sixteen plants per clone, aged 2 years, were grown inside a greenhouse under differential watering. Stomatal conductance was measured under ambient and increased VPD. Growth, bark water content and stem hydraulic and anatomical parameters were measured 22 days after starting differential watering. Vessel lumen area, lumen fraction and hydraulic conductance were highest in susceptible clones. Stomatal conductance was lowest under low VPD and decreased faster under increased VPD in resistant clones. We found a negative relationship between the decrease in stomatal conductance at increased VPD and specific hydraulic conductance, revealing a narrower hydraulic margin for sustaining transpiration in resistant clones. The effect of water shortage was greater on radial stem growth than on leaf area, which could be explained through an extensive use of capacitance water to buffer xylem water potential. Water shortage reduced stomatal conductance and vessel lumen area. Bark water content under conditions of water shortage only decreased in susceptible clones. Higher hydraulic constraints to sap flow in resistant clones may determine higher stomatal sensitivity to VPD and so contribute to DED resistance by limiting pathogen expansion and reducing water loss and metabolic impairment in cells involved in fighting against infection. PMID- 29040780 TI - Fear boosts the early neural coding of faces. AB - The rapid extraction of facial identity and emotional expressions is critical for adapted social interactions. These biologically relevant abilities have been associated with early neural responses on the face sensitive N170 component. However, whether all facial expressions uniformly modulate the N170, and whether this effect occurs only when emotion categorization is task-relevant, is still unclear. To clarify this issue, we recorded high-resolution electrophysiological signals while 22 observers perceived the six basic expressions plus neutral. We used a repetition suppression paradigm, with an adaptor followed by a target face displaying the same identity and expression (trials of interest). We also included catch trials to which participants had to react, by varying identity (identity-task), expression (expression-task) or both (dual-task) on the target face. We extracted single-trial Repetition Suppression (stRS) responses using a data-driven spatiotemporal approach with a robust hierarchical linear model to isolate adaptation effects on the trials of interest. Regardless of the task, fear was the only expression modulating the N170, eliciting the strongest stRS responses. This observation was corroborated by distinct behavioral performance during the catch trials for this facial expression. Altogether, our data reinforce the view that fear elicits distinct neural processes in the brain, enhancing attention and facilitating the early coding of faces. PMID- 29040782 TI - EGFR heterogeneity and implications for therapeutic intervention in glioblastoma. AB - Patients with glioblastoma (GBM) have a universally poor prognosis and are in urgent need of effective treatment strategies. Recent advances in sequencing techniques unraveled the complete genomic landscape of GBMs and revealed profound heterogeneity of individual tumors even at the single cell level. Genomic profiling has detected epidermal growth factor receptor (EGFR) gene alterations in more than half of GBMs. Major genetic events include amplification and mutation of EGFR. Yet, treatment strategies targeting EGFR have thus far failed in clinical trials. In this review, we discuss the clonal and functional heterogeneity of EGFRs in GBM development and critically reassess the potential of EGFRs as therapeutic targets. PMID- 29040783 TI - PATIENT EXPOSURE FROM NUCLEAR MEDICINE IN FRANCE: NATIONAL FOLLOW-UP AND INFLUENCE OF THE TECHNOLOGY THROUGH DIAGNOSTIC REFERENCE LEVELS DATA ANALYSIS. AB - The Nuclear Safety and Radiation Protection French Institute (IRSN) presents its latest assessment from up-to-date diagnostic reference levels (DRL) national data in nuclear medicine (NM). NM departments annually send data to IRSN to estimate the representativeness of current DRLs. Complementary analyses of the data have been performed to evaluate the influence of equipment evolution on practice and patient radiation exposure. Based on data from almost 90% of the French NM departments, some DRL update are proposed. The analysis of positron emission tomography data show that the more the time of flight technology is available on equipment, the lower is the administered activity to the patient. IRSN recommends updating DRL regulation with current and relevant examination data. The influence of technology evolution appeared to be positive for patient exposure and the results showed an obvious involvement of professionals in the radiation dose optimisation process. PMID- 29040784 TI - Tuberculous pneumonia. PMID- 29040785 TI - Engineering a temperature sensitive tobacco etch virus protease. AB - Since tobacco etch virus protease (TEVp) has a high specificity and efficiency in cleaving its target substrates, many groups have attempted to engineer conditional control of its activity. Temperature induction is widely used for modulating gene function because it has fast temporal response, good penetrability and applicability to many model organisms. Here, we engineered a temperature sensitive TEVp (tsTEVp) by using N-terminal truncations to TEVp that achieved efficient proteolysis on a timescale of 4 h after 30 degrees C induction, while remaining relatively inactive at 37 degrees C. As demonstration, tsTEVp was used to generate temperature-induced biological responses for protein translocation, protein degradation and Ca2+-mediated cellular blebbing. Lastly, tsTEVp and their engineered target substrates could find applications in engineered synthetic biological systems. PMID- 29040786 TI - DEVELOPMENT, CHARACTERIZATION AND TESTING OF A SIMPLIFIED BONNER SPHERE SYSTEM FOR RAPID NEUTRON FIELD CHARACTERIZATION. AB - Personal neutron dosimetry requires workplace specific correction factors from detailed neutron field characterization. A Bonner sphere system (BSS) with a 3He proportional counter and a 3 inch an a 9 inch sphere was developed at SCK.CEN for rapid neutron field characterization. The BSS energy and angular responses were simulated with MCNPX and validated by irradiations with a thermal neutron beam at the Belgian Reactor 1 (BR1) and 252Cf and Am-Be sources at the SCK.CEN Laboratory for Nuclear Calibration (LNK). The BSS unfolding performance was tested using the FRUIT unfolding code for measurements of the scattered neutron field at the LNK. The unfolded spectra were in good agreement with MCNPX simulations. PMID- 29040787 TI - Why size matters: the interactive influences of tree diameter distribution and sap flow parameters on upscaled transpiration. AB - In stands with a broad range of diameters, a small number of very large trees can disproportionately influence stand basal area and transpiration (Et). Sap flow based Et estimates may be particularly sensitive to large trees due to nonlinear relationships between tree-level water use (Q) and tree diameter at breast height (DBH). Because Q is typically predicted on the basis of DBH and sap flow rates measured in a subset of trees and then summed to obtain Et, we assessed the relative importance of DBH and sap flow variables (sap velocity, Vs, and sapwood depth, Rs) in determining the magnitude of Et and its dependence on large trees in a tropical montane forest ecosystem. Specifically, we developed a data-driven simulation framework to vary the relationship between DBH and Vs and stand DBH distribution and then calculate Q, Et and the proportion of Et contributed by the largest tree in each stand. Our results demonstrate that variation in how Rs is determined in the largest trees can alter estimates up to 26% of Et while variation in how Vs is determined can vary results by up to 132%. Taken together, these results highlight a great need to expand our understanding of water transport in large trees as this hinders our ability to predict water fluxes accurately from stand to catchment scales. PMID- 29040789 TI - A REVIEW OF NATURAL RADIONUCLIDES IN CANADIAN DRINKING WATER (1975-16). AB - Historical results of natural radioactivity in drinking water were reviewed for a total of 21 communities across Canada from 1975 to 2016. Analyses for 226Ra, 210Pb and total uranium were carried out on monthly composite samples of drinking water from selected Canadian municipalities. Generally speaking, levels of 226Ra, 210Pb and total uranium were found to be low compared to national and international standards for drinking water quality. Because levels were low, federal monitoring programs were discontinued in most communities in 1986 except for Regina, Elliot Lake and Port Hope. The population-weighted average levels for these three communities, using data from the most recent 5 years, are <1 mBq/L for 226Ra, <5 mBq/L for 210Pb and <0.4 MUg/L for total uranium. The average effective dose resulting from drinking water intake at these levels would be <4.3 MUSv per year. PMID- 29040790 TI - Goodbye Paper: We are Moving to Online Only Publication. PMID- 29040788 TI - Familial Mediterranean fever mutations are hypermorphic mutations that specifically decrease the activation threshold of the Pyrin inflammasome. AB - Objectives: FMF is the most frequent autoinflammatory disease and is associated in most patients with bi-allelic MEFV mutations. MEFV encodes Pyrin, an inflammasome sensor activated following RhoGTPase inhibition. The functional consequences of MEFV mutations on the ability of Pyrin variants to act as inflammasome sensors are largely unknown. The aim of this study was to assess whether MEFV mutations affect the ability of Pyrin to detect RhoGTPase inhibition and other inflammasome stimuli. Methods: IL-1beta and IL-18 released by monocytes from healthy donors (HDs) and FMF patients were measured upon specific engagement of the Pyrin, NLRP3 and NLRC4 inflammasomes. Cell death kinetics following Pyrin activation was monitored in real time. Results: Monocytes from FMF patients secreted significantly more IL-1beta and IL-18 and died significantly faster than HD monocytes in response to low concentrations of Clostridium difficile toxin B (TcdB), a Pyrin-activating stimulus. Monocytes from patients bearing two MEFV exon 10 pathogenic variants displayed an increased Pyrin inflammasome response compared with monocytes from patients with a single exon 10 pathogenic variant indicating a gene-dosage effect. Using a short priming step, the response of monocytes from FMF patients to NLRP3- and NLRC4-activating stimuli was normal indicating that MEFV mutations trigger a specific hypersensitivity of monocytes to low doses of a Pyrin-engaging stimulus. Conclusion: Contrary to the NLRP3 mutations described in cryopyrin-associated periodic syndrome, FMF-associated MEFV mutations do not lead to a constitutive activation of Pyrin. Rather, FMF associated mutations are hypermorphic mutations that specifically decrease the activation threshold of the Pyrin inflammasome without affecting other canonical inflammasomes. PMID- 29040791 TI - From the Cover: Roles of mmu_piR_003399 in Microcystin-Leucine Arginine-Induced Reproductive Toxicity in the Spermatogonial Cells and Testis. AB - Our previous work has demonstrated that microcystin-leucine arginine (MC-LR) is a potent toxin for the reproductive system of male mice and it exerts cytotoxicity in spermatogonial cells, resulting in the constitutional and functional changes of the mouse testis. The present study was designed to investigate the functions of P-element-induced wimpy (piwi)-interacting RNAs (piRNAs) in MC-LR-induced reproductive toxicity in male mice. We observed an increase in the mmu_piR_003399 level in spermatogonial cells and mouse testicular tissues following treatment with MC-LR. Moreover, our data confirmed that cyclin-dependent kinase 6 (CDK6) was the target gene of mmu_piR_003399. Increases in the concentration of mmu_piR_003399 were correlated with the reduced expression of CDK6 both in vitro and in vivo. mmu_piR_003399 induced cell cycle arrest at the G1-phase, down regulated sperm counts and sperm motility, and compromised sperm morphology. On the contrary, suppressing the expression of mmu_piR_003399 could substantially attenuate MC-LR-induced pathology in mice including cell cycle arrest, reduced mature sperm counts, sperm viability loss and abnormal sperm morphology. Furthermore, our data supported that mmu_piR_003399 existed in mouse serum and plasma, and its level was increased in MC-LR-treated mice. In conclusion, we demonstrate that mmu_piR_003399 plays a crucial role in regulating MC-LR-induced reproductive toxicity. PMID- 29040792 TI - Future of Days Past: Neurodevelopment and Schizophrenia. AB - Since a proposal in 1986 that schizophrenia involved early neurodevelopmental deviations beginning in intrauterine life that showed varying expressivity as relevant neural systems matured, our understanding of the developmental components of the pathogenesis of schizophrenia has substantially evolved. This commentary highlights recent genetic and epigenetic evidence that prenatal development is a critical period for the expression of schizophrenia risk. Studies of gene expression have been fairly consistent in showing that genes implicated in schizophrenia show relatively greater expression during fetal than postnatal life. Consistent molecular evidence of early environmental perturbations contributing to risk has emerged from studies of epigenetic marks in the brain genome as potential environmental footprints and these also highlight the prenatal period. Analyses of gene expression in placenta dramatically identify the intrauterine environment as a direct point of impact of a component of schizophrenia genetic risk. Together, the enrichment of transcriptional and epigenetic associations with schizophrenia during fetal life suggest that both genetic and environmental risk for schizophrenia have a particular molecular impact on early development, possibly because of genetic biases in environmental sensitivity. PMID- 29040793 TI - Two MATE Transporters with Different Subcellular Localization are Involved in Al Tolerance in Buckwheat. AB - Buckwheat (Fagopyrum esculentum) shows high tolerance to aluminum (Al) toxicity, but the molecular mechanisms responsible for this high Al tolerance are still poorly understood. Here, we investigated the involvement of two MATE (multi-drug and toxic compound extrusion) genes in Al tolerance. Both FeMATE1 and FeMATE2 showed efflux transport activity for citrate, but not for oxalate when expressed in Xenopus oocytes. A transient assay with buckwheat leaf protoplasts using green fluorescent protein (GFP) fusion showed that FeMATE1 was mainly localized to the plasma membrane, whereas FeMATE2 was localized to the trans-Golgi and Golgi. The expression of FeMATE1 was induced by Al only in the roots, but that of FeMATE2 was up-regulated in both the roots and leaves. Furthermore, the expression of both genes only responded to Al toxicity, but not to other stresses including low pH, cadmium (Cd) and lanthanum (La). Heterologous expression of FeMATE1 or FeMATE2 in the Arabidopsis mutant atmate partially rescued its Al tolerance. Expression of FeMATE1 also partially recovered the Al-induced secretion of citrate in the transgenic lines, whereas expression of FeMATE2 did not complement the citrate secretion. Further physiological analysis showed that buckwheat roots also secreted citrate in addition to oxalate in response to Al in a dose responsive manner. Taken together, our results indicate that FeMATE1 is involved in the Al-activated citrate secretion in the roots, while FeMATE2 is probably responsible for transporting citrate into the Golgi system for the internal detoxification of Al in the roots and leaves of buckwheat. PMID- 29040794 TI - Evaluating the peptide structure prediction capabilities of a purely ab-initio method. AB - DEEPSAM is a relatively new global optimization algorithm aimed to predict the structure of bio-molecules from sequence, without any additional preliminary assumption. It is an evolutionary algorithm whose mutation operators are built by hybridizing the diffusion equation method, molecular dynamics simulated annealing, and a quasi-Newton local minimization method. The goal of this study was to evaluate the structure prediction capabilities of DEEPSAM by running it upon NMR structures of linear peptides (10-20 residues). The results indicate that DEEPSAM successfully predicted the conformations of these peptides, using modest computing resources. PMID- 29040795 TI - Case Presentation of Anti-NMDA Receptor Encephalitis in a 4-Year-Old Boy. AB - We report a case of a 4-year-old boy from Oyo, Nigeria, presenting with prolonged seizures and coma with the subsequent development of oro-lingual-facial dyskinesia with frequent tongue thrusting, dysconjugate gaze and choreoathetoid movements of the limbs because of autoimmune encephalitis consistent with anti-N methyl-D-aspartate (anti-NMDAR) encephalitis. PMID- 29040796 TI - An anterior-posterior axis within the ventromedial prefrontal cortex separates self and reward. AB - Although theoretical discourse and experimental studies on the self- and reward biases have a long tradition, currently we have only a limited understanding of how the biases are represented in the brain and, more importantly, how they relate to each other. We used multi-voxel pattern analysis to test for common representations of self and reward in perceptual matching in healthy human subjects. Voxels across an anterior-posterior axis in ventromedial prefrontal cortex (vmPFC) distinguished (i) self-others and (ii) high-low reward, but cross generalization between these dimensions decreased from anterior to posterior vmPFC. The vmPFC is characterized by a shift from a common currency for value to independent, distributed representations of self and reward across an anterior posterior axis. This shift reflected changes in functional connectivity between the posterior part of the vmPFC and the frontal pole when processing self associated stimuli, and the middle frontal gyrus when processing stimuli associated with high reward. The changes in functional connectivity were correlated with behavioral biases, respectively, to the self and reward. The distinct representations of self and reward in the posterior vmPFC are associated with self- and reward-biases in behavior. PMID- 29040797 TI - Attention Deficit Hyperactivity Disorder Symptoms and Psychosis in 22q11.2 Deletion Syndrome. AB - OBJECTIVE: 22q11.2 Deletion Syndrome (22q11.2DS) is associated with increased risk for schizophrenia in adulthood while Attention Deficit Hyperactivity Disorder (ADHD) is the most prevalent diagnosis in childhood. Inattention symptoms are pronounced in 22q11.2DS and given that attentional impairment is a core feature of schizophrenia, inattention symptoms may reflect underlying ADHD, psychosis, or both. We investigate whether inattention is associated with psychosis in 22q11.2DS and in other groups at risk for psychosis but without the deletion (ND) (idiopathic clinical risk and first degree family members of individuals with schizophrenia). METHODS: One hundred thirty-seven individuals with 22q11.2DS (mean age: 14.0), 84 ND individuals with subthreshold psychosis (mean age: 16.9) and 31 ND individuals with family history of psychosis (mean age: 17.0) were included in the study. Psychopathology was assessed using research diagnostic assessments. RESULTS: ADHD total symptoms were associated with overall levels of subthreshold psychosis symptoms in 22q11.2DS (beta = .8, P = .04). Inattention symptoms were specifically associated with positive (beta = .5, P = .004), negative (beta = .5, P = .03), and disorganized (beta = .5, P < .001) symptoms, while hyperactivity-impulsivity symptoms were associated with disorganized symptoms (beta = .5, P = .01). The prevalence of ADHD inattention symptoms was higher in 22q11.2DS with subthreshold psychosis compared to ND individuals with subthreshold psychosis (P < .001), even when adjusting for cognitive impairment and overall psychopathology. The pattern was similar when comparing individuals with 22q11.2DS and ND individuals with family history of psychosis. CONCLUSIONS: This is the first study to examine the associations between ADHD symptoms and psychosis in 22q11.2DS. Our findings support a potentially important role of ADHD inattention symptoms in psychosis in 22q11.2DS. PMID- 29040799 TI - Winter survival of Scots pine seedlings under different snow conditions. AB - Future climate scenarios predict increased air temperatures and precipitation, particularly at high latitudes, and especially so during winter. Soil temperatures, however, are more difficult to predict, since they depend strongly on the fate of the insulating snow cover. 'Rain-on-snow' events and warm spells during winter can lead to thaw-freeze cycles, compacted snow and ice encasement, as well as local flooding. These adverse conditions could counteract the otherwise positive effects of climatic changes on forest seedling growth. In order to study the effects of different winter and snow conditions on young Scots pine (Pinus sylvestris L.) seedlings, we conducted a laboratory experiment in which 80 1-year-old Scots pine seedlings were distributed between four winter treatments in dasotrons: ambient snow cover (SNOW), compressed snow and ice encasement (ICE), flooded and frozen soil (FLOOD) and no snow (NO SNOW). During the winter treatment period and a 1.5-month simulated spring/early summer phase, we monitored the needle, stem and root biomass of the seedlings, and determined their starch and soluble sugar concentrations. In addition, we assessed the stress experienced by the seedlings by measuring chlorophyll fluorescence, electric impedance and photosynthesis of the previous-year needles. Compared with the SNOW treatment, carbohydrate concentrations were lower in the FLOOD and NO SNOW treatments where the seedlings had almost died before the end of the experiment, presumably due to frost desiccation of aboveground parts during the winter treatments. The seedlings of the ICE treatment showed dead needles and stems only above the snow and ice cover. The results emphasize the importance of an insulating and protecting snow cover for small forest tree seedlings, and that future winters with changed snow patterns might affect the survival of tree seedlings and thus forest productivity. PMID- 29040798 TI - Assessment of Cognition and Personality as Potential Endophenotypes in the Western Australian Family Study of Schizophrenia. AB - Phenotypic heterogeneity is a major barrier to understanding the genetic architecture underlying schizophrenia. Incorporating endophenotypes is one way to reduce heterogeneity and facilitate more powerful genetic analysis. Candidate endophenotypes require systematic assessment against endophenotype criteria, and a ranking of their potential utility for genetic analysis. In this study we assess 20 cognitive and personality measures in a sample of 127 families with at least 2 cases of schizophrenia per family (n = 535) plus a set of 30 control families (n = 121) against 4 endophenotype criteria: (a) be associated with the illness but not be a part of its diagnosis, (b) be heritable, (c) co-segregate with the illness in families, and (d) be found in unaffected relatives at a higher rate than in the general population. The endophenotype ranking score (endophenotype ranking variable [ERV]) was used to rank candidate endophenotypes based on their heritability and genetic correlation with schizophrenia. Finally, we used factor analysis to explore latent factors underlying the cognitive and personality measures. Evidence for personality measures as endophenotypes was at least equivalent to that of the cognitive measures. Factor analysis indicated that personality and cognitive traits contribute to independent latent dimensions. The results suggest for this first time that a number of cognitive and personality measures are independent and informative endophenotypes. Use of these endophenotypes in genetic studies will likely improve power and facilitate novel aetiological insights. PMID- 29040801 TI - Molecular-Level Insight into the Interaction of Phospholipid Bilayers with Cellulose. AB - Molecular-level insight into the interactions of phospholipid molecules with cellulose is crucial for the development of novel cellulose-based materials for wound dressing. Here we employ the state-of-the-art computer simulations to unlock for the first time the molecular mechanisms behind such interactions. To this end, we performed a series of atomic-scale molecular dynamics simulations of phospholipid bilayers on a crystalline cellulose support at various hydration levels of the bilayer leaflets next to the cellulose surface. Our findings clearly demonstrate the existence of strong interactions between polar lipid head groups and the hydrophilic surface of a cellulose crystal. We identified two major types of interactions between phospholipid molecules and cellulose chains: (i) direct attractive interactions between lipid choline groups and oxygens of hydroxyl (hydroxymethyl) groups of cellulose and (ii) hydrogen bonding between phosphate groups of lipids and cellulose's hydroxymethyl/hydroxyl groups. When the hydration level of the interfacial bilayer/support region is low, these interactions lead to a pronounced asymmetry in the properties of the opposite bilayer leaflets. In particular, the mass density profiles of the proximal leaflets are split into two peaks and lipid head groups become more horizontally oriented with respect to the bilayer surface. Furthermore, the lateral mobility of lipids in the leaflets next to the cellulose surface is found to slow down considerably. Most of these cellulose-induced effects are likely due to hydrogen bonding between lipid phosphate groups and hydroxymethyl/hydroxyl groups of cellulose: the lipid phosphate groups are pulled toward the water/lipid interface due to the formation of hydrogen bonds. Overall, our findings shed light on the molecular details of the interactions between phospholipid bilayers and cellulose nanocrystals and can be used for identifying possible strategies for improving the properties of cellulose-based dressing materials via, e.g., chemical modification of their surface. PMID- 29040800 TI - Ocriplasmin for symptomatic vitreomacular adhesion. AB - BACKGROUND: Symptomatic vitreomacular adhesion (sVMA) is a recognised cause of visual loss and by tradition has been managed by pars plana vitrectomy (PPV). A less invasive alternative to surgery in some people is enzymatic vitreolysis, using an intravitreal injection of ocriplasmin. OBJECTIVES: To assess the efficacy and safety of ocriplasmin compared to no treatment, sham or placebo for the treatment of sVMA. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (which contains the Cochrane Eyes and Vision Trials Register) (2017, Issue 1), MEDLINE Ovid (1946 to 24 February 2017), Embase Ovid (1947 to 24 February 2017), PubMed (1946 to 24 February 2017), the ISRCTN registry (www.isrctn.com/editAdvancedSearch); searched 24 February 2017, ClinicalTrials.gov (www.clinicaltrials.gov); searched 24 February 2017 and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) (www.who.int/ictrp/search/en); searched 24 February 2017. We did not use any date or language restrictions in the electronic searches for trials. SELECTION CRITERIA: We included randomised controlled trials (RCTs) of people with sVMA. The intervention was intravitreal ocriplasmin 125 MUg injection, and this was compared to placebo or sham injection (control). Placebo was defined as a single intravitreal injection of 0.10 mL placebo with identical drug vehicle diluted with saline. A sham injection was defined as the syringe hub or blunt needle touching the conjunctiva to simulate an injection. DATA COLLECTION AND ANALYSIS: Two authors independently selected relevant trials, assessed methodological quality and extracted data. We graded the certainty of the evidence using the GRADE approach. MAIN RESULTS: This review included four RCTs conducted in Europe and the USA with a total of 932 eyes of 932 participants. Participants were 18 to 97 years of age, with evidence of focal vitreomacular adhesion (VMA) on optical coherence tomography (OCT) imaging, with a best corrected visual acuity (BCVA) of 20/25 or worse in the study eye and 20/400 or better in the fellow eye. The interventions compared were intravitreal ocriplasmin versus sham (two RCTs) or placebo (two RCTs) injection. Both sham and placebo injection were classified as the control group. The main outcome measures were assessed at 28 days and six months. Overall, we judged the studies to have a low or unclear risk of bias. All four RCTs were sponsored by the manufacturers of ocriplasmin.Compared with control, ocriplasmin treatment was more likely to result in VMA release within 28 days (risk ratio (RR) 3.46, 95% confidence interval (CI) 2.00 to 6.00; 859 eyes, 4 RCTs, high-certainty evidence). Approximately 97/1000 eyes will have VMA release within 28 days without treatment. An additional 237 eyes will have VMA release within 28 days for every 1000 eyes treated with ocriplasmin (95% CI 96 more to 482 more).Treatment with ocriplasmin was also more likely to result in macular hole closure (RR 2.87, 95% CI 1.50 to 5.51; 229 eyes, 3 RCTs, high-certainty evidence). Approximately 123/1000 eyes with macular holes will have closure with no treatment. An additional 231 eyes will have macular hole closure for every 1000 eyes treated with ocriplasmin (95% CI 62 more to 556 more).Eyes receiving ocriplasmin were also more likely to have complete posterior vitreous detachment (PVD) within 28 days (RR 2.94, 95% CI 1.39 to 6.24; 689 eyes, 3 RCTs, high-certainty evidence). Approximately 40/1000 eyes will have complete PVD within 28 days without treatment. An additional 78 eyes will have complete PVD within 28 days for every 1000 eyes treated with ocriplasmin (95% CI 16 more to 210 more).Eyes receiving ocriplasmin were more likely to achieve 3-line or greater improvement in BCVA at six months (RR 1.95, 95% CI 1.07 to 3.53; 674 eyes, 3 RCTs, moderate-certainty evidence). Approximately 61/1000 eyes will have a 3-line or greater improvement in BCVA at six months without treatment. An additional 58 eyes will have 3-line or greater improvement in BCVA at six months for every 1000 eyes treated with ocriplasmin (95% CI 9 more to 154 more).Receiving ocriplasmin also reduced the requirement for vitrectomy at six months (RR 0.67, 95% CI 0.50 to 0.91; 689 eyes, 3 RCTs, moderate-certainty evidence). Approximately 265/1000 eyes will require vitrectomy at six months without treatment and 87 fewer eyes will require vitrectomy for every 1000 eyes treated with ocriplasmin (95% CI 24 fewer to 132 fewer).Treatment with ocriplasmin resulted in a greater improvement in validated Visual Function Questionnaire form score at six months (mean improvement difference 2.7 points, 95% CI 0.8 to 4.6; 652 eyes, 2 RCTs, moderate-certainty evidence).Eyes receiving ocriplasmin were more likely to have an adverse event (RR 1.22, 95% CI 1.09 to 1.37, 909 eyes, 4 RCTs, moderate-certainty evidence). Approximately 571/1000 eyes will have an adverse event with sham or placebo injection and 106 more eyes will have an adverse event for every 1000 eyes treated with ocriplasmin (95% CI 52 more to 212 more). AUTHORS' CONCLUSIONS: Evidence from a limited number of RCTs suggests that ocriplasmin is useful in the treatment of sVMA. However, up to 20% of eyes treated with ocriplasmin will still require additional treatment with PPV within six months. There were more ocular adverse events in eyes treated with ocriplasmin than control (sham or placebo injection) treatment. Many of these adverse events, particularly vitreous floaters and photopsia, are known to be associated with posterior vitreous detachment. At present however, there is minimal published long-term safety data on eyes treated with ocriplasmin. Further large RCTs comparing ocriplasmin with other management options for sVMA would be beneficial. PMID- 29040802 TI - Freezing Temperatures, Ice Nanotubes Structures, and Proton Ordering of TIP4P/ICE Water inside Single Wall Carbon Nanotubes. AB - A very recent experimental paper importantly and unexpectedly showed that water in carbon nanotubes is already in the solid ordered phase at the temperature where bulk water boils. The water models used so far in literature for molecular dynamics simulations in carbon nanotubes show freezing temperatures lower than the experiments. We present here results from molecular dynamics simulations of water inside single walled carbon nanotubes using an extremely realistic model for both liquid and icy water, the TIP4P/ICE. The water behavior inside nanotubes of different diameters has been studied upon cooling along the isobars at ambient pressure starting from temperatures where water is in a liquid state. We studied the liquid/solid transition, and we observed freezing temperatures higher than in bulk water and that depend on the diameter of the nanotube. The maximum freezing temperature found is 390 K, which is in remarkable agreement with the recent experimental measurements. We have also analyzed the ice structure called "ice nanotube" that water forms inside the single walled carbon nanotubes when it freezes. The ice forms observed are in agreement with previous results obtained with different water models. A novel finding, a partial proton ordering, is evidenced in our ice nanotubes at finite temperature. PMID- 29040803 TI - Synthesis and Characterization of Fatty Acid Grafted Chitosan Polymer and Their Nanomicelles for Nonviral Gene Delivery Applications. AB - The aim of this study was to synthesize and characterize fatty acid-grafted chitosan (fatty acid-g-CS) polymer and their nanomicelles for use as carriers for gene delivery. CS was hydrophobically modified using saturated fatty acids of increasing fatty acyl chain length. Carbodiimide along with N-hydroxysuccinimide was used for coupling carboxyl group of fatty acids with amine groups of CS. Proton nuclear magnetic resonance and Fourier transform infrared spectroscopy were used to quantify fatty acyl substitution onto CS backbone. The molecular weight distribution of the synthesized polymers was determined using size exclusion high performance liquid chromatography and was found to be in range of the parent CS polymer (~50 kDa). The critical micelle concentration (cmc) of the polymers was determined using pyrene as a fluorescent probe. The cmc was found to decrease with an increase in fatty acyl chain length. The amphiphilic fatty acid g-CS polymers self-assembled in an aqueous environment to form nanomicelles of ~200 nm particle size and slightly positive net charge due to the cationic nature of free primary amino groups on CS molecule. These polymeric nanomicelles exhibited excellent hemo- and cytocompatibility, as evaluated by in vitro hemolysis and MTT cell viability assay, respectively, and showed superior transfection efficiency compared to unmodified chitosan and naked DNA. The surface of these nanomicelles can be further modified with ligands allowing for selective targeting, enhanced cell binding, and internalization. These nanomicelles can thus be exploited as potential nonviral gene delivery vectors for safe and efficient gene therapy. PMID- 29040804 TI - Mechanochemical Synthesis of Carbon Nanothread Single Crystals. AB - Synthesis of well-ordered reduced dimensional carbon solids with extended bonding remains a challenge. For example, few single-crystal organic monomers react under topochemical control to produce single-crystal extended solids. We report a mechanochemical synthesis in which slow compression at room temperature under uniaxial stress can convert polycrystalline or single-crystal benzene monomer into single-crystalline packings of carbon nanothreads, a one-dimensional sp3 carbon nanomaterial. The long-range order over hundreds of microns of these crystals allows them to readily exfoliate into fibers. The mechanochemical reaction produces macroscopic single crystals despite large dimensional changes caused by the formation of multiple strong, covalent C-C bonds to each monomer and a lack of reactant single-crystal order. Therefore, it appears not to follow a topochemical pathway, but rather one guided by uniaxial stress, to which the nanothreads consistently align. Slow-compression room-temperature synthesis may allow diverse molecular monomers to form single-crystalline packings of polymers, threads, and higher dimensional carbon networks. PMID- 29040805 TI - Electrochemical Capacitance of CO-Terminated Pt(111) Dominated by the CO-Solvent Gap. AB - The distribution of electric fields within the electrochemical double layer depends on both the electrode and electrolyte in complex ways. These fields strongly influence chemical dynamics in the electrode-electrolyte interface but cannot be measured directly with submolecular resolution. We report experimental capacitance measurements for aqueous interfaces of CO-terminated Pt(111). By comparing these measurements with first-principles density functional theory (DFT) calculations, we infer microscopic field distributions and decompose contributions to the inverse capacitance from various spatial regions of the interface. We find that the CO is strongly electronically coupled to the Pt and that most of the interfacial potential difference appears across the gap between the terminating O and water and not across the CO molecule, as previously hypothesized. This "gap capacitance" resulting from hydrophobic termination lowers the overall capacitance of the aqueous Pt-CO interface and makes it less sensitive to electrolyte concentration compared to the bare metal. PMID- 29040806 TI - Bacterial Derived Carbohydrates Bind Cyr1 and Trigger Hyphal Growth in Candida albicans. AB - The dimorphic yeast Candida albicans is the most common pathogenic fungus found in humans. While this species is normally commensal, a morphological switch from budding yeast to filamentous hyphae allows the fungi to invade epithelial cells and cause infections. The phenotypic change is controlled by the adenylyl cyclase, Cyr1. Interestingly, this protein contains a leucine-rich repeat (LRR) domain, which is commonly found in innate immune receptors from plants and animals. A functional and pure LRR domain was obtained in high yields from E. coli expression. Utilizing a surface plasmon resonance assay, the LRR was found to bind diverse bacterial derived carbohydrates with high affinity. This domain is capable of binding fragments of peptidoglycan, a carbohydrate polymer component of the bacterial cell wall, as well as anthracyclines produced by Streptomyces, leading to hyphae formation. These findings add another dimension to the human microbiome, taking into account yeast-bacteria interactions that occur in the host. PMID- 29040807 TI - Photochemical Control over Oscillations in Chemical Reaction Networks. AB - Systems chemistry aims to emulate the functional behavior observed in living systems by constructing chemical reaction networks (CRNs) with well-defined dynamic properties. Future expansion of the complexity of these systems would require external control to tune behavior and temporal organization of such CRNs. In this work, we design and implement a photolabile probe, which upon irradiation strengthens the negative feedback loop of a CRN that produces oscillations of trypsin under out-of-equilibrium conditions. By changing the timing and duration of irradiation, we can tailor the temporal response of the network. PMID- 29040808 TI - Independently Tuning the Biochemical and Mechanical Properties of 3D Hyaluronan Based Hydrogels with Oxime and Diels-Alder Chemistry to Culture Breast Cancer Spheroids. AB - For native breast cancer cell growth to be mimicked in vitro as spheroids, a well defined matrix that mimics the tumor microenvironment is required. Finding a biomimetic material for 3D cell culture other than Matrigel has challenged the field. Because hyaluronan is naturally abundant in the tumor microenvironment and can be chemically modified, we synthesized a hyaluronan (HA) hydrogel with independently tunable mechanical and chemical properties for 3D culture of breast cancer cells. By modifying HA with distinct bioorthogonal functional groups, its mechanical properties are controlled by chemical cross-linking via oxime ligation, and its biochemical properties are controlled by grafting bioactive peptides via Diels-Alder chemistry. A series of hydrogels were screened in terms of stiffness and peptide composition for cancer spheroid formation. In the optimal hydrogel formulation, the 3D breast cancer spheroids showed decreased drug diffusion into their core and upregulation of cellular multidrug-resistant efflux pumps similar to what is observed in drug-resistant tumors. Our results highlight the potential of these tunable and well-defined gels in drug screening assays. PMID- 29040809 TI - Membrane Permeability of Fatty Acyl Compounds Studied via Molecular Simulation. AB - Interest in fatty acid-derived products as fuel and chemical precursors has grown substantially. Microbes can be genetically engineered to produce fatty acid derived products that are able to cross host membranes and can be extracted into an applied organic overlay. This process is thought to be passive, with a rate dependent on the chemistry of the crossing compound. The relationship between the chemical composition and the energetics and kinetics of product accumulation within the overlay is not well understood. Through biased and unbiased molecular simulation, we compute the membrane permeability coefficients from production to extraction for different fatty acyl products, including fatty acids, fatty alcohols, fatty aldehydes, alkanes, and alkenes. These simulations identify specific interactions that accelerate the transit of aldehydes across the membrane bilayer relative to other oxidized products, specifically the lack of hydrogen bonds to the surrounding membrane environment. However, since extraction from the outer membrane leaflet into the organic phase is found to be rate limiting for the entire process, we find that fatty alcohols and fatty aldehydes would both manifest similar fluxes into a dodecane overlay under equivalent conditions, outpacing the accumulation of acids or alkanes into the organic phase. Since aldehydes are known to be highly reactive as well as toxic in high quantities, the findings suggest that indeed fatty alcohols are the optimal long tail fatty acyl product for extraction. PMID- 29040810 TI - Photothermal Nanoparticle Initiation Enables Radical Polymerization and Yields Unique, Uniform Microfibers with Broad Spectrum Light. AB - Photothermal processes are utilized across a variety of fields, from separations to medicine, and are an area of active research. Herein, the action of a solar simulator upon carbon black nanoparticles is shown to result in photothermally initiated chain-growth polymerization of methyl acrylate, butyl acrylate, and methyl methacrylate initiated by benzoyl peroxide. With use of methyl acrylate as the model system, products from this reaction are shown to be apparently indistinguishable on the molecular level, but result in unique microstructures relative to the thermal controls. The relative contribution of bands of the UV/visible spectrum to the polymerization initiation show that red/infrared wavelengths are most important for the initiation to occur. Kinetic analysis of the initiator homolysis indicate that the apparent reaction rate is accelerated in the photothermal condition. PMID- 29040811 TI - Mobile emergency simulation training for rural health providers. AB - INTRODUCTION: Mobile emergency simulation offers innovative continuing medical educational support to regions that may lack access to such opportunities. Furthermore, satisfaction is a critical element for active learning. Together, the authors evaluated Canadian rural healthcare providers' satisfaction from high fidelity emergency simulation training using a modified motorhome as a mobile education unit (MEU). METHODS: Over a 5-month period, data was collected during 14 educational sessions in nine different southern Manitoban communities. Groups of up to five rural healthcare providers managed emergency simulation cases including polytrauma, severe sepsis, and inferior myocardial infarction with right ventricular involvement, followed by a debrief. Participants anonymously completed a feedback form that contained 11 questions on a five-point Likert scale and six short-answer questions. RESULTS: Data from 131 respondents were analyzed, for a response rate of 75.6%. Respondents included nurses (27.5%), medical residents (26.7%), medical first responders (16.0%), and physicians (12.2%). The median response was 5 for overall quality of learning, development of clinical reasoning skills and decision-making ability, recognition of patient deterioration, and self-reflection. The post-simulation debrief median response was also 5 for summarizing important issues, constructive criticism, and feedback to learn. Respondents also reported that the MEU provided a believable working environment (87.0%, n=114), they had limited or no previous access to high fidelity mannequins (82.7%, n=107), and they had no specific training in crisis resource management or were unfamiliar with the term (92%, n=118). CONCLUSIONS: A high level of satisfaction was reported in rural health providers with mobile emergency simulation. Access to and experience with high fidelity mannequins was limited, suggesting areas for potential educational growth. PMID- 29040812 TI - A randomized, controlled, crossover study of appetite-related sensations after consuming snacks made from buckwheat. AB - With the rising incidence of overweight and obesity in developed countries, there is an interest in developing food products that may aid in satiety and reduce energy intake. Buckwheat (Fagopyrum esculentum) is a gluten-free edible seed that has been previously shown to induce changes in postprandial concentrations of satiety hormones; however, subjective measures of appetite-related sensations and objective measures of energy intake at subsequent meals following buckwheat consumption have not been measured. Thirty-eight healthy adults were recruited to participate in a randomized, controlled, crossover trial with the main objective to determine if consuming snacks made from buckwheat would increase satiety and reduce energy intake compared with snacks comparable in serving size, physical characteristics, and nutrient composition. Water was included as a no-kilocalorie control. Participants received each of the treatments once separated by at least 7 days. Appetite related sensations were assessed using visual analog scales at fasting and after consuming the snack at 30-min intervals for 180 min. Lunch was provided at the clinic and the amount of food consumed was weighed. Participants recorded food intake for the rest of the day. Consuming buckwheat groats (32 g serving; 141 kcal) or pita bread made from buckwheat flour (50 g serving; 135 kcal) was not associated with changes in appetite related sensations or energy consumption compared with reference snack products made from corn or rice flour. Sensory questionnaires revealed that snacks made from buckwheat were liked to a similar degree or more as reference snack products, which shows commercial promise for developing buckwheat-containing snacks. PMID- 29040813 TI - Developmental neurotoxic effects of a low dose of TCE on a 3-D neurosphere system. AB - Trichloroethylene (TCE) is one of the industrial toxic byproducts that now persist in the air, soil, and water. Several studies have already illustrated the toxic effect of high doses of TCE on the biological functions of several organs. This study aims to highlight the toxic impact of a low dose of TCE (1 MUmol/L) on the development of rat neural stem cells (NSCs). The subventricular zones (SVZ) of rat pup's brains were collected and minced, and the harvested cells were cultured in the presence of neural growth factors B27/N2 to develop neurospheres. The cells were then exposed to a dose of 1 MUmol/L TCE for 1 or 2 weeks. The outcomes indicated a remarkable inhibitory effect of TCE on the differentiation capacity of NSCs, which was confirmed by down-regulation of the astrocyte marker GFAP The inhibitory effect of TCE on the proliferation of NSCs was identified by the reductions in neurosphere diameter, Ki67 expression, and cell cycle arrest at the G1/S phase. Immunolabelling with annexin V indicated the proapoptotic effect of TCE exposure. PCR results revealed a TCE-mediated suppression of the expression of the antioxidant enzyme SOD1. This paper illustrates, for the first time, a detailed examination of the toxic effects of an environmentally low dose of TCE on NCSs at the transcriptional, translational, and functional levels. PMID- 29040814 TI - Inhibiting polo-like kinase 1 enhances radiosensitization via modulating DNA repair proteins in non-small-cell lung cancer. AB - To assure faithful chromosome segregation, cells make use of the spindle assembly checkpoint, which can be activated in aneuploid cancer cells. In this study, the efficacies of inhibiting polo-like kinase 1 (PLK1) on the radiosensitization of non-small-cell lung cancer (NSCLC) cells were studied. Clonogenic survival assay was performed to identify the effects of the PLK1 inhibitor on radiosensitivity within NSCLC cells. Mitotic catastrophe assessment was used to measure the cell death and histone H2AX protein (gammaH2AX) foci were utilized to assess the DNA double-strand breaks (DSB). The transcriptome was analyzed via unbiased profiling of microarray expression. The results showed that the postradiation mitotic catastrophe induction and the DSB repair were induced by PLK1 inhibitor BI-6727, leading to an increase in the radiosensitivity of NSCLC cells. BI-6727 in combination with radiation significantly induced the delayed tumor growth. PLK1 silenced NSCLC cells showed an altered mRNA and protein expression related to DNA damaging, replication, and repairing, including the DNA-dependent protein kinase (DNAPK) and topoisomerase II alpha (TOPO2A). Furthermore, inhibition of PLK1 blocked 2 important DNA repair pathways. To summarize, our study showed PLK1 kinase as an option in the therapy of NSCLC. PMID- 29040816 TI - Lamin A/C mutation associated with lipodystrophy influences adipogenic differentiation of stem cells through interaction with Notch signaling. AB - Lamins A and C are involved in many cellular functions, owing to its ability to bind chromatin and transcription factors and affect their properties. Mutations of the LMNA gene encoding lamin A/C affect differentiation capacity of stem cells. However, the signaling pathways involved in interactions with lamins during cellular differentiation remain unclear. Lipodystrophy associated with LMNA mutation R482L causes loss of fat tissue. In this study we investigated the role of LMNA mutation R482L in modulating Notch signaling activity in the adipogenic differentiation of mesenchymal stem cells. Notch was activated using lentiviral Notch intracellular domain. Activation of Notch was estimated through the expression of Notch-responsive genes by qPCR and by activation of a luciferase CSL-reporter construct. The effect of LMNA mutation on Notch activation and adipogenic differentiation was analyzed in cells bearing lentiviral LMNA WT or LMNA R482L. We show that, when Notch is activated, LMNA R482L contributes to down-regulation of Notch activation in undifferentiated and differentiated cells, and decreases adipogenic differentiation. Thus, lamin A/C interacts with Notch signaling, thereby influencing cellular differentiation, and point mutation in LMNA could halt this interaction. PMID- 29040815 TI - The role of folic acid and selenium against oxidative damage from ethanol in early life programming: a review. AB - There are disorders in children, covered by the umbrella term "fetal alcohol spectrum disorder" (FASD), that occur as result of alcohol consumption during pregnancy and lactation. They appear, at least in part, to be related to the oxidative stress generated by ethanol. Ethanol metabolism generates reactive oxygen species and depletes the antioxidant molecule glutathione (GSH), leading to oxidative stress and lipid and protein damage, which are related to growth retardation and neurotoxicity, thereby increasing the incidence of FASD. Furthermore, prenatal and postnatal exposure to ethanol in dams, as well as increasing oxidation in offspring, causes malnutrition of several micronutrients such as the antioxidant folic acid and selenium (Se), affecting their metabolism and bodily distribution. Although abstinence from alcohol is the only way to prevent FASD, it is possible to reduce its harmful effects with a maternal dietary antioxidant therapy. In this review, folic acid and Se have been chosen to be analyzed as antioxidant intervention systems related to FASD because, like ethanol, they act on the methionine metabolic cycle, being related to the endogenous antioxidants GSH and glutathione peroxidase. Moreover, several birth defects are related to poor folate and Se status. PMID- 29040817 TI - Potential for mcl-PHA production from nonanoic and azelaic acids. AB - Greater than 65% of canola and high-oleic soy oil fatty acids is oleic acid, which is readily converted to nonanoic (NA) and azelaic (AzA) acids by ozonolysis. NA is an excellent substrate for medium-chain-length polyhydroxyalkanoate (mcl-PHA) production but AzA has few uses. Pseudomonas citronellolis DSM 50332 and Pseudomonas fluorescens ATCC 17400, both able to produce mcl-PHA from fatty acids and to grow on AzA as the sole source of carbon and energy, were assessed for the accumulation of mcl-PHA from AzA and NA. In N limited shake flasks using NA, P. citronellolis produced 32% of its dry biomass as mcl-PHA containing 78% 3-hydroxynonanoate with 22% 3-hydroxyheptanoate. Pseudomonas fluorescens produced only 2% PHA. N-limited P. citronellolis on AzA produced 20% dry weight PHA containing 75% 3-hydroxydecanoate and 25% 3 hydroxyoctanoate, indicative of de novo synthesis. Although selective pressure, including beta-oxidation inhibition, under well-controlled (chemostat) conditions was applied to P. citronellolis, no side-chain carboxyl groups were detected. It was concluded that one or more of FabG and PhaJ or the PHA synthase cannot catalyze reactions involving omega-carboxy substrates. However, a process based on oleic acid could be established if Pseudomonas putida was engineered to grow on AzA. PMID- 29040819 TI - Velopharyngeal Insufficiency and Hypernasal Voice: 15 Years' Experience With Furlow Palatoplasty. PMID- 29040818 TI - Metformin attenuates ER stress-induced mitochondrial dysfunction. AB - Endoplasmic reticulum (ER) stress, a disturbance of the ER function, contributes to cardiac injury. ER and mitochondria are closely connected organelles within cells. ER stress contributes to mitochondrial dysfunction, which is a key factor to increase cardiac injury. Metformin, a traditional anti-diabetic drug, decreases cardiac injury during ischemia-reperfusion. Metformin also inhibits ER stress in cultured cells. We hypothesized that metformin can attenuate the ER stress-induced mitochondrial dysfunction and subsequent cardiac injury. Thapsigargin (THAP, 3 mg/kg) was used to induce ER stress in C57BL/6 mice. Cell injury and mitochondrial function were evaluated in the mouse heart 48 hours after 1-time THAP treatment. Metformin was dissolved in drinking water (0.5 g/250 ml) and fed to mice for 7 days before THAP injection. Metformin feeding continued after THAP treatment. THAP treatment increased apoptosis in mouse myocardium compared to control. THAP also led to decreased oxidative phosphorylation in heart mitochondria-oxidizing complex I substrates. THAP decreased the calcium retention capacity, indicating that ER stress sensitizes mitochondria to mitochondrial permeability transition pore opening. The cytosolic C/EBP homologous protein (CHOP) content was markedly increased in THAP-treated hearts compared to control, particularly in the nucleus. Metformin prevented the THAP induced mitochondrial dysfunction and reduced CHOP content in cytosol and nucleus. Thus, metformin reduces cardiac injury during ER stress through the protection of cardiac mitochondria and attenuation of CHOP expression. PMID- 29040821 TI - Dietary Intake and Omega-3 DHA Status in Pregnant Women Who Are Overweight. AB - OBJECTIVE: To estimate dietary intake of pregnant women who are overweight, assess their omega-3 docosahexaenoic acid (DHA) status, and compare results between Black and White women. DESIGN: Cross-sectional study with a longitudinal component (dietary assessment). SETTING: Outpatient clinics at Woman's Hospital, Baton Rouge, Louisiana and telephone calls. PARTICIPANTS: Pregnant women (N = 21) who were overweight (body mass index = 25.0-29.9 kg/m2). METHODS: Repeated 24 hour dietary recalls using the University of Minnesota Nutrition Data System for Research were conducted to determine nutrient intakes. Red blood cell fatty acids were analyzed with gas chromatography to determine omega-3 DHA status. Descriptive statistics, one- and two-sample t tests, Fisher's exact tests, chi square test, and analysis of covariance were used to analyze data. RESULTS: On average, participants consumed 72 +/- 63 mg omega-3 DHA/day. Age, race, and socioeconomic status did not affect the probability of achieving recommended omega-3 DHA dietary intake (p > .05). Black women had lower omega-3 DHA status (7.98 +/- 0.94 weight percentage) than White women (9.29 +/- 1.68 weight percentage; p <= .05). CONCLUSION: Analysis of our data suggests a need for nutrition education regarding the benefits of omega-3 DHA consumption during pregnancy for women of childbearing age. The current finding warrants further exploration. PMID- 29040820 TI - Systematic Review of the Effect of Enteral Feeding on Gut Microbiota in Preterm Infants. AB - OBJECTIVE: To examine the effect of feeding type on microbial patterns among preterm infants and to identify feeding factors that promote the colonization of beneficial bacteria. DATA SOURCES: PubMed, Cochrane Database of Systematic Reviews, Scopus, and the Cummulative Index of Nursing and Allied Health Literature were thoroughly searched for articles published between January 2000 and January 2017, using the keywords gut microbiome, gut microbiota, enteral microbiome, enteral microbiota, premature infant, preterm infant, extremely low birth weight infant, ELBW infant, very low birth weight infant, feeding, breast milk, breastfeeding, formula, prebiotic, probiotic, and long chain polyunsaturated fatty acid. STUDY SELECTION: Primary studies written in English and focused on the association between enteral feeding and gut microbiome patterns of preterm infants were included in the review. DATA EXTRACTION: We independently reviewed the selected articles and extracted information using predefined data extraction criteria including study design, study participants, type of feeding, type and frequency of biospecimen (e.g., feces, gastric aspirate) collection, microbiological analysis method, and major results. DATA SYNTHESIS: In 4 of the 18 studies included in the review, researchers described the effects of milk products (mothers' own milk, donor human milk, and formula). In 5 studies, the effects of prebiotics were assessed, and in 9 studies, the effects of probiotics on the gut microbiome were described. Mothers' own breast milk feeding influenced the compositional structure of preterm infants' gut microbial community and increased diversity of gut microbiota compared with donor human milk and formula feeding. The results of the use of prebiotics and probiotics varied among studies; however, the majority of the researchers reported positive bifidogenic effects on the development of beneficial bacteria. CONCLUSION: Mothers' own milk is considered the best form of nutrition for preterm infants and the gut microbial community. Variation in fatty acid composition across infant feeding types can affect microbial composition. The evidence for supplementation of prebiotics and probiotics to promote the gut microbial community structure is compelling; however, additional research is needed in this area. PMID- 29040822 TI - Removal of lead and bisphenol A using magnesium silicate impregnated palm-shell waste powdered activated carbon: Comparative studies on single and binary pollutant adsorption. AB - In this work, palm shell waste powder activated carbon coated by magnesium silicate (PPAC-MS) were synthesized by the impregnation of magnesium silicate (MgSiO3) using economical material (silicon dioxide powder) via mild hydrothermal approach for the first time. As an effective adsorbent, PPAC-MS simultaneously removes BPA and Pb(II) in single and binary mode. Surprisingly, PPAC-MS exhibited a homogeneous thin plate mesh-like structure, as well as meso- and macropores with a high surface area of 772.1m2g-1. Due to its specific morphological characteristics, PPAC-MS had adsorption capacities of Pb(II) as high as 419.9mgg 1 and 408.8mgg-1 in single mode and binary mode based on Freudliuch isotherm model while those for BPA by PPAC-MS were 168.4mgg-1 and 254.7mgg-1 for single mode and binary modes corresponding to Langmuir isotherm model. Experiment results also indicated that the synergistic removal of BPA occurred because the precipitation process of Pb(II) leads to the co-precipitation of BPA with Pb(OH)2 compound. PPAC-MS showed a good reusability for 5 regeneration cycles using Mg(II) solution followed by thermal treatment. Overall, PPAC-MS has a high potential in the treatment process for wastewater containing both toxic heavy metals and emerging pollutants due to its high sorption capacities and reusability. PMID- 29040823 TI - Urea increased nickel and copper accumulation in the leaves of Egeria densa (Planch.) Casp. and Ceratophyllum demersum L. during short-term exposure. AB - In the present study, two fresh water plant species Egeria densa (Planch.) Casp. and Ceratophyllum demersum L. were subjected to separate and combined action of urea (2mM) and metals (Ni and Cu, 10MUM) to investigate the phytoremediation potential of these two submerged macrophytes during short-term experiments (48h). Both submerged macrophytes demonstrated high accumulative potential for Ni and Cu (average bioconcentration factors were 2505 for Ni and 3778 for Cu). The urea (2 mM) was not significantly toxic for studied plant species. Futhermore, urea worked as an additional source of nitrogen and stimulated some metabolic processes such as the synthesis of photosynthetic pigments, soluble proteins, non enzymatic antioxidants, and activated some enzymes. Adding urea to the metals increased their accumulation in both macrophytes (on average by 35% for Ni and 15% for Cu). Combined action of urea and Ni did not have a significant effect on antioxidant response, but caused a sharp increase of urease activity (4 folds on an average) in both plants. The copper exerted a stronger toxic effect on both studied macrophytes compared to nickel. Adding urea to copper in some cases diminished the toxic action of this metal. Study concludes that the responses of E. densa and C. demersum to urea and metal action (separate and combined) were depended on the type of pollutant and the activity of antioxidant defence system. Therefore, the studied aquatic macrophytes found to be potential phytoremediators of water bodies, the addition of an organic nitrogen source in the form of urea in environmentally relevant concentration will increase the efficiency of phytoextraction of metals. PMID- 29040824 TI - Perceived harm as a mediator of the relationship between social norms and marijuana use and related consequences among American Indian youth. AB - BACKGROUND: American Indian (AI) youth are at increased risk for marijuana use with marijuana use rates on or near reservations 1.6-4.8 times higher compared to non-AI youth in the same regions (Stanley et al., 2014). One outcome of the changing social and legal acceptance of marijuana is a decrease in perceived risk among adolescents. It is unknown whether these changes in perceptions of marijuana-related harm will presage higher rates of use among AI youth. Perceptions of others use (i.e., descriptive norms) and approval (i.e., injunctive norms) are consistent predictors of marijuana use and consequences. Moreover, large scale surveys have shown that gender is an important moderator of the relationship between norms and marijuana use in AI samples. METHOD: The current study is a large epidemiologic study of 7th-12th grade self-identified American Indian students (N=3050). We examined the direct relations between descriptive and injunctive norms and marijuana use/consequences among AI youth, as well as the mediating role of perceived harm and the moderating role of gender. RESULTS: Results of a multi-group path analysis revealed a similar pattern of findings for males and females. In addition, there were direct effects for descriptive but not injunctive norms on marijuana use/consequences, and the sequential pathway from norms to use/consequences via perceived harm held. DISCUSSION: Findings suggest that normative perceptions and perceived harm are antecedents of marijuana use/consequences and are prime targets for large scale interventions on AI reservations. PMID- 29040825 TI - Comparing the predictive validity of the four-factor and five-factor (bifactor) measurement structures of the drinking motives questionnaire. AB - INTRODUCTION: The Drinking Motives Questionnaire (DMQ-R) is the most widely administered instrument to assess reasons for consuming alcohol and is conventionally premised on a four-factor structure. Recent research instead reveals that a bifactor measurement model of five motive factors (one general and four specific) represents a superior psychometric embodiment of the scale. The current study evaluated and compared the predictive validity of the four-factor and five-factor models of drinking motives in longitudinally explaining alcohol use and problems. METHODS: Adult participants (N=413; age range=18-79 years) completed measures of drinking motives (Time 1) and alcohol use and problems one month later (Time 2). RESULTS: Confirmatory factor analyses corroborated the four factor (social, enhancement, conformity, and coping motives) and five-factor (each item double loading on general motives and a specific motives factor) measurement structures, but the latter rendered stronger fit indices. Structural equation models revealed that lower social motives, higher enhancement motives, and higher coping motives prospectively contributed to alcohol use. Furthermore, lower social motives, higher conformity motives, higher coping motives, and greater alcohol use contributed to alcohol problems. DISCUSSION: The same set of paths emerged as significantly predictive in both models, but general motives additionally explained alcohol use and problems in the five-factor model. The incremental contribution of general motives (beyond the specific motives) on alcohol intake and detrimental consequences supports the predictive validity of the drinking reasons paradigm embodied by the inclusion of a global factor. PMID- 29040826 TI - Maintenance on naltrexone+amphetamine decreases cocaine-vs.-food choice in male rhesus monkeys. AB - BACKGROUND: Cocaine use disorder remains a significant public health issue for which there are no FDA-approved pharmacotherapies. Amphetamine maintenance reduces cocaine use in preclinical and clinical studies, but the mechanism of this effect is unknown. Previous studies indicate a role for endogenous opioid release and subsequent opioid receptor activation in some amphetamine effects; therefore, the current study examined the role of mu-opioid receptor activation in d-amphetamine treatment effects in an assay of cocaine-vs-food choice. METHODS: Adult male rhesus monkeys with double-lumen intravenous catheters responded for concurrently available food pellets and cocaine injections (0 0.1mg/kg/injection) during daily sessions. Cocaine choice and overall reinforcement rates were evaluated during 7-day treatments with saline or test drugs. RESULTS: During saline treatment, cocaine maintained a dose-dependent increase in cocaine-vs.-food choice. The mu-opioid receptor agonist morphine (0.032-0.32mg/kg/h) dose-dependently increased cocaine choice and decreased rates of reinforcement. A dose of the mu-selective opioid receptor antagonist naltrexone (0.0032mg/kg/h) that completely blocked morphine effects had no effect on cocaine choice when it was administered alone, but it enhanced the effectiveness of a threshold dose of 0.032mg/kg/h amphetamine to decrease cocaine choice without also enhancing nonselective behavioral disruption by this dose of amphetamine. Conversely, the kappa-selective opioid antagonist norbinalorphimine did not enhance amphetamine effects on cocaine choice. CONCLUSIONS: These results suggest that amphetamine maintenance produces mu opioid-receptor mediated effects that oppose its anti-cocaine effects. Co-administration of naltrexone may selectively enhance amphetamine potency to decrease cocaine choice without increasing amphetamine potency to produce general behavioral disruption. PMID- 29040828 TI - Neuropsychological functioning and brain energetics of drug resistant mesial temporal lobe epilepsy patients. AB - Interictal hypometabolism is commonly measured by 18-fluoro-deoxyglucose Positron Emission Tomography (FDG-PET) in the temporal lobe of patients with mesial temporal lobe epilepsy (MTLE-HS). Left temporal lobe interictal FDG-PET hypometabolism has been associated with verbal memory impairment, while right temporal lobe FDG-PET hypometabolism is associated with nonverbal memory impairment. The biochemical mechanisms involved in these findings remain unknown. In comparison to healthy controls (n=21), surgically treated patients with MTLE HS (n=32, left side=17) had significant lower scores in the Rey Auditory Verbal Learning Test (RAVLT retention and delayed), Logical Memory II (LMII), Boston Naming test (BNT), Letter Fluency and Category Fluency. We investigated whether enzymatic activities of the mitochondrial enzymes Complex I (C I), Complex II (C II), Complex IV (C IV) and Succinate Dehydrogenase (SDH) from the resected samples of the middle temporal neocortex (mTCx), amygdala (AMY) and hippocampus (HIP) were associated with performance in the RAVLT, LMII, BNT and fluency tests of our patients. After controlling for the side of hippocampus sclerosis, years of education, disease duration, antiepileptic treatment and seizure outcome after surgery, no independent associations were observed between the cognitive test scores and the analyzed mitochondrial enzymatic activities (p>0.37). Results indicate that memory and language impairment observed in MTLE-HS patients are not strongly associated with the levels of mitochondrial CI, CII, SDH and C IV enzymatic activities in the temporal lobe structures ipsilateral to the HS lesion. PMID- 29040827 TI - Effects of lorcaserin (Belviq(r)) on nicotine- and food-maintained responding in non-human primates. AB - BACKGROUND: Accumulating evidence suggests that the FDA-approved serotonin 5-HT2C receptor agonist, lorcaserin (Belviq(r)), may be a promising candidate for the management of substance use disorders, including nicotine addiction. The present study was conducted to determine the efficacy and selectivity of acute or continuous lorcaserin treatment for decreasing the reinforcing effects of nicotine in a primate species. METHODS: Adult rhesus monkeys (n=4) with a history of nicotine self-administration (>2years) responded for injections of nicotine (0.32-100MUg/kg IV) or food pellets under a fixed-ratio schedule of reinforcement during daily 100-min sessions. When responding was stable, lorcaserin was administered either as an acute pretreatment (0.1-1.0mg/kg, IM) or by continuous infusion (0.1mg/kg/hr, SC for 3-5days). Daily activity patterns were also monitored immediately following experimental sessions. RESULTS: Results indicate that acute lorcaserin pretreatment produced significant and dose-dependent decreases in nicotine-maintained responding across a >100-fold range of self administered nicotine doses. Continuous lorcaserin treatment decreased intake of 10MUg/kg/inj nicotine to about 50% of baseline values. Food-maintained responding was only moderately decreased in 3 of 4 subjects after acute administration and unaffected in all subjects during continuous treatment. Daily activity also was significantly decreased-to <=50% of control values-following experimental sessions in which acute lorcaserin was administered. CONCLUSIONS: These data indicate that lorcaserin reduces IV self-administration of nicotine at a dose that decreases motoric activity but less consistently disrupts food-maintained responding. Further research into lorcaserin's potential utility for the management of nicotine dependence is warranted. PMID- 29040829 TI - Soybean-derived Bowman-Birk inhibitor (BBI) blocks HIV entry into macrophages. AB - Bowman-Birk inhibitor (BBI) is a soybean-derived protease inhibitor that has anti inflammation and anti-HIV effect. Here, we further investigated the anti-HIV action of BBI in macrophages, focusing on its effect on viral entry. We found that BBI could significantly block HIV entry into macrophages. Investigation of the mechanism(s) of the BBI action on HIV inhibition showed that BBI down regulated the expression of CD4 receptor (as much as 80%) and induced the production of the CC chemokines (up to 60 folds at protein level) in macrophages. This inhibitory effect of BBI on HIV entry could be blocked by the neutralization antibodies to CC chemokines. These findings indicate that BBI may have therapeutic potential as a viral entry inhibitor for the prevention and treatment of HIV infection. PMID- 29040830 TI - Combined toxicity of prevalent mycotoxins studied in fish cell line and zebrafish larvae revealed that type of interactions is dose-dependent. AB - While, Aflatoxin B1 (AFB1), deoxynivalenol (DON) and zearalenone (ZEN) are the most prevalent mycotoxins co-existing in grain products and animal feeds, little is known about their combinatorial toxicities on aquatic life-forms. We studied the individual and combined effects of these mycotoxins in a fish cell line (BF 2) and zebrafish larvae (wild-type and transgenic). The types of interactions in mycotoxins combinations on cell viability were determined by using Chou-Talalay model. Induction of oxidative stress pathway in mycotoxins-exposed BF-2 cells was assessed using high content screening (HCS). Mycotoxin-exposed wild-type zebrafish larvae were examined for mortality and morphological abnormalities and transgenic zebrafish larvae (expressing DsRed in the liver) were imaged using HCS and examined for liver abnormalities. Results showed that the cytotoxicity of mycotoxins in a decreasing order was AFB1>DON>ZEN, however, the highest mortality rate and liver damage in zebrafish were observed for AFB1 followed by ZEN. AFB1+DON and AFB1+ZEN synergistically enhanced the toxic effects on BF-2 cells and zebrafish while DON+ZEN showed antagonism. Interestingly, in the tertiary combination, the synergism seen at lower individual concentrations of mycotoxins progressively turned to an overall antagonism at higher doses. The results provide a scientific basis for the necessity to consider co-exposure when formulating risk-management strategies. PMID- 29040831 TI - Synergy in thrombin-graphene sponge for improved hemostatic efficacy and facile utilization. AB - Composites are attractive for its potential synergistic effects that can result in high-performance, but the synergy depends on subtle design. In this study, a hemostatic composite, a thrombin/cross-linked graphene sponge (TCGS), was developed through a facile gradient composite strategy. The porous structure of the CGS assures that the thrombin is stably embedded in the TCGS, avoiding a burst release but maintaining its bioactivity. In the synergy between proper thrombin stimulation and the fast absorption of the sponge, TCGS exhibits outstanding hemostatic performance, ultrafast bleeding cessation, within 100s, which is superior to both CGS and equal amounts of native thrombin. Lower or excessive thrombin dosages prolong the bleeding time. The study revealed that the balance between plasma absorption and thrombin stimulation at the interface is critical for improving hemostatic efficacy. TCGS is also highlighted for its biosafety and stability, even after 6 months of storage in environment. This potentially ultra-long shelf life is conducive to its practical applications. Therefore, TCGS not only provides a new strategy for developing a hemostatic composite but also provides a new method and understanding for the design of hemostatic materials. PMID- 29040832 TI - Biological evaluation of surface-modified magnetic nanoparticles as a platform for colon cancer cell theranostics. AB - Magnetic nanoparticles offer multiple possibilities for biomedical applications. Besides their physico-chemical properties, nanoparticle-cellular interactions are determinant for biological safety. In this work, magnetic nanoparticles were synthesized by one-shot precipitation or two-step reaction and coated with biocompatible polymers, such as poly(l-lysine) and poly(N,N-dimethylacrylamide-co acrylic acid), and carbohydrates, like l-ascorbic acid, d-galactose, d-mannose, and sucrose. The resulting magnetic nanoparticles were characterized by dynamic light scattering, FT-Raman spectroscopy, transmission electron microscopy, SQUID magnetometry, and Mossbauer spectroscopy. Ability of the nanoparticles to be used in theranostic applications was also evaluated, showing that coating with biocompatible polymers increased the heating efficiency. Nanoparticles synthesized by one-shot precipitation were 50% larger (~13nm) than those obtained by a two-step reaction (~8nm). Magnetic nanoparticles at concentrations up to 500MUgmL-1 were non-cytotoxic to L929 fibroblasts. Particles synthesized by one shot precipitation had little effect on viability, cell cycle and apoptosis of the three human colon cancer cell lines used: Caco-2, HT-29, and SW-480. At the same concentration (500MUgmL-1), magnetic particles prepared by a two-step reaction reduced colon cancer cell viability by 20%, affecting cell cycle and inducing cell apoptosis. Uptake of surface-coated magnetic nanoparticles by colon cancer cells was dependent on particle synthesis, surface coating and incubation time. PMID- 29040833 TI - A novel approach for UV-patterning with binary polymer brushes. AB - A mixed self-assembled monolayer (SAM) of an initiator (3-(2-bromo-2 isobutyryloxy)propyl triethoxysilane) for atom transfer radical polymerization (ATRP) and an agent (6-(triethoxysilyl)hexyl 2-(((methylthio)carbonothioyl)thio) 2-phenylacetate) for reversible addition-fragmentation chain transfer (RAFT) polymerization was constructed on the surface of a silicon wafer or glass plate by a silane coupling reaction. When a UV light at 254nm was irradiated at the mixed SAM through a photomask, the surface density of the bromine atom at the end of BPE in the irradiated region was drastically reduced by UV-driven scission of the BrC bond, as observed by X-ray photoelectron spectroscopy. Consequently, the surface-initiated (SI)-ATRP of 2-ethylhexyl methacrylate (EHMA) was used to easily construct the poly(EHMA) (PEHMA) brush domain. Subsequently, SI-RAFT polymerization of a zwitterionic vinyl monomer, carboxymethyl betaine (CMB), was performed. Using the sequential polymerization, the PCMB and PEHMA brush domains on the solid substrate could be very easily patterned. Patterning proteins and cells with the binary polymer brush is expected because the PCMB brush indicated strong suppression of protein adsorption and cell adhesion, and the PEHMA brush had non-polar properties. This technique is very simple and useful for regulating the shape and size of bio-fouling and anti-biofouling domains on solid surfaces. PMID- 29040834 TI - Effect of oil structure on cyclodextrin-based Pickering emulsions for bupivacaine topical application. AB - Cyclodextrins (CDs) coupled with oils forms an insoluble inclusion complex that is able to adsorb to the interface between oils and aqueous phases; it thereby stabilizes Pickering emulsions. Three types of oils (triglyceride, linear chain oil, and ring-structured oil) were chosen to work with CDs to prepare bupivacaine (BPC)-encapsulated Pickering emulsions. We also investigated the relationship between oils and CDs; as well as their influences on stability, drug-releasing capability and skin permeability. Particle sizes and microstructures were determined by dynamic light scattering and scanning electron microscopy, respectively. In vitro drug release studies and in vitro skin permeation studies were evaluated by using Franz diffusion model. Particle sizes of all Pickering emulsions were larger than 1MUm, and the morphology was spherical and covered with rough surfaces. BPC was released over an extended period, and the releasing ratios from Pickering emulsions were only 12.2%-23.1% after 48h. In skin permeation studies, compared with other formulations, a formula involved with ring-structured oil allowed the highest permeation amount through skin. However, after 24h of exposure, formulation operated with linear chain oil showed the highest skin-retaining amount. These results suggest that Pickering emulsions could regulate the target site of skin depending on various types of oil used. PMID- 29040835 TI - Effects of sodium beta-sitosteryl sulfate on the phase behavior of dipalmitoylphosphatidylcholine. AB - We have studied the phase behavior of dipalmitoylphosphatidylcholine (DPPC) containing sodium beta-sitosteryl sulfate (PSO4). PSO4 was found to lower the phase transition temperature of DPPC to a higher degree than cholesterol or beta sitosterol. It also gave rise to the formation of a modulated (ripple) phase (Pbeta) at low to moderate concentrations. At concentrations greater than 25 mol%, it completely changed the membrane into a fluid phase. This shows that PSO4 is capable of disordering the hydrocarbon chains of PC efficiently. The characteristics of PSO4 for fluidizing the membrane can be useful for the pharmaceutical and cosmetics industries. PMID- 29040836 TI - Surface-modified PLGA nanoparticles with chitosan for oral delivery of tolbutamide. AB - The main purpose of present study was to develop novel chitosan-modified polylactic-co-glycolicacid nanoparticles (CS@PLGA NPs) for improving the bio availability of tolbutamide (TOL). The TOL-loaded CS@PLGA NPs (TOL-CS@PLGA NPs) were fabricated with the solvent evaporation method. The cargo-free CS@PLGA NPs showed a diameter of 228.3+/-2.5nm monitored with a laser light particlesizer, and the transmission electron microscope (TEM) photographs revealed their "core shell" structures. The Zeta potential of the original PLGA NPs and the cargo-free CS@PLGA NPs was measured to be -20.2+/-3.21mV and 24.2+/-1.1mV, respectively. The changes in Zeta potential indicated the CS chains were coated on the surfaces of the original PLGA NPs. The thermal gravity analysis (TGA) curves suggested that the CS chains improved the thermostability of the original PLGA NPs. The results of cells viability indicated the cargo-free CS@PLGA NPs were nontoxicity. The in vitro release profiles suggested that TOL-CS@PLGA NPs could release TOL in pH 7.4 phosphate buffer solution (PBS) at a sustained manner. Streptozotocin (STZ) was employed to build the diabetic rat models. The physiological changes in the islet beta cells confirmed the obtaining of diabetic rats. After treatment by gavage, the TOL-CS@PLGA NPs showed an excellent hypoglycemic effect. Therefore, the TOL CS@PLGA NPs had a potential application in oral delivery of TOL. PMID- 29040837 TI - Grape intake reduces thrombin generation and enhances plasma fibrinolysis. Potential role of circulating procoagulant microparticles. AB - Phytochemicals contained in grapes down-regulate several prothrombotic pathways in vitro. We evaluated the effect of grape consumption on coagulation and fibrinolysis in healthy volunteers. Thirty subjects were enrolled: 20 were given grape (5 g/kg body weight/day for 3 weeks), while 10 served as controls. Blood samples were taken at baseline (T0), at the end of the grape diet (T1) and after 4-week wash-out (T2). Grape intake caused a significant decrease of the procoagulant and inflammatory responses of whole blood and/or mononuclear cells to bacterial lipopolysaccharide at both T1 and T2. At plasma level, grape diet decreased thrombin generation at T1 and T2, largely through a reduction in the number and/or activity of procoagulant microparticles. This anticoagulant effect resulted in the formation of clots that were more susceptible to fibrinolysis, mainly because of a lesser activation of thrombin activatable fibrinolysis inhibitor. No difference in any variables was detected in controls at the time points considered. In conclusion, chronic grape consumption induces sustained anticoagulant and profibrinolytic effects with potential benefits for human health. PMID- 29040838 TI - Nutrient sensing and metabolic changes after methionine deprivation in primary muscle cells of turbot (Scophthalmus maximus L.). AB - The low methionine content in plant-based diets is a major limiting factor for feed utilization by animals. However, the molecular consequences triggered by methionine deficiency have not been well characterized, especially in fish species, whose metabolism is unique in many aspects and important for aquaculture industry. In the present study, the primary muscle cells of turbot (Scophthalmus maximus L.) were isolated and treated with or without methionine for 12 h in culture. The responses of nutrient sensing pathways, the proteomic profiling of metabolic processes, and the expressions of key metabolic molecules were systematically examined. Methionine deprivation (MD) suppressed target of rapamycin (TOR) signaling, activated AMP-activated protein kinase (AMPK) and amino acid response (AAR) pathways. Reduced cellular protein synthesis and increased protein degradation by MD led to increased intracellular free amino acid levels and degradations. MD also reduced glycolysis and lipogenesis while stimulated lipolysis, thus resulted in decreased intracellular lipid pool. MD significantly enhanced energy expenditure through stimulated tricarboxylic acid (TCA) cycle and oxidative phosphorylation. Collectively, our results identified a comprehensive set of transcriptional, proteomic, and signaling responses generated by MD and provided the molecular insight into the integration of cell homeostasis and metabolic controls in fish species. PMID- 29040839 TI - Effects of the dietary carbohydrate-fat ratio on plasma phosphatidylcholine profiles in human and mouse. AB - Phosphatidylcholines (PCs), a major class of human plasma phospholipids, are composed of highly diverse fatty acids. Because the dietary carbohydrate-fat ratio alters the hepatic fatty acid metabolism, plasma fatty acids that bind PCs, which are secreted as lipoproteins from the liver, may be affected by long-term consumption of a high-carbohydrate diet or a high-fat diet. Therefore, in this study, we profiled the plasma PC species comprehensively in formulated dieting conditions to identify those phospholipid molecules that reflect the dietary carbohydrate-fat ratio. C57BL6J mice were fed diets containing different amounts of fat for 8 weeks, and plasma PC species were analyzed under fasting conditions using liquid chromatography-mass spectrometry. In addition, a cross-sectional study of 78 middle-aged Japanese men, who participated in health checkups, was conducted. Nutrient intakes were estimated by a brief self-administered diet history questionnaire. The plasma PC profiles changed depending on the dietary carbohydrate-fat ratio. Especially, PC (16:0/16:1) and PC (16:0/18:1) levels increased as the dietary carbohydrate-fat ratio increased in human and mouse, suggesting that these PC species reflected the increase in de novo lipogenesis and might become useful biomarkers of the dietary carbohydrate-fat ratio. Since these PCs act as ligands for peroxisome proliferator-activated receptor alpha, PC species reflecting the dietary carbohydrate-fat ratio may influence metabolism of glucose and lipids. PMID- 29040840 TI - Experiences of structural vulnerability among exotic dancers in Baltimore, Maryland: Co-occurring social and economic antecedents of HIV/STI risk. AB - BACKGROUND: Women who grow up in economic scarcity often face limited opportunities for upward mobility, as a result of challenges securing stable housing, quality education, and steady employment. Chronic instability may limit the capacity of women to protect themselves against HIV/STI-related harm when engaging in sexual activity or drug use. Characterizing the structural contexts that facilitate HIV/STI risk among women are critical to effective design and implementation of drug and sexual harm reduction interventions. METHODS: Semi structured in-depth interviews were completed with 25 female exotic dancers working in Baltimore City and County exotic dance clubs July 2014-May 2015. Using thematic analysis, interviews were examined to understand the nature of structural vulnerability experienced by dancers during their early lives through the initial months of exotic dancing, including an examination of the roles of drug use and social relationships in engagement of sexual risk behavior. RESULTS: Dancers depicted early experiences of social and economic disadvantage, which accumulated through early adulthood. Substance use emerged as an important subject for the majority of women, operating cyclically as both precursor to and product of accumulating social and economic hardship. Dancers revealed social strategies that buffered the effects of structural vulnerability and minimized exposure to workplace-related drug and sexual harms. CONCLUSION: This study provides insight on an understudied group of at-risk women with a unique demographic profile. Findings illustrate how the effects of structural vulnerability, substance abuse, social strategies, and opportunities for economic gain through sexual services in the workplace converge to produce varying levels of HIV/STI risk among exotic dancers. PMID- 29040841 TI - "Caught with a body" yet protected by law? Calling 911 for opioid overdose in the context of the Good Samaritan Law. AB - BACKGROUND: To address soaring opioid overdose fatality rates, 41U.S. states have passed Good Samaritan Laws (GSLs) extending legal immunity to overdose bystanders who call for emergency assistance. This study, conducted during the period that followed implementation of a GSL, aimed to characterize current factors determining the decision to call for emergency medical help (911) at the scene of an overdose with specific attention to exploring the role of the GSL as one such factor in decision-making. METHODS: We conducted 22 in-depth interviews with needle exchange program clients in Baltimore, MD. RESULTS: Most participants reported calling 911 or witnessing a 911 call after drug overdose, but widely remained fearful of arrest for drug or paraphernalia possession, homicide, outstanding warrants, and/or trespassing. These concerns were underpinned by a history of police maltreatment and threat, and strong distrust of police; concerns which were specifically related to perceptions of police conduct at the scene of an overdose as well as perceptions of police conduct in general. Additional considerations included: fear of losing housing, informal shelter or custody of children; encountering social stigma; and facing violent and fatal repercussions at the hands of local drug dealers. Additionally, some participants did not perceive a significant enough medical risk to call 911. Two thirds of participants were unaware of the GSL. Some believed a GSL would positively impact law enforcement behaviour and increase the likelihood of a bystander call; but due to distrust of police, others believed the GSL would have little influence on bystander decisions. CONCLUSION: Insights from overdose bystanders during the post-implementation period of a Good Samaritan Law demonstrate persistent deterrents to bystanders calling 911 after overdose. Additional measures are needed to align policy aims with lived experiences of overdose bystanders, and to achieve overdose prevention aims. PMID- 29040842 TI - Cytotoxic dihydrobenzofuran neolignans from Mappianthus iodoies. AB - Three new dihydrobenzofuran neolignans, mappiodoinins A-C (1-3), together with nine known analogues (4 -12) were isolated from the stems and leaves of Mappianthus iodoies. Their structures with the absolute configurations were elucidated by extensive spectroscopic methods. This is the first time to find dihydrobenzofuran neolignans from the genus Mappianthus. All isolated compounds were evaluated for their cytotoxicities against five human cancer cell lines: HL 60, SMMC-7721, A-549, MCF-7 and SW-480 in vitro. Neolignans 1-12 showed significant cytotoxic effects against various human cancer cell lines with IC50 values ranging from 0.16 to 18.62 MUM. PMID- 29040843 TI - Characterization of EPS compositions and microbial community in an Anammox SBBR system treating landfill leachate. AB - The biofilm system is beneficial for Anammox process designed to treat landfill leachate. In this study, the composition of extracellular polymeric substances (EPS) and the microbial community in an Anammox biofilm system were analyzed to determine the functions driving the biofilm's ability to treat landfill leachate. The results demonstrated that increasing influent carbon oxygen demand (COD) could stimulate EPS production. EPS helped enrich Anammox bacteria and supplied them with nutrients and enzymes, facilitating effective nitrogen removal (approximately 95%). The variation in Anammox bacteria was similar to the variation in EPS composition. In the tested Anammox Sequencing Biofilm Batch Reactor (SBBR) system, Candidatus Kuenenia was dominant among known Anammox genus, because of its high substrate affinity and because it adapts better to landfill leachate. The relative abundance of Candidatus Kuenenia in the biofilm rose from 3.26% to 12.38%, illustrating the protection and enrichment offered by the biofilm in carrying out Anammox. PMID- 29040844 TI - Can hydrothermal pretreatment improve anaerobic digestion for biogas from lignocellulosic biomass? AB - Hydrothermally-pretreated rice straw (HPRS) from various pretreatment temperatures was anaerobically-digested in whole slurry. Results indicated promoting pretreatment temperature significantly deconstructed rice straw, and facilitated the conversion of insoluble fractions to soluble fractions. Although 306.6 mL/g TS biogas was maximally yielded in HPRS-90 and HPRS-180, respectively, via digestion in whole slurry, it was only 3% promotion compared to the unpretreated rice straw. HPRS-210 yielded 208.5 mL/g TS biogas, which was 30% reduction with longer lag period of 19.8 d, suggesting serious inhibitions happened. Through slightly increasing organic loading, more serious acidification and reduction on biogas yield, especially at higher pretreatment temperatures, indicated the soluble fractions controlled digestion performances. Pearson correlation analysis suggested negative relationship existed between methane yield and the soluble fractions including soluble carbohydrates, formic acid and furfural. Hydrothermal pretreatment, especially at higher temperature, did not improve anaerobic digestion, thereby, was not recommended, however, lower temperature can be considered potentially. PMID- 29040845 TI - In-situ regeneration of activated carbon with electric potential swing desorption (EPSD) for the H2S removal from biogas. AB - In-situ regeneration of a granular activated carbon was conducted for the first time using electric potential swing desorption (EPSD) with potentials up to 30 V. The EPSD system was compared against a standard non-potential system using a fixed-bed reactor with a bed of 10 g of activated carbon treating a gas mixture with 10,000 ppm H2S. Breakthrough times, adsorption desorption volume, capacities, effect of regeneration and desorption kinetics were investigated. The analysis showed that desorption of H2S using the new EPSD system was 3 times quicker compared with the no potential system. Hence, physical adsorption using EPSD over activated carbon is efficient, safe and environmental friendly and could be used for the in-situ regeneration of granular activated carbon without using a PSA and/or TSA system. Additionally, adsorption and desorption cycles can be obtained with a classical two column system, which could lead towards a more efficient and economic biogas to biomethane process. PMID- 29040846 TI - Salt-tolerance aerobic granular sludge: Formation and microbial community characteristics. AB - The salt-tolerance aerobic granular sludge (SAGS) dominated by moderately halophilic bacteria was successfully cultured in a 9% (w/v) salty, lab-scale sequence batch reactor (SBR) system. Influence of high salinity (0-9% w/v NaCl) on the formation, performance and microbial succession of the SAGS were explored. Crystal nucleus hypothesis, selection pressure hypothesis and compressed double electric layers hypothesis were used to discuss the formation mechanism of SAGS. Notably, salinity could be seen as a kind of selection pressure contributed to the formation of SAGS, while salinity also declined the performance of SAGS system. High throughput 16S rRNA gene analysis showed that the salinity had great influence on the species succession and community structure of SAGS. Moreover, Salinicola and Halomonas were dominant at 9% salt concentration, therefore moderate halophiles were identified as functional groups for the tolerance of hypersaline stress. PMID- 29040847 TI - Characterization of ionic liquid pretreated plant cell wall for improved enzymatic digestibility. AB - An insight into the properties of cell wall of mustard stalk (MS) pretreated by five ionic liquids (ILs) revealed ILs interaction with cellulose, hemicellulose and lignin components. Differential Scanning Calorimetry (DSC) showed increased pore size coupled with increased population of pores evoked by certain ILs in better facilitating enzymatic accessibility. Interestingly, all the five ILs predominantly increased the propensity of two pore sizes formation; 19 and 198 nm, but remarkable difference in the pore volumes of pretreated MS suggested the supremacy of [OAc]- based ILs, resulting in higher glucose yields. Cellulose I to II transition in pretreated MS was supported by the reduced total crystallinity index (TCI), lateral order index (LOI) values. Strong inverse correlation existed between the said parameters and residual acetyl content with enzymatic hydrolysis (R2 > 0.8). An inverse relationship between hydrogen bond basicity, LOI and TCI suggested it to be a good indicator of IL pretreatment efficiency. PMID- 29040848 TI - Responses of microbial community to pH stress in bioleaching of low grade copper sulfide. AB - The microbial diversity and dynamics in the leachates and on the ore surfaces of different depth of the column were analyzed during bioleaching of low grade copper sulfide at different pH, after inoculation with the same inoculum containing mesophiles and moderate thermophiles. The results indicate that low pH was beneficial to enhance copper extraction. The highest copper extraction (86%) was obtained when pH was controlled at 1.0-1.5. The microbial structures on the ore surfaces were independent of community structures in the leachate, even at the top portion of column. Microbial richness and evenness increased with decreasing pH during bioleaching. pH had significant effects on microbial community structure in the leachate and on the mineral surface of different depth of the column. Leptospirillum ferriphilum accounted for the highest proportions of the community at most times when pH was operated during bioleaching, especially at the end of run. PMID- 29040849 TI - Synergy of lignocelluloses pretreatment by sodium carbonate and bacterium to enhance enzymatic hydrolysis of rice straw. AB - We studied a new strategy for pretreatment of rice straw (RS) to enhance enzymatic hydrolysis under mild condition. This approach uses the synergy of sodium carbonate (Na2CO3) and the bacterial strain Cupriavidus basilensis B-8 (hereafter B-8). After synergistic Na2CO3 and B-8 pretreatment (SNBP), the reducing sugar yield varied from 335.3mg/g to 799.6mg/g under different conditions. This increased by 13-31% over Na2CO3 pretreatment (284.2-719.2mg/g) and 3.42-8.15times over the untreated RS (98mg/g). Moreover, the composition of RS was changed significantly through decreases in lignin and hemicellulose. We confirmed this change by compositional analysis and physicochemical characterization of the structure of RS before and after pretreatment. We also elaborated a mechanism for SNBP to better explain RS changes and bacterial effects on enzymatic hydrolysis. PMID- 29040850 TI - Biosynthesis of tert-butyl (3R,5S)-6-chloro-3,5-dihydroxyhexanoate by carbonyl reductase from Rhodosporidium toruloides in mono and biphasic media. AB - tert-Butyl (3R,5S)-6-chloro-3,5-dihydroxyhexanoate ((3R,5S)-CDHH) is the key intermediate for synthesis of atorvastatin and rosuvastatin. Carbonyl reductase exhibits excellent activity toward tert-butyl (S)-6-chloro-5-hydroxy-3 oxohexanoate ((S)-CHOH) to synthesize (3R,5S)-CDHH. In this study, a whole cell biosynthesis reaction system to produce (3R,5S)-CDHH was constructed in organic solvents. A solution of 10% (v/v) Tween-80 was introduced to the reaction system as a co-solvent, which greatly enhanced biotransformation process, giving 98.9% yield, >99% ee and 1.8-fold higher space time yield in 5 h bioconversion of 1 M (S)-CHOH, compared with 98.7% yield and >99% ee in 9 h bioconversion of a purely aqueous reaction system. Moreover, a water-octanol biphasic reaction system was built and 20% of octanol was added as reservoir of substrate resulting in 98% yield, >99% ee and 4.08 mmol L-1 h-1 g-1 (wet cell weight) space time yield. This study paved a way for the whole cell biosynthesis of (3R,5S)-CDHH in mono and biphasic media. PMID- 29040851 TI - Magnetic field action on outdoor and indoor cultures of Spirulina: Evaluation of growth, medium consumption and protein profile. AB - This study aimed at evaluating whether a magnetic field (MF) affects the growth of Spirulina sp. when applied to it at different exposure times in indoor and outdoor culture systems. The effects of MF on chlorophyll content, medium consumption and protein profile were also investigated. In raceway tanks, a 25 mT MF was applied for 24 h or for 1 h d-1. MF for 24 h to outdoor assays increased biomass concentration and chlorophyll-a content besides altering the protein profile. Outdoor Spirulina growth was higher (~3.65 g L-1) than the growth found in indoor assays (~1.80 g L-1), while nitrogen and phosphorus consumption was not enhanced by the application of MF. This is the first study that investigated the influence of MF on outdoor microalga assays, and the results showed that MF affected the metabolism of Spirulina cultured in raceways, especially when it was grown outdoors in uncontrolled environmental conditions. PMID- 29040852 TI - Blackwater treatment using vertical greening: Efficiency and microbial community structure. AB - This study assesses the use of vertical greening for blackwater treatment. The effects of hydraulic retention time (HRT) and drip frequency on treatment performance were systematically studied. Additionally, microbial communities in the vertical greening system were characterized. The results show that the removal efficiencies of NH4+-N and total phosphate (TP) increased with an increase in HRT, and the drip frequency had a significant effect on TP. High throughput sequencing revealed that the diversity of the microbial community did not change significantly along vertical and horizontal directions, but the dominant species shifted. Heterotrophic nitrifying and denitrifying bacteria decreased significantly while autotrophic nitrifying bacteria, especially ammonia oxidizing bacteria, proliferated in a vertical direction. Therefore, it is concluded that vertical greening systems can effectively treat blackwater and lower NH+-N levels. PMID- 29040853 TI - Chinese medicinal herbal residues as a bulking agent for food waste composting. AB - This study aimed to co-compost Chinese medicinal herbal residues (CMHRs) as the bulking agent with food waste (FW) to develop a high value antipathogenic compost. The FW, sawdust (SD) and CMHRs were mixed at three different mixing ratios, 5:5:1, 2:2:1 and 1:1:1 on dry weight basis. Lime at 2.25% was added to the composting mix to buffer the pH during the composting. A control without lime addition was also included. The mixtures were composted in 20-L in-vessel composters for 56 days. A maximum of 67.2% organic decomposition was achieved with 1:1:1 mixing ratio within 8 weeks. The seed germination index was 157.2% in 1:1:1 mixing ratio, while other ratios showed <130.0% and the treatment without lime showed 40.3%. Therefore use of CMHRs as the bulking agent to compost food waste at the dry weight ratio of 1:1:1 (FW: SD: CMHRs) was recommended for FW CMHRs composting. PMID- 29040854 TI - Simultaneously separation of xylo-oligosaccharide and lignosulfonate from wheat straw magnesium bisulfite pretreatment spent liquor using ion exchange resin. AB - For wheat straw, an ideal bio-refinery process is that all three major components of biomass could be efficiently utilized to make high value chemicals, MBSP could directly convert the hemicelluloses and lignin into xylo-oligosaccharides and lignosulfonate. However, these value-added compounds still present in spent liquor and thus should be isolated as an individual product. In present work, a simple and efficient ion exchange process was developed for separating xylo oligosaccharides and lignosulfonate simultaneously from spent liquor. D354 resin was selected for its high adsorption capacity of magnesium lignosulfonate and remarkable selectivity. 93.09% of XOS and 98.03% of lignosulfonate were recovered from the treated spent liquor in a fixed bed column with D354 resin. Overall, 1 L of MBSP spent liquor could coproduce 9.5 g XOS and 74 g lignosulfonate. These results offer an opportunity for complete and effective utilization of biomass by a novel integrated process coupling of MBSP and ion-exchange process. PMID- 29040855 TI - Technoeconomic analysis of biojet fuel production from camelina at commercial scale: Case of Canadian Prairies. AB - This study undertakes technoeconomic analysis of commercial production of hydro processed renewable jet (HRJ) fuel from camelina oil in the Canadian Prairies. An engineering economic model designed in SuperPro Designer(r) investigated capital investment, scale, and profitability of producing HRJ and co-products (biodiesel, naphtha, LPG, and propane) based on biorefinery plant sizes of 112.5-675 million L annum-1. Under base case scenario, the minimum selling price (MSP) of HRJ was $1.06 L-1 for a biorefinery plant with size of 225 million L. However, it could range from $0.40 to $1.71 L-1 given variations in plant capacity, feedstock cost, and co-product credits. MSP is highly sensitive to camelina feedstock cost and co product credits, with little sensitivity to capital cost, discount rate, plant capacity, and hydrogen cost. Marginal and average cost curves suggest the region could support an HRJ plant capacity of up to 675 million L annum-1 (capital investment of $167 million). PMID- 29040856 TI - A novel bio-electrochemical system with sand/activated carbon separator, Al anode and bio-anode integrated micro-electrolysis/electro-flocculation cost effectively treated high load wastewater with energy recovery. AB - A novel bio-electrochemical system (BES) was developed by integrating micro electrolysis/electro-flocculation from attaching a sacrificing Al anode to the bio-anode, it effectively treated high load wastewater with energy recovery (maximum power density of 365.1 mW/m3 and a maximum cell voltage of 0.97 V), and achieving high removals of COD (>99.4%), NH4+-N (>98.7%) and TP (>98.6%). The anode chamber contains microbes, activated carbon (AC)/graphite granules and Al anode. It was separated from the cathode chamber containing bifunctional catalytic and filtration membrane cathode (loaded with Fe/Mn/C/F/O catalyst) by a multi-medium chamber (MMC) filled with manganese sand and activated carbon granules, which replaced expensive PEM and reduced cost. An air contact oxidation bed for aeration was still adopted before liquid entering the cathode chamber. micro-electrolysis/electro-flocculation helps in achieving high removal efficiencies and contributes to membrane fouling migration. The increase of activated carbon in the separator MMC increased power generation and reduced system electric resistance. PMID- 29040857 TI - Synergistic effects of anaerobic co-digestion of whey, manure and fish ensilage. AB - Biogas production potential of the three feedstocks fish ensilage, manure and whey was evaluated using biochemical methane potential (BMP) tests. Since anaerobic digestion of single substrates may be inefficient due to imbalances in the carbon-nitrogen ratio, degree of biodegradability and/or due to lack of nutrients needed by the microbial community, co-digestion of these substrates was also assessed, revealing synergistic effects and a particularly good effect of combining manure with fish ensilage. In this latter case, methane yields were up to 84% higher than the weighted average of the methane yields obtained with the individual substrates. The type of substrate was the dominating cause of variation in methane production rates and yields. PMID- 29040858 TI - Pyrolysis of oil palm mesocarp fiber catalyzed with steel slag-derived zeolite for bio-oil production. AB - The pyrolysis of oil palm mesocarp fiber (OPMF) was catalyzed with a steel slag derived zeolite (FAU-SL) in a slow-heating fixed-bed reactor at 450 degrees C, 550 degrees C, and 600 degrees C. The catalytic pyrolysis of OPMF produced a maximum yield of 47 wt% bio-oil at 550 degrees C, and the crude pyrolysis vapor (CPV) of this process yielded crude pyrolysis oil with broad distribution of bulky oxygenated organic compounds. The bio-oil composition produced at 550 degrees C contained mainly light and stable acid-rich carbonyls at a relative abundance of 48.02% peak area and phenolic compounds at 12.03% peak area. The FAU SL high mesoporosity and strong surface acidity caused the conversion of the bulky CPV molecules into mostly light acid-rich carbonyls and aromatics through secondary reactions. The secondary reactions mechanisms facilitated by FAU-SL reduced the distribution of the organic compounds in the bio-oil to mostly acid rich carbonyls and aromatic in contrast to other common zeolite. PMID- 29040859 TI - The FKS family genes cause changes in cell wall morphology resulted in regulation of anti-autolytic ability in Saccharomyces cerevisiae. AB - The aim of this study was to discuss the functions of FKS family genes which encode beta-1, 3-glucan synthase regarding the viability and autolysis of yeast strain. Loss of FKS1 gene severely influences the viability and anti-autolytic ability of yeast. Mutation of FKS1 and FKS2 genes led to cell reconstruction, resulting in a sharp shrinkage of cell volume and decreased stress resistance, viability, and anti-autolytic ability. Deletion of FKS3 gene did not clearly influence the synthesis of beta-1, 3-glucan of yeast but increased the strain's stress resistance, viability, and anti-autolytic ability. It is suggested that FKS3 would be the potential target for improving the stress resistance of yeast. The results revealed the relationship among FKS family genes and demonstrated their functions on yeast cell wall construction and anti-autolytic ability. PMID- 29040860 TI - Organics removal, nitrogen removal and N2O emission in subsurface wastewater infiltration systems amended with/without biochar and sludge. AB - Organics removal, nitrogen removal, N2O emission and nitrogen removal functional gene abundances in four subsurface wastewater infiltration systems (SWISs), named SWIS A (no intermittent aeration without biochar and sludge), SWIS B (no intermittent aeration with biochar and sludge), SWIS C (intermittent aeration without biochar and sludge), SWIS D (intermittent aeration with biochar and sludge) were investigated. Intermittent aeration enhanced chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), total nitrogen (TN) removal and the abundances of nitrogen removal functional genes (amoA, nxrA, napA, narG, nirS, nirK, qnorB and nosZ) compared to non-aerated SWISs. High COD (95.4 +/- 0.2%), NH4+-N (96.2 +/- 0.6%), TN (86.4 +/- 0.5%) removal efficiencies and low N2O emission rate (18.4 mg/(m2 d)) were obtained simultaneously in intermittent aerated SWIS amended with biochar and sludge. The results suggested that intermittent aerated SWISs amended with biochar and sludge could be an effective and appropriate method for improving treatment performance and reducing N2O emission. PMID- 29040861 TI - Biomimetic aquaporin membranes for osmotic membrane bioreactors: Membrane performance and contaminant removal. AB - In this study, we investigated the performance of an osmotic membrane bioreactor (OMBR) enabled by a novel biomimetic aquaporin forward osmosis (FO) membrane. Membrane performance and removal of 30 trace organic contaminants (TrOCs) were examined. Results show that the aquaporin FO membrane had better transport properties in comparison with conventional cellulose triacetate and polyamide thin-film composite FO membranes. In particular, the aquaporin FO membrane exhibited much lower salt permeability and thus smaller reverse salt flux, resulting in a less severe salinity build-up in the bioreactor during OMBR operation. During OMBR operation, the aquaporin FO membrane well complemented biological treatment for stable and excellent contaminant removal. All 30 TrOCs selected here were removed by over 85% regardless of their diverse properties. Such high and stable contaminant removal over OMBR operation also indicates the stability and compatibility of the aquaporin FO membrane in combination with activated sludge treatment. PMID- 29040862 TI - Fast microwave-assisted ex-catalytic co-pyrolysis of bamboo and polypropylene for bio-oil production. AB - The ex-catalytic co-pyrolysis of bamboo and polypropylene (PP) with HZSM-5 was investigated with microwave assistance. The influences of catalytic temperature, feedstock/catalyst ratio, and bamboo/PP ratio on the product yields and chemical components of bio-oil from the co-pyrolysis were studied. When the catalytic temperature, feedstock/catalyst ratio, and bamboo/PP ratio were 250 degrees C, 1:2, and 2:1, respectively, the bio-oil yield reached its maximum value at 61.62 wt%. The oxygenate proportion compounds decreased with increasing catalyst content. The PP addition improved the proportions of aromatics and naphthenic hydrocarbons. The bio-oil was upgraded significantly from the jet fuel perspective. A synergistic effect also existed between bamboo and PP. PMID- 29040863 TI - High tolerance of and removal of cefazolin sodium in single-chamber microbial fuel cells operation. AB - Single-chamber microbial fuel cells (MFCs) have been shown to be a promising approach for cefazolin sodium (CFZS)-contaminated wastewater treatment, in terms of electricity production, high CFZS tolerance and effective CFZS removal. MFCs exposed to CFZS loadings up to 100 mg L-1, produced stable power of 18.2 +/- 1.1 W m-3 and a maximum power of 30.4 +/- 2.1 W m-3, similar to that of CFZS-free MFCs (stable power 19.4 +/- 0.8 W m-3 and maximum power 32.5 +/- 1.6 W m-3), notwithstanding a longer acclimitisation MFC activation. More anodophilic genera (i.e. Acinetobacter, Stenotrophomonas, Lysinibacillus) and antibiotic-resisting genera (i.e. Dysgonomonas) were enriched in CFZS acclimitised anodes. Both the thickness of biofilms and the duration of CFZS acclimitisation were essential for the development of high CFZS tolerance (e.g. 450 mg L-1). The inhibition of MFCs by CFZS was reversible. The present MFCs generated a CFZS removal rate of 1.2-6.8 mg L-1 h-1 without any apparent inhibition of electricity production. PMID- 29040864 TI - Enhanced enzymatic hydrolysis by adding long-chain fatty alcohols using film as a structure model. AB - Many positive effects of additives on enzymatic hydrolysis of lignocellulosic materials have been investigated, but limited information has been reported on the use of long-chain fatty alcohols (LFAs) for enzymatic hydrolysis by biospired models. In this study, effects of LFAs on enzymatic hydrolysis were evaluated using biomimetic film asa structure model. LFAs clearly improved the digestibility of cellulose film from 65.1% to 77.9%, which was higher than that the digestibility of lignin-cellulose film from 53.9% to 66.2%. Further study indicated that the promotion ascribed to the effect of LFAs, which might provide more active points of chemical reaction and keep the stability of cellulase. Moreover, the digestibility of lignin-cellulose film increased by 12.3%, which might because the denaturation and nonproductive adsorption of cellulase were well prevented by supplementation of LFAs. An efficient strategy was developed to improve the enzymatic hydrolysis efficiency in the study of lignocellulosic bioconversion. PMID- 29040865 TI - Do microbial communities in an anaerobic bioreactor change with continuous feeding sludge into a full-scale anaerobic digestion system? AB - Microbial communities of sludge samples from a full-scale anaerobic digestion (AD) fed with primary sludge (PS) and excess sludge (ES) were analyzed using qPCR and MiSeq. The results showed that the microbial composition of digested sludge remained relatively stable but was partially changed by microbial immigration from feeding sludge. The dominant archaea in the digested sludge were largely the same as those in the feeding sludge, but their abundances differed markedly. The dominant fungal genera in the digested sludge were different from those in PS but were similar to those in ES. Various differences in bacterial community differences between digested sludge and PS/ES were observed. Notably, this study is the first to suggest Verrucomicrobia is the predominant bacterial phylum in the digested sludge, and that numerous unreported microorganisms belonging to the order LD1-PB3 existed in this AD system and potentially played roles in the processes of hydrolysis, fermentation, and acetogenesis. PMID- 29040866 TI - Carbon-dependent alleviation of ammonia toxicity for algae cultivation and associated mechanisms exploration. AB - Ammonia toxicity in wastewater is one of the factors that limit the application of algae technology in wastewater treatment. This work explored the correlation between carbon sources and ammonia assimilation and applied a glucose-assisted nitrogen starvation method to alleviate ammonia toxicity. In this study, ammonia toxicity to Chlorella sp. was observed when NH3-N concentration reached 28.03mM in artificial wastewater. Addition of alpha-ketoglutarate in wastewater promoted ammonia assimilation, but low utilization efficiency and high cost of alpha ketoglutarate limits its application in wastewater treatment. Comparison of three common carbon sources, glucose, citric acid, and sodium bicarbonate, indicates that in terms of ammonia assimilation, glucose is the best carbon source. Experimental results suggest that organic carbon with good ability of generating energy and hydride donor may be critical to ammonia assimilation. Nitrogen starvation treatment assisted by glucose increased ammonia removal efficiencies and algal viabilities. PMID- 29040867 TI - Long-term follow-up of anterior thalamic deep brain stimulation in epilepsy: A 11 year, single center experience. AB - PURPOSE: Anterior thalamic deep brain stimulation (ATN DBS) is an emerging, effective treatment for patients with drug-resistant epilepsy, but long-term results on its efficacy and safety are lacking. To evaluate the long-term efficacy and safety of ATN DBS treatment, as well as predictors of its success, in patients with drug-refractory epilepsy (DRE). METHOD: We retrospectively studied clinical outcomes in 29 consecutive refractory epilepsy patients treated by a single DBS team (two neurosurgeons, four neurologists) over an 11-year period, for whom follow-up was performed for up to 137 months (mean, 74.9 months). RESULTS: The average participant was 30.7 (+/-10.4) years old and had epilepsy for 19.3 (+/-9.0) years. The mean preoperative frequency of disabling partial or generalized tonic-clonic seizures was 27.5 (+/-8.6, SE) seizures a month. The median percent seizure reduction was 71.3% at 1year, 73.9% at 2 years, and ranged from 61.8% to 80.0% over post-implant years 3 through 11 in the long term study (overall 70% median reduction). In the 11-year study period, 13.8% (4/29) of subjects were seizure-free for at least 12 months during this time. There was only one symptomatic intracranial hemorrhage that happened during follow-up (3.4%). Infection requiring removal and later re-implantation of hardware occurred in only 1 of 30 patients (3.3%), who was subsequently excluded from our follow-up assessment. Hardware malfunction including lead disconnection occurred in 2 of 29 cases (6.9%). Revision of lead position to redeem poor clinical response was performed in 3 of 58 implanted leads (5.2%). CONCLUSIONS: ATN DBS can be an effective therapy in a variety of patients with DRE. Importantly, we provide evidence that significant therapeutic efficacy can be sustained for up to 11 years. Neurological complications were rather rare, but long-term hardware-related complications should be followed arrectis auribus. PMID- 29040869 TI - Accessing the long-time limit in diffusion NMR: The case of singlet assisted diffusive diffraction q-space. AB - The latest developments in the field of long-lived spin states are merged with pulsed-field gradient techniques to extend the diffusion time beyond what is currently achievable in standard q-space diffusive-diffraction studies. The method uses nearly-equivalent spin-1/2 pairs that let diffusion times of the order of many minutes to be measured allowing access to the long-time limit in cavities of macroscopic size (millimeters). A pulse sequence suitable to exploit this regime has been developed and validated with the use of numerical simulations and experiments. PMID- 29040868 TI - Identification of a novel proinsulin-associated SNP and demonstration that proinsulin is unlikely to be a causal factor in subclinical vascular remodelling using Mendelian randomisation. AB - BACKGROUND AND AIMS: Increased proinsulin relative to insulin levels have been associated with subclinical atherosclerosis (measured by carotid intima-media thickness (cIMT)) and are predictive of future cardiovascular disease (CVD), independently of established risk factors. The mechanisms linking proinsulin to atherosclerosis and CVD are unclear. A genome-wide meta-analysis has identified nine loci associated with circulating proinsulin levels. Using proinsulin associated SNPs, we set out to use a Mendelian randomisation approach to test the hypothesis that proinsulin plays a causal role in subclinical vascular remodelling. METHODS: We studied the high CVD-risk IMPROVE cohort (n = 3345), which has detailed biochemical phenotyping and repeated, state-of-the-art, high resolution carotid ultrasound examinations. Genotyping was performed using Illumina Cardio-Metabo and Immuno arrays, which include reported proinsulin associated loci. Participants with type 2 diabetes (n = 904) were omitted from the analysis. Linear regression was used to identify proinsulin-associated genetic variants. RESULTS: We identified a proinsulin locus on chromosome 15 (rs8029765) and replicated it in data from 20,003 additional individuals. An 11 SNP score, including the previously identified and the chromosome 15 proinsulin associated loci, was significantly and negatively associated with baseline IMTmean and IMTmax (the primary cIMT phenotypes) but not with progression measures. However, MR-Eggers refuted any significant effect of the proinsulin associated 11-SNP score, and a non-pleiotropic SNP score of three variants (including rs8029765) demonstrated no effect on baseline or progression cIMT measures. CONCLUSIONS: We identified a novel proinsulin-associated locus and demonstrated that whilst proinsulin levels are associated with cIMT measures, proinsulin per se is unlikely to have a causative effect on cIMT. PMID- 29040870 TI - Parkin absence accelerates microtubule aging in dopaminergic neurons. AB - Loss-of-function caused by mutations in the parkin gene (PARK2) lead to early onset familial Parkinson's disease. Recently, mechanistic studies proved the ability of parkin in regulating mitochondria homeostasis and microtubule (MT) stability. Looking at these systems during aging of PARK2 knockout mice, we found that loss of parkin induced an accelerated (over)acetylation of MT system both in dopaminergic neuron cell bodies and fibers, localized in the substantia nigra and corpus striatum, respectively. Interestingly, in PARK2 knockout mice, changes of MT stability preceded the alteration of mitochondria transport. Moreover, in-cell experiments confirmed that loss of parkin affects mitochondria mobility and showed that this defect depends on MT system as it is rescued by paclitaxel, a well-known MT-targeted agent. Furthermore, both in PC12 neuronal cells and in patients' induced pluripotent stem cell-derived midbrain neurons, we observed that parkin deficiencies cause the fragmentation of stable MTs. Therefore, we suggest that parkin acts as a regulator of MT system during neuronal aging, and we endorse the hypothesis that MT dysfunction may be crucial in the pathogenesis of Parkinson's disease. PMID- 29040871 TI - Gray matter networks and clinical progression in subjects with predementia Alzheimer's disease. AB - We studied whether gray matter network parameters are associated with rate of clinical progression in nondemented subjects who have abnormal amyloid markers in the cerebrospinal fluid (CSF), that is, predementia Alzheimer's disease. Nondemented subjects (62 with subjective cognitive decline; 160 with mild cognitive impairment (MCI); age = 68 +/- 8 years; Mini-Mental State Examination (MMSE) = 28 +/- 2.4) were selected from the Amsterdam Dementia Cohort when they had abnormal amyloid in CSF (<640 pg/mL). Networks were extracted from gray matter structural magnetic resonance imaging (MRI), and 9 parameters were calculated. Cox proportional hazards models were used to test associations between each connectivity predictor and rate of progression to MCI or dementia. After a median time of 2.2 years, 122 (55%) subjects showed clinical progression. Lower network parameter values were associated with increased risk for progression, with the strongest hazard ratio of 0.29 for clustering (95% confidence interval = 0.12-0.70; p < 0.01). Results remained after correcting for tau, hippocampal volume, and MMSE scores. Our results suggest that at predementia stages, gray matter network parameters may have use to identify subjects who will show fast clinical progression. PMID- 29040872 TI - Highly elevated plasma level of von Willebrand factor accelerates the formation of platelet thrombus under high shear stress in plasma with deficient ADAMTS13 activity. AB - Upshaw-Schulman syndrome (USS) is a thrombo-hemorrhagic disease caused by congenital deficiency of ADAMTS13 due to ADAMTS13 gene mutations. USS is characterized by repeated episodes of thrombocytopenia and microangiopathic hemolytic anemia that respond dramatically to infusions of fresh frozen plasma. There are two phenotypic expressions of USS: one is the early-onset type and the other, the late-onset type, is asymptomatic during childhood with the first bout of thrombotic thrombocytopenic purpura (TTP) developing after adolescence or during adulthood. We found that gravida with the latter phenotype developed thrombocytopenia and hemolytic anemia during the second or third trimesters, often followed by thrombotic microangiopathies (TMAs). These phenomena suggest that elevated plasma von Willebrand Factor (VWF) might be crucial because plasma levels of VWF antigen usually increase by 200-500% during this period of gestation. Here, we performed platelet function assays using a mixture of anti coagulated blood from normal volunteers, human VWF, anti-ADAMTS13 monoclonal antibody A10, and purified plasma-derived ADAMTS13 to investigate the effect of plasma VWF levels on platelet thrombus formation in the context of deficient ADAMTS13. In vitro studies showed that mural thrombus formation and platelet aggregation under high shear stress were markedly augmented by increasing the amounts of exogenously added VWF when ADAMTS13 activity was deficient, as may be the case in the in vivo circulation of gravida with USS. These results suggest that highly elevated plasma VWF might accelerate platelet thrombus formation not only in the circulation but also on the surface of vascular endothelial cells in the setting of ADAMTS13 deficiency in USS. PMID- 29040873 TI - Hazard perception skills of young drivers with Attention Deficit Hyperactivity Disorder (ADHD) can be improved with computer based driver training: An exploratory randomised controlled trial. AB - BACKGROUND: Young drivers with Attention Deficit Hyperactivity Disorder (ADHD) are at higher risk of road traffic injuries than their peers. Increased risk correlates with poor hazard perception skill. Few studies have investigated hazard perception training using computer technology with this group of drivers. OBJECTIVES: *Determine the presence and magnitude of the between-group and within subject change in hazard perception skills in young drivers with ADHD who receive Drive Smart training. *Determine whether training-facilitated change in hazard perception is maintained over time. METHODS: This was a feasibility study, randomised control trial conducted in Australia. The design included a delayed treatment for the control group. Twenty-five drivers with a diagnosis of ADHD were randomised to the Immediate Intervention or Delayed Intervention group.The Immediate Intervention group received a training session using a computer application entitled Drive Smart. The Delayed Intervention group watched a documentary video initially (control condition), followed by the Drive Smart computer training session. The participant's hazard perception skill was measured using the Hazard Perception Test (HPT). FINDINGS: After adjusting for baseline scores, there was a significant betweengroup difference in post-intervention HPT change scores in favour of the Immediate Intervention group. The magnitude of the effect was large. There was no significant within-group delayed intervention effect. A significant maintenance effect was found at 6-week follow-up for the Immediate Intervention group. CONCLUSIONS: The hazard perception skills of participants improved following training with large effect size and some maintenance of gain. A multimodal approach to training is indicated to facilitate maintenance. A full-scale trial is feasible. PMID- 29040874 TI - Surface functionalized exosomes as targeted drug delivery vehicles for cerebral ischemia therapy. AB - The safe and effective delivery of drugs is a major obstacle in the treatment of ischemic stroke. Exosomes hold great promise as an endogenous drug delivery nanosystem for the treatment of cerebral ischemia given their unique properties, including low immunogenicity, innate stability, high delivery efficiency, and ability to cross the blood-brain barrier (BBB). However, exosome insufficient targeting capability limits their clinical applications. In this study, the c(RGDyK) peptide has been conjugated to the exosome surface by an easy, rapid, and bio-orthogonal chemistry. In the transient middle cerebral artery occlusion (MCAO) mice model, The engineered c(RGDyK)-conjugated exosomes (cRGD-Exo) target the lesion region of the ischemic brain after intravenous administration. Furthermore, curcumin has been loaded onto the cRGD-Exo, and administration of these exosomes has resulted in a strong suppression of the inflammatory response and cellular apoptosis in the lesion region. The results suggest a targeting delivery vehicle for ischemic brain based on exosomes and provide a strategy for the rapid and large-scale production of functionalized exosomes. PMID- 29040875 TI - Biomechanical regulation of drug sensitivity in an engineered model of human tumor. AB - Predictive testing of anticancer drugs remains a challenge. Bioengineered systems, designed to mimic key aspects of the human tumor microenvironment, are now improving our understanding of cancer biology and facilitating clinical translation. We show that mechanical signals have major effects on cancer drug sensitivity, using a bioengineered model of human bone sarcoma. Ewing sarcoma (ES) cells were studied within a three-dimensional (3D) matrix in a bioreactor providing mechanical loadings. Mimicking bone-like mechanical signals within the 3D model, we rescued the ERK1/2-RUNX2 signaling pathways leading to drug resistance. By culturing patient-derived tumor cells in the model, we confirmed the effects of mechanical signals on cancer cell survival and drug sensitivity. Analyzing human microarray datasets, we showed that RUNX2 expression is linked to poor survival in ES patients. Mechanical loadings that activated signal transduction pathways promoted drug resistance, stressing the importance of introducing mechanobiological cues into preclinical tumor models for drug screening. PMID- 29040876 TI - Species-specific control of hepatocyte growth factor expression and production in adipocytes in a differentiation-dependent manner. AB - Hepatocyte growth factor (HGF) is a mesenchymal cell-derived factor that regulates cell growth, cell motility, and morphogenesis. Since there are conflicting reports on HGF-producing cells, we herein examined HGF activity in conditioned medium (CM) of bovine and mouse preadipocytes before and after adipogenic differentiation. CM of bovine adipocytes and mouse preadipocytes induced the morphogenesis of mammary epithelial cells that was inhibited by an NK4 HGF antagonist, whereas CM of bovine preadipocytes and mouse adipocytes did not. HGF mRNA expression was increased by a treatment with dexamethasone and isobutylmethylxanthine in bovine as well as human cells, whereas it was decreased in rodent cells. It was unfortunate that HGF gene promoter activity failed to reflect HGF mRNA expression in these cells. After actinomycin D treatment, expression of HGF mRNA remained stable in pre- and differentiated bovine adipocytes and mouse preadipocytes, whereas rapidly decreased in mouse differentiated adipocytes. These results indicate that expression and production of HGF are regulated in a species-specific adipogenic differentiation-dependent manner and suggest that the decrease in HGF mRNA in mouse differentiated adipocytes is, at least in part, mediated by differentiation-dependent loss of its stability. PMID- 29040877 TI - Corpus luteum dynamics after ovulation induction with or without previous exposure to progesterone in prepubertal Nellore heifers. AB - The objectives of this study were 1) to monitor corpus luteum (CL) dynamics after two different protocols of ovulation induction in prepubertal Nellore heifers, and 2) to determine differences in luteal function. Fifty-seven heifers (weight 289.61 +/- 32.28 kg, BCS 5.66 +/- 0.65, age 17.47 +/- 0.81 months) were divided into two groups: GP4+GnRH received a progesterone (P4) device of 3rd use for 10 days, followed by the administration of 0.02 mg buserelin acetate (GnRH) 48 h after removal of the device, and GGnRH received only GnRH. The CLs formed were monitored by ultrasonography every 2 days until their functional regression (decrease in the color Doppler signal and serum P4 concentration < 1 ng/mL), determining their diameter and area, numerical pixel value (NPV), pixel heterogeneity, and vascularization percentage. The peak systolic velocity, end diastolic velocity, resistivity index and pulsatility index (PI) of the ovarian artery and serum P4 concentration were also measured. A lifespan of the CL of more than 16 days was classified as normal-function and of less than 16 days as premature regression. The variables were compared between treatments, CL categories (normal-functional, prematurely regressed or non-functional), days of evaluation, and their interactions using the MIXED procedure of the SAS program (p <= 0.05). Three animals of each group (6/57 = 11%) did not respond to treatment, corresponding to an ovulation rate of 89%. There was a higher percentage of normal-function CLs in GP4+GnRH (81%) and a higher percentage of non-functional CLs in GGnRH (52%; P4 concentration < 1 ng/mL in all assessments). Normal-function CLs exhibited a greater area, vascularization percentage and P4 concentration than prematurely regressed and non-functional CLs. Lower diameter, area, NPV and P4 concentration were observed for non-functional CLs, but there was no difference in vascularization percentage compared to prematurely regressed CLs. Progesterone concentration was efficient in diagnosing CL function and was positively correlated with CL area (r = 0.62; p < 0.001) and vascularization percentage (r = 0.38; p < 0.001). Diameter and PI were important for the early diagnosis of non-functional and prematurely regressed CLs, respectively. In conclusion, luteal function differed for the first CL that develops after ovulation induction in prepubertal heifers. Ultrasonographic parameters (diameter, area, NPV, vascularization percentage, and PI) can be used to predict CL function. PMID- 29040878 TI - C-Phycocyanin supplementation during in vitro maturation enhances pre implantation developmental competence of parthenogenetic and cloned embryos in pigs. AB - C-Phycocyanin (C-PC), a protein from green microalgae, has been suggested to possess various biological activities, including antioxidant and free radical scavenging properties. The aim of the current study was to explore the effects of C-PC on the maturation of porcine oocytes and subsequent developmental competence after parthenogenetic activation and somatic cell nuclear transfer (SCNT) as well as the underlying mechanisms. There was no significant improvement in nuclear maturation rates between the control and C-PC supplementation groups (1, 3, 5, 10 MUg/mL). However, supplementation of 5 MUg/mL C-PC in the maturation medium significantly increased blastocyst formation and hatching rates after parthenogenetic activation (59.6 +/- 3.6% and 33.0 +/- 2.6% vs. 49.8 +/- 3.5% and 27.4 +/- 2.4%, respectively). In addition, the presence of C-PC during the maturation period significantly improved blastocyst formation rates and total cell numbers after SCNT (24.8 +/- 1.9% and 42.2 +/- 3.3 vs. 21.6 +/- 2.2% and 39.5 +/- 3.4, respectively) compared to the control group. Furthermore, cellular proliferation and the expression of pluripotency-related genes (SOX2 and NANOG) were increased in cloned blastocysts derived from the C-PC supplemented group. Importantly, C-PC supplementation during maturation not only improved cumulus expansion and increased the expression of cumulus expansion-related genes (HAS2, PTX3, and PTGS2), but also enhanced antioxidant capacity, improved mitochondria function, and decreased cathepsin B activity in porcine oocytes. These results demonstrate that C-PC may be useful for improving porcine oocyte quality and subsequent developmental competence in embryos. PMID- 29040879 TI - Influence of sexual behavior of Dorper rams treated with glutamate and/or testosterone on reproductive performance of anovulatory ewes. AB - The aim of this study was to determine if exogenous administration of glutamate and (or) testosterone to male rams during the season of reproductive arrest is able to re-activate male sexual behavior and, later on, to promote through the male effect, both sexual and reproductive competence of anovulatory nulliparous ewes. Therefore, an experiment was performed under long-day photoperiods (spring; photo-reproductive arrest, 26 degrees N). Dorper rams were randomly divided into four homogeneous experimental groups (n = 5 males each) regarding live weight (LW), body condition score (BCS), scrotal circumference (SC) and odor intensity (OI). Then, groups were treated with: i) GG (7 mg kg-1 LW of glutamate, every 4d * 30d, im.), ii) GGT (7 mg kg-1 LW of glutamate every 4d * 30d im + 25 mg of testosterone propionate, every 3d * 15d, im.), iii) GT (25 mg of testosterone propionate every 3d * 15d, im, and iv) GC (1 mL of saline, every 4d * 30d, im.). Thereafter, Dorper rams, (n = 4 per group) were selected and exposed to Dorper anovulatory-nulliparous ewes divided in four groups (n = 14 ewes each), and all the appetitive (ASB) and consummatory (CSB) sexual behaviors and indicators of sexual rest (ISR) were registered during the first 48 h of this male-to-females contact. Thereafter, males continued the male-to-female contact for another 8 d, in order to quantify the ewe's sexual and reproductive response through the male effect. During the sexual behavior tests, the GGT rams showed the highest ASB + CSB frequencies (P < 0.05) followed by the GG-rams with the lowest frequencies showed by the GC and GT groups. While the highest ISR behaviors were shown by the GG and GGT groups (P < 0.05) followed by the GC and GT-rams, no differences occurred regarding LW, BCS, and SC along the experimental breeding, with the largest (P < 0.05) OI shown by the GGT-rams and the lowest value observed in the control rams. Regarding the reproductive response of the nulliparous-anovulatory ewes exposed to treated rams, the glutamate + testosterone treated males induced not only an increased (P < 0.05) ovulatory activity and faster (P < 0.05) estrus response but an augmented (P < 0.05) pregnancy rate of the previously anovulatory ewes. To conclude, whereas the GG and GGT treatments generated encouraging sexual and reproductive outcomes, our results are also thought-provoking from a comparative sexual behavior perspective while may embrace potential applications to other animal industries. PMID- 29040880 TI - Prolonged parturition and impaired placenta expulsion increase the risk of postpartum metritis and delay uterine involution in sows. AB - It was hypothesized that prolonged parturition and impaired placenta expulsion increase the risk of postpartum metritis and delay uterine involution. At parturition, for 99 Yorkshire x Large White sows (parity 2-5), we determined the number of liveborn (NLP; 14.8 +/- 3.4) and stillborn piglets (NSP; 1.1 +/- 1.1), farrowing duration (FAR, time between first and last piglet; 333 +/- 249 min), placenta expulsion duration (PLA, time between first and last placental part; 292 +/- 241 min) and number of expelled placental parts (PART; 3.0 +/- 1.0). FAR was categorized as 'normal' (<300 min; n = 44/99) or 'prolonged' (>300 min; n = 55/99). The relative PLA (rPLA; (PLA * 100)/FAR; 76 +/- 101%) and the relative PART (rPART; (PART * 100)/(NLP + NSP); 22 +/- 8%) were calculated and placenta expulsion was categorized as 'normal' (rPLA and rPART > 10%; n = 93/99) or 'impaired' (relPLA and relPART < 10%; n = 6/99). We also recorded whether manual palpation occurred (Yes/No) and/or oxytocin was used (Yes/No). After parturition, an ultrasound examination of the uterus was performed once for each sow between the 2nd and 7th day postpartum and the uterine size (mean sectional area of three to five uterine cross-sections) and intrauterine fluid accumulation (Yes/No) were recorded. Uterine size was categorized as 'normal' (n = 55/99) or 'enlarged' (n = 44/99) and used as an indicator of delayed uterine involution. Intrauterine fluid was used as an indicator of metritis. Prolonged FAR (35/54, 2.0 +/- 0.5, 13.1, 7.6; n/N, beta +/- SE, Wald chi2, Odds; P = 0.001), manual palpation (12/17, 1.5 +/- 0.7, 4.4, 4.3; P = 0.036), oxytocin administration (18/31, - 1.5 +/- 0.7, 4.7, 0.2, P = 0.040) and NSP >= 2 (15/21, 1.4 +/- 0.7, 3.8, 3.9; P = 0.052) were associated with increased uterine size (n = 44/99) and NSP >= 2 (7/21, 2.6 +/- 0.9, 8.7, 13.7; P = 0.003), manual palpation (10/17, 1.8 +/- 0.8, 5.0, 6.0; P = 0.025), prolonged FAR (13/15, 1.7 +/- 0.8, 4.3, 5.7; P = 0.039) and impaired PLA (4/6, 3.3 +/- 1.7, 4.0, 26.9; P = 0.044) with intrauterine fluid accumulation (n = 15/99). The results confirm the hypothesis, indicating that prolonged parturition and impaired placenta expulsion increased the risk for postpartum metritis. Stillborn piglets and manual palpation were also identified as risk factors. Postpartum metritis delays uterine involution whereas the use of exogenous oxytocin supports it. PMID- 29040881 TI - New high-throughput measurement systems for radioactive wastes segregation and free release. AB - This paper addresses the measurement facilities for pre-selection of waste materials prior to measurement for repository acceptance or possible free release (segregation measurement system); and free release (free release measurement system), based on a single standardized concept characterized by unique, patented lead-free shielding. The key objective is to improve the throughput, accuracy, reliability, modularity and mobility of segregation and free-release measurement. This will result in a more reliable decision-making with regard to the safe release and disposal of radioactive wastes into the environment and, resulting in positive economic outcomes. The research was carried out within "Metrology for Decommissioning Nuclear Facilities" (MetroDecom) project. PMID- 29040882 TI - Separation of weighable amounts of 10Be from proton irradiated graphite. AB - Large amounts of 10Be are produced at the PSI muon production facility by high energy proton spallation in polycrystalline graphite. For the extraction of 10Be out of large amounts of carbon, pyrolysis followed by chemical purification has been performed. Approx. 270g of graphite from Target E92, which had received a total proton charge of 29 Ah between 2002 and 2005, have been burned at 1000 degrees C in a stream of oxygen. The volatile radioactive oxidation product 3H2O was trapped in 3 water bubblers connected in series. The remainder, a white hygroscopic solid material mainly consisting of 7Li2O, 9/10BeO and 10/11B2O3, was dissolved in HF and subsequently purified by ion exchange chromatography. Radioactive impurities such as 22Na, 44Ti, 54Mn, 60Co, 101Rh, 133Ba and 172Hf have been separated from the final product. The purified material represents a mixture of approx. 6.5mg 9Be and 3.5mg (3.3MBq) 10Be. It is ready to be used for scientific investigations requiring large amounts of this precious isotope. PMID- 29040883 TI - Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) for emergency cardiac support. AB - PURPOSE: Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) may provide benefit to patients in refractory cardiac arrest and cardiogenic shock. We aim to summarize our center's 6-year experience with resuscitative VA-ECMO. MATERIALS AND METHODS: A retrospective medical record review (April 2009 to 2015) was performed on consecutive non-cardiotomy patients who were managed with VA-ECMO due to refractory in- or out-of-hospital cardiac (IHCA/OHCA) arrest (E-CPR) or refractory cardiogenic shock (E-CS) with or without preceding cardiac arrest. Our primary outcome was survival to hospital discharge and good neurological status (Cerebral Performance Category 1-2). RESULTS: There were a total of 22 patients who met inclusion criteria of whom 9 received E-CPR (8 IHCA, 1 OHCA) and 13 received E-CS. The median age for E-CPR patients was 52 [IQR 45, 58] years, and 54 [IQR 38, 64] years for E-CS patients. Cardiac arrest duration was 70.33 (SD 39.56) min for the E-CPR patients, and 24.67 (SD 26.73) min for the 9 patients treated with E-CS who had previously arrested. Initial cardiac arrest rhythms were pulseless electrical activity (39%), ventricular fibrillation (33%), or ventricular tachycardia (28%). A total of 18/22 patients were successfully weaned from VA-ECMO (78%); 16 patients survived to hospital discharge (73%) with 15 in good neurological condition. CONCLUSION: The initiation of VA-ECMO at our center for treatment of refractory cardiac arrest and cardiogenic shock yielded a high proportion of survivors and favorable neurological outcomes. PMID- 29040884 TI - Heart rate variability feature selection in the presence of sleep apnea: An expert system for the characterization and detection of the disorder. AB - We introduce a sleep apnea characterization and classification approach based on a Heart Rate Variability (HRV) feature selection process, thus focusing on the characterization of the underlying process from a cardiac rate point of view. Therefore, we introduce linear and nonlinear variables, namely Cepstrum Coefficients (CC), Filterbanks (Fbank) and Detrended Fluctuation Analysis (DFA). Logistic Regression, Linear Discriminant Analysis and Quadratic Discriminant Analysis were used for classification purposes. The experiments were carried out using two databases. We achieved a per-segment accuracy of 84.76% (sensitivity = 81.45%, specificity = 86.82%, AUC = 0.92) in the Apnea-ECG Physionet database, whereas in the HuGCDN2014 database, provided by the Dr. Negrin University Hospital (Las Palmas de Gran Canaria, Spain), the best results were: accuracy = 81.96%, sensitivity = 70.95%, specificity = 85.47%, AUC = 0.87. The former results were comparable or better than those obtained by other methods for the same database in the recent literature. We have concluded that the selected features that best characterize the underlying process are common to both databases. This supports the fact that the conclusions reached are potentially generalizable. The best results were obtained when the three kinds of features were jointly used. Another notable fact is the small number of features needed to describe the phenomenon. Results suggest that the two first Fbanks, the first CC and the first DFA coefficient are the variables that best describe the RR pattern in OSA and, therefore, are especially relevant to extract discriminative information for apnea screening purposes. PMID- 29040885 TI - Bimodal decompression sickness onset times are not related to dive type or event severity. AB - Human decompression sickness (DCS) is a condition associated with depressurization during underwater diving. Human research dive trial data containing dive outcome (DCS, no-DCS) and symptom information are used to calibrate probabilistic DCS models. DCS symptom onset time information is visualized using occurrence density functions (ODF) which plot the DCS onset rate per unit time. For the BIG292 human dive trial data set, a primary U.S. Navy model calibration set, the ODFs are bimodal, however probabilistic models do not produce bimodal ODFs. We investigate the source of bimodality by partitioning the BIG292 data based on dive type, DCS event severity, DCS symptom type, institution, and chronology of dive trial. All but one variant of data partitioning resulted in a bimodal or ambiguously shaped ODF, indicating that ODF bimodality is not related to the dive type or the DCS event severity. Rather, we find that the dive trial medical surveillance protocol used to determine DCS symptom onset time may have biased the reported event window. Thus, attempts to develop probabilistic DCS models that reproduce BIG292 bimodality are unlikely to result in an improvement in model performance for data outside of the calibration set. PMID- 29040887 TI - Physical status and frailty index in nursing home residents: Results from the INCUR study. AB - AIM: The Short Physical Performance Battery (SPPB) is a widely used instrument for measuring physical performance, consisting of 3 sub-tests: a hierarchical test of balance, a gait speed test, and a chair stand test. Although equally considered in the computation of the SPPB score, each of the components may present a specific and different weight in clinical practice. The aim of this study was to estimate the relationship between SPPB and its component of an age related deficit accumulation index (the so-called Frailty Index [FI] proposed by Rockwood). METHOD: Data are from a longitudinal cohort study (ie, the Incidence of pNeumonia and related ConseqUences in nursing home Residents [INCUR]) of 730 older persons (74.29% women) living in 13 French nursing homes. The FI was computed as the ratio between 30 actual and potential deficits the participant might have presented at the baseline visit (range between 0 [no deficit] and 1 [30 deficits]). Physical status was assessed using the SPPB score at baseline. Descriptive statistics and linear regression analyses were used to determine the relationship between the SPPB and FI and estimate which components of the SPPB were most strongly associated with the FI. RESULTS: Mean age of participants was 86.5 (SD 7.5) years, with a mean FI of 0.37 (SD 0.11) and SPPB of 2.5 (range between 0 and 12). The SPPB and its components were all significantly associated with the FI, but the magnitude of the associations varied. Linear regression analyses adjusted for age, sex, showed that the balance test [beta=-0.045 (95%CI 0.042; -0.028), p<0.0001] and chair stand test [beta=-0.040 (95%CI -0.054; 0.027), p<0.0001] was more strongly associated with the FI than the gait speed [beta=-0.015 (95%CI -0.021; -0.008), p<0.0001]. CONCLUSION: Of the 3 components of the SPPB, both balance and chair tests seem particularly relevant indicator of frailty among very old and complex elders living in nursing homes. PMID- 29040886 TI - Role of N6-methyladenosine modification in cancer. AB - As the most abundant internal modification in eukaryotic messenger RNAs identified, N6-methyladenosine (m6A) has been shown recently to play essential roles in various normal bioprocesses. Evidence is emerging that m6A modification and its regulatory proteins also play critical roles in various cancers including leukemia, brain tumor, breast cancer and lung cancer, etc. For instance, FTO, the first m6A demethylase identified, has been reported recently to play an oncogenic role in leukemia and glioblastoma. ALKBH5 (another m6A demethylase) has been reported to exert a tumor-promoting function in glioblastoma and breast cancer. METTL3 (a major m6A methyltransferase) likely plays distinct roles between glioblastoma and lung cancer. Here we discuss the recent progress and future prospects in study of m6A machinery in cancer. PMID- 29040888 TI - Physical capability predicts mortality in late mid-life as well as in old age: Findings from a large British cohort study. AB - INTRODUCTION: Low physical capability predicts mortality, perhaps by association with co-morbidity. However, few studies include participants <70years old with lower co-morbidity burdens compared to older adults. We examined relationships between usual walking speed (UWS), timed chair stands speed, grip strength, standing balance and all-cause mortality in 8477 participants aged 48-92years enrolled in the European Prospective Investigation of Cancer-Norfolk study. METHODS: Participants (55.1% female) were followed up for 6.0 years (inter quartile range 4.6, 7.5). Associations were examined using Cox proportional hazards regression by age-group (<70years versus >=70years) and then in the whole cohort adjusted for age, sex, anthropometry, history of diabetes/stroke/myocardial infarction/cancer, smoking, alcohol intake, socioeconomic status, television viewing time and physical activity. RESULTS: Age and sex adjusted associations were similar in younger and older participants (Pinteraction all >0.05) and those with lower physical capability had higher mortality risk. For example, in those <70years old hazard ratios (95% confidence interval) for mortality in the third, second and lowest sex-specific quartiles of UWS compared to the highest were 1.21 (0.75, 1.96), 2.11 (1.35, 3.28) and 2.91 (1.84, 4.62) and in participants >=70years old were 1.19 (0.73, 1.95), 2.09 (1.35, 3.24) and 2.64 (1.73, 4.02) respectively. In the whole cohort, strong associations between all physical capability tests and mortality persisted after multivariable adjustment and after excluding participants with co-morbidity. CONCLUSIONS: Physical capability was independently predictive of future mortality risk with similar associations in late mid-life, when co-morbidity burden is lower, as at older age. PMID- 29040889 TI - Factors associated with happiness in the elderly persons living in the community. AB - OBJECTIVE: The aim of the present study was to evaluate factors associated with happiness in a sample of Brazilian older adults. METHODS: A study was conducted with 263 elderly people in the area of coverage of a family health unit located in the state of Sao Paulo, Brazil. The Subjective Happiness Scale was used to measure happiness, the final score of which determined one of three outcomes: not happy, intermediate, and happy. Disability, sociodemographic characteristics, and psychological, cognitive, and physical factors were considered for the multinomial logistic regression analysis. RESULTS: Statistically significant differences were found among the three groups regarding satisfaction with life, disability, social phobia, anxiety, depression, and frailty (p<=0.05). In the multinomial regression analysis, being "not happy" was significantly associated with satisfaction with life (RRR: 0.53), depression (RRR: 1.46), social phobia (RRR: 1.24), and age (RRR: 1.06). CONCLUSION: The present findings indicate that psychological factors and age influence the levels of happiness in older adults living in the community. Furthermore, better screening, diagnosis, and treatment of mental health disorders could increase the feeling of happiness among older adults. PMID- 29040890 TI - Omega-3 and omega-6 fatty acid levels in depressive and anxiety disorders. AB - BACKGROUND: Blood levels of polyunsaturated fatty acids (PUFAs) have been associated to current depression. However, it is unclear whether this association extends to remitted depression and to anxiety disorders. This study examined the relationship of PUFAs with the presence and clinical characteristics of depressive and anxiety disorders. METHODS: Cross-sectional data was used from the Netherlands Study of Depression and Anxiety, including persons with current pure depressive disorder (n=304), current pure anxiety disorder (n=548), current comorbid depressive and anxiety disorder (n=529), remitted depressive/anxiety disorder(s) (n=897), and healthy controls (n=634). Clinical characteristics included severity, subtypes, age of onset, duration of depression and anxiety and antidepressant use. Absolute values of omega-3 (N-3) and omega-6 (N-6) PUFAs and relative measures (as ratio of total Fatty Acids: the N-3:FA and N-6:FA ratio) in plasma were assessed using a nuclear magnetic resonance platform. RESULTS: Compared to controls, current comorbid depressive and anxiety disorder patients had lower N-3 PUFA levels (Cohen's d=0.09, p=0.012), and lower N-3:FA ratios (p=0.002, Cohen's d=0.11) as did current pure depressive disorder patients (Cohen's d=0.13, p=0.021), whereas N-6 PUFA levels were not different. No differences in PUFA levels were found between remitted patients and controls. Within patients, lower N-3 PUFA levels were only associated with higher depression severity (Beta=-0.42, p=0.023), whereas for N-6 PUFA levels and other clinical characteristics no clear association was observed. PUFA alterations were not associated with pure anxiety. CONCLUSION: It can be concluded that patients with a current depressive episode (especially the more severe cases with comorbid anxiety) have circulating N-3 PUFA levels lower than those in remission and healthy controls. No relationship was detected for N-6 PUFA levels. PMID- 29040891 TI - Acceptance lowers stress reactivity: Dismantling mindfulness training in a randomized controlled trial. AB - OBJECTIVE: Mindfulness interventions, which train practitioners to monitor their present-moment experience with a lens of acceptance, are known to buffer stress reactivity. Little is known about the active mechanisms driving these effects. We theorize that acceptance is a critical emotion regulation mechanism underlying mindfulness stress reduction effects. METHOD: In this three-arm parallel trial, mindfulness components were dismantled into three structurally equivalent 15 lesson smartphone-based interventions: (1) training in both monitoring and acceptance (Monitor+Accept), (2) training in monitoring only (Monitor Only), or (3) active control training (Coping control). 153 stressed adults (mean age=32years; 67% female; 53% white, 21.5% black, 21.5% Asian, 4% other race) were randomly assigned to complete one of three interventions. After the intervention, cortisol, blood pressure, and subjective stress reactivity were assessed using a modified Trier Social Stress Test. RESULTS: As predicted, Monitor+Accept training reduced cortisol and systolic blood pressure reactivity compared to Monitor Only and control trainings. Participants in all three conditions reported moderate levels of subjective stress. CONCLUSIONS: This study provides the first experimental evidence that brief smartphone mindfulness training can impact stress biology, and that acceptance training drives these effects. We discuss implications for basic and applied research in contemplative science, emotion regulation, stress and coping, health, and clinical interventions. PMID- 29040892 TI - Majority of flat epithelial atypia diagnosed on biopsy do not require surgical excision. AB - BACKGROUND: Borderline risk lesions such as flat epithelial atypia (FEA) are increasingly being diagnosed on biopsy. The need for surgery is being debated. In this study, we determined the frequency of histological upgrade following a diagnosis of FEA on biopsy and evaluated potential predictive factors. METHODS: Retrospective review was done of 194 women who underwent biopsy of indeterminate lesions (total 195 lesions) that were diagnosed as FEA. The review covered a 10 year period. Cases where malignancy was also present together with FEA within the same biopsy cores were excluded. RESULTS: Lesions diagnosed as FEA on biopsy were mostly asymptomatic and presented as microcalcifications on mammogram. Flat epithelial atypia was the only abnormality detected in one-third of cases, was associated with a benign or another borderline lesion in another third and was associated with atypical ductal hyperplasia (ADH) in another third. Six patients (3.1%) were later found to have ductal carcinoma-in-situ (DCIS) at surgery. The presence of ADH in the biopsy was the only predictor of histological upgrade to malignancy (P = 0.04, OR 11.24, 95% CI 1.10 - 115.10), and was present in 5 of the 6 patients. Surgery was advised in the last patient because of radiology pathology discordance. Thirty-six lesions (18.5%) were not excised and no interval progression or malignancy was found on follow up. CONCLUSION: Histological upgrade to malignancy was uncommon in lesions found on biopsy to be FEA. Non-operative management of biopsy-proven FEA can be considered in the absence of ADH and radiology-pathology discordance. PMID- 29040893 TI - Quality of online information on breast cancer treatment options. AB - Offering breast cancer patients treatment choice has become a priority as the involvement of patients in the decision-making process is associated with improved physical and psychological outcomes. As the Internet is increasingly being used by patients as a source of medical information, it is important to evaluate the quality of information relating to breast cancer on the Internet. We analysed 200 websites returned by google.co.uk searching "breast cancer treatment options" in terms of their typology and treatment options described. These were related to standard measures of health information quality such as the JAMA score and the presence of quality certifications, as well as readability. We found that health portals were of higher quality whilst commercial and professional websites were of poorer quality in terms of JAMA criteria. Overall, readability was higher than previously reported for other conditions, and Google ranked websites with better readability higher. Most websites discussed surgical and medical treatments. Few websites, with a large proportion being of commercial typology, discussed complementary and alternative medicine. Google ranked professional websites low whilst websites from non-profit organizations were promoted in the ranking. PMID- 29040894 TI - Demystifying endoscopic retrograde cholangiopancreatography (ERCP) during pregnancy. AB - BACKGROUND: For many years, ERCP was avoided in pregnancy given the concerns regarding the adverse effects that, with special focus on radiation, could occur in the developing fetus. However, the postponement or rejection of ERCP in pregnant women, may lead to a higher risk for mother and fetus, especially when the indication is unequivocal, namely cholangitis, biliary pancreatitis and symptomatic choledocholithiasis. SUMMARY AND KEY MESSAGES: This review aims to summarize the scarce literature on the subject in order to plan ERCP in pregnancy with the highest safety. The use of techniques that reduce radiation and increase the protection of pregnant women allow radiation levels far below the safety limits. We also discuss the various alternatives of ERCP without radiation. EUS can eliminate the need for ERCP with doubtful choledocholithiasis and plan the best approach in those with previous evidence. The possibility of performing "ERCP" with a linear echoendoscope uniquely under ultrasound control has been described. Conversely, the two-step strategy (initial sphincterotomy with stent placement without fluoroscopy and after delivery, ERCP with lithiasis extraction) proved to be safe obviating fluoroscopy. In conclusion, ERCP can be performed in pregnancy safely and effectively with minimal radiation or even no-radiation at all. PMID- 29040895 TI - Economic analysis of prenatal screening strategies for Down syndrome in singleton pregnancies in Turkey. AB - OBJECTIVES: To examine the costs and outcomes of different screening strategies for Down Syndrome (DS) in singleton pregnancies. STUDY DESIGN: A decision analytic model was developed to compare the costs and the outcomes of different prenatal screening strategies. Five strategies were compared for women under 35 year of age: 1A) triple test (TT), 2A); combined test (CT), 3A) Non-invasive Prenatal Screening Test by using cell free fetal DNA (NIPT), 4A) and 5A) NIPT as a second-step screening for high-risk patients detected by either TT, or CT respectively. For women >=35-year of age, 1B) implementing invasive test (amniocentesis -AC) and 2B) NIPT for all women were compared. Data was analyzed to obtain the outcomes, total costs, the cost per women and the incremental cost effectiveness ratios (ICERs) for screening strategies. RESULTS: Among the current strategies for women under 35 years old, CT is clearly dominated to TT, as it is more effective and less costly. Although, the current routine practice (2A) is the least-costly strategy, implementing NIPT as a second step screening to high risk women identified by CT (5A) would be more effective than 2A; leading to a 10.2% increase in the number of detected DS cases and a 96.3% reduction in procedural related losses (PRL). However, its cost to the Social Security Institution that is a public entity would be 17 times higher and increase screening costs by 1.5 times. Strategy 5A would result in an incremental cost effectiveness of 6,873,082 (PPP) US$ when compared to the current one (2A). Strategy 1B-for offering AC to all women >=35-year of age is dominated over NIPT (2B), as it would detect more DS cases and would be less costly. On the other hand, there would be 206 PRL associated with AC, but NIPT provides clear clinical benefits as there would be no PRL with NIPT. CONCLUSIONS: NIPT leads to very high costs despite its high effectiveness in terms of detecting DS cases and avoiding PRL. The cost of NIPT should be decreased, otherwise, only individuals who can afford to pay from out-of-pocket could benefit. We believe that reliable cost effective prenatal screening policies are essential in countries with low and smiddle income and high birth rates as well. PMID- 29040896 TI - Spillover effect of Japanese long-term care insurance as an employment promotion policy for family caregivers. AB - We evaluate a spillover effect of the Japanese public long-term care insurance (LTCI) as a policy to stimulate family caregivers' labor force participation. Using nationally representative data from 1995 to 2013, we apply difference-in difference propensity score matching to investigate the spillover effect in two periods: before and after the introduction of the LTCI in 2000 and before and after its major amendment in 2006. Our results show that the LTCI introduction has significant and positive spillover effects on family caregivers' labor force participation and the effects vary by gender and age. In contrast, the LTCI amendment is found to have generally negative spillover effects on their labor force participation. We draw attention to these spillover effects, as expanding labor market supply to sustain the economy would be a priority for Japan and other rapidly aging countries in the coming decades. PMID- 29040897 TI - Retirement and cognitive decline. A longitudinal analysis using SHARE data. AB - We show that a new measure of cognitive decline, that can be computed in longitudinal surveys where respondents perform the same recall memory tests over the years, is highly predictive of the onset of dementia. Using SHARE data, we investigate the way retirement affects cognitive decline over time controlling for age, education and other confounding factors. We find that retirement has a long-term detrimental effect on cognition for individuals who retire at the statutory eligibility age. It plays instead a protective role for those who retire on an early retirement scheme. PMID- 29040898 TI - Detailed effects of particle size and surface area on 222Rn emanation of a phosphate rock. AB - The dependency of radon emanation on soil texture was investigated using the closed chamber method. Ground phosphate rock with a large specific surface area was analyzed, and the presence of inner pores, as well as a high degree of roughness and heterogeneity in the phosphate particles, was found. The average radon emanation of the dry phosphate was 0.145 +/- 0.016. The emanation coefficient was highest (0.169 +/- 0.019) for the smallest particles (<25 MUm), decreasing to a constant value (0.091 +/- 0.014) for the larger particles (>210 MUm). The reduction rate followed an inverse power law. As expected, a linear dependence between the emanation coefficient and the specific surface area was found, being lower than predicted for the large specific surface area. This was most likely due to an increase in the embedding effect of radon atoms in adjacent grains separated by micropores. Results indicate that knowledge of grain radium distribution is crucial to making accurate emanation predictions. PMID- 29040899 TI - Application of topographical source model for air dose rates conversions in aerial radiation monitoring. AB - After the Fukushima Daiichi Nuclear Power Station (FDNPS) accident in 2011, aerial radiation monitoring (ARM) using a manned helicopter was conducted to rapidly measure air dose rates and the deposition of radioactive nuclides over a large area. Typically, the air dose rate is obtained by conversion from the count rate using conventional flat source model (FSM). The converted dose rate obtained via aerial monitoring poorly matches the results of ground measurement in the mountain and forest areas because FSM does not consider topographical effects. To improve the conversion accuracy, we developed new methods to analyze aerial monitoring data using topographical source model (TSM) based on the analytical calculation of the gamma-ray flux. The ARM results converted using both FSM as well as TSM were compared with ground measurement data obtained after the FDNPS accident. By using TSM, the conversion accuracy was improved. In addition, to determine a parameter sensitive to topographical effects, we examined five parameters and it was clear that the difference between the elevation just below the helicopter and the mean elevation within the measurement area was the most influential. PMID- 29040900 TI - Alleviation of Cr(VI)-induced oxidative stress in maize (Zea mays L.) seedlings by NO and H2S donors through differential organ-dependent regulation of ROS and NADPH-recycling metabolisms. AB - Chromium (Cr) contamination in soil is a growing concern in relation to sustainable agricultural production and food safety. Nitric oxide (NO) and, more recently, hydrogen sulfide (H2S) are considered to be new signalling molecules with biotechnological applications in the agronomical sector. Using 9-day-old maize (Zea mays) seedlings exposed to 200MUM Cr(VI), the potential mitigating effects of exogenous NO and H2S on chromium-induced stress in maize seedlings were investigated in roots, cotyledons and coleoptiles. Analysis of Cr content, lipid peroxidation, antioxidant enzymes (catalase and superoxide dismutase isozymes), peroxisomal H2O2-producing glycolate oxidase and the main NADPH regenerating system revealed that chromium causes oxidative stress, leading to a general increase in these activities in coleptiles and roots, with the latter organ being the most affected. However, cotyledons behaved in an opposite manner. Moreover, exogenous applications of NO and H2S to Cr-stressed maize seedlings triggered a significant response, involving the virtual restoration of the values for all these activities to those observed in unstressed seedlings, although their specific impact on ROS and NADPH-recycling metabolisms depends on the seedling organ involved. Taken together, the data indicate that gas transmitters, NO and H2S, which act as a defence against the negative effects of hexavalent chromium contamination, are alternative compounds with potential biotechnological applications. PMID- 29040901 TI - High efficiency stratification of apple cultivar Ligol seed dormancy by phytohormones, heat shock and pulsed radio frequency. AB - The aim of the study was to improve the effect of stratification of apple "Ligol" seeds by application of selected compounds, phytohormones, and physical methods For this purpose the seeds were stratified at 3 degrees C in distilled water or in the presence of potassium nitrate (KNO3), ethephon (ET), carbon monoxide (CO), hydrogen peroxide (H2O2), a mixture of KNO3, ET, CO, H2O2, gibberellins (GA3), 6 benzylaminopurine (BAP), jasmonic acid (JA), salicylic acid (SA) and a mixture of SA, GA3, BAP, JA, nitric oxide (NO), hydrogen chloride (HCL). Arranged protocols included various durations and combinations of selected compounds and phytohormones as well as laser and red light, heat shock - 2h heat shock (45 degrees C) and Pulsed Radio Frequency (PRF) were investigated by germination tests and the activity of selected enzymes, gas exchange and index of chlorophyll in leaves. The obtained results showed the possibility to shorten more effectively the time of the apple 'Ligol' dormancy removal by treatments of the stratified seeds at 3 degrees C with different biological and physical methods Selected compounds and phytohormones acted collectively as a regulatory complex controlling the course of release from dormancy. Physical methods (PRF and heat shock) additionally contributed to dormancy breakage. Duration of phytohormones or compounds impacts during stratification should be prolonged to minimum 7days to assure more balanced conditions of the regulatory complex for the acceleration of dormancy a removal. The most beneficial results were obtained after seed stratification for 7days on filter paper moistened in KNO3+Etephon+CO+H2O2 at 3 degrees C, and then on filter paper moistened in phytohormones (GA3+BAP+JA) till the end of seed germination (3 degrees C). The application of this protocol could be a very useful tool in a shortening the apple breeding cycle since the period of removing dormancy was reduced by 38days in comparison to stratified in water. PRF has also the additive role in breaking dormancy of apple 'Ligol' seed. Positive effects of compounds and phytohormones applied during stratification remarkably accelerated the growth of developed from them seedlings. Further research is needed to optimize stratification methods with appropriate contents and concentrations of compounds and phytohormones combined with PRF exposure. PMID- 29040902 TI - Primary Ewing's sarcoma of the kidney: A case report. AB - This is a 15-year-old female who presented with sudden onset left flank pain associated with nausea and vomiting and a history of weight loss. Radiological investigation revealed a large non-obstructive tumor involving the lower pole of the left kidney which was primarily thought to be a renal cell carcinoma. She underwent left open radical nephrectomy with adrenalectomy. Histopathology of the resected specimen showed features of Ewing's sarcoma of the kidney which was confirmed by cytogenetic analysis. This is a rare disease especially in the pediatric group and in reporting such a rare case we hope it helps in identifying a potential course of the disease and its response to the involved treatment. PMID- 29040903 TI - Aplasia cutis congenita as a result of interstitial laser therapy for fetal reduction in monochorionic twins: Conservative approach and outcome. AB - Monochorionic (MC) twin pregnancies are known to carry a high risk of twin-to twin transfusion syndrome (TTTS) that could lead to miscarriage and perinatal death. Demise of one fetus is frequently associated with co-fetal death. Fetal reduction by interstitial laser therapy is an effective procedure to prevent this outcome, but it may be associated with significant risks for both mother and fetus. Aplasia Cutis Congenita (ACC) may occur in up to 8% cases of fetal reduction by laser therapy. We report ACC in a preterm infant, a survivor of interstitial laser therapy for fetal reduction in MC pregnancy. Despite of massive skin lesions we were able to manage this case conservatively. Follow-up at 5 years of age revealed minimal scarring and no motor function limitations. PMID- 29040904 TI - Malignant fibrous histiocytoma in the right portion of the mandible with metastasis in pancreas. AB - BACKGROUND: Malignant fibrous histiocytoma is a sarcoma of uncertain origin that can be found both in soft tissues and in bones. It is currently called undifferentiated pleomorphic sarcoma not otherwise specified and it represents a final common pathway in several tumors that are subject to the progress of dedifferentiation. Local recurrence of the tumor in the same location where it was originated occurs in 20-30% of the total number of soft tissue sarcomas. It is less frequent in limbs and more likely to recur in retroperitoneal sarcomas and in head and neck. Most tumors grow during the first two years after treatment. Most sarcoma metastases, especially those in the head and neck (including malignant fibrous histiocytoma) present as a lung disease (90%). Extrapulmonary diseases are not frequent and can occur in lymph nodes (10%), bones (8%) and in the liver (1%). CASE REPORT: 61 years old woman with history of malignant fibrous histiocytoma in the right portion of the mandible, resected four years ago. Subsequent checkups did not show any disease. The patient reports a constant abdominal pain not diagnosed, related to a pancreatic nodule. CONCLUSION: Malignant fibrous histiocytoma is a potentially curable disease. The most important part of the treatment is complete surgical removal, usually followed by adjuvant radiation therapy. Chemotherapy is a treatment usually used only on those patients with higher recurrence risk or on those showingrecurrence or who have already showed recurrence. PMID- 29040905 TI - Bilateral methachronous testicular germ cell tumor and testicular microlithiasis in a child: Genetic analysis and insights. A case report. AB - OBJECTIVES: To report our experience with a case of a child with bilateral testicular micro-lithiasis (TML) who developed bilateral metachronous testicular germ cell tumor (TGCT) and determine the most appropriate follow-up and care management in children with testicular micro calcifications in regards to the theoretical risk of testicular cancer. CASE REPORT: A 12 year-old boy was diagnosed with TGCT and TML. Ten years after complete remission, he presented with a recurrence on the contralateral testis. Genetic screening was performed on both resected and the patient's karyotype was analyzed. RESULTS: Blood karyotype was normal. Aberrations were found in the tumor karyotype. CGH array showed alterations in chromosome arm 12p. DISCUSSION: TML is frequently associated with testicular malignancy in adults: in 16.9% of cases the normal contralateral testicle develops TML in TGCT. Recent works of literature find no relationship between TML and cancer in general, but in patients with additional risks, the relationship becomes stronger. Some authors suggest that environmental components and genetics are determinant factors. This is highly suspected in our reported case. It would seem that TML is not a precancerous lesion per se, but rather a marker of an at-risk situation. Long term evolution is uncertain and regular self palpation that starts before puberty is the only way to ensure proper screening and monitoring. CONCLUSION: TML have been suspected to be a sign of testicular dysgenesis syndrome, which yields a risk of developing TGCT in case of noxious associations. In patients with a history of TGCT contralateral TML is alarming and aggressive surgical management should be discussed. Therapeutic education of these patients on self-palpation is the best way to ensure proper follow-up. PMID- 29040906 TI - A case report of choledocholithiasis 33 years after cholecystectomy. AB - INTRODUCTION: Choledocholithiasis after cholecystectomy is rare and often attributed to surgical clip migration and subsequent nidus formation. PRESENTATION OF CASE: This case demonstrates choledocholithiasis following cholecystectomy with a latency period of 33 years. DISCUSSION: The patient presented with pain of the right upper quadrant (RUQ). Subsequent abdominal pelvic CT imaging revealed dilation of the common bile duct. Further Endoscopic Retrograde Cholangiopancreatography was indicative of choledocholithiasis. Additional findings included a long cystic duct remnant and surgical clips in the RUQ. CONCLUSION: The patient underwent biliary sphincterotomy and sludge and stone fragments were swept from the biliary tree. To our knowledge, a latency of 33 years between cholecystectomy and choledocholithiasis has never been reported before, at least not in a patient without coexisting duodenal diverticulum, a condition associated with lithiasis of the common bile duct. Our case raises discussion of potential etiologies for such long latency, including surgical clip migration, remnant cystic duct lithiasis, and primary choledocholithiasis; and further details the incidence of such long latency periods following cholecystectomy. PMID- 29040907 TI - What do monkeys know about others' knowledge? AB - Recently, comparative psychologists have suggested that primates represent others' knowledge states. Evidence for this claim comes from studies demonstrating that primates expect others to maintain representations of objects when those objects are not currently visible. However, little work has explored whether nonhuman primates expect others to share the more sophisticated kinds of object knowledge that they themselves possess. We therefore investigated whether primates attribute to others knowledge that is acquired through the mental transformation of a static object representation. Specifically, we tested whether rhesus macaques (Macaca mulatta) expected a human demonstrator to solve a difficult rotational displacement task. In Experiment 1, monkeys watched a demonstrator hide a piece of fruit in one of two boxes. The monkey and the demonstrator then watched the boxes rotate 180 degrees . We found that monkeys looked longer when the demonstrator reached into the box that did not contain the fruit, indicating that they expected her to be able to track the fruit to its current location. In Experiment 2, we ruled out the possibility that monkeys simply expected the demonstrator to search for the food in its true location. When the demonstrator did not witness the rotation event, monkeys looked equally long at the two reaching outcomes. These results are consistent with the interpretation that rhesus macaques expect others to dynamically update their representations of unseen objects. PMID- 29040908 TI - Predicting lysine glycation sites using bi-profile bayes feature extraction. AB - Glycation is a nonenzymatic post-translational modification which has been found to be involved in various biological processes and closely associated with many metabolic diseases. The accurate identification of glycation sites is important to understand the underlying molecular mechanisms of glycation. As the traditional experimental methods are often labor-intensive and time-consuming, it is desired to develop computational methods to predict glycation sites. In this study, a novel predictor named BPB_GlySite is proposed to predict lysine glycation sites by using bi-profile bayes feature extraction and support vector machine algorithm. As illustrated by 10-fold cross-validation, BPB_GlySite achieves a satisfactory performance with a Sensitivity of 63.68%, a Specificity of 72.60%, an Accuracy of 69.63% and a Matthew's correlation coefficient of 0.3499. Experimental results also indicate that BPB_GlySite significantly outperforms three existing glycation sites predictors: NetGlycate, PreGly and Gly PseAAC. Therefore, BPB_GlySite can be a useful bioinformatics tool for the prediction of glycation sites. A user-friendly web-server for BPB_GlySite is established at 123.206.31.171/BPB_GlySite/. PMID- 29040910 TI - Intensity inhomogeneity correction of SD-OCT data using macular flatspace. AB - Images of the retina acquired using optical coherence tomography (OCT) often suffer from intensity inhomogeneity problems that degrade both the quality of the images and the performance of automated algorithms utilized to measure structural changes. This intensity variation has many causes, including off-axis acquisition, signal attenuation, multi-frame averaging, and vignetting, making it difficult to correct the data in a fundamental way. This paper presents a method for inhomogeneity correction by acting to reduce the variability of intensities within each layer. In particular, the N3 algorithm, which is popular in neuroimage analysis, is adapted to work for OCT data. N3 works by sharpening the intensity histogram, which reduces the variation of intensities within different classes. To apply it here, the data are first converted to a standardized space called macular flat space (MFS). MFS allows the intensities within each layer to be more easily normalized by removing the natural curvature of the retina. N3 is then run on the MFS data using a modified smoothing model, which improves the efficiency of the original algorithm. We show that our method more accurately corrects gain fields on synthetic OCT data when compared to running N3 on non flattened data. It also reduces the overall variability of the intensities within each layer, without sacrificing contrast between layers, and improves the performance of registration between OCT images. PMID- 29040909 TI - Treatment with Fenofibrate plus a low dose of Benznidazole attenuates cardiac dysfunction in experimental Chagas disease. AB - Trypanosoma cruzi induces serious cardiac alterations during the chronic infection. Intense inflammatory response observed from the beginning of infection, is critical for the control of parasite proliferation and evolution of Chagas disease. Peroxisome proliferator-activated receptors (PPAR)-alpha, are known to modulate inflammation. In this study we investigated whether a PPAR alpha agonist, Fenofibrate, improves cardiac function and inflammatory parameters in a murine model of T. cruzi infection. BALB/c mice were sequentially infected with two T. cruzi strains of different genetic background. Benznidazole, commonly used as trypanocidal drug, cleared parasites but did not preclude cardiac pathology, resembling what is found in human chronic chagasic cardiomyopathy. Fenofibrate treatment restored to normal values the ejection and shortening fractions, left ventricular end-diastolic, left ventricular end-systolic diameter, and isovolumic relaxation time. Moreover, it reduced cardiac inflammation and fibrosis, decreased the expression of pro-inflammatory (IL-6, TNF-alpha and NOS2) and heart remodeling mediators (MMP-9 and CTGF), and reduced serum creatine kinase activity. The fact that Fenofibrate partially inhibited NOS2 expression and NO release in the presence of a PPAR-alpha non-competitive inhibitor, suggested it also acted through PPAR-alpha-independent pathways. Since IkappaBalpha cytosolic degradation was inhibited by Fenofibrate, it can be concluded that the NFkappaB pathway has a role in its effects. Thus, we demonstrate that Fenofibrate acts through PPAR-alpha-dependent and -independent pathways. Our study shows that combined treatment with Fenofibrate plus Benznidazole is able both to reverse the cardiac dysfunction associated with the ongoing inflammatory response and fibrosis and to attain parasite clearance in an experimental model of Chagas disease. PMID- 29040912 TI - Establishment of an induced pluripotent stem (iPS) cell line from dermal fibroblasts of an asymptomatic patient with dominant PRPF31 mutation. AB - A human iPS cell line was generated from fibroblasts of a phenotypically unaffected patient from a family with PRPF31-associated retinitis pigmentosa (RP). The transgene-free iPS cells were generated with the human OSKM transcription factors using the Sendai-virus reprogramming system. iPS cells contained the expected c.709-734dup substitution in exon 8 of PRPF31, expressed the expected pluripotency markers, displayed in vivo differentiation potential to the three germ layers and had normal karyotype. This cellular model will provide a powerful tool to study the unusual pattern of inheritance of PRPF31-associated RP. PMID- 29040911 TI - A deep learning model integrating FCNNs and CRFs for brain tumor segmentation. AB - Accurate and reliable brain tumor segmentation is a critical component in cancer diagnosis, treatment planning, and treatment outcome evaluation. Build upon successful deep learning techniques, a novel brain tumor segmentation method is developed by integrating fully convolutional neural networks (FCNNs) and Conditional Random Fields (CRFs) in a unified framework to obtain segmentation results with appearance and spatial consistency. We train a deep learning based segmentation model using 2D image patches and image slices in following steps: 1) training FCNNs using image patches; 2) training CRFs as Recurrent Neural Networks (CRF-RNN) using image slices with parameters of FCNNs fixed; and 3) fine-tuning the FCNNs and the CRF-RNN using image slices. Particularly, we train 3 segmentation models using 2D image patches and slices obtained in axial, coronal and sagittal views respectively, and combine them to segment brain tumors using a voting based fusion strategy. Our method could segment brain images slice-by slice, much faster than those based on image patches. We have evaluated our method based on imaging data provided by the Multimodal Brain Tumor Image Segmentation Challenge (BRATS) 2013, BRATS 2015 and BRATS 2016. The experimental results have demonstrated that our method could build a segmentation model with Flair, T1c, and T2 scans and achieve competitive performance as those built with Flair, T1, T1c, and T2 scans. PMID- 29040913 TI - Generation of human erythroblast-derived iPSC line using episomal reprogramming system. AB - Peripheral blood mononuclear cells were isolated and cultured to a pure pro-EBL population and reprogrammed using episomal plasmids. The pluripotency of transgene-free induced pluripotent stem cell (iPSC) line was verified by the expression of pluripotency-associated markers and by in vitro spontaneous differentiation towards the 3 germ layers. The iPSC line showed normal karyotype. Peripheral blood is a non-invasive easy accessible cell source and combined with EBL outgrowth in vitro, a routine process obtaining sufficient amount of homogenous cells can be obtained within a week. Using episomal delivery, pro-EBLs can be reprogrammed in a transgene-free, cost effective system. PMID- 29040914 TI - Efficient capture, rapid killing and ultrasensitive detection of bacteria by a nano-decorated multi-functional electrode sensor. AB - In this work, we demonstrated a nano-decorated porous impedance electrode sensor for efficient capture, rapid killing and ultrasensitive detection of bacteria. The multi-functional sensor was prepared by a facile sonochemical method via in situ deposition of antibacterial prickly Zn-CuO nanoparticles and graphene oxide (GO) nanosheets on a Ni porous electrode. Due to the surface burr-like nanostructures, the nano-decorated impedance sensor exhibited very good bacterial capture efficiency (70 - 80% in 20min) even at a low concentration of 50 CFU mL 1, rapid antibacterial rate (100% killing in 30min) and high detection sensitivity (as low as 10 CFU mL-1). More importantly, the nano-decorated sensor has proven to be highly effective in quantitative detection of bacteria in a biological sample, for example, a rat blood sample spiked with E. coli. Despite the complexity of blood, the sensor still exhibited excellent detection precision within 30min at bacteria concentrations ranging from 10 - 105 CFU mL-1. The simplicity, rapidity, sensitivity, practicability and multifunctionality of this impedance sensor would greatly facilitate applications in portable medical devices for on-the-spot diagnosis and even the possibility for simultaneous therapy of diseases caused by bacterial infections. PMID- 29040915 TI - A novel three-dimensional carbonized PANI1600@CNTs network for enhanced enzymatic biofuel cell. AB - A novel three-dimensional (3D) carbon composite of PANI1600@CNTs with rhizobium like structure is prepared by in-situ polymerization of aniline monomers around and along the functionalized carbon nanotubes (CNTs) and then carbonized at 1600 degrees C for enzymatic biofuel cells (EBFCs). The SEM and TEM images clearly show that the carbonized PANI grew seamlessly on the surface of CNTs and presented the rhizobium-like structure. The carbonized PANI acts like conductive "glue" and connects the adjacent tubes together, which can assemble the CNTs into a 3D network. The PANI1600@CNTs composite modified glassy carbon electrodes based on glucose oxidase (GOx) and laccase (Lac) exhibit high electrochemical performance. A glucose//O2 EBFC constitutes of the fabricated anode and cathode performs a maximum power density of 1.12mWcm-2 at 0.45V. Furthermore, three of the fabricated EBFCs in series are able to lightening up a yellow light-emitting diode (LED) whose turn-on voltage is about at 1.8V. This work may be helpful for exploiting novel substrates by carbonizing the composites of conducting polymer with nano materials at high-temperature for immobilization of enzymes in the EBFCs or biosensor fields. PMID- 29040916 TI - Versatile on-stage microfluidic system for long term cell culture, micromanipulation and time lapse assays. AB - We report here a versatile on-stage microfluidic cell culture and assay system which is compatible with different microscopes and sensors, can simultaneously perform steps of long term cell culture, high throughput time lapse cell assays/imaging, and cell micromanipulations. With the system, we cultured a variety of cells for different periods of time and monitored their cell morphology, migration and division. We also performed a series non-invasive real time in situ time lapse assays and micromanipulations on different cells. They include: the first time lapse imaging and measurements on the instantaneous variations of morphology, biomechanical properties and the intracellular protein of human red blood cells in responding to pH fluctuation, drug action and electromagnetic radiation; the first continuous time lapse Raman micro spectroscopy on a CHO cell in different phases of its entire life cycles; the micro-transfection of GFP into B16 cells and the follow up observation of the cell's morphology and expressed GFP fluorescence varying with incubation time and cell generations. The performance of these experiments not only demonstrated the capability of the system, but also proposed a variety of novel methods for obtaining time- and spatially-resolved information about the cellular and molecular heterogeneity and transformation during development or stimulations. PMID- 29040917 TI - Enhanced diffusometric immunosensing with grafted gold nanoparticles for detection of diabetic retinopathy biomarker tumor necrosis factor-alpha. AB - Diffusometry is sensitive to geometric changes of particles. Target antigens can be detected through diffusivity changes resulting from their immunoreactions by functionalizing particle surface with a specific antibody. Considering that Brownian motion is a self-driven phenomenon, diffusometric immunosensing features several characteristics, such as no-washing steps, rapid detection, high flexibility, and high sensitivity. Until recently, this technique has been applied to many biomedical fields, such as monitoring of microorganism motility and diagnosis of diseases with biomarkers. Despite the abovementioned advantages, diffusivity changes in conventional diffusometry can be compromised at low abundance antigens because proteins are much smaller than capture particles. To overcome such restriction, we present an improved diffusometric immunosensing technique by grafting additional gold nanoparticles (AuNPs) to capture particles to enhance size changes. A diabetic retinopathy (DR) biomarker, tumor necrosis factor-alpha was selected to evaluate the proposed immunosensing technique. Spherical AuNPs showed better enhancement than rod-like AuNPs during measurement. Limit of detection was improved by at least 100-fold down to 10pg/mL. A dichotomous method was also developed to enable rapid detection and avoid tedious calibration. The relationship of concentrations between the two solutions used can be explicitly determined by comparing diffusivity of an unknown concentration of target molecules with that of a reference solution. Minimum discernible concentration reached as low as twofold higher or lower than basal concentration. Tear samples were collected from four volunteers, including three healthy subjects and one proliferative DR patient to prove the concept in diagnosis of the disease. All data showed good agreement with preset conditions. The technique eventually provides an insight into rapid diagnoses of diseases in the early stage. PMID- 29040918 TI - Tumor cryoablation in combination with natural killer cells therapy and Herceptin in patients with HER2-overexpressing recurrent breast cancer. AB - In this study, we investigated the clinical benefits of a combination of tumor cryoablation with natural killer (NK) cells therapy and Herceptin for human epidermal growth factor (HER) 2-overexpressing recurrent breast cancer. From May 2015 to May 2016, 48 patients who met the enrollment criteria were assigned to three groups (n=16): cryoablation group (group I), cryoablation-NK cells therapy group (group II) and cryoablation-NK cells therapy-Herceptin group (group III). Safety and short-term effects were evaluated. All the adverse effects were manageable and acceptable. The three-therapy combination treatment not only yielded good clinical efficacy, it also improved the quality of life; reduced levels of circulating tumor cells (CTCs); reduced carcino-embryonic antigen (CEA) and cancer antigen 15-3 (CA15-3) expression; enhanced immune function significantly. Furthermore, it can resulte in significant prolongation of progression free survival (PFS). This is the first clinical study to demonstrate the benefit of the three-therapy combination of tumor cryoablation, NK cells therapy, and Herceptin for HER2-overexpressing recurrent breast cancer. PMID- 29040920 TI - Ancestry prediction in Singapore population samples using the Illumina ForenSeq kit. AB - The ability to predict bio-geographic ancestry can be valuable to generate investigative leads towards solving crimes. Ancestry informative marker (AIM) sets include large numbers of SNPs to predict an ancestral population. Massively parallel sequencing has enabled forensic laboratories to genotype a large number of such markers in a single assay. Illumina's ForenSeq DNA Signature Kit includes the ancestry informative SNPs reported by Kidd et al. In this study, the ancestry prediction capabilities of the ForenSeq kit through sequencing on the MiSeq FGx were evaluated in 1030 unrelated Singapore population samples of Chinese, Malay and Indian origin. A total of 59 ancestry SNPs and phenotypic SNPs with AIM properties were selected. The bio-geographic ancestry of the 1030 samples, as predicted by Illumina's ForenSeq Universal Analysis Software (UAS), was determined. 712 of the genotyped samples were used as a training sample set for the generation of an ancestry prediction model using STRUCTURE and Snipper. The performance of the prediction model was tested by both methods with the remaining 318 samples. Ancestry prediction in UAS was able to correctly classify the Singapore Chinese as part of the East Asian cluster, while Indians clustered with Ad-mixed Americans and Malays clustered in-between these two reference populations. Principal component analyses showed that the 59 SNPs were only able to account for 26% of the variation between the Singapore sub-populations. Their discriminatory potential was also found to be lower (GST=0.085) than that reported in ALFRED (FST=0.357). The Snipper algorithm was able to correctly predict bio-geographic ancestry in 91% of Chinese and Indian, and 88% of Malay individuals, while the success rates for the STRUCTURE algorithm were 94% in Chinese, 80% in Malay, and 91% in Indian individuals. Both these algorithms were able to provide admixture proportions when present. Ancestry prediction accuracy (in terms of likelihood ratio) was generally high in the absence of admixture. Misclassification occurred in admixed individuals, who were likely offspring of inter-ethnic marriages, and hence whose self-reported bio-geographic ancestries were dependent on that of their fathers, and in individuals of minority sub populations with inter-ethnic beliefs. The ancestry prediction capabilities of the 59 SNPs on the ForenSeq kit were reasonably effective in differentiating the Singapore Chinese, Malay and Indian sub-populations, and will be of use for investigative purposes. However, there is potential for more accurate prediction through the evaluation of other AIM sets. PMID- 29040919 TI - Functional analyses of the interaction of chicken interleukin 23 subunit p19 with IL-12 subunit p40 to form the IL-23 complex. AB - This study represents the first description of the cloning of chicken IL-23p19 (ChIL-23alpha) and the function of the IL-23 complex in birds. Multiple alignment of ChIL-23alpha with other known IL-23alpha amino acid sequences revealed regions of amino acid conservation. The homologies of ChIL-23alpha, IL-12p35, and similar mammalian subunits ranged between 26% and 42%. ChIL-23alpha consisted of four exons and three introns; similar to those in humans and mice, and limited conservation of synteny between the human and chicken genomes was observed. Using bioinformatics tools, we identified the NF-kappaB, C/EBPalpha-beta, c-Jun, c-Rel, AP-1, GATA-1, and ER promoter sites in ChIL-23alpha. Moreover, IL-23alpha mRNA was more highly expressed than IL-12p40 and IL-12p35 mRNA in several organs of chickens infected with Salmonella. In addition, ChIL-23 complex are associated with IL-23R, IL-12Rbeta1 receptors; activate the JAK2/TYK2, STAT1/3, SOCS1 genes, and induced proinflammatory cytokines in immune cells. Collectively, these results indicate that ChIL-23 is a member of the IL-12 family, has proinflammatory properties related to IL-23R and IL-12Rbeta1 receptor expression, and activates the JAK/STAT signaling pathway that results in the interaction of ChIL-23alpha with ChIL-12p40 to form the novel ChIL-23 complex. Our results provide novel insights into the regulation of immunity, inflammation, and immunopathology. PMID- 29040921 TI - Effect of local cooling on excitation-contraction coupling in myasthenic muscle: Another mechanism of ice-pack test in myasthenia gravis. AB - OBJECTIVE: The ice-pack test is a convenient diagnostic testing procedure for myasthenia gravis (MG). We investigated the underlying mechanism of the ice-pack test performed on bilateral masseters. METHODS: We performed trigeminal repetitive nerve stimulation (RNS), excitation-contraction (E-C) coupling assessment (Imai's method) and bite force measurement before and after cooling of the masseters in MG patients and normal controls. After placing the ice-pack on the masseters for 3min, serial recordings of the three tests were performed at various time intervals during 10min after cooling. RESULTS: The bite force increased significantly after cooling in ice-pack-positive MG patients. The acceleration and acceleration ratio (acceleration at a given time to baseline acceleration) of jaw movement increased significantly after cooling of the masseters in ice-pack-positive MG patients compared to ice-pack-negative patients and normal controls. The prolonged effect of cooling continued until the end of recording even though decremental response to RNS had returned to baseline value. CONCLUSIONS: Cooling of myasthenic muscle may induce two effects. One is relatively short effect on electrical synaptic transmission at the endplate, and another is prolonged effect on E-C coupling in the muscle. SIGNIFICANCE: The ice pack test induces a prolonged effect of ameliorating impaired E-C coupling in MG. PMID- 29040922 TI - Plasticity induced by non-invasive transcranial brain stimulation: A position paper. AB - Several techniques and protocols of non-invasive transcranial brain stimulation (NIBS), including transcranial magnetic and electrical stimuli, have been developed in the past decades. Non-invasive transcranial brain stimulation may modulate cortical excitability outlasting the period of non-invasive transcranial brain stimulation itself from several minutes to more than one hour. Quite a few lines of evidence, including pharmacological, physiological and behavioral studies in humans and animals, suggest that the effects of non-invasive transcranial brain stimulation are produced through effects on synaptic plasticity. However, there is still a need for more direct and conclusive evidence. The fragility and variability of the effects are the major challenges that non-invasive transcranial brain stimulation currently faces. A variety of factors, including biological variation, measurement reproducibility and the neuronal state of the stimulated area, which can be affected by factors such as past and present physical activity, may influence the response to non-invasive transcranial brain stimulation. Work is ongoing to test whether the reliability and consistency of non-invasive transcranial brain stimulation can be improved by controlling or monitoring neuronal state and by optimizing the protocol and timing of stimulation. PMID- 29040923 TI - Six factors of adult dyslexia assessed by cognitive tests and self-report questions: Very high predictive validity. AB - The Multiple Diagnostic Digital Dyslexia Test for Adults (MDDDT-A) consists of 12 newly developed tests and self-report questions in the Dutch language. Predictive validity and construct validity were investigated and compared with validity of a standard test battery of dyslexia (STB) in a sample of 154 students. There are three main results. First, various analyses of principal components showed that six or more factors of dyslexia can be distinguished (rapid naming, spelling, reading, short-term memory, confusion, phonology, attention, complexity). All factors are represented by the MDDDT-A. Second, various discriminant analyses showed good predictive validity for both the tests of the MDDDT-A (90%) and the STB (90%). However, predictive validity of the questionnaire was highest (97%). Third, we analysed the best predictors of dyslexia and found that predictive validity is higher when construct validity is high, that is when a set of predictors represents many characteristics of dyslexia. The main conclusion is that a digital test battery can be a reliable screening instrument for dyslexia in students, especially when it is accompanied by self-report questions. A theoretical conclusion is that dyslexia is characterized by at least six cognitive impairments in a complex way. In students, this structure may be modulated by high intelligence and good schooling through various compensation strategies. It is therefore recommended to include assessments of all characteristics of dyslexia to achieve the most reliable diagnoses in different samples and in different countries. PMID- 29040924 TI - Early social communication in infants with fragile X syndrome and infant siblings of children with autism spectrum disorder. AB - BACKGROUND: Little research in fragile X syndrome (FXS) has prospectively examined early social communication. AIMS: To compare early social communication in infants with FXS, infant siblings of children with autism spectrum disorder (ASIBs), and typically developing (TD) infants. METHODS AND PROCEDURES: Participants were 18 infants with FXS, 21 ASIBs, and 22 TD infants between 7.5 14.5 months. Social communication was coded using the Communication Complexity Scale during the administration of Autism Observation Scale for Infants. OUTCOMES AND RESULTS: Descriptively different patterns were seen across the three groups. Overall infants with FXS had lower social communication than ASIBs or TD infants when controlling for nonverbal cognitive abilities. However, infants with FXS had similar levels of social communication as ASIBs or TD infants during peek-a-boo. No differences were observed between ASIBs and TD infants. For all infants, higher social communication was related to lower ASD risk. CONCLUSIONS AND IMPLICATIONS: Findings provide insight into the developmental course of social communication in FXS. The dynamic nature of social games may help to stimulate communication in infants with FXS. Language interventions with a strong social component may be particularly effective for promoting language development in FXS. PMID- 29040925 TI - The natural number bias and its role in rational number understanding in children with dyscalculia. Delay or deficit? AB - BACKGROUND: Previous research indicated that in several cases learners' errors on rational number tasks can be attributed to learners' tendency to (wrongly) apply natural number properties. There exists a large body of literature both on learners' struggle with understanding the rational number system and on the role of the natural number bias in this struggle. However, little is known about this phenomenon in learners with dyscalculia. AIMS: We investigated the rational number understanding of learners with dyscalculia and compared it with the rational number understanding of learners without dyscalculia. METHOD: Three groups of learners were included: sixth graders with dyscalculia, a chronological age match group, and an ability match group. RESULTS: The results showed that the rational number understanding of learners with dyscalculia is significantly lower than that of typically developing peers, but not significantly different from younger learners, even after statistically controlling for mathematics achievement. CONCLUSION: Next to a delay in their mathematics achievement, learners with dyscalculia seem to have an extra delay in their rational number understanding, compared with peers. This is especially the case in those rational number tasks where one has to inhibit natural number knowledge to come to the right answer. PMID- 29040926 TI - A rapid, naked-eye detection of hypochlorite and bisulfite using a robust and highly-photostable indicator dye Quinaldine Red in aqueous medium. AB - A "naked-eye" detection of health hazardous bisulfite (HSO3-) and hypochlorite (ClO-) using an indicator dye (Quinaldine Red, QR) in a wide range of pH is demonstrated. The molecule contains a quinoline moiety linked to an N,N dimethylaniline moiety with a conjugated double bond. Treatment of QR with HSO3- and ClO-, in aqueous solution at near-neutral pH, resulted in a colorless product with high selectivity and sensitivity. The detection limit was 47.8MUM and 0.2MUM for HSO3- and ClO- respectively. However, ClO- was 50 times more sensitive and with 2 times faster response compared to HSO3-. The detail characterization and related analysis demonstrate the potential of QR for a rapid, robust and highly efficient colorimetric sensor for the practical applications to detect hypochlorite in water samples. PMID- 29040927 TI - Combination of hollow fluorescent carbon and gold nanoparticles: A super catalyst. AB - Hollow fluorescent carbon nanoparticles (HFCNs) have been combined with gold nanoparticles (AuNPs) to produce a special catalyst. The catalytic properties of HFCNs and AuNPs were exploited to conceptualize the new catalytic functionality. The AuNP-embedded-HFCNs produced in situ were found to massively enhance the rate of reduction of 4-nitrophenol (a model reaction) in presence of sodium borohydride. Comparison with functioning of other nanoparticulate catalysts on the same reaction proved our product to be an extremely efficient catalyst. PMID- 29040928 TI - Calorimetric and spectroscopic studies of the interaction between zidovudine and human serum albumin. AB - A quantitative analysis of the interaction between zidovudine (AZT) and human serum albumin (HSA) was achieved using Isothermal titration calorimetry (ITC) in combination with fluorescence and 1H NMR spectroscopy. ITC directly measure the heat during a biomolecular binding event and gave us thermodynamic parameters and the characteristic association constant. By fluorescence quenching, the binding parameters of AZT-HSA interaction was determined and location to binding site I of HSA was confirmed. Via T1 NMR selective relaxation time measurements the drug protein binding extent was evaluated as dissociation constants Kd and the involvement of azido moiety of zidovudine in molecular complex formation was put in evidence. All three methods indicated a very weak binding interaction. The association constant determined by ITC (3.58*102M-1) is supported by fluorescence quenching data (2.74*102M-1). The thermodynamic signature indicates that at least hydrophobic and electrostatic type interactions played a main role in the binding process. PMID- 29040929 TI - Determination of geographical origin and icariin content of Herba Epimedii using near infrared spectroscopy and chemometrics. AB - Near infrared (NIR) spectroscopy coupled with chemometrics was used to discriminate the geographical origin of Herba Epimedii in this work. Four different classification models, namely discriminant analysis (DA), back propagation neural network (BPNN), K-nearest neighbor (KNN), and support vector machine (SVM), were constructed, and their performances in terms of recognition accuracy were compared. The results indicated that the SVM model was superior over the other models in the geographical origin identification of Herba Epimedii. The recognition rates of the optimum SVM model were up to 100% for the calibration set and 94.44% for the prediction set, respectively. In addition, the feasibility of NIR spectroscopy with the CARS-PLSR calibration model in prediction of icariin content of Herba Epimedii was also investigated. The determination coefficient (RP2) and root-mean-square error (RMSEP) for prediction set were 0.9269 and 0.0480, respectively. It can be concluded that the NIR spectroscopy technique in combination with chemometrics has great potential in determination of geographical origin and icariin content of Herba Epimedii. This study can provide a valuable reference for rapid quality control of food products. PMID- 29040930 TI - DFT computations on: Crystal structure, vibrational studies and optical investigations of a luminescent self-assembled material. AB - The current work undertakes the growth and the physicochemical properties of a novel green-yellow luminescence semi-organic material, the 3-picolylammonium bromide abbreviated (Pico-Br). In this paper, we report the X-ray diffraction measurements which show that the crystal lattice consists of distinct 3 picolylammonium cations and free bromide anions connected via NH?Br and NH?N hydrogen bonds leading to form a two dimensional frameworks. Molecular geometry compared with its optimized counterpart shows that the quantum chemical calculations carried out with density functional method (DFT) well produce the perceived structure by X-ray resolution of the studied material. To provide further insight into the spectroscopic properties, additional characterization of this material have been performed with Raman and infrared studies at room temperature. Theoretical computations have been computed using the (DFT) method at B3LYP/LanL2DZ level of theory implemented within Gaussian 03 program to study the vibrational spectra of the investigated molecule in the ground state. Optical absorption spectrum inspected by UV-visible absorption reveals the appearance of sharp optical gap of 280nm (4.42eV) as well as a strong green photoluminescence emission at 550nm (2.25eV) is detected on the photoluminescence (PL) spectrum at room temperature. Using the TD/DFT method, HOMO-LUMO energy gap and the Mulliken atomic charges were calculated in order to get an insight into the material. Good agreement between the theoretical results and the experimental ones was predicted. PMID- 29040931 TI - A combined experimental (IR, Raman and UV-Vis) and quantum chemical study of canadine. AB - Plant based natural products cover a major sector of the medicinal field, as such focus on plant research has been increased all over the world. As an attempt to aid that research, we have performed structural and spectroscopic analysis of a natural product, an alkaloid: canadine. Both ab initio Hartree-Fock (HF) and density functional theory (DFT) employing B3LYP using 6-311++G(d,p) basis set were used for the calculations. The calculated vibrational frequencies were scaled and compared with the experimental infrared and Raman spectra. The complete vibrational assignments were made using potential energy distribution. The structure-activity relation has also been interpreted by mapping electrostatic potential surface and evaluating the reactivity descriptors, which are valuable information for quality control of medicines and drug-receptor interactions. Natural bond orbital analysis has also been performed to understand the stability and hyperconjugative interactions of the molecule. Furthermore, UV Vis spectra have been recorded in an ethanol solvent (EtOH) and the electronic property has been analyzed employing TD-DFT for both gaseous and solvent phase. The HOMO and LUMO calculation with their energy gap show that charge transfer occurs within the molecule. Additionally, the nonlinear optical properties of the title compound have been interpreted that predicts it's the best candidate for the NLO materials. PMID- 29040932 TI - Fabrication of porous covalent organic frameworks as selective and advanced adsorbents for the on-line preconcentration of trace elements against the complex sample matrix. AB - Herein, for the first time, the typical porous Covalent Organic Frameworks (COFs) CTpBD with superior chemical stability and large surface area were applied as sorbents for solid phase extraction of trace ions via flow injection followed by inductively coupled plasma mass spectrometry (ICP-MS) detection. The well prepared and fully-characterized CTpBD COFs were filled in solid phase extraction cartridge as novel and robust adsorbents for element analysis. Separation and enrichment of Cr (III), Mn (II), Co (II), Ni (II), Cd (II), V (V), Cu (II), As (III), Se (IV), and Mo (VI) was then carried out, and the contents were measured by ICP-MS. Owing to the large surface area and instinctive porous structure of CTpBD, preconcentration of the target trace elements via COF-filled on-line SPE column has achieved low detection limits of 2.1-21.6ngL-1 along with a wide linearity range at 0.05-25MUgL-1 for all target ions. The relative standard deviations (RSD) of 1.2%-4.3% obtained via 11 parallel determinations at the sample concentration of 100ngL-1 revealed excellent repeatability of the developed methods Our proposed methods have been successfully utilized for trace element analysis in environmental and food samples. PMID- 29040933 TI - Evaluation of MnO2-templated iron oxide-coated diatomites for their catalytic performance in heterogeneous photo Fenton-like system. AB - Herein, iron oxide-coated diatomites were prepared through hydrothermal synthesis and sacrificial template redox etching reaction. The microstructure characterization results revealed that the Fe2O3 nanorods were uniformly distributed on the surface of diatomite. The effects of diverse synthetic parameters on morphology of as-synthesized Fe2O3@diatomite were investigated. When the reaction time was prolonged from 12h to 24h, the morphology of FeOOH would change from nanorods into nanoflowers. Two different crystal phases of Fe2O3@diatomite were obtained from the FeOOH@diatomite samples calcined under different atmospheres. The catalytic activity of alpha-Fe2O3@diatomite was evaluated by the heterogeneous photo Fenton-like system through degradation of methylene blue (MB, 10 - 40mgL-1) in the presence of hydrogen peroxide (H2O2, 9mM - 120mM) under UV light irradiation. It was found that alpha-Fe2O3@diatomite composites showed very excellent degradation efficiency, which was about 99% within 120min under UV irradiation. This catalyst extended the range of pH values of homogeneous Fenton reaction, in which the MB removal rate was maintained over 80.8%. Moreover, the alpha-Fe2O3@diatomite catalyst still showed sound reusability after 5 rounds of degradation of MB dye. In principles, a possible photo-catalytic mechanism was proposed to testify metal oxides composites for heterogeneous photo Fenton-like reaction. PMID- 29040934 TI - Calibration to tool use during visually-guided reaching. AB - In studying human perception and performance researchers must understand how the body schema is modified to accurately represent one's capabilities when tools are used, as humans use tools that alter their capabilities frequently. The present work tested the idea that calibration is responsible for modifying an embodied action schema during tool use. We investigated calibration in the context of manual activity in near space through a behavioral measure. Participants made blind reaches to various visual distances in pre- and post-test phases using a short tool that did not extend their reach. During an intervening calibration phase they received visual feedback about the accuracy of their reaches, with half of the participants reaching with a tool that extended their reach by 30cm. Results indicated both groups showed calibration appropriate to the type of tool that they used during the calibration phase, and this calibration carried over to reaches made in the post-test. These results inform discussions on the proposed embodied action schema and have applications to virtual reality, specifically the development of self-avatars. PMID- 29040935 TI - Thermal stability study of crystalline and novel spray-dried amorphous nilotinib hydrochloride. AB - The thermal characteristics and the thermal degradation of crystalline and amorphous nilotinib hydrochloride (NH) were studied. The spray drying technique was successfully utilized for the amorphization of NH and was evaluated by spectroscopic techniques and differential scanning calorimetry (DSC). The ethanolic spray drying process yielded amorphous NH with a glass transition temperature (Tg) of 147 degrees C. Thermal characterization of the amorphous phase was performed by heat capacity measurements using modulated DSC (mDSC). Thermal degradation was studied by thermogravimetric analysis (TGA). The derived thermodynamic properties of the amorphous NH indicate fragile behaviour and a low crystallization tendency. NH was found to be molecularly stable up to 193 degrees C. After which, the thermal degradation displayed two phases. The values of the thermal degradation parameters were estimated using the Ozawa-Flynn-Wall and Friedman non-isothermal, model-free, isoconversional methods The results indicate the two phases to be single-step reactions. The examination of the physical stability of amorphous NH during storage and at elevated temperatures showed stability at 180 degrees C for at least 5h and at 20-25 degrees C/60% RH for at least 6 months. During these periods, no crystallization was observed. This study is the first to report the thermal characteristics of NH. Additionally, it is also the first to describe the full thermal analysis of a spray-dried amorphous drug. The thermal data may be used in the projection of future production processes and storage conditions of amorphous NH. PMID- 29040936 TI - Chemical profiling and quantification of Dan-Deng-Tong-Nao-capsule using ultra high performance liquid chromatography coupled with high resolution hybrid quadruple-orbitrap mass spectrometry. AB - Dan-Deng-Tong-Nao capsule (DDTN) was a traditional Chinese medicine (TCM) formula, and has been widely used for the treatment of stroke clinically which caused by blood stasis. However, the bioactive substances and mechanism are unclear because of the complex compositions in DDTN. In this research, An ultra high-performance liquid chromatography (UHPLC) coupled with hybrid quadruple orbitrap mass spectrometry (Q-Orbitrap MS) method was utilized to identify the chemical constituents of DDTN. In total, 102 compounds including diterpenes, lactones, flavonoids, and phenolic acids were identified by the accurate masses and fragmentation pathways, and 18 of them were unambiguously determined by comparison of reference standards. Besides, 12 representative compounds were simultaneously quantification analyzed and successfully applified for detecting in 9 batches of DDTN samples by UHPLC-Q-Orbitrap MS in parallel reaction monitoring (PRM) mode. The proposed approach was validated to be satisfied in terms of linearity (0.9954-0.9999), LOD (0.771ng/mL), LOQ (2.568ng/mL), intra-day precision ( <2.68%), inter-day precision ( <4.52%), repeatability ( <2.96%), stability ( <3.21%), and recovery (94.6-105.5%). The results indicate that the method of combining UHPLC with Q-Orbitrap MS is practical and efficient for the chemical clarification in DDTN, and has great potential for the integrating quality control of other traditional Chinese medicines. PMID- 29040937 TI - A sensitive HPLC-MS method for simultaneous determination of thirteen components in rat plasma and its application to pharmacokinetic study of Tanreqing injection. AB - A rapid, sensitive and selective method based on high-performance liquid chromatography coupled with Q-Exactive mass spectrometry was developed and validated for simultaneous quantification of thirteen components in rat plasma, including chlorogenic acid, 5-caffeoylquinic acid, 4-caffeoylquinic acid, luteoloside, isochlorogenic acid A, B and C, scutellarin, baicalin, wogonin, baicalein, phillyrin and forsythoside A. After precipitating proteins from the plasma samples with methanol, chromatographic separation of the thirteen components was achieved by using an XBridgeTM C18 column (2.1mm*150mm, 5MUm) with the mobile phase consisting of methanol and 0.1% formic acid in water at a flow rate of 0.3mL/min. High-resolution MS quantification was adopted with detection on a Q-Exactive mass spectrometer in full-scan mode, and the results were obtained using a mass extraction window of 10ppm at a mass resolution of 70, 000. All the calibration curves exhibited good linearity (r2>0.991) over the measured ranges. The lower limit of quantitation (LLOQ) was in the range of 1.05 8.13ng/mL. The intra- and inter-day precision (RSD) was less than 11.70% and the accuracy (RE) ranged from -5.58% to 12.29%. No significant matrix effect was observed and the extraction recoveries of all the analytes were more than 79.36%. The developed method was applied to a pharmacokinetic study of the thirteen ingredients in rats after intravenous administration of Tanreqing at three doses of 3, 6 and 12mL/kg. The results indicated that 8 of the 13 components, isochlorogenic acid A, B and C, chlorogenic acid, baicalin, wogonin, luteoloside and forsythoside A, had linear pharmacokinetic properties in the tested dosage range. PMID- 29040938 TI - Age estimation using Olze's method in an adult Brazilian population. AB - OBJECTIVES: Age estimation is important to set an anthropological profile in human remains, as well as in legal issues where the suspect or victim doesn't have documents that prove the real age. The age estimation, in adults, is a challenge, and it can be analyzed through some dental stages. This study aimed to test Olze's method in a Brazilian sample composed by adults, aged between 20 and 70 years old, both sex. METHODS: For experiments, 306 orthopantomography from Brazilian individuals between 20 and 70 years were selected. The dental involution through four different dental parameters were classified and the correlation between chronological age and the estimated age was examined by means of a multiple regression analysis. RESULTS: The results showed that up to 41 years old, the correlation between real age and the interval obtained was considered strongly positive (R = 0.8-1), and the percentage of matching was 78.78% for men and 71.21% for women. From 42 years old up, the correlation between real age and the estimation was considered null (R = 0) for both sex, and the percentage of matching was 17.24% for men and 6.89% for women. CONCLUSION: It could be concluded that the method is effective for age estimation up to 41 years old, but has limitations to be used over this age in Brazilian people. PMID- 29040939 TI - A biomimetic theranostic O2-meter for cancer targeted photodynamic therapy and phosphorescence imaging. AB - In this report, a biomimetic theranostic oxygen (O2)-meter (cancer cell membrane@Pt(II) porphyrinic-metal organic framework, designated as mPPt) was constructed for cancer targeted and phosphorescence image-guided photodynamic therapy (PDT). mPPt presents high photosensitizers (PSs) loading and evitable self-quenching behaviors for favorable biological O2 sensing and PDT. Besides, endowed by the surface functionalization of cancer cell membrane, the homotypic targeting and immune escape abilities of mPPt could dramatically enhance its cancer targeting ability. Importantly, the O2-dependent phosphorescence responsibility of mPPt could be employed to pre-evaluate the real time O2 level in situ and guide the PDT under light irradiation. A significant anticancer effect is observed after intravenous injection of mPPt and subsequent treatment with PDT with no obvious side effects. As a versatile platform for cell imaging, O2 fluctuation monitoring as well as PDT, this biomimetic O2-meter exhibits great potential for biological analysis and personalized cancer theranostics. PMID- 29040940 TI - Risk assessment and chemical fractionation of selected elements in surface sediments from Lake Qarun, Egypt using modified BCR technique. AB - In this study, spatial distribution and chemical fractionation were conducted to appraise the overall classification of Al, B, Cd, Cr, and Pb as well as their ecological risks in Lake Qarun sediments. Also, the other chemical components (CaCO3, TOC, SO42-, SiO32-, PO43-, F, Ca, and Mg) that represented the chemical composition of the sediments were determined. Modified BCR sequential extraction technique was used to evaluate the four (acid soluble, reducible, oxidizable and residual) fractions of the surface sediments. The association of Cd was found the highest with acid-soluble fraction (12.16-77.42%), while, Al (89.92-96.83%), B (42.32-93.93%), Cr (86.35-97.42%) and Pb (31.98-86.26%) were reside in residual phase. The degree of surface sediment contamination was computed by risk assessment code (RAC), individual contamination factor (ICF) and Global contamination factor (GCF). Risk assessment code classification showed that the relative amounts of easily dissolved phase of the investigated elements in the sediments are in the order of: Cd > Pb > B > Cr > Al. As a result, Cd had the highest risk to Lake Qarun. This study is a first approach of chemical fractionation of Al, B, Cd, Cr, and Pb in one of the most ecologically important Protectorates declared in the framework of Law 102 of year 1983. Information of this study constitutes a baseline of elements fractionation in Lake Qarun sediments and should be used as a reference for future studies on the changes of labile and residual elements fractions over time. PMID- 29040941 TI - Influence of arbuscular mycorrhizal fungi on antimony phyto-uptake and compartmentation in vegetables cultivated in urban gardens. AB - : 1. CONTEXT: Urban areas are often contaminated with various forms of persistent metal (loid) and emerging contaminants such as antimony (Sb). Thus, in the context of urban agriculture where sustainable practices such as biofertilizers application (arbuscular mycorrhizal fungi, AMF) could improve nutrient transfer from the soil to the vegetables, the effect of AMF on metal (loid) mobility and human bioaccessibility is still poorly known. 2. METHODS: The role of AMF in Sb uptake by lettuce and carrot grown in artificial substrate spiked with different Sb chemical species was investigated. Plants were grown under hydroponic conditions and half of the treatments received a concentrated spore solution to obtain mycorrhized and non-mycorrhized plants. Three weeks before harvest, plants were exposed to 10 mg.L-1 of either Sb2O3 or KSbO-tartrate (KSb). 3. RESULTS: The presence of AMF significantly increased its accumulation in carrots (all organs) with higher accumulation in roots. In lettuce, accumulation appeared to be dependent on the Sb chemical species. Moreover, it was observed for the first time that AMF changed the human bioaccessible fraction of Sb in edible organs. 4. IMPLICATIONS: The present results highlight a possible risk of Sb transfer from soil to edible plants cultivated in soil naturally containing AMF propagules, or when AMF are added as biofertilizers. After validating the influence of soil environment and AMF on Sb behavior in the field, these results should be considered in health risk assessments. PMID- 29040942 TI - Effects of different factors on photodefluorination of perfluorinated compounds by hydrated electrons in organo-montmorillonite system. AB - Perfluorinated compounds (PFCs) are considered as the most recalcitrant organic contaminants. Our previous research has shown that PFCs can be completely defluorinated in the UV/organoclay/3-indole acetic acid system, however, the factors that could affect the degradation of PFCs, are still not clear. In this study, we further investigated the effect of different indole derivatives and organo-modified montmorillonite on the degradation of perfluooctanoic acid (PFOA). Based on multiple linear regression analysis, our results clearly indicate that hydrated electron yields of indole derivatives, adsorption of PFOA and indole derivatives on organo-montmorillonite contributed independently to the degradation of PFOA. In addition, the results also show that the presence of humic substance (even at 10 mg C L-1) would not significantly suppress the degradation process due to the strong adsorption of humic substance on the organo montmorillonite surface. This study would provide more information to design an efficient and environment-friendly system for degradation of PFCs, and this technique will have great potential for treatment of persistent contaminants under mild reaction conditions. PMID- 29040943 TI - Liquid chromatography-tandem mass spectrometry direct injection analysis of organophosphorus flame retardants in Ontario surface water and wastewater effluent. AB - Organophosphorus flame retardants (OPFRs) started to be used in plastics, electronics and furnishings back in the 1960s and became popular again last decade. They are now widely present in the environment and regarded as "new" emerging organic pollutants. An effective liquid chromatography-tandem mass spectrometry (LC-MS/MS) direct injection analysis (DIA) method was developed to monitor OPFR levels in aquatic environment. The removal of sample extraction and concentration steps not only improved operation efficiency, but also reduced the potential contamination commonly observed during the sample preparation process before. Positive background signals from the analytical instrument were eliminated by employing a "trap" column in front of the sample injector while an ACE C18 and an ACE C18-PFP column were compared for the separation of OPFRs. Nineteen OPFR related compounds were evaluated and rapid signal drops were observed for seven of them including TOTP, TMTP, TPTP, TEHP, T35DMPP, T2iPPP and EHDP, due to their low water solubility. The other twelve compounds, TMP, TEP, TPrP, TiPP, TBP, TCEP, TCPP, TDCPP, TPP, TBEP, BDCP and BEHP, were included for the measurement of OPFRs in drinking water, surface water, ground water and wastewater effluent samples. The instrumental detection limits of these twelve OPFRs at signal-to-noise >=3 were in the 1.5-30 ng/L range. The method was applied for the determination of OPFRs in surface water and wastewater samples in Ontario, Canada, and BEHP, TBEP, TBP, TCEP, TCPP, TDCPP, and TEP were commonly detected. PMID- 29040944 TI - Inhaled glucocorticoid treatment prevents the response of CD8+ T cells in a mouse model of allergic asthma and causes their depletion outside the respiratory system. AB - The principal objective of this research has been to determine the safety of inhaled glucocorticoids (GCs) in respect of their effect on CD8+ T cells within respiratory and extra-respiratory tissues, and to compare it with systemic GC treatment. Another purpose has been to identify whether inhaled and systemic GCs affect the CD8+ T cell response in the mediastinal lymph nodes (MLNs) and lungs in a mouse model of ovalbumin (OVA)-induced asthma. Ciclesonide and methylprednisolone were used as a model for inhaled and systemic GCs, respectively. The CD8+ T cell response was observed in untreated OVA-immunized mice, manifesting itself by the proliferation of these cells and their recruitment into the lower respiratory tract. Inhaled and systemic GC treatment fully prevented this response. This suggests that one of the elements contributing to the anti-asthmatic efficacy of inhaled and systemic GCs could be the inhibition of the effector CD8+ T cell response which accompanies the disease. The anti-asthmatic effect of GCs was rather not mediated through the generation or/and increased recruitment of Foxp3+CD25+CD8+ regulatory T cells into the MLNs and lungs. Inhaled and systemic GCs produced comparable depletions of normal CD8+ T cells in the MLNs, the head and neck lymph nodes and in peripheral blood, and this effect, at least to some extent, resulted from the proapoptotic action of GCs towards these cells. These results suggest that inhaled GC therapy might not be safer at all than treatment with systemic GCs in respect of the undesirable effects on CD8+ T cells residing within and outside the respiratory tract. PMID- 29040945 TI - Quercetin protects mouse liver against triptolide-induced hepatic injury by restoring Th17/Treg balance through Tim-3 and TLR4-MyD88-NF-kappaB pathway. AB - Triptolide (TP) is a diterpene triepoxide with various biological activities, but its clinical applications have been limited by potential hepatotoxicity, which can be attributed to T helper 17 (Th17)/T regulatory (Treg) cell imbalance. Quercetin (QE), a natural flavonoid, has been reported to have many benefits and medicinal properties, including hepatoprotective activity against TP-induced liver injury. However, the hepatoprotection mechanisms have not been clarified. The present study was designed to explore the protective effect and the mechanism of QE against TP-induced liver injury. Treatment with QE (20, 50 and 80mg/kg) prior to TP administration restored TP-induced alterations in a certain dose range indicating that QE was able to inhibit TP-induced liver injury. One mechanism underlying this effect was the shifting balance in Th17 and Treg cells from Th17 dominance to Treg dominance. Furthermore, QE markedly decreased the expression level of the Th17-related pro-inflammatory cytokines interleukin (IL) 17 and IL-6, as well as the Th17 transcription factor retinoid-related orphan receptor-gammat (ROR-gammat). TP induced downregulation in the expression of anti inflammatory cytokine IL-10, but the expression of Treg transcription factor forkhead/winged-helix family transcriptional repressor p3 (FoxP3) was restored by QE. In the process of exploring the possible hepatoprotective mechanisms of QE, we found that QE significantly reduced both protein and mRNA expression of Toll like receptor 4 (TLR4), which in turn not only inactivated myeloid differentiation primary response gene 88 (MYD88), nuclear factor kappa B (NF kappaB) and related inflammatory cytokines IL-6 and IL-17, but also simultaneously increased the levels of T-cell immunoglobulin and mucin domain containing protein 3 (Tim-3). Furthermore, blocking of TLR4 enhanced the effect of QE in regulating the Th17/Treg imbalance. In summary, this report has demonstrated for the first time that the protection afforded by QE against TP induced liver injury was associated with a shift in the balance of Th17 and Treg cells to Treg dominance, which was regulated by Tim-3 and TLR4-MyD88-NF-kappaB signaling pathway. PMID- 29040946 TI - Neuropsychological predictors of response to cognitive behavioral therapy for posttraumatic stress disorder in persons with severe mental illness. AB - This study examined whether cognitive functioning was related to treatment outcomes in persons with severe mental illness who received a cognitive behavioral therapy (CBT) program for co-occurring posttraumatic stress disorder (PTSD). The study sample was drawn from a larger controlled trial of 108 persons with severe mental illness and PTSD comparing the effects of CBT with treatment as usual on PTSD and related outcomes, with assessments conducted at baseline, post-treatment, and 3- and 6-month follow-ups. Among the 54 persons in CBT, 49 were administered a neuropsychological battery at baseline and 40 were exposed to the CBT program. Statistical analyses of these 40 participants were conducted to evaluate whether cognitive functioning was related to participation in the CBT program, completion of homework assignments, and improvements in PTSD, and other outcomes. Cognitive functioning was not related to participation in CBT or completion of homework. Lower cognitive functioning predicted less learning of information about PTSD at post-treatment and follow-up, but not less clinical benefit from CBT in PTSD diagnosis or symptoms, other symptoms, or health. The results suggest that cognitive impairment does not attenuate response to the CBT for PTSD program in persons with severe mental illness. Clinical Trials.gov Identifier: NCT00053690. PMID- 29040947 TI - A 6-week, multicenter, double-blind, double-dummy, chlorpromazine-controlled non inferiorityrandomized phase iiitrial to evaluate the efficacy and safety of quetiapine fumarate (SEROQUEL) extended-release (XR) in the treatment of patients with schizophrenia and acute episodes. AB - This study aimed to evaluate the efficacy and safety of quetiapine fumarate extended-release (XR) in the treatment of Chinese patients with acute schizophrenia. Multicenter, double-blind, double-dummy, active-controlled non inferiority randomized study in Chinese patients (n = 388) with schizophrenia randomly assigned to quetiapine XR or chlorpromazine for 6 weeks. Primary outcome was the change from baseline in Positive and Negative Syndrome Scale (PANSS) total score at the end of treatment. Safety objectives included adverse event (AE) monitoring, laboratory test results, and electrocardiograms. Changes in PANSS total score were -33.4 for quetiapine XR and -35.9 for chlorpromazine (P > 0.05). Least squares mean changes were: positive subscale, -9.9 +/- 0.53 and 11.1 +/- 0.51; negative subscale, -5.9 +/- 0.50 and -6.7 +/- 0.48; general psychopathology subscale, -12.9 +/- 0.74 and -13.9 +/- 0.71; aggression and hostility cluster scores, -4.8 +/- 0.33 and -5.4 +/- 0.32; and depression cluster scores, -1.8 +/- 0.18 and -1.7 +/- 0.18, for quetiapine XR and chlorpromazine, respectively. For quetiapine XR, AEs were constipation, dizziness, insomnia, and agitation, and nine patients (4.6%) discontinued due to AEs. For chlorpromazine, AEs were extrapyramidal symptoms, constipation, insomnia, dizziness, and agitation, and 17 patients (8.9%) discontinued due to AEs; two patients reported serious AEs. Quetiapine XR monotherapy was not inferior to chlorpromazine for treating acute schizophrenia in Chinese patients and was well tolerated. PMID- 29040948 TI - A prospective cohort study of community functioning among psychiatric outpatients. AB - The present study analyzed the community functioning among Chinese people with common mental disorders and their relationships with different factors under the framework of Model of Human Occupation. The research team followed up a stratified random sample of 238 patients in three public psychiatric specialist outpatient clinics in Hong Kong in one year. The patients completed assessments at baseline and 12-month follow-up in four areas of community functioning (i.e., self-care, independent living skills, social skills, and work skills), self esteem, self-efficacy, physical functioning, behavioral regulation, mental states, family expressed emotion, and perceived social stigma. The data showed that after 12 months, the patients had positive changes in self-care, work skills, and behavioral regulation. Those patients who had higher levels of self esteem at baseline and reduced their negative reactions to stigma were more likely to improve social skills, while those patients who perceived less discrimination at baseline and enhanced their self-esteem would have a higher likelihood of making improvement in work skills. The findings implied that the rehabilitation services for people with common mental disorders might target on the enhancement of self-esteem and reduction of discrimination experience to facilitate their improvement in social skills and work skills. PMID- 29040949 TI - Phenomenological characteristics of recovered memory in nonclinical individuals. AB - A central hypothesis of recovered memory is that the source of the memory may be misattributed, and the memory of an imagined event may be mistaken as the memory of the perceived event that was not remembered. The judgment of memory source depends upon phenomenological characteristics. Thus, the present study investigated characteristics of recovered memory. To exclude potential confounding effects of traumatic stress and acute mental illness, data on recovered memories of diverse valences in a nonclinical sample were collected. Self-report scales including a measure of memory characteristics were used to evaluate recovered memories and age-matched autobiographical memories that had been continuously remembered. The results showed that recovered memory was of lower clarity and contained less detailed sensory, contextual, and temporal information; additionally, it was associated with fewer thoughts and lower intensity of feelings. Participants also felt less confident regarding the veracity of recovered memory in comparison with continuous memory. In contrast to recovered trauma memory reported by clinical clients, vivid sensory details and intense affect did not characterize recovered memory in nonclinical individuals. The reduction in perceptual and contextual information, as well as cognitive operations, may increase the difficulty of judging the source of recovered memory. PMID- 29040950 TI - Green spaces are not all the same for the provision of air purification and climate regulation services: The case of urban parks. AB - The growing human population concentrated in urban areas lead to the increase of road traffic and artificial areas, consequently enhancing air pollution and urban heat island effects, among others. These environmental changes affect citizen's health, causing a high number of premature deaths, with considerable social and economic costs. Nature-based solutions are essential to ameliorate those impacts in urban areas. While the mere presence of urban green spaces is pointed as an overarching solution, the relative importance of specific vegetation structure, composition and management to improve the ecosystem services of air purification and climate regulation are overlooked. This avoids the establishment of optimized planning and management procedures for urban green spaces with high spatial resolution and detail. Our aim was to understand the relative contribution of vegetation structure, composition and management for the provision of ecosystem services of air purification and climate regulation in urban green spaces, in particular the case of urban parks. This work was done in a large urban park with different types of vegetation surrounded by urban areas. As indicators of microclimatic effects and of air pollution levels we selected different metrics: lichen diversity and pollutants accumulation in lichens. Among lichen diversity, functional traits related to nutrient and water requirements were used as surrogates of the capacity of vegetation to filter air pollution and to regulate climate, and provide air purification and climate regulation ecosystem services, respectively. This was also obtained with very high spatial resolution which allows detailed spatial planning for optimization of ecosystem services. We found that vegetation type characterized by a more complex structure (trees, shrubs and herbaceous layers) and by the absence of management (pruning, irrigation and fertilization) had a higher capacity to provide the ecosystems services of air purification and climate regulation. By contrast, lawns, which have a less complex structure and are highly managed, were associated to a lower capacity to provide these services. Tree plantations showed an intermediate effect between the other two types of vegetation. Thus, vegetation structure, composition and management are important to optimize green spaces capacity to purify air and regulate climate. Taking this into account green spaces can be managed at high spatial resolutions to optimize these ecosystem services in urban areas and contribute to improve human well-being. PMID- 29040951 TI - Perfluoroalkyl substances, bone density, and cardio-metabolic risk factors in obese 8-12 year old children: A pilot study. AB - BACKGROUND AND OBJECTIVE: Perfluoroalkyl substances (PFASs), including perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), and perfluorononanoic acid (PFNA), have been associated with adverse bone, and metabolic changes in adults. However association of PFASs with bone health in children is understudied. Considering their role as endocrine disruptors, we examined relationships of four PFASs with bone health in children. METHODS: In a cross sectional pilot study, 48 obese children aged 8-12 years were enrolled from Dayton's Children Hospital, Ohio. Anthropometric, clinical and biochemical assessments of serum were completed. Serum PFASs were measured by UPLC-ESI-MS/MS. In a subset of 23 children, bone health parameters were measured using calcaneal quantitative ultrasound (QUS). RESULTS: While PFASs exposure was associated with a consistent negative relationship with bone health parameters, among four PFASs tested, only PFNA showed a significant negative relationship with bone parameter (beta [95% CI], = 72.7 [- 126.0, - 19.6], p = .010). PFNA was also associated with raised systolic blood pressure (p = .008), low density lipoprotein cholesterol (LDL-C; p < .001), and total cholesterol (TC; p = .014). In addition, both PFOA and PFOS predicted elevation in LDL-C, and PFOA predicted increased TC, as well. In this analysis, PFASs were not strongly related to thyroid hormones, 25-hydroxy vitamin D, liver enzymes, or glucose homeostasis. CONCLUSION: PFASs exposure in obese children may play a role in adverse skeletal and cardiovascular risk profiles. PMID- 29040952 TI - Design, synthesis, kinetic mechanism and molecular docking studies of novel 1 pentanoyl-3-arylthioureas as inhibitors of mushroom tyrosinase and free radical scavengers. AB - A series of novel 1-pentanoyl-3-arylthioureas was designed as new mushroom tyrosinase inhibitors and free radical scavengers. The title compounds were obtained in excellent yield and characterized by FTIR, 1H NMR, 13C NMR and X-ray crystallography in case of compound (4a). The inhibitory effects on mushroom tyrosinase and DPPH were evaluated and it was observed that 1-Pentanoyl-3-(4 methoxyphenyl) thiourea (4f) showed tyrosinase inhibitory activity (IC50 1.568 +/ 0.01 mM) comparable to Kojic acid (IC50 16.051 +/- 1.27 mM). Interestingly compound 4f exhibited higher antioxidant potential compared to other derivatives. The docking studies of synthesized 1-Pentanoyl-3-arylthioureas analogues were also carried out against tyrosinase protein (PDBID 2ZMX) to compare the binding affinities with IC50 values. The predicted binding affinities are in good agreement with the IC50 values as compound (4f) showed highest binding affinity ( 7.50 kcal/mol) compared to others derivatives. The kinetic mechanism analyzed by Line-weavere Burk plots exhibited that compound (4f) inhibit the enzyme inhibits the tyrosinase non-competitively to form an enzyme inhibitor complex. The inhibition constants Ki calculated from Dixon plots for compound (4f) is 1.10 MUM. It was also found from kinetic analysis that derivative 4f irreversible enzyme inhibitor complex. It is proposed on the basis of our investigation that title compound (4f) may serve as lead structure for the design of more potent tyrosinase inhibitors. PMID- 29040953 TI - Design, synthesis and biological evaluation of novel alpha-hederagenin derivatives with anticancer activity. AB - In an attempt to arrive at a more potent cytotoxic agent than the parent compound alpha-hederagenin (H), 24 alpha-hederagenin derivatives (5-8, 11-24, 27-28, 31 32, and 35-36) were synthesized in a concise and efficient strategy and screened for in vitro cytotoxicity against the human cancer cell lines MKN45 and KB. Among these compounds, the polyamine derivative 15 exhibited more potency than the parent compound with IC50 values in the range of 4.22 MUM-8.05 MUM. Compound 15 increased Bax/bcl-2 ratio that disrupted the mitochondrial potential and induced apoptosis. Therefore, the present studies highlight the importance of polyamine derivatives of alpha-hederagenin in the discovery and development of novel anticancer agents. PMID- 29040954 TI - Design, synthesis and biological evaluation of substituted aminopyridazin-3(2H) ones as G0/G1-phase arresting agents with apoptosis-inducing activities. AB - A series of aminopyridazin-3(2H)-one derivatives has been designed and synthesized. Their antiproliferative activities were evaluated against three human cancer cell lines (SH-SY5Y human neuroblastoma, K562 human myelogenous leukemia and AGS gastric cancer cell lines) using the MTT assay. The preliminary activity test displayed that compound 8a exhibited comparable activities against all test cells with the positive control fluorouracil. Meanwhile compounds 8b, 8e and 9c-e displayed selective antiproliferative activities for SH-SY5Y cells. Furthermore, compounds 8a-b with low-micromole GI50 value for SH-SY5Y cells induced apoptosis with cell cycle arrest at G0/G1 phase in SH-SY5Y cells in a dose-dependent manner. PMID- 29040955 TI - Protective role of epigallocatechin-3-gallate on arsenic induced testicular toxicity in Swiss albino mice. AB - Arsenic, often referred to as the king of poisons is carcinogenic in humans and animals. It affects multiorgan systems including reproduction. The present study was undertaken to explore the protective role of green tea compound, epigallocatechin-3-gallate (EGCG) on arsenic induced testicular toxicity in Swiss albino mice. Thirty two adult male mice were randomly assigned to four groups (n=8). Group I served as control without test chemical. The group II received arsenic (200ppm) through drinking water, group III received only EGCG (20mg/kgb.wt., intraperitoneally, alternate days) and group IV was administered arsenic+EGCG for 40days. Factorial experimental design was employed to assess the treatment effect. The EGCG restored arsenic induced decrements in epididymal sperm concentration, kinematic attributes (total motility, rapid, progressive motile, fast progressive, VSL, VAP, VCL, BCF, LIN, WOB, STR and Type A), structutal membrane integrity, functional membrane integrity and mitochondrial membrane potential. As evidenced by the histoarchitectural studies, the EGCG reversed the deleterious effects of arsenic on testicular malondialdehyde (p<0.05) levels, reduced glutathione, antioxidative enzymes and spermatogenesis. Overall, the results suggest that EGCG reduces the testicular oxidative stress induced by arsenic poisoning and thereby protect the reproductive system. PMID- 29040956 TI - Antihyperlipidemic effect of Pistacia khinjuk. AB - BACKGROUND: Hyperlipidemia is a metabolic disorder that is caused by high levels of triglycerides and cholesterol in blood. Using of plants for the treatment of various ailments is a traditional practice in developing countries. The main objective of the study is to analyse the nutritional composition of Pistacia khinjuk and to assess its anti-hyperlipidemic activity. MATERIALS AND METHODS: In the present study, the ethanolic extract of Pistacia khinjuk leaves was evaluated for antihyperlipidemic activity. 40 adult albino rats were divided into five groups. Hyperlipidemia was induced using high fat diet for 60days. Pistacia khinjuk extract of 150mg/kg body weight and 300mg/kg of body weight was administered to the rats for 28days. Proximate analysis of Pistacia khinjuk was also performed. RESULTS: Proximate analysis of Pistacia khinjuk leaves showed 6.8% ash content, 12.8% crude fiber and only 6.85% fat content. Findings of present study revealed that both doses of Pistacia khinjuk extract improved the serum lipid profile in albino rats by reducing total lipids, total cholesterol, triglycerides and low density lipoprotein, and increasing high density lipoprotein levels in Pistacia khinjuk treated groups. Body weight findings showed significant increase in body weight of all groups from zero day to 60th day. But before sacrifice, there was a decrease in hyperlipidemic and high dose Pistacia khinjuk while increase in control and low dose Pistacia khinjuk group respectively. CONCLUSION: From the results of the present study, it is concluded that Pistacia khinjuk extract has curative effect against hyperlipidemia. PMID- 29040957 TI - Molecular docking and antiamnesic effects of nepitrin isolated from Rosmarinus officinalis on scopolamine-induced memory impairment in mice. AB - Rosmarinus officinalis has long been known as the herb of remembrance. The present study was undertaken to investigate the anti-amnesic effects of nepitrin isolated from Rosmarinus officinalis using in-vivo models of Y-maze and novel object recognition test (NORT) along with in vitro antioxidant and acetylcholinesterase (AChE) and buterylcholinesterase (BuChE) inhibition potential. Nepitrin showed a concentration dependent inhibition of AChE and BuChE enzymes with IC50 values of 65 and 72MUg/mL, respectively and antioxidant activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2, 2'-azinobis-3 ethylbenzothiazoline-6-sulfonic acid (ABTS) with IC50 values 270 and 210MUg/mL, respectively. In mice, nepitrin reversed the amnesia induced by scopolamine as indicated by a dose-dependent increase in spontaneous alternation performance in the Y-maze task (p <0.05 versus scopolamine) and increase in the discrimination index in the novel object recognition test (NORT) comparable to the standard drug donepezil 2mg/kg. Molecular docking studies were performed and the GlideScore of nepitrin was consistent with its experimental AChE inhibitory activities. Nepitrin occupied the same binding site forming similar interactions to those formed by donepezil in the crystal structure. Thus, nepitrin could provide a lead for the development of therapeutic agent useful in cognition and memory disorders such as Alzheimer's disease. PMID- 29040958 TI - The potential protective role of Akropower against Atrazine- induced humoral immunotoxicity in rabbits. AB - Introduction to the herbicide Atrazine (ATR) can bring about immunotoxicity, aside from other unfavorable results for the creature and human wellbeing. We went for clarifying the genotoxic mechanisms required in humoral immunotoxicity of Gesaprim(r) (ATR) and their constriction by Akropwer. Forty rabbits (1.5kg+/ 20%) were utilized and appointed into 4 equal groups. group 1: control; group 2: Received Atrazine at 1/10 LD50 via food; group 3: Received Akropwer at 1ml/1l/day by means of drinking water; group 4: Received both Atrazine and Akropwer associatively by the same said dosage and course. Atrazine and Akropower exposure were accomplished for 60days. The genotoxic mechanisms of Atrazine- induced humoral immunotoxicity were explained by increased serum total protein and albumin levels, decreased RHDV antibody titer only after four weeks of vaccination and increased level of spleen Fas and Caspase-III genes expression in Atrazine-exposed rabbits. Marked splenocytes apoptosis were detected in the immunohistochemical examination by caspase-III technique and TUNEL assay. Akropower attenuated ATR-induced apoptosis through down-regulation of Fas and Caspase-III genes expression and suppression of their signaling pathway. In conclusion, induction of apoptosis by overexpression of Fas and Caspase-III genes gives a new insight into the mechanism of ATR immunotoxicity. The protective part of Akropower, on the other hand, was characterized by attenuation of Fas and Caspase-III genes mediated apoptosis. PMID- 29040959 TI - Marantodes pumilum (Kacip fatimah) enhances in-vitro glucose uptake in 3T3-L1 adipocyte cells and reduces pancreatic complications in streptozotocin nicotinamide induced male diabetic rats. AB - : Marontades pumilum is claimed to have beneficial effects in the treatment of diabetes mellitus (DM), however the underlying mechanisms were not fully identified. In this study, we hypothesized that M. pumilum could help to enhance cellular glucose uptake and reduces pancreatic complications, which contributed towards its beneficial effects in DM. METHODS: Two parameters were measured (i) rate of glucose uptake by 3T3-L1 adipocyte cells in-vitro (ii) degree of pancreatic destruction in streptozotocin-nicotinamide induced male diabetic rats receiving M. pumilum aqueous extract (M.P) (250 and 500mg/kg/day) as reflected by levels of pancreatic oxidative stress, inflammation and apoptosis. In the meantime, phyto-chemical compounds in M.P were also identified by using LC-MS. RESULTS: M.P was found able to enhance glucose uptake by 3T3-L1 adipocyte cells in-vitro while its administration to the male diabetic rats causes decreased in the fasting blood glucose (FBG), glycated haemoglobin (HbA1c), total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL) levels but causes increased in insulin and high-density lipoprotein (HDL) levels, to near normal. Levels of oxidative stress in the pancreas as reflected by levels of lipid peroxidation product (LPO) decreased while levels of anti-oxidantive enzymes (SOD, CAT and GPx) in pancreas increased. Additionally, levels of inflammation as reflected by NF-kappaB p65, Ikkbeta and TNF-alpha levels decreased while apoptosis levels as reflected by caspase-9 and Bax levels decreased. Anti apoptosis marker, Bcl-2 levels in pancreas increased. CONCLUSIONS: The ability of M.P to enhance glucose uptake and reduces pancreatic complications could account for its beneficial effects in treating DM. PMID- 29040960 TI - A novel S-sulfhydrated human serum albumin preparation suppresses melanin synthesis. AB - Products of ultraviolet (UV) irradiation such as reactive oxygen species (ROS) and nitric oxide (NO) stimulate melanin synthesis. Reactive sulfur species (RSS) have been shown to have strong ROS and NO scavenging effects. However, the instability and low retention of RSS limit their use as inhibitors of melanin synthesis. The free thiol at Cys34 on human serum albumin (HSA) is highly stable, has a long retention and possess a high reactivity for RSS. We report herein on the development of an HSA based RSS delivery system. Sulfane sulfur derivatives released from sodium polysulfides (Na2Sn) react readily with HSA. An assay for estimating the elimination of sulfide from polysulfide showed that almost all of the sulfur released from Na2Sn bound to HSA. The Na2Sn-treated HSA was found to efficiently scavenge ROS and NO produced from chemical reagents. The Na2Sn treated HSA was also found to inhibit melanin synthesis in B16 melanoma cells and this inhibition was independent of the number of added sulfur atoms. In B16 melanoma cells, the Na2Sn-treated HSA also inhibited the levels of ROS and NO induced by UV radiation. Finally, the Na2Sn-treated HSA inhibited melanin synthesis from L-DOPA and mushroom tyrosinase and suppressed the extent of aggregation of melanin pigments. These data suggest that Na2Sn-treated HSA inhibits tyrosinase activity for melanin synthesis via two pathways; by directly inhibiting ROS signaling and by scavenging NO. These findings indicate that Na2Sn treated HSA has potential to be an attractive and effective candidate for use as a skin whitening agent. PMID- 29040961 TI - Effect of double-layer application on bond quality of adhesive systems. AB - OBJECTIVES: The aim of this study was to determine the effect of double-layer application of universal adhesives on the bond quality and compare to other adhesive systems. METHODS: Two universal adhesives used were in this study: Scotchbond Universal (SU), [3M ESPE] and Prime & Bond elect (PE), [Dentsply Caulk]. The conventional single-step self-etch adhesives G-aenial Bond (GB), [GC Corporation.] and BeautiBond (BB), [Shofu Inc.], and a two-step self-etch adhesive, Optibond XTR (OX), [Kerr Corporation], were used as comparison adhesives. Shear bond strengths (SBS) and shear fatigue strengths (SFS) to human enamel and dentin were measured in single application mode and double application mode. For each test condition, 15 specimens were prepared for SBS testing and 30 specimens for SFS testing. RESULTS: Enamel and dentin SBS of the universal adhesives in the double application mode were significantly higher than those of the single application mode. In addition, the universal adhesives in the double application mode had significantly higher dentin SFS values than those of the single application mode. The two-step self-etch adhesive OX tended to have lower bond strengths in the double application mode, regardless of the test method or adherent substrate. CONCLUSION: The double application mode is effective in enhancing SBS and SFS of universal adhesives, but not conventional two-step self etch adhesives. SIGNIFICANCE: These results suggest that, although the double application mode may enhance the bonding quality of a universal adhesive, it may be counter-productive for two-step self-etch adhesives in clinical use. PMID- 29040962 TI - Interactions between rGO/TNT nanocomposites and cells: Regulation of cell morphology, uptake, cytotoxicity, adhesion and migration. AB - Reduced graphene oxide/titanium dioxide nanotube (rGO/TNT) composites have superior properties, such as a large surface area, extraordinary mechanical strength, high carrier mobility, etc. However, the biosafety and biocompatibility of these composites, such as their influences on cell viability and cell functions, which are of paramount importance, are still not fully addressed. In this study, rGO/TNT nanocomposites were successfully synthesized through a modified hydrothermal treatment method. Then, the interactions between the rGO/TNT nanocomposites and Raw264.7 mouse monocyte-macrophage cells were further investigated. The results show that the rGO/TNT nanocomposites could be internalized by Raw264.7 cells and mainly gathered inside the cytoplasm. No rGO/TNT nanocomposites were observed in the nucleus. Moreover, the rGO/TNT nanocomposites exhibited low cytotoxicity toward Raw264.7 cells at a lower dose, though they may exhibit cytotoxicity to some extent at very high concentrations. In addition, the uptake of the nanocomposites influenced the cell cytoskeleton organization, while the cell adhesion and migration abilities were also impaired. PMID- 29040963 TI - New adhesive system based in metals cross-linking methacrylate. AB - This study evaluated the anti-antibiofilm potential of silver methacrylate (Ag) or di-n-butyldimethacrylatetin (Sn) in experimental adhesive systems. Ag and Sn methacrylates were incorporated at 0.5mol%, 1mol% and 2mol% in an adhesive resin. The anti-antibiofilm potential, degree of conversion (DC), microtensile bond strength (MUTBS), water sorption/solubility (WSR/SL), bonded interfaces pattern (SEM), cytotoxicity and leaching of Ag and Sn ions were evaluated. Data were statistically analyzed considering alpha = 0.05. Only Ag at 2% affected DC and MUTBS. Ag at 1% and 2% and Sn at 1% and 2% showed anti-biofilm potential against Mutans streptococci. Ag at 1% and 2% and Sn at 2% showed a statistically significant difference to the control in WSR/SL (p < 0.05). The additions of metal methacrylate did not affect cell viability, being the adhesive resins statistically similar to controls. Leached metals of Ag were more than 100x higher than for Sn. Between the concentration tested, Ag and Sn methacrylate at 1% presented an anti-biofilm effect without altering the mechanical properties evaluated. PMID- 29040964 TI - Polymorphisms in adrenergic receptor genes in Qinchuan cattle show associations with selected carcass traits. AB - The beta-adrenergic receptors coded by the ADRB1, ADRB2 and ADRB3 genes play important roles in mediating metabolic effects, especially lipolysis, insulin resistance and energy balance. This study investigated the expression levels of these three genes in different tissues of Qinchuan cattle by real-time polymerase chain reaction (RT-PCR). Expressed levels of RNA from the ADRB2 gene were generally much higher than for ADRB1 and ADRB3. ADRB1 and ADRB2 expression levels were highest in subcutaneous fat and lower in muscle, whereas ADRB3 expression was higher in muscle tissue. Eight single nucleotide polymorphisms (SNPs) were discovered in 503 Qinchuan cattle by DNA sequencing, containing three missense mutations (g.1148G>C in ADRB1, g.1293C>T and g.1311T>C in ADRB2), four synonymous mutations (g.1054T>C, g.1122C>T and g.1143G>T in ADRB1 and g.506A>G in ADRB3), as well as one mutation in 3'untranslated region (3'UTR) (g.2799G>A in ADRB3). Interestingly, five of them were located in regions predicted to contain multiple repeats of CG nucleotides (CpG islands). Association analysis showed relationships between most of those SNPs or combined haplotypes and carcass traits of Qinchuan cattle. This study association analysis suggests that polymorphisms in these genes might be useful for selection in beef cattle breeding. PMID- 29040965 TI - Distribution of cancer mortality rates by province in South Africa. AB - INTRODUCTION: Cancer mortality rates are expected to increase in developing countries. Cancer mortality rates by province remain largely unreported in South Africa. This study described the 2014 age standardised cancer mortality rates by province in South Africa, to provide insight for strategic interventions and advocacy. METHODS: 2014 deaths data were retrieved from Statistics South Africa. Deaths from cancer were extracted using 10th International Classification of Diseases (ICD) codes for cancer (C00-C97). Adjusted 2013 mid-year population estimates were used as a standard population. All rates were calculated per 100 000 individuals. RESULTS: Nearly 38 000 (8%) of the total deaths in South Africa in 2014 were attributed to cancer. Western Cape Province had the highest age standardised cancer mortality rate in South Africa (118, 95% CI: 115-121 deaths per 100 000 individuals), followed by the Northern Cape (113, 95% CI: 107-119 per 100 000 individuals), with the lowest rate in Limpopo Province (47, 95% CI: 45-49 per 100 000). The age standardised cancer mortality rate for men (71, 95% CI: 70 72 per 100 000 individuals) was similar to women (69, 95% CI: 68-70 per 100 000). Lung cancer was a major driver of cancer death in men (13, 95% CI: 12.6-13.4 per 100 000). In women, cervical cancer was the leading cause of cancer death (13, 95% CI: 12.6-13.4 per 100 000 individuals). CONCLUSION: There is a need to further investigate the factors related to the differences in cancer mortality by province in South Africa. Raising awareness of risk factors and screening for cancer in the population along with improved access and quality of health care are also important. PMID- 29040966 TI - Natural product celastrol suppressed macrophage M1 polarization against inflammation in diet-induced obese mice via regulating Nrf2/HO-1, MAP kinase and NF-kappaB pathways. AB - Macrophage polarization is implicated in the inflammation in obesity. The aim of the present study was to examine the anti-inflammatory activities of botanical triterpene celastrol against diet-induced obesity. We treated diet-induced obese C57BL/6N male mice with celastrol (5, 7.5 mg/kg/d) for 3 weeks, and investigated macrophage M1/M2 polarization in adipose and hepatic tissues. Celastrol reduced fat accumulation and ameliorated glucose tolerance and insulin sensitivity. Celastrol down-regulated the mRNA levels of macrophage M1 biomarkers (e.g., IL-6, IL-1beta, TNF-alpha, iNOS) in cell culture and in mice. The underlying mechanisms were investigated in murine macrophage RAW264.7 cells. Our results demonstrated that celastrol might control macrophage polarization through modulating the cross talk between the following three mechanisms: 1) suppressing LPS-induced activation of MAP kinases (e.g., ERK1/2, p38, JNK) in a concentration dependent manner; 2) attenuating LPS-induced nuclear translocation of NF-kappaB p65 subunit in a time dependent manner; 3) activating Nrf2 and subsequently inducing HO-1 expression. HO-1 inhibitor SnPP diminished the inhibitory effects of celastrol on the activation of NF-kappaB pathway and the pro-inflammatory M1 macrophage polarization. Taken together, celastrol exhibited anti-obesity effects via suppressing pro-inflammatory M1 macrophage polarization. Thus, our results provide new evidence for the potential of celastrol in the treatment of obesity. PMID- 29040967 TI - Improvement and Aggravation of Spontaneous Unruptured Vertebral Artery Dissection. AB - BACKGROUND: Intracranial vertebral artery dissection (VAD) is a well-recognized cause of stroke in young and middle-aged individuals, especially in Asian populations. However, a long-term natural course remains unclear. We investigated the long-term time course of VAD using imaging findings to examine the rate and predisposing factors for improvement. METHODS: We registered 56 consecutive patients (40 males; mean age, 51.8 +/- 10.7 years) with acute spontaneous VAD and retrospectively investigated neuroimaging and clinical course within 1 month and at 3 months +/- 2 weeks, 6 months +/- 2 weeks, and 12 months +/- 2 weeks after onset to ascertain predisposing factors and time course for improvement. RESULTS: The most common presenting symptoms were headache and/or posterior neck pain, seen in 41 patients (73%). Magnetic resonance imaging showed brainstem and/or cerebellum infarction in only 32 patients (57%). Of the 56 VADs, 16 (28%) presented with pearl and string sign, 5 (9%) with pearl sign, 15 (27%) with string sign, and 20 (36%) with occlusion sign. VAD occurred on the dominant side in 20 patients and on the nondominant side in the other 36 patients. The pearl and string sign was more frequently noted on the dominant side than on the nondominant side (50 vs. 17%, p = 0.008). On the other hand, occlusion occurred more often on the nondominant side than on the dominant side (47 vs. 15%, p = 0.016). Furthermore, the pearl and string sign was more frequently seen in the improvement group (41 vs. 15%, p = 0.028), whereas the occlusion sign was evident more frequently in the nonimprovement group (21 vs. 52%, p = 0.015). Follow-up neuroimaging evaluation was performed at 1 and 3 months in 91% each, and at 6 and 12 months in 82% each. VAD aggravation was identified within 1 month after onset in 14%, while VAD improvement was seen in 14, 38, 50, and 52% at each period, mainly within 6 months after onset. Older patients and current smoking were negatively associated with VAD improvement. CONCLUSIONS: VAD improvement primarily occurs within 6 months after onset, and VAD aggravation within 1 month. It seems that older patients and current smoking are negative predictors of VAD improvement as risk factors, and as image findings, the pearl and string sign is a positive predictor and occlusion a negative predictor. PMID- 29040968 TI - Neutrophils Kill Reactive Oxygen Species-Resistant Pseudomonas aeruginosa by Sphingosine. AB - BACKGROUND/AIMS: Cystic fibrosis (CF) is dominated by chronic inflammation and infection of the lung resulting in lung destruction and early death of patients. The lungs of CF patients are characterized by a massive accumulation of neutrophils. It requires definition why these massive numbers of neutrophils fail to eliminate typical CF pathogens like Staphylococcus aureus and Pseudomonas aeruginosa (P. aeruginosa) in CF lungs. METHODS: We determined ceramide, sphingosine and reactive oxygen species (ROS) in neutrophils from wildtype and CF mice and determined the effect of sphingosine and ROS alone or in combination on killing of different P. aeruginosa strains. RESULTS: We demonstrate that wildtype neutrophils are able to kill non-mucoid and mucoid clinical P. aeruginosa strains, while neutrophils from CF mice are insufficient to kill these P. aeruginosa strains, although both types of neutrophils infected with P. aeruginosa produce comparable levels of superoxide. All three analyzed P. aeruginosa strains are resistant to reactive oxygen species. The inability of CF neutrophils to kill P. aeruginosa is caused by a marked decrease of surface sphingosine levels in CF neutrophils. Wildtype neutrophils contain much higher concentrations of surface sphingosine than CF neutrophils. Further, wildtype neutrophils, but not CF neutrophils, release sphingosine, most likely as microparticles, upon infection. Sphingosine kills P. aeruginosa in vitro at low micromolar concentrations. Reconstitution of sphingosine in CF neutrophils restores their ability to kill these pathogens, demonstrating the significance of sphingosine for bacterial killing. CONCLUSION: The data provide evidence for a new paradigm explaining how neutrophils kill ROS-resistant P. aeruginosa, i.e. by sphingosine that kills P. aeruginosa at low concentrations. This mechanism is defective in CF neutrophils. PMID- 29040969 TI - Comparison of IGH Profile Signals Using t(4;14) and IGH Break-Apart Probes by FISH in Multiple Myeloma. AB - We compared immunoglobulin heavy chain gene (IGH) signal patterns in multiple myeloma (MM) using the FGFR3-IGH and the IGH break-apart probes to facilitate their understanding and analysis. Forty-nine patients with MM were studied. FISH was performed on samples sorted with an FGFR3-IGH dual-color, dual-fusion translocation probe and an IGH dual-color break-apart rearrangement probe. The IGH deletions were found in 7 MM analyzed with the FGFR3-IGH probe and all confirmed by the IGH break-apart probe. The additional IGH signals were associated with different patterns using the IGH break-apart probe: a normal pattern in 9 cases, trisomy 14 in 3 cases, and splits of IGH in 7 cases. Fusion patterns with the FGFR3-IGH probe were observed in 13 cases. Atypical patterns were identified in 6 cases with multiple presentations of IGH: a deletion of the IGH variable segment in der(4) or in chromosome 14, loss of the IGH locus in chromosome 14, and additional copies of FGFR3-IGH fusion probes. We identified a majority of atypical IGH patterns with the t(4;14) probe, without false-negative results when FGFR3-IGH signal fusions were found. However, the extrapolation of FGFR3-IGH probe signals requires the IGH break-apart probe to obtain unequivocal interpretations. PMID- 29040970 TI - Use of Dipeptidyl-Peptidase IV Inhibitors and Bullous Pemphigoid. PMID- 29040971 TI - Characteristics and Outcomes of Vertebrobasilar Artery Dissection with Accompanied Atherosclerosis. AB - BACKGROUND: With the popularity of MRI use, vertebrobasilar artery dissection (VBD) has been found more frequently in patients with posterior circulation ischemic stroke (PCS). The relationship between VBD and atherosclerosis is unknown. The present study aimed to prove the hypothesis that PCS with pure VBD (p-VBD) and with VBD and accompanied cervical or cerebral artery atherosclerosis (a-VBD) have distinct manifestations. METHODS: Patients with VBD-related PCS who were prospectively enrolled in the Taipei Veterans General Hospital Stroke Registry between January 1, 2010 and August 31, 2014 were recruited for the present study. Patients who had (1) atherosclerotic plaques with or without stenotic flow in cervical arteries on Duplex ultrasonography or (2) focal >30% stenosis in cerebral arteries other than the dissecting region (usually in arterial bifurcations which are prone to atheroma formation) on brain MRA were defined as a-VBD. RESULTS: There were 91 patients (67 [73.6%] males, mean age 65.5 years [SD = 15.2, range, 21-91]) with VBD-related PCS recruited for the present study; 31 were a-VBD and 60 were p-VBD. The results showed that there were significant differences in onset age, frequency of cigarette smoking, dissecting vascular involvement, and infarct locations between the 2 groups. In addition, compared with p-VBD, the a-VBD group had poorer functional recovery at 3 months and 1 year, respectively, which was independent of age, sex, vascular risk factors, stroke severity at admission, and treatment options. CONCLUSION: VBD-related PCS with and without accompanied atherosclerosis had different manifestations and should be regarded as distinct arterial diseases. PMID- 29040972 TI - Regulation of Coronary Arterial Large Conductance Ca2+-Activated K+ Channel Protein Expression and Function by n-3 Polyunsaturated Fatty Acids in Diabetic Rats. AB - AIM: The objective of this study was to examine the effects of n-3 polyunsaturated fatty acids (n-3 PUFAs) on coronary arterial large conductance Ca2+-activated K+ (BK) channel function in coronary smooth muscle cells (SMCs) of streptozotocin-induced diabetic rats. METHODS: The effects of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) on coronary BK channel open probabilities were determined using the patch clamp technique. The mRNA and protein expressions of BK channel subunits were measured using qRT-PCR and Western blots. The coronary artery tension and coronary SMC Ca2+ concentrations were measured using a myograph system and fluorescence Ca2+ indicator. RESULTS: Compared to nondiabetic control rats, the BK channel function was impaired with a reduced response to EPA and DHA in freshly isolated SMCs of diabetic rats. Oral administration of n-3 PUFAs had no effects on protein expressions of BK channel subunits in nondiabetic rats, but significantly enhanced those of BK-beta1 in diabetic rats without altering BK-alpha protein levels. Moreover, coronary ring tension induced by iberiotoxin (a specific BK channel blocker) was increased and cytosolic Ca2+ concentrations in coronary SMCs were decreased in diabetic rats, but no changes were found in nondiabetic rats. CONCLUSIONS: n-3 PUFAs protect the coronary BK channel function and coronary vasoreactivity in diabetic rats as a result of not only increasing BK-beta1 protein expressions, but also decreasing coronary artery tension and coronary smooth muscle cytosolic Ca2+ concentrations. PMID- 29040973 TI - Sulforaphane and Epigallocatechin Gallate Restore Estrogen Receptor Expression by Modulating Epigenetic Events in the Breast Cancer Cell Line MDA-MB-231: A Systematic Review and Meta-Analysis. AB - BACKGROUND/AIMS: Epigenetics refers to modifications in gene activity and expression without alteration at the DNA sequence. Environment and diet could influence gene expression. Diet modifications may be meaningful in preventing and treating chronic diseases, cancer included. Dietary bioactive compounds, such as polyphenols (e.g., curcumin, resveratrol, or epigallocatechin gallate [EGCG]) or isothiocyanate (e.g., sulforaphane [SFN]), can regulate histone acetylation. The aim of this systematic review and meta-analysis was to evaluate the effect of SFN and EGCG on breast cancer (BC) cells cultured in vitro. METHODS: Due to the enormous variability observed in study protocols and the innumerable genes involved, only studies analyzing the number of apoptotic cells in the MDA-MB-231 cell line were evaluated. The effect size (ES) was computed as the ratio of means. RESULTS: We identified 7 studies, 4 regarding the effect of 10 uM SFN on MDA-MB-231 cells (ES = 4.59, 95% confidence interval 4.05-5.20) and 3 focusing on the impact of 20 uM EGCG (ES = 2.84, 95% confidence interval 2.60-3.10). CONCLUSION: The findings suggest beneficial effects of dietary bioactive compounds such as SFN and EGCG and their effect on BC cells by restoring estrogen receptor gene expression, modulating epigenetic changes and events, and interfering with tumor growth rate. Publication bias limits the generalizability of the conclusions. High-quality studies are needed. PMID- 29040975 TI - Consensus Statements. PMID- 29040974 TI - An Intergroup Randomized Phase II Study of Bevacizumab or Cetuximab in Combination with Gemcitabine and in Combination with Chemoradiation in Patients with Resected Pancreatic Carcinoma: A Trial of the ECOG-ACRIN Cancer Research Group (E2204). AB - OBJECTIVES: Evaluate toxicity of two treatment arms, A (cetuximab) and B (bevacizumab), when combined with gemcitabine, and chemoradiation in patients with completely resected pancreatic carcinoma. Secondary objectives included overall survival (OS) and disease-free survival (DFS). METHODS: Patients with R0/R1 resection were randomized 1:1 to cetuximab or bevacizumab administered in combination with gemcitabine for two treatment cycles. Next three cycles included concurrent cetuximab/bevacizumab plus chemoradiation, followed by one cycle of cetuximab/bevacizumab. Cycles 7-12 included cetuximab/bevacizumab with gemcitabine. Cycles were 2 weeks. Frequency of specific toxicities was summarized for each treatment arm at two times during the study, after chemotherapy but prior to chemoradiation and after all therapy. RESULTS: A total of 127 patients were randomized (A, n = 65; B, n = 62). Prior to chemoradiation, the overall rate for toxicities of interest was 10% for arm A and 2% for arm B. After all therapy, the overall rates for toxicities of interest were 30 and 25% for arms A and B, respectively. Overall median OS and DFS were 17 and 11 months, respectively, which is not a significant improvement over expected survival rates for historical controls. CONCLUSIONS: Both treatments were tolerable with manageable toxicities, and were safe enough for a phase III trial had this been indicated. PMID- 29040976 TI - Diagnosing Psychopathy through Emotional Regulation Tasks: Heart Rate Variability versus Implicit Association Test. AB - BACKGROUND: Nowadays, the assessment of psychopathy relies on semistructured interviews plus file reviews. In order to improve the predictive validity of psychopathy at the individual level, tools that are not based on the rating of signs and symptoms are in great need. SAMPLING AND METHODS: The present study was conducted in a representative sample of 204 Spanish sentenced inmates. These inmates have served at least 6 months of their sentence at the Pereiro de Aguiar (Ourense, Spain) penitentiary. Psychopathy signs and symptoms were scored through interview and file review. The Implicit Association Test (IAT) and heart rate variability (HRV) experiments were also conducted. The Iowa Gambling Task (IGT) was performed as a control measure. RESULTS: Spectral HRV indices were able to detect psychopathic inmates at a significant level, while IAT experiments and the IGT could not discriminate them. HRV indices showed a more significant difference when assessing the affective-interpersonal dimensions of psychopathy. CONCLUSIONS: An HRV experiment is better than IAT in order to detect psychopathy in a representative sample of Spanish inmates. PMID- 29040977 TI - Gene Microarray Integrated with High-Throughput Proteomics for the Discovery of Transthyretin in Rhabdomyolysis-Induced Acute Kidney Injury. AB - BACKGROUND/AIMS: Rhabdomyolysis, one of the leading causes of acute kidney injury (AKI), develops after trauma, drug toxicity, infections, burns, and physical exertion. The aim of this study was to investigate differences in gene and protein expression to elucidate the pathogenesis of rhabdomyolysis (RM)-induced AKI. METHODS: In this study, we used glycerol induced renal injury as a model of RM-induced AKI. Affymetrix U133 plus 2.0 microarrays were used to perform gene microarray analysis. Isobaric tagging with related and absolute quantitation (iTRAQ) labeling mass spectrometry (MS) was applied to screen and identify differentially expressed proteins between RM-induced AKI and normal murine renal tissue. Verification experiments included immunohistochemistry (IHC), real-time PCR, Western blotting, and the measurement of ATP and ROS production. HK-2 cells were incubated in vitro with ferrous myoglobin and pcDNA-TTR, followed by assays to detect cell proliferation, ROS and apoptosis. RESULTS: According to gene microarray and iTRAQ-MS analysis, we screened 17 common elements. After multiple analyses, we selected transthyretin (TTR) as our focus and investigated TTR in the kidney. Verification experiments with IHC confirmed differential expression levels of TTR proteins. Furthermore, Western blotting showed a stepwise decrease in TTR in AKI renal tissues. Cell-based experiments showed that overexpression of TTR could improve HK-2 cell viability and inhibit apoptosis. TTR reduced apoptosis by decreasing the accumulation of reactive oxygen species (ROS). CONCLUSION: This study reports a possible mechanism for RM-induced AKI and suggests that reductions in TTR could increase the generation of ROS and induce apoptosis. TTR may be a potentially valuable target for RM-induced AKI. PMID- 29040980 TI - New Era of the Management of Liver Diseases and Liver Cancer: State-of-the-Art Progress in 2017. PMID- 29040978 TI - Hydrogen-Rich Saline Attenuates Brain Injury Induced by Cardiopulmonary Bypass and Inhibits Microvascular Endothelial Cell Apoptosis Via the PI3K/Akt/GSK3beta Signaling Pathway in Rats. AB - BACKGROUND/AIMS: Cardiopulmonary bypass (CPB) is prone to inducing brain injury during open heart surgery. A hydrogen-rich solution (HRS) can prevent oxidation and apoptosis, and inhibit inflammation. This study investigated effects of HRS on brain injury induced by CPB and regulatory mechanisms of the PI3K/Akt/GSK3beta signaling pathway. METHODS: A rat CPB model and an in vitro cell hypoxia model were established. After HRS treatment, Rat behavior was measured using neurological deficit score; Evans blue (EB) was used to assess permeability of the blood-brain barrier (BBB); HE staining was used to observe pathological changes; Inflammatory factors and brain injury markers were detected by ELISA; the PI3K/Akt/GSK3beta pathway-related proteins and apoptosis were assessed by western blot, immunohistochemistry and qRT -PCR analyses of brain tissue and neurons. RESULTS: After CPB, brain tissue anatomy was disordered, and cell structure was abnormal. Brain tissue EB content increased. There was an increase in the number of apoptotic cells, an increase in expression of Bax and caspase-3, a decrease in expression of Bcl2, and increases in levels of Akt, GSK3beta, P Akt, and P-GSK3beta in brain tissue. HRS treatment attenuated the inflammatory reaction ,brain tissue EB content was significantly reduced and significantly decreased expression levels of Bax, caspase-3, Akt, GSK3beta, P-Akt, and P GSK3beta in the brain. After adding the PI3K signaling pathway inhibitor, LY294002, to rat cerebral microvascular endothelial cells (CMECs), HRS could reduce activated Akt expression and downstream regulatory gene phosphorylation of GSK3beta expression, and inhibit CMEC apoptosis. CONCLUSION: The PI3K/Akt/GSK3beta signaling pathway plays an important role in the mechanism of CPB-induced brain injury. HRS can reduce CPB-induced brain injury and inhibit CMEC apoptosis through the PI3K/Akt/GSK3beta signaling pathway. PMID- 29040981 TI - Abdominal Ultrasound Findings of Tumor-Forming Hepatic Malignant Lymphoma. AB - AIM/BACKGROUND: Evaluations of abdominal ultrasonography (US) findings of primary and secondary tumor-forming hepatic malignant lymphoma (HML) have not been adequately reported. In this study, we elucidated US and contrast-enhanced US (CEUS) findings in patients with HML. MATERIALS/METHODS: From January 2006 to March 2017, 25 patients with HML were enrolled (primary 7, secondary 18), each of whom was diagnosed pathologically. They were divided into 2 groups based on tumor diameter (cutoff, 30 mm). US imaging findings were retrospectively analyzed. RESULTS: All tumors in patients with a small HML (<30 mm in diameter, small group, n = 14) were revealed as homogeneous hypo-echoic type (100%), with penetrating sign observed in only 1 patient. Tumors in 11 patients in the small group, examined with CEUS, showed homogeneous enhancement in the early vascular phase (91%) and a washout pattern in the portal phase (100%), and they were revealed as defective in the post-vascular phase (100%). In the large group (>=30 mm; n = 11), tumors were revealed as a heterogeneous hypo-echoic lesion in 10 (91%) and penetrating sign was observed in 8 (73%). Dilatation of the distal intrahepatic bile duct by the tumor was observed in 4 patients in the large group. In 7 large group patients examined with CEUS, imaging findings in the early vascular phase varied, with 5 (71%) showing a washout pattern in the portal phase and 5 (71%) revealed as defective in the post-vascular phase. CONCLUSION: We found that US imaging features of HML differ depending on the tumor diameter. PMID- 29040982 TI - Clinicopathological Study of Autoimmune Hepatitis Cases That Were Difficult to Differentiate from Drug-Induced Liver Injury. AB - AIM: Acute-onset autoimmune hepatitis (AIH) histopathologically presents with features of acute hepatitis and lacks a specific diagnostic method. Also, AIH is often difficult to differentiate from drug-induced liver injury (DILI). We aimed to investigate the final clinical diagnosis of these cases, and compare the clinical, biochemical, and histological characteristics of AIH vs. DILI. METHODS: We examined the Digestive Disease Week Japan 2004 (DDW-J) scale scores, AIH scores, clinical data, and pathological findings in 20 patients in whom it was difficult to differentiate autoimmune liver disease from DILI. RESULTS: In cases with a DDW-J scale score of >=5, there was a good correlation between the final diagnosis and DDW-J scale assessments, but in cases with a DDW-J scale score of ?4 they did not correlate well. The scores for pathological findings, such as cobblestone hepatocellular change (p = 0.015), interface hepatitis (p = 0.012), and prominent plasma cells in portal areas (p = 0.011), were higher in the AIH group than in the DILI group. CONCLUSION: This study showed that DDW-J scale was useful for differentiating AIH from DILI in cases with a DDW-J scale score of ?5. The histologic features of AIH were characterized by cobblestone hepatocellular change, interface hepatitis, and plasma cell infiltration of the portal region. PMID- 29040983 TI - Diagnosis of Fibrosis and Activity by a Combined Use of Strain and Shear Wave Imaging in Patients with Liver Disease. AB - OBJECTIVE: Performing shear wave imaging is simple, but can be difficult when inflammation, jaundice, and congestion are present. Therefore, the correct diagnosis of liver fibrosis using shear wave imaging alone might be difficult in mild-to-moderate fibrosis cases. Strain imaging can diagnose liver fibrosis without the influence of inflammation. Therefore, the combined use of strain and shear wave imaging (combinational elastography) for cases without jaundice and congestion might be useful for evaluating fibrosis and inflammation. METHODS: We enrolled consecutive patients with liver disease, without jaundice or liver congestion. Strain and shear wave imaging, blood tests, and liver biopsy were performed on the same day. The liver fibrosis index (LF index) was calculated by strain imaging; real-time tissue elastography, and the shear wave velocity (Vs) was calculated by shear wave imaging. Fibrosis index (F index) and activity index (A index) were calculated as a multiple regression equation for determining hepatic fibrosis and inflammation using histopathological diagnosis as the gold standard. The diagnostic ability of F index for fibrosis and A index for inflammation were compared using LF index and Vs. RESULTS: The total number of enrolled cases was 388. The area under the receiver operating characteristic (AUROC) was 0.87, 0.80, 0.83, and 0.80, at diagnosis of fibrosis stage with an F index of F1 or higher, F2 or higher, F3 or higher, and F4, respectively. The AUROC was 0.94, 0.74, and 0.76 at diagnosis of activity grade with an A index of A1 or higher, A2 or higher, and A3, respectively. The diagnostic ability of F index for liver fibrosis and A index for inflammation was higher than for other conventional diagnostic values. CONCLUSIONS: The combined use of strain and shear wave imaging (combinational elastography) might increase the positive diagnosis of liver fibrosis and inflammation. PMID- 29040984 TI - Ability of Cytokeratin-18 Fragments and FIB-4 Index to Diagnose Overall and Mild Fibrosis Nonalcoholic Steatohepatitis in Japanese Nonalcoholic Fatty Liver Disease Patients. AB - BACKGROUND: Several laboratory markers used in lieu of liver biopsy are reportedly useful in the diagnosis of nonalcoholic steatohepatitis (NASH). In the present study, we investigated the diagnostic impact of various non-invasive markers for predicting NASH. METHODS: A total of 229 nonalcoholic fatty liver disease (NAFLD) patients who underwent liver biopsy were enrolled for the study. The diagnostic ability of various markers to diagnose NASH from NAFLD was investigated. RESULTS: A total of 140 patients were histologically diagnosed with NASH. Of these, 104 had degree 0-2 fibrosis (F0-2), and 36 had degree 3-4 fibrosis (F3-4). Multiple logistic regression analysis identified hyaluronic acid (HA) (OR 1.014; 95% CI 1.002-1.026; p = 0.024), FIB-4 index (OR 2.097; 95% CI 1.177-3.735; p = 0.012), and cytokeratin-18 fragments (CK-18F) (OR 1.002; 95% CI 1.001-1.002; p < 0.001) as factors independently associated with the diagnosis of NASH. The areas under the receiver operating characteristic curves (AUROCs) of HA, FIB-4 index, and CK-18F for the diagnosis of NASH were 0.77, 0.76, and 0.72, respectively. In addition, FIB-4 index (OR 1.907; 95% CI 1.063-3.419; p = 0.03) and CK-18F (OR 1.002; 95% CI 1.001-1.002; p < 0.001) could differentiate between NASH and NAFL, even when NASH patients with advanced fibrosis (F3-4) were excluded. AUROCs of FIB-4 index and CK-18F for the diagnosis of NASH with mild fibrosis (F0-2) from NAFLD were 0.70 and 0.70, respectively. CONCLUSIONS: FIB-4 index and CK-18F have good diagnostic abilities not only for NASH overall, but also for NASH with mild fibrosis. PMID- 29040985 TI - Serum IFN-lambda3 Levels Correlate with Serum Hepatitis C Virus RNA Levels in Symptomatic Patients with Acute Hepatitis C. AB - BACKGROUND: Recent genome-wide association studies demonstrated that 2 single nucleotide polymorphisms (SNPs), upstream of the interferon-lambda (IFNL) 3 gene, are associated with the spontaneous clearance of hepatitis C virus (HCV) in symptomatic patients with acute hepatitis C (AHC). Although these 2 SNPs, rs8099917 and rs12979860, have established their significant roles in the innate immunity response to spontaneously clear HCV in patients with AHC, the detailed mechanisms of their roles remain largely unknown. AIM: This study is aimed at clarifying the factors affecting IFNL3 production and assessing the roles of IFNL3 in AHC. MATERIALS AND METHODS: A total of 21 AHC patients who visited the hospital within 10 days after symptom onset were assessed. As controls, 23 healthy volunteers (HVs) were examined. Serum IFNL3 levels were quantified using an in-house, IFNL3-specific chemiluminescence enzyme immunoassay (CLEIA) kit. Serum IFNL1, IFN-alpha, IFN-beta, and IFN-gamma induced protein-10 (IP-10) levels were assayed using commercial enzyme-linked immunosorbent assay (ELISA) kits. RESULTS: At baseline, serum IFNL3 levels were higher in AHC patients than in HVs (p < 0.0001). The higher levels in AHC patients did not differ between patients with the rs8099917 TT genotype and those with the non-TT (TG/GG) genotype (p = 0.546). Serial measurement of serum IFNL3 levels did not predict the outcome of conventional AHC. However, serum IFNL3 levels at baseline correlated positively with the HCV RNA levels (p = 0.005). Following HCV eradication, serum IFNL3 levels reduced to within the range obtained for HVs. Baseline serum IFNL1 levels did not differ significantly between AHC patients and HVs (p = 0.284). Serum levels of IFNL1 and IFNL3 at baseline also showed no correlative power (p = 0.288). Serum IFN-alpha and IFN-beta were detected together with remarkably high serum IFNL3 levels in only one patient who progressed to acute liver failure (ALF). CONCLUSION: These findings indicate that serum IFNL3 levels at baseline are higher in AHC patients regardless of the rs8099917 polymorphism, and primary HCV infection triggers the production of IFNL3. As a first line of defense in the innate immune system against invading HCV, increased IFNL3 levels play an important role, but serum IFNL3 levels are not the principal determinant of the clinical course of conventional AHC. PMID- 29040987 TI - Hepatocarcinogenesis Is Associated with Serum Albumin Levels after Sustained Virological Responses with Interferon-Based Therapy in Patients with Hepatitis C. AB - OBJECTIVE: It is a generally accepted fact that eradication of hepatitis virus C inhibits the subsequent development of hepatocellular carcinoma (HCC). On the contrary, a significant population of patients developed HCC despite sustained virological responses (SVRs) to interferon (IFN) therapy. METHODS: A total of 415 patients with chronic hepatitis C, who were treated at our hospital between 2004 and 2014, were enrolled for this study. We examined the risk factors for HCC development after IFN therapy. RESULTS: After analyzing various clinical parameters, it was concluded that a serum albumin (ALB) level <4.0 g/dL and the presence or absence of SVR achievement were risk factors for the development of HCC. When analyzing pre- and posttreatment factors, only a serum ALB level <4.0 g/dL was considered a significant risk factor. The presence or absence of liver fibrosis progression was not identified as a risk factor. CONCLUSIONS: In patients with a serum ALB level <4.0 g/dL before IFN therapy, hepatic carcinogenesis after SVR achievement need to be considered. Furthermore, the serum ALB level may be more useful than the degree of fibrosis for the prediction of HCC after SVR in chronic hepatitis C. PMID- 29040986 TI - Comparison of Sofosbuvir Plus Ribavirin Treatment with Pegylated Interferon Plus Ribavirin Treatment for Chronic Hepatitis C Genotype 2. AB - BACKGROUND: Sofosbuvir plus ribavirin (RBV) therapy showed higher sustained virological response at 12 weeks after treatment (SVR12) than pegylated interferon (peg-IFN) plus RBV; however, liver function, fibrosis, and hepatocellular carcinoma markers have not been assessed so far. SUMMARY: Patients (n = 21) receiving Sofosbuvir plus RBV and those (n = 24) receiving peg-IFN plus RBV were enrolled in this study. Changes in alanine aminotransferase (ALT) and alpha-fetoprotein (AFP) levels, platelet (PLT) counts, FIB-4, and aspartate aminotransferase-to-platelet ratio index (APRI) in both groups were assessed in patients achieving SVR12. Also, fibrosis regression was assessed using pathophysiological biomarkers, such as hyaluronic acid, bone morphogenetic protein 7 (BMP-7), and connective tissue growth factor (CTGF) in the Sofosbuvir plus RBV group. In both groups, while the reduction in ALT levels was significant that of AFP was not. Compared with the baseline, although serum PLT count at the end of treatment (EOT) was significantly higher in the Sofosbuvir plus RBV group, it was significantly lower in the peg-IFN plus RBV group. Although a significant decline in fibrosis markers such as FIB-4 and APRI was observed between the baseline and at EOT in the Sofosbuvir plus RBV group, no significant change of these markers was observed in the peg-IFN plus RBV group. Moreover, BMP-7 and CTGF were significantly lower at EOT than the baseline in the Sofosbuvir plus RBV group. Key Message: The treatment with Sofosbuvir plus RBV results in not only a higher SVR, but also improves the liver function and the degree of fibrosis. PMID- 29040989 TI - Hepatocellular Carcinoma after Achievement of Sustained Viral Response with Daclatasvir and Asunaprevir in Patients with Chronic Hepatitis C Virus Infection. AB - BACKGROUND: Interferon-based antiviral therapies against hepatitis C virus (HCV) infection have been shown to reduce the incidence of hepatocellular carcinoma (HCC) in patients with sustained viral response (SVR). Recently, direct-acting antivirals (DAAs) have been proven to be much more effective in achieving SVR than interferon-based therapies. However, whether DAAs can efficiently prevent the occurrence of HCC after SVR remains controversial. To clarify this issue, we analyzed the clinical features of patients in whom HCC developed after achievement of SVR with DAAs for chronic HCV infection. SUMMARY: Among patients who achieved SVR with daclatasvir and asunaprevir (n = 100), HCC developed in 17 patients (HCC group; n = 17) and did not develop in 83 patients (non-HCC group; n = 83) during a mean observation period of 15 months. A multivariate Cox proportional hazards analysis identified past history of HCC and male sex as significant risk factors for the emergence of HCC after DAAs. Sixteen cases with HCC after DAAs were in the very early or early stage (16/17, 94.1%), and one case was in the advanced stage (1/17, 5.9%) with portal venous tumor thrombus. Radiofrequency ablation and/or transarterial chemoembolization were performed in most cases as curative therapy (16/17, 94.1%). Key Messages: SVR by DAAs did not completely prevent the occurrence of HCC. However, even if HCC did develop after SVR, curative anticancer therapy was applicable in most cases. PMID- 29040988 TI - Unique Characteristics Associated with Sustained Liver Damage in Chronic Hepatitis C Patients Treated with Direct Acting Antivirals. AB - BACKGROUND AND AIMS: Direct-acting antivirals (DAAs) dramatically improve the sustained virological response (SVR) of chronic hepatitis C (CHC) patients. However, continuous liver damage after SVR may be a risk of hepatocellular carcinoma (HCC). We clarified pretreatment characteristics related to sustained liver damage after SVR. METHODS: A total of 286 CHC patients were treated with an interferon-free DAA regimen. Among them, 250 patients achieved SVR for 12 weeks after the end of treatment (SVR12); these individuals were classified based on alpha-fetoprotein (AFP) and alanine transaminase (ALT) levels posttreatment. Baseline characteristics significantly associated with AFP >5 ng/mL and ALT level >=20 IU/L after SVR were clarified using multivariate analyses. RESULTS: Among the pretreatment factors examined, serum AFP values and the presence of fatty liver (FL) were significantly associated with abnormal AFP (p < 0.0001) and ALT levels 12 weeks after SVR12 (SVR24; p = 0.0109). For 126 patients who showed an increase in baseline AFP level, FL, fibrosis-4 (FIB-4) index, and albumin levels before treatment were related to abnormal AFP at SVR24 (p = 0.0005, 0.0232, and 0.0400 for FL, FIB-4 index, and albumin, respectively). Similarly, for 150 patients with abnormal baseline ALT levels, FL was associated with an ALT level >= 30 IU/L after SVR (p = 0.0430). CONCLUSIONS: High FIB-4 index, low albumin level, and FL before DAA treatment were associated with a risk of sustained liver damage with AFP and ALT elevation after SVR; patients with these factors should be carefully monitored for emergence of HCC. PMID- 29040990 TI - Non-Hypervascular Hypointense Hepatic Nodules during the Hepatobiliary Phase of Gadolinium-Ethoxybenzyl-Diethylenetriamine Pentaacetic Acid-Enhanced MRI as a Risk Factor of Intrahepatic Distant Recurrence after Radiofrequency Ablation of Hepatocellular Carcinoma. AB - BACKGROUND: Non-hypervascular hypointense hepatic nodules during the hepatobiliary phase of gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced MRI have been reported to be associated with intrahepatic distant recurrence (IDR) after hepatectomy or radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC). IDR is categorized into hypervascular transformation of non-hypervascular hypointense hepatic nodules and new intrahepatic recurrence. The aim of this study was to evaluate the relationship between non-hypervascular hypointense hepatic nodules on Gd-EOB-DTPA enhanced MRI and IDR after RFA, focusing on new intrahepatic recurrence. METHODS: Ninety-one consecutive patients with 115 HCCs undergoing pretreatment Gd-EOB-DTPA enhanced MRI and RFA for treatment of HCC were enrolled. RESULTS: Of the 91 patients who underwent RFA for HCC, 24 had non-hypervascular hypointense hepatic nodules on pretreatment Gd-EOB-DTPA-enhanced MRI. Recurrences were observed in 15 and 19 patients with and without non-hypervascular hypointense hepatic nodules, respectively. Of the 15 recurrences in patients with non-hypervascular hypointense hepatic nodules, 10 patients had new intrahepatic recurrences. The cumulative incidence of new intrahepatic recurrence was significantly higher in patients with non-hypervascular hypointense hepatic nodules than in those without non-hypervascular hypointense hepatic nodules (p < 0.0001). Multivariate analysis revealed that the presence of non-hypervascular hypointense hepatic nodules and Child-Pugh score were independent risk factors for new intrahepatic recurrence. CONCLUSIONS: Non-hypervascular hypointense hepatic nodules during the hepatobiliary phase of Gd-EOB-DTPA-enhanced MRI were a useful predictive factor for IDR, particularly for new intrahepatic recurrence, after RFA. PMID- 29040991 TI - Impact of Tumor Factors on Survival in Patients with Hepatocellular Carcinoma Classified Based on Kinki Criteria Stage B2. AB - BACKGROUND: Tumors classified based on the Barcelona Clinic Liver Cancer (BCLC) stage B hepatocellular carcinoma (HCC) are heterogeneous in nature. Previously, the Kinki criterion was proposed for a more precise subclassification of tumors in BCLC-stage B. However, tumors in sub-stage B2 include various size and number of HCCs even with the Kinki criteria, which could lead to heterogeneity for overall survival (OS). In this study, we assessed how the size and number of tumors affect the OS and time to progression (TTP) in patients with Kinki criteria stage B2 tumors and treated with transarterial chemoembolization (TACE). METHODS: Of 906 HCC patients treated with TACE at Kindai University Hospital, 236 patients with HCC considered as Kinki criteria stage B2 were examined. They were classified into the following 4 groups according to the maximum tumor diameter and number of tumors: B2a group, tumor size <=6 cm and total number of tumors <=6; B2b group, size <=6 cm and number >6; B2c group, size >6 cm and number <=6; and B2d group, size >6 cm and number >6. The OS and TTP of patients in each group were compared. RESULTS: There were 131 patients (55.5%) in the B2a group, 58 (24.6%) in the B2b group, 41 (17.4%) in the B2c group, and 6 (0.03%) in the B2d group. Comparison of the survivals revealed that the median OS was 2.8 years (95% CI 2.0-3.5) in the B2a group, 2.8 years (95% CI 2.0-3.3) in the B2b group, 1.9 years (95% CI 0.8-4.0) in the B2c group, and 2.3 years (95% CI 1.2-ND [no data]) in the B2d group, respectively (p = 0.896). The median TTP in B2a, B2b, B2c, and B2d sub-substage HCC were13.2, 12.1, 13.8, and 11.5 months, respectively (p = 0.047). The median TTP in B2a + B2c sub-substage patients was longer than that in B2b + B2d sub-substage HCC patients (14.0 months and 10.4 months; p = 0.002). CONCLUSION: No significant differences were observed in the OS among HCC patients subclassified based on the maximum tumor diameter and tumor number in Kinki criteria stage B2. Consequently, Kinki criteria stage B2 HCC is a homogeneous subgroup in terms of OS prediction. However, shorter TTP in B2b+B2c sub-substage HCC patients than that in B2a + B2c sub-substage HCC patients suggests that different treatment strategy, such as systemic therapy with targeted agents instead of TACE, may be suitable to preserve the liver function. PMID- 29040992 TI - Time to Transcatheter Arterial Chemoembolization Refractoriness in Patients with Hepatocellular Carcinoma in Kinki Criteria Stages B1 and B2. AB - BACKGROUND: Transarterial chemoembolization (TACE) is recommended for patients with hepatocellular carcinoma (HCC) in Barcelona Clinic Liver Cancer (BCLC) stage B. However, because of the heterogeneity of HCC in BCLC stage B; various subclassification systems have been proposed to predict the prognosis of patients. Previously, we proposed the Kinki criteria for precise classification of HCC cases in BCLC stage B. In this study, we compared the time to TACE refractoriness in HCC patients with Kinki criteria substages B1 and B2-HCC. SUMMARY: Between January 2006 and December 2013, 592 HCC patients (substage B1, n = 118; substage B2, n = 170) underwent TACE. Time to progression under TACE treatment was defined as the time to untreatable progression (TTUP). TTUP and changes in liver function were analyzed in patients with substages B1 and B2-HCC. The median TTUP was 25.7 months (95% CI 19.3-37.3) and 16.4 months (95% CI 13.1 20.2) in patients with substage B1-HCC and substage B2-HCC, respectively (p = 0.0050). In patients with substage B2-HCC, median Child-Pugh scores after the first TACE session was significantly different from those after third and fifth TACE sessions (first-third, p = 0.0020; first-fifth, p = 0.0008). Key Message: TACE refractoriness occurred earlier in patients with substage B2-HCC than those with substage B1-HCC; deterioration of liver function with repeated TACE was more obvious in HCC cases with stage-B1 tumor. Shorter TTUP and impaired liver function due to repeated TACE could be responsible for the shorter survival in patients with substage B2-HCC. PMID- 29040993 TI - Hemodynamic Changes on Cone-Beam Computed Tomography during Balloon-Occluded Transcatheter Arterial Chemoembolization Using Miriplatin for Hepatocellular Carcinoma: A Preliminary Study. AB - BACKGROUND/AIM: Balloon-occluded transcatheter arterial chemoembolization (B TACE) using miriplatin (MPT) is anticipated as a new strategy for hepatocellular carcinoma (HCC). This study was aimed at evaluating the hemodynamic changes with/without balloon occlusion of the hepatic artery, correlation of cone-beam CT (CBCT) pixels, and CT value after B-TACE for HCC. METHODS: A total of 52 patients with HCC, who underwent B-TACE using MPT in addition to the balloon-occluded CBCT hepatic arteriography, were studied. RESULTS: After balloon occlusion, CBCT pixel values increased in 37 lesions, whereas it decreased in 15 lesions. Intratumoral CT values after B-TACE were lower with decreased CBCT pixel values than with increased CBCT pixel values. CONCLUSION: Hemodynamic changes on CBCT during balloon occlusion can be used to predict the efficacy of B-TACE using MPT. PMID- 29040994 TI - Sorafenib-Regorafenib Sequential Therapy in Advanced Hepatocellular Carcinoma: A Single-Institute Experience. AB - OBJECTIVES: Previously, no therapeutic agent has been known to improve the overall survival compared with placebo in patients with hepatocellular carcinoma (HCC), who have progressed after sorafenib. In this patient population, regorafenib was first demonstrated to confer a survival benefit in the RESORCE trial, and subsequently it was approved as a second-line treatment for patients with advanced HCC. An open-label expanded access program (EAP) of regorafenib was implemented for compassionate use. We investigated the efficacy and safety of regorafenib based on our experience of the RESORCE trial and the EAP. METHODS: Data from 5 patients from the RESORCE trial and 6 from the EAP were analyzed retrospectively. All patients had tolerated prior sorafenib and were progressing during sorafenib treatment. RESULTS: The median progression-free survival was 9.2 months (95% CI 2.3-16.1). One patient achieved a partial response and 7 achieved stable disease. The objective response rate was 9.1%, and the disease control rate was 72.7%. No treatment-associated mortalities were observed. Grade 3 hypophosphatemia was observed in 2 patients, grade 2 anorexia was observed in 5 patients, and grade 3 neutropenia was observed in 2 patients. Grade 2 and grade 3 thrombocytopenia were observed in 2 and 3 patients, respectively. All treatment related adverse events were improved by reduction or interruption of regorafenib. Five patients showed decreased serum albumin levels. CONCLUSION: Sorafenib and regorafenib sequential therapy presents a safe and effective treatment option for patients with advanced HCC. PMID- 29040995 TI - Role of Immune Checkpoint Blockade in the Treatment for Human Hepatocellular Carcinoma. AB - With the development of molecular targeting therapy, several treatment options for advanced hepatocellular carcinoma (HCC) have become available in cases where curative and other palliative treatments, such as radiofrequency ablation, surgical resection, and transarterial chemoembolization, are not applicable. However, with the detection of a variety of mutations in cancer-related genes in a single tumor, molecular heterogeneity is commonly observed in HCC. Therefore, mutations in the major cellular signaling pathways underlie the development of resistance to molecular targeting agents. On the contrary, immune checkpoint inhibitors have proven effective in patients who are refractory to conventional treatments and molecular targeting therapy. Several clinical trials are currently investigating the efficacy of immune checkpoint inhibitors both individually and in combination with other types of anticancer agents. In this review, we focus on the potential of immune checkpoint blockade in the treatment of human HCC. PMID- 29040998 TI - Erratum. PMID- 29040999 TI - Hepatic Function during Repeated TACE Procedures and Prognosis after Introducing Sorafenib in Patients with Unresectable Hepatocellular Carcinoma: Multicenter Analysis. AB - BACKGROUND/AIM: We evaluated the relationship of hepatic function with repeated transarterial catheter chemoembolization (TACE) and prognosis after sorafenib treatment in various patient cohorts. METHODS: Study 1 comprised of 212 Barcelona clinic liver cancer stage-B (BCLC-B) HCC patients classified as Child-Pugh A (CP A) and who had received repeated TACE treatments (r-TACE) (naive:recurrence = 66:146). Study 2 comprised of 435 patients with unresectable HCC classified as CP A in who sorafenib was introduced (naive:recurrence = 37:398; CP score 5:6 = 282:153; macro-vessel invasion [MVI]+: extrahepatic metastasis [EHM]+ both negative = 124:226:143). Changes in hepatic function along with CP and albumin bilirubin (ALBI) score/grade during r-TACE in Study 1, and prognosis after introducing sorafenib in Study 2 were evaluated. RESULTS: Hepatic function worsened to CP-B in 9-14% with each TACE procedure, while 18-21% had a change of classification from ALBI-1 to ALBI-2. When the prognosis of patients with the best CP score of 5 was analyzed, those with ALBI-1 (n = 154) had a better outcome than those with ALBI-2 (n = 128) (MST 17.5 vs. 9.9 months; p = 0.01), while ALBI 1 (n = 43) patients also showed a better outcome than ALBI-2 (n = 34) patients with a CP score of 5 without MVI/EHM (MST: 17.5 vs. 10.0 months; p = 0.029). The Akaike's Information criterion for ALBI-grade (MST: grade 1 vs. 2 = 16.9 vs. 10.4 months; p = 0.001) was also better than that for CP (MST: score 5 vs. 6 = 14.4 vs. 10.5 months; p = 0.003) (3195.6 vs. 3197.5) in all 435 patients. CONCLUSION: The rate of patients with downgraded hepatic function during r-TACE, especially with regard to ALBI-grade, was not low. ALBI-grade was shown to be a better hepatic function assessment tool than CP in patients receiving sorafenib treatment. Strict judgment of TACE-refractory status in patients with unresectable HCC is needed to improve prognosis before downgrading the hepatic function. PMID- 29041000 TI - Genetic Variations of Oxidative Stress Related Genes ALOX5, ALOX5AP and MPO Modulate Ischemic Stroke Susceptibility Through Main Effects and Epistatic Interactions in a Chinese Population. AB - BACKGROUND/AIMS: To investigate the roles of the oxidative stress related-genes ALOX5, ALOX5AP and MPO in ischemic stroke susceptibility in the Han Chinese population. METHODS: A total of 351 ischemic stroke patients and 417 controls were recruited. The ALOX5 rs10900213, ALOX5AP rs4293222 and MPO rs2107545 gene polymorphisms were genotyped. RESULTS: We identified that rs2107545 of MPO gene was significantly associated with ischemic stroke susceptibility after adjusting for covariates. Furthermore, we also considered the likely complexity of oxidative stress and inflammatory process in stroke by assessing the combined effects of multiple genes. Generalized multifactor dimensionality reduction (GMDR) analysis revealed that the combination of ALOX5 rs10900213, ALOX5AP rs4293222 and MPO rs2107545 was significantly associated with increased risk of ischemic stroke (P=0.0040, OR (95% CI) =1.991 (1.241 to 3.195)). Additionally, the MPO rs2107545 genotype was significantly associated with clinical outcomes at 6 months after discharge from the hospital. CONCLUSION: Our study revealed that epistatic interaction among the ALOX5, ALOX5AP and MPO genes played a significant role in vulnerability to ischemic stroke. Furthermore, these results also suggest that the rs2107545 of MPO gene can be used as a biomarker for the susceptibility and prognosis of ischemic stroke patients. PMID- 29041001 TI - HMGB1 Expression Level in Circulating Platelets is not Significantly Associated with Outcomes in Symptomatic Coronary Artery Disease. AB - BACKGROUND/AIMS: Platelets express high-mobility group box 1 (HMGB1), a damage associated molecular pattern molecule (DAMP) that triggers thrombosis and inflammation when present in extracellular space. The role of platelet-derived HMGB1 in coronary artery disease (CAD) remains unexplored. METHODS: In a cohort study, we measured the expression of HMGB1 on the surface of circulating platelets in 183 patients with symptomatic CAD (stable CAD: n=80, acute coronary syndrome, ACS: n=103) at the time of percutaneous coronary intervention. All patients were tracked for course of left ventricular ejection fraction (LVEF), all-cause death (ACD), and myocardial infarction (MI) for 360 days after study inclusion. RESULTS: Platelet HMGB1 expression did not significantly differ between stable CAD, unstable CAD, non-ST segment elevation myocardial infarction (NSTEMI), and ST segment elevation myocardial infarction (STEMI). Moreover, platelet HMGB1 did not significantly correlate with LVEF, neither at baseline nor at 6 months follow-up of the MI subgroup, and did not exert any significant effect on outcome (composite of ACD and/or MI as well as single events ACD and MI). Cumulative event-free survival of patients was not significantly different between HMGB1 levels above the median and HMGB1 levels below or equal to the median. CONCLUSION: These findings suggest that HMGB1 expressed on the surface of circulating platelets in patients with symptomatic CAD may not serve as a prognostic biomarker for this disease state. PMID- 29041003 TI - Depression in the Context of Medical Disorders: New Pharmacological Pathways Revisited. AB - The depressive state has been characterised as one of elevated inflammation, changed cardiovascular parameters and a deranged metabolic situation all of which holds promise for a better understanding and handling of treatment-resistance in affective disorders as well as for future developments in treatment algorithms. In this context several biomarkers are differentially regulated by antidepressant treatment and connected to metabolic, inflammatory, cardiovascular and apoptotic components of the pathophysiology, i.e. adiponectin, apolipoprotein-B, B-type natriuretic peptide, cortisol, CRP, cysteine, homocysteine, fibrinogen, adiponectin, BMI, glycated hemoglobin A1c, leptin, interferon-gamma, high-density lipoprotein, interleukin interleukin-1alpha, -1beta, -2, -4, -5, -6, -8, -10, 12, -13, -17, insulin-like growth factor-1, low-density lipoprotein, myeloperoxidase, osteoprotegerin, tumour necrosis factor alpha, troponins, triglycerides etc. In this context antidepressants exert different modulatory effects on the outcome, incidence and mortality concerning several severe disorders, i.e. cancer, diabetes, stroke, inflammation, stroke and cardiovascular risk. Vice versa different drugs used in the treatment of these disorders have a favourable effect in depressive states, e.g. statins, aspirine, NSAIDs, pioglitazone, celecoxib, peroxisome proliferator-activated receptor-gamma agonists and minocycline. In this review, actions of different antidepressant treatment strategies on cancer, stroke, diabetes and cardiovascular disorders are shown and the influence on the outcome of the disorders is differentially discussed. In conclusion a hypothetic model for the implication of actual findings in everyday clinical practice is proposed. In this context personalized treatment could be used to tailor treatment to specific individuals according to their clinical endophenotypes. Moreover a potential target for the development of novel intervention strategies might be used. PMID- 29041002 TI - Astragaloside IV Induced miR-134 Expression Reduces EMT and Increases Chemotherapeutic Sensitivity by Suppressing CREB1 Signaling in Colorectal Cancer Cell Line SW-480. AB - BACKGROUND: Colorectal cancer (CRC) is one of the leading causes of cancer related deaths worldwide. Although chemotherapy is the primary means in colorectal cancer treatment, it is burdenerd by adverse drug effects. Drug resistance is one of the most important challenges for chemotherapy and epithelial-mesenchymal transition (EMT) plays critical role in the development of drug resistance. AIMS: The aim of this study was to investigate the mechanisms underlying the effect of astragaloside IV (AS-IV) on miR-134 expression, EMT and chemotherapeutic sensitivity in CRC. METHODS: Cell proliferation, transfection assay, western blot, real-time PCR, cell migration and invasion assay and luciferase reporter assay were used to detect the effects of AS-IV on CRC. RESULTS: AS-IV significantly inhibited CRC cell migration and invasion by inducing miR-134 expression. Moreover, AS-IV and miR-134 increased the sensitivity of CRC tumors to oxaliplatin (OXA) chemotherapy. cAMP responsive element-binding protein 1 (CREB1), which was required for CRC cells migration, invasion and drug sensitivity, was significantly down-regulated by AS-IV. CONCLUSIONS: Our results indicated that AS-IV inhibited CRC EMT by inducing miR 134 expression which significantly down-regulated the CREB1 signaling pathway, and therefore increased the sensitivity to chemotherapy. Our findings provided new insight into the mechanisms of chemotherapy-resistant CRC, and may open new therapeutic options in the treatment of this devastating disease. PMID- 29041004 TI - Impact of Beta-Blockade on Cardiac Events in Patients with Chronic Severe Nonischemic Mitral Regurgitation. AB - OBJECTIVES: The aim of this study was to examine the impact of beta-blockade on cardiac events among patients with initially asymptomatic chronic severe nonischemic mitral valve regurgitation (MR). METHODS: Data from 52 consecutive patients in our prospective natural history study of isolated chronic severe nonischemic MR were assessed post hoc over 19 years to examine the relation of chronic beta-blockade use to subsequent cardiac events (death or indications for mitral valve surgery, MVS). At entry, all patients were free of surgical indications; 9 received beta-blockers. Cardiac event rate differences were analyzed by Kaplan-Meier log rank comparison. RESULTS: During follow-up, cardiac events included sudden death (1), heart failure (8), atrial fibrillation (6), left ventricular dimensions at systole >=4.5 cm (11), left ventricular ejection fraction <60% (6), right ventricular ejection fraction <35% (2), and a combination of cardiac events (7). The cardiac event risk was 4-fold higher among patients receiving beta-blockers (average annual risk = 60.6%) versus those not receiving beta-blockers (average annual risk = 15.2%; p = 0.001). These effects remained statistically significant (p = 0.005) when analysis was adjusted for other baseline covariates. CONCLUSIONS: Beta-blockade appears to confer an increased risk of sudden cardiac death or indications for MVS among patients with chronic severe nonischemic MR. Randomized trials are needed to confirm these findings. PMID- 29041006 TI - Deciphering the Social Organization and Structure of Wild Yunnan Snub-Nosed Monkeys (Rhinopithecus bieti). AB - The social organization of natural groups of Rhinopithecus bieti (Yunnan snub nosed monkey) is virtually unknown. We studied the demography and social structure of a free-ranging group at Samage Forest, China, for nearly 2 years. This study confirmed that R. bieti exhibits a multilevel social organization of core 1-male units (OMUs) that congregate in a band of >400 members. Even though the band appeared to be unified for the most part, we also witnessed occasional fission-fusion. OMUs were cohesive entities, and their members were spatially and socially isolated from members of other OMUs. Large all-male units associated with the band, and when they closely followed OMUs there was a tendency for elevated male aggression. Within OMUs, females associated preferentially with males and vice versa, resulting in a bisexually bonded society. Contrary to other Asian colobines, R. bieti were comparatively social, with grooming occupying 7.3% of the time. Social grooming was primarily a female affair, but males also participated in grooming networks. The integration of males into the social network of the OMU is thought to help to maintain OMU integrity and cohesion with other social units being in close proximity. PMID- 29041005 TI - Cardiogenic Shock during First Infusion of Anthracycline Chemotherapy in a Patient with Hodgkin Lymphoma: An Unusual Event. AB - INTRODUCTION: Hodgkin lymphoma (HL) is one of the most common types of cancers of the lymphatic system. The currently available therapies enable a cure in approximately 80-85% of treated patients. However, the cardiotoxicity of HL treatment has become a major cause of morbidity and mortality in survivors mainly related to the use of anthracycline. CASE REPORT: An HL, staged IIIB, was diagnosed in a 60-year-old man with no cardiovascular disease. During the first cycle of ABVD chemotherapy (Adriamycin; bleomycin; vinblastine; dacarbazine), near the end of the dacarbazine infusion, the patient presented a sudden cardiogenic shock characterized by a severe left ventricular systolic dysfunction. Laboratory and instrumental examinations performed did not suggest any specific etiology. After 15 days of medical support, the patient presented a complete cardiac function and clinical recovery. Subsequently bendamustine chemotherapy was started because of its limited extrahematological toxicity, but after 4 cycles the patient had progressive disease and died of septic shock. We concluded that a very rare hyperacute anthracycline cardiotoxicity was the most likely reason for this critical scenario. CONCLUSIONS: This rare event stresses our inability to correctly predict the risk of a patient developing cardiotoxicity and also highlights the need to improve the knowledge of underlying pathophysiological mechanisms; in fact, it suggests a possible genetic predisposition to develop cardiotoxicity due to a relatively limited dosage. PMID- 29041007 TI - The Utilization Paradox. PMID- 29041008 TI - Increase of Substance P Concentration in Saliva after Pharyngeal Electrical Stimulation in Severely Dysphagic Stroke Patients - an Indicator of Decannulation Success? AB - BACKGROUND/AIMS: Substance P (SP) is a neuropeptide, likely acting as a neurotransmitter in the pharyngeal mucosa enhancing the swallow and cough reflex. Pharyngeal Electrical Stimulation (PES) induces a temporary increase of salivary SP levels in healthy adults. Previous evidence suggests that post-stroke dysphagia is related to reduced SP levels. Here, we investigated the effects of PES on SP levels in severely dysphagic stroke patients and a possible link between increase of SP and treatment success. METHODS: 23 tracheotomized stroke patients who could not be decannulated due to severe and persisting dysphagia according to endoscopic evaluation received PES for 10 minutes a day over three consecutive days in this prospective single-center study. If initial treatment failed, repetitive stimulation cycles were provided. Saliva samples were collected before and directly after each PES. RESULTS: 61% of participants were decannulated after the first treatment cycle. Increase of SP levels post stimulation was closely related to treatment success, i.e. decannulation with 79% of successfully treated patients showing increase of SP, whereas 89% of unsuccessfully treated patients had stable or decreased SP levels. Applying logistic regression analysis, increase of SP level remained the only independent predictor of decannulation after PES. All 3 repetitively treated patients showed increased SP levels when progressing from the 1st to the 2nd cycle, two of whom were decannulated hereafter. CONCLUSIONS: The physiological mechanism of PES may consist in restoration of sensory feedback, which is known to be crucial for the execution of a safe swallow. SP possibly acts as a biomarker for indicating response to PES. PMID- 29041009 TI - FCGR2A and FCGR3A Genotypes Correlate with Farletuzumab Response in Patients with First-Relapsed Ovarian Cancer Exhibiting Low CA125. AB - Farletuzumab is a humanized monoclonal antibody that binds to folate receptor alpha and elicits an anti-tumor response via immune effector activity. Recent studies from a global phase 3 trial in ovarian cancer patients treated with carboplatin/taxane plus farletuzumab found that the tumor-produced CA125 protein can suppress farletuzumab function via perturbing its engagement to the activating Fc-gamma receptors CD32a (FCGR2A) and CD16a (FCGR3A). Previous reports have indicated that naturally occurring polymorphisms in both of these receptors may play a role in their ability to engage therapeutic antibodies and elicit an optimal immune response via antibody-dependent cellular cytotoxicity (ADCC). In light of the importance of farletuzumab ADCC function for optimal tumor cell killing, we evaluated the frequency of FCGR2A-131H/R and FCGR3A-158V/F polymorphisms in 461 consenting patients from this global clinical study and their association with clinical outcome to placebo versus farletuzumab treatment. Here, we show that farletuzumab has enhanced binding to FCGR3A-158V high-affinity receptor and has an enhanced clinical outcome in patients with low baseline CA125 levels and at least 1 high-affinity allele of FCGR2A or FCGR3A. PMID- 29041010 TI - A Comparative Study of Four Methods for the Detection of Nematode Eggs and Large Protozoan Cysts in Mandrill Faecal Material. AB - Coproscopical methods like sedimentation and flotation techniques are widely used in the field for studying simian gastrointestinal parasites. Four parasites of known zoonotic potential were studied in a free-ranging, non-provisioned population of mandrills (Mandrillus sphinx): 2 nematodes (Necatoramericanus/Oesophagostomum sp. complex and Strongyloides sp.) and 2 protozoan species (Balantidium coli and Entamoeba coli). Different coproscopical techniques are available but they are rarely compared to evaluate their efficiency to retrieve parasites. In this study 4 different field-friendly methods were compared. A sedimentation method and 3 different McMaster methods (using sugar, salt, and zinc sulphate solutions) were performed on 47 faecal samples collected from different individuals of both sexes and all ages. First, we show that McMaster flotation methods are appropriate to detect and thus quantify large protozoan cysts. Second, zinc sulphate McMaster flotation allows the retrieval of a higher number of parasite taxa compared to the other 3 methods. This method further shows the highest probability to detect each of the studied parasite taxa. Altogether our results show that zinc sulphate McMaster flotation appears to be the best technique to use when studying nematodes and large protozoa. PMID- 29041011 TI - Hemodiafiltration Reduces All-Cause and Cardiovascular Mortality in Incident Hemodialysis Patients: A Propensity-Matched Cohort Study. AB - BACKGROUND: The majority of studies suggesting that online hemodiafiltration reduces the risk of mortality compared to hemodialysis (HD) have been performed in dialysis-prevalent populations. In this report, we conducted an epidemiologic study of mortality in incident dialysis patients, comparing post-dilution online hemodiafiltration and high-flux HD, with propensity score matching (PSM) used to correct indication bias. METHODS: Our study cohort comprised 3,075 incident dialysis patients treated in 64 Spanish Fresenius Medical Care clinics between January 2009 and December 2012. The primary outcome of this study was to investigate the impact of the type of renal replacement on all-cause mortality. An analysis of cardiovascular mortality was defined as the secondary outcome. To achieve these objectives, patients were followed until December 2016. Patients were categorized as high-flux HD patients if they underwent this treatment exclusively. If >90% of their treatment was with online hemodiafiltration, then the patient was grouped to that modality. RESULTS: After PSM, a total of 1,012 patients were matched. Compared with patients on high-flux HD, those on online hemodiafiltration received a median replacement volume of 23.45 (interquartile range 21.27-25.51) L/session and manifested 24 and 33% reductions in all-cause and cardiovascular mortality (all-cause mortality hazards ratio [HR] 0.76, 95% CI 0.62-0.94 [p = 0.01]; and cardiovascular mortality HR 0.67, 95% CI 0.50-0.90 [p = 0.008]). CONCLUSIONS: This study shows that post-dilution online hemodiafiltration reduces all-cause and cardiovascular mortality compared to high flux HD in an incident HD population. PMID- 29041012 TI - Wilms' Tumor Gene 1 (WT1) Peptide Vaccine Therapy for Hematological Malignancies: From CTL Epitope Identification to Recent Progress in Clinical Studies Including a Cure-Oriented Strategy. AB - The identification of human Wilms' tumor gene 1 (WT1) protein-derived cytotoxic T lymphocyte (CTL) epitopes and the in vivo efficacy of WT1 peptide-based immunotherapy in a mouse model were reported in 2000. This successful basic research led to clinical studies of a WT1 peptide vaccine, and a positive impact on clinical response was first demonstrated in 2003 in the form of a reduction in blast cells of vaccine-treated patients with myelodysplastic syndromes (MDS). Since then, data on WT1 peptide vaccine-treated patients with immunological and/or clinical response have been accumulated. MDS and acute myeloid leukemia were the major target diseases to provide proof of concept for the therapeutic potential of the WT1 peptide vaccine. WT1 vaccination-induced clinical responses or usefulness were also shown for chronic myeloid leukemia, multiple myeloma, and acute lymphoblastic leukemia, as well as various types of solid cancers. Non Hodgkin's lymphoma and myeloproliferative neoplasms may also be target diseases because of their WT1 expression. Of note, recent clinical studies have demonstrated that patients with hematological malignancies who have minimal residual disease after chemotherapy or allogeneic hematopoietic stem cell transplantation may be cured by WT1 peptide vaccination. Further enhancement of the efficacy and usefulness of the WT1 peptide vaccine is expected. PMID- 29041013 TI - Maternal Aneurysmal Subarachnoid Hemorrhage During Pregnancy as an Interdisciplinary Task. AB - Maternal aneurysmal subarachnoid hemorrhage (aSAH) during pregnancy presents a challenge regarding treatment and management. Due to the limited number of cases there are no treatment guidelines available. Thus, treatment is usually done on a case-by-case basis. Here we report on four cases of aSAH during pregnancy, describing the different management strategies and suggesting a possible treatment algorithm. Patients treated between 2003 and 2013 in our center were included in this retrospective study. Clinical data focused on time management concerning gestation week (GW), microsurgical or endovascular treatment, and outcome of the patients and the fetuses. Results were compared to the present literature on this issue. Mean age was 30.8 years, initial Hunt & Hess (H&H) grade ranged from III to V. All patients suffered from aSAH during the 3rd trimester of pregnancy. In the four cases, two emergency Caesarean sections (CS) were performed. Two aneurysms were occluded by microsurgical clipping and one was treated endovascularly. One patient died before definitive treatment of the aneurysm could be achieved, whereas fetal mortality was 0%. The mean follow-up was 83 months. aSAH during pregnancy needs individualized interdisciplinary management. Efforts must focus on the mother so that a delay in the best available treatment for the pregnant patient is avoided. Therefore treatment modality should be primarily determined by the aneurysm itself. However, timing in terms of delivery of the fetus and aneurysm treatment is a crucial point. PMID- 29041014 TI - Colon inflammatory fibroid polyp in a patient with von Recklinghausen's disease: endoscopic aspect with narrow-band imaging and magnification. PMID- 29041015 TI - Therapeutic application of linked color imaging for colorectal endoscopic mucosal resection. PMID- 29041016 TI - Removal of large colorectal lesions resected by endoscopic submucosal dissection using a laparoscopic bag. PMID- 29041017 TI - Single-session EUS-guided hepaticogastrostomy and dual-scope gastroenterostomy: a modified technique for palliative double endoscopic biliary and gastric bypass. PMID- 29041018 TI - Can a modified esophageal stent be useful in the treatment of nonresponsive benign colonic anastomotic stenosis? PMID- 29041019 TI - Endoscopic sleeve gastroplasty using Apollo Overstitch as a bridging procedure for superobese and high risk patients. PMID- 29041020 TI - [Pilot study on the effects and benefits of autologous fat grafting in osteoarthritis of the CMC-1 joint compared to intraarticular cortisone injection: results after 3 months]. AB - Background/Aim Preliminary data suggest that an intraarticular autologous fat transplant may be useful in osteoarthritis (OA) of the CMC-1 joint. This prospective, non-randomised pilot study investigates this new method with a view to clinical outcomes compared with intraarticular corticosteroid injection. Patients and Methods 17 women and 7 men with an average age of 63.3 (47-75) years with symptomatic OA were included in the study. In 12 patients, a radiologically guided injection of 1-1.5 ml of adipose tissue was carried out after transumbilical liposuction of 10 ml of abdominal fat. Prior to that, the fat was homogenised using two Luer-Lock Syringes, but not centrifuged. Postoperatively, the thumb was immobilised for one week. The patients from the cortisone control group received an intraarticular injection of 10 mg (1 ml) of Triamcinolon(r) under sterile conditions without subsequent immobilisation. Preoperatively as well as 2, 6 and 12 weeks postoperatively, the QuickDASH and the Michigan-Hand Questionnaire (MHQ) were analysed, the pain was measured by means of the visual analogue scale (VAS), and strength and grip force were measured. Results Both the cortisone group and the autologous fat group showed a significant reduction in stress pain after two weeks. Both methods had no significant effect on force. The evaluation of quality of life by means of QuickDASH and MHQ after cortisone treatment initially demonstrated an improvement in quality of life, which, however, fell below the previous level after 6 weeks. After autologous fat transplantation, quality of life increased continuously. Conclusion In contrast to cortisone injection treatment, a persistent pain reduction was achieved in the fat injection group in the 3-month follow-up period, whereas cortisone injection only resulted in a short-term reduction of pain lasting about 6 weeks. Long-term follow-up is required now to show how long the effect of autologous fat transplantation in OA can be sustained. PMID- 29041021 TI - A comparison of outcomes of carpal tunnel release for carpal tunnel syndrome in patients diagnosed with and without electrophysiological studies. AB - Records were analysed from the institutional database, including 943 patients (1089 hands) with CTS who were operated on in the authors' department over a period of four years (2012 to 2015). The diagnosis of CTS was made solely on the basis of clinical findings in 551 patients (58 %); 392 patients (42 %) also had electrodiagnostic tests performed, for various reasons. Patients were followed-up at 1 and 6 months with assessments that included the Levine scores, filament tests, grip and pinch strength. No significant differences in Levine scores were found at the 1 and 6 month assessments. Statistically significant differences were noted in 3-point pinch strength and sensation: however, these were not clinically meaningful. The results of the study show that the results of carpal tunnel release in patients with typical symptoms are no better after electrodiagnostic tests. PMID- 29041022 TI - Multiple glomus tumours in multidigit nail bed. AB - Glomus tumours are lesions of the glomus body. A solitary glomus tumour is a more common, characteristically painful lesion, frequently located under the nail, whereas multiple glomus tumours are a rare clinical and genetic entity. Multiple glomus tumours are rarely subungual and do not show preference for any particular region of the body. We report a rare case of painful multidigit subungual glomus tumours in both hands.A 34-year-old male patient complained of painful fingertips (right: thumb, index finger, long finger, and ring finger; left: thumb, long finger, ring finger, small finger) on both hands for more than 5 years. Magnetic resonance imaging (MRI) detected multiple subungual glomus tumours in the fingertips (right long finger, ring finger, and left thumb, long, ring, and small finger) of both his hands, so the authors conducted tumour resection and sent biopsies for relevant fingers. We found the glomus tumour underneath the nail bed and achieved final diagnosis with histological confirmation. No remnant or newly developed lesion was detected at the 1 year outpatient clinic.Our case differed from the usual multiple glomus tumours because its characteristics were similar to those of a solitary glomus tumour, including the classic symptom triad: severe pain, localised pain, and cold hypersensitivity. In case report, we suggest the possibility that multidigit subungual glomus tumour is different from the common single subungual glomus tumour. PMID- 29041023 TI - [Bilateral, giant schwannoma of the ulnar nerve in a case of schwannomatosis]. PMID- 29041024 TI - [Scar contracture with hyperextension in the wrist due to extravasation in the childhood - two-stage scar correction with the dermal regeneration template (Integra(r)) and skin graft]. PMID- 29041025 TI - [Unsuccessful thumb replantation distal of an arteriovenous fistula]. PMID- 29041026 TI - [Toxic Shock Syndrome caused by Fingertip Injury Management with semi-occlusive Dressing]. PMID- 29041027 TI - [Late sequelae of a stab injury in the forearm with incorporation of a foreign body]. PMID- 29041028 TI - [A rarity in handsurgery treatment: The injury of the hand by weever fish]. PMID- 29041029 TI - ? PMID- 29041030 TI - ? PMID- 29041031 TI - Preliminary Experience with a Novel System of Facet Fixation to Treat Patients with Lumbar Degenerative Disease. A New Perspective in Minimally Invasive Spine Surgery? AB - PURPOSE: We report our experience with a novel surgical device for the treatment of lumbar degenerative microinstability. Facet Wedge (DePuy Synthes, Raynham, Massachusetts, United States) is a novel technique of intra-articular lumbar facet fixation that provides a minimally invasive alternative to standard posterior fixation. MATERIALS AND METHODS: From November 2014 to July 2015, 38 patients underwent single-level Facet Wedge implantation. The main surgical indications included herniated disk (18 patients), spinal canal and foraminal stenosis (14 patients), and Meyerding grade I degenerative spondylolisthesis (6 patients). All the patients showed radiologic signs of microinstability: hyperintensity in both facet joints (facet fluid signal) in T2-weighted magnetic resonance imaging and a black disk as a sign of degenerative disease. No slippage was evident at dynamic radiograph. After a period of conservative treatment (minimum of 6 months), surgery was performed. All patients' follow-up lasted over at least 12 months. RESULTS: The low back visual analog scale score decreased significantly after surgery (from an average of 8.2 to 3.1 at final follow-up). Postoperatively, the Oswestry Disability Index showed a significant reduction (14.7 on average). No slippage or signs of adjacent segment degeneration was detected in neuroimaging follow-up. CONCLUSION: Facet Wedge allows facet fixation in lumbar degenerative microinstability. To the best of our knowledge, this is the first clinical series reported in the literature on this novel device. PMID- 29041032 TI - Assessing the Structural Footprint of Minimally Invasive Brain Cannulation on Cerebral White Matter: A Cadaveric Model. AB - BACKGROUND: All brain surgery requires some degree of iatrogenic trauma to healthy tissue. Minimally invasive approaches to brain tumors offer the potential of decreasing this trauma compared with conventional approaches. However, there are no validated radiologic models to examine axonal damage after minimally invasive entry into the brain. OBJECTIVE: To present a cadaveric model of brain cannulation using fractional anisotropy measurements obtained from diffusion tensor magnetic resonance imaging (MRI). Two different methods of access are compared. METHODS: Freshly harvested unfixed cadaveric brains were cannulated using both direct and indirect (i.e., dilation followed by cannulation) methods. Specimens were subjected to 68-direction diffusion tensor imaging scans and proton-density imaging. Fractional anisotropy (FA) data from a region of interest surrounding the entry zone was extracted from scans using imaging software and analyzed. RESULTS: FA values were significantly higher following indirect cannulation (less invasive method) than they were following direct cannulation. FA values for undisturbed brain were significantly higher than in either of the cannulated groups, suggesting an inverse relationship between FA values and brain injury. CONCLUSION: Axonal damage following brain cannulation can potentially be evaluated by FA analysis in a cadaveric model. These data may lead to an MRI based model of iatrogenic brain injury following tumor surgery. Future studies will focus on histologic analysis and clinical validation in live tissues. PMID- 29041033 TI - Portopulmonary Hypertension. PMID- 29041035 TI - Atmospheric extinction coefficient retrieval and validation for the single-band Mie-scattering Scheimpflug lidar technique. AB - An 808 nm single-band Mie scattering Scheimpflug lidar system is developed in Dalian, Northern China, for real-time, large-area atmospheric aerosol/particle remote sensing. Atmospheric measurement has been performed in urban area during a typical haze weather condition, and time-range distribution of atmospheric backscattering signal is recorded from March 18th to 22nd, 2017, by employing the Scheimpflug lidar system. Atmospheric extinction coefficient is then retrieved according to the Klett-inversion algorithm, while the boundary value is obtained by the slope-method in the far end where the atmosphere is homogeneous in a subinterval region. The correlation between the extinction coefficients retrieved from the Scheimpflug lidar technique and the PM10/PM2.5 concentrations measured by a conventional air pollution monitoring station is also studied. The good agreement between the measurement results, i.e., a correlation coefficient of 0.85, successfully demonstrates the feasibility and great potential of the Scheimpflug lidar technique for atmospheric studies and applications. PMID- 29041034 TI - Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low birth weight preterm neonates. AB - BACKGROUND: Bronchopulmonary dysplasia (BPD) remains an important cause of mortality and morbidity in preterm infants and inflammation plays a significant role in its pathogenesis. The use of inhaled corticosteroids may modulate the inflammatory process without concomitant high systemic steroid concentrations and less risk of adverse effects. This is an update of a review published in 2012 (Shah 2012). We recently updated the related review on "Inhaled versus systemic corticosteroids for treating bronchopulmonary dysplasia in ventilated very low birth weight preterm neonates". OBJECTIVES: To determine the effect of inhaled versus systemic corticosteroids started within the first 7 days of life on preventing death or BPD in ventilated very low birth weight infants. SEARCH METHODS: We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL 2017, Issue 1), MEDLINE via PubMed (1966 to 23 February 2017), Embase (1980 to 23 February 2017), and CINAHL (1982 to 23 February 2017). We searched clinical trials registers, conference proceedings and the reference lists of retrieved articles for randomised controlled trials (RCTs) and quasi-randomised trials. SELECTION CRITERIA: Randomised or quasi-randomised controlled trials comparing inhaled versus systemic corticosteroid therapy (irrespective of dose and duration) starting in the first seven days of life in very low birth weight preterm infants receiving assisted ventilation. DATA COLLECTION AND ANALYSIS: Clinical outcomes data were extracted and analysed using Review Manager. When appropriate, meta analysis was performed using typical relative risk (RR), typical risk difference (RD) and weighted mean difference (WMD). Meta-analyses were performed using typical relative risk, typical risk difference (RD), and weighted mean difference with their 95% confidence intervals (CI). If RD was statistically significant, the number needed to benefit or the number needed to harm was calculated. We assessed the quality of evidence was evaluated using GRADE principles. MAIN RESULTS: We included two trials that involved 294 infants. No new studies were included for the 2017 update. The incidence of death or BPD at 36 weeks' postmenstrual age was not statistically significantly different between infants who received inhaled or systemic steroids (RR 1.09, 95% CI 0.88 to 1.35; RD 0.05, 95% CI -0.07 to 0.16; 1 trial, N = 278). The incidence of BPD at 36 weeks' postmenstrual age among survivors was not statistically significant between groups (RR 1.34, 95% CI 0.94 to 1.90; RD 0.11, 95% CI -0.02 to 0.24; 1 trial, N = 206). There was no statistically significant difference in the outcomes of BPD at 28 days, death at 28 days or 36 weeks' postmenstrual age and the combined outcome of death or BPD by 28 days between groups (2 trials, N = 294). The duration of mechanical ventilation was significantly longer in the inhaled steroid group compared with the systemic steroid group (typical MD 4 days, 95% CI 0.2 to 8; 2 trials, N = 294; I2 = 0%) as was the duration of supplemental oxygen (typical MD 11 days, 95% CI 2 to 20; 2 trials, N = 294; I2 = 33%).The incidence of hyperglycaemia was significantly lower with inhaled steroids (RR 0.52, 95% CI 0.39 to 0.71; RD -0.25, 95% CI -0.37 to -0.14; 1 trial, N = 278; NNTB 4, 95% CI 3 to 7 to avoid 1 infant experiencing hyperglycaemia). The rate of patent ductus arteriosus increased in the group receiving inhaled steroids (RR 1.64, 95% CI 1.23 to 2.17; RD 0.21, 95% CI 0.10 to 0.33; 1 trial, N = 278; NNTH 5, 95% CI 3 to 10). In a subset of surviving infants in the United Kingdom and Ireland there were no significant differences in developmental outcomes at 7 years of age. However, there was a reduced risk of having ever been diagnosed as asthmatic by 7 years of age in the inhaled steroid group compared with the systemic steroid group (N = 48) (RR 0.42, 95% CI 0.19 to 0.94; RD -0.31, 95% CI -0.58 to -0.05; NNTB 3, 95% CI 2 to 20).According to GRADE the quality of the evidence was moderate to low. Evidence was downgraded on the basis of design (risk of bias), consistency (heterogeneity) and precision of the estimates.Both studies received grant support and the industry provided aero chambers and metered dose inhalers of budesonide and placebo for the larger study. No conflict of interest was identified. AUTHORS' CONCLUSIONS: We found no evidence that early inhaled steroids confer important advantages over systemic steroids in the management of ventilator-dependent preterm infants. Based on this review inhaled steroids cannot be recommended over systemic steroids as a part of standard practice for ventilated preterm infants. Because they might have fewer adverse effects than systemic steroids, further randomised controlled trials of inhaled steroids are needed that address risk/benefit ratio of different delivery techniques, dosing schedules and long-term effects, with particular attention to neurodevelopmental outcome. PMID- 29041036 TI - Electrical determination of current injection and internal quantum efficiencies in AlGaN-based deep-ultraviolet light-emitting diodes. AB - We propose a method to determine the current injection efficiency (CIE) and internal quantum efficiency (IQE) of light-emitting diodes (LEDs) during current injection. The method is based on fourth-order polynomial fitting of a modified rate equation to electroluminescence data. Our method can extract the CIE at low injection current densities, unlike conventional methods that generally assume the CIE to be unity. We apply the method to AlGaN-based deep-ultraviolet LEDs. Results show that the CIE was only approximately 51% at low injection current densities and was almost independent of injection current density up to 100 A/cm2. The peak IQE was 77%. PMID- 29041037 TI - Fast yet accurate computation of radiances in shortwave infrared satellite remote sensing channels. AB - Accurate radiative transfer simulations of signals received by sensors deployed on satellite platforms for remote sensing purposes can be computationally demanding depending on channel width and the spectral variation of atmospheric and surface optical properties. Therefore, methods that can speed up such simulations are desirable. While it is common practice to use atmospheric "window" channels to minimize the influence of gaseous absorption, the impact of the underlying surface as well as clouds and aerosols has received less attention. To reduce the number of monochromatic computations required to obtain a desired accuracy, one may average the inherent optical properties (IOPs) over a spectral band to generate effective or mean IOP values to be used in "quasi monochromatic" radiative transfer computations. Comparison of radiances produced by computations based on mean (quasi-monochromatic) IOPs with benchmark results in typical shortwave infrared window channels, revealed that while this approach may be sufficient for gaseous absorption, it led to significant errors in the presence spectrally varying surface IOPs, in general, and snow/ice surfaces, in particular. To solve this problem, a new method was developed in which a satellite channel is represented by a few subbands. This new method significantly reduces the error resulting from IOP averaging to be typically less than 1%. An additional correction was also developed to further reduce the error incurred by use of mean gas IOPs for large solar zenith angles to be less than 0.01%. PMID- 29041038 TI - Optical analysis of a III-V-nanowire-array-on-Si dual junction solar cell. AB - A tandem solar cell consisting of a III-V nanowire subcell on top of a planar Si subcell is a promising candidate for next generation photovoltaics due to the potential for high efficiency. However, for success with such applications, the geometry of the system must be optimized for absorption of sunlight. Here, we consider this absorption through optics modeling. Similarly, as for a bulk dual junction tandem system on a silicon bottom cell, a bandgap of approximately 1.7 eV is optimum for the nanowire top cell. First, we consider a simplified system of bare, uncoated III-V nanowires on the silicon substrate and optimize the absorption in the nanowires. We find that an optimum absorption in 2000 nm long nanowires is reached for a dense array of approximately 15 nanowires per square micrometer. However, when we coat such an array with a conformal indium tin oxide (ITO) top contact layer, a substantial absorption loss occurs in the ITO. This ITO could absorb 37% of the low energy photons intended for the silicon subcell. By moving to a design with a 50 nm thick, planarized ITO top layer, we can reduce this ITO absorption to 5%. However, such a planarized design introduces additional reflection losses. We show that these reflection losses can be reduced with a 100 nm thick SiO2 anti-reflection coating on top of the ITO layer. When we at the same time include a Si3N4 layer with a thickness of 90 nm on the silicon surface between the nanowires, we can reduce the average reflection loss of the silicon cell from 17% to 4%. Finally, we show that different approximate models for the absorption in the silicon substrate can lead to a 15% variation in the estimated photocurrent density in the silicon subcell. PMID- 29041039 TI - Direct-comb molecular spectroscopy by heterodyne detection with continuous-wave laser for high sensitivity. AB - We have demonstrated direct-comb molecular spectroscopy in which an individual comb mode is resolved by heterodyne detection with a continuous-wave (cw) laser. This simple, fast, and sensitive technique was demonstrated for atomic spectroscopy in [ Appl. Phys. Lett.101, 051105 ( 2012)], but is more suitable for molecular spectroscopy. Four rotation-vibration transitions of methane have simultaneously been recorded in a Doppler-limited resolution using a spectrally broadened comb based on an Er-doped fiber laser and a cw 1651-nm distributed feedback laser diode. Even though the power level of the comb modes and the sample absorption are weaker than those of the previous studies, in this work the cw laser frequency is stabilized to one of the comb modes, and the data are thereby averaged for extended periods of time, resulting an improvement in sensitivity. PMID- 29041040 TI - Water-leaving contribution to polarized radiation field over ocean. AB - The top-of-atmosphere (TOA) radiation field from a coupled atmosphere-ocean system (CAOS) includes contributions from the atmosphere, surface, and water body. Atmospheric correction of ocean color imagery is to retrieve water-leaving radiance from the TOA measurement, from which ocean bio-optical properties can be obtained. Knowledge of the absolute and relative magnitudes of water-leaving signal in the TOA radiation field is important for designing new atmospheric correction algorithms and developing retrieval algorithms for new ocean biogeochemical parameters. In this paper we present a systematic sensitivity study of water-leaving contribution to the TOA radiation field, from 340 nm to 865 nm, with polarization included. Ocean water inherent optical properties are derived from bio-optical models for two kinds of waters, one dominated by phytoplankton (PDW) and the other by non-algae particles (NDW). In addition to elastic scattering, Raman scattering and fluorescence from dissolved organic matter in ocean waters are included. Our sensitivity study shows that the polarized reflectance is minimized for both CAOS and ocean signals in the backscattering half plane, which leads to numerical instability when calculating water leaving relative contribution, the ratio between polarized water leaving and CAOS signals. If the backscattering plane is excluded, the water-leaving polarized signal contributes less than 9% to the TOA polarized reflectance for PDW in the whole spectra. For NDW, the polarized water leaving contribution can be as much as 20% in the wavelength range from 470 to 670 nm. For wavelengths shorter than 452 nm or longer than 865 nm, the water leaving contribution to the TOA polarized reflectance is in general smaller than 5% for NDW. For the TOA total reflectance, the water-leaving contribution has maximum values ranging from 7% to 16% at variable wavelengths from 400 nm to 550 nm from PDW. The water leaving contribution to the TOA total reflectance can be as large as 35% for NDW, which is in general peaked at 550 nm. Both the total and polarized reflectances from water-leaving contributions approach zero in the ultraviolet and near infrared bands. These facts can be used as constraints or guidelines when estimating the water leaving contribution to the TOA reflectance for new atmospheric correction algorithms for ocean color imagery. PMID- 29041041 TI - Frequency response of the external quantum efficiency in multijunction solar cells. AB - The frequency dependence of the external quantum efficiency (EQE) of high-quality multijunction solar cells was examined by the modulated photocurrent spectroscopy method via an optical setup comprised of a light-pipe-coupled compact LED array. The optical excitation was achieved through sinusoidal electrical modulation of an appropriate LED by a custom-designed, high bandwidth amplifier. We observed unique features in the amplitude and phase data of the EQE frequency sweeps that are very sensitive to various subcell parameters and light bias conditions. These features are discussed extensively within the context of an AC equivalent circuit model, showing remarkable agreement between the experimental data and the proposed model. PMID- 29041042 TI - Responses transition in a monolayer Al-Al2O3 nanoparticle-crystal due to oxidation. AB - Nanoparticle is a promising candidate for large scale fabrication of metamaterial. However, optical responses for metamaterial made of abound metal like Al can be thoroughly changed due to oxidization. Especially for nanoparticle whose aspect ratio is extremely high, oxidation usually occurs. So to understand how the responses shift in a nanoparticle system due to oxidization is essential for large scale application of metamaterial. In this paper, we have concluded and quantified two general principles describing this transition in a monolayer Al Al2O3 nanoparticle-crystal, which can be used in a thermophotovoltaic system. Square pattern, in which the unit of changing crystal is a square cell made up of Al and Al2O3 particles, is firstly demonstrated. A double oscillators model has been proposed to understand the interference between different absorption modes and their coupling. Using near-field distribution, equivalent inductor-capacitor model and dispersion relationship of surface Plasmon polariton, we have distinguished the resonance modes, concluded the transition principles in a simple case. Then the two principles are applied in a larger cell to verify its university. After detailed demonstration of symmetric square pattern, models and principles are extrapolated to more complex non-symmetric systems. The basic understanding gained here will help the design of robust large-scale metamaterial. PMID- 29041043 TI - Validation of a spectral correction procedure for sun and sky reflections in above-water reflectance measurements. AB - A three-component reflectance model (3C) is applied to above-water radiometric measurements to derive remote-sensing reflectance Rrs (lambda). 3C provides a spectrally resolved offset Delta(lambda) to correct for residual sun and sky radiance (Rayleigh- and aerosol-scattered) reflections on the water surface that were not represented by sky radiance measurements. 3C is validated with a data set of matching above- and below-water radiometric measurements collected in the Baltic Sea, and compared against a scalar offset correction Delta. Correction with Delta(lambda) instead of Delta consistently reduced the (mean normalized root-mean-square) deviation between Rrs (lambda) and reference reflectances to comparable levels for clear (Delta: 14.3 +/- 2.5 %, Delta(lambda): 8.2 +/- 1.7 %), partly clouded (Delta: 15.4 +/- 2.1 %, Delta(lambda): 6.5 +/- 1.4 %), and completely overcast (Delta: 10.8 +/- 1.7 %, Delta(lambda): 6.3 +/- 1.8 %) sky conditions. The improvement was most pronounced under inhomogeneous sky conditions when measurements of sky radiance tend to be less representative of surface-reflected radiance. Accounting for both sun glint and sky reflections also relaxes constraints on measurement geometry, which was demonstrated based on a semi-continuous daytime data set recorded in a eutrophic freshwater lake in the Netherlands. Rrs (lambda) that were derived throughout the day varied spectrally by less than 2 % relative standard deviation. Implications on measurement protocols are discussed. An open source software library for processing reflectance measurements was developed and is made publicly available. PMID- 29041044 TI - Novel method for quantitative and real-time measurements on engine combustion at varying pressure based on the wavelength modulation spectroscopy. AB - The wavelength modulation spectroscopy (WMS) technique has been demonstrated as a powerful and indispensable tool for quantitative and real-time measurements on the combustion process of various industrial devices. However, the varying pressure occurred in the aero-engine combustor significantly affects the accuracy and efficiency of the WMS technique. To address this issue, this work reports a novel method named WMS pressure correction model, which can enable fast signal processing in the measurements at varying pressure. The method was first validated in a heated optical cell, and then applied to the pressure and temperature measurements in an aero-engine combustor. The results show that the new method can efficiently and accurately measure the pressure and temperature at the varying pressure conditions. PMID- 29041045 TI - Monolithic stacked blue light-emitting diodes with polarization-enhanced tunnel junctions. AB - Monolithic stacked InGaN light-emitting diode (LED) connected by a polarization enhanced GaN/AlN-based tunnel junction is demonstrated experimentally in this study. The typical stacked LEDs exhibit 80% enhancement in output power compared with conventional single LEDs because of the repeated use of electrons and holes for photon generation. The typical operation voltage of stacked LEDs is higher than twice the operation voltage of single LEDs. This high operation voltage can be attributed to the non-optimal tunneling junction in stacked LEDs. In addition to the analyses of experimental results, theoretical analysis of different schemes of tunnel junctions, including diagrams of energy bands, diagrams of electric fields, and current-voltage relation curves, are investigated using numerical simulation. The results shown in this paper demonstrate the feasibility in developing cost-effective and highly efficient tunnel-junction LEDs. PMID- 29041046 TI - Determining the optimal spectral sampling frequency and uncertainty thresholds for hyperspectral remote sensing of ocean color. AB - Using a modified geostatistical technique, empirical variograms were constructed from the first derivative of several diverse Remote Sensing Reflectance and Phytoplankton Absorbance spectra to describe how data points are correlated with "distance" across the spectra. The maximum rate of information gain is measured as a function of the kurtosis associated with the Gaussian structure of the output, and is determined for discrete segments of spectra obtained from a variety of water types (turbid river filaments, coastal waters, shelf waters, a dense Microcystis bloom, and oligotrophic waters), as well as individual and mixed phytoplankton functional types (PFTs; diatoms, eustigmatophytes, cyanobacteria, coccolithophores). Results show that a continuous spectrum of 5 to 7 nm spectral resolution is optimal to resolve the variability across mixed reflectance and absorbance spectra. In addition, the impact of uncertainty on subsequent derivative analysis is assessed, showing that a 3% Gaussian noise (SNR ~66) addition compromises data quality without smoothing the spectrum, and a 13% noise (SNR ~15) addition compromises data with smoothing. PMID- 29041047 TI - Impact of spectral resolution of in situ ocean color radiometric data in satellite matchups analyses. AB - The spectral resolution requirements for in situ remote sensing reflectanceRRS measurements aiming at supporting satellite ocean color validation and System Vicarious Calibration (SVC) were investigated. The study, conducted using sample hyperspectral RRS from different water types, focused on the visible spectral bands of the ocean land color imager (OLCI) and of the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) satellite sensors. Allowing for a +/-0.5% maximum difference between in situ and satellite derived RRS solely due to the spectral band characteristics of the in situ radiometer, a spectral resolution of 1 nm for SVC of PACE is needed in oligotrophic waters. Requirements decrease to 3 nm for SVC of OLCI. In the case of validation activities, which exhibit less stringent uncertainty requirements with respect to SVC, a maximum difference of +/-1% between in situ and satellite derived data indicates the need for a spectral resolution of 3 nm for both OLCI and PACE in oligotrophic waters. Conversely, spectral resolutions of 6 nm for PACE and 9 nm for OLCI appear to satisfy validation activities in optically complex waters. PMID- 29041048 TI - Studying aerosol light scattering based on aspect ratio distribution observed by fluorescence microscope. AB - Particle shape is crucial to the properties of light scattered by atmospheric aerosol particles. A method of fluorescence microscopy direct observation was introduced to determine the aspect ratio distribution of aerosol particles. The result is comparable with that of the electron microscopic analysis. The measured aspect ratio distribution has been successfully applied in modeling light scattering and further in simulation of polarization measurements of the sun/sky radiometer. These efforts are expected to improve shape retrieval from skylight polarization by using directly measured aspect ratio distribution. PMID- 29041049 TI - Full-spectrum light management by pseudo-disordered moth-eye structures for thin film solar cells. AB - In this paper, the role of pseudo-disordered moth-eye structures on the optical features for application to thin-film solar cells is investigated to realize the superior light management for the full-spectrum solar energy utilization, compared with some ordered structures. Without loss of generality, the c-Si thin film solar cell is taken as the example. The results demonstrate that the fluctuations introduced into the geometry parameters of moth-eye elements can lead to the remarkable absorption enhancement in the wavelength region of 0.3-1.1 MUm and high transmission in the wavelength range of 1.1-2.5 MUm. Two mechanisms including the increasing spectral density of modes and the intensive forescattering intensity are identified to be responsible for the absorption enhancement. In addition, the optical characteristics of the moth-eye surface with both disordered height and disordered diameter are insensitive to the incident angle. PMID- 29041050 TI - Floating-base germanium-tin heterojunction phototransistor for high-efficiency photodetection in short-wave infrared range. AB - The floating-base germanium-tin (Ge1-xSnx) heterojunction phototransistor (HPT) is designed and investigated as an efficient optical receiver in the short-wave infrared range. Simulations indicate that as the Sn content increases, the responsivity significantly increases due to a higher absorption coefficient and a larger valence band offset between Ge and Ge1-xSnx. Ge0.935Sn0.065 HPTs that incorporated high-quality Ge0.935Sn0.065 film grown by molecular beam epitaxy were fabricated, demonstrating optical response beyond wavelength of 2003 nm. At a low bias voltage of 1.0 V, optical response enhancement of ~10 times was achieved over the conventional Ge0.935Sn0.065 p-i-n photodiode. High responsivities of ~1.8 A/W at 1550 nm and ~0.043 A/W at 2003 nm were demonstrated with low dark current density of 0.147 A/cm2. PMID- 29041051 TI - Systematic characterization and optimization of 3D light field displays. AB - One of the key issues in conventional stereoscopic displays is the well-known vergence-accommodation conflict problem due to the lack of the ability to render correct focus cues for 3D scenes. Recently several light field display methods have been explored to reconstruct a true 3D scene by sampling either the projections of the 3D scene at different depths or the directions of the light rays apparently emitted by the 3D scene and viewed from different eye positions. These methods are potentially capable of rendering correct or nearly correct focus cues and addressing the vergence-accommodation conflict problem. In this paper, we describe a generalized framework to model the image formation process of the existing light-field display methods and present a systematic method to simulate and characterize the retinal image and the accommodation response rendered by a light field display. We further employ this framework to investigate the trade-offs and guidelines for an optimal 3D light field display design. Our method is based on quantitatively evaluating the modulation transfer functions of the perceived retinal image of a light field display by accounting for the ocular factors of the human visual system. PMID- 29041052 TI - Thin-film camera using luminescent concentrators and an optical Soller collimator. AB - This article reports our investigation of the potential of optical Soller collimators in combination with luminescent concentrators for lens-less, short distance, and shape-independent thin-film imaging. We discuss optical imaging capabilities and limitations, and present first prototypes and results. Modern 3D laser lithography and deep X-ray lithography support the manufacturing of extremely fine collimator structures that pave the way for flexible and scalable thin-film cameras that are far thinner than 1 mm (including optical imaging and color sensor layers). PMID- 29041053 TI - Organic membrane photonic integrated circuits (OMPICs). AB - We propose the concept of organic membrane photonic integrated circuits (OMPICs), which incorporate various functions needed for optical signal processing into a flexible organic membrane. We describe the structure of several devices used within the proposed OMPICs (e.g., transmission lines, I/O couplers, phase shifters, photodetectors, modulators), and theoretically investigate their characteristics. We then present a method of fabricating the photonic devices monolithically in an organic membrane and demonstrate the operation of transmission lines and I/O couplers, the most basic elements of OMPICs. PMID- 29041054 TI - Failure prediction using machine learning and time series in optical network. AB - In this paper, we propose a performance monitoring and failure prediction method in optical networks based on machine learning. The primary algorithms of this method are the support vector machine (SVM) and double exponential smoothing (DES). With a focus on risk-aware models in optical networks, the proposed protection plan primarily investigates how to predict the risk of an equipment failure. To the best of our knowledge, this important problem has not yet been fully considered. Experimental results showed that the average prediction accuracy of our method was 95% when predicting the optical equipment failure state. This finding means that our method can forecast an equipment failure risk with high accuracy. Therefore, our proposed DES-SVM method can effectively improve traditional risk-aware models to protect services from possible failures and enhance the optical network stability. PMID- 29041055 TI - Fano resonances in plasmonic heptamer nano-hole arrays. AB - The optical properties of gold heptamer nanohole arrays have been investigated theoretically and numerically. This structure support pronounced Fano resonances with high transmittance (~50%) and narrow bandwidths (down to 12 nm). The Fano features arise from the interference between light directly transmitted through the holes, and light indirectly scattered through the excitation of localized surface plasmon polaritons (LSPPs), propagating surface plasmon polaritons (SPPs), or/and waves related to Wood's anomaly (WA). The mechanisms behind the generation of these resonances are revealed by observing near-field distributions, altering the structural parameters and applying the Bloch wave model. Furthermore, it is shown that Fano resonances associated with LSPPs exhibit high surface (2 nm/nm) and bulk sensitivities (400 nm/RIU). However, the highest figure of merit (~24 RIU-1) occurs for a Fano resonance involving a WA and SPP mode. PMID- 29041056 TI - Fault-tolerant distribution of GHZ states and controlled DSQC based on parity analyses. AB - Based on the circuit including linear optical elements, a fault-tolerant distribution of GHZ states against collective noise among three parties is proposed. Additionally, two controlled DSQC protocols using the shared GHZ states as quantum channels are also presented under the charge of the controller. The first controlled DSQC protocol applies single parity analysis based on weak cross Kerr nonlinearities. The receiver Bob performs single-photon measurement to obtain the secret information after the outcome publication of the single parity analysis executed by the sender Alice. The second protocol applies dense coding to double information transmission capacity, and the double parity analyses based on weak cross-Kerr nonlinearities are performed to obtain the secret information. PMID- 29041057 TI - Dual comb generation from a mode-locked fiber laser with orthogonally polarized interlaced pulses. AB - Ultra-high precision dual-comb spectroscopy traditionally requires two mode locked, fully stabilized lasers with complex feedback electronics. We present a novel mode-locked operation regime in a thulium-holmium co-doped fiber laser, a frequency-halved state with orthogonally polarized interlaced pulses, for dual comb generation from a single source. In a linear fiber laser cavity, an ultrafast pulse train composed of co-generated, equal intensity and orthogonally polarized consecutive pulses at half of the fundamental repetition rate is demonstrated based on vector solitons. Upon optical interference of the orthogonally polarized pulse trains, two stable microwave RF beat combs are formed, effectively down-converting the optical properties into the microwave regime. These co-generated, dual polarization interlaced pulse trains, from one all-fiber laser configuration with common mode suppression, thus provide an attractive compact source for dual-comb spectroscopy, optical metrology and polarization entanglement measurements. PMID- 29041058 TI - Enhancement of the second plateau in solid high-order harmonic spectra by the two color fields. AB - We theoretically investigate high-order harmonic generation (HHG) from solids in two-color fields. It is found that under the premise of maintaining the same amplitude, the intensity of the second plateau can be enhanced by two to three orders in a proper two-color field compared with the result in the monochromatic field with the same frequency as the driving pulse of the two-color field. This can be attributed to the fact that most excited electrons can be driven to the top of the first conduction band due to the larger vector potential of the two color fields, which leads to the higher electron population of upper conduction bands. Moreover, we also find that isolated attosecond pulses can be generated from solids by choosing a proper two-color field that allows the electrons to reach the top of the first conduction band only once. This work provides a promising method for extending the range of solid HHG spectra in experiments. PMID- 29041059 TI - Non-destructive analysis of flake properties in automotive paints with full-field optical coherence tomography and 3D segmentation. AB - Automotive coating systems are designed to protect vehicle bodies from corrosion and enhance their aesthetic value. The number, size and orientation of small metallic flakes in the base coat of the paint has a significant effect on the appearance of automotive bodies. It is important for quality assurance (QA) to be able to measure the properties of these small flakes, which are approximately 10MUm in radius, yet current QA techniques are limited to measuring layer thickness. We design and develop a time-domain (TD) full-field (FF) optical coherence tomography (OCT) system to scan automotive panels volumetrically, non destructively and without contact. We develop and integrate a segmentation method to automatically distinguish flakes and allow measurement of their properties. We test our integrated system on nine sections of five panels and demonstrate that this integrated approach can characterise small flakes in automotive coating systems in 3D, calculating the number, size and orientation accurately and consistently. This has the potential to significantly impact QA testing in the automotive industry. PMID- 29041060 TI - Optimizing single-mode collection from pointlike sources of single photons with adaptive optics. AB - The collection efficiency of light from a point-like emitter may be extremely poor due to aberrations induced by collection optics and the emission distribution of the source. Analyzing the aberrant wavefront (e.g., with a Shack Hartmann sensor) and correcting accordingly can be infeasible on the single photon level. We present a technique that uses a genetic algorithm to control a deformable mirror for correcting wavefront aberrations in single-photon signals from point emitters. We apply our technique to both a simulated point source and a real InAs quantum dot, achieving coupling increases of up to 50% and automatic reduction of system drift. PMID- 29041061 TI - Novel configuration for an enhanced and compact all-fiber Faraday rotator with matched birefringence. AB - We propose a novel configuration for an improved and compact all fiber Faraday rotator based on phase matching between the Faraday rotation and bend-induced birefringence. The device utilizes a coiled fiber within two electro-magnetic toroids, such that the fiber length required for getting the beat length is quite long and several rounds of fiber are needed. Analysis of the capabilities of the proposed device and its sensitivity to different parameters is presented. Faraday rotation of 13 degrees was experimentally measured in six meters of single mode silica fiber, with a magnetic field of about 0.06T at a wavelength of 1064nm. We show that phase matching between the two phenomena significantly improves the polarization rotation by a factor of 4-10. In addition, we demonstrate the ability to achieve higher rotation by using Fabry Perot resonator in low terbium doped glass. PMID- 29041062 TI - Studies on the sparsifying operator in compressive digital holography. AB - In compressive digital holography, we reconstruct sparse object wavefields from undersampled holograms by solving an l1-minimization problem. Applying wavelet transformations to the object wavefields produces the necessary sparse representations, but prior work clings to transformations with too few vanishing moments. We put several wavelet transformations belonging to different wavelet families to the test by evaluating their sparsifying properties, the number of hologram samples that are required to reconstruct the sparse wavefields perfectly, and the robustness of the reconstructions to additive noise and sparsity defects. In particular, we recommend the CDF 9/7 and 17/11 wavelet transformations, as well as their reverse counter-parts, because they yield sufficiently sparse representations for most accustomed wavefields in combination with robust reconstructions. These and other recommendations are procured from simulations and are validated using biased, noisy holograms. PMID- 29041063 TI - Efficient continuous wave and quasi-continuous wave operation of a 2.8 MUm Er:Lu2O3 ceramic laser. AB - We have demonstrated a highly efficient 2.8 MUm Er-doped Lu2O3 ceramic laser and investigated the lasing dynamics by time-resolved spectroscopy. During room temperature continuous wave operation, a slope efficiency of 22% was achieved with a high-quality transparent ceramic. To our knowledge, this is the highest slope efficiency obtained by an Er:Lu2O3 ceramic laser. In addition, an output peak power of 1.2 W was obtained during quasi-continuous wave operation. Time resolved spectroscopy showed that the emission wavelengths exhibited a red shift from 2715 to 2845 nm, which indicated that continuous wave operation may be possible at 2740 and 2845 nm. PMID- 29041064 TI - Signaling on the continuous spectrum of nonlinear optical fiber. AB - This paper studies different signaling techniques on the continuous spectrum (CS) of nonlinear optical fiber defined by nonlinear Fourier transform. Three different signaling techniques are proposed and analyzed based on the statistics of the noise added to CS after propagation along the nonlinear optical fiber. The proposed methods are compared in terms of error performance, distance reach, and complexity. Furthermore, the effect of chromatic dispersion on the data rate and noise in nonlinear spectral domain is investigated. It is demonstrated that, for a given sequence of CS symbols, an optimal bandwidth (or symbol rate) can be determined so that the temporal duration of the propagated signal at the end of the fiber is minimized. In effect, the required guard interval between the subsequently transmitted data packets in time is minimized and the effective data rate is significantly enhanced. Moreover, by selecting the proper signaling method and design criteria a distance reach of 7100 km is reported by only singling on CS at a rate of 9.6 Gbps. PMID- 29041065 TI - High-precision lateral distortion measurement and correction in coherence scanning interferometry using an arbitrary surface. AB - Lateral optical distortion is present in most optical imaging systems. In coherence scanning interferometry, distortion may cause field-dependent systematic errors in the measurement of surface topography. These errors become critical when high-precision surfaces, e.g. precision optics, are measured. Current calibration and correction methods for distortion require some form of calibration artefact that has a smooth local surface and a grid of high-precision manufactured features. Moreover, to ensure high accuracy and precision of the absolute and relative locations of the features of these artefacts, requires their positions to be determined using a traceable measuring instrument, e.g. a metrological atomic force microscope. Thus, the manufacturing and calibration processes for calibration artefacts are often expensive and complex. In this paper, we demonstrate for the first time the calibration and correction of optical distortion in a coherence scanning interferometer system by using an arbitrary surface that contains some deviations from flat and has some features (possibly just contamination), such that feature detection is possible. By using image processing and a self-calibration technique, a precision of a few nanometres is achieved for the distortion correction. An inexpensive metal surface, e.g. the surface of a coin, or a scratched and defected mirror, which can be easily found in a laboratory or workshop, may be used. The cost of the distortion correction with nanometre level precision is reduced to almost zero if the absolute scale is not required. Although an absolute scale is still needed to make the calibration traceable, the problem of obtaining the traceability is simplified as only a traceable measure of the distance between two arbitrary points is needed. Thus, the total cost of transferring the traceability may also be reduced significantly using the proposed method. PMID- 29041066 TI - All-fibre pseudo-slit reformatters. AB - We report two different types of all-fibre pseudo-slit reformatters made either by tapering bundles of single-mode fibres or by postprocessing a photonic crystal fibre. These devices convert the modes of a multimode core to the modes of a linear pseudo-slit output structure, achieving a diffraction limited pattern in one direction. PMID- 29041067 TI - Simple method for efficient reconfigurable optical vortex beam splitting. AB - In recent years, singular light beams with orbital angular momentum are one of the most striking examples of structured light that have been widely applied in modern science. The transition from the generation of a single vortex beam to the generation of multiple such beams progressed the development of singular optics. This paper presents a new efficient method of vortex laser beam splitting using a two-level pure-phase diffractive optical element. The proposed compact element, which can be easily implemented with a low-cost binary spatial light modulator or fabricated by electron beam lithography or photolithography, is a useful tool for the reconfigurable generation of multiple closed-packed vortex beams. Furthermore, the proposed splitter can efficiently operate in the wavelength range of approximately 8% of the central wavelength, thus providing an efficient method to generate optical vortex arrays with various potential applications in modern optics and photonics. PMID- 29041068 TI - Relativistic electron acceleration by mJ-class kHz lasers normally incident on liquid targets. AB - We report observation of kHz-pulsed-laser-accelerated electron energies up to 3 MeV in the -klaser (backward) direction from a 3 mJ laser interacting at normal incidence with a solid density, flowing-liquid target. The electrons/MeV/s.r. >1 MeV recorded here using a mJ-class laser exceeds or equals that of prior super ponderomotive electron studies employing lasers at lower repetition-rates and oblique incidence. Focal intensity of the 40-fs-duration laser is 1.5 . 1018 W cm 2, corresponding to only ~80 keV electron ponderomotive energy. Varying laser intensity confirms electron energies in the laser-reflection direction well above what might be expected from ponderomotive scaling in normal-incidence laser target geometry. This direct, normal-incidence energy spectrum measurement is made possible by modifying the final focusing off-axis-paraboloid (OAP) mirror with a central hole that allows electrons to pass, and restoring laser intensity through adaptive optics. A Lanex-based, optics-free high-acquisition rate (>100 Hz) magnetic electron-spectrometer was developed for this study to enable shot-to shot statistical analysis and real-time feedback, which was leveraged in finding optimal pre-plasma conditions. 3D Particle-in-cell simulations of the interaction show qualitative super-ponderomotive spectral agreement with experiment. The demonstration of a high-repetition-rate, high-flux source containing >MeV electrons from a few-mJ, 40 fs laser and a simple liquid target encourages development of future >=kHz-repetition, fs-duration electron-beam applications. PMID- 29041069 TI - Generation of vector dissipative and conventional solitons in large normal dispersion regime. AB - We report the generation of both polarization-locked vector dissipative soliton and group velocity-locked vector conventional soliton in a nanotube-mode-locked fiber ring laser with large normal dispersion, for the first time to our best knowledge. Depending on the polarization-depended extinction ratio of the fiber based Lyot filter, the two types of vector solitons can be switched by simply tuning the polarization controller. In the case of low filter extinction ratio, the output vector dissipative soliton exhibits steep spectral edges and strong frequency chirp, which presents a typical pulse duration of ~23.4 ps, and can be further compressed to ~0.9 ps. In the contrastive case of high filter extinction ratio, the vector conventional soliton has clear Kelly sidebands with transform limited pulse duration of ~1.8 ps. Our study provides a new and simple method to achieve two different vector soliton sources, which is attractive for potential applications requiring different pulse profiles. PMID- 29041070 TI - Design of metasurface polarizers based on two-dimensional cold atomic arrays. AB - Engineering light-matter interaction using cold atomic arrays is one of the central topics in modern optics. Here we have demonstrated the capability of two dimensional asymmetric cold atomic arrays as microscopic metasurfaces for controlling polarization states of light. The designed linear polarizer can lead to an extinction ratio over 20dB as well as a high transmittance over 0.8 for the permitted polarization at zero detuning. For detuned driving light, changing lattice constants can also achieve high performance linear polarizers. We have also accomplished a circular polarizer by manipulating the phases of transmitted light. A theoretical analysis based on Bloch theorem shows the underlying mechanism for this performance is actually attributed to cooperative effects in periodic lattices. Finally, we discuss in detail the effects of system size, lattice imperfection and nonzero driving light linewidth in practical implementation. The present study paves a way to design extremely miniaturized metasurfaces using cold atoms and other two-level systems, showing great potential in quantum information and quantum metrology sciences as well as the fundamental physics of light-matter interaction. PMID- 29041071 TI - Characterization of micron-size hydrogen clusters using Mie scattering. AB - Hydrogen clusters with diameters of a few micrometer range, composed of 108-10 hydrogen molecules, have been produced for the first time in an expansion of supercooled, high-pressure hydrogen gas into a vacuum through a conical nozzle connected to a cryogenic pulsed solenoid valve. The size distribution of the clusters has been evaluated by measuring the angular distribution of laser light scattered from the clusters. The data were analyzed based on the Mie scattering theory combined with the Tikhonov regularization method including the instrumental functions, the validity of which was assessed by performing a calibration study using a reference target consisting of standard micro-particles with two different sizes. The size distribution of the clusters was found discrete peaked at 0.33 +/- 0.03, 0.65 +/- 0.05, 0.81 +/- 0.06, 1.40 +/- 0.06 and 2.00 +/- 0.13 um in diameter. The highly reproducible and impurity-free nature of the micron-size hydrogen clusters can be a promising target for laser-driven multi-MeV proton sources with the currently available high power lasers. PMID- 29041072 TI - Magnetic modulation of mid-infrared plasmons using Giant Magnetoresistance. AB - We propose a novel approach to generate active mid IR plasmonic systems by incorporating giant magnetoresistance as the driving mechanism. The magnetic field induced change in resistivity in Ni81Fe19/Au multilayers directly affects the diagonal elements of the dielectric tensor of the system, mainly in the mid IR range, via the magnetorefractive effect. With magnetic fields as small as 50 Oe, we postulate the possibility to modulate the response of such continuous and patterned structures in a contactless, easy to implement fashion. The potential application impact of this modulation concept is analyzed. PMID- 29041073 TI - Improved wavefront correction for coherent image restoration. AB - Coherent imaging has a wide range of applications in, for example, microscopy, astronomy, and radar imaging. Particularly interesting is the field of microscopy, where the optical quality of the lens is the main limiting factor. In this article, novel algorithms for the restoration of blurred images in a system with known optical aberrations are presented. Physically motivated by the scalar diffraction theory, the new algorithms are based on Haugazeau POCS and FISTA, and are faster and more robust than methods presented earlier. With the new approach the level of restoration quality on real images is very high, thereby blurring and ringing caused by defocus can be effectively removed. In classical microscopy, lenses with very low aberration must be used, which puts a practical limit on their size and numerical aperture. A coherent microscope using the novel restoration method overcomes this limitation. In contrast to incoherent microscopy, severe optical aberrations including defocus can be removed, hence the requirements on the quality of the optics are lower. This can be exploited for an essential price reduction of the optical system. It can be also used to achieve higher resolution than in classical microscopy, using lenses with high numerical aperture and high aberration. All this makes the coherent microscopy superior to the traditional incoherent in suited applications. PMID- 29041074 TI - Low-loss and reflection-free fused type fan-out device for 7-core fiber based on a bundled structure. AB - We describe a fused type fan-out device for 7-core fiber based on a bundled structure, which has no taper structure and a highly accurate core arrangement. We evaluated the repeatability of the splice loss characteristics of the fan-out device by splice testing 10 samples, resulting in an average splice loss of as low as 0.3 dB with a deviation of 0.048 dB. The crosstalk between the center and outer cores was less than -52 dB. Furthermore, the power damage threshold was higher than 1 W and the amount of Fresnel reflection at the splice point between the fiber bundle and the 7-core fiber was lower than the Rayleigh scattering level because of the arc fusion splicing. PMID- 29041075 TI - Understanding the effects of groove structures on the MTF. AB - We develop a theory for understanding and modeling the effects of mid-spatial frequency (MSF) structures on the modulation transfer function (MTF) of an imaging system. We show that the MTF is related through Fourier transformation to what we call the pupil-difference probability density (PDPD) function. This relation is illustrated for several one-dimensional periodic groove patterns. We also consider two-dimensional pupils, particularly those presenting straight and circular concentric periodic surface errors, similar to those resulting from diamond turning and milling processes of freeform optical manufacturing, and develop simple approximations for the MTF based on the PDPD. Our approach provides an analytic way to understand the effects of tool profiles, as well as other freeform manufacturing parameters. PMID- 29041076 TI - Experimental measurement of supercontinuum coherence in highly nonlinear soft glass photonic crystal fibers. AB - We present experimental measurements illustrating the power-dependent coherence evolution for supercontinuum generated in highly nonlinear SF6 photonic crystal fibers. The measurements were performed for fiber lengths close to and much longer than the soliton fission length. Simulations of the spectral evolution were also carried out to accompany the experimental observation. Many parameters were estimated by matching the simulated and the measured evolution. Both the measured and the simulated coherence evolution confirm the association between coherence degradation and soliton fission. PMID- 29041077 TI - Extended C-band tunable multi-channel InP-based coherent receiver PICs. AB - Fully integrated monolithic, multi-channel InP-based coherent receiver PICs and transceiver modules with extended C-band tunability are described. These PICs operate at 33 and 44 Gbaud per channel under dual polarization (DP) 16-QAM modulation. Fourteen-channel monolithic InP receiver PICs show integration and data rate scaling capability to operate at 44 Gbaud under DP 16-QAM modulation for combined 4.9 Tb/s total capacity. Six channel simultaneous operation of a commercial transceiver module at 33 Gbaud is demonstrated for a variety of modulation formats including DP 16-QAM for >1.2Tbit/s aggregate data capacity. PMID- 29041078 TI - Fast ultra-wideband microwave spectral scanning utilizing photonic wavelength- and time-division multiplexing. AB - A high-speed ultra-wideband microwave spectral scanning system is proposed and experimentally demonstrated. Utilizing coherent dual electro-optical frequency combs and a recirculating optical frequency shifter, the proposed system realizes wavelength- and time-division multiplexing at the same time, offering flexibility between scan speed and size, weight and power requirements (SWaP). High-speed spectral scanning spanning from ~1 to 8 GHz with ~1.2 MHz spectral resolution is achieved experimentally within 14 us. The system can be easily scaled to higher bandwidth coverage, faster scanning speed or finer spectral resolution with suitable hardware. PMID- 29041079 TI - Optimization of instrument matrix for Mueller matrix ellipsometry based on partial elements analysis of the Mueller matrix. AB - We consider the Mueller matrix ellipsometry (MME) measuring the ellipsometric parameters of the isotropic sample and the anisotropic sample under certain conditions in the presence of either Gaussian additive noise or Poisson shot noise. In this case, the ellipsometric parameters only relate to partial elements in Mueller matrix, and we optimize the instrument matrices of polarization state generator (PSG) and analyzer (PSA) to minimize the total measurement variance for these elements, in order to decrease the variance of the estimator of ellipsometric parameters. Compared with the previous instrument matrices, the optimal instrument matrices in this paper can effectively decrease the measurement variance and thus statistically improve the measurement precision of the ellipsometric parameters. In addition, it is found that the optimal instrument matrices for Poisson shot noise are same to those for Gaussian additive noise, and furthermore, the optimal instrument matrices do not depend on the ellipsometric parameters to be measured, which means that the optimal instrument matrices of MME proposed in this paper can be widely applied in various cases. PMID- 29041080 TI - Strain sensor based on gourd-shaped single-mode-multimode-single-mode hybrid optical fibre structure. AB - A fibre-optic strain sensor based on a gourd-shaped joint multimode fibre (MMF) sandwiched between two single-mode fibres (SMFs) is described both theoretically and experimentally. The cladding layers of the two MMFs are reshaped to form a hemisphere using an electrical arc method and spliced together, yielding the required gourd shape. The gourd-shaped section forms a Fabry-Perot cavity between the ends of two adjacent but non-contacting multimode fibres' core. The effectiveness of the multimode interference based on the Fabry-Perot interferometer (FPI) formed within the multimode inter-fibre section is greatly improved resulting in an experimentally determined strain sensitivity of -2.60 pm/MUepsilon over the range 0-1000 MUepsilon. The sensing characteristics for temperature and humidity of this optical fibre strain sensor are also investigated. PMID- 29041081 TI - 140 W peak power laser system tunable in the LWIR. AB - We present a high peak power rapidly tunable laser system in the long-wave infrared comprising an external-cavity quantum cascade laser (EC-QCL) broadly tunable from 8 to 10 um and an optical parametric amplifier (OPA) based on quasi phase-matching in orientation-patterned gallium arsenide (OP-GaAs) of fixed grating period. The nonlinear crystal is pumped by a pulsed fiber laser system to achieve efficient amplification in the OPA. Quasi phase-matching remains satisfied when the EC-QCL wavelength is swept from 8 to 10 um with a crystal of fixed grating period through tuning the pump laser source around 2 um. The OPA demonstrates parametric amplification from 8 um to 10 um and achieves output peak powers up to 140 W with spectral linewidths below 3.5 cm-1. The beam profile quality (M2) remains below 3.4 in both horizontal and vertical directions. Compared to the EC-QCL, the linewidth broadening is attributed to a coupling with the OPA. PMID- 29041082 TI - Optical directional amplification in a three-mode optomechanical system. AB - We study the directional amplification of an optical probe field in a three-mode optomechanical system, where the mechanical resonator interacts with two linearly coupled optical cavities and the cavities are driven by strong optical pump fields. The optical probe field is injected into one of the cavity modes, and at the same time, the mechanical resonator is subject to a mechanical drive with the driving frequency equal to the frequency difference between the optical probe and pump fields. We show that the transmission of the probe field can be amplified in one direction and de-amplified in the opposite direction. This directional amplification or de-amplification results from the constructive or destruction interference between different transmission paths in this three-mode optomechanical system. PMID- 29041083 TI - Optical sectioning in optical resolution photo acoustic microscopy. AB - We report a novel optical resolution photoacoustic microscopy concept to obtain an axial resolution only by optical methods. The photoacoustic signal is generated through a non-radiative relaxation from a level that is populated by excited state absorption. This two-step excitation process of a single laser enables to achieve an optical sectioning without any acoustic selectivity, whereby a full optical resolution photoacoustic microscopy is obtained. We bring a proof of this concept using Rhodamine and Zinc Tetraphenylporphyrin dyes known for their efficient excited state absorption process. PMID- 29041084 TI - Humidity-insensitive temperature sensor based on a quartz capillary anti-resonant reflection optical waveguide. AB - A compact, humidity-insensitive, fiber optic temperature sensor based on a quartz capillary, antiresonant reflecting optical waveguide was proposed and experimentally demonstrated. The transmission spectral responses of the proposed sensor were experimentally investigated regarding temperature variation and environmental humidity. Resonant dips exhibited temperature sensitivity as large as 201 pm/ degrees C from -30 to 45 degrees C in a humid environment. By coating a sufficiently thick gold film onto the sensor surface, the humidity cross sensitivity issue was effectively resolved. This proposed sensor was anticipated to find potential applications in humid environments, and moreover, immunity to humidity-sensitivity ensures its applicability in marine environments. PMID- 29041085 TI - Practical system for the generation of pulsed quantum frequency combs. AB - The on-chip generation of large and complex optical quantum states will enable low-cost and accessible advances for quantum technologies, such as secure communications and quantum computation. Integrated frequency combs are on-chip light sources with a broad spectrum of evenly-spaced frequency modes, commonly generated by four-wave mixing in optically-excited nonlinear micro-cavities, whose recent use for quantum state generation has provided a solution for scalable and multi-mode quantum light sources. Pulsed quantum frequency combs are of particular interest, since they allow the generation of single-frequency-mode photons, required for scaling state complexity towards, e.g., multi-photon states, and for quantum information applications. However, generation schemes for such pulsed combs have, to date, relied on micro-cavity excitation via lasers external to the sources, being neither versatile nor power-efficient, and impractical for scalable realizations of quantum technologies. Here, we introduce an actively-modulated, nested-cavity configuration that exploits the resonance pass-band characteristic of the micro-cavity to enable a mode-locked and energy efficient excitation. We demonstrate that the scheme allows the generation of high-purity photons at large coincidence-to-accidental ratios (CAR). Furthermore, by increasing the repetition rate of the excitation field via harmonic mode locking (i.e. driving the cavity modulation at harmonics of the fundamental repetition rate), we managed to increase the pair production rates (i.e. source efficiency), while maintaining a high CAR and photon purity. Our approach represents a significant step towards the realization of fully on-chip, stable, and versatile sources of pulsed quantum frequency combs, crucial for the development of accessible quantum technologies. PMID- 29041086 TI - Ultrabroadband 2D electronic spectroscopy with high-speed, shot-to-shot detection. AB - Two-dimensional electronic spectroscopy (2DES) is an incisive tool for disentangling excited state energies and dynamics in the condensed phase by directly mapping out the correlation between excitation and emission frequencies as a function of time. Despite its enhanced frequency resolution, the spectral window of detection is limited to the laser bandwidth, which has often hindered the visualization of full electronic energy relaxation pathways spread over the entire visible region. Here, we describe a high-sensitivity, ultrabroadband 2DES apparatus. We report a new combination of a simple and robust setup for increased spectral bandwidth and shot-to-shot detection. We utilize 8-fs supercontinuum pulses generated by gas filamentation spanning the entire visible region (450 - 800 nm), which allows for a simultaneous interrogation of electronic transitions over a 200-nm bandwidth, and an all-reflective interferometric delay system with angled nanopositioner stages achieves interferometric precision in coherence time control without introducing wavelength-dependent dispersion to the ultrabroadband spectrum. To address deterioration of detection sensitivity due to the inherent instability of ultrabroadband sources, we introduce a 5-kHz shot-to-shot, dual chopping acquisition scheme by combining a high-speed line-scan camera and two optical choppers to remove scatter contributions from the signal. Comparison of 2D spectra acquired by shot-to-shot detection and averaged detection shows a 15 fold improvement in the signal-to-noise ratio. This is the first direct quantification of detection sensitivity on a filamentation-based ultrabroadband 2DES apparatus. PMID- 29041087 TI - Thermalization of one-dimensional photon gas and thermal lasers in erbium-doped fibers. AB - We demonstrate thermalization and Bose-Einstein (BE) distribution of photons in standard erbium-doped fibers (edf) in a broad spectral range up to ~200nm at the 1550nm wavelength regime. Our measurements were done at a room temperature ~300K and 77K. It is a special demonstration of thermalization of photons in fiber cavities and even in open fibers. They are one-dimensional (1D), meters-long, with low finesse, high loss and small capture fraction of the spontaneous emission. Moreover, we find in the edf cavities coexistence of thermal equilibrium (TE) and thermal lasing without an overall inversion (T-LWI). The experimental results are supported by a theoretical analysis based on the rate equations. PMID- 29041088 TI - Pulsed quantum continuous-variable optoelectromechanical transducer. AB - We propose a setup allowing to entangle two directly non-interacting radiation modes applying four sequential pulsed quantum resonant interactions with a noisy vibrational mode of a mechanical oscillator which plays the role of the mediator. We analyze Gaussian entanglement of the radiation modes generated by the transducer and confirm that the noisy mechanical mode can mediate generation of entanglement. The entanglement, however, is limited if the interaction gains are not individually optimized. We prove the robustness of the transducer to optical losses and the influence of the mechanical bath and propose the ways to achieve maximal performance through the individual optimization. PMID- 29041089 TI - LED power consumption in joint illumination and communication system. AB - This paper addresses the power penalty in an illumination LED caused by visible light communication (VLC). This study models the extra power consumption of the LED by taking into account the convex relation between the dissipated electrical power versus the LED current on one hand and the concave relation between the output luminous flux versus the current on the other hand. The ratio of the output luminous flux to input electrical power, which is known the LED luminous efficacy, is analyzed considering various recombination mechanisms and their dependency on current and temperature. As examples, the rapid light fluctuations induced by Pulse Amplitude Modulation (PAM) and orthogonal frequency division multiplexing (OFDM) are analyzed for joint illumination and communication (JIC) systems. Due to the signal modulation, there is a decrease in the output light of LED. Nevertheless, the total power offered to LED is larger than without modulation and thus extra heating occurs. Moreover, particularly when burst transmission is used in communication networks, visible flicker may occur. PMID- 29041090 TI - Toward near-white-light electroluminescence from n-ZnO nanocrystals/n-Si isotype heterojunctions via an AZO spectral scissor. AB - A strategy to realize ZnO-based near-white-light electroluminescence (EL) was proposed by utilizing and regulating the intrinsic defect-related emissions of solution-processed ZnO nanocrystals (NCs). Prototype near-white light-emitting diodes (LEDs) based upon this strategy were demonstrated by using n-ZnO NCs/n-Si isotype heterojunctions. The emission color of the n-ZnO NCs/n-Si isotype heterojunction LEDs was tuned toward near white by using an Al-doped ZnO (AZO) spectral "scissor" which can tailor the green light more severely, rather than the blue or red light. Moreover, quantum size effect was clearly observed in both the photoluminescence (PL) and EL spectra via the redshift of the near-band-edge UV emission of the ZnO NCs. The strategy using AZO spectral "scissors" to regulate the VO-related green emission of ZnO may present a promising pathway to realize ZnO-based white-light LEDs. PMID- 29041091 TI - Mathematical synthesis and analysis of a second-order magneto-electrically nonlinear metasurface. AB - We propose a discussion on the synthesis and scattering analysis of nonlinear metasurfaces. For simplicity, we investigate the case of a second-order nonlinear isotropic metasurface possessing both electric and magnetic linear and nonlinear susceptibility components. We next find the synthesis expressions relating the susceptibilities to the specified fields, which leads to the definition of the nonlinear metasurface conditions for no reflection, themselves revealing the nonreciprocal nature of such structures. Finally, we provide the approximate expressions of the scattered fields based on perturbation theory and compare the corresponding results to finite-difference time-domain simulations. PMID- 29041092 TI - Compact and broadband antenna based on a step-shaped metasurface. AB - A metasurface (MS) is highly useful for improving the performance of patch antennae and reducing their size due to their inherent and unique electromagnetic properties. In this paper, a compact and broadband antenna based on a step-shaped metasurface (SMS) at an operating frequency of 4.3 GHz is presented, which is fed by a planar monopole and enabled by selecting an SMS with high selectivity. The SMS consists of an array of metallic step-shaped unit cells underneath the monopole, which provide footprint miniaturization and bandwidth expansion. Numerical results show that the SMS-based antenna with a maximum size of 0.42lambda02 (where lambda0 is the operating wavelength in free space) exhibits a 22.3% impedance bandwidth (S11 < -10 dB) and a high gain of more than 7.15 dBi within the passband. Experimental results at microwave frequencies verify the performance of the proposed antenna, demonstrating substantial consistency with the simulation results. The compact and broadband antenna therefore predicts numerous potential applications within modern wireless communication systems. PMID- 29041093 TI - Efficient 5.2 um wavelength fiber-to-chip grating couplers for the Ge-on-Si and Ge-on-SOI mid-infrared waveguide platform. AB - We present the design, fabrication and characterization of efficient fiber-to chip grating couplers on a Germanium-on-Silicon (Ge-on-Si) and Germanium-on silicon-on-insulator (Ge-on-SOI) platform in the 5 um wavelength range. The best grating couplers on Ge-on-Si and Ge-on-SOI have simulated coupling efficiencies of -4 dB (40%) with a 3 dB bandwidth of 180 nm and -1.5 dB (70%) with a 3 dB bandwidth of 200 nm, respectively. Experimentally, we show a maximum efficiency of -5 dB (32%) and a 3 dB bandwidth of 100 nm for Ge-on-Si grating couplers, and a -4 dB (40%) efficiency with a 3 dB bandwidth of 180 nm for Ge-on-SOI couplers. PMID- 29041094 TI - Photonic generation of RF binary digitally modulated signals. AB - A novel scheme of microwave photonic generation of binary digitally modulated signals is proposed and experimentally demonstrated, which can simultaneously generate 2ASK, 2PSK and 2FSK. By dynamically manipulating an optical frequency comb, different modulation formats can be switched. Moreover, the bit rate and carrier frequency of the generated RF signals can be tuned. PMID- 29041095 TI - Focused, evanescent, hollow, and collimated beams formed by microaxicons with different conical angles. AB - Diffraction patterns formed by axicons with different tip (vertex) angles are analytically and numerically investigated. Results show that the axicon (or tapered dielectric probe) can form an extended axial light beam, a compact evanescent field, a hollow beam, and a collimated beam, depending on the vertex angle. Two-dimensional and three-dimensional models of a tapered dielectric probe show that, with small changes to the vertex angle, light transmitted by the probe is scattered rather than focused, and vice versa. Angle meanings corresponded to boundary transitions have a quantum character and densify as the angle approaches zero. These features should be taken into consideration when manufacturing microaxicons intended for various applications. PMID- 29041096 TI - Temperature dependent photoluminescence of composition tunable ZnxAgInSe quantum dots and temperature sensor application. AB - Quantum dots (QDs) exhibit not only wide tunability of luminescence but also complex optical properties because of the large degree of freedom in their structure and chemical composition. Quaternary ZnxAgInSe QDs with different Zn/Ag ratios were synthesized and examined as temperature sensors. The relationship among the luminescence energy, emission intensity, and full-width at half-maximum (FWHM) of the emission band at different temperatures was investigated. To understand the photoluminescence mechanism, time-resolved photoluminescence spectra were recorded. Moreover, the dependence of the luminescence peak energy and FWHM on temperature was investigated, and a small deviation from the actual temperature was observed, indicative of the use of ZnxAgInSe QDs as high sensitivity temperature sensors. PMID- 29041097 TI - Enhancing the signal-to-noise ratio of FTIR spectrometers by a digital J-Stop. AB - Fourier transform infrared (FTIR) spectrometers have been widely used as very important analytical tools in various fields. Owing to the Jacquinot Stop (J Stop), high throughput is a widely recognized advantage inherent to Fourier transform interferometers. However, there is a fundamental trade-off between the throughput and spectral resolution, which is primarily affected by the size of the J-Stop. So far, no effective optimization methods have been provided to break the trade-off. In this paper, we introduce a numeric technique of the digital J Stop, which has been experimentally validated using the FTIR spectra collected from a commercial spectrometer. The result shows that the throughput can be increased by ~12 times, while the spectral resolution is also improved. In this way, the signal-to-noise ratio (SNR) gets improved by ~3 times. PMID- 29041098 TI - Design and characterization of a p+/n-well SPAD array in 150nm CMOS process: erratum. AB - An erratum is presented to correct a reference mistake in Table 1 in Sect. 4 of [Opt. Express25, 12765 (2017)]. PMID- 29041099 TI - Nanostructured antireflective in-plane solar harvester. AB - In this work, we demonstrate a two-dimensional nano-hole array that can reduce reflection losses while passively trapping and harvesting incident light. The surface structure is designed to scavenge a small portion of incident light that would typically be lost due to Fresnel reflection, while the majority of light transmits unobstructed like a regular window. The trapping mechanism is dependent on angle and wavelength, and can be designed to selectively trap narrow wavelength bands using the constructed theoretical models. We demonstrate that structures with periods of 275 nm and 325 nm can trap different wavelength range within the visible spectrum, while simultaneously suppressing reflection losses. The trapping effect can be observed visually, and can be converted to a current output using a photovoltaic (PV) cell on the glass edge. The fabrication of such materials employs a simple replication process, and can be readily scaled up for large-scale manufacturing. The demonstrated solar harvester can be potentially be widely deployed in residential and commercial buildings as multifunctional windows for solar energy harvesting, scavenging, spectra splitting, and anti glare properties. PMID- 29041100 TI - Estimation of coniferous forest aboveground biomass with aggregated airborne small-footprint LiDAR full-waveforms. AB - Forest aboveground biomass (AGB) is critical for assessing forest productivity and evaluating carbon sequestration rates. Discrete-return LiDAR has been widely used to estimate forest AGB, however, fewer studies have estimated the coniferous forest AGB using airborne small-footprint full-waveform LiDAR data. The objective of this study was to extract a suite of newly proposed metrics from airborne small-footprint full-waveform LiDAR data and to evaluate the ability of these metrics in estimating coniferous forest AGB. To achieve this goal, each waveform was first preprocessed, including de-noising, smoothing, and normalization. Next, all the waveforms within each plot were aggregated into a large pseudo waveform and the return energy profile was generated. Then, the foliage profile was retrieved from the return energy profile based on the Geometric Optical and Radiative Transfer (GORT) model. Finally, a series of new return energy profile metrics and foliage profile metrics were extracted to estimate forest AGB. Simple linear regression was conducted to assess the correlation between each LiDAR metric and forest AGB. Stepwise multiple regression analysis was then carried out to select important prediction metrics and establish the optimal forest AGB estimation model. Results indicated that both return energy profile and foliage profile based height-related metrics were strongly correlated to forest AGB. The energy weighted canopy height (HEweight) (R = 0.88) and foliage area weighted height (HFweight) (R = 0.89) all had the highest correlation coefficients with forest AGB in return energy profile metrics and foliage profile metrics respectively. Energy height percentiles and foliage height percentiles also had the ability to explain AGB variation. The energy-related metrics, foliage area related metrics, and bounding volume-related metrics derived from the return energy profile and foliage profile were not all sensitive to forest AGB. This study also concluded that combining return energy profile metrics and foliage profile metrics could improve the accuracy of forest AGB estimation, and the optimal model contained the metrics of HFweight, HEweight, and VolumemaxHE, which is the product of the maximum canopy return energy profile amplitude (maxCE) and the maximum height of return energy profile (maxHE). PMID- 29041101 TI - Thin-film camera using luminescent concentrators and an optical Soller collimator: publisher's note. AB - This publisher's note amends the author list of [Opt. Express25, 18526 (2017)]. PMID- 29041102 TI - Analysis for the phase-diffusion effect in a phase-shifted helical long-period fiber grating and its pre-compensation. AB - Through analyzing the structure of the phase-shifted helical long-period fiber grating (HLPG), which is fabricated based on the thermally twisting method, we have shown that there exists a phase-diffusion effect when the thermal region is larger than the grating period itself, i.e., the inserted phase preset at particular period will be diffused to several neighboring periods, which causes a large distortion in the transmission spectrum. We have analytically proved that this kind of phase-diffusion effect can be quantified by doing the convolution between the preset phase function and the phase-diffusion function in spatial domain. According to the analytical results, we have proposed and successfully demonstrated a pre-compensation method to solve the phase diffusion effect. As an example, a phase-shifted HLPG with pi phase-shift precisely inserted at middle position of the grating has been presented. PMID- 29041103 TI - Ultraslow weak-light solitons and their storage and retrieval in a kagome structured hollow-core photonic crystal fiber. AB - We investigate the formation and propagation of ultraslow weak-light solitons and their memory in the atomic gas filled in a kagome-structured hollow-core photonic crystal fiber (HC-PCF) via electromagnetically induced transparency (EIT). We show that, due to the strong light-atom coupling contributed by the transverse confinement of the HC-PCF, the EIT and hence the optical Kerr nonlinearity of the system can be largely enhanced, and hence optical solitons with very short formation distance, ultraslow propagation velocity, and extremely low generation power can be realized. We also show that the optical solitons obtained can not only be robust during propagation, but also be stored and retrieved with high efficiency through the switching off and on of a control laser field. The results reported herein are promising for practical applications of all-optical information processing and transmission via the ultraslow weak-light solitons and the kagome-structured HC-PCF. PMID- 29041104 TI - Modeling of ultrashort pulse amplification with gain saturation. AB - A new method for the realistic modeling of ultrashort pulse amplification under conditions of strong gain saturation has been developed. Both the frequency dependence and the time dependence of the gain are properly taken into account. The method can, for example, be applied to chirped-pulse bulk and fiber amplifiers, but is not restricted to pulses with particular spectral or temporal properties. PMID- 29041105 TI - Spin Hall effect of reflected light in dielectric magneto-optical thin film with a double-negative metamaterial substrate. AB - We study spin the Hall effect (SHE) of reflected light in a dielectric magneto optical thin film of Ce1Y2Fe5O12 (Ce:YIG) with a double-negative (DNG) metamaterial substrate. The spin-dependent splitting expressions of left- and the right-handed circularly polarized (LHCP and RHCP) components in longitudinal, polar and transverse magneto-optical Kerr effect (MOKE) configurations are obtained. Meanwhile we first obtain the analytical expressions of the SHE shift of reflected light for three MOKE configurations by proper approximation. Owing to the enhancement of the MOKE by DNG metamaterial, the external magnetic field shows a large enhancement and modulation to spin-dependent splitting of reflected light. Based on simulation results, the influences of magnetic field direction and substrate material on the transverse centroid shifts of the reflected left- and right-handed circularly polarized light perpendicular to incident plane are analyzed. We find the maximum spin-dependent splitting between LHCP and RHCP components achieves about 9.2 MUm and the maximum value of the magneto-optical spin Hall effect (MOSHE) shift reaches 9 MUm in polar MOKE configuration. In order to make our results convincing we use a realizable DNG metamaterial with silver nanostructures as substrate to verify our conclusion. The DNG metamaterial provides a flexible method to manipulate and enhance SHE of light. PMID- 29041106 TI - Design of a broadband reciprocal optical diode in a silicon waveguide assisted by silver surface plasmonic splitter. AB - In this paper, we propose a new scheme for a reciprocal optical diode integrated in a multimode silicon waveguide. The compact 4MUm long functional region consists of a tapered coupler, a narrow single-mode waveguide, and a half elliptical silver surface plasmonic splitter with refractive index modification of silicon. This spatial asymmetric design achieves even-to-odd mode conversion in the forward direction and blocks propagation of the even mode in the backward direction. The maximum contrast ratio and forward transmission efficiency reach approximately 0.99 and 87% while the values respectively keep higher than 0.96 and 80% within a 100nm operational bandwidth in a two-dimensional design. Both freestanding and SOI-based three-dimensional devices are simulated and at least a 0.94 contrast ratio is observed. Moreover, the robustness is demonstrated by introducing deviations to the surface plasmonic splitter. The proposed scheme brings together advantages including a high contrast ratio (>0.94), a large operational bandwidth (100nm) and a small footprint (4MUm long). PMID- 29041107 TI - Self-equalizing photodiodes, a hybrid electro-optical approach to tackle bandwidth limitation in high-speed signaling. AB - In this paper we provide the design details of self-equalizing photodetectors which enable higher data rate transmission by improving the overall bandwidth of the bandwidth limited transmission link, through a hybrid electro-optical solution. Two different self-equalizing photodiodes, one having fixed equalization and the other being programmable are presented as proof of concept. PMID- 29041108 TI - Unraveling beam self-healing. AB - We show that, contrary to popular belief, diffraction-free beams may not only reconstruct themselves after hitting an opaque obstacle but also, for example, Gaussian beams. We unravel the mathematics and the physics underlying the self reconstruction mechanism and we provide for a novel definition for the minimum reconstruction distance beyond geometric optics, which is in principle applicable to any optical beam that admits an angular spectrum representation. Moreover, we propose to quantify the self-reconstruction ability of a beam via a newly established degree of self-healing. This is defined via a comparison between the amplitudes, as opposite to intensities, of the original beam and the obstructed one. Such comparison is experimentally accomplished by tailoring an innovative experimental technique based upon Shack-Hartmann wave front reconstruction. We believe that these results can open new avenues in this field. PMID- 29041109 TI - Sub-pixel projector calibration method for fringe projection profilometry. AB - Digital projectors are used as standard parts at present in fringe projection profilometry systems to project structured-light patterns onto the object surface to be measured, and the distortion of the projector lens must be calibrated and compensated accurately to satisfy the accuracy requirement of industrial applications. A novel method is proposed to determine the projector pixel coordinates of the marker points of a calibration target accurately in terms of projective transform. With the method, the projector can be calibrated with accuracy of sub-pixel level. The method is applicable for the calibration target with a chessboard pattern or a circle pattern, and the calibration result is independent on the results of camera calibration. Experimental results are shown to demonstrate the effectiveness and validity of the proposed method. PMID- 29041110 TI - 34 nm-wavelength-tunable picosecond Ho3+/Pr3+-codoped ZBLAN fiber laser. AB - We propose and demonstrate a broadly wavelength-tunable mode-locked Ho3+/Pr3+ codoped ZBLAN fiber laser operating in the 3 MUm mid-infrared spectral region based on a semiconductor saturable absorber mirror. Wavelength selection is realized by rotating a plane ruled grating. The fiber laser exhibits stable continuous-wave mode-locking operation over a wide wavelength tuning range of 34 nm (2842.2 nm~2876.2 nm), with a 10.17 MHz repetition rate and 22 ps pulse duration. Stable mode-locked pulses can be maintained until the launched pump power of 1.25 W. Maximum average output power of 127.7 mW and the corresponding pulse energy of 12.56 nJ are achieved. To the best of our knowledge, this is the first demonstration of a wavelength-tunable mode-locked fiber laser operating in the 3 MUm spectral region. Such simple, robust, and versatile mid-infrared picosecond laser source can find various applications in laser surgery, spectroscopy, and nonlinear frequency conversion. PMID- 29041111 TI - InGaN uLEDs integrated onto colloidal quantum dot functionalized ultra-thin glass. AB - Red-, orange-, and green-emitting integrated optoelectronic sources are demonstrated by transfer printing blue InGaN uLEDs onto ultra-thin glass platforms functionally enhanced with II-VI colloidal quantum dots (CQDs). The forward optical power conversion efficiency of these heterogeneously integrated devices is, respectively, 9%, 15%, and 14% for a blue light absorption over 95%. The sources are demonstrated in an orthogonal frequency division multiplexed (OFDM) visible light communication link reaching respective data transmission rates of 46 Mbps, 44 Mbps and 61 Mbps. PMID- 29041112 TI - Ultra-multiband absorption enhancement of graphene in a metal-dielectric-graphene sandwich structure covering terahertz to mid-infrared regime. AB - We investigate the absorption enhancement of an unstructured graphene sheet in a broad frequency range from terahertz (THz) to mid-infrared regime. Ultra multiband graphene absorption enhancement is observed by integrating graphene in a metal-dielectric-graphene (MDG) sandwich structure for polarized waves. Multiple order Fabry-Perot (FP) resonances are demonstrated to be responsible for the multiband absorption. Furthermore, perfect absorption is realized by introducing the MDG structure on a metal reflector to suppress the transmission channel. In addition, the absorption peaks can be easily tuned by changing the doping level of graphene. This work may have potential for improving the performance of graphene based optoelectrical devices and can be regarded as a demonstration of a tunable broadband near-perfect metamaterial absorber. PMID- 29041113 TI - Acceleration of sub-relativistic electrons with an evanescent optical wave at a planar interface. AB - We report on a theoretical and experimental study of the energy transfer between an optical evanescent wave, propagating in vacuum along the planar boundary of a dielectric material, and a beam of sub-relativistic electrons. The evanescent wave is excited via total internal reflection in the dielectric by an infrared (lambda = 2 MUm) femtosecond laser pulse. By matching the electron propagation velocity to the phase velocity of the evanescent wave, energy modulation of the electron beam is achieved. A maximum energy gain of 800 eV is observed, corresponding to the absorption of more than 1000 photons by one electron. The maximum observed acceleration gradient is 19 +/- 2 MeV/m. The striking advantage of this scheme is that a structuring of the acceleration element's surface is not required, enabling the use of materials with high laser damage thresholds that are difficult to nano-structure, such as SiC, Al2O3 or CaF2. PMID- 29041114 TI - Sinusoidal frequency scan OFDR with fast processing algorithm for distributed acoustic sensing. AB - Recently it was shown that sinusoidal frequency scan optical frequency domain reflectometry (SFS-OFDR) can achieve remarkable performance in applications of distributed acoustic sensing (DAS). The main advantage of SFS-OFDR is the simplicity with which highly accurate sinusoidal frequency scans can be generated (in comparison with linear frequency scans). One drawback of SFS-OFDR has been the computationally intensive algorithm it required for processing of the measured backscatter data. The complexity of this algorithm was O(N2) where N is the number of backscatter samples. In this work a fast processing algorithm for SFS-OFDR, with computational complexity O (N log N), is derived and its performance and limitations are studied in details. The new algorithm facilitated highly sensitive DAS operation over a sensing fiber of 64km, with 6.5m resolution and scan rate of 400Hz. The high sensitivity of the system was demonstrated in a field trial where it successfully detected human footsteps near the end of the fiber with excellent SNR. PMID- 29041115 TI - 53-dB phase noise suppression and Hz-range linewidth emission in compact Brillouin/erbium fiber laser. AB - We demonstrate 53-dB phase noise reduction in a compact Brillouin/erbium fiber laser (BEFL), which uses 4-m erbium-doped-fiber (EDF) providing both the Brillouin gain and linear gain. A 360-kHz-linewidth laser diode is used as the Brillouin pump (BP) and excites the Brillouin Stokes light. The linewidth of the BEFL is estimated 1.8-Hz based on the correlation between the linewidth and phase noise. Experimental result demonstrates 6-Hz linewidth by beating the emission of two compact BEFLs. This fiber laser provides a simple and effective method to reduce laser phase noise and realize ultra-narrow-linewidth light. It presents many applications in such as interferometric fiber sensing, coherent optical communications, optical clocks, and precise spectroscopy. PMID- 29041116 TI - Dissipation-assisted spin squeezing of nitrogen-vacancy centers coupled to a rectangular hollow metallic waveguide. AB - Spin squeezing has received much attention due to the interesting physics and important applications such as quantum metrology and quantum information processing. We here present a scheme to engineer stable spin squeezing in an array of nitrogen vacancy centers (NVCs) coupled to a rectangular hollow metallic waveguide. The remarkable feature of the waveguide as the common environment media is that one can switch on/off either the waveguide induced dipole-dipole interactions or correlated spontaneous emissions among the NVCs by designing their spatial separation. It permits us to achieve a dissipative Dicke model after the dipole-dipole interactions vanish due to destructive interference. With the external driving lasers on each NVC, a second-order phase transition is triggered, separating the steady state into two phases with and without collective spin squeezing. Supplying a physical realization of the dissipative Dicke model, our study gives a bridge between the generation of the stable spin squeezing and the phase transition physics. PMID- 29041117 TI - MoVIT: a tomographic reconstruction framework for 4D-CT. AB - 4D computed tomography (4D-CT) aims to visualise the temporal dynamics of a 3D sample with a sufficiently high temporal and spatial resolution. Successive time frames are typically obtained by sequential scanning, followed by independent reconstruction of each 3D dataset. Such an approach requires a large number of projections for each scan to obtain images with sufficient quality (in terms of artefacts and SNR). Hence, there is a clear trade-off between the rotation speed of the gantry (i.e. time resolution) and the quality of the reconstructed images. In this paper, the MotionVector-based Iterative Technique (MoVIT) is introduced which reconstructs a particular time frame by including the projections of neighbouring time frames as well. It is shown that such a strategy improves the trade-off between the rotation speed and the SNR. The framework is tested on both numerical simulations and on 4D X-ray CT datasets of polyurethane foam under compression. Results show that reconstructions obtained with MoVIT have a significantly higher SNR compared to the SNR of conventional 4D reconstructions. PMID- 29041118 TI - Broadband Fourier-transform spectrometer enabling modal subset identification in Fabry-Perot-based astrocombs. AB - A multi-GHz frequency comb (astrocomb) is typically realized by filtering modes of a sub-GHz frequency comb (source comb) in a Fabry-Perot etalon, which can lead to ambiguities in determining which subset of source comb modes has been filtered. Here we demonstrate a broadband Fourier-transform spectrometer (FTS) with a resolving power of R = 430,000 at 550 nm, and apply it to the identification of comb subsets from a filtered 1-GHz supercontinuum. After apodization the FTS demonstrated an instrument line shape width of 1.26 GHz which enabled individual comb-line positions to be identified with an uncertainty of 17.6 MHz, a relative precision of 5 * 10-8. Correcting for air dispersion allowed the instrument to determine the comb-mode spacing to an accuracy of 300 Hz and filtered subsets of source comb modes to be uniquely distingished across the entire comb bandwidth from 550 to 900 nm. The inherently broadband design of the FTS makes it suitable in future applications for calibrating ultra-broadband astrocombs employed by instruments such as ELT HIRES. PMID- 29041119 TI - Towards 3D-photonic, multi-telescope beam combiners for mid-infrared astrointerferometry. AB - In the past two decades high precision optical astronomical interferometry has benefited from the use of photonic technologies. Today, near-infrared interferometric instruments deliver high-resolution, hyperspectral images of astronomical objects and combine up to 4 independent telescopes at a time thanks to integrated optics (IO). Following the success of IO interferometry, several initiatives aim at developing components which could combine simultaneously more telescopes and extend their operation beyond the near-infrared bands. Here we report on the development of multi-telescope IO beam combiners for mid-infrared interferometry exploiting the three-dimensional (3D) structuring capabilities of ultrafast laser inscription. We characterise the capability of a 2-telescope and a 4-telescope beam combiner to retrieve the visibility amplitude and phase of monochromatic light fields at a wavelength of 3.39 um. The combiner prototypes exploit different 3D architectures and are written with a femtosecond laser on substrates of Gallium Lanthanum Sulfide. Supporting numerical simulations of the performance of the beam combiners show that there is still room for improvement and indicate a roadmap for the development of future prototypes. PMID- 29041120 TI - Low-loss buried AlGaAs/AlOx waveguides using a quasi-planar process. AB - In this paper, we demonstrate that buried oxide-confined waveguides can be formed using a lateral oxidation process carried out through a discrete set of small diameter via-holes instead of the conventional scheme where the oxidation starts from the edges of etched mesas. The via-hole oxidation is shown to lead to straight waveguides with smooth oxide/semiconductor interfaces and whose propagation losses are similar to one obtained using the standard process but with the advantage of maintaining a quasi-planar wafer surface. It thereby paves the way towards a simplification of the fabrication of III-V-semiconductor-oxide photonic devices. PMID- 29041121 TI - Coherent beam combining and noise analysis of a colliding pulse modelocked VECSEL. AB - Optically-pumped SESAM-modelocked semiconductor disk lasers have become interesting ultrafast lasers with gigahertz pulse repetition rates, high average power and adjustable lasing wavelength. It is well established that colliding pulse modelocking (CPM) can generate both shorter pulses and improved stability. These improvements however typically come at the expense of a more complex ring cavity and two output beams. So far similar modelocking results have been obtained with CPM vertical external-cavity surface-emitting lasers (VECSELs) and with SESAM-modelocked VECSELs or modelocked integrated external-cavity surface emitting lasers (MIXSELs) in a linear cavity. However coherent beam combining of the two output beams of a CPM VECSEL could result in a significantly higher peak power. This is interesting for example for applications in biomedical microscopy and frequency metrology. Here we demonstrate with a more detailed noise analysis that for both output beams of a CPM VECSEL the pulse repetition rates and the carrier envelope offset frequencies are locked to each other. In contrast to standard SESAM-modelocked VECSELs in a linear cavity, we only have been able to actively stabilize the pulse repetition rate of the CPM VECSEL by cavity length control and not by pump-power control. Furthermore, a first coherent beam combining experiment of the two output beams is demonstrated. PMID- 29041122 TI - Open architecture time of flight 3D SWIR camera operating at 150 MHz modulation frequency. AB - In the past two decades 3-D cameras have proven to be one of the next revolutions in machine vision. However, these devices are still an emerging technology with a particularly narrow set of commercially available devices. In this paper, the concept and execution of the first short wavelength infrared (SWIR) time-of flight (ToF) 3-D camera system operating at a wavelength of 1550 nm is presented. By decoupling the optical and electrical components of the system in an open architecture we not only surpass many of the limitations of an on-chip integrated solution, but also can easily change the imaging device based on the requirements of the application. We achieve modulation frequencies up to 150 MHz, which exceeds the conventional values currently published for other large format modulators by about five times. This increase in the modulation frequency allows for a TOF camera with significantly higher depth resolution, while the open architecture design allows for a highly reconfigurable device that can be modified for specific working conditions. PMID- 29041123 TI - Nanoscale liquid crystal polymer Bragg polarization gratings. AB - We experimentally demonstrate nearly ideal liquid crystal (LC) polymer Bragg polarization gratings (PGs) operating at a visible wavelength of 450 nm and with a sub-wavelength period of 335 nm. Bragg PGs employ the geometric (Pancharatnam Berry) phase, and have many properties fundamentally different than their isotropic analog. However, until now Bragg PGs with nanoscale periods (e.g., < 800 nm) have not been realized. Using photo-alignment polymers and high birefringence LC materials, we employ multiple thin sublayers to overcome the critical thickness threshold, and use chiral dopants to induce a helical twist that effectively generates a slanted grating. These LC polymer Bragg PGs manifest 85-99% first-order efficiency, 19-29 degrees field-of-view, Q ~ 17, 200 nm spectral bandwidth, 84 degrees deflection angle in air (in one case), and efficient waveguide-coupling (in another case). Compared to surface-relief and volume-holographic gratings, they show high efficiency with larger angular/spectral bandwidths and potentially simpler fabrication. These nanoscale Bragg PGs manifest a 6pi rad/MUm phase gradient, the largest reported for a geometric-phase hologram while maintaining a first-order efficiency near 100%. PMID- 29041124 TI - Wavefront improvement in an end-pumped high-power Nd:YAG zigzag slab laser. AB - Techniques for wavefront improvement in an end-pumped Nd:YAG zigzag slab laser amplifier were proposed and demonstrated experimentally. First, a study on the contact materials was conducted to improve the heat transfer between the slab and cooling blocks and to increase the cooling uniformity. Among many attempts, only the use of silicon oil showed an improvement in the wavefront. Thus, the appropriate silicone oil was applied to the amplifier as a contact material. In addition, the wavefront compensation method using a glass rod array was also applied to the amplifier. A very low wavefront distortion was obtained through the use of a silicone-oil contact and glass rod array. The variance of the optical path difference for the entire beam height was 3.87 MUm at a pump power of 10.6 kW, and that for the 80% section was 1.69 MUm. The output power from the oscillator was 3.88 kW, which means the maximum output extracted from the amplifier at a pump power of 10.6 kW. PMID- 29041125 TI - Efficient continuous-wave diode-pumped Er3+:Yb3+:LaMgB5O10 laser with sapphire cooling at 1.57 MUm. AB - Efficient 1.57 MUm continuous-wave laser was demonstrated in an X-cut, 2.0 mm thick Er3+:Yb3+:LaMgB5O10 crystal with sapphire cooling end-pumped by a 976 nm laser diode. In a plano-concave cavity, a laser with a maximum output power of 0.61 W and a slope efficiency of 23% was realized at an absorbed pump power of 4.0 W. A continuous-wave 1566 nm micro-laser with a maximum output power of 0.47 W and a slope efficiency of 16% was also obtained. The lasers were totally linear polarization parallel to the crystalline Z axis. The results show that the Er3+:Yb3+:LaMgB5O10 crystal with high thermal conductivity may be a good gain medium for laser around 1.55 MUm. PMID- 29041126 TI - Generation of V-point polarization singularity lattices. AB - V-points normally do not occur in generic light fields as compared to C-points and L-lines. In structured optical fields, simultaneous existence of C-points, V points and L-lines can be engineered in lattice forms. But lattices consisting only of V-points have not been realized so far. In this paper we demonstrate creation of lattices of V-point polarization singularities with translational periodicity. These lattice structures are obtained by the interference of four (six) linearly polarized plane waves arranged in symmetric umbrella geometry. The state of polarization of each beam is controlled by an S-waveplate. Since in a periodic lattice of polarization singularities the net charge in a unit cell is zero, the lattices are populated with positive and negative index V-point singularities. All the first order degenerate states of V-point singularities can be realized in the same setup by selective excitation of the S-waveplate. PMID- 29041127 TI - Experimental comparison of direct detection Nyquist SSB transmission based on silicon dual-drive and IQ Mach-Zehnder modulators with electrical packaging. AB - We have designed and fabricated a silicon photonic in-phase-quadrature (IQ) modulator based on a nested dual-drive Mach-Zehnder structure incorporating electrical packaging. We have assessed its use for generating Nyquist-shaped single sideband (SSB) signals by operating it either as an IQ Mach-Zehnder modulator (IQ-MZM) or using just a single branch of the dual-drive Mach-Zehnder modulator (DD-MZM). The impact of electrical packaging on the modulator bandwidth is also analyzed. We demonstrate 40 Gb/s (10Gbaud) 16-ary quadrature amplitude modulation (16-QAM) Nyquist-shaped SSB transmission over 160 km standard single mode fiber (SSMF). Without using any chromatic dispersion compensation, the bit error rates (BERs) of 5.4 * 10-4 and 9.0 * 10-5 were measured for the DD-MZM and IQ-MZM, respectively, far below the 7% hard-decision forward error correction threshold. The performance difference between IQ-MZM and DD-MZM is most likely due to the non-ideal electrical packaging. Our work is the first experimental comparison between silicon IQ-MZM and silicon DD-MZM in generating SSB signals. We also demonstrate 50 Gb/s (12.5Gbaud) 16-QAM Nyquist-shaped SSB transmission over 320 km SSMF with a BER of 2.7 * 10-3. Both the silicon IQ-MZM and the DD-MZM show potential for optical transmission at metro scale and for data center interconnection. PMID- 29041128 TI - Explanation of low efficiency droop in semipolar (202-1-) InGaN/GaN LEDs through evaluation of carrier recombination coefficients. AB - We report the carrier dynamics and recombination coefficients in single-quantum well semipolar (202-1-) InGaN/GaN light-emitting diodes emitting at 440 nm with 93% peak internal quantum efficiency. The differential carrier lifetime is analyzed for various injection current densities from 5 A/cm2 to 10 kA/cm2, and the corresponding carrier densities are obtained. The coupling of internal quantum efficiency and differential carrier lifetime vs injected carrier density (n) enables the separation of the radiative and nonradiative recombination lifetimes and the extraction of the Shockley-Read-Hall (SRH) nonradiative (A), radiative (B), and Auger (C) recombination coefficients and their n-dependency considering the saturation of the SRH recombination rate and phase-space filling. The results indicate a three to four-fold higher A and a nearly two-fold higher B0 for this semipolar orientation compared to that of c-plane reported using a similar approach [A. David and M. J. Grundmann, Appl. Phys. Lett. 96, 103504 (2010)]. In addition, the carrier density in semipolar (202-1-) is found to be lower than the carrier density in c-plane for a given current density, which is important for suppressing efficiency droop. The semipolar LED also shows a two fold lower C0 compared to c-plane, which is consistent with the lower relative efficiency droop for the semipolar LED (57% vs. 69%). The lower carrier density, higher B0 coefficient, and lower C0 (Auger) coefficient are directly responsible for the high efficiency and low efficiency droop reported in semipolar (202-1-) LEDs. PMID- 29041129 TI - Particle-particle interactions in large, sparse arrays of randomly distributed plasmonic metal nanoparticles: a two-particle model. AB - A two-particle model is proposed which enables the assessment of particle particle interactions in large, sparse arrays of randomly distributed plasmonic metal nanoparticles of arbitrary geometry in inhomogeneous environments. The two particle model predicts experimentally observed peak splittings in the extinction cross section spectrum for randomly distributed gold nanocones on a TiO2:Er3+ thin film with average center-to-center spacings of 3-5 diameters. The main physical mechanism responsible is found to be interference between the incident field and the far-field component of the single-particle scattered field which is guided along the film. PMID- 29041130 TI - Spectral efficient 64-QAM-OFDM terahertz communication link. AB - We report on a record spectral efficient terahertz communication system using a coherent radio-over-fiber (CRoF) approach. High spectral efficient back-to-back and wireless THz transmission around 325 GHz is experimentally demonstrated using a 64-QAM-OFDM modulation format and a 10 GHz wide wireless channel resulting in a data rate of 59 Gbit/s. PMID- 29041131 TI - Chirp management in silicon-graphene electro absorption modulators. AB - We study the frequency chirp properties of graphene-on-silicon electro-absorption modulators (EAMs). By experimentally measuring the chirp of a 100 um long single layer graphene EAM, we show that the optoelectronic properties of graphene induce a large positive linear chirp on the optical signal generated by the modulator, giving rise to a maximum shift of the instantaneous frequency up to 1.8 GHz. We exploit this peculiar feature for chromatic-dispersion compensation in fiber optic transmission thanks to the pulse temporal lensing effect. In particular, we show dispersion compensation in a 10Gb/s transmission experiment on standard single mode fiber with temporal focusing distance (0-dB optical-signal-to-noise ratio penalty) of 60 km, and also demonstrate 100 km transmission with a bit error rate largely lower than the conventional Reed-Solomon forward error correction threshold of 10-3. PMID- 29041132 TI - Wide bandwidth and flat multiwavelength Brillouin-erbium fiber laser. AB - A wide bandwidth and flat multiwavelength Brillouin-erbium fiber laser is demonstrated experimentally. In the proposed laser setup, the combination of a Brillouin mirror with feedback and a ring cavity with four-wave mixing assistance is realized. The efficiency of Brillouin Stokes lines generation is enhanced by the feedback-based Brillouin mirror structure. The effect of four-wave mixing in highly nonlinear fiber increases the generation of Brillouin Stokes lines in a wider bandwidth. The laser lines over 16 nm bandwidth (i.e 200 channels) within 4.65 dB power difference are obtained. The generated laser lines span from 1534 to 1550 nm with wavelength spacing of 0.08 nm and optical signal-to-noise ratio of at least 15 dB. The laser can also be freely tuned over 32 nm and is stable with power fluctuations of 0.7 dB over 1 hour duration. PMID- 29041133 TI - Nanopore thin film enabled optical platform for drug loading and release. AB - In this paper, a drug loading and release device fabricated using nanopore thin film and layer-by-layer (LbL) nanoassembly is reported. The nanopore thin film is a layer of anodic aluminum oxide (AAO), consisting of honeycomb-shape nanopores. Using the LbL nanoassembly process, the drug, using gentamicin sulfate (GS) as the model, can be loaded into the nanopores and the stacked layers on the nanopore thin film surface. The drug release from the device is achieved by immersing it into flowing DI water. Both the loading and release processes can be monitored optically. The effect of the nanopore size/volume on drug loading and release has also been evaluated. Further, the neuron cells have been cultured and can grow normally on the nanopore thin film, verifying its bio-compatibility. The successful fabrication of nanopore thin film device on silicon membrane render it as a potential implantable controlled drug release device. PMID- 29041134 TI - Depth-filtering in common-path digital holographic microscopy. AB - We demonstrate a method to select different layers in a sample using a low coherent gating approach combined with a stable common-path quantitative phase imaging microscopy setup. The depth-filtering technique allows us to suppress the negative effects generated by multiple interference patterns of overlaying optical interfaces in the sample. It maintains the compact and stable common-path setup, while enabling images with a high phase sensitivity and acquisition speed. We use a holographic microscope in reflective geometry with a non-tunable low coherence light source. First results of this technique are shown by imaging the hardware layer of a standard micro-controller through its thinned substrate. PMID- 29041135 TI - Improved performance of multi-view fringe projection 3D microscopy. AB - Fringe projection 3D microcopy (FP-3DM) plays an increasingly important role in micro manufacturing and measurement. In recent decades, research on FP-3DM has made considerable progress. Nevertheless, some disadvantages arising from the limited depth of field, local specular reflection and occlusion still exist and need to be further addressed. In this paper, a multi-view FP-3DM (MVFP-3DM) is presented. Four imaging branches with the Scheimpflug condition and one vertical projection branch are deployed to establish the system. The system is described with a general imaging model, which is independent of the system configuration. In system calibration, the edge of binary fringe is used to locate the benchmark, which takes advantage of the fact that the edge will keep its position whether it is in focus or out of focus. Furthermore, a group of experiments prove that our proposed MVFP-3DM system can extend measurable range in depth, improve precision in 3D reconstruction and reduce occlusion. PMID- 29041136 TI - Switching terahertz wave with grating-coupled Kretschmann configuration. AB - We present a terahertz wave switch utilizing Kretschmann configuration which consists of high-refractive-index prism-liquid crystal-periodically grooved metal grating. The switching mechanism of the terahertz switch is based on spoof surface plasmon polariton (SSPP) excitation in the attenuated total reflection regime by changing the liquid crystal refractive index. The results highlighted the fact that the feasibility to "tune" the attenuated total reflection terahertz wave intensity by using the external applied bias voltage. The extinction ratio of the terahertz switch reaches 31.48dB. The terahertz switch has good control ability and flexibility, and can be used in potential terahertz free space device systems. PMID- 29041137 TI - Monitoring of continuous-variable quantum key distribution system in real environment. AB - How to guarantee the practical security of continuous-variable quantum key distribution (CVQKD) system has been an important issue in the quantum cryptography applications. In contrast to the previous practical security strategies, which focus on the intercept-resend attack or the Gaussian attack, we investigate the practical security strategy based on a general attack, i.e., an arbitrated individual attack or collective attack on the system by Eve in this paper. The low bound of intensity disturbance of the local oscillator signal for eavesdropper successfully concealing herself is obtained, considering all noises can be used by Eve in the practical environment. Furthermore, we obtain an optimal monitoring condition for the practical CVQKD system so that legitimate communicators can monitor the general attack in real-time. As examples, practical security of two special systems, i.e., the Gaussian modulated coherent state CVQKD system and the middle-based CVQKD system, are investigated under the intercept-resend attacks. PMID- 29041138 TI - WINDOW: wideband demodulator for optical waveforms. AB - Optical communication systems, which operate at very high rates, are often limited by the sampling rate bottleneck. The optical wideband regime may exceed analog to digital converters (ADCs) front-end bandwidth. Multi-channel sampling approaches, such as interleaved ADCs, also known as multicoset sampling in some contexts, have been proposed to sample the wideband signal using several channels. Each channel samples below the Nyquist rate such that the overall sampling rate is preserved. However, this scheme suffers from two practical limitations that make its implementation difficult. First, the inherent anti aliasing filter of the samplers distorts the wideband signal. Second, it requires accurate time shifts on the order of the signal's Nyquist rate, which are challenging to maintain. In this work, we propose an alternative multi-channel sampling scheme, the wideband demodulator for optical waveforms (WINDOW), based on analog RF demodulation, where each channel aliases the spectrum using a periodic mixing function before integration and sampling. We show that intentionally using the inherent ADC filter to perform integration increases the signal to noise ratio (SNR). We demonstrate both theoretically and through numerical experiments that our system outperforms interleaved sampling in terms of signal recovery and symbol estimation in the presence of both thermal and quantization noise but is slightly less robust to timing jitter. The main contribution of this work is the application of RF demodulation concepts proposed in the context of sub-Nyquist sampling, e.g. random demodulator and modulated wideband converter, to optical communication signals in the Nyquist regime. We develop a sampling scheme that presents an alternative for optical links where thermal noise in the receiver is the bottleneck. PMID- 29041139 TI - Crack detection in riveted lap joints using fiber laser acoustic emission sensors. AB - Fiber laser ultrasonic sensors are demonstrated to be capable of measuring acoustic emission generated by cracks in aluminum panels. A single laser sensor is integrated into a riveted lap joint, which is subject to accelerated fatigue. Acoustic emission generated by crack formation in the panel in addition to other acoustic events due to fretting within the joint are clearly resolved by the laser sensor. Localization of an acoustic emission event is demonstrated with a multiplexed array of three laser sensors. This manuscript also calculates the fundamental limit to displacement resolution of the fiber laser sensor and presents measurements of the directional response to Lamb waves. The high measurement resolution and multiplexing capability of the fiber laser ultrasonic sensor makes it an ideal candidate for structural health monitoring applications. PMID- 29041140 TI - Dispersion control of silicon nanophotonic waveguides using sub-wavelength grating metamaterials in near- and mid-IR wavelengths. AB - Controlling the group velocity dispersion of silicon nanophotonic waveguides has been recognized as a key ingredient to enhance the development of various on-chip optical applications. However, the strong wavelength dependence of the dispersion in waveguides implemented on the high index contrast silicon-on-insulator (SOI) platform substantially hinders their wideband operation, which in turn, limits their deployment. In this work, we exploit the potential of non-resonant sub wavelength grating (SWG) nanostructures to perform a flexible and wideband control of dispersion in SOI waveguides. In particular, we demonstrated that the overall dispersion of the SWG-engineered metamaterial waveguides can be tailored across the transparency window of the SOI platform, keeping easy-to-handle single etch step manufacturing. The SWG silicon waveguides overcladded by silicon nitride exhibit significant reduction of wavelength dependence of dispersion, yet providing intriguing and customizable synthesis of various attractive dispersion profiles. These include large normal up to low anomalous operation regimes, both of which could make a great promise for plethora of emerging applications in silicon photonics. PMID- 29041141 TI - Ultra-compact tunable silicon nanobeam cavity with an energy-efficient graphene micro-heater. AB - We propose and experimentally demonstrate an ultra-compact silicon photonic crystal nanobeam (PCN) cavity with an energy-efficient graphene micro-heater. Owing to the PCN cavity with an ultra-small optical mode volume of 0.145 um3, the light-matter interaction is greatly enhanced and the thermo-optic (TO) tuning efficiency is increased. The TO tuning efficiency is measured to be as high as 1.5 nm/mW, which can be further increased to 3.75 nm/mW based on numerical simulations with an optimized structure. The time constants with a rise time constant of taurise = 1.11 MUs and a fall time constant of taufall = 1.47 MUs are obtained in the experiment. PMID- 29041142 TI - Integrated waveguide PIN photodiodes exploiting lateral Si/Ge/Si heterojunction. AB - Germanium photodetectors are considered to be mature components in the silicon photonics device library. They are critical for applications in sensing, communications, or optical interconnects. In this work, we report on design, fabrication, and experimental demonstration of an integrated waveguide PIN photodiode architecture that calls upon lateral double Silicon/Germanium/Silicon (Si/Ge/Si) heterojunctions. This photodiode configuration takes advantage of the compatibility with contact process steps of silicon modulators, yielding reduced fabrication complexity for transmitters and offering high-performance optical characteristics, viable for high-speed and efficient operation near 1.55 MUm wavelengths. More specifically, we experimentally obtained at a reverse voltage of 1V a dark current lower than 10 nA, a responsivity higher than 1.1 A/W, and a 3 dB opto-electrical cut-off frequency over 50 GHz. The combined benefits of decreased process complexity and high-performance device operation pave the way towards attractive integration strategies to deploy cost-effective photonic transceivers on silicon-on-insulator substrates. PMID- 29041143 TI - Photoacoustic signal enhancements from gold nano-colloidal suspensions excited by a pair of time-delayed femtosecond pulses. AB - Photoacoustic signal enhancements were observed with a pair of time-delayed femtosecond pulses upon excitation of gold nanosphere colloidal suspension. A systematic experimental investigation of photoacoustic intensity within the delay time, Deltat = 0 to 15 ns, was carried out. The results revealed a significant enhancement factor of ~2 when the pre-pulse energy is 20-30% of the total energy. Pre-pulse and main pulse energy ratios, Ep(1):Es(2), were varied to determine the optimal ratio that yields to maximum photoacoustic signal enhancement. This enhancement was ascribed to the initial stage of thermalization and bubble generation in the nanosecond time scale. Pre-pulse scattering intensity measurements and numerical finite-difference time-domain calculations were performed to reveal dynamics and light field enchancement, respectively. PMID- 29041144 TI - OLT-centralized sampling frequency offset compensation scheme for OFDM-PON. AB - We propose an optical line terminal (OLT)-centralized sampling frequency offset (SFO) compensation scheme for adaptively-modulated OFDM-PON systems. By using the proposed SFO scheme, the phase rotation and inter-symbol interference (ISI) caused by SFOs between OLT and multiple optical network units (ONUs) can be centrally compensated in the OLT, which reduces the complexity of ONUs. Firstly, the optimal fast Fourier transform (FFT) size is identified in the intensity modulated and direct-detection (IMDD) OFDM system in the presence of SFO. Then, the proposed SFO compensation scheme including phase rotation modulation (PRM) and length-adaptive OFDM frame has been experimentally demonstrated in the downlink transmission of an adaptively modulated optical OFDM with the optimal FFT size. The experimental results show that up to +/- 300 ppm SFO can be successfully compensated without introducing any receiver performance penalties. PMID- 29041145 TI - Tightly focused optical field with controllable photonic spin orientation. AB - The spin angular momentum of photons offers a robust, scalable and high-bandwidth toolbox for many promising applications based upon spin-controlled manipulations of light. In this work, we develop a method to achieve controllable photonic spin orientation within a diffraction limited optical focal spot produced by a high numerical aperture objective lens. The required pupil field is found analytically through reversing the radiation patterns from two electric dipoles located at the focal point of the lens with orthogonal oscillation directions and quadrature phase. The calculated pupil fields are experimentally generated with a vectorial optical field generator. The produced photonic spin orientations are quantitatively evaluated by their spin densities according to the tightly focused electric fields calculated by Richard-Wolf vectorial diffraction theory to demonstrate the validity and capability of the proposed technique. PMID- 29041146 TI - Investigation of bandwidth loading in optical fibre transmission using amplified spontaneous emission noise. AB - The use of spectrally shaped amplified spontaneous emission noise (SS-ASE) as a method for emulating interfering channels in optical fibre transmission systems has been studied. It is shown that the use of SS-ASE leads to a slightly pessimistic performance relative to the use of conventionally modulated interfering channels in the nonlinear regime. The additional nonlinear interference noise (on the channel under test), due to the Gaussian nature of SS ASE, has been calculated using a combination of the Gaussian noise (GN) and enhanced GN (EGN) models for the entire C-band (4.5 THz) and experimentally shown to provide a lower bound for transmission performance. PMID- 29041147 TI - Intensity of vortex modes carried by Lommel beam in weak-to-strong non-Kolmogorov turbulence. AB - We investigate the atmospheric turbulence effects on the propagation of vortex modes carried by Lommel beam. The analytic expression of the received signal and crosstalk mode intensity is derived based on the weak-to-strong non-Kolmogorov turbulence theory. The simulation results show that turbulence with small non Kolmogorov spectrum parameter, small inner-scale factor and large outer-scale factor is more likely to induce modal crosstalk. With the increment of turbulence strength, the crosstalk spreads from adjacent modes to peripheral modes. The received signal intensity can be improved by use of Lommel beam with small asymmetry parameter, low orbital angular momentum quantum number and long wavelength. The results are helpful to the design of orbital angular momentum based free-space optical communication link. PMID- 29041148 TI - Comparison between broadband Bessel beam launchers based on either Bessel or Hankel aperture distribution for millimeter wave short pulse generation. AB - In this paper, a comparison is presented between Bessel beam launchers at millimeter waves based on either a cylindrical standing wave (CSW) or a cylindrical inward traveling wave (CITW) aperture distribution. It is theoretically shown that CITW launchers are better suited for the generation of electromagnetic short pulses because they maintain their performances over a larger bandwidth than those realizing a CSW aperture distribution. Moreover, the wavenumber dispersion of both the launchers is evaluated both theoretically and numerically. To this end, two planar Bessel beam launchers, one enforcing a CSW and the other enforcing a CITW aperture distribution, are designed at millimeter waves with a center operating frequency of f-=60GHz and analyzed in the bandwidth 50 - 70 GHz by using an in-house developed numerical code to solve Maxwell's equations based on the method of moments. It is shown that a monochromatic Bessel beam can be efficiently generated by both the launchers over a wide fractional bandwidth. Finally, we investigate the generation of limited-diffractive electromagnetic pulses at millimeter waves, up to a certain non-diffractive range. Namely, it is shown that by feeding the launcher with a Gaussian short pulse, a spatially confined electromagnetic pulse can be efficiently generated in front of the launcher. PMID- 29041149 TI - Quantum cascade lasers with Y2O3 insulation layer operating at 8.1 um. AB - SiO2 is a commonly used insulation layer for QCLs but has high absorption peak around 8 to 10 um. Instead of SiO2, we used Y2O3 as an insulation layer for DC QCL and successfully demonstrated lasing operation at the wavelength around 8.1 um. We also showed 2D numerical analysis on the absorption coefficient of our DC QCL structure with various parameters such as insulating materials, waveguide width, and mesa angle. PMID- 29041150 TI - Magnetometry via spin-mechanical coupling in levitated optomechanics. AB - We analyze magnetometry using an optically levitated nanodiamond. We consider a configuration where a magnetic field gradient couples the mechanical oscillation of the diamond with its spin degree of freedom provided by a nitrogen vacancy center. First, we investigate the measurement of the position spectrum of the mechanical oscillator. We find that conditions of ultrahigh vacuum and feedback cooling allow a magnetic field gradient sensitivity of 1MUTm-1/Hz. At high pressure and room temperature, this sensitivity degrades and can attain a value of the order of 100mTm-1/Hz. Subsequently, we characterize the magnetic field gradient sensitivity obtainable by maneuvering the spin degrees of freedom using Ramsey interferometry. We find that this technique can offer photon-shot noise and spin-projection noise limited magnetic field gradient sensitivity of 100MUTm 1/Hz. We conclude that this hybrid levitated nanomechanical magnetometer provides a favorable and versatile platform for sensing applications. PMID- 29041151 TI - Sb2S3 thickness-dependent lateral photovoltaic effect and time response observed in glass/FTO/CdS/Sb2S3/Au structure. AB - As an interesting one dimensional ribbon material, Sb2S3 has recently attracted much attention in recent years due to its exciting optical properties. However, Sb2S3-based photovoltaic or photoelectronic devices are still in research, and there are many things unknown to us and need to be well studied. In this work, the glass/FTO/CdS/Sb2S3/Au structures were successfully prepared with different Sb2S3 thicknesses, and the lateral photovoltaic effect (LPE) was firstly observed in this structure, suggesting its great potential in position sensitivity detectors (PSD). It is demonstrated that the crystallinity of Sb2S3 film increases, and Sb2S3 film tends to be vertical ribbon orientation with increasing thickness. Owing to the strong light absorption of the thicker Sb2S3 film and its one dimensional ribbon like crystal structure, the LPE in the glass/FTO/CdS/Sb2S3/Au structure improves with increasing Sb2S3 thickness from 350 nm to 800 nm, and the glass/FTO/CdS/Sb2S3(800 nm) structure exhibits an unprecedented performance with position sensitivity as large as 2230.4 mV/mm. Moreover, the time response of photovoltage was also firstly measured in this structure, it is observed that both the rise time and the fall time decrease with increasing thickness from 350 nm to 800 nm, and then increase quickly for 1100 nm film, further verifing that the Sb2S3 thickness-dependent LPE is strongly dependent on the carriers' longitudinal transport time. The very large LPE and the relatively fast response speed observed in the glass/FTO/CdS/Sb2S3(800 nm)/Au structure unveils its great potential applications in the optoelectronic detectors and also bring an insight that the suitable thickness is very crucial in Sb2S3-based devices. PMID- 29041152 TI - Picosecond difference-frequency-generation in orientation-patterned gallium phosphide. AB - We report the generation of tunable high-repetition-rate picosecond radiation in the mid-infrared using the new quasi-phase-matched nonlinear material of orientation-patterned gallium phosphide (OP-GaP). The source is realized by single-pass difference-frequency-generation (DFG) between the output signal of a picosecond optical parametric oscillator (OPO) tunable across 1609-1637 nm with input pump pulses at 1064 nm in OP-GaP, resulting in tunable radiation across 3040-3132 nm. Using a 40-mm-long crystal, we have generated up to 57 mW of DFG average power at ~80 MHz repetition rate for a pump power of 5 W and signal power of 0.9 W, with >30 mW over >50% of the tuning range. The DFG source exhibits a passive power stability better than 3.2% rms over 1 hour in good spatial beam quality. To the best of our knowledge, this is the first picosecond frequency conversion source based on OP-GaP. PMID- 29041153 TI - Cladding-like waveguide fabricated by cooperation of ultrafast laser writing and ion irradiation: characterization and laser generation. AB - We report the surface cladding-like waveguide fabricated by the cooperation of the ultrafast laser writing and the ion irradiation. The ultrafast laser writes tracks near the surface of the Nd:YAG crystal, constructing a semi-circle columnar structure with a decreased refractive index of - 0.00208. Then, the Nd:YAG crystal is irradiated by the Carbon ion beam, forming an enhanced-well in the semi-circle columnar with an increased refractive index of + 0.0024. Tracks and the enhanced-well consisted a surface cladding-like waveguide. Utilizing this cladding-like waveguide as the gain medium for the waveguide lasing, optimized characterizations were observed compared with the monolayer waveguide. This work demonstrates the refractive index of the Nd:YAG crystal can be well tailored by the cooperation of the ultrafast laser writing and the ion irradiation, which provides an convenient way to fabricate the complex and multilayered photonics devices. PMID- 29041154 TI - Nonreciprocal optical properties of thermal radiation with SiC grating magneto optical materials. AB - We demonstrate the nonreciprocal optical phenomenon of SiC gratings on substrate in infrared band, in which the Lorentz-Drude equations of dielectric constant tensor are proposed to describe the nonreciprocal optical properties as magnetic field applied on the magneto-optical materials, under variable intensity and wavelength. Moreover, the properly designed geometrical factors are proposed, and the good nonreciprocal absorption properties of SiC in thermal radiation wavelength band are presented. The dependence of the absorptivity as a function of different structure parameters, such as thickness of different layers, filling ratios, is studied in details. Furthermore, the electric field intensity is also presented for understanding light coupling, propagation. Numerical evidence shows that the nonreciprocal absorption performance is sensitive to the incidence angle, as well as the magnetic field strength. The relative study is useful to the thermal radiative design in photovoltaic and optical instrument. PMID- 29041155 TI - Hadamard single-pixel imaging versus Fourier single-pixel imaging. AB - Single-pixel imaging which employs active illumination to acquire spatial information is an innovative imaging scheme and has received increasing attentions in recent years. It is applicable to imaging at non-visible wavelengths and imaging under low light conditions. However, single-pixel imaging has once encountered problems of low reconstruction quality and long data acquisition time. Hadamard single-pixel imaging (HSI) and Fourier single-pixel imaging (FSI) are two representative deterministic model based techniques. Both techniques are able to achieve high-quality and efficient imaging, remarkably improving the applicability of single-pixel imaging scheme. In this paper, we compare the performances of HSI and FSI with theoretical analysis and experiments. The results show that FSI is more efficient than HSI while HSI is more noise-robust than FSI. Our work may provide a guideline for researchers to choose suitable single-pixel imaging technique for their applications. PMID- 29041156 TI - Optical coherence tomography and non-linear microscopy for paintings - a study of the complementary capabilities and laser degradation effects. AB - This paper examines for the first time the potential complementary imaging capabilities of Optical coherence tomography (OCT) and non-linear microscopy (NLM) for multi-modal 3D examination of paintings following the successful application of OCT to the in situ, non-invasive examination of varnish and paint stratigraphy of historic paintings and the promising initial studies of NLM of varnish samples. OCT provides image contrast through the optical scattering and absorption properties of materials, while NLM provides molecular information through multi-photon fluorescence and higher harmonics generation (second and third harmonic generation). OCT is well-established in the in situ non-invasive imaging of the stratigraphy of varnish and paint layers. While NLM examination of transparent samples such as fresh varnish and some transparent paints showed promising results, the ultimate use of NLM on paintings is limited owing to the laser degradation effects caused by the high peak intensity of the laser source necessary for the generation of non-linear phenomena. The high intensity normally employed in NLM is found to be damaging to all non-transparent painting materials from slightly scattering degraded varnish to slightly absorbing paint at the wavelength of the laser excitation source. The results of this paper are potentially applicable to a wide range of materials given the diversity of the materials encountered in paintings (e.g. minerals, plants, insects, oil, egg, synthetic and natural varnish). PMID- 29041157 TI - Birefringent masks that are optimal for generating bottle fields: erratum. AB - A sign error in the handedness of the rotating eigenpolarization pattern is corrected. This correction implies that a bottle field can be produced using just a stress-engineered optical element, without the need for a half-wave plate. PMID- 29041158 TI - Dissipative soliton resonance mode-locked all-polarization-maintaining double clad Er:Yb fiber laser. AB - Our first demonstration of an all-PM fiber double clad erbium-ytterbium figure-8 laser mode-locked in a dissipative soliton resonance regime is presented. The laser generated uJ-level rectangular-shaped pulses with a maximum average output power of 1 W at 994 kHz repetition rate. The proposed configuration was characterized for two values resonator lengths - 44 and 205 m (total net dispersion -0.9274 ps2 and -4.3084 ps2, respectively) to verify the possibility of non-complex tailoring of pulse parameters. The long-term stability of the all PM configuration and self-starting of the mode-locking was experimentally confirmed by exposing the laser to forces of -5G to 7G magnitude on a vibration generator. PMID- 29041159 TI - On chip chirality-distinguishing beamsplitter. AB - The chirality of photons plays a fundamental role in light-matter interactions. However, a limiting factor in photonic integrated circuits is the lack of a miniaturized component, which can distinguish the chirality in a low cost and integrated manner. Herein we numerically demonstrate a chirality-distinguishing beamsplitter that can address this challenge. It consists of an integrated polarization rotator and a linear polarization beamsplitter, which together can fulfill the task of distinguishing and splitting left- and right-handed quasi circularly polarized modes on a chip with an ultra-broadband operation range from 1.45 MUm to 1.65 MUm. Owning to the reciprocity, the device can emit photons with selectable spin angular momentum depending on the chosen feeding waveguide. The device is compatible with complementary metal-oxide semiconductor technology and it may open up new avenues in the fields of on-chip nano-photonics, bio-photonics and quantum information science. PMID- 29041160 TI - Multi-wavelength lenses for terahertz surface wave. AB - Metasurface-based surface wave (SW) devices working at multi-wavelength has been continuously arousing enormous curiosity recently, especially in the terahertz community. In this work, we propose a multi-layer metasurface structure composed of metallic slit pairs to build terahertz SW devices. The slit pair has a narrow bandwidth and its response frequency can be altered by its geometric parameter, thereby suppressing the frequency crosstalk and reducing the difficulty of design. By elaborately tailoring the distribution of the slit pairs, a series of achromatic SW lenses (SWLs) working at 0.6, 0.75 and 1 THz are experimentally demonstrated by the near field scanning terahertz microscope (NSTM) system. In addition, a wavelength-division-multiplexer (WDM) is further designed and implemented, which is promising in building multiplexed devices for plasmonic circuits. The structure proposed here cannot only couple the terahertz wave from free space to SWs, but also control its propagation. Moreover, our findings demonstrate the great potential to design multi-wavelength plasmonic metasurface devices, which can be extended to microwave and visible frequencies as well. PMID- 29041161 TI - Single-frequency fiber amplifier at 1.5 um with 100 W in the linearly-polarized TEM00 mode for next-generation gravitational wave detectors. AB - Next-generation gravitational wave detectors require single-frequency and high power lasers at a wavelength of 1.5 um addressing a set of demanding requirements such as linearly-polarized TEM00 radiation with low noise to run for long periods. In this context, fiber amplifiers in MOPA configuration are promising candidates to fulfill these requirements. We present a single-frequency monolithic Er:Yb co-doped fiber amplifier (EYDFA) at 1.5 um with a linearly polarized TEM00 output power of 100 W. The EYDFA is pumped off-resonant at 940 nm to enhance the Yb-to-Er energy transfer efficiency and enable higher ASE threshold. We also performed numerical simulations to investigate the off resonant pumping scheme and confirm the corresponding experimental results. PMID- 29041162 TI - Biaxial crystal beta-BaTeMo2O9: theoretical analysis and the feasibility as high efficiency acousto-optic Q-switch. AB - The high efficiency acousto-optic modulators become indispensable in photonics and optoelectronics for the pulse generation and signal modulation in optical display and telecommunications. In this paper, the validity and feasibility of the biaxial crystals as acousto-optic mediums have been theoretically analyzed and confirmed by experiments using a biaxial crystal of beta-BaTeMo2O9. The diffraction angle and diffraction efficiency of the beta-BaTeMo2O9 acousto-optic Q-switch are determined to be 1.420 degrees and 78.1%, which are comparable with that of TeO2 acousto-optic modulator at the identical operating wavelength of 1064 nm and 100 MHz, respectively. The minimum of the modulated pulse width can be achieved to be 6 ns at 5 kHz with Nd:YVO4 as the gain medium. The results not only provide an excellent acousto-optic medium, but also explore the field of biaxial acousto-optic medium for device fabrications. PMID- 29041163 TI - Passively mode-locked Yb fiber laser with PbSe colloidal quantum dots as saturable absorber. AB - A passively mode-locked Yb fiber laser using PbSe colloidal quantum dots (CQDs) as saturable absorber (SA) is experimentally demonstrated. An all-fiber experimental scheme was designed to understand the SA property of PbSe CQDs. The non-saturable loss, modulation depth, and saturable intensity of SA measured were 23%, 7%, and 12 MW/cm2, respectively. The PbSe CQDs were sandwiched in a fiber connector, which was further inserted into the Yb fiber laser for mode-locking. As the pump power up to 110 mW, the self-starting mode-locking pulses were observed. Under the pump power of 285 mW, a maximum average laser power with fundamental mode-locking operation was obtained to be 21.3 mW. In this situation, the pulse full width at half maximum (FWHM), pulse repetition rate, and spectral FWHM were measured to be 70 ps, 8.3 MHz, and 4.5 nm, respectively. PMID- 29041164 TI - Effects of imperfect elements on resolution and sensitivity of quantum metrology using two-mode squeezed vacuum state. AB - It has been demonstrated that using two-mode squeezed vacuum state for phase estimation can break the Heisenberg limit. Our results reveal that the two-mode squeezed vacuum state is also applied to the optical rotation angle measurement. In our scheme, the resolution and sensitivity of the optical rotation angle signal are the same as the case of phase estimation. For the parameter estimation, phase or rotation angle, we discuss the influences of several imperfect factors on the resolution and sensitivity. First, the effect that the upper limit of photon-number resolving has on the maximum amount of available quantum Fisher information has been analyzed. Then, we have also studied the impacts of both the transmission efficiency in the transmission process and the detection efficiency on the detection results. Finally, conditions where all of the above imperfect elements are taken into account at the same time have also been explored. Additionally, other imperfect factors such as squeezing efficiency and dark counts are briefly discussed. PMID- 29041165 TI - Rotated echoes of molecular alignment: fractional, high order and imaginary. AB - We report experimental observations of rotated echoes of alignment induced by a pair of time-delayed and polarization-skewed femtosecond laser pulses interacting with an ensemble of molecular rotors. Rotated fractional echoes, rotated high order echoes and rotated imaginary echoes are directly visualized by using the technique of coincident Coulomb explosion imaging. We show that the echo phenomenon not only exhibits temporal recurrences but also spatial rotations determined by the polarization of the time-delayed second pulse. The dynamics of echo formation is well described by the laser-induced filamentation in rotational phase space. The quantum-mechanical simulation shows good agreements with the experimental results. PMID- 29041166 TI - Exponential fringe pattern projection approach to gamma-independent phase computation without calibration for gamma nonlinearity in 3D optical metrology. AB - This paper presents a method that expresses the fringe pattern as an exponential function and a mathematical model for gamma-independent phase computation. The method was compared to: (i) conventional phase measurement without nonlinearity correction, and (ii) conventional gamma correction by pattern pre-distortion based on an input-to-projector camera-output look-up table. The pre-distorted and exponential methods achieved large reduction in error compared to conventional computation with no gamma correction. The advantage of the exponential method is that no system gamma nonlinearity calibration procedure or information is required. This reduces optical system setup before measurement and permits easier use of off-the-shelf projectors. PMID- 29041167 TI - Optical biochemical sensor based on half-circled microdisk laser diode. AB - In this study, a half-circled cavity based microdisk laser diode is proposed and demonstrated experimentally for an integrated photonic biochemical sensor. Conventional microdisk sensors have limitations in optical coupling and reproducibility. In order to overcome these drawbacks, we design a novel half circled micro disk laser (HC-MDL) which is easy to manufacture and has optical output directionality. The Q-factor of the fabricated HC-MDL was measured as 7.72 * 106 using the self-heterodyne method and the side mode suppression ratio was measured as 23 dB. Moreover, gas sensing experiments were performed using the HC MDL sensor. A wavelength shift response of 14.21 pm was obtained for 100 ppb dimethyl methylphosphonate (DMMP) gas and that of 14.70 pm was obtained for 1 ppm ethanol gas. These results indicate the possibility of highly sensitive gas detection at ppb levels using HC-MDL. This attractive feature of the HC-MDL sensor is believed to be very useful for a wide variety of optical biochemical sensor applications. PMID- 29041168 TI - Single-path Sagnac interferometer with Dove prism for orbital-angular-momentum photon manipulation. AB - Orbital angular momentum (OAM) is an important resource in high-dimensional quantum information processing, as its quantum number can be infinite. Dove prism (DP) is a most common tool to manipulate OAM light. However, the Dove prism changes the polarization of the photon states and decreases the sorting fidelity of the interferometer. In this work, we analyze the polarization-dependent effect of the DP on OAM light manipulation in the normal single-path Sagnac interferometers (SPSIs) with beam splitter (BS) and polarizing beam splitter (PBS). The results demonstrate that the BS SPSI is more sensitive to the input polarization and the specific parameters of the DP. We have also proposed and realized a modified BS SPSI, of which the sorting fidelity can be 100% in principle and is independent on the input polarization and the transmission matrix of the DP. The experiments demonstrate that the fidelity of the modified BS SPSI is about 5%~10% higher than that of the normal one. The modified BS SPSI is easy to implement (only two more half-wave plates are required) and is stable for free running at the scale of several hours. These merits make the structure suitable for applications in critical quantum information processing tasks, such as quantum cryptography. PMID- 29041169 TI - Planar waveguide moire grating. AB - We propose a new kind of planar waveguide Bragg grating structure, i.e., planar waveguide moire grating (MG), which is formed by two transverse adjacent gratings with slightly different Bragg wavelengths. It is found that this kind of structure shows the same light properties as the conventional MG that is realized by superimposing two Bragg gratings. Because the proposed MG structure is a planar pattern, the fabrication becomes much easier if applying a semiconductor microfabrication process, which is very beneficial for its applications in photonic integrated devices. Similar to the well-known Vernier effect, the coupling coefficient distribution can be easily adjusted by the alignment of the two adjacent gratings. Consequently, some special grating profiles can be achieved, such as perfect apodization with two sides of the coupling coefficient approaching zero. One important potential application of these specific features is the distributed feedback (DFB) semiconductor laser for improved properties, such as reduced spatial-hole burning and more power extraction. Some design examples are also given in this paper. PMID- 29041170 TI - Local phase method for designing and optimizing metasurface devices. AB - Metasurfaces have attracted significant attention due to their novel designs for flat optics. However, the approach usually used to engineer metasurface devices assumes that neighboring elements are identical, by extracting the phase information from simulations with periodic boundaries, or that near-field coupling between particles is negligible, by extracting the phase from single particle simulations. This is not the case most of the time and the approach thus prevents the optimization of devices that operate away from their optimum. Here, we propose a versatile numerical method to obtain the phase of each element within the metasurface (meta-atoms) while accounting for near-field coupling. Quantifying the phase error of each element of the metasurfaces with the proposed local phase method paves the way to the design of highly efficient metasurface devices including, but not limited to, deflectors, high numerical aperture metasurface concentrators, lenses, cloaks, and modulators. PMID- 29041171 TI - Bandwidth density as a figure of merit for few-mode multi-core fibers. AB - We investigated the relationships between the capacity limit and various figures of merit (spatial channel density, aggregate effective area ratio to cladding area, and bandwidth density) of few-mode multi-core fibers (FM-MCFs) where the modes in each core are weakly coupled. The capacity limit was estimated based on the Gaussian noise model for nonlinear impairment of single-mode fibers by neglecting crosstalk and intermodal nonlinear effects for simplicity; therefore, the estimated capacity can be the upper bound of the weakly-coupled FM-MCF capacity. When we take account of the transmission wavelength band of the FM-MCFs and the wavelength band where efficient amplification is available, the bandwidth density had a good correlation to the estimated capacity, but the spatial channel density and the aggregate effective area ratio often overestimate the FM-MCF capacity. Thus, we propose the bandwidth density for the figure of merit of FM MCFs rather than the spatial channel density or the aggregate effective area ratio. We also investigated the relationship between the bandwidth density and fiber design, and found that the supporting transmission bandwidth and the core count are the dominant factors for the bandwidth density, and the mode count per core has a small impact for the bandwidth density, when the core Delta is fixed. PMID- 29041172 TI - Efficient block-wise algorithm for compressive holography. AB - Compressive holography is a relatively time-consuming image estimation in convex optimized problem. We propose an efficient block-wise algorithm to limit the searching space and reduce the calculation time while keeping the reconstruction quality. The effective anti-aliasing boundary of the sub-hologram is located to determine the block size for compressive reconstruction in the total-variation two-step iterative shrinkage/thresholding algorithm. Padded sub-holograms could be reconstructed in parallel by using multi-core processors. Compared with the traditional compressive holography, the block-wise algorithm could take approximately 1/50 of the reconstruction time and achieve an improved reconstruction quality. PMID- 29041173 TI - Non-sky polarization-based dehazing algorithm for non-specular objects using polarization difference and global scene feature. AB - Photographic images taken in foggy or hazy weather (hazy images) exhibit poor visibility and detail because of scattering and attenuation of light caused by suspended particles, and therefore, image dehazing has attracted considerable research attention. The current polarization-based dehazing algorithms strongly rely on the presence of a "sky area", and thus, the selection of model parameters is susceptible to external interference of high-brightness objects and strong light sources. In addition, the noise of the restored image is large. In order to solve these problems, we propose a polarization-based dehazing algorithm that does not rely on the sky area ("non-sky"). First, a linear polarizer is used to collect three polarized images. The maximum- and minimum-intensity images are then obtained by calculation, assuming the polarization of light emanating from objects is negligible in most scenarios involving non-specular objects. Subsequently, the polarization difference of the two images is used to determine a sky area and calculate the infinite atmospheric light value. Next, using the global features of the image, and based on the assumption that the airlight and object radiance are irrelevant, the degree of polarization of the airlight (DPA) is calculated by solving for the optimal solution of the correlation coefficient equation between airlight and object radiance; the optimal solution is obtained by setting the right-hand side of the equation to zero. Then, the hazy image is subjected to dehazing. Subsequently, a filtering denoising algorithm, which combines the polarization difference information and block-matching and 3D (BM3D) filtering, is designed to filter the image smoothly. Our experimental results show that the proposed polarization-based dehazing algorithm does not depend on whether the image includes a sky area and does not require complex models. Moreover, the dehazing image except specular object scenarios is superior to those obtained by Tarel, Fattal, Ren, and Berman based on the criteria of no reference quality assessment (NRQA), blind/referenceless image spatial quality evaluator (BRISQUE), blind anistropic quality index (AQI), and e. PMID- 29041174 TI - Miniature all-optical probe for large synthetic aperture photoacoustic-ultrasound imaging. AB - A miniature all-optical probe for high-resolution photoacoustic (PA)-ultrasound (US) imaging using a large synthetic aperture is developed. The probe consists of three optical fibers for PA excitation, US generation, and detection of acoustic waves, respectively. The fiber for PA excitation has a large numerical aperture (NA) for wide-angle laser illumination. On the other hand, the fiber with a carbon black-polydimethylsiloxane composite coated on the end face of the optical fiber is used for wide-angle US transmission through laser-US conversion. Both the excited PA and backscattered US signals are detected by a fiber-tip Fabry Perot cavity for wide-angle acoustic detection. The probe outer diameter is only ~2 mm. The synergy of the three optical fibers makes a large-NA synthetic aperture focusing technique for high-resolution PA and US imaging possible. High PA lateral resolutions of 104-154 MUm and high US lateral resolutions of 64-112 MUm over a depth range of > 4 mm are obtained. Compared with other existing miniature PA-US probes, to our knowledge, our probe achieves by far the best performance in terms of lateral resolutions and imaging depth range. The constructed probe has potential for endoscopic and intravascular imaging applications that require PA and US contrasts with high resolutions over a large depth range. PMID- 29041175 TI - Initial conditions for dissipative solitons in a strict polarization-controlled passively mode-locked Er-Fiber laser. AB - We report the dynamics of dissipative solitons in a ring cavity passively mode locked fiber laser with a strict control of the polarization state. We study the relation between the polarization state of the pulses propagating in the cavity and the regimes of generation. We have found that at pulse ellipticities between 5 degrees and 15 degrees , the laser generates one bunch of pulses in the cavity, while at higher ellipticities the laser generates multiple bunches. At constant ellipticity we rotated the polarization azimuth and observed a regime transition from the generation of noise-like pulses (NLP) to that of soliton crystal. The NLP regime was found when the azimuth was rotated towards smaller low-power transmission through the polarizer. The number of solitons in the soliton crystal also depended on the azimuth in a straightforward way: the higher the initial transmission, the bigger the number of solitons. PMID- 29041176 TI - Multi-subcarrier flexible bit-loading enabled capacity improvement in meshed optical networks with cascaded ROADMs. AB - We propose to use adaptive bit loading based on time-domain hybrid QAM (TDHQ) to maximize the capacity of subcarrier-multiplexing (SCM) systems in meshed optical networks with cascaded reconfigurable optical add and drop multiplexers (ROADMs). Note that the capacity is defined as the achievable net bit rate at the soft decision FEC threshold of BER = 2 * 10-2 in this work. The capacity improvement is first numerically and experimentally demonstrated in a 4-subcarrier SCM system with an aggregate symbol rate of 34.94 Gbaud. Compared with the conventional SCM system using uniform standard QAM, the proposed system can achieve an average capacity increase of 31.75% and 26.1% over various link conditions in simulations and experiments, respectively. Furthermore, we demonstrate that the proposed SCM system can better approach the channel capacity in the presence of narrow inline optical filtering. An average capacity improvement of 7.59% is also reported over all 17 ROADMs cases from 1 to 17 by simulations at OSNR = 21 dB, compared with its single carrier counterpart using TDHQ. PMID- 29041177 TI - Optical hot-spots in boron-nitride nanotubes at mid infrared frequencies: one dimensional localization due to random-scattering. AB - We report experimental observations of optical hot-spots associated with surface phonon polaritons in boron nitride nanotubes. As revealed by near-field optical microscopy, the hot-spots have mode volumes as small as ?2.7*10-6lambda03 (lambda0 is the wavelength of the exciting light in vacuum), which are in the deep subwavelength regime. Such strong light-trapping leads to ultrahigh field enhancement with a Purcell factor of ?1.8 * 106. Remarkably, the hot-spots are not induced by designed structures, but by random scatterings with the rough gold substrate. The ultrahigh field enhancement can be used to improve nonlinear infrared spectroscopy, thermal emitters and detectors, and label-free molecule sensing at nanoscales. PMID- 29041178 TI - Electrically tunable two-dimensional metasurfaces at near-infrared wavelengths. AB - A novel, electrically tunable metasurface comprising a periodic array of disk shaped silicon resonators is proposed. The dielectric resonators can be individually manipulated by applying external bias, inducing the complex permittivity modulation of indium tin oxide (ITO) embedded in the middle of the silicon nanodisks. Simulation data shows a reflectance shift from 61% to 8% at lambda = 1111nm and a phase shift of 272.9 degrees at lambda = 1127nm with an applied voltage in the range of -4 ~4V. In addition, by simply adjusting the resonator geometry, any operating wavelength from 850nm to 1150nm can be achieved with the metasurface. PMID- 29041179 TI - Polarisation structuring of broadband light. AB - Spatial structuring of the intensity, phase and polarisation of light is useful in a wide variety of modern applications, from microscopy to optical communications. This shaping is most commonly achieved using liquid crystal spatial light modulators (LC-SLMs). However, the inherent chromatic dispersion of LC-SLMs when used as diffractive elements presents a challenge to the extension of such techniques from monochromatic to broadband light. In this work we demonstrate a method of generating broadband vector beams with dynamically tunable intensity, phase and polarisation over a bandwidth of 100 nm. We use our system to generate radially and azimuthally polarised vector vortex beams carrying orbital angular momentum, and beams whose polarisation states span the majority of the Poincare sphere. We characterise these broadband vector beams using spatially and spectrally resolved Stokes measurements, and detail the technical and fundamental limitations of our technique, including beam generation fidelity and efficiency. The broadband vector beam shaper that we demonstrate here may find use in applications such as ultrafast beam shaping and white light microscopy. PMID- 29041180 TI - Generalized pupil function of a compound X-ray refractive lens. AB - Quality of a refractive compound X-ray lens can be limited by imperfections in surfaces of unit lenses and stacking precision. In general case both the lens transmission and optical aberrations define properties of a beam in the lens exit plane; together they can be expressed in terms of the generalized pupil function. In this work we measure this function for a diamond single crystal compound refractive lens. Consequently, we apply the pupil function to evaluate the performance of the examined compound refractive X-ray lens. A number of practically important conclusions can be drawn from such analysis. PMID- 29041181 TI - Optical modeling based on mean free path calculations for quantum dot phosphors applied to optoelectronic devices: comment. AB - A recent publication by Shin et al. [Opt. Express25, A113 (2017)] contains an optical simulation model for the quantum dots (QDs) nanophosphor based on the mean free path concept. We show that their measured scattering pattern of QDs is misleading, which would result in a fatal deviation between simulated and actual values. PMID- 29041183 TI - Enhancement of higher-order plasmonic modes in a dense array of split-ring resonators. AB - It is demonstrated that higher-order plasmonic modes in the split-ring resonators (SRRs) are strongly enhanced when SRRs are arranged in a densely spaced two dimensional array. The mode enhancement results from the near-field electrical coupling between the adjacent resonators. The effect is most pronounced in narrow gap SRRs which allows to observe experimentally plasmon modes up to the seventh order. In the array of narrow gap SRRs, the fifth-order resonance demonstrates high Q-factor, high resonance strength and wide tunability which opens up attractive features for practical applications of planar SRR structures. PMID- 29041182 TI - Influence of an Al2O3 surface coating on the response of polymeric waveguide sensors. AB - The responses of a polymer ridge waveguide Young interferometer with and without a bilayer of Al2O3/TiO2, fabricated by atomic layer deposition, are studied and compared when applied as an aqueous chemical sensor. The phase shift of the guided mode, as a result of the change in refractive index of the cover medium, is monitored. The results indicate that the over-coating affects the linearity of the sensor response. The effect of concentration on the linearity of the sensor response is investigated by applying different concentrations of water-ethanol solution. Although the performance of the sensor is improved by the additional layers, the study reveals a non-monotonic behavior of the device. We show that it comes mainly from the adsorption of ethanol molecules on the surface of the films. Such an understanding of the platform is crucial for sensing of analytes involving polar molecules. PMID- 29041184 TI - Free-standing double-layer terahertz band-pass filters fabricated by femtosecond laser micro-machining. AB - We report on the fabrication and transmission properties of free-standing single layer and double-layer THz bandpass filters. These filters are fabricated on aluminum foils using femtosecond laser micro-machining. The aluminum foils are periodically patterned with cross apertures with a total area of 1.75*1.75 cm2, also known as frequency-selective surfaces. Their terahertz transmission properties were simulated using the FDTD method and measured using a time-domain terahertz spectroscopy system. The simulation results agree with the measurements results very well. The performance of single-layer bandpass filters is as good as the commercial equivalents on the market. The double-layer filters show extraordinary transmission peaks with changing spacing between the two layers. We show the contour map of the electric field distribution across the apertures, and ascribe the new transmission peaks to the interference and coupling of surface plasmon polaritons between the two layers. PMID- 29041185 TI - Measurement-based meshing, basis selection, and prior assignment in chemical species tomography. AB - Gas distributions imaged by chemical species tomography (CST) vary in quality due to the discretization scheme, arrangement of optical paths, errors in the measurement model, and prior information included in reconstruction. There is currently no mathematically-rigorous framework for comparing the finite bases available to discretize a CST domain. Following from the Bayesian formulation of tomographic inversion, we show that Bayesian model selection can identify the mesh density, mode of interpolation, and prior information best-suited to reconstruct a set of measurement data. We validate this procedure with a simulated CST experiment, and generate accurate reconstructions despite limited measurement information. The flow field is represented using the finite element method, and Bayesian model selection is used to choose between three forms of polynomial support for a range of mesh resolutions, as well as four priors. We show that the model likelihood of Bayesian model selection is a good predictor of reconstruction accuracy. PMID- 29041186 TI - Broadband, efficient, and robust quasi-parametric chirped-pulse amplification. AB - Quasi-parametric chirped pulse amplification (QPCPA) is a new scheme that enables the amplification of chirped signal pulses without back conversion by depleting the idler pulses. In this paper, we present a numerical study on the bandwidth, efficiency, and robustness of QPCPA. Self-locked phase among the interacting waves is found to be the underlying mechanism for the suppression of back conversion, which allows signal efficiency approaching to the quantum limit even under the phase-mismatch condition, and thus greatly increases the phase-mismatch tolerance of QPCPA. We demonstrate that QPCPA can break through the trade-off between the efficiency and bandwidth encountered in conventional optical parametric amplification, hence supporting highly efficient amplification of few cycle pulses. PMID- 29041187 TI - Solution of the inhomogeneous Maxwell's equations using a Born series. AB - An algorithm for the numerical solution of the inhomogeneous Maxwell's equations is presented. The algorithm solves the inhomogeneous vector wave equation of the electric field by writing the solution as a convergent Born series. Compared to two dimensional finite difference time domain calculations, solutions showing the same accuracy can be calculated more than three orders of magnitude faster. PMID- 29041188 TI - Optical gain analysis of GaAs-based InGaAs/GaAsSbBi type-II quantum wells lasers. AB - A novel active region design based on a type-II InGaAs/GaAsSbBi quantum wells on GaAs substrate is proposed and studied in this work. The band structures of the InGaAs/GaAsSbBi type-II quantum wells are studied based on a self-consistent 14 band k.p model. The electronic and optical properties of dilute-bismide InGaAs/GaAsSbBi type-II quantum well structures are investigated theoretically. Moreover, the room temperature gain characteristics of the laser active region are studied with different Bi composition. The theoretical results indicate that adding Bi into InGaAs/GaAsSb type-II active regions on GaAs substrate extends the laser emission wavelength beyond 1550nm without sacrificing the peak gain value. It is shown that these type-II quantum well structures are suitable for 1550nm wavelength region operation at room temperature. PMID- 29041189 TI - 47-fs Kerr-lens mode-locked Cr:ZnSe laser with high spectral purity. AB - We report on a room-temperature Kerr-lens mode-locked Cr:ZnSe femtosecond laser operating at around 2.4 MUm emission wavelength. Self-starting nearly transform limited pulse trains with a minimum duration of 47 fs, corresponding to six optical cycles, and average output power of 0.25 W are obtained with repetition frequencies in the range from 140 to 300 MHz. The femtosecond pulse train is characterized by high-spectral purity and low time jitter. PMID- 29041190 TI - Differential optical shadow sensor for sub-nanometer displacement measurement and its application to drag-free satellites. AB - We present a method for 3D sub-nanometer displacement measurement using a set of differential optical shadow sensors. It is based on using pairs of collimated beams on opposite sides of an object that are partially blocked by it. Applied to a sphere, our 3-axis sensor module consists of 8 parallel beam-detector sets for redundancy. The sphere blocks half of each beam's power in the nominal centered position, and any displacement can be measured by the differential optical power changes amongst the pairs of detectors. We have experimentally demonstrated a displacement sensitivity of 0.87nm/Hz at 1 Hz and 0.39nm/Hz at 10 Hz. We describe the application of the module to the inertial sensor of a drag-free satellite, which can potentially be used for navigation, geodesy and fundamental science experiments as well as ground based applications. PMID- 29041191 TI - Eight-wave mixing parametrical amplification. AB - We investigate parametrically amplified eight-wave mixing (PA-EWM). The double dressed PA-four-wave mixing (PA-FWM) is the superposition of one PA-FWM process, two different PA-six-wave mixing (PA-SWM) processes (PA-SWM1 and PA-SWM2 with external dressing field 776nm and 795nm, respectively) and one PA-EWM process. When the phases among FWM, SWM1, SWM2 and EWM change from 0 to pi, the double dressed PA-FWM could gradually satisfy the pure enhancement (all 0), partial enhancement and suppression (mixture of 0 and pi), or pure suppression condition (all pi). The outcomes of the investigation can potentially contribute to the development of multi-channel quantum information processing and high dimensional stereoscopic imaging. PMID- 29041192 TI - Random medium model for producing optical coherence lattice. AB - Within the Markov approximation, we introduce a novel class of random media which can produce a scattered field with optical lattice patterns. It is shown that the array dimension, lobes intensity profile, and the periodicity of the optical lattice can be flexibly controlled by altering the correlation parameters of scattering potential of the random medium. In addition, a new method for designing random media is proposed. It is shown that the convolution of any two legitimate degrees of potential correlation can lead to a new degree of potential correlation corresponding to a new scattered intensity distribution. An example of a novel family of random media is cited to demonstrate the result. PMID- 29041193 TI - Achieving diffraction-limited nanometer-scale X-ray point focus with two crossed multilayer Laue lenses: alignment challenges. AB - We discuss misalignment-induced aberrations in a pair of crossed multilayer Laue lenses used for achieving a nanometer-scale x-ray point focus. We thoroughly investigate the impacts of two most important contributions, the orthogonality and the separation distance between two lenses. We find that misalignment in the orthogonality results in astigmatism at 45 degrees and other inclination angles when coupled with a separation distance error. Theoretical explanation and experimental verification are provided. We show that to achieve a diffraction limited point focus, accurate alignment of the azimuthal angle is required to ensure orthogonality between two lenses, and the required accuracy is scaled with the ratio of the focus size to the aperture size. PMID- 29041194 TI - Highly efficient machining of non-circular freeform optics using fast tool servo assisted ultra-precision turning. AB - Freeform optics has been regarded as the next generation of the optical components, especially those with non-circular apertures are playing an increasingly significant role in scanning field and specialized optical system. However, there still exist challenges to machine non-circular optical freeform surface. This paper is focused on highly efficiently generating freeform surfaces with optical surface quality by ultra-precision turning using a fast tool servo (FTS). A systematic strategy of machining smooth freeform surfaces with rectangular aperture is proposed in this paper. The contour of freeform optics is decomposed and assigned to the motions of slide and FTS back-and-forth. An optimized model is established for deriving the profile of the rotational component to cater for the capacity of FTS. Tool path reconstruction is carried out to generate a smooth tool trajectory and modified the contour to cater for the stroke of FTS. Simulation is adopted to analyze the machining property of a typical rectangular freeform surface. A rectangular freeform surface is efficiently machined via the proposed method, where a micron level profile error and nanometric finish in Ra are realized. Characteristics of reflection are analyzed via experiment and simulation. Prospects of such machining approach are discussed to provide guidance to future study. PMID- 29041195 TI - Demonstration of Bessel-like beam with variable parameters generated using cross phase modulation. AB - We propose a new method to generate Bessel-like beam using cross-phase modulation. The hot rubidium atomic sample is shown to have the ability to vary a Gaussian beam (probe beam) into a Bessel-like beam when the sample is illuminated with a counter-propagating Gaussian beam (pump beam) tuned close to the atomic resonances. It is demonstrated that the Bessel-like beam exhibits self-healing after encountering an obstruction on the beam path. The parameters of the Bessel like beam are found to be easily adjusted by the pump beam power and sample temperature. Moreover, this method is even applicable to the probe beam of low power, having more practical value than the method using self-phase modulation which needs high input beam power. The merits of variable parameter, no requirement for input beam power, simple setup, and low cost would make this method of significance in a variety of applications, especially in those areas where Bessel beam power is needed to be low and parameter to be adjusted easily without changing the setup. PMID- 29041196 TI - Envilab: Measuring phytoplankton in-vivo absorption and scattering properties under tunable environmental conditions. AB - Optical remote sensing of phytoplankton draws on distinctive spectral features which can vary with both species and environmental conditions. Here, we present a set-up (Envilab) for growing phytoplankton under well-defined light, temperature and nutrient conditions. The custom-built light source enables creation of light with spectral composition similar to natural aquatic environments. Spectral tuning allows for light quality studies. Attenuation is monitored with a spectrometer in transmission mode. In combination with automated spectrophotometer and fluorimeter measurements, absorption and excitation emission-fluorescence spectra are recorded. The set-up opens the door for systematic studies on phytoplankton optical properties and physiology. PMID- 29041197 TI - Performance analysis of FSO communications under LOS blockage. AB - We analyze the performance of a free-space optical (FSO) link affected by atmospheric turbulence and line-of-sight (LOS) blockage. For this purpose, the atmospheric turbulence induced fading is modeled by the M distribution, which includes the Gamma-Gamma distribution as special case. We exploit the fact that the physical interpretation of the M distribution allows to split the optical energy through the propagation link into three different components: two coherent components and one incoherent scatter component. Based on this separation, we derive novel analytical expressions for the probability density function (PDF), for the cumulative distribution function (CDF) and for the moment generating function (MGF) of the M distribution under the temporary blockage of the coherent components, hereinafter referred to as LOS blockage. Further, a new closed-form expression for the outage probability (OP) under LOS blockage is derived in terms of the turbulence model parameters and the LOS blockage probability. By means of an asymptotic analysis, this expression is simplified in the high-SNR regime and the OP in terms of the diversity order and diversity gain is then deduced. Obtained results show that the impact of the LOS blockage on the OP strongly depends on the intensity of the turbulence and on the LOS blockage probability. PMID- 29041198 TI - Determination of optical properties of turbid medium from relative interstitial CW radiance measurements using the incomplete P3 approximation. AB - Interstitial determination of the tissue optical properties is important in biomedicine, especially for interstitial laser therapies. Continuous wave (CW) radiance techniques which examine light from multiple directions have been proposed as minimally invasive methods for determining the optical properties under an interstitial probe arrangement. However, both the fitting algorithm based on the P3 approximation and the analytical method based on the diffusion approximation (DA), which are currently used recovery algorithms, cannot extract the optical properties of tissue with low transport albedos accurately from radiance measurements. In this paper, we proposed an incomplete P3 approximation for the radiance, the P3in for short, which is the asymptotic part of the solution for the P3 approximation. The relative differences between the P3in and the P3 were within 0.48% over a wide range of clinically relevant optical properties for measurements at source detector separations (SDS) from 5 mm to 10 mm and angles from 0 degrees to 160 degrees . Based on the P3in, we developed an analytical method for extracting the optical properties directly using simple expressions constructed from the radiance measurements at only two SDSs and four angles. The developed recovery algorithm was verified by simulated and experimental radiance data. The results show that both the absorption and reduced scattering coefficients were recovered accurately with relative errors within 5.28% and 3.86%, respectively, from the simulated data and with relative errors within 10.82% and 10.67%, respectively, from the experimental data over a wide range of albedos from 0.5 to 0.99. Since the developed P3in-based radiance technique can obtain the optical properties rapidly from the measurements at only two SDSs and four angles, it is expected to be used for in vivo and in situ determination of the optical properties in online treatment planning during laser therapies. PMID- 29041199 TI - Spectral engineering of subwavelength-grating-based contradirectional couplers. AB - We tailor the spectral characteristics of silicon photonic contradirectional couplers (Contra-DCs), where the design of the coupler is based on placing a subwavelength grating (SWG) waveguide next to a strip waveguide. By tapering the gap distance between the SWG and strip waveguides, we demonstrate a compromise between sidelobe suppression and pass-band/stop-band extinction ratio such that the performance of the device as a potential optical (de)multiplexer is improved. The designs with different pass-band bandwidths of 12 nm, 9 nm, and 6 nm show 10 dB to 20 dB sidelobe suppression ratio and 15 dB to 35 dB extinction ratio. We also obtain a resonant transmission peak in the stop-band of the spectral response of the device by introducing a pi phase shift into the gratings of the SWG waveguide. The resonant peak has 1 nm bandwidth and 7 dB extinction ratio, where the use of the SWG waveguide in the structure of such coupler allows the characteristics of the resonant peak to be highly sensitive to the cladding material, which is of strong desire in integrated sensing applications. PMID- 29041200 TI - Graphene metamaterial spatial light modulator for infrared single pixel imaging. AB - High-resolution and hyperspectral imaging has long been a goal for multi dimensional data fusion sensing applications - of interest for autonomous vehicles and environmental monitoring. In the long wave infrared regime this quest has been impeded by size, weight, power, and cost issues, especially as focal-plane array detector sizes increase. Here we propose and experimentally demonstrated a new approach based on a metamaterial graphene spatial light modulator (GSLM) for infrared single pixel imaging. A frequency-division multiplexing (FDM) imaging technique is designed and implemented, and relies entirely on the electronic reconfigurability of the GSLM. We compare our approach to the more common raster-scan method and directly show FDM image frame rates can be 64 times faster with no degradation of image quality. Our device and related imaging architecture are not restricted to the infrared regime, and may be scaled to other bands of the electromagnetic spectrum. The study presented here opens a new approach for fast and efficient single pixel imaging utilizing graphene metamaterials with novel acquisition strategies. PMID- 29041201 TI - Single lens logarithmic confocal distance measurement array. AB - This article presents a method and results based on confocal microscopy for non contact axial distance measurement from a lens to a partially reflective surface using an array of photodetectors. The ratio of the photodetector signals is independent of the surface reflectivity and light source variations over a range of distance. By using logarithmic photodetector signals the object distance is proportional to the difference between the signals. This technique potentially allows measurement of sound produced by single living cells, or the high velocity surface shape changes in the hohlraum in laser fusion experiments. PMID- 29041202 TI - Maximum a posteriori-based depth sensing with a single-shot maze pattern. AB - This study addressed the general problem of correspondence retrieval for single shot depth sensing where the coded features cannot be detected perfectly. The traditional correspondence retrieval technique can be regarded as maximum likelihood estimation with a uniform distribution prior assumption, which may lead to mismatches for two types of insignificant features: 1) incomplete features that cannot be detected completely because of edges, tiny objects, and many depth variations, etc.; and 2) distorted features disturbed by environmental noise. To overcome the drawback of the uniform distribution assumption, we propose a maximum a posteriori estimation-based correspondence retrieval method that uses the significant features as priors to estimate the weak or missing features. We also propose a novel monochromatic maze-like pattern, which is more robust to ambient illumination and the colors in scenes than the traditional patterns. Our experimental results demonstrate that the proposed system performs better than the popular RGB-D cameras and traditional single-shot techniques in terms of accuracy and robustness, especially with challenging scenes. PMID- 29041203 TI - Span length and information rate optimisation in optical transmission systems using single-channel digital backpropagation. AB - The optimisation of span length when designing optical communication systems is important from both performance and cost perspectives. In this paper, the optimisation of inter-amplifier spacing and the potential increase of span length at fixed information rates in optical communication systems with practically feasible nonlinearity compensation schemes have been investigated. It is found that in DP-16QAM, DP-64QAM and DP-256QAM systems with practical transceiver noise limitations, single-channel digital backpropagation can allow a 50% reduction in the number of amplifiers without sacrificing information rates compared to systems with optimal span lengths and linear compensation. PMID- 29041204 TI - Dual focus polarisation splitting lens. AB - We have successfully designed and measured a unique polarisation splitting lens which focuses the orthogonal linear polarisations side-by-side in the lens focal plane. This concept can find application in situations where there is limited space for the beam splitters and focusing optics that are required for incoherent detectors. PMID- 29041205 TI - Mid-infrared light emission > 3 um wavelength from tensile strained GeSn microdisks. AB - GeSn alloys with Sn contents of 8.4 % and 10.7 % are grown pseudomorphically on Ge buffers on Si (001) substrates. The alloys as-grown are compressively strained, and therefore indirect bandgap. Undercut GeSn on Ge microdisk structures are fabricated and strained by silicon nitride stressor layers, which leads to tensile strain in the alloys, and direct bandgap photoluminescence in the 3-5 um gas sensing window of the electromagnetic spectrum. The use of pseudomorphic layers and external stress mitigates the need for plastic deformation to obtain direct bandgap alloys. It is demonstrated, that the optically pumped light emission overlaps with the methane absorption lines, suggesting that GeSn alloys are well suited for mid-infrared integrated gas sensors on Si chips. PMID- 29041206 TI - Fifteen meter long uninterrupted filaments from sub-terawatt ultraviolet pulse in air. AB - A technique is presented to create uninterrupted long ultraviolet filaments in air using appropriately structured transmission mesh. The mesh with different cell sizes was inserted into 10-cm parallel beam of 0.2-J, 248-nm, and 870-fs pulse propagating along ~100-m corridor. Transverse positions of multiple filaments formed by the optimum size cells were reproducible within at least 15 m along the propagation path. 3D+time simulations confirmed uninterrupted plasma channels with fixed positions in the transverse space similar to the experiment. Unoptimized cell size resulted in filaments shifting towards the cell center and destruction of uninterrupted filaments. PMID- 29041207 TI - Complex beam shaping by cascaded conical diffraction with intercalated polarization transforming elements. AB - Cascaded conical diffraction where optical elements modifying the local polarization state are intercalated between the aligned biaxial crystals is analyzed theoretically in the framework of paraxial diffraction theory. The obtained expressions are verified and confirmed experimentally for the case of a two-crystal cascade intercalated by a polarizer or a wave plate. The present approach can be used to realize a variety of vector beams with complex beam shapes composed of concentric rings with strongly modulated azimuthal intensity distribution. A potentially very fast switching of the overall beam shape is possible if the intercalated elements are electro-optically tunable retarders. PMID- 29041208 TI - Passive compensation of laser-induced higher-order aberrations in high-power NIR optics. AB - We report a method for passive compensation of thermally induced focal shifts and higher-order aberrations of NIR laser processing optics. Theoretical considerations are made on the elimination of aberrations including polarization effects using a multi-stage compensation element with optical flats of both positive and negative dn/dT. A compensation layout is designed and optimized utilizing numerical simulations of thermo-optic effects. Based on these findings, optical elements for compensation of an F-Theta objective are manufactured. By means of wavefront measurements and beam caustic measurements the feasibility of simultaneous passive compensation of focal shifts and higher-order aberrations is demonstrated. PMID- 29041209 TI - Structure of polarization singularities of a light beam at triple frequency generated in isotropic medium by singularly polarized beam. AB - The components of electric field of the third harmonic beam, generated in isotropic medium with cubic nonlinearity by a monochromatic light beam carrying polarization singularity of an arbitrary type, are found analytically. The relation between C-points characteristics in the fundamental and signal beams are determined, as well as the impact of the phase mismatch on the shape of the C lines. PMID- 29041210 TI - 910-m propagation of THz ps pulses through the Atmosphere. AB - We measured the atmospheric propagation of ps THz pulses with a 0.4-THz bandwidth through a 910-m distance; the pulse delay corresponded to 255 pulses down the pulse train of the mode-locked ring laser excitation pulses. The complexity of the atmosphere requires the use of the complete theory of Essen and Froome to compare the measured time shifts due to both the dry atmosphere and water vapor with theoretical calculations. A new procedure involving the measurement of phase in the frequency domain is introduced and achieves comparable results for the calculated time shifts, compared to the previous direct measurements of time shifts. When the THz pulses were sequentially measured for a distance of 186 and 910 m at the same weather condition, the time variation due to atmospheric turbulence between the two pulses of the 910 m measurement was up to 4 times larger than that between the two pulses of the 186 m measurement. THz long path WVD studies are necessary to evaluate proposed applications in the atmosphere, such as communications and monitoring pollutants and dangerous gases. PMID- 29041211 TI - Through-the-coating femtosecond laser inscription of very short fiber Bragg gratings for acoustic and high temperature sensing applications. AB - Very short Type I and Type II Bragg gratings, on the order of 100 um in length, are written through the protective polyimide coating of high NA and standard single mode silica optical fibers with infrared femtosecond pulses and a phase mask. By exploiting the transverse walk-off of apertured diffracted beams produced by the phase mask and a slit placed proximate the mask, complex grating structures are fabricated and characterized. These gratings are suitable for structural health monitoring based on acoustic measurements or localized high temperature measurements. PMID- 29041212 TI - Analogue of double-Lambda-type atomic medium and vector plasmonic dromions in a metamaterial. AB - We consider an array of the meta-atom consisting of two cut-wires and a split ring resonator coupled with an electromagnetic field with two polarization components. We show that the system can be taken as a classical analogue of the atomic medium of a double-Lambda-type four-level configuration coupled with four laser fields and working under the condition of electromagnetically induced transparency, exhibits an effect of plasmon induced transparency (PIT), and displays a similar behavior of atomic four-wave mixing (FWM). We show also that with the PIT and FWM effects the system can support vector plasmonic dromions when a nonlinear varactor is mounted onto the each gap of the split-ring resonator. Our work not only gives a plasmonic analogue of the FWM in coherent atomic systems but also provides the possibility for obtaining new type of plasmonic excitations in metamaterials. PMID- 29041213 TI - Very large photoresponsiviy and high photocurrent linearity for Ge-dot/SiO2/SiGe photoMOSFETs under gate modulation. AB - We report a novel visible-near infrared photoMOSFET containing a self-organized, gate-stacking heterostructure of SiO2/Ge-dot/SiO2/SiGe-channel on Si substrate that is simultaneously fabricated in a single oxidation step. Our typical photoMOSFETs exhibit very large photoresponsivity of 1000-3000A/W at low optical power (< 0.1MUW) or large photocurrent gain of 103-108A/A with a wide dynamic power range of at least 6 orders of magnitude (nW-mW) linearity at 400-1250 nm illumination, depending on whether the photoMOSFET operates at VG = + 3- + 4.5V or -1- + 1V. Numerical simulations reveal that photocarrier confinement within the Ge dots and the SiGe channel modifies the oxide field and the surface potential of SiGe, significantly increasing photocurrent and improving linearity. PMID- 29041214 TI - Single cell three-channel wavelength division multiplexing in visible light communication. AB - This paper examines the design of a prototype of a single cell three-channel visible light communication (VLC) based on wavelength division multiplexing for a radio frequency (RF)-free indoor healthcare. For a low complexity application, a single red green blue (RGB)-type white light-emitting diode (LED) and a single color sensor are adopted. An active low pass filter is utilized for robust light detection to eliminate ambient light and low frequency noise. The incoming tri color lights are separated by an adopted color sensor and simultaneously demodulated by a receiver processor. Then, the collected data are monitored in real-time and analyzed to provide the necessary medical attention to the concerned patient. PMID- 29041215 TI - Simplified model of spectral absorption by non-algal particles and dissolved organic materials in aquatic environments. AB - Absorption by non-algal particles (NAP, ad) and colored dissolved organic matter (CDOM, ag) are frequently modeled by exponential functions of wavelength, either separately or as a sum. We present a new representation of NAP-plus-CDOM absorption adg based on the stretched exponential function adg(lambda) = A exp{ [s(lambda - lambdao)]beta}, whose parameter beta can be considered a measure of optical heterogeneity. A double exponential representation of adg can be fit extremely well by a stretched exponential for all plausible parameter combinations, despite having one fewer free parameter than a double exponential. Fitting two published compilations of in situ adg data - one at low spectral resolution (n = 5, lambda = 412-555 nm) and one at high spectral resolution (n = 201, lambda = 300-700 nm) - the stretched exponential outperforms the single exponential, double exponential, and a power law. We thereby conclude that the stretched exponential is the preferred model for adg absorption in circumstances when NAP and CDOM cannot be separated, such as in remote sensing inversions. PMID- 29041216 TI - Modeling of carrier transport in organic light emitting diode with random dopant effects by two-dimensional simulation. AB - To model the carrier transport in organic light-emitting diodes (OLEDs) with random dopant effects in the emitting layer, two-dimensional simulation was used. By including the Gaussian shape density of states and field-dependent mobility in the Poisson and drift-diffusion solver, the carrier transport, trapping in the dopant state, and radiative recombination were accurately modeled. To examine the model, the current-voltage characteristics of organic light-emitting devices were compared. The host material in the emitting layer was 2,2-bis(1-phenyl-1H benzo[d]imidazol-2-yl)biphenyl (BImBP), which was doped with bis[2-(4,6 difluorophenyl)pyridinato-C2,N](picolinato)iridium(III) (FIrpic) at various concentrations. By including the random doping model, the trend of mobility was altered and the radiative efficiency fitted experimental values well. PMID- 29041217 TI - Generation of high-power spatially structured beams using vertical external cavity surface emitting lasers. AB - In this paper, we demonstrate the generation of high-power and spatially structured beams using vertical external cavity surface emitting lasers (VECSEL). At the fundamental wavelength, an intracavity mode-control element is first employed to generate a range of Hermite-Gaussian (HG) modes in a linear cavity. The same HG modes are then excited and frequency doubled in a V-cavity geometry to generate a rich variety of high-power spatially structured beams. The results compare well with our numerical modeling. PMID- 29041218 TI - Oil pollution discrimination by an inelastic hyperspectral Scheimpflug lidar system. AB - An inelastic hyperspectral Scheimpflug lidar system is developed for range resolved oil pollution detection and discrimination. A theory of system parametric design is built for aquatic circumstances, and laser-induced fluorescence spectra with an excitation wavelength of 446 nm are employed to detect oil pollution. Seven kinds of typical oil samples are tested and well distinguished using the principal component analysis (PCA) and linear discriminant analysis (LDA) methods. It has been shown that blue laser diodes (LD) have great potential for oil pollution detection, and our system could be further utilized for more applications in both marine and terrestrial environments. PMID- 29041219 TI - Stability of period-one (P1) oscillations generated by semiconductor lasers subject to optical injection or optical feedback. AB - We study the stability of period-one (P1) oscillations experimentally generated by semiconductor lasers subject to optical injection (OI) and by those subject to optical feedback (OF). With unique advantages of broad frequency tuning range and large sideband rejection ratio, P1 oscillations can be useful in applications such as photonic microwave generation, radio-over-fiber communication, and laser Doppler velocimeter. The stability of the P1 oscillations is critical for these applications, which can be affected by spontaneous emission and fluctuations in both temperature and injection current. Although linewidths of P1 oscillations generated by various schemes have been reported, the mechanisms and roles which each of the OI and the OF play have however not been investigated in detail. To characterize the stability of the P1 oscillations generated by the OI and the OF schemes, we measure the linewidths and linewidth reduction ratios (LRRs) of the P1 oscillations. The OF scheme has a narrowest linewidth of 0.21 +/- 0.03 MHz compared to 4.7 +/- 0.6 MHz in the OI scheme. In the OF scheme, a much larger region of LRRs higher than 90% is also found. The superior stability of the OF scheme is benefited by the fact that the P1 oscillations in the OF scheme are originated from the undamped relaxation oscillation of a single laser and can be phase-locked to one of its external cavity modes, whereas those in the OI scheme come from two independent lasers which bear no phase relation. Moreover, excess P1 linewidth broadening in the OI scheme caused by fluctuation in injection parameters associated with frequency jitter and relative intensity noise (RIN) is also minimized in the OF scheme. PMID- 29041220 TI - Thermally ruggedized ITO transparent electrode films for high power optoelectronics. AB - We present two strategies to minimize laser damage in transparent conductive films. The first consists of improving heat dissipation by selection of substrates with high thermal diffusivity or by addition of capping layer heatsinks. The second is reduction of bulk energy absorption by lowering free carrier density and increasing mobility, while maintaining film conductance with thicker films. Multi-pulse laser damage tests were performed on tin-doped indium oxide (ITO) films configured to improve optical lifetime damage performance. Conditions where improvements were not observed are also described. When bulk heating is not the dominant damage process, discrete defect-induced damage limits damage behavior. PMID- 29041221 TI - Modal noise in an integrated photonic lantern fed diffraction-limited spectrograph. AB - In an attempt to develop a streamlined astrophotonic instrument, we demonstrate the realization of an all-photonic device capable of both multimode to single mode conversion and spectral dispersion on an 8-m class telescope with efficient coupling. The device was a monolithic photonic spectrograph which combined an integrated photonic lantern and an efficient arrayed waveguide grating device. During on-sky testing, we discovered a previously unreported type of noise that made spectral extraction and calibration extremely difficult. The source of the noise was traced to a wavelength-dependent loss mechanism between the feed fiber's multimode near-field pattern and the modal acceptance profile of the integrated photonic lantern. Extensive modeling of the photonic components replicates the wavelength-dependent loss, and demonstrates an identical effect on the final spectral output. We outline that this could be mitigated by directly injecting into the integrated photonic lantern. PMID- 29041222 TI - Coherent detection of THz laser signals in optical fiber systems. AB - Terahertz (THz) coherent detectors are crucial for the stabilization and measurement of the properties of quantum cascade lasers (QCLs). This paper describes the exploitation of intra-cavity sum frequency generation to up-convert the emission of a THz QCL to the near infrared for detection with fiber optic coupled components alone. Specifically, a low cost infrared photodiode is used to detect a radio frequency (RF) signal with a signal-to-noise ratio of approximately 20dB, generated by beating the up-converted THz wave and a near infrared local oscillator. This RF beat note allows direct analysis of the THz QCL emission in time and frequency domains. The application of this technique for QCL characterization is demonstrated by analyzing the continuous tuning of the RF signal over 2 GHz, which arises from mode tuning across the QCL's operational current range. PMID- 29041223 TI - Optical constants and structural properties of thin gold films. AB - We report a comprehensive experimental study of optical and electrical properties of thin polycrystalline gold films in a wide range of film thicknesses (from 20 to 200 nm). Our experimental results are supported by theoretical calculations based on the measured morphology of the fabricated gold films. We demonstrate that the dielectric function of the metal is determined by its structural morphology. Although the fabrication process can be absolutely the same for different films, the dielectric function can strongly depend on the film thickness. Our studies show that the imaginary part of the dielectric function of gold, which is responsible for optical losses, rapidly increases as the film thickness decreases for thicknesses below 80 nm. At the same time, we do not observe a noticeable dependence of optical constants on the film thickness for thicker samples. These findings establish design rules for thin-film plasmonic and nanophotonic devices. PMID- 29041224 TI - Curvature effect on polarization of light emitted from chiral carbon nanotubes. AB - We investigate that effect of the curvature on induced hybridization and modification of emission profiles for each chiral's index single-wall carbon nanotubes (SWCNTs). According to the Schwinger two particle pair state method, we provide an analytical expression by calculating polar of spot intensity as a function of the polar angle. The emission profiles for indirect transition have an asymmetric shape as a function of the electron wave vector of the axis direction kt and depend on the chiral index. Here we show polarization-dependent, given analytically by expanding the matrix element into the scalar product of the light polarization vector and the dipole vector. These scalar products having a maximum value depend on the summation of phase factors of spinors of electrons in the conduction band Phic and valence band Phiv. In the case of direct transition, dipole vector tube axis is maximum at the phase summation of Phic and Phiv is 0 or 2pi. In contrast, the maximum dipole vector circumference is obtained at the phase summation of pi for the case of indirect transition. We can predict a strong emission peak and emission profiles which can be used to identify optical transitions in an individual SWCNT with different chiral indices experimentally. PMID- 29041225 TI - Photovoltaic Ge/SiGe quantum dot mid-infrared photodetector enhanced by surface plasmons. AB - We report the fabrication and characterization of a multilayer Ge quantum dot detector grown on Si1-xGex virtual substrate (x = 0.18) for photovoltaic mid-wave infrared photodetection. Detector displays an over 100% photovoltaic response enhancement as compared to a conventional Ge/Si device due to smaller hole effective mass in the SiGe barriers. A further enhancement in sensitivity is achieved by excitation of surface plasmon polariton waves in a Ge/SiGe photodetector coupled with a two-dimensional plasmonic structure. The plasmonic resonance induced photocurrent enhancement is found to be larger when the incident infrared light illuminates the detector from its substrate side. At zero bias and 90 K, the responsivity of 40 mA/W and peak detectivity of 1.4 * 1011 cm.Hz1/2/W are determined at a wavelength of 4 um. PMID- 29041226 TI - Turbulence heterodyne coherent mitigation of orbital angular momentum multiplexing in a free space optical link by auxiliary light. AB - A novel scheme is proposed to mitigate the atmospheric turbulence effect in free space optical (FSO) communication employing orbital angular momentum (OAM) multiplexing. In this scheme, the Gaussian beam is used as an auxiliary light with a common-path to obtain the distortion information caused by atmospheric turbulence. After turbulence, the heterodyne coherent detection technology is demonstrated to realize the turbulence mitigation. With the same turbulence distortion, the OAM beams and the Gaussian beam are respectively utilized as the signal light and the local oscillation light. Then the turbulence distortion is counteracted to a large extent. Meanwhile, a phase matching method is proposed to select the specific OAM mode. The discrimination between the neighboring OAM modes is obviously improved by detecting the output photocurrent. Moreover, two methods of beam size adjustment have been analyzed to achieve better performance for turbulence mitigation. Numerical results show that the system bit error rate (BER) can reach 10-5 under strong turbulence in simulation situation. PMID- 29041227 TI - Polarization attraction of 10-Gb/s NRZ-BPSK signal in a highly nonlinear fiber. AB - Polarization attraction of a 10-Gb/s non-return-to-zero binary phase-shift keyed (NRZ-BPSK) signal has been successfully demonstrated for the first time in a counter-propagating beam configuration using a continuous-wave pump, in a highly nonlinear fiber, by utilizing the Kerr nonlinear cross-polarization process inherent to that fiber. The efficacy of mitigating polarization-dependent loss across polarization-sensitive devices was emulated with a linear polarizer located before the receiver. The receiver sensitivity penalty at 10-9 bit-error rate relative to the baseline NRZ-BPSK signal was < 0.5 dB, when polarization attraction was employed for a polarization-scrambled signal (after achieving a degree of polarization > 90%). The results confirm that polarization attraction is independent of modulation format. PMID- 29041228 TI - Orbital angular momentum mode groups multiplexing transmission over 2.6-km conventional multi-mode fiber. AB - Twisted light carrying orbital angular momentum (OAM) is a special kind of structured light that has a helical phase front, a phase singularity, and a doughnut intensity profile. Beyond widespread developments in manipulation, microscopy, metrology, astronomy, nonlinear and quantum optics, OAM-carrying twisted light has seen emerging application of optical communications in free space and specially designed fibers. Instead of specialty fibers, here we show the direct use of a conventional graded-index multi-mode fiber (MMF) for OAM communications. By exploiting fiber-compatible mode exciting and filtering elements, we excite the first four OAM mode groups in an MMF. We demonstrate 2.6 km MMF transmission using four data-carrying OAM mode groups (OAM0,1, OAM+1,1/OAM 1,1, OAM+2,1, OAM+3,1). Moreover, we demonstrate two data-carrying OAM mode groups multiplexing transmission over the 2.6-km MMF with low-level crosstalk free of multiple-input multiple-output digital signal processing (MIMO-DSP). The demonstrations may open up new perspectives to fiber-based OAM communication/non communication applications using already existing conventional fibers. PMID- 29041229 TI - Time-reversed and reciprocal second-harmonic generation with pump depletion. AB - The time-reversed second-harmonic generation in one-dimensional nonlinear photonic crystals has been theoretically studied without the undepleted pump approximation. A simple criterion has been deduced which determines the energy flow. Based on it, two kinds of structures with different symmetries are presented to realize the nonlinear time reversal effect. A completely reciprocal nonlinear response is also found in the same process. Furthermore, a multi section-cascaded structure is proposed to realize the nonlinear time reversal at any given position. PMID- 29041230 TI - Compact tunable electromagnetically induced transparency and Fano resonance on silicon platform. AB - We propose and demonstrate an on-chip coupling resonant system to generate electromagnetically induced transparency (EIT)-like effect and Fano resonance on silicon platform. It is composed of a microring resonator (MRR) and two cascaded Sagnac-loop mirrors (SLMs) assisted Fabry-Perot (FP) cavity on silicon-on insulator. According to the coupling conditions of the MRR, two cases are studied theoretically. When the MRR is over coupling, EIT-like transmission can be observed. In contrast, Fano resonances can be generated by the condition of under coupling. In the experiment, the add-drop MRR is under coupling, leading to a sharp asymmetric line shape for Fano resonance. The resonance wavelength of the MRR can be dynamically tuned based on thermal-optic effects by tuning the micro heater. The experiment results show Fano resonances with maximum extinction ratio (ER) of 23.22 dB and maximum slope rate (SR) of 252 dB/nm. Moreover, the wavelength of Fano resonance can be shifted widely with a tuning efficiency of 0.2335 nm/mW. PMID- 29041231 TI - Bistable four-wave mixing response in a semiconductor quantum dot coupled to a photonic crystal nanocavity. AB - We perform a theoretical study of the bistable four-wave mixing (FWM) response in a coupled system comprised of a semiconductor quantum dot (SQD) and a photonic crystal (PC) nanocavity in which the SQD is embedded. It is shown that the shape of the FWM spectrum can switch among single-peaked, double-peaked, triple-peaked, and four-peaked arising from the vacuum Rabi splitting and the exciton-nanocavity coupling. Especially, we map out bistability phase diagrams within a parameter subspace of the system, and find that it is easy to turn on or off the bistable FWM response by only adjusting the excitation frequency or the pumping intensity. Our results offer a feasible means for measuring the SQD-PC nanocavity coupling strength and open a new avenue to design optical switches and memories. PMID- 29041232 TI - Mid-infrared optical properties of chalcogenide glasses within tin-antimony selenium ternary system. AB - In this work, we investigated the mid-infrared (MIR) optical properties of selenide (Se-based) chalcogenide glasses (ChGs) within an As- and Ge-free system, namely the environment-friendly and low-cost tin-antimony-selenium (Sn-Sb-Se, SSS) ternary system, which has not been systematically studied to the best of our knowledge. As compared to ChGs within those conventional Se-based systems, SSS ChGs were found to exhibit extended infrared transmittance range as well as larger linear refractive index (n0). Femtosecond Z-scan measurements show the presence of evident three-photon absorption from Urbach absorption of the SSS ChGs at MIR wavelength, which resonantly enhanced the nonlinear refractive behavior and resulted in large nonlinear refractive index (n2). PMID- 29041233 TI - Circular-core single-mode polymer waveguide for high-density and high-speed optical interconnects application at 1550 nm. AB - We demonstrate circular-core 1550 nm single-mode polymer waveguides with a graded index profile fabricated by commercially available UV-curable epoxies using so called mosquito method. The relative index difference ?n of the waveguides was designed to be 0.46% in order to guarantee both single-mode operation and good compatibility with standard single-mode fiber. Accurate refractive index tuning of monomer for core construction was realized by mixing the core and cladding epoxies properly. The core pitch of the waveguides was chosen to be 50 MUm to satisfy the requirements for high-density on-board optical interconnects. Both the optical characteristics and high-speed performances of the waveguides were comprehensively studied at 1550 nm. The measured transmission and coupling loss are 0.79 dB/cm and 0.78 dB, respectively. The waveguides exhibit an inter-channel crosstalk as low as -45 dB, and a 3 dB misalignment tolerance larger than +/- 4 MUm on the input and output facet in both horizontal and vertical directions. NRZ signal at a data rate of 25 Gb/s was transmitted over a 10 cm-long waveguide. There is no obvious degradation on the eye diagram due to the insertion of the waveguide and error free transmission was successfully obtained. Our results imply that the fabricated single-mode polymer waveguides have good potential in high-density and high-speed optical interconnects application. PMID- 29041234 TI - Simultaneous generation of multiple vector beams on a single SLM. AB - Complex vector light fields, classically entangled in polarization and phase, have become ubiquitous in a wide variety of research fields. This has triggered the demonstration of a wide variety of generation techniques. Of particular relevance are those based on computer-controlled devices due to their great flexibility. In particular, spatial light modulators have demonstrated their high capabilities to generate any vector beam, with various spatial profiles and polarization distributions. Here, we put forward a novel technique that exploits the superposition principle in optics to enable the simultaneous generation of many vector beams using a single digital hologram. As proof-of-principle, we demonstrated the simultaneous generation of sixteen vector vortex beams with various polarization distributions and spatial shapes on a single SLM, each with their own spatial shape and polarization distribution. PMID- 29041235 TI - Crosstalk mitigation using pilot assisted least square algorithm in OFDM-carrying orbital angular momentum multiplexed free-space-optical communication links. AB - In this paper, we experimentally investigate the performance of crosstalk mitigation for 16-ary quadrature amplitude modulation orthogonal frequency division multiplexing (16QAM-OFDM) signals carrying orbital angular momentum (OAM) multiplexed free-space-optical communication (FSO) links using the pilot assisted Least Square (LS) algorithm. At the demodulating spatial light modulators (SLMs), we launch the distorted phase holograms which have the information of atmospheric turbulence obeying the modified Hill spectrum. And crosstalk can be introduced by these holograms with the experimental verification. The pilot assisted LS algorithm can efficiently improve the quality of system performance, the points of constellations get closer to the reference points and around two orders of magnitude improvement of bit-error rate (BER) is obtained. PMID- 29041236 TI - High responsivity coherent photonic receiver integrating an SOA, a 90 degrees hybrid, and high speed UTC photodiodes. AB - We demonstrate a single polarization monolithically integrated coherent receiver on an InP substrate with a SOA preamplifier, a 90 degrees optical hybrid, and four 40 GHz UTC photodiodes. Record performances with responsivity above 4 A/W with low imbalance <1 dB and error free detection of 32 Gbaud QPSK signals were simultaneously demonstrated. PMID- 29041237 TI - Gouy phase induced polarization transition of focused vector vortex beams. AB - We propose a common criterion for the effect of Gouy phase on the distinct polarization transition of focused vector vortex beams (VVBs). Such polarization transition is strongly dependent on the parity of the smaller modulus between VVB's polarization order and topological charge. Significantly, the cross polarization transitions are observed at areas where the two spin components with equi-intensity are exactly overlapping and the Gouy phase difference (GPD) between them equals to (2k + 1)pi, k is an integer. As a whole, the focal field shows radially variant polarization distributions resulting from the unequal intensity proportion of the two spin components. This polarization transition holds potential in modifying the patterns of periodic surface structure induced by femtosecond vector beams. PMID- 29041238 TI - Interferometer based on strongly coupled multi-core optical fiber for accurate vibration sensing. AB - We report on the use of a simple interferometer built with strongly-coupled core optical fiber for accurate vibration sensing. Our multi-core fiber (MCF) is designed to mode match a standard single-mode optical fiber (SMF). The interferometer consists of a low insertion loss SMF-MCF-SMF structure where only two super-modes interfere. The polymer coating of the MCF was structured and the interferometer was sandwiched between a flat piece and a V-groove. In this manner our device is highly sensitive to force with sensitivity reaching -4225 pm/N. To make the MCF interferometer sensitive to vibrations the flat piece was allowed to move, thus, its periodic movements exert cyclic localized pressure on the MCF which makes the interference pattern to shift periodically. Our sensors can be used to monitor vibrations in a broad frequency range with the advantage that the measurements are unaffected by temperature changes. PMID- 29041239 TI - Subcutaneous veins depth measurement using diffuse reflectance images. AB - Intravenous (IV) procedures are often difficult due to the poor visualization of subcutaneous veins. Because existing vein locators lack the ability to assess depth, and also because mis-punctures and poor vascular access remain problematic, we propose an imaging system that employs diffuse reflectance images at three isosbestic wavelengths to measure both the depth and thickness of subcutaneous veins. This paper describes the proposed system as well as proof-of principle experimental demonstrations. We initially introduce the working principle and structure of the system. All measurements were based on the Monte Carlo (MC) method and accomplished by referring an optical density (OD) ratio to a multi-layer diffuse reflectance model. Results were all validated by comparative ultrasound measurements. Experimental trials included 11 volunteers who were subjected to both ultrasound measurements and the proposed optical process to validate the system's applicability. However, the unreliability of the "thickness" measurement of the vein may be due to the fact that the veins have collapsible walls - so excess pressure by the transducer will give a false thickness. PMID- 29041240 TI - Diode-pumped Tm:KY(WO4)2 laser passively modelocked with a GaSb-SESAM. AB - We present the first diode-pumped modelocked thulium (Tm3+) laser based on a double-tungstate crystalline gain material. The solid-state laser consists of a Tm:KY(WO4)2 crystal as gain medium and a GaInSb/GaSb quantum well saturable absorber for self-starting passive mode locking. The laser is pumped by a multi mode fiber-coupled laser diode at a wavelength of 793 nm. An average output power of 202 mW is achieved at a center wavelength of 2032 nm. Pulses with duration of 3 ps are generated at a repetition rate of 139.6 MHz. We also report on the first noise evaluation of a modelocked solid-state laser operating in the 2-um wavelength range. We measured a timing jitter of sub-100 fs and a relative intensity noise of only 0.04% (frequency range from 500 Hz to 1 MHz). PMID- 29041241 TI - Sub-picosecond laser damage growth on high reflective coatings for high power applications. AB - Growth of laser damage on High Reflection (HR) thin film coatings is investigated at the wavelength of 1.030um in the sub-picosecond regime. An experimental laser damage setup in a pump / probe configuration is used to study the growth behavior of engineered damage sites as well as laser damage sites. Results demonstrate that engineered sites and laser damage sites grow identically which indicates that the growth phenomenon is intrinsic to materials and stack design. In order to analyze the experimental results, we have developed a numerical model to simulate growth. Using FEM simulations, we demonstrate that growth is governed by the evolution of the electric field distribution in the mirror stack under the successive laser shots, which is supported by time-resolved observations of damage growth events. Eventually the results are compared to laser damage observations made on of full scale PETAL mirrors, which fully support the approach. PMID- 29041242 TI - Frequency-scanning interferometry using a time-varying Kalman filter for dynamic tracking measurements. AB - Frequency scanning interferometry (FSI) with a single external cavity diode laser (ECDL) and time-invariant Kalman filtering is an effective technique for measuring the distance of a dynamic target. However, due to the hysteresis of the piezoelectric ceramic transducer (PZT) actuator in the ECDL, the optical frequency sweeps of the ECDL exhibit different behaviors, depending on whether the frequency is increasing or decreasing. Consequently, the model parameters of Kalman filter appear time varying in each iteration, which produces state estimation errors with time-invariant filtering. To address this, in this paper, a time-varying Kalman filter is proposed to model the instantaneous movement of a target relative to the different optical frequency tuning durations of the ECDL. The combination of the FSI method with the time-varying Kalman filter was theoretically analyzed, and the simulation and experimental results show the proposed method greatly improves the performance of dynamic FSI measurements. PMID- 29041243 TI - Multiplexed coded time domain sampling with metamaterials. AB - The far infrared region of the electromagnetic spectrum often necessitates the use of thermal detectors that, by nature, typically have poor response times and diminished sensitivities, at least compared to adjacent bands. However, many signals of interest contain frequency components far too fast to be reliably measured with such detectors, and hence expensive and inefficient alternatives are brought to bear. Here we propose and experimentally validate a new method leveraging the speed and scalability of dynamic metamaterial modulators to encode high-frequency signal components at a lower frequency, making them reliably measurable with thermal detectors that would otherwise be too slow. An optimal weighing scheme design in the time domain is realized, the result being an imaging system whose time resolution is independent of detector speed and is rather limited only by the speed of the modulator and the reproducibility of the signal of interest. PMID- 29041244 TI - Comprehensive CO detection in flames using femtosecond two-photon laser-induced fluorescence. AB - We demonstrate a femtosecond two-photon laser-induced fluorescence (fs-TPLIF) technique for sensitive CO detection, using a 230 nm pulse of 9 uJ and 45 fs. The advantages of fs-TPLIF in excitation of molecular species were analyzed. Spectra of CO fs-TPLIF were recorded in stable laminar flames spatially resolved across the flame front. A hot band (1, n) together with the conventional band (0, n) of the B->A transitions were observed in the burned zone and attributed to the broadband nature of the fs excitation. The CO fs-TPLIF signal recorded across the focal point of the excitation beam shows a relatively flat intensity distribution despite of the steep laser intensity variation, which is beneficial for CO imaging in contrast to nanosecond and picosecond TPLIF. This phenomenon can be explained by photoionization, which over the short pulse duration dominates the population depletion of the excited B state due to the high peak power, but only contributes in total a negligible X state depletion due to the low pulse energy. Single-shot CO fs-TPLIF images in methane/air flames were recorded by imaging the broadband fluorescence. The results indicate that fs-TPLIF is a promising tool for CO imaging in flames. PMID- 29041245 TI - Frequency-constrained robust principal component analysis: a sparse representation approach to segmentation of dynamic features in optical coherence tomography imaging. AB - Sparse representation theory is an exciting area of research with recent applications in medical imaging and detection, segmentation, and quantitative analysis of biological processes. We present a variant on the robust-principal component analysis (RPCA) algorithm, called frequency constrained RPCA (FC-RPCA), for selectively segmenting dynamic phenomena that exhibit spectra within a user defined range of frequencies. The algorithm lacks subjective parameter tuning and demonstrates robust segmentation in datasets containing multiple motion sources and high amplitude noise. When tested on 17 ex-vivo, time lapse optical coherence tomography (OCT) B-scans of human ciliated epithelium, segmentation accuracies ranged between 91-99% and consistently out-performed traditional RPCA. PMID- 29041246 TI - Quantum dot emission modulation using piezoelectric photonic crystal MEMS resonators. AB - Quantum dots (QDs) integration into photonic devices requires varied approaches to control and modulate their emission. We demonstrate voltage-tunable PC structures with integrated QDs over suspended piezoelectric aluminum nitride thin film resonators that modulate PC enhancement at MHz frequencies. When the piezoelectric device is actuated at its resonant mechanical frequency, the extracted QD emission direction is likewise modulated via the optical resonant frequency of the PC. Modulation uses nanometer-scale mechanical displacements, offering the potential for greater switching speed and improved mechanical robustness that is not subject to the effects of stiction with a scalable fabrication approach. PMID- 29041247 TI - Resonance coupling and polarization conversion in terahertz metasurfaces with twisted split-ring resonator pairs. AB - We investigate edge-coupling of twisted split-ring resonator (SRR) pairs in the terahertz (THz) frequency range. Using a simple coupled-resonator model we show that such a system exhibits resonance splitting and cross-polarization conversion. Numerical simulations and experimental measurements agree well with theoretical calculations, verifying the resonance splitting as a function of the coupling strength given by the SRR separation. We further show that a metal ground plane can be integrated to significantly enhance the resonance coupling, which enables the effective control of resonance splitting and the efficiency and bandwidth of the cross-polarization conversion. Our findings improve the fundamental understanding of metamaterials with a view of accomplishing metamaterial functionalities with enhanced performance, which is of great interest in realizing THz functional devices required in a variety of applications. PMID- 29041248 TI - Low coherence digital holography microscopy based on the Lorenz-Mie scattering model. AB - We demonstrate the use of low spatial and temporal coherence holography microscopy, based on the Lorenz-Mie model, using the standard tungsten-halogen lamp present in an inverted microscope. An optical model is put forward to incorporate the effect of spectral width and different incidence angles of the incident light determined by the aperture at the back focal plane of the condenser lens. The model is validated for 899 nm diameter polystyrene microspheres in glycerol, giving a resolution of 0.4% for the index of refraction and 2.2% for the diameter of the particles. PMID- 29041249 TI - Occlusion handling using angular spectrum convolution in fully analytical mesh based computer generated hologram. AB - Occlusion handling in computer-generated holography is of vast importance as it enhances depth information by presenting correct motion parallax of the 3D scene within the viewing angle. In this paper, we propose a computationally efficient occlusion handling technique based on a fully analytic mesh based computer generated holography. The proposed technique uses angular spectrum convolution that renders exact occlusion while preserving all other aspects of the fully analytic mesh based computer generated holography. The proposed method is computationally efficient as only a single convolution operation is required for each mesh without numerical propagation between the meshes. The proposed method is also exact as it performs the occlusion processing in the tilted mesh plane, being free from artifacts coming from orthographic spatial masking. The proposed method can be applied to the self and the mutual occlusions between the objects in the 3D scene. The computer simulated results show the feasibility of the proposed method. PMID- 29041250 TI - Tunable artificial microwave blackbodies based on metasurfaces. AB - Inspired by the classic hole-cavity blackbody model, we propose an open metasurface blackbody operating at microwave frequencies, whose unit cell is a dielectric resonator lying on an opaque metal plate. The resonator has a high temperature coefficient of dielectric constant, thus the blackbody can be thermally tunable. Furthermore, when the resonator is combined with ferrite, a magnetically tunable blackbody is also obtained. Absorption spectra of these two tunable blackbody unit cells are measured, and they agree very well with the simulated results. The proposed blackbodies offer a new opportunity for practical tunable microwave absorbers in applications. PMID- 29041251 TI - Continuous-wave and passively Q-switched cryogenic Yb:KLu(WO4)2 laser. AB - We study cryogenic laser operation of an Yb-doped KLu(WO4)2 crystal pumped with a volume Bragg grating (VBG) stabilized diode laser at 981 nm. In the continuous wave laser regime, a maximum output power of 4.31 W is achieved at 80 K with a slope efficiency of 44.0% with respect to the incident pump power. Using a 85% initial transmission Cr:YAG crystal for passive Q-switching, an average output power of 2.11 W is achieved at 100 K for a repetition rate of 19 kHz. The pulse energy, pulse duration and peak power amount to 111 uJ, 231 ns and 0.48 kW, respectively. PMID- 29041252 TI - Large-format platinum silicide microwave kinetic inductance detectors for optical to near-IR astronomy. AB - We have fabricated and characterized 10,000 and 20,440 pixel Microwave Kinetic Inductance Detector (MKID) arrays for the Dark-speckle Near-IR Energy-resolved Superconducting Spectrophotometer (DARKNESS) and the MKID Exoplanet Camera (MEC). These instruments are designed to sit behind adaptive optics systems with the goal of directly imaging exoplanets in a 800-1400 nm band. Previous large optical and near-IR MKID arrays were fabricated using substoichiometric titanium nitride (TiN) on a silicon substrate. These arrays, however, suffered from severe non uniformities in the TiN critical temperature, causing resonances to shift away from their designed values and lowering usable detector yield. We have begun fabricating DARKNESS and MEC arrays using platinum silicide (PtSi) on sapphire instead of TiN. Not only do these arrays have much higher uniformity than the TiN arrays, resulting in higher pixel yields, they have demonstrated better spectral resolution than TiN MKIDs of similar design. PtSi MKIDs also do not display the hot pixel effects seen when illuminating TiN on silicon MKIDs with photons with wavelengths shorter than 1 um. PMID- 29041253 TI - Temperature-calibrated high-precision refractometer using a tilted fiber Bragg grating. AB - We present a refractometer with main- and vernier-scale to measure the refractive index (RI) of liquids with high precision by using the fine spectrum structure of a tilted fiber Bragg grating (TFBG). The absolute RI values are determined by the accurate wavelength of cut-off mode resonances. The main- and vernier-scale are calibrated by measuring large groups of fine spectra at different cut-off mode resonances in a small RI range, and the use of vernier-scale certainly reduces the RI measurement uncertainty resulted from the discrete cladding mode resonances. The performance of the TFBG-based vernier refractometer is experimentally verified by exploring the temperature dependence of RI of anhydrous ethanol in a near infrared region, showing an enhanced accuracy to the order of 10-4, high repeatability and temperature self-calibration capability. PMID- 29041254 TI - Mediated coupling of surface plasmon polaritons by a moving electron beam. AB - The mediated coupling of surface plasmon polaritons (SPPs) by a parallel moving electron beam is demonstrated in this paper. The theoretical analysis shows that the electron beam excited spoof surface plasmon polaritons (SSPs) on the grating placed above the metal films play the role as the excitation source in the mediated coupling. The numerical calculations and particle-in-cell simulations demonstrate the significant advantages of the SSPs mediately coupled SPPs in contrast with that coupled by the parallel moving electron beam directly. The photo density of the mediately coupled SPPs reaches up to 106 per cm2 for the electron beam with the charge density 100 nC/cm, which is two orders of magnitude larger than that of the directly coupled SPPs. The tuning band of the mediately coupled SPPs reaches up to 9% for the beam energy ranging from 10 keV to 30 keV, while it almost cannot be tuned for the direct coupling. The lifetime of the mediately coupled SPPs, which reaches up to hundreds of femtoseconds, is also much longer. Accordingly, the mediated coupling may bring great significances for the applications of SPPs. PMID- 29041255 TI - Effect of the gold crystallinity on the enhanced luminescence signal of scanning probe tips in apertureless near-field optical microscopy. AB - The effect of gold tip crystallinity on their spectral amplification characteristics, monitored through the luminescence enhanced by surface plasmon resonance (SPR), is investigated experimentally. As the tip radius increases, the grains composing polycrystalline tips become larger, resulting in a blueshift of the emission while a redshift of the SPR was predicted for monocrystalline gold. This reveals that the effect of the grain size, a parameter that has not been considered so far, is dominant over that of the tip radius. This study is significant to apertureless scanning near-field optical microscopy, where the gold tip emission defines the spectral antenna range. PMID- 29041256 TI - Polaritonic figure of merit of plane structures. AB - Based on the ability of plane structures to simultaneously optimize the propagation, confinement, and energy of surface plasmon-polaritons or surface phonon-polaritons, we develop the polaritonic figure of merit Z = betaRLambda2/delta, where betaR, Lambda and delta are the longitudinal wave vector, propagation length, and penetration depth, respectively. Explicit and analytical expressions of Z are derived for a single interface and a suspended thin film, as functions of the material permittivities and the film thickness. Higher Z are obtained for thinner films and smaller energy losses. The application of the obtained results for a SiC-air interface and a SiC thin film suspended in air shows that both structures are able to maximize the presence of polaritons at a frequency near to, but different than that at which the real part of the SiC permittivity exhibits a dip. Furthermore, using the temperature change of this dip, we show that the propagation length, confinement and energy of polaritons increases with its deepness, which provides an effective way to enhance the overall Z of polaritonic structures. PMID- 29041257 TI - Giant optical nonlinearity in DNA lyotropic liquid crystals. AB - We report the experimental evidence of nonlinear optical response in DNA lyotropic nematic liquid crystals. Pump-probe experiments indicate that the non linearity is remarkably large. Quantitative assessment of the non-linear optical coefficient by transient optical grating demonstrates that the response is of the same order of the well-known Giant Optical Nonlinearity (GON) of thermotropic nematics. These results represent a further incentive to the current investigation of potential applications of DNA in biophotonics. PMID- 29041258 TI - Manipulating refractive index, homogeneity and spectroscopy of Yb3+-doped silica core glass towards high-power large mode area photonic crystal fiber lasers. AB - Output power scaling of single mode large mode area (LMA) photonic crystal fiber (PCF) amplifiers urgently requires the low refractive index of Yb3+-doped silica glasses whilst maintaining high optical homogeneity. In this paper, we report on a promising alternative Yb3+/Al3+/F-/P5+-co-doped silica core-glass (YAFP), which is prepared by modified sol-gel method developed by our group and highly suitable for fabricating high power LMA PCF amplifiers. By controlling the doping combinations of Al3+/F-/P5+ in Yb3+-doped silica glass,it not only ensures low refractive index (RI) but also maintains the excellent optical homogeneity and spectroscopic properties of Yb3+. The spectroscopic properties of Yb3+ ions have not deteriorated by the co-doping of F- and P5+ in YAFP glass compared with that of Yb3+/Al3+ co-doped silica glass. A large-size (?5 mm * 90 mm) YAFP silica-core glass rod with low average RI difference of 2.6 * 10-4 (with respect to pure silica glass), and low radial and axial RI fluctuations of ~2 * 10-4, was prepared. A LMA PCF with 50 um core diameter was obtained by stack-capillary-draw techniques using YAFP core glass. Its core NA is 0.027. An average amplified power of 97 W peaking at 1030 nm and light-light efficiency of 54% are achieved from a 6.5 m long PCF in the pulse amplification laser experiment. Meanwhile, quasi-single-mode transmission is obtained with laser beam quality factor M2 of 1.4. PMID- 29041259 TI - Non-reciprocal energy transport in linear and ring dynamic quantum networks and width-patterned optical waveguide arrays. AB - Non-reciprocal and uni-directional transport could efficiently transmit signals in integrated quantum and optical networks. It is shown that the time-dependent modulation of the position of quantum nodes would efficiently and non reciprocally guide an initially injected quantum energy. Moreover, the initial energy could be trapped within a ring configuration of such dynamically controlled quantum nodes. It is also shown that parallel waveguide arrays with specific widths pattern could uni-directly transfer a Gaussian beam across the arrays. By arranging the parallel waveguides on a cylindrical shell with a new widths pattern, the chiral transport of an incident Gaussian beam is also achieved. PMID- 29041260 TI - Compact acousto-optic imaging spectro-polarimeter for mineralogical investigations in the near infrared. AB - Spectral imaging in the near infrared is a promising method for mineralogy analysis, in particular well-suited for airless celestial objects or those with faint atmospheres. Additional information about structure and composition of minerals can be obtained using spectral polarimetry with high spatial resolution. We report design and performance of laboratory prototype for a compact near infrared acousto-optic imaging spectro-polarimeter, which may be implemented for remote or close-up analysis of planetary surfaces. The prototype features telecentric optics, apochromatic design over the bandwidth of 0.8-1.75 um, and simultaneous imaging of two orthogonal linear polarizations of the same scene with a single FPA detector. When validating the scheme, reflectance spectra of several minerals were measured with the spectral resolution of 100 cm-1 (10 nm passband at 1 um). When imaging samples, the spatial resolution of 0.6 mm at the target distance of one meter was reached. It corresponds to 100 by 100 diffraction-limited elements resolved at the focal plane array (FPA) for each of the two light polarizations. A similar prototype is also being designed for the spectral range from 1.7 to 3.5 um. This type of the spectro-polarimeter is considered as a potential reconnaissance and analysis tool for future planetary or moon landers and rovers. PMID- 29041261 TI - Propagation analysis of phase-induced amplitude apodization optics based on boundary wave diffraction theory. AB - Phase-induced amplitude apodization (PIAA) is a promising technique in high contrast coronagraphs due to the characteristics of high efficiency and small inner working angle. In this letter, we present a new method for calculating the diffraction effects in PIAA coronagraphs based on boundary wave diffraction theory. We propose a numerical propagator in an azimuth boundary integral form, and then delve into its analytical propagator using stationary phase approximation. This propagator has straightforward physical meaning and obvious advantage on calculating efficiency, compared with former methods based on numerical integral or angular spectrum propagation method. Using this propagator, we can make a more direct explanation to the significant impact of pre-apodizer. This propagator can also be used to calculate the aberration propagation properties of PIAA optics. The calculating is also simplified since the decomposing procedure is not needed regardless of the form of the aberration. PMID- 29041262 TI - Nonlinear third harmonic generation at crystalline sapphires. AB - Third harmonic generation (THG) is a nonlinear optical phenomenon which can be applied in diverse research areas including interfacial studies, sub-wavelength light manipulation, and high sensitivity bio-molecular detection. Most precedent studies on THG have focused on dielectric and metallic materials, including silicon, gold, and germanium, due to their high nonlinear susceptibility. Sapphire, a widely-used optical substrate, has not been studied in depth for its third harmonic characteristics, despite its excellent optical transmission in the UV-visible range, high thermal conductance, and superior physical and chemical stability. In this research, we comprehensively studied THG at thin air dielectric interfaces of sapphire wafers by controlling the wafer cutting planes, focusing depth, incidence angle, laser intensity, and input polarization of the input laser beam. These findings can lead to broader use of third harmonics for high-precision sapphire characterization, such as surface quality inspection, crystallinity determination, interfacial studies, delamination check, and real time monitoring of crack propagation. PMID- 29041263 TI - Optimization of a waveguide-mode sensing chip for an ultraviolet near-field illumination biosensor. AB - A waveguide-mode sensor with a planar sensing chip, consisting of two waveguiding layers and a glass substrate, is a promising candidate for a near-field illumination biosensor. Aiming at using fluorescent labeling induced by ultraviolet light, we optimize the structure of a waveguide-mode sensing chip, based on the mechanism for enhancing ultraviolet near-field light revealed by numerical calculations. Candidates of optimal materials are also presented. The chip optimized as above should be able to enhance the intensity of ultraviolet near-field light 25 times as high as an Al surface plasmon resonance sensing chip. PMID- 29041264 TI - Stable CW laser based on low thermal expansion ceramic cavity with 4.9 mHz/s frequency drift. AB - We describe a CW laser stabilized to a low thermal expansion ceramic cavity which has a lower frequency drift rate than cavities based on ultralow-expansion glass (ULE), which are widely used as optical references. Two identical optical cavities with spacers of different material, ceramic and ULE, were assembled and the optical frequencies locked to each of these cavities were compared. The optical frequency drifts of both CW lasers were measured to within a precision of 10-11 in one second over the course of one year. The ceramic cavity had a long term frequency drift rate of 4.9 mHz/s and the ULE cavity had one of 23 mHz/s. PMID- 29041265 TI - Common-signal-induced synchronization in photonic integrated circuits and its application to secure key distribution. AB - We experimentally achieve common-signal-induced synchronization in two photonic integrated circuits with short external cavities driven by a constant-amplitude random-phase light. The degree of synchronization can be controlled by changing the optical feedback phase of the two photonic integrated circuits. The change in the optical feedback phase leads to a significant redistribution of the spectral energy of optical and RF spectra, which is a unique characteristic of PICs with the short external cavity. The matching of the RF and optical spectra is necessary to achieve synchronization between the two PICs, and stable synchronization can be obtained over an hour in the presence of optical feedback. We succeed in generating information-theoretic secure keys and achieving the final key generation rate of 184 kb/s using the PICs. PMID- 29041266 TI - Toroidal resonance based optical modulator employing hybrid graphene-dielectric metasurface. AB - In this paper, we demonstrate the combination of a dielectric metasurface with a graphene layer to realize a high performance toroidal resonance based optical modulator. The dielectric metasurface consists of two mirrored asymmetric silicon split-ring resonators (ASSRRs) that can support strong toroidal dipolar resonance with narrow line width (~0.77 nm) and high quality (Q)-factor (~1702) and contrast ratio (~100%). Numerical simulation results show that the transmission amplitude of the toroidal dipolar resonance can be efficiently modulated by varying the Fermi energy EF when the graphene layer is integrated with the dielectric metasurface, and a max transmission coefficient difference up to 78% is achieved indicating that the proposed hybrid graphene/dielectric metasurface shows good performance as an optical modulator. The effects of the asymmetry degree of the ASSRRs on the toroidal dipolar resonance are studied and the efficiency of the transmission amplitude modulation of graphene is also investigated. Our results may also provide potential applications in optical filter and bio-chemical sensing. PMID- 29041267 TI - Propagation dynamics of partially coherent crescent-like optical beams in free space and turbulent atmosphere. AB - We introduce theoretically and realize experimentally a class of random, wide sense stationary optical beams with uniform correlations which, on propagation in free space, produce a crescent-like intensity distribution with the maximum at an off-axis position. The crescent's position of maximum intensity accelerates transversally at intermediate distances, and then exhibits a constant lateral shift further from the axis in the far zone of the source. We also show that on propagation in the isotropic turbulent atmosphere, the crescent beam shifts away from the axis as well, but slower than in free space, with rate depending on the strength of turbulence. These results are of importance for optical systems operating through long-range turbulent channels in which a beam must have a range dependent tilt, e.g. on travelling around an obstacle. PMID- 29041268 TI - Indistinguishable heralded single photon generation via relative temporal multiplexing of two sources. AB - Generating N single photons simultaneously is a formidable challenge due to the lack of deterministic single photon sources. Recent work [New J. Phys. 19, 063013 (2017] has proposed a relative multiplexing scheme that can enhance the N single photons probability with a minimum of active switching resources. We experimentally demonstrate relative temporal multiplexing on two photon sources with a 90% additional enhancement over the standard temporal multiplexing scheme demonstrated previously. 88 +/- 11% visibility of Hong-Ou-Mandel quantum interference verifies the indistinguishability of the heralded single photons after the synchronization. This proof-of-principle demonstration points out the potential significance of the relative multiplexing scheme for large-scale photonic quantum information processing. PMID- 29041269 TI - Spectral anomalies and Gouy rotation around the singularity of ultrashort vortex pulses. AB - Spectral anomalies of femtosecond pulses with orbital angular momentum were studied in the vicinity of singularities. Bessel-Gauss (BG) beams were generated with mode-locked Ti:sapphire oscillators and dispersion-compensated diffractive axicons acting as spiral phase plates (SPPs). High-resolution two-dimensional spectral mapping was performed with a scanning fiber probe. Progressive rotation of the most pronounced features, known as "spectral eyes", in the maps of spectral moments was found at increasing propagation distance. The phenomenon is explained by a wavelength-dependent Gouy phase shift of interfering spectral components in the twisted wavefront. Spatial "spectral switching" was detected for few-cycle pulses. Possible improvements of selectivity are proposed. PMID- 29041270 TI - Quantitative dual-channel FRET microscopy. AB - Acceptor-sensitized quantitative Forster resonance energy transfer (FRET) measurement (E-FRET) is mainly impeded by donor emission crosstalk and acceptor direct excitation crosstalk. In this paper, we develop a novel E-FRET approach (Lux-E-FRET) based on linear unmixing (Lux) of the fluorescence intensity ratio between two detection channels with each excitation of two different wavelengths. The two detection channels need not to selectively collect the emission of donor or acceptor, and the excitation wavelengths need not to selectively excite donor or acceptor. For a tandem FRET sensor, Lux-E-FRET only needs single excitation wavelength. We performed Lux-E-FRET measurements on our dual-channel wide-field fluorescence microscope for FRET constructs in living cells, and obtained consistent FRET efficiencies with those measured by other methods. Collectively, Lux-E-FRET completely overcomes all spectral crosstalks and thus is applicable to the donor-acceptor pair with larger spectral overlapping. PMID- 29041271 TI - Three dimensional range geometry and texture data compression with space-filling curves. AB - This paper presents a novel method to effectively store three-dimensional (3D) data and 2D texture data into a regular 24-bit image. The proposed method uses the Hilbert space-filling curve to map the normalized unwrapped phase map to two 8-bit color channels, and saves the third color channel for 2D texture storage. By further leveraging existing 2D image and video compression techniques, the proposed method can achieve high compression ratios while effectively preserving data quality. Since the encoding and decoding processes can be applied to most of the current 2D media platforms, this proposed compression method can make 3D data storage and transmission available for many electrical devices without requiring special hardware changes. Experiments demonstrate that if a lossless 2D image/video format is used, both original 3D geometry and 2D color texture can be accurately recovered; if lossy image/video compression is used, only black-and white or grayscale texture can be properly recovered, but much higher compression ratios (e.g., 1543:1 against the ASCII OBJ format) are achieved with slight loss of 3D geometry quality. PMID- 29041272 TI - Transition between bulk and surface refractive index sensitivity of micro-cavity in-line Mach-Zehnder interferometer induced by thin film deposition. AB - In this work we discuss the refractive index (RI) sensitivity of a micro-cavity in-line Mach-Zehnder interferometer in the form of a cylindrical hole (40-50 MUm in diameter) fabricated in a standard single-mode optical fiber using a femtosecond laser. The surface of the micro-cavity was coated with up to 400 nm aluminum oxide thin film using the atomic layer deposition method. Next, the film was progressively chemically etched and the influence on changes in the RI of liquid in the micro-cavity was determined at different stages of the experiment, i.e., at different thicknesses of the film. An effect of transition between sensitivity to the film thickness (surface) and the RI of liquid in the cavity (bulk) is demonstrated for the first time. We have found that depending on the interferometer working conditions determined by thin film properties, the device can be used for investigation of phenomena taking place at the surface, such as in case of specific label-free biosensing applications, or for small-volume RI analysis as required in analytical chemistry. PMID- 29041273 TI - Aperiodic nature of nanograting inscribed by femtosecond pulses. AB - A systematic study was performed, both experimentally and theoretically, to investigate the structural periodicity of nanogratings inscribed by focused femtosecond pulses on the surface of dielectrics. The results surprisingly show that although nanogratings generally appear periodic they are in fact intrinsically aperiodic. In the perpendicular writing scheme, the groove spacing gradually decreases from the middle part towards both sides. In the parallel writing scheme, the groove spacing varies quasiperiodically and the variation differs with respect to pulse-to-pulse spacing. Constant groove spacing was obtained only for a particular pulse-to-pulse spacing. These Gaussian-apodized and quasiperiodic variations are found to be intrinsic. They arise from the fact that the grooves are created, depending on the writing scheme, either by a series of local-lobes with different amplitudes and material feedbacks or by a repeated generated leading side-lobe with similar but not identical amplitudes and material feedbacks. The production of each single grooves result from a nonlinear and localized process from which arises its aperiodic nature. All these intrinsically Gaussian-apodized and quasiperiodic variations can be well interpreted based on the incubation-based nanoplasmonic model. PMID- 29041274 TI - Generalized shift-rotation absolute measurement method for high-numerical aperture spherical surfaces with global optimized wavefront reconstruction algorithm. AB - In this paper, a generalized shift-rotation absolute measurement method is proposed to measure the absolute surface shape of high-numerical-aperture spherical surfaces. Based on the wavefront difference method, the high order misalignment aberrations can be removed from the measurements. Our generalized shift-rotation absolute measurement process only needs one rotational measurement position and one translational measurement position. A wavefront reconstruction method based on the self-adaptive differential evolution algorithm is proposed to calculate the Zernike polynomials coefficient ai of the absolute surface shape Wtest(x,y), the rotation angle Deltatheta, the translation deltax along the x axis, and the translation deltay along the y axis. The translation error and rotation error in other absolute measurement methods are avoided using our generalized shift-rotation absolute measurement method. Experimental absolute results of the test surface and reference surface are given and the difference of reference surface shapes between two testings in experiments is 0.12 nm root mean square. PMID- 29041275 TI - Laser-induced erasable patterns in a N* liquid crystal on an iron doped lithium niobate surface. AB - A chiral nematic (N*) liquid crystal (LC) was hybridized with a z-cut iron doped lithium niobate (Fe:LN) substrate and exposed with a focused continuous wave diode laser beam. The N* LC layer was confined with a cover glass to provide a homogeneous LC layer thickness. Two distinct kinds of test cells were investigated, one with an uncoated glass covering slip and one with an indium tin oxide (ITO) coated cover glass. Photo generated electric fields (generated in the Fe:LN) resulted in a localized defect formation and textural transitions in the N* LC. Due to field confinement, the field induced responses were more localized in samples with ITO coated cover glasses. By scanning the laser beam on programmed trajectories, formation of persistent patterns could be achieved in the N* LC layer. Polarized optical microscopy of the exposed samples revealed that these patterns consisted of adjacent circular Frank-Pryce defects. Exposure with a slightly defocused laser beam could be applied selectively to erase these patterns. Thus, a promising method is reported to generate reconfigurable patterns, photonic motives, and touch sensitive devices in a hybridized N* LC with micron accuracy. PMID- 29041276 TI - High-resolution chalcogenide fiber bundles for longwave infrared imaging. AB - A flexible chalcogenide fiber bundle (FB) with a resolution as high as ~31 lp/mm has been fabricated for delivering thermal images of objects at room temperature. The FB is composed of ~200,000 single fibers with a Ge-As-Te-Se glass core 15 MUm in diameter and a polyetherimide (PEI) cladding 16.8 MUm in diameter. These Ge-As Te-Se/PEI fibers show good transparency in the 3-12 MUm spectral region. The fabricated FB presents a filling factor of ~72% and a crosstalk of ~1%. High quality thermal images of a human hand were obtained through the FB, demonstrating good potential of the FB for longwave infrared imaging in the areas such as medicine, industry and defense. PMID- 29041277 TI - 5.9 GHz graphene based q-switched modelocked mid-infrared monolithic waveguide laser. AB - A high repetition rate Q-switched modelocked ~2.1 um monolithic waveguide laser is reported. Ultrafast laser inscription is used to fabricate 3D depressed cladding channel waveguides in holmium doped yttrium aluminium garnet. This results in a transversely single mode waveguide laser. With the use of a graphene based saturable output coupler, Q-switched modelocking was achieved with a pulse repetition frequency of 5.9 GHz and up to 170 mW of average output power. This first demonstration of multi-GHz repetition rate operation from a Ho3+:YAG laser provides a compact and convenient source for a number of applications. PMID- 29041278 TI - Rapid optimization method of the strong stray light elimination for extremely weak light signal detection. AB - The strong stray light has huge interference on the detection of weak and small optical signals, and is difficult to suppress. In this paper, a miniaturized baffle with angled vanes was proposed and a rapid optimization model of strong light elimination was built, which has better suppression of the stray lights than the conventional vanes and can optimize the positions of the vanes efficiently and accurately. Furthermore, the light energy distribution model was built based on the light projection at a specific angle, and the light propagation models of the vanes and sidewalls were built based on the Lambert scattering, both of which act as the bias of a calculation method of stray light. Moreover, the Monte-Carlo method was employed to realize the Point Source Transmittance (PST) simulation, and the simulation result indicated that it was consistent with the calculation result based on our models, and the PST could be improved by 2-3 times at the small incident angles for the baffle designed by the new method. Meanwhile, the simulation result was verified by laboratory tests, and the new model with derived analytical expressions which can reduce the simulation time significantly. PMID- 29041279 TI - Bit-based support vector machine nonlinear detector for millimeter-wave radio over-fiber mobile fronthaul systems. AB - An effective bit-based support vector machine (SVM) is proposed as a non parameter nonlinear mitigation approach in the millimeter-wave radio-over-fiber (RoF) mobile fronthaul (MFH) system for various modulation formats. First, we analyze the impairments originated from nonlinearities in the millimeter-wave RoF system. Then we introduce the operation principle of the bit-based SVM detector. As a classifier, the SVM can create nonlinear decision boundaries by kernel function to mitigate the distortions caused by both linear and nonlinear noise. In our design, SVM can learn and capture the link characteristics from only a few training data without requiring the prior estimation of the system link. The bit based SVM only needs log2M SVMs to detect the signal of M-order modulation format. Experimental results have been obtained to verify the feasibility of the proposed method. The sensitivities are improved by 1.2-dB for 16-QAM, 1.3-dB for 64-QAM, 1.8-dB for 16-APSK and 1.3-dB for 32-APSK at BER = 1E-3 with SVM detector, respectively. The proposed bit-based SVM gains a large improvement in the nonlinear system tolerance and outperforms the system employing k-means algorithm. PMID- 29041280 TI - On the substrate contribution to the back action trapping of plasmonic nanoparticles on resonant near-field traps in plasmonic films. AB - Nanoparticles trapped on resonant near-field apertures/engravings carved in plasmonic films experience optical forces due to the steep intensity gradient field of the aperture/engraving as well as the image like interaction with the substrate. For non-resonant nanoparticles the contribution of the substrate interaction to the trapping force in the vicinity of the trap (aperture/engraving) mode is negligible. But, in the case of plasmonic nanoparticles, the contribution of the substrate interaction to the low frequency stable trapping mode of the coupled particle-trap system increases as their resonance is tuned to the trap resonance. The strength of the substrate interaction depends on the height of the nanoparticle above the substrate. As a result, a difference in back action mechanism arises for nanoparticle displacements perpendicular to the substrate and along it. For nanoparticle displacements perpendicular to the substrate, the self induced back action component of the trap force arises due to changing interaction with the substrate as well as the trap. On the other hand, for displacements along the substrate, it arises solely due to the changing interaction with the trap. This additional contribution of the substrate leads to more pronounced back action. Numerical simulation results are presented to illustrate these effects using a bowtie engraving as the near-field trap and a nanorod as the trapped plasmonic nanoparticle. The substrate's role may be important in manipulation of plasmonic nanoparticles between successive traps of on-chip optical conveyor belts, because they have to traverse over regions of bare substrate while being handed off between these traps. PMID- 29041281 TI - Inhibited coupling guiding hollow fibers for label-free DNA detection. AB - The potentialities in using hollow core tube lattice fibers based on inhibited coupling wave-guiding for label-free DNA detection are numerically investigated and discussed here. The proposed sensing approach does not require any additional transducer component such as Bragg gratings, amplifying techniques such as nanoparticles nor coherent sources. It simply consists of the measurement of the transmittance of a piece of fiber some ten centimeters long. In case of matching DNA sequence, an additional bio-layer is laid down the dielectric-air interface causing a red shift of the transmission spectrum of the fiber. Results show a spectral sensitivity on the bio-layer with shift as high as 42 nm for every 10 nm of bio-layer and robustness against imperfect fiber coupling. The proposed approach can be easily applied to sensing of other complex molecular structures where the presence/absence of analyte can generate or not an additional layer. PMID- 29041282 TI - Dynamically tunable plasmon induced absorption in graphene-assisted metallodielectric grating. AB - The dynamically tunable plasmon induced absorption (PIA) effect is demonstrated in a graphene-assisted metallodielectric grating structure. Two methods are employed to achieve the tunable PIA effect in the mid-infrared region: one is based on controlling the chemical potential of graphene by adjusting the gate voltage, the other is related to varying the refractive index of interlayer. Our calculated results reveal that high tunability in amplitude and bandwidth of the PIA effect can be achieved by using the above-mentioned methods. Compared with previous results, our scheme is much easier to fabricate and has significant applications in modulators, absorbers and sensors. PMID- 29041283 TI - Self-generation of optical frequency comb in single section quantum dot Fabry Perot lasers: a theoretical study. AB - Optical Frequency Comb (OFC) generated by semiconductor lasers are currently widely used in the extremely timely field of high capacity optical interconnects and high precision spectroscopy. In the last decade, several experimental evidences of spontaneous OFC generation have been reported in single section Quantum Dot (QD) lasers. Here we provide a physical understanding of these self organization phenomena by simulating the multi-mode dynamics of a single section Fabry-Perot (FP) QD laser using a Time-Domain Traveling-Wave (TDTW) model that properly accounts for coherent radiation-matter interaction in the semiconductor active medium and includes the carrier grating generated by the optical standing wave pattern in the laser cavity. We show that the latter is the fundamental physical effect at the origin of the multi-mode spectrum appearing just above threshold. A self-mode-locking regime associated with the emission of OFC is achieved for higher bias currents and ascribed to nonlinear phase sensitive effects as Four Wave Mixing (FWM). Our results explain in detail the behaviour observed experimentally by different research groups and in different QD and Quantum Dash (QDash) devices. PMID- 29041284 TI - Single-shot dual-wavelength off-axis quasi-common-path digital holography using polarization-multiplexing. AB - We present a dual-wavelength off-axis quasi-common-path digital holography for quantitative phase imaging using polarization-multiplexing in a single shot. Employing an off-axis nearly common-path configuration, our approach separates the two-wavelength information using a polarizing beam splitter, while modulates the orthogonal fringe directions for each wavelength using two retro-reflector mirrors, and thus generates a single multiplexed off-axis interferogram on a monochrome CCD camera. The information of a specimen, including phase and height, is reconstructed through a division algorithm for dual wavelengths with the help of a specimen-free multiplexed interferogram. The experimental results obtained on a square step target and a circular step target illustrate the validity and stability of our setup. PMID- 29041285 TI - General noise suppression scheme with reference detection in heterodyne nonlinear spectroscopy. AB - We devised a novel two-step reference scheme that can greatly suppress the additive and convolutional noises in heterodyne nonlinear spectroscopy. To optimally remove additive noise, we fully utilized the spectral correlation in multi-channel reference data through a linear combination and regression algorithm. Using our pump-probe 2D IR spectrometer, we demonstrated that our scheme can improve the signal-to-noise ratio by 10-30 times and reach the noise floor of the signal detector. The new algorithm is guaranteed to reduce noise, enables the use of unmatched reference detectors, and does not introduce baseline shift or signal distortion. This scheme is applicable to many heterodyne spectroscopic techniques. PMID- 29041286 TI - Combination of additive and subtractive laser 3D microprocessing in hybrid glass/polymer microsystems for chemical sensing applications. AB - We present a novel hybrid glass-polymer micromechanical sensor by combining two femtosecond laser direct writing processes: laser illumination followed by chemical etching of glass and two-photon polymerization. This incorporation of techniques demonstrates the capability of combining mechanical deformable devices made of silica with an integrated polymer structure for passive chemical sensing application. We demonstrate that such a sensor could be utilized for investigating the elastic properties of polymeric microstructures fabricated via the two-photon polymerization technique. Moreover, we show that polymeric microstructure stiffness increases when immersed in organic liquids. PMID- 29041287 TI - High peak power ultrafast Yb:CaF2 oscillator pumped by a single-mode fiber coupled laser diode. AB - We demonstrate a high peak power mode-locked Yb:CaF2 oscillator pumped by a single-mode laser diode. The laser operated in hybrid Kerr-lens and SESAM mode locked regime. Its performance was optimized by varying the output coupler ratio. Pulses as short as 65 fs were generated with 0.4% transmission. Employing 5% output coupler enabled generation of 77 fs pulses with 46 kW of peak power (262 mW of average output power). We believe that such high peak powers can open a way to practical applications of single-mode diode-pumped ultrafast ytterbium lasers. PMID- 29041288 TI - Reconstructing the surface of transparent objects by polarized light measurements. AB - The paper presents a method aimed at accurately reconstructing transparent objects using the area source. The method called polarized light measurements (PLM) combines two reconstruction techniques: polarization analyses and light path triangulation. The originality of this study relies on the PLM method that enables to extract the radiometric cues and geometric cues simultaneously during the surface reconstruction. To validate performance, a series of the comparison experiments are developed on different objects for the diverse thickness, material and curvature radius of unit under test. The subsequent error analyses are applied to evaluate the method, and the error distribution can be well observed in the results. The PLM performs an efficient process and a higher accuracy compared with traditional reconstruction on transparent objects made by the polarization analyses and triangulation method used alone. PMID- 29041289 TI - Smith-Purcell radiation from periodic beams. AB - Smith-Purcell effect is well known as a source of monochromatic electromagnetic radiation. In this paper we present the generalized theory of Smith-Purcell radiation from periodic beams. The form-factors describing both coherent and incoherent regimes of radiation are calculated. The radiation characteristics are investigated in two practically important frequency ranges, THz and X-ray, for two modulation profiles, most frequently used in practice - a train of microbunches and a Gaussian-shaped one, characterized by sinusoidal modulation with an arbitrary modulation depth. On the base of the theory developed we show that a modulated electron beam consisting of a set of bunches makes it possible to improve significantly the spectral line monochromaticity of the light emitted, reaching values better than 1% for short gratings. We demonstrate as well that Smith-Purcell radiation can be used for non-destructive diagnostics of the depth of modulation for partially modulated beams. These findings not only open up a new way to manipulate the light emission using Smith-Purcell effect but also promise a profound impact for other radiation sources based on charged particle beams, such as undulator radiation in FELs, next-generation X-ray radiation source based on inverse Compton scattering, in a wide range from THz to X-rays. PMID- 29041290 TI - Cross-sectional particle measurement in the resonance domain on the substrate through scatterometry. AB - We developed a versatile method for three-dimensional shape measurement where a specific particle can be selected on the substrate and its cross-sectional shape and size can be measured. A non-contact fast measurement is possible for the particle in the resonance domain. We applied rigorous coupled-wave analysis to the particle and calculated the diffraction patterns, comparing the patterns with the experimental results to obtain the size and shape. The shape and position of the focusing spot on the scattering particle was controlled precisely. With this method, the category of the analyzable object is extended to more shapes, such as rectangles and triangles, in addition to a conventional ellipsoid. PMID- 29041291 TI - Optical thermal sensor based on cholesteric film refilled with mixture of toluene and ethanol. AB - We demonstrate an optical thermal sensor based on cholesteric film refilled with mixture of toluene and ethanol. The thermal response mechanism is mainly based on the thermal expansion effect induce by toluene, where the ethanol is used for refractive index adjustment to determine the initial refection band position of cholesteric film. The ethanol-toluene mixture was used to adjust the color tunability with the temperature in relation with the habits of people (blue as cold, green as safe and red as hot). A broad temperature range of 86 degrees C and highly sensitivity of 1.79 nm/ degrees C are achieved in proposed thermal sensor, where the reflective color red-shifts from blue to red when environmental temperature increases from -6 degrees C to 80 degrees C. This battery-free thermal sensor possesses features including simple fabrication, low-cost, and broad temperature sensing range, showing potential application in scientific research and industry. PMID- 29041292 TI - Silicon crystallinity control during laser direct microstructuring with bursts of picosecond pulses. AB - Laser ablation and modification using bursts of picosecond pulses and a tightly focused laser beam are used to manufacture structures in the bulk silicon. We demonstrate precise control of the surface crystallinity as well as the structure depth and topography of the processed areas, achieving homogeneous surface properties. The control is achieved with a combination of a well-defined pulse energy, systematic pulse positioning on the material, and the number of pulses in a burst. A custom designed fiber laser source is used to generate bursts of 1, 5, 10, and 20 pulses at a pulse repetition rate of 40 MHz and burst repetition rate of 83.3 kHz allowing for a fast and stable processing of silicon. We show a controlled transition through different laser-matter interaction regimes, from no observable changes of the silicon at low pulse energies, through amorphization below the ablation threshold energy, to the ablation with either complete, partial or nonexistent amorphization. Single micrometer-sized areas of desired shape and crystallinity were defined on the silicon surface with submicron precision, offering a promising tool for applications in the field of optics. PMID- 29041293 TI - Improved self-referenced biosensing with emphasis on multiple-resonance nanorod sensors. AB - We present a novel approach to improve self-referenced sensing based on multiple resonance nanorod structures. The method employs the maximum likelihood estimation (MLE) alongside a linear response model (LM), relating the sensor response (shifts in resonance wavelengths) to the changes due to surface binding and bulk refractive index. We also provide a solution to avoid repetitive simulations, that have been previously needed to determine the adlayer thickness sensitivity when measuring biological samples of different refractive indices. The finite element method (FEM) was used to model the nanorod structure, and the nanoimprint lithography was employed to fabricate them. The standard deviation of the results based on the MLE method is lower than that associated with the LM results. The method can be applied to an extended number of resonances to achieve a higher accuracy and precision. PMID- 29041294 TI - Room temperature strong coupling in a semiconductor microcavity with embedded AlGaAs quantum wells designed for polariton lasing. AB - We report a systematic study of the temperature and excitation density behavior of an AlAs/AlGaAs, vertically emitting microcavity with embedded ternary Al0.20Ga0.80As/AlAs quantum wells in the strong coupling regime. Temperature dependent photoluminescence measurements of the bare quantum wells indicate a crossover from the type-II indirect to the type-I direct transition. The resulting mixing of quantum well and barrier ground states in the conduction band leads to an estimated exciton binding energy systematically exceeding 25 meV. The formation of exciton-polaritons is evidenced in our quantum well microcavity via reflection measurements with Rabi splittings ranging from (13.93 +/- 0.15) meV at low temperature (30 K) to (8.58 +/- 0.40) meV at room temperature (300 K). Furthermore, the feasibility of polariton laser operation is demonstrated under non-resonant optical excitation conditions at 20 K and emission around 1.835 eV. PMID- 29041295 TI - Resonance control of a silicon micro-ring resonator modulator under high-speed operation using the intrinsic defect-mediated photocurrent. AB - A method to stabilize the resonance wavelength of a depletion-type silicon micro ring resonator modulator during high-speed operation is described. The method utilizes the intrinsic defect-mediated photo-absorption of a silicon waveguide and results in a modulator chip fabrication process that is free of heterogeneous integration (for example using germanium), thus significantly reducing the complexity and cost of manufacture. Residual defects, present after p-n junction formation, are found to produce an adequate photocurrent for use as a feedback signal, while an integrated heater is used to compensate for thermal drift via closed-loop control. The photocurrent is measured by a source-meter, which simultaneously provides a DC bias to the integrated heater during high-speed operation. A drop-port or an integrated extrinsic detector is not needed. This feedback control method is experimentally demonstrated via a computer-aided proportional-integral-differential loop. The resonance locking is validated for 12.5 Gb/s intensity modulation in a back-to-back bit-error-rate measurement. The stabilization method described is not limited to a specific modulator design and is compatible with speeds greatly in excess of 12.5 Gb/s, in contrast to the bandwidth limitation of other stabilization methods that rely on intrinsic photo carrier generation through non-linear processes such as two-photon-absorption. Further, the use of intrinsic defects present after standard fabrication insures that no excess loss is associated with this stabilization method. PMID- 29041296 TI - Experimental demonstration of an intelligent control plane with proactive spectrum defragmentation in SD-EONs. AB - The cooperation of software-defined networking and flexible grid optical transport technology allows operators to elastically control the network using software running on a network operating system within a centralized way. However, existing approaches dealing with spectrum fragmentation are mostly the reactive strategy, which reconfigures network resources to overcome spectrum fragmentation when the controller detects the fragmentation. In this paper, we focus on how to improve the control plane intelligence of software-defined elastic optical networks (SD-EONs) by using a proactive strategy. More specifically, we design a novel routing, modulation level and spectrum allocation algorithm (RMLSA) based on spectral efficiency and connectivity (SEC) i.e., SEC-RMLSA, in order to improve the utilization efficiency of network resources. Meanwhile, we develop a routing application and an extended OpenFlow protocol to achieve a seamless operation between the controller and the optical data plane. Moreover, all the proposed methodologies are implemented and demonstrated in an SD-EON testbed that has both OpenFlow-based control plane and data plane. Finally, the proposed framework, experimental demonstration, and numerical evaluation are reported for different optical flows. The results show the system's overall feasibility and efficiency. PMID- 29041297 TI - Spin Hall effect of reflected light in dielectric magneto-optical thin film with a double-negative metamaterial substrate: erratum. AB - An expression error was produced in the text introducing the dynamic matrix of the magnetic layer in [Opt. Express25(16), 19117 (2017)10.1364/OE.25.019117]. What's more, we used two wrong formula numbers in the analysis section of Eq. (11) and Eq. (13). Here we correct the errors. PMID- 29041298 TI - "W-shaped" injection current dependence of electroluminescence linewidth in green InGaN/GaN-based LED grown on silicon substrate. AB - Injection current, and temperature, dependences of the electroluminescence (EL) spectrum from green InGaN/GaN multiple quantum well (MQW)-based light-emitting diodes (LED) grown on a Si substrate, are investigated over a wide range of injection currents (0.5 uA-350 mA) and temperatures (6-350 K). The results show that an increasing temperature can result in the change of injection current dependent behavior of the EL spectrum in initial current range. That is, with increasing the injection current in the low current range, the emission process of the MQWs is dominated by filling effect of low-energetic localized states at the low temperature range of around 6 K, and by Coulomb screening of the quantum confinement Stark effect followed by a filling effect of the higher levels of the low-energetic localized states at the intermediate temperature range of around 160 K. However, when the temperature is further raised to the higher temperature range of around 350 K, the emission process of the MQWs in the low current range is dominated by carrier-scattering effect followed by non-radiative recombination process. The aforementioned current-dependent behaviors of the EL spectrum are mainly attributed to the strong localized effect of the green LED, as confirmed by the anomalous temperature dependence of the EL spectrum measured at the low injection current of 5 uA. In addition, the injection current dependence of external quantum efficiency at different temperatures shows that, with increasing temperature from 6 to 350 K, in addition to the enhanced non-radiative recombination, electron overflow becomes more significant, especially in the higher temperature range above 300 K. PMID- 29041299 TI - Thermophotovoltaics with spectral and angular selective doped-oxide thermal emitters. AB - Deliberate control of thermal emission properties using nanophotonics has improved a number of applications including thermophotovoltaics (TPV), radiative cooling and infrared spectroscopy. In this work, we study the effect of simultaneous control of angular and spectral properties of thermal emitters on the efficiencies of TPV systems. While spectral selectivity reduces sub-bandgap losses, angular selectivity is expected to enhance view factors at larger separation distances and hence to provide flexibilities in cooling the photovoltaic converter. We propose a design of an angular and spectral selective thermal emitter based on waveguide perfect absorption phenomena in epsilon-near zero thin-films. Aluminum-doped Zinc-Oxide is used as an epsilon-near-zero material with a cross-over frequency in the near-infrared. A high contrast grating is designed to restrict the emission in a range of angles around the normal direction, while an integrated filter ensures spectral selectivity to reduce sub-bandgap losses. Theoretical analysis shows an expected relative enhancement of the TPV system efficiency of at least 32% using selective emitters with ideal angular and spectral selectivity at large separation distances compared to a blackbody. This enhancement factor, however, reduces to 3.9% with non-ideal selective emitters. This big reduction of the efficiency is attributed to sub-bandgap losses, off-angular losses and high-temperature dependence of optical constants. PMID- 29041300 TI - Comparison and application of wavelet transform and Kalman filtering for denoising in delta13CO2 measurement by tunable diode laser absorption spectroscopy at 2.008 um. AB - We propose to use the wavelet transform and Kalman filter methods for processing noise in delta13CO2 measurement using laser absorption spectroscopy at 2.008 um and they have been shown to be useful tool for reducing the intrinsic noise of the optical system. Through the performance comparison and analysis of these two denoising techniques for the intrinsic noise reduction of optical system, it can be found that the Kalman filter is a more suitable approach for the extraction of gas isotope measurement signal from a contaminated signal. PMID- 29041301 TI - Analytical modeling of light transport in scattering materials with strong absorption. AB - We have investigated the transport of light through slabs that both scatter and strongly absorb, a situation that occurs in diverse application fields ranging from biomedical optics, powder technology, to solid-state lighting. In particular, we study the transport of light in the visible wavelength range between 420 and 700 nm through silicone plates filled with YAG:Ce3+ phosphor particles, that even re-emit absorbed light at different wavelengths. We measure the total transmission, the total reflection, and the ballistic transmission of light through these plates. We obtain average single particle properties namely the scattering cross-section sigmas, the absorption cross-section sigmaa, and the anisotropy factor u using an analytical approach, namely the P3 approximation to the radiative transfer equation. We verify the extracted transport parameters using Monte-Carlo simulations of the light transport. Our approach fully describes the light propagation in phosphor diffuser plates that are used in white LEDs and that reveal a strong absorption (L/la > 1) up to L/la = 4, where L is the slab thickness, la is the absorption mean free path. In contrast, the widely used diffusion theory fails to describe this parameter range. Our approach is a suitable analytical tool for industry, since it provides a fast yet accurate determination of key transport parameters, and since it introduces predictive power into the design process of white light emitting diodes. PMID- 29041302 TI - Biomimetic spiral grating for stable and highly efficient absorption in crystalline silicon thin-film solar cells. AB - By emulating the phyllotaxis structure of natural plants, which has an efficient and stable light capture capability, a two-dimensional spiral grating is introduced on the surface of crystalline silicon solar cells to obtain both efficient and stable light absorption. Using the rigorous coupled wave analysis method, the absorption performance on structural parameter variations of spiral gratings is investigated firstly. Owing to diffraction resonance and excellent superficies antireflection, the integrated absorption of the optimal spiral grating cell is raised by about 77 percent compared with the conventional slab cell. Moreover, though a 15 percent deviation of structural parameters from the optimal spiral grating is applied, only a 5 percent decrease of the absorption is observed. This reveals that the performance of the proposed grating would tolerate large structural variations. Furthermore, the angular and polarization dependence on the absorption of the optimized cell is studied. For average polarizations, a small decrease of only 11 percent from the maximum absorption is observed within an incident angle ranging from -70 to 70 degrees. The results show promising application potentials of the biomimetic spiral grating in the solar cell. PMID- 29041303 TI - Laser emission from flash ignition of Zr/Al nanoparticles. AB - We report the first laser emission from flash ignition of Zr/Al nanoparticles with the addition of strong oxidizer KClO4 using Nd: YAG as a laser medium. The mixture Zr/Al/Kp-45 (mass ratio = 33%Zr: 33%Al: 34%KClO4) has the highest brightness temperature Tb = 4615 K and the adiabatic flame temperature Tf = 4194 K with the duration of 20 ms. At 1064 nm we measured a maximum output energy of 702.5 mJ with the duration of nearly 10 ms by using only 100 mg mixture with an output coupler (transmission T = 10%). Further optimizing the concentration cavity and increasing the mixture content will yield much higher efficiency and output energy. PMID- 29041304 TI - Land surface temperature retrieval from AMSR-E passive microwave data. AB - The land surface temperature (LST) is a key parameter for energy balance, evapotranspiration and climate change. In this study, two new methods of LST retrieval from passive microwave data are developed: one is deriving LST only using single-channel dual-polarized data based on the relationship between the emissivity and microwave polarization difference index (MPDI) (denoted as Method 1); the other one is deriving LST using the traditional multi-channel method with prior knowledge of the normalized difference vegetation index (NDVI) (denoted as Method 3). Taking Moderate Resolution Imaging Spectroradiometer (MODIS) LST products as the actual LSTs, the coefficients for these algorithms are determined. From the results for the year 2008, it is demonstrated that the root mean square errors (RMSEs) for the LST retrieval using Method 3 are the smallest and range from 2.92 K to 3.44 K, the RMSEs for the LST retrieval using traditional multi-channel method (denoted as Method 2) range from 3.07 K to 4.05 K, and the worst results come from Method 1, whose RMSEs range from 3.11 K to 4.13 K at a frequency of 89 GHz. This could be caused by the fact that the NDVI provides substantial emissivity knowledge in Method 3, and much richer vegetation could result in a more accurate emissivity estimation. PMID- 29041305 TI - Remote sensing of atmospheric NO2 by employing the continuous-wave differential absorption lidar technique. AB - Differential absorption lidar (DIAL) technique employed for remote sensing has been so far based on the sophisticated narrow-band pulsed laser sources, which require intensive maintenance during operation. In this work, a continuous-wave (CW) NO2 DIAL system based on the Scheimpflug principle has been developed by employing a compact high-power CW multimode 450 nm laser diode as the light source. Laser emissions at the on-line and off-line wavelengths of the NO2 absorption spectrum are implemented by tuning the injection current of the laser diode. Lidar signals are detected by a 45 degrees tilted area CCD image sensor satisfying the Scheimpflug principle. Range-resolved NO2 concentrations on a near horizontal path are obtained by the NO2 DIAL system in the range of 0.3-3 km and show good agreement with those measured by a conventional air pollution monitoring station. A detection sensitivity of +/- 0.9 ppbv at 95% confidence level in the region of 0.3-1 km is achieved with 15-minute averaging and 700 m range resolution during hours of darkness, which allows accurate concentration measurement of ambient NO2. The low-cost and robust DIAL system demonstrated in this work opens up many possibilities for field NO2 remote sensing applications. PMID- 29041306 TI - Mixed basis quantum key distribution with linear optics. AB - Two-qubit quantum codes have been suggested to obtain better efficiency and higher loss tolerance in quantum key distribution. Here, we propose a two-qubit quantum key distribution protocol based on a mixed basis consisting of two Bell states and two states from the computational basis. All states can be generated from a single entangled photon pair resource by using local operations on only one auxiliary photon. Compared to other schemes it is also possible to deterministically discriminate all states using linear optics. Additionally, our protocol can be implemented with today's technology. When discussing the security of our protocol we find a much improved resistance against certain attacks as compared to the standard BB84 protocol. PMID- 29041307 TI - Optical bistablility in six-wave mixing parametrical amplification. AB - We investigate the nonreciprocity "infinity"-shape optical bistability (OB) induced by the feedback dressing effect of six-wave mixing parametrically amplified process in a four-level atomic system. Compared to the traditional OB by scanning power, the "infinity"-shape OB is scanning probe frequency and demonstrated by "infinity"-shape non-overlapping region. More, this non overlapping region in the x direction (frequency difference) and in the y direction (intensity difference) could demonstrate the degree of this OB phenomenon of dressed probe and conjugate signals, which can be changed by the intensity of feedback dressing. Further, we find the feedback intensity can be controlled by experimental parameters include powers of external-dressing, frequency detuning, incident phase and the nonlinear phase shift of internal dressing beam. As a result, the nonreciprocity "infinity"-shape OB is more sensitive and multiple than traditional OB. These outcomes have potential applications in logic-gate devices and quantum information processing. PMID- 29041308 TI - Directional enhancement of selected high-order-harmonics from intense laser irradiated blazed grating targets. AB - Relativistically intense laser solid target interaction has been proved to be a promising way to generate high-order harmonics, which can be used to diagnose ultrafast phenomena. However, their emission direction and spectra still lack tunability. Based upon two-dimensional particle-in-cell simulations, we show that directional enhancement of selected high-order-harmonics can be realized using blazed grating targets. Such targets can select harmonics with frequencies being integer times of the grating frequency. Meanwhile, the radiation intensity and emission area of the harmonics are increased. The emission direction is controlled by tailoring the local blazed structure. Theoretical and electron dynamics analysis for harmonics generation, selection and directional enhancement from the interaction between multi-cycle laser and grating target are carried out. These studies will benefit the generation and application of laser plasma based high order harmonics. PMID- 29041309 TI - Tunable Goos-Hanchen shift from graphene ribbon array. AB - The Goos-Hanchen (GH) shift of light beam incident on graphene ribbon array is investigated by Green's function method. Due to the resonance effects of leaky surface plasmons on ribbons, the zeroth-order reflection field shows both giant positive and negative GH shifts. By tuning the graphene Fermi level, we can control the shift conveniently. This effect is important to graphene-based metasurface and electro-optical devices. PMID- 29041310 TI - Simultaneous Airy beam generation for both surface plasmon polaritons and transmitted wave based on metasurface. AB - Based on the amplitude and phase modulation of subwavelength slits, a metasurface which can simultaneously generate Airy beam for surface plasmon polaritons (SPPs) and transmitted wave is presented. Interestingly, by changing the handedness of circularly polarized light, the position of SPPs Airy beam can be switched to the left or right side of the metasurface, while the field distribution and the position of the Airy beam for transmitted wave are not affected. The nondiffracting, self-bending and self-healing properties of the generated Airy beams are analyzed as well. In addition, abruptly autofocusing of SPPs and transmitted wave are demonstrated by interfering two Airy beams. The dual functionality and chirality features of the metasurface can provide more freedoms in the potential applications of Airy beams. PMID- 29041311 TI - Metallic metasurfaces for high efficient polarization conversion control in transmission mode. AB - A high efficient broadband polarization converter is an important component in integrated miniaturized optical systems, but its performances is often restricted by the material structures, metallic metasurfaces for polarization control in transmission mode never achieved efficiency above 0.5. Herein, we theoretically demonstrate that metallic metasurfaces constructed by thick cross-shaped particles can realize a high efficient polarization transformation over a broadband. We investigated the resonant properties of designed matesurfaces and found that the interaction between double FP cavity resonances and double bulk magnetic resonances is the main reason to generate a high transmissivity over a broadband. In addition, through using four resonances effect and tuning the anisotropic optical response, we realized a high efficient (> 0.85) quarter-wave plate at the wavelength range from 1175nm to 1310nm and a high efficient (> 0.9) half-wave plate at the wavelength range from 1130nm to 1230nm. The proposed polarization converters may have many potential applications in integrated polarization conversion devices and optical data storage systems. PMID- 29041312 TI - Automatic spectral calibration for polarization-sensitive optical coherence tomography. AB - Accurate wavelength assignment is important for Fourier domain polarization sensitive optical coherence tomography. Incorrect wavelength mapping between the orthogonal horizontal (H) and vertical (V) polarization channels leads to broadening the axial point spread function and generating polarization artifacts. To solve the problem, we propose an automatic spectral calibration method by seeking the optimal calibration coefficient between wavenumber kH and kV. The method first performs a rough calibration to get the relationship between the wavelength lambda and the pixel number x of the CCD for each channel. And then a precise calibration is taken to bring both polarization interferograms in the same k range through the optimal calibration coefficient. The optimal coefficient is automatically obtained by evaluating the cross-correlation of A-line signals. Simulations and experiments are implemented to demonstrate the performance of the proposed method. The results show that, compared to the peaks method, the proposed method is suitable in both Gaussian and non-Gaussian spectrums with a higher calibration accuracy. PMID- 29041313 TI - Lasing in ring resonators by stimulated Brillouin scattering in the presence of nonlinear loss. AB - We theoretically investigate lasing due to stimulated Brillouin scattering in integrated ring resonators. We give analytic expressions and numerical calculations for the lasing threshold for rings in the presence of for both linear and nonlinear loss. We demonstrate the operation of the ring in the different regimes of amplification and lasing, and show how these regimes depend on the coupling to the ring and on the nonlinear parameters. In the case of nonlinear losses, we find that there can exist an upper threshold to the lasing regime where the losses are dominated by free-carrier absorption. We also find that nonlinear losses can inhibit Brillouin lasing entirely for certain ranges of coupling parameters, and we show how the correct ranges of coupling parameters can be calculated and optimized for the design of integrated Brillouin lasers. PMID- 29041314 TI - Photonic integration platform with pump free microfluidics. AB - Chip based particle sensing using 3D capillary fill microfluidics integrated with monolithically integrated lasers and photodetectors is used to demonstrate the feasibility of true chip scale photonic measurements of fluids. The approach is scalable and manufactured using industry standard compound semiconductor fabrication tools. The need for fluid speed regulation via external pumps is removed by measuring local particle velocity at the point of interrogation and particle position within the fluid flow is derived from multiple time resolved forward scattered light signals. Particle size discrimination of 10 and 15 MUm polystyrene microbeads is used as an example. PMID- 29041315 TI - Proposal and numerical study of a flexible visible photonic crystal defect cavity for nanoscale strain sensors. AB - A flexible photonic crystal cavity, consisting of a III-V active layer embedded in a flexible medium, with a line-defect by removing three air holes for nanoscale structural deformation detection is proposed and optimized. The cavity can hold the photonic band-gap modes with the fundamental mode located at approximately 686 nm, overlapping with the photoluminescence spectrum of the InGaP/InGaAlP quantum wells. Results of finite-difference time-domain simulations indicate that the L3 cavity features an ultra-compact mode volume of 10-3 um3 and high quality factor of 104 at a sub-micron footprint within the studied visible wavelength. Theoretical optical strain sensitivities of approximately 4.5 and 3 nm per epsilon (1% strain for both) for the x and y directions are predicted, respectively. When the cavity is under large bending curvatures, the Q factor rapidly decreases from 8000 to 2000. PMID- 29041316 TI - Nonadiabatic redshifts in high-order harmonic generation from solids. AB - We studied the multi-plateau high-order harmonic generation (HHG) from solids numerically. It is found that the HHG spectra in the second and higher plateaus are redshifted in short laser pulses due to the nonadiabatic effect. The corresponding FWHMs also increase as a function of the harmonic order, suggesting the step-by-step excitation of higher conduction bands in the HHG process. Although the system is symmetric in the coordinate space, even-order harmonics are present. It is due to the fact that the symmetry of electron motions and the population in the higher conduction bands is broken in the k space and time domain based on the indirect step-by-step excitation model. Our numerical results are in good agreement with recent experimental measurements of Ndabashimiye et al. [Nature 534, 520 (2016)]. PMID- 29041317 TI - Experimental demonstration of multi-cavity optoelectronic oscillation over a multicore fiber. AB - We report, for the first time to our knowledge, the experimental demonstration of multi-cavity optoelectronic oscillators where the cavities are provided by the different cores of a multicore fiber. We implemented two multi-cavity architectures over a 20-m-long 7-core fiber link: unbalanced dual-cavity oscillation (the cavity lengths are a multiple of a reference value) and multi cavity Vernier oscillation (the cavity lengths are slightly different). Since all the cavities are hosted under a single fiber cladding and are subject to the same environmental and mechanical conditions, optoelectronic oscillators built upon multicore fibers benefit from improved performance stability as compared to independent singlemode fiber cavities. PMID- 29041318 TI - Composite multiscale entropy analysis of reflective terahertz signals for biological tissues. AB - We demonstrate a composite multiscale entropy (CMSE) method of terahertz (THz) signal complexity analysis to distinguish different biological tissues. The THz signals reflected from fresh porcine skin and muscle tissues were measured and analyzed. The statistically significant difference and separation of the two tissues based on several parameters were analyzed and compared for THz spectroscopy and imaging, which verified the better performance of the CMSE method and further enhancement of the contrast among THz signals that interact with different tissues. This process provides a better analysis and discrimination method for THz spectroscopy and imaging in biomedical applications. PMID- 29041319 TI - 8 x 8 wavelength router of optical network on chip. AB - An integrated 8 x 8 wavelength router based on the micro-ring resonators using 2 x 2 multi-interference (MMI) crossing is demonstrated on silicon-on-insulator (SOI) technology, which is manufactured with microelectronics equipment. Experimental results show a free spectral range (FSR) about ~37 nm, an on/off contrast larger than 20 dB, an imbalance among the channels less than 2 dB, a crosstalk of channels smaller than -10 dB, a spacing between close channels about 3.6 +/- 0.7 nm and an output efficiency of every channel smaller than 20 dB. PMID- 29041320 TI - Fabrication of high-temperature tilted fiber Bragg gratings using a femtosecond laser. AB - We developed a new method to fabricate tilted fiber Bragg gratings (TFBGs) by using a femtosecond laser with a phase mask. During the laser processing, the fiber was obliquely moved at a tilt angle, in which the laser beam and the phase mask were fixed. The peak loss of the cladding modes with a tilt angle of 4.9 degrees reaches to ~-8 dB, and the insertion loss is less than -0.2 dB. The TFBG was stable at temperature up to 700 degrees C and slight degraded at 800 degrees C. The temperature sensing of the TFBG was demonstrated at a high temperature up to 800 degrees C. The temperature sensitivities of the Bragg mode, the ghost mode, and the cladding mode were measured to be 15.72 pm/ degrees C, 15.56 pm/ degrees C, and 15.52 pm/ degrees C, respectively. The refractive index response of the TFBGs was also measured. PMID- 29041321 TI - Quantitative microfluidic delivery based on an optical breakdown-driven micro pump for the fabrication of fiber functional devices. AB - An optical breakdown-driven micro-pump was reported to deliver the quantitative liquid to the fiber microstructure efficiently. The amount of the pumped liquid can be controlled by adjusting the irradiation time of the femtosecond laser pulses. Such a method of microfluidic delivery has potential for the fabrication of fiber functional devices and the rapid injection of analytes into a lab-in fiber for chemical and biological analysis. As a demonstration, a fiber spirit level based on a mobile microbubble was achieved by pumping nanoliter scale liquid into a fiber micro-cavity with this method. PMID- 29041322 TI - Near-zero-index wires. AB - In this work, near-zero-index material boundary properties have been exploited to achieve new electromagnetic functionalities. The extraordinary guiding properties of a cylindrical dielectric rod waveguide surrounded by a thin epsilon-mu-near zero shell is analyzed and discussed. A closed-form solution for the dispersion equation has been developed, able to model and design such properties at will. Analytical and numerical results will confirm that the use of near-zero cover materials leads to extraordinary properties in terms of field configurations, low attenuation, and bandwidth. The dielectric wire acts as an efficient "waveguide" with great potentials for advance nanocircuit and electronics. PMID- 29041323 TI - Boundary element method for 2D materials and thin films. AB - 2D materials emerge as a viable platform for the control of light at the nanoscale. In this context the need has arisen for a fast and reliable tool capable of capturing their strictly 2D nature in 3D light scattering simulations. So far, 2D materials and their patterned structures (ribbons, discs, etc.) have been mostly treated as very thin films of subnanometer thickness with an effective dielectric function derived from their 2D optical conductivity. In this study an extension to the existing framework of the boundary element method (BEM) with 2D materials treated as a conductive interface between two media is presented. The testing of our enhanced method on problems with known analytical solutions reveals that for certain types of tasks the new modification is faster than the original BEM algorithm. Furthermore, the representation of 2D materials as an interface allows us to simulate problems in which their optical properties depend on spatial coordinates. Such spatial dependence can occur naturally or can be tailored artificially to attain new functional properties. PMID- 29041324 TI - Weyl points in a magnetic tetrahedral photonic crystal: erratum. AB - We present an erratum regarding the number of space group in our paper. PMID- 29041325 TI - Spatial mode multiplexing using volume holographic gratings. AB - We experimentally demonstrate spatial mode multiplexing of optical beams using multiplexed volume holographic gratings (MVGHs) formed in phenanthrenquinone-poly (methyl methacrylate) (PQ-PMMA) photopolymer. Multiple spatial modes of Laguerre Gaussian (LG) beams are recorded at the same pupil area of a volume hologram resulting in MVHGs, for simultaneous reconstruction of spatial modes. In addition, a helical phase beam, a non-diffracting beam with conical phase profile, and a parabolic non-diffracting beam with cubic phase profile have also been simultaneously recorded and reconstructed from MVHGs. Utilizing Bragg wavelength degeneracy property of volume hologram these multiplexed modes are reconstructed at multiple wavelengths ranging from blue (450nm) to red (635). Due to combined effect of three-dimensional pupil, Bragg wavelength degeneracy, angular selectivity, together with spatial mode properties these, MVHGs can act as spatial mode filter with spectral filtering property. Advantages of volume holography in beam shaping are discussed. Multiple first diffraction orders with desired beam shapes obtained from the single optical element (i.e. a volume hologram with MVHGs) may find important applications in optical communication experiments, and in volume holographic imaging and microscopy. Experimental results show solid evidence that MVGHs in beam shaping provide a simple, compact, single element, and direct way to multiplex spatial modes. PMID- 29041326 TI - Polarization imaging camera with a waveplate array fabricated with a femtosecond laser inside silica glass. AB - In this study, we demonstrate a polarization imaging camera with a waveplate array of a silica glass fabricated by femtosecond (fs) laser direct writing. To use a waveplate array of silica glass for polarization imaging, non-uniformity of the transmittance and retardance in the waveplates must be considered. Therefore, we used a general method of polarization analysis with system matrices determined experimentally for all the units in the waveplate array. We found that a figure of merit based on the determinant of the system matrix could be applied to improve the accuracy of analysis and the robustness to the retardance dispersion for both the simulated and the fabricated waveplate array. PMID- 29041327 TI - Tunable optical switching in the near-infrared spectral regime by employing plasmonic nanoantennas containing phase change materials. AB - We propose the design of switchable plasmonic nanoantennas (SPNs) that can be employed for optical switching in the near-infrared regime. The proposed SPNs consist of nanoantenna structures made up of a plasmonic metal (gold) such that these nanoantennas are filled with a switchable material (vanadium dioxide). We compare the results of these SPNs with inverted SPN structures that consist of gold nanoantenna structures surrounded by a layer of vanadium dioxide (VO2) on their outer surface. These nanoantennas demonstrate switching of electric-field intensity enhancement (EFIE) between two states (On and Off states), which can be induced thermally, optically or electrically. The On and Off states of the nanoantennas correspond to the metallic and semiconductor states, respectively of the VO2 film inside or around the nanoantennas, as the VO2 film exhibits phase transition from its semiconductor state to the metallic state upon application of thermal, optical, or electrical energy. We employ finite-difference time-domain (FDTD) simulations to demonstrate switching in the EFIE for four different SPN geometries - nanorod-dipole, bowtie, planar trapezoidal toothed log-periodic, and rod-disk - and compare their near-field distributions for the On and Off states of the SPNs. We also demonstrate that the resonance wavelength of the EFIE spectra gets substantially modified when these SPNs switch between the two states. PMID- 29041328 TI - Dual polarization split lenses. AB - We report the realization of polarization sensitive split lens configurations. While split lenses can be used to easily generate different types of controlled structured light patterns, their realization has been limited so far to scalar beams. Here we propose and experimentally demonstrate their generalization to vectorial split lenses, leading to light patterns with customized intensity and state of polarization. We demonstrate how these polarization split lenses can be experimentally implemented by means of an optical system using two liquid crystal spatial light modulators, each one phase modulating one orthogonal polarization component. As a result, we demonstrate the experimental generation of vectorial beams with different shapes generated with these dual polarization split lenses. Excellent experimental results are provided in each case. The proposed technique is a simple method to generate structured light beams with polarization diversity, with potential applications in polarimetry, customized illuminators or quantum optics. PMID- 29041329 TI - Silicon-organic hybrid (SOH) modulators for intensity-modulation / direct detection links with line rates of up to 120 Gbit/s. AB - High-speed interconnects in data-center and campus-area networks crucially rely on efficient and technically simple transmission techniques that use intensity modulation and direct detection (IM/DD) to bridge distances of up to a few kilometers. This requires electro-optic modulators that combine low operation voltages with large modulation bandwidth and that can be operated at high symbol rates using integrated drive circuits. Here we explore the potential of silicon organic hybrid (SOH) Mach-Zehnder modulators (MZM) for generating high-speed IM/DD signals at line rates of up to 120 Gbit/s. Using a SiGe BiCMOS signal conditioning chip, we demonstrate that intensity-modulated duobinary (IDB) signaling allows to efficiently use the electrical bandwidth, thereby enabling line rates of up to 100 Gbit/s at bit error ratios (BER) of 8.5 * 10-5. This is the highest data rate achieved so far using a silicon-based MZM in combination with a dedicated signal-conditioning integrated circuit (IC). We further show four-level pulse-amplitude modulation (PAM4) at lines rates of up to 120 Gbit/s (BER = 3.2 * 10-3) using a high-speed arbitrary-waveform generator and a 0.5 mm long MZM. This is the highest data rate hitherto achieved with a sub-millimeter MZM on the silicon photonic platform. PMID- 29041330 TI - Electrically tunable binary phase Fresnel lens based on a dielectric elastomer actuator. AB - We propose and demonstrate an all-solid-state tunable binary phase Fresnel lens with electrically controllable focal length. The lens is composed of a binary phase Fresnel zone plate, a circular acrylic frame, and a dielectric elastomer (DE) actuator which is made of a thin DE layer and two compliant electrodes using silver nanowires. Under electric potential, the actuator produces in-plane deformation in a radial direction that can compress the Fresnel zones. The electrically-induced deformation compresses the Fresnel zones to be contracted as high as 9.1% and changes the focal length, getting shorter from 20.0 cm to 14.5 cm. The measured change in the focal length of the fabricated lens is consistent with the result estimated from numerical simulation. PMID- 29041331 TI - Chromatic aberrations correction for imaging spectrometer based on acousto-optic tunable filter with two transducers. AB - The acousto-optic tunable filter (AOTF) with wide wavelength range and high spectral resolution has long crystal and two transducers. A longer crystal length leads to a bigger chromatic focal shift and the double-transducer arrangement induces angular mutation in diffracted beam, which increase difficulty in longitudinal and lateral chromatic aberration correction respectively. In this study, the two chromatic aberrations are analyzed quantitatively based on an AOTF optical model and a novel catadioptric dual-path configuration is proposed to correct both the chromatic aberrations. The test results exhibit effectiveness of the optical configuration for this type of AOTF-based imaging spectrometer. PMID- 29041332 TI - Rabi oscillations in the spatial profiles of superfluorescent pulses from rubidium vapor. AB - In this study, we investigate 420-nm yoked superfluorescence (YSF) emitted from the atomic vapor of rubidium (Rb) by driving the Rb 5S - 5D two-photon transition with an ultrashort pulsed laser. When the pump pulse is close to its transform limit (~ 100 fs) or down-chirped up to around 200 fs, the 420-nm YSF appears as a low-divergence beam with a ring-shaped radial profile. Although such a beam profile is less sensitive to the vapor pressure of Rb in a cell, its diameter rigorously varies as a function of the pump-pulse power. By numerically solving a time-dependent Schrodinger equation for a single-Rb atom, we well reproduce our experimental observation, indicating that a single-atom Rabi oscillation is responsible for the spatial beam profile of the 420-nm emission. PMID- 29041333 TI - Coded aperture optimization in compressive X-ray tomography: a gradient descent approach. AB - Coded aperture X-ray computed tomography (CT) has the potential to revolutionize X-ray tomography systems in medical imaging and air and rail transit security - both areas of global importance. It allows either a reduced set of measurements in X-ray CT without degradation in image reconstruction, or measure multiplexed X rays to simplify the sensing geometry. Measurement reduction is of particular interest in medical imaging to reduce radiation, and airport security often imposes practical constraints leading to limited angle geometries. Coded aperture compressive X-ray CT places a coded aperture pattern in front of the X-ray source in order to obtain patterned projections onto a detector. Compressive sensing (CS) reconstruction algorithms are then used to recover the image. To date, the coded illumination patterns used in conventional CT systems have been random. This paper addresses the code optimization problem for general tomography imaging based on the point spread function (PSF) of the system, which is used as a measure of the sensing matrix quality which connects to the restricted isometry property (RIP) and coherence of the sensing matrix. The methods presented are general, simple to use, and can be easily extended to other imaging systems. Simulations are presented where the peak signal to noise ratios (PSNR) of the reconstructed images using optimized coded apertures exhibit significant gain over those attained by random coded apertures. Additionally, results using real X ray tomography projections are presented. PMID- 29041334 TI - Inverse incoherent engineering. AB - We propose a protocol to construct shortcuts of adiabaticity for open quantum systems in unitary evolution. Using the dynamical invariants of open quantum systems, we design a convenient form of the driver Hamiltonian to accelerate the adiabatic decoherence free subspaces scheme (TDFs) and engineer a quantum state from the initial state into the target state. Since the trajectory of TDFSs is determined by the incoherent control process, we would like to call it as the inverse incoherent engineering protocol. We apply the method to a two-qubits system which interacts with a time-dependent vacuum squeezed field to prepare some maximally entangled states of it. The results illustrate that our protocol can be used both in the adiabatic and nonadiabatic regime with perfect fidelity. PMID- 29041335 TI - Nanostructured GaAs solar cells via metal-assisted chemical etching of emitter layers. AB - GaAs solar cells with nanostructured emitter layers were fabricated via metal assisted chemical etching. Au nanoparticles produced via thermal treatment of Au thin films were used as etch catalysts to texture an emitter surface with nanohole structures. Epi-wafers with emitter layers 0.5, 1.0, and 1.5 um in thickness were directly textured and a window layer removal process was performed before metal catalyst deposition. A nanohole-textured emitter layer provides effective light trapping capabilities, reducing the surface reflection of a textured solar cell by 11.0%. However, because the nanostructures have high surface area to volume ratios and large numbers of defects, various photovoltaic properties were diminished by high recombination losses. Thus, we have studied the application of nanohole structures to GaAs emitter solar cells and investigated the cells' antireflection and photovoltaic properties as a function of the nanohole structure and emitter thickness. Due to decreased surface reflection and improved shunt resistance, the solar cell efficiency increased from 4.25% for non-textured solar cells to 7.15% for solar cells textured for 5 min. PMID- 29041336 TI - Graphene-assisted high-efficiency liquid crystal tunable terahertz metamaterial absorber. AB - In this paper, few-layer porous graphene is integrated onto the surface of a metasurface layer to provide a uniform static electric field to efficiently control liquid crystal, thereby enabling flexible metamaterial designs. We demonstrate a tunable cross-shaped metamaterial absorber with different arm lengths driven by this combined metasurface and graphene electrode. The resulting absorber supports a resonant frequency tunable from 0.75 to 1 THz with a high quality factor, and amplitude modulation of ~80% at these frequencies with an applied voltage of 10 V. Furthermore, the near-field intensity and hot spot distribution can be manipulated over a broad range. PMID- 29041337 TI - Tunable Fano resonance based on grating-coupled and graphene-based Otto configuration. AB - A grating-coupled Otto configuration consisting of multilayer films including a few layers of graphene and a germanium prism is proposed. A sharp and sensitive Fano resonance appears when a graphene surface plasmon polaritons (GSPPs) mode from the graphene-dielectric interface couple with the planar waveguide (PWG) mode. We utilize the classical harmonic oscillator (CHO) to explain Fano resonance and study the influence of various parameters of the configuration on the reflection spectra. The highly sensitive sensor can be achieved by introducing detected materials into Otto structure. In addition, we investigated the effects from material loss arising in our designs. All of the simulations are performed by a finite element method (FEM). PMID- 29041338 TI - Semi-analytical approach to supermode spatial solitons formation in nematic liquid crystals. AB - We study light propagation in nematic liquid crystals in the context of spatial optical solitons formation. We propose a simple analytical model with multiplicative nonlinearity, which represents (qualitatively) the liquid crystal response by comprising the competition between focusing (reorientational) and defocusing (thermal) nonlocal nonlinearities. We show that at sufficiently high input power the interplay between both nonlinearities leads to the formations of two-peak solitons, which represent supermodes of the self-induced extended waveguide structure. We explain the beam splitting mechanism, discuss threshold effects and conclude that similar phenomena might be present in other media with competing nonlocal nonlinearities. PMID- 29041339 TI - Analysis of material selection on dielectric metasurface performance. AB - Dielectric metasurfaces are ultra-thin devices that can shape optical wavefronts with extreme control. While an assortment of materials possessing a wide range of dielectric constants have been proposed and implemented, the minimum dielectric contrast required for metasurfaces to achieve high-efficiency performance, for a given device function and feature size constraint, is unclear. In this Article, we examine the impact of dielectric material selection on metasurface efficiency at optical frequencies. As a model system, we design transmissive, single-layer periodic metasurfaces (i.e., metagratings) using topology optimization, and we sweep device thickness and light deflection angle for differing material types. We find that for modest deflection angles below 40 degrees, materials with relatively low dielectric constants near 4 can be used to produce metagratings with efficiencies over 80%. However, ultra-high-efficiency devices designed for large deflection angles and multiple functions require materials with high dielectric constants comparable to silicon. We also identify, for all materials, a minimum device thickness required for optimal metagrating performance that scales inversely with dielectric constant. Our work presents materials selection guidelines for high-performance metasurfaces operating at visible and infrared wavelengths. PMID- 29041340 TI - Estimation of chlorophyll concentration in waters near Hokkaido using the linear combination method. AB - An inversion algorithm is implemented to retrieve the surface chlorophyll a (Chl) concentration using satellite observation data from the MODIS instrument. The algorithm employs a simple and flexible index (LCI) to combine with the Chl without explicit correction for aerosol scattering. To investigate the sensitivity of LCI to Chl and other influence factors, an oceanic radiative transfer model coupled with a comprehensive bio-optical module is developed. It is studied that the LCI is significantly linear to Chl and not sensitive to other influence factors, except in very low oceanic salinity or scattering angle conditions, where over a 12% relative difference of derived Chl exists. Inversion results show the retrieved Chl are highly consistent with the MODIS operational data products in waters near Hokkaido, with the correlation coefficient, root mean square deviation, and average percentage difference of 0.9702, 0.3756 mg m 3, and 13.89%, respectively. Investigation of the validity of this algorithm with a variety of atmospheric conditions indicates that the residual influence of atmosphere on the LCI index, after Rayleigh scattering correction, is generally within +/- 0.001, allowing the retrieval error of Chl at less than 25% in most cases. A good comparison between retrieval and in situ measurements is also identified and implies that the retrieval accuracy via the LCI method depends on the linear combination coefficients used and the bio-optical module selected, while effects of polarization can be ignored. PMID- 29041341 TI - Interference-induced filament array in fused silica. AB - One- and two-dimensional filament arrays are obtained in fused silica by using two and three interfered femtosecond laser beams, respectively. By modulating the number, cross angle, and azimuth of the beams, the dimension, period, orientation, and geometry of the filament-array can be controlled. The multiple beams interference method provides a convenient and effective method to generate and control the filament array in optical media with multiple degrees of freedom but without any external pulse modulation or focal element. PMID- 29041342 TI - Holographic tomography with object rotation and two-directional off-axis illumination. AB - A hybrid system of holographic tomography, which utilizes rotation of a sample and two-directional, off-axis illumination is proposed. The applied type of illumination brings two major benefits. First, it offers theoretical potential for the resolution improvement with respect to conventional tomography. Second, it enables effective, numerical compensation of the defocus error, which is achieved with an accurate, noise-immune autofocusing. Hence, the main practical obstacle of hybrid tomography is removed and its high-resolution potential is put into practice. The utility of the proposed concept is experimentally demonstrated with the tomographic measurement of a photonic crystal fiber. PMID- 29041343 TI - Near-field edge fringes at sharp material boundaries. AB - We have studied the formation of near-field fringes when sharp edges of materials are imaged using scattering-type scanning near-field optical microscope (s-SNOM). The materials we have investigated include dielectrics, metals, a near-perfect conductor, and those that possess anisotropic permittivity and hyperbolic dispersion. For our theoretical analysis, we use a technique that combines full wave numerical simulations of tip-sample near-field interaction and signal demodulation at higher orders akin to what is done in typical s-SNOM experiments. Unlike previous tip-sample interaction near-field models, our advanced technique allows simulation of the realistic tip and sample structure. Our analysis clarifies edge imaging of recently emerged layered materials such as hexagonal boron nitride and transition metal dichalcogenides (in particular, molybdenum disulfide), as well as traditional plasmonic materials such as gold. Hexagonal boron nitride is studied at several wavelengths, including the wavelength where it possesses excitation of phonon-polaritons and hyperbolic dispersion. Based on our results of s-SNOM imaging in different demodulation orders, we specify resonant and non-resonant types of edges and describe the edge fringes for each case. We clarify near-field edge-fringe formation at material sharp boundaries, both outside bright fringes and the low-contrast region at the edge, and elaborate on the necessity of separating them from propagating waves on the surface of polaritonic materials. PMID- 29041344 TI - Bandwidth broadening of a graphene-based circular polarization converter by phase compensation. AB - We present a broadband tunable circular polarization converter composed of a single graphene sheet patterned with butterfly-shaped holes, a dielectric spacer, and a 7-layer graphene ground plane. It can convert a linearly polarized wave into a circularly polarized wave in reflection mode. The polarization converter can be dynamically tuned by varying the Fermi energy of the single graphene sheet. Furthermore, the 7-layer graphene acting as a ground plane can modulate the phase of its reflected wave by controlling the Femi energy, which provides constructive interference condition at the surface of the single graphene sheet in a broad bandwidth and therefore significantly broadens the tunable bandwidth of the proposed polarization converter. PMID- 29041345 TI - Ocean color retrieval from MWI onboard the Tiangong-2 Space Lab: preliminary results. AB - The Moderate-resolution Wide-wavelengths Imager (MWI) is the ocean color sensor onboard the Chinese Tiangong-2 Space Lab, which was launched on Sept. 15, 2016. The MWI is also an experimental satellite sensor for the Chinese next generation ocean color satellites, HY-1E and HY-1F, which are scheduled for launch around 2021. With 100m spatial resolution and 18 bands in the visible light and infrared wavelengths, MWI provides high quality ocean color observations especially over coastal and inland waters. For the first time, this study presents some important results on water color products generated from the MWI for the oceanic and inland waters. Preliminary validation in turbid coastal and inland waters showed good agreement between the MWI-retrieved normalized water-leaving radiances (Lwn) and in situ data. Further, the MWI-retrieved Lwn values compared well with the GOCI retrieved Lwn values, with the correlation coefficient greater than 0.90 and mean relative differences smaller than 26.63% (413 nm), 4.72% (443 nm), 3.69% (490 nm), 7.15% (565 nm), 9.45% (665 nm), 8.11% (682.5 nm), 14.68% (750 nm) and 18.55% (865 nm). As for the Level 2 product (e.g, total suspended matter TSM) in turbid Yangtze River Estuary and Hangzhou Bay waters, the relative difference between MWI and GOCI-derived TSM values was ~18.59% with the correlation coefficient of 0.956. In open-oceanic waters, the retrieved MWI-Chla distributions were well consistent with the MODIS/Aqua and VIIRS Chla values products and resolved finer spatial structures of phytoplankton blooms. This study provides encouraging results for the MWI's performance and operational applications in oceanic and inland regions. PMID- 29041346 TI - Bessel-correlated supercontinuum fields. AB - We examine the spatial coherence properties of supercontinuum fields generated by illuminating rotating bulk media with intense pulsed beams. Theoretical models are presented, which indicate the possibility of generating a class of Bessel correlated fields (in time-averaged sense) using tilted plane-parallel glass plates and wedges as media for generation of supercontinuum radiation. In special cases, the ensuing fields have a strictly identical functional form in the spatial and angular domains. Some of the main results are verified experimentally by measuring the spatial coherence properties of bulk-generated supercontinuum fields using a wavefront-folding interferometer. PMID- 29041347 TI - Plasmonic in-plane total internal reflection: azimuthal polarized beam focusing and application. AB - Due to the characteristic of surface plasmon polaritons (SPP) excitation, radial polarized beams and circular polarized beams are widely used for plasmonic lens and plasmonic near field focusing. In this paper, a plasmonic lens based on in plane total internal reflection (TIR) scheme is proposed and numerically demonstrated to achieve the simultaneous nanofocusing of azimuthal and radial polarized beams. By means of the in-plane TIR mechanism, the operation bandwidth of lens ranges from visible light to mid-infrared. The proposed structure has been utilized in the design of a plasmonic liquid refractive index sensor and is expected to find potential applications in near-field optical energy focusing, near-field imaging and sensing. PMID- 29041348 TI - Efficient 1620 nm continuous-wave laser operation of Czochralski grown Er:Yb:Lu2Si2O7 crystal. AB - Efficient continuous-wave diode-pumped laser operation of Czochralski grown Er:Yb:Lu2Si2O7 crystal is reported. Polarized absorption and emission spectra, fluorescence lifetimes, and energy transfer efficiency from Yb3+ to Er3+ were determined. A maximal output power of 522 mW was achieved at 1620 nm with slope efficiency of 15.8% and absorbed pump threshold of 470 mW. Among the Er3+ and Yb3+ co-doped materials with long fluorescence lifetimes of the upper level 4I13/2, which are candidates for gain media of pulsed laser around 1.55 MUm with high energy, comprehensive performance of the Er:Yb:Lu2Si2O7 crystal is the best till now. PMID- 29041349 TI - High repetition rates optically active langasite electro-optically Q-switched laser at 1.34 MUm. AB - An electro-optically Q-switched pulsed laser at 1.34 MUm with a repetition rate of 100 kHz applying optically active langasite (La3Ga5SiO14) crystal has been reported. With Nd:YVO4 as laser crystal, the electro-optically Q-switched pulsed lasers were obtained with the maximum repetition rate of 100 kHz, maximum average output power of 2.42 W, and a minimum pulse width of 2.4 ns. Based on the theory of rate equations, the optimal pulse energy of the electro-optical Q-switching could be calculated. The experimental results have been found to be matched well with the theoretical calculations. To the best of our knowledge, this work presents the highest repetition rate and shortest pulse width which are achieved by an electric-optic LGS Q-switching at the wavelength of 1.34 MUm, and it enriches the material categories for generating the high repetition rate pulsed laser. PMID- 29041350 TI - Complete measurement of spatiotemporally complex multi-spatial-mode ultrashort pulses from multimode optical fibers using delay-scanned wavelength-multiplexed holography. AB - We introduce a simple delay-scanned complete spatiotemporal intensity-and-phase measurement technique based on wavelength-multiplexed holography to characterize long, complex pulses in space and time. We demonstrate it using pulses emerging from multi-mode fiber. This technique extends the temporal range and spectral resolution of the single-frame STRIPED FISH technique without using an otherwise required expensive ultranarrow-bandpass filter. With this technique, we measured the complete intensity and phase of up to ten fiber modes from a multi-mode fiber (normalized frequency V ~10) over a ~3ps time range. Spatiotemporal complexities such as intermodal delay, modal dispersion, and material dispersion were also intuitively displayed by the retrieved results. Agreement between the reconstructed color movies and the monitored time-averaged spatial profiles confirms the validity to this delay-scanned STRIPED FISH method. PMID- 29041351 TI - Fast response and transparent optically isotropic liquid crystal diffraction grating. AB - We have demonstrated an electrically tunable less polarization sensitive and fast response nanostructured polymer dispersed liquid crystal (nano-PDLC) diffraction grating. Fabricated nano-PDLC is optically transparent in visible wavelength regime. The optical isotropic nature was increased by minimizing the liquid crystal droplet size below visible wavelength thereby eliminated scattering. Diffraction properties of in-plane switching (IPS) and fringe-field switching (FFS) cells were measured and compared with one another up to four orders. We have obtained a pore-type polymer network constructed by highly interlinked polymer beads at which the response time is improved by strong interaction of liquid crystal molecules with polymer beads at interface. The diffraction pattern obtained by transparent nano-PDLC film has several interesting properties such as less polarization dependence and fast response. This device can be used as transparent tunable diffractor along with other photonic application. PMID- 29041352 TI - Physical-geometric optics method for large size faceted particles. AB - A new physical-geometric optics method is developed to compute the single scattering properties of faceted particles. It incorporates a general absorption vector to accurately account for inhomogeneous wave effects, and subsequently yields the relevant analytical formulas effective and computationally efficient for absorptive scattering particles. A bundle of rays incident on a certain facet can be traced as a single beam. For a beam incident on multiple facets, a systematic beam-splitting technique based on computer graphics is used to split the original beam into several sub-beams so that each sub-beam is incident only on an individual facet. The new beam-splitting technique significantly reduces the computational burden. The present physical-geometric optics method can be generalized to arbitrary faceted particles with either convex or concave shapes and with a homogeneous or an inhomogeneous (e.g., a particle with a core) composition. The single-scattering properties of irregular convex homogeneous and inhomogeneous hexahedra are simulated and compared to their counterparts from two other methods including a numerically rigorous method. PMID- 29041353 TI - Yb3+ heavily doped photonic crystal fiber lasers prepared by the glass phase separation technology. AB - We report a Yb3+ heavily doped photonic crystal fiber with 30 MUm core diameter manufactured for the first time by an alternative technique. Silica core rods with a diameter of 3 mm and a length of 280 mm were prepared by the sodium borosilicate glass phase-separation technology. The measurements show that the fiber has an Yb3+ concentration of 22810 ppm by weight, and a resultant absorption of approximately 8.5 dB/m at 976 nm. The Yb3+ ions are distributed throughout the fiber core with an excellent homogeneity. The laser performance demonstrates a high slope efficiency of 64.5% for laser emission at 1033.4 nm and a low power threshold of 3 W within a short fiber length of 1 m. This novel approach provides an alternative means of preparing large active silica rods with high doping levels and excellent material homogeneity for large mode area fibers with complex designs. PMID- 29041354 TI - All-dielectric KTiOPO4 metasurfaces based on multipolar resonances in the terahertz region. AB - We employ ferroelectrics to study the multipolar scattering in all-dielectric metasurfaces based on KTiOPO4 (KTP) micro-disks for efficient manipulation of electromagnetic waves in the THz spectral region (0.6-1.5 THz). By adjusting the aspect ratio of the disks near the multipolar resonances, we show that the KTP disk array can form a multifunctional metasurface that covers the entire range of the electromagnetic response with resonantly enhanced anisotropic properties. The proposed ferroelectric metasurfaces will provide a versatile platform to manipulate THz waves, and open possibilities to monolithically combine it with THz generation. PMID- 29041355 TI - Optical readout of hydrogen storage in films of Au and Pd. AB - For hydrogen sensor and storage applications, films of Au and Pd were (i) co sputtered at different rates or (ii) deposited in a sequentially alternating fashion to create a layered structure on a cover glass. Peculiarities of hydrogen uptake and release were optically monitored using 1.3 MUm wavelength light. Increase of optical transmission was observed for hydrogenated Pd-rich films of 10-30 nm thickness. Up to a three times slower hydrogen release took place as compared with the hydrogen uptake. Compositional ratio of Au:Pd and thermal treatment of films provided control over the optical extinction changes and hydrogen uptake/release time constants. Higher uptake and release rates were observed in the annealed Au:Pd films as compared to those deposited at room temperature and were faster for the Auricher films. Three main parameters relevant for sensors: sensitivity, selectivity, stability (reproducibility) are discussed together with the hydrogenation mechanism in Au:Pd alloys. PMID- 29041356 TI - On the quantification of spatial resolution for three-dimensional computed tomography of chemiluminescence. AB - Three-dimensional computed tomography of chemiluminescence (CTC) for combustion diagnostics is attracting a surged research interest due to recent progress in sensor technologies and reduced costs of high-speed cameras. For example, it has been applied to recover the 3D distributions of intermediate chemical species such as CH* and OH*, heat release rate, and flame topology. Although these applications were demonstrated to be successful, there are still a few drawbacks of this technique that have not be cured. For example, to the best of the authors' knowledge, all the imaging models that have been developed so far ignore the imperfections of cameras such as lens distortion and skewness. However, this will unavoidably introduce errors into the weight matrix. In addition, spatial resolution of a CTC system is a critical performance parameter. However, it has only been studied qualitatively and no quantitative quantification method is reported so far. This work aims to solve these problems by improving the imaging model and developing a method based on edge spread function for the quantification of spatial resolution. Although this work is conducted under the context of CTC for combustion diagnostics, it also provides useful insights for other tomographic modalities such as volumetric laser-induced fluorescence and tomographic laser-induced incandescence. PMID- 29041357 TI - Dynamic position shifts of X-ray emission from a water film induced by a pair of time-delayed femtosecond laser pulses. AB - Femtosecond double-pulsed laser excitation of a water film in air showed enhancements of X-ray intensity as compared with single pulse irradiation. The position of the highest yield of X-rays strongly depends on temporal separation between the pre-pulse and the main-pulse (energy ratios where ~ 1 : 10). The strongest X-ray emission was observed at 10-15 ns delay of the main-pulse. Nanoscale roughening of water surface can account for the observation. PMID- 29041358 TI - Sub 23 MUHz instantaneous linewidth and frequency stability measurements of the beat note from an offset phase locked single frequency heterodyned Nd:YAG laser system. AB - We report, what is to the best of our knowledge, the narrowest instantaneous linewidth measurement of the beat frequency between two phase locked heterodyned 1.319 MUm Nd:YAG lasers. At both 65 kHz and 31.7 GHz beat frequencies, we measured the instantaneous 3 dB linewidth of the optically-generated microwave tones to be < 22.8 MUHz, limited only by the minimum instrument resolution. Allan deviation measurements indicate that the laser system follows a 5 MHz quartz reference oscillator to stability levels of sigmay (1s) = 8.4 * 10-12. At 10.24 GHz, the laser system follows a sapphire loaded cavity oscillator to stability levels of sigmay (1s) = 1.6 * 10-11. For these measurements, the optical beat note closely follows the linewidth and stability of the driving microwave frequency reference. PMID- 29041359 TI - Variable self-powered light detection CMOS chip with real-time adaptive tracking digital output based on a novel on-chip sensor. AB - This paper provides a solution for a self-powered light direction detection with digitized output. Light direction sensors, energy harvesting photodiodes, real time adaptive tracking digital output unit and other necessary circuits are integrated on a single chip based on a standard 0.18 um CMOS process. Light direction sensors proposed have an accuracy of 1.8 degree over a 120 degree range. In order to improve the accuracy, a compensation circuit is presented for photodiodes' forward currents. The actual measurement precision of output is approximately 7 ENOB. Besides that, an adaptive under voltage protection circuit is designed for variable supply power which may undulate with temperature and process. PMID- 29041360 TI - Surface topography acquisition method for double-sided near-right-angle structured surfaces based on dual-probe wavelength scanning interferometry. AB - This paper proposes an approach to measure double-sided near-right-angle structured surfaces based on dual-probe wavelength scanning interferometry (DPWSI). The principle and mathematical model is discussed and the measurement system is calibrated with a combination of standard step-height samples for both probes vertical calibrations and a specially designed calibration artefact for building up the space coordinate relationship of the dual-probe measurement system. The topography of the specially designed artefact is acquired by combining the measurement results with white light scanning interferometer (WLSI) and scanning electron microscope (SEM) for reference. The relative location of the two probes is then determined with 3D registration algorithm. Experimental validation of the approach is provided and the results show that the method is able to measure double-sided near-right-angle structured surfaces with nanometer vertical resolution and micrometer lateral resolution. PMID- 29041361 TI - Tapered silicon core fibers with nano-spikes for optical coupling via spliced silica fibers. AB - Reported here is the fabrication of tapered silicon core fibers possessing a nano spike input that facilitates their seamless splicing to conventional single mode fibers. A proof-of-concept 30 um cladding diameter fiber-based device is demonstrated with nano-spike coupling and propagation losses below 4 dB and 2 dB/cm, respectively. Finite-element-method-based simulations show that the nano spike coupling losses could be reduced to below 1 dB by decreasing the cladding diameters down to 10 um. Such efficient and robust integration of the silicon core fibers with standard fiber devices will help to overcome significant barriers for all-fiber nonlinear photonics and optoelectronics. PMID- 29041362 TI - Generating liquid nanojets from copper by dual laser irradiation for ultra-high resolution printing. AB - When the energy of a short laser pulse is localized in a fluid material, a flow motion is induced that can lead to the generation of free-surface jets. This nozzle-free jetting process is exploited to print conductive materials, typically metal nanoparticle inks, but this approach remains limited to the transfer of low viscosity fluids with a minimum feature size of few micrometers. We introduce a dual-laser method to achieve reproducible high-aspect-ratio jets from thin solid films. A first laser irradiation induces the melting of copper thin films and a second synchronized short pulse irradiation initiates the jetting process. Using time-resolved microscopy, we investigate the influence of the film thickness on the flow motion mechanisms and the ejection dynamics. For a wide range of laser fluences, we present observations similar to those obtained when the jets are generated by a single laser pulse from liquid donor films. The use of a solid film allows reducing the film thickness and then the volume of transferred material. Finally, we analyze these results in the perspective of using this double pulse LIFT technique for additive manufacturing of nano-micro-structures. Stable jets are formed from the copper films over distances exceeding 50-MUm and are exploited to demonstrate periodic printing of 1.5-MUm diameter droplets. PMID- 29041363 TI - Transmission and plasmonic resonances on quasicrystal metasurfaces. AB - The control of light-matter interaction in metasurfaces offers an unexplored potential for the excitation and manipulation of light. Here, we combine experimental terahertz time-domain spectroscopy and near-field scanning terahertz microscopy to demonstrate the role of reciprocal vectors in the transmission and plasmonic resonances of quasicrystal metasurfaces. An investigation of two dimensional metasurface structures with different rotationally symmetric quasicrystal arrangements demonstrates that the transmission minima resulting from Wood's anomaly are directly related to the surface plasmon resonances. We also find that the surface plasmon resonances of the quasicrystal metasurface were determined by the reciprocal vectors, which could be well explained by the coupling condition of the resonances, and the characteristic frequencies remain un-shifted under various slit sizes. Our findings demonstrate a new potential in developing novel plasmonic metasurfaces. PMID- 29041364 TI - Perfectly matched layers for nonlocal media with hydrodynamic-Drude description: a transformation optics approach. AB - We develop a transformation optics theory for the nonlocal media in the hydrodynamic Drude model by generalizing the free-electron current density equation to a transformation invariant form. Applying the transformation optics theory, perfectly matched layers (PMLs) for the nonlocal media are theoretically formulated and implemented in frequency domain with finite element method. The nonlocal PMLs are shown to absorb outgoing surface and volume plasmons without inducing unphysical reflections. The effectiveness of the nonlocal PMLs is quantitatively demonstrated by the behaviors that the numerical errors continuously approach zero with increasing linear mesh density. PMID- 29041365 TI - Condensation phenomenon detection through surface plasmon resonance. AB - The aim of this work is to optically detect the condensation of acetone vapor on an aluminum plate cooled down in a two-phase environment (liquid/vapor). Sub micron period aluminum based diffraction gratings with appropriate properties, exhibiting a highly sensitive plasmonic response, were successfully used for condensation experiments. A shift in the plasmonic wavelength resonance has been measured when acetone condensation on the aluminum surface takes place due to a change of the surrounding medium close to the surface, demonstrating that the surface modification occurs at the very beginning of the condensation phenomenon. This paper presents important steps in comprehending the incipience of condensate droplet and frost nucleation (since both mechanisms are similar) and thus to control the phenomenon by using an optimized engineered surface. PMID- 29041366 TI - Spectral element boundary integral method with periodic layered medium dyadic Green's function for multiscale nano-optical scattering analysis. AB - In this work, we propose a numerical solver combining the spectral element - boundary integral (SEBI) method with the periodic layered medium dyadic Green's function. The periodic layered medium dyadic Green's function is formulated under matrix representation. The surface integral equations (SIEs) are then implemented as the radiation boundary condition to truncate the top and bottom computation domain. After describing the interior computation domain with the vector wave equations, and treating the lateral boundaries with Bloch periodic boundary conditions, the whole computation domains are discretized with mixed-order Gauss- Lobatto-Legendre basis functions in the SEBI method. This method avoids the discretization of the top and bottom layered media, so it can be much more efficient than conventional methods. Numerical results validate the proposed solver with fast convergence throughout the whole computation domain and good performance for typical multiscale nano-optical applications. PMID- 29041367 TI - Swinging multi-source industrial CT systems for aperiodic dynamic imaging. AB - The goal of this paper is to develop a new architecture for industrial computed tomography (ICT) aiming at dynamically imaging an aperiodic changing object. We propose a data acquisition approach with multiple x-ray source/detector pairs targeting a continuously changeable object with corresponding timeframes. In this named swinging multi-source CT (SMCT) structure, each source and its associated detector swing forth and back within a certain angle for CT scanning. In the SMCT system design, we utilize a circular journal bearing based setup to replace the normal CT slip ring by weakening the scanning speed requirement. Inspired by the prior image constrained compressed sensing (PICCS) algorithm, we apply a modified PICCS algorithm for the SMCT (SM-PICCS). Our numerical simulation and realistic specimen experiment studies demonstrate the feasibility of the proposed approach. PMID- 29041368 TI - Laser-writing of ring-shaped waveguides in BGO crystal for telecommunication band. AB - We report on the fabrication of ring-shaped waveguides operating at the telecommunication band in a cubic Bi4Ge3O12 (BGO) crystal by using technique of femtosecond laser writing. In the regions of laser written tracks in BGO crystal, positive refractive index is induced, resulting in so-called Type I configuration. The modal profiles are within the designed track cladding with ring-shaped geometries, which are analogous to circular optical lattices. The homogenous guidance along both TE and TM polarizations has been obtained at telecommunication wavelength of 1.55 MUm. Both straight and S-curved waveguiding structures have been produced with ring-shaped configurations. This work paves the way to fabricate complex photonic networks for telecommunications by using ring-shaped waveguides in compact chips. PMID- 29041369 TI - On the potential of solid state LED strips utilizing an organic color converter for non-line of sight visible light communication. AB - LED strip lighting can provide high quality uniform shadow-free diffuse lighting at low cost as numerous emission sources are controlled by a single transformer. Organic LEDs offer the additional advantages of UV free emission and, for visible light communication, picosecond fluorescent lifetimes allowing the whole visible spectrum to be used without filters. Using parameters determined experimentally for solid-state LED strip lighting and fluorescent lifetimes typical of organic phosphors as the input for a Monte Carlo based ray-tracing simulation, we evaluate the potential bandwidths obtainable for indoor communication. Our work suggests that raw data transfer rates of 4 to 10 Mbps are obtainable in a standard 5m by 5m by 3m room compatible with Internet of Things (IoT) applications. PMID- 29041370 TI - Experimental demonstrations of 30Gb/s/lambda digital orthogonal filtering multiplexed multiple channel transmissions over IMDD PON systems utilizing 10G class optical devices. AB - By utilizing digital orthogonal filtering (DOF) in the digital domain, we report, for the first time, experimental demonstrations of aggregated 30.078Gb/s/lambda transmissions of DOF-multiplexed spectrally-overlapped and/or frequency gapless six channels over IMDD PON systems incorporating off-the-shelf and low-cost 10G class optical devices. Experimental results show that simple adaptive channel power loading implemented in the digital domain enables very similar transmission performances of individual channels regardless of their locations in the digital filter space. As a direct result of the interplay between the transmission system associated negative chromatic dispersion and the intensity modulation-induced frequency chirp, negative power penalties of >0.2dB are experimentally observed for all the involved channels under various transmission system configurations. In addition, excellent performance robustness of the demonstrated systems is also obtainable for various transmission distances up to 45km. PMID- 29041371 TI - Dependence of measured audio-band squeezing level on local oscillator intensity noise. AB - We investigate the dependence of the measured squeezing level on the local oscillator (LO) intensity noise. The theoretical results indicate that it produces a large measurement error with the increase of the LO intensity noise, but the measurement error has immunity to the product P of the common mode rejection ratio (CMRR) with the LO intensity noise. According to the investigation results and the LO intensity noise, we employ a detector with the CMRR of 67 dB to detect the quantum noise at audio frequencies, the product P of the CMRR with the LO intensity noise is 20 dB below the shot noise limit (SNL), which can induce the measurement error of 0.1 dB for 10 dB of squeezing. Finally, the squeezing level measured at 15.2 kHz is 9.9 +/- 0.2 dB. The influence of the intensity noise of the LO, and the electronic noise of the detector is subtracted, the inferred squeezing level is approximately 10.2 +/- 0.2 dB. It is extremely important to quantify the requirements of the CMRR of the detector for measuring the squeezing at audio frequency and inferring the real squeezing level. PMID- 29041372 TI - Subwavelength imaging by a nonlinear negative refraction lens through four wave mixing. AB - We propose a new approach for subwavelength imaging using a nonlinear negative refraction lens based on four wave mixing process. Here a thin metal film is implemented as the nonlinear negative refraction lens to bend the incident signal waves to negatively refracted FWM ones according to the partial phase matching along its surface. The imaging process can be described by the nonlinear optical transfer function over the entire spatial spectra including the evanescent ones. Analytical calculations and numerical simulations are performed to demonstrate the capability of such imaging. Compared with the existing techniques, our method works on non-resonant condition over a broad range of spectrum, therefore, it may open up a new avenue for super-resolution imaging applications. PMID- 29041373 TI - Dual-band unidirectional reflectionless phenomena in an ultracompact non Hermitian plasmonic waveguide system based on near-field coupling. AB - Dual-band unidirectional reflectionlessness and coherent perfect absorption (CPA) are demonstrated in a non-Hermitian plasmonic waveguide system based on near field coupling between a single resonator and the resonant modes of two resonators showing an electromagnetically induced-transparency-like (EIT-like) effect. The non-Hermitian plasmonic system consists of three metal-insulator metal (MIM) resonators coupled to a MIM plasmonic waveguide. PMID- 29041374 TI - Coherent frequency bridge between visible and telecommunications band for vortex light. AB - In quantum communications, vortex photons can encode higher-dimensional quantum states and build high-dimensional communication networks (HDCNs). The interfaces that connect different wavelengths are significant in HDCNs. We construct a coherent orbital angular momentum (OAM) frequency bridge via difference frequency conversion in a nonlinear bulk crystal for HDCNs. Using a single resonant cavity, maximum quantum conversion efficiencies from visible to infrared are 36%, 15%, and 7.8% for topological charges of 0,1, and 2, respectively. The average fidelity obtained using quantum state tomography for the down-converted infrared OAM-state of topological charge 1 is 96.51%. We also prove that the OAM is conserved in this process by measuring visible and infrared interference patterns. This coherent OAM frequency-down conversion bridge represents a basis for an interface between two high-dimensional quantum systems operating with different spectra. PMID- 29041375 TI - Automatic fringe enhancement with novel bidimensional sinusoids-assisted empirical mode decomposition. AB - Fringe-based optical measurement techniques require reliable fringe analysis methods, where empirical mode decomposition (EMD) is an outstanding one due to its ability of analyzing complex signals and the merit of being data-driven. However, two challenging issues hinder the application of EMD in practical measurement. One is the tricky mode mixing problem (MMP), making the decomposed intrinsic mode functions (IMFs) have equivocal physical meaning; the other is the automatic and accurate extraction of the sinusoidal fringe from the IMFs when unpredictable and unavoidable background and noise exist in real measurements. Accordingly, in this paper, a novel bidimensional sinusoids-assisted EMD (BSEMD) is proposed to decompose a fringe pattern into mono-component bidimensional IMFs (BIMFs), with the MMP solved; properties of the resulted BIMFs are then analyzed to recognize and enhance the useful fringe component. The decomposition and the fringe recognition are integrated and the latter provides a feedback to the former, helping to automatically stop the decomposition to make the algorithm simpler and more reliable. A series of experiments show that the proposed method is accurate, efficient and robust to various fringe patterns even with poor quality, rendering it a potential tool for practical use. PMID- 29041376 TI - In-line and cascaded DWDM transmission using a 15dB net-gain polarization insensitive fiber optical parametric amplifier. AB - We demonstrate and characterize polarization-division multiplexed (PDM) DWDM data transmission for the first time in a range of systems incorporating a net-gain polarization-insensitive fiber optical parametric amplifier (PI-FOPA) for loss compensation. The PI-FOPA comprises a modified diversity-loop architecture to achieve 15dB net-gain, and up to 2.3THz (~18nm) bandwidth. Three representative systems are characterized using a 100Gb/s PDM-QPSK signal in conjunction with emulated DWDM neighbouring channels: (a) a 4x75km in-line fiber transmission system incorporating multiple EDFAs and a single PI-FOPA (b) N cascaded PI-FOPA amplification stages in an unlevelled Nx25km recirculating loop arrangement, with no EDFAs used within the loop signal path, and (c) M cascaded PI-FOPA amplification stages as part of an Mx75.6km gain-flattened recirculating loop system with the FOPA compensating for the transmission fiber loss, and EDFA compensation for loop switching and levelling loss. For the 4x75km in-line system (a), we transmit 45x50GHz-spaced signals ('equivalent' data-rate of 4.5Tb/s) with average OSNR penalty of 1.3dB over the band at 10-3 BER. For the unlevelled 'FOPA only' 25.2km cascaded system (b), we report a maximum of eight recirculations for all 10x100GHz-spaced signals, and five recirculations for 20x50GHz-spaced signals. For the 75.6km levelled system PMID- 29041377 TI - Modulator figure of merit for short reach data links. AB - The traditional Mach-Zehnder modulator (MZM) figure of merit (FOM) has been defined as (Vpi2)/upsilon3dBe, and works effectively for LiNbO3 long haul modulators. However, for plasma dispersion based electro-optic modulators, or any modulator that has an inherent relationship between its bandwidth, required drive voltage, and optical insertion loss/gain, this FOM is inappropriate. This is particularly true for short reach links with no optical amplification. In the following, we propose a new modulator FOM (M-FOM) based on device metrics that are essential for short-reach links, such as the peak-to-peak drive voltage, modulator rise-fall time, and relative optical modulation amplitude. Link sensitivity measurements from two MZMs that have different bandwidths and optical losses are compared using our M-FOM to demonstrate its utility. Furthermore, we present a novel application protocol of our M-FOM to provide deeper insight into the relative system impact that modulator performance has on data links with no optical amplification, by taking the ratio of M-FOMs from two modulators driven with the same radio frequency drive power. PMID- 29041378 TI - AlxIn1-xAsySb1-y photodiodes with low avalanche breakdown temperature dependence. AB - We report AlxIn1-xAsySb1-y PIN and Separate Absorption, Charge and Multiplication (SACM) avalanche photodiodes (APDs) with high temperature stability. This work is based on measurements of avalanche breakdown voltage of these devices for temperatures between 223 K and 363 K. Breakdown voltage temperature coefficients are shown to be lower than those of APDs fabricated with other materials with comparable multiplication layer thicknesses. PMID- 29041379 TI - Surface deformation recovery algorithm for reflector antennas based on geometric optics. AB - Surface deformations of large reflector antennas highly depend on elevation angle. This paper adopted a scheme with the ability to conduct measurement at any elevation angle: carrying an emission source, an unmanned aerial vehicle (UAV) scans the antenna on a near-field plane, meanwhile the antenna stays stationary. Near-field amplitude is measured in the scheme. To recover the deformation from the measured amplitude, this paper proposed a novel algorithm by deriving the deformation-amplitude equation, which reveals the relation between the surface deformation and the near-field amplitude. By the algorithm, a precise deformation recovery can be reached at a low frequency (<1GHz) through single near-field amplitude. Simulation results showed the high accuracy and adaptability of the algorithm. PMID- 29041380 TI - Efficient demodulation scheme for rolling-shutter-patterning of CMOS image sensor based visible light communications. AB - Recently even the low-end mobile-phones are equipped with a high-resolution complementary-metal-oxide-semiconductor (CMOS) image sensor. This motivates using a CMOS image sensor for visible light communication (VLC). Here we propose and demonstrate an efficient demodulation scheme to synchronize and demodulate the rolling shutter pattern in image sensor based VLC. The implementation algorithm is discussed. The bit-error-rate (BER) performance and processing latency are evaluated and compared with other thresholding schemes. PMID- 29041381 TI - White-light quantitative phase imaging unit: erratum. AB - We found an error in Fig. 1 of our article "White-light Quantitative Phase Imaging Unit." Here we publish the revised figure. PMID- 29041382 TI - Fourier factorization in the constitutive relations for modeling diffraction gratings with continuous permittivity profiles. AB - The validity of the Fourier factorization (FF) rules used in the constitutive relations in the Fourier modal method is analyzed for one-dimensional diffraction gratings made as a thin film with uniform thickness and several examples of continuous lateral profiles of permittivity. The comparison of the method using the correct FF rules with other FF choices demonstrates the validity of the FF rules for any inhomogeneous, not only discontinuous profile. PMID- 29041383 TI - Causality and information transfer in simultaneously slow- and fast-light media. AB - We demonstrate the simultaneous propagation of slow- and fast-light optical pulses in a four-wave mixing scheme using warm potassium vapor. We show that when the system is tuned such that the input probe pulses exhibit slow-light group velocities and the generated pulses propagate with negative group velocities, the information velocity in the medium is nonetheless constrained to propagate at, or less than, c. These results demonstrate that the transfer and copying of information on optical pulses to those with negative group velocities obeys information causality, in a manner that is reminiscent of a classical version of the no-cloning theorem. Additionally, these results support the fundamental concept that points of non-analyticity on optical pulses correspond to carriers of new information. PMID- 29041384 TI - Loss of phase and universality of stochastic interactions between laser beams. AB - Traditionally, interactions between laser beams or filaments were considered to be deterministic. We show, however, that in most physical settings, these interactions ultimately become stochastic. Specifically, we show that in the nonlinear propagation of laser beams, the shot-to-shot variation of the nonlinear phase shift increases with distance, and ultimately becomes uniformly distributed in [0, 2pi]. Therefore, if two beams travel a sufficiently long distance before interacting, it is not possible to predict whether they would intersect in- or out-of-phase. Hence, if the underlying propagation model is non-integrable, deterministic predictions and control of the outcome of the interaction become impossible. Because the relative phase between the two beams becomes uniformly distributed in [0, 2pi], however, the statistics of these stochastic interactions are universal and fully predictable. These statistics can be efficiently computed using a novel universal model for stochastic interactions, even when the noise distribution is unknown. PMID- 29041385 TI - Mode suppression of 53 dB and pulse repetition rates of 2.87 and 36.4 GHz in a compact, mode-locked fiber laser comprising coupled Fabry-Perot cavities of low finesse (F = 2). AB - Multiplication of the pulse repetition frequency (PRF) of a compact, mode-locked fiber laser by a factor as large as 25 has been achieved with two coupled Fabry Perot (FP) resonators of low finesse (F = 2). Reducing the FP finesse by at least two orders of magnitude, relative to previous pulse frequency multiplication architectures, has the effect of stabilizing the oscillator with respect to pulse to-pulse amplitude, dropped pulses, and other effects of cavity detuning. Coupling two Fabry-Perot cavities, each encompassing a 3.3-3.6 cm length of fiber, in a hybrid geometry resembling that of the coupled-cavity laser interferometer has yielded side mode suppressions >= 50 dB while simultaneously doubling the laser PRF to 2.87 GHz. Pulses approximately 3.9 ps in duration (FWHM) are emitted at intervals of 27.5 ps, and in groups (bursts) of pulses separated by 350 ps. Thus, the PRF within the pulse bursts is 36 GHz, a factor of 25 greater than the free spectral range for a conventional mode-locked cavity having a length of 6.9 cm. Experimental data are in accord with simulations of the phase coherence and temporal behavior of the mode-locked pulses. PMID- 29041386 TI - Localized terahertz electromagnetically-induced transparency-like phenomenon in a conductively coupled trimer metamolecule. AB - We experimentally investigate the terahertz (THz) electromagnetically-induced transparency (EIT)-like phenomenon in a metamolecule (MM) of three-body system. This system involves a couple of geometrically identical split-ring resonators (SRRs) in orthogonal layout conductively coupled by a cut-wire resonator. Such a three-body system exhibits two frequency response properties upon to the polarization of incident THz beam: One is the dark-bright-bright layout to the horizontally polarized THz beam, where there is no EIT-like effect; the other is bright-dark-dark layout to the vertically polarized THz beam, where an EIT-like effect is observable. The transparency window can be tuned from 0.71 THz to 0.74 THz by the displacement of cut-wire inside the trimer MM. A maximum of 7.5 ps group delay of THz wave is found at the transparent window of 0.74 THz. When the cut-wire moved to the mid-point of lateral-side of SRR, the EIT-like phenomenon disappears, this leads to a localized THz slow-light effect. The distribution of surface currents and electric energy reveals that the excited inductive capacitive (LC) oscillation of bright-SRR dominates the high frequency side-mode, which is isolated to the displacement of cut-wire resonator. However, the low frequency side-mode originates from the constructive hybridization of LC resonance in dark-SRR coupled with a localized S-shaped dipole oscillator, which is tunable by the displacement of cut-wire. As a consequence, the group delay as well as the spectral configuration of transparency window can be manipulated by tuning one side-mode while fixing the other. Such an experimental finding reveal the EIT-like effect in a conductively coupled three-body system and manifests a novel approach to achieve tunable THz slow-light device. PMID- 29041387 TI - Adaptive threshold decision for on-off keying transmission systems in atmospheric turbulence. AB - This paper investigates an adaptive threshold decision (ATD) scheme without the knowledge of channel state information (CSI) for optical wireless communication (OWC). Based on the low-pass characteristic of atmospheric turbulence channels, a low-pass filter is designed for the received signals, and the filtered signal can be employed as decision threshold. Theoretical analyses show that performance of ATD is very close to that with perfect CSI. Monte Carlo simulations demonstrate that the proposed scheme shows only 0.0221dB signal-to-noise (SNR) loss at most with Rytov variance of 0.05 and SNR of 21dB. An indoor experiment results are presented, which match well with that of theoretical prediction. The scheme is simple and without CSI, hence the efficient scheme makes the real-time implementation of high-speed transmissions for OWC based on ATD feasible. PMID- 29041388 TI - Optomechanical properties of GaAs/AlAs micropillar resonators operating in the 18 GHz range. AB - Recent experiments demonstrated that GaAs/AlAs based micropillar cavities are promising systems for quantum optomechanics, allowing the simultaneous three dimensional confinement of near-infrared photons and acoustic phonons in the 18 100 GHz range. Here, we investigate through numerical simulations the optomechanical properties of this new platform. We evidence how the Poisson's ratio and semiconductor/vacuum boundary conditions lead to very distinct features in the mechanical and optical three-dimensional confinement. We find a strong dependence of the mechanical quality factor and strain distribution on the micropillar radius, in great contrast to what is predicted and observed in the optical domain. The derived optomechanical coupling constants g0 reach ultra large values in the 106 rad/s range. PMID- 29041389 TI - Improved TKM-TR methods for PAPR reduction of DCO-OFDM visible light communications. AB - The dc-biased optical orthogonal frequency division multiplexing (DCO-OFDM) system is experimentally demonstrated as an appealing candidate in future visible light communication (VLC) system. However, the intrinsic high PAPR drawback that the DCO-OFDM system suffers from still needs to be addressed and few effective approach has been found so far. To deal with this problem, in this paper, the tone reservation (TR) technique based the time domain kernel matrix (TKM-TR) schemes for reducing the PAPR are studied and applied to DCO-OFDM system. Aiming at the drawback of its severe tailing in previous TKM-TR schemes, first an improved TKM-TR scheme is proposed, in which the peak regrowth caused by severe tailing is eliminated by optimizing the scaling factors. In addition, considering the clipping ratio (CR) value in TKM-TR scheme is greatly related to the PAPR reduction performance, an extensively used heuristic global optimization algorithm, the particle swarm optimization (PSO) method is employed in TKM-TR to obtain a better CR for more PAPR reduction. Simulation results show that the improved TKM-TR scheme can efficiently address the tailing problem in previous TKM-TR schemes and achieve better PAPR reduction. Moreover, due to the powerful searching ability, PSO based TKM-TR scheme achieves more PAPR reduction and lower bit error rate (BER). PMID- 29041390 TI - Self-gated mid-infrared short pulse upconversion detection for gas sensing. AB - Pulsed nonlinear-optical upconversion is used for mid-infrared signal detection. A setup for both mid-infrared generation and upconversion based on a single pump laser enables sensitive light detection and is utilized for gas spectroscopy. With the demonstrated pulsed setup, quantum efficiencies above 80 % for the upconversion of a Gaussian beam signal and 25 % for the upconversion of backscattered radiation are achieved and in agreement with theoretical predictions. Combined with efficient background suppression due to spectral and temporal gating, this results in highly sensitive detection of the infrared signals. As a demonstration of application, the presented system is used for methane sensing in an open path geometry, highlighting the potential for stand off leak detection with a concentration resolution better than 1.5 ppm.m. PMID- 29041391 TI - Ion-sensitive photonic-crystal nanolaser sensors. AB - In general, biochemical sensors based on photonic cavities are used to detect changes in the refractive index of the environment. In this study, however, a GaInAsP semiconductor photonic-crystal nanolaser sensor that we recently developed was found to detect not only the environmental refractive index but also the surface charge. In contrast to the pH sensitivity we reported previously, this is an ultra-sensitive detection mechanism capable of identifying proteins and deoxyribonucleic acids (DNA) at a femtomolar-order or lower concentrations. When the device is exposed to plasma or DNA solutions, the laser wavelength simultaneously changes with the zeta potential and the flat-band potential of the semiconductor surface. This indicates that the charged functional groups on the surface, which are formed by these treatments, modify the Schottky barrier near the semiconductor surface, trap the excited carriers in the barrier, and change the refractive index of the semiconductor via the carrier effects. These findings also suggest that some other photonic sensors may also exhibit similar electrochemical and optoelectronic effects. PMID- 29041392 TI - Micro-hyperboloid lensed fibers for efficient coupling from laser chips. AB - A novel technique is presented for producing micro-hyperboloid lensed fibers for efficient coupling to semiconductor laser chips. A three-step process including a precision mechanical grinding, a spin-on-glass (SOG) coating and an electrostatic pulling process is used to form the hyperboloid lens structure on a flat-end single mold fiber (SMF) with the core diameter of 6.6 MUm. Micro-hyperboloid lensed fibers with tunable radii of curvature around 4.18 - 4.83 MUm can be formed on the SMF end face. A high average coupling efficiency around 80% and low coupling variation of 0.116 +/- 0.044% are obtained for the produced fibers. The developed method is efficient to produce micro-hyperboloid lensed fibers for high performance light coupling between the SMF and the semiconductor diode lasers. PMID- 29041393 TI - Half-sized cylindrical invisibility cloaks using double near zero slabs with realistic material size and properties. AB - A method is introduced to miniaturize invisibility cloaks by 50% using wave tailoring and finite/non-zero wave impedance of double near zero (DNZ) slabs. Unlike previous works, which use thick dielectric matching layers to miniaturize internal cloaks, the proposed technique is applied to both internal and external cylindrical cloaks using a thin and short DNZ slab to change cloaks' shapes to half-cylinder shells. Moreover, sets of structures are introduced for the half sized cloaks to enable using feasible-to-fabricate structures with the help of a rigorous theoretical analysis, which is validated via full-wave simulations. All of the presented results show that the proposed half cloaks can function perfectly well. The sensitivity of half-sized cloaks to the length and material properties of the DNZ slab is investigated to find the shortest length and the highest values of the permittivity and permeability for the slab to have small yet realizable structures. The analysis shows that slabs with length as small as the diameter of the cloaks and constitutive parameters (permittivity and permeability) as high asepsilonslab=MUslab=0.1-0.1iand epsilonslab=MUslab=0.05 0.04i for half-sized external cloaks and half-sized internal cloaks, respectively, can still considerably reduce the scattered fields. The effect of the loss and incident angle of the field on the performance of the miniaturized cloaks are also analyzed. PMID- 29041394 TI - Cavity-based aluminum nanohole arrays with tunable infrared resonances. AB - This work details the successful computational design, fabrication, and characterization of a cavity-based aluminum nanohole array. The designs incorporate arrays of aluminum nanoholes that are patterned on a dielectric coated (SiO2 or ZnSe) aluminum base mirror plane. This architecture provided a means of exploring the coupling of the localized resonances, exhibited by the aluminum nanohole array, with the cavity resonance that is generated within the dielectric spacer layer, which resides between the base plane mirror and the nanohole array. Rigorous coupled wave analysis (RCWA) was first used to computationally design the structures. Next, a range of lithographic techniques, including photolithography, E-beam lithography, and nanosphere lithography, were used to fabricate the structures. Finally, infrared spectroscopy and scanning electron microscopy (SEM) were used to characterize the spectral and structural properties of the multilayered devices, respectively. The overall goal of this study was to demonstrate our ability to design and fabricate aluminum-based structures with tunable resonances throughout the infrared region, i.e. from the short-wave through longwave infrared regions of the electromagnetic spectrum (1.5 -12 um). PMID- 29041395 TI - Compact and stable real-time dual-wavelength digital holographic microscopy with a long-working distance objective. AB - We propose a compact dual wavelength digital holographic Microscopy (DHM) based on a long working distance objective, which enabling quantitative phase imaging of opaque samples with extended measurement range in one shot. The compactness of the configuration is achieved by constructing a miniature modified Michelson interferometer between the objective and the sample, and as a result it provides higher temporal stability than conventional dual wavelength DHM. In the setup, the propagation directions of two reference beams of different wavelengths can be independently adjusted, and thus two off axis interferograms having orthogonal fringe directions can be simultaneously captured through a monochrome CCD camera. The unambiguous vertical measurement range in optical path length is extended to 8.338 MUm, the length of a synthetic wavelength, by selecting two wavelengths with a gap of 52 nm. The capability of the proposed setup is demonstrated with measurements of a standard 1.8 MUm height step as well as a moving micro staircase structure. PMID- 29041396 TI - Fiber-optic anemometer based on single-walled carbon nanotube coated tilted fiber Bragg grating. AB - In this work, a novel and simple optical fiber hot-wire anemometer based on single-walled carbon nanotubes (SWCNTs) coated tilted fiber Bragg grating (TFBG) is proposed and demonstrated. For the hot-wire wind speed sensor design, TFBG is an ideal in-fiber sensing structure due to its unique features. It is utilized as both light coupling and temperature sensing element without using any geometry modified or uncommon fiber, which simplifies the sensor structure. To further enhance the thermal conversion capability, SWCNTs are coated on the surface of the TFBG instead of traditional metallic materials, which have excellent thermal characteristics. When a laser light is pumped into the sensor, the pump light propagating in the core will be easily coupled into cladding of the fiber via the TFBG and strongly absorbed by the SWCNTs thin film. This absorption acts like a hot-wire raising the local temperature of the fiber, which is accurately detected by the TFBG resonance shift. In the experiments, the sensor's performances were investigated and controlled by adjusting the inherent angle of the TFBG, the thickness of SWCNTs film, and the input power of the pump laser. It was demonstrated that the developed anemometer exhibited significant light absorption efficiency up to 93%, and the maximum temperature of the local area on the fiber was heated up to 146.1 degrees C under the relatively low pump power of 97.76 mW. The sensitivity of -0.3667 nm/(m/s) at wind speed of 1.0 m/s was measured with the selected 12 degrees TFBG and 1.6 MUm film. PMID- 29041397 TI - On-chip second-harmonic generation and broadband parametric down-conversion in a lithium niobate microresonator. AB - Nonlinear wavelength conversion is essential for many classical and quantum pho tonic applications. The underlying second-order nonlinear optical processes, however, generally exhibit limited spectral bandwidths that impact their application potential. Here we use a high-Q X-cut lithium niobate microdisk resonator to demonstrate both second-harmonic generation and spontaneous parametric down-conversion on chip. In particular, our lithium niobate microresonator, with its wide-range cyclic phase matching and rich optical mode structures, is able to achieve ultra-broadband spontaneous parametric down conversion, with a bandwidth over 400 nm, inferred from recorded spectra of the down-converted photons. The produced biphoton pairs exhibit strong temporal correlation, with a coincidence-to-accidental ratio measured to be 43.1. Our device is promising for integrated quantum photonics where optical frequency could be used as a degree of freedom for signal processing. PMID- 29041398 TI - Simultaneous multi-piston measurement method in segmented telescopes. AB - We propose a method to simultaneously detect the multi-piston between segments. The relation between the piston of any two segments and amplitude of the modulation transfer function (MTF) sidelobes (MTFnph) is derived. The piston can be retrieved by this relation after measuring the MTFnph. This method's capture range is the operating light's coherence length, the accuracy is 0.026lambda (lambda = 633 nm) RMS. The MTF model of a mask with sparse multi-subaperture configuration is established. The arrangement rules, to avoid the sidelobes overlapping, are obtained. The mask with a sparse 18 sub-aperture configuration is designed, which makes the MTF sidelobes distribution non-redundant. PMID- 29041399 TI - Dynamic fiber delivery of 3 W 160 fs pulses with photonic crystal hollow core fiber patchcord. AB - We report output characteristics of a connectorized hollow core photonics crystal fiber when it is subjected to coiling down to a 50 mm radius, bending, and torsion. We achieved coupling efficiency up to 73% with an output average power of 2 W and 24 nJ pulse energy. With optimized coupling, depolarization was as low as 7%. Coiling and bending of the photonic crystal patchcord introduces little distortion; torsion, however, changes the polarization drastically. To our knowledge, this is the first report on dynamic fiber delivery of fs pulses. PMID- 29041400 TI - High efficiency geometric-phase polarization fan-out grating on silicon. AB - We report the design, fabrication and characterization of a 1-by-5 geometric phase polarization fan-out grating for coherent beam combining at 1550 nm. The phase profile of the grating is accurately controlled by the local orientation of the binary subwavelength structure instead of the etching depth and profile empowering the grating to be more tolerant to fabrication errors. Deep-UV interference lithography on silicon offers an inexpensive, highly efficient and high damage threshold solution to fabricating large-area fan-out gratings than electron beam lithography (EBL) and photoalignment liquid crystals. The theoretical and experimental diffraction efficiency of the grating is 87% and 85.7% respectively. Such a fan-out grating may find application to high-power beam combining in the infrared regime. PMID- 29041401 TI - Tailoring optical pulling force on gain coated nanoparticles with nonlocal effective medium theory. AB - We study the optical scattering force on the coated nanoparticles with gain core and nonlocal plasmonic shell in the long-wavelength limit, and demonstrate negative optical force acting on the nanoparticles near the symmetric and/or antisymmetric surface plasmon resonances. To understand the optical force behavior, we propose nonlocal effective medium theory to derive the equivalent permittivity for the coated nanoparticles with nonlocality. We show that the imaginary part of the equivalent permittivity is negative near the surface resonant wavelength, resulting in the negative optical force. The introduction of nonlocality may shift the resonant wavelength of the optical force, and strengthen the negative optical force. Two examples of Fano-like resonant scattering in such coated nanoparticles are considered, and Fano resonance induced negative optical force is found too. Our findings could have some potential applications in plasmonics, nano-optical manipulation, and optical selection. PMID- 29041402 TI - General design method of ultra-broadband perfect absorbers based on magnetic polaritons. AB - Starting from one-dimensional gratings and the theory of magnetic polaritons (MPs), we propose a general design method of ultra-broadband perfect absorbers. Based on the proposed design method, the obtained absorber can keep the spectrum average absorptance over 99% at normal incidence in a wide range of wavelengths; this work simultaneously reveals the robustness of the absorber to incident angles and polarization angles of incident light. Furthermore, this work shows that the spectral band of perfect absorption can be flexibly extended to near the infrared regime by adjusting the structure dimension. The findings of this work may facilitate the active design of ultra-broadband absorbers based on plasmonic nanostructures. PMID- 29041403 TI - Optical properties of black carbon aerosols encapsulated in a shell of sulfate: comparison of the closed cell model with a coated aggregate model. AB - At 532 nm wavelength, optical properties of black carbon (BC) particles mixed with sulfate are computed by use of two morphological models, a closed cell and a coated aggregate model. For high BC volume fractions f, both models yield comparable results. As more sulfate is added, some of the optical properties diverge. The backscattering depolarization ratio deltaL is particularly sensitive to the morphology. Comparison with field measurements suggests that the closed cell model underestimates deltaL; the coated aggregate model yields good results for intermediate and high values of f, but somewhat too high results for low f. This could be improved by taking the collapse of fractal structure with decreasing f into account. PMID- 29041404 TI - Noise characteristics of high power fiber-laser pumped femtosecond optical parametric generation. AB - We study, both numerically and experimentally, the relative intensity noise (RIN) and timing jitter characteristics of optical parametric generation (OPG) process in MgO-doped periodically poled LiNbO3 (MgO:PPLN) pumped by fiber femtosecond laser. We directly characterize the RIN, and measure timing jitter spectral density of the OPG process based on the balanced optical cross-correlator (BOC) technique for the first time as well, which are both in a fairly good agreement with numerical simulation. Both the numerical and experimental study reveals that OPG can suffer from a smaller intensity fluctuation but a lager temporal jitter when it is driven into saturation. Furthermore, we demonstrate that with a 30 mW CW diode laser injection seeding the OPG output results in superior noise performance compared to the vacuum fluctuations seeded OPG. PMID- 29041405 TI - Nanoparticle-doped electrospun fiber random lasers with spatially extended light modes. AB - Complex assemblies of light-emitting polymer nanofibers with molecular materials exhibiting optical gain can lead to important advance to amorphous photonics and to random laser science and devices. In disordered mats of nanofibers, multiple scattering and waveguiding might interplay to determine localization or spreading of optical modes as well as correlation effects. Here we study electrospun fibers embedding a lasing fluorene-carbazole-fluorene molecule and doped with titania nanoparticles, which exhibit random lasing with sub-nm spectral width and threshold of about 9 mJ cm-2 for the absorbed excitation fluence. We focus on the spatial and spectral behavior of optical modes in the disordered and non-woven networks, finding evidence for the presence of modes with very large spatial extent, up to the 100 um-scale. These findings suggest emission coupling into integrated nanofiber transmission channels as effective mechanism for enhancing spectral selectivity in random lasers and correlations of light modes in the complex and disordered material. PMID- 29041406 TI - Optical fabrication and characterisation of SU-8 disk photonic waveguide heterostructure cavities. AB - In order to demonstrate cavity quantum electrodynamics using photonic crystal (PhC) cavities fabricated around self-assembled quantum dots (QDs), reliable spectral and spatial overlap between the cavity mode and the quantum dot is required. We present a method for using photoresist to optically fabricate heterostructure cavities in a PhC waveguide with a combined photolithography and micro-photoluminescence spectroscopy system. The system can identify single QDs with a spatial precision of +/-25 nm, and we confirm the creation of high quality factor cavity modes deterministically placed with the same spatial precision. This method offers a promising route towards bright, on-chip single photon sources for quantum information applications. PMID- 29041407 TI - Active control of optical chirality with graphene-based achiral nanorings. AB - A strong chiral near-field is crucial for the detection of chiral molecules. Active tuning of the chiral near-field can shorten the detection process. In this study, a graphene-based achiral nanoring (GAN) that can actively control chiral near-fields is presented. The GAN is composed of three identical graphene pieces. The handedness and strength of the chiral near-fields can be actively controlled by adjusting the Fermi levels of these three graphene pieces. The optical chirality of the GAN near-field is 500 times that of circularly polarized light. In addition, the GAN enhances the chiral response of the chiral material by a factor of 250. This work provides opportunities for the ultrasensitive detection and location of molecules through the active control of chiral near-fields. PMID- 29041408 TI - PAPR reduction based on tone reservation scheme for DCO-OFDM indoor visible light communications. AB - High peak-to-average power ratio (PAPR) leads to out-of-band power and in-band distortion in the direct current-biased optical orthogonal frequency division multiplexing (DCO-OFDM) systems. In order to effectively reduce the PAPR with faster convergence and lower complexity, this paper proposes a tone reservation based scheme, which is the combination of the signal-to-clipping noise ratio (SCR) procedure and the least squares approximation (LSA) procedure. In the proposed scheme, the transmitter of the DCO-OFDM indoor visible light communication (VLC) system is designed to transform the PAPR reduced signal into real-valued positive OFDM signal without doubling the transmission bandwidth. Moreover, the communication distance and the light emitting diode (LED) irradiance angle are taking into consideration in the evaluation of the system bit error rate (BER). The PAPR reduction efficiency of the proposed scheme is remarkable for DCO-OFDM indoor VLC systems. PMID- 29041409 TI - High frequency optomechanical disk resonators in III-V ternary semiconductors. AB - Optomechanical systems based on nanophotonics are advancing the field of precision motion measurement, quantum control and nanomechanical sensing. In this context III-V semiconductors offer original assets like the heteroepitaxial growth of optimized metamaterials for photon/phonon interactions. GaAs has already demonstrated high performances in optomechanics but suffers from two photon absorption (TPA) at the telecom wavelength, which can limit the cooperativity. Here, we investigate TPA-free III-V semiconductor materials for optomechanics applications: GaAs lattice-matched In0.5Ga0.5P and Al0.4Ga0.6As. We report on the fabrication and optical characterization of high frequency (500-700 MHz) optomechanical disks made out of these two materials, demonstrating high optical and mechanical Q in ambient conditions. Finally we achieve operating these new devices as laser-sustained optomechanical self-oscillators, and draw a first comparative study with existing GaAs systems. PMID- 29041410 TI - Characterization of a FBG sensor interrogation system based on a mode-locked laser scheme. AB - This paper is focused on the characterization of a fiber Bragg grating (FBG) sensor interrogation system based on a fiber ring laser with a semiconductor optical amplifier as the gain medium, and an in-loop electro-optical modulator. This system operates as a switchable active (pulsed) mode-locked laser. The operation principle of the system is explained theoretically and validated experimentally. The ability of the system to interrogate an array of different FBGs in wavelength and spatial domain is demonstrated. Simultaneously, the influence of several important parameters on the performance of the interrogation technique has been investigated. Specifically, the effects of the bandwidth and the reflectivity of the FBGs, the SOA gain, and the depth of the intensity modulation have been addressed. PMID- 29041411 TI - Degenerate critical coupling in all-dielectric metasurface absorbers. AB - We develop the theory of all-dielectric absorbers based on temporal coupled mode theory (TCMT), with parameters extracted from eigenfrequency simulations. An infinite square array of cylindrical resonators embedded in air is investigated, and we find that it supports two eigenmodes of opposite symmetry that are each responsible for half of the total absorption. The even and odd eigenmodes are found to be the hybrid electric (EH111) and hybrid magnetic (HE111) waveguide modes of a dielectric wire of circular cross section, respectively. The geometry of the cylindrical array is shown to be useful for individual tuning of the radiative loss rates of the eigenmodes, thus permitting frequency degeneracy. Further, by specifying the resonators' loss tangent, the material loss rate can be made to equal the radiative loss rate, thus achieving a state of degenerate critical coupling and perfect absorption. Our results are supported by S parameter simulations, and agree well with waveguide theory. PMID- 29041412 TI - On the extraordinary optical transmission in parallel plate waveguides for non TEM modes. AB - Extraordinary transmission has been recently measured in a parallel plate waveguide (PPWG) through a metal strip with a patterned 1-D periodic array of circular holes, the metal strip being embedded inside the PPWG. Wood's anomaly and the extraordinary transmission peak (EOT) were detected for transverse electric (TE) mode excitation at frequencies higher than those found for TEM mode excitation. In this paper we provide an explanation for this frequency shift by decomposing the problem of a TE mode impinging on the 1-D array of holes into two problems of plane waves impinging obliquely on 2-D periodic arrays of holes. By then solving the integral equation for the electric field on the surface of the holes, the origin of the frequency shift is proved both mathematically and physically in terms of the symmetries present in the system. PMID- 29041413 TI - Spin Hall effect of reflected light in dielectric magneto-optical thin film with a double-negative metamaterial substrate: erratum. AB - An expression error was produced in the text introducing the dynamic matrix of the magnetic layer in [Opt. Express25(16), 19117 (2017)10.1364/OE.25.019117]. What's more, we used two wrong formula numbers in the analysis section of Eq. (11) and Eq. (13). Here we correct the errors. PMID- 29041414 TI - Pump induced lasing suppression in Yb:Er-doped microlasers. AB - A pump source is one of the essential prerequisites in order to achieve lasing in a system, and, in most cases, a stronger pump leads to higher laser power at the output. However, this behavior may be suppressed if two pump beams are used. In this work, we show that lasing around the 1600 nm band can be suppressed completely if two pumps, at wavelengths of 980 nm and 1550 nm, are applied simultaneously to an Yb:Er-doped microlaser, whereas it can be revived by switching one of them off. This phenomenon can be explained by assuming that the presence of one pump (980 nm) changes the role of the other pump (1550 nm); more specifically, the 1550 nm pump starts to consume the population inversion instead of increasing it when the 980 nm pump power exceeds a certain value. As a result, the two pump fields lead to a closed-loop transition within the gain medium (i.e., the erbium ions). This study unveils an interplay similar to coherence effects between different pump pathways, thereby providing a reference for designing the laser pump, and may have applications in lasing control. PMID- 29041415 TI - Beam hardening correction in polychromatic x-ray grating interferometry. AB - The beam hardening is one of the two causes of the fringe shift distortion in polychromatic X-ray grating interferometry. Based on the assumption of the uniform energy dependence, we developed a novel analytic approach to accurately retrieve the monochromatic attenuation function and fringe phase shift from the polychromatic measurement. This approach provides a useful tool for precise measurement of sample electron density distribution in X-ray grating interferometry. PMID- 29041416 TI - Simulation investigation of strained black phosphorus photodetector for middle infrared range. AB - In this paper, we design the uniaxially and biaxially strained black phosphorus (BP) photodetectors. Different strains applied in the zigzag or armchair direction can effectively tune the direct band gap of 5-layer of BP. The optical field intensity is modeled to determine the absorption for the BP layer. The strain effect on the band structure of BP is investigated using first-principles method based on density functional theory. The cut-off wavelength of strained 5 layer of BP pin photodetector is extended to middle infrared range with a high responsivity of 66.29 A/W, which means that the strained black phosphorus photodetector provides a new approach for the middle-infrared range optoelectronic devices. PMID- 29041417 TI - Highly birefringent V-groove liquid core fiber. AB - We report a new efficient light guidance along a liquid core using an open V groove. Guiding properties were analyzed using finite element method in terms of the single mode guidance condition, and the corresponding modal birefringence. We experimentally demonstrated a silica V-groove fiber with an opening angle of 40 degrees , which was spliced to single mode fibers at both ends. A liquid with the refractive index of 1.455 was filled to serve as a core along a maximum length of 47cm. We confirmed the single mode guidance and birefringence consistent to theory, which will enable polarimetric liquid sensing. PMID- 29041418 TI - Dual-layer orthogonal fiber Bragg grating mesh based soft sensor for 3 dimensional shape sensing. AB - A soft shape sensor for 3-dimensional object shape measurement is demonstrated. The proposed sensor is based on dual-layer fiber Bragg grating arrays with an orthogonal mesh structure, which enables multi-point bi-directional shape sensing. The 3D shape reconstruction is based on a bi-directional curvature measurement at each sensing point, which is achieved through measuring the direction and amount of wavelength shift of each off-center embedded FBG. The conversion coefficient between the wavelength shift and bending curvatures is acquired and is used to convert the change in FBG to the corresponding bending curvatures and bending direction. The measurement error on the bending radius of each sensing point is about 2.7%. A 3D shape of the object surface is reconstructed with the help of a curve fitting method based on the curvature information across the whole FBG mesh. This design successfully achieved visualized 3D shape sensing, which has great practical value in soft robotics and biomedical applications. PMID- 29041419 TI - Resolution enhancement method for lensless in-line holographic microscope with spatially-extended light source. AB - We propose a resolution enhancement method for lensless in-line holographic microscope (LIHM) with spatially-extended light source, where the resolution is normally deteriorated by the insufficient spatial coherence of the illumination. In our LIHM setup, a light-emitting diode (LED), which was a spatially-extended light source, directly illuminated the sample, and the in-line hologram were recorded by a CMOS imaging sensor located behind the sample. In our holographic reconstruction process, the in-line hologram was first deconvoled with a properly resized image of the LED illumination area, and then back-propagated with scalar diffraction formula to reconstruct the sample image. We studied the hologram forming process and showed that the additional deconvolution process besides normal scalar diffraction reconstruction in LIHM can effectively enhance the imaging resolution. The resolution enhancements capability was calibrated by numerical simulations and imaging experiments with the U.S. air force target as the sample. We also used our LIHM to image the wing of a green lacewing to further demonstrate the capability of our methods for practical imaging applications. Our methods provide a way for LIHM to achieve satisfactory resolution with less stringent requirement for spatial coherence of the source and could reduce the cost for compact imaging system. PMID- 29041420 TI - Dynamics of carrier tunneling and recombination in asymmetric coupled InGaN multiple quantum wells. AB - In this work, dynamics of carrier tunneling and recombination in InGaN-based asymmetric coupled multiple quantum wells (AC-MQWs) are systematically studied by excitation power-dependent and temperature-dependent photoluminescence (PL) measurements. With different pumping wavelengths of 405 and 325 nm, distinctly different PL spectral evolutions are observed, which could be well explained by the proposed anomalous carrier "reverse tunneling" based on the forbidden 1h->2e transitions in the AC-MQWs. The forbidden transitions are identified through the well agreement between the measured photo-modulated reflectance (PR) spectrum and the calculated interband transition energies. Our results indicate that, by ingeniously designing the MQW structure of the InGaN-based optoelectronic devices, it is possible to realize a specific interband optical transition which is even not allowed by the selection rule, and thereby effectively improve the carrier distribution across the QWs through the conventional and/or anomalous "reverse" carrier tunneling. PMID- 29041421 TI - Dynamic three-dimensional multifocal spots in high numerical-aperture objectives. AB - Multifocal spots in high numerical-aperture (NA) objectives has emerged as a rapid, parallel, and multi-location method in a multitude of applications. However, the typical method used for forming three-dimensional (3D) multifocal spots based on iterative algorithms limits the potential applications. We demonstrate a non-iterative method using annular subzone phases (ASPs) that are composed of many annular subareas in which phase-only distributions with different 3D displacements are filled. The dynamic 3D multifocal spots with controllable position of each focal spot in the focal volume of the objective are created using the ASPs. The experimental results of such dynamic tunable 3D multifocal spots offer the possibility of versatile process in laser 3D fabrication, optical trapping, and fast focusing scanned microscopic imaging. PMID- 29041422 TI - Polyelectrolyte induced controlled assemblies for the backbone of robust and brilliant Raman tags. AB - Near-field and far-field optical properties of plasmonic materials can be tailored by coupling the existing structures. However, fabricating 3D coupled structures in the solution by molecular linkers may suffer from low yield, low stability (particle aggregates), long reaction time, complex surface modification or multiple purification steps. In this report, stable 3D plasmonic core satellite assemblies (CSA) with a ~1 nm interior gap accompanied by high field enhancement (|E/Einc|>200) are formed in a few seconds through a single polyelectrolyte linker layer. In addition, by covalently binding different reporter molecules and core particles, three distinct RamSSan tags based on this CSA backbone are demonstrated and compared with conventional fluorophores in terms of stability. This general assembly method can be applied to any type of colloidal particles carrying stable surface charge, even non-plasmonic nanoparticles. It will facilitate the development of various robust Raman tags for multiplexed biomedical imaging/sensing by efficiently combining constituent particles of differing size/shape/composition. The CSA backbone with an embedded high field not only makes the brightness of Raman tags more comparable to the fluorophores and can also be utilized in the platform of molecule-light quantum strong coupling. PMID- 29041423 TI - Efficient tensor approach for simulating paraxial propagation of arbitrary partially coherent beams. AB - Complicated partially coherent beams (PCBs) are useful in many applications, such as free-space optical communications, particle trapping and optical imaging, while usually it is hard to derive analytical propagation formulae for such beams, and one has to fall back on numerical methods. The conventional numerical methods have some intrinsic drawbacks. In this paper, we introduce an efficient tensor approach (ETA) for simulating paraxial propagation of arbitrary PCBs. The ETA is a direct reconstruction of the propagated PCB without aliasing and rippling problems, and the algorithm is simple and robust with a tensor/matrix multiplication as the main calculation. The validity of ETA is verified through comparing simulation results with analytical results, numerical integration results and experimental results, respectively. The ETA provides a fast and reliable way for simulating paraxial propagation of arbitrary PCBs. PMID- 29041424 TI - Experimental comparison of pulse-amplitude and spatial modulations for vehicle-to vehicle visible light communication in platoon configurations. AB - Visible light communication (VLC) is an attractive complementary communication technology for vehicular applications such as platooning. Although data rates around 100 kbps are enough for crucial data transmission, it may be useful to reach a few megabits per second for other applications like networking. Such data rates can be reached by using appropriate modulations and clock rates. In this paper, three forms of pulse amplitude modulations (PAM) are compared in a vehicular context: on-off keying (OOK), PAM-4 and generalized space-shift keying (GSSK). A prototype based on off-the-shelf light-emitting diodes (LED) headlamps is used for static tests in straight line configuration, with an inter-vehicle distance up to 30 m, and curves of minimum radius 100 m and inter-vehicle distance of 10 m. These tests show that OOK and GSSK are the most interesting modulations for highway platooning applications. OOK provides indeed a good mobility while remaining simple to implement. A 1 Mbps link of BER below 10-6 is thus demonstrated. In GSSK, the data rate reaches 2 Mbps for an equivalent BER. These performances are obtained by using, in particular, two spatially distinct receivers, which limits strongly the complexity of GSSK decoding. PMID- 29041425 TI - Full-spectrum light management by pseudo-disordered moth-eye structures for thin film solar cells: erratum. AB - This erratum is presented to correct Fig. 11 in [Opt. Express25(16), A824 (2017)]. PMID- 29041426 TI - Spectroscopic characteristics, continuous-wave and mode-locking laser performances of Tm,Y:CaF2 disordered crystal. AB - The spectroscopic characteristics, continuous-wave (CW) and mode-locking laser performances of Tm,Y:CaF2 disordered crystal were studied. A maximum CW output power of 586 mW was obtained with a slope efficiency of 26%. The Tm,Y:CaF2 mode locked laser could operate in two states: single-wavelength mode locking or dual wavelength synchronous mode locking. The single-wavelength mode-locked laser generated pulses with pulse duration of 22 ps, repetition rate of 99 MHz, and pulse energy of 1.15 nJ at 1887 nm. Alternatively, the laser could also be mode locked simultaneously at 1880.7 nm and 1889.0 nm wavelengths. The beating modulation in autocorrelation trace shows that the dual-wavelength pulses were temporally synchronous. PMID- 29041427 TI - Programmable dispersion on a photonic integrated circuit for classical and quantum applications. AB - We demonstrate a large-scale tunable-coupling ring resonator array, suitable for high-dimensional classical and quantum transforms, in a CMOS-compatible silicon photonics platform. The device consists of a waveguide coupled to 15 ring-based dispersive elements with programmable linewidths and resonance frequencies. The ability to control both quality factor and frequency of each ring provides an unprecedented 30 degrees of freedom in dispersion control on a single spatial channel. This programmable dispersion control system has a range of applications, including mode-locked lasers, quantum key distribution, and photon-pair generation. We also propose a novel application enabled by this circuit - high speed quantum communications using temporal-mode-based quantum data locking - and discuss the utility of the system for performing the high-dimensional unitary optical transformations necessary for a quantum data locking demonstration. PMID- 29041428 TI - Enhanced direct-gap light emission from Si-capped n+-Ge epitaxial layers on Si after post-growth rapid cyclic annealing: impact of non-radiative interface recombination toward Ge/Si double heterostructure lasers. AB - Enhanced direct-gap light emission is reported for Si-capped n+-Ge layers on Si after post-growth rapid cyclic annealing (RCA), and impact of non-radiative recombination (NRR) at the Ge/Si interface is discussed toward Ge/Si double heterostructure (DH) lasers. P-doped n+-Ge layer (1 * 1019 cm-3, 400 nm) is grown on Si by ultra-high vacuum chemical vapor deposition, followed by a growth of Si capping layer (5 nm) to form a Si/Ge/Si DH structure. Post-growth RCA to eliminate defects in Ge is performed in N2 at temperatures between 900 degrees C and 780 degrees C, where the annealing time is minimized to be 5 s in each RCA cycle to prevent an out-diffusion of P dopants from the Ge surface. Direct-gap photoluminescence (PL) intensity at 1.6 um increases with the RCA cycles up to 40, although the threading dislocation density in Ge is not reduced after 3 cycles in the present condition. The PL enhancement is ascribed to the suppression of NRR at the Ge/Si interface, where an intermixed SiGe alloy is formed. For Ge/Si DH lasers, NRR at the Ge/Si interface is found to have a significant impact on the threshold current density Jth. In order to achieve Jth on the order of 1 kA/cm2, similar to III-V lasers, the interface recombination velocity S is required below 103 cm/s in spite of S as large as 105 cm/s at the ordinary defect-rich Ge/Si interface. PMID- 29041429 TI - Improved measurement of two-mode quantum correlations using a phase-sensitive amplifier. AB - We demonstrate the ability of a phase-sensitive amplifier (PSA) to pre-amplify a selected quadrature of one mode of a two-mode squeezed state in order to improve the measurement of two-mode quantum correlations that exist before degradation due to optical and detection losses. We use four-wave mixing (4WM) in 85Rb vapor to generate bright beams in a two-mode squeezed state. One of these two modes then passes through a second 4WM interaction in a PSA configuration to noiselessly pre-amplify the desired quadrature of the mode before loss is intentionally introduced. We demonstrate an enhancement in the measured degree of intensity correlation and intensity-difference squeezing between the two modes. PMID- 29041430 TI - Femtosecond-level timing fluctuation suppression in atmospheric frequency transfer with passive phase conjunction correction. AB - We demonstrate femtosecond-level timing fluctuation suppression in indoor atmospheric comb-based frequency transfer with a passive phase conjunction correction technique. Timing fluctuations and Allan deviations are both measured to characterize the excess frequency instability incurred during the frequency transfer process. By transferring a 2 GHz microwave over a 52-m long free-space link in 5000 s, the total root-mean-square (RMS) timing fluctuation was measured to be about 280 fs with a fractional frequency instability on the order of 3 * 10 13 at 1 s and 6 * 10-17 at 1000 s. This atmospheric comb-based frequency transfer with passive phase conjunction correction can be used to build an atomic clock based free-space frequency transmission link because its instability is less than that of a commercial Cs or H-master clock. PMID- 29041431 TI - Depth resolved snapshot energy-dispersive X-ray diffraction using a conical shell beam. AB - We demonstrate a novel imaging architecture to collect range encoded diffraction patterns from overlapping samples in a single conical shell projection. The patterns were measured in the dark area encompassed by the beam via a centrally positioned aperture optically coupled to a pixelated energy-resolving detector. We show that a single exposure measurement of 0.3 mAs enables d-spacing values to be calculated. The axial positions of the samples were not required and the resultant measurements were robust in the presence of crystallographic textures. Our results demonstrate rapid volumetric materials characterization and the potential for a direct imaging method, which is of great relevance to applications in medicine, non-destructive testing and security screening. PMID- 29041432 TI - Self-focusing effect of annular beams propagating in the atmosphere. AB - The self-focusing effect of annular beams propagating in the atmosphere to assist delivering powerful laser beams from orbit to the ground is studied in detail. It is found the annular beam is compressed more strongly due to the self-focusing effect as the beam obscure ratio increases. On the other hand, the self-focusing effect between annular, flat-topped and Gaussian beams is compared. It is shown that the self-focusing effect on the annular beam is stronger than that on flat topped and Gaussian beams. However, the threshold critical power values of annular, flat-topped and Gaussian beams should be in sequence from small to large. Furthermore, the expression of the B integral of annular beams propagating from orbit to the ground in the atmosphere is derived, and the fitting equation related to the B integral of annular beams for maximal compression without filamentation is presented. PMID- 29041433 TI - Second harmonic generation enhancement from a nonlinear nanocrystal integrated hyperbolic metamaterial cavity. AB - We theoretically investigate the dipolar whispering-gallery modes (WGMs) with different mode orders supported by spherical hyperbolic metamaterial (HMM) cavities consisting of alternating metal and dielectric layers. Associated with the excitations of the WGMs with the highest and the second highest mode orders, the HMM cavities are capable of creating highly enhanced and uniformly distributed local fields in the entire dielectric core region. Variation on the metal filling ratio allows for easily tuning the resonant wavelengths of WGMs over a wide spectral range. By integrating a nonlinear nanocrystal into the HMM cavities, we show enhancements of intensity of second harmonic generation up to a factor of 3.9 * 1010, which is two orders of magnitude higher than the largest enhancement achieved in the single-layer plasmonic core-shell cavities. PMID- 29041434 TI - Thermal analysis and laser performance of a GYSGG/Cr,Er,Pr:GYSGG composite laser crystal operated at 2.79 MUm. AB - We demonstrate the thermal analysis and laser performance of a GYSGG/Cr,Er,Pr:GYSGG composite crystal. The lifetime ratio of lower and upper levels of Er3+ in Cr,Er,Pr:GYSGG crystal is further reduced due to the optimized doping concentrations. The thermal effect of composite crystal is lower than that of Cr,Er,Pr:GYSGG crystal. A maximum pulse energy 342.8 mJ operated at 5 Hz and 2.79 MUm is obtained on the composite crystal, corresponding to electrical-to optical efficiency of 0.86% and slope efficiency of 1.08%. Under the same condition, these values on the Cr,Er,Pr:GYSGG crystal are only 315.8 mJ, 0.79% and 1.04%, respectively. Moreover, the composite crystal has also a relative high laser beam quality, exhibiting obvious advantage in reducing thermal effects and improving laser performances. PMID- 29041435 TI - General point dipole theory for periodic metasurfaces: magnetoelectric scattering lattices coupled to planar photonic structures. AB - We study semi-analytically the light emission and absorption properties of arbitrary stratified photonic structures with embedded two-dimensional magnetoelectric point scattering lattices, as used in recent plasmon-enhanced LEDs and solar cells. By employing dyadic Green's function for the layered structure in combination with the Ewald lattice summation to deal with the particle lattice, we develop an efficient method to study the coupling between planar 2D scattering lattices of plasmonic, or metamaterial point particles, coupled to layered structures. Using the 'array scanning method' we deal with localized sources. Firstly, we apply our method to light emission enhancement of dipole emitters in slab waveguides, mediated by plasmonic lattices. We benchmark the array scanning method against a reciprocity-based approach to find that the calculated radiative rate enhancement in k-space below the light cone shows excellent agreement. Secondly, we apply our method to study absorption enhancement in thin-film solar cells mediated by periodic Ag nanoparticle arrays. Lastly, we study the emission distribution in k-space of a coupled waveguide lattice system. In particular, we explore the dark mode excitation on the plasmonic lattice using the so-called array scanning method. Our method could be useful for simulating a broad range of complex nanophotonic structures, i.e., metasurfaces, plasmon-enhanced light emitting systems and photovoltaics. PMID- 29041436 TI - Self-injection locked CW single-frequency tunable Ti:sapphire laser. AB - A self-injection locked continuous-wave (CW) single-frequency tunable Ti:sapphire laser is demonstrated in this paper. Unidirectional operation of the presented Ti:sapphire laser is achieved by using a retro-reflecting device which can retro reflect a seed laser beam from one direction back into the counter-propagating field. On the basis, the influence of the transmission of output coupler on the unidirectional operation is investigated and it is found that stable unidirectional and single-frequency operation of the Ti:sapphire laser is achieved when the loss difference between both output directions is larger than a certain value, which is easy to be realized by choosing the transmission of output coupler. When the output coupler with transmission of 6.5% is utilized, the maximal 5 W CW single-frequency Ti:sapphire laser with stable unidirectional operation is obtained with the pump power of 18 W. The measured power stability and M2 are better than +/-0.9% and 1.1, respectively. The maximal tuning range and continuous frequency-tuning ability are 120 nm and 40.75 GHz, respectively. PMID- 29041437 TI - Single-frequency oscillation of thin-disk lasers due to phase-matched pumping. AB - We present a novel pump concept that should lead to single-frequency operation of thin-disk lasers without the need for etalons or other spectral filters. The single-frequency operation is due to matching the standing wave pattern of partially coherent pump light to the standing wave pattern of the laser light inside the disk. The output power and the optical efficiency of our novel pump concept are compared with conventional pumping. The feasibility of our pump concept was shown in previous experiments. PMID- 29041438 TI - Widely tunable semiconductor lasers with three interferometric arms. AB - We present a comprehensive study for a new three-branch widely tunable semiconductor laser based on a self-imaging, lossless multi-mode interference (MMI) coupler. We have developed a general theoretical framework that is applicable to all types of interferometric lasers. Our analysis showed that the three-branch laser offers high side-mode suppression ratios (SMSRs) while maintaining a wide tuning range and a low threshold modal gain of the lasing mode. We also present the design rules for tuning over the dense-wavelength division multiplexing grid over the C-band. PMID- 29041439 TI - Equivalence theorem of light waves on scattering from media with different types. AB - The equivalence theorem of light waves on scattering from two media with different types, i.e. the continuous medium and the particulate medium, is discussed. It is shown that the normalized spectral density or the spectral degree of coherence of the scattered field may demonstrate identical distribution when certain conditions between these two media are satisfied. As an example, the scattering of light waves from a Gaussian-centered quasi-homogeneous medium and from a collection of particles with Gaussian-centered quasi-homogeneous distribution is investigated, and the condition for identical normalized spectral density and the condition for identical spectral degree of coherence of the scattered field are obtained. PMID- 29041440 TI - Dispersion controlling meta-lens at visible frequency. AB - Dispersion management is crucial in constructing spectrometers, superprisms, and achromatic lens systems. Unfortunately, the dispersion of natural materials is determined by the molecular energy levels with limited tunability, and thus conventional methods of dispersion controlling are complex and need to trade off other aberration. Metasurface offers an alternative method to overcome those limits via utilizing dedicatedly designed nanostructures that response to special wavelength, which results in well-engineered dispersions. As proof of the concept, we design a series of flat dielectric metasurface lenses, which are able to steer the dispersion arbitrarily for three wavelengths at visible frequency (473, 532, and 632.8 nm). Based on the unique dispersion engineering ability of metasurface, the achromatic meta-lens and the super-dispersion meta-lenses are realized. Furthermore, the light of different wavelengths can be focused on any desired spatial positions. PMID- 29041441 TI - Impact of carbon-ion implantation on the nonlinear optical susceptibility of LiNbO3. AB - In this work we study the impact of ion implantation on the nonlinear optical properties in MgO:LiNbO3 via confocal second-harmonic microscopy. In detail, we spatially characterize the nonlinear susceptibility in carbon-ion implanted lithium niobate planar waveguides for different implantation energies and fluences, as well as the effect of annealing. In a further step, a computational simulation is used to calculate the implantation range of carbon-ions and the corresponding defect density distribution. A comparison between the simulation and the experimental data indicates that the depth profile of the second-order effective nonlinear coefficient is directly connected to the defect density that is induced by the ion irradiation. Furthermore it can be demonstrated that the annealing treatment partially recovers the second-order optical susceptibility. PMID- 29041442 TI - Performance optimization in ultra-long Raman laser amplified 10*30 GBaud DP-QPSK transmission: balancing RIN and ASE noise. AB - We experimentally evaluate the influence of RIN transfer from pump to signal on the transmission performance of a 10 * 30 Gbaud DP-QPSK transmission system using a 2nd-order ultra-long Raman fiber laser amplifier, considering the effect of cavity front-end reflectivity and forward pump power ratio. The evolution of the Q-factors with distance up to maximum reach is monitored for a 10 * 30 Gbaud DP QPSK transmission system with WDM channels between 1542.94 nm to 1550.12 nm. A maximum transmission distance of 6479 km is found for configurations with low forward pump powers corresponding to the optimal balance between RIN and ASE impairments. PMID- 29041443 TI - Generation of the periodically polarized structured light beams. AB - We report a kind of structured light beam with periodical polarization and phase singularities. It is generated from a setup consisting of conical refraction transformation and 4f-system. By this setup, the periodical structures are produced without any change of intensity distributions. We analyze both theoretically and experimentally the polarization and phase structures of the periodically structured light beam. The dependence of period is demonstrated on the length of crystal and the focal length. It is shown that the polarization of the input beam can be used to control the polarization and phase structures of the output beam. PMID- 29041444 TI - Vortex topographic microscopy for full-field reference-free imaging and testing. AB - Light vortices carry orbital angular momentum and have a variety of applications in optical manipulation, high-capacity communications or microscopy. Here we propose a new concept of full-field vortex topographic microscopy enabling a reference-free displacement and shape measurement of reflective samples. The sample surface is mapped by an array of light spots enabling quantitative reconstruction of the local depths from defocused wavefronts. Light from the spots is converted to a lattice of mutually uncorrelated double-helix point spread functions (PSFs) whose angular rotation enables depth estimation. The PSFs are created by self-interference of optical vortices that originate from the same wavefront and are shaped by a spiral phase mask (SPM). The method benefits from the isoplanatic PSFs whose shape and size remain unchanged under defocusing, ensuring high precision in a wide range of measured depths. The technique was tested using a microscope Nikon Eclipse E600 working with a micro-hole plate providing structured illumination and the SPM placed in the imaging path. The depth measurement was demonstrated in the range of 11 um exceeding the depth of field of the microscope objective up to 19 times. Throughout this range, the surface depth was mapped with the precision better than 30 nm at the lateral positions given with the precision better than 10 nm. Application potential of the method was demonstrated by profiling the top surface of a bearing ball and reconstructing the three-dimensional relief of a reflection phase grating. PMID- 29041445 TI - Athermal silicon optical add-drop multiplexers based on thermo-optic coefficient tuning of sol-gel material. AB - Silicon photonics has gained interest for its potential to provide higher efficiency, bandwidth and reduced power consumption compared to electrical interconnects in datacenters and high performance computing environments. However, it is well known that silicon photonic devices suffer from temperature fluctuations due to silicon's high thermo-optic coefficient and therefore, temperature control in many applications is required. Here we present an athermal optical add-drop multiplexer fabricated from ring resonators. We used a sol-gel inorganic-organic hybrid material as an alternative to previously used materials such as polymers and titanium dioxide. In this work we studied the thermal curing parameters of the sol-gel and their effect on thermal wavelength shift of the rings. With this method, we were able to demonstrate a thermal shift down to -6.8 pm/ degrees C for transverse electric (TE) polarization in ring resonators with waveguide widths of 325 nm when the sol-gel was cured at 130 degrees C for 10.5 hours. We also achieved thermal shifts below 1 pm/ degrees C for transverse magnetic (TM) polarization in the C band under different curing conditions. Curing time compared to curing temperature shows to be the most important factor to control sol-gel's thermo-optic value in order to obtain an athermal device in a wide temperature range. PMID- 29041446 TI - Verification of calibration methods for determining photon-counting detection efficiency using superconducting nano-wire single photon detectors. AB - In recent years several ways to radiometrically calibrate optical fiber-coupled detectors have been developed. However, fiber-coupled calibration methods for single photon detectors have not been compared by national metrology institutes in order to validate their equivalence or traceability to the international systems of units yet.. Here, we present the comparison of radiometric calibration methods traceable to a NIST cryogenic radiometer at the 'few-photon' level. The calibration methods are based on metrology grade optical power meters. The expanded (k = 2) relative standard uncertainties of the calibration methods for the detection efficiency are of the order of 0.5%. However, the results changed relatively by 10% with a different set of optical fibers and mating connectors. These results stress the importance of fiber-core dimensions and fiber-connector repeatability. PMID- 29041447 TI - Characterization, uniformity and photo-catalytic properties of graphene/TiO2 nanocomposites via Raman mapping. AB - Three types of anatase TiO2, graphene-TiO2, TiO2-graphene composites (G/TiO2) were developed, synthesized via a combination of simple sol-gel self-assembly method and additional thermal annealing process. Their structures and properties are determined by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), atomic force microscopy (AFM) and Raman spectrum analysis. In addition, Raman spectra of TiO2 and graphene, the band shift and intensity of G and 2D band were analyzed, in order to verify the mutual coupling between TiO2 and graphene. Combined Raman mapping with AFM analysis, the agglomeration effect of TiO2 nanoparticles was figured out by quantitative analysis. Finally, the photo-catalytic properties of three kinds of composites were experimentally studied via Raman mapping measurements. The results reveal that graphene with high electron mobility, as an acceptor through interfacial interactions, was certificated to enhance the photo-catalytic effect of TiO2. PMID- 29041448 TI - Security weaknesses of underwater wireless optical communication. AB - In this work, for the first time, we uncover that the level of security we have traditionally taken for granted on underwater wireless optical communication (UWOC) may not always be there. We first numerically investigate the security weaknesses of UWOC via Monte Carlo simulation. With the link distance increasing or the water becoming more turbid, the simulation results indicate that the possibility of information leakage increases, which may pose a great threat to the security of UWOC. By using a high-sensitivity multi-pixel photon counter (MPPC) placed aside the water tank, a 5-MHz square wave signal is successfully tapped at 1-m, 3-m, and 5-m underwater transmission distances, which preliminarily verifies the probability of information leakage. We further experimentally demonstrate an UWOC system with potential eavesdropping employing a 2.5-Gb/s orthogonal frequency division multiplexing (OFDM) signal. After transmitting through a 15-m underwater channel, the OFDM signal is eavesdropped by a mirror at 7.8 m. Both the normal receiver at 15 m and the eavesdropping receiver at 7.8 m can achieve a bit error rate (BER) below the forward error correction (FEC) limit of 3.8 * 10-3, which validates that UWOC indeed suffers potential safety hazard. PMID- 29041449 TI - Low-threshold, single-mode, and linearly polarized lasing from all organic quasicrystal microcavity. AB - Organic microcavity lasers based on liquid crystals have attracted substantial attention due to their easy processing, compact volume and excellent tunable properties. However, the threshold of traditional holographic polymer dispersed liquid crystals (H-PDLCs) laser doped with dye is usually as high as several tens of MUJ/pulse, which hinders its broad applications. Herein, we demonstrate a low threshold lasing from quasicrystal based on H-PDLCs. An conjugated polymer poly (2-methoxy-5-(2'-ethyl-hexyloxy)-p-phenylenevinylene (MEH-PPV) film is coated on the inner surface of glass substrate to dramatically reduce the lasing threshold, which is 20 times lower than that of dye-doped microcavity laser. A low threshold, single-mode, linearly polarized lasing is achieved when the thickness of MEH-PPV film is optimized at 80 nm. Due to its easy fabrication, excellent performance and bio-compatibility, this compact coherent light source may be useful in lab-on-chip applications such as detection, sensing and analyzing, as well as display, optical communications, and other photonic fields. PMID- 29041450 TI - Dependencies of surface plasmon coupling effects on the p-GaN thickness of a thin p-type light-emitting diode. AB - The high performance of a light-emitting diode (LED) with the total p-type thickness as small as 38 nm is demonstrated. By increasing the Mg doping concentration in the p-AlGaN electron blocking layer through an Mg pre-flow process, the hole injection efficiency can be significantly enhanced. Based on this technique, the high LED performance can be maintained when the p-type layer thickness is significantly reduced. Then, the surface plasmon coupling effects, including the enhancement of internal quantum efficiency, increase in output intensity, reduction of efficiency droop, and increase of modulation bandwidth, among the thin p-type LED samples of different p-type thicknesses that are compared. These advantageous effects are stronger as the p-type layer becomes thinner. However, the dependencies of these effects on p-type layer thickness are different. With a circular mesa size of 10 MUm in radius, through surface plasmon coupling, we achieve the record-high modulation bandwidth of 625.6 MHz among c plane GaN-based LEDs. PMID- 29041451 TI - Experimental demonstration of optical interconnects exploiting orbital angular momentum array. AB - To improve the transmission capacity and integration level of future optical interconnect systems, we present a communication scheme using orbital angular momentum (OAM) array encoding/decoding. By optimizing the use of space dimension (spatially orthogonal modes and spatial positions), information carried by a single symbol can be greatly improved. Experiment demonstration of 625-element and 1296-element high-base OAM array encoding/decoding by employing an array with 4 spatial locations each with 5 and 6 possible OAM beams are presented. Direct detection and simultaneous multi-OAM demodulation method are used for decoding the encoded OAM arrays. Transmission of data signal and grey-scale image signal under atmospheric turbulence are also evaluated in the experiment. PMID- 29041452 TI - In situ high-resolution thermal microscopy on integrated circuits. AB - The miniaturization of metal tracks in integrated circuits (ICs) can cause abnormal heat dissipation, resulting in electrostatic discharge, overvoltage breakdown, and other unwanted issues. Unfortunately, locating areas of abnormal heat dissipation is limited either by the spatial resolution or imaging acquisition speed of current thermal analytical techniques. A rapid, non-contact approach to the thermal imaging of ICs with sub-MUm resolution could help to alleviate this issue. In this work, based on the intensity of the temperature dependent two-photon fluorescence (TPF) of Rhodamine 6G (R6G) material, we developed a novel fast and non-invasive thermal microscopy with a sub-MUm resolution. Its application to the location of hotspots that may evolve into thermally induced defects in ICs was also demonstrated. To the best of our knowledge, this is the first study to present high-resolution 2D thermal microscopic images of ICs, showing the generation, propagation, and distribution of heat during its operation. According to the demonstrated results, this scheme has considerable potential for future in situ hotspot analysis during the optimization stage of IC development. PMID- 29041453 TI - Sensitivity enhanced fiber sensor based on a fiber ring microwave photonic filter with the Vernier effect. AB - A temperature sensor employing the Vernier effect generated from a cascaded fiber rings based microwave photonic filter (MPF) is proposed and experimentally demonstrated. The structure of the fiber ring is used as a sensing element as well as the sampling and delaying component of the MPF in our proposed sensing scheme. The sensing characteristics of both single ring and cascaded fiber rings based sensors have been studied and compared. By employing two cascaded fiber rings of slightly different length, the Vernier effect can be generated in the frequency response of the MPF. The sensing interrogation of the cascaded fiber rings based sensor is conducted by detecting the frequency shift of the upper envelope of the measured frequency response curve. The experimental results show that the sensitivity of the cascaded fiber rings based sensor can be improved about 30 times compared with the single fiber ring based temperature sensor. PMID- 29041454 TI - Self-calibration of Fizeau interferometer and planar scale gratings in Littrow setup. AB - A new method, in which the wavefronts of the zero-order and the positive and negative first-order diffracted beams from a planar scale grating in Littrow setup are analyzed by a Fizeau interferometer, is proposed to evaluate the Z directional out-of-flatness as well as the X- and Y-directional pitch deviations of the planar scale grating over a large area. Meanwhile, the surface profile of the reference optical flat in the Fizeau interferometer can also be determined in a much simpler and more efficient approach than the commonly used liquid-flat reference and three-flat test calibration methods. Simulations are presented to verify the feasibility of the proposed method. PMID- 29041455 TI - Ultra-bright gamma-ray flashes and dense attosecond positron bunches from two counter-propagating laser pulses irradiating a micro-wire target. AB - We propose a novel scheme to generate ultra-bright ultra-short gamma-ray flashes and high-energy-density attosecond positron bunches by using multi-dimensional particle-in-cell simulations with quantum electrodynamics effects incorporated. By irradiating a 10 PW laser pulse with an intensity of 1023 W/cm2 onto a micro wire target, surface electrons are dragged-out of the micro-wire and are effectively accelerated to several GeV energies by the laser ponderomotive force, forming relativistic attosecond electron bunches. When these electrons interact with the probe pulse from the other side, ultra-short gamma-ray flashes are emitted with an ultra-high peak brightness of 1.8 * 1024 photons s-1mm-2mrad-2 per 0.1%BW at 24 MeV. These photons propagate with a low divergence and collide with the probe pulse, triggering the Breit-Wheeler process. Dense attosecond e-e+ pair bunches are produced with the positron energy density as high as 1017 J/m3 and number of 109. Such ultra-bright ultra-short gamma-ray flashes and secondary positron beams may have potential applications in fundamental physics, high energy-density physics, applied science and laboratory astrophysics. PMID- 29041456 TI - Cylindrical vector resonant modes achieved in planar photonic crystal cavities with enlarged air-holes. AB - We reveal a triangular-lattice planar photonic crystal supports Bloch modes with radially and azimuthally symmetric electric field distributions at the top band edge of the first photonic band. Bifurcated from the corresponding Bloch modes, two cylindrical vector resonant modes are achieved by simply enlarging the central air-hole of the planar photonic crystal, which have high quality factors around 3,000 and small mode volume of (lambda/n)3. The far-field radiations of the two resonant modes present high-quality cylindrical vector beam profiles. The resonant modes could be optimized by modifying the six nearest neighboring air holes around the central defect. The cylindrically symmetric characteristics of the resonant mode's near- and far-fields might provide a new view to investigate light-matter interactions and device developments in planar photonic crystal cavities. PMID- 29041457 TI - Adaptively loaded SP-offset-QAM OFDM for IM/DD communication systems. AB - In this paper, we propose adaptively loaded set-partitioned offset quadrature amplitude modulation (SP-offset-QAM) orthogonal frequency division multiplexing (OFDM) for low-cost intensity-modulation direct-detection (IM/DD) communication systems. We compare this scheme with multi-band carrier-less amplitude phase modulation (CAP) and conventional OFDM, and demonstrate >40 Gbit/s transmission over 50-km single-mode fiber. It is shown that the use of SP-QAM formats, together with the adaptive loading algorithm specifically designed to this group of formats, results in significant performance improvement for all these three schemes. SP-offset-QAM OFDM exhibits greatly reduced complexity compared to SP QAM based multi-band CAP, via parallelized implementation and minimized memory length for spectral shaping. On the other hand, this scheme shows better performance than SP-QAM based conventional OFDM at both back-to-back and after transmission. We also characterize the proposed scheme in terms of enhanced tolerance to fiber intra-channel nonlinearity and the potential to increase the communication security. The studies show that adaptive SP-offset-QAM OFDM is a promising IM/DD solution for medium- and long-reach optical access networks and data center connections. PMID- 29041458 TI - Multilayer graphene electro-absorption optical modulator based on double-stripe silicon nitride waveguide. AB - A graphene electro-absorption optical modulator based on double-stripe silicon nitride waveguide is proposed and analyzed. By embedding four graphene layers in the double-stripe silicon nitride waveguide and the graphene layers co-electrode design, the total metal-graphene contact resistance can be reduced 50% and as high as 30.6GHz modulation bandwidth can be achieved theoretically. The calculated extinction ratio and figure of merit are 0.1658dB/um and 9.7, respectively. And the required switching voltage from its minimum to maximum absorption state is 3.8180V and 780.50fJ/bit power consuming can be achieved. The proposed modulator can remedy the lack of high speed modulator on the passive silicon nitride waveguide. PMID- 29041459 TI - Nearly perfect absorption of light in monolayer molybdenum disulfide supported by multilayer structures. AB - A novel multilayer photonic structure is proposed to achieve the strong enhancement of light absorption in monolayer molybdenum disulfide (MoS2). Both numerical and analytical results illustrate that the absolute absorption of light in this atomically thin layer can approach as high as 96% at the visible wavelengths due to the excitation of Tamm plasmon mode. It is also found that the operating wavelength and height of sharp absorption peak are particularly dependent on the layer thicknesses and period number of dielectric grating, MoS2 position in the spacer, and incident angle of light, which contribute to the tunability and selectivity of light-MoS2 interaction. These results would provide a new pathway for the improvement of MoS2 photoluminescence and photodetection. PMID- 29041460 TI - Optimizing the spectral range of diffractive metalenses for polychromatic imaging applications. AB - Recent progress has made matalenses a reality, with many publications relating to methods of implementation and performance evaluation of these elements. Basic metalens function is similar to that of a continuous (kinoform) diffractive lens, but the advantage is that they can be manufactured as a binary component. A significant limitation of metalenses, is its strong chromatic aberration. Recently there has been some success in correcting metalens chromatic aberration, albeit at the expense of transmission efficiency towards the desired diffraction order. Clearly, there is a tradeoff between parameters such as spectral bandwidth and spatial resolution. Hence, a major goal of this paper is to set up a metric for evaluation of metalens performance, allowing fair comparison of novel metalens technologies, such as achromatic metalenses, in terms of optical performance. Furthermore, we explore possibilities for practical use of non chromatically corrected metalenses in polychromatic applications, by optimizing the metalens parameters. It is our hope that the current manuscript will serve as a guide for the design and evaluation of metalenses for practical applications. PMID- 29041462 TI - Phase retrieval in two-shot phase-shifting interferometry based on phase shift estimation in a local mask. AB - Fringe analysis in two-shot phase-shifting interferometry is important but meets challenges due to a limited number of images, corrupting noise, and background modulation. Here we propose an effective algorithm for phase retrieval from two interferograms with unknown phase shifts. The algorithm first evaluates the phase shift in a local mask through phase fitting and global optimization and then computes a full-field phase map using an arctangent function. Since the phase shift evaluation is performed within a local mask, the algorithm is fast compared with conventional optimization-based algorithms and typically needs tens of seconds to complete the processing. Computer simulation and experimental results show that the proposed algorithm has excellent performance compared with state-of the-art algorithms. A complete software package of the algorithm in MATLAB is available at http://two-shot.sourceforge.io/. PMID- 29041461 TI - High-resolution light-scattering imaging with two-dimensional hexagonal illumination patterns: system implementation and image reconstruction formulations. AB - Structured illumination microscopy (SIM) was recently adapted to coherent imaging, named structured oblique-illumination microscopy (SOIM), to improve the contrast and resolution of a light-scattering image. Herein, we present high resolution laterally isotropic SOIM imaging with 2D hexagonal illuminations. The SOIM is implemented in a SIM fluorescence system based on a spatial-light modulator (SLM). We design an SLM pattern to generate diffraction beams at 0 degrees and +/- 60.3 degrees simultaneously to form a 2D hexagonal illumination, and undertake calculations to obtain optimal SLM shifts at 19 phases to yield a reconstructed image correctly. Beams of linear and circular polarizations are used to show the effect of polarization on the resolution improvement. We derive the distributions of the electric field of the resultant hexagonal patterns and work out the formulations of the corresponding coherent scattering imaging for image reconstruction. The reconstructed images of gold nanoparticles (100 nm) confirm the two-fold improvement of resolution and reveal the effect of polarization on resolving adjacent nanoparticles. To demonstrate biological applications, we present the cellular structures of a label-free fixed HeLa cell with improved contrast and resolution. This work enables one to perform high-resolution dual-mode - fluorescence and light-scattering - imaging in a system, and is expected to broaden the applications of SOIM. PMID- 29041463 TI - Real-time multi-target ranging based on chaotic polarization laser radars in the drive-response VCSELs. AB - According to the principle of complete chaos synchronization and the theory of Hilbert phase transformation, we propose a novel real-time multi-target ranging scheme by using chaotic polarization laser radar in the drive-response vertical cavity surface-emitting lasers (VCSELs). In the scheme, to ensure each polarization component (PC) of the master VCSEL (MVCSEL) to be synchronized steadily with that of the slave VCSEL, the output x-PC and y-PC from the MVCSEL in the drive system and those in the response system are modulated by the linear electro-optic effect simultaneously. Under this condition, by simulating the influences of some key parameters of the system on the synchronization quality and the relative errors of the two-target ranging, related operating parameters can be optimized. The x-PC and the y-PC, as two chaotic radar sources, are used to implement the real-time ranging for two targets. It is found that the measured distances of the two targets at arbitrary position exhibit strong real-time stability and only slight jitter. Their resolutions are up to millimeters, and their relative errors are very small and less than 2.7%. PMID- 29041464 TI - Down-conversion RF/photonic link with a monolithically integrated ACP-OPLL phase demodulator. AB - We present a frequency down conversion RF/photonic link with an attenuation counter-propagating optical phase lock loop (ACP-OPLL) photonic integrated circuit (PIC) receiver. Frequency down conversion was accomplished by nonlinear optical phase modulation in a 2.5mm long transmitter (TX) multi-quantum-well (MQW) phase modulator. The down-conversion link demonstrated RF to IF conversion loss of ~9dB and spurious free dynamic range (SFDR) of ~118dB?Hz2/3. PMID- 29041465 TI - Sensitive and broadband measurement of dispersion in a cavity using a Fourier transform spectrometer with kHz resolution. AB - Optical cavities provide high sensitivity to dispersion since their resonance frequencies depend on the index of refraction. We present a direct, broadband, and accurate measurement of the modes of a high finesse cavity using an optical frequency comb and a mechanical Fourier transform spectrometer with a kHz-level resolution. We characterize 16000 longitudinal cavity modes spanning 16 THz of bandwidth in terms of center frequency, linewidth, and amplitude. Using the center frequencies we retrieve the group delay dispersion of the cavity mirror coatings and pure N2 with 0.1 fs2 precision and 1 fs2 accuracy, as well as the refractivity of the 3nu1 + nu3 absorption band of CO2 with 5 * 10-12 precision. This opens up for broadband refractive index metrology and calibration-free spectroscopy of entire molecular bands. PMID- 29041466 TI - Robust optical-frequency-comb based on the hybrid mode-locked Er:fiber femtosecond laser. AB - We demonstrate an optical frequency comb in which an Er:fiber-based femtosecond laser employs nonlinear amplifier loop mirror (NALM) and nonlinear polarization evolution (NPE) mode-locking mechanisms. The laser combines advantages of good robustness of NALM and low noise feature of NPE. Our experimental results show that the hybrid mode-locked laser has high power, low relative intensity noise and self-started property, enabling the construction of a robust optical frequency comb system. In-loop relative instabilities of both stabilized repetition rate and carrier-envelope-offset frequency are well below 1 * 10-17 at 1 second integration time. PMID- 29041467 TI - High-power symmetric-connected uni-traveling-carrier photodiode array integrated with sub-wavelength gratings based beam-splitter. AB - We present a two-element back-illuminated symmetric-connected uni-traveling carrier photodiode array (SC-PDA) integrated with sub-wavelength-gratings based beam-splitter (SWGs-BS) for high power optoelectronic applications. The SC-PDA with SWGs-BS, a top-illuminated SC-PDA and a single PD were fabricated and tested. The proposed SC-PDA with SWGs-BS demonstrates a 3dB bandwidth of 23.8GHz@60mA, a saturation current of 87.9mA@12GHz and a maximum output RF power of ~16dBm@12GHz. Compared to the top-illuminated SC-PDA and the single PD, the proposed SC-PDA with SWGs-BS achieved high-power handling capability at low coupling complexity and requires no phase-matching techniques in the system. PMID- 29041468 TI - Generating laser-pulse enantiomers. AB - We present an optical setup capable of mirroring an arbitrary, potentially time varying, polarization state of an ultrashort laser pulse. The incident beam is split up in two and the polarization of one beam is mirrored by reflection off a mirror in normal incidence. Afterwards, both beams are recombined in time and space such that two collinear ultrashort laser pulses with mutually mirrored polarization, i.e., laser-pulse enantiomers, leave the setup. We employ the Jones formalism to describe the function of the setup and analyze the influence of alignment errors before describing the experimental implementation and alignment protocol. Since no wave plates are utilized, broadband pulses in a large wavelength range can be processed. In particular, we show that the setup outperforms broadband achromatic wave plates. Furthermore, since the two beams travel separately through the optical system they can be blocked independently. This opens the possibility for circular dichroism, ellipsometry, and anisotropy spectroscopy with shot-to-shot chopping and detection schemes as well as chiral coherent control applications. PMID- 29041469 TI - Two-dimensional coherent spectroscopy of a THz quantum cascade laser: observation of multiple harmonics. AB - Two-dimensional spectroscopy is performed on a terahertz (THz) frequency quantum cascade laser (QCL) with two broadband THz pulses. Gain switching is used to amplify the first THz pulse and the second THz pulse is used to probe the system. Fourier transforms are taken with respect to the delay time between the two THz pulses and the sampling time of the THz probe pulse. The two-dimensional spectrum consists of three peaks at (omegatau = 0, omegat = omega0), (omegatau = omega0, omegat = omega0), and (omegatau = 2omega0, omegat = omega0) where omega0 denotes the lasing frequency. The peak at omegatau = 0 represents the response of the probe to the zero-frequency (rectified) component of the instantaneous intensity and can be used to measure the gain recovery. PMID- 29041470 TI - Coherence effects in electromagnetically induced transparency in V-type systems of 87Rb. AB - We present a theoretical and experimental study of electromagnetically induced transparency (EIT) in V-type systems of 87Rb atoms. We calculate accurate lineshapes of V-type EIT spectra by solving density matrix equations considering all the magnetic sublevels involved. The calculated spectra demonstrate consistency with the experimental results. We identify the coherence effect in the calculated EIT spectra, and determine that the coherence effect exists only in the cycling transition. We explain the reason for the suppression of the coherence effect in open transitions using an analytical calculation of the spectra for a simple V-type three-level atomic system. PMID- 29041471 TI - Level-set based mask synthesis with a vector imaging model. AB - With continuous shrinking of critical dimension (CD) and the application of immersion lithography system to technology nodes 22nm and beyond, the vector nature of electromagnetic fields propagating from mask to wafer plane cannot be ignored, rendering mask synthesis under scalar imaging model inadequate. In this paper, we develop a level-set based optimization framework for mask synthesis with a vector imaging model. The forward model of vector image formation is established, and then the photomask synthesis is addressed as an inverse imaging problem whose variational level-set reformulation is represented by a stable time dependent model, which is solved by employing conjugate gradient methods of the cost function and readily available finite-difference schemes. Experimental results demonstrate pronounced performance in terms of pattern fidelity and edge placement error, together with notable computation acceleration and better convergence performance. PMID- 29041472 TI - Efficient inversion of multiple-scattering model for optical diffraction tomography. AB - Optical diffraction tomography relies on solving an inverse scattering problem governed by the wave equation. Classical reconstruction algorithms are based on linear approximations of the forward model (Born or Rytov), which limits their applicability to thin samples with low refractive-index contrasts. More recent works have shown the benefit of adopting nonlinear models. They account for multiple scattering and reflections, improving the quality of reconstruction. To reduce the complexity and memory requirements of these methods, we derive an explicit formula for the Jacobian matrix of the nonlinear Lippmann-Schwinger model which lends itself to an efficient evaluation of the gradient of the data fidelity term. This allows us to deploy efficient methods to solve the corresponding inverse problem subject to sparsity constraints. PMID- 29041473 TI - Uncertainty characterization of particle location from refocused plenoptic images. AB - Plenoptic imaging is a 3D imaging technique that has been applied for quantification of 3D particle locations and sizes. This work experimentally evaluates the accuracy and precision of such measurements by investigating a static particle field translated to known displacements. Measured 3D displacement values are determined from sharpness metrics applied to volumetric representations of the particle field created using refocused plenoptic images, corrected using a recently developed calibration technique. Comparison of measured and known displacements for many thousands of particles allows for evaluation of measurement uncertainty. Mean displacement error, as a measure of accuracy, is shown to agree with predicted spatial resolution over the entire measurement domain, indicating robustness of the calibration methods. On the other hand, variation in the error, as a measure of precision, fluctuates as a function of particle depth in the optical direction. Error shows the smallest variation within the predicted depth of field of the plenoptic camera, with a gradual increase outside this range. The quantitative uncertainty values provided here can guide future measurement optimization and will serve as useful metrics for design of improved processing algorithms. PMID- 29041474 TI - Coherent noise reduction in digital holographic microscopy by averaging multiple holograms recorded with a multimode laser. AB - In digital holographic microscopy (DHM), it is undesirable to observe coherent noise in the reconstructed images. The sources of the noise are mainly the parasitic interference fringes caused by multiple reflections and the speckle pattern caused by the optical scattering on the object surface. Here we propose a noise reduction approach in DHM by averaging multiple holograms recorded with a multimode laser. Based on the periodicity of the temporal coherence of a multimode semiconductor laser, we acquire a series of holograms by changing the optical path length difference between the reference beam and object beam. Because of the use of low coherence light, we can remove the parasitic interference fringes caused by multiple reflections in the holograms. In addition, the coherent noise patterns change in this process due to the different optical paths. Therefore, the coherent noise can be reduced by averaging the multiple reconstructions with uncorrelated noise patterns. Several experiments have been carried out to validate the effectiveness of the proposed approach for coherent noise reduction in DHM. It is shown a remarkable improvement both in amplitude imaging quality and phase measurement accuracy. PMID- 29041475 TI - Sub-shot-noise shadow sensing with quantum correlations. AB - The quantised nature of the electromagnetic field sets the classical limit to the sensitivity of position measurements. However, techniques based on the properties of quantum states can be exploited to accurately measure the relative displacement of a physical object beyond this classical limit. In this work, we use a simple scheme based on the split-detection of quantum correlations to measure the position of a shadow at the single-photon light level, with a precision that exceeds the shot-noise limit. This result is obtained by analysing the correlated signals of bi-photon pairs, created in parametric downconversion and detected by an electron multiplying CCD (EMCCD) camera employed as a split detector. By comparing the measured statistics of spatially anticorrelated and uncorrelated photons we were able to observe a significant noise reduction corresponding to an improvement in position sensitivity of up to 17% (0.8dB). Our straightforward approach to sub-shot-noise position measurement is compatible with conventional shadow-sensing techniques based on the split-detection of light fields, and yields an improvement that scales favourably with the detector's quantum efficiency. PMID- 29041476 TI - Segmented detection SPR sensor based on seven-core fiber. AB - By using a seven-core fiber (SCF), we propose and demonstrate a novel segmented detection SPR sensor, which solves two bottlenecks about the fiber SPR sensor of low sensitivity and the difficulty in the multichannel detection. The proposed sensor has ultra high sensitivity and wide detection range because of employing the segmented detection technology. Besides that, the proposed sensor employs reflection-type time division multiplexing (TDM) technology in fiber multichannel detection for the first time. We couple light into and out of the six circularly symmetric distributed cores of the seven-core fiber to realize the three channel SPR sensing and testing. This three-channel SPR sensor has the advantages of detecting biochemical or multi analytes reactions and eliminating the distractions due to temperature fluctuations or sample composition variations and adsorption of non-target molecules to the sensor surface. This SPR sensor also has the advantages of online monitoring by inserting into the blood vessel because of its small size. Furthermore, this paper has deeply researched the relationship between the refractive index of the solution to be measured, the grinding angle of the sensing channel, the sensitivity and the detection range. In this paper, we propose a novel segmented detection method which realizes the wide detection range with the wider refractive index range of 1.333~1.395 and the narrower working bandwidth of 250nm compared with the common SPR sensor, the average sensitivity and the maximum sensitivity of the sensor reach 7387.1nm/RIU and 8502.5nm/RIU respectively. PMID- 29041477 TI - Towards a holographic approach to spherical aberration correction in scanning transmission electron microscopy. AB - Recent progress in phase modulation using nanofabricated electron holograms has demonstrated how the phase of an electron beam can be controlled. In this paper, we apply this concept to the correction of spherical aberration in a scanning transmission electron microscope and demonstrate an improvement in spatial resolution. Such a holographic approach to spherical aberration correction is advantageous for its simplicity and cost-effectiveness. PMID- 29041478 TI - Advanced active quenching circuit for ultra-fast quantum cryptography. AB - Commercial photon-counting modules based on actively quenched solid-state avalanche photodiode sensors are used in a wide variety of applications. Manufacturers characterize their detectors by specifying a small set of parameters, such as detection efficiency, dead time, dark counts rate, afterpulsing probability and single-photon arrival-time resolution (jitter). However, they usually do not specify the range of conditions over which these parameters are constant or present a sufficient description of the characterization process. In this work, we perform a few novel tests on two commercial detectors and identify an additional set of imperfections that must be specified to sufficiently characterize their behavior. These include rate dependence of the dead time and jitter, detection delay shift, and "twilighting". We find that these additional non-ideal behaviors can lead to unexpected effects or strong deterioration of the performance of a system using these devices. We explain their origin by an in-depth analysis of the active quenching process. To mitigate the effects of these imperfections, a custom-built detection system is designed using a novel active quenching circuit. Its performance is compared against two commercial detectors in a fast quantum key distribution system with hyper-entangled photons and a random number generator. PMID- 29041479 TI - Double-channel angular-multiplexing polarization holography with common-path and off-axis configuration. AB - We propose a double-channel angular-multiplexing polarization holographic imaging system with common-path and off-axis configurations. In the system, its input plane is spatially divided into three windows: an object window and two reference windows, and two orthogonal linear polarizers are attached, respectively, on the two reference windows; a two-dimensional cross grating is inserted between the input and output planes of the system. Thus the object beam passing through the object window and the two orthogonal polarized reference beams passing through the two reference windows can overlap each other at the output plane of the system and form a double-channel angular-multiplexing polarization hologram (DC AM-PH). Using this system, the complex amplitude distributions of two orthogonal polarized components from an object can be recorded and reconstructed by one single-shot DC-AM-PH at the same time. Theoretical analysis and experimental results demonstrated that the system can be used to measure the Jones matrix parameters of polarization-sensitive or birefringent materials. PMID- 29041480 TI - Computational integral imaging reconstruction of perspective and orthographic view images by common patches analysis. AB - A novel method to computationally reconstruct perspective and orthographic view images with full resolution of a recording device from a single integral photograph is proposed. Firstly, a group of image slices that contain full yet redundant information to reconstruct the view image are generated, and the object surface is divided into pieces by the points that correspond to the centers of image slices. Secondly, the image slices that contribute to the pieces are extracted and redundant information embedded in them are figured out by common patches analysis. Finally, the view image is reconstructed by excluding the redundant information and resampling with maximum sampling rate. Each piece of the object surface is represented with 9 patches at most from 4 adjacent elemental images, and view images with high quality are reconstructed. Both simulations and experiments verify the validity of the method. PMID- 29041481 TI - Quantum dot white light emitting diodes with high scotopic/photopic ratios. AB - Alloy core/shell CdxZn1-xS/ZnS quantum dots (QDs) are emerging as robust candidates for light-emitting diodes (LEDs), however the emission range of the current CdxZn1-xS/ZnS is quite limited, ranging from 390 to 470 nm. It still remains a challenging task to construct white LEDs based on current CdxZn1-xS/ZnS system. Here, a versatile ZnSe with a moderate band gap is introduced onto the Cd0.1Zn0.9S core. The ZnSe shell, on one hand, can passivate the core surface which leads to bright emissions. On the other hand, it is essential in extending the emission to red region so that the emission wavelengths of Cd0.1Zn0.9S/ZnS and Cd0.1Zn0.9S/ZnSe QDs can cover the whole visible region, which is very important for white LED applications. Two- and four-hump QD-based LEDs are computationally and experimentally investigated. Results show that four-hump quantum dot light-emitting diodes (QLED) have better performances than the two hump one, in the luminous and the vision properties. The fabricated white LEDs (WLEDs) based on Cd0.1Zn0.9S/ZnS and Cd0.1Zn0.9S/ZnSe QDs exhibits a scotopic/photopic ratio (S/P) ratio as high as 2.52, which exceeds the current limit of 2.50 by common lighting technologies, a color rendering index of 90.3, a luminous efficacy of optical radiation of 460.78 lumen per unit optical power, and a correlated color temperature of 5454 K. These results suggest that CdxZn1 xS/ZnS and CdxZn1-xS/ZnSe quantum dots serving as emitters hold great promise for the next-generation white light source with better S/P ratio. PMID- 29041482 TI - Time-domain multiplexed high resolution fiber optics strain sensor system based on temporal response of fiber Fabry-Perot interferometers. AB - We developed a multiplexed strain sensor system with high resolution using fiber Fabry-Perot interferometers (FFPI) as sensing elements. The temporal responses of the FFPIs excited by rectangular laser pulses are used to obtain the strain applied on each FFPI. The FFPIs are connected by cascaded couplers and delay fiber rolls for the time-domain multiplexing. A compact optoelectronic system performing closed-loop cyclic interrogation is employed to improve the sensing resolution and the frequency response. In the demonstration experiment, 3-channel strain sensing with resolutions better than 0.1 nepsilon and frequency response higher than 100 Hz is realized. PMID- 29041483 TI - Nanopatterned luminescent concentrators for visible light communications. AB - Visible light communication (VLC) is a promising candidate for high-speed wireless communication with numerous unlicensed spectrum. To achieve high-speed data communication, it requires intense light signals concentrated on a tiny fast photodiode. The common way of using focusing optics reduces the field of view (FoV) of the photodiode due to the conservation of etendue. Luminescent solar concentrators (LSC) provide a solution to enhance the signals without affecting the FoV. In this paper we demonstrate nanopatterned LSCs fabricated on flexible plastics that achieve a doubling of optical gain compared to its traditional rectangular counterparts. These LSCs can free VLC detectors from complex active pointing and tracking systems, making them compatible with smart mobile terminals in a simple fashion. PMID- 29041484 TI - Large mode area inverse index fiber with a graded index profile for high power single mode operation. AB - We propose a new gain fiber structure with an inverse index profile for high power amplification of a Gaussian single mode beam. A large mode area (LMA) design can be fulfilled with the inverse index profile by implementing a graded index in the depressed core. We numerically show that the proposed gain fiber can guide a single mode Gaussian beam with a large beam area and amplify the beam to a kW level output power. PMID- 29041485 TI - Scan-less hyperspectral dual-comb single-pixel-imaging in both amplitude and phase. AB - We have developed a hyperspectral imaging scheme that involves a combination of dual-comb spectroscopy and Hadamard-transform-based single-pixel imaging. The scheme enables us to obtain 12,000 hyperspectral images of amplitude and phase at a spatial resolution of 46 um without mechanical scanning. The spectral resolution given by the data point interval in the frequency domain is 20 MHz and the comb mode interval is 100 MHz over a spectral range of 1.2 THz centered at 191.5 THz. As an initial demonstration of our scheme, we obtained spectroscopic images of a standard test chart through an etalon plate. The thickness of an absorptive chromium-coated layer on a float-glass substrate was determined to be 70 nm from the hyperspectral phase images in the near-infrared wavelength region. PMID- 29041487 TI - 3D image distortion problem in digital in-line holographic microscopy and its effective solution. AB - Digital in-line holographic microscopy (DIHM) has attracted attention because of its simple but powerful three-dimensional (3D) imaging capability. To improve the spatial resolution, 3D image reconstruction algorithms use numerical magnification, which generates distortions in the generated images. We propose a method to overcome this problem by using the simple relation between the object and image positions in 3D space. Several holograms were taken while translating a resolution target at different axial positions by a motorized stage. We demonstrated the effectiveness of our method by reconstructing the 3D positions of 3-MUm-diameter polymer beads on a tilted slide glass from a single measured hologram. PMID- 29041486 TI - Edge smoothness enhancement in DMD scanning lithography system based on a wobulation technique. AB - The resolution of digital micro-mirror device (DMD) scanning lithography is limited in the transverse direction (the scanning direction is vertical) as a result of the compacted size of the DMD micro-mirror and the low magnification of the projection lens. Above-stated restrictions lead to an unsatisfactory saw tooth edge (size ~one DMD pixel) after the lithography process within all directions except for the scanning orientation. In order to smooth the edge, an optimized sub-pattern construction method, described as the combination of wobulation techniques and the continuous scanning lithography process, is proposed. Afterward, lithography experiments were implemented by introducing the wobulation techniques within the DMD scanning lithography system. The experimental results show that the saw-tooth edge is reduced to nearly 0.5 pixel size after 1/2 pixel dislocation superposition exposure, and is even scaled down to less than 0.1 pixel after 1/4 pixel dislocation superposition exposure. At this point, the edge of the lithography pattern is appropriately smoothed. The effectiveness of the above-mentioned method that improves the edge smoothness of the lithography pattern is demonstrated. PMID- 29041488 TI - 12 J, 10 Hz diode-pumped Nd:YAG distributed active mirror amplifier chain with ASE suppression. AB - Experimental amplification of 10-ns pulses to an energy of 12.2 J at the repetition rate of 1-10 Hz is reported from a diode-pumped room-temperature distributed active mirror amplifier chain (DAMAC) based on Nd:YAG slabs. Efficient power scaling at the optical-optical efficiency of 20.6% was achieved by suppressing the transverse parasitic oscillation with ASE absorbers. To the best of our knowledge, this is the first demonstration of a diode-pumped Nd:YAG active-mirror laser with nanosecond pulse energy beyond 10 joules. The verified DAMAC concept holds the promise of scaling the energy to a 50 J level and higher by adding 10-12 more pieces of active mirror in the chain. PMID- 29041489 TI - Novel dual-loop optoelectronic oscillator based on self-polarization stabilization technique. AB - A novel dual-loop optoelectronic oscillator (OEO) based on self-polarization stabilization technique has been experimentally demonstrated. The input light in each loop will retrace its path through a 45 degrees Faraday rotator and single mode fiber with different length after reflecting off a 45 degrees Faraday rotator mirror. By this way, the polarization state of the output signal is always rotated by 180 degrees from the polarization state of the input signal in each loop even if the round-trip fiber is perturbed by the mechanical vibration or temperature. Moreover, the required fiber length is cut in half due to the round-trip transmission in each path, resulting in higher system stability and more compacter structure. The experimental results show that in an intensity modulator (IM)-based OEO system, this scheme has better phase noise performance than the traditional polarization multiplexing method. Furthermore, to avoid the DC bias drifting problem of IM, a simple phase modulation to intensity modulation convertor by using a polarization-dependent phase modulator and a polarizer is proposed without the need of expensive optical filters or dispersive devices. Based on this scheme, a novel dual-loop OEO using phase modulator and self polarization-stabilization technique has been experimentally demonstrated. The phase noise of -114.1 dBc/Hz at 10 kHz away from the carrier (10 GHz) is achieved and the side mode suppression ratio is improved to 63 dB. PMID- 29041490 TI - Experimental demonstration of a 24-port packaged multi-microring network-on-chip in silicon photonic platform. AB - A 24-port packaged multi-microring optical network-on-chip has been tested for simultaneous co- and counter-propagating transmissions at the same wavelength at 10 Gbps. In the co-propagating scenario communications up to five hops with one interfering signal have been tested, together with transmissions impaired by up to three interfering signals. In the counter-propagating scenario the device performance has been investigated exploiting the ring resonators in both shared source and shared-destination configurations. The spectral characterization is in good agreement with the theoretical results. Bit-error-rate measurements indicate power penalties at BER=10-9 limited to (i) 0.5 dB in the co-propagating scenarios independently from the number of interfering transmissions, (ii) 0.8 dB in the counter-propagating scenario with shared-source configuration, and (iii) 2 dB in the counter-propagating scenario with shared-destination configuration. PMID- 29041491 TI - Abnormal chiral events in a semiconductor laser with coherent injection. AB - We study experimentally and theoretically the dynamics of a spatially extended (along the propagation direction) oscillatory medium with coherent forcing. We observe abnormally high events, responsible for a different statistics of intensity and pulse height, in a regime where solitons and roll patterns are unstable. We focus on the formation of these high-peak events and their connection to the phase dynamics. Each abnormal event can be associated with a change in the slope of the phase time trace. Furthermore, the coexistence of +/ 2pi phase rotations inside the cavity can be associated to the observation of abnormal events, similarly to recent predictions in bidimensional vortex turbulence. PMID- 29041492 TI - Compact high-efficiency perfectly-vertical grating coupler on silicon at O-band. AB - A compact, high-efficiency grating coupler is demonstrated for interfacing a silicon waveguide and a perfectly-vertical fiber at O-band. The grating lies on a tilted silicon membrane for minimizing the reflections. Circular grating lines are adopted to shorten the overall device length to about 60MUm. 57% peak coupling efficiency and >28nm 1-dB coupling bandwidth are obtained experimentally. Back reflections of 1% to the silicon waveguide and the single mode fiber are theoretically estimated. The processing flow to realize the proposed structure is discussed in detail. The fabrication control over the tilted angle of the silicon membrane is investigated. The approach by applying an oxide cladding to improve the stability of the membrane is also introduced. The present grating coupler is compatible to common fabrication processes for silicon photonic chips. PMID- 29041493 TI - Flexible, all-dielectric metasurface fabricated via nanosphere lithography and its applications in sensing. AB - In this letter, we report a flexible, all-dielectric metasurface fabricated via nanosphere lithography (NSL) and demonstrate its potentials in sensing applications. Regularly arrayed Si cylinders with hexagonal lattice fabricated on polyethylene terephthalate (PET) flexible substrate are exploited to detect applied strain and surface dielectric environment by measuring transmission spectra. Further numerical simulations coincide with experimental observations. The transmission peak can be attributed to coupled magnetic Mie resonance between close-packed Si cylinders. Such Mie resonance based sensor with high flexibility offers an alternative approach towards detecting surrounding variations besides traditional plasmon resonance based sensors, and provides more choices for designing photonic devices operating in the optical regime. PMID- 29041494 TI - Secure multiple access for indoor optical wireless communications with time-slot coding and chaotic phase. AB - In this paper, we report a novel mechanism to simultaneously provide secure connections for multiple users in indoor optical wireless communication systems by employing the time-slot coding scheme together with chaotic phase sequence. The chaotic phase sequence is generated according to the logistic map and applied to each symbol to secure the transmission. Proof-of-concept experiments are carried out for multiple system capacities based on both 4-QAM and 16-QAM modulation formats, i.e. 1.25 Gb/s, 2 Gb/s and 2.5 Gb/s for 4-QAM, and 2.5 Gb/s, 3.33 Gb/s and 4 Gb/s for 16-QAM. Experimental results show that in all cases the added chaotic phase does not degrade the legitimate user's signal quality while the illegal user cannot detect the signal without the key. PMID- 29041495 TI - Dual-band dechirping LFMCW radar receiver with high image rejection using microwave photonic I/Q mixer. AB - In this paper, a photonics-based dual-band linear frequency-modulated continuous wave (LFMCW) radar receiver is proposed. The system core is a microwave photonic in-phase and quadrature (I/Q) mixer, whose inherent large bandwidth, high I/Q balance and favorable uniformity enable the receiver to operate over an extremely wide frequency range. An integrated dual-band waveform offers the possibility of independent detection, allowing the sharing of hardware resources and joint dechirp processing of dual bands. In the proof-of-concept experiment, the distance measurements of S- and C-bands are implemented, with a high and uniform image rejection exceeding 28 and 30 dB, respectively. The image rejections of the two bands can be further improved to 43 and 41 dB at least by digital signal processing (DSP). The proposed photonic-assisted receiver is thus able to simplify the architecture and improve performance for the multispectral sensing application. PMID- 29041496 TI - Demonstration of an all-optical feed-forward delay line buffer using the quadratic Stark effect and two-photon absorption in an SOA. AB - We have inserted into an unbiased semiconductor optical amplifier (SOA) a powerful control beam, with photon energy slightly smaller than that of the band gap of its active region, for exciting two-photon absorption and the quadratic Stark effect. For the available SOA, we estimated these phenomena generated a nonlinear absorption coefficient beta= -865 cm/GW and induced an appreciable birefringence inside the amplifier waveguide, which significantly modified the polarization-state of a probe beam. Based on these effects, we have experimentally demonstrated the operation of an all-optical buffer, using an 80 Gb/s optical pulse comb, as well as an unbiased SOA, which was therefore, devoid of amplified spontaneous emission and pattern effects. PMID- 29041497 TI - Anisotropic light propagation in bovine muscle tissue depends on the initial fiber orientation, muscle type and wavelength. AB - The effects of fiber orientation on vis/NIR light propagation were studied in three bovine muscles: biceps brachii, brachialis and soleus. Broadband light was focused onto the sample and the diffuse reflectance spot was captured using a hyperspectral camera (470-1620 nm), after which rhombuses were fitted to equi intensity points. In samples with fibers running parallel to the measurement surface, the rhombus' major axis was oriented perpendicular to the fiber direction close to the point of illumination. However, at larger distances from the illumination spot, the major axis orientation aligned with the fiber direction. This phenomenon was found to be muscle dependent. Furthermore, the rhombus orientation was highly dependent on the sample positioning underneath the camera, especially when the muscle fibers ran parallel to the measurement surface. The bias parameter, indicating the deviation from a circular shape, was higher for samples with the fibers running parallel to the measurement surface. Moreover, clear effects of wavelength and distance from the illumination point on this parameter were observed. These results show the importance of fiber orientation when considering optical techniques for measurements on anisotropic, fibrous tissues. Moreover, the prediction of muscle fiber orientation seemed feasible, which can be of interest to the meat industry. PMID- 29041498 TI - Manipulating electromagnetic wave propagating non-reciprocally by a chain of ferrite rods. AB - We demonstrated that non-reciprocal wave propagation could be manipulated by a magnetic rod chain under bias DC magnetic fields. Made of ferrite material YIG and designed working in the microwave X-band, the rod chain exhibited almost a total reflection when the incident wave obliquely impinged on the rod chain, but exhibited nearly a total transmission when the wave reversed its propagation direction. The non-reciprocal wave propagation was due to the non-reciprocal diffraction of the rod chain for the orders 0 and +/- 1. Further, the non reciprocal wave propagation was directly observed by using the field mapping technique. The unique non-reciprocal wave property of the magnetic rod chain provides a new way to control the flow of EM waves. PMID- 29041499 TI - Interactions between self-accelerating beams in photorefractive media. AB - We investigate interactions between in-phase or out-of-phase Airy beams and nonlinear accelerating beams in photorefractive crystals by means of direct numerical simulations. Since self-accelerating beams possess infinite energy, we evaluated the propagation of two shifted counter beams by truncating the oscillating tails. The numerical results show that the external bias electric field has a profound effect on the propagation dynamics and the solitons shed from the Airy beam. We also found that during interactions between two nonlinear accelerating beams, single solitons, soliton pairs, and bound breathing solitons were produced. When the nonlinear accelerating beam collides with a soliton beam, the main lobe continues accelerating while the soliton intensity fluctuates with the lobes. PMID- 29041500 TI - 1.5MUm, mode-hop-free full C-band wavelength tunable laser diode with a linewidth of 8 kHz and a RIN of -130 dB/Hz and its extension to the L-band. AB - We demonstrate a narrow-linewidth, low-intensity noise, widely wavelength-tunable LD for which we adopted a long external cavity configuration (ECLD) with a tunable optical filter. By employing a simultaneous tuning circuit between the optical filter and the Fabry-Perot mode caused by the external cavity, the oscillation wavelength was successfully tuned over the full C-band without mode hopping. The tunable optical filter bandwidth was 0.55 nm (1530~1570 nm). We achieved a linewidth of less than 8 kHz obtained with a delayed self-heterodyne method. On the other hand, the linewidth estimated from the white noise level of the optical frequency modulation noise power spectrum of the laser output was as narrow as 314 Hz. A relative intensity noise (RIN) below -130 dB/Hz was simultaneously achieved over the C-band range. With the same configuration except for an optical filter with a filter bandwidth of 0.6 nm for L-band operation (1570~1610 nm), we also realized a full L-band wavelength tunable ECLD with a linewidth of less than 7.7 kHz and a RIN of below -126 dB/Hz. PMID- 29041501 TI - Measurement of spectacle lenses using wavefront aberration in real view condition. AB - A wavefront aberration analysis method for measuring spectacle lenses in real view condition is proposed and verified using experimental apparatus based on the eye-rotation model. Two strategies-feedback positioning and posture adjustment of incident beams and Hartmann-Shack wavefront-aberration sensor calibration at each measurement subarea-are applied to improve measurement accuracy. By simulating the real-view condition, wavefront aberration and user power on the vertex sphere can be obtained. Comparison experiments demonstrate the validity and accuracy of the proposed method and experimental apparatus. Freeform progressive addition lenses are also measured and the results analyzed. The findings provide a possible approach for optimizing the design of spectacle lenses and evaluating their manufacturing and imaging quality. PMID- 29041502 TI - Plasmon-enhanced LT-GaAs/AlAs heterostructure photoconductive antennas for sub bandgap terahertz generation. AB - Photocurrent generation in low-temperature-grown GaAs (LT-GaAs) has been significantly improved by growing a thin AlAs isolation layer between the LT-GaAs layer and semi-insulating (SI)-GaAs substrate. The AlAs layer allows greater arsenic incorporation into the LT-GaAs layer, prevents current diffusion into the GaAs substrate, and provides optical back-reflection that enhances below bandgap terahertz generation. Our plasmon-enhanced LT-GaAs/AlAs photoconductive antennas provide 4.5 THz bandwidth and 75 dB signal-to-noise ratio (SNR) under 50 mW of 1570 nm excitation, whereas the structure without the AlAs layer gives 3 THz bandwidth, 65 dB SNR for the same conditions. PMID- 29041503 TI - Dual-band and polarization-independent infrared absorber based on two-dimensional black phosphorus metamaterials. AB - Two-dimensional (2D) black phosphorus (BP) with direct band gap, bridges the characteristics of graphene with a zero or near-zero band gap and transition metal dichalcogenides with a wide band gap. In the infrared (IR) regime, 2D BP materials can attenuate electromagnetic energy due to losses derived from its surface conductivity. This paper proposes an IR absorber based on 2D BP metamaterials. It consists of multi-layer BP-based nano-ribbon pairs, each formed by two orthogonally stacked nano-ribbons. The multi-layer BP metamaterials and bottom gold mirror together form a Fabry-Perot resonator that could completely inhibit light transmission to create strong absorption through the BP metamaterials. Unlike previously reported BP metamaterial absorbers, this new structure can operate at two frequency bands with absorption > 90% in each owning to the first-order and second-order Fabry-Perot resonant frequencies. It is also polarization independent due to the fourfold rotational structural symmetry. To our best knowledge, this is the first report on using BP metamaterials in an absorber that operates independent of polarization and in dual bands. PMID- 29041504 TI - Tunable silicon-based all-dielectric metamaterials with strontium titanate thin film in terahertz range. AB - Silicon-based all-dielectric metamaterials (SAMs), with advantages like low loss and simple structure, are attracting more and more attention. However, SAMs usually suffer from narrow bandwidth and low tunability, and thereby their applications are seriously impeded. In this work, we propose and experimentally demonstrate a tunable SAMs in terahertz (THz) ranges by covering the SAMs with a layer of active medium, strontium titanate (STO). It shows that the THz responses of SAMs can be thermally tuned due to the temperature-dependent permittivity of STO. This work provides a convenient route to tunable SAMs from THz to optical ranges. PMID- 29041505 TI - Dual-beam manually-actuated distortion-corrected imaging (DMDI) with micromotor catheters. AB - We present a new paradigm for performing two-dimensional scanning called dual beam manually-actuated distortion-corrected imaging (DMDI). DMDI operates by imaging the same object with two spatially-separated beams that are being mechanically scanned rapidly in one dimension with slower manual actuation along a second dimension. Registration of common features between the two imaging channels allows remapping of the images to correct for distortions due to manual actuation. We demonstrate DMDI using a 4.7 mm OD rotationally scanning dual-beam micromotor catheter (DBMC). The DBMC requires a simple, one-time calibration of the beam paths by imaging a patterned phantom. DMDI allows for distortion correction of non-uniform axial speed and rotational motion of the DBMC. We show the utility of this technique by demonstrating en face OCT image distortion correction of a manually-scanned checkerboard phantom and fingerprint scan. PMID- 29041506 TI - Divide and update: towards single-shot object and probe retrieval for near-field holography. AB - We present a phase reconstruction scheme for X-ray near-field holographic imaging based on a separability constraint for probe and object. In order to achieve this, we have devised an algorithm which requires only two measurements - with and without an object in the beam. This scheme is advantageous if the standard flat-field correction fails and a full ptychographic dataset can not be acquired, since either object or probe are dynamic. The scheme is validated by numerical simulations and by a proof-of-concept experiment using highly focused undulator radiation of the beamline ID16a of the European Synchrotron Radiation Facility (ESRF). PMID- 29041507 TI - Polarization- and wavelength-independent SBS-based filters for high resolution optical spectrum measurement. AB - A polarization-independent narrow passband optical filter with a FWHM bandwidth of ~10 MHz based on stimulated Brillouin scattering (SBS) effect is proposed and experimentally demonstrated. By optimizing the parameters of a depolarizer consisting of a power-splitting Mach-Zehnder interferometer (MZI) structure, degree of polarization (DOP) of the pump source can be reduced to less than 5%. Consequently frequency response of the SBS-based filter remains almost unchanged when the state of polarization (SOP) of the input signal varies and the corresponding polarization-dependent gain (PDG) is less than 1 dB. And the experimental results also indicate that the proposed filter can realize the wavelength-independent operation over a range of ~30 nm. Furthermore, high resolution optical spectrum measurement utilizing this novel filter is investigated. For an input signal with a frequency interval of 30 MHz in arbitrary SOP, spectral details can be clearly observed and the power stability of the measured spectra can be improved from 3~5 dB to less than 0.5 dB, which benefitting from the polarization independent operation of the forementioned filter. Moreover, considering the resolution degradation of the measured spectra induced by the frequency shift in the depolarizer, a sweep speed of 5 nm/s for the pump source and a delayed fiber length of 2000 m in the MZI should be used to guarantee the desired high spectral resolution of ~10 MHz. PMID- 29041508 TI - Mask aligner lithography using laser illumination for versatile pattern generation. AB - Mask aligner lithography is a well-established back-end fabrication process in microlithography. Within the last few years, resolution enhancement techniques have been transferred and adapted from projection lithography to further develop mask aligner lithography, especially concerning achievable resolution. Nonetheless, current technology using a mercury vapor lamp as a light source has reached its limits, e.g. for high-resolution pattering. Within this paper, we present the extension of the existing mask aligner illumination system by replacing the mercury vapor lamp with a solid-state laser. Full-field mask aligner lithography is guaranteed by a rotating diffuser expanding the laser beam and minimizing undesired speckle effects. An additional integrated galvanometer scanner allows a flexible choice of arbitrary angular spectrum distributions of the photomask illumination. We show versatile results like simple binary patterns of squares and triangles, as well as a more complex lateral shape like a blazed grating. PMID- 29041509 TI - Measurement system and model for simultaneously measuring 6DOF geometric errors. AB - A measurement system to simultaneously measure six degree-of-freedom (6DOF) geometric errors is proposed. The measurement method is based on a combination of mono-frequency laser interferometry and laser fiber collimation. A simpler and more integrated optical configuration is designed. To compensate for the measurement errors introduced by error crosstalk, element fabrication error, laser beam drift, and nonparallelism of two measurement beam, a unified measurement model, which can improve the measurement accuracy, is deduced and established using the ray-tracing method. A numerical simulation using the optical design software Zemax is conducted, and the results verify the correctness of the model. Several experiments are performed to demonstrate the feasibility and effectiveness of the proposed system and measurement model. PMID- 29041510 TI - Three-dimensional flame measurements with large field angle. AB - A system for three-dimensional computed tomography of chemiluminescence was developed to measure flames over a large field angle. Nine gradient-index rods, with a 9 * 1 endoscope and only one camera are used. Its large field of view, simplicity, and low cost make it attractive for inner flow field diagnostics. To study the bokeh effect caused by the imaging system on reconstruction solutions, fluorescent beads were used to determine the blurring function. Experiments using a steady diffusion flame were conducted to validate the system. Three models, namely the clear-imaging, out-of-focus imaging, and deconvolution models, were utilized. Taking the bokeh effect into account, the results suggest that based on run-times the deconvolution model provides the best reconstruction accuracy without increasing computational time. PMID- 29041511 TI - Stable and wavelength- selectable C + L band fiber ring laser with single longitudinal-mode by utilizing C-band erbium fiber amplifier. AB - In the investigation, we propose and demonstrate a wavelength-selectable C- plus L-band erbium-doped fiber (EDF) ring laser with single-longitudinal-mode (SLM) output. Here, a C-band erbium-doped fiber amplifier (EDFA) is utilized to serve as gain medium together with proposed multi-cross-ring (MCR) scheme to extend the wavelength tunability to L-band range. Besides, the MCR can also suppress the multi-longitudinal-mode (MLM) significantly. Therefore, the measured output power and optical signal to noise ratio (OSNR) of each lasing wavelength are between 10.1 and -2.7 dBm, and 26.4 and 35.0 dB/0.06 nm, respectively in the wavelength range from 1530.0 to 1584.0 nm. In addition, the output stabilities of power and wavelength in the proposed EDF MCR laser have been also analyzed experimentally. PMID- 29041512 TI - Self-selection mechanism of Fabry-Perot micro/nanoscale wire cavity for single mode lasing. AB - Developing micro/nanoscale wire (MNW) lasers with single-mode operation is critical for realizing their practical applications, however, most reported MNW lasers operate in multi-modes, because lacking of mode selection mechanisms. In this work, a simple and direct way to realize stable, single-mode MNW laser without complicated micro/nano-manipulation was demonstrated. We have found and proved that the position of the active region plays a key role in determining the lasing mode of MNW lasers, which can be used to realize single-mode lasing in MNWs. We propose self-selection mechanism of Fabry-Perot MNW cavity for single mode lasing due to location-dependent field distribution in MNWs, which is characterized by suppressing the multiple longitudinal mode oscillation of the MNW laser. GaN MNW lasers with different lengths and diameters have been fabricated, verifying the self-selection mechanism of the cavity experimentally. Moreover, we demonstrate the single-mode, room temperature optically pumped MNW laser with an extremely low threshold (~40 kW/cm2) in condition of appropriate cavity length, opening an opportunity to realize stable single-mode, low threshold MNW laser for easy integration in constructing micro/nanoscale photonic and optoelectronic circuits and devices. PMID- 29041513 TI - 946 nm Nd: YAG double Q-switched laser based on monolayer WSe2 saturable absorber. AB - In this paper, we report a 946nm double Q-switched laser side pumped by an 808-nm pulse laser diode (LD). A layered tungsten diselenide (WSe2) saturable absorber (SA) together with an MgO doped LiNbO3 electro-optic (EO) modulator is applied to double Q-switch the Nd: YAG laser, producing trains of nanosecond-duration pulses with 500 Hz repetition rate. Such WSe2 saturable absorbers are fabricated by chemical vapor deposition (CVD) in a hot wall chamber and then embedded into a resonant mirror. The achieved pulse energy of double Q-switched laser at 946 nm is approximately 2.63 mJ with 10.8 ns pulse width and the peak power is round 244 kW, corresponding to the beam quality factors of M2x = 3.846,M2y = 3.861. Monolayer WSe2 nanosheets applied in the experiment would be a promising SA for passive Q-switching operation. PMID- 29041514 TI - Nonlinear polarization instability in cubic-quintic plasmonic nanocomposites. AB - We report a study of the nonlinear birefringence induced in a metal-dielectric nanocomposite due to the contributions of third- and fifth-order optical nonlinearities. A theoretical model describing the evolution of the light polarization state of a confined laser beam propagating through the nonlinear medium is developed with basis on a pair of coupled dissipative cubic-quintic nonlinear differential equations related to the two orthogonal polarizations of the optical field. As a proof-of-principle experiment we demonstrate the control of the light beam polarization in a silver-nanocolloid by changing the silver nanoparticles volume fraction, f, and the light intensity. A large nonlinear phase-shift (~20pi) was observed using a 9 cm long capillary filled with silver nanoparticles suspended in carbon disulfide. Experiments using colloids with 1.0*10-5<=f<=4.5*10-5 and maximum light intensities of tens of MW/cm2 are performed. In addition, we demonstrate that the modulation instability is highly sensitive to the quintic nonlinearity contribution performed showing good agreement with the experimental results. PMID- 29041515 TI - Quasi-phase-matching of high-order harmonics in plasma plumes: theory and experiment. AB - We theoretically analyze the phase-matching of high-order harmonic generation (HHG) in multi-jet plasmas and find the harmonic orders for which the quasi-phase matching (QPM) is achieved depending on the parameters of the plasma and the generating beam. HHG by single- and two-color generating fields is analyzed. The QMP is studied experimentally for silver, indium and manganese plasmas using near IR and mid-IR laser fields. The theory is validated by comparison with our experimental observations, as well as published experimental data. In particular, the plasma densities and the harmonic phase coefficients reconstructed from the observed harmonic spectra using our theory agree with the corresponding parameters found using other methods. Our theory allows defining the plasma jet and the generating field properties, which can maximize the HHG efficiency due to QPM. PMID- 29041516 TI - Shortcut to adiabatic passage in a three-level system via a chosen path and its application in a complicated system. AB - We construct a shortcut to an adiabatic passage in a three-level system by choosing a dressed state acting as an evolutive path. Two designed auxiliary pulses are added into the original pulses to eliminate the couplings between the chosen evolutive-path state and the other two dressed states. The same target state as one gotten by adiabatic passage can be rapidly obtained, and the population of the lossy intermediate state can be controlled by setting proper parameters. Furthermore, as an example, we use this method in the adiabatic passage scheme [Opt. Express20, 014547 (2012)], a complicated cavity quantum electrodynamics system, to successfully accelerate the generation of the three dimensional entanglement between a single atom and a Bose-Einstein condensate. PMID- 29041517 TI - Phase demodulation of interferometric fiber sensor based on fast Fourier analysis. AB - A demodulation method for interferometric fiber sensors (IFSs) is proposed in this article. The phase variation induced by the measurands can be estimated by calculating the Fourier phase at the intrinsic spatial frequencies of the fiber sensor. Theoretical analysis of the demodulation method is discussed in detail. Numerical simulations are put forward to demonstrate the consistency of the demodulation results under different wavelength sampling interval and noise level, showing a better stability compared with the conventional peak wavelength tracking technique. The proposed method is also experimentally demonstrated by an inline multimode interferometer based on a single-mode fiber (SMF) offset splicing structure. Experimental results indicate that the phase response of different cladding modes can be analyzed simultaneously. Simultaneous measurement of strain and temperature is realized in our confirmatory experiment by analyzing the phase sensitivities of two selected cladding modes. PMID- 29041518 TI - Precision improvement of surface plasmon resonance sensors based on weak-value amplification. AB - In this paper, a method to improve the precision of prism-coupler-based surface plasmon resonance (SPR) sensors using weak-value amplification (WVA) is presented. A general theory model to describe the post-selected SPR sensing system is established and the polarization-dependent amplitude and phase evolutions induced by the SPR are regarded as the weak interactions in the WVA formalism. As a consequence of WVA, the detected signal can be enhanced with respect to the technical noise which is dependent on the post-selected light intensity. The precision of our method reaches 2.9 * 10-7RIU, which is improved nearly one order of magnitude compared to the conventional sensing technique. PMID- 29041519 TI - Broadband two-dimensional electronic spectroscopy in an actively phase stabilized pump-probe configuration. AB - We introduce a novel configuration for two-dimensional electronic spectroscopy (2DES) that combines the partially collinear pump-probe geometry with active phase locking. We demonstrate the method on a solution sample of CdSe/ZnS nanocrystals by employing two non-collinear optical parametric amplifiers as the pump and probe sources. The two collinear pump pulse replicas are created using a Mach-Zehnder interferometer phase stabilized by active feedback electronics. Taking the advantage of separated paths of the two pump pulses in the interferometer, we improve the signal-to-noise ratio with double modulation of the individual pump beams. In addition, a quartz wedge pair manipulates the phase difference between the two pump pulses, enabling the recovery of the rephasing and non-rephasing signals. Our setup integrates many advantages of available 2DES techniques with robust phase stabilization, ultrafast time resolution, two-color operation, long delay scan, individual polarization manipulation and the ease of implementation. PMID- 29041520 TI - Large area optical mapping of surface contact angle. AB - Top-down contact angle measurements have been validated and confirmed to be as good if not more reliable than side-based measurements. A range of samples, including industrially relevant materials for roofing and printing, has been compared. Using the top-down approach, mapping in both 1-D and 2-D has been demonstrated. The method was applied to study the change in contact angle as a function of change in silver (Ag) nanoparticle size controlled by thermal evaporation. Large area mapping reveals good uniformity for commercial Aspen paper coated with black laser printer ink. A demonstration of the forensic and chemical analysis potential in 2-D is shown by uncovering the hidden CsF initials made with mineral oil on the coated Aspen paper. The method promises to revolutionize nanoscale characterization and industrial monitoring as well as chemical analyses by allowing rapid contact angle measurements over large areas or large numbers of samples in ways and times that have not been possible before. PMID- 29041521 TI - High-acceptance versatile microfocus module based on elliptical Fresnel zone plates for small-angle X-ray scattering. AB - High-efficiency microfocusing of multi-keV X-rays at synchrotron sources is highly profitable for spatially resolved structural analysis of many kinds. Because radiation from synchrotron sources is typically elongated along the horizontal dimension, generating a microbeam that is isotropic in size requires a carefully designed optics system. Here we report on using a combination of a horizontally tunable slit downstream of the undulator source with elliptical diffractive Fresnel zone plates. We demonstrate the arrangement in context of small-angle X-ray scattering experiments, obtaining a microbeam of 2.2 MUm * 1.8 MUm (X * Y) with a flux of 1.2 * 1010 photons/s at an energy of 11.2 keV at the sample position. PMID- 29041522 TI - OAM interferometry: the detection of the rotational Doppler shift. AB - In this paper, we propose a new type of rotational Doppler shift measurement based on the OAM of light which is capable of measuring the rotation of a point source in the plane orthogonal to the observer line of sight. By analysing the correlations between OAM states of light emitted by rotating sources, the rotational Doppler shift, and hence the rate of rotation, can be measured. We demonstrate that an OAM interferometer capable of extracting the rotational Doppler shift from OAM correlations can be constructed from a standard OAM modesorter combined with a phase filter. PMID- 29041523 TI - Generation of 300 nm bandwidth 0.5 mJ pulses near 1 MUm in a single stage gas filled hollow core fiber. AB - A simple and compact spectral-broadening system is presented that is based on a single-stage statically pressurized Ar filled hollow core fiber. By optimizing the inner diameter of the hollow core fiber, a bandwidth of 300 nm is obtained. This is the broadest bandwidth known to date with millijoule level energy near the 1-MUm wavelength by a single stage gas filled hollow core fiber. PMID- 29041524 TI - Mode-locking evolution in ring fiber lasers with tunable repetition rate. AB - We have applied a simple approach to analyze behavior of the harmonically mode locked fiber laser incorporating an adjustable Mach-Zehnder interferometer (MZI). Our model is able to describe key features of the laser outputs and explore limitations of physical mechanisms responsible for laser operation at different pulse repetition rates tuned over a whole GHz range. At low repetition rates the laser operates as a harmonically mode-locked soliton laser triggered by a fast saturable absorber. At high repetition rates the laser mode-locking occurs due to dissipative four-wave mixing seeded by MZI and gain spectrum filtering. However, the laser stability in this regime is rather low due to poor mode selectivity provided by MZI that is able to support the desired laser operation just near the lasing threshold. The use of a double MZI instead of a single MZI could improve the laser stability and extends the range of the laser tunability. The model predicts a gap between two repetitive rate ranges where pulse train generation is not supported. PMID- 29041525 TI - Metallic planar lens constructed by double-turn waveguides for sub-diffraction limit focusing. AB - We present a conceptual demonstration of a metallic planar lens composed of double-turn waveguides for sub-diffraction-limit focusing. The phase delay of a single double-turn waveguide dependent on its structural parameters is investigated by employing the finite-difference time-domain (FDTD) numerical method. The design utilizes the surface plasmon polaritons (SPPs) that propagate along the metal-insulator-metal (MIM) waveguides to achieve the desired spatial phase modulation in the transmitted field. The simulated focal length achieved is in positive agreement with the design and the full-width at half-maximum (FWHM) is 0.446lambda, well beyond the diffraction limit. This superfocusing performance can be maintained very well under the slight change of film thickness and slit width, showing the robustness of the design. The maximum aspect ratio of nanoslits constructing the proposed lens is 3.33, which is far less than the previous reports, alleviating the later fabrication. The metallic planar lens as demonstrated will find its applications in such fields as lithography, integrated optics, and super-resolution imaging. PMID- 29041526 TI - Scattering pulse-induced temporal contrast degradation in chirped-pulse amplification lasers. AB - Herein, a theory for modeling the problem of scattering pulse-induced temporal contrast degradation in chirped-pulse amplification (CPA) lasers is introduced. Using this model, the temporal evolutions of the scattering and signal pulses were simulated, the temporal contrasts for different cases were compared, and finally the theoretical prediction was verified by an experimental demonstration. The result shows that the picosecond and the nanosecond temporal contrast is mainly determined by the scattering pulses generated in the stretcher and the compressor, respectively. In addition, the B-integral accumulation will further degrade the temporal contrast, especially the picosecond temporal contrast. We believe it is helpful for solving the problem of the picosecond pedestal contrast (i.e., noise limit). With reference to these results, some suggestions for the temporal contrast improvement are presented. PMID- 29041527 TI - Polarization independent optical injection locking for carrier recovery in optical communication systems. AB - An optical injection locking (IL) system that is independent of the incoming signal's polarization is demonstrated for carrier recovery in coherent optical communication systems. A sub-system that enables polarization independence is discussed and experimentally verified. The system is tested over a 20-km test field link using a broad-linewidth laser (40 MHz), and shows the suppression of phase noise when using the carrier recovered by injection locking as the local oscillator. PMID- 29041528 TI - 1.024 Tb/s wavelength conversion in a silicon waveguide with reverse-biased p-i-n junction. AB - We experimentally show an all-optical wavelength conversion of 8 * 32-GBd single polarization 16QAM signals using a silicon nano-rib waveguide. The application of reverse biasing of the p-i-n junction of the waveguide allows a conversion efficiency of -8.5 dB with a measured 3-dB optical bandwidth of about 40 nm. Using digital coherent reception, it is shown that the receiver optical signal-to noise ratio penalty, at a bit-error ratio of 1 * 10-3, of the wavelength converted signals over all eight channels was less than 0.6 dB with reference to their respective back-to-back signal channels. PMID- 29041529 TI - Propagation effects in the generation process of high-order vortex harmonics. AB - We numerically study the propagation of a Laguerre-Gaussian beam through polar molecular media via the exact solution of full-wave Maxwell-Bloch equations where the rotating-wave and slowly-varying-envelope approximations are not included. It is found that beyond the coexistence of odd-order and even-order vortex harmonics due to inversion asymmetry of the system, the light propagation effect results in the intensity enhancement of a high-order vortex harmonics. Moreover, the orbital momentum successfully transfers from the fundamental laser driver to the vortex harmonics which topological charger number is directly proportional to its order. PMID- 29041530 TI - Experimental demonstration of fronthaul flexibility for enhanced CoMP service in 5G radio and optical access networks. AB - The RAN architecture towards mobile 5G and beyond is undergoing a fundamental evolution, which brings optics into the radio world. Fronthaul is a new segment that leverages on the advantages of optical communication for RAN transport. However, the current fronthaul architecture shows a fixed connection between an RRH and a BBU, which leads to inefficient resource utilization. In this paper, we focus on the fronthaul flexibility that allows "any-RRH to any-BBU" connection. In particular, we consider a CoMP service and discuss how flexible optical fronthaul helps to improve its performance. To achieve this goal, we propose an SDN-enabled orchestration for coordinating radio and optical access networks. Under this unified control manner, the agile RRH-BBU mapping can be reached through lightpath reconfiguration. To further verify the benefits of flexibility, we experiment the CoMP service in the cloud radio over flexible optical fronthaul (CRoFlex) testbed. Experimental results demonstrate the proposed SDN-enabled flexible optical fronthaul can improve the CoMP performance by optimizing the RRH BBU mapping. PMID- 29041531 TI - Ultrawideband optical cancellation of RF interference with phase change. AB - This work proposes a novel approach to perform optical cancellation of RF interference with any constant phase change, based on polarization-modulator based microwave photonic phase shifters. Preliminary results validate the proposed scheme and achieve a 30-dB cancellation depth over 9.5 GHz. The frequency independent microwave photonic phase shifters also allow for wide frequency range tunability towards 30 GHz, and recovery of a signal from a wideband interferer. The experimental results are limited by the imperfection of the electrical components. The proposed cancellation scheme might not only be applicable for WLANs based on standards such as IEEE 802.11ad and 802.11aj, but also provide a straight forward solution to the multipath effect. PMID- 29041532 TI - Polarized fiber optical parametric amplification in randomly birefringent fibers: erratum. AB - We correct the value of coefficient Gamma presented in Opt. Express23, 32747 (2015)10.1364/OE.23.032747, which describes the relationship between the mean output degree of polarization and the average gain of fiber optical parametric amplifiers. PMID- 29041533 TI - Energy-efficient multidimensional Hellinger modulation for SPAD-based optical wireless communications. AB - Recently, the single photon avalanche diode optical wireless communication (SPAD OWC) has attracted much attention due to its potential underwater applications. For such system, the channel noise is additive Poisson noise (APN) rather than the commonly encountered additive white Gaussian noise (AWGN) and the corresponding maximum likelihood (ML) detection is hard to provide a useful insight into energy-efficient signal design. By using the previously proposed Hellinger distance design criterion, we design an energy-efficient multi dimensional constellation within the nonnegative integer set by minimizing the average optical power for a fixed minimum Hellinger distance. Comprehensive simulations indicate that our designed constellation can substantially outperform the currently available pulse amplitude modulation (PAM) and squared PAM for SPAD OWC systems. PMID- 29041534 TI - Application of third-order correlation between intensity fluctuations to determination of scattering potential of quasi-homogeneous medium. AB - Within the first-order Born approximation, we introduce the third-order correlation between intensity fluctuation (CIF) of light scattered from a quasi homogeneous (QH) medium. By utilizing the Gaussian moment theorem for describing the scattering potential statistics, analytic forms are derived for the third order, normalized CIF and variance of intensity fluctuations (VIF) of the far zone scattered field. It is found that the normalized CIF of the scattered field is proportional to the product of Fourier transforms of the strengths of the scattering potential, while the variance of intensity fluctuations (VIF) of the scattered field is the cube of the Fourier transform of the normalized correlation coefficient (NCC) of the scattering potential. Based on the derived formulas, we show that the correlation function of the scattering potential of the medium can be determined from the scattering equations where the third-order CIF properties of the scattered field must be known in advance. PMID- 29041535 TI - Mitigating the effects of the gain-dependence of the Brillouin line-shape on dynamic BOTDA sensing methods. AB - It has been recently shown that in stimulated Brillouin amplification (pulsed pump & CW probe) the line-shape of the normalized logarithmic Brillouin Gain Spectrum (BGS) broadens with increasing gain. Most pronounced for short pump pulses, a linewidth increase of ~3 MHz (~1.5 MHz) per dB of additional gain was observed for a pump pulse width of 15 ns (30 ns), respectively. This gain dependency of the shape of the BGS compromises the accuracy of the otherwise attractive, highly dynamic and distributed slope-assisted BOTDA techniques, where measurand-induced gain variations of a single probe, are converted to strain/temperature values through a calibration factor that depends on the line shape of the BGS. A previously developed technique with built-in compensation for Brillouin gain variations, namely: the Ratio Double Slope-Assisted BOTDA (RDSA BOTDA) method, where both slopes of the BGS are interrogated, fails to meet this new challenge of the gain-induced shape dependence of the BGS, resulting, for instance, in significant measurement errors of ~5% per dB of gain change for a 15 ns pump pulse. Here, we propose and demonstrate an extension of the RDSA-BOTDA method, which now offers immunity also to Brillouin gain-dependent line-shape variations. Requiring a prior characterization of the gain-induced line-shape dependency of the fiber and pump-pulse-width in use, this mitigation technique takes advantage of the fact that the sum of the measured logarithmic gains at judiciously chosen two fixed frequency points of the BGS can be used to determine the local peak gain, via a pre-established calibration curve. Based on the deduced correct peak gain, its associated BGS shape can now be used in the application of the previously introduced RDSA-BOTDA technique to obtain error free results, independent of the gain dependence of the line-shape. The proposed technique has been successfully put to test in an experiment, involving a RDSA BOTDA measurement of a fiber segment, vibrating at 50 Hz with a constant, peak-to peak amplitude of 640 microstrain. As the Brillouin gain was manually varied from 1 to 3.5 dB, classical data processing, based on a single gain value, predicted amplitudes which varied by as much as 90 microstrain, while the proposed mitigation technique produced the correct constant amplitude, regardless of the gain changes. This restored accuracy of the RDSA-BOTDA technique is of importance, especially for monitoring real-world dynamic scenarios, where high Brillouin gains, which often locally vary due to dynamically introduced losses, can successfully achieve fast gain-independent double-slope-assisted Brillouin measurements (many kHz's of sampling rates over hundreds of meters), with enhanced spatial resolution and signal to noise ratio. PMID- 29041536 TI - Nonlinear beam self-cleaning in a coupled cavity composite laser based on multimode fiber. AB - We study a coupled cavity laser configuration where a passively Q-switched Nd:YAG microchip laser is combined with an extended cavity, including a doped multimode fiber. For appropriate coupling levels with the extended cavity, we observed that beam self-cleaning was induced in the multimode fiber thanks to nonlinear modal coupling, leading to a quasi-single mode laser output. In the regime of beam self cleaning, laser pulse duration was reduced from 525 to 225 ps. We also observed a Q-switched mode-locked operation, where spatial self-cleaning was accompanied by far-detuned nonlinear frequency conversion in the active multimode fiber. PMID- 29041537 TI - Accurate and spectral efficient channel estimation using inter-block precoding and superimposed pilots in optical OFDM systems. AB - A new inter-block precoding-based channel estimation (CE) scheme is proposed and experimentally demonstrated in an optical OFDM system with a superimposed pilot (SP). The proposed inter-block precoding scheme targets on eliminating the statistical mean of the unknown data symbols, and thereby improves the performance of SP-aided CE. We investigate the impact that both the precoding matrix and SP have on the system performance, from which we obtain the optimum value of signal-to-pilot power ratio (SPR) as well as the block length. We show through simulations and experiments that the proposed CE scheme, in comparison with the conventional preamble based scheme, has the advantage of entailing a much smaller overhead size, while offering similar performance in terms of CE accuracy and bit-error ratio (BER) performances. Furthermore, the proposed precoding scheme has no limit to the design of SP, and thus is applicable for any periodic pilots. PMID- 29041538 TI - Optimal polarization modulation for orthogonal two-axis Lloyd's mirror interference lithography. AB - Polarization control is of vital importance in two-axis Lloyd's mirror interference lithography to achieve the preferred interference fringes. In this work, we first establish a three-dimensional polarization ray-tracing model to trace the evolution of polarization states of incident beams through the corner cube-like interferometer unit of an orthogonal two-axis Lloyd's mirror interferometer. With the established model, we then derive the optimal combination of initial polarization directions of the incident beams according to the orthogonality of polarization states and the contrast of interference fringes. The comparison between the simulated and experimental interference fringes obtained under different combinations of initial polarization states of incident beams verify the feasibility of the established model and the achieved optimal polarization modulation. PMID- 29041539 TI - Universal phase-only spatial light modulators. AB - Universal phase-only spatial light modulators (UP-SLMs) are proposed and demonstrated by simulation and experiment. UP-SLMs, which consist of unitarily coupled electrically controllable wave plates, convert the optically anisotropic properties of the paired two wave plates into an effective single isotropic phase plate and can be realized with electrically tunable birefringence materials such as uniaxial liquid crystals (LCs). The universal approaches are applicable to any uniaxial anisotropic materials based cells, any LC cell operation modes and any incident light polarization states. Further the UP-SLMs are experimentally demonstrated even with commercial LCD panels having low geometrical rotational symmetry. These UP-SLMs will play significant roles in wave optics, communications, information displays, digital holography, quantum optics and quantum information technology by harnessing their unique capacity of modulating the only phase of linearly, circularly, elliptically, azimuthally, radially and even randomly polarized light. PMID- 29041540 TI - Theoretical guideline for generation of an ultralong magnetization needle and a super-long conveyed spherical magnetization chain. AB - Considering an azimuthally polarized vortex beam with a Gaussian annulus as an incoming light, light induced magnetization fields for both a single high NA lens and a pair of high NA lenses are investigated theoretically. We deduce analytical formulas for the parameters of a magnetization needle and a magnetization chain when the angular width of the incident beam is far less than its central angular position. Through these analytical formulas, the properties of the magnetization needle and the magnetization chain are very clear and distinct. Compared with parameter optimizing to produce an ultralong magnetization needle with lateral sub-wavelength scale and a super-long spherical magnetization chain with three dimensional super resolution, the analytical method is direct and has a theoretical guideline. The validity of these formulas is proved, compared to numerical solutions. The present work regarding these super-resolution magnetization patterns is of great value in high density all-optical magnetic recording, atomic trapping as well as confocal and magnetic resonance microscopy. PMID- 29041541 TI - Electrically optofluidic zoom system with a large zoom range and high-resolution image. AB - We report an electrically controlled optofluidic zoom system which can achieve a large continuous zoom change and high-resolution image. The zoom system consists of an optofluidic zoom objective and a switchable light path which are controlled by two liquid optical shutters. The proposed zoom system can achieve a large tunable focal length range from 36mm to 92mm. And in this tuning range, the zoom system can correct aberrations dynamically, thus the image resolution is high. Due to large zoom range, the proposed imaging system incorporates both camera configuration and telescope configuration into one system. In addition, the whole system is electrically controlled by three electrowetting liquid lenses and two liquid optical shutters, therefore, the proposed system is very compact and free of mechanical moving parts. The proposed zoom system has potential to take place of conventional zoom systems. PMID- 29041542 TI - Profilometry with digital fringe-projection at the spatial and temporal Nyquist frequencies. AB - A phase-demodulation method for digital fringe-projection profilometry using the spatial and temporal Nyquist frequencies is presented. It allows to digitize tridimensional surfaces using the highest spatial frequency (pi radians per pixel) and consequently with the highest sensitivity for a given digital fringe projector. Working with the highest temporal frequency (pi radians per temporal sample), the proposed method rejects the DC component and all even-order distorting harmonics using 2-step phase shifting; this robustness against harmonics is similar to that of the popular 4-step least-squares phase-shifting algorithm. The proposed phase-demodulation method is suitable for the digitization of piecewise continuous surfaces because it does not require spatial low-pass filtering. Gamma calibration is also unnecessary because the projected fringes are binary, and the harmonics produced by the binary profile can be attenuated with a slight defocusing on the digital projector. Viability of the proposed method is supported by experimental results showing complete agreement with the predicted behavior. PMID- 29041543 TI - Filamentary plasma grating induced by interference of two femtosecond laser pulses in water. AB - We present direct observation of filamentary plasma grating induced by interference between two noncollinear infrared femtosecond pulses in water by doping with gold nanoparticles. The gold nanoparticles act as scattering media in water and visualize the fine structure of local optical fields of plasma grating. By measuring the variation of local conductivity as laser undergoes filamentation in water, the generated electron density in water is qualitatively studied. Significant enhancement of local electron density is observed at the intersecting region as two laser beams form plasma grating, indicating the breakthrough of clamped intensity of a conventional filament in water. PMID- 29041544 TI - Fiber taper characterization by optical backscattering reflectometry. AB - Fiber tapers provide a way to rapidly measure the spectra of many types of optical microcavities. Proper fabrication of the taper ensures that its width varies sufficiently slowly (adiabatically) along the length of the taper so as to maintain single spatial mode propagation. This is usually accomplished by monitoring the spectral transmission through the taper. In addition to this characterization method it is also helpful to know the taper width versus length. By developing a model of optical backscattering within the fiber taper, it is possible to use backscatter measurements to characterize the taper width versus length. The model uses the concept of a local taper numerical aperture to accurately account for varying backscatter collection along the length of the taper. In addition to taper profile information, the backscatter reflectometry method delineates locations along the taper where fluctuations in fiber core refractive index, cladding refractive index, and taper surface roughness each provide the dominant source of backscattering. Rayleigh backscattering coefficients are also extracted by fitting the data with the model and are consistent with the fiber manufacturer's datasheet. The optical backscattering reflectometer is also used to observe defects resulting from microcracks and surface contamination. All of this information can be obtained before the taper is removed from its fabrication apparatus. The backscattering method should also be prove useful for characterization of nanofibers. PMID- 29041545 TI - Planar two-groove optical differentiator in a slab waveguide. AB - We propose a simple planar optical differentiator consisting of two grooves on the surface of a slab waveguide. The studied differentiator operates in reflection and enables temporal and spatial differentiation of optical pulses and beams propagating in the waveguide. The differentiation is associated with the excitation of an eigenmode localized at the ridge located between the grooves. The presented numerical simulation results demonstrate high-quality spatial, temporal and the so-called spatiotemporal differentiation. The proposed differentiator may find application in ultrafast analog computing and signal processing systems. PMID- 29041546 TI - Power laws for backscattering by ice crystals of cirrus clouds. AB - The backscattering Mueller matrix for the typical shapes of ice crystals of cirrus (hexagonal columns and plates, bullets and droxtals) in the case of their random orientations has been approximately presented as the power functions of the crystal size from 10 um to 1000 um. The coefficients of the power functions have been found. Four commonly used backscatter ratios used in lidar research (depolarization, lidar, color and backscatter-to-IWC ratios) have been calculated for the first time as the functions of the modal crystal size at the conventional lidar wavelengths of 0.355, 0.532 and 1.064 um. PMID- 29041547 TI - Few-mode fiber, splice and SDM component characterization by spatially-diverse optical vector network analysis. AB - This paper discusses spatially diverse optical vector network analysis for space division multiplexing (SDM) component and system characterization, which is becoming essential as SDM is widely considered to increase the capacity of optical communication systems. Characterization of a 108-channel photonic lantern spatial multiplexer, coupled to a 36-core 3-mode fiber, is experimentally demonstrated, extracting the full impulse response and complex transfer function matrices as well as insertion loss (IL) and mode-dependent loss (MDL) data. Moreover, the mode-mixing behavior of fiber splices in the few-mode multi-core fiber and their impact on system IL and MDL are analyzed, finding splices to cause significant mode-mixing and to be non-negligible in system capacity analysis. PMID- 29041548 TI - Extending chip-based Kerr-comb to visible spectrum by dispersive wave engineering. AB - Anomalous group velocity dispersion is a key parameter for generating bright solitons, and thus wideband Kerr frequency combs. Extension of the frequency combs spectrum to visible wavelengths has been a major challenge because of the strong normal dispersion of conventional photonic materials at these wavelengths. In this paper, we numerically demonstrate a wideband frequency comb extending from near-infrared to visible wavelengths (~1200 nm to 650 nm). The proposed frequency comb micro-resonator takes advantage of a wideband blue-shifted anomalous dispersion, achieved in an optimized over-etched silicon nitride waveguide and strong power transfer to shorter wavelengths through radiative dispersive waves, achieved by modulating the dispersion in a coupled resonator architecture. We show the possibility of obtaining a close to visible dispersive Cherenkov radiation peak that is only 10 dB below the overall comb peak and can be tuned by adjusting the coupling structure in the coupled resonator architecture. PMID- 29041549 TI - High Q-factor with the excitation of anapole modes in dielectric split nanodisk arrays. AB - The simultaneous realization of high Q-factor resonances and strong near-field enhancements around and inside of dielectric nanostructures is important for many applications in nanophotonics. However, the incident fields are often confined within dielectric nanoparticles, which results in poor optical interactions with external environment. Near-field enhancements can be extended outside of dielectric nanostructures with proper design, but the Q-factor is often reduced caused by additional radiation losses. This paper shows that the obstacles to achieve high Q-factor, that is, the radiative losses can be effectively suppressed by using dielectric nanodisk arrays, where the Q-factor is about one order larger than that of the single disks associated with the nonradiating anapole modes and the collective oscillations of the arrays. When the resonance energies of the electric dipole mode and the subradiant mode are degenerate with each other, the destructive interference produces an effect analogous to electromagnetically induced transparency. Furthermore, the Q-factor can be extremely enlarged with dielectric split nanodisk arrays, where the present of the split gap does not induce additional losses. Instead, the coupling between the two interfering modes is modified by adjusting the gap width, which makes it possible to achieve high Q-factor and strong near-field enhancements around and inside of the split disks simultaneously. It is shown that the Q-factor is approaching to 106 when the gap width is about 110 nm, and the near-field enhancements around and inside of the split disks are about two orders stronger than that of the single disk. PMID- 29041550 TI - Asymmetrical polarization-dependent scattering and reflection in a sole cell of polymer network-90 degrees twisted nematic liquid crystals. AB - The anisotropically intrinsic scattering and reflection of a sole cell of polymer network-90 degrees twisted nematic liquid crystals (PN-90 degrees TNLCs) without any polarizer are proposed. Light with specifically linear polarizations, incident from one direction, can penetrate the PN-90 degrees TNLCs with applied voltage. The polarization direction of the output beam will be rotated 90 degrees . The same linearly polarized light, incident from the other direction, will be scattered because it encounters the refractive indices mismatch of various LC domains. The reflection, resulting from the boundaries of LCs and polymers, also shows optical anisotropy. Such LC devices can be applied as scattering-type linear polarizers. PMID- 29041551 TI - Mid-wave infrared beam steering based on high-efficiency liquid crystal diffractive waveplates. AB - We demonstrated two liquid crystal diffractive waveplates: one optimized for near infrared (1.06 um), and another for mid-wave infrared (MWIR, 3~5 um). By employing a low loss liquid crystal mixture UCF-M3, whose absorption loss is below 2% in the 4~5 um spectral region, the grating achieves over 98% diffraction efficiency in a broad MWIR range. To switch the grating, both active and passive driving methods can be considered. In our experiment, we used a polymer stabilized twisted nematic cell as the polarization rotator for passive driving. The obtained rise time is 0.2 ms and decay time is 10 ms. PMID- 29041552 TI - Comparison of tool feed influence in CNC polishing between a novel circular random path and other pseudo-random paths. AB - A new category of circular pseudo-random paths is proposed in order to suppress repetitive patterns and improve surface waviness on ultra-precision polished surfaces. Random paths in prior research had many corners, therefore deceleration of the polishing tool affected the surface waviness. The new random path can suppress velocity changes of the polishing tool and thus restrict degradation of the surface waviness, making it suitable for applications with stringent mid spatial-frequency requirements such as photomask blanks for EUV lithography. PMID- 29041553 TI - Orthogonal polarization encoding for reduction of interpixel cross talk in holographic data storage. AB - Interpixel cross talk decreases the quality of a reconstructed signal in holographic data storage and imposes a limitation on its storage capacity. To reduce the interpixel cross talk, an orthogonal polarization encoding method is proposed. In the proposed method, the polarization state of each pixel is set to be orthogonal with that of surrounding pixels. This prevents the interference between nearest-neighboring pixels and significantly reduces the gross of the interpixel cross talk. The quality of the data page obtained with the proposed method is numerically and experimentally evaluated. Those results suggest that the proposed method can improve the quality of a reconstructed signal. PMID- 29041554 TI - Optical design, laboratory test, and calibration of airborne long wave infrared imaging spectrometer. AB - We discuss and evaluate a long wave infrared imaging spectrometer in terms of its opto-mechanical design and analysis, alignment, testing, and calibration. The instrument is a practical airborne sensor achieving high spectral resolution and sensitive noise equivalent delta temperature. The instrument operates in the 8 to 12.5 MUm spectral region with 28.85 nm spectral sampling, 1 mrad instantaneous field of view, and >40 degrees cross track field. The instrument comprises three uniform sub-modules with identical design parameters and performances. The sub module design is based on a refractive foreoptics feeding an all-reflective spectrometer. The optical form of the spectrometer is a double-pass reflective triplet with a flat grating, which has a fast f/2 and high optical throughput. Cryogenic optics of 100 K is implemented only for the spectrometer. Assembly and thermal deformation and focusing adjustment design are particularly considered for this low temperature. All the mirrors of the spectrometer are opto-mechanical integrated designed and manufactured by single-point diamond turning technology. We consider the center sub-module as an example, and we present its laboratory testing results and calibration; the results indicate the instrument's potential value in airborne sensing. PMID- 29041555 TI - Miniaturized compound refractive X-ray zoom lens. AB - We introduce the concept of a miniaturized compound refractive X-ray zoom lens consisting of SU-8 lenses fabricated by deep X-ray lithography. The focal length can be varied by changing the number of lens elements placed in the beam. We use suitable actuators to move single lens elements reversibly out of the beam. The X ray zoom lens can accept different X-ray energies while keeping a fixed working distance, or vary the focal distance for a fixed energy. The latter is useful in tuning the magnification factor in full field microscopy. PMID- 29041556 TI - Guiding light in a water core all-solid cladding photonic band gap fiber - an innovative platform for fiber-based optofluidics. AB - We present a single-channel photonic band gap fiber design allowing for guiding light inside a water core, which is surrounded by solid microstructured cladding, consisting of an array of high refractive index strands in silica. We address all relevant properties and show that the microstructure substantially reduces loss. We also introduce a ray reflection model, matching numerical modelling and allowing for time-effective large-scale parameter sweeps. Our single channel fiber concept is particularly valuable for applications demanding fast and reliable injection of liquids into the core, with potential impact in fields such as optofluidics, spectroscopy or bioanalytics. PMID- 29041557 TI - Fabrication and application of a non-contact double-tapered optical fiber tweezers. AB - A double-tapered optical fiber tweezers (DOFTs) was fabricated by a chemical etching called interfacial layer etching. In this method, the second taper angle (STA) of DOFTs can be controlled easily by the interfacial layer etching time. Application of the DOFTs to the optical trapping of the yeast cells was presented. Effects of the STA on the axile trapping efficiency and the trapping position were investigated experimentally and theoretically. The experimental results are good agreement with the theoretical ones. The results demonstrated that the non-contact capture can be realized for the large STA (e.g. 90 deg) and there was an optimal axile trapping efficiency as the STA increasing. In order to obtain a more accurate measurement result of the trapping force, a correction factor to Stokes drag coefficient was introduced. This work provided a way of designing and fabricating an optical fiber tweezers (OFTs) with a high trapping efficient or a non-contact capture. PMID- 29041558 TI - Feeble object detection of underwater images through LSR with delay loop. AB - Feeble object detection is a long-standing problem in vision based underwater exploration work. However, because of the complicated light propagation situation and high background noise, underwater images are highly degraded. Noise is not always detrimental. Logical stochastic resonance (LSR) can be a useful tool for amplifying feeble signals by utilizing the constructive interplay of noise and a nonlinear system. In the present study, an appropriate LSR structure with a delay loop is proposed to process a low-quality underwater image for enhancing the vision detection accuracy of underwater feeble objects. Ocean experiments are conducted to demonstrate the effectiveness of the proposed structure. We also give explicit numerical results to illustrate the relationship between the structure of LSR and the correct detection probability. Methods presented in this paper are quite general and can thus be potentially extended to other applications for obtaining better performance. PMID- 29041559 TI - Active intensity noise suppression for a broadband mid-infrared laser source. AB - Excess relative intensity noise (RIN) constitutes one of the major limitations of most spectroscopic methods involving lasers. Here, we present an active RIN suppression scheme for a coherent mid-infrared (MIR) light source (8.4-11 um), based on intra-pulse difference frequency generation (DFG). Three different stabilization concepts that rely on modulating the intensity of the driving near infrared (NIR) pulse train with an acousto-optic modulator are investigated and compared. By using the wings of the NIR spectrum to generate the error signal, a RIN suppression of the MIR pulse train of up to a factor of 20 was achieved in the band between 1 Hz and 100 kHz, resulting in a total integrated RIN of 0.07%. PMID- 29041560 TI - Single-photon cesium Rydberg excitation spectroscopy using 318.6-nm UV laser and room-temperature vapor cell. AB - We demonstrate a single-photon Rydberg excitation spectroscopy of cesium (Cs) atoms in a room-temperature vapor cell. Cs atoms are excited directly from 6S1/2 ground state to nP3/2 (n = 70 - 100) Rydberg states with a 318.6 nm ultraviolet (UV) laser, and Rydberg excitation spectra are obtained by transmission enhancement of a probe beam resonant to Cs 6S1/2, F = 4 - 6P3/2, F' = 5 transition as partial population on F = 4 ground state are transferred to Rydberg state. Analysis reveals that the observed spectra are velocity-selective spectroscopy of Rydberg state, from which the amplitude and linewidth influenced by lasers' Rabi frequency have been investigated. Fitting to energies of Cs nP3/2 (n = 70 -100) states, the determined quantum defect is 3.56671(42). The demodulated spectra can also be employed as frequency references to stabilize the UV laser frequency to specific Cs Rydberg transition. PMID- 29041561 TI - Peak-power scaling of femtosecond Yb:Lu2O3 thin-disk lasers. AB - We present a high-peak-power SESAM-modelocked thin-disk laser (TDL) based on the gain material Yb-doped lutetia (Yb:Lu2O3), which exceeds a peak-power of 10 MW for the first time. We generate pulses as short as 534 fs with an average power of 90 W and a peak power of 10.1 MW, and in addition a peak power as high as 12.3 MW with 616-fs pulses and 82-W average power. The center lasing wavelength is 1033 nm and the pulse repetition rates are around 10 MHz. We discuss and explain the current limitations with numerical models, which show that the current peak power is limited in soliton modelocking by the interplay of the gain bandwidth and the induced absorption in the SESAM with subsequent thermal lensing effects. We use our numerical model which is validated by the current experimental results to discuss a possible road map to scale the peak power into the 100-MW regime and at the same time reduce the pulse duration further to sub-200 fs. We consider Yb:Lu2O3 as currently the most promising gain material for the combination of high peak power and short pulse duration in the thin-disk-laser geometry. PMID- 29041562 TI - Design of broadband reflective circular polarizer for attosecond pulse in the extreme ultraviolet region. AB - In this paper, we present a design method of broadband reflective circular polarizer (BRCP) in the extreme ultraviolet (EUV) region. By using this method, we designed three BRCPs with a 6, 12 and 18 eV bandwidth, respectively. Then, we investigated the performances of designed BRCPs in theory. The results indicated that the reflected lights of these BRCPs all showed a nearly 100% circular polarization degree and considerable circular reflection in their design band. In addition, we also studied the origin of high circular polarization degree by analyzing the phase shift and the reflectivity ratio between s- and p-polarized lights induced by the reflection of BRCPs. Furthermore, the pulse responses of BRCPs for attosecond pulses were also investigated. The proposed EUV BRCPs can be used for controlling the polarization state of broadband EUV sources, e.g., generating the circularly polarized attosecond pulse by a linearly polarized one. PMID- 29041563 TI - Diffraction of partially-coherent light beams by microlens arrays. AB - The synthesis method including wave-optics and ray-tracing for the acceleration of the simulation of micro-optical systems has been developed. The effects of the spatial coherence and randomization of microlens array (MLA) parameters have been considered. The method based on coherent states representation for the calculation of the optical efficiency of microlens arrays taking into account the light source polarization has been developed. Numerical simulations of the intensity distributions and spreading angle of a diffracted beam have been carried out. PMID- 29041564 TI - Analysis of modal crosstalk for communication in turbulent ocean using Lommel Gaussian beam. AB - We analyze OAM modal crosstalk of a Lommel-Gaussian beam induced by anisotropic oceanic turbulence. The theoretical model is constructed to illustrate the impacts of turbulence and beam parameters on the received crosstalk probability. Turbulence conditions with a larger inner-scale factor, larger anisotropic factor, higher dissipation rate of kinetic energy, lower dissipation rate of the mean-squared temperature, and smaller temperature-salinity contribution ratio usually cause smaller crosstalk. Due to its better immunity to turbulence interference, a Lommel-Gaussian beam with a small asymmetry factor, low OAM quantum number, optimum waist width, and long wavelength in the transmission window is preferable for application. The results are useful to improve OAM communication performances in oceanic turbulence. PMID- 29041565 TI - Radiance based method for accurate determination of volume scattering parameters using GPU-accelerated Monte Carlo. AB - Volume scattering is an important effect in different fields, ranging from biology to lighting. Models for volume scattering usually rely on parameters that are estimated with inverse methods that iteratively fit simulations to experimental data. To obtain accurate estimates for these parameters, the scattered intensity distribution can be used in such fitting methods. However, it has been shown that for samples with long optical path lengths this type of data may result in poor parameter estimates. In this work, an inverse procedure is proposed that fits to scattered radiance distributions. By taking advantage of current generation graphics processing units, the method implemented is sufficiently efficient to allow performing an in-depth simulation study on the difference between using radiance or intensity distributions to estimate the volume scattering parameters of samples. This work shows that for samples with moderate optical path lengths, the intensity distribution contains sufficient information to accurately estimate the volume scattering properties. However, for longer optical path lengths, the descriptive power of the intensity distribution is not enough and radiance distribution based methods, such as the inverse method proposed, are better suited. PMID- 29041566 TI - Topologically protected edge states in graphene plasmonic crystals. AB - A two-dimensional graphene plasmonic crystal composed of periodically arranged graphene nanodisks is proposed. We show that the band topology effect due to inversion symmetry broken in the proposed plasmonic crystals is obtained by tuning the chemical potential of graphene nanodisks. Utilizing this kind of plasmonic crystal, we constructed N-shaped channels and realized topologically edged transmission within the band gap. Furthermore, topologically protected exterior boundary propagation, which is immune to backscattering, was also achieved by modifying the chemical potential of graphene nanodisks. The proposed graphene plasmonic crystals with ultracompact size are subject only to intrinsic material loss, which may find potential applications in the fields of topological plasmonics and high density nanophotonic integrated systems. PMID- 29041567 TI - Optical tomographic reconstruction based on multi-slice wave propagation method. AB - In optical tomography, it is challenging to obtain high-quality results for complex-structured objects which induce multiple scattering. Nonlinear reconstruction methods outperform linear ones in these situations. A promising nonlinear method is the approach based on beam propagation method, but its accuracy may decrease for complicated structures. In this paper, we describe a novel tomographic reconstruction method using multi-slice wave propagation method (WPM) as the forward model, which simulates the scattering process more precisely but has not been introduced in tomographic reconstruction before. The computational model of WPM is presented. To tackle the computational complexity, we propose an efficient scheme to compute the transmitted field and its derivative. We then use an iterative optimization method to recover the quantitative refraction index distribution. We also discuss the influences of the parameters in the method and how to determine their values. The experimental results demonstrate that this method can address multiple scattering problems and provide high accuracy for complex-structured objects. PMID- 29041568 TI - Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography. AB - Switchable two dimensional liquid crystal diffraction gratings are promising candidates in beam steering devices, multiplexers and holographic displays. For these areas of applications a high degree of integration in optical systems is much sought-after. In the context of diffraction gratings this means that the angle of diffraction should be rather high, which typically poses a problem as the fabrication of small grating periods is challenging. In this paper, we propose the use of nanosphere lithography (NSL) for the fabrication of two dimensionally structured electrodes with a periodicity of a few micrometers. NSL is based on the self-assembly of micro- or nanometer sized spheres into monolayers. It allows for easy substrate structuring on wafer scale. The manufactured electrode is combined with a liquid crystalline polymer-stabilized blue phase, which facilitates sub-millisecond electrical switching of the diffraction efficiency at a diffraction angle of 21.4 degrees . PMID- 29041569 TI - 11-fs dark pulses generated via coherent absorption in plasmonic metamaterial. AB - We demonstrate generation of the shortest reported 11fs dark pulses using the coherent absorption process on a plasmonic absorber with a gating pulse. The dark pulses appear as a power dip on the envelope of a long carrier pulse and are characterized using the cross-correlation technique. The principal difference and advantage of our approach in comparison with previously developed laser sources of dark pulses is that, in principle, it allows transferring arbitrary pattern of bright pulses into a pattern of dark pulses in another optical signal channel. PMID- 29041570 TI - Fundamental-mode third harmonic generation in microfibers by pulse-induced quasi phase matching. AB - A scheme to enhance the fundamental-mode third harmonic generation efficiency in microfibers is presented. By introducing an appropriate counter-propagating pulse train, large propagation constant mismatch is partly overcome and nonlinear phase shifts could be corrected for, thus quasi-phase matching between the fundamental pump mode and the fundamental third harmonic mode is achieved, enabling the harmonic power to grow along the direction of propagation. Depending on the microfiber and pulse parameters, phase matching can enhance the conversion efficiency by several orders of magnitude with respect to the non-phase matched case. This scheme offers an alternative approach for harmonic generation and could potentially be applied to other small core waveguides. PMID- 29041571 TI - Segmented Bessel beams. AB - We investigate segmented Bessel beams that are created by placing different ring apertures behind an axicon that is illuminated with a plane wave. We find an analytical estimate to determine the shortest possible beam segment by deriving a scale-invariant analytical model using appropriate dimensionless parameters such as the wavelength and the axicon angle. This is verified using simulations and measurements, which are in good agreement. The size of the ring apertures was varied from small aperture sizes in the Frauhofer diffraction limit to larger aperture sizes in the classical limit. PMID- 29041572 TI - Efficient up-conversion red emission from TiO2:Yb,Er nanocrystals. AB - Usually, up-conversion (UC) green emission is easily observed by using rare-earth doped fluoride nanocrystals. However, preferential red emission is desired for some actual applications especially in biological field. Here, we demonstrated that the dominant UC red emission can be realized by preparing TiO2:Yb,Er nanocrystals under 980 nm exciation. By controlling the crystal symmetry and size via the annealing temperature and Yb3+ ions concentration, the enhanced UC red emission is achieved. The multi-photon relaxation and cross-relaxation mechanisms may be responsible for the energy transform process and in turn the UC emission. PMID- 29041573 TI - Electrically controlled Mie-resonance absorber. AB - An electrically controlled metamaterial perfect absorber (MPA) based on Mie resonance is demonstrated experimentally and modeled numerically. A ceramic dielectric cube is adhered to a specially shaped thin copper film sputtered on a quartz plate. By passing direct current (DC) through the film, the temperature of the cube can be varied, resulting in changing the cube's permittivity and shifting the absorption resonance frequency. The frequency increases on heating and the absorption is over 99% throughout the tuning range. This method for constructing miniaturized tunable MPAs compares favorably to bulky alternative designs. It also provides a versatile route to broaden the absorption bandwidth and potentially expand the range of applications such as metasurfaces and cloaking devices utilizing nonuniform permittivity absorbers produced by temperature gradients. PMID- 29041574 TI - Compensation-free broadband entangled photon pair sources. AB - Quantum sources that provide broadband biphotons entangled in both polarization and time-energy degrees of freedom are a rich quantum resource that finds many applications in quantum communication, sensing, and metrology. Creating such a source while maintaining high entanglement quality over a broad spectral range is a challenge, which conventionally requires various compensation steps to erase temporal, spectral, or spatial distinguishabilities. Here, we point out that in fact compensation is not always necessary. The key to generate broadband polarization-entangled biphotons via type-II spontaneous parametric downcoversion (SPDC) without compensation is to use nonlinear materials with sufficiently low group birefringence that the biphoton bandwidth becomes dispersion-limited. Most nonlinear crystals or waveguides cannot meet this condition, but it is easily met in fiber-based systems. We reveal the interplay of group birefringence and dispersion on SPDC bandwidth and polarization entanglement quality. We show that periodically poled silica fiber (PPSF) is an ideal medium to generate high concurrence (>0.977) polarization-entangled photons over a broad spectral range (>77nm), directly and without compensation. This is the highest polarization entanglement concurrence reported that is maintained over a broad spectral range from a compensation-free source. PMID- 29041575 TI - Estimation of the turbulence energy dissipation rate in the atmospheric boundary layer from measurements of the radial wind velocity by micropulse coherent Doppler lidar. AB - The accuracy of the method of azimuth structure function for estimation of the dissipation rate of the kinetic energy of turbulence from an array of radial velocities measured by low-energy micropulse coherent Doppler lidars with conical scanning by a probing beam around the vertical axis has been studied numerically. The applicability of the method in dependence on the turbulence intensity and the signal-to-noise ratio has been determined. The method of azimuth structure function was applied for estimation of the turbulent energy dissipation rate from radial velocities measured by the lidar in the experiments on the coast of Lake Baikal. Two dimensional time-height patterns of the wind turbulence energy dissipation rate were obtained. Part of them were obtained in presence of the atmospheric internal waves (AIWs) and low-level jet streams. It is observed that the wind turbulence in the area occupied by jet streams is very weak. In the process of dissipation of AIWs the wind turbulence strength increases. PMID- 29041576 TI - Analytical link bandwidth model based square array reception for non-line-of sight ultraviolet communication. AB - An analytical model is presented firstly in this paper to formulate the link bandwidth of non-line-of-sight (NLOS) ultraviolet (UV) channel. The link bandwidth is characterized by three geometrical parameters including transmitter (Tx) elevation angle, receiver (Rx) field of view (FOV), and transceiver separation distance, and further expressed as a closed-form through software aided numerical fitting. Comparison with the link bandwidth obtained via a Monte Carlo model is done to verify the feasibility of this model. Based on this model, we investigate the diversity reception on the NLOS UV communication from a new perspective. A spatially squared distributed Rx array is customized for the NLOS UV channel. Lower temporal broadening is enabled, leading to a higher link bandwidth. Numerical results suggest that over 100% improvement of the link bandwidth is predicted by the square array reception and the ratio grows rapidly with the narrowing of Tx beam divergence. Therefore, this paper provides a guide for link analysis and receiver design for NLOS UV communication. PMID- 29041577 TI - Robust hollow-fiber-pigtailed 930 nm femtosecond Nd:fiber laser for volumetric two-photon imaging. AB - We demonstrate a robust high power 930 nm femtosecond Nd:fiber laser system with hollow-core photonic bandgap fiber (HC-PBGF) as the output delivery, which can be easily integrated into compact two-photon microscopy system for bio-imaging. The whole laser system can deliver up to 17.4 nJ, 220-fs pulses at 930 nm with repetition rate of 46 MHz. In this paper, this laser was demonstrated as the light source for volumetric imaging of zebrafish blood vessel. PMID- 29041578 TI - Fluid jet-array parallel machining of optical microstructure array surfaces. AB - Optical microstructure array surfaces such as micro-lens array surface, micro groove array surface etc., are being used in more and more optical products, depending on its ability to produce a unique or particular performance. The geometrical complexity of the optical microstructures array surfaces makes them difficult to be fabricated. In this paper, a novel method named fluid jet-array parallel machining (FJAPM) is proposed to provide a new way to generate the microstructure array surfaces with high productivity. In this process, an array of abrasive water jets is pumped out of a nozzle, and each fluid jet simultaneously impinges the target surface to implement material removal independently. The jet-array nozzle was optimally designed firstly to diminish the effect of jet interference based on the experimental investigation on the 2 Jet nozzles with different jet intervals. The material removal and surface generation models were built and validated through the comparison of simulation and experimental results of the generation of several kinds of microstructure array surfaces. Following that, the effect of some factors in the process was discussed, including the fluid pressure, nozzle geometry, tool path, and dwell time. The experimental results and analysis prove that FJAPM process is an effective way to fabricate the optical microstructure array surface together with high productivity. PMID- 29041579 TI - 42.3 Tbit/s, 18 Gbaud 64 QAM WDM coherent transmission over 160 km in the C-band using an injection-locked homodyne receiver with a spectral efficiency of 9 bit/s/Hz. AB - We demonstrate a 235-channel wavelength division multiplexing (WDM), polarization multiplexed (pol-mux) 18-Gbaud 64 QAM coherent transmission of 160 km over the full C-band. By applying an injection-locked homodyne detection circuit to WDM coherent transmission, we have achieved low noise optical carrier-phase locking between transmitted data and a local oscillator over the full C-band range. As a result, a potential capacity of 42.3 Tbit/s data with a spectral efficiency of 9 bit/s/Hz was transmitted. PMID- 29041580 TI - Optical reflection and waveguiding of sound by photo-thermally induced barriers. AB - Control and manipulation of sound is of critical importance to many different scientific and engineering fields, requiring the design of rigid physical structures with precise geometries and material properties for the desired acoustics. In this work, we demonstrate the ability to manipulate the direction and magnitude of sound waves traveling in air using laser light, without the need for physical interfaces associated with different materials. Efficient reflection of sound waves off of transient, optically generated, abrupt air density barriers is demonstrated, with acoustic reflections greater than 25% of the incident acoustic wave amplitude. Implementation of multiple barriers, can result in complete suppress the transmission of incident acoustic signals as great as 70 dB. Additionally, shaping the laser beam acoustic waveguides can be generated with dramatically reduced transmission losses. PMID- 29041581 TI - Spatially localized wavelength-selective absorption in morphology-modulated semiconductor nanowires. AB - In this study, we proposed morphology-modulated Si nanowires (NWs) with a hexagonal cross-section and numerically investigated their resonant optical absorption and scattering properties. The calculated absorption and scattering efficiency spectra of the NWs exhibited optical resonances that could be controlled by tuning the aspect ratio (AR) of the NW cross-sectional shapes. The spectra also revealed interesting spectral behaviors including resonant peak shifts in the absorption spectrum and asymmetric line shapes in the scattering spectrum. To achieve spatially confined and wavelength-selective light absorption, we periodically modulated the geometry of the diameter in a single NW by combining two different ARs; we call these "diameter-modulated NWs." We designed various diameter-modulated NWs with short and long pitch sizes, and we observed unique and interesting features in the optical resonance and corresponding light absorption spectra such as grating modes and three dimensional cavity modes. The proposed diameter-modulated NWs can be promising building blocks for the nanoscale localized light absorption and detection in compact nanophotonic integrated circuits. PMID- 29041582 TI - Wideband microwave phase noise measurement based on photonic-assisted I/Q mixing and digital phase demodulation. AB - A wideband microwave phase noise measurement system is proposed based on quadrature phase demodulation of the mixing components of a signal under test (SUT) and its delayed replica. The time delay is introduced by a low-loss optical fiber, which can be sufficiently large to achieve a high phase noise measurement sensitivity, and the quadrature phase demodulation is achieved by photonic assisted in-phase and quadrate (I/Q) mixing together with digital signal processing. Thanks to the optoelectronic hybrid quadrature phase demodulation, the use of feedback loops, which are usually required in conventional photonic delay-line-based phase noise measurement systems, is avoided, and the measurable frequency range is expanded. An experiment is implemented. Accurate phase noise measurement of SUTs in a frequency range of 5-35 GHz is demonstrated. With a 2-km single-mode fiber serving as the photonic delay line, the phase noise floor is as low as -131 dBc/Hz at the offset frequency of 10 kHz. The proposed scheme can be applied for evaluating the performance of microwave systems using low-phase-noise and wideband tunable microwave sources. PMID- 29041583 TI - Exploring the self-mode locking and vortex structures of nonplanar elliptical modes in selectively end-pumped Nd:YVO4 lasers: manifestation of large fractional orbital angular momentum. AB - An end-pumped Nd:YVO4 laser under selective pumping is used to excite lasing modes with transverse patterns performed to exhibit the characteristics of multiple spots arranged on elliptical features near degenerate cavities. The spatial distribution of elliptical lasing modes is clearly revealed to be localized on the nonplanar ray orbits, so-called nonplanar elliptical modes, which possess large fractional orbital angular momentum. Moreover, temporal dynamics for the output emission of nonplanar elliptical modes are verified to obtain self-mode-locked operation. We further numerically manifest not only the influence of radial-asymmetry distributions on the vortex structures of nonplanar elliptical modes, but also the vector field of transverse lasing modes altered with twisting phase structures in the propagation direction. PMID- 29041584 TI - Vector vortex beam generation with dolphin-shaped cell meta-surface. AB - We present a dolphin-shaped cell meta-surface, which is a combination of dolphin shaped metallic cells and dielectric substrate, for vector vortex beam generation with the illumination of linearly polarized light. Surface plasmon polaritons are excited at the boundary of the metallic cells, then guided by the metallic structures, and finally squeezed to the tips to form highly localized strong electromagnetic fields, which generate the intensity of vector vortex beams at z component. Synchronously, the abrupt phase change produced by the meta-surface is utilized to explain the vortex phase generated by elements. The new kind of structure can be utilized for communication, bioscience, and materiality. PMID- 29041585 TI - Heisenberg-resolution imaging through a phase-controlled screen. AB - We propose a N-photon imaging scheme with the resolution reaching the fundamental Heisenberg limit. The key imaging element is a phase-controlled screen which introduces synchronous-position N-photon interference, giving rise to enhanced resolution that exceeds the well-known Rayleigh resolution limit by a factor of N. In the standard wide-field illumination situation, our imaging scheme requires an entangled source to illuminate the object. Besides, we show that classical light is also applicable to realize this Heisenberg-resolution imaging if a scanning-focused-beam illumination is used. Our N-photon imaging scheme is practically realizable by using current well-developed technology. PMID- 29041586 TI - High-power and highly efficient composite laser with an anti-reflection coated layer between a laser crystal and a diamond heat spreader fabricated by room temperature bonding. AB - We have succeeded in bonding a Nd:YAG crystal and an anti-reflection coated diamond crystal to realize a composite laser which minimizes the Fresnel reflection loss at the bonded interface for the first time. This newly developed composite laser has realized higher output power at higher pump power than a non composite Nd:YAG laser while keeping nearly the same slope efficiency. PMID- 29041587 TI - Impact of LED transmitters' radiation pattern on received power distribution in a generalized indoor VLC system. AB - This paper analyzes the received power distribution of a generalized indoor visible light communication (VLC) system. The generalization includes: both ceiling-mounted and wall-mounted layouts are considered on the transmitting end to cover some special scenarios; a generally applicable sum-of-sine luminous intensity pattern (SSLIP) is used to fit light emitting diodes (LEDs)' radiation curve; the receiver is considered to have a large light receiving area (LRA) with non-uniformly distributed received power. Through mathematical calculation, the expression of received power at any point of the room is derived. Using the expression, the impact of transmitting LEDs' radiation pattern on received power performance is investigated. It is suggested that in the ceiling-mounted scenario, the LED transmitters with sharp luminous intensity patterns have bigger received power variations and shorter optimal receiving distances. In the wall mounted case in contrast, sharp luminous intensity patterns lead to smaller received power variations and longer optimal receiving distances. PMID- 29041588 TI - One-dimensional single-photon position-sensitive silicon photomultiplier and its application in Raman spectroscopy. AB - We present a one-dimensional (1-D) single-photon position-sensitive silicon photomultiplier (PS-SiPM) that can perform both photon number and position discriminations. The device, which features epitaxial quenching resistors and a continuous cap resistive layer for charge division, possesses two cathodes on top and one anode at the bottom. The PS-SiPM shows an active size of 2.2 mm * 2.2 mm and micro avalanche photodiode cell pitch of ~10 MUm. The position measurement error (PME) and position resolution of the device are analyzed. The PME with low mean photoelectron number of approximately 0.11 is 29.6 +/- 27.3 MUm. The single photon position resolution is 393.4 MUm. When the photoelectron number increases from 1 to 7, the position resolution is improved from 393.4 MUm to 56.2 MUm. The application of the PS-SiPM in Raman spectroscopy for carbon tetrachloride (CCl4) at room temperature shows advantages of both CCD (rapid measurement) and photomultiplier tube (high gain, fast photon response, and simple readout electronics). This novel device concept exhibits potential as a low-cost and high performance detector for various laser spectroscopies. PMID- 29041589 TI - Design of zigzag folded inversion-stacked AlGaAs waveguides for ultra-compact wavelength converters. AB - We have proposed and designed zigzag-folded U-shaped waveguides to realize highly efficient wavelength conversion with an extremely small footprint. Extreme high efficiencies are achieved with a combination of modal phase matching and 4- quasi phase matching in inversion-stacked AlGaAs/Alox waveguides. Numerical simulations reveal that the conversion efficiency of second harmonic generation pumped at 1.55 MUm as high as 12000 %W-1 can be achieved in an 8.0-mm-long AlGaAs/Alox waveguide that is folded up into a small domain of 0.8*0.6 mm2 area. A phase matching signal bandwidth of difference frequency generation, 29 nm, covers 83 % of the telecommunication C band. PMID- 29041590 TI - Photoacoustic imaging in scattering media by combining a correlation matrix filter with a time reversal operator. AB - Acoustic scattering medium is a fundamental challenge for photoacoustic imaging. In this study, we reveal the different coherent properties of the scattering photoacoustic waves and the direct photoacoustic waves in a matrix form. Direct waves show a particular coherence on the antidiagonals of the matrix, whereas scattering waves do not. Based on this property, a correlation matrix filter combining with a time reversal operator is proposed to preserve the direct waves and recover the image behind a scattering layer. Both numerical simulations and photoacoustic imaging experiments demonstrate that the proposed approach effectively increases the image contrast and decreases the background speckles in a scattering medium. This study might improve the quality of photoacoustic imaging in an acoustic scattering environment and extend its applications. PMID- 29041591 TI - Optical signal suppression by a cascaded SOA/RSOA for wavelength reusing reflective PON upstream transmission. AB - An optical signal suppression technique based on a cascaded SOA and RSOA is proposed for the reflective passive optical networks (PONs) with wavelength division multiplexing (WDM). By suppressing the downstream signal of the optical carrier, the proposed reflective PON effectively reuses the downstream optical carrier for upstream signal transmission. As an experimental demonstration, we show that the proposed optical signal suppression technique is effective in terms of the signal bandwidth and bit-error-rate (BER) performance of the remodulated upstream transmission. PMID- 29041592 TI - Underwater computational ghost imaging. AB - Since the quality of underwater classical optical imaging is constrained by the absorptive and scattering nature for underwater environment, it is a challenging task to obtain long distance imaging. Ghost imaging is a second-order correlation imaging method using co-incidence measurement, which has the advantages of disturbance-free and wider angle of view (AOV), which can effectively improve the imaging result. We have investigated the computational ghost imaging under the underwater conditions for different turbidities and from different angles. The reconstruction obtained by computational ghost imaging can be rather desirable, in the scenarios that the classical optical imaging method completely fails. Moreover, the underwater computational ghost imaging can bear a wide range of AOV, where the obtained imaging results can be satisfiable in regardless of the detector's locations. This result brings a better alternative for underwater optical imaging. PMID- 29041593 TI - The Berry phase in the nanocrystal complex composed of metal nanoparticle and semiconductor quantum dot. AB - We investigate the Berry phase in the nanocrystal complex made of a metal nanoparticle and a slowly rotating semiconductor quantum dot under the radiation of a circularly polarized light. The Berry phase in the dynamic system is found to be more effective to manifest the interaction between the plasmon in the metal nanoparticle and the exciton in the quantum dot. The dependences of the Berry phase on the interparticle distance and the relative position are studied in the weak field condition. The methods to observe the Berry phase are also given. PMID- 29041594 TI - Time-resolved high harmonic spectroscopy of dynamical symmetry breaking in bi circular laser fields: the role of Rydberg states. AB - The bi-circular scheme for high harmonic generation, which combines two counter rotating circular fields with frequency ratio 2:1, has recently permitted to generate high harmonics with essentially circular polarization, opening the way for ultrafast chiral studies. This scheme produces harmonic lines at 3N + 1 and 3N + 2 multiples of the fundamental driving frequency, while the 3N lines are forbidden owing to the three-fold symmetry of the field. It is generally established that the routinely observed signals at these forbidden harmonic lines come from a slight ellipticity in the driving fields, which breaks the three-fold symmetry. We find that this is neither the only nor it is the dominant mechanism responsible. The forbidden lines can be observed even for perfectly circular, long driving pulses. We show that they encode rich information on the sub-cycle electronic dynamics that occur during the generation process. By varying the time delay and relative intensity between the two drivers, we demonstrate that when the second harmonic either precedes or is more intense than the fundamental field, the weak effects of dynamical symmetry breaking caused by finite pulse duration are amplified by electrons trapped in Rydberg orbits (i.e., Freeman resonances), and that the forbidden harmonic lines are a witness of this. PMID- 29041595 TI - Highly efficient and broadband optical polarizers based on dielectric nanowires. AB - The development of optical materials and devices that mimic the functionalities of conventional bulky optical components but on a much smaller footprint remains an important priority in nanophotonics. One prominent class of such optical elements are polarizers that change the polarization state of incident light. Recently, advances in plasmonic and photonic metasurfaces have given rise to different classes of subwavelength polarizers. Low efficiency and narrow band of operation remain, however, significant challenges. Here, we propose a device based on high refractive index dielectric nanowire dimers and analyze its working mechanism as efficient and broadband circular polarizers in the optical region of the electromagnetic spectrum. Our analysis predicts that a polarization conversion of roughly 97% with a transmission efficiency of more than 93% in a broad range of the visible spectrum is possible with nanowire dimers. PMID- 29041596 TI - Wideband backscattering reduction at terahertz using compound reflection grating. AB - Backscattering reduction is usually achieved by using either absorbers or diffractions gratings at the expense of a narrow bandwidth. In this paper, we propose a different strategy based on a metallic compound reflection grating (CRG). We demonstrate that this structure allows a strong and broadband (fractional bandwidth, FBW ~57%) backscattering reduction in the terahertz (THz) range by efficiently transferring the incident energy to the diffracted modes. The design is analyzed in terms of equivalent circuit and numerical simulations and the results are corroborated by a manufactured prototype operating at 0.35 THz. PMID- 29041597 TI - Enhanced light emission from improved homogeneity in biaxially suspended Germanium membranes from curvature optimization. AB - A silicon compatible light source is crucial to develop a fully monolithic silicon photonics platform. Strain engineering in suspended Germanium membranes has offered a potential route for such a light source. However, biaxial structures have suffered from poor optical properties due to unfavorable strain distributions. Using a novel geometric approach and finite element modelling (FEM) structures with improved strain homogeneity were designed and fabricated. Micro-Raman (MU-Raman) spectroscopy was used to determine central strain values. Micro-photoluminescence (MU-PL) was used to study the effects of the strain profiles on light emission; we report a PL enhancement of up to 3x by optimizing curvature at a strain value of 0.5% biaxial strain. This geometric approach offers opportunity for enhancing the light emission in Germanium towards developing a practical on chip light source. PMID- 29041598 TI - Indoor infrared optical wireless localization system with background light power estimation capability. AB - The indoor user localization function is in high demand for high-speed wireless communications, navigations and smart-home applications. The optical wireless technology has been used to localize end users in indoor environments. However, its accuracy is typically very limited, due to the ambient light, which is relatively strong. In this paper, a novel high-localization-accuracy optical wireless based indoor localization system, based on the use of the mechanism that estimates background light intensity, is proposed. Both theoretical studies and demonstration experiments are carried out. Experimental results show that the accuracy of the proposed optical wireless indoor localization system is independent on the localization light strength, and that an average localization error as small as 2.5 cm is attained, which is 80% better than the accuracy of previously reported optical wireless indoor localization systems. PMID- 29041599 TI - Monolithic optofluidic mode coupler for broadband thermo- and piezo-optical characterization of liquids. AB - We present a monolithic fiber device that enables investigation of the thermo- and piezo-optical properties of liquids using straightforward broadband transmission measurements. The device is a directional mode coupler consisting of a multi-mode liquid core and a single-mode glass core with pronounced coupling resonances whose wavelength strongly depend on the operation temperature. We demonstrated the functionality and flexibility of our device for carbon disulfide, extending the current knowledge of the thermo-optic coefficient by 200 nm at 20 degrees C and uniquely for high temperatures. Moreover, our device allows measuring the piezo-optic coefficient of carbon disulfide, confirming results first obtained by Rontgen in 1891. Finally, we applied our approach to obtain the dispersion of the thermo-optic coefficients of benzene and tetrachloroethylene between 450 and 800 nm, whereas no data was available for the latter so far. PMID- 29041600 TI - Analysis of a lens-array modulated coaxial holographic data storage system with considering recording dynamics of material. AB - In the first time, a simulation model with considering the recording dynamics of material is built and is used to simulate evolution of the grating strength of the recorded hologram in a coaxial volume holographic memory system. In addition, phase modulation by lens array in the reference is introduced and observed to perform better diffracted signal quality and higher shifting selectivity, in both simulation and experiment. The use of lens array is found to provide multiple advantages in volume holographic memory system. The new simulation model potentially can be used to precisely design the system to obtain higher diffracted signal quality, higher shifting selectivity, and reduction of M# consumption and increase of storage capacity. PMID- 29041601 TI - Fabrication of diffraction based security elements using direct laser interference patterning. AB - Product piracy impacts wide areas of the global economy resulting in multi billion dollar losses per year. Therefore, product protection technologies are required to produce security elements with high flexibility and complexity. In this work, the fabrication of diffraction-based security elements, so called grating cell arrays, using direct laser interference patterning is presented. Ultraviolet two-beam interference patterning is used to structure line-like gratings into 80 um in diameter spots with spatial periods ranging from 0.7 um to 2.2 um on PET substrates. The developed grating cell arrays are generated by the combination of several holographic surface gratings with variable spatial period and pattern orientation. The stored security information can be visualized by illumination with a coherent light source such as a laser pointer. PMID- 29041602 TI - Virtual ellipsometry on layered micro-facet surfaces. AB - Microfacet-based BRDF models are a common tool to describe light scattering from glossy surfaces. Apart from their wide-ranging applications in optics, such models also play a significant role in computer graphics for photorealistic rendering purposes. In this paper, we mainly investigate the computer graphics aspect of this technology, and present a polarisation-aware brute force simulation of light interaction with both single and multiple layered micro-facet surfaces. Such surface models are commonly used in computer graphics, but the resulting BRDF is ultimately often only approximated. Recently, there has been work to try to make these approximations more accurate, and to better understand the behaviour of existing analytical models. However, these brute force verification attempts still emitted the polarisation state of light and, as we found out, this renders them prone to mis-estimating the shape of the resulting BRDF lobe for some particular material types, such as smooth layered dielectric surfaces. For these materials, non-polarising computations can mis-estimate some areas of the resulting BRDF shape by up to 23%. But we also identified some other material types, such as dielectric layers over rough conductors, for which the difference turned out to be almost negligible. The main contribution of our work is to clearly demonstrate that the effect of polarisation is important for accurate simulation of certain material types, and that there are also other common materials for which it can apparently be ignored. As this required a BRDF simulator that we could rely on, a secondary contribution is that we went to considerable lengths to validate our software. We compare it against a state-of art model from graphics, a library from optics, and also against ellipsometric measurements of real surface samples. PMID- 29041603 TI - MDM transmission of CAP-16 signals over 1.1- km anti-bending trench-assisted elliptical-core few-mode fiber in passive optical networks. AB - Mode-division multiplexing passive optical network (MDM-PON) is a promising scheme for next-generation access networks to further increase the transmission capacity and number of end-customers. In this paper, we propose and experimentally demonstrate the implementation of MDM-PON architecture with the carrier-less amplitude/phase (CAP) modulation signals and two effectively separated spatial modes multiplexing transmission in an elliptical-core few-mode fiber (EC-FMF). The trench-assisted EC-FMF features favorable anti-bending performance with negligible power variations and stable mode intensity profiles under extreme bending conditions. Two spatial modes carrying CAP-16 signals for four users with net data rate of 5 Gb/s per user in the downstream transmission over 1.1-km EC-FMF is demonstrated. The measured mode crosstalk including mode (de)multiplexing and 1.1-km EC-FMF transmission is less than -18 dB and multiple input multiple output (MIMO) technique is not used in the experiment for simplicity. The measured optical signal-to-noise ratio (OSNR) penalties for the downstream transmission without or with crosstalk at a bit-error rate (BER) of 3.8x10-3 (7% forward error correction (FEC) threshold) are less than 1.8 dB and 3.1 dB, respectively. Larger transmission capacity and more users are expected when further employing higher dimension CAP signals and EC-FMF supporting more separable spatial modes. PMID- 29041604 TI - Optical PAM-4 signal generation using a silicon Mach-Zehnder optical modulator. AB - An analytic model is proposed to study the linearity performance of the silicon Mach-Zehnder optical modulator. According to the simulation results, we optimize the width of the silicon rib waveguide and the location of the PN junction to improve the linearity performance. The fabricated silicon Mach-Zehnder optical modulator has a spurious free dynamic range of 113.3 dB.Hz2/3 and 88.9 dB.Hz1/2 for the third-order intermodulation distortion and the second-order harmonic distortion. We also demonstrate the optical four-level pulse-amplitude-modulation (PAM-4) signal generation through the device. The generated optical PAM-4 signal is characterized at the rates up to 35 Gbaud. The BERs of the optical PAM-4 signals can reach 5.2?10-6 at 20 Gbaud and 6.6?10-5 at 32 Gbaud, which are much lower than the threshold of hard decision forward error correction (3.8 ?10-3). PMID- 29041605 TI - Quasi-optical frequency selective surface with phase compensation structure correcting the beam distortion. AB - In space-borne quasi-optical feed system, frequency selective surface (FSS) should meet both electrical properties and mechanical requirements. In the paper, we design and fabricate three FSSs to achieve these goals. We present a novel FFS with phase compensation structure correcting the beam distortion. The phase compensation structure consists of short-ended circular waveguide array, inspired by the idea of reflect array antenna. The first FSS meets the need of electrical performance, however, which is too weak to pass the mechanical test. The second one overcomes the former problem, but brings the aberration in reflection beam, due to the discontinuity of the reflection phase. The third one with phase compensation structure meets all the demands. The insertion phase of the unit cell compensates 119 and 183 GHz two reflection bands, reconfigures the field distributions on the cross section of beam waist simultaneously. What' more, this FSS extends the functionality of the original FSS. To some extent, the FSS with phase compensation structure shares the ellipsoidal reflector's pressure to adjust the beam. PMID- 29041606 TI - Development and performance evaluation of self-absorption-free laser-induced breakdown spectroscopy for directly capturing optically thin spectral line and realizing accurate chemical composition measurements. AB - A novel self-absorption-free laser-induced breakdown spectroscopy (SAF-LIBS) technique is proposed to directly capture the optically thin spectral line by matching the measured doublet atomic lines intensity ratios with the theoretical one. To realize the experimental SAF-LIBS, the integration time, the fiber collection angle, and the delay time are optimized. The optically thin conditions are validated by comparing the linearity of Boltzmann plots with the traditional self-absorption (SA) correction method and evaluating the SA coefficients. The applicability and limitation of SAF-LIBS on element concentration and laser energy are also discussed. Univariate quantitative analysis results show that, compared with ordinary LIBS, the average absolute error of aluminum concentration has been reduced by an order of magnitude, which proves that this SAF-LIBS technique is qualified to realize accurate chemical composition measurements. PMID- 29041607 TI - Efficient second harmonic generation in low-loss planar GaN waveguides. AB - We demonstrate low-loss GaN/AlGaN planar waveguides grown by molecular beam epitaxy on sapphire substrates. By using a proper AlGaN cladding layer and reducing surface roughness we reach <1dB/cm propagation losses at 633nm. These low propagation losses allow an efficient second harmonic generation using modal phase matching between a TM0 pump at 1260nm and a TM2 second harmonic at 630nm. A maximal power conversion of 2% is realized with an efficiency of 0.15%.W-1cm-2. We provide a modelling that demonstrates broadband features of GaN/AlGaN platform by showing second harmonic wavelengths tunability from the visible up to the near infrared spectral region. We discuss drawbacks of modal phase matching and propose a novel solution which allows a drastic improvement of modal overlaps with the help of a planar polarity inversion. This new approach is compatible with low propagation losses and may allow as high as 100%.W-1cm-2 conversion efficiencies in the future. PMID- 29041608 TI - Improving the resolution and the throughput of spectrometers by a digital projection slit. AB - The contradiction between spectral resolution and throughput for the optical spectrometers is still a problem that needs to be solved. We introduce a simple and feasible method of the digital projection slit (DPS), which can improve both the spectral resolution and throughput of the optical spectrometer. The DPS spectrum is accurate and reliable without using the optical transfer function (OTF) of the optical spectrometer. The method has been successfully applied in the fiber spectrometer and the Raman spectrometer. The resolution of the recovered spectra can be increased by ~3 times and the throughput can be increased by ~5 times. PMID- 29041609 TI - Optical chirality breaking in a bilayered chiral metamaterial. AB - We propose a planar optical bilayered chiral metamaterial, which consists of periodic metallic arrays of two L-shaped structures and a nanorod twisted on both sides of a dielectric slab, to investigate the optical chirality breaking effect by using finite-difference time-domain (FDTD) method. Even the metamaterial is with chiral symmetry, an optical chirality breaking window in the asymmetric transmission pass band is obtained in chiral metamaterial structure. We analyze the plasmonic mode properties and attribute the mechanism of the optical chirality breaking effect to the plasmonic analogue of EIT. The optical chirality breaking window can be modulated by changing the geometric parameters of the nanorods in the structure. PMID- 29041610 TI - Continuous axial scanning of a Gaussian beam via beam steering. AB - We propose and demonstrate experimentally the transfer of one spatial degree of freedom of a laser beam onto another one. Using a multi-plane light conversion device (MPLC) and a modal analysis, we designed a passive setup with immediate response which couples a displacement and tilt in the transverse plane to a longitudinal shift of the focus point of a beam. With this design, we demonstrated a shift of the focal point of the output beam by 4 zR along the propagation axis. PMID- 29041611 TI - Dynamic spontaneous emission control of an optical emitter coupled to plasmons in strained graphene. AB - Spontaneous emission control of an optical emitter is critical for many applications, such as in the fields of sensing, integrated photonics and quantum optics. Integrating optical emitters with a mechanical system can provide an avenue for strain sensors as well. Here, the dynamic spontaneous emission modification of an emitter coupled to graphene by uniaxial strain is demonstrated. Our results show that the emission rate can be controlled by tuning the strain of graphene, which depends on the polarized orientation of the emitter. More specifically, the decay rate can be enhanced for several times if the emitter is polarized perpendicular to graphene under strain. Azimuthal angle dependent oscillation of decay rate exists for the emitter polarized parallel to the graphene. Moreover, the controllable decay of the emitter comes from the anisotropic plasmons excitation in strained graphene, which is verified by the corresponding isofrequency contours of plasmons. The strain engineering provides a new platform for dynamic spontaneous emission modulation of emitters coupled with graphene, which opens up intriguing possibilities for the design of strain sensors and quantum devices. PMID- 29041612 TI - Effect of two-center interference on molecular ionization in multiphoton ionization regime. AB - Using solution of the full three-dimensional time-dependent Schrodinger equation (TDSE) in prolate spheroidal coordinates, we investigate the orientation dependence of ionization of H2+ in near-infrared laser fields. It is found that, the ionization probability decreases as a function of the alignment angle in tunneling ionization regime, while it ascends with the increase of orientation angle in multiphoton ionization regime for the internuclear distance R=2 a.u. Furthermore, the result obtained by the length gauge strong-field approximation theory is in qualitative agreement with that calculated by the TDSE but the radiation gauge strong-field approximation and molecular ADK theories fail to reproduce the TDSE result. Analysis indicates that the above intriguing feature can be ascribed to the interference between the partial electron wave packets emitted from different molecular cores, which becomes evident at low laser intensity due to increased width of the initial mechanical momentum of the photoelectron at ionization moment. In addition, when the internuclear distance increases to R=4 a.u., the ionization yields decrease vs alignment angle in both tunneling and multiphoton regimes since the electron wavefunction of the 1sigmag orbit is more concentrated in the molecular axis than that of R=2 a.u. PMID- 29041613 TI - Performance enhanced DDO-OFDM system with adaptively partitioned precoding and single sideband modulation. AB - As a promising solution for short-to-medium transmission systems, direct detection optical orthogonal frequency division multiplexing (DDO-OFDM) or discrete multi-tone (DMT) has been intensively investigated in last decade. Benefitting from the advantages of peak-to-average power (PAPR) reduction and signal-to-noise ratio (SNR) equalization, precoding techniques are widely applied to enhance the performance of DDO-OFDM systems. However, the conventional method of partitioning precoding sets limits the ability of precoding schemes to optimize the SNR variation and the allocation of modulation formats. Thus, the precoding transmission systems are hard to reach the capacity that traditional bit-power loading (BPL) techniques, like the Levin-Campello (LC) algorithm, can achieve. In this paper, we investigate the principle of SNR variation for precoded DDO-OFDM systems and theoretically demonstrate that the SNR equalization effect of precoding techniques is actually determined by the noise equalization process. Based on this fact, we propose an adaptively partitioned precoding (APP) algorithm to unlock the ability to control the SNR of each subcarrier. As demonstrated by the simulation and experimental results, the proposed APP algorithm achieves the transmission capacity as high as the LC algorithm and has nearly 1 dB PAPR reduction. Besides, the look-up table (LUT) operation ensures low complexity of the proposed APP algorithm compared with LC algorithm. To avoid severe chromatic dispersion (CD) induced spectral fading, single sideband (SSB) modulation is also implemented. We find that SSB modulation can reach the capacity of double sideband (DSB) modulation in optical back-to-back (OB2B) configuration by optimizing the modulation index. Therefore, the APP based SSB DDO-OFDM scheme can sufficiently enhance the performance of cost-sensitive short to-medium reach optical fiber communication systems. PMID- 29041614 TI - Fast two-snapshot structured illumination for temporal focusing microscopy with enhanced axial resolution. AB - We present a new two-snapshot structured light illumination (SLI) reconstruction algorithm for fast image acquisition. The new algorithm, which only requires two mutually pi phase-shifted raw structured images, is implemented on a custom-built temporal focusing fluorescence microscope (TFFM) to enhance its axial resolution via a digital micromirror device (DMD). First, the orientation of the modulated sinusoidal fringe patterns is automatically identified via spatial frequency vector detection. Subsequently, the modulated in-focal-plane images are obtained via rotation and subtraction. Lastly, a parallel amplitude demodulation method, derived based on Hilbert transform, is applied to complete the decoding processes. To demonstrate the new SLI algorithm, a TFFM is custom-constructed, where a DMD replaces the generic blazed grating in the system and simultaneously functions as a diffraction grating and a programmable binary mask, generating arbitrary fringe patterns. The experimental results show promising depth discrimination capability with an axial resolution enhancement factor of 1.25, which matches well with the theoretical estimation, i.e, 1.27. Imaging experiments on pollen grain and mouse kidney samples have been performed. The results indicate that the two-snapshot algorithm presents comparable contrast reconstruction and optical cross-sectioning capability than those adopting the conventional root-mean-square (RMS) reconstruction method. The two-snapshot method can be readily applied to any sinusoidally modulated illumination systems to realize high-speed 3D imaging as less frames are required for each in-focal plane image restoration, i.e., the image acquisition speed is improved by 2.5 times for any two-photon systems. PMID- 29041615 TI - Generation of spatio-temporal extreme events in noise-like pulses NPE mode-locked fibre laser. AB - We experimentally study spatio-temporal generation of extreme events in the radiation of NPE mode-locked fibre laser generating noise-like pulses. We show that new pulses starts from high-intensity spatio-temporal structure which consist of mainly 3 subsequent pulses which are both separated over fast and slow evolution time. Statistical analysis of the noise-like pulse evolution over round trips shows that the pulse width and intensity varies with a period of around 85 round-trips which does not change from pulse to pulse. The intensity probability density function has a heavy tail originated only from events of pulse formation. PMID- 29041616 TI - Propagation and absorption of light in planar dielectric waveguides with two dimensional semiconductors. AB - Strong optical responses of atomically thin two-dimensional (2D) semiconductors make them attractive candidates for integration into various photonic and optoelectronic structures. We discuss some fundamental effects of such integration into planar dielectric waveguides by demonstrating that a substantial modification of the spectrum of waveguide modes can occur due to high in-plane polarizability of 2D layers. Our calculations illustrate both the conceptual possibilities associated with sharp excitonic resonances as well as the results obtained with the experimentally assessed polarizability of monolayer MoS2 over a broad spectral range. We point out that waveguide structures could also enable the tunable absorption by 2D semiconductors of the light that propagates along them, a modality quite different from the traditional light harvesting geometry. PMID- 29041617 TI - Polarization independent subtractive color printing based on ultrathin hexagonal nanodisk-nanohole hybrid structure arrays. AB - Structural color printing based on plasmonic metasurfaces has been recognized as a promising alternative to the conventional dye colorants, though the color brightness and polarization tolerance are still a great challenge for practical applications. In this work, we report a novel plasmonic metasurface for subtractive color printing employing the ultrathin hexagonal nanodisk-nanohole hybrid structure arrays. Through both the experimental and numerical investigations, the subtractive color thus generated taking advantages of extraordinary low transmission (ELT) exhibits high brightness, polarization independence and wide color tunability by varying key geometrical parameters. In addition, other regular patterns including square, pentagonal and circular shapes are also surveyed, and reveal a high color brightness, wide gamut and polarization independence as well. These results indicate that the demonstrated plasmonic metasurface has various potential applications in high-definition displays, high-density optical data storage, imaging and filtering technologies. PMID- 29041618 TI - Trade-offs between structural integrity and acquisition time in stochastic super resolution microscopy techniques. AB - The applicability of widefield stochastic microscopy, such as PALM or STORM, is limited by their long acquisition times. Images are produced from the accumulation of a large number of frames that each contain a scarce number of super-resolved localizations. We show that the random and uneven distribution of localizations leads to a specific type of trade-off between the spatial and temporal resolutions. We derive analytical predictions for the minimal time required to obtain a reliable image at a given spatial resolution. We find that the image completion time scales logarithmically with the ratio of the image size to the spatial resolution volume, with second order corrections due to spurious localization within the background noise. We validate our predictions against experimental localization sequences of labeled microtubule filaments obtained by STORM. Our theoretical framework makes it possible to compare the efficiency of emitters, define optimal labeling strategies, and allow implementation of a stopping criterion for data acquisitions that can be performed using real-time monitoring algorithms. PMID- 29041619 TI - Near-field thermal upconversion and energy transfer through a Kerr medium. AB - We present an approach for achieving large Kerr chi(3)-mediated thermal energy transfer at the nanoscale that exploits a general coupled-mode description of triply resonant, four-wave mixing processes. We analyze the efficiency of thermal upconversion and energy transfer from mid- to near-infrared wavelengths in planar geometries involving two slabs supporting far-apart surface plasmon polaritons and separated by a nonlinear chi(3) medium that is irradiated by externally incident light. We study multiple geometric and material configurations and different classes of intervening mediums-either bulk or nanostructured lattices of nanoparticles embedded in nonlinear materials-designed to resonantly enhance the interaction of the incident light with thermal slab resonances. We find that even when the entire system is in thermodynamic equilibrium (at room temperature) and under typical drive intensities ~ W/MUm2, the resulting upconversion rates can approach and even exceed thermal flux rates achieved in typical symmetric and non-equilibrium configurations of vacuum-separated slabs. The proposed nonlinear scheme could potentially be exploited to achieve thermal cooling and refrigeration at the nanoscale, and to actively control heat transfer between materials with dramatically different resonant responses. PMID- 29041620 TI - Forward bias operation of silicon photonic Mach Zehnder modulators for RF applications. AB - In this paper, we demonstrate that forward bias (+0.9V) of a high-speed silicon (Si) optical Mach-Zehnder modulator (MZM) increases the radio-frequency (RF) link gain by 30 dB when compared to reverse bias operation (-8V). RF applications require tunable, narrowband electro-optic conversion with high gain to mitigate noise of the optical receiver and realize high RF spur-free dynamic range. Compared to reverse bias, the forward bias gain rolls off more rapidly but offers higher RF link gain improvement of more than 13.2 dB at 20 GHz. Furthermore, forward bias is shown to result in comparable spurious-free dynamic range (SFDR: 104.5 dB.Hz2/3). We demonstrate through an analytical dc transfer curve the existence of simultaneous high gain and OIP3 and verify the theoretical results with measurement under forward bias at a bias point of around +0.9 V. PMID- 29041621 TI - Removal of ring artifacts in microtomography by characterization of scintillator variations. AB - Ring artifacts reduce image quality in tomography, and arise from faulty detector calibration. In microtomography, we have identified that ring artifacts can arise due to high-spatial frequency variations in the scintillator thickness. Such variations are normally removed by a flat-field correction. However, as the spectrum changes, e.g. due to beam hardening, the detector response varies non uniformly introducing ring artifacts that persist after flat-field correction. In this paper, we present a method to correct for ring artifacts from variations in scintillator thickness by using a simple method to characterize the local scintillator response. The method addresses the actual physical cause of the ring artifacts, in contrary to many other ring artifact removal methods which rely only on image post-processing. By applying the technique to an experimental phantom tomography, we show that ring artifacts are strongly reduced compared to only making a flat-field correction. PMID- 29041622 TI - 2.4 THz/s continuously linearly frequency-modulated Nd:YVO4 laser. AB - We demonstrate a linearly frequency-modulated laser from a laser diode (LD) pumped Nd:YVO4 laser. A fast frequency tuning of 2.40 THz/s with a tuning range of 6 GHz is achieved in LD pumped Nd:YVO4 1064 nm laser by using RbTiOPO4 (RTP) crystals as the frequency modulator. The continuous tuning range is more than 3 times the longitudinal mode spacing of the resonator. The maximum output power of frequency-modulated laser reaches 160 mW at 1064 nm. Linewidth of the single frequency laser is measured to be 190 kHz by a delay self-heterodyne interferometer. A deviation lower than 60 MHz is obtained during linear modulation. PMID- 29041623 TI - Near-field thermal radiation of deep- subwavelength slits in the near infrared range. AB - We numerically investigate the thermal radiation of one-dimensional deep subwavelength slits in the near infrared range. Using numerical calculations of single-slit and multi-slit structures, we find that high-level radiation efficiency can be achieved for a wide spectrum when ultra-thin intermediate layers are used, and it is less affected by structure parameters. The underlying mechanisms involve Surface Plasmon Polaritons resonance and Fabry-Perot interference at each slit and the interaction between adjacent slits. This structure helps understand and improve the design of thermal radiation control devices. PMID- 29041624 TI - Attenuation of model hollow-core, anti-resonant fibres. AB - An analytic expression is obtained for the confinement loss of model anti resonant fibres consisting of concentric regions of air and glass. Hankel functions in the regions surrounding the air core are approximated by their asymptotic form; apart from this, results are correct to leading order in the small parameter 1/(k0rc), where rc is the core radius and k0 the free space wavenumber. The results extend and generalise previous solutions for propagation in a hollow glass tube and a thin-walled capillary. Comparison with exact numerical calculations shows that the analytic expression provides an accurate description of the loss, including its dependence on the mode, the core radius and the widths of the surrounding glass and air regions. The relevance of the results to the recent generation of hollow-core, anti-resonant photonic crystal fibres is discussed. PMID- 29041625 TI - Rigorous full-wave calculation of optical forces on dielectric and metallic microparticles immersed in a vector Airy beam. AB - Based on the generalized Lorenz-Mie theory and the Maxwell stress tensor approach we present the first rigorous full-wave solution of the optical forces acting on spherical microparticles immersed in a two-dimensional vector Airy beam beyond the paraxial approximation. The critical aspect lies in evaluating efficiently and accurately the partial wave expansion coefficients of the incident Airy beam, which are achieved by using the vector angular spectrum representation for a variety of polarizations. The optical field distributions are then simulated to show the self-accelerating and self-healing effects of the Airy beam. The dielectric and gold microparticles are shown to be trapped within the main lobe or the nearby side-lobes mostly by the transverse gradient optical force while driven forward along the parabolic trajectory of the Airy beam by the longitudinal scattering force. It is thus demonstrated theoretically that the vector Airy beam has the capability of precisely transporting both dielectric and metallic microparticles along the prespecified curved paths. PMID- 29041626 TI - Modelocking of a thin-disk laser with the frequency-doubling nonlinear-mirror technique. AB - We demonstrate a frequency-doubling nonlinear-mirror (NLM) modelocked thin-disk laser. This modelocking technique, composed of an intracavity second harmonic crystal in combination with a dichroic output coupler, offers robust operation decoupled from cavity stability (as in semiconductor saturable absorber mirror (SESAM) modelocking) combined with an ultrafast saturable loss and high modulation depth (as in Kerr-lens modelocking (KLM)). With our NLM diode-pumped Yb:YAG thin-disk laser we achieve 21 W of average power at 323-fs pulse duration, which is an order of magnitude shorter than the previously obtained duration with the same technique in bulk lasers. Using these first results, we present a theoretical model for the NLM technique, which accurately predicts its loss modulation properties and the shortest achievable pulse duration without relying on any fitting parameters. Based on this simulation, we expect that the NLM technique will enable thin-disk lasers with average power of more than 100 W, with potentially sub-200 fs pulses. This could potentially solve the pulse duration limitations with SESAM modelocked Yb:YAG thin-disk lasers without imposing strong cavity stability constraints such as in KLM. PMID- 29041627 TI - 71-Mbit/s ultraviolet-B LED communication link based on 8-QAM-OFDM modulation. AB - A demonstration of ultraviolet-B (UVB) communication link is implemented utilizing quadrature amplitude modulation (QAM) orthogonal frequency-division multiplexing (OFDM). The demonstration is based on a 294-nm UVB-light-emitting diode (UVB-LED) with a full-width at half-maximum (FWHM) of 9 nm and light output power of 190 MUW, at 7 V, with a special silica gel lens on top of it. A -3-dB bandwidth of 29 MHz was measured and a high-speed near-solar-blind communication link with a data rate of 71 Mbit/s was achieved using 8-QAM-OFDM at perfect alignment. 23.6 Mbit/s using 2-QAM-OFDM when the angle subtended by the pointing directions of the UVB-LED and photodetector (PD) is 12 degrees, thus establishing a diffuse-line-of-sight (LOS) link. The measured bit-error rate (BER) of 2.8 *10 4 and 2.4 *10-4, respectively, are well below the forward error correction (FEC) criterion of 3.8 *10-3. The demonstrated high data-rate OFDM-based UVB communication link paves the way for realizing high-speed non-line-of-sight free space optical communications. PMID- 29041628 TI - 500 W level MOPA laser with switchable output modes based on active control. AB - We report a high power transverse-mode-switchable fiber laser in a master oscillator power amplifier (MOPA) configuration. The output modes of a few-mode fiber amplifier can be actively controlled by the input polarization state of the fundamental mode seed laser using SPGD algorithm. A fast, stable and safety mode switching between LP01 and LP11 modes is achieved in the amplifier at output power of 500 W level. PMID- 29041629 TI - Practical approximation of the oceanic refractive index spectrum. AB - Oceanic turbulence is described by the oceanic refractive-index spectrum (ORIS), which considers several important hydrodynamic parameters. Based on ORIS, many optical oceanic quantities can be calculated using numerical integration. However, it is difficult to calculate the analytical solutions. In this paper, an approximate oceanic temperature spectrum is obtained by multiplying the non Kolmogorov spectrum with a correction factor. By analogy with the obtained temperature spectrum, an approximate salinity spectrum and an approximate coupling spectrum are obtained. A linear summation of these three approximate spectra forms the approximate form of ORIS. The approximate form of ORIS we obtained helps calculate the analytical solutions of the relevant oceanic optical quantities. PMID- 29041630 TI - Unidirectional edge states in topological honeycomb-lattice membrane photonic crystals. AB - Photonic analogs of electronic systems with topologically non-trivial behavior such as unidirectional scatter-free propagation has tremendous potential for transforming photonic systems. Like in electronics topological behavior can be observed in photonics for systems either preserving time-reversal (TR) symmetry or explicitly breaking it. TR symmetry breaking requires magneto-optic photonics crystals (PC) or generation of synthetic gauge fields. For on-chip photonics that operate at optical frequencies both are quite challenging because of poor magneto optic response of materials or substantial nanofabrication challenges in generating synthetic gauge fields. A recent work by Ma, et al. [Phys. Rev. Lett.114, 223901 (2015)] based on preserving pseudo TR symmetry offers a promising design scheme for observing unidirectional edge states in a modified honeycomb photonic crystal (PC) lattice of circular rods that offers encouraging alternatives. Here we propose through bandstructure calculations the inverse system of modified honeycomb PC of circular holes in a dielectric membrane which is more attractive from fabrication standpoint for on-chip applications. We observe trivial and non-trivial bandgaps as well as unidirectional edge states of opposite helicity propagating in opposite directions at the interface of a trivial and non-trivial PC structures. Around 1550nm operating wavelength ~55nm of bandwidth is possible for practicable values of design parameters (lattice constant, hole radii, membrane thickness, scaling factor etc.) and robust to reasonable variations in those parameters. PMID- 29041631 TI - Highly improved, non-localized field enhancement enabled by hybrid plasmon of crescent resonator/graphene in infrared wavelength. AB - The development of surface enhanced infrared absorption has been constrained by the limited field enhancement and narrow-band resonance of commonly used metal resonators. In this theoretical work, the design of a crescent resonator (CR) combined with graphene-enabled plasmon tuning is proposed to settle the drawbacks. The CR is similar to a split ring resonator (SRR), but exhibits a much improved field enhancement. The influence of graphene on the field enhancement of the CR has been systematically investigated. Coupling from localized plasmon of CR to propagating plasmon of graphene has been observed, and the constructive interference of the plasmon wave has led to not only better enhancement inside the gap but also usable enhancements all over the graphene film, which go beyond the localized nature of metal plasmons. PMID- 29041632 TI - Wavelength- and OAM-tunable vortex laser with a reflective volume Bragg grating. AB - Vortex beams carrying orbital angular momentum (OAM) have been recently investigated intensely in optical communication systems, as using OAM mode multiplexing simultaneously with other conventional multiplexing techniques is the key to further expand data capacity. This article demonstrates a wavelength- and OAM-tunable vortex laser at 1.6 um in an Er:YAG system. For the first time to the best of our knowledge, a reflective volume Bragg grating (VBG) was theoretically and experimentally proved to be an effective OAM-preserving wavelength selector inside the laser cavity. A z-shaped laser cavity employing a VBG as a folding mirror was constructed for the direct generation of vortex beams, and we finally obtained wavelength-tunable beams of five OAM states (0, +/ h, and +/- 2h) with a narrow bandwidth less than 0.04 nm. This laser supplies a new way for optical communication by combining the spatial degree of freedom for multiplexing information channels with the conventionally used wavelength domains in packable and robust resonant cavity. PMID- 29041633 TI - High dynamic range head mounted display based on dual-layer spatial modulation. AB - The human visual system can perceive a much wider range of contrast than the addressable dynamic range afforded by the state-of-art head mounted displays (HMD). Increasing the dynamic range of HMDs becomes critical especially for augmented reality applications where the dynamic range of outdoor scenes can be as large as 14 orders of magnitude. In this paper, we present the integrated work of the design, implementation, calibration, and image-rendering algorithm of a high dynamic range HMD system. By using a pair of LCoS microdisplays as the spatial light modulators, accompanied with the relay optics to optically overlay the modulation layers, we demonstrate the reconstruction of high dynamic range images with high accuracy. PMID- 29041634 TI - Large area nanoimprint enables ultra-precise x-ray diffraction gratings. AB - A process for fabrication of ultra-precise diffraction gratings for high resolution x-ray spectroscopy was developed. A grating pattern with constant or variable line spacing (VLS) is recorded on a quartz plate by use of e-beam lithography with nanometer scale accuracy of the groove placement. The pattern is transferred to a massive grating blank by large area nanoimprint followed by dry or/and wet etching for groove shaping. High fidelity of the nanoimprint transfer step was confirmed by differential wavefront measurements. Successful implementation of the suggested fabrication approach was demonstrated by fabrication of a lamellar 900 lines/mm VLS grating for a soft x-ray fluorescence spectrometer. PMID- 29041635 TI - Ultra-thin infrared metamaterial detector for multicolor imaging applications. AB - The next generation of infrared imaging systems requires control of fundamental electromagnetic processes - absorption, polarization, spectral bandwidth - at the pixel level to acquire desirable information about the environment with low system latency. Metamaterial absorbers have sparked interest in the infrared imaging community for their ability to enhance absorption of incoming radiation with color, polarization and/or phase information. However, most metamaterial based sensors fail to focus incoming radiation into the active region of a ultra thin detecting element, thus achieving poor detection metrics. Here our multifunctional metamaterial absorber is directly integrated with a novel mid wave infrared (MWIR) and long-wave infrared (LWIR) detector with an ultra-thin (~lambda/15) InAs/GaSb Type-II superlattice (T2SL) interband cascade detector. The deep sub-wavelength metamaterial detector architecture proposed and demonstrated here, thus significantly improves the detection quantum efficiency (QE) and absorption of incoming radiation in a regime typically dominated by Fabry-Perot etalons. Our work evinces the ability of multifunctional metamaterials to realize efficient wavelength selective detection across the infrared spectrum for enhanced multispectral infrared imaging applications. PMID- 29041636 TI - True thermal antenna with hyperbolic metamaterials. AB - A thermal antenna is an electromagnetic source that emits in its surrounding a spatially coherent field in the infrared frequency range. Usually, its emission pattern changes with the wavelength so that the heat flux it radiates is weakly directive. Here, we show that a class of hyperbolic materials of type II possess a Brewster angle, which is weakly dependent on the wavelength, so that they can radiate like a true thermal antenna with a highly directional and p-polarized heat flux. The realization of these sources could open a new avenue in the field of thermal management in far-field regime. PMID- 29041637 TI - Optical angular momentum derivation and evolution from vector field superposition. AB - Optical intrinsic angular momentum can be regarded as derivation from spatial superposition of optical vector fields embodied by spinning or/and spiraling the electric-field vector. We employ vectorial formulation derivation to comprehensively study all angular momentum contents of optical vector fields in arbitrary superposition states, including the longitudinal and transverse, spin and orbital (SAM and OAM) components. As for the orthogonal superposition fields, there inherently exists spin-orbit shift from longitudinal SAM to OAM, and the whole local spin flow manifests local multiple-fold helical trajectories. Especially, both the spin-orbit shift and transverse SAM could become considerable in the non-paraxial condition. Our studies here provide an explicit insight into the derivation and evolution, intrinsic correlations and salient features of various types of angular momentum components. PMID- 29041638 TI - Minimization of 1/fn phase noise in liquid crystal masks for reliable femtosecond pulse shaping. AB - Liquid-crystal spatial light modulators (LCM) are a common tool to tailor femtosecond laser pulses. The phase stability of 1 kHz, sub-20 fs visible shaped and unshaped pulses are investigated. Our results show that the spectral phase after the LCM varies from pulse to pulse leading to strong deviations from the predicted pulse shapes. This phase instability is generated only by LCM and is strongly temperature dependent. Based on the experimental data, a numerical model for the phase was developed that takes the temperature-dependent phase instability as well as pixel coupling across the LCM into account. Phase stability after the LCM can be improved by an order of magnitude by combining the control the temperature of the LCM and by using rapid-scan averaging. Reliable pulse shapes on a pulse-to-pulse basis are crucial, especially in coherent control experiments, where small differences between pulse shape are important. PMID- 29041639 TI - Fluid jet-array parallel machining of optical microstructure array surfaces: publisher's note. AB - This publisher's note amends the funding section of [Opt. Express 25, 22710 (2017)]. PMID- 29041640 TI - Fiber optic mechanical deformation sensors employing perpendicular photonic crystals. AB - Existing fiber optics (FOs)-based sensors, including mechanical deformation ones rely on structures embedded along the length of the FO. In this paper, we introduce and evaluate photonic crystals (PCs) embedded into FO cores acting as mechanical deformation sensors which are departing from this classical approach as the PCs are perpendicular to the length of the FO. Another noteworthy difference from classical FO-PC based sensors is that while classical ones rely on amplitude variations, the ones presented here use the phase variations of the electromagnetic components for assessing mechanical deformations. We start with a straightforward rectangular-lattice PC while also exploring a triangular-lattice PC. Light transmission simulations through the proposed FO-PC mechanical deformation sensors were performed using EM Explorer, and revealed their behaviors under small mechanical deformations. These simulations (of the rectangular-lattice and triangular-lattice PCs) show that these two FO-PC mechanical deformation sensors have roughly the same sensitivities while the triangular-lattice PC triggers at a lower threshold than the rectangular-lattice PC. PMID- 29041641 TI - All-reflective multiphoton microscope. AB - We present the design, construction, and characterization of a multiphoton microscope that uses reflective elements for beam shaping and steering. This compact all reflective design removes the adverse effects of dispersion on laser pulse broadening as well as chromatic aberration in the focusing of broadband and multicolored laser sources. The design of this system is discussed in detail, including aberrations analysis via ray-tracing simulation and opto-mechanical design. The resolution of this mirror based all-reflective microscope is characterized using fluorescent microbeads. The performance of the system at multiple wavelengths is investigated along with some potential multiphoton imaging and writing applications. PMID- 29041642 TI - Weak-light vector rogue waves, breathers, and their Stern-Gerlach deflection via electromagnetically induced transparency. AB - We propose a scheme for generating and manipulating vector (or two-component) optical rogue waves using Akhmediev and Kuznetsov-Ma breathers in a coherent atomic system with an M-type five-level configuration via electromagnetically induced transparency (EIT). We show that the propagation velocity of these nonlinear excitations can be reduced to 10-4c and their generation power can be lowered to microwatts. We also show that the motion trajectories of the two polarization components in these excitations can be deflected significantly by using a transversal gradient magnetic field, similar to the Stern-Gerlach effect of an atomic beam. We find that the deflection angle can reach to 10-4 radian within the propagation distance of only several centimeters; at variance with the atomic Stern-Gerlach effect, the deflection angle can be made different for different polarization components and may be actively adjusted in a controllable way. The results obtained may have promising applications, including the precise measurement of gradient magnetic fields. PMID- 29041644 TI - Thermally induced mode loss evolution in the coiled ytterbium doped large mode area fiber. AB - We propose a model to calculate the thermally induced mode loss evolution in the coiled ytterbium doped large mode area (LMA) fiber. The mode loss evolution in the coiled conventional step index LMA 20/400 fiber is investigated. Meanwhile, a model of fiber amplifier considering thermally induced mode loss evolution is established. The higher order mode (HOM) suppression between a co-pumping scheme and counter-pumping scheme under the heat load are compared. The simulation shows that the HOM loss decreases quasi-exponentially with the heat load and the bending radius of the ytterbium doped fiber (YDF) should be optimized according to the heat load to achieve effectively single mode operation. Besides, the counter-pumping fiber amplifier shows much better HOM suppression than the co pumping fiber amplifier. The results in this paper will provide guidance in the design of novel ytterbium doped LMA fiber and the optimization of the high power single mode fiber amplifier. PMID- 29041643 TI - Spiral scanning X-ray fluorescence computed tomography. AB - Scanning X-ray fluorescence tomography was once considered impractical due to prohibitive measurement time requirements but is now common for investigating metal distributions within small systems. A recent look-ahead to the possibilities of 4th-generation synchrotron light sources [J. Synchrotron. Radiat. 21, 1031 (2014)] raised the possibility of a spiral-scanning measurement scheme where motion overheads are almost completely eliminated. Here we demonstrate the spiral scanning measurement and use Fourier ring correlation analysis to interrogate sources of resolution degradation. We develop an extension to the Fourier ring correlation formalism that enables direct determination of resolution from the measured sinogram data, greatly enhancing its power as a diagnostic tool for computed tomography. PMID- 29041645 TI - Single-shot 3D motion picture camera with a dense point cloud. AB - We discuss physical and information theoretical limits of optical 3D metrology. Based on these principal considerations we introduce a novel single-shot 3D movie camera that almost reaches these limits. The camera is designed for the 3D acquisition of macroscopic live scenes. Like a hologram, each movie-frame encompasses the full 3D information about the object surface and the observation perspective can be varied while watching the 3D movie. The camera combines single shot ability with a point cloud density close to the theoretical limit. No space bandwidth is wasted by pattern codification. With 1-megapixel sensors, the 3D camera delivers nearly 300,000 independent 3D points within each frame. The 3D data display a lateral resolution and a depth precision only limited by physics. The approach is based on multi-line triangulation. The requisite low-cost technology is simple. Only two properly positioned synchronized cameras solve the profound ambiguity problem omnipresent in 3D metrology. PMID- 29041646 TI - Designing freeform TIR optical elements using supporting quadric method. AB - The supporting quadric method (SQM) is a versatile method for the design of a wide class of freeform optical elements. In the present work, a novel SQM-based approach for the computation of total internal reflection (TIR) optical elements generating arbitrary narrow-angle light distributions is proposed. High performance of the presented method is confirmed by two designed optical elements: the first one forms an illuminance distribution in a square region with angular size of 17 degrees , and the second one generates a bat-shaped uniformly illuminated area with an angular size of 43.6 degrees x 22.6 degrees . The lighting efficiencies in both cases exceed 90%, and the relative root-mean-square deviations of the generated light distributions from the required ones are less than 6%. PMID- 29041648 TI - Numerical investigation of nonlinear sound propagation of photoacoustic tomography imaging. AB - Almost all reconstruction methods in photoacoustic tomography (PAT) have been developed by assuming that sound propagation is linear, which is valid for ordinary PAT applications but would become inappropriate when the sound amplitude is higher than a certain threshold level. In the current study, we investigate the effect of nonlinear sound propagation on PAT by using a numerical method which utilizes the time-reversal (TR) technique. In the forward stage, the Euler equations are solved to simulate nonlinear sound propagation, and the flow variables (pressure, velocity and density) are recorded by an array of virtual sensors. The recorded data are used to reconstruct the initial fields within the computational domain by using both linear and nonlinear TR techniques. Furthermore, TR results constructed with and without the recorded flow velocity field, which is difficult to measure for practical applications, have also been compared. The current results show that nonlinear reconstructions produce images with superior clarity, resolution and contrast compared to those reconstructed by the linear method, particularly when the recorded velocity field is used in the reconstruction. PMID- 29041647 TI - Distributed backscattering in production O-band Si nanophotonic waveguides. AB - Backscattering in integrated photonic waveguides can significantly impact the performance of optical systems. However, it has not been extensively studied in the literature and measurements on waveguides fabricated in production foundry processes are particularly lacking in view of their importance to technology. Here we experimentally measure and analyze distributed backscattering in various production O-band silicon photonic waveguides. We find the measured backscattering to scale from -18 to -36 dB/mm. Measured trends across waveguide geometry and polarization are consistent with stochastic defects on waveguide sidewalls being the dominant source of distributed backscattering in production Si waveguides. For production SiNx waveguides, both sidewall and cladding defects need to be considered to fit measured trends. PMID- 29041649 TI - Exploring tunneling time by instantaneous ionization rate in strong-field ionization. AB - A quantum approach is presented to investigate tunneling time by supervising the instantaneous ionization rate. We find that the ionization rate peak appearance lags behind the maximum of electric field intensity for a linearly polarized pulse. This time delay interval can be taken to characterize the tunneling time. In addition, if an atom with anisotropic electronic distribution is exposed to a circular polarized pulse, the tunneling time can also be measured and defined as the time difference between the instant of the largest ionization rate and the moment when the electric field points in the maximum of the bound electron density. PMID- 29041650 TI - High harmonic generation from axial chiral molecules. AB - Axial chiral molecules, whose stereogenic element is an axis rather than a chiral center, have attracted widespread interest due to their important application, such as asymmetric synthesis and chirality transfer. We investigate high harmonic generation from axial chiral molecules with bichromatic counterrotating circularly polarized laser fields. High harmonic generation from three typical molecules: (Sa)-3-chloropropa-1,2-dien-1-ol, propadiene, and (Ra)-2,3-pentadiene is simulated with time-dependent density-functional theory and strong field approximation. We found that harmonic spectra for 3D oriented axial chiral molecules exhibit obvious circular dichroism. However, the circular dichroism of High harmonic generation from an achiral molecule is much trivial. Moreover, the dichroism of high harmonic generation still exists when axial chiral molecules are 1D oriented,such as (Sa) -3-chloropropa-1,2-dien-1-ol. For a special form of axial chiral molecules with the formula abC=C=Cab (a, b are different substituents), like (Ra)-2,3-pentadiene, the dichroism discriminations disappear when the molecules are only in 1D orientation. The circular dichroism of high harmonic generation from axial chiral molecules is well explained by the trajectory analysis based on the semiclassical three-step mechanism. PMID- 29041651 TI - Full three-dimensional isotropic carpet cloak designed by quasi-conformal transformation optics. AB - A fully three-dimensional carpet cloak presenting invisibility in all viewing angles is theoretically demonstrated. The design is developed using transformation optics and three-dimensional quasi-conformal mapping. Parametrization strategy and numerical optimization of the coordinate transformation deploying a quasi-Newton method is applied. A discussion about the minimum achievable anisotropy in the 3D transformation optics is presented. The method allows to reduce the anisotropy in the cloak and an isotropic medium could be considered. Numerical simulations confirm the strategy employed enabling the design of an isotropic reflectionless broadband carpet cloak independently of the incident light direction and polarization. PMID- 29041652 TI - Method of single-step full parallax synthetic holographic stereogram printing based on effective perspective images' segmentation and mosaicking. AB - With the principle of ray-tracing and the reversibility of light propagation, a new method of single-step full parallax synthetic holographic stereogram printing based on effective perspective images' segmentation and mosaicking (EPISM) is proposed. The perspective images of the scene are first sampled by a virtual camera and the exposing images, which are called synthetic effective perspective images, are achieved using the algorithm of effective perspective images' segmentation and mosaicking according to the propagation law of light and the viewing frustum effect of human eyes. The hogels are exposed using the synthetic effective perspective images in sequence to form the whole holographic stereogram. The influence of modeling parameters on the reconstructed images are also analyzed, and experimental results have demonstrated that the full parallax holographic stereogram printing with the proposed method could provide good reconstructed images by single-step printing. Moreover, detailed experiments with different holographic element sizes, different scene reconstructed distances, and different imaging planes are also analyzed and implemented. PMID- 29041653 TI - Uniform emission, constant wavevector silicon grating surface emitter for beam steering with ultra-sharp instantaneous field-of-view. AB - We report on uniform emission intensity profile, uniform propagation constant silicon gratings for beam steering application with ultra-sharp instantaneous field-of-view (IFOV). To achieve uniform emission intensity across relatively long emission length, we designed a custom grating with varying Si3N4 width and duty cycle while maintaining a uniform propagation constant for relatively narrow divergence emission pattern. We designed and fabricated the custom Si3N4/Si grating with the varying Si3N4 width/duty cycle together with the reference Si3N4/Si grating with a constant 50:50 duty cycle. The custom grating demonstrated the beam steering angle value of 6.6 degrees by sweeping wavelength between 1530 nm and 1575 nm with the emission length over 1 mm. The measured IFOV based on the 3-dB beamwidth values of the far field patterns for the TE polarization are 0.10 degrees and 0.75 degrees for the custom grating and for the reference grating, respectively. The custom grating also indicates mode selective behavior due to the perturbation of propagation constant for input modes other than TE polarization. The measured TE-mode to TM-mode suppression ratio for the custom grating is approximately 8.2 dB peak-to-peak measured at far field. PMID- 29041654 TI - Tight focusing of laser light using a chromium Fresnel zone plate. AB - Using near-field scanning microscopy, we demonstrate that a 15-um zone plate fabricated in a 70-nm chromium film sputtered on a glass substrate and having a focal length and outermost zone's width equal to the incident wavelength lambda = 532 nm, focuses a circularly polarized Gaussian beam into a circular subwavelength focal spot whose diameter at the full-width of half-maximum intensity is FWHM = 0.47lambda. This value is in near-accurate agreement with the FDTD-aided numerical estimate of FWHM = 0.46lambda. When focusing a Gaussian beam linearly polarized along the y-axis, an elliptic subwavelength focal spot is experimentally found to measure FWHMx = 0.42lambda (estimated value FWHMx = 0.40lambda) and FWHMy = 0.64lambda. The subwavelength focal spots presented here are the tightest among all attained so far for homogeneously polarized beams by use of non-immersion amplitude zone plates. PMID- 29041655 TI - Single mode fiber based delivery of OAM light by 3D direct laser writing. AB - We demonstrate orbital-angular momentum (OAM) light up to a topological charge of l=3 behind a single mode fiber. Femtosecond 3D direct laser writing is used to fabricate spiral phase plates of l=1,2 and 3, composed of 10 discrete steps, on the tip of single mode optical fibers. These structures efficiently convert out coupled light from the fiber at 785 nm wavelength into optical vortex beams carrying an orbital-angular momentum of lhper photon. Far field intensity patterns and interferograms of the OAM beams are recorded using a CCD camera. The results are in excellent agreement with numerical simulations obtained from the wave propagation method. PMID- 29041656 TI - Multimode fiber modal decomposition based on hybrid genetic global optimization algorithm. AB - Numerical modal decomposition (MD) is an effective approach to reveal modal characteristics in high power fiber lasers. The main challenge is to find a suitable multi-dimensional optimization algorithm to reveal exact superposition of eigenmodes, especially for multimode fiber. A novel hybrid genetic global optimization algorithm, named GA-SPGD, which combines the advantages of genetic algorithm (GA) and stochastic parallel gradient descent (SPGD) algorithm, is firstly proposed to reduce local minima possibilities caused by sensitivity to initial values. Firstly, GA is applied to search the rough global optimization position based on near- and far-field intensity distribution with high accuracy. Upon those initial values, SPGD algorithm is afterwards used to find the exact optimization values based on near-field intensity distribution with fast convergence speed. Numerical simulations validate the feasibility and reliability. PMID- 29041657 TI - Formation, element-migration and broadband luminescence in quantum dot-doped glass fibers. AB - All solid-state PbS quantum dot (QD)-doped glass precursor fibers avoiding crystallization during fiber-drawing process are successfully fabricated by melt in-tube technique. By subsequent heat treatment schedule, controllable crystallization of PbS QDs can be obtained in the glass precursor fibers, contributing to broad near-infrared emissions from PbS QD-doped glass fibers. Nevertheless, we find that element-migration and volatilization of sulfur simultaneously happen during the whole fiber-drawing process, because of the huge difference between the melting temperature of core glass and the fiber-drawing temperature. Element-migration pathways along the fiber length were revealed. Such PbS QD-doped glass fiber with broadband emissions will be a potential application as gain medium of broadband fiber amplifiers and fiber lasers. PMID- 29041658 TI - Endoscopic imaging of quantum gases through a fiber bundle. AB - We use a coherent fiber bundle to demonstrate the endoscopic absorption imaging of quantum gases. We show that the fiber bundle introduces spurious noise in the picture mainly due to the strong core-to-core coupling. By direct comparison with free-space pictures, we observe that there is a maximum column density that can be reliably measured using our fiber bundle, and we derive a simple criterion to estimate it. We demonstrate that taking care of not exceeding such maximum, we can retrieve exact quantitative information about the atomic system, making this technique appealing for systems requiring isolation form the environment. PMID- 29041659 TI - Silicon photonic filters with high rejection of both TE and TM modes for on-chip four wave mixing applications. AB - Wavelength selective filters represent one of the key elements for photonic integrated circuits (PIC) and many of their applications in linear and non-linear optics. In devices optimised for single polarisation operation, cross polarisation scattering can significantly limit the achievable filter rejection. An on-chip filter consisting of elements to filter both TE and TM polarisations is demonstrated, based on a cascaded ring resonator geometry, which exhibits a high total optical rejection of over 60 dB. Monolithic integration of a cascaded ring filter with a four-wave mixing micro-ring device is also experimentally demonstrated with a FWM efficiency of -22dB and pump filter extinction of 62dB. PMID- 29041660 TI - Ultra-compact polarization rotation in integrated silicon photonics using digital metamaterials. AB - Polarization controlling devices such as polarization splitters and rotators are critical elements in integrated-photonic circuits that function via polarization diversity schemes. Here, we present the design of an ultra-compact nanophotonic polarization rotator (NPR) that rotates the polarization state from TE to TM with a simulated extinction ratio of 23dB over a coupling length of 5um and an operating bandwidth of 40nm. This all-silicon device can be fabricated in a single lithography step and we have fabricated and characterized a preliminary device exhibiting 9dB extinction ratio. To emphasize the generality of our methodology, we also designed a NPR that can rotate the polarization state from TM to TE as well. A small device footprint is enabled by the evanescent coupling of guided modes enabled by computationally designed digital metamaterials. PMID- 29041661 TI - High-efficiency tunable circular asymmetric transmission using dielectric metasurface integrated with graphene sheet. AB - High-efficiency tunable asymmetric transmission (AT) based on simple-constructed metasurface is highly desired for next generation optical polarization devices. Here, we numerically investigate high-efficiency and frequency-tunable circular AT effect in mid-infrared region by combining simple-shape silicon array with a graphene sheet. The asymmetric parameter of the dielectric nanostrip structure reaches 0.92 at 12.68 THz and the width of tunable spectra (AT > 0.7) is 1100 nm, which represent a major advance compared with previously reported AT. The AT behavior originates from extrinsic chirality induced by oblique illumination, and the high AT efficiency results from the constructive and deconstructive interferences of selectively excited electric and magnetic resonances. In addition, the working waveband of AT is shifted by dynamically modulating graphene's Fermi energy, which offers a new degree of freedom to achieve multifunctions without refabricating structures. The proposed array system possessing the merits of high efficiency, simple inclusions and frequency tunability has significant potentials for practical applications in polarization devices such as polarization sensor, polarizer, etc. PMID- 29041662 TI - Self-pulsing in kilowatt level narrow-linewidth fiber amplifier with WNS phase modulation. AB - The self-pulsing phenomenon in kilowatt level narrow-linewidth fiber amplifiers with white noise source (WNS) phase-modulation is observed experimentally. It possesses the obvious threshold of the pump power and prevents the narrow linewidth fiber lasers from further power scaling. The experimental study shows that known explanations are not applicable here and indicates that occurrence of self-pulsing is closely related to Stimulated Brillouin Scattering (SBS) process. The theoretical discussion reveals that the spikes in the modulated spectrum are the critical factor that SBS threshold is lower than the theoretical estimation. The 1+1 dimensional SBS model analysis predicts that self-pulsing originates from forward second order Stokes pulses, which is in good qualitative agreement with the experimental data. PMID- 29041663 TI - kHz-order linewidth controllable 1550 nm single-frequency fiber laser for coherent optical communication. AB - A kHz-order linewidth controllable 1550 nm single-frequency fiber laser (SFFL) is demonstrated for the first time to our best knowledge. The control of the linewidth is realized by using a low-pass filtered white Gaussian noise (WGN) signal applied on a fiber stretcher in an optical feedback loop. Utilizing WGN signals with different signal amplitudes An and different cutoff frequencies fc, the linewidths are availably controlled in a wide range from 0.8 to 353 kHz. The obtained optical signal-to-noise ratio (OSNR) is more than 72.0 dB, and the relative intensity noise (RIN) at frequency greater than 40 MHz reaches -148.5 dB/Hz which approaches the shot noise limit (-152.9 dB/Hz). This kHz-order linewidth controllable SFFL is meaningful and valuable, for optimizing the receiver sensitivity and bit error rate (BER) performance of the coherent optical communication system based on high-order quadrature amplitude modulation (QAM). PMID- 29041664 TI - Diode-pumped passively Q-switched self-frequency-doubled Nd:CNGS laser. AB - With Cr4+:YAG as a saturable absorber, a passively Q-switched self-frequency doubled (SFD) laser based on a trigonal Nd:Ca3NbGa3Si2O14 (Nd:CNGS) silicate crystal was demonstrated for the first time. The maximum average output power at 532 nm was 16.2 mW, and the corresponding pulse repetition frequency, single pulse energy, pulse duration and peak power were 2.25 kHz, 7.2 MUJ, 13.7 ns, 0.53 kW, respectively. We also present a rate-equation model of such a passively Q switched SFD laser showing a good agreement with the experiment. Nd:CNGS is a promising pulse SFD material for miniature all-solid-state visible light sources. PMID- 29041665 TI - Multi-transverse mode operation of alkali vapor lasers: modeling and comparison with experiments. AB - In high-power diode pumped alkali lasers with stable resonators the radius of the pump beam is usually larger than that of the fundamental laser mode and thus several high order transverse modes of the resonator can participate in the lasing. A simple optical model of multi-transverse mode operation of alkali vapor lasers is reported. The model is based on calculations of the pump and laser beam intensities in the gain medium, where the laser beam intensity is a linear combination of the azimuthally-symmetric Laguerre-Gaussian modes. It was applied to Ti:Sapphire and diode pumped cesium vapor lasers. The model predicts that for low pump power only the fundamental lasing mode oscillates. However, for higher pump powers several transverse modes participate in oscillation. The number and intensities of the oscillating modes as a function of the pump beam power and radius were found. The model predicts linear dependence of the laser power on the pump power, the values of the former being in agreement with the experimental results obtained for diode pumped cesium laser [Electron. Lett.44, 582 (2008)]. The mode-matching efficiency for the multi-transverse mode lasing is ~0.8 - 0.85 which means that in this case almost complete overlap of the laser and pump beams takes place. The laser beam quality factorM2increases with increasing pump power from 1 at the threshold power to 5-6 at maximum values of the pump power resulting in lower beam quality at high powers. PMID- 29041666 TI - Pr:RbPb2Cl5: temperature dependent spectra, dynamics and three-for-one excitation. AB - The temperature dependence of the absorption, fluorescence, and fluorescence lifetimes of states relevant to short-wave-infrared and mid-infrared laser operation have been measured in Pr:RbPb2Cl5. The 3600-5500-nm fluorescence grows strongly with temperature, and at room temperature represents the large majority of the observed photon flux. Intra-ionic decay processes cannot explain this dominance, but a combination of two cross-relaxation processes provides good agreement with the data. These results indicate a three-for-one process: the excitation of nearly three ions to the 3H5 manifold of Pr3+ by each one initially excited to 3F3, with the potential for exceptionally high efficiency excitation of mid-infrared laser materials. PMID- 29041667 TI - Towards quantum communications in free-space seawater. AB - Long-distance quantum channels capable of transferring quantum states faithfully for unconditionally secure quantum communication have been so far confirmed to be feasible in both fiber and free-space air. However, it remains unclear whether seawater, which covers more than 70% of the earth, can also be utilized, leaving global quantum communication incomplete. Here we experimentally demonstrate that polarization quantum states including general qubits of single photon and entangled states can survive well after travelling through seawater. We perform experiments with seawater collected over a range of 36 kilometers in the Yellow Sea. For single photons at 405 nm in a blue-green window, we obtain an average process fidelity above 98%. For entangled photons at 810nm, albeit very high loss, we observe the violation of Bell inequality with 33 standard deviations. Our results confirm the feasibility of a seawater quantum channel, representing the first step towards underwater quantum communication. PMID- 29041668 TI - Origins of Kerr phase and orientational phase in polymer-dispersed liquid crystals. AB - Polymer-dispersed liquid crystals (PDLCs) modulate the amplitude and optical phase of light. The optical phase modulation of PDLC can be dissected into two parts: Kerr phase and orientational phase according to the electro-optical (EO) response. We investigated the origins of the Kerr and orientational phases in PDLCs and their connection with the two-step EO response. The Kerr phase is attributed to LC orientation in the center of LC droplets. The orientational phase results from orientation of LC molecules near LC-polymer interfaces. Both phases can be adjusted by varying the droplet size. The two-step EO response in small droplets (<333 nm) is related to the Kerr and orientational phases, and possibly to rotation of point defects. A modified PDLC model considering the Kerr and orientational phases is proposed. Our findings suggest the possibility of versatile photonic devices using pure optical phase modulation. PMID- 29041669 TI - Numerical investigations on photonic nanojet mediated surface enhanced Raman scattering and fluorescence techniques. AB - Finite element method simulations have been carried out on the photonic nanojet (PNJ) mediated surface enhanced Raman scattering (SERS) technique for the first time, and this technique has been found to provide (i) better Raman scattering enhancement of single molecules and (ii) a long working distance between the microscopic objective lens and sample, as compared with the conventional SERS technique. A PNJ mediated surface enhanced fluorescence (SEF) technique has been proposed to enhance the fluorescence of single molecules using the combination of localized surface plasmons inside nanostructures and the PNJ of a dielectric microsphere (MS), and this technique is numerically proved to be efficient as compared with a conventional SEF technique. Moreover, the generation of a PNJ from single lollipop shaped microstructures and its applications in the above mentioned techniques have been reported. PMID- 29041670 TI - Generalized optical angular momentum sorter and its application to high dimensional quantum cryptography. AB - The orbital angular momentum (OAM) carried by optical beams is a useful quantity for encoding information. This form of encoding has been incorporated into various works ranging from telecommunications to quantum cryptography, most of which require methods that can rapidly process the OAM content of a beam. Among current state-of-the-art schemes that can readily acquire this information are so called OAM sorters, which consist of devices that spatially separate the OAM components of a beam. Such devices have found numerous applications in optical communications, a field that is in constant demand for additional degrees of freedom, such as polarization and wavelength, into which information can also be encoded. Here, we report the implementation of a device capable of sorting a beam based on its OAM and polarization content, which could be of use in works employing both of these degrees of freedom as information channels. After characterizing our fabricated device, we demonstrate how it can be used for quantum communications via a quantum key distribution protocol. PMID- 29041671 TI - Tailoring the plasmon-induced transparency resonances in terahertz metamaterials. AB - We experimentally demonstrate that a coupled metamaterial composed of sub wavelength split-ring-resonators (SRRs) and closed-ring-resonators (CRRs) can tailor the plasmon-induced-transparency (PIT) resonances when the external electric field is parallel to the gaps of SRRs. Rotating or moving SRRs in vertical direction plays a critical role in the EIT functionality, while an excellent robust performance can be acquired via moving SRRs in the horizontal direction. Based on the results, a polarization-independent and polarization dependent planar metamaterial are designed, fabricated and measured. In contrast to the spectral property of the polarization-independent medium, the polarization dependent one is featured by isolated PIT phenomena in the frequency-domain, with respect to the horizontal and vertical polarized incident beam. Transmission responses of the PIT metamaterial are characterized with terahertz time-domain spectroscopy, showing a good agreement with the rigorous numerical simulation results. The presented work delivers a unique way to excite and modulate the PIT response, toward developing polarization-independent and polarization-dependent slow-light building blocks, ultrasensitive sensors and narrow-band filters functioning in the THz regime. PMID- 29041672 TI - Compact fiber CPA system based on a CFBG stretcher and CVBG compressor with matched dispersion profile. AB - In this work, a compact fiber chirped pulse amplification system exploiting a tandem of a chirped fiber Bragg grating stretcher and a chirped volume Bragg grating compressor with matched chromatic dispersion is presented. Chirped pulses of 230 ps duration were amplified in a Yb-doped fiber amplifier and re-compressed to 208 fs duration with good fidelity. The compressed pulse duration was fine tuned by temperature gradient along the fiber Bragg grating stretcher. PMID- 29041673 TI - Broad tunable photonic microwave generation based on period-one dynamics of optical injection vertical-cavity surface-emitting lasers. AB - Photonic microwave generation based on period-one dynamics of an optically injected VCSEL has been study experimentally. The results have shown that the frequency of the generated microwave signal can be broadly tunable through the adjustment of the injection power and the frequency detuning. Strong optical injection power and higher frequency detuning are favorable for obtaining a high frequency microwave signal. These results are similar to those found in systems based on distributed feedback lasers and quantum dot lasers. The variation of the microwave power at the fundamental frequency and the second-harmonic distortion have also been characterized. PMID- 29041674 TI - Rb/Ba side-diffused ridge waveguides in KTP. AB - We report on characterization of ridge waveguides fabricated in KTP (KTiOPO4) by use of diamond-blade dicing and Rb/Ba ion exchange. The waveguides were prepared in substrates that have their z-axis in the surface plane, perpendicular to the waveguide direction. This hinders the RbBa ions from diffusion into the depth, as they are only mobile along the z-axis, and improves the waveguide's resistance against elevated temperature. Attenuation coefficients of 0.3 dB/cm (0.4 dB/cm) for TM (TE) polarization were measured at 1060 nm wavelength. Internal conversion efficiency of up to 3.3%/(W cm2) was determined for type-II SHG of 1064 nm. PMID- 29041675 TI - Secchi disk observation with spectral-selective glasses in blue and green waters. AB - Radiative transfer modeling of Secchi disk observations has historically been based on conjugated signals of eye response and radiance, where water's attenuation in the entire visible band is included in the attenuation when deciding the Secchi disk depth in water. Aas et al. [Ocean Sci.10(2), 177 (2014)Remote Sens. Environ.169, 139 (2015)] hypothesized that it is actually the attenuation in water's transparent window that matters to the observation of a Secchi disk in water. To test this hypothesis, observations of Secchi disks in blue and green waters were conducted via naked eyes, blue-pass glasses, and green pass glasses. Measurement results indicate that for blue waters, the observed Secchi depths via naked eyes match the depths obtained with blue-pass glasses and much deeper than the depths with green-pass glasses, although the green-pass glasses match the highest response of human eyes. These observations experimentally support the hypothesis that our eye-brain system uses the contrast information in the transparent window to make a judgement decision regarding sighting a Secchi disk in water. PMID- 29041676 TI - Scattering of Poincare beams: polarization speckles. AB - Polarization speckle is a fine granular light pattern having spatially varying random polarization profile. We generate these speckle patterns by using the scattering of Poincare beams, a special class of vector vortex beams, through a ground glass plate. Here, the Poincare beams are generated using a polarization sensitive spatial light modulator displaying an on-axis hologram corresponding to an optical vortex phase profile. The different inhomogeneities of the rough surface experience different polarizations, which control the ability for scattered waves to interfere at the detection plane and causes a spatially varying polarization profile. We experimentally determined the spatial variation of local degree of polarization and orientation of the polarization ellipse for these speckle patterns from the Stokes analysis. We also determined the size of scalar speckles using the auto-correlation function of Stokes parameter S0 and the size of polarization speckles using the sum of auto-correlation functions of remaining three Stokes parameters. We found that the change in scalar speckle size with the index of the vector beam is very small and of the order of 1 pixel size of the camera but the size of polarization speckles decreases with the increase in index of the vector beam. PMID- 29041677 TI - Ultrashort and efficient adiabatic waveguide taper based on thin flat focusing lenses. AB - A new structure is reported, which realizes the flat focusing by introducing the silicon subwavelength slits into the waveguide. The subwavelength silicon-air slits, with variable widths to match the phase compensation, makes possible to focus a plane wave. The flat lens proposed here demonstrates relatively high power gain at the focal point or two focal points. By using such a design, we demonstrate a grating coupler with an ultrashort taper of 22.5-MUm to connect a 10-MUm-wide input waveguide and a 0.5-MUm-wide output waveguide, achieving a transmission up to nearly 95.4% numerically in the communication band. The length of which is one-twentieth of that for the traditional taper. To our best knowledge, this work is the first demonstration of an ultrashort taper based on flat lens, which significantly improves the integration of the photonics integrated circuits, and indicates an effective solution for potential applications in compactly integrated micro/nano optical devices. PMID- 29041678 TI - Fourier transform imaging spectropolarimeter using ferroelectric liquid crystals and Wollaston interferometer. AB - A time-division Fourier transform imaging spectropolarimeter (FTISP) for acquiring spatial, spectral, and polarized information is presented. The FTISP employs two ferroelectric liquid crystals (FLCs) and a Wollaston interferometer. The fast axes of the FLCs are controlled to switch quickly without mechanical movement, enabling the polarization state analyzer (PSA) to modulate the full set of Stokes parameters rapidly. The interferometer combines a Wollaston prism with a retroreflector, enabling high interference modulation and facilitating optical alignment. The optimal design for the FLC-PSA and Wollaston interferometer, and the Fourier transform recovery for the polarized interferogram, are presented in detail. To verify the proposed FTISP, laboratory and outdoor experiments were conducted, and the experimental results demonstrate that the proposed FTISP offers much promise for spectropolarimetric measurement with the advantages of fast speed, high spectral resolution, and high signal-to-noise ratio. PMID- 29041679 TI - Discrete solitons in optical fiber systems with large pre-dispersion. AB - With the aid of a discrete nonlinear Schrodinger equation (NLSE), the nonlinear interaction among the periodically placed ultrashort pulses is analyzed. If the amplitudes of these pulses are chosen to be secant-hyperbolic, it is found that they propagate without exchanging energy and hence the envelope of the peak of the short pulses is termed the discrete soliton in analogy with its counterpart in the spatial domain. In addition, we develop the concept of discrete chirp transform (DChT) and its inverse, and show that the weights of the pulses can be extracted from the field envelope using the discrete chirp transform (DChT). The computational cost of evaluating the output of a linear dispersive fiber using DChT approach is nearly half of the conventional frequency domain approach based on fast Fourier transform (FFT). We found that an isolated pump sinc pulse is not stable and it generates temporally separated sinc pulses if the dispersion of the transmission fiber is anomalous. By choosing a proper time separation between signal pulse and pump pulse, it is possible to amplify the signal pulse. The nonlinear interaction between signal pulse and pump pulse generates an idler pulse that is a phase-conjugated copy of the signal pulse. Hence, this result could have potential applications for time domain optical amplification and phase conjugation. PMID- 29041680 TI - Wavelength selective switch array employing silica-based waveguide frontend with integrated polarization diversity optics. AB - We propose a waveguide frontend with integrated polarization diversity optics for a wavelength selective switch (WSS) array with a liquid crystal on silicon switching engine to simplify the free space optics configuration and the alignment process in optical modules. The polarization diversity function is realized by the integration of a waveguide-type polarization beam splitter and a polarization rotating half-wave plate in a beam launcher using silica-based planar lightwave circuit technology. We confirmed experimentally the feasibility of using our proposed waveguide frontend in a two-in-one 1 * 20 WSS. The experimental results show that the fabricated waveguide frontend provides a polarization diversity function without any degradation in optical performance. PMID- 29041681 TI - Experimental and theoretical study of the in- fiber twist sensor based on quasi fan Solc structure filter. AB - In this paper, a novel quasi-fan Solc structure filter based on elliptical-core spun fiber for twist sensing has been experimentally investigated and theoretically analyzed. The discrete model of spun fiber has been built to analyze the transmission characteristics of proposed sensor. Both experimental and simulated results indicate that the extinction ratio of the comb spectrum based on quasi-fan Solc birefringent fiber filter varies with twist angle and agrees well with each other. Based on the intensity modulation, the proposed twist sensor exhibits a high sensitivity of 0.02219 dB/( degrees /m). Moreover, thanks to the invariability of the fiber birefringence and the state of polarization of the input light, the proposed twist sensor has a very low temperature and strain sensitivity, which can avoid the cross-sensitivity problem existing in most twist sensors. PMID- 29041682 TI - Focus issue introduction: recent advances in astrophotonics. AB - The first Optics Express Focus Issue on Astrophotonics was published in 2009. Since that time the field has experienced substantial growth and pathfinder astrophotonic systems are routinely being tested on large telescopes around the globe. This second Focus Issue on Astrophotonics is intended to capture some of these significant developments and convey a sense of future directions for the field. PMID- 29041683 TI - Measurement of direct strain optic coefficient of YSZ thermal barrier coatings at GHz frequencies. AB - We report the first observation of stress induced birefringence in air plasma sprayed (APS) thermal barrier coatings (TBCs) using a reflection based polariscope and GHz illumination. Strain optic coefficients of (-0.0133 +/- 0.0102) * 10-9 and (-0.0190 +/- 0.0043) * 10-9 were measured for yttria stabilized zirconia (YSZ) APS coatings of the same thickness deposited on substrates of 3 mm and 1 mm mild steel. The reflection measurement approach was validated by additional measurements of the stress optic coefficient of bulk yttria-partially stabilized zirconia (YTZP) ceramic that were in agreement with previously reported transmission measurements. The ultimate application of this technique is the prediction of remaining life in TBCs. PMID- 29041684 TI - Thresholdless quantum dot nanolaser. AB - Thresholdless lasing is an outstanding challenge in laser science and is achievable only in devices having near unity quantum efficiency even when not lasing. Such lasers are expected to exhibit featureless linear light output curves. However, such thresholdless behavior hinders identification of the laser transition, triggering a long-lasting argument on how to identify the lasing. Here, we demonstrate thresholdless lasing in a semiconductor quantum dot nanolaser with a photonic crystal nanocavity. We employ cavity resonant excitation for enabling the thresholdless operation via focused carrier injection into high cavity field regions. Under conventional (above bandgap) excitation, the same nanolaser exhibits a typical thresholded lasing transition, thereby facilitating a systematic comparison between the thresholdless and thresholded laser transitions in the single device. Our approach enables a clear verification of the thresholdless lasing and reveals core elements for its realization using quantum dots, paving the way to the development of ultimately energy-efficient nanolasers. PMID- 29041685 TI - Performance analysis of an OAM multiplexing-based MIMO FSO system over atmospheric turbulence using space-time coding with channel estimation. AB - The average bit error rate (ABER) performance of an orbital angular momentum (OAM) multiplexing-based free-space optical (FSO) system with multiple-input multiple-output (MIMO) architecture has been investigated over atmospheric turbulence considering channel estimation and space-time coding. The impact of different types of space-time coding, modulation orders, turbulence strengths, receive antenna numbers on the transmission performance of this OAM-FSO system is also taken into account. On the basis of the proposed system model, the analytical expressions of the received signals carried by the k-th OAM mode of the n-th receive antenna for the vertical bell labs layered space-time (V-Blast) and space-time block codes (STBC) are derived, respectively. With the help of channel estimator carrying out with least square (LS) algorithm, the zero-forcing criterion with ordered successive interference cancellation criterion (ZF-OSIC) equalizer of V-Blast scheme and Alamouti decoder of STBC scheme are adopted to mitigate the performance degradation induced by the atmospheric turbulence. The results show that the ABERs obtained by channel estimation have excellent agreement with those of turbulence phase screen simulations. The ABERs of this OAM multiplexing-based MIMO system deteriorate with the increase of turbulence strengths. And both V-Blast and STBC schemes can significantly improve the system performance by mitigating the distortions of atmospheric turbulence as well as additive white Gaussian noise (AWGN). In addition, the ABER performances of both space-time coding schemes can be further enhanced by increasing the number of receive antennas for the diversity gain and STBC outperforms V-Blast in this system for data recovery. This work is beneficial to the OAM FSO system design. PMID- 29041686 TI - Development of precision elliptic neutron-focusing supermirror. AB - This paper details methods for the precision design and fabrication of neutron focusing supermirrors, based on electroless nickel plating. We fabricated an elliptic mirror for neutron reflectometry, which is our second mirror improved from the first. The mirror is a 550-millimeter-long segmented mirror assembled using kinematic couplings, with each segment figured by diamond cutting, polished using colloidal silica, and supermirror coated through ion-beam sputtering. The mirror was evaluated with neutron beams, and the reflectivity was found to be 68 90% at a critical angle. The focusing width was 0.17 mm at the full width at half maximum. PMID- 29041687 TI - Passively mode-locked 1.34 MUm bulk laser based on few-layer black phosphorus saturable absorber. AB - By using few-layer black phosphorus (BP) as saturable absorber, an efficient mode locked Nd:GdVO4 bulk laser operating at 1.34 MUm was realized. An average output power of 350 mW was achieved with a slope efficiency of 15%. The corresponding mode-locking pulse repetition rate, pulse duration and pulse energy were 58.14 MHz, 9.24 ps and 3.0 nJ, respectively. To the best of our knowledge, the pulse width is the shortest among the mode-locked 1.34 MUm neodymium lasers ever obtained with other two-dimensional materials saturable absorber. The results clearly indicate the few-layered BP is a kind of promising saturable absorber for ultrafast 1.34 MUm lasers. PMID- 29041688 TI - Simultaneous dual-color light sheet fluorescence imaging flow cytometry for high throughput marine phytoplankton analysis: retraction. AB - The referenced article [Opt. Express25, 13602 (2017)]10.1364/OE.25.013602 has been retracted. PMID- 29041689 TI - Fano enhancement in hybrid plasmonic nanoresonator. AB - Combining the advantages of photonics (low loss) and plasmonics (high field confinement), while mitigating their respective drawbacks, can greatly enhance the light-matter interaction efficiency. Here we make use of a time-dependent coupled mode theory in order to theoretically model the excitation of a plasmonic nanoantenna via a photonic resonator. We show that including the light source nanoantenna direct coupling substantially enhances the overall coupling efficiency, maintaining the same input power. PMID- 29041690 TI - Critical side channel effects in random bit generation with multiple semiconductor lasers in a polarization-based quantum key distribution system. AB - Most polarization-based BB84 quantum key distribution (QKD) systems utilize multiple lasers to generate one of four polarization quantum states randomly. However, random bit generation with multiple lasers can potentially open critical side channels that significantly endangers the security of QKD systems. In this paper, we show unnoticed side channels of temporal disparity and intensity fluctuation, which possibly exist in the operation of multiple semiconductor laser diodes. Experimental results show that the side channels can enormously degrade security performance of QKD systems. An important system issue for the improvement of quantum bit error rate (QBER) related with laser driving condition is further addressed with experimental results. PMID- 29041691 TI - Distributed optical fiber vibration sensor based on Sagnac interference in conjunction with OTDR. AB - A real-time distributed optical fiber vibration sensing prototype based on the Sagnac interference in conjunction with the optical time domain reflectometry (OTDR) was developed. The sensing mechanism for single- and multi-points vibrations along the sensing fiber was analyzed theoretically and demonstrated experimentally. The experimental results show excellent agreement with the theoretical models. It is verified that single-point vibration induces a significantly abrupt and monotonous power change in the corresponding position of OTDR trace. As to multi-points vibrations, the detection of the following vibration is influenced by all previous ones. However, if the distance between the adjacent two vibrations is larger than half of the input optical pulse width, abrupt power changes induced by them are separate and still monotonous. A time shifting differential module was developed and carried out to convert vibration induced power changes to pulses. Consequently, vibrations can be located accurately by measuring peak or valley positions of the vibration-induced pulses. It is demonstrated that when the width and peak power of input optical pulse are set to 1 MUs and 35 mW, respectively, the position error is less than +/- 0.5 m in a sensing range of more than 16 km, with the spatial resolution of ~110 m. PMID- 29041692 TI - Propagation of multi-cosine-Laguerre-Gaussian correlated Schell-model beams in free space and atmospheric turbulence. AB - We introduce a class of random stationary, scalar source named as multi-cosine Laguerre-Gaussian-correlated Schell-model (McLGCSM) source whose spectral degree of coherence (SDOC) is a combination of the Laguerre-Gaussian correlated Schell model (LGCSM) and multi-cosine-Gaussian correlated Schell-model (McGCSM) sources. The analytical expressions for the spectral density function and the propagation factor of a McLGCSM beam propagating in turbulent atmosphere are derived. The statistical properties, such as the spectral intensity and the propagation factor, of a McLGCSM beam are illustrated numerically. It is shown that a McLGCSM beam exhibits a robust ring-shaped beam array with adjustable number and positions in the far field by directly modulating the spatial structure of its SDOC in the source plane. Moreover, we provide a detailed insight into the theoretical origin and characteristics of such a ring-shaped beam array. It is demonstrated that these peculiar shaping properties are the concentrated manifestation of the individual merits respectively associated with the Laguerre- and multi-cosine-related factors of the whole SDOC. Our results provide a novel scheme to generate robust and controllable ring-shaped beam arrays over large distances, and will widen the potentials for manipulation of multiple particles, free-space optical communications and imaging in the atmosphere. PMID- 29041693 TI - Development of a fiber-optic gamma endoscope to measure both optical and gamma images in a confined space. AB - In nuclear medicine, obtaining information on the exact location, size, and dose of radiopharmaceuticals distributed on lesions is critically important. Therefore, we have fabricated a novel fiber-optic gamma endoscope (FOGE) to measure the shape and size of the radioisotope as well as the gamma-ray distribution simultaneously. To evaluate the performance of the novel FOGE, we obtained optical images and gamma images by using a USAF 1951 target and radioisotope sources, respectively. The experimental results demonstrated that the FOGE could be utilized to obtain both the location and the distribution of the radioactive isotope that emitted gamma-rays. Based on the results of this study, use of a flexible and thin FOGE would be valuable in nuclear medicine and nuclear safety technologies given the advantages of accurate dose-monitoring. Especially, improvements could be achieved in surgery technologies because the FOGE could be used in minimally invasive radioguided surgery owing to its thin form and flexibility. PMID- 29041694 TI - Non-diffractive Bessel-Gauss beams for the detection of rotating object free of obstructions. AB - Bessel-Gauss beams carrying orbital angular momentum are widely known for their non-diffractive or self-reconstructing performance, and have been applied in lots of domains. Here we demonstrate that, by illuminating a rotating object with high order Bessel-Gauss beams, a frequency shift proportional to the rotating speed and the topological charge is observed. Moreover, the frequency shift is still present once an obstacle exists in the path, in spite of the decreasing of received signals. Our work indicates the feasibility of detecting rotating objects free of obstructions, and has potential as obstruction-immune rotation sensors in engine monitoring, aerological sounding, and so on. PMID- 29041695 TI - Resolution enhancement in in-line holography by numerical compensation of vibrations. AB - Mechanical vibrations of components of the optical system is one of the sources of blurring of interference pattern in coherent imaging systems. The problem is especially important in holography where the resolution of the reconstructed objects depends on the effective size of the hologram, which is on the extent of the interference pattern, and on the contrast of the interference fringes. We discuss the mathematical relation between the vibrations, the hologram contrast and the reconstructed object. We show how vibrations can be post-filtered out from the hologram or from the reconstructed object assuming a Gaussian distribution of the vibrations. We also provide a numerical example of compensation for directional motion blur. We demonstrate our approach for light optical and electron holograms, acquired with both, plane- as well as spherical waves. As a result of such hologram deblurring, the resolution of the reconstructed objects is enhanced by almost a factor of 2. We believe that our approach opens up a new venue of post-experimental resolution enhancement in in line holography by adapting the rich database/catalogue of motion deblurring algorithms developed for photography and image restoration applications. PMID- 29041696 TI - Investigation of rectangular shaped wave packet dynamics in a high-repetition rate ultrafast fiber laser. AB - We identify a new regime where laser pulses represent the dynamics of rectangular shaped wave packets (RSWPs) in a passively mode-locked Tm3+-doped fiber laser. In this regime the laser consists of a train of mode-locked pulses underneath a rectangular-shaped envelope. The density of pulses within a RSWP can be as high as 2.8 GHz, which is consistent with cavity fundamental repetition rate. The effects of small-signal gain value, pulse repetition rate, and net dispersion on the RSWP performance are analyzed. These results imply that this new regime particularly favors high-repetition-rate ultrafast lasers. We further reproduce the phenomenon from using numerical simulations and understand such behavior by referring to the nonlinear dynamics. PMID- 29041697 TI - Focus-tunable double convex lens based on non-ionic electroactive gel. AB - We propose a focus-tunable double-convex (DCX) lens based on a non-ionic PVC (nPVC) gel to be used at close conjugates. The proposed lens is composed of an nPVC gel and two plates with electrodes. Each plate has a hole whose boundary and inner part are pasted with an electrode (anode) and has another ring shaped electrode (cathode) whose center point is the same as the hole's center. The gel is sandwiched between an upper plate and a lower plate, and it is bulged inward between the holes of two plates by applied pressure from the plates (double convex lens shape). The lens's focal length changed from 3 mm to 24.5 mm with applied voltages from 0 V to 400 V. We also observed that the proposed lens's field-of-view decreased from 121.9 degrees to 41.9 degrees according to the applied voltages. The proposed lens brings additional benefit for users with higher transmittance (over 94%). PMID- 29041698 TI - Real-time complex amplitude reconstruction method for beam quality M2 factor measurement. AB - We present a real-time complex amplitude reconstruction method for determining the beam propagation ratio M2 of laser beams based on the transport of intensity equation (TIE). In this work, a synchronous acquisition system consisting of two identical CCDs is established. Once two beam intensity images at different cross section positions along the optical axis are captured simultaneously by the system, the complex amplitude of the laser beam can be rapidly reconstructed using TIE algorithm. Then the beam intensity distribution at any section position along its propagation direction can be obtained by using angular spectrum (AS) theory. The beam quality M2 factor is therefore calculated utilizing the second order moments and hyperbola fitting methods, which conform to the ISO standard. The suitability of this method is verified by the numerical analysis and experiments with the He-Ne and high-power fiber laser sources, respectively. The experimental technique is simple and fast, which allows to investigate laser beams under conditions inaccessible to other methods. PMID- 29041699 TI - Photon heterodyning. AB - Single-photon interference experiments are attempted in the time domain using true single-photon streams. Self-heterodyning beats are clearly observed by letting the field associated with a single photon interfere with itself on a field-quadratic detector, which is a time analogue of Young's two-slit interference experiment. The temporal first-order coherence of single-photon fields, i.e., transient interference fringes, develops as cumulative detection events are mapped point-by-point onto a virtual capture frame by properly correlating the time-series data. The ability to single out photon counts at a designated timing paves the way for digital heterodyning with faint light for such use as phase measurement and quantum information processing. PMID- 29041700 TI - Synthetic aperture focusing technique for photoacoustic endoscopy. AB - Photoacoustic endoscopy (PAE) is a promising tool for the detection of atherosclerotic plaque. In this work, we propose a novel design of a side-viewing PAE probe based on a synthetic aperture focusing technique (SAFT) to enable high transverse resolution over large depth of focus (DOF) along the radial direction. A point-like ultrasonic detector is used to ensure a wide detection angle and thus a large synthetic aperture for SAFT. We first perform numerical simulation to optimize the PAE probe design, which involves the placement of the point-like detector and the diameter of a reflection rod mirror. Then, experiments are conducted based on the optimized probe design. High transverse resolution of 115 190 um over large DOF of 3.5 mm along the radial direction is experimentally obtained. The SAFT-based PAE holds promise for endoscopic imaging with a high transverse resolution for both the surface and deep regions of tissue. PMID- 29041701 TI - Compact single-shot four-wavelength quantitative phase microscopy with polarization- and frequency-division demultiplexing. AB - We present a novel single-shot four-wavelength quantitative phase microscopy (FW QPM). Four lasers operating at different wavelengths are multiplexed with a pair of dichroic mirrors and a polarization beam splitter in a three-mirror quasi common-path interferometer. After a single-shot interference pattern is obtained with a monochrome camera, four holograms of different wavelengths were demultiplexed from it in the frequency domain with polarization- and frequency division multiplexing. Polarization-division demultiplexing scheme uses polarization dependent visibility changes in an interference pattern, and it plays a critical role in making only two interference patterns exist within a single quadrant in the frequency domain. We have used a single-mode optical fiber as a phase object sample and demonstrated that a measured single-shot interference pattern can be successfully demultiplexed into four different interferograms of different wavelengths with our proposed scheme. PMID- 29041702 TI - Towards large dynamic range and ultrahigh measurement resolution in distributed fiber sensing based on multicore fiber. AB - Featuring a dependence of Brillouin frequency shift (BFS) on temperature and strain changes over a wide range, Brillouin distributed optical fiber sensors are however essentially subjected to the relatively poor temperature/strain measurement resolution. On the other hand, phase-sensitive optical time-domain reflectometry (Phi-OTDR) offers ultrahigh temperature/strain measurement resolution, but the available frequency scanning range is normally narrow thereby severely restricts its measurement dynamic range. In order to achieve large dynamic range and high measurement resolution simultaneously, we propose to employ both the Brillouin optical time domain analysis (BOTDA) and Phi-OTDR through space-division multiplexed (SDM) configuration based on the multicore fiber (MCF), in which the two sensors are spatially separately implemented in the central core and a side core, respectively. As a proof of concept, the temperature sensing has been performed for validation with 2.5 m spatial resolution over 1.565 km MCF. Large temperature range (10 degrees C) has been measured by BOTDA and the 0.1 degrees C small temperature variation is successfully identified by Phi-OTDR with ~0.001 degrees C resolution. Moreover, the temperature changing process has been recorded by continuously performing the measurement of Phi-OTDR with 80 s frequency scanning period, showing about 0.02 degrees C temperature spacing at the monitored profile. The proposed system enables the capability to see finer and/or farther upon requirement in distributed optical fiber sensing. PMID- 29041703 TI - Tailored intensity landscapes by tight focusing of singular vector beams. AB - Vector beams are of major importance to tailor tightly focused fields by creating an additional z-polarization component. Till now, mainly focusing properties of fundamental vector beams have been investigated, whereas the knowledge of focused higher-order singular vector fields is still missing. We fill this gap by numerical analysis of these fields, applying their attractive characteristics as including a spatially adjustable amount of radial and azimuthal components. We demonstrate the realization of three-dimensional polarization structures whose total intensity resembles dark stars and bright flowers. Further, we tailor these focal intensity landscapes by modulating the order of incident vector fields. This in turn allows shaping the focus of a light field for specific applications as e.g. advanced microscopy. PMID- 29041704 TI - Optical and electrical trade-offs of rib-to-contact distance in depletion-type ring modulators. AB - We present a study on electrical and optical trade-offs of the doping map in a ring modulator. Here, we investigate the effects of the high-doped region distance to edge of the waveguide sidewall. Four groups of ring modulators with different rib-to-contact distances are fabricated and measured where the key parameters such as extinction ratio, insertion loss, transmission penalty, and bandwidth are compared quantitatively. Small-signal responses for the selected ring modulators are simulated where results are in agreement with measurement results. We show that, at 4dB extinction ratio, decreasing the high-doped region distance to rib from 800nm to 350nm will increase the bandwidth by 3.8 *. However, we observed 8.4dB increase the insertion loss. We also show that the high-doped region location affects the trade-off between bandwidth and frequency response magnitude at low frequencies. At 350nm, this trade off is 2.5 * and 3.8* more efficient compared to 550nm and 800nm, respectively. PMID- 29041705 TI - Depth-resolved local reflectance spectra measurements in full-field optical coherence tomography. AB - Full-field optical coherence tomography (FF-OCT) is a widely used technique for applications such as biological imaging, optical metrology, and materials characterization, providing structural and spectral information. By spectral analysis of the backscattered light, the technique of spectroscopic-OCT enables the differentiation of structures having different spectral properties, but not the determination of their reflectance spectrum. For surface measurements, this can be achieved by applying a Fourier transform to the interferometric signals and using an accurate calibration of the optical system. An extension of this method is reported for local spectroscopic characterization of transparent samples and in particular for the determination of depth-resolved reflectance spectra of buried interfaces. The correct functioning of the method is demonstrated by comparing the results with those obtained using a program based on electromagnetic matrix methods for stratified media. Experimental measurements of spatial resolutions are provided to demonstrate the smallest structures that can be characterized. PMID- 29041706 TI - Ultrafast optical pulse convertor caused by oscillations of the energy level structure in the conjugated polymer poly(p-phenylenevinylene). AB - For a conjugated polymer irradiated by two optical pulses, the whole process of excitation, involving lattice oscillations, oscillations of the energy level structure, and evolution of the electron cloud, is investigated. Localization of the electron cloud appears in the first 100 fs of irradiation, which in turn induces vibrations of lattice of the polymer chain as well as oscillations of the band gap. These oscillations filter the absorption of the external optical field inversely and convert the original optical field to an ultrafast light field whose intensity varies with a certain period. Based on the mechanism, oscillations of the energy level structure, induced by the external excitation, can be designed as an ultrafast response optical convertor that is able to change the external optical pulse into a new effective light field with a certain oscillation period. This helps provide new insight into designing nanostructures for polymeric optoelectronics. PMID- 29041707 TI - Translational, rotational, vibrational and electron temperatures of a gliding arc discharge. AB - Translational, rotational, vibrational and electron temperatures of a gliding arc discharge in atmospheric pressure air were experimentally investigated using in situ, non-intrusive optical diagnostic techniques. The gliding arc discharge was driven by a 35 kHz alternating current (AC) power source and operated in a glow type regime. The two-dimensional distribution of the translational temperature (Tt) of the gliding arc discharge was determined using planar laser-induced Rayleigh scattering. The rotational and vibrational temperatures were obtained by simulating the experimental spectra. The OH A-X (0, 0) band was used to simulate the rotational temperature (Tr) of the gliding arc discharge whereas the NO A-X (1, 0) and (0, 1) bands were used to determine its vibrational temperature (Tv). The instantaneous reduced electric field strength E/N was obtained by simultaneously measuring the instantaneous length of the plasma column, the discharge voltage and the translational temperature, from which the electron temperature (Te) of the gliding arc discharge was estimated. The uncertainties of the translational, rotational, vibrational and electron temperatures were analyzed. The relations of these four different temperatures (Te>Tv>Tr >Tt) suggest a high-degree non-equilibrium state of the gliding arc discharge. PMID- 29041708 TI - High-sensitivity photonic crystal fiber long-period grating methane sensor with cryptophane-A-6Me absorbed on a PAA-CNTs/PAH nanofilm. AB - A high-sensitivity photonic crystal fiber long-period grating (PCF-LPG) methane sensor with cryptophane-A-6Me absorbed on a poly(acrylic acid)-carbon nanotubes/ polypropylene amine hydrochloride (PAA-CNTs/PAH) nanofilm was investigated. The sensing film was coated onto the internal surface of a photonic crystal fiber cladding air holes by an electrostatic self-assembly technique. Based on a finite element method and the coupled local-mode theory, the effects of the sensing film's refractive index (RI) and thickness on the resonant wavelength were theoretically and numerically analyzed. When the sensing film RI decreases from 1.55 to 1.53, and the thickness increases from 100 nm to 200 nm, the resonant wavelength has a blue shift. A higher RI sensitivity with 1.075 * 103 nm RIU-1 is observed for the film thickness of 200 nm. The PCF-LPG methane sensor was fabricated by a pressurized injection method. The sensing experimental result shows that the resonant wavelength of the transmission spectra has a blue shift when the methane concentration increases from 0.0% to 3.5% by volume. The sensor has a good sensitivity of 1.078 nm%-1 and a low detection limit of 0.18% for a film thickness of 210 nm. PMID- 29041709 TI - Hybrid modes in plasmonic cavity array for enhanced hot-electron photodetection. AB - The plasmonic characteristics of a periodic array of cavities in a silicon substrate are investigated for hot-electron photodetection. Resonances of cavity surface plasmons bound to air cavities and silicon cavities, and resonance of Bragg-surface plasmon polaritons are illustrated by the map of metal absorption. Hybrid modes formed with combination of these modes can strongly enhance absorption in metal and be exploited to optimize hot-electron photodetectors for single-band and dual-band detection at optical communication wavelengths. PMID- 29041710 TI - Beam shaping with tip-tilt varifocal mirror for indoor optical wireless communication. AB - MEMS mirrors are currently used in many applications to steer beams of light. An area of continued research is developing mirrors with varifocal capability that allows the beam to be shaped and focused. In this work, we study the varifocal capability of a 380 MUm diameter, thermally actuated MEMS mirror with a +/- 40 degrees tip-tilt angle and a radius of curvature between -0.48 mm to 20.5 mm. Light is coupled to the mirror via a single mode optical fiber, similar to an indoor optical wireless communication architecture. The performance of the mirror is characterized with respect to (1) the profile of the reflected beam as the mirror deforms and (2) the mirror's impact when integrated into an optical communication system. We found that the mirror can focus light to a beam with a 0.18 degrees half-angle divergence. Additionally, the ability to change the shape of fiberized light from a wide to narrow beam provides an unmatched level of dynamic control and significantly improves the bit error rate in an optical communication system. PMID- 29041711 TI - High-order modulation on a single discrete eigenvalue for optical communications based on nonlinear Fourier transform. AB - In this paper, we experimentally investigate high-order modulation over a single discrete eigenvalue under the nonlinear Fourier transform (NFT) framework and exploit all degrees of freedom for encoding information. For a fixed eigenvalue, we compare different 4 bit/symbol modulation formats on the spectral amplitude and show that a 2-ring 16-APSK constellation achieves optimal performance. We then study joint spectral phase, spectral magnitude and eigenvalue modulation and found that while modulation on the real part of the eigenvalue induces pulse timing drift and leads to neighboring pulse interactions and nonlinear inter symbol interference (ISI), it is more bandwidth efficient than modulation on the imaginary part of the eigenvalue in practical settings. We propose a spectral amplitude scaling method to mitigate such nonlinear ISI and demonstrate a record 4 GBaud 16-APSK on the spectral amplitude plus 2-bit eigenvalue modulation (total 6 bit/symbol at 24 Gb/s) transmission over 1000 km. PMID- 29041712 TI - Use of Debye's series to determine the optimal edge-effect terms for computing the extinction efficiencies of spheroids. AB - The extinction efficiencies of atmospheric particles are essential to determining radiation attenuation and thus are fundamentally related to atmospheric radiative transfer. The extinction efficiencies can also be used to retrieve particle sizes or refractive indices through particle characterization techniques. This study first uses the Debye series to improve the accuracy of high-frequency extinction formulae for spheroids in the context of Complex angular momentum theory by determining an optimal number of edge-effect terms. We show that the optimal edge effect terms can be accurately obtained by comparing the results from the approximate formula with their counterparts computed from the invariant imbedding Debye series and T-matrix methods. An invariant imbedding T-matrix method is employed for particles with strong absorption, in which case the extinction efficiency is equivalent to two plus the edge-effect efficiency. For weakly absorptive or non-absorptive particles, the T-matrix results contain the interference between the diffraction and higher-order transmitted rays. Therefore, the Debye series was used to compute the edge-effect efficiency by separating the interference from the transmission on the extinction efficiency. We found that the optimal number strongly depends on the refractive index and is relatively insensitive to the particle geometry and size parameter. By building a table of optimal numbers of edge-effect terms, we developed an efficient and accurate extinction simulator that has been fully tested for randomly oriented spheroids with various aspect ratios and a wide range of refractive indices. PMID- 29041713 TI - Surface plasmon resonance biosensor based on gold-coated side-polished hexagonal structure photonic crystal fiber. AB - The refractive index sensing characteristics of the side-polished photonic crystal fiber (PCF) surface plasmon resonance (SPR) sensor are detailed investigated in this paper. We used the finite element method (FEM) to study the influences of the side-polished depth, air hole size, lattice constant, and the refractive index (RI) of the PCF material on sensing performance. The simulation results show that the side-polished depth, air hole size, lattice pitch have significant influence on the coupling strength between core mode and surface plasmon polaritons (SPPs), but have little influence on sensitivity; the coupling strength and sensitivity will significant increase with the decrease of RI of the PCF material. The sensitivity of the D-shaped PCF sensor is obtained to be as high as 21700 nm/RIU in the refractive index environment of 1.33-1.34, when the RI of the PCF material is controlled at 1.36. It revealed a new method of making ultra-high sensitivity SPR fiber sensor. Then we experimental demonstrated a SPR refractive sensor based on the side-polished single mode PCF and investigated the sensing performance. The experimental results of the plasmon resonance wavelength sensitivity agree well with the theoretical results. The presented gold-coated D shaped PCF SPR sensor could be used as a simple, cost-effective, high sensitivity device in bio-chemical detection. PMID- 29041714 TI - Real-time in situ study of femtosecond-laser-induced periodic structures on metals by linear and nonlinear optics. AB - Femtosecond-laser surface structuring on metals is investigated in real time by both fundamental and second harmonic generation (SHG) signals. The onset of surface modification and its progress can be monitored by both the fundamental and SHG probes. However, the dynamics of femtosecond-laser-induced periodic surface structures (FLIPSSs) formation can only be revealed by SHG but not fundamental because of the higher sensitivity of SHG to structural geometry on metal. Our technique provides a simple and effective way to monitor the surface modification and FLIPSS formation thresholds and allows us to obtain the optimal FLIPSS for SHG enhancement. PMID- 29041715 TI - Galilean monocentric multiscale optical systems. AB - The first generation of monocentric multiscale gigapixel cameras used Keplerian designs to enable full field coverage. This paper considers alternative designs that remove the requirement that adjacent subimages overlap. Removing this constraint enables Galilean designs that reduce system volume and improve relative illumination and image quality. The entrance aperture can also be moved to more closely approximate telecentricity and gaps in the field of view can be filled using multiple co-boresighted MMS cameras. Even with multiple cameras, Galilean systems can still reduce the total volume by 10 times relative to previous Keplerian designs. PMID- 29041716 TI - Efficient method to measure the spectral distortions using periodically distributed slit in hyperspectral imager. AB - The imaging spectrometer generally shows geometrical asymmetric distortions known as the keystone and smile that are different from the regular imaging optical system. The conventional method of measuring such distortions requires a precision movement control stage and specialized optical setup. Moreover, it is even harder to measure other characteristics such as the wave front error (WFE) simultaneously and to repeat the measurements since an accumulated vast number of statistical data is required to calculate the keystone and smile. To overcome these disadvantages, a new and simple method is proposed. The newly proposed method takes images separated in fields and wavelengths utilizing a simple tool called the field identifier (FI). Then, the keystone and the smile are calculated fast and repeatedly from a single measurement image while measuring the WFE with the Shack-Hartmann sensor with the minimum change of the measurement setup. With this method, hyperspectral imager is aligned and its geometrical distortions are measured. PMID- 29041717 TI - Simple autocorrelation method for thoroughly characterizing single-photon detectors. AB - We introduce and demonstrate a simple and highly sensitive method for characterizing single-photon detectors. This method is based on analyzing multi order correlations among time-tagged detection events from a device under calibrated continuous-wave illumination. First- and second-order properties such as detection efficiency, dark count rate, afterpulse probability, dead time, and reset behavior are measured with high accuracy from a single data set, as well as higher-order properties such as higher-order afterpulse effects. While the technique is applicable to any type of click/no-click detector, we apply it to two different single-photon avalanche diodes, and we find that it reveals a heretofore unreported afterpulse effect due to detection events that occur during the device reset. PMID- 29041718 TI - Tracking capacitance of liquid crystal devices to improve polarization rotation accuracy. AB - We report a capacitance tracking method for achieving arbitrary polarization rotation from nematic liquid crystals. By locking to the unique capacitance associated with the molecular orientation, any polarization rotation can be achieved with improved accuracy over a wide temperature range. A modified relaxation oscillator circuit that can simultaneously determine the capacitance and drive the rotator is presented. PMID- 29041719 TI - Asymmetric integral imaging system for a see-through three-dimensional display with background imaging function. AB - A see-through three-dimensional display with variable background imaging function is proposed. The proposed display system is based on integral imaging and consists of three lens arrays and a transparent flat-panel display. An asymmetric alignment of the three lens arrays enables variable background imaging. The background scene situated at any distance from the display system can be imaged at an intended distance from the display system. The possible imaging regions are shown. The proposed technique was experimentally verified using two optical systems that consisted of lens arrays with large and small lens pitches. PMID- 29041720 TI - Robust and efficient multi-frequency temporal phase unwrapping: optimal fringe frequency and pattern sequence selection. AB - Temporal phase unwrapping (TPU) is an essential algorithm in fringe projection profilometry (FPP), especially when measuring complex objects with discontinuities and isolated surfaces. Among others, the multi-frequency TPU has been proven to be the most reliable algorithm in the presence of noise. For a practical FPP system, in order to achieve an accurate, efficient, and reliable measurement, one needs to make wise choices about three key experimental parameters: the highest fringe frequency, the phase-shifting steps, and the fringe pattern sequence. However, there was very little research on how to optimize these parameters quantitatively, especially considering all three aspects from a theoretical and analytical perspective simultaneously. In this work, we propose a new scheme to determine simultaneously the optimal fringe frequency, phase-shifting steps and pattern sequence under multi-frequency TPU, robustly achieving high accuracy measurement by a minimum number of fringe frames. Firstly, noise models regarding phase-shifting algorithms as well as 3-D coordinates are established under a projector defocusing condition, which leads to the optimal highest fringe frequency for a FPP system. Then, a new concept termed frequency-to-frame ratio (FFR) that evaluates the magnitude of the contribution of each frame for TPU is defined, on which an optimal phase-shifting combination scheme is proposed. Finally, a judgment criterion is established, which can be used to judge whether the ratio between adjacent fringe frequencies is conducive to stably and efficiently unwrapping the phase. The proposed method provides a simple and effective theoretical framework to improve the accuracy, efficiency, and robustness of a practical FPP system in actual measurement conditions. The correctness of the derived models as well as the validity of the proposed schemes have been verified through extensive simulations and experiments. Based on a normal monocular 3-D FPP hardware system, our method enables high-precision unambiguous 3-D shape measurement with the highest fringe frequency up to 180 by using only 7 fringe patterns achieving a depth precision ~ 38MUm across a field of view of 400 * 300 * 400 mm. PMID- 29041721 TI - Quantitative calibration of sound pressure in ultrasonic standing waves using the Schlieren method. AB - We investigated the use of the Schlieren method to calibrate the sound pressure in an ultrasonic standing-wave field. Specifically, we derived an equation to calculate the light intensity of the diffraction fringe induced by the standing wave field. The results indicated that the sound pressure in the standing-wave field relates to the light intensity of the diffraction fringe. Simulations and experiments were conducted to verify the theoretical calculation. We demonstrated that the ratio of the light intensity of different diffraction orders relates to the sound pressure amplitude, allowing the pressure amplitude to be calibrated with the Schlieren method. Therefore, this work presents a non-intrusive calibration method that is particularly suitable for calibrating high-frequency ultrasonic standing-wave fields. PMID- 29041722 TI - High Verdet constants and diamagnetic responses of GeS2-In2S3-PbI2 chalcogenide glasses for integrated optics applications. AB - Chalcogenide glasses as kind of diamagnetic magneto-optical materials have promising applications in the field of integrated optics and optical communication systems due to their excellent properties, such as easy to be processed into waveguide and temperature independence of the Verdet constants. For clarifying the influence factors following the compositional variation on Faraday effect and finding a glass with a large Verdet constant, novel pseudo ternary chalcogenide glass system, GeS2 - In2S3 - PbI2, was prepared and investigated. The composition, wavelength and temperature dependences on the Verdet constants were systematically investigated at the wavelengths of 635, 808, 980 and 1319 nm. PbI2 was confirmed to have positive contribution to the Verdet constant and the Becquerel rule was proved to be an effective guidance for predicting the Verdet constant in chalcogenide glasses. The 60GeS2.15In2S3.25PbI2 glass was found to possess the largest Verdet constant (V = 0.215 min.G-1.cm-1, @808nm), which is great larger than that of commercial diamagnetic glasses. These glasses also possess good glass-forming ability and VIS-IR transmittance, therefore be a good candidate for next-generation integrated optical isolator and other magneto-optical devices. PMID- 29041723 TI - Broadband near-field infrared spectroscopy with a high temperature plasma light source. AB - Scattering-type scanning near-field optical microscopy (S-SNOM) has enormous potential as a spectroscopy tool in the infrared spectral range where it can probe phonon resonances and carrier dynamics at the nanometer lengths scales. However, its applicability is limited by the lack of practical and affordable table-top light sources emitting intense broadband infrared radiation in the 100 cm-1 to 2,500 cm-1 spectral range. This paper introduces a high temperature plasma light source that is both ultra-broadband and has much more radiant power in the infrared spectral range than conventional, table-top thermal light sources such as the globar. We implement this plasma lamp in our near-field optical spectroscopy set up and demonstrate its capability as a broadband infrared nano spectroscopy light source by obtaining near-field infrared amplitude and phase spectra of the phonon resonances of SiO2 and SrTiO3. PMID- 29041724 TI - Ballistic imaging through an intense scattering medium using a supercontinuum with a roundabout spatial gate. AB - We propose a new ballistic imaging method that is capable of imaging an object through an intense scattering medium. In this method, a femtosecond supercontinuum and a roundabout spatial gate were used to suppress speckles and filter background noise, respectively. The roundabout spatial gate extracts ballistic light and avoids low-pass spatial filtering to ensure the high resolution of images. The experimental results showed that even when the optical depth of the scattering medium reached 17, the images extracted by the method had improved identifiability and contrast. PMID- 29041725 TI - Full stabilization and characterization of an optical frequency comb from a diode pumped solid-state laser with GHz repetition rate. AB - We demonstrate the first self-referenced full stabilization of a diode-pumped solid-state laser (DPSSL) frequency comb with a GHz repetition rate. The Yb:CALGO DPSSL delivers an average output power of up to 2.1 W with a typical pulse duration of 96 fs and a center wavelength of 1055 nm. A carrier-envelope offset (CEO) beat with a signal-to-noise ratio of 40 dB (in 10-kHz resolution bandwidth) is detected after supercontinuum generation and f-to-2f interferometry directly from the output of the oscillator, without any external amplification or pulse compression. The repetition rate is stabilized to a reference synthesizer with a residual integrated timing jitter of 249 fs [10 Hz - 1 MHz] and a relative frequency stability of 10-12/s. The CEO frequency is phase-locked to an external reference via pump current feedback using home-built modulation electronics. It achieves a loop bandwidth of ~150 kHz, which results in a tight CEO lock with a residual integrated phase noise of 680 mrad [1 Hz - 1 MHz]. We present a detailed characterization of the GHz frequency comb that combines a noise analysis of the repetition rate frep, of the CEO frequency fCEO, and of an optical comb line at 1030 nm obtained from a virtual beat with a narrow-linewidth laser at 1557 nm using a transfer oscillator. An optical comb linewidth of about 800 kHz is assessed at 1-s observation time, for which the dominant noise sources of frep and fCEO are identified. PMID- 29041726 TI - Realizing structural color generation with aluminum plasmonic V-groove metasurfaces. AB - Structural color printing based on all-aluminum plasmonic V-groove metasurfaces is demonstrated under both bright field and dark field illumination conditions. A broad visible color range is realized with the plasmonic V-groove arrays etched on an aluminum surface by simply varying the groove depth while keeping the groove period as a constant. Polarization dependent structural color printing is further achieved with interlaced V-groove arrays along both the horizontal and vertical directions. These results pave the way towards the use of an all aluminum structural color printing platform for many practical applications such as security marking and information storage. PMID- 29041727 TI - Optimization of nano-honeycomb structures for flexible w-LEDs. AB - This study presents the low cost fabrication of flexible white-light-emitting diodes (w-LEDs) with nano-honeycomb-structured phosphor films. Extending the dimensions of the nano-honeycomb structures improved the color uniformity of the flexible samples, and the 950-nm pattern sample demonstrated optimal color uniformity because this nano-pattern exhibited an excellent diffusion ability owing to its pitch size. In addition to color uniformity, the use of this nano pattern improved the luminous efficiency. The 750-nm pattern exhibited the highest luminous efficiency (235.8 lm/W), which was approximately 7% higher than that exhibited by a non-patterned phosphor film sample. Thus, flexible w-LEDs with nano-honeycomb structure optimization have great potential to be used as next-generation lighting sources. PMID- 29041728 TI - Transition radiation from graphene plasmons by a bunch beam in the terahertz regime. AB - The terahertz band is an increasingly important spectrum in a wide range of applications from bioimaging and medical diagnostics to security and wireless communications. We propose a tunable terahertz coherent radiation source based on graphene plasmon-induced transition radiation. The transition radiation in terahertz regime arises from the graphene plasmons, which are excited by a normally incident bunched electron beam. We analyze the field-intensities and spectral-angular distributions of the transition radiation with respect to Fermi energy, substrate dielectric permittivity, and electron bunch energy for both the coherent and incoherent radiation. The effect of electron bunching on the radiation pattern is discussed. The mechanism of plasmon frequency-selective transition radiation is discovered. PMID- 29041730 TI - Multi-pass-cell-based nonlinear pulse compression to 115 fs at 7.5 uJ pulse energy and 300 W average power. AB - We demonstrate nonlinear pulse compression by multi-pass cell spectral broadening (MPCSB) from 860 fs to 115 fs with compressed pulse energy of 7.5 uJ, average power of 300 W and close to diffraction-limited beam quality. The transmission of the compression unit is >90%. The results show that this recently introduced compression scheme for peak powers above the threshold for catastrophic self focusing can be scaled to smaller pulse energies and can achieve a larger compression factor than previously reported. Good homogeneity of the spectral broadening across the beam profile is verified, which distinguishes MPCSB among other bulk compression schemes. PMID- 29041729 TI - Approaching the diffraction-limited, bandwidth-limited Petawatt. AB - J-KAREN-P is a high-power laser facility aiming at the highest beam quality and irradiance for performing state-of-the art experiments at the frontier of modern science. Here we approached the physical limits of the beam quality: diffraction limit of the focal spot and bandwidth limit of the pulse shape, removing the chromatic aberration, angular chirp, wavefront and spectral phase distortions. We performed accurate measurements of the spot and peak fluence after an f/1.3 off axis parabolic mirror under the full amplification at the power of 0.3 PW attenuated with ten high-quality wedges, resulting in the irradiance of ~1022 W/cm2 and the Strehl ratio of ~0.5. PMID- 29041731 TI - Deep subwavelength interference lithography with tunable pattern period based on bulk plasmon polaritons. AB - Interference lithography based on surface plasmon polaritons has been proven to break the diffraction limit and deliver the high imaging resolution. However, most previously reported studies suffer from the inflexible pattern pitch for a certain structure ascribed to fixed excitation mode, which limits the applications in micro-/nano- fabrications. In this work, the large area deep subwavelength interference lithography with tunable pattern period based on bulk plasmon polaritons (BPPs) is proposed. By simply tuning the incident angle, the spatial frequencies of the selected BPPs modes squeezed through hyperbolic metamaterial changes correspondingly. As a result, the pitch of the interference pattern is continuously altered. The results demonstrate that one-dimensional and two-dimensional periodic patterns with pitch resolution ranging from 45 nm (~lambda/10) to 115 nm (~lambda/4) can be generated under 436 nm illumination. Additionally, the general method of designing such an interference lithography system is also discussed, which can be used for nanoscale fabrication in this fashion. PMID- 29041732 TI - Mode-locked Ho-doped laser with subsequent diode-pumped amplifier in an all-fiber design operating at 2052 nm. AB - We present a mode-locked holmium-doped all-fiber soliton laser operating in the 2052 nm wavelength range. The ultrashort pulse oscillator is simultaneously self providing 1950-nm radiation for efficient in-band pumping in a subsequent thulium /holmium-doped fiber tandem amplifier. More than 76 nJ-pulses for Ho:YLF or Ho:YVO4 amplifier seeding have been achieved. PMID- 29041733 TI - Real and virtual propagation dynamics of angular accelerating white light beams. AB - Accelerating waves have received significant attention of late, first in the optical domain and later in the form of electron matter waves, and have found numerous applications in non-linear optics, material processing, microscopy, particle manipulation and laser plasma interactions. Here we create angular accelerating light beams with a potentially unlimited acceleration rate. By employing wavelength independent digital holograms for the creation and propagation of white light beams, we are able to study the resulting propagation in real and virtual space. We find that dephasing occurs for real propagation and that this can be compensated for in a virtual propagation scheme when single plane dynamics are important. Our work offers new insights into the propagation dynamics of such beams and provides a versatile tool for further investigations into propagating structured light fields. PMID- 29041734 TI - Active sparse aperture imaging using independent transmitter modulation with improved incoherent Fourier ptychographic algorithm. AB - Optical sparse aperture imaging shows great promise for the next generation of high resolution systems. In this paper, we propose and demonstrate an active sparse aperture imaging approach using independent transmitter modulation to digitally overcome phasing errors, correct aberrations, and further improve resolution. The reported imaging scheme consists of a general sparse aperture system and an active illumination unit, specifically an independent pattern projector. A series of raw images are captured with the projector scanned to illuminate the object. Based on the acquired data set, the improved incoherent Fourier ptychographic algorithm is utilized to reconstruct sparse aperture images with distortions removed and contrast enhanced. Furthermore, thanks to illumination pattern modulation, higher resolution beyond the diffraction limit of the synthetic aperture system is gained as a benefit. Good-quality and higher resolution sparse aperture imagery obtained by employing our proposed technique in both simulation and experiment demonstrates the effectiveness. The reported approach may provide new insights to address the phasing and image restoration problems of sparse aperture systems in the transmitting path rather than only in the receiving path. PMID- 29041735 TI - Analysis of spurious diffraction orders of computer-generated hologram in symmetric aspheric metrology. AB - Computer-generated hologram (CGH) has been widely used as a wavefront compensator in symmetric aspheric metrology. As a diffractive element, it generates different diffraction orders, but only the 1st-order diffraction is used to test aspheric surface. The light from spurious diffraction orders (SDO) will produce many high frequency fringes in interferogram and reduce measurement accuracy. In this paper, we regard the CGH null system as an imaging system and develop an aberration model in Seidel formalism to analyze the SDO. This model has the advantage to address the difference between the SDO (k1, k2) and (k2, k1). We consider the effect of the pupil distortion so that our model can analyze the SDO with a large pupil distortion. We derive the condition to ensure the 2nd-order and 4th-order aberrations have the same sign and calculate the minimum defocused distance (power carrier frequency) of CGH. According to the marginal-ray heights (h1andh3) on the CGH in the first and second passes, we determine the condition that the SDO covers the whole CGH in the second pass. We analyze the SDO of 4 CGH designs and compare the results from our aberration model with these from real ray trace. These results validate that our aberration model is feasible whether the aspheric part is convex or concave and whether CGH is inside or outside the focus of the transmission sphere. PMID- 29041736 TI - Investigation of ultra-broadband terahertz generation from sub-wavelength lithium niobate waveguides excited by few-cycle femtosecond laser pulses. AB - The generation of coherent, ultra-broadband terahertz (THz) radiation pulses spanning more than a few octaves is vital to understanding the ultrafast response of elementary excitations, molecules, nanostructures, materials, and explore device functionality across a wide spectrum. In this work, we use 2D finite difference time-domain simulations to show that ultra-broadband (0.18-106 THz) Cherenkov radiation can be produced from SiO2:MgO-LiNbO3:SiO2 waveguides having core dimensions that are sub-wavelength with respect to the optical pump pulse being guided. These sub-wavelength core dimensions allow the ultra-broad Cherenkov radiation to be emitted at an angle between 47.2 degrees and 47.5 degrees (dictated by the Si cladding layer dispersion), making these waveguide structures superior to the THz generation arrangements in bulk MgO-LiNbO3 crystals. When excited by a 7 fs, 780 nm laser pulse having an energy of 2 nJ, a 300 um-long waveguide with transverse core dimensions of 500 nm * 2 mm can generate a sub-ps, kV/cm electric field pulse. Unlike THz pulse generation in bulk MgO-LiNbO3 crystals, having sub-wavelength core dimensions reduce the absorption from the MgO-LiNbO3 reststrahlen bands. These sub-wavelength SiO2:MgO LiNbO3:SiO2 waveguides are ideal for on-chip applications that require ultra broadband, compact THz sources. PMID- 29041737 TI - Synchronous model-based approach for wavefront sensorless adaptive optics system. AB - In this paper, an aberration correction algorithm for wavefront sensorless adaptive optics system is presented, which is based on the approximately linear relation between the mean square of the aberration gradients and the second moment of far-field intensity distribution. To demonstrate algorithm's performance, an experiment system of aberration corrections for Fresnel zone plates imaging is set up. The correction results show the excellent performance of this method in correction speed, and correction capability. Comparing with conventional stochastic parallel gradient descent (SPGD) algorithm, the correction speed with this method is improved about four times for the similar correction effect. PMID- 29041738 TI - Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes. AB - Based on electrospinning technology, in this study, we fabricated poly(lactic-co glycolic acid) (PLGA) nanofiber films with high reflectivity and scattering properties. Various films with different thicknesses and fiber diameters were fabricated by changing the electrospinning time and solution concentration, respectively. Detailed optical measurements demonstrate that the film reflectance and scattering ability increase with the thickness, whereas fiber diameter contributes little to both properties. With optimized film thickness and fiber diameter, nanofiber films feature whiteness with a reflectance of 98.8% compared to the BaSO4 white plate. Furthermore, when deposited on the reflector surface of a remote phosphor-converted light-emitting diode lamp, nanofiber films witness a correlated color temperature deviation decrease from 8880 K to 1407 K and a luminous efficiency improvement of 11.66% at 350 mA. Therefore, the nanofiber films can be applied in lighting systems as a highly reflective coating to improve their light efficacy and quality. PMID- 29041739 TI - Measurement of resonant bend loss in anti-resonant hollow core optical fiber. AB - We present the results of measurements of resonant spectral bend loss using a novel apparatus in a series of hollow core anti-resonant optical fibers, important for their applications in the delivery of industrial power ultra-short laser pulses. The measured bend losses exhibit clear wavelength-bend diameter resonances. We demonstrate, in good agreement with theoretical analysis, that the sensitivity to bend diameter (in terms of minimum bend radii) is dependent on the ratio between cladding and core structure size. By decreasing the cladding capillary diameter: core diameter ratio from 0.70 to 0.43 the minimum bend diameter is decreased from >160 mm to ~15 mm at a wavelength of 800 nm. Furthermore it is demonstrated that the exact position of the loss bands is highly dependent on the orientation of the fiber structure with the bend plane. PMID- 29041740 TI - Backside emission leaky-mode modulators. AB - We report on an advancement to leaky-mode modulators that allows for backside emission from the device. This is accomplished by adding a high spatial frequency surface relief grating (~300 nm period) to the backside of the modulator. The outcome being a theoretical arbitrary increase in usable output aperture, at the cost of angular deflection. Using backside emission, it is now possible for leaky mode modulators to be used to create transparent, holographic, direct-view near eye displays. PMID- 29041741 TI - Editorial: Optics Express - Growing Up. AB - The second Editor-in-Chief of Optics Express tells about the extraordinary growth of the journal from 2002 to 2006 and speculates on why it happened. PMID- 29041742 TI - Ag gyrus-nanostructure supported on graphene/Au film with nanometer gap for ideal surface enhanced Raman scattering. AB - The physical phenomenon, surface-enhanced Raman scattering (SERS), is mainly based on the local electromagnetic fields enhancement located at the nano-gaps between metal nanostructures attributed to localized surface plasmon resonance. Therefore, nano-gaps are very important for obtaining high-density hot spots and optimal and uniform SERS signals. However, it remains a challenge to form the three-dimensional ultra-narrow nano-gaps. Here, a gyrus-inspired Gyrus-SERS substrate was fabricated with the nanostructure of Ag gyrus/graphene/Au film using an extremely simple method. The lateral and vertical hot spots respectively were obtained from the dense nano-gaps (~3 nm) between gyrus and the coupling of Ag gyrus and Au film in bilayer graphene nano-gaps (0.68 nm), which were demonstrated in experiment and theory. The proposed Gyrus-SERS platform performs an excellent SERS activity (EF~5 * 109), high sensitivity (the minimum detected concentration of R6G and CV respectively is 10-13 and 10-12 M), and outstanding reproducibility (RSD~7.11%). For practical application, the in situ detection of Malachite green (MG) residue on prawn skin was executed using the prepared flexible Gyrus-SERS substrate, which shows the wide potential in food safety field. PMID- 29041743 TI - Ultrafast laser inscription in ZBLAN integrated optics chips for mid-IR beam combination in astronomical interferometry. AB - Astronomical interferometry is a unique technique that allows observation with angular resolutions on the milliarcsec scale by combining the light of several apertures hundreds of meters apart. The PIONIER and GRAVITY instruments at the Very Large Telescope Interferometer have demonstrated that silica-based integrated optics (IO) provide a small-scale and highly stable solution for the interferometric beam combination process. Yet, important science cases such as exoplanet hunting or the spectroscopic characterization of exoplanetary atmospheres are favorable for observation in the mid-IR, namely the atmospheric windows L and L' band (3-4 um), a wavelength range that is not covered by conventional silica-based IO. Here, we propose laser-inscribed IO 2*2 couplers in ZBLAN and experimentally assess the critical properties of the component for broadband mid-IR interferometry. We measure the splitting ratio over the 2.5 to 5.0 um range and find excellent broadband contrast over the L (3.1-3.6 um) and L' (3.6 - 4.0 um) bands. Furthermore, we quantify the dispersion properties of the coupler and find a phase variation as low as 0.02 rad across the L and L' band, respectively. By optimizing the NA of our injection beam, we measured a very high total throughput of 58% over the L band including Fresnel reflection and coupling losses. We also compare our findings to recent advances in mid-IR IO in GLS and discuss its advantages and disadvantages for the implementation in future mid-IR interferometers. PMID- 29041744 TI - Volume holographic recording in Irgacure 784-doped PMMA photopolymer. AB - Photoinitiator plays a crucial role on photopolymer. Unlike photoinitiator phenanthrenequinone (PQ), the solubility of Irgacure 784 dissolved in MMA is very high. In this paper, we use Irgacure 784 as photoinitiator doped in poly(methyl methacrylate)(PMMA)to make a bulk photopolymer with high photoinitiator concentration for holographic data storage. The effect of concentration of photoinitiator and record intensity are experimentally investigated. The results reveal the material has an optimum condition in holographic recording. A comparison between our material and the material of PQ doped PMMA is carried out by experiment. It is found that our material has better performance on diffraction efficiency, refractive index modulation and recording sensitivity. Besides, this material also has polarization sensitivity, which can be applied to polarization holography. With the capacity of recording polarization holography and conventional intensity holography simultaneously, the Irgacure 784 doped PMMA material is expected to be applied in holographic data storage. PMID- 29041745 TI - 1.5 MUm polarization coherent lidar incorporating time-division multiplexing. AB - Atmospheric depolarization ratio and wind velocity are measured simultaneously by a single versatile coherent Doppler lidar (CDL). Backscattering components at parallel and perpendicular polarization states are obtained by using a single balanced detector, adopting time-division multiplexing technique. Thus systematic error induced by the non-uniform response of different detectors in traditional lidars is avoided. The operation mode of the instrument can be switched from polarization CDL to traditional CDL by the user depending on atmospheric conditions and desired performance. As demonstrated, the perpendicular component of the backscattering, usually wasted, not only can be used to retrieve the ADR, but also can be used to improve the carrier to noise ratio in wind detection. In the traditional mode, given a tolerance of 0.5 m/s precision, a detection range of 6 km is achieved by using a 300 ns laser pulse with energy of 100 MUJ, where the temporal and spatial resolution of 2 s and 60 m, respectively. Continuous wind detection of the atmospheric boundary layer over 26 hours is presented to demonstrate the robustness and stability of the system. Dynamic evolution and wind structure are recorded. PMID- 29041746 TI - Ultra-compact optical zoom endoscope using solid tunable lenses. AB - We report an ultra-compact optical zoom endoscope containing two tunable Alvarez lenses. The two tunable lenses are controlled synchronously by piezoelectric benders to move in directions perpendicular to the optical axis to achieve optical zoom while keeping images in clear focus without moving the scope. The piezoelectric benders are arranged circumferentially surrounding the endoscope optics with a diameter about 2 mm, which results in an ultra-compact form. The demonstrated endoscope is capable of optical zoom close to 3 * from field of view (FOV) 50 degrees to 18 degrees continuously with the required movements for its constituent optical elements less than 110 MUm. Such optical zoom endoscopes may find their potential uses in healthcare and industrial inspection systems. PMID- 29041747 TI - Polarization-dependent electromagnetic responses in an A-shape metasurface. AB - We numerically and experimentally demonstrate polarization-dependent terahertz responses in a proposed metasurface of A-shape resonators. With the horizontal polarization incidence, the observed transmission window is formed by two resonance dips, corresponding to the inductive-capacitive resonance at the lower frequency and the high-order antisymmetric resonance at a higher frequency, respectively. When the incident wave is perpendicularly polarized, the transmission window arises from the plasmon-induced transparency spectral response. The origin of the polarization-sensitive resonance properties is revealed by mapping the electric field and terahertz-induced surface current in the proposed metamaterials. Moreover, the influence of the geometry of the A shape microstructures on the transmission spectra is analyzed. These polarization dependent metamaterials may provide more degrees of freedom in tuning the electromagnetic responses, thus offering a path toward robust metamaterials design. PMID- 29041748 TI - Optical switch compatible with wavelength division multiplexing and mode division multiplexing for photonic networks-on-chip. AB - We propose a 2 * 2 multimode optical switch, which is composed of two mode de multiplexers, n 2 * 2 single-mode optical switches where n is the number of the supported spatial modes, and two mode multiplexers. As a proof of concept, asymmetric directional couplers are employed to construct the mode multiplexers and de-multiplexers, balanced Mach-Zehnder interferometer is utilized to construct the 2 * 2 single-mode optical switches. The fabricated silicon 2 * 2 multimode optical switch has a broad optical bandwidth and can support four spatial modes. The link-crosstalk for all four modes is smaller than -18.8 dB. The inter-mode crosstalk for the same optical link is less than -22.1 dB. 40 Gbps data transmission is performed for all spatial modes and all optical links. The power penalties for the error-free switching (BER<10-9) at 25 Gbps are less than 1.8 dB for all channels at the wavelength of 1550 nm. The power consumption of the device is 117.9 mW in the "cross" state and 116.2 mW in the "bar" state. The switching time is about 21 MUs. This work enables large-capacity multimode photonic networks-on-chip. PMID- 29041749 TI - Surface vector plasmonic lattice solitons in semi-infinite graphene-pair arrays. AB - We investigate the surface vector plasmonic lattice solitons (PLSs) in semi infinite graphene-pair arrays (GPAs). The surface vector PLSs are composed of two components which are associated with different band gaps. Both components undergo mutual self-trapping at the boundary of the semi-infinite structure when the self focusing nonlinearity of graphene and the light diffraction reach a balance. Thanks to the strong confinement of SPPs, the surface vector PLSs can be squeezed into a deep-subwavelength width of ~0.003lambda. By comparing with bulk solitons, the surface PLSs are more readily to excite by external waves and more sensitive to the surrounding environment. The study may develop promising applications in all-optical switching devices and optical sensors on deep-subwavelength scale. PMID- 29041750 TI - Continuous-wave THz vector imaging system utilizing two-tone signal generation and self-mixing detection. AB - We propose and demonstrate a continuous-wave vector THz imaging system utilizing a photonic generation of two-tone THz signals and self-mixing detection. The proposed system measures amplitude and phase information simultaneously without the local oscillator reference or phase rotation scheme that is required for heterodyne or homodyne detection. In addition, 2pi phase ambiguity that occurs when the sample is thicker than the wavelength of THz radiation can be avoided. In this work, THz signal having two frequency components was generated with a uni traveling-carrier photodiode and electro-optic modulator on the emitter side and detected with a Schottky barrier diode detector used as a self-mixer on the receiver side. The proposed THz vector imaging system exhibited a 50-dB signal to noise ratio and 0.012-rad phase fluctuation with 100-MUs integration time at 325 GHz. With the system, we demonstrate two-dimensional THz phase contrast imaging. Considering the recent use of two-dimensional arrays of Schottky barrier diodes as a THz image sensor, the proposed system is greatly advantageous for realizing a real-time THz vector imaging system due to its simple receiver configuration. PMID- 29041751 TI - Reduction of modal evolution fluctuation in 2-LP mode optical time domain reflectometry. AB - This paper describes theoretical and experimental investigations of an optical time domain reflectometry (OTDR) that conducts measurements in the 2-LP mode region of the fiber under test. Rayleigh backscattering amplitude coefficients from the HE11 mode to higher-order vector modes are analyzed to clarify the evolution in the state of polarization of the backscattered vector modes with respect to that of the probe HE11 mode. Based on the analysis, we then propose a technique for reducing amplitude fluctuations in the OTDR traces attributed to intensity distribution evolution of the LP11 mode. A proof-of-concept demonstration is performed on optical fibers in the laboratory and field environments, and the measured results confirm its usefulness. PMID- 29041752 TI - Polarization squeezing at the audio frequency band for the Rubidium D1 line. AB - A 2.8-dB polarization squeezing of the Stokes operatorS^2for the rubidium D1 line (795 nm) is achieved, with the lowest squeezing band at an audio frequency of 2.6 kHz. It is synthetized by a bright coherent beam and a squeezed vacuum, which are orthogonally polarized and share same frequency. Two methods are applied to support the optical parametric oscillator: an orthogonally-polarized locking beam that precludes residual unwanted interference and quantum noise locking method that locks the squeezing phase. Besides, the usage of low noise balanced detector, mode cleaner and the optical isolator helped to improve the audio frequency detection. The squeezing level is limited by absorption-induced losses at short wavelengths, which is 397.5 nm. The generated polarization squeezed light can be used in a quantum enhanced magnetometer to increase the measurement sensitivity. PMID- 29041753 TI - Triple band frequency generator based on an optoelectronic oscillator with low phase noise. AB - A triple band frequency generator based on the optoelectronic oscillator (OEO) with low phase noise has been proposed and experimentally demonstrated. In this novel scheme, the phase-coherent triple band frequency in C, Ku and K bands can be achieved simultaneously by biasing the first modulator in the oscillation loop at the minimum transmission point (MITP) and the second modulator near the MITP with a small deviation. In the proof-of-concept experiment, the triple band frequency signals at 5.36, 16.08 and 21.44 GHz are generated with the phase noise of -123.32, -113.68 and -111.19 dBc/Hz at 10 kHz offset frequency, respectively. The proposed scheme provides a novel strategy for phase-coherent multi-band frequency and low phase noise signals generation, which can be potentially used in the multi-function and multi-band frequency electrical systems. PMID- 29041754 TI - Wave-vector and polarization dependent impedance model for a hexagonal periodic metasurface exemplified through finite-difference time-domain simulations. AB - An isotropic impedance sheet model is proposed for a loop-type hexagonal periodic metasurface. Both frequency and wave-vector dispersion are considered near the resonance frequency. Therefore both the angle and polarization dependences of the metasurface impedance can be properly and simultaneously described in our model. The constitutive relation of this model is transformed into auxiliary differential equations which are integrated into the finite-difference time domain algorithm. Finally, a finite large metasurface sample under oblique illumination is used to test the model and the algorithm. Our model and algorithm can significantly increase the accuracy of the homogenization methods for modeling periodic metasurfaces. PMID- 29041755 TI - Feedforward linearization for RF photonic link with broadband adjustment-free operation. AB - Linearization of radio frequency (RF) photonic link is critical for advance applications because a nonlinear transfer function of electro-optic modulation limits link dynamic range. Although numerous approaches to suppress third order intermodulation distortion (IMD3) have been demonstrated in previous literatures, many schemes need attendant link optimization when an input RF carrier frequency is tuned over a broad band. In this paper, we propose and demonstrate an adjustment-free linearization approach where high dynamic range could be kept during RF frequency tuning. After a regular low-biased external modulation, the "distortion information" is extracted by a baseband receiver, which then modulates the optically-carried RF signal again. Such distortion extraction and correction is baseband and is independent on the frequency of the RF frequency. The proposal is theoretically analyzed and simulated. In an experiment, IMD3 nonlinear spurs are suppressed over around 60 dB uniformly under typical input RF power, while the carrier is tuned from 4 GHz to 12 GHz. The spurious-free dynamic range (SFDR) is kept around 125 dB within 1-Hz bandwidth without attendant optimization of link parameters. PMID- 29041756 TI - Dual tunable plasmon-induced transparency based on silicon-air grating coupled graphene structure in terahertz metamaterial. AB - A graphene plasmonic structure consists of three graphene layers mingled with a silicon-air grating is proposed. We theoretically predict and numerically simulate the plasmon-induced transparency effect in this system at terahertz wavelengths, and a dual plasmon-induced transparency peaks can be successfully tuned by virtually shifting the desired Fermi energy on graphene layers. We investigate the surface plasmon dispersion relation by means of analytic calculations, and we can achieve the numerical solution of propagation constant got by the dispersion relation. A suitable theoretical model is established to study spectral features in the plasmonic graphene system, and the theoretical results agree well with the simulations. The proposed model and findings may provide guidance for fundamental research of highly tunable optoelectronic devices. PMID- 29041757 TI - Improvement of the temporal and spatial contrast of the nonlinear Fourier-filter. AB - Recently a novel method called nonlinear Fourier-filtering was suggested for temporal and spatial cleaning of high-brightness laser pulses. In this paper experimental demonstration of the associated spatial filtering of this method and significant improvement of the temporal filtering feature are presented. The formerly found limit of ~103 for the temporal contrast improvement is identified as diffraction effects caused by the limited numerical aperture of imaging. It is shown by numerical simulation that proper apodization of the object can lead to sufficiently higher limit (>108). Using an advanced experimental arrangement the improvement of >2 orders of magnitude is experimentally verified in the ultraviolet and an indirect proof is presented that the background caused by the optical arrangement is reduced below 10-7. PMID- 29041758 TI - Total momentum transfer produced by the photons of a multi-pass laser beam as an evident avenue for optical and mass metrology. AB - The use of the radiation pressure of a laser field, as an effect of the momentum transfer of the absorbed and re-emitted photons, suggests rather a complementary than an alternative possibility for metrology to generate calibration forces or to calibrate the optical power directly traceable to the International System of Units (SI). This paper reports a method and experimentally measured evidence on options to extend the effective use of radiation pressure for generating optical forces in the sub-microNewton (MUN) range. Among other features and results presented, we emphasize the variability in controlling the accuracy of these forces through the proper utilization of the power of a multi-pass laser beam (semi- or completely) locked within confined systems. The direct measurements of these forces, augmented due to the partial or total momentum transfer of the photons of a multi-pass laser beam extended from several hundreds of picoNewton (pN) up to sub-MUN range for the same power of laser source, are done by a precision force measurement system and compared with basic theoretical computations. We also discuss the opportunities to probe the fundamental physical limits associated with this method and to the considerable extent other competing contributing effects that might be regarded as sources of errors in metrological tasks. PMID- 29041759 TI - Assembly and alignment method for optimized spatial resolution of off-axis three mirror fore optics of hyperspectral imager. AB - A fore optics for the hyperspectral spectrometer is designed, manufactured, assembled, and aligned. The optics has a telecentric off-axis three-mirror configuration with a field of view wider than 14 degrees and an f-number as small as 2.3. The primary mirror (M1) and the secondary mirror (M2) are axially symmetric aspheric surfaces to minimize the sensitivity. The tertiary mirror (M3) is a decentered aspheric surface to minimize the coma and astigmatism aberration. The M2 also has a hole for the slit to maintain the optical performance while maximizing the telecentricity. To ensure the spatial resolution performance of the optical system, an alignment procedure is established to assemble and align the entrance slit of the spectrometer to the rear end of the fore optics. It has a great advantage to confirm and maintain the alignment integrity of the fore optics module throughout the alignment procedure. To perform the alignment procedure successfully, the precision movement control requirements are calculated and applied. As a result, the alignment goal of the RMS wave front error (WFE) to be smaller than 90 nm at all fields is achieved. PMID- 29041760 TI - 10-m 9.51-Gb/s RGB laser diodes-based WDM underwater wireless optical communication. AB - The availability of the underwater wireless optical communication (UWOC) based on red (R), green (G) and blue (B) lights makes the realization of the RGB wavelength division multiplexing (WDM) UWOC system possible. By properly mixing RGB lights to form white light, the WDM UWOC system has prominent potentiality for simultaneous underwater illumination and high-speed communication. In this work, for the first time, we experimentally demonstrate a 9.51-Gb/s WDM UWOC system using a red-emitting laser diode (LD), a single-mode pigtailed green emitting LD and a multi-mode pigtailed blue-emitting LD. By employing 32 quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) modulation in the demonstration, the red-light, the green-light and the blue-light LDs successfully transmit signals with the data rates of 4.17 Gb/s, 4.17 Gb/s and 1.17 Gb/s, respectively, over a 10-m underwater channel. The corresponding bit error rates (BERs) are 2.2 * 10-3, 2.0 * 10-3 and 2.3 * 10-3, respectively, which are below the forward error correction (FEC) threshold of 3.8 * 10-3. PMID- 29041761 TI - Spectrally pure heralded single photons by spontaneous four-wave mixing in a fiber: reducing impact of dispersion fluctuations. AB - We model the spectral quantum-mechanical purity of heralded single photons from a photon-pair source based on nondegenerate spontaneous four-wave mixing taking the impact of distributed dispersion fluctuations into account. The considered photon pair-generation scheme utilizes pump-pulse walk-off to produce pure heralded photons and phase matching is achieved through the dispersion properties of distinct spatial modes in a few-mode silica step-index fiber. We show that fiber core-radius fluctuations in general severely impact the single-photon purity. Furthermore, by optimizing the fiber design we show that generation of single photons with very high spectral purity is feasible even in the presence of large core-radius fluctuations. At the same time, contamination from spontaneous Raman scattering is greatly mitigated by separating the single-photon frequency by more than 32 THz from the pump frequency. PMID- 29041762 TI - Electromagnetic behavior of spatial terahertz wave modulators based on reconfigurable micromirror gratings in Littrow configuration. AB - Efficient, high speed spatial modulators with predictable performance are a key element in any coded aperture terahertz imaging system. For spectroscopy, the modulators must also provide a broad modulation frequency range. In this study, we numerically analyze the electromagnetic behavior of a dynamically reconfigurable spatial terahertz wave modulator based on a micromirror grating in Littrow configuration. We show that such a modulator can modulate terahertz radiation over a wide frequency range from 1.7 THz to beyond 3 THz at a modulation depth of more than 0.6. As a specific example, we numerically simulated coded aperture imaging of an object with binary transmissive properties and successfully reconstructed the image. PMID- 29041763 TI - Novel OBI noise reduction technique by using similar-OBI estimation in optical multiple access uplink. AB - A novel optical beat interference (OBI) noise reduction technique for optical multiple access uplink using the same wavelength is presented. The OBI noise is estimated by similar-OBI and mitigated by subtracting estimated OBI noise using the digital signal processing technique. To derive similar-OBI, an RF clipping tone is transmitted out of signal band. We numerically and experimentally verified the validity of proposed OBI noise reduction method in orthogonal frequency division multiplexing access (OFDMA) passive optical network (PON) uplink where the OBI noise has been reduced and signal to noise ratio (SNR) has been improved from 4.4 dB to 10.6 dB. PMID- 29041764 TI - Energetic radially polarized few-cycle pulse compression in gas-filled hollow core fiber. AB - The compression of high-energy, radially polarized pulses in a gas-filled hollow core fiber (HCF) is theoretically studied. The simulation results indicate that a 40-fs input pulse can be compressed to a full-width at half-maximum of less than 9 fs when the pulse energy reaches 7.0 mJ with a transmission efficiency of more than 67% after propagating through a 1-m-long, 500-MUm diameter HCF filled with neon. Furthermore, the spatio-temporal intensity distributions of the compressed pulses with different initial input energies are studied, and the numerical results indicate that the spatio-temporal intensity distributions are more uniform for lower input pulse energies. PMID- 29041765 TI - Generation of two-temporal-mode photon states by vector four-wave mixing. AB - Photon pair states and multiple-photon squeezed states have many applications in quantum information science. In this paper, Green functions are derived for spontaneous four-wave mixing in the low- and high-gain regimes. Nondegenerate four-wave mixing in a strongly-birefringent medium generates signal and idler photons that are associated with only one pair of temporal (Schmidt) modes, for a wide range of pump powers and arbitrary pump shapes. The Schmidt coefficients (expected photon numbers) depend sensitively on the pump powers, and the Schmidt functions (shapes of the photon wavepackets) depend sensitively on the pump powers and shapes, which can be controlled. PMID- 29041766 TI - Image quality improvement of multi-projection 3D display through tone mapping based optimization. AB - An optical 3D screen usually shows a certain diffuse reflectivity or diffuse transmission, and the multi-projection 3D display suffers from decreased display local contrast due to the crosstalk of multi-projection contents. A tone mapping based optimizing method is innovatively proposed to suppress the crosstalk and improve the display contrast by minimizing the visible contrast distortions between the display light field and a targeted one with enhanced contrast. The contrast distortions are weighted according to the visibility predicted by the model of human visual system, and the distortions are minimized for the given multi-projection 3D display model that enforces constrains on the solution. Our proposed method can adjust parallax images or parallax video contents for the optimum 3D display image quality taking into account the display characteristics and ambient illumination. The validity of the method is evaluated and proved in experiments. PMID- 29041767 TI - High-sensitivity complex refractive index sensing based on Fano resonance in the subwavelength grating waveguide micro-ring resonator. AB - High-sensitivity complex refractive index sensing is proposed and experimentally demonstrated, favoring with sharp Fano resonance at 1550 nm wavelength based on subwavelength grating waveguide (SWG) micro-ring resonator. The micro-ring is composed by trapezoidal silicon pillars with subwavelength period to enhance the light-analyte overlap and get high quality factor as well. One straight SWG waveguide is side coupled with the micro-ring, which is specially designed to produce partial Fabry-Perot (FP) effect. Due to the interaction of resonant state of micro-ring and partial FP effect in straight waveguide, a sharp asymmetrical Fano resonance is formed at 1550 nm wavelength. Benefit from the large light analyte overlap of the SWG waveguide structure and the sharp asymmetrical Fano resonance in spectrum, high theoretical sensitivities of 366 nm/RIU and 9700/RIU can be realized for the real part (n) and the imaginary part (kappa) of refractive index respectively. We also experimentally demonstrate the sensing for glucose solution concentrations, and high experimental sensitivity of 363nm/RIU is obtained for n, and for kappa the experimental results are also in well agreement with the simulation results. PMID- 29041768 TI - Dissipative soliton resonance in Bismuth-doped fiber laser. AB - We experimentally demonstrate the generation of dissipative soliton resonance (DSR) in a passively mode-locked Bi-doped fiber ring laser based on nonlinear polarization rotation (NPR) technique. The DSR with the central wavelength of 1169.5 nm has a repetition rate of 343.7 kHz. By purely increasing the pump power, the DSR evolves from Gaussian shape to rectangular shape with the duration extending from 2.1 ns to 13.1 ns, while keeping the pulse amplitude and the 3-dB spectrum bandwidth almost constant. The single-pulse energy reaches 24.82 nJ. Furthermore, we construct a lumped model to reproduce the mode-locking process and the traits of the DSR pulse. The obtained results indicate that it could achieve higher pulse energy in mode-locked Bi-doped fiber laser by generating DSR. PMID- 29041769 TI - High mechanical bandwidth fiber-coupled Fabry-Perot cavity. AB - Fiber-based optical microcavities exhibit high quality factor and low mode volume resonances that make them attractive for coupling light to individual atoms or other microscopic systems. Moreover, their low mass should lead to excellent mechanical response up to high frequencies, opening the possibility for high bandwidth stabilization of the cavity length. Here, we demonstrate a locking bandwidth of 44 kHz achieved using a simple, compact design that exploits these properties. Owing to the simplicity of fiber feedthroughs and lack of free-space alignment, this design is inherently compatible with vacuum and cryogenic environments. We measure the transfer function of the feedback circuit (closed loop) and the cavity mount itself (open-loop), which, combined with simulations of the mechanical response of our device, provide insight into underlying limitations of the design as well as further improvements that can be made. PMID- 29041770 TI - Ultra-efficient Raman amplifier in methane-filled hollow-core fiber operating at 1.5 MUm. AB - We report on what is, to the best of our knowledge, the first ultra-efficient 1.5 MUm Raman amplifier in a methane-filled anti-resonance hollow-core fiber. A 1.5 MUm single frequency seed laser is coupled into the hollow-core fiber together with a 1064 nm pulsed pump laser using a shortpass dichromic mirror, and then amplified by stimulated Raman scattering of methane. A maximum optical-to-optical conversion efficiency of 66.4% has been obtained, resulting in a record near quantum-limit efficiency of 96.3% in a 2 m long hollow-core fiber filled with only 2 bar methane gas. This kind of gas filled hollow-core Raman amplifier provides a potential method to obtain high efficiency mid-infrared laser sources with low threshold and narrow linewidth in various applications. PMID- 29041771 TI - Enhancing ultraviolet spontaneous emission with a designed quantum vacuum: erratum. AB - We present a correction to parts of Fig. 5, Fig. 6 and Fig. 7, relating to the Purcell factors and Lamb shifts, due to an incorrect renormalization used in our custom Fortran code. The resulting corrections to some of the Q-factors are large, but do not affect the conclusions of the original manuscript. PMID- 29041772 TI - Randomized apertures: high resolution imaging in far field: erratum. AB - We note a correction to Eq. (6) for [ Opt. Express25(15), 18296 (2017)]. PMID- 29041773 TI - Total Synthesis of Resiniferatoxin Enabled by Radical-Mediated Three-Component Coupling and 7-endo Cyclization. AB - Resiniferatoxin (1) belongs to a daphnane diterpenoid family and has strong agonistic effects on TRPV1, a transducer of noxious temperature and chemical stimuli. The densely oxygenated trans-fused 5/7/6-tricarbocycle (ABC-ring) of 1 presents a daunting challenge for chemical synthesis. Here we report the development of a novel radical-based strategy for assembling 1 from three components: A-ring 9, allyl stannane 18b, and C-ring 17b. The 6-membered 17b, prepared from d-ribose derivative 19, was designed to possess the caged orthoester structure with alpha-alkoxy selenide as a radical precursor. Upon treatment of 17b with 18b, 9, and V-40, the potently reactive alpha-alkoxy bridgehead radical was generated from 17b and then sequentially coupled with 9 and 18b to yield 16b. This first radical reaction formed the hindered C9,10 linkage between the A and C-rings and extended the C4-chain on the A-ring in a stereoselective fashion. After derivatization of 16b into 15, the remaining 7 membered B-ring was cyclized in the presence of n-Bu3SnH and V-40 by utilizing the xanthate on the C-ring as the radical precursor and the allylic dithiocarbonate as the terminator. The second radical reaction thus enabled not only the 7-endo cyclization but also construction of the C8-stereocenter and the C6-exo olefin. Tricycle 14 was elaborated into the targeted 1 by a series of highly optimized chemoselective reactions. The present total synthesis of 1 demonstrates the advantages of radical reactions for linking hindered bonds within carbocycles without damaging preexisting functionalities, thereby offering a new strategic design for multistep target-oriented synthesis. PMID- 29041774 TI - Enforced Tubular Assembly of Electronically Different Hexakis(m-Phenylene Ethynylene) Macrocycles: Persistent Columnar Stacking Driven by Multiple Hydrogen Bonding Interactions. AB - Hexakis(m-phenylene ethynylene) (m-PE) macrocycles 1-4, sharing the same hydrogen bonding side chains but having backbones of different electronic properties, are designed to probe the effectiveness of multiple H-bonding interactions in enforcing columnar assemblies. 1H NMR, absorption, fluorescence, and circular dichroism (CD) spectroscopy indicate that, compared with analogous macrocycles that self-associate based on aromatic stacking which is highly sensitive to the electronic nature of the macrocyclic backbones, macrocycles 1-4 all exhibit strong aggregation down to the micromolar (MUM) concentrations in nonpolar solvents. Increasing solvent polarity quickly weakens aggregation. In THF and DMF, the macrocycles exist as free molecules. The observed solvent effects, along with the behavior of 5-F6 that cannot self-associate via H-bonding, confirm that H-bonding plays the dominating role in driving the self-association of 1-4. The backbone electronic nature does not change the self-assembling pattern common to 1-4. Fluorescence and CD spectra confirm that macrocycles 1-4 assemble anisotropically, forming helical stacks in which adjacent molecules undergo relative rotation to place individual benzene residues in the favorable offset fashion. Columnar alignment of 1-4 is confirmed by atomic force microscopy (AFM), which resolves single tubes consisting of stacked macrocycles. In addition, macrocycles with backbones of different electronic properties are found to undergo heteroassociation, forming hybrid nanotubes. This study has demonstrated the generality of enforcing the alignment of shape-persistent macrocycles, which represents an invaluable addition to the small number of known tubular stacks capable of accommodating structurally varied molecular components and provides self-assembling nanotubes with inner pores allowing ready structural and functional modification. PMID- 29041775 TI - Lychee (Litchi chinensis Sonn.) Pulp Phenolic Extract Provides Protection against Alcoholic Liver Injury in Mice by Alleviating Intestinal Microbiota Dysbiosis, Intestinal Barrier Dysfunction, and Liver Inflammation. AB - Liver injury is the most common consequence of alcohol abuse, which is promoted by the inflammatory response triggered by gut-derived endotoxins produced as a consequence of intestinal microbiota dysbiosis and barrier dysfunction. The aim of this study was to investigate whether modulation of intestinal microbiota and barrier function, and liver inflammation contributes to the hepatoprotective effect of lychee pulp phenolic extract (LPPE) in alcohol-fed mice. Mice were treated with an ethanol-containing liquid diet alone or in combination with LPPE for 8 weeks. LPPE supplementation alleviated ethanol-induced liver injury and downregulated key markers of inflammation. Moreover, LPPE supplementation reversed the ethanol-induced alteration of intestinal microbiota composition and increased the expression of intestinal tight junction proteins, mucus protecting proteins, and antimicrobial proteins. Furthermore, in addition to decreasing serum endotoxin level, LPPE supplementation suppressed CD14 and toll-like receptor 4 expression, and repressed the activation of nuclear factor-kappaB p65 in the liver. These data suggest that intestinal microbiota dysbiosis, intestinal barrier dysfunction, and liver inflammation are improved by LPPE, and therefore, the intake of LPPE or Litchi pulp may be an effective strategy to alleviate the susceptibility to alcohol-induced hepatic diseases. PMID- 29041776 TI - Trivalent Zirconium and Hafnium Metal-Organic Frameworks for Catalytic 1,4 Dearomative Additions of Pyridines and Quinolines. AB - We report the quantitative conversion of [MIV6(MU3-O)4(MU3-OH)4Cl12]6- nodes in the MCl2-BTC metal-organic framework into the [MIII6(MU3-O)4(MU3-ONa)4H6]6- nodes in MIIIH-BTC (M = Zr, Hf; BTC is 1,3,5-benzenetricarboxylate) via bimetallic reductive elimination of H2 from putative [MIV6(MU3-O)4(MU3-OH)4H12]6- nodes. The coordinatively unsaturated MIIIH centers in MIIIH-BTC are highly active and selective for 1,4-dearomative hydroboration and hydrosilylation of pyridines and quinolines. This work demonstrated the potential of secondary building unit transformation in generating electronically unique and homogeneously inaccessible single-site solid catalysts for organic synthesis. PMID- 29041777 TI - Frequency Dependence of Low-Voltage Electrowetting Investigated by Impedance Spectroscopy. AB - An electrowetting-on-dielectric (EWOD) electrode was developed that facilitates the use of low alternating voltages (<=5 VAC). This allows online investigation of the frequency dependence of electrowetting by means of impedance spectroscopy. The EWOD electrode is based on a dielectric bilayer consisting of an anodic tantalum pentoxide (Ta2O5) thin film (d = 59.35 nm) with a high relative permittivity (epsilond = 26.3) and a self-assembled hydrophobic silane monolayer. The frequency dependence of electrowetting was studied using an aqueous MUL-sized sessile droplet on the planar EWOD electrode in oil. Experiments using electrochemical impedance spectroscopy and optical imaging indicate the frequency dependence of all three variables in the Young-Lippmann equation: the voltage drop across the dielectric layers, capacitance per unit area, and contact angle under voltage. The electrowetting behavior induced by AC voltages is shown to be well described by the Young-Lippmann equation for AC applications below a frequency threshold. Moreover, the dielectric layers act as a capacitor and the stored electrostatic potential energy is revealed to only partially contribute to the electrowetting. PMID- 29041778 TI - Electrolysis-Driven and Pressure-Controlled Diffusive Growth of Successive Bubbles on Microstructured Surfaces. AB - Control over the bubble growth rates forming on the electrodes of water-splitting cells or chemical reactors is critical with respect to the attainment of higher energy efficiencies within these devices. This study focuses on the diffusion driven growth dynamics of a succession of H2 bubbles generated at a flat silicon electrode substrate. Controlled nucleation is achieved by means of a single nucleation site consisting of a hydrophobic micropit etched within a micrometer sized pillar. In our experimental configuration of constant-current electrolysis, we identify gas depletion from (i) previous bubbles in the succession, (ii) unwanted bubbles forming on the sidewalls, and (iii) the mere presence of the circular cavity where the electrode is being held. The impact of these effects on bubble growth is discussed with support from numerical simulations. The time evolution of the dimensionless bubble growth coefficient, which is a measure of the overall growth rate of a particular bubble, of electrolysis-generated bubbles is compared to that of CO2 bubbles growing on a similar surface in the presence of a supersaturated solution of carbonated water. For electrolytic bubbles and under the range of current densities considered here (5-15 A/m2), it is observed that H2 bubble successions at large gas-evolving substrates first experience a stagnation regime, followed by a fast increase in the growth coefficient before a steady state is reached. This clearly contradicts the common assumption that constant current densities must yield time-invariant growth rates. Conversely, for the case of CO2 bubbles, the growth coefficient successively decreases for every subsequent bubble as a result of the persistent depletion of dissolved CO2. PMID- 29041780 TI - ACS Chemical Neuroscience: Most Cited Papers from 2016. PMID- 29041781 TI - Nursing students' perceptions of soft skills training in Ghana. AB - BACKGROUND: The quality of nursing care rendered today is markedly reducing and the amount of time spent with patients listening to and explaining issues concerning their conditions is gradually diminishing. The therapeutic touch and the listening ear of the nurse are no longer accessible to the patient. Understanding what non-technical skills are and their relevance for healthcare practitioners has become a new area of consideration. Although recent literature has highlighted the necessity of introducing soft skills training and assessment within medical education, nursing education is yet to fully embrace this skills training. OBJECTIVES: The aim of this study was to explore nursing students' understanding of the concept of soft skills and to acquire their perception on the need for soft skills training to promote quality nursing care. METHODS: A quantitative research design with descriptive and explorative strategies was used. One hundred and ten nursing students were sampled after permission to conduct the study was requested and obtained from the University of KwaZulu-Natal Ethics Committee. RESULTS: The results indicated that a majority (68.8%) of respondents understood the concept of soft skills and agreed with the definition of 'soft skills'. They furthermore agreed that soft skills should be part of the training that student nurses receive during their professional training. CONCLUSION: The study revealed that there is a need for nursing students to be educated in soft skills and that this will enhance their job performances in the clinical environment and improve the way in which they communicate with their clients. PMID- 29041782 TI - A model of collaboration between nursing education institutions in the North West Province of South Africa. AB - BACKGROUND: Professional nursing in South Africa is obtained through a 4-year diploma offered at nursing colleges, or a 4-year degree in universities, and the South African Nursing Council (SANC) registered both for professional nursing. New SANC legislation now requires a bachelor's degree for registration as professional nurse. OBJECTIVES: The aim of the study was to explore and describe perceptions of nurse educators and stakeholders to develop a model of collaboration for joint education and training of nursing professionals by colleges and universities through a bachelor's degree. METHOD: A mixed methods approach was used to explore perceptions of nurse educators utilising a questionnaire, and perceptions of other nurse training stakeholders through interviews, about a model of collaboration between the college and the university. RESULTS: Themes that emerged from the interviews included identifying collaboration goals, establishing a conducive environment, maximising exchange of resources, role clarification and perceived challenges. Quantitative results showed high agreement percentages (84.13%-100%) on most basic concepts and themes. A model of collaboration was developed indicating a framework, agents, recipients, procedure, dynamics, and terminus. CONCLUSION: A model of collaboration was acceptable to the majority of nurse education stakeholders. Other implications are that there was a need for the improvement of scholarship among nurse educators and clinical mentors, sharing rare skills, and addressing perceived challenges. PMID- 29041784 TI - Descriptive study of burnout, compassion fatigue and compassion satisfaction in undergraduate nursing students at a tertiary education institution in KwaZulu Natal. AB - BACKGROUND: Studies have investigated burnout and compassion fatigue among nurses and effects in the nursing profession. However, there are limited investigations of burnout and compassion fatigue among undergraduate nursing students in South Africa, as nursing students may experience distressful situations during their nursing education course, which may have an impact during their training and in their profession as they graduate. PURPOSE: The purpose of this descriptive study was to describe compassion satisfaction, compassion fatigue and burnout among undergraduate nursing students at a tertiary nursing institution. METHODS: A quantitative descriptive study was conducted to describe compassion satisfaction, compassion fatigue and burnout among undergraduate nursing students at a tertiary nursing institution in KwaZulu-Natal. Convenience sampling was used. RESULTS: Sixty-seven undergraduate students (26 third-year and 41 fourth-year nursing students) took the self-test Professional Quality of Life Scale (ProQOL). The study results indicate that undergraduate students experienced average levels of compassion fatigue, burnout and compassion satisfaction. CONCLUSION: As shown in the study, some of the undergraduate students are experiencing compassion fatigue and burnout, associated with relieving suffering of others. Therefore, knowledge of compassion fatigue and burnout and the coping strategies should be part of nursing training. PMID- 29041783 TI - The lived experiences and social support needs of first-time mothers at health care facilities in the City of Tshwane, South Africa. AB - BACKGROUND: Social support refers to the assistance people receive from others, and it is divided into four types of support. Given the increasing mortality and morbidity rates of mothers and neonates postpartum, this study intended to determine whether the social support needs of the first-time mothers were met after early discharge from health care facilities. OBJECTIVES: The objective of the study was to explore the lived experiences and social support needs of the first-time mothers after an early discharge from health care facilities in the City of Tshwane, Gauteng. METHOD: A qualitative explorative study was conducted to explore the lived experiences and social support needs of the first-time mothers. The population were first-time mothers who had a vaginal delivery and were discharged within 6-12 hours of delivery from health care facilities. Purposive sampling was performed and 14 semi-structured interviews were conducted, with those mothers who came for the prescribed three postnatal check ups at the three health care facilities identified according to maternity services provided. Saturation of data for the three health care facilities was reached at the 14th interview. Data analysis was performed using the hermeneutic interpretive approach. RESULTS: Almost all participants had completed grades 11 or 12, but most were unemployed. The needs identified included the need for social support, lack of confidence, knowledge and skill to care for themselves and their newborn babies after early discharge. CONCLUSION: There is need to identify alternative types of social support for the first-time mothers, to ensure a normal adjustment to motherhood. PMID- 29041785 TI - Professional nurses' lived experiences regarding the performance management system in the Mopani district. AB - BACKGROUND: The purpose of the performance management system (PMS) is planning, monitoring, evaluation and development of employees to meet the organisational goals and objectives and transform of service delivery to excellence of the organisation. However, public services are deteriorating and implementation of PMS stimulated different views among professional nurses (PNs) in the Mopani district clinics, which warrants exploration and documentation of the findings. OBJECTIVE: The objective of this study was to explore and describe the PNs' perceptions towards PMS. METHODS: A qualitative, phenomenological research was conducted to explore and describe the nurses' lived experiences regarding PMS. A purposive sampling method was used. Data collection was done using focus group interviews. Three focus group discussion sessions were conducted, inclusive of six to nine participants in each session. RESULTS: Twenty-two PNs were interviewed. The findings revealed the following themes: PNs' uncertainty regarding the implementation of PMS, poor implementation of PMS and its process, lack of knowledge and understanding of PMS implementation and its process, and negative attitudes towards the implementation of PMS. CONCLUSION: PNs perceived PMS negatively. There is a need to improve leadership and management behaviour by enhancing productivity, job satisfaction and organisational commitment. Constructive feedback, training and capacity development, including standardisation and stabilisation of performance instrument, might improve the process. PMID- 29041786 TI - Census and vaccination coverage of owned dog populations in four resource-limited rural communities, Mpumalanga province, South Africa. AB - Dogs (Canis familiaris) are often free-roaming in sub-Saharan African countries. Rabies virus circulates in many of these populations and presents a public health issue. Mass vaccination of dog populations is the recommended method to decrease the number of dog and human rabies cases. We describe and compare four populations of dogs and their vaccination coverage in four different villages (Hluvukani, Athol, Utah and Dixie) in Bushbuckridge Municipality, Mpumalanga province, South Africa. Cross-sectional surveys were conducted in the villages of Athol, Utah and Dixie, while data from a Health and Demographic Surveillance System were used to describe the dog population in Hluvukani village. All households of the villages were visited to obtain information on the number, sex, age and rabies vaccination status of dogs. From May to October 2013, 2969 households were visited in the four villages and 942 owned dogs were reported. The populations were all young and skewed towards males. No differences were observed in the sex and age distributions (puppies 0-3 months excluded) among the villages. Athol had a higher proportion of dog-owning households than Hluvukani and Utah. Vaccination coverages were all above the 20% - 40% threshold required for herd immunity to rabies (38% in Hluvukani, 51% in Athol, 65% in Dixie and 74% in Utah). For the preparation of vaccination campaigns, we recommend the use of the relatively stable dog:human ratio (between 1:12 and 1:16) to estimate the number of dogs per village in Bushbuckridge Municipality. PMID- 29041787 TI - A comparative analysis of mycotoxin contamination of supermarket and premium brand pelleted dog food in Durban, South Africa. AB - Dry pelleted dog food in the South African market is available via supermarkets, pet stores (standard brands [SBs]) and veterinary channels (premium brands [PBs]). For the purpose of this study, the supermarket channel included the cheaper quality foods and PBs were sold via the veterinary channel (n = 20). These feeds were analysed for four main mycotoxins (aflatoxins [AF], fumonisin [FB], ochratoxin A [OTA] and zearalenone [ZEA]) using standard welldescribed extraction, characterisation and quantitation processes. Irrespective of the brand or marketing channel, all foods were contaminated with fungi (mainly Aspergillus flavus, Aspergillus fumigatus and Aspergillus parasiticus) and mycotoxins (most prevalent being aflatoxins and fumonisins). This was observed in all 20 samples irrespective of the marketing channel or perceived quality. Also, many samples within each marketing channel failed the 10 ppb limit for aflatoxin set by regulations in South Africa. Although fumonisin was detected in all samples, a single sample failed the Food and Drug Administration (FDA) limit of 100 ppb. Both OTA and ZEA were found at low concentrations and were absent in some samples. This study suggested that higher priced dog food does not ensure superior quality or that it is free from contamination with fungi or mycotoxins. However, analysis of the more expensive PBs did reveal contamination concentrations lower than those of the SBs. PMID- 29041788 TI - Use of Brucella abortus species specific polymerase chain reaction assay for the diagnosis of bovine brucellosis. AB - Serology is primarily used in the diagnosis of bovine brucellosis. Bacterial culture and isolation is the gold standard in diagnosing brucellosis but, like serology, it does not offer complete (100%) diagnostic sensitivity and specificity. Polymerase chain reaction (PCR) has been suggested to offer better specificity and sensitivity. In this study, we evaluated the performance of Brucella abortus species specific (BaSS) PCR directly from different samples in the diagnosis of bovine brucellosis in naturally infected cattle in KwaZulu-Natal province of South Africa with known infectious status from culture. The BaSS PCR had a low diagnostic sensitivity (DSe) of 70%, but was able to identify vaccine strains using abomasal fluid from aborted foetuses and detect Brucella DNA from decomposing samples. The best sample for the BaSS PCR was abomasal fluid. PMID- 29041789 TI - Epidemiological studies based on multi-locus sequence typing genotype of methicillin susceptible Staphylococcus aureus isolated from camel's milk. AB - One hundred milk samples were collected from camel's milk for the isolation of Staphylococcus aureus. Thirty-one isolates were S. aureus, 45 were other forms of staphylococci and 24 represented other bacteria. Five isolates from S. aureus were methicillin resistant S. aureus (MRSA) and 26 samples were methicillin susceptible S. aureus (MSSA). The whole genome sequence of S. aureus was annotated and visualised by rapid annotation using subsystem technology (RAST) which is a fully-automated service for annotating complete or nearly complete bacterial genomes. Four isolates from MSSA strains were subjected to multi-locus sequence typing (MLST). Three multilocus sequences types or sequence types (MLST/ST) were found, namely ST15, ST1153 and ST130. The phylogenetic analysis of the concatenated sequences of the seven genes forming the MLST profile of S. aureus classification revealed a high degree of similarity and close relationship between the ST15 and ST1153 while the third ST (ST130) was located in a different cluster. PMID- 29041790 TI - A retrospective study of anthrax on the Ghaap Plateau, Northern Cape province of South Africa, with special reference to the 2007-2008 outbreaks. AB - Anthrax is a zoonotic disease caused by the gram-positive, endospore-forming and soil-borne bacterium Bacillus anthracis. When in spore form, the organism can survive in dormancy in the environment for decades. It is a controlled disease of livestock and wild ungulates in South Africa. In South Africa, the two enzootic regions are the Kruger National Park and the Ghaap Plateau in the Northern Cape province. Farms on the Plateau span thousands of hectares comprising of wildlife livestock mixed use farming. In 2007-2008, anthrax outbreaks in the province led to government officials intervening to aid farmers with control measures aimed at preventing further losses. Because of the ability of the organism to persist in the environment for prolonged periods, an environmental risk or isolation survey was carried out in 2012 to determine the efficacy of control measures employed during the 2007-2008, anthrax outbreaks. No B. anthracis could be isolated from the old carcass sites, even when bone fragments from the carcasses were still clearly evident. This is an indication that the control measures and protocols were apparently successful in stemming the continuity of spore deposits at previously positive carcass sites. PMID- 29041791 TI - Public awareness of audiology, hearing and hearing health in the Limpopo Province, South Africa. AB - BACKGROUND: The burden of hearing loss is on the increase, especially in low income countries such as South Africa. The need for urgent action to prevent ear and hearing problems is a priority, especially as in many cases permanent hearing loss is preventable. In South Africa, as in other developing countries, there is a limited number of hearing health professionals and audiological resources. The lack of hearing health services may impact the general public's awareness of hearing and hearing health. Limited information is available on the South African public's knowledge of audiologists and the services they provide, especially in underserved rural communities. AIM: The aim of this study was to describe individuals' awareness of the audiology profession, hearing and hearing loss, and hearing health in a rural area of the Limpopo Province. METHOD: A cross-sectional survey design was employed for the purpose of this study. Using a random sampling strategy, 297 households in four rural villages were selected and a selfdeveloped questionnaire was administered to one individual (18 years and older) per household. The questionnaire consisted of 23 questions targeting awareness of the audiology profession, as well as knowledge of hearing, hearing loss and hearing health. RESULTS: Only 14% of participants were aware of the audiology profession, indicating that individuals living in rural communities are not aware of the role of audiologists and the services they provide. Doctors and nurses were identified by participants as the individuals who assist them with hearing-related problems. Although most participants (87%) acknowledged that it is very important to undergo a hearing test, only 5% have previously visited an audiologist. Most participants were aware that ear infections and excessive noise exposure can cause hearing loss. The majority also believed that ears must be kept clean at all times and used cotton buds to maintain ear hygiene. CONCLUSION: There is a general lack of public awareness of audiologists and the services they offer. This study highlighted the need for the National Department of Health in collaboration with professional associations and hearing health professionals to develop and implement effective strategies to increase the South African public's awareness of the profession and the services they provide. South African universities can also play a significant role in teaching students to develop context-relevant strategies to increase awareness of the profession. PMID- 29041792 TI - The Besrour Papers: Seeking evidence for family medicine. AB - not available. PMID- 29041793 TI - Twenty years of Primafamed Network in Africa: Looking back at the future. AB - not available. PMID- 29041794 TI - The views of key stakeholders in Zimbabwe on the introduction of postgraduate family medicine training: A qualitative study. AB - BACKGROUND: Strengthening primary health care (PHC) is a priority for all effective health systems, and family physicians are seen as a key member of the PHC team. Zimbabwe has joined a number of African countries that are seriously considering the introduction of postgraduate family medicine training. Implementation of training, however, has not yet happened. AIM: To explore the views of key stakeholders on the introduction of postgraduate family medicine training. SETTING: Key academic, governmental and professional stakeholders in Zimbabwean health and higher education systems. METHOD: Twelve semi-structured interviews were conducted with purposively selected key stakeholders. Data were recorded, transcribed and analysed using the framework method. RESULTS: Anticipated benefits: More effective functioning of PHC and district health services with reduced referrals, improved access to more comprehensive services and improved clinical outcomes. Opportunities: International trend towards family medicine training, government support, availability of a small group of local trainers, need to revise PHC policy. Anticipated barriers: Family medicine is unattractive as a career choice because it is largely unknown to newly qualified doctors and may not be recognised in private sector. There is concern that advocacy is mainly coming from the private sector. Threats: Economic conditions, poor remuneration, lack of funding for resources and new initiatives, resistance from other specialists in private sector. CONCLUSION: Stakeholders anticipated significant benefits from the introduction of family medicine training and identified a number of opportunities that support this, but also recognised the existence of major barriers and threats to successful implementation. PMID- 29041795 TI - Knowledge of type 2 diabetic patients about their condition in Kimpese Hospital diabetic clinic, Democratic Republic of the Congo. AB - BACKGROUND: Diabetes mellitus is a worldwide increasing health problem of which type 2 diabetes is the most prevalent. Previously considered as a problem of industrialised countries, diabetes is currently a huge concern in developing countries and the Democratic Republic of the Congo (DRC) is one of the sub Saharan countries with a high prevalence rate of diabetes. Deficit of knowledge has already been shown to be one of the barriers preventing diabetic patients from controlling their disease. OBJECTIVES: This study aimed to assess the knowledge of type 2 diabetic patients seen at the Institut Medical Evangelique (IME) Kimpese Hospital diabetic clinic, DRC, and the factors associated with their knowledge. METHODS: A cross-sectional study involving 184 respondents was conducted at the diabetic clinic of the IME Kimpese Hospital, DRC. We administered a pre-tested questionnaire. Out of a total of 10, scores of < 5, 5 to < 7, and >= 7 were classified as 'poor knowledge', 'moderate knowledge' and 'good knowledge', respectively, according to expert consensus. All statistical tests were performed using p < 0.05 as the level of statistical significance. RESULTS: The mean age of respondents was 57.5 years (s.d. +/- 1.4, ranging from 40 to 83 years), with 56% being male. The mean diabetes knowledge score was poor: 3.2 out of a total of 10 (s.d. +/- 1.7), with the range between 0.2 and 7.7. The majority of respondents (72.3%) had poor general knowledge about diabetes mellitus. Respondents also scored poorly in areas of the causes (35.6%), risk factors (39.3%), clinical features (34.9%), complications (20.5%) and management (42.4%) of diabetes mellitus. Using the student t-test analysis, it was found that age (p = 0.001), gender (p = 0.002), educational level (p = 0.007) and duration of disease (p = 0.032) were significantly associated with poor knowledge of diabetes mellitus. CONCLUSIONS: Knowledge of diabetes mellitus among type 2 diabetic patients seen at our setting was poor. Areas of deficiency and factors associated with knowledge of diabetes were identified. Our findings suggest the need for a health education intervention programme for our diabetic patients. PMID- 29041796 TI - Prevalence of eye pathology in a group of diabetic patients at National District Hospital Outpatient Department in Bloemfontein, South Africa. AB - BACKGROUND: Diabetic retinopathy is the third most common cause of blindness after cataracts and glaucoma in South Africa. Primary healthcare interventions providing eye care services play an important role in preventing complications. AIM: To determine the prevalence of eye pathology in a group of diabetic patients at National District Hospital by screening for diabetes-associated ocular pathology. SETTING: Outpatients Department run by Department of Family Medicine at National District Hospital in Bloemfontein from June to July 2014. METHODS: Interviews were used to collect information regarding diabetic patients' history of diabetes mellitus and if and when previous diabetic retinopathy screening was performed. Visual acuity was assessed, intra-ocular pressure measured and a non mydriatic digital fundus camera used to screen for retinal pathology. RESULTS: During the last year, only 4.5% of patients had their vision checked with a Snellen chart, and 16.5% were examined with an ophthalmoscope. Since diagnosis of diabetes, only 15.5% of patients were referred to an ophthalmologist. Patient referral was needed for 87 (42.9%) cases for refractive disorders, 37 (18.2%) for suspected glaucoma, 30 (14.8%) for cataracts, and 22 (10.8%) for diabetic retinopathy. CONCLUSION: This study confirms that glaucoma, cataracts and diabetic retinopathy are prevalent eye conditions among diabetic patients. Offering eye screening at primary healthcare level may contribute to early detection of eye pathology and timeous referral for sight-saving treatment. PMID- 29041797 TI - Geographical distribution and profile of medical doctors in public sector hospitals of the Limpopo Province, South Africa. AB - BACKGROUND: The shortage and unequal distribution of medical doctors in low- and middle-income countries continues to be a public health concern. OBJECTIVE: To establish the geographical distribution and demographic profile of medical doctors in public sector hospitals of the Limpopo Province, South Africa. METHOD: The PERSAL system was used to obtain information on the number of medical doctors employed in public sector hospitals of the Limpopo Province. Data were exported from PERSAL's database and then analysed using STATA version 9.0. RESULT: The mean age of the 887 medical doctors was 40.1 +/- 11.2 years (range 24-79 years). Sixty per cent of the doctors were male, 66% were aged <= 45 years and 84% were African. Most of the doctors (86%) were medical officers, of which 55% had < 5 years working experience. Overall, the doctor-to-population ratio for the five districts in the province was 16.4/100 000, with Capricorn (33.7/100 000) and Waterberg (20.2/100 000) recording the highest ratios. A large proportion (43%) of medical officers are employed in the Capricorn District, of which 71% were practising at the tertiary hospital. CONCLUSION: This study demonstrated a shortage and maldistribution of medical doctors in the public sector hospitals of the Limpopo Province. This has a potentially negative effect on the delivery of an appropriate and efficient healthcare service to the population and requires urgent attention. PMID- 29041798 TI - Community perceptions of mental illness in rural Uganda: An analysis of existing challenges facing the Bwindi Mental Health Programme. AB - OBJECTIVES: To assess community perceptions of mental illness in the Bwindi Community Hospital (BCH) catchment area: to recognise beliefs about the causes and the treatments for mental illness. To provide community data to staff at BCH as they work to develop more effective community mental health programmes. BACKGROUND: A shortage of mental health providers in Uganda has prompted research into community-based task-sharing models for the provision of mental health services in underserved communities. METHODS: Six focus group discussions, with a total of 54 community members (50% male, n = 27; mean age + s.d. [39.9 + 10.9 years]) from the BCH catchment area, were conducted to assess community member and stakeholder perceptions of mental illness and belief in the feasibility of community-based programming. Qualitative study of data through thematic analysis was conducted to assess the presence of commonly occurring perceptions. RESULTS: Qualitative thematic analysis revealed two major themes: (1) belief that any given patient's metal illness results from either an intrinsic or an extrinsic cause and (2) belief in a need to determine treatment of mental illness based on the believed cause. CONCLUSION: As BCH designs community-based mental health services, our findings provide support for the need for further education of community members and training of community health workers to address and integrate the above-stated beliefs regarding mental illness. PMID- 29041799 TI - The value of the WIRHE Scholarship Programme in training health professionals for rural areas: Views of participants. AB - INTRODUCTION: Rural hospitals in South Africa, as elsewhere, face enduring shortages of, and challenges in attracting and retaining, suitably qualified staff. The Wits Initiative for Rural Health Education (WIRHE), based at the University of the Witwatersrand but covering three universities, is a rural scholarship programme established to find local solutions to these challenges in the North West and Mpumalanga provinces. The purpose of this evaluation was to ascertain whether the WIRHE project was achieving its objectives. METHODS: This article draws from an evaluation commissioned by the Swiss-South African Cooperative Initiative, a major funder of the programme when WIRHE was launched in 2003. Qualitative interviews were conducted either as face-to-face meetings or telephonically with 21 WIRHE students and graduates. Content analysis was undertaken to identify common themes. RESULTS: There was a consistency in the findings as the students and graduates reported similar experiences. Many of the participants were overwhelmed by their initial challenges of having to adapt to a different language, an institutional culture and resources that they previously did not have access to. The participants acknowledged the role of WIRHE staff in facilitating the transition from home to university and, in particular, the value of the financial and academic support. The geographic distance to Wits presented a challenge for the Pretoria- and Sefako Makgatho-based students. The holiday work affirmed clinical advantages for WIRHE students and heightened students' interest in becoming healthcare workers. CONCLUSION: WIRHE's key success factors are the financial, academic and emotional support offered to students. WIRHE achieved its objectives based on a principled strategic approach and an understanding that students from rural backgrounds are more likely to return to rural areas. The study supports the value of structured support programmes for students of rural origin as they pursue their studies. PMID- 29041800 TI - An exploration of the knowledge, attitudes and beliefs of Xhosa men concerning traditional circumcision. AB - BACKGROUND: The practice of traditional circumcision is associated with considerable morbidity and mortality, yet there is a paucity of literature that provides an understanding of the cultural values that influence men to choose traditional rather than medical circumcision.The aim of this study was to better understand the culture surrounding traditional circumcision, with a view to addressing morbidity and mortality rates associated with the Xhosa male initiation rituals.We explored Xhosa men's perceptions regarding the need for the risks and the social pressure to undergo traditional circumcision, the impact of non-initiation or failed initiation and the perceived barriers to obtaining medical help for the complications of traditional circumcisions. METHODS: Individual in-depth interviews were conducted with 10 purposively sampled teenagers and adult men. The interviews were recorded, translated, transcribed and analysed using the framework method. RESULTS: Traditional circumcision was seen as essential to Xhosa culture. Participants rationalised many reasons for participating, including personal growth and development, family and peer pressure, independence and knowledge gained, a connection with ancestors and initiation into manhood. Despite publicity of the dangers of traditional circumcision and the hardships they have to endure, most young men still saw this process as necessary and worthwhile. CONCLUSION: Traditional initiation and circumcision are here to stay. The majority of boys still trust the elders and supernatural processes to guide them. However, some participants welcomed government initiatives to reduce human error causing unnecessary death and suffering. Current systems to prevent morbidity and mortality are insufficient and should be prioritised. PMID- 29041801 TI - Perceptions of clients on awareness and the geographical location of a South African university sexual health clinic. AB - BACKGROUND: The Campus Health Service at Stellenbosch University has a sub division, a sexual health clinic, which provides sexual health services. The clients of the sexual health clinic consist of staff members and students. AIM: This article reports on the perceptions of clients that relate to awareness and the geographical location of the clinic. SETTING: The Campus Health Service at Stellenbosch University's main campus. METHOD: A descriptive qualitative approach was applied utilising in-depth interviews. A sample of n = 15 was drawn through purposive sampling and data saturation was achieved with the sample. RESULTS: The following themes emerged from the data: location of the clinic, awareness of sexual health services and marketing and advertising. CONCLUSION: The findings of the study revealed that accessibility of the clinic is influenced by the geographical location of the clinic and that marketing and awareness of services require attention. PMID- 29041803 TI - [Articles of the Hungarian Medical Journal from May, 2006]. PMID- 29041804 TI - [Articles of the Hungarian Medical Journal from October, 2006]. PMID- 29041802 TI - Decentralised training for medical students: Towards a South African consensus. AB - INTRODUCTION: Health professions training institutions are challenged to produce greater numbers of graduates who are more relevantly trained to provide quality healthcare. Decentralised training offers opportunities to address these quantity, quality and relevance factors. We wanted to draw together existing expertise in decentralised training for the benefit of all health professionals to develop a model for decentralised training for health professions students. METHOD: An expert panel workshop was held in October 2015 initiating a process to develop a model for decentralised training in South Africa. Presentations on the status quo in decentralised training at all nine medical schools in South Africa were made and 33 delegates engaged in discussing potential models for decentralised training. RESULTS: Five factors were found to be crucial for the success of decentralised training, namely the availability of information and communication technology, longitudinal continuous rotations, a focus on primary care, the alignment of medical schools' mission with decentralised training and responsiveness to student needs. CONCLUSION: The workshop concluded that training institutions should continue to work together towards formulating decentralised training models and that the involvement of all health professions should be ensured. A tripartite approach between the universities, the Department of Health and the relevant local communities is important in decentralised training. Lastly, curricula should place more emphasis on how students learn rather than how they are taught. PMID- 29041805 TI - [Articles of the Hungarian Medical Journal from July, 2006]. PMID- 29041806 TI - [Articles of the Hungarian Medical Journal from September, 2006]. PMID- 29041807 TI - [Articles of the Hungarian Medical Journal from January, 2006]. PMID- 29041808 TI - [Articles of the Hungarian Medical Journal from June, 2006]. PMID- 29041810 TI - [Articles of the Hungarian Medical Journal from April, 2006]. PMID- 29041811 TI - Consecutive loss of two benzyl radicals from the [M + Na]+ adduct ions of pyrogallol tribenzyl ether and its derivatives. AB - The electrospray ionization-collision-induced dissociation mass spectra of nine pyrogallol tribenzyl ethers, 2-10, and a catechol dibenzyl ether, 11, that bear various functional groups or larger structural extensions have been studied with respect to the occurrence of a highly characteristic consecutive loss of two benzyl radicals from the sodiated molecular ions, [M + Na]+. It is shown that this specific fragmentation reaction strongly dominates other fragmentation routes, such as loss of carbon monoxide, formaldehyde and water. In addition, elimination of benzaldehyde occurs as a minor fragmentation channel in most cases. In contrast to these aryl-benzyl ethers, the consecutive two-fold loss of C7H7* is suppressed in the [M + Na]+ ions of dibenzyl ethers derived from multiply benzylated gallocatechin and catechin, where the elimination of benzyl alcohol prevails the primary fragmentation almost completely. The secondary fragmentation of the [M + Na]+ ions, which also comprises the two-fold loss of C7H7*, as well as a remarkable primary fragmentation of a flavene-based congener leading to particularly stable sodium-free chromylium product ions is also presented. ? Deceased. PMID- 29041812 TI - [Articles of the Hungarian Medical Journal from December, 2006]. PMID- 29041813 TI - Regulatory science requirements of labeling of genetically modified food. AB - This paper provides an overview of the evolution of food labeling in the USA. It briefly describes the three phases of agricultural development consisting of naturally occurring, cross-bred, and genetically engineered, edited or modified crops, otherwise known as Genetically Modified Organisms (GMO). It uses the Best Available Regulatory Science (BARS) and Metrics for Evaluation of Regulatory Science Claims (MERSC) to evaluate the scientific validity of claims applicable to GMO and the Best Available Public Information (BAPI) to evaluate the pronouncements by public media and others. Subsequently claims on health risk, ecological risk, consumer choice, and corporate greed are evaluated based on BARS/MERSC and BAPI. The paper concludes by suggesting that labeling of food containing GMO should consider the consumer's choice, such as the food used by those who desire kosher and halal food. Furthermore, the consumer choice is already met by the exclusion of GMO in organic food. PMID- 29041814 TI - [Articles of the Hungarian Medical Journal from November, 2006]. PMID- 29041815 TI - [Articles of the Hungarian Medical Journal from August, 2006]. PMID- 29041816 TI - Enhanced susceptibility to cortical spreading depression in two types of Na+,K+ ATPase alpha2 subunit-deficient mice as a model of familial hemiplegic migraine 2. AB - Background Patients with familial hemiplegic migraine type 2 (FHM2) have a mutated ATP1A2 gene (encoding Na+,K+-ATPase alpha2 subunit) and show prolonged migraine aura. Cortical spreading depression (CSD), which involves mass depolarization of neurons and astrocytes that propagates slowly through the gray matter, is profoundly related to aura. Methods In two types of Atp1a2-defective heterozygous mice, Atp1a2tm1Kwk (C-KO) and Atp1a2tm2Kwk (N-KO), the sensitivity and responsiveness to CSD were examined under urethane anesthesia. Results In both cases, heterozygotes exhibited a low threshold for induction of CSD, faster propagation rate, slower recovery from DC deflection, and profound suppression of the electroencephalogram, compared to wild-type mice. A high dose of KCl elicited repeated CSDs for a longer period, with a tendency for a greater frequency of CSD occurrence in heterozygotes. The difference of every endpoint was slightly greater in N-KO than C-KO. Change of regional cerebral blood flow in response to CSD showed no significant difference. Conclusion Heterozygotes of Atp1a2 defective mice simulating FHM2 demonstrated high susceptibility to CSD rather than cortical vasoreactivity, and these effects may differ depending upon the knockout strategy for the gene disruption. These results suggest that patients with FHM2 may exhibit high susceptibility to CSD, resulting in migraine. PMID- 29041817 TI - Supratentorial lesions contribute to trigeminal neuralgia in multiple sclerosis. AB - Background It has been proposed that multiple sclerosis lesions afflicting the pontine trigeminal afferents contribute to trigeminal neuralgia in multiple sclerosis. So far, there are no imaging studies that have evaluated interactions between supratentorial lesions and trigeminal neuralgia in multiple sclerosis patients. Methods We conducted a retrospective study and sought multiple sclerosis patients with trigeminal neuralgia and controls in a local database. Multiple sclerosis lesions were manually outlined and transformed into stereotaxic space. We determined the lesion overlap and performed a voxel-wise subtraction analysis. Secondly, we conducted a voxel-wise non-parametric analysis using the Liebermeister test. Results From 12,210 multiple sclerosis patient records screened, we identified 41 patients with trigeminal neuralgia. The voxel wise subtraction analysis yielded associations between trigeminal neuralgia and multiple sclerosis lesions in the pontine trigeminal afferents, as well as larger supratentorial lesion clusters in the contralateral insula and hippocampus. The non-parametric statistical analysis using the Liebermeister test yielded similar areas to be associated with multiple sclerosis-related trigeminal neuralgia. Conclusions Our study confirms previous data on associations between multiple sclerosis-related trigeminal neuralgia and pontine lesions, and showed for the first time an association with lesions in the insular region, a region involved in pain processing and endogenous pain modulation. PMID- 29041818 TI - A content analysis of peripheral arterial disease patient-reported outcome measures using the International Classification of Functioning, Disability and Health. AB - BACKGROUND: The purpose of this study was to link, classify and describe the content of peripheral arterial disease (PAD)-specific patient-reported outcome measures using the International Classification of Functioning. The results were then analyzed to determine if these assessments provide clinicians and researchers with a comprehensive understanding of the lived experience of patients with PAD. METHODS: Each meaningful concept in identified PAD assessments was linked to the International Classification of Functioning, Disability and Health to determine included and excluded content areas. An overall perspective was assigned to each assessment item. Inter-rater reliability was established using a kappa statistic. RESULTS: The body functions component is most frequently addressed overall followed by the activities and participation component. International Classification of Functioning chapter and category distribution vary greatly between assessments and no assessment comprehensively examines community participation and relationships. The majority of the assessment items are of the health status-disability and quality of life perspectives. CONCLUSIONS: The results of this study suggest the need for the development of a comprehensive PAD assessment that includes a more even distribution of International Classification of Functioning topics and subtopics. A more comprehensive assessment would better capture the lived experience of this patient population. Implications for Rehabilitation A better understanding of the data collected using the current peripheral arterial disease-specific patient reported outcome measures may contribute to the development of more comprehensive assessment tools that will ultimately lead to improved patient care. This study contributes to the preliminary foundation for the development of a peripheral arterial disease International Classification of Functioning, Disability and Health Core Set. Clinicians and researchers interested in using peripheral arterial disease-specific patient-reported outcome measures for clinical and research purposes can better understand what topics are included and excluded in the collection and what perspectives are addressed. PMID- 29041819 TI - Subjective health complaints and illness perception amongst adults with Joint Hypermobility Syndrome/Ehlers-Danlos Syndrome-HypermobilityType - a cross sectional study. AB - OBJECTIVE: To investigate the prevalence and severity of subjective health complaints and describe illness perception in a population of Joint Hypermobility Syndrome or Ehlers-Danlos Syndrome-Hypermobile Type. METHOD: This study was a postal survey with a questionnaire battery on demographic data, subjective health complaints inventory, and illness perception. A total of 110 individuals diagnosed with Joint Hypermobility Syndrome or Ehlers-Danlos Syndrome-Hypermobile Type from two specialized hospitals in Norway were offered participation. Further, 140 gender- and age-matched healthy controls from statistics Norway representing the general population were sent the questionnaire for reference. RESULTS: Overall response rate was 30.4% (n = 76), with 44.5% (n = 49) in Joint Hypermobility Syndrome/Ehlers-Danlos Syndrome-Hypermobile Type and 19.3% (n = 27) in controls. Subjective health complaints were significantly higher in Joint Hypermobility Syndrome/Ehlers-Danlos Syndrome-Hypermobile Type - than in the controls (32.06 vs. 11.08; p < 0.001). Further the brief illness perception questionnaire indicated that the adults with Joint Hypermobility Syndrome/Ehlers Danlos Syndrome-Hypermobile Type had low understanding of their illness and symptoms (understanding, mean: 3.93, SD 2.88), and reported to have moderate personal and treatment control over their illness. CONCLUSION: Adults with Joint Hypermobility Syndrome/Ehlers-Danlos Syndrome-Hypermobile Type reported higher frequency and severity of subjective health complaints than the matched controls from the general adult population in Norway. Furthermore, Joint Hypermobility Syndrome/Ehlers-Danlos Syndrome-Hypermobile Type reported low understanding of their illness and associated symptoms, and moderate belief that their illness can be kept under control through self-management or treatment. This may indicate one of the reasons why prognosis for these patients is poor. Implications for rehabilitation Awareness of the complexity of the subjective health complaints and inquiry into illness perception could contribute with valuable information about these patients' perceptions of their condition. Such information could in its turn be of value for clinicians as they work towards facilitating a more holistic treatment approach, for example patient education and cognitive behavioural therapy. PMID- 29041821 TI - Gender matters in the transition to employment for young adults with physical disabilities. AB - PURPOSE: The purpose of this study was to explore the role of gender in the transition to employment for young adults with physical disabilities. METHODS: This study drew on in-depth interviews with a purposive sample of 33 participants (23 youth and 10 clinicians). The youth in our sample included 13 females (mean age 22.9) and 10 males (mean age 21.3) who had various types of physical disabilities. The person-environment-occupation (PEO) model informed our analysis. RESULTS: Our research showed several similarities and some differences between young males and females with physical disabilities as they transition to employment and adulthood at the person, environment, and occupational level. At the person level, issues included managing their condition, self-advocacy, and willingness to ask for help. At the environment level, themes focused on parental and social support, accommodations, stigma and discrimination, and transportation challenges. Finally, in the occupation component of the PEO model, we found that males and females with disabilities had different levels of engagement in employment. Although most clinicians commented on gender differences, many reported that they did not tailor their clinical practice accordingly. CONCLUSIONS: Gender sensitive vocational approaches are needed for youth with disabilities as they transition to employment. Implications for rehabilitation Clinicians, educators, and parents should encourage independence and self advocacy skills among youth so that they are prepared to ask for accommodations that they need to succeed in a work environment. Clinicians and educators should present a variety of career and job options to youth, including science, technology, engineering, and math disciplines, an area where youth with disabilities, particularly females, are under-represented. Males may feel less able to self-advocate and seek support and may need additional assistance from clinicians, educators, and parents. Clinicians should tailor their vocational rehabilitation practices to the gender-specific needs of youth with disabilities. Clinicians and parents should ensure that both males and females have the resources and supports they need to be successful in their transition to employment. PMID- 29041820 TI - Applying the ICF linking rules to compare population-based data from different sources: an exemplary analysis of tools used to collect information on disability. AB - BACKGROUND: Data on disability are regularly collected by different institutions or ministries using specific tools for different purposes, for instance to estimate the prevalence of disability or eligibility of specific populations for social benefits. The interoperability of disability data collected in countries is essential for policy making and to monitor the implementation of the Convention on the Rights of Persons with Disabilities. The first objective of this paper is to map and compare tools that collect data on disability for different purposes, more specifically the Brazilian National Health Survey and the Brazilian Functioning Index to the World Health Organization (WHO) and the World Bank Model Disability Survey (MDS), currently recommended as a standard tool for disability measurement. The second objective is to demonstrate the usefulness and value of the International Classification of Functioning, Disability and Health Linking Rules to map and compare population-based surveys and other content-related tools collecting data on disability, even when these have already been developed based on the International Classification of Functioning, Disability and Health. METHODS: Disability information collected with the three different tools was mapped and compared using the International Classification of Functioning, Disability and Health Linking Rules. RESULTS: Although the disability module in the Brazilian National Health Survey is fundamentally different from the MDS, the mapping disclosed that several modules of the Brazilian National Health Survey already cover many aspects necessary to estimate prevalence and understand disability as currently recommended by the WHO and the World Bank. The Brazilian Functioning Index and the MDS are both based on the International Classification of Functioning, Disability and Health and are very similar in the approach and content of their questions on functioning. Specific information on environmental factors is essential to identify needs and barriers, as well as to devise procedures to reduce injustice and inequalities. This information is still not targeted broadly enough in both the Brazilian National Health Survey and the Brazilian Functioning Index. CONCLUSIONS: Overall, this mapping exercise showed that applying the International Classification of Functioning, Disability and Health linking rules to population-based data coming from different sources provides researchers and stakeholders involved in decision making with standardized and straightforward information about overlaps and gaps. Implications for Rehabilitation Data on functioning and disability regularly collected with different purposes and by different institutions or ministries within a country can be compared using the International Classification of Functioning, Disability and Health as a reference framework and the International Classification of Functioning, Disability and Health linking rules. The recently published refinements of the International Classification of Functioning, Disability and Health Linking Rules go beyond the sole linking to International Classification of Functioning, Disability and Health categories and provide standardized procedures to document the perspective of linked questions or the categorization of response options. They are therefore useful to compared tools that have been developed based on the International Classification of Functioning, Disability and Health. The current disability module of the Brazilian Health Survey needs a revision to be suitable to collect data on disability that is Convention on the Rights of Persons with Disabilities conform and guarantees interoperability with disability data from other sources in Brazil, especially from disability assessment for social benefits and implementation of policies. PMID- 29041822 TI - When I do, I become someone: experiences of occupational performance in young adults with cerebral palsy. AB - PURPOSE: Persons with cerebral palsy, even if they have relatively good motor functions, have a lower level of independence and participation in everyday activities than persons of the same age without disabilities. However, there are few descriptions of how persons with cerebral palsy themselves perceive their performance of activities in everyday life. The aim of this study was to describe the perceptions that young adults with cerebral palsy have of occupational performance in everyday life. METHODS: This qualitative interview study includes 10 participants with cerebral palsy classified with Manual Ability Classification System level I-II, aged 19-30 years. The data were analyzed using a phenomenographic approach. RESULTS: The interviews resulted in five categories: "Important to do"; "Demanding but can be facilitated"; "Excludes or includes"; "Diminishes me or makes me grow"; and "Comes at a price". CONCLUSIONS: The young adults with cerebral palsy consider that, despite life being so demanding, it is extremely important to perform activities themselves and to feel included, as this enables personal growth. Hence, it is necessary to advance intervention methods based on personally important activities to enable individuals with cerebral palsy to find their own way to perform activities. Further research is needed to increase opportunities for individuals with cerebral palsy to perform everyday activities without too much fatigue and struggle. Implications for Rehabilitation For young adults with cerebral palsy it is extremely important to perform everyday activities independently; by DOING activities they form their identity. Intervention models aimed to enable persons with cerebral palsy to be involved and find their own way to perform everyday activities should be emphasized. Attention must be paid to how mental fatigue is manifested in persons with cerebral palsy. To build self-awareness and self-efficacy, individuals with cerebral palsy need information, early in life, about cerebral palsy and the multifaceted difficulties the disability might lead to. PMID- 29041823 TI - Therapists' cues influence lower limb muscle activation and kinematics during gait training in subacute stroke. AB - PURPOSE: Symmetrical gait is a key goal of rehabilitation post-stroke. Therapists employ techniques such as verbal instruction and haptic cues to increase activation of paretic muscles. We examined whether verbal or tactile cueing altered spatiotemporal gait parameters, kinematics and electromyography (EMG) of lower limb muscles on the more-affected side within a training session. MATERIALS AND METHODS: Patients (n = 10) were recruited from rehabilitation services (<9 months post-stroke). Tactile (to the hip muscles) or verbal cues were provided on two testing days, 7-10 days apart (randomized order). Gait and angular kinematics were recorded using a Vicon motion capture system and muscle activation using EMG; at baseline (PRE), during the cue, directly afterwards without a cue (POST) and 20 min later without a cue (RETEST). RESULTS: Both verbal and tactile cueing significantly increased muscle activity in paretic muscles but with no immediate effect on step length asymmetry. Tactile cues, more than verbal, temporarily altered gait speed, cadence and time in double support. Verbal cues caused more robust increases in muscle activation of vastus lateralis at weight acceptance and medial gastrocnemius activity from toe off to midswing. CONCLUSIONS: Within a treatment session, tactile cues more effectively altered cadence and double support time while verbal cues more consistently increased vastus lateralis and medial gastrocnemius activity. The effectiveness of these methods in fostering motor relearning in the longer term is an important area for future research. Implications for Rehabilitation Therapist cueing alters muscle activity on hemiparetic side with no effects on symmetry. Tactile cues, more so than verbal cues, increase cadence and reduce time in double support. Verbal cues are more effective at increasing vastus lateralis and plantarflexor muscle activity. PMID- 29041824 TI - A new nanoemulsion formulation improves antileishmanial activity and reduces toxicity of amphotericin B. AB - This work aimed to optimise a new nanoemulsion (NE) formulation loaded with Amphotericin B (AmB) and to evaluate its in vivo antileishmanial activity and in vitro haemolytic toxicity. The influence of gradual increases in pressure, using a high-pressure homogeniser, was evaluated. The NE was characterised for droplet size, polydispersity index, zeta potential and encapsulation efficiency (EE). For antileishmanial activity studies, AmB-NE was administered intravenously in mice infected by Leishmania infantum chagasi, which causes Visceral Leishmaniasis (VL). When the NE was submitted to gradual increases in pressure, the PI values and droplet size decreased. The droplet size (~145 nm) was lower than that obtained in previous studies. The zeta potential was negative and the EE was almost 100%. The haemolytic toxicity, evaluated on human red blood cells, for AmB loaded NE was lower than that observed for the conventional AmB (C-AmB). C-AmB at 2 mg/kg was very toxic. In contrast, administration of the AmB-loaded NE, at same dose, did not result in any sign of acute toxicity, promoting a significant reduction in parasite burden as compared to the C-AmB. These findings suggest that this new AmB-loaded NE constitutes an attractive alternative for the treatment of VL due to improved efficacy and lower toxicity. PMID- 29041825 TI - Cathepsin L deficiency results in reactive oxygen species (ROS) accumulation and vascular cells activation. AB - Recent evidence suggests a link between cathepsin L (CTSL) and vascular diseases. However, its contribution to reactive oxygen species (ROS) homeostasis in the vasculature remains unknown. p66shc is a redox enzyme implicated in mitochondrial ROS generation and translation of oxidative signals. In this study, we explored the relationship between CTSL and oxidative damage in vasculature and whether the oxidative damage is mediated by p66shc.Carotid arteries from aged mice (24 months old) showed a reduction in CTSL expression compared with young wild-type mice (4 months old). Local knockdown of CTSL in carotid arteries of young mice by adenoviral vector encoding the short hairpin RNA targeting CTSL leading to premature vascular aging, as shown by mitochondrial disruption, increased beta galactosidase-positive cells, reduced telomerase activity, and up-regulation of p66shc. Knockdown of CTSL decreased the expression of mitochondrial oxidative phosphorylation (OXPHOS) complexes I, III, and IV, leading to increased mitochondrial ROS and hyperpolarization of the mitochondrial membrane in vitro. Furthermore, knockdown of CTSL also stimulated ROS production and senescence in vascular cells, accompanied by the up-regulation of p66shc.However, p66shc knockdown blunted the alteration in ROS production, and senescence in CTSL knockdown vascular cells. This study suggests that CTSL knockdown partially induces vascular cells damage via increased ROS production and up-regulation of p66shc. PMID- 29041826 TI - Use of acellular pertussis vaccines in the United States: can we do better? AB - INTRODUCTION: Despite robust vaccination schedules and high vaccination rates, many countries, including the U.S., have seen large pertussis outbreaks with a shift in recent years in the distribution of disease burden towards adolescents and young adults. Areas covered: This perspective covers problems related to the increased incidence of pertussis among adolescents. Because the Tdap vaccine only protects against pertussis for 1-2 years after vaccination, we propose a new strategy which aims to optimize the benefit of Tdap in adolescents. Expert commentary: Current pertussis vaccination schedules are based on age and have not been effective at protecting adolescents and teenagers from pertussis outbreaks. An alternative to the current practice would be to take advantage of the cyclical nature of pertussis outbreaks. Rather than immunizing children and adolescent solely based on age regardless of risk of pertussis at that moment, perhaps we should consider a 'timed' Tdap. The goal would be to administer Tdap to susceptible adolescents and young adults during periods when there is a greater risk of being exposed to pertussis. This approach would optimize the use of an effective, but short-lived vaccine by maximizing protection at the time of increased risk. PMID- 29041827 TI - Total dietary sugar consumption does not influence sleep or behaviour in Australian children. AB - This study aimed to compare sugar intake in Australian children with current guidelines and determine if total sugar consumption as a percentage of energy (sugar %E) exacerbates the relationship between sleep and behaviour. A sample of 287 children aged 8-12 years (boys 48.8%, age: 10.7 +/- 1.3 years), and their parents/guardians completed a battery of questionnaires. Children completed a food frequency questionnaire, and parents completed demographic, sleep, and behaviour questionnaires. Average sugar intake was 134.9 +/- 71.7 g per day (sugar %E 26.0 +/- 7.0%), and only 55 (19%) participants did not exceed the recommended sugar intake limit. Correlations and logistical regressions indicated that sugar %E was not associated with sleep or behavioural domains (r range = 0.07-0.08; p range = .173-.979) nor contributed to the prediction of sleep behaviour problems (p range = .16-.80). Whilst a high proportion of children consumed above the recommended amount of daily total sugar, total sugar consumption was not related to behavioural or sleep problems, nor affected the relationship between these variables. PMID- 29041828 TI - Urine protein biomarkers for detection of cardiovascular disease and their use for the clinic. AB - INTRODUCTION: Cardiovascular disease (CVD) is the leading noncommunicable disease and main cause of death worldwide. Traditionally, blood has been the sample of choice for biomarker discovery, however, urine has roused great interest in recent years as a source of biomarkers. Sample collection is simple, non invasive, and there is the possibility of implementing minimal cost tests in primary care settings. Areas covered: In this review, we systematically searched PubMed for proteomic studies of CVD, with the criteria that urine was included as a biological sample. Based on these criteria, and after manual curation, 47 research papers were included: 8 for coronary artery disease, 5 for angina, 15 for myocardial infarction, 23 for heart failure, and 4 for cerebrovascular disease. Expert commentary: Urinary biomarkers of early, asymptomatic stages of the disease would have a great impact on CVD morbidity and mortality, as widespread screening could be implemented at a reduced cost, allowing high-risk individuals to be identified and treated in a timely manner. An approach involving multiple biomarkers is necessary, as a single biomarker is unlikely to be sensitive/specific enough. By assessing a range of peptides there is the potential to detect changes in many pathways involved in the pathogenesis of CVDs. PMID- 29041829 TI - Characteristics and outcome of severe preeclampsia/eclampsia concurrent with or complicated by acute pancreatitis: a report of five cases and literature review. AB - OBJECTIVE: The objective of this study is to determine the rate of acute pancreatitis in preeclampsia/eclampsia patients and describe the clinical manifestations, treatment characteristics and outcome of five cases of severe preeclampsia concurrent with or complicated by acute pancreatitis. METHODS: The clinical data of pregnant women with preexisting or gestational hypertension who sought medical care between January 2002 and December 2015 at the Pregnant Women Critical Care Unit of Chaoyang Hospital, Capital Medical University, Beijing, China were retrieved. The rate of acute pancreatitis in preeclampsia/eclampsia patients was calculated and patients with preeclampsia/eclampsia and acute pancreatitis were included for further analysis. RESULTS: Totally 1703 pregnant women who received medical care at our institution during the review period were diagnosed with hypertension. Four hundred and seven (23.9%) of them had severe preeclampsia. Five (1.2%, 5/407) women with severe preeclampsia developed acute pancreatitis. Their median age was 32 (range 25-35) years and the median duration of gestation was 32 (range 28-40) weeks. Mild acute pancreatitis occurred in three cases, and moderately severe and severe acute pancreatitis in one case each. Four patients underwent cesarean resection and one patient underwent vaginal delivery. Conservative therapy was undertaken. No patient received surgical intervention and cure was achieved in all patients. CONCLUSION: Acute pancreatitis may complicate severe preeclampsia/eclampsia or may be concurrent with severe preeclampsia/eclampsia, complicating and compromising the management of preeclampsia/eclampsia. Physicians should be alert for the presence of acute pancreatitis as prompt diagnosis and treatment, rapid termination of pregnancy and subsequent conservative management of pancreatitis could lead to a general favorable outcome. PMID- 29041830 TI - General outcomes and risk factors for minor and major amputations in Brazil. AB - Objectives Major and minor amputations are associated with significant rates of mortality. However, little is known about the impact of unplanned redo-amputation during the same hospitalization on outcomes. The objectives of this study were to identify the risk factors associated with in-hospital mortality after both major and minor amputations as well as the results of unplanned redo-amputation on outcome. Methods Retrospective study of 342 consecutive patients who were treated with lower extremity amputation in Brazil between January 2013 and October 2014. Results The in-hospital mortality rate was higher in major compared to minor amputation (25.6% vs. 4.1%; p < 0.0001). Whereas chronic kidney disease, chronic obstructive pulmonary disease, and planned staged amputation predicted in hospital mortality after major amputation, age, and congestive heart failure predicted mortality after minor amputation. The white blood cell count predicted in-hospital mortality following both major and minor amputation. However, postoperative infection predicted in-hospital mortality only following major amputation. Conclusions In-hospital mortality was high after major amputations. Unplanned redo-amputation was not a predictor of in-hospital mortality after major or minor amputation. Planned staged amputation was associated with reduced survival after major but not minor amputation. Postoperative infection predicted mortality after major amputation. Systemic diseases and postoperative white blood cell were associated with in-hospital mortality. This study suggests a possible link between a pro-inflammatory state and increased in-hospital mortality following amputation. PMID- 29041831 TI - Postoperative complications after lower extremity arterial bypass increase the risk of new deep venous thrombosis. AB - Background Deep venous thrombosis after any surgical operations is considered a preventable complication. Lower extremity bypass surgery is a commonly performed operation to improve blood flow to lower extremities in patients with severe peripheral arterial disease. Despite advances in endovascular surgery, lower extremity arterial bypass remains the gold standard treatment for severe, symptomatic peripheral arterial disease. The purpose of this study is to identify the clinical risk factors associated with development of deep venous thrombosis after lower extremity bypass surgery. Methods The American College of Surgeons' NSQIP database was utilized and all lower extremity bypass procedures performed in 2013 were examined. Patient and procedural characteristics were evaluated. Univariate and multivariate logistic regression analysis was used to determine independent risk factors for the development of postoperative deep venous thrombosis. Results A total of 2646 patients (65% males and 35% females) underwent lower extremity open revascularization during the year 2013. The following factors were found to be significantly associated with postoperative deep venous thrombosis: transfusion >4 units of packed red blood cells (odds ratio (OR) = 5.21, confidence interval (CI) = 1.29-22.81, p = 0.03), postoperative urinary tract infection (OR = 12.59, CI = 4.12-38.48, p < 0.01), length of hospital stay >28 days (OR = 9.30, CI = 2.79-30.92, p < 0.01), bleeding (OR = 2.93, CI = 1.27-6.73, p = 0.01), deep wound infection (OR = 3.21, CI = 1.37 7.56, p < 0.01), and unplanned reoperation (OR = 4.57, CI = 2.03-10.26, p < 0.01). Of these, multivariable analysis identified the factors independently associated with development of deep venous thrombosis after lower extremity bypass surgery to be unplanned reoperation (OR = 3.57, CI = 1.54-8.30, p < 0.01), reintubation (OR = 8.93, CI = 2.66-29.97, p < 0.01), and urinary tract infection (OR = 7.64, CI = 2.27-25.73, p < 0.01). Presence of all three factors was associated with a 54% incidence of deep venous thrombosis. Conclusions Development of deep venous thrombosis after lower extremity bypass is a serious but infrequent complication. Patients who require unplanned return to the operating room, reintubation, or develop a postoperative urinary tract are at high risk for developing postoperative deep venous thrombosis. Increased monitoring of these patients and ensuring adequate deep venous thrombosis prophylaxis for such patients is suggested. PMID- 29041832 TI - Enhanced vitamin B12 production in an innovative lupin tempeh is due to synergic effects of Rhizopus and Propionibacterium in cofermentation. AB - Fermentation represents a valuable and cost-effective approach for food stabilisation and nutritional improvement. Tempeh is an example of soybean solid state fermentation. In this work, we investigated the possibility of producing a tempeh analogue containing high amounts of vitamin B12 using seeds of three different species of the legume lupin, namely Lupinus albus, L. angustifolius and L. mutabilis, with Rhizopus oligosporus and Propionibacterium freudenreichii cofermentation. Synergic effects of Rhizopus and Propionibacterium in increasing vitamin B12 up to 1230 ng/g dw was observed. These findings indicate that this cofermentation can improve lupin nutritional quality and safety to provide a tempeh analogue with added value for vegan and vegetarian communities and low income populations. The level of potentially toxic lupin alkaloids was also monitored during the tempeh preparation. PMID- 29041833 TI - Healthcare costs in patients with advanced non-small cell lung cancer and disease progression during targeted therapy: a real-world observational study. AB - AIMS: To assess healthcare costs during treatment with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) and following disease progression in patients with advanced non-small cell lung cancer (NSCLC). METHODS: A retrospective analysis of medical records of US community oncology practices was conducted. Eligible patients had advanced NSCLC (stage IIIB/IV) diagnosed between January 1, 2008 and January 1, 2015, initiated treatment with erlotinib or afatinib (first-line or second-line), and had disease progression. Monthly Medicare-paid costs were evaluated during the TKI therapy period and following progression. RESULTS: The study included 364 patients. The total mean monthly cost during TKI therapy was $20,106 (95% confidence interval [CI] = $16,836-$23,376), of which 47.0% and 42.4% represented hospitalization costs and anti-cancer therapy costs, respectively. Following progression on TKI therapy (data available for 316 patients), total mean monthly cost was $19,274 (95% CI = $15,329-$23,218), and was higher in the 76.3% of patients who received anti cancer therapy following progression than in the 23.7% of those who did not ($20,490 vs $15,364; p < .001). Among patients who received it, anti-cancer therapy ($11,198; 95% CI = $7,102-$15,295) represented 54.7% of total mean monthly cost. Among patients who did not receive anti-cancer therapy, hospitalization ($13,829; 95% CI = $4,922-$22,736) represented 90.0% of total mean monthly cost. Impaired performance status and brain metastases were significant predictors of increased cost during TKI therapy. LIMITATIONS: The study design may limit the generalizability of findings. CONCLUSIONS: Healthcare costs during TKI treatment and following progression appeared to be similar and were largely attributed to hospitalization and anti-cancer therapy. Notably, almost one-quarter of patients did not receive anti-cancer therapy following progression, potentially indicating an unmet need; hospitalization was the largest cost contributor for these patients. Additional effective targeted therapies are needed that could prolong progression-free survival, leading to fewer hospitalizations for EGFR mutation-positive patients. PMID- 29041834 TI - Quality assessment of the detailed anomaly ultrasound scan. AB - OBJECTIVES: The objective of this study is to assess the quality of the views in the detailed anomaly ultrasound scan and examine the parameters that influence it. METHODS: Prospective study on singleton pregnancies examined at 20-24 weeks. Detailed views of all fetal organs were classified by the examiner as optimal/suboptimal. The duration of the examination was observed. Maternal characteristics, Fat Index (FI) (distance between the skin and the surface of the uterus), and fetal position were recorded. RESULTS: The study population consisted of 940 singleton pregnancies. Optimal visualization of all fetal structures was achieved in 66% of cases. Significant predictors were BMI, FI, and fetal position. None of the women with BMI >= 44 and none of the women with FI >= 60 mm had optimal visualization of all fetal structures. Median duration of the examination was 23 min. In 75% of cases, it was completed in the first attempt. Maternal weight, FI, and fetal position were the significant independent predictors of total examination time. CONCLUSIONS: Optimal visualization of the fetal anatomy is restricted by maternal parameters and fetal position. The main limitation is accumulation of abdominal fat, usually but not always related to maternal obesity. The FI may be recorded as a measure of technical difficulty. The anomaly scan should be allocated at least 30 min scanning time. PMID- 29041835 TI - Assessment of executive function in ADHD adolescents: contribution of performance tests and rating scales. AB - This study aimed to analyze performance on measures of neuropsychological and behavioral executive functions (EF) in adolescents with attention deficit hyperactivity disorder (ADHD), and to evaluate the utility of performance-based tests for predicting scores on behavioral EF ratings. One hundred eighteen adolescents (75 ADHD and 43 controls) aged 12-16 years performed neuropsychological tests and completed a behavior rating scale of EF. The ADHD group presented significantly lower scores than controls on Full Scale IQ (FSIQ) and all indexes of the WISC-IV, except the verbal comprehension index (VCI). The ADHD group had significantly lower scores on performance-based tests of working memory, planning and inhibition, and on EF rating scales. Scores on the cognitive EF working memory, planning and flexibility modestly predicted performance on behavioral EF. The results suggest that the combined use of performance-based tests and rating scales provides valuable complementary information that can improve the assessment of executive domains in ADHD. PMID- 29041836 TI - Influence of visual clutter on the effect of navigated safety inspection: a case study on elevator installation. AB - INTRODUCTION: Navigated safety inspection based on task-specific checklists can increase the hazard detection rate, theoretically with interference from scene complexity. Visual clutter, a proxy of scene complexity, can theoretically impair visual search performance, but its impact on the effect of safety inspection performance remains to be explored for the optimization of navigated inspection. This research aims to explore whether the relationship between working memory and hazard detection rate is moderated by visual clutter. METHODS: Based on a perceptive model of hazard detection, we: (a) developed a mathematical influence model for construction hazard detection; (b) designed an experiment to observe the performance of hazard detection rate with adjusted working memory under different levels of visual clutter, while using an eye-tracking device to observe participants' visual search processes; (c) utilized logistic regression to analyze the developed model under various visual clutter. CONCLUSION: The effect of a strengthened working memory on the detection rate through increased search efficiency is more apparent in high visual clutter. This study confirms the role of visual clutter in construction-navigated inspections, thus serving as a foundation for the optimization of inspection planning. PMID- 29041837 TI - Infective keratitis in Indian patients with corneal dystrophies. AB - All eight patients seen with various types of corneal dystrophy, a rare hereditary corneal disease, presented with infective keratitis. Unilateral microbial invasion was seen in all patients and the visual acuity of the affected eyes was <6/60 at presentation. We highlight our impression that microbial invasion can occur with all types of epithelial and stromal corneal dystrophy, including macular corneal dystrophy. Regular follow-up to maintain a healthy ocular surface is recommended to avert blindness in such patients. PMID- 29041838 TI - Psychodermatology liaison clinic in India: a working model. AB - Literature reports suggest that up to 30% of dermatology patients have associated psychiatric co-morbidity. A psychodermatology liaison (PD) clinic is essential to deal with such patients, which is almost non-existent in the Indian scenario. In order to report the working pattern of such a clinic and to determine its efficacy with the help of Dermatology Life Quality Index (DLQI) and Short Assessment of Patient Satisfaction (SAPS) questionnaires, we investigated patients with suspected psychocutaneous diseases in an open-labelled two-year prospective study. Of 236 patients, 86 had psychiatric co-morbidity, 19 had primary psychiatric disorders, 144 were advised psychological interventions and 98 were prescribed psychotropics. A statistically significant fall in DLQI scores at follow-up indicated improvement in quality of life. SAPS scales demonstrated 87.3% of patients in our PD clinic were satisfied with their management in contrast to 53.8% patients in the normal standard dermatology clinic. Nearly 33% of the patients attending our PD clinic had psychiatric co-morbidity, the commonest being an adjustment disorder. PMID- 29041839 TI - Imitation-tumor targeting based on continuous-wave near-infrared tomography. AB - Continuous-wave Near-Infrared (NIR) optical spectroscopy has shown great diagnostic capability in the early tumor detection with advantages of low-cost, portable, non-invasive, and non-radiative. In this paper, Modified Lambert-Beer Theory is deployed to address the low-resolution issues of the NIR technique and to design the tumor detecting and imaging system. Considering that tumor tissues have features such as high blood flow and hypoxia, the proposed technique can detect the location, size, and other information of the tumor tissues by comparing the absorbance between pathological and normal tissues. Finally, the tumor tissues can be imaged through tomographic method. The simulation experiments prove that the proposed technique and designed system can efficiently detect the tumor tissues, achieving imaging precision within 1 mm. The work of the paper has shown great potential in the diagnosis of tumor close to body surface. PMID- 29041840 TI - Identification of novel scaffolds to inhibit human mitotic kinesin Eg5 targeting the second allosteric binding site using in silico methods. AB - Human mitotic kinesins are potential anticancer drug targets because of their essential role in mitotic cell division. The kinesin Eg5 (Kinesin-5, kif11) has gained much attention in this regard and has many inhibitors in different phases of clinical trials. All drug candidates considered for Eg5 so far binds to the binding site (Site 1) formed by the loop L5, helices alpha2 and alpha3 and are uncompetitive to ATP/ADP. Recently, it has been reported that Eg5 also has a second binding site (Site 2) formed by helices alpha4 and alpha6. In the current work, we have screened the compounds in the diversity set-III from National Cancer Institute (NCI) and Zinc database to identify potential inhibitors for Eg5 that specifically binds to the site 2. The compounds were ranked based on the glide extra precision docking scores and the top ranked compounds were found to have pyridazine scaffold. The top five compounds were further evaluated for other drug like properties. Stability of protein-ligand complexes were analyzed using molecular dynamic simulations. Our studies suggest that pyridazine analogs have good MDCK, permeability properties and high binding affinity to the human Eg5. PMID- 29041841 TI - Effect of home telehealth care on blood pressure control: A public healthcare centre model. AB - Objective This study aimed to evaluate the effectiveness of home telehealth care combined with case management by public health nurses, in improving blood pressure control in patients with hypertension. Methods This cohort study examined the data of patients with hypertension obtained from a telehealth service centre database, between July 2011- June 2012. Eligible patients were adults (>=40 years old) with both prehypertension and hypertension, living alone or in the remote suburbs of metropolitan areas. Demographic data were collected from 12 district public health centre in Taipei, Taiwan. Following enrolment, patients received an appropriate and validated home telehealth device kit for automatic blood pressure monitoring and automated modem via a telephone line or a desktop computer with Internet connection to enable data transmission between the patient's home and telehealth service centre. Patients were instructed to upload the measured data immediately every day. The study outcomes included blood pressure and home telehealth service utilisation. Results Of the 432 patients recruited, 408 (94%) completed data collection. Linear regression analysis found an average 22.1 mm Hg reduction in systolic blood pressure after one year. The mean slope of systolic blood pressure was classified as decreased or non decreased. An systolic blood pressure decreasing trend was observed in 52.2% patients, while 47.8% patients showed an increasing systolic blood pressure trend. Patients in the decreased systolic blood pressure group tended to be older ( p = 0. 0001), with a greater proportion of hypertension alarms ( p = 0. 001), improved self-blood pressure monitoring behaviour ( p = 0.009) and higher self measured blood pressure monitoring frequency ( p = 0. 010). Patients in the decreased systolic blood pressure group had a higher self-measured blood pressure monitoring frequency (odds ratio = 0.95, 95% confidence interval, 0.91-0.99, p = 0. 013) than their counterparts. Conclusions Home telehealth care combined with care management by public health nurses based in public health care centre was feasible and effective for improving blood pressure control among patients with hypertension. Further studies should conduct a thorough analysis of the cost effectiveness of this intervention. A randomised controlled trial with a longer follow-up period is required to examine the effects of the improved home telehealth device kit on the care of patients with hypertension. PMID- 29041843 TI - Embryo transfer is a risk factor for severe postpartum hemorrhage and blood transfusion requirement. AB - PURPOSE: This study aimed to investigate the risk factors for severe postpartum hemorrhage (PPH) and blood transfusion requirement that are recognizable during any period of pregnancy. MATERIALS AND METHODS: We retrospectively reviewed the medical data of 4829 pregnant women who received care and delivered at our institution between July 2010 and March 2015. The cohort was divided into patients with and without severe PPH. Multivariate logistic regression analysis was performed to assess risk factors associated with severe PPH. The same analysis was repeated for blood transfusion requirement. RESULTS: A total of 127 (2.7%) patients had severe PPH and 43 (0.87%) required blood transfusion. The multivariate logistic regression analysis demonstrated that embryo transfer (odds ratio [OR] 2.6; p < .001), uterine myoma (OR 2.0; p < .01), prior uterine surgery (OR 1.9; p = .03), prior cesarean section (OR 1.8; p = .01), and maternal age (OR 1.5; p = .03) were independent risk factors for severe PPH. Embryo transfer was an independent risk factor for blood transfusion requirement (OR 3.1, p < .001). CONCLUSIONS: Embryo transfer is a risk factor for both severe postpartum hemorrhage and blood transfusion requirement. PMID- 29041842 TI - Identifying novel small molecule antagonists for mLST8 protein using computational approaches. AB - Mammalian lethal with SEC13 protein 8 (mLST8), is an indispensable protein subunit of mammalian target of rapamycin (mTOR) signaling pathway that interacts with the kinase domain of mTOR protein, thereby stabilizing its active site. Experimental studies reported the over expression of mLST8 in human colon and prostate cancers by activation of both mTORC1/2 complexes and subsequent downstream substrates leading to tumor progression. Considering its role, targeting mLST8 protein would be a therapeutic approach against tumor progression in colon and prostate cancers. Hence, using in silico structure based drug design approach, the comparative binding patterns of 1,1'-binapthyl-2,2'diol (BINOL), 1 (2-carboxynaphth-1yl)-2-naphthoic acid (SCF-12) and their analogs in the cavity of mLST8 were explored. ADME and binding energy calculations led to the identification of five compounds with favorable Glide (G) scores and implicated the importance of Asn132 and Gln225 as key binding residues. Molecular dynamics (MD) simulations and free energy landscape (FEL) approaches helped in elucidating the binding mechanism and suggested the possibility of ligands 1-3 namely, ZINC01765622, ZINC62723702 and ZINC02576980 to be promising antagonists for mLST8. Thus, this study substantiates the prospect of targeting mLST8 protein using potent hits which could hinder tumor progression in colon and prostate cancers. PMID- 29041844 TI - Reduced expression of NR4A1 activates glycolytic pathway in acute promyelocytic leukemia cells. PMID- 29041845 TI - Relationship between oxidative stress and erectile function. AB - The aim of this study was to investigate markers of inflammation and oxidative stress in the corpus cavernosum (CC) and to compare levels of inflammatory markers recorded in CC to venous blood from the arm to examine the potential impact of inflammatory parameters on erectile function and endothelial dysfunction in vitro. Ninety-seven patients with no complaint of erectile dysfunction (ED) at inclusion were prospectively included and completed the Erectile Function domain of the IIEF questionnaire. Several parameters, including lipids, MPO-dependent oxidised LDL (Mox-LDL), IL-8, IL-18, were measured. After RNA extraction, the expression of eNOS was analysed. A paired t-test was used for comparisons between arm and CC blood results. A two-way ANOVA was used to estimate the effects of IL-18 and IL-8 on the IIEF score. Mean patient age was 59 +/- 14.5 years. IL-18, Mox-LDL, and Mox-LDL/ApoB levels were significantly increased in CC compared to arm blood. The IIEF score was correlated with IL-18 levels in the venous blood (R = -0.31, p = .003) and in the CC (R = -0.37, p = .004) and with IL-8 (R = -0.31, p = .009 and R = -0.28, respectively, p = .02). There was a significant effect with the IL-18 on IIEF potentiated by high serum IL-8 concentrations. IL-18 and Mox-LDL significantly decreased eNOS mRNA expression in human aortic endothelial cell line (HAEC). These preliminary results address the importance of inflammation in the CC and highlight a difference in marker concentrations between venous and CC blood. However, they do not show any difference in terms of clinical erectile score predictivity. Involvement of inflammatory cytokines isolated in CC in the genesis of ED requires further studies. PMID- 29041847 TI - ? PMID- 29041846 TI - ? PMID- 29041848 TI - ? PMID- 29041850 TI - ? PMID- 29041849 TI - ? PMID- 29041852 TI - ? PMID- 29041851 TI - ? PMID- 29041853 TI - ? PMID- 29041854 TI - ? PMID- 29041855 TI - ? PMID- 29041857 TI - ? PMID- 29041856 TI - ? PMID- 29041858 TI - ? PMID- 29041859 TI - ? PMID- 29041860 TI - Maternal behavior of the mouse dam toward pups: implications for maternal separation model of early life stress. AB - Maternal care is essential for an adequate pup development, as well as for the health of the dam. Exposure to stress in early stages of life can disrupt this dam-pup relationship promoting altered neurobiological and behavioral phenotypes. However, there is a lack of consensus regarding the effects of daily maternal separation (MS) on the pattern of maternal behavior. The aim of this study is to compare the patterns of maternal behavior between mice exposed to MS and controls. BALB/c mice were subjected to MS for a period of 180 min/day from postnatal day 2-7 (n = 17) or designated to be standard animal facility reared (AFR) controls (n = 19). Maternal behaviors were computed as frequency of nursing, licking pups and contact with pups, and nonmaternal behaviors were computed as frequency of actions without interaction with pups and eating/drinking. A total of 18 daily observations of maternal behavior were conducted during these six days, and considering the proportion of maternal and nonmaternal behaviors, an index was calculated. There was no difference when comparing the global index of maternal behavior between the AFR and MS animals by the end of the observed period. However, the pattern of maternal behavior between groups was significantly different. While MS dams presented low frequency of maternal behavior within the first couple days of the stress protocol, but increasing over time, AFR dams showed higher maternal behavior at the beginning, reducing over time. Together, our results indicate that MS alters the maternal behavior of the dams toward pups throughout the first week of the stress protocol and provoked some anxiety-related traits in the dams. The inversion of maternal behavior pattern could possibly be an attempt to compensate the low levels of maternal care observed in the first days of MS. PMID- 29041861 TI - In vitro evaluation of aerosol delivery of aztreonam lysine (AZLI): an adult mechanical ventilation model. AB - BACKGROUND: The delivery profile of Aztreonam lysine (AZLI) during mechanical ventilation (MV) is unknown. We evaluated the amount of AZLI drug delivered using an in vitro model of adult MV. METHODS: An adult lung model designed to mimic current clinical practice was used. Both nebulizers were placed before a Y-piece and 4 settings were tested: A) Aeroneb solo(r) [AS] with a t-piece; B) AS with the spacer; C) M-Neb(r) [MN] with a t-piece and D) MN with the spacer. Performance was evaluated in terms of: 1) Mass median aerodynamic diameter (MMAD); 2) Geometric standard deviation (GSD), 3) Fine particle dose (FPD), 4) Fine particle fraction (FPF), 5) Inhalable mass (IM), and 6) Recovery rate (RR). RESULTS: Both devices showed an adequate delivery of AZLI during MV, with MMAD between 2.4-2.5 um and 87% of FPF. The FPD (38.8 and 31.7), IM (44.8 and 36.1) and RR (30 and 24) were similar for AS and MN respectively. Nebulizer aerosol delivery increased (50 and 70% respectively) for both nebulizers when using the spacer. CONCLUSION: Both AS and MN showed a good aerosol delivery profile for AZLI during in vitro mechanical ventilation. Better aerosol delivery performance was obtained using the spacer. PMID- 29041862 TI - Impact of chronic maternal stress during early gestation on maternal-fetal stress transfer and fetal stress sensitivity in sheep. AB - Acute stress-induced reduction of uterine blood flow (UBF) is an indirect mechanism of maternal-fetal stress transfer during late gestation. Effects of chronic psychosocial maternal stress (CMS) during early gestation, as may be experienced by many working women, on this stress signaling mechanism are unclear. We hypothesized that CMS in sheep during early gestation augments later acute stress-induced decreases of UBF, and aggravates the fetal hormonal, cardiovascular, and metabolic stress responses during later development. Six pregnant ewes underwent repeated isolation stress (CMS) between 30 and 100 days of gestation (dGA, term: 150 dGA) and seven pregnant ewes served as controls. At 110 dGA, ewes were chronically instrumented and underwent acute isolation stress. The acute stress decreased UBF by 19% in both the CMS and control groups (p < .05), but this was prolonged in CMS versus control ewes (74 vs. 30 min, p < .05). CMS increased fetal circulating baseline and stress-induced cortisol and norepinephrine concentrations indicating a hyperactive hypothalamus-pituitary adrenal (HPA)-axis and sympathetic-adrenal-medullary system. Increased fetal norepinephrine is endogenous as maternal catecholamines do not cross the placenta. Cortisol in the control but not in the CMS fetuses was correlated with maternal cortisol blood concentrations; these findings indicate: (1) no increased maternal-fetal cortisol transfer with CMS, (2) cortisol production in CMS fetuses when the HPA-axis is normally inactive, due to early maturation of the fetal HPA axis. CMS fetuses were better oxygenated, without shift towards acidosis compared to the controls, potentially reflecting adaptation to repeated stress. Hence, CMS enhances maternal-fetal stress transfer by prolonged reduction in UBF and increased fetal HPA responsiveness. PMID- 29041863 TI - Clinical outcome measures for progressive MS trials. AB - Treatment options for progressive multiple sclerosis remain the main unmet need of the field. As the understanding of multiple sclerosis (MS) pathogenesis improves, new pathways and molecules will be tested for potential reparative, remyelinating, or neuroprotective effects. The clinical outcomes used will determine successful demonstration of beneficial treatment effects to regulatory agencies, clinicians, and persons with MS. This review focuses on clinical outcome measures including the Expanded Disability Status Scale, Multiple Sclerosis Functional Composite, and novel composite measures of disability. The paper also covers cognitive outcomes and screening tests for use in clinical trials. The growing importance of patient-reported outcomes and their suitability for clinical trials is also presented. The review aims to create consensus in regard to these topics and suggestions for future research. PMID- 29041864 TI - Targets of therapy in progressive MS. AB - Highly effective anti-inflammatory therapies have so far been developed for patients with relapsing/remitting multiple sclerosis, which also show some benefits in the early progressive stage of the disease. However, treatment options for patients, who have entered the progressive phase, are still limited. Disease starts as an inflammatory process, which induces focal demyelinating lesions in the gray and white matter. This stage of the disease dominates in the relapsing phase, extends into the early stages of progressive disease, and can be targeted by current anti-inflammatory treatments. In parallel, inflammation accumulates behind a closed or repaired blood brain barrier, and this process peaks in the late relapsing and early progressive stage and then declines. Some data suggest that this process may be targeted by immune ablation and hematopoietic stem cell transplantation. In the late stage, inflammation may decline to levels seen in age-matched controls, but age and disease burden related neurodegeneration ensues. Such neurodegeneration affects the damaged brain and spinal cord, in which functional reserve capacity is exhausted, giving rise to further disability progression. Anti-inflammatory treatments are unlikely to be beneficial in this stage of the disease, but neuroprotective and repair inducing strategies may still be effective. PMID- 29041866 TI - 'Progressive MS - macro views': The need for novel clinical trial paradigms to enable drug development for progressive MS. AB - This article outlines the principal challenges to establish a standard phase-2 approach for progressive multiple sclerosis (PMS) and presents referring strategies to accelerate the registration process via a guidance approved by regulatory agencies. Accordingly, the contribution of 'big datasets' for a better understanding of the natural history of primary-progressive multiple sclerosis (PPMS) and secondary-progressive multiple sclerosis (SPMS) and of their prognostic factors and the value of novel biomarkers are discussed. The establishment of new industry-academic initiatives, such as independent consortia under the umbrella of Progressive MS Alliance (PMSA), with the endorsement of MS organizations and Scientific Societies (e.g. European Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS)) may be crucial to overcome some of the current challenges. Within this frame, the continuous interaction with regulatory agencies is instrumental for the formal validation of the many developments suitable to improve clinical trialling in PMS. PMID- 29041867 TI - Patient selection for trials. AB - The last several decades have witnessed considerable progress in our understanding of the pathogenesis, refining diagnostic criteria, and identifying therapies of value for modifying the course of relapsing forms of multiple sclerosis. While the pace of progress has lagged for those with progressive phase disease, this now seems to be changing. This review considers those characteristics of patients with primary progressive multiple sclerosis that may contribute to phase 3 trial success and identifies some of the thorny issues that remain ahead. The larger of the studies conducted thus far have sequentially informed our understanding of "pure" primary progressive disease, and also challenge both phase 3 and especially phase 2 trial designs and participant selection for investigations going forward. This may have particular relevance for testing therapeutics directed at neuroprotection and repair in the face of ongoing progression regardless of trial participant categorization using current conventional disease phenotypes. PMID- 29041865 TI - Imaging outcome measures for progressive multiple sclerosis trials. AB - Imaging markers that are reliable, reproducible and sensitive to neurodegenerative changes in progressive multiple sclerosis (MS) can enhance the development of new medications with a neuroprotective mode-of-action. Accordingly, in recent years, a considerable number of imaging biomarkers have been included in phase 2 and 3 clinical trials in primary and secondary progressive MS. Brain lesion count and volume are markers of inflammation and demyelination and are important outcomes even in progressive MS trials. Brain and, more recently, spinal cord atrophy are gaining relevance, considering their strong association with disability accrual; ongoing improvements in analysis methods will enhance their applicability in clinical trials, especially for cord atrophy. Advanced magnetic resonance imaging (MRI) techniques (e.g. magnetization transfer ratio (MTR), diffusion tensor imaging (DTI), spectroscopy) have been included in few trials so far and hold promise for the future, as they can reflect specific pathological changes targeted by neuroprotective treatments. Position emission tomography (PET) and optical coherence tomography have yet to be included. Applications, limitations and future perspectives of these techniques in clinical trials in progressive MS are discussed, with emphasis on measurement sensitivity, reliability and sample size calculation. PMID- 29041868 TI - The evolving role of people with MS in clinical research-Some progress but more is needed. AB - People with multiple sclerosis (MS) have been participants in clinical trials over many years, enabling the development and approval of many treatments for relapsing-remitting MS. Today, people with MS expect to be active collaborators in clinical trials and throughout the research and development process. Researchers and clinicians can benefit from including people with MS in all aspects of research and trials, and are urged to do so, so that we can move forward more quickly in developing needed treatments for progressive MS. PMID- 29041869 TI - Advancing trial design in progressive multiple sclerosis. PMID- 29041870 TI - Fluid biomarker and electrophysiological outcome measures for progressive MS trials. AB - Progressive multiple sclerosis (MS) is characterized by insidious clinical worsening that is difficult to accurately quantify and predict. Biofluid markers and electrophysiological measures are potential candidate outcome measures in clinical trials, allowing the quantification of nervous damage occurring in the disease. Neurofilaments are highly specific neuronal proteins. They may have come closest to such applications by their higher concentrations repeatedly demonstrated in cerebrospinal fluid (CSF) in all stages of MS, during relapses, their responsiveness to disease-modifying treatments in relapsing and progressive MS and their associations with measures of inflammatory and degenerative magnetic resonance imaging (MRI) outcomes. Digital single-molecule array (Simoa) technology improves accuracy of bioassays in the quantification of neurofilament light chain (NfL) in serum and plasma. NfL seems to mark a common final path of neuroaxonal injury independent of specific causal pathways. CSF and blood levels of NfL are highly correlated across various diseases including MS, suggesting that blood measurements may be useful in assessing response to treatment and predicting future disease activity. Other biomarkers like matrix metalloproteinases, chemokines, or neurotrophic factors have not been studied to a similar extent. Such measures, especially in blood, need further validation to enter the trial arena or clinical practice. The broadening armamentarium of highly sensitive assay technologies in the future may shed even more light on patient heterogeneity and mechanisms leading to disability in MS. Evoked potentials (EPs) are used in clinical practice to measure central conduction of central sensorimotor pathways. They correlate with and predict the severity of clinical involvement of their corresponding function. Their validation for use in multicenter studies is still lacking, with the exception of visual EPs. If further validated, EPs and fluid biomarkers would represent useful outcome measures for clinical trials, being related to specific mechanisms of the ongoing pathologic changes. PMID- 29041871 TI - Advancing trial design in progressive multiple sclerosis. AB - The failure of a majority of clinical trials in progressive multiple sclerosis (MS) has highlighted the need to reconsider how these trials are designed and conducted, and many areas deserve focus. Basic scientists are reconceptualising the pathophysiology of progressive MS into three broad areas: systemic inflammation, compartmentalized inflammation and non-inflammatory neurodegeneration, with the latter two becoming predominant as the disease progresses. This framework will guide the choice of experimental therapies. Previous clinical trials have highlighted how participant selection can have a significant impact on study outcome. Phase 2 biomarkers which are biologically stable, dynamically changing over time, and easy to assess in multi-centre studies are greatly needed. Shortcomings inherent in the Expanded Disability Status Scale are prompting the development and validation of better clinical measures. The standard two-arm, fixed-duration trial paradigm has been challenged with new, innovative approaches that can test more therapies efficiently. International collaboratives such as the Progressive MS Alliance will support increased dialogue with regulators, industry and other funding agencies. Better engagement with people living with progressive MS will transform them from simply being the recipient of MS therapies to partners in the search for new treatments. Focused, targeted action will drive further development of effective therapies for progressive MS. PMID- 29041872 TI - Progressive MS trials: Lessons learned. AB - Up to very recently, no treatments had proved effective in progressive multiple sclerosis (MS). In 2016, four drugs, two tested in phase 3 and two in phase 2 trials, showed a beneficial effect in primary or secondary progressive MS. Although this could indicate a turning point in progressive MS treatment, most of these successes have been modest and mainly restricted to patients with active inflammation, in the context of trials with powerful anti-inflammatory agents. This paper summarises these reasons, particularly focusing on the main lessons learned for the design of future trials. First, a drug's mechanism of action should tackle the specific pathogenic mechanisms that characterise progressive MS. Second, trial populations where new drugs are to be tested should be carefully chosen, possibly including younger patients with shorter disease durations, which have greater chances of showing active deterioration during the trial, therefore increasing the power to detect treatment effects. Third, outcome measures used in future phase 2 and phase 3 trials should be highly sensitive and be accompanied by smart trial designs. PMID- 29041873 TI - Clinical trial design for progressive MS trials. AB - The design of clinical trials is a key aspect to maximizing the possibility to detect a treatment effect. This fact is particularly challenging in progressive multiple sclerosis (PMS) studies due to the uncertainty about the right target and/or outcome in phase-2 studies. The aim of this review is to evaluate the current challenges facing the design of clinical trials for PMS. The selection of patients, the instrumental and clinical outcomes that can be used in PMS trials, and issues in their design will be covered in this report. PMID- 29041874 TI - Editorial: New Experimental and Computational Tools for Drug Discovery: From Chemistry to Biology. Part-II. PMID- 29041875 TI - [Myocardial Perfusion Imaging Modalities: What do we Really see?] AB - Assessment of perfusion, severity of ischemia and the volume of viable myocardium, including single-photon or positron emission tomography (SPECT and PET) is one of the most important stages of examination of patients with ischemic heart disease. However, in recent years "perfusion" prefix was added to other cardiologic modalities (echocardiography, magnetic resonance and computed tomography). Such a terminological uncertainty leads cardiologists to an erroneous evaluation of real possibilities of these methods. The review clarifies the definitions of terms "perfusion", "ischemia", and "viability" of the myocardium. Imaging modalities are compared from the perspective of compliance with the kinetics of the indicators used and actually visualized myocardial processes. PMID- 29041876 TI - [Stress Echocardiography in the Assessment of Long-Term Outcomes After Percutaneous Coronary Intervention in Patients With Stable Coronary Heart Disease]. AB - AIM: To study the possibilities of stress echocardiography (EchoCG) in the assessment of clinical state of patients after percutaneous coronary intervention (PCI). MATERIAL AND METHODS: We included into this study 80 patients with stable ischemic heart disease. After preliminary examination, all patients underwent PCI. Stress EchoCG was carried out in 6 and 12 months after PCI. RESULTS: Clinical effect assessed in 12 months after revascularization was good in 90% of patients. We registered significant increase of exercise capacity (from 97 to 118 W; p=0.001), increase of double product (from 232 to 275; p=0.009), decrease of myocardial ischemia volume (regional contractility impairment index before PCI 1.36, a year after PCI 1.16; p=0.001). The incidence of restenosis was 7.5%. Restenosis was accompanied by a deterioration of clinical status of patients (silent myocardial ischemia, angina recurrence). The accuracy of stress echocardiography in detecting myocardial ischemia in patients after PCI was 94%. CONCLUSION: Stress EchoCG has high diagnostic accuracy for detection of myocardial ischemia in patients after PCI during the first 12 months after revascularization. PMID- 29041877 TI - [Myocardial Infarction at the Background of Left Bundle Branch Block in the RECORD-3 Registry - Management and Prognosis]. AB - PURPOSE: To study prognostic value of left bundle brunch block (LBBB) in patients with verified myocardial infarction in real clinical practice. MATERIAL AND METHODS: This analysis has been based on data from the RECORD-3 registry. This registry enrolled consecutive patients hospitalized in participating centers with suspected acute coronary syndrome. Among 2368 included patients 91 (3.84%) had LBBB on admission ECG ("new" in 25 [27.4%], "old" in 28 [30.8%]), and of "undetermined duration" in 38 [41.8%]). Myocardial infarction (MI) was verified in 871 patients, 48 of them (5.5%) had LBBB. RESULTS: MI patients with compared with those without LBBB were significantly older (70.5 vs. 64 years, p=0.011), more often had history of MI and cerebral catastrophes, effort angina, symptoms of chronic heart failure and renal pathology. Patients with LBBB twice more often complained of dyspnea/suffocation and had significantly lower mean ejection fraction (44 vs 52%, p=0.001). At prehospital stage, they less often received aspirin, clopidogrel, beta-adrenoblockers. Patients with LBBB more often required artificial pulmonary ventilation (APV) and temporary cardiac pacing, and were less often subjected to reperfusion strategy (52.1 vs. 85%, p. PMID- 29041878 TI - [Influence of Sympathetic Denervation of the Renal Artery on the Level of Arterial Blood Pressure, Cerebral Blood Flow and Cognitive Function In Patients With Resistant Arterial Hypertension]. AB - PURPOSE: To study the effect of radiofrequency ablation of renal arteries on regional cerebral blood flow and cognitive function in patients with resistant arterial hypertension (AH). MATERIAL AND METHODS: Transcatheter renal denervation (TRD) was performed in 17 patients with resistant AH. Examination before and after TRD included SPECT with mTc-HMPAO, 24-hours blood pressure (BP) monitoring, and comprehensive neuropsychological testing. Fifteen patients without angiographic signs of carotid atherosclerosis, coronary artery disease and AH, neurological and psychiatric disorders were investigated as control group. RESULTS: Compared with control group patients with AH had decreases of regional cerebral blood flow (rCBF) in right (by 13.5%, p=0.00002) and left (by 15.5%, p=0.0006) inferior frontal lobes, in right temporal brain region (by 11.5%, p=0.008); in right and left occipital lobes (by 8.2%, p=0.04). In 6 months after TRD we observed significant improvement of cognitive function, parameters of 24 hour BP monitoring, and rCBF. We also noted definite close interdependence between changes of rCBF, indices of 24-hours BP monitoring, and dynamics of cognitive function. Improvement of long-term verbal memory correlated with increases of rCBF in left superior frontal and right occipital regions while dynamics of mentation and attention correlated positively with augmentation of rCBF in right posterior parietal region. Changes of perfusion in inferior parts of left frontal lobe and in right occipital region correlated with dynamics of index of diurnal diastolic hypertension time (R2=0.64, p=0.001, and R2=0.60, p=0.03, respectively). CONCLUSION: Our results suggest, that in patients with resistant AH positive effect of TRD on levels of 24-hour mean BP as well as on indices of BP load leads to in augmentation of rCBF and improvement of cognitive function. PMID- 29041879 TI - [Adherence to Therapy in the Outpatient Setting: the Ability to Identify and Assess the Effectiveness of Therapy]. AB - AIM: To assess adherence of patients to antihypertensive therapy, to determine the role of various factors affecting adherence to treatment by outpatients, and to assess clinical efficacy of a calcium antagonist felodipine. MATERIAL AND METHODS: We examined 5 474 women and men aged >18 years who at visit to a local internist had office systolic arterial pressure (AP) 140-179 and diastolic AP up to 100 mm Hg both on and without hypotensive therapy. Examination included registration of risk factors and concomitant therapy. All patients self-assessed their state of heath using visual analog scale (VAS). Adherence to therapy was evaluated by the Morisky-Green test. Obtaining by a patient of antihypertensive drugs in the framework of the Programme for Supplementary Pharmaceutical Provision (SPP) was necessarily registered. RESULTS: Among examined ambulatory patients with arterial hypertension (AH) and ischemic heart disease (IHD) more than 60% had low adherence to prescribed medications. Such factors as complicated AH course when AH was combined with IHD or diabetes (D), use of angiotensin converting enzyme inhibitors, calcium antagonists, and angiotensin receptor blockers were associated with high adherence to treatment. Male sex, elderly age, presence of risk factors of cardiovascular complications, and long history of AH were associated with low adherence to therapy. Presence of prescribed drugs in the SSP list was associated with high adherence but multifactorial analysis with inclusion of IHD, D, availability of a tonometer at home made contribution of SSP in high adherence insignificant. The use of felodipine allowed not only to achieve pronounced hypotensive effect in patients with AH but also to improve initially low adherence. CONCLUSION: During long-term observation of outpatients, it is necessary to regularly assess possibly low adherence to therapy with the aim of its improvement. PMID- 29041880 TI - [Efficacy of Antihypertensive Therapy Combined With Psychotropic Drugs in Patients With Hypertension and Affective Disorders]. AB - AIM: To compare effects of isolated antihypertensive therapy (AHT) and AHT combined with anxiolytic and antidepressant on parameters of 24-hour blood pressure (BP) profile, severity of affective disorders, and quality of life (QL) in patients with uncontrolled arterial hypertension (AH) and anxiety or depressive disorders. MATERIAL AND METHODS: We randomized 140 patients (age 48.6+/-5.9 year, 72 women) into 2 groups. During 1 year patients of each group received 2 variants of pharmacotherapy: isolated AHT and AHT combined with psychotropic medication (PM) - anxiolytic for persons with anxiety disorder and antidepressant for persons with depressive disorder (AHT+PM). Patients of group I received AHT for first 6 months and AHT+PM for remaining 6 months. Group II patients started with AHT+PM and after 6 months switched to AHT. In each group we selected subgroups of patients with prevailing anxiety (I-A, II-A) and prevailing depression (I-D, II-D). In the end of each 6 months period we compared parameters of 24-hour BP monitoring, severity of affective disorders, and QL in subgroups IA vs. II-A and ID vs. IID. Same comparisons were done for each subgroup in the end of the first and second stages of treatment. RESULTS: Starting with combination AHT provided more rapid achievement of low values of average diurnal and nocturnal systolic (S) and diastolic (D) BP, lower parameters of BP variability. In patients with comorbid depression it led to lowering of magnitude and velocity of morning increment of SBP and DBP. Only combination AHT demonstrated adequate reduction of affective disorders. Both combination and isolated AHT in 6 months resulted in significant improvement of QL, however combination AHT provided significantly better estimates of QL. CONCLUSION: In patients with AH and anxiety or depressive disorders effectiveness of AHT combined with anxiolytic or antidepressant was higher compared with isolated AHT. PMID- 29041881 TI - [Age-Related Changes of Heart Rate Variability at Various Insulin Sensitivity and Telomere Length]. AB - AIM: To study relationship between age-associated changes of heart rate variability (HRV), telomere length (TL), and lowering of insulin sensitivity (IS). MATERIAL AND METHODS: We included in this study 229 individuals aged 23-91 years without clinical manifestations of cardiovascular and other somatic diseases. In all participants, we analyzed HRV parameters obtained at 24-hour ECG monitoring (24-h ECG) and 5 minutes ECG recordings in the supine and standing positions. Leukocyte TL was estimated on genomic DNA using real time polymerase chain reaction. Insulin sensitivity was characterized by calculation of NOMA-IR and Gutt's insulin sensitivity index (ISI). RESULTS: Elderly people with short telomeres (. PMID- 29041882 TI - [Specific Characteristics of Coronary Atherosclerosis]. AB - In this review, we present modern aspects of etiology and pathogenesis of atherosclerosis. We describe the roles played by inflammatory cells, components of cellular response in allergic reactions, disturbances of carbohydrate metabolism, cellular aging, and infection at various stages of formation of atherosclerotic plaques. Special attention is given to the specific characteristics of atherosclerosis and calcification of coronary arteries. We show the influence of age and gender on the disease progression. The review includes information on the importance of myocardial bridges for the change of hemodynamics in segments of coronary arteries. The data presented indicate that differences in localization of atherosclerotic lesions between systems of the right and left coronary arteries depends on their hemodynamic, anatomical and physiological characteristics. According to the literature, anterior descending artery is more vulnerable in this respect. PMID- 29041883 TI - [Molecular Aspects of Translational Cardiology in Vascular Wall Research]. AB - Clinical-biochemical research of vascular wall hydrated state, water-electrolyte balance has broadened substantially our notions concerning initiation mechanism of vessel damages, methods of their prevention and treatment. Consecutive study of endothelial glycocalyx functioning, computational research of its interaction with oxidative stress, regulation of its state has been aimed at development of novel means of the vascular system protection. Mutual efforts of clinicians and scientists should contribute to the productivity of results of translational cardiology. PMID- 29041884 TI - [Syndrome Takotsubo: the Value of Echocardiography]. AB - Analysis of diagnostic and prognostic possibilities of echocardiography in patients with Takotsubo syndrome is given in this review. Special characteristics of local wall motion abnormalities of the left ventricle are presented and main variants of transitory derangements of local contractility are described. Changes of parameters of deformation of left and right ventricles in acute period and during follow-up are analyzed in detail. A spectrum of complications of the syndrome in detection of which echocardiography plays the leading role is outlined. The review also contains analysis of prognostically unfavorable states and echocardiographic parameters specific for Takotsubo syndrome. PMID- 29041885 TI - [Review of Novel Clinical Recommendations on Diagnosis and Treatment of Atrial Fibrillation (2016) of the European Society of Cardiology Developed in Collaboration With the European Association for Car dio-Thor acic Surgery]. PMID- 29041886 TI - [Polymorphisms in Genes of Cytokines and Matrix Metalloproteinases Associated With Ischemic Heart Disease in Patients With Type 2 Diabetes]. AB - OBJECTIVE: To examine associations between ischemic heart disease (IHD) and polymorphisms in cytokine genes (IL-1B, IL-4, IL-6, IL-10, TNFA, VEGF) and matrix metalloproteinase genes (MMP2, MMP3, MMP9) in patients with type 2 diabetes. MATERIAL AND METHODS: We studied 232 Caucasian diabetic subjects (33 men and 199 women aged 50-70 years). In 93 patients IHD was verified by treadmill test and/or coronary angiography (86 subjects with stable angina, 19 with previous myocardial infarction). Thirteen polymorphisms localized in the promoters of IL-1B (rs1143627), IL-4 (rs2243250), IL-6 (rs1800795), IL-10 (rs1800872, rs1800896), TNFA (rs361525, rs1800629, rs1800630), VEGF (rs699947, rs3025039), MMP2 (rs243865), MMP3 (rs3025058) and MMP9 (rs3918242) were investigated. RESULTS: Prevalence of G-allele and GG-genotype at -308 position of TNFA (rs1800629), as well as C-allele and CC-genotype at position +936 of VEGF (rs3025039) was higher in patients with IHD as compared to patients without IHD (OR=2.0, OR=2.2, OR=2.1, OR=2.4, respectively, all p=0.02). In logistic regression analysis, TNFA -308 A/G and VEGF +936 C/T polymorphisms showed associations with IHD (both p=0.009). These polymorphisms along with age, body mass index, duration of diabetes, low density and high density lipoprotein cholesterol were associated with IHD in multivariate models (p=0.0002 and p=0.00008, respectively). Nine combinations of TNFA -308 GG-genotype and variants of other genes demonstrated associations with IHD (p<=0.002). CONCLUSION: The polymorphisms in promoter regions of TNFA (rs1800629) and VEGF (rs3025039) are associated with IHD in patients with type 2 diabetes. PMID- 29041887 TI - [Comparison of Diagnostic Values of Instantaneous Wave-Free R atio and Fractional Flow R eserve With Noninvasive Methods for Evaluating Myocardial Ischemia in Assessment of the Functional Significance of Intermediate Coronary Stenoses in Patients With Chronic Ischemic Heart Disease]. AB - OBJECTIVE: To compare the diagnostic accuracy of instantaneous wave-free ratio (iFR) and fractional flow reserve (FFR) with noninvasive methods in assessment of the functional significance of moderate coronary stenoses in patients with chronic ischemic heart disease (IHD). METHODS: We included in this study 50 patients with chronic or suspected IHD and moderate coronary stenoses (50-70%; 74 stenoses). Values of iFR and FFR were determined within 10 days after noninvasive stress tests (combination of stress-echo and SPECT). The values of iFR and FFR were compared with the results of noninvasive methods by ROC-analysis. Coronary artery stenosis was considered functionally important if at least one of noninvasive tests (stress-echo or SPECT) demonstrated positive result. RESULTS: The results of noninvasive stress-tests were positive in 14 patients (28%). ROC area under the curve (AUC) for iFR - 0.961+/-0.019 (95%CI 0.888-0.992). The best cut-off point for iFR is 0.92 (sensitivity 100, specificity 84%). ROC AUC for FFR - 0.893+/-0.041 (95%CI 0.79-0.96). The best cut-off point for FFR is 0.81 (sensitivity 100% and specificity 69%). There was no significant difference between iFR and FFR ROC-curves (r=0.0845). CONCLUSION: The values of iFR and FFR have equivalent agreement with the results of noninvasive tests commonly used to detect myocardial ischemia in patients with moderate coronary stenoses. PMID- 29041888 TI - [Diffusion Capacity of the Lung and Maladaptive Post-Infarction Remodeling of the Heart]. AB - OBJECTIVE: To assess the association of the lowering of diffusion capacity of the lung and maladaptive remodeling of the heart in a year after myocardial infarction (MI). MATERIALS AND METHODS: We included into this study 107 patients with ST elevation MI (STEMI). Examination of all patients on 7-12 th days included echocardiography (echoCG), spirography, body plethysmography, and determination of lung diffusion capacity. After one year of observation in 87 patients (81.3%) we performed echocardiogram in dynamics. RESULTS: After 1 year signs of maladaptive remodeling were detected in 25 patients (28.7%). The group of patients with remodeling had clinically significantly lowered parameters of lung diffusion function: diffusion capacity corrected for hemoglobin (DLCOcor) by 30% (p=0.001) and diffusing capacity for carbon monoxide/alveolar volume (DL/VA) by 21% (p=0.001). A mathematical model for prediction of maladaptive cardiac remodeling was obtained by the method of multivariate discriminant analysis. Univariate analysis showed that the reduction of DLCOcor was associated with 3.5 fold elevation of the risk of maladaptive remodeling in one year after STEMI. After adjustment for risk factors this risk rose up to 13.7-fold. CONCLUSION: Reduction of lung diffusion capacity below 80% of the predicted value on the 12 th day of STEMI was associated with 13.7-fold increase of the risk of detection of maladaptive remodeling of the heart after one year. Independent predictors of cardiac maladaptive remodeling were the number of diseased coronary arteries, reduced DLCO and the presence of myocardial remodeling during acute phases of myocardial infarction. PMID- 29041889 TI - [Multifactorial Prognostication of Remote Outcomes in Patients With Non-ST Elevation Acute Coronary Syndrome]. AB - AIM: Creation of a mathematical nonlinear regression model for prognostication of 1 year outcomes after non-ST elevation acute coronary syndrome (NSTE ACS) for optimization of rehabilitation, secondary prevention, and personalized approach to treatment. MATERIAL AND METHODS: We included in this study 135 patients with confirmed NSTE ACS (mean age 59.1+/-6.1 years, 94 men and 41 women) admitted to hospital No 1 in Novosibirsk during 2010. During hospitalization and 1 year after discharge these patients received standard medical therapy. All patients underwent clinical and instrumental examination which included electrocardiography, echocardiography, Holter ECG monitoring. Program of clinical investigation also included determination of levels of inflammatory cytokines and molecular genetic studies. Effect of each of studied parameters on the probability of unfavorable one year prognosis was assessed by methods of correlation and factor analysis. RESULTS: The constructed mathematical model of multifactor prognostication of 1 year unfavorable or favorable outcomes after NSTE ACS included patient's age in years, presence of tachycardia at admission, Killip class >II, life-threatening paroxysmal tachyarrhythmias, as well as serum concentration of high-sensitivity C-reactive protein and CT genotype of a polymorphic variant rs1376251 of TAS2R50 gene. CONCLUSION: The use of the proposed model of multivariate prognostication of 1 year outcomes of NSTE ACS allows to improve the accuracy of events prediction, as it is based on data from Russian patients and takes into account the activity of subclinical inflammation and genotype of the patient. The model is simple to use and allows to personalize secondary prevention, which will facilitate lowering of total cardiovascular risk in these patients. PMID- 29041891 TI - [Functional State of Vascular Endothelium in Patients With Pulmonary Arterial Hypertension Associated With Congenital Heart Diseases]. AB - In this article, we present results of the study of blebbing activity of membranes of peripheral blood lymphocytes, concentrations of soluble platelet/endothelial cell adhesion molecule 1, and vascular endothelial growth factor (VEGF) in patients with pulmonary arterial hypertension associated with congenital heart diseases. The research has shown that hypoxia and hemodynamic factors are the initiators of blebbing of membrane of peripheral blood lymphocytes. The activity of blebbing increases in parallel with the severity of the disease. Aberrant leukocyte-endothelial interactions lead to the breach of athrombogenic endothelium function, hypercoagulation and risk of thrombosis. Revealed overexpression of VEGF, aimed at restoration of endothelial cells, has been most pronounced in cyanotic congenital heart defects. We suggest that the potentiating effect of apoptosis and endothelial cells' proliferation is a key factor of irreversibility of pulmonary arterial hypertension in congenital heart defects. PMID- 29041892 TI - [Randomized Controlled Trials in Patients With Heart Failure in Russia Following the Study Topcat: What Awaits us in the Future]. PMID- 29041890 TI - [Effect of Cholecalciferol and Diuretics as Components of Combination Antihypertensive Therapy on Plasma Renin Activity and Endothelial Function in Patients With Arterial Hypertension]. AB - AIM: To evaluate the effect of cholecalciferol and diuretics as components of combination antihypertensive therapy (CAHT) on plasma renin activity (PRA) and endothelial function in patients with arterial hypertension (AH). MATERIALS AND METHODS: We included in this prospective study 153 patients with II-degree AH. Duration of follow-up was 15.8+/-1.8 months. Patients were divided into four groups: patients of group 0 received CAHT without cholecalciferol or diuretic; of group 1 - CAHT with cholecalciferol (2000 IU daily); of group 2 - CAHT with diuretic; of group 3 - CAHT with diuretic and cholecalciferol 2000 IU daily. RESULTS: After treatment, the highest level of 25-hydroxy vitamin D (25(OH)D) (48.9 [34.3; 67.9] ng/ml) and its greatest dynamics (Delta) - (27.5 [6.2; 48.8] ng/mL) were observed in group 1. With diuretics blood level of 25(OH)D and its Delta were lower (p. PMID- 29041893 TI - [Transcatheter Implantation of Mitral Valve Prostheses: Current Status of the Problem]. AB - Mitral valve disease is highly prevalent and quickly leads to development of severe heart failure. Mitral valve disease of degenerative or ischemic etiology affects 7.5 and 9.3% of population older than 65 and 75 years, respectively. "Open" (with cardiopulmonary bypass) surgical repair or valve replacement are not possible in almost half of affected patients because of their complications and concomitant diseases responsible for extremely high risk of these interventions. In the last decade, minimally invasive endovascular technology - transcatheter aortic valve implantation (TAVI) - has been widely introduced for correction of aortic valve disease in similar category of patients. However, transcatheter mitral valve implantation (TMVI) has been developed just during recent couple of years. PMID- 29041894 TI - [Clinical Features of Arterial Hypertension in the Elderly and Senile Age and the Rationale for Using the Combination of Amlodipine/Indapamide-retard]. AB - The proportion of elderly in the population is growing. The two-thirds of those over the age of 65 has arterial hypertension (AH). There is a significant increase in the incidence of isolated systolic hypertension with age. The relationship between increased pulse pressure, arterial stiffness and aging processes has been repeatedly confirmed in population epidemiological studies. Some evidence has been found that the treatment of AH in the elderly is accompanied by a reduction in the risk of cardiovascular diseases. Target levels of blood pressure (BP) in elderly people with AH younger than 80 years, as well as over 80 years with a satisfactory physical and cognitive status with systolic BP >=160 mm Hg is recommended to be reduce to 140-150 mm Hg. Low doses of thiazide diuretics and long-acting calcium channels blockers (mainly dihydropyridine) are attributed to first-line drugs in order to effectively reduce cardiovascular complications in the treatment of AH in the elderly. Their prescription as a fixed-dose combination appears to be an optimal solution when monotherapy is fails. PMID- 29041895 TI - [Actual Issues of Choosing Anticoagulant Therapy for Long-term Prophylaxis of Thromboembolic Complications]. AB - The article contains presentation of actual problems of selection of anticoagulant therapy for long term prevention of thromboembolic complications in outpatients with atrial fibrillation, chronic heart failure, and chronic kidney disease.tions in ambulatory Patients with atrial fibrillation, chronic heart failure and chronic kidney disease. PMID- 29041896 TI - [Recommendations of the Society of Specialists in Urgent Cardiology Diagnosis and Treatment of Patients With Non-ST-Segment Elevation Acute Coronary Syndrome. Part 1]. PMID- 29041897 TI - Small molecule modulation of splicing factor expression is associated with rescue from cellular senescence. AB - BACKGROUND: Altered expression of mRNA splicing factors occurs with ageing in vivo and is thought to be an ageing mechanism. The accumulation of senescent cells also occurs in vivo with advancing age and causes much degenerative age related pathology. However, the relationship between these two processes is opaque. Accordingly we developed a novel panel of small molecules based on resveratrol, previously suggested to alter mRNA splicing, to determine whether altered splicing factor expression had potential to influence features of replicative senescence. RESULTS: Treatment with resveralogues was associated with altered splicing factor expression and rescue of multiple features of senescence. This rescue was independent of cell cycle traverse and also independent of SIRT1, SASP modulation or senolysis. Under growth permissive conditions, cells demonstrating restored splicing factor expression also demonstrated increased telomere length, re-entered cell cycle and resumed proliferation. These phenomena were also influenced by ERK antagonists and agonists. CONCLUSIONS: This is the first demonstration that moderation of splicing factor levels is associated with reversal of cellular senescence in human primary fibroblasts. Small molecule modulators of such targets may therefore represent promising novel anti degenerative therapies. PMID- 29041898 TI - Societal preferences for adjuvant melanoma health states: UK and Australia. AB - BACKGROUND: No studies have measured preference-based utility weights for specific toxicities and outcomes associated with approved and investigational adjuvant treatments for patients with resected high-risk melanoma. METHODS: A cross-sectional study was conducted in the United Kingdom and Australia to obtain utilities for 14 adjuvant melanoma health states. One-on-one interviews were conducted using standard gamble; utility weights range from 0.0, dead, to 1.0, full health. Supplemental risk questions also were asked. RESULTS: Among 155 participants (52% male; mean age, 46 years) "adjuvant treatment no toxicities" (0.89) was most preferred, followed by "induction treatment" (0.88), and "no treatment" (0.86). Participants least preferred "cancer recurrence" (0.62); the utility for "cancer recurrence and 10-year survival with treatment" was 0.70. Disutilities for grade 2 toxicities ranged from -0.06 for fatigue to -0.13 for hypophysitis. The mean maximum acceptable risk of a life-threatening event ranged from 30% for a 6% increase in the chance of remaining cancer free over 3 years to 40% for an 18% increase; Australian respondents were willing to take higher risks. CONCLUSION: Reproducible health utilities for adjuvant melanoma health states were obtained from the general population in two countries. These utilities can be incorporated into treatment-specific cost-effectiveness evaluations. PMID- 29041899 TI - How effective are family-based and institutional nutrition interventions in improving children's diet and health? A systematic review. AB - BACKGROUND: Effective strategies to improve dietary intake in young children are a priority to reduce the high prevalence of chronic non-communicable diseases in adulthood. This study aimed to assess the impact of family-based and school/preschool nutrition programs on the health of children aged 12 or younger, including the sustainability of these impacts and the relevance to socio-economic inequalities. METHODS: A systematic review of literature published from 1980 to December 2014 was undertaken. Randomised controlled trials involving families with children aged up to 12 years in high income countries were included. The primary outcomes were dietary intake and health status. Results were presented in a narrative synthesis due to the heterogeneity of the interventions and outcomes. RESULTS: The systematic search and assessment identified 39 eligible studies. 82% of these studies were set in school/preschools. Only one school study assessed the impact of involving parents systematically. The family-based programs which provided simple positive dietary advice to parents and regular follow-up reduced fat intake significantly. School and family-based studies, if designed and implemented well, increased F&V intake, particularly fruit. Effective school based programs have incorporated role-models including peers, teachers and heroic figures, rewards and increased access to healthy foods. School nutrition programs in disadvantaged communities were as effective as programs in other communities. CONCLUSIONS: Family and school nutrition programs can improve dietary intake, however evidence of the long-term sustainability of these impacts is limited. The modest overall impact of even these successful programs suggest complementary nutrition interventions are needed to build a supportive environment for healthy eating generally. PMID- 29041900 TI - Mutual maintenance of di- and triploid Pelophylax esculentus hybrids in R-E systems: results from artificial crossings experiments. AB - BACKGROUND: Interspecies animal hybrids can employ clonal or hemiclonal reproduction modes where one or all parental genomes are transmitted to the progeny without recombination. Nevertheless, some interspecies hybrids retain strong connection with the parental species needed for successful reproduction. Appearance of polyploid hybrid animals may play an important role in the substitution of parental species and in the speciation process. RESULTS: To establish the mechanisms that enable parental species, diploid and polyploid hybrids coexist we have performed artificial crossing experiments of water frogs of Pelophylax esculentus complex. We identified tadpole karyotypes and oocyte genome composition in all females involved in the crossings. The majority of diploid and triploid hybrid frogs produced oocytes with 13 bivalents leading to haploid gametes with the same genome as parental species hybrids usually coexist with. After fertilization of such gametes only diploid animals appeared. Oocytes with 26 bivalents produced by some diploid hybrid frogs lead to diploid gametes, which give rise to triploid hybrids after fertilization. In gonads of all diploid and triploid hybrid tadpoles we found DAPI-positive micronuclei (nucleus-like bodies) involved in selective genome elimination. Hybrid male and female individuals produced tadpoles with variable karyotype and ploidy even in one crossing owing to gametes with various genome composition. CONCLUSIONS: We propose a model of diploid and triploid hybrid frog reproduction in R-E population systems. Triploid Pelophylax esculentus hybrids can transmit genome of parental species they coexist with by producing haploid gametes with the same genome composition. Triploid hybrids cannot produce triploid individuals after crossings with each other and depend on diploid hybrid females producing diploid eggs. In contrast to other population systems, the majority of diploid and triploid hybrid females unexpectedly produced gametes with the same genome as parental species hybrids coexist with. PMID- 29041901 TI - Prevalence of drug-resistant pulmonary tuberculosis in India: systematic review and meta-analysis. AB - BACKGROUND: Drug-resistant pulmonary tuberculosis (DR-TB) is a significant public health issue that considerably deters the ongoing TB control efforts in India. The purpose of this review was to investigate the prevalence of DR-TB and understand the regional variation in resistance pattern across India from 1995 to 2015, based on a large body of published epidemiological studies. METHODS: A systematic review of published studies reporting prevalence of DR-TB from biomedical databases (PubMed and IndMed) was conducted. Meta-analysis was performed using random effects model and the pooled prevalence estimate (95% confidence interval [CI]) of DR-TB, multidrug resistant (MDR-) TB, pre extensively drug-resistant (pre-XDR) TB and XDR-TB were calculated across two study periods (decade 1: 1995 to 2005; decade 2: 2006 to 2015), countrywide and in different regions. Heterogeneity in this meta-analysis was assessed using I2 statistic. RESULTS: A total of 75 of 635 screened studies that fulfilled the inclusion criteria were selected. Over 40% of 45,076 isolates suspected for resistance to any first-line anti-TB drugs tested positive. Comparative analysis revealed a worsening trend in DR-TB between the two study decades (decade 1: 37.7% [95% CI = 29.0; 46.4], n = 25 vs decade 2: 46.1% [95% CI = 39.0; 53.2], n = 36). The pooled estimate of MDR-TB resistance was higher in previously treated patients (decade 1: 29.8% [95% CI = 20.7; 39.0], n = 13; decade 2: 35.8% [95% CI = 29.2; 42.4], n = 24) as compared with the newly diagnosed cases (decade 1: 4.1% [95% CI = 2.7; 5.6], n = 13; decade 2: 5.6% [95% CI = 3.8; 7.4], n = 17). Overall, studies from Western states of India reported highest prevalence of DR TB (57.8% [95% CI = 37.4; 78.2], n = 6) and MDR-TB (39.9% [95% CI = 21.7; 58.0], n = 6) during decade 2. Prevalence of pre-XDR TB was 7.9% (95% CI = 4.4; 11.4, n = 5) with resistance to fluoroquinolone (66.3% [95% CI = 58.2; 74.4], n = 5) being the highest. The prevalence of XDR-TB was 1.9% (95% CI = 1.2; 2.6, n = 14) over the 20-year period. CONCLUSION: The alarming increase in the trend of anti TB drug resistance in India warrants the need for a structured nationwide surveillance to assist the National TB Control Program in strengthening treatment strategies for improved outcomes. PMID- 29041902 TI - An analysis of 67 RNA-seq datasets from various tissues at different stages of a model insect, Manduca sexta. AB - BACKGROUND: Manduca sexta is a large lepidopteran insect widely used as a model to study biochemistry of insect physiological processes. As a part of its genome project, over 50 cDNA libraries have been analyzed to profile gene expression in different tissues and life stages. While the RNA-seq data were used to study genes related to cuticle structure, chitin metabolism and immunity, a vast amount of the information has not yet been mined for understanding the basic molecular biology of this model insect. In fact, the basic features of these data, such as composition of the RNA-seq reads and lists of library-correlated genes, are unclear. From an extended view of all insects, clear-cut tempospatial expression data are rarely seen in the largest group of animals including Drosophila and mosquitoes, mainly due to their small sizes. RESULTS: We obtained the transcriptome data, analyzed the raw reads in relation to the assembled genome, and generated heatmaps for clustered genes. Library characteristics (tissues, stages), number of mapped bases, and sequencing methods affected the observed percentages of genome transcription. While up to 40% of the reads were not mapped to the genome in the initial Cufflinks gene modeling, we identified the causes for the mapping failure and reduced the number of non-mappable reads to <8%. Similarities between libraries, measured based on library-correlated genes, clearly identified differences among tissues or life stages. We calculated gene expression levels, analyzed the most abundantly expressed genes in the libraries. Furthermore, we analyzed tissue-specific gene expression and identified 18 groups of genes with distinct expression patterns. CONCLUSION: We performed a thorough analysis of the 67 RNA-seq datasets to characterize new genomic features of M. sexta. Integrated knowledge of gene functions and expression features will facilitate future functional studies in this biochemical model insect. PMID- 29041903 TI - Imputation of missing genotypes within LD-blocks relying on the basic coalescent and beyond: consideration of population growth and structure. AB - BACKGROUND: Genotypes not directly measured in genetic studies are often imputed to improve statistical power and to increase mapping resolution. The accuracy of standard imputation techniques strongly depends on the similarity of linkage disequilibrium (LD) patterns in the study and reference populations. Here we develop a novel approach for genotype imputation in low-recombination regions that relies on the coalescent and permits to explicitly account for population demographic factors. To test the new method, study and reference haplotypes were simulated and gene trees were inferred under the basic coalescent and also considering population growth and structure. The reference haplotypes that first coalesced with study haplotypes were used as templates for genotype imputation. Computer simulations were complemented with the analysis of real data. Genotype concordance rates were used to compare the accuracies of coalescent-based and standard (IMPUTE2) imputation. RESULTS: Simulations revealed that, in LD-blocks, imputation accuracy relying on the basic coalescent was higher and less variable than with IMPUTE2. Explicit consideration of population growth and structure, even if present, did not practically improve accuracy. The advantage of coalescent-based over standard imputation increased with the minor allele frequency and it decreased with population stratification. Results based on real data indicated that, even in low-recombination regions, further research is needed to incorporate recombination in coalescence inference, in particular for studies with genetically diverse and admixed individuals. CONCLUSIONS: To exploit the full potential of coalescent-based methods for the imputation of missing genotypes in genetic studies, further methodological research is needed to reduce computer time, to take into account recombination, and to implement these methods in user-friendly computer programs. Here we provide reproducible code which takes advantage of publicly available software to facilitate further developments in the field. PMID- 29041904 TI - Shift in the function of netrin-1 from axon outgrowth to axon branching in developing cerebral cortical neurons. AB - BACKGROUND: Netrin-1, a multifunctional axon guidance cue, elicits axon outgrowth via one of its receptors deleted in colorectal cancer (DCC) in several types of neurons, including cerebral cortical neurons of embryonic mice. However, we and others have observed de novo formation of axon branches without axon outgrowth induced by netrin-1 in cortical culture of neonatal hamsters. These previous reports suggested the possibility that netrin-1 function might alter during development, which we here investigated using dissociated culture prepared from cerebral cortices of embryonic mice. RESULTS: Imaging analysis revealed netrin-1 induced outgrowth in embryonic day (E) 14 axons and netrin-1-induced branching in E16 axons. Netrin-1-evoked filopodial protrusions, which sprouted on the shafts of E16 axons preceding branch formation, were visualized by a novel method called atmospheric scanning electron microscopy. Treatment with an anti-DCC function blocking antibody affected both axon outgrowth and branching. CONCLUSIONS: Morphological analyses suggested a possibility of a shift in the function of netrin-1 in cortical axons during development, from promotion of outgrowth to promotion of branch formation starting with filopodial protrusion. Function blocking experiments suggested that DCC may contribute not only to axon outgrowth but branching. PMID- 29041905 TI - Clinicopathological and prognostic significance of programmed death ligand-1 expression in breast cancer: a meta-analysis. AB - BACKGROUND: Programmed cell death-ligand 1 (PD-L1) may be a useful molecule for targeted immunotherapy. Therefore, this meta-analysis aimed to investigate PD-L1 expression in breast cancer and its associations with clinicopathological factors and outcomes, which may help determine whether PD-L1 expression is a useful prognostic marker. METHODS: The Medline Ovid, Cochrane, PubMed, Google Scholar, and Web of Knowledge databases were searched for studies that evaluated the prognostic or clinicopathological significance of PD-L1 expression in patients with breast cancer, and reported at least one survival-related outcome. RESULTS: Six studies that included 7877 cases were selected for the analysis. Higher PD-L1 expression in all cells was related to higher histological grade and lymph node metastasis. Higher PD-L1 expression in tumor cell was related to larger tumor size, estrogen receptor negativity, progesterone receptor negativity, human epidermal growth factor type-2 positivity, and triple-negative breast cancer. PD L1 positivity in all cells was associated with poorer disease-free survival, although it was not significantly associated with overall survival. CONCLUSION: The present meta-analysis revealed that cases of breast cancer with PD-L1 positivity in all cells exhibited higher histological grades, lymph node metastasis, and poorer disease-free survival. Therefore, positive expression of PD-L1 may be a useful prognostic marker in breast cancer. PMID- 29041906 TI - From provocation to aggression: the neural network. AB - BACKGROUND: In-vivo observations of neural processes during human aggressive behavior are difficult to obtain, limiting the number of studies in this area. To address this gap, the present study implemented a social reactive aggression paradigm in 29 healthy men, employing non-violent provocation in a two-player game to elicit aggressive behavior in fMRI settings. RESULTS: Participants responded more aggressively after high provocation reflected in taking more money from their opponents. Comparing aggression trials after high provocation to those after low provocation revealed activations in neural circuits involved in aggression: the medial prefrontal cortex (mPFC), the orbitofrontal cortex (OFC), the dorsolateral prefrontal cortex (dlPFC), the anterior cingulate cortex (ACC), and the insula. In general, our findings indicate that aggressive behavior activates a complex, widespread brain network, reflecting a cortico-limbic interaction and overlapping with circuits underlying negative emotions and conflicting decision-making. Brain activation during provocation in the OFC was associated with the degree of aggressive behavior in this task. CONCLUSION: Therefore, data suggest there is greater susceptibility for provocation, rather than less inhibition of aggressive tendencies, in individuals with higher aggressive responses. This further supports the hypothesis that reactive aggression can be seen as a consequence of provocation of aggressive emotional responses and parallel evaluative regulatory processes mediated mainly by the insula and prefrontal areas (OFC, mPFC, dlPFC, and ACC) respectively. PMID- 29041907 TI - Detection of bacterial DNA by in situ hybridization in patients with decompensated liver cirrhosis. AB - BACKGROUND: Spontaneous bacterial peritonitis (SBP) is often difficult to diagnose because bacteria in ascites cannot be detected accurately by conventional culture. In situ hybridization (ISH) was previously developed for rapid detection of genes from bacteria phagocytized by neutrophils. SBP may develop after bacteria enter into the systemic circulation following bacterial translocation. Therefore, we performed ISH to identify bacteria in blood samples collected from patients with decompensated liver cirrhosis (LC). METHODS: In this retrospective study, peripheral blood samples were collected from 60 patients with decompensated LC, and bacteria were detected by both blood culture and ISH. Moreover, 35 patients underwent paracentesis for diagnosis of SBP. RESULTS: Eight of 35 patients were diagnosed with SBP by polymorphonuclear neutrophil counts, and one patient was diagnosed with bacterascites. Seven of the nine patients showed positive results for ISH, whereas bacteria were detected in only two cases by blood culture. Thirty-seven of 60 cases (62%) showed positive results for ISH, whereas only six samples (10%) were positive by blood culture analysis. Compared with the 23 cases of negative ISH, the 37 cases of positive ISH showed a higher frequency of fever, higher Child-Pugh scores, and lower albumin levels. CONCLUSIONS: Detection of bacteria by ISH suggested that bacterial translocation, which cannot be proven by conventional culture, occurred in these patients, and that ISH could be helpful for the early diagnosis of some types of infection and prevention of SBP in these patients. PMID- 29041908 TI - A qualitative study of employees' opinions on establishing a generic call-centre. AB - BACKGROUND: To investigate opinions among employees at an Out-of-Hours general practitioner (OOH-GP) service and a safety alarm service about the establishment of a generic call-centre. METHODS: Qualitative study using individual and group interviews with 14 employees and managers involved in preparation of a merge into a new generic call-centre. They were asked about their opinions towards establishing a generic call-centre where all contact about unplanned health inquiries from the public had to be done by telephone and how to solve more requests on the phone. Data was analysed thematically. RESULTS: Participants who alternate between call handling and direct patient contact (personnel at the OOH GP) believed that just handling calls would be monotonous, less challenging and provide poorer quality. This was not supported by those working at the safety alarm service. There were different opinions about introducing mandatory use of decision support system for all inquiries, but it was a common understanding that it would lead to more patients in need of face-to-face consultations due to over triage. To solve more requests on the phone participants believed a public information campaign was required, that GPs received more of the emergency requests within their ordinary working hours and having salaried doctors in the OOH-GP service. CONCLUSION: In the participants' opinion, successful establishment of a generic call-centre depends on the employees' possibility of direct patient contact, clarifications on the use of decision support system and good information to the population. PMID- 29041909 TI - Cost-utility analysis of Palivizumab for Respiratory Syncytial Virus infection prophylaxis in preterm infants: update based on the clinical evidence in Spain. AB - BACKGROUND: This study aimed at estimating the efficiency of palivizumab in the prevention of Respiratory Syncytial Virus (RSV) infection and its sequelae in preterm infants (32day 1-35day 0weeks of gestational age -wGA-) in Spain. METHODS: A decision-tree model was developed to compare health benefits (Quality Adjusted Life Years-QALYs) and costs of palivizumab versus a non-prophylaxis strategy over 6 years. A hypothetical cohort of 1,000 preterm infants, 32day 1 35day 0 wGA (4.356 kg average weight) at the beginning of the prophylaxis (15 mg/kg of palivizumab; 3.88 average number of injections per RSV season) was analysed. The model considered the most recent evidence from Spanish observational and epidemiological studies on RSV infection: the FLIP II study provided hospital admission and Intensive Care Unit (ICU) admission rates; in hospital mortality rate was drawn from an epidemiological study from 2004 to 2012; recurrent wheezing rates associated to RSV infection from SPRING study were adjusted by the evidence on the palivizumab effect from clinical trials. Quality of life baseline value, number of hospitalized infants and the presence of recurrent wheezing over time were granted to estimate QALYs. National Health Service and societal perspective (included also recurrent wheezing indirect cost) were analysed. Total costs (?, 2016) included pharmaceutical and administration costs, hospitalization costs and recurrent wheezing management annual costs. A discount rate of 3.0% was applied annually for both costs and health outcomes. RESULTS: Over 6 years, the base case analysis showed that palivizumab was associated to an increase of 0.0731 QALYs compared to non-prophylaxis. Total costs were estimated in ?2,110.71 (palivizumab) and ?671.68 (non-prophylaxis) from the National Health System (NHS) perspective, resulting in an incremental cost utility ratio (ICUR) of ?19,697.69/QALYs gained (prophylaxis vs non prophylaxis). Results derived from the risk-factors population subgroups analysed were in line with the total population results. From the societal perspective, the incremental cost associated to palivizumab decreased to an ?1,253.14 (ICUR = ?17,153.16?/QALYs gained for palivizumab vs non-prophylaxis). One-way and probabilistic sensitivity analyses confirmed the robustness of the model. CONCLUSIONS: The prophylaxis with palivizumab is efficient for preventing from RSV infections in preterm infants 32day 1-35day 0 wGA in Spain. PMID- 29041910 TI - Takotsubo cardiomyopathy in a patient with ileus: a case report. AB - BACKGROUND: Takotsubo cardiomyopathy (TCM) is a form of stress-induced cardiomyopathy featured by the dilatation of the apex of the left ventricle during systole. Whereas the pathogenesis of this disorder is not well understood, it usually occurs after an emotional or physical stress such as acute asthma, surgery, chemotherapy, and stroke. However, its occurrence in ileus patients is rarely reported. We hereby report probably the first case of TCM after ileus in the literature and discuss its implications. CASE PRESENTATION: An 85-year-old man was brought to the Emergency Department due to vomiting, abdominal pain, and no stool passages for 2 days. His abdomen was markedly distended, and ileus pattern was observed in the plain film of abdomen. Electrocardiogram showed right axis deviation, poor R-wave progression, and diffuse ST-segment elevation in the anterior leads, and cardiomegaly was observed by roentgenogram. A ventriculography showed an ejection fraction of 33% and confirmed the apical dilation consistent with TCM. He was treated with medication and discharged without remarkable adverse events. A follow-up transthoracic echocardiogram 4 months later showed normalization of his left ventricular systolic functions. CONCLUSION: The precise mechanisms of the development of TCM are still unknown, but it is widely believed that it is triggered by the catecholamine surge produced in response to stress. This case demonstrated that such a stress can be of various forms, including ileus and other conditions that may lead to severe abdominal pain, and highlight the importance of awareness in diagnosing this rare but potentially lethal condition. PMID- 29041911 TI - Role of tube size and intranasal compression of the nasotracheal tube in respiratory pressure loss during nasotracheal intubation: a laboratory study. AB - BACKGROUND: Small nasotracheal tubes (NTTs) and intranasal compression of the NTT in the nasal cavity may contribute to increasing airway resistance. Since the effects of size, shape, and partial compression of the NTT on airway resistance have not been investigated, values of airway resistance with partial compression of preformed NTTs of various sizes were determined. METHODS: To determine the factors affecting the respiratory pressure loss during the nasotracheal intubation, physical and fluid dynamics simulations were used. The internal minor axes of NTTs in the nasal cavity of intubated patients were measured using dial calipers. In physical and fluid dynamics simulations, pressure losses through the tubular parts, compressed parts, and slip joints of NTTs with internal diameters (IDs) of 6.0, 6.5, 7.0, 7.5, and 8.0 mm were estimated under partial compression. RESULTS: The median internal minor axes of the 7.0- and 7.5-mm ID NTTs in the nasal cavity were 5.2 (4.3-5.6) mm and 6.0 (4.2-7.0) mm, respectively. With a volumetric air flow rate of 30 L/min, pressure losses through uncompressed NTTs with IDs of 6.0-, 6.5-, 7.0-, 7.5- and 8.0-mm were 651.6 +/- 5.7 (6.64 +/- 0.06), 453.4 +/- 3.9 (4.62 +/- 0.04), 336.5 +/- 2.2 (3.43 +/- 0.02), 225.2 +/- 0.2 (2.30 +/- 0.00), and 179.0 +/- 1.1 Pa (1.82 +/- 0.01 cmH2O), respectively; the pressure losses through the slip joints were 220.3 (2.25), 131.1 (1.33), 86.8 (0.88), 57.1 (0.58), and 36.1 Pa (0.37 cmH2O), respectively; and the pressure losses through the curvature of the NTT were 71.6 (0.73), 69.0 (0.70), 64.8 (0.66), 32.5 (0.33), and 41.6 Pa (0.42 cmH2O), respectively. A maximum compression force of 34.1 N increased the pressure losses by 82.0 (0.84), 38.0 (0.39), 23.5 (0.24), 16.6 (0.17), and 9.3 Pa (0.09 cmH2O), respectively. CONCLUSION: Pressure losses through NTTs are in inverse proportion to the tubes' IDs; greater pressure losses due to slip joints, acute bending, and partial compression of the NTT were obvious in small NTTs. Pressure losses through NTTs, especially in small NTTs, could increase the work of breathing to a greater extent than that through standard tubes; intranasal compression further increases the pressure loss. PMID- 29041912 TI - Quality of life questionnaire predicts poor exercise capacity only in HFpEF and not in HFrEF. AB - BACKGROUND: The Minnesota Living with Heart Failure Questionnaire (MLHFQ) is the most widely used measure of quality of life (QoL) in HF patients. This prospective study aimed to assess the relationship between QoL and exercise capacity in HF patients. METHODS: The study subjects were 118 consecutive patients with chronic HF (62 +/- 10 years, 57 females, in NYHA I-III). Patients answered a MLHFQ questionnaire in the same day of complete clinical, biochemical and echocardiographic assessment. They also underwent a 5 min walk test (6-MWT), in the same day, which grouped them into; Group I: <= 300 m and Group II: >300 m. In addition, left ventricular (LV) ejection fraction (EF), divided them into: Group A, with preserved EF (HFpEF) and Group B with reduced EF (HFrEF). RESULTS: The mean MLHFQ total scale score was 48 (+/-17). The total scale, and the physical and emotional functional MLHFQ scores did not differ between HFpEF and HFpEF. Group I patients were older (p = 0.003), had higher NYHA functional class (p = 0.002), faster baseline heart rate (p = 0.006), higher prevalence of smoking (p = 0.015), higher global, physical and emotional MLHFQ scores (p < 0.001, for all), larger left atrial (LA) diameter (p = 0.001), shorter LV filling time (p = 0.027), higher E/e' ratio (0.02), shorter isovolumic relaxation time (p = 0.028), lower septal a' (p = 0.019) and s' (p = 0.023), compared to Group II. Independent predictors of 6-MWT distance for the group as a whole were increased MLHFQ total score (p = 0.005), older age (p = 0.035), and diabetes (p = 0.045), in HFpEF were total MLHFQ (p = 0.007) and diabetes (p = 0.045) but in HFrEF were only LA enlargement (p = 0.005) and age (p = 0.013. A total MLHFQ score of 48.5 had a sensitivity of 67% and specificity of 63% (AUC on ROC analysis of 72%) for limited exercise performance in HF patients. CONCLUSIONS: Quality of life, assessment by MLHFQ, is the best correlate of exercise capacity measured by 6 MWT, particularly in HFpEF patients. Despite worse ejection fraction in HFrEF, signs of raised LA pressure independently determine exercise capacity in these patients. PMID- 29041913 TI - Detrimental effects of specific Periodontopathic bacterial infection on tachyarrhythmia compared to Bradyarrhythmia. AB - BACKGROUND: Tachyarrhythmia (TA) and bradyarrhythmia (BA) are cardiac rhythm disorders that result in the decline of quality of life. While patients with periodontitis are at a high risk of cardiovascular disease (CVD), little causal information between TA and BA has been provided to date. To assess the relationship, periodontal bacterial infection in patients with TA or BA was evaluated. METHODS: The subjects were patients with TA (n = 98) or BA (n = 40) who attended Tokyo Medical and Dental University hospital. Periodontal and blood examinations were performed. Periodontopathic bacterial existence in saliva was evaluated. RESULTS: We found that specific periodontopathic bacteria, Porphyromonas gingivalis and Prevotella intermedia, were highly detected in saliva from TA patients compared to BA subjects. The rates of hypertension and dyslipidemia were comparable between the two groups. CONCLUSION: Specific periodontal bacterial infection might affect TA progression. PMID- 29041915 TI - Cost-effectiveness analysis of XELOX versus XELOX plus bevacizumab for metastatic colorectal cancer in a public hospital school. AB - BACKGROUND: Metastatic colorectal cancer imposes a substantial burden on patients and society. Over the last years, progresses in the treatment have been made especially due to the introduction of monoclonal antibodies, such as bevacizumab which, on the other hand, has considerably increased the costs of treatment. We performed a cost-effectiveness analysis of bevacizumab plus XELOX in comparison with XELOX alone in metastatic colorectal cancer in first-line therapy, from the perspective of a public hospital school in Brazil. METHODS: This was a cost effectiveness analysis performed by a decision tree and Markov models. Costs were expressed in local currency and outcomes were expressed in months of life gained. The model was constructed using the TreeAge Pro 2013(r) software. RESULTS: The incremental difference in years of life gained was 2.25 months, with an extra cost of 47,833.57 BRL, resulting in an incremental cost-effectiveness of 21,231.43 BRL per month of life gained. CONCLUSIONS: Although the XELOX plus bevacizumab regimen is a more expensive and more effective treatment than XELOX, it does not fit the reimbursement values fixed by the public healthcare system in Brazil. PMID- 29041914 TI - Analysis of the genome of the New Zealand giant collembolan (Holacanthella duospinosa) sheds light on hexapod evolution. AB - BACKGROUND: The New Zealand collembolan genus Holacanthella contains the largest species of springtails (Collembola) in the world. Using Illumina technology we have sequenced and assembled a draft genome and transcriptome from Holacanthella duospinosa (Salmon). We have used this annotated assembly to investigate the genetic basis of a range of traits critical to the evolution of the Hexapoda, the phylogenetic position of H. duospinosa and potential horizontal gene transfer events. RESULTS: Our genome assembly was ~375 Mbp in size with a scaffold N50 of ~230 Kbp and sequencing coverage of ~180*. DNA elements, LTRs and simple repeats and LINEs formed the largest components and SINEs were very rare. Phylogenomics (370,877 amino acids) placed H. duospinosa within the Neanuridae. We recovered orthologs of the conserved sex determination genes thought to play a role in sex determination. Analysis of CpG content suggested the absence of DNA methylation, and consistent with this we were unable to detect orthologs of the DNA methyltransferase enzymes. The small subunit rRNA gene contained a possible retrotransposon. The Hox gene complex was broken over two scaffolds. For chemosensory ability, at least 15 and 18 ionotropic glutamate and gustatory receptors were identified, respectively. However, we were unable to identify any odorant receptors or their obligate co-receptor Orco. Twenty-three chitinase-like genes were identified from the assembly. Members of this multigene family may play roles in the digestion of fungal cell walls, a common food source for these saproxylic organisms. We also detected 59 and 96 genes that blasted to bacteria and fungi, respectively, but were located on scaffolds that otherwise contained arthropod genes. CONCLUSIONS: The genome of H. duospinosa contains some unusual features including a Hox complex broken over two scaffolds, in a different manner to other arthropod species, a lack of odorant receptor genes and an apparent lack of environmentally responsive DNA methylation, unlike many other arthropods. Our detection of candidate horizontal gene transfer candidates confirms that this phenomenon is occurring across Collembola. These findings allow us to narrow down the regions of the arthropod phylogeny where key innovations have occurred that have facilitated the evolutionary success of Hexapoda. PMID- 29041916 TI - Early coordinated rehabilitation in acute phase after hip fracture - a model for increased patient participation. AB - BACKGROUND: Studies have shown that patients with hip fracture treated in a Comprehensive Geriatric Care (CGC) unit report better results in comparison to orthopaedic care. Furthermore, involving patients in their healthcare by encouraging patient participation can result in better quality of care and improved outcomes. To our knowledge no study has been performed comparing rehabilitation programmes within a CGC unit during the acute phase after hip fracture with focus on improving patients' perceived participation and subsequent effect on patients' function. METHODS: A prospective, controlled, intervention performed in a CGC unit and compared with standard care. A total of 126 patients with hip fracture were recruited who were prior to fracture; community dwelling, mobile indoors and independent in personal care. Intervention Group (IG): 63 patients, mean age 82.0 years and Control Group (CG): 63 patients mean age 80.5 years. INTERVENTION: coordinated rehabilitation programme with early onset of patient participation and intensified occupational therapy and physiotherapy after hip fracture surgery. The primary outcome measure was self-reported patient participation at discharge. Secondary outcome measures were: TLS-BasicADL; Bergs Balance Scale (BBS); Falls Efficacy Scale FES(S); Short Physical Performance Battery (SPPB) and Timed Up and Go (TUG) at discharge and 1 month and ADL staircase for instrumental ADL at 1 month. RESULTS: At discharge a statistically significant greater number of patients in the IG reported higher levels of participation (p < 0.05) and independence in lower body hygiene (p < 0.05) and dressing (p < 0.001). There were however no statistically significant differences at discharge and 1 month between groups in functional balance and confidence, performance measures or risk for falls. CONCLUSION: This model of OT and PT coordinated inpatient rehabilitation had a positive effect on patients' perceived participation in their rehabilitation and ADL at discharge but did not appear to affect level of recovery or risk for future falls at 1 month. A large proportion of patients remained at risk for future falls at 1 month in both groups highlighting the need for continued rehabilitation after discharge. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03301584 (Retrospectively registered: 4th October 2017). PMID- 29041917 TI - Locally epistatic models for genome-wide prediction and association by importance sampling. AB - BACKGROUND: In statistical genetics, an important task involves building predictive models of the genotype-phenotype relationship to attribute a proportion of the total phenotypic variance to the variation in genotypes. Many models have been proposed to incorporate additive genetic effects into prediction or association models. Currently, there is a scarcity of models that can adequately account for gene by gene or other forms of genetic interactions, and there is an increased interest in using marker annotations in genome-wide prediction and association analyses. In this paper, we discuss a hybrid modeling method which combines parametric mixed modeling and non-parametric rule ensembles. RESULTS: This approach gives us a flexible class of models that can be used to capture additive, locally epistatic genetic effects, gene-by-background interactions and allows us to incorporate one or more annotations into the genomic selection or association models. We use benchmark datasets that cover a range of organisms and traits in addition to simulated datasets to illustrate the strengths of this approach. CONCLUSIONS: In this paper, we describe a new strategy for incorporating genetic interactions into genomic prediction and association models. This strategy results in accurate models, with sometimes significantly higher accuracies than that of a standard additive model. PMID- 29041918 TI - The diagnostic value of pepsin detection in saliva for gastro-esophageal reflux disease: a preliminary study from China. AB - BACKGROUND: None of current diagnostic methods has been proven to be a reliable tool for gastro-esophageal reflux disease (GERD). Pepsin in saliva has been proposed as a promising diagnostic biomarker for gastro-esophageal reflux. We aimed to determine the diagnostic value of salivary pepsin detection for GERD. METHODS: Two hundred and fifty patients with symptoms suggestive of GERD and 35 asymptomatic healthy volunteers provided saliva on morning waking, after lunch and dinner for pepsin determination using the Peptest lateral flow device. All patients underwent 24-h multichannel intraluminal impedance pH (24-h MII-pH) monitoring and upper gastrointestinal endoscopy. Based on 24-h MII-pH and endoscopy study, patients were defined as GERD (abnormal MII-pH results and/or reflux esophagitis) and non-GERD otherwise. RESULTS: Patients with GERD had a higher prevalence of pepsin in saliva and higher pepsin concentration than patients with non-GERD and healthy controls (P < 0.001 for all). The pepsin test had a sensitivity of 73% and a specificity of 88.3% for diagnosing GERD using the optimal cut-off value of 76 ng/mL. Postprandial saliva samples collected when the symptoms occurred had a more powerful ability to identify GERD. CONCLUSIONS: Salivary pepsin test had moderate diagnostic value for GERD. It may be a promising tool to replace the use of currently invasive tools with advantages of non-invasive, easy to perform and cost effective. TRIAL REGISTRATION: ChiCTR-DDD 16009506 (date of registration: October 20, 2016). PMID- 29041920 TI - Intraoperative continuous cerebral microcirculation measurement in patients with aneurysmal subarachnoid hemorrhage: preliminary data on the early administration of magnesium sulfate. AB - BACKGROUND: In patients with subarachnoid hemorrhage (SAH), vasospasm remains one of the major complications. The application of intravenous magnesium sulfate (MgSO4) has been under discussion to prevent cerebral ischemia. Our aim was to examine the impact of early MgSO4 administration on local cerebral microcirculation during microsurgical clipping of SAH-related aneurysms. METHODS: The non-invasive laser-Doppler spectrophotometry system "Oxygen-to-See (O2C)" was used in 14 consecutive patients (11 female, 3 male, median age 56.5+/-9.7 yrs) with aneurysmatic SAH. A subdural probe measured capillary venous oxygenation (SO2), relative hemoglobin content (rHb), blood cell velocity (velo) and blood flow (flow) in 7 mm tissue depth. Data samples were recorded as baseline immediately before intraoperative application of MgSO4 10% 50 mg/kg body weight and 10 min thereafter. The continuous MgSO4 infusion rate depended on blood pressure (mean arterial pressure > 60-65 mmHg) and lasted a maximum of 60 min. RESULTS: MgSO4 was administered 2.8 (min. 1.6, max. 15.5) hours after onset of symptoms. Median flow increased significantly by 20.8% (5-68%, p = 0.001). Velo increased 4.9% (1-17%), rHb decreased 1.5% (3-34%) and SO2 decreased 9.4% (8-38%) by trend compared to the baseline values. FiO2 correlated positively with velo (rs = 0.712, p = 0.004), whereas arterial HCO3 correlated negatively with SO2 (rs = -0.599, p = 0.024). Of 14 patients, 2 had symptomatic vasospasm. CONCLUSIONS: Our data suggest an increased cerebral blood flow after early intraoperative administration of MgSO4 in patients with SAH. Using a non-invasive laser-Doppler spectrophotometry system, this technique is feasible for continuous real-time monitoring of cerebral microcirculation. TRIAL REGISTRATION: DRKS (German Clinical Trial Registry), DRKS00013047 , retrospectively registered on September 21st, 2017. PMID- 29041919 TI - Preparing for the unexpected: special considerations and complications after sugammadex administration. AB - Sugammadex, a modified gamma-cyclodextrin, has changed clinical practice of neuromuscular reversal dramatically. With the introduction of this selective relaxant binding agent, rapid and reliable neuromuscular reversal from any depth of block became possible. Sugammadex can reverse neuromuscular blockade without the muscarinic side effects typically associated with the administration of acetylcholinesterase inhibitors. However, what remained unchanged is the incidence of residual neuromuscular blockade. It is known that sugammadex cannot always prevent its occurrence, if appropriate dosing is not chosen based on the level of neuromuscular paralysis prior to administration determined by objective neuromuscular monitoring. Alternatively, excessive doses of sugammadex administered in an attempt to ensure full and sustained reversal may affect the effectiveness of rocuronium in case of immediate reoperation or reintubation. In such emergent scenarios that require onset of rapid and reliable neuromuscular blockade, the summary of product characteristics (package insert) recommends using benzylisoquinolinium neuromuscular blocking agents or a depolarizing agent. However, if rapid intubation is required, succinylcholine has a significant number of side effects, and benzylisoquinolinium agents may not have the rapid onset required. Therefore, prior administration of sugammadex introduces a new set of potential problems that require new solutions. This novel reversal agent thus presents new challenges and anesthesiologists must familiarize themselves with specific issues with its use (e.g., bleeding risk, hypermagnesemia, hypothermia). This review will address sugammadex administration in such special clinical situations. PMID- 29041921 TI - Perioperative management of paraganglioma and catecholamine-induced cardiomyopathy in child- a case report and review of the literature. AB - BACKGROUND: Paragangliomas are catecholamine-secreting tumors of the paraganglia. Perioperative mortality of children with paraganglioma is high, but preoperative therapy and anesthetic management of paraganglioma resection are controversial in children. The literatures on catecholamine-induced cardiomyopathy are limited to several case reports,with few reports of studies on children. CASE PRESENTATION: Here we report the anesthetic management of a child with paraganglioma and catecholamine-induced cardiomyopathy, and the possible perioperative anesthesia problems of the paraganglioma resection are discussed. CONCLUSION: Preoperative and intraoperative anesthetic management of Pheochromocytomas children should follow the same principles as for adults, The most important aspects are the control of blood pressure liability and maintenance of adequate blood volume. Pheochromocytomas patient may have cardiomoyopathy due to myocardial toxicity of excessive circulating catecholamines level. The perioperative management of catecholamine-induced cardiomyopathy should include lowering sympathetic activation by means of alpha-and beta-adrenergic receptor blocker and diuretics administration in case of volume overload. PMID- 29041922 TI - Institute collection and analysis of Nanobodies (iCAN): a comprehensive database and analysis platform for nanobodies. AB - BACKGROUND: Nanobodies are single-domain antibodies that contain the unique structural and functional properties of naturally-occurring heavy chain in camelidae. As a novel class of antibody, they show many advantages compared with traditional antibodies such as smaller size, higher stability, improved specificity, more easily expressed in microorganisms. These unusual hallmarks make them as promising tools in basic research and clinical practice. Although thousands of nanobodies are known to be published, no single database provides searchable, unified annotation and integrative analysis tools for these various nanobodies. RESULTS: Here, we present the database of Institute Collection and Analysis of Nanobodies (iCAN). It is built for the aim that addressing the above gap to expand and accelerate the nanobody research. iCAN, as the first database of nanobody, contains the most comprehensive information to date on nanobodies and related antigens. So far, iCAN incorporates 2391 entries which include 2131 from patents and 260 from publications and provides a simple user interface for researchers to retrieve and view the detailed information of nanobodies. In addition to the data collection, iCAN also provides online bioinformatic tools for sequence analysis and characteristic feature extraction. CONCLUSIONS: In summary, iCAN enables researchers to analyze nanobody features and explore the applications of nanobodies more efficiently. iCAN is freely available at http://ican.ils.seu.edu.cn . PMID- 29041923 TI - Fetal heart rate abnormalities during and after external cephalic version: Which fetuses are at risk and how are they delivered? AB - BACKGROUND: Fetal heart rate abnormalities (FHR) during and after external cephalic version (ECV) are relatively frequent. They may raise concern about fetal wellbeing. Only occasionally they may lead to an emergency cesarean section. METHODS: Prospective cohort study in 980 women (> 34 weeks gestation) with a singleton fetus in breech presentation. During and after external cephalic version (ECV) FHR abnormalities were recorded. Obstetric variables and delivery outcome were evaluated. Primary outcome was to identify which fetuses are at risk for FHR abnormalities. Secondary outcome was to identify a possible relationship between FHR abnormalities during and after ECV and mode of delivery and fetal distress during subsequent labor. RESULTS: The overall success rate of ECV was 60% and in 9% of the attempts there was an abnormal FHR pattern. In two cases FHR abnormalities after ECV led to an emergency CS. Estimated fetal weight per 100 g (OR 0.90, CI: 0.87-0.94) and longer duration of the ECV-procedure (OR 1.13, CI: 1.05-1.21) were factors significantly associated with the occurrence of FHR abnormalities. FHR abnormalities were not associated with the mode of delivery or the occurrence of fetal distress during subsequent labor. CONCLUSIONS: FHR abnormalities during and after ECV are more frequent with lower estimated fetal weight and longer duration of the procedure. FHR abnormalities during and after ECV have no consequences for subsequent mode of delivery. They do not predict whether fetal distress will occur during labor. TRIAL REGISTRATION: The Eindhoven Breech Intervention Study, NCT00516555 . Date of registration: August 13, 2007. PMID- 29041924 TI - The value of repeat radial-probe endobronchial ultrasound-guided transbronchial biopsy after initial non-diagnostic results in patients with peripheral pulmonary lesions. AB - BACKGROUND: Radial-probe endobronchial ultrasound (rEBUS)-guided transbronchial biopsy (TBB) is invaluable in the diagnosis of peripheral pulmonary lesions (PPLs); however, in certain instances, the procedure has to be repeated because of initial non-diagnostic procedure(s). Little if any literature has been published on this issue. Therefore, the aim of this study was to investigate the utility of repeat rEBUS-guided TBB in achieving a definitive diagnosis of PPLs. METHODS: All patients who underwent rEBUS-guided TBB of PPLs at National Taiwan University Hospital between 2011 and 2015 and had a repeat procedure after non diagnostic initial procedures were identified as the study subjects. The primary outcome of interest was the diagnostic yield of repeat rEBUS-guided TBB for PPLs. Also, we sought to discover features associated with the yield of repeat procedures. RESULTS: Forty-three (11%) out of 384 patients with initial non diagnostic TBB were included for analysis. A diagnosis of PPLs was able to be confirmed with repeat TBB in 23(53%) patients. The pathology of the first TBB was significantly associated with the yield of repeat procedures (P = 0.011). Further, patients with normal lung tissue in initial pathology rarely (2/12, 17%) had a definite diagnosis on repeat TBB. Yet, patients with pathology showing atypical cells and other non-specific findings were more likely (21/31, 68%) to obtain a confirmed diagnosis. The diagnostic yield of repeat procedures was not affected by the size, location or CT appearance of the lesions, or position of the rEBUS probe. No death or other serious adverse events occurred with the repeat rEBUS-guided procedures. CONCLUSIONS: If clinically indicated, it is reasonable to repeat rEBUS-guided TBB after an initial non-diagnostic procedure as the diagnostic yield will be at least 50% and the side effect profile is favorable. PMID- 29041925 TI - Correction to: Socioeconomic inequalities in smoking habits are still increasing in Italy. PMID- 29041926 TI - Prevalence and factors associated with intestinal parasites among food handlers of food and drinking establishments in Aksum Town, Northern Ethiopia. AB - BACKGROUND: Various epidemiological studies indicate that the prevalence of intestinal parasites is high in developing countries and those parasites are major public health importance in Sub-Saharan Africa. Their distribution is mainly associated with poor personal hygiene, environmental sanitation and lack of access to clean water. This study was conducted to estimate the prevalence of intestinal parasitic infection and identify factors associated with intestinal parasitic infection among food handlers in the Aksum Town of Tigray Regional State, North Ethiopia. METHODS: A cross-sectional study design was used among 400 randomly selected food handlers who were selected as respondents. Data were collected by face to face interviewer administered questionnaire supplemented with observational checklist. Fresh stool samples were collected from respondents and were examined microscopically for the presence of any of intestinal parasites using standard laboratory methods. Multivariable logistic regression model using Adjusted Odds Ratio (AOR) and 95% Confidence Interval (CI) was fitted to analyze the independent predictors of intestinal parasitic infections. RESULT: The mean age of the food handlers included in this study was 26.0 years. Of the total respondents, 72.5% were females, 63% have completed at least secondary school educational level. Five species of Intestinal Parasites (IPs) were identified. The overall prevalence of being infected with at least one intestinal parasite was 14.5%, 95% CI (11.3, 18.0). The odds of being positive for at least one intestinal parasitic infection was 12.3 times higher among food handlers who practice medical checkup every 9 months compared to those who have a medical checkup every 3 months. The odds of being positive for intestinal parasitic infection was 3 times higher among food handlers with no formal education compared to those who have a level of education secondary school and above. Food handlers who received food hygiene and safety training were 66% less likely to be positive for at least one intestinal parasitic infection as compared to those who did not receive training. CONCLUSION: Prevalence of parasitic infection among food handlers observed in the current study is relatively low but is still a public health importance. Number of medical checkup, training in food hygiene and safety, feedback from customers and level of education were significantly associated with reduced odds of being infected with parasitic infection. Hence, these factors should be focused by policy makers and implementers to further bring the prevalence below the level of public health importance. PMID- 29041927 TI - Diagnostic performance of the loop-mediated isothermal amplification (LAMP) based illumigene(r) malaria assay in a non-endemic region. AB - BACKGROUND: Light microscopy and antigen-based rapid diagnostic tests are the primary diagnostic tools for detecting malaria, although being labour-intensive and frequently challenged by lack of personnel's experience and low levels of parasite density. The latter being especially important in non-endemic settings. Novel molecular techniques aim to overcome this drawback. The objective of this study was to assess the diagnostic performance of the illumigene malaria assay(r) (Meridian Bioscience) compared to microscopy, RDT and real-time PCR. This loop mediated isothermal amplification (LAMP) assay is a qualitative in vitro diagnostic test for the direct detection of Plasmodium spp. DNA in human venous whole blood samples. METHODS: The illumigene assay was assessed on a retrospective panel of stored blood samples (n = 103) from returned travellers and external quality control samples (n = 12). Additionally the assay was prospectively assessed on 30 fresh routine samples with a request for malaria diagnosis. The illumigene assay was compared to microscopy, RDT and Plasmodium species specific real-time PCR. RESULTS: In the retrospective evaluation, the illumigene assay showed 100% agreement with the real-time PCR, RDT and microscopy yielding a sensitivity and specificity of 100% (95% CI 95.1-100% and 89.7-100%, respectively). Seven samples from patients recently treated for Plasmodium falciparum infection that were RDT positive and microscopy negative yielded positive test results. The performance of the illumigene assay equals that of microscopy combined with RDT in the prospective panel with three false negative RDT results and one false negative microscopy result. Excellent concordance with PCR was observed. The limit of detection of the assay approached 0.5 parasites/uL for both P. falciparum and Plasmodium vivax. CONCLUSION: In non-endemic regions where the diagnostic process for malaria infections is questioned by lack of experience and low levels of parasite densities, the illumigene assay can be of value. Due to its high sensitivity, the LAMP assay may be considered as primary diagnostic test. The results of this study indicate that negative screen results do not need further confirmation. However, before implementation, this approach needs to be confirmed in larger, prospective studies. A shortcoming of this assay is that no species identification nor determination of parasite density are possible. PMID- 29041928 TI - The TLR3/TICAM-1 signal constitutively controls spontaneous polyposis through suppression of c-Myc in Apc Min/+ mice. AB - BACKGROUND: Intestinal tumorigenesis is promoted by myeloid differentiation primary response gene 88 (MyD88) activation in response to the components of microbiota in Apc Min/+ mice. Microbiota also contains double-stranded RNA (dsRNA), a ligand for TLR3, which activates the toll-like receptor adaptor molecule 1 (TICAM-1, also known as TRIF) pathway. METHODS: We established Apc Min/+ Ticam1 -/- mice and their survival was compared to survival of Apc Min/+ Myd88 -/- and wild-type (WT) mice. The properties of polyps were investigated using immunofluorescence staining and RT-PCR analysis. RESULTS: We demonstrate that TICAM-1 is essential for suppression of polyp formation in Apc Min/+ mice. TICAM-1 knockout resulted in shorter survival of mice compared to WT mice or mice with knockout of MyD88 in the Apc Min/+ background. Polyps were more frequently formed in the distal intestine of Apc Min/+ Ticam1 -/- mice than in Apc Min/+ mice. Infiltration of immune cells such as CD11b+ and CD8alpha+ cells into the polyps was detected histologically. CD11b and CD8alpha mRNAs were increased in polyps of Apc Min/+ Ticam1 -/- mice compared to Apc Min/+ mice. Gene expression of inducible nitric oxide synthase (iNOS), interferon (IFN)-gamma, CXCL9 and IL 12p40 was increased in polyps of Apc Min/+ Ticam1 -/- mice. mRNA and protein expression of c-Myc, a critical transcription factor for inflammation-associated polyposis, were increased in polyps of Apc Min/+ Ticam1 -/- mice. A Lactobacillus strain producing dsRNA was detected in feces of Apc Min/+ mice. CONCLUSION: These results imply that the TLR3/TICAM-1 pathway inhibits polyposis through suppression of c-Myc expression and supports long survival in Apc Min/+ mice. PMID- 29041929 TI - Absence of Plasmodium inui and Plasmodium cynomolgi, but detection of Plasmodium knowlesi and Plasmodium vivax infections in asymptomatic humans in the Betong division of Sarawak, Malaysian Borneo. AB - BACKGROUND: Plasmodium knowlesi, a simian malaria parasite, has become the main cause of malaria in Sarawak, Malaysian Borneo. Epidemiological data on malaria for Sarawak has been derived solely from hospitalized patients, and more accurate epidemiological data on malaria is necessary. Therefore, a longitudinal study of communities affected by knowlesi malaria was undertaken. METHODS: A total of 3002 blood samples on filter paper were collected from 555 inhabitants of 8 longhouses with recently reported knowlesi malaria cases in the Betong Division of Sarawak, Malaysian Borneo. Each longhouse was visited bimonthly for a total of 10 times during a 21-month study period (Jan 2014-Oct 2015). DNA extracted from blood spots were examined by a nested PCR assay for Plasmodium and positive samples were then examined by nested PCR assays for Plasmodium falciparum, Plasmodium vivax, Plasmodium malariae, Plasmodium ovale, Plasmodium knowlesi, Plasmodium cynomolgi and Plasmodium inui. Blood films of samples positive by PCR were also examined by microscopy. RESULTS: Genus-specific PCR assay detected Plasmodium DNA in 9 out of 3002 samples. Species-specific PCR identified 7 P. knowlesi and one P. vivax. Malaria parasites were observed in 5 thick blood films of the PCR positive samples. No parasites were observed in blood films from one knowlesi-, one vivax- and the genus-positive samples. Only one of 7 P. knowlesi-infected individual was febrile and had sought medical treatment at Betong Hospital the day after sampling. The 6 knowlesi-, one vivax- and one Plasmodium-infected individuals were afebrile and did not seek any medical treatment. CONCLUSIONS: Asymptomatic human P. knowlesi and P. vivax malaria infections, but not P. cynomolgi and P. inui infections, are occurring within communities affected with malaria. PMID- 29041930 TI - Renal cell -like carcinoma of the nasal cavity: a case report and review of the literature. AB - BACKGROUND: Sinonasal renal cell-like carcinoma (SRCLC) is an extremely rare low malignant tumor arising in the sinonasal tract, with histological mimicry of renal cell carcinoma. CASE PRESENTATION: We present a case of sinonasal renal cell-like carcinoma in a 63-year-old male patient. Computer tomography(CT) scanning revealed a soft tissue mass at the left nasal cavity and choana. Histologically, the predominant tumor architecture was follicular to glandular with intervening fibrous septa. The tumor cells were uniform cuboidal to polyhedral with abundant clear or eosinophilic cytoplasm. Immunohistochemically, the tumor cells were strongly positive for CK7, EMA, vimentin, SOX10, S-100, and focally positive for CA9. During 6 months of follow-up, there was no clinical or radiological evidence of recurrence or metastasis. CONCLUSION: SRCLC has microscopic features which overlap with tumors that contain clear cells. Thus, several other tumors must be considered in the differential diagnosis of a tumor of the sinonasal region with clear cells, especially metastatic renal clear cell carcinoma. SRCLC is an indolent tumor and none of the reported SRCLC patients had metastatic disease. PMID- 29041931 TI - Reprogramming of stromal fibroblasts by SNAI2 contributes to tumor desmoplasia and ovarian cancer progression. AB - BACKGROUND: Molecular profiling in ovarian cancer (OC) revealed that the desmoplasia subtype presented the poorest prognosis, highlighting the contribution of stromal fibroblasts in tumor progression. This study aimed to investigate the molecular characteristics of SNAI2 driving the transcriptional reprogramming of fibroblasts within tumors. METHODS: SNAI2 expression was evaluated in microdissected profiles of various cancers and in various molecular subtypes of OC. Gene set enrichment analysis (GSEA) and single sample GSEA (ssGSEA) were performed to explore the correlation between SNAI2 and stromal fibroblast activation. The SNAI2 defined signature in the mesenchymal OC subtype was identified through an integrative analysis of the TCGA and the Tothill datasets. The predictive value of this signature was validated in independent datasets. SNAI2 expression alteration influence of tumor growth in primary CAFs was evaluated in 3D organotypic and murine xenograft models. RESULTS: We demonstrated that SNAI2 was frequently activated in the tumor stroma, correlated with fibroblast activation and worse patient outcome in OC. SNAI2 transformed normal fibroblasts to a CAF-like state and boosted their tumor-supporting role in 3D organotypic culture and in OC xenograft model. SNAI2 drove a transcriptional signature in the mesenchymal subtype of OC that contributed to tumor desmoplasia, which fed back to increase SNAI2 expression and sustain fibroblast activation. CONCLUSIONS: Our results address the role of SNAI2 in reprogramming stromal fibroblasts. The identified SNAI2 mesenchymal signature has both a predictive value and biological relevance and might be a therapeutic target for stroma oriented therapy against the desmoplasia OC subtype. PMID- 29041932 TI - STAMPS: development and verification of swallowing kinematic analysis software. AB - BACKGROUND: Swallowing impairment is a common complication in various geriatric and neurodegenerative diseases. Swallowing kinematic analysis is essential to quantitatively evaluate the swallowing motion of the oropharyngeal structures. This study aims to develop a novel swallowing kinematic analysis software, called spatio-temporal analyzer for motion and physiologic study (STAMPS), and verify its validity and reliability. METHODS: STAMPS was developed in MATLAB, which is one of the most popular platforms for biomedical analysis. This software was constructed to acquire, process, and analyze the data of swallowing motion. The target of swallowing structures includes bony structures (hyoid bone, mandible, maxilla, and cervical vertebral bodies), cartilages (epiglottis and arytenoid), soft tissues (larynx and upper esophageal sphincter), and food bolus. Numerous functions are available for the spatiotemporal parameters of the swallowing structures. Testing for validity and reliability was performed in 10 dysphagia patients with diverse etiologies and using the instrumental swallowing model which was designed to mimic the motion of the hyoid bone and the epiglottis. RESULTS: The intra- and inter-rater reliability tests showed excellent agreement for displacement and moderate to excellent agreement for velocity. The Pearson correlation coefficients between the measured and instrumental reference values were nearly 1.00 (P < 0.001) for displacement and velocity. The Bland-Altman plots showed good agreement between the measurements and the reference values. CONCLUSIONS: STAMPS provides precise and reliable kinematic measurements and multiple practical functionalities for spatiotemporal analysis. The software is expected to be useful for researchers who are interested in the swallowing motion analysis. PMID- 29041933 TI - Silence sexual and reproductive health discussions and we fuel the rise of HIV/AIDS in sub-Saharan Africa. AB - In the mid 1990s, the HIV epidemic was initially impacting South Africa. Fear, stigma and denial surrounding sexual practices undermined treatment access and prevention initiatives. Significant strides have been made in reducing the HIV epidemic in South Africa and other areas in sub-Saharan Africa through effective programming and funding of prevention programs. Reinstatement of the Mexico City Policy threatens to negatively impact gains made in the HIV/AIDS community. Recognition that communication is essential to effective reproductive health and HIV/AIDS programming needs to be recognized by politicians enacting the Mexico City Policy and the possibility of viewing a rise in HIV/AIDS incidence in sub Saharan Africa. PMID- 29041934 TI - H syndrome: 5 new cases from the United States with novel features and responses to therapy. AB - BACKGROUND: H Syndrome is an autosomal recessive disorder characterized by cutaneous hyperpigmentation, hypertrichosis, and induration with numerous systemic manifestations. The syndrome is caused by mutations in SLC29A3, a gene located on chromosome 10q23, which encodes the human equilibrative transporter 3 (hENT3). Less than 100 patients with H syndrome have been described in the literature, with the majority being of Arab descent, and only a few from North America. CASE PRESENTATION: Here we report five pediatric patients from three medical centers in the United States who were identified to have H syndrome by whole exome sequencing. These five patients, all of whom presented to pediatric rheumatologists prior to diagnosis, include two of Northern European descent, bringing the total number of Caucasian patients described to three. The patients share many of the characteristics previously reported with H syndrome, including hyperpigmentation, hypertrichosis, short stature, insulin-dependent diabetes, arthritis and systemic inflammation, as well as some novel features, including selective IgG subclass deficiency and autoimmune hepatitis. They share genetic mutations previously described in patients of the same ethnic background, as well as a novel mutation. In two patients, treatment with prednisone improved inflammation, however both patients flared once prednisone was tapered. In one of these patients, treatment with tocilizumab alone resulted in marked improvement in systemic inflammation and growth. The other had partial response to prednisone, azathioprine, and TNF inhibition; thus, his anti-TNF biologic was recently switched to tocilizumab due to persistent polyarthritis. Another patient improved on Methotrexate, with further improvement after the addition of tocilizumab. CONCLUSION: H syndrome is a rare autoinflammatory syndrome with pleiotropic manifestations that affect multiple organ systems and is often mistaken for other conditions. Rheumatologists should be aware of this syndrome and its association with arthritis. It should be considered in patients with short stature and systemic inflammation, particularly with cutaneous findings. Some patients respond to treatment with biologics alone or in combination with other immune suppressants; in particular, treatment of systemic inflammation with IL-6 blockade appears to be promising. Overall, better identification and understanding of the pathophysiology may help devise earlier diagnosis and better treatment strategies. PMID- 29041935 TI - A long non-coding RNA HOTTIP expression is associated with disease progression and predicts outcome in small cell lung cancer patients. AB - BACKGROUND: Despite progress in treatment of small cell lung cancer (SCLC), the biology of the tumor still remains poorly understood. Recently, we globally investigated the contributions of lncRNA in SCLC with a special focus on sponge regulatory network. Here we report lncRNA HOTTIP, which is specifically amplified in SCLC, is associated with SCLC proliferation and poor prognosis of patients. METHODS: RT-qPCR was used to investigate the expression of HOTTIP in SCLC tissues and cell lines. The role of HOTTIP in SCLC cell proliferation was demonstrated by CCK8 assay, colony formation assay, flow cytometry analysis and in vivo SCLC xenograft model in nude mice through HOTTIP loss- and gain-of-function effects. Western blot assay was used to evaluate gene expression in cell lines at protein level. RNA pull-down, Mass spectrometry and RNA binding protein immunoprecipitation (RIP) were performed to confirm the molecular mechanism of HOTTIP involved in SCLC progression. RESULTS: We found that HOTTIP was overexpressed in SCLC tissues, and its expression was correlated with the clinical stage and the shorter survival time of SCLC patients. Moreover, HOTTIP knockdown could impair cell proliferation, affect the cell cycle and inhibit tumor growth of mice, while HOTTIP overexpression might enhance cell proliferation and cell cycle in vitro and in vivo. Mechanistic investigations showed that HOTTIP functions as an oncogene in SCLC progression by sponging miR 574-5p and affecting the expression of polycomb group protein EZH1. CONCLUSIONS: Overall, we identified that HOTTIP was involved in SCLC tumorigenesis through the ceRNA network "HOTTIP/miR-574-5p/EZH1". Our findings not only illuminate how HOTTIP confers an oncogenic function in SCLC pathogenesis, but also underscore a novel gene expression governing hallmarks in the disease. PMID- 29041936 TI - Pathways to increased coverage: an analysis of time trends in contraceptive need and use among adolescents and young women in Kenya, Rwanda, Tanzania, and Uganda. AB - BACKGROUND: Despite efforts to make contraceptive services more "youth friendly," unmet need for contraception among young women in sub-Saharan Africa remains high. For health systems to effectively respond to the reproductive health needs of a growing youth population, it is imperative to understand their contraceptive needs and service seeking practices. This paper describes changes over time in contraceptive need, use, and sources of care among young women in four East African countries. METHODS: We used three rounds of DHS data from Kenya, Rwanda, Tanzania, and Uganda to examine time trends from 1999 to 2015 in met need for modern contraception, method mix, and source of care by sector (public or private) and type of provider among young women aged 15-24 years. We assessed disparities in contraceptive coverage improvements over time between younger (15 24 years) and older women (25-49 years) using a difference-in-differences approach. RESULTS: Met need for contraception among women aged 15-24 years increased over time, ranging from a 20% increase in Tanzania to more than a 5 fold increase in Rwanda. Improvements in met need were greater among older women compared to younger women in Rwanda and Uganda, and higher among younger women in Kenya. Injectables have become the most popular contraceptive choice among young women, with more than 50% of modern contraceptive users aged 15-24 years currently using the method in all countries except for Tanzania, where condoms and injectables are used by 38% and 35% of young users, respectively. More than half of young women in Tanzania and Uganda receive contraceptives from the private sector; however, while the private sector played an important role in meeting the growing contraceptive needs among young women in Tanzania, increased use of public sector services drove expanded access in Kenya, Rwanda, and Uganda. CONCLUSIONS: Our study shows that contraceptive use increased among young East African women, yet, unmet need remains high. As youth populations continue to grow, governments must develop more targeted strategies for expanding access to reproductive health services for young women. Engaging the private sector and task-shifting to lower-level providers offer promising approaches; however, additional research is needed to identify the key facilitators and barriers to the success of these strategies in different contexts. PMID- 29041937 TI - Biocompatible coated magnetosome minerals with various organization and cellular interaction properties induce cytotoxicity towards RG-2 and GL-261 glioma cells in the presence of an alternating magnetic field. AB - BACKGROUND: Biologics magnetics nanoparticles, magnetosomes, attract attention because of their magnetic characteristics and potential applications. The aim of the present study was to develop and characterize novel magnetosomes, which were extracted from magnetotactic bacteria, purified to produce apyrogen magnetosome minerals, and then coated with Chitosan, Neridronate, or Polyethyleneimine. It yielded stable magnetosomes designated as M-Chi, M-Neri, and M-PEI, respectively. Nanoparticle biocompatibility was evaluated on mouse fibroblast cells (3T3), mouse glioblastoma cells (GL-261) and rat glioblastoma cells (RG-2). We also tested these nanoparticles for magnetic hyperthermia treatment of tumor in vitro on two tumor cell lines GL-261 and RG-2 under the application of an alternating magnetic field. Heating, efficacy and internalization properties were then evaluated. RESULTS: Nanoparticles coated with chitosan, polyethyleneimine and neridronate are apyrogen, biocompatible and stable in aqueous suspension. The presence of a thin coating in M-Chi and M-PEI favors an arrangement in chains of the magnetosomes, similar to that observed in magnetosomes directly extracted from magnetotactic bacteria, while the thick matrix embedding M-Neri leads to structures with an average thickness of 3.5 um2 per magnetosome mineral. In the presence of GL-261 cells and upon the application of an alternating magnetic field, M-PEI and M-Chi lead to the highest specific absorption rates of 120-125 W/gFe. Furthermore, while M-Chi lead to rather low rates of cellular internalization, M-PEI strongly associate to cells, a property modulated by the application of an alternating magnetic field. CONCLUSIONS: Coating of purified magnetosome minerals can therefore be chosen to control the interactions of nanoparticles with cells, organization of the minerals, as well as heating and cytotoxicity properties, which are important parameters to be considered in the design of a magnetic hyperthermia treatment of tumor. PMID- 29041938 TI - Development of breath test for pneumoconiosis: a case-control study. AB - BACKGROUND: Lipid peroxidation plays an important role in the pathogenesis of pneumoconiosis. Volatile organic compounds (VOCs) generated from lipid peroxidation might be used to detect pneumoconiosis. The objective of this study was to develop a breath test for pneumoconiosis. METHODS: A case-control study was designed. Breath and ambient air were analysed by gas chromatography/mass spectrometry. After blank correction to prevent contamination from ambient air, we used canonical discriminant analysis (CDA) to assess the discrimination accuracy and principal component analysis (PCA) to generate a prediction score. The prediction accuracy was calculated and validated using the International Classification of Radiographs of the Pneumoconiosis criteria combined with an abnormal pulmonary function test as a reference standard. We generated a receiver operator characteristic (ROC) curve and calculated the area under the ROC curve (AUC) to estimate the screening accuracy of the breath test. RESULTS: We enrolled 200 stone workers. After excluding 5 subjects with asthma and 16 subjects who took steroids or nonsteroidal anti-inflammatory drugs, a total of 179 subjects were used in the final analyses, which included 25 cases and 154 controls. By CDA, 88.8% of subjects were correctly discriminated by their exposure status and the presence of pneumoconiosis. After excluding the VOCs of automobile exhaust and cigarette smoking, pentane and C5-C7 methylated alkanes constituted the major VOCs in the breath of persons with pneumoconiosis. Using the prediction score generated from PCA, the ROC-AUC was 0.88 (95% CI = 0.80-0.95), and the mean ROC AUC of 5-fold cross-validation was 0.90. The breath test had good accuracy for pneumoconiosis diagnosis. CONCLUSION: The analysis of breath VOCs has potential in the screening of pneumoconiosis for its non-invasiveness and high accuracy. We suggest that a multi-centre study is warranted and that all procedures must be standardized before clinical application. PMID- 29041939 TI - Evidence-based decision-making for diagnostic and therapeutic methods: the changing landscape of assessment approaches in Germany. AB - This article examines the current status and most important changes over time to the legislative framework on the health technology assessment-informed decision making process on diagnostic and therapeutic 'methods' in Germany. The relevant information was obtained through documentary analysis covering the period 1990 to 2017. The findings show that, even if the outpatient care sector appears to be much more regulated than the inpatient sector (based on a strict separation of the two care settings), developments in Germany have led to a more tightened assessment framework, making the use of evidence a firm component in the decision making process. Nevertheless, a comprehensive approach for a systematic assessment of diagnostic and therapeutic 'methods' still does not exist. Readjustments of current regulations in Germany, such as the existing 'Verbotsvorbehalt' (i.e. provision of a diagnostic and therapeutic 'method' possible unless actively delisted) in the inpatient care setting, as well as further developments at the European level are needed in order to create a system that ensures early access to innovation under controlled study conditions. PMID- 29041940 TI - State of inequality in malaria intervention coverage in sub-Saharan African countries. AB - BACKGROUND: Scale-up of malaria interventions over the last decade have yielded a significant reduction in malaria transmission and disease burden in sub-Saharan Africa. We estimated economic gradients in the distribution of these efforts and of their impacts within and across endemic countries. METHODS: Using Demographic and Health Surveys we computed equity metrics to characterize the distribution of malaria interventions in 30 endemic countries proxying economic position with an asset-wealth index. Gradients were summarized in a concentration index, tabulated against level of coverage, and compared among interventions, across countries, and against respective trends over the period 2005-2015. RESULTS: There remain broad differences in coverage of malaria interventions and their distribution by wealth within and across countries. In most, economic gradients are lacking or favor the poorest for vector control; malaria services delivered through the formal healthcare sector are much less equitable. Scale-up of interventions in many countries improved access across the wealth continuum; in some, these efforts consistently prioritized the poorest. Expansions in control programs generally narrowed coverage gaps between economic strata; gradients persist in countries where growth was slower in the poorest quintile or where baseline inequality was large. Despite progress, malaria is consistently concentrated in the poorest, with the degree of inequality in burden far surpassing that expected given gradients in the distribution of interventions. CONCLUSIONS: Economic gradients in the distribution of interventions persist over time, limiting progress toward equity in malaria control. We found that, in countries with large baseline inequality in the distribution of interventions, even a small bias in expansion favoring the least poor yielded large gradients in intervention coverage while pro-poor growth failed to close the gap between the poorest and least poor. We demonstrated that dimensions of disadvantage compound for the poor; a lack of economic gradients in the distribution of malaria services does not translate to equity in coverage nor can it be interpreted to imply equity in distribution of risk or disease burden. Our analysis testifies to the progress made by countries in narrowing economic gradients in malaria interventions and highlights the scope for continued monitoring of programs with respect to equity. PMID- 29041941 TI - Disentangling the effects of a multiple behaviour change intervention for diarrhoea control in Zambia: a theory-based process evaluation. AB - BACKGROUND: Diarrhoea is a leading cause of child death in Zambia. As elsewhere, the disease burden could be greatly reduced through caregiver uptake of existing prevention and treatment strategies. We recently reported the results of the Komboni Housewives intervention which tested a novel strategy employing motives including affiliation and disgust to improve caregiver practice of four diarrhoea control behaviours: exclusive breastfeeding; handwashing with soap; and correct preparation and use of oral rehydration salts (ORS) and zinc. The intervention was delivered via community events (women's forums and road shows), at health clinics (group session) and via radio. A cluster randomised trial revealed that the intervention resulted in a small improvement in exclusive breastfeeding practices, but was only associated with small changes in the other behaviours in areas with greater intervention exposure. This paper reports the findings of the process evaluation that was conducted alongside the trial to investigate how factors associated with intervention delivery and receipt influenced caregiver uptake of the target behaviours. METHODS: Process data were collected from the eight peri-urban and rural intervention areas throughout the six-month implementation period and in all 16 clusters 4-6 weeks afterwards. Intervention implementation (fidelity, reach, dose delivered and recruitment strategies) and receipt (participant engagement and responses, and mediators) were explored through review of intervention activity logs, unannounced observation of intervention events, semi-structured interviews, focus groups with implementers and intervention recipients, and household surveys. Evaluation methods and analyses were guided by the intervention's theory of change and the evaluation framework of Linnan and Steckler. RESULTS: Intervention reach was lower than intended: 39% of the surveyed population reported attending one or more face-to face intervention event, of whom only 11% attended two or more intervention events. The intervention was not equally feasible to deliver in all settings: fewer events took place in remote rural areas, and the intervention did not adequately penetrate communities in several peri-urban sites where the population density was high, the population was slightly higher socio-economic status, recruitment was challenging, and numerous alternative sources of entertainment existed. Adaptations made by the implementers affected the fidelity of implementation of messages for all target behaviours. Incorrect messages were consequently recalled by intervention recipients. Participants were most receptive to the novel disgust and skills-based interactive demonstrations targeting exclusive breastfeeding and ORS preparation respectively. However, initial disgust elicitation was not followed by a change in associated psychological mediators, and social norms were not measurably changed. CONCLUSIONS: The lack of measured behaviour change was likely due to issues with both the intervention's content and its delivery. Achieving high reach and intensity in community interventions delivered in diverse settings is challenging. Achieving high fidelity is also challenging when multiple behaviours are targeted for change. Further work using improved tools is needed to explore the use of subconscious motives in behaviour change interventions. To better uncover how and why interventions achieve their measured effects, process evaluations of complex interventions should develop and employ frameworks for investigation and interpretation that are structured around the intervention's theory of change and the local context. TRIAL REGISTRATION: The study was registered as part of the larger trial on 5 March 2014 with ClinicalTrials.gov: NCT02081521 . PMID- 29041942 TI - Patient-reported health-related quality of life, work productivity, and activity impairment during treatment with ALO-02 (extended-release oxycodone and sequestered naltrexone) for moderate-to-severe chronic low back pain. AB - BACKGROUND: The efficacy of ALO-02, an abuse-deterrent formulation containing extended-release oxycodone and sequestered naltrexone, in the treatment of chronic low back pain (CLBP) was studied in a 12-week randomized controlled trial. Primary efficacy endpoint results have been published previously (Rauck et al., 2015). The current paper focuses on patient-reported outcomes for health related quality of life (HRQL), work productivity, and activity impairment that were assessed during this study. METHODS: This was a double-blind, placebo controlled, randomized withdrawal study in patients with moderate-to-severe CLBP. After a screening period (<=2 weeks), patients entered an open-label titration period (4-6 weeks). Treatment responders were then randomized to a double-blind placebo-controlled treatment period (12 weeks). HRQL was assessed using changes in the Short Form-36 v2 Health Survey (SF-36v2) and the EuroQol-5 Dimensions Health Questionnaire 3-Level version (EQ-5D-3L). Work productivity and regular activities were evaluated using the Work Productivity and Activity Impairment Questionnaire: Specific Health Problem (WPAI:SHP). RESULTS: A total of 410 patients received ALO-02 during the open-label titration period, of which 280 (intent-to-treat (ITT) population) were treated during the double-blind placebo controlled treatment period (placebo, n = 134; ALO-02, n = 146). Significant improvement was observed for all SF-36v2 subscales and component scores (p < 0.005) and the EQ-5D-3L summary index and visual analog scale (p < 0.0001) during the titration period. Improvement was also significant (p < 0.0001) for all WPAI:SHP outcomes except 'work time missed due to CLBP' for the titration period. Significant differences favoring ALO-02 compared with placebo were only observed for the SF-36v2 Bodily Pain subscale (p <= 0.0232; ITT population) during the double-blind treatment period and the overall study period (screening to the end of the double-blind treatment period). The percentage change in activity impairment due to low back pain subscale of the WPAI:SHP significantly favored ALO-02 compared with placebo for the ITT population when considering the overall study period (p = 0.0040). CONCLUSIONS: HRQL, work productivity, and activity impairment may be improved with ALO-02 treatment. TRIAL REGISTRATION: ClinicalTrials.gov NCT01571362 , registered April 3, 2012. PMID- 29041943 TI - Human umbilical cord Wharton jelly cells promote extra-pancreatic insulin formation and repair of renal damage in STZ-induced diabetic mice. AB - BACKGROUND: We evaluated the therapeutic effect and fate of high doses of human umbilical cord Wharton jelly cells (hUCWJCs) after IP administration to streptozotocin (STZ)-induced diabetic mice. METHODS: Type 1 diabetes (T1D) was induced in Kunming mice via IP injection of STZ. hUCWJCs were labeled with 1,1' dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI). Diabetic animals with sustained hyperglycemia for at least 2 weeks were administered 1 * 107 Dil-hUCWJCs via intraperitoneal injection. Insulin, glucagon and PDX-1 were detected by immunofluorescence with confocal microscopy. Serum mouse and human C peptide was assayed in blood collected via intracardiac puncture. Specific beta cell differentiation markers and human DNA were assessed using qPCR performed with 200 ng of target DNA. RESULTS: hUCWJCs migrated to the STZ-damaged organs and contributed to lower blood glucose levels in 30% of the treated mice. Confocal microscopy revealed the presence of resident insulin-positive cells in the liver and kidneys. hUCWJC-treated mice with restored hyperglycemia also showed increased serum mouse C-peptide levels. The qPCR results, particularly in the liver, revealed that after transplantation hUCWJCs upregulated genes of endocrine precursors but failed to express endocrine stage markers. Mice with restored hyperglycemia had reduced urinary volume and lacked glomerular hypertrophy, exhibiting a morphology resembling that of normal glomeruli. Moreover, we also verified that one of the possible mechanisms by which hUCWJCs exert immunosuppressive effects is through down-regulation of the cell surface receptor HLA-1. CONCLUSIONS: We confirmed the potential of IP administration of hUCWJCs and the capability of these cells to migrate to damaged tissues and promote insulin secretion from non-pancreatic local cells and to improve renal damage. These findings confer unique therapeutic properties to hUCWJCs, suggesting a promising future in the treatment of diabetes mellitus. PMID- 29041944 TI - Differential expression of porcine microRNAs in African swine fever virus infected pigs: a proof-of-concept study. AB - BACKGROUND: African swine fever (ASF) is a re-expanding devastating viral disease currently threatening the pig industry worldwide. MicroRNAs are a class of 17-25 nucleotide non- coding RNAs that have been shown to have critical functions in a wide variety of biological processes, such as cell differentiation, cell cycle regulation, carcinogenesis, apoptosis, regulation of immunity as well as in viral infections by cleavage or translational repression of mRNAs. Nevertheless, there is no information about miRNA expression in an ASFV infection. METHODS: In this proof-of-concept study, we have analyzed miRNAs expressed in spleen and submandibular lymph node of experimentally infected pigs with a virulent (E75) or its derived attenuated (E75CV1) ASFV strain, as well as, at different times post infection with the virulent strain, by high throughput sequencing of small RNA libraries. RESULTS: Spleen presented a more differential expression pattern than lymph nodes in an ASFV infection. Of the most abundant miRNAs, 12 were differentially expressed in both tissues at two different times in infected animals with the virulent strain. Of these, miR-451, miR-145-5p, miR-181a and miR 122 presented up-regulation at late times post-infection while miR-92a, miR-23a, miR-92b-3p, miR-126-5p, miR-126-3p, miR-30d, miR-23b and miR-92c showed down regulation. Of the 8 differentially expressed miRNAs identified at the same time post-infection in infected animals with the virulent strain compared with animals infected with its attenuated strain, miR-126-5p, miR-92c, miR-92a, miR-30e-5p and miR-500a-5p presented up-regulation whereas miR-125b, miR-451 and miR-125a were down-regulated. All these miRNAs have been shown to be associated with cellular genes involved in pathways related to the immune response, virus-host interactions as well as with several viral genes. CONCLUSION: The study of miRNA expression will contribute to a better understanding of African swine fever virus pathogenesis, essential in the development of any disease control strategy. PMID- 29041945 TI - Double calcaneal osteotomy for severe adolescent flexible flatfoot reconstruction. AB - BACKGROUND: The timing and strategy of treatment for flatfoot still remain controversial. It is a difficult problem when facing severe adolescent flexible flatfoot because a single procedure cannot realign flatfoot deformity effectively. METHODS: We reviewed 13 adolescent flexible flatfoot patients who underwent double calcaneal osteotomy during May 2012 to June 2015. The mean age of patients was 15.2 +/- 1.8 (range, 10-18) years. The American Orthopaedic Foot and Ankle Society Ankle-Hindfoot (AOFAS-AH) scores and SF-36 score were adopted to evaluate the preoperative and postoperative functions of the foot. Changes of hindfoot valgus angles, talonavicular uncoverage angles on AP view and talo-first metatarsal angles, and talar pitch angles and calcaneal pitch angles on the lateral film before and after surgery were measured. RESULTS: All 13 patients (15 ft) were followed. The mean duration of follow-up was 34.5 +/- 15.7 (range, 21 60) months. The hindfoot valgus angle improved from 16.5 +/- 4.1 to 2.9 +/- 1.6. On the foot AP view, the mean preoperative and postoperative talonavicular coverage angles were 24.9 +/- 8.5 and 6.5 +/- 3.6. On the lateral view of the foot, the average preoperative and postoperative talo-first metatarsal angles were 18.1 +/- 5.5 and 4.9 +/- 4.4. The mean preoperative and postoperative talar pitch angles were 36.4 +/- 4.7 and 24.0 +/- 5.6. The AOFAS-AH score improved from 68.9 +/- 12.3 preoperatively to 94.6 +/- 3.9 postoperatively. CONCLUSION: With additional procedures, double calcaneal osteotomy was an effective method for severe adolescent flexible flatfoot. PMID- 29041946 TI - The role of B cell antigen receptors in mantle cell lymphoma. AB - Mantle cell lymphoma (MCL) is characterized by an aggressive clinical course and secondary resistance to currently available therapies in most cases. Therefore, despite recent advances in the treatment of this disease, it is still considered to be incurable in the majority of cases. MCL B cells retain their B cell antigen receptor (BCR) expression during and after neoplastic transformation. BCRs in MCL show distinct patterns of antigen selection and ongoing BCR signaling. However, little is known about the involved antigens and the mechanisms leading to lymphomagenesis and lymphoma progression in MCL. Recent preclinical and clinical studies have established a crucial role of the BCR and the potential of inhibiting its signaling in this disease. This has established the B cell antigen receptor signaling cascade as a very promising therapeutic target to improve outcome in MCL alone or in combination with chemo-immunotherapy in recent years. PMID- 29041947 TI - The Fear Reduction Exercised Early (FREE) approach to low back pain: study protocol for a randomised controlled trial. AB - BACKGROUND: Low back pain (LBP) is a major health issue associated with considerable health loss and societal costs. General practitioners (GPs) play an important role in the management of LBP; however, GP care has not been shown to be the most cost-effective approach unless exercise and behavioural counselling are added to usual care. The Fear Reduction Exercised Early (FREE) approach to LBP has been developed to assist GPs to manage LBP by empowering exploration and management of psychosocial barriers to recovery and provision of evidence-based care and information. The aim of the Low Back Pain in General Practice (LBPinGP) trial is to explore whether patients with LBP who receive care from GPs trained in the FREE approach have better outcomes than those who receive usual care. METHODS/DESIGN: This is a cluster randomised controlled superiority trial comparing the FREE approach with usual care for LBP management with investigator blinded assessment of outcomes. GPs will be recruited and then cluster randomised (in practice groups) to the intervention or control arm. Intervention arm GPs will receive training in the FREE approach, and control arm GPs will continue to practice as usual. Patients presenting to their GP with a primary complaint of LBP will be allocated on the basis of allocation of the GP they consult. We aim to recruit 60 GPs and 275 patients (assuming patients are recruited from 75% of GPs and an average of 5 patients per GP complete the study, accounting for 20% patient participant dropout). Patient participants and the trial statistician will be blind to group allocation throughout the study. Analyses will be undertaken on an intention-to-treat basis. The primary outcome will be back related functional impairment 6 months post-initial LBP consultation (interim data at 2 weeks, 6 weeks and 3 months), measured with the Roland-Morris Disability Questionnaire. Secondary patient outcomes include pain, satisfaction, quality of life, days off from work and costs of care. Secondary GP outcomes include beliefs about pain and impairment, GP confidence, and actual and reported clinical behaviour. Health economic and process evaluations will be conducted. DISCUSSION: In the LBPinGP trial, we will investigate providing an intervention during the first interaction a person with back pain has with their GP. Because the FREE approach is used within a normal GP consultation, if effective, it may be a cost-effective means of improving LBP care. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry, ACTRN12616000888460 . Registered on 6 July 2016. PMID- 29041949 TI - Incretins in patients with rheumatoid arthritis. AB - BACKGROUND: The precise mechanism linking systemic inflammation with insulin resistance (IR) in rheumatoid arthritis (RA) remains elusive. In the present study, we determined whether the incretin-insulin axis and incretin effect are disrupted in patients with RA and if they are related to the IR found in these patients. METHODS: We conducted a cross-sectional study that encompassed 361 subjects without diabetes, 151 patients with RA, and 210 sex-matched control subjects. Insulin, C-peptide, glucagon-like peptide-1 (GLP-1), gastric inhibitory polypeptide (GIP), dipeptidyl peptidase 4 (DPP-4) soluble form, and IR indexes by homeostatic model assessment (HOMA2) were assessed. A multivariable analysis adjusted for IR-related factors was performed. Additionally, ten patients and ten control subjects underwent a 566-kcal meal test so that we could further study the postprandial differences of these molecules between patients and control subjects. RESULTS: Insulin, C-peptide, and HOMA2-IR indexes were higher in patients than in control subjects. This was also the case for GLP-1 (0.49 +/- 1.28 vs. 0.71 +/- 0.22 ng/ml, p = 0.000) and GIP (0.37 +/- 0.40 vs. 1.78 +/- 0.51 ng/ml, p = 0.000). These differences remained significant after multivariable adjustment including glucocorticoid intake. Disease Activity Score in 28 joints with erythrocyte sedimentation rate (beta coefficient 46, 95% CI 6-87, p = 0.026) and Clinical Disease Activity Index (beta coefficient 7.74, 95% CI 1.29-14.20, p = 0.019) were associated with DPP-4 serum levels. GLP-1 positively correlated with beta-cell function (HOMA2 of beta-cell production calculated with C-peptide) in patients but not in control subjects (interaction p = 0.003). The meal test in patients with RA revealed a higher total and late response AUC for glucose response, a later maximal response of C-peptide, and a flatter curve in GIP response. CONCLUSIONS: The incretin-insulin axis, both during fasting and postprandial, is impaired in patients with RA. PMID- 29041948 TI - Effect of levosimendan on prognosis in adult patients undergoing cardiac surgery: a meta-analysis of randomized controlled trials. AB - BACKGROUND: Small trials suggest that levosimendan is associated with a favorable outcome in patients undergoing cardiac surgery. However, recently published larger-scale trials did not provide evidence for a similar benefit from levosimendan. We performed a meta-analysis to assess the survival benefits of levosimendan in patients undergoing cardiac surgery and to investigate its effects in subgroups of patients with preoperative low-ejection fraction (EF). METHODS: We identified randomized clinical trials through 20 April 2017 that investigated levosimendan therapy versus control in patients undergoing cardiac surgery. Individual patient data from each study were compiled. Meta-analyses were performed for primary outcomes, secondary outcomes and serious adverse events, and subgroup analyses according to the preoperative EF of enrolled patients were also conducted. The risk of bias was assessed using the Cochrane risk-of-bias tool. RESULTS: Seventeen studies involving a total of 2756 patients were included. Levosimendan therapy was associated with a significant reduction in 30-day mortality (RR 0.67; 95% CI, 0.49 to 0.93; p = 0.02) and reduced the risk of death in single-center trials (RR 0.49; 95% CI, 0.30 to 0.79; p = 0.004) and in subgroup trials of inferior quality (RR 0.39; 95% CI, 0.17 to 0.92; p = 0.02); however, in multicenter and in high-quality subgroup-analysis trials, no significant difference in mortality was observed between patients who received levosimendan therapy and controls (p > 0.05). However, in high-quality subgroup trials, levosimendan therapy was associated with reduced mortality in patients in a preoperative low-EF subgroup (RR 0.58; 95% CI, 0.38 to 0.88; p = 0.01). Similarly, only patients in the preoperative low-EF subgroup benefited in terms of reduced risk of renal replacement therapy (RR 0.54; 95% CI, 0.34 to 0.85; p = 0.007). Furthermore, levosimendan therapy was associated with a significant reduction in intensive care unit (ICU) length of stay (MDR -17.19; 95% CI, -34.43 to -2.94; p = 0.02). CONCLUSIONS: In patients undergoing cardiac surgery, the benefit of levosimendan in terms of survival was not shown in multicenter or in high-quality trials; however, levosimendan therapy was associated with reduced mortality in patients with preoperative ventricular systolic dysfunction. PMID- 29041950 TI - Convenience without disclosure: a formative research study of a proposed integrated methadone and antiretroviral therapy service delivery model in Dar es Salaam, Tanzania. AB - BACKGROUND: Though timely initiation of antiretroviral therapy (ART) is a vital component of effective HIV prevention, care and treatment, people who inject drugs are less likely to receive ART than their non-drug using counterparts. In an effort to increase access to ART for people who inject drugs, we examined perceived benefits, challenges, and recommendations for implementing an integrated methadone and ART service delivery model at an opioid treatment program (OTP) clinic in Dar es Salaam, Tanzania. METHODS: We conducted in-depth interviews with 12 providers and 20 HIV-positive patients at the Muhimbili National Hospital OTP clinic in early 2015. We used thematic content analysis to examine patient and provider perspectives of an integrated model. RESULTS: Respondents perceived that offering on-site CD4 testing and HIV clinical management at the OTP clinic would improve the timeliness and efficiency of the ART eligibility process, make HIV clinical care more convenient, mitigate stigma and discrimination in HIV care and treatment settings, and improve patient monitoring and ART adherence. However, perceived challenges included overburdened OTP clinic staff and limited space at the clinic to accommodate additional services. Limited privacy at the OTP clinic and its contribution to fear among HIV-positive patients of being stigmatized by their peers at the clinic was a common theme expressed particularly by patients, and often corroborated by providers. Co-dispensing ART and methadone at the clinic's pharmacy window was viewed as a potential deterrent for patients. Providers felt that an electronic health information system would help them better monitor patients' progress, but that this system would need to be integrated into existing health information systems. To address these potential barriers to implementing an integrated model, respondents recommended increasing OTP provider and clinic capacity, offering flexible ART dispensing options, ensuring privacy with ART dispensing, and harmonizing any new electronic health information systems with existing systems. CONCLUSIONS: An integrated methadone and ART service delivery model at the MNH OTP clinic could improve access to HIV care and treatment for OTP patients. However, specific implementation strategies must ensure that OTP providers are not overburdened and confidentiality of patients is maintained. PMID- 29041951 TI - A new bioassay for measuring the strength of IL-6/STAT3 signal inhibition by tocilizumab in patients with rheumatoid arthritis. AB - BACKGROUND: Interleukin-6 (IL-6) transduces signals via phosphorylation of STAT3 (pSTAT3). Tocilizumab (TCZ) is an IL-6 receptor blocker, which, when administered intravenously every 4 weeks, efficiently ameliorates rheumatoid arthritis (RA). Since IL-6 signal strength varies among patients with RA, the intensity necessary for appropriate IL-6 signal inhibition by TCZ might vary between individuals. In a previous study, we have examined the clinical utility of increasing (dosing interval shortened to 3 weeks) and decreasing (interval extended to 5 weeks) the dose frequency of TCZ. However, there is currently no established method for accurately measuring the strength of IL-6 signal inhibition by TCZ among individual patients. We therefore sought to develop such an assay. METHODS: Whole blood samples were collected from RA patients with low disease activity (clinical disease activity index (CDAI) <= 10) who were treated with TCZ at dosing intervals of 3 weeks (3-week group, n = 10), 4 weeks (4-week group, n = 10) or 5 weeks (5-week group, n = 10), or with methotrexate (control group, n = 10). Recombinant human IL-6 (0, 0.1, 1, 10, 100 ng/ml) was exogenously added to whole blood and the proportion of pSTAT3-positive CD4+ T cells (%pSTAT3+/CD4+) was measured by Phosflow cytometric analysis. RESULTS: The addition of exogenous IL-6 increased the proportion of pSTAT3-positive CD4+ T cells in a dose-dependent manner in each group. Inhibition of IL-6 signaling was strongest in the 3-week dosing group, followed by the 4-week, 5-week and control group. Significant differences in %pSTAT3+/CD4+ cells were observed between dose interval groups when stimulated with 10 ng/ml and 100 ng/ml of IL-6. CONCLUSION: Assessment of the proportion of pSTAT3-positive CD4+ T cells under IL-6 stimulation is a highly sensitive and useful method for determining differences in the strength of IL-6 signal inhibition in patients treated with TCZ. It is suggested that different TCZ treatment intervals were necessary to lower disease activity in each group of patients, and these findings also indicate that the IL-6 signaling pathway may differ in each RA patient. Our assay may support strategies for optimizing TCZ treatment in RA patients. PMID- 29041953 TI - A proposed framework for developing quality assessment tools. AB - BACKGROUND: Assessment of the quality of included studies is an essential component of any systematic review. A formal quality assessment is facilitated by using a structured tool. There are currently no guidelines available for researchers wanting to develop a new quality assessment tool. METHODS: This paper provides a framework for developing quality assessment tools based on our experiences of developing a variety of quality assessment tools for studies of differing designs over the last 14 years. We have also drawn on experience from the work of the EQUATOR Network in producing guidance for developing reporting guidelines. RESULTS: We do not recommend a single 'best' approach. Instead, we provide a general framework with suggestions as to how the different stages can be approached. Our proposed framework is based around three key stages: initial steps, tool development and dissemination. CONCLUSIONS: We recommend that anyone who would like to develop a new quality assessment tool follow the stages outlined in this paper. We hope that our proposed framework will increase the number of tools developed using robust methods. PMID- 29041952 TI - The response of muscle progenitor cells to cutaneous thermal injury. AB - BACKGROUND: Severe burn results in a systemic response that leads to significant muscle wasting. It is believed that this rapid loss in muscle mass occurs due to increased protein degradation combined with reduced protein synthesis. Alterations in the microenvironment of muscle progenitor cells may partially account for this pathology. The aim of this study was to ascertain the response of muscle progenitor cells following thermal injury in mice and to enlighten the cellular cascades that contribute to the muscle wasting. METHODS: C57BL/6 mice received a 20% total body surface area (TBSA) thermal injury. Gastrocnemius muscle was harvested at days 2, 7, and 14 following injury for protein and histological analysis. RESULTS: We observed a decrease in myofiber cross sectional area at 2 days post-burn. This muscle atrophy was compensated for by an increase in myofiber cross-sectional area at 7 and 14 days post-burn. Myeloperoxidase (MPO)-positive cells (neutrophils) increased significantly at 2 days. Moreover, through Western blot analysis of two key mediators of the proteolytic pathway, we show there is an increase in Murf1 and NF-kappaB 2 days post-burn. MPO-positive cells were also positive for NF-kappaB, suggesting that neutrophils attain NF-kappaB activity in the muscle. Unlike inflammatory and proteolytic pathways, the number of Pax7-positive muscle progenitor cells decreased significantly 2 days post-burn. This was followed by a recovery in the number of Pax7-positive cells at 7 and 14 days, suggesting proliferation of muscle progenitors that accompanied regrowth. CONCLUSION: Our data show a biphasic response in the muscles of mice exposed to burn injury, with phenotypic characteristics of muscle atrophy at 2 days while compensation was observed later with a change in Pax7-positive muscle progenitor cells. Targeting muscle progenitors may be of therapeutic benefit in muscle wasting observed after burn injury. PMID- 29041954 TI - Combined cognitive and vocational interventions after mild to moderate traumatic brain injury: study protocol for a randomized controlled trial. AB - BACKGROUND: A considerable proportion of patients with mild to moderate traumatic brain injury (TBI) experience long-lasting somatic, cognitive, and emotional symptoms that may hamper their capacity to return to work (RTW). Although several studies have described medical, psychological, and work-related factors that predict RTW after TBI, well-controlled intervention studies regarding RTW are scarce. Furthermore, there has traditionally been weak collaboration among health related rehabilitation services, the labor and welfare sector, and workplaces. METHODS/DESIGN: This study protocol describes an innovative randomized controlled trial in which we will explore the effect of combining manualized cognitive rehabilitation (Compensatory Cognitive Training [CCT]) and supported employment (SE) on RTW and related outcomes for patients with mild to moderate TBI in real life competitive work settings. The study will be carried out in the southeastern region of Norway and thereby be performed within the Norwegian welfare system. Patients aged 18-60 years with mild to moderate TBI who are employed in a minimum 50% position at the time of injury and sick-listed 50% or more for postconcussive symptoms 2 months postinjury will be included in the study. A comprehensive assessment of neurocognitive function, self-reported symptoms, emotional distress, coping style, and quality of life will be performed at baseline, immediately after CCT (3 months after inclusion), following the end of SE (6 months after inclusion), and 12 months following study inclusion. The primary outcome measures are the proportion of participants who have returned to work at 12-month follow-up and length of time until RTW, in addition to work stability as well as work productivity over the first year following the intervention. Secondary outcomes include changes in self-reported symptoms, emotional and cognitive function, and quality of life. Additionally, a qualitative RTW process evaluation focused on organizational challenges at the workplace will be performed. DISCUSSION: The proposed study will combine cognitive and vocational rehabilitation and explore the efficacy of increased cross-sectoral collaboration between specialized health care services and the labor and welfare system. If the intervention proves effective, the project will describe the cost-effectiveness and utility of the program and thereby provide important information for policy makers. In addition, knowledge about the RTW process for persons with TBI and their workplaces will be provided. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03092713 . Registered on 10 March 2017. PMID- 29041955 TI - Pluripotent nontumorigenic multilineage differentiating stress enduring cells (Muse cells): a seven-year retrospective. AB - Multilineage differentiating stress enduring (Muse) cells, discovered in the spring of 2010 at Tohoku University in Sendai, Japan, were quickly recognized by scientists as a possible source of pluripotent cells naturally present within mesenchymal tissues. Muse cells normally exist in a quiescent state, singularly activated by severe cellular stress in vitro and in vivo. Muse cells have the capacity for self-renewal while maintaining pluripotent cell characteristics indicated by the expression of pluripotent stem cell markers. Muse cells differentiate into cells representative of all three germ cell layers both spontaneously and under media-specific induction. In contrast to embryonic stem and induced pluripotent stem cells, Muse cells exhibit low telomerase activity, a normal karyotype, and do not undergo tumorigenesis once implanted in SCID mice. Muse cells efficiently home into damaged tissues and differentiate into specific cells leading to tissue regeneration and functional recovery as described in different animal disease models (i.e., fulminant hepatitis, muscle degeneration, skin ulcers, liver cirrhosis, cerebral stroke, vitiligo, and focal segmental glomerulosclerosis). Circulating Muse cells have been detected in peripheral blood, with higher levels present in stroke patients during the acute phase. Furthermore, Muse cells have inherent immunomodulatory properties, which could contribute to tissue generation and functional repair in vivo. Genetic studies in Muse cells indicate a highly conserved cellular mechanism as seen in more primitive organisms (yeast, Saccharomyces cerevisiae, Caenorhabditis elegans, chlamydomonas, Torpedo californica, drosophila, etc.) in response to cellular stress and acute injury. This review details the molecular and cellular properties of Muse cells as well as their capacity for tissue repair and functional recovery, highlighting their potential for clinical application in regenerative medicine. PMID- 29041956 TI - Genetic sex determination of mice by simplex PCR. AB - BACKGROUND: Investigating fetal development in mice necessitates the determination of fetal sex. However, whilst the sex of adult and juvenile mice can be readily distinguished from anogenital distance, the sex of fetal and neonatal mice cannot be identified visually. Instead, genetic sex must be determined by PCR amplification of X chromosome genes with divergent Y chromosome gametologs. Existing simplex PCR methods are confounded by small size differences between amplicons, amplification of unexpected products, and biased amplification of the shorter amplicon. RESULTS: Primers were designed flanking an 84 bp deletion of the X-linked Rbm31x gene relative to its Y-linked gametolog Rbm31y. A single product was amplified from XX samples, with two products amplified from XY samples. Amplicons were resolved by gel electrophoresis for 20 min, with unbiased amplification of both products observed in XY samples. CONCLUSION: This method achieves rapid and unequivocal genetic sex determination of mice in low volume PCR reactions, reducing reagent usage and simultaneously eliminating shortcomings of previous methods. PMID- 29041957 TI - How should we give vitamin D supplementation? evaluation of the pediatricians' knowledge in Turkey. AB - BACKGROUND: We aimed to determine the knowledge and attitudes of Turkish pediatricians concerning vitamin D supplement. METHODS: The study was planned cross-sectional to be carried out between April-May 2015 in Turkey. A questionnaire form that determined the participants' opinions and practices concerning vitamin D supplement was completed via face-to-face interview. RESULTS: A total of 107 pediatricians (49.3%) and 110 pediatric residents (50.7%) participated in the study. Of the physicians, 85.2% recommended vitamin D supplement for all infants and children regardless of diet, 13.4% recommended for the infants which are solely breastfed. Vitamin D supplement is recommended at a dose of 400 IU/day by 88.8% of pediatricians and by 90% of pediatric residents. Of the pediatricians and pediatric residents, 72% and 68.2%, respectively commence vitamin D supplement when the newborn is 15 days old. The rates of recommending vitamin D supplement until the age of one and two years were higher among pediatricians (48.6% and 41.1%, respectively) than pediatric residents (40.9% and 32.7%, respectively). The rate of starting vitamin D supplement for fontanelle closure was significantly higher among pediatric residents (15.5%) than pediatricians (3.7%) (p = 0.002). It was determined that the rate of prescribing vitamin D supplement until fontanelle closure was higher among pediatric residents (18.2%) than pediatricians (0.9%). CONCLUSIONS: The present study suggest that the knowledge of pediatricians about recommendation of vitamin D needs to be enhanced by education programs in addition to free vitamin D supplement provided by the Ministry of Health. PMID- 29041958 TI - Towards a balanced view of the bacterial tree of life. AB - The bacterial tree of life has recently undergone significant expansion, chiefly from candidate phyla retrieved through genome-resolved metagenomics. Bypassing the need for genome availability, we present a snapshot of bacterial phylogenetic diversity based on the recovery of high-quality SSU rRNA gene sequences extracted from nearly 7000 metagenomes and all available reference genomes. We illuminate taxonomic richness within established bacterial phyla together with environmental distribution patterns, providing a revised framework for future phylogeny-driven sequencing efforts. PMID- 29041959 TI - SEED: a tool for disseminating systematic review data into Wikipedia. AB - Wikipedia, the free-content online encyclopaedia, contains many heavily accessed pages relating to healthcare. Cochrane systematic reviews contain much high-grade evidence but dissemination into Wikipedia has been slow. New skills are needed to both translate and relocate data from Cochrane reviews to implant into Wikipedia pages. This letter introduces a programme to greatly simplify the process of disseminating the summary of findings of Cochrane reviews into Wikipedia pages. PMID- 29041961 TI - Treatment evaluation of Wharton's jelly-derived mesenchymal stem cells using a chronic salpingitis model: an animal experiment. AB - BACKGROUND: The present study was conducted to evaluate new methods to repair the reproductive function of the oviduct, thereby allowing gametes to combine and grow in vivo under natural circumstances. METHODS: Sixty pathogen-free female New Zealand rabbits were divided into three groups: a wild-type group, an untreated control group, and a treatment group. Disposable sterile newborn sputum suction tubes were inserted into the urogenital tract to instill an Escherichia coli suspension into the uterine cavity to establish the chronic salpingitis model. Wharton's jelly-derived mesenchymal stem cells (WJMSCs) or normal saline were used to treat this infection via different methods. The therapeutic effect was assessed by evaluating morphology, inflammatory factors, proteinology, and pregnancy outcomes. RESULTS: Oviducts of New Zealand rabbits in the untreated control group showed structural failure and abnormal supermicrostructure of epithelial cells. WJMSCs could partially repair the structure and supermicrostructure of the tubal epithelium. The concentration of tumor necrosis factor (TNF)-alpha in the untreated control group was significantly higher than that in the wild-type group (P = 0.015). The concentration of TNF-alpha in the local treatment group was significantly lower than that in the untreated control group (P = 0.011). The expression of oviductal glycoprotein (OVGP) and OVGP mRNA in the wild-type group was significantly higher than those in the untreated control group (P = 0.024 and P = 0.013, respectively). The litter size of the treatment group was 2 +/- 2.39 kits, which was higher than that of the untreated control group (P = 0.035). CONCLUSION: Chronic inflammation can destroy the structure of the oviduct and the supermicrostructure of epithelial cells as well as leading to infertility. WJMSC transplantation therapy in rabbits with chronic salpingitis partially restored fertility. WJMSCs also repaired the structure of the tubal epithelium subjected to chronic inflammation, decreased the level of inflammatory factors, and partially restored the secretion level of OVGP. PMID- 29041960 TI - Substantial contribution of genetic variation in the expression of transcription factors to phenotypic variation revealed by eRD-GWAS. AB - BACKGROUND: There are significant limitations in existing methods for the genome wide identification of genes whose expression patterns affect traits. RESULTS: The transcriptomes of five tissues from 27 genetically diverse maize inbred lines were deeply sequenced to identify genes exhibiting high and low levels of expression variation across tissues or genotypes. Transcription factors are enriched among genes with the most variation in expression across tissues, as well as among genes with higher-than-median levels of variation in expression across genotypes. In contrast, transcription factors are depleted among genes whose expression is either highly stable or highly variable across genotypes. We developed a Bayesian-based method for genome-wide association studies (GWAS) in which RNA-seq-based measures of transcript accumulation are used as explanatory variables (eRD-GWAS). The ability of eRD-GWAS to identify true associations between gene expression variation and phenotypic diversity is supported by analyses of RNA co-expression networks, protein-protein interaction networks, and gene regulatory networks. Genes associated with 13 traits were identified using eRD-GWAS on a panel of 369 maize inbred lines. Predicted functions of many of the resulting trait-associated genes are consistent with the analyzed traits. Importantly, transcription factors are significantly enriched among trait associated genes identified with eRD-GWAS. CONCLUSIONS: eRD-GWAS is a powerful tool for associating genes with traits and is complementary to SNP-based GWAS. Our eRD-GWAS results are consistent with the hypothesis that genetic variation in transcription factor expression contributes substantially to phenotypic diversity. PMID- 29041962 TI - Comparative assessment of An. gambiae and An. stephensi mosquitoes to determine transmission-reducing activity of antibodies against P. falciparum sexual stage antigens. AB - BACKGROUND: With the increasing interest in vaccines to interrupt malaria transmission, there is a demand for harmonization of current methods to assess Plasmodium transmission in laboratory settings. Potential vaccine candidates are currently tested in the standard membrane feeding assay (SMFA) that commonly relies on Anopheles stephensi mosquitoes. Other mosquito species including Anopheles gambiae are the dominant malaria vectors for Plasmodium falciparum in sub-Saharan Africa. METHODS: Using human serum and monoclonal pre-fertilization (anti-Pfs48/45) and post-fertilization (anti-Pfs25) antibodies known to effectively inhibit sporogony, we directly compared SMFA based estimates of transmission-reducing activity (TRA) for An. stephensi and An. gambiae mosquitoes. RESULTS: In the absence of transmission-reducing antibodies, average numbers of oocysts were similar between An. gambiae and An. stephensi. Antibody mediated TRA was strongly correlated between both mosquito species, and absolute TRA estimates for pre-fertilisation monoclonal antibodies (mAb) showed no significant difference between the two species. TRA estimates for IgG of naturally exposed individuals and partially effective concentrations of anti Pfs25 mAb were higher for An. stephensi than for An. gambiae. CONCLUSION: Our findings support the use of An. stephensi in the SMFA for target prioritization. As a vaccine moves through product development, better estimates of TRA and transmission-blocking activity (TBA) may need to be obtained in epidemiologically relevant parasite-species combination. PMID- 29041964 TI - Olfactive stimulation interventions for managing procedural pain in preterm and full-term neonates: a systematic review protocol. AB - BACKGROUND: While hospitalized in the NICU, preterm neonates undergo many painful procedures. This may be the same for full-term neonates when longer hospitalization is required. Untreated and repeated pain has short-term as well as long-term consequences for these neonates. Pharmacological pain management methods have many limitations in their applications for both preterm and full term neonates. A combination of different non-pharmacological methods is recommended for pain management. The effect of olfactive stimulation as a non pharmacological pain management method was investigated by a few studies in the past years with premature and term neonates, but no systematic review has been conducted. The objective of this systematic review is to evaluate the effect of olfactive stimulation intervention on the pain response of preterm and full-term neonates during painful procedures. METHODS: An electronic search will be conducted in various databases such as PubMed (1946 to date), MEDLINE (1946 to date), CINAHL (1981 to date), Embase (1947 to date), PsycINFO (1806 to date), Web of Science (1945 to date), CENTRAL and Scopus (1960 to date), and Proquest, without restriction for the year of publication. Only studies published in English or French will be included. The search will be conducted using the following three concepts: pain, odors, and neonates. Selection of articles, data extraction, and assessment of risk of bias will be conducted by two independent researchers. A third researcher will intervene in case of disagreement. According to the availability of studies and data homogeneity, the results will be combined to perform a meta-analysis, or they will be described by a narrative synthesis. DISCUSSION: This systematic review will provide light on the current state of knowledge on the effectiveness of olfactive stimulation interventions for managing pain in preterm and full-term neonates. This review will guide clinical practice as well as research to improve preterm and full-term neonates' pain management and prevent short-term and long-term complications caused by pain. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42017058021. PMID- 29041963 TI - Is gout a risk equivalent to diabetes for stroke and myocardial infarction? A retrospective claims database study. AB - BACKGROUND: Gout is a risk factor for cardiovascular disease, but associations with specific cardiovascular outcomes, myocardial infarction (MI), and stroke are unclear. Our objective in the present study was to assess whether gout is as strong a risk factor as diabetes mellitus (DM) for incident MI and incident stroke. METHODS: In this retrospective study, we used U.S. claims data from 2007 to 2010 that included a mix of private and public health plans. Four mutually exclusive cohorts were identified: (1) DM only, (2) gout only, (3) gout and DM, and (4) neither gout nor DM. Outcomes were acute MI or stroke with hospitalization. We compared the age- and sex-specific rates of incident MI and stroke across the four cohorts and assessed multivariable-adjusted HRs. RESULTS: In this study, 232,592 patients had DM, 71,755 had gout, 23,261 had both, and 1,010,893 had neither. The incidence of acute MI was lowest in patients with neither gout nor DM, followed by patients with gout alone, DM alone, and both. Among men >80 years of age, the respective rates/1000 person-years were 14.6, 25.4, 27.7, and 37.4. Similar trends were noted for stroke and in women. Compared with DM only, gout was associated with a significantly lower adjusted HR of incident MI (HR 0.81, 95% CI 0.76-0.87) but a similar risk of stroke (HR 1.02, 95% CI 0.95-1.10). Compared with patients with DM only, patients with both gout and DM had higher HRs for incident MI and stroke (respectively, HR 1.35, 95% CI 1.25-1.47; HR 1.42, 95% CI 1.29-1.56). CONCLUSIONS: Gout is a risk equivalent to DM for incident stroke but not for incident MI. Having both gout and DM confers incremental risk compared with DM alone for both incident MI and stroke. PMID- 29041966 TI - Correction to: Obesity, change of body mass index and subsequent physical and mental health functioning: a 12-year follow-up study among ageing employees. PMID- 29041965 TI - Enrichment allows identification of diverse, rare elements in metagenomic resistome-virulome sequencing. AB - BACKGROUND: Shotgun metagenomic sequencing is increasingly utilized as a tool to evaluate ecological-level dynamics of antimicrobial resistance and virulence, in conjunction with microbiome analysis. Interest in use of this method for environmental surveillance of antimicrobial resistance and pathogenic microorganisms is also increasing. In published metagenomic datasets, the total of all resistance- and virulence-related sequences accounts for < 1% of all sequenced DNA, leading to limitations in detection of low-abundance resistome virulome elements. This study describes the extent and composition of the low abundance portion of the resistome-virulome, using a bait-capture and enrichment system that incorporates unique molecular indices to count DNA molecules and correct for enrichment bias. RESULTS: The use of the bait-capture and enrichment system significantly increased on-target sequencing of the resistome-virulome, enabling detection of an additional 1441 gene accessions and revealing a low abundance portion of the resistome-virulome that was more diverse and compositionally different than that detected by more traditional metagenomic assays. The low-abundance portion of the resistome-virulome also contained resistance genes with public health importance, such as extended-spectrum betalactamases, that were not detected using traditional shotgun metagenomic sequencing. In addition, the use of the bait-capture and enrichment system enabled identification of rare resistance gene haplotypes that were used to discriminate between sample origins. CONCLUSIONS: These results demonstrate that the rare resistome-virulome contains valuable and unique information that can be utilized for both surveillance and population genetic investigations of resistance. Access to the rare resistome-virulome using the bait-capture and enrichment system validated in this study can greatly advance our understanding of microbiome-resistome dynamics. PMID- 29041967 TI - Microparticles from patients with systemic lupus erythematosus induce production of reactive oxygen species and degranulation of polymorphonuclear leukocytes. AB - BACKGROUND: The interaction of circulating microparticles (MPs) with immune cells in systemic lupus erythematosus (SLE) is sparsely investigated. We examined the ability of MPs from SLE patients to induce production of reactive oxygen species (ROS) and degranulation of polymorphonuclear leukocytes (PMNs). METHODS: Plasma MPs, leukocytes and sera isolated from 20 SLE patients and 10 healthy controls were mixed in different combinations, with or without lipopolysaccharide (LPS), and incubated for 30 min. Dihydrorhodamine 123 was used to measure ROS production by flow cytometry. The ability of immunoglobulin G (IgG) isolated from five SLE patients to increase MP-induced production of ROS by PMNs was tested. Cell supernatants were analysed for content of primary, secondary and tertiary granule components by Luminex assays. RESULTS: MPs from SLE patients promoted ROS production by PMNs, and enhanced LPS-induced ROS production and release of primary granules by PMNs, when added to samples of autologous leukocytes and serum. In a similar autologous setting, MPs from healthy controls enhanced LPS induced ROS production by PMNs. When leukocytes from a healthy control were stimulated with autologous MPs in the presence of various sera, SLE patient serum promoted ROS production and release of primary and secondary granules by PMNs. A role for antibodies in this respect was indicated by the observation that supplementation of normal serum with IgG from SLE patients promoted MP-induced ROS production by healthy PMNs. Moreover, when various MPs were incubated with leukocytes and serum from a healthy control, patient-derived MPs induced more ROS production by PMNs than did healthy control-derived MPs. CONCLUSIONS: SLE patients display increased ROS production and degranulation by PMNs in response to MPs, which partly depends on serum components, including antibodies, MP properties and hyper-responsiveness of the PMNs per se. PMID- 29041968 TI - Dynamic changes of oligomeric amyloid beta levels in plasma induced by spiked synthetic Abeta42. AB - BACKGROUND: A reliable blood-based assay is required to properly diagnose and monitor Alzheimer's disease (AD). Many attempts have been made to develop such a diagnostic tool by measuring amyloid-beta oligomers (AbetaOs) in the blood, but none have been successful in terms of method reliability. We present a multimer detection system (MDS), initially developed for the detection of prion oligomers in the blood, to detect AbetaOs. METHODS: To characterize Abeta in the blood, plasma was spiked with synthetic amyloid-beta (Abeta) and incubated over time. Then, the MDS was used to monitor the dynamic changes of AbetaO levels in the plasma. RESULTS: Increasing concentrations of AbetaOs were observed in the plasma of patients with AD but not in the plasma of normal control subjects. The plasma from patients with AD (n = 27) was differentiated from that of the age-matched normal control subjects (n = 144) with a sensitivity of 83.3% and a specificity of 90.0%. CONCLUSIONS: Synthetic Abeta spiked into the blood plasma of patients with AD, but that of not elderly normal control subjects, induced dynamic changes in the formation of AbetaOs over time. AbetaOs were detected by the MDS, which is a useful blood-based assay with high sensitivity and specificity for AD diagnosis. PMID- 29041970 TI - Comparison of the efficacy of static versus articular spacers in two-stage revision surgery for the treatment of infection following total knee arthroplasty: a meta-analysis. AB - BACKGROUND: The aim of this study was to compare the outcomes of static versus articular spacers in two-stage reimplantation for the treatment of infected total knee arthroplasty (TKA). METHODS: The literature regarding the articulating and static spacers for treating infected TKA were searched in PubMed, Embase, Cochrane Library, Chinese Periodical Full-Text Database of CNKI, and Wanfang database. Data were extracted according to the inclusion and exclusion criteria and analyzed by Review Manager 5.3. RESULTS: Ten studies were included to this meta-analysis (nine retrospective studies, one prospective study) according to the principle of PICOS. There was no significant difference regarding the eradication rate (P = 0.28) and the American Knee Society knee score (KSS) pain score (P = 0.11) between the articulating and static spacers in the two-stage revision surgery. There was no significant difference regarding quadriceps femoroplasty and tibial tubercle osteotomy between the two groups (P = 0.50). The knee range of motion (ROM), Hospital for Special Surgery (HSS) score, and KSS function score in the articulating group were significantly higher than those in the static group (P < 0.00001). CONCLUSION: Articulating spacers can provide better ROM and knee function scores after revision surgery when compared to static spacer while not compromising the infection eradication rate, soft tissue contracture during exclusion period, and knee pain scores. PMID- 29041969 TI - Glial cells are functionally impaired in juvenile neuronal ceroid lipofuscinosis and detrimental to neurons. AB - The neuronal ceroid lipofuscinoses (NCLs or Batten disease) are a group of inherited, fatal neurodegenerative disorders of childhood. In these disorders, glial (microglial and astrocyte) activation typically occurs early in disease progression and predicts where neuron loss subsequently occurs. We have found that in the most common juvenile form of NCL (CLN3 disease or JNCL) this glial response is less pronounced in both mouse models and human autopsy material, with the morphological transformation of both astrocytes and microglia severely attenuated or delayed. To investigate their properties, we isolated glia and neurons from Cln3-deficient mice and studied their basic biology in culture. Upon stimulation, both Cln3-deficient astrocytes and microglia also showed an attenuated ability to transform morphologically, and an altered protein secretion profile. These defects were more pronounced in astrocytes, including the reduced secretion of a range of neuroprotective factors, mitogens, chemokines and cytokines, in addition to impaired calcium signalling and glutamate clearance. Cln3-deficient neurons also displayed an abnormal organization of their neurites. Most importantly, using a co-culture system, Cln3-deficient astrocytes and microglia had a negative impact on the survival and morphology of both Cln3 deficient and wildtype neurons, but these effects were largely reversed by growing mutant neurons with healthy glia. These data provide evidence that CLN3 disease astrocytes are functionally compromised. Together with microglia, they may play an active role in neuron loss in this disorder and can be considered as potential targets for therapeutic interventions. PMID- 29041971 TI - Finnish physicians' stress related to information systems keeps increasing: a longitudinal three-wave survey study. AB - BACKGROUND: Poorly functioning, time-consuming, and inadequate information systems are among the most important work-related psychosocial factors causing stress in physicians. The present study examined the trend in the perceived stress that was related to information systems (SRIS) among Finnish physicians during a nine-year follow-up. In addition, we examined the associations of gender, age, employment sector, specialization status, leadership position, on call burden, and time pressure with SRIS change and levels. METHODS: A longitudinal design with three survey data collection waves (2006, 2010 and 2015) based on a random sample of Finnish physicians in 2006 was used. The study sample included 1095 physicians (62.3% women, mean age 54.4 years) who provided data on SRIS in every wave. GLM repeated measures analyses were used to examine the associations between independent variables and the SRIS trend during the years 2006, 2010, and 2015. RESULTS: SRIS increased during the study period. The estimated marginal mean of SRIS in 2006 was 2.80 (95% CI = 2.68-2.92) and the mean increase was 0.46 (95% CI = 0.30-0.61) points from 2006 to 2010 and 0.25 (95% CI = 0.11-0.39) points from 2010 to 2015. Moreover, our results show that the increase was most pronounced in primary care, whereas in hospitals SRIS did not increase between 2010 and 2015. SRIS increased more among those in a leadership position. On-call duties and high time-pressures were associated with higher SRIS levels during all waves. CONCLUSIONS: Changing, difficult, and poorly functioning information systems (IS) are a prominent source of stress among Finnish physicians and this perceived stress continues to increase. Organizations should implement arrangements to ease stress stemming from IS especially for those with a high workload and on-call or leadership duties. To decrease IS related stress, it would be important to study in more detail the main IS factors that contribute to SRIS. Earlier studies indicate that the usability and stability of information systems as well as end-user involvement in system development and work-procedure planning may be significant factors. PMID- 29041972 TI - Understanding the preference for homebirth; an exploration of key barriers to facility delivery in rural Tanzania. AB - BACKGROUND: There is limited information on the effect of expectant parents' socio-cultural perceptions and practices on the use of skilled birth attendants (SBAs) in rural Tanzania. The purpose of this study was to explore the socio cultural barriers to health facility birth and SBA among parents choosing home birth in rural Tanzania, specifically in the Rukwa Region. METHODS: This study used a descriptive exploratory methodology. Purposive sampling was used to recruit study participants for both in-depth interviews (IDIs) and focused group discussions (FGDs). Qualitative research methods, including FGDs and IDIs, were utilized in data collection. The respondents were men and women whose youngest child had been born at home within the prior 12 months. A thematic approach was used for data analysis. RESULTS: The main themes that emerged regarding barriers to the use of health facility were 1) limited decision-making by men on place of delivery; 2) low risk perception by men and its interference with health facility birth; 3) men's limited resource mobilization for health facility birth and 4) females' perceptions that pregnancy and childbirth are low-risk events. CONCLUSION: This qualitative study demonstrates that apart from well-documented structural barriers to skilled birth attendance in rural Tanzania, the low risk perception among both men and women plays a substantial role. The low risk perception among both men and women affects the use of SBAs in two ways. First, women become negligent and take risk of delivering at home. Second, male partners do not seriously mobilize resources for health facility childbirth. These findings reinforce the urgent need to implement creative programs to increase genuine male participation in facilitation of health facility childbirth. PMID- 29041973 TI - The establishment and application of preimplantation genetic haplotyping in embryo diagnosis for reciprocal and Robertsonian translocation carriers. AB - BACKGROUND: Preimplantation genetic diagnosis (PGD) is now widely used to select embryos free of chromosomal copy number variations (CNV) from chromosome balanced translocation carriers. However, it remains a difficulty to distinguish in embryos between balanced and structurally normal chromosomes efficiently. METHODS: For this purpose, genome wide preimplantation genetic haplotyping (PGH) analysis was utilized based on single nucleotide polymorphism (SNP) microarray. SNPs that are heterozygous in the carrier and, homozygous in the carrier's partner and carrier's family member are defined as informative SNPs. The haplotypes including the breakpoint regions, the whole chromosomes involved in the translocation and the corresponding homologous chromosomes are established with these informative SNPs in the couple, reference and embryos. In order to perform this analysis, a reference either a translocation carrier's family member or one unbalanced embryo is required. The positions of translocation breakpoints are identified by molecular karyotypes of unbalanced embryos. The recombination of breakpoint regions in embryos could be identified. RESULTS: Eleven translocation families were enrolled. 68 blastocysts were analyzed, in which 42 were unbalanced or aneuploid and the other 26 were balanced or normal chromosomes. Thirteen embryos were transferred back to patients. Prenatal cytogenetic analysis of amniotic fluid cells was performed. The results predicted by PGH and karyotypes were totally consistent. CONCLUSIONS: With the successful clinical application, we demonstrate that PGH was a simple, efficient, and popularized method to distinguish between balanced and structurally normal chromosome embryos. PMID- 29041974 TI - Postoperative functional status in patients with supratentorial superficial low grade glioma. AB - BACKGROUND: We investigated the functional status of adult supratentorial superficial low-grade glioma (ASS-LGG) after surgery and analyzed its relevant factors to guide the therapeutic strategy and improve the life quality of these patients. METHODS: Clinical materials from January 2008 to December 2010 in 104 adults with ASS-LGG were analyzed retrospectively. The follow-up period ranged from 6 months to 1.5 years. The logistic regression was used to evaluate the preoperative and postoperative variation of functional status in patients to disclose the relevant factors affecting postoperative functional status, such as age, gender, the duration of symptom, size and location of the tumor, hemisphere, resection degree, and tumor pathologic grade and preoperative Karnofsky performance status (Pre-KPS). RESULTS: Four out of nine candidate factors are related to the postoperative functional status. They are age less than 40 years, the size of tumor less than 5 cm in diameter, tumor located in the right hemisphere, and limited resection of tumor in the eloquent area. CONCLUSIONS: It seems more meaningful to evaluate the functional status of the patients with ASS LGG on the basis of these clinical features, involving age, tumor size, location, and extent of resection. PMID- 29041975 TI - Extreme precipitation and emergency room visits for influenza in Massachusetts: a case-crossover analysis. AB - BACKGROUND: Influenza peaks during the wintertime in temperate regions and during the annual rainy season in tropical regions - however reasons for the observed differences in disease ecology are poorly understood. We hypothesize that episodes of extreme precipitation also result in increased influenza in the Northeastern United States, but this association is not readily apparent, as no defined 'rainy season' occurs. Our objective was to evaluate the association between extreme precipitation (>= 99th percentile) events and risk of emergency room (ER) visit for influenza in Massachusetts during 2002-2008. METHODS: A case crossover analysis of extreme precipitation events and influenza ER visits was conducted using hospital administrative data including patient town of residence, date of visit, age, sex, and associated diagnostic codes. Daily precipitation estimates were generated for each town based upon data from the National Oceanic and Atmospheric Administration. Odds ratio (OR) and 95% confidence intervals (CI) for associations between extreme precipitation and ER visits for influenza were estimated using conditional logistic regression. RESULTS: Extreme precipitation events were associated with an OR = 1.23 (95%CI: 1.16, 1.30) for ER visits for influenza at lag days 0-6. There was significant effect modification by race, with the strongest association observed among Blacks (OR = 1.48 (1.30, 1.68)). CONCLUSIONS: We observed a positive association between extreme precipitation events and ER visits for influenza, particularly among Blacks. Our results suggest that influenza is associated with extreme precipitation in a temperate area; this association could be a result of disease ecology, behavioral changes such as indoor crowding, or both. Extreme precipitation events are expected to increase in the Northeastern United States as climate change progresses. Additional research exploring the basis of this association can inform potential interventions for extreme weather events and influenza transmission. PMID- 29041976 TI - Human pupillary light reflex during successive irradiation with 1-ms blue- and green-pulsed light. AB - BACKGROUND: In the human retina, the contribution of intrinsically photosensitive retinal ganglion cells (ipRGCs) to the regulation of the pupillary response remains poorly understood. The objective of the current study was to determine the response dynamics of the pupillary light reflex to short, successive pulses of light. In order to better assess the roles of ipRGCs and cones, we used pulses of blue and green light. METHODS: Each participant was exposed to 1-ms blue (466 nm) and/or green (527 nm) light pulses simultaneously or separately, with inter stimulus intervals (ISIs) of 0, 250, 500, 750, or 1000 ms. Pupil diameter was measured using an infrared camera system. RESULTS: We found that human pupillary light responses during simultaneous irradiation or successive irradiation with ISIs <= 250 ms were equivalent, though successive irradiation of blue- and green pulsed light with ISIs >= 500 ms induced markedly increased pupillary constriction. CONCLUSIONS: We propose that this result may be related to cell hyperpolarization that occurs in the retina just after the first light stimulus is turned off, with the threshold for this effect being between 250 and 500 ms in the human retina. PMID- 29041977 TI - Perceptions of and barriers to family planning services in the poorest regions of Chiapas, Mexico: a qualitative study of men, women, and adolescents. AB - BACKGROUND: In the poorest regions of Chiapas, Mexico, 50.2% of women in need of contraceptives do not use any modern method. A qualitative study was needed to design effective and culturally appropriate interventions. METHODS: We used purposive maximum-variation sampling to select eight municipalities with a high proportion of residents in the poorest wealth quintile, including urban, rural, indigenous, and non-indigenous communities. We conducted 44 focus group discussions with 292 women, adolescent women, and men using semi-structured topic guides. We analyzed the data through recursive abstraction. RESULTS: There were intergenerational and cultural gaps in the acceptability of family planning, and in some communities family planning use was greatly limited by gender roles and religious objections to contraception. Men strongly influenced family planning choices in many households, but were largely unreached by outreach and education programs due to their work hours. Respondents were aware of many modern methods but often lacked deeper knowledge and held misconceptions about long-term fertility risks posed by some hormonal methods. Acute physical side effects also dissuaded use. The implant was a new and highly acceptable method due to ease of use, low upkeep, and minimal side effects; however, it was perceived as subject to stock-outs. Adolescent women reported being refused services at health facilities and requested more reproductive health information from their parents and schools. Mass and social media are growing sources of reproductive health information. CONCLUSIONS: Our study identifies a number of barriers to family planning that have yet to be adequately addressed by existing programs in Chiapas' poorest regions, and calls for reinvigorated efforts to provide effective, acceptable, and culturally appropriate interventions for these communities. PMID- 29041978 TI - Linc-RoR promotes MAPK/ERK signaling and confers estrogen-independent growth of breast cancer. AB - BACKGROUND: The conversion from estrogen-dependent to estrogen-independent state of ER+ breast cancer cells is the key step to promote resistance to endocrine therapies. Although the crucial role of MAPK/ERK signaling pathway in estrogen independent breast cancer cell growth is well established, the underlying mechanism is not fully understood. METHODS: In this study, we profiled lncRNA expression against a focused group of lncRNAs selected from lncRNA database. CRISPR/Cas9 was employed to knockout (KO) linc-RoR in MCF-7 cells, while rescue experiments were carried out to re-express linc-RoR in KO cells. Colony formation and MTT assays were used to examine the role of linc-RoR in estrogen-independent growth and tamoxifen resistance. Western blot and qRT-PCR were used to determine the change of protein and lncRNA levels, respectively. The expression of DUSP7 in clinical specimens was downloaded from Oncomine ( www.oncomine.org ) and the dataset from Kaplan-Meier Plotter ( http://kmplot.com ) was used to analyze the clinical outcomes in relation to DUSP7. RESULTS: We identified that linc-RoR functions as an onco-lncRNA to promote estrogen-independent growth of ER+ breast cancer. Under estrogen deprivation, linc-RoR causes the upregulation of phosphorylated MAPK/ERK pathway which in turn activates ER signaling. Knockout of linc-RoR abrogates estrogen deprivation-induced ERK activation as well as ER phosphorylation, whereas re-expression of linc-RoR restores all above phenotypes. Moreover, we show that the ERK-specific phosphatase Dual Specificity Phosphatase 7 (DUSP7), also known as MKP-X, is involved in linc-RoR KO-induced repression of MAPK/ERK signaling. Interestingly, linc-RoR KO increases the protein stability of DUSP7, resulting in repression of ERK phosphorylation. Clinical data analysis reveal that DUSP7 expression is lower in ER+ breast cancer samples than that in ER- breast cancer. Moreover, downregulation of DUSP7 expression is associated with poor patient survival. CONCLUSION: Taken together, these results suggest that linc-RoR promotes estrogen-independent growth and activation of MAPK/ERK pathway of breast cancer cells by regulating the ERK-specific phosphatase DUSP7. Thus, this study might help not only in establishing a role for linc-RoR in estrogen-independent and tamoxifen resistance of ER+ breast cancer, but also suggesting a link between linc-RoR and MAPK/ERK pathway. PMID- 29041979 TI - Methotrexate and anti-tumor necrosis factor treatment improves endothelial function in patients with inflammatory arthritis. AB - BACKGROUND: Inflammatory arthritis (IA), including rheumatoid arthritis (RA), ankylosing spondylitis (AS) and psoriatic arthritis (PsA), leads to increased cardiovascular disease occurrence probably due to atherosclerosis. One of the first stages in atherogenesis is endothelial dysfunction (ED). Therefore, we aimed to compare endothelial function (EF) in patients with IA, and to examine the effects of methotrexate (MTX) monotherapy and antitumor necrosis factor (anti TNF) treatment with or without MTX comedication (anti-TNF +/- MTX) on EF. METHODS: From the PSARA observational study, all patients with RA (n = 64), PsA (n = 29), and AS (n = 20) were evaluated for EF. In patients with ED at baseline (n = 40), we evaluated changes in the Reactive Hyperemic Index (RHI) after 6 weeks and 6 months of antirheumatic therapy. RESULTS: In IA patients with ED, RHI significantly improved after 6 weeks (p < 0.001) and 6 months (p < 0.001) of treatment, independent of changes in disease activity parameters. After 6 months, RHI had improved more in the MTX group than in the anti-TNF +/- MTX group, and the difference remained statistically significant after adjustments for potential confounders. Among patients with active RA, AS, and PsA, those with AS appeared to have the worst endothelial function, although they were the youngest. CONCLUSION: Treatment with MTX and anti-TNF +/- MTX was associated with a relatively fast improvement of EF in IA patients with ED, independent of change in disease activity. Therefore, modes of action other than the anti-inflammatory effect may contribute to the EF improvement. After 6 months, the EF improvement was more pronounced in the MTX group than in the anti-TNF +/- MTX group. TRIAL REGISTRATION: Clinicaltrials, NCT00902005 . Registered on 13 May 2009. PMID- 29041980 TI - Comparison of the clinical effectiveness of US grading scoring system vs MRI in the diagnosis of early rheumatoid arthritis (RA). AB - BACKGROUND: As an irreversible disease, a treatment delay can negatively affect treatment response in rheumatoid arthritis (RA). Ultrasound and MRI have played an important role in assessing disease progression and response to treatment in RA for many years. The present study was designed to compare the diagnostic efficacy of ultrasound grading and MRI in early RA. METHODS: In this retrospective study, 62 early RA patients within 12 months of symptom onset were included. DAS28, rheumatoid factor (RF), CRP, ESR, and anti-cyclic citrullinated peptide antibody (CCP) of the patients were measured. Bilateral hand joints and wrists were examined by ultrasonography (US) and MRI; diagnosis outcome was compared. Relationship between DAS28 scores, laboratory parameters, and ultrasound findings were analyzed. RESULTS: Ultrasound and MRI had an equivalent diagnosis value in synovitis, joint effusion, and tenosynovitis. The detection rate of synovitis, arthroedema, and tenosynovitis on ultrasound and MRI was very close (P > 0.05). The detection rate of bone erosion was lower in ultrasonography than that in MRI (P < 0.05). There were significant differences between power Doppler ultrasonography (PDUS) and gray-scale ultrasonography (GSUS) in the diagnosis of synovitis (chi 2 = 3.92, P < 0.05); the sensitivity of GSUS was better than that of PDUS (P < 0.05). PDUS was positively correlated with DAS28, ESR, CRP, and CCP (P < 0.01), but not correlated with RF and disease duration (P > 0.05). GSUS was positively correlated with RF and CRP (P < 0.01), but not correlated with DAS28, CCP, ESR, and disease duration (P > 0.05). Bone erosion was positively correlated with disease duration, CCP, and RF (P < 0.01) and was not correlated with DAS28, ESR, and CRP (P > 0.05). CONCLUSION: Ultrasonography has a high reliability in the diagnosis of early RA in synovitis, joint effusion, tenosynovitis, and bone erosion. Ultrasonography and clinical and laboratory parameters had a great correlativity. Both ultrasound and MRI are effective techniques. In view of the advantages of low cost and convenience, ultrasound may be a better choice during early RA diagnosis. PMID- 29041981 TI - An integrated conceptual framework for evaluating and improving 'understanding' in informed consent. AB - BACKGROUND: The development of understandable informed consent (IC) documents has proven to be one of the most important challenges in research with humans as well as in healthcare settings. Therefore, evaluating and improving understanding has been of increasing interest for empirical research on IC. However, several conceptual and practical challenges for the development of understandable IC documents remain unresolved. METHODS: In this paper, we will outline and systematize some of these challenges. On the basis of our own experiences in empirical user testing of IC documents as well as the relevant literature on understanding in IC, we propose an integrated conceptual model for the development of understandable IC documents. RESULTS: The proposed conceptual model integrates different methods for the participatory improvement of written information, including IC, as well as quantitative methods for measuring understanding in IC. CONCLUSIONS: In most IC processes, understandable written information is an important prerequisite for valid IC. To improve the quality of IC documents, a conceptual model for participatory procedures of testing, revising, and retesting can be applied. However, the model presented in this paper needs further theoretical and empirical elaboration and clarification of several conceptual and practical challenges. PMID- 29041982 TI - Costs related to cardiac arrest management: a systematic review protocol. AB - BACKGROUND: Each year, about 500,000 people suffer a cardiac arrest (either out of-hospital or in-hospital) in the USA. Although significant improvements in survival have occurred through the implementation of complex high-quality protocols of care, global costs related to such management are not clearly described. METHODS: We will undertake a systematic review of the published literature on costs related to the acute phase of cardiac arrest management (from collapse to hospital discharge). The search will cover the period 1991 to present, and we will include studies written in English or in French involving patients with cardiac arrest of all ages, settings (in- and out-of-hospital arrest), countries, and etiology (including traumatic). The primary outcome will include estimates of costs related to cardiac arrest patients' management in various categories (e.g., resuscitation process, in-hospital management as well as rehabilitation and long-term care facilities) and perspectives (e.g., hospital, societal, or third-payer perspective). Study selection will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, and data quality will be assessed by questions adapted from the Drummond economic evaluation checklist. DISCUSSION: This review will provide an estimate of costs related to cardiac arrest management according to the different components of such a management as well as total costs. SYSTEMATIC REVIEW REGISTRATION: International Prospective Register of Systematic Reviews PROSPERO CRD42016046993. PMID- 29041983 TI - PAK5-mediated phosphorylation and nuclear translocation of NF-kappaB-p65 promotes breast cancer cell proliferation in vitro and in vivo. AB - BACKGROUND: Abnormal proliferation is significantly associated with the promotion of malignant tumor. Growing evidence suggest that the signal pathways of p21cdc42/rac1-activated kinase 5 (PAK5) have been found in various tumor progression, however, the role of PAK5 in breast cancer remains largely unclear. METHODS: We evaluated PAK5 and p65 staining in breast cancer tissues (BCTs) and paired non-cancerous tissues (NTs) using tissue microarray (TMA) technology. The functions of PAK5 were studied in vitro and in vivo. Cell Counting Kit-8 (CCK-8) and flow cytometry were performed to determine proliferation of breast cancer cells. Phosphorylation assay and co-immunoprecipitation (co-IP) were employed to identify the regulation mechanism of p65 by PAK5. The activation of Cyclin D1 promoter was measured with luciferase reporter assay. Xenograft models in nude mice were established to explore the roles of PAK5 in breast cancer growth. RESULTS: In this study, we show that PAK5 is highly expressed in breast cancer tissues and the increased PAK5 is significantly associated with breast cancer progression. Overexpression of PAK5 promotes the proliferation and cell-cycle progression by increasing the expression of Cyclin D1 in vitro and in vivo. Mechanistic studies demonstrated that PAK5 can promote the phosphorylation and the nuclear translocation of p65 subunit of nuclear factor-kappaB (NF-kappaB). Furthermore, p65 can directly bind to the promoter of Cyclin D1 and mediate an increase in its protein expression. CONCLUSIONS: Taken together, our findings suggest that PAK5 may serve as a potential prognosis marker and therapeutic target for human breast cancer. PMID- 29041984 TI - Prevalence and multilocus genotyping of Giardia duodenalis in pigs of Shaanxi Province, northwestern China. AB - BACKGROUND: Giardiasis, caused by Giardia duodenalis (syn. Giardia intestinalis, Giardia lamblia), is a significant zoonotic parasitic disease of animals and humans worldwide. Accurate genotyping of G. duodenalis is essential for efficient control and management of giardiasis. The objectives of the present study were to investigate the prevalence and assemblages of giardiasis in pigs in Shaanxi Province, northwestern China, and for the first time study multilocus genotypes (MLGs) in pigs using multilocus genotyping technology in this region. RESULTS: Of 560 faecal samples collected from five farms in Shaanxi Province, 45 were positive for G. duodenalis and significant differences in prevalence were observed among different locations. Differences in prevalence were also detected in pigs of different age groups, with the highest prevalence in sows and the lowest in boars. Two assemblages, A and E, were identified, and a mixed infection of both A and E was identified in one faecal sample. Assemblage E was predominant and widely distributed in all investigated areas and age groups. Genetic viability was detected for both assemblages, and four different multi-locus genotypes (MLGs) within assemblage E were found, MLGE1-MLGE4. CONCLUSIONS: Giardia duodenalis was detected in pigs from Shaanxi Province, northwestern China, and genetic diversity was observed in these infections. Both assemblages A and E were detected, and four distinct MLGs within assemblage E were identified. These findings provide new data for controlling G. duodenalis infection in pigs. PMID- 29041985 TI - Simplified prognostic model for critically ill patients in resource limited settings in South Asia. AB - BACKGROUND: Current critical care prognostic models are predominantly developed in high-income countries (HICs) and may not be feasible in intensive care units (ICUs) in lower- and middle-income countries (LMICs). Existing prognostic models cannot be applied without validation in LMICs as the different disease profiles, resource availability, and heterogeneity of the population may limit the transferability of such scores. A major shortcoming in using such models in LMICs is the unavailability of required measurements. This study proposes a simplified critical care prognostic model for use at the time of ICU admission. METHODS: This was a prospective study of 3855 patients admitted to 21 ICUs from Bangladesh, India, Nepal, and Sri Lanka who were aged 16 years and over and followed to ICU discharge. Variables captured included patient age, admission characteristics, clinical assessments, laboratory investigations, and treatment measures. Multivariate logistic regression was used to develop three models for ICU mortality prediction: model 1 with clinical, laboratory, and treatment variables; model 2 with clinical and laboratory variables; and model 3, a purely clinical model. Internal validation based on bootstrapping (1000 samples) was used to calculate discrimination (area under the receiver operating characteristic curve (AUC)) and calibration (Hosmer-Lemeshow C-Statistic; higher values indicate poorer calibration). Comparison was made with the Acute Physiology and Chronic Health Evaluation (APACHE) II and Simplified Acute Physiology Score (SAPS) II models. RESULTS: Model 1 recorded the respiratory rate, systolic blood pressure, Glasgow Coma Scale (GCS), blood urea, haemoglobin, mechanical ventilation, and vasopressor use on ICU admission. Model 2, named TropICS (Tropical Intensive Care Score), included emergency surgery, respiratory rate, systolic blood pressure, GCS, blood urea, and haemoglobin. Model 3 included respiratory rate, emergency surgery, and GCS. AUC was 0.818 (95% confidence interval (CI) 0.800-0.835) for model 1, 0.767 (0.741-0.792) for TropICS, and 0.725 (0.688-0.762) for model 3. The Hosmer-Lemeshow C-Statistic p values were less than 0.05 for models 1 and 3 and 0.18 for TropICS. In comparison, when APACHE II and SAPS II were applied to the same dataset, AUC was 0.707 (0.688 0.726) and 0.714 (0.695-0.732) and the C-Statistic was 124.84 (p < 0.001) and 1692.14 (p < 0.001), respectively. CONCLUSION: This paper proposes TropICS as the first multinational critical care prognostic model developed in a non-HIC setting. PMID- 29041986 TI - Fluorescence optical imaging in pediatric patients with inflammatory and non inflammatory joint diseases: a comparative study with ultrasonography. AB - BACKGROUND: Valid detection of arthritis is essential in differential diagnosis of joint pain. Indocyanin green (ICG)-enhanced fluorescence optical imaging (FOI) is a new imaging method that visualizes inflammation in wrist and finger joints. Objectives of this study were to compare FOI with ultrasonography (US, by gray scale (GS) and power Doppler (PD)) and clinical examination (CE) and to estimate the predictive power of FOI for discrimination between inflammatory and non inflammatory juvenile joint diseases. METHODS: FOI and GSUS/PDUS were performed in both hands of 76 patients with joint pain (53 with juvenile idiopathic arthritis (JIA), 23 with non-inflammatory joint diseases). Inflammation was graded by a semiquantitative score (grades 0-3) for each imaging method. Joints were defined clinically active if swollen or tender with limited range of motion. Sensitivity and specificity of FOI in three phases dependent on ICG enhancement (P1-P3) were analyzed with CE and GSUS/PDUS as reference. RESULTS: For JIA patients, FOI had an overall sensitivity of 67.3%/72.0% and a specificity of 65.0%/58.8% with GSUS/PDUS as reference; specificity was highest in P3 (GSUS 94.3%/PDUS 91.7%). FOI was more sensitive for detecting clinically active joints than GSUS/PDUS (75.2% vs 57.3%/32.5%). In patients with non-inflammatory joint diseases both FOI and US showed positive (i.e., pathological) findings (25% and 14% of joints). The predictive value for discrimination between inflammatory and non-inflammatory joint diseases was 0.79 for FOI and 0.80/0.85 for GSUS/PDUS. CONCLUSIONS: Dependent on the phase evaluated, FOI had moderate to good agreement with CE and US. Both imaging methods revealed limitations and should be interpreted cautiously. FOI may provide an additional diagnostic method in pediatric rheumatology. TRIAL REGISTRATION: Deutsches Register Klinischer Studien DRKS00012572 . Registered 31 July 2017. PMID- 29041987 TI - The effects of melatonin on colonization of neonate spermatogonial mouse stem cells in a three-dimensional soft agar culture system. AB - BACKGROUND: Melatonin is a pleiotropic hormone with powerful antioxidant activity both in vivo and in vitro. The present study aimed to investigate the effects of melatonin on the proliferation efficiency of neonatal mouse spermatogonial stem cells (SSCs) using a three-dimensional soft agar culture system (SACS) which has the capacity to induce development of SSCs similar to in vivo conditions. METHODS: SSCs were isolated from testes of neonate mice and their purities were assessed by flow cytometry using PLZF antibody. Isolated testicular cells were cultured in the upper layer of the SACS in alphaMEM medium in the absence or presence of melatonin extract for 4 weeks. RESULTS: The identity of colonies was confirmed by alkaline phosphatase staining and immunocytochemistry using PLZF and alpha6 integrin antibodies. The number and diameter of colonies of SSCs in the upper layer were evaluated at days 14 and 28 of culture. The number and diameter of colonies of SSCs were significantly higher in the melatonin group compared with the control group. The levels of expression of ID-4 and Plzf, unlike c-kit, were significantly higher in the melatonin group than in the control group. CONCLUSIONS: Results of the present study show that supplementation of the culture medium (SACS) with 100 MUM melatonin significantly decreased reactive oxygen species (ROS) production in the treated group compared with the control group, and increased SSC proliferation. PMID- 29041988 TI - Characterization of novel microneme adhesive repeats (MAR) in Eimeria tenella. AB - BACKGROUND: The phylum Apicomplexa comprises a wide variety of parasites of significant medical and economic relevance. These parasites have extremely different host and tissue tropisms; for example Toxoplasma gondii can invade virtually any nucleated cell and infect almost all warm-blooded vertebrates, whereas Eimeria tenella infects only chickens and is restricted in its growth to epithelial cells of the caecum. Proteins released from the microneme secretory organelles (MICs) are critical for apicomplexan invasion of host cells and allow parasites to bind a diverse range of host cell oligosaccharide epitopes. MICs bear modular arrangements of sequences with adhesive proteins and interestingly the sialic-acid binding MAR (microneme adhesive repeat) domain containing proteins (MCPs) are suggested to make significant contributions to the different host and tissue tropisms of T. gondii and E. tenella. RESULTS: In this study, we evaluated the binding capacity of Type I MAR domains from novel E. tenella MCPs. Variants of the previously described HxT motif were analysed showing that HxT and VxT variants bind, whereas HxS and YxE variants did not. One of these MCP containing a single MAR (EtMCP2) showed an apical localization when expressed as a fusion with the fluorescent reporter mCherry in transgenic populations and a similar pattern of transcripts per zoite during endogenous development in vitro as the well-characterised microneme protein EtMIC2. CONCLUSIONS: Variation in the binding properties of the MAR of different EtMCPs was confirmed and their ability to bind a wider range of sialic acids and terminal linkages should be studied. In addition, transgenesis technology has been used for first time in Eimeria parasites as a rapid tool for the study of endogenous protein localization by fusion with a fluorescent reporter. PMID- 29041989 TI - Links of gut microbiota composition with alcohol dependence syndrome and alcoholic liver disease. AB - BACKGROUND: Alcohol abuse has deleterious effects on human health by disrupting the functions of many organs and systems. Gut microbiota has been implicated in the pathogenesis of alcohol-related liver diseases, with its composition manifesting expressed dysbiosis in patients suffering from alcoholic dependence. Due to its inherent plasticity, gut microbiota is an important target for prevention and treatment of these diseases. Identification of the impact of alcohol abuse with associated psychiatric symptoms on the gut community structure is confounded by the liver dysfunction. In order to differentiate the effects of these two factors, we conducted a comparative "shotgun" metagenomic survey of 99 patients with the alcohol dependence syndrome represented by two cohorts-with and without liver cirrhosis. The taxonomic and functional composition of the gut microbiota was subjected to a multifactor analysis including comparison with the external control group. RESULTS: Alcoholic dependence and liver cirrhosis were associated with profound shifts in gut community structures and metabolic potential across the patients. The specific effects on species-level community composition were remarkably different between cohorts with and without liver cirrhosis. In both cases, the commensal microbiota was found to be depleted. Alcoholic dependence was inversely associated with the levels of butyrate producing species from the Clostridiales order, while the cirrhosis-with multiple members of the Bacteroidales order. The opportunist pathogens linked to alcoholic dependence included pro-inflammatory Enterobacteriaceae, while the hallmarks of cirrhosis included an increase of oral microbes in the gut and more frequent occurrence of abnormal community structures. Interestingly, each of the two factors was associated with the expressed enrichment in many Bifidobacterium and Lactobacillus-but the exact set of the species was different between alcoholic dependence and liver cirrhosis. At the level of functional potential, the patients showed different patterns of increase in functions related to alcohol metabolism and virulence factors, as well as pathways related to inflammation. CONCLUSIONS: Multiple shifts in the community structure and metabolic potential suggest strong negative influence of alcohol dependence and associated liver dysfunction on gut microbiota. The identified differences in patterns of impact between these two factors are important for planning of personalized treatment and prevention of these pathologies via microbiota modulation. Particularly, the expansion of Bifidobacterium and Lactobacillus suggests that probiotic interventions for patients with alcohol-related disorders using representatives of the same taxa should be considered with caution. Taxonomic and functional analysis shows an increased propensity of the gut microbiota to synthesis of the toxic acetaldehyde, suggesting higher risk of colorectal cancer and other pathologies in alcoholics. PMID- 29041992 TI - Understanding Patterns of Socioeconomic and Demographic Factors Along With Health Services Provider Availability for Zika Outbreak in South Florida. AB - In this study, we analyzed the patterns of socioeconomic and demographic factors along with health services provider availability for the current Zika outbreak in Miami-Dade County, South Florida. We used Center for Consumer Information & Insurance Oversight (CCIIO) Machine-Readable Public Use Files (MR-PUFs) to examine provider availability in combination with socioeconomic and demographic factors that could potentially lead to healthcare disparities between any underserved population of the Wynwood neighborhood and the broader population of Miami-Dade County. MR-PUFs contain public provider-level data from states that are participating in the Federally Facilitated Marketplace. According to CCIIO, an issuer of a Qualified Health Plan that uses a provider network must maintain a network that is sufficient in the number and types of providers, including providers that specialize in mental-health and substance-use disorder services, to assure that all services will be accessible to enrollees without unreasonable delay. (Disaster Med Public Health Preparedness. 2018;12:455-459). PMID- 29041991 TI - Neutrophil lymphocyte ratio and duration of prior anti-angiogenic therapy as biomarkers in metastatic RCC receiving immune checkpoint inhibitor therapy. AB - BACKGROUND: There is an unmet need to determine factors predictive of clinical benefit, to guide therapeutic sequencing and selection in metastatic RCC (mRCC). We evaluated clinical factors such as the neutrophil lymphocyte ratio (NLR) and duration of prior anti-vascular endothelial growth factor (VEGF) inhibitors, as predictors of response rate, progression free survival (PFS) and overall survival (OS) in mRCC patients treated with immune checkpoint inhibitor (ICI). METHODS: Regulatory approval was obtained. A single center retrospective chart review of mRCC patients at Karmanos Cancer Institute, treated with ICI based therapy (PD 1/PD-L1 inhibitors) was conducted. Data were collected on demographics, smoking status, prognostic scoring (Memorial Sloan Kettering and Heng criteria), NLR pretherapy, post 1 and 4 doses of ICI, and duration of prior anti-VEGF therapy >=6 months or <6. RESULTS: 42 patients were evaluated with median age of 61 years (range, 24-85). Pretherapy NLR < 3 and >=3 was seen in 19 (45%) and 23 (55%) patients, respectively. 24 (57%) and 18 (43%) patients had prior anti-VEGF inhibitors for a duration of >=6 months and <6 months, respectively. 12 (29%), 22 (52%) and 8 (19%) patients had favorable, intermediate and poor risk disease based on Heng criteria, respectively. Multivariable analysis showed pretherapy NLR >=3 was predictive of shorter PFS and OS when treated with ICI with median 3.08 months and 13.50 months, respectively, versus 15.57 months and not reached for NLR < 3 (adjusted p-values =0.003 and 0.025, respectively). Prior anti-VEGF therapy <6 months was predictive of increased likelihood of benefit from ICI therapies (adjusted p = 0.028). The median PFS was 3.72 months and 14.33 months, respectively, in cases with prior anti-VEGF therapy for >=6 months and <6 months. CONCLUSION: Pretherapy NLR <3 and duration of prior anti-VEGF therapy of <6 months, are independent statistically significant predictors of longer PFS and OS with ICI therapy in mRCC. Validation is required in a larger sample size with multi-institutional collaboration. PMID- 29041993 TI - Development of a Contextualized Version of the Multiple Errands Test for People with Substance Dependence. AB - BACKGROUND: Substance dependence is associated with deficits in several areas of executive functioning, such as planning and multitasking. Traditional tests of executive functioning have been criticized for their low ecological validity. Shallice and Burgess (1991) developed the Multiple Errands Test (MET), where participants are required to perform multiple tasks in a real-world setting. In this study, we aimed to adapt the MET for use in populations with substance dependence. OBJECTIVES: This study aimed to: (1) examine the applicability of a contextualized version of the Multiple Errands Test, namely, the Multiple Errands Test - Contextualized Version (MET-CV); (2) study the testing context reliability and convergent validity of MET-CV scores; (3) compare the performance of people with substance dependence to a control group. METHODS: Data were collected from 60 participants with substance dependence and 30 healthy controls. Both groups performed a neuropsychological assessment, which consisted of the MET-CV and traditional neuropsychological tests (Letter Number Sequencing, Zoo Map Test, Revised Strategy Application Test, Information Sampling Test, Stockings of Cambridge). RESULTS: The MET-CV has adequate testing context reliability and moderate convergent validity relative to traditional planning measures. People with substance dependence (PWSD) showed significant deficits in executive function tests compared to healthy controls, most notably on the MET-CV rather than on traditional neuropsychological tests. CONCLUSIONS: The MET-CV can be feasibly applied in the context of therapeutic communities treatment in PWSD. The MET-CV showed adequate reliability and validity, and detected planning deficits in PWSD. (JINS, 2018, 24, 347-359). PMID- 29041990 TI - Piceatannol induced apoptosis through up-regulation of microRNA-181a in melanoma cells. AB - BACKGROUND: Melanoma took top position among the lethal cancers and, despite there have been some great attempts made to increase the natural life of patients with metastatic disease, long-lasting and complete remissions are few. Piceatannol, owns the similar function as resveratrol, has been defined as an anti-cancer agent playing important role in inhibition of proliferation, migration and metastasis in various cancer. Thus, we aim to investigate the anti cancer effect and mechanisms of piceatannol in melanoma cells. METHODS: Melanoma cell lines WM266-4 and A2058 were treated either with or without piceatannol. Cell viability and cell apoptosis were assessed by using MTT and Annexin V/PI assay, respectively. Cells were transfected with specific miRNA using Lipfectamine 2000. miRNA bingding ability to 3'-UTR region within specific gene was assed by firefly luciferase analysis. Gene and protein expression was eveluated by qRT-PCR and western blot analysis, respectively. RESULTS: Our study showed that piceatannol inhibited WM266-4 and A2058 cells growth and induced apoptosis. Totally, 16 differentially expressed miRNAs were screened out including 8 up-regulated and 8 down-regulated miRNAs. Expression level of miR 181a is significantly higher in piceatannol-treated cells than normal control and is lower in melanoma cancer tissues than its adjacent normal tissues. Bcl-2 is a target gene of miR-181a. Moreover, silencing of miR-181a reverses the decrease of cell viability induced by piceatannol in WM266-4 and A2058 cells. Taken together, present study uncovered the ability of piceatannol to repress melanoma cell growth and clarified the contribution of miR-181a in the anticancer role of piceatannol. CONCLUSION: The present study proposes that piceatannol can be taken into account to be a hopeful anticancer agent for melanoma. PMID- 29041994 TI - Hospital Surge Capacity: A Web-Based Simulation Tool for Emergency Planners. AB - The National Center for the Study of Preparedness and Catastrophic Event Response (PACER) has created a publicly available simulation tool called Surge (accessible at http://www.pacerapps.org) to estimate surge capacity for user-defined hospitals. Based on user input, a Monte Carlo simulation algorithm forecasts available hospital bed capacity over a 7-day period and iteratively assesses the ability to accommodate disaster patients. Currently, the tool can simulate bed capacity for acute mass casualty events (such as explosions) only and does not specifically simulate staff and supply inventory. Strategies to expand hospital capacity, such as (1) opening unlicensed beds, (2) canceling elective admissions, and (3) implementing reverse triage, can be interactively evaluated. In the present application of the tool, various response strategies were systematically investigated for 3 nationally representative hospital settings (large urban, midsize community, small rural). The simulation experiments estimated baseline surge capacity between 7% (large hospitals) and 22% (small hospitals) of staffed beds. Combining all response strategies simulated surge capacity between 30% and 40% of staffed beds. Response strategies were more impactful in the large urban hospital simulation owing to higher baseline occupancy and greater proportion of elective admissions. The publicly available Surge tool enables proactive assessment of hospital surge capacity to support improved decision-making for disaster response. (Disaster Med Public Health Preparedness. 2018;12:513-522). PMID- 29041995 TI - Reproducibility of Cognitive Profiles in Psychosis Using Cluster Analysis. AB - OBJECTIVES: Cognitive dysfunction is a core symptom dimension that cuts across the psychoses. Recent findings support classification of patients along the cognitive dimension using cluster analysis; however, data-derived groupings may be highly determined by sampling characteristics and the measures used to derive the clusters, and so their interpretability must be established. We examined cognitive clusters in a cross-diagnostic sample of patients with psychosis and associations with clinical and functional outcomes. We then compared our findings to a previous report of cognitive clusters in a separate sample using a different cognitive battery. METHODS: Participants with affective or non-affective psychosis (n=120) and healthy controls (n=31) were administered the MATRICS Consensus Cognitive Battery, and clinical and community functioning assessments. Cluster analyses were performed on cognitive variables, and clusters were compared on demographic, cognitive, and clinical measures. Results were compared to findings from our previous report. RESULTS: A four-cluster solution provided a good fit to the data; profiles included a neuropsychologically normal cluster, a globally impaired cluster, and two clusters of mixed profiles. Cognitive burden was associated with symptom severity and poorer community functioning. The patterns of cognitive performance by cluster were highly consistent with our previous findings. CONCLUSIONS: We found evidence of four cognitive subgroups of patients with psychosis, with cognitive profiles that map closely to those produced in our previous work. Clusters were associated with clinical and community variables and a measure of premorbid functioning, suggesting that they reflect meaningful groupings: replicable, and related to clinical presentation and functional outcomes. (JINS, 2018, 24, 382-390). PMID- 29041996 TI - Preparedness Training Programs for Working With Deaf and Hard of Hearing Communities and Older Adults: Lessons Learned From Key Informants and Literature Assessments. AB - OBJECTIVES: The objectives of this study were to (1) identify available training programs for emergency response personnel and public health professionals on addressing the needs of Deaf and hard of hearing individuals and older adults, (2) identify strategies to improve these training programs, and (3) identify gaps in available training programs and make recommendations for addressing these gaps. METHODS: A literature review was conducted to identify relevant training programs and identify lessons learned. Interviews were conducted by telephone or email with key informants who were subject matter experts who worked with Deaf and hard of hearing persons (n=11) and older adults (n=11). RESULTS: From the literature, 11 training programs targeting public health professionals and emergency response personnel serving Deaf and hard of hearing individuals (n=7) and older adults (n=4) were identified. The 4 training programs focused on older adults had corresponding evaluations published in the literature. Three (43%) of the 7 training programs focused on Deaf and hard of hearing persons included individuals from the affected communities in the development and implementation of the training. Key informant interviews identified common recommendations for improving training programs: (1) training should involve collaboration across different emergency, state, federal, and advocacy agencies; (2) training should involve members of affected communities; (3) training should be more widely accessible and affordable; and (4) training should teach response personnel varied communication techniques relevant to the Deaf and hard of hearing and older adult communities. CONCLUSIONS: Developing effective, accessible, and affordable training programs for emergency response personnel working with Deaf and hard of hearing persons, some of whom belong to the older adult population, will require a collaborative effort among emergency response agencies, public health organizations, and members of the affected communities. (Disaster Med Public Health Preparedness. 2018;12:606-614). PMID- 29041997 TI - A Web-based module and online video for pain management education for caregivers of children with fractures: A randomized controlled trial. AB - : IntroductionOver 80% of children experience compromise in functioning following a fracture. Digital media may improve caregiver knowledge of managing fracture pain at home. OBJECTIVES: To determine whether an educational video was superior to an interactive web-based module (WBM) and verbal instructions, the standard of care (SOC). METHODS: This randomized trial included caregivers of children 0-17 years presenting to the emergency department (ED) with non-operative fractures. Primary outcome was the gain score (pre-post intervention) on a 21-item questionnaire testing knowledge surrounding pain recognition and management for children with fractures. Secondary outcomes included survey of caregiver confidence in managing pain (five-item Likert scale), number of days with difficulty sleeping, before return to a normal diet, and work/school missed. RESULTS: We analyzed 311 participants (WBM 99; video 108; SOC 104) with a mean (SD) child age of 9.6 (4.2) years, of which 125/311 (40.2%) were female. The video (delta=2.3, 95% CI: 1.3, 3.3; p<0.001) and WBM (delta=1.6; 95% CI: 0.5, 2.6; p=0.002) groups had significantly greater gain scores than the SOC group. The mean video gain score was not significantly greater than WBM (delta=0.7; 95% CI: -0.3, 1.8; p=0.25). There were no significant differences in caregiver confidence (p=0.4), number of absent school days (p=0.43), nights with difficulty sleeping (p=0.94), days before return to a normal diet (p=0.07), or workdays missed (p=0.95). CONCLUSIONS: A web-based module and online video are superior to verbal instructions for improving caregiver knowledge on management of children's fracture pain without improvement in functional outcomes. PMID- 29041998 TI - Rethinking dementias. PMID- 29041999 TI - Electrodiagnostic and nerve ultrasonographic features in upper limb spasticity: an observational study. AB - To better understand the effects of spasticity on peripheral nerves, we evaluated the electrodiagnostic and nerve ultrasonographic features of the median and ulnar nerves in adults with upper limb spasticity. Twenty chronic stroke patients with spastic hemiparesis underwent nerve conduction study and nerve ultrasonography of the median and ulnar nerves at both upper limbs. Affected versus unaffected upper limb comparisons showed significant differences in the median and ulnar nerve distal motor latencies, compound muscle action potentials and F-wave minimal latencies. Furthermore, we observed a significantly greater median nerve crosssectional area at the elbow of the affected upper limb compared with the unaffected one. Our findings confirmed electrodiagnostic asymmetries and nerve ultrasonographic abnormalities in the affected versus the unaffected upper limb after stroke. Slight changes in lower motor neuron activity and spasticity might contribute to these alterations. PMID- 29042000 TI - Nociceptive blink reflex habituation biofeedback in migraine. AB - Reduced habituation of the nociceptive blink reflex (NBR) is considered a trait marker for genetic predisposition to migraine. In this open-label randomized controlled study, we aimed to test the efficacy of a biofeedback training based on learning of habituation of the NBR (NBR biofeedback) compared with pharmacological (topiramate) treatment and NBR biofeedback plus topiramate treatment in a cohort of migraine without aura patients eligible for prophylaxis. Thirty-three migraine patients were randomly assigned to three months of treatment with: 1) NBR biofeedback, 2) NBR biofeedback plus topiramate 50 mg (b.i.d.), or 3) topiramate 50 mg (b.i.d.). Frequency of headache and disability changes were the main study outcomes. Anxiety, depression, sleep, fatigue, quality of life, allodynia and pericranial tenderness were also evaluated. NBR biofeedback reduced the R2 area, without improving R2 habituation. However, it reduced the frequency of headache and disability, similarly to the combined treatment and topiramate alone. Reduced habituation of the NBR is a stable neurophysiological pattern, scarcely modifiable by learning procedures. Training methods able to act on stress-related responses may modulate cortical mechanisms inducing migraine onset and trigeminal activation under stressful trigger factors. PMID- 29042001 TI - Recovery from vegetative state of patients with a severe brain injury: a 4-year real-practice prospective cohort study. AB - Patients who have suffered severe traumatic or nontraumatic brain injuries can show a progressive recovery, transitioning through a range of clinical conditions. They may progress from coma to a vegetative state (VS) and/or a minimally conscious state (MCS). A longer duration of the VS is known to be related to a lower probability of emergence from it; furthermore, the literature seems to lack evidence of late improvements in these patients. This real-practice prospective cohort study was conducted in inpatients in a VS following a severe brain injury, consecutively admitted to a vegetative state unit (VSU). The aim of the study was to assess their recovery in order to identify variables that might increase the probability of a VS patient transitioning to MCS. Rehabilitation treatment included passive joint mobilisation and helping/placing patients into an upright sitting position on a tilt table. All the patients underwent a specific assessment protocol every month to identify any emergence, however late, from the VS. Over a 4-year period, 194 patients suffering sequelae of a severe brain injury, consecutively seen, had an initial Glasgow Coma Scale score <= 8. Of these, 63 (32.5%) were in a VS, 84 (43.3%) in a MCS, and 47 (24.2%) in a coma; of the 63 patients admitted in a VS, 49 (57.1% males and 42.9% females, mean age 25.34 +/- 19.12 years) were transferred to a specialist VSU and put on a slow-to recover brain injury programme. Ten of these 49 patients were still in a VS after 36 months; of these 10, 3 recovered consciousness, transitioning to a MCS, 2 died, and 5 remained in a VS during the last 12 months of the observation. Univariate analysis identified male sex, youth, a shorter time from onset of the VS, diffuse brain injury, and the presence of status epilepticus as variables increasing the likelihood of transition to a MCS. Long-term monitoring of patients with chronic disorders of consciousness should be adequately implemented in order to optimise their access to rehabilitation services. PMID- 29042002 TI - Obstructive sleep apnea syndrome in Parkinson's disease and other parkinsonisms. AB - An association of obstructive sleep apnea syndrome (OSAS) and other sleep disordered breathing (SDB) with Parkinson's disease (PD) has been reported in some small studies. In the present study we investigated the occurrence of SDB in a large consecutive outpatient series. This is a case-control study in subjects attending a neurological clinic where all patients were screened for SDB by means of sleep-wake history, Epworth Sleepiness Scale, and full-night polysomnography, when indicated. 3194 patients were recruited. Of these, 194 were affected by PD and 77 by other parkinsonisms. Snoring, excessive daytime sleepiness and OSAS were more common in patients with PD or parkinsonisms (40.59, 5.9, and 4.06%) than in controls (35.58, 2.19, and 2.09%). Our study suggests an increased frequency of OSAS and other SDB in PD and parkinsonisms. Early detection and management of these disorders may have a substantial impact on quality of life and survival in these patients. PMID- 29042003 TI - Pisa syndrome in Parkinson's disease: electromyographic quantification of paraspinal and non-paraspinal muscle activity. AB - Patients with Parkinson's disease (PD) and Pisa syndrome (PS) may present tonic dystonic or compensatory (i.e. acting against gravity) hyperactivity in the paraspinal and non-paraspinal muscles. Electromyographic (EMG) activity was measured in nine patients with PD and PS, three with PD without PS, and five healthy controls. Fine-wire intramuscular electrodes were inserted bilaterally into the iliocostalis lumborum (ICL), iliocostalis thoracis (ICT), gluteus medius (GM), and external oblique (EO) muscles. The root mean square (RMS) of the EMG signal was calculated and normalized for each muscle. In stance condition, side to-side muscle activity comparisons showed a higher RMS only for the contralateral ICL in PD patients with PS (p=0.028). Moreover, with increasing degrees of lateral flexion, the activity of the EO and the ICL muscles progressively increased and decreased, respectively. The present data suggest that contralateral paraspinal muscle activity plays a crucial compensatory role and can be dysfunctional in PD patients with PS. PMID- 29042004 TI - Quantitative, functional MRI and neurophysiological markers in a case of Gerstmann-Straussler-Scheinker syndrome. AB - Gerstmann-Straussler-Scheinker syndrome (GSS) is an inherited autosomal dominant prion disease, caused by a codon 102 proline to leucine substitution (P102L) in the prion protein gene (PRNP). We describe the case of a 40-year-old male, affected by a slowly progressive gait disturbance, leg weakness and cognitive impairment. Genomic DNA revealed a point mutation of PRNP at codon 102, resulting in P102L, and the diagnosis of GSS was confirmed. Somatosensory evoked potentials showed alterations of principal parameters, particularly in the right upper and lower limbs. Laser-evoked potentials were indicative of nociceptive system impairment, especially in the right upper and lower limbs. Conventional magnetic resonance imaging (MRI) revealed marked atrophy of the vermis and cerebellar hemispheres and mild atrophy of the middle cerebellar peduncles and brainstem, as confirmed by a brain volume automatic analysis. Resting-state functional MRI showed increased functional connectivity in the bilateral visual cortex, and decreased functional connectivity in the bilateral frontal pole and supramarginal and precentral gyrus. Albeit limited to a single case, this is the first study to assess structural and functional connectivity in GSS using a multimodal approach. PMID- 29042005 TI - Analysis of Italian regulations on pathways of care for patients in a vegetative or minimally conscious state. AB - Different rehabilitation models for persons diagnosed with disorders of consciousness have been proposed in Europe during the last decade. In Italy, the Ministry of Health has defined a national healthcare model, although, to date, there is a lack of information on how this has been implemented at regional level. The INCARICO project collected information on different regional regulations, analysing ethical aspects and mapping care facilities (numbers of beds and medical units) in eleven regional territories. The researchers found a total of 106 laws; differences emerged both between regions and versus the national model, showing that patients with the same diagnosis may follow different pathways of care. An ongoing cultural shift from a treatment-oriented medical approach towards a care-oriented integrated biopsychosocial approach was found in all the welfare and healthcare systems analysed. Future studies are needed to explore the relationship between healthcare systems and the quality of services provided. PMID- 29042006 TI - Comparative study of cephalometric measurements using 3 imaging modalities. AB - BACKGROUND: The authors conducted a study to compare 2-dimensional (2D) lateral cephalometric radiography (LCR), 2D cone-beam computer tomographic (CBCT) generated cephalogram and 3-dimensional (3D) CBCT for assessing cephalometric measurements. METHODS: The authors took 2D LCR, 2D CBCT-generated cephalogram, and 3D CBCT images involving 60 participants. They obtained 11 angular and 11 linear measurements for all images. They used 1-way analysis of variance and the Fisher least significant difference test for statistical comparisons. The authors used Pearson correlation and Pearson chi2 test to assess the relationship of these imaging modalities for vertical cephalometric analyses. RESULTS: Significant differences existed between the 2D cephalograms (LCR and CBCT generated cephalogram) and the 3D CBCT in 2 angular measurements (maxillary first incisor-nasion (N) point A [A] and mandibular first incisor-N point B (B) (P = .027 and P < .001, respectively) and 5 linear measurements (N menton[Me]/sella gonion [Go], condylion [Co]A, Co gnathion, Go-Me and anterior nasal spine posterior nasal spine) (P < .004). These measurement values with significant differences were generally greater (approximately 5 degrees for angular measurements and 10 millimeters for linear measurements) on the 3D CBCT scans than on the 2D cephalograms. No significant difference was found between the 2 2D cephalograms (P > .164). No significant difference was found among the 3 imaging modalities for the vertical cephalometric analyses (P > .466). CONCLUSIONS: Significant differences existed between the 2D cephalograms (LCR and CBCT generated cephalogram) and the 3D CBCT scans in 2 angular and 5 linear measurements. The 2 2D cephalograms were similar for cephalometric measurements. The 3 imaging modalities had no significant difference for the vertical cephalometric analyses. CBCT might not add value for every orthodontic situation. PRACTICAL IMPLICATIONS: These results find the values of cephalometric measurements on 3D CBCT scans may be greater than on the conventional LCR for some parameters. The 2D CBCT-generated cephalogram could be an alternative to the conventional LCR for patients whose large-field-of-view CBCT images are already available. PMID- 29042007 TI - Direct Comparison of the Edwards Intuity Elite and Sorin Perceval S Rapid Deployment Aortic Valves. AB - BACKGROUND: Rapid deployment aortic valve replacement (RDAVR) has emerged as an attractive alternative to conventional aortic valve replacement. This single center study directly compared two commercially available rapid deployment valves with regard to clinical outcomes, valve-related complications, and hemodynamic performance. METHODS: A total of consecutive 156 patients underwent RDAVR with the Intuity Elite (Edwards Lifesciences, Irvine, CA [Intuity group, n = 117] or the Perceval S (Sorin Group Italia Srl, Saluggia, Italy [Perceval group, n = 39]) between September 2012 and March 2016 at our institution. Perioperative data, including 30-day all-cause mortality, and echocardiographic measurements were assessed and retrospectively analyzed from our institutional database. RESULTS: Preoperative variables, including mean age (77 +/- 5 years), European System for Cardiac Operative Risk Evaluation (6.8 +/- 2.1), and body mass index (27 +/- 5 kg/m2), did not differ between groups. More male patients (60% versus 15%) with a higher body surface area (1.9 +/- 0.2 m2 versus 1.7 +/- 0.2 m2) and body weight (78 +/- 13 kg versus 71 +/- 15 kg) were in the Intuity group compared with the Perceval group, respectively (p < 0.05). Implanted RDAVR size (23.3 +/- 1.8 mm versus 23.4 +/- 1.5 mm), concomitant coronary artery bypass graft surgery (48% versus 33%), number of grafts, cardiopulmonary bypass, and aortic clamp time were comparable between the Intuity group and the Perceval group. Thirty-day mortality (Intuity 2.6% versus Perceval 5.1%) and valve-related complications (Intuity 12.0% versus Perceval 20.5%), including postoperative pacemaker implantation (Intuity 8.5% versus Perceval 12.8%), did not differ between groups. At discharge echocardiography, indexed effective orifice area was higher in the Intuity group, but peak or mean pressure gradients were comparable between groups. CONCLUSIONS: Performing RDAVR with the Intuity and Perceval rapid deployment valves provides comparable good clinical outcomes and valve hemodynamics, with low valve-related complication rates. The rate of pacemaker implantation was comparable for both rapid deployment valves, ranging from 8% to 13%. PMID- 29042008 TI - Discussion of: "Risky business? Investigating outcomes of patients undergoing urgent laparoscopic appendectomy on antithrombotic therapy". PMID- 29042009 TI - Identification of new CpG oligodeoxynucleotide motifs that induce expression of interleukin-1beta and nitric oxide in avian macrophages. AB - Unmethylated CpG motifs are known to stimulate mammalian toll-like receptor-9 expressing cells such as macrophages. However, the magnitude of immune stimulation by CpG-motif can be sequence- and host-specific, implying the importance of identifying new immune-stimulatory motifs. This study aimed to determine the frequency distribution of 256 unique hexamers CpG-motifs in the Salmonella genome and to characterize their immune-stimulatory activity in avian host. We synthesized 256 CpG oligodeoxynucleotides (CpG-ODNs) each containing triplicates of a unique hexamer CpG-motif and tested their ability to induce expression of pro-inflammatory cytokine IL-1beta in avian macrophages using q-RT PCR in four rounds of screening assays. CpG-ODNs that induced significantly higher IL-1beta expression were also subjected to Griess assay to determine their ability to induce nitric oxide (NO) production in avian macrophages. This analysis resulted in identification of 7 CpG-ODNs that consistently induced IL 1beta expression and NO production in avian macrophages at a level similar to the expression achieved using commercially available PTO-CpG-ODN 2007 and LPS derived from Salmonella. To the best of our knowledge, this is the first report showing comprehensive screening of all possible unique CpG hexamer (n=256) motifs for their ability to induce IL-1beta expression and NO production in avian macrophages. We also show that the newly identified CpG-motifs with high immune stimulatory activity are widely distributed in Salmonella genome. The CpG-ODNs identified in this study may serve as promising immunoprophylactics to potentiate innate responses in chickens against Salmonella and other infectious agents. PMID- 29042010 TI - Purification of chicken IgY by binding capture using elastin-like polypeptide tagged immunoglobulin-binding domain of streptococcal protein G. AB - Chicken egg yolk immunoglobulin (IgY) is a superior alternative to mammalian immunoglobulin, but its practical application is limited due to the complex purification procedure. In this study, the C2 domain of streptococcal protein G (SPG) with the binding affinity for chicken IgY was expressed in E. coli as an elastin-like polypeptide (ELP) fusion protein, and purified to a high purity by inverse transition cycling (ITC). Binding experiments showed that chicken IgY could bind to and eluted off the ELP-C2 fusion protein in pH-, temperature- and/or time-dependent manners. By using the ELP-C2 protein, a simple chicken IgY purification method was developed, and its purification performance was compared with that of ammonium sulfate precipitation and ethanol fractionation. Quantitative SDS-PAGE analysis showed that the ELP-C2 binding capture method provided a chicken IgY purity of 96.3% and a recovery of 64%, both of which were significantly higher than that of the two traditional methods The ELP-C2 binding capture method could be accomplished within 3h, in contrast to 30.3h for ammonium sulfate precipitation or 4.3h for ethanol fractionation. These data suggest that the ELP-C2 binding capture was a simple, efficient and cost-effective method for purification of chicken IgY. PMID- 29042012 TI - Molecular cloning and functional characterization of peptidoglycan recognition protein OmPGRP-L2 from the rainbow trout, Oncorhynchus mykiss. AB - Peptidoglycan recognition proteins (PGRPs), a group of pattern recognition receptors (PRRs), are innate immune molecules that are structurally conserved through evolution in both invertebrate and vertebrate animals. In teleost fish, several PGRPs have been characterized recently. They have both amidase activity and bactericidal activity and are involved in indirectly killing bacteria and regulating multiple signaling pathways. However, the knowledge of functional similarity and divergence between PGRP paralogs for their role as an immune modulator in teleost fish is still limited. In this study, we identified a novel PGRP paralog, termed OmPGRP-L2 from the rainbow trout (Oncorhynchus mykiss). OmPGRP-L2 contains the conserved PGRP domain and the four Zn2+-binding amino acid residues required for amidase activity. Quantitative RT-PCR analysis indicated that OmPGRP-L2 is highly expressed in liver. Overexpression of OmPGRP-L2 in a rainbow trout hepatocyte cell line RTH-149 challenged with Edwardsiella tarda resulted in down-regulation of IL-1beta and TNF-alpha expression. When overexpressed in RTH-149 cells, OmPGRP-L2 inhibited NF-kappaB activity with or without bacterial stimulation. Collectively, these findings suggest that OmPGRP L2 has an immunomodulatory function, via NF-kappaB inhibition in liver. PMID- 29042011 TI - Differences in innate and adaptive immune response traits of Pahari (Indian non descript indigenous breed) and Jersey crossbred cattle. AB - Cattle are an integral part of the largely agrarian economy of India. Indigenous breeds of cattle comprise about 80% of total cattle population of the country and contribute significantly to the overall milk production. There are 40 recognized indigenous breeds of cattle and a number of uncharacterized non-descript cattle. Pahari cattle of Himachal Pradesh in Northern India are one such non-descript indigenous breed. Here we describe a comprehensive evaluation of haematobiochemical parameters and innate and adaptive immune response traits of Pahari cattle and a comparison with Jersey crossbred cattle. The study shows demonstrable differences in the two breeds with respect to some innate and adaptive immunological traits. This is a first attempt to characterize immune response traits of Pahari cattle and the results of the study provide an understanding of breed differences in immune status of cattle which could be useful for their breeding and conservations programs. PMID- 29042014 TI - Effects of cathelicidin-derived peptide from reptiles on lipopolysaccharide induced intestinal inflammation in weaned piglets. AB - Cathelicidins are the largest family of antimicrobial peptides. C-BF, which is short for Cathelicidin-Bungarus Fasciatus, was isolated from snake venom. C-BF was found to be the most potential substitutes for antibiotics. In this study, we analyzed the effects of cathelicidin-derived peptide C-BF, on lipopolysaccharide (LPS)-induced intestinal damage in weaned piglets, to evaluate the therapeutic effect of C-BF on infectious disease of piglets. Twenty-four piglets were randomly assigned into four groups: control, C-BF, LPS, and C-BF+LPS. The LPS and C-BF+LPS groups were intraperitoneally injected with LPS at fixed timepoints, while the control and C-BF groups were injected with equal volumes of saline. The C-BF and C-BF+LPS groups were then intraperitoneally injected with antimicrobial peptide C-BF, while the control and LPS groups were injected with equal volumes of saline. All piglets were observed for 15days and then sacrificed for analysis. The results showed that C-BF significantly improved the growth performance of weaned piglets compared with LPS-treated animals (P<0.05), and that C-BF could ameliorate the structural and developmental damage to the small intestine caused by LPS treatment. Further, the level of apoptosis in the LPS group was significantly higher than in the other three groups (P<0.05), as was the invasion of inflammatory cells into the intestinal mucosa of the jejunum (P<0.05), leading to increased secretion of pro-inflammatory cytokines. In conclusion, the study indicates that C-BF treatment may be a potential therapy for LPS/pathogen-induced intestinal injury in piglets. PMID- 29042013 TI - Inhibition of microsomal prostaglandin E-synthase-1 (mPGES-1) selectively suppresses PGE2 in an in vitro equine inflammation model. AB - Inhibition of prostaglandin E2 (PGE2) production effectively limits inflammation in horses, however nonspecific prostaglandin blockade via cyclooxygenase (COX) inhibition elicits deleterious gastrointestinal side effects in equine patients. Thus, more selective PGE2 targeting therapeutics are needed to treat inflammatory disease in horses. One potential target is microsomal prostaglandin E-synthase-1 (mPGES-1), which is the terminal enzyme downstream of COX-2 in the inducible PGE2 synthesis cascade. This enzyme has yet to be studied in equine leukocytes, which play a pivotal role in equine inflammatory disease. The objective of this study was to determine if mPGES-1 is a PGE2-selective anti-inflammatory target in equine leukocytes. To evaluate this objective, leukocyte-rich plasma (LRP) was isolated from equine whole blood collected via jugular venipuncture of six healthy adult horses of mixed breeds and genders. LRP was primed with granulocyte monocyte colony-stimulating factor (GM-CSF) and stimulated with lipopolysaccharide (LPS) in the presence or absence of an mPGES-1 inhibitor (MF63), a COX-2 inhibitor (NS-398), or a nonselective COX inhibitor (indomethacin). Following treatment, mPGES-1 and COX-2 mRNA and protein levels were measured via qPCR and western blot, respectively, and PGE2, thromboxane (TXA2) and prostacyclin (PGI2) levels were measured in cellular supernatants via ELISA. This study revealed that LPS significantly increased mPGES-1 mRNA, but not protein levels in equine LRP as measured by qPCR and western blot, respectively. In contrast, COX-2 mRNA and protein were coordinately induced by LPS. Importantly, treatment of LPS-stimulated leukocytes with indomethacin and NS-398 significantly reduced extracellular concentrations of multiple prostanoids (PGE2, TXA2 and PGI2), while the mPGES-1 inhibitor MF63 selectively inhibited PGE2 production only. mPGES-1 inhibition also preserved higher basal levels of PGE2 production when compared to either COX inhibitor, which might be beneficial in a clinical setting. In conclusion, this work identifies mPGES-1 as a key regulator of PGE2 production and a PGE2-selective target in equine leukocytes. This study demonstrates that mPGES-1 is a potentially safer and effective therapeutic target for treatment of equine inflammatory disease when compared to traditional non steroidal anti-inflammatory drugs. PMID- 29042015 TI - Identification of monoclonal antibodies cross-reactive with bottlenose dolphin orthologues of the major histocompatibility complex and leukocyte differentiation molecules. AB - The slow progress in understanding immunotoxic effects of environmental contaminants and their influence on disease susceptibility in whales is largely due to the limited information available on the immune systems and immune function of species included in the Cetancodontamorpha clade. Studies in species in the other major clades included in the Artiodactylamorpha, Ruminantiamorpha, Suinamorpha, and Camelidamorpha have revealed the immune systems are similar, but not identical. The present study was undertaken to expand the available monoclonal antibody reagents needed to gain insight into the composition, function, and evolution of the immune system in Cetancodontamorpha, using the dolphin (Tursiops truncatus) as a model cetacean species. Screening of a set of mAbs that recognize highly conserved epitopes expressed on the major histocompatibility complex (MHC) and leukocyte differentiation molecules (LDMs) in cattle by flow cytometry revealed some of the mAbs recognize epitopes conserved on dolphin orthologues of MHC class I, MHC class II, CD11a, CD14, CD16, CD18, CD163 and CD172a. Comparison of the amino acid sequences of dolphin and bovine orthologues revealed limited changes in sequence have occurred during speciation, suggesting an approach for developing cross-reactive mAbs for use in cetacean research. PMID- 29042016 TI - Bacteria causing pyometra in bitch and queen induce neutrophil extracellular traps. AB - Neutrophils are capable of releasing their DNA in response to infectious agents to form neutrophil extracellular traps (NETs) to destroy pathogens. Even though pyometra in queens and bitches is a common disease, its pathogenesis is not fully understood. The aim of this study was to assess the presence of NETs in the endometrium of queens and bitches suffering from pyometra. Pyometra and normal uteri were obtained after ovariohysterectomy from adult queens and bitches in diestrus. Uterine contents were evaluated for bacterial isolation and identification and for NETs presence. Escherichia coli were isolated in 5/5 queens and 4/5 bitches, and Streptococcus spp in one bitch. Sterile glass coverslips were placed on the endometrium surface to obtain material for NETs that were evaluated by immunocytochemistry (histone, neutrophil elastase or myeloperoxidase), fluorescence microscopy or scanning electron microscopy. NETs in endometrium content were positively stained by DNA histone DAPI, myeloperoxidase and by neutrophil elastase. NETs were spread in all observed queen and bitch endometria of pyometra cases. Ultrastructure images of NETs depicted clusters of globular material with fine filaments deposited on or around thick filaments and trapped bacteria. To the best of our knowledge these are the first findings confirming NETs endometrial presence in queen and bitch pyometra. Nevertheless, the precise role of NETs in pyometra in the bitch and queen, either to contribute to the defeat of infection or to its persistence remains to be unraveled. PMID- 29042017 TI - Defending the selective confirmation strategy. AB - Most scientific realists today in one way or another confine the object of their commitment to certain components of a successful theory and thereby seek to make realism compatible with the history of theory change. Kyle Stanford calls this move by realists the strategy of selective confirmation and raises a challenge against its contemporary, reliable applicability. In this paper, I critically examine Stanford's inductive argument that is based on past scientists' failures to identify the confirmed components of their contemporary theories. I argue that our ability to make such identification should be evaluated based on the performance of the scientific community as a whole rather than that of individual scientists and that Stanford's challenge fails to raise a serious concern because it focuses solely on individual scientists' judgments, which are either made before the scientific community has reached a consensus or about the value of the posit as a locus for further research rather than its confirmed status. PMID- 29042018 TI - Was Feyerabend an anarchist? The structure(s) of 'anything goes'. AB - The near consensus in the secondary literature on Feyerabend is that his epistemological anarchism, characterized by the slogan 'anything goes', was not a positive proposal but the conclusion of a reductio argument against his opponents (Lloyd 1997; Staley 1999; Munevar 2000; Farrell 2003; Tsou 2003; Oberheim 2006; Roe 2009). This makes anarchism a mere criticism rather than a substantive position in its own right. In this paper, I argue that Feyerabend held anarchism as a positive thesis. Specifically, I present two possible interpretations of anarchism: one where anarchism is entailed by Feyerabend's radical view of pluralism and another where scientists must be 'methodological opportunists', which Feyerabend held simultaneously from at least 1970. I then consider how these positions fare against the more influential criticisms of anarchism (Nagel 1977; Worrall 1978; Godfrey-Smith 2003). I conclude by suggesting two avenues to constraining a literal interpretation of 'anything goes' on Feyerabendian grounds. PMID- 29042019 TI - Duhemian good sense and agent reliabilism. PMID- 29042020 TI - Kuhnian theory-choice and virtue convergence: Facing the base rate fallacy. AB - Perhaps the strongest argument for scientific realism, the no-miracles-argument, has been said to commit the so-called base rate fallacy. The apparent elusiveness of the base rate of true theories has even been said to undermine the rationality of the entire realism debate. On the basis of the Kuhnian picture of theory choice, I confront this challenge by arguing that a theory is likely to be true if it possesses multiple theoretical virtues and is embraced by numerous scientists-even when the base rate converges to zero. PMID- 29042021 TI - Fresnel's laws, ceteris paribus. AB - This article is about structural realism, historical continuity, laws of nature, and ceteris paribus clauses. Fresnel's Laws of optics support Structural Realism because they are a scientific structure that has survived theory change. However, the history of Fresnel's Laws which has been depicted in debates over realism since the 1980s is badly distorted. Specifically, claims that J. C. Maxwell or his followers believed in an ontologically-subsistent electromagnetic field, and gave up the aether, before Einstein's annus mirabilis in 1905 are indefensible. Related claims that Maxwell himself did not believe in a luminiferous aether are also indefensible. This paper corrects the record. In order to trace Fresnel's Laws across significant ontological changes, they must be followed past Einstein into modern physics and nonlinear optics. I develop the philosophical implications of a more accurate history, and analyze Fresnel's Laws' historical trajectory in terms of dynamic ceteris paribus clauses. Structuralists have not embraced ceteris paribus laws, but they continue to point to Fresnel's Laws to resist anti-realist arguments from theory change. Fresnel's Laws fit the standard definition of a ceteris paribus law as a law applicable only in particular circumstances. Realists who appeal to the historical continuity of Fresnel's Laws to combat anti-realists must incorporate ceteris paribus laws into their metaphysics. PMID- 29042022 TI - State of the field: Paper tools. AB - Paper occupies a special place in histories of knowledge. It is the substrate of communication, the stuff of archives, the bearer of marks that make worlds. For the early-modern period in particular we now have a wealth of studies of 'paper tools', of the ways in which archives were assembled and put to use, of the making of lists and transcribing of observations, and so on. In other fields, too, attention has turned to the materiality of information. How far is it possible to draw a stable methodology out of the insights of literary and book historians, bibliographers, anthropologists, and those working in media studies? Do these diverse fields in fact refer to the same thing when they talk of paper, its qualities, affordances and limitations? In attempting to answer these questions, the present essay begins in the rich territory of early-modern natural philosophy - but from there opens out to take in recent works in a range of disciplines. Attending to the specific qualities of paper is only possible, I argue, if it is understood that paper can be both transparent and opaque depending on the social world it inhabits and helps to constitute. Paper flickers into and out of view, and it is precisely this quality that constitutes its sociomateriality. PMID- 29042023 TI - Selective embolization of the superior rectal artery: An alternative to hemorrhoid surgery? PMID- 29042024 TI - The role of the LTB4-BLT1 axis in chemotactic gradient sensing and directed leukocyte migration. AB - Directed leukocyte migration is a hallmark of inflammatory immune responses. Leukotrienes are derived from arachidonic acid and represent a class of potent lipid mediators of leukocyte migration. In this review, we summarize the essential steps leading to the production of LTB4 in leukocytes. We discuss the recent findings on the exosomal packaging and transport of LTB4 in the context of chemotactic gradients formation and regulation of leukocyte recruitment. We also discuss the dynamic roles of the LTB4 receptors, BLT1 and BLT2, in mediating chemotactic signaling in leukocytes and contrast them to other structurally related leukotrienes that bind to distinct GPCRs. Finally, we highlight the specific roles of the LTB4-BLT1 axis in mediating signal-relay between chemotaxing neutrophils and its potential contribution to a wide variety of inflammatory conditions including tumor progression and metastasis, where LTB4 is emerging as a key signaling component. PMID- 29042025 TI - Biosynthesis of leukotriene B4. AB - Leukotriene B4 (LTB4) is a lipid mediator derived from arachidonic acid (AA) by the sequential action of 5-lipoxygenase (5-LOX), 5-lipoxygenase-activating protein (FLAP) and LTA4 hydrolase (LTA4H). It was initially recognized for its involvement in the recruitment of neutrophils and is one of the most potent chemotactic agents known to date. A large body of data has indicated that LTB4 plays a significant role in many chronic inflammatory diseases, such as arthritis, chronic obstructive pulmonary disease (COPD), cardiovascular disease, cancer and more recently, metabolic disorder. In this review, we focus on the biosynthesis of LTB4 and its biological effects. In particular, we will describe a basic biochemical understanding integrated with recent developments in the field of structural biology of the three key enzymes (5-LOX, FLAP and LTA4H) in LTB4 biosynthesis, and also summarize the most outstanding work on in vivo biological and pathogenic roles of these enzymes and the development of enzyme inhibitors. PMID- 29042026 TI - Identification, signaling, and functions of LTB4 receptors. AB - Leukotriene B4 (LTB4), a lipid mediator produced from arachidonic acid, is a chemoattractant for inflammatory leukocytes. We identified two receptors for LTB4, the high-affinity receptor BLT1 and the low-affinity receptor BLT2. BLT1 is expressed in various subsets of leukocytes, and analyses of BLT1-deficient mice revealed that the LTB4/BLT1 axis enhances leukocyte recruitment to infected sites, and is involved in the elimination of pathogens. Hyperactivation of the LTB4/BLT1 axis induces acute and chronic inflammation, resulting in various inflammatory diseases. BLT2 was originally identified as a low-affinity receptor for LTB4, and we later identified 12(S)-hydroxy-5Z,8E,10E-heptadecatrienoic acid (12-HHT) as a high-affinity ligand for BLT2. BLT2 is highly expressed in epithelial cells in various tissues including intestine and skin. Large quantities of 12-HHT are produced by activated platelets during skin injury, and activation of BLT2 on epidermal keratinocytes accelerates skin wound healing by enhancing cell migration. BLT2 signaling also enhances cell-cell junctions, protectes against transepidermal water loss, and preventes entry of environmental substances into the body. PMID- 29042027 TI - Too much of a good thing: How modulating LTB4 actions restore host defense in homeostasis or disease. AB - The ability to regulate inflammatory pathways and host defense mechanisms is critical for maintaining homeostasis and responding to infections and tissue injury. While unbalanced inflammation is detrimental to the host; inadequate inflammation might not provide effective signals required to eliminate pathogens. On the other hand, aberrant inflammation could result in organ damage and impair host defense. The lipid mediator leukotriene B4 (LTB4) is a potent neutrophil chemoattractant and recently, its role as a dominant molecule that amplifies many arms of phagocyte antimicrobial effector function has been unveiled. However, excessive LTB4 production contributes to disease severity in chronic inflammatory diseases such as diabetes and arthritis, which could potentially be involved in poor host defense in these groups of patients. In this review we discuss the cellular and molecular programs elicited during LTB4 production and actions on innate immunity host defense mechanisms as well as potential therapeutic strategies to improve host defense. PMID- 29042029 TI - LTB4 and BLT1 in inflammatory arthritis. AB - Inflammatory arthritis, including rheumatoid arthritis (RA), is characterized by infiltration of inflammatory cells into the joints. Biological agents targeting TNF-alpha and IL-6 dramatically improve RA. However, some RA patients do not respond to current treatments and these broadly active upstream biological agents increase the risk of severe infection. Therefore, there remains a need for other effective and safe treatments for RA. Many studies have implicated that blockade of leukotriene B4 (LTB4) and its high affinity receptor BLT1 dramatically suppress arthritis in animal models. In addition, levels of LTB4 in serum, synovial fluid and synovial tissue are increased in RA patients compared to healthy donors or osteoarthritis patients. These data suggest that LTB4 and BLT1 likely contribute to the pathogenesis of human RA. However, several clinical trials inhibiting BLT1 in RA were not successful. Our recent data revealed that LTB4 is a key mediator in a complement, lipid, cytokine and chemokine cascade that first initiates and then sustains neutrophilic inflammation in inflammatory arthritis. These new mechanistic studies suggest novel ways to target the LTB4 BLT1 pathway for the treatment of RA and other inflammatory diseases. PMID- 29042028 TI - Importance of the leukotriene B4-BLT1 and LTB4-BLT2 pathways in asthma. AB - For several decades, the leukotriene pathways have been implicated as playing a central role in the pathophysiology of asthma. The presence and elevation of numerous metabolites in the blood, sputum, and bronchoalveolar lavage fluid from asthmatics or experimental animals adds support to this notion. However, targeting of the leukotriene pathways has had, in general, limited success. The single exception in asthma therapy has been targeting of the cysteinyl leukotriene receptor 1, which clinically has proven effective but only in certain clinical situations. Interference with 5-lipoxygenase has had limited success, in part due to adverse drug effects. The importance of the LTB4-BLT1 pathway in asthma pathogenesis has extensive experimental support and findings, albeit limited, from clinical samples. The LTB4-BLT1 pathway was shown to be important as a neutrophil chemoattractant. Despite observations made more than two decades ago, the LTB4-BLT1 pathway has only recently been shown to exhibit important activities on subsets of T lymphocytes, both as a chemoattractant and on lymphocyte activation, as well as on dendritic cells, the major antigen presenting cell in the lung. The role of BLT2 in asthma remains unclear. Targeting of components of the LTB4-BLT1 pathway offers innovative therapeutic opportunities especially in patients with asthma that remain uncontrolled despite intensive corticosteroid treatment. PMID- 29042030 TI - Recent advances in clinical development of leukotriene B4 pathway drugs. AB - The LTB4 pathway is an attractive target for therapeutic drug development. Two broad classes of drugs have been pursued: antagonists of the primary LTB4 receptors (BLT1 and BLT2) and inhibitors of LTA4 Hydrolase (LTA4H), the rate limiting enzyme in the production of LTB4. An initial wave of effort culminated in the 1990s. Over the past 15 years, a second wave of more selective drug candidates, including at least 5 BLT antagonists and 6 LTA4H inhibitors, have reached Phase 2 clinical trials. Despite the extensive efforts to discover and develop LTB4 pathway targeting drugs, only one has reached the market to date. Recently discovered complexities in the pathway and challenges in matching pathway intervention with therapeutic effect could explain the limited clinical success of LTB4 pathway drugs, even though there is a large body of scientific evidence linking LTB4 to human diseases and demonstrating efficacy of these compounds in a wide array of preclinical models. Herein, we describe the clinical programs for the most prominent recent examples from each broad class and discuss the clinical outcomes and their implications for future development of LTB4 pathway drugs. PMID- 29042031 TI - Relation of the Mitral Annular Plane Systolic Excursion to Risk for Intervention in Initially Asymptomatic Patients With Aortic Stenosis and Preserved Systolic Function. AB - Aortic valve intervention (AVI) in patients with a severe aortic stenosis (AS) and a preserved left ventricular ejection fraction (LVEF) is controversial. Mitral annular plane systolic excursion (MAPSE) is an easily acquired metric of left ventricular longitudinal shortening. We sought to investigate if an asymptomatic decrease in MAPSE preceded the need for AVI in asymptomatic patients with AS and a preserved LVEF. In this retrospective cohort study, we identified 205 consecutive patients (56% male, 73 +/- 11 years) with at least a moderate AS and a normal LVEF who underwent a serial outpatient transthoracic echocardiography (TTE) from 2006 to 2013. Apical TTE images were reviewed and (the average of septal, lateral, anterior, and inferior) MAPSE was measured. We examined the association of change in MAPSE with aortic valve area and LVEF over time and used time-varying Cox models to examine the risk of AVI. MAPSE correlated with aortic valve area (Spearman r = 0.18, p = 0.02) and decreased with subsequent TTE, whereas LVEF was "maintained." For each 1-mm reduction in MAPSE, the age- and gender-adjusted hazard ratio (HR) for AVI was 1.15 (95% confidence interval [CI] 1.01 to 1.31, p = 0.04). A MAPSE decrease of >2 mm/TTE was significantly associated with an increased risk of AVI, with an adjusted HR of 1.95 (95% CI 1.04 to 3.66, p = 0.04), whereas a MAPSE decrease of >1.5 mm/year trended toward an association with an increased risk of AVI (HR 1.61, 95% CI 0.95 to 2.74, p = 0.08). In conclusion, in asymptomatic patients with at least a moderate AS and a preserved LVEF, an asymptomatic decrease in MAPSE was associated with the clinical need for AVI despite ongoing preservation of LVEF. PMID- 29042032 TI - Clinical outcomes and predictors of patient satisfaction in displaced midshaft clavicle fractures in adults: Results from a retrospective multicentre study. AB - BACKGROUND: The optimal treatment of displaced midshaft clavicle fractures (Robinson Type 2B1 & 2B2) in adults remains controversial. Little is known about patient satisfaction with treatment for this type of injury. The purpose of this study was to compare clinical outcomes and explore predictors of patient satisfaction after nonoperative and direct-operative treatment of displaced midshaft clavicle fractures in adults. METHODS: A retrospective multicentre study was conducted. Clinical data were retrieved from electronic patient charts. A questionnaire informing on current subjective function (QuickDASH), pain levels (VAS), health-related quality of life (Eq-5D-5L), impact on employment and satisfaction with treatment results was sent to all patients. Univariate and multivariate linear regression was performed to identify predictors of satisfaction. RESULTS: A total of 278 patients were identified (nonoperative n=150, direct-operative n=128). 67% of eligible patients returned the questionnaire. Median questionnaire follow-up was 2.1 years. No differences were found between groups for QuickDASH, Eq-5D-5L or pain VAS scores. Impaired union was observed in 13.2% of nonoperative cases vs. 2.3% in the direct-operative group. Patients in the nonoperative group could resume work after a median of 30.0days, compared to 13.5days in the direct-operative group. Patient satisfaction was higher in the direct-operative group, 8/10 vs. 7/10 for overall treatment results respectively. Patients' rating for the level of shared decision making was the main predictor of overall satisfaction. CONCLUSION: Direct operative management led to higher patient satisfaction, despite similar long term patient reported outcomes with nonoperative treatment. Patients' rating for the level of shared decision-making was the main predictor of overall satisfaction. This study highlights the need to enhance communication to facilitate shared decision-making. PMID- 29042033 TI - Serious game training improves performance in combat life-saving interventions. AB - AIM: In modern warfare, almost 25% of combat-related deaths are considered preventable if life-saving interventions are performed. Therefore, Tactical Combat Casualty Care (TCCC) training for soldiers is a major challenge. In 2014, the French Military Medical Service supported the development of 3D-SC1(r), a serious game designed for the French TCCC program, entitled Sauvetage au Combat de niveau 1 (SC1). Our study aimed to evaluate the impact on performance of additional training with 3D-SC1(r). MATERIAL AND METHODS: The study assessed the performance of soldiers randomly assigned to one of two groups, before (measure 1) and after (measure 2) receiving additional training. This training involved either 3D-SC1(r) (Intervention group), or a DVD (Control group). The principal measure was the individual performance (on a 16-point scale), assessed by two investigators during a hands-on simulation. First, the mean performance score was compared between the two measures for Intervention and Control groups using a two tailed paired t-test. Second, a multivariable linear regression was used to determine the difference in the impacts of 3D-SC1(r) and DVD training, and the order of presentation of the two scenarios, on the mean change from baseline in performance scores. RESULTS AND DISCUSSION: A total of 96 subjects were evaluated: seven could not be followed-up, while 50 were randomly allocated to the Intervention group, and 39 to the Control group. Between measure 1 and measure 2, the mean (SD) performance score increased from 9.9 (3.13) to 14.1 (1.23), and from 9.4 (2.97) to 12.5 (1.83), for the Intervention group and Control group, respectively (p<0.0001). The adjusted mean difference in performance scores between 3D-SC1(r) and DVD training was 1.1 (95% confidence interval -0.3, 2.5) (p=0.14). Overall, the study found that supplementing SC1 training with either 3D-SC1(r) or DVD improved performance, assessed by a hands on simulation. However, our analysis did not find a statistically significant difference between the effects of these two training tools. 3D-SC1(r) could be an efficient and pedagogical tool to train soldiers in life-saving interventions. In the current context of terrorist threat, a specifically-adapted version of 3D SC1(r)may be a cost-effective and engaging way to train a large civilian public. PMID- 29042034 TI - Evaluation of mandibular fracture healing in rats under zoledronate therapy: A histologic study. AB - INTRODUCTION: To evaluate fracture healing in mandible of rats under zoledronate therapy. METHODS: A total of 135 Wistar rats were randomly allocated into 3 groups. Group L received two intravenous infusion of 0.06 mg/kg zoledronate 6 weeks apart. Group H received the same dose of zoledronate as group L once a week for 6 weeks and group C were treated with normal saline. Seven days after the last infusion, rats underwent unilateral mandibular osteotomy to replicate a fracture. Fifteen rats from each group were sacrificed 2, 4, and 6 weeks after surgery. Fracture calluses were examined and scored using a histological grading system (1 to 10). RESULTS: After 2 weeks, substantial woven bone and some lamellar bone were seen in control and L groups. In group H, healing was delayed and consisted of fibrous and cartilaginous tissue and some woven bone. After 4 weeks, most of woven bone in control group was replaced with lamellar bone but in group L, comparatively less bone remodeling occurred. In group H, healing process was nearly the same as that at 2 weeks. After 6 weeks, complete bone remodeling was seen in control group. In group L, bone remodeling was under way and in group H, histological findings were nearly the same as those at 2 and 4 weeks. Except for L and control groups at 2 weeks, healing score was significantly different between all corresponding groups. CONCLUSION: Zoledronate therapy delayed healing process of mandibular fracture in rats in a dose-dependent manner. PMID- 29042035 TI - A systematic review of molecular responses to cancer therapy in normal human mucosa. AB - OBJECTIVE: Cancer therapy-induced inflammation of oral and gastrointestinal mucosae affects patients nonuniformly. Preventive strategies are limited; no biomarker exists for pretreatment identification of patients likely to be severely affected. Animal models are preferred for studying molecular responses in mucosae during chemotherapy, but translation into clinical practice is difficult. We performed a systematic review to retrieve articles that described molecular changes in human mucosae during cancer therapy. STUDY DESIGN: We searched MEDLINE and Ovid Embase searches for studies reported in the English language literature from January 1990 to November 2016 and studies referenced in selected articles, which analyzed mucosae from patients at risk of developing mucositis during cancer therapy. Two authors extracted data according to predefined data fields, including study quality indicators. RESULTS: We identified 17 human studies on chemotherapy (n = 9) and radiotherapy (n = 8), but no studies on targeted therapy. Studies were heterogeneous with regard to patient cohorts, analysis methods, cancer treatments, biopsy timings, and correlations to clinical mucositis. Consequently, a meta-analysis was not feasible. CONCLUSIONS: Few human studies described the molecular responses of the normal mucosa to cancer therapy. Studies were heterogeneous and had sparse correlations to clinical mucositis. We proposed a model for acquiring data on treatment- and disease-specific phenotypes and transcriptomes for predictive or preventive initiatives. PMID- 29042036 TI - New logos. PMID- 29042037 TI - No rat poison for me. PMID- 29042038 TI - Rapid-deployment aortic valve systems: The surgeons' alternative to transcatheter aortic valve implantation? PMID- 29042039 TI - Rapid deployment aortic valve systems: The surgeons' alternative to Transcatheter Aortic Valve Implantation? PMID- 29042041 TI - Discussion. PMID- 29042042 TI - A stitch too far: The circumflex artery in jeopardy during mitral valve repair. PMID- 29042043 TI - The case for surgical myectomy in hypertrophic cardiomyopathy: Is strategic planning the key to success? PMID- 29042040 TI - Optimal blood pressure during cardiopulmonary bypass defined by cerebral autoregulation monitoring. AB - OBJECTIVES: We sought to define the lower and upper limits of cerebral blood flow autoregulation and the optimal blood pressure during cardiopulmonary bypass. We further sought to identify variables predictive of these autoregulation end points. METHODS: Cerebral autoregulation was monitored continuously with transcranial Doppler in 614 patients during cardiopulmonary bypass enrolled in 3 investigations. A moving Pearson's correlation coefficient was calculated between cerebral blood flow velocity and mean arterial pressure to generate the variable mean velocity index. Optimal mean arterial pressure was defined as the mean arterial pressure with the lowest mean velocity index indicating the best autoregulation. The lower and upper limits of cerebral blood flow autoregulation were defined as the mean arterial pressure at which mean velocity index was increasingly pressure passive (ie, mean velocity index >=0.4) with declining or increasing blood pressure, respectively. RESULTS: The mean (+/- standard deviation) lower and upper limits of cerebral blood flow autoregulation, and optimal mean arterial pressure were 65 +/- 12 mm Hg, 84 +/- 11 mm Hg, and 78 +/- 11 mm Hg, respectively, after adjusting for study enrollment. In 17% of patients, though, the lower limit of cerebral autoregulation was above this optimal mean arterial pressure, whereas in 29% of patients the upper limit of autoregulation was below the population optimal mean arterial pressure. Variables associated with optimal mean arterial pressure based on multivariate regression analysis were nonwhite race (increased 2.7 mm Hg; P = .034), diuretics use (decreased 1.9 mm Hg; P = .049), prior carotid endarterectomy (decreased 5.5 mm Hg; P = .019), and duration of cardiopulmonary bypass (decreased 1.28 per 60 minutes of cardiopulmonary bypass). The product of the duration and magnitude that mean arterial pressure during cardiopulmonary bypass was below the lower limit of cerebral autoregulation was associated with the risk for stroke (P = .02). CONCLUSIONS: Real-time monitoring of autoregulation may improve individualizing mean arterial pressure during cardiopulmonary bypass and improving patient outcomes. PMID- 29042044 TI - In these "good times," it can still be "diff'rent strokes" for different folks. PMID- 29042045 TI - It's not about "can we" but "should we". PMID- 29042046 TI - Ancillary revelations of the Single-Ventricle Reconstruction Trial: The less excitement, the better. PMID- 29042047 TI - An aspirin a day may not be enough. PMID- 29042048 TI - The right ventricle in the systemic circulation: Why do some fail? PMID- 29042050 TI - Scoring system to predict nodal metastases in patients with early-stage esophageal cancer: An outstanding tool to complement multidisciplinary, team based care. PMID- 29042049 TI - T category of non-small cell lung cancer invading the fissure to the adjacent lobe. AB - BACKGROUND: Dispute arises in the tumor category of non-small cell lung cancer invading the fissure to the adjacent lobe. The purpose of this study is to determine the long-term prognosis of non-small cell lung cancer with such an invasion and to propose an appropriate T category. METHODS: In total, 53 cases of non-small cell lung cancer invading the fissure to the adjacent lobe (fissure group) were identified in patients who underwent pulmonary resection from 1997 to 2014. Propensity score matching was applied to balance known confounders for prognosis between each paired group, resulting in 3 matched sets (fissure vs T2a, fissure vs T2b, and fissure vs T3). The overall survival of the fissure group was compared with the survival of patients with T2a, T2b, and T3 diseases, as classified in the eighth edition of TNM classification. RESULTS: The 5-year survivals of the T2a, T2b, T3, and fissure groups were 64.2% (95% confidence interval, 53.2-72.6), 54.6% (95% confidence interval, 44.7-65.8), 35.8% (95% confidence interval, 22.8-44.2), and 38.6% (95% confidence interval, 25.0-52.2), respectively. Specifically, the difference between the fissure group and T2a is statistically significant at P = .01; between the fissure group and T2b at P = .02; and between the fissure group and T3 at P = .93. Multivariate analyses indicate that the fissure group had a similar risk of dying as the T3 disease group (hazard ratio, 1.10; 95% confidence interval, 0.69-1.37) and was at a significantly higher risk compared with the T2a group (hazard ratio, 2.34; 95% confidence interval, 1.50-3.39) and T2b group (hazard ratio, 1.71; 95% confidence interval, 1.19-2.76). CONCLUSIONS: On the basis of our single-institution study, we propose that non-small cell lung cancer invading the fissure to the adjacent lobe should be further investigated and the impact on patients' prognoses validated as a T3 disease. PMID- 29042052 TI - Discussion. PMID- 29042051 TI - Extracorporeal membrane oxygenation as a bridge to lung transplantation: A single center experience in the present era. AB - OBJECTIVE: Extracorporeal membrane oxygenation has been used as a bridge to lung transplantation in patients with rapid pulmonary function deterioration. The reported success of this modality and perioperative and functional outcomes are varied. METHODS: We retrospectively reviewed all patients who underwent lung transplantation at our institution over 1 year (January 1, 2015, to December 31, 2015). Patients were divided into 2 groups depending on whether they required extracorporeal membrane oxygenation support as a bridge to transplant; preoperative characteristics, lung transplantation outcomes, and survival were compared between groups. RESULTS: Of the 93 patients, 12 (13%) received bridge to transplant, and 81 (87%) did not. Patients receiving bridge to transplant were younger, had higher lung allocation scores, had lower functional status, and were more often on mechanical ventilation at listing. Most patients who received bridge to transplant (n = 10, 83.3%) had pulmonary fibrosis. Mean pretransplant extracorporeal membrane oxygenation support was 103.6 hours in duration (range, 16-395 hours). All patients who received bridge to transplant were decannulated immediately after lung transplantation but were more likely to return to the operating room for secondary chest closure or rethoracotomy. Grade 3 primary graft dysfunction within 72 hours was similar between groups. Lung transplantation success and hospital discharge were 100% in the bridge to transplant group; however, these patients experienced longer hospital stays and higher rates of discharge to acute rehabilitation. The 1-year survival was 100% in the bridge to transplant group and 91% in the non-bridge to transplant group (log-rank, P = .24). The 1-year functional status was excellent in both groups. CONCLUSIONS: Extracorporeal membrane oxygenation can be used to safely bridge high-acuity patients with end-stage lung disease to lung transplantation with good 30-day, 90-day, and 1-year survival and excellent 1-year functional status. Long-term outcomes are being studied. PMID- 29042053 TI - Hitting the target with lung perfusion. PMID- 29042054 TI - PREFACE: Special Issue on Advances in Industrial Bioprocesses and Products - Genetic and Metabolic Engineering Interventions. PMID- 29042056 TI - A computational model of the hepatic circulation applied to analyze the sensitivity of hepatic venous pressure gradient (HVPG) in liver cirrhosis. AB - Measurement of hepatic venous pressure gradient (HVPG) is currently widely adopted to provide an estimate of portal pressure gradient (PPG) in the diagnosis and treatment of portal hypertension associated with liver cirrhosis. Despite the well-documented clinical utility of HVPG, it remains poorly understood how the relationship between HVPG and PPG is affected by factors involved in the pathogenesis and progression of cirrhosis. In the study, a computational model of the hepatic circulation calibrated to in vivo data was developed to simulate the procedure of HVPG measurement and quantitatively investigate the error of HVPG relative to PPG under various pathophysiological conditions. Obtained results confirmed the clinical consensus that HVPG is applicable to the assessment of portal hypertension caused by increased vascular resistance located primarily at the sinusoidal and postsinusoidal sites rather than at the presinusoidal site. On the other hand, our study demonstrated that the accuracy of HVPG measurement was influenced by many factors related to hepatic hemodynamics even in the case of sinusoidal portal hypertension. For instance, varying presinusoidal portal vascular resistance significantly altered the difference between HVPG and PPG, while an enhancement in portosystemic collateral flow tended to improve the accuracy of HVPG measurement. Moreover, it was found that presinusoidal and postsinusoidal vascular resistances interfered with each other with respect to their influence on HVPG measurement. These findings suggest that one should take into account patient-specific pathological conditions in order to achieve a better understanding and utilization of HVPG in the clinical practice. PMID- 29042055 TI - Mechanism underlying the suppressor activity of retinoic acid on IL4-induced IgE synthesis and its physiological implication. AB - The present study extends an earlier report that retinoic acid (RA) down regulates IgE Ab synthesis in vitro. Here, we show the suppressive activity of RA on IgE production in vivo and its underlying mechanisms. We found that RA down regulated IgE class switching recombination (CSR) mainly through RA receptor alpha (RARalpha). Additionally, RA inhibited histone acetylation of germ-line epsilon (GL epsilon) promoter, leading to suppression of IgE CSR. Consistently, serum IgE levels were substantially elevated in vitamin A-deficient (VAD) mice and this was more dramatic in VAD-lecithin:retinol acyltransferase deficient (LRAT-/-) mice. Further, serum mouse mast cell protease-1 (mMCP-1) level was elevated while frequency of intestinal regulatory T cells (Tregs) were diminished in VAD LRAT-/- mice, reflecting that deprivation of RA leads to allergic immune response. Taken together, our results reveal that RA has an IgE-repressive activity in vivo, which may ameliorate IgE-mediated allergic disease. PMID- 29042057 TI - Urethral lumen occlusion by artificial sphincteric device: Evaluation of degraded tissues effects. AB - Urinary incontinence can be surgically treated by means of artificial sphincters, based on a cuff that provides a pressure around the urethra to occlude the lumen. Considering the frequent access of elderly patients to this surgical practice, tissue degradation phenomena must be investigated, since they could affect treatment reliability and durability. The potential degradation can be interpreted considering a variation within soft tissue constitutive formulation, by means of a correlation between mechanical properties and tissues ageing. The overall compressibility varies, as characteristics aspect of soft tissue mechanical response with age, as well as the stiffness. The investigation is performed by means of a three dimensional numerical model of the urethral duct. The effects of the interaction phenomenon with a cuff is interpreted considering the changes, within the constitutive models, of the basic parameters that define the potential degradation process. The deformation related to compressibility is recalled, ranging between ten and fifty percent in dependence on the degradation level considered. This parameter, reported mostly as representative of the aging effect, shows a large variation that confirms the relevance of the investigation performed toward a sensitivity of the mechanical response of the urethral duct referred to the lumen occlusion. PMID- 29042058 TI - Exercise induced complete atrioventricular block: Utility of exercise stress test. AB - Exercise induced complete atrioventricular block (EIAVB) is a relatively uncommon condition. This phenomenon is clinically important because it can mimic symptoms of other cardiovascular conditions and may be associated with exercise intolerance and subsequent syncope. A 76year old man with long-standing hypertension and diabetes mellitus presented with recurrent episodes of lightheadedness and syncope with physical activity. ECG showed sinus rhythm with first degree atrioventricular block. Echocardiography did not show any valvular disease causing his symptoms. Coronoary angiographic evaluation revealed non obstructive coronary artery disease. Because of the exertional nature of his symptoms, a symptom-limited treadmill exercise test was performed which revealed EIAVB. A permanent dual chamber pacemaker was implanted and his symptoms resolved completely. PMID- 29042059 TI - Histamine, paroxysmal AV block and low adenosine syncope a case report. PMID- 29042060 TI - Australian general practitioners initiate statin therapy primarily on the basis of lipid levels; New Zealand general practitioners use absolute risk. AB - OBJECTIVES: To compare the determinants of initial statin prescribing between New Zealand and Australia. New Zealand has a system-wide absolute risk-based approach to primary care cardiovascular disease (CVD) management, while Australia has multiple guidelines. METHOD: Classification and Regression Tree (CART) analysis of two observational studies of primary care CVD management from New Zealand (PREDICT-CVD) and Australia (AusHeart). Over 80% of eligible New Zealanders have been screened for CVD risk. PREDICT-CVD is used by approximately one-third of New Zealand GPs to perform web-based CVD risk assessment in routine practice, with the sample consisting of 126,519 individuals risk assessed between 1 January 2007 and 30 June 2014. AusHeart is a cluster-stratified survey of primary care CVD management that enrolled 534 GPs from across Australia, who in turn recruited 1381 patients between 1 April and 30 June 2008. Eligibility was restricted to 55 74year old patients without prior CVD. RESULTS: The CART analyses demonstrated that New Zealand GPs prescribe statins primarily on the basis of absolute risk, while their Australian counterparts are influenced by a variety of individual risk factors, including total cholesterol, LDL cholesterol and diabetes. CONCLUSIONS: Countries seeking to improve their management of CVD should consider adopting a 'whole of system' absolute risk-based approach with clear guidelines that are consistent with drug reimbursement rules; and include computerized decision-support tools that aid decision-making and allow monitoring of outcomes and continual improvement of practice. PMID- 29042061 TI - Analysis of selected aspects of inflammasome function in the monocytes from neonates born extremely and very prematurely. AB - BACKGROUND: Inflammasomes regulate activation of caspase-1, which cleaves and activates interleukin (IL)-1beta and IL-18, the cytokines that trigger pro inflammatory and antimicrobial responses. There is very little known about inflammasome function in the subsets of monocytes (MO) isolated from preterm neonates born extremely and very prematurely. METHODS: A group of 76 very low birth weight patients without early-onset sepsis was divided into extremely preterm (<28 gestational week) or very preterm (28-32 gestational week) neonates. The first blood sample was collected on the 5th day of life (5th DOL) to analyse MO subsets as well as the intracellular IL-1beta expression and supernatant concentration of IL-1beta and IL-18. Secondary blood samples were collected within 24h of late-onset sepsis (LOS) development and analysed as above. RESULTS: On the 5th DOL, the extremely preterm neonates were characterized by a significantly higher absolute count of MO, in particular in the classical and intermediate subsets, as compared to the very preterm group. The counts of the intermediate and non-classical MO subsets increased during LOS in all neonates. We did not observe significant differences in the intracellular IL-1beta expression between the analysed groups. Furthermore, the levels of the analysed cytokines in the MO supernatants were comparable between the extremely and very preterm neonates on the 5th DOL. Finally, a higher level of IL-18 was observed in the supernatant of the extremely preterm group during LOS. CONCLUSIONS: During LOS, extremely preterm neonates excrete a higher level of IL-18 cytokines compared to very preterm neonates. Further studies are required to determine whether this observation is a result of a higher count of the circulating MO or is a true reflection of increased inflammasome function in this particular group of newborns. PMID- 29042062 TI - Getting evidence into action to tackle institutional child abuse. AB - The Australian Royal Commission into Institutional Responses to Child Sexual Abuse is an example of a government response to survivors' demands to address the harm they suffered. It is also a major response by a national government to improve child safety in the future. Facing up to child abuse is difficult and in other countries similar inquiries have suffered delays and derailing. This commentary uses an evidence-to-action lens to explore why clear evidence of child sexual abuse may be ignored and side-lined. It argues that where evidence challenges the powerful, is surprising and shocking, or undercuts current institutional and policy arrangements, then that evidence is likely to be ignored, undermined or refuted - all factors which are present in the case of historical institutional child sexual abuse. PMID- 29042064 TI - Botulinum toxin therapy as an early intervention for post-stroke spasticity: Beyond a functional viewpoint. PMID- 29042063 TI - [Pharmacokinetic and clinical effects of two bupivacaine concentrations on axillary brachial plexus block]. AB - INTRODUCTION: The risk of systemic bupivacaine toxicity is a persistent problem, which makes its pharmacokinetic study fundamental for regional anesthesia safety. There is little evidence of its influence on plasma peak at different concentrations. The present study compares two bupivacaine concentrations to establish how the concentration affects this drug plasma peak in axillary brachial plexus block. Postoperative latency and analgesia were also compared. METHODS: 30 patients were randomized. In the 0.25% Group, 0.25% bupivacaine (10mL) was injected per nerve. In the 0.5% Group, 0.5% bupivacaine (5mL) was injected per nerve. Peripheral blood samples were collected during the first 2hours after the blockade. For sample analyses, high performance liquid chromatography mass spectrometry was used. RESULTS: Plasma peak occurred 45minutes after the blockade, with no difference between groups at the assessed time-points. Plasma peak was 933.97 +/- 328.03 ng.mL-1 (mean +/- SD) in 0.25% Group and 1022.79 +/- 253.81 ng.mL-1 in 0.5% Group (p = 0.414). Latency was lower in 0.5% Group than in 0.25% Group (10.67 +/- 3.71 * 17.33min +/- 5.30, respectively, p = 0.004). No patient had pain within the first 4hours after the blockade. CONCLUSION: For axillary brachial plexus block, there was no difference in bupivacaine plasma peak despite the use of different concentrations with the same local anesthetic mass. The concentration inversely influenced latency. PMID- 29042065 TI - Analgesic and anxiolytic effects of [Leu31,Pro34]-neuropeptide Y microinjected into the periaqueductal gray in rats. AB - Several reports have demonstrated that neuropeptide Y (NPY) is involved in food intake, epilepsy, circadian rhythms, drug seeking, pain and anxiety, and other physiological or pathological conditions. On the other hand, periaqueductal gray (PAG) is a key brain center for modulating pain, anxiety and fear. It is the main structure implicated in integrated defensive behaviors. One such behavior, tonic immobility (TI), resembles fear and is able to induce analgesia. After microinjection of [Leu31,Pro34]-Neuropeptide Y ([Leu31,Pro34]-NPY) into the PAG dorsal (D) or ventrolateral (VL) of adult male Wistar rats, the following parameters were assessed: i) the analgesic effect by means of the tail-flick test (TF), ii) the duration of TI as a passive defensive behavioral response and as an anxiety/fear model (considering both TF and TI as single behaviors), iii) TI induced analgesia by the combination of TF/TI, and iv) the anxious-like state through the elevated plus maze (EPM), and defensive burying behavior (DBB). The results show that the microinjection of [Leu31,Pro34]-NPY into the PAG produced an analgesic effect (increasing the TF latency); overall decreased the TI duration, which might represent an important anti-fear effect. Moreover, [Leu31,Pro34]-NPY microinjected into the PAG allows for a TI-induced analgesic effect, as well as, a substantial anxiolytic effect (evidenced by the EPM and DBB models). Hence, [Leu31,Pro34]-NPY microinjected into the PAG, especially at 0.47nmol/0.5MUL produces both analgesic and anxiolytic effects, in a higher magnitude within ventrolateral area. PMID- 29042066 TI - LM and SEM study on the swordfish (Xiphias gladius) tongue. AB - Swordfish (Xiphias gladius L. 1758) is a predatory and migratory fish. Its characteristic feature is a flat and sharp upper jaw forming a "sword". The adaptation of vertebrates, including fish, to their environment is strictly related to the capacity of feeding and is carried out by often severe modifications of the anatomy of the buccal cavity, especially of the tongue. The aim of this study is, using light and scanning electron microscopy and considering that no data are so far available about the morphology of the tongue in this species, to analyse the anatomical characteristics of the tongue, especially its dorsal surface. The tongue shows a triangular shape and an apex, a body and a root. By SEM the presence of several small denticles and filiform papillae on the latero-ventral body was demonstrated while no taste buds or other sensitive structures are observed. LM shows a squamous stratified epithelium, becoming simple cuboidal around the denticles. Therefore this study could add further data to the knowledges of the fish oral cavity morphology supporting the hypothesis that the modifications and evolution of the tongue anatomy are, also in fish, related to the environment and especially to the feeding habits. PMID- 29042067 TI - Malignant external otitis: The shifting treatment paradigm. AB - IMPORTANCE: Malignant external otitis (MEO) is an aggressive infection occurring in immunocompromised hosts. Increasing antimicrobial resistance is making the disease more difficult to treat. OBJECTIVE: Determine if there has been a shift in the microbiology and outcomes of MEO. DESIGN: A retrospective case series at a tertiary care institution. SETTING: Inpatient and outpatient tertiary care hospital. PARTICIPANTS: 12 cases of recent MEO were reviewed. MAIN OUTCOMES AND MEASURES: The primary outcome was progression of disease. Secondary outcomes were drug resistance and complications of MEO. RESULTS: Only 4 patients were cured of MEO. Four patients expired during the study period and at least one of these deaths was a direct result of the MEO. 7 patients developed Cranial nerve palsies, and 3 patients developed abscesses. CONCLUSIONS: Select cases of MEO now require multi-drug and long-term parenteral antibiotic therapy with extended hospital stays. PMID- 29042068 TI - Reduction of bone mineral density in native Chinese female idiopathic benign paroxysmal positional vertigo patients. AB - OBJECTIVE: This study aimed to investigate the clinical association between idiopathic benign paroxysmal positional vertigo (BPPV) and reduction of bone mineral density (BMD). METHODS: BMD was measured in 78 native Chinese female de novo idiopathic BPPV patients and 126 healthy controls using dual-energy X-ray absorptiometry. We compared the mean T-scores and abnormal BMD prevalence between the two groups. RESULTS: The mean T-scores were significantly lower in idiopathic BPPV patients than in healthy controls. The prevalence of osteopenia and osteoporosis were significantly higher in idiopathic BPPV patients than in healthy controls (65.4% vs 48.4%, p=0.013). CONCLUSION: BMD reduction may be associated with idiopathic BPPV occurrence. PMID- 29042069 TI - Mind over bladder: Women, aging, and bladder health. AB - The purpose of this study was to explore the efficacy and acceptability of an innovative, electronically delivered self-management intervention for urinary incontinence (UI) that included daily mindfulness practice, completion of sequential bladder diaries, and bladder health education to improve UI in older women living independently in a retirement community. A mixed methods pilot study was conducted over ten weeks using a custom website or CD. Ten women were recruited and 8 completed the study; 5 of those (71%) experienced fewer daily UI episodes post intervention (p = 0.055). The women also reported a statistically significant decrease in the impact UI had on their everyday life (p = 0.04). Seventy-one percent (N = 5) reported subjective improvement in UI, and high acceptability scores also were achieved. The intervention was both effective in helping older women self-manage UI and acceptable to the population group. Further research is needed with a larger and diverse population of older women. PMID- 29042070 TI - Geriatric palliative care: Meeting the needs of a growing population. AB - The implementation of effective geriatric palliative care (PC) services will be increasingly important as the number of patients ages >=65 years continues to grow. However, literature characterizing the utilization of PC services by older adults remains scant. The objective of these analyses was to characterize the nature and outcomes of PC services for older adults. A retrospective analysis of records of inpatient PC consultations provided to patients >=65 years at an academic hospital was performed (N = 743). Logistic regressions identified factors associated with goals of care discussions (GOC), end-of-life (EOL) coordination, and hospital readmission. Differences between older adult subgroups (i.e., 65-84 years and 85 years and older) were also examined. Discharge to home was associated with higher odds of readmission and discharge to hospice or having a GOC discussion was associated with lower odds of readmission. Those patients who were 85 years or older were significantly less likely to have cancer or to be referred for pain management, and more likely to be referred for GOC discussions and discharged to hospice. This study revealed dynamic factors associated with PC consultation for older adults. GOC discussions in initial PC consultations for older patients might reduce the odds of hospital readmission. Additionally, the needs of patients ages 85 and older appear distinct from the traditional PC cancer model. PMID- 29042071 TI - Influence of Ginkgo Biloba extract (EGb 761) on expression of IL-1 Beta, IL-6, TNF-alfa, HSP-70, HSF-1 and COX-2 after noise exposure in the rat cochlea. AB - OBJECTIVE: The objective of this study was to investigate the influence of Ginkgo Biloba in early treatment of noise induced hearing loss on expression of IL-6, IL 1 Beta, TNF-alfa, HSP-70, HSF-1 and COX-2 in the rat cochlea. METHODS: Thirty two female rats were randomly divided into four groups (Acoustic Trauma, Ginkgo Biloba, Acoustic Trauma+Ginkgo Biloba, Non Treatment). Auditory brainstem response (ABR) was applied in all the groups. At the end of the study, IL-1Beta, IL-6, TNF-alpha, HSP-70, HSF-1 and COX-2 were studied in cochlear tissue with ELISA and Western blot analysis. RESULTS: There were significant increases in ABR values measured at days 1 and 7 compared to baseline values in Group 3. IL-1 Beta, IL-6 and TNF-alpha values were significantly higher in Group 1 than in the other groups. Whereas HSP-70 and HSF-1 values were found to be significantly lower in Group 1 compared to those in Group 2 and Group 3. COX-2 of Group 1 was significantly higher than the other groups. CONCLUSION: Ginkgo Biloba is helpful in the treatment of noise induced hearing loss and exerts its effect by inhibiting expression of IL-1 Beta, IL-6, TNF-alpha and COX-2 and increasing HSP 70 and HSF-1 values in rat cochlea. PMID- 29042072 TI - miR-200b downregulates Kruppel Like Factor 2 (KLF2) during acute hypoxia in human endothelial cells. AB - The role of microRNAs in controlling angiogenesis is recognized as a promising therapeutic target in both cancer and cardiovascular disorders. However, understanding a miRNA's pleiotropic effects on angiogenesis is a limiting factor for these types of therapeutic approaches. Using genome-wide next-generation sequencing, we examined the role of an antiangiogenic miRNA, miR-200b, in primary human endothelial cells. The results indicate that miR-200b has complex effects on hypoxia-induced angiogenesis in human endothelia and importantly, that many of the reported miR-200b effects using miRNA overexpression may not be representative of the physiological role of this miRNA. We also identified the antiangiogenic KLF2 gene as a novel target of miR-200b. Our studies indicate that the physiological changes in miR-200b levels during acute hypoxia may actually have a proangiogenic effect through Klf2 downregulation and subsequent stabilization of HIF-1 signaling. Moreover, we provide a viable approach for differentiating direct from indirect miRNA effects in order to untangle the complexity of individual miRNA networks. PMID- 29042073 TI - Functional network dysconnectivity as a biomarker of treatment resistance in schizophrenia. AB - Schizophrenia may develop from disruptions in functional connectivity regulated by neurotransmitters such as dopamine and acetylcholine. The modulatory effects of these neurotransmitters might explain how antipsychotics attenuate symptoms of schizophrenia and account for the variable response to antipsychotics observed in clinical practice. Based on the putative mechanisms of antipsychotics and evidence of disrupted connectivity in schizophrenia, we hypothesised that functional network connectivity, as assessed using network-based statistics, would exhibit differences between treatment response subtypes of schizophrenia and healthy controls. Resting-state functional MRI data were obtained from 17 healthy controls as well as individuals with schizophrenia who responded well to first-line atypical antipsychotics (first-line responders; FLR, n=18), had failed at least two trials of antipsychotics but responded to clozapine (treatment resistant schizophrenia; TRS, n=18), or failed at least two trials of antipsychotics and a trial of clozapine (ultra-treatment-resistant schizophrenia; UTRS, n=16). Data were pre-processed using the Advanced Normalization Toolkit and BrainWavelet Toolbox. Network connectivity was assessed using the Network-Based Statistics toolbox in Matlab. ANOVA revealed a significant difference in functional connectivity between groups that extended between cerebellar and parietal regions to the frontal cortex (p<0.05). Post-hoc t-tests revealed weaker network connectivity in individuals with UTRS compared with healthy controls but no other differences between groups. Results demonstrated distinct differences in functional connectivity between individuals with UTRS and healthy controls. Future work must determine whether these changes occur prior to the onset of treatment and if they can be used to predict resistance to antipsychotics during first-episode psychosis. PMID- 29042074 TI - Stereotactic vacuum-assisted breast biopsy: Comparison between 11- and 8-gauge needles. AB - PURPOSE: The 11-gauge (11G) stereotactic vacuum-assisted breast biopsy (VABB) showed a better profile than 14G-VABB in terms of feasibility, safety, microcalcification sampling, and accuracy. Underestimation rates were significantly lower with 11G-VABB than with 14G-VABB. Thus, the introduction of an even larger needle at the VABB procedure could reduce this rate further. The purpose of this study was to compare the overall performance of stereotactic VABB with 8G and 11G needles. MATERIALS AND METHODS: Four hundred and three VABBs performed between July 2012 and February 2015 at the Breast Diagnostic Unit of Careggi Hospital in Florence were retrospectively analyzed; 197 were performed with 11G-VABB and 206 with 8G-VABB. Lesions were classified according to mammographical patterns in microcalcifications, architectural distortions, or opacities, and all biopsy targets were classified according to BIRADS classification as BIRADS III, IV or V. Data were collected on radiological classification of targets, imaging presentation, procedure time, number of specimens per procedure, and microcalcification retrieval on histological findings. Surgery was always performed when high-risk or malignant lesions (B3 or B5) were detected; the final diagnosis was made on surgical pathology. RESULTS: Compared to VABB with an 11G needle, 8G-VABB allows a reduction in the time needed to complete the procedure (20.6 versus 27.4, P < 0.00001) and the number of specimens collected per lesion (21.6 versus 12.2, P < 0.00001). Moreover, 8G VABB resulted in the same diagnostic accuracy, and the underestimation rates were comparable between the two groups for both B3 and DCIS lesions. CONCLUSIONS: The 8G needle should be considered as a valid alternative option in VABB for breast lesions. PMID- 29042075 TI - Evolution of type II endoleaks based on different ultrasound-identified patterns. AB - OBJECTIVE: The objective of this study was to delineate the specific types of waveforms that exist in type II endoleaks (T2ELs) and their effect on aneurysm sac size. METHODS: Patients who underwent an endovascular aneurysm repair and were diagnosed with a T2EL were included in the study. The flow velocity characteristics of the T2ELs were evaluated in detail with duplex ultrasound. Four different flow patterns were identified: high resistance, low flow; low resistance, low flow; low resistance, high flow; and to-fro flow. The type and number of vessels involved, time at detection, evolution, and need for treatment were recorded. The aneurysm sac diameter was monitored with duplex ultrasound. A computed tomography scan was always performed at baseline within 1 month of the procedure and repeated only when symptoms developed or there were changes in the ultrasound examination findings, such as sac enlargement. RESULTS: Of 382 patients who underwent endovascular aneurysm repair in our institution, 56 (14.65%) were found to have a T2EL. There were 52 male and four female patients with a mean age of 74 years (61-86 years). The T2EL was diagnosed within the first month in 32 patients; 9 patients were diagnosed at 3 months, 5 patients at 6 months, 3 patients at 9 months, and 7 patients at 1 year or later. There were 43 patients who had a T2EL involving one vessel; two vessels were involved in 11 patients and three vessels were involved in two patients. During follow-up, several changes were observed for the different types of T2EL. High-resistance, low-flow endoleak was detected in 14 patients; of those, 13 were occluded and 1 converted to high flow. Low-resistance, low-flow endoleak was detected in seven patients; of those, 5 were occluded, 1 remained stable, and 1 converted to high flow with sac enlargement requiring treatment. Low-resistance, high-flow endoleak was found in 13 patients; of those, 8 were occluded, 3 remained stable, and 2 had sac enlargement requiring treatment; 1 patient presented with rupture. Finally, to-fro flow was identified in the majority of the patients (22); of those, 14 occluded, 3 remained stable, and 5 had sac enlargement requiring treatment; 2 patients presented with rupture. No deaths due to T2EL were encountered. CONCLUSIONS: Most of the T2ELs resulted in spontaneous occlusion and were not associated with sac enlargement. A low-resistance, high-flow or to-fro flow T2EL has higher chances of sac enlargement, rupture, and requiring reintervention. PMID- 29042077 TI - Cross-countries migratory workers and tuberculosis: Lessons from Armenia. PMID- 29042076 TI - Perioperative outcomes after reoperative carotid endarterectomy are worse than expected. AB - OBJECTIVE: Reoperative carotid endarterectomy (CEA) can be technically challenging because of significant scarring as a consequence of the initial CEA procedure. There are limited data that describe outcomes after reoperative CEA, and as such, our goal was to determine the effect of reoperative CEA on perioperative outcomes. METHODS: The American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database was queried for patients undergoing index and reoperative CEA between 2005 and 2014. Multivariate analysis was performed to assess the effect of reoperative CEA on outcomes including stroke, major adverse cardiovascular event, and procedure time. RESULTS: There were 75,943 index and 140 reoperative CEAs identified. No differences were found in baseline demographics or comorbidities except that the reoperative group had a higher incidence of patients with end-stage renal disease (3.6% vs 1.1%; P = .004). Prior stroke with deficit (20.8% vs 15.4%; P = .137) and without deficit (11.5% vs 9.1%; P = .43) were similar between reoperative and index CEA groups. Both the reoperative and index initial CEA cohorts had comparable rates of surgical site infection (0.7% vs 0.3%; P = .462), return to the operating room (3.6% vs 4%; P = .816), readmission with 30 days (2.1% vs 6.9%; P = .810), myocardial infarction (2.1% vs 0.9%; P = .125), and perioperative death (0.7% vs 0.9%; P = .853). The reoperative cohort had a significantly higher rate of perioperative stroke (5.0% vs 1.6%; P = .002) and a longer operative duration (137 +/- 54 vs 116 +/- 49 minutes; P < .001). Multivariate analysis revealed that reoperative CEA was an independent factor for postoperative stroke (odds ratio, 3.71; 95% confidence interval [CI], 1.61-8.57; P = .002), major adverse cardiovascular event (odds ratio, 2.76; 95% CI, 1.32 5.78; P = .007), and longer procedure time (means ratio, 1.21; 95% CI, 1.12-1.30; P < .001). CONCLUSIONS: Reoperative carotid surgery is associated with a longer operative time and higher risk for perioperative stroke compared with index CEA. This information informs the risk-benefit analysis for reoperation. PMID- 29042078 TI - Bioactivity and fluoride release of strontium and fluoride modified Biodentine. AB - : BiodentineTM is a novel tricalcium silicate based material used both as a coronal dentine replacement and in pulp therapy. Its multiple use in sealing perforations, pulp capping and as a temporary restoration arises from its ability to promote dentine formation and to confer an excellent marginal seal. However, there is still room for improvement of this cement as it lacks the anticariogenic effect typically conferred by fluoride ion release as seen in glass ionomer cement based dental materials. Therefore, this study was conducted to investigate the impact of bioactive glass addition to BiodentineTM. OBJECTIVE: was to compare the apatite formation capacity, specificity of the apatite type formed and fluoride ion release by BiodentineTM cements that have been modified by three different compositions of bioactive glasses. METHODS: High fluoride, high strontium and high fluoride plus strontium containing bioactive glasses were synthesized, incorporated into BiodentineTM powder and four types of cements prepared. These cements were immersed in phosphate buffered saline solution and incubated for a period of 3 and 24h, 3, 7 and 14 days. Fourier transform infra red spectroscopy, X-ray diffraction, magic angle spinning nuclear magnetic resonance and fluoride ion release studies were performed. RESULTS: Bioactive glass addition to BiodentineTM led to pronounced formation of apatite. Where the bioactive glass contained fluoride, fluorapatite and fluoride ion release were demonstrated. SIGNIFICANCE: Eliciting fluorapatite formation and fluoride ion release from BiodentineTM is an important development as fluoride is known to have antibacterial and anticariogenic effects. PMID- 29042079 TI - Cytotoxicity and DNA double-strand breaks in human gingival fibroblasts exposed to eluates of dental composites. AB - OBJECTIVE: Previously, single composite components were used to study cytotoxicity and induction of DNA double-strand breaks (DNA-DSBs) of dental composite resins. In the present study, cytotoxicity and induction of DNA-DSBs in human gingival fibroblasts (HGFs) were investigated with dental composite eluates consisting of multiple components. The eluates were qualified and quantified. METHODS: The composites Esthet.X(r) HD, Venus(r), X-tra fil(r), CLEARFILTM AP-X, Admira(r) Fusion and QuiXfil(r) were polymerized and immersed into Dulbecco's modified Eagle's medium (DMEM) for 72h. Subsequently, HGFs were incubated with the corresponding composite eluates. The cell viability of HGFs was obtained from an XTT assay. DNA-DSBs were determined using a gamma-H2AX assay. The qualification and quantification of eluates were performed by gas chromatography/mass spectrometry (GC/MS). RESULTS: HGFs exposed to the eluates of all investigated composites showed no significant loss of cell viability, compared to negative control. Significant DNA-DSBs induction could be found in HGFs exposed to the eluates of Esthet.X(r) HD (0.43+/-0.05 foci/cell) and Venus(r) (0.39+/-0.04 foci/cell), compared to control (0.22+/-0.03 foci/cell). A total of 12 substances were detected from the investigated composite eluates. Five of them were methacrylates: tetraethyleneglycol dimethacrylate (TEGDMA), 2 hydroxyethyl methacrylate (HEMA), hydroxypropyl methacrylate (HPMA), ethyleneglycol dimethacrylate (EGDMA) and trimethylolpropane trimethacrylate (TMPTMA). The highest concentration of HEMA (110.5MUM), HPMA (86.08MUM) and TMPTMA (4.50MUM) was detected in the eluates of QuiXfil(r). The highest concentration of TEGDMA was 1080MUM in Venus(r) eluates and the highest concentration of EGDMA was 3.18MUM in Esthet.X(r) HD eluates. SIGNIFICANCE: Significant DNA-DSBs induction can be found in HGFs exposed to the eluates of Esthet.X(r) HD and Venus(r). The interactive effects among released (co)monomers and additives may influence the cytotoxicity and induction of DNA-DSBs, compared to exposure with single composite component. PMID- 29042080 TI - APOL1 nephropathy risk variants do not associate with subclinical atherosclerosis or left ventricular mass in middle-aged black adults. AB - Prior studies reported associations of APOL1 nephropathy risk variants with subclinical atherosclerosis. However, these findings were limited to older individuals with high comorbidities. To evaluate this in younger individuals, we calculated associations of APOL1 risk variants (high risk [2 risk variants] vs. low risk [0-1 risk variant]) with prevalent, incident, or progressive coronary artery calcification, a carotid intima media thickness over the 90th percentile, and left ventricular hypertrophy in 1315 black participants of the Coronary Artery Risk Development in Young Adults (CARDIA) study. The mean age of this cohort was 44.6 years and their mean estimated glomerular filtration rate was 102.5 ml/min/1.73m2. High-risk participants were found to be younger and have a higher prevalence of albuminuria than low-risk participants. In Poisson regression models adjusted for comorbidities and kidney function, the risk of prevalent coronary artery calcification (relative risk [95% confidence interval] 1.12 [0.72,1.71]), the incident coronary artery calcification (1.50 [0.87,2.59]), and the progression of coronary artery calcification (1.40 [0.88,2.23]) did not significantly differ in high vs. low-risk participants. Furthermore, the risk of carotid intima media thickness over the 90th percentile (1.28 [0.78,2.10]) and left ventricular hypertrophy (1.02[0.73,1.43]) did not significantly differ in high vs. low-risk participants in fully-adjusted models. Thus, APOL1 risk variants did not associate with subclinical markers of atherosclerosis or left ventricular hypertrophy in middle-aged black adults with preserved kidney function. PMID- 29042081 TI - Peritoneal dialysis is associated with better cognitive function than hemodialysis over a one-year course. AB - Impaired cognitive functioning in patients with end-stage renal disease may reduce their capabilities to adhere to complex medical or dietary regimens and to fully participate in medical decisions. With decreasing renal function, cognitive abilities are likely to decline, with cognitive dysfunction improving after initiation of dialysis and even being generally reversible after successful renal transplantation. However, little is known about cognitive changes particularly regarding different treatment modalities. To gain further insight into this, we focused on a one-year course of cognitive functions, comparing peritoneal to hemodialysis patients. Within the CORETH-project, two validated neurocognitive tests, assessing executive functioning (Trail Making Test-B) and attention (d2 Revision-Test) and the self-reported Kidney Disease Quality of Life Short Form Cognitive Function-subscale, were administered to 271 patients at baseline and after one year. Subsamples were matched by propensity score, adjusting for age, comorbidity, education, and employment status for 96 hemodialysis and 101 peritoneal dialysis patients. The effects of time and treatment modality were investigated, controlling for well-known confounders. Both tests revealed improvement over one year. Peritoneal dialysis was associated with better outcomes than hemodialysis at baseline and follow-up, but comparability between groups may be limited. The opposite pattern applied to self-reporting. Hemodialysis patients had to be excluded from cognitive testing more often than peritoneal dialysis patients. As such, the number of exclusions may have biased the findings, limiting generalizability. Thus, our findings suggest an improvement of cognitive functioning and support previous indications for peritoneal dialysis being associated with better cognitive functions during a one year course than hemodialysis. PMID- 29042082 TI - The proto-oncogene tyrosine protein kinase Src is essential for macrophage myofibroblast transition during renal scarring. AB - Src activation has been associated with fibrogenesis after kidney injury. Macrophage-myofibroblast transition is a newly identified process to generate collagen-producing myofibroblasts locally in the kidney undergoing fibrosis in a TGF-beta/Smad3-dependent manner. The potential role of the macrophage myofibroblast transition in Src-mediated renal fibrosis is unknown. In studying this by RNA sequencing at single-cell resolution, we uncovered a unique Src centric regulatory gene network as a key underlying mechanism of macrophage myofibroblast transition. A total of 501 differentially expressed genes associated with macrophage-myofibroblast transition were identified. However, Smad3-knockout largely reduced the transcriptome diversity. More importantly, inhibition of Src largely suppresses ureteral obstruction-induced macrophage myofibroblast transition in the injured kidney in vivo along with transforming growth factor-beta1-induced elongated fibroblast-like morphology, alpha-smooth muscle actin expression and collagen production in bone marrow derived macrophages in vitro. Unexpectedly, we further uncovered that Src serves as a direct Smad3 target gene and also specifically up-regulated in macrophages during macrophage-myofibroblast transition. Thus, macrophage-myofibroblast transition contributes to Src-mediated tissue fibrosis. Hence, targeting Src may represent as a precision therapeutic strategy for macrophage-myofibroblast transition driven fibrotic diseases. PMID- 29042083 TI - Aprotinin prevents proteolytic epithelial sodium channel (ENaC) activation and volume retention in nephrotic syndrome. AB - Volume retention in nephrotic syndrome has been linked to activation of the epithelial sodium channel (ENaC) by proteolysis of its gamma-subunit following urinary excretion of serine proteases such as plasmin. Here we tested whether pharmacological inhibition of urinary serine protease activity might protect from ENaC activation and volume retention in nephrotic syndrome. Urine from both nephrotic mice (induced by doxorubicin injection) and nephrotic patients exhibited high aprotinin-sensitive serine protease activity. Treatment of nephrotic mice with the serine protease inhibitor aprotinin by means of subcutaneous sustained-release pellets normalized urinary serine protease activity and prevented sodium retention, as did treatment with the ENaC inhibitor amiloride. In the kidney cortex from nephrotic mice, immunofluorescence revealed increased apical gamma-ENaC staining, normalized by aprotinin treatment. In Xenopus laevis oocytes heterologously expressing murine ENaC, aprotinin had no direct inhibitory effect on channel activity but prevented proteolytic channel activation. Thus, our study shows that volume retention in experimental nephrotic syndrome is related to proteolytic ENaC activation by proteasuria and can be prevented by treatment with aprotinin. Hence, inhibition of urinary serine protease activity might become a therapeutic approach to treat patients with nephrotic-range proteinuria. PMID- 29042084 TI - Adenylyl cyclase 5 deficiency reduces renal cyclic AMP and cyst growth in an orthologous mouse model of polycystic kidney disease. AB - Cyclic AMP promotes cyst growth in polycystic kidney disease (PKD) by stimulating cell proliferation and fluid secretion. Previously, we showed that the primary cilium of renal epithelial cells contains a cAMP regulatory complex comprising adenylyl cyclases 5 and 6 (AC5/6), polycystin-2, A-kinase anchoring protein 150, protein kinase A, and phosphodiesterase 4C. In Kif3a mutant cells that lack primary cilia, the formation of this regulatory complex is disrupted and cAMP levels are increased. Inhibition of AC5 reduces cAMP levels in Kif3a mutant cells, suggesting that AC5 may mediate the increase in cAMP in PKD. Here, we examined the role of AC5 in an orthologous mouse model of PKD caused by kidney specific ablation of Pkd2. Knockdown of AC5 with siRNA attenuated the increase in cAMP levels in Pkd2-deficient renal epithelial cells. Levels of cAMP and AC5 mRNA transcripts were elevated in the kidneys of mice with collecting duct-specific ablation of Pkd2. Compared with Pkd2 single mutant mice, AC5/Pkd2 double mutant mice had less kidney enlargement, lower cyst index, reduced kidney injury, and improved kidney function. Importantly, cAMP levels and cAMP-dependent signaling were reduced in the kidneys of AC5/Pkd2 double mutant compared to the kidneys of Pkd2 single mutant mice. Additionally, we localized endogenous AC5 in the primary cilium of renal epithelial cells and showed that ablation of AC5 reduced ciliary elongation in the kidneys of Pkd2 mutant mice. Thus, AC5 contributes importantly to increased renal cAMP levels and cyst growth in Pkd2 mutant mice, and inhibition of AC5 may be beneficial in the treatment of PKD. PMID- 29042086 TI - Effects of heat and cadmium exposure on stress-related responses in the liver of female zebrafish: Heat increases cadmium toxicity. AB - In this study, female zebrafish (Danio rerio) were exposed to 26 degrees C or 34 degrees C, 0 or 197MUg/L cadmium (Cd), singly or in combination for 7days. Multiple stress-related indicators were evaluated in the liver. Mortality, lipid peroxidation (LPO) and ultrastructural damage increased significantly by Cd exposure alone, and were not affected by heat alone. Interestingly, the combined exposure increased LPO, ultrastructural damage, and mortality compared with Cd exposure alone. The results indicated that elevated temperature increased Cd toxicity, which could be explained by several reasons. Firstly, Cd-exposed fish failed to activate the antioxidant defense system under heat stress. Secondly, expression levels of heat shock protein 70 (HSP70) were not significantly up regulated by heat in Cd-exposed fish but increased by 117 times in Cd-free fish. Besides, hypermethylation of heat shock factor (HSF) binding motif in HSP70 promoter was observed during the combined exposure, indicating that simultaneous exposure may have partially suppressed the cytoprotective up-regulation of HSP70. Thirdly, heat induced an immunosuppressive effect in Cd-exposed fish, as reflected by the reduced mRNA and activity levels of nitric oxide synthase (iNOS) and interleukin-1beta (IL-1beta) expression levels. Finally, heat down-regulated Zir-, Irt-like protein 8 (ZIP8) and copper transporter 1 (CTR1) and up-regulated metallothioneins (MTs) in Cd-exposed fish, possibly suggesting Cu and Zn depletion and Cd accumulation. Hence, our data provide evidences that warmer temperatures can potentiate Cd toxicity, involved in the regulation of gene transcription, enzymatic activity, and DNA methylation. We found that heat indicators showed varied sensitivity between normal and Cd-exposed fish, emphasizing that the field metal pollution should be carefully considered when evaluating effects of climate change. PMID- 29042085 TI - Advances in the management of HER2-positive early breast cancer. AB - While trastuzumab is firmly established as the cornerstone of therapy for both early and advanced breast cancer expressing human epidermal growth factor receptor 2 (HER2), many patients either do not respond to trastuzumab treatment or progress following therapy. Improved understanding of breast cancer biology, particularly the complex signaling interactions managed by the HER family of receptors, have resulted in development of several novel HER2-directed therapies and combinations. This article will review the novel approaches to HER2 targeting that have been developed in recent years, with particular focus on results from these approaches in early breast cancer, and will discuss strategies to improve the tolerability of HER2-directed therapies, including prevention of cardiac toxicity and diarrhea. PMID- 29042087 TI - Methyl siloxanes in barbershops and residence indoor dust and the implication for human exposures. AB - Methyl siloxanes (MSs) have been widely added as emollients or solvents in various personal care products (PCPs) such as soap, shampoo and hair conditioner. A considerable percentage of MSs are released into the atmosphere directly from the use of PCPs in indoor environments. Indoor dust is a major reservoir of MSs, due to their particle-binding affinity. Dust ingestion could be one exposure pathway for special populations (hairdressers, for example). Though the toxicity of MSs is known, there is no information regarding the occurrence of MSs in barbershop dusts and the exposure of hairdressers through indoor dust ingestion. In the present study, the levels of three cyclic siloxanes (D4-D6) and 13 linear siloxanes (L4-L16) were measured in indoor dust samples collected from barbershops, and some other microenvironment including bathhouses, dormitories and households for comparison. The concentrations of ?MSs in barbershop dusts were one to two orders of magnitude higher than those from the other three indoor microenvironments. The daily intakes of ?MSs through indoor dust ingestion were estimated using the model of worst-case exposure (95th percentile concentration) and high dust ingestion, For the hairdressers in workplaces (barbershops), the exposure rates were 14.3ng/kg-bw/day, and for the general population, college students and toddlers (1-3yr), the corresponding exposure rates in living spaces were 3.43, 2.00 and 222ng/kg-bw/day, respectively. Such high exposure levels of MSs through dust ingestion indicate that we should not overlook the potential health risks for occupational groups and toddlers. PMID- 29042088 TI - Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union. AB - Approval for glyphosate-based herbicides in the European Union (EU) is under intense debate due to concern about their effects on the environment and human health. The occurrence of glyphosate residues in European water bodies is rather well documented whereas only few, fragmented and outdated information is available for European soils. We provide the first large-scale assessment of distribution (occurrence and concentrations) of glyphosate and its main metabolite aminomethylphosphonic acid (AMPA) in EU agricultural topsoils, and estimate their potential spreading by wind and water erosion. Glyphosate and/or AMPA were present in 45% of the topsoils collected, originating from eleven countries and six crop systems, with a maximum concentration of 2mgkg-1. Several glyphosate and AMPA hotspots were identified across the EU. Soil loss rates (obtained from recently derived European maps) were used to estimate the potential export of glyphosate and AMPA by wind and water erosion. The estimated exports, result of a conceptually simple model, clearly indicate that particulate transport can contribute to human and environmental exposure to herbicide residues. Residue threshold values in soils are urgently needed to define potential risks for soil health and off site effects related to export by wind and water erosion. PMID- 29042089 TI - Observation of nighttime new particle formation over the French Landes forest. AB - Improving the understanding of processes related to atmospheric particle sources is essential to better assess future climate. Especially, how biogenic volatile organic compounds (BVOCs) are involved in new particle formation (NPF) is still unclear, highlighting the need for field studies in sites that have not yet been explored. Weakly anthropised, mostly composed of maritime pines (known as strong monoterpene emitters), vast and under the influence of sea spray inputs, the Landes forest (located in the southwestern part of France) is a suitable ecosystem to explore these questions. The aim of the present work was to investigate for the first time NPF in the Landes forest, and to identify the conditions for NPF. During a field campaign conducted in July 2015, clear NPF was observed during nighttime, at a high frequency rate (37.5%), whereas only two daytime episodes were observed. Growth rates during NPF events were in the range 9.0-15.7nmh-1, and nucleation rates (J10) in the range 0.8-8 particles cm3s-1, typically in the range of reported values from rural sites. Nocturnal NPF started at sunset, lagging the reductions of temperature and ozone concentration as well as the increase of relative humidity, atmospheric stability and monoterpene concentration. We established that NPF occurred during more stratified atmosphere episodes, reflecting that NPF is more influenced by local processes at the Landes forest site (Bilos). Concentration of the sum of monoterpenes, here mainly alpha- and beta-pinene, was observed to be maximal during NPF episodes. On the contrary, ozone concentration was lower, which may indicate a larger consumption during nights where NPF episodes occur. Results strongly suggest the contribution of BVOC oxidation to nocturnal NPF, in both nucleation and the growth stages. PMID- 29042090 TI - The natural history of flail chest injuries. AB - PURPOSE: Flail chest (FC) injuries represent a significant burden on trauma services because of its high morbidity and mortality. Current gold standard conservative management strategies for FC, are now being challenged by renewed interest in surgical rib fixation. This retrospective epidemiological study sets out to evaluate FC patients, and quantify the natural history of this injury by studying the injury patterns, epidemiology and mortality of patients sustaining FC injuries admitted to a major trauma centre (MTC). METHODS: A retrospective cohort analysis has been conducted at an MTC with full trauma service. All patients (age > 16 years) sustaining FC were included. Patient demographics, injury characteristics and inpatient stay information were extracted. RESULTS: Two hundred and ninety-three patients were identified, with a mean injury severity score (ISS) of 28.9 (range 9-75), average age of 56.1 years (range of 16 100), and a male predominance (78%). Road traffic accidents accounted for 45% (n = 132) of injuries, whilst 44% were fall or jump from height (n = 129). Associated lung contusion was present in 133 patients (45%) while 76% of patients were found to have 5 or more ribs involved in the flail segment (n = 223) with 96% (n = 281) having a unilateral FC. Inpatient treatment was required 19.9 days (range 0-150 days) with 59% of patients (n = 173) requiring intensive care unit (ICU) level care for 8.4 days (range 1-63) with 61.8% requiring mechanical ventilation (n = 107) for 10.5 days (range 1-54), and 7.8% underwent rib fixation with rib plates (n = 23). The mortality rate was found to be 14% (n = 42). A non significant trend towards improved outcomes in the conservative group was found when compared with the fixation group; ventilation days (6.94 vs 10.06, p = 0.18) intensive treatment unit (ITU) length of stay (LOS) (12.56 vs 15.53, p = 0.28) and hospital LOS (32.62 vs 35.24, p = 0.69). CONCLUSION: This study has successfully described the natural history of flail chest injuries, and has found a nonsignificant trend towards better outcomes with conservative management. With the cohort and management challenges now defined, work on outcome improvement can be targeted. In addition the comparability of results to other studies makes collaboration with other MTCs a realistic proposal. PMID- 29042091 TI - Effects of renal denervation on coronary flow reserve and forearm dilation capacity in patients with treatment-resistant hypertension. A randomized, double blinded, sham-controlled clinical trial. AB - BACKGROUND: Microvascular impairment is well documented in hypertension. We investigated the effect of renal sympathetic denervation (RDN) on cardiac and peripheral microvasculature in patients with treatment-resistant essential hypertension (TRH). METHODS: A randomized, single centre, double-blinded, sham controlled clinical trial. Fifty-eight patients with TRH (ambulatory systolic BP (ASBP) >= 145mmHg) despite stable treatment were randomized to RDN or SHAM. RDN was performed with the unipolar Medtronic Flex catheter. Coronary flow reserve (CFR) and coronary- and forearm minimum vascular resistance (C-Rmin and F-Rmin) were determined using transthoracic Doppler echocardiography and F-Rmin with venous occlusion plethysmography at baseline and at six-months follow-up. RESULTS: RDN was performed with 5.3+/-0.2 lesions in the right renal artery and 5.4+/-0.2 lesions in the left. Baseline ASBP was 152+/-2mmHg (RDN, n=29) and 154+/-2mmHg (SHAM, n=29). Similar reductions in MAP were seen at follow up ( 3.5+/-2.0 vs. -3.2+/-1.8, P=0.92). Baseline CFR was 2.9+/-0.1 (RDN) and 2.4+/-0.1 (SHAM), with no significant change at follow-up (0.2+/-0.2 vs. -0.1+/-0.2, P=0.57). C-Rmin was 1.9+/-0.3 (RDN) and 2.7+/-0.6 (SHAM) (mmHgmin/ml pr. 100g) and did not change significantly (0.3+/-0.5 vs. -0.4+/-0.8, P=0.48). F-Rmin was 3.6+/-0.2 (RDN) and 3.6+/-0.3 (SHAM) (mmHgmin/ml pr. 100ml tissue) and unchanged at follow-up (4.2+/-0.4 vs. 3.8+/-0.2, P=0.17). Left ventricular mass index was unchanged following RDN (-4+/-7 (RDN) vs. 3+/-5 (SHAM) (g/m2) P=0.38). CONCLUSION: The current study does not support positive effects of RDN on microvascular impairment in TRH. PMID- 29042092 TI - Quality of life after surgical treatment of coarctation in long-term follow-up (CoAFU): Predictive value of clinical variables. AB - BACKGROUND: We sought to analyze the quality of life and the predictive value of clinical variables from previous follow-up study in patients late after surgical treatment of aortic coarctation on the quality of life. METHODS: All patients, who have participated in the prospective cross-sectional COALA Study in 2000 with a structural clinical investigation including blood pressure measurement and symptom-limited exercise test were contacted for the health-related quality of life questionnaire SF-36 from January 2013 through December 2014. RESULTS: From 273 eligible patients, we received data from 135 patients, 9 of them died during the follow-up time at the median age of 46years (range 30-64years). Seventy-four patients did not participate in the study, other 64 patients moved to remote or unknown areas and could not be contacted. Quality of life was good in the fields of physical role and pain. However, patients reported a significant impairment in general health and in health transition, depending on the age. Arterial hypertension and variables from echocardiography or exercise testing from the COALA study were not predictive on functional health status. CONCLUSION: Quality of life in patients late after aortic coarctation repair is fairly good compared with healthy controls. Impairments in general health and health transition depend mainly on age, can be explained due to numerous comorbidities and reinterventions in long-term. The predictive value of the commonly assessed clinical variables on quality of life is limited. PMID- 29042093 TI - Manifest ambiguity: Intermediate forms, variation, and mammal paleontology in Argentina, 1830-1880. AB - This paper presents the impact of diverse aspects of Darwin's works on the practices of mammal paleontology in different moments of nineteenth-century Argentina. Starting with Darwin through the publications of Florentino Ameghino, it shows the extraordinary complexity of systematic paleontology that characterized the second half of the nineteenth century. Neither "natural selection" nor "struggle for life" seemed to have shaped the practices of vertebrate paleontology in Argentina. Darwin's earlier work as a voyageur and geologist together with later concerns about intermediate forms and variation allow for an assessment of the impact of Darwin's work on the practice of paleontology in Argentina. PMID- 29042094 TI - Ustekinumab to treat Crohn's disease. AB - Ustekinumab is a monoclonal antibody directed against the p40 subunit, which is part of interleukins IL-12 and IL-23. The efficacy of ustekinumab versus placebo in terms of clinical response and remission of induction has been shown in phase3 clinical trials. When used as subcutaneous maintenance therapy, the therapeutic benefit of ustekinumab over placebo has been confirmed in both clinical response and remission in patients who have responded clinically to induction therapy. In addition, ustekinumab has demonstrated an improvement in mucosal healing parameters. The safety profile of the drug has been good, with low infection rates (without reactivation of tuberculosis) and absence of tumour reporting. The development of drug immunogenicity appears to be rare. In summary, ustekinumab is a promising treatment option in patients with Crohn's disease, as an alternative to anti-TNFalpha drugs. PMID- 29042096 TI - A wolf in sheep's clothing. PMID- 29042095 TI - Can emergency physicians accurately distinguish retinal detachment from posterior vitreous detachment with point-of-care ocular ultrasound? AB - STUDY OBJECTIVE: There is significant overlap between the symptoms of patients presenting with retinal detachment (RD) and posterior vitreous detachment (PVD). Urgency to obtain consultation and treatment are dependent on the ability to accurately distinguish these two conditions. The objective of this study was to determine the ability of emergency physicians to differentiate RDs from PVDs using point-of-care (POC) ocular ultrasound. METHODS: Single blinded cross sectional study at an academic medical center. Emergency physicians with varying ultrasound experience completed a brief tutorial on the sonographic findings of RD and PVD. Thirty POC ocular ultrasound clips obtained from ED patients with ocular symptoms were presented to emergency physicians. The sonographic findings in these clips were in agreement with the final diagnosis made by consultant ophthalmologists. There were 14 ultrasound videos showing PVD, 13 videos showing RD, and 3 normal ocular ultrasound videos. The subjects independently reviewed POC ocular ultrasound video clips and submitted their final interpretations. RESULTS: A total of 390 ocular video clips were reviewed by 13 emergency physicians. Overall, physicians were able to accurately diagnose the presence of a RD 74.6% (95%CI, 69.8-79.4) of the time, PVD 85.7% (95%CI, 77.6-93.8) of the time, and normal ultrasounds 94.9% (95%CI 87.3-100.0) of the time. There was no statistically significant relationship between correct diagnoses for ocular abnormalities or normal ultrasound images and number of previous ocular ultrasounds performed by emergency physicians. CONCLUSION: Emergency physicians were modestly accurate in distinguishing RD from PVD on POC ultrasound. PMID- 29042097 TI - Routine preoperative thoracic angiography or just follow the gut feeling? PMID- 29042098 TI - The sum of small pieces. PMID- 29042099 TI - If your hospital has RATS, do not exterminate. PMID- 29042100 TI - Limited root repair in acute type A aortic dissection is safe but results in increased risk of reoperation. AB - OBJECTIVE: Management of the aortic root is a challenge for surgeons treating acute type A aortic dissection. METHODS: We performed a retrospective review of the acute type A aortic dissection experience at Stanford Hospital between 2005 and 2015 and identified patients who underwent either limited root repair or aortic root replacement. Differences in baseline characteristics were balanced with inverse probability weighting to estimate the average treatment effect on the controls. Weighted logistic regression was used to evaluate in-hospital mortality. Weighted Cox proportional hazards regression was used to evaluate differences in the hazard for mid-term death. Reoperation was evaluated with death as a competing risk with the Fine-Gray subdistribution hazard. RESULTS: After we excluded patients managed either nonoperatively or with definitive endovascular repair, there were 293 patients without connective tissue disease who underwent either limited root repair or aortic root replacement. There was no difference in weighted perioperative mortality, odds ratio 0.89 (95% confidence interval [CI], 0.44-1.76, P = .7), and there was no difference in weighted survival, hazard ratio 1.12 (95% CI, 0.54-2.31, P = .8). Risk of reoperation was greater in limited root repair (11.8%, 95% CI, 0.0%-23.8%) than for root replacement (0%), P < .001. CONCLUSIONS: Limited root repair was associated with increased risk of late reoperation after repair of acute type A aortic dissection. Surgeons with adequate experience may consider aortic root replacement in well-selected patients. However, given good outcomes after limited root repair, surgeons should not feel compelled to perform this more-complex operation. PMID- 29042101 TI - Machine-learning phenotypic classification of bicuspid aortopathy. AB - BACKGROUND: Bicuspid aortic valves (BAV) are associated with incompletely characterized aortopathy. Our objectives were to identify distinct patterns of aortopathy using machine-learning methods and characterize their association with valve morphology and patient characteristics. METHODS: We analyzed preoperative 3 dimensional computed tomography reconstructions for 656 patients with BAV undergoing ascending aorta surgery between January 2002 and January 2014. Unsupervised partitioning around medoids was used to cluster aortic dimensions. Group differences were identified using polytomous random forest analysis. RESULTS: Three distinct aneurysm phenotypes were identified: root (n = 83; 13%), with predominant dilatation at sinuses of Valsalva; ascending (n = 364; 55%), with supracoronary enlargement rarely extending past the brachiocephalic artery; and arch (n = 209; 32%), with aortic arch dilatation. The arch phenotype had the greatest association with right-noncoronary cusp fusion: 29%, versus 13% for ascending and 15% for root phenotypes (P < .0001). Severe valve regurgitation was most prevalent in root phenotype (57%), followed by ascending (34%) and arch phenotypes (25%; P < .0001). Aortic stenosis was most prevalent in arch phenotype (62%), followed by ascending (50%) and root phenotypes (28%; P < .0001). Patient age increased as the extent of aneurysm became more distal (root, 49 years; ascending, 53 years; arch, 57 years; P < .0001), and root phenotype was associated with greater male predominance compared with ascending and arch phenotypes (94%, 76%, and 70%, respectively; P < .0001). Phenotypes were visually recognizable with 94% accuracy. CONCLUSIONS: Three distinct phenotypes of bicuspid valve-associated aortopathy were identified using machine-learning methodology. Patient characteristics and valvular dysfunction vary by phenotype, suggesting that the location of aortic pathology may be related to the underlying pathophysiology of this disease. PMID- 29042102 TI - You can't always get what you want. PMID- 29042103 TI - Assembling the puzzle of polymorphism. PMID- 29042104 TI - Extending the perspective on left ventricular assist device pump thrombosis to left ventricular assist device system thrombosis. PMID- 29042105 TI - Total mercury flux and offshore transport via submarine groundwater discharge and coal-fired power plant in the Jiulong River estuary, China. AB - A mass balance of total mercury (HgT, dissolved+particulate) is constructed for China's Jiulong River estuary based on measured HgT concentrations in the surface water, sediment, porewater, and groundwater for May, August, and November 2009, combined with data from the literature. The HgT mass budget results show that the dominant source (39-55%) is desulfurized seawater discharged from the Songyu coal fired power plant. Submarine groundwater discharge (SGD)-derived HgT flux into the estuary is equivalent to 8-58% of the HgT input from the Jiulong River, which is remarkable when compared with SGD-derived HgT fluxes reported in coastal systems worldwide. Hence, SGD is a significant pathway for the transport of HgT into the Jiulong River estuary. The primary HgT sinks is export to the Taiwan Strait (53-88%), which has important environmental implications on the Hg cycling and marine ecosystems in marginal seas. PMID- 29042106 TI - Seasonal variability of picophytoplankton under contrasting environments in northern Tunisian coasts, southwestern Mediterranean Sea. AB - We investigated at the single cell level during 16months (June 2012 to September 2013) the temporal distribution of picophytoplankton (picoeukaryotes, Synechococcus and Prochlorococcus) communities in two contrasted ecosystems: the Bay of Bizerte characterised by an oligotrophic regime typical of the Mediterranean Sea and the Bizerte Lagoon that exhibits a mesotrophic/eutrophic state. We aimed at depicting seasonal variations and quantifying the relationships between the environmental factors and the structure and abundance of picophytoplankton communities. Results showed that picophytoplankton groups were able to grow under a wide range of environmental conditions varying seasonally, although their abundances and contributions to the total chlorophyll biomass significantly varied and showed importance in the Bay of Bizerte. Synechococcus was the most abundant group reaching 225*103cells.cm-3 in the Bay and 278*103cells.cm-3 in the lagoon. This group was present all over the year in both ecosystems. Structural equation model results pointed out a different configuration regarding the picophytoplankton environmental drivers. The complexity of the configuration, i.e. number of significant links within the system, decreased under enhanced eutrophication conditions. The less exposure to anthropogenic stress, i.e. in the Bay of Bizerte, highlight a larger role of nutrient and hydrological conditions on the seasonal variations of picophytoplankton, whereas a negative effect of eutrophication on picophytoplankton communities was unveiled in the Bizerte Lagoon. We stress that such influence may be exacerbated under expected scenarios of Mediterranean warming conditions and nutrient release in coastal ecosystems. PMID- 29042107 TI - Amount, composition, and spatial distribution of floating macro litter along fixed trans-border transects in the Mediterranean basin. AB - Marine litter is a major source of pollution in the Mediterranean basin, but despite legislative requirements, scant information is available for the ongoing assessment of this threat. Using higher size classes as proxy for litter distribution, this study gave a synoptic estimation of the amount, composition, and distribution of floating macro-litter in the Mediterranean. The average amount of macro-litter was in a range of 2-5items/km2, with the highest in the Adriatic basin. Seasonal patterns were present in almost all study areas and were significant in the Ligurian Sea, Sardinian-Balearic basin, and Central Tyrrhenian Sea. Plastic accounted for >80% of litter in all areas and seasons, with the highest proportion in the Adriatic Sea, Ligurian Sea, and Sicilian-Sardinian Channels; in the Bonifacio Strait, Tyrrhenian Sea, and Sardinian-Balearic basin, litter composition was instead more diverse. Spatial analysis suggested an almost homogeneous distribution of litter without evident regular aggregation zones. PMID- 29042108 TI - Spatial distribution and environmental geochemistry of zinc metal in water and surficial bottom sediments of Lagoon Burullus, Egypt. AB - Lagoon Burullus is located in the North West quadrant of the Nile Delta. It receives drainage water through several drains around the lagoon. Understanding the mobility and bioavailability of zinc metal in bottom sediments of Lagoon Burullus is essential for the design of remediation processes and the institution of environmental recommendation for zinc pollution. Single extractions used to fractionate zinc into five fractions. The chemical analyses preceded using atomic absorption spectrometry after using the digestion technique. Zinc concentrates in the residual fraction (167.5MUg/g) followed by the organic (14.6MUg/g), exchangeable (3.2MUg/g), carbonate (2.4MUg/g) and then the Fe-Mn hydroxides (1MUg/g) fractions. The average content of zinc (189MUg/g) is about three fold the average earth's crust. Ecological pollution index show that the metal has a low-risk assessment to surrounding ecosystem. The anthropogenic activities considered as the main source of pollution. PMID- 29042109 TI - Construction of a scientific abstract. PMID- 29042110 TI - Measurement of thyroxine and its glucuronide in municipal wastewater and solids using weak anion exchange solid phase extraction and ultrahigh performance liquid chromatography-tandem mass spectrometry. AB - A solids extraction method, using sonication in combination with weak anion exchange solid phase extraction, was created to extract thyroxine (T4) and thyroxine-O-beta-d-glucuronide (T4-Glc) simultaneously from wastewaters and sludges, and to quantify these compounds via reversed-phase ultra-high performance liquid chromatography-tandem mass spectrometry. The method limits of quantification were all in the low ng/g (dry weight solids) range for both T4 and T4-Glc: 2.13 and 2.63ng/g respectively in primary wastewater, 4.3 and 28.3ng/g for primary suspended solids, for 1.1 and 3.7ng/g for return activated sludge. Precision for measurements of T4 and T4-Glc were 2.6 and 6.5% (intraday) and 9.6 and 5.7% (interday) respectively, while linearity was 0.9967 and 0.9943 respectively. Overall recoveries for T4 and T4-Glc in primary suspended solids were 94% and 95%, and 86 and 101% in primary wastewater, respectively. Extraction efficiency tests using primary sludge determined that one methanol aliquot was sufficient during the extraction process as opposed to 2 or 3 aliquots. Mass loadings at the North Main Wastewater Treatment Plant in Winnipeg, Canada showed 316%, 714%, and 714% greater T4-Glc than T4 associated with the suspended solids of the primary, secondary, and final effluent respectively, yet 765% more T4 than T4-Glc associated with the solids of the mixed liquor. Moreover, 26% of T4 and 49% of T4-Glc were associated with the suspended solids during the treatment process. This method demonstrates the need to assess accurately both metabolite conjugates of contaminants of emerging concern, as well as the sorbed levels of particle-reactive analytes such as T4 in the aquatic environment. PMID- 29042111 TI - Screening for 16-O-methylcafestol in roasted coffee by high-performance thin layer chromatography-fluorescence detection - Determination of Coffea canephora admixtures to Coffea arabica. AB - 16-O-Methylcafestol (16-OMC), the characteristic diterpene exclusively present in Coffea canephora, is an excellent marker for Coffea canephora admixtures to Coffea arabica. Here we show a straightforward, selective and sensitive screening method for the determination of 16-OMC in roasted coffee by high-performance thin layer chromatography with fluorescence detection (HPTLC-FLD). As internal standard, Sudan IV was used, and a direct saponification with 10% ethanolic potassium hydroxide solution was followed by solid supported liquid extraction with petroleum ether. 16-OMC was selectively derivatized with 2-naphthoyl chloride and analyzed by HPTLC-FLD on silica gel plates with cyclohexane/tert butyl methyl ether/formic acid (86:14:2, v/v/v) as the mobile phase. The enhanced fluorescence was scanned at UV 244/>320nm. Limits of detection and quantitation of 5 and 14mg 16-OMC/kg coffee allowed the determination of Coffea canephora admixtures to Coffea arabica below 1%. Recoveries for blends of Coffea arabica with Coffea canephora were close to 100%. PMID- 29042112 TI - Micro-solid phase extraction of benzene, toluene, ethylbenzene and xylenes from aqueous solutions using water-insoluble beta-cyclodextrin polymer as sorbent. AB - Water-insoluble beta-cyclodextrin polymer was synthesized by chemical cross linking using epichlorohydrin (EPI) as a cross-linker agent. The produced water insoluble polymer was used as a sorbent for the micro-solid phase extraction (MU SPE) of benzene, toluene, ethylbenzene and xylenes (BTEX) from water samples. The MU-SPE device consisted of a sealed tea bag envelope containing 15mg of sorbent. For the evaluation of the extraction efficiency, parameters such as extraction and desorption time, desorption solvent and salt concentration were investigated. At an extraction time of 30min in the course of the extraction process, analytes were extracted from a 10mL aqueous sample solution. The analytes were desorbed by ultrasonication in 200MUL of acetonitrile for 20min. Analysis of the analytes was done by a gas chromatography-flame ionization detector (GC-FID) system. The enrichment factor (EF) was found to be in the range 23.0-45.4 (EFmax=50.0). The method provided linearity ranges of between 0.5 and 500.0ng/mL (depending on the analytes), with good coefficients of determination (r2) ranging between 0.997 and 0.999 under optimized conditions. Detection limits for BTEX were in the range of between 0.15 and 0.60ng/mL, while corresponding recoveries were in the range of 46.0-90.0%. The relative standard deviation of the method for the analytes at 100.0ng/mL concentration level ranged from 5.5 to 11.2% (n=5). The proposed method was concluded to be a cost effective and environmentally-friendly extraction technique with ease of operation and minimal usage of organic solvent. PMID- 29042113 TI - Extension of Golay plate height equation for open-tubular columns. AB - Golay plate height equation with its B-term equal to 2Dm/u (Dm is molecular diffusivity of a solute in the carrier gas and u is the gas velocity) has been developed for WCOT (wall-coated open-tubular) GC columns with liquid stationary phases. In a more general case of OTC (open tubular columns) such as the PLOT (porous layer open-tubular) columns and others, the B-term is 2(Dm+kDS)/u (DS and k are the solute net diffusivity in the stationary zone and the retention factor, respectively) which can be substantially larger than 2Dm/u. A simple proof is provided together with other adjustments in Golay equation, and its interpretation. PMID- 29042114 TI - Extending the service life of existing dental restorations with esthetic and functional limitations. AB - Adhesive cementation is a useful procedure not only for cementing restorations onto teeth but also for attaching new ceramic restorations to existing restorations to improve their esthetics and/or function. This clinical report presents a technique for modifying an existing nonsatisfactory implant-supported fixed dental prosthesis by means of adhesively cemented veneers and onlays bonded to the pre-existing metal-ceramic surface with resin cement. This modification may avoid the replacement of the fixed dental prosthesis, reducing both treatment costs and time while fulfilling the patient's demands. PMID- 29042115 TI - Effect of thickness and surface modifications on flexural strength of monolithic zirconia. AB - STATEMENT OF PROBLEM: A recommended minimum thickness for monolithic zirconia restorations has not been reported. Assessing a proper thickness that has the necessary load-bearing capacity but also conserves dental hard tissues is essential. PURPOSE: The purpose of this in vitro study was to evaluate the effect of thickness and surface modifications on monolithic zirconia after simulated masticatory stresses. MATERIAL AND METHODS: Monolithic zirconia disks (10 mm in diameter) were fabricated with 1.3 mm and 0.8 mm thicknesses. For each thickness, 21 disks were fabricated. The specimens of each group were further divided into 3 subgroups (n=7) according to the surface treatments applied: untreated (control), airborne-particle abrasion with 50-MUm Al2O3 particles at a pressure of 400 kPa at 10 mm, and grinding with a diamond rotary instrument followed by polishing. The biaxial flexure strength was determined by using a piston-on-3-balls technique in a universal testing machine. Flexural loading was applied with a 1.4 mm diameter steel cylinder, centered on the disk, at a crosshead speed of 0.5 mm/min until fracture occurred. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses were performed. The data were statistically analyzed with 2-way ANOVA, Tamhane T2, 1-way ANOVA, and Student t tests (alpha=.05). RESULTS: The 1.3-mm specimens had significantly higher flexural strength than the 0.8-mm specimens (P<.05). Airborne-particle abrasion significantly increased the flexural strength (P<.05). Grinding and polishing did not affect the flexural strength of the specimens (P>.05). CONCLUSIONS: The mean flexural strength of 0.8 mm and 1.3-mm thick monolithic zirconia was greater than reported masticatory forces. Airborne-particle abrasion increased the flexural strength of monolithic zirconia. Grinding did not affect flexural strength if subsequently polished. PMID- 29042116 TI - Marginal discrepancy dimensions of single unit metal crowns fabricated by using CAD-CAM-milled acrylate resin polymer blocks or a conventional waxing technique. AB - STATEMENT OF PROBLEM: Because crowns with open margins are a well-known problem and can lead to complications, it is important to assess the accuracy of margins resulting from the use of a new technique. Currently, data regarding the marginal fit of computer-aided design and computer-aided manufacturing (CAD-CAM) technology to fabricate a complete gold crown (CGC) from a castable acrylate resin polymer block are lacking. PURPOSE: The purpose of this in vitro study was to compare marginal discrepancy widths of CGCs fabricated by using either conventional hand waxing or acrylate resin polymer blocks generated by using CAD CAM technology. MATERIAL AND METHODS: A plastic model of a first mandibular molar was prepared by using a 1-mm, rounded chamfer margin on the entire circumference of the tooth. The master die was duplicated 30 times, and 15 wax patterns were fabricated by using a manual waxing technique, and 15 were fabricated by using CAD-CAM technology. All patterns were invested and cast, and resulting CGCs were cemented on their respective die by using resin-modified glass ionomer cement. The specimens were then embedded in acrylic resin and sectioned buccolingually. The buccal and lingual marginal discrepancies of each sectioned portion were measured by using microscopy at *50 magnification. Data were subjected to repeated measures 2-way ANOVA, by using the Tukey post hoc pairwise comparison test (alpha=.05). RESULTS: The factor of "technique" had no significant influence on marginal discrepancy measurement (P=.431), but a significant effect of "margin location" (P=.019) was noted. The confounding combination of factors was found to be significantly lower marginal discrepancy dimensions of the lingual margin discrepancy than on the buccal side by using CAD-CAM technology. CONCLUSIONS: The marginal discrepancy of CAD-CAM acrylate resin crowns was not significantly different from those made with a conventional manual method; however, lingual margin discrepancies present from CAD-CAM-prepared crowns were significantly less than those measured on the respective buccal surface. PMID- 29042117 TI - Restoring masticatory function in a patient with severe microstomia using rapid prototyped mesh and a custom-made hinge and swing-lock prosthesis. AB - This clinical report describes the use of rapid prototyped mesh in a complete swing-lock prosthesis to restore masticatory function in an edentulous patient with severe microstomia and perioral scar tissue after an industrial hot tar accident. PMID- 29042118 TI - The early development of the normative mind. AB - Normativity is pervasive in everyday human social interactions and perhaps even constitutive of human forms of group and societal living. During the past decade, there has been increased interest in the ontogeny of normativity and the role that norms play in early social reasoning and behavior. Given the ubiquity of normativity, it is vital to investigate the development of children's normative understanding and behavior in a variety of different contexts, ranging from prosocial behavior to rational action or from linguistic competencies to cultural norms and values. Hence, in this special issue on the early development of the normative mind, researchers from different theoretical traditions have employed a number of different methods (e.g., third-party norm enforcement, judgment and reasoning, social behavior) to address different, yet related, research questions about the ontogeny of normativity. Here, we introduce the reader to the current debate and point to important research questions for the field. PMID- 29042119 TI - Walking Forward: A narrative from South Dakota. PMID- 29042120 TI - Pilot study on the impact of F18-labeled thymidine PET/CT on gross tumor volume identification and definition for pancreatic cancer. AB - PURPOSE: Accurate target definition for radiation therapy planning in localized pancreatic cancer is critical, particularly when using strategies that omit elective coverage. Standard imaging modalities such as computed tomography (CT), magnetic resonance imaging, and endoscopic ultrasound have limited concordance with pathologic evaluation. Biologic imaging with [F18]-fluorodeoxyglucose (FDG) positron emission tomography (PET) can also be difficult to interpret because increased activity is indicative of increased glucose metabolism, rather than cellular proliferation. [F18]-3'-deoxy-3'-fluorothymidine labeled thymidine (FLT) is a proliferative marker which exploits the expression of pyrimidine metabolizing enzymes. We evaluate the impact of FLT-PET on pancreatic target definition for radiation planning. METHODS AND MATERIALS: Patients with biopsy proven, newly diagnosed, untreated pancreatic adenocarcinoma were enrolled on an institutional review board-approved prospective study. Patients were injected with FLT and scanned 20 to 30 minutes later. Two physicians (referred to as observer 1 and observer 2) independently contoured the gross tumor volume (GTV) and involved nodes on CT scan only and then again with the assistance of coregistered FLT-PET. Conformality index (CI), the ratio of the volumes of intersection and union, was used as the metric for volume comparison (where CI = 0 represents no overlap and CI = 1 represents perfect overlap). RESULTS: Nine patients were enrolled in this study. FLT-avidity was discerned in 8 of 9 patients. Average CT-GTV volume for observers 1 and 2 was 38.1 and 26.5 mL, respectively. Average FLT-GTV volume for observers 1 and 2 was 39.1 and 25.0 mL, respectively. For the 8 patients with FLT-avid tumors, addition of FLT data improved concordance of GTV definition between physicians in 6 of 8 tumors. Average CI for interobserver CT-GTV was 0.325. Addition of FLT-PET information improved the average CI to 0.400. CONCLUSIONS: FLT-PET improves interobserver concordance in GTV definition. Further studies will focus on verification of these findings, pathologic verification of the FLT-PET signal, and optimization of the FLT-PET signal threshold for autosegmentation. PMID- 29042121 TI - Auditory sequential accumulation of spectral information. AB - In many listening situations, information about the spectral content of a target sound may be distributed over time, and estimating the target spectrum requires efficient sequential processing. Listeners' ability to estimate the spectrum of a random-frequency, six-tone complex was investigated and the spectral content of the complex was revealed using a sequence of bursts. Whether each of the six tones was presented within each burst was determined at random according to a presentation probability. In separate conditions, the presentation probabilities (p) ranged from 0.2 to 1, the total number of bursts varied from 1 to 16, and the inter-burst interval was either 0 or 200 ms. To evaluate the information acquired by the listener, the burst sequence was followed, after a 500-ms silent interval, by the six-tone complex acting as an informational masker and the listener was required to detect a pure-tone target presented simultaneously with the masker. Greater performance in this task indicates more accurate estimation of the spectrum of the complex by the listener. Evidence for integration of information across bursts was observed, and the integration process did not significantly depend on inter-burst interval. PMID- 29042122 TI - Physical activity after coronary revascularization. PMID- 29042123 TI - Wise decisions, good results. PMID- 29042124 TI - Cardiac biomarkers: on the track of reverse remodeling? PMID- 29042126 TI - Re: Magnetic Resonance Imaging Underestimation of Prostate Cancer Geometry: Use of Patient-specific Molds to Correlate Images with Whole-mount Pathology. PMID- 29042125 TI - Survival Outcomes of Men with Lymph Node-positive Prostate Cancer After Radical Prostatectomy: A Comparative Analysis of Different Postoperative Management Strategies. AB - BACKGROUND: Optimal management of patients with lymph node metastasis (LNM) after radical prostatectomy (RP) remains undefined. OBJECTIVE: We evaluated the association between three different management strategies and survival in prostate cancer with LNM after RP. DESIGN, SETTING, AND PARTICIPANTS: We analyzed data of 1338 patients with LNM after RP from three tertiary care centers. Three hundred and eighty-seven patients (28%) were observed, 676 (49%) received lifelong adjuvant androgen deprivation therapy (ADT), and 325 (23%) received adjuvant external beam radiation therapy (EBRT) and ADT. Three hundred and sixty eight men were followed for more than 10 yr. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Primary outcome measure was overall survival (OS). Secondary outcomes were cancer-specific survival (CSS) and other-cause mortality. Kaplan-Meier methods were used to visualize OS for the three treatment groups. Cox proportional hazards regression was utilized to compare OS and CSS among the three groups. RESULTS AND LIMITATIONS: ADT+EBRT was associated with better OS than ADT alone (hazard ratio [HR]: 0.46, 95% confidence interval [CI]: 0.32-0.66, p<0.0001) or observation (HR: 0.41, 95% CI: 0.27-0.64, p<0.0001). Higher-risk patients benefited more from ADT+EBRT than lower-risk patients. Ten-year mortality risk difference between ADT+EBRT, observation, or ADT alone ranged from 5% in low-risk patients to 40% in high-risk patients. Adjuvant ADT+EBRT was also associated with better CSS than observation or ADT alone (p<0.0001), ADT had better CSS compared to observation (HR: 0.64, 95% CI: 0.43-0.95, p=0.027). However, ADT was associated with an increased risk of other-cause mortality (HR: 3.05, 95% CI: 1.45-6.40, p=0.003) compared with observation, resulting in similar OS between ADT and observation (HR: 0.90, 95% CI: 0.65-1.25, p=0.5). While selection bias might remain, its effect would operate in the opposite direction to our findings. CONCLUSIONS: In men with LNM after RP, ADT+EBRT improved survival over either observation or adjuvant ADT alone. This survival benefit increases with higher-risk disease. PATIENT SUMMARY: Lymph node metastasis following radical prostatectomy is associated with poor survival outcomes. However, we found that adjuvant androgen deprivation therapy with external beam radiation therapy improved survival in these patients. PMID- 29042127 TI - Pinitol alleviates systemic inflammatory cytokines in human obesity by a mechanism involving unfolded protein response and sirtuin 1. AB - BACKGROUND & AIMS: It is known that pinitol acts as a mediator of the insulin signaling pathway, though little is known about its anti-inflammatory effect in human obesity. Therefore, this study aimed to evaluate the effect of pinitol on peripheral blood mononuclear cells (PBMCs) and visceral (VAT) and subcutaneous adipose tissues (SAT), focusing on the involvement of endoplasmic reticulum (ER) stress and sirtuin 1 (SIRT1). METHODS: In the intervention study, thirteen obese subjects consumed a pinitol-enriched beverage (PEB) for 12 weeks. In the ex vivo study, a biopsy of VAT and SAT was removed from thirty-four obese patients and incubated with D-pinitol for 48 h. RESULTS: The consumption of a PEB reduced circulating levels of IL6 and TNFalpha and increased SIRT1 protein expression in PBMCs. Ex vivo experiments showed a decline in gene expression and protein levels of IL6 and TNFalpha in SAT and a reduction in ER stress parameters (ATF6 and CHOP), while VAT markers remained unaltered. Differential gene expression profiles revealed an up-regulation of SIRT1 and insulin-signaling pathways in SAT with respect to VAT. CONCLUSIONS: Our results suggests that pinitol down regulates the inflammatory pathway which may lead to novel treatment options for obesity and its metabolic disorders. PMID- 29042129 TI - Epigenetic Pathways Offer Targets for Ovarian Cancer Treatment. PMID- 29042128 TI - Impact of blood pressure, cholesterol and glucose in the association between adiposity measures and coronary heart disease and stroke among Iranian population. AB - BACKGROUND & AIMS: To determine the association of body mass index (BMI) and central adiposity measures with coronary heart disease (CHD)/stroke, and to quantify the impact of blood pressure, cholesterol and glucose as metabolic mediators on these associations. METHODS: The study population included 4631 Iranian participants (males = 2066) aged >=40 years. Cox proportional hazard model was used to estimate the hazard ratio (HR) of BMI and central adiposity measures, using continuous and categorical variables, on CHD/stroke, with and without adjustment for three metabolic mediators, to calculate the attenuation of excess risk after adjustment for mediators. RESULTS: During a median follow-up of 12.1 years, 606 and 132 subjects experienced incident CHD and stroke, respectively. In the sex and confounders adjusted model, overweight and obesity were associated with increased risk for CHD (HR: 1.56; 95% CI: 1.26-1.92) and [1.53 (1.21-1.94)], respectively; however, after further adjustment for all the mediators, the result was significant only for overweight status [1.29 (1.05 1.59)]. Considering stroke, a significant risk of 70% (1.05-2.72) was found only among obese population. The percentage of risk mediated by three mediators among obese population was 75.47% and 75.71% for CHD and stroke, respectively. Blood pressure was the most important mediator of obesity, accounting for at least 50% of the excess risk for CHD and 60% for stroke. Considering central obesity measures, in the presences of all mediators, a significant risk for CHD was demonstrated; regarding stroke events, the risk was marginally significant for waist to height [1.02 (0.99-1.05)] and waist to hip ratios [1.02 (1.00-1.05)]. CONCLUSIONS: Overweight and obesity for CHD and, obesity for stroke were associated with increased risk; the negative effect of obesity was potentially ameloriated about 70% after adjustment for mediators. However, overweight status and central adiposity highlighted significant risk that did not decrease after controlling for traditional risk factors. PMID- 29042130 TI - A decay of the adaptive capacity of the unfolded protein response exacerbates Alzheimer's disease. AB - Alterations in the buffering capacity of the proteostasis network are a salient feature of Alzheimer's disease, associated with the occurrence of chronic endoplasmic reticulum (ER) stress. To cope with ER stress, cells activate the unfolded protein response (UPR), a signal transduction pathway that enforces adaptive programs through the induction of transcription factors such as X-box binding protein 1 (XBP1). A new study by Marcora et al used a fly model to study amyloid beta pathogenesis in the secretory pathway of neurons. Through genetic manipulation, authors identified a new role of XBP1s in the clearance of amyloid beta and the improvement of neuronal function. However, although the activation of the UPR signaling was sustained over time, the transcriptional upregulation of XBP1-target genes was attenuated during aging. This study suggests that aging has a negative impact in the ability of the UPR to manage proteostasis alterations in Alzheimer's disease. PMID- 29042131 TI - Expanding our perspectives on research in musculoskeletal science and practice. AB - INTRODUCTION: The quantity and quality of scientific research within physiotherapy has unquestionably grown and matured over the last few decades, especially since the "formal" onset of evidence-based physiotherapy in the 1990s. The urgent need to evaluate our practice for effectiveness and efficiency has been responded to with thought and respect to both scientific integrity and shop floor clinical needs. However, after thirty years or more of a professionally governed and strategic approach to research activity, it is now timely to reflect, review, and consider the next chapter in the relationship between scientific research and clinical practice. PURPOSE: This masterclass aims to develop a research vision for the future of physiotherapy. It is proposed that a crisis is evident within evidence-based physiotherapy, particular so given the assumed complexity and context-sensitivity of our clinical practice. This crisis period has highlighted fundamental limitations within the way research and practice are currently related. These limitations are presented and framed within the problematisation of empirical and philosophical concerns. As research becomes increasingly aligned to traditional scientific principles, examination of the real world context in which its outcomes are intended expose critical challenges for both research and clinical practice. IMPLICATIONS: A reconceptualisation of fundamental elements of scientific research may allow more meaningful relationships between research and clinical practice. A proposed research vision encourages scientific activity to embrace real-world complexity in a way that it is presently unable to. An enhanced person-centered, scientifically-informed world of effective musculoskeletal practice is envisaged. PMID- 29042133 TI - Determination of mitochondrial metabolic phenotype through investigation of the intrinsic inhibition of succinate dehydrogenase. AB - Many diseases are accompanied by systemic or organ metabolic abnormalities. Therefore, investigation of the roles of mitochondrial dysfunction in the pathogenesis of major diseases requires a methodology that reflects the characteristics of mitochondrial metabolism particular for the organ of origin. We provide evidence that for brain and heart mitochondria the intrinsic inhibition of succinate dehydrogenase (SDH) is a key mechanism for attenuation of mitochondrial respiration and energy production in response to the organ's energy needs. This mechanism also serves to minimize the production of reactive oxygen species when the organ is at rest. Changes in the organ's workloads are accompanied by changes in metabolites that are used by mitochondria as substrates and for modification of energy production at the SDH level. Measurement of the respiratory activity of mitochondria with various substrates and substrate mixtures and use of bovine serum albumin as an SDH inhibitor will be useful for evaluation of metabolic phenotype at the mitochondrial level. PMID- 29042132 TI - Low Very low-Density Lipoprotein Cholesterol but High Very low-Density Lipoprotein Receptor mRNA Expression in Peripheral White Blood Cells: An Atherogenic Phenotype for Atherosclerosis in a Community-Based Population. AB - Very low-density lipoprotein cholesterol (VLDL-C), via binding very low-density lipoprotein receptor (VLDLR), can induce the development of atherosclerosis. Besides monocytes, VLDLR expression is detected in various peripheral white blood cells (WBCs), yet its underlying role remains unclear. We thereby aimed to test the hypothesis that VLDLR in all types of peripheral WBCs may be involved in the association between VLDL-C and atherosclerosis. VLDLR mRNA expression in peripheral WBC and plasma VLDL-C levels were measured in 747 participants from a community-based study. Plaque prevalence and total plaque area (TPA) were used to evaluate the burden of carotid atherosclerosis. VLDL-C was positively associated with atherosclerosis risk, whereas this association was modified by VLDLR mRNA level. In participants with the lowest VLDL-C but the highest VLDLR mRNA expression, the risk for plaque prevalence unexpectedly was the highest. This association was also observed for TPA. Moreover, this association remained unchanged after adjusting for WBC or monocytes. Our findings described an atherogenic phenotype characterized by low VLDL-C but high VLDLR mRNA expression in peripheral WBCs, which suggested that VLDLR in all types of peripheral WBCs may be involved in lipid deposition, and VLDL-C and VLDLR may co-determine the development of atherosclerosis. PMID- 29042134 TI - The use of dynamic radiographs in trapeziometacarpal joint arthrodesis for accurate range of motion evaluation. AB - BACKGROUND: Increased motion at the scaphotrapeziotrapezoidal (STT) joint and compensatory hypermobility of metacarpophalangeal (MP) joint contribute to the total abduction and adduction motion of the thumb after trapeziometacarpal (TM) joint arthrodesis. However, there were no detailed studies to evaluate the contribution of motion of each joint towards total thumb mobility. METHODS: We conducted a comparative study on thumb joint motion in 56 hands who underwent TM joint arthrodesis against that of 56 hands in normal subjects. Dynamic radiographs were performed and the angles subtended by the first (M1) and second (M2) metacarpals were to measure radial abduction and adduction, and volar abduction and adduction. In addition, angles subtended by the thumb proximal phalanx (P1) and M1 in abduction and adduction were measured to evaluate the hypermobility of the MP joint. RESULTS: The average total arcs of M1M2 motion in normal subjects in radial and volar abduction-adduction planes were 24 degrees and 35 degrees respectively. The arthrodesis group averaged 9 degrees of motion in the radial abduction and adduction plane and 8 degrees in the volar abduction and adduction plane. P1M1 volar adduction angle was significantly larger in the arthrodesis group, suggesting that the arthrodesis group had larger compensatory motion of the MP joint in volar adduction compared to normal subjects. CONCLUSIONS: These findings on the amount of hypermobility of MP joint after TM joint arthrodesis are valuable information for optimal postoperative rehabilitation protocol. To achieve good range of motion of thumb abduction and adduction following TM joint arthrodesis, emphasis must be placed in obtaining maximum potential motion of STT joint rather than hypermobility of MP joint. PMID- 29042135 TI - Linkages between the spatial toxicity of sediments and sediment dynamics in the Yangtze River Estuary and neighboring East China Sea. AB - Anthropogenic activities are driving an increase in sediment contamination in coastal areas. This poses significant challenges for the management of estuarine ecosystems and their adjacent seas worldwide. However, few studies have been conducted on how dynamic mechanisms affect the sediment toxicity in the estuarine environment. This study was designed to investigate the linkages between sediment toxicity and hydrodynamics in the Yangtze River Estuary (YRE) area. High sediment toxicity was found in the Yangtze River mouth (Region I), the depocenter of the Yangtze River Delta (Region II), and the southeastern area of the adjacent sea (Region III), while low sediment toxicity was found in the northeastern offshore region (Region IV). A spatial comparison analysis and regression model indicated that the distributed pattern of sediment toxicity was likely related to hydrodynamics and circumfluence in the East China Sea (ECS) shelf. Specifically, high sediment toxicity in Region I may be affected by the Yangtze River Pump (YRP) and the low hydrodynamics there, and high toxicity in Region II can be influenced by the low sediment dynamics and fine sediment in the depocenter. The high sediment toxicity in Region III might be related to the combination of the YRP and Taiwan Warm Current, while the low toxicity in Region IV may be influenced by the local coarse-grained relict sand with strong sediment dynamics there. The present research results further suggest that it is necessary to link hydrodynamics and the spatial behavior of sediment and sediment-derived pollutants when assessing the pollution status of estuarine environments, especially for those mega-estuaries and their neighboring ocean environments with complex waves, tides and ocean currents. PMID- 29042136 TI - Mercury bioaccumulation in bats reflects dietary connectivity to aquatic food webs. AB - Mercury (Hg) is a persistent and widespread heavy metal with neurotoxic effects in wildlife. While bioaccumulation of Hg has historically been studied in aquatic food webs, terrestrial consumers can become contaminated with Hg when they feed on aquatic organisms (e.g., emergent aquatic insects, fish, and amphibians). However, the extent to which dietary connectivity to aquatic ecosystems can explain patterns of Hg bioaccumulation in terrestrial consumers has not been well studied. Bats (Order: Chiroptera) can serve as a model system for illuminating the trophic transfer of Hg given their high dietary diversity and foraging links to both aquatic and terrestrial food webs. Here we quantitatively characterize the dietary correlates of long-term exposure to Hg across a diverse local assemblage of bats in Belize and more globally across bat species from around the world with a comparative analysis of hair samples. Our data demonstrate considerable interspecific variation in hair total Hg concentrations in bats that span three orders of magnitude across species, ranging from 0.04 mg/kg in frugivorous bats (Artibeus spp.) to 145.27 mg/kg in the piscivorous Noctilio leporinus. Hg concentrations showed strong phylogenetic signal and were best explained by dietary connectivity of bat species to aquatic food webs. Our results highlight that phylogeny can be predictive of Hg concentrations through similarity in diet and how interspecific variation in feeding strategies influences chronic exposure to Hg and enables movement of contaminants from aquatic to terrestrial ecosystems. PMID- 29042137 TI - Occurrence and indicators of pharmaceuticals in Chinese streams: A nationwide study. AB - Pharmaceutically active compounds (PhACs) are excreted by humans and animals and released into the aquatic environment through wastewater, which can have potential negative impacts on ecological systems. To conduct a nationwide investigation of the occurrence of PhACs in water resources in China, an analytical procedure based on solid-phase extraction (SPE) and LC-MS/MS was used to measure 45 PhACs in surface water samples from a network of 29 rivers across 31 provinces in China in 2014 and 2015. PhACs were prevalent in all sampled streams. The concentrations of commonly detected PhACs were comparable to those detected in other countries. High total concentrations (mean > 1 MUg L-1) of all tested PhACs were primarily detected in areas under extreme water stress, specifically northern and eastern coastal areas. Source apportionment based on the profiles of the target compounds found that 54% of the PhACs in China originated from freshly discharged untreated sewage. Metformin (MET) and its biodegradation product, guanylurea (GUL), were used as a pair of indicators to predict PhAC contamination levels and differentiate between biotreated and unbiotreated wastewater. High MET/GUL can be used to indicate untreated wastewater, whereas low MET/GUL values are a strong indicator of treated wastewater. Furthermore, wastewater biotreatment ratios were calculated. We estimated that the biotreatment ratios of most of the provinces in China were less than 50%. We conclude that more attention should be paid to untreated sewage water, especially water in rural areas rather than the existing concentration on urban sewage treatment-oriented management. PMID- 29042138 TI - Managing the excessive proliferation of glycogen accumulating organisms in industrial activated sludge by nitrogen supplementation: A FISH-NanoSIMS approach. AB - Defluviicoccus vanus-related glycogen accumulating organisms (GAO) regularly proliferate in industrial wastewater treatment plants handling high carbon but nitrogen deficient wastes. When GAO dominate, they are associated with poor performance, characterised by slow settling biomass and turbid effluents. Although their ecophysiology has been studied thoroughly in domestic waste treatment plants, little attention has been paid to them in aerobic industrial systems. In this study, the effect of nitrogen addition on GAO carbon metabolism was investigated during an 8h cycle. Activated sludge dominated by GAO from a winery wastewater sequencing batch reactor was incubated under different carbon to nitrogen (COD:N) ratios (100:1, 60:1 and 20:1) using 13C - acetate and 15N - urea. GAO cell assimilation was quantified using FISH-NanoSIMS. The activated sludge community was assessed by 16S rRNA gene profiling, DNA and storage polymer production. Carbon and nitrogen quantification at the cellular level by NanoSIMS revealed that low (COD:N of 100:1) or null nitrogen concentrations enhanced GAO carbon uptake. COD:N ratios of 60:1 and 20:1 reduced GAO carbon uptake and promoted whole microbial community DNA production. Nitrogen dosing at COD:N ratios of 60:1 or higher was demonstrated as feasible strategy for controlling the excessive GAO growth in high COD waste treatment plants. PMID- 29042139 TI - Predictors of functional recovery in first-episode psychosis: A systematic review and meta-analysis of longitudinal studies. AB - BACKGROUND: Three out of four first-episode psychosis (FEP) patients achieve clinical remission following treatment. Unfortunately, functional recovery lags behind symptomatic remission, and many individuals with FEP remain socially isolated with poor functional outcomes. AIMS: To systematically compile and analyse predictors of functional recovery in FEP. METHOD: Systematic review and meta-analysis of peer-reviewed, longitudinal studies reporting predictors of functioning, with a minimum 12-month follow-up and at least 80% of participants diagnosed with FEP. RESULTS: Out of 2205 citations, 274 articles were retrieved for detailed evaluation resulting in 50 eligible studies (N=6669). Sociodemographic, clinical, physical and neuroimaging variables had little impact on long-term functioning. Conversely duration of untreated psychosis (DUP), most cognitive variables, and concurrent remission of positive and negative symptoms were independently related to functional recovery. CONCLUSIONS: These findings strongly support the rationale for early intervention in FEP. Novel treatments targeting cognitive deficits may improve functional outcomes in FEP. PMID- 29042140 TI - Myeloid cells contribute indirectly to VEGF expression upon hypoxia via activation of Muller cells. AB - Anti-VEGF-directed therapies have been a milestone for treating retinal vascular diseases. Depletion of monocyte lineage cells suppresses pathological neovascularization in the oxygen-induced retinopathy mouse model. However, the question whether myeloid-derived VEGF-A expression is responsible for the pathogenesis in oxygen-induced retinopathy remained unknown. We analyzed LysMCre driven myeloid cell-specific VEGF-A knockout mice as well as mice with complete depletion of circulating macrophages through clodronate-liposome treatment in the oxygen-induced retinopathy model by immunohistochemistry, qPCR, and flow cytometry. Furthermore, we analyzed VEGF-A mRNA expression in MIO-M1 cells alone and in co-culture with BV-2 cells in vitro. The myeloid cell-specific VEGF-A knockout did not change relative retinal VEGF-A mRNA levels, the relative avascular area or macrophage/granulocyte numbers in oxygen-induced retinopathy and under normoxic conditions. We observed an insignificantly attenuated pathology in systemically clodronate-liposome treated knockouts but evident VEGF A expression in activated Muller cells on immunohistochemically stained sections. MIO-M1 cells had significantly higher expression levels of VEGF-A in co-culture with BV-2 cells compared to cultivating MIO-M1 cells alone. Our data show that myeloid-derived cells contribute to pathological neovascularization in oxygen induced retinopathy through activation of VEGF-A expression in Muller cells. PMID- 29042141 TI - Involvement of Bmi-1 gene in the development of gastrointestinal stromal tumor by regulating p16Ink4A/p14ARF gene expressions: An in vivo and in vitro study. AB - OBJECTIVE: This study was conducted in order to explore the role that Bmi-1 plays during the development of a gastrointestinal stromal tumor (GIST) by regulation of the p16Ink4A and p14ARF expressions. METHODS: Eighty-six patients diagnosed with GIST were selected to take part in this experiment. The Bmi-1 protein expressions in GIST and adjacent normal tissues were detected using immunohistochemistry and further analyzed by using photodensitometry. To monitor and track the progression of the GIST, a 3-year follow-up was conducted for all affected patients. After cell transfection, the GIST cells were assigned into the control group (without transfection), the negative control (NC) group (transfected with Bmi-1-Scramble plasmid), and the Bmi-1 shRNA group (transfected with the pcDNA3.1-Bmi-1 shRNA plasmid). Protein and mRNA expressions collected from Bmi-1, p16lnk4A, P14ARF, cyclin D1, and CDK4 were measured using both the RT qPCR and western blotting methods Cell senescence was assessed and obtained by using the beta-Galactosidase (beta-Gal) activity assay. The use of a Soft agar colony formation assay and CCK-8 assay were performed in order to detect the cell growth and subsequent proliferation. Cell invasion and migration were analyzed using the Transwell assay and scratch test. RESULTS: Bmi-1 in the GIST tissues was found to be significantly higher and the p16lnk4A and P14ARF expressions were lower than those in the adjacent normal tissues. Bmi-1 was negatively correlated with p16lnk4A and P14ARF expressions according to the correlation analysis. Bmi-1 expression was associated with the TNM stage, postoperative recurrence, metastasis, tumor size, and the 5-year survival rate. Area under ROC curve was calculated at 0.884, and sensitivity, specificity, and accuracy of Bmi-1 predicting the GIST were 67.44%, 97.67%, and 65.12%, respectively. Patients exhibiting a high Bmi-1 expression in the GIST tissues had lower survival rates than those with low Bmi-1 expression. In comparison with the control group, P14ARF, and p16lnk4A were up-regulated, while cyclinD 1 and CDK4 were down regulated, cell senescence was promoted, and cell proliferation, invasion, and migration also showed some regression in the Bmi-1 shRNA group. CONCLUSIONS: These collection of data indicated that the down-regulated Bmi-1 might inhibit the proliferation, invasion, and migration of GIST cells and can be subsequently linked to the incidence and developing a prognosis of GIST. PMID- 29042142 TI - Fat-brain connections: Adipocyte glucocorticoid control of stress and metabolism. AB - Glucocorticoids act via multiple mechanisms to mobilize energy for maintenance and restoration of homeostasis. In adipose tissue, glucocorticoids can promote lipolysis and facilitate adipocyte differentiation/growth, serving both energy mobilizing and restorative processes during negative energy balance. Recent data suggest that adipose-dependent feedback may also be involved in regulation of stress responses. Adipocyte glucocorticoid receptor (GR) deletion causes increased HPA axis stress reactivity, due to a loss of negative feedback signals into the CNS. The fat-to-brain signal may be mediated by neuronal mechanisms, release of adipokines or increased lipolysis. The ability of adipose GRs to inhibit psychogenic as well as metabolic stress responses suggests that (1) feedback regulation of the HPA axis occurs across multiple bodily compartments, and (2) fat tissue integrates psychogenic stress signals. These studies support a link between stress biology and energy metabolism, a connection that has clear relevance for numerous disease states and their comorbidities. PMID- 29042143 TI - The professional in the lead? PMID- 29042144 TI - A comparative surface topographical analysis of explanted total knee replacement prostheses: Oxidised zirconium vs cobalt chromium femoral components. AB - It has been proposed that an increased surface roughness of the femoral components of Total Knee Replacements (TKRs) may be a contributing factor to the accelerated wear of the polyethylene (PE) bearing and ultimately prosthesis failure. Oxidised Zirconium was introduced to the orthopaedic market in an attempt to reduce PE wear associated failures and increase the longevity of the prosthesis. In this study, non-contacting profilometry was used to measure the surface roughness of the femoral components of 6 retrieved TKRs (3 Oxidised Zirconium (OxZr) and 3 Cobalt Chromium alloy (CoCr) femoral components) and 2 as manufactured femoral components (1 OxZr and 1 CoCr). A semi-quantitative method was used to analyse the damage on the retrieved PE components. The Sa values for the retrieved OxZr femoral components (Sa = 0.093 um +/- 0.014) and for the retrieved CoCr femoral components (Sa = 0.065 um +/- 0.005) were significantly greater (p < .05) than the roughness values for the as-manufactured femoral components (OxZr Sa = 0.061 um +/- 0.004 and CoCr Sa = 0.042 um +/- 0.003). No significant difference was seen between the surface roughness parameters of the retrieved OxZr and retrieved CoCr femoral components. There was no difference between the PE component damage scores for the retrieved OxZr TKRs compared to the retrieved CoCr TKRs. These results agree with other studies that both OxZr and CoCr femoral components roughen during time in vivo but the lack of difference between the surface roughness measurements of the two materials is in contrast to previous topographical reports. Further analysis of retrieved OxZr TKRs is recommended so that a fuller appreciation of their benefits and limitations be obtained. PMID- 29042145 TI - Electronic-clinical evaluation exercise (e-CEX): A new patient-centered EHR use tool. AB - INTRODUCTION: Electronic Health Record (EHR) use can enhance or weaken patient provider communication. Despite EHR adoption, no validated tool exists to assess EHR communication skills. We aimed to develop and validate such a tool. METHODS: Electronic-Clinical Evaluation Exercise (e-CEX) is a 10-item-tool based on systematic literature review and pilot-testing. Second-year (MS2s) students participated in an EHR-use lecture and structured Clinical Examination (OSCE). Untrained third-year students (MS3s) participated in the same OSCE. OSCEs were scored with e-CEX compared to a standardized patient (SP) tool. Internal consistency, discriminant validity, and concurrent validity were analyzed. RESULTS: Three investigators used e-CEX to rate 70 videos (20 MS2, 50 MS3). Reliability testing indicated high internal consistency (Cronbach's alpha=0.89). MS2s scored significantly higher than untrained MS3s on e-CEX [e-CEX 55(10.7) vs. 44.9 (12.7), P=0.003], providing evidence of discriminant validity. e-CEX and SP score correlation was high (Pearson correlation=0.74, P<0.001), providing concurrent validity evidence. Item reduction suggested a three-item tool had similar explanatory power (R-squared=0.85 vs 0.86). CONCLUSION: e-CEX is a reliable, valid tool to assess medical student patient-centered EHR communication skills. PRACTICE IMPLICATIONS: While validation is needed with other healthcare providers, e-CEX may help improve provider behaviors and enhance patients' overall experience of EHR use in their care. PMID- 29042146 TI - Is patient behavior during consultation associated with shared decision-making? A study of patients' questions, cues and concerns in relation to observed shared decision-making in a cancer outpatient clinic. AB - OBJECTIVES: To explore how cancer patients actively participate in consultations by asking questions and expressing emotional cues/concerns and to what extent this is associated with physician shared decision making (SDM) behavior. METHODS: This observational study included audio recordings of 31 primary consultation with patients at the Oncology Outpatient Clinic at the University Hospital of North Norway. The content (topics) and frequency of health related questions from patients/caregivers were registered along with emotional cues and concerns (VR CoDES) and observed shared decision-making (OPTION). Patient reported outcomes were measured before and one week after the consultation. RESULTS: On average, 17 (SD 15) questions were asked, and 1.9 (SD 1.9) emotional cues and concerns were expressed by patients per consultation. The questions mainly pertained to treatment and practical issues. The mean OPTION score was 12 (SD 7.9) and was neither associated with questions nor emotional cues and concerns from patients. CONCLUSION: Although patients were active by asking questions, observed physician SDM behavior measured by OPTION was low and not associated with patient behavior during consultation. PRACTICE IMPLICATIONS: Further research on patients influence on physician SDM behavior is needed. PMID- 29042147 TI - How immunotherapies are targeting the glioblastoma immune environment. AB - The diagnosis of glioblastoma remains one of the most dismal in medical practice, with current standard care only providing a median survival of 14.6 months. The need for new therapies is desperately clear. Components of the tumour microenvironment are demonstrating growing importance in the field, given they allow the tumour to utilise pathways involved in autoimmune prevention, something that enables the tumour's establishment and growth. As with many different cancers, the search for a new standard has progressed to the design of immunotherapies, which aim to counteract the immune changes within this microenvironment. Serotherapy, adoptive lymphocyte transfer, peptide and dendritic cell vaccines and a range of other methods are currently under investigation, while intracranial infection has also been researched for its capacity to reverse glioblastoma mediated immunosuppression. Some of these new therapies have shown promise, but it is a long road ahead before their incorporation into glioblastoma standard therapy. PMID- 29042148 TI - Histopathology of 3 Tesla MRI-negative temporal lobe epilepsies. AB - INTRODUCTION: Histopathology of MRI-negative temporal lobe epilepsies (TLE) shows heterogeneous findings. The use of either 1.5 or 3 Tesla MRI for the selection of MRI-negative cases and use of older classification systems instead of the current ILAE classification system may account for this heterogeneity. We focus on histopathology of 3 Tesla MRI-negative TLE according to ILAE criteria and investigate potential correlation to seizure outcome 1 year postoperatively. MATERIALS AND METHODS: Twenty specimens (9 neocortical, 11 hippocampal) from eleven 3 Tesla MRI-negative patients with TLE were examined in two steps. Standard stains and immunohistochemical reactions as well as Palmini and Wyler criteria were used prospectively during the initial examination. Retrospectively, all specimens were re-examined and re-evaluated. Phospho-6 and calretinin stains and the ILAE criteria were used during the review examination. RESULTS: Initial examination revealed 7 focal cortical dysplasias (FCDs) Palmini type 1, two cases of cortical gliosis, 4 cases of hippocampal sclerosis (HS) Wyler grade 1 and seven cases of hippocampal gliosis. The review examination according to ILAE criteria revealed 4 FCDs type I and 5 mild malformations of cortical development. All hippocampal specimens showed "no HS/gliosis only" after the review examination. Histopathology showed no correlation to seizure outcome. DISCUSSION: This is the first histopathological study to include only 3 Tesla MRI-negative cases. The use of ILAE criteria lead to the diagnosis of "no HS/gliosis only" of all hippocampal specimens, a finding not in line with previously reported series. The spectrum of diagnoses within neocortical specimens showed accordingly more mild findings. PMID- 29042149 TI - EGSnrc calculation of activity calibration factors for the Vinten ionization chamber. AB - The National Physical Laboratory Vinten 671 chamber was selected as a proving ground for a new radionuclide source model in the EGSnrc software. The computational Vinten model is validated against measurements of radionuclide artifacts whose activities were determined by absolute methods. The response of the Vinten chamber is first calculated as a function of gamma energy, but more strikingly, an explicit simulation of radionuclide decay was implemented and now permits the direct determination of a calibration factor, including additional effects due to all decay paths of the radionuclide. The Monte Carlo and experimental calibration factors are found to agree at the percent level, in absolute terms. PMID- 29042150 TI - Paul Joyce and the infinite alleles model. AB - Paul Joyce's work touched on a variety of topics in population genetics-from mathematical models of idealized systems to working closely with biologists on experimental evolution and landscape genetics. I will focus on his earlier mathematical/statistical work that centered on the infinite alleles model. PMID- 29042151 TI - Which treatment modality for pediatric pilonidal sinus: Primary repair or secondary healing? AB - OBJECTIVE: To evaluate the outcome and characteristics of patients who were operated for sacrococcygeal pilonidal sinus (SPS) treatment using primary repair or secondary healing technique. METHODS: Forty-seven patients (female: 25, male: 22) diagnosed with pilonidal sinus operated between 2009 and 2015 were retrospectively analyzed. The cases were evaluated for age, gender, body mass index (BMI), surgical technique, hospital stay, recovery time and recurrence. Mainly two types of surgical techniques were applied: primary repair and secondary healing. RESULTS: Mean age of the patients was 15.6 (+/-1.2) years. Excision and primary repair was performed in 36, excision and secondary healing was in 11. There was no statistically significant difference between the groups regarding length of hospital stay and duration of postoperative pain (p > 0.05). There was a statistically significant difference between groups regarding recovery time (p < 0.05). Recurrence was detected in a total of 11 (23.4%) patients. CONCLUSION: We did not find any significant difference concerning length of hospitalization, duration of postoperative pain and recurrence rate. However we determined that the primary repair group recovery time is significantly shorter compared to our secondary healing group. Therefore we recommended primary repair in the treatment of primary repair PS in children. PMID- 29042152 TI - Crowdsourcing dermatology: DataDerm, big data analytics, and machine learning technology. PMID- 29042153 TI - Classification of cerebral palsy and potential role of video recording. PMID- 29042154 TI - A case-control study of skin conductance biofeedback on seizure frequency and emotion regulation in drug-resistant temporal lobe epilepsy. AB - This study investigates the physiological basis of effects of skin conductance biofeedback on anxiety disorders, depressive disorders and stress in drug resistant temporal lobe epilepsy (TLE). This method presents an interest in seizure reduction and improvement in psychiatric comorbidities frequently associated with TLE. Our goal was to better understand the impact of biofeedback on seizure control and on emotional regulation. Fifteen patients with TLE were treated with 12 skin conductance biofeedback sessions and compared with 15 control TLE patients on a waiting list. They were evaluated in terms of seizure frequency, clinical evaluations of anxiety and depression and skin conductance responses (SCR) to five emotions: fear, disgust, sadness, happiness and peacefulness induced by short films. Biofeedback training significantly reduced seizure frequency with a mean reduction of -47.42% in the biofeedback group, while the control group did not differ at the two time measures. A significant improvement was found for depression and trait-anxiety in the biofeedback group but not in the control group. There were no differences on SCR on any emotion after biofeedback treatment. A correlation was found between mean change in SCR over the biofeedback treatment and the reduction of seizure frequency, but not between SCR changes and scores on psychiatric comorbidities. These results show independent effect of biofeedback on mood and seizure control. Improvements in anxiety and depressive symptoms were not related to SCR, whereas improved seizure control was, suggesting differential mechanisms underlying these two phenomena. PMID- 29042155 TI - Seasonal omalizumab reduces allergen-specific immunoglobulin E levels in patients with Japanese cedar pollinosis and asthma. PMID- 29042156 TI - Head-turning asymmetry: A novel lateralization in rats predicts susceptibility to behavioral despair. AB - Behavioral markers of laterality reflecting underlying neurobiological asymmetries between the cerebral hemispheres are related to differential susceptibility to mood disorders. In the present study, we investigated the strength and consistency of a novel behavioral lateralization, head-turning asymmetry, and its relation to behavioral despair in adult female Wistar rats. Head-turning biases were determined in a test where water-deprived rats had to turn their head to right or left to gain access to a water dispenser. This procedure was administered 4 times over 8days. Four days after the head-turning test, rats were subjected to two forced swim tests separated by 24h to examine the relationship between head-turning asymmetry and behavioral despair. Rats were administered one more head-turning test session after the second swim test to determine whether behavioral despair induction altered head-turning direction preferences. Results revealed significant correlations among head-turning test sessions indicating head-turning direction preference as measured with our method is a consistent behavioral lateralization. Although most rats were strongly lateralized, there was no bias in either direction at the population level. Importantly, we found that while rats with a left head-turning bias showed a significant increase in the duration of immobility from the first to the second swim test, right-biased rats performed similarly in the two swim tests. Behavioral despair induction did not change head-turning direction preferences. The present findings show that head-turning asymmetries are predictive of mood disorders in rats and may serve as the basis to elucidate the mechanisms relating hemispheric asymmetries to depression in humans. PMID- 29042157 TI - Selective inhibition of distracting input. AB - We review a series of studies exploring distractor suppression. It is often assumed that preparatory distractor suppression is controlled via top-down mechanisms of attention akin to those that prepare brain areas for target enhancement. Here, we consider two alternative mechanisms: secondary inhibition and expectation suppression within a predictive coding framework. We draw on behavioural studies, evidence from neuroimaging and some animal studies. We conclude that there is very limited evidence for selective top-down control of preparatory inhibition. By contrast, we argue that distractor suppression often relies secondary inhibition of non-target items (relatively non-selective inhibition) and on statistical regularities of the environment, learned through direct experience. PMID- 29042158 TI - Predictive value of metacarpophalangeal stabilization tests for simulated ulnar nerve lesion measured by a sensor glove. AB - STUDY DESIGN: A within-subject research design was used in this study. The difference of the range of motion (ROM) with and without ulnar nerve block was analyzed. INTRODUCTION: For the clinical evaluation of the functional effects of ulnar nerve palsy at the hand the relevance of clinical tests is in discussion. PURPOSE OF THE STUDY: The aim of the study was to evaluate the predictive value of 2 clinical tests for a simulated ulnar nerve lesion by motion analysis with a sensor glove. METHODS: In 28 healthy subjects, dynamic measurements of the finger joints were performed by a sensor glove with and without ulnar nerve block at the wrist. In the 0 degrees metacarpophalangeal (MCP) stabilization test, the subjects were asked to stabilize the MCP joints actively in 0 degrees while moving the interphalangeal joints, whereas at the 90 degrees MCP stabilization test, the subjects stabilized the MCP joints actively in the 90 degrees position. RESULTS: In the 0 degrees MCP stabilization test, no remarkable changes of the ROM were found at the MCP joints; at the proximal interphalangeal joints 2-5, the ROM decreased with ulnar nerve block, significantly at the index, middle, and ring fingers (P < .05). In the 90 degrees MCP stabilization test, the average ROM of the MCP joints 2-5 significantly increased with ulnar nerve block (P < .05), whereas at the PIP joints, the average ROM decreased (P < .05). DISCUSSION: The 90 degrees MCP stabilization test had a high predictive value for the discrimination between healthy subjects and subjects with a simulated peripheral ulnar nerve lesion. CONCLUSIONS: The results could be relevant for the determination of the functional effect of ulnar nerve palsy and the quantification of clawing in hand rehabilitation. LEVEL OF EVIDENCE: II. PMID- 29042159 TI - Pulley injuries in rock climbers: Hand therapy clinical application. PMID- 29042160 TI - Recovery, age, and gender effects on hand dexterity after a distal radius fracture. A 1-year prospective cohort study. AB - STUDY DESIGN: A prospective cohort study. INTRODUCTION: Physical factors that predict hand dexterity and the recovery of hand dexterity after a distal radius fracture (DRF) have not yet been examined. PURPOSE OF THE STUDY: The first objective was to evaluate the recovery of hand dexterity comparing the injured and uninjured hands during the year after a DRF. The second objective was to determine the effect of age and sex on hand dexterity of the injured hand. METHODS: Hand dexterity was examined bilaterally for the manipulation of 3 different sized objects (small, medium, and large) using the NK hand dexterity test. The measurements took place at 3, 6, and 12 months after DRF. Generalized linear modeling was performed, with age and sex as covariates, to assess changes over time, and between sides. RESULTS: Overall, 242 patients with DRF (45 males and 197 females) with a mean age of 60.2 years with SD of 11.26, participated in the study. Statistical differences in hand dexterity were found between the injured and uninjured hands across all time intervals (P < .001). The effect size for the deficit between the injured and uninjured hands decreased across the time intervals and ranged from 0.19 to 0.38 for large objects, from 0.17 to 0.25 for medium objects, and from 0.11 to 0.32 for small objects. For each 1-year increase in age, hand dexterity scores were 0.3-0.4 seconds slower. Sex had much less effect, with annual increases of 0.1 seconds in hand dexterity scores. CONCLUSIONS: Scores on the NK dexterity test improved between 3 and 6 months and then worsened between 6 and 12 months; at no point did dexterity equal the uninjured side. Greater attention to measuring and treating dexterity may be needed to provide a complete recovery after DRF. Scores will be affected by age and sex. LEVEL OF EVIDENCE: Prognosis, 2a. PMID- 29042161 TI - Kinematic evaluation for impairment of skilled hand function in chemotherapy induced peripheral neuropathy. AB - INTRODUCTION: Chemotherapy-induced peripheral neuropathy (CIPN) usually affects both sensory and motor function of hands and feet, resulting in impaired skilled hand function (e.g., typing a keyboard). However, quantitative and objective evaluations for this condition have not been established. PURPOSE OF THE STUDY: We evaluated skilled hand function using a kinematic analysis and investigated relationships among hand kinematic function and the clinical sensory and motor features of CIPN. STUDY DESIGNS: Clinical measurement. METHODS: Twelve CIPN patients and 12 age-matched control participants were enrolled. We recorded their reach and grasp movements using a three-dimensional measurement system, and calculated the normalized jerk of these movements as quantitative indexes of skilled hand function. Additionally, we used the number of sequential hand grip release cycles in 10 seconds as an evaluation of clinical motor function. RESULTS: Our kinematic analyses revealed significant difference in normalized jerk of grasp movement (CIPN: 3.7 +/- 0.2, control: 3.4 +/- 0.1; P = .005), but this was not the case for reach movement (CIPN: 2.5 +/- 0.1, control: 2.5 +/- 0.2; P = .43), indicating that the distal part of the forearm is particularly affected in CIPN. Such disturbed grasp movement was directly correlated with poor scores on the hand grip-release test and the sensory tests. DISCUSSION: We revealed deficit impaired hand function objectively and quantitatively in CIPN patients using a kinematic analysis. Further, the hand grip test could represent such kinematic abnormality and could be useful for evaluating skilled hand function of CIPN patients. CONCLUSIONS: Our kinematic and clinical measurements objectively and quantitatively evaluate skilled hand function in individuals with CIPN in clinical settings. LEVEL OF EVIDENCE: Cross-sectional observational study. PMID- 29042162 TI - Pronation and supination analysis based on biomechanical signals from Parkinson's disease patients. AB - In this work, a fuzzy inference model to evaluate hands pronation/supination exercises during the MDS-UPDRS motor examination is proposed to analyze different extracted features from the bio-mechanical signals acquired from patients with Parkinson's disease (PD) in different stages of severity. Expert examiners perform visual assessments to evaluate several aspects of the disease. Some previous work on this subject does not contemplate the MDS-UPDRS guidelines. The method proposed in this work quantifies the biomechanical features examiners evaluate. The extracted characteristics are used as inputs of a fuzzy inference model to perform an assessment strictly attached to the MDS-UPDRS. The acquired signals are processed by techniques of digital signal processing and statistical analysis. The experiments were performed in collaboration with clinicians and patients from different PD associations and institutions. In total, 210 different measurements of patients with PD, plus 20 different measurements of healthy control subjects were performed. With objective values rated by several feature extraction procedures there is the possibility to track down the disease evolution in a patient, and to detect subtle changes in the patient's condition. PMID- 29042163 TI - A multilevel reuse system with source separation process for printing and dyeing wastewater treatment: A case study. AB - This paper proposes a new system of multilevel reuse with source separation in printing and dyeing wastewater (PDWW) treatment in order to dramatically improve the water reuse rate to 35%. By analysing the characteristics of the sources and concentrations of pollutants produced in different printing and dyeing processes, special, highly, and less contaminated wastewaters (SCW, HCW, and LCW, respectively) were collected and treated separately. Specially, a large quantity of LCW was sequentially reused at multiple levels to meet the water quality requirements for different production processes. Based on this concept, a multilevel reuse system with a source separation process was established in a typical printing and dyeing enterprise. The water reuse rate increased dramatically to 62%, and the reclaimed water was reused in different printing and dyeing processes based on the water quality. This study provides promising leads in water management for wastewater reclamation. PMID- 29042164 TI - Pediatrics Spanish Registry of Percutaneous Melody Pulmonary Valve Implantation in Patients Younger Than 18 Years. AB - INTRODUCTION AND OBJECTIVES: A decade has passed since the first Spanish percutaneous pulmonary Melody valve implant (PPVI) in March 2007. Our objective was to analyze its results in terms of valvular function and possible mid-term follow-up complications. METHODS: Spanish retrospective descriptive multicenter analysis of Melody PPVI in patients < 18 years from the first implant in March 2007 until January 1, 2016. RESULTS: Nine centers were recruited with a total of 81 PPVI in 77 pediatric patients, whose median age and weight were 13.3 years (interquartile range [IQR], 9.9-15.4) and 46kg (IQR, 27-63). The predominant cardiac malformation was tetralogy of Fallot (n = 27). Most of the valves were implanted on conduits, especially bovine xenografts (n = 31). The incidence of intraprocedure and acute complications was 6% and 8%, respectively (there were no periprocedural deaths). The median follow-up time was 2.4 years (IQR, 1.1-4.9). Infective endocarditis (IE) was diagnosed in 4 patients (5.6%), of which 3 required surgical valve explant. During follow-up, the EI-related mortality rate was 1.3%. At 5 years of follow-up, 80% +/- 6.9% and 83% +/- 6.1% of the patients were free from reintervention and pulmonary valve replacement. CONCLUSIONS: Melody PPVI was safe and effective in pediatric patients with good short- and mid term follow-up hemodynamic results. The incidence of IE during follow-up was relatively low but was still the main complication. PMID- 29042165 TI - Sustained Ventricular Tachycardia After Thoracic Traumatism in a Patient With Repaired Tetralogy of Fallot. PMID- 29042167 TI - Reply to Pang et al.: "Early detection of brain death using the Bispectral Index (BIS) in patients treated by extracorporeal cardiopulmonary resuscitation (E-CPR) for refractory cardiac arrest". PMID- 29042166 TI - Radiolabeling and preliminary biodistribution study of 99mTc-labeled antibody mimetic scaffold protein repebody for initial clearance properties. AB - Antibody-mimetic proteins are intensively being developed for biomedical applications including tumor imaging and therapy. Among them, repebody is a new class of protein that consists of highly diverse leucine-rich repeat (LRR) modules. Although all possible biomedical applications with repebody are ongoing, it's in vivo biodistribution and excretion pathway has not yet been explored. In this study, hexahistidine (His6)-tag bearing repebody (rEgH9) was labeled with [99mTc]-tricarbonyl, and biodistribution was performed following intravenous (I.V.) or intraperitoneal (I.P.) injection. Repebody protein was radiolabeled with high radiolabeling efficiency (>90%) and radiolabeled compound was more than 99% pure after purification. Biodistribution data indicates radiotracer has a rapid clearance from blood and excreted through the kidneys for intravenous (I.V.) injection, but comparatively slow clearance for an intraperitoneal (I.P.) injection. SPECT-CT images were found to be in agreement with biodistribution data, high activity was found inside kidneys. The observed result for rapid blood clearance and renal excretion of repebody (rEgH9) provide useful information for the further development of therapeutic strategy. PMID- 29042168 TI - Autonomous bone reposition around anatomical landmark for robot-assisted orthognathic surgery. AB - The purpose of this study was to develop a new method for enabling a robot to assist a surgeon in repositioning a bone segment to accurately transfer a preoperative virtual plan into the intraoperative phase in orthognathic surgery. We developed a robot system consisting of an arm with six degrees of freedom, a robot motion-controller, and a PC. An end-effector at the end of the robot arm transferred the movements of the robot arm to the patient's jawbone. The registration between the robot and CT image spaces was performed completely preoperatively, and the intraoperative registration could be finished using only position changes of the tracking tools at the robot end-effector and the patient's splint. The phantom's maxillomandibular complex (MMC) connected to the robot's end-effector was repositioned autonomously by the robot movements around an anatomical landmark of interest based on the tool center point (TCP) principle. The robot repositioned the MMC around the TCP of the incisor of the maxilla and the pogonion of the mandible following plans for real orthognathic patients. The accuracy of the robot's repositioning increased when an anatomical landmark for the TCP was close to the registration fiducials. In spite of this influence, we could increase the repositioning accuracy at the landmark by using the landmark itself as the TCP. With its ability to incorporate virtual planning using a CT image and autonomously execute the plan around an anatomical landmark of interest, the robot could help surgeons reposition bones more accurately and dexterously. PMID- 29042169 TI - Percutaneous Cryoablation of Renal Cell Carcinoma with Sinus Vein Involvement Based on Preprocedural Imaging. AB - PURPOSE: To assess feasibility, safety, and oncologic outcomes of cryoablation in treatment of renal cell carcinoma (RCC) with extension into adjacent renal sinus vein. MATERIALS AND METHODS: Review of an internally maintained renal ablation registry identified 7 patients (4 men and 3 women; median age 62 y; age range, 45 91 y) who underwent percutaneous cryoablation of RCC with imaging consistent with extension of tumor into an immediately adjacent renal sinus vein. Four of 7 (57%) patients had recurrent tumors following prior partial nephrectomy. Three of 7 patients (43%) had solitary kidneys. RESULTS: Median tumor size was 4.3 cm (range, 1.9-5.0 cm). Biopsy showed RCC in 6 of 7 patients. Technical success was achieved in 6 of 7 tumors (86%) There was a single Clavien grade 3 major complication. Median hospital stay was 1 night (range, 1-3 nights). Follow-up imaging performed in the 6 successfully treated patients at median 11 months (range, 2-101 months) showed no local tumor progression. In 2 patients with solitary kidneys, estimated glomerular filtration rate declined from 63 mL/min/1.73 m2 to 45 mL/min/1.73 m2 and 67 mL/min/1.73 m2 to 40 mL/min/1.73 m2 at 101 months and 12 months following treatment, respectively. Estimated glomerular filtration rate remained > 60 mL/min/1.73 m2 in the remaining patients. CONCLUSIONS: In this small select group of patients, percutaneous cryoablation afforded a safe and, based on early outcomes, effective means of providing local control of locally invasive RCC. Percutaneous cryoablation may obviate the need for nephrectomy in similar patients. PMID- 29042170 TI - Safety of CT-Guided Bone Marrow Biopsy in Thrombocytopenic Patients: A Retrospective Review. AB - PURPOSE: To test the hypothesis that computed tomography (CT)-guided bone marrow biopsy in patients with a platelet count between 20,000/uL and 50,000/uL is safe and that preprocedure platelet transfusion is unnecessary. MATERIALS AND METHODS: This single-center retrospective study included bone marrow biopsies performed between May 2009 and May 2016. The study population included 981 patients-age range, 15-93 years; average age, 57 years; 505 (51.5%) men; and 476 (48.5%) women. One hundred eighty-seven biopsies were performed in patients with a platelet count of 20,000-50,000/MUL; 33 were performed in patients with a platelet count of < 20,000/MUL. The primary endpoint was hemorrhagic complications, Society of Interventional Radiology (SIR) complication class C or above. The complication rates in thrombocytopenic patients were compared to patients with a platelet count of >= 50,000/uL. Ninety-five percent confidence intervals (CIs) for the complication rate in each group were also calculated. RESULTS: There were no SIR class C or above postprocedure bleeding-related complications, including interventions or transfusions. For patients with a platelet count of < 20,000/MUL and of 20,000-50,000/MUL, hemorrhagic complications rates were 0% (95% CI: 0-9.1%) and 0% (95% CI: 0-1.6%), respectively. CONCLUSIONS: CT-guided bone marrow biopsy is safe in thrombocytopenic patients, with a hemorrhagic complication rate below 1.6% for patients with a platelet count of 20,000-50,000/MUL. Routine preprocedure platelet transfusion may not be necessary for patients with a platelet count of 20,000-50,000/MUL. PMID- 29042171 TI - Development of a Computerized Adaptive Testing System of the Functional Assessment of Stroke. AB - OBJECTIVE: To develop a computerized adaptive testing system of the Functional Assessment of Stroke (CAT-FAS) to assess upper- and lower-extremity (UE/LE) motor function, postural control, and basic activities of daily living with optimal efficiency and without sacrificing psychometric properties in patients with stroke. DESIGN: Simulation study. SETTING: One rehabilitation unit in a medical center. PARTICIPANTS: Patients with subacute stroke (N=301; mean age, 67.3+/ 10.9; intracranial infarction, 74.5%). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The UE and LE subscales of the Fugl-Meyer Assessment, Postural Assessment Scale for Stroke Patients, and Barthel Index. RESULTS: The CAT-FAS adopting the optimal stopping rule (limited reliability increase of <.010) had good Rasch reliability across the 4 domains (.88-.93) and needed few items for the whole administration (8.5 items on average). The concurrent validity (CAT-FAS vs original tests, Pearson r=.91-.95) and responsiveness (standardized response mean, .65-.76) of the CAT-FAS were good in patients with stroke. CONCLUSIONS: We developed the CAT-FAS, and our results support that the CAT-FAS has sufficient efficiency, reliability, concurrent validity, and responsiveness in patients with stroke. The CAT-FAS can be used to simultaneously assess patients' functions of UE, LE, postural control, and basic activities of daily living using, on average, no more than 10 items; this efficiency is useful in reducing the assessment burdens for both clinicians and patients. PMID- 29042172 TI - Effect of Upper Limb Rehabilitation Compared to No Upper Limb Rehabilitation in Lung Transplant Recipients: A Randomized Controlled Trial. AB - OBJECTIVE: To investigate the effect of a supervised upper limb (UL) program (SULP) compared to no supervised UL program (NULP) after lung transplantation (LTx). DESIGN: Randomized controlled trial. SETTING: Physiotherapy gym. PARTICIPANTS: Participants (N=80; mean age, 56+/-11y; 37 [46%] men) were recruited after LTx. INTERVENTIONS: All participants underwent lower limb strength thrice weekly and endurance training. Participants randomized to SULP completed progressive UL strength training program using handheld weights and adjustable pulley equipment. MAIN OUTCOME MEASURES: Overall bodily pain was rated on the visual analog scale. Shoulder flexion and abduction muscle strength were measured on a hand held dynamometer. Health related quality of life was measured with Medical Outcomes Study 36-item Short Form health Survey and the Quick Dash. Measurements were made at baseline, 6 weeks, 12 weeks, and 6 months by blinded assessors. RESULTS: After 6 weeks of training, participants in the SULP (n=41) had less overall bodily pain on the visual analog scale than did participants in the NULP (n=36) (mean VAS bodily pain score, 2.1+/-1.3cm vs 3.8+/-1.7cm; P<.001) as well as greater UL strength than did participants in the NULP (mean peak force, 8.4+/-4.0Nm vs 6.7+/-2.8Nm; P=.037). At 12 weeks, participants in the SULP better quality of life related to bodily pain (76+/-17 vs 66+/-26; P=.05), but at 6 months there were no differences between the groups in any outcome measures. No serious adverse events were reported. CONCLUSIONS: UL rehabilitation results in short-term improvements in pain and muscle strength after LTx, but no longer-term effects were evident. PMID- 29042173 TI - Intraoperative anaphylaxis to bacitracin during scleral buckle surgery. PMID- 29042174 TI - Results of Upfront Therapy for Marginal Zone Lymphoma. AB - BACKGROUND: Marginal zone lymphomas (MZLs) are indolent disorders composed of 3 subtypes: extranodal marginal zone lymphoma (MALT), splenic marginal zone lymphoma (SMZL), and nodal marginal zone lymphoma (NMZL). Early-stage MALT is treated with radiotherapy or antibiotics, and advanced MALT and NMZL are managed with either watch and wait or chemotherapy. SMZLs are treated with splenectomy or rituximab. However, because these approaches have failed to cure patients with SMZL and NMZL, we have systematically used upfront chemotherapy for them, as well as for advanced MALT. We report the outcomes of this approach. PATIENTS AND METHODS: A total of 44 patients with MZL were identified from our database and divided into 2 groups. Group 1 (22 with early-stage MALT) patients received either radiotherapy (n = 17) or antibiotics with or without surgery (n = 5). Group 2 included 9 patients with advanced MALT, 9 with SMZL, and 4 with NMZL. Group 2 was treated with FND-R (fludarabine 25 mg/m2 on days 1 to 3, mitoxantrone 10 mg/m2 on day 1, dexamethasone 20 mg on days 1 to 5, and rituximab 375 mg/m2 on day 1; n = 14) or CHOP-R (cyclophosphamide 750 mg/m2 on day 1, doxorubicin 50 mg/m2 on day 1, vincristine 2 mg intravenous push on day 1, prednisone 100 mg/m2 orally on days 1 to 5, rituximab 375 mg/m2 on day 1; n = 8), followed by maintenance rituximab for 70%. RESULTS: All patients achieved complete remission, and only 2 patients in group 1 had developed a relapse at 70 and 75 months. Both relapses were stage I MALT that had initially been treated with radiotherapy. Both were salvaged with FND-R and remained free of disease at 27 and 39 months after the relapse. At 10 years, the failure-free survival for the 44 patients was 80% and the overall survival was 100%. None of the patients in group 2 developed a relapse. The long-term toxicities have been acceptable. CONCLUSIONS: The excellent responses using upfront chemotherapy for MZL suggests that this disorder is curable. Our results should be confirmed in a prospective trial. PMID- 29042176 TI - Effect of V-Y plasty on lip lengthening and treatment of gummy smile. AB - The aim of this study was to assess the effect of isolated V-Y plasty on lip lengthening and the treatment of gummy smile. An isolated V-Y plasty was performed on 14 patients with a gummy smile. In each case, measurements of upper lip length and gingival display were recorded from posed-smile photographs taken preoperatively and at 1, 3, and 6 months postoperatively. Gingival display decreased significantly and lip length increased significantly over all intervals investigated. Applying this technique after Le Fort I surgery may be beneficial; however, as with other injection or surgical lip lengthening methods, its stand alone application should be questioned. PMID- 29042175 TI - Calcitriol promotes proangiogenic molecules in keratinocytes in a diabetic foot ulcer model. AB - Foot ulceration is one of the most common and complex sequelae of diabetes mellitus, generally posing a therapeutic challenge due to poor healing responses and high rates of complications, including peripheral vascular disease, ischemia and infections. Calcitriol, the most active vitamin D metabolite, induces antimicrobial peptides production in keratinocytes from diabetic foot ulcers (DFU); however, little is known about its effects on angiogenic factors in this pathology. Herein we aimed at studying whether calcitriol induces angiogenic molecules in keratinocytes under normoxic and hypoxic conditions, and if these molecules are able to improve cell migration in vitro. Evaluation of DFU samples by immunohistochemistry showed increased VEGF and decreased angiogenin and HIF 1alpha expression compared to controls, suggesting an altered pattern of angiogenic factors in DFU. Interestingly, incubation of keratinocytes with calcitriol significantly upregulated VEGFA, HIF-1alpha and angiogenin gene expression, while the resulting cell culture media stimulated both endothelial cells and keratinocytes migration in an in vitro wound closure assay under a normoxic environment (p<0.05). Moreover, the culture media of calcitriol-treated keratinocytes stimulated cell migration in a similar extent as exogenous VEGF or EGF in endothelial and keratinocytes cells. These results suggest that the altered profile of angiogenic molecules in DFU might be improved by local or systemic treatment with calcitriol under normoxic conditions, which could probably be achieved with hyperbaric oxygen therapy. Given that calcitriol not only augments proangiogenic factors but also induces antimicrobial peptides expression, this hormone should be further investigated in clinical trials of DFU. PMID- 29042177 TI - Antibiotic exposure and interpersonal variance mask the effect of ivacaftor on respiratory microbiota composition. AB - BACKGROUND: G551D is a class III mutation of the cystic fibrosis transmembrane regulator (CFTR) that results in impaired chloride channel function in cystic fibrosis (CF). Ivacaftor, a CFTR-potentiating agent improves sweat chloride, weight, lung function, and pulmonary exacerbation rate in CF patients with G551D mutations, but its effect on the airway microbiome remains poorly characterised. METHODS: Twenty CF patients with at least one G551D mutation from a single centre were recruited to a 4month double-blind, placebo-controlled, crossover study of ivacaftor with 28days of active treatment. Sputum microbiota composition was assessed by 16S rRNA gene amplicon sequencing and quantitative PCR at five key time points, along with regular clinical review, respiratory function assessment, and peripheral blood testing. RESULTS: No significant difference in microbiota composition was observed in subjects following ivacaftor treatment or placebo (PERMANOVA P=0.95, square root ECV=-4.94, 9479 permutations). Microbiota composition variance was significantly greater between subjects, than within subjects over time (P<0.0001, Mann Whitney U test), and an additional within patient paired assessment of microbiota similarity was therefore performed. Again, change in microbiota composition was not significantly greater during treatment with ivacaftor compared to placebo (Wilcoxon test, P=0.51). A significant change in microbiota composition was however associated with any change in antibiotic exposure, regardless of whether ivacaftor or placebo was administered (P=0.006). In a small, subgroup analysis of subjects whose antibiotic exposure did not change within the study period, a significant reduction in total bacterial load was observed during treatment with ivacaftor (P=0.004, two-tailed paired Student's t-test). CONCLUSIONS: The short-term impact of ivacaftor therapy on sputum microbiota composition in patients with G551D mutations are modest compared to those resulting from antibiotic exposure, and may be masked by changes in antibiotic treatment regimen. PMID- 29042178 TI - Patterns of influenza vaccination coverage in the United States from 2009 to 2015. AB - BACKGROUND: Globally, influenza is a major cause of morbidity, hospitalization and mortality. Influenza vaccination has shown substantial protective effectiveness in the United States. METHODS: We investigated state-level patterns of coverage rates of seasonal and pandemic influenza vaccination, among the overall population (six months or older) in the U.S. and specifically among children (aged between 6 months and 17 years) and the elderly (aged 65 years or older), from 2009/10 to 2014/15, and associations with ecological factors. We obtained state-level influenza vaccination rates from national surveys, and state level socio-demographic and health data from a variety of sources. We employed a retrospective ecological study design, and used both linear models and linear mixed-effect models to determine the levels of ecological association of the state-level vaccinations rates with these factors, both with and without region as a factor for the three populations. RESULTS AND CONCLUSIONS: Health-care access has a robust, positive association with state-level vaccination rates across all populations and models. This highlights a potential population-level advantage of expanding health-care access. We also found that prevalence of asthma in adults is negatively associated with mean influenza vaccination rates in the elderly populations. PMID- 29042179 TI - Do we need neuroimaging to treat insomnia effectively? PMID- 29042180 TI - Idiopathic REM sleep behavior disorder in the elderly Spanish community: a primary care center study with a two-stage design using video-polysomnography. AB - OBJECTIVE: To examine the presence and characteristics of idiopathic REM sleep behavior disorder (IRBD) in a representative Caucasian sample from the elderly community of Lleida, Spain, attending primary care centers. METHODS: Participants were individuals aged 60 years or older who underwent routine visits in two primary care centers. They underwent a two-stage study; a validated screening single question for IRBD diagnosis (RBD1Q) followed by, in those who endorsed positive answer, clinical assessment by a neurologist plus video-polysomnography (V-PSG). RESULTS: Of 539 individuals (56.4% women, mean age 72.86 +/- 8.20 years), 28 (5.2%) endorsed positively the RBD1Q. Four of these 28 refused further assessments. Four of the 24 remaining subjects underwent clinical assessment but refused V-PSG. Of the 20 who underwent clinical assessment plus V-PSG, REM sleep was not recorded in four (20%, all four taking antidepressants). V-PSG ruled out RBD in 12 subjects who had obstructive sleep apnea (n = 9), periodic limb movement disorder in sleep (n = 2) and normal sleep (n = 1). IRBD was diagnosed in four individuals giving an estimated prevalence of 0.74% (95% CI = 0.29-1.89). They were three men and one woman between 74 and 82 years of age who never reported dream-enacting behaviors to their doctors because they thought they represented a normal phenomenon despite suffering sleep-related injuries. These patients had history of violent sleep behaviors with an interval between estimated RBD onset and V-PSG of 4.5 +/- 4.2 years. CONCLUSIONS: IRBD is not uncommon in the elderly community and its demographic and clinical profile is similar to those diagnosed in sleep centers. PMID- 29042181 TI - Opposing roles of PGD2 in GBM. AB - BACKGROUND: The World Health Organization classifies glioblastoma (GBM) as a grade IV astrocytoma. Despite the advances in chemotherapy, surgery, and radiation treatments that improve a patient's length of survival, the overall trajectory of the disease remains unchanged. GBM cells produce significant levels of various types of bioactive lipids. Prostaglandin D2 (PGD2) influences both pro and anti-tumorigenic activities in the cell; however, its role in GBM is unclear. Therefore, this study aimed to identify the impact of PGD2 on GBM cell activities in vitro. METHODS: First we looked to identify the presence of the PGD2 synthesis pathway through RT-PCR, immunohistochemistry, and HPLC-MS/MS in three GBM cell lines. Then, to observe PGD2's effects on cell count and apoptosis/mitosis (Hoechst 33342 stain), and migration (Transwell Assay), the cells were treated in vitro with physiological (<1MUM) and/or supraphysiological (>1MUM) concentrations of PGD2 over 72h. HPLC-MS/MS was used to identify the lipid composition of patients with either Grade II/III gliomas or GBM. RESULTS: We identified the presence of endogenous PGD2 with its corresponding enzymes and receptors. Exogenous PGD2 both increased cell count (<1MUM) and decreased cell count (10MUM) in a concentration-dependent manner. There were no significant effects on apoptosis. A significant decrease in mitotic activity was seen only in U251MG, and a significant increase was seen in migration with 5MUM PGD2 treatments. A very significant increase of PGD2 was seen from Grade II/III gliomas to GBM. CONCLUSIONS: Our study demonstrates that prostaglandin D2 possesses a dynamic, concentration-dependent effect in GBM cell activities. The increase of PGD2 production in GBM patients suggests a pro-tumorigenic role of PGD2 in glioma growth and invasion. Therefore, prostaglandin signaling in GBM requires further investigation to identify new targets for more effective therapies. PMID- 29042183 TI - Resilience and transition to practice in Direct Entry nursing graduates. AB - Resilience may be one factor that influences new graduates transition to practice. This pilot study looked at one cohort of Direct Entry Accelerated Master's in Nursing graduates and compared the relationship over time between their transition to practice experience and their resiliency. Seventeen of 21 graduates participated in surveys at graduation and then three, six and 12 months post-graduation. The survey consisted of four parts: Demographics, Educational/Professional Satisfaction Scale (2016), the Casey-Fink Graduate Nurse Experience Scale (2004), and the Wagnild & Young Resiliency Scale (1993). The results indicated that professional satisfaction fluctuates during the first year of practice. At 12 months post-graduation only 57% of the respondents felt their education prepared them for the reality of nursing practice. Resilience at 12 months post-graduation accounts for 79% of the variance in the Casey Fink scores at 12 months. Interventions to improve resilience in new nursing graduates may be one way to positively impact transition to practice. PMID- 29042184 TI - Analysis of substrate binding in individual active sites of bifunctional human ATIC. AB - Aminoimidazolecarboxamide ribonucleotide formyl transferase (AICARFT): Inosine monophosphate cyclohydrolase (IMPCH, collectively called ATIC) is a bifunctional enzyme that catalyses the penultimate and final steps in the purine de novo biosynthesis pathway. The bifunctional protein is dimeric and each monomer contains two different active sites both of which are capable of binding nucleotide substrates, this means to a potential total of four distinct binding events might be observed. Within this work we used a combination of site-directed and truncation mutants of ATIC to independently investigate the binding at these two sites using calorimetry. A single S10W mutation is sufficient to block the IMPCH active site allowing investigation of the effects of mutation on ligand binding in the AICARFT active site. The majority of nucleotide ligands bind selectively at one of the two active sites with the exception of xanthosine monophosphate, XMP, which, in addition to binding in both AICARFT and IMPCH active sites, shows evidence for cooperative binding with communication between symmetrically-related active sites in the two IMPCH domains. The AICARFT site is capable of independently binding both nucleotide and folate substrates with high affinity however no evidence for positive cooperativity in binding could be detected using the model ligands employed in this study. PMID- 29042185 TI - The impact of open to collaborative care model in cardiovascular surgical unit. AB - BACKGROUND: When compared with open care model, a closed one improves patient care in intensive care units (ICUs), mixed ICUs, surgical ICUs and trauma centers. We wanted to evaluate the benefit of a collaborative care model in highly specialized cardiovascular care unit. METHODS: This study was a retrospective, observational study conducted in the cardiovascular care unit of a teaching hospital. All patients who were above 20 years old and had received cardiovascular operation were enrolled for data collection and analysis. RESULTS: A total of 270 subjects were enrolled for analysis during the 2-year study period. In the collaborative care model, the CVSU length of stay (p = 0.001) and CVSU-free days (p = 0.0008) were significantly better than those in an open care model. DISCUSSION: The collaborative care model improved postoperative outcome in the cardiovascular surgical unit for those needing prolonged ICU care. PMID- 29042182 TI - Are endocrine disrupting compounds environmental risk factors for autism spectrum disorder? AB - Recent research on the etiology of autism spectrum disorder (ASD) has shifted in part from a singular focus on genetic causes to the involvement of environmental factors and their gene interactions. This shift in focus is a result of the rapidly increasing prevalence of ASD coupled with the incomplete penetrance of this disorder in monozygotic twins. One such area of environmentally focused research is the association of exposures to endocrine disrupting compounds (EDCs) with elevated risk for ASD. EDCs are exogenous chemicals that can alter endogenous hormone activity and homeostasis, thus potentially disrupting the action of sex and other natural hormones at all stages of human development. Inasmuch as sex hormones play a fundamental role in brain development and sexual differentiation, exposure to EDCs in utero during critical stages of development can have lasting neurological and other physiological influences on the developing fetus and, ultimately, the child as well as adult. This review will focus on the possible contributions of EDCs to autism risk and pathogenesis by first discussing the influence of endogenous sex hormones on the autistic phenotype, followed by a review of documented human exposures to EDCs and associations with behaviors relevant to ASD. Mechanistic links between EDC exposures and aberrant neurodevelopment and behaviors are then considered, with emphasis on EDC-induced transcriptional profiles derived from animal and cellular studies. Finally, this review will discuss possible mechanisms through which EDC exposure can lead to persistent changes in gene expression and phenotype, which may in turn contribute to transgenerational inheritance of ASD. PMID- 29042186 TI - Bacterial biofilm and associated infections. AB - Microscopic entities, microorganisms that drastically affect human health need to be thoroughly investigated. A biofilm is an architectural colony of microorganisms, within a matrix of extracellular polymeric substance that they produce. Biofilm contains microbial cells adherent to one-another and to a static surface (living or non-living). Bacterial biofilms are usually pathogenic in nature and can cause nosocomial infections. The National Institutes of Health (NIH) revealed that among all microbial and chronic infections, 65% and 80%, respectively, are associated with biofilm formation. The process of biofilm formation consists of many steps, starting with attachment to a living or non living surface that will lead to formation of micro-colony, giving rise to three dimensional structures and ending up, after maturation, with detachment. During formation of biofilm several species of bacteria communicate with one another, employing quorum sensing. In general, bacterial biofilms show resistance against human immune system, as well as against antibiotics. Health related concerns speak loud due to the biofilm potential to cause diseases, utilizing both device related and non-device-related infections. In summary, the understanding of bacterial biofilm is important to manage and/or to eradicate biofilm-related diseases. The current review is, therefore, an effort to encompass the current concepts in biofilm formation and its implications in human health and disease. PMID- 29042187 TI - Exploring patient experiences of a pain management centre: A qualitative study. AB - BACKGROUND AND AIMS: To improve care and management of patients with chronic pain it is important to understand patients' experiences of treatment, and of the people and the environment involved. As chronic pain patients often have long relationships with medical clinics and pain management centres, the team and team interactions with the patients could impact the treatment outcome. The aim of this study was to elicit as honest as possible an account of chronic pain patients' experiences associated with their care and feed this information back to the clinical team as motivation for improvement. METHODS: The research was conducted at a large hospital-based pain management centre. One hundred consecutive patients aged 18 years and above, who had visited the centre at least once before, were invited to participate. Seventy patients agreed and were asked to write a letter, as if to a friend, describing the centre. On completion of the study, all letters were transcribed into NVivo software and a thematic analysis performed. RESULTS: Six key themes were identified: (i) staff attitude and behaviour; (ii) interactions with the physician; (iii) importance of a dedicated pain management centre; (iv) personalized care; (v) benefits beyond pain control; (vi) recommending the pain management centre. CONCLUSION: The findings suggest that the main reasons that patients recommended the centre were: (i) support and validation provided by the staff; (ii) provision of detailed information about the treatment choices available; (iii) personalized management plan and strategies to improve overall quality of life alongside pain control. None of the letters criticized the care provided, but eight of seventy reported long waiting times for the first appointment as a problem. IMPLICATIONS: Patient views are central to improving care. However, satisfaction questionnaires or checklists can be intimidating, and restrictive in their content, not allowing patients to offer spontaneous feedback. We used a novel approach of writing a letter to a friend, which encouraged reporting of uncensored views. The results of the study have encouraged the clinical team to pursue their patient management strategies and work to reduce the waiting time for a first appointment. PMID- 29042188 TI - Network-based brain stimulation selectively impairs spatial retrieval. AB - BACKGROUND: Direct brain stimulation via electrodes implanted for intracranial electroencephalography (iEEG) permits the modulation of endogenous electrical signals with significantly greater spatial and temporal specificity than non invasive approaches. It also allows for the stimulation of deep brain structures important to memory, such as the hippocampus, that are difficult, if not impossible, to target non-invasively. Direct stimulation studies of these deep memory structures, though, have produced mixed results, with some reporting improvement, some impairment, and others, no consistent changes. OBJECTIVE/HYPOTHESIS: We hypothesize that to modulate cognitive function using brain stimulation, it is essential to modulate connected nodes comprising a network, rather than just alter local activity. METHODS: iEEG data collected while patients performed a spatiotemporal memory retrieval task were used to map frequency-specific, coherent oscillatory activity between different brain regions associated with successful memory retrieval. We used these to identify two target nodes that exhibited selectively stronger coupling for spatial vs. temporal retrieval. In a subsequent session, electrical stimulation - theta-bursts with a fixed phase-lag (0 degrees or 180 degrees ) - was applied to the two target regions while patients performed spatiotemporal retrieval. RESULTS: Stimulation selectively impaired spatial retrieval while not affecting temporal retrieval, and this selective impairment was associated with theta decoupling of the spatial retrieval network. CONCLUSION: These findings suggest that stimulating tightly connected nodes in a functional network at the appropriate phase-lag may effectively modulate the network function, and while in this case it impaired memory processes, it sets a foundation for further network-based perturbation studies. PMID- 29042189 TI - Dietary disinhibition mediates the relationship between poor sleep quality and body weight. AB - BACKGROUND: Inadequate sleep independently influences eating habits and weight status. However, the relationship between these three factors has not been well quantified. The objective of this study was to examine if eating behavior (i.e. dietary restraint, disinhibition and hunger) mediates the relationship between sleep and body mass index (BMI) in a large sample of American adults. METHOD: Cross-sectional data from the Nathan Kline Institute Rockland sample were assessed (n = 602; 38.9 +/- 14.5 years). Self-reported sleep and eating behavior were measured using the Pittsburgh Sleep Quality Index and Three Factor Eating Questionnaire, respectively. Path analysis was used to examine relationships amongst the construct, with mediation tested via bootstrapped confidence intervals. RESULTS: Poorer sleep quality was associated with both greater hunger (P = 0.03) and higher disinhibited eating (overeating in the presence of palatable foods or other disinhibiting stimuli like emotional stress; P < 0.001) behaviors. Higher disinhibited eating behavior was also associated with higher BMI (P < 0.001). There was a significant indirect relationship between sleep quality and BMI via disinhibition (b [95% CI] = 0.13 [0.06, 0.21], P = 0.001). No significant effects were found when total sleep time or time in bed were replaced as predictors in the mediation model. CONCLUSION: Disinhibited eating behavior mediated the relationship between sleep quality and weight status in both males and females. This mediation was due to aspects of sleep quality other than duration. These results suggest that improving sleep quality may benefit weight loss by helping to reduce an individuals' susceptibility to overeating. PMID- 29042190 TI - Hematopoietic stem/progenitor involvement in retinal microvascular repair during diabetes: Implications for bone marrow rejuvenation. AB - The widespread nature of diabetes affects all organ systems of an individual including the bone marrow. Long-term damage to the cellular and extracellular components of the bone marrow leads to a rapid decline in the bone marrow hematopoietic stem/progenitor cells (HS/PCs) compartment. This review will highlight the importance of bone marrow microenvironment in maintaining bone marrow HS/PC populations and the contribution of these key populations in microvascular repair during the natural history of diabetes. The autonomic nervous system can initiate and propagate bone marrow dysfunction in diabetes. Systemic pharmacological strategies designed to protect the bone marrow-HS/PC population from diabetes induced-oxidative stress and advanced glycation end product accumulation represent a new approach to target diabetic retinopathy progression. Protecting HS/PCs ensures their participation in vascular repair and reduces the risk of vasogdegeneration occurring in the retina. PMID- 29042191 TI - Roadmap to Achieve 25% Hypertension Control in Africa by 2025. AB - BACKGROUND: The Pan-African Society of Cardiology (PASCAR) has identified hypertension as the highest area of priority action to reduce heart disease and stroke on the continent. OBJECTIVES: The aim of this PASCAR roadmap on hypertension was to develop practical guidance on how to implement strategies that translate existing knowledge into effective action and improve detection, treatment and control of hypertension and cardiovascular health in sub-Saharan Africa (SSA) by the year 2025. METHODS: Development of this roadmap started with the creation of a consortium of experts with leadership skills in hypertension. In 2014, experts in different fields, including physicians and nonphysicians, were invited to join. Via face-to-face meetings and teleconferences, the consortium made a situation analysis, set a goal, identified roadblocks and solutions to the management of hypertension and customized the World Heart Federation roadmap to Africa. RESULTS: Hypertension is a major crisis on the continent but very few randomized controlled trials have been conducted on its management. Also, only 25.8% of the countries have developed or adopted guidelines for management of hypertension. Other major roadblocks are either government and health-system related or health care professional or patient related. The PASCAR hypertension task force identified a 10-point action plan to be implemented by African ministries of health to achieve 25% control of hypertension in Africa by 2025. CONCLUSIONS: Hypertension affects millions of people in SSA and if left untreated, is a major cause of heart disease and stroke. Very few SSA countries have a clear hypertension policy. This PASCAR roadmap identifies practical and effective solutions that would improve detection, treatment and control of hypertension on the continent and could be implemented as is or adapted to specific national settings. PMID- 29042192 TI - An immune-related gene expression atlas of the shrimp digestive system in response to two major pathogens brings insights into the involvement of hemocytes in gut immunity. AB - Much of our current knowledge on shrimp immune system is restricted to the defense reactions mediated by the hemocytes and little is known about gut immunity. Here, we have investigated the transcriptional profile of immune related genes in different organs of the digestive system of the shrimp Litopenaeus vannamei. First, the tissue distribution of 52 well-known immune related genes has been assessed by semiquantitative analysis in the gastrointestinal tract (foregut, midgut and hindgut) and in the hepatopancreas and circulating hemocytes of shrimp stimulated or not with heat-killed bacteria. Then, the expression levels of 18 genes from key immune functional categories were quantified by fluorescence-based quantitative PCR in the midgut of animals experimentally infected with the Gram-negative Vibrio harveyi or the White spot syndrome virus (WSSV). Whereas the expression of some genes was induced at 48 h after the bacterial infection, any of the analyzed genes showed to be modulated in response to the virus. Whole-mount immunofluorescence assays confirmed the presence of infiltrating hemocytes in the intestines, indicating that the expression of some immune-related genes in gut is probably due to the migratory behavior of these circulating cells. This evidence suggests the participation of hemocytes in the delivery of antimicrobial molecules into different portions of the digestive system. Taken all together, our results revealed that gut is an important immune organ in L. vannamei with intimate association with hemocytes. PMID- 29042193 TI - MicroRNA-126-3p attenuates blood-brain barrier disruption, cerebral edema and neuronal injury following intracerebral hemorrhage by regulating PIK3R2 and Akt. AB - MiR-126, a microRNA implicated in blood vessel integrity, angiogenesis and vascular inflammation, is markedly decreased in the sera of patients with intracerebral hemorrhage (ICH). The current study aims to evaluate the potential therapeutic effect of miR-126-3p on brain injuries in a rat model of collagenase induced ICH. Intracerebroventricular administration of a miR-126-3p mimic significantly alleviated behavioral defects 24 h after ICH, as examined by paw placement and corner tests. ICH led to increased blood-brain barrier (BBB) permeability and cerebral edema, both of which were attenuated by miR-126-3p mimic. Treatment with miR-126-3p mimic reduced the numbers of myeloperoxidase (MPO)-positive, OX42-positive, Fluoro Jade B (FJB)-positive and NEUN/TUNEL double positive cells around the hematoma, implying that miR-126-3p inhibited neutrophil infiltration, microglial activation and neuronal apoptosis following hemorrhage. In addition, miR-126-3p mimic suppressed the upregulation of phosphoinositide-3 kinase regulatory subunit 2 (PIK3R2) in the perihematomal area and maintained the activation of Akt. Furthermore, in vitro assays confirmed upregulation of PIK3R2 upon knockdown of miR-126-3p in rat brain microvascular endothelial cells (BMECs), and silencing of miR-126-3p resulted in impaired BMEC barrier permeability and reversed vascular endothelial growth factor (VEGF)- and angiopoietin-1 (Ang-1)-induced activation of Akt and inhibition of BMEC apoptosis. In summary, our results suggest that exogenous miR-126-3p may alleviate BBB disruption, cerebral edema and neuronal injury following ICH by targeting PIK3R2 and the Akt signaling pathway in brain vascular endothelium. PMID- 29042194 TI - Knockdown of RMI1 impairs DNA repair under DNA replication stress. AB - RMI1 (RecQ-mediated genome instability protein 1) forms a conserved BTR complex with BLM, Topo IIIalpha, and RMI2, and its absence causes genome instability. It has been revealed that RMI1 localizes to nuclear foci with BLM and Topo IIIalpha in response to replication stress, and that RMI1 functions downstream of BLM in promoting replication elongation. However, the precise functions of RMI1 during replication stress are not completely understood. Here we report that RMI1 knockdown cells are hypersensitive to hydroxyurea (HU). Using comet assay, we show that RMI1 knockdown cells exhibit accumulation of broken DNAs after being released from HU treatment. Moreover, we demonstrate that RMI1 facilitates the recovery from activated checkpoint and resuming the cell cycle after replicative stress. Surprisingly, loss of RMI1 results in a failure of RAD51 loading onto DNA damage sites. These findings reveal the importance of RMI1 in response to replication stress, which could explain the molecular basis for its function in maintaining genome integrity. PMID- 29042195 TI - Circular RNA WDR77 target FGF-2 to regulate vascular smooth muscle cells proliferation and migration by sponging miR-124. AB - Increasing evidences have revealed the important role of circular RNAs (circRNAs) in cardiovascular system disease. Whereas, the expression profiles and in-depth regulation of circRNAs on vascular smooth muscle cells (VSMCs) is still undetermined. In present study, our research team performed circRNAs microarray analysis to present the circRNAs expression profiles in high glucose induced VSMCs in vitro. Results showed that total of 983 circRNAs were discovered to be differentially expressed, and of these, 458 were upregulated and 525 were downregulated. Moreover, 31 circRNAs were up-regulated and 22 circRNAs were down regulated with 2 fold change (P < 0.05). One of an up-regulated circRNA, circWDR77, was identified. In vitro cell assay, circWDR77 silencing significantly inhibited the proliferation and migration. Bioinformatics methods discovered that miR-124 and fibroblast growth factor 2 (FGF-2) were downstream targets of circWDR77. The RNA sequence complementary binding was validated by RNA immunoprecipitation (RIP) and/or luciferase reporter assay. Further function validation experiments revealed that circWDR77 regulated VSMCs proliferation and migration via targeting miR-124/FGF2. Taken together, present study firstly reveals the circRNAs expression profiles in high glucose induced VSMCs and identifies the role of circWDR77-miR-124-FGF2 regulatory pathway in VSMCs proliferation and migration, which might provide a new theoretical basis for diabetes mellitus correlated vasculopathy. PMID- 29042196 TI - DCIR3 and DCIR4 are co-expressed on inflammatory and patrolling monocytes. AB - Dendritic cell inhibitory receptor 3 (DCIR3) is a member of dendritic immuno receptor family, of which protein expression has been unknown. We established a specific monoclonal antibody against mouse DCIR3 and investigated the expression of DCIR3 on immune cells of various immune organs. We found that DCIR3 was expressed on monocytes, but not on eosinophils and neutrophils. We also found the existence of a dichotomy in the levels of the expression of DCIR3 on monocytes in bone marrow, blood and spleen. Further investigation of the expression of several cell surface markers on DCIR3High cells and DCIR3Low cells revealed that DCIR3High cells were Ly-6C- CD43High CD11c+ CD80+ NK1.1+ patrolling monocytes and that DCIR3Low cells were Ly-6C+ CD43Low CD11c- CD80- NK1.1- inflammatory monocytes. These results and our previous finding that DCIR4 is expressed at high level in patrolling monocytes and at a low level in inflammatory monocytes (Kameda et al., 2016) suggest that DCIR3 and DCIR4 are simultaneously expressed on monocytes. Indeed, DCIR4+ CD11b+ monocytes from various immune organs expressed DCIR3. We also found that DCIR1 was expressed on DCIR4Low inflammatory monocytes but not on DCIR4HIgh patrolling monocytes. The anti- DCIR3 antibody established in this study, together with the previously established anti-DCIR1 and anti-DCIR4 antibodies, would be a valuable tool to investigate biology and pathophysiology of monocytes. PMID- 29042197 TI - Functional innervation of human induced pluripotent stem cell-derived cardiomyocytes by co-culture with sympathetic neurons developed using a microtunnel technique. AB - Microelectrode array (MEA) based-drug screening with human induced pluripotent stem cell-derived cardiomyocytes (hiPSCM) is a potent pre-clinical assay for efficiently assessing proarrhythmic risks in new candidates. Furthermore, predicting sympathetic modulation of the proarrhythmic side-effects is an important issue. Although we have previously developed an MEA-based co-culture system of rat primary cardiomyocyte and sympathetic neurons (rSNs), it is unclear if this co-culture approach is applicable to develop and investigate sympathetic innervation of hiPSCMs. In this study, we developed a co-culture of rSNs and hiPSCMs on MEA substrate, and assessed functional connections. The inter-beat interval of hiPSCM was significantly shortened by stimulation in SNs depending on frequency and pulse number, indicating functional connections between rSNs and hiPSCM and the dependency of chronotropic effects on rSN activity pattern. These results suggest that our co-culture approach can evaluate sympathetic effects on hiPSCMs and would be a useful tool for assessing sympathetic modulated cardiotoxicity in human cardiac tissue. PMID- 29042198 TI - Two-stage vertical flow multi-soil-layering (MSL) technology for efficient removal of coliforms and human pathogens from domestic wastewater in rural areas under arid climate. AB - This paper investigates the removal efficiency of organic matter, nitrogen, phosphorus, coliforms and pathogens from rural domestic wastewater in a two-stage vertical flow multi-soil-layering (MSL) system. The effects of wastewater quality, season and arid climate conditions on pollutants removal efficiency by the system were examined for one year. The experimental setup included two similar MSL systems composed of two layers: soil-mixture-layers (SML) and gravel permeable layers (PL) that are arranged in a brick like pattern. The applied hydraulic loading rate was 1000Lm-2day-1. Results showed that most of the physicochemical contaminants elimination occurred while the wastewater percolated through the first MSL stage. The second stage demonstrated an improvement in the reduction of all pollutants, especially fecal bacteria indicators and pathogens. The mean overall removal rates performed by the two-stage MSL system were 97% for TSS, 96% for BOD5, 91% for COD, 96% for TN and 95% for TP. For bacterial indicators, the combination of two-stage MSL system achieved high log removals between 2.21 and 3.15 log units. Contaminants reduction processes in MSL technology are more dependent on internal than external environmental factors. The effectiveness of the two-stage MSL system to treat domestic wastewater was strongly influenced by wastewater quality. Significant relationships between influent contaminants level and their removal efficiency were found. The efficiency of MSL technology to reduce contaminants is not sensitive to season and air temperature fluctuations. This is due to the capacity of MSL system materials to withstand the air temperature variation, which highlights one of the advantages of MSL's technology. Wastewater quality is the most important factor affecting the removal of contaminants in the MSL, which could be a critical parameter to considered when designing MSL system. Two-stage MSL system achieved a high treated wastewater quality amenable for treated wastewater reuse in agriculture recommended by Moroccan code of practice. Therefore, the combination of two-stage vertical flow MSL system could be considered an efficient and promising domestic wastewater treatment solution in arid countries to promote environmental protection and wastewater reuse. PMID- 29042199 TI - Temporal expression and gonadotropic regulation of aromatase and estrogen receptors in the ovary of wall lizard, Hemidactylus flaviviridis: Correlation with plasma estradiol and ovarian follicular development. AB - The current study in Indian wall lizard Hemidactylus flaviviridis for the first time demonstrates the reproductive phase-dependent expression pattern of aromatase (cyp19) and estrogen receptor subtypes (er-alpha and er-beta) as well as their gonadotropic regulation in the ovary of a squamate. The expression of cyp19 remained low during regressed phase, increased markedly in recrudescent and declined sharply in breeding phase. Further, temporal profile of plasma estradiol 17-beta (E2) was found to be relatively parallel to the expression pattern of ovarian cyp19. The expression pattern of estrogen receptors in the ovary showed subtype-specific variation along the reproductive cycle. Expression of ovarian er alpha remained high from regressed to late recrudescence, while er-beta expression that was low during regression dramatically increased with the initiation of follicular growth in early recrudescence and remained high until late recrudescence. Nonetheless, expression of both the receptors declined during breeding phase when ovary contained vitellogenic follicle. Regarding gonadotropic regulation, short-term treatment with Follicle stimulating hormone (3 injections of FSH) increased the ovarian expression of cyp19, er-alpha and er-beta while prolongation of treatment (7 or 11 injections) resulted in a marked decrease in expression of these genes concomitant to formation of vitellogenic follicle. However, a marked increase in plasma E2 was recorded after 7 injections of FSH. The direct role of gonadotropin in regulation of cyp19 and estrogen receptors was established by an in vitro study where FSH upregulated the expression of these genes in all stages of ovarian follicles (early growing, previtellogenic and early vitellogenic) of wall lizards. PMID- 29042200 TI - Announcing the publication of the WHO immunological basis for immunization series module on influenza vaccines. AB - In 2017, the World Health Organization (WHO) published a document aimed at facilitating influenza vaccine introduction and use in low- and middle-income countries. The document "The Immunological Basis for Immunization Series: Influenza Vaccines" is freely available on the WHO website. The main purpose of this document is to give immunization managers and vaccination professionals an authoritative but easily-understood overview of the scientific basis of influenza vaccination and the immunological basis for the WHO position on influenza vaccines. The influenza vaccine document comprises one module of the WHO Immunological Basis for Immunization series. We invite the immunization community to use these references, and we hope the influenza vaccine module will be a valuable resource for persons who manage and monitor influenza vaccine programs, particularly in low- and middle-income countries. PMID- 29042201 TI - Newcastle disease virus (NDV) recombinant expressing the hemagglutinin of H7N9 avian influenza virus protects chickens against NDV and highly pathogenic avian influenza A (H7N9) virus challenges. AB - The emerged highly pathogenic avian influenza A (H7N9) (HPAI) viruses in China pose a dual challenge to public health and poultry industry. Thus H7N9 vaccines are in an urgent need. In this study, we constructed a Newcastle disease virus (NDV)-vectored vaccine (rLXHAF) expressing the hemagglutinin (HA) of H7N9 virus fused with the transmembrane/cytoplasmic tail domain of the NDV fusion protein. rLXHAF stably expressed the HA protein, exhibited similar growth kinetics and pathogenicity as the parental virus. rLXHAF induced positive NDV-specific hemagglutination inhibition (HI), virus neutralization (VN) and total IgY antibodies and completely protected chickens from NDV challenge. Unexpectedly, rLXHAF elicited undetectable HI and VN titers but high overall IgY antibody titers against H7N9 measured by ELISA. The vaccine provided 80% protection against HPAI H7N9 challenge. Virus shedding of NDV and H7N9 challenge strains was reduced. Our results suggest that rLXHAF is immunogenic and efficacious against HPAI H7N9 virus in chickens. PMID- 29042202 TI - Efficacy of the oral rabies virus vaccine strain SPBN GASGAS in foxes and raccoon dogs. AB - To test the immunogenicity and efficacy of a new oral rabies virus vaccine strain SPBN GASGAS in wildlife target species, one group of foxes and two groups of raccoon dogs were offered a bait containing 1.7 ml of the vaccine (106.6 FFU/ml; 106.8 FFU/dose) and subsequently challenged approximately 180 days later with a fox rabies virus isolate. One group of raccoon dogs (n=30) received the same challenge dose (100.7 MICLD50/ml) as the red foxes (n=29). The other group with raccoon dogs (n=28) together with 8 animals that received the vaccine dose by direct instillation into the oral cavity (DIOC) were infected with a 40-fold higher dose of the challenge virus (102.3 MICLD50/ml). All but one of the 29 vaccinated foxes survived the challenge infection; meanwhile all 12 control foxes succumbed to rabies. Twenty-eight of 30 vaccinated raccoon dogs challenged with the same dose survived the infection, however only six of 12 control animals succumbed. When the higher challenge dose was administered, all 12 control animals died from rabies and all 36 vaccinated animals (28 baited plus 8 DIOC) survived. Blood samples were collected at different time points post vaccination and examined by both RFFIT and ELISA. The kinetics of the measured immune response was similar for both species, although in RFFIT slightly higher values were observed in foxes than in raccoon dogs. However, the immune response as measured in ELISA was identical for both species. The oral rabies virus vaccine SPBN GASGAS meets the efficacy requirements for live rabies virus vaccines as laid down by the European Pharmacopoeia. PMID- 29042203 TI - Association of antibodies to Plasmodium falciparum merozoite surface protein-4 with protection against clinical malaria. AB - Identification of parasite antigens targeted by immune effector mechanisms that confer protection against malaria is important for the design of a multi component malaria vaccine. Here, the association of antibodies reacting with the Plasmodium falciparum merozoite surface protein-4 (MSP4) with protection against clinical malaria was investigated in a Senegalese community living in an area of moderate, seasonal malaria transmission. Blood samples were collected at the end of an 8-month long dry season without any recorded parasite transmission from 206 residents enrolled in a prospective follow-up study. Active daily clinical monitoring was implemented during the subsequent five months. Entomologic monitoring documented parasite transmission during the first three months of follow-up. Serum IgG levels were determined by ELISA against three MSP4 baculovirus-encoded recombinant protein constructs, namely the full-length MSP4p40, MSP4p30 devoid of a highly polymorphic sequence stretch and the conserved C-terminal EGF-containing MSP4p20, as well as against a merozoite crude extract. Community seroprevalence against all three constructs was quite high, the lowest being against MSP4p30. Seroprevalence and antibody levels against the three MSP4 constructs were age-dependent. IgG1 dominated the anti-MSP4p20 responses, while both IgG1 and IgG3 were observed against MSP4p40. Anti-MSP4 antibodies were associated with the antibody-dependent respiratory burst (ADRB) activity in a functional assay of merozoite phagocytosis by polymorphonuclear cells. Importantly, high antibody levels against each of the three MSP4 constructs at the end of the dry season were associated with reduced morbidity during the subsequent transmission season in an age-adjusted Poisson regression model (IRR = 0.65 [0.50-0.83], P<0.001 for responses over the median values). These data are consistent with a protective role for the naturally acquired anti MSP4 antibodies and support further development of MSP4 as a candidate component of malaria vaccine. PMID- 29042204 TI - Antibody response to human papillomavirus vaccination and natural exposure in individuals with Fanconi Anemia. AB - Fanconi anemia (FA) is a rare genetic disorder associated with predisposition to head and neck and gynecological squamous cell cancers. In the general population, these cancers are commonly linked to human papillomavirus (HPV) infection. Antibodies to natural HPV infection and HPV vaccination were evaluated in 63 individuals with FA while considering host immune factors. Approximately 30% of reportedly unvaccinated participants were seropositive (HPV6-38%, HPV11-25%, HPV16-26%, and HPV18-26%). Seropositivity was significantly associated with having had sex regardless of age (p=.007). Most participants showed seropositivity after HPV vaccination (HPV6-100%, HPV11-100%, HPV16-100% and HPV18 92%). Interestingly, titers for all 4 subtypes were significantly lower in the post-hematopoietic stem cell transplant (HSCT) participants compared to those who received the vaccine, but had not undergone HSCT (HPV6-p=.030, HPV11-p=.003, HPV16-p=.018, HPV18-p=<.001). It is unclear if these titers sufficiently protect from new infection since protective serologic cut offs have not yet been defined for the HPV vaccine. Individual immune functions were not associated with HPV seropositivity, however, underlying heterogeneous immune deficiency may explain higher rates of seropositivity in our younger unvaccinated participants (age 4-13 years). To better measure the efficacy of HPV vaccination in those with FA and other immune-compromised or cancer-prone disorders, future well-controlled vaccine studies are required. PMID- 29042205 TI - Postnatal administration of memantine rescues TNF-alpha-induced decreased hippocampal precursor proliferation. AB - Pro-inflammatory cytokine exposure in early postnatal life triggers clear neurotoxic effects on the developing hippocampus. Tumor necrosis factor alpha (TNF-alpha) is one of the inflammatory mediators and is a potent inhibitor of neurogenesis. Memantine (MEM) is an uncompetitive N-methyl-d-aspartate (NMDA) receptor antagonist that has been demonstrated to increase the proliferation of hippocampal progenitor cells. However, the effects of MEM on TNF-alpha-mediated impairment of hippocampal precursor proliferation remain unclear. In this study, mice were exposed to TNF-alpha and later treated with MEM to evaluate its protective effects on TNF-alpha-mediated toxicity during hippocampal development. The results indicated that brief exposure to TNF-alpha on postnatal days 3 and 5 resulted in a significant impairment of hippocampal precursor proliferation and a depletion of hippocampal neural precursor cells (NPCs). This effect was attenuated by MEM treatment. We further confirmed that MEM treatment reversed the TNF-alpha-induced microglia activation and up-regulation of hippocampal NF kappaB, MCP-1 and IL-6 mRNA levels, which may be related to the proliferation and maintenance of NPCs. Overall, our results suggest that MEM treatment protects against TNF-alpha-induced repression of hippocampal precursor proliferation in postnatal mice by partially attenuating neuroinflammatory responses. PMID- 29042206 TI - Alpha-asarone attenuates depression-like behavior in nicotine-withdrawn mice: Evidence for the modulation of hippocampal pCREB levels during nicotine withdrawal. AB - In the present study, the effect alpha-asarone on nicotine withdrawal-induced depression-like behavior in mice was investigated. In this study, mice were exposed to drinking water or nicotine solution (10-200ug/ml) as a source of drinking for forty days. During this period, daily fluid consumption, food intake and body weight were recorded. The serum cotinine level was estimated before nicotine withdrawal. Naive mice or nicotine-withdrawn mice were treated with alpha-asarone (5, 10 and 20mg/kg, i.p.) or bupropion (10mg/kg, i.p.) for eight consecutive days and the forced swim test (FST) or locomotor activity test was conducted. In addition, the effect of alpha-asarone or bupropion on the hippocampal pCREB, CREB and BDNF levels during nicotine-withdrawal were measured. Results indicated that alpha-asarone (5, 10 and 20mg/kg, i.p.) or bupropion (10mg/kg, i.p.) pretreatment did not significantly alter the immobility time in the FST or spontaneous locomotor activity in naive mice. However, the immobility time of nicotine-withdrawn mice was significantly attenuated with alpha-asarone (5, 10 and 20mg/kg, i.p.) or bupropion (10mg/kg, i.p.) pretreatment in the FST. Besides, alpha-asarone (5, 10 and 20mg/kg, i.p.) or bupropion (10mg/kg, i.p.) pretreatment significantly attenuated the hippocampal pCREB levels in nicotine withdrawn mice. Overall, the present results indicate that alpha-asarone treatment attenuated the depression-like behavior through the modulation of hippocampal pCREB levels during nicotine-withdrawal in mice. PMID- 29042207 TI - Nimodipine attenuates tau phosphorylation at Ser396 via miR-132/GSK-3beta pathway in chronic cerebral hypoperfusion rats. AB - Chronic cerebral hypofusion (CCH) promotes hyperphosphorylation of tau proteins, a key neuropathological trait that reflects neurodegenerative disorders. Nimodipine, an L-type calcium channel antagonist, has been reported to show neuroprotective effects. In this study, we investigated the potential mechanism of nimodipine in tauopathies induced by CCH. MiR-132 is downregulated in tauopathies such as AD and directly targets tau mRNA to regulate its expression. Here, we report that CCH induced miR-132 deficiency and increased tau phosphorylation at Ser396 while tau expression was not influenced. Nimodipine treatment attenuated CCH induced tau phosphorylation by up-regulating expression of miR-132. Furthermore, nimodipine inhibited activation of GSK-3beta and neuronal apoptosis induced by CCH. Interestingly, GSK-3betamRNA level negatively correlated with the expression of miR-132. These findings support a role for nimodipine inhibiting tau phosphorylation at Ser396 via miR-132/GSK-3beta. Therefore, nimodipine may be a candidate for the treatment of tauopathy present in CCH. PMID- 29042208 TI - Antiallodynic activity of leflunomide is partially inhibited by naltrexone and glibenclamide and associated with reduced production of TNF-alpha and CXCL-1. AB - Leflunomide, an immunosuppressive drug approved for the treatment of patients with rheumatoid arthritis, exhibits many mechanisms which may affect the nociceptive processing. Therefore, the present study aimed to evaluate the effect induced by leflunomide on the mechanical allodynia in models of inflammatory and neuropathic pain in mice and investigate mechanisms mediating such effects. Per os (p.o.) administration of leflunomide (25, 50 or 100mg/kg) inhibited the inflammatory edema and mechanical allodynia induced by intraplantar carrageenan. Even ongoing inflammatory edema and mechanical allodynia were reduced by leflunomide. Previous administration of naltrexone (10mg/kg, intraperitoneal) or glibenclamide (40mg/kg, p.o.) partially attenuated leflunomide antiallodynic activity. A single administration of leflunomide (50 or 100mg/kg, p.o.) also partially inhibited ongoing mechanical allodynia induced by chronic constriction injury (CCI) or repeated administrations of paclitaxel. The antiallodynic effect induced by leflunomide (50 or 100mg/kg, p.o.) in the model of neuropathic pain induced by CCI was associated with reduced production of tumor necrosis factor alpha both at the injury site and ipsilateral paw. Leflunomide also reduced production of the chemokine CXCL-1 at the paw ipsilateral to the injury site. Concluding, leflunomide partially inhibited ongoing mechanical allodynia in models of inflammatory and neuropathic pain. The antiallodynic effect was associated with activation of opioidergic receptors and ATP-sensitive potassium channels and reduced production of inflammatory mediators. These data indicate leflunomide as a drug that should be further investigated aiming to identify a new analgesic pharmacotherapy and reinforces repositioning as an important strategy to identify new uses for approved drugs. PMID- 29042209 TI - Chondrocytes damage induced by T-2 toxin via Wnt/beta-catenin signaling pathway is involved in the pathogenesis of an endemic osteochondropathy, Kashin-Beck disease. AB - Kashin-Beck disease (KBD), an endemic osteochondropathy, is characterized by cartilage degeneration which is caused by abnormal catabolism in the extracellular matrix (ECM). In this study, we investigated the expression of the Wnt/beta-catenin signaling pathway in KBD pathogenesis. Among the proteins involved in the Wnt/beta-catenin signaling pathway, WNT-3A, FZD1, SOX9, and beta catenin were up-regulated, while FRZB was down-regulated in KBD cartilage. C28/I2 cells were evaluated for cell viability using the MTT assay after exposure to T-2 toxin, a suspicious environmental pathogenic factors of KBD. C28/I2 cells were treated with different intervening concentrations (0.001MUg/mL,0.005MUg/mL and 0.01MUg/mL) of T-2 toxin for 24h. The expression of FZD1 and CTNNB1 (i.e.,beta catenin) was significantly reduced and SOX9 expression was significantly increased in chondrocytes after treatment with different intervening concentrations of T-2 toxin. Our results indicate that alterations in the Wnt/beta-catenin signaling pathway in articular cartilage play an important role in the onset and pathogenesis of KBD. PMID- 29042210 TI - The Physicochemical Basis of Clofazimine-Induced Skin Pigmentation. AB - Clofazimine is a weakly basic, Food and Drug Administration-approved antibiotic recommended by the World Health Organization to treat leprosy and multi-drug resistant tuberculosis. Upon prolonged treatment, clofazimine extensively bioaccumulates and precipitates throughout the organism, forming crystal-like drug inclusions (CLDIs). Due to the drug's red color, it is widely believed that clofazimine bioaccumulation results in skin pigmentation, its most common side effect. To test whether clofazimine-induced skin pigmentation is due to CLDI formation, we synthesized a closely related clofazimine analog that does not precipitate under physiological pH and chloride conditions that are required for CLDI formation. Despite the absence of detectable CLDIs in mice, administration of this analog still led to significant skin pigmentation. In clofazimine-treated mice, skin cryosections revealed no evidence of CLDIs when analyzed with a microscopic imaging system specifically designed for detecting clofazimine aggregates. Rather, the reflectance spectra of the skin revealed a signal corresponding to the soluble, free base form of the drug. Consistent with the low concentrations of clofazimine in the skin, these results suggest that clofazimine induced skin pigmentation is not due to clofazimine precipitation and CLDI formation, but rather to the partitioning of the circulating, free base form of the drug into subcutaneous fat. PMID- 29042211 TI - A simple mathematical model of cell clustering by chemotaxis. AB - Chemotaxis is the process by which cells and clusters of cells follow chemical signals in order to combine and form larger clusters. The spreading of the chemical signal from any given cell can be modeled using the linear diffusion equation, and the standard equations of motion can be used to determine how a cell, or cluster of cells, moves in response to the chemical signal. The resulting differential equations for the cell locations are integrated through time using the fourth-order Runge-Kutta method. The effect which changing the initial concentration magnitude, diffusion constant and velocity damping parameter has on the shape of the final clusters of cells is investigated and discussed. PMID- 29042212 TI - MoRFPred-plus: Computational Identification of MoRFs in Protein Sequences using Physicochemical Properties and HMM profiles. AB - MOTIVATION: Intrinsically Disordered Proteins (IDPs) lack stable tertiary structure and they actively participate in performing various biological functions. These IDPs expose short binding regions called Molecular Recognition Features (MoRFs) that permit interaction with structured protein regions. Upon interaction they undergo a disorder-to-order transition as a result of which their functionality arises. Predicting these MoRFs in disordered protein sequences is a challenging task. METHOD: In this study, we present MoRFpred-plus, an improved predictor over our previous proposed predictor to identify MoRFs in disordered protein sequences. Two separate independent propensity scores are computed via incorporating physicochemical properties and HMM profiles, these scores are combined to predict final MoRF propensity score for a given residue. The first score reflects the characteristics of a query residue to be part of MoRF region based on the composition and similarity of assumed MoRF and flank regions. The second score reflects the characteristics of a query residue to be part of MoRF region based on the properties of flanks associated around the given residue in the query protein sequence. The propensity scores are processed and common averaging is applied to generate the final prediction score of MoRFpred plus. RESULTS: Performance of the proposed predictor is compared with available MoRF predictors, MoRFchibi, MoRFpred, and ANCHOR. Using previously collected training and test sets used to evaluate the mentioned predictors, the proposed predictor outperforms these predictors and generates lower false positive rate. In addition, MoRFpred-plus is a downloadable predictor, which makes it useful as it can be used as input to other computational tools. AVAILABILITY: https://github.com/roneshsharma/MoRFpred-plus/wiki/MoRFpred-plus:-Download. PMID- 29042213 TI - Morpho-functional variety of the coxal glands in cheyletoid mites (Prostigmata). II. Cheyletidae. AB - Trombidiform mites are characterized by the presence of several paired glands in the anterior body portion united by a common conducting duct (podocephalic canal). Apart from the acinous (salivary) glands the podocephalic system includes a pair of tubular coxal glands (CGs) responsible for osmoregulation. The aim of the present study was to figure out how functional changes of acinous glands reflect on the corresponding CG. For this purpose, the anatomy and fine structure of the CG were analyzed in two mite species, Bakericheyla chanayi and Ornithocheyletia sp. (Cheyletidae), which have a different composition of their single acinous gland. The results showed that in both species the CG lacks a filtering saccule. It is composed of the proximal and distal tubes and leads into a cuticle-lined excretory duct. Both tubes demonstrate a similar species-specific fine structure. They are characterized by an extensive system of apical membrane invaginations (internal canals) associated with numerous large mitochondria. Local areas of modified internal canals were regularly observed in both species. They contain structures resembling those constituting filtering slit diaphragms of other animals. In O. sp., CG cells in addition demonstrate features characteristic of protein-like secretion. Apparently this correlates with the loss of true salivary glands in this species, as its acinous gland was previously assumed as silk producing. Contrary to this, the CG of B. chanayi shows no kind of granulation, which coincides with the presence of a salivary portion in its complex acinous gland. The microtubule-rich intercalary cells at the base of the excretory duct were associated with special muscles presumably regulating the dilation of the duct lumen. These cells might represent a basic feature common to different types of podocephalic glands. PMID- 29042214 TI - Synthetic cannabinoid AM2201 induces seizures: Involvement of cannabinoid CB1 receptors and glutamatergic transmission. AB - Abuse of synthetic cannabinoids is a serious social problem worldwide. Intentional ingestion of synthetic cannabinoids can cause severe toxicity, including seizures. Here we investigated the effects of acute administration of synthetic cannabinoids on the induction of epileptic seizures by monitoring electroencephalographic activity in freely moving mice. The synthetic cannabinoid, AM2201, induced abnormal, high-amplitude (>2-fold baseline amplitude), sharp-wave activity. The abnormal spike-wave discharges were accompanied by epileptiform behavior: rigid posture, tail extension, rearing with forepaws extended, jumping, and intermittent tonic-clonic jerking movements. The abnormal spike-wave discharges and behavioral changes were suppressed by pretreatment with the selective CB1 receptor antagonist AM251, but not with the selective CB2 receptor antagonist AM630 or the vanilloid receptor antagonist, capsazepine. Furthermore, the group 1 metabotropic glutamate receptor antagonist SIB1757 eliminated AM2201-induced spike-wave discharges and episodes of epileptiform behavior. AM2201 markedly increased the extracellular glutamate concentration in the hippocampus during periods of AM2201-induced abnormal spike wave discharges and behavioral changes. These findings are the first evidence that AM2201 induces epileptic seizures by enhancing glutamatergic transmission in the hippocampus. Our findings demonstrate that induction of epileptic seizures by synthetic cannabinoids is mediated by CB1 receptors, but not by CB2 receptors, and further suggest that rapid elevation of glutamatergic transmission may play an important role in the induction of seizures following intentional ingestion of synthetic cannabinoids. PMID- 29042215 TI - A novel stilbene-like compound that inhibits melanoma growth by regulating melanocyte differentiation and proliferation. AB - Melanoma is the most aggressive form of skin cancer. Current challenges to melanoma therapy include the adverse effects from immunobiologics, resistance to drugs targeting the MAPK pathway, intricate interaction of many signal pathways, and cancer heterogeneity. Thus combinational therapy with drugs targeting multiple signaling pathways becomes a new promising therapy. Here, we report a family of stilbene-like compounds called A11 that can inhibit melanoma growth in both melanoma-forming zebrafish embryos and mouse melanoma cells. The growth inhibition by A11 is a result of mitosis reduction but not apoptosis enhancement. Meanwhile, A11 activates both MAPK and Akt signaling pathways. Many A11-treated mouse melanoma cells exhibit morphological changes and resemble normal melanocytes. Furthermore, we found that A11 causes down-regulation of melanocyte differentiation genes, including Pax3 and MITF. Together, our results suggest that A11 could be a new melanoma therapeutic agent by inhibiting melanocyte differentiation and proliferation. PMID- 29042217 TI - The detection of hepatitis c virus core antigen using afm chips with immobolized aptamers. AB - In the present study, the possibility of hepatitis C virus core antigen (HCVcoreAg) detection in buffer solution, using atomic force microscope chip (AFM chip) with immobilized aptamers, has been demonstrated. The target protein was detected in 1mL of solution at concentrations from 10-10M to 10-13M. The registration of aptamer/antigen complexes on the chip surface was carried out by atomic force microscopy (AFM). The further mass-spectrometric (MS) identification of AFM-registered objects on the chip surface allowed reliable identification of HCVcoreAg target protein in the complexes. Aptamers, which were designed for therapeutic purposes, have been shown to be effective in HCVcoreAg detection as probe molecules. PMID- 29042218 TI - Interest of proviral HIV-1 DNA genotypic resistance testing in virologically suppressed patients candidate for maintenance therapy. AB - Switch of antiretroviral therapy in virologically suppressed HIV-infected patients is frequent, to prevent toxicities, for simplification or convenience reasons. Pretherapeutic genotypic resistance testing on RNA can be lacking in some patients, which could enhance the risk of virologic failure, if resistance associated mutations of the new regimen are not taken into account. Proviral DNA resistance testing in 69 virologically suppressed patients on antiretroviral treatment with no history of virological failure were pair-wised compared with pre-ART plasma RNA resistance testing. The median time between plasma (RNA testing) and whole blood (proviral DNA testing) was 47 months (IQR 29-63). A stop codon was evidenced in 23% (16/69) of proviral DNA sequences; these strains were considered as defective, non-replicative, and not taken into consideration. Within the non defective strains, concordance rate between plasma RNA and non defective proviral DNA was high both on protease (194/220 concordant resistance associated mutations=88%) and reverse transcriptase (28/37 concordant resistance associated mutations=76%) genes. This study supports that proviral DNA testing might be an informative tool before switching antiretrovirals in virologically suppressed patients with no history of virological failure, but the interpretation should be restricted to non-defective viruses. PMID- 29042216 TI - Mapping human brain lesions and their functional consequences. AB - Neuroscience has a long history of inferring brain function by examining the relationship between brain injury and subsequent behavioral impairments. The primary advantage of this method over correlative methods is that it can tell us if a certain brain region is necessary for a given cognitive function. In addition, lesion-based analyses provide unique insights into clinical deficits. In the last decade, statistical voxel-based lesion behavior mapping (VLBM) emerged as a powerful method for understanding the architecture of the human brain. This review illustrates how VLBM improves our knowledge of functional brain architecture, as well as how it is inherently limited by its mass univariate approach. A wide array of recently developed methods appear to supplement traditional VLBM. This paper provides an overview of these new methods, including the use of specialized imaging modalities, the combination of structural imaging with normative connectome data, as well as multivariate analyses of structural imaging data. We see these new methods as complementing rather than replacing traditional VLBM, providing synergistic tools to answer related questions. Finally, we discuss the potential for these methods to become established in cognitive neuroscience and in clinical applications. PMID- 29042219 TI - Accurate Classification of Diminutive Colorectal Polyps Using Computer-Aided Analysis. AB - BACKGROUND & AIMS: Narrow-band imaging is an image-enhanced form of endoscopy used to observed microstructures and capillaries of the mucosal epithelium which allows for real-time prediction of histologic features of colorectal polyps. However, narrow-band imaging expertise is required to differentiate hyperplastic from neoplastic polyps with high levels of accuracy. We developed and tested a system of computer-aided diagnosis with a deep neural network (DNN-CAD) to analyze narrow-band images of diminutive colorectal polyps. METHODS: We collected 1476 images of neoplastic polyps and 681 images of hyperplastic polyps, obtained from the picture archiving and communications system database in a tertiary hospital in Taiwan. Histologic findings from the polyps were also collected and used as the reference standard. The images and data were used to train the DNN. A test set of images (96 hyperplastic and 188 neoplastic polyps, smaller than 5 mm), obtained from patients who underwent colonoscopies from March 2017 through August 2017, was then used to test the diagnostic ability of the DNN-CAD vs endoscopists (2 expert and 4 novice), who were asked to classify the images of the test set as neoplastic or hyperplastic. Their classifications were compared with findings from histologic analysis. The primary outcome measures were diagnostic accuracy, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and diagnostic time. The accuracy, sensitivity, specificity, PPV, NPV, and diagnostic time were compared among DNN-CAD, the novice endoscopists, and the expert endoscopists. The study was designed to detect a difference of 10% in accuracy by a 2-sided McNemar test. RESULTS: In the test set, the DNN-CAD identified neoplastic or hyperplastic polyps with 96.3% sensitivity, 78.1% specificity, a PPV of 89.6%, and a NPV of 91.5%. Fewer than half of the novice endoscopists classified polyps with a NPV of 90% (their NPVs ranged from 73.9% to 84.0%). DNN-CAD classified polyps as neoplastic or hyperplastic in 0.45 +/- 0.07 seconds-shorter than the time required by experts (1.54 +/- 1.30 seconds) and nonexperts (1.77 +/- 1.37 seconds) (both P < .001). DNN-CAD classified polyps with perfect intra-observer agreement (kappa score of 1). There was a low level of intra-observer and inter-observer agreement in classification among endoscopists. CONCLUSIONS: We developed a system called DNN CAD to identify neoplastic or hyperplastic colorectal polyps less than 5 mm. The system classified polyps with a PPV of 89.6%, and a NPV of 91.5%, and in a shorter time than endoscopists. This deep-learning model has potential for not only endoscopic image recognition but for other forms of medical image analysis, including sonography, computed tomography, and magnetic resonance images. PMID- 29042221 TI - Development of photoaffinity derivatives of the antitumor macrolide aplyronine A, a PPI-inducer between actin and tubulin. AB - The antitumor and actin-depolymerizing marine macrolide aplyronine A (ApA) synergistically binds to tubulin in association with actin, and prevents spindle formation and mitosis. While the crystal structure of the actin ApA complex was solved in 2006, its interaction with the tubulin heterodimer has not been clarified. To investigate the binding modes of ApA as a unique protein-protein interaction (PPI)-inducer between these two cytoskeletal proteins, we prepared its photoaffinity acetylene and fluorescent derivatives with the aid of molecular modeling studies for probe design. Among these three derivatives, the ApA-PPA TAMRA probe specifically photoreacted with both actin and tubulin in vitro. However, the photolabeling yield of tubulin was quite low (up to ~1%), and one of the major side-reactions was the addition of a water molecule to the carbene species generated from an aryldiazirine moiety on the hydrophilic surface of actin. PMID- 29042220 TI - Long Noncoding RNA uc.173 Promotes Renewal of the Intestinal Mucosa by Inducing Degradation of MicroRNA 195. AB - BACKGROUND AND AIMS: The mammalian intestinal epithelium self-renews rapidly and homeostasis is preserved via tightly controlled mechanisms. Long noncoding RNAs transcribed from ultraconserved regions (T-UCRs) control different cell functions, but little is known about their role in maintaining the integrity of the intestinal epithelium. We searched for T-UCRs that regulate growth of the intestinal mucosa and investigated the mechanism by which T-UCR uc.173 regulates epithelial renewal. METHODS: C57BL/6J mice were deprived of food for 48 hours in fasting experiments. Some mice were given intraperitoneal injections of a plasmid encoding LNA-anti-uc.173, to knock down endogenous uc.173. For studies using organoids, primary enterocytes were isolated from the intestine and transfected with the uc.173 transgene to increase uc.173 levels. Intestinal epithelial cells (Caco-2 and IEC-6 lines) were transfected with LNA-anti-uc.173 or uc.173 transgene. We quantified intestinal epithelial renewal based on BrdU incorporation, villus height and crypt depth, and cell number. The association of uc.173 with microRNA 195 (miRNA195) was determined by RNA pull-down assays. RESULTS: Genome-wide profile analyses identified 21 T-UCRs, including uc.173, that were differentially expressed between intestinal mucosa of fasted vs non fasted mice. Increasing levels of uc.173 by expression of a transgene increased growth of intestinal epithelial cells and organoids. Decreasing uc.173 levels by LNA-anti-uc.173 in mice reduced renewal of the intestinal epithelium. We found that uc.173 interacted directly with the primary transcript of miRNA195, leading to miRNA195 degradation. CONCLUSIONS: In analyses of intestinal epithelial cells and mice, we identified uc.173 noncoding RNA that regulates growth of the intestinal mucosa and stimulates intestinal epithelial renewal by reducing levels of miRNA195. PMID- 29042222 TI - Development of a microarray-based assay for efficient testing of new HSP70/DnaK inhibitors. AB - A facile method for testing ATP binding in a highly miniaturized microarray environment using human HSP70 and DnaK from Mycobacterium tuberculosis as biological targets is reported. Supported by molecular modelling studies we demonstrate that the position of the fluorescence label on ATP has a strong influence on the binding to human HSP70. Importantly, the label has to be positioned on the adenine ring and not to the terminal phosphate group. Unlabelled ATP displaced bound Cy5-ATP from HSP70 in the micromolar range. The affinity of a well-known HSP70 inhibitor VER155008 for the ATP binding site in HSP70 was determined, with a EC50 in the micromolar range, whereas reblastin, a HSP90-inhibitor, did not compete for ATP in the presence of HSP70. The applicability of the method was demonstrated by screening a small compound library of natural products. This unraveled that terphenyls rickenyl A and D, recently isolated from cultures of the fungus Hypoxylon rickii, are inhibitors of HSP70. They compete with ATP for the chaperone in the range of 29 uM (Rickenyl D) and 49 uM (Rickenyl A). Furthermore, the microarray-based test system enabled protein-protein interaction analysis using full-length HSP70 and HSP90 proteins. The labelled full-length human HSP90 binds with a half-maximal affinity of 5.5 ug/ml (~40 uM) to HSP70. The data also demonstrate that the microarray test has potency for many applications from inhibitor screening to target-oriented interaction studies. PMID- 29042223 TI - Astemizole analogues with reduced hERG inhibition as potent antimalarial compounds. AB - Astemizole is a H1-antagonist endowed with antimalarial activity, but has hERG liabilities. Systematic structural modifications of astemizole led to the discovery of analogues that display very potent activity as inhibitors of the growth of the Plasmodium parasite, but show a decreased hERG inhibition, when compared to astemizole. These compounds can be used as starting point for the development of a new class of antimalarials. PMID- 29042224 TI - Potent anti-melanogenic activity and favorable toxicity profile of selected 4 phenyl hydroxycoumarins in the zebrafish model and the computational molecular modeling studies. AB - 7-Hydroxy-4-phenylcoumarin (7C) and 5,7-dihydroxy-4-phenylcoumarin (5,7C) have been evaluated as potential anti-melanogenic agents in the zebrafish (Danio rerio) model in comparison to commercially utilized depigmenting agents hydroquinone and kojic acid. 7C and 5,7C decreased the body pigmentation at 5 ug/mL, while did not affect the embryos development and survival at doses <=50 ug/mL and <=25 ug/mL. Unlike hydroquinone and kojic acid, 4-phenyl hydroxycoumarins were no melanocytotoxic, showed no cardiotoxic side effects, neither caused neutropenia in zebrafish embryos, suggesting these compounds may present novel skin-whitening agents with improved pharmacological properties. Inhibition of tyrosinase was identified as the possible mode of anti-melanogenic action. Molecular docking studies using the homology model of human tyrosinase as well as adenylate cyclase revealed excellent correlation with experimentally obtained results. PMID- 29042225 TI - Peptides for optical medical imaging and steps towards therapy. AB - Optical medical imaging is a rapidly growing area of research and development that offers a multitude of healthcare solutions both diagnostically and therapeutically. In this review, some of the most recently described peptide based optical probes are reviewed with a special emphasis on their in vivo use and potential application in a clinical setting. PMID- 29042226 TI - Liquid nitrogen cryotherapy for chronic recalcitrant interdigital candidiasis of toe spaces-an uncontrolled pilot study. PMID- 29042227 TI - Pathogenetic insights from quantification of the cerebriform connective tissue nevus in Proteus syndrome. AB - BACKGROUND: The plantar cerebriform connective tissue nevus (CCTN) is the most common and problematic cutaneous manifestation of Proteus syndrome. OBJECTIVE: To gain insights into CCTN pathogenesis and natural history. METHODS: The size and location of plantar CCTN was measured on 152 images from 22 individuals with Proteus syndrome by 2 independent, blinded reviewers. Average measures of plantar CCTN were transformed into a linear mixed model to estimate proportionate change in size with age. RESULTS: Median patient age was 6.9 years at study onset. The intraclass correlation coefficient between 2 blinded reviewers was 0.946 for CCTN single measures. The CCTN relative area increased with age in children (n = 18, P < .0001) by 5.6% per year. Confluent papules and nodules extending beyond the boundaries of CCTNs were gradually replaced by typical CCTN over time. The location of CCTN in different individuals overlapped near the ball of the foot. A positive relationship between CCTN growth rate and AKT1 mutant allele frequency was observed (0.62, P = .10, n = 8). LIMITATIONS: This was a retrospective review using photographs. CONCLUSION: CCTN growth is affected by age and extent of the CCTN precursor lesion. Monitoring of CCTN size might prove useful for evaluating drug response in the treatment of Proteus syndrome. PMID- 29042228 TI - Beyond the triad: Inheritance, mucocutaneous phenotype, and mortality in a cohort of patients with dyskeratosis congenita. PMID- 29042229 TI - Allergen of the Year alkyl glucoside is an ingredient in top-selling sunscreens and facial moisturizers. PMID- 29042230 TI - Risk of melanoma in patients with multiple myeloma: A Surveillance, Epidemiology, and End Results population-based study. PMID- 29042231 TI - Commentary: The Corrona-National Psoriasis Foundation Psoriasis Registry: A new collaborative approach for postapproval registries. PMID- 29042232 TI - Gender Differences in Indoor Tanning Habits and Location. PMID- 29042233 TI - Trends in device utilization ratios in intensive care units over 10-year period in South Korea: device utilization ratio as a new aspect of surveillance. AB - BACKGROUND: Device-associated infection (DAI) is an important issue related to patient safety. It is important to reduce unnecessary device utilization in order to decrease DAI rates. AIM: To investigate the time trend of device utilization ratios (DURs) of voluntarily participating hospitals, collected over a 10-year period through the Korean National Healthcare-associated Infections Surveillance System (KONIS). METHODS: DURs from 2006 to 2015 in 190 intensive care units (ICUs) participating in KONIS were included in this study. DURs were calculated as the ratio of device-days to patient-days. The pooled incidences of DAIs and DURs were calculated for each year of participation, and the year-wise trends were analysed. FINDINGS: Year-wise ventilator utilization ratio (V-DUR) increased significantly from 0.40 to 0.41 (F = 6.27, P < 0.01), urinary catheter utilization ratio (U-DUR) increased non-significantly from 0.83 to 0.84 (F = 1.66, P = 0.10), and C-line utilization ratio (CL-DUR) decreased non significantly from 0.55 to 0.51 (F = 1.62, P = 0.11). In the subgroup analysis, 'medical ICU' (F = 2.79, P < 0.01) and 'hospital with >900 beds' (F = 3.07, P < 0.01) were associated with the significant increase in V-DUR. CONCLUSION: In Korea, V-DUR showed a significant, year-wise increasing trend. The trends for U DUR and CL-DUR showed no significant decrease. Efforts are required to ensure the reduction of DURs. PMID- 29042234 TI - Mother-to-child transmission of KPC-producing Klebsiella pneumoniae: potential relevance of a low microbial urinary load for screening purposes. PMID- 29042235 TI - Splicing factors as regulators of miRNA biogenesis - links to human disease. AB - MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression post transcriptionally by fine-tuning mRNA levels and translation during development and in adult tissues. miRNAs are transcribed as parts of longer precursors that undergo multiple processing steps before the mature miRNAs reach their target mRNAs in the cytoplasm. In addition to Drosha/DGCR8 and Dicer that are the essential components of the miRNA processing pathway, a range of other RNA binding proteins have recently been implicated in miRNA biogenesis. Among these, several well-known splicing factors have emerged as regulators of distinct miRNAs. In this review, we examine the mechanisms by which splicing factors regulate miRNA biogenesis. As both splicing factors and miRNAs play central roles in human disease biology we discuss implications of the links between splicing factors and miRNAs in human disease. PMID- 29042236 TI - Mass spectrometry approaches to study plant endomembrane trafficking. AB - Intracellular proteins reside in highly controlled microenvironments in which they perform context specific functions. Trafficking pathways have evolved that enable proteins to be precisely delivered to the correct location but also to re locate in response to environmental perturbation. Trafficking of membrane proteins to their correct endomembrane location is especially important to enable them to carry out their function. Although a considerable amount of knowledge about membrane protein trafficking in plants has been delivered by years of dedicated research, there are still significant gaps in our understanding of this process. Further knowledge of endomembrane trafficking is dependent on thorough characterization of the subcellular components that constitute the endomembrane system. Such studies are challenging for a number of reasons including the complexity of the plant endomembrane system, inability to purify individual constituents, discrimination protein cargo for full time residents of compartments, and the fact that many proteins function at more than one location. In this review, we describe the components of the secretory pathway and focus on how mass spectrometry based proteomics methods have helped elucidation of this pathway. We demonstrate that the combination of targeted and untargeted approaches is allowing research into new areas of the secretory pathway investigation. Finally we describe new enabling technologies that will impact future studies in this area. PMID- 29042237 TI - Ligand partitioning into lipid bilayer membranes under high pressure: Implication of variation in phase-transition temperatures. AB - The variation in phase-transition temperatures of dipalmitoylphosphatidylcholine (DPPC) bilayer membrane by adding two membrane-active ligands, a long-chain fatty acid (palmitic acid (PA)) and an inhalation anesthetic (halothane (HAL)), was investigated by light-transmittance measurements and fluorometry. By assuming the thermodynamic colligative property for the bilayer membrane at low ligand concentrations, the partitioning behavior of these ligands into the DPPC bilayer membrane was considered. It was proved from the differential partition coefficients between two phases that PA has strong affinity with the gel (lamellar gel) phase in a micro-molal concentration range and makes the bilayer membrane more ordered, while HAL has strong affinity with the liquid crystalline phase in a milli-molal concentration range and does the bilayer membrane more disordered. The transfer volumes of both ligands from the aqueous solution to each phase of the DPPC bilayer membrane showed that the preferential partitioning of the PA molecule into the gel (lamellar gel) produces about 20% decrease in transfer volume as compared with the liquid crystalline phase, whereas that of the HAL molecule into the liquid crystalline phase does about twice increase in transfer volume as compared with the gel (ripple gel) phase. Furthermore, changes in thermotropic and barotropic phase behavior of the DPPC bilayer membrane by adding the ligand was discussed from the viewpoint of the ligand partitioning. Reflecting the contrastive partitioning of PA and HAL into the pressure-induced interdigitated gel phase among the gel phases, it was revealed that PA suppresses the formation of the interdigitated gel phase under high pressure while HAL promotes it. These results clearly indicate that each phase of the DPPC bilayer membrane has a potential to recognize various ligand molecules. PMID- 29042238 TI - Novel strategy for immunomodulation: Dissolving microneedle array encapsulating thymopentin fabricated by modified two-step molding technology. AB - Thymopentin (TP5) is commonly used in the treatment for autoimmune diseases, with a short plasma half-life (30s) and a long treatment period (7 days to 6 months). It is usually administrated by syringe injection, resulting in compromised patient compliance. Dissolving microneedle array (DMNA) offers a superior approach for transdermal delivery of biological macromolecules, as it allows painless penetration through the stratum corneum and generates minimal biohazardous waste after dissolving in the skin. Despite recent advances in DMNA as a novel approach for transdermal drug delivery, problem of insufficient mechanical strength remains to be solved. In this study, TP5-loaded DMNA (TP5 DMNA) was uniquely developed using a modified two-step molding technology. The higher mechanical strength was furnished by employing bovine serum albumin (BSA) as a co-material to fabricate the needles. The obtained TP5-DMNA containing BSA displayed better skin penetration and higher drug loading efficiency than that without BSA. The in vivo pharmacodynamics study demonstrated that TP5-DMNA had comparative effect on immunomodulation to intravenous injection of TP5, in terms of ameliorating the CD4+/CD8+ ratio, SOD activity and MDA value to the basal level. Only mild irritation was observed at the site of administration. These results suggest that the novel TP5-DMNA utilizing BSA provides an alternative approach for convenient and safe transdermal delivery of TP5, which is a promising administration strategy for future clinical application. PMID- 29042239 TI - Microbiota of field-collected Ixodes scapularis and Dermacentor variabilis from eastern and southern Ontario, Canada. AB - The microbiota of hard ticks has been an area of growing interest due to the potential role that the broader microbial community may play in pathogen carriage and transmission. In the last two decades, Ontario, Canada has experienced rapid changes in the risk of tick-borne disease, primarily due to the range expansion of Ixodes scapularis. Another human-biter, Dermacentor variabilis, is a longstanding resident of the province, but currently poses minimal risk of pathogen transmission. To examine the microbiota of these two species, we collected adult and nymphal I. scapularis and D. variabilis from the eastern and southern regions of the province via tick dragging, and conducted next generation sequencing of 19 samples (composed of 45 ticks) via Illumina MiSeq. A total of 1400469 sequences were detected (median 69118/sample; range 23350-155227). The most abundant families of bacteria were unclassified Clostridiales and Ruminococcaceae for both I. scapularis and D. variabilis. No significant differences in the relative abundances of any phylum, class, order, family or genus were detected between locations (east vs south), sex, life stage or tick species. There were no differences in community membership or structure based on unifrac and AMOVA analyses. Female and male ticks had lower microbial diversity when compared to nymphs, based on the Simpson's index and Shannon evenness index. The findings of our study differ from previous studies of these tick species conducted in other geographic areas, and highlight the potential role geography and related ecological factors may have in shaping the tick microbiota. PMID- 29042240 TI - Coxiella burnetii and Rickettsia conorii: Two zoonotic pathogens in peridomestic rodents and their ectoparasites in Nigeria. AB - Rodents are hosts of numerous pathogenic agents of public health importance globally. Their ability to harbor these pathogens without showing overt clinical signs of disease has epidemiologic consequences. In some rural settings in Nigeria, humans and rodents do not only share feeds and abode, but the latter may end up on the table of the former as a source of protein, thereby increasing the risks of disease transmission. Molecular assays were used to detect and characterize two agents of zoonotic importance, Coxiella burnetii and Rickettsia spp. in 194 peridomestic rodents captured in a peri-urban setting in Nigeria, and 32 pools of ectoparasites removed from them, to determine their possible role in the epidemiology of these diseases in this country. Targeting and characterizing the insertion sequence IS1111, C. burnetii DNA was detected in 4 out of 194 (2.1%) rodents comprising 3 out of 121 (2.5%) Rattus norvegicus and 1 out of 48 (2.1%) Rattus rattus screened in this study. Rickettsia spp. DNA was detected in two Rhipicephalus sanginueus sensu lato pools (i.e. RT1 and RT4) using the citrate synthase (gltA) gene and further characterized by amplification and sequence analysis of six genes to determine their identity. The RT1 sample consistently gave 98-100% identity to Rickettsia conorii str. Malish 7 for the various genes and loci studied. However, the identity of RT4 could not be definitively determined due to variable identities to different Rickettsia spp. according to the gene or loci under consideration. Further isolation study to determine if the RT4 characterized is a new variant or a mixture of sequences of different rickettsiae within the pool will be worthwhile. PMID- 29042241 TI - Randomized clinical study of wear of enamel antagonists against polished monolithic zirconia crowns. AB - OBJECTIVES: To test the hypothesis that there is no difference in the in vivo maximum wear of enamel opposing monolithic zirconia crowns, enamel opposing porcelain fused to metal crowns and enamel opposing enamel. METHODS: Thirty patients needing single crowns were randomized to receive either a monolithic zirconia or metal-ceramic crown. Two non-restored opposing teeth in the same quadrants were identified to serve as enamel controls. After cementation, quadrants were scanned for baseline data. Polyvinylsiloxane impressions were obtained and poured in white stone. Patients were recalled at six-months and one year for re-impression. Stone models were scanned using a tabletop laserscanner to determine maximum wear. Statistical analysis was performed using Mann-Whitney U to determine any significant differences between the wear of enamel against zirconia and metal-ceramic crowns. RESULTS: Sixteen zirconia and 14 metal-ceramic crowns were delivered. There were no statistical differences in mean wear of crown types (p=0.165); enamel antagonists (p=0.235) and enamel controls (p=0.843) after one year. CONCLUSION: Monolithic zirconia exhibited comparable wear of enamel compared with metal-ceramic crowns and control enamel after one year. SIGNIFICANCE: This study is clinically significant because the use of polished monolithic zirconia demonstrated comparable wear of opposing enamel to metal ceramic and enamel antagonists. PMID- 29042242 TI - Online Raman spectroscopy for structural biology on beamline ID29 of the ESRF. AB - Raman spectroscopy can probe the structure and conformations of specific chemical groups within proteins and may thus be used as a technique complementary to X-ray crystallography. This combined approach can be decisive in resolving ambiguities in the interpretation of enzymatic or X-ray induced processes. Here, we present an online Raman setup developed at the European Synchrotron that allows for interleaved Raman spectra acquisition and X-ray diffraction measurements with fast probe exchange and simple alignment while maintaining a high sensitivity over the entire spectral range. This device has been recently employed in the study of a covalent intermediate in the O2-dependent breakdown of uric acid by the cofactor-free enzyme urate oxidase and to monitor its decay induced by X-ray exposure. PMID- 29042243 TI - Extracellular self-DNA as a damage-associated molecular pattern (DAMP) that triggers self-specific immunity induction in plants. AB - Mammals sense self or non-self extracellular or extranuclear DNA fragments (hereinafter collectively termed eDNA) as indicators of injury or infection and respond with immunity. We hypothesised that eDNA acts as a damage-associated molecular pattern (DAMP) also in plants and that it contributes to self versus non-self discrimination. Treating plants and suspension-cultured cells of common bean (Phaseolus vulgaris) with fragmented self eDNA (obtained from other plants of the same species) induced early, immunity-related signalling responses such as H2O2 generation and MAPK activation, decreased the infection by a bacterial pathogen (Pseudomonas syringae) and increased an indirect defence to herbivores (extrafloral nectar secretion). By contrast, non-self DNA (obtained from lima bean, Phaseolus lunatus, and Acacia farnesiana) had significantly lower or no detectable effects. Only fragments below a size of 700 bp were active, and treating the eDNA preparation DNAse abolished its inducing effects, whereas treatment with RNAse or proteinase had no detectable effect. These findings indicate that DNA fragments, rather than small RNAs, single nucleotides or proteins, accounted for the observed effects. We suggest that eDNA functions a DAMP in plants and that plants discriminate self from non-self at a species specific level. The immune systems of plants and mammals share multiple central elements, but further work will be required to understand the mechanisms and the selective benefits of an immunity response that is triggered by eDNA in a species specific manner. PMID- 29042244 TI - Selectivity of coronaridine congeners at nicotinic acetylcholine receptors and inhibitory activity on mouse medial habenula. AB - The inhibitory activity of coronaridine congeners on human (h) alpha4beta2 and alpha7 nicotinic acetylcholine receptors (AChRs) is determined by Ca2+ influx assays, whereas their effects on neurons in the ventral inferior (VI) aspect of the mouse medial habenula (MHb) are determined by patch-clamp recordings. The Ca2+ influx results clearly establish that coronaridine congeners inhibit halpha3beta4 AChRs with higher selectivity compared to halpha4beta2 and halpha7 subtypes, and with the following potency sequence, for halpha4beta2: (+/-)-18 methoxycoronaridine [(+/-)-18-MC]>(+)-catharanthine>(+/-)-18 methylaminocoronaridine [(+/-)-18-MAC] ~ (+/-)-18-hydroxycoronaridine [(+/-)-18 HC]; and for halpha7: (+)-catharanthine>(+/-)-18-MC>(+/-)-18-HC>(+/-)-18-MAC. Interestingly, the inhibitory potency of (+)-catharanthine (27+/-4MUM) and (+/-) 18-MC (28+/-6MUM) on MHb (VI) neurons was lower than that observed on halpha3beta4 AChRs, suggesting that these compounds inhibit a variety of endogenous alpha3beta4* AChRs. In addition, the interaction of bupropion with (-) ibogaine sites on halpha3beta4 AChRs is tested by [3H]ibogaine competition binding experiments. The results indicate that bupropion binds to ibogaine sites at desensitized halpha3beta4 AChRs with 2-fold higher affinity than at resting receptors, suggesting that these compounds share the same binding sites. In conclusion, coronaridine congeners inhibit halpha3beta4 AChRs with higher selectivity compared to other AChRs, by interacting with the bupropion (luminal) site. Coronaridine congeners also inhibit alpha3beta4*AChRs expressed in MHb (VI) neurons, supporting the notion that these receptors are important endogenous targets for their anti-addictive activities. PMID- 29042245 TI - A natural language processing challenge for clinical records: Research Domains Criteria (RDoC) for psychiatry. PMID- 29042246 TI - Probabilistic broken-stick model: A regression algorithm for irregularly sampled data with application to eGFR. AB - In order for clinicians to manage disease progression and make effective decisions about drug dosage, treatment regimens or scheduling follow up appointments, it is necessary to be able to identify both short and long-term trends in repeated biomedical measurements. However, this is complicated by the fact that these measurements are irregularly sampled and influenced by both genuine physiological changes and external factors. In their current forms, existing regression algorithms often do not fulfil all of a clinician's requirements for identifying short-term (acute) events while still being able to identify long-term, chronic, trends in disease progression. Therefore, in order to balance both short term interpretability and long term flexibility, an extension to broken-stick regression models is proposed in order to make them more suitable for modelling clinical time series. The proposed probabilistic broken-stick model can robustly estimate both short-term and long-term trends simultaneously, while also accommodating the unequal length and irregularly sampled nature of clinical time series. Moreover, since the model is parametric and completely generative, its first derivative provides a long-term non-linear estimate of the annual rate of change in the measurements more reliably than linear regression. The benefits of the proposed model are illustrated using estimated glomerular filtration rate as a case study used to manage patients with chronic kidney disease. PMID- 29042247 TI - Murine genetic variance in muscarinic cholinergic receptor antagonism of sucrose and saccharin solution intakes in three inbred mouse strains. AB - Nutritive (e.g., sucrose) and non-nutritive (e.g., saccharin) sweeteners stimulate intake in inbred mouse strains. BALB/c, SWR and C57BL/6 mice differ in the ability of dopamine (DA) D1 (SCH23390) and opioid (naltrexone) receptor antagonism to alter sucrose intake. Whereas SCH23390 comparably reduced cumulative sucrose intake in all three strains, naltrexone reduced cumulative sucrose intake maximally in C57/BL/6 mice, in intermediate fashion in BALB/c mice, but not in SWR mice. Whereas cumulative saccharin intake was reduced by DA D1 receptor antagonism in BALB/c and SWR mice, naltrexone was more potent in SWR relative to BALB/c mice. The present study first examined whether SCH23390 (50 1600nmol/kg) and naltrexone (0.01-5mg/kg) altered saccharin intake in C57BL/6 mice. Given that scopolamine (SCOP), a muscarinic cholinergic receptor antagonist, reduces sweet intake in outbred rats, a second experiment examined whether SCOP (0.1-10mg/kg) altered 0.2% saccharin and 10% sucrose intakes in BALB/c, SWR and C57BL/6 mice. Cumulative saccharin intake was significantly reduced by SCH23390 (200-1600nmol/kg; ID40=175nmol/kg) and naltrexone (0.1 5mg/kg; ID40>5mg/kg) in C57BL/6 mice. Cumulative sucrose intake was significantly reduced following SCOP in C57BL/6 (0.1-10mg/kg; ID40=2.32mg/kg) and BALB/c (2.5 10mg/kg; ID40=0.52mg/kg) mice. In contrast, SWR mice (ID40=41.61mg/kg) only displayed transient (15min) reductions in sucrose intake following SCOP (2.5 10mg/kg). Cumulative saccharin intake was significantly reduced following SCOP in C57BL/6 and BALB/c mice (0.1-10mg/kg; ID40<0.1mg/kg). In contrast, SWR mice (ID40=2.28mg/kg) displayed smaller significant reductions in saccharin intake following SCOP (0.1-10mg/kg). These data indicate that although both nutritive and non-nutritive sweet intakes are governed by muscarinic cholinergic receptor signaling, this process is subject to murine genetic variance with greater sensitivity observed in C57BL/6 and BALB/c relative to SWR inbred mouse strains. PMID- 29042248 TI - The antidepressant- and anxiolytic-like effects of fluoxetine and clozapine in chronically isolated rats involve inhibition of hippocampal TNF-alpha. AB - Brain oxidative stress and neuroinflammation are implicated in psychiatric disorders. Thus, it is important to investigate the effects of individual psychotropic agents on antioxidative defense and proinflammatory mediators in brain regions associated with these disorders. Psychosocial stress is recognized as a threat to mental health, and the hippocampus is a primary target of stress related damage. Chronic social isolation (CSIS) is a mild psychosocial stress used to model the pathophysiology of depression. We examined the antioxidative and anti-inflammatory potential of the antidepressant fluoxetine (FLX) and atypical antipsychotic clozapine (CLZ) in the hippocampus in the CSIS model of depression. We measured the effects of FLX and CLZ on depressive- and anxiety like behaviors in non-stressed rats and rats exposed to 21d of CSIS. We further evaluated the content of reduced glutathione (GSH), the protein expression and activity of the GSH-related enzymes, the subcellular localization of nuclear factor-kappa B (NF-kappaB) and protein levels of proinflammatory mediators cyclooxygenase-2 (COX-2), interleukin-1beta (IL-1beta), and tumor necrosis factor alpha (TNF-alpha) in these groups of rats. CSIS resulted in an increase in depressive- and anxiety-like behaviors that corresponded with compromised glutathione peroxidase (GPx)-mediated antioxidative defense and increased TNF alpha, but not with changes in NF-kappaB, IL-1beta and COX-2 levels. FLX and CLZ, applied during CSIS, prevented the behavioral changes associated with CSIS, and inhibited the increase in TNF-alpha, but did not affect GPx-mediated antioxidative defense. Furthermore, both drugs decreased hippocampal GPx activity when applied to non-stressed rats. These results emphasize the significance of hippocampal TNF-alpha-mediated proinflammmatory signaling in the pathophysiology of depressive symptoms and the importance of the anti-inflammatory action of both FLX and CLZ in the prevention of these symptoms. PMID- 29042249 TI - Prevalence and biochemical risk factors of diabetic peripheral neuropathy with or without neuropathic pain in Taiwanese adults with type 2 diabetes mellitus. AB - AIMS: To investigate the prevalence and risk factors for diabetic peripheral neuropathy with or without neuropathic pain in Taiwanese. METHODS: A cross sectional, hospital-based observational study was conducted. We enrolled 2837 adults with type 2 diabetes mellitus. Diabetic peripheral neuropathy with or without pain were diagnosed using 2 validated screening tools, namely the Michigan Neuropathy Screening Instrument and Douleur Neuropathique 4 questionnaire. RESULTS: In our sample, 2233 participants had no neuropathy, 476 had diabetic peripheral neuropathy without pain, and 128 had diabetic peripheral neuropathy with neuropathic pain, representing an overall diabetic peripheral neuropathy prevalence of 21.3%, and the prevalence of neuropathic pain in diabetic peripheral neuropathy was 21.2%. Multivariate analysis revealed that older age (P<0.001), treatment with insulin (P=0.004), microalbuminuria (P=0.001) or overt proteinuria (P<0.001) were independently associated with diabetic peripheral neuropathy, whereas older age (P<0.001), elevated glycated haemoglobin (P=0.011), lower high-density lipoprotein cholesterol (P=0.033), and overt proteinuria (P<0.001) were independently associated with diabetic peripheral neuropathy with neuropathic pain. CONCLUSIONS: During clinical visits involving biochemical studies, the risk for diabetic peripheral neuropathy with neuropathic pain should be considered for people with older age, elevated glycated haemoglobin, low high-density lipoprotein cholesterol and overt proteinuria, with particular attention given to increased levels of albuminuria while concerning neuropathic pain. PMID- 29042250 TI - Eating breakfast and snacks while television viewing are associated with some cardio metabolic risk factors among Iranian children. AB - AIM: We aimed to investigate the association of eating meals while television viewing (TVV) and screen-based behaviors with cardio metabolic risk factors (CRFs) among school-aged children in Shiraz. MATERIALS AND METHODS: This cross sectional study was done on 409 primary school children (217 boys), aged 6-9 years. Physical activity, time spent on screen-based behaviors and frequency of eating meals while TVV were measured using a questionnaire. Anthropometric indices, fasting blood sugar (FBS), blood lipids, blood pressure (BP), dietary intakes and physical activity were assessed. Association of eating while TVV with CRFs were assessed using linear regression, adjusted for potential confounders. All statistical analysis were conducted using the Stata 13 software. RESULTS: Fully adjusted model showed that TVV time had significant positive association with waist circumferences (WC), and BP (p <0.05). Also, we found an inverse relationship between using Computer and Video games with TG level (beta=-0.3; CI: -0.64, -0.09). Children who ate two or more breakfast meal while TVV had higher WC (beta=2.02; CI: 0.51, 3.53) and FBS (beta=3.58; CI: 0.39, 6.78) compared to who never ate breakfast while TVV. After adjustment for Screen time and BMI, eating snacks while TVV was positively associated with FBS and systolic BP. However, Eating dinner and lunch while TVV were not significantly associated with any of CRFs after adjustment for confounders. CONCLUSIONS: We found that both eating breakfast and snacks while TVV were associated with WC, FBS and BP in children. Also, excessive TVV was associated with WC and BP. PMID- 29042251 TI - Effects of heparan sulfate proteoglycan syndecan-4 on the insulin secretory response in a mouse pancreatic beta-cell line, MIN6. AB - Heparan sulfate proteoglycans (HSPGs) comprise a core protein to which extracellular glycosaminoglycan chains are attached. Syndecan-4, one of the major HS-containing core proteins, is distributed on the cell surface, where they interact with various protein ligands and regulate a wide range of biological activities. Here, we propose that the core protein of HSPGs is involved in the insulin secretory response. To investigate the participation of HSPGs in the insulin-secretion mechanism, MIN6 cells, a mouse pancreatic beta-cell line, were subcloned. The subcloned MIN6 cells were selected based on their insulin secretory response, the expression of HS and core proteins. The results from these screening experiments indicated that only syndecan-4-expressing subclones are able to secrete insulin in response to glucose. Silencing of syndecan-4 reduced glucose-induced insulin secretion, whereas the overexpression of syndecan 4 increased the insulin secretory response. These data indicate that the HSPG syndecan-4 plays important role(s) in the insulin secretory response. PMID- 29042252 TI - The roles and applications of autoantibodies in progression, diagnosis, treatment and prognosis of human malignant tumours. AB - The existence of autoantibodies towards an individual's own proteins or nucleic acids has been established for more than 100years, and for a long period, these autoantibodies have been believed to be closely associated with autoimmune diseases. However, in recent years, researchers have become more interested in the role and application of autoantibodies in progression, diagnosis, treatment and prognosis of human malignant tumours. Over the past few decades, numerous epidemiological studies have shown that the risk of certain cancers is significantly altered (increased or decreased) in patients with autoimmune diseases, which suggests that autoantibodies may play either promoting or suppressing roles in cancer progression. The idea that autoantibodies are directly involved in tumour progression gains special support by the findings that some antibodies secreted by a variety of cancer cells can promote their proliferation and metastasis. Because the cancer cells generate cell antigenic changes (neoantigens), which trigger the immune system to produce autoantibodies, serum autoantibodies against tumour-associated antigens have been established as a novel type of cancer biomarkers and have been extensively studied in different types of cancer. The autoantibodies as biomarkers in cancer diagnosis are not only more sensitive and specific than antigens, but also could appear before clinical evidences of the tumours, thus disclosing them. The observations that cancer risk is lower in patients with some autoimmune diseases suggest that certain autoantibodies may be protective from certain cancers. Moreover, the presence of autoantibodies in healthy individuals implies that it could be safe to employ autoantibodies to treat cancer. Of note, an autoantibodies derived from lupus murine model received much attention due to their selective cytotoxicity for malignant tumour cell without harming normal ones. These studies showed the therapeutic value of autoantibodies in cancer. In this review, we revisited the pathological or protective role of autoantibodies in cancer progression, summarize the application of autoantibodies in cancer diagnosis and prognosis, and discuss the value of autoantibodies in cancer therapy. The studies established to date suggest that autoantibodies not only regulate cancer progression but also promise to be valuable instruments in oncological diagnosis and therapy. PMID- 29042253 TI - Calcium uptake and cytochrome c release from normal and ischemic brain mitochondria. AB - At abnormally elevated levels of intracellular Ca2+, mitochondrial Ca2+ uptake may compromise mitochondrial electron transport activities and trigger membrane permeability changes that allow for release of cytochrome c and other mitochondrial apoptotic proteins into the cytosol. In this study, a clinically relevant canine cardiac arrest model was used to assess the effects of global cerebral ischemia and reperfusion on mitochondrial Ca2+ uptake capacity, Ca2+ uptake-mediated inhibition of respiration, and Ca2+-induced cytochrome c release, as measured in vitro in a K+-based medium in the presence of Mg2+, ATP, and NADH linked oxidizable substrates. Maximum Ca2+ uptake by frontal cortex mitochondria was significantly lower following 10 min cardiac arrest compared to non-ischemic controls. Mitochondria from ischemic brains were also more sensitive to the respiratory inhibition associated with accumulation of large levels of Ca2+. Cytochrome c was released from brain mitochondria in vitro in a Ca2+-dose dependent manner and was more pronounced following both 10 min of ischemia alone and following 24 h reperfusion, in comparison to mitochondria from non-ischemic Shams. These effects of ischemia and reperfusion on brain mitochondria could compromise intracellular Ca2+ homeostasis, decrease aerobic and increase anaerobic cerebral energy metabolism, and potentiate the cytochrome c-dependent induction of apoptosis, when re-oxygenated mitochondria are exposed to abnormally high levels of intracellular Ca2+. PMID- 29042254 TI - Cardiac sodium channel antagonism - Translation of preclinical in vitro assays to clinical QRS prolongation. AB - INTRODUCTION: Cardiac sodium channel antagonists have historically been used to treat cardiac arrhythmias by preventing the reentry of the electrical impulse that could occur following myocardial damage. However, clinical studies have highlighted a significant increase in mortality associated with such treatment. Cardiac sodium channel antagonist activity is now seen as an off-target pharmacology that should be mitigated during the drug development process. The aim of this study was to examine the correlation between in vitro/ex vivo assays that are routinely used to measure Nav1.5 activity and determine the translatability of the individual assays to QRS prolongation in the clinic. METHODS: A set of clinical compounds with known Nav1.5 activity was profiled in several in vitro/ex vivo assays (binding, membrane potential, patch clamp and the Langendorff isolated heart). Clinical data comprising compound exposure levels and changes in QRS interval were obtained from the literature. Sensitivity/specificity analysis was performed with respect to the clinical outcome. RESULTS: The in vitro assays showed utility in predicting QRS prolongation in the clinic. Optimal thresholds were defined for each assay (binding: IC20; membrane potential: IC10; patch clamp: IC20) and sensitivity (69 88%) and specificity (53-84%) values were shown to be similar between assay formats. DISCUSSION: The data provide clear statistical insight into the translatability of Nav1.5 antagonism data generated in vitro to potential clinical outcomes. These results improve our ability to understand the liability posed by such activity in novel development compounds at an early stage. PMID- 29042255 TI - Comparison of RAW264.7, human whole blood and PBMC assays to screen for immunomodulators. AB - The RAW264.7 mouse macrophage cell line is used extensively to carry out in vitro screens for immunomodulators. Compounds that are effective at reducing the expression of pro-inflammatory cytokines or nitric oxide (NO) from lipopolysaccharide (LPS)-stimulated RAW264.7 cells are often considered candidate anti-inflammatory agents for humans. There is, however, very little data on the reliability of this screen to identify bona fide human immunomodulators. We compared the efficacy of 37 purported immunomodulators to modulate LPS or E. coli induced inflammatory responses in RAW264.7 cell, whole human blood and human peripheral blood mononuclear cell (PBMC) assays. Interestingly, there was no significant correlation (R=0.315) between the responses obtained with RAW264.7 cells and the whole blood assay (WBA), suggesting that compounds demonstrating efficacy in RAW264.7 cells may be ineffective in humans, and, more importantly, compounds that are effective in humans may be missed with a RAW264.7 screen. Interestingly, there was also no significant correlation between the WBA and human PBMCs when the latter were cultured with 10% FCS, but a moderate correlation was seen when the PBMCs were cultured with 25% autologous plasma. The presence of plasma thus contributes to the overall inflammatory response observed in the WBA. We then asked if RAW264.7 cells, given that they are mouse macrophage like cells, respond in a manner similar to primary murine derived macrophages. Intriguingly, there was no significant correlation (R=0.012) with the 37 putative immunomodulators, pointing to distinct inflammatory response mechanisms in the two model systems. We conclude that the use of a WBA to confirm potential immunomodulators obtained from high throughput screening with RAW264.7 cells is advisable and that future screens be carried out using a WBA. PMID- 29042256 TI - Antiseptic effects of dabrafenib on TGFBIp-induced septic responses. AB - Transforming growth factor-beta-induced protein (TGFBIp), an extracellular protein, is expressed on several cell types in response to TGF-beta stimulation. Human umbilical vein endothelial cell (HUVEC)-derived TGFBIp functions as a mediator of sepsis. Screening of bioactive compound libraries is an effective approach for repositioning FDA-approved drugs or discovering new treatments for human diseases (drug repositioning). Dabrafenib (DAB), a B-Raf inhibitor, was initially used for treating metastatic melanoma. The present study determined whether DAB modulated TGFBIp-mediated septic responses in HUVECs and in mice. Antiseptic functions of DAB were examined by measuring permeability, leukocyte adhesion and migration, and proinflammatory protein activation in TGFBIp stimulated HUVECs and mice. In addition, beneficial effects of DAB on survival rate were examined using a mouse model of sepsis. We found that DAB inhibited TGFBIp-induced vascular barrier disruption, cell adhesion molecule (CAM) expression, and neutrophil adhesion/transendothelial migration toward human endothelial cells. DAB also suppressed TGFBIp-induced hyperpermeability and leukocyte migration in vivo. These results suggest that DAB exerts anti inflammatory effects by inhibiting hyperpermeability, CAM expression, and leukocyte adhesion and migration, indicating its utility for treating vascular inflammatory diseases. PMID- 29042257 TI - In vivo pharmacokinetic interaction by ethanolic extract of Gymnema sylvestre with CYP2C9 (Tolbutamide), CYP3A4 (Amlodipine) and CYP1A2 (Phenacetin) in rats. AB - Gymnema sylvestre (GS) is a medicinal herb used for diabetes mellitus (DM). Herbs are gaining popularity as medicines in DM for its safety purpose. The aim of the present study was to evaluate in vivo pharmacokinetic (PK) interaction between allopathic drugs tolbutamide (TOLBU), amlodipine (AMLO), and phenacetin (PHENA) at low (L) and high (H) doses with ethanolic extract (EL) from GS. EL was extracted and subjected to TLC, total triterpenoid content (19.76 +/- 0.02 W/W) and sterol content (0.1837 +/- 0.0046 W/W) estimation followed by identification of phytoconstituents using HRLC-MS and GC-MS. PK interaction study with CYP2C9, CYP3A4 and CYP1A2 enzymes were assessed using TOLBU, AMLO and PHENA respectively to index cytochrome (CYP) mediated interaction in rats after concomitant administration of EL extract (400 mg/kg) from GS for 7 days. The rats were divided into four groups for each PK study where, group I and II were positive control for low and high dose of test drugs (CYP substrates) while group II and IV were orally administered EL. The PK study result of PHENA indicated that area under the plasma concentration-time curve (AUC0-24) was significantly (P < 0.0001) increased by 1.4 (L) and 1.3-fold (H), plasma concentration (Cmax) was significantly (P < 0.001) increased by 1.6 (L) and 1.4-fold (H). Whereas for TOLBU; clearance rate (CL) was significantly (P < 0.0001) decreased by 2.4 (L) and 2.3-fold (H), Cmax, was significantly (P < 0.001) decreased by 26.5% (L) and 50.4% (H) and AUC0-24 was significantly (P < 0.0001) decreased by 59.8% (L) and 57.5% (H). Thus, EL is seen to be interacting with CYP1A2 by inhibiting its metabolic activity. HRLC-MS and GC-MS helped identify the presence of gymnemic acid (GA), triterpenoids and steroids in EL which could be the reason for PK interaction of CYP1A2 and CYP2C9. Also, in silico structure based site of metabolism study showed Fe accessibility and intrinsic activity for GA-IV, GA-VI, GA-VII and GA-X with CYP2C9. PK parameters of AMLO were not significantly affected by pre-treatment of EL. Thereby our findings indicate that co administration of GS with drugs that are metabolized by CYP2C9 and CYP1A2 could lead to potential HDI. PMID- 29042258 TI - An open-source method to analyze optokinetic reflex responses in larval zebrafish. AB - BACKGROUND: Optokinetic reflex (OKR) responses provide a convenient means to evaluate oculomotor, integrative and afferent visual function in larval zebrafish models, which are commonly used to elucidate molecular mechanisms underlying development, disease and repair of the vertebrate nervous system. NEW METHOD: We developed an open-source MATLAB-based solution for automated quantitative analysis of OKR responses in larval zebrafish. The package includes applications to: (i) generate sinusoidally-transformed animated grating patterns suitable for projection onto a cylindrical screen to elicit the OKR; (ii) determine and record the angular orientations of the eyes in each frame of a video recording showing the OKR response; and (iii) analyze angular orientation data from the tracking program to yield a set of parameters that quantify essential elements of the OKR. The method can be employed without modification using the operating manual provided. In addition, annotated source code is included, allowing users to modify or adapt the software for other applications. RESULTS: We validated the algorithms and measured OKR responses in normal larval zebrafish, showing good agreement with published quantitative data, where available. COMPARISON WITH EXISTING METHOD(S): We provide the first open-source method to elicit and analyze the OKR in larval zebrafish. The wide range of parameters that are automatically quantified by our algorithms significantly expands the scope of quantitative analysis previously reported. CONCLUSIONS: Our method for quantifying OKR responses will be useful for numerous applications in neuroscience using the genetically- and chemically-tractable zebrafish model. PMID- 29042259 TI - Widespread optogenetic expression in macaque cortex obtained with MR-guided, convection enhanced delivery (CED) of AAV vector to the thalamus. AB - BACKGROUND: In non-human primate (NHP) optogenetics, infecting large cortical areas with viral vectors is often a difficult and time-consuming task. Previous work has shown that parenchymal delivery of adeno-associated virus (AAV) in the thalamus by convection-enhanced delivery (CED) can lead to large-scale transduction via axonal transport in distal areas including cortex. We used this approach to obtain widespread cortical expression of light-sensitive ion channels. NEW METHOD: AAV vectors co-expressing channelrhodopsin-2 (ChR2) and yellow fluorescent protein (YFP) genes were infused into thalamus of three rhesus macaques under MR-guided CED. After six to twelve weeks recovery, in vivo optical stimulation and single cell recording in the cortex was carried out using an optrode in anesthetized animals. Post-mortem immunostaining against YFP was used to estimate the distribution and level of expression of ChR2 in thalamus and cortex. RESULTS: Histological analysis revealed high levels of transduction in cortical layers. The patterns of expression were consistent with known thalamo cortico-thalamic circuits. Dense expression was seen in thalamocortiocal axonal fibers in layers III, IV and VI and in pyramidal neurons in layers V and VI, presumably corticothalamic neurons. In addition we obtained reliable in vivo light-evoked responses in cortical areas with high levels of expression. COMPARISON WITH EXISTING METHODS: Thalamic CED is very efficient in achieving large expressing areas in comparison to convectional techniques both in minimizing infusion time and in minimizing damage to the brain. CONCLUSION: MR guided CED infusion into thalamus provides a simplified approach to transduce large cortical areas by thalamo-cortico-thalamic projections in primate brain. PMID- 29042260 TI - PLDT (planarian light/dark test): an invertebrate assay to quantify defensive responding and study anxiety-like effects. AB - BACKGROUND: Planarians, like rodents, instinctively spend more time in dark versus light environments when given a choice. This behavioral phenomenon is called negative phototaxis, which may reflect defensive responding related to an anxiety-like phenotype. NEW METHOD: We propose a planarian light/dark test, designated PLDT, to predict anxiogenic- or anxiolytic-like effects. Experimentally, we placed a planarian at the midline of a Petri dish, containing test compound or water, that was split evenly into light and dark compartments and determined time spent in the light over 10min. RESULTS: A clinically-approved benzodiazepine agonist (clorazepate; 10MUM) increased time spent in the light whereas an inverse benzodiazepine agonist (FG-7142; 1, 10MUM) produced the opposite response. Fluoxetine (1MUM) or ethanol (1%), as well as the 'bath salt' cathinone S-mephedrone (300MUM), enhanced time spent in the light. Planarians exposed to predator (frog) odor spent more time in the dark. COMPARISON WITH EXISTING METHODS: The light/dark box (LDB) test in rodents is used to screen putative medications for possible anxiolytic and anxiogenic effects. Our results showing that time spent in the light by planarians is enhanced by common anxiety relieving drugs (e.g. benzodiazepine agonist, ethanol, fluoxetine) and decreased by anxiogenic substances (e.g. predator odor, benzodiazepine inverse agonist) reveal directionally similar effects in the established (LDB) and new (PLDT) assays. CONCLUSION: Our data identify the PLDT as a cost-effective, invertebrate assay for quantifying the effects of practically any water-soluble substance on defensive responding and for studying and teaching anxiety-like responses in a living organism. PMID- 29042261 TI - Biology of the introduced species Triatoma lecticularia (Hemiptera: Reduviidae) to northwestern Mexico, under laboratory conditions. AB - The first record of Triatoma lecticularia out of its reported distribution area together with the brief description of the said area is provided in this paper. In addition, some biological parameters related to hatching of eggs, life cycle and feeding and defecation behaviors for each instar of one population of T. lecticularia from its previously reported distribution area (PR) and for each instar of that introduced recently found population (IS) of this species were evaluated and compared. Twenty-eight specimens were collected from IS, mostly (64.29%) from peridomestic areas (mainly chicken coops). No significant (p>0.05) differences were recorded between the two studied cohorts in their average time to hatch, which was close to 19days. The median egg-to-adult development time, the number of blood meals at each nymphal, the instar mortality rates and median time-lapse for beginning of feeding were significantly (p<0.05) shorter for the IS cohort. Median feeding time was higher in PR. Defecation delay was shorter than 10min in both studied cohorts. Given these results, the introduced recently found population of T. lecticularia could be considered an important potential vector of Trypanosoma cruzi to human populations and could replace main triatomine species on its new distribution area. PMID- 29042262 TI - Molecular epidemiology and in vitro evidence suggest that Leishmania braziliensis strain helps determine antimony response among American tegumenary leishmaniasis patients. AB - Antimony is the first line drug for treating American tegumentary leishmaniasis (ATL) in Brazil. In this country, Leishmania braziliensis causes at least three distinct forms of disease: localized cutaneous (CL), mucosal (ML) and disseminated leishmaniasis (DL). All forms can be found in Corte de Pedra, Northeast Brazil. ML and DL respond poorly to antimony, in contrast to CL. The L. braziliensis population causing ATL in Corte de Pedra is genetically very diverse, with strains of the parasite associating with the clinical form of leishmaniasis. We tested the hypotheses that antimony refractoriness is associated with L. braziliensis genotypes, and that parasites from ML and DL present greater in vitro resistance to antimony than L. braziliensis from CL. Comparison of geographic coordinates of living sites between antimony responders and non-responders by Cusick and Edwards test showed that refractoriness and responsiveness to the drug were similarly wide spread in the region (p>0.05). Parasites were then genotyped by sequencing a locus starting at position 425,451 on chromosome 28, which is polymorphic among L. braziliensis of Corte de Pedra. Haplotype CC- in CHR28/425,451 was associated with risk of treatment failure among CL patients (Fishers exact test, p=0.03, odds ratio=4.65). This haplotype could not be found among parasites from ML or DL. Finally, sensitivity to antimony was evaluated exposing L. braziliensis promastigotes to increasing concentrations of meglumine antimoniate in vitro. Parasites from ML and DL were more resistant to antimony at doses of 2mg/100MUL and beyond than those isolated from CL (Fisher's exact test, p=0.02 and p=0.004, respectively). The intrinsically lower susceptibility of L. brazliensis from ML and DL to antimony parallels what is observed for patients' responsiveness in the field. This finding reinforces that ML and DL patients would benefit from initiating treatment with drugs currently considered as second line, like amphotericin B. PMID- 29042263 TI - Facility-Level Factors and Outcomes After Skilled Nursing Facility Admission for Trauma and Surgical Patients. AB - OBJECTIVE: Patients discharged to skilled nursing facilities (SNFs) have worse outcomes than those discharged to home, but whether this is due to differences in facility-level factors in addition to patient characteristics is not known. We aimed to determine whether SNF-level factors including nurse staffing and patient density are associated with outcomes after acute hospitalization for trauma or surgery. DESIGN, SETTING, PARTICIPANTS, AND MEASUREMENTS: Retrospective study of patients discharged to Medicare-certified SNFs after trauma or major surgery from 2007 to 2009. We measured the ratio of beds per nurse and the proportion of trauma and surgery patients at each facility (density). Outcomes were 1-year mortality, hospital readmission, and failure to discharge home at first discharge disposition. RESULTS: For 389,133 patients (mean age 78 years, 63% female) admitted to 3707 SNFs, mortality was 26%, hospital readmission 26%, and failure to discharge home 44%. After adjusting for patient-level factors, SNFs with fewer beds per nurse had lower odds of mortality [odds ratio (OR): trauma 0.84; (95% confidence interval: 0.77-0.91), surgery 0.80 (0.75-0.86)], readmission [OR: trauma 0.81 (0.74-0.88), surgery 0.71 (0.65-0.76)], and failure to discharge home [OR: trauma 0.82 [0.74-0.91], surgery 0.66 [0.60-0.72]). SNFs with greater density of specialty patients (>4.3% surgery, >14.1% trauma) had lower odds of readmission [OR: trauma 0.59 (0.53-0.66), surgery 0.62 (0.58-0.67)] and failure to discharge home [OR: trauma 0.48 (0.43-0.55), surgery 0.45 (0.42-0.49)]. CONCLUSIONS: There are modifiable SNF-level factors that influence long-term outcomes and may be targets for intervention. Staffing standardization and SNF specialization may reduce variation of quality in post-acute care. PMID- 29042264 TI - Association Between Sodium Excretion and Cardiovascular Disease and Mortality in the Elderly: A Cohort Study. AB - OBJECTIVE: High dietary sodium intake is a risk factor for cardiovascular events and death. Recently, a J-shaped correlation between sodium intake and adverse outcomes has been shown. The evidence on the association between sodium intake and cardiovascular outcomes in the elderly is scant. The objective of this study was to evaluate the correlation between sodium intake and cardiovascular events and mortality in an elderly population, taking into account frailty status. DESIGN: Cohort study of community dwelling older people enrolled in the InCHIANTI (Invecchiare in Chianti - Aging in the Chianti) study from 1998 to 2000 and followed-up for 9 years. SETTING: Two communities in Tuscany, Italy. PARTICIPANTS: A total of 920 participants 65 years of age and older, with 24-hour urinary sodium excretion data. MEASUREMENTS: Nine-year mortality and incident cardiovascular events were analyzed using Cox and nonlinear log-binomial models, stratified by frailty status. Sensitivity analysis in participants without hypertension and cardiovascular diseases was performed. RESULTS: Mean age of the population was 74.5 years (standard deviation 6.99); 55.4% were women. There was a bi-modal association between sodium excretion and mortality, with risk increasing only below sodium excretion of 6.25 g/d [hazard ratio (HR) 1.29, 95% confidence interval (CI) 1.20-1.38], confirmed in the adjusted model (HR 1.12, 95% CI 1.04-1.22). These results were confirmed in participants without cardiovascular diseases. After stratification for frailty phenotype, the association was stronger in frail participants (adjusted HR 1.23, 95% CI 1.02 1.50 vs HR 1.11, 95% CI 1.01-1.22 in robust participants). There was no association between 24-hour sodium excretion and 9-year incidence of cardiovascular diseases (adjusted risk ratio 0.96, 95% CI 0.90-1.02). CONCLUSIONS: Reduced sodium excretion is associated with increased mortality in a sample of community-dwelling older people, especially among the frail participants. High levels of sodium excretion are not associated with adverse outcomes in this population; therefore, sodium restriction might not be beneficial in older people. PMID- 29042265 TI - Preliminary Evidence of a Positive Effect of Occupational Therapy in Patients With Delirium Superimposed on Dementia. PMID- 29042266 TI - Development and Validation of the Symptom Assessment to Improve Symptom Control for Institutionalized Elderly Scale. AB - OBJECTIVES: To validate a newly developed multiple symptom self-assessment tool in nursing homes. DESIGN: Thirty prevalent symptoms identified in the literature were classified by a 2-round Delphi procedure to a top 10 of the most relevant, burdensome symptoms. Because no existing symptom scale fully covered this top 10, we developed a new scale, consisting of a horizontal numerical scale for the top 10 symptoms, with the possibility to add and rate 3 other symptoms. This scale was validated. SETTING AND PARTICIPANTS: Hundred seventy-four participants, mean age 85 (+/-5.94) years, were recruited from 7 nursing homes (86%) and 3 acute geriatric wards (14%). METHODS: To test the construct validity, participants with and without a palliative status were enrolled. Participants completed the Symptom Assessment to Improve Symptom Control for Institutionalized Elderly (SATISFIE) scale on day 0 and day 1 (intrarater reliability). Nurses completed the scale on day 0 (inter-rater reliability). Descriptive statistics described the characteristics of the study population and symptom scores. Differences in symptom scores between palliative and nonpalliative participants were analyzed with the Mann-Whitney U test. Intrarater and inter-rater reliability were calculated by means of an intraclass correlation coefficient. Factor analysis searched for possible symptom clusters. Feasibility was evaluated by measuring the assessment time and by providing a questionnaire for the nurses. RESULTS: In the nonpalliative group (n = 130), the highest self-rated median scores were pain on day 1 [median 3, interquartile range (IQR) 0-5] and pain on day 2. In the palliative group (n = 44), the highest median self-rated scores were fatigue on day 1 [median 5 (IQR 0-6)], lack of energy on day 1 and 2 [both median 5 (IQR 0 8)]; and depressed feeling on day 2 [median 3 (IQR 0-5)]. Nurse assessments median scores were the highest for depressed feeling [median 5 (IQR 1-7)], fatigue [median 4.5 (IQR 0-6.5)], and lack of energy, [median 3 (IQR 0-6)] in the palliative group. In the nonpalliative group, none of the median scores was 3 or more. Intraclass correlation coefficients for intrarater reliability varied between 0.65 and 0.89 and for inter-rater reliability (patients-nurses) between 0.18 and 0.63. Mean assessment time for nurses was 2.0 minutes [standard deviation (SD) = 1.01]. For participants, it decreased from 10.5 minutes (SD = 5.41) at the first assessment to 7.5 minutes (SD = 3.72) at the second assessment. Nurses determined the SATISFIE instrument to be useful, applicable in daily practice, and sufficiently comprehensible for the patients. CONCLUSIONS: The SATISFIE scale is a valid and feasible instrument for regular, multiple symptom assessment in institutionalized older persons. PMID- 29042267 TI - Initiating pain in osteoarthritis (OA): is it the mast cell? PMID- 29042268 TI - Rice Information GateWay: A Comprehensive Bioinformatics Platform for Indica Rice Genomes. PMID- 29042269 TI - The comparison of acute high-intensity interval exercise vs. continuous moderate intensity exercise on plasma calprotectin and associated inflammatory mediators. AB - PURPOSE: Calprotectin promotes the release of inflammatory mediators (e.g., monocyte chemoattractant protein-1 [MCP-1] and myeloperoxidase [MPO]) during the innate immune response as a mechanism to augment leukocyte chemotaxis and phagocytosis. Although plasma calprotectin is elevated with traditional continuous moderate-intensity exercise (CME) as an indicator of the inflammatory response, high-intensity interval exercise (HIIE) has been shown to attenuate systemic inflammation while providing similar improvements in cardiovascular health. Therefore, the purpose of this study was to compare plasma levels of calprotectin, MCP-1, and MPO between acute HIIE vs. CME. METHODS: Nine healthy males (24.67+/-3.27yrs) were recruited to participate in HIIE and CME on a cycle ergometer. HIIE consisted of 10 repeated 60s of cycling at 90% max watts (Wmax) separated by 2min of active recovery intensity of interval exercise, whereas CME consisted of 28min of cycling at 60% Wmax. Blood samples were collected prior to, immediately post, and 30 and 60min into recovery following exercise. RESULTS: Acute HIIE elicited a lower elevation in calprotectin and MPO compared to CME. An increase in MCP-1 was observed across time in both exercise protocols. Furthermore, our analyses did not reveal any significant correlation in percent change (baseline to immediately following exercise) among calprotectin, MCP1, and MPO in neither HIIE nor CME. However, a significant positive correlation was observed in the overall release of calprotectin and MPO across all four time points in both HIIE and CME. Conclusions Our findings indicate that acute HIIE may potentially diminish the systemic release of inflammatory mediators (calprotectin and MPO) compared to CME. PMID- 29042270 TI - Regression of Paraneoplastic Rash after Lung Cancer Chemotherapy. PMID- 29042271 TI - Blockade of the orexin receptors in the CA1 region of hippocampus decreased the lateral hypothalamic-induced antinociceptive responses in the model of orofacial formalin test in the rats. AB - The role of hippocampus and lateral hypothalamus (LH) in modulation of formalin induced nociception has been established. The present study aims to examine the role of orexin receptors in the Cornu Ammonis 1 (CA1) region of hippocampus in modulation of the LH-induced antinociception in the orofacial formalin test. Male Wistar rats were unilaterally implanted with two cannulae into the LH and CA1. Intra-LH microinjection of carbachol was done 5min after intra-CA1 administration of SB-334867 (OX1R antagonist) or TCS OX2 29 (OX2R antagonist). After 5min, 50MUl of 1% formalin was subcutaneously injected into the upper lip for inducing the nociceptive behaviors. Solely intra-LH administration of carbachol reduced early and late phases of formalin-induced orofacial nociception in a dose-dependent manner. The antinociception evoked by intra-LH injection of carbachol (0.5MUl of 250nM carbachol) was antagonized by intra-CA1 administration of 0.5MUl of 3, 10 and 30nM solutions of SB-334867 or TCS OX2 29 during the early and late phases of orofacial formalin test. This effect was more remarkable during the late phase in comparison to the early phase. In addition, anti-analgesic effect of SB-334867 was more than TCS OX2 29 during the early and late phases. The results suggest the interpretation that a neural pathway from the LH to the CA1 probably contributes to the modulation of formalin-induced orofacial nociception through recruitment of both CA1 orexin receptors. Clinical studies are recommended to study the probable effectiveness of orexinergic system in modulation of the orofacial nociceptive responses. PMID- 29042273 TI - Leptomyxa valladaresi n. sp. (Amoebozoa, Tubulinea, Leptomyxida), from Mount Teide, Tenerife, Spain. AB - Leptomyxa valladaresi was isolated from soil in a pine forest on the southern flank of Mt Teide in Tenerife, Spain. It feeds on bacteria and on a range of other amoebae, and it was possible to establish bi-axenic cultures with L. valladaresi and Acanthamoeba. It is easily propagated on a E. coli also. 18S rDNA gene sequence analysis suggests that it is most closely related to Leptomyxa variabilis, however this amoeba differs in important detail. L. valladaresi is primarily mononucleate whereas L. variabilis is multinucleate. L. valladaresi is a larger amoeba and although the cysts are similar in size, there is no sign of the pore-like structures described in L. variabilis cysts. L. valladaresi can adopt a rapid monopodal and tubular morphology similar to that described for L. neglecta and Rhizamoeba matisi, and is never reticulated as larger L. variabilis individuals tend to be. The mean generation time was found to be 18 h, in line with amoebae of this size. Like other members of the genus, L. valladaresi is reported to harbour intracellular, presumably endosymbiotic bacteria, and a Delftia sp has been identified by 16S PCR a bacterium which is also known to grow within Acanthamoeba. The availability of this easily cultured species will help to characterize of this little studied genus and family and their relationship with bacteria, both prey and symbionts. PMID- 29042274 TI - Study of cellulose nanocrystal doped starch-polyvinyl alcohol bionanocomposite films. AB - We prepared biodegradable nanocomposites from plasticized starch-polyvinyl alcohol (PS-PVA) composite incorporated with cellulose nanocrystals (CNC). The nanocomposite films were characterized by mechanical, thermal, and barrier analyses as well as atomic force microscopy (AFM). The geometrical characteristics of the CNC confirmed that the thickness of CNC was less than 100nm. The generated nanocomposites exhibited an improvement in mechanical and barrier properties. The films showed decrease in solubility, water absorption, water vapor permeability (WVP), and strain at break (SB). However, contact angle, ultimate tensile strength (UTS), glass transition temperature (Tg) and melting point (Tm) increased after addition of CNC. The results suggest that as a green reinforcement for elaboration of biodegradable packaging, CNC is a good replacement for mineral reinforcement such as silicates. PMID- 29042272 TI - Effects of dietary nitrate on respiratory physiology at high altitude - Results from the Xtreme Alps study. AB - Nitric oxide (NO) production plays a central role in conferring tolerance to hypoxia. Tibetan highlanders, successful high-altitude dwellers for millennia, have higher circulating nitrate and exhaled NO (ENO) levels than native lowlanders. Since nitrate itself can reduce the oxygen cost of exercise in normoxia it may confer additional benefits at high altitude. Xtreme Alps was a double-blinded randomised placebo-controlled trial to investigate how dietary nitrate supplementation affects physiological responses to hypoxia in 28 healthy adult volunteers resident at 4559 m for 1 week; 14 receiving a beetroot-based high-nitrate supplement and 14 receiving a low-nitrate 'placebo' of matching appearance/taste. ENO, vital signs and acute mountain sickness (AMS) severity were recorded at sea level (SL) and daily at altitude. Moreover, standard spirometric values were recorded, and saliva and exhaled breath condensate (EBC) collected. There was no significant difference in resting cardiorespiratory variables, peripheral oxygen saturation or AMS score with nitrate supplementation at SL or altitude. Median ENO levels increased from 1.5/3.0 mPa at SL, to 3.5/7.4 mPa after 5 days at altitude (D5) in the low and high-nitrate groups, respectively (p = 0.02). EBC nitrite also rose significantly with dietary nitrate (p = 0.004), 1.7-5.1 MUM at SL and 1.6-6.3 MUM at D5, and this rise appeared to be associated with increased levels of ENO. However, no significant changes occurred to levels of EBC nitrate or nitrosation products (RXNO). Median salivary nitrite/nitrate concentrations increased from 56.5/786 MUM to 333/5,194 MUM with nitrate supplementation at SL, and changed to 85.6/641 MUM and 341/4,553 MUM on D5. Salivary RXNO rose markedly with treatment at SL from 0.55 MUM to 5.70 MUM. At D5 placebo salivary RXNO had increased to 1.90 MUM whilst treatment RXNO decreased to 3.26 MUM. There was no association with changes in any observation variables or AMS score. In conclusion, dietary nitrate supplementation is well tolerated at altitude and significantly increases pulmonary NO availability and both salivary and EBC NO metabolite concentrations. Surprisingly, this is not associated with changes in hemodynamics, oxygen saturation or AMS development. PMID- 29042275 TI - Basil polysaccharide attenuates hepatocellular carcinoma metastasis in rat by suppressing H3K9me2 histone methylation under hepatic artery ligation-induced hypoxia. AB - Hepatocellular carcinoma (HCC) is one of the most common and fatal cancers in the world. Tumor metastasis is an important factor of poor prognosis in patients with HCC. Tumor hypoxia can promote tumor cell metastasis in HCC. Epigenetic modification is closely related to tumor hypoxia and metastasis. In our previous research, we found that basil polysaccharide suppressed migration and invasion of HCC cell by inhibiting hypoxia induced histone methylation in vitro. In the present study, we investigated the effect of basil polysaccharide on the walker 256 carcinoma cell metastasis in rat. We established an intratumoral hypoxic model in rat by hepatic artery ligation (HAL). Then rats were treated with basil polysaccharide (75, 150 and 300mg/kg). The results showed that HAL could promote tumor metastasis by aggravating tumor hypoxia. However, basil polysaccharide could inhibit tumor metastasis in intratumoral hypoxia. Further, we demonstrated that basil polysaccharide could down-regulate the expression of HIF-1alpha, G9a, LSD1, JMJD1A, JMJD2B, JARID1B and H3K9me2. Synchronously, basil polysaccharide could increase E-cadherin and VMP1 expression, and decrease N-cadherin, vimentin and beta-catenin expression. The results indicated that histone modifying enzymes might be a new therapeutic target of basil polysaccharide on hepatocellular carcinoma metastasis. PMID- 29042276 TI - Heterologous expression of an engineered protein domain acts as chaperone and enhances thermotolerance of Escherichia coli. AB - Heat shock proteins (HSPs) are known to confer protection to the stressed cells by rescuing vital host cell proteins. In the present study we have demonstrated that heterologous expression of N-terminal domain of hyperthermophilic L asparaginase (NPfA) confers thermotolerance to E. coli. The recombinant expression of NPfA enabled E. coli to demonstrate typical growth behavior at 52 degrees C and survive a thermal shock up to 62 degrees C, both being the highest reported temperatures for growth and heat shock survival. To understand the basis of protection proteome analysis of these cells was carried out which showed that NPfA guards a battery of proteins, especially related to gene regulations and repair, providing definite survival advantage to the stressed cells. Thus NPfA a non-canonical, non-natural chaperone has been shown to render E. coli cells with selective growth advantage under extremes of conditions. We propose that such modified, heat stabilized hosts could be utilized in developing heat-induced expression systems as well for the recombinant expression of thermophilic proteins. PMID- 29042277 TI - MiR-455-3p activates Nrf2/ARE signaling via HDAC2 and protects osteoblasts from oxidative stress. AB - BACKGROUND: The important role of miR-455-3p in the pathogenesis of bone metabolism associated diseases is gradually emerging. This study aims to ascertain the involvement of miR-455-3p and its underlying mechanisms in osteoporosis. METHODS: The osteoblast cell lines MC3T3-E1 was treated with ferric ammonium citrate (FAC) to mimic a pathological environment for osteoporosis. The cytotoxic effect of iron overload was assessed by proliferation, apoptosis and oxidative stress of osteoblasts using commercial kits. Molecular biological methods, including qRT-PCR analysis, cell transfection and luciferase reporter assays were used to explain the role of miR-455-3p and its potential mechanisms in osteoblast apoptosis. RESULTS: FAC dramatically inhibited the proliferation of osteoblast cells MC3T3-E1 but increased the apoptosis. We also observed that FAC significantly down-regulated miR-455-3p in MC3T3-E1 cells but enhanced HDAC2 protein level. Moreover, miR-455-3p overexpression eliminated the effects of iron overload on osteoblast cell proliferation, apoptosis and oxidative stress. In addition, miR-455-3p regulated osteoblast cell proliferation, apoptosis and oxidative stress through regulating HDAC2-Nrf2/ARE signaling pathway. MiR-455-3p overexpression alleviated the oxidative stress injury in osteoporosis mice. CONCLUSION: Our results demonstrated that miR-455-3p activated Nrf2/ARE signal pathway through suppressing Keap1 via negative regulating HDAC2 protein level, thereby suppressing oxidative stress and promoting osteoblasts growth. PMID- 29042278 TI - A ribonuclease inhibitor resistant dimer of human pancreatic ribonuclease displays specific antitumor activity. AB - Human pancreatic ribonuclease (HPR) and bovine seminal ribonuclease (BS-RNase) are members of the RNase A superfamily. HPR is monomeric, whereas BS-RNase is dimeric. BS-RNase has strong antitumor and cytotoxic activities. However, HPR lacks cytotoxic activity as it is inactivated by intracellular cytosolic ribonuclease inhibitor (RI). Earlier, an RI-resistant cytotoxic variant of HPR, termed HPR-KNE was generated which contained three residues Lys7, Asn71 and Glu111 of HPR, known to interact with RI, mutated to alanine. In this study, we have engineered HPR to develop two dimeric RI-resistant molecules having anti tumor activity. By incorporating two cysteines in HPR and HPR-KNE, we generated disulfide linked dimeric HPR, and a dimer of HPR-KNE, termed as HPR-D and HPR-KNE D respectively. HPR-KNE-D was resistant towards inhibition by RI, and was found to be highly toxic to a variety of cells. On J774A.1 cells HPR-KNE-D was >375 fold more cytotoxic than HPR, and 15-fold more toxic than HPR-D. Further, on U373 cells HPR-KNE-D was >65-fold more cytotoxic than HPR, and 9-fold more toxic than HPR-D. The study demonstrates that combining dimerization and RI-resistance results in providing potent anti-tumor activity to HPR. The cytotoxic variants of HPR will be useful in designing protein therapeutics with low immunogenicity. PMID- 29042279 TI - Long circulating PEGylated-chitosan nanoparticles of rosuvastatin calcium: Development and in vitro and in vivo evaluations. AB - The aim of this study was to improve the pharmacokinetics and pharmacodynamics profile of rosuvastatin calcium by formulating long-circulating PEGylated chitosan nanoparticles (NPs). Chitosan was PEGylated by a carbodiimide mediated reaction, using a carboxylic acid derivative of PEG (polyethylene glycol). The NPs were optimised for particle size, polydispersity index, zeta potential and drug entrapment efficiency. In vitro drug release, pharmacokinetic and pharmacodynamics studies of the optimized nanoparticles were performed. PEGylation of chitosan was confirmed by FTIR analysis. Drug-excipient compatibility was studied by differential scanning calorimetry and FTIR analyses. Two batches of nanoparticles were optimized with particle size of <200nm and entrapment efficiency of ~14%. In vitro drug release studies revealed cumulative release of 14.07+/-0.57% and 22.02+/-0.81% of rosuvastatin over the period of 120h, indicating appreciable sustained release of drug. TEM analysis showed the spherical structure of nanoparticles. Pharmacokinetic studies indicated that optimized NPs showed prolonged drug release over a period of 72h. Pharmacodynamics studies in hyperlipidemic rat model demonstrated greater lipid lowering capability of rosuvastatin nanoparticles in comparison with plain rosuvastatin. The nanoparticles demonstrated substantial prolonged delivery of the drug in vivo along with better therapeutic action, which could be potential drug delivery modality for 'statins'. PMID- 29042280 TI - Biochemical and biophysical characterization of a mycoredoxin protein glutaredoxin A1 from Corynebacterium pseudotuberculosis. AB - Glutaredoxin A1 from Corynebacterium pseudotuberculosis was shown to be a mycoredoxin protein. In this study, we established a process to overexpress and purify glutaredoxin A1. The aim of this study was the investigation of the Glutaredoxin A1 from C. pseudotuberculosis behavior under different redox environments and the identification of lead molecules, which can be used for specific inhibitor development for this protein family. A quantitative assay was performed measuring the rate of insulin reduction spectrophotometrically at 640nm through turbidity formation from the precipitation of the free insulin. Glutaredoxin A1, at 5MUM concentration, accelerated the reduction process of 0.2mM insulin and 1mM DTT. The pH optimum of the reaction was 7.4. In the presence of DTT and ESH the glutaredoxin A1 presents similar activity, and its activity is reduced by 50% in the presence of GSH. Additional function for ESH in the redox metabolism of C. pseudotuberculosis is suggested. A combined STD and Chemical Shift - NMR approach was employed to study the effects of potential inhibitors on the structure of glutaredoxin A1 from Corynebacterium pseudotuberculosis. The inhibitory potential of four ligands (heparin, suramin, hesperetin - Hst, and hesperidin - Hsp) against glutaredoxin A1 is discussed. PMID- 29042281 TI - Effects of polysaccharides from the base of Flammulina Velutipes stipe on growth of murine RAW264.7, B16F10 and L929 cells. AB - A polysaccharide (FVSP) was isolated from the base of Flammuliana Velutipes stipe, and FVSP was further purified by DEAE-cellulose-52 chromatography and Sephadex G-100 size-exclusion chromatography to obtain three fractions named FVSP 1, FVSP-2 and FVSP-3. Then their activation of macrophage cell RAW 264.7 and anti proliferative effects to the murine melanoma B16F10 and fibroblasts L929 cells were evaluated by using the cell model experiments. The results indicated that the polysaccharide fractions could increase the proliferation and phagocytic activity of macrophage significantly and play an inhibited effect on the cancer cells. Moreover, the anti-proliferative activities of FVSPs increased with the participation of the antitumor factors induced from macrophage by polysaccharides fractions. Taken together, these results indicated that three polysaccharides fractions from the base of F. Velutipes stipe may be useful as potent antitumor agents for the prevention of tumorigenesis. PMID- 29042282 TI - Increased levels of circulating (TNF-alpha) is associated with (-308G/A) promoter polymorphism of TNF-alpha gene in Diabetic Nephropathy. AB - The crucial role of Tumor Necrosis Factor-alpha (TNF-alpha) on renal function in patients with Diabetic Nephropathy (DN) has been well documented. The present study was designed to investigate the association of TNF-alpha [-308G/A, (rs1800629)] single nucleotide polymorphism (SNP) on the susceptibility to DN subjects and to correlate it with the plasma levels of TNF-alpha along with circulatory TNF-alpha receptor super family cytokines (sTNFR-1 and sTNFR-2). A total of 756 subjects, were recruited and divided into groups [Group-I, Control (n=218), Group-II, Normoalbuminuria (n=196), Group-IIIa, Microalbuminuria (n=178), Group-IIIb, Macroalbuminuria (n=164)] and were genotyped by PCR restriction fragment length polymorphism (RFLP). Circulatory levels of TNF-alpha and sTNFR-1 & sTNFR-2 were measured using multiplex bead based assay. The 'A' allele of TNF-alpha (-308 G/A) SNP was associated with a significant risk for macroalbuminuria subjects (OR: 2.1; 95% CI: 0.8-3.7; P<0.001). A marked stepwise increase was observed in the levels of circulatory biomarkers such as TNF-alpha, sTNF-R1 and sTNF-R2 from normo to macroalbuminuria subjects. In DN subjects, the TNF-alpha level was higher in individuals who had mutant AA, than the wild GG genotype of TNF-alpha gene. Our results conclude that rs1800629 polymorphism in TNF-alpha gene is associated with renal complications in T2DM subjects. PMID- 29042283 TI - The PR-1 domain accounts for the anti-angiogenic activity of a cysteine-rich secretory protein member from the buccal glands of Lampetra japonica. AB - Previous studies have shown that cysteine-rich buccal gland protein (CRBGP) from buccal glands of Lampetra japonica could suppress angiogenesis in chick chorioallantoic membrane models. As CRBGP is composed of a pathogenesis-related group 1 (PR-1) domain and a cysteine-rich domain (CRD), which domain accounts for the effects of CRBGP on anti-angiogenesis? In the present study, recombinant PR-1 and CRD (rL-PR-1 and rL-CRD) were obtained. MTT assays showed rL-PR-1 inhibited the proliferation of HUVECs significantly in a dose-dependent manner with an IC50 of 2MUM, while rL-CRD had no obviously inhibitory effect on the proliferation of HUVECs, suggested that PR-1 is the main function domain on the anti-angiogenic activity of CRBGP. Similar to CRBGP, rL-PR-1 induced apoptosis in HUVECs in a mitochondrial-dependent pathway by affecting the level of BAX, BCL2 and caspase 3. Also, the cytotoxic property of rL-PR-1 might be one of the factors which suppressed the proliferation of HUVECs. Furthermore, rL-PR-1 blocked the adhesion, migration, invasion and tube formation of HUVECs by disturbing the cytoskeleton arrangement and down-regulating the level of matrix metallo peptidase 2. In summary, rL-PR-1 has the anti-angiogenic activity which would provide the information on the functions and mechanisms of cysteine-rich secretory protein family members. PMID- 29042284 TI - The synergism and attenuation effect of Selenium (Se)-enriched Grifola frondosa (Se)-polysaccharide on 5-Fluorouracil (5-Fu) in Heps-bearing mice. AB - Previous study revealed that Se-GP11 could exhibited its antitumor activity by improving the immune functions. 5-Fu, as a chemotherapeutic drugs, can kill many immune cells in addition to tumor cells. Accordingly, the enhanced antitumor and reduced toxicity of Se-GP11 on 5-Fu were estimated in this study. The results demonstrated that Se-GP11 could evidently increase the antitumor activity of 5 Fu. Furthermore, Se-GP11 could enhance the immune functions during the tumor inhibition process of 5-Fu for increasing the cytokines secretion (IL-2 and TNF alpha) and immune organs weights. In addition, Se-GP11 could reduce the toxicity of 5-Fu on liver by improving the hematological and biochemical parameters and up regulating the SOD activities and down-regulating the MDA levels. Taken together, the results indicated that Se-GP11 may develop as an auxiliary preparation to chemical antitumor drugs. PMID- 29042287 TI - The genus Lycium as food and medicine: A botanical, ethnobotanical and historical review. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Lycium is widely distributed in the arid to semi arid environments of North and South America, Africa, and Eurasia. In recent years, Lycium barbarum and L. chinense have been advertised as "superfood" with healthy properties. Despite of its popularity, there is a lack of an integrated and critical appraisal of the existing evidence for the use of Lycium. AIM OF THE STUDY: There is a need to understand: 1) Which species were used and how the uses of Lycium developed spatially and over time, 2) how uses differ among regions with different culture backgrounds, and 3) how traditional and current therapeutic and preventive health claims correlate with pharmacological findings. METHODS: Information was retrieved from floras, taxonomic, botanical, and ethnobotanical databases, research articles, recent editions of historical Chinese herbals over the last 2000 years, and pharmacopoeias. RESULTS: Of totally 97 species, 31 have recorded uses as food and/or medicine worldwide. Usually the fruits are used. While 85% of the Lycium species occur in the Americas and Africa, 26% of them are used, but 9 out of 14 species in Eurasia. In China, seven species and two varieties of the genus Lycium occur, of which four species have been used by different ethnic groups. Only L. barbarum and L. chinense have been transformed into globally traded commodities. In China, based on the name "", their use can be traced back over the last two millennia. Lycium fruits for anti aging, improving eyesight and nourishment were documented already in 500C.E. (Mingyi Bielu). Recent findings explain the pharmacological foundations of the traditional uses. Especially polysaccharides, zeaxanthin dipalmitate, vitamins, betaine, and mixed extracts were reported to be responsible for anti-aging, improving eyesight, and anti-fatigue effects. CONCLUSIONS: The integration of historical, ethnobotanical, botanical, phytochemical and pharmacological data has enabled a detailed understanding of Lycium and its wider potential. It highlights that the focus so far has only been on two species and that the genus can potentially yield a wide range of other products with different properties. PMID- 29042285 TI - Regulating the regulators: Epigenetic, transcriptional, and post-translational regulation of RGS proteins. AB - Regulators of G protein signaling (RGS) are a family of proteins classically known to accelerate the intrinsic GTPase activity of G proteins, which results in accelerated inactivation of heterotrimeric G proteins and inhibition of G protein coupled receptor signaling. RGS proteins play major roles in essential cellular processes, and dysregulation of RGS protein expression is implicated in multiple diseases, including cancer, cardiovascular and neurodegenerative diseases. The expression of RGS proteins is highly dynamic and is regulated by epigenetic, transcriptional and post-translational mechanisms. This review summarizes studies that report dysregulation of RGS protein expression in disease states, and presents examples of drugs that regulate RGS protein expression. Additionally, this review discusses, in detail, the transcriptional and post-transcriptional mechanisms regulating RGS protein expression, and further assesses the therapeutic potential of targeting these mechanisms. Understanding the molecular mechanisms controlling the expression of RGS proteins is essential for the development of therapeutics that indirectly modulate G protein signaling by regulating expression of RGS proteins. PMID- 29042286 TI - Protein kinase- and lipase inhibitors of inositide metabolism deplete IP7 indirectly in pancreatic beta-cells: Off-target effects on cellular bioenergetics and direct effects on IP6K activity. AB - Inositol pyrophosphates have emerged as important regulators of many critical cellular processes from vesicle trafficking and cytoskeletal rearrangement to telomere length regulation and apoptosis. We have previously demonstrated that 5 di-phosphoinositol pentakisphosphate, IP7, is at a high level in pancreatic beta cells and is important for insulin exocytosis. To better understand IP7 regulation in beta-cells, we used an insulin secreting cell line, HIT-T15, to screen a number of different pharmacological inhibitors of inositide metabolism for their impact on cellular IP7. Although the inhibitors have diverse targets, they all perturbed IP7 levels. This made us suspicious that indirect, off-target effects of the inhibitors could be involved. It is known that IP7 levels are decreased by metabolic poisons. The fact that the inositol hexakisphosphate kinases (IP6Ks) have a high Km for ATP makes IP7 synthesis potentially vulnerable to ATP depletion. Furthermore, many kinase inhibitors are targeted to the ATP binding site of kinases, but given the similarity of such sites, high specificity is difficult to achieve. Here, we show that IP7 concentrations in HIT-T15 cells were reduced by inhibitors of PI3K (wortmannin, LY294002), PI4K (Phenylarsine Oxide, PAO), PLC (U73122) and the insulin receptor (HNMPA). Each of these inhibitors also decreased the ATP/ADP ratio. Thus reagents that compromise energy metabolism reduce IP7 indirectly. Additionally, PAO, U73122 and LY294002 also directly inhibited the activity of purified IP6K. These data are of particular concern for those studying signal transduction in pancreatic beta-cells, but also highlight the fact that employment of these inhibitors could have erroneously suggested the involvement of key signal transduction pathways in various cellular processes. Conversely, IP7's role in cellular signal transduction is likely to have been underestimated. PMID- 29042289 TI - Current evidence on the effect of dietary polyphenols intake on chronic diseases. AB - Polyphenols are secondary metabolites of plants. They comprise several antioxidant compounds and they are generally considered to be involved in the defense against human chronic diseases. During the last years, there has been growing scientific interest in their potential health benefits. In this comprehensive review, we focus on the current evidence defining the position of their dietary intake in the prevention/treatment of human chronic diseases, including prostate cancer and other types of cancer, cardiovascular diseases, diabetes mellitus and neurodegenerative diseases such as Alzheimer's and Parkinson's disease; we also discuss their ability to modulate multiple signalling transduction pathways involved in the pathophysiology of these diseases. Despite the fact that data regarding the biological functions of polyphenols can be considered exhaustive, evidence is still inadequate to support clear beneficial effects on human chronic diseases. Currently, most data suggest that a combination of phytochemicals rather than any single polyphenol is responsible for health benefit. More studies investigating the role of polyphenols in the prevention of chronic human diseases are needed, especially for evaluating factors such as gender, age, genotype, metabolism and bioavailability. PMID- 29042288 TI - Mast cell degranulation and calcium influx are inhibited by an Echinacea purpurea extract and the alkylamide dodeca-2E,4E-dienoic acid isobutylamide. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Native Americans used plants from the genus Echinacea to treat a variety of different inflammatory conditions including swollen gums, sore throats, skin inflammation, and gastrointestinal disorders. Today, various Echinacea spp. preparations are used primarily to treat upper respiratory infections. AIM OF THE STUDY: The goal of this study was to evaluate the effects of an ethanolic E. purpurea (L) Moench root extract and the alkylamide dodeca-2E,4E-dienoic acid isobutylamide (A15) on mast cells, which are important mediators of allergic and inflammatory responses. Inhibition of mast cell activation may help explain the traditional use of Echinacea. MATERIALS AND METHODS: A15 was evaluated for its effects on degranulation, calcium influx, cytokine and lipid mediator production using bone marrow derived mast cells (BMMCs) and the transformed rat basophilic leukemia mast cell line RBL-2H3. Methods included enzymatic assays, fluorimetry, ELISAs, and microscopy. A root extract of E. purpurea, and low and high alkylamide-containing fractions prepared from this extract, were also tested for effects on mast cell function. Finally, we tested A15 for effects on calcium responses in RAW 264.7 macrophage and Jurkat T cell lines. RESULTS: A15 inhibited beta-hexosaminidase release from BMMCs and RBL-2H3 cells after treatment with the calcium ionophore A23187 by 83.5% and 48.4% at 100uM, respectively. Inhibition also occurred following stimulation with IgE anti-DNP/DNP-HSA. In addition, A15 inhibited 47% of histamine release from A23187-treated RBL-2H3 cells. A15 prevented the rapid rise in intracellular calcium following FcepsilonRI crosslinking and A23187 treatment suggesting it acts on the signals controlling granule release. An E. purpurea root extract and a fraction with high alkylamide content derived from this extract also displayed these activities while fractions with little to no detectable amounts of alkylamide did not. A15 mediated inhibition of calcium influx was not limited to mast cells as A23187-stimulated calcium influx was blocked in both RAW 264.7 and Jurkat cell lines with 60.2% and 43.6% inhibition at 1min post-stimulation, respectively. A15 also inhibited the release of TNF-alpha, and PGE2 to a lesser degree, following A23187 stimulation indicating its broad activity on mast cell mediator production. CONCLUSIONS: These findings suggest that Echinacea extracts and alkylamides may be useful for treating allergic and inflammatory responses mediated by mast cells. More broadly, since calcium is a critical second messenger, the inhibitory effects of alkylamides on calcium uptake would be predicted to dampen a variety of pathological responses, suggesting new uses for this plant and its constituents. PMID- 29042290 TI - Wild edible plants: Nutritional and toxicological characteristics, retrieval strategies and importance for today's society. AB - Wild edible plants (WEPs) are part of the cultural and genetic heritage of different regions of the world. In times of famine and scarcity, these sources of nutrients and health-promoting compounds have received high importance mainly in rural and suburban areas. Although currently underutilized, WEPs are still consumed traditionally by different communities and are gaining relevance in today's society. However, these foods lack recognition as significant contributors to the human diet in developed areas. This review describes the nutritional value of WEPs from the North-eastern region of Portugal and points out those containing potentially toxic compounds. Several retrieval strategies are presented with the aim of promoting the (re)use, production, commercialization and conservation of WEPs (wild harvested plants and crop wild relatives), and their importance for social, economic and agro-ecological development is highlighted. PMID- 29042291 TI - MicroRNAs as biomarkers for liver injury: Current knowledge, challenges and future prospects. AB - MicroRNAs (miRNAs) are short regulatory RNAs that are involved in various biological processes that regulate gene expression posttranscriptionally. Changes in miRNA expression can be detected in many physiological and pathological events, such as liver injury. Drug induced liver injury is a life threatening condition that frequently requires organ transplantation. Hepatotoxicity is also one of the major causes of drug failure in clinical trials and of drug withdrawal from the market. The profiling of miRNA expression shows great promise in monitoring liver injury, in the prediction of outcome in patients, and in the identification of liver-reactive compounds in toxicological assessment. Recent studies have demonstrated organ-specificity of some miRNAs (i.e., miR-122), which are released into biological fluids as a result of hepatocyte damage. This attests to the potential of miRNAs as noninvasive biomarkers to detect liver toxicity. This review presents information on miRNA signatures of hepatotoxicity and on the application of promising miRNA biomarkers in preclinical safety assessment. We further discuss the technical challenges associated with these emerging biomarkers for early diagnosis and detection of hepatotoxicity. PMID- 29042292 TI - Obesity enhances carcinogen 7, 12-Dimethylbenz [a] anthracene -induced tumorigenesis in vitro and in vivo. AB - Growing body of evidence shows that extra adiposity influences on the progression of multiple cancers, including breast cancer. The aim of this study is to investigate whether obesity correlates with mammary tumor development in vitro and in vivo. We found that obesity-related mediators, 3T3-L1 adipocyte conditioned medium, enhanced formation of cancerous foci induced by the carcinogen 7,12-Dimethylbenz[a]anthracene (DMBA) in NIH/3T3 fibroblasts, in vitro. Additionally, we tested the effect of obesity in mouse model of DMBA induced breast cancer. C57BL/6J female mice were fed a low fat (LF), or high fat (HF) diet, and DMBA was administered by oral gavage (LF plus DMBA [LFD] and HF plus DMBA [HFD]). Our results indicated that HFD mouse developed a tumor which weight was 169mg, whereas the LFD mouse developed a tumor weight of 77mg. Histological analysis of the mammary tumor from HFD group showed morphological aggressiveness and multiple cell type infiltration compared to LFD group. The epididymal adipose tissue from the DMBA groups showed more macrophage infiltration, polarized towards an M1 phenotype compared to the non-DMBA mice. HF mice showed less accumulation of M2 macrophages in the adipose tissue. In summary, obese mediators enhanced DMBA induced tumorigenesis in vitro and in vivo. PMID- 29042293 TI - Development of novel prediction model for drug-induced mitochondrial toxicity by using naive Bayes classifier method. AB - Mitochondrial dysfunction has been considered as an important contributing factor in the etiology of drug-induced organ toxicity, and even plays an important role in the pathogenesis of some diseases. The objective of this investigation was to develop a novel prediction model of drug-induced mitochondrial toxicity by using a naive Bayes classifier. For comparison, the recursive partitioning classifier prediction model was also constructed. Among these methods, the prediction performance of naive Bayes classifier established here showed best, which yielded average overall prediction accuracies for the internal 5-fold cross validation of the training set and external test set were 95 +/- 0.6% and 81 +/- 1.1%, respectively. In addition, four important molecular descriptors and some representative substructures of toxicants produced by ECFP_6 fingerprints were identified. We hope the established naive Bayes prediction model can be employed for the mitochondrial toxicity assessment, and these obtained important information of mitochondrial toxicants can provide guidance for medicinal chemists working in drug discovery and lead optimization. PMID- 29042294 TI - Impaired cardiac autonomic regulation and long-term risk of atrial fibrillation in patients with coronary artery disease. AB - BACKGROUND: The influence of autonomic cardiac regulation on long-term risk of new-onset atrial fibrillation (AF) in coronary artery disease (CAD) is not well established. OBJECTIVE: The purpose of this study was to evaluate the value of heart rate variability, a marker of cardiac autonomic regulation, in predicting new-onset AF in CAD. METHODS: The Innovation to Reduce Cardiovascular Complications of Diabetes at the Intersection study population consisted of 1946 patients with CAD. After exclusions, the present analysis included 1710 patients. Those patients had a 24-hour electrocardiographic recording at baseline. RESULTS: A total of 143 cases (8.4%) of new-onset AF were observed during a follow-up of 5.6 +/- 1.5 years. The lower values of the short-term scaling exponent of the detrended fluctuation analysis (DFA1) and the ratio of the low-frequency and high frequency components of the power spectrum (LF/HF ratio) remained the strongest heart rate variability predictors of the development of AF after relevant adjustments in Cox multivariate regression analysis (P < .001 for both). The accuracy of these parameters in prediction of AF was even better (area under the receiver operating characteristic curve 0.630 and 0.631, respectively) than that of echocardiographic left atrial diameter (area under the curve 0.618). Including DFA1 and LF/HF ratio in the AF risk model increased the C-index from 0.630 (95% confidence interval 0.569-0.692) to 0.666 (95% confidence interval 0.612-0.720). CONCLUSION: Impaired cardiac autonomic regulation measured by DFA1 and LF/HF ratio predicts the development of new-onset AF as well as or even better than left atrial diameter in patients with CAD. PMID- 29042295 TI - Chronic obstructive pulmonary disease and ventricular arrhythmia-Association or causation? PMID- 29042296 TI - Computations in the deep vs superficial layers of the cerebral cortex. AB - A fundamental question is how the cerebral neocortex operates functionally, computationally. The cerebral neocortex with its superficial and deep layers and highly developed recurrent collateral systems that provide a basis for memory related processing might perform somewhat different computations in the superficial and deep layers. Here we take into account the quantitative connectivity within and between laminae. Using integrate-and-fire neuronal network simulations that incorporate this connectivity, we first show that attractor networks implemented in the deep layers that are activated by the superficial layers could be partly independent in that the deep layers might have a different time course, which might because of adaptation be more transient and useful for outputs from the neocortex. In contrast the superficial layers could implement more prolonged firing, useful for slow learning and for short-term memory. Second, we show that a different type of computation could in principle be performed in the superficial and deep layers, by showing that the superficial layers could operate as a discrete attractor network useful for categorisation and feeding information forward up a cortical hierarchy, whereas the deep layers could operate as a continuous attractor network useful for providing a spatially and temporally smooth output to output systems in the brain. A key advance is that we draw attention to the functions of the recurrent collateral connections between cortical pyramidal cells, often omitted in canonical models of the neocortex, and address principles of operation of the neocortex by which the superficial and deep layers might be specialized for different types of attractor related memory functions implemented by the recurrent collaterals. PMID- 29042297 TI - TREK-1 pathway mediates isoflurane-induced memory impairment in middle-aged mice. AB - Post-operative cognitive dysfunction (POCD) has been widely reported, especially in elderly patients. An association between POCD and inhalational anesthetics, such as isoflurane, has been suggested. The TWIK-related K+ channel-1 (TREK-1) controls several major cellular responses involved in memory formation and is believed to participate in the development of depression, cerebral ischemia and blood-brain barrier dysfunction. However, the specific role of TREK-1 in mediating anesthesia-induced POCD remains unknown. In the current study, we determined that exposure to isoflurane affected memory in middle-aged mice and altered TREK-1 expression. In addition, TREK-1 over-expression exacerbated isoflurane-induced memory impairment, while TREK-1 silence attenuated the impairment. Taken together, our data demonstrate that inhibition of TREK-1 protects mice from cognitive impairment induced by anesthesia and TREK-1 is a potential therapeutic target against memory impairment induced by volatile anesthetics. PMID- 29042299 TI - Non-pharmacological interventions for spasticity in adults: An overview of systematic reviews. AB - OBJECTIVES: Spasticity causes significant long-term disability-burden, requiring comprehensive management. This review evaluates evidence from published systematic reviews of clinical trials for effectiveness of non-pharmacological interventions for improved spasticity outcomes. METHODS: Data sources: a literature search was conducted using medical and health science electronic (MEDLINE, EMBASE, CINAHL, PubMed, and the Cochrane Library) databases for published systematic reviews up to 15th June 2017. DATA EXTRACTION AND SYNTHESIS: two reviewers applied inclusion criteria to select potential systematic reviews, independently extracted data for methodological quality using Assessment of Multiple Systematic Reviews (AMSTAR). Quality of evidence was critically appraised with Grades of Recommendation, Assessment, Development and Evaluation (GRADE). RESULTS: Overall 18 systematic reviews were evaluated for evidence for a range of non-pharmacological interventions currently used in managing spasticity in various neurological conditions. There is "moderate" evidence for electro neuromuscular stimulation and acupuncture as an adjunct therapy to conventional routine care (pharmacological and rehabilitation) in persons following stroke. "Low" quality evidence for rehabilitation programs targeting spasticity (such as induced movement therapy, stretching, dynamic elbow-splinting, occupational therapy) in stroke and other neurological conditions; extracorporeal shock-wave therapy in brain injury; transcranial direct current stimulation in stroke; transcranial magnetic stimulation and transcutaneous electrical nerve stimulation for other neurological conditions; physical activity programs and repetitive magnetic stimulation in persons with MS, vibration therapy for SCI and stretching for other neurological condition. For other interventions, evidence was inconclusive. CONCLUSIONS: Despite the available range of non-pharmacological interventions for spasticity, there is lack of high-quality evidence for many modalities. Further research is needed to judge the effect with appropriate study designs, timing and intensity of modalities, and associate costs of these interventions. PMID- 29042298 TI - Metabolism of the fast-growing bacterium Vibrio natriegens elucidated by 13C metabolic flux analysis. AB - Vibrio natriegens is a fast-growing, non-pathogenic bacterium that is being considered as the next-generation workhorse for the biotechnology industry. However, little is known about the metabolism of this organism which is limiting our ability to apply rational metabolic engineering strategies. To address this critical gap in current knowledge, here we have performed a comprehensive analysis of V. natriegens metabolism. We constructed a detailed model of V. natriegens core metabolism, measured the biomass composition, and performed high resolution 13C metabolic flux analysis (13C-MFA) to estimate intracellular fluxes using parallel labeling experiments with the optimal tracers [1,2-13C]glucose and [1,6-13C]glucose. During exponential growth in glucose minimal medium, V. natriegens had a growth rate of 1.70 1/h (doubling time of 24min) and a glucose uptake rate of 3.90g/g/h, which is more than two 2-fold faster than E. coli, although slower than the fast-growing thermophile Geobacillus LC300. 13C-MFA revealed that the core metabolism of V. natriegens is similar to that of E. coli, with the main difference being a 33% lower normalized flux through the oxidative pentose phosphate pathway. Quantitative analysis of co-factor balances provided additional insights into the energy and redox metabolism of V. natriegens. Taken together, the results presented in this study provide valuable new information about the physiology of V. natriegens and establish a solid foundation for future metabolic engineering efforts with this promising microorganism. PMID- 29042300 TI - Pregnancy-related low back pain in women in Turkey: Prevalence and risk factors. AB - OBJECTIVES: To investigate the prevalence of pregnancy-related low back pain (PRLBP) in women in Turkey, identify the factors associated with PRLBP and predict the risk of PRLBP. MATERIALS AND METHODS: This cross-sectional study included a total of 1500 pregnant women admitted to a prenatal care clinic in a secondary care hospital in Turkey between August 2011 and September 2014. All participants were asked to complete a survey questionnaire. The pregnant women who reported recurrent or continuous pain in the lumbar spine or pelvis for more than 1 week were offered a clinical examination for PRLBP by the spine physiatrist. The main outcome measure was the presence of PRLBP. We collected data on sociodemographic factors, previous obstetric history, daily habits, history of LBP, and functional disability scores as assessed by the Oswestry Disability Index (ODI). RESULTS: The mean age of the 1500 women was 26.5+/-5.5 years. The prevalence of PRLBP was 53.9%, mostly in the third trimester. Women with PRLBP in the third trimester were more disabled than those in the first and second trimesters (mean ODI 40.0+/-16.7 vs. 34.9+/-19.2 and 37.4+/-15.3, respectively). Risk factors of PRLBP were history of LBP, PRLBP, and menstruation related LBP as well as no housework assistance (OR=5.394, 95% CI: 3.128-9.300, P<0.001; 3.692, 2.745-4.964, P<0.001; 2.141, 1.563-2.932, P<0.001; 1.300, 1.029 1.64, P=0.028, respectively). CONCLUSION: This cross-sectional study is the largest study of PRLBP in the literature and showed that about 1 in 2 women have PRLBP in any stage of pregnancy. History of LBP related and unrelated to previous pregnancy and menstruation are strong risk factors for PRLBP. Receiving no housework assistance is another risk factor. PMID- 29042301 TI - Towards a first implementation of the WLIMES approach in living system studies advancing the diagnostics and therapy in augmented personalized medicine. AB - The goal of this paper is to advance an extensible theory of living systems using an approach to biomathematics and biocomputation that suitably addresses self organized, self-referential and anticipatory systems with multi-temporal multi agents. Our first step is to provide foundations for modelling of emergent and evolving dynamic multi-level organic complexes and their sustentative processes in artificial and natural life systems. Main applications are in life sciences, medicine, ecology and astrobiology, as well as robotics, industrial automation, man-machine interface and creative design. Since 2011 over 100 scientists from a number of disciplines have been exploring a substantial set of theoretical frameworks for a comprehensive theory of life known as Integral Biomathics. That effort identified the need for a robust core model of organisms as dynamic wholes, using advanced and adequately computable mathematics. The work described here for that core combines the advantages of a situation and context aware multivalent computational logic for active self-organizing networks, Wandering Logic Intelligence (WLI), and a multi-scale dynamic category theory, Memory Evolutive Systems (MES), hence WLIMES. This is presented to the modeller via a formal augmented reality language as a first step towards practical modelling and simulation of multi-level living systems. Initial work focuses on the design and implementation of this visual language and calculus (VLC) and its graphical user interface. The results will be integrated within the current methodology and practices of theoretical biology and (personalized) medicine to deepen and to enhance the holistic understanding of life. PMID- 29042302 TI - Attenuation of Pseudomonas aeruginosa quorum sensing, virulence and biofilm formation by extracts of Andrographis paniculata. AB - Quorum-sensing (QS) is known to play an essential role in regulation of virulence factors and toxins during Pseudomonas aeruginosa infection which may frequently cause antibiotic resistance and hostile outcomes of inflammatory injury. Therefore, it is an urgent need to search for a novel agent with low risk of resistance development that can target QS and inflammatory damage prevention as well. Andrographis paniculata, a herbaceous plant under the family Acanthaceae, native to Asian countries and also cultivated in Scandinavia and some parts of Europe, has a strong traditional usage with its known antibacterial, anti inflammatory, antipyretic, antiviral and antioxidant properties. In this study, three different solvent extracts (viz., chloroform, methanol and aqueous) of A. paniculata were examined for their anti-QS and anti-inflammatory activities. Study was carried out to assess the effect on some selected QS-regulatory genes at transcriptional level using Real Time-PCR. In addition, ability to attenuate MAPK pathways upon P. aeruginosa infection was performed to check its potential anti-inflammatory activity. Chloroform and methanol extracts showed significant reduction (p < 0.05) of the QS-controlled extracellular virulence factors in P. aeruginosa including the expression of pyocyanin, elastase, total protease, rhamnolipid and hemolysin without affecting bacterial viability. They also significantly (p < 0.05) reduced swarming motility and biofilm formation of P. aeruginosa. The chloroform extract, which was found to be more effective, decreased expression of lasI, lasR, rhlI and rhlR by 61%, 75%, 41%, and 44%, respectively. Moreover, chloroform extract decreased activation of p-p38 and p ERK1/2 expression levels in MAPK signal pathways in P. aeruginosa infected macrophage cells. As the present study demonstrates that A. paniculata extracts inhibit QS in P. aeruginosa and exhibit anti-inflammatory activities, therefore it represents itself as a prospective therapeutic agent against P. aeruginosa infection. PMID- 29042303 TI - Changes in serum proteins in dogs with Ehrlichia canis infection. AB - The aim of this study was the identification of proteins differentially represented in the serum proteome of seropositive dogs with (Group 1) and without (Group 2) clinical-pathologic signs consistent with ehrlichiosis compared to healthy control dogs. Serum samples were collected from 20 dogs of various breeds with naturally occurring ehrlichiosis (10 dogs belonged to Group 1 and 10 to Group 2) and 10 healthy dogs. Two-dimensional electrophoresis (2DE) of pooled serum for each of the group of dogs were run in triplicate. 2D image analysis showed 39 spots differently expressed between Group 1 and Group 2 compared with healthy ones. Mass spectrometry analysis allowed identification of 6 proteins: albumin, haptoglobin (Hp), alpha-1-antitrypsin (AAT), Retinol Binding Protein 4 (RBP-4), alpha-1-acid glycoprotein (AGP) and vitamin D-binding protein (VDBP). When a confirmatory study was performed for albumin, Hp, AAT and RBP-4 by using different assays, significant differences (P < 0.05) between diseased and healthy groups were observed. It can be concluded that there are significant changes in the serum proteome of dogs with ehrlichiosis with modifications in proteins related with the acute phase response such as Hp, albumin and AGP, with vitamin A transport such as RBP-4, with inhibitors of serine proteases and anti inflammatory proteins such as AAT, and vitamin D metabolism and actin scavengers such as VDBP. PMID- 29042304 TI - Xanthine oxidase activity affects pro-oxidative and pro-inflammatory profiles in spleen of silver catfish experimentally infected with Aeromonas caviae. AB - Several pieces of evidence have linked the involvement of xanthine oxidase (XO), a source of uric acid and reactive oxygen species (ROS), to pro-oxidative and pro inflammatory effects observed during bacterial fish diseases. Thus, the aim of this study was to evaluate whether upregulation of splenic XO activity contributes to disease pathogenesis of Aeromonas caviae infection, as well as whether it may be considered a pathway involved in ROS and nitric oxide (NO) production. XO activity increased in the spleen of infected animals, as did the splenic levels of uric acid, ROS and metabolites of nitric oxide (NOx), compared to the uninfected control group. Based on this evidence, upregulation of splenic XO activity induces pro-oxidant and pro-inflammatory profiles in the spleen of fish infected by A. caviae due to excessive formation of uric acid. Moreover, excessive uric acid induces the release of pro-inflammatory mediators, such as ROS and NOx, which contribute to disease pathophysiology. In summary, upregulation of XO activity may be considered a pathway involved in ROS and NOx production. PMID- 29042305 TI - Influence of the fish oil in the gut microbiota of wistar rats (Rattus norvegicus) treated with dexamethasone and amoxicillin. AB - The widespread use of antibiotics and anti-inflammatory has been more and more prominent. In spite of the proven pharmacological potential, its collateral effects are still being described. The fish oil is made of acids fatty polyunsaturated, as the omega 3. The aim of this paper is to check if there would be interference of this fish oil in the gut microbiota of rats when treated with dexamethasone and amoxicillin, joining with the parameter lipids and glycemic. This study was done with 42 Wistar rats, divided into 6 groups with 7 animals each: naive (CTL), amoxicillin (AMOX), dexamethasone (DEX), fish oil (OLP), associated amoxicillin and fish oil (AMOX + OLP) association dexamethasone and fish oil (DEX + OLP). The results show that the fish oil influenced in the concentration of blood glucose in the animals, keeping stable levels even after a pool of glucose. Differently, the fish oil increased the levels of LDL in the animals. The amoxicillin changed the mass of liver and spleen, changed the levels of triglyceride and changed the gut microbiota. The dexamethasone influenced the lipids parameters and mass of the spleen as well as it slightly increased the amount of cholesterol LDL. It is possible to conclude that fish oil increases the levels of LDL in the tested model and the dose tested, but is able to maintain glucose levels even after a pool of the same, and can be a preventive model with hyperglycemia. PMID- 29042306 TI - Cigarette smoke induces mitochondrial metabolic reprogramming in lung cells. AB - Cellular transformation owing to cigarette smoking is due to chronic exposure and not acute. However, systematic studies to understand the molecular alterations in lung cells due to cigarette smoke are lacking. To understand these molecular alterations induced by chronic cigarette smoke exposure, we carried out tandem mass tag (TMT) based temporal proteomic profiling of lung cells exposed to cigarette smoke for upto 12months. We identified 2620 proteins in total, of which 671 proteins were differentially expressed (1.5-fold) after 12months of exposure. Prolonged exposure of lung cells to smoke for 12months revealed dysregulation of oxidative phosphorylation and overexpression of enzymes involved in TCA cycle. In addition, we also observed overexpression of enzymes involved in glutamine metabolism, fatty acid degradation and lactate synthesis. This could possibly explain the availability of alternative source of carbon to TCA cycle apart from glycolytic pyruvate. Our data indicates that chronic exposure to cigarette smoke induces mitochondrial metabolic reprogramming in cells to support growth and survival. PMID- 29042307 TI - Programmable LED-based integrating sphere light source for wide-field fluorescence microscopy. AB - Wide-field fluorescence microscopy commonly uses a mercury lamp, which has limited spectral capabilities. We designed and built a programmable integrating sphere light (PISL) source which consists of nine LEDs, light-collecting optics, a commercially available integrating sphere and a baffle. The PISL source is tuneable in the range 365-490nm with a uniform spatial profile and a sufficient power at the objective to carry out spectral imaging. We retrofitted a standard fluorescence inverted microscope DM IRB (Leica) with a PISL source by mounting it together with a highly sensitive low- noise CMOS camera. The capabilities of the setup have been demonstrated by carrying out multispectral autofluorescence imaging of live BV2 cells. PMID- 29042308 TI - Abiraterone Followed by Enzalutamide Versus Enzalutamide Followed by Abiraterone in Chemotherapy-naive Patients With Metastatic Castration-resistant Prostate Cancer. AB - BACKGROUND: Abiraterone (AA) and enzalutamide (ENZA) are increasingly being used in chemotherapy-naive patients with metastatic castration-resistant prostate cancer owing to efficacy and favorable toxicity. However, the order in which they should be administered has not been determined. PATIENTS AND METHODS: We retrospectively reviewed the records of chemotherapy-naive patients with metastatic castration-resistant prostate cancer who had received sequential treatment with either AA followed by ENZA (AA-ENZA) or the converse (ENZA-AA). Prostate-specific antigen (PSA) response rates (defined as >= 50% PSA decline from baseline), first-line progression-free survival (PFS), second-line PFS, combined PFS (defined as first-line PFS plus second-line PFS), and overall survival are compared between the 2 sequence groups. RESULTS: A total of 97 patients received sequential treatment with AA and ENZA; 50 patients were in the AA-ENZA group, and 47 patients were in the ENZA-AA group. The PSA response rate to first-line treatment was not significantly different between AA (48%) and ENZA (51%) (P = .840). However, a significant difference was observed in the PSA response rate to second-line treatment (AA, 6.4% vs. ENZA, 30%; P = .004). The median combined PFS was not significantly different between sequence groups (hazard ratio, 0.71; 95% confidence interval, 0.46-1.08; log-rank P = .105). The order of addition also had no significant effect on median overall survival (hazard ratio, 0.98; 95% confidence interval, 0.64-1.52; log-rank P = .834). CONCLUSION: With the exception of the second-line PSA response, there was no significant difference in clinical outcomes between the AA-ENZA and ENZA-AA groups. Our results might be useful reference in daily practice, especially for patients who do not have a suitable general condition for chemotherapy. PMID- 29042309 TI - The binding of botulinum neurotoxins to different peripheral neurons. AB - Botulinum neurotoxins are the most potent toxins known. The double receptor binding modality represents one of the most significant properties of botulinum neurotoxins and largely accounts for their incredible potency and lethality. Despite the high affinity and the very specific binding, botulinum neurotoxins are versatile and multi-tasking toxins. Indeed they are able to act both at the somatic and at the autonomic nervous system. In spite of the preference for cholinergic nerve terminals botulinum neurotoxins have been shown to inhibit to some extent also the noradrenergic postganglionic sympathetic nerve terminals and the afferent nerve terminals of the sensory neurons inhibiting the release of neuropeptides and glutamate, which are responsible of nociception. Therefore, there is increasing evidence that the therapeutic effect in both motor and autonomic disorders is based on a complex mode of botulinum neurotoxin action modulating the activity of efferent as well as afferent nerve fibres. PMID- 29042310 TI - Antivenom against Crotalus durissus terrificus venom: Immunochemical reactivity and experimental neutralizing capacity. AB - The venom of Crotalus durissus terrificus produces a neurotoxic and myotoxic syndrome that can lead to the death. Specific antivenom is the only treatment to neutralize the toxicity of the venom and the precocity in applying the antivenom is crucial for the efficiency of the treatment. We studied the variation of the immunochemical reactivity and neutralizing capacity of the specific antivenom on this venom in pre-incubation and rescue experiments, at different times. ELISA titers increased with longer venom-antivenom incubation times (p < 0.05) nevertheless incubation times had no effect on the neutralizing capacity of the antivenom. The antivenom dose necessary to rescue mice injected with 1.5 MMD (minimal mortal dose) 30 min after venom inoculation was over ten folds the dose of antivenom theoretically required to neutralize the same dose of venom according values obtained from pre-incubation experiments. Results showed that the in vitro immunochemical reactivity is not directly related to the neutralizing capacity. These observations underline the need for a rapid antivenom administration. Although preincubation experiments in mice are a powerful tool for the validation of the potency of the antivenoms in the productive process, it is clear that the nominal neutralization of the antivenoms must not be considered as a "stoichiometric" value regarding the venom to be neutralized in case of natural envenomation and emphasize the need of realization of clinical trials in order to evaluate the adequate doses of antivenom to be therapeutically used. PMID- 29042311 TI - Rational design of botulinum neurotoxin A1 mutants with improved oxidative stability. AB - Botulinum neurotoxins (BoNTs) are the most potent toxic proteins to mankind known but applied in low doses trigger a localized muscle paralysis that is beneficial for the therapy of several neurological disorders and aesthetic treatment. The paralytic effect is generated by the enzymatic activity of the light chain (LC) that cleaves specifically one of the SNARE proteins responsible for neurotransmitter exocytosis. The activity of the LC in a BoNT-containing therapeutic can be compromised by denaturing agents present during manufacturing and/or in the cell. Stabilization of the LC by reducing vulnerability towards denaturants would thus be advantageous for the development of BoNT-based therapeutics. In this work, we focused on increasing the stability of LC of BoNT/A1 (LC/A1) towards oxidative stress. We tackled this task by rational design of mutations at cysteine and methionine LC/A1 sites. Designed mutants showed improved oxidative stability in vitro and equipotency to wildtype toxin in vivo. Our results suggest that suitable modification of the catalytic domain can lead to more stable BoNTs without impairing their therapeutic efficacy. PMID- 29042312 TI - Extracellular expression of the HT1 neurotoxin from the Australian paralysis tick in two Saccharomyces cerevisiae strains. AB - Surface display libraries (SDL) have predominantly been utilized for the screening of peptides, and single-chain variable IgG fragments, however, the use of SDL for the expression and purification of proteins is gaining interest. Prokaryote SDL express proteins within the periplasm, limiting the application of common screening techniques, such as ELISA and FACS, to assess the viability of recombinant toxin before purification. A previous attempt to express a functional holocyclotoxin-1 (HT1) from the Australian paralysis tick (Ixodes holocyclus) using a prokaryotic system was unsuccessful. In this study, the coding sequence (CDS) of HT1 was cloned into the pYD1 plasmid and transformed by electroporation into IMTV014 and EBY100 yeast cell lines. Post induction, recombinant HT1 was identified on the cell surface of IMTV014/ht1 and EBY100/ht1 transformants by FACS, Western blot, and ELISA utilizing dog anti-paralysis tick IgG. The recombinant HT1 was purified, and functionality confirmed by an in vitro synaptosome-binding assay. This research reports for the first time the extracellular expression and display of a functional HT1 on the surface of the S. cerevisiae. It also provides evidence that yeast display libraries provide a viable technology to produce recombinant toxins, and their screening using high throughput methodologies such as FACS. PMID- 29042314 TI - Differential distribution and function of GABABRs in somato-dendritic and axonal compartments of principal cells and interneurons in cortical circuits. AB - GABABRs are highly expressed in cortical circuits, controlling neuronal excitability and synaptic transmission in both principal cells and inhibitory interneurons. Light and electron microscopic studies confirmed the wide distribution of receptors and revealed cell type-specific quantitative differences in their cellular and subcellular distributions. At the subcellular level, GABABRs are abundant at the peri- and extrasynaptic membrane of somato dendritic compartments and to lower levels in the axon terminals of both cortical excitatory principal cells and inhibitory interneurons. Differences in the surface densities are particularly prominent between neurochemically-defined interneuron types. Whole-cell recordings further demonstrated that GABABRs differentially mediate post- and presynaptic inhibition in principal cells and various GABAergic interneurons by preferentially modulating postsynaptic G protein-coupled inwardly rectifying K+ (Kir3) channels and presynaptic high voltage-activated Ca2+ (Cav) channels. These data convergently indicate that GABABRs not only control the overall level of neuronal excitability and activity, but can also fine tune the activation and interactions of excitatory and inhibitory neurons in cortical circuits. This article is part of the "Special Issue Dedicated to Norman G. Bowery". PMID- 29042313 TI - The hypothetical protein P47 of Clostridium botulinum E1 strain Beluga has a structural topology similar to bactericidal/permeability-increasing protein. AB - Botulinum neurotoxins (BoNTs) are causative agents of the life-threatening disease botulism. They are naturally produced by species of the bacteria Clostridium botulinum as stable and non-covalent complexes, in which the BoNT molecule is assembled with several auxiliary non-toxic proteins. Some BoNT serotypes, represented by the well-studied BoNT serotype A (BoNT/A), are produced by Clostridium strains that carry the ha gene cluster, which encodes four neurotoxin-associated proteins (NTNHA, HA17, HA33, and HA70) that play an important role to deliver and protect BoNTs in the gastrointestinal tract during oral intoxication. In contrast, BoNT/E- and BoNT/F-producing strains carry a distinct gene cluster that encodes five proteins (NTNHA, P47, OrfX1, OrfX2, and OrfX3, termed the orfX cluster). The structures and functions of these proteins remain largely unknown. Here, we report the crystal structure of P47 resolved at 2.8 A resolution. Surprisingly, P47 displays a structural topology that is similar to bactericidal/permeability-increasing (BPI) like proteins, which were previously identified only in eukaryotes. The similarity of a hydrophobic cleft of P47 with the phospholipid-binding groove of BPI suggests that P47 might be involved in lipid association to exert its function. Consistently, P47 associates and induces aggregation of asolectin-containing liposomes in a protein- and lipid concentration dependent manner. These findings laid the foundation for future structural and functional studies of the potential roles of P47 and OrfX proteins in facilitating oral intoxication of BoNTs. PMID- 29042315 TI - IL-1beta reduces GluA1 phosphorylation and its surface expression during memory reconsolidation and alpha-melanocyte-stimulating hormone can modulate these effects. AB - Pro-inflammatory cytokines can affect cognitive processes such as learning and memory. Particularly, interleukin-1beta (IL-1beta) influences hippocampus dependent memories. We previously reported that administration of IL-1beta in dorsal hippocampus impaired contextual fear memory reconsolidation. This effect was reversed by the melanocortin alpha-melanocyte-stimulating hormone (alpha MSH). Our results also demonstrated that IL-1beta produced a significant decrease in glutamate release from dorsal hippocampus synaptosomes after reactivation of the fear memory. Therefore, we investigated whether IL-1beta administration can affect GluA1 AMPA subunit phosphorylation, surface expression, and total expression during reconsolidation of a contextual fear memory. Also, we studied the modulatory effect of alpha-MSH. We found that IL-1beta reduced phosphorylation of this subunit at Serine 831 and Serine 845 60 min after contextual fear memory reactivation. The intrahippocampal administration of IL 1beta after memory reactivation also induced a decrease in surface expression and total expression of GluA1. alpha-MSH prevented the effect of IL-1beta on GluA1 phosphorylation in Serine 845, but not in Serine 831. Moreover, treatment with alpha-MSH also prevented the effect of the cytokine on GluA1 surface and total expression after memory reactivation. Our results demonstrated that IL-1beta regulates phosphorylation of GluA1 and may thus play an important role in modulation of AMPAR function and synaptic plasticity in the brain. These findings further illustrate the importance of IL-1beta in cognition processes dependent on the hippocampus, and also reinforced the fact that alpha-MSH can reverse IL-1beta effects on memory reconsolidation. PMID- 29042316 TI - Repeated exposure to 3,4-methylenedioxypyrovalerone and cocaine produces locomotor sensitization with minimal effects on brain monoamines. AB - Synthetic cathinones, known as "bath salts" on the illicit drug market, pose a significant public health concern. 3,4-Methylenedioxypyrovalerone (MDPV), one of several popular constituents of illicit bath salts, produces similar pharmacological actions to cocaine, albeit with greater potency and efficacy. The present study sought to characterize behavioral and neurochemical effects of repeated exposure to MDPV alone and in combination with cocaine. Male Sprague Dawley rats were randomly assigned to one the following four treatments, administered once daily for seven days: 1 mg/kg MDPV, 5 mg/kg cocaine, 1 mg/kg MDPV +5 mg/kg cocaine, or saline. Locomotor activity was assessed for 1 h immediately before and 1 h immediately after injections on days 1 and 6. Brains were harvested 20 min after the final injection on day 7 and brain tissue punches were obtained to determine monoamine content within the anterior striatum, medial prefrontal cortex, and nucleus accumbens using High-Performance Liquid Chromatography (HPLC). Drug-induced increases in horizontal activity were significantly greater on treatment day 6 compared to treatment day 1 in all three drug treatment groups in comparison to the saline control group. MDPV produced significantly higher increases in activity compared to either saline or cocaine, although concurrent treatment with MDPV and cocaine produced sub-additive effects. Neurochemical analyses provided no evidence of alterations in total monoamine content following repeated administration of MDPV, cocaine, or the MDPV + COC mixture. Further investigations targeting possible changes in DA receptor sensitivity following repeated exposure to MDPV may help elucidate the mechanistic changes responsible for MDPV-induced behavioral sensitization. This article is part of the Special Issue entitled 'Designer Drugs and Legal Highs.' PMID- 29042317 TI - Fentanyl, fentanyl analogs and novel synthetic opioids: A comprehensive review. AB - Deaths from opioid use are increasing in the US, with a growing proportion due to synthetic opioids. Until 2013, sporadic outbreaks of fentanyl and fentanyl analogs contaminating the heroin supply caused some deaths in heroin users. Since then, fentanyl has caused deaths in every state and fentanyl and its analogs have completely infiltrated the North American heroin supply. In 2014, the first illicit pills containing fentanyl, fentanyl analogs, and other novel synthetic opioids such as U-47700 were detected. These pills, which look like known opioids or benzodiazepines, have introduced synthetic opioids to more unsuspecting customers. As soon as these drugs are regulated by various countries, new compounds quickly appear on the market, making detection difficult and the number of cases likely underreported. Standard targeted analytical techniques such as GC MS (gas chromatography mass spectrometry) and LC-MS/MS (liquid chromatography tandem mass spectrometry) can detect these drugs, but novel compound identification is aided by nontargeted testing with LC-HRMS (liquid chromatography high resolution mass spectrometry). Fentanyl, fentanyl analogs and other novel synthetic opioids are all full agonists of varying potencies at the MU-opioid receptor, leading to typical clinical effects of miosis and respiratory and central nervous system depression. Due to their high affinity for MU-opioid receptors, larger doses of naloxone are required to reverse the effects than are commonly used. Synthetic opioids are an increasingly major public health threat requiring vigilance from multiple fields including law enforcement, government agencies, clinical chemists, pharmacists, and physicians, to name a few, in order to stem its tide. This article is part of the Special Issue entitled 'Designer Drugs and Legal Highs.' PMID- 29042319 TI - Photochemical delivery of bleomycin induces T-cell activation of importance for curative effect and systemic anti-tumor immunity. AB - Photochemical internalization (PCI) is a technology to enhance intracellular drug delivery by light-induced translocation of endocytosed therapeutics into the cytosol. The aim of this study was to explore the efficacy of PCI-based delivery of bleomycin and the impact on systemic anti-tumor immunity. Mouse colon carcinoma cells (CT26.CL25), stably expressing the bacterial beta-galactosidase, were inoculated into the legs of athymic or immuno-competent BALB/c mice strains. The mice were injected with the photosensitizer AlPcS2a and bleomycin (BLM) prior to tumor light exposure from a 670nm diode laser. Photochemical activation of BLM was found to induce synergistic inhibition of tumor growth as compared to the sum of the individual treatments. However, a curative effect was not observed in the athymic mice exposed to 30J/cm2 of light while >90% of the thymic mice were cured after exposure to only 15J/cm2 light. Cured thymic mice, re-challenged with CT26.CL25 tumor cells on the contralateral leg, rejected 57-100% of the tumor cells inoculated immediately and up to 2months after the photochemical treatment. T-cells from the spleen of PCI-treated mice were found to inhibit the growth of CT26.CL25 cells in naive thymic mice with a 60% rejection rate. The results show that treatment of CT26.CL25 tumors in thymic mice by PCI of BLM induces a systemic anti-tumor immunity. PMID- 29042321 TI - Multimodal imaging approach to examine biodistribution kinetics of Cabotegravir (GSK1265744) long acting parenteral formulation in rat. AB - Long-Acting Parenterals (LAPs) have been used in the clinic to provide sustained therapeutic drug levels at a target site, and thereby reducing the frequency of dosing required. In an effort to understand the factors associated with long acting cabotegravir (GSK1265744 LAP) pharmacokinetic variability, the current study was designed to investigate the temporal relationship between intramuscular (IM) or subcutaneous (SC) drug depot morphology and distribution kinetics with plasma pharmacokinetics. Therefore, a multi-modal molecular imaging (MRI & MALDI IMS) approach was employed to examine the temporal GSK1265744 LAP biodistribution in rat following either IM or SC administration. Serial MRI was performed immediately post drug administration, and then at day 1 (24h post), 2, 3, 4, 7, and 14. In a separate cohort of rats, an MRI contrast agent, Feraheme(r) (USPIO), was administered 2days post IM drug injection in order to investigate the potential involvement of macrophages trafficking to the GSK1265744 LAP and Vehicle depot sites. The GSK1265744 LAP depot volume increased rapidly by day 2 in the IM injected rats (~3-7 fold) compared with a ~1 fold increase in the SC injected rats. In addition, the USPIO contrast agent labeled macrophages were shown to be present in the depot region of the GSK1265744 LAP injected gastrocnemius while the Vehicle injected gastrocnemius appeared to show reduced uptake. Matrix-assisted laser desorption ionization (MALDI) imaging mass spectrometry (IMS) of muscle and abdominal tissue sections identified the drug content primarily within the depot. Co-registration of the GSK1265744 ion images with immunohistochemical images established that the drug was taken up by macrophages associated with the depot. Linear regression analysis demonstrated that the drug depot characteristics including volume, surface area, and perimeter assessed by MRI at day 2 correlated with early time point plasma drug concentrations. In summary, a multimodal molecular imaging approach was used to identify the drug depot location and volumetric/physiologic changes in both IM and SC locations following GSK1265744 LAP administration. The IM depot volume increased rapidly to a maximum volume at 2days post-GSK1265744 LAP administration, while the Vehicle depot did not suggesting that the active drug substance and/or related particle was a key driver for drug depot evolution. The depot expansion was associated with an increase in macrophage infiltration and edema in and around the depot region and was correlated to plasma drug concentration at early time points (0-4days). Consequently, molecular imaging approaches may be used in patients to help understand the biodistribution of GSK1265744 LAP and its associated pharmacokinetics. PMID- 29042318 TI - Mechanisms of MU-opioid receptor inhibition of NMDA receptor-induced substance P release in the rat spinal cord. AB - The interaction between NMDA receptors and MU-opioid receptors in primary afferent terminals was studied by using NMDA to induce substance P release, measured as neurokinin 1 receptor internalization. In rat spinal cord slices, the MU-opioid receptor agonists morphine, DAMGO and endomorphin-2 inhibited NMDA induced substance P release, whereas the antagonist CTAP right-shifted the concentration response of DAMGO. In vivo, substance P release induced by intrathecal NMDA after priming with BDNF was inhibited by DAMGO. omega-Conotoxins MVIIC and GVIA inhibited about half of the NMDA-induced substance P release, showing that it was partially mediated by the opening of voltage-gated calcium (Cav) channels. In contrast, DAMGO or omega-conotoxins did not inhibit capsaicin induced substance P release. In cultured DRG neurons, DAMGO but not omega conotoxin inhibited NMDA-induced increases in intracellular calcium, indicating that MU-opioid receptors can inhibit NMDA receptor function by mechanisms other than inactivation of Cav channels. Moreover, DAMGO decreased the omega-conotoxin insensitive component of the substance P release. Potent inhibition by ifenprodil showed that these NMDA receptors have the NR2B subunit. Activators of adenylyl cyclase and protein kinase A (PKA) induced substance P release and this was decreased by the NMDA receptor blocker MK-801 and by DAMGO. Conversely, inhibitors of adenylyl cyclase and PKA, but not of protein kinase C, decreased NMDA-induced substance P release. Hence, these NMDA receptors are positively modulated by the adenylyl cyclase-PKA pathway, which is inhibited by MU-opioid receptors. In conclusion, MU-opioid receptors inhibit NMDA receptor-induced substance P release through Cav channel inactivation and adenylyl cyclase inhibition. PMID- 29042322 TI - Activation of Parvalbumin Neurons in the Rostro-Dorsal Sector of the Thalamic Reticular Nucleus Promotes Sensitivity to Pain in Mice. AB - The calcium-binding protein, parvalbumin (PV), is highly expressed in thalamic reticular nucleus (TRN) GABAergic neurons, which receive input from the cerebral cortex and thalamus and send inhibitory output to the thalamic relay nucleus. Previous studies suggest that the TRN is involved in pain regulation as an important relay nucleus of the ascending pain pathway. However, little is known about its functional role in pain regulation and interconnectivity. In our study, the role of rostro-dorsal sector of TRN (TRNrd) PV-positive neurons in pain regulation was studied using chemogenetics based on designer receptors exclusively activated by designer drugs (DREADD). Then, projections from the TRNrd PV-positive neurons were explored using PV-Cre transgenic mice, conditional anterograde axonal tract tracing, and optogenetics, combined with immunohistochemistry and electrophysiology. The results showed that activation of PV-positive neurons in the TRNrd decreased the mechanical threshold and thermal latency of behaving mice during the light period when neuronal activity was low. Furthermore, the anterodorsal and paratenial thalamic nucleus received innervation from PV-positive neurons in the TRNrd. They were specifically inhibited by GABA, which is released from local axonal endings of PV neurons. These findings indicate that activation of PV neurons in the TRNrd increases pain sensitivity in PV-Cre transgenic mice. PMID- 29042323 TI - Diversity and abundance of Beauveria bassiana in soils, stink bugs and plant tissues of common bean from organic and conventional fields. AB - The aim of this study was to evaluate the natural occurrence of Beauveria spp. in soil, from infections in the stink bug Piezodorus guildinii, an important pest of common bean (Phaseolus vulgaris) and as endophytes in bean plant tissue. Twelve conventional and 12 organic common bean fields in the Villa Clara province, Cuba were sampled from September 2014 to April 2015. One hundred and fifty Beauveria isolates were obtained from soil samples, bean plant parts and stink bugs. The overall frequency of occurrence of Beauveria isolates in conventional fields (8.4%) was significantly lower than that in organic fields (23.6%). Beauveria were also obtained significantly more frequently from bean roots in organic fields (15.0%) compared to bean roots in conventional fields (3.3%). DNA sequencing of the intergenic Bloc region was performed for Beauveria species identification. All isolates where characterized as Beauveria bassiana (Balsamo Crivelli) Vuillemin, and clustered with isolates of neotropical origin previously described as AFNEO_1. The Cuban B. bassiana isolates formed five clusters in the phylogeny. Isolates of two clusters originated from all four locations, organic and conventional fields, as well as soil, plants and stink bugs. Organic fields contained isolates of all five clusters while conventional fields only harbored isolates of the two most frequent ones. Mating type PCR assays revealed that mating type distribution was skewed, with MAT1/MAT2 proportion of 146/4, indicating limited potential for recombination. The present study is the first to report of B. bassiana as a naturally occurring endophyte in common bean. Further, it shows that B. bassiana occurs naturally in diverse environments of common bean fields, and constitutes a potential reservoir of natural enemies against pest insects particularly in organic fields. PMID- 29042324 TI - Characterization of hemocytes from different body fluids of the eastern oyster Crassostrea virginica. AB - Bivalve hemocytes are involved in a variety of physiological and immunological functions. Circulating hemocytes in the hemolymph represent the main component of the internal self-defense system while hemocytes present in the extrapallial space (between the mantle and the shell) are actively involved in biomineralization and shell formation. This study focused on the characterization of hemocytes from different body fluids of the eastern oyster Crassostrea virginica. Hemocytes present in the hemolymph were compared to those contained in the extrapallial fluid. Hemocytes associated with the mucus layer covering pallial organs (mantle, gills, body wall) were also investigated because of their potential role as sentinel cells. Hemocytes were characterized using flow cytometry in conjunction with fluorescent epitope markers (clusters of differentiation, lectins) as well as functional assays (i.e. phagocytosis and reactive oxygen species -ROS). Compared with the hemolymph, there was a significantly greater percentage of granulocytes and agranulocytes among extrapallial and pallial hemocytes, respectively. Accounting for the different percentages of hemocyte sub-populations, significant differences in surface carbohydrate and clusters of differentiation signatures were also revealed between the different fluids. Most informative epitope markers included concanavalin A, peanut agglutinin, soybean agglutinin, CD11b and CD14. Functional assays revealed significant differences in phagocytic activity and ROS production between hemocytes from the extrapallial fluid and hemolymph; however, less robust differences were observed between hemolymph cells and hemocytes associated with the pallial mucus. Findings from this study suggest that there are markedly different hemocyte populations in the three body fluids. The role of peripheral cells, particularly those associated with the pallial mucus, requires further investigations. PMID- 29042320 TI - Bone-targeting nanoparticle to co-deliver decitabine and arsenic trioxide for effective therapy of myelodysplastic syndrome with low systemic toxicity. AB - Myelodysplastic syndromes (MDS) are a diverse group of bone marrow disorders and clonal hematopoietic stem cell disorders characterized by abnormal blood cells, or reduced peripheral blood cell count. Recent clinical studies on combination therapy of decitabine (DAC) and arsenic trioxide (ATO) have demonstrated synergy on MDS treatment, but the treatment can cause significant side effects to patients. In addition, both drugs have to be administered on a daily basis due to their short half-lives. In addressing key issues of reducing toxic side effects and improving pharmacokinetic profiles of the therapeutic agents, we have developed a new formulation by co-packaging DAC and ATO into alendronate conjugated bone-targeting nanoparticles (BTNPs). Our pharmacokinetic studies revealed that intravenously administered BTNPs increased circulation time up to 3days. Biodistribution analysis showed that the BTNP facilitated DAC and ATO accumulation in the bone, which is 6.7 and 7.9 times more than untargeted NP. Finally, MDS mouse model treated with BTNPs showed better restoration of complete blood count to normal level, and significantly longer median survival as compared to free drugs or untargeted NPs treatment. Our results support bone-targeted co delivery of DAC and ATO for effective treatment of MDS. PMID- 29042325 TI - Characterize a typically Dscam with alternative splicing in mud crab Scylla paramamosain. AB - As a member of the immunoglobulin superfamily, Down syndrome cell adhesion molecule (Dscam) could function in the innate immunity of invertebrates. Recently, it is shown that arthropod Dscams play similar functions as antibodies in the adaptive immune system. Dscam could produce thousands of isoforms by alternative splicing and specifically bind to various pathogens. In the present study, we cloned the first Dscam from mud crab Scylla paramamosain (SpDscam), with full-length cDNA 7363 bp containing an open reading frame (ORF) of 6069bp and encoding 2022 amino acids, which had typical domain architecture as other arthropods, i.e., 10 immunoglobulin domains (Ig), 6 fibronectin type 3 domains (FN III), transmembrane and cytoplasmic tail. Quantitative real-time PCR revealed that SpDscam was highly expressed in brain, skin, muscle, intestine and hepatopancreas, but weakly expressed in hemolymph, heart and gill. SpDscam had three alternative splicing regions, located at the N-terminal of Ig2 and Ig3 as well as on the whole Ig7. In these regions, 32, 41 and 14 exons were detected, together with the two exon types of transmembrane domain, indicating SpDscam could potentially encode at least 36,736 unique isoforms. SpDscam induced by Vibrio parahaemolyticus challenge had strong binding ability to V. parahaemolyticus. Further, SpDscam induced by V. parahaemolyticus possessed a clearance of V. parahaemolyticus in S. paramamosain. Collectively, the results indicated SpDscam was a hypervariable pattern-recognition receptor (PRR) by alternative splicing in innate immunity system of mud crab S. paramamosain. PMID- 29042327 TI - Research, regulatory, and clinical decision-making: the importance of scientific integrity. PMID- 29042328 TI - Ruptured Persistent Trigeminal Artery Causing Direct Cavernous Sinus Fistula Treated with Pipeline Embolization and Minimal Coiling. AB - BACKGROUND: Rupture of a persistent trigeminal artery associated with development of a cavernous sinus fistula in a traumatic setting is rare. These arteries are typically treated with coil embolization of the cavernous sinus. CASE DESCRIPTION: We present the case of a 42-year-old woman who developed a direct cavernous carotid fistula after a motor vehicle accident. Angiographic imaging revealed a rupture point of a persistent trigeminal artery as it connected with the cavernous segment of the internal carotid artery, causing a cavernous sinus fistula. Coiling of the cavernous sinus was abandoned after placement of 1 coil because of coil herniation into the internal carotid artery. A Pipeline embolization device was placed to oppose the coil against the intima and keep the lumen open. The combination of coil embolization and flow diversion acutely decreased the fistulous flow. Surprisingly, an angiographic follow-up at 6 months showed complete fistula occlusion despite placement of only 1 coil into the cavernous sinus. CONCLUSIONS: We report a rare case where undercoiling of the cavernous sinus occluded a cavernous sinus fistula because of the adjunct use of a Pipeline embolization device in the presence of a traumatic rupture of a persistent trigeminal artery. PMID- 29042329 TI - Rare Giant Prevertebral Thoracic Myelomeningocele. AB - Here we report a 72-year-old man who presented with complaint of sudden-onset weakness and impaired sensation in the left lower extremity. Radiographic evaluation revealed a congenital malformation with multiple formation defects including a giant thoracic prevertebral myelomeningocele. Following microsurgical detethering of the spinal cord, the patient recovered ambulation with assist. While thoracic myelomeningoceles are themselves rare, in this case the patient presented at a late age and responded well to conservative management. PMID- 29042330 TI - First Depiction of Flow Voids to Differentiate Pituicytomas from Giant Adenomas. AB - Pituicytomas are rare low-grade glial lesions of neurohypophysis or adenohypophysis. They are often misdiagnosed as adenomas due to their similar morphology. Previous reports have underlined their nonspecific aspect. In our experience, presence of flow voids on magnetic resonance, which usually indicate hypervascularized tumors with strong arterial supply, may be a useful sign to identify pituicytomas. Unlike adenomas, pituicytomas are highly vascularized tumors. Second, we emphasize the strong enhancement of these tumors when compared with normal hypophysis, which may be another sign of their hypervascularization. Indeed, adenomas, on the opposite side, present less enhancement than normal hypophysis. This observation is corroborated by previous histologic studies that showed adenomas present less vascular density than normal pituitary glands. However, in large tumors, the normal hypophysis can sometimes not be individualized and thus the enhancement gradient between the tumor and normal tissue cannot be properly assessed. Due to their rarity, no previous reports had ever emphasized the specific signs that could allow us to differentiate pituicytomas from adenomas; however, it seems crucial due to the potential hemorrhagic complications of pituicytoma surgery. PMID- 29042326 TI - The molecular and cellular basis of rhodopsin retinitis pigmentosa reveals potential strategies for therapy. AB - Inherited mutations in the rod visual pigment, rhodopsin, cause the degenerative blinding condition, retinitis pigmentosa (RP). Over 150 different mutations in rhodopsin have been identified and, collectively, they are the most common cause of autosomal dominant RP (adRP). Mutations in rhodopsin are also associated with dominant congenital stationary night blindness (adCSNB) and, less frequently, recessive RP (arRP). Recessive RP is usually associated with loss of rhodopsin function, whereas the dominant conditions are a consequence of gain of function and/or dominant negative activity. The in-depth characterisation of many rhodopsin mutations has revealed that there are distinct consequences on the protein structure and function associated with different mutations. Here we categorise rhodopsin mutations into seven discrete classes; with defects ranging from misfolding and disruption of proteostasis, through mislocalisation and disrupted intracellular traffic to instability and altered function. Rhodopsin adRP offers a unique paradigm to understand how disturbances in photoreceptor homeostasis can lead to neuronal cell death. Furthermore, a wide range of therapies have been tested in rhodopsin RP, from gene therapy and gene editing to pharmacological interventions. The understanding of the disease mechanisms associated with rhodopsin RP and the development of targeted therapies offer the potential of treatment for this currently untreatable neurodegeneration. PMID- 29042331 TI - The First Experience of Triple Nerve Transfer in Proximal Radial Nerve Palsy. AB - BACKGROUND: Injury to distal portion of posterior cord of brachial plexus leads to palsy of radial and axillary nerves. Symptoms are usually motor deficits of the deltoid muscle; triceps brachii muscle; and extensor muscles of the wrist, thumb, and fingers. Tendon transfers, nerve grafts, and nerve transfers are options for surgical treatment of proximal radial nerve palsy to restore some motor functions. Tendon transfer is painful, requires a long immobilization, and decreases donor muscle strength; nevertheless, nerve transfer produces promising outcomes. We present a patient with proximal radial nerve palsy following a blunt injury undergoing triple nerve transfer. CASE DESCRIPTION: The patient was involved in a motorcycle accident with complete palsy of the radial and axillary nerves. After 6 months, on admission, he showed spontaneous recovery of axillary nerve palsy, but radial nerve palsy remained. We performed triple nerve transfer, fascicle of ulnar nerve to long head of the triceps branch of radial nerve, flexor digitorum superficialis branch of median nerve to extensor carpi radialis brevis branch of radial nerve, and flexor carpi radialis branch of median nerve to posterior interosseous nerve, for restoration of elbow, wrist, and finger extensions, respectively. CONCLUSIONS: Our experience confirmed functional elbow, wrist, and finger extensions in the patient. Triple nerve transfer restores functions of the upper limb in patients with debilitating radial nerve palsy after blunt injuries. PMID- 29042332 TI - The Relevance of Simpson Grade Resections in Modern Neurosurgical Treatment of World Health Organization Grade I, II, and III Meningiomas. AB - OBJECTIVE: The Simpson grading system has played an important role in surgical resections of meningiomas. The aim of this study was to determine if this grading system predicts meningioma recurrence in a modern cohort of patients with tumors of all World Health Organization grades. METHODS: Adult patients who underwent primary, nonbiopsy resection of a meningioma at a tertiary care institution between 2007 and 2015 were retrospectively reviewed. Stepwise multivariate proportional hazard analyses were used to identify associations with recurrence after resection. Log-rank analyses were used to compare Kaplan-Meier plots for time to recurrence between each Simpson grade. RESULTS: Of 572 patients who met inclusion criteria, 72 (12.6%) presented with recurrence. Factors associated with recurrence after gross total resection (Simpson grades I-III) were non-World Health Organization grade I (hazard ratio [HR] [95% confidence interval (CI)] 6.215 [2.864-12.419], P < 0.0001) and preoperative neurologic deficits (HR [95% CI] 2.862 [1.512-5.499], P = 0.001). Factors associated with recurrence after subtotal resections (Simpson IV) were African American race (HR [95% CI] 2.776 [1.232-5.890], P = 0.02) and parafalcine location (HR [95% CI] 3.956 [1.624 8.775], P = 0.004). Simpson grade was not an independent risk factor for recurrence. CONCLUSIONS: Identification and consideration of factors associated with recurrence after gross total or subtotal resections may help guide treatment strategies for patients with meningiomas. PMID- 29042333 TI - Postoperative Intravenous Acetaminophen for Craniotomy Patients: A Randomized Controlled Trial. AB - OBJECTIVE: To determine whether opioids during the first 24 postoperative hours were significantly altered when receiving intravenous (IV) acetaminophen during that time compared with those receiving placebo (normal saline). METHODS: One hundred forty patients undergoing any type of craniotomy were randomly assigned to receive either 1 g of IV acetaminophen or placebo upon surgical closure, and every 6 hours thereafter, up to 18 hours postoperatively. Analgesic requirements for the first 24 postoperative hours were recorded. Time to rescue medications in the postanesthesia care unit (PACU)/intensive care unit (ICU), amount of rescue medication, ICU and hospital lengths of stay, number of successful neurological examinations, sedation, delirium, satisfaction, and visual analog scale pain scores were also recorded. RESULTS: Compared with the placebo group, more patients in the IV acetaminophen group (10/66 [15.2%] vs. 4/65 [6.2%] in the placebo group) did not require opioids within the first 24 postoperative hours, but this did not reach significance (odds ratio, -9.0%, 95% confidence interval 20.5% to 1.8%; P = 0.166). Both groups had similar times to rescue medications, amounts of rescue medications, ICU and hospital lengths of stay, numbers of successful neurological examinations, sedation, delirium, satisfaction scores, visual analog scale pain scores, and temperatures within the first 24 postoperative hours. CONCLUSIONS: The opioid requirements within the first 24 postoperative hours were similar in the placebo and acetaminophen groups. This study is informative for the design and planning of future studies investigating the management of postoperative pain in patients undergoing craniotomies. PMID- 29042334 TI - Primary Diffuse Large B-Cell Lymphoma in a Patient with Rubinstein-Taybi Syndrome: Case Report and Review of the Literature. AB - BACKGROUND: Rubinstein-Taybi syndrome (RSTS) is a rare, congenital syndrome that is known to be associated with neoplasms of various organ systems. Evaluation and treatment of such patients is challenging, given the cognitive delay and heterogeneity of pathologic presentations that define this syndrome. CASE DESCRIPTION: Presented here is a case of a patient with RSTS, diagnosed at birth, who presented with subtle symptoms of lethargy and a change in behavior. He was found to have a large (7.0-cm * 4.7-cm), right-sided brain mass that was eventually diagnosed as a primary central nervous system lymphoma. CONCLUSIONS: To the best of our knowledge, this is the first reported case of a primary central nervous system lymphoma presenting in a patient with RSTS. This was confirmed through microscopic and histologic studies. The large size attained by this mass in our patient highlights the increased scrutiny and surveillance needed to provide the best care for these patients. A multidisciplinary team approach is ideal as successful treatment of our patient using surgical debulking, appropriate chemotherapy, and close postoperative follow-up has resulted in an excellent clinical outcome. PMID- 29042335 TI - Neurosurgical Resident Error: A Survey of U.S. Neurosurgery Residency Training Program Directors' Perceptions. AB - BACKGROUND: Efforts to address resident errors and to enhance patient safety have included systemic reforms, such as the Accreditation Council for Graduate Medical Education's (ACGME's) mandated duty-hour restrictions, and specialty-specific initiatives such as the neurosurgery Milestone Project. However, there is currently little data describing the basis for these errors or outlining trends in neurosurgical resident error. METHODS: An online questionnaire was distributed to program directors of 108 U.S. neurosurgery residency training programs to assess the frequency, most common forms and causes of resident error, the resulting patient outcomes, and the steps taken by residency programs to address these errors. RESULTS: Thirty-one (28.7%) responses were received. Procedural/surgical error was the most commonly observed type of error. Transient injury and no injury to the patient were perceived to be the 2 most frequent outcomes. Inexperience or resident mistake despite adequate training were cited as the most common causes of error. Twenty-three (74.2%) respondents stated that a lower post graduate year level correlated with an increased incidence of errors. There was a trend toward an association between an increased number of residents within a program and the number of errors attributable to a lack of supervision (r = 0.36; P = 0.06). Most (93.5%) program directors do not believe that mandated duty-hour restrictions reduce error frequency. CONCLUSIONS: Program directors believe that procedural error is the most commonly observed form of error, with post graduate year level believed to be an important predictor of error frequency. The perceived utility of systemic reforms that aim to reduce the incidence of resident error remains unclear. PMID- 29042336 TI - Physicochemical properties of inclusion complexes of highly soluble beta cyclodextrins with highly hydrophobic testosterone propionate. AB - Hydroxypropyl-beta-cyclodextrin (HP-beta-CyD) and sulfobutyl ether-beta cyclodextrin (SBE-beta-CyD) were used to generate hydrophilic complexes of the poorly water-soluble drug testosterone propionate (TP). The inclusion complexes were obtained by freeze-drying, and then analyzed at both liquid and solid states. Phase solubility studies, performed according to the type-AL solubility diagrams of TP in presence of both CyDs, suggested the formation of water-soluble complexes at 1:1 molar ratio. These results were confirmed by continuous variation method (Job's plot). Both CyDs increased water-solubility of TP 100 fold as compared to the native drug. The host-guest arrangement of CyD complexes in a water solution was further investigated by one- and two-dimensional NMR spectroscopy, highlighting the insertion of the tetracyclic ring of TP into the CyD cavity, and the interaction of the pending ester chain of drug with the primary hydroxyl groups of CyDs at the narrow end of the toroid structure. In solid phase, FTIR-ATR spectroscopy showed that the CO stretching mode of the TP vibrational spectrum changed if the complex between the drug and CyDs occurred. This change is temperature-dependent, and its evolution, accounted for by deconvolution procedures, provided the thermodynamic parameters explaining the mechanisms involved in the formation of inclusion complexes. PMID- 29042337 TI - PLGA-PEG nanoparticles for targeted delivery of the mTOR/PI3kinase inhibitor dactolisib to inflamed endothelium. AB - Dactolisib (NVP-BEZ235, also referred to as: 'BEZ235' or 'BEZ') is a dual mTOR/PI3K inhibitor that is of potential interest in the treatment of inflammatory disorders. This work focuses on formulation of BEZ-loaded polymeric nanoparticles composed of a blend of poly(D,L-lactide-co-glycolide) (PLGA) and poly(D,L-lactide-co-glycolide)-poly(ethylene glycol)-2000 (PLGA-PEG). The nanoparticles were prepared by an oil/water emulsion solvent evaporation method, and were subsequently characterized for yield, encapsulation efficiency, morphology, particle size, drug-polymer interaction and in vitro drug release profiles. A targeted formulation was developed by conjugation of a S-acetyl thioacetyl (SATA)-modified mouse-anti human E-selectin antibody to the distal end of PLGA-PEG-SPDP containing nanoparticles. Our results show the successful preparation of spherical PLGA/PLGA-PEG nanoparticles loaded with BEZ. The particle size distribution showed a range from 250 to 360nm with a high (>75%) BEZ encapsulation efficiency. Approximately 35% of the loaded BEZ was released within 10days at 37 degrees C in a medium containing 5% bovine serum albumin (BSA). Evaluation of efficacy of anti-E-selectin decorated BEZ-loaded nanoparticles was carried out in tumor necrosis factor-alpha (TNF-alpha) activated endothelial cells. Confocal microscopy analysis showed that cellular uptake of the targeted nanoparticles and subsequent internalization. Cell functional assays, including migration assay and phosphowestern blot analysis of the mTOR and pI3K signaling pathways, revealed that the E-selectin targeted nanoparticles loaded with BEZ had a pronounced effect on inflammation-activated endothelial cells as compared to the non-targeted BEZ-loaded nanoparticles. In conclusion, E-selectin targeted nanoparticles have a high potential in delivering the potent mTOR/pI3K inhibitor dactolisib to inflamed endothelial cells and are an interesting nanomedicine for anti-inflammatory therapy. PMID- 29042338 TI - Drug-resistant Mycobacterium tuberculosis: Epidemiology and role of morphological alterations. AB - In this brief review, various forms of drug-resistant tuberculosis (DR-TB) are discussed. The focus of the study is to highlight morphological alterations of DR TB bacilli at the cellular level. PMID- 29042339 TI - Clonal dissemination of OXA-48-producing Enterobacter cloacae isolates from companion animals in Algeria. AB - OBJECTIVES: The aim of this study was to investigate carbapenemase-producing Enterobacteriaceae (CPE) in companion animals. METHODS: Between October 2015 and April 2016, 533 rectal swabs were obtained from healthy and diseased pets in different cities in Algeria. Samples were plated on MacConkey agar supplemented with ertapenem (0.5mg/L). Isolates were identified by matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOF/MS). Antimicrobial susceptibility testing was performed by the disk diffusion method. Carbapenemase, plasmid-mediated AmpC (pAmpC), extended-spectrum beta-lactamase (ESBL) and plasmid-mediated quinolone resistance genes were characterised by PCR. Plasmids were extracted by the Kieser extraction method and were analysed by PCR based replicon typing (PBRT). The epidemiological relationship between Enterobacter cloacae isolates was determined by random amplified polymorphic DNA (RAPD) analysis and multilocus sequence typing (MLST). RESULTS: From 533 rectal swabs, 12 Enterobacteriaceae (2.3%), including 2 Escherichia coli, 2 Klebsiella pneumoniae and 8 E. cloacae, were recovered from selection plates. The 12 strains were resistant to amoxicillin/clavulanic acid, ticarcillin, piperacillin/tazobactam and ertapenem. All isolates were susceptible to aminoglycosides, imipenem and extended-spectrum cephalosporins. PCR and sequencing identified the blaOXA-48 gene in all isolates. qnrB1 was identified in all E. cloacae isolates. Plasmid analysis showed that the blaOXA-48 gene was localised on a 7-kb untypeable plasmid. RAPD analysis demonstrated the presence of the same profile pattern in the eight E. cloacae isolates. MLST analysis showed that the E. cloacae isolates belonged to ST527. CONCLUSIONS: This study reports for the first time the presence of CPE in horses and pet birds in the world. PMID- 29042340 TI - Mental and Emotional Self-Help Technology Apps: Cross-Sectional Study of Theory, Technology, and Mental Health Behaviors. AB - BACKGROUND: Mental and emotional self-help apps have emerged as potential mental illness prevention and treatment tools. The health behavior theory mechanisms by which these apps influence mental health-related behavior change have not been thoroughly examined. OBJECTIVE: The objective of this study was to examine the association between theoretical behavior change mechanisms and use of mental and emotional self-help apps and whether the use of such apps is associated with mental health behaviors. METHODS: This study utilized a cross-sectional survey of 150 users of mental or emotional health apps in the past 6 months. Survey questions included theory-based items, app engagement and likeability items, and behavior change items. Stata version 14 was used to calculate all statistics. Descriptive statistics were calculated for each of the demographic, theory, engagement, and behavior variables. Multiple regression analysis was used to identify factors associated with reported changes in theory and separately for reported changes in actual behavior after controlling for potentially confounding variables. RESULTS: Participants reported that app use increased their motivation, desire to set goals, confidence, control, and intentions to be mentally and emotionally healthy. Engagement (P<.001) was positively associated with the reported changes in theory items, whereas perceived behavior change was positively associated with theory (P<.001), engagement (P=.004), frequency of use of apps (P=.01), and income (P=.049). CONCLUSIONS: Participants reported that app use increased their motivation, desire to set goals, confidence, control, and intentions to be mentally and emotionally healthy. This increase in perceptions, beliefs, and attitudes surrounding their mental and emotional health was considerably associated with perceived change in behavior. There was a positive association between the level of engagement with the app and the impact on theory items. Future efforts should consider the value of impacting key theoretical constructs when designing mental and emotional health apps. As apps are evaluated and additional theory-based apps are created, cost-effective self-help apps may become common preventative and treatment tools in the mental health field. PMID- 29042341 TI - Pain Self-Management for Veterans: Development and Pilot Test of a Stage-Based Mobile-Optimized Intervention. AB - BACKGROUND: Chronic pain is a significant public health burden affecting more Americans than cardiovascular disease, diabetes, and cancer combined. Veterans are disproportionately affected by chronic pain. Among previously deployed soldiers and veterans, the prevalence of chronic pain is estimated between 44% and 60%. OBJECTIVE: The objective of this research was to develop and pilot-test Health eRide: Your Journey to Managing Pain, a mobile pain self-management program for chronic musculoskeletal pain for veterans. Based on the transtheoretical model of behavior change, the intervention is tailored to veterans' stage of change for adopting healthy strategies for pain self management and their preferred strategies. It also addresses stress management and healthy sleep, two components of promising integrated treatments for veterans with pain and co-occurring conditions, including posttraumatic stress disorder (PTSD) and traumatic brain injury. In addition, Health eRide leverages gaming principles, text messaging (short message service, SMS), and social networking to increase engagement and retention. METHODS: Pilot test participants were 69 veterans recruited in-person and by mail at a Veterans Health Administration facility, by community outreach, and by a Web-based survey company. Participants completed a mobile-delivered baseline assessment and Health eRide intervention session. During the next 30 days, they had access to a Personal Activity Center with additional stage-matched activities and information and had the option of receiving tailored text messages. Pre-post assessments, administered at baseline and the 30-day follow-up, included measures of pain, pain impact, use of pain self-management strategies, PTSD, and percentage in the Action or Maintenance stage for adopting pain self-management, managing stress, and practicing healthy sleep habits. Global impressions of change and program acceptability and usability were also assessed at follow-up. RESULTS: Among the 44 veterans who completed the 30-day post assessment, there were statistically significant pre post reductions in pain (P<.001) and pain impact (P<.001); there was some reduction in symptoms of PTSD (P=.05). There were significant pre-post increases in the percentage of participants in the Action or Maintenance stage for adopting pain self-management (P=.01) and for managing stress (P<.001) but not for practicing healthy sleep habits (P=.11). The global impressions of change measure showed that a majority had experienced some level of improvement. User ratings of acceptability were quite high; ratings of usability fell slightly below the mean for digital programs. CONCLUSIONS: Preliminary data demonstrate the potential impact of the Health eRide program for chronic musculoskeletal pain for veterans. The results underscore that simultaneously addressing other behaviors may be a promising approach to managing pain and comorbid conditions. Additional formative research is required to complete development of the Health eRide program and to address areas of usability requiring improvement. A randomized trial with longer follow-up is needed to demonstrate the program's long-term effects on pain and pain self-management. PMID- 29042342 TI - Reduction in Fall Rate in Dementia Managed Care Through Video Incident Review: Pilot Study. AB - BACKGROUND: Falls of individuals with dementia are frequent, dangerous, and costly. Early detection and access to the history of a fall is crucial for efficient care and secondary prevention in cognitively impaired individuals. However, most falls remain unwitnessed events. Furthermore, understanding why and how a fall occurred is a challenge. Video capture and secure transmission of real world falls thus stands as a promising assistive tool. OBJECTIVE: The objective of this study was to analyze how continuous video monitoring and review of falls of individuals with dementia can support better quality of care. METHODS: A pilot observational study (July-September 2016) was carried out in a Californian memory care facility. Falls were video-captured (24*7), thanks to 43 wall-mounted cameras (deployed in all common areas and in 10 out of 40 private bedrooms of consenting residents and families). Video review was provided to facility staff, thanks to a customized mobile device app. The outcome measures were the count of residents' falls happening in the video-covered areas, the acceptability of video recording, the analysis of video review, and video replay possibilities for care practice. RESULTS: Over 3 months, 16 falls were video-captured. A drop in fall rate was observed in the last month of the study. Acceptability was good. Video review enabled screening for the severity of falls and fall-related injuries. Video replay enabled identifying cognitive-behavioral deficiencies and environmental circumstances contributing to the fall. This allowed for secondary prevention in high-risk multi-faller individuals and for updated facility care policies regarding a safer living environment for all residents. CONCLUSIONS: Video monitoring offers high potential to support conventional care in memory care facilities. PMID- 29042343 TI - Systems-Based Training in Graduate Medical Education for Service Learning in the State Legislature in the United States: Pilot Study. AB - BACKGROUND: There is a dearth of advocacy training in graduate medical education in the United States. To address this void, the Legislative Education and Advocacy Development (LEAD) course was developed as an interprofessional experience, partnering a cohort of pediatrics residents, fourth-year medical students, and public health students to be trained in evidence-informed health policy making. OBJECTIVE: The objective of our study was to evaluate the usefulness and acceptability of a service-based legislative advocacy course. METHODS: We conducted a pilot study using a single-arm pre-post study design with 10 participants in the LEAD course. The course's didactic portion taught learners how to define policy problems, research the background of the situation, brainstorm solutions, determine evaluation criteria, develop communication strategies, and formulate policy recommendations for state legislators. Learners worked in teams to create and present policy briefs addressing issues submitted by participating Illinois State legislators. We compared knowledge and attitudes of learners from pre- and postcourse surveys. We obtained qualitative feedback from legislators and pediatric residency directors. RESULTS: Self-reported understanding of the health care system increased (mean score from 4 to 3.3, P=.01), with answers scored from 1=highly agree to 5=completely disagree. Mean knowledge-based scores improved (6.8/15 to 12.0/15 correct). Pediatric residency program directors and state legislators provided positive feedback about the LEAD course. CONCLUSIONS: Promising results were demonstrated for the LEAD approach to incorporate advocacy training into graduate medical education. PMID- 29042344 TI - Mommio's Recipe Box: Assessment of the Cooking Habits of Mothers of Preschoolers and Their Perceptions of Recipes for a Video Game. AB - BACKGROUND: Vegetables are an important part of a healthy diet because they help prevent several chronic diseases. Mothers of preschoolers reported difficulty getting their young children to eat vegetables, and many did not know how to cook child-pleasing recipes. OBJECTIVE: The cooking habits of mothers of preschoolers, their perceptions of recipes designed for their children, and the involvement of their children in food preparation were assessed to inform a food parenting video game called Mommio. METHODS: A cross-sectional survey design was used. Eligibility criteria included mothers of 3- to 5-year-old children who reported difficulty getting their children to eat vegetables. Participants completed a demographic questionnaire with questions about their food preparation practices. They were asked to select up to 4 of the 10 provided recipes they wanted to try and to prepare and report back on their experiences. RESULTS: Most (46) of the 50 recipes included in Mommio's in-game recipe box were evaluated at least once and some up to 5 times with a total of 85 evaluations. This well-educated, mostly employed, sample of 27 mothers of preschoolers preferred simple, quick recipes. They ate primarily at home, made dinners from scratch, and indicated that the 46 recipes were generally simple, quick, and easy to prepare. Involvement in preparation enhanced their child's acceptance of the food. Prior food and preparation preferences influenced the children's acceptance of the dish at the ensuing meal. CONCLUSIONS: The high rate of home recipe preparation indicated that including a recipe selection and preparation component in a food parenting video game could be attractive and may enhance effectiveness. Mothers reported that the recipes provided were generally easy to prepare, tasted good, and the instructions were easy to understand, suggesting they could be helpful to the mothers when playing a vegetable parenting game. Some mothers reported that involving their children in recipe preparation influenced their children's willingness to eat the vegetables. The highest rated recipes are being included in the game, and mothers will be encouraged to involve their children in recipe preparation. PMID- 29042347 TI - Online screening test for depression is inappropriate. PMID- 29042345 TI - The Association of Patient Factors, Digital Access, and Online Behavior on Sustained Patient Portal Use: A Prospective Cohort of Enrolled Users. AB - BACKGROUND: As electronic health records and computerized workflows expand, there are unprecedented opportunities to digitally connect with patients using secure portals. To realize the value of patient portals, initial reach across populations will need to be demonstrated, as well as sustained usage over time. OBJECTIVE: The study aim was to identify patient factors associated with short term and long-term portal usage after patients registered to access all portal functions. METHODS: We prospectively followed a cohort of patients at a large Department of Veterans Affairs (VA) health care facility who recently completed identity proofing to use the VA patient portal. Information collected at baseline encompassed patient factors potentially associated with portal usage, including: demographics, Internet access and use, health literacy, patient activation, and self-reported health conditions. The primary outcome was the frequency of portal log-ins during 6-month and 18-month time intervals after study enrollment. RESULTS: A total of 270 study participants were followed prospectively. Almost all participants (260/268, 97.0%) reported going online, typically at home (248/268, 92.5%). At 6 months, 84.1% (227/270) of participants had visited the portal, with some variation in usage across demographic and health-related subgroups. There were no significant differences in portal log-ins by age, gender, education, marital status, race/ethnicity, distance to a VA facility, or patient activation measure. Significantly higher portal usage was seen among participants using high-speed broadband at home, greater self-reported ability using the Internet, and routinely going online. By 18 months, 91% participants had logged in to the portal, and no significant associations were found between usage and demographics, health status, or patient activation. When examining portal activity between 6 and 18 months, patients who were infrequent or high portal users remained in those categories, respectively. CONCLUSIONS: Short-term and long-term portal usage was associated with having broadband at home, high self-rated ability when using the Internet, and overall online behavior. Digital inclusion, or ready access to the Internet and digital skills, appears to be a social determinant in patient exposure to portal services. PMID- 29042348 TI - The future of the Quality and Outcomes Framework in England. PMID- 29042349 TI - A junior doctor by any other name. PMID- 29042351 TI - Health leaders blame addiction for US opioid crisis. PMID- 29042352 TI - Using the power of the media to reduce the risk of suicide. PMID- 29042353 TI - Will markets be master or servant to health at the World Bank? PMID- 29042355 TI - In This Issue: October. PMID- 29042354 TI - Comparison Between Patent Ductus Arteriosus Stent and Modified Blalock-Taussig Shunt as Palliation for Infants With Ductal-Dependent Pulmonary Blood Flow: Insights From the Congenital Catheterization Research Collaborative. AB - BACKGROUND: Infants with ductal-dependent pulmonary blood flow may undergo palliation with either a patent ductus arteriosus (PDA) stent or a modified Blalock-Taussig (BT) shunt. A balanced multicenter comparison of these 2 approaches is lacking. METHODS: Infants with ductal-dependent pulmonary blood flow palliated with either a PDA stent or a BT shunt from January 2008 to November 2015 were reviewed from the 4 member centers of the Congenital Catheterization Research Collaborative. Outcomes were compared by use of propensity score adjustment to account for baseline differences between groups. RESULTS: One hundred six patients with a PDA stent and 251 patients with a BT shunt were included. The groups differed in underlying anatomy (expected 2 ventricle circulation in 60% of PDA stents versus 45% of BT shunts; P=0.001) and presence of antegrade pulmonary blood flow (61% of PDA stents versus 38% of BT shunts; P<0.001). After propensity score adjustment, there was no difference in the hazard of the primary composite outcome of death or unplanned reintervention to treat cyanosis (hazard ratio, 0.8; 95% confidence interval [CI], 0.52-1.23; P=0.31). Other reinterventions were more common in the PDA stent group (hazard ratio, 29.8; 95% CI, 9.8-91.1; P<0.001). However, the PDA stent group had a lower adjusted intensive care unit length of stay (5.3 days [95% CI, 4.2-6.7] versus 9.19 days [95% CI, 7.9-10.6]; P<0.001), a lower risk of diuretic use at discharge (odds ratio, 0.4; 95% CI, 0.25-0.64; P<0.001) and procedural complications (odds ratio, 0.4; 95% CI, 0.2-0.77; P=0.006), and larger (152 mm2/m2 [95% CI, 132-176] versus 125 mm2/m2 [95% CI, 113-138]; P=0.029) and more symmetrical (symmetry index, 0.84 [95% CI, 0.8-0.89] versus 0.77 [95% CI, 0.75-0.8]; P=0.008] pulmonary arteries at the time of subsequent surgical repair or last follow-up. CONCLUSIONS: In this multicenter comparison of palliative PDA stent and BT shunt for infants with ductal-dependent pulmonary blood flow adjusted for differences in patient factors, there was no difference in the primary end point, death or unplanned reintervention to treat cyanosis. However, other markers of morbidity and pulmonary artery size favored the PDA stent group, supporting PDA stent as a reasonable alternative to BT shunt in select patients. PMID- 29042356 TI - State of health and care in England. PMID- 29042357 TI - David Oliver: Challenging the victim narrative about NHS doctors. PMID- 29042359 TI - Focus on physical activity can help avoid unnecessary social care. PMID- 29042358 TI - Safety, immunogenicity and efficacy after switching from reference infliximab to biosimilar SB2 compared with continuing reference infliximab and SB2 in patients with rheumatoid arthritis: results of a randomised, double-blind, phase III transition study. AB - OBJECTIVES: Efficacy, safety and immunogenicity results from the phase III study of SB2, a biosimilar of reference infliximab (INF), were previously reported through 54 weeks. This transition period compared results in patients with rheumatoid arthritis (RA) who switched from INF to SB2 with those in patients who maintained treatment with INF or SB2. METHODS: Patients with moderate to severe RA despite methotrexate treatment were randomised (1:1) to receive SB2 or INF at weeks 0, 2 and 6 and every 8 weeks thereafter until week 46. At week 54, patients previously receiving INF were rerandomised (1:1) to switch to SB2 (INF/SB2 (n=94)) or to continue on INF (INF/INF (n=101)) up to week 70. Patients previously receiving SB2 continued on SB2 (SB2/SB2 (n=201)) up to week 70. Efficacy, safety and immunogenicity were assessed up to week 78. RESULTS: Efficacy was sustained and comparable across treatment groups. American College of Rheumatology (ACR) 20 responses between weeks 54 and 78 ranged from 63.5% to 72.3% with INF/SB2, 66.3%%-69.4% with INF/INF and 65.6%-68.3% with SB2/SB2. Treatment-emergent adverse events during this time occurred in 36.2%, 35.6% and 40.3%, respectively, and infusion-related reactions in 3.2%, 2.0% and 3.5%. Among patients who were negative for antidrug antibodies (ADA) up to week 54, newly developed ADAs were reported in 14.6%, 14.9% and 14.1% of the INF/SB2, INF/INF and SB2/SB2 groups, respectively. CONCLUSIONS: The efficacy, safety and immunogenicity profiles remained comparable among the INF/SB2, INF/INF and SB2/SB2 groups up to week 78, with no treatment-emergent issues or clinically relevant immunogenicity after switching from INF to SB2. TRIAL REGISTRATION NUMBER: NCT01936181; EudraCT number: 2012-005733-37. PMID- 29042361 TI - Sixty seconds on . . . runny eggs. PMID- 29042363 TI - Can we usefully stratify patients according to suicide risk? PMID- 29042362 TI - Comparative safety of direct oral anticoagulants and warfarin in venous thromboembolism: multicentre, population based, observational study. AB - Objective To determine the safety of direct oral anticoagulant (DOAC) use compared with warfarin use for the treatment of venous thromboembolism.Design Retrospective matched cohort study conducted between 1 January 2009 and 31 March 2016.Setting Community based, using healthcare data from six jurisdictions in Canada and the United States.Participants 59 525 adults (12 489 DOAC users; 47 036 warfarin users) with a new diagnosis of venous thromboembolism and a prescription for a DOAC or warfarin within 30 days of diagnosis.Main outcome measures Outcomes included hospital admission or emergency department visit for major bleeding and all cause mortality within 90 days after starting treatment. Propensity score matching and shared frailty models were used to estimate adjusted hazard ratios of the outcomes comparing DOACs with warfarin. Analyses were conducted independently at each site, with meta-analytical methods used to estimate pooled hazard ratios across sites.Results Of the 59 525 participants, 1967 (3.3%) had a major bleed and 1029 (1.7%) died over a mean follow-up of 85.2 days. The risk of major bleeding was similar for DOAC compared with warfarin use (pooled hazard ratio 0.92, 95% confidence interval 0.82 to 1.03), with the overall direction of the association favouring DOAC use. No difference was found in the risk of death (pooled hazard ratio 0.99, 0.84 to 1.16) for DOACs compared with warfarin use. There was no evidence of heterogeneity across centres, between patients with and without chronic kidney disease, across age groups, or between male and female patients.Conclusions In this analysis of adults with incident venous thromboembolism, treatment with DOACs, compared with warfarin, was not associated with an increased risk of major bleeding or all cause mortality in the first 90 days of treatment.Trial registration Clinical trials NCT02833987. PMID- 29042364 TI - A CD200R-CD28 fusion protein appropriates an inhibitory signal to enhance T-cell function and therapy of murine leukemia. AB - Acute myeloid leukemia (AML), the most common adult acute leukemia in the United States, has the poorest survival rate, with 26% of patients surviving 5 years. Adoptive immunotherapy with T cells genetically modified to recognize tumors is a promising and evolving treatment option. However, antitumor activity, particularly in the context of progressive leukemia, can be dampened both by limited costimulation and triggering of immunoregulatory checkpoints that attenuate T-cell responses. Expression of CD200 (OX2), a negative regulator of T cell function that binds CD200 receptor (CD200R), is commonly increased in leukemia and other malignancies and is associated with poor prognosis in leukemia patients. To appropriate and redirect the inhibitory effects of CD200R signaling on transferred CD8+ T cells, we engineered CD200R immunomodulatory fusion proteins (IFPs) with the cytoplasmic tail replaced by the signaling domain of the costimulatory receptor, CD28. An analysis of a panel of CD200R-CD28 IFP constructs revealed that the most effective costimulation was achieved in IFPs containing a dimerizing motif and a predicted tumor-T-cell distance that facilitates localization to the immunological synapse. T cells transduced with the optimized CD200R-CD28 IFPs exhibited enhanced proliferation and effector function in response to CD200+ leukemic cells in vitro. In adoptive therapy of disseminated leukemia, CD200R-CD28-transduced leukemia-specific CD8 T cells eradicated otherwise lethal disease more efficiently than wild-type cells and bypassed the requirement for interleukin-2 administration to sustain in vivo activity. The transduction of human primary T cells with the equivalent human IFPs increased proliferation and cytokine production in response to CD200+ leukemia cells, supporting clinical translation. This trial was registered at www.clinicaltrials.gov as #NCT01640301. PMID- 29042365 TI - Ruxolitinib-induced defects in DNA repair cause sensitivity to PARP inhibitors in myeloproliferative neoplasms. AB - Myeloproliferative neoplasms (MPNs) often carry JAK2(V617F), MPL(W515L), or CALR(del52) mutations. Current treatment options for MPNs include cytoreduction by hydroxyurea and JAK1/2 inhibition by ruxolitinib, both of which are not curative. We show here that cell lines expressing JAK2(V617F), MPL(W515L), or CALR(del52) accumulated reactive oxygen species-induced DNA double-strand breaks (DSBs) and were modestly sensitive to poly-ADP-ribose polymerase (PARP) inhibitors olaparib and BMN673. At the same time, primary MPN cell samples from individual patients displayed a high degree of variability in sensitivity to these drugs. Ruxolitinib inhibited 2 major DSB repair mechanisms, BRCA-mediated homologous recombination and DNA-dependent protein kinase-mediated nonhomologous end-joining, and, when combined with olaparib, caused abundant accumulation of toxic DSBs resulting in enhanced elimination of MPN primary cells, including the disease-initiating cells from the majority of patients. Moreover, the combination of BMN673, ruxolitinib, and hydroxyurea was highly effective in vivo against JAK2(V617F)+ murine MPN-like disease and also against JAK2(V617F)+, CALR(del52)+, and MPL(W515L)+ primary MPN xenografts. In conclusion, we postulate that ruxolitinib-induced deficiencies in DSB repair pathways sensitized MPN cells to synthetic lethality triggered by PARP inhibitors. PMID- 29042366 TI - Emicizumab, a bispecific antibody recognizing coagulation factors IX and X: how does it actually compare to factor VIII? AB - During the last decade, the development of improved and novel approaches for the treatment of hemophilia A has expanded tremendously. These approaches include factor VIII (FVIII) with extended half-life (eg, FVIII-Fc and PEGylated FVIII), monoclonal antibodies targeting tissue factor pathway inhibitor, small interfering RNA to reduce antithrombin expression and the bispecific antibody ACE910/emicizumab. Emicizumab is a bispecific antibody recognizing both the enzyme factor IXa and the substrate factor X. By simultaneously binding enzyme and substrate, emicizumab mimics some part of the function exerted by the original cofactor, FVIII, in that it promotes colocalization of the enzyme substrate complex. However, FVIII and the bispecific antibody are fundamentally different proteins and subject to different modes of regulation. Here, we will provide an overview of the similarities and dissimilarities between FVIII and emicizumab from a biochemical and mechanistical perspective. Such insight might be useful in the clinical decision making for those who apply emicizumab in their practice now or in the future, particularly in view of the thrombotic complications that have been reported when emicizumab is used in combination with FVIII-bypassing agents. PMID- 29042368 TI - Injecting drug use continues in older drug users too. PMID- 29042367 TI - Safety and efficacy of long-term treatment of chronic/persistent ITP with eltrombopag: final results of the EXTEND study. AB - In phase 2/3 trials, eltrombopag treatment of 6 months or less in patients with chronic/persistent immune thrombocytopenia (ITP) increased platelet counts and reduced bleeding. The open-label EXTEND study evaluated long-term safety and efficacy of eltrombopag in adults with ITP who had completed a previous eltrombopag study. For the 302 patients enrolled, median duration of eltrombopag treatment was 2.37 years (2 days-8.76 years). Median platelet counts increased to 50 * 109/L or more by week 2 and were sustained throughout the treatment period. Overall, 259 patients (85.8%) achieved a response (platelet count >=50 * 109/L at least once in the absence of rescue), and 133 (52%) of 257 patients achieved a continuous response of 25 weeks or longer. Responses in patients with platelet counts lower than 15 * 109/L, more previous therapies, and/or splenectomy were somewhat lower. Thirty-four (34%) of 101 patients receiving concomitant ITP medication discontinued 1 or more medication. In patients with assessments, bleeding symptoms (World Health Organization grades 1-4) decreased from 57% at baseline to 16% at 1 year. Forty-one patients (14%) withdrew because of adverse events. Hepatobiliary adverse events (n = 7), cataracts (n = 4), deep vein thrombosis (n = 3), cerebral infarction (n = 2), headache (n = 2), and myelofibrosis (n = 2) occurred in more than 1 patient; the remaining adverse events occurred only once. Rates of thromboembolic events (6%) and hepatobiliary adverse events (15%) did not increase with treatment duration past 1 year. EXTEND demonstrated that long-term use of eltrombopag was effective in maintaining platelet counts of 50 * 109/L or more and reducing bleeding in most patients with ITP of more than 6 months' duration. Important adverse events (eg, thrombosis, hepatobiliary, and bone marrow fibrosis) were infrequent. (ClinicalTrials.gov:NCT00351468). PMID- 29042369 TI - NHS boss reveals loss of further 162 000 pieces of medical correspondence. PMID- 29042370 TI - Mandated reporters' experiences with reporting child maltreatment: a meta synthesis of qualitative studies. AB - OBJECTIVE: To systematically search for research about the effectiveness of mandatory reporting of child maltreatment and to synthesise qualitative research that explores mandated reporters' (MRs) experiences with reporting. DESIGN: As no studies assessing the effectiveness of mandatory reporting were retrieved from our systematic search, we conducted a meta-synthesis of retrieved qualitative research. Searches in Medline (Ovid), Embase, PsycINFO, Cumulative Index to Nursing and Allied Health Literature, Sociological Abstracts, Education Resources Information Center, Criminal Justice Abstracts and Cochrane Library yielded over 6000 citations, which were deduplicated and then screened by two independent reviewers. English-language, primary qualitative studies that investigated MRs' experiences with reporting of child maltreatment were included. Critical appraisal involved a modified checklist from the Critical Appraisal Skills Programme and qualitative meta-synthesis was used to combine results from the primary studies. SETTING: All healthcare and social-service settings implicated by mandatory reporting laws were included. Included studies crossed nine high income countries (USA, Australia, Sweden, Taiwan, Canada, Norway, Finland, Israel and Cyprus) and three middle-income countries (South Africa, Brazil and El Salvador). PARTICIPANTS: The studies represent the views of 1088 MRs. OUTCOMES: Factors that influence MRs' decision to report and MRs' views towards and experiences with mandatory reporting of child maltreatment. RESULTS: Forty-four articles reporting 42 studies were included. Findings indicate that MRs struggle to identify and respond to less overt forms of child maltreatment. While some articles (14%) described positive experiences MRs had with the reporting process, negative experiences were reported in 73% of articles and included accounts of harm to therapeutic relationships and child death following removal from their family of origin. CONCLUSIONS: The findings of this meta-synthesis suggest that there are many potentially harmful experiences associated with mandatory reporting and that research on the effectiveness of this process is urgently needed. PMID- 29042371 TI - Better early functional outcome after short stem total hip arthroplasty? A prospective blinded randomised controlled multicentre trial comparing the Collum Femoris Preserving stem with a Zweymuller straight cementless stem total hip replacement for the treatment of primary osteoarthritis of the hip. AB - OBJECTIVES: Primary aim was to compare the functional results at 3 months and 2 years between short and conventional cementless stem total hip arthroplasty (THA). Secondary aim was to determine the feasibility of a double-blind implant related trial. DESIGN: A prospective blinded randomised controlled multicentre trial in patients with osteoarthritis of the hip. All patients, research assistants, clinical assessors, investigators and data analysts were blinded to the type of prosthesis. POPULATION: 150 patients between 18 and 70 years with osteoarthritis of the hip, 75 in the short stem and 75 in the conventional stem group. Mean age: 60 years (SD 7). INTERVENTIONS: the Collum Femoris Preserving short stem versus the Zweymuller Alloclassic conventional stem. MAIN OUTCOME MEASURES: The Dutch version of the Hip Disability and Osteoarthritis Outcome Score (HOOS). Secondary outcomes measures: Harris Hip Score, the Physical Component Scale of the SF12, the Timed Up and Go test, Pain and the EQ-5D. Feasibility outcomes: continued blinding, protocol adherence and follow-up success rate. RESULTS: No significant difference between the two groups. Mean HOOS total score in the short stem group increased 32.7 points from 36.6 (95% CI 32.9 to 40.2) preoperatively to 69.3 (95% CI 66.4 to 72.1) at 3 months follow-up. Mean HOOS total score in the conventional straight stem group increased 36.3 points from 37.1 (95% CI 33.9 to 40.3) preoperatively to 73.4 (95% CI 70.3 to 76.4) at 3 months follow-up. 91.2% of patients remained blinded at 2 years follow up. Both protocol adherence and follow-up success rate were 98%. CONCLUSIONS: Functional result at 3 months and 2 years after short stem THA is not superior to conventional cementless THA. There were more perioperative and postoperative complications in the short stem group. Direct comparison of two hip implants in a double-blinded randomised controlled trial is feasible. TRIAL REGISTRATION NUMBER: NTR1560. PMID- 29042372 TI - Awareness and willingness towards pre-exposure prophylaxis against HIV infection among individuals seeking voluntary counselling and testing for HIV in Taiwan: a cross-sectional questionnaire survey. AB - OBJECTIVES: We aimed to investigate the awareness and willingness towards pre exposure prophylaxis (PrEP) among individuals seeking voluntary counselling and testing (VCT) for HIV in Taiwan, where PrEP is currently not reimbursed by the insurance. METHODS: Between April and October 2016, a questionnaire interview was conducted among VCT clients to inquire about the attitudes towards PrEP against HIV infection. Multivariate logistic regression analysis was performed to identify the associated factors with willingness to initiate PrEP. RESULTS: During the 6-month period, 1173 VCT clients (99.8%) completed the interviews, with 67.4% being homosexual or bisexual male. While 67.2% of the clients knew of postexposure prophylaxis, 40.2% heard of PrEP. Overall, 546 clients (46.5%) were willing to initiate PrEP and 89.5% of them would choose event-driven PrEP. In multivariate analysis, male gender (OR 1.796; 95% CI 1.165 to 2.768), full-time job (OR 1.354; 95% CI 1.052 to 1.742), one-night stand (OR 1.374; 95% CI 1.043 to 1.810), having casual sex partners within 3 months (OR 1.329; 95% CI 1.031 to 1.714), condomless anal sex (OR 1.405; 95% CI 1.122 to 1.878) and ever having chemsex or attending a drug party in the past 1 year (OR 2.571; 95% CI 1.541 to 4.287), regular screening for HIV infection (OR 1.321; 95% CI 1.021 to 1.711) and knowledge of PrEP (OR 1.504; 95% CI, 1.159 to 1.953) were associated with willingness to initiate PrEP. CONCLUSIONS: Understanding the willingness to initiate PrEP against HIV among the VCT clients in Taiwan, which was associated with male gender, risky sexual behaviours and awareness of PrEP, will help inform the implementation of PrEP programme. PMID- 29042373 TI - Emotional reactions in parents of the youth who experienced the Utoya shooting on 22 July 2011; results from a cohort study. AB - OBJECTIVE AND SETTING: The objective of this study was to provide knowledge about the emotional reactions in parents whose offspring experienced a mass shooting on Utoya island in Norway in 2011. The research questions included whether parents' reactions were influenced by their offspring's symptom level, age, living situation and parental gender. DESIGN: The study was designed as an open cohort study. The data were collected at two time points; 4-5 months and 14-15 months after the shooting. PARTICIPANTS: The participants were 531 parents of youth exposed to the Utoya island attack. OUTCOME MEASURES: The Parental Emotional Reaction Questionnaire measured parents' reactions, and University of California, Los Angeles Post-traumatic Stress Disorder Reaction Index measured youths' post traumatic stress symptoms. RESULTS: Parental emotional reactions were positively related to post-traumatic stress reactions in offspring at wave 1: Est.=0.20, 95% CI 0.10 to 0.30, p<0.001, over time (wave 1and wave 2 nested within individuals): Est.=0.23, CI 0.13 to 0.32, p<0.001, and at wave 2: Est.=0.26, CI 0.12 to 0.39, p<0.001. Youths' age was not significantly related to parental emotional reactions, neither at wave 1: Est.=0.19, CI -0.40 to 0.77, p=0.531, over time: Est.=0.26, CI -0.27 to 0.79, p=328, nor at wave 2: Est.=0.32, CI -0.41 to 1.05, p=0.389. Mothers were more emotionally upset than fathers both at wave 1: Est.= 5.66, CI -7.63 to -3.69, p<0.001, over time: Est.=-5.36, CI -7.18 to -3.55, p<0.001, and at wave 2: Est.=-5.33, CI -7.72 to -2.53, p<0.001. CONCLUSIONS: The findings suggest that parenting after trauma should be addressed in outreach programmes and in planning of healthcare services. PMID- 29042374 TI - 'What does that mean?': a qualitative exploration of the primary and secondary clinical care experiences of young people with continence problems in the UK. AB - OBJECTIVES: To explore the clinical care experiences of young people with continence problems. DESIGN: In-depth semistructured qualitative interviews were conducted by Skype and telephone, with the addition of art-based participatory research techniques. Transcripts were analysed using inductive thematic analysis. SETTING: Primary and secondary care in the UK. PARTICIPANTS: We interviewed 20 participants (9 females, 11 males) aged 11-20 years. There were six participants with bedwetting alone, five with daytime wetting alone, five with combined (day and night) wetting and four with soiling. RESULTS: We identified four themes: appointment experiences, treatment experiences, engagement with treatment and internalisation and externalisation of the continence problem. Patient-focused appointments using age-appropriate language were highly desirable. Continuity of care was highlighted as an important aspect of positive clinical experiences; however, this was found to be rare with many participants seeing a different person on each visit. Participants had tried a wide range of treatments for their continence problems with varying degrees of success. Relapse and treatment failure were common. Experiencing relapse was distressing and diminished participants' belief in the success of future treatments and undermined adherence. Participants would be seen to adopt two opposing coping strategies for dealing with their continence problem- internalisation and externalisation. CONCLUSION: Incontinence in young people is challenging to manage. Young people may need to try a range of treatments before their symptoms improve. Due to challenges in treatment, there is an increased risk of poor adherence. During patient-focused appointments, clinicians should work to build rapport with patients and use age-appropriate language. Involving young people in their own care decisions is important. The way in which young people understand their continence problem can influence their coping strategies and adherence to treatment regimes. PMID- 29042375 TI - Non-invasive brain stimulation interventions for management of chronic central neuropathic pain: a scoping review protocol. AB - INTRODUCTION: Pain can affect people regardless of age, gender or ethnicity. Chronic central neuropathic pain (CCNP) is a debilitating condition that affects populations such as stroke survivors, amputees, spinal cord injury patients and patients with multiple sclerosis, with prevalence rates between 30% and 80%. This condition can be caused by a lesion or disease affecting the somatosensory system. CCNP is notoriously drug resistant, and few effective CCNP treatment or management strategies exist. The emergence of non-invasive brain stimulation and neuromodulation techniques provide novel avenues for managing chronic central neuropathic pain. This scoping review aims to systematically identify the methods and effectiveness of non-invasive brain stimulation techniques for treating and managing chronic central neuropathic pain. METHODS AND ANALYSIS: The following databases will be searched systematically: PubMed, EMBASE, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Institute of Electric and Electronic Engineers (IEEE), Association of Computing Machinary (ACM) and Scopus. Additional literature will be identified by searching the reference lists of identified studies. Studies will include reviews and original research in both published and grey literatures. Two reviewers will independently screen identified studies for final inclusion. A quantitative analysis on the intervention type, application and efficacy will be synthesised along with a qualitative analysis to describe the effectiveness of each intervention. ETHICS AND DISSEMINATION: No primary data will be collected and hence formal ethics review is not required. The results of the scoping review will be presented at relevant national and international conferences, published in a peer-reviewed journal and provided to the stakeholders with plain language to be posted on their websites. This scoping review will provide a foundation to guide the development of future primary research on non-invasive brain stimulation and CCNP. PMID- 29042377 TI - Effectiveness and meaningful use of paediatric surgical safety checklists and their implementation strategies: a systematic review with narrative synthesis. AB - OBJECTIVE: To examine the effectiveness and meaningful use of paediatric surgical safety checklists (SSCs) and their implementation strategies through a systematic review with narrative synthesis. SUMMARY BACKGROUND DATA: Since the launch of the WHO SSC, checklists have been integrated into surgical systems worldwide. Information is sparse on how SSCs have been integrated into the paediatric surgical environment. METHODS: A broad search strategy was created using Pubmed, Embase, CINAHL, Cochrane Central, Web of Science, Science Citation Index and Conference Proceedings Citation Index. Abstracts and full texts were screened independently, in duplicate for inclusion. Extracted study characteristic and outcomes generated themes explored through subgroup analyses and idea webbing. RESULTS: 1826 of 1921 studies were excluded after title and abstract review (kappa 0.77) and 47 after full-text review (kappa 0.86). 20 studies were of sufficient quality for narrative synthesis. Clinical outcomes were not affected by SSC introduction in studies without implementation strategies. A comprehensive SSC implementation strategy in developing countries demonstrated improved outcomes in high-risk surgeries. Narrative synthesis suggests that meaningful compliance is inconsistently measured and rarely achieved. Strategies involving feedback improved compliance. Stakeholder-developed implementation strategies, including team-based education, achieved greater acceptance. Three studies suggest that parental involvement in the SSC is valued by parents, nurses and physicians and may improve patient safety. CONCLUSIONS: A SSC implementation strategy focused on paediatric patients and their families can achieve high acceptability and good compliance. SSCs' role in improving measures of paediatric surgical outcome is not well established, but they may be effective when used within a comprehensive implementation strategy especially for high-risk patients in low-resource settings. PMID- 29042376 TI - Protocol for a cohort study of adolescent mental health service users with a nested cluster randomised controlled trial to assess the clinical and cost effectiveness of managed transition in improving transitions from child to adult mental health services (the MILESTONE study). AB - INTRODUCTION: Disruption of care during transition from child and adolescent mental health services (CAMHS) to adult mental health services may adversely affect the health and well-being of service users. The MILESTONE (Managing the Link and Strengthening Transition from Child to Adult Mental Healthcare) study evaluates the longitudinal course and outcomes of adolescents approaching the transition boundary (TB) of their CAMHS and determines the effectiveness of the model of managed transition in improving outcomes, compared with usual care. METHODS AND ANALYSIS: This is a cohort study with a nested cluster randomised controlled trial. Recruited CAMHS have been randomised to provide either (1) managed transition using the Transition Readiness and Appropriateness Measure score summary as a decision aid, or (2) usual care for young people reaching the TB. Participants are young people within 1 year of reaching the TB of their CAMHS in eight European countries; one parent/carer and a CAMHS clinician for each recruited young person; and adult mental health clinician or other community based care provider, if young person transitions. The primary outcome is Health of the Nation Outcome Scale for Children and Adolescents (HoNOSCA) measuring health and social functioning at 15 months postintervention. The secondary outcomes include mental health, quality of life, transition experience and healthcare usage assessed at 9, 15 and 24 months postintervention. With a mean cluster size of 21, a total of 840 participants randomised in a 1:2 intervention to control are required, providing 89% power to detect a difference in HoNOSCA score of 0.30 SD. The addition of 210 recruits for the cohort study ensures sufficient power for studying predictors, resulting in 1050 participants and an approximate 1:3 randomisation. ETHICS AND DISSEMINATION: The study protocol was approved by the UK National Research Ethics Service (15/WM/0052) and equivalent ethics boards in participating countries. Results will be reported at conferences, in peer-reviewed publications and to all relevant stakeholder groups. TRIAL REGISTRATION NUMBER: ISRCTN83240263; NCT03013595 (pre-results). PMID- 29042378 TI - Association between polypharmacy and falls in older adults: a longitudinal study from England. AB - OBJECTIVES: Assess the longitudinal association between polypharmacy and falls and examine the differences in this association by different thresholds for polypharmacy definitions in a nationally representative sample of adults aged over 60 years from England. DESIGN: Longitudinal cohort study. SETTING: The English Longitudinal Study of Ageing waves 6 and 7. PARTICIPANTS: 5213 adults aged 60 or older. MAIN OUTCOME MEASURES: Rates, incidence rate ratio (IRR) and 95% CI for falls in people with and without polypharmacy. RESULTS: A total of 5213 participants contributed 10 502 person-years of follow-up, with a median follow-up of 2.02 years (IQR 1.9-2.1 years). Of the 1611 participants with polypharmacy, 569 reported at least one fall within the past 2 years (rate: 175 per 1000 person-years, 95% CI 161 to 190), and of the 3602 participants without polypharmacy 875 reported at least one fall (rate: 121 per 1000 person-years, 95% CI 113 to 129). The rate of falls was 21% higher in people with polypharmacy compared with people without polypharmacy (adjusted IRR 1.21, 95% CI 1.11 to 1.31). Using >=4 drugs threshold the rate of falls was 18% higher in people with polypharmacy compared with people without (adjusted IRR 1.18, 95% CI 1.08 to 1.28), whereas using >=10 drugs threshold polypharmacy was associated with a 50% higher rate of falls (adjusted IRR 1.50, 95% CI 1.34 to 1.67). CONCLUSIONS: We found almost one-third of the total population using five or more drugs, which was significantly associated with 21% increased rate of falls over a 2-year period. Further exploration of the effects of these complex drug combinations in the real world with a detailed standardised assessment of polypharmacy is greatly required along with pragmatic studies in primary care, which will help inform whether the threshold for a detailed medication review should be lowered. PMID- 29042379 TI - Stigma among Singaporean youth: a cross-sectional study on adolescent attitudes towards serious mental illness and social tolerance in a multiethnic population. AB - OBJECTIVES: Stigma against mental illnesses is one of the significant obstacles faced by mental health service users and providers. It can develop at a young age and is also influenced by culture. Youths in Southeast Asian countries are under represented in mental health research, thus this study aims to explore the dimensions of stigma and social tolerance and examine its correlates in the younger, multiethnic population of Singapore. DESIGN: An online survey collected data with sociodemographic questions, the Attitudes Towards Serious Mental Illness (Adolescent version) Scale, Social Tolerance Scale and an open-text question on words or phrases participants associated with the term 'mental illness'. Principal component analysis and multiple regression models were conducted to investigate the factor structure of the attitudes and social tolerance scales and their sociodemographic correlates. PARTICIPANTS: Participants included 940 youths aged 14-18 years old who were residing in Singapore at the time of the survey and were recruited through local schools. RESULTS: About a quarter of the students (22.6%) reported participating in mental health awareness campaigns while nearly half (44.5%) associated pejorative words and phrases with the term mental illness. The Attitudes Towards Serious Mental Illness (Adolescent version) Scale yielded five factors while the Social Tolerance Scale yielded two. Ethnicity, gender and nationality were significantly correlated with factors of both scales. Chinese youths showed higher sense of 'physical threat' and lower 'social tolerance' than those of other ethnicities. Females showed more 'wishful thinking', 'social concern' and 'social responsibility' towards the mentally ill than males. CONCLUSIONS: The dimensions of stigma and social tolerance are different in Asian cultures compared with Western cultures. Sociodemographic differences in attitudes towards the mentally ill were found among youths living in Singapore. Misconceptions and negative attitudes towards mental illness are common, demonstrating a clear need for effective stigma reduction campaigns. PMID- 29042380 TI - Potentially inappropriate prescribing and its association with health outcomes in middle-aged people: a prospective cohort study in Ireland. AB - OBJECTIVES: To determine the prevalence of potentially inappropriate prescribing (PIP) in a cohort of community-dwelling middle-aged people and assess the relationship between PIP and emergency department (ED) visits, general practitioner (GP) visits and quality of life (QoL). DESIGN: Prospective cohort study. SETTING: The Irish Longitudinal Study on Ageing (TILDA), a nationally representative cohort study of ageing. PARTICIPANTS: Individuals aged 45-64 years recruited to TILDA who were eligible for the means-tested General Medical Services scheme and followed up after 2 years. EXPOSURE: PIP was determined in the 12 months preceding baseline and follow-up TILDA data collection by applying the PRescribing Optimally in Middle-aged People's Treatments (PROMPT) criteria to participants' medication dispensing data. OUTCOME MEASURES: At follow-up, the reported rates of ED and GP visits over 12 months (primary outcome) and the CASP R12 (Control Autonomy Self-realisation Pleasure) measure of QoL (secondary outcome). ANALYSIS: Multivariate negative binomial (rates) and linear regression (CASP-R12) models controlling for potential confounders. RESULTS: At 2-year follow-up (n=808), PIP was detected in 42.9% by the PROMPT criteria. An ED visit was reported by 18.7% and 94.4% visited a GP (median 4 visits, IQR 2-6). Exposure to >=2 PROMPT criteria was associated with higher rates of healthcare utilisation and lower QoL in unadjusted regression. However, in multivariate analysis, the associations between PIP and rates of ED visits (adjusted incidence rate ratio (IRR) 0.92, 95% CI 0.53 to 1.58), and GP visits (IRR 1.06, 95% CI 0.87 to 1.28), and CASP-R12 score (adjusted beta coefficient 0.35, 95% CI -0.93 to 1.64) were not statistically significant. Numbers of medicines and comorbidities were associated with higher healthcare utilisation. CONCLUSIONS: Although PIP was prevalent in this study population, there was no evidence of a relationship with ED and GP visits and QoL. Further research should evaluate whether the PROMPT criteria are related to these and other adverse outcomes in the general middle aged population. PMID- 29042381 TI - Associations between major chain fast-food outlet availability and change in body mass index: a longitudinal observational study of women from Victoria, Australia. AB - OBJECTIVES: The residential neighbourhood fast-food environment has the potential to lead to increased levels of obesity by providing opportunities for residents to consume energy-dense products. This longitudinal study aimed to examine whether change in body mass index (BMI) differed dependent on major chain fast food outlet availability among women residing in disadvantaged neighbourhoods. SETTING: Eighty disadvantaged neighbourhoods in Victoria, Australia. PARTICIPANTS: Sample of 882 women aged 18-46 years at baseline (wave I: 2007/2008) who remained at the same residential location at all three waves (wave II: 2010/2011; wave III: 2012/2013) of the Resilience for Eating and Activity Despite Inequality study. PRIMARY OUTCOME: BMI based on self-reported height and weight at each wave. RESULTS: There was no evidence of an interaction between time and the number of major chain fast-food outlets within 2 (p=0.88), 3 (p=0.66) or 5 km (p=0.24) in the multilevel models of BMI. Furthermore, there was no evidence of an interaction between time and change in availability at any distance and BMI. CONCLUSIONS: Change in BMI was not found to differ by residential major chain fast-food outlet availability among Victorian women residing in disadvantaged neighbourhoods. It may be that exposure to fast-food outlets around other locations regularly visited influence change in BMI. Future research needs to consider what environments are the key sources for accessing and consuming fast food and how these relate to BMI and obesity risk. PMID- 29042382 TI - Drugs and life-threatening ventricular arrhythmia risk: results from the DARE study cohort. AB - OBJECTIVES: To establish a unique sample of proarrhythmia cases, determine the characteristics of cases and estimate the contribution of individual drugs to the incidence of proarrhythmia within these cases. SETTING: Suspected proarrhythmia cases were referred by cardiologists across England between 2003 and 2011. Information on demography, symptoms, prior medical and drug histories and data from hospital notes were collected. PARTICIPANTS: Two expert cardiologists reviewed data for 293 referred cases: 130 were included. Inclusion criteria were new onset or exacerbation of pre-existing ventricular arrhythmias, QTc >500 ms, QTc >450 ms (men) or >470 ms (women) with cardiac syncope, all secondary to drug administration. Exclusion criteria were acute ischaemia and ischaemic polymorphic ventricular tachycardia at presentation, structural heart disease, consent withdrawn or deceased prior to study. Descriptive analysis of Caucasian cases (95% of included cases, n=124) and culpable drug exposures was performed. RESULTS: Of the 124 Caucasian cases, 95 (77%) were QTc interval prolongation related; mean age was 62 years (SD 15), and 63% were female. Cardiovascular comorbidities included hypertension (53%) and patient-reported 'heart rhythm problems' (73%). Family history of sudden death (36%) and hypokalaemia at presentation (27%) were common. 165 culpable drug exposures were reported, including antiarrhythmics (42%), of which amiodarone and flecainide were the most common. Sotalol, a beta-blocking agent with antiarrhythmic activity, was also common (15%). 26% reported multiple drugs, of which 84% reported at least one cytochrome (CYP) P450 inhibitor. Potential pharmacodynamics interactions identified were mainly QT prolongation (59%). CONCLUSIONS: Antiarrhythmics, non cardiac drugs and drug combinations were found to be culpable in a large cohort of 124 clinically validated proarrhythmia cases. Potential clinical factors that may warn the prescriber of potential proarrhythmia include older women, underlying cardiovascular comorbidity, family history of sudden death and hypokalaemia. PMID- 29042384 TI - Impact of internal carotid endarterectomy on visual fields: a non-randomised prospective cohort study in Austria. AB - PURPOSE: The goal of this study was to determine whether internal carotid endarterectomy is associated with visual field changes. METHODS: Between March 2007 and December 2010, a cohort study involved 29 patients with stenosis of the carotid artery. All patients underwent ophthalmoscopy and kinetic visual field examination (Goldmann perimetry) preoperatively and postoperatively. Furthermore, a detailed area calculation was performed. On both the operated and the contralateral side, the areas surrounded by the different isopters (isopter areas) were determined and preoperative and postoperative values compared. The three isopters were classified from the centre to the periphery (I, II and III). Isopter area values are given as ratio compared with total perimetric circle. p Values <0.05 were considered to be statistically significant. RESULTS: 1) The ophthalmologists assessment (paragraph is missing in the proof!)Eight of eleven patients with precarotid endarterectomy impairments experienced focal or concentric improvement. Six cases with preoperative concentric narrowing of the isopters returned to normal or improved substantially. Three out of 18 patients with normal preoperative visual field presented with deteriorations after surgery, two cases with ipsilateral and one with contralateral focal impairment. In 15 cases, there was no preoperative or postoperative abnormality.2) Area calculation (preoperative area, postoperative area, P) (paragraph is missing in the proof)Ipsilateral: isopter area I (0.015, 0.018, 0.131), isopter area II (0.107, 0.120, 0.087), isopter area III (0.392, 0.425, 0.015)Contralateral: isopter area I (0.017, 0.021, 0.222), isopter area II (0.119, 0.125, 0.333), isopter area III (0.416, 0.434, 0.171) CONCLUSIONS: We found a statistically significant extension of the ipsilateral peripheral isopter area (III). Further studies will focus on the question which subgroup is most likely to profit from internal carotid endarterectomy with respect to visual field changes. PMID- 29042383 TI - Health education for patients with acute coronary syndrome and type 2 diabetes mellitus: an umbrella review of systematic reviews and meta-analyses. AB - OBJECTIVES: This umbrella review aimed to identify the current evidence on health education-related interventions for patients with acute coronary syndrome (ACS) or type two diabetes mellitus (T2DM); identify the educational content, delivery methods, intensity, duration and setting required. The purpose was to provide recommendations for educational interventions for high-risk patients with both ACS and T2DM. DESIGN: Umbrella review of systematic reviews and meta-analyses. SETTING: Inpatient and postdischarge settings. PARTICIPANTS: Patients with ACS and T2DM. DATA SOURCES: CINAHL, Cochrane Library, Joanna Briggs Institute, Journals@Ovid, EMBase, Medline, PubMed and Web of Science databases from January 2000 through May 2016. OUTCOMES MEASURES: Clinical outcomes (such as glycated haemoglobin), behavioural outcomes (such as smoking), psychosocial outcomes (such as anxiety) and medical service use. RESULTS: Fifty-one eligible reviews (15 for ACS and 36 for T2DM) consisting of 1324 relevant studies involving 2 88 057 patients (15 papers did not provide the total sample); 30 (58.8%) reviews were rated as high quality. Nurses only and multidisciplinary teams were the most frequent professionals to provide education, and most educational interventions were delivered postdischarge. Face-to-face sessions were the most common delivery formats, and many education sessions were also delivered by telephone or via web contact. The frequency of educational sessions was weekly or monthly, and an average of 3.7 topics was covered per education session. Psychoeducational interventions were generally effective at reducing smoking and admissions for patients with ACS. Culturally appropriate health education, self-management educational interventions, group medical visits and psychoeducational interventions were generally effective for patients with T2DM. CONCLUSIONS: Results indicate that there is a body of current evidence about the efficacy of health education, its content and delivery methods for patients with ACS or T2DM. These results provide recommendations about the content for, and approach to, health education intervention for these high-risk patients. PMID- 29042385 TI - Association between malignancies and Marfan syndrome: a population-based, nested case-control study in Taiwan. AB - OBJECTIVE: Marfan syndrome (MFS) involves a deficiency of the structural extracellular matrix component fibrillin-1 and overactivation of the transforming growth factor-beta (TGF-beta) signalling pathway. The TGF-beta signalling pathway also actively participates in malignant transformation. Although anecdotal case reports have suggested associations between MFS/MFS-like conditions and several haematological and solid malignancies, such associations have not been thoroughly evaluated in large-scale studies. We sought to use a nationwide healthcare insurance claim database to evaluate whether patients with MFS are at increased risk of malignancy. PATIENTS AND METHODS: We conducted a nested case-control analysis using a database extracted from Taiwan's National Health Insurance Research Database. All medical conditions for each case and control were categorised using the International Classification of Diseases, 9th Revision classifications. ORs and 95% CIs for associations between MFS and malignancies were estimated using conditional logistic regression and adjusted for comorbidities. RESULTS: Our analyses included 1 153 137 cancer cases and 1 153 137 propensity score-matched controls. Relative to other subjects, patients with MFS had a significantly higher risk of having a malignancy (adjusted OR 3.991) and hypertension (adjusted OR 1.964) and were significantly more likely to be men. Malignancies originating from the head and neck and the urinary tract were significantly more frequent among patients with MFS than among subjects without MFS. CONCLUSION: Patients with MFS are at increased risk of developing various malignancies. Healthcare professionals should be aware of this risk when treating such patients, and increased cancer surveillance may be necessary for these patients. PMID- 29042387 TI - Nature-based care opportunities and barriers in oncology contexts: a modified international e-Delphi survey. AB - OBJECTIVE: To develop recommendations regarding opportunities and barriers for nature-based care in oncology contexts using a structured knowledge generation process involving relevant healthcare and design experts. DESIGN: Four-round modified electronic Delphi study. Oncology patients' nature-based recommendations, uncovered in preceding qualitative investigation, were included in the first round for the expert participants' consideration. Key items (opportunities and barriers) were developed using data aggregation and synthesis, followed by item prioritisation and 10-point Likert scale ranking (1=not important, 10=very important). Descriptive statistics were calculated to assess items of highest importance representing expert recommendations. CONTEXT: Online Delphi process constituting an electronic international survey. PARTICIPANTS: A purposive sample of 200 potential panellists (recruitment target n=40) comprising healthcare practitioners, managers, designers, architects and researchers were invited to participate; experts were identified via research networks, snowballing and systematic literature review. RESULTS: 38 experts across seven countries (Australia, USA, UK, New Zealand, Canada, Denmark and Sweden) returned questionnaire 1, which determined consent and acceptance for participation. Initial response rate was 19%, and subsequent response rates were 84%, 82% and 84% for rounds 2, 3 and 4, respectively. The Delphi panel developed recommendations consisting of 10 opportunities and 10 barriers. The following opportunities were rated to be of highest importance: window views from clinical areas onto nature; outdoor settings, gardens and courtyards with easy and effortless access; and nature-based physical exercise adapted to patient requirements. Highest-rated barriers for nature-based oncology care included lack of knowledge and awareness about benefits of nature engagement and inaccessibility, not considering access requirements for the very sick and frail. CONCLUSIONS: Experts suggested and agreed on a set of recommendations, which represent critical considerations for the safe adoption of nature-based oncology opportunities. These findings fill a gap in understanding about helpful nature based oncology care and may translate into oncology design and innovation. PMID- 29042386 TI - Effectiveness of an electronic patient-centred self-management tool for gout sufferers: a cluster randomised controlled trial protocol. AB - INTRODUCTION: Gout is increasing despite effective therapies to lower serum urate concentrations to 0.36 mmol/L or less, which, if sustained, significantly reduces acute attacks of gout. Adherence to urate-lowering therapy (ULT) is poor, with rates of less than 50% 1 year after initiation of ULT. Attempts to increase adherence in gout patients have been disappointing. We aim to evaluate the effectiveness of use of a personal, self-management, 'smartphone' application (app) to achieve target serum urate concentrations in people with gout. We hypothesise that personalised feedback of serum urate concentrations will improve adherence to ULT. METHODS AND ANALYSIS: Setting and designPrimary care. A prospective, cluster randomised (by general practitioner (GP) practices), controlled trial. PARTICIPANTS: GP practices will be randomised to either intervention or control clusters with their patients allocated to the same cluster. INTERVENTION: The intervention group will have access to the Healthy.me app tailored for the self-management of gout. The control group patients will have access to the same app modified to remove all functions except the Gout Attack Diary. PRIMARY AND SECONDARY OUTCOMES: The proportion of patients whose serum urate concentrations are less than or equal to 0.36 mmol/L after 6 months. Secondary outcomes will be proportions of patients achieving target urate concentrations at 12 months, ULT adherence rates, serum urate concentrations at 6 and 12 months, rates of attacks of gout, quality of life estimations and process and economic evaluations. The study is designed to detect a >=30% improvement in the intervention group above the expected 50% achievement of target serum urate at 6 months in the control group: power 0.80, significance level 0.05, assumed 'dropout' rate 20%. ETHICS AND DISSEMINATION: This study has been approved by the University of New South Wales Human Research Ethics Committee. Study findings will be disseminated in international conferences and peer-reviewed journal. TRIAL REGISTRATION NUMBER: ACTRN12616000455460. PMID- 29042388 TI - Is overseas volunteering beneficial to the NHS? The analysis of volunteers' responses to a feedback questionnaire following experiences in low-income and middle-income countries. AB - INTRODUCTION: Locally requested and planned overseas volunteering in low-income and middle-income countries by National Health Service (NHS) staff can have benefits for the host or receiving nation, but its impact on the professional development of NHS staff is not proven. The Knowledge and Skills Framework (KSF) and Leadership Framework (LF) are two tools used by employers as a measure of individuals' development. We have used dimensions from both tools as a method of evaluating the benefit to NHS doctors who volunteer overseas. METHODS: 88 NHS volunteers participating with local colleagues in Primary Trauma Care and orthopaedic surgical training courses in sub-Saharan Africa were asked to complete an online self-assessment questionnaire 6 months following their return to the UK. The survey consisted of questions based on qualities outlined in both the KSF and LF. RESULTS: 85 completed responses to the questionnaire were received. In every KSF domain assessed, the majority of volunteers agreed that their overseas volunteering experience improved their practice within the NHS. Self-assessed pre-course and post-course scores evaluating the LF also saw a universal increase, notably in the 'working with others' domain. DISCUSSION: There is a growing body of literature outlining the positive impact of overseas volunteering on NHS staff. Despite increasing evidence that such experiences can develop volunteers' essential skills, individuals often find it difficult to gain support of their employers. Our study, in line with the current literature, shows that overseas volunteering by NHS staff can provide an opportunity to enhance professional and personal development. Skills gained from volunteering within international links match many of the qualities outlined in both KSF and LF, directly contributing to volunteers' continued professional development. PMID- 29042389 TI - What's up doc? A national cross-sectional study of psychological wellbeing of hospital doctors in Ireland. AB - OBJECTIVES: To measure levels of psychological distress, psychological wellbeing and self-stigma in hospital doctors in Ireland. DESIGN: National cross-sectional study of randomised sample of hospital doctors. Participants provided sociodemographic data (age, sex, marital status), work grade (consultant, higher/basic specialist trainee), specialty and work hours and completed well being questionnaires (the Depression Anxiety Stress Scale, WHO Well-being Index, General Health Questionnaire) and single-item scales on self-rated health and self-stigma. SETTING: Irish publicly funded hospitals and residential institutions. PARTICIPANTS: 1749 doctors (response rate of 55%). All hospital specialties were represented except radiology. RESULTS: Half of participants were men (50.5%). Mean hours worked per week were 57 hours. Over half (52%) rated their health as very good/excellent, while 50.5% reported positive subjective well-being (WHO-5). Over a third (35%) experienced psychological distress (General Health Questionnaire 12). Severe/extremely severe symptoms of depression, anxiety and stress were evident in 7.2%, 6.1% and 9.5% of participants (Depression, Anxiety, Stress Scale 21). Symptoms of distress, depression, anxiety and stress were significantly higher and levels of well-being were significantly lower in trainees compared with consultants, and this was not accounted for by differences in sociodemographic variables. Self-stigma was present in 68.4%. CONCLUSIONS: The work hours of doctors working in Irish hospitals were in excess of European Working Time Directive's requirements. Just over half of hospital doctors in Ireland had positive well-being. Compared with international evidence, they had higher levels of psychological distress but slightly lower symptoms of depression and anxiety. Two-thirds of respondents reported self-stigma, which is likely to be a barrier to accessing care. These findings have implications for the design of support services for doctors, for discussions on quality of patient care and for future research. PMID- 29042390 TI - Effect of point-of-care susceptibility testing in general practice on appropriate prescription of antibiotics for patients with uncomplicated urinary tract infection: a diagnostic randomised controlled trial. AB - OBJECTIVES: To investigate the effect of adding point-of-care (POC) susceptibility testing to POC culture on appropriate use of antibiotics as well as clinical and microbiological cure for patients with suspected uncomplicated urinary tract infection (UTI) in general practice. DESIGN: Open, individually randomised controlled trial. SETTING: General practice. PARTICIPANTS: Women with suspected uncomplicated UTI, including elderly patients above 65, patients with recurrent UTI and patients with diabetes. The sample size calculation predicted 600 patients were needed. INTERVENTIONS: Flexicult SSI-Urinary Kit was used for POC culture and susceptibility testing and ID Flexicult was used for POC culture only. MAIN OUTCOME MEASURES: Primary outcome: appropriate antibiotic prescribing on the day after consultation defined as either (1) patient with UTI: to prescribe a first-line antibiotic to which the infecting pathogen was susceptible or a second line if a first line could not be used or (2) patient without UTI: not to prescribe an antibiotic. UTI was defined by typical symptoms and significant growth in a reference urine culture performed at one of two external laboratories. SECONDARY OUTCOMES: clinical cure on day five according to a 7-day symptom diary and microbiological cure on day 14. Logistic regression models taking into account clustering within practices were used for analysis. RESULTS: 20 general practices recruited 191 patients for culture and susceptibility testing and 172 for culture only. 63% of the patients had UTI and 12% of these were resistant to the most commonly used antibiotic, pivmecillinam. Patients randomised to culture only received significantly more appropriate treatment (OR: 1.44 (95% CI 1.03 to 1.99), p=0.03). There was no significant difference in clinical or microbiological cure. CONCLUSIONS: Adding POC susceptibility testing to POC culture did not improve antibiotic prescribing for patients with suspected uncomplicated UTI in general practice. Susceptibility testing should be reserved for patients at high risk of resistance and complications. TRIAL REGISTRATION NUMBER: NCT02323087; Results. PMID- 29042391 TI - Korean OBEsity Surgical Treatment Study (KOBESS): protocol of a prospective multicentre cohort study on obese patients undergoing laparoscopic sleeve gastrectomy and Roux-en-Y gastric bypass. AB - INTRODUCTION: Bariatric surgery effectively induces long-term weight loss in Western populations. However, its effectiveness in Asians remains to be confirmed objectively. The Korean Society for Metabolic and Bariatric Surgery proposes the first prospective cohort study on Koreans undergoing bariatric surgery. METHODS AND ANALYSIS: The Korean OBEsity Surgical treatment Study (KOBESS) is a prospective, multicentre, single-arm, observational, cohort study on morbidly obese patients who undergo primary sleeve gastrectomy or Roux-en-Y gastric bypass in Korea. In total, 100 consecutive obese Asian patients who will undergo bariatric surgery will be recruited in 2016-2017; follow-up will be for 1 year. Primary outcomes are change in body weight and waist circumference at 1 year. All patients will undergo anthropometry, laboratory tests, bioelectrical impedance analysis, gastrofibroscopy, polysomnography and fat-measuring CT before and after surgery. Patients with diabetes will also undergo perioperative oral glucose tolerance and endocrinological hormone tests. Hypertensive patients will also undergo perioperative echocardiography and carotid Doppler ultrasonography. Female patients suspected of having polycystic ovarian syndrome will also undergo perioperative hormone tests and abdominal ultrasonography. Visceral and subcutaneous fat will be harvested during surgery. Blood, stool and urine samples will be taken at various perioperative time points. Although the cohort is small and the follow-up duration is relatively short, this study will determine whether bariatric surgery induces satisfactory weight loss in obese Koreans. Significantly, the tissue samples will also facilitate many studies examining the effects of bariatric surgery and their mechanisms. ETHICS AND DISSEMINATION: Ethics approval was obtained from the institutional review board of each participating hospital. All findings arising from this cohort study will be published in open-access peer-reviewed journals and will be presented at national and international meetings. All KOBESS investigators will be able to propose research studies and potential publications based on KOBESS data and tissue samples. TRIAL REGISTRATION NUMBER: NCT03100292; Pre-results. PMID- 29042393 TI - Effects of polyethylene glycol 2 L alone or with ascorbic acid compared with polyethylene glycol 4 L alone for bowel preparation before colonoscopy: protocol for a systematic review and network meta-analysis. AB - INTRODUCTION: Colonoscopy has been regarded as a standard method of detecting and removing gastrointestinal lesions early, while adequate bowel preparation is the prerequisite of determining the diagnostic accuracy and treatment safety of this process. Polyethylene glycol (PEG) based bowel preparation regimens remain the first recommendation, but the optimal option is still uncertain. The aim of this systematic review and network meta-analysis of randomised controlled trials (RCTs) is to determine the optimal PEG based bowel preparation regimen before colonoscopy. METHODS AND ANALYSIS: We will assign two investigators to independently search all potential citations, screen records, abstract essential information and appraise the risk of bias accordingly. Then, random effects pairwise and network meta-analyses of RCTs comparing PEG 2 L alone or with ascorbic acid with PEG 4 L alone will be performed using RevMan 5.3 (Copenhagen, Denmark: The Nordic Cochrane Centre, The Cochrane Collaboration, 2013), Stata 14 (StataCorp, Texas, USA) and WinBUGS 1.4 (Imperial College School of Medicine, St Mary's, London, UK) from January 2000 to April 2017. The surface under the cumulative ranking curve will also be calculated in order to rank the regimens. ETHICS AND DISSEMINATION: Ethics approval and patient written informed consent will not be required because all of the analyses in the present study will be performed based on data from published studies. We will submit our systematic review and network meta-analysis to a peer reviewed scientific journal for publication. SYSTEMATIC REVIEW REGISTRATION: PROSPERO: CRD42017068957. PMID- 29042392 TI - Renal and Cardiovascular Effects of sodium-glucose cotransporter 2 (SGLT2) inhibition in combination with loop Diuretics in diabetic patients with Chronic Heart Failure (RECEDE-CHF): protocol for a randomised controlled double-blind cross-over trial. AB - INTRODUCTION: Type 2 diabetes (T2D) and heart failure (HF) are a frequent combination, where treatment options remain limited. There has been increasing interest around the sodium-glucose cotransporter 2 (SGLT2) inhibitors and their use in patients with HF. Data on the effect of SGLT2 inhibitor use with diuretics are limited. We hypothesise that SGLT2 inhibition may augment the effects of loop diuretics and the benefits of SGLT2 inhibitors may extend beyond those of their metabolic (glycaemic parameters and weight loss) and haemodynamic parameters. The effects of SGLT2 inhibitors as an osmotic diuretic and on natriuresis may underlie the cardiovascular and renal benefits demonstrated in the recent EMPA REG study. METHODS AND ANALYSIS: To assess the effect of SGLT2 inhibitors when used in combination with a loop diuretic, the RECEDE-CHF (Renal and Cardiovascular Effects of SGLT2 inhibition in combination with loop Diuretics in diabetic patients with Chronic Heart Failure) trial is a single-centre, randomised, double-blind, placebo-controlled, cross-over trial conducted in a secondary care setting within NHS Tayside, Scotland. 34 eligible participants, aged between 18 and 80 years, with stable T2D and CHF will be recruited. Renal physiological testing will be performed at two points (week 1 and week 6) on each arm to assess the effect of 25 mg empagliflozin, on the primary and secondary outcomes. Participants will be enrolled in the trial for a total period between 14 and 16 weeks. The primary outcome will assess the effect of empagliflozin versus placebo on urine output. The secondary outcomes are to assess the effect of empagliflozin on glomerular filtration rate, cystatin C, urinary sodium excretion, urinary protein/creatinine ratio and urinary albumin/creatinine ratio when compared with placebo. ETHICS AND DISSEMINATION: Ethics approval was obtained by the East of Scotland Research Ethics Service. Results of the trial will be submitted for publication in a peer-reviewed journal. TRIAL REGISTRATION NUMBER: NCT03226457; Pre-results. PMID- 29042394 TI - Effects of e-learning in a continuing education context on nursing care: a review of systematic qualitative, quantitative and mixed studies reviews (protocol). AB - INTRODUCTION: Continuing education (CE) is imperative to the future of professional nursing. The use of e-learning by registered nurses for CE is spreading. A review of systematic reviews will be conducted to develop a broad picture of the effects of e-learning in a CE context on nursing care. METHODS AND ANALYSIS: Systematic qualitative, quantitative and mixed studies reviews published in English, French or Spanish from 1 January 2006 will be included. The outcomes of interest will be extracted and analysed inductively and deductively from the Nursing Care Performance Framework; some themes include nursing resources, nurses' practice environment, processes, professional satisfaction, and nursing sensitive outcomes. Three reviewers will independently screen first the title and abstract of the papers, and then the full texts in order to assess eligibility. Two teams of two reviewers will extract the selected reviews' characteristics and data. The results from various types of reviews will be integrated using a data-based convergent synthesis design. We will conduct a thematic synthesis and transform all quantitative and mixed data into qualitative data. ETHICS AND DISSEMINATION: Ethics approval is not required for review of systematic reviews. We will summarise evidence concerning the negative, neutral and positive effects of various forms of e-learning on different aspects of nursing care. If we find gaps in the literature, we will highlight them and suggest ideas for further research. We will also focus on positive effects and present, if possible, the components and characteristics of e-learning interventions that were found to be successful. We will present this protocol and results in international conferences in nursing, medical, and health informatics domains. We will also submit the results of our work for peer-review publication in a journal indexed in the international bibliographic database of biomedical information. PMID- 29042395 TI - Nuclear receptor profiling in prostatospheroids and castration-resistant prostate cancer. AB - Nuclear receptors (NRs), which belong to a superfamily of transcription factors and consist of a total of 48 members in humans, govern the expression of genes involved in a board range of developmental, reproductive, metabolic and immunological programs. Given the significant importance of androgen receptor and a few known NRs in the progression of prostate cancer, we surveyed the expression profiles of the entire NR superfamily in three-dimensional cultured prostatospheroids derived from different prostate cancer cell lines and a tumor xenograft model of castration-resistant prostate cancer VCaP-CRPC by quantitative real-time RT-PCR. Our results revealed that prostatospheroids and castration relapse VCaP-CRPC xenografts, both contained enriched populations of prostate cancer stem/progenitor-like cells (PCSCs), displayed distinct expression patterns of NRs. Intriguingly, most of these differentially expressed NRs were orphan NRs and showed upregulation. Pairwise analysis identified five orphan NRs (including RORbeta, TLX, COUP-TFII, NURR1 and LRH-1) that showed common upregulation in both mRNA and protein levels in the prostatospheroids and castration-relapse VCaP-CRPC xenografts, and overexpression of these orphan NRs could increase cancer stem cell marker expressions and enhance spheroid formation capacity in prostate cancer cells, suggesting that these orphan NRs might perform positive roles in the growth regulation of PCSCs and castration-resistant prostate cancer. Together, our NR expression dataset not only revealed the distinct physiologic status and regulatory roles governed by the networks of specific NRs but also some of these identified orphan NRs could be the potential therapeutic targets for PCSCs or castration-resistant prostate cancer. PMID- 29042396 TI - Differentiated thyroid cancer: millions spent with no tangible gain? AB - The incidence of differentiated thyroid cancer (DTC) has rapidly increased worldwide over the last decades. It is unknown if the increase in diagnosis has been mirrored by an increase in thyroidectomy rates with the concomitant economic impact that this would have on the health care system. DTC and thyroidectomy incidence as well as DTC-specific mortality were modeled using Poisson regression in New South Wales (NSW), Australia per year and by sex. The incidence of 2002 was the point from which the increase in rates was assessed cumulatively over the subsequent decade. The economic burden of potentially avoidable thyroidectomies due to the increase in diagnosis was estimated as the product of the additional thyroidectomy procedures during a decade attributable to rates beyond those reported for 2002 and the national average hospital cost of an uncomplicated thyroidectomy in Australia. The following results were obtained. The incidence of both DTC and thyroidectomy doubled in NSW between 2003 and 2012, while the DTC specific mortality rate remained unchanged over the same period. Based on the 2002 incidence, the projected increase over 10 years (2003-2012) in thyroidectomy procedures was 2196. This translates to an extra cost burden of over AUD$ 18,600,000 in surgery-related health care expenditure over one decade in NSW. Our findings suggest that, if this rise is solely attributable to overdetection, then the rising expenditure serves no additional purpose. Reducing unnecessary detection and a conservative approach to managing DTC are sensible and would lead to millions of dollars in savings and reduced harms to patients. PMID- 29042397 TI - Influence of Contrast Media Dose and Osmolality on the Diagnostic Performance of Contrast Fractional Flow Reserve. AB - BACKGROUND: Contrast fractional flow reserve (cFFR) is a method for assessing functional significance of coronary stenoses, which is more accurate than resting indices and does not require adenosine. However, contrast media volume and osmolality may affect the degree of hyperemia and therefore diagnostic performance. METHODS AND RESULTS: cFFR, instantaneous wave-free ratio, distal pressure/aortic pressure at rest, and FFR were measured in 763 patients from 12 centers. We compared the diagnostic performance of cFFR between patients receiving low or iso-osmolality contrast (n=574 versus 189) and low or high contrast volume (n=341 versus 422) using FFR<=0.80 as a reference standard. The sensitivity, specificity, and overall accuracy of cFFR for the low versus iso osmolality groups were 73%, 93%, and 85% versus 87%, 90%, and 89%, and for the low versus high contrast volume groups were 69%, 99%, and 83% versus 82%, 93%, and 88%. By receiver operating characteristics (ROC) analysis, cFFR provided better diagnostic performance than resting indices regardless of contrast osmolality and volume (P<0.001 for all groups). There was no significant difference between the area under the curve of cFFR in the low- and iso osmolality groups (0.938 versus 0.957; P=0.40) and in the low- and high-volume groups (0.939 versus 0.949; P=0.61). Multivariable logistic regression analysis showed that neither contrast osmolality nor volume affected the overall accuracy of cFFR; however, both affected the sensitivity and specificity. CONCLUSIONS: The overall accuracy of cFFR is greater than instantaneous wave-free ratio and distal pressure/aortic pressure and not significantly affected by contrast volume and osmolality. However, contrast volume and osmolality do affect the sensitivity and specificity of cFFR. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT02184117. PMID- 29042399 TI - Restenosis in a Collapsed Magnesium Bioresorbable Scaffold. PMID- 29042398 TI - Peripheral Artery Disease and Transcatheter Aortic Valve Replacement Outcomes: A Report From the Society of Thoracic Surgeons/American College of Cardiology Transcatheter Therapy Registry. AB - BACKGROUND: Peripheral artery disease (PAD) is associated with increased cardiovascular mortality, and PAD risk factors overlap with those for aortic stenosis. The prevalence and outcomes associated with PAD in a population undergoing transcatheter aortic valve replacement (TAVR) are unknown. METHODS AND RESULTS: Using the Society of Thoracic Surgeons/Transcatheter Valve Therapy Registry linked to Medicare claims data, we identified patients >=65 years old undergoing TAVR from 2011 to 2015. We calculated hazard ratios for 1-year adverse outcomes, including mortality, readmission, and bleeding, for patients with PAD compared with those without, adjusting for baseline characteristics and postprocedure medications. Analyses were performed separately by access site (transfemoral and nontransfemoral). Of 19 660 patients undergoing transfemoral TAVR, 4810 (24.5%) had PAD; 3730 (47.9%) of 7780 patients undergoing nontransfemoral TAVR had PAD. In both groups, patients with PAD were significantly more likely to have coronary and carotid artery diseases. At 1-year follow-up, patients with PAD undergoing TAVR via transfemoral access had a higher incidence of death (16.8% versus 14.4%; adjusted hazard ratio, 1.14; P=0.01), readmission (45.5% versus 42.1%; hazard ratio, 1.11; P<0.001), and bleeding (23.1% versus 19.7%; hazard ratio, 1.18; P<0.001) compared with patients without PAD. Patients with PAD undergoing TAVR via nontransfemoral access did not have significantly higher rates of 1-year mortality or readmission compared with patients without PAD. CONCLUSIONS: PAD is common among patients undergoing commercial TAVR via transfemoral and nontransfemoral access. Among patients undergoing transfemoral TAVR, PAD is associated with a higher incidence of 1-year adverse outcomes compared with absence of PAD. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT01737528. PMID- 29042400 TI - Thrombus Aspiration for ST-Segment-Elevation Myocardial Infarction in Modern Era: Still an Issue of Debate? AB - The role of manual thrombus aspiration (TA) during primary percutaneous coronary intervention (PPCI) for acute ST-segment-elevation myocardial infarction has been a matter of intense research and debate now. Although recent randomized controlled clinical trials (notably TASTE [Thrombus Aspiration in ST-Elevation Myocardial Infarction in Scandinavia] and TOTAL [Trial of Routine Aspiration Thrombectomy With PCI Versus PCI Alone in Patients With STEMI]) do not supply evidence supporting the routine use of TA in patients with ST-segment-elevation myocardial infarction, manual TA remains a therapeutic option for interventional cardiologists when treating patients with substantial thrombus burden during PPCI. It remains unknown whether patients might actually benefit from TA applied in a more selective manner depending on the thrombus burden during PPCI, instead of routine application. In this review, we summarize current knowledge on the instruments used in the TA procedure, positive as well as negative clinical effects of TA during PPCI, and analyze the potential reasons for observed effects, in an effort to help the clinical decision making by physicians for the use of TA in individual ST-segment-elevation myocardial infarction patients during PPCI. PMID- 29042401 TI - Pulmonary Artery Denervation by Determining Targeted Ablation Sites for Treatment of Pulmonary Arterial Hypertension. PMID- 29042402 TI - Ginsenoside Rg3 ameliorated HFD-induced hepatic steatosis through downregulation of STAT5-PPARgamma. AB - Healthy expansion of adipose tissue maintains metabolic homeostasis by storing excess chemical energy in increased fat mass. The STAT5-PPAR gamma pathway reportedly regulates adipocyte differentiation, lipid metabolism and adipogenesis. Ginsenoside Rg3 is one of the diverse groups of steroidal saponins, the major active components of ginseng, which have demonstrated pharmacological properties. In this study, we evaluated the therapeutic effects of ginsenoside Rg3 under pathological conditions in vitro and in vivo We examined the effects of ginsenoside Rg3 on glucose level, insulin sensitivity and lipogenesis in high-fat diet-fed C57BL/6 mice. Ginsenoside Rg3 was also applied to the pre-adipocyte cell line 3T3-L1 to assess the impact on lipogenesis. Ginsenoside Rg3 reduced epididymal white adipose tissue (eWAT) size and hepatic steatosis, and the amount of triglycerides (TGs) in both eWAT and liver. Similar to the murine model, Rg3 treated 3T3-L1 cells showed a reduction in lipid accumulation and amount of total TGs. Ginsenoside Rg3 regulates the expression of PPAR gamma though STAT5 in vitro and in vivo According to our results, lipid metabolism-related genes were downregulated in the high-fat mice and 3T3-L1 cell line. Rg3 shows potential for the amelioration of obesity-induced pathology, acting though STAT5-PPAR gamma to facilitate the healthy functioning of adipose tissue. This is the first report of evidence that obesity-induced insulin resistance and lipotoxicity can be treated with ginsenoside Rg3, which acts though the STAT5-PPAR gamma pathway in vivo and in vitro. PMID- 29042404 TI - Antagonistic Transcription Factor Complexes Modulate the Floral Transition in Rice. AB - Plants measure day or night lengths to coordinate specific developmental changes with a favorable season. In rice (Oryza sativa), the reproductive phase is initiated by exposure to short days when expression of HEADING DATE 3a (Hd3a) and RICE FLOWERING LOCUS T 1 (RFT1) is induced in leaves. The cognate proteins are components of the florigenic signal and move systemically through the phloem to reach the shoot apical meristem (SAM). In the SAM, they form a transcriptional activation complex with the bZIP transcription factor OsFD1 to start panicle development. Here, we show that Hd3a and RFT1 can form transcriptional activation or repression complexes also in leaves and feed back to regulate their own transcription. Activation complexes depend on OsFD1 to promote flowering. However, additional bZIPs, including Hd3a BINDING REPRESSOR FACTOR1 (HBF1) and HBF2, form repressor complexes that reduce Hd3a and RFT1 expression to delay flowering. We propose that Hd3a and RFT1 are also active locally in leaves to fine-tune photoperiodic flowering responses. PMID- 29042403 TI - Plastic Transcriptomes Stabilize Immunity to Pathogen Diversity: The Jasmonic Acid and Salicylic Acid Networks within the Arabidopsis/Botrytis Pathosystem. AB - To respond to pathogen attack, selection and associated evolution has led to the creation of plant immune system that are a highly effective and inducible defense system. Central to this system are the plant defense hormones jasmonic acid (JA) and salicylic acid (SA) and crosstalk between the two, which may play an important role in defense responses to specific pathogens or even genotypes. Here, we used the Arabidopsis thaliana-Botrytis cinerea pathosystem to test how the host's defense system functions against genetic variation in a pathogen. We measured defense-related phenotypes and transcriptomic responses in Arabidopsis wild-type Col-0 and JA- and SA-signaling mutants, coi1-1 and npr1-1, individually challenged with 96 diverse B. cinerea isolates. Those data showed genetic variation in the pathogen influences on all components within the plant defense system at the transcriptional level. We identified four gene coexpression networks and two vectors of defense variation triggered by genetic variation in B. cinerea This showed that the JA and SA signaling pathways functioned to constrain/canalize the range of virulence in the pathogen population, but the underlying transcriptomic response was highly plastic. These data showed that plants utilize major defense hormone pathways to buffer disease resistance, but not the metabolic or transcriptional responses to genetic variation within a pathogen. PMID- 29042405 TI - Sterol methyltransferase a target for anti-amoeba therapy: towards transition state analog and suicide substrate drug design. AB - Ergosterol biosynthesis pathways essential to pathogenic protozoa growth and absent from the human host offer new chokepoint targets. Here, we present characterization and cell-based interference of Acanthamoeba spp sterol 24-/28 methylases (SMTs) that catalyze the committed step in C28- and C29-sterol synthesis. Intriguingly, our kinetic analyses suggest that 24-SMT prefers plant cycloartenol whereas 28-SMT prefers 24(28)-methylene lophenol in similar fashion to the substrate preferences of land plant SMT1 and SMT2. Transition state analog 24(R,S),25-epiminolanosterol (EL) and suicide substrate 26,27-dehydrolanosterol (DHL) differentially inhibited trophozoite growth with IC50 values of 7 nM and 6 uM, respectively, and EL yielded 20-fold higher activity than reference drug voriconazole. Against either SMT assayed with native substrate, EL exhibited tight binding ~Ki 9 nM. Alternatively, DHL is methylated at C26 by 24-SMT that thereby, generates intermediates that complex and inactivate the enzyme, whereas DHL is not productively bound to 28-SMT. Steroidal inhibitors had no effect on human epithelial kidney cell growth or cholesterol biosynthesis at minimum amoebicidal concentrations. We hypothesize the selective inhibition of Acanthamoeba by steroidal inhibitors representing distinct chemotypes may be an efficient strategy for the development of promising compounds to combat amoeba diseases. PMID- 29042406 TI - What data sources do ophthalmologists trust? AB - To survey ophthalmologists regarding sources they trust when incorporating new medical knowledge into their practice. The survey was distributed primarily to US based ophthalmologists. Questions were derived based on the lead author's research experience from congresses and discussions and from mentions in the medical literature. In total, 77 physicians completed the survey of 1886 sent (4% response rate). Regarding study design, physicians preferred a well-controlled, randomised, double-masked trial (99%) with multicentred investigational site across a wide geographical area (80%). Authorship of a research article was most desired from a well-known key opinion leader (KOL) (75%) or any KOL leader at a university (75%). The most selected journal type was a subspecialty publication (86%) and second a multispecialty high impact journal (77%). Study sponsorship was most desired from the NIH or other government agencies (71%) or a university (71%). Doctors preferred clinical opinions from an ophthalmic medical society (75%). For the source of new clinical data, physicians indicated an unsponsored peer-reviewed journal article (77%) or a lecture at a large ophthalmic congress (74%) as the preferred source. Ophthalmologists generally desire sponsors, study designs and opinions that appear free of bias on which to base their clinical practice decisions. PMID- 29042407 TI - Can favourable psychosocial working conditions in midlife moderate the risk of work exit for chronically ill workers? A 20-year follow-up of the Whitehall II study. AB - OBJECTIVES: To investigate if favourable psychosocial working conditions can reduce the risk of work exit and specifically for workers with chronic disease. METHODS: Men and women (32%) aged 35-55, working and having no chronic disease at baseline of the Whitehall II study of London-based civil servants were selected (n=9040). We observed participants' exit from work through retirement, health related exit and unemployment, new diagnosis of chronic disease (ie, coronary heart disease, diabetes, stroke and cancer) and their psychosocial working conditions in midlife. Using cause-specific Cox models, we examined the association of chronic disease and favourable psychosocial working conditions and their interaction, with the three types of work exit. We adjusted for gender, occupational grade, educational level, remaining in civil service, spouse's employment status and mental health. RESULTS: Chronic disease significantly increased the risk of any type of work exit (HR 1.27) and specifically the risk of health-related exit (HR 2.42). High skill discretion in midlife reduced the risk of any type of work exit (HR 0.90), retirement (HR 0.91) and health-related exit (HR 0.68). High work social support in midlife decreased the risk of health related exit (HR 0.79) and unemployment (HR 0.71). Favourable psychosocial working conditions in midlife did not attenuate the association between chronic disease and work exit significantly. CONCLUSIONS: The chronically ill have increased risks of work exit, especially through health-related exit routes. Chronic disease is an obstacle to extended working lives. Favourable working conditions directly relate to reduced risks of work exit. PMID- 29042408 TI - Impact of restricting diagnostic imaging reimbursement for uncomplicated low back pain in Ontario: a population-based interrupted time series analysis. AB - BACKGROUND: In 2012, the Ontario government withdrew public insurance coverage of imaging tests for uncomplicated low back pain. We studied the impact of this restriction on test ordering by physicians. METHODS: We compared the numbers of lumbar spine radiography, computed tomography (CT) and single-segment magnetic resonance imaging (MRI) studies ordered by physicians in the 3 years before and after the policy change. We linked claims data from the Ontario Health Insurance Program with physician details to calculate rates per test-ordering physician. We compared changes in rates of monthly test ordering by family physicians and specialists before and after the policy change using segmented regression analysis of interrupted time series data. RESULTS: The number of lumbar spine radiography and spine CT studies ordered by family physicians decreased by 98 597 (28.7%) and 17 499 (28.7%), respectively, in the year after the policy change; there was little change in ordering by specialists. The number of lumbar spine radiography studies ordered per family physician by month decreased by 0.81 tests (p < 0.001) after the intervention, followed by a smaller rebound increase that remained below baseline. Monthly ordering of spine CT per family physician declined by 0.1 tests (p < 0.001), and that of limited spine MRI rose before the intervention, decreased by 0.18 tests (p < 0.001) after the intervention, then started to rise again. Monthly ordering of limited spine MRI by specialists, which had been stable before the policy change, decreased by 0.1 tests per specialist (p < 0.001) afterward, then rose to preintervention levels. INTERPRETATION: The restriction in coverage of imaging tests caused a larger decrease in test ordering by family physicians than by specialists and a larger, more sustained reduction in the use of lumbar spine radiography and spine CT than of spine MRI. PMID- 29042409 TI - RECQ-like helicases Sgs1 and BLM regulate R-loop-associated genome instability. AB - Sgs1, the orthologue of human Bloom's syndrome helicase BLM, is a yeast DNA helicase functioning in DNA replication and repair. We show that SGS1 loss increases R-loop accumulation and sensitizes cells to transcription-replication collisions. Yeast lacking SGS1 accumulate R-loops and gamma-H2A at sites of Sgs1 binding, replication pausing regions, and long genes. The mutation signature of sgs1Delta reveals copy number changes flanked by repetitive regions with high R loop-forming potential. Analysis of BLM in Bloom's syndrome fibroblasts or by depletion of BLM from human cancer cells confirms a role for Sgs1/BLM in suppressing R-loop-associated genome instability across species. In support of a potential direct effect, BLM is found physically proximal to DNA:RNA hybrids in human cells, and can efficiently unwind R-loops in vitro. Together, our data describe a conserved role for Sgs1/BLM in R-loop suppression and support an increasingly broad view of DNA repair and replication fork stabilizing proteins as modulators of R-loop-mediated genome instability. PMID- 29042412 TI - The Use of Language in Diabetes Care and Education. AB - Language is powerful and can have a strong impact on perceptions as well as behavior. A task force, consisting of representatives from the American Association of Diabetes Educators (AADE) and the American Diabetes Association (ADA), convened to discuss language in diabetes care and education. This document represents the expert opinion of the task force. The literature supports the need for a language movement in diabetes care and education. There are effective ways of communicating about diabetes. This article provides recommendations for language used by health care professionals and others when discussing diabetes through spoken or written words-whether directed to people with diabetes, colleagues, or the general public, as well as research questions related to language and diabetes. PMID- 29042411 TI - A Horizontally Transferred Autonomous Helitron Became a Full Polydnavirus Segment in Cotesia vestalis. AB - Bracoviruses associate symbiotically with thousands of parasitoid wasp species in the family Braconidae, working as virulence gene vectors, and allowing the development of wasp larvae within hosts. These viruses are composed of multiple DNA circles that are packaged into infective particles, and injected together with wasp's eggs during parasitization. One of the viral segments of Cotesia vestalis bracovirus contains a gene that has been previously described as a helicase of unknown origin. Here, we demonstrate that this gene is a Rep/Helicase from an intact Helitron transposable element that covers the viral segment almost entirely. We also provide evidence that this element underwent at least two horizontal transfers, which appear to have occurred consecutively: first from a Drosophila host ancestor to the genome of the parasitoid wasp C. vestalis and its bracovirus, and then from C. vestalis to a lepidopteran host (Bombyx mori). Our results reinforce the idea of parasitoid wasps as frequent agents of horizontal transfers in eukaryotes. Additionally, this Helitron-bracovirus segment is the first example of a transposable element that effectively became a whole viral circle. PMID- 29042410 TI - H+ and Pi Byproducts of Glycosylation Affect Ca2+ Homeostasis and Are Retrieved from the Golgi Complex by Homologs of TMEM165 and XPR1. AB - Glycosylation reactions in the Golgi complex and the endoplasmic reticulum utilize nucleotide sugars as donors and produce inorganic phosphate (Pi) and acid (H+) as byproducts. Here we show that homologs of mammalian XPR1 and TMEM165 (termed Erd1 and Gdt1) recycle luminal Pi and exchange luminal H+ for cytoplasmic Ca2+, respectively, thereby promoting growth of yeast cells in low Pi and low Ca2+ environments. As expected for reversible H+/Ca2+ exchangers, Gdt1 also promoted growth in high Ca2+ environments when the Golgi-localized V-ATPase was operational but had the opposite effect when the V-ATPase was eliminated. Gdt1 activities were negatively regulated by calcineurin signaling and by Erd1, which recycled the Pi byproduct of glycosylation reactions and prevented the loss of this nutrient to the environment via exocytosis. Thus, Erd1 transports Pi in the opposite direction from XPR1 and other EXS family proteins and facilitates byproduct removal from the Golgi complex together with Gdt1. PMID- 29042414 TI - Mitral Valve Leaflet Remodeling After Myocardial Infarction: Good or Evil? PMID- 29042413 TI - Mitral Leaflet Changes Following Myocardial Infarction: Clinical Evidence for Maladaptive Valvular Remodeling. AB - BACKGROUND: Ischemic mitral regurgitation (MR) is classically ascribed to functional restriction of normal leaflets, but recent studies have suggested post myocardial infarction (MI) mitral valve (MV) leaflet fibrosis and thickening, challenging valve normality. Progression of leaflet thickness post-MI has not been studied. We hypothesized that excessive MV remodeling post-MI contributes to MR. Our objectives are to characterize MV changes after MI and relate them to MR. METHODS AND RESULTS: Three groups of 40 patients with serial echocardiograms over a mean of 23.4 months were identified from an echocardiography database: patients first studied early (6+/-12 days) and late (12+/-7 years) after an inferior MI and normal controls. MV thickness was correlated with MR. We studied the mechanisms for MV changes in a sheep model (6 apical MI versus 6 controls) followed for 8 weeks, with MV cellular and histopathologic analyses. Early post MI, leaflet thickness was found to be similar to controls (2.6+/-0.5 vs 2.5+/-0.4 mm; P=0.23) but significantly increased over time (2.5+/-0.4 to 2.9+/-0.4 mm; P<0.01). In this group, patients tolerating maximal doses of renin-angiotensin blocking agents had less thickening (25% of patients; P<0.01). The late-MI group had increased thickness (3.2+/-0.5 vs 2.5+/-0.4 mm; P<0.01) without progression. At follow-up, 48% of post-MI patients had more than mild MR. Increased thickness was independently associated with MR. Experimentally, 8 weeks post-MI, MVs were 2 fold thicker than controls, with increased collagen, profibrotic transforming growth factor-beta, and endothelial-to-mesenchymal transformation, confirmed by flow cytometry. CONCLUSIONS: MV thickness increases post-MI and correlates with MR, suggesting an organic component to ischemic MR. MV fibrotic remodeling can indicate directions for future therapy. PMID- 29042415 TI - Long-Term Effects of Weight Loss and Exercise on Biomarkers Associated with Angiogenesis. AB - Background: We tested the effect of weight loss on circulating levels of the angiogenic factors VEGF and pigment epithelium-derived factor (PEDF) in postmenopausal overweight/obese women, 18 months after completing a year-long 4 arm randomized controlled trial of behavioral weight loss and/or exercise versus control (i.e., 30 months postrandomization).Methods: The 439 overweight/obese, postmenopausal women, ages 50 to 75 years, were randomized to: diet (goal: 10% weight loss, N = 118), exercise (225 min/wk moderate-to-vigorous activity, N = 117), diet + exercise (N = 117), or control (N = 87). At 12 months, 399 women gave a blood sample; 156 returned at 30 months. Biomarkers were measured by immunoassay. Changes were compared using generalized estimating equations, adjusting for baseline BMI, age, and race/ethnicity.Results: Participants randomized to diet, exercise, and diet + exercise arms had greater reductions in VEGF at 30 months (-14.1% P = 0.02; -19.7% P = 0.003; -14.5% P = 0.002, respectively) versus controls (-4.5%). There were no statistically significant changes in PEDF in any intervention arm. Participants maintaining >=10% of baseline weight loss at 30 months had greater reductions in VEGF versus those who gained weight/had no weight change (-22.3% vs. -10.2% respectively, P = 0.002). Participants maintaining any weight loss had significantly lower levels of PEDF at 30 months versus those who gained weight/no weight change.Conclusions: Sustained weight loss via diet and/or exercise results in reductions in angiogenic factors, and can be maintained up to 30-month follow-up. Limitations include relatively small numbers, and possible bias toward more successful weight loss among women who returned at 30 months.Impact: Maintaining weight loss can achieve long-term reductions in biomarkers of angiogenesis that can persist up to 18 months after completion of a weight loss intervention. Cancer Epidemiol Biomarkers Prev; 26(12); 1788-94. (c)2017 AACR. PMID- 29042417 TI - Restoration of Natural Killer Cell Antimetastatic Activity by IL12 and Checkpoint Blockade. AB - Immune checkpoint therapies target tumor antigen-specific T cells, but less is known about their effects on natural killer (NK) cells, which help control metastasis. In studying the development of lung metastases, we found that NK cells lose their cytotoxic capacity and acquire a molecular signature defined by the expression of coinhibitory receptors. In an effort to overcome this suppressive mechanism, we evaluated NK cell responses to the immunostimulatory cytokine IL12. Exposure to IL12 rescued the cytotoxicity of NK cells but also led to the emergence of an immature NK cell population that expressed high levels of the coinhibitory molecules PD-1, Lag-3, and TIGIT, thereby limiting NK cell mediated control of pulmonary metastases. Notably, checkpoint blockade therapy synergized with IL12 to fully enable tumor control by NK cells, demonstrating that checkpoint blockers are not only applicable to enhance T cell-mediated immunotherapy, but also to restore the tumor-suppressive capacity of NK cells. Cancer Res; 77(24); 7059-71. (c)2017 AACR. PMID- 29042416 TI - Nicotine Prevents and Reverses Paclitaxel-Induced Mechanical Allodynia in a Mouse Model of CIPN. AB - Chemotherapy-induced peripheral neuropathy (CIPN), a consequence of peripheral nerve fiber dysfunction or degeneration, continues to be a dose-limiting and debilitating side effect during and/or after cancer chemotherapy. Paclitaxel, a taxane commonly used to treat breast, lung, and ovarian cancers, causes CIPN in 59-78% of cancer patients. Novel interventions are needed due to the current lack of effective CIPN treatments. Our studies were designed to investigate whether nicotine can prevent and/or reverse paclitaxel-induced peripheral neuropathy in a mouse model of CIPN, while ensuring that nicotine will not stimulate lung tumor cell proliferation or interfere with the antitumor properties of paclitaxel. Male C57BL/6J mice received paclitaxel every other day for a total of four injections (8 mg/kg, i.p.). Acute (0.3-0.9 mg/kg, i.p.) and chronic (24 mg/kg per day, s.c.) administration of nicotine respectively reversed and prevented paclitaxel-induced mechanical allodynia. Blockade of the antinociceptive effect of nicotine with mecamylamine and methyllycaconitine suggests that the reversal of paclitaxel induced mechanical allodynia is primarily mediated by the alpha7 nicotinic acetylcholine receptor subtype. Chronic nicotine treatment also prevented paclitaxel-induced intraepidermal nerve fiber loss. Notably, nicotine neither promoted proliferation of A549 and H460 non-small cell lung cancer cells nor interfered with paclitaxel-induced antitumor effects, including apoptosis. Most importantly, chronic nicotine administration did not enhance Lewis lung carcinoma tumor growth in C57BL/6J mice. These data suggest that the nicotinic acetylcholine receptor-mediated pathways may be promising drug targets for the prevention and treatment of CIPN. PMID- 29042418 TI - SOCS1 Gene Therapy Improves Radiosensitivity and Enhances Irradiation-Induced DNA Damage in Esophageal Squamous Cell Carcinoma. AB - STAT3 has been implicated recently in radioresistance in cancer. In this study, we investigated the association between STAT3 and radioresistance in esophageal squamous cell carcinoma (ESCC). Strong expression of activated phospho-STAT3 (p STAT3) was observed in 16/22 ESCC patients with preoperative chemoradiotherapy (CRT), compared with 9 of 24 patients with surgery alone, where the prognosis of those with CRT was poor. Expression of p-STAT3 and the antiapoptotic proteins Mcl 1 and survivin was strongly induced in ESCC cells by irradiation. Ectopic STAT3 expression increased radioresistance, whereas expression of the STAT3 negative regulator SOCS1 via an adenoviral vector improved radioresponse. Inhibiting the STAT3-Mcl-1 axis by SOCS1 enhanced DNA damage after irradition and induced apoptosis. Combining SOCS1 with radiotherapy enhanced antitumor responses in a murine xenograft model compared with the individual therapies. Tumor repopulation occurred transiently after treatment by irradiation but not the combination SOCS1/radiotherapy. Tumors subjected to this combination expressed high levels of gammaH2AX and low levels of Ki-67, which was maintained after cessation of treatment. Overall, we demonstrated that inhibiting the STAT3-Mcl-1 signaling axis by ectopic SOCS1 improved radiosensitivity by inducing apoptosis and enhancing DNA damage after radiotherapy, offering a mechanistic rationale for a new ESCC treatment. Cancer Res; 77(24); 6975-86. (c)2017 AACR. PMID- 29042419 TI - A 3-Month-Old With Failure to Thrive and Persistent Vomiting. AB - A 3-month-old boy was admitted from his pediatrician's office for failure to thrive and vomiting. On admission, he weighed barely more than his birth weight and was cachectic with muscle wasting. His abdomen was grossly distended but soft and nontender. A trial of nasogastric feeds resulted in a worsening of his clinical status. He was transferred to the ICU, and diagnostic imaging was concerning for a distal bowel obstruction. Surgical pathology revealed a surprising diagnosis, which is described in detail in the following case. PMID- 29042420 TI - Pulcini CD, Zima BT, Kelleher KJ, Houtrow AJ. Poverty and Trends in 3 Common Chronic Disorders. Pediatrics. 2017;139(3):e20162539. PMID- 29042421 TI - A Newborn With Abdominal Pain. AB - A previously healthy 3-week-old boy presented with 5 hours of marked fussiness, abdominal distention, and poor feeding. He was afebrile and well perfused. His examination was remarkable for localized abdominal tenderness and distention. He was referred to the emergency department in which an abdominal radiograph revealed gaseous distention of the bowel with a paucity of gas in the pelvis. Complete blood cell count and urinalysis were unremarkable. His ongoing fussiness and abnormal physical examination prompted consultation with surgery and radiology. Our combined efforts ultimately established an unexpected diagnosis. PMID- 29042422 TI - Cardiac Resynchronization Therapy Using Quadripolar Versus Non-Quadripolar Left Ventricular Leads Programmed to Biventricular Pacing With Single-Site Left Ventricular Pacing: Impact on Survival and Heart Failure Hospitalization. AB - BACKGROUND: In cardiac resynchronization therapy (CRT), quadripolar (QUAD) left ventricular (LV) leads are less prone to postoperative complications than non QUAD leads. Some studies have suggested better clinical outcomes. METHODS AND RESULTS: Clinical events were assessed in 847 patients after CRT-pacing or CRT defibrillation using either QUAD (n=287) or non-QUAD (n=560), programmed to single-site site LV pacing. Over a follow-up period of 3.2 years (median [interquartile range, 1.90-5.0]), QUAD was associated with a lower total mortality (adjusted hazard ratio [aHR]: 0.32, 95% confidence interval [CI], 0.20 0.52), cardiac mortality (aHR: 0.36, 95% CI, 0.20-0.65), and heart failure (HF) hospitalization (aHR: 0.62, 95% CI, 0.39-0.99), after adjustment for age, sex, New York Heart Association class, HF etiology, device type (CRT-pacing or CRT defibrillation), comorbidities, atrial rhythm, medication, left ventricular ejection fraction, and creatinine. Death from pump failure was lower with QUAD (aHR: 0.33; 95% CI, 0.18-0.62), but no group differences emerged with respect to sudden cardiac death. There were no differences in implant-related complications. Re-interventions for LV displacement or phrenic nerve stimulation, which were lower with QUAD, predicted total mortality (aHR: 1.68, 95% CI, 1.11-2.54), cardiac mortality (aHR: 2.61, 95% CI, 1.66-4.11) and HF hospitalization (aHR: 2.09, 95% CI, 1.22-3.58). CONCLUSIONS: CRT using QUAD, programmed to biventricular pacing with single-site LV pacing, is associated with a lower total mortality, cardiac mortality, and HF hospitalization. These trends were observed for both CRT-defibrillation and CRT-pacing, after adjustment for HF cause and other confounders. Re-intervention for LV lead displacement or phrenic nerve stimulation was associated with worse outcomes. PMID- 29042423 TI - Low Prevalence of Inappropriate Shocks in Patients With Inherited Arrhythmia Syndromes With the Subcutaneous Implantable Defibrillator Single Center Experience and Long-Term Follow-Up. AB - BACKGROUND: Up to 40% of patients with transvenous implantable cardioverter defibrillator (ICD) experience lead-associated complications and may suffer from high complication rates when lead extraction is indicated. Subcutaneous ICD may represent a feasible alternative; however, the efficacy of the subcutaneous ICD in the detection and treatment of ventricular arrhythmias in patients with hereditary arrhythmia syndromes has not been fully evaluated. METHODS AND RESULTS: Patients with primary hereditary arrhythmia syndromes who fulfilled indication for defibrillator placement were eligible for enrollment. Between 2010 and 2016, 62 consecutive patients with primary hereditary arrhythmia syndromes, without indication for antibradycardia therapy, were enrolled in the study. Mean follow-up was 31.0+/-14.2 months. The study cohort comprised of 24 patients with Brugada syndrome, 17 with idiopathic ventricular fibrillation, 6 with long-QT syndrome, 1 with short-QT syndrome, 3 with catecholaminergic polymorphic ventricular tachycardia, 8 with hypertrophic cardiomyopathy, and 3 with arrhythmogenic right ventricular cardiomyopathy. Thirty-nine patients were implanted for secondary prevention. Twenty-two patients had a previous transvenous ICD implanted, but required revision because of infection or lead defects. A total of 20 spontaneous ventricular tachyarrhythmias requiring shock intervention occurred in 10 patients during follow-up. All episodes were terminated within the first ICD shock delivery with 80 J. Two patients had inappropriate therapies caused by oversensing following an uneventful implantation. No pocket-site infections and no premature revisions have occurred during follow-up. CONCLUSIONS: Our study supports the use of the subcutaneous ICD for both secondary and primary prevention of sudden cardiac death as a reliable alternative to the conventional transvenous ICD. PMID- 29042424 TI - Angiotensin II Receptor-Neprilysin Inhibitor Sacubitril/Valsartan Improves Endothelial Dysfunction in Spontaneously Hypertensive Rats. AB - BACKGROUND: We have previously demonstrated that antihypertensive treatment with renin-angiotensin system inhibitors restores the impaired endothelium-dependent hyperpolarization (EDH)-mediated responses in spontaneously hypertensive rats (SHRs). Herein, we investigated whether the angiotensin II receptor-neprilysin inhibitor sacubitril/valsartan (LCZ696) would improve reduced EDH-mediated responses and whether LCZ696 would exert additional effects on endothelium dependent and endothelium-independent vasorelaxation compared with an angiotensin II type 1 receptor blocker alone during hypertension. METHODS AND RESULTS: SHRs were treated for 3 months with either LCZ696 or valsartan, from the age of 8 to 11 months. Age-matched, untreated SHRs and Wistar-Kyoto rats served as controls. Membrane potentials and contractile responses were recorded from the isolated superior mesenteric arteries. Acetylcholine-induced, EDH-mediated responses were impaired in untreated SHRs compared with Wistar-Kyoto rats. EDH-mediated responses were similarly improved in the LCZ696- and valsartan-treated SHRs. No difference was observed in acetylcholine-induced, nitric oxide-mediated relaxations among the 4 groups. Endothelium-independent relaxations in response to a nitric oxide donor, sodium nitroprusside, and those to levcromakalim, an ATP sensitive K+-channel opener, were similar among the 4 groups; however, the sensitivities to levcromakalim were significantly higher in both LCZ696- and valsartan-treated SHRs. CONCLUSIONS: LCZ696 appears to be as effective as valsartan in improving the impaired EDH-mediated responses during hypertension. LCZ696 and valsartan exert similar beneficial effects on endothelium-independent relaxation via enhanced sensitivity of the ATP-sensitive K+ channel. However, the dual blockade of renin-angiotensin system and neutral endopeptidase with LCZ696 does not appear to provide additional benefit over valsartan alone on vasomotor function in mesenteric arteries of SHRs. PMID- 29042425 TI - Cardiovascular and Metabolic Consequences of Testosterone Supplements in Young and Old Male Spontaneously Hypertensive Rats: Implications for Testosterone Supplements in Men. AB - BACKGROUND: The safety of testosterone supplements in men remains unclear. In the present study, we tested the hypothesis that in young and old male spontaneously hypertensive rats (SHR), long-term testosterone supplements increase blood pressure and that the mechanism is mediated in part by activation of the renin angiotensin system. METHODS AND RESULTS: In untreated males, serum testosterone exhibited a sustained decrease after 5 months of age, reaching a nadir by 18 to 22 months of age. The reductions in serum testosterone were accompanied by an increase in body weight until very old age (18 months). Testosterone supplements were given for 6 weeks to young (12 weeks-YMSHR) and old (21-22 months-OMSHR) male SHR that increased serum testosterone by 2-fold in young males and by 4-fold in old males. Testosterone supplements decreased body weight, fat mass, lean mass, and plasma leptin, and increased plasma estradiol in YMSHR but had no effect in OMSHR. Mean arterial pressure (MAP) was significantly higher in OMSHR than in YMSHR and testosterone supplements decreased MAP in OMSHR, but significantly increased MAP in YMSHR. Enalapril, the angiotensin-converting enzyme inhibitor, reduced MAP in both control and testosterone-supplemented YMSHR, but had a greater effect on MAP in testosterone-treated rats, suggesting the mechanism responsible for the increase in MAP in YMSHR is mediated at least in part by activation of the renin-angiotensin system. CONCLUSIONS: Taken together with previous studies, these data suggest that testosterone supplements may have differential effects on men depending on age, cardiovascular and metabolic status, and dose and whether given long-term or short-term. PMID- 29042426 TI - Relative Survival After Transcatheter Aortic Valve Implantation: How Do Patients Undergoing Transcatheter Aortic Valve Implantation Fare Relative to the General Population? AB - BACKGROUND: Transcatheter aortic valve implantation (TAVI) is indicated for patients with aortic stenosis who are intermediate-high surgical risk. Although all-cause mortality rates after TAVI are established, survival attributable to the procedure is unclear because of competing causes of mortality. The aim was to report relative survival (RS) after TAVI, which accounts for background mortality risks in a matched general population. METHODS AND RESULTS: National cohort data (n=6420) from the 2007 to 2014 UK TAVI registry were matched by age, sex, and year to mortality rates for England and Wales (population, 57.9 million). The Ederer II method related observed patient survival to that expected from the matched general population. We modelled RS using a flexible parametric approach that modelled the log cumulative hazard using restricted cubic splines. RS of the TAVI cohort was 95.4%, 90.2%, and 83.8% at 30 days, 1 year, and 3 years, respectively. By 1-year follow-up, mortality hazards in the >85 years age group were not significantly different from those of the matched general population; by 3 years, survival rates were comparable. The flexible parametric RS model indicated that increasing age was associated with significantly lower excess hazards after the procedure; for example, by 2 years, a 5-year increase in age was associated with 20% lower excess mortality over the general population. CONCLUSIONS: RS after TAVI was high, and survival rates in those aged >85 years approximated those of a matched general population within 3 years. High rates of RS indicate that patients selected for TAVI tolerate the risks of the procedure well. PMID- 29042428 TI - Sex Differential in 15-Hydroxyprostaglandin Dehydrogenase Levels in the Lumen of Human Intracranial Aneurysms. AB - BACKGROUND: Aspirin is a promising medical therapy for the prevention of intracranial aneurysm (IA) rupture. Recently, we found that men have a better response to aspirin than women. The purpose of this study was to determine whether a sex differential exists in the level of 15-hydroxyprostaglandin dehydrogenase (15-PGDH) in the lumen of human IAs. METHODS AND RESULTS: Consecutive patients undergoing coiling or stent-assisted coiling for a saccular IA at our institution were enrolled. Two samples (A and B) were collected from IA lumens, and the plasma level of 15-PGDH was measured using an ELISA-based method. The study included 38 patients, with 20 women and 18 men. Women and men were comparable on baseline characteristics. The mean plasma concentration of 15-PGDH did not differ statistically between sample A (62.8+/-16.2 ng/mL) and sample B (61.8+/-17.9 ng/mL; 95% confidence interval -6.6 to 9.4). The mean plasma concentration of 15-PGDH in IA lumens of samples A and B was significantly higher in men (73.8+/-13.5 ng/mL) than women (49.6+/-7.8 ng/mL; P<0.0001). CONCLUSIONS: Higher enzyme levels of 15-PGDH exist in the lumen of IAs of men compared with women. This observation could explain why aspirin confers better protection against IA rupture in men than in women. The susceptibility of an individual to aspirin may differ according to the level of 15-PGDH. PMID- 29042427 TI - Predictors of Death in Adults With Duchenne Muscular Dystrophy-Associated Cardiomyopathy. AB - BACKGROUND: Duchenne muscular dystrophy (DMD) is frequently complicated by development of a cardiomyopathy. Despite significant medical advances provided to DMD patients over the past 2 decades, there remains a group of DMD patients who die prematurely. The current study sought to identify a set of prognostic factors that portend a worse outcome among adult DMD patients. METHODS AND RESULTS: A retrospective cohort of 43 consecutive patients was followed in the adult UT Southwestern Neuromuscular Cardiomyopathy Clinic. Clinical data were abstracted from the electronic medical record to generate baseline characteristics. The population was stratified by survival to time of analysis and compared with characteristics associated with death. The DMD population was in the early 20s, with median follow-up times over 2 years. All the patients had developed a cardiomyopathy, with the majority of the patients on angiotensin-converting enzyme inhibitors (86%) and steroids (56%), but few other guideline-directed heart failure medications. Comparison between the nonsurviving and surviving cohorts found several poor prognostic factors, including lower body mass index (17.3 [14.8-19.3] versus 25.8 [20.8-29.1] kg/m2, P<0.01), alanine aminotransferase levels (26 [18-42] versus 53 [37-81] units/L, P=0.001), maximum inspiratory pressures (13 [0-30] versus 33 [25-40] cmH2O, P=0.03), and elevated cardiac biomarkers (N-terminal pro-brain natriuretic peptide: 288 [72-1632] versus 35 [21-135] pg/mL, P=0.03]. CONCLUSIONS: The findings demonstrate a DMD population with a high burden of cardiomyopathy. The nonsurviving cohort was comparatively underweight, and had worse respiratory profiles and elevated cardiac biomarkers. Collectively, these factors highlight a high-risk cardiovascular population with a worse prognosis. PMID- 29042429 TI - Both Light Intensity and Moderate-to-Vigorous Physical Activity Measured by Accelerometry Are Favorably Associated With Cardiometabolic Risk Factors in Older Women: The Objective Physical Activity and Cardiovascular Health (OPACH) Study. AB - BACKGROUND: The relationship between light intensity physical activity (PA), which is common in older adults, and cardiovascular disease (CVD) risk factors is unclear. This study examined associations of accelerometer-measured PA intensity with CVD risk factors in older women of different race-ethnicities. METHODS AND RESULTS: Cross-sectional analyses were conducted in 4832 women (mean age 78.9 years; 52.5% white, 30.5% black, 17.1% Hispanic) who were without known CVD and wore triaxial accelerometers a minimum of 4 of 7 days with >=10 hours/d awake wear-time. Vector magnitude counts per 15-s epoch were used to define time spent in low light (19-225 counts/15 s), high light (226-518), and moderate-to vigorous; >=519) intensity PA. Fasting CVD biomarkers, resting blood pressure, waist girth, body mass index, and 10-year predicted CVD risk (Reynolds Risk Score) were measured. After adjusting for age, wear time, race-ethnicity, and potential confounders, each PA measure was favorably associated with mean high density lipoprotein, triglyceride, glucose, C-reactive protein, body mass index, waist girth, and Reynolds Risk Score (P<0.05, all). Associations with mean blood pressure, insulin, and total and low-density lipoprotein cholesterol were variable. A 30-minute/d increment in PA was associated, on average, with odds ratios for high predicted CVD risk (Reynolds Risk Score >=20) of 0.96 (95% confidence interval, 0.92, 1.00), 0.88 (0.83, 0.94), and 0.85 (0.79, 0.91) for low light, high light, and moderate-to-vigorous, respectively, and remained significant with further mutual control for PA intensity. CONCLUSIONS: PA measured by accelerometry, including light intensity PA, was associated with lower CVD risk factor levels in race-ethnically diverse older women. PMID- 29042431 TI - In situ genotyping of a pooled strain library after characterizing complex phenotypes. AB - In this work, we present a proof-of-principle experiment that extends advanced live cell microscopy to the scale of pool-generated strain libraries. We achieve this by identifying the genotypes for individual cells in situ after a detailed characterization of the phenotype. The principle is demonstrated by single molecule fluorescence time-lapse imaging of Escherichia coli strains harboring barcoded plasmids that express a sgRNA which suppresses different genes in the E. coli genome through dCas9 interference. In general, the method solves the problem of characterizing complex dynamic phenotypes for diverse genetic libraries of cell strains. For example, it allows screens of how changes in regulatory or coding sequences impact the temporal expression, location, or function of a gene product, or how the altered expression of a set of genes impacts the intracellular dynamics of a labeled reporter. PMID- 29042432 TI - Special Meeting Sections for the ASM Conference on Mechanisms of Interbacterial Cooperation and Competition. PMID- 29042430 TI - Ideal Cardiovascular Health and Incident Cardiovascular Disease: Heterogeneity Across Event Subtypes and Mediating Effect of Blood Biomarkers: The PRIME Study. AB - BACKGROUND: The aim of this study was to investigate whether the association between baseline cardiovascular health (CVH) and incident cardiovascular disease differs according to coronary heart disease (CHD) and stroke subtypes, and to assess the mediating effect of inflammatory and hemostatic blood biomarkers. METHODS AND RESULTS: The association of ideal CVH with outcomes was derived in 9312 middle-aged men from Northern Ireland and France (whole cohort) in multivariable Cox proportional hazards regression analysis. The mediating effect of baseline inflammatory and hemostatic blood biomarkers was evaluated in a case control study nested within the cohort after 10 years of follow-up. After a median follow-up of 10 years, 614 first CHD events and 117 first stroke events were adjudicated. Compared with those with poor CVH, those with an ideal CVH profile at baseline had a 72% lower risk of CHD (hazard ratio=0.28; 95% confidence interval, 0.17; 0.46) and a 76% lower risk of stroke (hazard ratio =0.24; 95% confidence interval, 0.06; 0.98). The magnitude of the risk reductions was similar for incident angina and myocardial infarction, but was lower for ischemic stroke. In the controls, the mean concentrations of high-sensitivity C reactive protein, IL-6, and fibrinogen decreased with higher CVH status. Furthermore, the association of behavioral CVH with incident CHD was partly mediated by high-sensitivity C-reactive protein (16.69%), IL-6 (8.52%), and fibrinogen (7.30%) CONCLUSIONS: Our study shows no clear heterogeneity in the association of baseline CVH with the main subtypes of cardiovascular disease. This supports a universal promotion of ideal CVH for all cardiovascular disease subtypes. Furthermore, our mediation analysis suggests that the lower risk of CHD associated with ideal CVH is partly mediated by lower inflammatory and hemostatic blood biomarkers. PMID- 29042434 TI - Trafficking of Kv2.1 Channels to the Axon Initial Segment by a Novel Nonconventional Secretory Pathway. AB - Kv2.1 is a major delayed-rectifier voltage-gated potassium channel widely expressed in neurons of the CNS. Kv2.1 localizes in high-density cell-surface clusters in the soma and proximal dendrites as well as in the axon initial segment (AIS). Given the crucial roles of both of these compartments in integrating signal input and then generating output, this localization of Kv2.1 is ideal for regulating the overall excitability of neurons. Here we used fluorescence recovery after photobleaching imaging, mutagenesis, and pharmacological interventions to investigate the molecular mechanisms that control the localization of Kv2.1 in these two different membrane compartments in cultured rat hippocampal neurons of mixed sex. Our data uncover a unique ability of Kv2.1 channels to use two molecularly distinct trafficking pathways to accomplish this. Somatodendritic Kv2.1 channels are targeted by the conventional secretory pathway, whereas axonal Kv2.1 channels are targeted by a nonconventional trafficking pathway independent of the Golgi apparatus. We further identified a new AIS trafficking motif in the C-terminus of Kv2.1, and show that putative phosphorylation sites in this region are critical for the restricted and clustered localization in the AIS. These results indicate that neurons can regulate the expression and clustering of Kv2.1 in different membrane domains independently by using two distinct localization mechanisms, which would allow neurons to precisely control local membrane excitability.SIGNIFICANCE STATEMENT Our study uncovered a novel mechanism that targets the Kv2.1 voltage gated potassium channel to two distinct trafficking pathways and two distinct subcellular destinations: the somatodendritic plasma membrane and that of the axon initial segment. We also identified a distinct motif, including putative phosphorylation sites, that is important for the AIS localization. This raises the possibility that the destination of a channel protein can be dynamically regulated via changes in post-translational modification, which would impact the excitability of specific membrane compartments. PMID- 29042433 TI - Serotonin Decreases the Gain of Visual Responses in Awake Macaque V1. AB - Serotonin, an important neuromodulator in the brain, is implicated in affective and cognitive functions. However, its role even for basic cortical processes is controversial. For example, in the mammalian primary visual cortex (V1), heterogenous serotonergic modulation has been observed in anesthetized animals. Here, we combined extracellular single-unit recordings with iontophoresis in awake animals. We examined the role of serotonin on well-defined tuning properties (orientation, spatial frequency, contrast, and size) in V1 of two male macaque monkeys. We find that in the awake macaque the modulatory effect of serotonin is surprisingly uniform: it causes a mainly multiplicative decrease of the visual responses and a slight increase in the stimulus-selective response latency. Moreover, serotonin neither systematically changes the selectivity or variability of the response, nor the interneuronal correlation unexplained by the stimulus ("noise-correlation"). The modulation by serotonin has qualitative similarities with that for a decrease in stimulus contrast, but differs quantitatively from decreasing contrast. It can be captured by a simple additive change to a threshold-linear spiking nonlinearity. Together, our results show that serotonin is well suited to control the response gain of neurons in V1 depending on the animal's behavioral or motivational context, complementing other known state-dependent gain-control mechanisms.SIGNIFICANCE STATEMENT Serotonin is an important neuromodulator in the brain and a major target for drugs used to treat psychiatric disorders. Nonetheless, surprisingly little is known about how it shapes information processing in sensory areas. Here we examined the serotonergic modulation of visual processing in the primary visual cortex of awake behaving macaque monkeys. We found that serotonin mainly decreased the gain of the visual responses, without systematically changing their selectivity, variability, or covariability. This identifies a simple computational function of serotonin for state-dependent sensory processing, depending on the animal's affective or motivational state. PMID- 29042435 TI - Autophagy induction under carbon starvation conditions is negatively regulated by carbon catabolite repression. AB - Autophagy is a conserved process in which cytoplasmic components are sequestered for degradation in the vacuole/lysosomes in eukaryotic cells. Autophagy is induced under a variety of starvation conditions, such as the depletion of nitrogen, carbon, phosphorus, zinc, and others. However, apart from nitrogen starvation, it remains unclear how these stimuli induce autophagy. In yeast, for example, it remains contentious whether autophagy is induced under carbon starvation conditions, with reports variously suggesting both induction and lack of induction upon depletion of carbon. We therefore undertook an analysis to account for these inconsistencies, concluding that autophagy is induced in response to abrupt carbon starvation when cells are grown with glycerol but not glucose as the carbon source. We found that autophagy under these conditions is mediated by nonselective degradation that is highly dependent on the autophagosome-associated scaffold proteins Atg11 and Atg17. We also found that the extent of carbon starvation-induced autophagy is positively correlated with cells' oxygen consumption rate, drawing a link between autophagy induction and respiratory metabolism. Further biochemical analyses indicated that maintenance of intracellular ATP levels is also required for carbon starvation-induced autophagy and that autophagy plays an important role in cell viability during prolonged carbon starvation. Our findings suggest that carbon starvation-induced autophagy is negatively regulated by carbon catabolite repression. PMID- 29042436 TI - Wilms tumor protein-dependent transcription of VEGF receptor 2 and hypoxia regulate expression of the testis-promoting gene Sox9 in murine embryonic gonads. AB - Wilms tumor protein 1 (WT1) has been implicated in the control of several genes in sexual development, but its function in gonad formation is still unclear. Here, we report that WT1 stimulates expression of Kdr, the gene encoding VEGF receptor 2, in murine embryonic gonads. We found that WT1 and KDR are co expressed in Sertoli cells of the testes and somatic cells of embryonic ovaries. Vivo-morpholino-mediated WT1 knockdown decreased Kdr transcripts in cultured embryonic gonads at multiple developmental stages. Furthermore, WT1 bound to the Kdr promoter in the chromatin of embryonic testes and ovaries. Forced expression of the WT1(-KTS) isoform, which functions as a transcription factor, increased KDR mRNA levels, whereas the WT1(+KTS) isoform, which acts presumably on the post transcriptional level, did not. ChIP indicated that WT1(-KTS), but not WT1(+KTS), binds to the KDR promoter. Treatment with the KDR tyrosine kinase inhibitor SU1498 or the KDR ligand VEGFA revealed that KDR signaling represses the testis promoting gene Sox9 in embryonic XX gonads. WT1 knockdown abrogated the stimulatory effect of SU1498-mediated KDR inhibition on Sox9 expression. Exposure to 1% O2 to mimic the low-oxygen conditions in the embryo increased Vegfa expression but did not affect Sox9 mRNA levels in gonadal explants. However, incubation in 1% O2 in the presence of SU1498 significantly reduced Sox9 transcripts in cultured testes and increased Sox9 levels in ovaries. These findings demonstrate that both the local oxygen environment and WT1, which enhances KDR expression, contribute to sex-specific Sox9 expression in developing murine gonads. PMID- 29042437 TI - Post-translational processing and membrane translocation of the yeast regulatory Mid1 subunit of the Cch1/VGCC/NALCN cation channel family. AB - Saccharomyces cerevisiae Mid1 is composed of 548 amino acids and a regulatory subunit of Cch1, a member of the eukaryotic pore-forming, four-domain cation channel family. The amino acid sequence and voltage insensitivity of Cch1 are more similar to those of Na+ leak channel non-selective (NALCN) than to the alpha1 subunit of voltage-gated Ca2+ channels (VGCCs). Despite a lack in overall primary sequence similarity, Mid1 resembles in some aspects VGCC alpha2/delta regulatory subunits and NALCN-associated proteins. Unlike animal alpha2/delta subunits, Mid1 and NALCN-associated proteins are essential for the function of the pore-forming subunit. We herein investigated the processing and membrane translocation of Mid1. Mid1 was found to have a 20-amino-acid-long N-terminal signal peptide and appeared to be entirely localized extracellularly. A signal peptide-deleted Mid1 protein, Mid1DeltaN23, was N-glycosylated and retained Ca2+ influx activity through Cch1. Moreover, an N-terminal truncation analysis revealed that even truncated Mid1 lacking 209 N-terminal amino acid residues was N-glycosylated and maintained Ca2+ influx activity. A 219-amino-acid-truncated Mid1 protein lost this activity but was still N-glycosylated. In the sec71Delta and sec72Delta single mutants defective in the post-translational protein transport into the endoplasmic reticulum (ER), Mid1DeltaN23 could not mediate Ca2+ influx and did not undergo N-glycosylation, whereas wild-type Mid1 exhibited normal Ca2+ influx activity and N-glycosylation in these mutants. Therefore, the signal peptide-lacking Mid1DeltaN23 protein may be translocated to the ER exclusively through the post-translational protein translocation, which typically requires an N-terminal signal peptide. Mid1 may provide a tool for studying mechanisms of protein translocation into the ER. PMID- 29042438 TI - The serum protein renalase reduces injury in experimental pancreatitis. AB - Acute pancreatitis is a disease associated with inflammation and tissue damage. One protein that protects against acute injury, including ischemic injury to both the kidney and heart, is renalase, which is secreted into the blood by the kidney and other tissues. However, whether renalase reduces acute injury associated with pancreatitis is unknown. Here, we used both in vitro and in vivo murine models of acute pancreatitis to study renalase's effects on this condition. In isolated pancreatic lobules, pretreatment with recombinant human renalase (rRNLS) blocked zymogen activation caused by cerulein, carbachol, and a bile acid. Renalase also blocked cerulein-induced cell injury and histological changes. In the in vivo cerulein model of pancreatitis, genetic deletion of renalase resulted in more severe disease, and administering rRNLS to cerulein-exposed WT mice after pancreatitis onset was protective. Because pathological increases in acinar cell cytosolic calcium levels are central to the initiation of acute pancreatitis, we also investigated whether rRNLS could function through its binding protein, plasma membrane calcium ATPase 4b (PMCA4b), which excretes calcium from cells. We found that PMCA4b is expressed in both murine and human acinar cells and that a PMCA4b-selective inhibitor worsens pancreatitis-induced injury and blocks the protective effects of rRNLS. These findings suggest that renalase is a protective plasma protein that reduces acinar cell injury through a plasma membrane calcium ATPase. Because exogenous rRNLS reduces the severity of acute pancreatitis, it has potential as a therapeutic agent. PMID- 29042439 TI - A genome-wide screen in Escherichia coli reveals that ubiquinone is a key antioxidant for metabolism of long-chain fatty acids. AB - Long-chain fatty acids (LCFAs) are used as a rich source of metabolic energy by several bacteria including important pathogens. Because LCFAs also induce oxidative stress, which may be detrimental to bacterial growth, it is imperative to understand the strategies employed by bacteria to counteract such stresses. Here, we performed a genetic screen in Escherichia coli on the LCFA, oleate, and compared our results with published genome-wide screens of multiple non fermentable carbon sources. This large-scale analysis revealed that among components of the aerobic electron transport chain (ETC), only genes involved in the biosynthesis of ubiquinone, an electron carrier in the ETC, are highly required for growth in LCFAs when compared with other carbon sources. Using genetic and biochemical approaches, we show that this increased requirement of ubiquinone is to mitigate elevated levels of reactive oxygen species generated by LCFA degradation. Intriguingly, we find that unlike other ETC components whose requirement for growth is inversely correlated with the energy yield of non fermentable carbon sources, the requirement of ubiquinone correlates with oxidative stress. Our results therefore suggest that a mechanism in addition to the known electron carrier function of ubiquinone is required to explain its antioxidant role in LCFA metabolism. Importantly, among the various oxidative stress combat players in E. coli, ubiquinone acts as the cell's first line of defense against LCFA-induced oxidative stress. Taken together, our results emphasize that ubiquinone is a key antioxidant during LCFA metabolism and therefore provides a rationale for investigating its role in LCFA-utilizing pathogenic bacteria. PMID- 29042440 TI - Plant pathogenesis-related proteins of the cacao fungal pathogen Moniliophthora perniciosa differ in their lipid-binding specificities. AB - Moniliophthora perniciosa is the causative agent of witches' broom disease, which devastates cacao cultures in South America. This pathogenic fungus infects meristematic tissues and derives nutrients from the plant apoplast during an unusually long-lasting biotrophic stage. To survive, the fungus produces proteins to suppress the plant immune response. Proteins of the PR-1 (pathogenesis-related 1)/CAP superfamily have been implicated in fungal virulence and immune suppression. The genome of M. perniciosa encodes 11 homologues of plant PR-1 proteins, designated MpPR-1 proteins, but their precise mode of action is poorly understood. In this study, we expressed MpPR-1 proteins in a yeast model lacking endogenous CAP proteins. We show that some members of the MpPR-1 family bind and promote secretion of sterols, whereas others bind and promote secretion of fatty acids. Lipid binding by purified MpPR-1 occurs with micromolar affinity and is saturable in vitro Sterol binding by MpPR-1 requires the presence of a flexible loop region containing aromatic amino acids, the caveolin-binding motif. Remarkably, MpPR-1 family members that do not bind sterols can be converted to sterol binders by a single point mutation in the caveolin-binding motif. We discuss the possible implications of the lipid-binding activity of MpPR-1 family members with regard to the mode of action of these proteins during M. perniciosa infections. PMID- 29042441 TI - Transcription factor 19 interacts with histone 3 lysine 4 trimethylation and controls gluconeogenesis via the nucleosome-remodeling-deacetylase complex. AB - Transcription factor 19 (TCF19) has been reported as a type 1 diabetes-associated locus involved in maintenance of pancreatic beta cells through a fine-tuned regulation of cell proliferation and apoptosis. TCF19 also exhibits genomic association with type 2 diabetes, although the precise molecular mechanism remains unknown. It harbors both a plant homeodomain and a forkhead-associated domain implicated in epigenetic recognition and gene regulation, a phenomenon that has remained unexplored. Here, we show that TCF19 selectively interacts with histone 3 lysine 4 trimethylation through its plant homeodomain finger. Knocking down TCF19 under high-glucose conditions affected many metabolic processes, including gluconeogenesis. We found that TCF19 overexpression represses de novo glucose production in HepG2 cells. The transcriptional repression of key genes, induced by TCF19, coincided with NuRD (nucleosome-remodeling-deacetylase) complex recruitment to the promoters of these genes. TCF19 interacted with CHD4 (chromodomain helicase DNA-binding protein 4), which is a part of the NuRD complex, in a glucose concentration-independent manner. In summary, our results show that TCF19 interacts with an active transcription mark and recruits a co repressor complex to regulate gluconeogenic gene expression in HepG2 cells. Our study offers critical insights into the molecular mechanisms of transcriptional regulation of gluconeogenesis and into the roles of chromatin readers in metabolic homeostasis. PMID- 29042442 TI - 1alpha,25-Dihydroxyvitamin D3 promotes bone formation by promoting nuclear exclusion of the FoxO1 transcription factor in diabetic mice. AB - 1alpha,25-Dihydroxyvitamin D3 (1,25(OH)2D3) is the active form of vitamin D, which is responsible for reducing the risk for diabetes mellitus (DM), decreasing insulin resistance, and improving insulin secretion. Previous studies have shown that 1,25(OH)2D3 inhibited the activity of FoxO1, which has been implicated in the regulation of glucose metabolism. However, its function and mechanism of action in DM-induced energy disorders and also in bone development remains unclear. Here, using in vitro and in vivo approaches including osteoblast specific, conditional FoxO1-knock-out mice, we demonstrate that 1,25(OH)2D3 ameliorates abnormal osteoblast proliferation in DM-induced oxidative stress conditions and rescues the impaired glucose and bone metabolism through FoxO1 nuclear exclusion resulting from the activation of PI3K/Akt signaling. Using alizarin red staining, alkaline phosphatase assay, Western blot, and real-time qPCR techniques, we found that 1,25(OH)2D3 promotes osteoblast differentiation and expression of osteogenic phenotypic markers (i.e. alkaline phosphatase (1), collagen 1 (COL-1), osteocalcin (OCN), and osteopontin (OPN)) in a high-glucose environment. Moreover, 1,25(OH)2D3 increased both total OCN secretion and levels of uncarboxylated OCN (GluOC) by phosphorylating FoxO1 and promoting its nuclear exclusion, indicated by Western blot and cell immunofluorescence analyses. Taken together, our findings confirm that FoxO1 is a key mediator involved in glucose homeostasis and indicate that 1,25(OH)2D3 improves glucose metabolism and bone development via regulation of PI3K/Akt/FoxO1/OCN pathway. PMID- 29042443 TI - Mammalian Numb protein antagonizes Notch by controlling postendocytic trafficking of the Notch ligand Delta-like 4. AB - The biological antagonism between the signaling proteins Numb and Notch has been implicated in the regulation of many developmental processes, especially in asymmetric cell division. Mechanistic studies show that Numb inactivates Notch via endocytosis and proteasomal degradation that directly reduce Notch protein levels at the cell surface. However, some aspects of how Numb antagonizes Notch remain unclear. Here, we report a novel mechanism in which Numb acts as a Notch antagonist by controlling the intracellular destination and stability of the Notch ligand Delta-like 4 (Dll4) through a postendocytic-sorting process. We observed that Numb/Numblike knockdown increases the stability and cell-surface accumulation of Dll4. Further study indicated that Numb acts as a sorting switch to control the postendocytic trafficking of Dll4. Of note, the Numb/Numblike knockdown decreased Dll4 delivery to the lysosome, while increasing the recycling of Dll4 to the plasma membrane. Moreover, we demonstrate that this enrichment of Dll4 at the cell surface within Numb/Numblike knockdown cells could activate Notch signaling in neighboring cells. We also provide evidence that Numb negatively controls the Dll4 plasma membrane recycling through a well-documented recycling regulator protein AP1. In conclusion, our study has uncovered a molecular mechanism whereby Numb regulates the endocytic trafficking of the Notch ligand Dll4. Our findings provide a new perspective on how Numb counteracts Notch signaling and sheds additional critical insights into the antagonistic relationship between Numb and Notch signaling. PMID- 29042444 TI - Development of novel biosensors to study receptor-mediated activation of the G protein alpha subunits Gs and Golf. AB - Galphas (Gs) and Galphaolf (Golf) are highly homologous G-protein alpha subunits that activate adenylate cyclase, thereby serving as crucial mediators of intracellular signaling. Because of their dramatically different brain expression patterns, we studied similarities and differences between their activation processes with the aim of comparing their receptor coupling mechanisms. We engineered novel luciferase- and Venus-fused Galpha constructs that can be used in bioluminescence resonance energy transfer assays. In conjunction with molecular simulations, these novel biosensors were used to determine receptor activation-induced changes in conformation. Relative movements in Gs were consistent with the crystal structure of beta2 adrenergic receptor in complex with Gs Conformational changes in Golf activation are shown to be similar to those in Gs Overall the current study reveals general similarities between Gs and Golf activation at the molecular level and provides a novel set of tools to search for Gs- and Golf-specific receptor pharmacology. In view of the wide functional and pharmacological roles of Gs- and Golf-coupled dopamine D1 receptor and adenosine A2A receptor in the brain and other organs, elucidating their differential structure-function relationships with Gs and Golf might provide new approaches for the treatment of a variety of neuropsychiatric disorders. In particular, these novel biosensors can be used to reveal potentially therapeutic dopamine D1 receptor and adenosine A2A receptor ligands with functionally selective properties between Gs and Golf signaling. PMID- 29042445 TI - Analysis of substrate specificity of Trypanosoma brucei oligosaccharyltransferases (OSTs) by functional expression of domain-swapped chimeras in yeast. AB - N-Linked protein glycosylation is an essential and highly conserved post translational modification in eukaryotes. The transfer of a glycan from a lipid linked oligosaccharide (LLO) donor to the asparagine residue of a nascent polypeptide chain is catalyzed by an oligosaccharyltransferase (OST) in the lumen of the endoplasmic reticulum (ER). Trypanosoma brucei encodes three paralogue single-protein OSTs called TbSTT3A, TbSTT3B, and TbSTT3C that can functionally complement the Saccharomyces cerevisiae OST, making it an ideal experimental system to study the fundamental properties of OST activity. We characterized the LLO and polypeptide specificity of all three TbOST isoforms and their chimeric forms in the heterologous expression host S. cerevisiae where we were able to apply yeast genetic tools and newly developed glycoproteomics methods. We demonstrated that TbSTT3A accepted LLO substrates ranging from Man5GlcNAc2 to Man7GlcNAc2 In contrast, TbSTT3B required more complex precursors ranging from Man6GlcNAc2 to Glc3Man9GlcNAc2 structures, and TbSTT3C did not display any LLO preference. Sequence differences between the isoforms cluster in three distinct regions. We have swapped the individual regions between different OST proteins and identified region 2 to influence the specificity toward the LLO and region 1 to influence polypeptide substrate specificity. These results provide a basis to further investigate the molecular mechanisms and contribution of single amino acids in OST interaction with its substrates. PMID- 29042447 TI - Anisocoria Secondary to Anticholinergic Mydriasis from Homeopathic Pink Eye Relief Drops. AB - A woman, aged 70 years, developed anisocoria after applying homeopathic eye drops (Similasan Pink Eye Relief) to her left eye. Her pupil was dilated for two weeks and did not respond to light or near stimuli for one week. Both 0.1% and 1% pilocarpine failed to constrict her left pupil, and magnetic resonance imaging of her brain did not reveal any abnormality. The eye drops she had used contain belladonna extracts which have a natural atropine component. This case demonstrates the importance, when evaluating a patient presenting with anisocoria, of knowing the chemical ingredients of the homeopathic eye drops, which often are not listed. PMID- 29042446 TI - Clinical and metabolic consequences of L-serine supplementation in hereditary sensory and autonomic neuropathy type 1C. AB - Hereditary sensory neuropathy type 1 (HSAN1) may be the first genetic neuropathy amenable to a specific mechanism-based treatment, as L-serine supplementation can be used to lower the neurotoxic levels of 1-deoxysphingolipids (1-deoxySL) that cause the neurodegeneration. The treatment is so far untested in HSAN1C caused by variants in the serine palmitoyl transferase subunit 2 (SPTLC2) gene. The aim of this study was to establish whether oral L-serine lowers 1-deoxySL in a patient with HSAN1C, to perform a dose escalation to find the minimal effective dose, and to assess the safety profile and global metabolic effects of the treatment. Our patient underwent a 52-wk treatment in which the L-serine dose was titrated up to 400 mg/kg/day. She was followed up by repeated clinical examination, nerve conduction testing, and skin biopsies to document effects on small nerve fibers. Serum was assayed for 1-deoxySL and metabolomics analysis of 111 metabolites. We found a robust lowering of 1-deoxySL, which correlated in a near-linear fashion with increased serum L-serine levels. Metabolomics analysis showed a modest elevation in glycine and a marked reduction in the level of cytosine, whereas most of the other assayed metabolites did not change. There were no direct side effects from the treatment, but the patient developed a transitory toe ulceration during the course of the study. The Charcot-Marie-Tooth neuropathy score increased by 1 point. We conclude that oral supplementation of L-serine decreases 1-deoxySL in HSAN1C without major global effects on metabolism. L-serine is therefore a potential treatment for HSAN1C. PMID- 29042449 TI - Peptide YY mediates the satiety effects of diets enriched with whey protein fractions in male rats. AB - Dairy proteins-whey protein, in particular-are satiating and often recommended for weight control; however, little is known about the mechanisms by which whey protein and its components promote satiety and weight loss. We used diet-induced obese rats to determine whether the hypophagic effects of diets that are enriched with whey and its fractions, lactalbumin and lactoferrin, are mediated by the gut hormone, peptide YY (PYY). We demonstrate that high protein diets that contain whey, lactalbumin, and lactoferrin decreased food intake and body weight with a concurrent increase in PYY mRNA abundance in the colon and/or plasma PYY concentrations. Of importance, blockade of PYY neuropeptide Y receptor subtype 2 (Y2) receptors with a peripherally restricted antagonist attenuated the hypophagic effects of diets that are enriched with whey protein fractions. Diets that are enriched with whey fractions were less preferred; however, in a modified conditioned taste preference test, PYY Y2 receptor blockade induced hyperphagia of a lactoferrin diet, but caused a reduction in preference for Y2 antagonist paired flavor, which suggested that PYY signaling is important for lactoferrin induced satiety, but not essential for preference for lactoferrin-enriched diets. Taken together, these data provide evidence that the satiety of diets that are enriched with whey protein components is mediated, in part, via enhanced PYY secretion and action in obese male rats.-Zapata, R. C., Singh, A., Chelikani, P. K. Peptide YY mediates the satiety effects of diets enriched with whey protein fractions in male rats. PMID- 29042448 TI - Myo-inositol effects in women with PCOS: a meta-analysis of randomized controlled trials. AB - Myo-inositol (MI) supplementation in women with polycystic ovary syndrome (PCOS) has been evaluated over the last years. Many hormonal and reproductive impairments associated with this disorder seem relieved by the supplement. The objective of the meta-analysis was to assess the effects of MI alone or combined with d-chiro-inositol (DCI) on the endocrine and metabolic abnormalities of women with PCOS. Literature was retrieved from selected databases, MEDLINE, EMBASE, PubMed and Research Gate (up to November 2016). Only randomized controlled trials (RCTs) investigating the effects of MI alone or combined with DCI were reviewed. Nine RCTs involving 247 cases and 249 controls were included. Significant decreases in fasting insulin (SMD = -1.021 uU/mL, 95% CI: -1.791 to -0.251, P = 0.009) and homeostasis model assessment (HOMA) index (SMD = -0.585, 95% CI: 1.145 to -0.025, P = 0.041) were identified after MI supplementation. The trial sequential analysis of insulin meta-analysis illustrates that the cumulative z curve crossed the monitoring boundary, providing firm evidence of the intervention effect. A slight trend toward a reduction of testosterone concentration by MI with respect to controls was found (SMD = -0.49, 95% CI: 1.072 to 0.092, P = 0.099), whereas androstenedione levels remained unaffected. Throughout a subgroup's meta-analysis, a significant increase in serum SHBG was observed only in those studies where MI was administered for at least 24 weeks (SMD = 0.425 nmol/L, 95% CI: 0.050-0.801, P = 0.026). These results highlight the beneficial effect of MI in improving the metabolic profile of women with PCOS, concomitantly reducing their hyperandrogenism. PMID- 29042450 TI - Zinc finger protein 365 is a new maternal LPS-binding protein that defends zebrafish embryos against gram-negative bacterial infections. AB - Zinc finger protein 365 (ZNF365) is widespread in animals, but its function and mechanism remains poorly defined. Here we clearly demonstrate that zebrafish ZNF365 is a newly identified LPS-binding protein capable of interacting with the gram-negative bacteria Escherichia coli, Vibrio anguillarum, and Aeromonas hydrophila, and functions as an antibacterial effector molecule capable of directly killing the bacteria. We also reveal that N-terminal residues 30-55 consisting of the ZnF_C2H2 domain are indispensable for ZNF365 antimicrobial activity. Importantly, microinjection of recombinant ZNF365 into early embryos significantly enhanced the resistance of the embryos against pathogenic A. hydrophila challenge, whereas down-regulation of ZNF365 by injection of znf365 morpholino into embryos considerably lowered their resistance against A. hydrophila challenge. Furthermore, the N-terminal peptide Z30-55 with in vitro antibacterial activity also promoted the resistance of embryos against A. hydrophila, but the peptide Z56-345 without in vitro antibacterial activity did not. Collectively, these results indicate that ZNF365 is a maternal LPS-binding protein that can protect the early embryos of zebrafish against pathogenic attacks, a novel role to be assigned to ZNF365 proteins. This work also provides new insights into the immunologic function of the zinc finger proteins that are widely distributed in various animals.-Du, X., Zhou, Y., Song, L., Wang, X., Zhang, S. Zinc finger protein 365 is a new maternal LPS-binding protein that defends zebrafish embryos against gram-negative bacterial infections. PMID- 29042452 TI - Export of membrane proteins from the Golgi complex to the primary cilium requires the kinesin motor, KIFC1. AB - Microtubule-based motors contribute to the efficiency and selectivity of Golgi exit and post-Golgi transport of membrane proteins that are targeted to distinct compartments. Cytoplasmic dynein moves post-Golgi vesicles that carry rhodopsin toward the base of the connecting cilium in photoreceptor cells; however, the identity of the motors that are involved in the vesicular trafficking of ciliary membrane proteins in nonphotoreceptor cells remains unclear. Here, we demonstrate that the minus end-directed kinesin KIFC1 (kinesin family member C1) is required for both ciliary membrane protein transport and serum starvation-induced ciliogenesis in retinal pigmented epithelial 1 cells. Although KIFC1 is known as a mitotic motor that is sequestered in the nucleus during interphase, KIFC1 immunoreactivity appeared in the Golgi region after serum starvation. Knockdown of KIFC1 inhibited the export of ciliary receptors from the Golgi complex. KIFC1 overexpression affected the Golgi localization of GMAP210 (Golgi microtubule associated protein 210) and IFT20 (intraflagellar transport 20), which are involved in membrane protein transport to cilia. Moreover, KIFC1 physically interacted with ASAP1 (ADP-ribosylation factor GTPase-activating protein with SH3 domain, ankyrin repeat and PH domain 1), which regulates the budding of rhodopsin transport carriers from the Golgi complex, and KIFC1 depletion caused Golgi accumulation of ASAP1. A decrease in the centrosomal levels of IFT20 and TTBK2 (tau-tubulin kinase 2) was associated with ciliogenesis defects in KIFC1-depleted cells. Our results suggest that KIFC1 plays roles in the Golgi exit of ciliary receptors and in the recruitment of ciliogenesis regulators.-Lee, S.-H., Joo, K., Jung, E. J., Hong, H., Seo, J., Kim, J. Export of membrane proteins from the Golgi complex to the primary cilium requires the kinesin motor, KIFC1. PMID- 29042451 TI - Biased signaling of the proton-sensing receptor OGR1 by benzodiazepines. AB - GPCRs have diverse signaling capabilities, based on their ability to assume various conformations. Moreover, it is now appreciated that certain ligands can promote distinct receptor conformations and thereby bias signaling toward a specific pathway to differentially affect cell function. The recently deorphanized G protein-coupled receptor OGR1 [ovarian cancer G protein-coupled receptor 1 ( GPR68)] exhibits diverse signaling events when stimulated by reductions in extracellular pH. We recently demonstrated airway smooth muscle cells transduce multiple signaling events, reflecting a diverse capacity to couple to multiple G proteins. Moreover, we recently discovered that the benzodiazepine lorazepam, more commonly recognized as an agonist of the gamma aminobutyric acid A (GABAA) receptor, can function as an allosteric modulator of OGR1 and, similarly, can promote multiple signaling events. In this study, we demonstrated that different benzodiazepines exhibit a range of biases for OGR1, with sulazepam selectively activating the canonical Gs of the G protein signaling pathway, in heterologous expression systems, as well as in several primary cell types. These findings highlight the potential power of biased ligand pharmacology for manipulating receptor signaling qualitatively, to preferentially activate pathways that are therapeutically beneficial.-Pera, T., Deshpande, D. A., Ippolito, M., Wang, B., Gavrila, A., Michael, J. V., Nayak, A. P., Tompkins, E., Farrell, E., Kroeze, W. K., Roth, B. L., Panettieri, R. A. Jr Benovic, J. L., An, S. S., Dulin, N. O., Penn, R. B. Biased signaling of the proton-sensing receptor OGR1 by benzodiazepines. PMID- 29042453 TI - Bisphenol A promotes hyperuricemia via activating xanthine oxidase. AB - The prevalence of hyperuricemia has increased rapidly over the past decades. Bisphenol A (BPA) is an environmental endocrine disruptor. We investigated the effects of BPA on uric acid metabolism and its potential mechanisms. Experiments were performed in different animal models, cell cultures, and humans. In 3 different animal models, BPA exposure increased serum and hepatic uric acid with enhanced activity of xanthine oxidase (XO) in liver, whereas the excretion of uric acid was unchanged. Both in vivo and in vitro, BPA-induced uric acid production was decreased after treatment with allopurinol, which is a XO inhibitor. XO led to the accumulation of uric acid after xanthine was added, with the enzyme-catalyzed reaction, which was enhanced by BPA. Altered secondary structures of XO were found by circular dichroism analysis in the conditions of different BPA concentrations. Molecular docking portrayed Asp360 and Lys422 of XO to be the preferred binding sites for BPA. Mutation of both sites significantly blocked the effect of BPA on XO activity. In humans, patients with hyperuricemia exhibited higher levels of serum BPA than subjects without hyperuricemia. These findings demonstrate BPA promotes hyperuricemia by increasing hepatic uric acid synthesis via the activation of XO, probably through direct binding.-Ma, L., Hu, J., Li, J., Yang, Y., Zhang, L., Zou, L., Gao, R., Peng, C., Wang, Y., Luo, T., Xiang, X., Qing, H., Xiao, X., Wu, C., Wang, Z., He, J. C., Li, Q., Yang, S. Bisphenol A promotes hyperuricemia via activating xanthine oxidase. PMID- 29042454 TI - Complement-Activating Anti-HLA Antibodies in Kidney Transplantation: Allograft Gene Expression Profiling and Response to Treatment. AB - Complement-activating anti-HLA donor-specific antibodies (DSAs) are associated with impaired kidney transplant outcome; however, whether these antibodies induce a specific rejection phenotype and influence response to therapy remains undetermined. We prospectively screened 931 kidney recipients for complement activating DSAs and used histopathology, immunostaining, and allograft gene expression to assess rejection phenotypes. Effector cells were evaluated using in vitro human cell cultures. Additionally, we assessed the effect of complement inhibition on kidney allograft rejection phenotype and the clinical response to complement inhibition in 116 independent kidney recipients with DSAs at transplant receiving rejection prophylaxis with eculizumab or standard of care (plasma exchange and intravenous Ig) at ten international centers. The histomolecular rejection phenotype associated with complement-activating DSA was characterized by complement deposition and accumulation of natural killer cells and monocytes/macrophages in capillaries and increased expression of five biologically relevant genes (CXCL11, CCL4, MS4A7, MS4A6A, and FCGR3A) indicative of endothelial activation, IFNgamma response, CD16-mediated natural killer cell activation, and monocyte/macrophage activation. Compared with standard of care, eculizumab specifically abrogated this histomolecular rejection phenotype and associated with a decreased 3-month rejection incidence rate in patients with complement-activating DSAs (56%; 95% confidence interval [95% CI], 38% to 74% versus 19%; 95% CI, 8% to 35%; P=0.001) but not in those with noncomplement activating DSAs (9%; 95% CI, 2% to 25% versus 13%; 95% CI, 2% to 40%; P=0.65). In conclusion, circulating complement-activating anti-HLA DSAs are associated with a specific histomolecular kidney allograft rejection phenotype that can be abrogated by complement inhibition. PMID- 29042455 TI - MicroRNA-709 Mediates Acute Tubular Injury through Effects on Mitochondrial Function. AB - Mitochondrial dysfunction has important roles in the pathogenesis of AKI, yet therapeutic approaches to improve mitochondrial function remain limited. In this study, we investigated the pathogenic role of microRNA-709 (miR-709) in mediating mitochondrial impairment and tubular cell death in AKI. In a cisplatin-induced AKI mouse model and in biopsy samples of human AKI kidney tissue, miR-709 was significantly upregulated in the proximal tubular cells (PTCs). The expression of miR-709 in the renal PTCs of patients with AKI correlated with the severity of kidney injury. In cultured mouse PTCs, overexpression of miR-709 markedly induced mitochondrial dysfunction and cell apoptosis, and inhibition of miR-709 ameliorated cisplatin-induced mitochondrial dysfunction and cell injury. Further analyses showed that mitochondrial transcriptional factor A (TFAM) is a target gene of miR-709, and genetic restoration of TFAM attenuated mitochondrial dysfunction and cell injury induced by cisplatin or miR-709 overexpression in vitro Moreover, antagonizing miR-709 with an miR-709 antagomir dramatically attenuated cisplatin-induced kidney injury and mitochondrial dysfunction in mice. Collectively, our results suggest that miR-709 has an important role in mediating cisplatin-induced AKI via negative regulation of TFAM and subsequent mitochondrial dysfunction. These findings reveal a pathogenic role of miR-709 in acute tubular injury and suggest a novel target for the treatment of AKI. PMID- 29042456 TI - Effects of Two Immunosuppressive Treatment Protocols for IgA Nephropathy. AB - The role of immunosuppression in IgA nephropathy (IgAN) is controversial. In the Supportive Versus Immunosuppressive Therapy for the Treatment of Progressive IgA Nephropathy (STOP-IgAN) Trial, 162 patients with IgAN and proteinuria >0.75 g/d after 6 months of optimized supportive care were randomized into two groups: continued supportive care or additional immunosuppression (GFR>=60 ml/min per 1.73 m2: 6-month corticosteroid monotherapy; GFR=30-59 ml/min per 1.73 m2: cyclophosphamide for 3 months followed by azathioprine plus oral prednisolone). Coprimary end points were full clinical remission and GFR loss >=15 ml/min per 1.73 m2 during the 3-year trial phase. In this secondary intention to treat analysis, we separately analyzed data from each immunosuppression subgroup and the corresponding patients on supportive care. Full clinical remission occurred in 11 (20%) patients receiving corticosteroid monotherapy and three (6%) patients on supportive care (odds ratio, 5.31; 95% confidence interval, 1.07 to 26.36; P=0.02), but the rate did not differ between patients receiving immunosuppressive combination and controls on supportive care (11% versus 4%, respectively; P=0.30). The end point of GFR loss >=15 ml/min per 1.73 m2 did not differ between groups. Only corticosteroid monotherapy transiently reduced proteinuria at 12 months. Severe infections, impaired glucose tolerance, and/or weight gain in the first year were more frequent with either immunosuppressive regimen than with supportive care. In conclusion, only corticosteroid monotherapy induced disease remission in a minority of patients who had IgAN with relatively well preserved GFR and persistent proteinuria. Neither immunosuppressive regimen prevented GFR loss, and both associated with substantial adverse events. PMID- 29042457 TI - Neutralizing Antibody-Mediated Response and Risk of BK Virus-Associated Nephropathy. AB - BK virus-associated nephropathy (BKVAN) causes renal allograft dysfunction. The current management of BKVAN relies on pre-emptive adaptation of immunosuppression according to viral load monitoring. However, this empiric strategy is not always successful. Therefore, pretransplant predictive markers are needed. In a prospective longitudinal study, we enrolled 168 kidney transplant recipients and 69 matched donors. To assess the value of BKV genotype-specific neutralizing antibody (NAb) titers as a predictive marker for BKV replication, we measured BKV DNA load and NAb titers at transplant and followed patients for 24 months. After transplant, 52 (31%) patients displayed BKV replication: 24 (46%) patients were viruric and 28 (54%) patients were viremic, including 13 with biopsy-confirmed BKVAN. At any time, patients with high NAb titers against the replicating strain had a lower risk of developing BKV viremia (hazard ratio [HR], 0.44; 95% confidence interval [95% CI], 0.26 to 0.73; P=0.002). Each log10 increase in NAb titer decreased the risk of developing viremia by 56%. Replicating strains were consistent with donor transmission in 95% of cases of early BKV replication. Genotype mismatch between recipients' neutralization profiles before transplant and their subsequently replicating strain significantly increased the risk of developing viremia (HR, 2.27; 95% CI, 1.06 to 4.88; P=0.04). A NAb titer against the donor's strain <4 log10 before transplant significantly associated with BKV replication after transplant (HR, 1.88; 95% CI, 1.06 to 3.45; P=0.03). BKV genotype-specific NAb titers may be a meaningful predictive marker that allows patient stratification by BKV disease risk before and after transplant. PMID- 29042458 TI - Exenatide modulates tumor-endothelial cell interactions in human ovarian cancer cells. AB - Diabetes and cancer are prevalent diseases whose incidence is increasing globally. Diabetic women have a moderate risk increase in ovarian cancer, suggested to be due to an interaction between these two disorders. Furthermore, patients manifesting both diseases have associated worse prognosis, reduced survival and shorter relapse-free survival. According to current recommendations, incretin drugs such as Exenatide, a synthetic analog of Exendin-4, and Liraglutide are used as therapy for the type 2 diabetes (T2D). We studied the effects of GLP-1 and Exendin-4 on migration, apoptosis and metalloproteinase production in two human ovarian cancer cells (SKOV-3 and CAOV-3). Exendin-4 inhibited migration and promoted apoptosis through caspase 3/7 activation. Exendin-4 also modulated the expression of key metalloproteinases (MMP-2 and MMP 9) and their inhibitors (TIMP-1 and TIMP-2). Vascular endothelial cells, which contribute to the formation and progression of metastasis, were also analyzed. TNF-alpha-stimulated endothelial cells from iliac artery after Exendin-4 treatment showed reduced production of adhesion molecules (ICAM-1 and VCAM-1). Additionally, incretin treatment inhibited activation of apoptosis in TNF-alpha stimulated endothelial cells. In the same experiment, MMPs (MMP-1 and MMP-9), which are relevant for tumor development, were also reduced. Our study demonstrated that incretin drugs may reduce cancer cell proliferation and dissemination potential, hence limiting the risk of metastasis in epithelial ovarian cancer. PMID- 29042460 TI - Storage Compartments for Capillary Water Rarely Refill in an Intact Woody Plant. AB - Water storage is thought to play an integral role in the maintenance of whole plant water balance. The contribution of both living and dead cells to water storage can be derived from rehydration and water-release curves on excised plant material, but the underlying tissue-specific emptying/refilling dynamics remain unclear. Here, we used x-ray computed microtomography to characterize the refilling of xylem fibers, pith cells, and vessels under both excised and in vivo conditions in Laurus nobilis In excised stems supplied with water, water uptake exhibited a biphasic response curve, and x-ray computed microtomography images showed that high water storage capacitance was associated with fiber and pith refilling as driven by capillary forces: fibers refilled more rapidly than pith cells, while vessel refilling was minimal. In excised stems that were sealed, fiber and pith refilling was associated with vessel emptying, indicating a link between tissue connectivity and water storage. In contrast, refilling of fibers, pith cells, and vessels was negligible in intact saplings over two time scales, 24 h and 3 weeks. However, those compartments did refill slowly when the shoot was covered to prevent transpiration. Collectively, our data (1) provide direct evidence that storage compartments for capillary water refill in excised stems but rarely under in vivo conditions, (2) highlight that estimates of capacitance from excised samples should be interpreted with caution, as certain storage compartments may not be utilized in the intact plant, and (3) question the paradigm that fibers play a substantial role in daily discharge/recharge of stem capacitance in an intact tree. PMID- 29042461 TI - How do we improve training in pulmonary physiology and the interpretation of lung function tests? PMID- 29042459 TI - Environmental and Genetic Factors Regulating Localization of the Plant Plasma Membrane H+-ATPase. AB - A P-type H+-ATPase is the primary transporter that converts ATP to electrochemical energy at the plasma membrane of higher plants. Its product, the proton-motive force, is composed of an electrical potential and a pH gradient. Many studies have demonstrated that this proton-motive force not only drives the secondary transporters required for nutrient uptake, but also plays a direct role in regulating cell expansion. Here, we have generated a transgenic Arabidopsis (Arabidopsis thaliana) plant expressing H+-ATPase isoform 2 (AHA2) that is translationally fused with a fluorescent protein and examined its cellular localization by live-cell microscopy. Using a 3D imaging approach with seedlings grown for various times under a variety of light intensities, we demonstrate that AHA2 localization at the plasma membrane of root cells requires light. In dim light conditions, AHA2 is found in intracellular compartments, in addition to the plasma membrane. This localization profile was age-dependent and specific to cell types found in the transition zone located between the meristem and elongation zones. The accumulation of AHA2 in intracellular compartments is consistent with reduced H+ secretion near the transition zone and the suppression of root growth. By examining AHA2 localization in a knockout mutant of a receptor protein kinase, FERONIA, we found that the intracellular accumulation of AHA2 in the transition zone is dependent on a functional FERONIA-dependent inhibitory response in root elongation. Overall, this study provides a molecular underpinning for understanding the genetic, environmental, and developmental factors influencing root growth via localization of the plasma membrane H+-ATPase. PMID- 29042463 TI - Need to Reclassify Etiologies of ESRD on the CMS 2728 Medical Evidence Report. PMID- 29042462 TI - Infrequent Provision of Palliative Care to Patients with Dialysis-Requiring AKI. AB - BACKGROUND AND OBJECTIVES: The use of palliative care in AKI is not well described. We sought to better understand palliative care practice patterns for hospitalized patients with AKI requiring dialysis in the United States. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Using the 2012 National Inpatient Sample, we identified patients with AKI and palliative care encounters using validated International Classification of Diseases, Ninth Revision, Clinical Modification codes. We compared palliative care encounters in patients with AKI requiring dialysis, patients with AKI not requiring dialysis, and patients without AKI. We described the provision of palliative care in patients with AKI requiring dialysis and compared the frequency of palliative care encounters for patients with AKI requiring dialysis with that for patients with other illnesses with similarly poor prognoses. We used logistic regression to determine factors associated with the provision of palliative care, adjusting for demographics, hospital-level variables, and patient comorbidities. RESULTS: We identified 3,031,036 patients with AKI, of whom 91,850 (3%) received dialysis. We observed significant patient- and hospital-level differences in the provision of palliative care for patients with AKI requiring dialysis; adjusted odds were 26% (95% confidence interval, 12% to 38%) lower in blacks and 23% (95% confidence interval, 3% to 39%) lower in Hispanics relative to whites. Lower provision of palliative care was observed for rural and urban nonteaching hospitals relative to urban teaching hospitals, small and medium hospitals relative to large hospitals, and hospitals in the Northeast compared with the South. After adjusting for age and sex, there was low utilization of palliative care services for patients with AKI requiring dialysis (8%)-comparable with rates of utilization by patients with other illnesses with poor prognosis, including cardiogenic shock (9%), intracranial hemorrhage (10%), and acute respiratory distress syndrome (10%). CONCLUSIONS: The provision of palliative care varied widely by patient and facility characteristics. Palliative care was infrequently used in hospitalized patients with AKI requiring dialysis, despite its poor prognosis and the regular application of life-sustaining therapy. PMID- 29042464 TI - Recognizing the Elephant in the Room: Palliative Care Needs in Acute Kidney Injury. PMID- 29042466 TI - Survey of Radioactive Items in the Home. AB - Whether it be from the sun or naturally encountered substances, we are exposed to radiation every day. Some items found in the home either are naturally radioactive or have a component containing radioactive material. This study was conducted to assess exposure from 4 such items previously shown to be radioactive: Fiestaware, granite, smoke detectors, and Brazil nuts. Using 3 types of radiation detectors to obtain quantitative and qualitative information on the radioactive properties of these items, we found little to no harmful radiation exposure from any of them. PMID- 29042465 TI - Thrombotic Microangiopathy and the Kidney. AB - Thrombotic microangiopathy can manifest in a diverse range of diseases and is characterized by thrombocytopenia, microangiopathic hemolytic anemia, and organ injury, including AKI. It can be associated with significant morbidity and mortality, but a systematic approach to investigation and prompt initiation of supportive management and, in some cases, effective specific treatment can result in good outcomes. This review considers the classification, pathology, epidemiology, characteristics, and pathogenesis of the thrombotic microangiopathies, and outlines a pragmatic approach to diagnosis and management. PMID- 29042467 TI - Variability in Heart-to-Mediastinum Ratio from Planar 123I-MIBG Images of a Thorax Phantom for 6 Common gamma-Camera Models. AB - A heart-to-mediastinum (H/M) ratio of 1.6 or greater on planar 123I-iobenguane (123I-MIBG) images identifies heart failure patients at low risk of experiencing an adverse cardiac event. This phase-4 study used standardized phantoms to assess the intercamera, intracamera, and interhead variability in H/M ratio determinations from planar cardiac 123I-MIBG imaging using commercially available, dual-head gamma-cameras. Methods: A fillable thorax phantom was developed to simulate the typical uptake of 123I-MIBG. The phantom had a nominal H/M ratio of 1.6 on the reference camera. Commercial cameras used in the study were dual-head and capable of 90 degrees configuration for cardiac imaging. The target sample size was 8 units (examples) per camera model. Two imaging technologists independently analyzed planar images of simulated 123I-MIBG uptake from the thorax phantom. H/M was the ratio of the average counts per pixel of the heart and mediastinum regions of interest. The primary endpoint, intercamera variability in H/M ratio from head 1, was determined for each camera model via comparison with the H/M ratio on the reference camera. Only cameras with at least 8 units tested (n >= 8) were included in the primary analysis. Intracamera and interhead variability in the H/M ratio were also evaluated. Results: Nine camera models were studied. The mean H/M ratio ranged from 1.342 to 1.677. The primary analysis (6 camera models) using a mixed-model, repeated-measures analysis showed no significant difference in H/M ratio between any camera model and the reference camera. Intracamera variability (head 1) in the H/M ratio among camera models with 8 units or more was high, with SDs ranging from 0.0455 to 0.1193. Interhead variability was low (SDs of the interhead difference, 0.017-0.074). Conclusion: Commonly used gamma-cameras produced H/M ratios from simulated 123I-MIBG phantom images that were not significantly different from those on the reference camera. This finding indicates that the results of previous clinical trials of 123I-MIBG, involving many different clinical sites and camera models, are valid. The assessment of the performance of a given camera unit using an 123I planar phantom before H/M results from 123I-MIBG imaging are used for classifying risk in heart failure patients is encouraged. PMID- 29042468 TI - Comparison of Step-and-Shoot and Continuous-Bed-Motion PET Modes of Acquisition for Limited-View Organ Scans. AB - Continuous-bed-motion (CBM) acquisition mode has been made commercially available in PET/CT scanners. CBM mode is designed for whole-body imaging, with a long scan length (multiple axial fields of view [aFOVs]) and short acquisition duration (2 3 min/aFOV). PET/CT has recently been used after 90Y-microsphere therapy to quantify 90Y activity distribution in the liver. Here we compared counting efficiencies along the bed-motion direction (z-axis) between CBM and step-and shoot (SS) acquisition modes for limited-view organ scans, such as 90Y PET/CT liver studies, that have short scan lengths (<=2 aFOVs) and long acquisition durations (10-30 min/aFOV). Methods: The counting efficiencies, that is, analytic sensitivities, in SS mode (single-aFOV and multiple-aFOV scans) and CBM mode were theoretically derived and experimentally validated using a cylindric 68Ge phantom. The sensitivities along the z-axis were compared between the SS and CBM modes. Results: The analytic and experimental count profiles were in good agreement, validating the analytic models. For fixed scan durations, the overall coincidence counting efficiency in CBM mode was lower (~60%) than those in SS modes, and the maximum sensitivity in CBM mode was 50% or less of that in 1-aFOV SS mode and 100% or less of that in 2-aFOV SS mode. Conclusion: The ability of CBM mode to tailor-fit the PET/CT scan length and local scan duration is not realized in studies with a short scan length (<=30 cm) and long scan duration (20 min/aFOV for the scanner). SS acquisition mode is preferable to CBM mode for limited-view organ and count-starved scans, such as 90Y PET/CT liver scans, because of the higher counting efficiency of SS mode, which leads to better image quality and quantification precision. PMID- 29042469 TI - The Importance of Quality Control for Clinical PET Imaging. PMID- 29042470 TI - Comparison Between Prone and Upright Imaging of the Inferior Wall Using 201TlCl Myocardial Perfusion SPECT. AB - Because it suppresses attenuation artifacts from the diaphragm, prone SPECT is suitable for evaluating the cardiac inferior wall. A solid-state dedicated cardiac camera allows upright imaging, which can also be used to avoid attenuation artifacts from the diaphragm. We compared prone and upright imaging for inferior wall evaluation using 201TlCl myocardial perfusion SPECT (MPS). Methods: The study targeted 45 patients. The prone imaging group included 23 subjects who underwent additional prone imaging because supine imaging indicated that the inferior wall had reduced uptake. The upright imaging group included 22 subjects who, in the past, had shown reduced uptake in the inferior wall during supine imaging. Using the MPS stress images and analysis software, we created a polar map showing the incorporation of the radioisotope throughout the whole of the myocardium; this polar map was then classified into 17 segments. The percentage uptake ratios of the inferior/anterior wall were calculated for the prone and upright acquisitions. These ratios were used as the ratio of percentage uptake in each segment of the anterior wall to percentage uptake in each segment of the inferior wall. In addition, 6 reviewers visually evaluated the uniformity within the inferior wall for both the prone and the upright imaging. Results: There was a significant difference in percentage uptake ratios between the prone and upright images in segments 4/1 (basal inferior/basal anterior; P < 0.05), 11/12 (mid inferolateral/mid anterolateral; P < 0.001), and 15/13 (apical inferior/apical anterior; P < 0.05). There were no significant differences between the prone and upright images in visual evaluations of uniformity within the inferior wall. Conclusion: In comparison with upright imaging, prone imaging has a higher rate of suppression of attenuation artifacts from the diaphragm. However, this difference does not seem to affect the images visually. Therefore, upright and prone imaging can be used interchangeably to evaluate the inferior wall. PMID- 29042471 TI - Adapting a Standardized, Industry-Proven Tool to Measure Patients' Perceptions of Quality at the Point of Care in a PET/CT Center. AB - Patient satisfaction with health-care delivery is essential today. Using a psychometrically validated questionnaire-SERVPERF-we quantitatively measured patients' perceptions of the quality of service at the point of care in a PET/CT center, and we used this information to guide subsequent quality improvement interventions. SERVPERF is a survey instrument that measures performance for various services. It has demonstrated reliability and validity across various industries. The standard for measuring patient perception of quality in hospitals the "Hospital Consumer Assessment of Health Care Providers and Systems" survey does not include questions about the care received in a typical radiology department and is not performed at the point of care. Methods: 429 patients undergoing PET/CT examinations filled out an anonymous modified SERVPERF questionnaire on completion of imaging and reported their level of agreement with each of the 27 items by circling a Likert-type scale from 1 to 7. Each item was designed to elicit a response on the patient's perception of performance on a metric of quality. Data were summarized as the mean of each item. The frequency of low scores (<=3) was also calculated. Results: The items with the lowest mean score were "The department's physical facilities are visually appealing" (6.158) and "Documentation such as sign-in sheet, handouts, and brochures are visually appealing" (6.162). The item with the highest frequency of low scores (<=3) was, "The department provides services at the promised time" (11/429 responses). Conclusion: Our study showed that patient perception of quality in a diagnostic radiology department can be measured with a standardized survey at the point of care delivery and used to direct patient-centered quality improvement interventions. PMID- 29042472 TI - Technical Advances in Image Guidance of Radionuclide Therapy. AB - Internal radiation therapy with radionuclides (i.e., radionuclide therapy) owes its success to the many advantages over other, more conventional, treatment options. One distinct advantage of radionuclide therapies is the potential to use (part of) the emitted radiation for imaging of the radionuclide distribution. The combination of diagnostic and therapeutic properties in a set of matched radiopharmaceuticals (sometimes combined in a single radiopharmaceutical) is often referred to as theranostics and allows accurate diagnostic imaging before therapy. The use of imaging benefits treatment planning, dosimetry, and assessment of treatment response. This paper focuses on a selection of advances in imaging technology relevant for image guidance of radionuclide therapy. This involves developments in nuclear imaging modalities, as well as other anatomic and functional imaging modalities. The quality and quantitative accuracy of images used for guidance of radionuclide therapy is continuously being improved, which in turn may improve the therapeutic outcome and efficiency of radionuclide therapies. PMID- 29042473 TI - Pharmacologic Stress Testing with MyocardialPerfusion Imaging. AB - The preferred method for performing stress testing with myocardial perfusion imaging is physical exercise. However, many patients are unable to reach an adequate endpoint. As an alternative, various pharmacologic options are available, which are explored in this article. PMID- 29042474 TI - Development of a PET/CT and PET/MRI patient information films in collaboration with patient representatives previously treated for cancer. AB - Introduction: PET/MRI and PET CT scanning carries an increased psychological burden for patients which may be improved by effective preparation prior to attendance for the procedure. We aimed to devise an online resource for patient benefit prior to PET/MRI and PET/CT scanning. Methods: With the help of patient representatives' the style and content for two patient information films was reviewed at each stage of the process to explain the patient journey. Results: Two patient information films were produced for patients undergoing PET scanning, Positive feedback from healthcare providers and users was obtained. Conclusion: Involvement of patient representatives in the production of an information resource has had a positive impact on the finished product, with potential for increased benefit to patients as a result. PMID- 29042475 TI - Mitotic bookmarking in development and stem cells. AB - The changes imposed on the nucleus, chromatin and its regulators during mitosis lead to the dismantlement of most gene regulatory processes. However, an increasing number of transcriptional regulators are being identified as capable of binding their genomic targets during mitosis. These so-called 'mitotic bookmarking factors' encompass transcription factors and chromatin modifiers that are believed to convey gene regulatory information from mother to daughter cells. In this Primer, we review mitotic bookmarking processes in development and stem cells and discuss the interest and potential importance of this concept with regard to epigenetic regulation and cell fate transitions involving cellular proliferation. PMID- 29042476 TI - The three-dimensional genome: regulating gene expression during pluripotency and development. AB - The precise expression of genes in time and space during embryogenesis is largely influenced by communication between enhancers and promoters, which is propagated and governed by the physical proximity of these elements in the nucleus. Here, we review how chromatin domains organize the genome by guiding enhancers to their target genes thereby preventing non-specific interactions with other neighboring regions. We also discuss the dynamics of chromatin interactions between enhancers and promoters, as well as the consequent changes in gene expression, that occur in pluripotent cells and during development. Finally, we evaluate how genomic changes such as deletions, inversions and duplications affect 3D chromatin configuration overall and lead to ectopic enhancer-promoter contacts, and thus gene misexpression, which can contribute to abnormal development and disease. PMID- 29042477 TI - KDM3A-mediated demethylation of histone H3 lysine 9 facilitates the chromatin binding of Neurog2 during neurogenesis. AB - Neurog2 is a crucial regulator of neuronal fate specification and differentiation in vivo and in vitro However, it remains unclear how Neurog2 transactivates neuronal genes that are silenced by repressive chromatin. Here, we provide evidence that the histone H3 lysine 9 demethylase KDM3A facilitates the Xenopus Neurog2 (formerly known as Xngnr1) chromatin accessibility during neuronal transcription. Loss-of-function analyses reveal that KDM3A is not required for the transition of naive ectoderm to neural progenitor cells but is essential for primary neuron formation. ChIP series followed by qPCR analyses reveal that Neurog2 promotes the removal of the repressive H3K9me2 marks and addition of active histone marks, including H3K27ac and H3K4me3, at the NeuroD1 and Tubb2b promoters; this activity depends on the presence of KDM3A because Neurog2, via its C-terminal domain, interacts with KDM3A. Interestingly, KDM3A is dispensable for the neuronal transcription initiated by Ascl1, a proneural factor related to neurogenin in the bHLH family. In summary, our findings uncover a crucial role for histone H3K9 demethylation during Neurog2-mediated neuronal transcription and help in the understanding of the different activities of Neurog2 and Ascl1 in initiating neuronal development. PMID- 29042478 TI - Correction: SoxF factors induce Notch1 expression via direct transcriptional regulation during early arterial development. Development doi: 10.1242/dev.146241. PMID- 29042479 TI - Retraction: Eya1 controls cell polarity, spindle orientation, cell fate and Notch signaling in distal embryonic lung epithelium. Development doi: 10.1242/dev.058479. PMID- 29042480 TI - Prediction of Protein Complexes in Trypanosoma brucei by Protein Correlation Profiling Mass Spectrometry and Machine Learning. AB - A disproportionate number of predicted proteins from the genome sequence of the protozoan parasite Trypanosoma brucei, an important human and animal pathogen, are hypothetical proteins of unknown function. This paper describes a protein correlation profiling mass spectrometry approach, using two size exclusion and one ion exchange chromatography systems, to derive sets of predicted protein complexes in this organism by hierarchical clustering and machine learning methods. These hypothesis-generating proteomic data are provided in an open access online data visualization environment (http://134.36.66.166:8083/complex_explorer). The data can be searched conveniently via a user friendly, custom graphical interface. We provide examples of both potential new subunits of known protein complexes and of novel trypanosome complexes of suggested function, contributing to improving the functional annotation of the trypanosome proteome. Data are available via ProteomeXchange with identifier PXD005968. PMID- 29042482 TI - Resveratrol stimulates the metabolic reprogramming of human CD4+ T cells to enhance effector function. AB - The polyphenol resveratrol activates the deacetylase Sirt1, resulting in various antioxidant, chemoprotectant, neuroprotective, cardioprotective, and anti inflammatory properties. We found that at high concentrations of resveratrol, human CD4+ T cells showed defective antigen receptor signaling and arrest at the G1 stage of the cell cycle, whereas at low concentrations, cells were readily activated and exhibited enhanced Sirt1 deacetylase activity. Nevertheless, low dose resveratrol rapidly stimulated genotoxic stress in the T cells, which resulted in engagement of a DNA damage response pathway that depended on the kinase ATR [ataxia telangiectasia-mutated (ATM) and Rad3-related], but not ATM, and subsequently in premitotic cell cycle arrest. The concomitant activation of p53 was coupled to the expression of gene products that regulate cell metabolism, leading to a metabolic reprogramming that was characterized by decreased glycolysis, increased glutamine consumption, and a shift to oxidative phosphorylation. These alterations in the bioenergetic homeostasis of CD4+ T cells resulted in enhanced effector function, with both naive and memory CD4+ T cells secreting increased amounts of the inflammatory cytokine interferon-gamma. Thus, our data highlight the wide range of metabolic adaptations that CD4+ T lymphocytes undergo in response to genomic stress. PMID- 29042481 TI - The matricellular protein TSP1 promotes human and mouse endothelial cell senescence through CD47 and Nox1. AB - Senescent cells withdraw from the cell cycle and do not proliferate. The prevalence of senescent compared to normally functioning parenchymal cells increases with age, impairing tissue and organ homeostasis. A contentious principle governing this process has been the redox theory of aging. We linked matricellular protein thrombospondin 1 (TSP1) and its receptor CD47 to the activation of NADPH oxidase 1 (Nox1), but not of the other closely related Nox isoforms, and associated oxidative stress, and to senescence in human cells and aged tissue. In human endothelial cells, TSP1 promoted senescence and attenuated cell cycle progression and proliferation. At the molecular level, TSP1 increased Nox1-dependent generation of reactive oxygen species (ROS), leading to the increased abundance of the transcription factor p53. p53 mediated a DNA damage response that led to senescence through Rb and p21cip, both of which inhibit cell cycle progression. Nox1 inhibition blocked the ability of TSP1 to increase p53 nuclear localization and p21cip abundance and its ability to promote senescence. Mice lacking TSP1 showed decreases in ROS production, p21cip expression, p53 activity, and aging-induced senescence. Conversely, lung tissue from aging humans displayed increases in the abundance of vascular TSP1, Nox1, p53, and p21cip Finally, genetic ablation or pharmacological blockade of Nox1 in human endothelial cells attenuated TSP1-mediated ROS generation, restored cell cycle progression, and protected against senescence. Together, our results provide insights into the functional interplay between TSP1 and Nox1 in the regulation of endothelial senescence and suggest potential targets for controlling the aging process at the molecular level. PMID- 29042484 TI - Accuracy of Oxygen Flow Delivered by Compressed-Gas Cylinders in Hospital and Prehospital Emergency Care. AB - BACKGROUND: Oxygen cylinders are widely used both in hospital and prehospital care. Excessive or inappropriate FIO2 may be critical for patients with hypercapnia or hypoxia. Moreover, over-oxygenation could be deleterious in ischemic disorders. Supplemental oxygen from oxygen cylinder should therefore be delivered accurately. The aim of this study was to assess the accuracy of oxygen flows for oxygen cylinder in hospital and prehospital care. METHODS: A prospective trial was conducted to evaluate accuracy of delivered oxygen flows (2, 4, 6, 9 and 12 L/min) for different oxygen cylinder ready for use in different hospital departments. Delivered flows were analyzed randomly using a calibrated thermal mass flow meter. Two types of oxygen cylinder were evaluated: 78 oxygen cylinder with a single-stage regulator and 70 oxygen cylinder with a dual-stage regulator. Delivered flows were compared to the required oxygen flow. The residual pressure value for each oxygen cylinder was considered. A coefficient of variation was calculated to compare the variability of the delivered flow between the two types of oxygen cylinder. RESULTS: The median values of delivered flows were all >= 100% of the required flow for single stage (range 100-109%) and < 100% of required flow for dual stage (range 95-97%). The median values of the delivered flow differed between single and dual stage. It was found that single stage is significantly higher than dual stage (P = .01). At low flow, the dispersion of the measures for single stage was higher than with a high oxygen flow. Delivered flow differences were also found between low and high residual pressures, but only with single stage (P = .02). The residual pressure for both oxygen cylinders (no. = 148) ranged from 73 to 2,900 pounds per square inch, and no significant difference was observed between the 2 types (P = .86). The calculated coefficient of variation ranged from 7% (+/-1%) for dual stage to 8% (+/-2%) for single stage. CONCLUSIONS: This study shows good accuracy of oxygen flow delivered via oxygen cylinders. This accuracy was higher with dual stage. Single stage was also accurate, however, at low flow this accuracy is slightly less. Moreover, with single stage, when residual pressure decreases, the median value of delivered flow decreased. PMID- 29042483 TI - Olfactory experience primes the heat shock transcription factor HSF-1 to enhance the expression of molecular chaperones in C. elegans. AB - Learning, a process by which animals modify their behavior as a result of experience, enables organisms to synthesize information from their surroundings to acquire resources and avoid danger. We showed that a previous encounter with only the odor of pathogenic bacteria prepared Caenorhabditis elegans to survive exposure to the pathogen by increasing the heat shock factor 1 (HSF-1)-dependent expression of genes encoding molecular chaperones. Experience-mediated enhancement of chaperone gene expression required serotonin, which primed HSF-1 to enhance the expression of molecular chaperone genes by promoting its localization to RNA polymerase II-enriched nuclear loci, even before transcription occurred. However, HSF-1-dependent chaperone gene expression was stimulated only if and when animals encountered the pathogen. Thus, learning equips C. elegans to better survive environmental dangers by preemptively and specifically initiating transcriptional mechanisms throughout the whole organism that prepare the animal to respond rapidly to proteotoxic agents. These studies provide one plausible basis for the protective role of environmental enrichment in disease. PMID- 29042485 TI - Maternal Stress During Pregnancy and Allergic Diseases in Children During the First Year of Life. AB - BACKGROUND: Many recent studies indicate that prenatal maternal distress increases the risk of allergic diseases in children. The mechanisms that favor it are still unclear. OBJECTIVES: We aimed to assess the association between exposure to different kinds of prenatal stress and the occurrence of atopic dermatitis, food allergy, wheezing, and recurrent respiratory tract infections in children. METHODS: The study population consisted of 370 mother-child pairs from a Polish Mother and Child Cohort (REPRO_PL). The analysis was restricted to the women who worked at least one month during the pregnancy period. Maternal psychological stress during pregnancy was assessed based on the Subjective Work Characteristics Questionnaire, the Perceived Stress Scale, and the Social Readjustment Rating Scale. The presence of atopic dermatitis, food allergy, wheezing, and recurrent respiratory tract infections in children was evaluated by doctors at 12 months of age. RESULTS: In a univariate model, we showed significant association between maternal life stress (according to the Perceived Stress Scale) and stressful life events (according to the Social Readjustment Rating Scale) and infant wheezing (at least 1 episode of wheezing during the first year of life). A multivariate model of logistic regression analysis revealed that maternal stress during pregnancy, described by the Social Readjustment Rating Scale, increased the risk of wheezing in children (OR 1.09, 95% CI 1.01-1.02) independently from other predictors of wheezing previously determined in this cohort, such as the number of infections and maternal smoking. We observed also significant positive association between maternal life stress during pregnancy measured by the Perceived Stress Scale and the risk of recurrent respiratory tract infections in the first year of life, however it was not significant after adjustment for confounding variables. CONCLUSIONS: Maternal stress during pregnancy increases the risk of childhood wheezing. The effects of stress during pregnancy on the onset of allergic diseases in children should be developed and translated into early prevention strategies. PMID- 29042486 TI - Parameters for Simulation of Adult Subjects During Mechanical Ventilation. AB - BACKGROUND: Simulation studies are often used to examine ventilator performance. However, there are no standards for selecting simulation parameters. This study collected data in passively-ventilated adult human subjects and summarized the results as a set of parameters that can be used for simulation studies of intubated, passive, adult subjects with normal lungs, COPD, or ARDS. METHODS: Consecutive adult patients admitted to the ICU were included if they were deeply sedated and mechanically ventilated for <48 h without any spontaneous breathing activity. Subjects were classified as having normal lungs, COPD, or ARDS. Respiratory mechanics variables were collected once per subject. Static compliance was calculated as the ratio between tidal volume and driving pressure. Inspiratory resistance was measured by the least-squares fitting method. The expiratory time constant was estimated by the tidal volume/flow ratio. RESULTS: Of the 359 subjects included, 138 were classified as having normal lungs, 181 as ARDS, and 40 as COPD. Median (interquartile range) static compliance was significantly lower in ARDS subjects as compared with normal lung and COPD subjects (39 [32-50] mL/cm H2O vs 54 [44-64] and 59 [43-75] mL/cm H2O, respectively, P < .001). Inspiratory resistance was significantly higher in COPD subjects as compared with normal lung and ARDS subjects (22 [16-33] cm H2O/L/s vs 13 [10-15] and 12 [9-14] cm H2O/L/s, respectively, P < .001). The expiratory time constant was significantly different for each lung condition (0.60 [0.51-0.71], 1.07 [0.68-2.14], and 0.46 [0.40-0.55] s for normal lung, COPD, and ARDS subjects, respectively, P < .001). In the subgroup of subjects with ARDS, there were no significant differences in respiratory mechanics variables among mild, moderate, and severe ARDS. CONCLUSIONS: This study provides educators, researchers, and manufacturers with a standard set of practical parameters for simulating the respiratory system's mechanical properties in passive conditions. PMID- 29042487 TI - Differential Response of Glioma Stem Cells to Arsenic Trioxide Therapy Is Regulated by MNK1 and mRNA Translation. AB - Mesenchymal (MES) and proneural (PN) are two distinct glioma stem cell (GSC) populations that drive therapeutic resistance in glioblastoma (GBM). We screened a panel of 650 small molecules against patient-derived GBM cells to discover compounds targeting specific GBM subtypes. Arsenic trioxide (ATO), an FDA approved drug that crosses the blood-brain barrier, was identified as a potent PN specific compound in the initial screen and follow-up validation studies. Furthermore, MES and PN GSCs exhibited differential sensitivity to ATO. As ATO has been shown to activate the MAPK-interacting kinase 1 (MNK1)-eukaryotic translation initiation factor 4E (eIF4E) pathway and subsequent mRNA translation in a negative regulatory feedback manner, the mechanistic role of ATO resistance in MES GBM was explored. In GBM cells, ATO-activated translation initiation cellular events via the MNK1-eIF4E signaling axis. Furthermore, resistance to ATO in intracranial PDX tumors correlated with high eIF4E phosphorylation. Polysomal fractionation and microarray analysis of GBM cells were performed to identify ATO's effect on mRNA translation and enrichment of anti-apoptotic mRNAs in the ATO-induced translatome was found. Additionally, it was determined that MNK inhibition sensitized MES GSCs to ATO in neurosphere and apoptosis assays. Finally, examination of the effect of ATO on patients from a phase I/II clinical trial of ATO revealed that PN GBM patients responded better to ATO than other subtypes as demonstrated by longer overall and progression-free survival.Implications: These findings raise the possibility of a unique therapeutic approach for GBM, involving MNK1 targeting to sensitize MES GSCs to drugs like arsenic trioxide. Mol Cancer Res; 16(1); 32-46. (c)2017 AACR. PMID- 29042488 TI - Natural killer cells mediate pathophysiology in response to reduced uterine perfusion pressure. AB - Preeclampsia is associated with hypertension, small-for-gestational-age babies, and increased cytolytic natural killer (NK) cells. The specific role of cytolytic NK cells in the pathophysiology of preeclampsia has not been clearly defined. We hypothesized that Reduced Uterine Perfusion Pressure (RUPP) stimulates proliferation and cytolytic activation of NK cells, and that reducing NK cells in RUPP would prevent hypertension, intrauterine growth restriction, and inflammation in response to placental ischemia. RUPP was induced on gestation day (GD) 14 in pregnant rats. NK cells were depleted by i.p. administration of anti asialo GM1 antibody on GDs 15 and 17. Placental and circulating NK cells were quantified via flow cytometry, mean arterial pressure (MAP), fetal weights, and cytokines were measured on GD 19. Total placental NK cells were 7.4 +/- 2% of gated cells in normal pregnant (NP; n=10) and 16.5 +/- 3% of gated cells in RUPP (n=10) rats. Furthermore, cytolytic placental NK cells also increased in RUPP. Depletion of NK cells in RUPP (RUPP + anti-ASGM1) significantly improved MAP and fetal weights. MAP was 108 +/- 2 mmHg in NP, 125 +/- 2 mmHg in RUPP, and 112 +/- 2 mmHg in RUPP + anti-ASGM1 (n=12). Fetal weight was 2.32 +/- 0.05 in NP, 1.8 +/- 0.04g in RUPP, and increased to 2.0 +/- 0.04g in RUPP + anti-ASGM1. Placental interferon-gamma (IFN-gamma) was 40.4 +/- 5.2 pg/mg in NP, 72.17 +/- 3.2 pg/mg in RUPP, and 44.0 +/- 6.5 pg/mg in RUPP + anti-ASGM1 (P<0.05). Placental tumor necrosis factor-alpha (TNF-alpha) was 17.9 +/- 1.7 pg/mg in NP, 23.9 +/- 2.2 pg/mg in RUPP, and 12.9 +/- 2.3 pg/mg in RUPP + anti-ASGM1 (P<0.05). Depletion of NK cells significantly lowered MAP, intrauterine growth restriction, and inflammation in RUPP rats indicating that cytolytic NK cells are important in preeclampsia pathophysiology. PMID- 29042489 TI - Alterations in endothelin type B receptor contribute to microvascular dysfunction in women who have had preeclampsia. AB - Microvascular dysfunction originating during a preeclamptic pregnancy persists postpartum and probably contributes to increased CVD risk in these women. One putative mechanism contributing to this dysfunction is increased vasoconstrictor sensitivity to endothelin-1 (ET-1), mediated by alterations in ET-1 receptor type B (ETBR). We evaluated ET-1 sensitivity, ETAR, and ETBR contributions to ET-1 mediated constriction, and the mechanistic role of ETBR in endothelium-dependent dilation in vivo in the microvasculature of postpartum women who had preeclampsia (PrEC, n=12) and control women who had a healthy pregnancy (HC, n=12). We hypothesized that (1) PrEC would have a greater vasoconstrictor response to ET-1, and (2) reduced ETBR-mediated dilation. We further hypothesized that ETBR blockade would attenuate endothelium-dependent vasodilation in HC, but not PrEC. Microvascular reactivity was assessed by measurement of cutaneous vascular conductance responses to graded infusion of ET-1 (10-20-10-8 mol/l), ET-1 + 500 nmol/l BQ-123 (ETAR-blockade), and ET-1 + 300 nmol/l BQ-788 (ETBR-blockade), and during graded infusion of acetylcholine (ACh, 10-7-102 mmol/l) and a standardized local heating protocol with and without ETBR-inhibition. PrEC had an increased vasoconstriction response to ET-1 (P=0.02). PrEC demonstrated reduced dilation responses to selective ETBR stimulation with ET-1 (P=0.01). ETBR-inhibition augmented ET-1-mediated constriction in HC (P=0.01) but attenuated ET-1-mediated constriction in PrEC (P=0.003). ETBR-inhibition attenuated endothelium-dependent vasodilation responses to 100mmol/l ACh (P=0.04) and local heat (P=0.003) in HC but increased vasodilation (ACh: P=0.01; local heat: P=0.03) in PrEC. Women who have had preeclampsia demonstrate augmented vasoconstrictor sensitivity to ET-1, mediated by altered ETBR signaling. Furthermore, altered ETBR function contributes to diminished endothelium-dependent dilation in previously preeclamptic women. PMID- 29042490 TI - Remote Ischemic Conditioning May Improve Outcomes of Patients With Cerebral Small Vessel Disease. AB - BACKGROUND AND PURPOSE: We aimed to evaluate the efficacy of remote ischemic conditioning (RIC) in patients with cerebral small-vessel disease. METHODS: Thirty patients with cerebral small-vessel disease-related mild cognitive impairment were enrolled in this prospective, randomized controlled study for 1 year. Besides routine medical treatment, participants were randomized into the experimental group (n=14) undergoing 5 cycles consisting of ischemia followed by reperfusion for 5 minutes on both upper limbs twice daily for 1 year or the control group (n=16) who were treated with sham ischemia-reperfusion cycles. The primary outcome was the change of brain lesions, and secondary outcomes were changes of cognitive function, plasma biomarkers, and cerebral hemodynamic parameters both at baseline and at the end of 1-year follow-up. RESULTS: Compared with pretreatment, the post-treatment white matter hyperintensities volume in the RIC group was significantly reduced (9.10+/-7.42 versus 6.46+/-6.05 cm3; P=0.020), whereas no significant difference was observed in the sham-RIC group (8.99+/-6.81 versus 8.07+/-6.56 cm3; P=0.085). The reduction of white matter hyperintensities volume in the RIC group was more substantial than that in sham group (-2.632 versus -0.935 cm3; P=0.049). No significant difference was found in the change of the number of lacunes between 2 groups (0 versus 0; P=0.694). A significant treatment difference at 1 year on visuospatial and executive ability was found between the 2 groups (0.639 versus 0.191; P=0.048). RIC showed greater effects compared with sham-RIC on plasma triglyceride (-0.433 versus 0.236 mmol/L; P=0.005), total cholesterol (-0.975 versus 0.134 mmol/L; P<0.001), low density lipoprotein (-0.645 versus -0.029 mmol/L; P=0.034), and homocysteine ( 4.737 versus -1.679 umol/L; P=0.044). Changes of the pulsation indices of middle cerebral arteries from the baseline to 1 year were different between the 2 groups (right: -0.075 versus 0.043; P=0.030; left: -0.085 versus 0.043; P=0.010). CONCLUSIONS: RIC seems to be potentially effective in patients with cerebral small-vessel disease in slowing cognition decline and reducing white matter hyperintensities. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT01658306. PMID- 29042491 TI - Using the Telephone Interview for Cognitive Status and Telephone Montreal Cognitive Assessment for Evaluating Vascular Cognitive Impairment: Promising Call or Put on Hold? PMID- 29042492 TI - Validation of the Telephone Interview of Cognitive Status and Telephone Montreal Cognitive Assessment Against Detailed Cognitive Testing and Clinical Diagnosis of Mild Cognitive Impairment After Stroke. AB - BACKGROUND AND PURPOSE: Assessment of cognitive status poststroke is recommended by guidelines but follow-up can often not be done in person. The Telephone Interview of Cognitive Status (TICS) and the Telephone Montreal Cognitive Assessment (T-MoCA) are considered useful screening instruments. Yet, evidence to define optimal cut-offs for mild cognitive impairment (MCI) after stroke is limited. METHODS: We studied 105 patients enrolled in the prospective DEDEMAS study (Determinants of Dementia After Stroke; NCT01334749). Follow-up visits at 6, 12, 36, and 60 months included comprehensive neuropsychological testing and the Clinical Dementia Rating scale, both of which served as reference standards. The original TICS and T-MoCA were obtained in 2 separate telephone interviews each separated from the personal visits by 1 week (1 before and 1 after the visit) with the order of interviews (TICS versus T-MoCA) alternating between subjects. Area under the receiver-operating characteristic curves was determined. RESULTS: Ninety-six patients completed both the face-to-face visits and the 2 interviews. Area under the receiver-operating characteristic curves ranged between 0.76 and 0.83 for TICS and between 0.73 and 0.94 for T-MoCA depending on MCI definition. For multidomain MCI defined by multiple-tests definition derived from comprehensive neuropsychological testing optimal sensitivities and specificities were achieved at cut-offs <36 (TICS) and <18 (T-MoCA). Validity was lower using single-test definition, and cut-offs were higher compared with multiple-test definitions. Using Clinical Dementia Rating as the reference, optimal cut-offs for MCI were <36 (TICS) and approximately 19 (T-MoCA). CONCLUSIONS: Both the TICS and T-MoCA are valid screening tools poststroke, particularly for multidomain MCI using multiple-test definition. PMID- 29042494 TI - Insights from the Genome Sequence of Mycobacterium lepraemurium: Massive Gene Decay and Reductive Evolution. AB - Mycobacterium lepraemurium is the causative agent of murine leprosy, a chronic, granulomatous disease similar to human leprosy. Due to the similar clinical manifestations of human and murine leprosy and the difficulty of growing both bacilli axenically, Mycobacterium leprae and M. lepraemurium were once thought to be closely related, although it was later suggested that M. lepraemurium might be related to Mycobacterium avium In this study, the complete genome of M. lepraemurium was sequenced using a combination of PacBio and Illumina sequencing. Phylogenomic analyses confirmed that M. lepraemurium is a distinct species within the M. avium complex (MAC). The M. lepraemurium genome is 4.05 Mb in length, which is considerably smaller than other MAC genomes, and it comprises 2,682 functional genes and 1,139 pseudogenes, which indicates that M. lepraemurium has undergone genome reduction. An error-prone repair homologue of the DNA polymerase III alpha-subunit was found to be nonfunctional in M. lepraemurium, which might contribute to pseudogene formation due to the accumulation of mutations in nonessential genes. M. lepraemurium has retained the functionality of several genes thought to influence virulence among members of the MAC.IMPORTANCEMycobacterium lepraemurium seems to be evolving toward a minimal set of genes required for an obligatory intracellular lifestyle within its host, a niche seldom adopted by most mycobacteria, as they are free-living. M. lepraemurium could be used as a model to elucidate functions of genes shared with other members of the MAC. Its reduced gene set can be exploited for studying the essentiality of genes in related pathogenic species, which might lead to discovery of common virulence factors or clarify host-pathogen interactions. M. lepraemurium can be cultivated in vitro only under specific conditions and even then with difficulty. Elucidating the metabolic (in)capabilities of M. lepraemurium will help develop suitable axenic media and facilitate genetic studies. PMID- 29042493 TI - Unraveling the Self-Assembly of the Pseudomonas aeruginosa XcpQ Secretin Periplasmic Domain Provides New Molecular Insights into Type II Secretion System Secreton Architecture and Dynamics. AB - The type II secretion system (T2SS) releases large folded exoproteins across the envelope of many Gram-negative pathogens. This secretion process therefore requires specific gating, interacting, and dynamics properties mainly operated by a bipartite outer membrane channel called secretin. We have a good understanding of the structure-function relationship of the pore-forming C-terminal domain of secretins. In contrast, the high flexibility of their periplasmic N-terminal domain has been an obstacle in obtaining the detailed structural information required to uncover its molecular function. In Pseudomonas aeruginosa, the Xcp T2SS plays an important role in bacterial virulence by its capacity to deliver a large panel of toxins and degradative enzymes into the surrounding environment. Here, we revealed that the N-terminal domain of XcpQ secretin spontaneously self assembled into a hexamer of dimers independently of its C-terminal domain. Furthermore, and by using multidisciplinary approaches, we elucidate the structural organization of the XcpQ N domain and demonstrate that secretin flexibility at interdimer interfaces is mandatory for its function.IMPORTANCE Bacterial secretins are large homooligomeric proteins constituting the outer membrane pore-forming element of several envelope-embedded nanomachines essential in bacterial survival and pathogenicity. They comprise a well-defined membrane embedded C-terminal domain and a modular periplasmic N-terminal domain involved in substrate recruitment and connection with inner membrane components. We are studying the XcpQ secretin of the T2SS present in the pathogenic bacterium Pseudomonas aeruginosa Our data highlight the ability of the XcpQ N-terminal domain to spontaneously oligomerize into a hexamer of dimers. Further in vivo experiments revealed that this domain adopts different conformations essential for the T2SS secretion process. These findings provide new insights into the functional understanding of bacterial T2SS secretins. PMID- 29042495 TI - Impact of Dietary Resistant Starch on the Human Gut Microbiome, Metaproteome, and Metabolome. AB - Diet can influence the composition of the human microbiome, and yet relatively few dietary ingredients have been systematically investigated with respect to their impact on the functional potential of the microbiome. Dietary resistant starch (RS) has been shown to have health benefits, but we lack a mechanistic understanding of the metabolic processes that occur in the gut during digestion of RS. Here, we collected samples during a dietary crossover study with diets containing large or small amounts of RS. We determined the impact of RS on the gut microbiome and metabolic pathways in the gut, using a combination of "omics" approaches, including 16S rRNA gene sequencing, metaproteomics, and metabolomics. This multiomics approach captured changes in the abundance of specific bacterial species, proteins, and metabolites after a diet high in resistant starch (HRS), providing key insights into the influence of dietary interventions on the gut microbiome. The combined data showed that a high-RS diet caused an increase in the ratio of Firmicutes to Bacteroidetes, including increases in relative abundances of some specific members of the Firmicutes and concurrent increases in enzymatic pathways and metabolites involved in lipid metabolism in the gut.IMPORTANCE This work was undertaken to obtain a mechanistic understanding of the complex interplay between diet and the microorganisms residing in the intestine. Although it is known that gut microbes play a key role in digestion of the food that we consume, the specific contributions of different microorganisms are not well understood. In addition, the metabolic pathways and resultant products of metabolism during digestion are highly complex. To address these knowledge gaps, we used a combination of molecular approaches to determine the identities of the microorganisms in the gut during digestion of dietary starch as well as the metabolic pathways that they carry out. Together, these data provide a more complete picture of the function of the gut microbiome in digestion, including links between an RS diet and lipid metabolism and novel linkages between specific gut microbes and their metabolites and proteins produced in the gut. PMID- 29042496 TI - Structural Basis of Type 2 Secretion System Engagement between the Inner and Outer Bacterial Membranes. AB - Sophisticated nanomachines are used by bacteria for protein secretion. In Gram negative bacteria, the type 2 secretion system (T2SS) is composed of a pseudopilus assembly platform in the inner membrane and a secretin complex in the outer membrane. The engagement of these two megadalton-sized complexes is required in order to secrete toxins, effectors, and hydrolytic enzymes. Pseudomonas aeruginosa has at least two T2SSs, with the ancestral nanomachine having a secretin complex composed of XcpQ. Until now, no high-resolution structural information was available to distinguish the features of this Pseudomonas-type secretin, which varies greatly in sequence from the well characterized Klebsiella-type and Vibrio-type secretins. We have purified the ~1 MDa secretin complex and analyzed it by cryo-electron microscopy. Structural comparisons with the Klebsiella-type secretin complex revealed a striking structural homology despite the differences in their sequence characteristics. At 3.6-A resolution, the secretin complex was found to have 15-fold symmetry throughout the membrane-embedded region and through most of the domains in the periplasm. However, the N1 domain and N0 domain were not well ordered into this 15-fold symmetry. We suggest a model wherein this disordering of the subunit symmetry for the periplasmic N domains provides a means to engage with the 6-fold symmetry in the inner membrane platform, with a metastable engagement that can be disrupted by substrate proteins binding to the region between XcpP, in the assembly platform, and the XcpQ secretin.IMPORTANCE How the outer membrane and inner membrane components of the T2SS engage each other and yet can allow for substrate uptake into the secretin chamber has challenged the protein transport field for some time. This vexing question is of significance because the T2SS collects folded protein substrates in the periplasm for transport out of the bacterium and yet must discriminate these few substrate proteins from all the other hundred or so folded proteins in the periplasm. The structural analysis here supports a model wherein substrates must compete against a metastable interaction between XcpP in the assembly platform and the XcpQ secretin, wherein only structurally encoded features in the T2SS substrates compete well enough to disrupt XcpQ-XcpP for entry into the XcpQ chamber, for secretion across the outer membrane. PMID- 29042497 TI - A Single Dual-Function Enzyme Controls the Production of Inflammatory NOD Agonist Peptidoglycan Fragments by Neisseria gonorrhoeae. AB - Neisseria gonorrhoeae gonococcus (GC) is a Gram-negative betaproteobacterium and causative agent of the sexually transmitted infection gonorrhea. During growth, GC releases lipooligosaccharide (LOS) and peptidoglycan (PG) fragments, which contribute significantly to the inflammatory damage observed during human infection. In ascending infection of human Fallopian tubes, inflammation leads to increased risk of ectopic pregnancy, pelvic inflammatory disease, and sterility. Of the PG fragments released by GC, most are disaccharide peptide monomers, and of those, 80% have tripeptide stems despite the observation that tetrapeptide stems make up 80% of the assembled cell wall. We identified a serine-protease l,d carboxypeptidase, NGO1274 (LdcA), as the enzyme responsible for converting cell wall tetrapeptide-stem PG to released tripeptide-stem PG. Unlike characterized cytoplasmic LdcA homologs in gammaproteobacteria, LdcA in GC is exported to the periplasm, and its localization is critical for its activity in modifying PG fragments for release. Distinct among other characterized l,d-carboxypeptidases, LdcA from GC is also capable of catalyzing the cleavage of specific peptide cross bridges (endopeptidase activity). To define the role of ldcA in pathogenesis, we demonstrate that ldcA disruption results in both loss of NOD1-dependent NF-kappaB activation and decreased NOD2-dependent NF-kappaB activation while not affecting Toll-like receptor (TLR) agonist release. Since the human intracellular peptidoglycan receptor NOD1 (hNOD1) specifically recognizes PG fragments with a terminal meso-DAP rather than d-alanine, we conclude that LdcA is required for GC to provoke NOD1-dependent responses in cells of the human host.IMPORTANCE The macromolecular meshwork of peptidoglycan serves essential functions in determining bacterial cell shape, protecting against osmotic lysis, and defending cells from external assaults. The conserved peptidoglycan structure, however, is also recognized by eukaryotic pattern recognition receptors, which can trigger immune responses against bacteria. Many bacteria can induce an inflammatory response through the intracellular peptidoglycan receptor NOD1, but Neisseria gonorrhoeae serves as an extreme example, releasing fragments of peptidoglycan into the environment during growth that specifically antagonize human NOD1. Understanding the peptidoglycan breakdown mechanisms that allow Neisseria to promote NOD1 activation, rather than avoiding or suppressing immune detection, is critical to understanding the pathogenesis of this increasingly drug-resistant organism. We identify a peptidoglycan l,d-carboxypeptidase responsible for converting liberated peptidoglycan fragments into the human NOD1 agonist and find that the same enzyme has endopeptidase activity on certain peptidoglycan cross links, the first described combination of those two activities in a single enzyme. PMID- 29042498 TI - Capsids and Genomes of Jumbo-Sized Bacteriophages Reveal the Evolutionary Reach of the HK97 Fold. AB - Large icosahedral viruses that infect bacteria represent an extreme of the coevolution of capsids and the genomes they accommodate. One subset of these large viruses is the jumbophages, tailed phages with double-stranded DNA genomes of at least 200,000 bp. We explored the mechanism leading to increased capsid and genome sizes by characterizing structures of several jumbophage capsids and the DNA packaged within them. Capsid structures determined for six jumbophages were consistent with the canonical phage HK97 fold, and three had capsid geometries with novel triangulation numbers (T=25, T=28, and T=52). Packaged DNA (chromosome) sizes were larger than the genome sizes, indicating that all jumbophages use a head-full DNA packaging mechanism. For two phages (PAU and G), the sizes appeared very much larger than their genome length. We used two dimensional DNA gel electrophoresis to show that these two DNAs migrated abnormally due to base modifications and to allow us to calculate their actual chromosome sizes. Our results support a ratchet model of capsid and genome coevolution whereby mutations lead to increased capsid volume and allow the acquisition of additional genes. Once the added genes and larger capsid are established, mutations that restore the smaller size are disfavored.IMPORTANCE A large family of viruses share the same fold of the capsid protein as bacteriophage HK97, a virus that infects bacteria. Members of this family use different numbers of the capsid protein to build capsids of different sizes. Here, we examined the structures of extremely large capsids and measured their DNA content relative to the sequenced genome lengths, aiming to understand the process that increases size. We concluded that mutational changes leading to larger capsids become locked in by subsequent changes to the genome organization. PMID- 29042500 TI - Immune Regulation of Plasmodium Is Anopheles Species Specific and Infection Intensity Dependent. AB - Malaria parasite ookinetes must traverse the vector mosquito midgut epithelium to transform into sporozoite-producing oocysts. The Anopheles innate immune system is a key regulator of this process, thereby determining vector competence and disease transmission. The role of Anopheles innate immunity factors as agonists or antagonists of malaria parasite infection has been previously determined using specific single Anopheles-Plasmodium species combinations. Here we show that the two C-type lectins CTL4 and CTLMA2 exert differential agonistic and antagonistic regulation of parasite killing in African and South American Anopheles species. The C-type lectins regulate both parasite melanization and lysis through independent mechanisms, and their implication in parasite melanization is dependent on infection intensity rather than mosquito-parasite species combination. We show that the leucine-rich repeat protein LRIM1 acts as an antagonist on the development of Plasmodium ookinetes and as a regulator of oocyst size and sporozoite production in the South American mosquito Anopheles albimanus Our findings explain the rare observation of human Plasmodium falciparum melanization and define a key factor mediating the poor vector competence of Anopheles albimanus for Plasmodium berghei and Plasmodium falciparumIMPORTANCE Malaria, one of the world's deadliest diseases, is caused by Plasmodium parasites that are vectored to humans by the bite of Anopheles mosquitoes. The mosquito's innate immune system is actively engaged in suppressing Plasmodium infection. Studies on mosquito immunity revealed multiple factors that act as either facilitators or inhibitors of Plasmodium infection, but these findings were mostly based on single Anopheles-Plasmodium species combinations, not taking into account the diversity of mosquito and parasite species. We show that the functions of CTL4 and CTLMA2 have diverged in different vector species and can be both agonistic and antagonistic for Plasmodium infection. Their protection against parasite melanization in Anopheles gambiae is dependent on infection intensity, rather than the mosquito-parasite combination. Importantly, we describe for the first time how LRIM1 plays an essential role in Plasmodium infection of Anopheles albimanus, suggesting it is a key regulator of the poor vector competence of this species. PMID- 29042499 TI - Activation of the Listeria monocytogenes Virulence Program by a Reducing Environment. AB - Upon entry into the host cell cytosol, the facultative intracellular pathogen Listeria monocytogenes coordinates the expression of numerous essential virulence factors by allosteric binding of glutathione (GSH) to the Crp-Fnr family transcriptional regulator PrfA. Here, we report that robust virulence gene expression can be recapitulated by growing bacteria in a synthetic medium containing GSH or other chemical reducing agents. Bacteria grown under these conditions were 45-fold more virulent in an acute murine infection model and conferred greater immunity to a subsequent lethal challenge than bacteria grown in conventional media. During cultivation in vitro, PrfA activation was completely dependent on the intracellular levels of GSH, as a glutathione synthase mutant (DeltagshF) was activated by exogenous GSH but not reducing agents. PrfA activation was repressed in a synthetic medium supplemented with oligopeptides, but the repression was relieved by stimulation of the stringent response. These data suggest that cytosolic L. monocytogenes interprets a combination of metabolic and redox cues as a signal to initiate robust virulence gene expression in vivoIMPORTANCE Intracellular pathogens are responsible for much of the worldwide morbidity and mortality from infectious diseases. These pathogens have evolved various strategies to proliferate within individual cells of the host and avoid the host immune response. Through cellular invasion or the use of specialized secretion machinery, all intracellular pathogens must access the host cell cytosol to establish their replicative niches. Determining how these pathogens sense and respond to the intracellular compartment to establish a successful infection is critical to our basic understanding of the pathogenesis of each organism and for the rational design of therapeutic interventions. Listeria monocytogenes is a model intracellular pathogen with robust in vitro and in vivo infection models. Studies of the host-sensing and downstream signaling mechanisms evolved by L. monocytogenes often describe themes of pathogenesis that are broadly applicable to less tractable pathogens. Here, we describe how bacteria use external redox states as a cue to activate virulence. PMID- 29042501 TI - Plasmodium falciparum Calcium-Dependent Protein Kinase 2 Is Critical for Male Gametocyte Exflagellation but Not Essential for Asexual Proliferation. AB - Drug development efforts have focused mostly on the asexual blood stages of the malaria parasite Plasmodium falciparum Except for primaquine, which has its own limitations, there are no available drugs that target the transmission of the parasite to mosquitoes. Therefore, there is a need to validate new parasite proteins that can be targeted for blocking transmission. P. falciparum calcium dependent protein kinases (PfCDPKs) play critical roles at various stages of the parasite life cycle and, importantly, are absent in the human host. These features mark them as attractive drug targets. In this study, using CRISPR/Cas9 we successfully knocked out PfCDPK2 from blood-stage parasites, which was previously thought to be an indispensable protein. The growth rate of the PfCDPK2 knockout (KO) parasites was similar to that of wild-type parasites, confirming that PfCDPK2 function is not essential for the asexual proliferation of the parasite in vitro The mature male and female gametocytes of PfCDPK2 KO parasites become round after induction. However, they fail to infect female Anopheles stephensi mosquitoes due to a defect(s) in male gametocyte exflagellation and possibly in female gametes.IMPORTANCE Despite reductions in the number of deaths it causes, malaria continues to be a leading infectious disease of the developing world. For effective control and elimination of malaria, multiple stages of the parasite need to be targeted. One such stage includes the transmission of the parasite to mosquitoes. Here, we demonstrate the successful knockout of PfCDPK2, which was previously thought to be indispensable for parasite growth in red blood cells. The PfCDPK2 KO parasites are incapable of establishing an infection in mosquitoes. Therefore, our study suggests that targeting PfCDPK2 may be a good strategy to control malaria transmission in countries with high transmission. Moreover, molecular understanding of the signaling pathway of PfCDPK2 may provide additional targets for malaria control. PMID- 29042503 TI - Erratum for Hagan et al., "Petrobactin Is Exported from Bacillus anthracis by the RND-Type Exporter ApeX". PMID- 29042502 TI - Lipopolysaccharide from Crypt-Specific Core Microbiota Modulates the Colonic Epithelial Proliferation-to-Differentiation Balance. AB - We identified a crypt-specific core microbiota (CSCM) dominated by strictly aerobic, nonfermentative bacteria in murine cecal and proximal colonic (PC) crypts and hypothesized that, among its possible functions, it may affect epithelial regeneration. In the present work, we isolated representative CSCM strains using selective media based upon our initial 16S rRNA-based molecular identification (i.e., Acinetobacter, Delftia, and Stenotrophomonas). Their tropism for the crypt was confirmed, and their influence on epithelial regeneration was demonstrated in vivo by monocolonization of germfree mice. We also showed that lipopolysaccharide (LPS), through its endotoxin activity, was the dominant bacterial agonist controlling proliferation. The relevant molecular mechanisms were analyzed using colonic crypt-derived organoids exposed to bacterial sonicates or highly purified LPS as agonists. We identified a Toll-like receptor 4 (TLR4)-dependent program affecting crypts at different stages of epithelial differentiation. LPS played a dual role: it repressed cell proliferation through RIPK3-mediated necroptosis of stem cells and cells of the transit-amplifying compartment and concurrently enhanced cell differentiation, particularly the goblet cell lineage.IMPORTANCE The LPS from crypt-specific core microbiota controls intestinal epithelium proliferation through necroptosis of stem cells and enhances cell differentiation, mainly the goblet cell lineage. PMID- 29042504 TI - Unintended Laboratory-Driven Evolution Reveals Genetic Requirements for Biofilm Formation by Desulfovibrio vulgaris Hildenborough. AB - Biofilms of sulfate-reducing bacteria (SRB) are of particular interest as members of this group are culprits in corrosion of industrial metal and concrete pipelines as well as being key players in subsurface metal cycling. Yet the mechanism of biofilm formation by these bacteria has not been determined. Here we show that two supposedly identical wild-type cultures of the SRB Desulfovibrio vulgaris Hildenborough maintained in different laboratories have diverged in biofilm formation. From genome resequencing and subsequent mutant analyses, we discovered that a single nucleotide change within DVU1017, the ABC transporter of a type I secretion system (T1SS), was sufficient to eliminate biofilm formation in D. vulgaris Hildenborough. Two T1SS cargo proteins were identified as likely biofilm structural proteins, and the presence of at least one (with either being sufficient) was shown to be required for biofilm formation. Antibodies specific to these biofilm structural proteins confirmed that DVU1017, and thus the T1SS, is essential for localization of these adhesion proteins on the cell surface. We propose that DVU1017 is a member of the lapB category of microbial surface proteins because of its phenotypic similarity to the adhesin export system described for biofilm formation in the environmental pseudomonads. These findings have led to the identification of two functions required for biofilm formation in D. vulgaris Hildenborough and focus attention on the importance of monitoring laboratory-driven evolution, as phenotypes as fundamental as biofilm formation can be altered.IMPORTANCE The growth of bacteria attached to a surface (i.e., biofilm), specifically biofilms of sulfate-reducing bacteria, has a profound impact on the economy of developed nations due to steel and concrete corrosion in industrial pipelines and processing facilities. Furthermore, the presence of sulfate-reducing bacteria in oil wells causes oil souring from sulfide production, resulting in product loss, a health hazard to workers, and ultimately abandonment of wells. Identification of the required genes is a critical step for determining the mechanism of biofilm formation by sulfate reducers. Here, the transporter by which putative biofilm structural proteins are exported from sulfate-reducing Desulfovibrio vulgaris Hildenborough cells was discovered, and a single nucleotide change within the gene coding for this transporter was found to be sufficient to completely stop formation of biofilm. PMID- 29042505 TI - Binding synergy as an essential step for tRNA editing and modification enzyme codependence in Trypanosoma brucei. AB - Transfer RNAs acquire a variety of naturally occurring chemical modifications during their maturation; these fine-tune their structure and decoding properties in a manner critical for protein synthesis. We recently reported that in the eukaryotic parasite, Trypanosoma brucei, a methylation and deamination event are unexpectedly interconnected, whereby the tRNA adenosine deaminase (TbADAT2/3) and the 3-methylcytosine methyltransferase (TbTrm140) strictly rely on each other for activity, leading to formation of m3C and m3U at position 32 in several tRNAs. Still however, it is not clear why these two enzymes, which work independently in other systems, are strictly codependent in T. brucei Here, we show that these enzymes exhibit binding synergism, or a mutual increase in binding affinity, that is more than the sum of the parts, when added together in a reaction. Although these enzymes interact directly with each other, tRNA binding assays using enzyme variants mutated in critical binding and catalytic sites indicate that the observed binding synergy stems from contributions from tRNA-binding domains distal to their active sites. These results provide a rationale for the known interactions of these proteins, while also speaking to the modulation of substrate specificity between seemingly unrelated enzymes. This information should be of value in furthering our understanding of how tRNA modification enzymes act together to regulate gene expression at the post-transcriptional level and provide a basis for the interdependence of such activities. PMID- 29042506 TI - Non-Watson-Crick RNA synthesis suited to origin functions. AB - A templated RNA synthesis is characterized in which G5'pp5'G accelerates synthesis of A5'pp5'A from pA and chemically activated ImpA precursors. Similar acceleration is not observable in the presence of UppU, CppC, AppG, AppA, or pG alone. Thus, it seems likely that AppA is templated by GppG via a form or forms of G:A base-pairing. AppA also appears, more slowly, via a previously known untemplated second-order chemical route. Such AppA synthesis requires only ordinary near-neutral solutions containing monovalent and divalent salts, and rates are only slightly sensitive to variation in pH. Templated synthesis rates are first order in pA, ImpA, and template GppG; thus third order overall. Therefore, this reaction resembles cross-templating of AppA on poly(U), but is notably slower and less sensitive to temperature. Viewing AppA as a coenzyme analog, GppG templating provides a simpler molecular route, termed para templating, to encoded chemical functions. Para-templating can also arise from a single, localized nucleobase geosynthetic event which yields purines. It requires only a single backbone-forming chemistry. Thus it may have appeared earlier and served as evolutionary precursor for more complex forms of encoded genetic expression. PMID- 29042507 TI - Selection of functional 2A sequences within foot-and-mouth disease virus; requirements for the NPGP motif with a distinct codon bias. AB - Foot-and-mouth disease virus (FMDV) has a positive-sense ssRNA genome including a single, large, open reading frame. Splitting of the encoded polyprotein at the 2A/2B junction is mediated by the 2A peptide (18 residues long), which induces a nonproteolytic, cotranslational "cleavage" at its own C terminus. A conserved feature among variants of 2A is the C-terminal motif N16P17G18/P19, where P19 is the first residue of 2B. It has been shown previously that certain amino acid substitutions can be tolerated at residues E14, S15, and N16 within the 2A sequence of infectious FMDVs, but no variants at residues P17, G18, or P19 have been identified. In this study, using highly degenerate primers, we analyzed if any other residues can be present at each position of the NPG/P motif within infectious FMDV. No alternative forms of this motif were found to be encoded by rescued FMDVs after two, three, or four passages. However, surprisingly, a clear codon preference for the wt nucleotide sequence encoding the NPGP motif within these viruses was observed. Indeed, the codons selected to code for P17 and P19 within this motif were distinct; thus the synonymous codons are not equivalent. PMID- 29042508 TI - Just-in-time simulation-based training. PMID- 29042509 TI - Properties of real metallic surfaces: Effects of density functional semilocality and van der Waals nonlocality. AB - We have computed the surface energies, work functions, and interlayer surface relaxations of clean (111), (100), and (110) surfaces of Al, Cu, Ru, Rh, Pd, Ag, Pt, and Au. We interpret the surface energy from liquid metal measurements as the mean of the solid-state surface energies over these three lowest-index crystal faces. We compare experimental (and random phase approximation) reference values to those of a family of nonempirical semilocal density functionals, from the basic local density approximation (LDA) to our most advanced general purpose meta generalized gradient approximation, strongly constrained and appropriately normed (SCAN). The closest agreement is achieved by the simplest density functional LDA, and by the most sophisticated one, SCAN+rVV10 (Vydrov-Van Voorhis 2010). The long range van der Waals interaction, incorporated through rVV10, increases the surface energies by about 10%, and increases the work functions by about 3%. LDA works for metal surfaces through two known error cancellations. The Perdew-Burke Ernzerhof generalized gradient approximation tends to underestimate both surface energies (by about 24%) and work functions (by about 4%), yielding the least accurate results. The amount by which a functional underestimates these surface properties correlates with the extent to which it neglects van der Waals attraction at intermediate and long range. Qualitative arguments are given for the signs of the van der Waals contributions to the surface energy and work function. A standard expression for the work function in Kohn-Sham (KS) theory is shown to be valid in generalized KS theory. Interlayer relaxations from different functionals are in reasonable agreement with one another, and usually with experiment. PMID- 29042510 TI - The misleading narrative of the canonical faculty productivity trajectory. AB - A scientist may publish tens or hundreds of papers over a career, but these contributions are not evenly spaced in time. Sixty years of studies on career productivity patterns in a variety of fields suggest an intuitive and universal pattern: Productivity tends to rise rapidly to an early peak and then gradually declines. Here, we test the universality of this conventional narrative by analyzing the structures of individual faculty productivity time series, constructed from over 200,000 publications and matched with hiring data for 2,453 tenure-track faculty in all 205 PhD-granting computer science departments in the United States and Canada. Unlike prior studies, which considered only some faculty or some institutions, or lacked common career reference points, here we combine a large bibliographic dataset with comprehensive information on career transitions that covers an entire field of study. We show that the conventional narrative confidently describes only one-fifth of faculty, regardless of department prestige or researcher gender, and the remaining four-fifths of faculty exhibit a rich diversity of productivity patterns. To explain this diversity, we introduce a simple model of productivity trajectories and explore correlations between its parameters and researcher covariates, showing that departmental prestige predicts overall individual productivity and the timing of the transition from first- to last-author publications. These results demonstrate the unpredictability of productivity over time and open the door for new efforts to understand how environmental and individual factors shape scientific productivity. PMID- 29042511 TI - Dynamics and unsteady morphologies at ice interfaces driven by D2O-H2O exchange. AB - The growth dynamics of D2O ice in liquid H2O in a microfluidic device were investigated between the melting points of D2O ice (3.8 degrees C) and H2O ice (0 degrees C). As the temperature was decreased at rates between 0.002 degrees C/s and 0.1 degrees C/s, the ice front advanced but retreated immediately upon cessation of cooling, regardless of the temperature. This is a consequence of the competition between diffusion of H2O into the D2O ice, which favors melting of the interface, and the driving force for growth supplied by cooling. Raman microscopy tracked H/D exchange across the solid H2O-solid D2O interface, with diffusion coefficients consistent with transport of intact H2O molecules at the D2O ice interface. At fixed temperatures below 3 degrees C, the D2O ice front melted continuously, but at temperatures near 0 degrees C a scalloped interface morphology appeared with convex and concave sections that cycled between growth and retreat. This behavior, not observed for D2O ice in contact with D2O liquid or H2O ice in contact with H2O liquid, reflects a complex set of cooperative phenomena, including H/D exchange across the solid-liquid interface, latent heat exchange, local thermal gradients, and the Gibbs-Thomson effect on the melting points of the convex and concave features. PMID- 29042512 TI - In vitro reconstitution of T cell receptor-mediated segregation of the CD45 phosphatase. AB - T cell signaling initiates upon the binding of peptide-loaded MHC (pMHC) on an antigen-presenting cell to the T cell receptor (TCR) on a T cell. TCR phosphorylation in response to pMHC binding is accompanied by segregation of the transmembrane phosphatase CD45 away from TCR-pMHC complexes. The kinetic segregation hypothesis proposes that CD45 exclusion shifts the local kinase phosphatase balance to favor TCR phosphorylation. Spatial partitioning may arise from the size difference between the large CD45 extracellular domain and the smaller TCR-pMHC complex, although parsing potential contributions of extracellular protein size, actin activity, and lipid domains is difficult in living cells. Here, we reconstitute segregation of CD45 from bound receptor ligand pairs using purified proteins on model membranes. Using a model receptor ligand pair (FRB-FKBP), we first test physical and computational predictions for protein organization at membrane interfaces. We then show that the TCR-pMHC interaction causes partial exclusion of CD45. Comparing two developmentally regulated isoforms of CD45, the larger RABC variant is excluded more rapidly and efficiently (~50%) than the smaller R0 isoform (~20%), suggesting that CD45 isotypes could regulate signaling thresholds in different T cell subtypes. Similar to the sensitivity of T cell signaling, TCR-pMHC interactions with Kds of <=15 uM were needed to exclude CD45. We further show that the coreceptor PD-1 with its ligand PD-L1, immunotherapy targets that inhibit T cell signaling, also exclude CD45. These results demonstrate that the binding energies of physiological receptor-ligand pairs on the T cell are sufficient to create spatial organization at membrane-membrane interfaces. PMID- 29042513 TI - Distress and rumor exposure on social media during a campus lockdown. AB - During crisis events, people often seek out event-related information to stay informed of what is happening. However, when information from official channels is lacking or disseminated irregularly, people may be at risk for exposure to rumors that fill the information void. We studied information-seeking during a university lockdown following an active-shooter event. In study 1, students in the lockdown (n = 3,890) completed anonymous surveys 1 week later. Those who indicated receiving conflicting information about the lockdown reported greater acute stress [standardized regression coefficient (b) = 0.07; SE = 0.01; 95% confidence interval (CI), 0.04, 0.10]. Additionally, those who reported direct contact with close others via text message (or phone) and used Twitter for critical updates during the lockdown were exposed to more conflicting information. Higher acute stress was reported by heavy social media users who trusted social media for critical updates (b = 0.06, SE = 0.01; 95% CI, 0.03, 0.10). In study 2, we employed a big data approach to explore the time course of rumor transmission across 5 hours surrounding the lockdown within a subset of the university's Twitter followers. We also examined the patterning of distress in the hours during the lockdown as rumors about what was happening (e.g., presence of multiple shooters) spread among Twitter users. During periods without updates from official channels, rumors and distress increased. Results highlight the importance of releasing substantive updates at regular intervals during a crisis event and monitoring social media for rumors to mitigate rumor exposure and distress. PMID- 29042514 TI - Neuron-specific methylome analysis reveals epigenetic regulation and tau-related dysfunction of BRCA1 in Alzheimer's disease. AB - Alzheimer's disease (AD) is a chronic neurodegenerative disease characterized by pathology of accumulated amyloid beta (Abeta) and phosphorylated tau proteins in the brain. Postmortem degradation and cellular complexity within the brain have limited approaches to molecularly define the causal relationship between pathological features and neuronal dysfunction in AD. To overcome these limitations, we analyzed the neuron-specific DNA methylome of postmortem brain samples from AD patients, which allowed differentially hypomethylated region of the BRCA1 promoter to be identified. Expression of BRCA1 was significantly up regulated in AD brains, consistent with its hypomethylation. BRCA1 protein levels were also elevated in response to DNA damage induced by Abeta. BRCA1 became mislocalized to the cytoplasm and highly insoluble in a tau-dependent manner, resulting in DNA fragmentation in both in vitro cellular and in vivo mouse models. BRCA1 dysfunction under Abeta burden is consistent with concomitant deterioration of genomic integrity and synaptic plasticity. The Brca1 promoter region of AD model mice brain was similarly hypomethylated, indicating an epigenetic mechanism underlying BRCA1 regulation in AD. Our results suggest deterioration of DNA integrity as a central contributing factor in AD pathogenesis. Moreover, these data demonstrate the technical feasibility of using neuron-specific DNA methylome analysis to facilitate discovery of etiological candidates in sporadic neurodegenerative diseases. PMID- 29042515 TI - Structural basis for regulation of the nucleo-cytoplasmic distribution of Bag6 by TRC35. AB - The metazoan protein BCL2-associated athanogene cochaperone 6 (Bag6) forms a hetero-trimeric complex with ubiquitin-like 4A and transmembrane domain recognition complex 35 (TRC35). This Bag6 complex is involved in tail-anchored protein targeting and various protein quality-control pathways in the cytosol as well as regulating transcription and histone methylation in the nucleus. Here we present a crystal structure of Bag6 and its cytoplasmic retention factor TRC35, revealing that TRC35 is remarkably conserved throughout the opisthokont lineage except at the C-terminal Bag6-binding groove, which evolved to accommodate Bag6, a unique metazoan factor. While TRC35 and its fungal homolog, guided entry of tail-anchored protein 4 (Get4), utilize a conserved hydrophobic patch to bind their respective partners, Bag6 wraps around TRC35 on the opposite face relative to the Get4-5 interface. We further demonstrate that TRC35 binding is critical not only for occluding the Bag6 nuclear localization sequence from karyopherin alpha to retain Bag6 in the cytosol but also for preventing TRC35 from succumbing to RNF126-mediated ubiquitylation and degradation. The results provide a mechanism for regulation of Bag6 nuclear localization and the functional integrity of the Bag6 complex in the cytosol. PMID- 29042516 TI - Across the tree of life, radiation resistance is governed by antioxidant Mn2+, gauged by paramagnetic resonance. AB - Despite concerted functional genomic efforts to understand the complex phenotype of ionizing radiation (IR) resistance, a genome sequence cannot predict whether a cell is IR-resistant or not. Instead, we report that absorption-display electron paramagnetic resonance (EPR) spectroscopy of nonirradiated cells is highly diagnostic of IR survival and repair efficiency of DNA double-strand breaks (DSBs) caused by exposure to gamma radiation across archaea, bacteria, and eukaryotes, including fungi and human cells. IR-resistant cells, which are efficient at DSB repair, contain a high cellular content of manganous ions (Mn2+) in high-symmetry (H) antioxidant complexes with small metabolites (e.g., orthophosphate, peptides), which exhibit narrow EPR signals (small zero-field splitting). In contrast, Mn2+ ions in IR-sensitive cells, which are inefficient at DSB repair, exist largely as low-symmetry (L) complexes with substantially broadened spectra seen with enzymes and strongly chelating ligands. The fraction of cellular Mn2+ present as H-complexes (H-Mn2+), as measured by EPR of live, nonirradiated Mn-replete cells, is now the strongest known gauge of biological IR resistance between and within organisms representing all three domains of life: Antioxidant H-Mn2+ complexes, not antioxidant enzymes (e.g., Mn superoxide dismutase), govern IR survival. As the pool of intracellular metabolites needed to form H-Mn2+ complexes depends on the nutritional status of the cell, we conclude that IR resistance is predominantly a metabolic phenomenon. In a cross kingdom analysis, the vast differences in taxonomic classification, genome size, and radioresistance between cell types studied here support that IR resistance is not controlled by the repertoire of DNA repair and antioxidant enzymes. PMID- 29042517 TI - Control of growth and gut maturation by HoxD genes and the associated lncRNA Haglr. AB - During embryonic development, Hox genes participate in the building of a functional digestive system in metazoans, and genetic conditions involving these genes lead to important, sometimes lethal, growth retardation. Recently, this phenotype was obtained after deletion of Haglr, the Hoxd antisense growth associated long noncoding RNA (lncRNA) located between Hoxd1 and Hoxd3 In this study, we have analyzed the function of Hoxd genes in delayed growth trajectories by looking at several nested targeted deficiencies of the mouse HoxD cluster. Mutant pups were severely stunted during the suckling period, but many recovered after weaning. After comparing seven distinct HoxD alleles, including CRISPR/Cas9 deletions involving Haglr, we identified Hoxd3 as the critical component for the gut to maintain milk-digestive competence. This essential function could be abrogated by the dominant-negative effect of HOXD10 as shown by a genetic rescue approach, thus further illustrating the importance of posterior prevalence in Hox gene function. A role for the lncRNA Haglr in the control of postnatal growth could not be corroborated. PMID- 29042518 TI - Evolutionary genomics of grape (Vitis vinifera ssp. vinifera) domestication. AB - We gathered genomic data from grapes (Vitis vinifera ssp. vinifera), a clonally propagated perennial crop, to address three ongoing mysteries about plant domestication. The first is the duration of domestication; archaeological evidence suggests that domestication occurs over millennia, but genetic evidence indicates that it can occur rapidly. We estimated that our wild and cultivated grape samples diverged ~22,000 years ago and that the cultivated lineage experienced a steady decline in population size (Ne ) thereafter. The long decline may reflect low-intensity management by humans before domestication. The second mystery is the identification of genes that contribute to domestication phenotypes. In cultivated grapes, we identified candidate-selected genes that function in sugar metabolism, flower development, and stress responses. In contrast, candidate-selected genes in the wild sample were limited to abiotic and biotic stress responses. A genomic region of high divergence corresponded to the sex determination region and included a candidate male sterility factor and additional genes with sex-specific expression. The third mystery concerns the cost of domestication. Annual crops accumulate putatively deleterious variants, in part due to strong domestication bottlenecks. The domestication of perennial crops differs from that of annuals in several ways, including the intensity of bottlenecks, and it is not yet clear if they accumulate deleterious variants. We found that grape accessions contained 5.2% more deleterious variants than wild individuals, and these were more often in a heterozygous state. Using forward simulations, we confirm that clonal propagation leads to the accumulation of recessive deleterious mutations but without decreasing fitness. PMID- 29042519 TI - Balanced excitation and inhibition are required for high-capacity, noise-robust neuronal selectivity. AB - Neurons and networks in the cerebral cortex must operate reliably despite multiple sources of noise. To evaluate the impact of both input and output noise, we determine the robustness of single-neuron stimulus selective responses, as well as the robustness of attractor states of networks of neurons performing memory tasks. We find that robustness to output noise requires synaptic connections to be in a balanced regime in which excitation and inhibition are strong and largely cancel each other. We evaluate the conditions required for this regime to exist and determine the properties of networks operating within it. A plausible synaptic plasticity rule for learning that balances weight configurations is presented. Our theory predicts an optimal ratio of the number of excitatory and inhibitory synapses for maximizing the encoding capacity of balanced networks for given statistics of afferent activations. Previous work has shown that balanced networks amplify spatiotemporal variability and account for observed asynchronous irregular states. Here we present a distinct type of balanced network that amplifies small changes in the impinging signals and emerges automatically from learning to perform neuronal and network functions robustly. PMID- 29042520 TI - [Epilepsy and Driving]. AB - In Japan, the Road Traffic Act was amended in 2013, and the revision was enacted in 2014. This revision includes new rules such as the requirement that a driver declare medical conditions on licensing, with a penalty for false statements. There is also a new voluntary notification system that enables doctors to report unlawful drivers. At the same time, the new Criminal Law Act was enacted. This act provides a penalty for causing death or injury to other persons by driving under the influence of specific drugs or diseases, including epilepsy. There is a prison term of up to 15 years for this violation. These new laws are the result of several tragic motor vehicle accidents caused by patients with epilepsy who were unfit to drive, and severe punishments are involved. Japan still requires a longer seizure-free period for licensing of patients with epilepsy (2 or 5 years), as opposed to the shorter periods required by other developed countries (US, 3 to 12 months; EU, 12 months). It is debatable whether harsh punishments are more effective in reducing accidents. Further reevaluation and discussion are needed on this issue because a restrictive policy for handicapped persons should be based on scientific evidence and should not be biased by prejudice and discrimination. PMID- 29042521 TI - [Transition of Children with Epilepsy to Adult Care: Current Status and Challenge]. AB - Thirty percent of the patients consulting a pediatric neurologist have already reached adulthood as patients and their families do not like transfer to the adult clinics; moreover, there are no suitable clinics. Pediatric neurologists find it difficult to examine adult patients with childhood-onset epilepsy as they are unfamiliar with the psychiatric and psychological symptoms manifested in adulthood, and the common diseases of adulthood. On the other hand, adult neurologists have difficulty obtaining a complete picture of the patient's clinical history since childhood, and are unfamiliar with childhood-specific epilepsy syndrome. When it comes to transition, the patient's decision should be prioritized. Transition should be patient-centered, with cornerstones of flexibility, responsiveness, continuity, comprehensiveness, and coordination. For successful transition to occur, there must be psychosocial support, patient education, better medical system organization with inclusion of a transition process, such as transition clinic, increased number of epilepsy-specialized physicians/nurses, and resources such as checklists and programs to aid in transition. PMID- 29042522 TI - [Surgical Pathology of Adulthood Epilepsy]. AB - Epilepsy may be the consequence of a wide range of disorders affecting the brain, including tumors and non-neoplastic lesions. A broad spectrum of structural brain lesions can be observed in epileptogenic brain tissue specimens surgically resected from patients with drug-resistant focal epilepsies. These include hippocampal sclerosis (HS), low-grade epilepsy-associated neuroepithelial tumors (LEAT), malformations of cortical development (MCD), vascular malformations, dual pathology, glial scar, and encephalitis, as well as no lesion. HS, LEAT, and MCD constitute over 75% of all surgical pathologies of epilepsy. International consensus histological classifications of HS and focal cortical dysplasia (FCD) have been proposed by the International League Against Epilepsy (ILAE), based on agreement on the importance of defining a histopathological classification system that has a reliable clinicopathological correlation. These ILAE classifications are likely to facilitate future clinicopathological studies. The validity and usefulness of the ILAE classifications should be further evaluated for future revision for clinicopathologically meaningful classification with better interobserver agreement, particularly for FCD types I and III. Although it is still an emerging field of neuropathology, surgical pathology of epilepsy will likely play an important role in unraveling the pathogenesis and epileptogenesis of structural brain lesions, thereby contributing to the future precision medicine. PMID- 29042523 TI - [Current Status of Epilepsy Surgery in Adults]. AB - Epilepsy surgery is an effective way to control seizures in patients with refractory epilepsy, even in patients in whom drug therapy has not resulted in adequate seizure control. Many studies support the efficacy and safety of resective and non-resective surgeries for the treatment of refractory epilepsy in appropriately selected individuals. However, it is sometimes argued that epilepsy surgery is underutilized despite the evidence and guidelines supporting its use. Among the causes cited for underutilization of this treatment are numerous barriers to epilepsy surgery. Further strategies are needed to increase access to surgery and to improve communication about the effectiveness of this potentially life-changing procedure. In addition, epilepsy surgery is only one part of the multimodal treatment of refractory epilepsy. A comprehensive approach is required to address the medical, surgical, psychosocial, rehabilitation and moral needs of patients with epilepsy in order to improve their quality of life. PMID- 29042524 TI - [Autoimmune and Epilepsy]. AB - The recent discovery of autoimmune antibodies to the neuronal cell surface membrane and extra- or intra-cellular proteins, such as NMDAR and LGI1, shed light on a proposed new etiology of epilepsy, namely, "autoimmune epilepsy". A large part of this entity most likely belongs to a forme fruste of autoimmune (limbic) encephalitis. Seizures are usually subacute in onset and refractory to antiepileptic medications. Patients occasionally manifest multiple seizure semiologies, such as autonomic or faciobrachial dystonic seizures. They may develop other symptoms of autoimmune encephalitis to variable degrees. Clinical diagnosis of autoimmune epilepsy should be considered even before the results of antibody testing, when objective evidence of CNS inflammation, such as abnormal MRI (amygdala/hippocampal enlargement), FDG-PET (hypermetabolism), EEG (bitemporal spikes or subclinical seizure patterns) and/or CSF findings, are present. Early intensive immunotherapy could cure seizures and prevent the full blown clinical manifestation of encephalitis. Some patients present with relatively mild clinical symptoms and/or MRI findings, and can have a smoldering course lasting years. Establishment of the biomarkers of the ongoing CNS inflammation, especially for the smoldering and the suspected autoantibody negative cases, is warranted for tailored immunotherapy for both the subacute and chronic phases of the disease. PMID- 29042525 TI - [Characteristics of Geriatric Epilepsy Can Include Dementia]. AB - Japan has become a "super-aged" society, in which more than 20% of the population is over the age of 65 years. As the incidence rates of both dementia and epilepsy are high in elderly individuals, the prevalence rates of dementia and epilepsy have both increased in recent years. Dementia and epilepsy are often characterized by ambiguous symptoms, with numerous concomitant symptoms observed in these patients. Moreover, many reports indicate that the forgetfulness observed in dementia patients was actually due to the occurrence of epileptic seizures. Because Japan is currently a super-aged society, it is important to understand the characteristics of and relationships between dementia and epilepsy. PMID- 29042526 TI - [Differential Diagnosis of Immune-Mediated Encephalopathies: "Neurological Symptoms of Diffuse Brain Damage": A New Concept]. AB - In recent years, incidence of autoimmune encephalopathies has increased. The diagnosis of the severe form of autoimmune encephalopathy is not difficult; however, milder forms can be misdiagnosed as general encephalopathies. We often treat Hashimoto's encephalopathy, which has diverse clinical symptoms and is often misdiagnosed as a psychosomatic disease. We have found that the neurological findings and symptoms of patients with Hashimoto's encephalopathy are similar to those of psychogenic diseases, such as giveway weakness and atypical sensory disorder. To understand the mechanism underlying these symptoms, we propose a new concept: neurological symptoms of diffuse brain damage. This theory is based on the premise that etiologically, symptoms observed were caused by diffuse, spotty, and shaded brain damage due to autoimmune encephalopathies. We also found similar neurological conditions in patients with anti-ganglionic acetylcholine receptor antibody-related encephalopathy, encephalopathies that developed after injection of the cervical cancer vaccine, and encephalopathies associated with Stiff person syndrome. In conclusion, the clinical features of autoimmune encephalopathy include the "neurological symptoms of diffuse brain damage" as well as the presence of antibodies. We could diagnose autoimmune encephalopathy more easily, using this new diagnostic concept. PMID- 29042527 TI - [Biomarkers for Mood Disorders and a Novel Antidepressant (R)-ketamine]. AB - Depression is often misdiagnosed as major depressive disorder in patients with bipolar disorder. Therapeutic drugs for these two disorders are quite different, but the anesthetic ketamine shows fast-acting antidepressant effects in treatment resistant patients with these disorders. Here, we discuss biomarkers for both disorders, recent findings regarding ketamine, and predictable biomarkers for ketamine's antidepressant actions. PMID- 29042528 TI - [A Case of Ruptured Anterior Communicating Artery Aneurysm with Visual Field Defects and Deteriorating to Severe Vision Loss]. AB - Although Terson's syndrome is a well-known cause of vision loss due to intracerebral aneurysm rupture, optic nerve neuropathy can also occur because of other causes. Here, we report such a case, i.e., a ruptured anterior communicating artery aneurysm accompanied by vision loss and visual field disturbances due to a cause other than Terson's syndrome. A 47-year-old man presented with right superior altitudinal hemianopia. Computed tomography (CT) showed subarachnoid hemorrhage (SAH), and three-dimensional CT angiography revealed an anterior communicating artery aneurysm. Coil embolization was performed. Right visual acuity degenerated to blindness in the acute stage. MRI performed on day 7 post-admission revealed that the aneurysm had swollen and made contact with the right optic disk. On the basis of the patient's clinical course, we believe that the deterioration in his visual acuity could have been due to ischemic optic neuropathy (ION) resulting from SAH, and the subsequent edema and poor blood perfusion may be attributed to spasm. In cases of visual disturbance associated with SAH, as in our case, it is important to perform MRI to evaluate the damage or risk to the optic nerve as soon as possible. (Received December 26, 2016; Accepted June 9, 2017; Published October 1, 2017). PMID- 29042529 TI - Value of Preoperative Indocyanine Green Clearance Test for Predicting Post Hepatectomy Liver Failure in Noncirrhotic Patients. AB - BACKGROUND Liver failure is the most feared complication following hepatectomy. Post-hepatectomy liver failure (PHLF) is closely related to the remnant liver volume, and functional reserve. There are several methods for predicting PHLF prior to liver resection. The indocyanine green (ICG) clearance test was popularized in patients with hepatocellular cancer (HCC). We aim to demonstrate the value of preoperative ICG clearance measurement via pulse spectrophotometer (LIMON(r)) in prediction of PHLF in noncirrhotic patients prior to liver resection. MATERIAL AND METHODS Fifty-three noncirrhotic patients who underwent liver resection due to different pathologies were included. Retrospectively collected clinical data, including the preoperative ICG clearance measurements and remnant liver volumes of the patients, were statistically evaluated according to the PHLF criteria of the International Study Group of Liver Surgery. RESULTS Four (7.5%) patients with PHLF were observed. There was no significant difference between PHLF and non-PHLF groups regarding ICG clearance measurements with cut off values of 5% and 9.5%. CONCLUSIONS The ICG clearance test does not satisfy our expectations in noncirrhotic patients in predicting PHLF. We believe that the ICG clearance test should be reserved for patients with cirrhosis and/or HCC. This test could be an option for noncirrhotic patients with chronic active hepatitis, advanced-grade fatty livers, or for patients who received long-term preoperative chemotherapy, and also for patients who underwent single or multiple sessions of TACE or TARE prior to liver resection. If the routine selection criteria have been fulfilled, there is no further need to perform the ICG clearance test for living liver donors. PMID- 29042530 TI - Hypereosinophilia Secondary to Disseminated Paracoccidioidomycosis. AB - BACKGROUND Paracoccidioidomycosis is an endemic mycosis in Central and South America caused by the thermally dimorphic fungus Paracoccidioides brasiliensis. Despite its self-limited course and usually asymptomatic infection, some patients may present with a systemic illness mimicking multiple conditions and thus question the general state of their immune system. CASE REPORT A 28-year-old male presented to the hospital with fever, dry cough, and non-pruritic rash with no characteristic distribution for the past 10 days. Past medical history revealed that the patient had worked as a farmer three years ago, had abused cocaine paste over the same period, and also had in the last month presented to the hospital for acute appendicitis. Initial laboratory tests revealed hypereosinophilia greater than 10,000 eosinophils/mL. Infection of P. brasiliensis was confirmed by lymph node, skin, and colonoscopy biopsies. After treatment with itraconazole, the patient's eosinophil count returned to normal and his symptoms resolved. CONCLUSIONS Paracoccidioidomycosis may present as a systemic illness with only marked eosinophilia on initial diagnostic tests. Furthermore, in our patient's case, the high degree of eosinophilia may have contributed towards the patient's appendicitis in the weeks preceding the subacute infection. It is possible that the patient's history of working at a farm and abusing cocaine paste may have contributed to the initial colonization by the fungus. PMID- 29042531 TI - Extrafollicular CD4+ T-B interactions are sufficient for inducing autoimmune-like chronic graft-versus-host disease. AB - Chronic graft-versus-host disease (cGVHD) is an autoimmune-like syndrome mediated by pathogenic CD4+ T and B cells, but the function of extrafollicular and germinal center CD4+ T and B interactions in cGVHD pathogenesis remains largely unknown. Here we show that extrafollicular CD4+ T and B interactions are sufficient for inducing cGVHD, while germinal center formation is dispensable. The pathogenesis of cGVHD is associated with the expansion of extrafollicular CD44hiCD62loPSGL-1loCD4+ (PSGL-1loCD4+) T cells. These cells express high levels of ICOS, and the blockade of ICOS/ICOSL interaction prevents their expansion and ameliorates cGVHD. Expansion of PSGL-1loCD4+ T cells is also prevented by BCL6 or Stat3 deficiency in donor CD4+ T cells, with the induction of cGVHD ameliorated by BCL6 deficiency and completely suppressed by Stat3 deficiency in donor CD4+ T cells. These results support that Stat3- and BCL6-dependent extrafollicular CD4+ T and B interactions play critical functions in the pathogenesis of cGVHD.Chronic graft-versus-host disease (cGVHD) is mediated by specific CD4 and B cells, but the relative contribution of extrafollicular and germinal centre (GC) T-B interaction is unclear. Here the authors show that the extrafollicular expansion of a specific CD4 T subset is sufficient for inducing cGVHD while GC is dispensable. PMID- 29042533 TI - A new electrode design for ambipolar injection in organic semiconductors. AB - Organic semiconductors have attracted much attention for low-cost, flexible and human-friendly optoelectronics. However, achieving high electron-injection efficiency is difficult from air-stable electrodes and cannot be equivalent to that of holes. Here, we present a novel concept of electrode composed of a bilayer of tetratetracontane (TTC) and polycrystalline organic semiconductors (pc OSC) covered by a metal layer. Field-effect transistors of single-crystal organic semiconductors with the new electrodes of M/pc-OSC/TTC (M: Ca or Au) show both highly efficient electron and hole injection. Contact resistance for electron injection from Au/pc-OSC/TTC and hole injection from Ca/pc-OSC/TTC are comparable to those for electron injection from Ca and hole injection from Au, respectively. Furthermore, the highest field-effect mobilities of holes (22 cm2 V-1 s-1) and electrons (5.0 cm2 V-1 s-1) are observed in rubrene among field-effect transistors with electrodes so far proposed by employing Ca/pc-OSC/TTC and Au/pc OSC/TTC electrodes for electron and hole injection, respectively.One of technological challenges building organic electronics is efficient injection of electrons at metal-semiconductor interfaces compared to that of holes. The authors show an air-stable electrode design with induced gap states, which support Fermi level pinning and thus ambipolar carrier injection. PMID- 29042532 TI - Three-dimensional context rather than NLS amino acid sequence determines importin alpha subtype specificity for RCC1. AB - Active nuclear import of Ran exchange factor RCC1 is mediated by importin alpha3. This pathway is essential to generate a gradient of RanGTP on chromatin that directs nucleocytoplasmic transport, mitotic spindle assembly and nuclear envelope formation. Here we identify the mechanisms of importin alpha3 selectivity for RCC1. We find this isoform binds RCC1 with one order of magnitude higher affinity than the generic importin alpha1, although the two isoforms share an identical NLS-binding groove. Importin alpha3 uses its greater conformational flexibility to wedge the RCC1 beta-propeller flanking the NLS against its lateral surface, preventing steric clashes with its Armadillo-core. Removing the beta propeller, or inserting a linker between NLS and beta-propeller, disrupts specificity for importin alpha3, demonstrating the structural context rather than NLS sequence determines selectivity for isoform 3. We propose importin alpha3 evolved to recognize topologically complex NLSs that lie next to bulky domains or are masked by quaternary structures.Importin alpha3 facilitates the nuclear transport of the Ran guanine nucleotide exchange factor RCC1. Here the authors reveal the molecular basis for the selectivity of RCC1 for importin alpha3 vs the generic importin alpha1 and discuss the evolution of importin alpha isoforms. PMID- 29042534 TI - The microbiota continuum along the female reproductive tract and its relation to uterine-related diseases. AB - Reports on bacteria detected in maternal fluids during pregnancy are typically associated with adverse consequences, and whether the female reproductive tract harbours distinct microbial communities beyond the vagina has been a matter of debate. Here we systematically sample the microbiota within the female reproductive tract in 110 women of reproductive age, and examine the nature of colonisation by 16S rRNA gene amplicon sequencing and cultivation. We find distinct microbial communities in cervical canal, uterus, fallopian tubes and peritoneal fluid, differing from that of the vagina. The results reflect a microbiota continuum along the female reproductive tract, indicative of a non sterile environment. We also identify microbial taxa and potential functions that correlate with the menstrual cycle or are over-represented in subjects with adenomyosis or infertility due to endometriosis. The study provides insight into the nature of the vagino-uterine microbiome, and suggests that surveying the vaginal or cervical microbiota might be useful for detection of common diseases in the upper reproductive tract.Whether the female reproductive tract harbours distinct microbiomes beyond the vagina has been a matter of debate. Here, the authors show a subject-specific continuity in microbial communities at six sites along the female reproductive tract, indicative of a non-sterile environment. PMID- 29042536 TI - Enhanced generation and anisotropic Coulomb scattering of hot electrons in an ultra-broadband plasmonic nanopatch metasurface. AB - The creation of energetic electrons through plasmon excitation of nanostructures before thermalization has been proposed for a wide number of applications in optical energy conversion and ultrafast nanophotonics. However, the use of "nonthermal" electrons is primarily limited by both a low generation efficiency and their ultrafast decay. We report experimental and theoretical results on the use of broadband plasmonic nanopatch metasurfaces comprising a gold substrate coupled to silver nanocubes that produce large concentrations of hot electrons, which we measure using transient absorption spectroscopy. We find evidence for three subpopulations of nonthermal carriers, which we propose arise from anisotropic electron-electron scattering within sp-bands near the Fermi surface. The bimetallic character of the metasurface strongly impacts the physics, with dissipation occurring primarily in the gold, whereas the quantum process of hot electron generation takes place in both components. Our calculations show that the choice of geometry and materials is crucial for producing strong ultrafast nonthermal electron components.The creation of energetic electrons through plasmon excitation has implications in optical energy conversion and ultrafast nanophotonics. Here, the authors find evidence for three subpopulations of nonthermal carriers which arise from anisotropic electron-electron scattering near the Fermi surface. PMID- 29042535 TI - Mechanism of error-free replication across benzo[a]pyrene stereoisomers by Rev1 DNA polymerase. AB - Benzo[a]pyrene (BP) is a carcinogen in cigarette smoke which, after metabolic activation, can react with the exocyclic N 2 amino group of guanine to generate four stereoisomeric BP-N 2-dG adducts. Rev1 is unique among translesion synthesis DNA polymerases in employing a protein-template-directed mechanism of DNA synthesis opposite undamaged and damaged guanine. Here we report high-resolution structures of yeast Rev1 with three BP-N 2-dG adducts, namely the 10S (+)-trans BP-N 2-dG, 10R (+)-cis-BP-N 2-dG, and 10S ( - )-cis-BP-N 2-dG. Surprisingly, in all three structures, the bulky and hydrophobic BP pyrenyl residue is entirely solvent-exposed in the major groove of the DNA. This is very different from the adduct alignments hitherto observed in free or protein-bound DNA. All complexes are well poised for dCTP insertion. Our structures provide a view of cis-BP-N 2 dG adducts in a DNA polymerase active site, and offer a basis for understanding error-free replication of the BP-derived stereoisomeric guanine adducts.Benzo[a]pyrene (BP) is a carcinogen in cigarette smoke that upon metabolic activation reacts with guanine. Here, the authors present the structures of the translesion DNA synthesis polymerase Rev1 in complex with three of the four possible stereoisomeric BP-N 2 -dG adducts, which gives insights how Rev1 achieves error-free replication. PMID- 29042537 TI - Firefly-mimicking intensive and long-lasting chemiluminescence hydrogels. AB - Most known chemiluminescence (CL) reactions exhibit flash-type light emission. Great efforts have been devoted to the development of CL systems that emit light with high intensity and long-lasting time. However, a long-lasting CL system that can last for hundreds of hours is yet-to-be-demonstrated. Here we show firefly mimicking intensive and long-lasting CL hydrogels consisting of chitosan, CL reagent N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and catalyst Co2+. The light emission is even visible to naked eyes and lasts for over 150 h when the hydrogels are mixed with H2O2. This is attributed to slow-diffusion-controlled heterogeneous catalysis. Co2+ located at the skeleton of the hydrogels as an active site catalyzes the decomposition of slowly diffusing H2O2, followed by the reaction with ABEI to generate intensive and long-lasting CL. This mimics firefly bioluminescence system in terms of intensity, duration time and catalytic characteristic, which is of potential applications in cold light sources, bioassays, biosensors and biological imaging.Great efforts have been devoted to the development of chemiluminescence systems that emit light with high intensity over long periods of time. Here the authors show, firefly-mimicking intensive and long-lasting chemiluminescence hydrogels consisting of chitosan, N-(4-aminobutyl) N-ethylisoluminol (ABEI) and catalyst Co2+. PMID- 29042538 TI - Volcanic suppression of Nile summer flooding triggers revolt and constrains interstate conflict in ancient Egypt. AB - Volcanic eruptions provide tests of human and natural system sensitivity to abrupt shocks because their repeated occurrence allows the identification of systematic relationships in the presence of random variability. Here we show a suppression of Nile summer flooding via the radiative and dynamical impacts of explosive volcanism on the African monsoon, using climate model output, ice-core based volcanic forcing data, Nilometer measurements, and ancient Egyptian writings. We then examine the response of Ptolemaic Egypt (305-30 BCE), one of the best-documented ancient superpowers, to volcanically induced Nile suppression. Eruptions are associated with revolt onset against elite rule, and the cessation of Ptolemaic state warfare with their great rival, the Seleukid Empire. Eruptions are also followed by socioeconomic stress with increased hereditary land sales, and the issuance of priestly decrees to reinforce elite authority. Ptolemaic vulnerability to volcanic eruptions offers a caution for all monsoon-dependent agricultural regions, presently including 70% of world population.The degree to which human societies have responded to past climatic changes remains unclear. Here, using a novel combination of approaches, the authors show how volcanically-induced suppression of Nile summer flooding led to societal unrest in Ptolemaic Egypt (305-30 BCE). PMID- 29042539 TI - Inverse poroelasticity as a fundamental mechanism in biomechanics and mechanobiology. AB - Understanding the mechanisms of deformation of biological materials is important for improved diagnosis and therapy, fundamental investigations in mechanobiology, and applications in tissue engineering. Here we demonstrate the essential role of interstitial fluid mobility in determining the mechanical properties of soft tissues. Opposite to the behavior expected for a poroelastic material, the tissue volume of different collagenous membranes is observed to strongly decrease with tensile loading. Inverse poroelasticity governs monotonic and cyclic responses of soft biomembranes, and induces chemo-mechanical coupling, such that tensile forces are modulated by the chemical potential of the interstitial fluid. Correspondingly, the osmotic pressure varies with mechanical loads, thus providing an effective mechanism for mechanotransduction. Water mobility determines the tissue's ability to adapt to deformation through compaction and dilation of the collagen fiber network. In the near field of defects this mechanism activates the reversible formation of reinforcing collagen structures which effectively avoid propagation of cracks.How soft tissues respond to mechanical load is essential to their biological function. Here, the authors discover that - contrary to predictions of poroelasticity - fluid mobility in collagenous tissues induces drastic volume decrease with tensile loading and pronounced chemo-mechanical coupling. PMID- 29042540 TI - Circuit quantum acoustodynamics with surface acoustic waves. AB - The experimental investigation of quantum devices incorporating mechanical resonators has opened up new frontiers in the study of quantum mechanics at a macroscopic level. It has recently been shown that surface acoustic waves (SAWs) can be piezoelectrically coupled to superconducting qubits, and confined in high quality Fabry-Perot cavities in the quantum regime. Here we present measurements of a device in which a superconducting qubit is coupled to a SAW cavity, realising a surface acoustic version of cavity quantum electrodynamics. We use measurements of the AC Stark shift between the two systems to determine the coupling strength, which is in agreement with a theoretical model. This quantum acoustodynamics architecture may be used to develop new quantum acoustic devices in which quantum information is stored in trapped on-chip acoustic wavepackets, and manipulated in ways that are impossible with purely electromagnetic signals, due to the 105 times slower mechanical waves.In this work, Manenti et al. present measurements of a device in which a tuneable transmon qubit is piezoelectrically coupled to a surface acoustic wave cavity, realising circuit quantum acoustodynamic architecture. This may be used to develop new quantum acoustic devices. PMID- 29042541 TI - Resonant out-of-phase fluorescence microscopy and remote imaging overcome spectral limitations. AB - We present speed out-of-phase imaging after optical modulation (OPIOM), which exploits reversible photoswitchable fluorophores as fluorescent labels and combines optimized periodic illumination with phase-sensitive detection to specifically retrieve the label signal. Speed OPIOM can extract the fluorescence emission from a targeted label in the presence of spectrally interfering fluorophores and autofluorescence. Up to four fluorescent proteins exhibiting a similar green fluorescence have been distinguished in cells either sequentially or in parallel. Speed OPIOM is compatible with imaging biological processes in real time in live cells. Finally speed OPIOM is not limited to microscopy but is relevant for remote imaging as well, in particular, under ambient light. Thus, speed OPIOM has proved to enable fast and quantitative live microscopic and remote-multiplexed fluorescence imaging of biological samples while filtering out noise, interfering fluorophores, as well as ambient light.Generally, fluorescence imaging needs to be done in a dark environment using molecules with spectrally separated emissions. Here, Querard et al. develop a protocol for high-speed imaging and remote sensing of spectrally overlapping reversible photoswitchable fluorophores in ambient light. PMID- 29042543 TI - Quantum sensing of weak radio-frequency signals by pulsed Mollow absorption spectroscopy. AB - Quantum sensors-qubits sensitive to external fields-have become powerful detectors for various small acoustic and electromagnetic fields. A major key to their success have been dynamical decoupling protocols which enhance sensitivity to weak oscillating (AC) signals. Currently, those methods are limited to signal frequencies below a few MHz. Here we harness a quantum-optical effect, the Mollow triplet splitting of a strongly driven two-level system, to overcome this limitation. We microscopically understand this effect as a pulsed dynamical decoupling protocol and find that it enables sensitive detection of fields close to the driven transition. Employing a nitrogen-vacancy center, we detect GHz microwave fields with a signal strength (Rabi frequency) below the current detection limit, which is set by the center's spectral linewidth [Formula: see text]. Pushing detection sensitivity to the much lower 1/T 2 limit, this scheme could enable various applications, most prominently coherent coupling to single phonons and microwave photons.Dynamical decoupling protocols can enhance the sensitivity of quantum sensors but this is limited to signal frequencies below a few MHz. Here, Joas et al. use the Mollow triplet splitting in a nitrogen-vacancy centre to overcome this limitation, enabling sensitive detection of signals in the GHz range. PMID- 29042542 TI - Tyrosine phosphorylation of the GARU E3 ubiquitin ligase promotes gibberellin signalling by preventing GID1 degradation. AB - Gibberellin (GA) is a major hormone for plant growth and development. GA response is derived from the degradation of DELLA repressor proteins after GA-dependent complex formation of the GID1 GA receptor with DELLA. Genistein is a known tyrosine (Tyr) kinase inhibitor and inhibits DELLA degradation. However, the biological role of Tyr phosphorylation on the GA response remains unclear. Here, we demonstrate that GARU (GA receptor RING E3 ubiquitin ligase) mediates ubiquitin-dependent degradation of GID1, and that the TAGK2 plant Tyr-kinase is a target of genistein and inhibits GARU-GID1A interactions by phosphorylation of GARU at Tyr321. Genistein induces degradation of GID1 and accumulation of DELLA. Conversely, Arabidopsis garu mutant and TAGK2-overexpressing plants accelerate GID1 stabilization and DELLA degradation. Under salt stress, GARU suppresses seed germination. We propose that GA response is negatively regulated by GARU dependent GID1 ubiquitination and positively by Tyr phosphorylation of GARU by TAGK2, and genistein inhibits GA signaling by TAGK2 inhibition.Plants respond to gibberellins via GID1-dependent degradation of DELLA proteins. Here, Nemoto et al. show that the gibberellin response is positively regulated by tyrosine phosphorylation of GARU, an E3 ubiquitin ligase that mediates degradation of GID1. PMID- 29042544 TI - Origami-based tunable truss structures for non-volatile mechanical memory operation. AB - Origami has recently received significant interest from the scientific community as a method for designing building blocks to construct metamaterials. However, the primary focus has been placed on their kinematic applications by leveraging the compactness and auxeticity of planar origami platforms. Here, we present volumetric origami cells-specifically triangulated cylindrical origami (TCO)-with tunable stability and stiffness, and demonstrate their feasibility as non volatile mechanical memory storage devices. We show that a pair of TCO cells can develop a double-well potential to store bit information. What makes this origami based approach more appealing is the realization of two-bit mechanical memory, in which two pairs of TCO cells are interconnected and one pair acts as a control for the other pair. By assembling TCO-based truss structures, we experimentally verify the tunable nature of the TCO units and demonstrate the operation of purely mechanical one- and two-bit memory storage prototypes.Origami is a popular method to design building blocks for mechanical metamaterials. Here, the authors assemble a volumetric origami-based structure, predict its axial and rotational movements during folding, and demonstrate the operation of mechanical one- and two-bit memory storage. PMID- 29042545 TI - Gate-controlled reversible rectifying behaviour in tunnel contacted atomically thin MoS2 transistor. AB - Atomically thin two-dimensional semiconducting materials integrated into van der Waals heterostructures have enabled architectures that hold great promise for next generation nanoelectronics. However, challenges still remain to enable their applications as compliant materials for integration in logic devices. Here, we devise a reverted stacking technique to intercalate a wrinkle-free boron nitride tunnel layer between MoS2 channel and source drain electrodes. Vertical tunnelling of electrons therefore makes it possible to suppress the Schottky barriers and Fermi level pinning, leading to homogeneous gate-control of the channel chemical potential across the bandgap edges. The observed features of ambipolar pn to np diode, which can be reversibly gate tuned, paves the way for future logic applications and high performance switches based on atomically thin semiconducting channel.Van der Waals heterostructures of atomically thin materials hold promise for nanoelectronics. Here, the authors demonstrate a reverted stacking fabrication method for heterostructures and devise a vertical tunnel-contacted MoS2 transistor, enabling gate tunable rectification and reversible pn to np diode behaviour. PMID- 29042546 TI - Anomeric memory of the glycosidic bond upon fragmentation and its consequences for carbohydrate sequencing. AB - Deciphering the carbohydrate alphabet is problematic due to its unique complexity among biomolecules. Strikingly, routine sequencing technologies-which are available for proteins and DNA and have revolutionised biology-do not exist for carbohydrates. This lack of structural tools is identified as a crucial bottleneck, limiting the full development of glycosciences and their considerable potential impact for the society. In this context, establishing generic carbohydrate sequencing methods is both a major scientific challenge and a strategic priority. Here we show that a hybrid analytical approach integrating molecular spectroscopy with mass spectrometry provides an adequate metric to resolve carbohydrate isomerisms, i.e the monosaccharide content, anomeric configuration, regiochemistry and stereochemistry of the glycosidic linkage. On the basis of the spectroscopic discrimination of MS fragments, we report the unexpected demonstration of the anomeric memory of the glycosidic bond upon fragmentation. This remarkable property is applied to de novo sequencing of underivatized oligosaccharides.Establishing generic carbohydrate sequencing methods is both a major scientific challenge and a strategic priority. Here the authors show a hybrid analytical approach integrating molecular spectroscopy and mass spectrometry to resolve carbohydrate isomerism, anomeric configuration, regiochemistry and stereochemistry. PMID- 29042547 TI - Full-gap superconductivity in spin-polarised surface states of topological semimetal beta-PdBi2. AB - A bulk superconductor possessing a topological surface state at the Fermi level is a promising system to realise long-sought topological superconductivity. Although several candidate materials have been proposed, experimental demonstrations concurrently exploring spin textures and superconductivity at the surface have remained elusive. Here we perform spectroscopic-imaging scanning tunnelling microscopy on the centrosymmetric superconductor beta-PdBi2 that hosts a topological surface state. By combining first-principles electronic-structure calculations and quasiparticle interference experiments, we determine the spin textures at the surface, and show not only the topological surface state but also all other surface bands exhibit spin polarisations parallel to the surface. We find that the superconducting gap fully opens in all the spin-polarised surface states. This behaviour is consistent with a possible spin-triplet order parameter expected for such in-plane spin textures, but the observed superconducting gap amplitude is comparable to that of the bulk, suggesting that the spin-singlet component is predominant in beta-PdBi2.Although several materials have been proposed as topological superconductors, spin textures and superconductivity at the surface remain elusive. Here, Iwaya et al. determine the spin textures at the surface of a superconductor beta-PdBi2 and find the superconducting gap opening in all spin-polarised surface states. PMID- 29042549 TI - Mechanoresponsive lipid-protein nanoglobules facilitate reversible fibre formation in velvet worm slime. AB - Velvet worms eject a fluid capture slime that can be mechanically drawn into stiff biopolymeric fibres. Remarkably, these fibres can be dissolved by extended exposure to water, and new regenerated fibres can be drawn from the dissolved fibre solution-indicating a fully recyclable process. Here, we perform a multiscale structural and compositional investigation of this reversible fabrication process with the velvet worm Euperipatoides rowelli, revealing that biopolymeric fibre assembly is facilitated via mono-disperse lipid-protein nanoglobules. Shear forces cause nanoglobules to self-assemble into nano- and microfibrils, which can be drawn into macroscopic fibres with a protein-enriched core and lipid-rich coating. Fibre dissolution in water leads to re-formation of nanoglobules, suggesting that this dynamic supramolecular assembly of mechanoresponsive protein-building blocks is mediated by reversible non-covalent interactions. These findings offer important mechanistic insights into the role of mechanochemical processes in bio-fibre formation, providing potential avenues for sustainable material fabrication processes.Velvet worms expel a fluid slime that, under shear force, forms stiff fibres that can be dissolved and then regenerated. Here, the authors reveal that the recyclability of these biopolymers relies on mechanoresponsive lipid-protein nanoglobules in the slime that reversibly self-assemble into fibrils. PMID- 29042550 TI - Correspondence: Response of a gravimeter to an instantaneous step in gravity. PMID- 29042548 TI - Human mesenchymal stromal cells transplanted into mice stimulate renal tubular cells and enhance mitochondrial function. AB - Mesenchymal stromal cells (MSCs) are renoprotective and drive regeneration following injury, although cellular targets of such an effect are still ill defined. Here, we show that human umbilical cord (UC)-MSCs transplanted into mice stimulate tubular cells to regain mitochondrial mass and function, associated with enhanced microtubule-rich projections that appear to mediate mitochondrial trafficking to create a reparative dialogue among adjacent tubular cells. Treatment with UC-MSCs in mice with cisplatin-induced acute kidney injury (AKI) regulates mitochondrial biogenesis in proximal tubuli by enhancing PGC1alpha expression, NAD+ biosynthesis and Sirtuin 3 (SIRT3) activity, thus fostering antioxidant defenses and ATP production. The functional role of SIRT3 in tubular recovery is highlighted by data that in SIRT3-deficient mice with AKI, UC-MSC treatment fails to induce renoprotection. These data document a previously unrecognized mechanism through which UC-MSCs facilitate renal repair, so as to induce global metabolic reprogramming of damaged tubular cells to sustain energy supply.Mesenchymal stromal cells drive renal regeneration following injury. Here, the authors show that human mesenchymal stromal cells, when transplanted into mice with acute kidney injury, stimulate renal tubular cell growth and enhance mitochondrial function via SIRT3. PMID- 29042552 TI - Mass spectrometry sequencing of long digital polymers facilitated by programmed inter-byte fragmentation. AB - In the context of data storage miniaturization, it was recently shown that digital information can be stored in the monomer sequences of non-natural macromolecules. However, the sequencing of such digital polymers is currently limited to short chains. Here, we report that intact multi-byte digital polymers can be sequenced in a moderate resolution mass spectrometer and that full sequence coverage can be attained without requiring pre-analysis digestion or the help of sequence databases. In order to do so, the polymers are designed to undergo controlled fragmentations in collision-induced dissociation conditions. Each byte of the sequence is labeled by an identification tag and a weak alkoxyamine group is placed between 2 bytes. As a consequence of this design, the NO-C bonds break first upon collisional activation, thus leading to a pattern of mass tag-shifted intact bytes. Afterwards, each byte is individually sequenced in pseudo-MS3 conditions and the whole sequence is found.Digital information can be stored in monomer sequences of non-natural macromolecules, but only short chains can be read. Here the authors show long multi-byte digital polymers sequenced in a moderate resolution mass spectrometer. Full sequence coverage can be attained without pre-analysis digestion or the help from sequence databases. PMID- 29042551 TI - Integrating evolutionary and regulatory information with a multispecies approach implicates genes and pathways in obsessive-compulsive disorder. AB - Obsessive-compulsive disorder is a severe psychiatric disorder linked to abnormalities in glutamate signaling and the cortico-striatal circuit. We sequenced coding and regulatory elements for 608 genes potentially involved in obsessive-compulsive disorder in human, dog, and mouse. Using a new method that prioritizes likely functional variants, we compared 592 cases to 560 controls and found four strongly associated genes, validated in a larger cohort. NRXN1 and HTR2A are enriched for coding variants altering postsynaptic protein-binding domains. CTTNBP2 (synapse maintenance) and REEP3 (vesicle trafficking) are enriched for regulatory variants, of which at least six (35%) alter transcription factor-DNA binding in neuroblastoma cells. NRXN1 achieves genome-wide significance (p = 6.37 * 10-11) when we include 33,370 population-matched controls. Our findings suggest synaptic adhesion as a key component in compulsive behaviors, and show that targeted sequencing plus functional annotation can identify potentially causative variants, even when genomic data are limited.Obsessive-compulsive disorder (OCD) is a neuropsychiatric disorder with symptoms including intrusive thoughts and time-consuming repetitive behaviors. Here Noh and colleagues identify genes enriched for functional variants associated with increased risk of OCD. PMID- 29042553 TI - Molecular analysis of high-grade serous ovarian carcinoma with and without associated serous tubal intra-epithelial carcinoma. AB - Many high-grade serous carcinomas (HGSCs) of the pelvis are thought to originate in the distal portion of the fallopian tube. Serous tubal intra-epithelial carcinoma (STIC) lesions are the putative precursor to HGSC and identifiable in ~ 50% of advanced stage cases. To better understand the molecular etiology of HGSCs, we report a multi-center integrated genomic analysis of advanced stage tumors with and without STIC lesions and normal tissues. The most significant focal DNA SCNAs were shared between cases with and without STIC lesions. The RNA sequence and the miRNA data did not identify any clear separation between cases with and without STIC lesions. HGSCs had molecular profiles more similar to normal fallopian tube epithelium than ovarian surface epithelium or peritoneum. The data suggest that the molecular features of HGSCs with and without associated STIC lesions are mostly shared, indicating a common biologic origin, likely to be the distal fallopian tube among all cases.High-grade serous carcinomas (HGSCs) are associated with precursor lesions (STICs) in the fallopian epithelium in only half of the cases. Here the authors report the molecular analysis of HGSCs with and without associated STICs and show similar profiles supporting a common origin for all HGSCs. PMID- 29042554 TI - Glycaemic control boosts glucosylated nanocarrier crossing the BBB into the brain. AB - Recently, nanocarriers that transport bioactive substances to a target site in the body have attracted considerable attention and undergone rapid progression in terms of the state of the art. However, few nanocarriers can enter the brain via a systemic route through the blood-brain barrier (BBB) to efficiently reach neurons. Here we prepare a self-assembled supramolecular nanocarrier with a surface featuring properly configured glucose. The BBB crossing and brain accumulation of this nanocarrier are boosted by the rapid glycaemic increase after fasting and by the putative phenomenon of the highly expressed glucose transporter-1 (GLUT1) in brain capillary endothelial cells migrating from the luminal to the abluminal plasma membrane. The precisely controlled glucose density on the surface of the nanocarrier enables the regulation of its distribution within the brain, and thus is successfully optimized to increase the number of nanocarriers accumulating in neurons.There are only a few examples of nanocarriers that can transport bioactive substances across the blood-brain barrier. Here the authors show that by rapid glycaemic increase the accumulation of a glucosylated nanocarrier in the brain can be controlled. PMID- 29042555 TI - Super-formable pure magnesium at room temperature. AB - Magnesium, the lightest structural metal, is difficult to form at room temperature due to an insufficient number of deformation modes imposed by its hexagonal structure and a strong texture developed during thermomechanical processes. Although appropriate alloying additions can weaken the texture, formability improvement is limited because alloying additions do not fundamentally alter deformation modes. Here we show that magnesium can become super-formable at room temperature without alloying. Despite possessing a strong texture, magnesium can be cold rolled to a strain at least eight times that possible in conventional processing. The resultant cold-rolled sheet can be further formed without cracking due to grain size reduction to the order of one micron and inter-granular mechanisms becoming dominant, rather than the usual slip and twinning. These findings provide a pathway for developing highly formable products from magnesium and other hexagonal metals that are traditionally difficult to form at room temperature.Replacing steel or aluminium vehicle parts with magnesium would result in reduced emissions, but shaping magnesium without cracking remains challenging. Here, the authors successfully extrude and roll textured magnesium into ductile foil at low temperatures by activating intra-granular mechanisms. PMID- 29042556 TI - Nanoscale control of competing interactions and geometrical frustration in a dipolar trident lattice. AB - Geometrical frustration occurs when entities in a system, subject to given lattice constraints, are hindered to simultaneously minimize their local interactions. In magnetism, systems incorporating geometrical frustration are fascinating, as their behavior is not only hard to predict, but also leads to the emergence of exotic states of matter. Here, we provide a first look into an artificial frustrated system, the dipolar trident lattice, where the balance of competing interactions between nearest-neighbor magnetic moments can be directly controlled, thus allowing versatile tuning of geometrical frustration and manipulation of ground state configurations. Our findings not only provide the basis for future studies on the low-temperature physics of the dipolar trident lattice, but also demonstrate how this frustration-by-design concept can deliver magnetically frustrated metamaterials.Artificial magnetic nanostructures enable the study of competing frustrated interactions with more control over the system parameters than is possible in magnetic materials. Farhan et al. present a two dimensional lattice geometry where the frustration can be controlled by tuning the unit cell parameters. PMID- 29042557 TI - Mechanocaloric effects in superionic thin films from atomistic simulations. AB - Solid-state cooling is an energy-efficient and scalable refrigeration technology that exploits the adiabatic variation of a crystalline order parameter under an external field (electric, magnetic, or mechanic). The mechanocaloric effect bears one of the greatest cooling potentials in terms of energy efficiency owing to its large available latent heat. Here we show that giant mechanocaloric effects occur in thin films of well-known families of fast-ion conductors, namely Li-rich (Li3OCl) and type-I (AgI), an abundant class of materials that routinely are employed in electrochemistry cells. Our simulations reveal that at room temperature AgI undergoes an adiabatic temperature shift of 38 K under a biaxial stress of 1 GPa. Likewise, Li3OCl displays a cooling capacity of 9 K under similar mechanical conditions although at a considerably higher temperature. We also show that ionic vacancies have a detrimental effect on the cooling performance of superionic thin films. Our findings should motivate experimental mechanocaloric searches in a wide variety of already known superionic materials.Mechanocaloric effects are a promising path towards solid-state cooling. Here the authors perform atomistic simulations on the well-known fast ion conductor silver iodide and computationally predict a sizeable mechanocaloric effect under biaxial strain. PMID- 29042558 TI - Remote light-controlled intracellular target recognition by photochromic fluorescent glycoprobes. AB - Development of powerful fluorescence imaging probes and techniques sets the basis for the spatiotemporal tracking of cells at different physiological and pathological stages. While current imaging approaches rely on passive probe analyte interactions, here we develop photochromic fluorescent glycoprobes capable of remote light-controlled intracellular target recognition. Conjugation between a fluorophore and spiropyran produces the photochromic probe, which is subsequently equipped with a glycoligand "antenna" to actively localize a target cell expressing a selective receptor. We demonstrate that the amphiphilic glycoprobes that form micelles in water can selectively enter the target cell to operate photochromic cycling as controlled by alternate UV/Vis irradiations. We further show that remote light conversion of the photochromic probe from one isomeric state to the other activates its reactivity toward a target intracellular analyte, producing locked fluorescence that is no longer photoisomerizable. We envision that this research may spur the use of photochromism for the development of bioimaging probes.Fluorescence sensing in biological environments is prone to background signal interference. Here the authors design a photochromic fluorescent glycoprobe for light-controlled photo switchable cell imaging and photo-activated target recognition, resulting in an increased sensing precision. PMID- 29042559 TI - Growth mechanism of strongly emitting CH3NH3PbBr3 perovskite nanocrystals with a tunable bandgap. AB - Metal halide perovskite nanocrystals are promising materials for a diverse range of applications, such as light-emitting devices and photodetectors. We demonstrate the bandgap tunability of strongly emitting CH3NH3PbBr3 nanocrystals synthesized at both room and elevated (60 degrees C) temperature through the variation of the precursor and ligand concentrations. We discuss in detail the role of two ligands, oleylamine and oleic acid, in terms of the coordination of the lead precursors and the nanocrystal surface. The growth mechanism of nanocrystals is elucidated by combining the experimental results with the principles of nucleation/growth models. The proposed formation mechanism of perovskite nanocrystals will be helpful for further studies in this field and can be used as a guide to improve the synthetic methods in the future.The development of perovskite nanocrystals is limited by poor mechanistic understanding of their growth. Here, the authors systematically study the ligand-assisted reprecipitation synthesis of CH3NH3PbBr3 nanocrystals, revealing the effect of precursor and ligand concentrations on bandgap tunability. PMID- 29042560 TI - Mitigating oxygen loss to improve the cycling performance of high capacity cation disordered cathode materials. AB - Recent progress in the understanding of percolation theory points to cation disordered lithium-excess transition metal oxides as high-capacity lithium-ion cathode materials. Nevertheless, the oxygen redox processes required for these materials to deliver high capacity can trigger oxygen loss, which leads to the formation of resistive surface layers on the cathode particles. We demonstrate here that, somewhat surprisingly, fluorine can be incorporated into the bulk of disordered lithium nickel titanium molybdenum oxides using a standard solid-state method to increase the nickel content, and that this compositional modification is very effective in reducing oxygen loss, improving energy density, average voltage, and rate performance. We argue that the valence reduction on the anion site, offered by fluorine incorporation, opens up significant opportunities for the design of high-capacity cation-disordered cathode materials.The performance of lithium-excess cation-disordered oxides as cathode materials relies on the extent to which the oxygen loss during cycling is mitigated. Here, the authors show that incorporating fluorine is an effective strategy which substantially improves the cycling stability of such a material. PMID- 29042561 TI - AUNIP/C1orf135 directs DNA double-strand breaks towards the homologous recombination repair pathway. AB - DNA double-strand breaks (DSBs) are mainly repaired by either homologous recombination (HR) or non-homologous end-joining (NHEJ). Here, we identify AUNIP/C1orf135, a largely uncharacterized protein, as a key determinant of DSB repair pathway choice. AUNIP physically interacts with CtIP and is required for efficient CtIP accumulation at DSBs. AUNIP possesses intrinsic DNA-binding ability with a strong preference for DNA substrates that mimic structures generated at stalled replication forks. This ability to bind DNA is necessary for the recruitment of AUNIP and its binding partner CtIP to DSBs, which in turn drives CtIP-dependent DNA-end resection and HR repair. Accordingly, loss of AUNIP or ablation of its ability to bind to DNA results in cell hypersensitivity toward a variety of DSB-inducing agents, particularly those that induce replication associated DSBs. Our findings provide new insights into the molecular mechanism by which DSBs are recognized and channeled to the HR repair pathway.DNA double strand breaks can be repaired by homology-independent or homology-directed mechanisms. The choice between these pathways is a key event for genomic stability maintenance. Here the authors identify and characterize AUNIP, as a factor involved in tilting the balance towards homology repair. PMID- 29042563 TI - Erratum: A novel humanized mouse lacking murine p450 oxidoreductase for studying human drug metabolism. AB - An incorrect version of the Supplementary Information was inadvertently published with this Article where the wrong file was included. The HTML has been updated to include the correct version of the Supplementary Information. PMID- 29042562 TI - Cis P-tau is induced in clinical and preclinical brain injury and contributes to post-injury sequelae. AB - Traumatic brain injury (TBI) is characterized by acute neurological dysfunction and associated with the development of chronic traumatic encephalopathy (CTE) and Alzheimer's disease. We previously showed that cis phosphorylated tau (cis P tau), but not the trans form, contributes to tau pathology and functional impairment in an animal model of severe TBI. Here we found that in human samples obtained post TBI due to a variety of causes, cis P-tau is induced in cortical axons and cerebrospinal fluid and positively correlates with axonal injury and clinical outcome. Using mouse models of severe or repetitive TBI, we showed that cis P-tau elimination with a specific neutralizing antibody administered immediately or at delayed time points after injury, attenuates the development of neuropathology and brain dysfunction during acute and chronic phases including CTE-like pathology and dysfunction after repetitive TBI. Thus, cis P-tau contributes to short-term and long-term sequelae after TBI, but is effectively neutralized by cis antibody treatment.Induction of the cis form of phosphorylated tau (cis P-tau) has previously been shown to occur in animal models of traumatic brain injury (TBI), and blocking this form of tau using antibody was beneficial in a rodent model of severe TBI. Here the authors show that cis P-tau induction is a feature of several different forms of TBI in humans, and that administration of cis P-tau targeting antibody to rodents reduces or delays pathological features of TBI. PMID- 29042564 TI - Real-time tracking of metal nucleation via local perturbation of hydration layers. AB - The real-time visualization of stochastic nucleation events at electrode surfaces is one of the most complex challenges in electrochemical phase formation. The early stages of metal deposition on foreign substrates are characterized by a highly dynamic process in which nanoparticles nucleate and dissolve prior to reaching a critical size for deposition and growth. Here, high-speed non-contact lateral molecular force microscopy employing vertically oriented probes is utilized to explore the evolution of hydration layers at electrode surfaces with the unprecedented spatiotemporal resolution, and extremely low probe-surface interaction forces required to avoid disruption or shielding the critical nucleus formation. To the best of our knowledge, stochastic nucleation events of nanoscale copper deposits are visualized in real time for the first time and a highly dynamic topographic environment prior to the formation of critical nuclei is unveiled, featuring formation/re-dissolution of nuclei, two-dimensional aggregation and nuclei growth.Electrochemical deposition is important for industrial processes however, tracking the early stages of metallic phase nucleation is challenging. Here, the authors visualize the birth and growth of metal nuclei at electrode surfaces in real time via high-speed non-contact lateral molecular force microscopy. PMID- 29042565 TI - Topological quantum phase transition from mirror to time reversal symmetry protected topological insulator. AB - Topological insulators constitute a new phase of matter protected by symmetries. Time-reversal symmetry protects strong topological insulators of the Z2 class, which possess an odd number of metallic surface states with dispersion of a Dirac cone. Topological crystalline insulators are merely protected by individual crystal symmetries and exist for an even number of Dirac cones. Here, we demonstrate that Bi-doping of Pb1-x Sn x Se (111) epilayers induces a quantum phase transition from a topological crystalline insulator to a Z2 topological insulator. This occurs because Bi-doping lifts the fourfold valley degeneracy and induces a gap at [Formula: see text], while the three Dirac cones at the [Formula: see text] points of the surface Brillouin zone remain intact. We interpret this new phase transition as caused by a lattice distortion. Our findings extend the topological phase diagram enormously and make strong topological insulators switchable by distortions or electric fields.Transitions between topological phases of matter protected by different symmetries remain rare. Here, Mandal et al. report a quantum phase transition from a topological crystalline insulator to a Z2 topological insulator by doping Bi into Pb1-x Sn x Se (111) thin films. PMID- 29042566 TI - Anomalous quantization trajectory and parity anomaly in Co cluster decorated BiSbTeSe2 nanodevices. AB - Dirac Fermions with different helicities exist on the top and bottom surfaces of topological insulators, offering a rare opportunity to break the degeneracy protected by the no-go theorem. Through the application of Co clusters, quantum Hall plateaus were modulated for the topological insulator BiSbTeSe2, allowing an optimized surface transport. Here, using renormalization group flow diagrams, we show the extraction of two sets of converging points in the conductivity tensor space, revealing that the top surface exhibits an anomalous quantization trajectory, while the bottom surface retains the 1/2 quantization. Co clusters are believed to induce a sizeable Zeeman gap ( > 4.8 meV) through antiferromagnetic exchange coupling, which delays the Landau level hybridization on the top surface for a moderate magnetic field. A quasi-half-integer plateau also appears at -7.2 Tesla. This allows us to study the interesting physics of parity anomaly, and paves the way for further studies simulating exotic particles in condensed matter physics.The topological surface states usually appear in pairs in a topological insulator, with one on the top surface and the other on the bottom surface. Here, Zhang et al. utilize Co cluster to induce a Zeeman gap on one surface through antiferromagnetic exchange coupling, and observe a quasi half-integer plateau, suggesting the parity anomaly of Dirac fermions. PMID- 29042568 TI - Combined Microscopy, Calorimetry and X-ray Scattering Study of Fluorinated Dimesogens. AB - The material FDO11DFCB3 (compound 2 in this work) remains the only example of a liquid-crystalline material to exhibit a phase transition from the heliconical twist-bend phase into a lamellar smectic A mesophase, additionally this material exhibits a previously unidentified mesophase. We have prepared and characterised several homologues of this compound, with each material subjected to an in-depth analysis by optical microscopy, calorimetry and small angle X-ray scattering studies. Despite FDO11DFCB3 being similar in chemical structure to the novel materials presented herein its liquid-crystalline behaviour is rather different, indicating an unexpected sensitivity of the twist-bend phase to molecular structure. PMID- 29042567 TI - Mapping the ultrafast flow of harvested solar energy in living photosynthetic cells. AB - Photosynthesis transfers energy efficiently through a series of antenna complexes to the reaction center where charge separation occurs. Energy transfer in vivo is primarily monitored by measuring fluorescence signals from the small fraction of excitations that fail to result in charge separation. Here, we use two dimensional electronic spectroscopy to follow the entire energy transfer process in a thriving culture of the purple bacteria, Rhodobacter sphaeroides. By removing contributions from scattered light, we extract the dynamics of energy transfer through the dense network of antenna complexes and into the reaction center. Simulations demonstrate that these dynamics constrain the membrane organization into small pools of core antenna complexes that rapidly trap energy absorbed by surrounding peripheral antenna complexes. The rapid trapping and limited back transfer of these excitations lead to transfer efficiencies of 83% and a small functional light-harvesting unit.During photosynthesis, energy is transferred from photosynthetic antenna to reaction centers via ultrafast energy transfer. Here the authors track energy transfer in photosynthetic bacteria using two-dimensional electronic spectroscopy and show that these transfer dynamics constrain antenna complex organization. PMID- 29042569 TI - Switching behavior of droplets crossing nodes on a fiber network. AB - Lately, curious structures have been erected in arid regions: they are large nets able to catch water from fog. Tiny droplets condense on the mesh and are collected on the bottom of it. This innovative technology is crucial to obtain drinkable water in these inhospitable areas. Many studies aim to understand the behavior of droplets trapped on this entanglement of fibers. However, the motion of a droplet sliding on a network of inclined fibers and encountering several crossings when going down remains an open question. Here, we look at the path chosen by such a drop and, especially, we analyze its behavior at the different nodes of the array. We show that droplets may change from one fiber to another one depending on the slope and the diameter of these fibers. We prove that we can force a droplet to follow a specific path simply by carefully designing the fiber mesh. These findings are expected to provide a very convenient way to manipulate small droplets in applications from microfluidics to fog harvesting. PMID- 29042570 TI - Fan-out Estimation in Spin-based Quantum Computer Scale-up. AB - Solid-state spin-based qubits offer good prospects for scaling based on their long coherence times and nexus to large-scale electronic scale-up technologies. However, high-threshold quantum error correction requires a two-dimensional qubit array operating in parallel, posing significant challenges in fabrication and control. While architectures incorporating distributed quantum control meet this challenge head-on, most designs rely on individual control and readout of all qubits with high gate densities. We analysed the fan-out routing overhead of a dedicated control line architecture, basing the analysis on a generalised solid state spin qubit platform parameterised to encompass Coulomb confined (e.g. donor based spin qubits) or electrostatically confined (e.g. quantum dot based spin qubits) implementations. The spatial scalability under this model is estimated using standard electronic routing methods and present-day fabrication constraints. Based on reasonable assumptions for qubit control and readout we estimate 102-105 physical qubits, depending on the quantum interconnect implementation, can be integrated and fanned-out independently. Assuming relatively long control-free interconnects the scalability can be extended. Ultimately, the universal quantum computation may necessitate a much higher number of integrated qubits, indicating that higher dimensional electronics fabrication and/or multiplexed distributed control and readout schemes may be the preferredstrategy for large-scale implementation. PMID- 29042571 TI - A Novel Technique for Accelerated Culture of Murine Mesenchymal Stem Cells that Allows for Sustained Multipotency. AB - Bone marrow derived mesenchymal stem cells (MSCs) are regularly utilized for translational therapeutic strategies including cell therapy, tissue engineering, and regenerative medicine and are frequently used in preclinical mouse models for both mechanistic studies and screening of new cell based therapies. Current methods to culture murine MSCs (mMSCs) select for rapidly dividing colonies and require long-term expansion. These methods thus require months of culture to generate sufficient cell numbers for feasibility studies in a lab setting and the cell populations often have reduced proliferation and differentiation potential, or have become immortalized cells. Here we describe a simple and reproducible method to generate mMSCs by utilizing hypoxia and basic fibroblast growth factor supplementation. Cells produced using these conditions were generated 2.8 times faster than under traditional methods and the mMSCs showed decreased senescence and maintained their multipotency and differentiation potential until passage 11 and beyond. Our method for mMSC isolation and expansion will significantly improve the utility of this critical cell source in pre-clinical studies for the investigation of MSC mechanisms, therapies, and cell manufacturing strategies. PMID- 29042573 TI - Efficient induction of comprehensive immune responses to control pathogenic E. coli by clay nano-adjuvant with the moderate size and surface charge. AB - In recent decades, diseases caused by pathogenic Escherichia coli (E. coli), enterohaemorrhagic E. coli (EHEC) O26 have been increasingly reported worldwide, which are as severe as those caused by EHEC strain O157:H7 and require effective intervention strategies. Herein, we report the application of clay nanoparticles, i.e. hectorites as effective nano-adjuvants for vaccination against EHEC O26 colonization. We show that medium size HEC (hectorite, around 73~77 nm diameter) is able to induce efficient humoral and cellular immune responses against EHEC antigen - intimin beta (IB), which are significantly higher than those triggered by commercially used adjuvants - QuilA and Alum. We also demonstrate that mice immunized with IB adjuvanted with HEC nanoparticles elicit sufficient secretion of mucosal IgA, capable of providing effective protection against EHEC O26 binding to ruminant and human cells. In addition, we demonstrate for the first time that hectorites are able to initiate maturation of RAW 264.7 macrophages, inducing expression of co-stimulatory cytokines at a low nanoparticle concentration (10 MUg/mL). Together these data strongly suggest that hectorite with optimized size is a highly efficient vaccine nano-adjuvant. PMID- 29042572 TI - Diagonal Earlobe Crease is a Visible Sign for Cerebral Small Vessel Disease and Amyloid-beta. AB - We investigated the frequency and clinical significance of diagonal earlobe crease (DELC) in cognitively impaired patients using imaging biomarkers, such as white matter hyperintensities (WMH) on MRI and amyloid-beta (Abeta) PET. A total of 471 cognitively impaired patients and 243 cognitively normal (CN) individuals were included in this study. Compared with CN individuals, cognitively impaired patients had a greater frequency of DELC (OR 1.6, 95% CI 1.1-2.2, P = 0.007). This relationship was more prominent in patients with dementia (OR 1.8, 95% CI 1.2-2.7, P = 0.002) and subcortical vascular cognitive impairment (OR 2.4, 95% CI 1.6-3.6, P < 0.001). Compared with Abeta-negative cognitively impaired patients with minimal WMH, Abeta-positive patients with moderate to severe WMH were significantly more likely to exhibit DELC (OR 7.3, 95% CI 3.4-16.0, P < 0.001). We suggest that DELC can serve as a useful supportive sign, not only for the presence of cognitive impairment, but also for cerebral small vessel disease (CSVD) and Abeta-positivity. The relationship between DELC and Abeta-positivity might be explained by the causative role of CSVD in Abeta accumulation. PMID- 29042574 TI - Size Variation under Domestication: Conservatism in the inner ear shape of wolves, dogs and dingoes. AB - A broad sample of wolves, dingoes, and domesticated dogs of different kinds and time periods was used to identify changes in size and shape of the organs of balance and hearing related to domestication and to evaluate the potential utility of uncovered patterns as markers of domestication. Using geometric morphometrics coupled with non-invasive imaging and three-dimensional reconstructions, we exposed and compared complex structures that remain largely conserved. There is no statistically significant difference in the levels of shape variation between prehistoric and modern dogs. Shape variance is slightly higher for the different components of the inner ear in modern dogs than in wolves, but these differences are not significant. Wolves express a significantly greater level of variance in the angle between the lateral and the posterior canal than domestic dog breeds. Wolves have smaller levels of size variation than dogs. In terms of the shape of the semicircular canals, dingoes reflect the mean shape in the context of variation in the sample. This mirrors the condition of feral forms in other organs, in which there is an incomplete return to the characteristics of the ancestor. In general, morphological diversity or disparity in the inner ear is generated by scaling. PMID- 29042575 TI - Role of the Qinghai-Tibetan Plateau uplift in the Northern Hemisphere disjunction: evidence from two herbaceous genera of Rubiaceae. AB - To assess the role of the Qinghai-Tibetan Plateau uplift in shaping the intercontinental disjunction in Northern Hemisphere, we analyzed the origin and diversification within a geological timeframe for two relict herbaceous genera, Theligonum and Kelloggia (Rubiaceae). Phylogenetic relationships within and between Theligonum and Kelloggia as well as their relatives were inferred using five chloroplast markers with parsimony, Bayesian and maximum-likelihood approaches. Migration routes and evolution of these taxa were reconstructed using Bayesian relaxed molecular clock and ancestral area reconstruction. Our results suggest the monophyly of each Theligonum and Kelloggia. Eastern Asian and North American species of Kelloggia diverged at ca.18.52 Mya and the Mediterranean species of Theligonum diverged from eastern Asian taxa at ca.13.73 Mya. Both Kelloggia and Theligonum are Tethyan flora relicts, and their ancestors might have been occurred in warm tropical to subtropical environments along the Tethys coast. The Qinghai-Tibetan Plateau separated the eastern and western Tethyan area may contribute significantly to the disjunct distributions of Theligonum, and the North Atlantic migration appears to be the most likely pathway of expansion of Kelloggia to North America. Our results highlight the importance role of the QTP uplift together with corresponding geological and climatic events in shaping biodiversity and biogeographic distribution in the Northern Hemisphere. PMID- 29042576 TI - Knot Energy, Complexity, and Mobility of Knotted Polymers. AB - The Coulomb energy E C is defined by the energy required to charge a conductive object and scales inversely to the self-capacity C, a basic measure of object size and shape. It is known that C is minimized for a sphere for all objects having the same volume, and that C increases as the symmetry of an object is reduced at fixed volume. Mathematically similar energy functionals have been related to the average knot crossing number , a natural measure of knot complexity and, correspondingly, we find E C to be directly related to of knotted DNA. To establish this relation, we employ molecular dynamics simulations to generate knotted polymeric configurations having different length and stiffness, and minimum knot crossing number values m for a wide class of knot types relevant to the real DNA. We then compute E C for all these knotted polymers using the program ZENO and find that the average Coulomb energy is directly proportional to . Finally, we calculate estimates of the ratio of the hydrodynamic radius, radius of gyration, and the intrinsic viscosity of semi flexible knotted polymers in comparison to the linear polymeric chains since these ratios should be useful in characterizing knotted polymers experimentally. PMID- 29042577 TI - Dual-source Computed Tomography for Evaluating Pulmonary Artery and Aorta in Pediatric Patients with Single Ventricle. AB - To explore the accuracy of main pulmonary artery (MPA) and ascending aorta (AAO) image evaluation in pediatric patients with single ventricle (SV) by comparing dual-source computed tomography (DSCT) with echocardiography. Thirty-one children with SV were retrospectively enrolled. The stenosis, dilation, and location of MPA and AAO were independently evaluated by DSCT and echocardiography. The accompanying arterial malformations were also assessed by DSCT. For 17 patients undergoing cardiac catheterization, the DSCT-based diameters of MPA and AAO were correlated with their pressures as measured by catheterization. Referring to the surgical and catheterization findings, DSCT had better diagnostic performance in detecting the stenosis, dilation, and location of MPA and AAO with higher sensitivity than echocardiography (sensitivity, MPA: 88.0% vs. 80.0%, AAO: 100% vs. 66.7%, great arteries location: 95.7% vs. 95.2%). The correlations between diameters of MPA and AAO with their pressures were 0.399 (p = 0.04) and 0.611 (p = 0.01), respectively. In addition, DSCT detected 23 cases with patent ductus arteriosus, 26 systemic-to-pulmonary collaterals, 9 branch pulmonary distortions, and 4 coronary artery anomalies. DSCT is reliable for assessing the anatomic features of pulmonary artery and aorta in SV children, and provides comprehensive information for surgical strategy-making. PMID- 29042579 TI - Publisher Correction: Migratory appendicular muscles precursor cells in the common ancestor to all vertebrates. AB - In Fig. 2 of this Article originally published, some erroneous lines appeared on the left side of the images in panels c, e and g. The figure should have appeared as shown below. These errors have now been corrected in all versions of the Article. PMID- 29042578 TI - beta-defensin 1 expression in HCV infected liver/liver cancer: an important role in protecting HCV progression and liver cancer development. AB - beta-defensin family plays a role in host defense against viral infection, however its role in HCV infection is still unknown. In this study, we demonstrated that beta-defensin 1 was significantly reduced in HCV-infected liver specimens. Treatment with interferon and ribavirin upregulated beta-defensin-1, but not other beta-defensin tested, with the extent and duration of upregulation associated with treatment response. We investigated beta-defensin family expression in liver cancer in publicly available datasets and found that among all the beta-defensins tested, only beta-defensin 1 was significantly downregulated, suggesting beta-defensin 1 plays a crucial role in liver cancer development. Further analysis identified E-cadherin as the top positive correlated gene, while hepatocyte growth factor-regulated tyrosine kinase substrate as the top negative correlated gene. Expression of two proteoglycans were also positively correlated with that of beta-defensin 1. We have also identified small molecules as potential therapeutic agents to reverse beta defensin 1-associated gene signature. Furthermore, the downregulation of beta defensin 1 and E-cadherin, and upregulation of hepatocyte growth factor-regulated tyrosine kinase substrate, were further confirmed in liver cancer and adjacent normal tissue collected from in-house Chinese liver cancer patients. Together, our results suggest beta-defensin 1 plays an important role in protecting HCV progression and liver cancer development. PMID- 29042580 TI - Distorting temporal fine structure by phase shifting and its effects on speech intelligibility and neural phase locking. AB - Envelope (E) and temporal fine structure (TFS) are important features of acoustic signals and their corresponding perceptual function has been investigated with various listening tasks. To further understand the underlying neural processing of TFS, experiments in humans and animals were conducted to demonstrate the effects of modifying the TFS in natural speech sentences on both speech recognition and neural coding. The TFS of natural speech sentences was modified by distorting the phase and maintaining the magnitude. Speech intelligibility was then tested for normal-hearing listeners using the intact and reconstructed sentences presented in quiet and against background noise. Sentences with modified TFS were then used to evoke neural activity in auditory neurons of the inferior colliculus in guinea pigs. Our study demonstrated that speech intelligibility in humans relied on the periodic cues of speech TFS in both quiet and noisy listening conditions. Furthermore, recordings of neural activity from the guinea pig inferior colliculus have shown that individual auditory neurons exhibit phase locking patterns to the periodic cues of speech TFS that disappear when reconstructed sounds do not show periodic patterns anymore. Thus, the periodic cues of TFS are essential for speech intelligibility and are encoded in auditory neurons by phase locking. PMID- 29042581 TI - Immunoproteasome subunit beta5i/LMP7-deficiency in atherosclerosis. AB - Management of protein homeostasis by the ubiquitin-proteasome system is critical for atherosclerosis development. Recent studies showed controversial results on the role of immunoproteasome (IP) subunit beta5i/LMP7 in maintenance of protein homeostasis under cytokine induced oxidative stress. The present study aimed to investigate the effect of beta5i/LMP7-deficiency on the initiation and progression of atherosclerosis as a chronic inflammatory, immune cell driven disease. LDLR-/-LMP7-/- and LDLR-/- mice were fed a Western-type diet for either 6 or 24 weeks to induce early and advanced stage atherosclerosis, respectively. Lesion burden was similar between genotypes in both stages. Macrophage content and abundance of polyubiquitin conjugates in aortic root plaques were unaltered by beta5i/LMP7-deficiency. In vitro experiments using bone marrow-derived macrophages (BMDM) showed that beta5i/LMP7-deficiency did not influence macrophage polarization or accumulation of polyubiquitinated proteins and cell survival upon hydrogen peroxide and interferon-gamma treatment. Analyses of proteasome core particle composition by Western blot revealed incorporation of standard proteasome subunits in beta5i/LMP7-deficient BMDM and spleen. Chymotrypsin-, trypsin- and caspase-like activities assessed by using short fluorogenic peptides in BMDM whole cell lysates were similar in both genotypes. Taken together, deficiency of IP subunit beta5i/LMP7 does not disturb protein homeostasis and does not aggravate atherogenesis in LDLR-/- mice. PMID- 29042582 TI - Portable biosensor for monitoring cortisol in low-volume perspired human sweat. AB - A non-faradaic label-free cortisol biosensor was demonstrated using MoS2 nanosheets integrated into a nanoporous flexible electrode system. Low volume (1 5 MUL) sensing was achieved through use of a novel sensor stack design comprised of vertically aligned metal electrodes confining semi-conductive MoS2 nanosheets. The MoS2 nanosheets were surface functionalized with cortisol antibodies towards developing an affinity biosensor specific to the physiological relevant range of cortisol (8.16 to 141.7 ng/mL) in perspired human sweat. Sensing was achieved by measuring impedance changes associated with cortisol binding along the MoS2 nanosheet interface using electrochemical impedance spectroscopy. The sensor demonstrated a dynamic range from 1-500 ng/mL with a limit of detection of 1 ng/mL. A specificity study was conducted using a metabolite expressed in human sweat, Ethyl Glucuronide. Continuous dosing studies were performed during which the sensor was able to discriminate between four cortisol concentration ranges (0.5, 5, 50, 500 ng/mL) for a 3+ hour duration. Translatability of the sensor was shown with a portable form factor device, demonstrating a comparable dynamic range and limit of detection for the sensor. The device demonstrated a R2 correlation value of 0.998 when comparing measurements to the reported impedance values of the benchtop instrumentation. PMID- 29042583 TI - Prokaryotic Community Distribution along an Ecological Gradient of Salinity in Surface and Subsurface Saline Soils. AB - Salinity effects on microbial communities in saline soils is still unclear, and little is known about subsurface soil microbial communities especially in saline or hypersaline ecosystems. Here we presented the survey of the prokaryotic community in saline soils along a salinity gradient (17.3-148.3 dS/m) in surface (0-10 cm) and subsurface (15-30 cm) saline soils of Qarhan Salt Lake, China. Moreover, we compared them with three paired nonsaline normal soils. Using the high-throughput sequencing technology and several statistical methods, we observed no significant community difference between surface soils and subsurface soils. For environmental factors, we found that TOC was the primary driver of the prokaryotic community distribution in surface saline soils, so was pH in subsurface saline soils. Salinity had more effects on the prokaryotic community in subsurface saline soils than in surface saline soils and played a less important role in saline soils than in saline waters or saline sediments. Our research provided references for the prokaryotic community distribution along a salinity gradient in both surface and subsurface saline soils of arid playa areas. PMID- 29042585 TI - Compact-Morphology-based poly-metallic Nodule Delineation. AB - Poly-metallic nodules are a marine resource considered for deep sea mining. Assessing nodule abundance is of interest for mining companies and to monitor potential environmental impact. Optical seafloor imaging allows quantifying poly metallic nodule abundance at spatial scales from centimetres to square kilometres. Towed cameras and diving robots acquire high-resolution imagery that allow detecting individual nodules and measure their sizes. Spatial abundance statistics can be computed from these size measurements, providing e.g. seafloor coverage in percent and the nodule size distribution. Detecting nodules requires segmentation of nodule pixels from pixels showing sediment background. Semi supervised pattern recognition has been proposed to automate this task. Existing nodule segmentation algorithms employ machine learning that trains a classifier to segment the nodules in a high-dimensional feature space. Here, a rapid nodule segmentation algorithm is presented. It omits computation-intense feature-based classification and employs image processing only. It exploits a nodule compactness heuristic to delineate individual nodules. Complex machine learning methods are avoided to keep the algorithm simple and fast. The algorithm has successfully been applied to different image datasets. These data sets were acquired by different cameras, camera platforms and in varying illumination conditions. Their successful analysis shows the broad applicability of the proposed method. PMID- 29042584 TI - The Role of Chromatin Density in Cell Population Heterogeneity during Stem Cell Differentiation. AB - We incorporate three-dimensional (3D) conformation of chromosome (Hi-C) and single-cell RNA sequencing data together with discrete stochastic simulation, to explore the role of chromatin reorganization in determining gene expression heterogeneity during development. While previous research has emphasized the importance of chromatin architecture on activation and suppression of certain regulatory genes and gene networks, our study demonstrates how chromatin remodeling can dictate gene expression distribution by folding into distinct topological domains. We hypothesize that the local DNA density during differentiation accentuate transcriptional bursting due to the crowding effect of chromatin. This phenomenon yields a heterogeneous cell population, thereby increasing the potential of differentiation of the stem cells. PMID- 29042586 TI - Bone Microarchitecture and Biomechanics of the Necrotic Femoral Head. AB - The mechanism behind osteonecrosis of the femoral head (ONFH) remains unclear. The aim of this study was to explore the pathogenesis of ONFH from a biomechanical standpoint to provide a theoretical basis for improved treatments. We compared the bone structure of fractured femoral heads with that of necrotic femoral heads by Micro-CT scanning and histological evaluation. In addition, we compared the biomechanical properties of each zone in fractured femoral heads with those in necrotic femoral heads by using biomechanical tests. Compared with fractured femoral heads, bone microarchitecture and bone morphometry in necrotic zone and sclerotic zone of necrotic femoral heads have altered markedly. In addition, the biomechanical properties of the necrotic zone in femoral heads weaken markedly, while those of the sclerotic zone strengthen. We hypothesize that discordance between bone structure and function of the femoral head may be involved in the pathogenesis of ONFH and that more attention should be paid to the prevention and treatment of such discordance. PMID- 29042587 TI - MiR-302b Suppresses Osteosarcoma Cell Migration and Invasion by Targeting Runx2. AB - Osteosarcoma patients with lung metastasis and local invasion remain challenging to treat despite the significant contribution of the combination of surgery and neo-adjuvant chemotherapy. Our previous microarray study demonstrated that miR 302b had significantly lower expression in osteosarcoma cell lines than in osteoblast cell lines. In the present study, we further elucidated the role of miR-302b in regulating the migration and invasiveness of osteosarcoma. MiR-302b expression was markedly down-regulated in osteosarcoma cell lines and clinical tumour tissues. Lower levels of miR-302b expression were significantly associated with metastasis and high pathological grades. A functional study demonstrated that over-expression of miR-302b suppressed tumour cell proliferation, invasion and migration in vitro and in vivo. Runx2 was identified as a direct target gene for miR-302b by bioinformatics analysis and dual-luciferase reporter gene assay. Moreover, over-expression of miR-302b induced down-regulation of Runx2, OPN, MMP 2, MMP-9, MMP-12, MMP-14, and VEGF in 143B cells. Exogenous expression of Runx2 partially rescued the inhibitory effect of miR-302b on the invasion and migration activity of 143B osteosarcoma cells. Taken together, our results indicate that miR-302b functions as a tumour repressor in the invasion and migration of osteosarcoma by directly downregulating Runx2 expression and may be a potential therapeutic target for osteosarcoma. PMID- 29042588 TI - A Microscopic Shell Structure with Schwarz's D-Surface. AB - Recently, materials with micro-architecture of hollow trusses and ultralow density (less than 10-2 Mg/m3) have gained attention. The materials have been fabricated by forming templates based on 3D lithographical techniques, followed by hard coating on the surface, and finally etching out the template. Here, we describe a novel fabrication method for another micro architecture composed of a single continuous smooth-curved shell with D-surface, named Shellular; its template is prepared based on weaving flexible polymer wires. Compression test results reveal that these D-surfaced Shellulars have strength and Young's modulus comparable to those of their hollow truss-based competitors. The best virtue of this weaving-based technology is its mass-productivity and large-size potential. Also, this technology can be applied to fabricate not only D-surfaced but also P- or G-surfaced Shellular. The unique geometry of Shellular, composed of a single continuous, smooth, and interfacial shell or membrane separating two equivalent sub-volumes intertwined with each other, appears to possess huge application potential such as non-clogging tissue engineering scaffolds and compact light weight fuel cells with high energy density. PMID- 29042589 TI - GLRB variants regulate nearby gene expression in human brain tissues. AB - A recent genome-wide association study (GWAS) identified four genetic variants rs78726293, rs191260602, rs17035816 and rs7688285 in GLRB gene to be associated with panic disorder (PD) risk. In fact, GWAS is an important first step to investigate the genetics of human complex diseases. In order to translate into opportunities for new diagnostics and therapies, we must identify the genes perturbed by these four variants, and understand how these variant functionally contributes to the underlying disease pathogenesis. Here, we investigated the effect of these four genetic variants and the expression of three nearby genes including PDGFC, GLRB and GRIA2 in human brain tissues using the GTEx (version 6) and Braineac eQTLs datasets. In GTEx (version 6) dataset, the results showed that both rs17035816 and rs7688285 variants could significantly regulate PDGFC and GLRB gene expression. In Braineac dataset, the results showed that rs17035816 variant could significantly regulate GLRB and GRIA2 gene expression. We believe that these findings further provide important supplementary information about the regulating mechanisms of rs17035816 and rs7688285 variants in PD risk. PMID- 29042590 TI - Effects of short-term heat shock and physiological responses to heat stress in two Bradysia adults, Bradysia odoriphaga and Bradysia difformis. AB - Bradysia odoriphaga and Bradysia difformis are devastating pests of vegetable, ornamental crops and edible mushrooms causing significant losses. Temperature may be an important factor restricting their population abundance in the summer. To determine the effects of short-term heat shock on adults, their survival, longevity and fecundity data were collected, and antioxidant responses and heat shock protein expression levels were examined. Our results indicated that the survival rates of Bradysia adults decreased rapidly after heat shock >=36 degrees C, and the longevity and reproductive capacities were significantly inhibited, indicating that short-term heat shock had lethal and sub-lethal effects. Moreover, the lipid peroxidation levels of B. difformis and B. odoriphaga increased dramatically at 36 degrees C and 38 degrees C, respectively. Four antioxidant enzymes activities of B. odoriphaga were greater than those of B. difformis at 38 degrees C. Additionally, hsp70 and hsp90 expression levels significantly increased after heat stress, and higher expression levels of B. difformis and B. odoriphaga were discovered at 36 and 38 degrees C respectively, indicating their different heat tolerance levels. Overall, short-term heat shock (>=36 degrees C) caused significantly adverse effects on Bradysia adults, indicating that it could be applied in pest control, and antioxidant system and hsp genes played important roles in their heat tolerance levels. PMID- 29042591 TI - Diffusion and distribution of deuterium in scandium deuteride thin films under irradiation of deuterium ion beam. AB - Scandium deuteride (ScDx) thin films, as an alternative target for deuterium deuterium (D-D) reaction, are a very important candidate for detection and diagnostic applications. Albeit with their superior thermal stability, the ignorance of the stability of ScDx under irradiation of deuterium ion beam hinders the realization of their full potential. In this report, we characterize ScDx thin films with scanning electron microscopy (SEM) and X-ray diffraction (XRD), Rutherford backscattering spectroscopy (RBS) and elastic recoil detection analysis (ERDA). We found with increased implantation of deuterium ions, accumulation and diffusion of deuterium are enhanced. Surprisingly, the concentration of deuterium restored to the value before implantation even at room temperature, revealing a self-healing process which is of great importance for the long-term operation of neutron generator. PMID- 29042593 TI - Structure, Intrinsic properties and Vibrational Spectra of Pr(Mg1/2Sn1/2)O3 Ceramic Crystal. AB - Pr(Mg1/2Sn1/2)O3 (PMS) ceramic was prepared through a conventional solid-state reaction method. Crystal structure was investigated through X-ray diffraction (XRD), which certificates that the main phase is PMS with monoclinic P2 1/n1 symmetry. Lattice vibrational modes were obtained through Raman scattering spectroscopy and Fourier transform far-infrared reflection spectroscopy. The Raman spectrum active modes were assigned and illustrated, respectively, and then fitted with Lorentzian function. The four modes within the range of 110-200 cm-1 are derived from the F 2g vibrations (A-site cations), and the other three modes (300-430 cm-1) are derived from the F 2g vibrations (B-site cations).The mode with highest frequency above 650 cm-1 is attributed to A 1g -like mode that corresponds to the symmetric breathing of oxygen octahedral. The far-infrared spectrum with seven infrared active modes was fitted using four-parameter semi quantum models to calculate intrinsic properties (permittivity and loss). F 2u(2) yielded the greatest contribution to dielectric constant and loss, which is mainly performed as the inverted translational vibration of Pr-MgO6 octahedron. PMID- 29042592 TI - Impaired detection of happy facial expressions in autism. AB - The detection of emotional facial expressions plays an indispensable role in social interaction. Psychological studies have shown that typically developing (TD) individuals more rapidly detect emotional expressions than neutral expressions. However, it remains unclear whether individuals with autistic phenotypes, such as autism spectrum disorder (ASD) and high levels of autistic traits (ATs), are impaired in this ability. We examined this by comparing TD and ASD individuals in Experiment 1 and individuals with low and high ATs in Experiment 2 using the visual search paradigm. Participants detected normal facial expressions of anger and happiness and their anti-expressions within crowds of neutral expressions. In Experiment 1, reaction times were shorter for normal angry expressions than for anti-expressions in both TD and ASD groups. This was also the case for normal happy expressions vs. anti-expressions in the TD group but not in the ASD group. Similarly, in Experiment 2, the detection of normal vs. anti-expressions was faster for angry expressions in both groups and for happy expressions in the low, but not high, ATs group. These results suggest that the detection of happy facial expressions is impaired in individuals with ASD and high ATs, which may contribute to their difficulty in creating and maintaining affiliative social relationships. PMID- 29042594 TI - Serum SAA1 and APOE are novel indicators for human cytomegalovirus infection. AB - Human cytomegalovirus (HCMV) infection is a global concern and highly infectious. HCMV-infected individuals are often carriers with damaged immunity. However few diagnostic indicators block HMCV control and prevention. Thus, we measured 21 serum proteins related to HCMV infection using iTRAQ-labeling based quantitative proteomic approaches and SAA1 and APOE were confirmed as candidate serum indicators for identification of HMCV infection according to ROC curve analysis and that co-occurrence of SAA1 and APOE are better markers than individual proteins. PMID- 29042595 TI - A plasma proteomics method reveals links between ischemic stroke and MTHFR C677T genotype. AB - Methylene Tetrahydrofolate Reductase (MTHFR) catalyzes the conversion of methylene tetrahydrofolate to methylte trahydrofolate. The 677th nucleotide of the MTHFR gene is often regarded as a risk factor of cardiovascular disease. Previous studies demonstrated an elevated risk of ischemic stroke with the MTHFR677TT genotype. In this study, we employed a plasma proteomics method to investigate the connection between the polymorphism of the target nucleotide and stroke. In total, 28 protein spots were differentially expressed between the two groups, and of which, 25 protein spots were up-regulated and 3 were down regulated. Five randomly selected spots were successfully identified as Haptoglobin (HPT) and Transferrin (TRFE). A functional analysis indicated that most of the differential expressed proteins (DEPs) were related to the inflammatory immune response. A Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that these DEPs were involved in the complement cascade reaction. Meanwhile, protein-protein interactions (PPIs) analysis highlighted the novel association between the C677T MTHFR genotype and Vitamin D binding protein (DBP), which was confirmed by a molecular genetic analysis. The results suggested that the phenotype of the MTHFR might be associated with multiple proteins that have a synergistic effect, which might be related to the mechanism of ischemic stroke. PMID- 29042596 TI - Host heterozygosity and genotype rarity affect viral dynamics in an avian subspecies complex. AB - Genetic diversity at community, population and individual levels is thought to influence the spread of infectious disease. At the individual level, inbreeding and heterozygosity are associated with increased risk of infection and disease severity. Host genotype rarity may also reduce infection risk if pathogens are co adapted to common or local hosts, but to date, no studies have investigated the relative importance of genotype rarity and heterozygosity for infection in a wild, sexually reproducing vertebrate. With beak and feather disease virus (BFDV) infection in a wild parrot (Platycercus elegans), we show that both heterozygosity and genotype rarity of individual hosts predicted infection, but in contrasting ways. Heterozygosity was negatively associated with probability of infection, but not with infection load. In contrast, increased host genotype rarity was associated with lower viral load in infected individuals, but did not predict infection probability. These effects were largely consistent across subspecies, but were not evident at the population level. Subspecies and age were also strongly associated with infection. Our study provides novel insights into infection dynamics by quantifying rarity and diversity simultaneously. We elucidate roles that host genetic diversity can play in infection dynamics, with implications for understanding population divergence, intraspecific diversity and conservation. PMID- 29042598 TI - A generalized simulation development approach for predicting refugee destinations. AB - In recent years, global forced displacement has reached record levels, with 22.5 million refugees worldwide. Forecasting refugee movements is important, as accurate predictions can help save refugee lives by allowing governments and NGOs to conduct a better informed allocation of humanitarian resources. Here, we propose a generalized simulation development approach to predict the destinations of refugee movements in conflict regions. In this approach, we synthesize data from UNHCR, ACLED and Bing Maps to construct agent-based simulations of refugee movements. We apply our approach to develop, run and validate refugee movement simulations set in three major African conflicts, estimating the distribution of incoming refugees across destination camps, given the expected total number of refugees in the conflict. Our simulations consistently predict more than 75% of the refugee destinations correctly after the first 12 days, and consistently outperform alternative naive forecasting techniques. Using our approach, we are also able to reproduce key trends in refugee arrival rates found in the UNHCR data. PMID- 29042597 TI - Herpud1 negatively regulates pathological cardiac hypertrophy by inducing IP3 receptor degradation. AB - Cardiac hypertrophy is an adaptive response triggered by pathological stimuli. Regulation of the synthesis and the degradation of the Ca2+ channel inositol 1,4,5-trisphosphate receptor (IP3R) affects progression to cardiac hypertrophy. Herpud1, a component of the endoplasmic reticulum-associated degradation (ERAD) complex, participates in IP3R1 degradation and Ca2+ signaling, but the cardiac function of Herpud1 remains unknown. We hypothesize that Herpud1 acts as a negative regulator of cardiac hypertrophy by regulating IP3R protein levels. Our results show that Herpud1-knockout mice exhibit cardiac hypertrophy and dysfunction and that decreased Herpud1 protein levels lead to elevated levels of hypertrophic markers in cultured rat cardiomyocytes. In addition, IP3R levels were elevated both in Herpud1-knockout mice and Herpud1 siRNA-treated rat cardiomyocytes. The latter treatment also led to elevated cytosolic and nuclear Ca2+ levels. In summary, the absence of Herpud1 generates a pathological hypertrophic phenotype by regulating IP3R protein levels. Herpud1 is a novel negative regulator of pathological cardiac hypertrophy. PMID- 29042599 TI - Progesterone Via its Type-A Receptor Promotes Myometrial Gap Junction Coupling. AB - Effective labour contractions require synchronization of myometrial cells through gap junctions (GJs). Clasically, progesterone (P4) is known to inhibit the expression of connexin-43 (Cx43, major component of GJs) and GJ formation in myometrium. Our current study is based on a striking observation that challenges this dogma. We observed conspicuous differences in the intracellular localization of Cx43 protein in PRA versus PRB expressing myocytes. Thus in P4 stimulated PRA cells Cx43 protein forms GJs, whereas in PRB cells the forward trafficking of Cx43 and GJ formation is inhibited even when Cx43 is overexpressed. We found that P4, via PRA/B, differentially regulates Cx43 translation to generate a Cx43-20 K isoform, which facilitates the transport of full length Cx43 to plasma membrane. The P4 mediated regulation of Cx43 trafficking and GJ formation occurs via non genomic pathway and involves the regulation of mTOR signaling since inhibition of this pathway restored the Cx43 trafficking defect in PRB cells. We propose that PRA is a master regulator of Cx43 expression, GJ formation and myocyte connectivity/synchronization for labour. PMID- 29042601 TI - Short-term effects of tillage and residue on spring maize yield through regulating root-shoot ratio in Northeast China. AB - In recent years, yield instability of spring maize becomes increasingly pronounced under the traditional cropping system. In 2014 and 2015, short-term effects of tillage (plow-till, rotary-till and no-till) and residue (removal and incorporation) on soil properties, maize growth and yield were investigated in a brown soil region. Our results indicated that short-term reduced tillage (rotary till and no-till) and residue incorporation promoted soil properties and maize growth. Compared with plow-till, rotary-till and no-till decreased soil bulk density and compaction below the plough layer (~30 cm). The soil organic carbon (SOC), total nitrogen and C:N of surface soil layers increased under the rotary till (0-20 cm) and no-till (0-10 cm), which were higher in 0-30 cm soil layers for residue incorporation. For both years, root characteristics of root diameter (RAD) and root surface area density (RSD), biomass indexes of root biomass (RB), shoot biomass (SB) and root-shoot ratio (R:S) were increased under these short term treatments. Although there were positive relationships between soil water content (SWC), C:N, RAD, RSD, RB, SB, R:S and yield, structural equation modeling showed maize yield was directly controlled by R:S. These findings will have important implications for improving the current cropping system (i.e., plow-till with residue removed) in this area. PMID- 29042600 TI - Dynamic and Modularized MicroRNA Regulation and Its Implication in Human Cancers. AB - MicroRNA is responsible for the fine-tuning of fundamental cellular activities and human disease development. The altered availability of microRNAs, target mRNAs, and other types of endogenous RNAs competing for microRNA interactions reflects the dynamic and conditional property of microRNA-mediated gene regulation that remains under-investigated. Here we propose a new integrative method to study this dynamic process by considering both competing and cooperative mechanisms and identifying functional modules where different microRNAs co-regulate the same functional process. Specifically, a new pipeline was built based on a meta-Lasso regression model and the proof-of-concept study was performed using a large-scale genomic dataset from ~4,200 patients with 9 cancer types. In the analysis, 10,726 microRNA-mRNA interactions were identified to be associated with a specific stage and/or type of cancer, which demonstrated the dynamic and conditional miRNA regulation during cancer progression. On the other hands, we detected 4,134 regulatory modules that exhibit high fidelity of microRNA function through selective microRNA-mRNA binding and modulation. For example, miR-18a-3p, -320a, -193b-3p, and -92b-3p co-regulate the glycolysis/gluconeogenesis and focal adhesion in cancers of kidney, liver, lung, and uterus. Furthermore, several new insights into dynamic microRNA regulation in cancers have been discovered in this study. PMID- 29042602 TI - The optimal window size for analysing longitudinal networks. AB - The time interval between two snapshots is referred to as the window size. A given longitudinal network can be analysed from various actor-level perspectives, such as exploring how actors change their degree centrality values or participation statistics over time. Determining the optimal window size for the analysis of a given longitudinal network from different actor-level perspectives is a well-researched network science problem. Many researchers have attempted to develop a solution to this problem by considering different approaches; however, to date, no comprehensive and well-acknowledged solution that can be applied to various longitudinal networks has been found. We propose a novel approach to this problem that involves determining the correct window size when a given longitudinal network is analysed from different actor-level perspectives. The approach is based on the concept of actor-level dynamicity, which captures variability in the structural behaviours of actors in a given longitudinal network. The approach is applied to four real-world, variable-sized longitudinal networks to determine their optimal window sizes. The optimal window length for each network, determined using the approach proposed in this paper, is further evaluated via time series and data mining methods to validate its optimality. Implications of this approach are discussed in this article. PMID- 29042603 TI - Separation of Antioxidant Peptides from Pepsin Hydrolysate of Whey Protein Isolate by ATPS of EOPO Co-polymer (UCON)/Phosphate. AB - An aqueous two-phase system (ATPS) consisting of poly(ethylene glycol-ran propylene glycol) monobutyl ether (UCON)/phosphate was developed for the separation of the antioxidant peptides from pepsin hydrolysate of Whey Protein Isolate (WPI). The efficiency of the separation was evaluated based on the DPPH radical scavenging activity, ABTS radical scavenging activity and ferric reducing antioxidant power (FRAP) of the separated peptides. The effects of some parameters on the partition of antioxidant peptides were investigated. An efficient separation of antioxidant peptides was achieved using ATPS with pH of 4.0, 4 mL of UCON solution (40%, w/w), 4 mL of KH2PO4 solution (15.5%, w/w), 2 mL of WPI hydrolysate and 0.40 g/10 mL of NaCl. Reversed-phase high-performance liquid chromatography (RP-HPLC), amino acid analyzer and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) were used to characterize the purified peptides separated by the ATPS. The peptides in top phase were less polar than those in bottom phase. More antioxidative and hydrophobic amino acids were extracted to the top phase of ATPS, and the peptides with the amino acid sequences with antioxidant activities moved to the top phase as well. In conclusion, antioxidant peptides were successfully separated from the WPI hydrolysate by UCON/phosphate ATPS. PMID- 29042605 TI - Dynamic photo-switching in light-responsive JUC-62 for CO 2 capture. AB - In this paper, we demonstrate the highly efficient photo-switching ability of a Cu-azobenzene tetracarboxylate MOF (JUC-62) for low-energy CO2 capture. Under UV light irradiation, both at 273 and 298 K, JUC-62 showed 51% and 34% lower CO2 uptake, respectively, than when UV light was off. Its dynamic CO2 uptake also matched well with its static condition. Storing it at ambient condition was also found not to destroy its framework structure and its dynamic photoswitching property could still be maintained. PMID- 29042604 TI - Placenta-specific1 (PLAC1) is a potential target for antibody-drug conjugate based prostate cancer immunotherapy. AB - Our recent findings strongly support the idea of PLAC1 being as a potential immunotherapeutic target in prostate cancer (PCa). Here, we have generated and evaluated an anti-placenta-specific1 (PLAC1)-based antibody drug conjugate (ADC) for targeted immunotherapy of PCa. Prostate cancer cells express considerable levels of PLAC1. The Anti-PLAC1 clone, 2H12C12, showed high reactivity with recombinant PLAC1 and selectivity recognized PLAC1 in prostate cancer cells but not in LS180 cells, the negative control. PLAC1 binding induced rapid internalization of the antibody within a few minutes which reached to about 50% after 15 min and almost completed within an hour. After SN38 conjugation to antibody, a drug-antibody ratio (DAR) of about 5.5 was achieved without apparent negative effect on antibody affinity to cell surface antigen. The ADC retained intrinsic antibody activity and showed enhanced and selective cytotoxicity with an IC50 of 62 nM which was about 15-fold lower compared to free drug. Anti-PLAC1 ADC induced apoptosis in human primary prostate cancer cells and prostate cell lines. No apparent cytotoxic effect was observed in in vivo animal safety experiments. Our newly developed anti-PLAC1-based ADCs might pave the way for a reliable, efficient, and novel immunotherapeutic modality for patients with PCa. PMID- 29042606 TI - Population genomics of Wolbachia and mtDNA in Drosophila simulans from California. AB - Wolbachia pipientis is an intracellular endosymbiont infecting many arthropods and filarial nematodes. Little is known about the short-term evolution of Wolbachia or its interaction with its host. Wolbachia is maternally inherited, resulting in co-inheritance of mitochondrial organelles such as mtDNA. Here I explore the evolution of Wolbachia, and the relationship between Wolbachia and mtDNA, using a large inbred panel of Drosophila simulans. I compare this to the only other large population genomic Wolbachia dataset from D. melanogaster. I find reduced diversity relative to expectation in both Wolbachia and mtDNA, but only mtDNA shows evidence of a recent selective sweep or population bottleneck. I estimate Wolbachia and mtDNA titre in each genotype, and I find considerable variation in both phenotypes, despite low genetic diversity in Wolbachia and mtDNA. A phylogeny of Wolbachia and of mtDNA suggest a recent origin of the infection derived from a single origin. Using Wolbachia and mtDNA titre as a phenotype, I perform the first association analysis using this phenotype with the nuclear genome and find several implicated regions, including one which contains four CAAX-box protein processing genes. CAAX-box protein processing can be an important part of host-pathogen interactions in other systems, suggesting interesting directions for future research. PMID- 29042607 TI - Abnormal M1/M2 macrophage phenotype profiles in the small airway wall and lumen in smokers and chronic obstructive pulmonary disease (COPD). AB - We explore potential dysregulation of macrophage phenotypes in COPD pathogenesis through integrated study of human small airway tissue, bronchoalveolar lavage (BAL) and an experimental murine model of COPD. We evaluated human airway tissue and BAL from healthy controls, normal lung function smokers (NLFS), and COPD subjects. Both small airways and BAL cells were immunohistochemically stained with anti-CD68 for total macrophages and with anti-CD163 for M2, and anti-iNOS for M1 macrophages. Multiplex ELISA measured BAL cytokines. Comparable cigarette smoke-induced experimental COPD mouse model was assessed for relevant mRNA profiles. We found an increase in pro-inflammatory M1s in the small airways of NLFS and COPD compared to controls with a reciprocal decrease in M2 macrophages, which remained unchanged among pathological groups. However, luminal macrophages showed a dominant M2 phenotype in both NLFS and COPD subjects. BAL cytokine skewed towards an M2 profile with increase in CCL22, IL-4, IL-13, and IL-10 in both NLFS and COPDs. The mouse-model of COPD showed similar increase in mRNA for M2 markers. Our finding suggests abnormal macrophage switching in both mucosal and luminal areas of COPD patients, that strongly associated with cytokine balance. There may be potential for beneficial therapeutic cytokine manipulation of macrophage phenotypes in COPD. PMID- 29042608 TI - Sedum alfredii SaNramp6 Metal Transporter Contributes to Cadmium Accumulation in Transgenic Arabidopsis thaliana. AB - The plant natural resistance-associated macrophage protein (Nramp) family plays an important role in tolerance to heavy metal stress. However, few Nramps have been functionally characterized in the heavy metal-accumulating plant Sedum alfredii. Here, Nramp6 was cloned and identified from S. alfredii and its function analyzed in transgenic Arabidopsis thaliana. SaNramp6 cDNA contains an open reading frame of 1, 638 bp encoding 545 amino acids. SaNramp6's expression can be induced by cadmium (Cd) stress, and, after treatment, it peaked at one week and 12 h in the roots and leaves, respectively. SaNramp6 localized to the plasma membrane in protoplasts isolated from A. thaliana, Nicotiana benthamiana lower leaf and onion (Allium cepa) epidermal cells. The heterologous expression of SaNramp6 in the Deltaycf1 yeast mutant increased the Cd content in yeast cells. SaNramp6 also rescued the low Cd accumulation of the A. thaliana nramp1 mutant. Transgenic A. thaliana expressing SaNramp6 exhibited high Cd accumulation levels, as determined by a statistical analysis of the Cd concentration, translocation factors and net Cd2+ fluxes under Cd stress. Thus, SaNramp6 may play a significant role in improving Cd accumulation, and the gene may be useful for the biotechnological development of transgenic plants for phytoremediation. PMID- 29042609 TI - Structural analysis of PIM1 kinase complexes with ATP-competitive inhibitors. AB - PIM1 is an oncogenic kinase overexpressed in a number of cancers where it correlates with poor prognosis. Several studies demonstrated that inhibition of PIM1 activity is an attractive strategy in fighting overexpressing cancers, while distinct structural features of ATP binding pocket make PIM1 an inviting target for the design of selective inhibitors. To facilitate development of specific PIM1 inhibitors, in this study we report three crystal structures of ATP competitive inhibitors at the ATP binding pocket of PIM1. Two of the reported structures (CX-4945 and Ro-3306) explain the off-target effect on PIM1 of respectively casein kinase 2 and cyclin-dependent kinase 1 dedicated inhibitors. In turn, the structure with CX-6258 demonstrates a binding mode of a potent, selective inhibitor of PIM1, PIM2, PIM3 and Flt-3 kinases. The consequences of our findings for future inhibitor development are discussed. PMID- 29042610 TI - Giant Enhancement of Exchange Coupling in Entropy-Stabilized Oxide Heterostructures. AB - Entropy-stabilized materials are stabilized by the configurational entropy of the constituents, rather than the enthalpy of formation of the compound. A unique benefit to entropy-stabilized materials is the increased solubility of elements, which opens a broad compositional space, with subsequent local chemical and structural disorder resulting from different atomic sizes and preferred coordinations of the constituents. Known entropy-stabilized oxides contain magnetically interesting constituents, however, the magnetic properties of the multi-component oxide have yet to be investigated. Here we examine the role of disorder and composition on the exchange anisotropy of permalloy/(Mg0.25(1 x)CoxNi0.25(1-x)Cu0.25(1-x)Zn0.25(1-x))O heterostructures. Anisotropic magnetic exchange and the presence of a critical blocking temperature indicates that the magnetic order of the entropy-stabilized oxides considered here is antiferromagnetic. Changing the composition of the oxide tunes the disorder, exchange field and magnetic anisotropy. Here, we exploit this tunability to enhance the strength of the exchange field by a factor of 10x at low temperatures, when compared to a permalloy/CoO heterostructure. Significant deviations from the rule of mixtures are observed in the structural and magnetic parameters, indicating that the crystal is dominated by configurational entropy. Our results reveal that the unique characteristics of entropy-stabilized materials can be utilized and tailored to engineer magnetic functional phenomena in oxide thin films. PMID- 29042611 TI - Developmental stage-dependent regulation of spine formation by calcium-calmodulin dependent protein kinase IIalpha and Rap1. AB - The roles of calcium-calmodulin-dependent protein kinase II-alpha (CaMKIIalpha) in the expression of long-term synaptic plasticity in the adult brain have been extensively studied. However, how increased CaMKIIalpha activity controls the maturation of neuronal circuits remains incompletely understood. Herein, we show that pyramidal neurons without CaMKIIalpha activity upregulate the rate of spine addition, resulting in elevated spine density. Genetic elimination of CaMKIIalpha activity specifically eliminated the observed maturation-dependent suppression of spine formation. Enhanced spine formation was associated with the stabilization of actin in the spine and could be reversed by increasing the activity of the small GTPase Rap1. CaMKIIalpha activity was critical in the phosphorylation of synaptic Ras GTPase-activating protein (synGAP), the dispersion of synGAP from postsynaptic sites, and the activation of postsynaptic Rap1. CaMKIIalpha is already known to be essential in learning and memory, but our findings suggest that CaMKIIalpha plays an important activity-dependent role in restricting spine density during postnatal development. PMID- 29042612 TI - Novel Application of Magnetic Protein: Convenient One-Step Purification and Immobilization of Proteins. AB - Recently, a magnetic protein was discovered, and a multimeric magnetosensing complex was validated, which may form the basis of magnetoreception. In this study, the magnetic protein was firstly used in biotechnology application, and a novel convenient one-step purification and immobilization method was established. A universal vector and three linker patterns were developed for fusion expression of magnetic protein and target protein. The magnetic protein was absorbed by iron beads, followed by target protein aggregation, purification, and immobilization. GFP, employed as a reporter protein, was successfully purified from cell lysate. Subsequently, three enzymes (lipase, alpha-L-arabinofuranosidase, pullulanase) with different molecular sizes testified the versatility of this magnetic-based approach. The specific activities of the purified enzymes were distinctly higher than those of the traditionally purified enzymes using affinity chromatography. The lipase immobilized on iron beads presented improved thermostability and enhanced pH tolerance compared to the free enzyme. The immobilized lipase could be easily recovered and reused for maximum utilization. After 20 cycles of reutilization, the magnetically immobilized lipase retained 71% of its initial activity. This investigation may help introduce magnetic protein into biotechnology applications, and the one-step purification and immobilization method may serve to illustrate an economically viable process for industry. PMID- 29042613 TI - Fabrication of AO/LDH fluorescence composite and its detection of Hg2+ in water. AB - Divalent mercury ion (Hg2+) is one of the most common pollutants in water with high toxicity and significant bioaccumulation, for which sensitive and selective detection methods are highly necessary to carry out its detection and quantification. Fluorescence detection by organic dyes is a simple and rapid method in pollutant analyses and is limited because of quenching caused by aggregation dye molecules. Hydrotalcite (LDH) is one of the most excellent carrier materials. In this study, an organic dye acridine orange (AO) was successfully loaded on the LDH layers, which significantly inhibited fluorescence quenching of AO. The composite AO/LDH reaches the highest fluorescence intensity when the AO initial concentration is 5 mg/L. With its enhanced fluorescent property, the composite powder was fabricated to fluorescence test papers. The maximal fluorescence intensity was achieved with a pulp to AO/LDH ratio of 1:5 which can be used to detect Hg2+ in water by naked eyes. Hg2+ in aqueous solution can be detected by instruments in the range of 0.5 to 150 mM. The novelty of this study lies on both the development of a new type of mineral-dye composite material, as well as its practical applications for fast detection. PMID- 29042614 TI - 3D- Printed Poly(epsilon-caprolactone) Scaffold Integrated with Cell-laden Chitosan Hydrogels for Bone Tissue Engineering. AB - Synthetic polymeric scaffolds are commonly used in bone tissue engineering (BTE) due to their biocompatibility and adequate mechanical properties. However, their hydrophobicity and the lack of specific cell recognition sites confined their practical application. In this study, to improve the cell seeding efficiency and osteoinductivity, an injectable thermo-sensitive chitosan hydrogel (CSG) was incorporated into a 3D-printed poly(epsilon-caprolactone) (PCL) scaffold to form a hybrid scaffold. To demonstrate the feasibility of this hybrid system for BTE application, rabbit bone marrow mesenchymal stem cells (BMMSCs) and bone morphogenetic protein-2 (BMP-2) were encapsulated in CSG. Pure PCL scaffolds were used as controls. Cell proliferation and viability were investigated. Osteogenic gene expressions of BMMSCs in various scaffolds were determined with reverse transcription polymerase chain reaction (RT-PCR). Growth factor releasing profile and mechanical tests were performed. CCK-8 assay confirmed greater cell retention and proliferation in chitosan and hybrid groups. Confocal microscopy showed even distribution of cells in the hybrid system. After 2-week osteogenic culture in vitro, BMMSCs in hybrid and chitosan scaffolds showed stronger osteogenesis and bone-matrix formation. To conclude, chitosan/PCL hybrid scaffolds are a favorable platform for BTE due to its capacity to carry cells and drugs, and excellent mechanical strength. PMID- 29042615 TI - Roles of bulk and surface magnetic anisotropy on the longitudinal spin Seebeck effect of Pt/YIG. AB - A clear understanding of the temperature evolution of the longitudinal spin Seebeck effect (LSSE) in the classic Pt/yttrium iron garnet (YIG) system and its association with magnetic anisotropy is essential towards optimization of its spin-caloric functionality for spintronics applications. We report here for the first time the temperature dependences of LSSE voltage (V LSSE), magnetocrystalline anisotropy field (H K) and surface perpendicular magnetic anisotropy field (H KS) in the same Pt/YIG system. We show that on lowering temperature, the sharp drop in V LSSE and the sudden increases in H K and H KS at ~175 K are associated with the spin reorientation due to single ion anisotropy of Fe2+ ions. The V LSSE peak at ~75 K is attributed to the H KS and M S (saturation magnetization) whose peaks also occur at the same temperature. The effects of surface and bulk magnetic anisotropies are corroborated with those of thermally excited magnon number and magnon propagation length to satisfactorily explain the temperature dependence of LSSE in the Pt/YIG system. Our study also emphasizes the important roles of bulk and surface anisotropies in the LSSE in YIG and paves a new pathway for developing novel spin-caloric materials. PMID- 29042616 TI - Reduced nitric oxide levels during drought stress promote drought tolerance in barley and is associated with elevated polyamine biosynthesis. AB - Nitric oxide (NO) is a key messenger in plant stress responses but its exact role in drought response remains unclear. To investigate the role of NO in drought response we employed transgenic barley plants (UHb) overexpressing the barley non symbiotic hemoglobin gene HvHb1 that oxidizes NO to NO3-. Reduced NO production under drought conditions in UHb plants was associated with increased drought tolerance. Since NO biosynthesis has been related to polyamine metabolism, we investigated whether the observed drought-related NO changes could involve polyamine pathway. UHb plants showed increases in total polyamines and in particular polyamines such as spermidine. These increases correlated with the accumulation of the amino acid precursors of polyamines and with the expression of specific polyamine biosynthesis genes. This suggests a potential interplay between NO and polyamine biosynthesis during drought response. Since ethylene has been linked to NO signaling and it is also related to polyamine metabolism, we explored this connection. In vivo ethylene measurement showed that UHb plants significantly decrease ethylene production and expression of aminocyclopropane-1 carboxylic acid synthase gene, the first committed step in ethylene biosynthesis compared with wild type. These data suggest a NO-ethylene influenced regulatory node in polyamine biosynthesis linked to drought tolerance/susceptibility in barley. PMID- 29042618 TI - Investigating the relationship between Aerosol Optical Depth and Precipitation over Southeast Asia with Relative Humidity as an influencing factor. AB - Atmospheric aerosols influence precipitation by changing the earth's energy budget and cloud properties. A number of studies have reported correlations between aerosol properties and precipitation data. Despite previous research, it is still hard to quantify the overall effects that aerosols have on precipitation as multiple influencing factors such as relative humidity (RH) can distort the observed relationship between aerosols and precipitation. Thus, in this study, both satellite-retrieved and reanalysis data were used to investigate the relationship between aerosols and precipitation in the Southeast Asia region from 2001 to 2015, with RH considered as a possible influencing factor. Different analyses in the study indicate that a positive correlation was present between Aerosol Optical Depth (AOD) and precipitation over northern Southeast Asia region during the autumn and the winter seasons, while a negative correlation was identified over the Maritime Continent during the autumn season. Subsequently, a partial correlation analysis revealed that while RH influences the long-term negative correlations between AOD and precipitation, it did not significantly affect the positive correlations seen in the winter season. The result of this study provides additional evidence with respect to the critical role of RH as an influencing factor in AOD-precipitation relationship over Southeast Asia. PMID- 29042617 TI - Expression and function of Abcg4 in the mouse blood-brain barrier: role in restricting the brain entry of amyloid-beta peptide. AB - ABCG4 is an ATP-binding cassette transmembrane protein which has been shown, in vitro, to participate in the cellular efflux of desmosterol and amyloid-beta peptide (Abeta). ABCG4 is highly expressed in the brain, but its localization and function at the blood-brain barrier (BBB) level remain unknown. We demonstrate by qRT-PCR and confocal imaging that mouse Abcg4 is expressed in the brain capillary endothelial cells. Modelling studies of the Abcg4 dimer suggested that desmosterol showed thermodynamically favorable binding at the putative sterol binding site, and this was greater than for cholesterol. Additionally, unbiased docking also showed Abeta binding at this site. Using a novel Abcg4-deficient mouse model, we show that Abcg4 was able to export Abeta and desmosterol at the BBB level and these processes could be inhibited by probucol and L-thyroxine. Our assay also showed that desmosterol antagonized the export of Abeta, presumably as both bind at the sterol-binding site on Abcg4. We show for the first time that Abcg4 may function in vivo to export Abeta at the BBB, in a process that can be antagonized by its putative natural ligand, desmosterol (and possibly cholesterol). PMID- 29042619 TI - Diffusion tensor image features predict IDH genotype in newly diagnosed WHO grade II/III gliomas. AB - We hypothesized that machine learning analysis based on texture information from the preoperative MRI can predict IDH mutational status in newly diagnosed WHO grade II and III gliomas. This retrospective study included in total 79 consecutive patients with a newly diagnosed WHO grade II or III glioma. Local binary pattern texture features were generated from preoperative B0 and fractional anisotropy (FA) diffusion tensor imaging. Using a training set of 59 patients, a single hidden layer neural network was then trained on the texture features to predict IDH status. The model was validated based on the prediction accuracy calculated in a previously unseen set of 20 gliomas. Prediction accuracy of the generated model was 92% (54/59 cases; AUC = 0.921) in the training and 95% (19/20; AUC = 0.952) in the validation cohort. The ten most important features were comprised of tumor size and both B0 and FA texture information, underlining the joint contribution of imaging data to classification. Machine learning analysis of DTI texture information and tumor size reliably predicts IDH status in preoperative MRI of gliomas. Such information may increasingly support individualized surgical strategies, supplement pathological analysis and highlight the potential of radiogenomics. PMID- 29042620 TI - An Integrin-Targeted, Highly Diffusive Construct for Photodynamic Therapy. AB - Targeted antineoplastic agents show great promise in the treatment of cancer, having the ability to impart cytotoxicity only to specific tumor types. However, these therapies do not experience uniform uptake throughout tumors, leading to sub-lethal cell killing that can impart treatment resistance, and cause problematic off-target effects. Here we demonstrate a photodynamic therapy construct that integrates both a cyclic RGD moiety for integrin-targeting, as well as a 5 kDa PEG chain that passivates the construct and enables its rapid diffusion throughout tumors. PEGylation of the photosensitizer construct was found to prevent photosensitizer aggregation, boost the generation of cytotoxic reactive radical species, and enable the rapid uptake of the construct into cells throughout large (>500 um diameter) 3D tumor spheroids. Replacing the cyclic RGD with the generic RAD peptide led to the loss of cellular uptake in 3D culture, demonstrating the specificity of the construct. Photodynamic therapy with the construct was successful in inducing cytotoxicity, which could be competitively blocked by a tenfold concentration of free cyclic RGD. This construct is a first of-its kind theranostic that may serve as a new approach in our growing therapeutic toolbox. PMID- 29042621 TI - Postnatal Development of the Murine Notochord Remnants Quantified by High resolution Contrast-enhanced MicroCT. AB - The notochord gives rise to spinal segments during development, and it becomes embedded within the nucleus pulposus of the intervertebral disc (IVD) during maturation. The disruption of the notochord band has been observed with IVD degeneration. Since the mechanical competence of the IVD relies on its structural constituents, defining the structure of the notochord during aging is critical for investigations relating to IVD function and homeostasis. The assessment and imaging of the notochord has classically relied on histological techniques, which introduces sectioning artifacts during preparation and spatial biases. Magnetic resonance imaging (MRI) does not offer sufficient resolution to discriminate the notochord from the surrounding the nucleus pulposus, especially in murine models. Current X-ray based computed tomography systems provide imaging resolutions down to the single- and sub- micron scales, and when coupled with contrast-enhancing agents, enable the high-resolution three-dimensional imaging of relatively small features. Utilizing phosphomolybdic acid to preferentially bind to collagen cationic domains, we describe the structure of the notochord remnants with aging in the lumbar IVDs of BALB/c mice. These results provide a highly quantitative and sensitive approach to monitoring the IVD during postnatal development. PMID- 29042622 TI - Surface Decoration of Pt Nanoparticles via ALD with TiO2 Protective Layer on Polymeric Nanofibers as Flexible and Reusable Heterogeneous Nanocatalysts. AB - Coupling the functional nanoheterostructures over the flexible polymeric nanofibrous membranes through electrospinning followed by the atomic layer deposition (ALD), here we presented a high surface area platform as flexible and reusable heterogeneous nanocatalysts. Here, we show the ALD of titanium dioxide (TiO2) protective nanolayer onto the electrospun polyacrylonitrile (PAN) nanofibrous web and then platinum nanoparticles (Pt-NP) decoration was performed by ALD onto TiO2 coated PAN nanofibers. The free-standing and flexible Pt-NP/TiO2 PAN nanofibrous web showed the enhancive reduction of 4-nitrophenol (4-NP) to 4 aminophenol (4-AP) within 45 seconds though the hydrogenation process with the degradation rate of 0.1102 s-1. The TiO2 protective layer on the PAN polymeric nanofibers was presented as an effective route to enhance the attachment of Pt-NP and to improve the structure stability of polymeric nanofibrous substrate. Commendable enhancement in the catalytic activity with the catalytic dosage and the durability after the reusing cycles were investigated over the reduction of 4 NP. Even after multiple usage, the Pt-NP/TiO2-PAN nanofibrous webs were stable with the flexible nature with the presence of Pt and TiO2 on its surface. PMID- 29042623 TI - The protein phosphatase 1 regulator NIPP1 is essential for mammalian spermatogenesis. AB - NIPP1 is one of the major nuclear interactors of protein phosphatase PP1. The deletion of NIPP1 in mice is early embryonic lethal, which has precluded functional studies in adult tissues. Hence, we have generated an inducible NIPP1 knockout model using a tamoxifen-inducible Cre recombinase transgene. The inactivation of the NIPP1 encoding alleles (Ppp1r8) in adult mice occurred very efficiently in testis and resulted in a gradual loss of germ cells, culminating in a Sertoli-cell only phenotype. Before the overt development of this phenotype Ppp1r8 -/- testis showed a decreased proliferation and survival capacity of cells of the spermatogenic lineage. A reduced proliferation was also detected after the tamoxifen-induced removal of NIPP1 from cultured testis slices and isolated germ cells enriched for undifferentiated spermatogonia, hinting at a testis-intrinsic defect. Consistent with the observed phenotype, RNA sequencing identified changes in the transcript levels of cell-cycle and apoptosis regulating genes in NIPP1 depleted testis. We conclude that NIPP1 is essential for mammalian spermatogenesis because it is indispensable for the proliferation and survival of progenitor germ cells, including (un)differentiated spermatogonia. PMID- 29042625 TI - Radiation Resistance of Silicon Carbide Schottky Diode Detectors in D-T Fusion Neutron Detection. AB - Silicon carbide (SiC) is a wide band-gap semiconductor material with many excellent properties, showing great potential in fusion neutron detection. The radiation resistance of 4H-SiC Schottky diode detectors was studied experimentally by carefully analyzing the detectors' properties before and after deuterium-tritium fusion neutron irradiation with the total fluence of 1.31 * 1014 n/cm2 and 7.29 * 1014 n/cm2 at room temperature. Significant degradation has been observed after neutron irradiation: reverse current increased greatly, over three to thirty fold; Schottky junction was broken down; significant lattice damage was observed at low temperature photoluminescence measurements; the peaks of alpha particle response spectra shifted to lower channels and became wider; the charge collection efficiency (CCE) decreased by about 7.0% and 22.5% at 300 V with neutron irradiation fluence of 1.31 * 1014 n/cm2 and 7.29 * 1014 n/cm2, respectively. Although the degradation exists, the SiC detectors successfully survive intense neutron radiation and show better radiation resistance than silicon detectors. PMID- 29042624 TI - Worsening calcification propensity precedes all-cause and cardiovascular mortality in haemodialyzed patients. AB - A novel in-vitro test (T50-test) assesses ex-vivo serum calcification propensity which predicts mortality in HD patients. The association of longitudinal changes of T50 with all-cause and cardiovascular mortality has not been investigated. We assessed T50 in paired sera collected at baseline and at 24 months in 188 prevalent European HD patients from the ISAR cohort, most of whom were Caucasians. Patients were followed for another 19 [interquartile range: 11-37] months. Serum T50 exhibited a significant decline between baseline and 24 months (246 +/- 64 to 190 +/- 68 minutes; p < 0.001). With serum Delta-phosphate showing the strongest independent association with declining T50 (r = -0.39; p < 0.001) in multivariable linear regression. The rate of decline of T50 over 24 months was a significant predictor of all-cause (HR = 1.51 per 1SD decline, 95% CI: 1.04 to 2.2; p = 0.03) and cardiovascular mortality (HR = 2.15; 95% CI: 1.15 to 3.97; p = 0.02) in Kaplan Meier and multivariable Cox-regression analysis, while cross sectional T50 at inclusion and 24 months were not. Worsening serum calcification propensity was an independent predictor of mortality in this small cohort of prevalent HD patients. Prospective larger scaled studies are needed to assess the value of calcification propensity as a longitudinal parameter for risk stratification and monitoring of therapeutic interventions. PMID- 29042626 TI - Long-term Cyclability of Substoichiometric Silicon Nitride Thin Film Anodes for Li-ion Batteries. AB - Silicon has been the subject of an extensive research effort aimed at developing new anode materials for lithium ion batteries due to its large specific and volumetric capacity. However, commercial use is limited by a number of degradation problems, many of which are related to the large volume change the material undergoes during cycling in combination with limited lithium diffusivity. Silicon rich silicon oxides (SiOx), which converts into active silicon and inactive lithium oxide during the initial lithiation, have attracted some attention as a possible solution to these issues. In this work we present an investigation of silicon rich amorphous silicon nitride (a-SiNx) as an alternative convertible anode material. Amorphous SiN0.89 thin films deposited by plasma enhanced chemical vapour deposition show reversible reactions with lithium when cycled between 0.05 and 1.0 V vs. Li+/Li. This material delivers a reversible capacity of approximately 1,200 mAh/g and exhibits excellent cycling stability, with 41 nm a-SiN0.89 thin film electrodes showing negligible capacity degradation over more than 2,400 cycles. PMID- 29042627 TI - TIPE2 negatively regulates mycoplasma pneumonia-triggered immune response via MAPK signaling pathway. AB - Excessive immune responses played an important role in pathophysiology of mycoplasma pneumonia (MP) infection. Tumor necrosis factor-alpha-induced protein 8-like 2 (TIPE2) is a negative regulator of immune response. This study investigated the expression change of TIPE2 and its role in immune defense against MP infection, as well as the underlying mechanisms. Expressions of TIPE2 both in patients and in macrophages in vitro after MP infection were measured. We further studied cytokine production and mitogen-activated protein kinase (MAPK) signaling function in macrophages with interfered expression of TIPE2 upon MP infection. A significant decrease of TIPE2 mRNA expression was observed in peripheral blood mononuclear cells (PBMCs) from MP patients, which was correlated with the severity of infection. Accordingly we found down-regulation of TIPE2 expression in macrophages after MP infection. In vitro study further suggested that TIPE2 jeopardized inflammatory cytokine production trigged by MP infection via inhibiting MAPK signaling pathway. These findings provided evidences of the novel function of TIPE2 in anti-MP immunity and its possible clinical utility related clinical significance. PMID- 29042628 TI - A DNA Contact Map for the Mouse Runx1 Gene Identifies Novel Haematopoietic Enhancers. AB - The transcription factor Runx1 is essential for definitive haematopoiesis, and the RUNX1 gene is frequently translocated or mutated in leukaemia. Runx1 is transcribed from two promoters, P1 and P2, to give rise to different protein isoforms. Although the expression of Runx1 must be tightly regulated for normal blood development, the mechanisms that regulate Runx1 isoform expression during haematopoiesis remain poorly understood. Gene regulatory elements located in non coding DNA are likely to be important for Runx1 transcription. Here we use circular chromosome conformation capture sequencing to identify DNA interactions with the P1 and P2 promoters of Runx1, and the previously identified +24 enhancer, in the mouse multipotent haematopoietic progenitor cell line HPC-7. The active promoter, P1, interacts with nine non-coding regions that are occupied by transcription factors within a 1 Mb topologically associated domain. Eight of nine regions function as blood-specific enhancers in zebrafish, of which two were previously shown to harbour blood-specific enhancer activity in mice. Interestingly, the +24 enhancer interacted with multiple distant regions on chromosome 16, suggesting it may regulate the expression of additional genes. The Runx1 DNA contact map identifies connections with multiple novel and known haematopoietic enhancers that are likely to be involved in regulating Runx1 expression in haematopoietic progenitor cells. PMID- 29042629 TI - Development of a real-time fluorescence loop-mediated isothermal amplification assay for rapid and quantitative detection of Ustilago maydis. AB - The common smut of corn, caused by Ustilago maydis is a troublesome disease of maize. Early and accurate detection of U. maydis is essential for the disease management. In this study, primer set Pep-2 was selected for LAMP (loop-mediated isothermal amplification) from 12 sets of primers targeting three U. maydis effector genes See1, Pit2 and Pep1 according to primer screening. The optimal concentrations of Bst DNA polymerase and Mg2+ as well as inner/outer primer ratio of the LAMP reaction system were screened by combining a single factor experiment and an orthogonal design arrangement. The specificity of this real-time LAMP (RealAmp) assay was confirmed by negative testing for other pathogens. The detection sensitivity of the RealAmp assay was 200 times higher than that of detection through conventional PCR. Results of the RealAmp assay for quantifying the genomic DNA of U. maydis were confirmed by testing with both artificially and naturally infected samples. In addition, the RealAmp reaction could be conducted via an improved tube scanner to implement a "electricity free" assay from template preparation to quantitative detection. The resulting assay could be more convenient for use in the field as a simple, rapid, and effective technique for monitoring U. maydis. PMID- 29042630 TI - Controlling sound radiation through an opening with secondary loudspeakers along its boundaries. AB - We propose a virtual sound barrier system that blocks sound transmission through openings without affecting access, light and air circulation. The proposed system applies active control technique to cancel sound transmission with a double layered loudspeaker array at the edge of the opening. Unlike traditional transparent glass windows, recently invented double-glazed ventilation windows and planar active sound barriers or any other metamaterials designed to reduce sound transmission, secondary loudspeakers are put only along the boundaries of the opening, which provides the possibility to make it invisible. Simulation and experimental results demonstrate its feasibility for broadband sound control, especially for low frequency sound which is usually hard to attenuate with existing methods. PMID- 29042631 TI - Prognostic significance of preoperative gamma-glutamyltransferase to lymphocyte ratio index in nonfunctional pancreatic neuroendocrine tumors after curative resection. AB - Various inflammation-based prognostic scores have been associated with reduced survival in patients with nonfunctional pancreatic neuroendocrine tumor (NF PNET). However, few studies have illuminated the relationship between the preoperative gamma-glutamyltransferase (GGT) to lymphocyte ratio index (GLRI) and the prognosis of NF-PNET. A retrospective review of 125 NF-PNET patients following curative resection was conducted. The cut-off values for the inflammation-based prognostic scores, including GLRI, were selected using receiver operating characteristic curve analysis. Univariate, multivariate and Kaplan-Meier analyses were used to calculate overall survival (OS) and disease free survival (DFS). The optimal cut-off value for GLRI was 10.3. Multivariate analysis showed that GLRI was an independent predictor of OS (P = 0.001) and DFS (P = 0.007) for NF-PNET. Kaplan-Meier analysis also showed that preoperative GLRI had significant prognostic value in various subgroups of patients with NF-PNET. The discriminatory capability of GLRI was superior to that of other inflammation based scores in OS prediction. Furthermore, the predictive range was expanded by incorporating GLRI into the conventional stratification systems, including AJCC staging and WHO classification. These results indicated that preoperative GLRI was an independent predictor for NF-PNET patients undergoing curative resection. The incorporation of GLRI into the existing conventional stratification systems resulted in improved predictive accuracy. PMID- 29042632 TI - The potential for coral reef establishment through free-living stabilization. AB - Corals thrive in a variety of environments, from low wave and tidal energy lagoons, to high energy tidal reef flats, but remain dependent upon suitable substrate. Herein we reviewed the phenomenon of free-living corals (coralliths), examined whether they have the capacity to create their own stable habitat in otherwise uninhabitable, poor substrate environments through 'free-living stabilization', and explore their potential ecological role on coral reefs. This stabilization could be achieved by coral settlement and survival on mobile substrate, with subsequent growth into free-living coralliths until a critical mass is reached that prevents further movement. This allows for secondary reef colonization by other coral species. To preliminarily test this hypothesis we provide evidence that the potential to support secondary coral colonisation increases with corallith size. Due to the limited diversity of corallith species observed here and in the literature, and the lack of physiological differences exhibited by coralliths here to static controls, it seems likely that only a small selection of coral species have the ability to form coralliths, and the potential to create their own stable habitat. PMID- 29042633 TI - Catsper1 promoter is bidirectional and regulates the expression of a novel lncRNA. AB - The Catsper1 gene, whose expression is restricted to male germ cells, has great importance in reproductive biology because of its function in sperm motility and fertilization. We previously reported that the promoter of this gene has transcriptional activity in either direction in a heterologous system. In the present study, we found that the Catsper1 promoter has in vitro transcriptional activity in either orientation in GC-1 spg mouse spermatogonial cells. The results also showed that this promoter regulates the expression of a new divergent Catsper1 gene named Catsper1au (Catsper1 antisense upstream transcript). Catsper1au is expressed in adult male mouse testis and liver tissues but not in female mouse liver or ovary tissues. In the testis, Catsper1au is expressed in embryos at 11.5 days post-coitum and from newborns to adults. This gene is also expressed in 1- to 3-week postnatal hearts and in 1-week to adult stage livers. The analysis of the 1402 bp whole genome sequence revealed that Catsper1au is an intronless and polyadenylated lncRNA, located in the nuclei of Sertoli and spermatogenic cells from adult testis. These data indicate that Catsper1au is divergently expressed from the Catsper1 promoter and could regulate gene expression during spermatogenesis. PMID- 29042634 TI - A novel quantification-driven proteomic strategy identifies an endogenous peptide of pleiotrophin as a new biomarker of Alzheimer's disease. AB - We present a new, quantification-driven proteomic approach to identifying biomarkers. In contrast to the identification-driven approach, limited in scope to peptides that are identified by database searching in the first step, all MS data are considered to select biomarker candidates. The endopeptidome of cerebrospinal fluid from 40 Alzheimer's disease (AD) patients, 40 subjects with mild cognitive impairment, and 40 controls with subjective cognitive decline was analyzed using multiplex isobaric labeling. Spectral clustering was used to match MS/MS spectra. The top biomarker candidate cluster (215% higher in AD compared to controls, area under ROC curve = 0.96) was identified as a fragment of pleiotrophin located near the protein's C-terminus. Analysis of another cohort (n = 60 over four clinical groups) verified that the biomarker was increased in AD patients while no change in controls, Parkinson's disease or progressive supranuclear palsy was observed. The identification of the novel biomarker pleiotrophin 151-166 demonstrates that our quantification-driven proteomic approach is a promising method for biomarker discovery, which may be universally applicable in clinical proteomics. PMID- 29042635 TI - Remarkably enhanced current-driven 360 degrees domain wall motion in nanostripe by tuning in-plane biaxial anisotropy. AB - By micromagnetic simulations, we study the current-driven 360 degrees domain wall (360DW) motion in ferromagnetic nanostripe with an in-plane biaxial anisotropy. We observe the critical annihilation current of 360 degrees domain wall can be enhanced through such a type of anisotropy, the reason of which is the suppression of out-of-plane magnetic moments generated simultaneously with domain-wall motion. In details, We have found that the domain-wall width is only related to K y - K x , with K x(y) the anisotropy constant in x(y) direction. Taking domain-wall width into consideration, a prior choice is to keep K y ~ K x with large enough K. The mode of domain-wall motion has been investigated as well. The traveling-wave-motion region increases with K, while the average DW velocity is almost unchanged. Another noteworthy feature is that a Walker breakdown-like motion exists before annihilation. In this region, though domain wall moves with an oscillating behavior, the average velocity does not reduce dramatically, but even rise again for a large K. PMID- 29042636 TI - Dysfunctional Early Processing of Facial Expressions in Hazardous Drinkers: Evidence from an ERP Study. AB - Chronic alcohol intoxication impairs multiple cognitive functions. According to the dual system model (DSM), the development of alcohol dependence (AD) involves the imbalance between the automatic-affective system and the reflective system. However, the cognitive functions of non-AD hazardous drinkers (HDs) remain unclear. The present study aimed to explore how the HDs process facial expressions differently from the healthy subjects. Sixteen HDs and seventeen control subjects (CSs) completed an emotional working memory (WM) task while the electroencephalogram (EEG) was recorded. We found that there was no significant group difference in behavioral performance between the two groups. In the ERP data, relative to the CSs, the HDs showed delayed latencies of P1 and N170. Moreover, the CSs showed significant differences between the amplitudes of neural/fear and disgust expressions while these differences were insignificant in the HDs. The current results suggest that the main deficits in the processing of facial expression in HDs existed in the early automatic-affective system instead of in the reflective system. PMID- 29042637 TI - The polyglutamine protein ataxin-3 enables normal growth under heat shock conditions in the methylotrophic yeast Pichia pastoris. AB - The protein ataxin-3 carries a polyglutamine stretch close to the C-terminus that triggers a neurodegenerative disease in humans when its length exceeds a critical threshold. A role as a transcriptional regulator but also as a ubiquitin hydrolase has been proposed for this protein. Here, we report that, when expressed in the yeast Pichia pastoris, full-length ataxin-3 enabled almost normal growth at 37 degrees C, well above the physiological optimum of 30 degrees C. The N-terminal Josephin domain (JD) was also effective but significantly less, whereas catalytically inactive JD was completely ineffective. Based on MudPIT proteomic analysis, we observed that the strain expressing full length, functional ataxin-3 displayed persistent upregulation of enzymes involved in mitochondrial energy metabolism during growth at 37 degrees C compared with the strain transformed with the empty vector. Concurrently, in the transformed strain intracellular ATP levels at 37 degrees C were even higher than normal ones at 30 degrees C. Elevated ATP was also paralleled by upregulation of enzymes involved in both protein biosynthesis and biosynthetic pathways, as well as of several stress-induced proteins. A similar pattern was observed when comparing a strain expressing JD with another expressing its catalytically inactive counterpart. We suggest that such effects mostly result from mechanisms of transcriptional regulation. PMID- 29042638 TI - Carbon nanowalls as a platform for biological SERS studies. AB - Herein we report about developing new type of Surface Enhanced Raman Scattering (SERS) substrates based on Au-decorated carbon nanowalls. The designed substrates possess high specific surface area and high sensitivity. Chemical stability of Au perfectly blends with electrical properties and high value of specific surface area of carbon nanowalls. Created structures were applied to detect signals of a typical molecule used for SERS substrates testing, rhodamine 6G, which exhibits electronic absorption in the visible area of spectrum, and biomacromolecules such as tryptophan, guanine, bovine serum albumin and keratin hydrolysates, whose electronic absorption is in the ultraviolet region of spectrum and lies far from the Au plasmonic resonance. The obtained signals for these compounds suggest that the developed substrate is a prominent platform for the detection of biological macromolecules. The properties of the substrate, including its morphology and Au film thickness, as well as the analyte deposition method, were optimized to achieve the optimum Raman signal enhancement. Electric field distribution in the designed structures was calculated to describe the observed dependence of SERS activity on the substrate morphology. PMID- 29042639 TI - School-based assessment of amblyopia and strabismus among multiethnic children in rural China. AB - We aimed to determine the prevalence and possible ethnic variations in strabismus and amblyopia among multiethnic school-aged children in rural China. A total of 9,263 children (4,347 Han, 3,352 Yi, 799 Dai and 765 Bai) aged 6 to 14 years were analyzed. Comprehensive eye examinations including monocular distance visual acuity, anterior segment examination, autorefraction, cover testing and ocular motility were conducted. Manifested strabismus was detected in 3.53% of the overall population. The prevalence of strabismus was 3.29% in Han, 4.12% in Yi, 2.25% in Dai, and 3.66% in Bai ethnic groups with marginally inter-ethnic differences (P = 0.046). There was an increasing trend in the prevalence of strabismus with increasing age (P < 0.001). Amblyopia affected 132 children (1.43%) overall, with no statistical differences in gender and age. The prevalence of amblyopia was highest in Dai ethnic group (2.00%) and lowest in ethnic Yi ethnic group (1.04%) with no significant difference being detected (P = 0.062). Refractive error and strabismus were the two major factors associated with amblyopia. No significant ethnic differences in strabismus and amblyopia among Chinese ethnic minorities were observed. Refractive error and strabismus were the major causes for amblyopia in rural Chinese children. PMID- 29042641 TI - Unconscious avoidance of eye contact in autism spectrum disorder. AB - Atypical responses to direct gaze are one of the most characteristic hallmarks of autism spectrum disorder (ASD). The cause and mechanism underlying this phenomenon, however, have remained unknown. Here we investigated whether the atypical responses to eye gaze in autism spectrum disorder is dependent on the conscious perception of others' faces. Face stimuli with direct and averted gaze were rendered invisible by interocular suppression and eye movements were recorded from participants with ASD and an age and sex matched control group. Despite complete unawareness of the stimuli, the two groups differed significantly in their eye movements to the face stimuli. In contrast to the significant positive saccadic index observed in the TD group, indicating an unconscious preference to the face with direct gaze, the ASD group had no such preference towards direct gaze and instead showed a tendency to prefer the face with averted gaze, suggesting an unconscious avoidance of eye contact. These results provide the first evidence that the atypical response to eye contact in ASD is an unconscious and involuntary response. They provide a better understanding of the mechanism of gaze avoidance in autism and might lead to new diagnostic and therapeutic interventions. PMID- 29042640 TI - Validation of multiplex immunofluorescence panels using multispectral microscopy for immune-profiling of formalin-fixed and paraffin-embedded human tumor tissues. AB - Immune-profiling is becoming an important tool to identify predictive markers for the response to immunotherapy. Our goal was to validate multiplex immunofluorescence (mIF) panels to apply to formalin-fixed and paraffin-embedded tissues using a set of immune marker antibodies, with the OpalTM 7 color Kit (PerkinElmer) in the same tissue section. We validated and we described two panels aiming to characterize the expression of PD-L1, PD-1, and subsets of tumor associated immune cells. Panel 1 included pancytokeratin (AE1/AE3), PD-L1, CD4, CD8, CD3, CD68, and DAPI, and Panel 2 included pancytokeratin, PD-1, CD45RO, granzyme B, CD57, FOXP3, and DAPI. After all primary antibodies were tested in positive and negative controls by immunohistochemistry and uniplex IF, panels were developed and simultaneous marker expressions were quantified using the Vectra 3.0TM multispectral microscopy and image analysis InFormTM 2.2.1 software (PerkinElmer).These two mIF panels demonstrated specific co-localization in different cells that can identify the expression of PD-L1 in malignant cells and macrophages, and different T-cell subpopulations. This mIF methodology can be an invaluable tool for tumor tissue immune-profiling to allow multiple targets in the same tissue section and we provide that is accurate and reproducible method when is performed carefully under pathologist supervision. PMID- 29042642 TI - Modeling the climatic suitability of leishmaniasis vector species in Europe. AB - Climate change will affect the geographical distribution of many species in the future. Phlebotomine sandflies are vector species for leishmaniasis, a tropical neglected disease. We applied an ensemble forecasting niche modeling approach to project future changes in climatic suitability for ten vector competent sandfly species in Europe. Whereas the main area of sandfly distribution currently lies in the Mediterranean region, models generally projected a northwards expansion of areas with suitable climatic conditions for most species (P. alexandri, P. neglectus, P. papatasi, P. perfiliewi, P. tobbi) in the future. The range of distribution for only two species (P. ariasi, P. mascittii) was projected to decline in the future. According to our results, a higher number of vector competent species in Central Europe can generally be expected, assuming no limitations to dispersal. We recommend monitoring for the establishment of vector species, especially in areas with projected climatic suitability for multiple vector species, as a precautious strategy. An increased number of vector species, or a higher abundance of a single species, might result in a higher transmission risk of leishmaniasis, provided that the pathogens follow the projected range shifts. PMID- 29042643 TI - Measuring the Poisson's Ratio of Fibronectin Using Engineered Nanofibers. AB - The extracellular matrix (ECM) is a fibrillar protein-based network, the physical and chemical properties of which can influence a multitude of cellular processes. Despite having an important role in cell and tissue signaling, a complete chemo mechanical characterization of ECM proteins such as fibronectin (FN) is lacking. In this study, we engineered monodisperse FN nanofibers using a surface-initiated assembly technique in order to provide new insight into the elastic behavior of this material over large deformations. FN nanofibers were patterned on surfaces in a pre-stressed state and when released from the surface underwent rapid contraction. We found that the FN nanofibers underwent 3.3-fold and 9-fold changes in length and width, respectively, and that the nanofiber volume was conserved. Volume was also conserved following uniaxial extension of the FN nanofibers of ~2-fold relative to the patterned state. This data suggests that the FN networks we engineered formed an incompressible material with a Poisson's ratio of ~0.5. While the Poisson's ratio of cells and other biological materials are widely estimated as 0.5, our experimental results demonstrate that for FN networks this is a reasonable approximation. PMID- 29042644 TI - HIV-1 viral protein R (Vpr) induces fatty liver in mice via LXRalpha and PPARalpha dysregulation: implications for HIV-specific pathogenesis of NAFLD. AB - HIV patients develop hepatic steatosis. We investigated hepatic steatosis in transgenic mice expressing the HIV-1 accessory protein Vpr (Vpr-Tg) in liver and adipose tissues, and WT mice infused with synthetic Vpr. Vpr-Tg mice developed increased liver triglyceride content and elevated ALT, bilirubin and alkaline phosphatase due to three hepatic defects: 1.6-fold accelerated de novo lipogenesis (DNL), 45% slower fatty acid beta-oxidation, and 40% decreased VLDL triglyceride export. Accelerated hepatic DNL was due to coactivation by Vpr of liver X receptor-alpha (LXRalpha) with increased expression of its lipogenic targets Srebp1c, Chrebp, Lpk, Dgat, Fasn and Scd1, and intranuclear SREBP1c and ChREBP. Vpr enhanced association of LXRalpha with Lxralpha and Srebp1c promoters, increased LXRE-LXRalpha binding, and broadly altered hepatic expression of LXRalpha-regulated lipid metabolic genes. Diminished hepatic fatty acid beta oxidation was associated with decreased mRNA expression of Pparalpha and its targets Cpt1, Aox, Lcad, Ehhadh, Hsd10 and Acaa2, and blunted VLDL export with decreased expression of Mttp and its product microsomal triglyceride transfer protein. With our previous findings that Vpr circulates in HIV patients (including those with undetectable plasma HIV-1 RNA), co-regulates the glucocorticoid receptor and PPARgamma and transduces hepatocytes, these data indicate a potential role for Vpr in HIV-associated fatty liver disease. PMID- 29042645 TI - Effects of intranasal insulin application on the hypothalamic BOLD response to glucose ingestion. AB - The hypothalamus is a crucial structure in the brain that responds to metabolic cues and regulates energy homeostasis. Patients with type 2 diabetes demonstrate a lack of hypothalamic neuronal response after glucose ingestion, which is suggested to be an underlying cause of the disease. In this study, we assessed whether intranasal insulin can be used to enhance neuronal hypothalamic responses to glucose ingestion. In a randomized, double-blinded, placebo-controlled 4 double cross-over experiment, hypothalamic activation was measured in young non- diabetic subjects by determining blood-oxygen-level dependent MRI signals over 30 minutes before and after ingestion of 75 g glucose dissolved in 300 ml water, under intranasal insulin or placebo condition. Glucose ingestion under placebo condition lead to an average 1.4% hypothalamic BOLD decrease, under insulin condition the average response to glucose was a 2.2% decrease. Administration of water did not affect the hypothalamic BOLD responses. Intranasal insulin did not change circulating glucose and insulin levels. Still, circulating glucose levels showed a significant dampening effect on the BOLD response and insulin levels a significant strengthening effect. Our data provide proof of concept for future experiments testing the potential of intranasal application of insulin to ameliorate defective homeostatic control in patients with type 2 diabetes. PMID- 29042646 TI - Effects of long-term aspirin use on molecular alterations in precancerous gastric mucosa in patients with and without gastric cancer. AB - The risk of gastric cancer (GC) remains even after H. pylori eradication; thus, other combination treatments, such as chemopreventive drugs, are needed. We evaluated the effects of aspirin on genetic/epigenetic alterations in precancerous conditions, i.e., atrophic mucosa (AM) and intestinal metaplasia (IM), in patients with chronic gastritis who had taken aspirin for more than 3 years. A total of 221 biopsy specimens from 74 patients, including atrophic gastritis (AG) cases without aspirin use (control), AG cases with aspirin use (AG group), and GC cases with aspirin use (GC group), were analyzed. Aspirin use was associated with a significant reduction of CDH1 methylation in AM (OR: 0.15, 95% CI: 0.06-0.41, p = 0.0002), but was less effective in reversing the methylation that occurred in IM. Frequent hypermethylation including that of CDH1 in AM increased in the GC group compared to the AG group, and CDH1 methylation was an independent predictive marker of GC (OR: 8.50, 95% CI: 2.64-25.33, p = 0.0003). In patients with long-term aspirin use, the changes of molecular events in AM but not IM may be an important factor in the reduction of cancer incidence. In addition, methylation of the CDH1 gene in AM may be a surrogate of GC. PMID- 29042647 TI - Ultrasensitive, high-dynamic-range and broadband strain sensing by time-of-flight detection with femtosecond-laser frequency combs. AB - Ultrahigh-resolution optical strain sensors provide powerful tools in various scientific and engineering fields, ranging from long-baseline interferometers to civil and aerospace industries. Here we demonstrate an ultrahigh-resolution fibre strain sensing method by directly detecting the time-of-flight (TOF) change of the optical pulse train generated from a free-running passively mode-locked laser (MLL) frequency comb. We achieved a local strain resolution of 18 pepsilon/Hz1/2 and 1.9 pepsilon/Hz1/2 at 1 Hz and 3 kHz, respectively, with large dynamic range of >154 dB at 3 kHz. For remote-point sensing at 1-km distance, 80 pepsilon/Hz1/2 (at 1 Hz) and 2.2 pepsilon/Hz1/2 (at 3 kHz) resolution is demonstrated. While attaining both ultrahigh resolution and large dynamic range, the demonstrated method can be readily extended for multiple-point sensing as well by taking advantage of the broad optical comb spectra. These advantages may allow various applications of this sensor in geophysical science, structural health monitoring, and underwater science. PMID- 29042648 TI - Proteomic analysis of human lacrimal and tear fluid in dry eye disease. AB - To understand the pathophysiology of dry eye disease (DED), it is necessary to characterize proteins in the ocular surface fluids, including tear fluid (TF) and lacrimal fluid (LF). There have been several reports of TF proteomes, but few proteomic studies have examined LF secreted from the lacrimal gland (LG). Therefore, we characterized the proteins constituting TF and LF by liquid chromatography mass spectrometry. TF and LF were collected from patients with non Sjogren syndrome DED and from healthy subjects. Through protein profiling and label-free quantification, 1165 proteins from TF and 1448 from LF were identified. In total, 849 proteins were present in both TF and LF. Next, candidate biomarkers were verified using the multiple reaction monitoring assay in both TF and LF of 17 DED patients and 17 healthy controls. As a result, 16 marker proteins were identified (fold-change > 1.5, p-value < 0.05), of which 3 were upregulated in TF and 8 up- and 5 down-regulated in LF. In conclusion, this study revealed novel DED markers originating from the LG and tears by in-depth proteomic analysis and comparison of TF and LF proteins. PMID- 29042650 TI - Handheld Photoacoustic Microscopy Probe. AB - Optical resolution photoacoustic microscopy (OR-PAM) is a non-invasive, label free method of in vivo imaging with microscopic resolution and high optical contrast. Based on intrinsic contrasts, OR-PAM has expanded to include in vivo vessel imaging, flow cytometry, physiological parameter analysis, and single-cell characterization. However, since conventional OR-PAM systems have a fixed tabletop configuration, a large system size, and slow imaging speed, their use in preclinical and clinical studies remains limited. In this study, using microelectromechanical systems (MEMS) technology, we developed a handheld PAM probe with a high signal-to-noise ratio and image rate. To enable broader application of the OR-PAM system, we reduced its size and combined its fast scanning capabilities into a small handheld probe that uses a 2-axis waterproof MEMS scanner (2A-WP-MEMS scanner). All acoustical, optical, and mechanical components are integrated into a single probe with a diameter of 17 mm and a weight of 162 g. This study shows phantom and in vivo images of various samples acquired with the probe, including carbon fibers, electrospun microfibers, and the ear, iris, and brain of a living mouse. In particular, this study investigated the possibility of clinical applications for melanoma diagnosis by imaging the boundaries and morphology of a human mole. PMID- 29042649 TI - Lipid polymorphism in chloroplast thylakoid membranes - as revealed by 31P-NMR and time-resolved merocyanine fluorescence spectroscopy. AB - Chloroplast thylakoid membranes contain virtually all components of the energy converting photosynthetic machinery. Their energized state, driving ATP synthesis, is enabled by the bilayer organization of the membrane. However, their most abundant lipid species is a non-bilayer-forming lipid, monogalactosyl diacylglycerol; the role of lipid polymorphism in these membranes is poorly understood. Earlier 31P-NMR experiments revealed the coexistence of a bilayer and a non-bilayer, isotropic lipid phase in spinach thylakoids. Packing of lipid molecules, tested by fluorescence spectroscopy of the lipophilic dye, merocyanine 540 (MC540), also displayed heterogeneity. Now, our 31P-NMR experiments on spinach thylakoids uncover the presence of a bilayer and three non-bilayer lipid phases; time-resolved fluorescence spectroscopy of MC540 also reveals the presence of multiple lipidic environments. It is also shown by 31P-NMR that: (i) some lipid phases are sensitive to the osmolarity and ionic strength of the medium, (ii) a lipid phase can be modulated by catalytic hydrogenation of fatty acids and (iii) a marked increase of one of the non-bilayer phases upon lowering the pH of the medium is observed. These data provide additional experimental evidence for the polymorphism of lipid phases in thylakoids and suggest that non bilayer phases play an active role in the structural dynamics of thylakoid membranes. PMID- 29042651 TI - Biochemistry and adaptive colouration of an exceptionally preserved juvenile fossil sea turtle. AB - The holotype (MHM-K2) of the Eocene cheloniine Tasbacka danica is arguably one of the best preserved juvenile fossil sea turtles on record. Notwithstanding compactional flattening, the specimen is virtually intact, comprising a fully articulated skeleton exposed in dorsal view. MHM-K2 also preserves, with great fidelity, soft tissue traces visible as a sharply delineated carbon film around the bones and marginal scutes along the edge of the carapace. Here we show that the extraordinary preservation of the type of T. danica goes beyond gross morphology to include ultrastructural details and labile molecular components of the once-living animal. Haemoglobin-derived compounds, eumelanic pigments and proteinaceous materials retaining the immunological characteristics of sauropsid specific beta-keratin and tropomyosin were detected in tissues containing remnant melanosomes and decayed keratin plates. The preserved organics represent condensed remains of the cornified epidermis and, likely also, deeper anatomical features, and provide direct chemical evidence that adaptive melanism - a biological means used by extant sea turtle hatchlings to elevate metabolic and growth rates - had evolved 54 million years ago. PMID- 29042652 TI - Computational Analysis of the Molecular Mechanism of RamR Mutations Contributing to Antimicrobial Resistance in Salmonella enterica. AB - Antimicrobial resistance (AMR) in pathogenic microorganisms with multidrug resistance (MDR) constitutes a severe threat to human health. A major causative mechanism of AMR is mediated through the multidrug efflux pump (MEP). The resistance-nodulation-division superfamily (RND family) of Gram-negative bacteria is usually the major cause of MDR in clinical studies. In Salmonella enterica, the RND pump is translated from the arcAB gene, which is regulated by the activator RamA. Many MEP-caused AMR strains have high ramA gene expression due to mutations in RamR, which has a homodimeric structure comprising the dimerization domain and DNA-binding domain (DBD). Three mutations on the dimerization domain, namely Y59H, M84I, and E160D, are far from the DBD; the molecular mechanism through which they influence RamR's binding affinity to the ramA gene promoter and consequently disrupt RamA remains unclear. The present study conducted molecular dynamics simulations, binding free energy calculations, and normal mode analysis to investigate the mechanism through which Y59H, M84I, and E160D mutations on the dimerization domain influence the binding affinity of RamR to the ramA promoter. The present results suggest that the three mutations alter the RamR structure, resulting in decreased DNA-binding affinity. PMID- 29042653 TI - Silica precipitation potentially controls earthquake recurrence in seismogenic zones. AB - Silica precipitation is assumed to play a significant role in post-earthquake recovery of the mechanical and hydrological properties of seismogenic zones. However, the relationship between the widespread quartz veins around seismogenic zones and earthquake recurrence is poorly understood. Here we propose a novel model of quartz vein formation associated with fluid advection from host rocks and silica precipitation in a crack, in order to quantify the timescale of crack sealing. When applied to sets of extensional quartz veins around the Nobeoka Thrust of SW Japan, an ancient seismogenic splay fault, our model indicates that a fluid pressure drop of 10-25 MPa facilitates the formation of typical extensional quartz veins over a period of 6.6 * 100-5.6 * 101 years, and that 89% 100% of porosity is recovered within ~3 * 102 years. The former and latter sealing timescales correspond to the extensional stress period (~3 * 101 years) and the recurrence interval of megaearthquakes in the Nankai Trough (~3 * 102 years), respectively. We therefore suggest that silica precipitation in the accretionary wedge controls the recurrence interval of large earthquakes in subduction zones. PMID- 29042654 TI - Electrocatalytic Performance of Chemically Synthesized PIn-Au-SGO Composite toward Mediated Biofuel Cell Anode. AB - The proposed work intended to make an intellectual contribution to the domain of green nanotechnology which emphasizes the chemical synthesis of a conducting nanocomposite based on the incorporation of gold nanoparticles (Au) into the redox matrix of polyindole (PIn) along with the subsequent improvement in the overall properties of the composite by the addition of sulfonated graphene oxide (SGO). The bioanode was developed by the deposition of the PIn-Au-SGO nanocomposite with subsequent immobilization of ferritin (Frt) and glucose oxidase (GOx) on the glassy carbon electrode (GC). The successful application of the PIn-Au-SGO nanocomposite toward the development of a ferritin-mediated glucose biofuel cell anode was studied by the electrochemical characterization of the constructed bioanode (GC-PIn-Au-SGO/Frt/GOx) for the bioelectrocatalytic oxidation of glucose. The maximum current density obtained by the modified bioanode was found to be 17.8 mA cm-2 at the limiting glucose concentration of 50 mM in 0.1 M K4Fe(CN)6 at a scan rate of 100 mVs-1. The lifetime of the concerned bioelectrode when stored at 4 degrees C was estimated to be 53 days approximately. The appreciable results of the structural and electrochemical characterization of the PIn-Au-SGO based bioelectrode reveal its potential applications exclusively in implantable medical devices. PMID- 29042655 TI - Electron transfer pathways in a light, oxygen, voltage (LOV) protein devoid of the photoactive cysteine. AB - Blue-light absorption by the flavin chromophore in light, oxygen, voltage (LOV) photoreceptors triggers photochemical reactions that lead to the formation of a flavin-cysteine adduct. While it has long been assumed that adduct formation is essential for signaling, it was recently shown that LOV photoreceptor variants devoid of the photoactive cysteine can elicit a functional response and that flavin photoreduction to the neutral semiquinone radical is sufficient for signal transduction. Currently, the mechanistic basis of the underlying electron- (eT) and proton-transfer (pT) reactions is not well understood. We here reengineered pT into the naturally not photoreducible iLOV protein, a fluorescent reporter protein derived from the Arabidopsis thaliana phototropin-2 LOV2 domain. A single amino-acid substitution (Q489D) enabled efficient photoreduction, suggesting that an eT pathway is naturally present in the protein. By using a combination of site directed mutagenesis, steady-state UV/Vis, transient absorption and electron paramagnetic resonance spectroscopy, we investigate the underlying eT and pT reactions. Our study provides strong evidence that several Tyr and Trp residues, highly conserved in all LOV proteins, constitute the eT pathway for flavin photoreduction, suggesting that the propensity for photoreduction is evolutionary imprinted in all LOV domains, while efficient pT is needed to stabilize the neutral semiquinone radical. PMID- 29042656 TI - A new mode of contrast in biological second harmonic generation microscopy. AB - Enhanced image contrast in biological second harmonic imaging microscopy (SHIM) has previously been reported via quantitative assessments of forward- to epi generated signal intensity ratio and by polarization analysis. Here we demonstrate a new form of contrast: the material-specific, wavelength-dependence of epi-generated second harmonic generation (SHG) excitation efficiency, and discriminate collagen and myosin by ratiometric epi-generated SHG images at 920 nm and 860 nm. Collagen shows increased SHG intensity at 920 nm, while little difference is detected between the two for myosin; allowing SHIM to characterize different SHG-generating components within a complex biological sample. We propose that momentum-space mapping of the second-order non-linear structure factor is the source of this contrast and develop a model for the forward and epi generated SHG wavelength-dependence. Our model demonstrates that even very small changes in the assumed material fibrillar structure can produce large changes in the wavelength-dependency of epi-generated SHG. However, in the case of forward SHG, although the same changes impact upon absolute intensity at a given wavelength, they have very little effect on wavelength-dependency beyond the expected monotonic fall. We also propose that this difference between forward and epi-generated SHG provides an explanation for many of the wavelength-dependency discrepancies in the published literature. PMID- 29042657 TI - Unravelling the Chemical Influence of Water on the PMMA/Aluminum Oxide Hybrid Interface In Situ. AB - Understanding the stability of chemical interactions at the polymer/metal oxide interface under humid conditions is vital to understand the long-term durability of hybrid systems. Therefore, the interface of ultrathin PMMA films on native aluminum oxide, deposited by reactive adsorption, was studied. The characterization of the interface of the coated substrates was performed using ambient pressure X-ray photoelectron spectroscopy (APXPS), Fourier transform infrared spectroscopy in the Kretschmann geometry (ATR-FTIR Kretschmann) and time of-flight secondary ion mass spectrometry (ToF-SIMS). The formation of hydrogen bonds and carboxylate ionic bonds at the interface are observed. The formed ionic bond is stable up to 5 Torr water vapour pressure as shown by APXPS. However, when the coated samples are exposed to an excess of aqueous electrolyte, an increase in the amount of carboxylate bonds at the interface, as a result of hydrolysis of the methoxy group, is observed by ATR-FTIR Kretschmann. These observations, supported by ToF-SIMS spectra, lead to the proposal of an adsorption mechanism of PMMA on aluminum oxide, which shows the formation of methanol at the interface and the effect of water molecules on the different interfacial interactions. PMID- 29042658 TI - Exosomes secreted by human adipose mesenchymal stem cells promote scarless cutaneous repair by regulating extracellular matrix remodelling. AB - Scar formation is an intractable medical problem that appears after skin wounds have healed. Recent research has shown that exosomes secreted by human adipose mesenchymal stem cells (ASC-Exos) can benefit wound healing. To further explore the therapeutic potential of ASC-Exos, we investigated their effects on mitigating scar formation, and the underlying mechanisms of these effects. We found that intravenous injection of ASC-Exos decreased the size of scars and increased the ratio of collagen III to collagen I in murine incisional wounds. Exosome treatment also prevented the differentiation of fibroblasts into myofibroblasts and increased the ratio of transforming growth factor-beta3 (TGF beta3) to TGF-beta1 in vivo. Additionally, we found that ASC-Exos increased the matrix metalloproteinases-3 (MMP3) expression of skin dermal fibroblasts by activating the ERK/MAPK pathway, leading to a high ratio of MMP3 to tissue inhibitor of matrix metalloproteinases-1 (TIMP1), which is also beneficial for the remodelling of extracellular matrix (ECM). In conclusion, our results demonstrated that ASC-Exos promote ECM reconstruction in cutaneous wound repair by regulating the ratios of collagen type III: type I, TGF-beta3:TGF-beta1 and MMP3:TIMP1, and by regulating fibroblast differentiation to mitigate scar formation. Therefore, the application of ASC-Exos may be a novel therapeutic approach for scarless wound repair. PMID- 29042659 TI - Giant direct and inverse magnetocaloric effect linked to the same forward martensitic transformation. AB - Metamagnetic shape memory alloys have aroused considerable attraction as potential magnetic refrigerants due to the large inverse magnetocaloric effect associated to the magnetic-field-induction of a reverse martensitic transformation (martensite to austenite). In some of these alloys, the austenite phase can be retained on cooling under high magnetic fields, being the retained phase metastable after field removing. Here, we report a giant direct magnetocaloric effect linked to the anomalous forward martensitic transformation (austenite to martensite) that the retained austenite undergoes on heating. Under moderate fields of 10 kOe, an estimated adiabatic temperature change of 9 K has been obtained, which is (in absolute value) almost twice that obtained in the conventional transformation under higher applied fields. The observation of a different sign on the temperature change associated to the same austenite to martensite transformation depending on whether it occurs on heating (retained) or on cooling is attributed to the predominance of the magnetic or the vibrational entropy terms, respectively. PMID- 29042660 TI - Composition-dependent nanoelectronics of amido-phenazines: non-volatile RRAM and WORM memory devices. AB - A metal-free three component cyclization reaction with amidation is devised for direct synthesis of DFT-designed amido-phenazine derivative bearing noncovalent gluing interactions to fabricate organic nanomaterials. Composition-dependent organic nanoelectronics for nonvolatile memory devices are discovered using mixed phenazine-stearic acid (SA) nanomaterials. We discovered simultaneous two different types of nonmagnetic and non-moisture sensitive switching resistance properties of fabricated devices utilizing mixed organic nanomaterials: (a) sample-1(8:SA = 1:3) is initially off, turning on at a threshold, but it does not turn off again with the application of any voltage, and (b) sample-2 (8:SA = 3:1) is initially off, turning on at a sharp threshold and off again by reversing the polarity. No negative differential resistance is observed in either type. These samples have different device implementations: sample-1 is attractive for write once-read-many-times memory devices, such as novel non-editable database, archival memory, electronic voting, radio frequency identification, sample-2 is useful for resistive-switching random access memory application. PMID- 29042661 TI - Therapy of corneal endothelial dysfunction with corneal endothelial cell-like cells derived from skin-derived precursors. AB - Corneal endothelial dysfunction occurs when corneal endothelial cells (CECs) are dramatically lost and eventually results in vision loss. Corneal transplantation is the only solution at present. However, corneal transplantation requires a fresh human cornea and there is a worldwide shortage of donors. Therefore, finding new functional CECs to replace human CECs is urgent. Skin-derived precursors (SKPs) can be easily acquired and have multiple differential potential. We co-cultured human SKPs with B4G12 cells in serum-free medium and obtained abundant CEC-like cells which had similar morphology and characteristic to human CECs. CEC-like cells exerted excellent therapeutic effect when they were transplanted into rabbit and monkey corneal endothelial dysfunction models by injection method. This protocol enables efficient production of CEC-like cells from SKPs. The renewable cell source, novel derivation method and simple treatment strategy may lead to potential applications in cell replacement therapy for corneal endothelial dysfunction. PMID- 29042662 TI - Switching to PegIFNalpha-2b leads to HBsAg loss in patients with low HBsAg levels and HBV DNA suppressed by NAs. AB - Patients with low hepatitis B surface antigen (HBsAg) levels and hepatitis B virus (HBV) DNA suppression by nucleos(t)ide analogues (NAs) achieve high rate of HBsAg loss through switching to PegIFNalpha in pre-registration study. The aim of this study was to achieve higher rate of HBsAg loss through extended PegIFN treatment. 98 patients with HBsAg < 2,000 IU/ml and HBV DNA < 20 IU/ml were randomized to receive PegIFNalpha-2b or continuing NA therapy for 60 weeks. At the end of treatment (EOT) and end of follow-up (EOF), only patients who switched to PegIFNalpha-2b achieved HBsAg loss (32.6%) and HBsAg seroconversion (27.9% and 25.6%). Patients who switched to PegIFNalpha-2b also achieved higher HBeAg seroconversion rates (65.1%) and HBeAg loss (81.4% and 90.7%) than those who continued NAs treatment. On-treatment HBsAg declines predicted the responses at EOT, and HBsAg declines at post-baseline times predicted the responses at EOF. The rates of responses were not increased through extended PegIFNalpha treatment. For patients with low HBsAg and HBV suppression with NAs, switching to PegIFNalpha-2b significantly increased the rates of HBsAg loss and HBsAg seroconversion. HBsAg decline can predict the response of switching to PegIFNalpha-2b following from NAs. PMID- 29042663 TI - Comparative analysis of molecular and physiological traits between perennial Arabis alpina Pajares and annual Arabidopsis thaliana Sy-0. AB - Annual plants complete life cycle in a year while perennial plants maintain growth for several years. Arabis alpina, a polycarpic perennial, is a close relative of monocarpic annual Arabidopsis. Pajares is an accession of A. alpina requiring vernalization, a long-term cold for flowering. Arabidopsis shows holistic flowering whereas Pajares shows idiographic flowering, producing axillary branches under variable developmental phases from juvenile, adult vegetative to reproductive phases. To understand the molecular mechanism behind diverse phases of axillary branches, we analyzed the levels of primary miR156 expressions because miR156-SPL module is a key regulator for developmental phase transition. We found that in Pajares, miR156 levels were highly variable among the axillary branches, which causes differential sensitivity to vernalization. Thus, the axillary branches expressing high levels of miR156 remain in juvenile phase even after vernalization, whereas the axillary branches expressing low levels of miR156 produce flowers after vernalization. In contrast, every axillary branches of Arabidopsis winter annual Sy-0 expressed similar levels of miR156 and synchronously responded to vernalization, which causes holistic flowering. Therefore, we suggest that variable miR156 expression levels and the resulting differential response to vernalization among axillary branches are distinctive features determining polycarpic perenniality of A. alpina Pajares. PMID- 29042664 TI - Cationic double K-hole pre-edge states of CS2 and SF6. AB - Recent advances in X-ray instrumentation have made it possible to measure the spectra of an essentially unexplored class of electronic states associated with double inner-shell vacancies. Using the technique of single electron spectroscopy, spectra of states in CS2 and SF6 with a double hole in the K-shell and one electron exited to a normally unoccupied orbital have been obtained. The spectra are interpreted with the aid of a high-level theoretical model giving excellent agreement with the experiment. The results shed new light on the important distinction between direct and conjugate shake-up in a molecular context. In particular, systematic similarities and differences between pre-edge states near single core holes investigated in X-ray absorption spectra and the corresponding states near double core holes studied here are brought out. PMID- 29042665 TI - GDC-0449 improves the antitumor activity of nano-doxorubicin in pancreatic cancer in a fibroblast-enriched microenvironment. AB - Pancreatic cancer is one of the most lethal human cancers that currently does not have effective therapies. Novel treatments including nanomedicines and combination therapies are thus urgently needed for these types of deadly diseases. A key feature of pancreatic cancer is its tumor protective dense stroma, which is generated by cancer-associated fibroblasts (CAFs). The interaction between CAFs and pancreatic cancer cells abnormally activates sonic hedgehog (SHH) signaling and facilitates tumor growth, metastasis, and drug resistance. Here, we report that the commercial SHH inhibitor GDC-0449 reverses fibroblast-induced resistance to doxorubicin in Smoothened (SMO)-positive pancreatic cancer cells by downregulating SHH signaling proteins. Importantly, the synergistic combination of GDC-0449 with PEG-PCL-Dox exhibited potent antitumor efficacy in a BxPC-3 tumor xenograft model, whereas single treatments did not significantly inhibit tumor growth. Our findings reveal a potential treatment strategy for fibroblast-enriched pancreatic cancer. PMID- 29042666 TI - Equation of state and self-bound droplet in Rabi-coupled Bose mixtures. AB - Laser induced transitions between internal states of atoms have been playing a fundamental role to manipulate atomic clouds for many decades. In absence of interactions each atom behaves independently and their coherent quantum dynamics is described by the Rabi model. Since the experimental observation of Bose condensation in dilute gases, static and dynamical properties of multicomponent quantum gases have been extensively investigated. Moreover, at very low temperatures quantum fluctuations crucially affect the equation of state of many body systems. Here we study the effects of quantum fluctuations on a Rabi-coupled two-component Bose gas of interacting alkali atoms. The divergent zero-point energy of gapless and gapped elementary excitations of the uniform system is properly regularized obtaining a meaningful analytical expression for the beyond mean-field equation of state. In the case of attractive inter-particle interaction we show that the quantum pressure arising from Gaussian fluctuations can prevent the collapse of the mixture with the creation of a self-bound droplet. We characterize the droplet phase and discover an energetic instability above a critical Rabi frequency provoking the evaporation of the droplet. Finally, we suggest an experiment to observe such quantum droplets using Rabi coupled internal states of K39 atoms. PMID- 29042667 TI - MG-132 reduces virus release in Bovine herpesvirus-1 infection. AB - Bovine herpesvirus 1 (BoHV-1) can provoke conjunctivitis, abortions and shipping fever. BoHV-1 infection can also cause immunosuppression and increased susceptibility to secondary bacterial infections, leading to pneumonia and occasionally to death. Herein, we investigated the influence of MG-132, a proteasome inhibitor, on BoHV-1 infection in bovine kidney (MDBK) cells. Infection of MDBK cells with BoHV-1 induces apoptotic cell death that enhances virus release. Whereas, MG-132 inhibited virus-induced apoptosis and stimulated autophagy. Protein expression of viral infected cell protein 0 (bICP0), which is constitutively expressed during infection and is able to stimulate Nuclear factor kappa B (NF-kappaB), was completely inhibited by MG-132. These results were accompanied by a significant delay in the NF-kappaB activation. Interestingly, the efficient virus release provoked by BoHV-1-induced apoptosis was significantly reduced by MG-132. Overall, this study suggests that MG-132, through the activation of autophagy, may limit BoHV-1 replication during productive infection, by providing an antiviral defense mechanism. PMID- 29042668 TI - Signalling mechanisms in PAF-induced intestinal failure. AB - Capillary leakage syndrome, vasomotor disturbances and gut atony are common clinical problems in intensive care medicine. Various inflammatory mediators and signalling pathways are involved in these pathophysiological alterations among them platelet-activating factor (PAF). The related signalling mechanisms of the PAF-induced dysfunctions are only poorly understood. Here we used the model of the isolated perfused rat small intestine to analyse the role of calcium (using calcium deprivation, IP-receptor blockade (2-APB)), cAMP (PDE-inhibition plus AC activator), myosin light chain kinase (inhibitor ML-7) and Rho-kinase (inhibitor Y27632) in the following PAF-induced malfunctions: vasoconstriction, capillary and mucosal leakage, oedema formation, malabsorption and atony. Among these, the PAF-induced vasoconstriction and hyperpermeability appear to be governed by similar mechanisms that involve IP3 receptors, extracellular calcium and the Rho kinase. Our findings further suggest that cAMP-elevating treatments - while effective against hypertension and oedema - bear the risk of dysmotility and reduced nutrient uptake. Agents such as 2-APB or Y27632, on the other hand, showed no negative side effects and improved most of the PAF-induced malfunctions suggesting that their therapeutic usefulness should be explored. PMID- 29042669 TI - RNA editing by ADAR1 regulates innate and antiviral immune functions in primary macrophages. AB - ADAR1-dependent A-to-I editing has recently been recognized as a key process for marking dsRNA as self, therefore, preventing innate immune activation and affecting the development and resolution of immune-mediated diseases and infections. Here, we have determined the role of ADAR1 as a regulator of innate immune activation and modifier of viral susceptibility in primary myeloid and lymphoid cells. We show that ADAR1 knockdown significantly enhanced interferon, cytokine and chemokine production in primary macrophages that function as antiviral paracrine factors, rendering them resistant to HIV-1 infection. ADAR1 knockdown induced deregulation of the RLRs-MAVS signaling pathway, by increasing MDA5, RIG-I, IRF7 and phospho-STAT1 expression, an effect that was partially rescued by pharmacological blockade of the pathway. In summary, our results demonstrate a role of ADAR1 in regulating innate immune function in primary macrophages, suggesting that macrophages may play an essential role in disease associated to ADAR1 dysfunction. We also show that viral inhibition is exclusively dependent on innate immune activation consequence of ADAR1 knockdown, pointing towards ADAR1 as a potential target to boost antiviral immune response. PMID- 29042670 TI - From EST to novel spider silk gene identification for production of spidroin based biomaterials. AB - A cDNA library from a pool of all the seven silk glands from a tropical spider species was constructed. More than 1000 expressed sequence tag (EST) clones were created. Almost 65% of the EST clones were identified and around 50% were annotated. The cellular and functional distribution of the EST clones indicated high protein synthesis activity in spider silk glands. Novel clones with repetitive amino acid sequences, which is one of the most important characteristics of spider silk genes, were isolated. One of these clones, namely TuSp2 in current research, contains two almost identical fragments with one short C-terminal domain. Reverse transcription (RT) PCR and expression analysis showed that it is expressed in the tubuliform gland and involved in eggcase silk formation. Furthermore, its single repetitive domain can be induced to form various types of materials, including macroscopic fibers, transparent film and translucent hydrogel. This study implies promising potentials for future identification of novel spidroins and development of new spidroin-based biomaterials. PMID- 29042671 TI - Credit assignment between body and object probed by an object transportation task. AB - It has been proposed that learning from movement errors involves a credit assignment problem: did I misestimate properties of the object or those of my body? For example, an overestimate of arm strength and an underestimate of the weight of a coffee cup can both lead to coffee spills. Though previous studies have found signs of simultaneous learning of the object and of the body during object manipulation, there is little behavioral evidence about their quantitative relation. Here we employed a novel weight-transportation task, in which participants lift the first cup filled with liquid while assessing their learning from errors. Specifically, we examined their transfer of learning when switching to a contralateral hand, the second identical cup, or switching both hands and cups. By comparing these transfer behaviors, we found that 25% of the learning was attributed to the object (simply because of the use of the same cup) and 58% of the learning was attributed to the body (simply because of the use of the same hand). The nervous system thus seems to partition the learning of object manipulation between the object and the body. PMID- 29042672 TI - Bio-based coatings for reducing water sorption in natural fibre reinforced composites. AB - In this study, bio-based coatings were used for reducing water sorption of composites containing flame retardant treated natural fibres and phenolic resin. Two types of coatings; polyfurfuryl alcohol resin (PFA) and polyurethane (PU) were used on the composites and compared with a water resistant market product. Uncoated and coated samples were conditioned at 90 degrees C and relative humidity of 90% for three days and the relative moisture content and mechanical properties after conditioning were analysed. In addition, the changes in the weight loss of the conditioned samples were also investigated by thermogravimetric analysis. The moisture diffusion characteristics of coated laminates were also studied at room temperature under water immersion conditions. PFA coated samples showed better moisture resistance and mechanical performance than other bio-based coatings when subjected to long term environmental aging. PMID- 29042673 TI - Simultaneous hydrolysis of carbaryl and chlorpyrifos by Stenotrophomonas sp. strain YC-1 with surface-displayed carbaryl hydrolase. AB - Many sites are often co-contaminated with multiple pesticides. To date, there are no reports on simultaneous degradation of different classes of pesticides by a natural microorganism. In this work, we aim at constructing a live biocatalyst able to simultaneously hydrolyze carbaryl and chlorpyrifos. For this purpose, carbaryl hydrolase (CH) was displayed on the cell surface of a chlorpyrifos degrading bacterium Stenotrophomonas sp. strain YC-1 using N- and C-terminal domain of ice nucleation protein (INPNC) from Pseudomonas syringae INA5 as an anchoring motif. The localization of INPNC-CH fusion protein in the outer membrane fraction was demonstrated by cell fractionation followed by Western blot analysis. Surface display of INPNC-CH was further confirmed by proteinase accessibility experiment and immunofluorescence microscope. CH was present in an active form on cell surface without causing any growth inhibition, suggesting that the INP-based display system is a useful tool for surface expression of macromolecular heterologous proteins on the bacterial cell surface. Because surface-displayed CH has free access to pesticides, this bacterium can be used as a whole-cell biocatalyst for efficient hydrolysis of pesticides. PMID- 29042674 TI - Knockout of maternal CD163 protects fetuses from infection with porcine reproductive and respiratory syndrome virus (PRRSV). AB - After infection of the porcine dam at about 90 days of gestation, porcine reproductive and respiratory syndrome virus (PRRSV) crosses the placenta and begins to infect fetuses. Outcomes of include abortion, fetal death and respiratory disease in newborn piglets. CD163 is the receptor for the virus. In this study, CD163-positive fetuses, recovered between 109 days of gestation or 20 days after maternal infection, were completely protected from PRRSV in dams possessing a complete knockout of the CD163 receptor. The results demonstrate a practical means to eliminate PRRSV-associated reproductive disease, a major source of economic hardship to agriculture. PMID- 29042675 TI - Optical switching of defect charge states in 4H-SiC. AB - We demonstrate optically induced switching between bright and dark charged divacancy defects in 4H-SiC. Photoluminescence excitation and time-resolved photoluminescence measurements reveal the excitation conditions for such charge conversion. For an energy below 1.3 eV (above 950 nm), the PL is suppressed by more than two orders of magnitude. The PL is recovered in the presence of a higher energy repump laser with a time-averaged intensity less than 0.1% that of the excitation field. Under a repump of 2.33 eV (532 nm), the PL increases rapidly, with a time constant 30 MUs. By contrast, when the repump is switched off, the PL decreases first within 100-200 MUs, followed by a much slower decay of a few seconds. We attribute these effect to the conversion between two different charge states. Under an excitation at energy levels below 1.3 eV, VSiVC0 are converted into a dark charge state. A repump laser with an energy above 1.3 eV can excite this charged state and recover the bright neutral state. This optically induced charge switching can lead to charge-state fluctuations but can be exploited for long-term data storage or nuclear-spin-based quantum memory. PMID- 29042676 TI - Semiochemical mediated enhancement of males to complement sterile insect technique in management of the tephritid pest Bactrocera tryoni (Froggatt). AB - Queensland fruit fly, Bactrocera tryoni (Froggatt), is the most significant pest of Australia's $9 billion horticulture industry. The sterile insect technique (SIT) and cue-lure (a synthetic analogue of raspberry ketone (RK))-based male annihilation technique (MAT) are two of the most effective management tools against this pest. However, combining these two approaches is considered incompatible as MAT kills sterile and 'wild' males indiscriminately. In the present study we tested the effect of pre-release feeding of B. tryoni on RK on their post-release survival and response to MAT in field cages and in a commercial orchard. In both settings, survival was higher for RK supplemented adults compared to control (i.e. RK denied) adults. A lower number of RK supplemented sterile males were recaptured in MAT baited traps in both the field cages and orchard trials compared to RK denied sterile males. The advantage of this novel "male replacement" approach (relatively selective mortality of wild males at lure-baited traps while simultaneously releasing sterile males) is increasing the ratio of sterile to wild males in the field population, with potential for reducing the number of sterile males to be released. PMID- 29042677 TI - High resolution, high speed, long working distance, large field of view confocal fluorescence microscope. AB - Confocal fluorescence microscopy is often used in brain imaging experiments, however conventional confocal microscopes are limited in their field of view, working distance, and speed for high resolution imaging. We report here the development of a novel high resolution, high speed, long working distance, and large field of view confocal fluorescence microscope (H2L2-CFM) with the capability of multi-region and multifocal imaging. To demonstrate the concept, a 0.5 numerical aperture (NA) confocal fluorescence microscope is prototyped with a 3 mm * 3 mm field of view and 12 mm working distance, an array of 9 beams is scanned over the field of view in 9 different regions to speed up the acquisition time by a factor of 9. We test this custom designed confocal fluorescence microscope for future use with brain clarification methods to image large volumes of the brain at subcellular resolution. This multi-region and multi-spot imaging method can be used in other imaging modalities, such as multiphoton microscopes, and the field of view can be extended well beyond 12 mm * 12 mm. PMID- 29042678 TI - Carnosine scavenging of glucolipotoxic free radicals enhances insulin secretion and glucose uptake. AB - The worldwide prevalence of diabetes has risen to 8.5% among adults, which represents a staggering rise in prevalence from 4.7% in 1980. Whilst some treatments work by increasing insulin secretion, over time their effectiveness decreases. We aim to increase insulin secretion by developing strategies that work through mechanisms independent of current treatment options. Isolated CD1 mouse islets, INS-1 pancreatic beta-cells, or C2C12 mouse myotubes were incubated in standard tissue culture media, or media supplemented with 28 mM glucose, 200 MUM palmitic acid, and 200 MUM oleic acid as a cellular model of diabetic glucolipotoxicity. Intracellular reactive species content was assayed using 2',7' dichlorofluorescein diacetate dye, inducible nitric oxide synthase levels determined by Western blot, 3-nitrotyrosine and 4-hydrpxnonenal both assayed by ELISA, insulin secretion quantified using ELISA or radioimmunoassay, and glucose uptake determined through 2-deoxy glucose 6 phosphate luminescence. Our data indicate that carnosine, a histidine containing dipeptide available through the diet, is an effective scavenger of each of the aforementioned reactive species. This results in doubling of insulin secretion from isolated mouse islets or INS-1 beta-cells. Crucially, carnosine also reverses glucolipotoxic inhibition of insulin secretion and enhances glucose uptake into skeletal muscle cells. Thus, carnosine, or non-hydrolysable carnosine analogs, may represent a new class of therapeutic agent to fight type 2 diabetes. PMID- 29042679 TI - Municipal sewage sludge compost promotes Mangifera persiciforma tree growth with no risk of heavy metal contamination of soil. AB - Application of sewage sludge compost (SSC) as a fertilizer on landscaping provides a potential way for the effective disposal of sludge. However, the response of landscape trees to SSC application and the impacts of heavy metals from SSC on soil are poorly understood. We conducted a pot experiment to investigate the effects of SSC addition on Mangifera persiciforma growth and quantified its uptake of heavy metals from SSC by setting five treatments with mass ratios of SSC to lateritic soil as 0%:100% (CK), 15%:85% (S15), 30%:70% (S30), 60%:40% (S60), and 100%:0% (S100). As expected, the fertility and heavy metal concentrations (Cu, Zn, Pb and Cd) in substrate significantly increased with SSC addition. The best performance in terms of plant height, ground diameter, biomass and N, P, K uptake were found in S30, implying a reasonable amount of SSC could benefit the growth of M. persiciforma. The concentrations of Cu, Pb and Cd in S30 were insignificantly different from CK after harvest, indicating that M. persiciforma reduced the risk of heavy metal contamination of soil arising from SSC application. This study suggests that a reasonable rate of SSC addition can enhance M. persiciforma growth without causing the contamination of landscaping soil by heavy metals. PMID- 29042680 TI - Sperm-borne miR-449b influences cleavage, epigenetic reprogramming and apoptosis of SCNT embryos in bovine. AB - Accumulating evidence indicates the absence of paternally derived miRNAs, piwiRNAs, and proteins may be one important factor contributing to developmental failure in somatic cell cloned embryos. In the present study, we found microRNA 449b (miR-449b) was highly expressed in sperm. Target gene predictions and experimental verification indicate that several embryonic development-related genes, including CDK6, c-MYC, HDAC1 and BCL-2, are targets of miR-449b. We therefore investigated the role of miR-449b using somatic cell nuclear transfer (SCNT) embryo model. Bovine fetal fibroblasts, expressing miR-449b through a doxycycline (dox) induced expression system were used as nuclear donor cells for SCNT. The results showed that miR-449b expression in SCNT embryos significantly enhanced the cleavage rate at 48 h after activation and the levels of H3K9 acetylation at the 2-cell to 8-cell stages, meanwhile, significantly decreased the apoptosis index of blastocysts. In addition, we verified miR-449b could regulate the expression levels of CDK6, c-MYC, HDAC1 and BCL-2. In conclusion, the present study shows that miR-449b expression improves the first cleavage division, epigenetic reprogramming and apoptotic status of bovine preimplantation cloned embryos. PMID- 29042681 TI - The construction of intrahepatic cholangiocarcinoma model in zebrafish. AB - Intrahepatic cholangiocarcinoma (ICC) is a highly malignant tumor, difficult to diagnose even at an early stage. In this study, we successfully constructed an nras 61K -induced ICC model in zebrafish. Transcriptome analysis and gene set enrichment analysis (GSEA) of liver samples of the ICC and WT (wild-type) zebrafish revealed that the genes differentially expressed between the two groups were mainly involved in focal adhesion, chemokine signaling and metabolic pathways. Analysis of DNA methylomes revealed that compared with WT samples, methylated genes in ICC samples were enriched in functions associated with cellular, single-organism and metabolic processes. In particular, our result discovered eleven potential biomarker genes of ICC which were conserved between zebrafish and humans. Moreover, three potential biomarker genes were hypomethylated in the tumorigenesis of ICC: ehf, epha4 and itgb6. In summary, our study provides a comprehensive analysis of molecular mechanisms accompanying the progressive nras 61K -induced ICC. This work indicates that our transgenic zebrafish could be a valuable model, not only for studying liver cancer, but also for exploring new therapeutic targets. PMID- 29042683 TI - Hormone Signaling Regulates Nymphal Diapause in Laodelphax striatellus (Hemiptera: Delphacidae). AB - Diapause is a physiological adaptation that allows an organism to survive adverse environmental conditions. Diapause occurs at a specific developmental stage in each species. There are few reports regarding the molecular regulatory mechanism of nymphal diapause in Laodelphax striatellus, which is an important graminaceous crop pest. Our previous studies identified the conditions for nymphal diapause in this species. Here, we combined RNA sequencing transcriptomics and quantitative proteomic analyses to identify nymphal diapause-related genes and proteins. The analysis of differentially regulated genes identified four gene/protein pairs that were synchronously up-regulated, and six gene/protein pairs that were synchronously down-regulated, suggesting that these genes may regulate nymphal diapause. The up-regulated gene juvenile hormone acid methyl transferase (JHAMT) and the down-regulated gene cytochrome P450 monooxygenase (CYP314A1, Shd) were chosen for further functional studies. After knocking-down of LsJHAMT and LsShd in vivo by RNA interference, the titer of JH III and 20E decreased significantly, and the duration of the nymphal development period was severely altered. Thus LsJHAMT and LsShd regulated JH III and 20E titers in the hemolymph to control the nymphal diapause status. This study may lead to new information on the regulation nymphal diapause of this important agricultural insect pest. PMID- 29042682 TI - IL-12 stimulates CTLs to secrete exosomes capable of activating bystander CD8+ T cells. AB - An effective cytotoxic T lymphocyte (CTL) response against intracellular pathogens is generally accomplished by immense CTL expansion and activation, which can destroy infected cells. Vigorous immune responses can lead to activation of bystander CD8+ T cells, but the contribution from antigen-specific CTLs is not well understood. We found that CTLs secrete extracellular vesicles following antigen stimulation. These CTL-derived vesicles contain CTL proteins and exhibit markers and size profiles consistent with exosomes. Interestingly, further stimulation of CTLs with IL-12 impacts exosome size and leads to selective enrichment of certain exosomal proteins. More important, exosomes from IL-12-stimulated CTLs directly activated bystander naive CD8+ T cells to produce interferon-gamma (IFNgamma) and granzyme B (GZB) in the absence of antigens, whereas control exosomes derived from antigen-stimulated CTLs did not. In addition, IL-12 induced exosomes are able to strengthen the effects of weak antigen stimulation on CTLs. Proteomic analysis demonstrates that IL-12 stimulation alters catalytic and binding activities of proteins in CTL exosomes. Our findings indicate that the biological function and morphology of exosomes secreted by CTLs can be influenced by the type of stimulation CTLs receive. Thus, a fully functional, ongoing, antigen-specific CTL response may influence bystander CD8+ T cells through secretion of exosomes. PMID- 29042685 TI - Cancer: Growth restriction. PMID- 29042686 TI - Glia: Pulling in opposite directions. PMID- 29042684 TI - A single point mutation in class III ribonucleotide reductase promoter renders Pseudomonas aeruginosa PAO1 inefficient for anaerobic growth and infection. AB - Pseudomonas aeruginosa strain PAO1 has become the reference strain in many laboratories. One enzyme that is essential for its cell division is the ribonucleotide reductase (RNR) enzyme that supplies the deoxynucleotides required for DNA synthesis and repair. P. aeruginosa is one of the few microorganisms that encodes three different RNR classes (Ia, II and III) in its genome, enabling it to grow and adapt to diverse environmental conditions, including during infection. In this work, we demonstrate that a lack of RNR activity induces cell elongation in P. aeruginosa PAO1. Moreover, RNR gene expression during anaerobiosis differs among P. aeruginosa strains, with class III highly expressed in P. aeruginosa clinical isolates relative to the laboratory P. aeruginosa PAO1 strain. A single point mutation was identified in the P. aeruginosa PAO1 strain class III RNR promoter region that disrupts its anaerobic transcription by the Dnr regulator. An engineered strain that induces the class III RNR expression allows P. aeruginosa PAO1 anaerobic growth and increases its virulence to resemble that of clinical strains. Our results demonstrate that P. aeruginosa PAO1 is adapted to laboratory conditions and is not the best reference strain for anaerobic or infection studies. PMID- 29042687 TI - Cognitive neuroscience: Spatial navigation takes two. PMID- 29042688 TI - Neurodegeneration: An independent route to toxicity. PMID- 29042689 TI - Behavioural neuroscience: Fighting females. PMID- 29042691 TI - Gastric cancer: The gastric microbiota - bacterial diversity and implications. PMID- 29042692 TI - NAFLD: HIF2alpha: a new therapeutic target for NAFLD. PMID- 29042690 TI - Motor cortex - to act or not to act? AB - The motor cortex is a large frontal structure in the cerebral cortex of eutherian mammals. A vast array of evidence implicates the motor cortex in the volitional control of motor output, but how does the motor cortex exert this 'control'? Historically, ideas regarding motor cortex function have been shaped by the discovery of cortical 'motor maps' - that is, ordered representations of stimulation-evoked movements in anaesthetized animals. Volitional control, however, entails the initiation of movements and the ability to suppress undesired movements. In this article, we highlight classic and recent findings that emphasize that motor cortex neurons have a role in both processes. PMID- 29042693 TI - Occult Sources of Bleeding in Blunt Trauma : A Narrative Review. AB - Worldwide, hemorrhagic shock in major trauma remains a major potentially preventable cause of death. Controlling bleeding and subsequent coagulopathy is a big challenge. Immediate assessment of unidentified bleeding sources is essential in blunt trauma patients with hemorrhagic shock. Chest/pelvic X-ray in conjunction with ultrasonography have been established classically as initial diagnostic imaging modalities to identify the major sources of internal bleeding including intra-thoracic, intra-abdominal, or retroperitoneal hemorrhage related to pelvic fracture. Massive soft tissue injury, regardless of whether isolated or associated with multiple injuries, occasionally causes extensive hemorrhage and acute traumatic coagulopathy. Specific types of injuries, including soft tissue injury or retroperitoneal hemorrhage unrelated to pelvic fracture, can potentially be overlooked or be considered "occult" causes of bleeding because classical diagnostic imaging often cannot exclude such injuries. The purpose of this narrative review article is to describe "occult" or unusual sources of bleeding associated with blunt trauma. PMID- 29042694 TI - Immunohistochemistry of Vasohibin-2 in Human Kidney Disease : Implications in Impaired Glucose Tolerance and Reduced Renal Function. AB - Several angiogenesis-related factors are known to play important roles in the pathogenesis of kidney disease. Vasohibin-2 (VASH-2) was recently reported as a novel proangiogenic factor. Although VASH-2 was demonstrated to accelerate tumor angiogenesis, its roles in non-tumor processes including renal disease have not been well elucidated yet. Here, we performed a retrospective study including an immunohistochemical analysis of human kidney biopsy specimens from 82 Japanese patients with a variety of kidney diseases, and we evaluated the correlations between the immunoreactivity of VASH-2 and the patients' clinicopathological parameters. VASH-2 immunoreactivity was detected in varying degrees in renal tubules as well as in peritubular capillaries and vasa recta. The cortical and medullary tubule VASH-2+ scores were correlated with the presence of hypertension, and the medullary tubule VASH-2+ score was significantly correlated with the blood glucose (p=0.029, r=0.35) and hemoglobin A1c levels (p=0.0066, r=0.39). Moreover, decreased VASH-2+ scores in the vasa recta were associated with reduced renal function (p=0.0003). These results suggest that VASH-2 could play an important role in the pathogenesis of renal diseases, and that VASH-2 is closely associated with hypertension and impaired glucose tolerance. PMID- 29042695 TI - Living Donor Liver Transplantation for Acute Liver Failure : Comparing Guidelines on the Prediction of Liver Transplantation. AB - Determining the indications for and timing of liver transplantation (LT) for acute liver failure (ALF) is essential. The King's College Hospital (KCH) guidelines and Japanese guidelines are used to predict the need for LT and the outcomes in ALF. These guidelines' accuracy when applied to ALF in different regional and etiological backgrounds may differ. Here we compared the accuracy of new (2010) Japanese guidelines that use a simple scoring system with the 1996 Japanese guidelines and the KCH criteria for living donor liver transplantation (LDLT). We retrospectively analyzed 24 adult ALF patients (18 acute type, 6 sub acute type) who underwent LDLT in 1998-2009 at our institution. We assessed the accuracies of the 3 guidelines' criteria for ALF. The overall 1-year survival rate was 87.5%. The new and previous Japanese guidelines were superior to the KCH criteria for accurately predicting LT for acute-type ALF (72% vs. 17%). The new Japanese guidelines could identify 13 acute-type ALF patients for LT, based on the timing of encephalopathy onset. Using the previous Japanese guidelines, although the same 13 acute-type ALF patients (72%) had indications for LT, only 4 patients were indicated at the 1st step, and it took an additional 5 days to decide the indication at the 2nd step in the other 9 cases. Our findings showed that the new Japanese guidelines can predict the indications for LT and provide a reliable alternative to the previous Japanese and KCH guidelines. PMID- 29042696 TI - The Usefulness of Colonoscopy for the Detection of Ileal Involvement in Intestinal Follicular Lymphoma Patients. AB - To evaluate the usefulness of colonoscopy for the detection of ileal involvement in patients with intestinal follicular lymphoma, seventeen patients with intestinal follicular lymphoma who underwent colonoscopy and biopsy sampling from the terminal ileum were enrolled. The patients were divided into 2 groups: cases with ileal involvement (n=6) and cases without ileal involvement (n=11). Patients' clinical backgrounds were compared between the two groups. Subsequently, 10 board-certified endoscopists independently evaluated the endoscopic pictures and determined whether the ileum was involved with follicular lymphoma. Infiltration of follicular lymphoma cells were identified in 6 patients (35.3%). Cases with positive ileal involvement were diagnosed with follicular lymphoma at a younger age than were cases without ileal involvement (55.4+/-7.4 vs. 68.1+/-10.3 years, p=0.011). Macroscopically, in patients with ileal involvement, there were multiple polypoid elevations smaller than 5 mm in 4 cases, single polypoid elevation smaller than 5 mm in 1 case, and single polypoid elevation larger than 5 mm in 1 case. In patients without ileal involvement, there were no lesions in the terminal ileum in 7 cases, and multiple polypoid elevations smaller than 5 mm were seen in 4 cases. The accuracy of the macroscopic evaluation by 10 board-certified endoscopists was 68.8%. Colonoscopy is particularly recommended during the initial workup of patients with follicular lymphoma diagnosed at age <= 60 years. The diagnosis of ileal involvement based on morphology alone is difficult; thus, biopsy and pathologic diagnosis are required for accurate diagnosis. PMID- 29042697 TI - Vaginoplasty with a Pudendal-groin Flap in Male-to-female Transsexuals. AB - Many vaginoplasty techniques have been introduced to improve the outcomes of sex reassignment surgery for male-to-female transsexuals. Some vaginoplasty patients still require additional skin grafts, making dilation mandatory to overcome shrinkage. We developed a new vaginoplasty method (called the "pudendal-groin flap") that uses pudendal-groin flaps. One of this procedure's advantages is that skin grafts are unnecessary, even for patients with small penises and scrotums. We introduce the procedure here and describe our evaluation of its utility. We retrospectively analyzed the cases of the 15 patients who underwent vaginoplasty using pudendal-groin flaps from May 2010 to January 2016 at our institution. We compared the complications as well as the functional and aesthetic outcomes with those of previous studies. The most common complication was bleeding, which occurred at the corpus spongiosum or while creating a new vaginal cavity. Bleeding can be reduced with more careful hemostasis and dissection. Aside from inadequate vaginal depth in one patient, the incidence of other complications, sexual intercourse, and aesthetic outcomes were acceptable. The pudendal- groin flap is thin and pliable and can create sufficient vaginal depth without skin grafts. The resulting scar is inconspicuous. Our findings suggest that vaginoplasty using the pudendal-groin flap method is feasible. PMID- 29042698 TI - Evaluating Low-kV Dual-source CT Angiography by High-pitch Spiral Acquisition and Iterative Reconstruction in Pediatric Congenital Heart Disease Patients. AB - We retrospectively evaluated the qualities of pediatric cardiovascular dual source computed tomography (DSCT) images reconstructed by sinogram-affirmed iterative reconstruction (SAFIRE) and filtered back projection (FBP). We analyzed the cases of 287 congenital heart disease (CHD) patients < 5 years old, referred to our department in August 2013-March 2015. We divided them into two groups according to tube voltage (70 kVp, n=147; 80 kVp, n=140). All images were acquired by a CARE kV system and reconstructed by FBP and SAFIRE. The attenuation, noise, and signal-to-noise ratio (SNR) at each region of the heart and great vessels were measured. The volume CT dose index and dose-length product values were recorded. Compared to FBP, reconstruction by SAFIRE showed that the attenuation volume was significantly lower by 0.4% except for the ascending aorta (p<0.05), the noise value was lower by about 20% (p<0.05), and the SNR was higher by approx. 25% (p<0.05). The radiation dose in the 70 kVp group was significantly lower than that in the 80 kVp group. No significant differences in SNR were observed between the patient groups. DSCT image acquisition with SAFIRE using the CARE kV system results in low image noise and radiation dose in pediatric patients with CHD. PMID- 29042699 TI - Arthroscopic Repair of the Medial Meniscus Radial/Oblique Tear Prevents the Progression of Meniscal Extrusion in Mildly Osteoarthritic Knees. AB - Extrusion of the medial meniscus (MM) is associated with knee joint pain in osteoarthritic knees. The relationships among MM radial/oblique tears, MM extrusion (MME), and the effect of arthroscopic meniscal repair are not established. Here we evaluated the effects of arthroscopic all-inside MM repair on MME and the clinical outcomes in patients with radially oriented MM tears and mildly osteoarthritic knees. Twenty patients with a symptomatic radial or oblique tear of the MM posterior segment, MME >=2.5 mm, and mildly osteoarthritic knees were treated using FasT-Fix 360 All-inside Meniscal Suture devices. We used magnetic resonance imaging (MRI) to measure the patients' MM body width (MMBW), absolute MME, and relative MME. The Japanese Knee Injury and Osteoarthritis Outcome Score, Lysholm, Tegner, IKDC Subjective Knee Evaluation, and Visual Analogue Scale scores were obtained. Arthroscopic all-inside MM repair prevented increases of absolute and relative MME. The preoperative and 3- and 12-month MRI based MMBW values were similar. Over a 24-month follow-up after the MM repairs, the clinical scores showed significant improvements. Our results suggest that all inside meniscal repairs would be useful in preventing the progression of MME in patients suffering from symptomatic MM radial/oblique tears associated with mildly osteoarthritic knees. PMID- 29042700 TI - Preoperative Risk Factors for Conversion of Laparoscopic Cholecystectomy to Open Cholecystectomy and the Usefulness of the 2013 Tokyo Guidelines. AB - To identify predictive factors for conversion from laparoscopic cholecystectomy (LC) to open cholecystectomy performed for mixed indications as an acute or elective procedure. We retrospectively analyzed the data of 236 consecutive cases of LC performed in our department between January 2012 and January 2015, and evaluated preoperative risk factors for conversion and the usefulness of the 2013 Tokyo guidelines (TG2013) for diagnosing acute cholecystitis. The conversion rate in our series was 8% (19/236 cases). The following independent predictive factors of conversion were identified (p<=0.04): previous upper abdominal surgery (odds ratio (OR), 14.6), pericholecystic fluid (OR, 10.04), acute cholecystitis (OR, 7.81), and emergent LC (OR, 15.8). Specifically for patients with acute cholecystitis defined using the 2013 Tokyo guidelines, use of an antiplatelet or anticoagulant drug for cardiovascular disease (p=0.043), previous upper abdominal surgery (p<0.031) and a resident as operator (p=0.041) were predictive factors. The risk factors for conversion identified herein could help to predict the difficulty of the procedure and could be used by surgeons to better inform patients regarding the risks for conversion. The TG2013 can be an effective tool for diagnosing acute cholecystitis to make informed clinical decisions regarding the optimal procedure for a patient. PMID- 29042701 TI - Direct Damage to a Vertebral Artery Better Predicts a Vertebral Artery Injury than Elongation in Cervical Spine Dislocation. AB - Cervical spine dislocation and fracture of a transverse process are isolated risk factors for vertebral artery injuries (VAIs), which can cause a life-threatening ischemic stroke. Since in vivo experiments are not possible, it has not been unclear whether damage to or extension of vertebral arteries is more predictive of a VAI. To identify the imaging characteristics associated with VAI, we analyzed 36 vertebral arteries from 22 cervical spine dislocation patients who underwent computed tomography angiography (Aug. 2008-Dec. 2014). We evaluated (1) the posttraumatic elongation of the vertebral artery and (2) the presence of fracture involving the transverse foramen. VAI was found in 20 (56%) of the 36 vertebral arteries. The rate of residual shift (vertebral artery elongation) was not markedly different between the VAI and no-VAI groups. However, the rate of >1 mm displacement into the foramen and that of fracture with gross displacement (>=2 mm) differed significantly between the groups. We found that greater displacement of fractured transverse processes with cervical spine dislocation was a risk factor for VAI. These results suggest that direct damage to the vertebral arteries by transverse process fragments is more likely to predict a VAI compared to elongation, even in cervical spine dislocation. PMID- 29042702 TI - Genetic Factors of Low-responsiveness to Hepatitis B Virus Vaccine Confirms the Importance of Human Leukocyte Antigen Class II Types in a Japanese Young Adult Population. AB - We investigated the genetic mechanisms underlying the association between human leukocyte antigen (HLA) types and the immune response to hepatitis B virus (HBV) vaccination in 84 healthy Japanese adults, and found that the HLA-DRB1*04 and HLA DQB1*03 frequencies were higher in the low responders (<10 mIU/ml; n=9, 10.7%) compared to the responders (>=10 mIU/ml, n=75, 89.3%). The combination of DRB1*04 and DQB1*03 was associated with a low response to vaccination. The DRB1*04 and DQB1*03 haplotypes' frequencies were significantly higher in the low responders compared to responders. Novel candidate HLA types may be important in Japanese individuals. PMID- 29042703 TI - Modification of Dentofacial Growth Associated with Goldenhar Syndrome. AB - The rare developmental defect, Goldenhar syndrome is characterized by complex craniofacial and dentofacial anomalies. Here we describe the successful orthodontic treatment of a 5-year-old Japanese Goldenhar syndrome patient with mild facial asymmetry, right microtia, right-side hearing loss, and tongue thrusting by a modification of dentofacial growth using a non-surgical orthopedic treatment approach. Improvement of the vertical discrepancies on the affected side and canted occlusal plane as well as mandibular deviation were achieved with a functional orthopaedic approach. Stable and acceptable occlusion were obtained over the 32-month post-retention period. A non-surgical orthodontic treatment approach offers satisfactory facial aesthetic outcomes in Goldenhar syndrome. PMID- 29042704 TI - Alternative to Rituximab Therapy for a Patient with Ankylosing Spondylitis Who Was Unable to Continue Anti-TNF Therapy. AB - We herein present a case of a 38-year-old man who had bamboo spine and severe sacroiliitis and who was diagnosed with ankylosing spondylitis (AS). Infliximab (IFX) markedly improved the axial symptom but was discontinued due to the side effect of peripheral neuropathy. Switching from IFX to etanercept worsened the side effect. Rituximab (RTX) administration elicited a good response without side effects. RTX might be a suitable option for AS therapy when TNF inhibitors are difficult to use. PMID- 29042705 TI - Ureterolithotripsy for a Ureteral Calculus at the Ureteroureterostomy of a Renal transplant Recipient. AB - We describe a 40-year-old living-donor renal-transplant recipient who underwent successful ureterolithotripsy. He had been on hemodialysis for >15 years pre transplant and underwent ureteroureterostomy along with the surgery. One year post-transplant, ultrasound examination demonstrated hydronephrosis, and CT showed a 6-mm ureteral calculus at the ureteroureterostomy site. No pain and no elevated serum creatinine were present. As the ureter was easily accessed, we performed a ureterolithotripsy, which would confirm whether a suture caused the calculus. Despite ureteral tortuosity, laser stone fragmentation succeeded. The calculus was completely removed with an antegrade guidewire. Mild postoperative ureteral stenosis resolved with a temporary ureteral stent without balloon dilation. Ureterolithotripsy is effective even in renal transplant recipients with ureteroureterostomy. PMID- 29042706 TI - Protective Effects of Bisoprolol against Acute Exacerbation in Moderate-to-Severe Chronic Obstructive Pulmonary Disease. AB - Although recent retrospective studies suggested that the use of beta-blockers appears to help improve the mortality rate and decrease the rate of exacerbation in chronic obstructive pulmonary disease (COPD) patients with heart failure, the effects of beta-blockers on COPD patients without heart failure have not been established. Based on previous reports, we have launched a multicenter, prospective, single-arm phase II study to evaluate the preventive effect of the cardioselective beta-blocker bisoprolol in COPD exacerbation, in Japanese individuals with moderate-to-severe COPD who do not have heart failure but do have hypertension requiring the use of medication. The primary endpoint is the rate of mild-to-severe COPD exacerbation. The results of this study will clarify whether bisoprolol can prevent exacerbation in COPD patients without heart failure. PMID- 29042707 TI - The effect of subglottic secretion drainage on the incidence of ventilator associated pneumonia. AB - BACKGROUND: Ventilator-Associated Pneumonia (VAP) is an undesired side effect of mechanical ventilation in intensive care units (ICUs). AIM: We evaluated whether endotracheal tubes with subglottic secretion drainage (SSD) would reduce the incidence of VAP among patients undergoing mechanical ventilation in an ICU. METHODS: The analysis of medical records of patients undergoing mechanical ventilation exceeding 48 h who were hospitalised in ICUs between 2007 and 2014 led to separating two groups of patients: those in whom no subglottic drainage was applied (NSSD) (records dating from 2007-2010) and those whose treatment involved endotracheal tubes with subglottic secretion drainage (SSD) (records dating from 2011-2014). RESULTS: Analysis of 1807 patients hospitalised in ICUs (804 NSSD patients and 1003 SSD patients). A difference was found in the frequency of VAP incidence between the groups (P<0.001). In the NSSD group as many as 84 cases were reported (incidence: 10.7%), and in the SSD group - 43 cases (incidence: 5.2%). The odds ratio (OR) and relative risk (RR) was 2.5. The probability of VAP was significantly higher in the NSSD group. The risk factors of VAP incidence (P<0.001) included the correlation between reintubation (R=0.271), tracheostomy (R=0.309) and bronchoscopy (R=0.316). CONCLUSION: Use of endotracheal tubes with subglottic secretion drainage in patients in the ICU on mechanical ventilation significantly reduced the incidence of VAP. PMID- 29042708 TI - Analysis of the seasonal incidence of acute respiratory infections including influenza (ARI) in the Czech Republic - possible contribution of the functional data boxplot in epidemiology. AB - AIMS: The detection of an epidemic outbreak is possible only if the baseline incidence level of a given disease is well defined. The determination of the baseline is complicated by the presence of epidemic outbreaks in historical data. The aim of the paper is to provide a new way of determining the baseline. METHODS: The analyzed data containing weekly records on the incidence of acute respiratory infections including influenza (ARI) in the Czech Republic and its regions are taken from the nationwide surveillance system; data on 15 seasons from 2001/02 to 2015/16 are included. Functional boxplots of the data are constructed and five distinct methods (componentwise mean, componentwise median, median, trimmed mean, and adjusted mean) were used for the computation of the baseline level function. RESULTS: It was shown that the methods based on functional data analysis could successfully overcome the problems that arise when the conventional methods are used for the determination of the baseline function. CONCLUSION: The functional boxplot - a new statistical tool - can bring not only a transparent visualisation of comprehensive data, but can also help epidemiologists and other public health experts to determine the baseline incidence level of a given disease as well as to detect unusual epidemic seasons. PMID- 29042709 TI - Derivation and basic characterization of colorectal carcinoma primary cell lines. AB - BACKGROUND: Colorectal carcinoma is one of the most common malignancies in western countries. Among different approaches to its research, primary cancer cell lines can play an important role. AIM: The main purposes of this study were: 1) to establish an effective and reproducible method of colorectal cancer cell isolation and cultivation from primary tumours and lymph node metastases and 2) to elucidate the biological features of the tumours favouring successful cell cultivation. MATERIALS AND METHODS: The tumour cells were obtained from colectomy specimens. Primary tumour and lymph node metastasis tissue was used for establishing the tissue cultures. Colectomy samples were further processed for routine histopathological assessment: tumour grade, stage, angioinvasion and perineural spread were evaluated. Features of tissue culture cells were assessed using phase contrast microscopy and immune-histochemical techniques. WST-1 assay and X-CELLigence real time analysis were carried out for viability and proliferation testing before and after treatment with irinotecan and oxaliplatin. Molecular features of the tumour including K-RAS/B-RAF/N-RAS mutations were tested using allele-specific PCR. Results of the cultivation process were compared to the histopathological and molecular features of the tumours. RESULTS: In total, we obtained 33 samples from the primary site of tumours and 20 samples from lymph node metastases; in total, 27 cell lines were successfully isolated. Morphologic features characteristic of tumour cells in primary cell lines and epithelial differentiation (positive for AE1/AE3 cytokeratin) were evaluated. Higher tumour stage, angioinvasion and presence of perineural spread in primary tumour correlated positively with successful cell isolation from lymph node metastasis. All samples tested were NRAS wild-type. No correlation was found between molecular phenotype and the cell culture features. A higher proliferation potential was observed in the primary tumour cells, whereas higher sensitivity to irinotecan was found in the lymph node metastatic cells. CONCLUSIONS: Using mechanical dissociation, we successfully derived and cultivated CRC cells from primary tumours and lymph node metastases with success rate 3 % and 70% respectively. Primary tumour features favouring successful establishment of cell cultures were identified. PMID- 29042711 TI - Shielding of Heat Transfer from a Boundary. PMID- 29042710 TI - Effect of sertraline in paroxysmal hypertension. AB - OBJECTIVE: Paroxysmal hypertension or pseudopheochromocytoma is quite a common problem in clinical practice. The optimal treatment for this condition has not been established. This study sought to investigate whether sertraline (a selective serotonin reuptake inhibitor) reduces the symptoms. METHODS: We enrolled 64 patients referred to our department between April 2008 and October 2014 for symptomatic paroxysmal hypertension. Patients received sertraline, 50 mg once daily, in addition to their current medication. The effect of the treatment was assessed during their next clinical visit at least 3 months later. RESULTS: Of the 64 patients, 57 (89%) also had sustained arterial hypertension. Mean office baseline blood pressure (BP) was 147.6/83.8 mmHg and patients used a mean of 3.1 antihypertensive drugs. Five patients did not start using sertraline and three were lost to follow-up. Of the 56 patients who started using sertraline and who came for check up, clinical improvement was observed in 42 (75%) patients - symptoms of paroxysmal hypertension fully subsided in 28 (50%) and were partially reduced in 14 (25%) . Side effects or intolerance leading to discontinuation of treatment occurred in 7 patients (12.5%). Mean office BP in patients using sertraline decreased by 12.8/7.4 mmHg (P<0.001 for both). CONCLUSIONS: Sertraline effectively removed or reduced symptoms of paroxysmal hypertension in the majority of patients who used this treatment. PMID- 29042712 TI - Sensitivity of novel silicate and borate-based glass structures on in vitro bioactivity and degradation behaviour. AB - Three novel glass compositions, identified as NCL2 (SiO2-based), NCL4 (B2O3 based) and NCL7 (SiO2-based), along with apatite-wollastonite (AW) were processed to form sintered dense pellets, and subsequently evaluated for their in vitro bioactive potential, resulting physico-chemical properties and degradation rate. Microstructural analysis showed the carbonated hydroxyapatite (HCA) precipitate morphology following SBF testing to be composition-dependent. AW and the NCL7 formulation exhibited greater HCA precursor formation than the NCL2 and NCL4 derived pellets. Moreover, the NCL4 borate-based samples showed the highest biodegradation rate; with silicate-derived structures displaying the lowest weight loss after SBF immersion. The results of this study suggested that glass composition has significant influence on apatite-forming ability and also degradation rate, indicating the possibility to customise the properties of this class of materials towards the bone repair and regeneration process. PMID- 29042713 TI - Trivial Molecules May Prevent or Hamper Tooth Decay: A Potential Voyaged? PMID- 29042714 TI - Challenges of Dental Care for Children with Microcephaly Carrying Zika Congenital Syndrome. PMID- 29042715 TI - Use of Temporalis Fascia Flap in the Treatment of Temporomandibular Joint Ankylosis: A Clinical Audit of 5 Years. AB - AIM: Restoration of normal function and jaw movements in patients with temporomandibular joint (TMJ) ankylosis has been a challenge. Various techniques have been provided for its treatment; but the results have been variable. The purpose of this paper is to present an easy and versatile method for the treatment of TMJ ankylosis and to decrease postoperative complications such as reankylosis. MATERIALS AND METHODS: This paper is a review of surgical outcome of interposition arthroplasty with temporalis fascia in 17 patients of unilateral TMJ ankylosis who underwent the above procedure. The review is based on the pre-, intra- and post-operative evaluation of these seventeen patients who were treated between 2008 and 2013. The follow-up time was 1-5 years. RESULTS: Reankylosis was seen in only one of the patients; the remaining patients had satisfactory mouth openings. CONCLUSION: Surgical treatment of TMJ ankylosis with interposition of temporal fascia is an effective and easy procedure for prevention for reankylosis. The autogeneous nature and proximity to the joint are the main advantages of the temporal fascia flap when compared with other interpositional materials. PMID- 29042716 TI - Effectiveness of Behavioral Vaccine on the Oral Health of Children in Komarapalayam, South India: A Randomized Controlled Pilot Trial. AB - BACKGROUND: Oral health education and promotion have emerged as a strong force against the traditional, dominant, and curative model of health practice. In pediatric dentistry, the utilization of an entertaining, easy to understand, and practical educational material is warranted. Behavioral vaccine is a simple, scientifically proven practice that is repeated to increase well-being. AIM: The aim of this study is to compare the effectiveness of conventional (instructional) dental hygiene program and "Good Behavior Game" (GBG) (contingency dental hygiene program - a behavioral vaccine) on the practice of oral hygiene among 5-7-year old schoolchildren. STUDY DESIGN: A total of sixty children aged 5-7 years were divided into two groups. Each group had thirty children. MATERIALS AND METHODS: A pretest estimation of debris index-simplified (DI-S) was carried out. Children in Group A were given oral health education through instructional oral hygiene program. Children in Group B were allowed to participate in GBG daily for a week. The DI-S was recorded on the 8th day and 3 months after the intervention in both the groups. RESULTS: In Group B, the good oral hygiene score dramatically increased from 10% to 93.3% 1 week after the intervention. There was a relative decrease in percentage of children who scored fair and poor also. At the end of 3 month follow-up, 90% of children had good oral hygiene. In Group A, there was a significant improvement in oral hygiene after 1 week, but it was not significant after 3 months. CONCLUSION: The present study was undertaken to advance the area of behavioral vaccine as an alternative for teaching basic oral health concepts in children. In this study, the GBG was found to be an effective intervention aid for educating children. PMID- 29042717 TI - Cervical Dentin Changes in Curved Root Canals after Using WaveOne and Reciproc Files with Full Rotation versus Reciprocation Movement: An Ex vivo Study. AB - AIM: The aim of the current study was to compare the effect of WaveOne and Reciproc files in reciprocation versus reverse full rotation movements on cervical dentin thickness by virtue of cone beam computed tomography (CBCT) analysis in curved mesial canals of mandibular first molars. METHODS: Mesiobuccal canals of 60 mandibular molars were randomly divided into 4 groups (n = 15): Group 1; WaveOne/Reciprocation, Group 2; WaveOne/Full-Rotation, Group 3; Reciproc/Reciprocation, and Group 4; Reciproc/Full-Rotation. Pre- and post instrumented CBCT scans were prepared for assessment of cervical dentin thickness changes (2 mm, 4 mm below the highest point of the root furcation) in both groups. Data statistically analyzed using two-way ANOVA test. RESULTS: There was no statistically significant difference between four experimental groups in terms of remaining dentin thickness at 2 and 4 mm levels below the highest point of the furcation (P > 0.05). No separation of instruments occurred in any group. CONCLUSION: WaveOne and Reciproc files with two different motions have similar effects on cervical of root canals in terms of dentin thickness changes. PMID- 29042718 TI - Are Local Anesthesia Vials Similar to Champagne: Do they Lose their Potency Once Opened?: An In vitro study. AB - BACKGROUND AND OBJECTIVES: Epinephrine is volatile and unstable on exposure to air. Addition of sodium metabisulfite as an antioxidant has been effective, but there are no clear-cut consensus on its efficiency in retarding the oxidation that sets in once the anesthetic vials are kept open with a needle in situ. There is a paucity of scientific data regarding the risks of reuse of anesthetic vials following the use of cartridges, a common practice in western countries. It is our endeavor to shed light on the constant change in pH, drug deterioration, and instability that sets in an anesthetic vial with a needle in situ. METHODS: Twenty sets of identical local anesthetic vials (lidocaine 2% with 1:80,000 adrenaline) were collected. The samples were divided into four individual groups followed by a segregation of 5 subsamples at varying time intervals from each individual group. pH was measured using pH meter. RESULTS: Change in the pH of the solution was noted as days progressed in open local anesthetic vials when compared to closed vials. However, the decreased pH remained constant following a brief time interval after complete conversion of sulfite to sulfate. CONCLUSIONS: Local anesthetic vials with needle pricked in for a longer duration can alter the pH, concentration of the vasoconstrictor and deteriorate the properties of local anesthetic solution. This can manifest clinically as delayed onset of action, increased burning sensation, and pain on administration. PMID- 29042719 TI - A Novel Conservative Approach Combining "SealBio" and "Surgical Fenestration" for Healing of Large Periapical Cystic Lesions of Endodontic Origin: A Pilot Study. AB - OBJECTIVES: To evaluate the treatment outcome of large periapical cystic lesions treated by combining two novel, conservative approaches, "SealBio" and "Surgical Fenestration". MATERIALS AND METHODS: Five cases (4M:1F, age range 14-38 years, mean age 24.5 years) of large periapical cystic lesions, diagnosed on clinical and radiographic examination, were included in the study. After informed consent, endodontic treatment was initiated; chemo-mechanical preparation and intra-canal dressing of calcium hydroxide was given. At the next sitting after one week, further disinfection root canals was done by "apical clearing", "apical foramen widening" and irrigation. A cotton pellet was kept in the access cavity. After local anaesthesia, full thickness muco-periosteal flap was reflected and the thinned out bone was removed with bone rongers, a small piece of cystic lining was excised and the cystic cavity was copiously flushed with Betadine solution. The remaining cystic lining was gently curetted and the flap was sutured back. "SealBio" was performed after gentle irrigation with saline and intentional over instrumentation. A calcium sulphate based cement was pushed in the cervical third of the canal and the access opening was sealed with glass ionomer cement. Patient was prescribed antibiotics and anti-inflammatory drugs for 5 days and sutures were removed after 7 days. Patients were followed up clinically and radiographically at regular intervals. CONCLUSIONS: In this pilot study, treatment outcome after combined technique of "SealBio" and "Surgical fenestration" was found to be highly effective in healing of large periapical cystic lesions. It was simple to perform and very conservative treatment; it required minimal bone removal, obviated the need for complete cyst enucleation, apicectomy and retrograde filling. PMID- 29042720 TI - Microtensile Bond Strength and Failure Modes of Flowable Composites on Primary Dentin with Application of Different Adhesive Strategies. AB - BACKGROUND: Resin composite is an option for the restoration of primary teeth, and new materials with simplified procedures are increasingly being suggested. AIMS: This study aims to evaluate the microtensile bond strengths and fracture modes of flowable composites on primary dentin with application of different adhesive strategies. MATERIALS AND METHODS: Sixty extracted noncaries primary molars were abraded from buccal surfaces to expose dentin surface. The teeth were randomly divided into three groups as follows: Group 1, VertiseTM Flow (Kerr) (self-adhering flowable composite); Group 2, G-aenial Universal Flo(r) (GC Europe) (used with one-step self-etch system); Group 3, Tetric(r) N-Flow (Ivoclar/Vivadent) (used with two-step total etch system). Then, the flowable composites were applied to buccal dentin surfaces with the help of guide mold. Samples were embedded in acrylic blocks and sectioned to form dentin-composite sticks with a surface area of approximately 1 mm2. Finally, a total of 180 sticks were obtained to give each group of 60 sticks. Microtensile bond strengths were measured using a universal testing machine (1 mm/min). Fracture modes were evaluated with scanning electron microscopy. STATISTICAL ANALYSIS: Microtensile bond strengths data were analyzed by Kruskal-Wallis nonparametric test. RESULTS: The microtensile bond strengths of G-aenial (15.5 megapascals [Mpa]) and Tetric (13.0 MPa) were statistically significant higher than Vertise (2.3 MPa). It was recorded that most of fractures in G-aenial was 40% cohesive, Tetric was 53.3% mixed, and Vertise was 83.3% adhesive. CONCLUSIONS: The self-adhering flowable composite VertiseTM Flow had the lowest and G-aenial Universal Flo(r) had the highest microtensile bond values. PMID- 29042721 TI - Clinical and Radiographic Evaluation of Citric Acid-Based Nano Hydroxyapatite Composite Graft in the Regeneration of Intrabony Defects - A Randomized Controlled Trial. AB - BACKGROUND: Conventional periodontal therapy with various bone grafts has limited scope and the results are not predictable. To improve their utility, the hybridization of bioceramics and biodegradable polymers has been widely adopted to reform the mechanical properties of bone grafts. One such biodegradable polymer is POC (Poly 1,8 octanediol). Secondly, citric acid is considered as the key material in bone mineralization, which is related to the overall stability, strength and fracture resistance of bone. Hence citric acid is incorporated in a polymer and Nano hydroxyapatite to form a composite graft, for periodontal bone regeneration. This study attempts to evaluate the efficacy of citric acid based Nano-hydroxyapatite composite graft for the treatment of intrabony defects in chronic periodontitis patients over 12 months. METHODS: A split mouth study, which consists of 10 systemically healthy patients, were randomly treated with Citric acid based Nano hydroxyapatite composite graft (test sites, n=18) or with Nano hydroxyapatite alone (control sites, n=15). Plaque index, gingival index, gingival bleeding index, probing pocket depth (PPD), clinical attachment level (CAL), bone probing depth (BPD) and hard tissue parameters such as amount of defect fill, percentage of defect fill, and changes in alveolar crest were assessed over a period of 12 months. Statistical analysis used was student's t test and One-Way ANOVA. RESULTS: Both test and control sites demonstrated statistically significant reduction of PD, BPD, gain in CAL and radiographic bone fill. Nevertheless the test sites showed Statistically significant improvements in all the parameters as compared to control sites at 12 months. CONCLUSION: Citric acid based Nano hydroxyapatite composite graft can be considered as a newer material for periodontal regeneration. PMID- 29042722 TI - Salutogenesis: A New Approach toward Oral Health Promotion. AB - INTRODUCTION: Sense of coherence (SOC) is hypothesized to be an important psychological factor that enables people to cope with stressors and successfully maintain and improve health. Very few publications report on the relationship between "salutogenesis," as measured by the concept of SOC and oral health status. However, little is known about the relationship between the mother's SOC and dental caries of their children. AIMS AND OBJECTIVES: The aim of the present study was to explore the impact of mother's SOC level on dental caries status of their children. MATERIALS AND METHODS: A school-based cross-sectional study was conducted with the children aged 4-8 years attending public school (n = 200). Questionnaires were applied to mothers to obtain level of SOC. Dental caries status in children was assessed using decayed, missing, filled tooth surfaces (DMFS) and/or dmfs index. One-way analysis of variance F-test and post hoc Tukey test were used to assess the effect of mother's SOC level on their children's caries dmfs index. RESULTS: Mean of dmfs and/or DMFS in children showed statistically significant relation with their mother's SOC level (P < 0.01). On intergroup comparison, significant (P < 0.01) difference was found when mean of dmfs and/or DMFS with mothers having low SOC and high SOC was compared. However, there was no significant relation when mean was compared to mothers with medium and low SOC. CONCLUSION: Dental caries of children gets influenced by mother's SOC level. There was an inverse relationship between mother's SOC level and their children dental caries status. PMID- 29042723 TI - Effect of Different Irrigating Solutions on Depth of Penetration of Sealer into Dentinal Tubules: A Confocal Microscopic Study. AB - AIM: The aim of the study was to evaluate the effect of different irrigating solutions used in final irrigation on depth of sealer penetration into dentinal tubules. MATERIALS AND METHODS: Thirty recently extracted, human mandibular premolar teeth with single canals were randomly divided into two groups, and one of the two irrigants was used in each group - Group A (Chitosan) and Group B (Ethylenediaminetetraacetic acid). All the teeth were obturated with gutta-percha and AH 26(r) sealer labeled with fluorescent dye. The teeth were sectioned at distances 2, 5, and 8 mm from the root apex. Maximum depth of sealer penetration was measured using confocal laser scanning microscopy. STATISTICAL ANALYSIS: Statistical analysis used One-way analysis of variance and t-test. RESULTS: At coronal third depth, the sealer penetration was greater in ethylenediaminetetraacetic acid (EDTA) group; however, depth of sealer penetration was greater at apical third in chitosan group. CONCLUSION: Final irrigation with EDTA and chitosan after the use of sodium hypochlorite affected sealer penetration. PMID- 29042724 TI - Evaluation of Bond Strength between Grooved Titanium Alloy Implant Abutments and Provisional Veneering Materials after Surface Treatment of the Abutments: An In vitro Study. AB - INTRODUCTION: Titanium has become the material of choice with greater applications in dental implants. The success of the dental implant does not only depend on the integration of the implant to the bone but also on the function and longevity of the superstructure. The clinical condition that demands long-term interim prosthesis is challenging owing to the decreased bond between the abutment and the veneering material. Hence, various surface treatments are done on the abutments to increase the bond strength. AIM: This study aimed to evaluate the bond strength between the abutment and the provisional veneering materials by surface treatments such as acid etching, laser etching, and sand blasting of the abutment. MATERIALS AND METHODS: Forty titanium alloy abutments of 3 mm diameter and 11 mm height were grouped into four groups with ten samples. Groups A, B, C, and D are untreated abutments, sand blasted with 110 MUm aluminum particles, etched with 1% hydrofluoric acid and 30% nitric acid, and laser etched with Nd: YAG laser, respectively. Provisional crowns were fabricated with bis-acrylic resin and cemented with noneugenol temporary luting cement. The shear bond strength was measured in universal testing machine using modified Shell-Nielsen shear test after the cemented samples were stored in water at 25 degrees C for 24 h. Load was applied at a constant cross head speed of 5 mm/min until a sudden decrease in resistance indicative of bond failure was observed. The corresponding force values were recorded, and statistical analysis was done using one-way ANOVA and Newman-Keuls post hoc test. RESULTS: The laser-etched samples showed higher bond strength. CONCLUSION: Among the three surface treatments, laser etching showed the highest bond strength between titanium alloy implant abutment and provisional restorations. The sand-blasted surfaces demonstrated a significant difference in bond strength compared to laser-etched surfaces. The results of this study confirmed that a combination of surface treatments and bond agents enhances the bond strength. PMID- 29042725 TI - The Effect of Polymerization and Preparation Techniques on the Microleakage of Composite Laminate Veneers. AB - BACKGROUND: Marginal leakage is the important factor influencing the maintenance of dental esthetic. AIM: The purpose of this study was to evaluate the relationship between the preparation techniques and type of polymerization techniques on microleakage of composite laminate veneers. MATERIALS AND METHODS: Ninety-one same sized, caries-free human maxillary central incisors were randomly assigned to 13 groups (n = 7) and were designed with four different preparation techniques (window type, feather type, bevel type, and incisal overlap type). One group determined as control group and any preparation was applied. Nanohybrid resin composite was used for restoration. Composite laminate veneers polymerized with three different techniques (direct light curing, indirect polymerization with a combination of pressure, light and heat using a light cup and heat cup, direct polymerization, and additionally heat cured in an oven). The specimens were thermocycled, and then immersed in 5% basic fuchsine solution. Following 24 h, all specimens were immersed in 65% nitric acid solutions for volumetric dye extraction test. Samples diluted with distilled water and centrifuged and microleakage determined by a spectrophotometer. STATISTICAL ANALYSIS USED: Data were analyzed with two-way ANOVA and Tukey honest significant difference post hoc multiple comparisons test (P < 0.05). RESULTS: For comparing the microleakage value of preparation and polymerization techniques, Window type preparation showed a significant difference in direct polymerization + additional cured group (P < 0.05). Control group was statistically different from the other groups (P < 0.05). CONCLUSIONS: Window type laminate preparation can be preferred in indirect polymerization technique because it caused less leakage in this present study. PMID- 29042726 TI - Comparative Evaluation of Conventional and Accelerated Castings on Marginal Fit and Surface Roughness. AB - AIMS: The aim of this study was to evaluate the marginal fit and surface roughness of complete cast crowns made by a conventional and an accelerated casting technique. SETTINGS AND DESIGN: This study was divided into three parts. In Part I, the marginal fit of full metal crowns made by both casting techniques in the vertical direction was checked, in Part II, the fit of sectional metal crowns in the horizontal direction made by both casting techniques was checked, and in Part III, the surface roughness of disc-shaped metal plate specimens made by both casting techniques was checked. MATERIALS AND METHODS: A conventional technique was compared with an accelerated technique. In Part I of the study, the marginal fit of the full metal crowns as well as in Part II, the horizontal fit of sectional metal crowns made by both casting techniques was determined, and in Part III, the surface roughness of castings made with the same techniques was compared. STATISTICAL ANALYSIS USED: The results of the t-test and independent sample test do not indicate statistically significant differences in the marginal discrepancy detected between the two casting techniques. RESULTS: For the marginal discrepancy and surface roughness, crowns fabricated with the accelerated technique were significantly different from those fabricated with the conventional technique. CONCLUSIONS: Accelerated casting technique showed quite satisfactory results, but the conventional technique was superior in terms of marginal fit and surface roughness. PMID- 29042727 TI - Clinical and Radiographic Evaluation of Procedural Errors during Preparation of Curved Root Canals with Hand and Rotary Instruments: A Randomized Clinical Study. AB - BACKGROUND: The process of cleaning and shaping the canal is not an easy goal to obtain, as canal curvature played a significant role during the instrumentation of the curved canals. AIM: The present in vivo study was conducted to evaluate procedural errors during the preparation of curved root canals using hand Nitiflex and rotary K3XF instruments. MATERIALS AND METHODS: Procedural errors such as ledge formation, instrument separation, and perforation (apical, furcal, strip) were determined in sixty patients, divided into two groups. In Group I, thirty teeth in thirty patients were prepared using hand Nitiflex system, and in Group II, thirty teeth in thirty patients were prepared using K3XF rotary system. The evaluation was done clinically as well as radiographically. The results recorded from both groups were compiled and put to statistical analysis. STATISTICAL ANALYSIS: Chi-square test was used to compare the procedural errors (instrument separation, ledge formation, and perforation). RESULTS: In the present study, both hand Nitiflex and rotary K3XF showed ledge formation and instrument separation. Although ledge formation and instrument separation by rotary K3XF file system was less as compared to hand Nitiflex. No perforation was seen in both the instrument groups. CONCLUSION: Canal curvature played a significant role during the instrumentation of the curved canals. Procedural errors such as ledge formation and instrument separation by rotary K3XF file system were less as compared to hand Nitiflex. PMID- 29042728 TI - One-stage Full Mouth Disinfection Using 20% Propolis Hydroalcoholic Solution: A Clinico-microbiologic Study. AB - BACKGROUND: Propolis is a resinous substance produced by honeybees which has many therapeutic properties because of its unique composition. It has been widely used since many years for different medicinal purposes. AIM: The aim of this study was to investigate the effects of one-stage full mouth disinfection (OSFMD) using 20% propolis hydroalcoholic solution in chronic periodontitis patients. MATERIALS AND METHODS: Thirty patients diagnosed with chronic periodontitis and presenting three or more nonadjacent teeth with deep pockets were selected for the study. Clinical parameters including gingival index, plaque index, bleeding on probing, probing pocket depth, and clinical attachment level were recorded at baseline in all the patients followed by subgingival plaque sampling. All the thirty patients were randomly allocated into two groups; 15 patients (control group) were subjected to scaling and root planning (SRP) alone, and in remaining 15 patients (test group), SRP was done followed by OSFMD using 20% propolis hydroalcoholic solution after 24 h. All the patients were kept at periodic recall, and clinical and microbiological parameters were again taken at 4 weeks and 12 weeks. RESULTS: There was a significant improvement for all the clinical parameters, with higher probing depth reduction and attachment gain in the test group when compared to the control group. Furthermore, the microbiological counts of the periodontopathogens were found to decrease considerably more in the test group. CONCLUSION: SRP followed by OSFMD with propolis extract after 24 h was more effective than SRP alone in chronic periodontitis patients. PMID- 29042729 TI - Attitudes of Parents and Children toward Primary Molars Restoration with Stainless Steel Crown. AB - CONTEXT: Today, attention has increasingly been focused on the studies which include patient-centered consequences. AIMS: The study aims to investigate the attitude of parents and children toward the application of stainless steel crown (SSC) on primary molars. SETTINGS AND DESIGN: This cross-sectional descriptive study included eighty 4-6-year-old children having treated with SSC over the past 3-6 months. SUBJECTS AND METHODS: Eventually, a validated child- and parent centered self-report questionnaire was filled, having 14 questions about demographic information, six questions about childrens' attitude, and eight questions about parents' attitude. STATISTICAL ANALYSIS USED: Data analysis was conducted using t-test and one-way ANOVA at significant level P < 0.05. RESULTS: In general, the score of children's attitude was positive, and the mean of attitude scores was obtained to be 9.9 +/- 2.6; attitudes of 82.43% of children were good. Parents had neutral attitude; the mean of their attitude was obtained to be 20.2 +/- 4.8. Only 53% of the parents scored good attitudes. CONCLUSIONS: The attitude score of children toward SSC was good and independent of age, gender, career, and education of the parents. Although the parents were not satisfied with how it appeared, the majority of them reported that their child had well accepted the crown. PMID- 29042730 TI - A Comparative Scanning Electron Microscopic Analysis of the Effect of QMix(r) and SofScaleTM as an Adjunct to Scaling and Root Planing on Periodontally Compromised Root Surfaces: An In vitro Study. AB - AIM: This study aimed to comparatively analyze, under scanning electron microscope (SEM), the effect of the use of QMix(r) and SofScaleTM as an adjunct to scaling and root planing (SRP) on periodontally compromised root surfaces. SETTINGS AND DESIGN: This study was carried out in K. M. Shah Dental College and Hospital, Vadodara. METHODOLOGY: This was a single-blinded in vitro study which compared QMix(r) and SofScaleTM as an adjunct to SRP on periodontally compromised root surfaces under SEM. STATISTICAL ANALYSIS USED: Statistical analysis was done using a nonparametric Mann-Whitney U-test to test the null hypothesis that there is no difference between the test and control groups. RESULTS: The sum of ranks for QMix(r) was 306.50 and the sum of ranks for SofScaleTM was 513.50. The group which was treated with QMix(r) showed statistically significant results (P = 0.004) as compared to group which was treated with SofScaleTM. CONCLUSION: Comparative analysis showed that QMix(r) had significantly better smear layer removal ability as compared to SofScaleTM. However, uniform root surface was achieved with both QMix(r) and SofScaleTM. PMID- 29042731 TI - Dimensional Evaluation of Root Resorption Areas in Differing Severity of Chronic Periodontitis: A Scanning Electron Microscopic Study. AB - AIM: The aim of this study was to evaluate root surface alterations in terms of location, length, and depth of root resorption in the gingival, middle, and apical third of the mesial and distal surfaces of the root in healthy and periodontally affected teeth with chronic periodontitis. MATERIALS AND METHODS: Teeth diagnosed with differing severity of chronic periodontitis, as assessed by clinical and radiographic parameters of bone destruction, were observed under a scanning electron microscope. Existence and location of root resorption areas, as well as length and depth of the resorption on each radicular third of the teeth, were determined. RESULTS: Totally 27 teeth (60%) among all the groups exhibited root resorption. The number of teeth showing root resorption in each group was divided into the following groups; Group I: 2 teeth (13.33%); Group II: 11 teeth (73.33%); and Group III: 14 teeth (93.33%). The most affected teeth were the mandibular incisors. The apical one-third of the root was the most affected and the gingival third of the root was the least affected with respect to the length and depth of the root resorption. The mesial surface of the root was more commonly affected when compared to the distal surface of the root. CONCLUSION: It may thus be concluded that the existence and extent of root resorption depend on the severity of periodontal destruction. PMID- 29042732 TI - Comparative Evaluation of Cone-beam Computed Tomography versus Direct Surgical Measurements in the Diagnosis of Mandibular Molar Furcation Involvement. AB - AIM: Periodontists frequently experience inconvenience in accurate assessment and treatment of furcation areas affected by periodontal disease. Furcation involvement (FI) most commonly affects the mandibular molars. Diagnosis of furcation-involved teeth is mainly by the assessment of probing pocket depth, clinical attachment level, furcation entrance probing, and intraoral periapical radiographs. Three-dimensional imaging has provided advantage to the clinician in assessment of bone morphology. Thus, the present study aimed to compare the diagnostic efficacy of cone-beam computed tomography (CBCT) as against direct intrasurgical measurements of furcation defects in mandibular molars. SUBJECTS AND METHODS: Study population included 14 patients with 25 mandibular molar furcation sites. CBCT was performed to measure height, width, and depth of furcation defects of mandibular molars with Grade II and Grade III FI. Intrasurgical measurements of the FI were assessed during periodontal flap surgery in indicated teeth which were compared with CBCT measurements. Statistical analysis was done using paired t-test and Bland-Altman plot. RESULTS: The CBCT versus intrasurgical furcation measurements were 2.18 +/- 0.86 mm and 2.30 +/- 0.89 mm for furcation height, 1.87 +/- 0.52 mm and 1.84 +/- 0.49 mm for furcation width, and 3.81 +/- 1.37 mm and 4.05 +/- 1.49 mm for furcation depth, respectively. Results showed that there was no statistical significance between the measured parameters, indicating that the two methods were statistically similar. CONCLUSION: Accuracy of assessment of mandibular molar FI by CBCT was comparable to that of direct surgical measurements. These findings indicate that CBCT is an excellent adjunctive diagnostic tool in periodontal treatment planning. PMID- 29042733 TI - Effect of Melaleuca alternifolia Mixed with Tissue Conditioners in Varying Doses on Colonization and Inhibition of Candida albicans: An In Vitro Study. AB - AIMS AND OBJECTIVES: The study was conducted to evaluate the Colonization & Inhibition of Candida albicans in selected commercially available denture lining materials material by mixing them with varying concentrations and doses of tea tree oil. MATERIALS AND METHODS: Five test discs of 10mm diameter and 1.5mm thickness were prepared using commercially available soft denture lining materials (Viscogel and GC-soft). Tea tree oil of varying concentrations (10%, 20%, 30%, and 40%) and doses (0.5 ml, 1.0 ml, 1.5 ml, 2.0 ml) were added during manipulation. Test discs kept in sterile artificial saliva were inoculated with Candida albicans (ATCC-2091 strain) and incubated for 6 weeks. These discs were fixed, dehydrated air dried and stained using 0.03% acridine orange stain and observed under Fluorescent microscope to count the colonies on the surface of each disc to evaluate the colonization. To evaluate inhibition, test discs were placed on the top of Sabouraud's dextrose agar inoculated with Candida albicans (ATCC-2091 strain). After incubation at 370C for 48 hours, the zone of Inhibition formed around the samples was measured. RESULTS: The GC soft liner had higher mean colonization and lesser zone of inhibition of C.albicans when compared to Visco-gel soft liner (P < 0.001) and highest zone of inhibition observed with 2 ml volume and 40% vol/vol concentration of melaleuca alternifolia (P < 0.05). INTERPRETATION AND CONCLUSION: By the addition of Tea Tree oil, Viscogel had good acquired good antifungal properties than GC-soft lining materials. PMID- 29042734 TI - Influence of Bleaching Regimen and Time Elapsed on Microtensile Bond Strength of Resin Composite to Enamel. AB - OBJECTIVES: The aim of this study was to evaluate the effects of time elapsed since bleaching and different bleaching regimens on the microtensile bond strength of resin composite to enamel. METHODOLOGY: Forty flattened buccal enamel surfaces were divided into four groups: An unbleached (control) group and three bleaching groups. Control group specimens were not subjected to a bleaching regimen (Group 1), while those in the bleaching groups were bleached as follows: opalescence 10% (Group 2), whiteness perfect 16% (Group 3), and whiteness hydrogen peroxide 35% (Group 4). Thereafter, the bleached specimens were divided into three subgroups (n = 4 teeth each) for restoration according to predetermined posttreatment time intervals (immediately, 1 week, and 2 weeks). Bonded specimens were then sectioned and subjected to MUTBS testing. The data were analyzed using Kruskal-Wallis and Mann-Whitney U-tests at alpha = 0.05. RESULTS: There was a significant difference in the MUTBS of the resin composite to enamel in groups that were bonded immediately after bleaching and in the control group (P < 0.05). Compared to the control group, the MUTBS in Groups 2, 3, and 4 decreased significantly 1-week postbleaching (P < 0.05). No significant difference in MUTBS was observed between the bleached and unbleached groups 2 weeks after treatment (P > 0.05). CONCLUSIONS: Adhesive restorative procedures could not be performed immediately or after 1 week irrespective of the type or concentration of bleaching system used. Composite restorations on bleached enamel surfaces should be performed after an interval of at least 2 weeks. PMID- 29042735 TI - Effectiveness of Three Different Irrigants - 17% Ethylenediaminetetraacetic Acid, Q-MIX, and Phytic Acid in Smear Layer Removal: A Comparative Scanning Electron Microscope Study. AB - BACKGROUND: Removal of smear layer from the root canal walls is important for long-standing endodontic success. AIM: The aim of this study is to evaluate and compare smear layer removing ability among 17% ethylenediaminetetraacetic acid (EDTA), Q-MIX, and phytic acid by scanning electron microscopy (SEM). MATERIALS AND METHODS: This in-vitro experimental study assessed smear layer removal using three different irrigants. Thirty single-rooted freshly extracted human permanent premolars were collected, disinfected, and decoronated to a standardized root length of 13 mm. Root canals were cleaned and shaped till F2 universal rotary protaper at working length 1 mm short of the apex. They were randomly divided into three groups, and final irrigation was done accordingly. Group 1 (n = 10): with 1 ml of 17% EDTA, Group 2 (n = 10): with 1 ml of Q-MIX, Group 3 (n = 10): with 1 ml of phytic acid. Samples were then longitudinally sectioned and evaluated under SEM at coronal, middle, and apical levels. STATISTICAL ANALYSIS: Two-way analysis of variance and Tukey's post hoc test were performed. The level of significance was set at 0.05. RESULTS: Smear layer removing ability among irrigants and sections in descending order: 17 EDTA > Q-MIX > phytic acid; coronal > middle > apical. CONCLUSION: 17% EDTA showed better and promising results followed by Q-MIX and then phytic acid. PMID- 29042736 TI - Multiple Gingival Recession Coverage Treated with Vestibular Incision Subperiosteal Tunnel Access Approach with or without Platelet-Rich Fibrin - A Case Series. AB - BACKGROUND: Gingival recession involves both soft tissue and hard tissue loss. In this evolutionary era of dentistry, newer techniques have evolved for complete coverage of isolated recession defects. Since 2012, vestibular incision subperiosteal tunnel access (VISTA) technique was used with various regenerative membranes to treat multiple recession defects (MRDs). Platelet-rich fibrin (PRF) membrane, a pool of growth factors but have any added advantage to recession coverage techniques is controversial. Thus, in this case series, we compare the effect of VISTA with or without PRF-membrane for the treatment of Classes I and III MRDs. SUBJECTS AND METHODS: Four patients between of age 30 and 40 years (two patients having bilateral Class I and another two having bilateral Class III MRDs) were selected from the Department of Periodontics, ITS Dental College, Greater Noida and designated as Case I-IV simultaneously. Recession defects at antagonist sites in each patient were corrected by VISTA approach with or without PRF-membrane. Recorded clinical parameters included recession depth, recession width, pocket probing depth, and clinical attachment level (CAL) at baseline and 6 months postoperatively. RESULTS: Patients having Class I recession defects showed almost complete root coverage with VISTA technique alone and reflected no added advantage of PRF-membrane. However, patients with Class III recession defects treated with VISTA + PRF-membrane showed more reduction in recession depth and gain in CAL as compared to sites treated with VISTA only. CONCLUSION: VISTA alone is a convenient technique for treatment of Class I MRDs. Addition of PRF-membrane for Class III recession defects give better outcome in term of reduction of recession depth and gain in CAL 6 month postoperatively. PMID- 29042737 TI - Nance-Horan Syndrome: A Rare Case Report. AB - Dentofacial anomalies may guide us to the diagnosis of many congenital and hereditary syndromes. A 9-year-old boy was diagnosed with Nance-Horan syndrome. This syndrome is an extremely rare X-linked genetic disorder which is entirely expressed in males with semi-dominant transmission which results from mutations occurring in male gametes. It is characterized by facial dysmorphism such as long face, prominent nose and mandibular prognathism, ocular abnormalities such as congenital cataract, microcornea, microphthalmia and strabismus, and dental anomalies including mulberry molars and screwdriver-shaped incisors. Heterozygous females inherit this disease and also suffer from this syndrome but in a milder form. Approximately one-third of the affected males show signs of developmental delay and intellectual abnormalities. This syndrome is very rare and the incidence of the disease has not been established so far. The present article describes the clinical and radiological features and the genetic implications of this syndrome. PMID- 29042738 TI - Prosthetic Rehabilitation of Mandibular Defects with Fixed-removable Partial Denture Prosthesis Using Precision Attachment: A Twin Case Report. AB - The restoration of normal function and esthetic appearance with a dental prosthesis is a major challenge in the rehabilitation of patients who have lost their teeth and surrounding bone because of surgery for oral cyst or tumor. Rehabilitation with fixed or removable prosthesis is even more challenging when the edentulous span is long and the ridge is defective. Anatomic deformities and unfavorable biomechanics encountered in the region of resection add to the misery. In such situation, a fixed-removable prosthesis allows favorable biomechanical stress distribution along with restoration of esthetics, phonetics, comfort, hygiene, and better postoperative care and maintenance. This article describes rehabilitation of two cases with mandibular defects with an attachment retained fixed-removable hybrid prosthesis. PMID- 29042739 TI - Robinow Syndrome and Fusion of Primary Teeth. AB - Managing patients with rare genetic disorders is a challenge that dentists face often. Robinow syndrome (RS) is one such rare genetic disorder with <200 cases reported worldwide. RS demonstrates multiple craniofacial abnormalities and orodental disorders, which need to be taken into consideration by a dental practitioner while rendering dental care. PMID- 29042740 TI - Arteriovenous Malformation of Face. AB - Arteriovenous malformations (AVMs) are rare congenital vascular malformations accounting only 1.5% of all vascular anomalies with 50% occurrence in the oral and maxillofacial region. It usually results from birth defects of the vasculature. A literature search revealed only few case reports of AVMs in the facial region. Lack of meticulous diagnosis, scarcity of knowledge, and paucity of literature can result in their exsanguinations leading to fatal hemorrhagic incidents after various dental procedures such as tooth extraction, surgical intervention, puncture wound, or blunt injury in involved area. The present case describes the accidental diagnosis of asymptomatic high-flow AVMs in the facial region of pediatric patient reported primarily for the treatment of periapical abscess. This case report is unique because although there was no history of bleeding episodes, thorough examination and investigations diagnosed it as high flow vascular malformation. It is important for the dental practitioner to be aware of AVM which may be present in the head and neck region that can produce fatal bleeding episodes during various dental procedures. Proper diagnosis of AVMs through complete history, precise clinical examination, and advanced imaging modalities can help in preventing serious life-threatening complications. PMID- 29042741 TI - Management of Broken Dental Implant Abutment in a Patient with Bruxism: A Rare Case Report and Review of Literature. AB - This rare case report describes prosthodontic complications resulting from a dental implant was placed surgically more distally in the area of the missing mandibular first molar with a cantilever effect and a crest width of >12 mm in a 59-year-old patient who had a history of bruxism. Fracture of abutment is a common complication in implant was placed in area with high occlusal forces. Inability to remove the broken abutment may most often end up in discarding the implant. Adding one more dental implant mesially to the previously placed implant, improvisation of technique to remove the broken abutment without sacrificing the osseointegrated dental implant, fabrication with cemented custom made abutment to replace the broken abutment for the first implant, and the use of the two implants to replace a single molar restoration proved reliable and logical treatment solutions to avoid these prosthodontic complications. PMID- 29042742 TI - Class II Young Adult Treatment with Twin Force Bite Corrector: 10-Year Follow-up. AB - One of the most preferred compliance free fixed functional appliances in nongrowing patients is Twin Force Bite corrector (TFBC). The aim of this case report is to evaluate the effectiveness of TFBC in the treatment of an adult Class II case. A 16-year 1-month-old boy having skeletal and dental Class II relationship was selected. Roth 0.018 * 0.025 inch slots brackets were attached; a fixed lingual arch in the mandibular dental arch and a Nance appliance in the maxillary dental arch were used to increase anchorage. The TFBC therapy used for sagittal activation and stimulation of forward mandibular growth lasted for 3 months. The post-TFBC treatment lasted 6 months and the total treatment time was 9 months. Treatment of a young adult Class II malocclusion with TFBC resulted in a Class I molar occlusion, an ideal overjet, overbite, and incisor angulation in a short time and maintained in the 10-year follow-up. PMID- 29042743 TI - Necrotizing Ulcerative Gingivitis. AB - Necrotizing ulcerative gingivitis (NUG) is a typical form of periodontal diseases. It has an acute clinical presentation with the distinctive characteristics of rapid onset of interdental gingival necrosis, gingival pain, bleeding, and halitosis. Systemic symptoms such as lymphadenopathy and malaise could be also found. There are various predisposing factors such as stress, nutritional deficiencies, and immune system dysfunctions, especially, HIV infection that seems to play a major role in the pathogenesis of NUG. The treatment of NUG is organized in successive stages: first, the treatment of the acute phase that should be provided immediately to stop disease progression and to control patient's feeling of discomfort and pain; second, the treatment of the preexisting condition such as chronic gingivitis; then, the surgical correction of the disease sequelae like craters. Moreover, finally, maintenance phase that allows stable outcomes. This case report describes the diagnosis approach and the conservative management with a good outcome of NUG in a 21-year-old male patient with no systemic disease and probable mechanism of pathogenesis of two predisposing factors involved. PMID- 29042744 TI - Palatal Perforation: A Rare Complication of Postanesthetic Necrosis. AB - The everyday practice of dentistry relies heavily on achieving adequate local anesthesia. Even though the safety record of local anesthetic agents is high, complications do occur. Palate is a favorable site for soft-tissue lesions. Various factors such as direct effects of the drug, blanching of the tissues during injection, relatively poor blood supply, and reactivation of the latent forms of herpes can all promote to tissue ischemia and a lesion in the palate. Among various complications, anesthetic necrotic ulcer is a rare and uncommon condition occurring mostly in the hard palate possibly after a local anesthetic infiltration. The ulceration is often deep and shows spontaneous but delayed healing. If proper treatment is not instituted on time, the necrosis can reach deep into the bone causing sequestrum formation and ultimately leading to palatal perforation. Here, we report a case of palatal perforation in a male patient followed by surgical interventions and follow-up. PMID- 29042745 TI - Immunoexpression of Ki-67 and Endoglin Corroborating Hamartomatous Nature of Sialoangiolipoma. AB - Mesenchymal neoplasms of salivary gland including adipocytes are relatively uncommon entity classified as monophasic and biphasic. Sialolipoma, a biphasic mesenchymal salivary gland neoplasm, with a prominent vascularity designated as sialoangiolipoma (SAL) is a recently discussed entity with debates on the hamartomatous nature of the lesion. We have endorsed the hamartomatous nature through evaluating the immunoexpression of Ki-67 and endoglin in SAL in hard palate of a 60-year-old patient. To the best of our knowledge, this would be the second case of SAL in hard palate in a global platform. PMID- 29042746 TI - Erratum: Comparative Alveolar Ridge Preservation Using Allogenous Tooth Graft versus Free-dried Bone Allograft: A Randomized, Controlled, Prospective, Clinical Pilot Study. AB - [This corrects the article on p. 211 in vol. 8, PMID: 28839405.]. PMID- 29042747 TI - High-resolution wavefront-guided surface ablation with corneal cross-linking in ectatic corneas: a pilot study. AB - PURPOSE: A preliminary study to evaluate the outcomes of high-resolution wavefront-guided (HRWG) photorefractive keratectomy (PRK) with simultaneous corneal cross-linking (CXL) in ectasia eyes. METHODS: Sixteen eyes of 11 patients (mean age 31.9+/-9.8 years; range: 15-48 years) with keratoconus or post-laser assisted in situ keratomileusis ectasia underwent HRWG PRK with simultaneous CXL. Manifest refraction, uncorrected (UDVA) and corrected distance visual acuity (CDVA), and keratometric and aberrometric outcomes are reported at 12 months. RESULTS: Significant improvement was observed postoperatively in visual acuity, refraction, and keratectomy in all eyes. At postoperative 12 months, 87.5% eyes were within +/-1.0 D of attempted correction and 81.25% of eyes had a postoperative UDVA of 20/32 or better. A gain of 2 or more lines of CDVA was observed in 12.5% (2/16) of eyes and there was no change in CDVA lines in 25% (4/16) eyes. A substantial reduction in higher-order aberrations was observed in all eyes postoperatively; however, the improvement was not statistically significant. CONCLUSION: The outcomes of HRWG PRK in ectasia eyes with estimated residual stromal bed thickness of at least 350 MUm (without epithelium) are promising at postoperative 1 year and provide surgeons with a valuable tool to improve vision with a high degree of refractive predictability. PMID- 29042748 TI - Corneal biomechanical properties after laser-assisted in situ keratomileusis and photorefractive keratectomy. AB - BACKGROUND: The purpose of this study was to evaluate the effects of laser assisted in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) on corneal biomechanical properties. METHODS: We used the ocular response analyzer to measure corneal hysteresis (CH) and corneal resistance factor (CRF) before and after refractive surgery. RESULTS: In all, 230 eyes underwent LASIK and 115 eyes underwent PRK without mitomycin C (MMC). Both procedures decreased CH and CRF from baseline. When MMC was used after PRK in 20 eyes, it resulted in lower corneal biomechanical properties at 3 months when compared to the other procedures, but all three procedures had similar values at 12 months. CONCLUSION: Significant but similar decreases in corneal biomechanical properties after LASIK, PRK without MMC, and PRK with MMC were noted. PMID- 29042749 TI - A review of results after implantation of a secondary intraocular lens to correct residual refractive error after cataract surgery. AB - PURPOSE: The purpose of this study was to provide clinical outcomes data related to secondary intraocular lens (IOL) implantation for the correction of residual refractive error after cataract surgery. PATIENTS AND METHODS: A chart review was conducted to identify all eyes implanted with the monofocal spherical or toric AddOn(r) secondary IOL. Data were collated from charts where uncomplicated initial cataract surgery was completed. Measures of interest included the original IOL implanted, the postoperative refractive error (before secondary IOL implantation) and the associated corrected and uncorrected visual acuities (VAs). Postoperative data of interest included the residual refractive error, the best corrected visual acuity (BCVA) and uncorrected visual acuity (UCVA). RESULTS: Refractive and VA data from 1 week to 3 months post-surgery were available for 46 of 70 eyes implanted with a secondary IOL by one surgeon at one practice between 4/15 and 3/17. There was a statistically significant improvement in UCVA of about 2 lines after surgery (p<0.01), with no change in BCVA (p=0.94). No eyes lost a line of BCVA. There was a statistically significant reduction in the absolute magnitude of the residual spherical equivalent refractive error (p<0.01). In the 10 cases with a toric secondary IOL, there was a statistically significant reduction in refractive cylinder (p<0.01). CONCLUSION: The secondary IOL studied here appears to be a viable surgical option to correct residual refractive error after primary IOL implantation. PMID- 29042751 TI - Spotlight on ertugliflozin and its potential in the treatment of type 2 diabetes: evidence to date. AB - Sodium-glucose cotransporter 2 (SGLT2) inhibitors are the latest therapeutic strategy in the treatment of type 2 diabetes mellitus (T2DM). Using an insulin independent mechanism (glycosuria), they reduce glucose toxicity and improve insulin sensitivity and beta-cell function. The promising results obtained in clinical trials show that SGLT2 significantly improves glycemic control and provides greater cardiovascular protection, combined with a reduction in body weight and blood pressure (BP). This review focuses on ertugliflozin, a new, highly selective, and reversible SGLT2 inhibitor. Clinical trials published to date show that ertugliflozin, both as a monotherapy and as an add-on to oral antidiabetic agents, is safe and effective in reducing glycosylated hemoglobin (HbA1c), body weight, and BP in T2DM patients. PMID- 29042752 TI - Spotlight on perampanel in the management of seizures: design, development and an update on place in therapy. AB - PURPOSE: Perampanel is a first-in-class antiepileptic medication approved for the treatment of partial (focal) seizures, and as adjunctive treatment for primarily generalized tonic-clonic seizures. The pharmacology, efficacy data, adverse effect profile, pharmacokinetics and place in therapy are reviewed. SUMMARY: Perampanel is indicated for use in patients with epilepsy who are 12 years of age or older. It is the first medication designed specifically to be a non competitive antagonist at post-synaptic alpha-amino-3-hydroxyl-5-methyl-4 isoxazole-propionate receptors. Efficacy in refractory seizures has been established, and ongoing efficacy demonstrated by post-marketing data. The drug is completely absorbed, and exhibits a half-life that allows for once-daily administration in doses up to 12 mg/day. Drug interactions are minimal, but increased doses may be necessary when given with strong inducers of cytochrome P450 enzymes, including when perampanel is co-administered with other antiepileptics that exhibit this property. The most common adverse effects noted in both clinical trials and post-marketing are dizziness and somnolence. Psychiatric and behavioral adverse events have been documented in both adult and pediatric patients, including those with no corresponding diagnostic history. CONCLUSION: Perampanel is a novel adjunctive antiepileptic medication that is an effective option for adolescents and adults with partial seizures, and primarily generalized tonic-clonic seizures uncontrolled with other medications. PMID- 29042750 TI - Current perspective on rituximab in rheumatic diseases. AB - The steadily increasing knowledge regarding pathogenetic mechanisms in autoimmune rheumatic diseases has paved the way to different therapeutic approaches. In particular, the market entry of biologics has dramatically modified the natural history of rheumatic chronic inflammatory diseases with a meaningful impact on patients' quality of life. Among the wide spectrum of available biological treatments, rituximab (RTX), first used in the treatment of non-Hodgkin's lymphoma, was later approved for rheumatoid arthritis and anti-neutrophil cytoplasmic antibodies-associated vasculitis. Nowadays, in rheumatology, RTX is also used with off-label indications in patients with systemic sclerosis, Sjogren's syndrome and systemic lupus erythematosus. RTX is a monoclonal antibody directed to CD20 molecules expressed on the surfaces of pre-B and mature B lymphocytes. It acts by causing apoptosis of these cells with antibody- and complement-dependent cytotoxicity. As inflammatory responses to cell-associated immune complexes are key elements in the pathogenesis of several autoimmune rheumatic diseases, such an approach might be effective in these patients. In fact, RTX, by promoting the rapid and long-term depletion of circulating and lymphoid tissue-associated B cells, leads to a lower recruitment of these effector cells at sites of immune complex deposition, thus reducing inflammation and tissue damage. RTX is of the most interest to rheumatologists as it represents an important additional therapeutic approach. Thus, the advent in clinical practice of approved RTX biosimilars, such as CT-P10, may be of help in improving treatment access as well as in reducing costs. PMID- 29042754 TI - Erratum: Patients' beliefs about adherence to oral antidiabetic treatment: a qualitative study [Corrigendum]. AB - [This corrects the article on p. 413 in vol. 9, PMID: 25792814.]. PMID- 29042753 TI - Functional and morphological effects of diazepam and midazolam on tumor vasculature in the 9L gliosarcoma brain tumor model using dynamic susceptibility contrast MRI: a comparative study. AB - Antiangiogenic therapy attenuates tumor growth by reducing vascularization. Diazepam (DZP) and midazolam (MZL) have antiangiogenic properties in human umbilical vein endothelial cells. Thus, we investigated the antiangiogenic activity of DZP and MZL in the rat 9L gliosarcoma brain tumor model. The effect on tumor vasculature was evaluated using dynamic susceptibility contrast magnetic resonance imaging with gradient-echo (GE) and spin-echo (SE) to assess perfusion parameters, including cerebral blood volume (CBV), cerebral blood flow (CBF), mean transit time (MTT), and mean vessel diameter. The GE-normalized CBF (nCBF) in the tumors of untreated controls was significantly lower than that in normal brain tissue, whereas the CBV and MTT were higher. DZP- and MZL-treated rats had higher CBF and lower CBV and MTT values than did untreated controls. The tumor size decreased significantly to 33.5% in DZP-treated rats (P<0.001) and 22.5% in MZL-treated rats (P<0.01) relative to controls. The SE-normalized CBV was lower in DZP-treated (32.9%) and MZL-treated (10.6%) rats compared with controls. The mean vessel diameter decreased significantly by 32.5% in DPZ-treated and by 24.9% in MZL-treated rats compared with controls (P<0.01). The GE and SE nCBF values were higher in DZP-treated (49.9% and 40.1%, respectively) and MZL-treated (41.2% and 32.1%, respectively) rats than in controls. The GE- and SE-normalized MTTs were lower in DZP-treated (48.2% and 59.8%, respectively) and MZL-treated (40.5% and 51.2%, respectively) rats than in controls. Both DZP and MZL had antiangiogenic effects on tumor perfusion and vasculature; however, the antiangiogenic activity of DZP is more promising than that of MZL. PMID- 29042755 TI - Clinical data combined with radiological imaging improves the accuracy of TNM staging of pancreatic body and tail adenocarcinoma. AB - PURPOSE: Pancreatic body and tail adenocarcinoma (PBTA) remains one of the deadliest cancers, and current radiological modalities still have limitations on the staging of PBTA. Improving PBTA staging will contribute to the management of this disease. PATIENTS AND METHODS: Clinicopathological characteristics of 91 surgically treated PBTA patients were retrospectively retrieved. Clinical data associated with postoperative tumor staging (pTNM) were assessed using ordinal logistic regression model. Discriminant analysis was performed using function formula based on multivariate analysis results; further cross-validation was conducted by Bootstrap methods. RESULTS: Multivariate analysis showed that carbohydrate antigen 19-9 >=955.0 U/L, albumin, and alkaline phosphatase/total bilirubin ratio were independent factors contributing to improved accuracy of pTNM staging. Discriminant analysis exhibited better performance and showed that the probability of accurate prediction of pTNM stage was 90.6% and the probability of cross-validation was 85.9%. After excluding patients with preoperative diagnosis of stage IV disease, the probability of accurate prediction of pTNM stage was 86.1% and the probability of cross-validation was 75.0%. CONCLUSION: The combination of imaging and clinical data has higher accuracy in staging PBTA than radiological data alone. A model proposed in this study will improve the management of PBTA. PMID- 29042756 TI - Psychological intervention improves life quality of patients with laryngeal cancer. AB - BACKGROUND: The purpose of this study is to examine the effect of psychological intervention on the life quality of patients with laryngeal cancer. METHODS: Two hundred and ten patients with laryngeal cancer were randomly assigned to the study group receiving psychological intervention and control group receiving routine nursing care. The Hamilton Depression Scale (HAMD), Hamilton Anxiety Scale (HAMA), and the Europe Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) were used to evaluate life quality. RESULTS: There were no significant differences in the scores of HAMD, HAMA, and EORTC QLQ-C30 between the 2 groups before treatment (P>0.05). After treatment, the scores in the study group were significantly different to those in the control group (P<0.05). In addition, the satisfaction rate and compliance rate of patients in the study group were increased, compared to the control group (P<0.05). CONCLUSION: Psychological intervention is beneficial in improving life quality in patients with laryngeal cancer after surgery. PMID- 29042757 TI - Cognitive deficits and self-care behaviors in elderly adults with heart failure. AB - INTRODUCTION: Elderly adults with heart failure (HF) may have problems with self care behaviors because of cognitive deficits. Self-care deficits have been found to be significantly associated with negative health care outcomes among HF patients. The aim of this paper was to assess cognitive deficits and the level of self-care ability in elderly patients with HF, and to determine if a relationship exists between cognitive deficits and self-care. MATERIALS AND METHODS: The study included 270 elderly patients (mean age: 72.5 years) with HF. We used the Mini Mental State Examination Scale (MMSE) to evaluate cognitive functioning, and the European Heart Failure Self-care Behavior Scale, revised into a nine-item scale (EHFScBS-9), to evaluate self-care behaviors. Associations between the variables were examined using multiple regression analysis. RESULTS: Lower scores in both MMSE and EHFScBS-9 questionnaires were correlated with older age, living alone, lower education, longer duration of illness, higher number of rehospitalizations, as well as lower left ventricular ejection fraction and higher New York Heart Association (NYHA) class. The multiple regression analysis was used for evaluation of the impact of the following predictors: MMSE score, age, duration of illness, ejection fraction, number of hospitalizations, sex, residence, education, relationship status, and NYHA class on EHFScBS-9 score. CONCLUSIONS: Elderly patients with HF may have worse self-care behaviors because of their cognitive deficits. Age was the strongest predictor of worse MMSE scores. Multidisciplinary health teams should pay attention to the special needs of elderly patients who live with their illness for many years and have no social support because of living alone. PMID- 29042758 TI - Prescribing of psychotropic medication for nursing home residents with dementia: a general practitioner survey. AB - OBJECTIVE: The aim of this study was to identify factors influencing the prescribing of psychotropic medication by general practitioners (GPs) to nursing home residents with dementia. SUBJECTS AND METHODS: GPs with experience in nursing homes were recruited through professional body newsletter advertising, while 1,000 randomly selected GPs from southeastern Australia were invited to participate, along with a targeted group of GPs in Tasmania. An anonymous survey was used to collect GPs' opinions. RESULTS: A lack of nursing staff and resources was cited as the major barrier to GPs recommending non-pharmacological techniques for behavioral and psychological symptoms of dementia (BPSD; cited by 55%; 78/141), and increasing staff levels at the nursing home ranked as the most important factor to reduce the usage of psychotropic agents (cited by 60%; 76/126). CONCLUSION: According to GPs, strategies to reduce the reliance on psychotropic medication by nursing home residents should be directed toward improved staffing and resources at the facilities. PMID- 29042759 TI - Early and intermediate age-related macular degeneration: update and clinical review. AB - Age-related macular degeneration (AMD) is the leading cause of irreversible central vision loss in developed countries. With the aging of population, AMD will become globally an increasingly important and prevalent disease worldwide. It is a complex disease whose etiology is associated with both genetic and environmental risk factors. An extensive decline in the quality of life and progressive need of daily living assistance resulting from AMD among those most severely affected highlights the essential role of preventive strategies, particularly advising patients to quit smoking. In addition, maintaining a healthy diet, controlling other risk factors (such as hypertension, obesity, and atherosclerosis), and the use of nutritional supplements (antioxidants) are recommendable. Genetic testing may be especially important in patients with a family history of AMD. Recently, unifying criteria for the clinical classification of AMD, defining no apparent aging changes; normal aging changes; and early, intermediate, and late AMD stages, are of value in predicting AMD risk of progression and in establishing recommendations for the diagnosis, therapeutic approach, and follow-up of patients. The present review is focused on early and intermediate AMD and presents a description of the clinical characteristics and ophthalmological findings for these stages, together with algorithms for the diagnosis and management of patients, which are easily applicable in daily clinical practice. PMID- 29042760 TI - A scoping review of crisis teams managing dementia in older people. AB - BACKGROUND: Research on crisis teams for older adults with dementia is limited. This scoping review aimed to 1) conduct a systematic literature review reporting on the effectiveness of crisis interventions for older people with dementia and 2) conduct a scoping survey with dementia crisis teams mapping services across England to understand operational procedures and identify what is currently occurring in practice. METHODS: For the systematic literature review, included studies were graded using the Critical Appraisal Skills Programme checklist. For the scoping survey, Trusts across England were contacted and relevant services were identified that work with people with dementia experiencing a mental health crisis. RESULTS: The systematic literature review demonstrated limited evidence in support of crisis teams reducing the rate of hospital admissions, and despite the increase in number of studies, methodological limitations remain. For the scoping review, only half (51.8%) of the teams had a care pathway to manage crises and the primary need for referral was behavioral or psychological factors. CONCLUSION: Evidence in the literature for the effectiveness of crisis teams for older adults with dementia remains limited. Being mainly cohort designs can make it difficult to evaluate the effectiveness of the intervention. In practice, it appears that the pathway for care managing crisis for people with dementia varies widely across services in England. There was a wide range of names given to the provision of teams managing crisis for people with dementia, which may reflect the differences in the setup and procedures of the service. To provide evidence on crisis intervention teams, a comprehensive protocol is required to deliver a standardized care pathway and measurable intervention as part of a large-scale evaluation of effectiveness. PMID- 29042761 TI - Understanding institutional stakeholders' perspectives on multidrug-resistant bacterial organism at the end of life: a qualitative study. AB - BACKGROUND: Information lacks about institutional stakeholders' perspectives on management approaches of multidrug-resistant bacterial organism in end-of-life situations. The term "institutional stakeholder" includes persons in leading positions with responsibility in hospitals' multidrug-resistant bacterial organism management. They have great influence on how strategies on multidrug resistant bacterial organism management approaches in institutions of the public health system are designed. This study targeted institutional stakeholders' individual perspectives on multidrug-resistant bacterial organism colonization or infection and isolation measures at the end of life. METHODS: Between March and December 2014, institutional stakeholders of two study centers, a German palliative care unit and a geriatric ward, were queried in semistructured interviews. Interviews were audiotaped, transcribed verbatim, and analyzed qualitatively with the aid of the software MAXQDA for qualitative data analysis using principles of Grounded Theory. In addition, two external stakeholders were interviewed to enrich data. RESULTS: Key issues addressed by institutional stakeholders (N=18) were the relevance of multidrug-resistant bacterial organism in palliative and geriatric care, contradictions between hygiene principles and patients' and family caregivers' needs and divergence from standards, frame conditions, and reflections on standardization of multidrug-resistant bacterial organism end-of-life care procedures. Results show that institutional stakeholders face a dilemma between their responsibility in protecting third persons and ensuring patients' quality of life. Until further empirical evidence establishes a clear multidrug-resistant bacterial organism management approach in end-of-life care, stakeholders suggest a case-based approach. CONCLUSION: The institutional stakeholders' perspectives and their suggestion of a case-based approach advance the development process of a patient-, family-, staff-, and institutional-centered approach of how to deal with multidrug-resistant bacterial organism-positive patients in end-of-life care. Institutional stakeholders play an important role in the implementation of recommendations following this approach. PMID- 29042762 TI - Assessing the nutritional status of hospitalized elderly. AB - PURPOSE: The increasing number of elderly people worldwide throughout the years is concerning due to the health problems often faced by this population. This review aims to summarize the nutritional status among hospitalized elderly and the role of the nutritional assessment tools in this issue. METHODS: A literature search was performed on six databases using the terms "malnutrition", "hospitalised elderly", "nutritional assessment", "Mini Nutritional Assessment (MNA)", "Geriatric Nutrition Risk Index (GNRI)", and "Subjective Global Assessment (SGA)". RESULTS: According to the previous studies, the prevalence of malnutrition among hospitalized elderly shows an increasing trend not only locally but also across the world. Under-recognition of malnutrition causes the number of malnourished hospitalized elderly to remain high throughout the years. Thus, the development of nutritional screening and assessment tools has been widely studied, and these tools are readily available nowadays. SGA, MNA, and GNRI are the nutritional assessment tools developed specifically for the elderly and are well validated in most countries. However, to date, there is no single tool that can be considered as the universal gold standard for the diagnosis of nutritional status in hospitalized patients. CONCLUSION: It is important to identify which nutritional assessment tool is suitable to be used in this group to ensure that a structured assessment and documentation of nutritional status can be established. An early and accurate identification of the appropriate treatment of malnutrition can be done as soon as possible, and thus, the malnutrition rate among this group can be minimized in the future. PMID- 29042763 TI - Quality of life and physical activity in an older working-age population. AB - OBJECTIVE: Physical activity can be an effective means of prevention and therapy of many psychosomatic disorders. It can also have a significant impact on the quality of life of older working-age people. The aim of the present study was to assess the relationships between quality of life and physical activity in older working-age people from Wroclaw, Poland. MATERIALS AND METHODS: The study group comprised 1,013 people, including 565 women and 448 men, aged 55-64 years (59.1+/ 2.9 years). The study took form of a questionnaire survey. The participants assessed their physical activity and quality of life using the International Physical Activity Questionnaire Short Version (IPAQ-SF) and the World Health Organization Quality of Life (WHOQOL-BREF), respectively. RESULTS: The highest mean indices of general quality of life, perceived health status, and quality of life in the physical, psychological, social, and environmental domains were shown by respondents whose intensity of physical activity was the highest. Moreover, the odds of high assessment of overall quality of life increased with respondents' higher levels of physical activity. CONCLUSION: Quality of life improvement programs should also involve increased physical activity components. PMID- 29042764 TI - The association between objectively measured physical activity and morning symptoms in COPD. AB - PURPOSE: The morning is the most bothersome period for COPD patients. Morning symptom severities in different Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages are not well studied. Furthermore, factors that are associated with morning symptoms, especially the associations with objectively measured physical activity, are also not well described. MATERIALS AND METHODS: The aim of this cross-sectional observational study was to assess morning symptom severity in GOLD A, B, C and D patients, according to the definitions of the GOLD 2015 statement. Morning symptoms were assessed with the PRO-Morning COPD Symptoms Questionnaire. Differences in morning symptom severity between different COPD stages were assessed with a one-way analysis of variance followed by post hoc analyses. The association between dyspnea severity (assessed with the modified Medical Research Council scale), health status, airflow limitation, lung hyperinflation, anxiety and depression, inflammatory parameters, exacerbations, objectively measured physical activity parameters retrieved from accelerometry and morning symptom severity was evaluated using linear regression analysis. RESULTS: Eighty patients were included (aged 65.6+/-8.7 years, forced expiratory volume in 1 second [FEV1] % predicted 55.1+/-16.9). Mean (+/-SD) morning symptom score was 19.7 (+/-11.7). Morning symptom severity was significantly different between COPD stages: mean (+/-SD) score in GOLD A was 9.7 (+/-7.2), in GOLD B 19.8 (+/-10.7), in GOLD C 8.6 (+/-9.3) and in GOLD D 23.8 (+/-11.2) (p<0.001). Lower health status, more symptoms, increased anxiety and depression, less physical activity (all p<0.001) and lower FEV1 (p=0.03) were associated with an increased morning symptom severity. CONCLUSION: Patients with overall more symptomatic COPD have significant higher morning symptom scores. Morning symptom severity was associated with important clinical outcomes: lower health status, more symptoms, increased anxiety and depression, fewer steps a day, less time in moderate and vigorous physical activity with bouts of at least 10 minutes and lower FEV1. The data suggest that morning symptoms should be carefully assessed in addition to assessment by general COPD-specific questionnaires, especially in those with more symptomatic COPD. More research is needed on potential therapies to improve morning symptoms; this study shows potential targets for intervention. PMID- 29042765 TI - Risk of cancer after lung transplantation for COPD. AB - BACKGROUND: The risk of cancer is increased and affects survival after lung transplantation (LTx), but has not been well characterized in COPD. We aimed to evaluate the incidence and prognosis of cancer following LTx for COPD. METHODS: A prospective, population-based study of patients undergoing LTx for end-stage COPD at the two transplantation centers in Sweden between 1990-2013, with follow-up for incident cancer and death, using national registers. The excess risk of cancer was calculated as standardized incidence ratios compared with the general population matched for age, sex, and calendar year. Risk factors for cancer were analyzed using Fine-Gray regression, and survival after cancer diagnosis with Kaplan-Meier. RESULTS: In total, 331 patients (mean age 55.4 years; 64% women; 97% former smokers) were included. At a median follow-up of 2.8 years, 35% of patients had developed cancer and the risk was increased more than 10-fold ([95% CI] 8.1-11.8). The highest excess risks were for non-Hodgkin lymphoma (20.8 66.7), skin cancer (20.3-35.2), lung (11.7-31.2), liver (3.6-51.6), and colorectal cancer (6.1-19.5). Median survival was longer for skin cancer (8 years; 95% CI, 3-15) compared with non-skin cancer (4 years; 95% CI, 2.8-4.8; p<0.001). CONCLUSION: The cancer risk is markedly increased after LTx for COPD. It could not be predicted by the factors evaluated, but contributed significantly to a negative prognosis. PMID- 29042766 TI - Use of the forced-oscillation technique to estimate spirometry values. AB - PURPOSE: Spirometry is sometimes difficult to perform in elderly patients and in those with severe respiratory distress. The forced-oscillation technique (FOT) is a simple and noninvasive method of measuring respiratory impedance. The aim of this study was to determine if FOT data reflect spirometric indices. PATIENTS AND METHODS: Patients underwent both FOT and spirometry procedures prior to inclusion in development (n=1,089) and validation (n=552) studies. Multivariate linear regression analysis was performed to identify FOT parameters predictive of vital capacity (VC), forced VC (FVC), and forced expiratory volume in 1 second (FEV1). A regression equation was used to calculate estimated VC, FVC, and FEV1. We then determined whether the estimated data reflected spirometric indices. Agreement between actual and estimated spirometry data was assessed by Bland-Altman analysis. RESULTS: Significant correlations were observed between actual and estimated VC, FVC, and FEV1 values (all r>0.8 and P<0.001). These results were deemed robust by a separate validation study (all r>0.8 and P<0.001). Bias between the actual data and estimated data for VC, FVC, and FEV1 in the development study was 0.007 L (95% limits of agreement [LOA] 0.907 and -0.893 L), -0.064 L (95% LOA 0.843 and -0.971 L), and -0.039 L (95% LOA 0.735 and -0.814 L), respectively. On the other hand, bias between the actual data and estimated data for VC, FVC, and FEV1 in the validation study was -0.201 L (95% LOA 0.62 and 1.022 L), -0.262 L (95% LOA 0.582 and -1.106 L), and -0.174 L (95% LOA 0.576 and 0.923 L), respectively, suggesting that the estimated data in the validation study did not have high accuracy. CONCLUSION: Further studies are needed to generate more accurate regression equations for spirometric indices based on FOT measurements. PMID- 29042767 TI - Effectiveness of treatment with nebulized colistin in patients with COPD. AB - OBJECTIVES: To analyze whether the introduction of nebulized colistin in patients with chronic obstructive pulmonary disease (COPD) and infection with Pseudomonas aeruginosa (PA) is associated with a decrease of the number and duration of severe exacerbations. MATERIALS AND METHODS: Thirty six patients with COPD and infection with PA treated with nebulized colistin attending a day hospital during a 5-year (January 2010-December 2014) period were prospectively included. Repeated-measures t-tests were used to assess whether the introduction of colistin was associated with changes in the number of exacerbations or the length of the hospitalizations, comparing for each patient the year prior to the introduction of colistin with the year after. RESULTS: After the introduction of colistin, the number of admissions decreased from 2.0 to 0.9 per individual year (P=0.0007), and hospitalizations were shorter (23.3 vs 10.9 days, P=0.00005). These results persisted when patients with and without bronchiectasis or with and without persistence of Pseudomonas were separately analyzed. No pre-post differences were detected in the number of exacerbations not requiring admission. CONCLUSION: Nebulized colistin seems associated with a strong decrease in the number and duration of hospitalizations due to exacerbation in patients with COPD and infection with PA. Clinical trials with a larger number of patients are needed in order to confirm these results. PMID- 29042768 TI - Systemic toxicity induced by aggregated layered double hydroxide nanoparticles. AB - Layered double hydroxide (LDH) nanoparticles are emerging as one of the promising nanomaterials for biomedical applications, but their systemic toxicity in vivo has received little attention. In the present study, the effects of inorganic nanoparticle aggregation on their systemic toxicity were examined. Remarkably, aggregation was observed after the mixing of naked LDH nanoparticles with saline or erythrocytes. Significant accumulation of the naked LDH nanoparticles in the lungs of mice was detected 1 h after intravenous administration, and the survival rate of mice was 0% after 6 repeated injections. Furthermore, flocculent precipitates in the alveoli and congestion in the lung interstitium were observed in the dead mice. However, lipid membrane-coated LDH nanoparticles would not form aggregates and could be injected intravenously >6 times without causing death. These findings suggested that repeated injections of LDH were lethal even at low dose (30 mg/kg), and lipid membrane coating can be considered as an approach for reducing this risk. PMID- 29042769 TI - Bioabsorbable self-retaining PLA/nano-sized beta-TCP cervical spine interbody fusion cage in goat models: an in vivo study. AB - STUDY DESIGN: This is an experimental animal study. OBJECTIVE: The objective of this study was to compare an anterior cervical discectomy and interbody fusion of a novel polylactide/nano-sized beta-tricalcium phosphate (PLA/nbeta-TCP) bioabsorbable self-retaining cervical fusion cage (BCFC) with an autologous bone graft and polyetheretherketone (PEEK) cages. BACKGROUND: Although PLA cervical cages have potential advantages compared with traditional materials, they are not currently routinely used in spine surgery because of undesirable effects such as the lack of osteoconductivity and osteolysis around the implant. This study involved the manufacturing of a bioabsorbable cage from PLA/nbeta-TCP that was then used as a device for anterior cervical discectomy and fusion (ACDF) on a goat cervical spine fusion model. MATERIALS AND METHODS: Eighteen goats underwent C3/C4 discectomy and were randomly divided into three groups based on the following methods: Group A (n=6), an autologous bone graft; Group B (n=6), PEEK cage filled with an autologous graft; and Group C (n=6), BCFC filled with an autologous iliac bone. Radiography was performed preoperatively and postoperatively and at 1, 4, 8, and 12 weeks after the operation. Disc space height (DSH) was measured at the same time. After 12 weeks, the fused segments were harvested and evaluated with functional radiographic views, biomechanical testing, and histological analyses. RESULTS: Over a 12-week period, the BCFC and PEEK cage groups exhibited significantly higher DSH values than the bone graft group. Additionally, the BCFC group yielded a significantly lower range of motion in axial rotation than both the autologous bone graft and PEEK cage groups. A histologic evaluation revealed an increased intervertebral bone volume/total volume ratio and better interbody fusion in the BCFC group than in the other groups. CONCLUSION: The BCFC device exhibited better results than the autologous bone graft and PEEK cages in single-level ACDF models in vivo. This device may be a potential alternative to the current PEEK cages. PMID- 29042770 TI - BSA-assisted synthesis of ultrasmall gallic acid-Fe(III) coordination polymer nanoparticles for cancer theranostics. AB - Protein-related nanotheranostic agents hold great promise as tools to serve many clinical applications. Proteins such as BSA are used to regulate the synthesis of nondegradable inorganic nanoparticles (NPs). To fully employ the potential of such proteins, a new type of biosafe nanotheranostic agent must be designed to optimize BSA as a biomineralization agent. Here, a straightforward BSA-assisted biomineralization method was developed to prepare gallic acid (GA)-Fe(III) coordination polymer NPs. BSA-coated GA-Fe (GA-Fe@BSA) NPs were ultrasmall (3.5 nm) and showed good biocompatibility, a lower r2:r1 ratio (1.06), and strong absorption in the visible near-infrared region. T1-weighted magnetic resonance imaging of tumor-bearing mice before and after intratumoral injection with GA Fe@BSA NPs definitively demonstrated positive change. In a subsequent in vivo study, antitumor activity was precipitated by intratumoral injection of GA-Fe@BSA NPs combined with laser treatment, suggesting excellent outcomes with this treatment method. These results describe a successful protocol in which BSA regulated the synthesis of benign organic polymer NPs. GA-Fe@BSA NPs have the potential to be ideal agents to be used in clinical theranostic nanoplatforms. PMID- 29042772 TI - Erratum: Polyethylenimine-based micro/nanoparticles as vaccine adjuvants [Corrigendum]. AB - [This corrects the article on p. 5443 in vol. 12, PMID: 28814862.]. PMID- 29042771 TI - Styrene maleic acid-encapsulated RL71 micelles suppress tumor growth in a murine xenograft model of triple negative breast cancer. AB - Patients with triple negative breast cancer have a poor prognosis due in part to the lack of targeted therapies. In the search for novel drugs, our laboratory has developed a second-generation curcumin derivative, 3,5-bis(3,4,5 trimethoxybenzylidene)-1-methylpiperidine-4-one (RL71), that exhibits potent in vitro cytotoxicity. To improve the clinical potential of this drug, we have encapsulated it in styrene maleic acid (SMA) micelles. SMA-RL71 showed improved biodistribution, and drug accumulation in the tumor increased 16-fold compared to control. SMA-RL71 (10 mg/kg, intravenously, two times a week for 2 weeks) also significantly suppressed tumor growth compared to control in a xenograft model of triple negative breast cancer. Free RL71 was unable to alter tumor growth. Tumors from SMA-RL71-treated mice showed a decrease in angiogenesis and an increase in apoptosis. The drug treatment also modulated various cell signaling proteins including the epidermal growth factor receptor, with the mechanisms for tumor suppression consistent with previous work with RL71 in vitro. The nanoformulation was also nontoxic as shown by normal levels of plasma markers for liver and kidney injury following weekly administration of SMA-RL71 (10 mg/kg) for 90 days. Thus, we report clinical potential following encapsulation of a novel curcumin derivative, RL71, in SMA micelles. PMID- 29042773 TI - Diamond, graphite, and graphene oxide nanoparticles decrease migration and invasiveness in glioblastoma cell lines by impairing extracellular adhesion. AB - The highly invasive nature of glioblastoma is one of the most significant problems regarding the treatment of this tumor. Diamond nanoparticles (ND), graphite nanoparticles (NG), and graphene oxide nanoplatelets (nGO) have been explored for their biomedical applications, especially for drug delivery. The objective of this research was to assess changes in the adhesion, migration, and invasiveness of two glioblastoma cell lines, U87 and U118, after ND, NG, and nGO treatment. All treatments affected the cell surface structure, adhesion-dependent EGFR/AKT/mTOR, and beta-catenin signaling pathways, decreasing the migration and invasiveness of both glioblastoma cell lines. The examined nanoparticles did not show strong toxicity but effectively deregulated cell migration. ND was effectively taken up by cells, whereas nGO and NG strongly interacted with the cell surface. These results indicate that nanoparticles could be used in biomedical applications as a low toxicity active compound for glioblastoma treatment. PMID- 29042774 TI - Reductive nanocomplex encapsulation of cRGD-siRNA conjugates for enhanced targeting to cancer cells. AB - In this study, through covalent conjugation and lipid material entrapment, a combined modification strategy was established for effective delivery of small interfering RNA (siRNA). Single strands of siRNA targeting to BRAFV600E gene (siMB3) conjugated with cRGD peptide at 3'-terminus or 5'-terminus via cleavable disulfide bond was synthesized and then annealed with corresponding strands to obtain single and bis-cRGD-siRNA conjugates. A cationic lipid material (CLD) developed by our laboratory was mixed with the conjugates to generate nanocomplexes; their uniformity and electrical property were revealed by particle size and zeta potential measurement. Compared with CLD/siBraf, CLD/cRGD-siBraf achieved higher cell uptake and more excellent tumor-targeting ability, especially 21 (sense-5'/antisense-3"-cRGD-congjugate) nanocomplex. Moreover, they can regulate multiple pathways to varying degree and reduce acidification of endosome. Compared with the gene silencing of different conjugates, single or bis cRGD-conjugated siRNA showed little differences except 22 (5/5) which cRGD was conjugated at 5'-terminus of antisense strand and sense strand. However bis-cRGD conjugate 21 nanocomplex exhibited better specific target gene silencing at multiple time points. Furthermore, the serum stabilities of the bis-cRGD conjugates were higher than those of the single-cRGD conjugates. In conclusion, all these data suggested that CLD/bis-conjugates, especially CLD/21, can be an effective system for delivery of siRNA to target BRAFV600E gene for therapy of melanoma. PMID- 29042775 TI - Mesoporous composite nanoparticles for dual-modality ultrasound/magnetic resonance imaging and synergistic chemo-/thermotherapy against deep tumors. AB - High-intensity focused ultrasound (HIFU) is a promising and noninvasive treatment for solid tumors, which has been explored for potential clinical applications. However, the clinical applications of HIFU for large and deep tumors such as hepatocellular carcinoma (HCC) are severely limited by unsatisfactory imaging guidance, long therapeutic times, and damage to normal tissue around the tumor due to the high power applied. In this study, we developed doxorubicin/perfluorohexane-encapsulated hollow mesoporous Prussian blue nanoparticles (HMPBs-DOX/PFH) as theranostic agents, which can effectively guide HIFU therapy and enhance its therapeutic effects in combination with chemotherapy, by decreasing the cavitation threshold. We investigated the effects of this agent on ultrasound and magnetic resonance imaging in vitro and in vivo. In addition, we showed a highly efficient HIFU therapeutic effect against HCC tumors, as well as controlled drug release, owing to the phase-transitional performance of the PFH. We therefore conclude that HMPB-DOX/PFH is a safe and efficient nanoplatform, which holds significant promise for cancer theranostics against deep tumors in clinical settings. PMID- 29042777 TI - Self-rated cognitive functions following chemotherapy in patients with breast cancer: a 6-month prospective study. AB - PURPOSE: The purpose of the study was to evaluate subjective (self-rated), family rated, and objective (researcher-rated) cognitive functions in patients with breast cancer after chemotherapy. METHOD: We conducted a prospective study to trace self-rated cognitive functions in 30 patients with breast cancer at the completion of chemotherapy (T0) and 6 months later (T1). Subjective cognitive functions were assessed with Cognitive Failures Questionnaire (CFQ), Dysexecutive Questionnaire (DEX-S), and Everyday Memory Checklist (EMC-S) for attention, executive function, and episodic memory, respectively. Their family members also completed DEX-I and EMC-I for executive function and episodic memory, respectively. We also examined objective cognitive functions. Self-rated cognitive functions were compared with the normative data. They were compared between T0 and T1. We calculated correlation coefficients between self-rated and other cognitive functions. RESULTS: At T0, 6 (20.0%) and 2 (6.7%) participants showed higher DEX-S and EMC-S scores than the normative data, respectively, while no participant had abnormal CFQ scores. At T1, DEX-S and EMC-S scores were normalized in 3 (50.0%) and 2 (100.0%) participants, respectively. No participant showed increases in CFQ scores. No changes were found in objective cognitive functions from T0 to T1. DEX-S and DEX-I or EMC-S and EMC-I scores were correlated at both T0 and T1, which did not survive multiple corrections. There was no association between subjective and objective cognitive functions. CONCLUSION: Impairments in subjective cognition may be transient after chemotherapy in patients with breast cancer. Furthermore, patients and their families appear to share similar prospects on their cognitive functions. PMID- 29042778 TI - Motivation to change and posttreatment temptation to drink: a multicenter study among alcohol-dependent patients. AB - BACKGROUND: An inpatient 28-day rehabilitation program for alcohol dependence is focused on detoxification, enhancing motivation to change, and coping strategies for the management of emotional distress and temptation to drink. The aims of the present study were to investigate 1) changes over time in motivation to change, anxiety, and depression in individuals undergoing residential rehabilitation treatment for alcohol addiction, and 2) which pretreatment factors are associated with posttreatment temptation to drink. METHODS: We assessed 432 patients diagnosed with alcohol dependence based on the Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition, Text Revision) consecutively recruited from seven residential rehabilitation centers in Northern Italy. Patients were assessed by means of self-report questionnaires at the beginning of rehabilitation (pretreatment) and before their hospital discharge (posttreatment) regarding motivation to change and self-efficacy (motivation assessment of change - alcoholism version), readiness to change and temptation to drink (visual analog scales), and depression and anxiety (cognitive behavioral assessment - outcome evaluation). RESULTS: Results showed an overall improvement in motivation to change and a significant reduction over time in depression and anxiety levels for the total sample, particularly patients with low baseline level of temptation to drink. Multivariate linear regression analysis revealed that significant predictors of posttreatment temptation to drink were polysubstance dependence (p<0.001), readiness to change (p=0.01), and self-efficacy (p=0.05). CONCLUSION: Inpatients' rehabilitation for alcohol dependence is associated with an overall improvement in motivation to change and a significant reduction of psychological distress. Treatments for alcohol-dependent patients should focus on motivation to change, negative moods, and relapse prevention strategies for the management of craving. PMID- 29042776 TI - Effective use of nanocarriers as drug delivery systems for the treatment of selected tumors. AB - Nanotechnology has recently gained increased attention for its capability to effectively diagnose and treat various tumors. Nanocarriers have been used to circumvent the problems associated with conventional antitumor drug delivery systems, including their nonspecificity, severe side effects, burst release and damaging the normal cells. Nanocarriers improve the bioavailability and therapeutic efficiency of antitumor drugs, while providing preferential accumulation at the target site. A number of nanocarriers have been developed; however, only a few of them are clinically approved for the delivery of antitumor drugs for their intended actions at the targeted sites. The present review is divided into three main parts: first part presents introduction of various nanocarriers and their relevance in the delivery of anticancer drugs, second part encompasses targeting mechanisms and surface functionalization on nanocarriers and third part covers the description of selected tumors, including breast, lungs, colorectal and pancreatic tumors, and applications of relative nanocarriers in these tumors. This review increases the understanding of tumor treatment with the promising use of nanotechnology. PMID- 29042779 TI - Comparison of duloxetine and SSRI as a treatment option of painful physical symptoms associated with major depressive disorder. PMID- 29042780 TI - Frequencies of circulating B- and T-lymphocytes as indicators for stroke outcomes. AB - BACKGROUND: Stroke has high mortality and morbidity. Biomarkers are required for to predict stroke outcomes, which could help clinicians to provide rationale approaches for patient management. The dynamic changes in circulating immune cells have been reported in stroke patients and animal models of stroke. AIM: The aim of this study was to explore biomarkers to predict stroke outcomes by investigating the relationship between the frequencies of circulating immune cells and stroke outcomes. METHODS: In all, 50 acute ischemic stroke (AIS) patients were enrolled. Their blood samples were collected upon hospital admission and on day 1 and day 7 after stroke, and the leukocyte subsets were analyzed by flow cytometry. The dynamic changes in some types of immune cells in the AIS course and their correlation with clinical parameters were analyzed. Blood samples from 123 age- and gender-matched healthy subjects were used as controls. RESULTS: The proportions of T-lymphocytes and NK cells in stroke patients were significantly lower than in healthy controls. The frequencies of B- and T-lymphocytes were negatively correlated with stroke severity at onset, including neurological deficits as assessed by National Institutes of Health Stroke Scale (NIHSS), and infarct volume as measured by the diffusion-weighted images (DWIs) of magnetic resonance (MR). Logistic regression analysis showed that modified Rankin scale (mRs) scores, a score system for the long-term neurological dysfunctions, were negatively correlated with the percentage of B lymphocytes at stroke onset. CONCLUSION: The proportions of B- and T-lymphocytes are associated with neurological outcomes of stroke patients and might be used as an indicator for severity and prognosis of ischemic stroke. PMID- 29042781 TI - Children with borderline intellectual functioning and autism spectrum disorder: developmental trajectories from 4 to 11 years of age. AB - BACKGROUND: Studies on autism have tended to focus either on those with intellectual disability (ie, those with intellectual quotient [IQ] under 70) or on the group that is referred to as "high-functioning", that is, those with borderline, average or above average IQ. The literature on cognition and daily functioning in autism spectrum disorder combined specifically with borderline intellectual functioning (IQ 70-84) is limited. METHODS: From a representative group of 208 preschool children diagnosed with autism spectrum disorder, those 50 children in the group with borderline intellectual functioning at ages 4.5-6.5 years were targeted for follow-up at a median age of 10 years. A new cognitive test was carried out in 30 children. Parents were interviewed with a semi structured interview together with the Vineland Adaptive Behavior Scales (n=41) and the Autism-Tics, attention-deficit/hyperactivity disorder (AD/HD) and other comorbidities inventory (A-TAC) (n=36). RESULTS: Most children of interviewed parents presented problems within several developmental areas. According to A-TAC and the clinical interview, there were high rates of attention deficits and difficulties with regulating activity level and impulsivity. Vineland Adaptive Behavior Scales composite scores showed that at school age, a majority of the children had declined since the previous assessment at ages between 4.5 and 6.5 years. Almost half the tested group had shifted in their IQ level, to below 70 or above 84. CONCLUSION: None of the children assessed was without developmental/neuropsychiatric problems at school-age follow-up. The results support the need for comprehensive follow-up of educational, medical and developmental/neuropsychiatric needs, including a retesting of cognitive functions. There is also a need for continuing parent/family follow-up and support. PMID- 29042782 TI - Letter to the editor regarding the article "The use of Psychiatric Electroencephalography Evaluations Registry (PEER) to personalize pharmacotherapy". PMID- 29042784 TI - 19q12q13.2 duplication syndrome: neuropsychiatric long-term follow-up of a new case and literature update. AB - Genetic syndromes are well characterized by the phenotypic point of view, but little is known about their progression and patients' quality of life. We report a 10-year neuropsychiatric follow-up of a boy with duplication of chromosome 19. Cytogenetic investigation was requested at the age of 5 years for psychomotor and speech delay. The genomic study identified an 8.17 Mb duplication on chromosome 19q12q13.2. We propose that the long-term follow-up of our patient would help to delineate the neuropsychiatric phenotype associated with 19q duplication. This study could be a model for further long-term research in the neuropsychiatric follow-up of patients with 19q duplication syndrome. PMID- 29042783 TI - Supplementation of omega 3 fatty acids may improve hyperactivity, lethargy, and stereotypy in children with autism spectrum disorders: a meta-analysis of randomized controlled trials. AB - AIM: Deficiency of omega 3 fatty acids may be linked to autism spectrum disorder (ASD). Evidence about the potential therapeutic effects of supplementation of omega 3 fatty acids is lacking in ASD patients. METHODS: We searched major electronic databases from inception to June 21, 2017, for randomized clinical trials, which compared treatment outcomes between supplementation of omega 3 fatty acids and placebo in patients with ASD. An exploratory random-effects meta analysis of the included studies was undertaken. RESULTS AND CONCLUSION: Six trials were included (n=194). Meta-analysis showed that supplementation of omega 3 fatty acids improved hyperactivity (difference in means =-2.692, 95% confidence interval [CI] =-5.364 to -0.020, P=0.048, studies =4, n=109), lethargy (difference in means =-1.969, 95% CI =-3.566 to -0.372, P=0.016, studies =4, n=109), and stereotypy (difference in means =-1.071, 95% CI =-2.114 to -0.029, P=0.044, studies =4, n=109). No significant differences emerged between supplementation of omega 3 fatty acids and placebo in global assessment of functioning (n=169) or social responsiveness (n=97). Our preliminary meta analysis suggests that supplementation of omega 3 fatty acids may improve hyperactivity, lethargy, and stereotypy in ASD patients. However, the number of studies was limited and the overall effects were small, precluding definitive conclusions. Future large-scale randomized clinical trials are needed to confirm or refute our findings. PMID- 29042785 TI - MLC601 in vascular dementia: an efficacy and safety pilot study. AB - BACKGROUND AND AIM: Vascular dementia (VaD) is the second most common cause of dementia and currently there is scarcity of therapies for VaD. We aimed to investigate the efficacy and safety of MLC601 in the treatment of VaD. METHODS: In this multicenter, pilot, randomized, double-blind trial, 82 patients with VaD according to DSM-5 criteria received MLC601 or placebo capsules three times a day for 2 years. The primary efficacy end-point was evaluated by comparing Mini Mental State Examination (MMSE) and Alzheimer's Disease Assessment Scale cognitive subscale (ADAS-cog) score between the two groups over 2 years of study. Safety was also assessed by recording adverse events and abnormal laboratory results. RESULTS: Eighty-one patients completed the study and were included in the analysis. One patient was lost to follow-up in the placebo group. After 2 years, mean (+/-SD) changes in the MMSE score were -3.71 (+/-4.50) for MLC601 group and -9.33 (+/-4.80) for placebo group. ADAS-cog score showed (+/-SD) changes of 7.34 (+/-9.55) and 19.00 (+/-11.28) for MLC601 and placebo group, respectively. Repeated measures analyses showed that both MMSE and ADAS-cog scores were significantly better in the treatment group at 24 months (p<0.001). Ten (24.39%) patients reported predominantly transient gastrointestinal adverse events in MLC601 group. No patient left the study due to adverse events. There were no clinically significant abnormalities on laboratory tests. CONCLUSION: Patients treated with MLC601 over the 2 years showed dramatically better cognitive outcome compared with those treated with placebo. MLC601 was devoid of any serious adverse events and was well-tolerated. PMID- 29042786 TI - Interpersonal sensitivity mediates the effects of child abuse and affective temperaments on depressive symptoms in the general adult population. AB - BACKGROUND: Recent studies have suggested that multiple factors interact with the onset and prognosis of major depressive disorders. In this study, we investigated how child abuse, affective temperaments, and interpersonal sensitivity are interrelated, and how they affect depressive symptoms in the general adult population. SUBJECTS AND METHODS: A total of 415 volunteers from the general adult population completed the Patient Health Questionnaire-9, the Temperament Evaluation of Memphis, Pisa, Paris, and San Diego-Autoquestionnaire version, the Child Abuse and Trauma Scale, and the Interpersonal Sensitivity Measure, which are all self-administered questionnaires. Data were subjected to structural equation modeling (Mplus), and single and multiple regression analyses. RESULTS: The effect of child abuse on depressive symptoms was mediated by interpersonal sensitivity and 4 affective temperaments, including depressive, cyclothymic, anxious, and irritable temperaments. In addition, the effect of these temperaments on depressive symptoms was mediated by interpersonal sensitivity, indicating the indirect enhancement of depressive symptoms. In contrast to these 4 temperaments, the hyperthymic temperament did not mediate the effect of child abuse on depressive symptoms; its effect was not mediated by interpersonal sensitivity. However, a greater hyperthymic temperament predicted decreased depressive symptoms and interpersonal sensitivity, independent of any mediation effect. LIMITATIONS: Because this is a cross-sectional study, long-term prospective studies are necessary to confirm its findings. Therefore, recall bias should be considered when interpreting the results. As the subjects were adults from the general population, the results may not be generalizable towards all patients with major depression. CONCLUSION: This study suggests that child abuse and affective temperaments affect depressive symptoms partly through interpersonal sensitivity. Interpersonal sensitivity may have a major role in forming the link between abuse, affective temperament, and depression. PMID- 29042787 TI - Perinatal and follow-up outcome study of fetal anomalies with multidisciplinary consultation. AB - SYNOPSIS: The establishment of a multidisciplinary consultation system is necessary for the diagnosis of complicated fetal anomalies. PURPOSE: We aimed to investigate the incidences of different types of fetal anomalies and the influence of multidisciplinary consultation on fetal prognosis. PATIENTS AND METHODS: Multidisciplinary specialists include obstetricians, pediatricians, pediatric surgeons, and experts of ultrasound department and genetic counseling. Consultation was done if the fetal ultrasound examinations showed abnormality. Follow-up, assistance, and guidance for the fetus were achieved by phone calls. RESULTS: Ultrasound screening showed that the incidences of central nervous system anomaly and genitourinary anomaly were 25.80% (275/1,066) and 22.05% (235/1,066), respectively. The detection rates of fetal anomalies were 5.07% (54/1,066), 36.12% (385/1,066), and 58.82% (627/1,066) in pregnant women with gestational age of <20, 20-28, and >28 weeks, respectively. In addition, the fetal cerebral ventriculomegaly accounted for 40.73% of central nervous system malformation, while 71.43% cases with fetal cerebral ventriculomegaly were alleviated during the follow-up period. The proportion of hydronephrosis in genitourinary anomalies was 50.64%, and the remission rate of hydronephrosis was 67.23% during the follow-up period. CONCLUSION: The establishment of a multidisciplinary consultation system is necessary for the diagnosis of complicated fetal anomalies. The central nervous system anomaly and genitourinary anomaly are the most common fetal anomalies. In addition, the remission rates of cerebral ventriculomegaly and fetal hydronephrosis are high during the follow-up period. PMID- 29042789 TI - Linked-color imaging combined with the NICE classification system for optical diagnosis of colon polyps: new image-enhanced endoscopic technology for pathological prediction. AB - INTRODUCTION: Linked-color imaging (LCI) is a recently developed system used in endoscopy. It creates clear and bright endoscopic images using short-wavelength, narrow-band laser light combined with white laser light. The illuminating light and signal processing emphasize slight color differences in abnormal regions that approximate the normal color of the mucosa. As a result, regions initially appearing red become a deeper shade of red, while regions originally appearing white become brighter, yet with natural tones. This process facilitates recognition of slight differences in the color of the mucosa and clarifies the boundaries of the mucosal pit. AIM: To determine whether LCI of the colon can improve the correlation between endoscopic findings and pathological diagnosis. METHODS: Consecutive patients who underwent colonoscopy requiring polypectomy or removal by biopsy forceps if possible were recruited. Probable polyp histology was assessed by two endoscopists using the Narrow-band imaging International Colorectal Endoscopic (NICE) classification and LCI data. All detected polyps were sent to the pathology department for pathological diagnosis by two pathologists. RESULTS: In total, 94 polyps were found in 43 patients. The sensitivity, specificity, positive predictive value, and negative predictive value for neoplastic lesion prediction (NICE type2/3) were 96.5%, 83.8%, 90.2%, and 93.9%, respectively. CONCLUSION: LCI combined with the NICE classification system is a powerful tool for predicting probable histology of colon polyps. PMID- 29042788 TI - Decreased frequency of adenoidectomy by a 12-week nasal budesonide treatment. AB - OBJECTIVE: There is little evidence on the role of topical budesonide in reducing the frequency of adenoidectomy, although it was reported that topical budesonide can effectively ameliorate the symptoms of adenoid hypertrophy (AH). This study was aimed to investigate the possibility and safety of alternatives to adenoidectomy with a 12-week treatment with nasal budesonide. MATERIALS AND METHODS: One hundred patients with AH were randomized to receive either a double blind budesonide (1 mg once daily) or placebo treatment for 2 weeks by transnasal nebulization. A further 12-week open study, budesonide spray (64 MUg per nostril at bedtime) was administered to the treatment group. During the final 12 weeks of follow-up, the frequency of adenotonsillectomy, side effects, the degree of nasal obstruction, nasal discharge, and snoring were assessed. RESULTS: Out of the 100 total enrolled patients, 92 children with AH completed the study. After the 2 week treatment with transnasal budesonide nebulization, the symptoms of AH significantly decreased compared to the control group. Responders (n=26) who had initially improved showed significantly decreased symptoms of AH, and the frequency of adenotonsillectomy during the follow-up (14 and 26 weeks) was compared with that of the control group and non-responders (n=21) who did not respond to the initial 2-week budesonide therapy. The 12-week nasal budesonide treatment did not suppress the growth rate of children's height or cause other side effects. CONCLUSION: AH children who had improved after an initial 2-week budesonide therapy can achieve clinical improvements and decreased frequency of adenoidectomy following the therapy with a 12-week treatment with nasal budesonide. PMID- 29042790 TI - Evaluation of vitamin D levels in relation to coronary CT angiographic findings in an Iranian population. AB - BACKGROUND: Vitamin D deficiency, as a predisposing factor for coronary artery disease (CAD), is a subject of increasing interest. However, its role as a risk factor has not been proven. This study aimed to investigate the relationship between serum vitamin D levels and CAD. MATERIALS AND METHODS: Using a cross sectional design, 180 patients who were candidates for coronary computed tomography angiography (CCTA) were selected. Serum levels of vitamin D were measured and compared with the results of CCTA (including calcium score, and presence and severity of coronary artery involvement due to atherosclerotic plaques). RESULTS: The mean age of the participants was 60.5+/-10.6 years and the mean serum vitamin D level was 26.2+/-15.9 ng/dL (range, 3.5-83.2 ng/dL). Overall, 6.1% of the participants (n=11) had vitamin D deficiency, 56.1% (n=101) had insufficient levels of vitamin D, and 37.8% (n=68) had sufficient levels of vitamin D. The mean serum vitamin D level was significantly lower in patients with severe CAD (P=0.004). The serum vitamin D level in the "positive for CAD" group was 20.98 ng/mL, significantly lower than the level in the "negative for CAD" group (30.47 ng/mL; P<0.001). The mean calcium score among participants was 533.5+/-87.9. Based on the Spearman test, a significant negative correlation ( 0.21) was detected between the serum vitamin D level and coronary artery calcium score (CACS) (P=0.005). Conversely, the mean CACS in the vitamin D deficient group was significantly higher than in the insufficient and sufficient vitamin D groups (P<0.001 for both comparisons). CONCLUSION: Vitamin D deficiency was associated with coronary artery calcification and severity of coronary artery stenosis in Iranian patients. PMID- 29042791 TI - Profile of sacubitril/valsartan in the treatment of heart failure: patient selection and perspectives. AB - With an estimated prevalence of 5.8 million in the USA and over 23 million people worldwide, heart failure (HF) is growing in epidemic proportions. Despite the use of guideline-directed medical therapies such as angiotensin-converting enzyme inhibitors, beta-adrenergic blockers, angiotensin receptor blockers, and mineralocorticoid receptor antagonists for chronic systolic HF for almost two decades, HF remains a leading cause of morbidity, mortality, and health care expenditures. The Prospective Comparison of Angiotensin Receptor-Neprilysin Inhibitor with Angiotensin-Converting Enzyme Inhibitor to Determine Impact on Global Mortality and Morbidity in Heart Failure (PARADIGM-HF) trial provided compelling evidence for the cardiovascular and mortality benefit of sacubitril/valsartan when compared to enalapril in patients with heart failure and reduced ejection fraction (HFrEF). Sacubitril/valsartan performed better than enalapril across various HFrEF patient characteristics and showed substantial benefit in patients with other common comorbidities. Following the trial, the US Food and Drug Administration approved this drug for the treatment of HF. Various international HF consensus guidelines endorse sacubitril/valsartan as a class I recommendation for the management of symptomatic HFrEF. Although this high quality clinical study is the largest and the most globally represented trial in HFrEF patients, concerns have been raised regarding the generalizability of the trial results in real-world HF population. The gaps in US Food and Drug Administration labeling and guideline recommendations might lead to this medication being used in a larger population than it was studied in. In this review, we will discuss the current role of sacubitril/valsartan in the management of HF, concerns related to PARADIGM-HF and answers, shortcomings of this novel drug, effects on patient characteristics, real-world eligibility, and the role of ongoing and further investigations to clarify the profile of sacubitril/valsartan in the management of HF. PMID- 29042792 TI - Low dose of kaempferol suppresses the migration and invasion of triple-negative breast cancer cells by downregulating the activities of RhoA and Rac1. AB - PURPOSE: Triple-negative breast cancer (TNBC) is an especially aggressive and hard-to-treat disease. Although the anticancer role of kaempferol has been reported in breast cancer, the effect of kaempferol on TNBC remains unclear. MATERIALS AND METHODS: This experiment investigated the migration-suppressive role of a low dose of kaempferol in TNBC cells. Wound-healing assays and cell invasion assays were used to confirm the migration and invasion of cells treated with kaempferol or transfected indicated constructs. We evaluated the activations of RhoA, Rac1 and Cdc42 in TNBC cells with a Rho activation assay. A panel of inhibitors of estrogen receptor/progesterone receptor/human epidermal growth factor receptor 2 (ER/PR/HER2) treated non-TNBC (SK-BR-3 and MCF-7) cells and blocked the ER/PR/HER2 activity. Wound-healing assays and Rho activation assays were employed to measure the effect of kaempferol and ER/PR/HER2 inhibitors on Rho activation and cell migration rates. RESULTS: A low dose of kaempferol (20 MUmol/L) had a potent inhibitory effect on the migration and invasion of TNBC cells, but not on the migration of non-TNBC (SK-BR-3 and MCF-7) cells. The low dose of kaempferol downregulated the activations of RhoA and Rac1 in TNBC cells. Moreover, the low dose of kaempferol also inhibited the migration and RhoA activations of HER2-silence SK-BR-3 and ER/PR-silence MCF-7 cells. Overexpressed HER2 rescued the cell migration and RhoA and Rac1 activations of kaempferol treated MDA-MB-231 cells. CONCLUSION: The low dose of kaempferol inhibits the migration and invasion of TNBC cells via blocking RhoA and Rac1 signaling pathway. PMID- 29042793 TI - Theranostics in nuclear medicine practice. AB - The importance of personalized medicine has been growing, mainly due to a more urgent need to avoid unnecessary and expensive treatments. In nuclear medicine, the theranostic approach is an established tool for specific molecular targeting, both for diagnostics and therapy. The visualization of potential targets can help predict if a patient will benefit from a particular treatment. Thanks to the quick development of radiopharmaceuticals and diagnostic techniques, the use of theranostic agents has been continually increasing. In this article, important milestones of nuclear therapies and diagnostics in the context of theranostics are highlighted. It begins with a well-known radioiodine therapy in patients with thyroid cancer and then progresses through various approaches for the treatment of advanced cancer with targeted therapies. The aim of this review was to provide a summary of background knowledge and current applications, and to identify the advantages of targeted therapies and imaging in nuclear medicine practices. PMID- 29042794 TI - Comparison of microwave ablation and hepatic resection for hepatocellular carcinoma: a meta-analysis. AB - BACKGROUND AND AIMS: Hepatic resection (HRN) and microwave ablation (MWA) have significant advantages in treating hepatocellular carcinoma; however, it remains unclear which way produces better outcomes. This meta-analysis of cohort studies compared the treatments in terms of effectiveness and safety. METHODS: Six electronic databases (PubMed, Medline, EMBASE, Web of Science, EBSCO, and The Cochrane Library) were retrieved for studies comparing MWA and HRN. The meta analysis was conducted based on statement of preferred reporting items for systematic reviews and meta-analyses. RESULTS: Nine studies met the inclusion criteria, with a total of 1,480 patients. The overall meta-analysis demonstrated no significant difference in overall survival between the MWA group and the HRN group (HR =0.98, 95% CI =0.76-1.26, P=0.878). There was no difference in disease free survival between the MWA group and the HRN group (HR =1.16, 95% CI =0.79 1.71, P=0.442). Meanwhile, the meta-analysis demonstrated that MWA was associated with shorter operation time (standardized mean difference [SMD] =-1.37, 95% CI = 1.92 to -0.81, P=0.000), less amount of blood loss in operation (SWD =-1.19, 95% CI =-1.76 to -0.61, P=0.000), and less complications (OR =0.22, 95% CI =0.12 0.40, P=0.000) than HRN. CONCLUSION: In conclusion, our meta-analysis suggests that MWA may be superior to HRN as it is as effective as HRN in terms of overall survival, disease-free survival, tumor recurrence, and is associated with shorter operation time, less amount of blood loss, and fewer complications. PMID- 29042795 TI - Significant association of the EXO1 rs851797 polymorphism with clinical outcome of ovarian cancer. AB - BACKGROUND: Exonuclease 1 (EXO1), one of DNA mismatch repair pathway genes, functions in maintaining genomic stability and affects tumor progression. We hypothesized that genetic variations in EXO1 may predict clinical outcomes in epithelial ovarian cancer (EOC). METHODS: In this cohort study with 1,030 consecutive EOC patients, we genotyped four potentially functional polymorphisms in EXO1 by the Taqman assay and evaluated their associations with patients' survival. RESULTS: Using multivariate Cox proportional hazards regression models, we found that rs851797AG/GG genotypes were significantly associated with recurrence and cancer death (HR =1.30 and 1.38, 95% CI =1.11-1.52 and 1.02-1.88, respectively). Kaplan-Meier survival estimates showed that patients who carried rs851797AG/GG genotypes had poorer progression-free survival and poorer overall survival, compared with rs851797AA genotype carriers (log-rank test, P=0.002 and 0.025, respectively). Moreover, patients with older age at menophania, advanced stage tumor, or being received incomplete cytoreduction were more likely to be recurrent and dead. CONCLUSION: EXO1 rs851797 polymorphism can predict the clinical outcomes in EOC patients. In addition, age at menophania, FIGO stage, and complete cytoreduction might be independently prognostic factors of ovarian cancer. Large studies with functional experiments are warranted to validate these findings. PMID- 29042796 TI - TERT-CLPTM1 locus polymorphism (rs401681) is associated with the prognosis of hepatocellular carcinoma. AB - Telomere length is associated with the development of hepatocellular carcinoma (HCC), and recent studies have focused on the genetic alteration or polymorphism in telomere-maintaining genes. We examined the clinicopathologic and prognostic value of rs401681 polymorphism, located in the TERT-CLPTM1L locus, in HCC. The relationship between rs401681 variants and telomere length was also analyzed in 156 HCC patients. The rs401681 polymorphism had the following genotype frequencies: C/C in 51.3% of the samples, C/T in 39.7%, and T/T in 9.0%. Telomeres in the tumor samples were 4.04-fold longer, on average, than the telomeres in matched normal samples (SD =1.32), and there were no differences in telomere length according to rs401681 polymorphism (p=0.802). Our results indicate that the rs401681 C allele was significantly associated with increased T and International Union for Cancer Control stages (p<0.01). Univariate and multivariate survival analyses showed that HCC with C allele had poorer prognosis (p<0.01). In conclusion, our findings suggest that rs401681 is a possible prognostic biomarker for HCC patients. PMID- 29042797 TI - ER-positive breast cancer patients with more than three positive nodes or grade 3 tumors are at high risk of late recurrence after 5-year adjuvant endocrine therapy. AB - PURPOSE: Currently, although several clinical trials available give strong suggestions that extension of endocrine therapy has benefits, the risk level at which patients may benefit from extended endocrine therapy remains uncertain. This study aimed to identify the proportion of patients at a substantial risk of late recurrence after 5-year adjuvant endocrine therapy. PATIENTS AND METHODS: We reviewed 1,056 female patients with primary breast cancer who underwent curative resection between January 2006 and December 2011. Univariate and multivariate analyses were performed using the Cox proportional hazards regression model to identify prognostic factors. RESULTS: A total of 327 eligible patients were eventually enrolled in this study. Among them, 42 (12.8%) patients suffered from distant metastasis and 34 (10.4%) patients experienced locoregional recurrence after 5-year adjuvant endocrine therapy. In multivariate analysis, patients with more than three positive nodes (hazard ratio [HR] =2.176, 95% CI=1.071-4.421; P=0.032) and histologic grade 3 disease (HR=2.098, 95% CI=1.300-3.385; P=0.002) were significantly associated with high risk of late recurrence. However, only histologic grade 3 (HR=2.212, 95% CI=1.166-4.194; P=0.015) was significantly associated with high risk of distant metastasis. CONCLUSION: Late relapse after completion of 5-year adjuvant endocrine therapy was still common, and grade 3 and more than three positive nodes were the risk factors of late recurrence, while grade 3 was the only risk factor of late distant metastasis. These patients might benefit from extended endocrine therapy. PMID- 29042798 TI - Crizotinib, a MET inhibitor, inhibits growth, migration, and invasion of breast cancer cells in vitro and synergizes with chemotherapeutic agents. AB - MET is a receptor tyrosine kinase known for its pleiotropic effects in tumorigenesis. Dysregulations of MET expression and/or signaling have been reported and determined to be associated with inferior outcomes in breast cancer patients rendering MET a versatile candidate for targeted therapeutic intervention. Crizotinib is a multi-targeted small-molecule kinase inhibitor for MET, ALK, and ROS1 kinases. This study evaluated the anti-proliferative, cytotoxic, anti-migratory, and anti-invasive effects of crizotinib in breast cancer cells in vitro. Cell viability was assessed by 3-(4,5-dimethyl-2 thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) colorimetric assay. In vitro wound-healing assay was used to examine the effect of crizotinib on breast cancer cell migration. The expressions of Ki-67, MET, and phospho-MET receptors were characterized using immunofluorescence staining. Results showed that crizotinib has significant anti-proliferative activity on all mammary tumor cells with IC50 values of 5.16, 1.5, and 3.85 uM in MDA-MB-231, MCF-7, and SK-BR-3 cells, respectively. Crizotinib induced cytotoxic effects in all breast cancer cells examined. Combined treatment of small dose of crizotinib with paclitaxel or doxorubicin exhibited a highly synergistic inhibition of growth of MDA-MB-231 and MCF-7 cells with combination index values <1 while no significant effect was observed in SK-BR-3 cells compared with individual compounds. Treatment with crizotinib demonstrated a remarkable reduction in the expression of Ki-67 protein in all 3 tested cell lines. Crizotinib inhibited migration and invasion of MDA-MB 231 cells in a dose-dependent fashion. Crizotinib reduced MET receptor activation in MDA-MB-231 cells when treated at effective concentrations. In conclusion, crizotinib suppressed proliferation, migration, and invasion of breast cancer cells in vitro. The results of this study demonstrated that combined treatment of crizotinib with chemotherapeutic agents resulted in a synergistic growth inhibition of specific breast cancer cell lines. PMID- 29042799 TI - Asthma symptoms, mannitol reactivity and exercise-induced bronchoconstriction in adolescent swimmers versus tennis players. AB - BACKGROUND: Strenuous physical activity at an elite level is associated with an increased risk for asthma and, in some sports, also prevalence of allergies. The aim of this study was to investigate the prevalence of asthma and allergy among elite swimmers and tennis players and compare airway hyperreactivity to mannitol and exercise. MATERIALS AND METHODS: One hundred and one adolescent swimmers and 86 tennis players answered a questionnaire about respiratory symptoms and allergy and performed mannitol challenge and sport-specific exercise challenge. Atopy was assessed and fractional exhaled nitric oxide was measured. Mannitol positivity was defined as drop in FEV1 >=15% (ordinary criteria) and/or beta2-reversibility (>=15%) after provocation (extended criteria). A positive exercise test was defined as a drop in FEV1 >=10% (ordinary criteria) and/or beta2-reversibility (>=15%) after provocation (extended criteria). Club cell protein (CC16) was measured in urine before and after the challenges. RESULTS: Asthma symptoms were common in both groups. More swimmers had exercise-induced symptoms (77% versus 50%) and current asthma symptoms (56% versus 38%), compared to the tennis players. More swimmers also had a positive mannitol challenge test both using ordinary (26% versus 6%) and extended criteria (43% versus 17%), while the number of positive exercise tests did not differ. After exercise (but not mannitol) challenge, CC16 level was increased in both groups, but to a higher extent in tennis players. There were no differences in atopy, rhinitis or fractional exhaled nitric oxide. CONCLUSION: We found a high prevalence of asthma among elite swimmers and tennis players and a higher frequency of current asthma and positive mannitol challenge tests among the swimmers. This indicates an unfavorable exercise environment. PMID- 29042800 TI - Postpartum airway responsiveness and exacerbation of asthma during pregnancy - a pilot study. AB - BACKGROUND: Airway responsiveness and inflammation are associated with the clinical manifestations of asthma and the response to pharmacological therapy. OBJECTIVE: To investigate if airway responsiveness and inflammatory characteristics are related to asthma exacerbations during pregnancy. MATERIALS AND METHODS: In women with asthma who were prescribed controller medication and monitored closely during pregnancy, the risk of exacerbations was analyzed in relation to postpartum measures of fractional exhaled nitric oxide (FENO), skin prick test reactivity, static and dynamic lung volumes, diffusing capacity for carbon monoxide, bronchial responsiveness to inhaled mannitol, and inflammatory characteristics in induced sputum. Obtained data were analyzed in relation to exacerbation status during pregnancy. The PD15 is defined as the cumulative administered dose causing a 15% decline in forced expiratory volume in the first second (FEV1). RESULTS: Fifty women (mean age +/- standard deviation of 32+/-5 years) were enrolled over an 11-month period and examined on average 4 months postpartum. During pregnancy, 13 women had a total of 16 exacerbations (8 mild and 8 severe). Women with asthma exacerbation during pregnancy had more pronounced airway responsiveness to inhaled mannitol (geometric mean PD15 82 vs 171 mg, p=0.04) and were less likely to be atopic (62% vs 86%, respectively; p=0.04) than the non-exacerbators. No statistically significant difference was found between the 2 groups of women with regard to type of airway inflammation in sputum and fractional exhaled nitric oxide (FENO). CONCLUSION: More pronounced airway hyperresponsiveness together with nonatopic status appears to characterize women at high risk of exacerbation of asthma during pregnancy. PMID- 29042801 TI - Investigating a rare methicillin-resistant Staphylococcus aureus strain: first description of genome sequencing and molecular characterization of CC15-MRSA. AB - PURPOSE: Methicillin resistant Staphylococcus aureus CC15 strains (CC15-MRSA) have only been sporadically described in literature. This study was carried out to describe the genetic make-up for this rare MRSA strain. METHODS: Four CC15 MRSA isolates collected in Riyadh, Saudi Arabia, between 2013 and 2014 were studied. Two isolates were from clinical infection and 2 from retail meat products. Whole genome sequencing was carried out using Illumina HiSeq2500 genome analyzer. RESULTS: All the CC15-MRSA isolates had the multilocus sequence typing profile ST1535, 13-13-1-1-81-11-13, which is a single locus variant of ST15. Of the 6 contigs related to the SCC element, one comprised a recombinase gene ccrAA, ccrC-PM1, fusC and a helicase, another one included mvaS, dru, mecA and 1 had yobV and Q4LAG7. The SCC element had 5 transposase genes, namely 3 identical paralogs of tnpIS431 and 2 identical paralogs of tnpIS256. Two identical copies of a tnpIS256-based insertion element flank the aacA-aphD gene. Two copies of this insertion element were present with 1 located in the SCC element and another inserted into the sasC gene. A short 3 kb region, which lacks any bacteriophage structural genes and site-specific DNA integrase, was inserted into the hlb gene. The hsdM and the 5'-part of the hsdS gene are replaced by a copy of the hsdM/hsdS paralogs from nuSabeta giving rise to a new chimeric paralog of hsdS in nuSaalpha. CONCLUSION: CC15-MRSA shows a novel SCCmecV/SCCfus composite element. Its variant of hsdM/hsdS probably facilitated uptake of foreign mobile genetic elements that promoted emergence of CC15-MRSA. Close surveillance is needed to monitor spread and emergence of further CC15 MRSA strains. PMID- 29042802 TI - Utilization of fetal fibronectin testing and pregnancy outcomes among women with symptoms of preterm labor. AB - OBJECTIVES: To identify pregnant health plan members triaged through the emergency department (ED), including labor and delivery (ELD) units, with symptoms of preterm labor (PTL), and evaluate the use of fetal fibronectin (fFN) testing; and to calculate the rate of hospitalization and timing of delivery in relation to the ED visit. METHODS: Retrospective cohort study using Medical Outcomes Research for Effectiveness and Economics Registry(r), a national multipayer claims database. A cohort of pregnant women evaluated in an ELD with a diagnosis of PTL from June 2012 through November 2015 was identified. The proportion of women with PTL who received fFN testing was calculated. RESULTS: A total of 23,062 patients met the criteria for inclusion in the study. The rate of fFN testing prior to delivery was 12.0%. Of the 23,062 patients included in the analysis, 75.9% were discharged home. Of those who were discharged from the emergency room, one in five went on to deliver within 3 days and almost 96% of this group was not screened for the presence of fFN. Of the remaining 24.1% of patients admitted to the hospital, 91.3% delivered during their stay. In a sensitivity analysis, the percentage of women who delivered within 3 days of the ELD encounter was lower for women who received fFN testing only (6.6%) versus those who had a history of transvaginal ultrasound (TVUS) only (21.6%). Furthermore, the rate of delivery within 3 days was lowest among patients who had both fFN testing and TVUS (4.7%). CONCLUSION: The utilization of fFN testing is 12%. The majority of pregnant patients triaged through the ELD with symptomatic PTL do not receive an fFN test. As part of PTL evaluation, fFN testing may identify women at increased risk for preterm delivery and help determine appropriate patient management. PMID- 29042803 TI - The cost of successful antiviral therapy in hepatitis C patients: a comparison of IFN-free versus IFN-based regimens at an individual patient level in Australia. AB - BACKGROUND: Chronic hepatitis C remains a major global health burden with serious long-term consequences if left untreated. Recently the treatment standard of care has shifted to new interferon (IFN)-free drug regimens, which have been shown to be safe and effective. The aim of our study was to assess and compare medical resource utilization and costs of successfully treating patients with IFN-based and IFN-free therapies in Australia. METHODS: We performed a retrospective chart review of 30 HCV-infected patients successfully treated with IFN-based therapy between 2013 and 2015. We also generated a model for a virtual group of 100 genotype 1 (GT1) and 100 genotype 3 (GT3) patients treated with IFN-free therapy derived from national guidelines and clinical trial data. RESULTS: In comparison to virtual patients receiving IFN-free therapy, our IFN-treated patients on average had distinctively more liver clinic visits and blood tests. However, mean total cost per patient was $19,164 and $85,300 (AUD) more for GT1 and GT3 patients receiving IFN-free therapy, respectively. This difference was largely accounted for by higher antiviral drug costs. Of our 30 patients treated with IFN, total mean cost per patient during the study period was $33,595. CONCLUSION: Resource utilization is lower with IFN-free treatment, which reflects the reduced need for patient monitoring and improved side-effect profile of these new drugs. However, total costs are still largely dominated by antiviral drug costs, representing a huge burden on national budgets. Our insight into resource utilization and costs associated with both types of treatment can serve as a reference for future studies. PMID- 29042804 TI - Weight loss medications in Canada - a new frontier or a repeat of past mistakes? AB - Current methods for the treatment of excess weight can involve healthy behavior changes, pharmacotherapy, and surgical interventions. Many individuals are able to lose some degree of weight through behavioral changes; however, they are often unable to maintain their weight loss long-term. This is in part due to physiological processes that cannot be addressed through behavioral changes alone. Bariatric surgery, which is the most successful treatment for excess weight to date, does result in physiological changes that can help with weight loss and weight maintenance. However, many patients either do not qualify or elect to not have this procedure. Fortunately, research has recently identified changes in neurochemicals (i.e., orexigens and anorexigens) that occur during weight loss and contribute to weight regain. The neurochemicals and hormones may be able to be targeted by medications to achieve greater and more sustained weight loss. Two medications are approved in adjunction to lifestyle management for weight loss in Canada: orlistat and liraglutide. Both medications are able to target physiological processes to help patients lose weight and maintain a greater amount of weight loss than with just behavioral modifications alone. Two other weight management medications, which also target specific physiological processes to aid in weight loss and its maintenance, a bupropion/naltrexone combination and lorcaserin, are currently pending approval in Canada. Nonetheless, there remain significant barriers for health care professionals to prescribe medications for weight loss, such as a lack of training and knowledge in the area of obesity. Until this has been addressed, and we begin treating obesity as we do other diseases, we are unlikely to combat the increasing trend of obesity in Canada and worldwide. PMID- 29042805 TI - Efficacy of the combined use of a mild foaming cleanser and moisturizer for the care of infant skin. AB - OBJECTIVE: Despite the application of skin care treatments, many infants have skin problems such as dryness and erythema. We proposed a new combination skin care for infants which consisted of a foaming cleanser with lower surfactant activity and moisturizers that contained pseudo-ceramide. SUBJECTS AND METHODS: A total of 50 infants (age: 3-24 months) with insignificant levels of dry skin were enrolled in this usage trial. The parents washed the infants with the test cleanser while bathing and then applied the moisturizer (lotion or cream) containing pseudo-ceramide. Prior to and following the 4-week usage period, visual evaluation of the skin condition was conducted by a dermatologist, in addition to instrumental analysis. RESULTS: Erythema and papule, accompanied by dryness, were commonly observed at week 0. However, by week 4, these symptoms significantly improved; the condition of none of the subjects deteriorated. The number of infants with lower cutaneous barrier function and higher skin pH decreased. The parents of the infants recognized improvements in the skin symptoms and were appreciative of the test materials. CONCLUSION: The combined usage of the foaming cleanser with lower surfactant activity and a moisturizer containing pseudo-ceramide may be effective in maintaining healthy infant skin and ameliorating the skin symptoms. PMID- 29042806 TI - Feeding filaggrin: effects of l-histidine supplementation in atopic dermatitis. AB - Atopic dermatitis (AD), also known as eczema, is one of the most common chronic skin conditions worldwide, affecting up to 16% of children and 10% of adults. It is incurable and has significant psychosocial and economic impacts on the affected individuals. AD etiology has been linked to deficiencies in the skin barrier protein, filaggrin. In mammalian skin, l-histidine is rapidly incorporated into filaggrin. Subsequent filaggrin proteolysis releases l histidine as an important natural moisturizing factor (NMF). In vitro studies were conducted to investigate the influence of l-histidine on filaggrin processing and barrier function in human skin-equivalent models. Our further aim was to examine the effects of daily oral l-histidine supplementation on disease severity in adult AD patients. We conducted a randomized, double-blind, placebo controlled, crossover, nutritional supplementation pilot study to explore the effects of oral l-histidine in adult AD patients (n=24). In vitro studies demonstrated that l-histidine significantly increased both filaggrin formation and skin barrier function (P<0.01, respectively). Data from the clinical study indicated that once daily oral l-histidine significantly reduced (P<0.003) AD disease severity by 34% (physician assessment using the SCORingAD tool) and 39% (patient self-assessment using the Patient Oriented Eczema Measure tool) after 4 weeks of treatment. No improvement was noted with the placebo (P>0.32). The clinical effect of oral l-histidine in AD was similar to that of mid-potency topical corticosteroids and combined with its safety profile suggests that it may be a safe, nonsteroidal approach suitable for long-term use in skin conditions that are associated with filaggrin deficits such as AD. PMID- 29042807 TI - Association between interleukin-6/6R gene polymorphisms and coronary artery disease in Russian population: influence of interleukin-6/6R gene polymorphisms on inflammatory markers. AB - This study determined the genotype effects of interleukin (IL)-6/IL-6R single nucleotide polymorphisms (SNPs) on circulating levels of different cytokines in healthy and coronary artery disease (CAD) patients with different allele frequencies. In the control patients, rs1800795 showed significant differences in IL-18 concentrations between CC and CG and CC and GG genotypes (P=0.003 and 0.004, respectively). Furthermore, circulatory IL-1beta was significantly different between GC and GG genotypes from the same SNP (P=0.038). In the diseased patients, significance was determined only for IL-2 (P=0.021) between the C and G homozygote allele carriers of rs1800795. The diseased GC and GG genotype carriers were statistically different for IL-2 (P=0.049) from the rs1800796 and for IL-4 (P=0.049) from the rs2228044. IL-4 was also statistically significant between the GC and CC genotypes from the rs2228043 of the IL-6R gene (P=0.025). The last combination of genotypes in the same gene for the same SNP was statistically significant for IL-10 (P=0.036). According to the logistic regression, only gender (odds ratio [OR] =2.43) and triglycerides (OR =1.98) could be taken as determinants of CAD, while examined SNPs genotypes were not identified as risk factors for CAD. In general, the IL-6 polymorphism genotypes were mainly associated with inflammatory cytokines, while the IL-6R polymorphism genotypes were associated with anti-inflammatory cytokines. PMID- 29042808 TI - First-visit patients without a referral to the Department of Internal Medicine at a medium-sized acute care hospital in Japan: an observational study. AB - PURPOSE: We sought to profile first-time patients without a referral who sought medical care at the Department of Internal Medicine at a medium-sized acute care hospital in Japan. We anticipated that the analysis would highlight the demand for medical care needs from acute care hospitals and help confirm one of the problems associated with primary care in Japan. PATIENTS AND METHODS: The study population comprised 765 patients who sought outpatient consultation without a referral at "the Department of General Internal Medicine" at the Ikeda City Hospital on Fridays over 4 years. Data on the following variables were collected: age, sex, examination date, reason for encounter (RFE), diagnosis, as well as history of consultation with or without antibiotic treatment at another medical institution for the same RFE. We used the International Classicication of Primary Care, Revised Second edition (ICPC-2-R) codes for RFEs and diagnoses. RESULTS: The main RFE fields were digestive (ICPC-2-R Chapter D), general and unspecified (A), and respiratory (R). The main diagnosis fields were digestive (D), respiratory (R), general and unspecified (A), and musculoskeletal (L). In total, 27.6% of patients had sought consultation at another medical institution for the same RFE. Of these, 64.7% of patients for whom the RFE was cough (ICPC-2-R code, R05), and 72.0% for whom the RFE was fever (A03) were prescribed antibiotics. In total, 62.4% of patients underwent emergency investigations and waited for the results; 4.3% were hospitalized on the same day; and 60.5% were medicated at the initial examination. In 11.5%, the main underlying problem appeared to be psychosomatic. CONCLUSION: We used the ICPC-2-R to analyze the state of first visit patients without a referral visiting the Department of Internal Medicine at a medium-sized acute care hospital in Japan. Common RFEs were abdominal pain, cough, and fever. A tendency toward overprescription of antibiotics was observed among primary care physicians. PMID- 29042809 TI - Implementation of GINA guidelines in asthma management by primary care physicians in Vietnam. AB - BACKGROUND: Asthma control is suboptimal in Vietnam. Lack of knowledge of primary care physicians (PCPs) for asthma management may potentially be one of the causes. PURPOSE: The aim of this study was to assess the knowledge and practice of PCPs' asthma management based on the Global Initiative for Asthma (GINA) guidelines (2015 update). METHODS: A cross-sectional study with convenience sampling was conducted among PCPs in an urban and rural area of Vietnam using questionnaires related to asthma patients daily practice: use of spirometry and the asthma control test (ACT), prescription of asthma medications, and frequency of consultations. Five asthma case scenarios were also used to ask participants to classify GINA-defined levels of asthma control and to choose the initial or adjusted treatment options based on the current situation. All scenarios are common in Vietnam, ie, three cases for adults, one case for children, and one case for pregnant women. RESULTS: Of the 327 completed questionnaires, 201 questionnaires could be analyzed. Most PCPs consulted their asthma patients on a weekly to monthly basis. Approximately 50% used spirometry for asthma care and only 25% used ACT. For asthma treatment, oral short-acting beta agonists and oral steroids were still commonly used and long-acting beta agonists alone were prescribed by 70%. Regarding GINA-defined levels of asthma control, 24% of the responders had >=50% of correct answers, 21% had no correct answers, 2% had all five correct answers, and 20-42% had a correct answer for each of the five questions. Regarding treatment choice, 22% had >=50% of correct answers, 14% had a wrong answer for all nine questions, and no respondent had a correct answer for >=8 questions. CONCLUSION: The percentage of PCPs in Vietnam who had implemented GINA 2015 was low. Some drugs with a high risk of side effects were still being prescribed. There is a need to improve both knowledge and daily practice. Additional studies should determine why these guidelines are not largely adopted by PCPs in Vietnam. PMID- 29042810 TI - Changes in pain and concurrent pain medication use following compounded topical analgesic treatment for chronic pain: 3- and 6-month follow-up results from the prospective, observational Optimizing Patient Experience and Response to Topical Analgesics study. AB - BACKGROUND: Opioids and other controlled substances prescribed for chronic pain are associated with abuse, addiction, and death, prompting national initiatives to identify safe and effective pain management strategies including topical analgesics. METHODS: This prospective, observational study evaluated changes from baseline in overall mean severity and interference scores on the Brief Pain Inventory scale and the use of concurrent pain medications at 3- and 6-month follow-up assessments in chronic pain patients treated with topical analgesics. Changes in pain severity and interference and medication usage were compared between treated patients and unmatched and matched controls. RESULTS: The unmatched intervention group (unmatched-IG) included 631 patients who completed baseline and 3-month follow-up surveys (3-month unmatched-IG) and 158 who completed baseline and 6-month follow-up assessments (6-month unmatched-IG). Baseline and 3-month follow-up data were provided by 76 unmatched controls and 76 matched controls (3-month unmatched-CG and matched-CG), and 51 unmatched and 36 matched patients completed baseline and 6-month follow-up surveys (6-month unmatched-CG and matched-CG). Baseline demographic characteristics and mean pain severity and interference scores were similar between groups. There were statistically significant decreases from baseline in mean pain severity and interference scores within the 3- and 6-month unmatched-IG (all P<0.001). Significantly greater decreases in the mean change from baseline in pain severity and interference scores were evident for the 3- and 6-month unmatched-IG versus unmatched-CG (all P<0.001), with similar results when the 3- and 6-month matched IG and matched-CG were compared. A higher percentage of the 3- and 6-month unmatched-IG and matched-IG de-escalated use of concurrent pain medications (all P<0.001), while significantly higher percentages of the unmatched-CG and matched CG escalated medication use. Side effects were reported by <1% of the unmatched IG. CONCLUSION: Topical analgesics appear to be effective and safe for the treatment of chronic pain, with randomized controlled trials needed to confirm these findings. PMID- 29042811 TI - Optical inactivation of the anterior cingulate cortex modulate descending pain pathway in a rat model of trigeminal neuropathic pain created via chronic constriction injury of the infraorbital nerve. AB - PURPOSE: The anterior cingulate cortex (ACC) plays a critical role in the initiation, development, and maintenance of neuropathic pain. Recently, the effects of optical stimulation on pain have been investigated, but the therapeutic effects of optical stimulation on trigeminal neuralgia (TN) have not been clearly shown. Here, we investigated the effects of optical inhibition of the ACC on TN lesions to determine whether the alleviation of pain affects behavior performance and thalamic neuron signaling. MATERIALS AND METHODS: TN lesions were established in animals by generating a chronic constriction injury of the infraorbital nerve, and the animals received injections of AAV-hSyn eNpHR3.0-EYFP or a vehicle (phosphate-buffered saline [PBS]) in the ACC. The optical fiber was fixed into the ipsilateral ACC after the injection of adeno associated virus plasmids or vehicle. Behavioral testing, consisting of responses to an air puff and cold allodynia, was performed, and thalamic neuronal activity was monitored following optical stimulation in vivo. Optical stimulation experiments were executed in three steps: during pre-light-off, stimulation-light on, and post-light-off states. The role of the optical modulation of the ACC in response to pain was shown using a combination of optical stimulation and electrophysiological recordings in vivo. RESULTS: Mechanical thresholds and facial cold allodynia scores were significantly improved in the TN lesion group during optical stimulation compared to those in the control group. Thalamic neuronal activity, consisting of the firing rate (spikes/s) and burst rate (bursts/s), was also decreased during optical stimulation. CONCLUSION: Reciprocal optical inhibition of the ACC can alleviate pain-associated behavior and decrease abnormal thalamic sensory neuron activity in the trigeminal neuropathic rat model. The descending pain pathway can modulate thalamic neurons from the ACC following optical stimulation. PMID- 29042812 TI - Age differences in salivary markers of inflammation in response to experimental pain: does venipuncture matter? AB - An important consideration in mechanistic research using biomarkers should include the use of saliva as an alternative to blood. The use of saliva would allow the study of susceptible populations such as older adults where venipuncture may not be feasible. Although saliva has been most commonly used to measure cortisol and tumor necrosis factor-alpha (TNFalpha), there is limited evidence that other cytokines found in saliva significantly change in response to laboratory-induced pain. Therefore, the aim of the current preliminary study was to characterize the time course, duration and magnitude of changes of commonly measured pro- (interleukin [IL]-6, IL-8) and anti-inflammatory (IL-10, IL-4) cytokines in saliva samples and to test for age-related differences in separate experimental painful and non-painful control sessions. In addition, we also tested whether venipuncture results in significant cytokine alterations similar to a painful stimulus in a non-painful, non-venipuncture control session. All cytokines were significantly induced by the cold pressor task compared to a warm control session (p < 0.001). Specifically, healthy older adults experienced greater salivary changes in all cytokines during the cold pressor session compared to younger adults in the non-painful sessions (p < 0.001). There were no significant differences between the venipuncture and non-venipuncture sessions across all cytokines (p > 0.05). Our findings support the use of saliva as a substitute for blood in both young and older healthy individuals to measure changes after experimental pain stimulation. In addition, venipuncture alone is not sufficient to induce IL-6, IL-8, IL-10 and IL-4. Future studies in the community are urgently needed to validate and further move translational mechanistic pain research to those populations most underrepresented in clinical research. PMID- 29042814 TI - Attenuated serum adiponectin levels are associated with disease severity in patients with non-traumatic osteonecrosis of the femoral head. AB - OBJECTIVE: Decreased adiponectin (APN) levels have been detected in patients with osteonecrosis of the femoral head (ONFH). The scope of this study was aimed to explore the relationship between serum APN levels and disease severity in nontraumatic ONFH patients. PATIENTS AND METHODS: Ninety two nontraumatic ONFH patients and 92 healthy controls were enrolled for this study following the estimation of sample size. Serum APN concentrations were examined by enzyme linked immunosorbent assay (ELISA). The radiographic progression was determined by Ficat grading system. The clinical severity was evaluated by visual analog scale (VAS), Harris hip scores (HSSs) and Western Ontario and McMaster University Osteoarthritis Index (WOMAC) scores. RESULTS: Serum APN levels were significantly lower in ONFH patients than in healthy controls. Serum APN levels were significantly lower in patients with Ficat stage 4 ONFH than in patients with stage 3 ONFH, and APN levels in patients with stage 3 were lower compared with stage 2. Serum APN levels were negatively correlated with the Ficat grading system. In addition, serum APN levels were also negatively related to VAS and WOMAC scores and positively associated with HSSs. CONCLUSION: Decreased serum APN levels may reflect disease severity of nontraumatic ONFH. PMID- 29042813 TI - Rehabilitation management of low back pain - it's time to pull it all together! AB - In the past, rehabilitation research initiatives for low back pain (LBP) have targeted outcome enhancement through personalized treatment approaches, namely through classification systems (CS). Although the use of CS has enhanced outcomes, common management practices have not changed, the prevalence of LBP is still high, and only selected patients meet the CS profile, namely those with a nociceptive context. Similarly, although practice guidelines propose some level of organization and occasionally a timeline of care provision, each mainly provides best practice for isolated treatment approaches. Moreover, there is no theoretical framework that has been proposed that guides the rehabilitation management process of mechanical LBP. In this commentary, we propose a model constituted of five domains (nociceptive drivers, nervous system dysfunction drivers, comorbidities drivers, cognitive-emotional drivers, and contextual drivers) grounded as mechanisms driving pain and/or disability in LBP. Each domain is linked to the International Classification of Functioning, Disability and Health, where once a patient is deemed suitable for rehabilitation, the clinician assesses elements of each domain in order to identify where the relative treatment efforts should be focused. This theoretical model is designed to provide a more comprehensive management overview, by appreciating the relative contribution of each domain driving pain and disability. Considering that the multiple domains driving pain and disability, and their interaction, requires a model that is comprehensive enough to identify and address each related issue, we consider that the proposed model has several positive implications for rehabilitation of this painful and highly prevalent musculoskeletal disorder. PMID- 29042815 TI - The role of miR-190a-5p contributes to diabetic neuropathic pain via targeting SLC17A6. AB - INTRODUCTION: MicroRNAs play a key role in neuropathic pain. In a previous study, miR-190a-5p was significantly downregulated in diabetic neuropathic pain (DNP). However, the role and pathological mechanism of miR-190a-5p in DNP still remain unclear. MATERIALS AND METHODS: DNP model was established. The paw withdrawal thresholds were measured to assess the mechanical nociceptive response. Dual luciferase reporter assay was used to confirm the target gene of microRNA. The expressions of microRNA, gene, and protein were detected by the quantitative real time polymerase chain reaction or Western blot. The levels of IL-1beta and IL-6 were detected with the enzyme-linked immuno sorbent assay. RESULTS: Compared with the control sample, the expression of miR-190a-5p was decreased and SLC17A6 was increased in the spinal tissue from those developing DNP. The bioinformatics and luciferase reporter assay demonstrated that SLC17A6 is a direct target of miR 190a-5p. Up-regulation of miR-190a-5p and inhibition of SLC17A6 could significantly weaken the painful behavior and reduce IL-1beta and IL-6 level in DNP. CONCLUSION: miR-190a-5p is involved in DNP via targeting SLC17A6, and miR 190a-5p and SLC17A6 may be the therapeutic targets of this disease. PMID- 29042816 TI - Incidence and predictive factors of spinal cord stimulation treatment after lumbar spine surgery. AB - INTRODUCTION: Spinal cord stimulation (SCS) is recommended for the treatment of postsurgical chronic back and leg pain refractory to other treatments. We wanted to estimate the incidence and predictive factors of SCS treatment in our lumbar surgery cohort. PATIENTS AND METHODS: Three questionnaires (a self-made questionnaire, the Oswestry Low Back Pain Disability Questionnaire, and the Beck Depression Inventory) were sent to patients aged 18-65 years with no contraindications for the use of SCS, and who had undergone non-traumatic lumbar spine surgery in the Oulu University Hospital between June 2005 and May 2008. Patients who had a daily pain intensity of >=5/10 with predominant radicular component were interviewed by telephone. RESULTS: After exclusions, 814 patients remained in this cohort. Of those, 21 patients had received SCS by the end of June 2015. Fifteen (71%) of these received benefit and continued with the treatment. Complications were rare. The number of patients who replied to the postal survey were 537 (66%). Eleven of them had undergone SCS treatment after their reply. Features predicting SCS implantation were daily or continuous pain, higher intensities of pain with predominant radicular pain, more severe pain related functional disability, a higher prevalence of depressive symptoms, and reduced benefit from pain medication. The mean waiting time was 65 months (26-93 months). One hundred patients were interviewed by telephone. Fourteen seemed to be potential SCS candidates. From the eleven patients who underwent SCS after responding to the survey, two were classified as potential candidates in the phone interview, while nine were other patients. Twelve patients are still waiting for treatment to commence. CONCLUSION: In our region, the SCS treatment is used only for very serious pain conditions. Waiting time is too long and it may be the reason why this treatment option is not offered to all candidates. PMID- 29042817 TI - Accuracy of the hypospadias diagnoses and surgical treatment registrations in the Danish National Patient Register. AB - PURPOSE: The Danish National Health registers provide a valuable data source that offers unique opportunities for observational research, including studies on the congenital anomaly hypospadias. The accuracy of the diagnosis and surgical treatment registration of hypospadias in the Danish National Patient Register (DNPR) remains unknown. PATIENTS AND METHODS: We randomly sampled 500 patients diagnosed with hypospadias in the DNPR from January 1, 1995 to December 31, 2012. Among these, 384 patients were also registered with surgical treatment for hypospadias. Medical records were collected and reviewed independently by two investigators. Any classification disagreements were resolved by consensus. Using the medical records as the gold standard, we estimated positive predictive values (PPVs) with 95% confidence intervals (CIs) for the hypospadias diagnoses and surgical treatment registrations overall, as well as for the clinical subtypes. RESULTS: We were able to retrieve medical records for 463 (92.6%) patients with hypospadias diagnoses and for 329 (85.7%) patients registered with surgical treatment. Presence of hypospadias was confirmed in 450 of 463 patients, yielding an overall PPV (95% CI) of 97.6% (95.8%-98.7%). For subtypes of hypospadias, the PPVs ranged between 37.5% and 72.7%. For surgical treatment of hypospadias, the overall PPV was 99.7% (97.9%-99.9%). CONCLUSION: The validity of the registration of hypospadias diagnoses as well as surgical treatment for hypospadias in the DNPR is overall very high. For the specific subtypes of hypospadias diagnoses codes and the specific surgical treatment codes, the PPVs are lower and cautious use is warranted. However, the DNPR remains a valuable tool for future observational research on hypospadias. PMID- 29042818 TI - Cycle control with an extended-regimen oral contraceptive combining levonorgestrel and ethinyl estradiol that includes continuous low-dose ethinyl estradiol instead of the traditional hormone-free interval. AB - PURPOSE: To evaluate scheduled and unscheduled bleeding and spotting over 1 year of treatment with 91-day extended-regimen combined oral contraception (COC) providing continuous low-dose ethinyl estradiol (EE) in place of the traditional 7-day hormone-free interval (HFI). PATIENTS AND METHODS: This post hoc analysis of a multicenter, open-label, 1-year, Phase 3 study of extended-regimen COC with 30 ug EE/150 ug levonorgestrel (LNG) for 84 days and EE 10 ug for 7 days included 799 sexually active, adult women who completed at least one 91-day cycle of therapy. Subjects recorded bleeding and spotting episodes daily using electronic diaries. Logistic regression analyses are reported as ORs with 95% CIs. RESULTS: There was a 10% increase (OR =1.102; 95% CI: 1.006-1.206) in the likelihood of reporting no scheduled bleeding for each additional 91-day cycle completed. From the third 91-day cycle, more than one fifth of women reported no scheduled bleeding (third cycle =23% [121/533]; fourth cycle =22% [97/446]). Among women who reported no scheduled bleeding at Cycle 1 (136/758 [18%]), >=45% showed sustained lack of scheduled bleeding in later cycles. There were increases of 53% (OR =1.531; 95% CI: 1.393-1.683) and 31% (OR =1.307; 95% CI: 1.205-1.418) in the likelihood of reporting 0 to <=6 days vs >6 days of unscheduled bleeding and spotting, respectively, for each additional 91-day cycle. By Cycle 2, more than 80% of women reported no unscheduled bleeding or <=6 days of unscheduled bleeding during each 91-day cycle. CONCLUSION: Improved cycle control with decreased bleeding over time was shown during extended-regimen COC with 30 ug EE/150 ug LNG for 84 days and continuous low-dose EE instead of the traditional 7-day HFI. Women considering this regimen should be informed that those who complete at least one 91-day COC cycle will likely experience less bleeding/spotting in future cycles. PMID- 29042819 TI - Distance from health facility and mothers' perception of quality related to skilled delivery service utilization in northern Ethiopia. AB - BACKGROUND: Poor maternal health service utilization is one of the contributing factors to a high level of maternal and newborn mortality in Ethiopia. The factors associated with utilization of services are believed to differ from one context to another. We assessed the factors associated with skilled delivery service utilization in rural northern Ethiopia. SUBJECTS AND METHODS: A community based survey was conducted among mothers who gave birth in the 12 months preceding the study period, from January to February 2015, in the Tigray region of Ethiopia. Multistage sampling technique was used to select mothers from the identified clusters. Households within a 10 km radius of the health facility were taken as a cluster for a community survey. Data were collected using face-to-face interview at the household level. We compared the mothers who reported giving birth to the index child in a health facility and those who reported delivering at home, in order to identify the predictors of skilled delivery utilization. Multivariable logistic regression model was used to determine the predictors of skilled delivery service utilization. The results are presented with odds ratio (OR) and 95% confidence interval (CI). RESULTS: A total of 1,796 mothers participated in the study, with a 100% response rate. Distance to health facilities (adjusted odds ratio [AOR] =0.53 [95% CI: 0.39, 0.71]), perception of mothers to the availability of adequate equipment in the delivery service in their catchment area (AOR =1.5 [95% CI: 1.11, 2.13]), experiencing any complication during childbirth, using antenatal care, lower birth order and having an educated partner were the significant predictors of skilled delivery service utilization. CONCLUSION: Implementing community-based intervention programs that will address the physical accessibility of delivery services, such as the ambulance service, road issues and waiting rooms, and improving quality maternity service will likely reduce the current problem. PMID- 29042820 TI - Necrobiotic xanthogranuloma scleritis in a case of granulomatosis with polyangiitis (Wegener's granulomatosis). AB - The purpose of this study was to describe a case of necrobiotic xanthogranuloma scleritis in a 53-year-old male with unilateral progressive visual loss, scleritis, prolonged fever, and multiple mononeuropathy. Scleral biopsy showed necrosis with small abscess, and the pathological tissues revealed submucosal infiltration of mononucleated foamy histiocytes (xanthoma cells), hemosiderin laden macrophages, neutrophils, lymphocytes, plasma cells, and erythrocytes without Touton giant cells or cholesterol clefts. Serum protein electrophoresis showed polyclonal gammopathy. All infectious investigations were negative. Afterward, this patient was diagnosed with granulomatosis with polyangiitis based on granuloma found in scleral tissue, vasculitis seen in sural nerve biopsy and positive serologies (C-ANCA and anti-PR3 antibody). He was treated with high-dose corticosteroid and later with intravenous cyclophosphamide monthly. He responded well to treatment, both eye and systemic conditions. Necrobiotic xanthogranuloma scleritis could be an early presentation of granulomatosis with polyangiitis. PMID- 29042822 TI - Antipsychotic prescription to identify delirium: results from two cohorts. AB - OBJECTIVES: Detection of delirium in hospitalized patients remains challenging. The objective was to determine if the prescription of antipsychotic medications was associated with delirium. PATIENTS AND METHODS: Two patient cohorts were utilized from a tertiary Veterans Affairs hospital: a palliative care retrospective cohort and a prospective medical cohort. Patients prescribed outpatient antipsychotics were excluded. Retrospectively, delirium was identified using a validated medical record-review instrument. Prospectively, a clinical expert assessed patients for delirium daily using a standardized interview. Acute antipsychotic medication administration was recorded from the electronic medical record. RESULTS: In the retrospective cohort (n=217), delirium was found in 31% (n=67) and antipsychotic use in 18% (n=40) of patients. Acute antipsychotic use indicated delirium with 54% sensitivity and 97% specificity. In the prospective cohort (n=100), delirium developed in 23% (n=23) and antipsychotics were used in 5% (n=5) of patients. The sensitivity and specificity of acute antipsychotic use was 22% and 100%, respectively. CONCLUSION: Hospitalized patients who are acutely prescribed antipsychotics are likely to have delirium, but not all patients with delirium will be identified with this method. In health systems, utilization of the prescription of acute antipsychotics can be an efficient and specific method to identify delirious patients for targeted intervention. PMID- 29042821 TI - Practical recommendations for the use of therapeutic drug monitoring of biopharmaceuticals in inflammatory diseases. AB - Biopharmaceuticals directed against tumor necrosis factor-alpha, integrins, interleukins, interferons and their receptors have become key agents for the management of inflammatory diseases in the fields of gastroenterology, rheumatology, dermatology and neurology. However, response to these treatments is far from optimal. Therapeutic failure has been attributed in part to inadequate serum concentrations of the drug and the formation of antidrug antibodies (ADA). Therapeutic drug monitoring (TDM) based on drug concentrations and ADA represents a pharmacologically sound tool for guiding dosage adjustments to optimize exposure. Although becoming standard practice in tertiary care centers, the widespread accessibility and recognition of TDM is hindered by several hurdles, including a lack of education of health care providers on TDM. In this paper, the Monitoring of monoclonal Antibodies Group in Europe (MAGE) provides an introduction on the fundamental principles of the concept of TDM, aiming to educate clinicians and assist them in the process of implementing TDM of anti inflammatory biopharmaceuticals. PMID- 29042823 TI - Digital health technology for use in patients with serious mental illness: a systematic review of the literature. AB - BACKGROUND: As the capabilities and reach of technology have expanded, there is an accompanying proliferation of digital technologies developed for use in the care of patients with mental illness. The objective of this review was to systematically search published literature to identify currently available health technologies and their intended uses for patients with serious mental illness. MATERIALS AND METHODS: The Medline, Embase, and BIOSIS Previews electronic databases were searched to identify peer-reviewed English language articles that reported the use of digital, mobile, and other advanced technology in patients with schizophrenia/schizoaffective disorder, bipolar disorder, and major depressive disorder. Eligible studies were systematically reviewed based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. RESULTS: Eighteen studies that met the inclusion criteria were identified. Digital health technologies (DHTs) assessed in the selected studies included mobile applications (apps), digital medicine, digital personal health records, and an electronic pill container. Smartphone apps accounted for the largest share of DHTs. The intended uses of DHTs could be broadly classified as monitoring to gain a better understanding of illness, clinical assessment, and intervention. Overall, studies indicated high usability/feasibility and efficacy/effectiveness, with several reporting validity against established clinical scales. Users were generally engaged with the DHT, and mobile assessments were deemed helpful in monitoring disease symptoms. CONCLUSION: Rapidly proliferating digital technologies seem to be feasible for short-term use in patients with serious mental illness; nevertheless, long-term effectiveness data from naturalistic studies will help demonstrate their usefulness and facilitate their adoption and integration into the mental health-care system. PMID- 29042824 TI - Family profiles in eating disorders: family functioning and psychopathology. AB - Research has studied family functioning in families of patients suffering from eating disorders (EDs), particularly investigating the associations between mothers' and daughters' psychopathological symptoms, but limited studies have examined whether there are specific maladaptive psychological profiles characterizing the family as a whole when it includes adolescents with anorexia nervosa (AN), bulimia nervosa (BN), and binge eating disorder (BED). Through the collaboration of a network of public and private consultants, we recruited n=181 adolescents diagnosed for EDs (n=61 with AN, n=60 with BN, and n=60 with BEDs) and their parents. Mothers, fathers, and youths were assessed through a self report measure evaluating family functioning, and adolescents completed a self report questionnaire assessing psycho-pathological symptoms. Results showed specific family functioning and psychopathological profiles based on adolescents' diagnosis. Regression analyses also showed that family functioning characterized by rigidity predicted higher psychopathological symptoms. Our study underlines the importance of involving all members of the family in assessment and intervention programs when adolescent offspring suffer from EDs. PMID- 29042826 TI - Clinical reasoning and knowledge management in final year medical students: the role of Student-led Grand Rounds. AB - OBJECTIVES: The development of clinical reasoning and decision-making skills is often limited in medical school curricula. In reality, medical graduates acquire these skills during their first few years of residency. For many, this can be stressful as they may be working under limited supervision as a part of their rotations. METHODS: Student-led Grand Rounds was developed to transfer both explicit and tacit knowledge to final year medical students. This pilot project was to apply the principles of knowledge management to allow students to be exposed to the reasoning and decision making of common clinical presentations. Student feedback through questionnaires was collated at the end of the program. RESULTS: Based on feedback and focus groups, modifications were made to produce a stable program in subsequent clinical rotations. Formal feedback was collated from all the 76 students who participated in the first year. This represented 100% of the cohort for this clinical school for that year. There was a 100% response rate as the feedback forms were given and collected at the end of the last session per block. The student responses were both in ratings defined in a feedback forms and in written comments. A total of 74 of the 76 students rated the program highly. They enjoyed the nonthreatening interactions. The remaining two students preferred more didactic teaching. CONCLUSION: This initiative allows an efficient transfer and utilization of knowledge. This could maximize the acquisition of practical knowledge by medical students as they finish their course in the transition to graduate medical practice. PMID- 29042825 TI - Antithrombotics in trauma: management strategies in the older patients. AB - The ageing population has resulted in a change in the demographics of trauma, and older adult trauma now accounts for a growing number of trauma admissions. The management of older adult trauma can be particularly challenging, and exhibits differences to that of the younger age groups affected by trauma. Frailty syndromes are closely related with falls, which are the leading cause of major trauma in older adults. Comorbid disease and antithrombotic use are more common in the older population. Physiological changes that occur with ageing can alter the expected clinical presentation of older persons after injury and their susceptibility to injury. Following major trauma, definitive control of hemorrhage remains essential for improving outcomes. In the initial assessment of an injured patient, it is important to consider whether the patient is taking anticoagulants or antiplatelets and if measures to promote hemostasis such as reversal are indicated. After hemostasis is achieved and bleeding has stopped, longer-term decisions to recommence antithrombotic agents can be challenging, especially in older people. In this review, we discuss one aspect of management for the older trauma patients in greater detail, that is, acute and longer-term management of antithrombotic therapy. As we consider the health needs of an ageing population, rise in elderly trauma and increasing use of antithrombotic therapy, the need for research in this area becomes more pressing to establish best practice and evidence-based care. PMID- 29042827 TI - Use of a problem-based learning teaching model for undergraduate medical and nursing education: a systematic review and meta-analysis. AB - OBJECTIVES: The aim of this systematic review and meta-analysis was to evaluate the problem-based learning (PBL) method as an alternative to conventional educational methods in Iranian undergraduate medical courses. MATERIALS AND METHODS: We systematically searched international datasets banks, including PubMed, Scopus, and Embase, and internal resources of banks, including MagirIran, IranMedex, IranDoc, and Scientific Information Database (SID), using appropriate search terms, such as "PBL", "problem-based learning", "based on problems", "active learning", and" learner centered", to identify PBL studies, and these were combined with other key terms such as "medical", "undergraduate", "Iranian", "Islamic Republic of Iran", "I.R. of Iran", and "Iran". The search included the period from 1980 to 2016 with no language limits. RESULTS: Overall, a total of 1,057 relevant studies were initially found, of which 21 studies were included in the systematic review and meta-analysis. Of the 21 studies, 12 (57.14%) had a high methodological quality. Considering the pooled effect size data, there was a significant difference in the scores (standardized mean difference [SMD]=0.80, 95% CI [0.52, 1.08], P<0.000) in favor of PBL, compared with the lecture-based method. Subgroup analysis revealed that using PBL alone is more favorable compared to using a mixed model with other learning methods such as lecture-based learning (LBL). CONCLUSION: The results of this systematic review showed that using PBL may have a positive effect on the academic achievement of undergraduate medical courses. The results suggest that teachers and medical education decision makers give more attention on using this method for effective and proper training. PMID- 29042828 TI - Predictors of sedentary status in overweight and obese patients with multiple chronic conditions: a cohort study. AB - PURPOSE: Walking may improve health in obese patients with multimorbidity. We aimed to identify predictors associated with achieving <5000 steps per day after 4 months. PATIENTS AND METHODS: We conducted a cohort study of 125 adult patients with a body mass index >25 kg/m2 and >=7 comorbidities. We evaluated potential predictors for <5000 steps per day using logistic regression and adjusting for age >65 years and sex. RESULTS: The mean (range) age was 63.6 (20.3-89.8) years. Daily step counts <5000 at baseline showed the highest risk of <5000 daily steps at 4 months (odds ratio [OR] 31.82, 95% confidence interval [CI]: 12.14-95.50). Other significant characteristics were physical quality of life (OR 6.21, 95% CI: 2.32-18.54), gait speed <1 m/s (OR 2.57, 95% CI: 1.18-5.71), age >=65 years (OR 2.21, 95% CI: 1.05-4.77), waist circumference >=102 cm (OR 2.48, 95% CI: 1.05 6.06), and body mass index >=30 kg/m2 (OR 2.69, 95% CI: 1.20-6.26). CONCLUSION: New models to increase walking may be required for higher-risk patients. PMID- 29042829 TI - Kinetics of N-Glycan Release from Human Immunoglobulin G (IgG) by PNGase F: All Glycans Are Not Created Equal. AB - The biologic activity of IgG molecules is modulated by its crystallizable fragment N-glycosylation, and thus, the analysis of IgG glycosylation is critical. A standard approach to analyze glycosylation of IgGs involves the release of the N-glycans by the enzyme peptide N-glycosidase F, which cleaves the linkage between the asparagine residue and innermost N-acetylglucosamine (GlcNAc) of all N-glycans except those containing a 3-linked fucose attached to the reducing terminal GlcNAc residue. The importance of obtaining complete glycan release for accurate quantitation led us to investigate the kinetics of this de glycosylation reaction for IgG glycopeptides and to determine the effect of glycan structure and amino acid sequence on the rate of glycan release from glycopeptides of IgGs. This study revealed that the slight differences in amino acid sequences did not lead to a statistically different deglycosylation rate. However, statistically significant differences in the deglycosylation rate constants were observed between glycopeptides differing only in glycan structure (i.e., nonfucosylated, fucosylated, bisecting-GlcNAc, sialylated, etc.). For example, a single sialic acid residue was found to decrease the rate by a factor of 3. Similar reductions in rate were associated with the presence of a bisecting GlcNAc. We predict the differences in release kinetics can lead to significant quantitative variations of the glycosylation study of IgGs. PMID- 29042830 TI - Evaluation of the effects of two doses of alpha glycerylphosphorylcholine on physical and psychomotor performance. AB - BACKGROUND: Recent studies have suggested that alpha glycerylphosphorylcholine (A GPC) may be an effective ergogenic aid. The present study was designed to assess the efficacy of two doses of A-GPC in comparison to placebo and caffeine for increasing countermovement jump performance, isometric strength, and psychomotor function. METHODS: Forty-eight healthy, college aged males volunteered for the present study and underwent baseline assessment of countermovement jump (CMJ), isometric mid thigh pull (IMTP), upper body isometric strength test (UBIST), and psychomotor vigilance (PVT). Following this assessment participants were randomly assigned to groups consisting of 500 mg A-GPC, 250 mg A-GPC, 200 mg Caffeine or Placebo taken daily. Blood samples were collected 1 h and 2 h post initial dose to quantify serum free choline and thyroid stimulating hormone then subjects returned after 7 days of supplementation to repeat CMJ, IMTP, UBIST and PVT. RESULTS: No differences were noted between groups for IMTP, UBIST or PVT performance. Serum free choline was found to be elevated in the two A-GPC groups as compared to placebo (132% and 59% respectively). Serum TSH was found to be significantly depressed in the 500 mg A-GPC group compared to other treatments (p < 0.04). Group differences were noted for maximum velocity and maximum mechanical power on the CMJ (p < 0.05) with the 250 mg A-GPC group demonstrating the greatest improvements in result. CONCLUSIONS: Based upon this evidence, and previous evidence regarding A-GPC, it should be considered as an emerging ergogenic supplement. PMID- 29042831 TI - The Impact of Antithrombin III Use in Achieving Anticoagulant Goals in Pediatric Patients. AB - OBJECTIVES: To determine the percentage of patients with >10% reduction in heparin infusion rate within 48 hours of antithrombin III (ATIII) administration. Secondary objectives include the achievement of therapeutic anticoagulation and determining the days of subtherapeutic infusion prior to supplementation. METHODS: Retrospective chart review of 12 patients younger than 18 years of age who received ATIII concentrate supplementation while on continuous heparin infusion. Specific indications for heparin infusion therapy included extracorporeal membrane oxygenation (ECMO), treatment of thrombus, and post implantation of ventricular assist device(s). RESULTS: From time of heparin initiation to ATIII supplementation, patients spent a mean 4.9 +/- 2.6 days of subtherapeutic infusion and required uptitration from a mean of 15.3 +/- 4.4 units/kg/hr to a mean rate of 40.7 +/- 9.5 units/kg/hr. 58.3% of the patients (n = 7) had a >=10% reduction from the baseline heparin infusion rate within 48 hours of ATIII administration. Those patients considered responders (>=10% reduction from baseline rate) had a slightly higher mean baseline antithrombin level (76.3% +/- 22.0% vs. 58.6% +/- 2.7% in non-responders, p = 0.1) and were administered comparable doses of ATIII. ATIII supplementation did appear to increase the time of therapeutic anticoagulation within the 48 hours. CONCLUSIONS: Administration of ATIII is associated with >10% decrease in heparin requirements in more than half of the patients identified. In those patients deemed non-responders, there was a trend towards lower baseline antithrombin serum levels. Further studies are warranted to determine if the lack of response in some patients is due to inadequate dosing of ATIII or any patient-related factors. PMID- 29042832 TI - Evaluation of the Efficacy of a Onetime Injectable Dexamethasone Administered Orally in the Pediatric Emergency Department for Asthma Exacerbation. AB - OBJECTIVE: This study assessed the efficacy of injectable dexamethasone administered orally in pediatric patients who presented to the emergency department with asthma exacerbation. METHODS: This was a retrospective study of patients 0 to 18 years of age who presented to and who were directly discharged from the emergency department at Moses H. Cone Memorial Hospital between September 1, 2012, and September 30, 2015, for the diagnosis of asthma or asthma exacerbation. Patients had to receive a onetime dose of injectable dexamethasone orally prior to discharge. Patients were followed for a 30-day period to identify the number of asthma relapses. RESULTS: Ninety-nine patients were included in this study. The average weight-based dose +/- SD of dexamethasone was 0.35 +/- 0.18 mg/kg (range, 0.08-0.62 mg/kg) and the actual dose +/- SD was 10.58 +/- 1.92 mg (range, 5-16 mg). Over a 30-day period, 6 patients (6%) had one repeated emergency department visit, 6 patients (6%) were admitted to the hospital, and 3 patients (3%) presented to an outpatient clinic for asthma-related symptoms. CONCLUSIONS: Injectable dexamethasone administered orally may be an efficacious treatment for asthma exacerbation in pediatric patients. A randomized control trial comparing injectable dexamethasone administered orally to other dexamethasone formulations/routes of administration should be performed to adequately assess the bioequivalence and effectiveness of the former formulation. PMID- 29042833 TI - Impact of a Pharmacist-Led Chemotherapy Education Program on the Knowledge of Pediatric Hematology/Oncology Nurses. AB - OBJECTIVES: Medication errors involving chemotherapy are a serious source of avoidable medical harm that can result in chemotherapy-related adverse drug events. Efforts to reduce errors in the past decade have largely focused on chemotherapy errors at the prescriber level, using computerized or automated technology, but little has been done to ensure chemotherapy is administered accurately at the nursing level. The current study implemented a pharmacist-led, supplemental, institution-specific training program to nursing staff regarding the use of chemotherapy and to address knowledge deficits in newly hired nursing personnel. METHODS: Inpatient pediatric oncology nurses were eligible to participate in a 3-session educational program regarding chemotherapy principles, adverse event management, and supportive care. Pre- and posttests were administered during the sessions to assess baseline and acquired knowledge. An attitudes survey was given to nurses prior to their first session and after the last session to assess the nurse's comfort with administration and management of chemotherapy. RESULTS: Posttest scores following program implementation show a significant increase in baseline knowledge. Scores increased by 14.1% (p < 0.001) overall; they increased 6% (p = 0.266), 22% (p = <0.001), and 16.5% (p = <0.001) after sessions 1, 2, and 3, respectively. All respondents requested additional classes for orientation or continuing education. CONCLUSIONS: A pharmacist-led, educational program significantly improves knowledge of chemotherapy administration and monitoring in pediatric oncology nurses and was well received by participants as an additional training opportunity. PMID- 29042834 TI - Improving Palivizumab Compliance rough a Pharmacist-Managed RSV Prevention Clinic. AB - OBJECTIVES: Palivizumab is a monoclonal antibody approved for the prevention of serious lower respiratory tract infections caused by respiratory syncytial virus (RSV) in high-risk pediatric patients. While palivizumab is more effective if used correctly, compliance with the monthly dosing is suboptimal. We established a pharmacist-managed RSV prevention clinic in an effort to improve compliance. The primary objective of this study was to determine the impact of a pharmacist managed RSV prevention clinic on palivizumab compliance. METHODS: A chart review was performed. Patients who received palivizumab between September 2009 and April 2012 were identified. Compliance was determined as the number of patients who received eligible doses at 28- to 30-day intervals, consecutively. RESULTS: One hundred seventy-two patients received at least 1 dose of palivizumab. An average of 92% of patients who received at least 1 dose subsequently received all doses of palivizumab during the RSV season. Of those, 88% received all eligible doses in consecutive 28-to 30-day intervals. CONCLUSION: A pharmacist-managed RSV prevention clinic can assist physicians in the prevention of RSV by increasing compliance with palivizumab dosing. PMID- 29042835 TI - Double-Blind Randomized Placebo-Controlled Trial of Single-Dose Intravenous Acetaminophen for Pain Associated With Adenotonsillectomy in Pediatric Patients With Sleep-Disordered Breathing. AB - OBJECTIVES: Adequate pain control is an important component in the postoperative outcome for pediatric adenotonsillectomy patients with sleep-disordered breathing (SDB). Intravenous acetaminophen appears to be a favorable analgesic adjunct owing to its predictable pharmacokinetics and opioid-sparing effects; however, its role in pediatric adenotonsillectomy pain management remains unclear. METHODS: In this prospective, randomized, double-blinded, controlled study, subjects with the diagnosis of SDB, aged 2 to 8 years, who required extended postoperative admission, received intravenous acetaminophen (15 mg/kg) or saline placebo intraoperatively in addition to morphine (0.1 mg/kg) for postoperative surgical analgesia. Pain scores in the postanesthesia care unit (PACU) using the FLACC (Faces, Leg, Activity, Cry, Consolability) score were used to determine the need for supplemental analgesic agents in the PACU. The PACU time and time to the first request for pain medication on the inpatient ward were also measured. RESULTS: A total of 239 patients were included in the final data analysis (118 in the intravenous acetaminophen group and 121 in the saline placebo group). The 2 groups did not differ in the proportion of patients reaching FLACC scores = 4 in the PACU (p = 0.223); mean FLACC scores in the PACU (p = 0.336); mean PACU time (p = 0.883); or time to requesting pain medication on the inpatient ward (p = 0.640). CONCLUSIONS: A single intraoperative dose of intravenous acetaminophen did not alter the postoperative course of pediatric patients with SDB following adenotonsillectomy. PMID- 29042836 TI - Evaluation of the Effects of Extracorporeal Membrane Oxygenation on Antiepileptic Drug Serum Concentrations in Pediatric Patients. AB - OBJECTIVES: Patients supported on extracorporeal membrane oxygenation (ECMO) have an increased incidence of seizures. Phenobarbital (PB) and fosphenytoin (fos-PHT) are common antiepileptic drugs (AEDs) used to manage seizures in the pediatric population; however, it is unknown what effect ECMO has on the serum concentrations of AEDs. The purpose of this study is to evaluate the effect of ECMO on AED serum concentrations. METHODS: A retrospective, matched-cohort study was performed in patients younger than 18 years who received ECMO and were treated with intravenous (IV) PB or fos-PHT at Texas Children's Hospital between 2004 and 2014. Patients receiving IV AED therapy and ECMO were matched, based on age, sex, and weight, with patients receiving IV AED therapy without ECMO. The 24 hour cumulative AED dose, serum concentrations, number of doses per serum concentration drawn ratio, volume of distribution, therapeutic serum concentrations, and time to therapeutic serum concentration were compared between both groups. The fos-PHT and PB groups were analyzed in all patients and in neonates only. RESULTS: Fourteen patients met inclusion criteria. The fos-PHT neonatal (20.1 vs 11.3 mg/kg/day, p = 0.044), PB composite (33.9 vs 21.6 mg/kg/day, p = 0.012), and PB neonatal (40.3 vs 20 mg/kg/day, p = 0.04) had larger 24-hour cumulative doses compared with non-ECMO patients. Lower serum concentrations were observed in the PB composite ECMO group (19.1 vs 35.4 mg/L, p < 0.001) and the PB neonatal ECMO group (20.5 vs 27.8 mg/L, p = 0.01) compared with non-ECMO patients. CONCLUSION: Pediatric patients receiving PB on ECMO and neonatal patients receiving fos-PHT on ECMO required larger doses, and in pediatric patients achieved lower serum concentrations, suggesting the necessity for alternative dosing strategies in these populations. PMID- 29042837 TI - Vancomycin Dosing in Pediatric Extracorporeal Membrane Oxygenation: Potential Impacts of New Technologies. AB - OBJECTIVES: The objective of the current study was to evaluate the doses of vancomycin used to obtain therapeutic drug concentrations in pediatric patients on extracorporeal membrane oxygenation (ECMO), using new ECMO technologies. METHODS: This was a single-center, retrospective study of patients treated with vancomycin while receiving ECMO using low-volume circuit technology. RESULTS: A total of 28 patients were included in the analysis of the primary endpoint. Patients had a median age of 6 weeks (0-11 years) and a median weight of 3.45 kg (2.44-37.2 kg). Ultrafiltration was used in 89.3% of patients at initiation of ECMO regardless of baseline renal function, resulting in a median urine output of 2 mL/kg/hr at the time of the final vancomycin dose. Most patients started vancomycin at the same time as ECMO. The median total daily dose was 30 mg/kg/day. The median total daily dose in a subset of patients less than one year of age was 20 mg/kg/day. Nearly all patients had at least 1 therapeutic trough serum vancomycin concentration. A total of 16 patients completed their vancomycin course using an interval of every 12 hours or shorter. Half-life was calculated in a subset of 11 patients and the mean was found to be 12.3 +/- 2.8 hours. CONCLUSIONS: An initial dosing interval of every 12 hours to provide a total daily dose of 30 mg/kg/day is a possible option in pediatric patients on ECMO provided that renal function is normal at baseline. Monitoring of serum vancomycin concentrations for adjustment of dosing is required throughout therapy and is still warranted. PMID- 29042838 TI - Dose-Banding of Intravenous Piperacillin-Tazobactam in Pediatric Surgical Inpatients. AB - BACKGROUND: Antimicrobial doses in children are often prescribed by using an individually calculated dose per weight (e.g., mg/kg) or based on body surface area. Dosing errors are the most commonly reported medication errors in children. A "dose-banding" strategy is frequently used for some over-the-counter drugs to prevent dosing errors. It could also lead to efficiencies by enabling batch preparation of intravenous (IV) medications in hospitals. OBJECTIVES: To evaluate whether use of dose-banding for IV piperacillin-tazobactam results in acceptable dose variation from standard practice of individualized prescription of 100 mg/kg in children. METHODS: We conducted a historically controlled intervention study comparing prescriptions of IV piperacillin-tazobactam before vs. after introduction of dose-banding prescribing guidance for surgical inpatients weighing >5 kg and <16 years of age at the tertiary referral pediatric hospital in Western Australia. RESULTS: Dose-banding of IV piperacillin-tazobactam (with a maximum of 15% departure from the recommended milligram-per-weight dose of 100 mg/kg) resulted in similar overall variation of prescribed dose in comparison to individualized milligram-per-weight (non-dose-banded) prescribing. There was a trend toward fewer prescriptions with large variance (>30% variation from the 100 mg/kg dose) in the dose-banded compared to the non-dose-banded group (1/140 vs. 5/105; p = 0.09). CONCLUSIONS: Our study showed dose-banding of IV piperacillin tazobactam resulted in acceptable variation when compared to individualized milligram-per-weight dosing in children. Prospectively designed controlled trials are warranted to determine whether dose-banding could reduce medication errors and optimize use of hospital resources. Implications for future practice could include faster batch preparation, shorter checking and dispensing time, and reduction in drug wastage. PMID- 29042839 TI - A Retrospective Study on Infusion-Related Reactions to Rituximab in a Heterogeneous Pediatric Population. AB - OBJECTIVES: To assess risks and outcomes of infusion-related reactions to rituximab in a heterogeneous pediatric population. METHODS: All patients who received rituximab between July 2010 and July 2012 were retrieved from the pharmacy software and included for analysis. Data were collected according to 4 categories: demographic data, infusion data, infusion-related reactions, and biological data considered as risk factors (i.e., absolute lymphocyte count, lactate dehydrogenase levels). RESULTS: Sixty-seven patients treated for a total of 17 different indications were included. A total of 282 rituximab infusions were administered. Forty-three, mostly grade 1 or 2, infusion-related reactions occurred in 30 patients. Reactions occurred in 39.2% "first-dose" infusions, but this rate dropped drastically to 2.7% in subsequent doses. In multivariate analysis, high absolute lymphocyte count was the only risk factor for infusion related reaction (OR = 1.03; 95% CI: 1.01-1.06; p = 0.014). CONCLUSIONS: Rituximab infusion-related reactions in a heterogeneous pediatric population were frequent on first infusion, but rare in subsequent ones. Overall, these reactions were mild and manageable through pharmacological treatment. Patients with an elevated absolute lymphocyte count before infusion were at greater risk for an infusion-related reaction. PMID- 29042840 TI - Warfarin-Rifampin Drug Interaction in a Pediatric Patient. AB - Rifampin has been documented to significantly attenuate the effect of warfarin in adult patients. No data have been presented on the use of rifampin and warfarin in a pediatric patient. We report an extreme case of increased warfarin metabolism in a pediatric patient who was concomitantly receiving rifampin, despite receiving other medications that significantly decrease warfarin metabolism. The inhibitory effect of rifampin on warfarin therapy may be amplified in pediatric patients. PMID- 29042841 TI - Bradycardia in a Pediatric Heart Transplant Recipient: Is It the Sugammadex? AB - Sugammadex is a novel pharmacologic agent that is used to selectively reverse the effects of the neuromuscular blocking agents rocuronium and vecuronium. Various advantages have been reported when comparing its reversal of neuromuscular blockade to that achieved with acetylcholinesterase inhibitors (neostigmine). In heart transplant recipients, bradycardia may occur following the administration of acetylcholinesterase inhibitors, due to the denervation of the heart. Theoretically, the combination of rocuronium and sugammadex could be advantageous in this clinical scenario to avoid the potential bradycardia resulting from neostigmine administration. We present a 10-year-old male who developed profound bradycardia immediately following the administration of intravenous sugammadex. The options for reversal of neuromuscular blockade in heart transplant recipients is discussed, previous reports of bradycardia following sugammadex are presented, and the role of sugammadex in the bradycardia in our patient is reviewed. PMID- 29042842 TI - Bridging the Gap between Theory and Practice in Integrated Care: The Case of the Diabetic Foot Pathway in Tuscany. AB - INTRODUCTION AND BACKGROUND: As diabetic foot (DF) care benefits from integration, monitoring geographic variations in lower limb Major Amputation rate enables to highlight potential lack of Integrated Care. In Tuscany (Italy), these DF outcomes were good on average but they varied within the region. In order to stimulate an improvement process towards integration, the project aimed to shift health professionals' focus on the geographic variation issue, promote the Population Medicine approach, and engage professionals in a community of practice. METHOD: Three strategies were thus carried out: the use of a transparent performance evaluation system based on benchmarking; the use of patient stories and benchmarking analyses on outcomes, service utilization and costs that cross-checked delivery- and population-based perspectives; the establishment of a stable community of professionals to discuss data and practices. RESULTS: The project enabled professionals to shift their focus on geographic variation and to a joint accountability on outcomes and costs for the entire patient pathways. Organizational best practices and gaps in integration were identified and improvement actions towards Integrated Care were implemented. CONCLUSION AND DISCUSSION: For the specific category of care pathways whose geographic variation is related to a lack of Integrated Care, a comprehensive strategy to improve outcomes and reduce equity gaps by diffusing integration should be carried out. PMID- 29042844 TI - Designing a Care Pathway Model - A Case Study of the Outpatient Total Hip Arthroplasty Care Pathway. AB - INTRODUCTION: Although the clinical attributes of total hip arthroplasty (THA) care pathways have been thoroughly researched, a detailed understanding of the equally important organisational attributes is still lacking. The aim of this article is to contribute with a model of the outpatient THA care pathway that depicts how the care team should be organised to enable patient discharge on the day of surgery. THEORY: The outpatient THA care pathway enables patients to be discharged on the day of surgery, shortening the length of stay and intensifying the provision and organisation of care. We utilise visual care modelling to construct a visual design of the organisation of the care pathway. METHODS: An embedded case study was conducted of the outpatient THA care pathway at a teaching hospital in the Netherlands. The data were collected using a visual care modelling toolkit in 16 semi-structured interviews. Problems and inefficiencies in the care pathway were identified and addressed in the iterative design process. RESULTS: The results are two visual models of the most critical phases of the outpatient THA care pathway: diagnosis & preparation (1) and mobilisation & discharge (4). The results show the care team composition, critical value exchanges, and sequence that enable patient discharge on the day of surgery. CONCLUSION: The design addressed existing problems and is an optimisation of the case hospital's pathway. The network of actors consists of the patient (1), radiologist (1), anaesthetist (1), nurse specialist (1), pharmacist (1), orthopaedic surgeon (1,4), physiotherapist (1,4), nurse (4), doctor (4) and patient application (1,4). The critical value exchanges include patient preparation (mental and practical), patient education, aligned care team, efficient sequence of value exchanges, early patient mobilisation, flexible availability of the physiotherapist, functional discharge criteria, joint decision making and availability of the care team. PMID- 29042843 TI - The Development, Description and Appraisal of an Emergent Multimethod Research Design to Study Workforce Changes in Integrated Care Interventions. AB - INTRODUCTION: In this paper, we provide a detailed and explicit description of the processes and decisions underlying and shaping the emergent multimethod research design of our study on workforce changes in integrated chronic care. THEORY AND METHODS: The study was originally planned as mixed method research consisting of a preliminary literature review and quantitative check of these findings via a Delphi panel. However, when the findings of the literature review were not appropriate for quantitative confirmation, we chose to continue our qualitative exploration of the topic via qualitative questionnaires and secondary analysis of two best practice case reports. RESULTS: The resulting research design is schematically described as an emergent and interactive multimethod design with multiphase combination timing. In doing so, we provide other researchers with a set of theory- and experience-based options to develop their own multimethod research and provide an example for more detailed and structured reporting of emergent designs. CONCLUSION AND DISCUSSION: We argue that the terminology developed for the description of mixed methods designs should also be used for multimethod designs such as the one presented here. PMID- 29042845 TI - Implementation of Integrated Service Networks under the Quebec Mental Health Reform: Facilitators and Barriers associated with Different Territorial Profiles. AB - INTRODUCTION: This study evaluates implementation of the Quebec Mental Health Reform (2005-2015), which promoted the development of integrated service networks, in 11 local service networks organized into four territorial groups according to socio-demographic characteristics and mental health services offered. METHODS: Data were collected from documents concerning networks; structured questionnaires completed by 90 managers and by 16 respondent psychiatrists; and semi-structured interviews with 102 network stakeholders. Factors associated with implementation and integration were organized according to: 1) reform characteristics; 2) implementation context; 3) organizational characteristics; and 4) integration strategies. RESULTS: While local networks were in a process of development and expansion, none were fully integrated at the time of the study. Facilitators and barriers to implementation and integration were primarily associated with organizational characteristics. Integration was best achieved in larger networks including a general hospital with a psychiatric department, followed by networks with a psychiatric hospital. Formalized integration strategies such as service agreements, liaison officers, and joint training reduced some barriers to implementation in networks experiencing less favourable conditions. CONCLUSION: Strategies for the implementation of healthcare reform and integrated service networks should include sustained support and training in best-practices, adequate performance indicators and resources, formalized integration strategies to improve network coordination and suitable initiatives to promote staff retention. PMID- 29042846 TI - Developing a User Reported Measure of Care Co-ordination. AB - INTRODUCTION: Older people with chronic conditions often receive poor care because of the fragmented way in which their services are delivered from multiple sources. Providers have limited tools to directly capture the views of older people about their experiences of care co-ordination. The study aim was to design and test a survey tool to capture the experiences of older people with chronic conditions regarding how well their health and (where applicable) social care was co-ordinated. METHOD: To inform the questionnaire development, we reviewed the literature on existing surveys and care co-ordination theory, and on the health status of our target audience (people aged 65 or over with one or more chronic conditions and not in hospital or residential institutions). We also consulted stakeholders including those working in health and social care services and those with expertise in the subject area. We grouped questions around experiences of care in three dimensions: care in the home environment, planned transitions in care and unplanned situations. We also designed the questions so they could be mapped onto three recognised dimensions of continuity of care - management continuity, information continuity and relational continuity - as articulated in the international literature. The questionnaire was tested using focus groups and cognitive interviews and piloted with people aged 65 and over with at least one chronic condition, using a postal survey. We used service user records in 32 general practices located in four areas and a population database held by one local authority in England as the sampling frame. RESULTS: The pilot achieved an overall response rate of 27.6% (n = 562 responses). Ninety five percent of respondents answered 30 or more of the 46 questions and three respondents answered fewer than 10 questions. Twenty four items achieved one or more positive correlations greater than 0.5 with other survey items and four instances of positive associations greater than 0.7 were found. DISCUSSION/CONCLUSION: The growing focus on care co-ordination demonstrates the need for a tool that can capture the experiences of patients accessing care across organisational and professional boundaries, to inform the improvement of care co-ordination activities from a patient perspective. Early results suggest that our tool may have a contribution to make in these areas. However, more work is required to test the efficacy of the tool on a larger scale and in different settings, and to find ways of improving response rates. PMID- 29042847 TI - An Enquiry into Nurse-to-Nurse Collaboration Within the Older People Care Chain as Part of the Integrated Care: A Qualitative Study. AB - INTRODUCTION: Health care systems for older people are becoming more complex and care for older people, in the transition between hospital and primary healthcare requires more systematic collaboration between nurses. This study describes nurses' perceptions of their collaboration when working between hospital and primary healthcare within the older people care chain. THEORY AND METHODS: Using a qualitative approach, informed by grounded theory, six focus groups were conducted with a purposive sample of registered nurses (n = 28) from hospitals (n = 14) and primary healthcare (n = 14) during 2013. The data were analyzed using dimensional analysis. FINDINGS: Four dimensions of collaboration were identified: 1) Context and Situation, 2) Conditions, 3) Processes and Interactions and 4) The Consequences of nurse-to-nurse collaboration within the older people care chain. These four dimensions were then conceptualized into a model of nurse-to-nurse collaboration. DISCUSSION AND CONCLUSION: Improved collaboration is useful for the safe, timely and controlled transfer of older people between hospital and primary healthcare organizations and also in healthcare education. The findings in this study of nurse-to-nurse collaboration provides direction and opportunities to improve collaboration and subsequently, the continuity and integration in older people care in the transition between organizations. PMID- 29042848 TI - Integrated Diabetes Care Delivered by Patients - A Case Study from Bulgaria. AB - INTRODUCTION: Increasing numbers of persons are living with multiple chronic diseases and unmet medical needs in Bulgaria. The Bulgarian 'Diabetic care' non profit (DCNPO) programme aims to provide comprehensive integrated care focusing on people with diabetes and their co-morbidities. METHODS: The DCNPO programme was selected as one of eight 'high potential' programmes in the Innovating Care for People with Multiple Chronic Conditions (ICARE4EU) project, covering 31 European countries. Data was first gathered with a questionnaire after which semi structured interviews with project staff and participants were conducted during a site visit. RESULTS: The programme trains diabetic patients to act as carers, case managers, self-management trainers and health system navigators for diabetic patients and their family. The programme improved care coordination and patient centered care by offering free care delivered by a multidisciplinary team. It facilitates the collaboration between patients, volunteers, health providers and the community. Internal evaluations demonstrate reduced hospital admissions and avoidable amputations, with consequent cost savings for the health care system. CONCLUSION: Integrated care provided by volunteering patients can empower people suffering from diabetes and their co-morbidities and address health and social inequalities in resource-poor settings. It can also contribute to an increased trust and improved satisfaction among vulnerable patients with complex care needs. PMID- 29042850 TI - More than Just a Narrative: Measuring People's Experience of Care Coordination to Improve Quality and Outcomes. PMID- 29042849 TI - Does Coordinated Postpartum Care Influence Costs? AB - QUESTIONS UNDER STUDY: To investigate changes to health insurance costs for post discharge postpartum care after the introduction of a midwife-led coordinated care model. METHODS: The study included mothers and their newborns insured by the Helsana health insurance group in Switzerland and who delivered between January 2012 and May 2013 in the canton of Basel Stadt (BS) (intervention canton). We compared monthly post-discharge costs before the launch of a coordinated postpartum care model (control phase, n = 144) to those after its introduction (intervention phase, n = 92). Costs in the intervention canton were also compared to those in five control cantons without a coordinated postpartum care model (cross-sectional control group: n = 7, 767). RESULTS: The average monthly post discharge costs for mothers remained unchanged in the seven months following the introduction of a coordinated postpartum care model, despite a higher use of midwife services (increasing from 72% to 80%). Likewise, monthly costs did not differ between the intervention canton and five control cantons. In multivariate analyses, the ambulatory costs for mothers were not associated with the post intervention phase. Cross-sectionally, however, they were positively associated with midwifery use. For children, costs in the post-intervention phase were lower in the first month after hospital discharge compared to the pre-intervention phase (difference of -114 CHF [95%CI -202 CHF to -27 CHF]), yet no differences were seen in the cross-sectional comparison. CONCLUSIONS: The introduction of a coordinated postpartum care model was associated with decreased costs for neonates in the first month after hospital discharge. Despite increased midwifery use, costs for mothers remained unchanged. PMID- 29042851 TI - Implementing Information and Communication Technology to Support Community Aged Care Service Integration: Lessons from an Australian Aged Care Provider. AB - INTRODUCTION: There is limited evidence of the benefits of information and communication technology (ICT) to support integrated aged care services. OBJECTIVES: We undertook a case study to describe carelink+, a centralised client service management ICT system implemented by a large aged and community care service provider, Uniting. We sought to explicate the care-related information exchange processes associated with carelink+ and identify lessons for organisations attempting to use ICT to support service integration. METHODS: Our case study included seventeen interviews and eleven observation sessions with a purposive sample of staff within the organisation. Inductive analysis was used to develop a model of ICT-supported information exchange. RESULTS: Management staff described the integrated care model designed to underpin carelink+. Frontline staff described complex information exchange processes supporting coordination of client services. Mismatches between the data quality and the functions carelink+ was designed to support necessitated the evolution of new work processes associated with the system. CONCLUSIONS: There is value in explicitly modelling the work processes that emerge as a consequence of ICT. Continuous evaluation of the match between ICT and work processes will help aged care organisations to achieve higher levels of ICT maturity that support their efforts to provide integrated care to clients. PMID- 29042852 TI - Corrigendum: Obesity and Co-morbid Conditions Are Associated with Specific Neuropsychiatric Symptoms in Mild Cognitive Impairment. AB - [This corrects the article on p. 164 in vol. 9, PMID: 28611655.]. PMID- 29042853 TI - Corrigendum: An Exploration of Charge Compensating Ion Channels across the Phagocytic Vacuole of Neutrophils. AB - [This corrects the article on p. 94 in vol. 8, PMID: 28293191.]. PMID- 29042854 TI - Influence of Standard Laboratory Procedures on Measures of Erythrocyte Damage. AB - The ability to characterize the mechanical properties of erythrocytes is important in clinical and research contexts: to diagnose and monitor hematologic disorders, as well as to optimize the design of cardiovascular implants and blood circulating devices with respect to blood damage. However, investigation of red blood cell (RBC) properties generally involves preparatory and processing steps. Even though these impose mechanical stresses on cells, little is known about their impact on the final measurement results. In this study, we investigated the effect of centrifuging, vortexing, pipetting, and high pressures on several markers of mechanical blood damage and RBC membrane properties. Using human venous blood, we analyzed erythrocyte damage by measuring free hemoglobin, phosphatidylserine exposure by flow cytometry, RBC deformability by ektacytometry and the parameters of a complete blood count. We observed increased levels of free hemoglobin for all tested procedures. The release of hemoglobin into plasma depended significantly on the level of stress. Elevated pressures and centrifuging also altered mean cell volume (MCV) and mean corpuscular hemoglobin (MCH), suggesting changes in erythrocyte population, and membrane properties. Our results show that the effects of blood handling can significantly influence erythrocyte damage metrics. Careful quantification of this influence as well as other unwanted secondary effects should thus be included in experimental protocols and accounted for in clinical laboratories. PMID- 29042855 TI - Corrigendum: FVB/NJ Mice Are a Useful Model for Examining Cardiac Adaptations to Treadmill Exercise. AB - [This corrects the article on p. 636 in vol. 7, PMID: 28066267.]. PMID- 29042856 TI - The Utility of a Computerized Algorithm Based on a Multi-Domain Profile of Measures for the Diagnosis of Attention Deficit/Hyperactivity Disorder. AB - The current gold standard for diagnosis of attention deficit/hyperactivity disorder (ADHD) includes subjective measures, such as clinical interview, observation, and rating scales. The significant heterogeneity of ADHD symptoms represents a challenge for this assessment and could prevent an accurate diagnosis. The aim of this work was to investigate the ability of a multi-domain profile of measures, including blood fatty acid (FA) profiles, neuropsychological measures, and functional measures from near-infrared spectroscopy (fNIRS), to correctly recognize school-aged children with ADHD. To answer this question, we elaborated a supervised machine-learning method to accurately discriminate 22 children with ADHD from 22 children with typical development by means of the proposed profile of measures. To assess the performance of our classifier, we adopted a nested 10-fold cross validation, where the original dataset was split into 10 subsets of equal size, which were used repeatedly for training and testing. Each subset was used once for performance validation. Our method reached a maximum diagnostic accuracy of 81% through the combining of the predictive models trained on neuropsychological, FA profiles, and deoxygenated-hemoglobin features. With respect to the analysis of a single-domain dataset per time, the most discriminant neuropsychological features were measures of vigilance, focused and sustained attention, and cognitive flexibility; the most discriminating blood FAs were linoleic acid and the total amount of polyunsaturated fatty acids. Finally, with respect to the fNIRS data, we found a significant advantage of the deoxygenated-hemoglobin over the oxygenated-hemoglobin data in terms of predictive accuracy. These preliminary findings show the feasibility and applicability of our machine-learning method in correctly identifying children with ADHD based on multi-domain data. The present machine-learning classification approach might be helpful for supporting the clinical practice of diagnosing ADHD, even fostering a computer-aided diagnosis perspective. PMID- 29042857 TI - Clinical Implications of Associations between Headache and Gastrointestinal Disorders: A Study Using the Hallym Smart Clinical Data Warehouse. AB - BACKGROUND: The brain and gastrointestinal (GI) tract are strongly connected via neural, endocrine, and immune pathways. Previous studies suggest that headaches, especially migraines, may be associated with various GI disorders. However, upper GI endoscopy in migraineurs has shown a low prevalence of abnormal findings. Also, the majority of studies have not demonstrated an association between Helicobacter pylori (HP) infection and migraine, although a pathogenic role for HP infection in migraines has been suggested. Further knowledge concerning the relation between headaches and GI disorders is important as it may have therapeutic consequences. Thus, we sought to investigate possible associations between GI disorders and common primary headaches, such as migraines and tension type headaches (TTH), using the Smart Clinical Data Warehouse (CDW) over a period of 10 years. METHODS: We retrospectively investigated clinical data using a clinical data analytic solution called the Smart CDW from 2006 to 2016. In patients with migraines and TTH who visited a gastroenterology center, GI disorder diagnosis, upper GI endoscopy findings, and results of HP infection were collected and compared to clinical data from controls, who had health checkups without headache. The time interval between headache diagnosis and an examination at a gastroenterology center did not exceed 1 year. RESULTS: Patients were age- and sex-matched and eligible cases were included in the migraine (n = 168), the TTH (n = 168), and the control group (n = 336). Among the GI disorders diagnosed by gastroenterologists, gastroesophageal reflux disorder was more prevalent in the migraine group, whereas gastric ulcers were more common in the migraine and TTH groups compared with controls (p < 0.0001). With regard to endoscopic findings, there were high numbers of erosive gastritis and chronic superficial gastritis cases in the migraine and TTH groups, respectively, and the severity of gastritis was significantly higher in patients with TTH compared with controls (p < 0.001). However, no differences were observed in the prevalence of HP infection between the groups. CONCLUSION: The observed association in this study may suggest that primary headache sufferers who experience migraines or TTH are more prone to GI disorders, which may have various clinical implications. Further research concerning the etiology of the association between headaches and GI disorders is warranted. PMID- 29042858 TI - Expanding the Role of Thyroid-Stimulating Hormone in Skeletal Physiology. AB - The dogma that thyroid-stimulating hormone (TSH) solely regulates the production of thyroid hormone from the thyroid gland has hampered research on its wider physiological roles. The action of pituitary TSH on the skeleton has now been well described; in particular, its action on osteoblasts and osteoclasts. It has also been recently discovered that the bone marrow microenvironment acts as an endocrine circuit with bone marrow-resident macrophages capable of producing a novel TSH-beta subunit variant (TSH-betav), which may modulate skeletal physiology. Interestingly, the production of this TSH-betav is positively regulated by T3 accentuating such modulation in the presence of thyroid overactivity. Furthermore, a number of small molecule ligands acting as TSH agonists, which allosterically modulate the TSH receptor have been identified and may have similar modulatory influences on bone cells suggesting therapeutic potential. This review summarizes our current understanding of the role of TSH, TSH-beta, TSH-betav, and small molecule agonists in bone physiology. PMID- 29042859 TI - Associations between Systemic Sclerosis and Thyroid Diseases. AB - We have reviewed scientific literature about the association of systemic sclerosis (SSc) and thyroid disorders. A high incidence, and prevalence, of new cases of autoimmune thyroiditis (AT) and/or hypothyroidism have been shown in sclerodermic patients (overall in the female gender). An association among a Th1 immune-predominance, low vitamin D levels, and AT have been also shown in SSc patients. Cases of Graves' disease (GD) have been described in SSc patients, too, according with the higher prevalence of thyroid autoimmunity. It has been also shown a higher prevalence of papillary thyroid cancer (PTC), in association with AT, in SSc patients. However, in order to confirm results about GD and thyroid cancer, studies in larger number of patients with SSc are needed. During the follow-up of SSc patients it would be appropriate to monitor carefully their thyroid status. The abovementioned data strongly suggest a periodic thyroid function follow-up in female SSc patients [showing a borderline high (although in the normal range) thyroid-stimulating hormone level, antithyroid peroxidase antibody positivity, and a small thyroid with a hypoechoic pattern], and, when necessary, appropriate treatments. In conclusion, most of the studies show an association among SSc, AT, and hypothyroidism, such as an increased prevalence of TC overall in SSc patients with AT. Only few cases of GD have been also described in SSc. PMID- 29042860 TI - Toll-Like Receptor 8 Is a Major Sensor of Group B Streptococcus But Not Escherichia coli in Human Primary Monocytes and Macrophages. AB - TLR8 is the major endosomal sensor of degraded RNA in human monocytes and macrophages. It has been implicated in the sensing of viruses and more recently also bacteria. We previously identified a TLR8-IFN regulatory factor 5 (IRF5) signaling pathway that mediates IFNbeta and interleukin-12 (IL-12) induction by Staphylococcus aureus and is antagonized by TLR2. The relative importance of TLR8 for the sensing of various bacterial species is however still unclear. We here compared the role of TLR8 and IRF5 for the sensing of Group B Streptococcus (GBS), S. aureus, and Escherichia coli in human primary monocytes and monocyte derived macrophages (MDM). GBS induced stronger IFNbeta and TNF production as well as IRF5 nuclear translocation compared to S. aureus grown to the stationary phase, while S. aureus in exponential growth appeared similarly potent to GBS. Cytokine induction in primary human monocytes by GBS was not dependent on hemolysins, and induction of IFNbeta and IL-12 as well as IRF5 activation were reduced with TLR2 ligand costimulation. Heat inactivation of GBS reduced IRF5 and NF-kB translocation, while only the viable E. coli activated IRF5. The attenuated stimulation correlated with loss of bacterial RNA integrity. The E. coli-induced IRF5 translocation was not inhibited by TLR2 costimulation, suggesting that IRF5 was activated via a TLR8-independent mechanism. Gene silencing of MDM using siRNA revealed that GBS-induced IFNbeta, IL-12-p35, and TNF production was dependent on TLR8 and IRF5. In contrast, cytokine induction by E. coli was TLR8 independent but still partly dependent on IRF5. We conclude that TLR8-IRF5 signaling is more important for the sensing of GBS than for stationary grown S. aureus in human primary monocytes and MDM, likely due to reduced resistance of GBS to phagosomal degradation and to a lower production of TLR2 activating lipoproteins. TLR8 does not sense viable E. coli, while IRF5 still contributes to E. coli-induced cytokine production, possibly via a cytosolic nucleic acid sensing mechanism. PMID- 29042862 TI - Highly Efficient Single-Step Enrichment of Low Abundance Phosphopeptides from Plant Membrane Preparations. AB - Mass spectrometry (MS)-based large scale phosphoproteomics has facilitated the investigation of plant phosphorylation dynamics on a system-wide scale. However, generating large scale data sets for membrane phosphoproteins usually requires fractionation of samples and extended hands-on laboratory time. To overcome these limitations, we developed "ShortPhos," an efficient and simple phosphoproteomics protocol optimized for research on plant membrane proteins. The optimized workflow allows fast and efficient identification and quantification of phosphopeptides, even from small amounts of starting plant materials. "ShortPhos" can produce label-free datasets with a high quantitative reproducibility. In addition, the "ShortPhos" protocol recovered more phosphorylation sites from membrane proteins, especially plasma membrane and vacuolar proteins, when compared to our previous workflow and other membrane-based data in the PhosPhAt 4.0 database. We applied "ShortPhos" to study kinase-substrate relationships within a nitrate-induction experiment on Arabidopsis roots. The "ShortPhos" identified significantly more known kinase-substrate relationships compared to previous phosphoproteomics workflows, producing new insights into nitrate-induced signaling pathways. PMID- 29042863 TI - Adult reference intervals for IgG subclasses with Siemens immunonephelometric assays in Chinese population. AB - OBJECTIVE: To determine the adult reference intervals for the Siemens IgG subclass reagents. METHODS: 636 blood samples of healthy adults were analyzed to determine the level of IgG subclass using the reagents of Siemens immunonephelometric assay with molecular biology kits. RESULTS: IgGSc reference intervals were as follows: IgG1 4.45-9.76 g/L, IgG2 2.07-8.57 g/L, IgG3 0.08-0.80 g/L and IgG4 0.05-1.54 g/L. There was an excellent correlation between the total IgG and the sum of the IgG subclasses. No significant gender and age differences were observed. CONCLUSIONS: Our data provide the missing reference intervals and enable the use of the nephelometric IgG subclass reagents in Chinese. The study can offer reference on clinic diagnose. PMID- 29042861 TI - Corrigendum: Natural Killer Cells from Patients with Recombinase-Activating Gene and Non-Homologous End Joining Gene Defects Comprise a Higher Frequency of CD56bright NKG2A+++ Cells, and Yet Display Increased Degranulation and Higher Perforin Content. AB - [This corrects the article on p. 798 in vol. 8, PMID: 28769923.]. PMID- 29042864 TI - Recent advances in pediatric interventional cardiology. AB - During the last 10 years, there have been major technological achievements in pediatric interventional cardiology. In addition, there have been several advances in cardiac imaging, especially in 3-dimensional imaging of echocardiography, computed tomography, magnetic resonance imaging, and cineangiography. Therefore, more types of congenital heart diseases can be treated in the cardiac catheter laboratory today than ever before. Furthermore, lesions previously considered resistant to interventional therapies can now be managed with high success rates. The hybrid approach has enabled the overcoming of limitations inherent to percutaneous access, expanding the application of endovascular therapies as adjunct to surgical interventions to improve patient outcomes and minimize invasiveness. Percutaneous pulmonary valve implantation has become a successful alternative therapy. However, most of the current recommendations about pediatric cardiac interventions (including class I recommendations) refer to off-label use of devices, because it is difficult to study the safety and efficacy of catheterization and transcatheter therapy in pediatric cardiac patients. This difficulty arises from the challenge of identifying a control population and the relatively small number of pediatric patients with congenital heart disease. Nevertheless, the pediatric interventional cardiology community has continued to develop less invasive solutions for congenital heart defects to minimize the need for open heart surgery and optimize overall outcomes. In this review, various interventional procedures in patients with congenital heart disease are explored. PMID- 29042865 TI - Additional corticosteroids or alternative antibiotics for the treatment of macrolide-resistant Mycoplasma pneumoniae pneumonia. PMID- 29042866 TI - Effects of cord blood vitamin D levels on the risk of neonatal sepsis in premature infants. AB - PURPOSE: Vitamin D plays a key role in immune function. Vitamin D deficiency may play a role in the pathogenesis of infections, and low levels of circulating vitamin D are strongly associated with infectious diseases. In this study, we aimed to evaluate the effects of low vitamin D levels in cord blood on neonatal sepsis in preterm infants. METHODS: One hundred seventeen premature infants with gestational age of <37 weeks were enrolled. In the present study, severe vitamin D deficiency (group 1) was defined as a 25-hydroxyvitamin D (25(OH)D) concentration <5 ng/mL; vitamin D insufficiency (group 2), 25(OH)D concentration >=5 ng/mL and <15 ng/mL; and vitamin D sufficiency (group 3), 25(OH)D concentration >=15 ng/mL. RESULTS: Sixty-three percent of the infants had deficient levels of cord blood vitamin D (group 1), 24% had insufficient levels (group 2), and 13% were found to have sufficient levels (group 3). The rate of neonatal sepsis was higher in group 2 than in groups 1 and 3. CONCLUSION: There was no significant relationship between the cord blood vitamin D levels and the risk of neonatal sepsis in premature infants. PMID- 29042867 TI - The impact of an educational intervention on parents' decisions to vaccinate their <60-month-old children against influenza. AB - PURPOSE: Seasonal influenza can be prevented by vaccination. Disease prevention in children aged <60 months is of particular importance because of the associated familial and societal burden. Considering that caretakers make the decision to vaccinate their children, the identification of drivers and barriers to vaccination is essential to increase influenza vaccination coverage. METHODS: A total of 639 parents participated in the pre- and posteducational survey and 450 parents participated in the study via telephone interviews. The participating parents were asked to rank their agreement with each statement of the survey questionnaire on a scale from 1 (strongly disagree) to 5 (strongly agree), and the scores between pre- and postintervention were compared. RESULTS: Before the educational intervention, 105 out of 639 participants reported not to agree to vaccinate their children against influenza. After the intervention, 46 out of the 105 parents changed their opinions about childhood vaccination. The physicians' recommendation received the highest agreement score and was the most important driver to vaccination, whereas the cost of vaccination was the strongest factor for not vaccinating children. In general, the participants significantly changed the agreement scores between pre- and postintervention. However, the unfavorable opinions about vaccination and the convenience of receiving the influenza vaccine did not change significantly. CONCLUSION: The results of this study indicate that a specific educational intervention involving caregivers is very effective in increasing the influenza vaccination coverage of children aged less than 60 months. PMID- 29042868 TI - Characteristics and prognosis of hepatic cytomegalovirus infection in children: 10 years of experience at a university hospital in Korea. AB - PURPOSE: Studies on cytomegalovirus (CMV) infections in immunocompetent children are lacking, and minimal information is available in the medical literature on hepatic manifestations and complications of CMV. The aims of this study were to evaluate the clinical characteristics, laboratory data, and prognosis of children with CMV hepatitis, and to investigate its prevalence at a single medical center in Korea over a 10-year period. METHODS: One hundred thirty-two children diagnosed with CMV infection based on specific markers (anti-CMV IgM, CMV polymerase chain reaction in blood and urine, or CMV culture of urine) were included in the study. Clinical and biochemical characteristics, immunological markers, and outcomes of hepatic CMV infection were determined. RESULTS: The median age of patients (n=132) was 8.5 months (range, 14 days-11.3 years). Peak total bilirubin and alanine aminotransferase levels in serum ranged from 0.11 21.97 mg/dL, and 5-1,517 IU/L, respectively. Alanine aminotransferase remained elevated from 2-48 weeks. Jaundice was the most common clinical feature of hepatic CMV infection during infancy. The hematologic findings revealed anemia, leukocytosis, and monocytosis in CMV-infected patients. All participants recovered without administration of ganciclovir. CONCLUSION: In children with CMV hepatitis, fever was the most common symptom at presentation, and jaundice was the most common clinical feature of hepatic CMV infection in infants younger than 3 months of age. Hepatic CMV infection in immunocompetent children is often a self-limited illness that does not require antiviral therapy, as most patients in this study had favorable outcomes. PMID- 29042869 TI - Clinical characteristics of hypertensive encephalopathy in pediatric patients. AB - PURPOSE: The aim of this study was to assess the clinical characteristics of hypertensive encephalopathy according to the underlying etiologies in children. METHODS: We retrospectively evaluated 33 pediatric patients who were diagnosed as having hypertensive encephalopathy in Chonbuk National University Children's Hospital. Among the patients, 18 were excluded because of incomplete data or because brain magnetic resonance imaging (MRI) was not performed. Finally, 17 patients were enrolled and divided into a renal-origin hypertension group and a non-renal-origin hypertension group according to the underlying cause. We compared the clinical features and brain MRI findings between the 2 groups. RESULTS: The renal group included renal artery stenosis (4), acute poststreptococcal glomerulonephritis (2), lupus nephritis (2), and acute renal failure (1); the nonrenal group included essential hypertension (4), pheochromocytoma (2), thyrotoxicosis (1), and acute promyelocytic leukemia (1). The mean systolic blood pressure of the renal group (172.5+/-36.9 mmHg) was higher than that of the nonrenal group (137.1+/-11.1 mmHg, P<0.05). Seizure was the most common neurologic symptom, especially in the renal group (P<0.05). Posterior reversible encephalopathy syndrome (PRES), which is the most typical finding of hypertensive encephalopathy, was found predominantly in the renal group as compared with the nonrenal group (66.6% vs. 12.5%, P<0.05). CONCLUSION: We conclude that the patients with renal-origin hypertension had a more severe clinical course than those with non-renal-origin hypertension. Furthermore, the renal-origin group was highly associated with PRES on brain MRI. PMID- 29042870 TI - Update of minimally invasive surfactant therapy. AB - To date, preterm infants with respiratory distress syndrome (RDS) after birth have been managed with a combination of endotracheal intubation, surfactant instillation, and mechanical ventilation. It is now recognized that noninvasive ventilation (NIV) such as nasal continuous positive airway pressure (CPAP) in preterm infants is a reasonable alternative to elective intubation after birth. Recently, a meta-analysis of large controlled trials comparing conventional methods and nasal CPAP suggested that CPAP decreased the risk of the combined outcome of bronchopulmonary dysplasia or death. Since then, the use of NIV as primary therapy for preterm infants has increased, but when and how to give exogenous surfactant remains unclear. Overcoming this problem, minimally invasive surfactant therapy (MIST) allows spontaneously breathing neonates to remain on CPAP in the first week after birth. MIST has included administration of exogenous surfactant by intrapharyngeal instillation, nebulization, a laryngeal mask, and a thin catheter. In recent clinical trials, surfactant delivery via a thin catheter was found to reduce the need for subsequent endotracheal intubation and mechanical ventilation, and improves short-term respiratory outcomes. There is also growing evidence for MIST as an alternative to the INSURE (intubation surfactant-extubation) procedure in spontaneously breathing preterm infants with RDS. In conclusion, MIST is gentle, safe, feasible, and effective in preterm infants, and is widely used for surfactant administration with noninvasive respiratory support by neonatologists. However, further studies are needed to resolve uncertainties in the MIST method, including infant selection, optimal surfactant dosage and administration method, and need for sedation. PMID- 29042871 TI - Application of array comparative genomic hybridization in Korean children under 6 years old with global developmental delay. AB - PURPOSE: Recent advancements in molecular techniques have greatly contributed to the discovery of genetic causes of unexplained developmental delay. Here, we describe the results of array comparative genomic hybridization (CGH) and the clinical features of 27 patients with global developmental delay. METHODS: We included 27 children who fulfilled the following criteria: Korean children under 6 years with global developmental delay; children who had at least one or more physical or neurological problem other than global developmental delay; and patients in whom both array CGH and G-banded karyotyping tests were performed. RESULTS: Fifteen male and 12 female patients with a mean age of 29.3+/-17.6 months were included. The most common physical and neurological abnormalities were facial dysmorphism (n=16), epilepsy (n=7), and hypotonia (n=7). Pathogenic copy number variation results were observed in 4 patients (14.8%): 18.73 Mb dup(2)(p24.2p25.3) and 1.62 Mb del(20p13) (patient 1); 22.31 Mb dup(2) (p22.3p25.1) and 4.01 Mb dup(2)(p21p22.1) (patient 2); 12.08 Mb del(4)(q22.1q24) (patient 3); and 1.19 Mb del(1)(q21.1) (patient 4). One patient (3.7%) displayed a variant of uncertain significance. Four patients (14.8%) displayed discordance between G-banded karyotyping and array CGH results. Among patients with normal array CGH results, 4 (16%) revealed brain anomalies such as schizencephaly and hydranencephaly. One patient was diagnosed with Rett syndrome and one with Mobius syndrome. CONCLUSION: As chromosomal microarray can elucidate the cause of previously unexplained developmental delay, it should be considered as a first tier cytogenetic diagnostic test for children with unexplained developmental delay. PMID- 29042872 TI - Accuracy of maximal expiratory flow-volume curve curvilinearity and fractional exhaled nitric oxide for detection of children with atopic asthma. AB - PURPOSE: Airway pathology in children with atopic asthma can be reflected by the concave shape of the maximal expiratory flow-volume (MEFV) curve and high fractional exhaled nitric oxide (FeNO) values. We evaluated the capacity of the curvilinearity of the MEFV curve, FeNO, and their combination to distinguish subjects with atopic asthma from healthy individuals. METHODS: FeNO and angle beta, which characterizes the general configuration of the MEFV curve, were determined in 119 steroid-naive individuals with atopic asthma aged 8 to 16 years, and in 92 age-matched healthy controls. Receiver operating characteristic (ROC) curve analyses were performed to determine the cutoff points of FeNO and angle beta that provided the best combination of sensitivity and specificity for asthma detection. RESULTS: Asthmatic patients had a significantly smaller angle beta and higher FeNO compared with healthy controls (both, P<0.001). For asthma detection, the best cutoff values of angle beta and FeNO were observed at 189.3 degrees and 22 parts per billion, respectively. The area under the ROC curve for the combination of angle beta and FeNO improved to 0.91 (95% confidence interval [CI], 0.87-0.95) from 0.80 (95% CI, 0.75-0.86; P<0.001) for angle beta alone and 0.86 (95% CI, 0.82-0.91; P=0.002) for FeNO alone. In addition, the combination enhanced sensitivity with no significant decrease in specificity. CONCLUSION: These data suggest that the combined use of the curvilinearity of the MEFV curve and FeNO is a useful tool to differentiate between children with and without atopic asthma. PMID- 29042873 TI - Comparison of cytokine expression profiles in infants with a rhinovirus induced lower respiratory tract infection with or without wheezing: a comparison with respiratory syncytial virus. AB - PURPOSE: The aim of this study was to evaluate whether infants with rhinovirus (RV) infection-induced wheezing and those with respiratory syncytial virus (RSV) infection-induced wheezing have different cytokine profiles in the acute stage. METHODS: Of the infants with lower respiratory tract infection (LRTI) between September 2011 and May 2012, 88 were confirmed using reverse transcription polymerase chain reaction and hospitalized. Systemic interferon-gamma (IFN gamma), interleukin (IL)-2, IL-12, IL-4, IL-5, IL-13, and Treg-type cytokine (IL 10) responses were examined with multiplex assay using acute phase serum samples. RESULTS: Of the 88 patients, 38 had an RV infection (RV group) and 50 had an RSV infection (RSV group). In the RV group, the IFN-gamma and IL-10 concentrations were higher in the patients with than in the patients without wheezing (P=0.022 and P=0.007, respectively). In the RSV group, the differences in IFN-gamma and IL 10 concentrations did not reach statistical significance between the patients with and the patients without wheezing (P=0.105 and P=0.965, respectively). The IFN-gamma and IL-10 concentrations were not significantly different between the RV group with wheezing and the RSV group with wheezing (P=0.155 and P=0.801, respectively), in contrast to the significant difference between the RV group without wheezing and the RSV group without wheezing (P=0.019 and P=0.035, respectively). CONCLUSION: In comparison with RSV-induced LRTI, RV-induced LRTI combined with wheezing showed similar IFN-gamma and IL-10 levels, which may have an important regulatory function. PMID- 29042874 TI - Serum neuron specific enolase is increased in pediatric acute encephalitis syndrome. AB - PURPOSE: This study aimed to investigate whether serum neuron-specific enolase (NSE) was expressed in acute encephalitis syndrome (AES) that causes neuronal damage in children. METHODS: This prospective observational study was conducted in the pediatric neurology ward of Soetomo Hospital. Cases of AES with ages ranging from 1 month to 12 years were included. Cases that were categorized as simple and complex febrile seizures constituted the non-AES group. Blood was collected for the measurement of NSE within 24 hours of hemodynamic stabilization. The median NSE values of both groups were compared by using the Mann-Whitney U test. All statistical analyses were performed with SPSS version 12 for Windows. RESULTS: In the study period, 30 patients were enrolled. Glasgow Coma Scale mostly decreased in the AES group by about 40% in the level <=8. All patients in the AES group suffered from status epilepticus and 46.67% of them had body temperature >40C. Most of the cases in the AES group had longer duration of stay in the hospital. The median serum NSE level in the AES group was 157.86 ng/mL, and this value was significantly higher than that of the non-AES group (10.96 ng/mL; P<0.05). CONCLUSION: AES cases showed higher levels of serum NSE. These results indicate that serum NSE is a good indicator of neuronal brain injury. PMID- 29042875 TI - Current Challenges and Future Opportunities for Child and Adolescent Psychiatry in Japan. AB - Japan has been facing a serious shortfall of child and adolescent psychiatric workforce relative to increasing service needs. Likely because of a combination of limited workforce supply and limited trust or perception of effectiveness, mental health services are under-utilized by the educational and child welfare systems. Child and adolescent psychiatry (CAP) has not been a formally established specialty in Japan. The lack of basic structure in the specialty most likely contributes to a lack of training facilities, limited exposure to and interest in the specialty, and hence an inadequate workforce. To date, there exists no standardized training program for CAP in Japan and each training hospital determines its own teaching curriculum and training content. Clinical experience in CAP varies greatly among hospitals. To solve current problems in child and adolescent psychiatry in Japan, we advocate for the development and establishment of a more standardized child and adolescent psychiatry training system that is akin to what exists in the US and that teaches and evaluates according to specific competencies. Through standardizing care and education and ultimately improving workforce, the quality of mental health services can be raised. The tragic and costly consequences of unidentified and untreated mental illness in youth can be avoided by taking timely evidence based actions in partnership with others. PMID- 29042876 TI - Does Emotional Intelligence Fluctuate within Clinical Depressive Condition? AB - OBJECTIVE: Emotional intelligence (EI) is regarded an important factor related to psychiatric disorder. Most of previous studies of EI and depression only dealt with EI in present of depressive symptoms. Our study investigated EI both before and after remission of depression and to identify which component of EI is changeable by depression condition. METHODS: EI was evaluated for 23 depression patients and 44 normal control participants. Adult Emotional Quotient Test (AEQT) was used as subjective EI measure and Emotional Literacy Test (ELT) was used as objective EI measure to both groups. RESULTS: During the initial evaluation of the subjective EI, patient group reported significantly lower scores than control group on all AEQT sub-domains except 'empathy'. However, group difference on 'utilization' disappeared after the remission evaluation. There was no significant difference within the objective EI measure. CONCLUSION: According to the result of the study, EI could be sub-divided into trait-dependent EI and state-dependent EI. Further implication, strength and limitation were discussed. PMID- 29042877 TI - Impaired Social and Role Function in Ultra-High Risk for Psychosis and First Episode Schizophrenia: Its Relations with Negative Symptoms. AB - OBJECTIVE: Psychosocial dysfunction was a nettlesome problem of schizophrenia even in their prodromal phase as well as in their first-episode. In addition, its relations with psychopathology were not determined. The aim of the present study was to examine whether the social and role function impairment was found in ultra high risk for psychosis (UHR) individuals as well as first-episode schizophrenia patients and to explore its relations with psychopathology. METHODS: Thirty-seven normal controls, 63 UHR participants and 28 young, first-episode schizophrenia patients were recruited. Psychosocial functioning was examined by using Global function: Social and Role scale. Psychopathologies of positive, negative and depressive symptom were also measured. RESULTS: Social and role functioning in UHR were compromised at the equivalent level of those of first-episode schizophrenia patients. Multiple linear regression analysis revealed that social and role dysfunction was associated with negative symptoms in each UHR and first episode schizophrenia group. CONCLUSION: These findings suggest that the significant impairment of social and role function may be appeared before the active psychosis onset at the level of extent to those of first-episode schizophrenia patients. The psychosocial intervention strategy especially targeting the negative symptoms should be developed and provided to individuals from their prepsychotic stage of schizophrenia. PMID- 29042878 TI - The Evaluation Acute Traumatic Stress Level in Close Relatives of Stroke Patients. AB - OBJECTIVE: Stroke is the second most common cause of death and the leading cause of adult disability. Both stroke patients and their family can therefore experience increased traumatic stress level. METHODS: The participants are close relatives of patients (n=65) who had a first time stroke (CRPWS) hospitalized. A control group (CG) (n=61), who had no history of chronic illness in their family and had at least one traumatic life event experience. The National Institutes of Health Stroke Scale, Modified Rankin Scale, Personal Information Form, Life Events Checklist, Traumatic Stress Symptom Scale, and Multidimensional Scale of Perceived Social Support, were used in the study. RESULTS: We found no significant association between NIHSS and MRS of patients and traumatic stress level of the family member. The traumatic stress level was significantly higher in the CRPWS group than in the CG group. Traumatic stress level was higher in women than men and was not associated with perceived social support in the CRPWS group. CONCLUSION: The traumatic stress level of the relatives was not associated with the clinical features of the stroke patients. In the early phase, after the diagnosis of stroke, psychological support may be important to prevent CRPWS from PTSD. PMID- 29042879 TI - Post-Traumatic Stress Disorder, Depression and Anxiety among North Korean Refugees: A Meta-Analysis. AB - OBJECTIVE: Post-traumatic stress disorder is common among North Korean refugees who have fled their country for economic, financial and humanitarian reasons. Co morbid depression and anxiety are also common among North Korean refugees, due to the difficulties they have faced within their country and during their escape journey. Depression and anxiety complicate treatment for post-traumatic stress disorder, and lead to poorer outcomes. Thus, the aim of the present study was to provide a meta-analysis of studies investigating post-traumatic stress disorder, depression, and anxiety among North Korean refugees. METHODS: Selected articles were published in English, and included measures of post-traumatic stress, and/or depression and anxiety. 10 studies were included in the depression meta-analysis, and 6 in the anxiety meta-analysis. RESULTS: A random-effects model revealed strong, significant associations between post-traumatic stress and depression, r=0.63, 95% CI (0.51, 0.72), p<0.001, z=8.33, and anxiety, r=0.51, 95% CI (0.36, 0.63), p<0.001, z=6.07. The relationships between post-traumatic stress, depression and anxiety were higher among adults and those with more than five years outside of North Korea. CONCLUSION: Depression appears to be an important treatment focus for North Korean refugees with post-traumatic stress. PMID- 29042880 TI - Initial Psychometric Properties of the Korean Altman Self-Rating Mania Scale: Preliminary Validation Study in a Non-Clinical Sample. AB - OBJECTIVE: We aimed to examine the reliability and validity of the Korean Altman Self-Rating Mania Scale (K-ASRM) in a large sample of Korean non-clinical undergraduates. METHODS: Participants (n=1,091) filled out the K-ASRM with other self-report questionnaires assessing bipolarity, mood symptoms and affect. Reliability test, exploratory factor analysis and correlation analyses were conducted to examine its psychometric properties. RESULTS: The reliability of the K-ASRM was adequate (Cronbach's alpha=0.73, item-to-total correlation 0.53-0.78) and the exploratory factor analysis yielded one factor of mania. The K-ASRM demonstrated significant associations with measures of hypomanic personality (r=0.33), lifetime history of hypomanic symptoms (r=0.23). Also, the K-ASRM was significantly correlated with positive affect (r=0.53), negative affect (r=-0.17) and depressive symptoms (r=-0.35). CONCLUSION: These results suggest preliminary possibility that the K-ASRM can be utilized as self-rating tool for mania in Korea as well as future directions for further validation. PMID- 29042881 TI - Clinical Validation of the Psychotic Depression Assessment Scale, Hamilton Depression Rating Scale-6, and Brief Psychiatric Rating Scale-5: Results from the Clinical Research Center for Depression Study. AB - OBJECTIVE: The aim of this study was to validate the psychotic depression assessment scale (PDAS), which includes the six-item melancholia subscale from the Hamilton depression rating scale (HAMD-6) and the five-item psychosis subscale from the brief psychiatric rating scale (BPRS-5). Data from the Clinical Research Center for Depression (CRESCEND) study, which is a 52-week naturalistic trial, were analyzed. METHODS: Fifty-two patients with psychotic depression from the CRESCEND study met our inclusion criteria. The patients underwent the following psychometric assessments: the PDAS, including HAMD-6 and BPRS-5, the clinical global impression scales, the HAMD, the positive symptom subscale, and the negative symptom subscale. Assessments were performed at the baseline and then at weeks 1, 2, 4, 8, 12, 24, and 52. Spearman correlation analyses were used to assess the clinical validity and responsiveness of the PDAS. RESULTS: The clinical validity and responsiveness of the PDAS, including HAMD-6 and BPRS-5, were acceptable, with the exception of the clinical responsiveness of the PDAS for positive symptoms and the clinical responsiveness of BPRS-5 for negative symptoms. CONCLUSION: The clinical relevance of the PDAS has been confirmed and this clinical validation will enhance its clinical utility and availability. PMID- 29042882 TI - Validation of the Korean Depressive Symptom Inventory-Suicidality Subscale. AB - OBJECTIVE: The present study aimed to validate a Korean version of the self report Depressive Symptom Inventory-Suicidality Subscale (DSI-SS). METHODS: 553 South Korean undergraduate students (aged 18-34 years, 74.8% females) completed questionnaires. Participants completed Korean versions of the self-report Depressive Symptom Inventory-Suicidality Subscale (DSI-SS), Beck Depression Inventory-II (BDI-II), Insomnia Severity Index (ISI), Beck Scale for Suicide Ideation (BSS), and a measure of suicide-related symptom history. RESULTS: Results indicated that the DSI-SS demonstrated excellent internal consistency (alpha=0.93) and strong convergent validity with the BDI (r=0.57, p<0.01), ISI (r=0.27, p<0.01), and BSS (r=0.70, p<0.01). DSI-SS scores also significantly differentiated between those reporting a history of suicide attempts compared to non-suicide attempters [t (38.80)=-3.28, p<0.05]. CONCLUSION: Given the brevity of this measure, and evidence for its validity, the Korean version of the DSI-SS may be particularly promising for clinical and empirical use as a screening tool among South Korean undergraduates. PMID- 29042883 TI - Feasibility of the Korean version of the Bipolar Depression Rating Scale in Adolescents with Early-Onset Bipolar Disorder. AB - OBJECTIVE: This study explores the feasibility and psychometric properties of the Korean version of the Bipolar Depression Rating Scale (BDRS) in adolescents with Early-onset bipolar disorders. METHODS: Fifty-three participants (aged 13-18) with early-onset bipolar disorders (40 depressed and 18 euthymic, 5 patients were assessed at depressed state and reassessed after remission) were recruited. All participants were assessed using the BDRS, the Hamilton Depression Rating Scale (HAM-D), the Montgomery-Asperg Depression Rating Scale (MADRS), the Young Mania Rating Scale (YMRS), and the Modified Overt Aggression scale (MOAS). RESULTS: BDRS exhibited good internal validity and significant correlations with the HAM-D and the MADRS. In item to scale correlations, all items on the BDRS were significantly correlated with the BDRS total scores except for 'increased motor drive' and 'increased speech', 'depressed mood' and 'worthlessness' showed the highest mean scores and endorsement rates. BDRS score of the depressed group was significantly higher compared with the euthymic group. Three factors (i.e., psychosomatic, mood, and mixed) were identified in the principal component analysis and hierarchical cluster analysis of the BDRS. CONCLUSION: In this study, we report that the Korean version of BDRS is a feasible and reliable tool for the assessment of depression in adolescents with Early-onset bipolar disorders. PMID- 29042884 TI - Reliability and Validity of the Korean Version of the General-Food Craving Questionnaire-Trait for Children. AB - OBJECTIVE: The General-Food Craving Questionnaire-Trait (G-FCQ-T) is a validated, assessment scale for food craving. The aim of this study was to measure its reliability and validity for Korean children. METHODS: A total of 172 children (94 boys and 78 girls) were selected to fill out a set of questionnaires, including the G-FCQ-T, the Children's version of the Dutch Eating Behavior Questionnaire (DEBQ-C), and the Three-Factor Eating Questionnaire (TFEQ) in the Korean language. RESULTS: The internal consistency (Cronbach's alpha=0.933) and test-retest reliability (r=0.653) were satisfactory. The G-FCQ-T showed a significantly positive correlation with the DEBQ-C (r=0.560) and the TFEQ (r=0.397). The optimum cutoff score of the G-FCQ-T set by Receiver Operating Characteristics analysis was 51, with sensitivity and specificity of 0.833 and 0.825, respectively, for children. CONCLUSION: The G-FCQ-T showed good reliability and validity for assessing food craving for children and could become a practial instrument in clinical and research settings. PMID- 29042885 TI - More Resilience in Males with Probable Bipolar Depression than Probable Unipolar Depression among Korean Conscripts. AB - OBJECTIVE: This study investigated whether the resilience of males with probable bipolar depression (PBD) can be strengthened and compared it to that of males with probable unipolar depression (PUD). METHODS: Prospective data for 198 participants (PBD: 66, PUD: 66, normal control: 66) were analyzed. The participants' resilience, bipolarity and severity of depressive symptoms were evaluated at baseline and after 5 weeks. Analysis of variance (ANOVA) and repeated measure ANOVA was performed for comparing resilience between three groups through a basic military training. RESULTS: The PBD group demonstrated more resilience than the PUD group at baseline. Participants with PBD became significantly more resilient than participants with PUD after 5 weeks (p<0.01, F=6.967, eta2p=0.052). CONCLUSION: The study indicates that interventions that strengthen resilience need to be developed for males with PBD and that such interventions are more effective for males with PBD than PUD. PMID- 29042886 TI - Effects of Group Cognitive-Behavioral Therapy in Young Patients in the Early Stage of Psychosis. AB - OBJECTIVE: To develop a model of group cognitive-behavioral therapy (CBT) for Korean patients with early psychosis. METHODS: The group CBT utilized in the present study consisted of metacognitive training, cognitive restructuring, and lifestyle managements. The Subjective Well-being Under Neuroleptics (SWN-K), Ambiguous Intentions Hostility Questionnaire (AIHQ), Drug Attitude Inventory (DAI), Beck Depression Inventory (BDI), Perceived Stress Scale (PSS), and Clinical Global Impression (CGI) were administered prior to and after CBT sessions. The participants were categorized into two groups according to the median duration of untreated psychosis (DUP; 4 months). RESULTS: A total of 34 patients were included in this analysis. From pre- to post-therapy, there were significant increases in the SWN-K and DAI scores and significant decreases in the hostility subscale of the AIHQ, PSS, and CGI scores. Significant time * DUP interaction effects were observed for the SWN-K, DAI, and BDI scores, such that there were significant changes in patients with a short DUP but not in those with a long DUP. CONCLUSION: The group CBT program had a positive effect on subjective wellbeing, attitude toward treatment, perceived stress, and suspiciousness of young Korean patients with early psychosis. These effects were particularly significant in patients with a short DUP. PMID- 29042887 TI - The Prevalence of Depression among Patients with the Top Ten Most Common Cancers in South Korea. AB - OBJECTIVE: Among the various psychiatric disorders, depression is a common comorbid condition in cancer patients. Due to the distinct and diverse nature of cancer, the prevalence of depression may be assumed to be affected by differences in primary cancer sites. In this study, we explored the prevalence rates of depression among the ten most prevalent cancers in South Korea using a national patient sample. METHODS: This was a 1-year cross-sectional study using a national patient sample provided by the South Korean National Health Insurance in 2011. We selected all patients who had received ICD-10 codes of the 10 most prevalent cancers and major depressive disorder. Afterwards, the cancer and depression groups were merged and analyzed. RESULTS: The MDD prevalence rate was highest in lung cancer (11.0%), followed by non-Hodgkin's lymphoma (9.2%), prostate (9.1%), bladder (8.8%), breast (7.8%), cervix (7.8%), colorectal (7.7%), stomach (6.9%), liver (6.5%), and thyroid cancer (5.6%). Within all cancer groups, patients with a MDD diagnosis were significantly older (p<0.05) than non-MDD patients. Colorectal, stomach, and thyroid cancer displayed a higher female proportion in the MDD group than the non-MDD group. In the subgroup analysis, the prevalence rate differed by age and sex. CONCLUSION: The prevalence of depression varied according to cancer types. Patients with lung cancer were the most prone to experience depression. Because clinical and psychological factors may influence MDD prevalence, these factors will need to be studied more closely in the future. PMID- 29042888 TI - Cognitive Stimulation as a Therapeutic Modality for Dementia: A Meta-Analysis. AB - OBJECTIVE: Although cognitive stimulation (CS) is one of the most popular non pharmacological interventions for people with dementia, its efficacy is still debatable. We performed a meta-analysis of randomized controlled trials (RCTs) on the efficacy of CS in people with dementia. METHODS: Data sources were identified by searching PubMed, MEDLINE, Embase, psychINFO, and Cochrane Reviews Library. A total of 7,354 articles were identified, and of these, 30 RCTs were selected based on the selection criteria. Of these 30 RCTs, 14 were finally included in our meta-analysis [731 participants with dementia; 412 received CS (CS group) and 319 received usual care (control group)]. RESULTS: We found that the people with dementia had a moderate benefit from CS. The mean difference between the CS and control groups was 2.21 [95% CI (0.93, 3.49), Z=3.38, p=0.00007] in the Alzheimer's Disease Assessment Scale-Cognition and 1.41 [95% CI (0.98, 1.84), Z=6.39, p<0.00001] in the Mini-Mental State Examination. CS also improved quality of life in people with dementia [95% CI (0.72, 3.38), Z=3.02, p=0.003]. CONCLUSION: CS is effective for improving cognition and quality of life in people with dementia; however, its effects were small to moderate. PMID- 29042889 TI - Screening Ability of Subjective Memory Complaints, Informant-Reports for Cognitive Decline, and Their Combination in Memory Clinic Setting. AB - OBJECTIVE: This study aimed to compare the accuracy of subjective memory complaints, informant-reports for cognitive declines, and their combination for screening cognitive disorders in memory clinic setting. METHODS: One-hundred thirtytwo cognitively normal (CN), 136 mild cognitive impairment (MCI), and 546 dementia who visited the memory clinic in the Seoul National University Hospital underwent standardized clinical evaluation and comprehensive neuropsychological assessment. The Subjective Memory Complaints Questionnaire (SMCQ) and the Seoul Informant Report Questionnaire for Dementia (SIRQD) were used to assess subjective memory complaints and informant-reports for cognitive declines, respectively. RESULTS: Both SMCQ and SIRQD showed significant screening ability for MCI, dementia, and overall cognitive disorder (CDall: MCI plus dementia) (screening accuracy: 60.1-94.6%). The combination of SMCQ and SIRQD (SMCQ+SIRQD) was found to have significantly better screening accuracy compared to SMCQ alone for any cognitive disorders. SMCQ+SIRQD also significantly improved screening accuracy of SIRQD alone for MCI and CDall, but not for dementia. CONCLUSION: Our findings suggest that the combined information of both subjective memory complaints and informant-reports for cognitive declines can improve MCI screening by each individual information, while such combination appears not better than informant-reports in regard of dementia screening. PMID- 29042890 TI - Effects of Psychotropic Drugs on Seizure Threshold during Electroconvulsive Therapy. AB - OBJECTIVE: To analyze the relationship between seizure threshold (ST) and psychotropic drugs in patients treated with ECT. METHODS: We examined clinical data from 43 patients. ST was titrated at each treatment session. We examined associations between ST and psychotropic drugs using multivariate correlation analyses. Data are presented as initial ST, the difference in ST between the first and 10th sessions (DeltaST10th), and the mean difference in ST between the first and last sessions (mean DeltaSTlast). RESULTS: Multivariate regression analyses showed associations between initial ST and the total chlorpromazine equivalent dose of antipsychotics (beta=0.363, p<0.05). The total fluoxetine equivalent dose of antidepressants was associated with DeltaST10th (beta=0.486, p<0.01) and mean DeltaSTlast (beta=0.472, p<0.01). CONCLUSION: Our study elucidated possible effects of psychotropic drugs on ST shifts. Larger doses of antipsychotics were associated with higher initial ST, whereas higher doses of antidepressants were associated with stronger shifts in ST. PMID- 29042891 TI - Differential Effects of Obesity on Obstructive Sleep Apnea Syndrome according to Age. AB - OBJECTIVE: To evaluate the effect of obesity on obstructive sleep apnea syndrome (OSAS) by age in relation to anthropometric measurements. METHODS: The medical records of 1,110 participants diagnosed with OSAS were analyzed according to age. All participants underwent nocturnal polysomnography and had their body mass index, waist circumference, neck circumference (NC), and waist-to-hip ratio measured. RESULTS: According to the multiple linear regression analysis model for the natural logarithm of the apnea-hypopnea index treating all four anthropometric measurements and gender as covariates, the final stepwise model accounted for an increasing percentage of the variability in the severity of OSAS as a function of age: 7.0, 9.1, 14.5, and 25.6% for those aged <30, 30-39, 40-49, and 50-59 yrs, respectively. It accounted for a decreased percentage among those 60-69 (20.3%) and 70 yrs or older (3.9%). The correlation between NC and the severity of OSAS linearly increased as a function of age for those aged 30-59 yrs, peaked among those in their 60s, and dramatically decreased thereafter. CONCLUSION: Middle-aged patients with OSAS were more likely to be obese, as measured by anthropometric measurements, than were younger or older OSAS patients. In particular, the predictive value of NC was significantly lower for younger and older OSAS patients. PMID- 29042892 TI - Modest Improvement of Untreated Severe Sleep-Disordered Breathing in the Middle Aged and Elderly. AB - OBJECTIVE: It has been reported that untreated sleep-disordered breathing (SDB) deteriorates over time, however this remains contentious. The aim of the present study is to evaluate the clinical course of SDB in middle-aged and older SDB patients, and to identify how relevant factors contribute to the change in SDB severity. METHODS: Baseline and follow-up polysomnographic data of 56 untreated SDB patients (mean age, 61.2+/-5.71) were obtained retrospectively and the mean interval was 62.4+/-22.0 months. Subgroup analysis was performed based on the baseline severity, and the factors associated with the course of SDB were analyzed. RESULTS: At the baseline, 13 subjects were simple snorers, 15 had mild to moderate SDB, and 28 were severe SDB patients. While there was no significant change in apnea-hypopnea index (AHI) as a whole, subgroup analysis showed decrease of AHI in severe SDB patients (43.9+/-10.6 to 35.6+/-20.0, p=0.009). The change in supine time percent and baseline AHI were associated with the change in AHI (beta=0.387, p=0.003; beta=-0.272, p=0.037). CONCLUSION: Untreated SDB did not deteriorate over time with modest improvement in severe SDB. A proportion of severe SDB patients might expect decrease in SDB severity irrespective of changes in sleep position or body weight. PMID- 29042893 TI - Periodic Limb Movements in Sleep is Associated with Increased Mortality. AB - OBJECTIVE: To elucidate the association between periodic limb movements in sleep (PLMS) and mortality. METHODS: Nocturnal polysomnographic recordings of 1,344 subjects obtained from 1995 to 2008 were reviewed. The subjects were divided into four groups based on PLMS and insomnia: reference group (PLMS<=5), insomnia group (PLMS<=5 with insomnia symptoms), 515 group. We searched each subject's Identification Number in the death records from the Statistics of Korea, the national bureau of statistics, to determine deaths in the cohort that occurred prior to December, 2013. Cox-proportional hazard regression and Kaplan-Meier survival curve analyses were used to compare mortality among the four groups. RESULTS: Hazard ratios (HRs) in the 515 groups were significantly higher than that in the reference group before adjusting for age and gender [HR, 3.37; 95% confidence interval (CI), 1.73 6.55; p<0.001; HR, 5.77; 95% CI, 3.24-10.29; p<0.001]. Only the PLMS>15 group had a higher mortality rate than that in the reference group after adjusting for age, gender, and sleep efficiency (HR, 1.99; 95% CI, 1.06-2.21; p=0.033). CONCLUSION: These results suggest that PLMS may be associated with increased mortality. PMID- 29042894 TI - Genetic Association of the PERIOD3 (Per3) Clock Gene with Bipolar Disorder. AB - OBJECTIVE: Circadian rhythms have been linked to psychiatric disorders such as Depression and Bipolar Disorder (BD). Given previous evidences of sleep/circadian disturbances as well as the genetic susceptibility for BD, we decided to investigate the possible link between the PERIOD3 (Per3) circadian gene and BD. METHODS: This is a genetic association case (BD) vs. control study of the Per3 gene. We further subdivided our BD sample into "good sleepers" (PSQI <=5) and "poor sleepers" (PSQI>5) according to the Pittsburgh Sleep Quality Index (PSQI) global score, and then we assessed genetic association of the Per3 gene with sleep quality in the BD group. RESULTS: There were 209 cases and 213 controls in our sample. The GT genotype of the SNP rs707467 significantly associated with BD (chi2=8.80; p-value=0.01; adjusted residual=+/-2.6). We also found significant association of the SNP rs10462020 allele T with BD (chi2=5.81; p-value=0.01) as well as the genotype TT (chi2= 6.01; p-value=0.04; adjusted residual=+/-2.4). CONCLUSION: In this study we demonstrated evidences of genetic association between the Per3 gene and BD. The results of association between the Per3 gene and BD in our sample may bring additional evidence to the former findings of association between the Per3 gene and BD. PMID- 29042895 TI - No Association between the Polymorphism rs6943555 in the AUTS2 Gene and Personality Traits in Japanese University Students. AB - OBJECTIVE: The autism susceptibility candidate 2 (AUTS2) gene has been implicated in multiple neurological disorders. Several recent studies have revealed that the polymorphism rs6943555 in the AUTS2 gene is broadly associated with human mental function and behavior. Therefore, in the present study we investigated whether the polymorphism rs6943555 is associated with human personality traits in Japanese university students. In addition, our previous study reported that the AUTS2 rs6943555-rs9886351 haplotype is associated with alcohol dependence. As a preliminary analysis, we also examined whether the AUTS2 haplotypes are related to personality traits. METHODS: After written informed consent had been obtained from the participants, two AUTS2 polymorphisms were analyzed, and personality was assessed using the Temperament and Character Inventory (TCI) in 190 university students. In addition, in order to exclude the influence of the results for students with mental health problems, we gave the Patient Health Questionnaire-9 (PHQ-9) to all subjects. RESULTS: In all the subjects, there was a main effect of the polymorphism rs6943555 genotype on reward dependence (p=0.038) and cooperativeness (p=0.031), although the significance was lost on Bonferroni correction. Similarly, on analysis that excluded the subjects with PHQ-9 scores>=10, no significant association with any TCI dimension score among the rs6943555 genotypes was seen. There was no effect of the rs6943555-rs9886351 haplotypes on the TCI dimension scores. CONCLUSION: This study suggests that the polymorphism AUTS2 rs6943555 is not associated with personality traits. Further large-scale studies with more subjects using other self-report questionnaires are needed. PMID- 29042896 TI - Genome-Wide Supported Risk Variants in MIR137, CACNA1C, CSMD1, DRD2, and GRM3 Contribute to Schizophrenia Susceptibility in Pakistani Population. AB - OBJECTIVE: Schizophrenia is a chronic neuropsychiatric disease afflicting around 1.1% of the population worldwide. Recently, MIR137, CACNA1C, CSMD1, DRD2, and GRM3 have been reported as the most robustly emerging candidates involved in the etiology of schizophrenia. In this case control study, we performed an association analysis of rs1625579 (MIR137), rs1006737, rs4765905 (CACNA1C), rs10503253 (CSMD1), rs1076560 (DRD2), rs12704290, rs6465084, and rs148754219 (GRM3) in Pakistani population. METHODS: Schizophrenia was diagnosed on the basis of the Diagnostic and Statistical Manual of Mental Disorders 4th ed (DSM-IV). Detailed clinical information, family history of all patients and healthy controls were collected. RFLP based case control association study was performed in a Pakistani cohort of 508 schizophrenia patients and 300 healthy control subjects. Alleles and genotype frequencies were calculated using SPSS. RESULTS: A significant difference in the genotype and allele frequencies for rs4765905, rs1076560 and rs6465084 were found between the patients and controls (p=0.000). CONCLUSION: This study provides substantial evidence supporting the role of CACNA1C, GRM3 and DRD2 as schizophrenia susceptibility genes in Pakistani population. PMID- 29042897 TI - Association between GABA3 Gene Polymorphisms and Attention Deficit Hyperactivity Disorder in Korean Children. AB - OBJECTIVE: Attention deficit hyperactivity disorder (ADHD) is common disorder of the school-age population. ADHD is familial and genetic studies estimate heritability at 80-90%. The aim of the present study was to investigate the association between the genetic type and alleles for gamma-aminobutyric acid receptor subunit beta-3 (GABA3) gene in Korean children with ADHD. METHODS: The sample consisted of 180 ADHD children and 159 control children. We diagnosed ADHD according to DSM-IV. ADHD symptoms were evaluated with Conners' Parent Rating Scales and Dupaul Parent ADHD Rating Scales. Blood samples were taken from the 339 subjects, DNA was extracted from blood lymphocytes, and PCR was performed for GABA3 rs2081648, rs1426217 and rs981778 Polymorphism. Alleles and genotype frequencies were compared using the chi-square test. We compared the allele and genotype frequencies of GABA3 gene polymorphism in the ADHD and control groups. RESULTS: This study showed that there was a significant correlation among the frequencies of the rs2081648 (OR=0.71, 95% CI=0.51-0.98, p=0.040) of alleles of MAO, but the final conclusions are not definite. Follow up studies with larger patient or pure subgroups are expected. CONCLUSION: These results suggested that GABA3 might be related to ADHD symptoms. PMID- 29042898 TI - Prediction of Treatment Response to Donepezil using Automated Hippocampal Subfields Volumes Segmentation in Patients with Mild Alzheimer's Disease. AB - Previous studies reported some relationships between donepezil treatment and hippocampus in Alzheimer's disease (AD). However, due to methodological limitations, their close relationships remain unclear. The aim of this study is to predict treatment response to donepezil by utilizing the automated segmentation of hippocampal subfields volumes (ASHS) in AD. Sixty four AD patients were prescribed with donepezil and were followed up for 24 weeks. Cognitive function was measured to assess whether there was a response from the donepezil treatment. ASHS was implemented on non-responder (NR) and responder (TR) groups, and receiver operator characteristic (ROC) analysis was conducted to evaluate the sensitivity, specificity, and accuracy of hippocampal subfields in predicting response to donepezil. The left total hippocampus and the CA1 area of the NR were significantly smaller than those of the TR group. The ROC curve analysis showed the left CA1 volumes showed highest area under curve (AUC) of 0.85 with a sensitivity of 88.0%, a specificity of 74.0% in predicting treatment response to donepezil treatment. We expect that hippocampal subfields volume measurements that predict treatment responses to current AD drugs will enable more evidence-based, individualized prescription of medications that will lead to more favorable treatment outcomes. PMID- 29042899 TI - Evidence for Hypothalamus-Pituitary-Adrenal Axis and Immune Alterations at Prodrome of Psychosis in Males. AB - We aimed to investigate the inflammatory substrate in psychosis by evaluating both the Hypothalamus-Pituitary-Adrenal axis function and immune state at prodrome. This involved the recruitment of Ultra High Risk (UHR) of Psychosis subjects, Healthy Controls (HC) and patients with established Schizophrenia (CHRON). Serum cortisol at 3 different times throughout the day was measured. The Dexamethasone Suppression Test was performed plus 12 circulating cytokines were measured. The UHR subjects presented increased IL-4 levels compared with both the HC and CHRON patients. In contrast the UHR differed only from the CHRON group regarding the endocrine parameters. In conclusion, IL-4 appears to play a key role at prodrome. PMID- 29042900 TI - Regional Beta Index of Electroencephalography May Differentiate Alzheimer's Disease from Depression. AB - Differentiating early Alzheimer's disease (AD) from depression with cognitive impairment is challenging in the elderly. To develop a model for differentiating these two conditions using electroencephalography (EEG), we enrolled 11 patients with early probable AD and 11 age- and cognitive function-matched patients with major depressive disorder (MDD) and compared the EEG relative powers of 9 scalp regions. Compared to the MDD group, the AD group had a higher global theta relative power (p=0.021). In the MDD group, beta relative power was higher in the mid-central region than in the left or right central regions (p<0.01). The prediction model that included global theta relative power and regional beta index was able to discriminate AD from MDD (AUC=0.893, p=0.002). A combination of global theta relative power and intra-individual regional differences in beta may differentiate early AD from MDD with cognitive impairment. PMID- 29042902 TI - Unusual Case of Posterior Reversible Encephalopathy Syndrome in a Patient with Anti-glomerular Basement Membrane Antibody Glomerulonephritis: A Case Report and Review of the Literature. AB - Posterior reversible encephalopathy syndrome (PRES) is characterized by a clinical and radiological entity with the sudden onset of seizures, headache, altered consciousness, and visual disturbances in patients with the findings of reversible vasogenic subcortical edema without infarction. Hypertension, renal disease, and autoimmune disease are co-morbid conditions of PRES. Nevertheless, there have only been a few case reports of PRES in a patient with anti-glomerular basement membrane antibody glomerulonephritis (anti-GBM GN). This paper presents the possible first Korean case of a 36-year-old woman with the striking features of PRES. She presented with a sudden onset of visual blindness, headache, and seizure. The brain MRI images revealed hyperintense lesions in both the occipital and parietal lobes, which suggested vasogenic edema. Three months before this presentation, she was diagnosed with anti-GBM GN. Since then, she underwent immunosuppression with cyclophosphamide and steroid, and hemodialysis for renal failure with a treatment of anti-GBM GN. PMID- 29042901 TI - Vitamin D and Hypertension. AB - Vitamin D has the pleiotropic effects in multiple organ systems, and vitamin D deficiency was suggested to be associated with high blood pressure according to previous reports. Several interventional studies have examined the effect of vitamin D supplementation on high blood pressure patients, but the results have been inconsistent. In this article, we examined the literature that have proposed a mechanism involving vitamin D in the regulation of blood pressure and review previous observational and interventional studies that have shown the relationship between vitamin D and hypertension among various populations. PMID- 29042903 TI - Renal Tubular Acidosis in Patients with Primary Sjogren's Syndrome. AB - Primary Sjogren's syndrome (pSS) is characterized by lymphocytic infiltration of the exocrine glands resulting in decreased saliva and tear production. It uncommonly involves the kidneys in various forms, including tubulointerstitial nephritis, renal tubular acidosis, Fanconi syndrome, and rarely glomerulonephritis. Its clinical symptoms include muscle weakness, periodic paralysis, and bone pain due to metabolic acidosis and electrolyte imbalance. Herein, we describe the cases of two women with pSS whose presenting symptoms involve the kidneys. They had hypokalemia and normal anion gap metabolic acidosis due to distal renal tubular acidosis and positive anti-SS-A and anti-SS-B autoantibodies. Since one of them experienced femoral fracture due to osteomalacia secondary to renal tubular acidosis, an earlier diagnosis of pSS is important in preventing serious complications. PMID- 29042904 TI - Central Diabetes Insipidus Linked to Rathke's Cleft Cyst, Polyuria in a 17-year old Girl. AB - A 17-year-old girl presented with polyuria (7 L/day) and polydipsia for one year. Initial urine osmolality was 113mOsm/kg H2O. Following 6 h of fluid restriction, serum plasma osmolality reached 300mOsm/kg H2O, whereas urine osmolality was 108mOsm/kg H2O. Urine osmolality was increased by 427% from 108 to 557mOsm/kg after vasopressin challenge. The patient was diagnosed with central diabetes insipidus, possibly derived from the atypical occupation of a Rathke's cleft cyst at the pituitary stalk following magnetic resonance imaging with enhancement. She was discharged with desmopressin nasal spray (10 ug); urine output was maintained at 2-3 L/day, and urine osmolality was >300 mOsm/kg. Additional pituitary image studies and evaluation of hypopituitarism should be included in the differential diagnosis of patients with central diabetes insipidus. PMID- 29042905 TI - Photo-elicitation with adolescents in qualitative research: an example of its use in exploring family interactions in adolescent psychiatry. AB - BACKGROUND: Photo-elicitation is a method used increasingly often in qualitative health research, and its positive effect on the research process is well established today. Photo-elicitation appears to facilitate verbalization and insight and to improve relationships between the researcher and participants, thereby enriching the quality of the data collected. Nonetheless, it is barely used at all in the field of adolescent psychiatry. With the aim of exploring the potential of these methods for research with adolescents receiving psychiatric care, we conducted a qualitative photo-elicitation data collection study with this population, asking them about family interactions around food. METHODS: The data were collected from 15 adolescents and 17 parents during semi-structured interviews in which a photo taken by the adolescent served as the focus of discussion. Data were explored through inductive thematic analysis. RESULTS: Photo-elicitation played a threefold role in this study: (1) it induced the teens' interest, thought, and pleasure, (2) it played a mediating function during the interviews, and (3) it enabled family interactions to be viewed from the adolescent's perspective. Three themes concerning family interactions were found: (1) parent-child relationship patterns, (2) the functioning of the family group, and (3) the adolescent's individual relation with food, that is, the issue of the adolescent's autonomy. CONCLUSIONS: Photo-elicitation proved to be an innovative technique in qualitative research in the area of adolescent psychiatry, one that enriched the data and enabled the emergence of new themes in this field, related in particular to the process by which adolescents develop autonomy. PMID- 29042906 TI - Low mood in a sample of 5-12 year-old child psychiatric patients: a cross sectional study. AB - BACKGROUND: Not much is known about low mood and its associates in child psychiatric patients. In this study, we examined the prevalence of low mood, how it associates with disruptive behaviour, and affects clinician-rated global functioning in child psychiatric outpatients. METHODS: The study population consisted of 862 5-12 year-old child psychiatric patients. The study sample was a subsample of all 1251 patients attending a child psychiatric outpatient clinic at Helsinki University Hospital in 2013-2015 formed by excluding 4 year-old and 13 year-old patients and those with missing or incomplete data. The parent-rated Strengths and Difficulties Questionnaire, collected as part of the routine clinical baseline measure, was used as a measure of psychiatric symptoms. The diagnoses were set according to ICD-10 by the clinician in charge after an initial evaluation period. The Children's Global Assessment Scale (CGAS) score set by clinicians provided the measure of the patients' global functioning. All information for the study was collected from hospital registers. Associations between emotional symptoms and conduct problems/hyperactivity scores were examined using ordinal regression in univariate and multivariate models, controlling for age and sex. The independent samples T test was used to compare the CGAS values of patient groups with low/normal mood. RESULTS: In our sample, 512 children (59.4%) showed low mood. In multivariate ordinal regression analysis, low mood associated with conduct problems (OR 1.93, 95% CI 1.39-2.67), but no association was found between low mood and hyperactivity. Low mood was prevalent among children with oppositional defiant disorder or conduct disorder (51.8%). The global functioning score CGAS was lower among children with parent reported low mood (52.21) than among children with normal mood (54.62, p < 0.001). The same was true in the subgroup of patients with no depression diagnosis (54.85 vs. 52.82, p = 0.001). CONCLUSIONS: Low mood is prevalent in child psychiatric outpatients regardless of depression diagnosis and it has a negative effect on global functioning. Low mood and behavioural problems are often associated. It is important to pay attention to low mood in all child psychiatric patients. We recommend prevention measures and low-threshold services for children with low mood. PMID- 29042907 TI - Effects of puerarin combined with conventional therapy on ischemic stroke. AB - This study evaluated the use of conventional therapy combined with puerarin on ischemic stroke. Eighty patients with ischemic stroke admitted to Tangshan Gongren Hospital from March 2014 to September 2015 were randomly divided into two groups. The control group was treated with conventional therapy. The observation group was treated with an additional puerarin injection of 400 mg/day. The patients in both groups were examined for clinical neurological signs and symptoms. The levels of biochemical markers as well as changes in hemorheology were measured after the intervention and compared among the groups. Our results indicate that the language expression was significantly better in the observation group after the intervention (p<0.05). Additionally, the aphasia quotient was higher (p<0.05), the neurological deficit score was lower (p<0.05), and the functional ability score was higher (p<0.05). The plasma S-100B and NSE levels were lower (p<0.05), the whole blood viscosity and plasma viscosity were lower (p<0.05), and the levels of corticotropin-releasing hormone, corticotropin, cortisol, adrenaline and norepinephrine were lower (p<0.05). Our findings led to the conclusion that the use of puerarin can effectively improve the language function, reduce neurological damage, reduce blood viscosity, reduce stress response and improve quality of life. PMID- 29042908 TI - Nursing interventions in depressed children with low serum levels of BDNF. AB - The purpose of this study was to investigate the correlation between brain derived neurotrophic factor (BDNF) in serum and depression in children, and explore the effects of different nursing protocols on patients with low levels of BDNF. We recruited 128 children with depression and 50 healthy subjects. Compared with healthy controls, the mRNA and protein levels of BDNF in serum were lower in children with depression (p<0.01). We selected 60 depressed children with low BDNF and randomly divided them in two groups: comprehensive nursing (n=30) and regular nursing (n=30). Compared to healthy children, there was a significant increase in Hamilton depression (HAMD) scores in patients with depression in childhood (p<0.01). After treatment, BDNF protein expression was higher in the comprehensive nursing group than that in the regular nursing group (p<0.05). Also, the HAMD score in the comprehensive nursing group was significantly lower than that in the regular nursing group (p<0.05). Compliance to treatment and quality of life after treatment improved in the comprehensive nursing group compared with the regular nursing group (p<0.05). Overall, a decrease in BDNF expression is closely correlated with depression, and comprehensive nursing care can significantly ameliorate the depression symptoms in pediatric patients, increase the BDNF expression, and improve compliance and quality of life. These results provide theoretical and practical significance for clinical nursing care of patients with depression in childhood. PMID- 29042909 TI - Elevation of PTPN1 promoter methylation is a significant risk factor of type 2 diabetes in the Chinese population. AB - The present study aimed to investigate the contribution of DNA methylation of the protein tyrosine phosphatase, non-receptor type 1 (PTPN1) gene to the susceptibility to type 2 diabetes (T2D). Peripheral blood mononuclear cells (PBMCs) were collected from 97 patients with T2D and 97 age- and gender-matched controls. DNA methylation of the PTPN1 gene promoter was evaluated by bisulfite pyrosequencing. Independent sample t-tests were used to compare the differences in the PTPN1 promoter and other phenotypes between the patients with T2D and the controls. The results indicated a significant correlation between PTPN1 promoter methylation and the risk of T2D. Additionally, a breakdown analysis by gender revealed that PTPN1 methylation was associated with an increased risk of T2D in females. Furthermore, low-density lipoprotein (r=-0.183, P=0.046) and total cholesterol (r=-0.310, P=0.001) were inversely associated with PTPN1 methylation in females. In conclusion, the results indicate that elevated PTPN1 promoter methylation is a risk factor for T2D in the female Chinese population. PMID- 29042910 TI - Tumoricidal activities of pterostilbene depend upon destabilizing the MTA1-NuRD complex and enhancing P53 acetylation in hepatocellular carcinoma. AB - The present study aimed to assess the tumoricidal effect of metastasis-associated protein 1 (MTA1) induced by pterostilbene (PTER) in hepatocellular carcinoma (HCC). The SMMC-7721 hepatoma cell line was treated with PTER. Following treatment, the mRNA transcript abundance of MTA1 was measured using quantitative polymerase chain reaction. Additionally, cell viability was determined using an MTT assay, and protein expression was measured through western blotting. Cell invasion, motility and apoptosis, as well as the cell cycle, were also investigated. Following PTER treatment, MTA1, histone deacetylase (HDAC) 1 and HDAC2 were downregulated, whereas the ratio of acetyl-p53 to total p53 was increased in HCC cells. Cell viability decreased as the PTER dose increased. MTA1 may be associated with proliferation, motility, invasion and metastasis in HCC cells. PTER appeared to repress cell proliferation, trigger apoptosis, induce cell cycle arrest, and inhibit motility and invasion via MTA1 in human liver cancer cells. The results of the present study demonstrated that PTER can downregulate the MTA1-nucleosome remodeling and deacetylase complex, and enhance p53 acetylation to inhibit the growth of tumor cells in HCC. PMID- 29042912 TI - HPV vaccination in boys: Determining the clinical relevance of this strategy. PMID- 29042911 TI - Nalbuphine analgesic and anti-inflammatory effects on patients undergoing thoracoscopic lobectomy during the perioperative period. AB - This study sought to investigate the analgesic effects of nalbuphine on patients undergoing thoracoscopic lobectomy during the perioperative period, as well as its effects on inflammatory cytokines. We selected 92 patients with early lung cancer who were admitted to Xiangyang No. 1 People's Hospital between January 2016 and December 2016. The patients were randomly divided into control and observation groups (n=46 each). All patients underwent thoracoscopic lobectomy, with those in the observation group receiving intravenous nalbuphine hydrochloride prior to induction (the control group received saline). Intraoperative blood loss, operation time and anesthetic dosages were compared between groups. The analgesic effects during the perioperative period were compared using a visual analogue scale. The adverse effects of anesthetics (nausea, vomiting, dizziness and drowsiness) were compared between the two groups. Finally, serum inflammatory cytokine [tumor necrosis factor-alpha (TNF alpha), interleukin-6 (IL-6) and IL-10] levels were measured using ELISA at 1, 3, 5 and 7 days after operation. There were no significant differences in intraoperative blood loss and operation time between the two groups (p>0.05). However, dosages of propofol and remifentanil used were lower in the observation group than in the control group (p<0.05), and the effective rate of postoperative analgesia in the observation group was significantly higher than that in the control group (p<0.05). The degree of postoperative pain in both groups were lower than preoperative rates (p<0.05), while the incidence of adverse reactions in the observation group was significantly lower than in the control group (p<0.05). Finally, TNF-alpha, IL-6 and IL-10 levels were significantly lower in the observation group relative to the control group at 1, 3, 5 and 7 days after operation (p<0.05). Therefore, nalbuphine has a significant analgesic effect during thoracoscopic lobectomy. The application of nalbuphine can reduce the incidence of adverse reactions, reduce postoperative inflammatory responses, and promote rapid patient recovery, thus demonstrating the clinical value of nalbuphine. PMID- 29042913 TI - Paediatric Virology as a new educational initiative: An interview with Nobelist Professor of Virology Harald zur Hausen. AB - Born in Gelsenkirchen-Buer in Germany on March 11th, 1936, Professor Harald zur Hausen, Emeritus Professor of Virology at the University of Freiburg and 2008 Nobel Prize Laureate in Physiology or Medicine for his discovery of human papillomavirus (HPV), which causes cervical cancer, believes that good knowledge of virological methods and diagnostic possibilities are an asset for all young paediatricians. Professor zur Hausen considers that the creation of an educational platform on Paediatric Virology is definitely very beneficial for young paediatricians, as this will greatly enhance their knowledge in the field of Virology. He very actively advocates the vaccination of boys for the eradication of HPV infection and emphasises that male HPV vaccination should be included into the current vaccination programmes. He would have certainly considered Dr George N. Papanicolaou (Kyme, Island of Euboea, Greece, 1883 - Miami, Florida, USA, 1962) as an excellent candidate for the Nobel Prize, stating that the contribution of Dr Papanicolaou did not find sufficient recognition in the past. In the context of the 3rd Workshop on Paediatric Virology, which will be held in Athens, Greece, on October 7th, 2017, Professor zur Hausen will give his plenary lecture on 'Paediatric Virology and Oncology: Virus persistence and the important first years of life'. PMID- 29042914 TI - The educational challenge of Paediatric Virology: An interview with Professor of Neonatology Anne Greenough. AB - According to Professor Anne Greenough, Professor of Neonatology and Clinical Respiratory Physiology at the King's College London (London, UK), Paediatric Virology is indeed a rapidly increasing educational challenge. Professor Greenough, who in 1992 wrote her book on congenital, perinatal and neonatal infections, believes that during the past 3 decades, paediatric health professionals are becoming increasingly involved in specialised care and follow up of paediatric patients with viral diseases, who require advanced medical care and innovative technological services. Moreover, she highlights the expected role of new vaccines and antiviral agents that are currently under investigation, as well as the impact of emerging viral diseases that require novel prevention strategies and therapeutic protocols. However, she notes that the number of Paediatric Virologists in any one country is likely to be small; hence, a separate paediatric subspecialty needs to be considered carefully. In the context of the 3rd Workshop on Paediatric Virology, which will be held in Athens, Greece, on October 7th, 2017, Professor Greenough will give her plenary lecture on the impact of viral infections on the long term outcomes of prematurely born infants. PMID- 29042915 TI - The innovation of the subspecialty of Paediatric Virology: An interview with Research Professor of Molecular Virology Anna Kramvis. AB - Professor Anna Kramvis, Research Professor of Molecular Virology at the University of the Witwatersrand in Johannesburg, South Africa, talks about direct acting antiviral treatments against hepatitis C virus (HCV), as well as the perspective of the development of an effective vaccine against HCV. She emphasises the necessity of vaccination against hepatitis B virus (HBV), highlighting that it is very important that vaccination should be administered at birth in order to prevent mother-to-child transmission (MTCT) of HBV. Professor Kramvis states that vaccination against HBV is safe and that HBV and HCV infections are not contraindications for breastfeeding. Regarding the challenge of Paediatric Virology, she believes that it is a field that during the last years is increasing exponentially, while she concurs that Paediatric Virology subspecialty will be a popular choice for infectious diseases subspecialists. In the context of the 3rd Workshop on Paediatric Virology, which will be held in Athens on October 7th, 2017, Professor Kramvis will give her key lecture on MTCT of HBV and HCV. PMID- 29042916 TI - The proposal of Paediatric Virology and its perspectives: An interview with Professor of Paediatrics Maria Theodoridou. AB - Professor Maria Theodoridou, Emeritus Professor of Paediatrics at the University of Athens, is one of the few paediatricians in Greece, who have experienced almost all the infectious diseases of the second half of the 20th century and their severe consequences, prior to the widespread adoption of immunisations. A milestone during her career was the establishment of a specialised National Reference Unit for the care of paediatric patients with acquired immune deficiency syndrome (AIDS) at the 'Aghia Sophia' Children's Hospital in Athens, Greece. According to Professor Theodoridou, training on the prevention, management and treatment of neonatal and paediatric viral infections represents a new educational challenge for both community as well as hospital-based paediatric health professionals. The debate of the potential strategically principal role of Paediatric Virology subspecialists in the primary, secondary and tertiary clinical practice is definitely necessary and needs further discussion and evaluation, she adds. She describes the difficulties that Greece, a country under a long-standing financial crisis, faces for the hospital-based management of paediatric viral infections and refers to the future advances, which are expected in the field of diagnosis and treatment of viral infections in neonates and children. In the context of the 3rd Workshop on Paediatric Virology, which will be held in Athens on October 7th, 2017, Professor Theodoridou will focus on the immigration crisis and vaccination policy. PMID- 29042917 TI - Viral infections, neonatal mortality and the mystery of the Athenian Agora: An interview with Professor of Anthropology Maria Liston. AB - Although excavated almost 80 years ago, the infants' 'bone well' of the Athenian Agora in Athens, Greece and its contents were never thoroughly evaluated and published, until only recently, when a re-analysis of the whole excavation findings was performed. The well dates back to the third quarter of the 2nd century BC and contained at least 449 infants. The project, which explored the causes of neonatal mortality, found that one-third of infants' deaths were attributed to neonatal meningitis, based on the presence of bone disposition on the endocranial surface of the studied skulls. Despite the non-specific differential diagnostic approach of this pathophysiological finding in neonates, the determination of the causes of neonatal mortality in the Athenian Agora is really an impressive scientific attempt and can be a valuable lesson to all neonatal and peadiatric health professionals. According to Professor Maria Liston, Associate Professor of Anthropology at the University of Waterloo in Canada, who was the principal investigator of the skeletons from the infants' 'bone well' of the Athenian Agora, neonatal meningitis was the most frequently detected cause of neonatal mortality. Viral diseases unquestionably contributed to neonatal mortality, she adds and highlights that further research is required in collaboration with physicians for the better understanding and interpretation of various archaeological findings related to neonatal mortality. In the context of the 3rd Workshop on Paediatric Virology, which will be held in October 7th, 2017 in Athens, Greece, Professor Liston will reveal the role of neonatal and paediatric viral infections in the Hellenic antiquity. PMID- 29042918 TI - George N. Papanicolaou (1883-1962), an exceptional human, scientist and academic teacher: An interview with Dr Neda Voutsa-Perdiki. AB - Dr Neda Voutsa-Perdiki, former Director of Exfoliative Cytology at the University of Florida (Florida, USA), talks about her academic teacher Dr George N. Papanicomicronlaou, referred to as the 'Father of Exfoliative Cytology', and his wife Mache, known as Mary Papanicolaou. According to Dr Voutsa-Perdiki, Dr Papanicolaou was an exceptional teacher and a unique humanitarian in modern medical history. The secret of his scientific success was hard work, dedication, love of research, faith and the courage he gained from his wife and colleagues. According to Dr Voutsa-Perdiki, although Dr Papanicolaou was nominated for the Nobel Prize for at least 5 times, the reason for not receiving it remains unclear. His research was mainly clinical and not purely experimental, she adds. The official launch of her recently published book about Dr Papanicolaou entitled 'Dr George and Mache-Mary Papanicolaou - As I knew them' was held on March 1st, 2017 at the 'Benaki' Museum in Athens, Greece. PMID- 29042919 TI - The combined strategy of mesenchymal stem cells and tissue-engineered scaffolds for spinal cord injury regeneration. AB - Spinal cord injury (SCI) is a traumatic lesion that can result in the loss of motor or sensory neurons. Stem cell (SC)-based therapies have been demonstrated to promote neuronal regeneration following SCI, by releasing a range of trophic factors that support endogenous repair or by differentiating into neurons, or glial cells in order to replace the damaged cells. However, numerous limitations remain for therapies based on SC transplantion alone, including a low rate of survival/engraftment. Nevertheless, scaffolds are 3-dimentional substrates that have revealed to support cell survival, proliferation and differentiation in vivo, by mimicking a more favorable endogenous microenvironment. A multidisciplinary approach, which combines engineered scaffolds with SCs has been proposed as a promising strategy for encouraging spinal cord regeneration. The present review has focused on the regenerative potential of mesenchymal SCs isolated from different sources and combined with various scaffold types, in preclinical and clinical SCI studies. PMID- 29042920 TI - Screening of differentially expressed proteins in psoriasis vulgaris by two dimensional gel electrophoresis and mass spectrometry. AB - The aim of the present study was to elucidate differentially expressed proteins in lesional tissues of psoriasis vulgaris (PV) and normal tissues. Lesional skin tissues were collected from PV patients, along with normal skin tissues from healthy individuals. The protein content of the samples was extracted and then separated by two-dimensional gel electrophoresis (2-DGE). Any proteins that were differentially expressed in the lesional skin of PV patients compared with the healthy controls were analyzed by mass spectrometry and bioinformatics. In the stratum corneum and dermis of PV patients, the total number of proteins identified by 2-DGE was 1,969+/-21 and 1,928+/-49, respectively. Of these, 30 proteins were differentially expressed in the PV patients, of which 14 were identified as: Type 1 keratin cytoskeleton proteins (including K1C10, K1C14, K1C15 and K1C16); the type 2 keratin cytoskeleton protein, K2C1; actin-associated proteins (including ARP3, ACTA and ACTBM); prohibitin; heat shock proteins (HSPB1 and CH60); centrosome protein, CP135; and membrane associated proteins (including ANXA4 and ANXA5). The differential expression of protein between PV lesions and normal tissue can be considered as pathological biomarker. Elucidating the abnormal regulation of these proteins can provide mechanism of the development of PV and may contribute to significant approaches for PV treatments. PMID- 29042921 TI - Protective effects of ellagic acid against tetrachloride-induced cirrhosis in mice through the inhibition of reactive oxygen species formation and angiogenesis. AB - Ellagic acid has been proven to have anticancer, antimutation, antimicrobial and antiviral functions. The present study investigated whether treatment with ellagic acid was able to prevent tetrachloride (CCl4)-induced cirrhosis through the inhibition of reactive oxygen species (ROS) formation and angiogenesis. CCl4 diluted in olive oil at a final concentration of 10% was used to induce a cirrhosis model. A total of 40 mice were random allocated into four groups, as follows: Control, cirrhosis model, 7.5 mg/kg ellagic acid and 15 mg/kg ellagic acid groups. In the control group, mice were given normal saline. The results indicated that ellagic acid exerted a protective effect, evidently preventing CCl4-induced cirrhosis. In addition, treatment with ellagic acid significantly inhibited collagen I and inducible nitric oxide synthase protein expression levels in CCl4-induced cirrhosis mice. Oxidative stress and ROS formation were also significantly reduced by ellagic acid treatment. The protein expression levels of vascular endothelial growth factor (VEGF) and VEGF receptor 2 (VEGFR2), and the caspase-3 activity were significantly inhibited by treatment with ellagic acid. In conclusions, these results suggest that ellagic acid exerted protective effects against CCl4-induced cirrhosis through the inhibition of ROS formation and angiogenesis. PMID- 29042922 TI - Endoscopy in the treatment of slit ventricle syndrome. AB - The present study aimed to investigate the efficacy of endoscopy in the treatment of post-shunt placement for slit ventricle syndrome (SVS). Endoscopic surgery was performed on 18 patients with SVS between October 2004 and December 2012. Sex, age, causes of the hydrocephalus, ventricular size and imaging data were collected and analyzed. All patients were divided into two groups according to ventricular size and underwent endoscopic surgeries, including endoscopic third ventriculostomy (ETV), endoscopic aqueductoplasty and cystocisternostomy. All treated patients were observed postoperatively for a period of 2 to 3 weeks, and outpatient follow-up was subsequently scheduled for >12 months. Clinical results, including catheter adherence, shunt removal and complications, were analyzed during the follow-up period. The success rate of endoscopic surgery was indicated to be 82.7%. Syndromes caused by aqueductal stenosis in 15 patients who underwent ETV were relieved; however, syndromes in the 3 patients with cerebral cysticercosis, suprasellar arachnoid cysts, pinea larea glioma and communicating hydrocephalus, respectively, were not relieved and underwent shunt placement again. Brain parenchyma, choroid plexus and ependymal tissue were the predominant causes for catheter obstruction and the obstruction rate was indicated to be 77.8% (14/18). Complications, such as pseudobulbar paralysis, infection and intraventricular hemorrhage arose in 3 patients. The present study indicates that endoscopic treatments are effective and ETV may be considered as a recommended option in the treatment of post-shunt placement SVS in hydrocephalus patients. PMID- 29042923 TI - ERbeta compensates for the absence of ERalpha function to promote osteoblast viability by inhibition of SOST signaling. AB - Estrogen receptors alpha and beta (ERalpha and ERbeta) serve key functions in bone development and maintenance, and in the metabolism of bone mineral. ERbeta and ERalpha form heterodimers, and ERbeta negatively regulates the transactivation of ERalpha. ERbeta also inhibits recruitment of ERalpha to the estrogen-responsive promoters. However, the relationship of ERalpha and ERbeta in the regulation of osteoblast viability and differentiation remains unclear. The present study aimed to investigate whether ERbeta plays a role in balancing ERalpha activity in osteoblast cells. Downregulation of ERalpha by short hairpin RNA (shRNA) was found to significantly increase cell cycle arrest at G1 phase (P<0.01). In addition, this effect was found to be significantly enhanced by downregulation of ERbeta (P<0.05). Inversely, ERalpha-knocked down osteoblasts were treated with ERbeta agonist 2,3-bis(4-hydroxyphenyl)-propionitrile (DPN) to activate ERbeta. It was found that activation of ERbeta significantly rescued the arrest of cell cycle induced by the downregulation of ERalpha (P<0.05). Furthermore, downregulation of ERalpha was found to significantly inhibit cell viability (P<0.01), and knockdown of ERbeta was found to have a significant synergic effect with ERalpha downregulation on the inhibition of cell viability (P<0.01). Treatment with ERbeta agonist DPN significantly rescued the effects of downregulation of ERalpha on cell viability (P<0.01). It was also demonstrated that the synergic effects of ERalpha and ERbeta deletion was via upregulation of SOST gene expression, and the subsequent inhibition of OPG and Runx2 gene expression. Thus, ERbeta may serve a function in balancing osteoblast viability and differentiation induced by ERalpha. PMID- 29042924 TI - Inhibition of periderm removal in all-trans retinoic acid-induced cleft palate in mice. AB - Cleft palate is a common craniofacial birth defect. The aim of the present study was to investigate the effect of excess all-trans retinoic acid (atRA) on periderm removal and the disappearance of basal medial edge epithelial (MEE) cells during palatogenesis, particularly during the stage prior to contact. atRA (200 mg/kg) was administered to C57BL/6N mice at embryonic day (E) 12.0 by gavage. Fetal palates were processed and analyzed by histology and electron microscopy. Single palate shelf peridermal cells were removed and cultured in the presence of atRA (3 uM) only or in the presence of or the caspase inhibitor, Z VAD (100 uM) only, for 48 h. Once cultured, morphological changes were analyzed by histological staining and electron microscopy. A TUNEL assay was used to detect apoptotic neurons. Paired palatal shelves with periderm removal were cultured in the presence of atRA (3 uM) only or in the presence of Z-VAD (100 uM) only for 48 h and analyzed by hematoxylin and eosin staining. At E14.5, medial edge epithelium periderm was retained in the atRA-treated palates but had been shed prior to contact in the control groups. In addition, atRA was revealed to disrupt the cell cycle in the periderm by downregulating p21. Furthermore, atRA inhibited apoptosis in the periderm and basal MEE cells; however, atRA exhibited no effect on basement membrane degradation in single palatal organ culture. Additionally, once paired palates were cultured for 48 h, all of the groups in which the periderm had been removed exhibited confluence of the embryonic palatal mesenchyme. The present results suggest that periderm removal is inhibited in atRA-induced cleft palate in mice and that removal of the periderm contributes to EPM confluence in vitro. PMID- 29042925 TI - Calreticulin is an effective immunologic adjuvant to tumor-associated antigens. AB - As a key molecule involved in cell recognition, calreticulin (CRT) may be expressed on the surface of (pre-) apoptotic cells and provide the signal that is recognized by dendritic cells (DCs) or other antigen presenting cells (APCs), which results in phagocytosis. Within the APCs, tumor-associated antigens (TAAs) may be subsequently presented to T lymphocytes, which triggers a specific antitumor immune response. It has been hypothesized that CRT is able to act as the immunologic adjuvant and translocate itself and TAAs to the cell surface and induce a specific antitumor immune response. In the present study, CRT was demonstrated to translocate itself and mucin 1 (MUC1), a breast cancer antigen, to the surface of 4T1 cells and the MUC1-CRT-coated cells were able to induce apoptosis in a time-dependent manner. When DCs were infected with adenovirus containing MUC1-CRT, an increase in T cell proliferation and cytokine production was exhibited. These results suggest that CRT may act as an immunologic adjuvant with MUC1 and induce a strong immune response. PMID- 29042926 TI - Anti-EGFR antibody conjugated silica nanoparticles as probes for lung cancer detection. AB - A well-designed nanosystem [anti-epidermal growth factor receptor-MB-encapsulated thiol-terminated silica nanoparticles (EGFR/MB-SHSi) complexes] containing silica nanoparticles and near-infrared fluorescence dye (NIRF) methylene blue (MB) was established as a tumor-targeted probe for potential lung cancer detection. The anti-EGFR/MB-SHSi complexes exhibited desirable and homogenous particle size, high bovine serum albumin stability, low hemolytic activity, neutral surface charges and negligible cytotoxicity in vitro. Furthermore, the results of confocal laser scanning microscopy and flow cytometry confirmed that the EGFR targeted function induced high and specific cellular uptake of anti-EGFR/MB-SHSi complexes. In vivo investigation of nude mice bearing A549 tumor xenografts revealed that anti-EGFR/MB-SHSi complexes possessed strong tumor target ability. These observations indicated that anti-EGFR/MB-SHSi complexes may be a safe and tumor-targeting probe for the detection of cancer. PMID- 29042927 TI - Novel type of peritoneocentesis trocar-assisted distal ventriculoperitoneal shunt placement with supervision via a one-port laparoscope. AB - Ventriculoperitoneal shunts (VPS) are the primary treatment for hydrocephalus and are associated with a high risk of complications, specifically in patients who are obese or have abdominal adhesions or shunt revisions. The present study describes the use of a novel type of peritoneal catheter peritoneocentesis trocar insertion with the assistance of a one-port laparoscope. A total of 36 patients with hydrocephalus underwent this novel type of peritoneocentesis trocar-assisted VPS. The distal shunt catheter was placed into the right subdiaphragmatic space and the catheter was traversed through a single hole drilled through the liver falciform ligament. The duration of the laparoscopic surgery ranged from 6-18 min (mean 10.4+/-1.6 min). No shunt-related infections or catheter malfunctions or injuries to the intra-abdominal organs occurred. The total abdominal incision length was 1.0 cm (0.5+0.5 cm). No laparoscopy-related complications were observed during follow-up assessments. The novel approach used in the current study is very easy to perform, and this method may significantly reduce the risk of malfunction complications. The presented method also has the advantages of reduced trauma and a simpler surgery. The current study indicated that this simple, minimally invasive procedure was beneficial for patients with hydrocephalus, specifically in cases of patients with obesity, peritoneal adhesions or shunt revisions. PMID- 29042928 TI - Long non-coding RNA AB209630 suppresses cell proliferation and metastasis in human hepatocellular carcinoma. AB - Hepatocellular carcinoma (HCC) is one of the most prevalent cancers worldwide and the second most common cause of cancer-related mortalities. With a high potential for metastasis and recurrence, HCC is refractory to cure. The present study aimed to explore the role of a recent-discovered LncRNA, AB209630, in human HCC, in order to provide new insights useful for clinical HCC diagnosis and treatment. Reverse transcription-quantitative polymerase chain reaction was performed to examine the expression of AB209630 in clinical HCC samples and the adjacent non cancerous tissues. The reduced expression of AB209630 observed in HCC tissues and cultured HCC cells compared with normal hepatic tissues and cells prompted the construction of an AB209630-expressing plasmid with a CBP tag on the plasmid backbone. Cell proliferation and colony formation assays were conducted to detect the effects of AB209630 on HCC cell proliferation. In addition, Transwell assay and wound-healing assays were performed, the results of which further indicated that the overexpression of AB209630 inhibited the migration and invasion of HCC cells. These results revealed the inhibitory effects of AB209630 on HCC progression, and suggest the potential of AB209630 as an inhibitor of HCC for clinical use. PMID- 29042930 TI - Relevance of clinical features in the prognosis of bronchopulmonary dysplasia in premature infants. AB - The aim of this study is to determine the accuracy rate of bronchopulmonary dysplasia (BPD) diagnosis and risk factors of short-term poor prognosis for premature infants. This study analyzed the clinical data of 81 premature infants (<32 weeks gestational age) with BPD, who were on oxygen therapy >28 days, and survived >36 weeks (corrected age). Outcome measures included treatments, conditions on the 28th day after birth, oxygen therapy conditions at the 36th week, occurrence of any serious complications during hospital stay. The major risk factors affecting prognosis were ventilation duration, duration of oxygen therapy, application of steroids, hypothyroidism and severity of BPD (all P<0.05). Interventions for complications (n=53) resulted in ceased inhalation of oxygen in 12 infants, improvement of symptoms in 26 infants, and were ineffective in 15 infants. BPD prognosis can be improved by shortening the duration of invasive ventilation and correcting thyroid function. PMID- 29042929 TI - Quantitative assessment of salvaged myocardial zone and intramyocardial hemorrhage using non-contrast faster T2 mapping in a rat model by 7T MRI. AB - The aim of this study was to determine the myocardial area at risk (AAR), infarction-core size (IS) and the salvaged myocardial zone (SMZ), and to evaluate the imaging and histological characteristics of intramyocardial hemorrhage (IMH) after myocardial infarction using non-contrast T2 mapping on 7T magnetic resonance imaging (MRI). Twenty Sprague Dawley (SD) rats were randomly divided into the sham and model groups (n=10 in each). In the model group, myocardial infarction models were established by left anterior descending branch ligation. After 24 h, all animals were imaged on a 7.0 Tesla system with cine spiral imaging, T2 mapping with late gadolinium enhancement (LGE). The rats were then sacrificed for measurement of the IS and AAR using 2,3,5-triphenylterazolium chloride (TTC) and hematoxylin and eosin (H&E) staining. T2 mapping revealed that the AAR in the model group was significantly higher than that in the sham group. No remarkable T2 value was noted in the entire heart of the sham group. LGE and TTC staining demonstrated similar IS. T2 mapping and H&E staining revealed a similar AAR as well. T2 mapping characterized the IMH as a phenomenon resulting from the area of hypointensity in the hyperintensity involving the infarct-core zone and corresponding T2 value 928.6+/-1.52 msec with IMH vs. 35.8+/-2.61 msec without IMH; n=3 with 18 slices; P=0.032). In conclusion, non-contrast T2 mapping was a reliable approach to quantitatively evaluate the SMZ and IMH. PMID- 29042931 TI - Delivery of biotinylated IGF-1 with biotinylated self-assembling peptides combined with bone marrow stem cell transplantation promotes cell therapy for myocardial infarction. AB - Cell therapy is a promising approach for cardiac repair. The aim of the present study was to determine the feasibility of using biotinylated insulin-like growth factor 1 (IGF-1) with biotinylated self-assembling peptides (tethered IGF-1) combined with bone marrow stem cells (BMSCs) transplantation for the treatment of heart failure. Tethered IGF-1 was synthesized and its effect on H9c2 cells was analyzed. Reverse transcription-quantitative polymerase chain reaction and western blot assays demonstrated that tethered IGF-1 did not significantly affect the expression and phosphorylation of AKT, whereas it significantly increased the expression of cardiac troponin T (P<0.01). A rabbit myocardial infarction model was constructed and rabbits were divided into four groups: Control group (no treatment), group 1 (G1; BMSC transplantation), group 2 (G2; BMSCs + non biotinylated IGF-1) and group 3 (G3; BMSCs + tethered IGF-1). At 4 weeks after modeling, cardiac tissues were obtained for analysis. In the control group, myocardial fibers were disordered, a large number of inflammatory cells infiltrated the cardiac tissues, and apoptosis occurred in ~50% of cells. However, in G1, G2 and G3, muscle cells were well ordered, and a lesser degree of myocardial degeneration and inflammatory cell infiltration was observed. Compared with the control group, the apoptosis rates of myocardial cells in G1-G3 were significantly decreased (P<0.01). Furthermore, compared with G1 and G2, tissue morphology was improved in G3and the number of apoptotic myocardial cells was significantly decreased (P<0.01). These results suggest that treatment with tethered IGF-1 + BMSCs significantly suppresses cell apoptosis and induces the expression of cardiac maturation proteins. These findings provide a novel insight into how the delivery of tethered IGF-1 with BMSCs could potentially enhance the prognosis of patients with heart failure treatment. PMID- 29042932 TI - Cardioprotective effect of Notch signaling on the development of myocardial infarction complicated by diabetes mellitus. AB - The present study aimed to elucidate the role of Notch signaling in the development of myocardial infarction (MI) concomitant with diabetes in vivo and in vitro and evaluated the therapeutic effect of the Notch signaling in vitro. Streptozotocin-induced diabetic rats were subjected to 25 min of ischemia and 2 h of reperfusion. Cardiac troponin T (cTnT) and creatine kinase-MB (CK-MB) isoenzyme levels were detected. Infarct size was measured by 2,3,5 triphenyltetrazolium chloride staining. Myocardial apoptosis and fibrosis were examined by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling and Masson Trichrome staining, respectively. The mRNA and protein levels of Notch signaling components, including Notch1, Notch4, Delta-like 1, Jagged1, Mastermind like protein 1 and p300, were quantified by reverse transcription-quantitative polymerase chain reaction and western blotting analyses, respectively. H9c2 cells were treated with/without 33 mM high glucose (HG) and/or subjected to hypoxia in the presence/absence of Jagged1. Cell viability and apoptosis were determined by MTT assay and Annexin V-fluorescein isothiocyanate/propidium iodide assay. Levels of the Notch signaling pathway members were examined. The present findings revealed that diabetes elevated CK-MB and cTnT, increased infarct size, induced myocardial apoptosis and inhibited the Notch signaling pathway in vivo after ischemia/reperfusion. Ischemia/reperfusion augmented the severity of MI in diabetic rats. Furthermore, HG reduced cell viability and induced cell apoptosis in H9c2 cells after hypoxia exposure, which was inhibited by Jagged1. We also found that HG inhibited Notch signaling in H9c2 cells after hypoxia, whereas Jagged1 exerted its cardioprotective effect on hypoxic injury (in HG environments or not) by activating the Notch signaling pathway. In conclusion, these findings suggest that diabetes promoted the progression of MI in vivo and in vitro via the inhibition of the Notch signaling pathway. Jagged1 may protect against MI in in vitro models by activating Notch signaling. PMID- 29042933 TI - Effects of exogenous growth hormone administration on dexamethasone-induced growth impairment in adolescent male rats. AB - Growth impairment (GI) is one of the adverse effects of dexamethasone (DXM), and growth hormone (GH) has been used clinically to improve GI. The present study aimed to evaluate the manner in which DXM disturbs the growth rate of longitudinal bones, and the recovery effects of GH on DXM-induced GI in the longitudinal bones of adolescent male rats. In the first experiment, DXM (0, 0.5, 1, 2 and 5 mg/kg) was administered subcutaneously to identify a potential dose dependent activity and calculate the median effective dose (ED50) of DXM-induced GI. The ED50 was identified to be 1.15 mg/kg. In the second experiment, GH (0, 2.5, 5 and 10 mg/kg) with 1.15 mg/kg DXM was injected subcutaneously to assess the recovery effects of GH on DXM-induced GI. The growth rates of the longitudinal bones, total height of the growth plate, local mRNA expressions of insulin-like growth factor 1 (IGF-1), GH receptor (GHR) and IGF-1 receptor (IGF 1R), and local protein expression of IGF-1 were measured to evaluate the recovery effects of GH on DXM-induced GI. The local expressions of IGF-1, GHR and IGF-1R mRNA, and IGF-1 protein were measured using quantitative polymerase chain reaction following laser microdissection and antigen-specific immunohistochemistry, respectively. GH administration partially recovered DXM induced GI in the longitudinal bones and growth plate. GH significantly increased the levels of IGF-1, GHR and IGF-1R mRNA in the proliferative zone of the control group (P<0.05), whereas it failed to increase them in the proliferative zone of the DXM-treated group. Furthermore, GH increased the levels of IGF-1, GHR and IGF 1R mRNA in the hypertrophic zone of both the vehicle and DXM-treated groups (P<0.05). Immunohistochemical analysis of IGF-1 protein expression revealed a similar pattern to that of IGF-1 mRNA. These results suggest that increased GH insensitivity in the proliferative zone of the growth plate, induced by DXM, leads to GI in longitudinal bones. Thus, combined administration of GH with GH insensitivity-alleviating medications may be more effective in the treatment of DXM-induced GI. PMID- 29042934 TI - Intermittent hypoxia simulating obstructive sleep apnea causes pulmonary inflammation and activates the Nrf2/HO-1 pathway. AB - Obstructive sleep apnea (OSA) is a disorder with high morbidity in adults. OSA damages multiple organs and tissues, including the cardiovascular and cerebrovascular systems, the metabolism system, the lungs, liver and heart. OSA induced damage is earliest and greatest to the pulmonary tissue. The present study established a rat OSA model of differing severity by inducing intermittent hypoxia with different concentrations of O2 and it was determined that OSA caused a severe oxidative stress response and pulmonary inflammation in a dose-dependent manner. OSA increased serum levels of C-reactive protein and 8-isoprostane and elevated the expression of malondialdehyde, tumor necrosis factor alpha, interleukin (IL)-1beta and IL-6 in the pulmonary tissue. Furthermore, the expression of two important antioxidants, superoxide dismutase and glutathione, was downregulated following intermittent hypoxia. By contrast, levels of cylooxygenase 2 and inducible nitric oxide synthase, which are crucial in the antioxidative response, increased. In addition, OSA activates the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase (OH)-1 antioxidative signaling pathway. Finally, all increases and decreases in levels of inflammatory and antioxidative substances were dependent on oxygen concentrations. Therefore, the present study demonstrated that OSA, simulated by intermittent hypoxia, caused an oxidative stress response and pulmonary inflammation, and activated the canonical antioxidative Nrf2/HO-1 signaling pathway in a dose-dependent manner. These results may facilitate the development of clinical therapies to treat pulmonary diseases caused by OSA. PMID- 29042935 TI - Decreased cathepsin K levels in human atherosclerotic plaques are associated with plaque instability. AB - Investigating the determinants and dynamics of atherosclerotic plaque instability is a key area of current cardiovascular research. Extracellular matrix degradation from excessive proteolysis induced by enzymes such as cathepsin K (Cat K) is implicated in the pathogenesis of unstable plaques. The current study assessed the expression of Cat K in human unstable atherosclerotic plaques. Specimens of popliteal arteries with atherosclerotic plaques were classified as stable (<40% lipid core plaque area; n=6) or unstable (>=40% lipid core plaque area; n=14) based on histopathological examinations of hematoxylin and eosin stained sections. The expression of Cat K and cystatin C (Cys C) were assessed by immunohistochemical examination and levels of Cat K mRNA were detected by semi quantitative reverse transcriptase polymerase chain reaction. Morphological changes including a larger lipid core, endothelial proliferation with foam cells and destruction of internal elastic lamina were observed in unstable atherosclerotic plaques. In unstable plaques, the expression of Cat K protein and mRNA was upregulated, whereas Cys C protein expression was downregulated. The interplay between Cat K and Cys C may underlie the progression of plaques from stable to unstable and the current study indicated that Cat K and Cys C are potential targets for preventing and treating vulnerable atherosclerotic plaque ruptures. PMID- 29042936 TI - The expression of vasohibin-1 and its prognostic significance in bladder cancer. AB - Angiogenesis is important in the development of solid tumors. Vasohibin-1 (VASH 1) is an endothelium-derived protein that acts as an inhibitor of angiogenesis in many different types of cancer. However, the expression of VASH-1 and its clinical value in bladder cancer remain unknown. The current study analyzed the expression of VASH-1, as well as the expression of the angiogenesis-related factors vascular endothelial growth factor-A, hypoxia inducible factor-1alpha and cluster of differentiation 34 in bladder cancer tissues from 50 patients using immunohistochemistry. The associations between the expression of these factors and the clinicopathological characteristics of the patients were assessed. The current study demonstrated that VASH-1 is primarily expressed in the cytoplasm of bladder cancer cells and in a fraction of vascular endothelial cells. Furthermore, the expression of VASH-1 was positively associated with the tumor stage (P<0.01), pathological grade (P<0.01) and distant metastasis (P<0.05) but not with patient age or sex (P>0.05). Spearman rank correlation tests indicated that levels of those four factors were positively correlated with each other. Kaplan-Meier analysis indicated that high expression of these four factors was significantly associated with lower 5-year overall survival and progression-free survival rates. Collectively, the results of the current study suggest that VASH 1 is clinically significant in bladder cancer and its high expression may predict the progression and prognosis of patients with bladder cancer. The present study also implies that VASH-1 may be a novel target for vascular targeting therapy. PMID- 29042937 TI - Inflammation and airway remodeling of the lung in guinea pigs with allergic rhinitis. AB - Allergic rhinitis (AR) and asthma belong to the category of type I allergic diseases, whose pathological features are airway remodeling of the lung and allergic inflammation. The aim of the present study was to evaluate inflammation and remodeling of lung tissue in a guinea pig model of AR in order to confirm consistent pathological changes of upper and lower airways in AR. Male guinea pigs were randomly divided into an experimental and a control group (n=10 in each). The AR model was established by sensitization through intraperitoneal injection of ovalbumin for three weeks and bilateral nasal local excitation for twelve weeks. All tissues of nasal mucosa and lung were subjected to hematoxylin and eosin as well as toluidine blue staining, and characteristics of remodeling of lung tissue, including thickness of bronchial wall, epithelial mucosa and smooth muscle were histologically determined. Collagen deposition in lung tissue was observed by Masson's trichrome stain. Severe paroxysmal nose scratching action, frequent sneezing, visible outflow of secretion from the anterior naris and frequent nose friction were observed in the AR model group within 30 min after local excitation. The total symptom scores were significantly increased in the AR model group compared with those in the control group. Obvious inflammatory cell infiltration was observed in the AR model group. Compared with those in the control group, the numbers of eosinophils and mast cells in nasal mucosa and lung tissue were significantly increased. Obvious airway remodeling of the lung was observed in the AR model group. Compared with those in the control group, bronchial wall thickness, epithelial layer thickness and smooth muscle thickness in the airways were significantly increased in the AR model group. Increased collagen deposition was found in the AR model group compared with that in the control group. The results of the present study revealed that inflammation and airway remodeling of lungs arose in guinea pigs with AR, suggesting that pathological changes of upper and lower airways are consistent in this AR model. PMID- 29042938 TI - Risk of infection in patients with spondyloarthritis and ankylosing spondylitis receiving antitumor necrosis factor therapy: A meta-analysis of randomized controlled trials. AB - Antitumor necrosis factor (TNF) agents have been widely used for the treatment of spondyloarthritis (SpA) and ankylosing spondylitis (AS). However, these agents may increase the risk of infection due to suppressing the immune response. The present meta-analysis was performed to systematically investigate the risk of overall infection, serious infection and tuberculosis in patients with SpA and AS treated with anti-TNF agents. Medline, Embase and the Cochrane library were searched for randomized controlled trials (RCTs) published between January 1998 and December 2015 about infection in patients with SpA receiving anti-TNF therapy. Data were pooled to obtain relative risks (RRs) along with their 95% confidence intervals (CIs). A total of 25 RCTs investigating SpA, including 12 investigating AS specifically, were eligible for the meta-analysis. Similar risks of overall infection were reported in patients with SpA (RR, 1.03; 95% CI, 0.92 1.15) and AS (RR, 1.06; 95% CI, 0.91-1.24) treated with anti-TNF agents. The RR of serious infection for patients with SpA or AS receiving anti-TNF therapy compared with a placebo was 1.27 (95% CI, 0.67-2.38) and 1.57 (95% CI, 0.63 3.91), respectively. In addition, 4 RCTs with outcomes of tuberculosis in patients with SpA receiving anti-TNF agents were identified, all in infliximab treated patients (RR, 2.52; 95% CI, 0.53-12.09). However, due to the limited number of RCTs, this finding should be interpreted with caution. The present meta analysis did not find any significantly increased risk of infection associated with anti-TNF therapy in patients with SpA or AS. However, due to short duration of follow-up in the RCTs and the rarity of serious infections and tuberculosis, patients treated with anti-TNF agents still should be closely monitored in clinical practice. PMID- 29042939 TI - Aphasic status epilepticus as the sole symptom of epilepsy: A case report and literature review. AB - Aphasia is a common symptom encountered by neurologists. However, the presence of aphasia as the sole manifestation of partial status epilepticus is rare. The present study reports a case of aphasic status epilepticus in a 27-year-old right handed female who presented after the abrupt onset of aphasia, which had persisted for 1.5 days. The patient's medical history included head trauma followed by a craniectomy and cranioplasty. Computed tomography scans revealed a lesion in the patient's left parietal lobe, and an electroencephalogram showed a spike and slow wave pattern in the left hemisphere of the brain during aphasia. The patient's condition improved after the oral administration of oxcarbazepine daily. In the present study it was observed that EEGs were a simple method to diagnose aphasic seizures and therefore EEG recordings should be performed in all cases of unexplained aphasia. In addition, the present study reviewed previously reported cases of aphasic status epilepticus. PMID- 29042940 TI - Expression and localization of special AT-rich sequence binding protein 2 in murine molar development and the pulp-dentin complex of human healthy teeth and teeth with pulpitis. AB - Special AT-rich sequence binding protein 2 (SATB2) is a member of the special family of AT-rich binding transcription factors and has a critical role in osteoblast differentiation and craniofacial patterning. However, the expression and distribution of SATB2 in tooth development is largely unknown. The aim of the present study was to detect the expression and distribution of SATB2 during murine molar development and, in human healthy teeth and teeth with pulpitis using immunohistochemistry. Molars were obtained from Kunming mice at embryonic day (E) 13.5, E14.5, E16.5 and E18.5, and postnatal day (P) 1, P5 and P7. In addition, 20 human teeth (10 healthy and 10 teeth with pulpitis) were obtained from young adult patients (age, 24.90+/-1.65 years) who were scheduled for routine extraction. Immunohistochemical analyses were performed to detect the expression and distribution of SATB2. The present results revealed that SATB2 exhibits a spatiotemporal expression pattern in murine molar development and was expressed in odontoblasts, predentin, dental pulp cells and the blood vessels in human teeth. These findings suggested that SATB2 may have an important role in odontoblast differentiation and dentin matrix mineralization during tooth development. PMID- 29042941 TI - Epigallocatechin gallate inhibits the growth and promotes the apoptosis of bladder cancer cells. AB - Epigallocatechin gallate (EGCG) has been revealed to inhibit the proliferation and induce the apoptosis of several types of tumor, in addition to inhibiting DNA methyltransferase activity, leading to CpG demethylation. Tissue factor pathway inhibitor 2 (TFPI-2) expression is downregulated in bladder cancer. The present study revealed that this downregulation was partly due to hypermethylation of the TFPI-2 gene promoter, which was decreased by EGCG treatment. In addition, the present study demonstrated that EGCG could inhibit the viability and invasion, and induce the apoptosis, of bladder cancer T24 cells. Furthermore, western blot analysis and reverse transcription-quantitative polymerase chain reaction analyses demonstrated that EGCG could upregulate the expression of TFPI-2. These results suggest that EGCG inhibits the growth and induces the apoptosis of bladder cancer cells through restoring TFPI-2 expression. Thus, EGCG is a potential therapeutic candidate for the treatment of bladder cancer. PMID- 29042942 TI - Benefits of urethroplasty for managing urethral amyloidosis: A case report. AB - Urethral amyloidosis is a rare condition in which eosinophilic amyloid proteins are deposited in the urethra. Only a small number of reports on urethral amyloidosis have been published. Increased interest has been associated with this disease due to its clinical similarities with urothelial carcinoma. A biopsy of the lesion and a histological examination are essential for the correct diagnosis. Conservative management has been suggested by various urologists as the optimal treatment approach for urethral amyloidosis; however, recurrence and urethral stricture are common, and typically further treatment is required. Urethroplasty has been used in a limited number of urethral amyloidosis cases, with beneficial short-term outcomes; however, long-term follow-up data are lacking. The present case report describes the cases of 2 patients with urethral amyloidosis who underwent urethroplasty without recurrence or progression for >2 years. These findings indicate that urethroplasty is beneficial for the long-term management of urethral amyloidosis. PMID- 29042943 TI - Suxiao Jiuxin Pill protects cardiomyocytes against mitochondrial injury and alters gene expression during ischemic injury. AB - Suxiao Jiuxin Pill (SX), a traditional Chinese medicine compound consisting primarily of tetramethylpyrazine and borneol, has been reported to protect against ischemic heart disease. However, the effects of SX on mitochondrial injury and gene expression in various signaling pathways are unclear. The aim of the present study was to investigate the effects of SX on mitochondrial injury and to screen the expression of genes potentially altered by SX using a cell culture model of ischemic injury. Simulated ischemia was established by culturing HL-1 cardiomyocytes in Dulbecco's modified Eagle medium without glucose or serum in a hypoxic chamber containing 95% N2 and 5% CO2 for 24 h. HL-1 cardiomyocytes were divided into 3 groups: Control, ischemic injury and ischemic injury + SX (100 ug/ml; n=3 wells/group). Mitochondrial membrane potential was detected by staining with JC-1 dye. The mRNA expression levels of adenylyl cyclase (Adcy) 1 9, adrenoceptor beta1, Akt1, ATPase Na+/K+ transporting subunit beta2, calcium voltage-gated channel auxiliary subunit alpha2delta (Cacna2d)2, Cacna2d3, calcium channel voltage-dependent gamma subunit 8, cytochrome C oxidase subunit 6A2 (Cox6a2), fibroblast growth factor receptor (Fgfr) 4, Fgf8, Fgf12, Gnas complex locus, glycogen synthase kinase 3beta (Gsk3b), mitogen-activated protein kinase (Mapk)11-14, Mapk kinase kinase kinase 1 (Map4k1), Mas1, nitric oxide synthase 3 (Nos3), phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (Pik3ca), phospholipase A2 group 4A, rap guanine nucleotide exchange factor 4 and ryanodine receptor 2 were detected using reverse transcription-quantitative polymerase chain reaction. The protein expression levels of phosphoinositide 3 kinase (PI3K), MAS-1 and phosphorylated-endothelial NOS were also examined by immunofluorescence staining. The decrease in mitochondrial membrane potential in the cell culture model of ischemic injury (P<0.001) was significantly attenuated by SX treatment (P<0.001). Furthermore, increases in the mRNA expression levels of Adcy2 (P<0.05), 3 (P<0.01) and 8 (P<0.05) in the ischemic injury model were significantly attenuated by SX treatment (P<0.01), and SX treatment significantly decreased the mRNA expression levels of Adcy1 (P<0.01) and 6 (P<0.05) in ischemic cells. Decreases in the mRNA expression levels of Cox6a2 (P<0.001), Gsk3b (P<0.01) and Pik3ca (P<0.001) in the ischemic injury model were also significantly attenuated by SX treatment (P<0.05, P<0.01 and P<0.001, respectively). In addition, the decrease in the protein expression of PI3K (P<0.001) was significantly attenuated by SX treatment (P<0.001). The present findings indicate that SX may protect cardiomyocytes against mitochondrial injury and attenuate alterations in the gene expression of Adcy2, 3 and 8, Cox6a2, Gsk3b and Pik3ca during ischemic injury. PMID- 29042944 TI - Pien Tze Huang induces apoptosis and inhibits proliferation of 5-fluorouracil resistant colorectal carcinoma cells via increasing miR-22 expression. AB - The well-known traditional Chinese medicine formula Pien Tze Huang (PZH) has long been used to treat various malignancies, including colorectal cancer (CRC). It was recently reported that PZH possesses the ability to overcome multidrug resistance in CRC cells. In the present study, a 5-fluorouracil (5-FU) resistant human CRC cell line (HCT-8/5-FU) was used to further evaluate the effect of PZH on chemotherapy (chemo)-resistance and investigate the mechanisms through which this occurs. The results identified that PZH significantly reduced the viability and cell density of HCT-8/5-FU cells in a dose- and time-dependent manner (P<0.05). PZH inhibited cell survival, reduced the proportion of cells in S phase, and suppressed the expression of pro-proliferative proteins cyclin D1 and cyclin-dependent kinase 4. In addition, PZH treatment induced nuclear condensation and fragmentation, activated caspase-9 and -3 and increased the pro apoptotic Bcl-2-associated X protein/B-cell lymphoma 2 protein ratio. Furthermore, PZH treatment upregulated the expression of microRNA-22 (miR-22) and downregulated the expression of c-Myc (a target gene of miR-22). In conclusion, the findings from the present study suggest that PZH can overcome chemo resistance in cancer cells, likely through increasing miR-22 expression, and by reversing the imbalance between levels of proliferation and apoptosis. PMID- 29042945 TI - Human umbilical cord mesenchymal stem cells increase interleukin-9 production of CD4+ T cells. AB - Mesenchymal stem cells (MSC) are able to differentiate into cells of multiple lineage, and additionally act to modulate the immune response. Interleukin (IL)-9 is primarily produced by cluster of differentiation (CD)4+ T cells to regulate the immune response. The present study aimed to investigate the effect of human umbilical cord derived-MSC (UC-MSC) on IL-9 production of human CD4+ T cells. It was demonstrated that the addition of UC-MSC to the culture of CD4+ T cells significantly enhanced IL-9 production by CD4+ T cells. Transwell experiments suggested that UC-MSC promotion of IL-9 production by CD4+ T cells was dependent on cell-cell contact. Upregulated expression of CD106 was observed in UC-MSC co cultured with CD4+ T cells, and the addition of a blocking antibody of CD106 significantly impaired the ability of UC-MSC to promote IL-9 production by CD4+ T cells. Therefore, the results of the present study demonstrated that UC-MSC promoted the generation of IL-9 producing cells, which may be mediated, in part by CD106. The findings may act to expand understanding and knowledge of the immune modulatory role of UC-MSC. PMID- 29042946 TI - The effects of Y-shaped conchal cartilage transplantation on the correction of nasal deformity secondary to cleft lip and its influence on mental health. AB - Patients who undergo corrective surgery for cleft lip are known to be at risk for subsequently developing secondary nasal deformity. The aim of this study was to investigate the effects of Y-shaped conchal cartilage transplantation on the correction of nasal deformity secondary to cleft lip and its influence on mental health. Sixteen patients with nasal deformity secondary to cleft lip admitted to The First People's Hospital Xuzhou (Xuzhou, China) from February 2014 to February 2015 were selected for the study. Conchal cartilage was taken from the patients and made into a Y-shaped stent, which was then transplanted into the nasal columella. The surgical outcomes and patient satisfaction were evaluated and HADS was used to compare the preoperative and postoperative mental health. After the affected side of the nose was corrected, the nasal profiles of 12 patients were significantly improved, the height of nasal columella and nostril was significantly increased, the nasal base and breadth were significantly shorter than those before operation and the nose wing-nasal breadth index on the affected side was significantly increased compared to that before operation and the differences were statistically significant (P<0.05). The satisfaction of each index after the operation was more than 90%. The mental health of patients after operation was notably improved compared to before operation and the difference was statistically significant (P<0.05). After the correction of secondary nasal deformity to cleft lip through Y-shaped conchal cartilage transplantation, the shape of the nasal tip was stable without the recurrence of deformities or distortion on the donor site of the auricle. Y-shaped conchal cartilage transplantation is an ideal treatment method for the moderate and severe secondary nasal deformity to cleft lip and effective perioperative mental intervention can improve the patient's mental health status, an outcome that is worth popularizing in clinical applications. PMID- 29042947 TI - miR-124 inhibits proliferation, migration and invasion of malignant melanoma cells via targeting versican. AB - MicroRNA (miR)-124 has been implicated in malignant melanoma (MM). However, the detailed regulatory mechanism of miR-124 in the malignant phenotypes of MM cells has remained largely elusive. A total of 68 pairs of MM tissues and adjacent tissues were collected. Reverse-transcription quantitative polymerase chain reaction was used to examine the mRNA expression of versican as well as the expression of miR-124, and the protein expression of versican was assessed by western blot analysis. MTT, wound healing and Transwell assays were used to determine cell proliferation, migration and invasion, respectively. A bioinformatics analysis and a luciferase reporter assay were used to confirm the targeting association between miR-124 and versican. miR-124 was significantly downregulated in MM tissues compared with that in adjacent non-tumorous tissues, and decreased expression of miR-124 was associated with increased tumor thickness, advanced clinical stage and node metastasis of MM. Furthermore, the expression levels of miR-124 were also reduced in MM cell lines compared with normal human skin HACAT cells. Forced overexpression of miR-124 caused a significant reduction in the proliferation, migration and invasion of MM A375 cells. Versican was significantly upregulated in MM tissues and cell lines, and was identified as a novel target of miR-124 in A375 cells using a luciferase reporter gene assay, and miR-124 was revealed to negatively regulate the protein expression of versican in A375 cells. Overexpression of versican impaired the suppressive effects of miR-124 on the proliferation, migration and invasion of A375 cells. In conclusion, miR-124 inhibited the malignant phenotypes of MM cells at least partly via inhibition of versican. Therefore, the miR-124/versican axis may be used as a promising therapeutic target for inhibiting MM growth and metastasis. PMID- 29042949 TI - Angina in granulomatosis with polyangiitis: A case report. AB - Granulomatosis with polyangiitis (GPA) often causes small blood vessel lesions in multiple organs, with less impact on large vessels. We report a case involving not only large blood vessels, but also angina. The computed tomographic angiography of large vessels and vascular ultrasonography of the extremity also suggested great arteries of the body were involved. Further cytoplasmic antineutrophil cytoplasmic antibody tests, pathological examination and dynamic chest computed tomography scan confirmed the diagnosis of GPA. Anti-inflammatory therapy and coronary secondary prevention were given after diagnosis by pathological examination and laboratory evaluation. The symptoms of angina pectoris were relieved. This rare case report reminds us that among the well known risk factors of atherosclerotic diseases, GPA is also an important risk factor for acute coronary syndrome. Early foresight for this rare risk factor can improve the early diagnosis and treatment of the disease, which will improve the prognosis of the patients. PMID- 29042948 TI - The efficacy of radiofrequency ablation in the treatment of pediatric arrhythmia and its effects on serum IL-6 and hs-CRP. AB - The aim of this study was to investigate the efficacy of radiofrequency ablation in the treatment of pediatric arrhythmia and to assess the changes in serum interleukin-6 (IL-6) and hs-CRP levels after treatment. Hundred and six children with tachyarrhythmia who were admitted to Xuzhou Children's Hospital from November, 2014 to December, 2015 were recruited for study. The efficacies of radiofrequency in the treatment of different types of arrhythmia were analyzed. Successful ablation was found in 104 cases (98.11%) and recurrence was found in 7 cases (6.73%). Among 62 cases of atrioventricular reentrant tachycardia (AVRT), successful ablation was found in 60 cases (96.77%) and recurrence was found in 3 cases (4.84%). Among 33 cases of atrioventricular nodal reentrant tachycardia (AVNRT), successful ablation was found in 33 cases (100%) and recurrence was found in 2 cases (6.06%). Among 5 cases of ventricular tachycardia (VT), successful ablation was found in 5 cases (100%) and no recurrence was found. Among 4 cases of atrial tachycardia (AT), successful ablation was found in 4 cases (100%) and recurrence was found in 1 case (25%). Among 2 cases of atrial flutter (AFL), successful ablation was found in both (100%) and recurrence was found in 1 case (50%). After operation, the levels of IL-6 and hs-CRP were increased and were continually increased within 6 h after operation. The levels of IL-6 and hs-CRP at 24 h after operation were reduced but still higher than preoperative levels. The duration of radiofrequency and ablation energy were positively correlated with the levels of IL-6 and hs-CRP, while the number of discharges was not significantly correlated with either. In conclusion, radiofrequency ablation is a safe and effective treatment for pediatric arrhythmia. Postoperative monitoring of IL-6 and hs-CRP levels is conducive to understanding postoperative myocardial injury and inflammatory response. PMID- 29042950 TI - Expression of CCR3, SOX5 and LC3 in patients with elderly onset rheumatoid arthritis and the clinical significance. AB - This study investigated the expression of C-C chemokine receptor type 3 (CCR3), transcription factor SOX5 (SOX5) and microtubule-associated protein 1 light chain 3 (LC3) in patients with elderly onset rheumatoid arthritis (EORA) and the clinical significance. Ninety patients with elderly onset rheumatoid arthritis were selected in our hospital from January to December in 2016 to serve as patient group. At the same time, 50 healthy people were selected as control group. Levels of CCR3, SOX5 and LC3 in serum of two groups were detected by enzyme-linked immunosorbent assay (ELISA). Expression levels of CCR3, SOX5 and LC3 mRNA in peripheral blood mononuclear cells (PBMCs) were detected by reverse transcription-PCR (RT-PCR). Expression level of CCR3 mRNA in patient group was 0.752+/-0.054, which was significantly higher than that in control group (0.287+/ 0.032, t=8.932, P<0.05). Levels of CCR3, SOX5 and LC3 in serum of patients in patient group were significantly higher than those in control group (P<0.05). Positive correlations were found between serum levels of CCR3 and SOX5 (r=0.613, P<0.05), serum levels of CCR3 and LC3 (r=0.637, P<0.05), and serum levels of SOX5 and LC3 (r=0.645, P<0.05). CCR3, SOX5 and LC3 are highly expressed in PBMC and serum, which may be closely related to the occurrence and development of EORA. These indexes may be used as indicators of clinical diagnosis and prognosis of patients with EORA. PMID- 29042951 TI - Ursolic acid suppresses TGF-beta1-induced quiescent HSC activation and transformation by inhibiting NADPH oxidase expression and Hedgehog signaling. AB - Activation of quiescent hepatic stellate cells (q-HSCs) and their transformation to myofibroblasts (MFBs) is a key event in liver fibrosis. Hedgehog (Hh) signaling stimulates q-HSCs to differentiate into MFBs, and NADPH oxidase (NOX) may be involved in regulating Hh signaling. The author's preliminary study demonstrated that ursolic acid (UA) selectively induces apoptosis in activated HSCs and inhibits their proliferation in vitro via negative regulation of NOX activity and expression. However, the effect of UA on q-HSCs remains to be elucidated. The present study aimed to investigate the effect of UA on q-HSC activation and HSC transformation and to observe alterations in the NOX and Hh signaling pathways during q-HSC activation. q-HSC were isolated from adult male Sprague-Dawley rats. Following culture for 3 days, the cells were treated with or without transforming growth factor-beta1 (TGF-beta1; 5 ug/l); intervention groups were pretreated with UA (40 uM) or diphenyleneiodonium chloride (DPI; 10 uM) for 30 min prior to addition of TGF-beta1. mRNA and protein expression of NOX and Hh signaling components and markers of q-HSC activation were examined by western blotting and reverse transcription-polymerase chain reaction. TGF-beta1 induced activation of q-HSCs, with increased expression of alpha-smooth muscle actin (alpha-SMA) and type I collagen. In addition, expression of NOX subunits (gp91phox, p67phox, p22phox, and Rac1) and Hh signaling components, including sonic Hh, sterol-4-alpha-methyl oxidase, and Gli family zinc finger 2, were upregulated in activated HSCs. Pretreatment of q-HSCs with UA or DPI prior to TGF beta1 significantly downregulated expression of NOX subunits and Hh signaling components and additionally inhibited expression of alpha-SMA and type I collagen, thereby preventing transformation to MFBs. UA inhibited TGF-beta1 induced activation of q-HSCs and their transformation by inhibiting expression of NOX subunits and the downstream Hh pathway. PMID- 29042952 TI - Protective effect of ulinastatin on severe pulmonary infection under immunosuppression and its molecular mechanism. AB - The objective of the present study was to investigate the protective effect of ulinastatin on severe pulmonary infection under immunosuppression, and its molecular mechanism. Mice were treated with methylprednisolone and lipopolysaccharide (LPS) to establish the model of severe pulmonary infection under immunosuppression. Mice were randomly divided into group A (model group; treated with equal volumes of saline), group B (treated with 1*105 U/kg ulinastatin), and group C (normal control group). Bronchoalveolar lavage fluid (BALF) was collected, and the concentrations of cytokines in BALF were measured by enzyme-linked immunosorbent assay (ELISA). Pathological changes in lung tissues were observed by hematoxylin and eosin (H&E) staining. The mRNA levels of M1 and M2 macrophage markers in lung tissues were detected by real-time polymerase chain reaction (PCR). Specific protein levels in lung tissues were measured by western blotting. Apoptosis in lung tissues was detected by the terminal-deoxynucleoitidyl transferase mediated nick end-labeling (TUNEL) method. The concentrations of TNF-alpha, IL-6, and IL-1beta in BALF, the mRNA levels of the three M1 macrophage markers, and the protein levels of p-Janus Kinase 2 (p JAK2), p-signal transducer and activator of transcription-3 (p-STAT-3), cleaved caspase-9, and cleaved poly-ADP-ribose polymerase (PARP), and the number of apoptotic cells in lung tissues in group A were significantly higher than those in groups B and C (P<0.05), whereas the concentrations of IL-4, IL-10, and IL-13 and the mRNA levels of the three M2 macrophage markers were significantly lower than those in groups B and C (P<0.05). Immunofluorescence showed that the nuclei of lung epithelial macrophages in group A became smaller and moved towards the side of nuclear membranes. In conclusion, ulinastatin can improve the inflammatory response caused by severe infection under immunosuppression, which balances the inflammatory microenvironment and inhibits apoptosis at least partially through inhibiting JAK2/STAT-3 and/or caspase pathway activity, ultimately playing a role in lung protection. PMID- 29042953 TI - Oral colon-specific drug delivery system reduces the nephrotoxicity of rhubarb anthraquinones when they produce purgative efficacy. AB - Rhubarb is commonly used to treat constipation in China and anthraquinones (AQs) are the active components present in rhubarb. However, an increasing number of studies have reported that AQs induce nephrotoxicity. In the present study, rhubarb total free anthraquinones (RTFA) oral colon-specific drug delivery granules (RTFA-OCDD-GN) were prepared to determine whether RTFA-OCDD-GN could reduce the nephrotoxicity that occurs when AQs produce purgative efficacy. RTFA OCDD-GN were prepared using pH-enzyme double-layer coating technology and the cumulative release rate of RTFA in RTFA-OCDD-GN was assessed. The first black stool time, the number and state of feces over 8 h were observed to measure the purgative efficacy. In the nephrotoxicity test, biochemical and histopathological examinations were performed following 20 and 40 days administration, and 20 days convalescence. The cumulative release rate of RTFA in RTFA-OCDD-GN was >80% in simulated colonic fluid. RTFA-OCDD-GN produced considerable purgative efficacy compared with rhubarb medical material samples (RMMS). Following 40 days RMMS administration, blood urea nitrogen, creatinine and urine beta2-microglobulin levels in the high-dosage group were significantly increased compared with the control and RTFA-OCDD-GN groups (P<0.05). All specimens from the high-dosage RMMS group exhibited swelling/degeneration of renal proximal convoluted tubule epithelial cells. No difference in pathological conditions and biochemical indicators was detected between the RTFA-OCDD-GN groups and the control group. The nephrotoxicity of AQs was significantly reduced following RTFA-OCDD-GN administration, which produced considerable purgative efficacy compared with RMMS. PMID- 29042954 TI - Dexmedetomidine ameliorates the inflammatory immune response in rats with acute kidney damage. AB - It has been demonstrated that dexmedetomidine (Dex) can protect patients with acute kidney injury from experiencing further tissue damage, however its mechanism of action remains unclear. The present study investigated the immune modulatory functions of Dex in rats with acute kidney injury (AKI) induced via injection of lipopolysaccharide into the tail vein. ELISA analysis showed that Dex reduced the levels of inflammatory cytokines in rats with AKI in a dose dependent manner. Furthermore, the regulatory effects of Dex on cytokine production disappeared when the alpha-2 adrenergic receptor antagonist Yohimbine (YOH) was added. For a detailed investigation on how Dex regulates the immune response in rats with AKI, the impact of Dex on the viability of splenocytes and lymphocytes was determined and it was determined that Dex did not influence splenocyte and lymphocyte viability. In addition, ELISA tests showed that Dex regulated the production of the T-helper (Th) 17 cytokines interleukin (IL)-17 and IL-23, but not the Th1 cytokine tumor necrosis factor alpha, in splenocytes and lymphocytes. To confirm whether Dex functioned as an alpha-2-adrenergic receptor in these immune regulations, YOH was administered together with Dex. When Dex and YOH were administered together, the regulatory functions of Dex were reduced, confirming that Dex acted as an agonist on the alpha-2-adrenergic receptor. Thus the results of the current study may provide novel insights regarding how Dex modulates immune functions in AKI. PMID- 29042955 TI - Intramyocardial delivery of bFGF with a biodegradable and thermosensitive hydrogel improves angiogenesis and cardio-protection in infarcted myocardium. AB - Basic fibroblast growth factor (bFGF), a known angiogenic factor, may provide a potential strategy for the treatment of myocardial infarction (MI), but it is limited by a relatively short half-life. Dex-PCL-HEMA/PNIPAAm hydrogel provides a reservoir for the controlled release of growth factors. The aim of the current study was to evaluate the effects of bFGF incorporated into a Dex-PCL HEMA/PNIPAAm hydrogel on angiogenesis and cardiac health in a rat model of acute MI, induced by coronary artery ligation. Phosphate-buffered solution (PBS group), Dex-PCL-HEMA/PNIPAAm hydrogel (Gel group), bFGF in phosphate-buffered solution (bFGF group) or bFGF in hydrogel (Gel + bFGF group) was injected into a peri infarcted area of cardiac tissue immediately following MI. On day 30 post surgery, cardiac function was assessed by echocardiography, apoptosis index by terminal deoxynucleotidyl transferase dUTP nick-end labeling assessment and vascular development by immunohistochemical staining. The findings demonstrated that injection of bFGF along with hydrogel induced angiogenesis, reduced collagen content, MI area and cell apoptosis and improved cardiac function compared with the injection of either bFGF or hydrogel alone. bFGF incorporated with Dex-PCL HEMA/PNIPAAm hydrogel injection induces angiogenesis, attenuates cardiac remodeling and improves cardiac function following MI. PMID- 29042957 TI - Ursolic acid inhibits breast cancer growth by inhibiting proliferation, inducing autophagy and apoptosis, and suppressing inflammatory responses via the PI3K/AKT and NF-kappaB signaling pathways in vitro. AB - Breast cancer, which is the second leading cause of cancer-associated mortality in women worldwide, develops from breast tissue. Chemotherapy is the most commonly used therapy to treat breast cancer. However, a number of natural plant derived products have been suggested as alternative therapies to treat different types of cancer, such as breast cancer. The aim of the present study was to determine the anti-tumor effects of ursolic acid and its effect on apoptosis and inflammation in breast cancer cells. The anti-cancer effects of ursolic acid were evaluated in vitro using flow cytometry, western blotting and reverse transcription-quantitative polymerase chain reaction. The results suggest that ursolic acid inhibits the viability of breast cancer cells by inducing autophagy and apoptosis without inducing cell death. Cellular migration assays demonstrated that ursolic acid was able to suppress the invasive ability of breast cancer cells (P<0.05). In addition, the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) pathway was downregulated following ursolic acid administration (P<0.05), leading to an upregulation of glycogen synthase kinase activity (P<0.05) and downregulation of B-cell lymphoma 2 (P<0.05), subsequently causing autophagy and apoptosis via cyclin-D1 inhibition and caspase-3 stimulation (P<0.05). Furthermore, the inflammatory response of breast cancer cells was assessed by measuring levels of nuclear factor (NF)-kappaB. Ursolic acid was found to downregulate NF-kappaB in breast cancer cells, thus inhibiting inflammation and preventing the progression of breast cancer (P<0.05). To the best of our knowledge, the present study is the first to assess the effect of ursolic acid on breast cancer cells through PI3K/AKT-regulated GSK and caspase-3 accompanied by NF-kappaB signaling pathways. The results of the present study regarding the potential underlying molecular mechanisms of ursolic acid may be used to develop novel therapeutic strategies for breast cancer treatment. PMID- 29042956 TI - Evaluation of the hemodynamics and right ventricular function in pulmonary hypertension by echocardiography compared with right-sided heart catheterization. AB - The present study aimed to evaluate hemodynamics and right ventricular function in patients with pulmonary hypertension (PH) using transthoracic echocardiography and to compare these results with measurements obtained using right-sided heart catheterization (RHC). A total of 75 patients with PH were examined using echocardiography and RHC. Patients were divided into the following two groups according to their difference between SPAPecho and SPAPRHC measurement: The overestimated group and underestimated group. The overestimated group included the subgroups groupover-A (difference <20 mmHg) and groupover-B (difference >=20 mmHg), and the underestimated group included groupunder-A (absolute value of the difference <20 mmHg) and groupunder-B (absolute value of the difference >=20 mmHg). SPAPecho measurements were revealed to be significantly positively correlated with SPAPRHC measurements (r=0.794; P<0.01). Among all echocardiographic measurements, only tricuspid annular plane systolic excursion (TAPSE) was significantly different between groups; it was increased in groupover A and groupunder-A compared with groupover-B (P<0.01). Although SPAP measurements obtained using echocardiography were significantly positively correlated with those obtained using RHC, a high proportion of overestimation or underestimation of SPAP by echocardiography remained. PMID- 29042958 TI - Expression of LOX-1 in human mesangial cells is increased by Ox-LDL and IL-1beta treatment. AB - The present study aimed to determine whether the expression of lectin-like oxidized LDL receptor 1 (LOX-1) could be induced by oxidized low-density lipoprotein (Ox-LDL) and interleukin 1beta (IL-1beta) in human mesangial cells (HMCs). Oil Red O staining was used to observe the uptake of Ox-LDL by HMCs stimulated with IL-1beta, and reverse transcription-quantitative polymerase chain reaction analysis and western blotting were used to examine the expression of LOX 1 in HMC following Ox-LDL and IL-1beta treatment. Uptake of Ox-LDL by HMCs was upregulated upon stimulation with IL-1beta. Furthermore, Ox-LDL (10-40 ug/ml) treatment induced LOX-1 mRNA and protein expression in a dose-dependent manner. In addition, when HMCs were treated with IL-1beta and Ox-LDL, the expression of LOX-1 was enhanced further. These results indicated that inhibiting LOX-1 expression or inhibiting the Ox-LDL/LOX-1 signaling axis may be a potential novel method for treating renal disease. PMID- 29042959 TI - Diagnosis of cobalamin C deficiency with renal abnormality from onset in a Chinese child by next generation sequencing: A case report. AB - The aim of the present study was to present the diagnosis and treatment course of a patient with cobalamin C deficiency (cblC) hospitalized with renal function abnormality from the onset. A female, 7-year-old patient who presented with a cough and progressive dyspnea for 1 day was admitted to the Children's Hospital of Nanjing Medical University (Nanjing, China). A routine clinical examination was performed, including physical examination, routine blood and urine tests, blood gas analysis, computed tomography scans of the head, chest and abdomen, electrocardiogram, echocardiography and abdominal ultrasonography. In addition, laboratory tests were performed, including tests for viral infection and markers of autoimmunity, humoral immunity, myocardial enzymes and tumors. Tandem mass analysis and renal biopsy were conducted. Next generation sequencing (NGS) was performed to identify mutated genes, and structural investigation was conducted to identify the key residue mutations in the patient. Routine clinical examination revealed that the patient had multiple organ failure, indicating the presence of metabolic disease. Tandem mass analysis and renal biopsy also indicated that the patient had methylmalonic acidemia (MMA) and thrombotic microangiopathy combined with focal renal cortical necrosis. Furthermore, next generation sequencing identified the presence of two heterozygous mutations in the MMA cblC type with homocystinuria (MMACHC) gene. Structural analysis demonstrated that the two mutations were in key components of the MMACHC protein. The patient was finally diagnosed with cblC according to the results obtained. In conclusion, NGS may aid in the diagnosis and therapeutic management of cblC with renal abnormality from the onset in children. PMID- 29042960 TI - Application of 3D printing rapid prototyping-assisted percutaneous fixation in the treatment of intertrochanteric fracture. AB - The aim of the present study was to investigate the application of 3D printing (3DP) rapid prototyping (RP) technique-assisted percutaneous fixation in the treatment of femoral intertrochanteric fracture (ITF) using proximal femoral nail anti-rotation (PFNA). A total of 39 patients with unstable ITF were included in the current study. Patients were divided into two groups: 19 patients were examined using computed tomography scanning and underwent PFNA with SDP-RP whereas the other 20 patients underwent conventional PFNA treatment. Anatomical data were converted from the Digital Imaging and Communications in Medicine format to the stereolithography format using M3D software. The 3DP-RP model was established using the fused deposition modeling technique and the length and diameter of the main screw blade was measured during the simulation. The postoperative femoral neck-shaft angle (NSA), surgery duration, intraoperative and postoperative blood loss, and the duration of hospital stay were recorded and compared with the corresponding values in conventional surgery. No significant differences were observed in mean PFNA size between the implants used and the preoperative planning estimates. It was demonstrated that the 3DP-RP assisted procedure resulted in more effective reduction of the NSA. Furthermore, patients undergoing 3DP-RP experienced a significant reduction in duration of surgery (P<0.01), as well as reductions in intraoperative (P=0.02) and postoperative (P=0.03) blood loss, compared with conventional surgery. At 6 months post surgery, no cases of hip varus/vague deformities or implant failure were observed in patients that underwent either the 3DP-RP-assisted or conventional procedure. The results of the present study suggest that the 3DP-RP technique is able to create an accurate model of the ITF, which facilitates surgical planning and fracture reduction, thus improving the efficiency of PFNA surgery for ITFs. PMID- 29042961 TI - The long non-coding RNA AK023948 enhances tumor progression in hepatocellular carcinoma. AB - The long non-coding RNAs (lncRNAs) have been demonstrated to play pivotal roles in a broad range of processes including tumor biology. However, the exact contributions of lncRNAs to hepatocellular carcinoma (HCC) remain poorly defined. In current study, we have unraveled a novel function of AK023948 in HCC. We found that AK023948 was substantially upregulated in tumor tissues. Meanwhile, higher AK023948 expression correlated with poor survival. Upregulation of AK023948 expression can promote HepG2 and Hep3B proliferation and invasion in in vitro experiments. Furthermore, AK023948 also decreased tumor growth in vivo. The tumorigenic role of AK023948 was partially ascribed to PI3K/Akt/mTOR signaling and AK023948 knockdown decreased pathway activation and tumor growth. These data collectively suggest an oncogenic role for AK023948 and may provide potential insight into therapeutic intervention. PMID- 29042962 TI - MicroRNA-138 directly targets TNFAIP8 and acts as a tumor suppressor in osteosarcoma. AB - MicroRNAs (miRs) have a critical role in the development and malignant progression of osteosarcoma (OS), but the underlying mechanisms have largely remained elusive. The present study aimed to explore the regulatory role of miR 138 in OS growth and metastasis and investigated the associated mechanisms. Reverse-transcription quantitative polymerase chain reaction and western blot analysis were performed to examine the miR-138 and protein expression levels in OS and normal bone tissues and cell lines. An MTT assay and a Transwell assay were used to assess cell proliferation and invasion. Flow cytometry was used to analyze the cell cycle and determine the apoptotic rate. A luciferase reporter assay was used to confirm the targeting association between miR-138 and tumor necrosis factor-alpha-induced protein 8 (TNFAIP8). It was found that miR-138 was downregulated in OS tissues and cell lines. Overexpression of miR-138 decreased the proliferation, cell cycle progression and invasion of OS cells, while inducing cell apoptosis. TNFAIP8 was then identified as a novel target of miR 138. Similarly to the effects of miR-138 overexpression, inhibition of TNFAIP8 also inhibited OS cell proliferation, cell cycle progression and invasion, and induced cell apoptosis. In addition, miR-138 overexpression as well as downregulation of TNFAIP8 reduced OS cell invasion via inhibition of matrix metalloproteinase-2 and -9 expression. Taken together, the results of the present study demonstrated that miR-138 directly targets TNFAIP8 and acts as a tumor suppressor in OS, suggesting that the miR-138/TNFAIP8 interaction may become a promising therapeutic target for OS. PMID- 29042963 TI - Warm sparse-dense wave inhibits cartilage degradation in papain-induced osteoarthritis through the mitogen-activated protein kinase signaling pathway. AB - Cartilage degradation is an important in the pathogenesis of osteoarthritis (OA). Abnormal activation of the mitogen-activated protein kinase (MAPK) signaling pathway in chondrocytes promotes an inflammatory response, resulting in the release of chondral matrix-degrading enzymes that accelerate the degradation of cartilage. As a non-pharmaceutical and non-invasive physical therapy regimen, warm sparse-dense wave (WSDW) has been successfully used for the treatment of OA. However, it remains unclear whether WSDW inhibits cartilage degradation in OA through the MAPK signaling pathway. The present study investigated the effects of WSDW on papain-induced OA in rat knee joints. Papain-induced OA was established in rats, which were subsequently divided into a model group and three experimental groups that received a WSDW with the following ratios: WSDW=1:1, WSDW=1:2 and WSDW=2:1. After 12 weeks of treatment, cartilage degradation was evaluated by Mankin scoring of paraffin-embedded sections stained with hematoxylin and eosin. The changes in cartilage structure were observed by transmission electron microscopy, and the expressions of RAS, extracellular signal-regulated kinase (ERK), p38 and p53 were measured by reverse transcription quantitative polymerase chain reaction and western blot analysis. WSDW was demonstrated to improve the arrangement of collagen fibers, inhibit the tidemark replication and delay cartilage degradation in papain-induced OA. The expressions of RAS, ERK, p38 and p53 in the WSDW (1:2) and (2:1) groups were significantly decreased when compared with the model group (P<0.01). Furthermore, amongst the WSDW groups, the inhibitory effects of the WSDW (1:2) group were typically greater than those of the WSDW (1:1) and (2:1) groups. The results indicate that WSDW may inhibit cartilage degradation in papain-induced OA in rat knee joints by regulating the MAPK signaling pathway. PMID- 29042964 TI - In utero repair of fetal rat myelomeningocele affects neuromuscular development in the bladder. AB - Fetal repair of myelomeningocele (MMC) has been proven to be beneficial for the central nervous system development; however, the effect of fetal MMC repair on bladder function remains controversial. The objective of the present study was to establish an early timepoint for in utero MMC repair using a rat model, and to investigate the changes in bladder development subsequent to that intervention. Sprague Dawley rats were divided into the MMC, MMC repair and control groups. MMC rat fetus models were created by treating pregnant rats with all-trans retinoic acid. The MMC defect was then repaired in utero at embryonic day 17 (E17) using a chitosan-gelatin membrane patch. Fetal rat bladders were removed at E19 and E21 in each group, as well as at stage E17 in the MMC and control groups. Differential expression of beta-III-tubulin, alpha-smooth muscle actin (alpha SMA), nerve growth factor (NGF) and acetylcholinesterase (AChE) mRNA, and beta III-tubulin and alpha-SMA protein in the bladder following fetal repair was measured and compared among the three groups. In addition, the expression of NGF mRNA was significantly elevated at E21 in the MMC group compared with that of the control group, however, the level decreased in the repair group at stage E21. The expression of alpha-SMA mRNA significantly increased at E19 and then decreased at E21 in the repair group compared with that of the MMC group; however, there were no significant changes in alpha-SMA protein following the repair. Furthermore, the repair enhanced beta-III-tubulin mRNA expression at E19, but ameliorated the decrease of beta-III-tubulin protein at E21. The expression of AChE mRNA increased in the MMC group at E19 and E21 compared with that of the control group, although it was not significantly altered following repair as compared with that of the MMC group. In conclusion, in the current study, abnormal neuromuscular development was observed in the MMC bladder, which enabled a certain degree of improvement in the in utero MMC repair. PMID- 29042965 TI - Overexpression of let-7a increases neurotoxicity in a PC12 cell model of Alzheimer's disease via regulating autophagy. AB - Increased deposition of beta-amyloid (Abeta) protein is one of the typical characteristics of Alzheimer's disease (AD). Recent evidence has demonstrated that the microRNA let-7 family, which is highly expressed in the central nervous system, participates in the regulation of pathologic processes of AD. In the present study, the effect of let-7a overexpression on Abeta1-40-induced neurotoxicity was evaluated in PC12 and SK-N-SH cells. The results indicated that overexpression of let-7a enhanced the neurotoxicity induced by Abeta1-40 in PC12 and SK-N-SH cells. In addition, the apoptosis induced by Abeta1-40 in PC12 and SK N-SH cells was increased by let-7a overexpression. Furthermore, Abeta1-40 treatment increased the protein levels of microtubule-associated protein 1A/1B light chain 3 (LC3) and beclin-1 and increased the LC3 II/I ratio. The mRNA expression levels of beclin-1, autophagy protein 5 (Atg-5) and Atg-7 were also increased by Abeta1-40 treatment in PC12 cells. Let-7a overexpression further upregulated the above autophagy-related markers. Furthermore, the protein level of p62 was increased by Abeta1-40 treatment, and this was further enhanced by let 7a overexpression. Finally, the present results demonstrated that the phosphoinositide-3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) signaling pathway was involved in the autophagy regulation by let-7a. In conclusion, the present study demonstrates that the neurotoxicity induced by Abeta1-40 is augmented by let-7a overexpression via regulation of autophagy, and the PI3K/Akt/mTOR signaling pathway also serves a function in this process. PMID- 29042966 TI - Effects of RPE-conditioned medium on the differentiation of hADSCs into RPE cells, and their proliferation and migration. AB - Age-related macular degeneration (AMD) is associated with the dysfunction and death of the retinal pigment epithelium (RPE). Recently, there has been increasing interest in stem cell-derived RPE cells for cell replacement therapies, such as those for AMD. The present study investigated whether RPE conditioned medium (RPECM) could promote the differentiation of human adipose tissue-derived mesenchymal stromal cells (hADSCs) into RPE cells, and enhance the proliferation and migration of these cells. Reverse-transcription quantitative polymerase chain reaction analysis demonstrated that RPECM induced hADSCs to differentiate into cells expressing RPE markers, including retinoid isomerohydrolase (RPE65), cytokeratin (CK8) and Bestrophin, which were identified to be significantly upregulated by ~10-fold, 3.5-fold and 2.4-fold, respectively, compared with the control group [hADSCs cultured in ADSC-conditioned medium (ADSCCM)]. The immunocytochemistry and western blot analysis results demonstrated that the protein levels of RPE65, CK8 and Bestrophin were significantly increased in RPECM-treated hADSCs. In addition, Cell Counting Kit-8 analysis demonstrated that RPECM promoted the proliferation of induced cells. RPECM also increased the expression level of the cell proliferative marker Ki-67. Furthermore, to evaluate the migration potential, cell migration assays were performed. These assays demonstrated that following RPECM treatment hADSCs migrated more quickly compared with the control group. The results of the present study suggest that RPECM induces hADSCs to differentiate into RPE cells with higher proliferative and migratory potentials, which may aid in applications for hADSCs in RPE regenerative therapy. PMID- 29042967 TI - A case-control study on the treatment of protrusion of lumbar intervertebral disc through PELD and MED. AB - We compared the clinical effects between the percutaneous endoscopic lumbar discectomy (PELD) and microendoscopic discectomy (MED) treatments for protrusion of lumbar intervertebral disc. We conducted a retrospective analysis on 60 patients who were diagnosed with single-segment protrusion of lumbar intervertebral disc during the period from January 2009 to June 2016. Patients were divided into two groups, the PELD and MED groups, which contained 30 cases each. We evaluated the operation results according to oswestry dysfunction index (ODI), visual analogue scale (VAS) and the improved MacNab standard. The average follow-up visit period after the operation was 18 months and the operation time of the two groups was not statistically different. The cadaverine quantity of bleeding in the PELD group is less than that in the MED group. Moreover, the average length of incision and the length of stay were shortened for the PELD group compared to the MED group. The ODI and VAS after operation for the two groups improved significantly compared to that before operation (P<0.05). The qualified rates of the PELD and MED groups were 93.0 and 90.0%, respectively, as of the improved MacNab method. The complication occurrence rates for the two groups during perioperative period were not different. Therefore, the short-term efficacy of the two minimally invasive operation methods (PELD and MED) on the treatment of protrusion of lumbar intervertebral disc is satisfactory. In cases where operation indications are chosen strictly, PELD can be regarded as a method of safety and efficiency due to the advantages of minimal incision, less bleeding, minimal trauma and faster postoperative recovery. PMID- 29042968 TI - Hesperetin alleviates renal interstitial fibrosis by inhibiting tubular epithelial-mesenchymal transition in vivo and in vitro. AB - Hesperetin (HES) is a flavonoid that has been reported to exert protective effects against cardiac remodeling, lung fibrosis and hepatic fibrosis. However, reports on the effects and potential mechanisms of HES in renal fibrosis are limited. In the present study, a unilateral ureteric obstruction (UUO) mouse model and a transforming growth factor (TGF)-beta1-activated normal rat kidney (NRK)-52E cell model were established. HES was subsequently administered to these models to evaluate its anti-fibrotic effects and potential underlying mechanisms of action. The results demonstrated that HES reduced obstruction-induced renal injury and deposition of the extracellular matrix components collagen-I and fibronectin in UUO mouse kidneys (P<0.05). Furthermore, HES treatment significantly suppressed EMT, as evidenced by decreased expression of alpha smooth muscle actin and E-cadherin, (P<0.05). Additionally, HES inhibited the hedgehog signaling pathway in UUO mice and TGF-beta1-treated NRK-52E cells. The present findings indicate that HES treatment may inhibit EMT and renal fibrosis in vivo and in vitro by antagonizing the hedgehog signaling pathway. PMID- 29042969 TI - Silencing of TCTN1 inhibits proliferation, induces cell cycle arrest and apoptosis in human thyroid cancer. AB - Tectonic family member 1 (TCTN1) is one of the tectonic family members, and a regulator of the hedgehog signaling pathway, which has been studied in various cancer types, including prostate and pancreatic cancer. However, its function in thyroid cancer has not been well documented. Therefore, the present study investigated the function of TCTN1 in thyroid cancer using a loss-of-function assay. Lentivirus-mediated RNA interference was applied to downregulate TCTN1 in the thyroid cancer cell lines, CAL62 and 8305C. A series of functional properties, including cell viability, colony formation, cell cycle and apoptosis were determined using MTT, colony formation assay and flow cytometry analyses, respectively. The results demonstrated that lentivirus-medicated RNAi could specifically suppress the expression of TCTN1 at the mRNA and protein levels in CAL62, and 8305C cells. Knockdown of TCTN1 inhibited cell growth and proliferation via inducing S phase arrest, and apoptosis. Mechanistically, the S phase arrest was accompanied by the upregulation of cyclin dependent kinase 2, cyclin A2 and downregulation of cyclin B1. Knockdown of TCTN1 induced apoptosis through increasing the expression of Bcl2-associated agonist of cell death, cleaved caspase-3 and poly(ADP-ribose)polymerase, and decreasing apoptosis regulator Bcl-2 expression. The current study highlights the essential role of TCTN1 in promoting thyroid cancer cell proliferation, and its knockdown may serve as a potential therapeutic treatment for thyroid cancer. PMID- 29042970 TI - Effects of 17-DMAG on diffuse large B-cell lymphoma cell apoptosis. AB - 17-dimethylaminoethylamino-17-demethoxygeldanamycin (17-DMAG) is a water soluble, semisynthetic derivative of endotoxin that has anticancer effects. The aim of the present study was to determine whether 17-DMAG enhances the apoptosis of lymphoma cells in diffuse large B-cell lymphoma. Apoptosis was induced in SU-DHL-4 diffuse large B-cell lymphoma cells treated with 17-DMAG, as evaluated by MTT assay and flow cytometry analysis. Apoptosis-associated protein levels were assessed using western blotting, and the results indicated that B-cell lymphoma 2 (Bcl-2) associated protein X (Bax) was upregulated, whereas heat shock protein family A member 5 (HSPA5) and Bcl-2 were downregulated. Additionally, staining with 5,5',6,6'-Tetrachloro-1,1',3,3'-tetraethyl-imidacarbocyanine iodide revealed that treatment with 17-DMAG decreased mitochondrial membrane potential in SU-DHL-4 diffuse large B-cell lymphoma cells. These results suggested that 17-DMAG is able to inhibit proliferation in diffuse large B-cell lymphoma cells in a concentration-dependent manner. The underlying mechanism may be that 17-DMAG induces oxidative stress, which inhibits the expression of HSPA5 and Bcl-2 and promotes the expression of Bax, leading to the apoptosis of SU-DHL-4 cells. Taken together, these results indicated that 17-DMAG may be an effective novel agent for the treatment of diffuse large B-cell lymphoma. PMID- 29042971 TI - Histological evidence of reparative activity in chorioamniotic membrane following open fetal surgery for myelomeningocele. AB - An increased understanding of the reparative process in fetal membrane following surgical techniques may be helpful to decrease the risks to mother and fetus and avoid adverse pregnancy outcomes. The present study discusses histological evaluation of the fetal membrane following open fetal surgery. Chorioamniotic membranes (n=10) were obtained following birth from pregnancies that underwent open fetal surgery for myelomeningocele. The collagen distribution was quantified using picrosirius-polarization method comparing the suture site with non-suture site. The differences between the collagen fiber percentages at the two sites was evaluated by the paired t-test with P<0.05. The mean gestational age of fetal surgery was 26.09+/-0.3 and 33.81+/-0.82 weeks at birth. The picrosirius red sign was more intense at the suture site, primarily associated with collagen type 1. Collagen observed in the surgical area was significantly increased (13.22+/ 2.84%) compared with the non-surgical area (6.16+/-1.09%; P<0.0001). It was observed that the reparative activity at the suture site of the fetal membrane was characterized by a significant increase in collagen fibers. The findings suggest nascent collagen synthesis, tissue remodeling and repair of suture site, a mechanism likely to prevent the amniotic fluid leakage and maintain pregnancy following open fetal surgery. PMID- 29042972 TI - Expression and association of VEGF-Notch pathways in infantile hemangiomas. AB - The vascular endothelial growth factor (VEGF) and Notch signaling pathways have been identified to be involved in the neovascularization, and angiogenesis of various tumor types. However, there is little data regarding their roles and association in infantile hemangiomas (IHs). In the present study, the significance and association of the VEGF-VEGF receptor (R)2, and delta like canonical Notch ligand 4 (Dll4)-Notch1 pathways in different clinical phases of IHs were investigated. Specimens in the proliferating phase (n=15) and involuting phase (n=12) were collected. Quantitative polymerase chain reaction was used to analyze the mRNA levels of VEGF, VEGFR2, Dll4 and Notch1. A further 61 paraffin embedded IHs (26 in the proliferating group and 35 in the involuting group) specimens were collected to investigate the protein levels of Notch1 and Dll4 using immunohistochemistry, and then analyzed for the association between these factors and microvessel density (MVD). The relative expression levels of VEGF, VEGFR2 and Dll4 mRNA in the proliferating group were significantly higher compared with that in the involuting group. In addition, the relative levels of Notch1 mRNA were similar in the proliferating and involuting phases. Expression levels of VEGFR2 and Dll4 mRNA were positively correlated with Notch1 expression in the proliferating IHs. The relative expression of VEGFR mRNA was positively correlated with Dll4 in the proliferating and involuting groups. Immunohistochemical staining demonstrated that Notch1 and Dll4 protein were upregulated in the proliferating IHs compared with the control group. In the proliferating IHs, Notch1 and Dll4 protein expression levels were positively correlated with MVD, while in the involuting phase, only Dll4 was positively correlated with MVD. The expression levels of related factors in the VEGF and Notch pathways, and the associations among them suggest that they may be involved in the regulation of IH neovascularization and angiogenesis. PMID- 29042973 TI - The efficacy of microsurgery in the treatment of cerebral aneurysm rupture and its effect on NF-kappaB, MCP-1 and MMP-9. AB - The clinical efficacy of microsurgical neck clipping for the treatment of cerebral aneurysm rupture and its effect on serum nuclear factor kappa-light chain-enhancer of activated beta cells (NF-kappaB), monocyte chemoattractant protein-1 (MCP-1) and matrix metalloproteinase-9 (MMP-9) levels were investigated. A total of 56 patients with first occurrence of cerebral aneurysm rupture were enrolled from June 2015 to June 2016. These patients were divided into control (25 patients) and observation groups (31 patients) according to treatment received. The patients in the control group were treated with interventional embolization and extraventricular drainage, while the patients in the observation group were treated with microsurgical neck clipping. Serum NF kappaB, MCP-1 and MMP-9 levels were measured by ELISA prior to the operation and at 6 h post-operation. Clinical effects were compared at the 6-month follow-up. There was no significant difference in the success rate of the operation between the two groups (p>0.05). The incidence of complications in the observation group was significantly lower than that in the control group (p<0.05). The Glasgow Outcome Scale score was significantly improved in the observation group (p<0.05) compared with the control group. Serum NF-kappaB, MMP-9 and MCP-1 were significantly decreased in both groups at 6 and 24 h after operation, but the observational group showed significantly lower levels for all three proteins than the control group (p<0.05). The application of early microsurgical neck clipping for the treatment of cerebral aneurysm rupture can reduce complications and improve clinical prognosis, and this may be related to a decrease in serum inflammatory response-related factors (NF-kappaB and MCP-1) and MMP-9. PMID- 29042974 TI - Curative effect of laparoscopic hysterectomy for uterine fibroids and its impact on ovarian blood supply. AB - This study evaluates the curative effects laparo-scopic hysterectomies performed to treat uterine fibroids and determined the impact of the procedures on ovarian blood supply. A total of 124 patients with uterine fibroids admitted and treated in our hospital from December 2014 to December 2015 participated in the study. Two groups of 62 patients each were formed according to different operating plans; one group of patients underwent abdominal (open) panhysterectomy and were set as the control group; with the other group of patients were treated with laparoscopic hysterectomy and were set as the observation group. Ovarian endocrine function tests and blood supply changes were measured in both groups before the operation and one month after it, and the clinical conditions of all the patients were followed up for 24 months after surgery. Our results showed the duration of operation, amount of bleeding and time to recovery after the procedure were significantly lower in the patients in the observation group (P<0.05). Also, compared with preoperative conditions, the levels of PRL, FSH, E2, LH and other ovarian function markers in both groups were significantly lower one month after the operation, but the levels of the patients in the observation group were still significantly higher than those of the patients in the control group (P<0.05). Likewise, the surgeries affected the ovarian blood supply in patients of both groups, as evidenced by the lower levels of PI, RI, Vmin, Vmax and other blood supply indexes observed by Doppler ultrasound a month after the operations. However, the impact of the surgery on the ovarian blood supply was less marked in the patients in the observation group as their levels remained higher than those of patients in the control group (P<0.05). The numbers of patients with completely healed abdominal muscular layers in the observation group were always significantly higher than those of patients in the control group, at every different time point examined (1, 4, 8 and 12 months after surgery) (P<0.01). At the end of the 24 months of the follow-up period, the recurrence rate of fibroids for patients in the observation group was 4.8%. In our hands, the laparoscopic hysterectomy procedure to treat uterine fibroids showed the usual advantages over the abdominal open hysterectomy, like small trauma, short surgical procedure and rapid postoperative recovery, but it also proved to cause a significantly smaller impact on ovarian blood supply and should be considered whenever uterus preservation is a priority. PMID- 29042975 TI - Comparison of DWIBS/T2 image fusion and PET/CT for the diagnosis of cancer in the abdominal cavity. AB - Fusion images of diffusion-weighted whole-body imaging with background body signal suppression and T2-weighted image (DWIBS/T2) demonstrate a strong signal for malignancies, with a high contrast against the surrounding tissues, and enable anatomical analysis. In the present study, DWIBS/T2 was compared with 18F fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) for diagnosing cancer in the abdomen. Patient records, including imaging results of examination conducted between November 2012 and May 2014, were analyzed retrospectively. In total, 10 men (age, 73.6+/-9.6 years) and 8 women (age, 68.9+/-7.1 years) were enrolled into the current study. Of the enrolled patients, 2 were diagnosed with hepatocellular carcinoma, 1 with cholangiocellular carcinoma, 1 with liver metastasis, 2 with pancreatic ductal adenocarcinoma, 1 with renal cell carcinoma and 1 with malignant lymphoma. Benign lesions were also analyzed, including adenomyomatosis of the gallbladder (5 patients), intraductal papillary mucinous neoplasm (4 patients) and right adrenal adenoma (1 case). All the patients with cancer showed positive results on DWIBS/T2 images. However, only 7 out of 8 patients were positive with PET/CT. One patient with right renal cellular carcinoma was positive with DWIBS/T2, but negative with PET/CT. All the patients with benign lesions were negative with DWIBS/T2 and PET/CT. In conclusion, DWIBS/T2 was more sensitive in diagnosing cancer of organs in the abdominal cavity compared with PET/CT. Furthermore, negative results with DWIBS/T2 and PET/CT were useful for the diagnosis of benign lesions, such as adenomyomatosis of the gallbladder and intraductal papillary mucinous neoplasm. PMID- 29042976 TI - Anti-obesity effect of robusta fermented with Leuconostoc mesenteroides in high fat diet-induced obese mice. AB - Robusta beans cultivated with Monascus ruber (RMR) were successively fermented with Leuconostoc mesenteroides (LM) and the antiobesity effects were examined. To produce an obese mouse model to investigate the hypolipidemic effects, ICR mice were fed the same high-fat diet for 6 weeks. Treatment groups were given 10 or 20% RMR-LM. Body weight changes in the 20% RMR-LM group were lower compared with those in the control group. Visceral adipose tissue weight and adipose size were significantly lower in the 20% RMR-LM group compared with those in the control group. Significant improvement in glucose tolerance was observed in the 10 and 20% RMR-LM groups compared with the control group. The 20% RMR-LM group exhibited a significant reduction in serum glucose concentration. Hepatic mRNA levels of sterol regulatory element-binding protein 1, fas cell surface death receptor, and peroxisome proliferator-activated receptor gamma, which are associated with lipid, and fatty acid metabolism, in the 20% RMR-LM group were significantly lower compared with those in the control group. The results of the present study demonstrated that 20% RMR-LM may be used to prevent obesity, and ameliorate diabetes and lipid metabolism imbalances. PMID- 29042977 TI - Contrast-enhanced ultrasound with a novel nanoparticle contrast agent for clinical diagnosis in patients with non-small cell lung cancer. AB - Non-small cell lung cancer (NSCLC) initiates in the non-small cells of the lung and is one of the most common types of human cancer. It is known for its rapid growth, easy migration, invasion and reoccurrence, and has the highest incidence rate of all types of cancer. Early detection of NSCLC is difficult to achieve and this is the primary reason for low survival rates in NSCLC. Contrast-enhanced ultrasound is the most common application for evaluating patients diagnosed with NSCLC. In the present study, a contrast-enhanced ultrasound combined with nanoparticles was performed with the aim of identifying patients with NSCLC at an early stage. The present study evaluated the effectiveness of administering a nanoparticle contrast agent through respiration in combination with enhanced ultrasound at improving image quality compared with traditional ultrasound. This maybe a novel method of detecting early-stage tumors in patients. There are numerous benefits to conducting diagnoses of NSCLC using contrast-enhanced ultrasound. It is a non-invasive imaging modality, induces little pain, has a low cost, an extensive range and produces high-resolution images. This means that it is safer and more beneficial to use in patients with NSCLC than conventional imaging examinations, including X-ray and bronchoscopy. Furthermore, the nanoscale microbubble contrast agent containing liposome-encapsulated epidermal growth factor receptor was inhaled by nebulization, which may lead to an enhanced ultrasound image. The sensitivity of contrast-enhanced ultrasound was investigated in mice with early stage NSCLC. The results indicated that ultrasound administrated with nanoscale microbubble enhanced sensitivity and improved image quality compared with simple ultrasound. Furthermore, enhanced ultrasound resulted in a reliable and sensitive assessment of tumor mass in early stage tumors. Altogether, contrast-enhanced ultrasound facilitated the efficient detection of NSCLC in patients in situ at an early stage. This protocol improved the understanding of the pathophysiology of NSCLC and may be applied in the detection of early-stage tumors in patients suspected of having cancer. PMID- 29042978 TI - Antiplatelet drug ticagrelor delays gastric ulcer healing in rats. AB - Adenosine diphosphate P2Y12 receptor antagonist clopidogrel is not sufficiently safe for the gastric mucosa in patients with high risk of peptic ulcer, since it may impair healing of gastric erosions. However, the safety of the novel P2Y12 receptor antagonist ticagrelor in the gastric mucosa has not been elucidated to date. The present study aimed to examine whether ticagrelor delays gastric ulcer healing and to elucidate the involved mechanisms. Gastric kissing ulcers were produced in rats by luminal application of acetic acid solution, and ticagrelor was administered at dose of 10 or 20 mg/kg/day orally for 7 days. On day 8 after ulcer induction, the ulcer size, mucosal epithelial cell proliferation of the ulcer margin, expression levels of epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF), and signal transduction pathways for cell proliferation and angiogenesis were measured and compared between the ticagrelor treated and untreated model groups. The results revealed that the ulcer size was significantly greater in the ticagrelor-treated group compared with the model group, while the mucosal epithelial cell proliferation of the ulcer margin was significantly decreased in the ticagrelor-treated group. In addition, ticagrelor significantly decreased the ulcer-stimulated expression levels of EGF, VEGF, phosphorylated extracellular signal-regulated kinase (ERK), phosphorylated P38 mitogen-activated protein kinase and nuclear factor-kappaB P65 at the ulcer margin (P<0.05). These findings suggested that ticagrelor delayed gastric ulcer healing. Furthermore, the possible mechanisms underlying the effect of ticagrelor were associated with its functions of attenuating the expression levels of VEGF and EGF, as well as suppressing the phosphorylation activation of ERK1/2, P38 and nuclear factor-kappaB P65. Finally, the gastric epithelial cell proliferation and angiogenesis were also inhibited. PMID- 29042979 TI - Mechanism of apoptosis involved in gastric mucosal lesions in Tibetans with high altitude polycythemia. AB - The Tibetan high plateau is a low-oxygen environment, which may cause the pathogenesis of high-altitude polycythemia (HAPC). Gastric mucosal lesions (GML) are a common complication of HAPC. The molecular mechanisms involved in HAPC induced GML have remained to be fully elucidated and were therefore investigated in the present study. Gastric tissues of patients with heavy, HAPC-induced GML and healthy controls were assessed by ultrastructural and histopathological analysis. In addition, terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling and reverse transcription quantitative polymerase chain reaction (RT-qPCR) analysis were used to detect cell apoptosis in the gastric mucosa tissues. Moreover, the expression of genes associated with the phosphoinositide-3 kinase (PI3K) pathway was assessed by RT qPCR to investigate the mechanism of cell apoptosis in HAPC-induced GML. The results revealed a significant increase in the number of red blood cells, gastric vessels and the diameter of gastric mucosal vessels in HAPC-induced GML patients compared with those in healthy controls. In addition, more red blood cells were distributed in gastric tissue not only at the vascular level but also in the tissue space. The number of vacuoles was increased in the gastric mucosal cells. Furthermore, a significant increase in apoptosis of the gastric mucosal cells was identified. The expression of phosphatase and tensin homolog was significantly higher in gastric mucosa from patients with HAPC-induced GML compared with that in the healthy controls. All of the pathologic changes suggested that significant cell apoptosis occurred in the HAPC-induced GML tissues, which may be associated with the PI3K pathway. These findings may provide novel insight for the treatment of gastric lesions caused by HAPC in the future. PMID- 29042980 TI - Diagnosis and treatment of pulmonary mucormycosis: A case report. AB - Pulmonary mucormycosis, a relatively rare pulmonary fungal disease, is difficult to diagnose and lacks effective treatment. The present study reports the case of a 64-year-old patient who was treated successfully for pulmonary mucormycosis in Xuan Wu Hospital. The patient presented with low-grade fever and a productive cough that persisted for 1 month with no evident cause, and also suffered from diabetes mellitus. Prior antibiotic treatment with levofloxacin had been ineffective. Culture of mucus obtained by bronchoscopy resulted in a diagnosis of pulmonary mucormycosis. The patient received a cumulative dose of 1,355 mg amphotericin B over 2 months and presented a full recovery. PMID- 29042981 TI - Sophocarpine against enterovirus 71 in vitro. AB - Sophocarpine (SCA) is a bioactive alkaloid present in Sophoraflavescens Ait. The present study demonstrated that SCA inhibited enterovirus 71 (EV71) infection in Vero cells. The results indicated that the 50% cytotoxicity concentration of SCA for Vero cells was 1,346 ug/ml, and the 50% inhibition concentration of SCA against EV71 was 350 ug/ml. SCA produced a marked inhibitory effect against EV71 when the Vero cells were treated with SCA prior to infection with the virus. Additionally, SCA was effective against EV71 when the Vero cells were infected with EV71 (100xTCID50) that had been treated with SCA for 2 h, and was effective when the Vero cells were infected with EV71 (100xTCID50) at 37 degrees C under 5% CO2 for 2 h prior to treatment with SCA for 2 h. SCA was demonstrated to inhibit the attachment and penetration of EV71 and was more effective at inhibiting attachment. The assay additionally verified that SCA suppressed the replication of viral genomic RNA and indicated that SCA may inhibit EV71 infection in vitro. PMID- 29042983 TI - MicroRNA-17 downregulates expression of the PTEN gene to promote the occurrence and development of adenomyosis. AB - The aim of the current study was to evaluate the expression of microRNA (miR)-17 in the endometrial tissues of patients with adenomyosis (AM) and determine its biological function in the occurrence and development of the disease. A total of 45 fresh endometrial tissues of AM patients and 32 normal endometrial tissues were collected from healthy controls. The expression of miR-17 was evaluated using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The miR-17-targeting gene phosphatase and tensin homolog (PTEN) was predicted using bioinformatics and its expression was evaluated with RT-qPCR and western blot analysis. Endometrial cells were isolated from patients with AM and healthy controls. They were cultured in vitro and transfected with antagomiR-17 to downregulate miR-17 expression, subsequently cell viability and apoptosis were measured using MTT and flow cytometry. The expression of PTEN and cell cycle- and apoptosis-related proteins were evaluated using western blot analysis. Endometrial cells that stably overexpressed PTEN were screened in vitro by co culture with G418. A dual-luciferase reporter assay was conducted to verify whether miR-17 was directly bound to PTEN mRNA. The results demonstrated that expression of miR-17 was significantly increased in the endometrial tissues of patients with AM compared with control patients (P<0.05). PTEN mRNA and protein expression were significantly lower in the AM group compared with the control group (P<0.05). When the expression of miR-17 in the cells was downregulated, the expression of PTEN was significantly increased (P<0.05). In addition, expression of Bcl-2 protein was significantly decreased and that of Bax protein significantly increased compared with the negative control (both P<0.05). The expression of cyclins E1 and D1 were also significantly downregulated (P<0.05). When PTEN was overexpressed or miR-17 was downregulated, the viability of endometrial cells significantly decreased and cell apoptosis significantly increased (all P<0.05). A dual-luciferase reporter assay indicated that miR-17 could directly bind to the PTEN mRNA 3'-untranslated region to regulate its expression. Thus the current study indicates that expression of miR-17 was increased in the endometrial tissues of patients with AM and may influence cell apoptosis and cyclin expression through the targeted regulation of PTEN. These results suggest that miR-17 promotes the occurrence and development of AM. PMID- 29042982 TI - Expression of glutathione S-transferase A1, a phase II drug-metabolizing enzyme in acute hepatic injury on mice. AB - In the present study, three models of acute liver injury in mice were induced via the administration of CCl4 (35 mg/kg, 24 h), acetyl-para-aminophenol (APAP; 200 mg/kg, 12 h) and ethanol (14 ml/kg, 8 h) to study the effect of glutathione S transferase A1 (GSTA1) on acute liver injury. The serum levels of alanine transaminase, aspartate transaminase and liver homogenate indicators (superoxide dismutase, glutathione and glutathione peroxidase) were significantly lower in model groups compared with the control group (P<0.01), whereas the liver homogenate indicator malondialdehyde was significantly increased (P<0.01). The expression of GSTA1 in liver was significantly decreased in the model groups compared with the control group (P<0.01). GSTA1 protein content was 3.8, 1.3 and 2.6 times lower in the CCl4, APAP and ethanol model groups, respectively. Furthermore, GSTA1 mRNA expression levels decreased by 4.9, 2.1 and 3.7 times in the CCl4, APAP and ethanol model groups, respectively. Among the three models, the injury induced by CCl4 was the most marked, followed by ethanol and finally APAP. These results suggest that GSTA1 may be released by the liver and serve as an antioxidant in the prevention of liver damage. PMID- 29042984 TI - Bmi1 and BRG1 drive myocardial repair by regulating cardiac stem cell function in acute rheumatic heart disease. AB - Rheumatic heart disease (RHD) occurs due to the accumulation of complications associated with rheumatic fever, and it results in high morbidity and mortality. The majority of cases of RHD are diagnosed in the chronic stages, when treatment options are limited. A small reservoir of cardiac stem cells is responsible for maintaining cardiac homeostasis and repairing tissue damage. Understanding the role of cardiac stem cells and the various proteins responsible for their functions in different pathological stages of RHD is an important area of investigation. Polycomb complex protein BMI-1 (Bmi1) and transcription activator BRG1 (BRG1) are associated with the maintenance of stemness in various types of stem cells. The present study investigated the role served by Bmi1 and BRG1 in cardiac stem cells during various pathological stages of RHD through immunohistochemistry and western blotting. A rat model of RHD was established via immunization with the Group A Streptococcus M5 protein. The rat was demonstrated to develop acute RHD 2 months after the final immunization, characterized by cardiac inflammation and tissue damage. Chronic RHD was identified 4 months after the final immunization, revealed by cardiac tissue compression and shrinkage. Expression of the cardiac stem cell marker mast/stem cell growth factor receptor kit was identified to be elevated during acute RHD, but downregulated in the chronic stages of RHD. A similar pattern of expression was revealed for Bmi1 and BRG1, indicating that they serve a role in regulating cardiac stem cell proliferation during acute RHD. These results suggest that cardiac stem cells serve a supportive role in the acute, but not chronic, stages of RHD via expression of Bmi1 and BRG1. PMID- 29042985 TI - Long noncoding RNA eosinophil granule ontogeny transcript inhibits cell proliferation and migration and promotes cell apoptosis in human glioma. AB - Glioma is the most common primary brain tumor and represents one of the most aggressive and lethal types of human cancer. Recent advances have implicated long noncoding RNAs (lncRNAs) as crucial mediators of cancer development and progression. The present study aimed to investigate the role of a newly discovered lncRNA, termed eosinophil granule ontogeny transcript (EGOT), in the aggressive abilities of cells in human glioma. It was initially found that the relative transcription level of EGOT in glioma cancerous tissues was significantly lower than that in adjacent non-cancerous tissues. EGOT was differentially expressed in a series of glioma cell lines, with its lowest level in high aggressive U251 and U87 cells. When EGOT was overexpressed by an expression plasmid, cell viability was significantly inhibited in U251 and U87 cells. Furthermore, with EGOT overexpression, the cell cycle was arrested at G0/G1 phase and consequently, cell apoptosis was significantly promoted along with the activities of caspase-3 and caspase-9. The migration abilities of EGOT overexpressed cells were inhibited by 71.4% in U251 cells and by 69.5% in U87 cells. These data suggest that overexpression of EGOT inhibits cell proliferation and migration, and promotes cell apoptosis in glioma. Therefore, EGOT has potent anticancer activity and may function as a tumor suppressor in human glioma. PMID- 29042986 TI - Sevoflurane exposure in postnatal rats induced long-term cognitive impairment through upregulating caspase-3/cleaved-poly (ADP-ribose) polymerase pathway. AB - The association of anesthetic exposure in infants or young children with the long term impairment of neurologic functions has been reported previously; however, the underlying mechanisms remain largely unknown. In order to identify dysregulated gene expression underlying long-term cognitive impairment caused by sevoflurane exposure at the postnatal stage, the present study initially performed behavioral tests on adult Wistar rats, which received 3% sevoflurane at postnatal day 7 (P7) for different time course. Subsequently, transcriptome profiling of hippocampal tissues from experimental and control rats was performed. Significant impairment of the working memory was observed in adult rats with sevoflurane exposure for 4-6 h, when compared with the control rats. The results indicated that a total of 264 genes were aberrantly expressed (51 downregulated and 213 upregulated; fold change >2.0; P<0.05; false discovery rate <0.05) in the hippocampus of experimental adult rats compared with those from control rats. Particularly, the expression of caspase-3 gene (CASP3), encoding caspase-3 protein, presented the most significant upregulation, which was further validated by quantitative polymerase chain reaction and immunohistochemical analysis. Further analysis revealed that CASP3 expression level was negatively correlated with the rats' spatial working memory performance, as indicated by the Y-maze test. The level of cleaved-poly (ADP-ribose) polymerase (PARP), a substrate of caspase-3, was also increased in the hippocampus of experimental adult rats. Thus, the present study revealed that upregulation of caspase 3/cleaved-PARP may be involved in long-term cognitive impairment caused by sevoflurane exposure in infants, which may be useful for the clinical prevention of cognitive impairment. PMID- 29042987 TI - Upregulation of Yes-associated protein and transcriptional co-activator with PDZ binding motif influences the behavior of LOVO human colon adenocarcinoma cells. AB - The present study aimed to investigate the role of Yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ) in the LOVO human colon adenocarcinoma cell line and explore the underlying mechanisms. First, the expression levels of YAP and TAZ were detected in LOVO cells using reverse transcription quantitative PCR, and the results suggested that YAP and TAZ were faintly expressed in LOVO cells. To investigate the exact role of YAP and TAZ in LOVO cells, stable YAP- and/or TAZ-overexpressing LOVO cell lines were established using YAP and/or TAZ expression plasmids. An MTT assay and flow cytometry were used to assess cell proliferation and apoptosis, respectively. The results indicated that compared with the control, YAP or TAZ overexpression significantly increased the proliferation ability of LOVO cells, while apoptosis was significantly decreased. Furthermore, the expression of the tumor-associated proteins connective tissue growth factor and cysteine-rich angiogenic inducer 61, which have critical roles in facilitating cancer cell proliferation, migration and invasion, were found to be upregulated following upregulation of YAP and TAZ. In addition, the expression of cell apoptosis-associated protein B-cell lymphoma 2 (Bcl-2) was significantly increased, while Bcl-2-associated X protein and caspase-3 were inhibited by YAP or TAZ overexpression. All of these effects were amplified when YAP and TAZ were co-overexpressed. In conclusion, YAP and TAZ function as tumor promoters in human colon carcinoma, and upregulation of YAP and TAZ influences the behavior of LOVO colon adenocarcinoma cells via regulating tumor-associated gene expression. PMID- 29042988 TI - Toll-like receptor 2 and dectin-1 function as promising biomarker for Aspergillus fumigatus infection. AB - In recent years, along with the wide application of organ transplantation and immunosuppressive agents, as well as the abuse of broad spectrum antibiotics, the incidence of invasive fungal infections has been increasing gradually. The present study aimed to identify novel biomarkers in cells infected with Aspergillus fumigatus. Human umbilical vein endothelial cells (HUVECs) were infected with Aspergillus fumigatus and then harvested at different time-points (0, 1, 2, 4 and 6 h). The expression Toll-like receptor 2 (TLR2) and dectin-1 expression were examined using flow cytometry and western blotting, and fluorescence-based microscopy was used to evaluate their distribution. The results indicated that TLR2 and dectin-1 protein levels were localized on the surface of HUVECs, and that dectin-1 was distributed on HUVEC membranes as observed under confocal microscope. Immunofluorescence assay result revealed that the optical intensity of dectin-1 in the Aspergillus fumigatus-infected group was significantly increased at 0, 1 and 2 h compared with the control group (P<0.05). However, the optical intensity of TLR2 in the Aspergillus fumigatus-infected group was markedly decreased between 0 and 6 h, as compared with the control group (P<0.05). Western blot analysis indicated that dectin-1 expression was significantly increased and TLR2 expression was significantly decreased at 0, 1 and 2 h post infection in the Aspergillus fumigatus-infected group compared with the control group. Furthermore, the expression of TLR2 was also negatively correlated with the concentration of Aspergillus fumigatus. In conclusion, upon infection of cells with Aspergillus fumigatus, TLR2 and dectin-1 expression levels were significantly altered. Therefore, TLR2 and dectin-1 levels may function as promising biomarkers for the treatment or diagnosis of Aspergillus fumigatus infection. PMID- 29042989 TI - MicroRNA-22 may promote apoptosis and inhibit the proliferation of hypertrophic scar fibroblasts by regulating the mitogen-activated protein kinase kinase/extracellular signal-regulated kinase/p21 pathway. AB - Hypertrophic scarring (HS) is a common skin disorder that occurs during the wound healing process, and the pathogenesis of HS remains unclear. Increasing evidence indicated that specific microRNAs (miRs) may be involved in the onset and progression of HS. In the present study, the association between miR-22 and HS was investigated. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to examine the expression of miR-22 in 30 HS and matched normal skin tissues. In addition, human hypertrophic scar fibroblasts (HSFBs) were cultured and transfected with miR-22 mimics, and MTT and Annexin V apoptosis assays were performed to investigate the role of miR-22 in the proliferation and apoptosis of the human HSFBs. Next, RT-qPCR and western blot assays were performed to compare the expression levels of mitogen-activated protein kinase kinase (MEK), extracellular signal-regulated kinase (ERK) and p21 in untransfected and miR-22 mimic-transfected skin fibroblasts. The results identified that miR-22 was significantly downregulated in HS tissues as compared with the normal skin. Furthermore, transfection with miR-22 mimics in human HSFBs led to inhibited cell proliferation, increased apoptosis, as well as to decreased MEK expression and ERK1/2 phosphorylation, and increased expression of p21. In conclusion, the present study was the first to prove that aberrant expression of miR-22 may serve an important role in the pathogenesis of HS by regulating the MEK/ERK/p21 pathway, thus suggesting that miR-22 has the potential to become a therapeutic target for the treatment of HS. PMID- 29042990 TI - Changes of Treg and Th17 cells as well as cytokines in children with acute bronchitis. AB - The present study aimed to investigate changes of T-regulatory (Treg) and T helper (Th)17 cells as well as cytokines in peripheral blood of children with acute bronchitis, and to explore the roles of these cells in the pathogenesis of acute bronchitis. A total of 126 children who had presented at Renji Hospital (Shanghai, China) with acute bronchitis were selected as the observation group and 30 healthy children were selected as the control group. Th17/Tregs in the peripheral blood of the children of the observation group and the control group was detected by flow cytometry. The levels of cytokines interleukin (IL)-17, IL 22, IL-10 and transforming growth factor (TGF)-beta in peripheral blood serum were detected by ELISA. Compared with those in the control group, Treg cells, the Treg/Th17 ratio as well as serum IL-10 and TGF-beta levels were significantly decreased in the observation group (P<0.05), while Th17 cells as well as serum levels of IL-17 and IL-22 were significantly increased (P<0.05). In conclusion, Treg/Th17 and the expression of associated cytokines lost their balance in children with acute bronchitis, suggesting that Treg and Th17 cells as well as their cytokines may be involved in the pathogenesis of acute bronchitis. It may be of certain guiding significance to detect Treg/Th17 and levels of serum cytokines in peripheral blood for clinical treatment. PMID- 29042991 TI - Nuclear factor-kappaB signaling negatively regulates high glucose-induced vascular endothelial cell damage downstream of the extracellular signal-regulated kinase/c-Jun N-terminal kinase pathway. AB - Diabetes mellitus (DM)-induced high blood sugar severely damages vascular endothelial cells (VECs), which are in direct contact with the blood. Diabetic complications cause difficulties in skin wound healing and VECs are important for this process. Previous studies demonstrated that high blood sugar delayed the repair of wounded VECs, but the underlying mechanism has remained elusive. To explore the effects of diabetic conditions on VEC damage, cells were incubated in a medium with high glucose and then subjected to RNA-sequencing based transcriptome analysis. The results revealed that numerous biological processes were altered by HG stress, including extracellular matrix-receptor interaction, NOD-like receptor signaling and the nuclear factor (NF)-kappaB pathway. HG treatment increased the levels of phosphorylated inhibitor of NF-kappaB (IkappaB alpha), the key NF-kappaB signaling regulator as well as the transcripts of plasminogen activator inhibitor-1 and interleukin-8, two inflammatory response markers. Treatment with extracellular signal-regulated kinase (ERK)- and c-Jun N terminal kinase (JNK)-specific inhibitors U0126 and sp600125, respectively, led to the activation of IkappaB-alpha; however, the inhibitor of IkappaBalpha phosphorylation Bay11-7082 did not affect ERK and JNK activity, suggesting that ERK/JNK signaling occurs upstream of NF-kappaB in VECs. The present study provided useful information regarding the effects of diabetes on VECs, which may provide approaches for therapies of diabetes-associated complications in the future. PMID- 29042992 TI - Timosaponin B-III exhibits antidepressive activity in a mouse model of postpartum depression by the regulation of inflammatory cytokines, BNDF signaling and synaptic plasticity. AB - The aim of this study was to investigate the antidepressive effects of timosaponin B-III (TB-III) and the underlying mechanism. A postpartum depression (PPD) mouse model was established by the administration of dexamethasone sodium phosphate during pregnancy. Mice with PPD were assigned to the following groups: Model, fluoxetine and high, medium and low doses of TB-III. Post-parturient mice without PPD served as a normal control group. To examine the effect of TB-III, mice were treated with TB-III, then forced swimming tests (FSTs) and tail suspension tests (TSTs) were performed to evaluate depression. Serum and hippocampal cytokines, namely tumor necrosis factor (TNF)-alpha, interleukin (IL) 1beta, IL-6 and IL-10, were quantified using ELISAs and protein levels of hippocampal brain-derived neurotrophic factor (BDNF), glucagon synthase kinase (GSK)-3beta, glutamate receptor subunit 1 (GluR1), postsynaptic density protein 95 (PSD95) and synapsin I were quantified using western blot analysis. Compared with those in the control group, immobility time in the FST and TST, serum and hippocampal TNF-alpha, IL-1beta and IL-6 levels and hippocampal IL-10 levels were increased significantly in the model group (P<0.01). Serum IL-10 levels and hippocampal levels of BDNF, GSK-3beta, GluR1, PSD95 and synapsin I decreased significantly in the model group compared with the control group (P<0.01). Fluoxetine or TB-III (10, 20 or 40 mg/kg) treatment significantly decreased immobility times in the FST and TST (P<0.01) and significantly reversed the aforementioned alterations in cytokine and protein levels (P<0.01). Thus, TB-III exhibited a protective effect against depression in PPD and such effects may have been mediated via the regulation of inflammatory cytokines, the BNDF signaling pathway and synaptic plasticity-related proteins. PMID- 29042993 TI - Sitagliptin ameliorates high glucose-induced cell proliferation and expression of the extracellular matrix in glomerular mesangial cells. AB - Diabetic nephropathy (DN) is one of the most important causes that leads to end stage renal disease and the efficacy of strategies currently available for the prevention of DN remains unsatisfactory. Sitagliptin (SIT), which is a dipeptidyl peptidase-4 inhibitor, exhibited a modest beneficial effect on glycated hemoglobin levels and is capable of ameliorating renal ischemia reperfusion injury. By determining the expression of transforming growth factor-beta1 (TGF beta1), connective tissue growth factor (CTGF), collagen type IV (ColIV) and fibronectin (FN) levels in high glucose-cultured glomerular mesangial cells (MCs), the present study aimed to assess the anti-proliferative and anti-fibrotic effects of SIT on the therapeutic potential for the prevention of DN and its mechanism. Specifically, cell proliferation was determined via cell counting kit 8 assay, and the expression levels of TGF-beta1 and CTGF mRNA were detected by reverse transcription polymerase chain reaction analysis. Furthermore, the secretion of TGF-beta1, CTGF, ColIV and FN proteins was measured via enzyme linked immunosorbent assays. The results demonstrated that high glucose induced the proliferation of MCs and enhanced the expression of TGF-beta1, CTGF, ColIV and FN. Furthermore, treatment with SIT inhibited cell proliferation and the expression of TGF-beta1, CTGF, ColIV and FN induced by high glucose. In conclusion, SIT inhibits cell proliferation and the expression of the major extracellular matrix proteins induced by high glucose, indicating its value for treating or relieving DN. PMID- 29042994 TI - Immunological mechanism of low-dose priming radiation resistance in walker-256 tumor model mice. AB - The aim of the present study was to investigate whether low-dose priming radiation induces antitumor immunity that can be augmented by the modulation of natural killer (NK) cell and cytokine activity using a mouse tumor model. Walker 256 cells were injected into the right flank of male BALB/c mice. At 7 days after inoculation, mice were divided into three groups, including group 1,2,3. In group 1 the mice were without radiation, in group 2 the mice were received 2 Gy radiation only, and in group 3 the mice were radiated with a priming dose of 75 mGy followed by 2 Gy radiation after 24 h. On day 21 following the radiation, the tumors were removed and the tumor index (tumor weight as a percentage of body weight) was calculated. At 1, 7, 14 and 21 days following the 2 Gy radiation, mouse splenocytes were isolated to analyze the NK activity and measure the production of the cytokines interleukin-1beta, interferon-gamma and tumor necrosis factor-alpha by ELISA. Apoptosis was also measured by flow cytometry. The results demonstrated that priming radiation significantly delayed the tumor growth and prolonged the median survival time to 38 days compared with the 31-day survival in the 2 Gy radiation group. The percentage of apoptotic cells was significantly higher in the mice that received 75 mGy + 2 Gy radiation compared with that in the mice that received 2 Gy alone; by contrast, mice that were not irradiated exhibited a relatively low level of apoptosis. The primed mice had a higher level of NK activity as compared with the mice exposed to 2 Gy radiation only or mice that were not irradiated. Furthermore, cytokine expression remained at a higher level in mice receiving priming dose of radiation compared that in the mice receiving only 2 Gy radiation. In conclusion, the results indicated that low-dose priming X-ray radiation may enhance the NK activity and the levels of cytokines, and that the immune response serves an important role in anticancer therapy, including radiotherapy. PMID- 29042995 TI - Overexpression of dominant-negative Ikaros 6 isoform is associated with resistance to TKIs in patients with Philadelphia chromosome positive acute lymphoblastic leukemia. AB - The clinical significance of the dominant-negative Ikaros 6 (DN-IK6) in the treatment of patients with Philadelphia-positive acute lymphoblastic leukemia (Ph+-ALL) with tyrosine kinase inhibitors (TKIs) remains elusive. In the present study, it was demonstrated that DN-IK6 was overexpressed in B-cell (B)-ALL cases compared with T cell-ALL cases at the mRNA and protein levels. Furthermore, nucleotide sequencing revealed that DN-IK6 was due to the deletion of IKAROS family zinc finger 1 exons 4-7. The outcome of patients with Ph+-B-ALL with DN IK6, and treated with TKIs and hyper cyclophosphamide/vincristine/doxorubicin/dexamethasone regimen were restrospectively evaluated in a 2 year follow-up. The results demonstrated that those with the DN isoform exhibited significantly lower incidences of remission, shorter median cumulative incidence of relapse times (P<0.05) and shorter median overall survival times (P<0.05) compared with those without the DN isoform. In conclusion, the results of the present study demonstrated that DN-IK6 is overexpressed in the majority of patients with Ph+-ALL, and is significantly associated with resistance to TKI therapy. PMID- 29042996 TI - IL-32gamma promotes integrin alphavbeta6 expression through the activation of NF kappaB in HSCs. AB - Hepatic stellate cell (HSC) activation is important in the pathogenesis of liver fibrosis. However, the molecular mechanism of HSC activation is not completely understood. In the present study, it was demonstrated that interleukin-32gamma (IL-32gamma) is capable of enhancing intefgrin alphavbeta6 expression by inducing integrin alphavbeta6 promoter activity in a dose-dependent manner in HSCs. Furthermore, it was determined that nuclear factor kappaB (NF-kappaB) activation is required for IL-32gamma-induced integrin alphavbeta6 expression. Increased integrin alphavbeta6 expression is then able to activate HSCs. These results indicate that NF-kappaB activation is required for IL-32gamma to induce integrin alphavbeta6 expression and consequently promote HSC activation. Therefore, IL 32gamma activates HSCs and therefore may be associated with hepatic fibrogenesis. These results may enable the development of novel effective strategies to treat hepatic fibrosis. PMID- 29042997 TI - CD19+CD24hiCD38hi regulatory B cells are associated with insulin resistance in type I Hashimoto's thyroiditis in Chinese females. AB - Hashimoto's thyroiditis (HT) is typically associated with insulin resistance. The aim of the present study was to investigate the role of regulatory B cells (Bregs) in insulin resistance in patients with HT. A total of 52 female patients with type I HT and 35 matched healthy volunteers were enrolled. Demographic and laboratorial data were collected. A 75 g oral glucose tolerance test was performed on each subject. Flow cytometry was performed to evaluate the levels of CD19+CD24hiCD38hi Bregs in peripheral blood. Patients with HT exhibited significantly higher postprandial insulin levels (P<0.01), but normal glucose levels. The level of CD19+CD24hiCD38hi Bregs in patients with HT decreased significantly (P=0.0002) compared with the controls. Pearson's linear correlation model revealed a significant, negative association between anti-thyroid peroxidase antibodies (TPOAb) and homeostasis model assessment of beta cell (r= 0.313, P=0.014). The same correlation model revealed a significant, negative association between TPOAb and the disposition index (DI; r=-0.305, P=0.017), and between anti-thyroglobulin antibodies and DI (r=-0.321, P=0.013). Patients with a decreased ratio of CD19+CD24hiCD38hi Bregs to CD19+ lymphocytes exhibited higher levels of total cholesterol and low-density lipoprotein cholesterol. A decrease in the ratio of CD19+CD24hiCD38hi Bregs to lymphocytes was a significant independent risk factor for hyperinsulinemia (odds ratio=1.372, P=0.035). A decrease in peripheral blood CD19+CD24hiCD38hi Bregs is associated with insulin resistance in HT patients, and was an independent risk factor for postprandial hyperinsulinemia. The present study provided a novel insight into the development of effective therapeutic strategies targeting immune mechanisms associated with HT. PMID- 29042998 TI - MicroRNA-206 inhibits the viability and migration of medulloblastoma cells by targeting LIM and SH3 protein 1. AB - MicroRNA (miR)-206 has been found to be deregulated in various types of human cancer, including medulloblastoma. However, the regulatory mechanism of miR-206 in medulloblastoma growth and metastasis remains largely unclear. In the present study, reverse transcription-quantitative polymerase chain reaction data indicated that miR-206 was significantly downregulated in medulloblastoma tissues compared with adjacent non-tumor tissues (P<0.01). Furthermore, low expression of miR-206 was significantly associated with seeding at presentation and anaplastic histology (P<0.01), but not with sex, age, or residual tumors. Overexpression of miR-206 significantly reduced the viability and migration of medulloblastoma D341 cells (P<0.01). LIM and SH3 protein 1 (LASP1) was further identified as a novel target of miR-206 in D341 cells. mRNA levels of LASP1 were significantly higher in medulloblastoma tissues compared to adjacent non-tumor tissues (P<0.01), with an inverse correlation to the miR-206 levels in medulloblastoma tissues. In addition, protein expression levels of LASP1 ere negatively regulated by miR-206 in D341 cells. Further investigation showed that overexpression of LASP1 significantly eliminated the inhibitory effects of miR-206 on the migration and invasion of D341 cells (P<0.01). In conclusion, our study demonstrates that miR 206 has a suppressive role in medulloblastoma cell viability and invasion, partly at least, via the targeting of LASP1. Our study highlights the importance of the miR-206/LASP1 in medulloblastoma. PMID- 29042999 TI - Pien Tze Huang inhibits the proliferation of colorectal cancer cells by increasing the expression of miR-34c-5p. AB - MicroRNAs (miRNAs) are small, short endogenous non-coding RNA that act as oncogenes or tumor suppressors, and serve an important role in various human malignant cancers, including colorectal cancer (CRC). Evidence has indicated that miRNAs regulate the expression of various genes associated with human cancer, in particular the miR-34 family. A well-known traditional Chinese formula, Pien Tze Huang (PZH), has a significant clinical effect on CRC. Previous studies have demonstrated that PZH inhibits CRC growth in vitro and in vivo via multiple mechanisms, including the induction of apoptosis, inhibition of cell proliferation and tumor angiogenesis. To further elucidate the molecular mechanisms underlying the antitumor activity of PZH, in the present study its effects on cell proliferation and miRNA expression in human colon carcinoma (HCT) 8 cell lines was examined. It was observed that treatment with PZH inhibited cell viability and upregulated the expression of miR-34c-5p in HCT-8 cells. In addition, transfection with an miR-34c-5p mimic and treatment with PZH inhibited cell survival and arrested the cell cycle between the G0/G1 and S phase in HCT-8 cells. Furthermore, PZH treatment and transfection with miR-34c-5p downregulated the expression of cyclin-dependent kinase 4 and cMyc (a promoter of cell proliferation), and increased the expression of p53, which is a promoter of apoptosis. These results suggest that PZH may suppress proliferation in CRC cells by upregulating the expression of miR-34c-5p, which provides a novel perspective for understanding the mode of action of PZH. PMID- 29043000 TI - Effect of entecavir in the treatment of patients with hepatitis B virus-related compensated and decompensated cirrhosis. AB - Chronic hepatitis B virus (CHB) infection is a burden on global healthcare and is associated with a higher risk of serious sequelae, including cirrhosis and hepatocellular carcinoma. The clinical application of entecavir as a treatment for CHB has produced positive outcomes, and so is an attractive form of pharmacological therapy. However, little data exists comparing the safety and efficacy of entecavir for the treatment of hepatitis B virus (HBV)-related compensated, and decompensated cirrhosis, respectively. The aim of the present study was to evaluate entecavir therapy as a treatment for patients with HBV related compensated and decompensated cirrhosis. A retrospective analysis of 46 compensated patients (compensated group) and 51 decompensated cirrhotic patients (decompensated group) treated with entecavir was conducted. Baseline demographics, clinical outcomes, and adverse events during the treatment were compared. Treatment with entecavir for 96 weeks resulted in significant improvements in serum levels of HBV DNA (P=0.002), albumin (P=0.014), cholinesterase (CHE; P=0.001), HBV DNA negativity rate (P=0.004), Child-Turcotte Pugh score (P=0.030), alanine aminotransferase normalized rate (P=0.039), and the degree of esophageal varices liver stiffness (P=0.002) in the two groups. However, statistical analysis revealed that the improvements were significantly higher in the compensated group compared with the decompensated group (P<0.05). The complement component (C)3 and C4 levels were also significantly increased in the compensated group compared with the decompensated group at weeks 24, 48 and 96 (P<0.05). In addition, the incidences of hepatocellular carcinoma, upper digestive tract hemorrhage and ascites were significantly higher in the decompensated group compared with the compensated group (P<0.05). In conclusion, treatment with 96-week entecavir therapy produced similar clinical outcomes in compensated and decompensated cirrhotic patients via inhibiting HBV-DNA viral load and recovering complement C3 and C4; however, entecavir exerts a better effect on patients with compensated cirrhosis, and so this therapy may improve the prognosis of such patients. PMID- 29043001 TI - Effect of Pingchuan Guben decoction on patients with chronic obstructive pulmonary disease: Results from a randomized comparative effectiveness research trial. AB - Chronic obstructive pulmonary disease (COPD) is known to be a systemic low-grade ongoing inflammation exerting major health and economic burden worldwide. Complementary and alternative medicines, such as Traditional Chinese Medicine, are widely used for the treatment of patients with COPD. The present study was designed to investigate the efficacy of Pingchuan Guben decoction on patients with COPD through a double-blinded, open-labeled, randomized controlled trial. A total of 86 patients were randomly assigned to two groups, with 43 patients in the intervention group and 43 cases in the control group. The patients in the control group were treated with conventional western medicine, and the intervention group received a combination of conventional western medicine and Pingchuan Guben decoction. After 12 weeks of treatment, the mean 6-minute walking distance, forced expiratory volume in 1 sec (FEV1), forced vital capacity (FVC) and FEV1/FVC in the intervention group were significantly higher than those of the control group (P<0.05). The levels of inflammation factors and protease molecules were significantly ameliorated in the intervention group compared with the control group (P<0.05). The levels of Kelch-like ECH-associated protein 1 (Keap1), nuclear factor-E2-related factor-2 (Nrf2), superoxide anions, malondialdehyde, glutathione S-transferase and glutathione peroxidase were significantly more improved in the intervention group compared with those in the control group over the 12-week study period (P<0.05). Therefore, combinations of western medicine with Pingchuan Guben decoction may exert therapeutic effects on patients with COPD via modulations of inflammation factors and protease molecules, as well as the activation of the Keap1/Nrf2 signaling pathway. PMID- 29043002 TI - Humanin analogue, S14G-humanin, has neuroprotective effects against oxygen glucose deprivation/reoxygenation by reactivating Jak2/Stat3 signaling through the PI3K/AKT pathway. AB - Stroke, characterized by a disruption of blood supply to the brain, is a major cause of morbidity and mortality worldwide. Although humanin, a 24-amino acid polypeptide, has been identified to have multiple neuroprotective functions, the level of humanin in plasma has been demonstrated to decrease with age, which likely limits the effects against stroke injury. A potent humanin analogue, S14G humanin (HNG), generated by replacement of Ser14 with glycine, has been demonstrated to have 1,000-fold stronger biological activity than humanin. The present study established an in vitro oxygen glucose deprivation/reoxygenation (OGD/R) model using SH-SY5Y neuroblastoma cells to mimic the in vivo ischemia/reperfusion injury in stroke. Adding HNG (0-10 ug/l) to SH-SY5Y cells to different extents blocked OGD/R-induced reduction of cell viability and antioxidative capacity, as well as decreased the elevated apoptosis rate induced by OGD/R, with the most evident effects at 1 ug/l HNG. Janus kinase 2 (Jak2)/signal transducer and activator of transcription 3 (Stat3) signaling was attenuated in OGD/R processes, yet reactivated with HNG treatment. FLLL32 (5 uM), a specific inhibitor of the signal, abolished effects of HNG on anti-apoptosis and antioxidation in OGD/R processes. Co-treatment with HNG and FLLL32 failed to interrupt upregulation of cytochrome c, B-cell lymphoma 2-associated X protein and cleaved caspase-3 provoked by OGD/R. Similar to FLLL32, Jak2/Stat3 signaling activated by HNG was also repressed by inhibitor of phosphoinositide 3-kinase (PI3K; 10 uM LY294002) or protein kinase B (AKT; 5 uM MK-2206 2HCl). These data collectively indicated that HNG has neuroprotective effects against OGD/R by reactivating Jak2/Stat3 signaling through the PI3K/AKT pathway, suggesting that HNG may be a promising agent in the management of stroke. PMID- 29043003 TI - Tiaogeng Yijing decoction improves the pregnancy outcomes of patients with poor ovarian response undergoing in vitro fertilization-embryo transfer. AB - The present study aimed to explore the therapeutic effects of the Tiaogeng Yijing decoction on patients with poor ovarian response (POR) undergoing in vitro fertilization-embryo transfer (IVF-ET), in addition to the underlying molecular mechanisms of these effects. A total of 40 patients were randomly and equally assigned to the treatment or control group. Patients in the treatment group received the Tiaogeng Yijing decoction continuously for three menstrual cycles in addition to microstimulation, while patients in the control group underwent microstimulation only. The following molecules were measured following treatment: Serum levels of sex hormones, including follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2) and anti-mullerian hormone (AMH); follicular fluid levels of cytokines, including growth differentiation factor (GDF)-9, transforming growth factor (TGF)-beta1, leukemia inhibitory factor (LIF), granulocyte-colony stimulating factor (G-CSF) and vascular endothelial growth factor (VEGF); and endometrial levels of cytokines, including integrin alphaVbeta3, TGF-beta1, LIF, G-CSF and VEGF. In addition, the antral follicle count (AFC), mean ovarian diameter (MOD) and pregnancy outcomes were measured. The results revealed that the Tiaogeng Yijing decoction significantly decreased serum levels of FSH and E2, and significantly increased serum AMH levels, the AFC, follicular fluid levels of GDF-9, TGF-beta1 and VEGF, and endometrial levels of integrin alphaVbeta3, TGF-beta1 and VEGF, in addition to pregnancy outcomes (all P<0.05 vs. the control group). However, no significant differences were found in the MOD or levels of LH, LIF and G-CSF. In conclusion, the present study demonstrated that the Tiaogeng Yijing decoction promotes pregnancy outcomes in patients with POR undergoing IVF-ET, and that this effect may be associated with the upregulation of TGF-beta1 and VEGF in the follicular fluid and endometrium. PMID- 29043004 TI - Efficacy of perineural dexamethasone with ropivacaine in adductor canal block for post-operative analgesia in patients undergoing total knee arthroplasty: A randomized controlled trial. AB - Adductor canal block (ACB) is an effective analgesic alternative to femoral nerve block after total knee arthroplasty (TKA). The aim of the present study was to investigate whether addition of dexamethasone to ropivacaine for ACB is able to prolong analgesia and reduce pain. Study participants were randomized into groups receiving ACB with either 0.5% ropivacaine + normal saline (control group; n=93) or 0.5% ropivacaine + 8 mg dexamethasone (dexamethasone group; n=93). All patients were subjected to identical peri-operative management. Patients were assessed for the duration of analgesia by the return of pinprick sensation. A numerical rating scale, ranging from 0 to 10, was used to assess post-operative pain at 6, 12, 18, 24 and 48 h. Opioid use was recorded. Serum C-reactive protein and interleukin-6 levels were measured at 3, 6, 12, 24 and 48 h after surgery. The results revealed that the duration of sensory block was significantly longer in the dexamethasone group (23.42+/-3.35 vs. 14.67+/-2.96 h in control group, P<0.05). The dexamethasone group also had significantly lower pain scores at 6, 12, 18 and 24 h after surgery (all P<0.001), and at 48 h, pain was comparable in the two groups. Reduction in post-operative pain was associated with a decrease in serum C-reactive protein. Morphine use in the first 24 h after surgery was also lower in the dexamethasone group (4.23+/-1.80 vs. 8.42+/-2.44 mg in control group, P<0.05). In conclusion, addition of dexamethasone to ropivacaine for ACB was able to prolong the duration of analgesia and decreased early post-operative pain following TKA. PMID- 29043005 TI - Impact of supplementation with a food-derived microbial community on obesity associated inflammation and gut microbiota composition. AB - BACKGROUND: Obesity is a complex pathology associated with dysbiosis, metabolic alterations, and low-grade chronic inflammation promoted by immune cells, infiltrating and populating the adipose tissue. Probiotic supplementation was suggested to be capable of counteracting obesity-associated immune and microbial alterations, based on its proven immunomodulatory activity and positive effect on gut microbial balance. Traditional fermented foods represent a natural source of live microbes, including environmental strains with probiotic features, which could transiently colonise the gut. The aim of our work was to evaluate the impact of supplementation with a complex foodborne bacterial consortium on obesity-associated inflammation and gut microbiota composition in a mouse model. METHODS: C57BL/6J mice fed a 45% high fat diet (HFD) for 90 days were supplemented with a mixture of foodborne lactic acid bacteria derived from the traditional fermented dairy product "Mozzarella di Bufala Campana" (MBC) or with the commercial probiotic GG strain of Lactobacillus rhamnosus (LGG). Inflammation was assessed in epididymal white adipose tissue (WAT) following HFD. Faecal microbiota composition was studied by next-generation sequencing. RESULTS: Significant reduction of epididymal WAT weight was observed in MBC-treated, as compared to LGG and control, animals. Serum metabolic profiling showed correspondingly reduced levels of triglycerides and higher levels of HDL cholesterol, as well as a trend toward reduction of LDL-cholesterol levels. Analysis of the principal leucocyte subpopulations in epididymal WAT revealed increased regulatory T cells and CD4+ cells in MBC microbiota-supplemented mice, as well as decreased macrophage and CD8+ cell numbers, suggesting anti inflammatory effects. These results were associated with lower levels of pro inflammatory cytokines and chemokines in WAT explants. Faecal bacterial profiling demonstrated increased Firmicutes/Bacteroidetes ratio in all mice groups following HFD. CONCLUSIONS: Taken together, these results indicate a protective effect of MBC microbiota supplementation toward HFD-induced fat accumulation and triglyceride and cholesterol levels, as well as inflammation, suggesting a stronger effect of a mixed microbial consortium vs single-strain probiotic supplementation. The immunomodulatory activity exerted by the MBC microbiota could be due to synergistic interactions within the microbial consortium, highlighting the important role of dietary microbes with yet uncharacterised probiotic effect. PMID- 29043006 TI - Does dietary fat affect inflammatory markers in overweight and obese individuals? a review of randomized controlled trials from 2010 to 2016. AB - BACKGROUND: Obesity, a major cause of death and disability, is increasing worldwide. Obesity is characterized by a chronic, low-grade inflammatory state which is suggested to play a critical role in the development of obesity-related diseases like cardiovascular diseases and type 2 diabetes. In fact, in the hours following consumption of a meal, a transient increase in inflammatory markers occurs, a response that is exaggerated in obese subjects. Dietary composition, including content of dietary fatty acids, may affect this inflammatory response both acutely and chronically, and thereby be predictive of progression of disease. The aim of the review was to summarize the literature from 2010 to 2016 regarding the effects of dietary fat intake on levels of inflammatory markers in overweight and obesity in human randomized controlled trials. METHODS AND RESULTS: We performed a literature search in MEDLINE, EMBASE, and PubMed databases. The literature search included human randomized controlled trials, both postprandial and long-term interventions, from January 2010 to September 2016. In total, 37 articles were included. Interventions with dairy products, vegetable oils, or nuts showed minor effects on inflammatory markers. The most consistent inflammatory-mediating effects were found in intervention with whole diets, which suggests that many components of the diet reduce inflammation synergistically. Furthermore, interventions with weight reduction and different fatty acids did not clearly show beneficial effects on inflammatory markers. CONCLUSION: Most interventions showed either no or minor effects of dietary fat intake on inflammatory markers in overweight and obese subjects. To progress our understanding on how diet and dietary components affect our health, mechanistic studies are required. Hence, future studies should include whole diets and characterization of obese phenotypes at a molecular level, including omics data and gut microbiota. PMID- 29043008 TI - Ancestors' dietary patterns and environments could drive positive selection in genes involved in micronutrient metabolism-the case of cofactor transporters. AB - BACKGROUND: During evolution, humans colonized different ecological niches and adopted a variety of subsistence strategies that gave rise to diverse selective pressures acting across the genome. Environmentally induced selection of vitamin, mineral, or other cofactor transporters could influence micronutrient-requiring molecular reactions and contribute to inter-individual variability in response to foods and nutritional interventions. METHODS: A comprehensive list of genes coding for transporters of cofactors or their precursors was built using data mining procedures from the HGDP dataset and then explored to detect evidence of positive genetic selection. This dataset was chosen since it comprises several genetically diverse worldwide populations whom ancestries have evolved in different environments and thus lived following various nutritional habits and lifestyles. RESULTS: We identified 312 cofactor transporter (CT) genes involved in between-cell or sub-cellular compartment distribution of 28 cofactors derived from dietary intake. Twenty-four SNPs distributed across 14 CT genes separated populations into continental and intra-continental groups such as African hunter gatherers and farmers, and between Native American sub-populations. Notably, four SNPs were located in SLC24A3 with one being a known eQTL of the NCKX3 protein. CONCLUSIONS: These findings could support the importance of considering individual's genetic makeup along with their metabolic profile when tailoring personalized dietary interventions for optimizing health. PMID- 29043009 TI - Electrochemical Oxidation of Hydrogen in Bis(trifluoromethylsulfonyl)imide Ionic Liquids under Anaerobic and Aerobic Conditions. AB - The electrochemical behavior of hydrogen oxidation on a platinum electrode in two aprotic room temperature ionic liquids (RTILs)-1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [Bmim][NTf2] and 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl)imide [Bmpy][NTf2]-was investigated in both anaerobic and aerobic conditions. At platinum electrode in the ILs, the first step of hydrogen oxidation is the formation of Pt-H(ad) (the Tafel step), which is similar to those observed in the aqueous electrolytes. However, there are differences in the oxidation steps (the Heyrovsky and Volmer steps). In ILs, the oxidation of Pt-H(ad) forms a hydrogen radical and a proton rather than a proton or a water in aqueous acid or alkaline electrolytes, respectively. This difference is significant as it results in a completely different following reaction pathway in the anaerobic vs aerobic conditions. A coupled chemical reaction between oxygen and hydrogen oxidation intermediates was observed in aerobic conditions which has a correlation with hydrogen concentrations. Furthermore, the overall rate of hydrogen oxidation is shown to be much higher in [Bmpy][NTf2] than that of [Bmim][NTf2], which is rationalized as the result of both higher solubility of hydrogen and the unique IL-electrode interface structure which promotes the hydrogen adsorption in [Bmpy][NTf2] than that of [Bmim][NTf2]. This study is the first example showing that hydrogen oxidation mechanism in aprotic ILs follows two different oxidation mechanisms in anaerobic and aerobic conditions. PMID- 29043010 TI - Primary Cutaneous Mucinous Carcinoma of the Eyelid. PMID- 29043007 TI - Amino acid supplements and metabolic health: a potential interplay between intestinal microbiota and systems control. AB - Dietary supplementation of essential amino acids (EAAs) has been shown to promote healthspan. EAAs regulate, in fact, glucose and lipid metabolism and energy balance, increase mitochondrial biogenesis, and maintain immune homeostasis. Basic science and epidemiological results indicate that dietary macronutrient composition affects healthspan through multiple and integrated mechanisms, and their effects are closely related to the metabolic status to which they act. In particular, EAA supplementation can trigger different and even opposite effects depending on the catabolic and anabolic states of the organisms. Among others, gut-associated microbial communities (referred to as gut microbiota) emerged as a major regulator of the host metabolism. Diet and host health influence gut microbiota, and composition of gut microbiota, in turn, controls many aspects of host health, including nutrient metabolism, resistance to infection, and immune signals. Altered communication between the innate immune system and the gut microbiota might contribute to complex diseases. Furthermore, gut microbiota and its impact to host health change largely during different life phases such as lactation, weaning, and aging. Here we will review the accumulating body of knowledge on the impact of dietary EAA supplementation on the host metabolic health and healthspan from a holistic perspective. Moreover, we will focus on the current efforts to establish causal relationships among dietary EAAs, gut microbiota, and health during human development. PMID- 29043011 TI - Debates in Allergy Medicine: Allergy skin testing cannot be replaced by molecular diagnosis in the near future. AB - : Percutaneous skin prick tests (SPT) have been considered the preferred method for confirming IgE-mediated sensitization. This reliable and minimally invasive technique correlates with in vivo challenges, has good reproducibility, is easily quantified, and allows analyzing multiple allergens simultaneously. Potent extracts and a proficient tester improve its accuracy. Molecular-based allergy diagnostics (MA-Dx) quantifies allergenic components obtained either from purification of natural sources or recombinant technology to identify the patient's reactivity to those specific allergenic protein components. For a correct allergy diagnosis, the patient selection is crucial. MA-Dx has been shown to have a high specificity, however, as MA-Dx testing can be ordered by any physician, the pre-selection of patients might not always be optimal, reducing test specificity. Also, MA-Dx is less sensitive than in vitro testing with the whole allergen or SPT. Secondly, no allergen-specific immunotherapy (AIT) trial has yet shown efficacy with patients selected on the basis of their MA-Dx results. Thirdly, why would we need molecular diagnosis, as no molecular treatment can yet be offered? Then there are the practical arguments of costs (SPT highly cost-efficient), test availability for MA-Dx still lacking in wide areas of the world and scarce in others. As such, it is hard physicians can build confidence in the test and their interpretation of the MA-Dx results. IN CONCLUSION: as of now these techniques should be reserved for situations of complex allergies and polysensitization; in the future MA-Dx might help to reduce the number of allergens for AIT, but trials are needed to prove this concept. PMID- 29043012 TI - Checklist for a complete chronic urticaria medical history: an easy tool. AB - BACKGROUND: Existing guidelines do not offer a quick, efficient alternative to the patient's recollection of relevant clinical features during anamnesis and physical examination for chronic urticaria (CU). This study aimed to identify specific items reflecting the main characteristics of CU that should be included in a comprehensive medical history for patients with CU. We also aimed to clarify possible eliciting factors for CU to support accurate diagnosis of the disease. METHODS: A panel of postgraduate dermatologists conducted a literature search for relevant studies on CU using Medline, the Cochrane database, and PubMed. RESULTS: We identified82 articles from which we drew a collection of items to inform development of an easy-to-use checklist and collection of items that should be included in a correct medical history. The final version of the checklist included42 items across two areas: essential clues for anamnesis and diagnosis of CU; and typical symptoms/parameters or characteristics according to subtype, etiology, and laboratory findings. Items included time of disease onset; duration, shape, size, color, and distribution of wheals; associated angioedema; atopy; and triggering factors. CONCLUSIONS: Our guide provides an easy-to-use tool to support clinicians to focus, orient themselves, and save time in medical consultations for CU, allowing better diagnosis and management of this disease. PMID- 29043013 TI - miR-125a suppresses viability and glycolysis and induces apoptosis by targeting Hexokinase 2 in laryngeal squamous cell carcinoma. AB - BACKGROUND: miR-125a usually functions as a tumor suppressor in cancers. However, the role of miR-125a in laryngeal squamous cell carcinoma (LSCC) has not been determined. METHODS: qRT-PCR was applied to measure the expression of miR-125a and HK2 mRNA in LSCC tissues and cells. CCK-8 kit and flow cytometry analysis were performed to detect cell viability and apoptosis. Luciferase reporter assay and RNA immunoprecipitation (RIP) were conducted to confirm the relationship between miR-125a and HK2. Commercial test kits were used to determine the concentrations of glucose and l-lactate. Xenograft in mice was constructed to validate the function and mechanism of miR-125a in LSCC tumor growth. RESULTS: A negative correlation was found between miR-125a expression and the level of Hexokinase 2 (HK2) mRNA in LSCC tissues. Functional experiments found that miR 125a inhibited viability and glycolysis and induced apoptosis in LSCC cells. Similarly, HK2 downregulation led to viability and glycolysis inhibition and induction of apoptosis in LSCC cells in vitro. Moreover, miR-125a overexpression suppressed LSCC xenograft growth in vivo. Mechanically, HK2 was verified to be a target of miR-125a by luciferase reporter assays and RNA immunoprecipitation (RIP) assays. Furthermore, restored HK2 expression reversed miR-125a-mediated proliferation and glycolysis inhibition and induction of apoptosis in LSCC cells. CONCLUSIONS: miR-125a suppressed LSCC progression by targeting HK2 in vitro and in vivo, suggesting that miR-125a may be a potential molecular target for LSCC treatment. PMID- 29043014 TI - An open-label study to evaluate the long-term safety and efficacy of lanadelumab for prevention of attacks in hereditary angioedema: design of the HELP study extension. AB - BACKGROUND: Hereditary angioedema (HAE) is characterized by recurrent attacks of subcutaneous or submucosal edema. Attacks are unpredictable, debilitating, and have a significant impact on quality of life. Patients may be prescribed prophylactic therapy to prevent angioedema attacks. Current prophylactic treatments may be difficult to administer (i.e., intravenously), require frequent administrations or are not well tolerated, and breakthrough attacks may still occur frequently. Lanadelumab is a subcutaneously-administered monoclonal antibody inhibitor of plasma kallikrein in clinical development for prophylaxis of hereditary angioedema attacks. A Phase 1b study supported its efficacy in preventing attacks. A Phase 3, randomized, double-blind, placebo-controlled, parallel-arm study has been completed and an open-label extension is currently ongoing. METHODS/DESIGN: The primary objective of the open-label extension is to evaluate the long-term safety of repeated subcutaneous administrations of lanadelumab in patients with type I/II HAE. Secondary objectives include evaluation of efficacy and time to first angioedema attack to determine outer bounds of the dosing interval. The study will also evaluate immunogenicity, pharmacokinetics/pharmacodynamics, quality of life, characteristics of breakthrough attacks, ease of self-administration, and safety/efficacy in patients who switch to lanadelumab from another prophylactic therapy. The open label extension will enroll patients who completed the double-blind study ("rollover patients") and those who did not participate in the double-blind study ("non-rollover patients"), which includes patients who may or may not be currently using another prophylactic therapy. Rollover patients will receive a single 300 mg dose of lanadelumab on Day 0 and the second dose after the patient's first confirmed angioedema attack. Thereafter, lanadelumab will be administered every 2 weeks. Non-rollover patients will receive 300 mg lanadelumab every 2 weeks regardless of the first attack. All patients will receive their last dose on Day 350 (maximum of 26 doses), and will then undergo a 4-week follow up. DISCUSSION: Prevention of attacks can reduce the burden of illness associated with HAE. Prophylactic therapy requires extended, repeated dosing and the results of this study will provide important data on the long-term safety and efficacy of lanadelumab, a monoclonal antibody inhibitor of plasma kallikrein for subcutaneous administration for the treatment of HAE. Trial registration NCT02741596. PMID- 29043015 TI - "Show me which parasites you carry and I will tell you what you eat", or how to infer the trophic behavior of hematophagous arthropods feeding on wildlife. AB - Most emerging infectious diseases are zoonoses originating from wildlife among which vector-borne diseases constitute a major risk for global human health. Understanding the transmission routes of mosquito-borne pathogens in wildlife crucially depends on recording mosquito blood-feeding patterns. During an extensive longitudinal survey to study sylvatic anophelines in two wildlife reserves in Gabon, we collected 2,415 mosquitoes of which only 0.3% were blood fed. The molecular analysis of the blood meals contained in guts indicated that all the engorged mosquitoes fed on wild ungulates. This direct approach gave only limited insights into the trophic behavior of the captured mosquitoes. Therefore, we developed a complementary indirect approach that exploits the occurrence of natural infections by host-specific haemosporidian parasites to infer Anopheles trophic behavior. This method showed that 74 infected individuals carried parasites of great apes (58%), ungulates (30%), rodents (11%) and bats (1%). Accordingly, on the basis of haemosporidian host specificity, we could infer different feeding patterns. Some mosquito species had a restricted host range (An. nili only fed on rodents, whereas An. carnevalei, An. coustani, An. obscurus, and An. paludis only fed on wild ungulates). Other species had a wider host range (An. gabonensis could feed on rodents and wild ungulates, whereas An. moucheti and An. vinckei bit rodents, wild ungulates and great apes). An. marshallii was the species with the largest host range (rodents, wild ungulates, great apes, and bats). The indirect method substantially increased the information that could be extracted from the sample by providing details about host-feeding patterns of all the mosquito species collected (both fed and unfed). Molecular sequences of hematophagous arthropods and their parasites will be increasingly available in the future; exploitation of such data with the approach we propose here should provide key insights into the feeding patterns of vectors and the ecology of vector-borne diseases. PMID- 29043016 TI - Population structure of a widespread bat (Tadarida brasiliensis) in an island system. AB - Dispersal is a driving factor in the creation and maintenance of biodiversity, yet little is known about the effects of habitat variation and geography on dispersal and population connectivity in most mammalian groups. Bats of the family Molossidae are fast-flying mammals thought to have potentially high dispersal ability, and recent studies have indicated gene flow across hundreds of kilometers in continental North American populations of the Brazilian free-tailed bat, Tadarida brasiliensis. We examined the population genetics, phylogeography, and morphology of this species in Florida and across islands of The Bahamas, which are part of an island archipelago in the West Indies. Previous studies indicate that bats in the family Phyllostomidae, which are possibly less mobile than members of the family Molossidae, exhibit population structuring across The Bahamas. We hypothesized that T. brasiliensis would show high population connectivity throughout the islands and that T. brasiliensis would show higher connectivity than two species of phyllostomid bats that have been previously examined in The Bahamas. Contrary to our predictions, T. brasiliensis shows high population structure between two groups of islands in The Bahamas, similar to the structure exhibited by one species of phyllostomid bat. Phylogenetic and morphological analyses suggest that this structure may be the result of ancient divergence between two populations of T. brasiliensis that subsequently came into contact in The Bahamas. Our findings additionally suggest that there may be cryptic species within T. brasiliensis in The Bahamas and the West Indies more broadly. PMID- 29043017 TI - Phenotypic selection on flowering phenology and pollination efficiency traits between Primula populations with different pollinator assemblages. AB - Floral traits have largely been attributed to phenotypic selection in plant pollinator interactions. However, the strength of this link has rarely been ascertained with real pollinators. We conducted pollinator observations and estimated selection through female fitness on flowering phenology and floral traits between two Primula secundiflora populations. We quantified pollinator mediated selection by subtracting estimates of selection gradients of plants receiving supplemental hand pollination from those of plants receiving open pollination. There was net directional selection for an earlier flowering start date at populations where the dominant pollinators were syrphid flies, and flowering phenology was also subjected to stabilized quadratic selection. However, a later flowering start date was significantly selected at populations where the dominant pollinators were legitimate (normal pollination through the corolla tube entrance) and illegitimate bumblebees (abnormal pollination through nectar robbing hole which located at the corolla tube), and flowering phenology was subjected to disruptive quadratic selection. Wider corolla tube entrance diameter was selected at both populations. Furthermore, the strength of net directional selection on flowering start date and corolla tube entrance diameter was stronger at the population where the dominant pollinators were syrphid flies. Pollinator-mediated selection explained most of the between-population variations in the net directional selection on flowering phenology and corolla tube entrance diameter. Our results suggested the important influence of pollinator-mediated selection on floral evolution. Variations in pollinator assemblages not only resulted in variation in the direction of selection but also the strength of selection on floral traits. PMID- 29043018 TI - Invasive cane toads are unique in shape but overlap in ecological niche compared to Australian native frogs. AB - Invasive species are an important issue worldwide but predicting invasiveness, and the underlying mechanisms that cause it, is difficult. There are several primary hypotheses to explain invasion success. Two main hypothesis based on niche spaces stand out as alternative, although not exclusive. The empty niche hypothesis states that invaders occupy a vacant niche space in the recipient community, and the niche competition hypothesis states that invaders overlap with native species in niche space. Studies on trait similarity/dissimilarity between the invader and native species can provide information on their niche overlap. Here, we use the highly invasive and well-studied cane toad (Rhinella marina) to test these two hypotheses in Australia, and assess its degree of overlap with native species in several niche dimensions. We compare extensive morphological and environmental data of this successful invader to 235 species (97%) of native Australian frogs. Our study is the first to document the significant morphological differences between the invasive cane toad and a continent-wide frog radiation: despite significant environmental overlap, cane toads were distinct in body size and shape from most Australian frog species, suggesting that in addition to their previously documented phenotypic plasticity and wide environmental and trophic niche breadth, their unique shape also may have contributed to their success as an invasive species in Australia. Thus, the invasive success of cane toads in Australia may be explained through them successfully colonizing an empty niche among Australian anurans. Our results support that the cane toad's distinct morphology may have played a unique role in the invasiveness of this species in Australia, which coupled with a broad environmental niche breadth, would have boosted their ability to expand their distribution across Australia. We also propose RLLR (Relative limb length ratio) as a potentially useful measure of identifying morphological niche uniqueness and a potential measure of invasiveness potential in anuran amphibians. PMID- 29043019 TI - Effects of livestock grazing on rangeland biodiversity: A meta-analysis of grouse populations. AB - Livestock grazing affects over 60% of the world's agricultural lands and can influence rangeland ecosystem services and the quantity and quality of wildlife habitat, resulting in changes in biodiversity. Concomitantly, livestock grazing has the potential to be detrimental to some wildlife species while benefiting other rangeland organisms. Many imperiled grouse species require rangeland landscapes that exhibit diverse vegetation structure and composition to complete their life cycle. However, because of declining populations and reduced distributions, grouse are increasingly becoming a worldwide conservation concern. Grouse, as a suite of upland gamebirds, are often considered an umbrella species for other wildlife and thus used as indicators of rangeland health. With a projected increase in demand for livestock products, better information will be required to mitigate the anthropogenic effects of livestock grazing on rangeland biodiversity. To address this need, we completed a data-driven and systematic review of the peer-reviewed literature to determine the current knowledge of the effects of livestock grazing on grouse populations (i.e., chick production and population indices) worldwide. Our meta-analysis revealed an overall negative effect of livestock grazing on grouse populations. Perhaps more importantly, we identified an information void regarding the effects of livestock grazing on the majority of grouse species. Additionally, the reported indirect effects of livestock grazing on grouse species were inconclusive and more reflective of differences in the experimental design of the available studies. Future studies designed to evaluate the direct and indirect effects of livestock grazing on wildlife should document (i) livestock type, (ii) timing and frequency of grazing, (iii) duration, and (iv) stocking rate. Much of this information was lacking in the available published studies we reviewed, but is essential when making comparisons between different livestock grazing management practices and their potential impacts on rangeland biodiversity. PMID- 29043020 TI - Secondary invasion: When invasion success is contingent on other invaders altering the properties of recipient ecosystems. AB - Positive interactions between exotic species may increase ecosystem-level impacts and potentially facilitate the entry and spread of other exotic species. Invader facilitated invasion success-"secondary invasion"-is a key conceptual aspect of the well-known invasional meltdown hypothesis, but remains poorly defined and empirically underexplored. Drawing from heuristic models and published empirical studies, we explore this form of "secondary invasion" and discuss the phenomenon within the recognized conceptual framework of the determinants of invasion success. The term "secondary invasion" has been used haphazardly in the literature to refer to multiple invasion phenomena, most of which have other more accepted titles. Our usage of the term secondary invasion is akin to "invader facilitated invasion," which we define as the phenomenon in which the invasion success of one exotic species is contingent on the presence, influence, and impacts of one or more other exotic species. We present case studies of secondary invasion whereby primary invaders facilitate the entry or establishment of exotic species into communities where they were previously excluded from becoming invasive. Our synthesis, discussion, and conceptual framework of this type of secondary invasion provides a useful reference to better explain how invasive species can alter key properties of recipient ecosystems that can ultimately determine the invasion success of other species. This study increases our appreciation for complex interactions following invasion and highlights the impacts of invasive species themselves as possible determinants of invasion success. We anticipate that highlighting "secondary invasion" in this way will enable studies reporting similar phenomena to be identified and linked through consistent terminology. PMID- 29043021 TI - Genetic wealth, population health: Major histocompatibility complex variation in captive and wild ring-tailed lemurs (Lemur catta). AB - Across species, diversity at the major histocompatibility complex (MHC) is critical to individual disease resistance and, hence, to population health; however, MHC diversity can be reduced in small, fragmented, or isolated populations. Given the need for comparative studies of functional genetic diversity, we investigated whether MHC diversity differs between populations which are open, that is experiencing gene flow, versus populations which are closed, that is isolated from other populations. Using the endangered ring-tailed lemur (Lemur catta) as a model, we compared two populations under long-term study: a relatively "open," wild population (n = 180) derived from Beza Mahafaly Special Reserve, Madagascar (2003-2013) and a "closed," captive population (n = 121) derived from the Duke Lemur Center (DLC, 1980-2013) and from the Indianapolis and Cincinnati Zoos (2012). For all animals, we assessed MHC-DRB diversity and, across populations, we compared the number of unique MHC-DRB alleles and their distributions. Wild individuals possessed more MHC-DRB alleles than did captive individuals, and overall, the wild population had more unique MHC-DRB alleles that were more evenly distributed than did the captive population. Despite management efforts to maintain or increase genetic diversity in the DLC population, MHC diversity remained static from 1980 to 2010. Since 2010, however, captive-breeding efforts resulted in the MHC diversity of offspring increasing to a level commensurate with that found in wild individuals. Therefore, loss of genetic diversity in lemurs, owing to small founder populations or reduced gene flow, can be mitigated by managed breeding efforts. Quantifying MHC diversity within individuals and between populations is the necessary first step to identifying potential improvements to captive management and conservation plans. PMID- 29043022 TI - Using genetic tools to estimate the prevalence of non-native red deer (Cervus elaphus) in a Western European population. AB - Game species like the red deer have been subjected to anthropogenic impacts for centuries. Translocations are often carried out-sometimes illegally-not only for sporting purposes, but also to increase trophy quality, reduce inbreeding, or mitigate bottlenecks after excessive persecution. Apart from the blurring of large-scale genetic structure, translocations without adequate quarantine measure risk introducing pathogens into potentially immunologically naive populations. It is therefore important to understand the frequency of clandestine translocations. Identification of non-autochthonous animals and their potential origin is often difficult and, in red deer, has been hampered by the lack of large-scale genotypic datasets for comparison. In the present study, we make use of a recently published European-wide microsatellite dataset to detect and quantify the presence of non-autochthonous red deer in a large population sample (n = 1,780) from Central Europe (Belgium). Using factorial correspondence analysis, assignment tests and Bayesian clustering algorithms we arrive at an estimate of 3.7% non-autochthonous animals (or their descendants). Some of these animals were assigned to a nearby French population and may have immigrated into Belgium naturally, but the large majority must have been introduced by humans. Our analysis pointed to the British Isles and Germany/Poland as the potential origin of many introduced deer, regions known to have been source populations for translocations in Europe and beyond. We found evidence for recreational hunters using carcasses from farmed deer to fulfill mandatory hunting quotas. Our study is the first to quantify the extent of human-mediated introductions in a European game species at such a large scale with large and representative sample sizes. PMID- 29043023 TI - Sapling growth rates reveal conspecific negative density dependence in a temperate forest. AB - Local tree species diversity is maintained in part by conspecific negative density dependence (CNDD). This pervasive mechanism occurs in a variety of forms and ecosystems, but research to date has been heavily skewed toward tree seedling survival in tropical forests. To evaluate CNDD more broadly, we investigated how sapling growth rates were affected by conspecific adult neighbors in a fully mapped 25.6 ha temperate deciduous forest. We examined growth rates as a function of the local adult tree neighborhood (via spatial autoregressive modeling) and compared the spatial positioning of faster-growing and slower-growing saplings with respect to adult conspecific and heterospecific trees (via bivariate point pattern analysis). In addition, to determine whether CNDD-driven variation in growth rates leaves a corresponding spatial signal, we extended our point pattern analysis to a static, growth-independent comparison of saplings and the next larger size class. We found that negative conspecific effects on sapling growth were most prevalent. Five of the nine species that were sufficiently abundant for analysis exhibited CNDD, while only one species showed evidence of a positive conspecific effect, and one or two species, depending on the analysis, displayed heterospecific effects. There was general agreement between the autoregressive models and the point pattern analyses based on sapling growth rates, but point pattern analyses based on single-point-in-time size classes yielded results that differed markedly from the other two approaches. Our work adds to the growing body of evidence that CNDD is an important force in temperate forests, and demonstrates that this process extends to sapling growth rates. Further, our findings indicate that point pattern analyses based solely on size classes may fail to detect the process of interest (e.g., neighborhood-driven variation in growth rates), in part due to the confounding of tree size and age. PMID- 29043024 TI - Validating distribution models for twelve endemic bird species of tropical dry forest in western Mexico. AB - Considering the high biodiversity and conservation concerns of the tropical dry forest, this study aim is to predict and evaluate the potential and current distributions of twelve species of endemic birds which distribute along the western slope of Mexico. The main goal is to evaluate altogether different methods for predicting actual species distribution models (ADMs) of the twelve species including the identification of key environmental potential limiting factors. ADMs for twelve endemic Mexican birds were generated and validated by means of applying: (1) three widely used species niche modeling approaches (ENFA, Garp, and Maxent); (2) two thresholding methods, based on ROC curves and Kappa Index, for transforming continuous models to presence/absence (binary) models; (3) documented habitat-species associations for reducing species potential distribution models (PDMs); and (4) field occurrence data for validating final ADMs. Binary PDMs' predicted areas seemed overestimated, while ADMs looked drastically reduced and fragmented because of the approach taken for eliminating those predicted areas which were documented as unsuitable habitat types for individual species. Results indicated that both thresholding methods generated similar threshold values for species modeled by each of the three species distribution modeling algorithms (SDMAs). A Wilcoxon signed-rank test, however, showed that Kappa values were generally higher than ROC curve for species modeled by ENFA and Maxent, while for Garp models there were no significant differences. Prediction success (e.g., true presences percentage) obtained from field occurrence data revealed a range of 50%-82% among the 12 species. The three modeling approaches applied enabled to test the application of two thresholding methods for transforming continuous to binary (presence/absence) models. The use of documented habitat preferences resulted in drastic reductions and fragmentation of PDMs. However, ADMs predictive success rate, tested using field species occurrence data, varied between 50 and 82%. PMID- 29043025 TI - Diversity and distribution of genetic variation in gammarids: Comparing patterns between invasive and non-invasive species. AB - Biological invasions are worldwide phenomena that have reached alarming levels among aquatic species. There are key challenges to understand the factors behind invasion propensity of non-native populations in invasion biology. Interestingly, interpretations cannot be expanded to higher taxonomic levels due to the fact that in the same genus, there are species that are notorious invaders and those that never spread outside their native range. Such variation in invasion propensity offers the possibility to explore, at fine-scale taxonomic level, the existence of specific characteristics that might predict the variability in invasion success. In this work, we explored this possibility from a molecular perspective. The objective was to provide a better understanding of the genetic diversity distribution in the native range of species that exhibit contrasting invasive propensities. For this purpose, we used a total of 784 sequences of the cytochrome c oxidase subunit I of mitochondrial DNA (mtDNA-COI) collected from seven Gammaroidea, a superfamily of Amphipoda that includes species that are both successful invaders (Gammarus tigrinus, Pontogammarus maeoticus, and Obesogammarus crassus) and strictly restricted to their native regions (Gammarus locusta, Gammarus salinus, Gammarus zaddachi, and Gammarus oceanicus). Despite that genetic diversity did not differ between invasive and non-invasive species, we observed that populations of non-invasive species showed a higher degree of genetic differentiation. Furthermore, we found that both geographic and evolutionary distances might explain genetic differentiation in both non-native and native ranges. This suggests that the lack of population genetic structure may facilitate the distribution of mutations that despite arising in the native range may be beneficial in invasive ranges. The fact that evolutionary distances explained genetic differentiation more often than geographic distances points toward that deep lineage divergence holds an important role in the distribution of neutral genetic diversity. PMID- 29043026 TI - Predators do not spill over from forest fragments to maize fields in a landscape mosaic in central Argentina. AB - South America is undergoing a rapid and large-scale conversion of natural habitats to cultivated land. Ecosystem services still remain important but their level and sustainability are not known. We quantified predation intensity in an Argentinian agricultural landscape containing remnants of the original chaco serrano forest using artificial sentinel prey. We sought to identify the main predators and the effect of landscape configuration and maize phenology on predation pressure by invertebrate and vertebrate predators in this landscape. The most common predators were chewing insects (50.4% predation events), birds (22.7%), and ants (17.5%). Overall predation rates in forest fragments (41.6% per day) were significantly higher than in the surrounding maize fields (21.5% per day). Invertebrate predation was higher inside and at the edge of forest fragments than within fields, and did not change with increasing distance from a fragment edge, indicating a lack of spillover from the native habitat remnants to the cultivated matrix at the local scale. Distance from a continuous forest had a positive impact on predation by invertebrates and a negative impact on vertebrate predation. PMID- 29043027 TI - Genetic diversity and sex-bias dispersal of plateau pika in Tibetan plateau. AB - Dispersal is an important aspect in organism's life history which could influence the rate and outcome of evolution of organism. Plateau pika is the keystone species in community of grasslands in Tibetan Plateau. In this study, we combine genetic and field data to character the population genetic pattern and dispersal dynamics in plateau pika (Ochotona curzoniae). Totally, 1,352 individual samples were collected, and 10 microsatellite loci were analyzed. Results revealed that plateau pika possessed high genetic diversity and inbreeding coefficient in a fine-scale population. Dispersal distance is short and restricted in about 20 m. An effective sex-biased dispersal strategy is employed by plateau pika: males disperse in breeding period for mating while females do it after reproduction for offspring and resource. Inbreeding avoiding was shown as the common driving force of dispersal, together with the other two factors, environment and resource. In addition, natal dispersal is female biased. More detailed genetic analyzes are needed to confirm the role of inbreeding avoidance and resource competition as ultimate cause of dispersal patterns in plateau pika. PMID- 29043028 TI - Enhanced effects of biotic interactions on predicting multispecies spatial distribution of submerged macrophytes after eutrophication. AB - Water eutrophication creates unfavorable environmental conditions for submerged macrophytes. In these situations, biotic interactions may be particularly important for explaining and predicting the submerged macrophytes occurrence. Here, we evaluate the roles of biotic interactions in predicting spatial occurrence of submerged macrophytes in 1959 and 2009 for Dianshan Lake in eastern China, which became eutrophic since the 1980s. For the four common species occurred in 1959 and 2009, null species distribution models based on abiotic variables and full models based on both abiotic and biotic variables were developed using generalized linear model (GLM) and boosted regression trees (BRT) to determine whether the biotic variables improved the model performance. Hierarchical Bayesian-based joint species distribution models capable of detecting paired biotic interactions were established for each species in both periods to evaluate the changes in the biotic interactions. In most of the GLM and BRT models, the full models showed better performance than the null models in predicting the species presence/absence, and the relative importance of the biotic variables in the full models increased from less than 50% in 1959 to more than 50% in 2009 for each species. Moreover, co-occurrence correlation of each paired species interaction was higher in 2009 than that in 1959. The findings suggest biotic interactions that tend to be positive play more important roles in the spatial distribution of multispecies assemblages of macrophytes and should be included in prediction models to improve prediction accuracy when forecasting macrophytes' distribution under eutrophication stress. PMID- 29043029 TI - Prevalence and genetic diversity of Batrachochytrium dendrobatidis in Central African island and continental amphibian communities. AB - The fungal pathogen Batrachochytrium dendrobatidis (Bd) infects hundreds of amphibian species and is implicated in global amphibian declines. Bd is comprised of several lineages that differ in pathogenicity, thus, identifying which Bd strains are present in a given amphibian community is essential for understanding host-pathogen dynamics. The presence of Bd has been confirmed in Central Africa, yet vast expanses of this region have not yet been surveyed for Bd prevalence, and the genetic diversity of Bd is largely unknown in this part of the world. Using retrospective surveys of museum specimens and contemporary field surveys, we estimated the prevalence of Bd in Central African island and continental amphibian assemblages, and genotyped strains of Bd present in each community. Our sampling of museum specimens included just a few individuals collected in the Gulf of Guinea archipelago prior to 1998, yet one of these individuals was Bd positive indicating that the pathogen has been on Bioko Island since 1966. We detected Bd across all subsequent sample years in our study and found modest support for a relationship between host life history and Bd prevalence, a positive relationship between prevalence and host community species richness, and no significant relationship between elevation and prevalence. The Global Panzootic Lineage (Bd GPL) was present in all the island and continental amphibian communities we surveyed. Our results are consistent with a long-term and widespread distribution of Bd in amphibian communities of Gabon and the Gulf of Guinea archipelago. PMID- 29043030 TI - The effect of nitrogen availability and water conditions on competition between a facultative CAM plant and an invasive grass. AB - Plants with crassulacean acid metabolism (CAM) are increasing their abundance in drylands worldwide. The drivers and mechanisms underlying the increased dominance of CAM plants and CAM expression (i.e., nocturnal carboxylation) in facultative CAM plants, however, remain poorly understood. We investigated how nutrient and water availability affected competition between Mesembryanthemum crystallinum (a model facultative CAM species) and the invasive C3 grass Bromus mollis that co occur in California's coastal grasslands. Specifically we investigated the extent to which water stress, nutrients, and competition affect nocturnal carboxylation in M. crystallinum. High nutrient and low water conditions favored M. crystallinum over B. mollis, in contrast to high water conditions. While low water conditions induced nocturnal carboxylation in 9-week-old individuals of M. crystallinum, in these low water treatments, a 66% reduction in nutrient applied over the entire experiment did not further enhance nocturnal carboxylation. In high water conditions M. crystallinum both alone and in association with B. mollis did not perform nocturnal carboxylation, regardless of the nutrient levels. Thus, nocturnal carboxylation in M. crystallinum was restricted by strong competition with B. mollis in high water conditions. This study provides empirical evidence of the competitive advantage of facultative CAM plants over grasses in drought conditions and of the restricted ability of M. crystallinum to use their photosynthetic plasticity (i.e., ability to switch to CAM behavior) to compete with grasses in well-watered conditions. We suggest that a high drought tolerance could explain the increased dominance of facultative CAM plants in a future environment with increased drought and nitrogen deposition, while the potential of facultative CAM plants such as M. crystallinum to expand to wet environments is expected to be limited. PMID- 29043031 TI - Postbreeding elevational movements of western songbirds in Northern California and Southern Oregon. AB - Migratory species employ a variety of strategies to meet energetic demands of postbreeding molt. As such, at least a few species of western Neotropical migrants are known to undergo short-distance upslope movements to locations where adults molt body and flight feathers (altitudinal molt migration). Given inherent difficulties in measuring subtle movements of birds occurring in western mountains, we believe that altitudinal molt migration may be a common yet poorly documented phenomenon. To examine prevalence of altitudinal molt migration, we used 29 years of bird capture data in a series of linear mixed-effect models for nine commonly captured species that breed in northern California and southern Oregon. Candidate models were formulated a priori to examine whether elevation and distance from the coast can be used to predict abundance of breeding and molting birds. Our results suggest that long-distance migrants such as Orange crowned Warbler (Oreothlypis celata) moved higher in elevation and Audubon's Warbler (Setophaga coronata) moved farther inland to molt after breeding. Conversely, for resident and short-distance migrants, we found evidence that birds either remained on the breeding grounds until they finished molting, such as Song Sparrow (Melospiza melodia) or made small downslope movements, such as American Robin (Turdus migratorius). We conclude that altitudinal molt migration may be a common, variable, and complex behavior among western songbird communities and is related to other aspects of a species' natural history, such as migratory strategy. PMID- 29043032 TI - Tracing coco de mer's reproductive history: Pollen and nutrient limitations reduce fecundity. AB - Habitat degradation can reduce or even prevent the reproduction of previously abundant plant species. To develop appropriate management strategies, we need to understand the reasons for reduced recruitment in degraded ecosystems. The dioecious coco de mer palm (Lodoicea maldivica) produces by far the largest seeds of any plant. It is a keystone species in an ancient palm forest that occurs only on two small islands in the Seychelles, yet contemporary rates of seed production are low, especially in fragmented populations. We developed a method to infer the recent reproductive history of female trees from morphological evidence present on their inflorescences. We then applied this method to investigate the effects of habitat disturbance and soil nutrient conditions on flower and fruit production. The 57 female trees in our sample showed a 19.5-fold variation in flower production among individuals over a seven-year period. Only 77.2% of trees bore developing fruits (or had recently shed fruits), with the number per tree ranging from zero to 43. Flower production was positively correlated with concentrations of available soil nitrogen and potassium and did not differ significantly between closed and degraded habitat. Fruiting success was positively correlated with pollen availability, as measured by numbers and distance of neighboring male trees. Fruit set was lower in degraded habitat than in closed forest, while the proportion of abnormal fruits that failed to develop was higher in degraded habitat. Seed size recorded for a large sample of seeds collected by forest wardens varied widely, with fresh weights ranging from 1 to 18 kg. Synthesis: Shortages of both nutrients and pollen appear to limit seed production of Lodoicea in its natural habitat, with these factors affecting different stages of the reproductive process. Flower production varies widely amongst trees, while seed production is especially low in degraded habitat. The size of seeds is also very variable. We discuss the implications of these findings for managing this ecologically and economically important species. PMID- 29043033 TI - Behavior and season affect crayfish detection and density inference using environmental DNA. AB - Although the presence/absence of aquatic invertebrates using environmental DNA (eDNA) has been established for several species, inferring population densities has remained problematic. The invasive American signal crayfish, Pacifastacus leniusculus (Dana), is the leading cause of decline in the UK's only native crayfish species, Austropotamobius pallipes (Lereboullet). Methods to detect species at low abundances offer the opportunity for the early detection, and potential eradication, of P. leniusculus before population densities reach threatening levels in areas occupied by A. pallipes. Using a factorial experimental design with aquaria, we investigated the impacts of biomass, sex ratio, and fighting behavior on the amount of eDNA released by P. leniusculus, with the aim to infer density per aquarium depending on treatments. The amount of target eDNA in water samples from each aquarium was measured using the quantitative Polymerase Chain Reaction. We show that the presence of eggs significantly increases the concentration of crayfish eDNA per unit of mass, and that there is a significant relationship between eDNA concentration and biomass when females are egg-bearing. However, the relationship between crayfish biomass and eDNA concentration is lost in aquaria without ovigerous females. Female specific tanks had significantly higher eDNA concentrations than male-specific tanks, and the prevention of fighting did not impact the amount of eDNA in the water. These results indicate that detection and estimate of crayfish abundance using eDNA may be more effective while females are ovigerous. This information should guide further research for an accurate estimation of crayfish biomass in the field depending on the season. Our results indicate that detection and quantification of egg-laying aquatic invertebrate species using eDNA could be most successful during periods when eggs are developing in the water. We recommend that practitioners consider the reproductive cycle of target species when attempting to study or detect aquatic species using eDNA in the field. PMID- 29043034 TI - Sea level rise may increase extinction risk of a saltmarsh ontogenetic habitat specialist. AB - Specialist species are more vulnerable to environmental change than generalist species. For species with ontogenetic niche shifts, specialization may occur at a particular life stage making those stages more susceptible to environmental change. In the salt marshes in the northeast U.S., accelerated sea level rise is shifting vegetation patterns from flood-intolerant species such as Spartina patens to the flood-tolerant Spartina alterniflora. We tested the potential impact of this change on the coffee bean snail, Melampus bidentatus, a numerically dominant benthic invertebrate with an ontogenetic niche shift. From a survey of eight marshes throughout the northeast U.S., small snails were found primarily in S. patens habitats, and large snails were found primarily in stunted S. alterniflora habitats. When transplanted into stunted S. alterniflora, small snails suffered significantly higher mortality relative to those in S. patens habitats; adult snail survivorship was similar between habitats. Because other habitats were not interchangeable with S. patens for young snails, these results suggest that Melampus is an ontogenetic specialist where young snails are habitat specialists and adult snails are habitat generalists. Temperature was significantly higher and relative humidity significantly lower in stunted S. alterniflora than in S. patens. These data suggest that thermal and desiccation stress restricted young snails to S. patens habitat, which has high stem density and a layer of thatch that protects snails from environmental stress. Other authors predict that if salt marshes in the northeast U.S. are unable to migrate landward, sea level rise will eliminate S. patens habitats. We suggest that if a salt marsh loses its S. patens habitats, it will also lose its coffee bean snails. Our results demonstrate the need to consider individual life stages when determining a species' vulnerability to global change. PMID- 29043035 TI - Insights into the Vitis complex in the Danube floodplain (Austria). AB - European grapevine populations quickly disappeared from most of their range, massively killed by the spread of North American grapevine pests and diseases. Nowadays taxonomic pollution represents a new threat. A large Vitis complex involves escaped cultivars, rootstocks, and wild grapevines. The study aimed to provide insight into the Vitis complex in the Danube region through field and genetic analyses. Among the five other major rivers in Europe which still host wild grapevine populations, the Danube floodplain is the only one benefiting from an extensive protected forest area (93 km2) and an relatively active dynamic flood pulse. The Donau-Auen National Park also regroups the largest wild grapevine population in Europe. Ninety-two percent of the individuals collected in the park were true wild grapevines, and 8% were hybrids and introgressed individuals of rootstocks, wild grapevines, and cultivars. These three groups are interfertile acting either as pollen donor or receiver. Hybrids were established within and outside the dykes, mostly in anthropized forest edges. The best developed individuals imply rootstock genes. They establish in the most erosive parts of the floodplain. 42% of the true wild grapevines lived at the edges of forest/meadow, 33.3% at the edges forest/channels, and 23.9% in forest gaps. DBH (Diameter Breast Height) varied significantly with the occurrence of flooding. Clones were found in both true wild and hybrids/introgressed grapevines. The process of cloning seemed to be prevented in places where flooding dynamics is reduced. The current global distribution of true wild grapevines shows a strong tendency toward clustering, in sites where forestry practices were the most extensive. However, the reduced flooding activity is a danger for long-term sustainability of the natural wild grapevine population. PMID- 29043036 TI - Quantifying ecosystem service trade-offs for plantation forest management to benefit provisioning and regulating services. AB - There is increasing interest worldwide regarding managing plantation forests in a manner that maintains or improves timber production, enhances ecosystem services, and promotes long-term sustainability of forest resources. We selected the Gan River Basin, the largest catchment of Poyang Lake and a region with a typical plantation distribution in South China, as the study region. We evaluated and mapped four important forest ecosystem services, including wood volume, carbon storage, water yield, and soil retention at a 30 * 30 m resolution, then quantified their trade-offs and synergies at the county and subwatershed scales. We found that the wood volume and carbon storage services, as well as the soil retention and water yield, exhibited synergistic relationships. However, the carbon storage displayed a trade-off relationship with the water yield. Additionally, we compared the beneficial spatial characteristics among dominant species in the study region. The results showed that the Chinese fir forest and the pine forest exhibited lower overall benefits than natural forests including the broad-leaved forest and the bamboo forest. To propose a suitable management strategy for the study region, method of spatial cluster analysis was used based on the four eco-services at the subwatershed scale. The basin was divided into four management groups instead of treating the region as a homogenous management region. Finally, we proposed more specific and diverse management strategies to optimize forest benefits throughout the entire region. PMID- 29043037 TI - Sperm whale dive behavior characteristics derived from intermediate-duration archival tag data. AB - Here, we describe the diving behavior of sperm whales (Physeter macrocephalus) using the Advanced Dive Behavior (ADB) tag, which records depth data at 1-Hz resolution and GPS-quality locations for over 1 month, before releasing from the whale for recovery. A total of 27 ADB tags were deployed on sperm whales in the central Gulf of California, Mexico, during spring 2007 and 2008, of which 10 were recovered for data download. Tracking durations of all tags ranged from 0 to 34.5 days (median = 2.3 days), and 0.6 to 26.6 days (median = 5.0 days) for recovered tags. Recovered tags recorded a median of 50.8 GPS-quality locations and 42.6 dives per day. Dive summary metrics were generated for archived dives and were subsequently classified into six categories using hierarchical cluster analysis. A mean of 77% of archived dives per individual were one of four dive categories with median Maximum Dive Depth >290 m (V-shaped, Mid-water, Benthic, or Variable), likely associated with foraging. Median Maximum Dive Depth was <30 m for the other two categories (Short- and Long-duration shallow dives), likely representing socializing or resting behavior. Most tagged whales remained near the tagging area during the tracking period, but one moved north of Isla Tiburon, where it appeared to regularly dive to, and travel along the seafloor. Three whales were tagged on the same day in 2007 and subsequently traveled in close proximity (<1 km) for 2 days. During this period, the depth and timing of their dives were not coordinated, suggesting they were foraging on a vertically heterogeneous prey field. The multiweek dive records produced by ADB tags enabled us to generate a robust characterization of the diving behavior, activity budget, and individual variation for an important predator of the mesopelagos over temporal and spatial scales not previously possible. PMID- 29043038 TI - Habitat niche breadth predicts invasiveness in solitary ascidians. AB - A major focus of invasion biology is understanding the traits associated with introduction success. Most studies assess these traits in the invaded region, while only few compare nonindigenous species to the pool of potential invaders in their native region. We focused on the niche breadth hypothesis, commonly evoked but seldom tested, which states that generalist species are more likely to become introduced as they are capable of thriving under a wide set of conditions. Based on the massive introduction of tropical species into the Mediterranean via the Suez Canal (Lessepsian migration), we defined ascidians in the Red Sea as the pool of potential invaders. We constructed unique settlement plates, each representing six different niches, to assess ascidian niche breadth, and deployed them in similar habitats in the native and invaded regions. For each species found on plates, we evaluated its abundance, relative abundance across successional stages, and niche breadth, and then compared (1) species in the Red Sea known to have been introduced into the Mediterranean (Lessepsian species) and those not known from the Mediterranean (non-Lessepsian); and (2) nonindigenous and indigenous species in the Mediterranean. Lessepsian species identified on plates in the Red Sea demonstrated wider niche breadth than non-Lessepsian species, supporting the niche breadth hypothesis within the native region. No differences were found between Lessepsian and non-Lessepsian species in species abundance and successional stages. In the Mediterranean, nonindigenous species numerically dominated the settlement plates. This precluded robust comparisons of niche breadth between nonindigenous and indigenous species in the invaded region. In conclusion, using Red Sea ascidians as the pool of potential invaders, we found clear evidence supporting the niche breadth hypothesis in the native region. We suggest that such patterns may often be obscured when conducting trait based studies in the invaded regions alone. Our findings indicate that quantifying the niche breadth of species in their native regions will improve estimates of invasiveness potential. PMID- 29043039 TI - Recovery of plant communities after ecological restoration of forestry-drained peatlands. AB - Ecological restoration is expected to reverse the loss of biodiversity and ecosystem services. Due to the low number of well-replicated field studies, the extent to which restoration recovers plant communities, and the factors underlying possible shortcomings, are not well understood even in medium term. We compared the plant community composition of 38 sites comprising pristine, forestry-drained, and 5 or 10 years ago restored peatlands in southern Finland, with special interest in understanding spatial variation within studied sites, as well as the development of the numbers and the abundances of target species. Our results indicated a recovery of community composition 5-10 years after restoration, but there was significant heterogeneity in recovery. Plant communities farthest away from ditches were very similar to their pristine reference already 10 years after restoration. In contrast, communities in the ditches were as far from the target as the drained communities. The recovery appears to be characterized by a decline in the number and abundance of species typical to degraded conditions, and increase in the abundance of characteristic peatland species. However, we found no increase above the drained state in the number of characteristic peatland species. Our results suggest that there is a risk of drawing premature conclusions on the efficiency of ecological restoration with the current practice of short-term monitoring. Our results also illustrate fine-scale within-site spatial variability in the degradation and recovery of the plant communities that should be considered when evaluating the success of restoration. Overall, we find the heterogeneous outcome of restoration observed here promising. However, low recovery in the number of characteristic species demonstrates the importance of prioritizing restoration sites, and addressing the uncertainty of recovery when setting restoration targets. It appears that it is easier to eradicate unwanted species than regain characteristic species by restoration. PMID- 29043040 TI - Marine protected area restricts demographic connectivity: Dissimilarity in a marine environment can function as a biological barrier. AB - The establishment of marine protected areas (MPAs) can often lead to environmental differences between MPAs and fishing zones. To determine the effects on marine dispersal of environmental dissimilarity between an MPA and fishing zone, we examined the abundance and recruitment patterns of two anemonefishes (Amphiprion frenatus and A. perideraion) that inhabit sea anemones in different management zones (i.e., an MPA and two fishing zones) by performing a field survey and a genetic parentage analysis. We found lower levels of abundance per anemone in the MPA compared to the fishing zones for both species (n = 1,525 anemones, p = .032). The parentage analysis also showed that lower numbers of fishes were recruited from the fishing zones and outside of the study area into each anemone in the MPA than into each anemone in the fishing zones (n = 1,525 anemones, p < .017). However, the number of self-recruit production per female did not differ between the MPA and fishing zones (n = 384 females, p = .516). Because the ocean currents around the study site were unlikely to cause a lower settlement intensity of larvae in the MPA, the ocean circulation was not considered crucial to the observed abundance and recruitment patterns. Instead, stronger top-down control and/or a lower density of host anemones in the MPA were potential factors for such patterns. Our results highlight the importance of dissimilarity in a marine environment as a factor that affects connectivity. PMID- 29043041 TI - Riverine fish diversity varies according to geographical isolation and land use modification. AB - Understanding the environmental factors driving species-genetic diversity correlations (SGDCs) is critical for designing appropriate conservation and management strategies to protect biodiversity. Yet, few studies have explored the impact of changing land use patterns on SGDCs specifically in aquatic communities. This study examined patterns of genetic diversity in roach (Rutilus rutilus L.) together with fish species composition across 19 locations in a large river catchment, spanning a gradient in land use. Our findings show significant correlations between some, but not all, species and genetic diversity end points. For example, genetic and species differentiation showed a weak but significant linear relationship across the Thames catchment, but additional diversity measures such as allelic richness and fish population abundance did not. Further examination of patterns in species and genetic diversity indicated that land use intensification has a modest effect on fish diversity compared to the combined influence of geographical isolation and land use intensification. These results indicate that environmental changes in riparian habitats have the potential to amplify shifts in the composition of stream fish communities in poorly connected river stretches. Conservation and management strategies for fish populations should, therefore, focus on enhancing connectivity between river stretches and limit conversion of nearby land to arable or urban use to maintain current levels of biodiversity. PMID- 29043042 TI - feedr and animalnexus.ca: A paired R package and user-friendly Web application for transforming and visualizing animal movement data from static stations. AB - Radio frequency identification (RFID) provides a simple and inexpensive approach for examining the movements of tagged animals, which can provide information on species behavior and ecology, such as habitat/resource use and social interactions. In addition, tracking animal movements is appealing to naturalists, citizen scientists, and the general public and thus represents a tool for public engagement in science and science education. Although a useful tool, the large amount of data collected using RFID may quickly become overwhelming. Here, we present an R package (feedr) we have developed for loading, transforming, and visualizing time-stamped, georeferenced data, such as RFID data collected from static logger stations. Using our package, data can be transformed from raw RFID data to visits, presence (regular detections by a logger over time), movements between loggers, displacements, and activity patterns. In addition, we provide several conversion functions to allow users to format data for use in functions from other complementary R packages. Data can also be visualized through static or interactive maps or as animations over time. To increase accessibility, data can be transformed and visualized either through R directly, or through the companion site: http://animalnexus.ca, an online, user-friendly, R-based Shiny Web application. This system can be used by professional and citizen scientists alike to view and study animal movements. We have designed this package to be flexible and to be able to handle data collected from other stationary sources (e.g., hair traps, static very high frequency (VHF) telemetry loggers, observations of marked individuals in colonies or staging sites), and we hope this framework will become a meeting point for science, education, and community awareness of the movements of animals. We aim to inspire citizen engagement while simultaneously enabling robust scientific analysis. PMID- 29043043 TI - A pantropical analysis of the impacts of forest degradation and conversion on local temperature. AB - Temperature is a core component of a species' fundamental niche. At the fine scale over which most organisms experience climate (mm to ha), temperature depends upon the amount of radiation reaching the Earth's surface, which is principally governed by vegetation. Tropical regions have undergone widespread and extreme changes to vegetation, particularly through the degradation and conversion of rainforests. As most terrestrial biodiversity is in the tropics, and many of these species possess narrow thermal limits, it is important to identify local thermal impacts of rainforest degradation and conversion. We collected pantropical, site-level (<1 ha) temperature data from the literature to quantify impacts of land-use change on local temperatures, and to examine whether this relationship differed aboveground relative to belowground and between wet and dry seasons. We found that local temperature in our sample sites was higher than primary forest in all human-impacted land-use types (N = 113,894 daytime temperature measurements from 25 studies). Warming was pronounced following conversion of forest to agricultural land (minimum +1.6 degrees C, maximum +13.6 degrees C), but minimal and nonsignificant when compared to forest degradation (e.g., by selective logging; minimum +1 degrees C, maximum +1.1 degrees C). The effect was buffered belowground (minimum buffering 0 degrees C, maximum buffering 11.4 degrees C), whereas seasonality had minimal impact (maximum buffering 1.9 degrees C). We conclude that forest-dependent species that persist following conversion of rainforest have experienced substantial local warming. Deforestation pushes these species closer to their thermal limits, making it more likely that compounding effects of future perturbations, such as severe droughts and global warming, will exceed species' tolerances. By contrast, degraded forests and belowground habitats may provide important refugia for thermally restricted species in landscapes dominated by agricultural land. PMID- 29043044 TI - Natives and non-natives plants show different responses to elevation and disturbance on the tropical high Andes of Ecuador. AB - The aim was to assess patterns of plant diversity in response to elevation and disturbance in a tropical mountain. The study area was located in north-central portion of the Eastern Cordillera of the Ecuadorian Andes, on a road from 1,150 m a.s.l. (Osayacu) to 4,000 (Papallacta). Along a mountain road spanning a wide altitudinal gradient, at 20 elevations we sampled three plots: one at the roadside and two perpendicular to the roadside. The relationship between elevation and species richness was assessed using linear and quadratic regressions, the effect of disturbance on species richness was determined by ANCOVA and a t test with parameters obtained from quadratic equations. Similarity of species composition among the roadside and sites distant was evaluated with the Chao-Jaccard and classic Jaccard similarity indices, the distribution of non native species according to their origin were analyzed with linear and quadratic regression. The native species showed a linearly monotonic decrease with elevation, whereas non-natives showed a quadratic distribution. Disturbed areas had the greatest number of non-native species and lower native species richness, showing also a high floristic similarity; less disturbed areas showed the opposite. The non-native species of temperate origin were more numerous and showed unimodal elevational distribution, while species of tropical origin were few and decreased linearly with elevation. We conclude that in a tropical highland mountain range, native and non-native plant species respond differently to elevation: native species exhibit a monotonically linear decrease, and non native species show a unimodal trend. Disturbance positively affects non-native species showing higher richness and fewer species turnover. In addition, the non native species are located along of the elevational gradient in relation to their biogeographic origin. PMID- 29043045 TI - RADseq dataset with 90% missing data fully resolves recent radiation of Petalidium (Acanthaceae) in the ultra-arid deserts of Namibia. AB - Deserts, even those at tropical latitudes, often have strikingly low levels of plant diversity, particularly within genera. One remarkable exception to this pattern is the genus Petalidium (Acanthaceae), in which 37 of 40 named species occupy one of the driest environments on Earth, the Namib Desert of Namibia and neighboring Angola. To contribute to understanding this enigmatic diversity, we generated RADseq data for 47 accessions of Petalidium representing 22 species. We explored the impacts of 18 different combinations of assembly parameters in de novo assembly of the data across nine levels of missing data plus a best practice assembly using a reference Acanthaceae genome for a total of 171 sequence datasets assembled. RADseq data assembled at several thresholds of missing data, including 90% missing data, yielded phylogenetic hypotheses of Petalidium that were confidently and nearly fully resolved, which is notable given that divergence time analyses suggest a crown age for African species of 3.6-1.4 Ma. De novo assembly of our data yielded the most strongly supported and well resolved topologies; in contrast, reference-based assembly performed poorly, perhaps due in part to moderate phylogenetic divergence between the reference genome, Ruellia speciosa, and the ingroup. Overall, we found that Petalidium, despite the harshness of the environment in which species occur, shows a net diversification rate (0.8-2.1 species per my) on par with those of diverse genera in tropical, Mediterranean, and alpine environments. PMID- 29043046 TI - Among-tree variability and feedback effects result in different growth responses to climate change at the upper treeline in the Swiss Alps. AB - Upper treeline ecotones are important life form boundaries and particularly sensitive to a warming climate. Changes in growth conditions at these ecotones have wide-ranging implications for the provision of ecosystem services in densely populated mountain regions like the European Alps. We quantify climate effects on short- and long-term tree growth responses, focusing on among-tree variability and potential feedback effects. Although among-tree variability is thought to be substantial, it has not been considered systematically yet in studies on growth climate relationships. We compiled tree-ring data including almost 600 trees of major treeline species (Larix decidua, Picea abies, Pinus cembra, and Pinus mugo) from three climate regions of the Swiss Alps. We further acquired tree size distribution data using unmanned aerial vehicles. To account for among-tree variability, we employed information-theoretic model selections based on linear mixed-effects models (LMMs) with flexible choice of monthly temperature effects on growth. We isolated long-term trends in ring-width indices (RWI) in interaction with elevation. The LMMs revealed substantial amounts of previously unquantified among-tree variability, indicating different strategies of single trees regarding when and to what extent to invest assimilates into growth. Furthermore, the LMMs indicated strongly positive temperature effects on growth during short summer periods across all species, and significant contributions of fall (L. decidua) and current year's spring (L. decidua, P. abies). In the longer term, all species showed consistently positive RWI trends at highest elevations, but different patterns with decreasing elevation. L. decidua exhibited even negative RWI trends compared to the highest treeline sites, whereas P. abies, P. cembra, and P. mugo showed steeper or flatter trends with decreasing elevation. This does not only reflect effects of ameliorated climate conditions on tree growth over time, but also reveals first signs of long-suspected negative and positive feedback of climate change on stand dynamics at treeline. PMID- 29043047 TI - Relationships between aboveground biomass and plant cover at two spatial scales and their determinants in northern Tibetan grasslands. AB - The relationships between cover and AGB for the dominant and widely distributed alpine grasslands on the northern Tibetan Plateau is still not fully examined. The objectives of this study are to answer the following question: (1) How does aboveground biomass (AGB) of alpine grassland relate to plant cover at different spatial scales? (2) What are the major biotic and abiotic factors influencing on AGB-cover relationship? A community survey (species, cover, height, and abundance) was conducted within 1 m * 1 m plots in 70 sites along a precipitation gradient of 50-600 m. Ordinary linear regression was employed to examine AGB cover relationships of both community and species levels at regional scale of entire grassland and landscape scale of alpine meadow, alpine steppe, and desert steppe. Hierarchical partitioning was employed to estimate independent contributions of biotic and abiotic factors to AGB and cover at both scales. Partial correlation analyses were used to discriminate the effects of biotic and abiotic factors on AGB-cover relationships at two spatial scales. AGB and community cover both exponentially increased along the precipitation gradient. At community level, AGB was positively and linearly correlated with cover for all grasslands except for alpine meadow. AGB was also linearly correlated with cover of species level at both regional and landscape scales. Contributions of biotic and abiotic factors to the relationship between AGB and cover significantly depended on spatial scales. Cover of cushions, forbs, legumes and sedges, species richness, MAP, and soil bulk density were important factors that influenced the AGB-cover relationship at either regional or landscape scale. This study indicated generally positive and linear relationships between AGB and cover are at both regional and landscape scales. Spatial scale may affect ranges of cover and modify the contribution of cover to AGB. AGB-cover relationships were influenced mainly by species composition of different functional groups. Therefore, in deriving AGB patterns at different spatial scales, community composition should be considered to obtain acceptable accuracy. PMID- 29043048 TI - Do temperate tree species diversity and identity influence soil microbial community function and composition? AB - Studies of biodiversity-ecosystem function in treed ecosystems have generally focused on aboveground functions. This study investigates intertrophic links between tree diversity and soil microbial community function and composition. We examined how microbial communities in surface mineral soil responded to experimental gradients of tree species richness (SR), functional diversity (FD), community-weighted mean trait value (CWM), and tree identity. The site was a 4 year-old common garden experiment near Montreal, Canada, consisting of deciduous and evergreen tree species mixtures. Microbial community composition, community level physiological profiles, and respiration were evaluated using phospholipid fatty acid (PLFA) analysis and the MicroRespTM system, respectively. The relationship between tree species richness and glucose-induced respiration (GIR), basal respiration (BR), metabolic quotient (qCO 2) followed a positive but saturating shape. Microbial communities associated with species mixtures were more active (basal respiration [BR]), with higher biomass (glucose-induced respiration [GIR]), and used a greater number of carbon sources than monocultures. Communities associated with deciduous tree species used a greater number of carbon sources than those associated with evergreen species, suggesting a greater soil carbon storage capacity. There were no differences in microbial composition (PLFA) between monocultures and SR mixtures. The FD and the CWM of several functional traits affected both BR and GIR. In general, the CWM of traits had stronger effects than did FD, suggesting that certain traits of dominant species have more effect on ecosystem processes than does FD. Both the functions of GIR and BR were positively related to aboveground tree community productivity. Both tree diversity (SR) and identity (species and functional identity-leaf habit) affected soil microbial community respiration, biomass, and composition. For the first time, we identified functional traits related to life-history strategy, as well as root traits that influence another trophic level, soil microbial community function, via effects on BR and GIR. PMID- 29043049 TI - Polyphagy and diversification in tussock moths: Support for the oscillation hypothesis from extreme generalists. AB - Theory on plasticity driving speciation, as applied to insect-plant interactions (the oscillation hypothesis), predicts more species in clades with higher diversity of host use, all else being equal. Previous support comes mainly from specialized herbivores such as butterflies, and plasticity theory suggests that there may be an upper host range limit where host diversity no longer promotes diversification. The tussock moths (Erebidae: Lymantriinae) are known for extreme levels of polyphagy. We demonstrate that this system is also very different from butterflies in terms of phylogenetic signal for polyphagy and for use of specific host orders. Yet we found support for the generality of the oscillation hypothesis, in that clades with higher diversity of host use were found to contain more species. These clades also consistently contained the most polyphagous single species. Comparing host use in Lymantriinae with related taxa shows that the taxon indeed stands out in terms of the frequency of polyphagous species. Comparative evidence suggests that this is most probably due to its nonfeeding adults, with polyphagy being part of a resulting life history syndrome. Our results indicate that even high levels of plasticity can drive diversification, at least when the levels oscillate over time. PMID- 29043050 TI - Prediction of biodiversity hotspots in the Anthropocene: The case of veteran oaks. AB - Over the past centuries, humans have transformed large parts of the biosphere, and there is a growing need to understand and predict the distribution of biodiversity hotspots influenced by the presence of humans. Our basic hypothesis is that human influence in the Anthropocene is ubiquitous, and we predict that biodiversity hot spot modeling can be improved by addressing three challenges raised by the increasing ecological influence of humans: (i) anthropogenically modified responses to individual ecological factors, (ii) fundamentally different processes and predictors in landscape types shaped by different land use histories and (iii) a multitude and complexity of natural and anthropogenic processes that may require many predictors and even multiple models in different landscape types. We modeled the occurrence of veteran oaks in Norway, and found, in accordance with our basic hypothesis and predictions, that humans influence the distribution of veteran oaks throughout its range, but in different ways in forests and open landscapes. In forests, geographical and topographic variables related to the oak niche are still important, but the occurrence of veteran oaks is shifted toward steeper slopes, where logging is difficult. In open landscapes, land cover variables are more important, and veteran oaks are more common toward the north than expected from the fundamental oak niche. In both landscape types, multiple predictor variables representing ecological and human-influenced processes were needed to build a good model, and several models performed almost equally well. Models accounting for the different anthropogenic influences on landscape structure and processes consistently performed better than models based exclusively on natural biogeographical and ecological predictors. Thus, our results for veteran oaks clearly illustrate the challenges to distribution modeling raised by the ubiquitous influence of humans, even in a moderately populated region, but also show that predictions can be improved by explicitly addressing these anthropogenic complexities. PMID- 29043051 TI - Effect of climate change on bud phenology of young aspen plants (Populus tremula. L). AB - Boreal tree species are excellent tools for studying tolerance to climate change. Bud phenology is a trait, which is highly sensitive to environmental fluctuations and thus useful for climate change investigations. However, experimental studies of bud phenology under simulated climate change outdoors are deficient. We conducted a multifactorial field experiment with single (T, UVA, UVB) and combined treatments (UVA+T, UVB+T) of elevated temperature (T, +2 degrees C) and ultraviolet-B radiation (+30% UVB) in order to examine their impact on both male and female genotypes of aspen (Populus tremula L.). This study focuses on the effect of the treatments in years 2 and 3 after planting (2013, 2014) and follows how bud phenology is adapting in year 4 (2015), when the treatments were discontinued. Moreover, the effect of bud removal was recorded. We found that elevated temperature played a key role in delaying bud set and forcing bud break in intact individuals, as well as slightly delaying bud break in bud-removed individuals. UVB delayed the bud break in bud-removed males. In addition, both UVA and UVB interacted with temperature in year 3 and even in year 4, when the treatments were off, but only in male individuals. Axillary bud removal forced both bud break and bud set under combined treatments (UVA+T, UVB+T) and delayed both under individual treatments (T, UVB). In conclusion, male aspens were more responsive to the treatments than females and that effect of elevated temperature and UV radiation on bud set and bud break of aspen is not disappearing over 4 year study period. PMID- 29043052 TI - Evolution of a mating preference for a dual-utility trait used in intrasexual competition in genetically monogamous populations. AB - The selection pressures by which mating preferences for ornamental traits can evolve in genetically monogamous mating systems remain understudied. Empirical evidence from several taxa supports the prevalence of dual-utility traits, defined as traits used both as armaments in intersexual selection and ornaments in intrasexual selection, as well as the importance of intrasexual resource competition for the evolution of female ornamentation. Here, we study whether mating preferences for traits used in intrasexual resource competition can evolve under genetic monogamy. We find that a mating preference for a competitive trait can evolve and affect the evolution of the trait. The preference is more likely to persist when the fecundity benefit for mates of successful competitors is large and the aversion to unornamented potential mates is strong. The preference can persist for long periods or potentially permanently even when it incurs slight costs. Our results suggest that, when females use ornaments as signals in intrasexual resource competition, males can evolve mating preferences for those ornaments, illuminating both the evolution of female ornamentation and the evolution of male preferences for female ornaments in monogamous species. PMID- 29043053 TI - Ecological niche comparison and molecular phylogeny segregate the invasive moss species Campylopus introflexus (Leucobryaceae, Bryophyta) from its closest relatives. AB - The delimitation of the invasive moss species Campylopus introflexus from its closest relative, Campylopus pilifer, has been long debated based on morphology. Previous molecular phylogenetic reconstructions based on the nuclear ribosomal internal transcribed spacers (ITS) 1 and 2 showed that C. pilifer is split into an Old World and a New World lineage, but remained partly inconclusive concerning the relationships between these two clades and C. introflexus. Analyses of an extended ITS dataset displayed statistically supported incongruence between ITS1 and ITS2. ITS1 separates the New World clade of C. pilifer from a clade comprising C. introflexus and the Old World C. pilifer. Ancestral state reconstruction showed that this topology is morphologically supported by differences in the height of the dorsal costal lamellae in leaf cross-section (despite some overlap). ITS2, in contrast, supports the current morphological species concept, i.e., separating C. introflexus from C. pilifer, which is morphologically supported by the orientation of the hyaline hair point at leaf apex as well as costal lamellae height. Re-analysis of published and newly generated plastid atpB-rbcL spacer sequences supported the three ITS lineages. Ecological niche modeling proved a useful approach and showed that all three molecular lineages occupy distinct environmental spaces that are similar, but undoubtedly not equivalent. In line with the ITS1 topology, the C. pilifer lineage from the New World occupies the most distinct environmental niche, whereas the niches of Old World C. pilifer and C. introflexus are very similar. Taking the inferences from ecological niche comparisons, phylogenetics, and morphology together, we conclude that all three molecular lineages represent different taxa that should be recognized as independent species, viz. C. introflexus, C. pilifer (Old World clade), and the reinstated C. lamellatus Mont. (New World clade). PMID- 29043054 TI - Woody structure facilitates invasion of woody plants by providing perches for birds. AB - Woody encroachment threatens prairie ecosystems globally, and thus understanding the mechanisms that facilitate woody encroachment is of critical importance. Coastal tallgrass prairies along the Gulf Coast of the US are currently threatened by the spread of several species of woody plants. We studied a coastal tallgrass prairie in Texas, USA, to determine if existing woody structure increased the supply of seeds from woody plants via dispersal by birds. Specifically, we determined if (i) more seedlings of an invasive tree (Tridacia sebifera) are present surrounding a native woody plant (Myrica cerifera); (ii) wooden perches increase the quantity of seeds dispersed to a grassland; and (iii) perches alter the composition of the seed rain seasonally in prairie habitats with differing amounts of native and invasive woody vegetation, both underneath and away from artificial wooden perches. More T. sebifera seedlings were found within M. cerifera patches than in graminoid-dominated areas. Although perches did not affect the total number of seeds, perches changed the composition of seed rain to be less dominated by grasses and forbs. Specifically, 20-30 times as many seeds of two invasive species of woody plants were found underneath perches independent of background vegetation, especially during months when seed rain was highest. These results suggest that existing woody structure in a grassland can promote further woody encroachment by enhancing seed dispersal by birds. This finding argues for management to reduce woody plant abundance before exotic plants set seeds and argues against the use of artificial perches as a restoration technique in grasslands threatened by woody species. PMID- 29043055 TI - Seasonal dynamics in mosquito abundance and temperature do not influence avian malaria prevalence in the Himalayan foothills. AB - We examined seasonal prevalence in avian haemosporidians (Plasmodium and Haemoproteus) in migrant and resident birds in western Himalaya, India. We investigated how infection with haemosporidians in avian hosts is associated with temporal changes in temperature and mosquito abundance along with host abundance and life-history traits (body mass). Using molecular methods for parasite detection and sequencing partial cytochrome b gene, 12 Plasmodium and 27 Haemoproteus lineages were isolated. Our 1-year study from December 2008 to December 2009 in tropical Himalayan foothills revealed a lack of seasonal variation in Plasmodium spp. prevalence in birds despite a strong correlation between mosquito abundance and temperature. The probability of infection with Plasmodium decreased with increase in temperature. Total parasite prevalence and specifically Plasmodium prevalence showed an increase with average avian body mass. In addition, total prevalence exhibited a U-shaped relationship with avian host abundance. There was no difference in prevalence of Plasmodium spp. or Haemoproteus spp. across altitudes; parasite prevalence in high-altitude locations was mainly driven by the seasonal migrants. One Haemoproteus lineage showed cross-species infections between migrant and resident birds. This is the first molecular study in the tropical Himalayan bird community that emphasizes the importance of studying seasonal variation in parasite prevalence. Our study provides a basis for further evolutionary study on the epidemiology of avian malaria and spread of disease across Himalayan bird communities, which may not have been exposed to vectors and parasites throughout the year, with consequential implications to the risk of infection to naive resident birds in high altitude. PMID- 29043056 TI - Genotype by sequencing identifies natural selection as a driver of intraspecific divergence in Atlantic populations of the high dispersal marine invertebrate, Macoma petalum. AB - Mitochondrial DNA analyses indicate that the Bay of Fundy population of the intertidal tellinid bivalve Macoma petalum is genetically divergent from coastal populations in the Gulf of Maine and Nova Scotia. To further examine the evolutionary forces driving this genetic break, we performed double digest genotype by sequencing (GBS) to survey the nuclear genome for evidence of both neutral and selective processes shaping this pattern. The resulting reads were mapped to a partial transcriptome of its sister species, M. balthica, to identify single nucleotide polymorphisms (SNPs) in protein-coding genes. Population assignment tests, principle components analyses, analysis of molecular variance, and outlier tests all support differentiation between the Bay of Fundy genotype and the genotypes of the Gulf of Maine, Gulf of St. Lawrence, and Nova Scotia. Although both neutral and non-neutral patterns of genetic subdivision were significant, genetic structure among the regions was nearly 20 times higher for loci putatively under selection, suggesting a strong role for natural selection as a driver of genetic diversity in this species. Genetic differences were the greatest between the Bay of Fundy and all other population samples, and some outlier proteins were involved in immunity-related processes. Our results suggest that in combination with limited gene flow across the mouth of the Bay of Fundy, local adaptation is an important driver of intraspecific genetic variation in this marine species with high dispersal potential. PMID- 29043057 TI - Flower resource and land management drives hoverfly communities and bee abundance in seminatural and agricultural grasslands. AB - Pollination is a key ecosystem service, and appropriate management, particularly in agricultural systems, is essential to maintain a diversity of pollinator guilds. However, management recommendations frequently focus on maintaining plant communities, with the assumption that associated invertebrate populations will be sustained. We tested whether plant community, flower resources, and soil moisture would influence hoverfly (Syrphidae) abundance and species richness in floristically-rich seminatural and floristically impoverished agricultural grassland communities in Wales (U.K.) and compared these to two Hymenoptera genera, Bombus, and Lasioglossum. Interactions between environmental variables were tested using generalized linear modeling, and hoverfly community composition examined using canonical correspondence analysis. There was no difference in hoverfly abundance, species richness, or bee abundance, between grassland types. There was a positive association between hoverfly abundance, species richness, and flower abundance in unimproved grasslands. However, this was not evident in agriculturally improved grassland, possibly reflecting intrinsically low flower resource in these habitats, or the presence of plant species with low or relatively inaccessible nectar resources. There was no association between soil moisture content and hoverfly abundance or species richness. Hoverfly community composition was influenced by agricultural improvement and the amount of flower resource. Hoverfly species with semiaquatic larvae were associated with both seminatural and agricultural wet grasslands, possibly because of localized larval habitat. Despite the absence of differences in hoverfly abundance and species richness, distinct hoverfly communities are associated with marshy grasslands, agriculturally improved marshy grasslands, and unimproved dry grasslands, but not with improved dry grasslands. Grassland plant community cannot be used as a proxy for pollinator community. Management of grasslands should aim to maximize the pollinator feeding resource, as well as maintain plant communities. Retaining waterlogged ground may enhance the number of hoverflies with semiaquatic larvae. PMID- 29043058 TI - Closely related octopus species show different spatial genetic structures in response to the Antarctic seascape. AB - Determining whether comparable processes drive genetic divergence among marine species is relevant to molecular ecologists and managers alike. Sympatric species with similar life histories might be expected to show comparable patterns of genetic differentiation and a consistent influence of environmental factors in shaping divergence. We used microsatellite loci to quantify genetic differentiation across the Scotia Arc in three species of closely related benthic octopods, Pareledone turqueti, P. charcoti, and Adelieledone polymorpha. The relative importance of environmental factors (latitude, longitude, depth, and temperature) in shaping genetic structure was investigated when significant spatial genetic structure was uncovered. Isolated populations of P. turqueti and A. polymorpha at these species' range margins were genetically different to samples close to mainland Antarctica; however, these species showed different genetic structures at a regional scale. Samples of P. turqueti from the Antarctic Peninsula, Elephant Island, and Signy Island were genetically different, and this divergence was associated primarily with sample collection depth. By contrast, weak or nonsignificant spatial genetic structure was evident across the Antarctic Peninsula, Elephant Island, and Signy Island region for A. polymorpha, and slight associations between population divergence and temperature or depth (and/or longitude) were detected. Pareledone charcoti has a limited geographic range, but exhibited no genetic differentiation between samples from a small region of the Scotia Arc (Elephant Island and the Antarctic Peninsula). Thus, closely related species with similar life history strategies can display contrasting patterns of genetic differentiation depending on spatial scale; moreover, depth may drive genetic divergence in Southern Ocean benthos. PMID- 29043059 TI - Thermal plasticity in postembryonic life history traits of a widely distributed Collembola: Effects of macroclimate and microhabitat on genotypic differences. AB - Life history traits in many ectotherms show complex patterns of variation among conspecific populations sampled along wide latitudinal or climatic gradients. However, few studies have assessed whether these patterns can be explained better by thermal reaction norms of multiple life history traits, covering major aspects of the life cycle. In this study, we compared five populations of a Holarctic, numerically dominant soil microarthropod species, Folsomia quadrioculata, sampled from a wide latitudinal gradient (56-81 degrees N), for growth, development, fecundity, and survival across four temperatures (10, 15, 20, and 25 degrees C) in common garden experiments. We evaluated the extent to which macroclimate could explain differences in thermal adaptation and life history strategies among populations. The common garden experiments revealed large genotypic differences among populations in all the traits, which were little explained by latitude and macroclimate. In addition, the life history strategies (traits combined) hardly revealed any systematic difference related to latitude and macroclimate. The overall performance of the northernmost population from the most stochastic microclimate and the southernmost population, which remains active throughout the year, was least sensitive to the temperature treatments. In contrast, performance of the population from the most predictable microclimate peaked within a narrow temperature range (around 15 degrees C). Our findings revealed limited support for macroclimate-based predictions, and indicated that local soil habitat conditions related to predictability and seasonality might have considerable influence on the evolution of life history strategies of F. quadrioculata. This study highlights the need to combine knowledge on microhabitat characteristics, and demography, with findings from common garden experiments, for identifying the key drivers of life history evolution across large spatial scales, and wide climate gradients. We believe that similar approaches may substantially improve the understanding of adaptation in many terrestrial ectotherms with low dispersal ability. PMID- 29043061 TI - Refining the cheatgrass-fire cycle in the Great Basin: Precipitation timing and fine fuel composition predict wildfire trends. AB - Larger, more frequent wildfires in arid and semi-arid ecosystems have been associated with invasion by non-native annual grasses, yet a complete understanding of fine fuel development and subsequent wildfire trends is lacking. We investigated the complex relationships among weather, fine fuels, and fire in the Great Basin, USA. We first modeled the annual and time-lagged effects of precipitation and temperature on herbaceous vegetation cover and litter accumulation over a 26-year period in the northern Great Basin. We then modeled how these fine fuels and weather patterns influence subsequent wildfires. We found that cheatgrass cover increased in years with higher precipitation and especially when one of the previous 3 years also was particularly wet. Cover of non-native forbs and native herbs also increased in wet years, but only after several dry years. The area burned by wildfire in a given year was mostly associated with native herb and non-native forb cover, whereas cheatgrass mainly influenced area burned in the form of litter derived from previous years' growth. Consequently, multiyear weather patterns, including precipitation in the previous 1-3 years, was a strong predictor of wildfire in a given year because of the time needed to develop these fine fuel loads. The strong relationship between precipitation and wildfire allowed us to expand our inference to 10,162 wildfires across the entire Great Basin over a 35-year period from 1980 to 2014. Our results suggest that the region's precipitation pattern of consecutive wet years followed by consecutive dry years results in a cycle of fuel accumulation followed by weather conditions that increase the probability of wildfire events in the year when the cycle transitions from wet to dry. These patterns varied regionally but were strong enough to allow us to model annual wildfire risk across the Great Basin based on precipitation alone. PMID- 29043060 TI - Origins of the Greenland shark (Somniosus microcephalus): Impacts of ice-olation and introgression. AB - Herein, we use genetic data from 277 sleeper sharks to perform coalescent-based modeling to test the hypothesis of early Quaternary emergence of the Greenland shark (Somniosus microcephalus) from ancestral sleeper sharks in the Canadian Arctic-Subarctic region. Our results show that morphologically cryptic somniosids S. microcephalus and Somniosus pacificus can be genetically distinguished using combined mitochondrial and nuclear DNA markers. Our data confirm the presence of genetically admixed individuals in the Canadian Arctic and sub-Arctic, and temperate Eastern Atlantic regions, suggesting introgressive hybridization upon secondary contact following the initial species divergence. Conservative substitution rates fitted to an Isolation with Migration (IM) model indicate a likely species divergence time of 2.34 Ma, using the mitochondrial sequence DNA, which in conjunction with the geographic distribution of admixtures and Pacific signatures likely indicates speciation associated with processes other than the closing of the Isthmus of Panama. This time span coincides with further planetary cooling in the early Quaternary period followed by the onset of oscillating glacial-interglacial cycles. We propose that the initial S. microcephalus-S. pacificus split, and subsequent hybridization events, were likely associated with the onset of Pleistocene glacial oscillations, whereby fluctuating sea levels constrained connectivity among Arctic oceanic basins, Arctic marginal seas, and the North Atlantic Ocean. Our data demonstrates support for the evolutionary consequences of oscillatory vicariance via transient oceanic isolation with subsequent secondary contact associated with fluctuating sea levels throughout the Quaternary period-which may serve as a model for the origins of Arctic marine fauna on a broad taxonomic scale. PMID- 29043063 TI - A survey of working conditions within biomedical research in the United Kingdom. AB - Background: Many recent articles have presented a bleak view of career prospects in biomedical research in the US. Too many PhDs and postdocs are trained for too few research positions, creating a "holding-tank" of experienced senior postdocs who are unable to get a permanent position. Coupled with relatively low salaries and the high levels of pressure to publish in top-tier academic journals, this has created a toxic environment that is perhaps responsible for a recently observed decline in biomedical postdocs in the US, the so-called "postdocalypse". Methods: In order to address the gulf of information relating to working habits and attitudes of UK-based biomedical researchers, a survey was conducted and analysed to examine discrete profiles for three major career stages: the PhD, the postdoc and the principal investigator. Results: Overall, the data presented here echoes trends observed in the US: Scientists in the UK feel disillusioned with academic research, due to the low chance of getting a permanent position and the long hours required at the bench. Also like the US, large numbers of researchers at each distinct career stage are considering leaving biomedical research altogether. Conclusions: There are several systemic flaws in the academic scientific research machine - for example to continual overproduction of PhDs and the lack of stability in the early-mid stages of a research career - that are slowly being addressed in countries such as the US and Germany. This data suggests that similar flaws also exist in the UK, with a large proportion of respondents concerned about their future in research. To avoid lasting damage to the biomedical research agenda in the UK, addressing such concerns should be a major priority. PMID- 29043062 TI - The future of metabolomics in ELIXIR. AB - Metabolomics, the youngest of the major omics technologies, is supported by an active community of researchers and infrastructure developers across Europe. To coordinate and focus efforts around infrastructure building for metabolomics within Europe, a workshop on the "Future of metabolomics in ELIXIR" was organised at Frankfurt Airport in Germany. This one-day strategic workshop involved representatives of ELIXIR Nodes, members of the PhenoMeNal consortium developing an e-infrastructure that supports workflow-based metabolomics analysis pipelines, and experts from the international metabolomics community. The workshop established metabolite identification as the critical area, where a maximal impact of computational metabolomics and data management on other fields could be achieved. In particular, the existing four ELIXIR Use Cases, where the metabolomics community - both industry and academia - would benefit most, and which could be exhaustively mapped onto the current five ELIXIR Platforms were discussed. This opinion article is a call for support for a new ELIXIR metabolomics Use Case, which aligns with and complements the existing and planned ELIXIR Platforms and Use Cases. PMID- 29034075 TI - Structural brain abnormalities in 12 persons with aniridia. AB - Background: Aniridia is a disorder predominately caused by heterozygous loss-of function mutations of the PAX6 gene, which is a transcriptional regulator necessary for normal eye and brain development. The ocular abnormalities of aniridia have been well characterized, but mounting evidence has implicated brain related phenotypes as a prominent feature of this disorder as well. Investigations using neuroimaging in aniridia patients have shown reductions in discrete brain structures and changes in global grey and white matter. However, limited sample sizes and substantive heterogeneity of structural phenotypes in the brain remain a challenge. Methods: Here, we examined brain structure in a new population sample in an effort to add to the collective understanding of anatomical abnormalities in aniridia. The current study used 3T magnetic resonance imaging to acquire high-resolution structural data in 12 persons with aniridia and 12 healthy demographically matched comparison subjects. Results: We examined five major structures: the anterior commissure, the posterior commissure, the pineal gland, the corpus callosum, and the optic chiasm. The most consistent reductions were found in the anterior commissure and the pineal gland; however, abnormalities in all of the other structures examined were present in at least one individual. Conclusions: Our results indicate that the anatomical abnormalities in aniridia are variable and largely individual specific. These findings suggest that future studies investigate this heterogeneity further, and that normal population variation should be considered when evaluating structural abnormalities. PMID- 29043065 TI - CNS cell-type localization and LPS response of TLR signaling pathways. AB - Background: Innate immune signaling in the brain has emerged as a contributor to many central nervous system (CNS) pathologies, including mood disorders, neurodegenerative disorders, neurodevelopmental disorders, and addiction. Toll like receptors (TLRs), a key component of the innate immune response, are particularly implicated in neuroimmune dysfunction. However, most of our understanding about TLR signaling comes from the peripheral immune response, and it is becoming clear that the CNS immune response is unique. One controversial aspect of neuroimmune signaling is which CNS cell types are involved. While microglia are the CNS cell-type derived from a myeloid lineage, studies suggest that other glial cell types and even neurons express TLRs, although this idea is controversial. Furthermore, recent work suggests a discrepancy between RNA and protein expression within the CNS. Methods: To elucidate the CNS cell-type localization of TLRs and their downstream signaling molecules, we isolated microglia and astrocytes from the brain of adult mice treated with saline or the TLR4 ligand lipopolysaccharide (LPS). Glial mRNA and protein expression was compared to a cellular-admixture to determine cell-type enrichment. Results: Enrichment analysis revealed that most of the TLR pathway genes are localized in microglia and changed in microglia following immune challenge. However, expression of Tlr3 was enriched in astrocytes, where it increased in response to LPS. Furthermore, attempts to determine protein cell-type localization revealed that many antibodies are non-specific and that antibody differences are contributing to conflicting localization results. Conclusions: Together these results highlight the cell types that should be looked at when studying TLR signaling gene expression and suggest that non-antibody approaches need to be used to accurately evaluate protein expression. PMID- 29034080 TI - Professional medical writing support and the reporting quality of randomized controlled trial abstracts among high-impact general medical journals. AB - Background: In articles reporting randomized controlled trials, professional medical writing support is associated with increased adherence to Consolidated Standards of Reporting Trials (CONSORT). We set out to determine whether professional medical writing support was also associated with improved adherence to CONSORT for Abstracts. Methods: Using data from a previously published cross sectional study of 463 articles reporting randomized controlled trials published between 2011 and 2014 in five top medical journals, we determined the association between professional medical writing support and CONSORT for Abstracts items using a Wilcoxon rank-sum test. Results: The mean proportion of adherence to CONSORT for Abstracts items reported was similar with and without professional medical writing support (64.3% vs 66.5%, respectively; p=0.30). Professional medical writing support was associated with lower adherence to reporting study setting (relative risk [RR]; 0.40; 95% confidence interval [CI], 0.23-0.70), and higher adherence to disclosing harms/side effects (RR 2.04; 95% CI, 1.37-3.03) and funding source (RR 1.75; 95% CI, 1.18-2.60). Conclusions: Although professional medical writing support was not associated with increased overall adherence to CONSORT for Abstracts, important aspects were improved with professional medical writing support, including reporting of adverse events and funding source. This study identifies areas to consider for improvement. PMID- 29043067 TI - recount workflow: Accessing over 70,000 human RNA-seq samples with Bioconductor. AB - The recount2 resource is composed of over 70,000 uniformly processed human RNA seq samples spanning TCGA and SRA, including GTEx. The processed data can be accessed via the recount2 website and the recount Bioconductor package. This workflow explains in detail how to use the recount package and how to integrate it with other Bioconductor packages for several analyses that can be carried out with the recount2 resource. In particular, we describe how the coverage count matrices were computed in recount2 as well as different ways of obtaining public metadata, which can facilitate downstream analyses. Step-by-step directions show how to do a gene-level differential expression analysis, visualize base-level genome coverage data, and perform an analyses at multiple feature levels. This workflow thus provides further information to understand the data in recount2 and a compendium of R code to use the data. PMID- 29043069 TI - Recent advances in the understanding and management of Klebsiella pneumoniae. AB - Klebsiella pneumoniae, a gram-negative bacillus of the Enterobacteriaceae family, is a component of the normal human microbiota and a common cause of community- and healthcare-associated infections. The increasing prevalence of antimicrobial resistance among K. pneumoniae isolates, particularly among those causing healthcare-associated infections, is an important public health concern. Infections caused by these multidrug-resistant organisms, for which safe and effective antimicrobial therapy options are extremely limited, are associated with poor outcomes for patients. The optimal approach to the treatment of infections caused by these multidrug-resistant strains remains undefined, and treatment decisions for an individual patient should be based on a number of organism- (for example, minimum inhibitory concentration) and patient-specific (for example, site of infection) factors. The emergence of pandrug-resistant strains of K. pneumoniae highlights the critical need for consistent implementation of effective strategies for prevention of transmission and infection and for the development of new antimicrobials with activity against these emerging pathogens. PMID- 29043068 TI - Meta-fibrosis links positive energy balance and mitochondrial metabolism to insulin resistance. AB - Obesity and insulin resistance often emerge from positive energy balance and generally are linked to low-grade inflammation. This low-grade inflammation has been called "meta-inflammation" because it is a consequence of the metabolic dysregulation that can accompany overnutrition. One means by which meta inflammation is linked to insulin resistance is extracellular matrix expansion secondary to meta-inflammation, which we define here as "meta-fibrosis". The significance of meta-fibrosis is that it reflects a situation in which the extracellular matrix functions as a multi-level integrator of local (for example, mitochondrial reactive oxygen species production) and systemic (for example, inflammation) inputs that couple to cellular processes creating insulin resistance. While adipose tissue extracellular matrix remodeling has received considerable attention, it is becoming increasingly apparent that liver and skeletal muscle extracellular matrix remodeling also contributes to insulin resistance. In this review, we address recent advances in our understanding of energy balance, mitochondrial energetics, meta-inflammation, and meta-fibrosis in the development of insulin resistance. PMID- 29043070 TI - Bacterial vaginosis. AB - Bacterial vaginosis is the most prevalent cause of abnormal vaginal discharge in women of childbearing age. It can have a major impact on quality of life and psychological wellbeing if frequently recurrent and strongly symptomatic. The use of molecular techniques to study the vaginal microbiome is increasing our understanding of the dynamic changes in flora that occur in health and disease. It might soon be possible to separate Gardnerella into different pathogenic and non-pathogenic species. Many groups are studying compounds that can disrupt the biofilm which is dominated by Gardnerella and Atopobium vaginae. Several studies in the last decade support the concept of bacterial vaginosis as a sexually transmitted infection. PMID- 29043072 TI - Expanding the chemical information science gateway. AB - Broadly defined, chemical information science (CIS) covers chemical structure and data analysis including biological activity data as well as processing, organization, and retrieval of any form of chemical information. The CIS Gateway (CISG) of F1000Research was created to communicate research involving the entire spectrum of chemical information, including chem(o)informatics. CISG provides a forum for high-quality publications and a meaningful alternative to conventional journals. This gateway is supported by leading experts in the field recognizing the need for open science and a flexible publication platform enabling off-the beaten path contributions. This editorial aims to further rationalize the scope of CISG, position it within its scientific environment, and open it up to a wider audience. Chemical information science is an interdisciplinary field with high potential to interface with experimental work. PMID- 29043071 TI - Recent advances in the management of peptic ulcer bleeding. AB - Acute upper gastrointestinal haemorrhage due to peptic ulcer bleeding remains an important cause of emergency presentation and hospital admission. Despite advances in many aspects of management, peptic ulcer bleeding is still associated with significant morbidity, mortality, and healthcare costs. Comprehensive international guidelines have been published, but advances as well as controversies continue to evolve. Important recent advances include the evidence supporting a more restrictive transfusion strategy aiming for a target haemoglobin of 70-90 g/l. Comparative studies have confirmed that the Glasgow Blatchford score remains the most useful score for predicting the need for intervention as well as for identifying the lowest-risk patients suitable for outpatient management. New scores, including the AIMS65 and Progetto Nazionale Emorragia Digestiva score, may be more accurate in predicting mortality. Pre endoscopy erythromycin appears to improve outcomes and is probably underused. High-dose oral proton pump inhibition (PPI) for 11 days after PPI infusion is advantageous in those with a Rockall score of 6 or more. Oral is as effective as parenteral iron at restoring haemoglobin levels after a peptic ulcer bleed and both are superior to placebo in this respect. Within endoscopic techniques, haemostatic powders and over-the-scope clips can be used when other methods have failed. A disposable Doppler probe appears to provide more accurate determination of both rebleeding risk and the success of endoscopic therapy than purely visual guidance. Non- Helicobacter pylori, non-aspirin/non-steroidal anti-inflammatory drug ulcers contribute an increasing percentage of bleeding peptic ulcers and are associated with a poor prognosis and high rebleeding rate. The optimal management of these ulcers remains to be determined. PMID- 29043073 TI - Predator and prey functional traits: understanding the adaptive machinery driving predator-prey interactions. AB - Predator-prey relationships are a central component of community dynamics. Classic approaches have tried to understand and predict these relationships in terms of consumptive interactions between predator and prey species, but characterizing the interaction this way is insufficient to predict the complexity and context dependency inherent in predator-prey relationships. Recent approaches have begun to explore predator-prey relationships in terms of an evolutionary ecological game in which predator and prey adapt to each other through reciprocal interactions involving context-dependent expression of functional traits that influence their biomechanics. Functional traits are defined as any morphological, behavioral, or physiological trait of an organism associated with a biotic interaction. Such traits include predator and prey body size, predator and prey personality, predator hunting mode, prey mobility, prey anti-predator behavior, and prey physiological stress. Here, I discuss recent advances in this functional trait approach. Evidence shows that the nature and strength of many interactions are dependent upon the relative magnitude of predator and prey functional traits. Moreover, trait responses can be triggered by non-consumptive predator-prey interactions elicited by responses of prey to risk of predation. These interactions in turn can have dynamic feedbacks that can change the context of the predator-prey interaction, causing predator and prey to adapt their traits through phenotypically plastic or rapid evolutionary responses-and the nature of their interaction. Research shows that examining predator-prey interactions through the lens of an adaptive evolutionary-ecological game offers a foundation to explain variety in the nature and strength of predator-prey interactions observed in different ecological contexts. PMID- 29043074 TI - Recent advances in eosinophilic esophagitis. AB - Eosinophilic esophagitis is a chronic, antigen-driven, eosinophil-predominant inflammatory disease of the esophagus and affects both children and adults. Cutting-edge technologies, such as genome-wide association studies, have advanced our understanding of the disease pathogenesis at a remarkable rate. Recent insights from genetic and mechanistic studies have concluded that a complex interplay between genetic and environmental risk factors, allergic sensitization, and esophageal-specific pathways leads to disease pathogenesis. Importantly, recent epidemiologic studies have found that the incidence and prevalence of eosinophilic esophagitis continue to rise. New guidelines have advocated the elimination of the term proton pump inhibitor (PPI)-responsive esophageal eosinophilia and have recommended using PPIs as a first-line treatment modality. Systemic reviews and meta-analyses confirm the efficacy of PPIs, topical corticosteroids, and empiric food elimination diets. Unmet needs include the development of birth cohort studies, validated diagnostic scoring systems, minimally invasive disease-monitoring methods, and the development of new therapies. PMID- 29043075 TI - Recent advances in understanding autoimmune thyroid disease: the tallest tree in the forest of polyautoimmunity. AB - Autoimmune thyroid disease (AITD) is often observed together with other autoimmune diseases. The coexistence of two or more autoimmune diseases in the same patient is referred to as polyautoimmunity, and AITD is the autoimmune disease most frequently involved. The occurrence of polyautoimmunity has led to the hypothesis that the affected patients suffer from a generalized dysregulation of their immune system. The present review summarizes recent discoveries unravelling the immunological mechanisms involved in autoimmunity, ranging from natural autoimmunity to disease-specific autoimmunity. Furthermore, the clinical grounds for considering AITD in a setting of polyautoimmunity are explored. A better understanding of these may pave the way for designing new treatment modalities targeting the underlying immune dysregulation when AITD appears in the context of polyautoimmunity. PMID- 29043076 TI - The management of functional dyspepsia in clinical practice: what lessons can be learnt from recent literature? AB - Functional dyspepsia is a prevalent functional gastrointestinal disorder that can significantly erode the quality of life of sufferers and places a major cost burden on healthcare services. In this article, we review the recent literature, selecting the information we consider relevant since it has changed our clinical management of patients with functional dyspepsia. PMID- 29043077 TI - Recent Advances in Understanding Werner Syndrome. AB - Aging, the universal phenomenon, affects human health and is the primary risk factor for major disease pathologies. Progeroid diseases, which mimic aging at an accelerated rate, have provided cues in understanding the hallmarks of aging. Mutations in DNA repair genes as well as in telomerase subunits are known to cause progeroid syndromes. Werner syndrome (WS), which is characterized by accelerated aging, is an autosomal-recessive genetic disorder. Hallmarks that define the aging process include genomic instability, telomere attrition, epigenetic alterations, loss of proteostasis, deregulation of nutrient sensing, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, and altered intercellular communication. WS recapitulates these hallmarks of aging and shows increased incidence and early onset of specific cancers. Genome integrity and stability ensure the normal functioning of the cell and are mainly guarded by the DNA repair machinery and telomeres. WRN, being a RecQ helicase, protects genome stability by regulating DNA repair pathways and telomeres. Recent advances in WS research have elucidated WRN's role in DNA repair pathway choice regulation, telomere maintenance, resolution of complex DNA structures, epigenetic regulation, and stem cell maintenance. PMID- 29043078 TI - A GAP that Divides. AB - Cytokinesis in metazoan cells is mediated by an actomyosin-based contractile ring that assembles in response to activation of the small GTPase RhoA. The guanine nucleotide exchange factor that activates RhoA during cytokinesis, ECT-2, is highly regulated. In most metazoan cells, with the notable exception of the early Caenorhabditis elegans embryo, RhoA activation and furrow ingression require the centralspindlin complex. This exception is due to the existence of a parallel pathway for RhoA activation in C. elegans. Centralspindlin contains CYK-4 which contains a predicted Rho family GTPase-activating protein (GAP) domain. The function of this domain has been the subject of considerable debate. Some publications suggest that the GAP domain promotes RhoA activation (for example, Zhang and Glotzer, 2015; Loria, Longhini and Glotzer, 2012), whereas others suggest that it functions to inactivate the GTPase Rac1 (for example, Zhuravlev et al., 2017). Here, we review the mechanisms underlying RhoA activation during cytokinesis, primarily focusing on data in C. elegans. We highlight the importance of considering the parallel pathway for RhoA activation and detailed analyses of cyk-4 mutant phenotypes when evaluating the role of the GAP domain of CYK-4. PMID- 29043079 TI - Acute Coronary Syndromes in the Elderly. AB - The clinical evidence for treatment of acute coronary syndrome (ACS) in the elderly is less robust than in patients younger than 75 years. The elderly have the highest incidence of cardiovascular disease and frequently present with ACS. This number can be expected to increase over time because society is aging. Older adults often sustain unfavorable outcomes from ACS because of atypical presentation and delay in recognition. In addition, elderly patients commonly do not receive optimal guideline-directed ACS treatment. Owing to their high baseline risk of ischemic complications, the elderly also fare worse even with optimal ACS treatment as they frequently have more complex coronary disease, more comorbidities, less cardiovascular reserve, and a higher risk of treatment complications. They are also subjected to a broader range of pharmacologic treatment. Treatment complications can be mitigated to some extent by meticulous dose adjustment of antithrombotic and adjunctive therapies. While careful transitions of care and appropriate utilization of post-discharge secondary preventive measures are important in ACS patients of all ages, the elderly are more vulnerable to system errors and thus deserve special attention from the clinician. PMID- 29043080 TI - Recent advances in rhythm control for atrial fibrillation. AB - Atrial fibrillation (AF) remains a difficult management problem. The restoration and maintenance of sinus rhythm-rhythm control therapy-can markedly improve symptoms and haemodynamics for patients who have paroxysmal or persistent AF, but some patients fare well with rate control alone. Sinus rhythm can be achieved with anti-arrhythmic drugs or electrical cardioversion, but the maintenance of sinus rhythm without recurrence is more challenging. Catheter ablation of the AF triggers is more effective than anti-arrhythmic drugs at maintaining sinus rhythm. Whilst pulmonary vein isolation is an effective strategy, other ablation targets are being evaluated to improve sinus rhythm maintenance, especially in patients with chronic forms of AF. Previously extensive ablation strategies have been used for patients with persistent AF, but a recent trial has shown that pulmonary vein isolation without additional ablation lesions is associated with outcomes similar to those of more extensive ablation. This has led to an increase in catheter-based technology to achieve durable pulmonary vein isolation. Furthermore, a combination of anti-arrhythmic drugs and catheter ablation seems useful to improve the effectiveness of rhythm control therapy. Two large ongoing trials evaluate whether a modern rhythm control therapy can improve prognosis in patients with AF. PMID- 29043082 TI - Effect of sex and age on traumatic brain injury: a geographical comparative study. AB - BACKGROUND: Traumatic brain injury (TBI) is a much researched topic in medical health, which requires additional studies to understand various effects of demographic and geographic factors that can assist in developing the most effective treatments. Thousands of people of different ages are suffering from lifelong disabilities, either mild or severe, from TBI and the number is increasing. This study aims to increase our understanding of the effect of sex and age by applying five different statistical methods to evaluate the effect of these covariates on two independent TBI data sets representing patients from different geographical cohorts. A primary data was collected from Bangladesh and it was compared with CRASH (Corticosteroid Randomisation after Significant Head Injury) data, representing various countries around the world. METHODS: The outcome variable for TBI considered in this paper is Glasgow Outcome Scale, which is a four point scale. It was converted to a binary outcome scale for fitting of Fisher's exact test, a test of proportions and a binary linear model. For analyzing ordinal outcomes, the proportional odds model and the sliding dichotomy model were fitted. As the sample size of the Bangladeshi data set was small, parametric bootstrapping was applied for the consistency of results. RESULTS: Females were the worse sufferers of TBI compared to men, according to CRASH data set. The old (aged above 58 years) followed by adults (age 25 to 58) were the most vulnerable victims. Interaction effects concluded that old women tended to endure the worst outcomes of TBI. This conclusion came from the CRASH data set representing the world in general, whereas such effects were not present in the Bangladesh data set. Additional application of parametric bootstrapping for the smaller Bangladesh data set did not result into any significant outcome. CONCLUSION: The effect of gender and age could be stronger in some countries than others which is driving the significance in CRASH and was not found in Bangladesh. It reflects the necessity of incorporating geographic patterns as well as demographic features of patients while developing treatments and designing clinical trials. PMID- 29043081 TI - Effects of phospho- and calciotropic hormones on electrolyte transport in the proximal tubule. AB - Calcium and phosphate are critical for a myriad of physiological and cellular processes within the organism. Consequently, plasma levels of calcium and phosphate are tightly regulated. This occurs through the combined effects of the phospho- and calciotropic hormones, parathyroid hormone (PTH), active vitamin D 3, and fibroblast growth factor 23 (FGF23). The organs central to this are the kidneys, intestine, and bone. In the kidney, the proximal tubule reabsorbs the majority of filtered calcium and phosphate, which amounts to more than 60% and 90%, respectively. The basic molecular mechanisms responsible for phosphate reclamation are well described, and emerging work is delineating the molecular identity of the paracellular shunt wherein calcium permeates the proximal tubular epithelium. Significant experimental work has delineated the molecular effects of PTH and FGF23 on these processes as well as their regulation of active vitamin D 3 synthesis in this nephron segment. The integrative effects of both phospho- and calciotropic hormones on proximal tubular solute transport and subsequently whole body calcium-phosphate balance thus have been further complicated. Here, we first review the molecular mechanisms of calcium and phosphate reabsorption from the proximal tubule and how they are influenced by the phospho- and calciotropic hormones acting on this segment and then consider the implications on both renal calcium and phosphate handling as well as whole body mineral balance. PMID- 29043083 TI - A framework for continuous target tracking during MR-guided high intensity focused ultrasound thermal ablations in the abdomen. AB - BACKGROUND: During lengthy magnetic resonance-guided high intensity focused ultrasound (MRg-HIFU) thermal ablations in abdominal organs, the therapeutic work flow is frequently hampered by various types of physiological motion occurring at different time-scales. If left un-addressed this can lead to an incomplete therapy and/or to tissue damage of organs-at-risk. While previous studies focus on correction schemes for displacements occurring at a particular time-scale within the work-flow of an MRg-HIFU therapy, in the current work we propose a motion correction strategy encompassing the entire work-flow. METHODS: The proposed motion compensation framework consists of several linked components, each being adapted to motion occurring at a particular time-scale. While respiration was addressed through a fast correction scheme, long term organ drifts were compensated using a strategy operating on time-scales of several minutes. The framework relies on a periodic examination of the treated area via MR scans which are then registered to a reference scan acquired at the beginning of the therapy. The resulting displacements were used for both on-the-fly re optimization of the interventional plan and to ensure the spatial fidelity between the different steps of the therapeutic work-flow. The approach was validated in three complementary studies: an experiment conducted on a phantom undergoing a known motion pattern, a study performed on the abdomen of 10 healthy volunteers and during 3 in-vivo MRg-HIFU ablations on porcine liver. RESULTS: Results have shown that, during lengthy MRg-HIFU thermal therapies, the human liver and kidney can manifest displacements that exceed acceptable therapeutic margins. Also, it was demonstrated that the proposed framework is capable of providing motion estimates with sub-voxel precision and accuracy. Finally, the 3 successful animal studies demonstrate the compatibility of the proposed approach with the work-flow of an MRg-HIFU intervention under clinical conditions. CONCLUSIONS: In the current study we proposed an image-based motion compensation framework dedicated to MRg-HIFU thermal ablations in the abdomen, providing the possibility to re-optimize the therapy plan on-the-fly with the patient on the interventional table. Moreover, we have demonstrated that even under clinical conditions, the proposed approach is fully capable of continuously ensuring the spatial fidelity between the different phases of the therapeutic work-flow. PMID- 29043084 TI - Multi-species genetic connectivity in a terrestrial habitat network. AB - BACKGROUND: Habitat fragmentation reduces genetic connectivity for multiple species, yet conservation efforts tend to rely heavily on single-species connectivity estimates to inform land-use planning. Such conservation activities may benefit from multi-species connectivity estimates, which provide a simple and practical means to mitigate the effects of habitat fragmentation for a larger number of species. To test the validity of a multi-species connectivity model, we used neutral microsatellite genetic datasets of Canada lynx (Lynx canadensis), American marten (Martes americana), fisher (Pekania pennanti), and southern flying squirrel (Glaucomys volans) to evaluate multi-species genetic connectivity across Ontario, Canada. RESULTS: We used linear models to compare node-based estimates of genetic connectivity for each species to point-based estimates of landscape connectivity (current density) derived from circuit theory. To our knowledge, we are the first to evaluate current density as a measure of genetic connectivity. Our results depended on landscape context: habitat amount was more important than current density in explaining multi-species genetic connectivity in the northern part of our study area, where habitat was abundant and fragmentation was low. In the south however, where fragmentation was prevalent, genetic connectivity was correlated with current density. Contrary to our expectations however, locations with a high probability of movement as reflected by high current density were negatively associated with gene flow. Subsequent analyses of circuit theory outputs showed that high current density was also associated with high effective resistance, underscoring that the presence of pinch points is not necessarily indicative of gene flow. CONCLUSIONS: Overall, our study appears to provide support for the hypothesis that landscape pattern is important when habitat amount is low. We also conclude that while current density is proportional to the probability of movement per unit area, this does not imply increased gene flow, since high current density tends to be a result of neighbouring pixels with high cost of movement (e.g., low habitat amount). In other words, pinch points with high current density appear to constrict gene flow. PMID- 29043086 TI - Hepatitis B vaccination coverage and the determinants of vaccination among health care workers in selected health facilities in Lusaka district, Zambia: an exploratory study. AB - BACKGROUND: Hepatitis B is a viral infection of the liver and causes both acute and chronic disease. It is transmitted through contact with an infected person's bodily fluids. It is an occupational hazard for healthcare workers and can be prevented by the administration of a vaccine. It is recommended that healthcare workers be vaccinated against vaccine preventable diseases including hepatitis B. The study objective was to determine the prevalence and determinants of hepatitis B vaccination among healthcare workers in selected health facilities in Lusaka. METHODS: The study took place in seven health facilities across Lusaka district in Zambia. A total sample size of 331 healthcare workers was selected of which; 90 were nurses, 88 were doctors, 86 were laboratory personnel and 67 were general workers. A self-administered structured questionnaire was given to a total of 331 healthcare workers. Investigator led stepwise approach was used to select the best predictor variables in a multiple logistic regression model and all analyses were performed using STATA software, version 12.1 SE (Stata Corporation, College Station, TX, USA). RESULTS: Only 64(19.3%) of the healthcare workers were vaccinated against hepatitis B, with 35 (54.7%) of these being fully vaccinated and 29 (45.3%) partially vaccinated. Analysis showed that; age of the healthcare worker, sharp injuries per year and training in infection control were the variables that were statistically significant in predicting a healthcare worker's vaccination status. CONCLUSION: It is reassuring to learn that healthcare workers have knowledge regarding hepatitis B and the vaccine and are willing to be vaccinated against it. Health institutions should bear the cost for vaccinating staff and efforts should be made for appropriate health education regarding hepatitis B infection and its prevention. Establishment of policies on compulsory hepatitis B vaccination for healthcare workers in Zambia is recommended. PMID- 29043085 TI - A pilot open series of lamotrigine in DBT-treated eating disorders characterized by significant affective dysregulation and poor impulse control. AB - BACKGROUND: There is little effective psychopharmacological treatment for individuals with eating disorders who struggle with pervasive, severe affective and behavioral dysregulation. METHODS: This pilot open series evaluated lamotrigine, a mood stabilizer, in the treatment of patients with eating disorders who did not respond adequately to antidepressant medications. Nine women with anorexia nervosa- or bulimia nervosa-spectrum eating disorders in partial hospital or intensive outpatient dialectical behavior therapy (DBT)-based eating disorder treatment took lamotrigine for 147 +/- 79 days (mean final dose = 161.1 +/- 48.6 mg/day). Participants completed standardized self-report measures of emotion dysregulation and impulsivity after lamotrigine initiation and approximately biweekly thereafter. Mood and eating disorder symptomatology were measured at lamotrigine initiation and at time of final assessment. RESULTS: Lamotrigine and concurrent DBT were associated with large reductions in self reported affective and behavioral dysregulation (ps < 0.01). Eating disorder and mood symptoms decreased moderately. CONCLUSIONS: Although our findings are limited by the confounds inherent in an open series, lamotrigine showed initial promise in reducing emotional instability and behavioral impulsivity in severely dysregulated eating-disordered patients. These preliminary results support further investigation of lamotrigine for eating disorders in rigorous controlled trials. PMID- 29043087 TI - Sleepiness while driving and shiftwork patterns among Korean bus drivers. AB - BACKGROUND: Sleepiness while driving has been regarded as a major cause of death due to traffic accidents. We compared the degree of sleepiness across five different working time periods (first, morning, post-lunch, afternoon, and last) among Korean bus drivers with different shift types (Daily two shift/Alternating day shift). METHOD: We interviewed 332 bus drivers with two shift types (Daily two shift, 128; Alternating day shift, 204). The questionnaire included demographic information (age, alcohol consumption and history of disease), a sleep disorder diagnosed by a doctor, job duration, the number of workdays in the past month, average working hours per workday and week, sleepiness while driving (Karolinska Sleepiness Scale), and sleeping time for both workdays and off-days. We conducted log-binomial regression analyses and produced prevalence ratios (PRs) of severe sleepiness (KSS >= 7) while driving with 95% confidence intervals (95% CI) to identify the difference in sleepiness for five working times between both groups. RESULTS: For the first and morning periods, there were no statistically significant differences in the KSS scores between the two groups. However, from lunch to last driving, drivers with Alternating day shift had a much larger proportion of severe sleepiness than those on Daily two shift. Thirteen (10.2%), 2 (1.6%) and 7 (5.5%) Daily two shift workers reported severe sleepiness in the post-lunch, afternoon and last periods. In contrast, 81 (39.7%), 63 (30.9%) and 64 (31.4%) of Alternating day shift drivers experienced severe sleepiness during the post-lunch, afternoon and last driving periods (p < 0.0001). According to the log-binomial regression analyses, Alternating day shift was associated with severe sleepiness from lunch to last driving. After adjusting for job duration, alcohol consumption and sleeping time on workdays, the PRs were 3.97 (95% CI: 2.29-6.90) post-lunch, 18.26 (95% CI: 4.51-73.89) in the afternoon and 5.71 (95% CI: 2.51-12.99) for the last driving period. CONCLUSION: We found that Alternating day shift bus drivers suffered from more sleepiness while driving from lunch to last driving than Daily two shift bus drivers. This difference may be because Alternating day shift drivers had more irregular work schedules and longer working hours per day and week. PMID- 29043088 TI - The relationship between spontaneous abortion and female workers in the semiconductor industry. AB - BACKGROUND: This study investigated the relationship between job type and the risk for spontaneous abortion to assess the reproductive toxicity of female workers in the semiconductor industry. METHODS: A questionnaire survey was administered to current female workers of two semiconductor manufacturing plants in Korea. We included female workers who became pregnant at least 6 months after the start of their employment with the company. The pregnancy outcomes of 2,242 female workers who experienced 4,037 pregnancies were investigated. Personnel records were used to assign the subjects to one of three groups: fabrication process workers, packaging process workers, and clerical workers. To adjust for within-person correlations between pregnancies, a generalized estimating equation was used. The logistic regression analysis was limited to the first pregnancy after joining the company to satisfy the assumption of independence among pregnancies. Moreover, we stratified the analysis by time period (pregnancy in the years prior to 2008 vs. after 2009) to reflect differences in occupational exposure based on semiconductor production periods. RESULTS: The risk for spontaneous abortion in female semiconductor workers was not significantly higher for fabrication and packaging process workers than for clerical workers. However, when we stratified by time period, the odds ratio for spontaneous abortion was significantly higher for packaging process workers who became pregnant prior to 2008 when compared with clerical workers (odds ratio: 2.21; 95% confidence interval: 1.01-4.81). CONCLUSIONS: When examining the pregnancies of female semiconductor workers that occurred prior to 2008, packaging process workers showed a significantly higher risk for spontaneous abortions than did clerical workers. The two semiconductor production periods in our study (prior to 2008 vs. after 2009) had different automated processes, chemical exposure levels, and working environments. Thus, the conditions prior to 2008 may have increased the risk for spontaneous abortions in packaging process workers in the semiconductor industry. PMID- 29043089 TI - Dermal and neural toxicity caused by acrylamide exposure in two Korean grouting workers: a case report. AB - BACKGROUND: Peripheral neuritis caused by acrylamide is well-known, and many Korean grouting workers are frequently exposed to acrylamide in grouting agents that are injected into cracked concrete. We recently encountered two cases of dermal and neural toxicity in Korean grouting workers with exposure to grouting agents that contained a high concentration of acrylamide. CASE PRESENTATION: The first case involved a 44-year-old man with 8 years of waterproofing experience. The patient developed peeling skin on both hands while grouting, which progressed to systemic neurological symptoms, such as reduced sensory function and strength. The patient was diagnosed with peripheral neuropathy caused by acrylamide exposure, and fully recovered after conservative treatment and withdrawal of exposure to the grouting agent. The second case involved a 34-year-old man with 10 years of grouting experience. The patient initially experienced weakness in both legs, which progressed to weakness in his arms and uncontrolled phonation. After being hospitalized, he was diagnosed with cerebellar ataxia and peripheral neuropathy caused by acrylamide exposure, and was discharged after conservative treatment. Our follow-up investigation revealed that both workers were recently exposed to grouting agents that contained higher concentrations of acrylamide, compared to the agents that they had previously been using. CONCLUSIONS: Both workers had workplace acrylamide exposure through dermal contact plus inhalation of dust and vapor, which led to the neural toxicity and dermatitis. Therefore, government studies are needed to investigate the current status of workplace acrylamide use, and to protect workers from the hazardous effects of using acrylamide-containing grouting agents. PMID- 29043090 TI - The use of infrared thermography to detect the stages of estrus cycle and ovulation time in anatolian shepherd dogs. AB - BACKGROUND: The aim of the study is to evaluate the effectiveness of thermographic monitoring, using the temperature changes of perianal and perivulvar areas for the determination of estrus in Anatolian Shepherd bitches. Fifteen bitches were used in the study. Blood and vaginal smear samples were collected and thermographic monitoring of perianal and perivulvar areas were carried out starting from proestrus to early diestrus. Also, external signs of estrus were investigated. Smear samples were evaluated by light microscopy after Diff-Quik staining method and superficial and keratinized superficial cells were determined as percentage (S + KS%). Progesterone and luteinizing hormone measurements were done by radioimmunoassay. The difference in temperature between perianal and perivulvar areas was evaluated through thermographic images by FLIR ResearchIR Software. RESULTS: According to the results obtained from the study, differences between progesterone and S + KS% were statistically significant (P < 0,05). Although temperature showed increase and decrease with progesterone and S + KS%, the differences were not important statistically (P > 0,05). Serum luteinizing hormone levels did not sign any difference (P > 0,05). CONCLUSIONS: As a result, thermographic monitoring alone is not enough for estrus detection in Anatolian Shepherd bitches. However, it can be used to assist the actual estrus detection technique in terms of providing some foreknowledge by evaluating the differences in temperature. PMID- 29043091 TI - HOPE: Help fOr People with money, employment, benefit or housing problems: study protocol for a randomised controlled trial. AB - BACKGROUND: Self-harm and suicide increase in times of economic recession. Factors including job loss, austerity measures, financial difficulties and house repossession contribute to the risk. Vulnerable individuals commonly experience difficulties in navigating the benefits system and in accessing the available sources of welfare and debt advice, and this contributes to their distress. Our aim is to determine the feasibility and acceptability of a brief psychosocial intervention (the "HOPE" service) for people presenting to hospital emergency departments (ED) following self-harm or in acute distress because of financial, employment, or welfare (benefit) difficulties. METHOD: A pilot study including randomisation will be employed to determine whether it is possible to undertake a full-scale trial. Twenty people presenting to the ED who have self-harmed, have suicidal thoughts and depression and/or are in crisis and where financial, employment or benefit problems are cited as contributory factors will be asked to consent to random allocation to the intervention or control arm on a 2:1 basis. People who require secondary mental health follow-up will be excluded. Those randomised to the intervention arm will receive up to six sessions with a mental health worker who will provide practical help with financial and other problems. The mental health worker will use the motivational interviewing method in their interactions with participants. Control participants will receive one session signposting them to existing relevant support organisations. Participants will be followed up after 3 months. Participants and the mental health workers will take part in qualitative interviews to enable refinement of the intervention. The acceptability of outcome measures including the PHQ-9, GAD-7, repeat self-harm, EQ5D-5L and questions about debt, employment and welfare benefits will be explored. DISCUSSION: This study will assess whether a full-scale randomised trial of this novel intervention to prevent self-harm among those distressed because of financial difficulties is feasible, including the acceptability of randomisation, potential rate of recruitment and the acceptability of outcome measures. TRIAL REGISTRATION: ISRCTN58531248. PMID- 29043092 TI - Twenty-seven-gauge vitrectomy for combined tractional and rhegmatogenous retinal detachment involving the macula associated with proliferative diabetic retinopathy. AB - BACKGROUND: To report our experience using 27-gauge pars plana vitrectomy (PPV) system for treating patients with combined tractional and rhegmatogenous retinal detachments (CTRRD) involving the macula associated with proliferative diabetic retinopathy (PDR). METHODS: Retrospective noncomparative interventional cases series of 12 patients with CTRRD associated with PDR who underwent 3-port, transconjunctival 27-gauge PPV by a single surgeon. Main outcome measures were change in Snellen best corrected visual acuity (BCVA) and occurrence of intra- and post-operative complications. RESULTS: Twelve eyes from 12 patients (9 men and 3 women) underwent 27-gauge PPV. Mean follow-up was 17 months (range 8-26 months). Preoperatively, BCVA of 20/400 or better was recorded in only 2 of 12 (16.7%) eyes. Postoperatively, BCVA improved to 20/400 or better in 11 of 12 (91.7%) eyes at 6 months (P = 0.001). At last follow-up, BCVA of 20/400 or better was recorded in 10 of 12 (83.3%), in comparison to 2 (16.7%) eyes at baseline (P = 0.004). The only intraoperative complication was an iatrogenic break in 1 eye (8.3%). Postoperative complications included vitreous hemorrhage in 4 eyes (33.3%) and transient ocular hypertension in 3 eyes (25.0%). At final follow-up anatomic success was confirmed in all eyes. CONCLUSION: The current study findings suggest that 27-gauge PPV is a safe and promising surgical technology for treating patients with CTRRD involving the macula associated with PDR. Smaller gauge instruments and higher cutting rates may facilitate the dissection and shaving of fibrovascular membranes, while minimizing intra- and post operative complications. PMID- 29043093 TI - Anatomical study of petrous and cavernous parts of internal carotid artery. AB - The petrous and cavernous parts of internal carotid artery (ICA) are obscure and are not readily accessible to observation/imaging. These parts have broad biological and medical interest because of their peculiar shape. Given the their clinical importance and the scarce data available based mostly on imaging, the present study was aimed at studying these parts of ICA by dissection. The study was carried out on 56 ICAs obtained from embalmed adult cadavers and 10 ICAs from five fetuses. The foetal ICAs were studied in situ. The morphometric analysis of the adult ICA was done after its removal from cranial cavity to gain an insight into the geometry of the vessel, i.e., length, various bends, and diameters at various locations. ICAs in fetuses ran a relatively straighter course taking gentle curves at three positions (two intrapetrous, one cavernous). Adult ICAs were more tortuous and exhibited greater variability in length and angulations. The length of respective portions of the ICA correlate negatively with the measure of angles. The angles in the petrous and cavernous parts were positively correlated to each other. The carotid siphon was positively, highly significantly correlated to other angles. Longer vessels are more tortuous with acute bends. An acute carotid siphon is an indication of more tortuous ICA. The findings of the present study have created a reference data of unsuspected adult population and has potential implications for studying cause/effect relationship of vessel geometry and hemodynamic factors. PMID- 29043094 TI - Mid-foot retinaculum: an unrecognized entity. AB - Retinacula are thickenings of deep fascia in the region of joints that hold down the tendons preventing them from bowing out of position. In the region of ankle, number of such retinacula have been described. Retinacula like superior and inferior extensor retinacula have been described which hold down the tendons of leg muscles passing to the foot beneath them. As the extensor tendons of the leg have more distal attachment to the toes, the present study was conducted to ascertain the presence of any additional retinaculum in the mid-foot region, which would tie down the tendons for their effective action at the distal joints. The aim was also to determine the attachments of the retinaculum, if present as well as the structures passing beneath them. Fifty cadaveric feet were dissected carefully for this purpose. Presence of an additional extensor retinaculum distal to the inferior band of inferior extensor retinaculum in the mid-foot region was found in 22 feet. Besides the extensor tendons, medial terminal branch of deep peroneal nerve and dorsalis pedis artery was found to pass beneath the retinaculum. A partial or complete mid-foot retinaculum existed in the mid-foot region covering the tarsometatarsal joints in about half of study population. Functionally, this retinaculum may prevent bowstringing of the extensor tendons, clinically it may predispose to entrapment of deep peroneal nerve mimicking anterior tarsal tunnel syndrome. PMID- 29043095 TI - Applied anatomy, today's requirement for clinical medicine courses. AB - Anatomy as an indispensable part of the medical curricula, offering impeccable knowledge, prepares the students to enter the practical atmosphere. The aim of this study was to evaluate the clinical application of anatomy courses of the medical students in Zanjan University of Medical Sciences. This cross-sectional study was conducted in 2015 with census sampling on all clinical students (trainees and interns). To collect feedback from students, the questionnaire designed by researchers was used. The Likert rating scale of very high, high, medium, low, and very low was considered and scores of 5 (very high) to 1 (very low) were applied. Data were analyzed by SPSS software. Among the courses of anatomy, trunk anatomy has the greatest impact on clinical courses of medical students (P<0.001). Subjects of muscular system, lymphatic system, vascular system, and nervous system were of significant clinical application during clinical periods; however, no significant clinical application observed for skeletal system (P<0.05). Teaching clinical tips by professors can help improve the performance of medical students in clinical education. In addition, using three-dimensional anatomical software is suggested as well. PMID- 29043096 TI - Sex determination using humeral dimensions in a sample from KwaZulu-Natal: an osteometric study. AB - The morphological characteristics of the humeral bone has been investigated in recent times with studies showing varying degrees of sexual dimorphism. Osteologists and forensic scientists have shown that sex determination methods based on skeletal measurements are population specific, and these population specific variations are present in many body dimensions. The present study aims to establish sex identification using osteometric standards for the humerus in a contemporary KwaZulu-Natal population. A total of 11 parameters were measured in a sample of n=211 humeri (males, 113; females, 98) from the osteological collection in the Discipline of Clinical Anatomy, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa. The difference in means for nearly all variables were found to be significantly higher in males compared to females (P<0.01) with the most effective single parameter for predicting sex being the vertical head diameter having an accuracy of 82.5%. Stepwise discriminant analysis increased the overall accuracy rate to 87.7% when all measurements were jointly applied. We conclude that the humerus is an important bone which can be reliably used for sex determination based on standard metric methods despite minor tribal or ancestral differences amongst an otherwise homogenous population. PMID- 29043097 TI - Histological study on the effect of nicotine on adult male guinea pig thin skin. AB - Tobacco smoking has been identified as an important factor in premature skin aging to detect the histological changes occurred in adult male guinea pig thin skin under the influence of low and high doses of nicotine; which constitutes approximately 0.6%-3.0% of the dry weight of tobacco. Fifteen adult male pigmented guinea pigs were equally divided into three groups: group I, control; group IIA, low dose nicotine treated; 3 mg/kg subcutaneously for 4 weeks; and group IIB, high dose nicotine treated; 6 mg/kg subcutaneously for 4 weeks. Specimens from the back thin skin were processed for light and electron microscopy. Nicotine administration revealed flattened dermo-epidermal junction and reduced rete ridges formation. Collagen bundles were disorganized with increased spaces between them. A reduction in the amount of elastic fibers in the dermis were also observed compared to group I. Ultrastructurally, keratinocytes had hyperchromatic nuclei, intracytoplasmic vacuoles, disruption of desmosomal junctions, irregular tonofilaments distribution, and increased inter-cellular spaces. These changes were more pronounced with high dose nicotine administration. The epidermal thickness was reduced in low dose nicotine administration. But, high dose nicotine administration revealed increased epidermal thickness compared to the control group. Nicotine induced structural changes of adult male guinea pig thin skin. These changes were more pronounced with high dose nicotine administration. PMID- 29043098 TI - Spermidine is protective against kidney ischemia and reperfusion injury through inhibiting DNA nitration and PARP1 activation. AB - Kidney ischemia and reperfusion injury (IRI) is associated with a high mortality rate, which is attributed to tubular oxidative and nitrative stresses; however, an effective approach to limit IRI remains elusive. Spermidine, a naturally occurring polyamine, protects yeast cells against aging through the inhibition of oxidative stress and necrosis. In the present study, spermidine supplementation markedly attenuated histological damage and kidney dysfunction during IRI. In addition, exogenous spermidine potently inhibited poly(ADP-ribose) polymerase 1 (PARP1) activation and DNA nitrative/oxidative stress following IRI. Conversely, inhibition of ornithine decarboxylase (ODC) via siRNA transfection in vivo significantly enhanced DNA nitration, PARP1 activation, and functional damage during IRI. Finally, in ODC knockdown kidneys, PARP1 inhibition attenuated histological and functional damage induced by IRI, but not DNA nitrative stress. In conclusion, these data suggest that spermidine protects kidneys against IRI through blocking DNA nitration and PARP1 activation and this finding provides a novel target for prevention of acute kidney injury including IRI. PMID- 29043099 TI - Lithium ameliorates rat spinal cord injury by suppressing glycogen synthase kinase-3beta and activating heme oxygenase-1. AB - Glycogen synthase kinase (GSK)-3beta and related enzymes are associated with various forms of neuroinflammation, including spinal cord injury (SCI). Our aim was to evaluate whether lithium, a non-selective inhibitor of GSK-3beta, ameliorated SCI progression, and also to analyze whether lithium affected the expression levels of two representative GSK-3beta-associated molecules, nuclear factor erythroid 2-related factor-2 (Nrf-2) and heme oxygenase-1 (HO-1) (a target gene of Nrf-2). Intraperitoneal lithium chloride (80 mg/kg/day for 3 days) significantly improved locomotor function at 8 days post-injury (DPI); this was maintained until 14 DPI (P<0.05). Western blotting showed significantly increased phosphorylation of GSK-3beta (Ser9), Nrf-2, and the Nrf-2 target HO-1 in the spinal cords of lithium-treated animals. Fewer neuropathological changes (e.g., hemorrhage, inflammatory cell infiltration, and tissue loss) were observed in the spinal cords of the lithium-treated group compared with the vehicle-treated group. Microglial activation (evaluated by measuring the immunoreactivity of ionized calcium-binding protein-1) was also significantly reduced in the lithium treated group. These findings suggest that GSK-3beta becomes activated after SCI, and that a non-specific enzyme inhibitor, lithium, ameliorates rat SCI by increasing phosphorylation of GSK-3beta and the associated molecules Nrf-2 and HO 1. PMID- 29043100 TI - Expression of glucose transporters in the developing rat skin. AB - We found the changed distribution of glucose transporter (GLUT) proteins in the skin during rat development. At 15 days of gestation, GLUT1 and 2 proteins were expressed in the stratum corneum of epidermal cells. In postnatal skin, however, GLUT1 and 2 exhibit different expression patterns. While GLUT1 expression becomes more restricted to the stratum basale with development, GLUT2 was found mainly in stratum spinosum and granulosum, but not being localized in the stratum basale at any stages of perinatal skin development. Considering all these, it can be speculated that each GLUT protein plays its specific role in different epidermal layers and that the glucose used in mammalian skin in utero could be originated from the amniotic fluid during skin development. PMID- 29043101 TI - Protective effect of Rhus verniciflua Stokes extract in an experimental model of post-menopausal osteoporosis. AB - Post-menopausal osteoporosis (PMO) is a major global human health concern. Owing to the need for therapeutic drugs without side effects, natural extracts containing various polyphenolic compounds that may exert estrogenic effects have been studied in depth. Rhus verniciflua Stokes (RVS), which has been used as a traditional herbal medicine for centuries in Korea, was recently revealed to exert estrogenic effects attributable to its bioactive ingredients sulfuretin and butein, which have strong estrogen receptor-binding affinities. In this study, the protective potential of RVS in PMO was evaluated by using an experimental animal model of PMO, which was established by ovariectomy (OVX) of female Sprague Dawley rats. The oral administration of RVS at 20 mg/kg or 100 mg/kg for 8 weeks markedly protected against OVX-induced atrophy of the uterine tube and reversed the elevation in the ratio of serum receptor activator of nuclear factor-kappaB ligand to osteoprotegerin, which is a marker of disease severity. In addition, RVS inhibited OVX-induced tibia bone loss, activated osteogenic activity, and suppressed osteoclastic activity in the tibial epiphyseal plate, a region of bone remodeling. Collectively, these factors indicated that the oral intake of RVS might be beneficial for the prevention of PMO. PMID- 29043102 TI - The distribution of calbindin-D28k, parvalbumin, and calretinin immunoreactivity in the inferior colliculus of circling mouse. AB - The circling mice with tmie gene mutation are known as an animal deafness model, which showed hyperactive circling movement. Recently, the reinvestigation of circling mouse was performed to check the inner ear pathology as a main lesion of early hearing loss. In this trial, the inner ear organs were not so damaged to cause the hearing deficit of circling (cir/cir) mouse at 18 postnatal day (P18) though auditory brainstem response data indicated hearing loss of cir/cir mice at P18. Thus, another mechanism may be correlated with the early hearing loss of cir/cir mice at P18. Hearing loss in the early life can disrupt the ascending and descending information to inferior colliculus (IC) as integration site. There were many reports that hearing loss could result in the changes in Ca2+ concentration by either cochlear ablation or genetic defect. However, little was known to be reported about the correlation between the pathology of IC and Ca2+ changes in circling mice. Therefore, the present study investigated the distribution of calcium-binding proteins (CaBPs), calbindin-D28k, parvalbumin, and calretinin immunoreactivity (IR) in the IC to compare among wild-type (+/+), heterozygous (+/cir), and homozygous (cir/cir) mice by immunohistochemistry. The decreases of CaBPs IR in cir/cir were statistically significant in the neurons as well as neuropil of IC. Thus, this study proposed overall distributional alteration of CaBPs IR in the IC caused by early hearing defect and might be helpful to elucidate the pathology of central auditory disorder related with Ca2+ metabolism. PMID- 29043103 TI - Unusual muscle of the anterior neck: cadaveric findings with surgical applications. AB - The omohyoid muscle typically has an inferior belly originating from the superior border of the scapula, and then passes deep to the sternocleidomastoid muscle where its superior belly passes almost vertically upward next to the lateral border of sternohyoid to attach to the inferior border of the body of the hyoid bone lateral to the insertion of sternohyoid. Herein, we report an unusual variant of the omohyoid and sternohyoid muscles. As the omohyoid muscle is commonly used as a surgical landmark during neck dissections, knowledge of its variations such as the one described in the current report is important to surgeons. PMID- 29043104 TI - Undescended cecum with accessory right colic artery: a rare case report. AB - Midgut malrotation and incomplete rotation are common causes of neonatal intestinal obstruction. At end of 10 week of intrauterine life, cecum will be placed in subhepatic region temporarily and descends to right lower quadrant by eleventh week. Arrest of cecum in subhepatic region or undescended cecum is a rare congenital anomaly of mid gut. Usually, it remains asymptomatic and is diagnosed incidentally. If any pathology occurs in anomalous part, like appendicitis then the diagnosis and treatment will be challenging in all age groups. Variation in blood supply have also been reported with anomalies leading to iatrogenic injuries during colonoscopy and surgeries. Lack of knowledge of these rare variations may lead to delayed diagnosis of appendicitis leading to perforation and surgical emergencies. In the present case, we describe an undescended cecum and its associated variation in branching pattern of superior mesenteric artery. PMID- 29043105 TI - Retraction notice to "Therapeutic effect of prostaglandin E1 in monocrotaline induced pulmonary arterial hypertension rats" by Lee JC (Anat Cell Biol 2017;50:60-8). AB - [This retracts the article on p. 60 in vol. 50, PMID: 28417056.]. PMID- 29043106 TI - Sediment microbial taxonomic and functional diversity in a natural salinity gradient challenge Remane's "species minimum" concept. AB - Several models have been developed for the description of diversity in estuaries and other brackish habitats, with the most recognized being Remane's Artenminimum ("species minimum") concept. It was developed for the Baltic Sea, one of the world's largest semi-enclosed brackish water body with a unique permanent salinity gradient, and it argues that taxonomic diversity of macrobenthic organisms is lowest within the horohalinicum (5 to 8 psu). The aim of the present study was to investigate the relationship between salinity and sediment microbial diversity at a freshwater-marine transect in Amvrakikos Gulf (Ionian Sea, Western Greece) and assess whether species composition and community function follow a generalized concept such as Remane's. DNA was extracted from sediment samples from six stations along the aforementioned transect and sequenced for the 16S rRNA gene using high-throughput sequencing. The metabolic functions of the OTUs were predicted and the most abundant metabolic pathways were extracted. Key abiotic variables, i.e., salinity, temperature, chlorophyll-a and oxygen concentration etc., were measured and their relation with diversity and functional patterns was explored. Microbial communities were found to differ in the three habitats examined (river, lagoon and sea) with certain taxonomic groups being more abundant in the freshwater and less in the marine environment, and vice versa. Salinity was the environmental factor with the highest correlation to the microbial community pattern, while oxygen concentration was highly correlated to the metabolic functional pattern. The total number of OTUs showed a negative relationship with increasing salinity, thus the sediment microbial OTUs in this study area do not follow Remane's concept. PMID- 29043107 TI - The intervals method: a new approach to analyse finite element outputs using multivariate statistics. AB - BACKGROUND: In this paper, we propose a new method, named the intervals' method, to analyse data from finite element models in a comparative multivariate framework. As a case study, several armadillo mandibles are analysed, showing that the proposed method is useful to distinguish and characterise biomechanical differences related to diet/ecomorphology. METHODS: The intervals' method consists of generating a set of variables, each one defined by an interval of stress values. Each variable is expressed as a percentage of the area of the mandible occupied by those stress values. Afterwards these newly generated variables can be analysed using multivariate methods. RESULTS: Applying this novel method to the biological case study of whether armadillo mandibles differ according to dietary groups, we show that the intervals' method is a powerful tool to characterize biomechanical performance and how this relates to different diets. This allows us to positively discriminate between specialist and generalist species. DISCUSSION: We show that the proposed approach is a useful methodology not affected by the characteristics of the finite element mesh. Additionally, the positive discriminating results obtained when analysing a difficult case study suggest that the proposed method could be a very useful tool for comparative studies in finite element analysis using multivariate statistical approaches. PMID- 29043108 TI - Mysterious inhibitory cell regulator investigated and found likely to be secretogranin II related. AB - In the context of a hunt for a postulated hormone that is tissue-mass inhibiting and reproductively associated, there is described probable relatedness to a granin protein. A 7-8 kDa polypeptide candidate (gels/MS) appeared in a bioassay guided fractionation campaign involving sheep plasma. An N-terminal sequence of 14 amino acids was obtained for the polypeptide by Edman degradation. Bioinformatics and molecular biology failed to illuminate any ovine or non-ovine protein which might relate to this sequence. The N-terminal sequence was synthesized as the 14mer EPL001 peptide and surprisingly found to be inhibitory in an assay in vivo of compensatory renal growth in the rat and modulatory of nematode fecundity, in line with the inhibitory hormone hypothesis. Antibodies were raised to EPL001 and their deployment upheld the hypothesis that the EPL001 amino acid sequence is meaningful and relevant, notwithstanding bioinformatic obscurity. Immunohistochemistry (IHC) in sheep, rodents and humans yielded staining of seeming endocrine relevance (e.g. hypothalamus, gonads and neuroendocrine cells in diverse tissues), with apparent upregulation in certain human tumours (e.g. pheochromocytoma). Discrete IHC staining in Drosophila melanogaster embryo brain was seen in glia and in neuroendocrine cells, with staining likely in the corpus cardiacum. The search for the endogenous antigen involved immunoprecipitation (IP) followed by liquid chromatography and mass spectrometry (LC-MS). Feedstocks were PC12 conditioned medium and aqueous extract of rat hypothalamus-both of which had anti-proliferative and pro-apoptotic effects in an assay in vitro involving rat bone marrow cells, which inhibition was subject to prior immunodepletion with an anti-EPL001 antibody-together with fruit fly embryo material. It is concluded that the mammalian antigen is likely secretogranin II (SgII) related. The originally seen 7-8 kDa polypeptide is suggested to be a new proteoform of secretogranin II of ~70 residues, SgII-70, with the anti-EPL001 antibody seeing a discontinuous epitope. The fly antigen is probably Q9W2X8 (UniProt), an uncharacterised protein newly disclosed as a granin and provisionally dubbed macrogranin I (MgI). SgII and Q9W2X8 merit further investigation in the context of tissue-mass inhibition. PMID- 29043109 TI - Multigene phylogeny of the scyphozoan jellyfish family Pelagiidae reveals that the common U.S. Atlantic sea nettle comprises two distinct species (Chrysaora quinquecirrha and C. chesapeakei). AB - BACKGROUND: Species of the scyphozoan family Pelagiidae (e.g., Pelagia noctiluca, Chrysaora quinquecirrha) are well-known for impacting fisheries, aquaculture, and tourism, especially for the painful sting they can inflict on swimmers. However, historical taxonomic uncertainty at the genus (e.g., new genus Mawia) and species levels hinders progress in studying their biology and evolutionary adaptations that make them nuisance species, as well as ability to understand and/or mitigate their ecological and economic impacts. METHODS: We collected nuclear (28S rDNA) and mitochondrial (cytochrome c oxidase I and 16S rDNA) sequence data from individuals of all four pelagiid genera, including 11 of 13 currently recognized species of Chrysaora. To examine species boundaries in the U.S. Atlantic sea nettle Chrysaora quinquecirrha, specimens were included from its entire range along the U.S. Atlantic and Gulf of Mexico coasts, with representatives also examined morphologically (macromorphology and cnidome). RESULTS: Phylogenetic analyses show that the genus Chrysaora is paraphyletic with respect to other pelagiid genera. In combined analyses, Mawia, sampled from the coast of Senegal, is most closely related to Sanderia malayensis, and Pelagia forms a close relationship to a clade of Pacific Chrysaora species (Chrysaora achlyos, Chrysaora colorata, Chrysaora fuscescens, and Chrysaora melanaster). Chrysaora quinquecirrha is polyphyletic, with one clade from the U.S. coastal Atlantic and another in U.S. Atlantic estuaries and Gulf of Mexico. These genetic differences are reflected in morphology, e.g., tentacle and lappet number, oral arm length, and nematocyst dimensions. Caribbean sea nettles (Jamaica and Panama) are genetically similar to the U.S. Atlantic estuaries and Gulf of Mexico clade of Chrysaora quinquecirrha. DISCUSSION: Our phylogenetic hypothesis for Pelagiidae contradicts current generic definitions, revealing major disagreements between DNA-based and morphology-based phylogenies. A paraphyletic Chrysaora raises systematic questions at the genus level for Pelagiidae; accepting the validity of the recently erected genus Mawia, as well as past genera, will require the creation of additional pelagiid genera. Historical review of the species delineating genetic and morphological differences indicates that Chrysaora quinquecirrha Desor 1848 applies to the U.S. Coastal Atlantic Chrysaora species (U.S. Atlantic sea nettle), while the name C. chesapeakei Papenfuss 1936 applies to the U.S. Atlantic estuarine and Gulf of Mexico Chrysaora species (Atlantic bay nettle). We provide a detailed redescription, with designation of a neotype for Chrysaora chesapeakei, and clarify the description of Chrysaora quinquecirrha. Since Caribbean Chrysaora are genetically similar to Chrysaora chesapeakei, we provisionally term them Chrysaora c.f. chesapeakei. The presence of Mawia benovici off the coast of Western Africa provides a potential source region for jellyfish introduced into the Adriatic Sea in 2013. PMID- 29043110 TI - Neurodynamic mobilization and foam rolling improved delayed-onset muscle soreness in a healthy adult population: a randomized controlled clinical trial. AB - OBJECTIVES: Compare the immediate effects of a Neurodynamic Mobilization (NM) treatment or foam roller (FR) treatment after DOMS. DESIGN: Double blind randomised clinical trial. SETTING: The participants performed 100 drop jumps (5 sets of 20 repetitions, separated by 2 min rests) from a 0.5-m high box in a University biomechanics laboratory to induce muscle soreness. The participants were randomly assigned in a counter-balanced fashion to either a FR or NM treatment group. PARTICIPANTS: Thirty-two healthy subjects (21 males and 11 females, mean age 22.6 +/- 2.2 years) were randomly assigned into the NM group (n = 16) or the FR group (n = 16). MAIN OUTCOME MEASURES: The numeric pain rating scale (NPRS; 0-10), isometric leg strength with dynamometry, surface electromyography at maximum voluntary isometric contraction (MVIC) and muscle peak activation (MPA) upon landing after a test jump were measured at baseline, 48 h after baseline before treatment, and immediately after treatment. RESULTS: Both groups showed significant reduction in NPRS scores after treatment (NM: 59%, p < .01; FR: 45%, p < .01), but no difference was found between them (p > .05). The percentage change improvement in the MVIC for the rectus femoris was the only significant difference between the groups (p < 0.05) at post-treatment. After treatment, only the FR group had a statistically significant improvement (p < 0.01) in strength compared to pre-treatment. CONCLUSION: Our results illustrate that both treatments are effective in reducing pain perception after DOMS whereas only FR application showed differences for the MVIC in the rectus femoris and strength. PMID- 29043111 TI - A retrospective study: does upper airway morphology differ between non-positional and positional obstructive sleep apnea? AB - OBJECTIVE: The objective of this study was to explore the differences in upper airway morphology between positional (POSA) and non-positional (NPOSA) obstructive sleep apnea. METHODS: This retrospective study enrolled 75 patients (45 NPOSA and 30 POSA) who underwent polysomnography (PSG) and computed tomography (CT). The differences in, and relationships of, the PSG values and CT data between POSA and NPOSA were analyzed. RESULTS: Significant (p < 0.05) differences between the two groups were found in the apnea/hypopnea index (AHI), lateral-AHI (L-AHI), soft palate length (SPL), cross-sectional palatopharyngeal area, and the coronal diameter (CD) of the palatopharyngeal area at the narrowest part of the glossopharynx, which were all higher in POSA, except for SPL, AHI, and L-AHI. L-AHI was correlated with the cross-sectional area (r = - 0.306, p = 0.008) and CD (r = - 0.398, p < 0.001) of the palatopharyngeal area, the cross sectional area (r = - 0.241, p = 0.038) and CD (r = - 0.297, p = 0.010) of the narrowest level of the glossopharynx, the CD of the glossopharynx (r = 0.284, p = 0.013), body mass index (BMI, r = 0.273, p = 0.018), SPL (r = 0.284, p = 0.014), and vallecula-tip of tongue (r = 0.250, p = 0.030). The SPL and CD at the narrowest part of the glossopharynx were included in the simplified screening model. CONCLUSIONS: In NPOSA, the CD of the upper airway was smaller, and the soft palate was longer, than in POSA. These differences may play significant roles in explaining the main differences between NPOSA and POSA. PMID- 29043112 TI - Tumor-infiltrating CD8+ lymphocytes predict different clinical outcomes in organ- and non-organ-confined urothelial carcinoma of the bladder following radical cystectomy. AB - Tumor-infiltrating lymphocytes (TILs) are associated with better clinical outcomes in many tumors. TILs represent a cell-mediated immune response against the carcinoma. CD8+ TILs are a crucial component of cell-mediated immunity. The significance of CD8+ TILs has not been reported respectively in organ- and non organ-confined urothelial carcinoma (UC) of the bladder. We explored the prognostic value of CD8+ TILs in the two groups. The presence of CD8+ TILs was assessed by immunohistochemical staining of whole tissue sections from 75 organ and 51 non-organ-confined disease patients with long-term follow-up, and its correlation with clinicopathological features and overall survival (OS) was determined. The CD8+ TIL immunohistochemical staining score was 0 (<1%), 1 (>=1%), 2 (>=5%), or 3 (>=10%) based on the percentage of positively stained cells out of total cells. A patient was considered CD8 negative if the score was 0. There were no associations between CD8+ TILs and age, sex, nuclear grade, and adjuvant or neoadjuvant chemotherapy in organ- and non-organ-confined disease. The presence of CD8+ TILs was seen more frequently in pTa-1 than pT2 stage (p = 0.033) in organ-confined disease. No associations between CD8+ TILs and pT stage, pN stage were found in non-organ-confined disease. CD8+ TILs were associated with better OS (log-rank test, P = 0.036) in non-organ-confined disease, but with poorer OS (log-rank test, P = 0.040) in organ-confined disease by the Kaplan Meier method. In multivariate analysis, CD8+ TILs were an independent favorable prognostic factor in non-organ-confined disease, but were an independent unfavorable prognostic factor in organ-confined disease. These results suggest that CD8+ TILs have clinically significant anti-tumor activity in non-organ confined disease, but may have pro-tumor activity in organ-confined disease. Therefore, we should be cautious if CD8+ TILs are aimed to be exploited in the treatment of bladder cancer. PMID- 29043113 TI - Simultaneous Tracking of Cardiorespiratory Signals for Multiple Persons Using a Machine Vision System With Noise Artifact Removal. AB - Most existing non-contact monitoring systems are limited to detecting physiological signs from a single subject at a time. Still, another challenge facing these systems is that they are prone to noise artifacts resulting from motion of subjects, facial expressions, talking, skin tone, and illumination variations. This paper proposes an efficient non-contact system based on a digital camera to track the cardiorespiratory signal from a number of subjects (up to six persons) at the same time with a new method for noise artifact removal. The proposed system relied on the physiological and physical effects as a result of the activity of the cardiovascular and respiratory systems, such as skin color changes and head motion. Since these effects are imperceptible to the human eye and highly affected by the noise variations, we used advanced signal and video processing techniques, including developing video magnification technique, complete ensemble empirical mode decomposition with adaptive noise, and canonical correlation analysis to extract the heart rate and respiratory rate from multiple subjects under the noise artifact assumptions. The experimental results of the proposed system had a significant correlation (Pearson's correlation coefficient = 0.9994, Spearman correlation coefficient = 0.9987, and root mean square error = 0.32) when compared with the conventional contact methods (pulse oximeter and piezorespiratory belt), which makes the proposed system a promising candidate for novel applications. PMID- 29043114 TI - Expression of STK11 gene and its promoter activity in MCF control and cancer cells. AB - Serine/threonine kinase gene (STK11) is identified as tumor suppressor gene whose mutation can lead to Peutz-Jeghers syndrome (PJS). STK11 is emerging as a multifunctional protein, it activates 14 different AMP-activated protein kinase (AMPK) family members, important in the regulation of cell polarity, cell cycle arrest, energy and hemostasis. Present study was designed to evaluate STK11 mRNA expression in MCF-7 cancer and MCF-10 normal breast cells lines. mRNA expression was studied by real-time PCR. Further, human STK11 promoter construct was fused to a luciferase reporter and transfected into both MCF-7 and MCF-10 cells to identify the promoter activity in these cells. STK11 mRNA was found significantly higher in MCF-7 compared to MCF-10 cells (p value < 0.0005) indicating its role in the onset of breast cancer. Interestingly, it was found that the promoter activity of STK11 gene in MCF-7 cells was also significantly higher when compared to MCF-10 cells (p value < 0.005). Positive correlation was observed in promoter activity and gene expression (p = 0.048, r2 = 0.587). This study for the first time relates the altered STK11 gene expression in breast cancer cells with altered promoter activity. The present finding may shed light on the new therapeutic approaches against breast cancer by targeting gene or its promoter. PMID- 29043115 TI - Regulation of different polyketide biosynthesis by green light in an endophytic fungus of mangrove leaf. AB - Light is an important environmental signal for many organisms. The light response reports of fungi usually focus on blue light and red light. Although the green light sensor has also been found in several fungi, the knowledge of the green light response in fungi is very limited. Halorosellinia sp. (No. 1403) is a light sensitive endophytic fungus of mangrove leaf. In this study, we explored the specific effects of monochromatic blue light, red light, and green light on polyketides biosynthesis in Halorosellinia sp. (No. 1403), respectively. The major polyketides produced in Halorosellinia sp. (No. 1403) are octaketides (1403C and 1403R) and heptaketide (griseofulvin). All monochromatic light enhanced octaketide biosynthesis and inhibited heptaketide biosynthesis to some extent compared with the dark condition. Most prominently, the total production of octaketides was increased by 76%, and the production of heptaketide was decreased by 73% under green light in bioreactor. Therefore, green light can not only influence the secondary metabolism in fungi, but also it can influence different biosynthetic pathways in different ways. We speculate that the significant effect of green light on mangrove leaf endophytic fungus Halorosellinia sp. (No. 1403) may be a kind of environmental adaptation to plant photosynthesis. PMID- 29043116 TI - A rapid and efficient DNA extraction method suitable for marine macroalgae. AB - Macroalgae are a diverse group of organisms. Marine macroalgae, in particular, have numerous medicinal and industrial applications. Molecular studies of macroalgae require suitable concentrations of DNA free of contaminants. At present, numerous protocols exist for DNA extraction from macroalgae. However, they are either time consuming, expensive or work only with few species. The method described in this study is rapid and efficient and applicable to different types of marine macroalgae. This method yields an average of 3.85 ug of DNA per 50 mg of algal tissue, with an average purity of 1.88. The isolated DNA was suitable for PCR amplification of universal plastid region of macroalgae. PMID- 29043117 TI - An intra-abdominal abscess or "rind" as a consequence of peritoneal dialysis associated pseudomonas peritonitis. AB - BACKGROUND: Abdominal CT imaging has defined characteristics of two pathological entities specific to peritoneal dialysis patients. Both are associated with serious peritoneal complications. One is comprised of ascites accompanied by septation and loculated fluid pockets as a complication of bacterial peritonitis. The other is the syndrome of encapsulating peritoneal sclerosis. We present the evolution of a single, thick-walled fluid collection as a consequence of relapsing Pseudomonas aeruginosa peritonitis. The entity had distinctive features differing from either of the two previously described entities, and to our knowledge, has not been described previously. Our patient's radiological evolution resembled the formation of a pleural or peritoneal "rind." CONCLUSION: Peritonitis, as a result of Pseudomonas aeruginosa, may lead to "rind" formation as described with empyemas and is distinct from previously described intra abdominal pathologies in peritoneal dialysis patients. PMID- 29043118 TI - Acute pyelonephritis including an overlooked renal cell carcinoma. AB - Hidden renal mass is not evident during severe inflammation such as acute pyelonephritis, pyonephrosis, or renal abscess. Deceptive inflammatory presentations that can occur in aggressive synchronous renal malignancies can significantly delay the diagnosis of cancer. Herein, we report a case of acute pyelonephritis involving overlooked renal cell carcinoma. PMID- 29043119 TI - Thromboembolism in renal transplant artery due to atrial fibrillation. AB - BACKGROUND: Central and peripheral arterial thromboembolisms are well known complications of atrial fibrillation. We report the first case of thromboembolism in a renal transplant due to atrial fibrillation after changing anticoagulation treatment. CASE PRESENTATION: A 79-year-old woman who had undergone kidney transplantation in 2001 presented herself with abdominal pain and oliguria. Serum creatinine had been stable (130 - 150 umol/l) since transplantation, and, because of atrial fibrillation, the patient received oral anticoagulation treatment for many years until it was switched to aspirin 100 mg due to a cholecystectomy in 2012. Three weeks thereafter is when the patient was admitted to our unit. In a computed tomography scan of the abdomen, multiple renal infarcts were detected. The thromboembolism resulted in a complete loss of transplant function. As the patient remained anuric, the transplant was declared to be lost, immunosuppression was reduced, and renal replacement therapy was commenced over a central catheter. However, the patient died the next day. CONCLUSION: Our case highlights the fact that changing anticoagulation treatment should be performed carefully and can be detrimental. The location of thromboembolism in renal transplant artery makes this case unique and has not ever been described thus far. As renal transplantation and risk factors for thromboembolism i.e., atrial fibrillation are increasing, embolization in renal transplant artery is a potential reason for abdominal pain and anuria; physicians should take this into consideration when treating transplanted patients. PMID- 29043120 TI - Is there a pathogenic association between Fabry's disease and IgA nephropathy? AB - Several cases of concurrent Fabry's disease and IgA nephropathy have been reported, but the pathogenic association between these two diseases remains unclear. This is a report on the case of a girl with severe IgA nephropathy who was subsequently diagnosed with subclinical Fabry's disease. An 11-year-old girl was admitted to our hospital with massive proteinuria and hematuria detected by urinary screening. An initial renal biopsy revealed severe IgA nephropathy with diffuse mesangial proliferation. She was treated with intravenous methylprednisolone pulses followed by 2 years of oral steroids. The treatment improved both the urinary abnormalities and the second renal biopsy findings. At the age of 15 years, mild proteinuria prompted us to perform a third renal biopsy, and histology revealed minor glomerular abnormalities. In addition, numerous myelin-like bodies were detected in podocytes by electron microscopy. The histological findings combined with the low level of alpha-galactosidase A activity led to the diagnosis of concomitant Fabry's disease with IgA nephropathy. Our experience suggests that the initial massive proteinuria was not due to Fabry's disease, but was rather a manifestation of coincidental IgA nephropathy. We speculate that the coexistence of IgA nephropathy and Fabry's disease occurred by chance. PMID- 29043121 TI - C20209T prothrombin gene mutation associated deep venous thrombosis in a hemodialysis patient. AB - Venous thromboembolism (VTE) represents the formation of a blood clot in one of the deep veins of human body. The significant morbidity and mortality rates associated with VTE have spurred increasing investigations seeking to identify causative factors for this complex condition. While the most frequent causes of an inherited hypercoagulable state are the Factor V Leiden mutation and the prothrombin gene mutation, polymerase chain reaction (PCR) analysis has helped to identify other rare causes of inherited VTE. We report a case of a recurrent deep venous thrombosis in an end-stage renal disease patient. All laboratory tests for hypercoagulable states were normal. However, PCR analysis detected a rare polymorphism of prothrombin gene mutation at position C20209T, instead of G20210A. The patient was treated successfully with a high dose of warfarin to maintain adequate anti-coagulation during the 2-year follow-up. PMID- 29043122 TI - Syndrome of inappropriate antidiuretic hormone secretion associated with prolonged keterolac use. AB - Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used analgesics. Although rare, clinicians need to keep in mind that their use may precipitate hyponatremia and syndrome of inappropriate antidiuretic hormone (SIADH), especially in high-risk patients with multiple comorbidities. In the kidneys, prostaglandins attenuate the water retention effect of antidiuretic hormone. NSAIDs cause a decrease in prostaglandins in the kidney and therefore the effect of ADH is potentiated. We report a case of SIADH that was associated with keterolac in a 65-year-old male. SIADH has not previously been reported with keterolac, a strong NSAID with comparable analgesic effect as morphine and meperidine. Keterolac may have unique properties different from other NSAIDS which may predispose to the development of hyponatremia. In our case, prolonged use of keterolac may have contributed to the development of SIADH and caution is needed when keterolac is used for prolonged duration. A review of the literature regarding development of SIADH and hyponatremia in the setting of NSAIDs is also presented. PMID- 29043123 TI - Management of streptococcal pneumoniae-induced hemolytic uremic syndrome: a case report. AB - Hemolytic uremic syndrome (HUS) secondary to Streptococcus pneumoniae infections (pHUS) has been well reported in the literature and accounts for roughly 5% of all the cases of HUS. However, this condition is likely under-diagnosed and the incidence is believed to be increasing. Given this increase in incidence of pHUS, it is important to have an understanding of the optimal means to manage the disease. We report a case of a 2-year-old male with pneumonia, acute kidney injury (AKI), microangiopathic hemolytic anemia (MAHA), and thrombocytopenia, diagnosed with pHUS and successfully treated with antibiotics, washed red blood cell (RBC) transfusions, plasma exchange (PE) with 5% albumin replacement, steroids, and hemodialysis. The response seen in our patient adds to the current literature and further supports the use of PE with albumin in patients with pHUS. PMID- 29043124 TI - Use of hemodialysis for the treatment of intracerebral hemorrhage in patients on dabigatran with normal renal function. AB - Dabigatran is a direct thrombin inhibitor which is approved by the Food and Drug Administration (FDA) for prevention of embolic stroke in patients with atrial fibrillation. Dabigatran has been shown to be non- inferior to warfarin in preventing stroke in patients with atrial fibrillation [1, 6]. The rate of major bleeding in patients taking dabigatran is also similar to that seen in patients on warfarin [1]. Unlike warfarin, there is currently no antidote available for reversal of anticoagulant effects of dabigatran [2, 3]. Dabigatran is excreted renally and accumulates in patients with acute kidney injury (AKI). Hemodialysis has been reported to increase clearance of dabigatran in patients with acute kidney injury and life-threatening bleeding [4, 5]. We present two cases of dabigatran-associated intracranial hemorrhage where hemodialysis was used to accelerate clearance of dabigatran from the blood in patients with normal renal function. PMID- 29043125 TI - Kidney biopsy for renal tubular acidosis: when tissue diagnosis makes a difference. AB - Renal tubular acidosis (RTA) is a disorder with variable presentations and oftentimes a nebulous underlying primary diagnosis. We describe a rare cause of RTA as an unusual complication of proton pump inhibitor (PPI) therapy. We report a case of a 33-year-old male with history of hypertension, acid reflux, allergic rhinitis, and low testosterone admitted with complaints of fatigue, weight loss, and unexplained acidosis for ~ 2 months. His medications prior to admission included losartan, omeprazole, potassium chloride, sildenafil, and testosterone propionate injections. His physical exam was unremarkable with a blood pressure of 120/80 mmHg. Initial lab work showed a nonanion gap metabolic acidosis with serum bicarbonate level of 16 mM/L and potassium 3 mM/L. Urine studies showed urine pH of 6.5 and a positive urine anion gap. The serum creatinine was within normal range(1.13 mg/dL). He required massive doses of bicarbonate and potassium supplementation with minimal improvement of serum chemistries achieved. The cause of apparent distal RTA remained elusive despite extensive blood, urine, and imaging testing. Ultimately a renal biopsy was obtained showing mild to moderate tubule-interstitial inflammation with 5% fibrosis. PPI therapy (omeprazole) was stopped, and he was started on prednisone 60 mg per day. Two weeks later, his RTA findings resolved, and he no longer required bicarbonate and potassium supplementation. Our case highlights the importance of recognizing a unique complication of RTA following PPI therapy. It also underscores the possible need for considering a kidney biopsy in the setting of nondiagnostic laboratory work up to uncover the underlying etiology of RTA and suspected allergic interstitial nephritis (AIN). PMID- 29043126 TI - Page kidney of renal allograft following blunt trauma. AB - We report a case of the Page kidney phenomenon which occurred in a patient with a renal allograft following blunt trauma. The injury occurred following an accidental trip resulting in a trivial fall. The patient presented with acute graft dysfunction with no localizing symptoms or signs. His renal function deteriorated further and he also became hypertensive. Serial ultrasounds showed an increase in the size of perinephric hematoma and evidence of renal compression. Prompt surgical evacuation of the hematoma was performed and renal function returned to baseline. Serial ultrasound examinations and timely surgical intervention can prevent graft loss in this unusual situation. PMID- 29043127 TI - Successful eculizumab treatment of recurrent postpartum atypical hemolytic uremic syndrome after kidney transplantation. AB - Postpartum atypical hemolytic uremic syndrome (aHUS) is a rare disorder associated with poor maternal and fetal outcomes. We describe a case of severe postpartum aHUS with recurrence in a kidney allograft after a second pregnancy. The patient had initially presented age 28 years with aHUS that developed after her first delivery. In spite of treatment with plasma exchange, she developed end stage renal disease (ESRD) requiring years of hemodialysis before receiving a kidney transplant from a living unrelated donor. Two years later, she became pregnant again and at 26 weeks gestation she presented to our hospital with hypertension and proteinuria. Within 48 hours of delivery she developed hemolytic anemia, thrombocytopenia, and oliguric acute kidney injury (AKI) culminating in the need for dialysis. There was no response to therapeutic plasma exchange (TPE). However, treatment with eculizumab led to prompt, successful resolution of hemolysis, thrombocytopenia, and AKI. Three months after therapy was stopped, her disease relapsed causing renal failure again requiring dialysis. At that time, an allograft biopsy revealed severe thrombotic microangiopathy (TMA). Eculizumab was resumed without plasma exchange leading to resolution of aHUS and return of kidney function. Now, her baby is nearly 2 years old. She remains on maintenance eculizumab therapy 1,200 mg every 2 weeks without dialysis. She has excellent renal function with creatinine of 1.2 mg/dL, eGFR 52 mL/min/1.73 m, and proteinuria 0.35 g/day. She will likely be on eculizumab for the remainder of her life. PMID- 29043128 TI - Rapid progression to end-stage renal disease in a child with a sporadic ACTN4 mutation. AB - Mutations of ACTN4 cause an autosomal dominant form of focal segmental glomerulosclerosis (FSGS). Presentation usually occurs in the teenage years or later with symptoms of mild proteinuria and slowly progressive renal dysfunction leading to end-stage renal disease (ESRD). We report a 5-year-old female patient who was diagnosed with nephrotic syndrome and did not respond to 6 weeks of oral glucocorticoid therapy. Renal biopsy showed a collapsing variant of FSGS and genetic studies revealed a heterozygous disease-causing mutation in the ACTN4 gene (c.784C>T, p.Ser262Phe). No mutations were found in the NPHS2, TRPC6, and INF2 genes, nor did her parents have any mutations for FSGS. She developed ESRD 6 months after presentation. Although a disease-causing ACTN4 mutation was identified, the contribution of additional polymorphisms in other genes is not known. Such additional polymorphisms may represent yet unidentified epigenetic factors that contributed to the aggressive nature of this child's disease progression. A literature review has revealed only two similar case reports. PMID- 29043129 TI - Atypical case of AL amyloidosis with urinary erythrocyte casts. AB - We present the case of a 73-year-old man who developed an acute, severe febrile illness with multiorgan dysfunction, featuring renal failure, nephrotic-range proteinuria, microhematuria, and a skin rash. Numerous erythrocyte casts were found on urine microscopy. Typically, the finding of urinary erythrocyte casts indicates the presence of an underlying glomerular inflammatory disease. However, on renal biopsy, only amyloid light-chain (AL) amyloidosis and tubular injury were the predominant findings with no signs of glomerular or vascular inflammation. Photomicrographs of urinary sediment as well as renal biopsy histopathology of the presented case are shown. The unusual combination of findings, is then discussed in light of the existing literature on renal amyloidosis as well as erythrocyte casts in conditions other than glomerulonephritis. PMID- 29043130 TI - Anti-GBM disease after nephrectomy for xanthogranulomatous pyelonephritis in a patient expressing HLA DR15 major histocompatibility antigens: a case report. AB - Antiglomerular basement membrane (anti-GBM) antibody disease is uncommon in the pediatric population. There are no cases in the literature describing the development of anti-GBM disease following XGP or nephrectomy. We report the case of a 7-year-old boy with no past history of urological illness, treated with antimicrobials and nephrectomy for diffuse, unilateral xanthogranulomatous pyelonephritis (XGP). Renal function and ultrasound scan of the contralateral kidney postoperatively were normal. Three months later, the child represented in acute renal failure with rapidly progressive glomerulonephritis requiring hemodialysis. Renal biopsy showed severe crescentic glomerulonephritis with 95% of glomeruli demonstrating circumferential cellular crescents. Strong linear IgG staining of the glomerular basement membranes was present, in keeping with anti GBM disease. Circulating anti-GBM antibodies were positive. Treatment with plasma exchange, methylprednisolone, and cyclophosphamide led to normalization of anti GBM antibody titers. Frequency of hemodialysis was reduced as renal function improved, and he is currently independent of dialysis with estimated glomerular filtration rate 20.7 mls/min/1.73 m2. Case studies in the adult literature have reported the development of a rapidly progressive anti-GBM antibody-induced glomerulonephritis following renal surgery where patients expressed HLA DR2/HLA DR15 major histocompatibility (MHC) antigens. Of note, our patient also expresses the HLA DR15 MHC antigen. PMID- 29043132 TI - Antineutrophil cytoplasmic antibody mediated glomerulonephritis associated with levamisole-adulterated cocaine. AB - Levamisole-adulterated cocaine has increased in prevalence over the last decade and is known to be associated with antineutrophil cytoplasmic antibodies (ANCA). Dermatologic manifestations of levamisole exposure, including cutaneous vasculitis, are widely appreciated; less is known about its effects on the kidney. We report two cases of patients with a history of cocaine abuse and levamisole-induced cutaneous vasculitis, who developed acute kidney injury in the setting of elevated ANCA titers. Renal biopsies of both revealed pauci-immune complex glomerulonephritis with diffuse crescentic disease. These cases demonstrate a rare but serious complication of long-term cocaine use. PMID- 29043131 TI - Potential association between membranous nephropathy and sargramostim therapy for pulmonary alveolar proteinosis. AB - We present the case of a 43-year-old woman with a diagnosis of pulmonary alveolar proteinosis, on chronic treatment with sargramostim, a recombinant granulocyte macrophage colony-stimulating factor, who presented with the nephrotic syndrome secondary to biopsy-proven membranous nephropathy. We discuss potential underlying mechanisms, including speculated effects of sargramostim on mesangial cells and the kidney resident macrophages, and review the existing literature on the potential association between these two disorders. PMID- 29043133 TI - Lysozyme amyloidosis - a case report and review of the literature. AB - Lysozyme amyloidosis is an exceedingly rare hereditary autosomal dominant amyloidosis, which is characterized by the precipitation of lysozyme protein within the body, leading to multi-organ dysfunction. Herein, we present the case of a U.S. family affected by lysozyme amyloidosis. In particular, we report pericardial disease involvement leading to recurrent pericardial effusion, which to our knowledge has not been described yet. To our knowledge, we have also for the first time identified the amyloidogenic component of lysozyme amyloidosis via laser microdissection and mass spectrometry from a bone marrow biopsy. The diagnosis of this disease remains challenging as it can be easily mistaken for primary amyloidosis, which also presents with similar symptoms. Immunohistochemical staining of tissue for specific amyloidogenic proteins allows for an accurate diagnosis and should be performed in all amyloidosis patients in order to spare patients from potentially futile or harmful therapy. The widespread systemic involvement of lysozyme amyloidosis currently provides limited options for treatment, although kidney and/or liver transplantation appear to be promising palliative treatments. Practicing clinicians and researchers need to collect more information about this rare entity to further characterize the behavior of this disease and develop new potential treatment strategies. PMID- 29043134 TI - Cryoglobulinemic membranoproliferative glomerulonephritis associated with mucosa associated lymphoid tissue lymphoma treated with rituximab. AB - Cryoglobulinemia and mucosa-associated lymphoid tissue (MALT) lymphoma are diseases characterized by B-cell dysregulation and overproduction of antibodies. Vasculitis and cutaneous manifestations are common, but renal involvement is rare. A 65-year-old woman with type 1 cryoglobulinemia and MALT lymphomas of the right lacrimal and parotid glands successfully treated by excision and chemoradiotherapy, presented with dyspnea on exertion, edema, and hematuria. Renal biopsy findings revealed type 1 cryoglobulinemic glomerulonephritis. She underwent treatment with high-dose oral prednisone and intravenous rituximab with subsequent return of creatinine to baseline levels. To our knowledge, this is the first report of a patient in whom type 1 cryoglobulinemia, multiple MALT lymphomas, and MPGN with IgM cryoglobulin deposits coexist. Evidence for rituximab is sparse with widely varying protocols and mixed results. There is a need for high quality evidence in the treatment of these conditions. PMID- 29043135 TI - Crescentic glomerulonephritis with dual positive anti-GBM and C-ANCA/PR3 antibodies. AB - Antiglomerular basement membrane (anti-GBM) antibodies are more often accompanied by myeloperoxidase antineutrophil cytoplasmic antibody (MPO-ANCA) than by proteinase 3 antineutrophil cytoplasmic antibody (PR3-ANCA). Both disease processes can affect the kidneys and/or the lungs. Patients with dual positive disease may have an atypical presentation which may delay diagnosis and treatment. Here we report a case of crescentic glomerulonephritis associated with positive PR3-ANCA and anti-GBM antibodies who underwent both lung and kidney biopsies. PMID- 29043136 TI - Collapsing glomerulopathy associated with hemophagocytic syndrome in a patient with NK/T cell lymphoma. AB - Hemophagocytic syndrome (HPS) is a rare condition caused by dysregulated activation of the immune system leading to infiltration of bone marrow and organs by nonmalignant macrophages that phagocytose blood cells. Primary HPS is caused by inherited immune dysregulation whereas secondary HPS is triggered by neoplastic, infectious or autoimmune diseases. Clinically, the syndrome presents with continuous high-grade fever in association with multi-organ involvement. Few data are available regarding renal manifestations of HPS. We report a 60-year-old patient with NK/T cell nasopharyngeal extranodal lymphoma who presented with acute kidney injury and nephrotic range proteinuria in association with fever and pancytopenia. A kidney biopsy was consistent with collapsing glomerulopathy. A final diagnosis of HPS was made on the basis of clinical, laboratory, and bone marrow biopsy findings in accordance with established diagnostic criteria. Steroid therapy was initiated. However, the patient failed to recover his renal function and remained hemodialysis-dependent. Key diagnostic and therapeutic challenges and strategies used to overcome those challenges are discussed. PMID- 29043137 TI - Tenofovir and kidney transplantation: case report. AB - BACKGROUND: Hepatitis B viral infection (HBV) has been regarded as a contraindication for kidney transplantation because of the high risk of viral activation induced by immunosuppressive therapy. Anti-retroviral drugs have changed the prognosis of patients with hepatitis B viral infection (HBV+) who are candidates for renal transplant; indeed, therapy with antiretroviral drugs may ensure lower rates of morbidity and mortality compared to traditional therapies. Entecavir is the first-line antiviral therapy recommended for the treatment of HBV+ kidney-transplanted patients. In case of resistance to entecavir, tenofovir may be an alternative drug, either alone or in combination with entecavir. However, the best strategy of treatment is still unknown. In this case-report, a HBV+ kidney-transplanted patient who presented resistance to entecavir was initially treated by associating tenofovir to entecavir and with tenofovir alone afterward. This strategy induced complete remission of viral replication. CASE PRESENTATION: In a HBV+ kidney-transplanted patient under monotherapy with entecavir, HBV flare (HBV DNA > 170.000 * 103 UI/mL, HBeAg+, HbeAb-) occurred 9 months after transplantation; at that time, blood chemistry highlighted: creatinine 1.46 mg/dL, blood urea 65 mg/dL, e-GFR 50 mL/min, proteinuria 300 mg/24 h, calciuria 2,12 mmol/24 h, phosphaturia 0.56 g/24 h, vitamin D 11.5 ng/mL, PTH 130 pg/mL, calcemia 2.3 mmol/L, and phosphoremia 2 mg/dL. Liver elastometry (FibroScan) showed moderate fibrosis. Tenofovir was associated to entecavir. Three months after the combination therapy, reduction in HBV DNA replication (351 * 103 UI/mL) was obtained. Creatinine and e-GFR were 1.48 mg/dL and 52 mL/min, respectively. At this point, entecavir was discontinued. After 13 months of tenofovir monotherapy, complete remission of viral replication was achieved but renal function deteriorated and proteinuria increased. CONCLUSION: This case-report indicates that tenofovir is effective in reducing viral replication of hepatitis B virus in a kidney-transplanted patient who presented resistance to previous treatment with entecavir. However, it should be taken into account that tenofovir could affect renal function. PMID- 29043138 TI - Coexistence of atypical hemolytic uremic syndrome and crescentic IgA nephropathy treated with eculizumab: a case report. AB - Rapid progression to end-stage renal disease has been reported in a minority of patients with immunoglobulin A (IgA) nephropathy. In particular, crescentic IgA nephropathy has a poor prognosis in patients with a higher initial serum creatinine level. The complement system plays an important role in the pathogenesis of crescentic IgA nephropathy. Atypical hemolytic uremic syndrome (aHUS), which is characterized by thrombotic microangiopathy, is distinct from Shigatoxin-induced HUS and thrombotic thrombocytopenic purpura. aHUS is associated with dysregulation of the alternative complement system. Eculizumab, an anti-C5 antibody, is effective in limiting complement activation in patients with paroxysmal nocturnal hemoglobinuria, aHUS, or refractory IgA nephropathy in some case reports. We herein report the case of a 42-year-old man with acute kidney injury (AKI) clinically and histologically diagnosed with the coexistence of aHUS and crescentic IgA nephropathy. The patient was treated with steroids, plasmapheresis, and hemodialysis; however, eculizumab treatment was initiated on hospital day 21 due to resistance to and dependence on the conventional aggressive therapy. Clinical remission of aHUS was achieved on day 70, but the renal function failed to recover from dialysis dependence. To the best of our knowledge, this is the first report showing the clinical course of a refractory patient with the coexistence of aHUS and crescentic IgA nephropathy treated with eculizumab. This case highlights the clinical importance of early diagnosis and appropriate initiation of eculizumab for the treatment of this type of AKI. PMID- 29043139 TI - Primary renal lymphoma: an unusual finding following radical nephrectomy. AB - Secondary kidney involvement by disseminated non-Hodgkin's lymphoma (NHL) is quite common and is estimated to approach 30 - 60% in NHL patients. However, primary renal lymphoma is exceedingly rare and estimated to make up less than 1% of all kidney masses. We report a case of primary renal NHL presenting with profound hypercalcemia and renal failure recalcitrant to medical management, ultimately treated with urgent radical nephrectomy. To our knowledge, this is the first report of primary renal lymphoma presenting in this acute fashion. PMID- 29043140 TI - Warfarin-related nephropathy in a patient with renal pelvic cancer. AB - An 83-year-old Japanese man had a history of chronic heart failure due to bradycardia-tachycardia syndrome. He was admitted to our hospital because of macrohematuria and acute kidney injury (AKI), which were detected by an urologist at an outpatient visit. He had a history of recurrent macrohematuria and transurethral resection of bladder tumors twice in the preceding 2 years. He had been on warfarin for 12 years, with a stable international normalized ratio (INR) that was usually less than 2.1. Urinalysis revealed numerous red blood cells (RBCs) and mild proteinuria without RBC casts. His serum creatinine level was elevated to 2.41 mg/dL from 0.96 mg/dL at 3 weeks before admission. INR was 1.44. Hydronephrosis was not observed. Ureteroscopy detected invasive urothelial carcinoma of the renal pelvis, and right laparoscopic nephroureterectomy was performed at 41 days after diagnosis of AKI. The background renal parenchyma displayed tubular obstruction by red blood cell casts and acute tubular injury, which were changes compatible with warfarin-related nephropathy (WRN). Warfarin was discontinued, and the serum creatinine level recovered to 1.66 mg/dL after 3 months. In the present patient with nephrosclerosis, WRN occurred at a therapeutic INR level after 12 years of uneventful warfarin therapy, and the coexisting urothelial malignancy was a unique feature. PMID- 29043141 TI - Antineutrophil cytoplasmic antibody-positive pauci-immune glomerulonephritis associated with mantle cell lymphoma. AB - Renal involvement in non-Hodgkin lymphoma, especially mantle cell lymphoma (MCL) is rare. A 77-year-old man presented with acute kidney injury (AKI), which rapidly progressed to dialysis dependence. Kidney biopsy revealed patchy B-cell lymphocytic aggregates in the interstitium, which were positive for cyclin D1, consistent with atypical CD5-negative MCL as confirmed by the detection of translocation t(11;14) by FISH. Crescents were noted in 3 of 26 glomeruli; while PR-3 antineutrophil cytoplasmic antibody (ANCA) positivity and negative immunofluorescence suggested an additional pauci-immune (rapidly progressive) glomerulonephritis pattern of injury. Patient received chemotherapy (cyclophosphamide, vincristine, and prednisone), which improved his renal function and allowed for discontinuation of hemodialysis. However, he died from pulmonary hemorrhage 8 months after initial presentation. This is the first reported case of a patient with coexistence of renal MCL infiltration and ANCA positive pauci-immune glomerulonephritis. PMID- 29043142 TI - Costimulation pathway blockade in kidney transplant recipients with de-novo rheumatoid arthritis. AB - The best approach to treatment of de-novo rheumatoid arthritis in solid organ transplant recipients on typical immunosuppression is not well established. The use of biologics targeting specific cell types, cytokines, and immunological pathways has been gaining interest in the treatment of both, auto- and alloimmunity. We present a case of de-novo rheumatoid arthritis in a kidney transplant recipient 10 years post-transplant while receiving cyclosporine, mycophenolate mofetil, and also prednisone. Initial presentation included features of polymyalgia rheumatica and nephrotic range proteinuria. Kidney biopsy showed membranous nephropathy. The patient was initially treated with methotrexate, while mycophenolate mofetil was discontinued. Clinical symptoms improved, but creatinine significantly increased, which led to discontinuation of methotrexate and mycophenolate mofetil was restarted. The kidney function improved, but the patient experienced a flare of rheumatoid arthritis. Costimulatory blocker, abatacept, was initiated and cyclosporine was gradually tapered off. Graft function remained stable for a follow-up period of 7 years. Joint pain, weakness, and stiffness resolved. Follow-up plain film radiographs at 5 years post initial presentation showed no new joint erosions in hands or feet. Costimulatory blockers may broaden the therapeutic choices of transplant recipients with de-novo autoimmune diseases. PMID- 29043143 TI - Focal segmental glomerulosclerosis associated with mitochondrial disease. AB - Primary mitochondrial diseases (MD) are complex, heterogeneous inherited diseases caused by mutations in either the mitochondrial or nuclear DNA. Glomerular diseases in MD have been reported with tRNA mutation m.3243A>G causing a syndrome of mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS). We describe here a case of focal segmental glomerulosclerosis (FSGS) associated with a new tRNA mutation site. A 34-year-old man with a history of living related kidney transplantation, diabetes, hearing loss, and developmental delay presented to the outpatient clinic with complaints of new behavioral difficulties, worsening symptoms, and brain involvement on imaging. Physical examination was remarkable for difficulty hearing, a pattern of dysarthric speech, and cerebellar gait. Laboratory investigations including lactate levels were unremarkable. Based on this set of clinical circumstances, concern for an underlying genetic abnormality was raised. Multiple metabolic tests were unremarkable. Whole exome sequencing revealed a mitochondrial MT-TW tRNA change at position m.5538G>A. Genotype-phenotype correlations are consistent with this tRNA mutation as a cause of his symptoms. To the best of our knowledge, this is the first case describing FSGS-associated MD caused by an m.5538 G>A mutation. Consideration of an underlying MD should be made in patients presenting with deafness, neurologic changes, diabetes, and renal failure. PMID- 29043144 TI - Plasmapheresis for treatment of immune complex-mediated glomerulonephritis in infective endocarditis: a case report and literature review. AB - We report the case of a 57-year-old man who presented with subacute bacterial endocarditis secondary to Streptococcus mutans complicated by biopsy-proven immune complex-mediated glomerulonephritis (ICGN). Despite initial treatment with antibiotics and a short course of corticosteroids, the kidney function further deteriorated, and plasmapheresis was introduced as third-line therapy to remove circulating immune complexes. Following 7 treatment sessions, the patient recovered kidney function. We discuss the potential merit of plasmapheresis for patients with subacute bacterial endocarditis who develop ICGN. PMID- 29043145 TI - ANCA-associated pauci-immune glomerulonephritis in a patient with bacterial endocarditis: a challenging clinical dilemma. AB - PURPOSE: We report the case of a 59-year-old man with chronic hepatitis B and C infection presenting with acute kidney injury and enterococcus faecalis-infective endocarditis (IE). An elevated proteinase-3 (PR3)-ANCA and pauci-immune glomerulonephritis (GN) on renal biopsy were discovered, corresponding to ANCA mediated GN. We conducted a literature review to assess the role of ANCA in IE and treatment implications. METHODS: On systematic review of the literature, we found five previous cases whereby IE caused by streptococcus and bartonella species were related to ANCA vasculitis-associated GN. RESULTS: Most reports of IE-related GN are mediated by immune complex deposition and resolve following microbial clearance. Of the 5 cases of ANCA GN in the setting of IE, all had markedly elevated levels of PR3-ANCA with either a subacute or chronic course of infection. Patients were treated with a combination of steroids and cyclophosphamide (2/5), steroids and antibiotics alone (1/5), or with valvular replacement (2/5). Renal function was recovered in 4/5 patients. CONCLUSION: Infection is a major etiologic player in the formation of ANCA; however, the role of PR3-ANCA in IE remains unclear. Kidney biopsy is essential in differentiating IE-related GN due to infection and immune complex deposition versus ANCA associated vasculitis. A paucity of reports on the development of GN in IE associated ANCA vasculitis exists, highlighting the rarity of our case and lack of clear therapeutic strategies in a patient with active infection requiring immunosuppression. In this case, the patient's chronic hepatitis B and C coinfection presented a unique challenge. PMID- 29043146 TI - Calciphylaxis in a nondialysis patient treated with sodium thiosulfate and high dose of oxygen. AB - BACKGROUND: Calciphylaxis in a nondialysis patient is a rare condition and is characterized by calcific deposition in tissue. We present a case of calciphylaxis in a nondialysis patient who was diagnosed by clinical presentation and skin biopsy and was treated with sodium thiosulfate with improvement of skin lesions. CASE: A 43-year-old female with type 2 diabetes and atrial fibrillation taking oral anticoagulation medication presented with reddish drainage from the right buttock. On physical examination, a large perirectal abscess overlying necrosis was found. She also developed acute kidney injury with creatinine of 3.7 mg/dL at peak from 0.8 mg/dL at baseline. She received antibiotics intravenously and wound debridement. During hospitalization, she developed areas of numerous painful erythematous lesions with central dusky necrosis on bilateral lower extremities. Punch biopsy was done, which initially revealed small-vessel vasculitis. However, those lesions did not respond to steroid therapy. A second biopsy was done showing extensive fat necrosis and medial calcification of vessel walls consistent with calciphylaxis. She was treated with high-flow oxygen and sodium thiosulfate intralesionally and intravenously for 6 months. The lesions remarkably reduced in size and were less painful on follow-up. CONCLUSION: High dose oxygen and sodium thiosulfate could potentially be effective treatments for calciphylaxis in nondialysis patients. PMID- 29043147 TI - A case report of paraproteinemia-associated pauci-immune glomerulonephritis - a new form of monoclonal gammopathy of renal significance? AB - BACKGROUND: Renal disease associated with paraproteinemias is classically predicated upon pathologic paraprotein deposition in the kidney. However, growing evidence suggests that paraproteins may be able to systemically activate complement or neutrophils to drive renal damage. This may provide an alternative pathologic mechanism for renal injury in rare cases. CASE REPORT: We report a case of a patient with crescentic pauci-immune glomerulonephritis presenting with rapidly progressive renal failure, polyarthropathy, and a purpuric rash in association with a monoclonal immunoglobulin G kappa-light-chain producing multiple myeloma. Serum anti-neutrophil cytoplasmic antibodies were not detected. Kidney biopsy, including with Pronase digestion, did not reveal pathologic paraprotein deposition. Two previously published similar case reports are also discussed. CONCLUSION: We propose a novel pathologic mechanism involving monoclonal proteins as a trigger for pauci-immune glomerulonephritis, potentially via complement dysregulation and/or neutrophil activation. This requires further epidemiologic and mechanistic study. PMID- 29043148 TI - Membranoproliferative glomerulonephritis associated with Rosai-Dorfman disease. AB - Rosai-Dorfman disease is also known as sinus histiocytosis with massive lymphadenopathy. Extranodal Rosai-Dorfman disease has been reported in ~ 43% of cases; the most frequent extranodal sites - skin, soft tissue, bone, respiratory tract, and eye - are usually involved in association with lymphadenopathy. Lack of lymph node involvement is rare, especially when patients manifest renal disease. Here, we describe a patient who developed membranoproliferative glomerulonephritis when lymphadenopathy was absent. During follow-up for sinus histiocytosis, a 7-year-old Japanese boy developed proteinuria and hematuria. No renal abnormality was present in ultrasound imaging. Histologic examination of a renal biopsy specimen disclosed moderate mesangial proliferation, focal thickening of glomerular capillary walls, and mesangial interposition. Mononuclear cells infiltrated the interstitium. Immunofluorescence showed intense IgG, C3, and C4 reactivity in portions of the mesangium and glomerular capillary walls. Electron microscopy depicted nodular deposits in mesangial, endocapillary, and subepithelial areas. Immunohistochemistry for S-100 protein, CD68, and lysozyme was positive within the interstitium. CD1a staining was absent. These findings were diagnostic for membranoproliferative glomerulonephritis. Multidrug therapy, including methylprednisolone and mizoribine, improved urinary findings and induced complete remission of both diseases. To the best of our knowledge, this is the first report of Rosai-Dorfman disease complicated by renal disease in the absence of concurrent nodal involvement. Clinicians should be alert to this diagnostic possibility. PMID- 29043149 TI - Pre-B acute lymphoblastic leukemia with t(1;19) in an adult initially presenting as hematuria and bilateral renal enlargement: a case report and literature review. AB - Although pre-B acute lymphoblastic leukemia (ALL) is the most common type of renal leukemic infiltration; the renal infiltration with leukemia cells as the initial manifestation of leukemia is very rare. Translocation (1;19)(q23;p13) is one of the most common chromosomal abnormalities in patients with ALL and is observed in 5 - 6% of children with pre-B ALL. However, the incidence of t(1;19) in adults is lower, not exceeding 3%, and the prognosis of adult patients is usually poor. Herein, we report a 52-year-old female patient with pre-B ALL who initially presented as bilateral renal enlargement. The cytogenetic analysis revealed chromosomal abnormalities including t(1;19). The patient underwent three consecutive courses of chemotherapy with VDLP (vincristine, daunorubicin, L-asp, and prednisolone) and gained a short complete remission. Her kidneys recovered to normal size, and renal function returned to normal level. However, after complete remission for only 3 months, the patient exhibited resistance to consolidation chemotherapy and indicated evidence of marrow relapse. Although we increased the drug dosage and attempted to use a different protocol, she died of severe anemia and hemorrhage almost 10 months after she was first admitted. In conclusion, pre B cell ALL is the most common type of leukemia to present with renal infiltration as the presenting sign. Because of the poor outcome of ALL, some new therapeutic approaches may improve the patients' conditions. PMID- 29043150 TI - Community-acquired pneumonia in the United Kingdom: a call to action. AB - Pneumococcal disease has a high burden in adults in the United Kingdom (UK); however, the total burden is underestimated, principally because most cases of community-acquired pneumonia (CAP) are non-invasive. Research into pneumonia receives poor funding relative to its disease burden (global mortality, disability-adjusted life years, and years lived with disability), ranking just 20 out of 25 for investment in infectious diseases in the UK. The current accuracy of data for establishing incidence rates is questionable, and it is a reflection of the paucity of research that much of the background information available derives from nearly 30 years ago. Given the relationship between CAP and mortality (pneumonia accounts for 29,000 deaths per annum in the UK, and 5-15% of patients hospitalised with CAP die within 30 days of admission), and the increasing threat of antimicrobial resistance associated with inappropriate antibiotic prescribing, such neglect of a highly prevalent problem is concerning. In this Call to Action, we explore the poorly understood burden of CAP in the UK, discuss the importance of an accurate diagnosis and appropriate treatment, and suggest how national collaboration could improve the management of an often life threatening, yet potentially preventable disease. PMID- 29043152 TI - Tattoos as a window to the psyche: How talking about skin art can inform psychiatric practice. AB - Tattooing the skin as a means of personal expression is a ritualized practice that has been around for centuries across many different cultures. Accordingly, the symbolic meaning of tattoos has evolved over time and is highly individualized, from both the internal perspective of the wearer and the external perspective of an observer. Within modern Western societies through the 1970s, tattoos represented a cultural taboo, typically associated with those outside of the mainstream such as soldiers, incarcerated criminals, gang members, and others belonging to marginalized and counter-cultural groups. This paper aims to review the more recent epidemiology of tattoos in Western culture in order to establish that tattooing has become a mainstream phenomenon. We then review psychological and psychiatric aspects of tattoos, with a goal of revising outmoded stigmas about tattooing and helping clinicians working with tattooed patients to facilitate an exploration of the personal meaning of skin art and self-identity. We suggest that as a kind of augmentation of the physical exam, looking at and talking to patients about their tattoos can provide a valuable window into the psyche, informing clinical practice. PMID- 29043153 TI - Developmental psychopathology: A primer for clinical pediatrics. AB - Developmental psychopathology (DP), broadly defined as the scientific discipline that has as its primary goal the integration of developmental science and psychopathology into a coherent approach to explanatory models for psychopathological development, has become the dominant approach in the past decade for understanding the origins of mental disorders among children and adolescents. Hence, it is incumbent upon those working in the field of clinical pediatrics to have at least a basic understanding of its core principles of DP. This article provided such an understanding (i.e., a primer) in an exposition of the four principles that are generally considered be core elements of with examples illustrative of each of the principles. PMID- 29043151 TI - Biobehavioral assessment of the anxiety disorders: Current progress and future directions. AB - It is difficult to accurately assess and differentially diagnose the anxiety disorders. The current system of assessment relies heavily on the subjective measures of client self-report, clinical observation, and clinical judgment. Fortunately, recent technological advances may enable practitioners to utilize objective, biobehavioral measures of assessment in a clinical setting. The current body of literature on two of these biobehavioral tools (eye-tracking and electrocardiogram devices) is promising, but more validation and standardization research is needed to maximize the utility of these devices. Eye-tracking devices are uniquely capable of providing data that can be used to differentially diagnose anxiety disorders from both other commonly comorbid and misdiagnosed disorders. Both eye-tracking and electrocardiogram devices are able to provide change-sensitive assessment information. This objective, real-time feedback can assist clinicians and researchers in assessing treatment efficacy and symptom fluctuation. Recently developed wearable and highly portable electrocardiogram devices, like the wearable fitness and behavior tracking devices used by many consumers, may be particularly suited for providing this feedback to clinicians. Utilizing these biobehavioral devices would supply an objective, dimensional component to the current categorical diagnostic assessment system. We posit that if adequate funding and attention are directed at this area of research, it could revolutionize diagnostic and on-going assessment practices and, in doing so, bring the field of diagnosis out of the 20th century. PMID- 29043154 TI - Taking care of suicidal patients with new technologies and reaching-out means in the post-discharge period. AB - Suicide is a global public health problem with over one million people dying by suicide each year worldwide. Research efforts have focused on developing and testing novel suicide prevention strategies employing recent technological advances. In order to provide a review regarding the role of new technologies (e.g., postcards/letters, text messages, crisis cards, telephone contacts, online interventions) in suicide prevention, we searched PubMed, ScienceDirect, ResearchGate, and Crisis to identify all papers in English from 1977 to 2016. Our results indicated that brief contact interventions show promise in reducing the number of episodes of repeated self-harm and/or suicide attempts following discharge from the Emergency Department or psychiatric units. Innovative methods of contact (e.g., text messages) are easily implemented by clinicians and received by patients in the period of post discharge and have been shown to be beneficial. However, more research employing randomized clinical trials investigating the potential benefits of these novel suicide prevention methods is warranted. Future researchers should continue improving and testing new technologies in the prevention of suicide. PMID- 29043155 TI - Catatonia as a putative nosological entity: A historical sketch. AB - Kahlbaum was the first to propose catatonia as a separate disease following the example of general paresis of the insane, which served as a model for establishing a nosological entity. However, Kahlbaum was uncertain about the nosological position of catatonia and considered it a syndrome, or "a temporary stage or a part of a complex picture of various disease forms". Until recently, the issue of catatonia as a separate diagnostic category was not entertained, mainly due to a misinterpretation of Kraepelin's influential views on catatonia as a subtype of schizophrenia. Kraepelin concluded that patients presenting with persistent catatonic symptoms, which he called "genuine catatonic morbid symptoms", particularly including negativism, bizarre mannerisms, and stereotypes, had a poor prognosis similar to those of paranoid and hebephrenic presentations. Accordingly, catatonia was classified as a subtype of dementia praecox/schizophrenia. Despite Kraepelin's influence on psychiatric nosology throughout the 20th century, there have only been isolated attempts to describe and classify catatonia outside of the Kraepelinian system. For example, the Wernicke-Kleist-Leonhard school attempted to comprehensively elucidate the complexities of psychomotor disturbances associated with major psychoses. However, the Leonhardian categories have never been subjected to the scrutiny of modern investigations. The first three editions of the DSM included the narrow and simplified version of Kraepelin's catatonia concept. Recent developments in catatonia research are reflected in DSM-5, which includes three diagnostic categories: Catatonic Disorder due to Another Medical Condition, Catatonia Associated with another Mental Disorder (Catatonia Specifier), and Unspecified Catatonia. Additionally, the traditional category of catatonic schizophrenia has been deleted. The Unspecified Catatonia category could encourage research exploring catatonia as an independent diagnostic entity. PMID- 29043156 TI - Transition to school for children with autism spectrum disorder: A systematic review. AB - AIM: To identify factors that promote a positive start to school for children with autism spectrum disorder (ASD). METHODS: Web of Science, MEDLINE, Scopus, and PsychINFO searches were conducted to identify literature published after 1991 and relevant to school transition processes in children with ASD. Twenty studies were deemed eligible for inclusion. These studies evaluated a range of factors including school readiness, parent and teacher perspectives on transition practices, characteristics of children with ASD that are associated with successful transition to school and the impact of school based intervention programs. RESULTS: A review of these studies showed that children with ASD are less school ready emotionally than their peers and those children with ASD appear to have more externalising behaviours and self-regulation difficulties that affect their school engagement and their relationships with their teachers. There was a paucity of research looking at interventions targeting school readiness. However, school-based behavioural interventions appear to improve cognitive, language and daily living skills, but have less impact on socialisation and peer inclusion. CONCLUSION: Children with ASD face more challenges transitioning to school, particularly with social interaction. Further development and implementation of specific school-based interventions is needed in order to assist children with autism to maximise their success in starting school. PMID- 29043157 TI - Cardiac troponin T quantitative assay failure as a result of antibody interference. AB - BACKGROUND: Immunoassays are prone to interference by various substances which may cause inaccurate results. This type of interference is difficult to detect analytically. OBJECTIVE: A case of CARDIAC Troponin T Quantitative reader (Roche Diagnostics) assay failure was detected and investigated in order to ascertain the likely cause. METHOD: Patient whole blood was mixed with cardiac troponin T positive blood, patient and control sera were denuded of immunoglobulin G by protein A-affinity chromatography and patient sera were mixed with mouse serum. Samples were analysed on a CARDIAC Troponin T Quantitative reader. RESULTS: A mixture of patient whole blood and cardiac troponin T-positive blood resulted in assay failure; removal of immunoglobulin G from patient sera reversed the cardiac troponin T assay failure; the addition of mouse serum as a heterophile antibody blocking agent had no effect. CONCLUSION: It is proposed that the interference resulting in assay failure may not be because of a heterophile antibody, but rather a result of a circulating autoantibody to cardiac troponin T, which may compete with antibody assay reagents for binding sites. PMID- 29043158 TI - Heterogeneity of Campylobacter species isolated from serial stool specimens of Egyptian children using pulsed field gel electrophoresis. AB - BACKGROUND: The genus Campylobacter spp. is a common cause of human acute bacterial enteritis and travellers' diarrhoea worldwide. OBJECTIVE: To determine whether multiple serial isolations of Campylobacter spp., when obtained from a single child, represented the same or a different organism. METHODS: In a birth cohort study conducted in Egypt, numerous children showed serial isolations of Campylobacter spp. Of these, 13 children were selected from different households based on the successive isolation of six or more Campylobacter isolates from stool samples. RESULTS: Eighty isolates were recovered and identified as either Campylobacter coli (n = 25) or Campylobacter jejuni (n = 55). Pulsed-field gel electrophoresis (PFGE) revealed the presence of 38 unique C. jejuni and 24 C. coli profiles at a similarity level of >= 90%. Although no serially-identical isolates were detected in six children, others demonstrated at least one identical couple of isolates; all identified serially between one to six weeks. Two children demonstrated > 80% similar couples of isolates that appeared seven months apart. PFGE could be a useful tool for differentiating reinfection, relapse and convalescent excretion phases. CONCLUSION: Our data suggest that Campylobacter infection in children is a complex process; children are exposed to multiple species in endemic environments and strains of the same bacterium appear to be shed serially between one to six weeks after the first exposure. Isolates that persisted for longer periods were relatively less similar, as shown from the results of this study. PMID- 29043159 TI - The association between sex hormone-binding globulin and type 2 diabetes in Nigerian men. AB - BACKGROUND: Epidemiological studies have shown that sex hormone-binding globulin (SHBG) has a role in glucose homeostasis in both men and women. However, a prospective study on Japanese-American subjects concluded that SHBG was not a significant risk factor in either men or women, suggesting ethnic differences. We were not aware of any evaluation of SHBG in subjects of African ancestry. OBJECTIVES: We investigated the association between SHBG and insulin resistance in type 2 diabetic diabetic men in a hospital in Nigeria. METHOD: Forty-eight male subjects with type 2 diabetes and 20 non-diabetic male subjects were recruited in this cross-sectional hospital-based study by the convenient sampling method. Height and circumferences around the waist and hip were measured to the nearest 0.5 cm and the waist-hip ratio was calculated from this measurement. Weight was measured and body mass index was calculated. Fasting plasma glucose concentration was measured by the glucose oxidase method with a between-run coefficient of variation of 3%. Insulin and SHBG were measured by means of enzyme linked immunosorbent assay (ELISA). RESULTS: There was a statistically significant difference between test results for the diabetic and non-diabetic patients. The mean SHBG concentration was higher in the non-diabetic group (42.2 nmol/L) than the diabetic group (30.5 nmol/L). A significant inverse association between insulin resistance and SHBG was observed (r = 0.353, p < 0.015). CONCLUSION: This study supported earlier observations that a significant inverse correlation exists between SHBG and insulin resistance and provides evidence that the relationship may extend to type 2 diabetic men of African ancestry in Nigeria. PMID- 29043160 TI - Carriage rate and serotypes of Streptococcus pneumoniae amongst children in Thika Hospital, Kenya. AB - Streptococcus pneumoniae is a major cause of morbidity and mortality worldwide. Rates of carriage are highest in infants and the elderly. The objectives of this study were to determine the rate of nasopharyngeal colonization by S. pneumoniae, and to describe the antibiotic resistant patterns and the serotypes of the carried isolates. A cross-sectional study design was used. Nasopharyngeal swabs were collected from 315 children in the months of October and November 2010 and processed to isolate S. pneumoniae. The isolates were serotyped by the Quellung reaction and their antibiotic susceptibilities assessed by the disc diffusion method. The overall nasopharyngeal carriage rate for S. pneumoniae was 17%. Seventeen serotypes were detected amongst 55 strains analysed: 6A, 23F, 19F, 13, 6B, 14A, 20, 7C, 1, 15B, 35B, 19A, 11A, 34, 5, 3 and 23A. Susceptibility testing revealed that nearly all (98%) were resistant to cotrimoxazole, 9% were resistant to penicillin and 7% to cefotaxime. Resistance to chloramphenicol and erythromycin was 2% and 4%, respectively. All isolates were fully sensitive to tetracycline. High levels of cotrimoxazole resistance and some resistance to other antimicrobial agents commonly used in Thika District Hospital shows that there is need to revise antimicrobial policy in this region in the treatment of invasive pneumococcal infections. The frequent serotypes found in this study have previously been associated with pneumococcal infections in children. Several of these serotypes are included in the ten-valent vaccine and therefore use of this vaccine will help reduce pneumococcal infections in Thika. PMID- 29043161 TI - Navigating laboratory services quality in challenging environments: A perspective for implementation in small, low-income countries and post-conflict settings. AB - The need to establish and maintain good laboratory practices is recognised universally. However, due to differences in resources available for health services in different countries, allocation of financial and human resources in poor countries is severely constrained. The constraints faced by poor countries call for innovative approaches that would guarantee the minimum acceptable quality while striving to meet the highest standards. In resource-limited setting, it may be justifiable to develop and use 'fit for purpose' quality standards based on internationally-recognised laboratory quality management frameworks or protocols. PMID- 29043162 TI - Biomedical laboratory science education: standardising teaching content in resource-limited countries. AB - BACKGROUND: There is a worldwide shortage of qualified laboratory personnel to provide adequate testing for the detection and monitoring of diseases. In an effort to increase laboratory capacity in developing countries, new skills have been introduced into laboratory services. Curriculum revision with a focus on good laboratory practice is an important aspect of supplying entry-level graduates with the competencies needed to meet the current needs. OBJECTIVES: Gaps in application and problem-solving competencies of newly graduated laboratory personnel were discovered in Ethiopia, Tanzania and Kenya. New medical laboratory teaching content was developed in Ethiopia, Tanzania and Kenya using national instructors, tutors, and experts and consulting medical laboratory educators from the United States of America (USA). METHOD: Workshops were held in Ethiopia to create standardised biomedical laboratory science (BMLS) lessons based on recently-revised course objectives with an emphasis on application of skills. In Tanzania, course-module teaching guides with objectives were developed based on established competency outcomes and tasks. In Kenya, example interactive presentations and lesson plans were developed by the USA medical laboratory educators prior to the workshop to serve as resources and templates for the development of lessons within the country itself. RESULTS: The new teaching materials were implemented and faculty, students and other stakeholders reported successful outcomes. CONCLUSIONS: These approaches to updating curricula may be helpful as biomedical laboratory schools in other countries address gaps in the competencies of entry-level graduates. PMID- 29043163 TI - Aetiology and factors associated with bacterial diarrhoeal diseases amongst urban refugee children in Eastleigh, Kenya: A case control study. AB - INTRODUCTION: Kenya is home to over 400 000 refugees from neighbouring countries. There is scanty information about diarrhoea amongst urban refugees in Kenya. OBJECTIVES: We investigated the enteric bacteria causing diarrhoea amongst urban refugee children and described the associated factors. METHOD: During the period of August-December 2010, urban refugee children between the ages of two and five who attended Eastleigh County Council Health Centre were enrolled into the study. Diarrhoeal cases were compared with age-matched children with no diarrhoea (controls). Stool specimens were collected and enteric bacteria isolated. A questionnaire was administered to identify risk factors. RESULTS: A total of 41 cases and 41 controls were enrolled in the study. The age and country of origin were similar for cases and controls. The bacterial isolation rates amongst the cases were: non-pathogenic Escherichia coli 71%, Shigella dysenteriae 2.4%, Shigella flexneri 2.4%, Salmonella paratyphi 5%. For the controls, non-pathogenic E. coli 90% and enterotoxigenic E. coli (ETEC) 2.4% were amongst the organisms isolated. All isolates were resistant to amoxicillin; resistance to other antibiotics varied by isolate type. Factors associated independently with diarrhoea included children not washing their hands with soap (aOR 5.9, p < 0.05), neighbour(s) having diarrhoea (aOR 39.8, p < 0.05), children not exclusively breastfed for their first 6 months (aOR 7.6, p < 0.05) and children eating food cooked the previous day (aOR 23.8, p = 0.002). CONCLUSIONS: Shigella species, Salmonella species and ETEC were found to be responsible for diarrhoea amongst the urban refugee children. Measures to control and guide the use of antibiotics are critical for the prevention of antibiotic resistance. Efforts to improve personal and domestic hygiene, including educational campaigns to promote appropriate handwashing, should be encouraged. PMID- 29043164 TI - The viral aetiology of influenza-like illnesses in Kampala and Entebbe, Uganda, 2008. AB - BACKGROUND: As the threat of zoonoses and the emergence of pandemic-prone respiratory viruses increases, there is a need to establish baseline information on the incidence of endemic pathogens in countries worldwide. OBJECTIVES: To investigate the presence of viruses associated with influenza-like illnesses (ILI) in Uganda. METHODS: A cross-sectional study was conducted in which nasopharyngeal swab specimens were collected from patients diagnosed with ILI in Kampala and Entebbe between 14 August 2008 - 15 December 2008. A multiplex polymerase chain reaction assay for detecting 12 respiratory viruses was used. RESULTS: A total of 369 patients (52.3% females) was enrolled; the median age was 6 years (range 1-70). One or more respiratory viruses were detected in 172 (46.6%) cases and their prevalence were influenza A virus (19.2%), adenovirus (8.7%), human rhinovirus A (7.9%), coronavirus OC43 (4.3%), parainfluenza virus 1 (2.7%), parainfluenza virus 3 (2.7%), influenza B virus (2.2%), respiratory syncytial virus B (2.2%), human metapneumovirus (1.4%), respiratory syncytial virus A (1.1%), parainfluenza virus 2 (0.5%) and coronavirus 229E (0.5%). There were 24 (14.0%) mixed infections. CONCLUSIONS: This study identified some of the respiratory viruses associated with ILI in Uganda. The circulation of some of the viruses was previously unknown in the study population. These results are useful in order to guide future surveillance and case management strategies involving respiratory illnesses in Uganda. PMID- 29043165 TI - Prevalence, intensity and complications of Microsporidium spores amongst HIV positive hospital patients in Ilorin, Nigeria. AB - BACKGROUND: Microsporidiasis, which is of great concern for immunocompromised patients, is poorly studied in developing countries. OBJECTIVES: A study was carried out amongst HIV-positive hospital patients and HIV-negative hospital controls in Ilorin, Nigeria, between January 2009 and July 2010 to determine the prevalence and intensity of Microsporidium spores and the complications associated with their presence. METHOD: Stool samples from 750 HIV-positive patients and 375 HIV-negative patients were studied using the Chromotrope-2R staining technique. Determination of CD4+ count was performed on the Partec Cyflow SL-3 CD4/8 instrument. Intensity of spores was determined by counting the total number of the spores in a 10 ul stained smear of stool. Images were captured with Phenix Microimage Analysis Software and data obtained were analysed using the Statistical Package for the Social Sciences. RESULTS: The prevalence of Microsporidium isolates amongst the HIV-positive hospital patients was significantly higher (42.4%) than amongst the HIV-negative controls (19.2%) (p < 0.05). The intensity of microsporidial spores amongst HIV-positive hospital patients was also significantly higher than amongst the controls (p < 0.05). However, the difference in the intensity of spores amongst HIV-positive patients who were on antiretroviral therapy (n = 411) and those who were not (n = 339) was not significant (p = 0.236). Microsporidiasis in HIV infection infection was common amongst patients with with low CD4+ counts, diarrhoea, body rashes and cough. CONCLUSION: Both the prevalence and intensity of Microsporidiasis are high amongst HIV-positive hospital patients; campaigns to promote awareness, prevention and control are required. Laboratory testing for microsporidia in HIV patients should be performed routinely so as to identify the organism for prompt medical attention. PMID- 29043166 TI - Comparison of the COBAS/Ampliprep Taqman and Amplicor HIV-1 monitor tests in Lagos, Nigeria. AB - BACKGROUND: The use of real-time Polymerase chain reaction (PCR) technology options is increasing in resource-limited settings because they are faster, improve assay sensitivity, have higher throughput, larger dynamic ranges and reduced rates of contamination. In 2010, UNAIDS ranked Nigeria as the second highest population of people living with HIV and AIDS (2.98 million people) in the world. OBJECTIVE: The objective of this study was to compare the analytical performances of the Amplicor HIV-1 Monitor (version 1.5) and the COBAS Ampliprep/Taqman (version 2.0) used in monitoring HIV disease progression in HIV infected individuals. METHOD: In a cross-sectional study, HIV-1 RNA values obtained with the Amplicor HIV-1 monitor version 1.5 were compared with those of the COBAS/Ampliprep TaqMan HIV-1 version 2.0 in a routine clinical setting. Between May and November 2011, 176 plasma samples collected were analysed in parallel using both techniques. Data analysis was done using statgraphics Centurion XVI and Medcalc version 12.0. RESULT: The correlation coefficient for the two assays was 0.83 and the level of agreement using a Bland-Altman plot was 94.2%. CONCLUSION: These findings suggest that the results from the two methods were comparable, hence the COBAS/Ampliprep Taqman version 2.0 is recommended for high-volume laboratories. PMID- 29043168 TI - Setting up a structured laboratory mentoring programme. AB - INTRODUCTION: Laboratory mentoring programmes can be an important vehicle to establish and solidify quality management systems and help laboratories achieve accreditation goals. Different mentoring approaches have been used with varying levels of success. The authors provide a guide to implementing a structured laboratory mentorship programme based on their practical field experience. METHOD: The study is based on experience in Lesotho as well as subsequent roll out of a similar approach in the other African countries of Zimbabwe, Mozambique, Swaziland and Cameroon between 2009 and 2011. SUMMARY: We highlight critical elements to consider when setting up a long-term, sustainable and well-structured mentorship programme. These elements include: well-defined goals; sufficient length of mentor engagement on site; standardised approach across laboratories; measurement of progress using standardised tools; well-structured reporting mechanisms; alignment of the programme with overall Ministry of Health plans; and selection and training of the mentors. These elements will differ in application, depending on countries' needs and available resources. A structured approach allows for scalability, comparison across laboratories and countries and an easier approach to budgeting and planning for countries intending to set up similar programmes. PMID- 29043167 TI - HIV and Tuberculosis co-infection impacts T-cell activation markers but not the numbers subset of regulatory T-cells in HIV-1 infected patients. AB - BACKGROUND: Tuberculosis (TB) has been shown to accelerate the clinical course of HIV infection, but the mechanisms by which this occurs are not well understood. Regulatory T-cells (Tregs) are known to dampen hyperactivation of the immune cells, but it remains unclear whether hyperactivation of T-cells in HIV infection is associated with a decrease of Tregs and what the effect Mycobacterium tuberculosis (MTB) co-infection has on T-cell activation and Tregs. OBJECTIVES: In this study, we aim to evaluate whether active TB is associated with the increased expression of T-cell activation markers and reduced number of Treg cells in HIV-1-infected patients. METHODS: This study was conducted on 69 subjects consisting of 20 HIV-infected patients, 20 HIV and MTB co-infected patients, 19 MTB-infected patients and 10 uninfected control subjects negative for both MTB and HIV. The frequencies of T-cell activation markers (CD38 and HLA DR) and Treg cells (CD4+CD25+CD127-) were measured by flow cytometry. RESULTS: Significantly higher expression of CD38 and HLA-DR on CD4+ and CD8+ T-cells was found in MTB and HIV co-infected patients compared with HIV-infected patients. However, no significant difference in the percentage of Treg cells was reported between HIV patients with TB and those without. The study also showed a negative correlation between regulatory T-cells frequency and CD4+ T-cell counts. CONCLUSION: These results suggest that TB enhances the expression of peripheral T cell activation markers during HIV infection, whilst having no impact on the percentages of Treg cells. PMID- 29043170 TI - Haematopathology diagnosis: Role of multidisciplinary training workshops. PMID- 29043169 TI - In vitro antiplasmodial and cytotoxic properties of some medicinal plants from western Burkina Faso. AB - BACKGROUND: Resistance of malaria parasites to existing drugs complicates treatment, but an antimalarial vaccine that could protect against this disease is not yet available. It is therefore necessary to find new effective and affordable medicines. Medicinal plants could be a potential source of antimalarial agents. Some medicinal plants from Burkina Faso were evaluated for their antiplasmodial and cytotoxic properties in vitro. METHODS: Crude dichloromethane, methanol, water-methanol, aqueous and alkaloids extracts were prepared for 12 parts of 10 plants. Chloroquine-resistant malaria strain K1 was used for the in vitro sensibility assay. The Plasmodium lactacte dehydrogenase technique was used to determine the 50% inhibitory concentration of parasites activity (IC50). The cytotoxic effects were determined with HepG2 cells, using the tetrazolium-based colorimetric technique, and the selectivity index (SI) was calculated. RESULTS: Sixty crude extracts were prepared. Seven extracts from Terminalia avicenoides showed IC50 < 5 ug/mL. The IC50 of dichloromethane, methanol, aqueous and alkaloids extracts ranged between 1.6 ug/mL and 4.5 ug/mL. Three crude extracts from Combretum collinum and three from Ficus capraefolia had an IC50 ranging between 0.2 ug/mL and 2.5 ug/mL. Crude extracts from these three plants had no cytotoxic effect, with SI > 1. The other plants have mostly moderate or no antimalarial effects. Some extracts from Cordia myxa, Ficus capraefolia and Opilia celtidifolia showed cytotoxicity, with an SI ranging between 0.4 and 0.9. CONCLUSION: Our study showed a good antiplasmodial in vitro activity of Terminalia avicenoides, Combretum collinum and Ficus capraefolia. These three plants may contain antiplasmodial molecules that could be isolated by bio-guided phytochemical studies. PMID- 29043171 TI - Virulence factors in environmental and clinical Vibrio cholerae from endemic areas in Kenya. AB - BACKGROUND: Since 1971, Kenya has had repeated cholera outbreaks. However, the cause of seasonal epidemics of cholera is not fully understood and neither are the factors that drive epidemics, both in Kenya and globally. OBJECTIVES: The objectives of the study were to determine the environmental reservoirs of V. cholerae during an interepidemic period in Kenya and to characterise their virulence factors. METHODS: One hundred (50 clinical, 50 environmental) samples were tested for V. cholerae isolates using both simplex and multiplex polymerase chain reaction. RESULTS: Both sediments and algae from fishing and landing bays yielded isolates of V. cholerae. Clinical strains were characterised along with the environmental strains for comparison. All clinical strains harboured ctxA, tcpA (El Tor), ompU, zot, ace, toxR, hylA (El Tor) and tcpI genes. Prevalence for virulence genes in environmental strains was hylA (El Tor) (10%), toxR (24%), zot (22%), ctxA (12%), tcpI (8%), hylA (26%) and tcpA (12%). CONCLUSION: The study sites, including landing bays and beaches, contained environmental V. cholerae, suggesting that these may be reservoirs for frequent epidemics. Improved hygiene and fish-handling techniques will be important in reducing the persistence of reservoirs. PMID- 29043172 TI - Candidaemia in a tertiary hospital in Nigeria. AB - BACKGROUND: Candidaemia is a widely-studied and reviewed topic in the developed world; however, there is a dearth of information on nosocomial candidaemia in Nigeria, despite the increasing use of more invasive therapeutic modalities, immunosuppressive agents and increasing incidence of immunosuppression as a result of malignancies and HIV. OBJECTIVES: To determine the hospital-based frequency of candidaemia in a tertiary hospital in Ibadan, Nigeria. METHOD: This was a prospective descriptive study which included 230 immunosuppressed patients. All isolates were identified to the species level using both conventional and automated methods. Thereafter, all Candida species isolated were tested for antifungal susceptibility using the broth microdilution method. RESULTS: Candidaemia occurred in 12 (5.21%) of the 230 study patients, with C. tropicalis accounting for 50% of the infections. Four patients (33.3%) presented with C. parapsilosis, one (8.3%) with C. albicans and one (8.3%) with a mixed infection of C. albicans and C. tropicalis. All 12 isolates were sensitive to fluconazole (minimal inhibitory concentration < 8 mg/mL). Univariate analysis revealed that old age, multiple surgeries and long-term hospitalisation were significant contributing factors for the occurrence of candidaemia. Eleven (91.7%) of the 12 patients with candidaemia had Candida colonisation of other sterile sites including the bladder, peritoneum and trachea. Furthermore, bivariate analysis revealed that mucositis (p = 0.019) and diarrhoea (p = 0.017) were significantly associated with an increased risk of candidaemia. The crude mortality rate of candidaemia was 91.7%. CONCLUSION: This study highlights the significance of nosocomial candidaemia and the need for proactive laboratory investigation and clinical management of this life-threatening disease. PMID- 29043173 TI - An audit of immunofixation requesting practices at a South African referral laboratory. AB - BACKGROUND: It is common practice in most chemical pathology laboratories for reflective immunofixation electrophoresis (IFE) to occur following the detection or suspicion of a paraprotein on serum protein electrophoresis (SPEP). The chemical pathology laboratory at Inkosi Albert Luthuli Central Hospital (IALCH) in Durban, South Africa, is currently the only non-private laboratory in the KwaZulu Natal province that performs SPEP analysis, with current practice requiring that the clinician request IFE following suggestion by the laboratory after a suspicious SPEP result. OBJECTIVES: To review the current process for IFE at IALCH in the context of reflective testing and to examine the use of the alpha 2-globulin/alpha-1-globulin ratio as a predictor of a positive IFE result. METHODS: Data for 1260 consecutive SPEP tests performed at the IALCH National Health Laboratory Service were collected between February and July 2011. SPEP and IFE were performed with a Sebia Hydrasys automated electrophoresis system. The alpha-2-globulin/alpha-1-globulin ratio was calculated using density of corresponding fractions on SPEP. RESULTS: Analysis revealed that of the 1260 SPEPs performed during the analysis period, 304 IFEs were suggested by the reviewing pathologist. A total of 45 (15%) of the suggested IFEs were subsequently requested by the attending clinicians. Almost half (46.5%) (n = 20) of the suggested IFEs that were performed revealed the presence of a paraprotein. There was no statistically-significant difference between the alpha-2 globulin/alpha-1-globulin ratio for patients with positive or negative IFEs (p value = 0.2). CONCLUSIONS: This study reveals the need for reflective addition of IFE testing by the laboratory following suspicious findings on SPEP. PMID- 29043174 TI - Development of a safer laboratory vervet monkey model for the study of human African trypanosomiasis. AB - BACKGROUND: There are three subspecies of Trypanosoma brucei: T. b. gambiense, T. b. rhodesiense and T. b. brucei. The first two are infectious to humans, whilst T. b. brucei is not. Identifying an animal model of T. b. brucei that mimics human African trypanosomiasis (HAT) would enable researchers to study HAT without subjecting themselves to undue risks such as accidental infection. OBJECTIVES: This study assessed the sequential clinical, parasitological and haematological changes in vervet monkeys infected with T. b. brucei. METHODS: Three vervet monkeys were infected with a 104 inoculum of T. b. brucei (isolate GUTat 1). Late stage disease was induced by subcurative treatment with diminazene aceturate 28 days post-infection. The animals were treated curatively with melarsoprol upon relapse. Parasitaemia and clinical signs were monitored daily and, at weekly intervals, the monkeys' blood and cerebrospinal fluid (CSF) were sampled for haematology and parasitosis assessments, respectively. RESULTS: The first-peak parasitaemia was observed between seven and nine days post-infection. Clinical signs associated with the disease included fever, dullness, pallor of mucous membranes, lymphadenopathy, splenomegaly and oedema. Late-stage signs included stiffness of joints and lethargy. The monkeys developed a disease associated with microcytic hypochromic anaemia. There was an initial decline, followed by an increase, in total white blood cell counts from early- to late-stage disease. Trypanosomes were detected in the CSF and there was a significant increase in white cell counts in the CSF during late-stage disease. Infected vervet monkeys displayed classical clinical symptoms, parasitological and haematological trends that were similar to monkeys infected with T.b. rhodesiense. CONCLUSION: The T. b. brucei vervet monkey model can be used for studying HAT without putting laboratory technicians and researchers at high risk of accidental infection. PMID- 29043175 TI - Optimising the laboratory supply chain: The key to effective laboratory services. AB - BACKGROUND: The Supply Chain Management System (SCMS) is a contract managed under the Partnership for Supply Chain Management (PFSCM) consortium by the United States Agency for International Development (USAID). SCMS procures commodities for programmes supported by the US President's Emergency Plan for AIDS Relief (PEPFAR). From 2005 to mid-2012, PEPFAR, through SCMS, spent approximately $384 million on non-pharmaceutical commodities. Of this, an estimated $90m was used to purchase flow cytometry technology, largely for flow cytometry platforms and reagents. OBJECTIVES: The purpose of this paper is to highlight the cost differences between low, medium and high utilisation rates of common CD4 testing instruments that have been procured though PEPFAR funding. METHOD: A scale of costs per test as a function of test volume through the machine was calculated for the two most common CD4 testing machines used in HIV programmes: Becton Dickinson (BD) FACSCountTM and BD FACSCaliburTM. Instrument utilisation data collected at the facility level in three selected countries were then used to calculate the onsite cost-per-test experienced in each country. RESULTS: Cost analyses indicated that a target of at least 40% utilisation for FACSCountTM and 15% utilisation for FACSCaliburTM, respectively, closely approach maximal per test cost efficiency. The average utilisation rate for CD4 testing instruments varies widely by country, level of laboratory and partner (0% - 68%). CONCLUSION: Our analysis indicates that, because cost-per-test is related inversely to sample throughput, the underutilisation of flow cytometry machines is resulting in an increase in average cost-per-test for many instruments. PMID- 29043176 TI - Proficiency testing for HIV, tuberculosis and malaria diagnosis in clinical laboratories in Nigeria. AB - BACKGROUND: Proficiency testing (PT) is a means of verifying the reliability of laboratory results, but such programmes are not readily available to laboratories in developing countries. This project provided PT to laboratories in Nigeria. OBJECTIVES: To assess the proficiency of laboratories in the diagnosis of HIV, tuberculosis and malaria. METHODS: This was a prospective study carried out between 2009 and 2011. A structured questionnaire was administered to 106 randomly-selected laboratories. Forty-four indicated their interest in participation and were enrolled. Four rounds of pre-characterised plasma panels for HIV, sputum films for tuberculosis and blood films for malaria were distributed quarterly by courier over the course of one year. The results were returned within two weeks and scores of >= 80% were reported as satisfactory. Mentoring was offered after the first and second PT rounds. RESULTS: Average HIV PT scores increased from 74% to 95% from the first round to the third round, but decreased in the fourth round. For diagnosis of tuberculosis, average scores increased from 42% in the first round to 78% in the second round; but a decrease to 34% was observed in the fourth round. Malaria PT performance was 2% at first, but average scores increased between the second and fourth rounds, culminating in a fourth-round score of 39%. Many participants requested training and mentoring. CONCLUSIONS: There were gross deficiencies in the quality of laboratory services rendered across Nigeria. In-country PT programmes, implemented in conjunction with mentoring, will improve coverage and diagnosis of HIV, tuberculosis and malaria. PMID- 29043177 TI - Improving access to new diagnostics through harmonised regulation: priorities for action. AB - A new generation of diagnostic tests is being developed for use at the point of care that could save lives and reduce the spread of infectious diseases through early detection and treatment. It is important that patients in developing countries have access to these products at affordable prices and without delay. Regulation of medical products is intended to ensure safety and quality whilst balancing the need for timely access to beneficial new products. Current regulatory oversight of diagnostic tests in developing countries is highly variable and weak regulation allows poor-quality tests to enter the market. However, inefficient or overzealous regulation results in unnecessary delays, increases costs and acts as a barrier to innovation and market entry. Setting international standards and streamlining the regulatory process could reduce these barriers. Four priority activities have been identified where convergence of standards and protocols or joint review of data would be advantageous: (1) adoption of a common registration file for pre-market approval; (2) convergence of quality standards for manufacturing site inspections; (3) use of common evaluation protocols, as well as joint review of data, to reduce unnecessary duplication of lengthy and costly clinical performance studies; and (4) use of networks of laboratories for post-market surveillance in order to monitor ongoing quality of diagnostic devices. The adoption and implementation of such measures in developing countries could accelerate access to new diagnostic tests that are safe and affordable. PMID- 29043178 TI - The interface between clinicians and laboratory staff: A field study in northern Tanzania. AB - BACKGROUND: Strengthening the communication and professional relationships between clinicians and laboratory workers is essential in order to positively change clinicians' attitudes about the reliability of diagnostic tests, enhancing the use of laboratory diagnostics and, ultimately, improving patient care. We developed an analytical framework to gain insight into the factors that influence communication amongst health professionals. OBJECTIVE: To explore whether the interaction between clinicians and laboratory workers influences the use of laboratory test results in clinical decision making. METHODS: Four health facilities in northern Tanzania were selected using convenience sampling, whereas study participants were selected using purposive sampling. The quantitative and qualitative data collection methods included self-administered questionnaires; semi-structured, individual interviews; in-depth, individual interviews; and/or focus group discussions with clinicians and laboratory workers. Thematic content analyses were performed on qualitative data based on the framework. Descriptive statistical analyses of quantitative data were conducted using Microsoft Excel. RESULTS: Contact between clinicians and laboratory professionals is seldom institutionalised and collaboration is rare. The clinicians believe collaboration with laboratory staff is a challenge because of the gap in education levels. Laboratory workers' education levels are often lower than their positions require, leading to clinicians' lack of respect for and confidence in laboratory professionals, which compromises the laboratory staff's motivation. CONCLUSIONS: Hospital managers, clinicians and laboratory workers need to recognise the critical and complementary roles each professional plays and the importance of addressing the gap between them. Field application of the framework proved successful, justifying the expansion of this study to a larger geographical area to include additional healthcare institutions. PMID- 29043179 TI - Understanding the interface between clinical and laboratory staff. AB - BACKGROUND: The interface between clinicians and laboratory staff is where the two meet and work together to provide quality care to their clients (patients). Effectiveness of the interface depends on the way the two groups of professionals relate to and communicate with each other. The number and type of tests requested and the use of the test results for clinical decision making can be influenced by the interface between clinicians and laboratory staff. A model to understand the factors and dynamics around the interface is lacking. OBJECTIVES: To propose a new conceptual model to gain insight and analyse factors that influence the laboratory-clinical staff interface. METHODS: To develop the conceptual model, a literature study was performed, regulatory guidelines and standards for laboratories were analysed and discussions were held with experts on the topic. RESULT: A conceptual model and analytical framework provided good guidance in understanding and assessing the organisational and personal factors shaping the interface. The model was based on three elements: (1) the three phases of communication (pre-analytical, analytical and post-analytical); (2) the organisational and personal factors of interaction; and (3) the socio-political, economic and cultural context in which clinicians and laboratory staff operate. CONCLUSION: Assessment of the interface between clinicians and laboratory workers can be performed in a systematic way. Applying this model will provide information to managers of health institutions and heads of laboratories and clinical departments about what happens when clinicians and laboratory staff interact, thus aiding them in designing strategies to improve this interface. PMID- 29043180 TI - Tuberculosis alters pancreatic enzymes in the absence of pancreatitis. AB - BACKGROUND: Lipases and phospholipases are thought to contribute to the pathogenesis of Mycobacterium tuberculosis (MTB) infection. Genes coding for lipases, phospholipases and amylase are present in MTB, enabling the bacteria to produce these enzymes. OBJECTIVE: To compare serum lipase and amylase activity levels in patients with tuberculosis (TB) against those of healthy controls. METHODS: Serum lipase and amylase activity levels were measured in 99 patients and 143 healthy controls using the Vitros 250 Chemistry analyser. Reference ranges for serum lipase and amylase were 23-300 U/L and 30-110 U/L, respectively. RESULTS: Lipase was higher in patients with MTB than in controls (81.5 IU/L versus 66.5 IU/L, p = 0.006). Similarly, amylase was higher in the MTB patient group (76 IU/L versus 60 IU/L, p < 0.001). The Pearson correlation coefficient for lipase versus amylase (R) was higher in the controls (R = 0.351, p < 0.0001) compared with MTB patients (R = 0.217, p = 0.035). Amongst MTB patients, lipase activity correlated positively with erythrocyte sedimentation rate (ESR) (R = 0.263, p = 0.013), but not with haemoglobin concentration or treatment duration. A weak inverse correlation was noted between ESR and treatment duration (R = 0.222, p = 0.028). CONCLUSION: Pancreatic enzyme levels differ between MTB patients and normal controls; however, this difference still lies within the normal range. The concomitant increase of lipase with ESR, an inflammatory marker, could conceivably suggest a causal relationship. Further research is necessary to characterise MTB-derived enzymes for diagnostic and therapeutic utility. PMID- 29043181 TI - Phlebotomy and quality in the African laboratory. AB - Phlebotomy, the act of drawing blood through venepuncture, is one of the most common medical procedures in healthcare, as well as being a basis for diagnosis and treatment. A review of the available research has highlighted the dearth of information on the phlebotomy practice in Africa. Several studies elsewhere have shown that the pre-analytical phase (patient preparation, specimen collection and identification, transportation, preparation for analysis and storage) is the most error-prone process in laboratory medicine. The validity of any laboratory test result hinges on specimen quality; thus, as the push for laboratory quality improvement in Africa gathers momentum, the practice of phlebotomy should be subjected to critical appraisal. This article offers several suggestions for the improvement of phlebotomy in Africa. PMID- 29043182 TI - View from the top: Involvement of Namibia's health ministry in laboratory quality improvement. PMID- 29043183 TI - Improving quality in national reference laboratories: The role of SLMTA and mentorship. AB - BACKGROUND: The Nigerian Institute of Medical Research houses two reference laboratories: the virology and tuberculosis laboratories. Both were enrolled in the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme. OBJECTIVE: To describe the impact of SLMTA and discuss factors affecting the results, with an emphasis on mentorship. METHODS: The SLMTA programme was implemented from April 2010 through November 2012. Participants attended three workshops and executed quality improvement projects; laboratory auditors evaluated performance using a standard checklist. The virology laboratory did not receive mentorship; however, the tuberculosis laboratory had an international mentor who visited the laboratory four times during the programme, spending two to four weeks embedded within the laboratory during each visit. RESULTS: There was an overall improvement in the performance of both laboratories, with the virology laboratory increasing 13% (from 80% at baseline to 93% at exit audit) and the tuberculosis laboratory increasing 29% (from 66% to 95%). These scores were maintained nine months later at the surveillance audit. CONCLUSION: The SLMTA programme resulted in improved and sustained quality management performance for both laboratories. Mentoring was a possible factor in the substantial improvement made by the tuberculosis laboratory and should be considered in order to augment the training received from the SLMTA workshops. PMID- 29043184 TI - Creating a sustainable culture of quality through the SLMTA programme in a district hospital laboratory in Kenya. AB - BACKGROUND: Bungoma District Hospital Laboratory (BDHL), which supports a 200-bed referral facility, began its Strengthening Laboratory Management Toward Accreditation (SLMTA) journey in 2011 together with eight other laboratories in the second round of SLMTA rollout in Kenya. OBJECTIVES: To describe how the SLMTA programme and enhanced quality interventions changed the culture and management style at BDHL and instilled a quality system designed to sustain progress for years to come. METHODS: SLMTA implementation followed the standard three-workshop series, mentorship site visits and audits. In order to build sustainability of progress, BDHL integrated quality improvement processes into its daily operations. The lab undertook a process of changing its internal culture to align all hospital stakeholders - including upper management, clinicians, laboratory staff and maintenance staff - to the mission of sustainable quality practices at BDHL. RESULTS: After 16 months in the SLMTA programme, BDHL improved from zero stars (38%) to four stars (89%). Over a period of two to three years, external quality assessment results improved from 47% to 87%; staff punctuality increased from 49% to 82%; clinician complaints decreased from 83% to 16; rejection rates decreased from 12% to 3%; and annual equipment repairs decreased from 40 to 15. Twelve months later the laboratory scored three stars (81%) in an external surveillance audit conducted by Kenya Accreditation Service (KENAS). CONCLUSION: Management buy-in, staff participation, use of progress-monitoring tools and feedback systems, as well as incorporation of improvement processes into routine daily activities, were vital in developing and sustaining a culture of quality improvement. PMID- 29043185 TI - One laboratory's progress toward accreditation in Tanzania. AB - INTRODUCTION: The Amana Regional Hospital Laboratory in Tanzania was selected, along with 11 other regional and district laboratories, to participate in a pilot programme for laboratory quality improvement using the Strengthening Laboratory Management Toward Accreditation (SLMTA) training programme. PROGRAMME IMPLEMENTATION: The SLMTA programme entailed hands-on learning, improvement projects between and after a three-workshop series, supervisory visits from an oversight team and an expert laboratory mentor to facilitate and coach the process. Audits were conducted at baseline, exit (approximately one year after baseline) and follow-up (seven months after exit) using the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist. Quality stars (zero to five) were awarded based on audit scores. RESULTS: With a dedicated staff and strong leadership from laboratory management, Amana Laboratory implemented processes, policies and procedures recommended as elements of best laboratory practices. The laboratory improved from zero stars (36%) at baseline to successfully achieving three stars (81%) at exit. This was the highest score achieved by the 12 laboratories in the programme (the median exit score amongst the other laboratories was 58%). Seven months after completion of the programme, the laboratory regressed to one star (62%). DISCUSSION: As the SLMTA improvement programme progressed, Amana Laboratory's positive attitude and hard work prevailed. With the assistance of a mentor and the support of the facility's management a strong foundation of good practices was established. Although not all improvements were maintained after the conclusion of the programme and the laboratory dropped to a one-star rating, the laboratory remained at a higher level than most laboratories in the programme. PMID- 29043186 TI - From grass to grace: How SLMTA revolutionised the Bamenda Regional Hospital Laboratory in Cameroon. AB - BACKGROUND: Public health laboratories form the foundation on which today's clinical laboratory practice in Cameroon is built. The advent of the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme in 2009 empowered the Bamenda Regional Hospital Laboratory (BRHL) to improve its working culture, practices and management. OBJECTIVES: To evaluate the results of SLMTA implementation at BRHL and discuss lessons learned. METHOD: In 2010, the SLMTA programme was rolled out in Cameroon to improve laboratory quality management systems in five laboratories, including BRHL. Three workshops were conducted (the first centralised, the remaining two on-site at each laboratory) and improvement projects were implemented after each workshop with the assistance of mentors. Audits were used in order to evaluate performance and to identify areas for further improvement. RESULTS: BRHL had the lowest score (18%) amongst the cohort at the baseline audit and the highest (81%) at the official Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) audit conducted in August 2013 by the African Society for Laboratory Medicine. Improvements were observed in each of the 12 Quality System Essentials; improvement was especially noteworthy in the areas of facilities and safety, and purchasing and inventory. Staff investment and pride in the quality of laboratory services increased. CONCLUSION: BRHL's remarkable improvement was achieved with a combination of SLMTA training activities, intensive on-site mentorship and the collective focus of all laboratory staff. The experience at Bamenda Hospital illustrates what can be achieved when a laboratory successfully harnesses the energy of its staff and implements changes to improve the quality of services in a transformation taking them from grass to grace. PMID- 29043187 TI - Accelerating the spread of laboratory quality improvement efforts in Botswana. AB - BACKGROUND: In 2002, the Ministry of Health (MoH) of Botswana began its journey toward laboratory accreditation in an effort to enhance the quality of laboratory services. After a difficult start, the MoH recognised the need for a more practical and sustainable method for change that could be implemented nationally; they therefore adopted the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme. OBJECTIVE: This study describes the process and lessons learned in implementing SLMTA and the role of supplemental training and mentoring so as to achieve Botswana's national laboratory quality improvement goal. METHODS: Eight laboratories were enrolled into the SLMTA programme in 2010, which included a series of workshops and improvement projects conducted over nine months. Four of these laboratories received supplementary training and focused mentorship from the Botswana Bureau of Standards (BOBS). Laboratory performance was measured at baseline and exit using the World Health Organization Regional Office for Africa's Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist. One laboratory did not receive an exit audit and was thus excluded from the analysis. RESULTS: An 18 percentage-point improvement was observed when comparing the median baseline score (53%) to the median exit score (71%) for the seven laboratories. Laboratories that received additional training and mentorship from BOBS improved 21 percentage points, whilst non-BOBS-mentored laboratories improved eight percentage points. Hospital management buy-in and strong laboratory staff camaraderie were found to be essential for the positive changes observed. CONCLUSION: SLMTA facilitated improvements in laboratory quality management systems, yielding immediate and measurable results. This study suggests that pairing the SLMTA programme with additional training and mentorship activities may lead to further increases in laboratory performance; and that SLMTA is a practical approach to extending quality improvement to MOH laboratories. PMID- 29043188 TI - Translating a National Laboratory Strategic Plan into action through SLMTA in a district hospital laboratory in Botswana. AB - BACKGROUND: The Ministry of Health (MOH) of Botswana adopted Strengthening Laboratory Management Toward Accreditation (SLMTA), a structured quality improvement programme, as a key tool for the implementation of quality management systems in its public health laboratories. Coupled with focused mentorship, this programme aimed to help MOH achieve the goals of the National Laboratory Strategic Plan to provide quality and timely clinical diagnoses. OBJECTIVES: This article describes the impact of implementing SLMTA in Sekgoma Memorial Hospital Laboratory (SMHL) in Serowe, Botswana. METHODS: SLMTA implementation in SMHL included trainings, improvement projects, site visits and focused mentorship. To measure progress, audits using the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist were conducted at baseline and exit of the programme, with scores corresponding to a zero- to five-star scale. Turnaround times, customer satisfaction, and several other health service indicators were tracked. RESULTS: The laboratory scored 53% (zero stars) at the baseline audit and 80% (three stars) at exit. Nearly three years later, the laboratory scored 85% (four stars) in an official audit conducted by the African Society for Laboratory Medicine. Turnaround times became shorter after SLMTA implementation, with reductions ranging 19% to 52%; overall patient satisfaction increased from 56% to 73%; and clinician satisfaction increased from 41% to 72%. Improvements in inventory management led to decreases in discarded reagents, reducing losses from US $18 000 in 2011 to $40 in 2013. CONCLUSION: The SLMTA programme contributed to enhanced performance of the laboratory, which in turn yielded potential positive impacts for patient care at the hospital. PMID- 29043189 TI - Innovative strategies for a successful SLMTA country programme: The Rwanda story. AB - BACKGROUND: In 2009, to improve the performance of laboratories and strengthen healthcare systems, the World Health Organization Regional Office for Africa (WHO AFRO) and partners launched two initiatives: a laboratory quality improvement programme called Strengthening Laboratory Management Toward Accreditation (SLMTA), and what is now called the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA). OBJECTIVES: This study describes the achievements of Rwandan laboratories four years after the introduction of SLMTA in the country, using the SLIPTA scoring system to measure laboratory progress. METHODS: Three cohorts of five laboratories each were enrolled in the SLMTA programme in 2010, 2011 and 2013. The cohorts used SLMTA workshops, improvement projects, mentorship and quarterly performance-based financing incentives to accelerate laboratory quality improvement. Baseline, exit and follow-up audits were conducted over a two-year period from the time of enrolment. Audit scores were used to categorise laboratory quality on a scale of zero (< 55%) to five (95% - 100%) stars. RESULTS: At baseline, 14 of the 15 laboratories received zero stars with the remaining laboratory receiving a two-star rating. At exit, five laboratories received one star, six received two stars and four received three stars. At the follow-up audit conducted in the first two cohorts approximately one year after exit, one laboratory scored two stars, five laboratories earned three stars and four laboratories, including the National Reference Laboratory, achieved four stars. CONCLUSION: Rwandan laboratories enrolled in SLMTA showed improvement in quality management systems. Sustaining the gains and further expansion of the SLMTA programme to meet country targets will require continued programme strengthening. PMID- 29043190 TI - SLIPTA e-Tool improves laboratory audit process in Vietnam and Cambodia. AB - BACKGROUND: The Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist is used worldwide to drive quality improvement in laboratories in developing countries and to assess the effectiveness of interventions such as the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme. However, the paper-based format of the checklist makes administration cumbersome and limits timely analysis and communication of results. DEVELOPMENT OF E-TOOL: In early 2012, the SLMTA team in Vietnam developed an electronic SLIPTA checklist tool. The e-Tool was pilot tested in Vietnam in mid-2012 and revised. It was used during SLMTA implementation in Vietnam and Cambodia in 2012 and 2013 and further revised based on auditors' feedback about usability. OUTCOMES: The SLIPTA e-Tool enabled rapid turn-around of audit results, reduced workload and language barriers and facilitated analysis of national results. Benefits of the e-Tool will be magnified with in-country scale-up of laboratory quality improvement efforts and potential expansion to other countries. PMID- 29043191 TI - Using standard and institutional mentorship models to implement SLMTA in Kenya. AB - BACKGROUND: Kenya is home to several high-performing internationally-accredited research laboratories, whilst most public sector laboratories have historically lacked functioning quality management systems. In 2010, Kenya enrolled an initial eight regional and four national laboratories into the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme. To address the challenge of a lack of mentors for the regional laboratories, three were paired, or 'twinned', with nearby accredited research laboratories to provide institutional mentorship, whilst the other five received standard mentorship. OBJECTIVES: This study examines results from the eight regional laboratories in the initial SLMTA group, with a focus on mentorship models. METHODS: Three SLMTA workshops were interspersed with three-month periods of improvement project implementation and mentorship. Progress was evaluated at baseline, mid-term, and exit using the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) audit checklist and scores were converted into a zero- to five-star scale. RESULTS: At baseline, the mean score for the eight laboratories was 32%; all laboratories were below the one-star level. At mid-term, all laboratories had measured improvements. However, the three twinned laboratories had increased an average of 32 percentage points and reached one to three stars; whilst the five non-twinned laboratories increased an average of 10 percentage points and remained at zero stars. At exit, twinned laboratories had increased an average 12 additional percentage points (44 total), reaching two to four stars; non-twinned laboratories increased an average of 28 additional percentage points (38 total), reaching one to three stars. CONCLUSION: The partnership used by the twinning model holds promise for future collaborations between ministries of health and state-of-the-art research laboratories in their regions for laboratory quality improvement. Where they exist, such laboratories may be valuable resources to be used judiciously so as to accelerate sustainable quality improvement initiated through SLMTA. PMID- 29043192 TI - Driving hospital transformation with SLMTA in a regional hospital in Cameroon. AB - BACKGROUND: Inspired by the transformation of the Regional Hospital Buea laboratory through implementation of the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme, hospital management adapted the SLMTA toolkit to drive hospital-wide quality improvement. OBJECTIVE: This paper describes changes in the hospital following the quality improvement activities in hygiene and sanitation, the outpatient waiting area and the surgical and maternity wards. METHODS: In March 2011, hospital management established a quality improvement task force and created a hospital-wide quality improvement roadmap, following the SLMTA model. The roadmap comprised improvement projects, accountability plans, patient feedback forms and log books to track quality indicators including patient wait time, satisfaction level, infection rates, birth outcomes and hospital revenue. RESULTS: There was steady improvement in service delivery during the 11 months after the introduction of the quality improvement initiatives: patient wait time at the reception was reduced from three hours to less than 30 minutes and patient satisfaction increased from 15% to 60%. Treatment protocols were developed and documented for various units, infrastructure and workflow processes were improved and there was increased staff awareness of the importance of providing quality services. Maternal infection rates dropped from 3% to 0.5% and stillbirths from 5% to < 1%. The number of patients increased as a result of improved services, leading to a 25% increase in hospital revenue. CONCLUSION: The SLMTA programme was adapted successfully to meet the needs of the entire hospital. Such a programme has the potential to impact positively on hospital quality systems; consideration should be made for development of a formal SLMTA-like programme for hospital quality improvement. PMID- 29043193 TI - Progressing beyond SLMTA: Are internal audits and corrective action the key drivers of quality improvement? AB - BACKGROUND: Kenya has implemented the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme to facilitate quality improvement in medical laboratories and to support national accreditation goals. Continuous quality improvement after SLMTA completion is needed to ensure sustainability and continue progress toward accreditation. METHODS: Audits were conducted by qualified, independent auditors to assess the performance of five enrolled laboratories using the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist. End-of-programme (exit) and one year post programme (surveillance) audits were compared for overall score, star level (from zero to five, based on scores) and scores for each of the 12 Quality System Essential (QSE) areas that make up the SLIPTA checklist. RESULTS: All laboratories improved from exit to surveillance audit (median improvement 38 percentage points, range 5-45 percentage points). Two laboratories improved from zero to one star, two improved from zero to three stars and one laboratory improved from three to four stars. The lowest median QSE scores at exit were: internal audit; corrective action; and occurrence management and process improvement (< 20%). Each of the 12 QSEs improved substantially at surveillance audit, with the greatest improvement in client management and customer service, internal audit and information management (>= 50 percentage points). The two laboratories with the greatest overall improvement focused heavily on the internal audit and corrective action QSEs. CONCLUSION: Whilst all laboratories improved from exit to surveillance audit, those that focused on the internal audit and corrective action QSEs improved substantially more than those that did not; internal audits and corrective actions may have acted as catalysts, leading to improvements in other QSEs. Systematic identification of core areas and best practices to address them is a critical step toward strengthening public medical laboratories. PMID- 29043194 TI - Decentralised facility-based training as an alternative model for SLMTA implementation: The Cameroon experience. AB - BACKGROUND: The Strengthening Laboratory Management Toward Accreditation (SLMTA) programme is designed to build institutional capacity to help strengthen the tiered laboratory system. Most countries implement the SLMTA three-workshop series using a centralised model, whereby participants from several laboratories travel to one location to be trained together. OBJECTIVES: We assessed the effectiveness and cost of conducting SLMTA training in a decentralised manner as compared to centralised training. METHODS: SLMTA was implemented in five pilot laboratories in Cameroon between October 2010 and October 2012 by means of a series of workshops, laboratory improvement projects and on-site mentorship. The first workshop was conducted in the traditional centralised approach. The second and third workshops were decentralised, delivered on-site at each of the five enrolled laboratories. Progress was monitored by repeated audits using the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist. RESULTS: Audit scores for all laboratories improved steadily through the course of the programme. Median improvement was 11 percentage points after the first (centralised) training and an additional 24 percentage points after the second (decentralised) training. The estimated per-laboratory cost of the two training models was approximately the same at US$21 000. However, in the decentralised model approximately five times as many staff members were trained, although it also required five times the amount of trainer time. CONCLUSION: Decentralised SLMTA training was effective in improving laboratory quality and should be considered as an alternative to centralised training. PMID- 29043195 TI - Perceptions and attitudes toward SLMTA amongst laboratory and hospital professionals in Ethiopia. AB - BACKGROUND: Strengthening Laboratory Management Toward Accreditation (SLMTA) is a competency-based management training programme. Assessing health professionals' views of SLMTA provides feedback to inform program planning, implementation and evaluation of SLMTA's training, communication and mentorship components. OBJECTIVES: To assess laboratory professionals' and hospital chief executive officers' (CEOs) perceptions and attitudes toward the SLMTA programme in Ethiopia. METHODS: A cross-sectional descriptive survey was conducted in March 2013 using a structured questionnaire to collect qualitative data from 72 laboratory professionals and hospital CEOs from 17 health facilities, representing all regions and two city administrations in Ethiopia. Focus groups were conducted with laboratory professionals and hospital administration to gain insight into the strengths and challenges of the SLMTA programme so as to guide future planning and implementation. RESULTS: Ethiopian laboratory professionals at all levels had a supportive attitude toward the SLMTA programme. They believed that SLMTA substantially improved laboratory services and acted as a catalyst for total healthcare reform and improvement. They also noted that the SLMTA programme achieved marked progress in laboratory supply chain, sample referral, instrument maintenance and data management systems. In contrast, nearly half of the participating hospital CEOs, especially those associated with low-scoring laboratories, were sceptical about the SLMTA programme, believing that the benefits of SLMTA were outweighed by the level of human resources and time commitment required. They also voiced concerns about the cost and sustainability of SLMTA. CONCLUSION: This study highlights the need for stronger engagement and advocacy with hospital administration and the importance of addressing concerns about the cost and sustainability of the SLMTA programme. PMID- 29043196 TI - Maximising mentorship: Variations in laboratory mentorship models implemented in Zimbabwe. AB - BACKGROUND: Laboratory mentorship has proven to be an effective tool in building capacity and assisting laboratories in establishing quality management systems. The Zimbabwean Ministry of Health and Child Welfare implemented four mentorship models in 19 laboratories in conjunction with the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme. OBJECTIVES: This study outlines how the different models were implemented, cost involved per model and results achieved. METHODS: Eleven of the laboratories had been trained previously in SLMTA (Cohort I). They were assigned to one of three mentorship models based on programmatic considerations: Laboratory Manager Mentorship (Model 1, four laboratories); One Week per Month Mentorship (Model 2, four laboratories); and Cyclical Embedded Mentorship (Model 3, three laboratories). The remaining eight laboratories (Cohort II) were enrolled in Cyclical Embedded Mentorship incorporated with SLMTA training (Model 4). Progress was evaluated using a standardised audit checklist. RESULTS: At SLMTA baseline, Model 1-3 laboratories had a median score of 30%. After SLMTA, at mentorship baseline, they had a median score of 54%. At the post-mentorship audit they reached a median score of 75%. Each of the three mentorship models for Cohort I had similar median improvements from pre- to post-mentorship (17 percentage points for Model 1, 23 for Model 2 and 25 for Model 3; p > 0.10 for each comparison). The eight Model 4 laboratories had a median baseline score of 24%; after mentorship, their median score increased to 63%. Median improvements from pre-SLMTA to post-mentorship were similar for all four models. CONCLUSION: Several mentorship models can be considered by countries depending on the available resources for their accreditation implementation plan. PMID- 29043197 TI - Weighing the costs: Implementing the SLMTA programme in Zimbabwe using internal versus external facilitators. AB - BACKGROUND: In 2010, the Zimbabwe Ministry of Health and Child Welfare (MoHCW) adopted the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme as a tool for laboratory quality systems strengthening. OBJECTIVES: To evaluate the financial costs of SLMTA implementation using two models (external facilitators; and internal local or MoHCW facilitators) from the perspective of the implementing partner and to estimate resources needed to scale up the programme nationally in all 10 provinces. METHODS: The average expenditure per laboratory was calculated based on accounting records; calculations included implementing partner expenses but excluded in-kind contributions and salaries of local facilitators and trainees. We also estimated theoretical financial costs, keeping all contextual variables constant across the two models. Resource needs for future national expansion were estimated based on a two-phase implementation plan, in which 12 laboratories in each of five provinces would implement SLMTA per phase; for the internal facilitator model, 20 facilitators would be trained at the beginning of each phase. RESULTS: The average expenditure to implement SLMTA in 11 laboratories using external facilitators was approximately US$5800 per laboratory; expenditure in 19 laboratories using internal facilitators was approximately $6000 per laboratory. The theoretical financial cost of implementing a 12-laboratory SLMTA cohort keeping all contextual variables constant would be approximately $58 000 using external facilitators; or $15 000 using internal facilitators, plus $86 000 to train 20 facilitators. The financial cost for subsequent SLMTA cohorts using the previously-trained internal facilitators would be approximately $15 000, yielding a break-even point of 2 cohorts, at $116 000 for either model. Estimated resources required for national implementation in 120 laboratories would therefore be $580 000 using external facilitators ($58 000 per province) and $322 000 using internal facilitators ($86 000 for facilitator training in each of two phases plus $15 000 for SLMTA implementation in each province). CONCLUSION: Investing in training of internal facilitators will result in substantial savings over the scale-up of the programme. Our study provides information to assist policy makers to develop strategic plans for investing in laboratory strengthening. PMID- 29043198 TI - Working toward a sustainable laboratory quality improvement programme through country ownership: Mozambique's SLMTA story. AB - BACKGROUND: Launched in 2009, the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme has emerged as an innovative approach for the improvement of laboratory quality. In order to ensure sustainability, Mozambique embedded the SLMTA programme within the existing Ministry of Health (MOH) laboratory structure. OBJECTIVE: This article outlines the steps followed to establish a national framework for quality improvement and embedding the SLMTA programme within existing MOH laboratory systems. METHODS: The MOH adopted SLMTA as the national laboratory quality improvement strategy, hired a dedicated coordinator and established a national laboratory quality technical working group comprising mostly personnel from key MOH departments. The working group developed an implementation framework for advocacy, training, mentorship, supervision and audits. Emphasis was placed on building local capacity for programme activities. After receiving training, a team of 25 implementers (18 from the MOH and seven from partner organisations) conducted baseline audits (using the Stepwise Laboratory Quality Improvement Process Towards Accreditation [SLIPTA] checklist), workshops and site visits in six reference and two central hospital laboratories. Exit audits were conducted in six of the eight laboratories and their results are presented. RESULTS: The six laboratories demonstrated substantial improvement in audit scores; median scores increased from 35% at baseline to 57% at exit. It has been recommended that the National Tuberculosis Reference Laboratory apply for international accreditation. CONCLUSION: Successful implementation of SLMTA requires partnership between programme implementers, whilst effectiveness and long-term viability depend on country leadership, ownership and commitment. Integration of SLMTA into the existing MOH laboratory system will ensure durability beyond initial investments. The Mozambican model holds great promise that country leadership, ownership and institutionalisation can set the stage for programme success and sustainability. PMID- 29043199 TI - Making great strides in medical laboratory quality. PMID- 29043200 TI - A comprehensive review of the SLMTA literature part 1: Content analysis and future priorities. AB - BACKGROUND: Since its introduction in 2009, the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme has been implemented widely throughout Africa, as well as in the Caribbean, Central and South America, and Southeast Asia. OBJECTIVE: We compiled results from local, national and global studies to provide a broad view of the programme and identify directions for the future. The review consists of two companion papers; this paper focuses on content analysis, examining various thematic components of the SLMTA programme and future priorities. METHODS: A systematic literature search identified 28 published articles about implementing the SLMTA programme. Results for various components of the SLMTA programme were reviewed and summarised. RESULTS: Local and national studies provide substantial information on previous experiences with quality management systems; variations on SLMTA implementation; building human resource capacity for trainers, mentors and auditors; the benefits and effectiveness of various types of mentorship; the importance of management buy-in to ensure country ownership; the need to instill a culture of quality in the laboratory; success factors and challenges; and future directions for the programme. CONCLUSIONS: Local, national and global results suggest that the SLMTA programme has been overwhelmingly successful in transforming laboratory quality management. There is an urgent need to move forward in four strategic directions: progression (continued improvement in SLMTA laboratories), saturation (additional laboratories within countries that have implemented SLMTA), expansion (implementation in additional countries), and extension (adapting SLMTA for implementation beyond the laboratory), to lead to transformation of overall health systems and patient care. PMID- 29043201 TI - A comprehensive review of the SLMTA literature part 2: Measuring success. AB - BACKGROUND: Since its introduction in 2009, the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme has been implemented in 617 laboratories in 47 countries. OBJECTIVE: We completed a systematic review of the published literature on SLMTA. The review consists of two companion papers; this article examines quantitative evidence presented in the publications along with a meta-analysis of selected results. METHODS: We identified 28 published articles with data from SLMTA implementation. The SLMTA programme was evaluated through audits based on a standard checklist, which is divided into 12 sections corresponding to the 12 Quality System Essentials (QSEs). Several basic service delivery indicators reported by programmes were also examined. Results for various components of the programme were reviewed and summarised; a meta-analysis of QSE results grouped by the three stages of the quality cycle was conducted for 126 laboratories in 12 countries. RESULTS: Global programme data show improved quality in SLMTA laboratories in every country, with average improvements on audit scores of 25 percentage points. Meta-analysis identified Improvement Management as the weakest stage, with internal audit (8%) and occurrence management (16%) showing the lowest scores. Studies documented 19% - 95% reductions in turn-around times, 69% - 93% reductions in specimen rejection rates, 76% - 81% increases in clinician satisfaction rates, 67% - 85% improvements in external quality assessment results, 50% - 66% decreases in nonconformities and 67% increases in staff punctuality. CONCLUSIONS: The wide array of results reported provides a comprehensive picture of the SLMTA programme overall, suggesting a substantive impact on provision of quality laboratory services and patient care. These comprehensive results establish a solid data driven foundation for program improvement and further expansion. PMID- 29043202 TI - Why have doctors stopped asking for autopsies? Will a different type of autopsy change this? PMID- 29043203 TI - Endomyocardial fibrosis. PMID- 29043204 TI - Autopsy findings of miliary tuberculosis in a renal transplant recipient. AB - Miliary tuberculosis is a lethal form of disseminated tuberculosis (TB), deriving its name from the millet-seed-sized granulomas in multiple organs. As TB still remains a leading cause of morbidity and mortality in India, its disseminated forms need to be diagnosed early to ensure more aggressive treatment at the earliest possible time. However, a considerable number of cases are missed ante mortem. We discuss the case of a 32-year-old immunocompromised, non-HIV patient with an ante-mortem diagnosis of pulmonary TB. However, multiple organ involvement by Mycobacterium tuberculosis was demonstrated on autopsy. This case highlights the role of autopsy as a research and learning tool, and prudential clinico-pathologic correlation, which will improve clinical outcomes in the future. PMID- 29043205 TI - An extremely rare case of concurrent BRAF V600E mutation driven hairy cell leukemia and melanoma: case report and review of literature. AB - BRAF protein is a serine/threonine kinase with 766 amino acids. Approximately 15% of human cancers harbor BRAF mutations as well as other BRAF anomalies (amplifications, fusions). Somatic mutations mainly occur in the catalytic kinase domain (CR3), and the predominant mutation is p.V600E which is the substitution of glutamic acid (E) for valine (V) as result of a mutation at codon 600 of the kinase domain. To our knowledge, the vast majority of the cancers have non germline BRAF mutations. Here we describe a case of a 60-year-old female with a history of hairy cell leukemia (HCL) who presented with aphasia and forgetfulness. A follow-up Brain CT scan showed three distinct brain lesions which were found to be diagnostic of melanoma (confirmed by immunohistochemistry) with no evidence of a concurrent brain involvement by a B-cell neoplasm. Molecular studies confirmed the same BRAF p.V600E mutation in both malignancies (hairy cell leukemia and melanoma). Thereafter the patient was started on BRAF inhibitor treatment and is now symptom-free after one year of follow up. Having two concurrent malignancies with a shared BRAF mutation is extremely rare and makes this an excellent example of a genomic marker-driven treatment in two histologically and immunophenotypically distinct tumors. PMID- 29043206 TI - Spontaneous regression of a pulmonary adenocarcinoma after core needle biopsy. AB - Spontaneous regression (SR) of cancer, especially lung cancer, is a rare biological event with a mechanism that is not currently understood. Immunological mechanisms seem to be the stronger explanation in SR of a lung cancer. We report the rare case of SR of a lung adenocarcinoma stage IA, in a 75-year-old man, which was incidentally diagnosed and histologically confirmed. Due to the patient's comorbidities and his poor pulmonary function, stereotactic radiotherapy was scheduled. However, by the time the treatment was due to start, the tumor was no longer detectable. PMID- 29043207 TI - Mantle cell lymphoma: involvement of nodal and extranodal sites in the head and neck, with multifocal oral lesions. AB - Mantle cell lymphoma (MCL) is a malignant B-cell neoplasm, which comprises monomorphic and small- to medium-sized mantle zone-derived lymphoid cells. It is characterized by chromosomal translocation t(11;14)(q13;q32) and CCND1 truncation, resulting in cell cycle deregulation. It is an aggressive type of non Hodgkin lymphoma with a propensity to present with extranodal involvement. This study shows the case of an 80-year-old Caucasian male who complained of a 2-month progressive swelling on the right side of his face. The magnetic resonance imaging exam showed multifocal involvement of the head and neck, including oral manifestations, bilateral parotid glands, palate, tongue, and floor of the mouth. An incisional biopsy of the tumor mass was performed. The morphological and immunophenotypic findings were consistent with the diagnosis of MCL. The patient died 4 months later, without any chance of undergoing a therapeutic approach. Although MCL is a rare condition, it should be subjected to a differential diagnosis when affecting the maxillofacial area. Imaging exams and both immunohistochemical and morphological analyses are needed to reach the correct diagnosis. Here, we present an unusual MCL with multifocal involvement of the head and neck. PMID- 29043208 TI - Phosphaturic mesenchymal tumor (PMT): exceptionally rare disease, yet crucial not to miss. AB - Phosphaturic mesenchymal tumors (PMTs) are very rare tumors which are frequently associated with Tumor Induced Osteomalacia (TIO), a paraneoplastic syndrome that manifests as renal phosphate wasting. The tumor cells produce a peptide hormone like substance known as fibroblast growth factor 23 (FGF23), a physiologic regulator of phosphate levels. FGF23 decreases proximal tubule reabsorption of phosphates and inhibits 1-alpha-hydroxylase, which reduces levels of 1-alpha, 25 dihydroxyvitamine D3. Thus, overexpression of FGF23 by the tumor cells leads to increased excretion of phosphate in the urine, mobilization of calcium and phosphate from bones, and the reduction of osteoblastic activity, ultimately resulting in widespread osteomalacia. Patients typically present with gradual muscular weakness and diffuse bone pain from pathologic fractures. The diagnosis is often delayed due to the non-specific nature of the symptoms and lack of clinical suspicion. While serum phosphorus and FGF23 testing can assist in making a clinical diagnosis of PMT, the responsible tumor is often difficult to locate. The pathologic diagnosis is often missed due to the rarity of PMTs and histologic overlap with other mesenchymal neoplasms. While patients can experience severe disabilities without treatment, excision is typically curative and results in a dramatic reversal of symptoms. Histologically, PMT has a variable appearance and can resemble other low grade mesenchymal tumors. Even though very few cases of PMT have been reported in the world literature, it is very important to consider this diagnosis in all patients with hypophosphatemic osteomalacia. Here we present a patient who suffered for almost 5 years without a diagnosis. Ultimately, the PMT was located on a 68Ga-DOTA TATE PET/CT scan and subsequently confirmed by histologic and immunohistologic study. Interestingly, strong positivity for FGFR1 by IHC might be related to the recently described FN1-FGFR1 fusion. Upon surgical removal, the patient's phosphate and FGF23 levels returned to normal and the patient's symptoms resolved. PMID- 29043209 TI - Perianal Langerhans cell histiocytosis: a rare presentation in an adult male. AB - Langerhans cell histiocytosis (LCH) is a rare disease characterized by a proliferation of cells that show immunophenotypic and ultrastructural similarities with antigen-presenting Langerhans cells of mucosal sites and skin. LCH in adults is rare, and there are still many undiagnosed/misdiagnosed patients. We describe LCH involvement of the perianal region of a 33-year-old male with a previous history of diabetes insipidus. The differential diagnosis and all the reported cases of LCH of the perianal skin involvement since its description in 1984 till 2016 are discussed. LCH should be considered in the differential diagnosis of perianal ulceration, especially in young patients where topical drug treatment has failed. The history of previous central diabetes insipidus of unknown etiology demands imaging studies in order to rule out central involvement of the disease. PMID- 29043210 TI - Pulmonary placental transmogrification associated with adenocarcinoma of the lung: a case report with a comprehensive review of the literature. AB - Pulmonary placental transmogrification (PT) is a rare entity with less than 40 cases reported in the literature. Most reported cases are associated with either bullous emphysema or with pulmonary fibrochondromatous hamartomas. We present only the second case of PT associated with adenocarcinoma of the lung. A 67-year old female with multiple chronic medical ailments presented with shortness of breath and was found to have a 6-cm mass in the upper lobe of her right lung. A computed tomography (CT) guided core biopsy was performed that showed a well differentiated adenocarcinoma. Interestingly the normal lung tissue showed placental villous architecture. A unique feature of our case is that the diagnosis was made on a needle core biopsy, unlike all the other cases in the literature. We also provide a comprehensive review of this rare entity. PMID- 29043211 TI - Native-valve endocarditis caused by Achromobacter xylosoxidans: a case report and review of literature. AB - Achromobacter xylosoxidans is a Gram-negative aerobic bacterium first described by Yabuuchi and Ohyama in 1971. A. xylosoxidans is frequently found in aquatic environments. Abdominal, urinary tract, ocular, pneumonia, meningitis, and osteomyelitis are the most common infections. Infective endocarditis is rare. As far as we know, until now, only 19 cases have been described, including this current report. We report the case of community-acquired native valve endocarditis caused by A. xylosoxidans in an elderly patient without a concomitant diagnosis of a malignancy or any known immunodeficiency. The patient presented with a 2-month history of fever, weight loss, and progressive dyspnea. On physical examination, mitral and aortic murmurs were present, along with Janeway's lesions, and a positive blood culture for A. xylosoxidans. The transesophageal echocardiogram showed vegetation in the aortic valve, which was consistent with the diagnosis of infective endocarditis. PMID- 29043212 TI - Antibacterial, Anti-Diarrhoeal, Analgesic, Cytotoxic Activities, and GC-MS Profiling of Sonneratia apetala (Buch.-Ham.) Seed. AB - Fruits of Sonneratia apetala (Buch.-Ham.), (English: mangrove apple, Bengali: keora) both seeds and pericarps, are largely consumed as food besides their enormous medicinal application. The fruit seeds have high content of nutrients and bioactive components. The seeds powder of S. apetala was successively fractionated using n-hexane, diethyl ether, chloroform, ethyl acetate, and methanol. The fractions were used to evaluate antibacterial, anti-diarrhoeal, analgesic, and cytotoxic activities. Methanol fraction of seeds (MeS) stronly inhibited Escherichia coli strains, Salmonella Paratyphi A, Salmonella Typhi, Shigella dysenteriae, and Staphylococcus aureus except Vibrio cholerae at 500 MUg/disc. All the fractions strongly inhibited castor oil induced diarrhoeal episodes and onset time in mice at 500 mg extract/kg body weight (P<0.001). At the same concentration, MeS had the strongest inhibitory activity on diarrhoeal episodes, whereas the n-hexane fraction (HS) significantly (P<0.05) prolonged diarrhoeal onset time as compared to positive control. Similarly, HS (P<0.005) inhibited acetic acid induced writhing in mice at 500 mg extract/kg, more than any other fraction. HS and diethyl ether fractions of seed strongly increased reaction time of mice in hot plate test at 500 mg extract/kg. All the fractions showed strong cytotoxic effects in brine shrimp lethality tests. Gas chromatography-mass spectrometry analysis of HS led to the identification of 23 compounds. Linoleic acid (29.9%), palmitic acid (23.2%), ascorbyl palmitate (21.2%), and stearic acid (10.5%) were the major compounds in HS. These results suggest that seeds of S. apetala could be of great use as nutraceuticals. PMID- 29043213 TI - Sargassum yezoense Extract Inhibits Carbohydrate Digestive Enzymes In Vitro and Alleviates Postprandial Hyperglycemia in Diabetic Mice. AB - In this study, we investigated whether Sargassum yezoense extract (SYE) could inhibit alpha-glucosidase and alpha-amylase activities, and alleviate postprandial hyperglycemia in streptozotocin (STZ)-induced diabetic mice. Freeze dried S. yezoense was extracted with 80% ethanol and concentrated for use in this study. The hypoglycemic effect was determined by evaluating the inhibitory activities of SYE against alpha-glucosidase and alpha-amylase as well as its ability to decrease postprandial blood glucose levels. The half-maximal inhibitory concentrations of SYE against alpha-glucosidase and alpha-amylase were 0.078+/-0.004 and 0.212+/-0.064 mg/mL, respectively. SYE was a more effective inhibitor of alpha-glucosidase and alpha-amylase activities than the positive control, acarbose. The increase in postprandial blood glucose levels was significantly alleviated in the SYE group compared with that in the control group of STZ-induced diabetic mice. Furthermore, the area under the curves significantly decreased with SYE administration in STZ-induced diabetic mice. These results suggest that SYE is a potent inhibitor of alpha-glucosidase and alpha-amylase activities and alleviates postprandial hyperglycemia caused by dietary carbohydrates. PMID- 29043214 TI - Vitamin A Improves Hyperglycemia and Glucose-Intolerance through Regulation of Intracellular Signaling Pathways and Glycogen Synthesis in WNIN/GR-Ob Obese Rat Model. AB - Vitamin A and its metabolites modulate insulin resistance and regulate stearoyl CoA desaturase 1 (SCD1), which are also known to affect insulin resistance. Here, we tested, whether vitamin A-mediated changes in insulin resistance markers are associated with SCD1 regulation or not. For this purpose, 30-week old male lean and glucose-intolerant obese rats of WNIN/GR-Ob strain were given either a stock or vitamin A-enriched diet, i.e. 2.6 mg or 129 mg vitamin A/kg diet, for 14 weeks. Compared to the stock diet, vitamin A-enriched diet feeding improved hyperglycemia and glucose-clearance rate in obese rats and no such changes were seen in lean rats receiving identical diets. These changes were corroborated with concomitant increase in circulatory insulin and glycogen levels of liver and muscle (whose insulin signaling pathway genes were up-regulated) in obese rats. Further, the observed increase in muscle glycogen content in these obese rats could be explained by increased levels of the active form of glycogen synthase, the key regulator of glycogen synthesis pathway, possibly inactivated through increased phosphorylation of its upstream inhibitor, glycogen synthase kinase. However, the unaltered hepatic SCD1 protein expression (despite decreased mRNA level) and increased muscle-SCD1 expression (both at gene and protein levels) suggest that vitamin A-mediated changes on glucose metabolism are not associated with SCD1 regulation. Chronic consumption of vitamin A-enriched diet improved hyperglycemia and glucose-intolerance, possibly, through the regulation of intracellular signaling and glycogen synthesis pathways of muscle and liver, but not associated with SCD1. PMID- 29043215 TI - Inhibitory Effect of Hizikia fusiformis Solvent-Partitioned Fractions on Invasion and MMP Activity of HT1080 Human Fibrosarcoma Cells. AB - Matrix metalloproteinases (MMPs) are endopeptidases that take significant roles in extracellular matrix degradation and therefore linked to several complications such as metastasis of cancer progression, oxidative stress, and hepatic fibrosis. Hizikia fusiformis, a brown algae, was reported to possess bioactivities, including but not limited to, antiviral, antimicrobial, and anti-inflammatory partly due to bioactive polysaccharide contents. In this study, the potential of H. fusiformis against cancer cell invasion was evaluated through the MMP inhibitory effect in HT1080 fibrosarcoma cells in vitro. H. fusiformis crude extract was fractionated with organic solvents, H2O, n-BuOH, 85% aqueous MeOH, and n-hexane (n-Hex). The non-toxicity of the fractions was confirmed by MTT assay. All fractions inhibited the enzymatic activities of MMP-2 and MMP-9 according to the gelatin zymography assay. Cell migration was also significantly inhibited by the n-Hex fraction. In addition, both gene and protein expressions of MMP-2 and -9, and tissue inhibitor of MMPs (TIMPs) were evaluated by reverse transcription-polymerase chain reaction and Western blotting, respectively. The fractions suppressed the mRNA and protein levels of MMP-2, MMP-9 while elevating the TIMP-1 and TIMP-2, with the H2O fraction being the least effective while n Hex fraction the most. Collectively, the n-Hex fraction from brown algae H. fusiformis could be a potential inhibitor of MMPs, suggesting the presence of various derivatives of polysaccharides in high amounts. PMID- 29043216 TI - Proximate, Phytochemical, and In Vitro Antimicrobial Properties of Dried Leaves from Ocimum gratissimum. AB - Ocimum gratissimum is a common plant in the tropics and has been used in food and medicine. Its usage in food and medicine could be attributed to its phtyochemical and antimicrobial properties. In this study we investigated the proximate, phytochemical, and antimicrobial attributes of air dried leaves of O. gratissimum. The aqueous extract was found to contain phtyochemicals with alkaloid and saponin present in appreciable amounts. The proximate analysis (crude protein and crude fibre content were 15.075% and 17.365%, respectively) showed that the leaf could be a good source of protein and fibre. The aqueous ethanolic extract of the leaf exhibited activity against a wider range of organisms when compared to the aqueous extract at the investigated concentrations. Aqueous ethanolic extracts of O. gratissimum leaf was active against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Bacillus cereus and the aqueous extract of the leaf was active against P. aeruginosa. PMID- 29043217 TI - Antioxidant and Antimicrobial Activities of Quinoa (Chenopodium quinoa Willd.) Seeds Cultivated in Korea. AB - The objective of this study was to investigate the antioxidant and antimicrobial properties of quinoa cultivated in Korea and to compare it with imported quinoa from the USA and Peru. The highest amount of total flavonoid contents (TFC) with 20.91 mg quercetin equivalents/100 g was measured in quinoa seed extract cultivated in Korea, while the total phenolic contents (TPC) were significantly higher in quinoa from the USA (16.28 mg gallic acid equivalents/100 g). In addition, quinoa extracts cultivated in Korea displayed a superior antioxidant ability in both, ferric reducing antioxidant power and 1,1-diphenyl-2 picrylhydrazyl values. There was a high correlation between TFC and antioxidant activity and a low correlation between TPC and antioxidant activity. The antimicrobial activity of the quinoa extracts was determined using a disc diffusion assay and optical density method. In both assays, the quinoa seed extracts did not have strong antimicrobial activity against foodborne bacteria, including Staphylococcus aureus, Listeria monocytogenes, Bacillus cereus, Escherichia coli, Salmonella Typhimurium, and Campylobacter jejuni. PMID- 29043218 TI - Evaluation of Antioxidant and Antimicrobial Activities of Ethanol Extracts of Three Kinds of Strawberries. AB - The antioxidant and antimicrobial activities of three kinds of strawberry ethanol extracts from Robus corchorifolius L. f. (RCL), Rubus parvifolius L. var. parvifolius (RPL), and Duchesnea chrysantha Miq. (DCM) were investigated. The RPL was highest (P<0.05) in phenolic, flavonoid, and anthocyanin contents. 2,2 Diphenyl-1-picrylhydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical scavenging activities of RPL and DCM extracts were higher than that of RCL (P<0.05). Hydrogen peroxide scavenging activity of RPL was high compared to DCM and RCL (P<0.05). RCL exhibited a significant (P<0.05) potent antioxidant activity in nitric oxide radical inhibition. Inhibition diameter zone (nearest mm) of extracts against the test bacteria ranged from 11.5 in RCL to 12.5 in DCM against Staphylococcus aureus, from 10.5 in RCL to 13.5 in DCM against Streptococcus pneumoniae, from 8.5 in DCM to 10.5 in RCL against Escherichia coli, and the same inhibition of 10 mm in three of the extracts against Klebsiella pneumoniae. However, there was no inhibition against fungi Aspergillus niger and Candida albicans. Three of the extracts had the same minimum inhibitory concentration values of 12.50, 12.50, and 6.25 MUg/mL against S. aureus, K. pneumoniae, and S. pneumoniae, respectively. On the other hand, MIC values of 12.50, 12.50, and 6.50 MUg/mL were recorded for RPL, DCM, and RCL against E. coli, respectively. The result of present study revealed that extracts from three kinds of strawberries could be potential candidates as antioxidant and antimicrobial sources for functional food industries. PMID- 29043219 TI - Optimization of Maillard Reaction between Glucosamine and Other Precursors by Measuring Browning with a Spectrophotometer. AB - The individual Maillard reactions of glucose, glucosamine, cyclohexylamine, and benzylamine were studied at a fixed temperature of 120 degrees C under different durations by monitoring the absorbance of the final products at 425 nm. Glucosamine was the most individually reactive compound, whereas the reactions of glucose, cyclohexylamine, and benzylamine were not significantly different from each other. Maillard reactions of reaction mixtures consisting of glucosamine cyclohexylamine, glucosamine-benzylamine, glucose-cyclohexylamine, and glucose benzylamine were also studied using different concentration ratios under different durations at a fixed temperature of 120 degrees C and pH 9. Maillard reactions in the pairs involving glucosamine were observed to be more intense than those of the pairs involving glucose. Finally, with respect to the concentration ratios, it was observed that in most instances, optimal activity was realized, when the reaction mixtures were in the ratio of 1:1. PMID- 29043220 TI - Enhancement of Antioxidant Quality of Green Leafy Vegetables upon Different Cooking Method. AB - Antioxidant rich green leafy vegetables including garden spinach leaf, water spinach leaf, Indian spinach leaf, and green leaved amaranth were selected to evaluate the effects of water boiling and oil frying on their total phenolic content (TPC), total flavonoid content (TFC), reducing power (RP), and antioxidant capacity. The results revealed that there was a significant increase in TPC, TFC, and RP in all the selected vegetables indicating the effectiveness of the cooking process on the antioxidant potential of leafy vegetables. Both cooking processes enhanced significantly (P<0.05) the radical scavenging ability, especially the oil fried samples showed the highest values. There is a significant reduction in the vitamin C content in all the vegetables due to boiling and frying except in the Indian spinach leaf. However, the present findings suggest that boiling and frying can be used to enhance the antioxidant ability, by increasing the bioaccessibility of health-promoting constituents from the four vegetables investigated in this study. PMID- 29043221 TI - Effects of Extraction Methods on In Vitro Biological Capacities and Rheological Properties of Polysaccharides from Red Pepper Stems. AB - The purposes of this study were to produce polysaccharides from red pepper stems using different extraction methods and evaluate their chemical composition, in vitro biological capacities, and rheological properties. Two polysaccharides were extracted from red pepper stems using an autoclave and alkali treatments, and the extracts were named PAU and PAL, respectively. The contents of total phenolics and flavonoids were significantly higher in PAU than those in PAL. PAU exhibited greater scavenging activities on 2,2-diphenyl-1-picrylhydrazyl radicals, 2,2' azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt radicals, superoxide radicals, and nitrite compared to PAL, suggesting that PAU served as better antioxidants. Similarly, in vitro inhibitory abilities against carbohydrate hydrolyzing enzymes of PAU were higher than those of PAL. Steady shear rheological analysis demonstrated that PAU showed higher psuedoplastic shear-thinning behavior compared to PAL. Based on the results from dynamic shear rheological properties, it was found that both samples had predominantly viscous behavior rather than elastic behavior. PMID- 29043222 TI - Production of Fermented Kale Juices with Lactobacillus Strains and Nutritional Composition. AB - Fermented kale juices using four types of lactobacilli were produced in the present study. After 48 h of fermentation time, viable cell counts of all ferments reached an above 109 CFU/mL. The viability of the ferments after cold storage in the refrigerator for 4 weeks showed 108 CFU/mL in all ferments. Among four types of fermented kale juices, the ferment of Lactobacillus acidophilus IFO 3025 indicated a good nutritional composition, including neutral sugar (1,909.76 MUg/mL), reducing sugar (564.00 MUg/mL, P<0.05), and protein contents (160.06 MUg/mL, P<0.05). The results of mineral composition analysis had the highest potassium value in all ferments (854.16~895.07 MUg/mL), particularly in the ferment of Lactobacillus brevis FSB-1 (P<0.001), which is necessary to sustain osmotic pressure, prevention of high blood pressure, and protein synthesis. Moreover, calcium, phosphorus, and magnesium contents related to bone health were generally sufficient in all ferments. Consequently, in this study, fermented kale juices may be suggested as a healthy fermented beverage with essential nutrients. However, the acceptability of the fermented kale juice to the Korean taste should be further investigated with a trained taste panel to determine whether inoculated fermentation could be an option for the consumers. PMID- 29043223 TI - Amygdalin Contents in Peaches at Different Fruit Development Stages. AB - Amygdalin contents of the seeds, endocarps, and mesocarps from three peach cultivars (i.e., Stone Peach, Hikawa Hakuho, and Bakhyang) were measured at three stages of fruit development (stone-hardening, fruit enlargement, and ripening). The peach samples were dried and defatted with a Soxhlet apparatus, reflux extracted with methanol, and analyzed using reverse phase high-performance liquid chromatography. During all fruit development stages, the amygdalin contents in the seeds were higher than those in the endocarps and mesocarps. The amygdalin contents of the Stone Peach were comparatively higher than the Hikawa Hakuho and Bakhyang (P<0.05). Further, the amygdalin contents during ripening were very low or not detected. Overall, the amygdalin contents of the three peach cultivar samples (seed, endocarp, and mesocarp) increased until the fruit enlargement stage and either remained constant or decreased during ripening. PMID- 29043224 TI - Optimization of Mixing Ratio to Improve Antioxidant Activity of Aged Garlic with Pine Needle Using Response Surface Methodology. AB - Aged garlic has been reported to possess beneficial pharmacological activities, including anti-stress and anti-fatigue properties, and to exert protective effects on the cardiovascular system and liver. Pine needles are widely used in folk medicine and as food additives owing to their pharmacological properties such as anti-aging and anti-inflammatory effects. It has long been known that combining certain phytochemicals with other phenols or organic acids can produce synergistic effects. Therefore, the purpose of this study was to develop an optimal formula of aged garlic with added pine needle powder for improved antioxidant activity using the statistical technique of response surface methodology. The antioxidant activities of aged garlic mixed with pine needle powder were confirmed by measuring oxygen radical absorbance capacity and total polyphenol content. An optimized antioxidant formula was identified that contained 5.08 g aged garlic and 1.97 g pine needle powder. The antioxidant activities of the mixture prepared using this optimal formula were significantly higher than the predicted values according to an additive model. Hence, this study confirms that the addition of pine needle powder to aged garlic can improve its antioxidant activity. This study demonstrated an optimal mixing ratio to produce an aged garlic product with improved functionality through the addition of pine needle powder that could be successfully employed by the food industry to prepare functional foods. PMID- 29043225 TI - Physicochemical and Textural Properties of Noodles Prepared from Different Potato Varieties. AB - This study was performed to investigate the quality characteristics of noodles made from four different potato varieties: Atlantic, Go-un, Sae-bong, Jin-sun, and wheat flour. Quality characteristics of five noodles were analyzed by general components analysis, cooking quality (rate of water absorption, cooking loss, and volume increase), and mechanical textural properties. Some variations existed in wheat- or potato-based noodles for the general components analysis, but no clear trend was observed. Higher values in the rates of water absorption, cooking loss, and volume increase were observed for the wheat flour noodle, while some variations were observed for potato noodles depending on the variety. The wheat flour noodles exhibited higher values of textural characteristics obtained from the texture profile analysis, except for adhesiveness. Higher gluten contents as well as lower ash contents in the wheat flour noodles compared to the potato noodles are thought to be the two key factors contributing to this finding. PMID- 29043226 TI - Invasive fungal infection (IFI) in pediatric leukemia: better outcome with ACT. PMID- 29043227 TI - The role of cord blood banks in the cell therapy era: future perspectives. PMID- 29043228 TI - Auer rods in unusual sites: macrophage indigestion. PMID- 29043229 TI - Blastic plasmacytoid dendritic cell neoplasm in the CSF. PMID- 29043230 TI - Advances in the treatment of newly diagnosed primary central nervous system lymphomas. AB - Primary central nervous system lymphoma (PCNSL) is a type of highly invasive non Hodgkin lymphoma. With a growing number of organ transplantation and immunosuppressant therapy, the incidence of PCNSL has been growing rapidly in recent years, which is attributed to the increased incidence of HIV/AIDS, a prominent risk factor for developing PCNSL. The rising rate of PCNSL incidence is the highest among the intracranial tumors. In the past 20 years, dozens of clinical trials related to PCNSL have been registered, but adequate therapeutics are still challenging. Currently, the chemotherapy regimens based on high-dose methotrexate and whole-brain radiotherapy are the two main therapeutic options; however, the toxicity associated with those is the main problem that challenges medical researchers. Novel agents and therapeutic strategies have been developed in recent years. In the current review, we describe advances in the treatment of PCNSL and discuss novel therapeutic approaches currently in development, such as the use of rituximab, disruption of the blood-brain barrier, and state-of-the-art radiotherapy. PMID- 29043231 TI - Voriconazole plus caspofungin for treatment of invasive fungal infection in children with acute leukemia. AB - BACKGROUND: Invasive fungal infections (IFIs) are a life-threatening problem in immunocompromised patients. Despite timely diagnosis and appropriate antifungal therapy, clinical outcomes of IFIs remain unsatisfactory, necessitating treatment with a combination of antifungal agents. Therefore, childhood leukemic patients treated with voriconazole plus caspofungin were evaluated for the safety and efficacy of the combination antifungal therapy to treat IFIs. METHODS: In this retrospective study, medical records were retrieved for patients admitted to the Pediatric Department of Yeungnam University Hospital, Daegu, South Korea, between April 2009 and May 2013. Medical records of 22 patients were analyzed. RESULTS: Of the 22 patients studied, nine (41%) had been diagnosed with probable IFI, and 13 (59%) with possible IFI. All patients, except one, were already receiving antifungal monotherapy for the treatment of neutropenic fever. After a diagnosis of IFI was confirmed, antifungal monotherapy was replaced with combination therapy. The study's overall response rate was 90.9%, with complete responses in 86.3% of the patients. Two patients experienced a side effect of a small increase in liver enzyme levels. CONCLUSION: Voriconazole plus caspofungin combination therapy is an effective and safe treatment for serious IFI in pediatric patients with acute leukemia. PMID- 29043232 TI - Comparison of the effects of early intensified induction chemotherapy and standard 3+7 chemotherapy in adult patients with acute myeloid leukemia. AB - BACKGROUND: Standard remission induction chemotherapy consisting of anthracycline plus cytarabine (3+7) is administered for adult acute myeloid leukemia (AML). However, the effects of intensified regimen on complete remission (CR), relapse and overall survival (OS) remain unknown. METHODS: We analyzed 1195 patients treated with idarubicin plus cytarabine/BHAC (3+7) from 2002 to 2013. Among them, 731 received early intensification with 3-day cytarabine/BHAC (3+10, N=363) or 2 day idarubicin plus cytarabine/BHAC 3 days (5+10, N=368). The 3+10 and 5+10 strategies were applied to patients with bone marrow blast counts of 5-20% and >20% on day 7 of 3+7, respectively. RESULTS: Early intensification correlated with a younger age (median: 40 vs. 45 yr) and higher t(8;21) frequency (20.4% vs. 7.1%), compared to 3+7. After early intensification, the early death rates were higher among the elderly (3+10 [15.7%], 5+10 [21.7%] vs. 3+7 [6.3%], P=0.038), while the post-induction CR rate was higher in young patients (3+10 [79.8%], 5+10 [75.1%] vs. 3+7 [65.1%], P<0.001). Early relapse rate was also decreased (3+10 [11.8%], 5+10 [11.7%] vs. 3+7 [22.0%], P<0.001). In multivariate analysis, early intensification correlated with an inferior 5-year OS among elderly patients (19.2% vs. 22.8%; hazard ratio [HR]=1.84, 95% confidence interval [CI]; 1.11 3.06, P=0.018) and lower overall relapse rate among young patients (33.0% vs. 41.4%, P=0.023; HR=0.71, 95% CI; 0.55-0.93, P=0.012). CONCLUSION: Early intensification correlated with higher CR and lower relapse rates, but not OS in young AML patients. In elderly patients, early intensification correlated with a higher early death rate and poorer OS. PMID- 29043233 TI - Clinical characteristics and treatment outcomes of isolated myeloid sarcoma without bone marrow involvement: a single-institution experience. AB - BACKGROUND: Isolated myeloid sarcoma (MS) is a rare extramedullary tumor mass composed of malignant myeloid precursor cells without any evidence of leukemia in the peripheral blood and bone marrow. We describe the clinical characteristics and outcomes of patients diagnosed with isolated MS at our institution. METHODS: We retrospectively reviewed 9 of 497 acute myeloid leukemia (AML) patients (1.8%) with isolated MS. Isolated MS patients were divided into 2 groups according to the first-line treatment strategy: systemic treatment only (S) or local treatment with or without systemic treatment (LS). RESULTS: The most common site of MS occurrence was the head and neck area (N=4, 44.4%), followed by the anterior mediastinum (N=2, 22.2%) and the gastrointestinal tract (N=2, 22.2%). The tumors of 4 patients (44.4%) eventually evolved to AML, in a median time of 13.4 months (range, 2.4-20.1 mo). The number of patients achieving complete remission after first-line treatment was higher in the LS group (N=5, 83.3%) than in the S group (N=1, 33.3%) (P =0.226). All patients in the LS group survived, but those in the S group died (P=0.012). CONCLUSION: Accurate and rapid diagnosis using various modalities and the early initiation of intensive combined treatment may be the optimal strategies to reduce the risk of isolated MS subsequently evolving to AML. To fully understand the characteristics of isolated MS, a larger number of patients from a multinational study is necessary. PMID- 29043234 TI - Clinical impact of CD5 expression in Korean patients with diffuse large B-cell lymphoma. AB - BACKGROUND: CD5-positive diffuse large B-cell lymphoma (CD5+ DLBCL) accounts for 5-10% of DLBCL cases and has poor patient outcomes. However, most studies on CD5+ DLBCL were performed in Japanese patients and only few data are available for Korean population. In this study, we investigated the clinical characteristics and prognostic impact of CD5 expression in Korean patients with bone marrow (BM) involvement of DLBCL. METHODS: Patients who were initially diagnosed with BM involvement of de novo DLBCL from 2005 to 2013 were included. Clinicopathological features and outcomes of patients were compared between CD5+ and CD5 negative (CD5-) DLBCL. RESULTS: Among a total of 57 patients, the number of patients with CD5+ and CD5- DLBCL were 13 and 44, respectively. Clinical and laboratory features of CD5+ DLBCL were not significantly different from those of CD5- DLBCL. The 3-year overall survival (OS) rates for CD5+ and CD5- DLBCL were 20.2% and 59.0%, respectively (P=0.031), and 3-year progression-free survival (PFS) rates for CD5+ and CD5- DLBCL were 23.1% and 50.1%, respectively (P=0.055). CONCLUSION: CD5+ DLBCL with BM involvement showed an inferior survival tendency compared to CD5- DLBCL, and thorough evaluation of CD5 expression might be helpful to predict the prognosis of patients with DLBCL. PMID- 29043235 TI - Platelet to lymphocyte ratio (PLR) retains independent prognostic significance in advanced stage marginal zone lymphoma patients treated with rituximab, cyclophosphamide, vincristine, and prednisone combination chemotherapy (R-CVP): Consortium for Improving Survival of Lymphoma trial. AB - BACKGROUND: Rituximab plus cyclophosphamide, vincristine, and prednisone (R-CVP) is one of the effective chemotherapeutic regimens for patients with advanced stage marginal zone lymphoma (MZL). However, prognostic factors that affect the outcome of treatment for MZL are not well understood. METHODS: Between August 2006 and June 2013, patients with newly diagnosed stage III and IV MZL treated with R-CVP as a first-line therapy from 15 institutions were retrospectively analyzed. Patients' clinical and laboratory data at diagnosis were collected by review of medical records. RESULTS: A total of 80 patients were analyzed. Bone marrow involvement was observed in 30% cases. Twelve patients (15%) had nodal MZL, and 41.3% patients exhibited multiple mucosa-associated lymphoma tissue sites. Overall response rate was 91.3%, including 73.8% achieving complete response. Advanced MZL patients treated with R-CVP showed a 3-year progression free survival (PFS) rate of 69.6%. Prognostic markers significantly affecting PFS in univariate analysis were platelet to lymphocyte ratio (PLR, <95 vs. >=95, P=0.014), serum albumin (<=3.9 vs. >3.9 g/dL, P=0.008), and the International Prognostic Index (IPI) score (1 vs. 2-4, P=0.032). In multivariate analysis, only PLR (<95 vs. >=95, HR 0.367, 95% CI, 0.139-0.971, P=0.043) was an independent risk factor for PFS. CONCLUSION: PLR >=95 at diagnosis is an independent prognostic marker for PFS in advanced stage MZL patients treated with R-CVP. This marker may aid clinicians in predicting the response to R-CVP chemotherapy in stage III and IV MZL patients. PMID- 29043236 TI - Efficacy of eculizumab in paroxysmal nocturnal hemoglobinuria patients with or without aplastic anemia: prospective study of a Korean PNH cohort. AB - BACKGROUND: Patients with paroxysmal nocturnal hemoglobinuria (PNH) often have concurrent aplastic anemia (AA). This study aimed to determine whether eculizumab treated patients show clinical benefit regardless of concurrent AA. METHODS: We analyzed 46 PNH patients >=18 years of age who were diagnosed by flow cytometry and treated with eculizumab for more than 6 months in the prospective Korean PNH registry. Patients were categorized into two groups: PNH patients with concurrent AA (PNH/AA, N=27) and without AA (classic PNH, N=19). Biochemical indicators of intravascular hemolysis, hematological laboratory values, transfusion requirement, and PNH-associated complications were assessed at baseline and every 6 months after initiation of eculizumab treatment. RESULTS: The median patient age was 46 years and median duration of eculizumab treatment was 34 months. Treatment with eculizumab induced rapid inhibition of hemolysis. At 6-month follow-up, LDH decreased to near normal levels in all patients; this effect was maintained until the 36-month follow-up regardless of concurrent AA. Transfusion independence was achieved by 53.3% of patients within the first 6 months of treatment and by 90.9% after 36 months of treatment. The mean number of RBC units transfused was significantly reduced, from 8.5 units during the 6 months prior to initiation of eculizumab to 1.6 units in the first 6 months of treatment, for the total study population; this effect was similar in both PNH/AA and classic PNH. CONCLUSION: This study demonstrated that eculizumab is beneficial in the management of patients with PNH/AA, similar to classic PNH. PMID- 29043237 TI - Hepcidin and iron parameters in children with anemia of chronic disease and iron deficiency anemia. AB - BACKGROUND: Anemia of chronic disease (ACD) and iron deficiency anemia (IDA) are the two most prevalent forms of anemia having interrelated characteristics. Hepcidin, a newly introduced biomarker for assessment of iron status, is a homeostatic regulator of iron metabolism. We investigated the role of hepcidin and other conventional iron parameters to assess iron status among children with ACD and IDA. We also identified children with ACD who developed iron deficiency (ID). METHODS: The study was undertaken in anemic children with 30 cases each of ACD and IDA along with 30 age and sex-matched controls. The ACD cases were subdivided into pure ACD and ACD with coexistent ID. All cases were subjected to following tests: complete blood count with peripheral smear, serum C-reactive protein, serum interleukin-6, iron studies, serum soluble transferrin receptor (sTfR), and serum hepcidin. RESULTS: The mean serum hepcidin concentration was significantly increased in pure ACD patients (143.85+/-42.76 ng/mL) as compared to those in IDA patients (6.01+/-2.83 ng/mL, P < 0.001) and controls (24.96+/ 9.09 ng/mL, P <0.001). Also, compared to pure ACD patients [normal sTfR levels (<3 ug/mL)], the serum hepcidin concentration was reduced significantly in ACD patients with ID [high sTfR levels (>=3 ug/mL)] with a mean of 10.0+/-2.97 ng/mL. CONCLUSION: Hepcidin measurement can provide a useful tool for differentiating ACD from IDA and also help to identify an iron deficiency in ACD patients. This might aid in the appropriate selection of therapy for these patients. PMID- 29043238 TI - Hematologists and nephrologists working together: moving forward with a new integrated care model for blood-related malignancies? PMID- 29043239 TI - A case of synchronous multiple myeloma and chronic myeloid leukemia. PMID- 29043240 TI - Sequential heart and autologous stem cell transplantation for light-chain cardiac amyloidosis. PMID- 29043241 TI - An unusual case of metachronous NK/T cell lymphoma and interdigitating dendritic cell sarcoma. PMID- 29043242 TI - Primary adrenal T-cell lymphoma in a young adult presented with pseudo-hypopyon: a case report and literature review. PMID- 29043243 TI - Combined occurrence of Bernard-Soulier syndrome and prekallikrein deficiency. PMID- 29043244 TI - A case of adult-onset Still's disease accompanied by pseudo-gray platelet syndrome. PMID- 29043245 TI - Intentional partial odontectomy-a long-term follow-up study. AB - BACKGROUND: The surgical extraction of the third molar is the most frequently encountered procedure in oral and maxillofacial surgery and is related with a variety of complications. This study examined the efficacy of intentional partial odontectomy (IPO) in the third molars which have no periapical lesions and are located near important anatomical structures such as inferior alveolar nerve. METHODS: Seven patients (four males, three females, 39.1 +/- 11.6 years), who received IPO to reduce the risk of inferior alveolar nerve injury (IANI), were followed long-term. The treated teeth were horizontally impacted third molars in the mandibular left (n = 5) or mandibular right (n = 4) areas and were all ankylosed with the surrounding alveolar bone. During the IPO, the bone around the crown was removed to expose the crown, and then the tooth was resected at cement enamel junction (CEJ). Any secondary trauma to the healthy root was minimized and remained intact after primary suture. RESULTS: The mean follow-up time was 63.2 +/- 29.8 months, and all sites showed good bone healing after the crown removal. Also, sensory abnormality was not found in any patients after IPO. In one patient, the bone fragments erupted 4 months after IPO. In other patient, an implant placed on second molar site adjacent to the third molar that received IPO was explanted about 2 years after the patient's persistent discomfort. CONCLUSIONS: In case where high risk of IANI exists, IPO may be chosen alternatively to surgical extraction to reduce the risk of nerve damage. PMID- 29043246 TI - Follow-up of Mothers with Suspected Postpartum Depression from Pediatrics Clinics. AB - PURPOSE: Pediatric providers are increasingly screening for postpartum depression (PD), yet, it is unknown how often mothers comply with recommendations to seek treatment. The objectives were to describe the rate at which mothers with suspected PD seek treatment and explore factors that predict help-seeking behavior. DESIGN AND METHODS: Mothers were recruited from four pediatric clinics after identification using the Child Health Improvement through Computer Automation (CHICA) system. Mothers with a positive screen were invited to participate in a telephone interview between January 2012 and December 2014. Mothers reported if they sought treatment or called a community resource. RESULTS: 73 of 133 eligible mothers participated (55% response rate). Fifty women recalled a recommendation to seek help. Only 43.8% (32/73) made a follow-up appointment with an adult provider and even fewer kept the appointment. CONCLUSION: A majority of mothers suspected of having PD recalled a referral for further intervention; yet, less than half took action. Further investigation of barriers of help-seeking behavior is warranted. PMID- 29043247 TI - Clinic-Based Mobile Health Decision Support to Enhance Adult Epilepsy Self Management: An Intervention Mapping Approach. AB - INTRODUCTION: Epilepsy is a neurological disorder involving recurrent seizures. It affects approximately 5 million people in the U.S. To optimize their quality of life people with epilepsy are encouraged to engage in self-management (S-M) behaviors. These include managing their treatment (e.g., adhering to anti-seizure medication and clinical visit schedules), managing their seizures (e.g., responding to seizure episodes), managing their safety (e.g., monitoring and avoiding environmental seizure triggers), and managing their co-morbid conditions (e.g., anxiety, depression). The clinic-based Management Information Decision Support Epilepsy Tool (MINDSET) is a decision-support system founded on theory and empirical evidence. It is designed to increase awareness by adult patients (>=18 years) and their health-care provider regarding the patient's epilepsy S-M behaviors, facilitate communication during the clinic visit to prioritize S-M goals and strategies commensurate with the patient's needs, and increase the patient's self-efficacy to achieve those goals. METHODS: The purpose of this paper is to describe the application of intervention mapping (IM) to develop, implement, and formatively evaluate the clinic-based MINDSET prototype and in developing implementation and evaluation plans. Deliverables comprised a logic model of the problem (IM Step 1); matrices of program objectives (IM Step 2); a program planning document comprising scope, sequence, theory-based methods, and practical strategies (IM Step 3); a functional MINDSET program prototype (IM Step 4); plans for implementation (IM Step 5); and evaluation (IM Step 6). IM provided a logical and systematic approach to developing and evaluating clinic-based decision support toward epilepsy S-M. PMID- 29043248 TI - Health by Design: Interweaving Health Promotion into Environments and Settings. AB - The important influence of the environmental context on health and health behavior-which includes place, settings, and the multiple environments within place and settings-has directed health promotion planners from a focus solely on changing individuals, toward a focus on harnessing and changing context for individual and community health promotion. Health promotion planning frameworks such as Intervention Mapping provide helpful guidance in addressing various facets of the environmental context in health intervention design, including the environmental factors that influence a given health condition or behavior, environmental agents that can influence a population's health, and environmental change methods. In further exploring how to harness the environmental context for health promotion, we examine in this paper the concept of interweaving of health promotion into context, defined as weaving or blending together health promotion strategies, practices, programs, and policies to fit within, complement, and build from existing settings and environments. Health promotion interweaving stems from current perspectives in health intervention planning, improvement science and complex systems thinking by guiding practitioners from a conceptualization of context as a backdrop to intervention, to one that recognizes context as integral to the intervention design and to the potential to directly influence health outcomes. In exploring the general approach of health promotion interweaving, we examine selected theoretical and practice-based interweaving concepts in relation to four key environments (the policy environment, the information environment, the social/cultural/organizational environment, and the physical environment), followed by evidence-based and practice-based examples of health promotion interweaving from the literature. Interweaving of health promotion into context is a common practice for health planners in designing health promotion interventions, yet one which merits further intentionality as a specific health promotion planning design approach. PMID- 29043250 TI - Canine Food Preference Assessment of Animal and Vegetable Ingredient-Based Diets Using Single-Pan Tests and Behavioral Observation. AB - Knowledge of canine food selection is critical for both the pet food industry and dog owners, since owners want quality foods that are palatable, while fulfilling their pet's nutritional requirements. There are two common methods for assessing canine food preference: the two-pan test and the one-pan test. Neither test fully accounts for the complexity of the canine feeding experience nor do they provide applicable representations of canine feeding behavior in the home. The objectives of this study were to (1) determine whether dogs display a preference for animal ingredient-based diets when compared with vegetable ingredient-based diets and (2) examine whether dogs experience neophobia when presented with a novel diet. Eight adult Beagles (average age = 24 months, weighing 8-12 kg) were individually fed each of four novel diets in a 4 * 4 replicated Latin square design, with 10-d treatment periods and four dietary treatments. Data were analyzed using a mixed model with repeated measures and significance was declared when p < 0.05. The diets were: animal and vegetable ingredient-based diets, and animal- and vegetable-based ingredients diluted with anhydrous alpha-d-glucose. The diluted diets were used for a larger study to determine true mineral digestibility. Dogs were fed twice per day (0800 and 1300 h). Behavioral observations were made by video on the first, and last 2 days of each 10-day treatment period of both a.m. and p.m. feedings. Time to consume feed, distraction, hesitation, level of anticipation pre-consumption, and interest post-consumption were recorded. Dogs experienced initial disruptive (neophobic) effects of a novel diet. Neophobia was demonstrated by a decreased (slower) rate of consumption, increased distraction during consumption of the diet, and increased hesitation on the first day of each new diet (p < 0.05). The level of interest post-consumption was highest when dogs consumed the animal-based ingredients diet (p < 0.05). This study presents insights into canine food preference assessment methods that may more accurately represent the dog owner's experience. Further research is required to determine the minimum length of time necessary to eliminate neophobia to food. In addition, future research should also aim to establish whether interest post-consumption is due primarily to food preference or acute satiety. PMID- 29043251 TI - NEAT HFpEF: Organic nitrates fail to deliver. PMID- 29043249 TI - Interactions between Bacteria and Bile Salts in the Gastrointestinal and Hepatobiliary Tracts. AB - Bile salts and bacteria have intricate relationships. The composition of the intestinal pool of bile salts is shaped by bacterial metabolism. In turn, bile salts play a role in intestinal homeostasis by controlling the size and the composition of the intestinal microbiota. As a consequence, alteration of the microbiome-bile salt homeostasis can play a role in hepatic and gastrointestinal pathological conditions. Intestinal bacteria use bile salts as environmental signals and in certain cases as nutrients and electron acceptors. However, bile salts are antibacterial compounds that disrupt bacterial membranes, denature proteins, chelate iron and calcium, cause oxidative damage to DNA, and control the expression of eukaryotic genes involved in host defense and immunity. Bacterial species adapted to the mammalian gut are able to endure the antibacterial activities of bile salts by multiple physiological adjustments that include remodeling of the cell envelope and activation of efflux systems and stress responses. Resistance to bile salts permits that certain bile-resistant pathogens can colonize the hepatobiliary tract, and an outstanding example is the chronic infection of the gall bladder by Salmonella enterica. A better understanding of the interactions between bacteria and bile salts may inspire novel therapeutic strategies for gastrointestinal and hepatobiliary diseases that involve microbiome alteration, as well as novel schemes against bacterial infections. PMID- 29043252 TI - Cardiovascular risk reduction in African Americans: Current concepts and controversies. PMID- 29043253 TI - Molecular mechanisms of cardiovascular benefits of exercise: Running for cover from heart disease. PMID- 29043254 TI - Alginate for cardiac regeneration: From seaweed to clinical trials. AB - Heart failure is a growing endemic in the aging Western population with a prevalence of over 20 million people worldwide1. Existing heart failure therapies are unable to reverse heart failure and do not address its fundamental cause, the loss of cardiomyocytes2. In order to induce myocardial regeneration for the myocardium and the heart valve, facilitate self-repair, improve tissue salvage, reduce or reverse the adverse-remodeling and ultimately achieve long-term functional stabilization and improvement in the heart function, novel strategies for therapeutic regeneration are being developed which are aiming to compensate for the insufficient and low intrinsic regenerative ability of the adult heart3. Similarly, valve replacement with mechanical or biological substitutes meets numerous hurdles. New approaches using multicellular approaches and new material are extensively studied. Most of those strategies depend on biomaterials that help to achieve functional integrated vasculogenesis and myogenesis in the heart/tissue. Especially for failed heart valve function a number of therapeutic approaches are common from corrective intervention to complete replacement4. However the complexity of the heart valve tissue and its high physical exposure has led to a variety of approaches, however therapeutic regeneration needs to be established. Beside other approaches alginate has been identified as one building block to achieve therapeutic regeneration. Alginate is a versatile and adaptable biomaterial that has found numerous biomedical applications which include wound healing, drug delivery and tissue engineering. Due to its biologically favorable properties including the ease of gelation and its biocompatibility, alginate based hydrogels have been considered a particularly attractive material for the application in cardiac regeneration and valve replacement techniques. Here, we review current applications of alginate in cardiac regeneration as well as perspectives for the alginate-dependent, cardiac regeneration strategies. PMID- 29043255 TI - A global perspective of lung transplantation: Part 1 - Recipient selection and choice of procedure. AB - Lung transplantation has grown considerably in recent years and its availability has spread to an expanding number of countries worldwide. Importantly, survival has also steadily improved, making this an increasingly viable procedure for patients with end-stage lung disease and limited life expectancy. In this first of a series of articles, recipient selection and type of transplant operation are reviewed. Pulmonary fibrotic disorders are now the most indication in the U.S., followed by chronic obstructive pulmonary disease and cystic fibrosis. Transplant centers have liberalized criteria to include older and more critically ill candidates. A careful, systematic, multi-disciplinary selection process is critical in identifying potential barriers that may increase risk and optimize long-term outcomes. PMID- 29043256 TI - Maturation of pluripotent stem cell derived cardiomyocytes: The new challenge. AB - Stem cell therapy appears to be a promising area of research for cardiac regeneration following ischemic heart failure. However, in vitro differentiation of cardiomyocytes from pluripotent stem cells, or directly from somatic cells, leads to generation of "immature" cardiomyocytes that differ from their adult counterparts in various ways. This immaturity triggers some challenges for their potential clinical use, and multiple techniques reviewed here have been developed for in vitro maturation of those cells. Nevertheless, full maturity of cardiomyocytes remains elusive and will remain the main challenge for stem cell therapy in the near future. PMID- 29043257 TI - Iranian homograft tissue processing. AB - Tissue transplantation is a life-enhancing therapeutic modality for damaged or non-functioning tissues. In most cases, there is no alternative other than human tissue as replacement, and taking into account the ever-increasing demand for tissue grafts, it makes sense to set up an establishment in charge of human tissue procurement to meet local needs. A quality assurance system, clearly defined standards, and regular audits complement the infrastructure which make this activity feasible. The process of tissue procurement consists of donor identification, consent, tissue recovery, donor screening and testing, tissue processing, preservation, packaging, labeling, terminal sterilization, storage and distribution. The transplantation of homograft heart valves remains controversial, due to the availability of prosthetic and bioprosthetic alternatives. The limited durability of homografts has not yet outweighed the advantages which this graft offers. Adherence to regulations and regularly revised guidelines improve long-term efficacy and minimizes complications or malfunction. Furthermore, the lower price of homograft heart valves and the removal of the need for a lifetime of anticoagulation therapy are noteworthy advantages of this replacement. In our practice, the proportion of homograft heart valves meeting release criteria and successfully implanted grafts were 83% and 95%, respectively. PMID- 29043259 TI - Acute myocarditis and pulmonary edema due to scorpion sting. AB - Objective: To present a case of a serious manifestation of scorpion sting, which was not reported before in Qatar, review the literature, and compare with previously reported similar cases. Case presentation and intervention: A young male patient was admitted to CCU with a clinical picture of acute toxic myocarditis and cardiogenic shock with abnormal ECG and elevated cardiac markers after a scorpion sting to his right big toe. Thorough investigations, including echocardiography, cardiac MRI and right heart catheterization, supported the diagnosis. Coronary angiography was normal. Patient was managed conservatively with supportive measures, mechanical ventilation, IV fluids, inotropic agents, steroids, antibiotics and Prazocin. Over 9 days of hospital course, patient gradually improved, was successfully extubated, and was discharged in a stable condition. Conclusion: Toxic myocarditis (with myocardial damage), pulmonary edema and cardiogenic shock are reported manifestations of scorpion venom intoxication. PMID- 29043258 TI - Insights from the International Registry of Acute Aortic Dissection. PMID- 29043261 TI - African leaders take action on RHD: The 4th All-Africa Workshop on Acute Rheumatic Fever and Rheumatic Heart Disease & African Union RHD Communique. PMID- 29043260 TI - Muscle contraction: Sliding filament history, sarcomere dynamics and the two Huxleys. AB - Despite having all the evidence needed to come to the right conclusions in the middle of the 1800s, it was not until the 1950s that it was realised by two unrelated Huxleys and their collaborators that striated muscle sarcomeres contain overlapping sets of filaments which do not change much in length and which slide past each other when the muscle sarcomere shortens. It then took quite a while to convince others that this was the case, but now the idea of sliding filaments is fundamental to our understanding of how any muscle works. Here a brief overview of the history of the discovery of sliding filaments and the factors that were missed in the 1800s is followed by an analysis of the more recent experiments which have added to the conviction that all muscles operate on the same guiding principles; two sets of sliding filaments, independent force generators and a mechanism of protein rowing that makes the filaments slide. PMID- 29043262 TI - ASGR1 - a new target for lowering non-HDL cholesterol. AB - Non-HDL cholesterol (non-HDL-C) has been introduced as an alternative cardiovascular (CV) risk marker and a secondary therapeutic target in patients with combined hyperlipidemia, diabetes mellitus, metabolic syndrome, or chronic kidney disease. An important genetic study on the Icelandic population has recently identified a strong link between a new gene - ASGR1 (for asialoglycoprotein receptor) - mutation, plasma non-HDL-C levels, and coronary heart disease (CHD). Heterozygous carriers of a rare noncoding 12-base-pair (bp) deletion (del12 deletion) in intron 4 of ASGR1 had a 13.6 mg/dl lower level of non-HDL-C and a 34% lower risk of CHD than non carriers. The cardioprotective effect of ASGR1 loss-of-function is surprisingly larger than predicted by its effect on the levels of non-HDL-C, which suggests that the atheroprotective effects of del12 mutation go beyond the lowering of serum cholesterol levels. This has shed some light on a new path - the sialylation pathway - possibly leading to a novel therapy that neutralize ASGR1 for heart disease prevention and treatment. PMID- 29043263 TI - CTS trials network: Rate control vs rhythm control for atrial fibrillation after cardiac surgery - Do bitter pills have blessed effects? AB - New onset AF is a very common sequel of cardiac surgery with an incidence reaching 50% in some studies. This post-operative complication leads to increased morbidity, hospital stay and, consequently, hospital costs1. Currently there is a great variability in the management of this condition. Despite efforts to produce best practice guidelines2, what best to do for a patient who develops AF post operatively remains a question. In a systematic attempt to find an answer to this question, the Cardiothoracic Trials Network have recently published the results of their trial "Rate Control Versus Rhythm Control for Atrial Fibrillation After Cardiac Surgery"3 (clinicaltrials.gov number: NCT02132767). PMID- 29043265 TI - Percutaneous mitral valve repair: The MitraClip device. AB - Chronic mitral regurgitation (MR) is the most common cardiac valvular disease with more than 4 million people in the United States alone suffering from moderate or severe MR. Left untreated, chronic MR results in serious consequences. Surgical correction with mitral valve repair or replacement remains the mainstay of therapy for MR. Nevertheless, a large proportion of patients may not be offered treatment due to concerns over surgical risk. This unmet therapeutic need for a less invasive approach led to a marked explosion in the development of a variety of transcatheter approaches to treat mitral regurgitation in the past decade. The majority of these devices are based on principles learned from surgical mitral valve repair techniques. Inspired by the Alfieri surgical technique, the MitraClip edge-to-edge repair system is the most advanced technique with the highest safety and efficacy to date. In this review, we discuss the current status of the MitraClip repair system in the treatment of mitral regurgitation. PMID- 29043264 TI - Advanced fluorescence microscopy techniques for the life sciences. AB - The development of super-resolved fluorescence microscopy, for which the Nobel Prize was awarded in 2014, has been a topic of interest to physicists and biologists alike. It is inevitable that numerous questions in biomedical research cannot be answered by means other than direct observation. In this review, advances to fluorescence microscopy are covered in a widely accessible fashion to facilitate its use in decisions related to its acquisition and utilization in biomedical research. PMID- 29043267 TI - Juxtaposition of the atrial appendages: A nidus for thrombus in atriopulmonary Fontan? AB - Juxtaposition of atrial appendages is a rare cardiac congenital anomaly, usually associated with other cardiac malformations. Until now, it has not been linked to any significant clinical implications. We report cardiovascular magnetic resonance (CMR) findings of two adult patients who underwent atriopulmonary Fontan operation in the setting of left juxtaposition of the atrial appendages. The patients were in sinus rhythm at the time of the CMR study. Both patients had episodes of sustained atrial tachyarrhythmia requiring electrical cardioversion and were anticoagulated with warfarin with target INR 2-3. CMR images showed a thrombus located in the enlarged and juxtaposed right appendage in both patients. Blood flow frequently appears slow or sluggish in the dilated right atrium following atriopulmonary Fontan surgery. In addition, cine CMR suggested that blood flow reaches very low velocities in the massively dilated juxtaposed right atrial appendage cul-de-sac, thus potentially creating a substrate for clot formation. These findings propose that juxtaposed atrial appendages in atriopulmonary Fontan is an additional risk factor for clot formation, specifically in the dilated right atrial appendage on the left side juxtaposed with the left atrial appendage and that prophylactic anticoagulation is highly justified in these patients. PMID- 29043266 TI - Intracoronary near-infrared spectroscopy: an overview of the technology, histologic validation, and clinical applications. AB - Intracoronary near-infrared spectroscopy (NIRS) imaging, which is now clinically available in a combined NIRS and intravascular ultrasound catheter, is a novel catheter-based imaging modality capable of identifying lipid core plaque within the coronary arteries of living patients. The present manuscript provides an overview of intracoronary NIRS imaging with a focus on several concepts essential to individuals seeking to better understand this novel imaging modality. One of the major assets of NIRS is that it has been rigorously validated against the gold standard of histopathology and has been shown to accurately identify histologically-proven fibroatheroma. Clinical studies of NIRS have demonstrated its ability to accurately identify large lipid core plaques at culprit lesions across the spectrum of acute coronary syndromes. NIRS has also been shown to detect lesions at increased risk of causing peri-procedural myocardial infarction during PCI. With regards to predicting future risk, NIRS is seemingly capable of identifying vulnerable patients at increased risk of experiencing subsequent patient-level cardiovascular events. In addition to these clinical applications of NIRS, there are several large prospective observational studies underway to determine if NIRS imaging will be able to identify vulnerable plaques at increased risk of triggering site-specific future coronary events. These studies, once completed, are anticipated to provide valuable data regarding the ability of NIRS imaging to identify plaque vulnerability. PMID- 29043268 TI - Which way to grow? Force over time may be the heart's Dao de jing. PMID- 29043269 TI - PLATFORM at 90 days: Evaluating the clinical utility of FFRCT. AB - The advancement that took place in assessing fractional flow reserve (FFR) using various competing modalities led to numerous research trials to evaluate the clinical impact of each. Among those trials is the recently published PLATFORM study. The data was designed to compare two clinical scenarios; a combination of computed fluid dynamics with computed tomographic angiography (CTA-guided strategy) in non-obstructive coronary artery disease (CAD) on one arm, compared to the standard practice representing the other clinical arm. The study's results were evaluated for further evidence and clinical insights. PMID- 29043270 TI - FIRE AND ICE: The quest for the perfect modality in atrial fibrillation ablation. AB - Atrial fibrillation (AF) is the most common arrhythmia in clinical practice. Catheter ablation of atrial fibrillation plays an important role in the management of AF. Radiofrequency ablation is widely used in practice all over the world. Cryoablation has emerged as an alternative method for AF ablation. The FIRE and ICE trial was a non inferiority, multicentre, randomized trial that compared between the two modalities and proved cryoablation to be non inferior to radiofrequency in terms of efficacy and safety. However, the rate of AF recurrence was markedly high in both arms of the study. PMID- 29043271 TI - The role of mechanical circulatory support as destination therapy for ambulatory heart failure. AB - Continuous flow technology has dramatically improved patient survival during ventricular assist device (VAD) therapy in recent years. Health-related quality of life is improved by at least two years. Despite remarkable progress in this field, major adverse events during VAD support limit the effectiveness of this therapy and present major barriers to its extension to ambulatory advanced heart failure patients. The pace of progress will depend on improvements in both the adverse event profile and development of semi-quantitative methodology to calculate and display a composite of survival and health-related quality of life. PMID- 29043272 TI - Who gets a lung transplant? Assessing the psychosocial decision-making process for transplant listing. AB - In the United States, there is a significant shortage of available donor organs. This requires transplant professionals to hold simultaneous, yet divergent roles as (1) advocates for patients who are in need of a lifesaving transplant, and (2) responsible stewards in the allocation of scarce donor organs. In order to balance these roles, most transplant teams utilize a committee based decision making process to select suitable candidates for the transplant waiting list. These committees use medical and psychosocial criteria to guide their decision to list a patient. Transplant regulatory bodies have established medical standards for identifying appropriate medical candidates for transplantation. However, transplant regulatory bodies have not developed policies to standardize psychosocial criteria for listing patients. This affords transplant centers the autonomy to develop their own psychosocial criteria for determining which patients will be placed on the transplant waiting list. This lack of a standardized policy has resulted in inconsistent psychosocial practices amongst transplant centers nationwide. Since there has been no formal review of the inconsistency in psychosocial policy and practice, this paper seeks to explore the non-standardized psychosocial approach to organ transplant listing. The authors review factors that are relevant to the standardization of the psychosocial decision-making process, including shared decision-making, clinician judgment, bias in decision-making and moral distress in transplant staff. We conclude with a discussion about the impact of these issues on psychosocial practices in solid organ transplantation. PMID- 29043273 TI - Systems biology: An emerging strategy for discovering novel pathogenetic mechanisms that promote cardiovascular disease. AB - Reductionist theory proposes that analyzing complex systems according to their most fundamental components is required for problem resolution, and has served as the cornerstone of scientific methodology for more than four centuries. However, technological gains in the current scientific era now allow for the generation of large datasets that profile the proteomic, genomic, and metabolomic signatures of biological systems across a range of conditions. The accessibility of data on such a vast scale has, in turn, highlighted the limitations of reductionism, which is not conducive to analyses that consider multiple and contemporaneous interactions between intermediates within a pathway or across constructs. Systems biology has emerged as an alternative approach to analyze complex biological systems. This methodology is based on the generation of scale-free networks and, thus, provides a quantitative assessment of relationships between multiple intermediates, such as protein-protein interactions, within and between pathways of interest. In this way, systems biology is well positioned to identify novel targets implicated in the pathogenesis or treatment of diseases. In this review, the historical root and fundamental basis of systems biology, as well as the potential applications of this methodology are discussed with particular emphasis on integration of these concepts to further understanding of cardiovascular disorders such as coronary artery disease and pulmonary hypertension. PMID- 29043274 TI - 4D flow streamline characteristics of the great arteries twenty years after Lecompte and direct spiral arterial switch operation (DSASO) in simple TGA. AB - Transposition of the great arteries (TGA) is caused by discordance between the great arteries and the ventricles. If left untreated, this anomaly has a disastrous perspective. More recent surgical approach for correction includes the Lecompte technique in which the pulmonary bifurcation is transposed anterior to the aorta, which may be less physiologic. Although the early results are excellent, there is potential for future problems involving the great arteries and semilunar valves1. These potential problems necessitate the development of other improved surgical techniques2. Here we report an MRI 4D flow study related to a case of simple TGA whose primary surgical correction - direct spiral arterial switch operation (DSASO) - was performed twenty years ago in an attempt to restore physiologic arrangement among the great arteries and semilunar valves. PMID- 29043275 TI - Multivessel myocardial bridging in a patient with spiral hypertrophic cardiomyopathy. AB - Myocardial bridging is commonly observed in hypertrophic cardiomyopathy, usually confined to the left anterior descending (LAD), and correlates to the hypertrophic septum. We present a patient with unique spiral hypertrophic cardiomyopathy (HCM) and compression of all three coronary arteries corresponding to this hypertrophy pattern. PMID- 29043278 TI - Understanding the Contextual Factors Affecting Women's Health in Sistan and Baluchestan Province in Iran: A Qualitative Study. AB - BACKGROUND: Contextual factors impact health the same way social and cultural conditions do. Women's health, with its varying dimensions, is also under the influence of biological, societal, and cultural contexts. This typical condition has been developed along the continuum of their life cycle, bearing close correlation with their lif style. Therefore, identifying those marices within which women's health behaviors are formed is important.This study aims at exploring the contextual factors affecting women's health in Sistan and Baluchestan in Iran. METHODS: This study was carried out using a qualitative method, on a content analysis approach. Participants were 20 middle-aged women from Zahedan who entered the study with purposive sampling method. The method of collecting data was face-to- face and through conducting semi-structured interviews. After data collection, all interviews were transcribed, andreviewed, from which categories were extracted. The semantic similarities were revised and subcategories were identified, and then the related subcategories were arranged under one category. RESULTS: Two main categories of "features of context-based structure" and "changes in the cultural context" prove to be the basis for health behaviors in women. As for the category of "characteristics of context-based structure", individual, familial and environmental characteristics were identified, and regarding the category of "changes in the cultural context", the context-based cultural features were identified. CONCLUSION: The findings of the study suggest that effective contextual factors influencing women's living conditions had a decisive role in their health behaviors. In fact, the context- based structure in association with the cultural changes that have occurred in the beliefs of men and women, have had a decisive role in the women's health behaviors. PMID- 29043277 TI - The Effect of Telephone Counseling and Education on Breast Cancer Screening in Family Caregivers of Breast Cancer Patients. AB - BACKGROUND: Breast cancer is the most common form of malignancy among females. Family history is a key risk factor for breast cancer. Breast cancer screening practices are vital in patients with family history of breast cancer. Telephone counseling and education may be appropriate for improved breast cancer screening. This study was done to determine family caregiver patients' knowledge of risk factors for breast cancer and practice of breast cancer screening and also to assess the effect of telephone counseling and education on mammography screening. METHODS: This study was a community-based trial. The participants of the study were 90 caregivers who were randomly divided into an experimental group, telephone counseling and education, and a control group. The intervention group received counseling and education phone calls. A three-section questionnaire was responded and filled out through telephone interviews with the participants. The collected data were analyzed with SPSS18, using descriptive and inferential statistics. RESULTS: The results showed that 88.9% of the participants did not know when to do breast self-exam (BSE). Mammography was performed by the participants before and after the telephone counseling in intervention group (P<0.00), which were 13.3% and 77.8% respectively). Moreover, the major cause of failure to participate in mammography was lack of enough knowledge in 73.3% of the participants. CONCLUSION: This study concluded that knowledge and practice on breast cancer screening in family caregiver of breast cancer patients was low. Telephone counseling and educating may provide a suitable technique for earlier detection of breast cancer in family caregivers of breast cancer patients and it can influence the decision making regarding mammography screening among 40-year old or older women. Trial Registration Number: 2017052316870N3. PMID- 29043276 TI - Knitting for heart valve tissue engineering. AB - Knitting is a versatile technology which offers a large portfolio of products and solutions of interest in heart valve (HV) tissue engineering (TE). One of the main advantages of knitting is its ability to construct complex shapes and structures by precisely assembling the yarns in the desired position. With this in mind, knitting could be employed to construct a HV scaffold that closely resembles the authentic valve. This has the potential to reproduce the anisotropic structure that is characteristic of the heart valve with the yarns, in particular the 3-layered architecture of the leaflets. These yarns can provide oriented growth of cells lengthwise and consequently enable the deposition of extracellular matrix (ECM) proteins in an oriented manner. This technique, therefore, has a potential to provide a functional knitted scaffold, but to achieve that textile engineers need to gain a basic understanding of structural and mechanical aspects of the heart valve and in addition, tissue engineers must acquire the knowledge of tools and capacities that are essential in knitting technology. The aim of this review is to provide a platform to consolidate these two fields as well as to enable an efficient communication and cooperation among these two research areas. PMID- 29043279 TI - The Effect of Emotional Focused Intervention on Spousal Emotional Abuse and Marital Satisfaction among Elderly Married Couples: A Randomized Controlled Trial. AB - BACKGROUND: This study examined the impacts of an Emotional Focused Intervention on emotional abuse behaviors and marital satisfaction among the elderly married couples. METHODS: This randomized controlled trial study was carried out in Shiraz-Iran, during September 2013-2014. The elderly couples were invited to join an emotional focused intervention, following the advertisement and announcement on bulletin boards in the elderly day clinic centers and all governmental primary health care centers. Then, 57 couples (114 participants) who were eligible for study were assigned in two groups by block randomization (29 in the experimental and 28 in the control group(.The couples in the experimental group received intervention twice a week for four weeks. Each session lasted 90 minutes. The control group didn't receive any intervention and the subjects were put in the waiting list. The outcome measures were evaluated by Multidimensional Measure of Emotional Abuse Questionnaire (MMEAQ) and Marital Satisfaction Questionnaire for Older People (MSQFOP). Repeated measurement ANOVA was used to detect any significant changes between groups in their mean scores of emotional abuse behaviors and marital satisfaction from pre- to post-test, and 3 months after the intervention. Analysis of data was performed using SPSS, version 19, and P<=0.05 was measured as significant. RESULTS: The mean duration of marriage was 39.56+/ 9.64 years. In the experimental group, the abusive behaviors decreased significantly (P<0.001) at times 2 and 3 compared with time 1, and marital satisfaction improved significantly only at time 3 (P<0.001). These differences were not significant in the control group. CONCLUSION: Emotion-focused couple based interventions are helpful in reducing the spousal emotional abuse and improving marital satisfaction in among the elderly couples. Trial Registration Number: 2013111715426N1. PMID- 29043280 TI - Prediction of Adequate Prenatal Care Utilization Based on the Extended Parallel Process Model. AB - BACKGROUND: Pregnancy complications are one of the major public health concerns. One of the main causes of preventable complications is the absence of or inadequate provision of prenatal care. The present study was conducted to investigate whether Extended Parallel Process Model's constructs can predict the utilization of prenatal care services. METHODS: The present longitudinal prospective study was conducted on 192 pregnant women selected through the multi stage sampling of health facilities in Qeshm, Hormozgan province, from April to June 2015. Participants were followed up from the first half of pregnancy until their childbirth to assess adequate or inadequate/non-utilization of prenatal care services. Data were collected using the structured Risk Behavior Diagnosis Scale. The analysis of the data was carried out in SPSS-22 using one-way ANOVA, linear regression and logistic regression analysis. The level of significance was set at 0.05. RESULTS: Totally, 178 pregnant women with a mean age of 25.31+/-5.42 completed the study. Perceived self-efficacy (OR=25.23; P<0.001) and perceived susceptibility (OR=0.048; P<0.001) were two predictors of the intention to utilize prenatal care. Husband's occupation in the labor market (OR=0.43; P=0.02), unwanted pregnancy (OR=0.352; P<0.001), and the need to care for the minors or elderly at home (OR=0.35; P=0.045) were associated with lower odds of receiving prenatal care. CONCLUSION: The model showed that when perceived efficacy of the prenatal care services overcame the perceived threat, the likelihood of prenatal care usage will increase. This study identified some modifiable factors associated with prenatal care usage by women, providing key targets for appropriate clinical interventions. PMID- 29043282 TI - The Effect of Aromatherapy Treatment on Fatigue and Relaxation for Mothers during the Early Puerperal Period in Japan: A Pilot Study. AB - BACKGROUND: Early in the postpartum period, mothers are often nervous and tired from the delivery, breast-feeding and caring for a new-born. The aim of this study was to evaluate the process and outcome of using aromatherapy treatments to increase relaxation and decrease fatigue for mothers during the first to the seventh day of the postpartum period. METHODS: This non-randomized controlled study with a quasi-experimental one-group pretest-posttest design was used to evaluate scores in relaxation and fatigue before and after the intervention. Aromatherapy hand treatments were performed on a purposive sample of 34 postpartum mothers in Tokyo, Japan, from May to July 2016. The single treatment included a choice of one of five essential aroma oils through hand and forearm massage. Relaxation and fatigue were measured by self-administered valid and reliable questionnaires. Wilcoxon signed-rank test was conducted to analyze the data before and after the intervention. The software programs SPSS, v. 23.0 (SPSS, Tokyo), was used to analyze the data, with the significance level set at 5%. RESULTS: Valid responses were obtained from 29 participants. A comparison of the scores before and after aroma treatment intervention indicated that the participants' relaxation scores increased significantly (P<0.001) and fatigue scores were significantly reduced (P<0.001). The majority of participants (77.8%) were satisfied with the treatment. CONCLUSION: The aroma treatments significantly improved relaxation and reduced fatigue for mothers in the early puerperal period and were well received. Therefore, a larger study using a pretest-posttest random control trial is recommended. PMID- 29043281 TI - Predictors of Post-Traumatic Stress Disorder among Victims of Serious Motor Vehicle Accidents. AB - BACKGROUND: Compelling evidence has shown that motor vehicle accidents have an enormous impact on mental health. Post-traumatic Stress Disorder (PTSD) is one of the most common psychological consequences in adult survivors of accidents, so it is important to understand the prevalence and predictors of this issue since delay causes damage to crucial daily functioning. This study aimed at investigating the prevalence and predictors of PTSD after motor vehicle accident. METHODS: This cross-sectional study was conducted on 528 injured patients six weeks to six months after motor vehicle accident in Imam Reza Clinic of Poursina hospital, Rasht in 2015. Data collection tools were three questionnaires including post-traumatic stress-self report (PSS), Beck Depression Inventory (BDI II), and the Numeric Rating Scale (NRS) for pain. The data were analyzed in SPSS (Version 19) using Chi-square, Fischer's exact test and multivariate logistic regression. Significance level was considered P<=0.05. RESULTS: The prevalence of PTSD and depression was 30.49% and 19.89% in participants, respectively. Chi square test indicated a significant relationship among age (P=0.02), sex (P<0.001), education level (P<0.001), work status (P<0.001) and PTSD. Participants who reported pain (P<0.001) and depression (P<0.001) were more likely to have high score of PTSD than the others. Multivariate logistic regression showed this significance in sex, depression, age, educational status and pain, as constant risk factors in developing PTSD after accident. CONCLUSION: This study suggests that primary care setting should be readily prompted for diagnosis of these disorders in non-treatment seeking individuals in the community. PMID- 29043283 TI - Barriers to Pap Smear Test for the Second Time in Women Referring to Health Care Centers in the South of Tehran: A Qualitative Approach. AB - BACKGROUND: Cervical cancer is a preventable disease with a regular screening program. Many studies have reported a large number of barriers that women had for the first time, but this study decided to find other barriers for the second time pap smear. METHODS: In this qualitative research, data were gathered through in depth interviews and expressed through conventional content analysis in the form of constant comparison. The participants were 15 women with family profile at 30 health care centers who lived in the south of Tehran and had done Pap smear for one time but didn't do it for the second time. RESULTS: Three main themes emerged from the analysis of the interviews: negative experiences of the first Pap test were as follows: results of the first time test, readiness for performing the test, getting the test itself, and the site of the first Pap test. Personal barriers to getting the second Pap test were: inattention to time, physical barriers to the second Pap test, and inhibitory beliefs. Perceived social barriers to getting the second Pap test with two sub-themes included social supports and abstract norms. CONCLUSION: This study provided other barriers about Pap smear including lack of the spouse's support, the role of health care providers and physicians in screening program for early diagnosis in women. PMID- 29043284 TI - Exploring the Position of Community-Based Nursing in Iran: A Qualitative Study. AB - BACKGROUND: Community-based nursing focuses on providing health services to families and communities in the second and third levels of prevention and this can improve the individuals, families and communities' quality of life, and reduce the healthcare costs. The aim of this study was to explore the status of community-based nursing in Iran. METHODS: This qualitative study was conducted from March to November 2015, in Tehran, Iran, using the content analysis approach. The study setting consisted of Iran and Tehran Faculties of Nursing and Midwifery, Tehran, Iran. The purposive sampling method was used. Twenty faculty members and Master's and PhD students were interviewed by using the face-to-face semi-structured interview method. Moreover, two focus groups were conducted for complementing and enriching the study data. The data were analyzed using the Graneheim and Lundman's approach to content analysis. The trustworthiness of the study findings was maintained by employing the Lincoln and Guba's criteria of credibility, dependability, and confirmability. RESULTS: In total, 580 codes were generated and categorized into three main categories of conventional services, the necessity for creating infrastructures, and multidimensional outcomes of community-based nursing. CONCLUSION: Introducing community-based nursing into nursing education curricula and creating ample job opportunities for community based nurses seem clearly essential. PMID- 29043285 TI - The Relationship between Health Locus of Control and Health Behaviors in Emergency Medicine Personnel. AB - BACKGROUND: Health locus of control defined as individual beliefs based on past experiences in health issues and having external or internal control over them, could affect health. Health locus of control plays a role in health behaviors. We aimed to investigate the relationship between health locus of control and health behavior in emergency medical personnel in Ahvaz during 2016. METHODS: This is a cross-sectional descriptive study, which began in August 2016 for a period of six months on 215 emergency medical personnel in Ahvaz who were selected randomly. The data were collected by a demographic questionnaire, Rotter's locus of control questionnaire, and health behavior questionnaire and analyzed using SPSS software, version 22. The correlation between variables was estimated by Pearson's correlation coefficient and independent t test. The level of significance for all statistical tests was set at 0.05. RESULTS: We found no significant relationship between health locus of control (external and internal) and health behavior (P>0.05).Health behaviors were very good in terms of personal health (86.5%), nutrition (53%), and sleep and rest (48.4%), and poor in terms of physical activity (52.6%) and stress management (79.5%). Furthermore, 79.5% of the emergency personnel, in general, had poor heath behaviors. CONCLUSION: Leaders and officials in the field of health must necessarily design programs in relation to health locus of control and the factors developing and affecting it as well as the role of health locus of control in doing correct behaviors. PMID- 29043286 TI - Perceived Social Support and Maternal Competence in Primipara Women during Pregnancy and After Childbirth. AB - BACKGROUND: Developing maternal competence in first time mothers has a significant impact on neonate's growth psychosocial development and neonates growth and psychological development. Social support can be an important element for becoming a new mother. We aimed to investigate how social support and maternal competence change during pregnancy and 4 months after it and examine the relationships among social support and maternal competence. METHODS: This longitudinal study was conducted on 100 first time mothers attending health centers in Alborz city, Alborz Province, between February 2015 and January 2016. Data were collected through perceived social support questionnaire that consisted of 12 questions and Parenting Sense of Competence Scale consisting of 17 items scored based on Likert's scale. The collected data were analyzed by SPSS software, version 16. Repeated-measure test and Pearson's correlation coefficient were used. P<0.05 was considered significant. RESULTS: Maternal competence significantly reduced during the study (P=0.008), while perceived social support did not show any significant reduction (P=0.286). A direct relationship was found between social support and maternal competent six weeks after childbirth (r=0.19, P=0.049), and also social support and maternal competence sixteen weeks after childbirth (r=0.23, P=0.01). CONCLUSION: Considering the reduction of maternal competency during the study, social support by healthcare providers may be helpful for the mothers' transition to motherhood, and midwives must design specific interventions to promote the sense of maternal competence and perceived social support in first time mothers. PMID- 29043287 TI - Improving the Search Strategy of Systematic Reviews and Meta-Analysis. PMID- 29043288 TI - The Authors' Reply. PMID- 29043289 TI - Restoration of Completely Transected Common Bile Duct Continuity Using Single Operator Cholangioscopy. AB - Common bile duct (CBD) injury, ranging from a partial tear to a complete transection, is a major surgical complication of cholecystectomy with significant morbidity and mortality. Proper management of these complex injuries depends on the type and extent of injury and time of recognition. Identifying and repairing injuries during cholecystectomy can prevent development of complications, but this only occurs in about one-third of cases. We report a novel technique to reconnect a transected CBD with assistance of single-operator cholangioscopy. PMID- 29043290 TI - Checkpoint Inhibitor-Induced Colitis: A New Type of Inflammatory Bowel Disease? AB - Checkpoint inhibitors are immune-stimulatory antibodies that have transformed the management and prognosis of individuals with metastatic melanoma and other cancers. Checkpoint inhibitor-induced colitis is an increasingly recognized immune-related adverse event that shares many of the same phenotypical, serological, and histological characteristics of both Crohn's disease and ulcerative colitis, suggesting that checkpoint inhibitor-induced colitis may represent a new inflammatory bowel disease phenotype. We report a 73-year-old man with metastatic melanoma who developed ipilimumab-induced colitis with subsequent transformation to Crohn?s colitis-like phenotype after the addition of pembrolizumab. PMID- 29043291 TI - Fibroblastic Polyps: A Novel Polyp Subtype in Cowden Syndrome. AB - Cowden syndrome (CS) represents one possible phenotype of the PTEN gene mutation, and it can cause hamartomas throughout the gastrointestinal tract, with a predisposition for malignancy. Fibroblastic polyps have not been associated with CS. A 45-year-old woman with CS presenting for colonoscopic surveillance was found to have multiple sessile polyps throughout the transverse, descending, and sigmoid colon, all 2-5 mm in diameter. Based on the morphologic features and the immunohistochemical profile, these lesions were classified as fibroblastic polyps. This polyp subtype is recognized as a benign process of the colonic mucosa but is a novel histologic observation in the setting of CS. PMID- 29043292 TI - Phyllodes tumors with and without fibroadenoma-like areas display distinct genomic features and may evolve through distinct pathways. AB - Breast fibroepithelial lesions (fibroadenomas and phyllodes tumors) are underpinned by recurrent MED12 exon 2 mutations, which are more common in fibroadenomas and benign phyllodes tumors. TERT promoter hotspot mutations have been documented in phyllodes tumors, and found to be more frequent in borderline and malignant lesions. Several lines of evidence suggest that a subset of phyllodes tumors might arise from fibroadenomas. Here we sought to investigate the genetic differences between phyllodes tumors with fibroadenoma-like areas vs. those without. We retrieved data for 16 borderline/ malignant phyllodes tumors, including seven phyllodes tumors with fibroadenoma-like areas and nine phyllodes tumors without fibroadenoma-like areas, which had been previously subjected to targeted capture massively parallel sequencing. Whilst MED12 exon 2 mutations were significantly more frequent in tumors with fibroadenoma-like areas (71 vs. 11%), an enrichment in genetic alterations targeting bona fide cancer genes was found in those without fibroadenoma-like areas, in particular in EGFR mutations and amplifications (78 vs. 14%). No significant difference in the frequency of TERT genetic alterations was observed (71% in cases with fibroadenoma-like areas vs 56% in those without fibroadenoma-like areas). Our data suggest that the development of phyllodes tumors might follow two different evolutionary pathways: a MED12-mutant pathway that involves the progression from a fibroadenoma to a malignant phyllodes tumor; and a MED12-wild-type pathway, where malignant phyllodes tumors arise de novo through the acquisition of genetic alterations targeting cancer genes. Additional studies are warranted to confirm our observations and define whether the outcome differs between both pathways. PMID- 29043293 TI - Classical strong metal-support interactions between gold nanoparticles and titanium dioxide. AB - Supported metal catalysts play a central role in the modern chemical industry but often exhibit poor on-stream stability. The strong metal-support interaction (SMSI) offers a route to control the structural properties of supported metals and, hence, their reactivity and stability. Conventional wisdom holds that supported Au cannot manifest a classical SMSI, which is characterized by reversible metal encapsulation by the support upon high-temperature redox treatments. We demonstrate a classical SMSI for Au/TiO2, evidenced by suppression of CO adsorption, electron transfer from TiO2 to Au nanoparticles, and gold encapsulation by a TiO x overlayer following high-temperature reduction (reversed by subsequent oxidation), akin to that observed for titania-supported platinum group metals. In the SMSI state, Au/TiO2 exhibits markedly improved stability toward CO oxidation. The SMSI extends to Au supported over other reducible oxides (Fe3O4 and CeO2) and other group IB metals (Cu and Ag) over titania. This discovery highlights the general nature of the classical SMSI and unlocks the development of thermochemically stable IB metal catalysts. PMID- 29043294 TI - Integrating networks and comparative genomics reveals retroelement proliferation dynamics in hominid genomes. AB - Retroelements (REs) are mobile DNA sequences that multiply and spread throughout genomes by a copy-and-paste mechanism. These parasitic elements are active in diverse genomes, from yeast to humans, where they promote diversity, cause disease, and accelerate evolution. Because of their high copy number and sequence similarity, studying their activity and tracking their proliferation dynamics is a challenge. It is particularly difficult to pinpoint the few REs in a genome that are still active in the haystack of degenerate and suppressed elements. We develop a computational framework based on network theory that tracks the path of RE proliferation throughout evolution. We analyze SVA (SINE-VNTR-Alu), the youngest RE family in human genomes, to understand RE dynamics across hominids. Integrating comparative genomics and network tools enables us to track the course of SVA proliferation, identify yet unknown active communities, and detect tentative "master REs" that played key roles in SVA propagation, providing strong support for the fundamental "master gene" model of RE proliferation. The method is generic and thus can be applied to REs of any of the thousands of available genomes to identify active RE communities and master REs that were pivotal in the evolution of their host genomes. PMID- 29043295 TI - Three-dimensional supercritical resolved light-induced magnetic holography. AB - In the era of big data, there exists a growing gap between data generated and storage capacity using two-dimensional (2D) magnetic storage technologies (for example, hard disk drives), because they have reached their performance saturation. 3D volumetric all-optical magnetic holography is emerging rapidly as a promising road map to realizing high-density capacity for its fast magnetization control and subwavelength magnetization volume. However, most of the reported light-induced magnetization confronts the problems of impurely longitudinal magnetization, diffraction-limited spot, and uncontrollable magnetization reversal. To overcome these challenges, we propose a novel 3D light induced magnetic holography based on the conceptual supercritical design with multibeam combination in the 4pi microscopic system. We theoretically demonstrate a 3D deep super-resolved [Formula: see text] purely longitudinal magnetization spot by focusing six coherent circularly polarized beams with two opposing high numerical aperture objectives, which allows 3D magnetic holography with a volumetric storage density of up to 1872 terabit per cubic inches. The number and locations of the super-resolved magnetization spots are controllable, and thus, desired magnetization arrays in 3D volume can be produced with properly designed phase filters. Moreover, flexible magnetization reversals are also demonstrated in multifocal arrays by using different illuminations with opposite light helicity. In addition to data storage, this magnetic holography may find applications in information security, such as identity verification for a credit card with magnetic stripe. PMID- 29043297 TI - Clinical Efficacy of Alprostadil Combined with alpha-lipoic Acid in the Treatment of Elderly Patients with Diabetic Nephropathy. AB - OBJECTIVE: To evaluate the effect and toxicity of alprostadil combined with thioctic acid injection in the treatment of patients with diabetic nephropathy (DN). METHODS: Sixty two patients with DN were included in this study and randomly divided into control group (n=32) and experiment group (n=30). Patients in the control group were given alprostadil 20ug+NS 100ml ivgtt, qd and patients in the experiment group were given alprostadil 20ug+NS 100ml ivgtt combined with thioctic acid injection of 0.45g+100ml ivgtt, qd for 14 days. After treatment, the renal function and serum level of CRP, IL-6 and TNF-alpha were compared between the two groups. RESULTS: After two weeks of treatment, the serum level of CysC and UAER significant decreased for both control and experiment group with statistical difference of p<0.05. After treatment, the serum level of CysC were 1.40 +/-0.46 mg/L and 1.02+/-0.33 for control and experiment group respectively (p<0.05). The post-treatment UAER in experiment group was significantly lower than those of control group with statistical difference (81.02+/-0.33 vs112.45+/ 20.32, p<0.05) ug/min. The serum level of CRP, IL-6 and TNF-alpha were significantly decreased after treatment for both control and experiment group (p<0.05). And the post-treatment serum CRP, IL-6 and TNF-alpha in experiment group were significantly lower than those of control group with statistical difference (p<0.05). No significant side effects were found for the two groupsin the course of treatment. CONCLUSION: Alprostadil combined with alpha-lipoic acid may improve renal function in patients with diabetic nephropathy by decreasing the levels of serum inflammatory factors. PMID- 29043296 TI - Lead halide perovskites: Crystal-liquid duality, phonon glass electron crystals, and large polaron formation. AB - Lead halide perovskites have been demonstrated as high performance materials in solar cells and light-emitting devices. These materials are characterized by coherent band transport expected from crystalline semiconductors, but dielectric responses and phonon dynamics typical of liquids. This "crystal-liquid" duality implies that lead halide perovskites belong to phonon glass electron crystals, a class of materials believed to make the most efficient thermoelectrics. We show that the crystal-liquid duality and the resulting dielectric response are responsible for large polaron formation and screening of charge carriers, leading to defect tolerance, moderate charge carrier mobility, and radiative recombination properties. Large polaron formation, along with the phonon glass character, may also explain the marked reduction in hot carrier cooling rates in these materials. PMID- 29043298 TI - Professional Burnout and Concurrent Health Complaints in Neonatal Nursing. AB - : The aim of this study was to analyze nurses' professional burnout and health complaints and the relationship between the two components. METHODS: The anonymous survey included 94 neonatal intensive care nurses from two centers of perinatology. The Maslach Burnout Inventory-Human Services Survey (MBI-HSS) was used to evaluate professional burnout; it consisted of 3 components, Emotional Exhaustion, Depersonalization, and Personal Accomplishments, with 22 items in total. Health complaints were evaluated by 21 items, where nurses were asked to report the occurrence of symptoms within the last year. Scale means were presented with standard deviations (SD). Inferential analysis was conducted with multivariate logistic regression, adjusting for age, residence, and work experience. RESULTS: The mean score of professional burnout on the Emotional Exhaustion subscale was 14.4 (SD=7.91), Depersonalization 3.8 (SD=4.75), and Personal Accomplishment 29.1 (SD=10.12). The health assessment revealed that sleeplessness, lack of rest, nervousness, and tiredness were the most common complaints. The regression analysis revealed that tiredness was independently associated with significantly increased odds of professional burnout (OR=4.1). CONCLUSIONS: In our study, more than half of the nurses in neonatal intensive care had moderate or high levels of emotional exhaustion, while levels of depersonalization were significantly lower. In contrast, the level of personal accomplishment was low in more than half of the nurses. The most common health complaints were sleep disturbances, nervousness, and tiredness. Tiredness was most strongly associated with professional burnout. PMID- 29043300 TI - Serum AFU, 5'-NT and AFP as Biomarkers for Primary Hepatocellular Carcinoma Diagnosis. AB - : To evaluate the clinical value of serum alpha-L-fucosidase (AFU), 5' nucleotidase (5'-NT) and alpha fetoprotein (AFP) as biomarkers for primary hepatocellular carcinoma (PHC) diagnosis. METHODS: Thirty six primary hepatocellular carcinoma (PHC) patients and 36 healthy controls were recruited in this study from February 2014 to January 2016 in the Second People's Hospital of Tianjin. The serum level of AFU, 5'-NT and AFP were examined and compared between the two groups. The diagnostic sensitivity, specificity area under the receiver operating characteristic (ROC) curve were calculated by STATA11.0 software. RESULTS: The serum level of AFU, 5'-NT, AFP were 30.87+/-10.43(U/L), 5.58+/ 3.89(U/L), 233.60+/-226.60 (MUg/L) respectively for primary hepatocellular carcinoma group and 19.96+/-6.73 (U/L), 1.87+/-0.84 (U/L), 16.64+/-14.17 (MUg/L) for healthy control groups. The serum level of AFU, 5'-NT and AFP in primary hepatocellular carcinoma group were significant higher than those of healthy control group (P<0.001). The diagnostic sensitivity and specificity were 0.78 (95%CI:l0.61-0.90), 0.64 (95%CI:0.46-0.79) for serum AFU, 0.75(95%CI:0.58-0.88), 0.72(95%CI:0.55- 0.86) for serum 5'-NT and 0.72 (95%CI:0.55-0.86), 0.92 (95%CI:0.78-0.98) for serum AFP respectively. The AUC under the ROC curve were 0.80 (0.69-0.90), 0.80 (0.69-0.91) and 0.87 (0.780-0.96) for serum AFU, 5'-NT and AFP respectively. Positive correlation between AFU and 5'-NT (rpearson=0.63, P<0.05), AFU and AFP (rpearson=0.49, P<0.05), 5'-NT and AFP(rpearson=0.44, P<0.05) were found in the primary hepatocellular carcinoma patients. CONCLUSION: Serum AFU, 5'-NT and AFP were higher in PHC patients than those of healthy controls. The difference between PHC patients and healthy controls made serum AFU, 5'-NT and AFP potential biomarker for PHC diagnosis. PMID- 29043301 TI - Complex multiblock bottle-brush architectures by RAFT polymerization. AB - The combination of the reversible addition fragmentation chain transfer (RAFT) polymerization R-group grafting from approach and RAFT one-pot acrylamide multiblock methodology is used to synthesise complex bottle-brush architectures. This is demonstrated for block copolymer grafted side chains and the insertion of ungrafted blocks into the backbone to yield multi-segmented bottle-brushes. PMID- 29043299 TI - CK20 mRNA Expression in Serum as a Biomarker for Colorectal Cancer Diagnosis: A Meta-analysis. AB - The aim of this study was to evaluate the diagnostic value of serumCK20 mRNA as a biomarker for colorectal cancer diagnosis by meta-analysis. Clinical studies related to serum CK20 mRNA expression for colorectal cancer diagnosis were searched in the databases of Pubmed, Cochrane Library, Embase, ISI Web of Knowledge, CNKI and Wanfang. The number of true positive (tp), false positive (fp), false negative (fn) and true negative (tn) of the original included publications were extracted by two reviewers independently. The diagnostic sensitivity, specificity, positive likely hood ratio (+LR), negative likelyhood ratio (-LR), diagnostic odds ratio (DOR) and area under the symmetric ROC curve (AUC) were pooled by random or fixed effect method according to the statistical heterogeneity among the studies. After screening the databases, nineteen publications met the inclusion criteria and were finally included in this meta analysis. The diagnostic sensitivity and specificity were pooled by random effect model(I2>50%). The pooled diagnostic sensitivity and specificity of CK20 mRNA in serum as biomarker for colorectal cancer were 0.49 (95% CI:0.46 to 0.51) and 0.94 (95%CI:0.92-0.96) respectively. The pooled +LR and -LR were 10.90 (95%CI:5.78 to 20.55) and 0.51 (95%CI:0.45 to 0.57) respectively by random-effect method. The pooled DOR was 22.31 with the 95% CI of 11.65 to 42.71. The pooled area under the ROC curve (AUC) was 0.72for CK20 mRNA in serum as a biomarker for colorectal cancer diagnosis. Conclusion Serum CK20 mRNA expression was significantly elevated in colorectal cancer patients which could be a promising serum biomarker for colorectal cancer diagnosis with high specificity. PMID- 29043302 TI - Foamed silicon particles as a high capacity anode material for lithium-ion batteries. AB - We report foamed Si particles as a high-performance lithium storage material prepared by a milling-assisted alkaline etching process. The resulting foamed Si electrode showed excellent cycling performance of over 300 cycles with an initial discharge capacity of about 2750 mA h g-1. PMID- 29043303 TI - Protein dynamics promote hydride tunnelling in substrate oxidation by aryl alcohol oxidase. AB - The temperature dependence of hydride transfer from the substrate to the N5 of the FAD cofactor during the reductive half-reaction of Pleurotus eryngii aryl alcohol oxidase (AAO) is assessed here. Kinetic isotope effects on both the pre steady state reduction of the enzyme and its steady-state kinetics, with differently deuterated substrates, suggest an environmentally-coupled quantum mechanical tunnelling process. Moreover, those kinetic data, along with the crystallographic structure of the enzyme in complex with a substrate analogue, indicate that AAO shows a pre-organized active site that would only require the approaching of the hydride donor and acceptor for the tunnelled transfer to take place. Modification of the enzyme's active-site architecture by replacement of Tyr92, a residue establishing hydrophobic interactions with the substrate analogue in the crystal structure, in the Y92F, Y92L and Y92W variants resulted in different temperature dependence patterns that indicated a role of this residue in modulating the transfer reaction. PMID- 29043304 TI - A single stranded fluorescent peptide probe for targeting collagen in connective tissues. AB - We herein report the construction of a novel single stranded fluorescent collagen mimetic peptide by introducing a bulky FAM dye in the central region rather than the N terminus. Without the need for any prior thermal or ultraviolet treatment, the peptide probe can be conveniently applied to specifically target collagen in connective tissues for fluorescence imaging. PMID- 29043305 TI - Unprecedented rearrangement of diketopyrrolopyrroles leads to structurally unique chromophores. AB - Diketopyrrolopyrroles possessing thienyl, furyl and benzofuryl substituents undergo unprecedented skeletal rearrangement in the presence of trimethylsilyl bromide resulting in the formation of thieno[2,3-f]isoindole-5,8-diones and furo[2,3-f]isoindole-5,8-diones. These relatively small dyes possess favorable photophysical properties with the emission maxima within the range of 573-624 nm, large fluorescence quantum yields, moderate sensitivity of emission to solvent polarity and a HOMO-LUMO gap of ca. 1.8 eV. PMID- 29043306 TI - Palladium-catalyzed denitrogenative functionalizations of benzotriazoles with alkenes and 1,3-dienes. AB - Pd-Catalyzed denitrogenative functionalizations of benzotriazoles with alkenes and 1,3-dienes have been developed, which enable the rapid access of diverse ortho-amino styrenes and 2-vinylindolines, respectively. This study shows the great potential of benzotriazoles as a [1C]-synthon in cross-coupling reactions and an aza-[3C]-synthon in cycloaddition reactions. PMID- 29043307 TI - Insight into the multiple quasi-molecular states in ethylenediamine reduced graphene nanodots. AB - Recently, graphene nanodots (GNDs) have been frequently considered as inherently heterogeneous systems, leading to multicolor emission under a changeable excitation wavelength. However, an accurate picture of the GNDs and an exhaustive structure-property correlation are still lacking. Using a two dimensional photoluminescence excitation (2D-PLE) map, molecular orbital calculation, reduction level dependent PL analysis, absorption spectroscopy and time-resolved PL spectroscopy, three cases of quasi-molecular PL are determined in ethylenediamine (EDA) reduced GNDs, including the C[double bond, length as m dash]O related electronic state, graphenol related electronic state and large pi conjugated domains. The graphenol structure is expected to be created via nucleophilic addition-elimination reactions between epoxide groups and EDA, contributing most to the blue-shifted and enhanced PL of GNDs. The multiple quasi molecular PL provides deeper insights into the commonly called "excitation wavelength dependent PL". An effort is made to utilize the heterogeneous photoluminescence through phosphor-based light-emitting diodes employing reduced GNDs as a phosphor, which are capable of converting blue light into white light. PMID- 29043308 TI - Geometrical flexibility of platinum nanoclusters: impacts on catalytic decomposition of ethylene glycol. AB - Catalytic decomposition of ethylene glycol on the Pt13 cluster was studied as a model system for hydrogen production from a lignocellulosic material. Ethylene glycol was chosen as a starting material because of two reasons, it is the smallest oxygenate with a 1 : 1 carbon to oxygen ratio and it contains the C-H, O H, C-C, and C-O bonds also present in biomass. Density functional theory calculations were employed for predictions of reaction pathways for C-H, O-H, C-C and C-O cleavages, and Bronsted-Evans-Polanyi relationships were established between the final state and the transition state for all mechanisms. The results show that Pt13 catalyzes the cleavage reactions of ethylene glycol more favourably than a Pt surface. The flexibility of Pt13 clusters during the reactions is the key factor in reducing the activation barrier. Overall, the results demonstrate that ethylene glycol and thus biomass can be efficiently converted into hydrogen using platinum nanoclusters as catalysts. PMID- 29043309 TI - Cyanamide as a prebiotic phosphate activating agent - catalysis by simple 2 oxoacid salts. AB - Cyanamide is a prebiotically plausible compound that has previously been invoked as a phosphate activating agent. However, its reactions with phosphate monoesters are very slow and tend to be low yielding. We now report a fast and efficient phosphate activation reaction using cyanamide in the presence of glyoxylate or pyruvate. These simple 2-oxoacid salts are shown to function as catalysts and in an optimised system, adenosine-3'-phosphate was converted to adenosine-2',3' cyclic phosphate in 95% yield. PMID- 29043310 TI - LK peptide side chain dynamics at interfaces are independent of secondary structure. AB - Protein side chain dynamics are critical for specific protein binding to surfaces and protein-driven surface manipulation. At the same time, it is highly challenging to probe side chain motions specifically at interfaces. One important open question is the degree to which the motions of side chains are dictated by local protein folding or by interactions with the surface. Here, we present a real-time measurement of the orientational dynamics of leucine side chains within leucine-lysine (LK) model peptides at the water-air interface, with three representative peptide folds: alpha-helix, 310-helix and beta-strand. The results, modeled and supported by molecular dynamics simulations, show that the different peptide folds exhibit remarkably similar sub-picosecond orientational side chain dynamics at the air/water interface. This demonstrates that the side chain motional dynamics is decoupled from the local secondary structure. PMID- 29043311 TI - Strain induced atomic structure at the Ir-doped LaAlO3/SrTiO3 interface. AB - The structure of Ir-doped LaAlO3/SrTiO3(001) interfaces was investigated on the atomic scale using probe-corrected transmission electron microscopy in high-angle annular dark-field scanning mode (HAADF-STEM) and electron energy loss spectroscopy (EELS), combined with first-principles calculations. We report the evolution of the strain state experimentally measured in a 5 unit-cell thick LaAlO3 film as a function of the Ir concentration in the topmost SrTiO3 layer. It is shown that the LaAlO3 layers remain fully elastically strained up to 3% of Ir doping, whereas a higher doping level seems to promote strain relaxation through enhanced cationic interdiffusion. The observed differences between the energy loss near edge structure (ELNES) of Ti-L2,3 and O-K edges at non-doped and Ir doped interfaces are consistent with the location of the Ir dopants at the interface, up to 3% of Ir doping. These findings, supported by the results of density functional theory (DFT) calculations, provide strong evidence that the effect of dopant concentrations on the properties of this kind of interface should not be analyzed without obtaining essential information from the fine structural and chemical analysis of the grown structures. PMID- 29043312 TI - Investigation of the surface plasmon polariton and electrochemical properties of covalent and non-covalent functionalized reduced graphene oxide. AB - The surface electronic properties of graphene oxide (GO) were modified through reduction and functionalization. Non-covalent functionalization was found to be superior compared to covalent functionalization due to the formation of few-layer graphene with a low defect content and average crystalline length. Because of the restoration of sp2 hybridization, non-covalently functionalized reduced graphene oxide (rGO) showed a better plasmonic response compared to GO, rGO and covalently functionalized rGO. Due to the available pi electrons from the sp2 network of graphene as well as surface functionality, non-covalent functionalized rGO exhibited elevated donor density. Furthermore, due to the synergistic effect of surface electronic properties as well as adsorption and recombination at the barrier, superior charge transfer was achieved at the electrode-electrolyte interface for non-covalent functionalized rGO. PMID- 29043313 TI - Proton mobility in aqueous systems: combining ab initio accuracy with millisecond timescales. AB - We present a multiscale simulation of proton transport in liquid water, combining ab initio molecular dynamics simulations with force-field ensemble averaging and kinetic Monte-Carlo simulations. This unique Ansatz allows for ab initio accuracy incorporating the femtosecond dielectric relaxation dynamics of the aqueous hydrogen bonding network, and bridges the time-scale gap towards the explicit simulation of millisecond diffusion dynamics. PMID- 29043314 TI - N-Functionalized MXenes: ultrahigh carrier mobility and multifunctional properties. AB - Two dimensional (2D) nanomaterials have demonstrated huge potential in wide applications from nanodevices to energy harvesting/storage. In this work, we propose a new class of 2D monolayers, nitrogen-functionalized MXenes (Nb2CN2 and Ta2CN2), based on density-functional theory (DFT). We find that these monolayers are direct semiconductors with near linear energy dispersions at the Gamma point. M2CN2 monolayers have significant small effective mass and show an ultra-high mobility of up to 106 cm2 V-1 s-1. We show that the electronic structures of the M2CN2 monolayers can be easily controlled by biaxial and uniaxial strains. Importantly, the carrier mobility and direct band gap can be dramatically increased within a certain range of strain. A direct-indirect band gap transition can be triggered and the band gap can be tuned under strain. The tunable electronic properties are attributed to the structural changes and charge redistribution under stain. Our findings demonstrate that N-functionalized MXenes are promising materials for nanodevices with high speed and low power. PMID- 29043315 TI - Quantification of cation-anion interactions in crystalline monopotassium and monosodium glutamate salts. AB - Crystalline salt compounds composed of metal cations and organic anions are becoming increasingly popular in a number of fields, including the pharmaceutical and food industries, where such formulations can lead to increased product solubility. The origins of these effects are often in the interactions between the individual components in the crystals, and understanding these forces is paramount for the design and utilisation of such materials. Monosodium glutamate monohydrate and monopotassium glutamate monohydrate are two solids that form significantly different structures with correspondingly dissimilar dynamics, while their chemistry only differs in cation identity. Crystals of each were characterised experimentally with single-crystal X-ray diffraction and terahertz time-domain spectroscopy and theoretically using solid-state density functional theory simulations, in order to explain the observed differences in their bulk properties. Specifically, crystal orbital overlap and Hamiltonian population analyses were performed to examine the role that the individual interactions between the cation and anion played in the solid-state structures and the overall energetic profiles of these materials. PMID- 29043316 TI - Polyaniline decorated Bi2MoO6 nanosheets with effective interfacial charge transfer as photocatalysts and optical limiters. AB - Polyaniline (PANI)-decorated Bi2MoO6 nanosheets (BMO/PANI) were prepared by a facile solvothermal method. Different characterization techniques, including X ray powder diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, diffuse reflectance ultraviolet-visible spectroscopy, photoluminescence spectroscopy, electrochemical impedance spectroscopy, photocurrent spectroscopy, and nanosecond time-resolved emission studies, have been employed to investigate the structure, optical and electrical properties of the BMO/PANI composites. The wide absorption of the samples in the visible light region makes them suitable for nonlinear transmission and photocatalytic activity studies. The associated photocatalytic activity and optical nonlinearities for the BMO/PANI composites are shown to be dependent on the PANI loadings. The rational mechanisms responsible for deteriorating pollutants and improving optical nonlinearities were also proposed, which could be mainly attributed to the efficient interfacial charge transfer and the interfacial electronic interactions between PANI and Bi2MoO6. The photoluminescence spectroscopy, electrochemical impedance spectroscopy, and photocurrent spectroscopy studies confirmed that the interface charge separation efficiency was greatly improved by coupling Bi2MoO6 with PANI. The tuning of photocatalysis and nonlinear optical behaviors with variation in the content of PANI provides an easy way to attain tunable properties, which are exceedingly required in optoelectronics applications. PMID- 29043317 TI - Temperature-responsive split aptamers coupled with polymerase chain reaction for label-free and sensitive detection of cancer cells. AB - A label-free and general thermo-controlled split apta-PCR strategy was first developed for the sensitive and specific detection of cancer cells. By integrating the temperature-responsive function of split aptamers with PCR amplification, a facile fluorescence assay of liver cancer SMMC-7721 cells was successfully realized with the detection of as low as 100 cells. PMID- 29043318 TI - Tailoring the input impedance of FeCo/C composites with efficient broadband absorption. AB - Proper impedance matching and strong attenuation capabilities are crucial factors for an excellent microwave absorbent. Significant attention and effort have been focused on the attenuation capabilities, whereas little attention has been paid to impedance matching, which is particularly important to design broadband absorbing materials. In this study, coin-like porous FeCo/C composites were successfully prepared by a simple carbon thermal reduction method. The Zin/Zo values of the FeCo/C composites were calculated to investigate the effects of the Fe/Co molar ratio and structure on the impedance matching. The results show that the coin-like porous samples were equipped with optimal impedance matching (Zin/Zo ~ 1) and broad frequency bandwidth. The coin-like porous structure can induce multiple scattering and extend the travel path of the waves, which is in favour of electromagnetic loss. In this way, the effective frequency bandwidth (RL < -10 dB) as large as 6 GHz (from 11.36 to 17.36 GHz) has been achieved at a thickness of 2 mm when the Fe/Co molar ratio is 4 : 6. In addition, the average frequency broadband reached 5.57 GHz in the thickness range of 2-2.6 mm. We believe that this study may provide a new strategy for tuning the impedance matching for optimal broadband absorbers. PMID- 29043319 TI - Triple function nanocomposites of porous silica-CoFe2O4-MWCNTs as a carrier for pH-sensitive anti-cancer drug controlled delivery. AB - Cobalt ferrite nanoparticles loaded on multiwalled carbon nanotube (MWCNT) magnetic hybrids have been demonstrated to be promising magnetic resonance imaging contrast agents and drug carriers. However, the hydrophobic, less biocompatible characteristics and low loading capacity for the drug hamper their wide biological applications. To solve the above problem, an alternative strategy is to coat the MWCNTs@CoFe2O4 nanoparticles with a mesoporous silica (mSiO2) shell. Herein, the reasonable fabrication process results in successful coating mSiO2 on the as-obtained MWCNTs@CoFe2O4 nanoparticles, forming well-defined core shell-structured MWCNTs@CoFe2O4@mSiO2 nanocomposites. The as-synthesized mesoporous nanocarrier possesses a high surface area and large pore volume for the loading of the drug, and has a superparamagnetic feature for drug targeting. Moreover, the anticancer drug doxorubicin (DOX)-loaded MWCNTs@CoFe2O4@mSiO2 nanoplatforms show an excellent pH-responsive drug release character within 48 h. Therefore, a novel nanocarrier based on MWCNTs@CoFe2O4@mSiO2 was proposed, and its potential application for targeted cancer therapy was highlighted. PMID- 29043320 TI - Efficient and selective catalysis for hydrogenation and hydrosilation of alkenes and alkynes with PNP complexes of scandium and yttrium. AB - Scandium and yttrium congeneric complexes, supported by a monoanionic PNP ligand, were studied as catalysts for alkene hydrogenation and hydrosilation, and alkyne semihydrogenation and semihydrosilation. The yttrium congener was found to be much more active in all cases, but this greater activity is accompanied by more rapid catalyst decomposition and therefore higher total yields for some of the reactions with the scandium catalyst. Calculations indicate that the reactions may proceed via sigma-bond metathesis of the alkyl complexes to form metal hydride intermediates into which alkenes/alkynes insert. PMID- 29043321 TI - Tetraarylsuccinonitriles as mechanochromophores to generate highly stable luminescent carbon-centered radicals. AB - This communication reports on the design and synthesis of mechanochromophores with a dynamic covalent system composed of a tetraarylsuccinonitrile skeleton that generate a metastable organic luminescent carbon radical. The mechanically generated radical species showed pink color and yellow light emission under UV irradiation. Unusually high stability of the luminescent carbon-centered radicals was also observed in a polymer system. PMID- 29043322 TI - Chirality in adsorption on solid surfaces. AB - In the present review we survey the main advances made in recent years on the understanding of chemical chirality at solid surfaces. Chirality is an important topic, made particularly relevant by the homochiral nature of the biochemistry of life on Earth, and many chiral chemical reactions involve solid surfaces. Here we start our discussion with a description of surface chirality and of the different ways that chirality can be bestowed on solid surfaces. We then expand on the studies carried out to date to understand the adsorption of chiral compounds at a molecular level. We summarize the work published on the adsorption of pure enantiomers, of enantiomeric mixtures, and of prochiral molecules on chiral and achiral model surfaces, especially on well-defined metal single crystals but also on other flat substrates such as highly ordered pyrolytic graphite. Several phenomena are identified, including surface reconstruction and chiral imprinting upon adsorption of chiral agents, and the enhancement or suppression of enantioselectivity seen in some cases upon adsorption of enantiomixtures of chiral compounds. The possibility of enhancing the enantiopurity of adsorbed layers upon the addition of chiral seeds and the so-called "sergeants and soldiers" phenomenon are presented. Examples are provided where the chiral behavior has been associated with either thermodynamic or kinetic driving forces. Two main approaches to the creation of enantioselective surface sites are discussed, namely, via the formation of supramolecular chiral ensembles made out of small chiral adsorbates, and by adsorption of more complex chiral molecules capable of providing suitable chiral environments for reactants by themselves, via the formation of individual adsorbate:modifier adducts on the surface. Finally, a discussion is offered on the additional effects generated by the presence of the liquid phase often required in practical applications such as enantioselective crystallization, chiral chromatography, and enantioselective catalysis. PMID- 29043323 TI - Concomitant polymorphism and the martensitic-like transformation of an organic crystal. AB - Crystalline polymorphism is a phenomenon that occurs in many molecular solids, resulting in a diverse range of possible bulk structures. Temperature and pressure can often be used to thermodynamically control which crystal form is preferred, and the associated transitions between polymorphic phases are often discontinuous and complete. N-Methyl-4-carboxypyridinium chloride is a solid that undergoes an apparent continuous temperature-dependent phase transition from an orthorhombic to a monoclinic polymorph. However, a hybrid characterization approach using single-crystal X-ray diffraction, terahertz time-domain spectroscopy, and solid-state density functional theory reveals the transformation to be actually a slowly changing ratio of the two discrete polymorphic forms. The potential energy surface of this process can be directly accessed using terahertz radiation, and the data show that a very low barrier (43.3 J mol-1) exists along the polymorph transformation coordinate. PMID- 29043324 TI - Privileged hydration sites in aromatic side chains: effect on conformational equilibrium. AB - Water interaction with peptide chains is one of the key structure stabilizing factors in an aqueous environment. Because of its strong polar character, water can bind to both anionic and cationic sites via electrostatic interactions. It can also act as a hydrogen-bond donor or acceptor according to its interactions with different polar groups in the backbone and side chains of peptides and proteins. Based on density functional theory calculations, the present report aims at illustrating the most energetically favorable interaction sites of aromatic side chains of phenylalanine, tyrosine, tryptophan, and histidine (neutral and protonated species) with surrounding water molecules. It was shown that beyond the strong interactions occurring between water and the aromatic ring acceptor/donor sites, such as O-H, N-H and -N[double bond, length as m-dash] groups, weaker interactions with pi-electron clouds should also be considered. The latter type of binding, hereafter referred to as Hwpi interaction, involves one of the water hydrogen atoms (Hw) pointing toward the aromatic ring. Upon comparison between the theoretical data obtained from a purely implicit hydration model, i.e. a polarized solvent continuum, and those collected from a mixture of implicit and explicit hydration models, it has been shown that the explicit water molecule binding to aromatic rings affects the relative energies of the rotamers generated by the two side chain torsion angles (chi1 and chi2). PMID- 29043325 TI - A fully integrated microfluidic platform for highly sensitive analysis of immunochemical parameters. AB - We present a novel fully integrated centrifugal microfluidic platform for highly sensitive immunoassays in point-of-care settings. The platform consists of a disposable cartridge containing structures for assay processing, a porous membrane and all dried reagents required for the analysis. Additionally, a blister containing a washing buffer is connected to a new aliquoting structure enabling the serial aliquoting of washing buffer for repetitive bound-free separation steps. The proof-of-concept for two immunoassays is shown in the cartridge with each requiring only 30 MUL of whole blood or plasma as the sample material. The detection of the cardiac marker Troponin T with a functional sensitivity of 7.55 ng L-1 (cv = 10%) within 11 minutes is shown based on samples from ten donors which were measured with six breadboard instruments to prove the platform capability for highly sensitive measurements at diagnostic relevant concentrations. Furthermore an assay for the cardiac marker NT-proBNP (five donors, six instruments) with a time-to-result of 12 minutes demonstrates that high-titer analytes (43 to 16.566 ng L-1) can be measured as well. A method comparison of our platform with a state-of-the-art laboratory analyzer proves an excellent correlation of the measured analyte concentrations. All results are obtained from injection moulded cartridges and all components of the platform are compatible for mass production. PMID- 29043326 TI - Symmetrical or non-symmetrical luminescent turnstiles based on hydroquinone stators and rotors bearing pyridyl or p-dimethylaminopyridyl coordinating units. AB - The design and synthesis of a novel family of molecular turnstiles T1-T5 were achieved. All five turnstiles are based on a stator and a rotor covalently interconnected. While turnstiles T1-T2 are based on a symmetric stator equipped with two coordinating pyridyl units and a rotor bearing either a pyridyl or p dimethylaminopyridyl coordinating moiety, the two non-symmetric turnstiles T4 and T5 are based on a stator bearing only a single pyridyl unit and the same rotor as T1 and T2 mentioned above. The switching between the open (T1-T5) and the closed (T-M) states of the turnstiles by metal cations (M = Ag+ or Pd2+) was investigated in solution by using 1D and 2D NMR techniques. The locking of the rotational movement leading to the closed state of the turnstile was achieved upon addition of the Ag+ cation through its simultaneous binding by both pyridyl moieties of the stator and the rotor. The unlocking process leading back to the open state was achieved by the addition of Et4NBr. For the symmetric turnstiles T1 and T2, bearing two pyridyl units on the stator, the binding of the Ag+ cation leads to an oscillating phenomenon between the two energetically equivalent closed states. However, in the case of turnstile T1, the oscillating process could be prevented by blocking the rotational movement using PdCl2 as the locking agent. Owing to the emissive nature of the stator, the open and closed states of the turnstiles were investigated by steady state and time-resolved photophysical methods. The photo-excitation of the turnstiles in their open state leads to an intense near-UV to deep-blue emission with short-lived excited states and a singlet intra-ligand charge transfer (1ILCT) character. Upon binding of the Ag+ cation, sizeable bathochromic shifts and a substantial decrease of PLQY were observed. Finally, the coordination of PdCl2, which possesses lower-lying excited states with metal-centered (MC) and ligand-to-metal charge transfer (LMCT) character, completely quenches the photoluminescence. PMID- 29043327 TI - Stacking interactions involving non-Watson-Crick basepairs: dispersion corrected density functional theory studies. AB - The G:A basepair, stabilized by hydrogen bonding through the sugar edge of guanine and Hoogsteen edge of adenine in trans orientation (G:A S:HT), appears very frequently in the solved RNA structures and is very stable. We have carried out stacking energy analyses of two sequences, namely C:G W:WC::G:A S:HT and G:C W:WC::G:A S:HT (':' represents basepairing and '::' represents stacking interactions), formed by this non-Watson-Crick basepair, by DFT-D. We have scanned nearly the complete phase space by modeling structures of these sequences using different values of the basepair orientation parameters to determine the most stable conformations. It is found that the most stable conformations are rather far from the most frequently found orientations. We have considered the effect of sugar-phosphate backbone connectivity as an energy penalty arising from deformation of pseudo bond lengths between C1' atoms of successive bases along the strands. Augmentation of stacking energy from DFT-D by this coarse grain energy gives predicted structures extremely similar to the experimentally determined ones. It has been observed that the best stacking with small twist values is associated with positive roll and negative slide values, which are similar to their values in A-RNA structures for most sequences. Among the two base pair steps, C:G W:WC::G:A S:HT appears to be more stable in terms of stacking energy as compared to G:C W:WC::G:A S:HT possibly due to larger stacking overlap in the former one. PMID- 29043328 TI - Catalytic applications of small bite-angle diphosphorus ligands with single-atom linkers. AB - Diphosphorus ligands connected by a single atom (R2PEPR2; E = CR2, C[double bond, length as m-dash]CR2 and NR) give chelating ligands with very small bite-angles (natural bite-angle of 72 degrees for dppm) as well as enable access to other properties such as bridging modes and hemilability. Their use in catalysis has been growing over the last two decades as researchers have sought to apply the properties of small bite-angle ligands to a wide number of catalytic reactions, often complementing the well-established applications of wide bite-angle ligands in catalysis. This Perspective reviews the properties of diphosphorus ligands featuring a single-atom linker and their use in several catalytic transformations of alkenes, including selective ethene oligomerisation, ethene polymerisation and co-polymerisation with CO, hydroacylation and hydrogenation, as well as their use in transfer hydrogenation and hydrogen-borrowing reactions. PMID- 29043329 TI - ScMO(BO3) (M = Ca and Cd): new Sc-based oxyborates featuring interesting edge sharing sandwich-like chains and UV cut-off edges. AB - Two new isostructural rare-earth oxyborates ScMO(BO3) (M = Ca and Cd) with a three-dimensional (3D) cationic framework and parallel arranged [BO3] triangles have been synthesized by the flux method. In the 3D cationic framework, an interesting sandwich-like basic building unit (BBU) is constructed by two [Ca(1)O4]6- chains and two [Sc(1)O4]5- chains. ScMO(BO3) melt incongruently, which shows that title compounds can be grown by the flux method. The UV cut-off edges for ScCaO(BO3) and ScCdO(BO3) are 230 and 249 nm, respectively. In addition, the first-principles calculations are performed to gain further insights into the relationship between the microscopic electronic structures and associated optical properties. PMID- 29043330 TI - Procyanidins extracted from the litchi pericarp ameliorate atherosclerosis in ApoE knockout mice: their effects on nitric oxide bioavailability and oxidative stress. AB - Epidemiological studies strongly support the role of procyanidin-rich beverages and fruit in the prevention of cardiovascular diseases. Procyanidins extracted from the litchi pericarp (LPPC), a new source of procyanidins, were isolated and identified in our laboratory and have been proven to possess strong antioxidant activity in vitro. In the present study, we investigated the anti-atherosclerotic effects of LPPC in apolipoprotein E knockout (ApoE KO) mice fed a high fat diet for 24 weeks. LPPC (100 mg kg-1 body mass daily) significantly reduced the atherosclerotic lesion size (P < 0.01 versus ApoE KO mice), excess NO production and iNOS expression. Moreover, the mRNA and protein expressions of eNOS in the aortas of ApoE KO mice were increased by LPPC which further explains the endothelial protective action of LPPC. LPPC also showed profound antioxidant effects in ApoE KO mice. Plasma TBARS contents and the mRNA expression for NADPH oxidase (p47phox, p67phox, NOX-2/gp91phox and NOX-4) in the aortas of ApoE KO mice were significantly reduced, whereas plasma SOD activity was markedly elevated by LPPC. These results elucidated that LPPC could ameliorate atherosclerosis in ApoE-KO mice by improving NO bioavailability and reducing oxidative stress through NADPH oxidase-dependent mechanisms. PMID- 29043331 TI - MU-Pyridine-bridged copper complex with robust proton-reducing ability. AB - The binuclear copper complex [Cu(DQPD)]2 (where DQPD = deprotonated N2,N6 di(quinolin-8-yl)pyridine-2,6-dicarboxamide (DQPDH2)) was synthesised and characterised by various spectroscopic as well as electrochemical techniques. The binuclear copper complex was converted into a mononuclear one by the addition of 2 equivalents of pTsOH into [Cu(DQPD)]2. The interconversion between the dimer and monomer complex was studied through UV-Vis spectroscopy and cyclic voltammetry. The mononuclear copper complex showed high catalytic activity towards electrochemical proton reduction using acetic acid as the external proton source in 95 : 5 (v/v) DMF/H2O. It showed an ic/ip (where ic is the catalytic current in the presence of acetic acid and ip is the reduction peak current in absence of acid) value of 24 and a turnover rate (TOF) of 111.70 s-1 at a scan rate of 100 mV s-1 at 25 degrees C. The [Cu(DQPD)]2 complex evolved hydrogen under the irradiation of visible light in the presence of fluorescein (Fl) as a photosensitizer and triethylamine (TEA) as the sacrificial electron donor with an initial TOF of 0.03 s-1 with respect to the catalyst. PMID- 29043332 TI - Enhanced thermoelectric performance in ternary spinel Cu4Mn2Te4via the synergistic effect of tellurium deficiency and chlorine doping. AB - The chemistry of copper-based chalcogenides has received considerable attention due to their diverse structures and potential applications in the area of thermoelectric (TE) materials. In this communication, a series of spinel-type Cu4Mn2Te4-based samples have been successfully prepared and their high TE performances are attributed to the enhanced power factor and low thermal conductivity via the synergistic effect of Te deficiency and Cl doping. Consequently, a maximum TE figure of merit (ZT) of ~0.4 was achieved for the Cu4Mn2Te3.93Cl0.03 sample at 700 K, which was about 100% enhanced in comparison with the undoped Cu4Mn2Te4 sample and one of the highest ZT values reported for p type spinel tellurides. PMID- 29043333 TI - Nanostructured N-doped orthorhombic Nb2O5 as an efficient stable photocatalyst for hydrogen generation under visible light. AB - The synthesis of orthorhombic nitrogen-doped niobium oxide (Nb2O5-xNx) nanostructures was performed and a photocatalytic study carried out in their use in the conversion of toxic H2S and water into hydrogen under UV-Visible light. Nanostructured orthorhombic Nb2O5-xNx was synthesized by a simple solid-state combustion reaction (SSCR). The nanostructural features of Nb2O5-xNx were examined by FESEM and HRTEM, which showed they had a porous chain-like structure, with chains interlocked with each other and with nanoparticles sized less than 10 nm. Diffuse reflectance spectra depicted their extended absorbance in the visible region with a band gap of 2.4 eV. The substitution of nitrogen in place of oxygen atoms as well as Nb-N bond formation were confirmed by X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. A computational study (DFT) of Nb2O5 xNx was also performed for investigation and conformation of the crystal and electronic structure. N-Substitution clearly showed a narrowing of the band gap due to N 2p bands cascading above the O 2p band. Considering the band gap in the visible region, Nb2O5-xNx exhibited enhanced photocatalytic activity toward hydrogen evolution (3010 MUmol h-1 g-1) for water splitting and (9358 MUmol h-1 g 1) for H2S splitting under visible light. The enhanced photocatalytic activity of Nb2O5-xNx was attributed to its extended absorbance in the visible region due to its electronic structure being modified upon doping, which in turn generates more electron-hole pairs, which are responsible for higher H2 generation. More significantly, the mesoporous nanostructure accelerated the supression of electron and hole recombination, which also contributed to the enhancement of its activity. PMID- 29043334 TI - Efficient orange-red electroluminescence of iridium complexes with 1-(2,6 bis(trifluoromethyl)pyridin-4-yl)isoquinoline and 4-(2,6 bis(trifluoromethyl)pyridin-4-yl)quinazoline ligands. AB - Two novel iridium(iii) complexes, Ir(tfmpiq)2(acac) (tfmpiq = 1-(2,6 bis(trifluoromethyl)pyridin-4-yl)isoquinoline, acac = acetylacetone) and Ir(tfmpqz)2(acac) (tfmpqz = 4-(2,6-bis(trifluoromethyl)pyridin-4-yl)quinazoline), were synthesized and thoroughly investigated. Both complexes emit orange-red photoluminescence with high quantum yields (Ir(tfmpiq)2(acac): lambdamax: 587 nm, etaPL: 42%; Ir(tfmpqz)2(acac): lambdamax: 588 nm, etaPL: 91%). Furthermore, the complex containing quinazoline shows higher electron mobility than that with isoquinoline. The organic light-emitting diodes (OLEDs) with single- or double emitting layers (EML) were fabricated using two new emitters. The double-EML device using Ir(tfmpqz)2(acac) with the structure of ITO (indium-tin-oxide)/MoO3 (molybdenum oxide, 3 nm)/TAPC (di-[4-(N,N-ditolyl-amino)-phenyl]cyclohexane, 50 nm)/Ir(tfmpqz)2(acac) (1 wt%):TcTa (4,4',4''-tris(carbazole-9-yl)triphenylamine, 10 nm)/Ir(tfmpqz)2(acac) (1 wt%):2,6DCzPPy (2,6-bis(3-(carbazol-9 yl)phenyl)pyridine, 10 nm)/TmPyPB (1,3,5-tri(m-pyrid-3-yl-phenyl)benzene, 50 nm)/LiF (1 nm)/Al (100 nm) displays good electroluminescence performances with a maximum luminance of 96 609 cd m-2, a maximum current efficiency of 59.09 cd A-1, a maximum external quantum efficiency of 20.2%, a maximum power efficiency of 53.61 lm W-1, and the efficiency roll-off ratio is mild. PMID- 29043335 TI - Remarkable lowering in the synthesis temperature of LiMn2O4via citrate solution gel synthesis facilitated by ethanol. AB - LiMn2O4 (LMO) is interesting from the viewpoint of its energy storage applications as it is a cathode in lithium ion batteries (LIB), which contains no rare, toxic or expansive elements, while it provides a high theoretical capacity (148 mA h g-1) at a reasonable voltage (4 V region) and a higher thermal stability compared to cobalt based cathodes and has a good rechargeability and cycling stability due to its spinel structure. Low temperature synthesis routes for cathode materials are currently gaining attention, in order to decrease the ecological footprint of the final LIB. Here, the crystallization temperature of LMO by a citrate based solution-gel synthesis was significantly lowered, to as low as 250 degrees C by the addition of ethanol to the precursor. The role of ethanol in this synthesis process was explored. It was found to lead to a considerable increase in the oxidation rate of the redox couple Mn2+/Mn3+, a lowering of the precursor decomposition temperature by 200 degrees C, besides a drastic decrease in the crystallization temperature (reaching 250 degrees C). Moreover, the main cause was identified to be an esterification reaction of ethanol with the carboxylic acid in the precursor complexes, taking place before the oxide formation. The insights obtained strengthen the knowledge regarding citrato-Mn2+/Mn3+ complexes present in aqueous solution-gel synthesis routes and are relevant for the preparation of various manganese containing oxides. Moreover, the precursor developed opens up a new possibility for the low temperature synthesis of LMO powders and thin films for application in LIB. In the case of thin film batteries, the low temperature processing provides compatibility with other materials in the thin film battery stack, avoiding undesired oxidations or interfacial reactions. PMID- 29043336 TI - On verdigris, part I: synthesis, crystal structure solution and characterisation of the 1-2-0 phase (Cu3(CH3COO)2(OH)4). AB - Known synthesis approaches for basic copper(ii) acetates, the main components of historic verdrigis pigments were reinvestigated and revealed to be partially irreproducible. A modification of the reaction conditions led to the successful and reproducible synthesis of the 1-2-0 phase (Cu3(CH3COO)2(OH)4 = 1Cu(CH3COO)2.2Cu(OH)2.0H2O). The phase composition was derived from elemental and thermal analysis and confirmed by the crystal structure solution using synchrotron X-ray powder diffraction (XRPD) data. The 1-2-0 phase crystallises in space group Pbca with lattice parameters of a = 20.9742(1) A, b = 7.2076(1) A, and c = 13.1220(1) A. The crystal structure consists of Cu2(CH3 COO)2(OH)4/3(OH)2/21/3- dimers, which are interconnected by corner sharing Cu(OH)2/3(OH)2/21/3+ squares forming layers perpendicular to the a-axis. The deep blue color of the solid originates from a reflectance maximum at 472 nm and from an absorbance maximum at 676 nm that is comparable with other historic blue pigments like azurite or Egyptian blue. IR- and Raman-spectroscopic properties of the solid were investigated as well, which demonstrated that the obtained product is identical with a previously synthesised verdigris phase that was obtained by applying historical procedures. Therefore, our reference data for the title compound will help to improve the understanding of the multiphase mixtures occurring in historic verdigris samples. The magnetic properties of the 1-2-0 phase were also investigated. At low temperatures the magnetic susceptibility is well described by a spin-1/2 Heisenberg chain with uniform antiferromagnetic nearest-neighbour spin exchange coupling of only one of three Cu magnetic moments. Due to the very strong antiferromagnetic coupling of the Cu2(CH3 COO)2(OH)4/3(OH)2/21/3- dimers their contribution to magnetism becomes relevant above ~140 K, which results in the presence of two distinct temperature regions where Curie-Weiss behaviour of the magnetic susceptibility with different Curie constants and Weiss temperatures is found. PMID- 29043337 TI - Tethered cationic alkaline earth - olefin complexes. AB - The aminofluoroalcohol N,N,N-(CH2[double bond, length as m-dash]CHCH2CH2 ),(CH3OCH2CH2-),(HOC(CF3)2CH2-)N ({ROF}H) possessing both a methoxy and an olefin dangling side arms enables the preparation of the heteroleptic charge neutral alkaline earth complexes [{MU2-ROF}AeN(SiMe2H)2]2 (Ae = Ca, 1; Sr, 2). These O bridged dinuclear complexes were characterised by NMR spectroscopy and X-ray diffraction crystallography. XRD analysis of 1 and 2 showed that both complexes are stabilised by intramolecular AeF-C and beta-agostic AeH-Si secondary interactions, and that the olefin does not bind to the alkaline earths while the methoxy side-arm does. The discrete ion pairs [({MU2 ROF}Ae.(Et2O)2)2]2+.2[H2N{B(C6F5)3}2]- (Ae = Ca, 3a; Sr, 4a) were synthesised upon treatment of the parent complexes 1 and 2 by [H.(Et2O)2]+.[H2N{B(C6F5)3}2]-. NMR spectroscopy showed the presence of two coordinated Et2O molecules on each metal in these complexes. The water adduct [({MU2 ROF}Sr.(H2O))2]2+.2[H2N{B(C6F5)3}2]- (4b), presumably derived from 4a upon adventitious introduction of moisture during recrystallisation, was characterised by crystallographic methods. The dication [({MU2-ROF}Sr.(H2O))2]2+ exists as an O bridged dinuclear species featuring very strong intramolecular SrF-C interactions in the range 2.788(5)-2.997(6) A, and no interaction with the weakly coordinating anion. Perhaps more importantly, the tethered olefins are coordinated onto the metal cations, with short SrCpi interactions in the range 3.066(10)-3.092(10) A; this represents the first example of a Sr-olefin cationic complex. Hence, cationisation of the charge neutral precursor to generate the discrete ion pair increases electron deficiency at the metal centre, resulting in the first observation of the binding of an olefin onto a well-defined cationic heavy alkaline earth. On the other hand, our attempts to produce Ae-olefin cations devoid of coordinated Lewis base with this strategy have met no success so far. PMID- 29043338 TI - Solvent-driven azide-induced mononuclear discrete versus one-dimensional polymeric aromatic Mobius cadmium(ii) complexes of an N6 tetradentate helical ligand. AB - We report the synthesis and structural characterization of a heteroleptic mononuclear discrete complex [Cd(N3)2(L)(MeOH)].MeOH (1.MeOH) and a one dimensional coordination polymer of the composition [Cd3(N3)6(L)]n (2), fabricated from Cd(NO3)2.4H2O and the helical organic ligand benzilbis((pyridin-2 yl)methylidenehydrazone) (L) in the presence of two equivalents of NaN3. The formation of different structures is driven by the solvent. The former complex is formed in the presence of MeOH, while the latter complex is formed in EtOH. The CdII centre in 1.MeOH is trapped by the two pyridyl-imine units of the tetradentate ligand L, two azide ligands and one oxygen atom of one methanol ligand with the CdN6O coordination polyhedron yielding a square face monocapped trigonal prism. The asymmetric unit of 2 consists of three symmetrically independent atoms of CdII, six azide anions and one L. The polymeric structure of 2 is realized through chains of the Cd(N3)2 units which are decorated with Cd(N3)2L units. The CdII atoms from the backbone of the coordination polymer have a distorted octahedral coordination, while the remaining CdII atom forms a trigonal prism with two basal planes nearly parallel to each other. In both complexes, the 12pi electron chelate ring of the CdL fragment is shown to be aromatic by establishing it as a Mobius object. Hirshfeld surface analysis of 1 in 1.MeOH and L in 2 showed that the structures of both species are highly dominated by HX (X = H, C and N) contacts, of which the latter two are highly favoured, as well as some contribution from highly enriched CC contacts is clearly observed. PMID- 29043339 TI - MicroRNA detection at femtomolar concentrations with isothermal amplification and a biological nanopore. AB - One of the greatest challenges faced by chemists and biologists is the detection of molecules at extremely low concentrations. This paper describes a method to detect ultra-low concentrations (1 femtomole) of nucleotides using isothermal amplification and a biological nanopore. PMID- 29043340 TI - CFA-13 - a bifunctional perfluorinated metal-organic framework featuring active Cu(i) and Cu(ii) sites. AB - The synthesis and crystal structure of the mixed-valent perfluorinated metal organic framework (Me2NH2)[CFA-13] (Coordination Framework Augsburg University 13), (Me2NH2)[CuCu(tfpc)4] (H2-tfpc = 3,5-bis(trifluoromethyl)-1H-pyrazole-4 carboxylic acid) is described. The copper-containing MOF crystallizes in the monoclinic crystal system within the space group P21/n (no. 14) and the unit cell parameters are as follows: a = 22.3887(19), b = 13.6888(8), c = 21.1804(13) A, beta = 90.495(3) degrees , V = 6491.0(8) A3. (Me2NH2)[CFA-13] features a porous 3 D structure constructed from two types of secondary building units (SBUs). Besides novel trinuclear [Cu(pz)4]- coordination units, the network also exhibits Cu(ii) paddle-wheel SBUs. (Me2NH2)[CFA-13] is fully characterized by single crystal X-ray diffraction, thermogravimetric analysis, variable temperature powder X-ray diffraction, IR spectroscopy, photoluminescence, gas sorption measurements and pulse chemisorption experiments. M[CFA-13] (M = K+, Cs+) frameworks were prepared by postsynthetic exchange of interchannel dimethylammonium cations. Moreover, it was shown that CO molecules can be selectively bound at Cu(i) sites of [Cu(pz)4]- units, whereas Cu(ii) paddle-wheel units bind selectively NH3 molecules. PMID- 29043341 TI - The facile synthesis of layered Ti2C MXene/carbon nanotube composite paper with enhanced electrochemical properties. AB - Ti2AlC has been investigated for several decades, but much less attention has been paid to its delamination and potential energy storage applications, mainly due to the difficulty of delamination and its oxidation features. Herein, a new path to enhance exfoliation and delamination of two-dimensional (2D) Ti2CTx MXene is used. By using an etchant of HCl + LiF, multilayer Ti2CTx is easy to obtain. With only the assistance of mild sonication for 1.5 h without any additional intercalation, two-dimensional (2D) Ti2CTx flake suspensions are produced. Subsequently, the as-fabricated stable suspensions of delaminated Ti2CTx flakes are combined with carbon nanotubes. After filtration, a two-dimensional layered Ti2CTx/carbon nanotube (CNT) nanocomposite "paper" is prepared. Owing to the larger specific area of MXene flakes, which is caused by the complete exfoliation of MXene, with carbon nanotubes assisting with structural support between layers to prevent restacking, this structure provides a rapid charge transfer path during electrochemical reactions. When the nanocomposite paper is used as a lithium ion battery anode, it exhibits a higher capacitance and better cycling stability (a reversible capacity of 155.5 mA h g-1 at 100 mA g-1 after 200 cycles). Moreover, the "paper" can be directly used for electrodes in supercapacitors; the calculated capacitances are 515.3 F g-1 and 694 F cm-3 at a scanning rate of 2 mV s-1. The facile synthesis of layered Ti2C MXene/carbon nanotube nanocomposite paper provides a more secure and easy way to fabricate promising energy storage materials, and creates wider opportunities for exploiting the potential of other MXenes. PMID- 29043342 TI - Antihypertensive effects of Tartary buckwheat flavonoids by improvement of vascular insulin sensitivity in spontaneously hypertensive rats. AB - Vascular insulin resistance and oxidative stress contribute to endothelial dysfunction and hypertension. The present study investigated whether chronic treatment with purified Tartary buckwheat flavonoids fraction (TBF) prevents the development of hypertension via improving vascular insulin sensitivity and reducing oxidative stress. Six-week-old male spontaneously hypertensive rats (SHRs) and their normotensive Wistar-Kyoto (WKY) control rats were subjected to different dosages of TBF for 8 weeks. Blood pressure, mesenteric arteriolar vasorelaxation, superoxide anion (O2-) generation, NAD(P)H oxidase activity, and insulin-stimulated Akt/endothelial nitric oxide synthase (eNOS) activation and nitric oxide (NO) production were determined. The SHRs had higher systolic blood pressure, systemic insulin resistance, and impaired vasodilator actions of insulin and the insulin signaling pathway in mesenteric arterioles when compared with the WKY rats. TBF treatment at a dosage of 100 mg kg-1 day-1 significantly reduced systolic blood pressure and increased vasodilator response to insulin in the SHRs. Additionally, TBF treatment significantly reduced phosphorylation of insulin receptor substrate 1 (IRS-1) at serine 307 and increased insulin stimulated Akt/eNOS activation in the SHRs. Furthermore, TBF treatment reduced the overproduction of basal O2- in association with a reduction of NAD(P)H oxidase activity in mesenteric arterioles of the SHRs. Finally, quercetin was identified as the predominant active component of TBF in attenuating the development of hypertension with regard to reducing vascular oxidative stress, regulating the vascular insulin signaling pathway and restoring vasodilator response to insulin in the SHRs. In conclusion, TBF possesses protective effects against hypertension through attenuating vascular insulin resistance and oxidative stress. PMID- 29043343 TI - Large-area plasmon enhanced two-dimensional MoS2. AB - Two-dimensional transition metal chalcogenides (2D TMDCs) show photoluminescence (PL) as a result of direct band-gap transitions at visible wavelengths. Although 2D TMDCs have been considered for use in next-generation optoelectronics, practical applications are restricted by their low absorption and emission efficiency. To overcome these limitations using plasmonic local field enhancement, we propose the integration of gold nanoparticles with 2D TMDCs over a centimeter-scale area. Using self-assembled gold nanoshell monolayers, we produce a 10-fold increase in the PL of 2D TMDCs. We expect our method to provide a means for the large-area, low-cost fabrication of plasmon-enhanced 2D TMDCs for optoelectronic applications. PMID- 29043344 TI - Divalent metal ions control activity and inhibition of protein kinases. AB - Protein kinases are key enzymes in the regulation of eukaryotic signal transduction. As metalloenzymes they employ divalent cations for catalysis and regulation. We used the catalytic (C) subunit of cAMP-dependent protein kinase (PKA) as a model protein to investigate the role of a variety of physiologically or pathophysiologically relevant divalent metal ions in distinct steps within the catalytic cycle. It is established that divalent metal ions play a crucial role in co-binding of nucleotides and also assist in catalysis. Our studies reveal that besides the physiologically highly relevant magnesium, metals like zinc and manganese can assist in phosphoryl transfer, however, only a few support efficient substrate turnover (turnover catalysis). Those trace metals allow for substrate binding and phosphotransfer but hamper product release. We further established the unique role of magnesium as the common biologically relevant divalent metal ideally enabling (co-) substrate binding and orientation. Magnesium allows stable substrate binding and, on the other hand accelerates product release, thus being extremely efficient in turnover catalysis. We extended our studies to non-catalytic functions of protein kinases looking at pseudokinases, a subfamily of protein kinases inherently lacking critical residues for catalysis. Recently, pseudokinases have been linked to human diseases. Some pseudokinases are still capable of binding metal ions, yet have lost the ability to transfer the phosphoryl group from ATP to a given substrate. Here metal ions stabilize an active like, though catalytically unproductive conformation and are therefore crucial to maintain non-catalytic function. Finally, we demonstrate for the canonical kinase PKA that the trace metal manganese alone can stabilize protein kinases in an active like conformation allowing them to bind substrates even in the absence of nucleotides. PMID- 29043346 TI - Anti-obesity molecular mechanism of soy isoflavones: weaving the way to new therapeutic routes. AB - Obesity is ringing alarm bells globally. Advances in food science and nutrition research have been devoted to identifying food components that exert anti-obesity effects, as well as investigating the molecular mechanisms by which they modulate the progression of obesity. Soy foods have attracted much interest as high protein components of the human diet and as unique sources of isoflavones. As they have similar chemical structures to endogenous estrogens, isoflavones are believed to interact with intracellular estrogen receptors, which results in reductions in the accumulation of lipids and the distribution of adipose tissue. Both in vitro and in vivo studies have revealed other signaling pathways in which isoflavones are involved in the inhibition of adipogenesis and lipogenesis by interacting with various transcription factors and upstream signaling molecules. Although the biological mechanisms that cause the biphasic effects of isoflavones and various controversial results remain unknown, it is noteworthy that isoflavones exhibit pleiotropic effects in the human body to regulate metabolism and balance, which may potentially prevent and treat obesity. PMID- 29043348 TI - Design and mechanism of core-shell TiO2 nanoparticles as a high-performance photothermal agent. AB - Photothermal agents (PTAs) with high biocompatibility and therapeutic efficacy have become particularly fascinating, however, knowledge of their photothermal performance is rather limited. Herein, rationally designed core-shell TiO2 nanoparticles have been fabricated using a mild hydrogenation method, where NaBH4 was used as the H2 source. The resultant TiO2 possesses strong optical absorption in the NIR region and remarkable photothermal conversion capability and stability, leading to a high inhibition rate on cancer cells. In particular, its photothermal conversion efficiency is as high as 55.2%, which is 204% that of the fully hydrogenated amorphous TiO2. More importantly, the underlying mechanism is proposed. It is revealed that while the oxygen vacancies induced by the hydrogenation can introduce defect levels in the band gap and enhance the optical absorption, the superfluous oxygen vacancies and defects reduce the photothermal conversion capability and thermal conductivity to a large extent. Controlling the hydrogenation degree and maintaining a certain extent of crystallization are, therefore, crucial to the photothermal properties. This new understanding of the photothermal conversion mechanism may have provided a fresh route to design and optimize PTAs and inspire considerable interest to turn a large variety of semiconductor metal oxides into competent PTAs by appropriate hydrogenation. PMID- 29043347 TI - Zinc'ing it out: zinc homeostasis mechanisms and their impact on the pathogenesis of human pathogen group A streptococcus. AB - Group A Streptococccus (GAS) is a major human pathogen that causes significant morbidity and mortality. Zinc is an essential trace element required for GAS growth, however, zinc can be toxic at excess concentrations. The bacterial strategies to maintain zinc sufficiency without incurring zinc toxicity play a crucial role in host-GAS interactions and have a significant impact on GAS pathogenesis. The host deploys nutritional immune mechanisms to retard GAS growth by causing either zinc deprivation or zinc poisoning. However, GAS overcomes the zinc-dependent host defenses and survives in the hostile environment by employing complex adaptive strategies. In this review, we describe the different host immune strategies that employ either zinc limitation or zinc toxicity in different host environments to control GAS infection. We also discuss the molecular mechanisms and machineries used by GAS to evade host nutritional defenses and establish successful infection. Emerging evidence suggests that the metal transporters are major GAS virulence factors as they compete against host nutritional immune mechanisms to acquire or expel metals and promote bacterial survival in the host. Thus, identification of GAS molecules and elucidation of the mechanisms by which GAS combats host-mediated alterations in zinc availability may lead to novel interference strategies targeting GAS metal acquisition systems. PMID- 29043349 TI - Comparative suppressing effects of black and green teas on the formation of advanced glycation end products (AGEs) and AGE-induced oxidative stress. AB - This study aimed at investigating and comparing the anti-diabetic potential of black and green teas. Biochemical analyses indicate higher antioxidant potency, significantly correlated with the phytochemicals present, in green teas compared to black teas. Both extracts afforded a similar level of protection to erythrocytes against peroxyl radical-induced lysis. Non-cytotoxic concentration of green and black tea extracts significantly reduced the reactive oxygen species (ROS) production (P < 0.01), lowered the oxidation of proteins (P < 0.05) and decreased the IL-6 secretion (P < 0.01) induced by AGEs or H2O2 in 3T3-L1 preadipocytes. Both teas also inhibited the decline in the enzymatic activities of superoxide dismutase, catalase and glutathione peroxidase induced by the pro oxidants. The teas further suppressed the glycation of BSA mediated by glucose, ribose and MGO by reducing fluorescent AGE, fructosamine, protein carbonyl and AOPP levels. Black and green teas also inhibited the activities of alpha-amylase (AA50: 589.86 +/- 39.51 and 947.80 +/- 18.20 MUg mL-1, respectively) and alpha glucosidase (AA50: 72.31 +/- 4.23 and 100.23 +/- 8.10 MUg mL-1, respectively). The teas afforded a comparable level of protection at the cellular level and against glycation while black tea exerted the highest carbohydrate hydrolysing enzymes inhibitory activity. Our results clearly show that black and green teas represent an important source of antioxidants with anti-diabetic potential. PMID- 29043350 TI - Microfluidic diafiltration-on-chip using an integrated magnetic peristaltic micropump. AB - Diafiltration is a membrane filtration technique that rapidly removes permeable molecules from a solution by controlling the tangential and orthogonal flows over a membrane and by replenishing the permeate with an equivalent amount of replacement buffer. However, its application to the purification of many key biomaterials and nanomaterials has been limited by the large dead volume (>10 mL) that is required to automate the process. To address this challenge, we have developed a diafiltration-on-a-chip device that can process low-volume samples (50 MUL). The key innovation of this device is a magnetically-driven on-chip peristaltic pump that is able to continuously drive fluid flow at rates as high as 50 mL h-1 with minimal external instrumentation and a dead volume of <50 MUL. To demonstrate the utility of this device, we purified microbeads from dye with >99% purity and >96% retention within two hours. We additionally showed that cells could be purified from microbeads with >97% purity and >97% retention in two hours. Because our approach requires minimal instrumentation, it is well suited for on-chip parallelization, which was demonstrated by incorporating four complete diafiltration systems onto a single credit card-sized chip. PMID- 29043351 TI - CoSex nanocrystalline-dotted CoCo layered double hydroxide nanosheets: a synergetic engineering process for enhanced electrocatalytic water oxidation. AB - Manipulating the electrical conductivity and morphology of Co-based (hydr)oxides is significant for optimizing energy conversion in the oxygen evolution reaction (OER). Herein, 2D CoSex nanocrystalline-dotted porous CoCo layered double hydroxide nanosheets (Co-Se NSs) were designed and synthesized via a modified in situ reduction and interface-directed assembly in an inert atmosphere. During the synchronous reduction/precipitation reaction between Co2+-oleylamine and NaHSe at the toluene-water interface, the hydrated Co-O and Co-Se clusters are generated and sequentially assemble under strong extrusion driven by the interfacial tension. Owing to the enriched vacancies on the lateral surfaces, the obtained loose and porous Co-Se NS presents low crystallinity. Moreover, electrons could spontaneously transfer from the CoCo LDH to the neighboring CoSex nanocrystallites due to the stronger electron-withdrawing capability of metallic CoSex, and thus more Co atoms in the CoCo layered double hydroxide (LDH) present a high oxidation state. This synergistic manipulation in the structure, component, and electron configuration of the Co-Se NS can increase the density of the OER active-sites, improve the electrical conductivity, and also offer a large accessible surface area and permeable channels for ion adsorption and transport. As a result, the resulting Co-Se NSs feature high catalytic activity towards OER, in particular a low onset potential of 1.48 V and an overpotential of only 290 mV at a current density of 10 mA cm-2 for the Co-Se-2 NS, as well as good stability in an accelerated durability test. The strategy developed here provides a reliable and valid way to synthesize multicomponent NSs, and is able to be extended to other areas of application. PMID- 29043353 TI - Machine learnt bond order potential to model metal-organic (Co-C) heterostructures. AB - A fundamental understanding of the inter-relationships between structure, morphology, atomic scale dynamics, chemistry, and physical properties of mixed metallic-covalent systems is essential to design novel functional materials for applications in flexible nano-electronics, energy storage and catalysis. To achieve such knowledge, it is imperative to develop robust and computationally efficient atomistic models that describe atomic interactions accurately within a single framework. Here, we present a unified Tersoff-Brenner type bond order potential (BOP) for a Co-C system, trained against lattice parameters, cohesive energies, equation of state, and elastic constants of different crystalline phases of cobalt as well as orthorhombic Co2C derived from density functional theory (DFT) calculations. The independent BOP parameters are determined using a combination of supervised machine learning (genetic algorithms) and local minimization via the simplex method. Our newly developed BOP accurately describes the structural, thermodynamic, mechanical, and surface properties of both the elemental components as well as the carbide phases, in excellent accordance with DFT calculations and experiments. Using our machine-learnt BOP potential, we performed large-scale molecular dynamics simulations to investigate the effect of metal/carbon concentration on the structure and mechanical properties of porous architectures obtained via self-assembly of cobalt nanoparticles and fullerene molecules. Such porous structures have implications in flexible electronics, where materials with high electrical conductivity and low elastic stiffness are desired. Using unsupervised machine learning (clustering), we identify the pore structure, pore-distribution, and metallic conduction pathways in self-assembled structures at different C/Co ratios. We find that as the C/Co ratio increases, the connectivity between the Co nanoparticles becomes limited, likely resulting in low electrical conductivity; on the other hand, such C-rich hybrid structures are highly flexible (i.e., low stiffness). The BOP model developed in this work is a valuable tool to investigate atomic scale processes, structure-property relationships, and temperature/pressure response of Co-C systems, as well as design organic-inorganic hybrid structures with a desired set of properties. PMID- 29043354 TI - Lipidomic profiles of Drosophila melanogaster and cactophilic fly species: models of human metabolic diseases. AB - The metabolic syndrome (MetS) is associated with serious diseases and represents an important threat for global public health. The common fruit fly (Drosophila melanogaster) has served as a model organism to study physiological processes of the MetS, because central metabolic pathways are conserved among species, and because the flies are easy to cultivate in a laboratory. In nature, D. melanogaster is a fruit generalist, feeding on diets rich in simple carbohydrates. Other Drosophilids, however, have specialized on distinct resources. Drosophila mojavensis, for example, is endemic to the Sonoran Desert, where it feeds on necrotic cacti which are low in carbohydrates. Its close relative Drosophila arizonae is cactophilic as well, but is also found breeding in fruits containing simple sugars. Previous studies have shown that high-sugar diets negatively affect the larval development of D. mojavensis and increase their triglyceride content, compared to D. melanogaster. More general metabolic profiles, in response to these different diets, however, have yet to be produced for any of the species. In addition, because D. arizonae appears somewhat intermediate between D. melanogaster and D. mojavensis in its development times and survival under the above mentioned diets, its general metabolic profiles are also of interest. Thus, in the present study we ask to what extent the general metabolism of these three different Drosophila species is affected by diets of distinct protein-sugar ratios. To obtain an un-biased view on possibly novel phenomena, we combined untargeted metabolomics with Random Forest data mining. PMID- 29043355 TI - Double-grooved nanofibre surfaces with enhanced anisotropic hydrophobicity. AB - This study reports a facile method for fabricating double-grooved fibrous surfaces. The primary grooves of the surface are formed by aligned fibres, while the secondary grooves are achieved by oriented nanogrooves on the fibre surface. Investigation into the formation mechanism reveals that the nanogrooves can be readily tailored through adjusting the solvent ratio and relative humidity. With this understanding, a variety of polymers have been successfully electrospun into fibres having the same nanogrooved feature. These fibres show high resemblance to natural hierarchical structures, and thereby endowing the corresponding double grooved surface with enhanced anisotropic hydrophobicity. A water droplet at a parallel direction to the grooves exhibits a much higher contact angle and a lower roll-off angle than the droplet at a perpendicular direction. The application potential of such anisotropic hydrophobicity has been demonstrated via a fog collection experiment, in which the double-grooved surface can harvest the largest amount of water. Moreover, the fabrication method requires neither post-treatment nor sophisticated equipment, making us anticipate that the double grooved surface would be competitive in areas where a highly ordered surface, a large surface area and an anisotropic hydrophobicity are preferred. PMID- 29043356 TI - Cationic amphiphilic Zn-porphyrin with high antifungal photodynamic potency. AB - Photodynamic therapy (PDT) is a promising alternative approach particularly attractive for treatment of localized fungal infections. It is based on compounds, photosensitizers (PSs), which when excited with visible light, generate reactive species that ultimately cause cell death. Such species have short lifespans; as a consequence, efficiency and selectivity of the PDT treatment depend mainly on the properties of the PSs. This study is the first to explore the effect of cationic porphyrin-based photosensitizers on Saccharomyces cerevisiae, a member of the fungus kingdom. The study investigates which properties of the PS are essential for efficient antifungal PDT. Cationic Zn(ii) meso-tetrakis(N-alkylpyridinium-2-yl)porphyrins (ZnP) with identical tetrapyrrole core and photo-physical properties, but with different substituents at the meso positions of the porphyrin ring were studied. Attaching six-carbon aliphatic chains to the four pyridyl nitrogens at all meso positions to the porphyrin ring produced a highly photo-efficient amphiphilic, water soluble PS, with minimal dark toxicity. It was taken up by the yeast cells and upon illumination suppressed metabolism by inactivating cytoplasmic and mitochondrial enzymes, and compromising plasma membrane barrier function. At low concentrations (up to 5 MUM) the tetrahexyl derivative was a much more powerful antifungal agent than the commercially available chlorin e6. The more lipophilic tetraoctyl analog was also highly photo-efficient but displayed strong dark toxicity, presumably due to higher lipophilicity which might affect the lipid bilayer of membranes. Results presented here can assist the design of antifungal agents whose biological action depends on efficient and rapid uptake by the cells. PMID- 29043357 TI - Localization of platinum nanoparticles on inner walls of mesoporous hollow carbon spheres for improvement of electrochemical stability. AB - Mesoporous hollow carbon spheres with Pt nanoparticles (NPs) loaded on their inner walls (Pt@HC-meso) have been designed and prepared through a dual templating method. The core-shell structured Pt/SiO2@micelle-polydopamine (PDA) precursor is obtained by first depositing Pt NPs on silica spheres and then coating them with the carbon precursor of PDA and diblock copolymer micelles as soft templates. The subsequent carbonization and KOH etching convert the micelle PDA shells into mesoporous carbon and remove the silica cores, respectively. Thus, the Pt NPs are subjected to calcination and left on the inner walls. The fabricated Pt@HC-meso achieved high electrocatalytic performance and outstanding stability in catalyzing methanol oxidation. We infer that the mesoporous carbon shells not only provide accessible diffusion pathways for the reactants, but also protect the inner Pt NPs from collision with Pt NPs in other hollow carbon spheres. Each hollow carbon sphere with Pt NPs inside can be regarded as an independent nanoreactor. Moreover, observations of the morphology have proved that the calcined Pt NPs avoid a second aggregation during the electrocatalytic process and maintain long-term stability. PMID- 29043358 TI - Efficient liposome fusion mediated by lipid-nucleic acid conjugates. AB - The fusion of biomembranes with release of encapsulated content in a controlled way is crucial for cell signaling, endo- and exocytosis and intracellular trafficking. Programmable fusion of liposomes and an efficient mixing of their contents have the potential to enable the study of chemical and enzymatic processes in a confined environment and under crowded conditions outside biological systems. We report on DNA-controlled fusion of lipid bilayer membranes using lipid-nucleic acid conjugates (LiNAs) to mediate lipid and content mixing of liposomes. Screening of different membrane anchor and linker structures as well as incubation temperatures led to significantly improved fusion and content mixing compared to reported systems. LiNA designs were optimized by changing lipophilic moieties as membrane anchors, PEG-spacer patterns and by introducing locked nucleic acid (LNA) modifications. Liposome fusion induced by complementary LiNAs results in remarkable efficient content mixing at 37 degrees C and 50 degrees C (up to 70%) with low leakage (<=5%). PMID- 29043359 TI - Selective recognition of quaternary ammonium ions and zwitterions by using a biomimetic bis-calix[6]arene-based receptor. AB - Artificial receptors able to recognize efficiently chemical species bearing a quaternary ammonium group have potential applications in the fields of biological and environmental analyses. A possible biomimetic strategy for the elaboration of such receptors consists of associating in close proximity a polyaromatic cavity with a polar binding site. Herein, we show that bis-calix[6]arene 1 behaves as a heteroditopic receptor that can bind biologically relevant quaternary ammonium ions and zwitterions. This host can selectively extract carbamylcholine G3 from water, opening the way for the sensing of this acetylcholine agonist. In some cases, a kinetic selectivity is observed for the shorter guests whereas kinetically stable host-guest complexes can be detected under conditions where they are thermodynamically disfavoured. These results can be rationalized by the unique mode of entrance and escape of the guests into bis-calix[6]arene 1. All these binding properties strongly differ from those reported for related calixarene-based receptors. PMID- 29043360 TI - Synthesis, photophysical and biological properties of a new oxazolone fluorescent probe for bioimaging: an experimental and theoretical study. AB - In this study, a new oxazolone derivative 4-{N,N-bis[2-phenyl-4-benzylidene-1,3 oxazol-5(4H)-one]amino}benzaldehyde (PB3) was synthesized and investigated as a fluorescent dye. The spectroscopic properties in different solvents were thoroughly studied. The experimental data were supported by quantum-chemical calculations using density functional theory. Measurements and theoretical calculations showed that the PB3 dye is characterized by non-monotonic solvatochromism, a strongly polar charge transfer excited state, a large Stokes' shift, a high fluorescence quantum yield and a high fluorescence lifetime. Bioconjugate complexes (PB3-concanavalin A) were studied by circular dichroism (CD) spectroscopy. The results showed that the secondary structure of concanavalin A was not significantly influenced by the PB3-fluorophore. Conventional fluorescence microscopy imaging of Candida albicans cells, incubated with the PB3-concanavalin A, was demonstrated. The results from cytochemistry experiments demonstrate that the PB3 dye has valuable advantages compared to the other long-wavelength dyes in typical fluorescence-based cell labeling applications. In vitro tolerance was evaluated by the MTT method in the human colon adenocarcinoma cell line HT29. The PB3 and bioconjugate complexes (PB3 concanavalin A), in the range of concentrations tested, were not considerably toxic. The AutoDock simulations showed LYS46 as the most likely active site for covalent bond formation during PB3-concanavalin A conjugation. In addition, theoretical studies have shown that PB3 is characterized by good bioavailability and absorption/transmission across the cell membrane. This molecule will not bioaccumulate in living organisms and should be excreted in urine without interacting with other drugs. This work provided promising results for the red fluorescent probe (PB3) as a valuable alternative to commercial probes designed for cellular labeling in biological and biomedical research. PMID- 29043361 TI - Ion transport in gel and gel-liquid systems for LiClO4-doped PMMA at the meso- and nanoscales. AB - Solid and gel electrolytes offer significant advantages for cycle stability and longevity in energy storage technologies. These advantages come with trade-offs such as reduced conductivity and ion mobility, which can impact power density in storage devices even at the nanoscale. Here we propose experiments aimed at exploring the ion transport properties of a hybrid electrolyte system of liquid and gel electrolytes with meso and nanoscale components. We focus on single pore systems featuring LiClO4-propylene carbonate and LiClO4-PMMA gel, which are model electrolytes for energy storage devices. We identified conditions at which the systems considered featured rectifying current-voltage curves, indicating a preferential direction of ion transport. The presented ion current rectification suggests different mechanisms arising from the unique hybrid system: (i) PMMA structure imposing selectivity in fully immersed systems and (ii) ionic selectivity linked to ion sourcing from media of different ionic mobility. These mechanisms were observed to interplay with ion transport properties linked to nanopore structure i.e. cylindrical and conical. PMID- 29043363 TI - Blocking probe as a potential tool for detection of single nucleotide DNA mutations: design and performance. AB - Developing strategies to detect single nucleotide DNA mutations associated with treatment decisions in cancer patients from liquid biopsies is a rapidly emerging area of personalized medicine that requires high specificity. Here we report how to design an easy enzyme-free approach that could create a platform for detection of L858R mutation of EGFR that is a predictive biomarker of tyrosine kinase treatment in many cancers. This approach includes the addition of blocking probes with the antisense ssDNA at different blocking positions and different concentrations such as to avoid re-annealing with the respective sense ssDNA. The successful blocking strategy was corroborated by fluorescence spectroscopy in solution using two distinct FRET pairs and quartz crystal microbalance with dissipation (QCM-D) measurements under comparable experimental conditions, as the hybridization rate-limiting step in both methods is the nucleation process. The efficiency of hybridization of each blocking probe was strongly dependent on its position particularly when the analyte possesses a secondary hairpin-structure. We tested the performance of blocking probes in combination with gold nanoparticles; the obtained results were in agreement with those of QCM-D. These findings could facilitate the development of better biosensors, especially those using probes containing secondary structure. PMID- 29043364 TI - The synthesis of planar chiral pseudo-gem aminophosphine pre-ligands based on [2.2]paracyclophane. AB - The synthesis of three planar chiral pseudo-gem disubstituted [2.2]paracyclophane derived P,N-pre-ligands is reported along with preliminary results of their activity in the amination of aryl bromides and chlorides. The pseudo-gem aminophosphines were capable of mediating the coupling reaction at a loading of 1 mol%. PMID- 29043365 TI - The behavior of hydroxide and hydronium ions at the hexadecane-water interface studied with second harmonic generation and zeta potential measurements. AB - By probing the electric potential at the hexadecane-water interface with second harmonic generation and the zeta potential at the surface of a hexadecane droplet in its emulsion, we show that hydronium ions don't have a specific affinity to the oil-water interface although hydroxide ions do. The observed apparent affinity of the hydronium ions to the hexadecane-water interface is more likely a result of the electro-static attraction effect. The adsorption free energy of the hydroxide ions at the oil-water interface was estimated to be -8.3 kcal mol-1. This study provides more experimental evidence for understanding the behavior of hydronium and hydoxide ions at the oil-water interface. PMID- 29043366 TI - Distance dependent photoacoustics revealed through DNA nanostructures. AB - Molecular rulers that rely on the Forster resonance energy transfer (FRET) mechanism are widely used to investigate dynamic molecular processes that occur on the nanometer scale. However, the capabilities of these fluorescence molecular rulers are fundamentally limited to shallow imaging depths by light scattering in biological samples. Photoacoustic tomography (PAT) has recently emerged as a high resolution modality for in vivo imaging, coupling optical excitation with ultrasound detection. In this paper, we report the capability of PAT to probe distance-dependent FRET at centimeter depths. Using DNA nanotechnology we created several nanostructures with precisely positioned fluorophore-quencher pairs over a range of nanoscale separation distances. PAT of the DNA nanostructures showed distance-dependent photoacoustic signal enhancement and demonstrated the ability of PAT to reveal the FRET process deep within tissue mimicking phantoms. Further, we experimentally validated these DNA nanostructures as a novel and biocompatible strategy to augment the intrinsic photoacoustic signal generation capabilities of small molecule fluorescent dyes. PMID- 29043367 TI - Boron nitride nanotubes as a heat sinking and stress-relaxation layer for high performance light-emitting diodes. AB - High-density threading dislocations, the presence of biaxial compressive strain, and heat generation are the major limitations obstructing the performance and reliability of light emitting diodes (LEDs). Herein, we demonstrate a facile epitaxial lateral overgrowth (ELOG) method by incorporating boron nitride nanotubes (BNNTs) on a sapphire substrate by spray coating to resolve the above issues. Atomic force microscopy, X-ray diffraction, micro-Raman, and photoluminescence measurements confirmed the growth of a high quality GaN epilayer on the BNNT-coated sapphire substrate with reduced threading dislocations and compressive strain owing to the ELOG process. GaN LEDs fabricated using this approach showed a significant enhancement in the internal quantum efficiency and electroluminescence intensity compared to conventional LEDs grown on sapphire. Moreover, reduced efficiency droop and surface temperature at high injection currents were achieved due to the excellent thermal stability and conductivity of BNNTs. Based on our findings we infer that the BNNTs would be a promising material for high power devices vulnerable to self heating problems. PMID- 29043368 TI - Self-coacervation of modular squid beak proteins - a comparative study. AB - The beak of the Humboldt squid is a biocomposite material made solely of organic components - chitin and proteins - which exhibits 200-fold stiffness and hardness gradients from the soft base to the exceptionally hard tip (rostrum). The outstanding mechanical properties of the squid beak are achieved via controlled hydration and impregnation of the chitin-based scaffold by protein coacervates. Molecular-based understanding of these proteins is essential to mimic the natural beak material. Here, we present detailed studies of two histidine-rich beak proteins (HBP-1 and -2) that play central roles during beak bio-fabrication. We show that both proteins have the ability to self-coacervate, which is governed intrinsically by the sequence modularity of their C-terminus and extrinsically by pH and ionic strength. We demonstrate that HBPs possess dynamic structures in solution and achieve maximum folding in the coacervate state, and propose that their self-coacervation is driven by hydrophobic interactions following charge neutralization through salt-screening. Finally, we show that subtle differences in the modular repeats of HBPs result in significant changes in the rheological response of the coacervates. This knowledge may be exploited to design self coacervating polypeptides for a wide range of engineering and biomedical applications, for example bio-inspired composite materials, smart hydrogels and adhesives, and biomedical implants. PMID- 29043369 TI - Contrasting water adhesion strengths of hydrophobic surfaces engraved with hierarchical grooves: lotus leaf and rose petal effects. AB - The (de)wetting transitions of hierarchical grooves periodically engraved on a hydrophobic surface were investigated using a fully atomistic molecular dynamics simulation. The (meta) stable and transition states with sagging or depinning liquid surfaces were identified by calculating the free energy profiles of the (de)wetting transitions. The dewetting transitions for wide and narrow minor grooves have large and small activation free energies, respectively, exhibiting contrasting water adhesion forces as found for rose petals and lotus leaves. PMID- 29043370 TI - Enhanced efficiency and air-stability of NiOX-based perovskite solar cells via PCBM electron transport layer modification with Triton X-100. AB - We modified phenyl-C61-butyric acid methyl ester (PCBM) for use as a stable, efficient electron transport layer (ETL) in inverted perovskite solar cells (PSCs). PCBM containing a surfactant Triton X-100 acts as the ETL and NiOX nanocrystals act as a hole transport layer (HTL). Atomic force microscopy and scanning electron microscopy images showed that surfactant-modified PCBM (s-PCBM) forms a high-quality, uniform, and dense ETL on the rough perovskite layer. This layer effectively blocks holes and reduces interfacial recombination. Steady state photoluminescence and electrochemical impedance spectroscopy analyses confirmed that Triton X-100 improved the electron extraction performance of PCBM. When the s-PCBM ETL was used, the average power conversion efficiency increased from 10.76% to 15.68%. This improvement was primarily caused by the increases in the open-circuit voltage and fill factor. s-PCBM-based PSCs also showed good air stability, retaining 83.8% of their initial performance after 800 h under ambient conditions. PMID- 29043371 TI - Decoding glycan protein interactions by a new class of asymmetric N-glycans. AB - N-Glycans are normally involved in crucial physiological and disease processes by interactions with glycan-binding proteins. So far structurally defined N-glycans have been good candidates for glycan binding study. Herein, a class of homogeneous asymmetric N-glycans was synthesized by coupling glycan-oxazoline and N-glycans using EndoM N175Q catalyzed quick glycan extension. Branch-biased binding and spacial inhibition caused by the bulky group on the other branch of N glycan were observed in glycan protein interactions involving lectins and these glycans by glycan microarray study. These new compounds are valuable for functional glycomic studies to better understand new functions of glycans and glycan-binding proteins. PMID- 29043372 TI - Environmental noise and breast cancer risk? PMID- 29043373 TI - Correction to: Venoarterial extracorporeal membrane oxygenation for refractory cardiogenic shock post-cardiac arrest. AB - The second element of the first author's name was misinterpreted as a given name, whereas in fact it is part of his family name. The correct version of his name for indexing purposes is therefore M. Pineton de Chambrun (not M. P. de Chambrun). PMID- 29043374 TI - [Overactive bladder-which treatment when?] AB - The term OAB (overactive bladder) describes a symptom complex. Therefore, initial treatment should be based on clinical symptoms and the results of basic diagnostics. Patient preference is essential for the choice of the initial treatment. Behavioural therapy, electrostimulation and medical treatment are available treatment options. If these are not effective, extended diagnostic examinations should be performed prior to minimally invasive treatments, like onabotulinumtoxin injections in the detrusor or sacral neuromodulation. Surgical interventions like augmentation cystoplasty are rarely required today. PMID- 29043375 TI - Assessing the structure and meaningfulness of the dissociative subtype of PTSD. AB - PURPOSE: Studies conducted in the USA, Canada and Denmark have supported the existence of the dissociative PTSD subtype, characterized primarily by symptoms of depersonalization and derealization. The current study aimed to examine the dissociative PTSD subtype in an Eastern European, predominantly female (83.16%) sample, using an extended set of dissociative symptoms. METHODS: A latent profile analysis was applied to the PTSD and dissociation data from 689 trauma-exposed university students from Slovakia. RESULTS: Four latent profiles of varying PTSD and dissociation symptomatology were uncovered. They were named non-symptomatic, moderate PTSD, high PTSD and dissociative PTSD. The dissociative PTSD profile showed elevations on depersonalization and derealization, but also the alternative dissociative indicators of gaps in awareness and memory, sensory misperceptions and cognitive and behavioural re-experiencing. The core PTSD symptoms of 'memory impairment' and 'reckless or self-destructive behaviour' were also significantly elevated in the dissociative PTSD profile. Moreover, anxiety and anger predicted membership in the dissociative PTSD profile. CONCLUSION: The results provide support for the proposal that the dissociative PTSD subtype can be characterized by a variety of dissociative symptoms. PMID- 29043376 TI - Enhanced rhamnolipid production in Burkholderia thailandensis transposon knockout strains deficient in polyhydroxyalkanoate (PHA) synthesis. AB - Microbially produced rhamnolipids have significant commercial potential; however, the main bacterial producer, Pseudomonas aeruginosa, is an opportunistic human pathogen, which limits biotechnological exploitation. The non-pathogenic species Burkholderia thailandensis produces rhamnolipids; however, yield is relatively low. The aim of this study was to determine whether rhamnolipid production could be increased in Burkholderia thailandensis through mutation of genes responsible for the synthesis of the storage material polyhydroxyalkanoate (PHA), thereby increasing cellular resources for the production of rhamnolipids. Potential PHA target genes were identified in B. thailandensis through comparison with known function genes in Pseudomonas aeruginosa. Multiple knockout strains for the phbA, phbB and phbC genes were obtained and their growth characteristics and rhamnolipid and PHA production determined. The wild-type strain and an rhamnolipid (RL)-deficient strain were used as controls. Three knockout strains (DeltaphbA1, DeltaphbB1 and DeltaphbC1) with the best enhancement of rhamnolipid production were selected for detailed study. DeltaphbB1 produced the highest level of purified RL (3.78 g l-1) compared to the wild-type strain (1.28 g l-1). In DeltaphbB1, the proportion of mono-rhamnolipid was also increased compared to the wild-type strain. The production of PHA was reduced by at least 80% in all three phb mutant strains, although never completely eliminated. These results suggest that, in contrast to Pseudomonas aeruginosa, knockout of the PHA synthesis pathway in Burkholderia thailandensis could be used to increase rhamnolipid production. The evidence of residual PHA production in the phb mutant strains suggests B. thailandensis possesses a secondary unelucidated PHA synthesis pathway. PMID- 29043377 TI - [Lung cancer : What has been confirmed in therapy?] AB - Metastatic non-small cell lung cancer has now been subdivided into several subtypes. The five basic principles of treatment include chemotherapy, anti angiogenic therapy, targeted therapy, immunotherapy and early palliative care. The latter should be implemented for all patients with metastatic lung cancer. The use of the other modalities depends on the histological subtype, as well as on the immunohistochemical and molecular features of the tumor. PMID- 29043378 TI - [Neurogenic myopathies and imaging of muscle denervation]. AB - CLINICAL ISSUE: Neurogenic myopathies are primary diseases of the nervous system, which secondarily result in denervation of the target musculature. The spectrum of potential causes is manifold ranging from acute traumatic injuries and chronic compression to neurodegenerative, inflammatory, metabolic and neoplastic processes. STANDARD DIAGNOSTIC METHODS: The medical history, clinical neurological examination, and electrophysiological tests including electromyography and nerve conduction studies are crucial in diagnosing neuropathic myopathies. Electromyography is the gold standard for diagnosing muscle denervation. METHODICAL INNOVATIONS: Additional imaging methods and magnetic resonance imaging (MRI) in particular, are capable of contributing valuable information. The MRI examination of denervated musculature shows edema, an increase in the apparent diffusion coefficient (ADC) and hyperperfusion. Chronic denervation results in fatty degeneration and atrophy of affected muscles, which are also detectable by MRI. PERFORMANCE: Although the MRI findings in muscle denervation are relatively unspecific, they show a high sensitivity, comparable to electromyography. Dedicated MR neurography may often visualize the underlying lesion(s) of the innervating nerve(s). ACHIEVEMENTS: Besides high sensitivity, comparable to electromyography, MRI is capable of evaluating muscles which are inaccessible for needle electromyography. Due to its non-invasive character, MRI is ideal for follow-up examinations. PRACTICAL RECOMMENDATIONS: The use of MRI is often a meaningful addition to the diagnostics of neurogenic myopathies. The extent and distribution pattern of muscular alterations often provide information on the localization of the causative nerve damage. A correct diagnosis or at least a narrowing down of possible differential diagnoses can often be achieved using MRI. PMID- 29043380 TI - Are We Underestimating Microplastic Contamination in Aquatic Environments? AB - Plastic debris, specifically microplastic in the aquatic environment, is an escalating environmental crisis. Efforts at national scales to reduce or ban microplastics in personal care products are starting to pay off, but this will not affect those materials already in the environment or those that result from unregulated products and materials. To better inform future microplastic research and mitigation efforts this study (1) evaluates methods currently used to quantify microplastics in the environment and (2) characterizes the concentration and size distribution of microplastics in a variety of products. In this study, 50 published aquatic surveys were reviewed and they demonstrated that most (~80%) only account for plastics >= 300 MUm in diameter. In addition, we surveyed 770 personal care products to determine the occurrence, concentration and size distribution of polyethylene microbeads. Particle concentrations ranged from 1.9 to 71.9 mg g-1 of product or 1649 to 31,266 particles g-1 of product. The large majority ( > 95%) of particles in products surveyed were less than the 300 MUm minimum diameter, indicating that previous environmental surveys could be underestimating microplastic contamination. To account for smaller particles as well as microfibers from synthetic textiles, we strongly recommend that future surveys consider methods that materials < 300 MUm in diameter. PMID- 29043379 TI - Copy number variation and disease resistance in plants. AB - Plant genome diversity varies from single nucleotide polymorphisms to large-scale deletions, insertions, duplications, or re-arrangements. These re-arrangements of sequences resulting from duplication, gains or losses of DNA segments are termed copy number variations (CNVs). During the last decade, numerous studies have emphasized the importance of CNVs as a factor affecting human phenotype; in particular, CNVs have been associated with risks for several severe diseases. In plants, the exploration of the extent and role of CNVs in resistance against pathogens and pests is just beginning. Since CNVs are likely to be associated with disease resistance in plants, an understanding of the distribution of CNVs could assist in the identification of novel plant disease-resistance genes. In this paper, we review existing information about CNVs; their importance, role and function, as well as their association with disease resistance in plants. PMID- 29043381 TI - Transformed follicular lymphoma. AB - Follicular Lymphoma (FL) is the second most common type of non-Hodgkin lymphoma and is considered to be the prototype of indolent lymphomas. Histologic transformation into an aggressive lymphoma, which is expected to occur at a rate of 2 to 3% each year, is associated with rapid progression, treatment resistance, and poor prognosis. Recent modifications to the physiopathologic mechanism of transformed follicular lymphoma (t-FL) have been proposed, including genetic and epigenetic mechanisms as well as a role for the microenvironment. Although t-FL is considered a devastating complication, as it is associated with treatment refractory disease and a dismal outcome, recent data in the rituximab era have suggested that not only is the prognosis less severe than reported in the previous literature but the risk of transformation is also lower. Thus, this study aimed to review the most recent research on t-FL in an attempt to better understand the clinical meaning of transformation from FL to diffuse large B cell lymphoma (DLBCL) and the impact of current treatment strategies on the curability of this intriguing subentity of lymphoma. PMID- 29043382 TI - Cell transfer of information via miR-loaded exosomes: a biophysical approach. AB - A new communication route among cells was reported in recent years, via extracellular vesicles and their cargo. Exosomes in particular are attracting increasing interest as privileged mediators of this cell communication route. The exosome-mediated transfer of nucleic acids, especially of microRNAs, is particularly promising for their use both as biomarkers of pathologies and as a therapeutic tool. Here, a simplified model of interaction among cells, microRNAs and vesicles is studied using a biophysical approach. A synthetic and fluorescent microRNA (i.e. miR-1246 conjugated with TAMRA) was selected to model cell communication, monitoring its internalization in cells. The fluorescent miR-1246, either naked or included in synthetic or natural vesicles, was incubated with human breast adenocarcinoma cells (MCF7) for different times. A comparison between this human microRNA and its DNA copy or an exogenous microRNA (from Caenorhabditis elegans) allowed assessment of the specificity of the information transfer through microRNAs, and especially associated with exosomes. The uptake of naked miR-1246 was indeed higher both in terms of number of targeted cells and intensity of fluorescence signal with respect to the other nucleic acids tested. The same occurred with miR-1246 loaded exosomes, evidencing a specific uptake only partially due to the lipidic components and present only when the human microRNA was loaded in exosomes, which were themselves derived from the same MCF7 cells. PMID- 29043384 TI - Reply to the Letter: "Acute Carotid Artery Stent Thrombosis". PMID- 29043383 TI - Determination of heme in microorganisms using HPLC-MS/MS and cobalt(III) protoporphyrin IX inhibition of heme acquisition in Escherichia coli. AB - One of the main threats to the achievements in modern medicine is antimicrobial resistance. Molecular targeting of bacterial acquisition mechanisms of heme has been suggested to be an alternative to antibiotics. In the present study, HPLC MS/MS combined with a simple clean-up based on liquid-liquid extraction has been developed and evaluated for simultaneous determination of heme and porphyrin heme precursors in microorganisms. Experimental design was used to optimize the extraction parameters, to obtain a method with high recovery, low matrix effects, and high precision. The effects of additives in the culture medium on the biosynthesis of heme were studied using Escherichia coli as a model microorganism. 5-Aminolaevulinic acid and hemin increased the heme concentration in E. coli by a factor of 1.5 and 4.5, respectively. Addition of 5 aminolaevulinic acid bypassed the E. coli negative feedback control of heme biosynthesis, which led to high amounts of intracellular porphyrins. The high heme concentration obtained when hemin was used as a culture additive shows that E. coli has an uptake of heme from its surroundings. In contrast, addition of cobalt protoporphyrin IX to the growth medium reduced the amount of heme in E. coli, demonstrating this compound's ability to mimic real heme and inhibit the heme acquisition mechanisms. PMID- 29043385 TI - Whole-Gland Prostate Cancer Cryoablation with Magnetic Resonance Imaging Guidance: One-Year Follow-Up. AB - PURPOSE: Patients who develop prostate cancer after prior abdominal perineal resection are poor surgical candidates, and have limited treatment options. Therefore, our goal is to present results from a single institutional experience of four patients who underwent whole gland MRI-guided cryoablation with a history complicated by prior abdominoperineal resection. MATERIALS AND METHODS: Four MRI guided cryoablative treatments (mean age 64, range 59-69 years) for primary and locally recurrent prostate adenocarcinoma were retrospectively reviewed in patients with prior abdominal perineal resection for colorectal cancer (3) and juvenile polyposis (1). Average prostate volume prior to ablation was 23 cc, with an average PSA of 5.6 ng/mL. For each gland, 7-10 cryoprobes were placed approximately 0.5 cm apart in the prostate gland under MRI guidance by a transperineal approach with 3-4 freeze-thaw cycles performed. Each patient had follow up imaging and PSA measurements out to 12 months post ablation. RESULTS: All four patient's PSA dropped below 0.1 ng/mL at 3-6 month post-ablation and remained at these levels at 12 months. Three of the 4 patients had PSA measurements to 33 months post-ablation, with no evidence of recurrence. No patient developed urinary incontinence due to the whole gland cryoablation. CONCLUSION: With all four patients in our study having undetectable PSAs 12 months post ablation, and with no patient developing urinary incontinence due to the cryoablation, MRI-guided cryoablation appears to be a promising treatment option in patients who are poor surgical candidates due to prior pelvic surgery and/or radiation. PMID- 29043386 TI - Use of a Re-entry Device in Left Subclavian Occlusion: Case Series. AB - PURPOSE: To describe the use of a re-entry catheter in the endovascular treatment of left subclavian stenosis. MATERIALS AND METHODS: We present three patients where initial attempts at re-vascularisation using standard techniques were unsuccessful. An OUTBACK catheter was employed to facilitate re-entry in these patients. RESULTS: True lumen re-entry was achieved in all patients, leading to successful treatment of all stenoses. There was a lack of filling of the left vertebral artery post-angioplasty in one patient; this was not clinically significant. CONCLUSION: The case series presented is encouraging for the use of a re-entry catheter in the treatment of subclavian occlusion. In our limited experience this has proved to be a safe technique for use in patients who fail re vascularisation by standard methods; a larger study is required to confirm this. PMID- 29043387 TI - CYP3A genotypes of donors but not those of the patients increase the risk of acute rejection in renal transplant recipients on calcineurin inhibitors: a pilot study. AB - PURPOSE: We aimed to determine whether polymorphisms in CYP3A genes may affect the risk of acute rejection episodes (ARE) in renal transplant recipients treated with calcineurin inhibitors (CNIs). METHODS: One hundred and thirty seven patients and their respective donors were screened, by RT-PCR techniques, for three polymorphisms previously related with CNI pharmacokinetics and pharmacodynamics (CYP3A4*1B, CYP3A4*22 and CYP3A5*3). Genotypes of donors and recipients were associated by logistic regression models with ARE risk and exposure to CNIs. Clinical and pharmacokinetic parameters were recorded at four time-points after transplant (1 week and 1, 5 and 12 months). RESULTS: Nineteen patients (13.86%) experienced ARE. Patients who received a kidney from a donor carrying the CYP3A4*1B or CYP3A5*1 variant experienced ARE more frequently than those whose donor carried wild-type genotypes [OR = 6.29 (1.62-24.39), p = 0.008 and OR = 3.42 (1.06-11.01), p = 0.039, respectively]. The combined analysis of the CYP3A4*1B/3A5*1 alleles also revealed an increased risk in patients whose donors carried both variants [OR = 6.24 (1.60-24.33), p = 0.007]. The CYP3A genotype of the recipient did not affect ARE risk, although it did determine the degree of exposure to CNI throughout the first year after transplant. Patients with one or two variant alleles displayed lower concentration-to-dose ratios (CDRs) than non-carriers, with differences increasing with time after transplant (p values = 0.039, 0.004, 6.0 e-04 and 2.7 e-07 in the four time-points). CONCLUSIONS: Our preliminary findings suggest that the determination of the CYP3A genotype of the donor, but not that of the recipient, may be useful to predict the incidence of acute rejection in renal transplantation. PMID- 29043389 TI - Biomagnification of Mercury in Fish from Two Gold Mining-Impacted Tropical Marshes in Northern Colombia. AB - Total mercury concentrations (T-Hg) and stable isotope ratios (delta15N and delta13C) were analyzed in the muscle of fish, collected at two marshes impacted by gold mining in Northern Colombia, to evaluate the seasonal and spatial behavior of these variables and mercury biomagnification based on their relationship with delta15N ratios in the fish. There was not significant (p > 0.05) seasonal differences (dry and rainy season) in delta15N and delta13C values in none marsh, suggesting that these fish species keep a similar feed pattern within each marsh along the year. However, there were significant differences (p < 0.05) between marshes in delta15N, delta13C, and T-Hg, as well as significant seasonal differences (p < 0.05) in T-Hg values for some species, suggesting the possible influence of factors, such as differences in length of food chains between marshes and different degree of anthropogenic impact in relation to human settlements, farmland, livestock (higher in Ayapel marsh), and gold mining activity (higher in La Raya marsh). Correlations analysis showed significant (p < 0.05) relationships between T-Hg concentrations and delta15N values, as well as trophic level, evidencing a T-Hg biomagnification process in the fish food chain from both marshes and consequently a potential health risk for human riverside inhabitants who eat these fish. PMID- 29043388 TI - Isolation and Potential Biocementation of Calcite Precipitation Inducing Bacteria from Colombian Buildings. AB - Microbiological induced calcium carbonate or calcite precipitation (MICP) has become a highly researched issue due to its multiple applications in the construction industry, being a promising alternative with a great biotechnological importance. In this work, potential calcite precipitation inducing bacteria were isolated from mortar and concrete samples of different buildings at the National University of Colombia. Eighteen crystal-precipitating strains were recovered in Urea-CaCl2 solid medium. The 16S rRNA gene sequencing identified isolates as Arthrobacter, Psychrobacillus and Rhodococcus genera. It is reported, for the first time, the calcite precipitation by P. psycrodurans and R. qingshengii. Optical microscopy and Scanning Electron Microscopy showed crystals with irregular and spherical shapes, and beige and white colours. Furthermore, crystals formation appeared to be strain-specific. X-Ray diffraction analysis confirmed crystals composition as CaCO3. Biocementation tests showed that MICP treatments of mortar cubes using P. psycrodurans caused an increase in their compressive strength compared to control samples. The positive action of a native MICP strain in mortar blocks biomineralization is shown, which is of great interest and potential for the construction industry. PMID- 29043390 TI - p-Nitrophenyl Acetate Esterase Activity and Cortisol as Biomarkers of Metal Pollution in Blood of Olive Ridley Turtles (Lepidochelys olivacea). AB - This study was designed to determine the concentrations of p-nitrophenyl acetate esterase activity (EA) and cortisol in serum of marine Olive Ridley turtles (Lepidochelys olivacea) from a Mexican Pacific population ("La Escobilla" beach) and to evaluate the possible relationship of inorganic elements with these biomarkers. EA, cortisol, and selected chemical elements (Cd, Pb, Ti, Sr, Se, Al, As, and Zn) were measured in the blood of 44 sea turtles from the Eastern Pacific (Southeast Mexico). Serum EA ranged from 0.4 to 3.9 UI mL-1, and cortisol concentrations ranged from 0.07 to 2.5 MUL dL-1. A strong negative correlation between EA and cortisol was observed (r = - 0.59, p < 0.01), and significant correlations also were found between EA and important metals, such as Cd (r = - 0.31, p < 0.05) and Pb (r = - 0.27, p < 0.05), and elements of growing concern like Ti (r = - 0.37, p < 0.01) or Al (r = - 0.34, p < 0.05) and between cortisol and Sr (r = 0.29, p < 0.05), Se (r = - 0.38, p < 0.01), and As (r = - 0.26, p < 0.05). These results suggest that turtles chronically exposed to different inorganic elements (such as Pb and Cd), driving to a highly consume of esterase and to a prolonged cortisol elevation. The obtained results indicate the usefulness of these biomarkers in the assessment of inorganic elements pollution in this species. PMID- 29043391 TI - Analysis of the evolution of cortical and trabecular bone compartments in the proximal femur after spinal cord injury by 3D-DXA. AB - : Marked trabecular and cortical bone loss was observed at the proximal femur short-term after spinal cord injury (SCI). 3D-DXA provided measurement of vBMD evolution at both femoral compartments and cortical thinning, thereby suggesting that this technique could be useful for bone analysis in these patients. INTRODUCTION: SCI is associated with a marked increase in bone loss and risk of osteoporosis development short-term after injury. 3D-DXA is a new imaging analysis technique providing 3D analysis of the cortical and trabecular bone from DXA scans. The aim of this study was to assess the evolution of trabecular macrostructure and cortical bone using 3D-DXA in patients with recent SCI followed over 12 months. METHODS: Sixteen males with recent SCI (< 3 months since injury) and without antiosteoporotic treatment were included. Clinical assessment, bone mineral density (BMD) measurements by DXA, and 3D-DXA evaluation at proximal femur (analyzing the integral, trabecular and cortical volumetric BMD [vBMD] and cortical thickness) were performed at baseline and at 6 and 12 months of follow-up. RESULTS: vBMD significantly decreased at integral, trabecular, and cortical compartments at 6 months (- 8.8, - 11.6, and - 2.4%), with a further decrease at 12 months, resulting in an overall decrease of - 16.6, - 21.9, and - 5.0%, respectively. Cortical thickness also decreased at 6 and 12 months (- 8.0 and - 11.4%), with the maximal decrease being observed during the first 6 months. The mean BMD losses by DXA at femoral neck and total femur were - 17.7 and - 21.1%, at 12 months, respectively. CONCLUSIONS: Marked trabecular and cortical bone loss was observed at the proximal femur short-term after SCI. 3D-DXA measured vBMD evolution at both femoral compartments and cortical thinning, providing better knowledge of their differential contributory role to bone strength and probably of the effect of therapy in these patients. PMID- 29043392 TI - Complex interventions can increase osteoporosis investigations and treatment: a systematic review and meta-analysis. AB - Osteoporosis is affecting over 200 million people worldwide. Despite available guidelines, care for these patients remains sub-optimal. We developed an osteoporosis tool to address the multiple dimensions of chronic disease management. Findings from its evaluation showed a significant increase from baseline in osteoporosis investigations and treatment, so we are revising this tool to include multiple chronic conditions including an update of evidence about osteoporosis. Our objectives were to conduct a systematic review of osteoporosis interventions in adults at risk for osteoporosis. We searched bibliometric databases for randomized controlled trials (RCTs) in any language evaluating osteoporosis disease management interventions in adults at risk for osteoporosis. Reviewer pairs independently screened citations and full-text articles, extracted data, and assessed risk of bias. Analysis included random effects meta-analysis. Primary outcomes were osteoporosis investigations and treatment, and fragility fractures. Fifty-five RCTs and one companion report were included in the analysis representing 165,703 patients. Our findings from 55 RCTs and 18 sub-group meta analyses showed that complex implementation interventions with multiple components consisting of at least education + feedback + follow-up significantly increased the initiation of osteoporosis medications, and interventions with at least education + follow-up significantly increased the initiation of osteoporosis investigations. No significant impact was found for any type of intervention to reduce fracture. Complex interventions that include at least education + follow-up or feedback have the most potential for increasing osteoporosis investigations and treatment. Patient education appears to be an important component in osteoporosis disease management. PMID- 29043393 TI - Characterization of a set of abdominal neuroendocrine cells that regulate stress physiology using colocalized diuretic peptides in Drosophila. AB - Multiple neuropeptides are known to regulate water and ion balance in Drosophila melanogaster. Several of these peptides also have other functions in physiology and behavior. Examples are corticotropin-releasing factor-like diuretic hormone (diuretic hormone 44; DH44) and leucokinin (LK), both of which induce fluid secretion by Malpighian tubules (MTs), but also regulate stress responses, feeding, circadian activity and other behaviors. Here, we investigated the functional relations between the LK and DH44 signaling systems. DH44 and LK peptides are only colocalized in a set of abdominal neurosecretory cells (ABLKs). Targeted knockdown of each of these peptides in ABLKs leads to increased resistance to desiccation, starvation and ionic stress. Food ingestion is diminished by knockdown of DH44, but not LK, and water retention is increased by LK knockdown only. Thus, the two colocalized peptides display similar systemic actions, but differ with respect to regulation of feeding and body water retention. We also demonstrated that DH44 and LK have additive effects on fluid secretion by MTs. It is likely that the colocalized peptides are coreleased from ABLKs into the circulation and act on the tubules where they target different cell types and signaling systems to regulate diuresis and stress tolerance. Additional targets seem to be specific for each of the two peptides and subserve regulation of feeding and water retention. Our data suggest that the ABLKs and hormonal actions are sufficient for many of the known DH44 and LK functions, and that the remaining neurons in the CNS play other functional roles. PMID- 29043394 TI - In Silico Analyses Reveal the Relationship Between SIX1/EYA1 Mutations and Conotruncal Heart Defects. AB - Conotruncal heart defects (CTDs) represent a group of severe and complicated congenital cardiovascular malformations and require opportune clinical interventions once diagnosed. Occurrence of CTD is related to the functional abnormality of the second heart field (SHF), and variants of genes which regulate the development of the second heart field have been recognized as the main genetic factors leading to CTDs. Previous studies indicated that transcriptional complex SIX1/EYA1 may contribute to SHF development, and SIX1/EYA1 knockout mice exhibited a series of conotruncal malformations. Here, we recruited and sequenced 600 Chinese conotruncal heart defect patients and 300 controls. We screened out one novel SIX1 mutation (SIX1-K134R) and four EYA1 rare mutations (EYA1-A227T, EYA1-R296H, EYA1-Q397R, EYA1-G426S), all variants were present only in the case cohort, and the mutated sites were highly conserved. We then analyzed mutations by software including Sift, PolyPhen-2, PROVEAN, Mutation Taster, HOPE, and SWISS PdbViewer. The results showed that the mutations had varying degrees of pathogenic risk, protein properties, spatial conformations, and domain functions which might be altered or influenced. Through biological and in silico analyses, our study suggests an association between SIX1/EYA1 mutations and cardiovascular malformations, SIX1/EYA1 mutations might be partially responsible for CTDs. PMID- 29043395 TI - Measuring Flow Hemodynamic Indices and Oxygen Consumption in Children with Pulmonary Hypertension: A Comparison of Catheterization and Phase-Contrast MRI. AB - We sought to compare pulmonary flow hemodynamic indices obtained by Fick and thermodilution catheterization techniques with phase-contrast MRI (PC-MRI) in children with diverse etiologies of pulmonary arterial hypertension (PAH). Calculation of pulmonary flow ([Formula: see text]) using the Fick principle in most catheter laboratories relies on an estimate of oxygen consumption which may limit its reliability. Flow hemodynamic indices acquired from thirty patients with PAH who underwent successful same-day PC-MRI and catheterization were evaluated for absolute and percent bias. Comparison of [Formula: see text] between PC-MRI and Fick revealed poor agreement with an absolute bias of 0.96 +/- 0.53 L/min/m2 and percent bias of 27.7 +/- 19.6%. Same analysis between PC-MRI and thermodilution revealed better agreement as demonstrated by absolute bias 0.64 +/- 0.47 L/min/m2 and percent bias 16.8 +/- 12.3%. Retrospectively calculated [Formula: see text] from PC-MRI and LaFarge equations revealed poor agreement, with an absolute bias of 33.4 +/- 21.6 mL/min/m2 and percent bias of 25.8 +/- 12.6%. We found that Fick-derived flow hemodynamics dramatically differs from PC-MRI computed metrics in children with PAH. The non-invasive nature of PC MRI and short acquisition time is ideal for pediatric flow evaluation and may offer a novel route of absolute flow and resistance assessment when combined with cardiac catheterization. PMID- 29043397 TI - Myocardial Fistulisation and Coronary Arterial Ectasia in Children with Univentricular Circulation: An Under-Recognised Problem. AB - Among 241 children with univentricular circulation who underwent total cavopulmonary connection (Glenn or Fontan) over a 17 years period (January 2000 April 2017), we found two patients who had diffuse coronary fistulisation of their myocardium (0.8%). We also report an additional third case from Oak Lawn, Illinois, USA. One of the children had documented normal coronary arteries and myocardium at catheterisation prior to development of the fistulisation process. The same child also developed extensive veno-venous collaterals. All children had evidence of elevated pulmonary arterial pressures and were treated with a combination of pulmonary vasodilators. The presence of chronic hypoxaemia and elevated filling pressures could potentially have contributed to coronary endothelial dysfunction, thereby giving rise to the coronary vasculopathy and myocardial fistulisation. Alternatively, this myocardial fistulisation process may be present from early in life and not recognised. This may necessitate early referral for orthotopic cardiac transplantation. Diffuse fistulisation of the myocardium in children and young adults with univentricular circulation may be an under-recognised occurrence and coronary angiography should be considered in these patients. PMID- 29043398 TI - Oral Paracetamol for Patent Ductus Arteriosus Rescue Closure. AB - The objective of this study was to ascertain the efficacy of oral paracetamol in closing a symptomatic patent ductus arteriosus (PDA) when used as 'rescue' option. After obtaining ethics approval, a retrospective appraisal of the data from April 2014 to July 2015 was performed. Infants who were administered oral paracetamol either after unsuccessful therapy with ibuprofen or where it was considered contraindicated were included. A previously published echocardiographic scoring schema to stratify for ductal disease severity was used. Using univariate analysis, characteristics of infants with successful closure were compared with partial (a priori reduction in composite score by >= 50% of pretreatment) or no closure. Twenty infants with gestation age and birthweight of 25.7 +/- 1.5 weeks and 724.1 +/- 143 g, respectively, were studied. Complete closure was noted in 10 (50%) infants with additional four infants showing a significant reduction in haemodynamic shunting. Gestational age at birth and at therapy, chronological age at therapy, birthweight and total fluid intake were comparable between the two groups. The pre-therapy composite score had a significant association with successful closure (the higher the echocardiographic score, the lesser the closure). Concomitant furosemide therapy and late-onset sepsis had a high likelihood ratio of unsuccessful closure (11.01 [2-tailed, p = 0.005] and 5.3 [2-tailed, p = 0.07]), respectively. Oral paracetamol may be a possible therapeutic option in premature infants where therapy with first-line agents is unsuccessful or contraindicated. Concomitant sepsis and furosemide administration may affect successful therapy. PMID- 29043396 TI - Hypertension in Coarctation of the Aorta: Challenges in Diagnosis in Children. AB - Evidence indicates that patients with coarctation of the aorta (COA) suffer from increased cardiovascular morbidity and mortality in later life despite successful repair of COA in childhood. Systolic arterial hypertension is common, presenting in up to one-third of patients, and is regarded as the main driver of premature cardiovascular events in this group of patients. In this review, we discuss the prevalence and pathophysiology of hypertension in children following successful COA repair with no residual arch obstruction. The challenges in accurate blood pressure assessment at this early phase are considered and non-invasive measures of central blood pressure are discussed. Although the pathways for investigations in adults are well defined, we highlight the need to address the issues of cardiovascular surveillance in children and describe techniques which can provide complementary information for cardiovascular assessment in this group of patients such that timely treatment can occur. PMID- 29043399 TI - Immunohistochemical evaluation of molecular radiotherapy target expression in neuroblastoma tissue. AB - PURPOSE: Neuroblastoma may be treated with molecular radiotherapy, 131I meta Iodobenzylguanidine and 177Lu Lutetium DOTATATE, directed at distinct molecular targets: Noradrenaline Transporter Molecule (NAT) and Somatostatin Receptor (SSTR2), respectively. This study used immunohistochemistry to evaluate target expression in archival neuroblastoma tissue, to determine whether it might facilitate clinical use of molecular radiotherapy. METHODS: Tissue bank samples of formalin fixed paraffin embedded neuroblastoma tissue from patients for whom clinical outcome data were available were sectioned and stained with haematoxylin and eosin, and monoclonal antibodies directed against NAT and SSTR2. Sections were examined blinded to clinical information and scored for the percentage and intensity of tumour cells stained. These data were analysed in conjunction with clinical data. RESULTS: Tissue from 75 patients was examined. Target expression scores varied widely between patients: NAT median 45%, inter-quartile range 25% - 65%; and SSTR2 median 55%, interquartile range 30% - 80%; and in some cases heterogeneity of expression between different parts of a tumour was observed. A weak positive correlation was observed between the expression scores of the different targets: correlation coefficient = 0.23, p = 0.05. MYCN amplified tumours had lower SSTR2 scores: mean difference 23% confidence interval 8% - 39%, p < 0.01. Survival did not differ by scores. CONCLUSIONS: As expression of both targets is variable and heterogeneous, imaging assessment of both may yield more clinical information than either alone. The clinical value of immunohistochemical assessment of target expression requires prospective evaluation. Variable target expression within a patient may contribute to treatment failure. PMID- 29043401 TI - The lambda (twin peak) sign. PMID- 29043402 TI - Imaging characterization of adnexal lesions: Do CT findings correlate with US? AB - OBJECTIVE: To compare contrast-enhanced CT and US agreement in characterizing adnexal lesions in late post-menopausal women. MATERIALS AND METHODS: This was a HIPAA-compliant IRB-approved retrospective review of the contrast-enhanced CTs of 130 late post-menopausal women (> 55 years). The lesions were classified as simple cystic, minimally complex cystic, complex cystic, solid-cystic, or solid based on CT and US morphology. Findings were analyzed to evaluate agreement between CT and US on adnexal lesion characterization. RESULTS: One forty-one adnexal lesions were assessed by both contrast-enhanced CT and US. Overall, there was good agreement between CT and US, which agreed on the lesion morphology in 114 (81%) cases with an unweighted kappa value of 0.68 (95% CI 0.56-0.78). By CT, 83 (59%) were classified as simple cystic, of which 73/83 (88%) were confirmed as simple cystic by US. Of the remaining 10 CT simple cysts, 9 were reclassified by US as minimally complex cystic and one as complex cystic. Eight of these lesions were benign based on pathology or follow-up imaging, while two lesions remained indeterminate. By CT, 27 lesions (19%) were classified as minimally complex, while US reclassified 13 (48%) of the lesions (eight to simple cystic and five as complex or solid-cystic). Among the 31 remaining lesions, there were 4 (13%) discordances between CT and US. CONCLUSION: There is good agreement between CT and US in characterizing adnexal lesion morphology, particularly simple cysts. However, there was significant discordance seen with characterization of minimally complex cysts, indicating that these lesions need US follow-up. PMID- 29043400 TI - Static and dynamic 18F-FET PET for the characterization of gliomas defined by IDH and 1p/19q status. AB - PURPOSE: The molecular features isocitrate dehydrogenase (IDH) mutation and 1p/19q co-deletion have gained major importance for both glioma typing and prognosis and have, therefore, been integrated in the World Health Organization (WHO) classification in 2016. The aim of this study was to characterize static and dynamic O-(2-18F-fluoroethyl)-L-tyrosine (18F-FET) PET parameters in gliomas with or without IDH mutation or 1p/19q co-deletion. METHODS: Ninety patients with newly diagnosed and untreated gliomas with a static and dynamic 18F-FET PET scan prior to evaluation of tumor tissue according to the 2016 WHO classification were identified retrospectively. Mean and maximum tumor-to-brain ratios (TBRmean/max), as well as dynamic parameters (time-to-peak and slope) of 18F-FET uptake were calculated. RESULTS: Sixteen (18%) oligodendrogliomas (IDH mutated, 1p/19q co deleted), 27 (30%) astrocytomas (IDH mutated only), and 47 (52%) glioblastomas (IDH wild type only) were identified. TBRmean, TBRmax, TTP and slope discriminated between IDH mutated astrocytomas and IDH wild type glioblastomas (P < 0.01). TBRmean showed the best diagnostic performance (cut-off 1.95; sensitivity, 89%; specificity, 67%; accuracy, 81%). None of the parameters discriminated between oligodendrogliomas (IDH mutated, 1p/19q co-deleted) and glioblastomas or astrocytomas. Furthermore, TBRmean, TBRmax, TTP, and slope discriminated between gliomas with and without IDH mutation (p < 0.01). The best diagnostic performance was obtained for the combination of TTP with TBRmax or slope (accuracy, 73%). CONCLUSION: Data suggest that static and dynamic 18F-FET PET parameters may allow determining non-invasively the IDH mutation status. However, IDH mutated and 1p/19q co-deleted oligodendrogliomas cannot be differentiated from glioblastomas and astrocytomas by 18F-FET PET. PMID- 29043403 TI - Hepatic morphology abnormalities: beyond cirrhosis. AB - The diagnosis of cirrhosis can be reached on the basis of established hepatic morphological changes. However, some other conditions can mimic cirrhosis. The aim of this pictorial essay is to review the CT and MRI appearances of hepatic morphology abnormalities in the cirrhotic liver and other diseases, describing pathologic conditions that can mimic cirrhosis, with useful tips for the differential diagnosis. Mimickers of cirrhosis include congenital hepatic fibrosis, Caroli disease, Budd-Chiari Syndrome, hepatoportal sclerosis, cavernous transformation of the portal vein, pseudocirrhosis from metastatic disease, acute liver failure, post-therapeutic morphologic changes in the liver, and infective conditions including schistosomiasis and oriental cholangiohepatitis. Recognizing the hepatic morphological changes in images can help radiologists to diagnose cirrhosis and other diseases in early stages. PMID- 29043404 TI - Epiploic appendagitis: 7-year experience and relationship with visceral obesity. AB - PURPOSE: Location, size, and local inflammatory findings in primary epiploic appendagitis (EA) have not been reported outside of small studies. The association between EA and increased adiposity is controversial. The goals of this project are to compare demographics and imaging-based measurements of adiposity between patients with EA and patients with acute abdomen without EA, and to identify CT features of EA. METHODS: A consecutive sample of acute, primary EA (n = 100), and control (acute abdomen; n = 100) was selected retrospectively. Cases of suspected EA were included if they had the characteristic ovoid fatty mass and hyperattenuated ring sign on CT. Abdominal adipose volume (AAV), visceral adipose area (VAA), and subcutaneous adipose area (SAA) were quantified by CT. Location, size, and frequency of coexisting local inflammatory findings in EA patients were recorded. RESULTS: EA had 60% greater AAV, 117% greater VAA, and 35% greater SAA than control subjects (p < 0.0001). Males composed a great proportion of the EA group (67%) than the control group (41%) (p = 0.0002). Inflamed appendage was found in sigmoid colon in 49% of cases, descending colon in 23%, and right colon in 19%. Peritoneal thickening was frequent (76%) and bowel wall thickening was common (47%). Diverticulosis coexisted incidentally in 28%. CONCLUSION: EA is associated with increased abdominal adipose tissue. EA can occur in both sexes at any age, but occurs at age 50 on average and more frequently in males. Patient with EA exhibited central hyperdense dot (79%), peritoneal thickening (76%), and bowel wall thickening (47%). PMID- 29043405 TI - [Focused update on dual antiplatelet treatment : ESC guidelines 2017]. AB - Dual antiplatelet treatment (DAPT) is a cornerstone of maintenance medication of patients following elective percutaneous coronary interventions or an acute coronary syndrome (ACS), e. g. ST elevation myocardial infarction, non-ST elevation myocardial infarction and unstable angina. In recent years the inclusion of P2Y12 inhibition in addition to low-dose acetylsalicylic acid has been intensively debated. Following the introduction of the modern generation of drug-eluting stents for elective coronary interventions, the duration of the necessary DAPT has been clearly reduced. In patients with ACS the question arises when treatment with one of the more potent P2Y12 inhibitors, such as prasugrel and ticagrelor should be used instead of clopidogrel. A potential extension of DAPT beyond 12 months can be considered in high-risk patients after implantation of bioresorbable vascular scaffolds and following myocardial infarction. A special focus is on those patients who have already been treated with oral anticoagulants for stroke prevention in atrial fibrillation and require additional platelet inhibition following coronary stenting. This article summarizes and assesses the major recommendations given in the Focused Update DAPT 2017 of the European Society of Cardiology (ESC). In particular the recommendations address strategies to reduce an increased risk of bleeding based on clinical predictors. PMID- 29043406 TI - Predictive value of ScvO2 monitoring for pericardial tamponade after cardiac surgery. AB - BACKGROUND: We examined the predictive value of central venous oxygen saturation (ScvO2) changes regarding the occurrence of pericardial tamponade following cardiac surgery. METHODS: We retrospectively identified 66 consecutive patients in whom ScvO2 and arterial lactate levels were analyzed during an 8-h time interval preceding pericardiotomy due to pericardial tamponade (PT), and at equivalent time points in 30 control patients (C) who had an uncomplicated course. RESULTS: The median age of the patients was 74 years (interquartile range, 63-78). Three percent of procedures were re-operations. There were no differences between the baseline values of PT and C patients. Pericardiotomy was performed on average 1 day (0-3.5) after cardiac surgery. PT patients displayed a significant decline (p < 0.001) to lower ScvO2 levels (p < 0.001) and a significant increase (p = 0.005) to higher arterial lactate levels (p = 0.019) during the 8 h preceding pericardiotomy, whereas C patients did not (p = 0.440 and p = 0.279, respectively). PT was associated with a longer hospital stay (p = 0.04) and a higher in-hospital mortality (p = 0.008). An ScvO2 decline below 60% (p = 0.018), a delta ScvO2 decline greater than 5% (p = 0.001), and a delta lactate increase greater than 0.18 mmol/l (p = 0.002) during the 8 h preceding pericardiotomy were independently associated with PT. None of these parameters predicted in-hospital mortality. CONCLUSION: Deteriorations in ScvO2 might serve as an early marker of PT following cardiac surgery. PMID- 29043407 TI - Changes in Swallowing Symptoms and Esophageal Motility After Thyroid Surgery: A Prospective Cohort Study. AB - INTRODUCTION: Swallowing difficulties, the pathophysiology behind which is incompletely understood, have been reported in 47-83% of goiter patients referred for thyroidectomy. We aimed at examining the influence of thyroid surgery on swallowing symptoms and esophageal motility. METHODS: Thirty-three patients with benign nodular goiter undergoing thyroid surgery were included. All completed high-resolution esophageal manometry examinations and the goiter symptom scale score, assessed by the thyroid-specific patient-reported outcome measure. The evaluations were performed before and 6 months after surgery. RESULTS: Before surgery, the goiter symptom score was median 39 points (range 2-61), which improved to median five points (range 1-52) after surgery (p < 0.001). The motility parameters were within the limits of normal swallowing physiology, both before and after surgery. Only the upper esophageal sphincter (UES) pressure increased significantly from 70.6 +/- 27.7 to 87.7 +/- 43.2 mmHg after surgery (p = 0.04). Using regression analyses, there was no significant correlation between change in goiter symptoms and weight of the removed goiter, motility parameters, or motility disturbances. However, patients undergoing total thyroidectomy experienced a larger reduction in pressure in the area of the UES and former thyroid gland after surgery in comparison with patients undergoing less extensive surgery. CONCLUSIONS: Goiter symptoms improved significantly after thyroidectomy, but without correlation to esophageal motility disturbances. This information is essential when interpreting dysphagia in patients with nodular goiter, and when balancing patients' expectations to surgical goiter therapy. REGISTRATION NUMBER: NCT03100357 ( www.clinicaltrials.org ). PMID- 29043408 TI - What is the Cost of Free Cleft Surgery in the Middle East? AB - BACKGROUND: This project explores the costs of cleft lip and/or palate surgeries in Palestine and Sudan, two low- and middle-income countries (LMIC), in the Middle East. Our purpose is to examine the veracity of advertisements from international cleft organizations claiming that "250 US dollars (USD) covers the cost of a single cleft surgery." We hypothesize that the actual cost of surgery is greater than 250 USD. METHODS: Costs for each cleft surgery were organized broadly into 5 categories: hospital charges, personnel (time and money spent for health professionals to travel to LMIC, including lost wages), tests, consumables, and reusables. Each item was priced at market value during the time of data collection. Following itemization of actual costs, we compared the costs per cleft surgery among four surgical practice models: (1) visiting international surgical teams, (2) visiting international surgeon working with local teams, (3) local teams working at government hospitals, and (4) local teams working at private hospitals. RESULTS: Our results suggest that 250 USD is an underestimate of actual costs per cleft surgery in all models. The most expensive model in both Palestine and Sudan was the first model, visiting international teams performing all team functions; the cheapest surgical model in both countries was a local team working at government hospitals. The largest cost for any of these models is travel and lost wages for international team members. Eliminating this single cost (travel) decreases overall cost tremendously, but still does not approach the advertised cost of 250 USD. CONCLUSIONS: We conclude that 250 USD underestimates the actual costs to perform a single cleft surgery in Palestine and Sudan. If international cleft organizations are genuinely committed to creating sustainable international cleft programs, they should focus exclusively on training local professionals to perform surgery in hospitals of their own choosing. PMID- 29043409 TI - Margin Width of Resected Lepidic Lung Cancer Does Not Affect Recurrence After Sublobar Resection. AB - BACKGROUND: A sufficient resection margin is required for the sublobar resection of lung cancers. However, the width of the resection margin may not be important in lepidic adenocarcinoma, because such tumors are non- or minimally invasive. The purpose of this study was to determine the effect of resection margin width on the outcome of patients with lepidic-dominant adenocarcinoma after sublobar resection. METHODS: This study included 133 patients with small (<=2 cm), clinical N0M0 lung cancer who underwent sublobar resection with curative intent. The patients were divided into 4 groups: Group A, lepidic tumor with margin/tumor ratio <1; Group B, lepidic tumor with margin/tumor ratio >=1; Group C, non lepidic tumor with margin/tumor ratio <1; Group D, non-lepidic tumor with margin/tumor ratio >=1. The clinicopathological features and survival outcomes between Group A and B patients, and between Group C and D patients were compared. RESULTS: The 5-year recurrence-free survival (RFS) rates of Group A and B patients were both 100%. The 5-year RFS rates of Group C and D patients were 49.9 and 97.1%, respectively (p = 0.009). By multivariate analysis, the margin/tumor ratio was a significant independent factor for recurrence in patients with non lepidic tumors (hazard ratio = 0.157, 95% confidence interval 0.027-0.898; p = 0.037). CONCLUSIONS: Tumor recurrence after sublobar resection is not associated with short resection margins in patients with lepidic tumors. However, a short resection margin is a significant risk factor for recurrence in patients with non lepidic tumors. PMID- 29043410 TI - Determination of the absolute oral bioavailability of niraparib by simultaneous administration of a 14C-microtracer and therapeutic dose in cancer patients. AB - INTRODUCTION: Niraparib (ZejulaTM) is a poly(ADP-ribose) polymerase inhibitor recently approved by the US Food and Drug Administration for the maintenance treatment of patients with recurrent platinum-sensitive epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum-based chemotherapy. The pivotal phase III clinical trial has shown improved progression-free survival in patients receiving niraparib compared with those receiving placebo. PURPOSE: Since niraparib is administered orally, it is of interest to investigate the oral bioavailability (F po) of this novel compound, which is the aim of this study. METHODS: Six patients received an oral therapeutic dose of 300 mg niraparib, followed by a 15-min intravenous infusion of 100 ug 14C-niraparib with a radioactivity of approximately 100 nCi. The niraparib therapeutic dose was measured in plasma using a validated liquid chromatography-tandem mass spectrometry method, whereas the total 14C radioactivity and 14C-niraparib plasma levels were measured by accelerator mass spectrometry and a validated high performance liquid chromatography assay with AMS. RESULTS: The F po of niraparib was determined to be 72.7% in humans. PMID- 29043411 TI - Population pharmacokinetics of trastuzumab emtansine in previously treated patients with HER2-positive advanced gastric cancer (AGC). AB - PURPOSE: Ado-trastuzumab emtansine (T-DM1) is an antibody-drug conjugate comprising trastuzumab conjugated via a stable thioether linker to DM1, a highly potent cytotoxic agent. A population pharmacokinetics (PK) analysis was performed to characterize T-DM1 PK and evaluate the impact of patient characteristics on T DM1 PK in previously treated patients with HER2-positive advanced gastric cancer (AGC). METHODS: Following T-DM1 weekly or every three weeks dosing, T-DM1 concentration measurements (n = 780) were collected from 136 patients in the GATSBY (NCT01641939) study and analyzed using nonlinear mixed effects modeling. The influence of demographic, baseline laboratory, and disease characteristics on T-DM1 PK was examined. RESULTS: T-DM1 PK was best described by a two-compartment model with parallel linear and nonlinear (Michaelis-Menten) elimination from the central compartment. The final population model estimated linear clearance (CL) of 0.79 L/day, volume of distribution in the central compartment (V c) of 4.48 L, distribution clearance (Q) of 0.62 L/day, volume of distribution in the peripheral compartment (V p) of 1.49 L, nonlinear CL of 2.06 L/day, and KM of 1.63 MUg/mL. Parameter uncertainty was low to moderate for fixed effects, except KM (estimated with poor precision). Patients with high body weight and low baseline trastuzumab concentrations had significantly faster linear CL; those with higher body weight had significantly larger V c. CONCLUSIONS: In a HER2 positive AGC population, T-DM1 PK was best described by a two-compartment model with parallel linear and nonlinear elimination. Baseline body weight and trastuzumab concentration were identified as significant covariates for T-DM1 PK in a HER2-positive AGC population. PMID- 29043412 TI - Randomized study of etirinotecan pegol versus irinotecan as second-line treatment for metastatic colorectal cancer. AB - PURPOSE: Etirinotecan pegol (EP) is a long-acting topoisomerase-I inhibitor designed to provide sustained exposure to SN-38 (active metabolite of irinotecan). This phase II study compared EP versus irinotecan as second-line treatment for KRAS-mutant, irinotecan-naive, metastatic colorectal cancer (mCRC). METHODS: Patients were randomized to EP 145 mg/m2 or irinotecan 350 mg/m2 Q21d until disease progression/unacceptable toxicity. The primary endpoint was progression-free survival (PFS) with response determined by central radiologic review (RECIST version 1.1). RESULTS: The study was terminated before completing accrual due to evolving standards of care. Eighty-three patients were randomized. Median PFS was longer with EP versus irinotecan (4.0 versus 2.8 months, respectively; HR 0.65; 95% CI 0.40-1.04; P = 0.07). Six-month PFS rates were 32.8 and 15.4%, respectively. Median OS was 9.6 and 8.4 months in EP and irinotecan arms, respectively (HR 0.91; 95% CI 0.56-1.49). ORRs were 10 and 5%, respectively (P = 0.676); median DOR was significantly longer in EP arm (7.9 versus 1.4 months; P = 0.018). The most common grade-3/4 adverse events for EP and irinotecan were diarrhea (21 vs 20%), neutropenia (10 vs 22%), abdominal pain (14 vs 5%), nausea (14 vs 2%), and vomiting (12 vs 7%), respectively. CONCLUSION: EP is active and safe for second-line treatment of KRAS-mutant, irinotecan-naive mCRC. PMID- 29043414 TI - ? PMID- 29043413 TI - Cholecystokinin receptor antagonist alters pancreatic cancer microenvironment and increases efficacy of immune checkpoint antibody therapy in mice. AB - Advanced pancreatic ductal adenocarcinoma (PDAC) has typically been resistant to chemotherapy and immunotherapy; therefore, novel strategies are needed to enhance therapeutic response. Cholecystokinin (CCK) has been shown to stimulate growth of pancreatic cancer. CCK receptors (CCKRs) are present on pancreatic cancer cells, fibroblasts, and lymphocytes. We hypothesized that CCKR blockade would improve response to immune checkpoint antibodies by promoting influx of tumor infiltrating lymphocytes (TILs) and reducing fibrosis. We examined the effects of CCKR antagonists or immune checkpoint blockade antibodies alone or in combination in murine models of PDAC. Monotherapy with CCKR blockade significantly decreased tumor size and metastases in SCID mice with orthotopic PDAC, and in C57BL/6 mice, it reduced fibrosis and induced the influx of TILs. Immune-competent mice bearing syngeneic pancreatic cancer (Panc02 and mT3-2D) that were treated with the combination of CCK receptor antagonists and immune checkpoint blockade antibodies survived significantly longer with smaller tumors. Tumor immunohistochemical staining and flow cytometry demonstrated that the tumors of mice treated with the combination regimen had a significant reduction in Foxp3+ T-regulatory cells and an increase in CD4+ and CD8+ lymphocytes. Masson's trichrome stain analysis revealed 50% less fibrosis in the tumors of mice treated with CCKR antagonist compared to controls and compared to checkpoint antibody therapy. CCKR antagonists given with immune checkpoint antibody therapy represent a novel approach for improving survival of PDAC. The mechanism by which this combination therapy improves the survival of PDAC may be related to the decreased fibrosis and immune cells of the tumor microenvironment. PMID- 29043415 TI - ? PMID- 29043416 TI - ? PMID- 29043417 TI - Community-acquired pneumonia in children - a changing spectrum of disease. AB - Pneumonia remains the leading cause of death in children outside the neonatal period, despite advances in prevention and management. Over the last 20 years, there has been a substantial decrease in the incidence of childhood pneumonia and pneumonia-associated mortality. New conjugate vaccines against Haemophilus influenzae type b and Streptococcus pneumoniae have contributed to decreases in radiologic, clinical and complicated pneumonia cases and have reduced hospitalization and mortality. The importance of co-infections with multiple pathogens and the predominance of viral-associated disease are emerging. Better access to effective preventative and management strategies is needed in low- and middle-income countries, while new strategies are needed to address the residual burden of disease once these have been implemented. PMID- 29043418 TI - Lung magnetic resonance imaging for pneumonia in children. AB - Technical factors have historically limited the role of MRI in the evaluation of pneumonia in children in routine clinical practice. As imaging technology has advanced, recent studies utilizing practical MR imaging protocols have shown MRI to be an accurate potential alternative to CT for the evaluation of pneumonia and its complications. This article provides up-to-date MR imaging techniques that can be implemented in most radiology departments to evaluate pneumonia in children. Imaging findings in pneumonia on MRI are also reviewed. In addition, the current literature describing the diagnostic performance of MRI for pneumonia is discussed. Furthermore, potential risks and limitations of MRI for the evaluation of pneumonia in children are described. PMID- 29043419 TI - Computed tomography in children with community-acquired pneumonia. AB - Diagnostic imaging plays a significant role in both the diagnosis and treatment of complications of pneumonia in children and chest radiography is the imaging modality of choice. Computed tomography (CT) on the other hand, is not currently a first-line imaging tool for children with suspected uncomplicated community acquired pneumonia and is largely reserved for when complications of pneumonia are suspected or there is difficulty in differentiating pneumonia from other pathology. This review outlines the situations where CT needs to be considered in children with pneumonia, describes the imaging features of the parenchymal and pleural complications of pneumonia, discusses how CT may have a wider role in developing countries where human immunodeficiency virus (HIV) and tuberculosis are prevalent, makes note of the role of CT scanning for identifying missed foreign body aspiration and, lastly, addresses radiation concerns. PMID- 29043420 TI - Lung ultrasound for the diagnosis of community-acquired pneumonia in children. AB - Ultrasound (US) has been proposed as an alternative first-line imaging modality to diagnose community-acquired pneumonia in children. Lung US has the potential benefits over chest radiography of being radiation free, subject to fewer regulatory requirements, relatively lower cost and with immediate bedside availability of results. However, the uptake of lung US into clinical practice has been slow and it is not yet included in clinical guidelines for community acquired pneumonia in children. The aim of this review is to give an overview of the equipment and techniques used to perform lung US in children with suspected pneumonia and the interpretation of relevant sonographic findings. We also summarise the current evidence of diagnostic accuracy and reliability of lung US compared to alternative imaging modalities in children and critically consider the strengths and limitations of lung US for use in children presenting with suspected community-acquired pneumonia. PMID- 29043421 TI - The duplicated collecting system of the urinary tract: embryology, imaging appearances and clinical considerations. AB - Duplication anomalies of the urinary collecting system are common and can be discovered and characterized with multiple imaging modalities. The embryology, imaging manifestations and clinical ramifications of duplicated ureters and renal collecting systems vary from a normal anatomical variant to urological pathology and are discussed and illustrated in this review. PMID- 29043422 TI - Guidelines for the use of chest radiographs in community-acquired pneumonia in children and adolescents. AB - National guidance from the United Kingdom and the United States on community acquired pneumonia in children states that chest radiographs are not recommended routinely in uncomplicated cases. The main reason in the ambulatory setting is that there is no evidence of a substantial impact on clinical outcomes. However clinical practice and adherence to guidance is multifactorial and includes the clinical context (developed vs. developing world), the confidence of the attending physician, the changing incidence of complications (according to the success of immunisation programs), the availability of alternative imaging (and its relationship to perceived risks of radiation) and the reliability of the interpretation of imaging. In practice, chest radiographs are performed frequently for suspected pneumonia in children. Time pressures facing clinicians at the front line, difficulties in distinguishing which children require admission, restricted bed numbers for admissions, imaging-resource limitations, perceptions regarding risk from procedures, novel imaging modalities and the probability of other causes for the child's presentation all need to be factored into a guideline. Other drivers that often weigh in, depending on the setting, include cost-effectiveness and the fear of litigation. Not all guidelines designed for the developed world can therefore be applied to the developing world, and practice guidelines require regular review in the context of new information. In addition, radiologists must improve radiographic diagnosis of pneumonia, reach consensus on the interpretive terminology that clarifies their confidence regarding the presence of pneumonia and act to replace one imaging technique with another whenever there is proof of improved accuracy or reliability. PMID- 29043424 TI - Imaging community-acquired pneumonia in children. PMID- 29043423 TI - Preliminary report from the World Health Organisation Chest Radiography in Epidemiological Studies project. AB - Childhood pneumonia is among the leading infectious causes of mortality in children younger than 5 years of age globally. Streptococcus pneumoniae (pneumococcus) is the leading infectious cause of childhood bacterial pneumonia. The diagnosis of childhood pneumonia remains a critical epidemiological task for monitoring vaccine and treatment program effectiveness. The chest radiograph remains the most readily available and common imaging modality to assess childhood pneumonia. In 1997, the World Health Organization Radiology Working Group was established to provide a consensus method for the standardized definition for the interpretation of pediatric frontal chest radiographs, for use in bacterial vaccine efficacy trials in children. The definition was not designed for use in individual patient clinical management because of its emphasis on specificity at the expense of sensitivity. These definitions and endpoint conclusions were published in 2001 and an analysis of observer variation for these conclusions using a reference library of chest radiographs was published in 2005. In response to the technical needs identified through subsequent meetings, the World Health Organization Chest Radiography in Epidemiological Studies (CRES) project was initiated and is designed to be a continuation of the World Health Organization Radiology Working Group. The aims of the World Health Organization CRES project are to clarify the definitions used in the World Health Organization defined standardized interpretation of pediatric chest radiographs in bacterial vaccine impact and pneumonia epidemiological studies, reinforce the focus on reproducible chest radiograph readings, provide training and support with World Health Organization defined standardized interpretation of chest radiographs and develop guidelines and tools for investigators and site staff to assist in obtaining high-quality chest radiographs. PMID- 29043425 TI - Arylamine N-acetyltransferase 1 in situ N-acetylation on CD3+ peripheral blood mononuclear cells correlate with NATb mRNA and NAT1 haplotype. AB - Human arylamine N-acetyltransferase 1 (NAT1) is responsible for the activation and elimination of xenobiotic compounds and carcinogens. Genetic polymorphisms in NAT1 modify both drug efficacy and toxicity. Previous studies have suggested a role for NAT1 in the development of several diseases. The aim of the present study was to evaluate NAT1 protein expression and in situ N-acetylation capacity in peripheral blood mononuclear cells (PBMC), as well as their possible associations with the expression of NAT1 transcript and NAT1 genotype. We report NAT1 protein, mRNA levels, and N-acetylation in situ activity for PBMC obtained from healthy donors. NAT1-specific protein expression was higher in CD3+ cells than other major immune cell subtypes (CD19 or CD56 cells). N-acetylation of pABA varied markedly among the PBMC of participants, but correlated very significantly with levels of NAT1 transcripts. NAT1*4 subjects showed significantly (p = 0.017) higher apparent pABA V max of 71.3 +/- 3.7 versus the NAT1*14B subjects apparent V max of 58.5 +/- 2.5 nmoles Ac-pABA/24 h/million cells. Levels of pABA N acetylation activity at each concentration of substrate evaluated also significantly correlated with NAT1 mRNA levels for all samples (p < 0.0001). This highly significant correlation was maintained for samples with the NAT1*4 (p = 0.002) and NAT1*14B haplotypes (p = 0.0106). These results provide the first documentation that NAT1-catalyzed N-acetylation in PBMC is higher in T cell than in other immune cell subtypes and that individual variation in N-acetylation capacity is dependent upon NAT1 mRNA and NAT1 haplotype. PMID- 29043426 TI - Roles of cytosolic phospholipase A2alpha in reproductive and systemic toxicities in 2,3,7,8-tetrachlorodibenzo-p-dioxin-exposed mice. AB - Exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) induces a variety of toxicities upon binding of TCDD to aryl hydrocarbon receptor. Although this binding upregulates the synthesis of prostaglandins and their related lipid mediators via cytosolic phospholipase A2alpha (cPLA2alpha), toxicological significance of this signaling pathway remains elusive. Herein, we investigated the roles of cPLA2alpha in TCDD toxicities using cPLA2alpha-null mice. In a first set of experiments, pregnant mice were orally administered TCDD at a dose of 40 MUg/kg on gestation day (GD) 12.5, and fetuses were collected on GD 18 for subsequent analyses. The number of live male fetuses of cPLA2alpha-null type was significantly less than that of wild-type in TCDD-exposed litters. TCDD-induced hydronephrosis was more severe in wild-type fetuses than in cPLA2alpha-null fetuses regardless of sex, and kidney expression levels of the inflammatory cytokines interleukin-1beta and tumor necrosis factor-alpha were increased in a cPLA2alpha-dependent manner in TCDD-exposed fetuses. In a second set of experiments, following intraperitoneal administration of TCDD at 50 MUg/kg, body weight of the male adult mice was decreased within 2 days in wild-type mice but was not changed in cPLA2alpha-null mice. In addition, TCDD-induced lipid accumulation in the livers of cPLA2alpha-null mice was at an intermediate level compared with TCDD-exposed wild-type and vehicle-control mice. In conclusion, the present results show that cPLA2alpha is involved in TCDD-induced body weight loss, lipid accumulation in the liver, fetal hydronephrosis, and cytokine gene expression, and that the molecular basis of TCDD toxicity differs considerably between target tissues and life stages. PMID- 29043427 TI - Ambient air pollution and emergency department visits for asthma in Erie County, New York 2007-2012. AB - PURPOSE: 8% of the US population has asthma. Air pollution is linked to exacerbation in susceptible individuals. The objective was to identify air pollutants that increased the risk of asthma emergency department visits during a time wherein a polluting factory was criminally convicted, changing local air pollutant levels. METHODS: An ecological time-series design used a daily count of asthma emergency visits from 2007 to 2012 as the dependent variable. Independent variables air pollutants (NO2, PM2.5 CO, and O3), controlling for meteorological conditions, were analyzed using time-series and Poisson GLM models. RESULTS: 76,651 emergency asthma visits were included with an average of 35 visits per day (SD = 9.2, range 11-80) in a stationary time series. Increased visit volume in fall and spring had no associations to the air pollutants. Associations between individual air pollutants occurred in otherwise low-volume months for asthma emergency visits. The strongest relationship was an 11.6% increase in the asthma emergency visit rate during the month of June. In monthly groupings that removed most of the autumn and spring months, O3, PM2.5, CO, and NO2 were associated with 5, 4, 2, and 2% increases in asthma emergency visits, respectively. CO was the only pollutant with a negative association with asthma emergency visits, occurring in the month of April. CONCLUSIONS: Pollutants NO2, PM2.5 CO, and O3 were associated with increased emergency asthma visits in some, but not all months of the year. Air pollution's impact on asthma emergencies may be masked by other, more influential seasonal triggers, such as infections or allergies. PMID- 29043429 TI - Reply to the Letter to the Editor by Reza Pakzad and Saeid Safiri, integration of MRI to clinical nomogram for predicting pathological stage before radical prostatectomy: bias in the prediction model. PMID- 29043428 TI - 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 - OBJECTIVES: To update the 2012 ESGAR consensus guidelines on the acquisition, interpretation and reporting of magnetic resonance imaging (MRI) for clinical staging and restaging of rectal cancer. METHODS: Fourteen abdominal imaging experts from the European Society of Gastrointestinal and Abdominal Radiology (ESGAR) participated in a consensus meeting, organised according to an adaptation of the RAND-UCLA Appropriateness Method. Two independent (non-voting) Chairs facilitated the meeting. 246 items were scored (comprising 229 items from the previous 2012 consensus and 17 additional items) and classified as 'appropriate' or 'inappropriate' (defined by >= 80 % consensus) or uncertain (defined by < 80 % consensus). RESULTS: Consensus was reached for 226 (92 %) of items. From these recommendations regarding hardware, patient preparation, imaging sequences and acquisition, criteria for MR imaging evaluation and reporting structure were constructed. The main additions to the 2012 consensus include recommendations regarding use of diffusion-weighted imaging, criteria for nodal staging and a recommended structured report template. CONCLUSIONS: These updated expert consensus recommendations should be used as clinical guidelines for primary staging and restaging of rectal cancer using MRI. KEY POINTS: * These guidelines present recommendations for staging and reporting of rectal cancer. * The guidelines were constructed through consensus amongst 14 pelvic imaging experts. * Consensus was reached by the experts for 92 % of the 246 items discussed. * Practical guidelines for nodal staging are proposed. * A structured reporting template is presented. PMID- 29043430 TI - Response to: Greenlight(r) users should move from photoselective vaporization to endoscopic enucleation in larger prostates : Benoit Peyronnet, Vincent Misrai, Tev Aho, Henry Woo, Thomas Herrmann, Fernando Gomez-Sancha. PMID- 29043431 TI - 99mTc-HDP bone scintigraphy and 18F-sodiumfluoride PET/CT in primary staging of patients with prostate cancer. AB - INTRODUCTION/AIM: Correct staging of patients with prostate cancer is important for treatment planning and prognosis. Although bone scintigraphy with 99mTc phosphonates (BS) is generally advised for staging by guidelines in high risk prostate cancer, this imaging technique is hampered by a high rate of inconclusive results and moderate accuracy. Potentially better imaging techniques for detection of bone metastases such as 18F-sodiumfluoride PET/CT (NaF PET/CT) are therefore being evaluated. In this observational cohort study we evaluate the performance and clinical impact of both BS and NaF PET/CT in primary staging of patients with prostate cancer. METHODS: The first of two cohorts consisted of patients who received a BS while the second included patients who received a NaF PET/CT for primary staging of prostate cancer. For both cohorts the number of positive, negative and equivocal findings, calculated diagnostic performance of the imaging modality in terms of sensitivity and specificity, as well as the impact on clinical management were studied. The ranges of the diagnostic performance were calculated both assuming that equivocal findings were positive and assuming that they were negative for bone metastases. For the NaF PET/CT cohort the number of patients with signs of lymph node metastases on low dose CT were also recorded, including the impact of these findings on clinical management. RESULTS: One-hundred-and-four patients underwent NaF PET/CT, whereas 122 patients underwent BS. Sensitivities of 97-100 and 84-95% and specificities of 98-100 and 72-100% were found on a patient basis for detection of bone metastases with NaF PET/CT and BS, respectively. Equivocal findings warranted further diagnostic procedures in 2% of the patients in the NaF cohort and in 16% in the BS cohort. In addition NaF PET/CT demonstrated lymph node metastases in 50% of the included patients, of which 25% showed evidence of lymph node metastases only. CONCLUSION: Our data indicate better diagnostic performance of NaF PET/CT compared to BS for detection of bone metastases in primary staging of prostate cancer patients. Less equivocal findings are encountered with NaF PET/CT. Moreover, NaF PET/CT has additional value over BS since lymph node metastases are encountered frequently. PMID- 29043433 TI - MCPIP1 inhibits coxsackievirus B3 replication by targeting viral RNA and negatively regulates virus-induced inflammation. AB - Monocyte chemotactic protein-induced protein 1(MCPIP1) is identified as an important inflammatory regulator during immune response. MCPIP1 possesses antiviral activities against several viruses, such as Japanese encephalitis. However, its role on Coxsackievirus B3 (CVB3) infection, a positive-stranded RNA virus, has not been addressed. Here, we reported that MCPIP1 was up-regulated in cardiomyocytes by CVB3 infection and in hearts and pancreas of infected mice. Then we found that overexpression of MCPIP1 inhibited CVB3 replication and knockdown of it promoted virus replication. Luciferase assay demonstrated MCPIP1 targeting non-ARE region of CVB3 3'UTR, which was dependent on its RNase, RNA binding and oligomerization abilities, but not deubiquitinase activity. We further verified that MCPIP1 negatively regulated CVB3-induced inflammatory response in macrophages. Thus, our data suggest MCPIP1 as a potent host defense against CVB3 infection and viral myocarditis. PMID- 29043432 TI - Recent advances in pharmacological, hormonal, and nutritional intervention for sarcopenia. AB - Sarcopenia, the age-related loss of skeletal muscle mass, is characterized by a deterioration of muscle quantity and quality leading to a gradual slowing of movement, a decline in strength and power, increased risk of fall-related injury, and often frailty. This review focuses on the recent advances of pharmacological, hormonal, and nutritional approaches for attenuating sarcopenia. The article is composed of the data reported in many basic and some clinical studies for mammalian muscles. Resistance training combined with amino acid-containing supplements is the gold standard to prevent sarcopenia. Supplementation with proteins (amino acids) only did not influence sarcopenic symptoms. A myostatin inhibiting strategy is the most important candidate to prevent sarcopenia in humans. Milder caloric restriction (CR, 15-25%) would also be effective for age related muscle atrophy in humans. Supplementation with ursolic acid and ghrelin is an intriguing candidate to combat sarcopenia, although further systematic and fundamental research is needed on this treatment. PMID- 29043434 TI - [Spondyloarthritides]. AB - Spondyloarthritides (SpA) are inflammatory rheumatic diseases affecting the axial skeleton, peripheral joints and entheses, and also manifest at extraskeletal sites. According to the more recently introduced nomenclature, predominant axial SpA is distinguished from predominant peripheral SpA. Axial SpA is further divided into radiographic and nonradiographic axial SpA. Genetic factors are relevant, with HLA-B27 being most important. The interleukin 23/17 pathway seems to be relevant and points towards new therapeutic targets. Inflammatory back pain is the leading symptom in axial SpA and has certain characteristics. In addition, HLA-B27 and sacroiliitis on imaging are important for diagnosis. Therapy consists of physiotherapy, nonsteroidal anti-inflammatory drugs (first line) and biologicals (second line). Conventional disease-modifying antirheumatic drugs are effective only in peripheral arthritis. PMID- 29043435 TI - How conceptual overlap and modality pairings affect task-switching and mixing costs. AB - Manipulating the pairings of stimulus and response modalities has been shown to affect how response selection processes for distinct tasks interact. For example, Stephan and Koch (Psychol Res 75(6):491-498, 2011) found smaller performance costs when participants switched between visual-manual (VM) and auditory-vocal (AV) tasks (modality compatible; MC) compared to between visual-vocal (VV) and auditory-manual (AM) tasks (modality incompatible; MI). However, in the Stephan and Koch study, there was conceptual overlap between one set of stimuli and one set of responses. For the MC pair, these stimuli and responses belonged to the same task, whereas for the MI pair, they belonged to different tasks. To examine how conceptual overlap affected switch and mixing costs, we conducted two experiments. Experiment 1a was a near replication of Stephan and Koch in which conceptual overlap was present in the MC AV task. In contrast, Experiment 1b reduced conceptual overlap within the MC AV task and increased it in the MI VV task. In Experiment 1a, we replicated Stephan and Koch's findings: larger switch costs were observed for the MI pair; in Experiment 1b, we found numerically greater switch costs in the MC condition. In Experiment 2, we reduced conceptual overlap in both tasks and found no effect of modality compatibility on switch costs. However, mixing costs were primarily driven by modality compatibility, regardless of conceptual overlap. These results highlight the different roles that conceptual overlap and modality pairings have on switch and mixing costs. PMID- 29043436 TI - Cervical dilation balloon combined with intravenous drip of oxytocin for induction of term labor: a multicenter clinical trial. AB - OBJECTIVE: This study aimed to investigate the effectiveness and safety of a method combining double-balloon catheter for cervical ripening and intravenous drip of oxytocin on the induction of term labor, providing the reference for clinical safety. METHODS: A total of 120 pregnant women with a gestation between 37+0 and 41+6 weeks, indications of labor induction, singleton pregnancy with cephalic presentation were enrolled. The patients were divided into the research group receiving cervical dilation balloon combined with intravenous drip of oxytocin and the control group receiving an intravenous drip of oxytocin at a concentration of 0.5% for labor induction (n = 60 for each). The effectiveness and safety of labor induction were evaluated by the rates of successful cervical ripening promotion and labor induction, as well as the vaginal delivery rate, induced labor time, total duration of labor, the total amount of postpartum hemorrhage within 24 h after giving birth, the incidences of postpartum hemorrhage, cervical laceration, puerperal infection and neonatal outcomes. RESULTS: There was no statistical difference in the basal demographic and clinical characteristics, including ages, gestational weeks, delivery times and Bishop scores at admission between two groups. The rate of successful cervical ripening promotion (research vs. control = 90.00% vs. 55.00%), the rate of successful induction (95.00% vs. 40.00%), the vaginal delivery rate (93.33% vs. 63.33%), the induced labor time (15.03 +/- 5.40 vs. 30.68 +/- 10.82 h), and the total duration of labor (8.12 +/- 2.65 vs. 15.01 +/- 6.06 h) were significantly different between two groups (all P < 0.05). There was no significant difference in the total amount of postpartum hemorrhage, incidences of postpartum hemorrhage, cervical laceration, puerperal infection as well as the neonatal outcomes, including neonatal weight, neonatal asphyxia and incidence of meconium aspiration syndrome between two groups. CONCLUSIONS: Compared to labor induction of oxytocin, the method combining double-balloon catheter for cervical ripening and intravenous drip of oxytocin for the induction of term labor has a higher vaginal delivery rate, shorter total duration of labor, and does not increase the incidences of postpartum hemorrhage and neonatal infection, which is a more effective and safer method for induction of term labor. PMID- 29043439 TI - [Bilateral corectopia with lenses displaced in opposite directions]. PMID- 29043437 TI - Differences in the prognosis of HPV16-positive patients with squamous cell carcinoma of head and neck according to viral load and expression of P16. AB - PURPOSE: To evaluate the impact of HPV16 load (VL-the number of virus genome copies per cell) and P16 expression on prognosis of patients with squamous cell carcinomas (SCCs) of head and neck (HN). MATERIALS AND METHODS: HPV16 presence was assessed in the group of 109 patients with HNSCCs by quantitative polymerase chain reaction (qPCR). VL (assessed by qPCR) and P16 expression (evaluated by immunohistochemistry) were analysed only in the subgroup of HPV16-positive tumours. These features were correlated with 5-year overall survival (OS) and disease-free survival (DFS). RESULTS: HPV16 infection was found in 36 tumours (33.0%). Virus-positive patients had better OS and DFS than those without infection (P = 0.041 and 0.005). Among HPV16-positive HNSCCs, 18 (50.0%) had higher VL (median value > 6764.3 copies/cell) and 25 (73.5%) P16 over expression. The significant differences in OS and DFS (P = 0.008 and 0.004) were noticed according to VL, wherein 100% DFS was found for patients with higher VL. According to P16 expression, significant difference was found only for OS (P = 0.020). In multivariate analysis, VL (P = 0.045; HR = 2.795; CI 0.121-1.060) and the level of smoking (P = 0.023, HR = 2.253; CI 1.124-4.514) were independent factors affecting DFS of HPV16-positive patients. CONCLUSION: On the basis of viral load, it is possible to differentiate prognosis of patients with HPV16 positive HNSCCs. In this subgroup, viral load has stronger prognostic potential than P16 expression. PMID- 29043438 TI - Safety and efficacy of multiple cyclocoagulation of ciliary bodies by high intensity focused ultrasound in patients with glaucoma. AB - PURPOSE: To evaluate long-term efficacy and safety of repeated ultrasonic circular cyclocoagulation (UCCC) in patients with uncontrolled glaucoma. METHODS: Forty eyes of 40 patients affected by primary or secondary uncontrolled glaucoma under maximal tolerated medical therapy were enrolled in this prospective non comparative case series study. A complete ophthalmic examination was performed before and after each month for 1 year. The UCCC treatment was repeated at 4 months if the intraocular pressure (IOP) was > 21 mmHg without major complications. Complete success was defined as a final IOP > 5 mmHg and <= 21 mmHg without hypotensive medication adjunction and no major or vision-threatening complications. RESULTS: The mean preoperative IOP was 32.5 +/- 9.9 mmHg. Four months after the first UCCC treatment the overall IOP reduction was 27.8%. Twenty two of the treated eyes did not achieve the complete success and a second treatment was performed in 20 of these eyes. Four months after the second UCCC procedure, the IOP reduction was 20.3% from preoperative values and 34.7% from baseline. Twelve of the retreated eyes needed a third treatment. Four months after the third UCCC treatment, the overall IOP reduction was 34% and 52.6% from baseline. No major complications occurred during or after any of the procedures. At 12 months, complete success was achieved in 85% (34/40) of treated eyes, with a maximum of three procedures and a significant medication reduction. CONCLUSIONS: Multiple UCCC treatments are safe, and additional treatments increase the overall procedure efficacy. PMID- 29043440 TI - [Boston keratoprosthesis: 73 eyes from Germany : An overview of experiences from two centers]. AB - BACKGROUND: The Boston Keratoprosthesis (B-KPro) is a therapeutic option for corneal replacement for visual rehabilitation in eyes with poor a prognosis for penetrating keratoplasty (high-risk eyes). Since 2009, this approach has been used in the MVZ Prof. Neuhann, Munich, and since 2013 also at the Department of Ophthalmology, University of Cologne. An overview of results from the first 73 eyes in these departments is presented. METHODS: All recipient eyes of both centers which received a B-KPro type I (BI-KPro) between November 2009 and March 2017 were included. Indications, preoperative findings, intraoperative procedures, and clinical results, as well as postoperative complication and retention rates were documented and analyzed. RESULTS: A total of 73 eyes from 68 patients (mean age 55 +/- 21.1 years, range 7 months-93 years; 26 women, 42 men) were treated with a BI-KPro. In 53 eyes (72.6%) the BI-KPro was implanted due to corneal graft failure, whereas BI-KPro was used as the primary corneal replacement in 20 eyes (27.4%). In 46 eyes (63.0%) a long-term increase in visual acuity was achieved and in 21.9% visual acuity was stabilized, while a decrease in preoperative visual acuity occurred in 15.1% of cases. During an average follow-up of 24.7 +/- 23.0 months (range 1-78 months), 1.7 +/- 2.4 re interventions (range 0-9) were required. Only 4 keratoprostheses (5.5%) could not be retained. In 3 eyes (4.2%), a change of the BI-KPro device was necessary. CONCLUSION: There is a wide range of indications for BI-KPro in eyes with a poor prognosis for conventional keratoplasty. The surgical technique is safe but with a notable postoperative complication rate, which does not seem to decrease in the medium or long term. The retention rate is excellent for eyes without stem cell deficiency. Nevertheless, the BI-KPro is the only therapeutic option for high risk eyes and leads to a gain in visual acuity in most cases. PMID- 29043441 TI - Patients' view of routine follow-up after breast cancer treatment. AB - BACKGROUND: To assess emotional distress, anxiety and stress reactions in breast cancer (BC) patients before the follow-up visits. STUDY DESIGN: Between September 2009 and December 2011 a total of 284 patients completed the BC-psychosocial assessment screening scale (PASS) and a questionnaire about their views of follow up after treatment for BC. RESULTS: Of the patients 64% reported low level of distress on the BC-PASS. The mean scores on the physical well-being scale was 5.3, the satisfaction/sense of coherence scale 7.4, and the emotional distress scale 8.1. Women rated mammography as the most important component (71%), followed by breast ultrasound (63%) and the consultation with the physician (60%). Of the patients 94% were satisfied with the current follow-up regimen. CONCLUSIONS: In this series BC patients were satisfied with their aftercare. Mammography was thought to be the most important component of aftercare. Patient reported outcomes should be taken into account when planning follow-up. PMID- 29043442 TI - Sex and gender matters : A sex-specific analysis of original articles published in the Wiener klinische Wochenschrift between 2013 and 2015. AB - BACKGROUND: The variables sex and gender are significantly related to health and disease of women and men. Aiming at quality research, biomedical publications need to account for the key variables sex and gender. METHODS: All original articles published in the Wiener klinische Wochenschrift between 2013 and 2015 were extracted into a database. As a result, the 195 published articles were selected for review led by the Sex and Gender Equity in Research Guidelines (SAGER) by the European Association of Science Editors (EASE). The slightest indications of mentioning sex and/or gender were assessed by two reviewers independently from one another. RESULTS: Of the 195 publications 4 specified sex and/or gender in the title, and 62 in the abstract. None of the authors reported whether the variables sex and/or gender may have relevance and were taken into account in the design of the study. Of the 195 publications 48 mentioned the potential implications of sex and/or gender on the study results. CONCLUSION: In the time span studied most of the selected articles of this journal did not account for the variables sex and/or gender systematically or adequately. For future research the existing guidelines can help authors and editors to overcome gender bias due to inadequate methods. Applying sex and gender-sensitive methods to biomedical and health research is necessary for high quality and as a precondition for results which are generalizable and applicable to both women and men. PMID- 29043443 TI - Reply. PMID- 29043444 TI - Combined treatment with alendronate and Drynaria rhizome extracts : Effect on fracture healing in osteoporotic rats. AB - The effects of both alendronate (ALN) and Drynaria rhizome extracts (DRE) alone could promote bone healing in osteoporotic fractures but there are no reports about the combined use of ALN and DRE for promotion of bone healing of fractures in osteoporotic settings. This study investigated the effects of ALN plus DRE on fractures in osteopenic rats. Osteopenic rats underwent unilateral transverse osteotomy on the femur fixed by a sterilized Kirschner wire 2 weeks after intragastric administration of retinoic acid (80 mg/kg body weight/day). Subsequently, the animals were randomly divided into four groups: control, ALN, DRE and ALN + DRE. All rats from groups ALN, DRE and ALN + DRE received ALN (40 mg/kg, weekly), DRE (90 mg/kg/day), or both for 2, 4 and 6 weeks. The results of our study indicated that all treatment promoted fracture healing and callus formation compared to controls but ALN + DRE treatment showed significantly stronger effects than ALN or DRE alone in histological, X-ray and biomechanical tests. These results seem to indicate that combined treatment with ALN and DRE has an additive effect on fracture healing and callus formation in osteoporotic rats. PMID- 29043446 TI - ? PMID- 29043445 TI - The role of intermediate filaments in maintaining integrity and function of intestinal epithelial cells after massive bowel resection in a rat. AB - PURPOSE: Intermediate filaments (IFs) are a part of the cytoskeleton that extend throughout the cytoplasm of all cells and function in the maintenance of cell shape by bearing tension and serving as structural components of the nuclear lamina. In normal intestine, IFs provide a tissue-specific three-dimensional scaffolding with unique context-dependent organizational features. The purpose of this study was to evaluate the role of IFs during intestinal adaptation in a rat model of short bowel syndrome (SBS). MATERIALS AND METHODS: Male rats were divided into two groups: Sham rats underwent bowel transection and SBS rats underwent a 75% bowel resection. Parameters of intestinal adaptation, enterocyte proliferation and apoptosis were determined 2 weeks after operation. Illumina's Digital Gene Expression (DGE) analysis was used to determine the cytoskeleton related gene expression profiling. IF-related genes and protein expression were determined using real-time PCR, Western blotting and immunohistochemistry. RESULTS: Massive small bowel resection resulted in a significant increase in enterocyte proliferation and concomitant increase in cell apoptosis. From the total number of 20,000 probes, 16 cytoskeleton-related genes were investigated. Between these genes, only myosin and tubulin levels were upregulated in SBS compared to sham animals. Between IF-related genes, desmin, vimentin and lamin levels were down-regulated and keratin and neurofilament remain unchanged. The levels of TGF-beta, vimentin and desmin gene and protein were down-regulated in resected rats (vs sham animals). CONCLUSIONS: Two weeks following massive bowel resection in rats, the accelerated cell turnover was accompanied by a stimulated microfilaments and microtubules, and by inhibited intermediate filaments. Resistance to cell compression rather that maintenance of cell-shape by bearing tension are responsible for contraction, motility and postmitotic cell separation in a late stage of intestinal adaptation. PMID- 29043447 TI - [Lean management in the pathology laboratory]. PMID- 29043448 TI - [Retinoblastoma and retinocytoma (retinoma)]. AB - Retinoblastomas are extremely rare withabout half of the cases being hereditary eye neoplasms in young children. They show highly proliferative, CRX-positive undifferentiated tumour cells (occasionally forming rosettes). Staging is performed according to the pTNM classification and the International Retinoblastoma Staging System (IRSS). The diagnostic basis for systemic administration of chemotherapy and/or radiation is postlaminar optic nerve invasion, massive choroidal tumour infiltration, scleral invasion or even extraocular invasion. In cases that are difficult to diagnose, immunohistochemical stains (CRX and Ki67) may be very helpful. Retinocytomas (retinomas) completely lack undifferentiated tumour cell areas, show an exclusive photoreceptor differentiation and an exceptionally low Ki67 index. PMID- 29043449 TI - Influence of culture conditions towards optimal carotenoid production by Gordonia alkanivorans strain 1B. AB - With the increasing awareness on the toxicity of several synthetic dyes, demand for pigments from natural sources, such as microbial carotenoids, has gained interest as a promising safe alternative colour additive. In this study, a surface response methodology based on the Doehlert distribution for two factors [% of glucose in a mixture of glucose + fructose (10 g/L total sugars), and sulfate concentration] was used towards the optimal carotenoids production by Gordonia alkanivorans strain 1B in the presence of light (400 lx). Time influence on pigment production by this bacterium was also evaluated, as well as the cell viability profile during longer incubation periods at optimal conditions. Indeed, the highest carotenoid production (2596-3100 MUg/gDCW) was obtained when strain 1B was cultivated in the optimal conditions: glucose 10 g/L and sulfate >= 22 mg/L, in the presence of light for 19 days at 30 degrees C, 150 rpm. Flow cytometry showed that the highest production was somehow related with the cellular stress. These results highlight the great potential of strain 1B as a new hyperpigment producer to be exploited towards several applications. PMID- 29043450 TI - Immobilization of lipase on carboxylic acid-modified silica nanoparticles for olive oil glycerolysis. AB - In this study, the silica nanoparticles surface was modified by carboxylic acid with different number of alkyl chain and two different lipases were immobilized on it to increase the glycerolysis activity of the immobilized lipases in organic solvent system. Silica nanoparticles of about 15 nm diameter were grafted with various carboxylic acid modifiers from valeric, caprylic, capric, lauric, stearic and oleic acids. Lipases from Candida antarctica and Candida rugosa were immobilized onto the carboxylic acid, modified silica nanoparticles and used in the mono and diglycerides production through glycerolysis with or without organic solvents. When lipases immobilized on stearic acid-modified silica nanoparticles, both lipases gave higher activity compared to their corresponding free lipases. Immobilized C. rugosa were stable and reused for 11 cycles without loss in activity. The kinetic parameters, K m and V max of free and immobilized lipases were found using Lineweaver-Burk model. Results indicated that the immobilized lipase had a lower K m and V max when compared with the free lipase. PMID- 29043451 TI - Weather and eared grebe winter migration near the Great Salt Lake, Utah. AB - This study provides insight from the use of weather radar observations to understand the characteristics of the eared grebe migration near the Great Salt Lake (GSL) and provides unique information on weather conditions connected to these migration events. Doppler weather radar measurements from the Salt Lake City, Utah WSR-88D radar site (KMTX), along with meteorological surface and rawinsonde data, were used to identify and examine 281 eared grebe migration events across 15 winters from 1997/1998 through 2011/2012. An average of about 19 migration events occurred each winter with considerable interannual variability, as well as large variance in the spatial area and number of birds departing the GSL during each event. The migration events typically occurred during clear sky conditions in the presence of surface high pressure and colder than average surface temperatures. Migration events began 55 min after sunset, on average across the winter seasons, and in one case we demonstrate that an extended, nonstop flight was initiated of the departing eared grebes to northern Mexico. Eared grebes leaving the GSL largely flew above the freezing level with a mean northerly tailwind at flight altitude of 3.1 m s-1 and a westerly, cross-flight wind of 5.0 m s-1 while having an average flight speed at cruising altitude of 16.9 m s-1, or 61 km h-1. In addition to determining the variability of meteorological conditions during migration events across the 15 winters, atmospheric conditions during the largest migration event observed are presented and discussed. PMID- 29043452 TI - Spatiotemporal variability of drinking water quality and the associated health risks in southwestern towns of Ethiopia. AB - The failure to provide safe drinking water services to all people is the greatest development setback of the twenty-first century including Ethiopia. Potential pollutants from various sources are deteriorating drinking water quality in different seasons, and associated health risks were not clearly known. We determined seasonal and spatial variations of urban drinking water characteristics and associated health risks in Agaro, Jimma, and Metu towns, Southwest Ethiopia. Seventy-two samples were collected during dry and rainy seasons of 2014 and 2015. The majority (87.4%) of physicochemical parameters was found within the recommended limits. However, free residual chlorine in Jimma and Agaro town water sources was lower than the recommended limit and negatively correlated with total and fecal coliform counts (r = - 0.585 and - 0.638). Statistically significant differences were observed at pH, turbidity, and total coliform between dry and rainy seasons (p < 0.05). A Kruskal-Wallis H test revealed a statistically significant difference in electrical conductivity, total hardness, fluoride, iron, and fecal coliform across the study towns (p < 0.05). The Agaro town water source was the highest in fluoride concentration (3.15 mg/l). The daily exposure level for high fluoride concentration in Agaro town was estimated between 0.19 and 0.41 mg/kg day, and the average cumulative hazard index of fluoride was > 3.13 for all age groups. Water quality variations were observed in all conventional water treatment systems in the rainy season, and further research should focus on its optimization to safeguard the public. PMID- 29043453 TI - Serum carbohydrate antigen 125 is a significant prognostic marker in patients with unresectable advanced or recurrent gastric cancer. AB - PURPOSE: We evaluated the diagnostic and prognostic value of three tumor markers: carcino-embryonic antigen (CEA), carbohydrate antigen 19-9 (CA19-9), and carbohydrate antigen 125 (CA125), in the pretreatment serum of patients with unresectable advanced or recurrent gastric cancer. METHODS: The subjects of this retrospective analysis were 245 patients with unresectable advanced or recurrent gastric cancer diagnosed at Kochi Medical School between 2007 and 2015. We ascertained the sensitivity of CEA, CA19-9, and CA125 to identify a certain survival time and then evaluated the relative prognosis of the patients. RESULTS: The overall positive rates for each tumor marker in the study group were as follows: 57.6% (141/245) for CEA, 38.4% (94/245) for CA19-9, and 34.3% (84/245) for CA125; the sensitivity of these three biomarkers in combination was 73.1% (179/245). The median survival time of the CA125-positive patients was 4.5 months, which was significantly shorter than that of a normal range group (18.3 months, P < 0.001). Multivariate survival analysis identified that high CA125 was independently associated with a worse prognosis (HR 3.941; 95% CI 2.544-6.106; P < 0.001). CONCLUSIONS: Pretreatment serum CA125 is a useful prognostic biomarker in patients with unresectable advanced or recurrent gastric cancer. Evaluating a panel of serum tumor biomarkers is a useful diagnostic tool as elevated values might be associated with poor survival. PMID- 29043454 TI - A fluorescent oxaliplatin derivative for investigation of oxaliplatin resistance using imaging techniques. AB - Oxaliplatin is the backbone of chemotherapy for advanced colorectal cancer and undergoes clinical trials for treatment of other tumour entities. However, acquired resistance is a major hurdle. Confocal microscopy is a useful tool to get an insight into the mechanisms of resistance but it requires fluorescent compounds. This work describes the synthesis of the novel oxaliplatin derivative (CFDA-oxPt) featuring 5(6)-carboxyfluorescein diacetate and evaluation of its applicability for the investigation of oxaliplatin resistance using imaging techniques. CFDA-oxPt was somewhat less cytotoxic than oxaliplatin in sensitive colorectal cancer cells, with EC50 values of 26 and 5.8 uM, respectively. Nevertheless, the potency of the novel complex was significantly decreased to the EC50 of 711.2 uM in oxaliplatin-resistant cells, as was the case for oxaliplatin (EC50 = 81 uM). After incubation, both nuclear and cytosolic localisation was observed. Over time CFDA-oxPt concentrated near the cell membrane and in the vesicular structures, in contrast to the platinum-free label, which was rapidly excreted. These findings suggest that CFDA-oxPt can be used to study oxaliplatin resistance and open the route to new fluorophore-tethered oxaliplatin derivatives. PMID- 29043455 TI - Correction to:The innervation of extensor hallucis longus muscle: an anatomical study for selective neurotomy. AB - The original version of this article unfortunately contained mistakes. The names of all authors are inadvertently inverted and are now corrected in the authorgroup of this article. PMID- 29043456 TI - Correction to:"Careful" reprogramming of baclofen intrathecal programmable synchromed infusion pumps at their replacement in a series of 156 patients. AB - The original version of this article unfortunately contained mistakes. The names of all authors are inadvertently inverted and are now corrected in the authorgroup of this article. PMID- 29043457 TI - A 15-year analysis of the publications in the field of osteoporosis. PMID- 29043458 TI - Determination of acidic non-steroidal anti-inflammatory drugs in aquatic samples by liquid chromatography-triple quadrupole mass spectrometry combined with carbon nanotubes-based solid-phase extraction. AB - A solid-phase extraction (SPE) method based on multi-walled carbon nanotubes (CNT) was developed for the determination of 12 acidic non-steroidal anti inflammatory drugs (NSAIDs) in surface waters and tap water. Pristine and functionalised CNTs were evaluated as sorbent materials. Batch experiments were used to optimise sorption and desorption conditions (sorbent type and amount, adsorption time, pH). The adsorption equilibrium was reached after 8 to 48 h duration, which increased with the pH of solution. Non-agglomerated pristine CNTs (20 mg) showed the most optimal adsorption (94 to 100%) for all of the analytes after a 30-min contact period in acidified water solutions (100 mL). The compounds retained at those conditions were recovered by 40 to 95% by using 5% ammonium hydroxide in methanol as the desorbing solution at ambient conditions. A comprehensive liquid chromatography coupled to triple quadrupole mass spectrometry (LC-QqQ-MS/MS) was used for the analysis of real water samples. The method showed sufficient recovery (65-125%) and good precision (2-14% relative standard deviation (RSD)). The limits of detection and quantification ranged between 0.01 and 1.3 ng L-1 and 0.04 and 3.9 ng L-1. Only diclofenac and ibuprofen were found in the analysed surface water samples from Latvia (n = 10) and Norway (n = 14). Diclofenac was found at 1.7-8.4 ng L-1 concentration in two samples of surface waters, whereas the concentrations of ibuprofen ranged between 1.0 and 9.2 ng L-1 in seven samples collected in Norway and 3.9-17 ng L-1 in three samples from Latvia. PMID- 29043459 TI - Mobility of Pb, Zn, Cu and As in disturbed forest soils affected by acid rain. AB - Early efforts at remediation of contaminated soils involve overturn or removal of the uppermost soil horizons. We find that such disruption is counterproductive, as it actually increases the mobility of the heavy metals involved. In our study, we sought to replicate in a controlled manner this commonly used remediation strategy and measure Pb, Zn, Cu and As concentrations in all soil horizons-both prior to and 1 year after disruption by trenching. BCR analyses (sequential leaching) indicate that Pb is affected to the greatest degree and is most highly mobile; however, Zn and As remain insoluble, thus partially ameliorating the detrimental effect. Differences in vegetation cover (i.e. spruce vs. beech forest) have little influence on overall element mobility patterns. The Krusne hory (Ore Mts., Czech Republic) study area is one of the more heavily contaminated areas in Central Europe, and thus the results reported here are applicable to areas affected by brown-coal-burning power plants. PMID- 29043460 TI - Longitudinal assessment of the impact of adapted physical activity on upper limb disability and quality of life in breast cancer survivors from an Italian cohort. AB - PURPOSE: The purpose of this study was to evaluate the effectiveness of a specific adapted physical activity (APA) protocol on upper limb disability and quality of life in breast cancer survivors and to assess longitudinally the possible role of APA on long-term benefits. METHODS: Breast cancer survivors from an Italian cohort were assessed by fitness tests (shoulder-arm mobility, range of motion, and back flexibility) before and after 8-week APA. Quality of life and back and surgical shoulder pain intensity were evaluated by Short Form-12 and numerical rating scale questionnaires, respectively. At 1.5-year post-APA follow up, survivors were evaluated as at baseline/post-APA to assess long-term effects. RESULTS: A statistically significant improvement in shoulder-arm mobility, pain perception, and quality of life was observed in breast cancer survivors after APA intervention. Longitudinal analyses indicated an overall decrease in the achieved benefits at 1.5-year post-APA. CONCLUSIONS: The survivorship phase of breast cancer requires a multidisciplinary collaboration involving either the cancer care medical team or APA professionals to manage psychophysical outcomes. A specific APA protocol may represent an effective countermeasure to reduce post treatment upper limb disability and improve the quality of life in breast cancer survivors. Participation in structured APA protocols should be maintained over time to preserve the achieved benefits. PMID- 29043462 TI - An experimental model to measure the ability of headphones with active noise control to reduce patient's exposure to noise in an intensive care unit. AB - BACKGROUND: Defining the association between excessive noise in intensive care units, sleep disturbance and morbidity, including delirium, is confounded by the difficulty of implementing successful strategies to reduce patient's exposure to noise. Active noise control devices may prove to be useful adjuncts but there is currently little to quantify their ability to reduce noise in this complex environment. METHODS: Sound meters were embedded in the auditory meatus of three polystyrene model heads with no headphones (control), with headphones alone and with headphones using active noise control and placed in patient bays in a cardiac ICU. Ten days of recording sound levels at a frequency of 1 Hz were performed, and the noise levels in each group were compared using repeated measures MANOVA and subsequent pairwise testing. RESULTS: Multivariate testing demonstrated that there is a significant difference in the mean noise exposure levels between the three groups (p < 0.001). Subsequent pairwise testing between the three groups shows that the reduction in noise is greatest with headphones and active noise control. The mean reduction in noise exposure between the control and this group over 24 h is 6.8 (0.66) dB. The use of active noise control was also associated with a reduction in the exposure to high-intensity sound events over the course of the day. CONCLUSIONS: The use of active noise cancellation, as delivered by noise-cancelling headphones, is associated with a significant reduction in noise exposure in our model of noise exposure in a cardiac ICU. This is the first study to look at the potential effectiveness of active noise control in adult patients in an intensive care environment and shows that active noise control is a candidate technology to reduce noise exposure levels the patients experience during stays on intensive care. PMID- 29043461 TI - Effect of anti-angiogenesis induced by chemotherapeutic monotherapy, chemotherapeutic/bisphosphonate combination therapy and anti-VEGFA mAb therapy on tooth extraction socket healing in mice. AB - Osteonecrosis of the jaw (ONJ), which is a rare but severe adverse effect, mainly occurs in oncology patients receiving chemotherapeutic agents and bisphosphonates. However, the combined impact of chemotherapy and bisphosphonates on wound healing after tooth extraction remains unknown. The aim of this study was to determine the precise etiology of ONJ induced by chemotherapy and bisphosphonate combination therapy. Mice received zoledronate (ZA) monotherapy, cyclophosphamide (CY) monotherapy or CY/ZA combination therapy. The maxillary first molars were extracted 3 weeks after the initiation of drug treatment. Moreover, antivascular endothelial growth factor A (VEGFA) monoclonal antibody (mAb) was administered once every 2 days just after tooth extraction for 2 weeks. Soft and hard tissue wound healing was evaluated 2 and 4 weeks post-extraction using histomorphometry, microcomputed tomography and immunohistochemistry. ZA monotherapy did not induce impaired oral wound healing and ONJ-like lesions 2 and 4 weeks post-extraction, respectively. Tooth extraction socket healing worsened with severe anti-angiogenesis by CY monotherapy and CY/ZA combination therapy 2 weeks post-extraction. However, CY monotherapy rarely induced ONJ-like lesions with severe angiogenesis suppression, whereas CY/ZA combination therapy frequently induced ONJ-like lesions with severe angiogenesis inhibition 4 weeks post-extraction. Interestingly, anti-VEGFA mAb therapy delayed osseous wound healing with normal soft tissue wound healing of tooth extraction sockets, although this therapy significantly suppressed blood vessel formation. Our findings suggest that anti-angiogenesis alone is not the main cause of ONJ-like lesions induced by CY/ZA combination therapy. The combination of suppressed osteoclasts and anti-angiogenesis, in addition to other risk factors such as chemotherapy, may contribute to the development of ONJ. PMID- 29043463 TI - Serum selenium levels predict survival after breast cancer. AB - BACKGROUND: Studies have reported an inverse relationship between serum selenium levels and cancer incidence, but the impact of low serum selenium status on survival after a diagnosis of breast cancer has not been established. METHODS: We obtained a blood sample from 546 women diagnosed with a first primary invasive breast cancer between 2008 and 2015 in the region of Szczecin, Poland. Blood was collected after diagnosis, but prior to treatment. Serum selenium was quantified by mass spectroscopy and each patient was assigned to one of four categories (quartiles) based on the distribution in the entire cohort. Patients were followed from diagnosis to death over a mean follow-up of 3.8 years. Vital status was obtained by linkage to the Polish National Death Registry. RESULTS: The 5 year overall actuarial survival was 68.1% for women in the lowest (< 64.4 ug/L) and 82.5% for those in the highest (> 81.0 ug/L) quartile of serum selenium. In an adjusted analysis, the hazard ratio for death was 2.49 (95%CI 1.53-4.04; P = 0.0002) for patients in the lowest quartile of serum selenium, compared to those in all other quartiles. The effect of low selenium on breast cancer-specific mortality was stronger for women who were past smokers (HR 6.03; 95%CI 1.96-18.6; P = 0.0002). CONCLUSIONS: This study suggests that a selenium level in excess of 64.4 ug//L might be beneficial for women undergoing treatment for breast cancer and that selenium supplementation to achieve this level may favorably impact the outcome. Further studies are needed to confirm this association and to evaluate the impact of selenium supplementation on breast cancer survival among women with low post-diagnostic selenium levels. PMID- 29043464 TI - The importance of early detection of calcifications associated with breast cancer in screening. AB - PURPOSE: The aim of this study was to assess how often women with undetected calcifications in prior screening mammograms are subsequently diagnosed with invasive cancer. METHODS: From a screening cohort of 63,895 women, exams were collected from 59,690 women without any abnormalities, 744 women with a screen detected cancer and a prior negative exam, 781 women with a false positive exam based on calcifications, and 413 women with an interval cancer. A radiologist identified cancer-related calcifications, selected by a computer-aided detection system, on mammograms taken prior to screen-detected or interval cancer diagnoses. Using this ground truth and the pathology reports, the sensitivity for calcification detection and the proportion of lesions with visible calcifications that developed into invasive cancer were determined. RESULTS: The screening sensitivity for calcifications was 45.5%, at a specificity of 99.5%. A total of 68.4% (n = 177) of cancer-related calcifications that could have been detected earlier were associated with invasive cancer when diagnosed. CONCLUSIONS: Screening sensitivity for detection of malignant calcifications is low. Improving the detection of these early signs of cancer is important, because the majority of lesions with detectable calcifications that are not recalled immediately but detected as interval cancer or in the next screening round are invasive at the time of diagnosis. PMID- 29043466 TI - Innovation at the Intersection of Alcohol and HIV Research. AB - Working in an interdisciplinary manner at the crossroads of alcohol and HIV research is a challenge. This paper presents six novel approaches that could be applied to activities at the intersection of alcohol and HIV. These approaches are (i) address the fact that the availability of new technology is unevenly distributed around the world, (ii) use technology to move beyond both paper and digital surveys, (iii) introduce a focus on advocacy and partnerships with large technology companies, (iv) harness technological innovation to utilise digital counselling, (v) explore the use of virtual reality in both research and delivering interventions, and (vi) consider alternative funding models to those currently in existence to improve efficiencies and innovations. Aiming to understand the interplay of alcohol and HIV will require creativity. The six approaches outlines in this paper provide possible directions from which new approaches may emerge. PMID- 29043465 TI - Comparison of strain imaging techniques in CRT candidates: CMR tagging, CMR feature tracking and speckle tracking echocardiography. AB - Parameters using myocardial strain analysis may predict response to cardiac resynchronization therapy (CRT). As the agreement between currently available strain imaging modalities is unknown, three different modalities were compared. Twenty-seven CRT-candidates, prospectively included in the MARC study, underwent cardiac magnetic resonance (CMR) imaging and echocardiographic examination. Left ventricular (LV) circumferential strain was analysed with CMR tagging (CMR-TAG), CMR feature tracking (CMR-FT), and speckle tracking echocardiography (STE). Basic strain values and parameters of dyssynchrony and discoordination obtained with CMR-FT and STE were compared to CMR-TAG. Agreement of CMR-FT and CMR-TAG was overall fair, while agreement between STE and CMR-TAG was often poor. For both comparisons, agreement on discoordination parameters was highest, followed by dyssynchrony and basic strain parameters. For discoordination parameters, agreement on systolic stretch index was highest, with fair intra-class correlation coefficients (ICC) (CMR-FT: 0.58, STE: 0.55). ICC of septal systolic rebound stretch (SRSsept) was poor (CMR-FT: 0.41, STE: 0.30). Internal stretch factor of septal and lateral wall (ISFsep-lat) showed fair ICC values (CMR-FT: 0.53, STE: 0.46), while the ICC of the total LV (ISFLV) was fair for CMR-FT (0.55) and poor for STE (ICC: 0.32). The CURE index had a fair ICC for both comparisons (CMR-FT: 0.49, STE 0.41). Although comparison of STE to CMR-TAG was limited by methodological differences, agreement between CMR-FT and CMR-TAG was overall higher compared to STE and CMR-TAG. CMR-FT is a potential clinical alternative for CMR-TAG and STE, especially in the detection of discoordination in CRT-candidates. PMID- 29043467 TI - Do Subjective Alcohol Screening Tools Correlate with Biomarkers Among High-Risk Transgender Women and Men Who Have Sex with Men in Lima, Peru? AB - Alcohol abuse can influence sexual risk behavior; however, its measurement is not straightforward. This study compared self-reported alcohol use, via the AUDIT and CAGE, with levels of phosphatidylethanol (Peth), a phospholipid biomarker that forms with chronic, heavy drinking, among high-risk MSM and TW in Lima, Peru. Chi square, Fisher's exact, Wilcoxon ranksum tests compared the instruments. Receiver operating curves determined sensitivity and specificity of the self-reported measures. Among 69 MSM and 17 TW, PEth was positive for 86% (95% CI 77-93%) of participants, while 67% reported binge-drinking in the last 2 weeks. The AUDIT classified 25% as hazardous drinkers while CAGE identified 6% as problem drinkers. Self-reported binge drinking was more sensitive than the AUDIT for PEth positivity (71% vs. 27%, p = 0.022). Among high-risk MSM and TW in Lima, validated, self-report measures of alcohol abuse underestimated biological measures. Further research correlating bio-markers and self-reported alcohol abuse measures is needed. PMID- 29043469 TI - E3 ubiquitin ligases in cancer and implications for therapies. AB - E3 ligases are a class of enzymes that can transfer ubiquitin to substrates for their degradation, which are of importance in cellular homeostasis. Since many oncogenic or tumor-suppressive proteins are reported to be regulated by the ubiquitin-proteasome system (UPS), E3 ligases, which function as substrate interacting modules, have been attracting more and more attention as promising anticancer drug targets due to their pivotal role in conferring substrate specificity. Generally, based on their molecular structure and functional mechanism, E3 ligases can be divided into three major types: homologous to E6 associated protein C-terminus (HECT), really interesting new gene (RING), and RING-in-between-RING (RBR) E3 ligases. Based on the significance of their functions, more bioactive compounds targeting E3 ligases should be developed in the future. In this review, we discuss the important roles of E3 ligases involved in cancer as well as available bioactive compounds targeting various E3 ligases for potential anticancer activity. PMID- 29043468 TI - Cognitive and behavioral disorders in Parkinson's disease: an update. I: cognitive impairments. AB - Parkinson's disease (PD) is a progressive neurodegenerative disease characterized by motor symptoms such as rigidity, rest tremor, and bradykinesia. However, a growing body of evidence demonstrated that PD encompasses several non-motor disturbances as well, such as cognitive impairment. Cognitive defects can be present since early stages of the disease but tend to dominate the clinical picture as the disease progresses. Around 40% of patients with PD present with cognitive impairments in several cognitive domains including attention, working memory and executive functions, language, visuospatial skills, and episodic memory; in later stages of the disease, cognitive defects and associated behavioral disorders concur to determine clinically relevant PD-associated dementia. Part of these defects is ascribed to a dopamine-dependent dysfunction of fronto-striatal pathways, but there is a considerable heterogeneity in the cognitive impairments as well as a suggestion of the role of other neurotransmitter systems, such as the cholinergic one, mainly responsible for Parkinson-dementia syndrome. In this paper, we review recent literature with particular attention to the last 5 years on the main cognitive deficits described in PD patients as well as on the hypothesized neuro-functional substrate of such impairments. Finally, we provide some suggestions on how to test cognitive functions in PD appropriately. PMID- 29043470 TI - Comprehensive analysis of NMR data using advanced line shape fitting. AB - NMR spectroscopy is uniquely suited for atomic resolution studies of biomolecules such as proteins, nucleic acids and metabolites, since detailed information on structure and dynamics are encoded in positions and line shapes of peaks in NMR spectra. Unfortunately, accurate determination of these parameters is often complicated and time consuming, in part due to the need for different software at the various analysis steps and for validating the results. Here, we present an integrated, cross-platform and open-source software that is significantly more versatile than the typical line shape fitting application. The software is a completely redesigned version of PINT ( https://pint-nmr.github.io/PINT/ ). It features a graphical user interface and includes functionality for peak picking, editing of peak lists and line shape fitting. In addition, the obtained peak intensities can be used directly to extract, for instance, relaxation rates, heteronuclear NOE values and exchange parameters. In contrast to most available software the entire process from spectral visualization to preparation of publication-ready figures is done solely using PINT and often within minutes, thereby, increasing productivity for users of all experience levels. Unique to the software are also the outstanding tools for evaluating the quality of the fitting results and extensive, but easy-to-use, customization of the fitting protocol and graphical output. In this communication, we describe the features of the new version of PINT and benchmark its performance. PMID- 29043471 TI - Nanostructured Lipid Carrier Co-loaded with Doxorubicin and Docosahexaenoic Acid as a Theranostic Agent: Evaluation of Biodistribution and Antitumor Activity in Experimental Model. AB - PURPOSE: Nanotheranostic platforms, i.e., the combination of both therapeutic and diagnostic agents on a single platform, are emerging as an interesting tool for the personalized cancer medicine. Therefore, the aim of this work was to evaluate the in vivo properties of a Tc-99m-labeled nanostructured lipid carrier (NLC) formulation, co-loaded with doxorubicin (DOX) and docosahexaenoic acid (DHA), for theranostic applications. PROCEDURES: NLC-DHA-DOX were prepared busing the hot melting homogenization method using an emulsification-ultrasound and were radiolabeled with Tc-99m. Biodistribution studies, scintigraphic images, and antitumor activity were performed in 4T1 tumor-bearing mice. RESULTS: NCL was successfully radiolabeled with Tc-99m. Blood clearance showed a relatively long half-life, with blood levels decaying in a biphasic manner (T1/2 alpha = 38.7 min; T1/2 beta = 516.5 min). The biodistribution profile and scintigraphic images showed higher tumor uptake compared to contralateral muscle in all time-points investigated. Antitumor activity studies showed a substantial tumor growth inhibition ratio for NLC-DHA-DOX formulation. In addition, the formulation showed more favorable toxicity profiles when compared to equivalent doses of free administered drugs, being able to reduce heart and liver damage. CONCLUSIONS: Therefore, NLC-DHA-DOX formulation demonstrated feasibility in breast cancer treatment and diagnosis/monitoring, leading to a new possibility of a theranostic platform. PMID- 29043472 TI - Biotoxicity of Cry1Ab protein on wolf spider Pardosa pseudoannulata. AB - In this research, we carried out a tritrophic bioassay to assess the potential effect of Cry1Ab-expressing rice on the foraging behavior of the common wolf spider Pardosa pseudoannulata and its underlying molecular mechanism. Results indicated the Bt-containing spiders expressed a higher foraging range when compared to controls. The high throughput de novo transcriptome sequencing was further carried out for central nervous system (CNS) of P. pseudoannulata with and without Cry1Ab intake. We obtained 120, 985 unigenes with a mean length of 529.73 bp. Functional analysis of differentially expressed genes (DEGs) showed the expression levels of genes related to energy metabolism were changed in response to Cry1Ab, which may contribute to a more active foraging behavior. In addition, some DEGs also have a function related to metal ion binding, implying a potential influence on metal ions-dependent reactions. This may be associated with Cry1Ab resistance mechanism in the spider. PMID- 29043473 TI - Investigating long-term effect of nanoparticles on growth of Raphanus sativus plants: a trans-generational study. AB - In the past decade, there has been an unprecedented growth in the application of nanoparticles (NPs) worldwide. Even though the acute toxicity of CuO and ZnO NPs to plants has been investigated in past, the trans-generational effects of these NPs in the environment are still unknown. In this study, we investigated whether the treatment of radish plants with CuO and ZnO NPs as single compound and as a binary mixture (10, 100 and 1000 mg/Kg soil) through their lifecycle would affect the seed quality and the development of second-generation seedlings or not. Results showed reduced root length, shoot length and biomass in F1 seedlings of NPs treated plants. The treated F1 seeds had smaller seed weight with accumulated Cu and Zn. The effect of toxic interaction between CuO and ZnO on plant growth was antagonistic in nature. Evaluation of the trans-generational impact is important to understand the long-term effect of NPs on the environment. PMID- 29043474 TI - Genetic diversity of Afrikaner cattle in southern Africa. AB - The Afrikaner is an indigenous South African breed of "Sanga" type beef cattle along with breeds such as the Drakensberger and Nguni. Six composite breeds have been developed from crosses with the Afrikaner. Additionally, Afrikaner has been the base from which exotic breeds were established in South Africa through backcrossing. The study examined genetic diversity of Afrikaner cattle by genotyping 1257 animals from 27 herds in different geographic areas of South Africa and Namibia using 11 microsatellite markers. Multiple-locus assignment, performed using the Bayesian clustering algorithm of STRUCTURE, revealed three underlying genotypic groups. These groups were not geographically localized. Across herds and markers, the proportion of unbiased heterozygosity ranged from 0.49 to 0.72 averaging 0.57; mean number of alleles per locus ranged from 3.18 to 7.09, averaging 4.81; and allelic richness ranged from 2.35 to 3.38, averaging 2.67. It is concluded that a low inbreeding level of 2.7% and a moderate to high degree of variation still persists within the Afrikaner cattle breed, despite the recent decline in numbers of animals. PMID- 29043475 TI - Calculation of indirect costs of associated with postoperative caregiver absences after pediatric tonsil surgery. PMID- 29043476 TI - Drug-Induced Sedation Endoscopy (DISE) DATA FUSION system: clinical feasibility study. AB - Drug-induced sleep endoscopy (DISE) is a diagnostic technique for 3D dynamic anatomical visualisation of upper airway obstruction during sedated sleep. There is a lack of standardised procedure and objective measurement associated with information capture, information management, evaluation of DISE findings, treatment planning, and treatment outcomes. The objective of this study is to present clinical feasibility results using a DISE DATA FUSION system for capturing, merging, displaying and storing anatomical data from an endoscopic imaging system and cardiorespiratory data from an anaesthesiological monitoring system simultaneously in real-time during DISE. This prospective cohort study included 20 patients presenting with symptoms of sleep related breathing disorders undergoing drug-induced sedation endoscopy and had volunteered for DISE DATA FUSION system to be used during their DISE assessment. The DISE DATA FUSION system was used to capture, merge, display, and store anatomical changes from an endoscopic imaging system and cardiorespiratory changes from an anaesthesiological monitoring system simultaneously in real time during drug induced sedation endoscopy assessment. In all 20 patients, anatomical obstructions at different levels of the pharyngeal lumen (soft palate, velum, tonsils, oropharynx lateral wall, base of tongue, and epiglottis) with a different obstruction configuration and severity were captured simultaneously in real time with its associated cardiorespiratory parameters. Furthermore, a composite video consisting of an anatomical image, blood oxygen level, pulse rate, blood pressure, and timestamp was created for every obstructive event. Our system provides a useful and better way of capturing, merging, visualising, and storing anatomical data/physiological data simultaneously during DISE in real time. Furthermore, it enhances the understanding of the impact of the anatomical severity due to the simultaneous display of the cardiovascular parameters at that specific time of anatomical obstruction for optimising surgical decision based on DISE. PMID- 29043477 TI - Laryngopharyngeal reflux is a potential cause of nasal congestion and obstructive sleep apnea syndrome. PMID- 29043478 TI - The compensatory enlargement of the remaining thyroid lobe following hemithyroidectomy is small and without impact on symptom relief. AB - According to previous studies, hemithyroidectomy results in growth of the remaining thyroid lobe by up to 30% in first 12 months after surgery. However, this estimate is based on imprecise methods, high inter- and intra-observer variability, and lack of blinding of the measurements. Furthermore, it is unknown whether enlargement of the remaining hemi-thyroid interferes with the improvement in symptoms after surgery for goiter. We aimed to assess the impact of postoperative thyroid growth on goiter symptom relief following hemithyroidectomy in patients with benign nodular goiter. Outcomes were measured before and 6 months after hemithyroidectomy in 44 patients. Thyroid volumes were determined by two independent and blinded observers using magnetic resonance imaging (MRI). Inter- and intra-observer variability was visualized by Bland-Altman plots. Goiter symptoms were assessed by the Thyroid-Specific Patient-Reported-Outcome Questionnaire (ThyPRO) on a scale from 0 to 100 points. After hemithyroidectomy, the remaining thyroid lobe was 13.7 +/- 6.4 mL, and enlarged by a mean of 1.8 mL over 6 months [95% confidence interval (CI) (1.6; 2.1), p < 0.001], corresponding to an increase of 17% [95% CI (12; 22)]. The Goiter Symptom score improved by 27 points [95% CI (21; 34), p < 0.0001] from median 39 points (range 2-86) at baseline, and was unaffected by the compensatory thyroid growth. Six months after hemithyroidectomy, using blinded MRI evaluations, we demonstrated a small but significant postoperative growth of the remaining hemi-thyroid, which did not significantly affect the considerable improvement in goiter symptoms. PMID- 29043479 TI - Altered auditory and vestibular functioning in individuals with low bone mineral density: a systematic review. AB - Alteration in the process of bone remodelling is associated with falls and fractures due to increased bone fragility and altered calcium functioning. The auditory system consists of skeletal structures and is, therefore, prone to getting affected by altered bone remodelling. In addition, the vestibule consists of huge volumes of calcium (CaCO3) in the form of otoconia crystals and alteration in functioning calcium levels could, therefore, result in vestibular symptoms. Thus, the present study aimed at compiling information from various studies on assessment of auditory or vestibular systems in individuals with reduced bone mineral density (BMD). A total of 1977 articles were searched using various databases and 19 full-length articles which reported auditory and vestibular outcomes in persons with low BMD were reviewed. An intricate relationship between altered BMD and audio-vestibular function was evident from the studies; nonetheless, how one aspect of hearing or balance affects the other is not clear. Significant effect of reduced bone mineral density could probably be due to the metabolic changes at the level of cochlea, secondary to alterations in BMD. One could also conclude that sympathetic remodelling is associated with vestibular problems in individual; however, whether vestibular problems lead to altered BMD cannot be ascertained with confidence. The studies reviewed in the article provide an evidence of possible involvement of hearing and vestibular system abnormalities in individuals with reduced bone mineral density. Hence, the assessment protocol for these individuals must include hearing and balance evaluation as mandatory for planning appropriate management. PMID- 29043480 TI - Body mass index (BMI), postoperative appearance satisfaction, and sexual function in breast cancer survivorship. AB - PURPOSE: We sought to explore the correlation between BMI and postoperative sexual function, body image, and breast-specific sensuality before and after breast cancer surgery. METHODS: A cross-sectional survey of patients at least 1 year from surgery employed the Female Sexual Function Index (FSFI) and investigator-generated questions. Patients who underwent lumpectomy (L), mastectomy (M), and mastectomy with reconstruction (MR) were compared across three BMI groups: normal weight, overweight, and obese. RESULTS: Two hundred fifty-five patients underwent lumpectomy (L, n = 174), mastectomy (M, n = 22), or mastectomy with reconstruction (MR, n = 59). Median age was 57 (range 30-93) and median BMI was 28 (range 19-45). Obese and overweight women reported more appearance dissatisfaction (18.1 and 13.0%) than normal weight women (4.1%) (p = 0.01). Lower satisfaction was associated with increasing BMI within the MR group (p = 0.05). The obese group's median FSFI score met criteria for sexual dysfunction (25.90, range 11.30-33.10). More overweight women reported their chest played an important role in intimacy before and after surgery, but a postoperative decline in the importance of this role was observed in all groups. CONCLUSIONS: Greater post-treatment BMI is inversely related to postoperative appearance satisfaction, particularly in those undergoing mastectomy with reconstruction. The role of the breast in intimacy is greatest in overweight women, but decreases postoperatively in all BMI groups. IMPLICATIONS FOR CANCER SURVIVORS: Postoperative appearance satisfaction and sexual function seems to be correlated to post-treatment BMI, which highlights the need to encourage perioperative weight management for improved survivorship outcomes. PMID- 29043481 TI - Irish Thoracic Society Annual Scientific Meeting 2017 10th - 11th November 2017, Limerick Strand Hotel, Limerick. PMID- 29043482 TI - Assessing the Role of Gambling on Problematic Alcohol Consumption by Police Officers. AB - While a number of studies have attributed critical incident stressors to alcohol abuse among police officers, no study has examined the role gambling, if any, plays on problematic alcohol consumption. Therefore, data from the Police Stress and Domestic Violence in Police Families in Baltimore, Maryland, 1997-1999 are analyzed to test the influence of gambling on problematic alcohol consumption engaged by police officers. Results indicated that gambling is significant in predicting problematic alcohol consumption. Burnout, peer drinking, and self control also predicted the dependent variable. The study's results, as well as the study's limitations and directions for future research, are also discussed. PMID- 29043483 TI - Iron toxicity in yeast: transcriptional regulation of the vacuolar iron importer Ccc1. AB - All eukaryotes require the transition metal, iron, a redox active element that is an essential cofactor in many metabolic pathways, as well as an oxygen carrier. Iron can also react to generate oxygen radicals such as hydroxyl radicals and superoxide anions, which are highly toxic to cells. Therefore, organisms have developed intricate mechanisms to acquire iron as well as to protect themselves from the toxic effects of excess iron. In fungi and plants, iron is stored in the vacuole as a protective mechanism against iron toxicity. Iron storage in the vacuole is mediated predominantly by the vacuolar metal importer Ccc1 in yeast and the homologous transporter VIT1 in plants. Transcription of yeast CCC1 expression is tightly controlled primarily by the transcription factor Yap5, which sits on the CCC1 promoter and activates transcription through the binding of Fe-S clusters. A second mechanism that regulates CCC1 transcription is through the Snf1 signaling pathway involved in low-glucose sensing. Snf1 activates stress transcription factors Msn2 and Msn4 to mediate CCC1 transcription. Transcriptional regulation by Yap5 and Snf1 are completely independent and provide for a graded response in Ccc1 expression. The identification of multiple independent transcriptional pathways that regulate the levels of Ccc1 under high iron conditions accentuates the importance of protecting cells from the toxic effects of high iron. PMID- 29043484 TI - The role of yeast m6A methyltransferase in peroxisomal fatty acid oxidation. AB - The precise and controlled regulation of gene expression at transcriptional and post-transcriptional levels is crucial for the eukaryotic cell survival and functions. In eukaryotes, more than 100 types of post-transcriptional RNA modifications have been identified. The N6-methyladenosine (m6A) modification in mRNA is among the most common post-transcriptional RNA modifications known in eukaryotic organisms, and the m6A RNA modification can regulate gene expression. The role of yeast m6A methyltransferase (Ime4) in meiosis, sporulation, triacylglycerol metabolism, vacuolar morphology, and mitochondrial functions has been reported. Stress triggers triacylglycerol accumulation as lipid droplets. Lipid droplets are physically connected to the different organelles such as endoplasmic reticulum, mitochondria, and peroxisomes. However, the physiological relevance of these physical interactions remains poorly understood. In yeast, peroxisome is the sole site of fatty acid beta-oxidation. The metabolic status of the cell readily governs the number and physiological function of peroxisomes. Under low-glucose or stationary-phase conditions, peroxisome biogenesis and proliferation increase in the cells. Therefore, we hypothesized a possible role of Ime4 in the peroxisomal functions. There is no report on the role of Ime4 in peroxisomal biology. Here, we report that IME4 gene deletion causes peroxisomal dysfunction under stationary-phase conditions in Saccharomyces cerevisiae; besides, the ime4Delta cells showed a significant decrease in the expression of the key genes involved in peroxisomal beta-oxidation compared to the wild-type cells. Therefore, identification and determination of the target genes of Ime4 that are directly involved in the peroxisomal biogenesis, morphology, and functions will pave the way to better understand the role of m6A methylation in peroxisomal biology. PMID- 29043485 TI - Nitrate assimilation pathway (NAP): role of structural (nit) and transporter (ntr1) genes in Fusarium oxysporum f.sp. lycopersici growth and pathogenicity. AB - The tomato pathogen Fusarium oxysporum f.sp. lycopersici possesses the capability to use nitrate as the only nitrogen source under aerobic and anaerobic conditions and to activate virulence-related functions when cultivated in the presence of nitrate, but not in ammonium. The genome of F. oxysporum f.sp. lycopersici encodes three paralogs nitrate reductase (NR) genes (nit1, nit2 and nit3) and one predicted ortholog of the Aspergillus nidulans high-affinity nitrate/nitrite transporters NtrA and NtrB, named ntr1. We set out to clarify the role of nit1, nit2, nit3 and ntr1 genes in nitrate assimilation and in the virulence of F. oxysporum f.sp. lycopersici. Quantitative RT-PCR analysis revealed that only nit1, nit2 and ntr1 are expressed at significant levels during growth in nitrate as the only nitrogen source. Targeted deletion of nit1 and ntr1, but not of nit2 or nit3, severely impaired growth of F. oxysporum on nitrate as nitrogen source, indicating that Nit1 and Ntr1 proteins are involved in nitrate assimilation by the fungus; biochemical analysis of nit mutants indicated that Nit1 and Nit2 enzymes contribute to about 50 and 30% of the total NR activity, respectively. In addition, a spontaneous chlorate-resistant mutant derived from F. oxysporum 4287, denoted NitFG, was characterized, showing inability to grow in nitrate under aerobic and anaerobic conditions and low levels of NR activity, in spite of its increased transcription levels of nit1 and nit2 genes. Tomato plant infection assays showed that NitFG and ?ntr1 mutants induced an earlier death in tomato plants, whereas the single mutants ?nit1, ?nit2 and ?nit1?nit2 double mutant showed a mortality rate similar to the wild-type strain. Taken together, these results indicate that the Nit1 and Ntr1 proteins are important for nitrate assimilation of F. oxysporum f.sp. lycopersici incubated under aerobic and anaerobic conditions and that this metabolic process is not essential for the virulence of the fungus. These observations open new questions about the role of Nit1, Nit2, and Nit3 proteins in other routes of nitrate metabolism in this pathogenic fungus and in the possible regulatory role that can be exerted by the AreA protein in these routes. PMID- 29043486 TI - Study of In-Trap Ion Clouds by Ion Trajectory Simulations. AB - Gaussian distribution has been utilized to describe the global number density distribution of ion cloud in the Paul trap, which is known as the thermal equilibrium theory and widely used in theoretical modeling of ion clouds in the ion traps. Using ion trajectory simulations, however, the ion clouds can now also be treated as a dynamic ion flow field and the location-dependent features could now be characterized. This study was carried out to better understand the in-trap ion cloud properties, such as the local particle velocity and temperature. The local ion number densities were found to be heterogeneously distributed in terms of mean and distribution width; the velocity and temperature of the ion flow varied with pressure depending on the flow type of the neutral molecules; and the "quasi-static" equilibrium status can only be achieved after a certain number of collisions, for which the time period is pressure-dependent. This work provides new insights of the ion clouds that are globally stable but subjected to local rf heating and collisional cooling. Graphical Abstract ?. PMID- 29043487 TI - The Differences in Spirometry Predictive Equations in Classifying Presence and Degree of Lung Function Impairment: Which Suit Fits the Best? AB - PURPOSE: The aim of this study was to compare the differences between three most commonly used predictive equations (PE): ECCS (European Community of Coal and Steel), the third National Health and Nutrition Examination Survey (NHANES III), and GLI (Global Lung Initiative) in healthy individuals and when grading severity of lung function impairment in patients with obstructive lung diseases. METHODS: The study included 200 healthy volunteers and 200 patients with obstructive lung diseases at the Institute for Pulmonary Diseases of Vojvodina. In all subjects, we calculated the absolute and relative (percent) predicted values using ECCS, NHANES III, and GLI reference equations. RESULTS: The mean differences between ECCS and NHANES III predicted values were 5.63% (95% CI 5.29-5.98%, p < 0.001) for FEV1 and 10% (95% CI 9.52-10.79%, p < 0.001) for FVC. Similar differences were observed between ECCS and GLI predicted values. There were minimal differences between NHANES III and GLI predictive values. In healthy subjects, the mean absolute difference between measured FEV1 and FEV1 ECCS predicted was 0.36l (95% CI 0.32l, 0.40l, p < 0.001), FEV1 NHANES predicted was 0.30 l (95% CI 0.27-0.35l, p < 0.001), and FEV1 GLI predicted was 0.31l (95% CI 0.27- 0.35l, p < 0.001). The use of three different PE leads to significant differences in classification of obstruction severity in both asthma and COPD patients. CONCLUSIONS: There were significant differences between FEV1 and FVC predicted when using different PE. The absolute difference between actual and predicted FEV1 in healthy individuals was highest when using ECCS. The use of different PE may change the interpretation of severity of airway obstruction. PMID- 29043488 TI - Hair analysis does not allow to discriminate between acute and chronic administrations of a drug in young children. AB - There are many differences between the hair from children and that of adult subjects, the hair being thinner, more porous with a different growth rate from the usual 1 cm/month observed in adults. In order to determine whether hair analysis could discriminate between chronic use and acute administration of a drug in children like in adults, we analyzed hair from 18 children aged between 1 day and 15 years in whom the administration of different drugs was known (single therapeutic administration or acute intoxication). A strand of hair was sampled within 1 to 45 days after treatment or intoxication. Analysis was conducted using LC/MS/MS. In the 10 youngest children, aged between 1 day and 29 months, the compounds administered in hospital or responsible for intoxication (lidocaine, ropivacaine, diazepam, midazolam, levetiracetam, morphine, ketamine, methadone, buprenorphine, THC, MDMA) were found in all segments of the hair independently of the time of sampling (1-45 days after ingestion). The concentrations detected were similar along the hair shaft, showing a radial diffusion and incorporation of the analytes in the hair of young children from the sebum. Concentrations could be very high when sampled shortly after administration (72 ng/mg for methadone, 75 ng/mg for MDMA after 3 days) and lower when sampling later (1.2 ng/mg for MDMA after 45 days). In these cases, hair analysis allowed to highlight the compounds responsible for intoxication even when they had disappeared from the blood or urine but should not be used to discriminate long-term exposure to a drug. In the eight remaining children aged from 34 months to 15 years, the drugs used in hospital (lidocaine, diazepam, morphine) or responsible for intoxication (THC, codeine, buprenorphine) were not found in any analyzed segments sampled 1 to 5 days after administration of the drugs, in agreement with the non incorporation of the drugs from the sebum into the hair. For those children aged over 34 months, hair analysis allows to determine the chronic administration of a drug, like in adults. PMID- 29043490 TI - HAQ score is an independent predictor of sustained remission in patients with rheumatoid arthritis: methodological issues. PMID- 29043489 TI - Comparative transcriptome analysis of Apis mellifera antennae of workers performing different tasks. AB - Honey bee is a social insect. Its colony is mainly coordinated by the chemical signals such as pheromones produced by queen or brood. Correspondingly, the worker bee developed numerous complicated olfactory sensilla in antennae for detection of these colony chemical signals and nectar/pollen signals in foraging. With the normal development of new emerged workers, young adults (nurse bee) worked in colony at the first 2-3 weeks and then followed by the foraging activity outside of the hive, which give rise to great change of the surrounding chemical signals. However, the olfactory adaption mechanism of worker bee in these processes of behavioral development is still unclear. In this study, we conducted a comprehensive and quantitative analysis of gene expression in Apis mellifera antenna of newly emerged workers, nurses and foragers using transcriptome analysis. Meanwhile, we constructed experimental colonies to collect age-matched samples, which were used to determine whether task is the principal determinant of differential expression. RNA sequencing and quantitative real-time polymerase chain reaction revealed that 6 and 14 genes were closely associated with nurse and forager behaviors, respectively. Furthermore, a broad dynamic range of chemosensory gene families and candidate odorant degrading enzymes were analyzed at different behavior statuses. We firstly reported genes associated with nursing/foraging behavior from antennae and the variations of expression of genes belonging to various olfactory gene families at different development stages. These results not only could contribute to elucidating the relationship between olfactory and behavior-related changes, but also provide a new perspective into the molecular mechanism underlying honey bee division of labor. PMID- 29043491 TI - The multifactorial origin of posterior reversible encephalopathy syndrome in cyclophosphamide-treated lupus patients. AB - The cyclophosphamide as a predisposing factor for Posterior Reversible Encephalopathy Syndrome (PRES) and therapeutic option for systemic lupus erythematosus (SLE) is still confusing. The first and only case of PRES, probably induced by cyclophosphamide, in Croatia followed by the findings of 36 SLE patients diagnosed with PRES after treatment with cyclophosphamide worldwide are described. An 18-year-old Caucasian female patient with a 1-year history of SLE was admitted to the hospital due to lupus nephritis and acute arthritis. After the second dose of cyclophosphamide was administered, according to the Euro-lupus protocol, the patient presented with a grand mal status epilepticus. The differential diagnosis of neurolupus, cerebrovascular insult, and infection were excluded. The MRI findings showed brain changes in corresponding to PRES. The treatment consisted of antihypertensives, antiepileptics, antiedema therapy, mechanical ventilation, and avoiding further cyclophosphamide use. A Naranjo Adverse Drug Reaction Probability Scale total score of five and a probable reaction related to drug therapy (cyclophosphamide, PRES) was confirmed. In this systematic review, along with cyclophosphamide use, the main predisposing factors involved in PRES occurrence in SLE patients were active SLE and renal involvement. Due to the high number of simultaneously involved predisposing factors (max. six) and their overlapping effect, it is still not possible to clearly establish the role of every factor on PRES onset. The use of cyclophosphamide, as a contributing factor for PRES onset, should be carefully assessed, based on clinicians' experience and knowledge, in the setting of active SLE. PMID- 29043492 TI - In reply to the letter to the Editor, "HAQ score is an independent predictor of sustained remission in patients with rheumatoid arthritis". PMID- 29043493 TI - Community-based intervention to promote physical activity in rheumatoid arthritis (CIPPA-RA): a study protocol for a pilot randomised control trial. AB - Rheumatoid arthritis (RA) is a chronic, inflammatory condition which may cause pain, stiffness and fatigue. People who have RA have reduced levels of physical activity due to these symptoms. Interventions targeting physical activity behaviour in this population have had limited efficacy. This paper describes a protocol for a pilot randomised controlled trial (RCT) of a theory-based intervention delivered in a community setting designed to promote physical activity in people who have RA. The aim of the pilot study is to assess the impact of the intervention on moderate-intensity physical activity in people with RA. The objectives are to obtain reliable estimates regarding recruitment rates; participant retention, protocol adherence and generate potential effect size estimates to inform sample size calculations for a main trial on physical activity participation. Semi-structured interviews will be conducted with a selected sample of participants to explore their experiences. Participants will be recruited from direct referrals from the rheumatology clinics in a public hospital. Participants meeting inclusion criteria will be randomised into a 6 week physical activity intervention (four sessions delivered over a 6-week period by a trained physiotherapist) or a control group (physical activity information leaflet). Results of the pilot study will provide data to determine if a larger RCT is feasible. Qualitative data will inform intervention design and delivery. The findings will be disseminated to health professionals, in peer-reviewed journals and conference presentations. PMID- 29043495 TI - Endogenous control of fuelling in a migratory songbird. AB - The Northern wheatear (Oenanthe oenanthe) is a small long-distance migratory songbird that breeds throughout the Northern hemisphere and winters in sub Saharan Africa. The main components of its migratory behaviour, i.e. seasonal migratory restlessness and body mass changes, have been shown to be under endogenous control. However, it is still unknown whether the disposition to accumulate fuel reserves is an inherited trait. We cross-bred Northern wheatears from two populations known to accumulate different amounts of fuel in a common garden setup, and measured their maximum fuelling as the difference between the lightest and heaviest body mass recorded over each year for 4 years or longer. We used the largest value as a measure of maximum voluntary fuelling potential. F1 generation "hybrids" showed intermediate values to those of the parent populations. It was previously shown that in the wheatear the amount of fuel accumulated is closely linked to the presence of large ecological barriers to cross. This study shows that this adaptation has been fixed at the genetic level, and that intermediate traits are transferred to the next generation, with possible implications on the viability of such individuals in nature. PMID- 29043494 TI - Influence of Proline Substitution on the Bioactivity of Mammalian-Derived Antimicrobial Peptide NK-2. AB - Multidrug-resistant bacteria are emerging as a global threat, making the search for alternative compounds urgent. Antimicrobial peptides (AMPs) became a promising hotspot due to their distinct action mechanism and possibility to be used as an alternative or complement to traditional antibiotics. However, gaining a better understanding about the relationship between antimicrobial peptides structure and its bioactivity is crucial for the development of next generation of antimicrobial agents. NK-2, derived from mammalian protein NK-lysin, has potent antitumor and bactericidal abilities. As proline was considered to be an effective alpha-helix breaker due to its restricted conformation, to better comprehend the effects of proline in the structure-activity relationship of NK-2, we constructed two NK-2 analogs. We examined the biological activities of NK-2 and its proline substitution analogs and analyzed the resulting conformational changes. Our results showed that introducing proline into the primary sequence of NK-2 significantly decreased the antitumor, antibacterial, and cytotoxic effects, as well as DNA binding activity by changing the alpha-helix content. However, alpha-helical content was not the only determining factor, the position of proline inserted was also critical. This study will allow for clearer insight into the role of proline in structure and bioactivity of NK-2 and provide a foundation for future studies. PMID- 29043496 TI - Erlotinib Plus Bevacizumab Phase ll Study in Patients with Advanced Non-small Cell Lung Cancer (JO25567): Updated Safety Results. AB - INTRODUCTION: The phase II JO25567 study compared the efficacy and safety of erlotinib plus bevacizumab vs. erlotinib alone as first-line therapy for advanced epidermal growth factor receptor (EGFR) mutation-positive non-small-cell lung cancer (NSCLC). OBJECTIVE: Our objective is to provide updated analyses of safety and the assessment of manageability of specific adverse events. METHODS: Patients with stage IIIB/IV or recurrent, non-squamous, EGFR mutation-positive NSCLC were randomized to receive erlotinib plus bevacizumab or erlotinib. The primary endpoint was progression-free survival. Adverse event frequency rates, predictability and manageability, reasons for discontinuation, time to onset, and outcomes of specific adverse events were analyzed. RESULTS: The safety analysis population comprised 152 randomized patients (75 erlotinib plus bevacizumab; 77 erlotinib) who received at least one dose of study drug between February 2011 and March 2012. There was no difference in overall incidence of serious adverse events between arms, but more grade 3 or higher adverse events were reported with erlotinib plus bevacizumab (90.7%) than with erlotinib (53.2%), primarily due to grade 3 hypertension. Hypertension was controllable with antihypertensive medications in most cases. Proteinuria and bleeding were also more frequently reported with erlotinib plus bevacizumab than with erlotinib but were manageable and did not lead to early discontinuations. CONCLUSIONS: The addition of bevacizumab to erlotinib prolonged progression-free survival in EGFR mutation positive NSCLC. Follow-up safety data were consistent with the known safety profiles of both erlotinib and bevacizumab in NSCLC; this combination appeared to be manageable, and treatment was well tolerated. JapicCTI-111390. PMID- 29043497 TI - Characterization of Actinidia virus 1, a new member of the family Closteroviridae encoding a thaumatin-like protein. AB - A new member of the family Closteroviridae was detected in Actinidia chinensis grown in Italy, using next generation sequencing of double-stranded RNA. The virus isolate, named Actinidia virus 1 (AcV-1) has a genome of 18,848 nts in length, a structure similar to the unclassified persimmon virus B (PeVB) and contains 12 open reading frames (ORFs) greater than 6 KDa, one carrying two papain-like leader proteases, a methyltransferase, a helicase and an RNA dependent RNA polymerase domain. Additional ORFs code for homologs of heat shock protein 70, heat shock protein 90 and a coat protein. Curiously, AcV-1 and PeVB genomes code for a thaumatin-like protein, a peculiarity unreported for other viruses. In phylogenetic analyses both viruses group in a distinct clade evolutionarily related to closteroviruses. The final taxonomic position of AcV-1 within the family Closteroviridae is yet to be clarified. PMID- 29043498 TI - Sex-specific strategies of resource allocation in response to competition for light in a dioecious plant. AB - The differential plasticity hypothesis suggests that sexual dimorphism in dioecious plants could evolve in response to sex-specific resource requirements for reproduction (i.e., high carbon requirements for ovules and high nitrogen demands for pollen). When resources become limiting during growth, males and females should, therefore, adjust their allocation to resource-harvesting organs differently. To investigate the potential for plants to respond to resource limitation late in life and to test the differential plasticity hypothesis, we grew male and female individuals of the annual wind-pollinated plant Mercurialis annua in a common garden. Late in the growth season, we simulated a change in competition by decreasing plant density in half of the replicates. We measured both allocation to vegetative and reproductive traits and analyzed the relative allocation to reproduction vs. growth. Males and females differentially adjusted their resource allocation in response to varying plant densities, despite the fact that they were reproductively mature. Males maintained the same relative allocation of resource to reproductive vs. vegetative tissues at both densities. In contrast, females reduced vegetative growth proportionally less than seed production at the higher density. Our results highlight the dynamic nature of allocation decisions taken by plants, which respond quickly and in a sexually dimorphic way to changes in their competitive circumstances. The existence of resource 'currencies' limiting male and female functions differently have potentially led to the evolution of sex-specific strategies of resource acquisition and deployment, with females conserving resources for vegetative organs to ensure their future carbon-rich reproduction. PMID- 29043499 TI - Open-circuit respirometry: a historical review of portable gas analysis systems. AB - Scientists such as physiologists, engineers, and nutritionists have often sought to estimate human metabolic strain during daily activities and physical pursuits. The measurement of human metabolism can involve direct calorimetry as well as indirect calorimetry using both closed-circuit respirometry and open-circuit methods that can include diluted flow chambers and laboratory-based gas analysis systems. For field studies, methods involving questionnaires, pedometry, accelerometery, heart rate telemetry, and doubly labelled water exist, yet portable metabolic gas analysis remains the gold standard for most field studies on energy expenditure. This review focuses on research-based portable systems designed to estimate metabolic rate typically under steady-state conditions by critically examining each significant historical innovation. Key developments include Zuntz's 1906 innovative system, then a significant improvement to this purely mechanical system by the widely adopted Kofranyi-Michaelis device in the 1940s. Later, a series of technical improvements: in electronics lead to Wolf's Integrating Motor Pneumotachograph in the 1950s; in polarographic O2 cells in 1970-1980's allowed on-line oxygen uptake measures; in CO2 cells in 1990s allowed on-line respiratory exchange ratio determination; and in advanced sensors/computing power at the turn of the century led to the first truly breath by-breath portable systems. Very recent significant updates to the popular Cosmed and Cortex systems and the potential commercial release of the NASA-developed 'PUMA' system show that technological developments in this niche area are still incrementally advancing. PMID- 29043500 TI - Optimal pacing and carbohydrate intake strategies for ultramarathons. AB - PURPOSE: The purpose of this research is to determine the pacing and nutrition strategies which minimize completion time and carbohydrate intake for athletes competing in ultramarathon races. METHODS: We present the formulation of a two phase optimization model. The first-phase mixed-integer nonlinear program (MINLP) determines the minimum completion time subject to the altitude, terrain, and distance of the race, as well as the mass and cardiovascular fitness of the athlete. The second-phase MINLP determines the minimum carbohydrate intake required for the athlete to achieve the completion time prescribed by the first phase subject to the flow of carbohydrates through the stomach, liver, and muscles. Consequently, the second-phase model provides the optimal pacing and nutrition strategies for a particular athlete for each kilometer of a particular race. RESULTS: We validate model results for a wide range of athlete parameters by comparing completion times to those reported for two case-study events. We also compare the kilometer-by-kilometer pacing and nutrition strategies prescribed by the model to those of a particular athlete. In all cases, the model results closely match those witnessed in the actual events. CONCLUSION: We have developed a baseline metabolic model that provides athletes prescriptive guidance regarding optimal pacing and carbohydrate intake strategies prior to competing in ultramarathon races. Given the highly variable topographical characteristics common to many ultramarathon courses and the potential inexperience of many athletes with such courses, our model provides valuable insight to competitors who might otherwise fail to complete the event due to exhaustion or carbohydrate depletion. PMID- 29043501 TI - Salmon Bias or Red Herring? : Comparing Adult Mortality Risks (Ages 30-90) between Natives and Internal Migrants: Stayers, Returnees and Movers in Rotterdam, the Netherlands, 1850-1940. AB - The purpose of this research is to empirically test the salmon bias hypothesis, which states that the "healthy migrant" effect-referring to a situation in which migrants enjoy lower mortality risks than natives-is caused by selective return migration of the weak, sick, and elderly. Using a unique longitudinal micro-level database-the Historical Sample of the Netherlands-we tracked the life courses of internal migrants after they had left the city of Rotterdam, which allowed us to compare mortality risks of stayers, returnees, and movers using survival analysis for the study group as a whole, and also for men and women separately. Although migrants who stayed in the receiving society had significantly higher mortality risks than natives, no significant difference was found for migrants who returned to their municipality of birth (returnees). By contrast, migrants who left for another destination (movers) had much lower mortality risks than natives. Natives who left Rotterdam also had significantly lower mortality risks than natives who stayed in Rotterdam. Female migrants, in particular, who stayed in the receiving urban society paid a long-term health price. In the case of Rotterdam, the salmon bias hypothesis can be rejected because the lower mortality effect among migrants was not caused by selective return-migration. The healthy migrant effect is real and due to a positive selection effect: Healthier people are more likely to migrate. PMID- 29043502 TI - An Integrated Approach Using Chaotic Map & Sample Value Difference Method for Electrocardiogram Steganography and OFDM Based Secured Patient Information Transmission. AB - This paper presents a patient's confidential data hiding scheme in electrocardiogram (ECG) signal and its subsequent wireless transmission. Patient's confidential data is embedded in ECG (called stego-ECG) using chaotic map and the sample value difference approach. The sample value difference approach effectually hides the patient's confidential data in ECG sample pairs at the predefined locations. The chaotic map generates these predefined locations through the use of selective control parameters. Subsequently, the wireless transmission of the stego-ECG is analyzed using the Orthogonal Frequency Division Multiplexing (OFDM) system in a Rayleigh fading scenario for telemedicine applications. Evaluation of proposed method on all 48 records of MIT-BIH arrhythmia ECG database demonstrates that the embedding does not alter the diagnostic features of cover ECG. The secret data imperceptibility in stego-ECG is evident through the statistical and clinical performance measures. Statistical measures comprise of Percentage Root-mean-square Difference (PRD), Peak Signal to Noise Ratio (PSNR), and Kulback-Leibler Divergence (KL-Div), etc. while clinical metrics includes wavelet Energy Based Diagnostic Distortion (WEDD) and Wavelet based Weighted PRD (WWPRD). The various channel Signal-to-Noise Ratio scenarios are simulated for wireless communication of stego-ECG in OFDM system. The proposed method over all the 48 records of MIT-BIH arrhythmia database resulted in average, PRD = 0.26, PSNR = 55.49, KL-Div = 3.34 * 10-6, WEDD = 0.02, and WWPRD = 0.10 with secret data size of 21Kb. Further, a comparative analysis of proposed method and recent existing works was also performed. The results clearly, demonstrated the superiority of proposed method. PMID- 29043503 TI - Pharmacoperones for Misfolded Gonadotropin Receptors. AB - The gonadotropin receptors (luteinising hormone receptor; LHR and follicle stimulating hormone receptor; FSHR) are G protein-coupled receptors (GPCRs) that play an important role in the endocrine control of reproduction. Thus genetic mutations that cause impaired function of these receptors have been implicated in a number of reproductive disorders. Disease-causing genetic mutations in GPCRs frequently result in intracellular retention and degradation of the nascent protein through misfolding and subsequent recognition by cellular quality control machinery. The discovery and development of novel compounds termed pharmacological chaperones (pharmacoperones) that can stabilise misfolded receptors and restore trafficking and plasma membrane expression are therefore of great interest clinically, and promising in vitro data describing the pharmacoperone rescue of a number of intracellularly retained mutant GPCRs has provided a platform for taking these compounds into in vivo trials. Thienopyrimidine small molecule allosteric gonadotropin receptor agonists (Org 42599 and Org 41841) have been demonstrated to have pharmacoperone activity. These compounds can rescue cell surface expression and in many cases, hormone responsiveness, of a range of retained mutant gonadotropin receptors. Should gonadotropin receptor selectivity of these compounds be improved, they could offer therapeutic benefit to subsets of patients suffering from reproductive disorders attributed to defective gonadotropin receptor trafficking. PMID- 29043505 TI - Structural and Functional Analysis of Sodium Channels Viewed from an Evolutionary Perspective. AB - Voltage-gated sodium channels initiate and propagate action potentials in excitable cells. They respond to membrane depolarization through opening, followed by fast inactivation that terminates the sodium current. This ON-OFF behavior of voltage-gated sodium channels underlays the coding of information and its transmission from one location in the nervous system to another. In this review, we explore and compare structural and functional data from prokaryotic and eukaryotic channels to infer the effects of evolution on sodium channel structure and function. PMID- 29043504 TI - The Molecular Physiopathogenesis of Islet Amyloidosis. AB - Human islet amyloid polypeptide or amylin (hA) is a 37-amino acid peptide hormone produced and co-secreted with insulin by pancreatic beta-cells. Under physiological conditions, hA regulates a broad range of biological processes including insulin release and slowing of gastric emptying, thereby maintaining glucose homeostasis. However, under the pathological conditions associated with type 2 diabetes mellitus (T2DM), hA undergoes a conformational transition from soluble random coil monomers to alpha-helical oligomers and insoluble beta-sheet amyloid fibrils or amyloid plaques. There is a positive correlation between hA oligomerization/aggregation, hA toxicity, and diabetes progression. Because the homeostatic balance between hA synthesis, release, and uptake is lost in diabetics and hA aggregation is a hallmark of T2DM, this chapter focuses on the biophysical and cell biology studies investigating molecular mechanisms of hA uptake, trafficking, and degradation in pancreatic cells and its relevance to h's toxicity. We will also discuss the regulatory role of endocytosis and proteolytic pathways in clearance of toxic hA species. Finally, we will discuss potential pharmacological approaches for specific targeting of hA trafficking pathways and toxicity in islet beta-cells as potential new avenues toward treatments of T2DM patients. PMID- 29043506 TI - Fatigue failure of the cephalomedullary nail: revision options, outcomes and review of the literature. AB - Cephalomedullary nail (CMN) failure is a rare entity following hip fracture treatment. However, it poses significant challenges for revision surgery, both mechanically and biologically. Nail failure rates have been reported at < 2%; however, no published studies have reported revision surgery procedures and their respective outcomes. We present a regional experience, with outcomes, of the revision options. We identified 20 fatigued CMNs that underwent four different revision procedures. Mean age was 73 +/- 15.24 years, with a 3:1 female preponderance, and a median ASA grade of 3. Post-operative CMN radiographs demonstrated a significant number of fractures were fixed in varus, with reductions in neck-shaft angles post-operatively. A "poor" quality of reduction resulted in significantly earlier nail failure, compared to "adequate" and "good" (p = 0.027). Tip-Apex Distance (TAD) mean was 23.2 +/- 8.3 mm, and an adequate TAD with three-point fixation was seen in only 35% of cases. Mean time to failure was 401.0 +/- 237.2 days, with mean age at failure of 74.0 +/- 14.8 years. Options after failure included revision CMN nail, proximal femoral locking plate (PFLP), long-stem or restoration arthroplasty, or femoral endoprosthesis. Barthel Functional Index scores showed no significant difference at 3 and 12 months post operatively, nor any difference between treatment groups. Mean 12-month mortality was 30%, akin to a primary hip fracture mortality risk according to NICE guidelines. Mortality rates were lowest in revision nails. Subsequent revision rates were higher in the PFLP group. There is no reported evidence on the best surgical technique for managing the failed CMN, with no clear functional benefit in the options above. Good surgical technique at the time of primary CMN surgery is critical in minimising fatigue failure. After revision, overall mortality rates were equivalent to reported primary hip fracture mortality rates. Further multicentre evaluations are required to assess which technique convey the best functional outcomes without compromising 12-month mortality rates. PMID- 29043507 TI - Extraction of mandibular premolars and molars: comparison between local infiltration via pressure syringe and inferior alveolar nerve block anesthesia. AB - OBJECTIVES: The purpose of this study was to evaluate the anesthetic efficiency of local infiltration anesthesia administered with a pressure syringe (P-INF) via a special technique versus direct block anesthesia of the inferior alveolar nerve (IANB) for tooth extraction in the posterior mandible. MATERIALS AND METHODS: In a prospective randomized study, 101 teeth in 101 patients were extracted in the posterior mandible under local anesthesia whereby two different administration techniques were used (P-INF n = 48; IANB n = 53). Primary objectives were comparisons of anesthetic success rate (yes/no) and efficacy (full/sufficient vs. insufficient). Secondary objectives were patients' pain perception during treatment, pain of injection (numerical rating scale), need for second injections (always IANB), time until onset of anesthetic action (min), and duration of local numbness (min). RESULTS: IANB was successful in all cases, whereas initial P-INF achieved 35% of success only. Furthermore, IANB reached significant higher values of anesthetic efficacy compared to P-INF (P < 0.001). Concerning pain of injection, patients rated IANB to be more painful (P = 0.039). Second injections were significantly more often necessary for P-INF (P = 0.006) whereas duration until onset of action as well as the duration of local numbness were found to be equal. CONCLUSIONS: For anesthetic efficacy as well as anesthetic success, block anesthesia of the inferior alveolar nerve (IANB) turned out to be more proficient to local infiltration via special delivering system with a special technique. CLINICAL RELEVANCE: Infiltration, even when performed with 4% articaine and a pressure syringe system, is not a suitable method of anesthesia in the posterior mandible. PMID- 29043509 TI - Solid-State Heating Synthesis of Poly (3,4-Ethylenedioxythiophene)/Gold/Graphene Composite and Its Application for Amperometric Determination of Nitrite and Iodate. AB - A ternary composite of poly (3,4-ethylenedioxythiophene)/gold/graphene (PEDOT/Au/GO) for promising electrochemical sensor was synthesized by solid-state heating method. The interaction between the PEDOT, Au, and GO explored for detection of nitrite and iodate. It was found that the PEDOT/Au/GO composite had shale-like morphology with a uniform distribution of gold nanoparticles. Electrochemical experiments showed that the PEDOT/Au/GO composite modified electrode exhibited good electrocatalytic activity toward determination of iodate. The amperometric experiments at the PEDOT/Au/GO/GCE revealed that a good linear relationship existed between peak current and the concentration in the range of 100-1000 MUM with the detection of 0.53 and 0.62 MUM (S/N = 3) for nitrite and iodate, respectively. Moreover, the current response of PEDOT/Au/GO/GCE for nitrite and iodate at 10 MUM was up to 9.59 and 11.47 MUA, respectively. Mechanisms of the direct electron transfer between ion(nitrite or iodate)and the PEDOT/Au/GO composite. PMID- 29043508 TI - The role of PI3Kalpha isoform in cardioprotection. AB - Ischemic preconditioning (IPC) limits myocardial infarct size through the activation of the PI3K-Akt signal cascade; however, little is known about the roles of individual PI3K isoforms in cardioprotection. We aimed, therefore, to elucidate the role of the PI3Kalpha isoform in cardioprotection Pharmacological PI3Kalpha inhibition was assessed in isolated-perfused mouse hearts subjected to ischemia/reperfusion injury (IRI), either during the IPC procedure or at reperfusion. PI3Kalpha inhibition abrogated the IPC-induced protective effect at reperfusion, but not when given only during the IPC protocol. These results were confirmed in an in vivo model. Moreover, pharmacological PI3Kalpha activation by insulin at reperfusion was sufficient to confer cardioprotection against IRI. In addition, PI3Kalpha was shown to be expressed and activated in mouse cardiomyocytes, mouse cardiac endothelial cells, as well as in mouse and human heart tissue. Furthermore, PI3Kalpha was shown to mediate its effect though the inhibition of mitochondrial permeability transition pore opening. In conclusion, PI3Kalpha activity is required during the early reperfusion phase to reduce myocardial infarct size. This suggests that strategies specifically enhancing the alpha isoform of PI3K at reperfusion promote tissue salvage and as such, and could provide a direct target for clinical treatment of IRI. PMID- 29043511 TI - Implication of decreased serum complement 3 in patients with diabetic nephropathy. AB - AIMS: The serum complement 3 (C3) level was reduced in many patients with type 2 diabetes mellitus (T2DM) and diabetic nephropathy (DN). However, the clinical implications of such change are still less understood. This study was aimed to explore the association between C3 level and the baseline clinicopathological characteristics and the prognosis of T2DM patients with DN. METHODS: A total of 171 T2DM patients with biopsy-proven DN who received follow-up for at least 1 year were recruited. The patients were divided into two groups based on the C3 level: decreased C3 group: < 90 mg/dl (n = 75) and normal C3 group: >= 90 mg/dl (n = 96). Renal outcomes were defined by progression to end-stage renal disease (ESRD) or doubling of serum creatinine (D-SCr) level. The influence of serum C3 level on renal outcomes was estimated using Cox regression. RESULTS: The patients with decreased C3 level had more severe renal insufficiency and glomerular lesions than those in the normal C3 group. During a follow-up period (12-78 months), 51 patients with decreased C3 levels (68.0%) and 36 individuals with normal C3 levels (37.5%) reached the endpoint. The univariate Cox regression indicated that patients in the decreased C3 group had a higher rate of the renal outcomes than patients in the normal C3 group (HR 1.897, 95% CI 1.235-2.913, p = 0.003). But the multivariate COX analysis indicated that the C3 level was not an independent risk factor for progression to ESRD and/or D-SCr (HR 1.389, 95% CI 0.847-2.278, p = 0.193) when adjusting for important clinical variables and pathological findings. CONCLUSIONS: Decreased serum C3 level was significantly associated with more severe renal insufficiency, higher glomerular grading and poor renal outcomes, though it failed to be an independent risk factor in T2DM patients with DN. PMID- 29043512 TI - Comparisons of Perceived Training Doses in Champion Collegiate-Level Male and Female Cross-country Runners and Coaches over the Course of a Competitive Season. AB - BACKGROUND: Session rating of perceived exertion (sRPE) is a practical tool for coaches to assess internal training load of their athletes. In a sport like cross country running, that is individual in nature, but has a team training and competition component, information about the association between external and internal load is lacking. Furthermore, there is a need for studies that examine perception of training doses across multiple training cycles including the competitive season as well as between male and female athletes. METHODS: Session RPE, duration, and training load (TLRPE = sRPE * duration) of 25 highly trained male and female cross-country runners and their coaches were recorded for every training session (110 days) throughout a collegiate cross-country season. Intensity (sRPE), duration, and TLRPE were compared between coaches and runners by gender separately. Training sessions were also analyzed by those intended by the coaches to be easy, moderate, and hard as well as by training period. RESULTS: Data from 3024 training sessions were collected, 62% of which were considered "easy," 18% "moderate," and 20% "hard." Men and women rated coach intended easy sessions significantly harder during each month of the season (effect size (ES) > 2.9, p < 0.0001). Men rated moderate intensity sessions significantly higher than coaches (ES >= 1.0, p <= 0.002), whereas females rated hard intensity sessions significantly lower than coaches (ES > 0.5, p < 0.008). There was no difference between males and coach's hard sessions (ES < 0.07, p > 0.05) or females and coach's moderate sessions (ES < 0.18, p > 0.05). Training intensity and TLRPE tended to increase throughout the season (p > 0.05), with a significant increase in moderate and hard intensity sessions in the last training period (p < 0.001). CONCLUSIONS: The results indicate the male and female cross country runners tend to regress to moderate intensity training throughout the cross-country season. Given the success of the athletes in this study, these results show how a simple system for monitoring training such as the sRPE method may improve control of training variables and provide a useful tool for coaches to evaluate training load placed on athletes in a simple, responsive way. PMID- 29043510 TI - Taurine as a water structure breaker and protein stabilizer. AB - The enhancing effect on the water structure has been confirmed for most of the osmolytes exhibiting both stabilizing and destabilizing properties in regard to proteins. The presented work concerns osmolytes, which should be classified as "structure breaking" solutes: taurine and N,N,N-trimethyltaurine (TMT). Here, we combine FTIR spectroscopy, DSC calorimetry and DFT calculations to gain an insight into the interactions between osmolytes and two proteins: lysozyme and ubiquitin. Despite high structural similarity, both osmolytes exert different influence on protein stability: taurine is a stabilizer, TMT is a denaturant. We show also that taurine amino group interacts directly with the side chains of proteins, whereas TMT does not interact with proteins at all. Although two solutes weaken on average the structure of the surrounding water, their hydration spheres are different. Taurine is surrounded by two populations of water molecules: bonded with weak H-bonds around sulfonate group, and strongly bonded around amino group. The strong hydrogen-bonded network of water molecules around the amino group of taurine further improves properties of enhanced protein hydration sphere and stabilizes the native protein form. Direct interactions of this group with surface side chains provide a proper orientation of taurine and prevents the [Formula: see text] group from negative influence. The weakened [Formula: see text] hydration sphere of TMT breaks up the hydrogen-bonded network of water around the protein and destabilizes it. However, TMT at low concentration stabilize both proteins to a small extent. This effect can be attributed to an actual osmophobic effect which is overcome if the concentration increases. PMID- 29043513 TI - Highly Enhanced H2 Sensing Performance of Few-Layer MoS2/SiO2/Si Heterojunctions by Surface Decoration of Pd Nanoparticles. AB - A novel few-layer MoS2/SiO2/Si heterojunction is fabricated via DC magnetron sputtering technique, and Pd nanoparticles are further synthesized on the device surface. The results demonstrate that the fabricated sensor exhibits highly enhanced responses to H2 at room temperature due to the decoration of Pd nanoparticles. For example, the Pd-decorated MoS2/SiO2/Si heterojunction shows an excellent response of 9.2 * 103% to H2, which is much higher than the values for the Pd/SiO2/Si and MoS2/SiO2/Si heterojunctions. In addition, the H2 sensing properties of the fabricated heterojunction are dependent largely on the thickness of the Pd-nanoparticle layer and there is an optimized Pd thickness for the device to achieve the best sensing characteristics. Based on the microstructure characterization and electrical measurements, the sensing mechanisms of the Pd-decorated MoS2/SiO2/Si heterojunction are proposed. These results indicate that the Pd decoration of few-layer MoS2/SiO2/Si heterojunctions presents an effective strategy for the scalable fabrication of high-performance H2 sensors. PMID- 29043515 TI - The 2018 International Workshop on Statistical Genetic Methods for Human Complex Traits : (Formerly the 'Methodology of Twin and Family Studies Introductory Workshop'): March 5th-March 9th, 2018. PMID- 29043514 TI - Efficacy of a triplet and doublet-based chemotherapy as first-line therapy in patients with HER2-negative metastatic gastric cancer: a retrospective analysis from the clinical practice. AB - : The best choice of chemotherapy regimen for patients with metastatic gastric cancer is still debated. Although several studies support a superior efficacy of a triplet chemotherapy regimen over a doublet-based regimen, the magnitude of this benefit appears small and accompanied by an increased toxicity. Based on this background, we evaluated the outcome of patients with HER2-negative metastatic gastric cancer (mGC) who received in the clinical practice a triplet or doublet regimen as first-line therapy. A total of 165 patients (pts) with HER2 negative mGC treated outside of clinical trials at our department with FOLFOX-4 or ECX from 2012 and 2015 were included in our retrospective analysis: FOLFOX-4: 86 pts; ECX: 79 pts. Median progression-free survival (PFS) was 5.1 months for FOLFOX-4 and 5.6 months for ECX regimen, respectively. Median overall survival (OS) was 10.3 months for FOLFOX-4 and 10.9 months for ECX regimens. TOXICITY: grade 3-4 vomiting (12.6%), neutropenia (31.6%), mucositis (11.3%) and fatigue (22.7%) occurred more frequently in ECX regimen, while grade 3-4 peripheral neuropathy was more common with FOLFOX-4 (19.7%). Both evaluated regimens are active and safe in the palliation of HER2-negative mGC in the first-line setting: Three-drug chemotherapy regimen appear more active but offer only a slight improvement in OS with an increased G3-G4 toxicity. Our data suggest that a doublet therapy should be preferred in the clinical practice, preferentially reserving a three-drug combination to pts with bulky disease and/or to pts with initially unresectable locally advanced disease. PMID- 29043517 TI - Awards Presented at the 47th Annual Meeting of the BEHAVIOR GENETICS ASSOCIATION : Thursday, July 1st, Oslo, Norway. PMID- 29043516 TI - Minutes of the Annual Business Meeting of the Members of the Behavior Genetics Association : Wednesday, June 30, 2017, 12:00-1:30 pm Oslo, Norway. PMID- 29043518 TI - Referees for Volume 47. PMID- 29043519 TI - Announcement of the Fulker Award for a Paper Published in Behavior Genetics, Volume 46, 2016. PMID- 29043520 TI - An Extended Twin-Pedigree Study of Neuroticism in the Netherlands Twin Register. AB - For the participants in the Netherlands Twin Register (NTR) we constructed the extended pedigrees which specify all relations among nuclear and larger twin families in the register. A total of 253,015 subjects from 58,645 families were linked to each other, to the degree that we had information on the relations among participants. We describe the algorithm that was applied to construct the pedigrees. For > 30,000 adolescent and adult NTR participants data were available on harmonized neuroticism scores. We analyzed these data in the Mendel software package (Lange et al., Bioinformatics 29(12):1568-1570, 2013) to estimate the contributions of additive and non-additive genetic factors. In contrast to much of the earlier work based on twin data rather than on extended pedigrees, we could also estimate the contribution of shared household effects in the presence of non-additive genetic factors. The estimated broad-sense heritability of neuroticism was 47%, with almost equal contributions of additive and non-additive (dominance) genetic factors. A shared household effect explained 13% and unique environmental factors explained the remaining 40% of the variance in neuroticism. PMID- 29043521 TI - Initiation of antihypertensive monotherapy and incident fractures among Medicare beneficiaries. AB - BACKGROUND: Research suggests antihypertensive medications are associated with fractures in older adults, however results are inconsistent and few have examined how the association varies over time. We sought to examine the association between antihypertensive class and incident non-vertebral fractures among older adults initiating monotherapy according to time since initiation. METHODS: We used a new-user cohort design to identify Medicare beneficiaries (>= 65 years of age) initiating antihypertensive monotherapy during 2008-2011 using a 20% random sample of Fee-For-Service Medicare beneficiaries enrolled in parts A (inpatient services), B (outpatient services), and D (prescription medication) coverage. Starting the day after the initial antihypertensive prescription, we followed beneficiaries for incident non-vertebral fractures. We used multinomial logistic regression models to estimate propensity scores for initiating each antihypertensive drug class. Using these propensity scores, we weighted beneficiaries to achieve the same baseline covariate distribution as beneficiaries initiating with angiotensin-converting enzyme inhibitors. Lastly, we used weighted Cox proportional hazard models to estimate hazard ratios (HRs) of having an incident fractures according to antihypertensive class and time since initiation. RESULTS: During 2008-2011, 122,629 Medicare beneficiaries initiated antihypertensive monotherapy (mean age 75, 61% women, 86% White). Fracture rates varied according to days since initiation and antihypertensive class. Beneficiaries initiating with thiazides had the highest fracture rate in the first 14 days following initiation (438 per 10,000 person-years, 95% confidence interval (CI): 294-628; HR: 1.40, 0.78-2.52). However, beneficiaries initiating with calcium channel blockers had the highest fracture rate during the 15-365 days after initiation (435 per 10,000 person-years, 95% CI: 404-468; HR: 1.11, 1.00-1.24). Beneficiaries initiating with angiotensin-receptor blockers had the lowest fracture rates during the initial 14 days (333 per 10,000 person years, 190-546, HR: 0.92, 0.49-1.75) and during 15-365 days after initiation (321 per 10,000 person-years, 287-358, HR: 0.96, 0.84-1.09). CONCLUSION: The association between antihypertensives and fractures varied according to class and time since initiation. Results suggest that when deciding upon antihypertensive therapy, clinicians may want to consider possible fracture risks when choosing between antihypertensive drug classes. PMID- 29043522 TI - Cryovial monolayer vitrification for ovarian tissue cryopreservation. AB - The cryopreservation of ovarian tissue has been proved to be effective for fertility preservation. To find a better cryopreservation method, we tested the efficacy of cryovial monolayer vitrification method in comparison with that of needle immersed vitrification (NIV). Ovaries from 10 female kunming mice aged 6-8 weeks were cut into pieces and allocated into group A (cryovial monolayer vitrification method), group B (NIV method) and group C (fresh control). In group A, pieces of ovarian tissue were layered around the inner wall of cryovial as a monolayer; and in group B, pieces of ovarian tissue were pierced with a needle. Other than the difference in the carrier for ovarian tissue, the cryoprotectants and the protocols in group A and B were the same. The viability and in vitro growth potential of the follicles after warming in groups A and B were evaluated respectively and compared with those of fresh control. The results showed that the viabilities of the follicles were not statistically different among three groups. The average diameter of follicles did not show statistically significant difference among three groups before culture and between group A and group B after culture (p > 0.05), but demonstrated statistically significant difference between group A and group C (p < 0.01), group B and group C (p < 0.01), respectively. In the procedure of loading ovarian tissue onto carriers, group A took less time compared with group B. In addition, the small pieces and debris which were harder or impossible to be pierced with needle in group B could be easily layered onto the inner wall of the cryovial in group A. Hence the follicles existed within the small pieces and debris of the ovarian tissue could also be cryopreserved. It is concluded that, in cryopreserving both viability and growth potential of follicles, the cryovial monolayer vitrification method is comparable with NIV method but with higher efficiency. PMID- 29043523 TI - Analysis of potential factors affecting allografts contamination at retrieval. AB - The microbiological contamination of retrieved tissues has become a very important topic and it is a critical aspect in the safety of allografts, especially from multi-tissue donors whose tissues are frequently contaminated as a consequence of retrieval. We analysed a total of 10,107 tissues, 8178 musculoskeletal and 1929 cardiovascular tissues, retrieved from 978 multi-tissue donors. Of these, 159 heart-beating donors (HBD) were also organ donors, while the remaining 819 non-heart-beating donors (NHBD) were tissue donors only. A multivariate logistic model was used to determine the factors affecting contamination risk during retrieval. In the model, the dependent variable was the presence/absence of contamination while the covariates included were: gender, type of donor, age of donor, cause of death, previous skin donation, cadaver time, number of people attending the retrieval, number of tissues retrieved. Moreover, a second log-linear model was used to determine the number of strains isolated per tissue. Tissue contamination was statistically correlated with gender, type of donor, cadaver time, number of people attending the retrieval and season. In conclusion, to minimize the risk of bacterial contamination, aseptic techniques should be used at retrieval, with the number of retrieval team members kept to a minimum. In addition, cadaver time should be as short as possible and the donor should be refrigerated within a few hours after death. PMID- 29043524 TI - Improving the success rate of human corneal endothelial cell cultures from single donor corneas with stabilization medium. AB - Main objective of this study was to improve the success rate of human corneal endothelial cell (hCEC) cultures from single donor corneas. We could show that the use of stabilization medium prior to cell isolation may have a positive effect on the success rate of hCEC cultures from single research-grade donor corneas by allowing growth of otherwise possibly not successful cultures and by improving their proliferative rate. hCEC were obtained from corneo-scleral rims of 7 discarded human research-grade cornea pairs. The Descemet membrane endothelium (DM-EC) sheets of each pair were assigned to 2 experimental conditions: (1) immediate cell isolation after peeling, and (2) storage of the DM EC sheet in a growth factor-depleted culture medium (i.e. stabilization medium) for up to 6 days prior to cell isolation. hCEC isolated by enzymatic digestion were then induced to proliferate on pre-coated culture plates. The success rate of primary cultures established from single donor corneas were higher for DM-EC sheets kept in stabilization medium before cell isolation. All cultures (7/7) initiated from stabilized DM-EC sheets were able to proliferate up to the third passage, while only 4 out of 7 cultures initiated from freshly peeled DM-EC sheets reached the third passage. In addition, for the 4 successful paired cultures we observed a faster growth rate if the DM-EC sheet was pre-stabilized prior to cell isolation (13.8 +/- 1.8 vs 18.5 +/- 1.5 days, P < 0.05). Expression of the phenotypical markers Na+/K+-ATPase and ZO-1 could be shown for the stabilized cultures that successfully proliferated up to the third passage. PMID- 29043525 TI - Long-term Follow-up and Post-relapse Outcome of Patients with Localized Retroperitoneal Sarcoma Treated in the Italian Sarcoma Group-Soft Tissue Sarcoma (ISG-STS) Protocol 0303. AB - BACKGROUND: This study was designed to assess patterns of recurrence and long term outcomes of patients undergoing surgery for localized retroperitoneal sarcoma (RPS) after neoadjuvant high dose long-infusion ifosfamide (HLI) and radiotherapy (RT). METHODS: Patients received three cycles of HLI (14 g/m2). RT was started in combination with II cycle up to a total dose of 50.4 Gy. Surgery was scheduled 4-6 weeks after the end of RT. The primary endpoint was relapse free survival (RFS) after surgery. Secondary endpoints were overall survival (OS), crude cumulative incidence of local recurrence (CCI-LR), and distant metastases (CCI-DM). For patients who relapsed, progression-free survival (PFS) and post-relapse OS were estimated. The trial was registered with ITASARC_*II_2004_003. RESULTS: Between 2003 and 2010, 83 patients were recruited. At a median follow-up of 91.7 months, 42 (56%) of 75 operated patients developed LR (n = 27) or DM (n = 10) or both LR and DM (n = 5) relapse. Seven-year RFS was 46.6% [95% confidence interval (CI) 29.6-52.4]. Thirty-two patients died. Seven year OS rate was 63.2% (95% CI 42.7-66.0). The corresponding CCI of LR and DM were 37.4% [standard error (SE) 5.5%] and 20.0% (SE 12.6%), respectively. The only factor significantly associated with LR was FNCLCC grading, whereas histological subtype resulted associated with DM. At recurrence, 24 patients (57%) underwent surgery. Two-year post-relapse PFS and OS rates for patients developing LR or DM were 14.8, 41.0, 27.3, and 63.6%, respectively. CONCLUSIONS: LR after neoadjuvant CT-RT for RPS were predominantly infield. While almost one half of relapsed patients underwent further surgery, prognosis was poor. PMID- 29043526 TI - Chemoradiation Therapy for Unresected Extrahepatic Cholangiocarcinoma: A Propensity Score-Matched Analysis. AB - BACKGROUND: Unresected extrahepatic cholangiocarcinoma (uEHCC) remains a deadly disease. Guidelines for uEHCC recommend either chemotherapy alone (CT) or chemoradiotherapy (CRT). This study used the National Cancer Database (NCDB) to compare outcomes for patients treated with CT and those who underwent CRT. METHODS: Patients with initially diagnosed non-metastatic uEHCC from 2004 to 2014 were identified. Using Chi square analysis, patients who underwent CT were compared with those who received CRT. Uni- and multivariate Cox regression analyses were used to compare characteristics related to survival. Propensity score matching and shared frailty analysis were undertaken to correct for baseline differences between the two groups. Additional analyses were performed to compare survival for the minority of patients who underwent surgery and advanced-stage patients. RESULTS: The study identified 2996 patients with uEHCC. Chemoradiation was associated with better survival (median survival [MS], 14.5 months; hazard ratio [HR] 0.84; p < 0.001) than CT alone (MS, 12.6 months). Induction of CT before CRT was associated with a trend toward decreased risk of death compared with concurrent CRT (HR 0.81; p = 0.051). For the patients able to undergo surgery after initial treatment, MS was 24.5 months (HR 0.38; p < 0.001) versus 12.2 months for those who had no surgery. For these patients, CRT also was associated with better survival (MS, 31.2 months; HR 0.66; p = 0.001) than CT (MS, 22.1 months). Positive margins at surgery yielded survival equivalent to that with no surgery. CONCLUSION: Although CRT may be associated with slightly better survival in uEHCC than CT alone, the majority of the benefit was observed for patients able to undergo eventual surgery. PMID- 29043527 TI - Na4Mn9O18/Carbon Nanotube Composite as a High Electrochemical Performance Material for Aqueous Sodium-Ion Batteries. AB - The aqueous sodium-ion battery (ASIB) is one of the promising new energy storage systems owing to the abundant resources of sodium as well as efficiency and safety of electrolyte. Herein, we report an ASIB system with Na4Mn9O18/carbon nanotube (NMO/CNT) as cathode, metal Zn as anode and a novel Na+/Zn2+ mixed ion as electrolyte. The NMO/CNT with microspherical structure is prepared by a simple spray-drying method. The prepared battery delivers a high reversible specific capacity and stable cyclability. Furthermore, the battery displays a stable reversible discharge capacity of 53.2 mAh g-1 even at a high current rate of 4 C after 150 cycles. Our results confirm that the NMO/CNT composite is a promising electrode cathode material for ASIBs. PMID- 29043528 TI - Comparison of Shallow and Deep Learning Methods on Classifying the Regional Pattern of Diffuse Lung Disease. AB - This study aimed to compare shallow and deep learning of classifying the patterns of interstitial lung diseases (ILDs). Using high-resolution computed tomography images, two experienced radiologists marked 1200 regions of interest (ROIs), in which 600 ROIs were each acquired using a GE or Siemens scanner and each group of 600 ROIs consisted of 100 ROIs for subregions that included normal and five regional pulmonary disease patterns (ground-glass opacity, consolidation, reticular opacity, emphysema, and honeycombing). We employed the convolution neural network (CNN) with six learnable layers that consisted of four convolution layers and two fully connected layers. The classification results were compared with the results classified by a shallow learning of a support vector machine (SVM). The CNN classifier showed significantly better performance for accuracy compared with that of the SVM classifier by 6-9%. As the convolution layer increases, the classification accuracy of the CNN showed better performance from 81.27 to 95.12%. Especially in the cases showing pathological ambiguity such as between normal and emphysema cases or between honeycombing and reticular opacity cases, the increment of the convolution layer greatly drops the misclassification rate between each case. Conclusively, the CNN classifier showed significantly greater accuracy than the SVM classifier, and the results implied structural characteristics that are inherent to the specific ILD patterns. PMID- 29043529 TI - Development and validation of a risk assessment tool for gastric cancer in a general Japanese population. AB - BACKGROUND: There have been very few reports of risk score models for the development of gastric cancer. The aim of this study was to develop and validate a risk assessment tool for discerning future gastric cancer risk in Japanese. METHODS: A total of 2444 subjects aged 40 years or over were followed up for 14 years from 1988 (derivation cohort), and 3204 subjects of the same age group were followed up for 5 years from 2002 (validation cohort). The weighting (risk score) of each risk factor for predicting future gastric cancer in the risk assessment tool was determined based on the coefficients of a Cox proportional hazards model in the derivation cohort. The goodness of fit of the established risk assessment tool was assessed using the c-statistic and the Hosmer-Lemeshow test in the validation cohort. RESULTS: During the follow-up, gastric cancer developed in 90 subjects in the derivation cohort and 35 subjects in the validation cohort. In the derivation cohort, the risk prediction model for gastric cancer was established using significant risk factors: age, sex, the combination of Helicobacter pylori antibody and pepsinogen status, hemoglobin A1c level, and smoking status. The incidence of gastric cancer increased significantly as the sum of risk scores increased (P trend < 0.001). The risk assessment tool was validated internally and showed good discrimination (c-statistic = 0.76) and calibration (Hosmer-Lemeshow test P = 0.43) in the validation cohort. CONCLUSIONS: We developed a risk assessment tool for gastric cancer that provides a useful guide for stratifying an individual's risk of future gastric cancer. PMID- 29043530 TI - Cox2A/Cox2B subunit interaction in Polytomella sp. cytochrome c oxidase: role of the Cox2B subunit extension. AB - Subunit II of cytochrome c oxidase (Cox2) is usually encoded in the mitochondrial genome, synthesized in the organelle, inserted co-translationally into the inner mitochondrial membrane, and assembled into the respiratory complex. In chlorophycean algae however, the cox2 gene was split into the cox2a and cox2b genes, and in some algal species like Chlamydomonas reinhardtii and Polytomella sp. both fragmented genes migrated to the nucleus. The corresponding Cox2A and Cox2B subunits are imported into mitochondria forming a heterodimeric Cox2 subunit. When comparing the sequences of chlorophycean Cox2A and Cox2B proteins with orthodox Cox2 subunits, a C-terminal extension in Cox2A and an N-terminal extension in Cox2B were identified. It was proposed that these extensions favor the Cox2A/Cox2B interaction. In vitro studies carried out in this work suggest that the removal of the Cox2B extension only partially affects binding of Cox2B to Cox2A. We conclude that this extension is dispensable, but when present it weakly reinforces the Cox2A/Cox2B interaction. PMID- 29043531 TI - Desmoplastic Small Round Cell Tumor Presenting as an Ocular Mass: Unusual Localization and Remarkable Surgical Approach. AB - Desmoplastic small round cell tumor (DSRCT) is a rare tumor that was first described by Gerald and Rosai in 1989 as a mesenchymal entity. This tumor has a unique translocation t (11:22) (p:13, q:12) resulting in EWS/WT1 gene fusion that is diagnostic for DSCRT. The overall prognosis for desmoplastic small round cell tumor remains extremely poor, with reported rates of death as high as 90%. Although the majority of patients undergo chemotherapy following surgery, the prognosis has been shown to be independent of whether the surgical process preceded or followed chemotherapy. In this review, we provide insights for the management of DSCRT that requires aggressive multimodality therapy. PMID- 29043532 TI - Changes observed in urine microbiology following replacement of long-term urinary catheters: need to modify UTI guidelines in the UK? AB - AIMS: Bacteria adherent to long-term urinary catheters (LTUC) may give misleading urine culture results. Guidelines in the USA recommend changing LTUC before urine collection to diagnose UTI and before commencing appropriate antimicrobial treatment. However, in the UK there is no such guidance. In this study, we evaluated differences in urine cultures before and after changing LTUC. METHODS: In a prospective study in a UK urology department, we made a quantitative and qualitative comparison between paired urines collected before and after catheter change in patients with LTUC. We measured culture growth on a four-point ordinal scale as nil, scanty (< 107 cfu/L), moderate (107-108 cfu/L) or heavy (> 108 cfu/L) and recorded the range of bacterial species isolated. Statistical analysis was by Wilcoxon matched-pairs test. RESULTS: Sixty-six patients (55 males, 11 females) took part in the study. Urines with no growth increased from 7/66 (11%) before change of catheter to 21/66(32%) after change of catheter. Cultures reported as heavy growth (> 108 cfu/L) reduced from 48/66 (73%) to 25/66 (38%) after catheter change (p < 0.001). Except for Pseudomonas spp., other organisms were isolated less frequently after catheter change. No Proteus spp. was isolated after catheter change. CONCLUSIONS: This study confirms that failure to change long-term catheters before collecting urine for culture may give misleading results. In the interest of accurate diagnosis and antimicrobial stewardship, UK guidelines should recommend changing long-term urinary catheters before collection of urine for culture. PMID- 29043533 TI - Corneal Cross-Linking Has No Effect on Matrix Metalloproteinase 9 and 13 Levels During Fungal Keratitis on the Early Stage. AB - The aim of our study was to investigate matrix metalloproteinases, MMP-9 and MMP 13 levels, in the rabbit model of Fusarium and Candida keratitis treated by corneal cross-linking (PACK-CXL). Rabbit corneas were inoculated with fungal inoculum for keratitis. Each group divided into four subgroups, including un treated group, PACK-CXL group, voriconazole group and PACK-CXL plus voriconazole group. PACK-CXL was applied with 0.25% riboflavin in accelerated Dresden protocol, and 0.1% voriconazole drops were administered. All corneal buttons excised at tenth day after ophthalmological examination. Fungal cell counts and Scheiber scores were determined in all groups. Corneal tissue MMP mRNA levels were evaluated quantitative reverse transcriptase PCR. The difference in MMP-9 and MMP-13 levels at all groups was not statistically significant (p > 0.05). PACK-CXL with 0.25% riboflavin either alone or combined with antifungal drops was unable to provide decline in inflammatory findings in both macroscopic and microscopic levels similar to medical antifungal treatment. PMID- 29043534 TI - Male-Produced Aggregation Pheromone of Coffee Bean Weevil, Araecerus fasciculatus. AB - The coffee bean weevil (CBW), Araecerus fasciculatus (De Geer, 1775), is a cosmopolitan stored-product pest, especially in tropical and subtropical areas. Previous reports showed evidence for aggregation behavior of CBW and this study aimed to identify and evaluate the aggregation pheromone of this pest. Whole-body solvent extractions were analyzed by coupled gas chromatography-mass spectrometry and comparison of male and female extracts showed a male-specific compound which was identified as squalene, 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22 tetracosahexaene. This compound was shown to attract male and female CBW in Y tube olfactometer and storage trap assays. The longevity of septum lures was also evaluated in a warehouse. Squalene could be useful in monitoring and controlling this pest. PMID- 29043536 TI - Refining Risk for Deep Vein Thrombosis in Hospitalized Patients. PMID- 29043535 TI - Towards multilevel mental stress assessment using SVM with ECOC: an EEG approach. AB - Mental stress has been identified as one of the major contributing factors that leads to various diseases such as heart attack, depression, and stroke. To avoid this, stress quantification is important for clinical intervention and disease prevention. This study aims to investigate the feasibility of exploiting electroencephalography (EEG) signals to discriminate between different stress levels. We propose a new assessment protocol whereby the stress level is represented by the complexity of mental arithmetic (MA) task for example, at three levels of difficulty, and the stressors are time pressure and negative feedback. Using 18-male subjects, the experimental results showed that there were significant differences in EEG response between the control and stress conditions at different levels of MA task with p values < 0.001. Furthermore, we found a significant reduction in alpha rhythm power from one stress level to another level, p values < 0.05. In comparison, results from self-reporting questionnaire NASA-TLX approach showed no significant differences between stress levels. In addition, we developed a discriminant analysis method based on multiclass support vector machine (SVM) with error-correcting output code (ECOC). Different stress levels were detected with an average classification accuracy of 94.79%. The lateral index (LI) results further showed dominant right prefrontal cortex (PFC) to mental stress (reduced alpha rhythm). The study demonstrated the feasibility of using EEG in classifying multilevel mental stress and reported alpha rhythm power at right prefrontal cortex as a suitable index. PMID- 29043537 TI - Missed Doses of Venous Thromboembolism (VTE) Prophylaxis at Community Hospitals: Cause for Alarm. PMID- 29043538 TI - Venous thromboembolism prophylaxis in medically ill patients: a mixed treatment comparison meta-analysis. AB - The American College of Chest Physicians guidelines recommend unfractionated heparin (UFH), low molecular weight heparins (LMWHs) or fondaparinux for prevention of venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE), in medically-ill patients. Direct oral anticoagulants (DOACs) have been evaluated relative to enoxaparin for VTE prophylaxis though head-to-head comparisons of these agents are lacking. Therefore, we conducted a mixed treatment comparisons meta-analysis to evaluate the safety and efficacy of established treatments and DOACs for VTE prophylaxis in medically-ill patients. A comprehensive literature search was conducted to identify randomized trials evaluating UFH, LMWHs or DOACS for the prevention of VTE in medically ill patients. Articles were retrieved and cross-referenced for additional trials, evaluated and entered into ADDIS (version 1.16.6) to generate direct and indirect treatment comparisons for VTE, DVT, PE, death from any cause, and bleeding. Ten articles were included and eight anticoagulants were evaluated in a treatment network representing data on 28,382 patients. We found each treatment had similar efficacy in preventing VTE, DVT, PE, death from any cause and each had similar risk of minor and major bleeding. Overall, placebo was associated with more VTE and DVT events compared to LMWHs and DOACs. We found that UFH, LMWHs and DOACs are comparable in preventing VTE, DVT, PE, and death from any cause and in association with minor and major bleeding. Anticoagulant selection for VTE prophylaxis in medically-ill patients should be individualized by patient characteristics, risks and preferences along with specific pharmacokinetic and pharmacodynamic considerations. PMID- 29043539 TI - Introduction: light harvesting for photosynthesis. PMID- 29043540 TI - Between quality of life and hope. Attitudes and beliefs of Muslim women toward withholding and withdrawing life-sustaining treatments. AB - The technological advances in medicine, including prolongation of life, have constituted several dilemmas at the end of life. In the context of the Belgian debates on end-of-life care, the views of Muslim women remain understudied. The aim of this article is fourfold. First, we seek to describe the beliefs and attitudes of middle-aged and elderly Moroccan Muslim women toward withholding and withdrawing life-sustaining treatments. Second, we aim to identify whether differences are observable among middle-aged and elderly women's attitudes toward withholding and withdrawing life-sustaining treatments. Third, we aim to explore the role of religion in their attitudes. Fourth, we seek to document how our results are related to normative Islamic literature. Qualitative empirical research was conducted with a sample of middle-aged and elderly Moroccan Muslim women (n = 30) living in Antwerp (Belgium) and with experts in the field (n = 15). We found an unconditional belief in God's sovereign power over the domain of life and death (cf. determined lifespan by God) and in God's almightiness (cf. belief in a miracle). However, we also found a tolerant attitude, mainly among our middle-aged participants, toward withholding and withdrawing (treatment) based on theological, eschatological, financial and quality of life arguments. Our study reveals that religious beliefs and worldviews have a great impact on the ethical attitudes toward end-of-life issues. We found divergent positions toward withholding and withdrawing life-sustaining treatments, reflecting the lines of reasoning found in normative Islamic literature. In our interviews, theological and eschatological notions emerged as well as financial and quality of life arguments. PMID- 29043541 TI - An Unusual Progression of Signet-Ring Cell Carcinoma of the Appendix in a Caucasian Woman. PMID- 29043542 TI - Undergraduate basic surgical skills education: impact on attitudes to a career in surgery and surgical skills acquisition. AB - INTRODUCTION: Basic surgical skills modules in medical education are effective in teaching skills and increasing confidence among students approaching surgery. However, these modules are not delivered universally and their effect on the professional development of graduates has not been established. We aimed to assess the impact of a 10-week basic surgical skills module on attitudes and technical skills of first year medical students compared to interns. METHODS: Eighteen students participated and were assessed using a 4-part questionnaire. Technical skills were assessed by observing students perform a basic interrupted suture, using the objective structured assessment of technical skills (OSATS) tool. Fourteen interns were recruited. RESULTS: Students were more confident in surgical scrubbing (mean score 4.0 vs. 2.86, p = 0.001), and performing a basic suture (4.05 vs. 1.93, p = 0.000), more enthusiastic about assisting with an operation (4.5 vs. 3.0, p = 0.001) and more likely to consider a career in surgery (4.16 vs. 2.28, p = 0.000). Technical skills were greater in the student group (mean score 30.8 vs. 19.6, p = 0.001). Five interns had taken part in surgical skills modules as undergraduates. Their technical skills were significantly higher compared to interns who had not (n = 9) (28.8 vs. 14.5, p = 0.006), and they were more likely to consider a career in surgery (3.6 vs. 1.5, p = 0.036). CONCLUSION: The introduction of surgical skills teaching to the undergraduate medical curriculum has a positive impact on students' attitudes towards surgery and accelerates basic technical skills development. Consideration should be given to development of a standardised undergraduate core curriculum in basic surgical skills teaching. PMID- 29043543 TI - Surgical management of splenic marginal zone lymphoma. AB - OBJECTIVES: Splenic marginal zone lymphoma (SMZL) is a rare indolent B-cell lymphoma with variable prognosis. As a result, there is sparse knowledge on the role of splenectomy and best management approaches. We aim to explore management strategies and outcomes amongst the cohort of SMZL patients at our centre. METHOD: A retrospective review of all splenectomies performed at a tertiary referral unit over a 23-year period was assessed. Immunohistochemical and pathological results of splenic samples, bone marrow biopsies, and peripheral blood were compiled. Operative management, surgical, and survival outcomes were assessed. Prognostic stratifications were applied and survival rates were calculated. RESULTS: Eight cases of SMZL from a database of 693 splenectomies were identified. All patients had intermediate/high-risk disease. All patients underwent splenectomy with one patient receiving preoperative rituximab. All patients had progression-free survival and resolution of disease. CONCLUSION: Based on the data obtained, current practice requires defined guidelines and centralised care. PMID- 29043544 TI - ICP Versus Laser Doppler Cerebrovascular Reactivity Indices to Assess Brain Autoregulatory Capacity. AB - BACKGROUND: To explore the relationship between various autoregulatory indices in order to determine which approximate small vessel/microvascular (MV) autoregulatory capacity most accurately. METHODS: Utilizing a retrospective cohort of traumatic brain injury patients (N = 41) with: transcranial Doppler (TCD), intracranial pressure (ICP) and cortical laser Doppler flowmetry (LDF), we calculated various continuous indices of autoregulation and cerebrovascular responsiveness: A. ICP derived [pressure reactivity index (PRx)-correlation between ICP and mean arterial pressure (MAP), PAx-correlation between pulse amplitude of ICP (AMP) and MAP, RAC-correlation between AMP and cerebral perfusion pressure (CPP)], B. TCD derived (Mx-correlation between mean flow velocity (FVm) and CPP, Mx_a-correlation between FVm and MAP, Sx-correlation between systolic flow velocity (FVs) and CPP, Sx_a-correlation between FVs and MAP, Dx-correlation between diastolic flow index (FVd) and CPP, Dx_a-correlation between FVd and MAP], and LDF derived (Lx-correlation between LDF cerebral blood flow [CBF] and CPP, Lx_a-correlation between LDF-CBF and MAP). We assessed the relationship between these indices via Pearson correlation, Friedman test, principal component analysis (PCA), agglomerative hierarchal clustering (AHC), and k-means cluster analysis (KMCA). RESULTS: LDF-based autoregulatory index (Lx) was most associated with TCD-based Mx/Mx_a and Dx/Dx_a across Pearson correlation, PCA, AHC, and KMCA. Lx was only remotely associated with ICP-based indices (PRx, PAx, RAC). TCD-based Sx/Sx_a was more closely associated with ICP derived PRx, PAx and RAC. This indicates that vascular-derived indices of autoregulatory capacity (i.e., TCD and LDF based) covary, with Sx/Sx_a being the exception, whereas indices of cerebrovascular reactivity derived from pulsatile CBV (i.e., ICP indices) appear to not be closely related to those of vascular origin. CONCLUSIONS: Transcranial Doppler Mx is the most closely associated with LDF-based Lx/Lx_a. Both Sx/Sx-a and the ICP-derived indices appear to be dissociated with LDF-based cerebrovascular reactivity, leaving Mx/Mx-a as a better surrogate for the assessment of cortical small vessel/MV cerebrovascular reactivity. Sx/Sx_a cocluster/covary with ICP-derived indices, as seen in our previous work. PMID- 29043545 TI - Early Brain Injury Associated with Systemic Inflammation After Subarachnoid Hemorrhage. AB - BACKGROUND: Early brain injury (EBI) after aneurysmal subarachnoid hemorrhage (aSAH) is defined as brain injury occurring within 72 h of aneurysmal rupture. Although EBI is the most significant predictor of outcomes after aSAH, its underlying pathophysiology is not well understood. We hypothesize that EBI after aSAH is associated with an increase in peripheral inflammation measured by cytokine expression levels and changes in associations between cytokines. METHODS: aSAH patients were enrolled into a prospective observational study and were assessed for markers of EBI: global cerebral edema (GCE), subarachnoid hemorrhage early brain edema score (SEBES), and Hunt-Hess grade. Serum samples collected at <= 48 h of admission were analyzed using multiplex bead-based assays to determine levels of 13 pro- and anti-inflammatory cytokines. Pairwise correlation coefficients between cytokines were represented as networks. Cytokine levels and differences in correlation networks were compared between EBI groups. RESULTS: Of the 71 patients enrolled in the study, 17 (24%) subjects had GCE, 31 (44%) subjects had SEBES >= 3, and 21 (29%) had HH >= 4. IL-6 was elevated in groups with GCE, SEBES >= 3, and HH >= 4. MIP1beta was independently associated with high-grade SEBES. Correlation network analysis suggests higher systematic inflammation in subjects with SEBES >= 3. CONCLUSIONS: EBI after SAH is associated with increased levels of specific cytokines. Peripheral levels of IL 10, IL-6, and MIP1beta may be important markers of EBI. Investigating systematic correlations in addition to expression levels of individual cytokines may offer deeper insight into the underlying mechanisms related to EBI. PMID- 29043546 TI - Compensatory-Reserve-Weighted Intracranial Pressure and Its Association with Outcome After Traumatic Brain Injury. AB - OBJECTIVE: We introduced 'compensatory-reserve-weighted intracranial pressure (ICP),' named 'weightedICP' for brevity, as a variable that may better describe changes leading to mortality after traumatic brain injury (TBI) over the standard mean ICP. METHODS: ICP was monitored prospectively in over 1023 sedated and ventilated patients. The RAP coefficient (R-correlation, A-amplitude, and P pressure) was calculated as the running correlation coefficient between slow changes in the pulse amplitude of ICP and the mean ICP. RAP has a value of 0 on the linear part of the pressure-volume curve and a value of + 1 on the ascending exponential part. Then, RAP decreases towards zero or even becomes negative when ICP increases further-a phenomenon thought to be related to the critical closing of cerebral vessels. In this study, we investigated a derived variable called weightedICP, calculated as ICP*(1 - RAP). RESULTS: Mortality after TBI was associated with both elevated ICP and weightedICP. Analysis of variance showed higher values of test statistics for weightedICP (K = 93) than for ICP (K = 64) in outcome categorization. Additionally, receiver operator curve analysis indicated greater area under the curve for weightedICP (0.71) than for ICP (0.67) with respect to associated mortality; however, the difference was not statistically significant (p = 0.12). The best threshold (maximizing sensitivity and specificity) was 19.5 mm Hg for mean ICP, and 8 mm Hg for weightedICP. Mortality rate expressed as a function of mean ICP and weightedICP showed an ascending profile in both cases. CONCLUSION: The proposed variable shows a significant association with mortality following head injury. It is sensitive to both the rising absolute ICP and to the critical deterioration of pressure-volume compensation. PMID- 29043547 TI - Age-Related Effects of Bariatric Surgery on Early Atherosclerosis and Cardiovascular Risk Reduction. AB - BACKGROUND: Carotid intima-media thickness (CIMT) is increasingly used as a prognostic indicator for early atherosclerosis and the development of cardiovascular disease. The objective of this study is to assess the exact effects of bariatric surgery on CIMT reduction in different age groups. METHODS: CIMT was measured just proximal to the bifurcation of the carotid artery in 166 patients with mean body mass index of 43.4 kg/m2 before and at 6 and 12 months after bariatric surgery. Preoperative CIMT and Framingham Risk Score (FRS) were compared to measurements at 6 and 12 months, postoperatively. Impact of age on CIMT change and cardiovascular risk reduction was analyzed. RESULTS: Median follow-up was 12 months; 12% were lost to follow-up. Mean CIMT values at 12 months after bariatric surgery were significantly lower compared to baseline (0.619 vs. 0.587 mm, p = 0.005 in women and 0.675 vs. 0.622 mm, p = 0.037 in men, respectively), and these effects were statistically significant in all age groups. The mean reduction of CIMT for patients < 50 years at 12 months was 0.043 mm (- 7.0%), while CIMT was reduced with 0.013 mm for patients >= 50 years (- 1.9%, p = 0.022). At 12 months after bariatric surgery, FRS had decreased with 52% in patients < 50 years as compared with 35% in patients >= 50 years (p = 0.025). CONCLUSIONS: Bariatric surgery resulted in a significant CIMT decrease in patients with morbid obesity in all evaluated age categories. These beneficial effects of bariatric surgery were more pronounced in younger patients, while cardiovascular risk reduction by bariatric surgery appeared inferior in patients of 50 years and older. PMID- 29043548 TI - Comparison of Short-Term Effectiveness and Postoperative Complications: Laparoscopic Gastric Plication vs Laparoscopic Sleeve Gastrectomy. AB - INTRODUCTION: Bariatric surgeries are the only effective long-term treatment in obese patients. The innovation of laparoscopic gastric plication (LGP) raised some questions about its effectiveness compared to traditionally used techniques such as laparoscopic sleeve gastrectomy (LSG). We tried to answer some of these questions. MATERIALS AND METHODS: We investigated 70 patients in a randomized clinical trial (IRCT2013123012294N5) from 2012 to 2015. Thirty-five patients were randomly assigned to each LSG or LGP group, using sealed envelope method. The body mass index (BMI) reduction and the percentage of excess weight loss (%EWL) along with %total body weight loss (%TWL) were primary endpoint and were assessed at follow-up periods. We recorded postoperative complications, as well. RESULTS: Two-year follow-up rate was 100%. There were no statistically significant differences between the two groups in means of preoperative BMI. Also, postoperative follow-ups were not suggestive for a significant difference in BMI (all p values > 0.05). The mean %EWL at follow-ups showed no significant difference at any point, except for 3 and 6 months after surgery (p value = 0.002 and 0.017, respectively). This finding was confirmed by %TWL trend in 12 months after surgery. LSG patients were readmitted more than LGP patients (seven cases vs one case, p value = 0.024). Postoperative complications such as nausea and vomiting, hair loss, iron deficiency, vitamin D deficiency, and cholelithiasis were not different between the two groups. There was one death in the LGP group due to pulmonary thromboembolism. CONCLUSIONS: LGP showed to be efficient regarding %EWL and %TWL reduction in short-term follow-ups with comparable postoperative complications to LSG. PMID- 29043549 TI - Prevalence and Predictors of Gastroesophageal Reflux Disease After Laparoscopic Sleeve Gastrectomy. AB - BACKGROUND AND AIMS: Laparoscopic sleeve gastrectomy (LSG) might be associated with a new onset or worsening of gastroesophageal reflux disease (GERD). We aim to evaluate the prevalence of post-LSG GERD symptoms and its predictors. METHODS: We included patients who underwent primary LSG at a university hospital from 2009 to 2015. We used the GERD-Health-Related Quality of Life (GERD-HRQL) questionnaire and included questions regarding regurgitation to evaluate symptoms before and after LSG; each item was scored from 1 to 5 based on the symptom severity. RESULTS: A total of 213 patients (mean age, 36.08 +/- 10.22 years; 48.36% were men) were included. The mean preoperative body mass index (BMI) was 47.84 kg/m2, mean percent total weight loss was 37.99% (95% CI, 36.64 to 39.34), mean percent excess weight loss was 84.14% (95% CI, 80.91 to 87.36), and the mean percent excess BMI loss was 84.17% (95% CI, 80.94 to 87.41). The mean heartburn score while standing increased (0.71 vs. 1.09, p < 0.01) as well as the score of heartburn requiring a diet change (0.67 vs. 1.16, p < 0.01) post-LSG. The scores for dysphagia, odynophagia, and regurgitation increased. New-onset heartburn was reported in 47.06% of our cohort. Those with high preoperative BMIs were less likely to develop new-onset or worsening symptoms of GERD (odds ratio [OR], 0.97; 95% confidence interval [CI], 0.95-0.99). More severe heartburn symptoms while standing were associated with higher risks of developing or worsening GERD symptoms (OR, 1.22; 95% CI, 1.01-1.47). None of the other variables could predict the development or worsening of the GERD symptoms. CONCLUSION: Symptoms of heartburn and regurgitation are common after LSG; however, none of the variables preoperatively could strongly predict patients who would develop new onset or experience worsening of symptoms postoperatively. PMID- 29043550 TI - Collision of metastatic malignant melanoma and acute myelogenous leukemia in the bone marrow. PMID- 29043552 TI - The future of nuclear cardiac imaging: Reflection and a vision. PMID- 29043553 TI - What is this image? 2017: image 3 result : Incidental findings during myocardial perfusion imaging. PMID- 29043551 TI - MAGI-1 expression is decreased in several types of human T-cell leukemia cell lines, including adult T-cell leukemia. AB - Membrane-associated guanylate kinase with inverted orientation protein 1 (MAGI-1) is a cytoplasmic scaffold protein that interacts with various signaling molecules; it negatively controls the cell growth of various types of cells and positively controls cell-cell interaction. In T cells, MAGI-1 has been shown to inhibit Akt activity through its interaction with PTEN and MEK1. In this study we found that MAGI-1 expression is decreased in multiple (9 out of 15) human T-cell leukemia cell lines, including adult T-cell leukemia (ATL), T-cell acute lymphoblastic leukemia and chronic T-cell lymphocytic leukemia. The overexpression of MAGI-1 protein in a MAGI-1-low ATL cell line reduced cellular growth. While the overexpression of MAGI-1 protein in a MAGI-1-low ATL cell line reduced the Akt and MEK activities, the knockdown of MAGI-1 in a MAGI-1-high ATL cell line augmented the Akt and MEK activities. Collectively, the findings of the present study suggest that the decreased expression of MAGI-1 in human T cells contributes to the development of several types of T-cell leukemia, partly through the stimulation of the Akt and MEK pathways. PMID- 29043554 TI - Evaluation of left ventricular mass on cadmium-zinc-telluride imaging: Validation against cardiac magnetic resonance. AB - BACKGROUND: Single-photon emission computed tomography has shown relevant limitations in the quantification of left ventricular (LV) mass. We sought to compare the estimates of LV mass on Cadmium-Zinc-Telluride (CZT) myocardial perfusion imaging (MPI) as compared to cardiac magnetic resonance (CMR). METHODS AND RESULTS: Twenty-five patients underwent MPI on a CZT camera and CMR on a 1.5 T scanner within 12 +/- 3 weeks. LV mass was quantified on CZT images using two softwares: 4D-MSPECT (4DM) and Emory Cardiac Toolbox (ECTb). LV mass by CMR was quantified using MASS software (Medis, Leiden, The Netherlands). LV mass values obtained with 4DM and ECTb were highly reproducible [intraclass correlation coefficients .98 (95% CI .97-.99), and .98 (95% CI 0.97-.99), respectively]. The mean LVM mass values were 151 +/- 44 g on CMR, 151 +/- 43 g with 4DM (P = NS vs CMR), and 157 +/- 42 g with ECTb (P < .001 vs CMR; P = .007 vs 4DM) CZT images. There was an excellent correlation between LV mass values between CMR and both 4DM (R 2 = .95; P < .001) and ECTb (R 2 = .98; P < .001) with narrow limits of agreement (- 13.6% to + 13.4% for 4DM, and - 5.6% to + 14.1% for ECTb). CONCLUSIONS: The evaluation of LV mass is feasible on CZT images, showing excellent agreement with CMR. PMID- 29043555 TI - Impact of non-specific normal databases on perfusion quantification of low-dose myocardial SPECT studies. AB - AIM: To evaluate the impact of non-specific normal databases on the percent summed rest score (SR%) and stress score (SS%) from simulated low-dose SPECT studies by shortening the acquisition time/projection. METHODS: Forty normal weight and 40 overweight/obese patients underwent myocardial studies with a conventional gamma-camera (BrightView, Philips) using three different acquisition times/projection: 30, 15, and 8 s (100%-counts, 50%-counts, and 25%-counts scan, respectively) and reconstructed using the iterative algorithm with resolution recovery (IRR) AstonishTM (Philips). Three sets of normal databases were used: (1) full-counts IRR; (2) half-counts IRR; and (3) full-counts traditional reconstruction algorithm database (TRAD). The impact of these databases and the acquired count statistics on the SR% and SS% was assessed by ANOVA analysis and Tukey test (P < 0.05). RESULTS: Significantly higher SR% and SS% values (> 40%) were found for the full-counts TRAD databases respect to the IRR databases. For overweight/obese patients, significantly higher SS% values for 25%-counts scans (+19%) are confirmed compared to those of 50%-counts scan, independently of using the half-counts or the full-counts IRR databases. CONCLUSIONS: AstonishTM requires the adoption of the own specific normal databases in order to prevent very high overestimation of both stress and rest perfusion scores. Conversely, the count statistics of the normal databases seems not to influence the quantification scores. PMID- 29043556 TI - Incidence of atrioventricular block with vasodilator stress SPECT: A meta analysis. AB - BACKGROUND: Adenosine or regadenoson are often used with pharmacologic stress testing. Adenosine may trigger atrioventricular block (AVB). Despite its higher selectivity, regadenoson has also been associated with AVB. We studied the incidence of de novo AVB with these agents. METHODS: A comprehensive search of SCOPUS was performed from inception to March 2016. Studies of at least 10 patients, using adenosine and/or regadenoson with SPECT-MPI, reporting rates of AVB were selected for further review. RESULTS: Thirty four studies were pooled including 22,957 patients. Adenosine was used in 21 studies and regadenoson in 15. Both were administered in two studies. The estimated incidence of overall and high-grade AVB was 3.81% (95% CI 1.99%-6.19%) and 1.93% (95% CI 0.77%-3.59%), respectively. The incidence of AVB (8.58%; 95% CI 5.55%-12.21% vs 0.30%; 95% CI 0.04%-0.82%, respectively, P < .001) and high-grade AVB (5.21%; 95% CI 2.81% 8.30% vs 0.05%; 95% CI < .001%-0.19% respectively, P < .001) were higher with adenosine compared to regadenoson. CONCLUSION: AVB is seen in about 4% of patients undergoing vasodilator stress test. Both overall and high-grade AVB are more frequent with adenosine compared to regadenoson. PMID- 29043558 TI - Enriched Expression of Neutral Sphingomyelinase 2 in the Striatum is Essential for Regulation of Lipid Raft Content and Motor Coordination. AB - Sphingomyelinases are a family of enzymes that hydrolyze sphingomyelin to generate phosphocholine and ceramide. The brain distribution and function of neutral sphingomyelinase 2 (nSMase2) were elucidated in this study. nSMase2 mRNA expression was greatest in the striatum, followed by the prefrontal cortex, hippocampus, cerebellum, thalamus, brainstem, and olfactory bulb. The striatum had the highest level of nSMase2 protein expression, followed by the prefrontal cortex, thalamus, hippocampus, brainstem, and cerebellum. Dense immunolabeling was observed in the striatum, including the caudate-putamen, while moderately dense staining was found in the olfactory bulb and cerebral neocortex. Electron microscopy of the caudate-putamen showed nSMase2 immunoreaction product was present in small diameter dendrites or dendritic spines, that formed asymmetrical synapses with unlabeled axon terminals containing small round vesicles; and characteristics of glutamatergic axons. Lipidomic analysis of the striatum showed increase in long chain sphingomyelins, SM36:1 and SM38:1 after inhibition of nSMase activity. Quantitative proteomic analysis of striatal lipid raft fraction showed many proteins were downregulated by more than 2-fold after inhibition or antisense knockdown of nSMase; consistent with the notion that nSMase2 activity is important for aggregation or clustering of proteins in lipid rafts. Inhibition or antisense knockdown of nSMase2 in the caudate-putamen resulted in motor deficits in the rotarod and narrow beam tests; as well as decreased acoustic startle and improved prepulse inhibition of the startle reflex. Together, results indicate an important function of nSMase2 in the striatum. PMID- 29043559 TI - Nonfunctioning adrenal incidentaloma affecting central blood pressure and arterial stiffness parameters. AB - PURPOSE: Recently, cardiovascular risk is thought to be increased in patients with nonfunctioning adrenal incidentaloma (NFAI). There are no sufficient studies in the literature to evaluate this situation in NFAI patients without cardiovascular risk. The objective of this study is to compare peripheral and central blood pressure and arterial stiffness between patients with NFAI and healthy volunteers (of a similar age, gender and body mass index as the NFAI group) who have no traditional cardiovascular risk factors and autonomous cortisol secretion, with pulse wave analysis (PWA). METHODS: In this cross sectional study, we evaluated 35 NFAI patients who have no traditional cardiovascular risk factors and 35 healthy volunteers. PWA was performed in the participants of similar gender, age and body mass index, with a Mobil-O-Graph PWA/ABPM (I.E.M. GmBH, Stolberg, Germany) device. Radiological and biochemical data were obtained retrospectively in the NFAI group. RESULTS: In our study, systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), central SBP, central DBP, peripheral vascular resistance, augmentation pressure (AP), heart rate-corrected augmentation index (Aix@75) and pulse wave velocity (PWV) values were significantly higher in the NFAI group compared to the control group. In addition, peripheral and central blood pressure and arterial stiffness parameters were correlated with age and duration of NFAI diagnosis of more than 1 year. CONCLUSIONS: NFAIs are known as cardiometabolically innocent, but in our study, both peripheral and central blood pressure values and arterial stiffness parameters were negatively affected in patients diagnosed with NFAI who have no traditional cardiovascular risk factors. These patients are at risk of cardiovascular diseases. PMID- 29043557 TI - A joint procedural position statement on imaging in cardiac sarcoidosis: from the Cardiovascular and Inflammation & Infection Committees of the European Association of Nuclear Medicine, the European Association of Cardiovascular Imaging, and the American Society of Nuclear Cardiology. PMID- 29043560 TI - Optimal timing of dopamine agonist withdrawal in patients with hyperprolactinemia: a systematic review and meta-analysis. AB - PURPOSE: Dopamine agonists (DAs) are recommended as first-line treatment for patients with hyperprolactinemia. Generally, it is accepted that patients with hyperprolactinemia do not need lifelong medication, but the optimal timing for DA withdrawal has not been determined. The aim of this systematic review and meta analysis is to assess the impact of DA withdrawal on the clinical outcomes of patients with hyperprolactinemia, and to explore possible factors affecting successful DA withdrawal. METHODS: The databases of PubMed, Cochrane and EMBASE were searched up to May 2016. RESULTS: The proportion of patients with persisting normoprolactinemia after DA withdrawal reached 36.6% in a random effects model (95% CI, 29.4-44.2%; I-squared: 82.5%). Data of stratified analysis showed that the success rate of drug withdrawal was high in patients using cabergoline (CAB) as the only treatment (41.2%; 95% CI 32.3-50.4%) and those using CAB over 24 months (48.7%; 95% CI 38.9-58.5%), especially in patients with idiopathic hyperprolactinemia (73.2%; 95% CI 55.6-87.7%). In addition, patients who received a low maintenance dose of CAB, and had a significant reduction in tumor size (over 50%) before withdrawal, were more likely to achieve success (51.5 and 49.4%, respectively). CONCLUSION: The success rate of DA withdrawal has increased in recent years. Further, the success rate of CAB withdrawal was higher than that of bromocriptine, especially in patients with a duration of treatment longer than 24 months. Conclusively, the probability of success was higher in patients who received low-dose CAB maintenance treatment and those who achieved a significant reduction in tumor size before withdrawal. PMID- 29043561 TI - Clinical profile of silent growth hormone pituitary adenomas; higher recurrence rate compared to silent gonadotroph pituitary tumors, a large single center experience. AB - PURPOSE: Study and comparison of characteristics of silent growth hormone adenomas (SGHA), silent corticotroph adenomas (SCA), and silent gonadotroph adenomas (SGA) in a single institution cohort of surgically treated pituitary adenomas. METHODS: Retrospective analysis of SGHA surgically resected over 10 years: SGHA was defined as no clinical or biochemical evidence of acromegaly and positive GH immunostaining. RESULTS: Of 814 pituitary surgeries; 2.1% (n = 17) were SGHA, 4.5% (n = 37) SCA, and 18.9% (n = 70/371; 2011-2016) SGA. Mean age at SGHA diagnosis was 43 years, with a large female predominance (82%). Mean tumor size and cavernous/sphenoid sinus invasiveness for SGHA, SCA, and SGA were 1.5 +/ 1.0 cm and 25%, 2.5 +/- 1.2 cm and 43%, 2.9 +/- 2.0 cm and 41%, respectively (tumor size p = 0.009, SGHA vs. SGA, and invasion p; not-significant). During mean follow-up of 3.9 years, two patients (11%) developed elevated insulin-like growth factor-1 and five patients (29%) required a second surgery for tumor recurrence. Rate of surgical reintervention was similar to SCA (31%), but higher than SGA (10%) (p = 0.035, SGHA vs. SGA), and 18% underwent radiation therapy, similar to SCA (19%, p; not-significant) but higher than SGA (2.9%, p = 0.018). CONCLUSION: This is the largest single center study characterizing SGHA behavior with SGA and SCA control groups in a cohort of surgically resected pituitary adenomas. SGHA present mostly in young females, and should be closely followed due to their higher likelihood of recurrence and potential of progression to clinical acromegaly. We propose that a complete hormonal staining panel be routinely performed for all pituitary adenomas. PMID- 29043562 TI - A review of the management of tibial plateau fractures. AB - Tibial plateau fractures form a wide spectrum of injuries presenting varying challenges to the trauma surgeon. The prognosis of this injury spectrum is largely dependent on the management of each particular configuration, and the literature is as a result littered with a number of management strategies with limited consensus. The aim of this review is to provide a concise guide to the trauma surgeon based on newer and classical peer-reviewed publications in international orthopaedic journals. A PubMed search was conducted to identify peer-reviewed publications within the last 10 years and expanded to identify classic papers pertaining to the Schatzker classification. The focus was on articles based on management techniques, controversies and recent developments. The management of specific injury patterns is based on the Schatzker classification which is a widely accepted traditional classification system. Whilst there is a general consensus on the ultimate goal of a stable anatomic reduction in this subset of fractures, there continues to be a number of controversies surrounding issues including pre-operative imaging, initial assessment and definitive management of specific injury patterns, some of which do not conform to the original Schatzker classification. The majority of fractures will require operative management, and with whatever management strategy employed, the main emphasis is on respecting the soft tissue envelope. There remains a paucity of prospective randomised controlled trials comparing the different available operative techniques. PMID- 29043563 TI - Malformation of the Posterior Cerebellar Vermis Is a Common Neuroanatomical Phenotype of Genetically Engineered Mice on the C57BL/6 Background. AB - C57BL/6 mice exhibit spontaneous cerebellar malformations consisting of heterotopic neurons and glia in the molecular layer of the posterior vermis, indicative of neuronal migration defect during cerebellar development. Recognizing that many genetically engineered (GE) mouse lines are produced from C57BL/6 ES cells or backcrossed to this strain, we performed histological analyses and found that cerebellar heterotopia were a common feature present in the majority of GE lines on this background. Furthermore, we identify GE mouse lines that will be valuable in the study of cerebellar malformations including diverse driver, reporter, and optogenetic lines. Finally, we discuss the implications that these data have on the use of C57BL/6 mice and GE mice on this background in studies of cerebellar development or as models of disease. PMID- 29043565 TI - Eccentric Macular Hole after Pars Plana Vitrectomy for Epiretinal Membrane Without Internal Limiting Membrane Peeling: A Case Report. AB - INTRODUCTION: Postoperative eccentric macular hole formation is an uncommon complication after pars plana vitrectomy (PPV) without internal limiting membrane (ILM) peeling for the treatment of epiretinal membrane (ERM). We present a case of eccentric macular hole formation after PPV for ERM without ILM peeling. CASE REPORT: A 68-year-old male patient presented with ERM and visual acuity of 6/24 in his left eye. He underwent 23-gauge PPV without ILM peeling for treatment of ERM. One week postoperatively the retina was attached and the epiretinal membrane was successfully removed, while visual acuity was 6/9. One month after PPV, a single eccentric retinal hole below the macula was detected using fundoscopy and subsequently confirmed by optical coherence tomography. At this time the visual acuity was 6/9 and the patient reported no symptoms. No further intervention was attempted and at the 9-month follow-up, the visual acuity and the size of the eccentric macular hole remained stable. CONCLUSION: Eccentric macular holes can be developed after PPV even without ILM peeling and are usually managed conservatively by observation. PMID- 29043564 TI - The UCP2-866G/A Polymorphism Could be Considered as a Genetic Marker of Different Functional Prognosis in Ischemic Stroke After Recanalization. AB - Recent studies based on experimental animal models of stroke have suggested that uncoupling protein 2 (UCP2), an inner mitochondrial membrane protein that is thought to regulate energy metabolism and reduce reactive oxygen species generation, provides protection against reperfusion damage. We aimed to investigate whether -866G/A polymorphism in the promoter of the UCP2 gene, which enhances its transcriptional activity, is associated with functional prognosis in patients with embolic ischemic stroke after early recanalization. We investigate a hospital-based prospective cohort of patients with acute ischemic stroke due to occlusion of the middle cerebral artery diagnosed by transcranial Doppler who obtained a partial/complete recanalization 24 h after administration of intravenous thrombolysis. The main end point of the study was functional independence defined as modified Rankin Scale 0-2 on day 90. A total of 80 patients were enrolled. The UCP2-866G/A polymorphism was determined by polymerase chain reaction-restriction fragment length polymorphism technique (14 genotype A/A (18%), 45 genotype A/G (56%) and 21 genotype G/G (26%). The percentage of patients with good functional outcome at 3 months was significantly higher in patients harboring the A/A genotype than in those with A/G or G/G genotypes (85 vs 41%, p = 0.01). The A/A genotype was found to be an independent marker of good prognosis after adjustment for secondary variables (age, sex, glucose level, NIHSS score at baseline, complete recanalization and early neurological improvement) in a logistic regression analysis (OR 0.05, 95% CI 0.01-0.48, p = 0.01). Our results suggest that the AA genotype of UCP2-866 may predict a better functional outcome in ischemic stroke after recanalization of proximal MCA occlusion. PMID- 29043566 TI - Clinical Evaluation and Physical Exam Findings in Patients with Anterior Shoulder Instability. AB - PURPOSE OF REVIEW: The goal of this paper is to provide an overview in evaluating the patient with suspected or known anteroinferior glenohumeral instability. RECENT FINDINGS: There is a high rate of recurrent subluxations or dislocations in young patients with history of anterior shoulder dislocation, and recurrent instability will increase likelihood of further damage to the glenohumeral joint. Proper identification and treatment of anterior shoulder instability can dramatically reduce the rate of recurrent dislocation and prevent subsequent complications. Overall, the anterior release or surprise test demonstrates the best sensitivity and specificity for clinically diagnosing anterior shoulder instability, although other tests also have favorable sensitivities, specificities, positive likelihood ratios, negative likelihood ratios, and inter rater reliabilities. Anterior shoulder instability is a relatively common injury in the young and athletic population. The combination of history and performing apprehension, relocation, release or surprise, anterior load, and anterior drawer exam maneuvers will optimize sensitivity and specificity for accurately diagnosing anterior shoulder instability in clinical practice. PMID- 29043567 TI - Impact of Adverse Events on Health Utility and Health-Related Quality of Life in Patients Receiving First-Line Chemotherapy for Metastatic Breast Cancer: Results from the SELECT BC Study. AB - OBJECTIVE: The aim of this study was to investigate the impact of adverse events (AEs) on health utility and health-related quality of life (HRQOL) in patients with metastatic breast cancer undergoing first-line chemotherapy. METHODS: We analyzed the data from the SELECT BC study, a multicenter, open-label, randomized, phase III study conducted in Japan, which compared first-line S-1 with taxane therapies. Heath utility and HRQOL were assessed using the EQ-5D-3L and European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) at baseline and 3, 6, and 12 months after treatment initiation. Health utility was calculated based on societal preferences, and AEs were reported at each cycle of the study treatment. Linear marginal mean models were used to quantify the impact of the last AEs (with 10 or more incidences) observed before HRQOL assessment on health utility and HRQOL. RESULTS: Analysis included 380 patients and 12 (of 15) AEs. Grade 1 nausea and oral mucositis, grade 1 and 2 edema, and grade 2 fatigue, motor and sensory neuropathy, and myalgia were significantly associated with disutility, measured using the EQ-5D-3L. Grade 1 oral mucositis, grade 1 and 2 fatigue, and grade 2 sensory neuropathy were significantly associated with impaired global health status in the EORTC QLQ-C30. AEs associated with decrements in the five functioning scales included fatigue, oral mucositis, nausea, edema, motor and sensory neuropathy, and myalgia. CONCLUSIONS: We reported disutilities caused by AEs in patients with metastatic breast cancer under chemotherapy. These findings can be applied to future model-based cost-effectiveness analyses. TRIAL REGISTRATION NUMBER: C000000416. PMID- 29043568 TI - Intensified neoadjuvant multimodal approach in synchronous liver metastases from gastric cancer: a single institutional experience. AB - BACKGROUND: Synchronous liver metastases (LM) from gastric (GC) or esophagogastric junction (EGJ) adenocarcinoma are a rare events. Several trials have evaluated the role of liver surgery in this setting, but the impact of preoperative therapy remains undetermined. METHODS: Patients with synchronous LM from GC/EGJ adenocarcinoma who achieved disease control after induction chemotherapy (ICT) and were subsequently scheduled to chemoradiotherapy (CRT) to the primary tumor and surgery assessment were retrospectively analyzed. Pathological response, patterns of relapse, progression-free survival (PFS), and overall survival (OS) were calculated. From July 2002 to September 2012, 16 patients fulfilling the inclusion criteria were identified. RESULTS: Primary tumor site was GC (nine patients) or EGJ (seven patients). LM were considered technically unresectable in nine patients. Radiological response to the whole neoadjuvant program was achieved in 13 patients. Eight patients underwent surgical resection of the primary tumor; in five of these LM were resected. A complete pathological response in the primary or in the LM was found in four and three patients, respectively. The most frequent site of relapse/progression was systemic (eight patients). Local and liver-only relapses were observed in two patients each. After a median follow-up of 91 months, the median OS and PFS were 23.0 (95% CI 13.2-32.8) and 17.0 months (95% CI 11.7-22.3). 5-year actuarial PFS is 17.6%. CONCLUSION: Our results suggest that an intensified approach using ICT followed by CRT in synchronous LM from GC/EGJ adenocarcinoma is feasible and may translate into prolonged survival times in selected patients. PMID- 29043569 TI - Nutritional support and parenteral nutrition in cancer patients: an expert consensus report. AB - BACKGROUND: Malnutrition is a frequent medical problem of cancer patients that negatively impacts their quality of life. METHODS: A multidisciplinary group of experts in Medical Oncology, Pharmacy, and Nutrition convened to discuss the management of the nutritional support in cancer patients. RESULTS: Of the 18 questions addressed, 9 focused on nutritional support, 5 were related to parenteral nutrition (PN) and 4 about home PN (HPN). The panel of experts recommends using nutritional screening routinely, at diagnosis and throughout the disease course, for detecting the risk of malnutrition and, if it is positive, to perform a complete nutritional assessment, to diagnose malnutrition. Currently, there are different screening tools and methods that allow us to detect nutritional risk. Based on the evidence and experience, the panel stated that PN is indicated mainly when it is not possible to use the digestive tract and/or oral feeding and/or enteral nutrition is not sufficient or possible. The nutritional needs of the cancer patients, except in those cases where individualized measures are required, should be considered similar to healthy individuals (25-30 kcal/kg/day). The panel considers that the nutritional monitoring of the cancer patient should be multidisciplinary and adapted to the characteristics of each center. Additionally, the objective of the HPN is to improve or maintain the nutritional status of a patient at home. CONCLUSIONS: This document seeks to lay down a set of recommendations and to identify key issues that may be useful for the nutritional management of cancer patients. PMID- 29043571 TI - An uncertainty-based framework to quantifying climate change impacts on coastal flood vulnerability: case study of New York City. AB - The continued development efforts around the world, growing population, and the increased probability of occurrence of extreme hydrologic events have adversely affected natural and built environments. Flood damages and loss of lives from the devastating storms, such as Irene and Sandy on the East Coast of the USA, are examples of the vulnerability to flooding that even developed countries have to face. The odds of coastal flooding disasters have been increased due to accelerated sea level rise, climate change impacts, and communities' interest to live near the coastlines. Climate change, for instance, is becoming a major threat to sustainable development because of its adverse impacts on the hydrologic cycle. Effective management strategies are thus required for flood vulnerability reduction and disaster preparedness. This paper is an extension to the flood resilience studies in the New York City coastal watershed. Here, a framework is proposed to quantify coastal flood vulnerability while accounting for climate change impacts. To do so, a multi-criteria decision making (MCDM) approach that combines watershed characteristics (factors) and their weights is proposed to quantify flood vulnerability. Among the watershed characteristics, potential variation in the hydrologic factors under climate change impacts is modeled utilizing the general circulation models' (GCMs) outputs. The considered factors include rainfall, extreme water level, and sea level rise that exacerbate flood vulnerability through increasing exposure and susceptibility to flooding. Uncertainty in the weights as well as values of factors is incorporated in the analysis using the Monte Carlo (MC) sampling method by selecting the best-fitted distributions to the parameters with random nature. A number of low impact development (LID) measures are then proposed to improve watershed adaptive capacity to deal with coastal flooding. Potential range of current and future vulnerability to flooding is estimated with and without consideration of climate change impacts and after implementation of LIDs. Results show that climate change has the potential to increase rainfall intensity, flood volume, floodplain extent, and flood depth in the watershed. The results also reveal that improving system resilience by reinforcing the adaptation capacity through implementing LIDs could mitigate flood vulnerability. Moreover, the results indicate the significant effect of uncertainties, arising from the factors' weights as well as climate change, impacts modeling approach, on quantifying flood vulnerability. This study underlines the importance of developing applicable schemes to quantify coastal flood vulnerability for evolving future responses to adverse impacts of climate change. PMID- 29043570 TI - Towards precision nephrology: the opportunities and challenges of genomic medicine. AB - The expansion of genomic medicine is furthering our understanding of many human diseases. This is well illustrated in the field of nephrology, through the characterization, discovery, and growing insight into various renal diseases through use of Next Generation Sequencing (NGS) technologies. This review will provide an overview of the diagnostic opportunities of using genetic testing in the clinical setting by describing notable discoveries regarding inherited forms of renal disease that have advanced the field and by highlighting some of the potential benefits of establishing a molecular diagnosis in a clinical practice. In addition, it will discuss some of the challenges associated with the expansion of genetic testing into the clinical setting, including clinical variant interpretation and return of genetic results. PMID- 29043572 TI - Secreted proteins produced by fungi associated with Botryosphaeria dieback trigger distinct defense responses in Vitis vinifera and Vitis rupestris cells. AB - Grapevine trunk diseases (Eutypa dieback, esca and Botryosphaeria dieback) are caused by a complex of xylem-inhabiting fungi, which severely reduce yields in vineyards. Botryosphaeria dieback is associated with Botryosphaeriaceae. In order to develop effective strategies against Botryosphaeria dieback, we investigated the molecular basis of grapevine interactions with a virulent species, Neofusicoccum parvum, and a weak pathogen, Diplodia seriata. We investigated defenses induced by purified secreted fungal proteins within suspension cells of Vitis (Vitis rupestris and Vitis vinifera cv. Gewurztraminer) with putative different susceptibility to Botryosphaeria dieback. Our results show that Vitis cells are able to detect secreted proteins produced by Botryosphaeriaceae, resulting in a rapid alkalinization of the extracellular medium and the production of reactive oxygen species. Concerning early defense responses, N. parvum proteins induced a more intense response compared to D. seriata. Early and late defense responses, i.e., extracellular medium alkalinization, cell death, and expression of PR defense genes were stronger in V. rupestris compared to V. vinifera, except for stilbene production. Secreted Botryosphaeriaceae proteins triggered a high accumulation of delta-viniferin in V. vinifera suspension cells. Artificial inoculation assays on detached canes with N. parvum and D. seriata showed that the development of necrosis is reduced in V. rupestris compared to V. vinifera cv. Gewurztraminer. This may be related to a more efficient induction of defense responses in V. rupestris, although not sufficient to completely inhibit fungal colonization. Overall, our work shows a specific signature of defense responses depending on the grapevine genotype and the fungal species. PMID- 29043573 TI - Structural and physiological responses of Halodule wrightii to ocean acidification. AB - Coastal areas face high variability of seawater pH. Ocean acidification (OA) and local stressors are enhancing this variability, which poses a threat to marine life. However, these organisms present potential phenotypic plasticity that can offer physiological and structural tools to survive in these extreme conditions. In this study, we evaluated the effects of elevated CO2 levels and consequent pH reduction on the physiology, anatomy and ultrastructure of the seagrass Halodule wrightii. A mesocosm study was conducted in an open system during a 30-day experiment, where different concentrations of CO2 were simulated following the natural variability observed in coastal reef systems. This resulted in four experimental conditions simulating the (i) environmental pH (control condition, without CO2 addition) and (ii) reduced pH by - 0.3 units, (iii) - 0.6 units and (iv) - 0.9 units, in relation to the field condition. The evaluated population only suffered reduced optimum quantum yield (Y(II)), leaf width and cross-section area under the lowest CO2 addition (- 0.3 pH units) after 30 days of experiment. This fitness commitment should be related to carbon concentration mechanisms present in the evaluated species. For the highest CO2 level, H. wrightii demonstrated a capacity to compensate any negative effect of the lowest pH. Our results suggest that the physiological behaviour of this primary producer is driven by the interactions among OA and environmental factors, like irradiance and nutrient availability. The observed behaviour highlights that high-frequency pH variability and multifactorial approaches should be applied, and when investigating the impact of OA, factors like irradiance, nutrient availability and temperature must be considered as well. PMID- 29043575 TI - Benzenoid Quinodimethanes. AB - Reactivity and physical properties of pi-conjugated hydrocarbon systems depend predominantly on the topology of pi-electrons array. Quinoidal conjugations serve as giving diradical character to molecules, leading to unique chemical behaviors. The simplest member of quinodimethanes are o-, m-, and p-quinodimethanes, which are very reactive due to diradical character and cannot be isolated under normal experimental conditions. However, chemical modifications, such as pi-extension or introduction of substituent groups, of quinodimethanes imparts stabilities to quinodimethanes that can be handled under ambient conditions. This chapter offers an overview of reactivity and magnetic properties of benzenoid o-, m-, and p quinodimethanes. PMID- 29043574 TI - Characterization and implications of thyroid dysfunction induced by immune checkpoint inhibitors in real-life clinical practice: a long-term prospective study from a referral institution. AB - PURPOSE: Autoimmune diseases are typically associated with immune checkpoints blockade. This study aims at assessing, in real-life clinical practice, the prevalence and impact of thyroid disorders induced by immune checkpoint inhibitors. METHODS: 52 patients (30 F; age 61 +/- 13 years) with advanced melanoma treated with ipilimumab (3 mg/kg i.v./3 weeks; 4 doses) were included. For disease progression, 29 (16 F) of them received nivolumab (3 mg/kg i.v./2 weeks) or pembrolizumab (2 mg/kg i.v./3 weeks). Thyroid function and autoimmunity were assessed before, after 6 weeks, at the end of ipilimumab, as well as before and every 3 months during nivolumab/pembrolizumab treatment. RESULTS: During ipilimumab, 7 (4 F) patients developed thyroid dysfunction (4 thyroiditis, 1 associated with hypothyroidism; 2 thyrotoxicosis in a previously euthyroid multinodular goiter; 1 hypothyroidism worsened). During PD1 inhibitors, 7 patients (3 F) developed hypothyroidism with severe manifestations in 6 of them; 3 patients suffered from euthyroid autoimmune thyroiditis from baseline, one after ipilimumab; 2 patients developed after transient thyrotoxicosis. Mean follow-up after anti-CTLA4 inhibitors treatment was 36 +/- 28 months. Thyroid disorders occurred 45.1 +/- 20.8 and 151 +/- 67 days after the initiation of CTLA4 and PD1 inhibitors, respectively. Autoimmune disorders and BRAF mutation were associated with a better clinical response to CTLA4 followed by PD1 treatment. CONCLUSIONS: Immune checkpoint blockade is burdened by a high incidence of autoimmune thyroid dysfunction, which is often severe. Therefore, early and careful monitoring and, eventually, treatment are crucial to prevent the negative impact of thyroid dysfunction on the clinical outcome. PMID- 29043577 TI - Hepatic Hemolymphangioma Manifesting as Severe Anemia. PMID- 29043576 TI - Submucosal Tunneling Endoscopic Resection for the Treatment of Gastrointestinal Submucosal Tumors Originating from the Muscularis Propria Layer. AB - Surgical resection and endoscopic resection comprise two alternative options for the treatment of submucosal tumors (SMTs) originating from the muscularis propria (MP) layer. Endoscopic resection is minimally invasive compared with surgical resection. Conventional non-tunneling techniques, such as endoscopic submucosal dissection (ESD), endoscopic submucosal excavation (ESE), and endoscopic full thickness resection (EFR) have been demonstrated to be safe and effective. However, these techniques fail to maintain the integrity of the mucosa and induce high risk of perforation, infection, and postoperative strictures. Submucosal tunneling endoscopic resection (STER) is a novel surgical technique that can maintain the integrity of the mucosa by establishing a tunnel between the submucosal and the MP layers. STER has been proven to be effective and safe for the treatment of SMTs. Currently, STER has become a standard treatment for gastrointestinal (GI) SMTs originating from the MP layer, notably in China. In the present review, we describe the indications, procedures, postoperative care, efficacy and safety outcomes, and future perspectives of STER for GI SMTs originating from the MP layer. PMID- 29043578 TI - Duodenal Crohn's Disease-a Diagnostic Conundrum. AB - Gastroduodenal Crohn's disease is rare as most often the disease is found in the terminal ileum and colon rather than the upper gastrointestinal tract. The most common phenotype is stricturing disease which can lead to obstructive-like symptoms. Medical treatment options include proton pump inhibitors and biologic therapy. Endoscopic and surgical intervention may be needed to relieve the obstructive-like symptoms from the stricturing phenotype. PMID- 29043579 TI - Chylous Mesenteric Cyst. PMID- 29043580 TI - A Comprehensive Assessment of Accurate Lymph Node Staging and Preoperative Detection in Resected Pancreatic Cancer. AB - BACKGROUND: The current (seventh edition) American Joint Commission on Cancer (AJCC) Staging System for pancreatic ductal adenocarcinoma (PDAC) dichotomizes pathologic lymph node (LN) involvement into absence (pN0) or presence (pN1) of disease. The recently announced eighth edition also includes stratification on the number of positive nodes. Furthermore, LNs detected on preoperative imaging (CT, MRI, or endoscopic ultrasound-EUS) are considered to be pathologically involved in other gastrointestinal cancers. However, this is less well defined for PDAC. Therefore, the three aims of this study were to determine (1) whether the new AJCC staging system led to more accurate staging, (2) the number of nodes needed to be examined to detect pathologic involvement, and (3) if pN disease could be reliably detected on preoperative imaging in PDAC. METHODS: A retrospective review of all patients undergoing pancreatectomy at a single US academic center from January 1990 to September 2015. Pathology reports of resected specimens were reviewed to determine the total number of LNs examined and those positive for metastasis. CT, MRI, and/or EUS reports were used to determine the presence or absence of preoperatively detectable LN enlargement. RESULTS: Of the 490 surgical resections for PDAC, pN1 disease was detected in 59.4% (n = 291) and was positively correlated with the number of LNs pathologically examined (P < 0.001). Patients with pN1 disease had a shorter overall survival (OS) than those without nodal involvement (25.1 vs. 44.0 months; P < 0.001); however, OS was not different when stratifying by the number of nodes as on the eighth AJCC system. Pathologic examination of > 20 LNs in treatment naive patients was optimal to detect pN1 disease and predict longer OS for those without nodal involvement (median survival > 41.1 months, P = 0.03 when compared to < 15 or 15-19 LNs examined). LNs were detected by CT, MRI, or EUS in 30.7% (103/335) of patients. The positive predictive value (PPV) of preoperative LN detection for pathologic involvement was 77.3% for treatment naive patients and 84.2% for those without biliary obstruction. CONCLUSIONS: Although the LN scoring in the seventh PDAC AJCC Staging System was sufficient to predict OS of our patients, more LNs than previously considered (20 vs. 15) were optimal to detect pathologic involvement. Preoperative LN detection was an accurate predictor of pN1 disease for treatment naive patients without biliary obstruction. PMID- 29043581 TI - The Unique Blood Pressures and Pulsatility of LVAD Patients: Current Challenges and Future Opportunities. AB - An increasing number of end-stage heart failure patients are now implanted with continuous-flow left ventricular assist devices (CF-LVADs). Although this therapeutic approach is associated with improved clinical outcomes, continuous flow physiology reduces arterial pulse pressure and pulsatility to an extent that is unique to this population. Recent data suggest that high blood pressure (BP) contributes to life-threatening complications such as pump thrombosis and stroke of CF-LVAD patients. However, limited understanding of the distinct hemodynamics of these pumps makes measurement and, consequently, medical management of BP quite challenging. Here, we review the evolution of LVAD design, the impact of CF LVAD flow, and "artificial pulse" technology on hemodynamics and BP measurement, as well as suggest new approaches for the assessment and interpretation of the unique physiology of modern LVADs. PMID- 29043583 TI - Correction to: Delineation of the Role of Astroglial GABA Transporters in Seizure Control. AB - The original version of this article unfortunately contained a mistake. In Fig. 1 two chemical structures are incorrect, namely exo-THPO and N-methyl-exo-THPO. The hydroxyl group (-OH) in the isoxazole ring is missing. The corrected Fig. 1 is given below. PMID- 29043582 TI - Triclosan-coated sutures and surgical site infection in abdominal surgery: the TRISTAN review, meta-analysis and trial sequential analysis. AB - INTRODUCTION: Surgical site infection (SSI) is a frequent complication of abdominal surgery causing increased morbidity. Triclosan-coated sutures are recommended to reduce SSI. The aim of this systematic review and meta-analysis was to evaluate the evidence from randomized controlled trials (RCT) comparing the rate of SSI in abdominal surgery when using triclosan-coated or uncoated sutures for fascial closure. METHODS: A systematic literature search was conducted using Medline, EMBASE, the Cochrane library, CINAHL, Scopus and Web of Science including publications until August 2017. The quality of the RCTs was evaluated using critical appraisal checklists from SIGN. Meta-analyses and trial sequential analysis were performed with Review Manager v5.3 and TSA software, respectively. RESULTS: Eight RCTs on abdominal wall closure were included in the meta-analysis. In an overall comparison including both triclosan-coated Vicryl and PDS sutures for fascial closure, triclosan-coated sutures were superior in reducing the rate of SSI (OR 0.67; 0.46-0.98). When evaluating PDS sutures separately, there was no effect of triclosan-coating on the rate of SSI (OR 0.85; 0.61-1.17). Trial sequential analysis showed that the required information size (RIS) of 797 patients for triclosan-coated Vicryl sutures was almost reached with an accrued information size (AIS) of 795 patients. For triclosan-coated PDS sutures an AIS of 2707 patients was obtained, but the RIS was estimated to be 18,693 patients. CONCLUSION: Triclosan-coated Vicryl sutures for abdominal fascial closure decrease the risk of SSI significantly and based on the trial sequential analysis further RCTs will not change that outcome. There was no effect on SSI rate with the use of triclosan-coated PDS sutures for abdominal fascial closure, and it is unknown whether additional RCTs will change that. PMID- 29043584 TI - Determination of the human cytochrome P450 monooxygenase catalyzing the enantioselective oxidation of 2,2',3,5',6-pentachlorobiphenyl (PCB 95) and 2,2',3,4,4',5',6-heptachlorobiphenyl (PCB 183). AB - 2,2',3,5',6-Pentachlorobiphenyl (PCB 95) and 2,2',3,4,4',5',6-heptachlorobiphenyl (PCB 183) possess axial chirality and form the aS and aR enantiomers. The enantiomers of these congeners have been reported to accumulate in the human body enantioselectively via unknown mechanisms. In this study, we determined the cytochrome P450 (CYP) monooxygenase responsible for the enantioselective oxidization of PCB 95 and PCB 183, using a recombinant human CYP monooxygenase. We evaluated 13 CYP monooxygenases, namely CYP1A1, CYP1A2, CYP1B1, CYP2A6, CYP2B6, CYP2C8, CYP2C19, CYP2E1, CYP2J2, CYP3A4, CYP3A5, CYP4F2, and aromatase (CYP19), and revealed that CYP2A6 preferably oxidizes aS-PCB 95 enantioselectively; however, it did not oxidize PCB 183. The enantiomer composition was elevated from 0.5 (racemate) to 0.54. In addition, following incubation with CYP2A6, the enantiomer fraction (EF) of PCB 95 demonstrated a time-dependent increase. PMID- 29043585 TI - Evaluation of leafy vegetables as bioindicators of gaseous mercury pollution in sewage-irrigated areas. AB - Mercury (Hg) can evaporate and enter the plants through the stomata of plant leaves, which will cause a serious threat to local food safety and human health. For the risk assessment, this study aimed to investigate the concentration and accumulation of total gaseous mercury (TGM) in five typical leafy vegetables (Chinese chives (Allium tuberosum Rottler), amaranth (Amaranthus mangostanus L.), rape (Brassica campestris L.), lettuce (Lactuca sativa L.), and spinach (Spinacia oleracea L.)) grown on sewage-irrigated areas in Tianjin, China. The following three sites were chosen to biomonitor Hg pollution: a paddy field receiving sewage irrigation (industrial and urban sewage effluents) for the last 30 years, a vegetable field receiving sewage irrigation for 15 years, and a grass field which did not receive sewage irrigation in history. Results showed that the total Hg levels in the paddy (0.65 mg kg-1) and vegetation fields (0.42 mg kg-1) were significantly higher than the local background level (0.073 mg kg-1) and the China national soil environment quality standard for Hg in grade I (0.30 mg kg 1). The TGM levels in ambient air were significantly higher in the paddy (71.3 ng m-3) and vegetable fields (39.2 ng m-3) relative to the control (9.4 ng m-3) and previously reported levels (1.45 ng m-3), indicating severe Hg pollution in the atmospheric environment of the sewage-irrigated areas. Furthermore, gaseous mercury was the dominant form of Hg uptake in the leaves or irreversibly bound to leaves. The comparison of Hg uptake levels among the five vegetables showed that the gradient of Hg accumulation followed the order spinach > red amaranth > Chinese chives > rape > lettuce. These results suggest that gaseous Hg exposure in the sewage-irrigated areas is a dominant Hg uptake route in leafy vegetables and may pose a potential threat to agricultural food safety and human health. PMID- 29043586 TI - Photocatalytic decomposition of methanol over La/TiO2 materials. AB - Lanthanum-modified TiO2 photocatalysts (0.2-1.5 wt% La) were investigated in the methanol decomposition in an aqueous solution. The photocatalysts were prepared by the common sol-gel method followed by calcination. The structural (X-ray diffraction, Raman, X-ray photoelectron spectroscopy), textural (N2 physisorption), and optical properties (diffuse reflectance spectroscopy, photoelectrochemical measurements) of all synthetized nanomaterials were correlated with photocatalytic activity. Both pure TiO2 and La-doped TiO2 photocatalysts proved higher yields of hydrogen in comparison to photolysis. The photocatalyst with optimal amount of lanthanum (0.2 wt% La) showed almost two times higher amount of hydrogen produced at the same time as in the presence of pure TiO2. The photocatalytic activity increased with both increasing photocurrent response and decreasing amount of lattice and surface O species. It has been shown that both direct and indirect mechanisms of methanol photocatalytic oxidation participate in the production of hydrogen. Both direct and indirect mechanisms take part in the formation of hydrogen. PMID- 29043587 TI - Investigating the pros and cons of browns gas and varying EGR on combustion, performance, and emission characteristics of diesel engine. AB - The significance of mileage to the fruitful operation of a trucking organization cannot be downplayed. Fuel is one of the biggest variable expenses in a trucking wander. An attempt is made in this research to improve the combustion efficiency of a diesel engine for better fuel economy by introducing hydroxy gas which is also called browns gas or HHO gas in the suction line, without compromising performance and emission. Brown's gas facilitates the air-fuel mixture to ignite faster and efficient combustion. By considering safety and handling issues in automobiles, HHO gas generation by electrolysis of water in the presence of sodium bicarbonate electrolytes (NaHCO3) and usage was explored in this research work over compressed pure hydrogen, due to generation and capacity of immaculate hydrogen as of now confines the application in diesel engine operation. Brown's gas was utilized as a supplementary fuel in a single-cylinder, four-stroke compression ignition (CI) engine. Experiments were carried out on a constant speed engine at 1500 rpm, result shows at constant HHO flow rate of 0.73 liter per minute (LPM), brake specific fuel consumption (BSFC) decreases by 7% at idle load to 16% at full load, and increases brake thermal efficiency (BTE) by 8.9% at minimum load to 19.7% at full load. In the dual fuel (diesel +HHO) operation, CO emissions decreases by 19.4, 64.3, and 34.6% at 25, 50, and 75% load, respectively, and unburned hydrocarbon (UHC) emissions decreased by 11.3% at minimum load to 33.5% at maximum load at the expense of NOx emission increases by 1.79% at 75% load and 1.76% at full load than neat diesel operation. The negative impact of an increase in NOx is reduced by adding EGR. It was evidenced in this experimental work that the use of Brown's gas with EGR in the dual fuel mode in a diesel engine improves the fuel efficiency, performance, and reduces the exhaust emissions. PMID- 29043588 TI - Determination of element composition and extraterrestrial material occurrence in moss and lichen samples from King George Island (Antarctica) using reactor neutron activation analysis and SEM microscopy. AB - Seven lichens (Usnea antarctica and U. aurantiacoatra) and nine moss samples (Sanionia uncinata) collected in King George Island were analyzed using instrumental neutron activation analysis, and concentration of major and trace elements was calculated. For some elements, the concentrations observed in moss samples were higher than corresponding values reported from other sites in the Antarctica, but in the lichens, these were in the same range of concentrations. Scanning electron microscopy (SEM) and statistical analysis showed large influence of volcanic-origin particles. Also, the interplanetary cosmic particles (ICP) were observed in investigated samples, as mosses and lichens are good collectors of ICP and micrometeorites. PMID- 29043589 TI - Assessment of filtration efficiency and physiological responses of selected plant species to indoor air pollutants (toluene and 2-ethylhexanol) under chamber conditions. AB - Three common plant species (Dieffenbachia maculata, Spathiphyllum wallisii, and Asparagus densiflorus) were tested against their capacity to remove the air pollutants toluene (20.0 mg m-3) and 2-ethylhexanol (14.6 mg m-3) under light or under dark in chamber experiments of 48-h duration. Results revealed only limited pollutant filtration capabilities and indicate that aerial plant parts of the tested species are only of limited value for indoor air quality improvement. The removal rate constant ranged for toluene from 3.4 to 5.7 L h-1 m-2 leaf area with no significant differences between plant species or light conditions (light/dark). The values for 2-ethylhexanol were somewhat lower, fluctuating around 2 L h-1 m-2 leaf area for all plant species tested, whereas differences between light and dark were observed for two of the three species. In addition to pollutant removal, CO2 fixation/respiration and transpiration as well as quantum yield were evaluated. These physiological characteristics seem to have no major impact on the VOC removal rate constant. Exposure to toluene or 2-ethylhexanol revealed no or only minor effects on D. maculata and S. wallisii. In contrast, a decrease in quantum yield and CO2 fixation was observed for A. densiflorus when exposed to 2-ethylhexanol or toluene under light, indicating phytotoxic effects in this species. PMID- 29043590 TI - Adsorption and desorption for dynamics transport of hexavalent chromium (Cr(VI)) in soil column. AB - Batch experiments have been carried out to study the adsorption of heavy metals in soils, and the migration and transformation of hexavalent chromium (Cr(VI)) in the soil of a vegetable base were studied by dynamic adsorption and desorption soil column experiments. The aim of this study was to investigate the effect of initial concentration and pH value on the adsorption process of Cr(VI). Breakthrough curve were used to evaluate the capacity of Cr(VI) adsorption in soil columns. The results show that the higher the initial concentration, the worse the adsorption capacity of Cr(VI). The adsorption of Cr(VI) was strongly sensitive to pH value. The capacity of Cr(VI) adsorption is maximized at very low pH value. This may be due to changes in pH that cause a series of complex reactions in Cr(VI). In a strongly acidic environment, the reaction of Cr(VI) with hydrogen ions is accompanied by the formation of Cr3+, which reacts with the soil free iron-aluminum oxide to produce hydroxide in the soil. The results of the desorption experiments indicate that Cr(VI) is more likely to leach from this soil, but if the eluent is a strong acid solution, the leaching process will be slow and persistent. During the experiment, the pH value of the effluent was in the range of 7-8.5, which tends to the original pH value of the soil. It is indicating that the soil has a strong buffer on the acid liquid. The program CXTFIT was used to fit the breakthrough curve to estimate parameters. The results of the calculation of the dispersion coefficient (D) can be obtained by this program. The two-site model fit the breakthrough curve data of Cr(VI) well, and the parameters calculated by the CXTFIT can be used to explain the behavior of Cr(VI) migration and transformation in soil columns. When pH = 2, the retardation factor (R) reach at 79.71 while the value of the R is generally around 10 in other experiments. The partitioning coefficient beta shows that more than half of the adsorption sites are instantaneous in this adsorption process and non equilibrium affects the Cr(VI) transport process in this soil. PMID- 29043591 TI - Alternaria alternata (Fr.) Keissl with mutation G143A in the Cyt b gene is the source of a difficult-to-control allergen. AB - The saprotrophic fungus Alternaria alternata is widespread in the agro environment and produces more than ten allergenic proteins, mostly protein Alt a 1. The frequency of the Alt a 1 gene was analyzed in a group of A. alternata isolates from winter wheat kernels obtained in Poland, and the effectiveness of various fungicides targeting the pathogen was evaluated. The Alt a 1 gene was identified in four of the seven tested isolates. A. alternata colonized 35.67% kernels on average, but its frequency increased in stored grain where the presence of epiphytes was noted on 23.09 to 51.38% kernels, and endophytes-in 26.21 to 42.01% of kernels. The efficacy of field-applied fungicides did not exceed 50%, despite the fact that A. alternata is highly sensitive to propiconazole, fenpropimorph, and tebuconazole under in vitro conditions. The analyzed isolates were characterized by limited sensitivity to azoxystrobin (EC50 ranged from 0.505 to 1.350 MUg cm-3) due to a mutation at codon 143 of the CYT b gene, responsible for resistance to quinone outside inhibitor fungicides, which was noted in all isolates. The spread of A. alternata can be effectively controlled with suitable fungicides and by monitoring the prevalence of pathogenic isolates in the environment. PMID- 29043592 TI - Factors Associated with Surveillance Adenoma and Sessile Serrated Polyp Detection Rates. AB - BACKGROUND: Adenoma detection rate (ADR) and sessile serrated polyp detection rate (SSPDR) data in surveillance colonoscopy are limited. AIMS: Our aim was to determine surveillance ADR and SSPDR and identify associated predictors. METHODS: A retrospective review of subjects who underwent surveillance colonoscopy for adenoma and/or SSP at an academic center was performed. The following exclusion criteria were applied: prior colonoscopy <= 3 years, incomplete examination, or another indication for colonoscopy. Patient, endoscopist, and procedure characteristics were collected. Predictors were identified using multivariable logistic regression. RESULTS: Of 3807 colonoscopies, 2416 met inclusion criteria. Surveillance ADR was 49% and, SSPDR was 8%. Higher ADR was associated with: age per year (OR 1.03; 95% CI 1.02-1.04), male gender (OR 1.55; 95% CI 1.29-1.88), BMI per kg/m2 (OR 1.02; 95% CI 1.01-1.04), withdrawal time per minute (OR 1.09; 95% CI 1.07-1.10), and endoscopists' screening ADR (OR 1.01; 95% CI 1.00-1.03). Years since training (OR 0.99; 95% CI 0.98-0.99) was associated with lower ADR. Family history of CRC (OR 1.58; 95% CI 1.02-2.27) and endoscopists' screening ADR (OR 1.40; 95% CI 1.15-1.74) were associated with higher SSPDR. African-American race (OR 0.36; 95% CI 0.10-0.75) and diabetes (OR 0.41; 95% CI 0.21-0.76) were associated with lower SSPDR. CONCLUSIONS: For surveillance colonoscopy, nearly half of patients had an adenoma and one in twelve had an SSP. In addition to established factors, BMI, endoscopists' screening ADR, and years since training were associated with ADR, whereas African-American race and diabetes were inversely associated with SSPDR. Further studies are needed prior to integrating surveillance ADR and SSPDR into quality metrics. PMID- 29043593 TI - Fecal Calprotectin in Monitoring the Disease Activity in Colonic Inflammatory Bowel Disease. PMID- 29043594 TI - Specialty Care Access Network-Extension of Community Healthcare Outcomes Model Program for Liver Disease Improves Specialty Care Access. AB - BACKGROUND AND AIMS: To improve subspecialty access, VA Ann Arbor Healthcare System (VAAAHS) implemented the first Specialty Care Access Network (SCAN) Extension of Community Healthcare Outcomes (ECHO) in chronic liver disease. SCAN ECHO Liver links primary care providers (PCPs) to hepatologists via secure video teleconferencing. We aim to describe characteristics of participants (PCPs) and patients (clinical question and diagnosis) in SCAN-ECHO Liver. METHODS: This is a prospective study of the VAAAHS SCAN-ECHO Liver (June 10, 2011-March 31, 2015). This evaluation was carried out as a non-research activity under the guidance furnished by VHA Handbook 1058.05. It was approved through the Medicine Service at VAAAHS as noted in the attestation document which serves as documentation of approved non-research, quality improvement activities in VHA. RESULTS: In total, 106 PCPs from 23 sites participated. A total of 155 SCAN-ECHO sessions discussed 519 new and 49 return patients. 29.4% of Liver Clinic requests were completed in SCAN-ECHO Liver. SCAN-ECHO Liver consults were completed an average of 10 days sooner than in conventional clinic. Potential travel saving was 250 miles round trip (median 255 (IQR 142-316) per patient. CONCLUSION: SCAN-ECHO Liver provided specialty care with increased efficiency and convenience for chronic liver disease patients. One of three of Liver Clinic consults was diverted to SCAN-ECHO Liver, reducing consult completion time by 20%. PMID- 29043595 TI - Stress Hormone Cortisol Enhances Bcl2 Like-12 Expression to Inhibit p53 in Hepatocellular Carcinoma Cells. AB - BACKGROUND AND AIMS: The pathogenesis of hepatocellular carcinoma (HC) is unclear. It is suggested that psychological stress associates with the pathogenesis of liver cancer. Bcl2-like protein 12 (Bcl2L12) suppresses p53 protein. This study tests a hypothesis that the major stress hormone, cortisol, inhibits the expression of p53 in HC cells (HCC) via up regulating the expression of Bcl2L12. METHODS: Peripheral blood samples were collected from patients with HC to be analyzed for the levels of cortisol. HCC were cultured to assess the role of cortisol in the regulation of the expression of Bcl2L12 and p53 in HCC. RESULTS: We observed that the serum cortisol levels were higher in HC patients. Expression of Bcl2L12 in HCC was correlated with serum cortisol. Cortisol enhanced the Bcl2L12 expression in HCC. Bcl2L12 binding to the TP53 promoter was correlated with p53 expression in HCC. Cortisol increased the Bcl2L12 expression in HCC to inhibit p53 expression. CONCLUSIONS: Stress hormone cortisol suppresses p53 in HCC via enhancing Bcl2L12 expression in HCC. The results suggest that cortisol may be a therapeutic target for the treatment of HC. PMID- 29043596 TI - Short-term Prospective Questionnaire Study of Early Postoperative Quality of Life After Colorectal Endoscopic Submucosal Dissection. AB - BACKGROUND: Endoscopic submucosal dissection (ESD) has become popular as an alternative to laparoscopy-assisted colectomy (LAC) for early colorectal cancer. AIM: To validate postoperative quality of life (QOL) based on subjective symptoms of patients from questionnaire survey. METHODS: We prospectively enrolled patients planned to undergo ESD for adenoma or Tis/T1a cancer at our institution between December 2011 and January 2013. Controls were prospectively enrolled LAC patients diagnosed with T1b cancer. Patients answered questionnaire survey on QOL on postoperative day (POD) 1 and POD14. Questions were scored using visual analog scale (0 points = worst condition, 100 points = best condition) and were classified into six categories: health status, mental status (MeS), motor status (MoS), bodily painless, passage and anorectal function (PAF), and stress for the treatment. Total score was also calculated. We compared the median scores among categories using the Wilcoxon rank-sum test. RESULTS: A total of 82 ESDs and 41 LACs were included. Median score for the factors in questionnaire (POD1/POD14) in ESDs versus LACs for colonic lesion (rectal lesion) was as follows: MeS, 74/83 versus 54/73 (72/85 vs. 42/62); MoS, 98/96 versus 51/75 (95/90 vs. 66/67); PAF, 90/96 versus 80/80 (90/95 vs. 70/53); total score, 83/91 versus 58/75 (81/87 vs. 51/66). These items showed statistical significant differences between ESDs and LACs. CONCLUSIONS: Postoperative QOL and symptoms are significantly better on POD1 and POD14 following ESD compared with LAC. PMID- 29043597 TI - Do holocentric chromosomes represent an evolutionary advantage? A study of paired analyses of diversification rates of lineages with holocentric chromosomes and their monocentric closest relatives. AB - Despite most of the cytogenetic research is focused on monocentric chromosomes, chromosomes with kinetochoric activity localized in a single centromere, several studies have been centered on holocentric chromosomes which have diffuse kinetochoric activity along the chromosomes. The eukaryotic organisms that present this type of chromosomes have been relatively understudied despite they constitute rather diversified species lineages. On the one hand, holocentric chromosomes may present intrinsic benefits (chromosome mutations such as fissions and fusions are potentially neutral in holocentrics). On the other hand, they present restrictions to the spatial separation of the functions of recombination and segregation during meiotic divisions (functions that may interfere), separation that is found in monocentric chromosomes. In this study, we compare the diversification rates of all known holocentric lineages in animals and plants with their most related monocentric lineages in order to elucidate whether holocentric chromosomes constitute an evolutionary advantage in terms of diversification and species richness. The results showed that null hypothesis of equal mean diversification rates cannot be rejected, leading us to surmise that shifts in diversification rates between holocentric and monocentric lineages might be due to other factors, such as the idiosyncrasy of each lineage or the interplay of evolutionary selections with the benefits of having either monocentric or holocentric chromosomes. PMID- 29043598 TI - Anti-human immunodeficiency virus-1 activities of pratensein and pratensein glycoside from Alhaji maurorum and its parasite Cuscuta kotchiana. AB - OBJECTIVE: To test the anti-human immunodeficiency virus (HIV) activity of pure compounds isolated from aerial part extracts of Alhaji maurorum and its parasite Cuscuta kotchiana. METHODS: The anti-HIV-1 and anti-HIV-2 activities of these extracts were performed by use of quantitative polymerase chain reaction assay and high pure viral nucleic acid kit. The most active fractions against HIV-1 were detected by nuclear magnetic resonance as pratensein and pratensein glycoside respectively in A. maurorum and C. campestris. RESULTS: These two extracts have low toxicity on HIV-2 replication. The 50% effective concentration for HIV-1 replication of pratensein and pratensein glycoside were 100 and 22 MUg/mL, respectively. The time of addition assay showed that pratensein and pratensein glycoside were most effective when added at the early stage (0-4 h) of virus replication. CONCLUSION: The pratensein glycoside inhibits HIV-1 replication in host cells more than pratensein and both extracts are potent inhibitors of HIV-1 entry. PMID- 29043599 TI - Shenyi Capsule () plus Chemotherapy versus Chemotherapy for Non-Small Cell Lung Cancer: A Systematic Review of Overlapping Meta-Analyses. AB - OBJECTIVE: To assist decision-makers interpret and choose among conflfl icting meta-analyses, as well as to offer treatment recommendations based on current best evidence by performing a systematic review of overlapping meta-analyses regarding Shenyi Capsule (, SC) plus chemotherapy versus chemotherapy of non small cell lung cancer (NSCLC). METHODS: A literature search was conducted to select systematic reviews comparing SC plus chemotherapy with chemotherapy for NSCLC. Meta-analyses only composed of randomized controlled trials (RCTs) met the inclusion criteria. Two authors individually estimated the quality of meta analysis and extracted data. The Jadad decision algorithm was applied to guarantee which meta-analysis provided the best original evidence. RESULTS: A total of 5 meta-analyses were included. All the studies composed of RCTs or quasi RCTs and were regarded as level-II evidence. The scores of the Assessment of Multiple Systematic Reviews ranged from 3 to 6 (median 4). A high-quality meta analysis with more RCTs was chosen, which suggested that SC plus chemotherapy could increase incidence of short-term efficacy, improve the quality of life and survival rate in comparison to chemotherapy. However, there was no statistically significant difference between SC plus chemotherapy and chemotherapy regarding chemotherapy-induced side effect, such as liver and kidney function obstacle, leukopenia, hemoglobin decrement and gastrointestinal adverse reaction. CONCLUSIONS: Based on the best available evidence, treatment effect of SC plus chemotherapy was better than chemotherapy and did not increase side effects. Therefore, SC plus chemotherapy may be superior to chemotherapy for treating NSCLC. However, due to some limitations, SC plus chemotherapy should be cautiously considered, and further high-quality meta-analyses are needed. PMID- 29043600 TI - Effects of ultrasound-guided stellate-ganglion block on sleep and regional cerebral oxygen saturation in patients undergoing breast cancer surgery: a randomized, controlled, double-blinded trial. AB - Numerous factors could contribute to sleep disturbances in women with breast cancer. We hypothesized that stellate ganglion block (SGB) during surgery would preserve sleep after surgery and increase intraoperative regional cerebral oxygen saturation (rSO2) on the blocked side in patients undergoing breast cancer surgery. A randomized, double-blinded, controlled trial was conducted at the First Hospital of China Medical University from January 2016 to September 2016. Ninety-six patients who underwent radical breast cancer surgery requiring general anaesthesia were randomly assigned to one of two study groups: a control group that received a saline SGB and a block group that received a 0.25% ropivacaine hydrochloride SGB. The primary outcome measure was the postoperative sleep profile, which was assessed using the bispectral index on the first postoperative night. The secondary outcome measure was the intraoperative rSO2, monitored was throughout surgery using near-infrared spectroscopy. A total of 91 female patients (mean age: 45 years; range 24-51 years) were included in the study. The duration of sleep was significantly increased by 66.3 min in the ropivacaine-SGB group compared with the saline-SGB group. No differences in rSO2 were observed on either the left or right side of the patients in either group 50 min after anaesthesia induction. We conclude that ropivacaine-SGB combined with general anaesthesia might increase the first postoperative sleep duration without influencing the intraoperative rSO2 in female patients undergoing elective breast cancer surgery. Clinical trials.gov identifier NCT02651519. PMID- 29043602 TI - Fluorinated pyrrole incorporated 2-thiazolyl hydrazone motifs: a new class of antimicrobial and anti tuberculosis agents. AB - In aim of obtaining novel bio-active compounds, a new series of fluorinated 1-(4 (aryl)thiazol-2-yl)-2-((1-(aryl)-2,5-dimethyl-1H-pyrrol-3-yl)methylene)hydrazines (5a-t) and 1-(4-(4-aryl)thiazol-2-yl)-2-((3-(2,4-dichlorophenyl)-1-phenyl-1H pyrazol-4-yl)methylene)hydrazines (8a-d) were synthesized and screened for their antibacterial and antifungal activities. The potent compounds were further screened in vitro for anti-tuberculosis activity against Mycobacterium tuberculosis H37Rv strain. Compounds 5a, 5c-5h and 5m were found to be good inhibitors of B. subtilis with MIC ranging from 0.2 to 0.8 ug mL-1, which are nearly three to ten times more potent than the standard drug Ciprofloxacin. Compounds 5a, 5h-5k and 5o exhibited potent antifungal activity against C. albicans strain with MIC ranging from 0.4 to 1.6 ug mL-1. Compounds 8a-8c were found to be excellent inhibitors of A. niger. Compounds 5a and 5k showed significant anti tubercular activity with MIC 3.12 and 6.25 ug mL-1 respectively. Furthermore, highly active compounds were tested for their preliminary toxicity profile by hemolytic assay and were found to be non hemolytic at higher concentration with good selectivity index. Cytotoxicity of the potent compounds 5a, 5d, 5g, 5i and 5k was checked by MTT assay using normal embryonic kidney cell line HEK 293 and found to be non-toxic up to 50-200 times the MIC for antibacterial activity. PMID- 29043601 TI - Pupillary reflex dilation in response to incremental nociceptive stimuli in patients receiving intravenous ketamine. AB - Pupillometry is a non-invasive monitoring technique, which allows dynamic pupillary diameter measurement by an infrared camera. Pupillary diameter increases in response to nociceptive stimuli. In patients anesthetized with propofol or volatile agents, the magnitude of this pupillary dilation is related to the intensity of the stimulus. Pupillary response to nociceptive stimuli has never been studied under ketamine anesthesia. Our objective was to describe pupillary reflex dilation after calibrated tetanic stimulations in patients receiving intravenous ketamine. After written consent, 24 patients of our pediatric burn care unit were included. They received an oral morphine premedication (0.3 mg kg-1) 1 h before their scheduled daily dressing change. Just before the procedure, they received 1 mg kg-1 of intravenous ketamine. Two minutes after this bolus, tetanic stimulations of incremental intensities were performed on the arm of each patient (5-10-20-30-40-60 mA, 60 s interval between stimulations). Pupillary diameter, heart rate and movements were recorded before and after each stimulation. Tetanic stimulations were associated with changes in pupillary diameter and heart rate. The magnitude of these changes was significantly influenced by the intensity of stimulation (ANOVA for repeated measures, p < 0.001). Movement was associated with a 32% increase in diameter (ROC curves, AUC 0.758) with 65% sensitivity and 77% specificity. In children, pupillary reflex dilation to nociceptive stimuli persists under deep sedation obtained with 1 mg kg-1 of intravenous ketamine combined with a 0.3 mg kg-1 oral morphine premedication, and its magnitude depends on the intensity of the stimulation. Our results confirm that pupillometry could be a relevant way to monitor nociception in anaesthetised subjects, including those receiving ketamine. Trial registration clinicaltrials.gov, NCT 02648412. PMID- 29043603 TI - Epigenetic modifications of gene expression by lifestyle and environment. AB - Epigenetics oftenly described as the heritable changes in gene expression independent of changes in DNA sequence. Various environmental factors such as nutrition-dietary components, lifestyle, exercise, physical activity, toxins, and other contributing factors remodel the genome either in a constructive or detrimental way. Since epigenetic changes are reversible and nutrition is one of the many epigenetic regulators that modify gene expression without changing the DNA sequence, dietary nutrients and bioactive food components contribute to epigenetic phenomena either by directly suppressing DNA methylation or histone catalyzing enzymes or by changing the availability of substrates required for enzymatic reactions. Diets that contain catechol-dominant polyphenols are reported to suppress enzyme activity and activate epigenetically silenced genes. Furthermore, several dietary nutrients play a crucial role in one-carbon metabolism including folate, cobalamin, riboflavin, pyridoxine, and methionine by directly affecting S-adenosyl-L-methionine. Soy polyphenols block DNA methyltransferases and histone deacetylases to reverse aberrant CpG island methylation. Organosulfur rich compounds such as the sulforaphane found in broccoli appear to normalize DNA methylation and activate miR-140 expression, which represses SOX9 and ALDH1 and decreases tumor growth. The purpose of this short communication is to overview the epigenetic regulatory mechanisms of diet and other environmental factors. We discuss the epigenetic contributions of dietary components with a particular focus on nutritional polyphenols and flavonoids as epigenetic mediators that modify epigenetic tags and control gene expression. These mechanisms provide new insights to better understand the influence of dietary nutrients on epigenetic modifications and gene expression. PMID- 29043604 TI - First Steps towards the Pharmaceutical Development of Ovules Containing Lactobacillus Strains: Viability and Antimicrobial Activity as Basic First Parameters in Vaginal Formulations. AB - In the majority of Latin-American countries, including Argentina, there is a limited availability of vaginal bioproducts containing probiotics in the market. In addition, the conventional treatments of genital tract infections in women represent a high cost to the public health systems. The future development of this type of bioproducts that employ specific lactobacilli strains would not only have a meaningful impact on women's health but would also represent a significant challenge to the pharmaceutical industry. The aims of the work described in this paper were (i) to study different pharmaceutical formulations of vaginal ovules containing Lactobacillus fermentum L23 and L. rhamnosus L60, to determine in which formulation lactobacilli viability was sustained for longer time and (ii) to evaluate if probiotic strains maintained both the antimicrobial activity and biofilm-producing ability after being recovered from the ovules. In this study, we developed and characterized three pharmaceutical formulations containing different glycerol amounts and specific lactobacilli strains. Three relevant parameters, cell viability, antimicrobial activity, and biofilm production, by lactobacilli recovered from the ovules were tested. Although the viability of L23 and L60 strains was mainly influenced by high ovule's glycerol proportion, they survived at 4 degrees C during the 180 days. Both lactobacilli's antimicrobial activity and biofilm-producing ability were maintained for all treatments. In conclusion, employing a much reduced number of components, we were able to select the most suitable pharmaceutical formulation which maintained not only lactobacilli viability for a long period of time but also their antimicrobial activity and biofilm-producing ability. PMID- 29043605 TI - Liquid Nanosize Emulsion-Filled Enteric-Coated Capsules for Colon Delivery of Immunosuppressant Peptide. AB - Present study aims at solubilizing slightly water-soluble peptide into a nanosize emulsion which is filled into a hard gelatin capsule in the form of preconcentrate. Further, liquid-filled capsule was dip-coated with ethyl cellulose and Eudragit S100 for colon targeting. An in vitro release profile was studied for selected formulations, i.e., Formulation A (5 mg ethyl cellulose and 40 mg Eudragit S100), Formulation B (10 mg ethyl cellulose and 30 mg Eudragit S100), and Formulation C (10 mg ethyl cellulose and 20 mg Eudragit S100). Formulations B and A showed an immediate release after 5 and 6 h, respectively, which represents ileo-ceacal transit time. The nanosize of emulsion, i.e., below 100 nm, was confirmed by transmission electron microscopy. Also, a phase transition of nanosize emulsion from water in oil to oil in water on dilution with water was observed through TEM. This novel approach of filling poorly water soluble protein in solubilized form of nanosize emulsion preconcentrate into coated hard gelatin capsules for colon targeting has been reported first time. This approach could be a breakthrough for the better management of local intestinal pathologies. PMID- 29043606 TI - Optimizing echo guidance during MitraClip using fluoroscopy: how to see better! PMID- 29043607 TI - DDR2 and IFITM1 Are Prognostic Markers in Gallbladder Squamous Cell/Adenosquamous Carcinomas and Adenocarcinomas. AB - This study was conducted to investigate the expressions of DDR2 and IFITM1 and their clinical and pathological significances in the rare type squamous cell/adenosquamous carcinomas (SC/ASC) and ordinary adenocarcinomas (AC) of gallbladder cancers. DDR2 and IFITM1 expression was examined in 69 SC/ASCs and 146 ACs using EnVision immunohistochemistry. Results showed that the percentage of positive DDR2 and IFITM1 expression was significantly higher in SC/ASC patients with high TNM stage, lymph node metastasis, invasion, and no resection surgery compared to patients with low TNM stages, no lymph node metastasis, no invasion, and resection surgery (P < 0.05 or P < 0.01). The positive rate of DDR2 was significantly higher in SC/ASC patients with large tumor sizes than patients with small tumor sizes (p < 0.05). The percentage of positive DDR2 and IFITM1 expressions was significantly higher in AC patients with high TNM stages that didn't receive resection surgery compared to patients with low TNM stages that did receive resection surgery (P < 0.05 or P < 0.01). The positive rate of IFITM1 was significantly higher in AC patients with lymph node metastasis and invasion than in patients without metastasis and invasion (p < 0.05). Positive DDR2 and IFITM1 expression was closely associated with a decreased overall survival in SC/ASC and AC patients (P < 0.05 or P < 0.01). AUC analysis showed that DDR2 and IFITM1 was sensitive and specific for the diagnosis of SC/ASC (AUC = 0.740 and AUC =0.733, respectively) and AC (AUC = 0.710 and AUC =0.741, respectively). In conclusion, positive DDR2 and IFITM1 expression is a marker for the clinical severity, poor prognosis, and diagnosis of gallbladder SC/ASC and AC. PMID- 29043608 TI - Limitations of high throughput methods for miRNA expression profiles in non functioning pituitary adenomas. AB - Microarray, RT-qPCR based arrays and next-generation-sequencing (NGS) are available high-throughput methods for miRNA profiling (miRNome). Analytical and biological performance of these methods were tested in identification of biologically relevant miRNAs in non-functioning pituitary adenomas (NFPA). miRNome of 4 normal pituitary (NP) and 8 NFPA samples was determined by these platforms and expression of 21 individual miRNAs was measured on 30 (20 NFPA and 10 NP) independent samples. Complex bioinformatics was used. 132 and 137 miRNAs were detected by all three platforms in NP and NFPA, respectively, of which 25 were differentially expressed (fold change > 2). The strongest correlation was observed between microarray and TaqMan-array, while the data obtained by NGS were the most discordant despite of various bioinformatics settings. As a technical validation we measured the expression of 21 selected miRNAs by individual RT-qPCR and we were able to validate 35.1%, 76.2% and 71.4% of the miRNAs revealed by SOLiD, TLDA and microarray result, respectively. We performed biological validation using an extended number of samples (20 NFPAs and 8 NPs). Technical and biological validation showed high correlation (p < 0.001; R = 0.96). Pathway and network analysis revealed several common pathways but no pathway showed the same activation score. Using the 25 platform-independent miRNAs developmental pathways were the top functional categories relevant for NFPA genesis. The difference among high-throughput platforms is of great importance and selection of screening method can influence experimental results. Validation by another platform is essential in order to avoid or to minimalize the platform specific errors. PMID- 29043610 TI - Transient focal neurologic deficits upon hematopoietic stem cell transplantation: just a coincidence? PMID- 29043609 TI - The Fat of the Matter: Obesity and Visceral Adiposity in Treated HIV Infection. AB - PURPOSE OF REVIEW: The aim of this review is to summarize knowledge of the prevalence, relevant physiology, and consequences of obesity and visceral adiposity in HIV-infected adults, including highlighting gaps in current knowledge and future research directions. RECENT FINDINGS: Similar to the general population, obesity prevalence is increasing among HIV-infected persons, and obesity and visceral adiposity are associated with numerous metabolic and inflammatory sequelae. However, HIV- and antiretroviral therapy (ART)-specific factors may contribute to fat gain and fat quality in treated HIV infection, particularly to the development of visceral adiposity, and sex differences may exist. Obesity and visceral adiposity commonly occur in HIV-infected persons and have significant implications for morbidity and mortality. Future research should aim to better elucidate the HIV- and ART-specific contributors to obesity and visceral adiposity in treated HIV infection, with the goal of developing targeted therapies for the prevention and treatment of obesity and visceral adiposity in the modern ART era. PMID- 29043611 TI - Quantifying anthropogenic threats to orchids using the IUCN Red List. AB - Orchids are diverse, occur in a wide range of habitats and dominate threatened species lists, but which orchids are threatened, where and by what? Using the International Union for Conservation of Nature Red List, we assessed the range and diversity of threats to orchids globally including identifying four threat syndromes: (1) terrestrial orchids in forests that are endemic to a country and threatened by illegal collecting; (2) orchids threatened by climate change, pollution, transportation and disturbance/development for tourism, and recreation activities, often in East Asia; (3) epiphytic orchids in Sub-Saharan Africa including Madagascar with diverse threats; and (4) South and Southeast Asia orchids threatened by land clearing for shifting agriculture. Despite limitations in the Red List data, the results highlight how conservation efforts can focus on clusters of co-occurring threats in regions while remaining aware of the trifecta of broad threats from plant collecting, land clearing and climate change. PMID- 29043612 TI - The A-Like Faker Assay for Measuring Yeast Chromosome III Stability. AB - The ability to rapidly assess chromosome instability (CIN) has enabled profiling of most yeast genes for potential effects on genome stability. The A-like faker (ALF) assay is one of several qualitative and quantitative marker loss assays that indirectly measure loss or conversion of genetic material using a counterselection step. The ALF assay relies on the ability to count spurious mating events that occur upon loss of the MATalpha locus of haploid Saccharomyces cerevisiae strains. Here, we describe the deployment of the ALF assay for both rapid and simple qualitative, and more in-depth quantitative analysis allowing determination of absolute ALF frequencies. PMID- 29043613 TI - The Chromosome Transmission Fidelity Assay for Measuring Chromosome Loss in Yeast. AB - The budding yeast Saccharomyces cerevisiae has served as an excellent model system for studying highly conserved biological pathways including pathways involved in genome transmission and maintenance. The Chromosome Transmission Fidelity (CTF) colony color assay was developed to assess chromosome instability (CIN) in yeast, by monitoring the loss or gain during cell division of an artificial chromosome fragment carrying a visual marker. The CTF assay monitors changes in chromosome number, allowing the detection of mutants that exhibit increased rates of chromosome nondisjunction or chromosome loss. In this article, we describe the SUP11-marker-based CTF assay system, and the methodologies for both qualitative analysis of mutants affecting chromosome transmission, and quantitative analysis for determining the types and rates of errors in chromosome transmission using half-sector analysis. PMID- 29043614 TI - Measuring Mutation Rates Using the Luria-Delbruck Fluctuation Assay. AB - The Luria-Delbruck fluctuation assay is one of the most commonly used methods for measuring the mutation rate in microorganisms. Specifically, it is used to measure the mutation rate at a particular locus or loci at which mutations give rise to a selectable phenotype. Here, I outline the essential features of performing Luria-Delbruck fluctuation assays as well as common missteps and tips for improving the accuracy of mutation rate estimates. In addition, I provide tools for analyzing data from fluctuation assays. This 96-well plate protocol has been optimized for use in yeast but should perform equally well for a range of microorganisms using standard microbiological methods. PMID- 29043615 TI - Molecular Genetic Characterization of Mutagenesis Using a Highly Sensitive Single Stranded DNA Reporter System in Budding Yeast. AB - Mutations are permanent alterations to the coding content of DNA. They are starting material for the Darwinian evolution of species by natural selection, which has yielded an amazing diversity of life on Earth. Mutations can also be the fundamental basis of serious human maladies, most notably cancers. In this chapter, I describe a highly sensitive reporter system for the molecular genetic analysis of mutagenesis, featuring controlled generation of long stretches of single-stranded DNA in budding yeast cells. This system is ~100- to ~1000-fold more susceptible to mutation than conventional double-stranded DNA reporters, and is well suited for generating large mutational datasets to investigate the properties of mutagens. PMID- 29043616 TI - Analyzing Genome Rearrangements in Saccharomyces cerevisiae. AB - Genome rearrangements underlie different human diseases including many cancers. Determining the rates at which genome rearrangements arise and isolating unique, independent genome rearrangements is critical to understanding the genes and pathways that prevent or promote genome rearrangements. Here, we describe quantitative S. cerevisiae genetic assays for measuring the rates of accumulating genome rearrangements including deletions, translocations, and broken chromosomes healed by de novo telomere addition that result in the deletion of two counter selectable genes, CAN1 and URA3, placed in the nonessential regions of the S. cerevisiae genome. The assays also allow for the isolation of individual genome rearrangements for structural studies, and a method for analyzing genome rearrangements by next-generation DNA sequencing is provided. PMID- 29043617 TI - High-Resolution Mapping of Modified DNA Nucleobases Using Excision Repair Enzymes. AB - Modification of DNA nucleobases has a profound effect on genome function. We developed a method that maps the positions of the modified DNA nucleobases throughout genomic DNA. This method couples in vitro nucleobase excision with massively parallel DNA sequencing to determine the location of modified DNA nucleobases with single base precision. This protocol was used to map uracil incorporation and UV photodimers in DNA, and a modification of the protocol has been used to map sparse modification events in cells. The Excision-seq protocol is broadly applicable to a variety of base modifications for which an excision enzyme is available. PMID- 29043618 TI - Integrated Microarray-based Tools for Detection of Genomic DNA Damage and Repair Mechanisms. AB - The genetic information contained within the DNA molecule is highly susceptible to chemical and physical insult, caused by both endogenous and exogenous sources that can generate in the order of thousands of lesions a day in each of our cells (Lindahl, Nature 362(6422):709-715, 1993). DNA damages interfere with DNA metabolic processes such as transcription and replication and can be potent inhibitors of cell division and gene expression. To combat these regular threats to genome stability, a host of DNA repair mechanisms have evolved. When DNA lesions are left unrepaired due to defects in the repair pathway, mutations can arise that may alter the genetic information of the cell. DNA repair is thus fundamental to genome stability and defects in all the major repair pathways can lead to cancer predisposition. Therefore, the ability to accurately measure DNA damage at a genomic scale and determine the level, position, and rates of removal by DNA repair can contribute greatly to our understanding of how DNA repair in chromatin is organized throughout the genome. For this reason, we developed the 3D-DIP-Chip protocol described in this chapter. Conducting such measurements has potential applications in a variety of other fields, such as genotoxicity testing and cancer treatment using DNA damage inducing chemotherapy. Being able to detect and measure genomic DNA damage and repair patterns in individuals following treatment with chemotherapy could enable personalized medicine by predicting response to therapy. PMID- 29043619 TI - Study of UV-induced DNA Repair Factor Recruitment: Kinetics and Dynamics. AB - The local UV irradiation technique enables detection, kinetic measurements of recruitment, and quantification of DNA Damage Response (DDR) proteins at the site of UV-induced DNA damage.Using Isopore filters with high density pores of a broad range of sizes, it is possible to UV irradiate and damage only a very small portion of the nucleus of a cell by letting UV light pass only through the pores. Immunofluorescent analyses of modified DNA nucleotides, proteins, or fluorescently tagged versions of target factors can be used as markers to label and study UV-induced lesions and their repair. PMID- 29043620 TI - Inserting Site-Specific DNA Lesions into Whole Genomes. AB - Here, we describe a methodology that allows the insertion of site-specific DNA lesions into genomes in living cells. The technique involves the integration of a plasmid containing a site-specific lesion engineered in vitro into a precise location in the genome via the site-specific recombination reaction from phage lambda. The notion of DNA lesion is not restricted to chemically modified nucleotides but also refers to unusual DNA structures. This method will be instrumental to study qualitatively and quantitatively the genetic consequences of site-specific lesions in vivo; moreover, it does also allow analyzing the molecular structure of stalled replication forks at well-defined locations. PMID- 29043621 TI - A qPCR-Based Protocol to Quantify DSB Resection. AB - The nucleolytic degradation of the 5'-ending strand of a Double-Strand DNA break (DSB) is necessary to initiate homologous recombination to correctly repair the break. This process is called DNA end resection and it is finely regulated to prevent genome rearrangements. Here, we describe a protocol to quantify DSB resection rate by qPCR, which could be applied to every organisms whenever the break site and its flanking region sequences are known. PMID- 29043622 TI - Alkaline Denaturing Southern Blot Analysis to Monitor Double-Strand Break Processing. AB - Generation of 3' single-stranded DNA (ssDNA) tails at the ends of a double-strand break (DSB) is essential to repair the break through accurate homology-mediated repair pathways. Several methods have been developed to measure ssDNA accumulation at a DSB in the budding yeast Saccharomyces cerevisiae. Here, we describe one of these assays, which is based on the inability of restriction enzymes to cleave ssDNA. Digestion of genomic DNA prepared at different time points after DSB generation leads to the formation of ssDNA fragments whose length increases as the 5' strand degradation proceeds beyond restriction sites. After the separation by electrophoresis on alkaline denaturing agarose gel, these ssDNA fragments can be visualized by hybridization with an RNA probe that anneals with the 3'-undegraded DSB strand. This assay allows a direct and comprehensive visualization of DSB end processing. PMID- 29043623 TI - Single Molecule Analysis of Resection Tracks. AB - Homologous recombination is initiated by the so-called DNA end resection, the 5' 3' nucleolytic degradation of a single strand of the DNA at each side of the break. The presence of resected DNA is an obligatory step for homologous recombination. Moreover, the amount of resected DNA modulates the prevalence of different recombination pathways. In different model organisms, there are several published ways to visualize and measure with more or less detail the amount of DNA resected. In human cells, however, technical constraints hampered the study of resection at high resolution. Some information might be gathered from the study of endonuclease-created DSBs, in which the resection of breaks at known sites can be followed by PCR or ChIP. In this chapter, we describe in detail a novel assay to study DNA end resection in breaks located on unknown positions. Here, we use ionizing radiation to induce double-strand breaks, but the same approach can be used to monitor resection induced by different DNA damaging agents. By modifying the DNA-combing technique, used for high-resolution replication analyses, we can measure resection progression at the level of individual DNA fibers. Thus, we named the method Single Molecule Analysis of Resection Tracks (SMART). We use human cells in culture as a model system, but in principle the same approach would be feasible to any model organism adjusting accordingly the DNA isolation part of the protocol. PMID- 29043624 TI - Mapping DNA Breaks by Next-Generation Sequencing. AB - Here, we present two approaches to map DNA double-strand breaks (DSBs) and single strand breaks (SSBs) in the genome of human cells. We named these methods respectively DSB-Seq and SSB-Seq. We tested the DSB and SSB-Seq in HCT1116, human colon cancer cells, and validated the results using the topoisomerase 2 (Top2) poisoning agent etoposide (ETO). These methods are powerful tools for the direct detection of the physiological and pathological "breakome" of the DNA in human cells. PMID- 29043625 TI - Genome-Wide Profiling of DNA Double-Strand Breaks by the BLESS and BLISS Methods. AB - DNA double-strand breaks (DSBs) are major DNA lesions that are constantly formed during physiological processes such as DNA replication, transcription, and recombination, or as a result of exogenous agents such as ionizing radiation, radiomimetic drugs, and genome editing nucleases. Unrepaired DSBs threaten genomic stability by leading to the formation of potentially oncogenic rearrangements such as translocations. In past few years, several methods based on next-generation sequencing (NGS) have been developed to study the genome-wide distribution of DSBs or their conversion to translocation events. We developed Breaks Labeling, Enrichment on Streptavidin, and Sequencing (BLESS), which was the first method for direct labeling of DSBs in situ followed by their genome wide mapping at nucleotide resolution (Crosetto et al., Nat Methods 10:361-365, 2013). Recently, we have further expanded the quantitative nature, applicability, and scalability of BLESS by developing Breaks Labeling In Situ and Sequencing (BLISS) (Yan et al., Nat Commun 8:15058, 2017). Here, we first present an overview of existing methods for genome-wide localization of DSBs, and then focus on the BLESS and BLISS methods, discussing different assay design options depending on the sample type and application. PMID- 29043626 TI - DNA Replication Profiling Using Deep Sequencing. AB - Profiling of DNA replication during progression through S phase allows a quantitative snap-shot of replication origin usage and DNA replication fork progression. We present a method for using deep sequencing data to profile DNA replication in S. cerevisiae. PMID- 29043627 TI - Quantitative Bromodeoxyuridine Immunoprecipitation Analyzed by High-Throughput Sequencing (qBrdU-Seq or QBU). AB - Incorporation into DNA of nucleoside analogs like 5-bromo-2'-deoxyuridine (BrdU) is a powerful tool for in vivo studies of DNA synthesis during replication and repair. Immunoprecipitation of BrdU-labeled DNA analyzed by DNA sequencing (BrdU IP-seq) allows for genome-wide, sequence-specific tracking of replication origin and replication fork dynamics under different conditions, such as DNA damage and replication stress, and in mutant strains. We have recently developed a quantitative method for BrdU-IP-seq (qBrdU-seq) involving DNA barcoding to enable quantitative analysis of multiple experimental samples subjected to BrdU-IP-seq. After initial barcoding of multiple, individually BrdU-labeled genomic DNA samples, a pooling strategy is used for all subsequent steps including immunoprecipitation, amplification, and sequencing, which eliminates sample-to sample variability in these steps. Parallel processing of an aliquot of the pooled input sample provides a direct control for the normalization of the data and yields results that allow quantitative comparisons of the experimental samples. Though developed for the analysis of S. cerevisiae, this method should be directly adaptable to other model systems. PMID- 29043628 TI - Strand-Specific Analysis of DNA Synthesis and Proteins Association with DNA Replication Forks in Budding Yeast. AB - DNA replication initiates at DNA replication origins after unwinding of double strand DNA(dsDNA) by replicative helicase to generate single-stranded DNA (ssDNA) templates for the continuous synthesis of leading-strand and the discontinuous synthesis of lagging-strand. Therefore, methods capable of detecting strand specific information will likely yield insight into the association of proteins at leading and lagging strand of DNA replication forks and the regulation of leading and lagging strand synthesis during DNA replication. The enrichment and Sequencing of Protein-Associated Nascent DNA (eSPAN), which measure the relative amounts of proteins at nascent leading and lagging strands of DNA replication forks, is a step-wise procedure involving the chromatin immunoprecipitation (ChIP) of a protein of interest followed by the enrichment of protein-associated nascent DNA through BrdU immunoprecipitation. The isolated ssDNA is then subjected to strand-specific sequencing. This method can detect whether a protein is enriched at leading or lagging strand of DNA replication forks. In addition to eSPAN, two other strand-specific methods, (ChIP-ssSeq), which detects potential protein-ssDNA binding and BrdU-IP-ssSeq, which can measure synthesis of both leading and lagging strand, were developed along the way. These methods can provide strand-specific and complementary information about the association of the target protein with DNA replication forks as well as synthesis of leading and lagging strands genome wide. Below, we describe the detailed eSPAN, ChIP-ssSeq, and BrdU-IP-ssSeq protocols. PMID- 29043630 TI - Dynamic Architecture of Eukaryotic DNA Replication Forks In Vivo, Visualized by Electron Microscopy. AB - The DNA replication process can be heavily perturbed by several different conditions of genotoxic stress, particularly relevant for cancer onset and therapy. The combination of psoralen crosslinking and electron microscopy has proven instrumental to reveal the fine architecture of in vivo DNA replication intermediates and to uncover their remodeling upon specific conditions of genotoxic stress. The replication structures are stabilized in vivo (by psoralen crosslinking) prior to extraction and enrichment procedures, allowing their visualization at the transmission electron microscope. This chapter outlines the procedures required to visualize and interpret in vivo replication intermediates of eukaryotic genomic DNA, and includes an improved method for enrichment of replication intermediates, compared to previously used BND-cellulose columns. PMID- 29043629 TI - Analysis of Replicative Polymerase Usage by Ribonucleotide Incorporation. AB - Mapping the usage of replicative DNA polymerases has previously proved to be technically challenging. By exploiting mutant polymerases that incorporate ribonucleotides into the DNA with a significantly higher proficiency than their wild-type counterparts, we and others have developed methods that can identify what proportion of each DNA strand (i.e., the Watson and Crick strands) is replicated by a specific DNA polymerase. The incorporation of excess ribonucleotides by a mutated polymerase effectively marks, in each individual cells, the DNA strand that is replicated by that specific mutated polymerase. Changes to DNA polymerase usage can be examined at specific loci by Southern blot analysis while a global analysis of polymerase usage can be achieved by applying next-generation sequencing. This genome-wide data also provides a direct measure of replication origin efficiency and can be used to indirectly calculate replication timing. PMID- 29043631 TI - A Molecular Toolbox to Engineer Site-Specific DNA Replication Perturbation. AB - Site-specific arrest of DNA replication is a useful tool for analyzing cellular responses to DNA replication perturbation. The E. coli Tus-Ter replication barrier can be reconstituted in eukaryotic cells as a system to engineer an unscheduled collision between a replication fork and an "alien" impediment to DNA replication. To further develop this system as a versatile tool, we describe a set of reagents and a detailed protocol that can be used to engineer Tus-Ter barriers into any locus in the budding yeast genome. Because the Tus-Ter complex is a bipartite system with intrinsic DNA replication-blocking activity, the reagents and protocols developed and validated in yeast could also be optimized to engineer site-specific replication fork barriers into other eukaryotic cell types. PMID- 29043632 TI - Single Cell Gel Electrophoresis for the Detection of Genomic Ribonucleotides. AB - Single cell gel electrophoresis or comet assay enables the quantification of DNA damage such as single-strand or double-strand breaks on a single cell level. Here, we describe a variant of this method for the detection of ribonucleotides embedded in genomic DNA. Briefly, cells are embedded in agarose on a microscopic slide, lysed under high salt and alkaline conditions and then subjected to in situ treatment with E. coli RNase HII which nicks 5' to a ribonucleotide within the context of a DNA duplex thereby converting genomic ribonucleotides into strand breaks. After unwinding of genomic DNA using a highly alkaline buffer, electrophoresis under mild alkaline conditions is performed resulting in formation of comets due to migration of fragmented DNA toward the anode. Following SYBR Gold staining comets can be visualized by fluorescence microscopy. In this setting, the length and the intensity of comets formed reflect the level of genomic ribonucleotides present in a given cell. PMID- 29043633 TI - Measuring the Levels of Ribonucleotides Embedded in Genomic DNA. AB - Ribonucleotides (rNTPs) are incorporated into genomic DNA at a relatively high frequency during replication. They have beneficial effects but, if not removed from the chromosomes, increase genomic instability. Here, we describe a fast method to easily estimate the amounts of embedded ribonucleotides into the genome. The protocol described is performed in Saccharomyces cerevisiae and allows us to quantify altered levels of rNMPs due to different mutations in the replicative polymerase epsilon. However, this protocol can be easily applied to cells derived from any organism. PMID- 29043634 TI - Mapping Ribonucleotides Incorporated into DNA by Hydrolytic End-Sequencing. AB - Ribonucleotides embedded within DNA render the DNA sensitive to the formation of single-stranded breaks under alkali conditions. Here, we describe a next generation sequencing method called hydrolytic end sequencing (HydEn-seq) to map ribonucleotides inserted into the genome of Saccharomyce cerevisiae strains deficient in ribonucleotide excision repair. We use this method to map several genomic features in wild-type and replicase variant yeast strains. PMID- 29043635 TI - Detection of DNA-RNA Hybrids In Vivo. AB - DNA-RNA hybrids form naturally during essential cellular functions such as transcription and replication. However, they may be an important source of genome instability, a hallmark of cancer and genetic diseases. Detection of DNA-RNA hybrids in cells is becoming crucial to understand an increasing number of molecular biology processes in genome dynamics and function and to identify new factors and mechanisms responsible for disease in biomedical research. Here, we describe two different procedures for the reliable detection of DNA-RNA hybrids in the yeast Saccharomyces cerevisiae and in human cells: DNA-RNA Immunoprecipitation (DRIP) and Immunofluorescence. PMID- 29043636 TI - Analysis of De Novo Telomere Addition by Southern Blot. AB - Telomere length is maintained in most eukaryotes by the action of a specialized enzyme, the telomerase. However, the complexity of mechanisms regulating telomeric DNA length as well as the heterogeneity in length of each telomere in a population of cells has made it very difficult to understand how telomerase is regulated in vivo. Here, we describe a method developed in Saccharomyces cerevisiae to monitor the addition of telomeric sequences to a single newly generated telomere in vivo. The primary strain consists of a HO endonuclease cleavage site that is placed directly adjacent to an 81-base-pair stretch of telomeric DNA inserted into the ADH4 locus of chromosome VII. Upon cleavage by HO, the de novo DNA end is rapidly healed by the telomerase enzyme and the analysis of this process allows to gain a mechanistic understanding of how telomerase action is regulated in the cell. PMID- 29043637 TI - Assays to Study Repair of Inducible DNA Double-Strand Breaks at Telomeres. AB - The ends of linear chromosomes are constituted of repetitive DNA sequences called telomeres. Telomeres, nearby regions called subtelomeres, and their associated factors prevent chromosome erosion over cycles of DNA replication and prevent chromosome ends from being recognized as DNA double-strand breaks (DSBs). This raises the question of how cells repair DSBs that actually occur near chromosome ends. One approach is to edit the genome and engineer cells harboring inducible DSB sites within the subtelomeric region of different chromosome ends. This provides a reductionist and tractable genetic model system in which mechanisms mediating repair can be dissected via genetics, molecular biology, and microscopy tools. PMID- 29043638 TI - Telomerase RNA Imaging in Budding Yeast and Human Cells by Fluorescent In Situ Hybridization. AB - Telomerase, the enzyme that elongates telomeres in most eukaryotes, is a ribonucleoprotein complex composed of a reverse transcriptase catalytic subunit (TERT in human, Est2 in the budding yeast S. cerevisiae), regulatory factors and a noncoding RNA called hTERC (in human) or TLC1 (in budding yeast). Telomerase trafficking is a major process in the biogenesis and regulation of telomerase action at telomeres. Due to its higher signal-to-noise ratio, imaging of the telomerase RNA moiety is frequently used to determine telomerase intracellular localization. Here we describe how to image telomerase RNA in human and yeast cells using fluorescence in situ hybridization. PMID- 29043639 TI - Methods to Study Repeat Fragility and Instability in Saccharomyces cerevisiae. AB - Trinucleotide repeats are common in the human genome and can undergo changes in repeat length. Expanded CAG repeats have been linked to over 14 human diseases and are considered hotspots for breakage and genomic rearrangement. Here, we describe two Saccharomyces cerevisiae based assays that evaluate the rate of chromosome breakage that occurs within a repeat tract (fragility), and a PCR based assay to evaluate tract length changes (instability). The first fragility assay utilizes end-loss and subsequent telomere addition as the main mode of repair of a yeast artificial chromosome (YAC). The second fragility assay relies on the fact that a chromosomal break stimulates recombination-mediated repair. In addition to understanding the role of fragility at repetitive DNA sequences, both assays can be modified to evaluate instability of a CAG repeat using a PCR-based assay. All three assays have been essential in understanding the genetic mechanisms that cause chromosome breaks and tract-length changes at unstable repeats. PMID- 29043640 TI - Quantitative Analysis of the Rates for Repeat-Mediated Genome Instability in a Yeast Experimental System. AB - Instability of repetitive DNA sequences causes numerous hereditary disorders in humans, the majority of which are associated with trinucleotide repeat expansions. Here, we describe a unique system to study instability of triplet repeats in a yeast experimental setting. Using fluctuation assay and the novel program FluCalc we are able to accurately estimate the rates of large-scale expansions, as well as repeat-mediated mutagenesis and gross chromosomal rearrangements for different repeat sequences. PMID- 29043641 TI - Measuring Dynamic Behavior of Trinucleotide Repeat Tracts In Vivo in Saccharomyces cerevisiae. AB - Trinucleotide repeat (TNR) tracts are inherently unstable during DNA replication, leading to repeat expansions and/or contractions. Expanded tracts are the cause of over 40 neurodegenerative and neuromuscular diseases. In this chapter, we focus on the (CNG)n repeat sequences that, when expanded, lead to Huntington's disease (HD), myotonic dystrophy type 1 (DM1), and a number of other neurodegenerative diseases. We describe a series of in vivo assays, using the model system Saccharomyces cerevisiae, to determine and characterize the dynamic behavior of TNR tracts that are in the early stages of expansion, i.e., the so called threshold range. Through a series of time courses and PCR-based assays, dynamic changes in tract length can be observed as a function of time. These assays can ultimately be used to determine how genetic factors influence the process of tract expansion in these early stages. PMID- 29043642 TI - The Detection and Analysis of Chromosome Fragile Sites. AB - A fragile site is a chromosomal locus that is prone to form a gap or constriction visible within a condensed metaphase chromosome, particularly following exposure of cells to DNA replication stress. Based on their frequency, fragile sites are classified as either common (CFSs; present in all individuals) or rare (RFSs; present in only a few individuals). Interest in fragile sites has remained high since their discovery in 1965, because of their association with human disease. CFSs are recognized as drivers of oncogene activation and genome instability in cancer cells, while some RFSs are associated with neurodegenerative diseases. This review summaries our current understanding of the nature and causes of fragile site "expression", including the recently characterized phenomenon of telomere fragility. In particular, we focus on a description of the methodologies and technologies for detection and analysis of chromosome fragile sites. PMID- 29043643 TI - Imaging of DNA Ultrafine Bridges in Budding Yeast. AB - DNA ultrafine bridges (UFBs) are a type of chromatin-free DNA bridges that connect sister chromatids in anaphase and pose a threat to genome stability. However, little is known about the origin of these structures, and how they are sensed and resolved by the cell. In this chapter, we review tools and methods for studying UFBs by fluorescence microscopy including chemical and genetic approaches to induce UFBs in the model organism Saccharomyces cerevisiae. PMID- 29043644 TI - Detection of Ultrafine Anaphase Bridges. AB - Ultrafine anaphase bridges (UFBs) are thin DNA threads linking the separating sister chromatids in the anaphase of mitosis. UFBs are thought to form when topological DNA entanglements between two chromatids are not resolved prior to anaphase onset. In contrast to other markers of defective chromosome segregation, UFBs cannot be detected by direct staining of the DNA, but instead can be detected using immunofluorescence-based approaches. Due to the fact that they are short-lived and fragile in nature, UFBs can be challenging to detect. In this chapter, we describe methods that have been optimized for successful detection of UFBs. We also provide guidelines for the optimization of UFBs detection depending on the antibody and the cell line to be used. PMID- 29043645 TI - A Chromatin Fiber Analysis Pipeline to Model DNA Synthesis and Structures in Fission Yeast. AB - Chromatin fibers, first described by Jackson and Pombo (J Cell Biol 140(6):1285 1295, 1998) are prepared from cells lysed on glass coverslips, and require minimal equipment to produce. Since the DNA is not previously treated with denaturing agents, proteins are left intact and may be used to model other DNA based processes. Such an analysis can be daunting, without a rigorous method for analysis. We describe a pipeline for chromatin fiber use to model DNA replication complexes. Full protocols for chromatin fiber preparation and staining are presented. Further, we have developed an analysis algorithm for One Dimensional Data-Boolean Logic Operations Binning System (ODD-BLOBS). This freely available software defines replication and protein tracts, measures their lengths, and then correlates replicated areas with protein distributions. Our methods and analysis are tested in Schizosaccharomyces pombe (fission yeast) but may be applied to model replication structures across multiple organisms. PMID- 29043646 TI - Long-Term Imaging of DNA Damage and Cell Cycle Progression in Budding Yeast Using Spinning Disk Confocal Microscopy. AB - Live cell imaging can monitor biological processes in time and space by providing quantitative measurements of cell behavior on a single-cell basis and in live conditions. However the illumination required to visualize fluorescently tagged endogenous proteins often perturbs cellular physiology, a problem particularly acute for yeast cells that are small, highly photosensitive and with scarce protein content. Analyzing the activation of the DNA damage response (DDR) in various yeast mutants or growth conditions, as well as its consequences for cell cycle progression and cell viability over extended periods of time therefore requires a special microscopy setup that does not by itself create DNA damage or perturb cell growth. Here, we provide a quick guide, strains and advice for imaging the DDR in S. cerevisiae for extended time (3-12 h) using spinning-disk confocal microscopy in conditions of limited photobleaching and photodamage. DDR is a conserved mechanism that allows the cell to respond to various stresses, especially those altering DNA integrity or topology. Acquiring time-lapse images of the DDR at high temporal and spatial resolution is of great interest, in particular when studying the effects of mutations or drugs which compromise genomic stability and cell cycle progression. PMID- 29043647 TI - The CellClamper: A Convenient Microfluidic Device for Time-Lapse Imaging of Yeast. AB - Time-lapse fluorescence imaging of yeast cells allows the study of multiple fluorescent targets in single cells, but is often hampered by the tedious cultivation using agar pads or glass bottom wells. Here, we describe the fabrication and operation of a microfluidic device for long-term imaging of yeast cells under constant or changing media conditions. The device allows acquisition of high quality images as cells are fixed in a two-dimensional imaging plane. Four yeast strains can be analyzed simultaneously over several days while up to four different media can be flushed through the chip. The microfluidic device does not rely on specialized equipment for its operation. To illustrate the use of the chip in DNA damage research, we show how common readouts for DNA damage or genomic instability behave upon induction with genotoxic chemicals (MMS, HU) or induction of a single double-strand break using induced CRISPR-Cas9 expression. PMID- 29043648 TI - Characterization of Structural and Configurational Properties of DNA by Atomic Force Microscopy. AB - We describe a method to extract quantitative information on DNA structural and configurational properties from high-resolution topographic maps recorded by atomic force microscopy (AFM). DNA molecules are deposited on mica surfaces from an aqueous solution, carefully dehydrated, and imaged in air in Tapping Mode. Upon extraction of the spatial coordinates of the DNA backbones from AFM images, several parameters characterizing DNA structure and configuration can be calculated. Here, we explain how to obtain the distribution of contour lengths, end-to-end distances, and gyration radii. This modular protocol can be also used to characterize other statistical parameters from AFM topographies. PMID- 29043649 TI - Genome-Wide Quantitative Fitness Analysis (QFA) of Yeast Cultures. AB - We provide a detailed protocol for robot-assisted, genome-wide measurement of fitness in the model yeast Saccharomyces cerevisiae using Quantitative Fitness Analysis (QFA). We first describe how we construct thousands of double or triple mutant yeast strains in parallel using Synthetic Genetic Array (SGA) procedures. Strains are inoculated onto solid agar surfaces by liquid spotting followed by repeated photography of agar plates. Growth curves are constructed and the fitness of each strain is estimated. Robot-assisted QFA, can be used to identify genetic interactions and chemical sensitivity/resistance in genome-wide experiments, but QFA can also be used in smaller scale, manual workflows. PMID- 29043650 TI - Rewiring the Budding Yeast Proteome using Synthetic Physical Interactions. AB - Artificially tethering two proteins or protein fragments together is a powerful method to query molecular mechanisms. However, this approach typically relies upon a prior understanding of which two proteins, when fused, are most likely to provide a specific function and is therefore not readily amenable to large-scale screening. Here, we describe the Synthetic Physical Interaction (SPI) method to create proteome-wide forced protein associations in the budding yeast Saccharomyces cerevisiae. This method allows thousands of protein-protein associations to be screened for those that affect either normal growth or sensitivity to drugs or specific conditions. The method is amenable to proteins, protein domains, or any genetically encoded peptide sequence. PMID- 29043651 TI - Reporter-Based Synthetic Genetic Array Analysis: A Functional Genomics Approach for Investigating Transcript or Protein Abundance Using Fluorescent Proteins in Saccharomyces cerevisiae. AB - Fluorescent reporter genes have long been used to quantify various cell features such as transcript and protein abundance. Here, we describe a method, reporter synthetic genetic array (R-SGA) analysis, which allows for the simultaneous quantification of any fluorescent protein readout in thousands of yeast strains using an automated pipeline. R-SGA combines a fluorescent reporter system with standard SGA analysis and can be used to examine any array-based strain collection available to the yeast community. This protocol describes the R-SGA methodology for screening different arrays of yeast mutants including the deletion collection, a collection of temperature-sensitive strains for the assessment of essential yeast genes and a collection of inducible overexpression strains. We also present an alternative pipeline for the analysis of R-SGA output strains using flow cytometry of cells in liquid culture. Data normalization for both pipelines is discussed. PMID- 29043652 TI - Statistical Analysis and Quality Assessment of ChIP-seq Data with DROMPA. AB - Chromatin immunoprecipitation followed by sequencing (ChIP-seq) analysis can detect protein/DNA-binding and histone-modification sites across an entire genome. As there are various factors during sample preparation that affect the obtained results, multilateral quality assessments are essential. Here, we describe a step-by-step protocol using DROMPA, a program for user-friendly ChIP seq pipelining. DROMPA can be used for quality assessment, data normalization, visualization, peak calling, and multiple statistical analyses. PMID- 29043653 TI - Quantitative Analysis of DNA Damage Signaling Responses to Chemical and Genetic Perturbations. AB - Phosphorylation-mediated signaling is essential for maintenance of the eukaryotic genome. The evolutionarily conserved kinases ATR and ATM sense specific DNA structures generated upon DNA damage or replication stress and mediate an extensive signaling network that impinges upon most nuclear processes. ATR/ATM signaling is highly regulated and can function in a context-dependent manner. Thus, the ability to quantitatively monitor most, if not all, signaling events in this network is essential to investigate the mechanisms by which kinases maintain genome integrity. Here we describe a method for the Quantitative Mass Spectrometry Analysis of Phospho-Substrates (QMAPS) to monitor in vivo DNA damage signaling in a systematic, unbiased, and quantitative manner. Using the model organism Saccharomyces cerevisiae, we provide an example for how QMAPS can be applied to define the effect of genotoxins, illustrating the importance of quantitatively monitoring multiple kinase substrates to comprehensively understanding kinase action. QMAPS can be easily extended to other organisms or signaling pathways where kinases can be deleted or inhibited. PMID- 29043654 TI - Evaluation of Selected MicroRNAs Expression in Remission Phase of Multiple Sclerosis and Their Potential Link to Cognition, Depression, and Disability. AB - Accumulating data suggests that miRNAs might play a major role in neuroinflammatory processes. Therefore, our study aimed to first estimate the levels of miR-155, miR-326, and miR-301a in serum of RR-MS patients in the remission phase and then compare the levels of the examined miRNAs at different times after relapse. In this study, 36 RR-MS patients in the remission phase took part. We analyzed two subgroups of RR-MS: one, 1 to 2 months after completing steroid treatment during relapse (post-acute; n = 13) and the other, over 2 years without any relapse (stable; n = 23). Moreover, we made correlations between these biochemical results and clinical parameters of cognitive impairment, depression, and disability. The obtained results presented downregulation of miR 155 and miR-301a (in 94% and 51% samples, respectively) and overexpression of miR 326 (in 72% samples) in RR-MS patients. Moreover, we observed a positive correlation between the relative expression of miRNAs and BDI (Beck Depression Index) for miR-326 (rho = 0.385459, p = 0.022210; Spearman's rank correlation) and miR-301a (rho = 0.435131, p = 0.008991; Spearman rank correlation). We also observed the differences in expression levels between the post-acute and stable phases of RR-MS. The expression levels of miR-301a and miR155 were higher in the post-acute vs. stable phase of remission (2.385 vs. 0.524 and 0.594 vs. 0.147; respectively). Our study, for the first time, presents miRNA expression differences in two stages of remission: post-acute and stable. PMID- 29043655 TI - Above, on, or shang ()? Language and spatial representations among English Mandarin bilinguals. AB - This study investigated if exposure to spatial language could affect spatial cognition in English-Mandarin bilinguals by focusing on contact/noncontact distinctions, an area that has been a source of contention in the language-and thought literature. Sixty-three participants were first primed with sentences containing spatial terms (e.g., above, on) before performing a spatial decision task. Approximately half of the participants (n = 33) were primed in English; for the remaining participants (n = 30), primes comprising Mandarin spatial terms which mark spatial distinctions differently than in English (e.g., shang in Mandarin signifies both above and on in English)-were employed instead. Our findings revealed that participants' performance was influenced by spatial primes in the English experiment, thereby proffering evidence for thinking-for-speaking effects. However, these findings were not mirrored for the Mandarin experiment, confirming that the contact/noncontact specificity of spatial terms may have been instrumental in engendering the thinking-for-speaking effects observed in English. PMID- 29043656 TI - From eyes to hands: Transfer of learning in the Simon task across motor effectors. AB - Inhibition of irrelevant and conflicting information and responses is crucial for goal-directed behaviour and adaptive functioning. In the Simon task, for example, responses are slowed if their mappings are spatially incongruent with stimuli that must be discriminated on a nonspatial dimension. Previous work has shown that practice with incongruent spatial mappings can reduce or even reverse the Simon effect. We asked whether such practice transfers between the manual and oculomotor systems and if so to what extent this occurs across a range of behavioural tasks. In two experiments, one cohort of participants underwent anti saccade training, during which they repeatedly inhibited the reflexive impulse to look toward a briefly presented target. Additionally, two active-control training groups were included, in which participants either trained on Pro-saccade or Fixation training regimens. In Experiment 1, we probed whether the Simon effect and another inhibitory paradigm, the Stroop task, showed differential effects after training. In Experiment 2, we included a larger battery of inhibitory tasks (Simon, Stroop, flanker and stop-signal) and noninhibitory control measures (multitasking and visual search) to assess the limits of transfer. All three training regimens led to behavioural improvements in the trained-upon task, but only the anti-saccade training group displayed benefits that transferred to the manual response modality. This transfer of training benefit replicated across the two experiments but was restricted to the Simon effect. Evidence for transfer of inhibition training across motor systems offers important insights into the nature of stimulus-response representations and their malleability. PMID- 29043657 TI - Confidence in masked orientation judgments is informed by both evidence and visibility. AB - How do human observers determine their degree of belief that they are correct in a decision about a visual stimulus-that is, their confidence? According to prominent theories of confidence, the quality of stimulation should be positively related to confidence in correct decisions, and negatively to confidence in incorrect decisions. However, in a backward-masked orientation task with a varying stimulus onset asynchrony (SOA), we observed that confidence in incorrect decisions also increased with stimulus quality. Model fitting to our decision and confidence data revealed that the best explanation for the present data was the new weighted evidence-and-visibility model, according to which confidence is determined by evidence about the orientation as well as by the general visibility of the stimulus. Signal detection models, postdecisional accumulation models, two channel models, and decision-time-based models were all unable to explain the pattern of confidence as a function of SOA and decision correctness. We suggest that the metacognitive system combines several cues related to the correctness of a decision about a visual stimulus in order to calculate decision confidence. PMID- 29043658 TI - Erratum to: Isolation and Characterization of Aortic Dendritic Cells and Lymphocytes in Atherosclerosis. PMID- 29043659 TI - Magnitude of Muscle Strength and Mass Adaptations Between High-Load Resistance Training Versus Low-Load Resistance Training Associated with Blood-Flow Restriction: A Systematic Review and Meta-Analysis. AB - BACKGROUND: Low-load resistance training (< 50% of one-repetition maximum [1RM]) associated with blood-flow restriction (BFR-RT) has been thought to promote increases in muscle strength and mass. However, it remains unclear if the magnitude of these adaptations is similar to conventional high-load resistance training (> 65% 1RM; HL-RT). OBJECTIVE: To compare the effects of HL- versus BFR RT on muscle adaptations using a systematic review and meta-analysis procedure. METHODS: Studies were identified via electronic databases based on the following inclusion criteria: (a) pre- and post-training assessment of muscular strength; (b) pre- and post-training assessment of muscle hypertrophy; (c) comparison of HL RT vs. BFR-RT; (d) score >= 4 on PEDro scale; (e) means and standard deviations (or standard errors) are reported from absolute values or allow estimation from graphs. If this last criterion was not met, data were directly requested from the authors. RESULTS: The main results showed higher increases in muscle strength for HL- as compared with BFR-RT, even when considering test specificity, absolute occlusion pressure, cuff width, and occlusion pressure prescription. Regarding the hypertrophic response, results revealed similar effects between HL- and BFR RT, regardless of the absolute occlusion pressure, cuff width, and occlusion pressure prescription. CONCLUSIONS: Based on the present data, maximum muscle strength may be optimized by specific training methods (i.e., HL-RT) while both HL- and BFR-RT seem equally effective in increasing muscle mass. Importantly, BFR RT is a valid and effective approach for increasing muscle strength in a wide spectrum of ages and physical capacity, although it may seem particularly of interest for those individuals with physical limitations to engage in HL-RT. PMID- 29043660 TI - Sera of Peruvians with fever of unknown origins include viral nucleic acids from non-vertebrate hosts. AB - Serum samples collected from 88 Peruvians with unexplained fever were analyzed for viral sequences using metagenomics. Nucleic acids of anelloviruses, pegivirus A (GBV-C), HIV, Dengue virus, and Oropouche virus were detected. We also characterized from two sera the RNA genomes of new species of partitivirus and dicistrovirus belonging to viral families known to infect fungi or arthropod, respectively. Genomic DNA of a putative fungal cellular host could be PCR amplified from the partitivirus-containing serum sample. The detection in human serum of nucleic acids from viral families not known to infect vertebrates may indicate contamination during sample collection and aliquoting or human infection by their presumed cellular host, here a fungus. The role, if any, of the non vertebrate infecting viruses detected in serum in inducing fever is unknown. PMID- 29043662 TI - Stryphnodendron adstringens ("Barbatimao") Leaf Fraction: Chemical Characterization, Antioxidant Activity, and Cytotoxicity Towards Human Breast Cancer Cell Lines. AB - We evaluated the chemical composition, antioxidant activity, and antitumor potential of a fraction that was isolated from Stryphnodendron adstringens (barbatimao) leaf aqueous extract. Fraction is composed by gallic acid, procyanidin dimer B1, and (-)-epicatechin-3-O-gallate and it exhibits antioxidant and cytotoxic activities. Fraction was cytotoxic against two human breast cancer cell lines, ER (+) and MCF-7 and the triple-negative, MDA-MB-435. The sulforhodamine B assay showed that, as compared to normal control cells, the fraction significantly (P < 0.05) decreased cancer cell viability. The morphological alterations noted in the treated cancer cells were cell rounding up, shrinkage, and nuclear condensation reduction of cell diameter and length. Treatment with fraction increased cancer cell expression of Bax, caspase-9, active caspase-3, caspase-8, LC-3, and beclin-1 and decreased Bcl-2, caspase-3, and pro-caspase-8 expression. Altogether, fraction is cytotoxic to both breast cancer cell lines, induces cell death, and its mechanism of action seems to include the induction of apoptosis. Our data support a positive role of the fraction as a chemopreventive agent for antineoplastic drug development. PMID- 29043661 TI - Development of Adenosine Deaminase-Specific IgY Antibodies: Diagnostic and Inhibitory Application. AB - Adenosine deaminase (ADA) is currently used as a diagnostic marker for tuberculous pleuritis. Although ADA has been suggested as a potential marker for several types of cancer, the importance of each of ADA isoforms as well as their levels and enzymatic activities in tumors need to be further investigated. Herein we developed avian immunoglobulin Y highly specific to human ADA via hens immunization with calf adenosine deaminase. The obtained antibodies were used for the development of a sensitive double-egg yolk immunoglobulin (IgY) sandwich ELISA assay with an ADA detection limit of 0.5 ng/ml and a linearity range of up to 10 ng/ml. Specific, affinity-purified IgYs were able to recognize human recombinant ADA and ADA present in human cancer cell lines. In addition, antigen specific IgY antibodies were able to inhibit catalytic activity of calf ADA with an IC50 value of 47.48 nM. We showed that generated IgY antibodies may be useful for ADA detection, thus acting as a diagnostic agent in immunoenzymatic assays. PMID- 29043663 TI - Nephrotoxicity Induced by Cisplatin Intake in Experimental Rats and Therapeutic Approach of Using Mesenchymal Stem Cells and Spironolactone. AB - Chronic kidney disease may lead to subsequent tissue fibrosis. However, many factors can combat injurious stimuli in these tissues aiming to repair, heal, and alleviate any disturbance. Chemokines release, migration of inflammatory cells to the affected site, and activation of fibroblasts for the production of extracellular matrix are commonly observed in this disease. In the last years, many studies have focused on spironolactone (SPL), a mineralocorticoid receptor antagonist, and its pharmacological effects. In the present study, SPL was selected as an anti-inflammatory agent to combat nephrotoxicity and renal fibrosis induced by cisplatin. Mesenchymal stem cells (MSCs) were also selected in addition as a referring agent. Renal fibrosis induced by cisplatin intake significantly increased creatinine, urea, nuclear factor kappa B, insulin-like growth factor-1, fibroblast growth factor-23, and kidney malondialdehyde (MDA) content. Hepatocyte growth factor and renal content of reduced glutathione demonstrated a significant decrease. Histopathological examination of kidney tissues demonstrated marked cellular changes which are correlated with the biochemical results. Oral SPL intake (20 mg/kg/body weight) daily for 4 weeks and MSCs administration (3 * 106 cell/rat) intravenous to the experimental rats resulted in a significant improvement of both the biomarkers studied and the histopathological profile of the renal tissue. Individual administration of spironolactone and MSCs exhibited a marked anti-inflammatory potential and alleviated to a great extent the nephrotoxicity and renal fibrotic pattern induced by cisplatin. PMID- 29043664 TI - Substrate Scope of O-Methyltransferase from Streptomyces peucetius for Biosynthesis of Diverse Natural Products Methoxides. AB - Methylation is a common post-modification reaction that is observed during the biosynthesis of secondary metabolites produced by plants and microorganisms. Based on the sequence information from Streptomyces peucetius ATCC27952, a putative O-methyltransferase (OMT) gene SpOMT7740 was polymerase chain reaction amplified and cloned into E. coli BL21 (DE3) host to test the substrate promiscuity and conduct functional characterization. In vitro and in vivo reaction assays were carried out over various classes of substrates: flavonoids (flavonol, flavones, and isoflavonoid), chalcones, anthraquinones, anthracyclines, and sterol molecules, and the applications in synthesizing diverse classes of O-methoxy natural products were also illustrated. SpOMT7740 catalyzed the O-methylation reaction to form various natural and non-natural O methoxides, includes 7-hydroxy-8-O-methoxy flavone, 3-O-methoxy flavone, three mono-, di-, and tri-O-methoxy genistein, mono-O-methoxy phloretin, mono-O-methoxy luteolin, 3-O-methoxy beta-sitosterol, and O-methoxy anthraquinones (emodin and aloe emodin) and O-methoxy anthracycline (daunorubicin) exhibiting diverse substrate flexibility. Daunorubicin is a native secondary metabolite of S. peucetius. Among the compounds tested, 7,8-dihydroxyflavone was the best substrate for bioconversion to 7-hydroxy-8-O-methoxy flavone, and it was structurally elucidated. This enzyme showed a flexible catalysis over the given ranges of temperature, pH, and divalent cationic conditions for O-methylation. PMID- 29043665 TI - Labeling the ER for Light and Fluorescence Microscopy. AB - The ER is a highly dynamic network of tubules and membrane sheets. Hence imaging this organelle in its native and mobile state is of great importance. Here we describe methods of labeling the native ER using fluorescent proteins and lipid dyes as well as methods for immunolabeling on plant tissue. PMID- 29043666 TI - 3D Electron Microscopy of the ER. AB - The endoplasmic reticulum (ER) forms an extensive network in plant cells. In leaf cells and vacuolated root cells it is mainly restricted to the cortex whereas in the root meristem the cortical and cytoplasmic ER takes up a large volume throughout the entire cell. Only 3D electron microscopy provides sufficient resolution to understand the spatial organization of the ER in the root. However, high contrast staining and optimally ER specific staining is essential. Here we describe a protocol for selective ER staining that allows automated or semiautomated segmentation of the organelle in 3D datasets obtained from serial sections, Array Tomography, Serial Block Face Scanning Electron Microscopy (SBFSEM), or Focused Ion Beam (FIB) SEM. PMID- 29043667 TI - Characterization of Proteins Localized to Plant ER-PM Contact Sites. AB - Like in most eukaryotic cells, the plant endoplasmic reticulum (ER) network is physically linked to the plasma membrane (PM), forming ER-PM contact sites (EPCS). The protein complex required for maintaining the EPCS is composed of ER integral membrane proteins (e.g., VAP27, synaptotagmins), PM-associated proteins (e.g., NET3C), and the cytoskeleton. Here, we describe methods for identifying possible EPCS-associated proteins. These include GFP-tagged protein expression followed by image analysis, and immuno-gold labeling at the ultrastructural level. In combination, these methods can be used to identify the localization of putative EPCS proteins as well as used to postulate their subcellular function. PMID- 29043668 TI - Preparation and Imaging of Specialized ER Using Super-Resolution and TEM Techniques. AB - The plant endoplasmic reticulum (ER) forms several specialized structures. These include the sieve element reticulum (SER) and the desmotubule formed as the ER passes through plasmodesmata. Imaging both of these structures has been inhibited by the resolution limits of light microscopy and their relatively inaccessible locations, combined with the fragile nature of the ER. Here we describe methods to view desmotubules in live cells under 3D-structured illumination microscopy (3D-SIM) and methods to fix and prepare phloem tissue for both 3D-SIM and transmission electron microscopy (TEM) which preserve the fragile structure and allow the detailed imaging of the SER. PMID- 29043669 TI - Quantitation of ER Structure and Function. AB - The plant endoplasmic reticulum forms a network of tubules connected by three-way junctions or sheet-like cisternae. Although the network is three-dimensional, in many plant cells, it is constrained to a thin volume sandwiched between the vacuole and plasma membrane, effectively restricting it to a 2-D planar network. The structure of the network, and the morphology of the tubules and cisternae can be automatically extracted following intensity-independent edge-enhancement and various segmentation techniques to give an initial pixel-based skeleton, which is then converted to a graph representation. Collectively, this approach yields a wealth of quantitative metrics for ER structure and can be used to describe the effects of pharmacological treatments or genetic manipulation. The software is publicly available. PMID- 29043670 TI - Long-Term Imaging of Endoplasmic Reticulum Morphology in Embryos During Seed Germination. AB - Imaging plant embryos at the cellular level over time is technically challenging, since the embryo, once its protective seed coat is removed, must be kept viable and unstressed on a microscope slide for the duration of the experiment. Here we describe a procedure and suitable apparatus for the visualization, over several days, of changes in endoplasmic reticulum (ER) morphology associated with the process of germination in Arabidopsis thaliana seeds. Moreover, we also present a user-friendly image analysis tool which enables subtle perturbations in the ER network to be measured. PMID- 29043671 TI - Dancing with the Stars: Using Image Analysis to Study the Choreography of the Endoplasmic Reticulum and Its Partners and of Movement Within Its Tubules. AB - In this chapter, approaches to the image analysis of the choreography of the plant endoplasmic reticulum (ER) labeled with fluorescent fusion proteins ("stars," if you wish) are presented. The approaches include the analyses of those parts of the ER that are attached through membrane contact sites to moving or nonmoving partners (other "stars"). Image analysis is also used to understand the nature of the tubular polygonal network, the hallmark of this organelle, and how the polygons change over time due to tubule sliding or motion. Furthermore, the remodeling polygons of the ER interact with regions of fundamentally different topology, the ER cisternae, and image analysis can be used to separate the tubules from the cisternae. ER cisternae, like polygons and tubules, can be motile or stationary. To study which parts are attached to nonmoving partners, such as domains of the ER that form membrane contact sites with the plasma membrane/cell wall, an image analysis approach called persistency mapping has been used. To study the domains of the ER that are moving rapidly and streaming through the cell, the image analysis of optic flow has been used. However, optic flow approaches confuse the movement of the ER itself with the movement of proteins within the ER. As an overall measure of ER dynamics, optic flow approaches are of value, but their limitation as to what exactly is "flowing" needs to be specified. Finally, there are important imaging approaches that directly address the movement of fluorescent proteins within the ER lumen or in the membrane of the ER. Of these, fluorescence recovery after photobleaching (FRAP), inverse FRAP (iFRAP), and single particle tracking approaches are described. PMID- 29043672 TI - Preparation of Highly Enriched ER Membranes Using Free-Flow Electrophoresis. AB - Free-flow electrophoresis (FFE) is a technique for separation of proteins, peptides, organelles, and cells. With zone electrophoresis (ZE-FFE), organelles are separated according to surface charge. The ER is the only remaining major cellular compartment in Arabidopsis not to have been isolated using density centrifugation, immune-isolation, or any other method previously applied to purification of plant membranes. By using continuous-flow electrophoresis ER vesicles of similar surface charge, which may have been fragmented during cell lysis, can be focused. A large portion of these vesicles are of sufficiently different surface charge that separation from the majority of Golgi and other contaminants is possible. Here we adapt an earlier ZE-FFE Golgi isolation protocol for the isolation of highly pure ER vesicles and for tracking the migration of peripheral ER vesicles. Isolating ER vesicles of homogenous surface charge allows multi-'omic analyses to be performed on the ER. This facilitates investigations into structure-function relationships within the ER. PMID- 29043673 TI - ER Microsome Preparation in Arabidopsis thaliana. AB - Microsomes are vesicles derived from the endoplasmic reticulum (ER) when cells are broken down in the lab. These microsomes are a valuable tool to study a variety of ER functions such as protein and lipid synthesis in vitro.Here we describe a protocol to isolate ER-derived microsomes Arabidopsis thaliana seedlings and exemplify the use of these purified microsomes in enzyme assays with the auxin precursors tryptophan (Trp) or indole-3-pyruvic acid (IPyA) to quantify auxin synthetic capacity in microsomal and cytosolic fractions. PMID- 29043674 TI - ER Membrane Lipid Composition and Metabolism: Lipidomic Analysis. AB - Plant ER membranes are the major site of biosynthesis of several lipid families (phospholipids, sphingolipids, neutral lipids such as sterols and triacylglycerols). The structural diversity of lipids presents considerable challenges to comprehensive lipid analysis. This chapter will briefly review the various biosynthetic pathways and will detail several aspects of the lipid analysis: lipid extraction, handling, separation, detection, identification, and data presentation. The different tools/approaches used for lipid analysis will also be discussed in relation to the studies to be carried out on lipid metabolism and function. PMID- 29043675 TI - 2in1 Vectors Improve In Planta BiFC and FRET Analyses. AB - Protein-protein interactions (PPIs) play vital roles in all subcellular processes and a number of tools have been developed for their detection and analysis. Each method has its unique set of benefits and drawbacks that need to be considered prior to their application. In fact, researchers are spoilt for choice when it comes to deciding which method to use for the initial detection of a PPI, and which to corroborate the findings. With constant improvements in microscope development, the possibilities of techniques to study PPIs in vivo, and in real time, are continuously enhanced, and expanded. Here, we describe three common approaches, their recent improvements incorporating a 2in1-cloning approach, and their application in plant cell biology: ratiometric Bimolecular Fluorescence Complementation (rBiFC), FRET Acceptor Photobleaching (FRET-AB), and Fluorescent Lifetime Imaging (FRET-FLIM), using Nicotiana benthamiana leaves and Arabidopsis thaliana cell culture protoplasts as transient expression systems. PMID- 29043676 TI - Metabolons on the Plant ER. AB - Metabolons are protein complexes that contain all the enzymes necessary for a metabolic pathway but also scaffolding proteins. Such a structure allows efficient channeling of intermediate metabolites from one active site to the next and is highly advantageous for labile or toxic intermediates. Here we describe two methods currently used to identify metabolons via protein-protein interaction methodology: immunoprecipitations using GFP-Trap(r)_A beads to find novel interaction partners and potential metabolon components and FRET-FLIM to test for and quantify protein-protein interactions in planta. PMID- 29043677 TI - Using Optical Tweezers Combined with Total Internal Reflection Microscopy to Study Interactions Between the ER and Golgi in Plant Cells. AB - Optical tweezers have been used to trap and micromanipulate several biological specimens ranging from DNA, macromolecules, organelles to single celled organisms. Using a combination of the refraction and scattering of laser light from a focused laser beam, refractile objects are physically captured and can be moved within the surrounding media. The technique is routinely used to determine biophysical properties such as the forces exerted by motor proteins. Here, we describe how optical tweezers combined with total internal reflection fluorescence (TIRF) microscopy can be used to assess physical interactions between organelles, more specifically the ER and Golgi bodies in plant cells. PMID- 29043678 TI - Protein Biosynthesis and Maturation in the ER. AB - The endoplasmic reticulum takes care of the folding, assembly, and quality control of thousands of proteins destined to the different compartments of the endomembrane system, or to be secreted in the apoplast. Here we describe how these early events in the life of all these proteins can be followed biochemically by using velocity or isopycnic ultracentrifugation, metabolic labeling with radioactive amino acids, and immunoprecipitation in various conditions. PMID- 29043679 TI - ER Membrane Protein Interactions Using the Split-Ubiquitin System (SUS). AB - Protein-protein interactions (PPIs) play fundamental roles in all cellular processes. Especially membrane proteins facilitate a range of important biological functions in stimuli perception, signaling, and transport. Here we describe a detailed protocol for the yeast mating-based Split-Ubiquitin System (mbSUS) to study PPIs of ER membrane proteins in vivo. In contrast to the prominent Yeast Two-Hybrid, mbSUS enables analysis of full-length membrane proteins in their native cellular context. The system is based on the ubiquitin proteasome pathway leading to the release of an artificial transcription factor followed by activation of reporter genes to visualize PPIs. The mating-based approach is suitable for both small- and large-scale interaction studies. Additionally, we describe protocols to apply the recently established SUS Bridge assay (SUB) which is optimized for the detection of ternary protein interactions. PMID- 29043680 TI - Analysis of Protein Glycosylation in the ER. AB - Protein N-glycosylation is an essential posttranslational modification which is initiated in the endoplasmic reticulum. In plants, the N-glycans play a pivotal role for protein folding and quality control. Through the interaction of glycan processing and binding reactions mediated by ER-resident glycosidases and specific carbohydrate binding proteins, the N-glycans contribute to the adoption of a native protein conformation. Properly folded glycoproteins are released from these processes and allowed to continue their transit to the Golgi where further processing and maturation of N-glycans leads to the formation of more complex structures with different functions. Incompletely folded glycoproteins are removed from the ER by a highly conserved degradation process to prevent the accumulation or secretion of misfolded proteins and maintain ER homeostasis. Here, we describe methods to analyze the N-glycosylation status and the glycan dependent ER-associated degradation process in plants. PMID- 29043681 TI - The Unfolded Protein Response. AB - Under the unfolded protein response (UPR), transcripts encoding the endoplasmic reticulum (ER) chaperones are increased and those encoding proteins synthesized in the ER are decreased. To reproducibly detect such changes of an expression profile, homogeneous growth of plants is desired. In addition, uniform treatment with drugs inducing the UPR is also necessary. Here we describe our methods of plant culture and drug treatment, and procedure to detect gene expression by quantitative RT-PCR. PMID- 29043682 TI - Unfolded Protein Response in Arabidopsis. AB - The unfolded protein response (UPR) is a highly regulated signaling pathway that is largely conserved across eukaryotes. It is essential for cell homeostasis under environmental and physiological conditions that perturb the protein folding in the endoplasmic reticulum (ER). Arabidopsis is one of the outstanding multicellular model systems in which to investigate the UPR. Here, we described a protocol to induce the UPR in plants, specifically arabidopsis, and to estimate their ability to cope with ER stress through the quantification of physiological parameters. PMID- 29043683 TI - Fluorescence Imaging of Autophagy-Mediated ER-to-Vacuole Trafficking in Plants. AB - Macroautophagy (hereafter referred to as autophagy) is a conserved mechanism in eukaryotic cells that delivers unneeded cellular components for degradation in the lytic organelle. In plants, as in other eukaryotes, autophagy begins in the formation of cup-shaped double membranes that engulf cytosolic material. The double membrane closes to form autophagosomes that are then transported to the vacuole for degradation. Autophagy can function as a bulk nonselective process or as a selective process targeting specific proteins, protein aggregates, organelles, or other cellular components for degradation. The endoplasmic reticulum (ER) is linked to autophagy-related processes in multiple ways. The ER was suggested as a possible site for the nucleation of autophagosomes, and as a source for autophagosomal membranes. Furthermore, autophagy has an important role in ER homeostasis, and the ER is a target for a selective type of autophagy, ER phagy, in response to ER stress. However, the detailed molecular mechanisms, especially in plants, are only now starting to be revealed.In this chapter, we describe the use of confocal imaging to follow the delivery of fluorescently tagged ER-associated proteins to the vacuole. We also describe the utilization of fluorescent protein fusions to look at the co-localization of a protein of interest with the autophagosome marker protein ATG8, a core autophagy machinery protein that is essential for selective autophagy processes. PMID- 29043684 TI - Imaging the ER and Endomembrane System in Cereal Endosperm. AB - The cereal endosperm is a complex structure comprising distinct cell types, characterized by specialized organelles for the accumulation of storage proteins. Protein trafficking in these cells is complicated by the presence of several different storage organelles including protein bodies (PBs) derived from the endoplasmic reticulum (ER) and dynamic protein storage vacuoles (PSVs). In addition, trafficking may follow a number of different routes depending on developmental stage, showing that the endomembrane system is capable of massive reorganization. Thus, developmental sequences involve progressive changes of the endomembrane system of endosperm tissue and are characterized by a high structural plasticity and endosomal activity.Given the technical dexterity required to access endosperm tissue and study subcellular structures and (seed storage protein) SSP trafficking in cereal seeds, static images are the state of the art providing a bulk of information concerning the cellular composition of seed tissue. In view of the highly dynamic endomembrane system in cereal endosperm cells, it is reasonable to expect that live cell imaging will help to characterize the spatial and temporal changes of the system. The high resolution achieved with electron microscopy perfectly complements the live cell imaging.We therefore established an imaging platform for TEM as well as for live cell imaging. Here, we describe the preparation of different cereal seed tissues for live cell imaging concomitant with immunolocalization studies and ultrastructure. PMID- 29043685 TI - Abstracts from the 21st Annual Meeting of the European Council for Cardiovascular Research (ECCR), Lake Garda, 20-22 October 2017. PMID- 29043686 TI - [Lies, damn lies and statistics]. AB - With this article, we want to emphasize the limits of statistics with little samples, a condition very common in our speciality, focusing in the most usual mistakes in the interpretation of the p-value. Finally, as conclusion, we simulate a clinical study to look what may be a more apropiate boarding. PMID- 29043687 TI - [Pleural cavity concerns]. AB - INTRODUCTION: Persistent air leak (PAL) is a common problem. We asses our experience in the management of these patients. MATERIAL AND METHODS: Retrospective review of patients with chest tubes after bronchopulmonary pneumothorax (due to lung resections, spontaneous pneumothorax, necrotizing pneumonia) from 2010 to 2015. We studied clinical data, PAL incidence, risk factors and treatment, considering PAL >= 5 days. RESULTS: Thirty-seven cases (28 patients) between 0-16years: 26 lung resections, 11 pneumothorax. We found no differences in the distribution of age, weight, indication or comorbidity, but we noticed a trend to shorter hospital stay in infants. Patients with staple-line reinforcement presented lower PAL incidence than patients with no mechanical suture (43% vs 37%), the difference is even apparent when applying tissue sealants (29% vs 50%) (p > 0.05). We encountered no relationship between the size of the tube (10-24 Fr) or the type of resection, with bigger air leaks the higher suction pressure. We performed 13 pleurodesis in 7 patients (2 lobectomies, 3 segmentectomies and 2 bronchopleural fistulas), with 70% effectiveness. We conducted 7 procedures with autologous blood (1.6 ml/kg), 2 with povidone-iodine (0.5 ml/kg), 2 mechanical thoracoscopic and 2 open ones. We repeated pleurodesis four times, 3 of them after autologous blood infusion: 2 infusions with the same dose (both effective) and the other 2 as thoracotomy in patients with bronchopleural fistulas. After instillation of blood 3 patients presented with fever. After povidone-iodine instillation, the patient suffered from fever and rash. CONCLUSIONS: Intraoperative technical aspects are essential to reduce the risk of PAL. Autologous blood pleurodesis, single or repeated, is a minimal invasive option, very safe and effective to treat the parenchymatous PAL. PMID- 29043688 TI - [Correlation between prenatal ultrasound and postnatal diagnosis of birth defects]. AB - OBJECTIVES: To assess the accuracy of prenatal ultrasound diagnosis and to analyze the protocol applied for congenital defects (CD) in our environment. METHODS: Descriptive study of prenatally diagnosed CD in our area between 2004 2013. Includes: total births, fetal medicine referrals (number of consultations, ultrasound, invasive techniques) anatomical and chromosomal abnormalities, confirmed diagnoses, necropsies performed, false diagnoses, absence of prenatal diagnoses, and number and reasons for abortions (VIEs). RESULTS: Mean annual births were 3,646 +/- 1,299, with a mean prenatal ultrasound of 2,144 +/- 307 and 512 +/- 74 invasive techniques per year. The annual average of prenatal chromosomopathies diagnosed were 26 +/- 8 and 140 +/- 14 anatomical abnormalities, which represents a 36.44% from all of the prenatal ultrasound performed. These include: neurological, cardiac and nephron-urological anatomic anomalies. Pre and post-natal correlation was observed in 95.6% of the DCs detected. Most common causes of abortion were chromosomal abnormalities, heart and neurological diseases. CONCLUSIONS: Due to the variety of CD that cause VIEs, a highly specialized multidisciplinary approach is recommended to ensure optimal information for parents. PMID- 29043689 TI - [Mesenteric edema as a prenatal ultrasound sign of poor prognosis in gastroschisis]. AB - INTRODUCTION/AIM OF THE STUDY: Gastroschisis is a congenital malformation with an easy and early prenatal diagnosis, however, it has a variable post-natal outcome. Our aim was to determine if certain ultrasound markers or early delivery were related with a worse postnatal outcome. PATIENTS AND METHODS: Retrospective study of a cohort of patients with gastroschisis diagnosed between 2005-2014, with emphasis on prenatal ultrasounds, gestational age at delivery and post-natal outcome. Oligohydramnios, peel, mesenteric edema, fixed and dilated bowel with loss of peristalsis and small wall defect were considered ultrasonographic markers associated with poor prognosis. Outcome variables included: length-of stay, complications, nutritional and respiratory factors. Non-parametric statistical analysis were used with p < 0,05 regarded as significant. RESULTS: Clinical charts of 30 patients with gastroschisis were reviewed (17M/13F). Gestational age at diagnosis was 20 (12-31) and at delivery 36 (31-39) weeks (33% of the patients over 36+3 weeks). A 73% of the patients presented at least one ultrasonographic marker factor during follow-up. Univariate analysis showed that mesenteric edema was associated with poor outcome variables: short-bowel syndrome (p= 0,000), PN-dependence (p= 0,007) and intestinal atresia (p= 0,02). The remaining risk factors analysed, including late delivery (> 36+3 weeks) were not associated with length-of-stay, ventilatory support, digestive autonomy, complications or mortality. CONCLUSIONS: Neither the presence of ultrasonographic markers classically associated with unfavorable outcomes, nor early delivery (< 36 weeks) resulted in worse postnatal outcome. Mesenteric edema was the only alarming ultrasound marker and that may suggest the need of closer follow-up. PMID- 29043690 TI - [Prevention of the wound infection: little changes, huge results]. AB - INTRODUCTION: Neonatal surgical wound infection occurs in almost 50% of neonatal procedures. It increases the rates of morbimortality in neonatal units. There is no guidelines about prevention of wound infection in neonatal surgery. We present our results after changing our behaviour in neonatal surgery. MATERIALS AND METHODS: Comparative study between 2 groups. In order to decrease wound infection at the end of the procedure gloves, covertures and surgical instruments were changed and saline and antiseptic solutions were used during laparotomy closing. Group P included procedures with these recommendations and Group NP without them. Age, weight, surgery, infection, length of stay, and mortality were analized between groups through a logistic regression model. RESULTS: Group P included 55 procedures in 32 patients, median weight 1,300 g (1,000-2,100), 19 median days of life (6-40), 5 postoperative wound problems (9%). Group NP included 26 procedures in 14 neonates, median weight 1,700 g (700-2,500), 20 median days of life (3-33), 14 wound problems (53.8%). We decrease the wound problems in our patients in 44.8% (p < 0.0001). Additionally, the protection provided by our recommendations was maintained after adjustment by weight, age and type of pathology (0.07) p= 0.000. CONCLUSIONS: Simple changes in during the procedures in neonatal surgery can reduce the appearance of wound infection and morbidity. PMID- 29043691 TI - [Analysis of hypertrophic pyloric stenosis: size does matter]. AB - OBJECTIVES: To analyze the correlation between pyloric size and evolution of patients surgically treated for infantile hypertrophic pyloric stenosis (IHPS). PATIENTS AND METHODS: We realized a retrospective study of 109 patients undergoing IHPS in 5 years. We analyzed by chi2 test if a correlation between evolution time, age and postoperative vomiting and gastroesophageal reflux disease (GERD), and pyloric muscle thickness (group A > 4.5 mm and group B <= 4.5 mm) and pyloric channel length (group A >= 20 mm and group B < 20 mm) exists. RESULTS: There is a statistically significant correlation between longer evolution history (>48 h) and pyloric length >= 20 mm and between age (> 30 days) and muscle thickness > 4.5 mm (p= 0.022 and p= 0.009, respectively). Also, 38.5% of 109 patients had postoperative emesis 2 days after surgery and 13.8% had GERD for a median time of 8.27 months (1-12 months), showing that there is a statistically significant correlation (p= 0.007) between pyloric channel length >= 20 mm and postoperative emesis. It was not observed correlation between pyloric thickness and length and GERD. CONCLUSIONS: It has been observed that there is correlation between pyloric length >= 20 mm and postoperative emesis. However, it has not been observed regarding the pyloric muscle thickness. A longer preoperative evolution and age > 30 days are correlated to channel length >= 20 mm and muscle thickness > 4.5 mm, respectively. PMID- 29043692 TI - [Appendicitis versus nonspecific acute abdominal pain: diagnostic accuracy of ultrasound]. AB - PURPOUSE: The aim of this study is to assess the diagnostic accuracy of ultrasound to differentiate appendicitis from nonspecific acute abdominal pain, that is the most common process requiring differential diagnosis in clinical practice. MATERIAL AND METHODS: Patients admitted for suspicion of appendicitis were prospectively evaluated in our hospital during two years (2013-2014). Cases of nonspecific acute abdominal pain and appendicitis assessed by ultrasound were enrolled in the study. The different variables collected were statistically analyzed by descriptive, univariate and diagnostic accuracy studies. RESULTS: A total of 275 patients were studied, 143 cases of nonspecific acute abdominal pain and 132 cases of appendicitis. Ultrasound sensitivity and specificity to differentiate appendicitis were 94.7% and 87.4% respectively, with a 12.6% rate of false positives and a 5.3% rate of false negatives. The rate of false negatives in perforated group was 17.4% and analysis according to Pediatric Appendicitis Score risk groups showed a 12.2% rate of false positives in low-risk group and a 6.3% rate of false negatives in high-risk group. CONCLUSIONS: The use of ultrasound in low clinical probability cases of appendicitis could rise unnecessary surgery rate, due to the significant number of false positives in this group of patients. In high probability clinical cases, ultrasound does not contribute too much to diagnosis and it could be a confusion factor by the significant number of false negative associated to perforated appendicitis. PMID- 29043693 TI - [Post-appendectomy intra-abdominal abscesses: six years' experience in a Pediatric Surgery Department]. AB - OBJECTIVES: Post-appendectomy intra-abdominal abscesses are estimated to complicate up to 4.2% of acute non-perforated appendicitis and between 6.7% and 28% acute perforated appendicitis. This study was performed with the aim to review and characterize post-appendectomy intra-abdominal abscesses in our Pediatric Surgery department; to calculate their incidence and to evaluate the efficacy of the treatment modality. MATERIAL AND METHODS: A retrospective analysis of all patients, under 18 years and with the diagnosis of intra abdominal abscess post-appendectomy, between January 2010 and December 2015 was performed, taking in account initial surgical approach, type of acute appendicitis, length of hospital stay and the treatment applied. Data were collected by reviewing clinical files. RESULTS: In a total of 1,340 appendectomies performed, there were 24 intra-abdominal abscesses identified (1.79%). Eight were feminine and sixteen masculine, and mean age was 11.9 years. In 52% of cases the diagnosis was made in the initial admission. Twelve have been submitted to laparoscopic appendectomy and the other 12 to open appendectomy. Of the 24 patients, only 4 needed a surgical re-intervention, which leaves medical treatment an 83.3% success rate. CONCLUSIONS: TThe incidence of intra-abdominal abscesses post-appendectomy, in the studied population, is what was expected and inferior to what's described in the literature. In our sample, conservative management for intra-abdominal abscesses post-appendectomy was successful in most of the cases, only 4 needing further surgical intervention. PMID- 29043694 TI - [Long-term results of hypospadias surgery. Urinary and sexual function, and psychological impact]. AB - OBJECTIVES: To determine the current status of the patients operated on for hypospadias in our region, in order to adapt the surgical technique to their real needs. MATERIAL AND METHODS: A descriptive and observational study. Interviews were conducted with hypospadias surgery patients in our hospital between 1976 and 1996, focusing on their urinary and sexual function and psychological impact. We performed a descriptive statistical analysis and comparisons between types of hypospadias (SPSSv19). RESULTS: 566 patients were operated on for hypospadias during the study period, interviewing 100 aged between 18 and 40 years. The 73% were distal and 27% proximal. Of all patients, 30% do not have an orthotopic meatus, 10% have fistula, 18% have some degree of stenosis and 52% have penile curvature. The 13% feel to have had disadvantages in their life. They consider they have a different penis in: size (19%), glans shape (17%), curvature (14%), scars (10%) and lowest hole (7%). Sexual satisfaction was valued at 8.9 on a scale of 1 to 10, with no differences between the types of hypospadias. Proximal hypospadias patients have more ejaculation problems: 42% versus 11% in distal hypospadias. The 68% of the proximal ones would like to improve compared to 20% of the distal in: appearance (17%), size (11%) and way to urinate (11%). CONCLUSIONS: Anatomic abnormalities are maintained but the aspects that values the adult patient differ from those persecuted by practiced surgeries. A significant percentage of patients would try to get another surgery. Keeping the size of the penis and natural appearance of the glans should be a priority in hypospadias surgery. PMID- 29043695 TI - [Vascular anomalies in the neonatal period]. AB - OBJECTIVE: Vascular anomalies in the neonatal period are a diagnostic challenge for the lack of evident signs, symptoms and follow-up, and the convenience of restricting aggressive diagnostic tests. The aim of this work is to review the characteristics of neonatal cases presented to our Vascular Anomalies Unit in the last 5 years. MATERIALS AND METHODS: All cases of suspected vascular anomaly presented to our unit before 1 month of age between 2010 and 2015 were reviewed, diagnostic tests and treatments carried out with chronology were analyzed. Presumptive diagnosis and final diagnosis (when available) were compared. RESULTS: Fifteen vascular tumors were found, 2 with visceral involvement: 6 infantile hemangiomas (IH), 3 NICH, 4 RICH, 1 tufted hemangioma, 1 unspecified liver vascular tumor, 3 venous malformations (2 equivocal MRI and a hyperkeratotic venous malformation), 4 lymphatic malformations, 3 of them macrocystic, and 2 vascular lesions that were diagnosed of fibrosarcoma and sclerema neonatorum and they were not vascular anomalies. Only 3 patients with macrocystic lymphatic malformations had prenatal diagnosis. CONCLUSION: Accurate diagnosis of vascular anomalies during the first month of life is difficult, even with MRI. Only in a few cases early treatment is needed, so it is worth taking time to follow-up. Different types of treatment (observation, propranolol, biopsy, laser, embolization, and resection) will depend on the condition to be treated. A continuous observation can avoid unnecessary procedures and risks. PMID- 29043696 TI - [Complete and inverted esophagastric duplicity]. AB - CASE REPORT: A 4-month old girl affected by gastric duplication discovered as a palpable abdominal mass displacing the spleen and left kidney. During laparotomy, a yellowish secretion is aspirated and the gastric duplication is excised together with the common muscular Wall of the greater curvature of the stomach. Also excised, a tubular structure starting from the inferior pole of the malformation, and communicating with it, passing superior to the head of the pancreas and the second portion of the duodenum, followed by a posterior course before inserting into the right cruz of the diaphragm. The histology of the tubular formation was compatible with esophagus. CONCLUSION: This type of duplication has not been reported in the literature and reinforces the theory that these malformations could be secondary to genetic transcription errors, in the differentiation of the endoderm of the primitive digestive tract and the notochord. PMID- 29043697 TI - Revisiting The Relationship between The Ejaculatory Abstinence Period and Semen Characteristics. AB - Variation in the ejaculatory abstinence period suggested by different guidance bodies have resulted in a growing concern among researchers and clinicians over what the precise period of ejaculatory abstinence ought to be for an optimal semen sample. Several studies have thus been undertaken to examine the association between the length of sexual abstinence and semen characteristics. Not all studies, however, have arrived at the same conclusions. This study aims to review all existing literature published during the past few decades pertaining to the influence of ejaculatory abstinence on semen quality. For the purpose of this systematic review, all data related to sexual abstinence duration and seminal parameters were re-analysed to homogenize the current data. Thorough PubMed, MEDLINE and Google Scholar, a literature search was conducted using the keywords "sexual abstinence", "ejaculatory abstinence", "semen", "spermatozoa", "semen analysis", "sperm parameters", "motility", "reactive oxygen species (ROS)" and "DNA fragmentation". After carefully reviewing all the literature, 30 relevant papers, both written in English and published between January 1979 and December 2016, were included in this review. The weight of the evidence suggests that the decline in semen volume and sperm concentration with shorter abstinence periods is accompanied by a substantial improvement in sperm motility characteristics, especially progressive motility and velocity. Nevertheless, available data are insufficient to support definitive conclusions regarding the influence of the ejaculatory abstinence period on advanced semen parameters (ROS, DNA fragmentation and seminal plasma antioxidant capacity) and pregnancy rates. In conclusion, taking all data into account, shortening of the abstinence period may be beneficial to sperm quality. Furthermore, we recommend that the current guidelines regarding the prescribed abstinence period should be revisited. PMID- 29043698 TI - Gene Polymorphism of Matrix Metalloproteinase 9 in Asthenozoospermic Male Subjects. AB - Background: Matrix metalloproteinase (MMPs) play important roles in the structural and functional properties of reproductive organs. The aim of this study is to determine the prevalence of C-1562T MMP-9 (rs3918242) gene polymorphism in fertile and infertile men. In addition, we aim to determine the association between C-1562T MMP-9 and G-1575A MMP-2 gene polymorphisms. MATERIALS AND METHODS: A total of 400 subjects, including 200 fertile and 200 infertile men, were recruited for this casecontrol study. The allele frequencies and genotype distributions of single nucleotide polymorphism in the promoter regions of MMP-9 (C-1562T) were determined using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. The chi-square (chi2) test was used to assess the distribution of genotype frequencies. RESULTS: There were no significant differences found in the genotype distributions or allele frequencies between fertile and infertile men for the C-1562T MMP-9 gene polymorphism. The percent of immotile sperm in infertile men with the CC and CT genotypes of C 1562T MMP-9 gene polymorphism significantly differed compared with that of subjects with the TT genotype. The frequency of CC/GA-combined genotypes of C 1562T MMP-9 and G-1575A MMP-2 gene polymorphisms significantly differed in fertile and infertile men (P=0.031). CONCLUSION: Our results suggest that genetic polymorphisms in MMP may impact male fertility. PMID- 29043699 TI - Multiplex-Polymerase Chain Reaction for Detecting Microdeletions in The Azoospermia Factor Region of Y Chromosome in Iranian Couples with Non-Obstructive Infertility and Recurrent Pregnancy Loss. AB - Background: Approximately 15% of couples are infertile with the male factor explaining approximately 50% of the cases. One of the main genetic factors playing a role in male infertility is Y chromosomal microdeletions within the proximal long arm of the Y chromosome (Yq11), named the azoospermia factor (AZF) region. Recent studies have shown there is a potential connection between deletions of the AZF region and recurrent pregnancy loss (RPL). The aim of this study is to examine this association by characterizing AZF microdeletions in two infertile groups: in men with non-obstructive infertility and in men with wives displaying RPL. MATERIALS AND METHODS: In this is a case-control study, genomic DNA was extracted from 80 male samples including 40 non-obstructive infertile men, 20 males from couples with RPL and 20 fertile males as controls. Multiplex polymerase chain reaction was used to amplify 19 sequence tagged sites (STS) to detect AZF microdeletions. Differences between the case and control groups were evaluated by two-tailed unpaired t test. P<0.05 were considered statistically significant. RESULTS: Only one subject was detected to have Y chromosome microdeletions in SY254, SY157 and SY255 among the 40 men with non-obstructive infertility. No microdeletion was detected in the males with wives displaying RPL and in 20 control males. Y chromosome microdeletion was neither significantly associated with non-obstructive infertility (P=0.48) nor with recurrent pregnancy loss. CONCLUSION: Performing Testing for Y chromosome microdeletions in men with non-obstructive infertility and couples with RPL remains inconclusive in this study. PMID- 29043700 TI - Body Mass Index Effects Kruger's Criteria in Infertile Men. AB - Background: The aim of this study is to evaluate the relationship between sperm parameters and body mass index (BMI) in the male spouses with infertility complaints, who had reffered to our clinic. MATERIALS AND METHODS: The male spouses from 159 couples reffering to our clinic because of infertility, during a six-month period, were included in the study. In this prospective case control study, the included men were categorized as non-obese (BMIP<25 kg/m2), overweight (BMI 25-29 kg/m2) and obese (BMI >=30 kg/m2) according to their BMIs. The assessed sperm parameters consisted of; sperm concentration, Kruger morphology, progressive motility level, and volume pH levels. The statistical significant level was set as less than 0.05. RESULTS: The assessed group consisted of 159 patients applying to our clinic with infertility symptoms. Fifty-three non-obese, 53 overweight and 53 obese men were eligible for the study. There was statistically significant differences in sperm volume (P<0.001), progressive motility (P<0.001), postwash sperm count (P<0.001) and Kruger (P<0.001) morphology among the patient groups grouping according to the BMI levels. CONCLUSION: In this study, increased BMI was associated with decreased semen quality, affecting volume, concentration, and motility. further studies with a wider range of prospective cases need to be conducted in order to investigate the effects on male fertility in more detail. PMID- 29043701 TI - Royal Jelly Promotes Ovarian Follicles Growth and Increases Steroid Hormones in Immature Rats. AB - Background: Royal jelly (RJ) is a complementary diet widely prescribed by traditional medicine specialists for treatment of infertility. The aim of present study was to evaluate the effects of RJ on a set of reproductive parameters in immature female rats. MATERIALS AND METHODS: In this experimental study, thirty two immature female rats (30-35 g) were divided into four groups (n=8/group): three experimental groups and one control. The experimental groups received 100, 200 and 400 mg/kg/body weight doses of RJ daily for 14 days, and the control group received 0.5 ml distilled water interaperitonealy (i.p). The treated rats were sacrificed and their ovaries were dissected for histological examination. The serum levels of ovarian hormones, nitric oxide (NO) and ferric reducing antioxidant power (FRAP) were evaluated, and the ratios of the ovarian and uterine weight to body weight were calculated. One-way ANOVA was used for data analysis. RESULTS: The body weights were significantly different (P=0.002) among the rat groups, with an increase in all RJ treated animals. Uterine and ovarian weights and the serum levels of progesterone (P=0.013) and estradiol (P=0.004) were significantly increased in experimental groups compared to the control group. In addition, a significant increase in the number of mature follicles and corpora lutea (P=0.007) was seen in RJ recipients compared to the controls. A significant increase in the serum levels of FRAP (P=0.009) and a significant decrease in NO level (P=0.013) were also observed. CONCLUSION: RJ promotes folliculogensis and increases ovarian hormones. This product can be considered as a natural growth stimulator for immature female animals. PMID- 29043702 TI - N-Acetylcysteine Compared to Metformin, Improves The Expression Profile of Growth Differentiation Factor-9 and Receptor Tyrosine Kinase c-Kit in The Oocytes of Patients with Polycystic Ovarian Syndrome. AB - Background: Paracrine disruption of growth factors in women with polycystic ovarian syndrome (PCOS) results in production of low quality oocyte, especially following ovulation induction. The aim of this study was to investigate the effects of metformin (MET), N-acetylcysteine (NAC) and their combination on the hormonal levels and expression profile of GDF-9, BMP-15 and c-kit, as hallmarks of oocyte quality, in PCOS patients. MATERIALS AND METHODS: This prospective randomized, double-blind, placebo controlled trial aims to study the effects of MET, NAC and their combination (MET+NAC) on expression of GDF-9, BMP-15 and c-kit mRNA in oocytes [10 at the germinal vesicle (GV) stage, 10 at the MI stage, and 10 at the MII stage from per group] derived following ovulation induction in PCOS. Treatment was carried out for six weeks, starting on the third day of previous cycle until oocyte aspiration. The expression of GDF9, BMP15 and c-kit were determined by quantitative real time polymerase chain reaction (RT-qPCR) and western blot analysis. Data were analyzed with one-way ANOVA. RESULTS: The follicular fluid (FF) level of c-kit protein significantly decreased in the NAC group compared to the other groups. Significant correlations were observed between the FF soluble c-kit protein with FF volume, androstenedione and estradiol. The GDF-9 expression in unfertilized mature oocytes were significantly higher in the NAC group compared to the other groups (P<0.001). Similar difference was not observed between the MET, NAC+MET and control groups. The c kit expression in unfertilized mature oocytes were significantly lower in the NAC group compared to the other groups (P<0.001). Similar difference was not observed between the MET, NAC+MET and control groups (Registration number: IRCT201204159476N1). CONCLUSION: We concluded that NAC can improve the quality of oocytes in PCOS. PMID- 29043703 TI - The Effects of Dienogest on Macrophage and Natural Killer Cells in Adenomyosis: A Randomized Controlled Study. AB - Background: Progestin has been used for symptomatic treatment of adenomyosis, although its effect on the immune system has not been studied. The aim of this study was to investigate the changes of macrophage and natural killer (NK) cell infiltration in tissues obtained from women with adenomyosis who did or did not receive oral progestin dienogest. MATERIALS AND METHODS: In this randomized controlled clinical trial study, 24 patients with adenomyosis who required hysterectomy were enrolled. Twelve patients received dienogest 28-35 days before surgery, and the other 12 patients were not treated with any hormones. The endometrial and myometrial tissue samples were immediately collected after hysterectomy, and immunohistochemistry for a macrophage marker (CD68) and a NK cells marker (CD57) was performed. RESULTS: The number of CD57 cells was significantly increased in endometrial glands of the treated group compared to the untreated group (P=0.005) but not in stroma in the endometrium of the treated patients (P=0.416). The difference in the number of CD68 cells was not statistically significant between treated and untreated groups in the endometrial glands (P=0.055) or stromal tissues (P=0.506). CONCLUSION: Administration of oral progestin dienogest to patients with adenomyosis increased the number of uterine infiltrating NK cells in glandular structure of eutopic endometrium. The differential effects of progestin on NK cells depended on the site of immune cell infiltration. The effects of oral progestin on uterine NK cells in adenomyosis have the potentials to be beneficial to pregnancies occurring following discontinuation of treatment in terms of embryo implantation and fetal protection (Registration number: TCTR20150921001). PMID- 29043704 TI - Accuracy of Two-Dimensional Transvaginal Sonography and Office Hysteroscopy for Detection of Uterine Abnormalities in Patients with Repeated Implantation Failures or Recurrent Pregnancy Loss. AB - Background: We sought to compare diagnostic values of two-dimensional transvaginal sonography (2D TVS) and office hysteroscopy (OH) for evaluation of endometrial pathologies in cases with repeated implantation failure (RIF) or recurrent pregnancy loss (RPL). MATERIALS AND METHODS: This prospective study was performed at Royan Institute from December 2013 to January 2015. TVS was performed before hysteroscopy as part of the routine diagnostic work-up in 789 patients with RIF or RPL. Uterine biopsy was performed in cases with abnormal diagnosis in TVS and/or hysteroscopy. We compared the diagnostic accuracy values of TVS in detection of uterine abnormalities with OH by receiver operating characteristic (ROC) curve analysis. RESULTS: TVS examination detected 545 (69%) normal cases and 244 (31%) pathologic cases, which included 84 (10.6%) endometrial polyps, 15 (1.6%) uterine fibroids, 10 (1.3%) Asherman's syndrome, 9 (1.1%) endometrial hypertrophy, and 126 (15.9%) septate and arcuate uterus. TVS and OH concurred in 163 pathologic cases, although TVS did not detect some pathology cases (n=120). OH had 94% sensitivity, 95% specificity, 62% positive predictive value (PPV), and 99% negative predictive value (NPV) for detection of endometrial polyps. In the diagnosis of myoma, sensitivity, specificity, PPV, and NPV were 100%. TVS had a sensitivity of 50% and specificity of 98% for the diagnosis of myoma. For polyps, TVS had a sensitivity of 54% and specificity of 80%. Area under the ROC curve (AUROC) was 70.69% for the accuracy of TVS compared to OH. CONCLUSION: TVS had high specificity and low sensitivity for detection of uterine pathologies in patients with RIF or RPL compared with OH. OH should be considered as a workup method prior to treatment in patients with normal TVS findings. PMID- 29043705 TI - Quality of Life and Its Influencing Factors of Couples Referred to An Infertility Center in Shiraz, Iran. AB - Background: Infertility adversely affects quality of life (QoL). The present study aims to evaluate QoL and its associated factors among infertile couples. MATERIALS AND METHODS: In this cross-sectional study, the Fertility QoL (FertiQoL) instrument was used to measure QoL among 501 volunteer couples who attended the Infertility Clinic at the Mother and Child Hospital, Shiraz, Iran. We used an additional questionnaire to assess participants' demographic and clinical characteristics. The relationship between the scores of QoL to the sociodemographic and treatment data was analysed. RESULTS: The subjects with lower income levels had lower relational, mind/body, emotional, and total core scores. Female participants without academic education had lower scores in the emotional subscale, while the male participants showed lower scores in emotional, mind/body, relational, social, and total QoL domains. Subjects who had undergone any type of treatment, including pharmacological treatment, intrauterine insemination (IUI), intra-cytoplasmic sperm injection (ICSI), and in vitro fertilization (IVF) showed significantly lower scores in the environmental domain. Participants with lower infertility duration obtained significantly greater QoL scores. Finally, tolerability, emotional, and environmental domains were significantly more desirable when the infertility problem was related to a male factor. CONCLUSION: Infertile couples with shorter duration of infertility and male etiology have higher QoL. Lower academic education, lower income levels, or prior unsuccessful treatments are associated with lower QoL. PMID- 29043706 TI - The Effects of Exercise on Expression of CYP19 and StAR mRNA in Steroid-Induced Polycystic Ovaries of Female Rats. AB - Background: Polycystic ovarian syndrome (PCOS) is the most frequent female endocrine disorder that affects 5-10% of women. PCOS is characterized by hyperandrogenism, oligo-/anovulation, and polycystic ovaries. The aim of the present research is to evaluate the expression of steroidogenic acute regulatory protein (StAR) and aromatase (CYP19) mRNA in the ovaries of an estradiol valerate (EV)-induced PCOS rat model, and the effect of treadmill and running wheel (voluntary) exercise on these parameters. MATERIALS AND METHODS: In this experimental study, we divided adult female Wistar rats that weighed approximately 220 +/- 20 g initially into control (n=10) and PCOS (n=30). Subsequently, PCOS group were divided to PCOS, PCOS with treadmill exercise (P ExT), and PCOS with running wheel exercise (P-ExR) groups (n=10 per group). The expressions of StAR and CYP19 mRNA in the ovaries were determined by quantitative real-time reverse transcriptase polymerase chain reaction (qRT-PCR). Data were analyzed by one-way ANOVA using SPSS software, version 16. The data were assessed at alpha=0.05. RESULTS: There was significantly lower mRNA expression of CYP19 in the EV-induced PCOS, running wheel and treadmill exercise rats compared to the control group (P<0.001). Treadmill exercise (P=0.972) and running wheel exercise (P=0.839) had no significant effects on CYP19 mRNA expression compared to the PCOS group. mRNA expression of StAR in the ovaries of the PCOS group indicated an increasing trend compared to the control group, however this was not statistically significant (P=0.810). We observed that 8 weeks of running wheel and treadmill exercises could not statistically decrease StAR mRNA expression compared to the PCOS group (P=0.632). CONCLUSION: EV-induced PCOS in rats decreased CYP19 mRNA expression, but had no effect on StAR mRNA expression. We demonstrated that running wheel and moderate treadmill exercise could not modify CYP19 and StAR mRNA expressions. PMID- 29043707 TI - Congenital Malformations in Singleton Infants Conceived by Assisted Reproductive Technologies and Singleton Infants by Natural Conception in Tehran, Iran. AB - Background: Multiple pregnancies occur more frequently in assisted reproductive technology (ART) compared to normal conception (NC). It is known that the risk of congenital malformations in a multiple pregnancy are higher than single pregnancy. The aim of this study is to compare congenital malformations in singleton infants conceived by ART to singleton infants conceived naturally. MATERIALS AND METHODS: In this historical cohort study, we performed a historical cohort study of major congenital malformations (MCM) in 820 singleton births from January 2012 to December 2014. The data for this analysis were derived from Tehran's ART linked data file. The risk of congenital malformations was compared in 164 ART infants and 656 NC infants. We performed multiple logistic regression analyses for the independent association of ART on each outcome. RESULTS: We found 40 infants with MCM 29 (4.4%) NC infants and 14 (8.3%) ART infants. In comparison with NC infants, ART infants had a significant 2-fold increased risk of MCM (P=0.046). After adjusting individually for maternal age, infant gender, prior stillbirth, mother's history of spontaneous abortion, and type of delivery, we did not find any difference in risk. In this study the majority (95.1%) of all infants were normal but 4.9% of infants had at least one MCM. We found a difference in risk of MCMs between in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). We excluded the possible role of genotype and other unknown factors in causing more malformations in ART infants. CONCLUSION: This study reported a higher risk of MCMs in ART singleton infants than in NC singleton infants. Congenital heart disease, developmental dysplasia of the hip (DDH), and urogenital malformations were the most reported major malformations in singleton ART infants according to organ and system classification. PMID- 29043708 TI - Comparison of In Vitro Fertilization/Intracytoplasmic Sperm Injection Cycle Outcome in Patients with and without Polycystic Ovary Syndrome: A Modified Poisson Regression Model. AB - Background: Polycystic ovary syndrome (PCOS) is a frequent condition in reproductive age women with a prevalence rate of 5-10%. This study intends to determine the relationship between PCOS and the outcome of assisted reproductive treatment (ART) in Tehran, Iran. MATERIALS AND METHODS: In this historical cohort study, we included 996 infertile women who referred to Royan Institute (Tehran, Iran) between January 2012 and December 2013. PCOS, as the main variable, and other potential confounder variables were gathered. Modified Poisson Regression was used for data analysis. Stata software, version 13 was used for all statistical analyses. RESULTS: Unadjusted analysis showed a significantly lower risk for failure in PCOS cases compared to cases without PCOS [risk ratio (RR): 0.79, 95% confidence intervals (CI): 0.66-0.95, P=0.014]. After adjusting for the confounder variables, there was no difference between risk of non-pregnancy in women with and without PCOS (RR: 0.87, 95% CI: 0.72-1.05, P=0.15). Significant predictors of the ART outcome included the treatment protocol type, numbers of embryos transferred (grades A and AB), numbers of injected ampules, and age. CONCLUSION: The results obtained from this model showed no difference between patients with and without PCOS according to the risk for non-pregnancy. Therefore, other factors might affect conception in PCOS patients. PMID- 29043709 TI - Estimation of Day-Specific Probabilities of Conception during Natural Cycle in Women from Babylon. AB - Background: Identifying predictors of the probabilities of conception related to the timing and frequency of intercourse in the menstrual cycle is essential for couples attempting pregnancy, users of natural family planning methods, and clinicians diagnosing for possible causes of infertility. The aim of this study is to estimate the days in which the likelihood of conception happened by using first trimester ultrasound fetal biometry in natural cycles and spontaneous pregnancy, and to explore some factors that may affect them. MATERIALS AND METHODS: This study is retrospective cohort study, with random sampling. It involved 60 pregnant ladies at first trimester; the date of conception was estimated using: i. Crown-rump length biometry (routine ultrasound examinations were performed at a median of 70 days following Last menstrual period or equivalently 10 weeks), ii. Date of last menstrual cycle. Only women with previous infertility and now conceiving naturally with a certain date of Last menstrual period were selected. RESULTS: The distribution of conception showed a sharp rise from day 8 onwards, reaching its maximum at day 13 and decreasing to zero by day 30 of Last menstrual period. The older and obese women had conceive earlier than younger women but there was insignificants difference between the two groups (P>0.05). According to the type of infertility, the women with secondary infertility had conceived earlier than those with primary infertility. There was a significant difference between the two groups (P<0.05). CONCLUSION: Day specific of conception may be affected by factors such as age, BMI, and type of infertility. This may be confirmed by larger sample size in metacentric study. PMID- 29043710 TI - Pregnancy in Non-Communicating Rudimentary Horn of A Unicornuate Uterus. AB - Diagnosis and management of pre-rupture stage of the pregnant horn are difficult and usually missed on a routine ultrasound scan. Also most cases are detected after rupture of pregnant horn. We presented a 28-year-oldG2 L1 woman with diagnosis of rudimentary horn pregnancy (RHP) at 14 weeks of gestation. We diagnosed her with a normal intrauterine pregnancy, whereas a pregnancy in a right-sided non-communicating rudimentary horn with massive hemoperitoneum was later discovered on laparotomy. RHP has a high risk of death for mother, so there must be a strong clinical suspicion for the diagnosis of RHP. Although there is a major advancement in field of diagnostic ultrasound and other imaging modalities, prenatal diagnosis has remained elusive and a laparotomy surgery is considered as a definitive diagnosis. PMID- 29043711 TI - The Many Guises of Endometriosis: Giant Abdominal Wall Endometriosis Masquerading as An Incisional Hernia. AB - Endometriosis is defined by the presence of ectopic endometrial tissue outside the uterine cavity. Although it is a leading cause of chronic pelvic pain and infertility, its clinical presentation can vary, resulting in diagnostic and therapeutic challenges. Extrapelvic endometriosis is particularly difficult to diagnose owing to its ability to mimic other conditions. Endometrial tissue in a surgical scar is uncommon and often misdiagnosed as a granuloma, abscess, or malignancy. Cyclical hemorrhagic ascites due to peritoneal endometriosis is exceptionally rare. We report the case of a pre-menopausal, nulliparous 44-year old woman who presented with ascites and a large abdominal mass that arose from the site of a lower midline laparotomy scar. Five years previously, she had undergone open myomectomy for uterine fibroids. Soon after her initial operation she developed abdominal ascites, which necessitated percutaneous drainage on multiple occasions. We performed a laparotomy with excision of the abdominal wall mass through an inverted T incision. The extra-abdominal mass consisted of mixed cystic and solid components, and weighed 1.52 kg. It communicated with the abdominopelvic cavity through a 2 cm defect in the linea alba. The abdomen contained a large amount of odourless, brown fluid which drained into the mass. There was a large capsule that covered the small and large bowel, liver, gallbladder, and stomach. Final histology reported a 28*19*5 cm mass of endometrial tissue with no evidence of malignant transformation. The patient recovered well post-operatively and has remained asymptomatic. Our case illustrates that, despite being a common disease, endometriosis can masquerade as several other conditions and be missed or diagnosed late. Delay in diagnosis will not only prolong symptoms but can also compromise reproductive lifespan. It is therefore paramount that endometriosis is to be considered early in the management of premenopausal women who present with an irregular pelvic mass or hemorrhagic ascites. PMID- 29043712 TI - Uterus Dysplasia Associated with Cervico-Vaginal Agenesis. AB - Mullerian ducts can form upper parts of normal female reproductive system and any failure in ductal fusion may result in to mullerian duct anomalies (MDA). We present a case of MDA and a uterus dysplasia with no evidence of cervical or upper vaginal tissue. This case showes the role of magnetic resonace imaging (MRI) on MDA diagnosis and urges the need for a unified reliable and practical classification more compatible with clinical practice. PMID- 29043713 TI - Bioorthogonal chemical imaging of metabolic changes during epithelial-mesenchymal transition of cancer cells by stimulated Raman scattering microscopy. AB - Study of metabolic changes during epithelial-mesenchymal transition (EMT) of cancer cells is important for basic understanding and therapeutic management of cancer progression. We here used metabolic labeling and stimulated Raman scattering (SRS) microscopy, a strategy of bioorthogonal chemical imaging, to directly visualize changes in anabolic metabolism during cancer EMT at a single cell level. MCF-7 breast cancer cell is employed as a model system. Four types of metabolites (amino acids, glucose, fatty acids, and choline) are labeled with either deuterium or alkyne (C=C) tag. Their intracellular incorporations into MCF 7 cells before or after EMT are visualized by SRS imaging targeted at the signature vibration frequency of C-D or C=C bonds. Overall, after EMT, anabolism of amino acids, glucose, and choline is less active, reflecting slower protein and membrane synthesis in mesenchymal cells. Interestingly, we also observed less incorporation of glucose and palmitate acids into membrane lipids, but more of them into lipid droplets in mesenchymal cells. This result indicates that, although mesenchymal cells synthesize fewer membrane lipids, they are actively storing energy into lipid droplets, either through de novo lipogenesis from glucose or direct scavenging of exogenous free fatty acids. Hence, metabolic labeling coupled with SRS can be a straightforward method in imaging cancer metabolism. PMID- 29043714 TI - Spectroscopic Doppler analysis for visible-light optical coherence tomography. AB - Retinal oxygen metabolic rate can be effectively measured by visible-light optical coherence tomography (vis-OCT), which simultaneously quantifies oxygen saturation and blood flow rate in retinal vessels through spectroscopic analysis and Doppler measurement, respectively. Doppler OCT relates phase variation between sequential A-lines to the axial flow velocity of the scattering medium. The detectable phase shift is between -pi and pi due to its periodicity, which limits the maximum measurable unambiguous velocity without phase unwrapping. Using shorter wavelengths, vis-OCT is more vulnerable to phase ambiguity since flow induced phase variation is linearly related to the center wavenumber of the probing light. We eliminated the need for phase unwrapping using spectroscopic Doppler analysis. We split the whole vis-OCT spectrum into a series of narrow subbands and reconstructed vis-OCT images to extract corresponding Doppler phase shifts in all the subbands. Then, we quantified flow velocity by analyzing subband-dependent phase shift using linear regression. In the phantom experiment, we showed that spectroscopic Doppler analysis extended the measurable absolute phase shift range without conducting phase unwrapping. We also tested this method to quantify retinal blood flow in rodents in vivo. PMID- 29043715 TI - Quantitative light-induced fluorescence technology for quantitative evaluation of tooth wear. AB - Various technologies used to objectively determine enamel thickness or dentin exposure have been suggested. However, most methods have clinical limitations. This study was conducted to confirm the potential of quantitative light-induced fluorescence (QLF) using autofluorescence intensity of occlusal surfaces of worn teeth according to enamel grinding depth in vitro. Sixteen permanent premolars were used. Each tooth was gradationally ground down at the occlusal surface in the apical direction. QLF-digital and swept-source optical coherence tomography images were acquired at each grinding depth (in steps of 100 MUm). All QLF images were converted to 8-bit grayscale images to calculate the fluorescence intensity. The maximum brightness (MB) values of the same sound regions in grayscale images before (MBbaseline) and phased values after (MBworn) the grinding process were calculated. Finally, 13 samples were evaluated. MBworn increased over the grinding depth range with a strong correlation (r=0.994, P<0.001). In conclusion, the fluorescence intensity of the teeth and grinding depth was strongly correlated in the QLF images. Therefore, QLF technology may be a useful noninvasive tool used to monitor the progression of tooth wear and to conveniently estimate enamel thickness. PMID- 29043716 TI - Trust, but in what? PMID- 29043717 TI - ? PMID- 29043718 TI - [A woman in her 60s with diarrhea and joint pain]. PMID- 29043719 TI - Varicella zoster virus - need for better infection prevention and control. PMID- 29043720 TI - ? PMID- 29043722 TI - ? PMID- 29043721 TI - [In-hospital stroke]. PMID- 29043723 TI - ? PMID- 29043724 TI - ? PMID- 29043726 TI - ? PMID- 29043725 TI - ? PMID- 29043727 TI - ? PMID- 29043728 TI - ? PMID- 29043729 TI - ? PMID- 29043730 TI - [Not sham in Norwegian]. PMID- 29043731 TI - ? PMID- 29043732 TI - ? PMID- 29043733 TI - [Properties of cancer cell DNA affects the prognosis]. AB - BACKGROUND: When diagnosing cancer, it is often difficult to predict the further growth and spread of the tumour. One of the features of cancer is an abnormality in the amount of DNA in cancer cell nuclei, so-called DNA aneuploidy. Extensive abnormalities are often due to an unstable genome, which leads to an accumulation of mutations, dysregulation of genes and loss of cell cycle control. This article aims to provide an overview of the prognostic value of DNA ploidy analyses in ovarian, endometrial, prostate and colorectal carcinoma. MATERIAL AND METHOD: This review article is based on literature searches in PubMed for the period 2000 2016. RESULTS: The search resulted in 308 articles. Thirty-three of these, representing an analysis of more than 18 000 tumours, fulfilled the inclusion criteria. In 30 of the 33 articles, a significant correlation was found between DNA ploidy and disease outcome for patients with ovarian, endometrial, prostate and colorectal carcinoma. Patients with aneuploid tumours had a poorer prognosis than those with diploid tumours. INTERPRETATION: DNA ploidy analysis is a prognostic method for patients with ovarian and endometrial carcinoma, and is used as a guide to options for supplemental treatment and fertility-sparing surgery. A review of publications in recent years of DNA ploidy analyses for prostate and colorectal carcinoma reveals that these patient groups may also benefit from these measurements. In general terms, DNA ploidy analyses may help to increase knowledge of who needs supplemental treatment and who does not - which may be advantageous in avoiding overtreatment. PMID- 29043734 TI - ? PMID- 29043735 TI - [Logistic regression - applied and applicable]. PMID- 29043736 TI - Renal involvement in paediatric systemic vasculitis. AB - BACKGROUND: Primary systemic vasculitis is a rare condition in children, which often has a slowly progressive course with diffuse symptoms and is therefore easily overlooked. Early initiation of treatment can prevent severe kidney disease. The aim of this study was to survey the extent of renal involvement in children with systemic vasculitis at Oslo University Hospital, Rikshospitalet. MATERIAL AND METHOD: This observational retrospective study was based on a review of medical records, laboratory results and renal biopsies from first admission to last check-up at Oslo University Hospital, Rikshospitalet, for the period 2000 14. RESULTS: A total of 66 children (35 boys) under 18 years of age were treated at the hospital for primary systemic vasculitis in the period in question. Objective signs of renal involvement were found in 39 (59 %) at the first consultation and in 42 (64 %) over the course of the disease. Twenty-nine patients (44 %) underwent renal biopsy. Of the 41 patients with proven renal involvement that were still alive at the time of the last check-up, 12 continued to require treatment for renal impairment. Three patients had undergone renal transplantation, 18 were in remission on immunosuppressive or antihypertensive treatment, while 11 patients had achieved medication-free renal remission. INTERPRETATION: There is a high prevalence of renal involvement in paediatric patients treated for systemic vasculitis at Oslo University Hospital, Rikshospitalet. At their final check-up, the majority of patients continue to require treatment and follow-up for kidney disease. PMID- 29043737 TI - ? PMID- 29043738 TI - ? PMID- 29043739 TI - ? PMID- 29043740 TI - [Regulations on management and quality improvement in healthcare]. PMID- 29043741 TI - ? PMID- 29043742 TI - ? PMID- 29043743 TI - ? PMID- 29043744 TI - ? PMID- 29043745 TI - Treatment of wrist fractures 2009-14. AB - BACKGROUND: The purpose of the study was to conduct a systematic analysis based on data from the Norwegian Patient Registry and describe the incidence and treatment of wrist fractures among adults, at national level and in the catchment areas of the various regional health authorities. MATERIAL AND METHOD: A search was conducted in the Norwegian Patient Registry for all patients aged >= 18 years with diagnosis codes for wrist fractures in the period 2009-2014. Age, sex and type of treatment were recorded. The results are presented as rates adjusted for age and sex for the catchment areas of Norway's 21 regional health authorities. RESULTS: In the period 2009-2014, a total of 75 132 patients aged >= 18 years were registered as having a wrist fracture. Almost 1/3 of these patients received operative treatment. During this period, the age- and sex-adjusted rate of wrist fractures in Norway averaged 244 per 100 000 inhabitants per year. Operation rates varied across catchment areas by a factor of three, and the use of plates by a factor of nine. INTERPRETATION: We found great variation in clinical practice, which is reflected in differences in operation rates and choice of surgical method across the catchment areas to which the patients belong. PMID- 29043746 TI - ? PMID- 29043747 TI - ? PMID- 29043748 TI - ? PMID- 29043749 TI - Oculomotor nerve palsy. PMID- 29043750 TI - ? PMID- 29043751 TI - ? PMID- 29043752 TI - ? PMID- 29043753 TI - Chlamydia testing in practice - requisitioners and patients. AB - BACKGROUND: Optimising the diagnostic work-up and treatment of genital chlamydia infection requires knowledge of the sampling patterns of those who order chlamydia tests. We wished to determine which groups of doctors collect specimens for chlamydia testing, and to examine the sex and age distribution of patients tested, and the proportion of positive tests, from general practitioners, gynaecologists in private practice, and youth health services. MATERIAL AND METHOD: The study includes 43 465 specimens analysed for genital infection with Chlamydia trachomatis at Vestfold Hospital Trust over the period 1 January 2007 to 31 December 2011. Data from the laboratory information system were used to classify the test requisitioners. RESULTS: General practitioners requisitioned 60 % of all chlamydia tests and 63 % of all positive tests. Youth health services requisitioned 13 % of all tests and 22 % of positive tests; gynaecologists in private practice, 12 % of all tests and 5 % of positive tests. Overall, 26 % of specimens were from women over the age of 30 with 2.2 % testing positive, and 82 % of these specimens were submitted by general practitioners or gynaecologists in private practice. Twenty-three per cent of specimens were from men, and 78 % of these were collected in general practice. INTERPRETATION: Knowledge of who requisitions chlamydia testing and of whom is important for planning and improving chlamydia diagnosis, treatment and contact tracing. In this study from Norway, we found that doctors in general practice play a key role in diagnosing and treating chlamydia. The testing of women over the age of 30 by general practitioners and gynaecologists in private practice probably leads to unnecessary use of resources and should be reduced. PMID- 29043754 TI - ? PMID- 29043755 TI - ? PMID- 29043756 TI - ? PMID- 29043757 TI - There is no association between the presence of anti-thyroid antibodies and increased reproductive loss in pregnant women after ART: a systematic review and meta-analysis. AB - Women submitted to ART treatments represent a select subgroup of individuals. Several studies have described the relationship between TAI and pregnancy outcomes as a result of ART, with contradictory results. The purpose of this systematic review was to determine the association between TAI and the risk of miscarriage in pregnancies resulting from ART. MEDLINE via PubMed, LILACS and Embase were searched for studies published in peer-reviewed journals from 1999 to 2017. The studies were summarized using the fixed effects model and the Peto's method to calculate RR in order to flesh out the association between TAI and spontaneous abortion. Only four papers were included in this systematic review and meta-analysis. Thirty-one miscarriages were observed in 210 clinical pregnancies of women with antithyroid antibodies; and 158 miscarriages were seen in 1,371 pregnancies without antithyroid antibodies. The meta-analysis failed to find an association between TAI and higher risk of reproductive loss, RR=0.94 95% confidence interval: 0.71-1.24; p=0.879. In conclusion, the presence of antithyroid antibodies was not associated with increased reproductive loss in patients submitted to ART treatments. It is our opinion that the presence of antithyroid antibodies should be considered as a secondary biomarker of autoimmune disease, rather than an actual cause of miscarriage in patients undergoing ART. Due to the small amount of evidence on the matter, the determination of TAI before the initiation of ART should be limited to research contexts. PMID- 29043758 TI - Commentary - Food environment and vulnerable populations: challenges and opportunities for policy. PMID- 29043759 TI - "Highly processed, highly packaged, very unhealthy. But they are low risk": exploring intersections between community food security and food safety. AB - INTRODUCTION: Food insecurity and foodborne disease are important issues in Canada, and the public health actions taken to address them can be conceptualized as factors shaping the food environment. Given emerging evidence that these two areas may interrelate, the objective of this study was to explore ways in which community food security efforts and food safety practices (and the population health issues they aim to address) may intersect in British Columbia, Canada, and interpret what this might mean for conceptualizing and attaining healthier food environments. METHODS: We conducted 14 key informant interviews with practitioners working in community food security and food safety in British Columbia, and used qualitative descriptive analysis to identify examples of intersections between the sectors. RESULTS: Participants identified four key ways that the two sectors intersect. They identified (1) how their daily practices to promote safe or healthy food could be helped or hindered by the activities of the other sector; (2) that historically disjointed policies that do not consider multiple health outcomes related to food may complicate the interrelationship; (3) that the relationship of these sectors is also affected by the fact that specific types of food products, such as fresh produce, can be considered both risky and beneficial; and (4) that both sectors are working towards the same goal of improved population health, albeit viewing it through slightly different lenses. CONCLUSION: Food security and food safety connect in several ways, with implications for characterizing and improving Canadian food environments. Collaboration across separated public health areas related to food is needed when designing new programs or policies aimed at changing the way Canadians eat. PMID- 29043760 TI - Retail food environments, shopping experiences, First Nations and the provincial Norths. AB - INTRODUCTION: This paper looks at the market food environments of First Nations communities located in the provincial Norths by examining the potential retail competition faced by the North West Company (NWC) and by reporting on the grocery shopping experiences of people living in northern Canada. METHODS: We employed two methodological approaches to assess northern retail food environments. First, we mapped food retailers in the North to examine the breadth of retail competition in the provincial Norths, focussing specifically on those communities without year-round road access. Second, we surveyed people living in communities in northern Canada about their retail and shopping experiences. RESULTS: Fifty four percent of communities in the provincial Norths and Far North without year round road access did not have a grocery store that competed with the NWC. The provinces with the highest percentage of northern communities without retail competition were Ontario (87%), Saskatchewan (83%) and Manitoba (72%). Respondents to the survey (n = 92) expressed concern about their shopping experiences in three main areas: the cost of food, food quality and freshness, and availability of specific foods. CONCLUSION: There is limited retail competition in the provincial Norths. In Manitoba, Saskatchewan and Ontario, the NWC has no store competition in at least 70% of northern communities. Consumers living in northern Canada find it difficult to afford nutritious foods and would like access to a wider selection of perishable foods in good condition. PMID- 29043761 TI - Exploring sales data during a healthy corner store intervention in Toronto: the Food Retail Environments Shaping Health (FRESH) project. AB - INTRODUCTION: Population health interventions in the retail food environment, such as corner store interventions, aim to influence the kind of cues consumers receive so that they are more often directed toward healthier options. Research that addresses financial aspects of retail interventions, particularly using outcome measures such as store sales that are central to retail decision making, is limited. This study explored store sales over time and across product categories during a healthy corner store intervention in a lowincome neighbourhood in Toronto, Ontario. METHODS: Sales data (from August 2014 to April 2015) were aggregated by product category and by day. We used Microsoft Excel pivot tables to summarize and visually present sales data. We conducted t-tests to examine differences in product category sales by "peak" versus "nonpeak" sales days. RESULTS: Overall store sales peaked on the days at the end of each month, aligned with the issuing of social assistance payments. Revenue spikes on peak sales days were driven predominantly by transit pass sales. On peak sales days, mean sales of nonnutritious snacks and cigarettes were marginally higher than on other days of the month. Finally, creative strategies to increase sales of fresh vegetables and fruits seemed to substantially increase revenue from these product categories. CONCLUSION: Store sales data is an important store-level metric of food environment intervention success. Furthermore, data-driven decision making by retailers can be important for tailoring interventions. Future interventions and research should consider partnerships and additional success metrics for retail food environment interventions in diverse Canadian contexts. PMID- 29043762 TI - Food deserts in Winnipeg, Canada: a novel method for measuring a complex and contested construct. AB - INTRODUCTION: "Food deserts" have emerged over the past 20 years as spaces of concern for communities, public health authorities and researchers because of their potential negative impact on dietary quality and subsequent health outcomes. Food deserts are residential geographic spaces, typically in urban settings, where low-income residents have limited or no access to retail food establishments with sufficient variety at affordable cost. Research on food deserts presents methodological challenges including retail food store identification and classification, identification of low-income populations, and transportation and proximity metrics. Furthermore, the complex methods often used in food desert research can be difficult to reproduce and communicate to key stakeholders. To address these challenges, this study sought to demonstrate the feasibility of implementing a simple and reproducible method of identifying food deserts using data easily available in the Canadian context. METHODS: This study was conducted in Winnipeg, Canada in 2014. Food retail establishments were identified from Yellow Pages and verified by public health dietitians. We calculated two scenarios of food deserts based on location of the lowest-income quintile population: (a) living >= 500 m from a national chain grocery store, or (b) living >= 500 m from a national chain grocery store or a full-service grocery store. RESULTS: The number of low-income residents living in a food desert ranged from 64 574 to 104 335, depending on the scenario used. CONCLUSION: This study shows that food deserts affect a significant proportion of the Winnipeg population, and while concentrated in the urban core, exist in suburban neighbourhoods also. The methods utilized represent an accessible and transparent, reproducible process for identifying food deserts. These methods can be used for costeffective, periodic surveillance and meaningful engagement with communities, retailers and policy makers. PMID- 29043763 TI - Status report - Geographic retail food environment measures for use in public health. AB - The Association of Public Health Epidemiologists in Ontario (APHEO) Core Indicators Work Group standardizes definitions and calculation methods for over 120 public health indicators to enhance accurate and standardized community health status reporting across public health units in Ontario. The Built Environment Subgroup is a multi-disciplinary group made up of planners, researchers, policy analysts, registered dietitians, geographic information systems (GIS) analysts and epidemiologists. The Subgroup selected and operationalized a suite of objective, standardized indicators intended to help public health units and regional health authorities assess their community retail food environments. The Subgroup proposed three indicators that use readily available data sources and GIS tools to characterize geographic access to various types of retail food outlets within neighbourhoods in urban settings. This article provides a status report on the development of these food environment indicators. PMID- 29043764 TI - At-a-glance - Sentinel surveillance of emergency department presentations for barbecue brush-related injuries: the electronic Canadian Hospitals Injury Reporting and Prevention Program, 2011 to 2017. AB - A barbecue (BBQ) brush is a common household item designed for cleaning grills used for barbecuing. Data from the electronic Canadian Hospitals Injury Reporting and Prevention Program database were analysed to estimate the frequency of injuries related to BBQ brushes as a proportion of all injuries, as well as to describe characteristics associated with such injury events. Between April 1, 2011 and July 17, 2017, BBQ brush injuries were observed at a frequency of 1.5 cases per 100 000 eCHIRPP cases (N = 12). Findings suggest that in addition to risks associated with the ingestion of loose BBQ brush bristles attached to foods, loose bristles could also result in injury via other mechanisms. PMID- 29043765 TI - Boosting the Visible-Light Photoactivity of BiOCl/BiVO4/N-GQD Ternary Heterojunctions Based on Internal Z-Scheme Charge Transfer of N-GQDs: Simultaneous Band Gap Narrowing and Carrier Lifetime Prolonging. AB - The efficient separation of photogenerated electron-hole pairs in photoactive materials is highly desired, allowing their transfer to specific sites for undergoing redox reaction in various applications. The construction of ternary heterojunctions is a practical strategy to enhance the migration of photogenerated electron that realizes the synergistic effect of multicomponents rather than the simple overlay of single component. Here, we demonstrate an available way to fabricate new BiOCl/BiVO4/nitrogen-doped graphene quantum dot (N GQD) ternary heterojunctions that exhibit higher efficiency in charge separation than any binary heterojunction or pure material under visible-light irradiation. UV-vis diffuse reflectance spectroscopy demonstrated that the proposed BiOCl/BiVO4/N-GQD ternary heterojunctions possess the narrower band gap energy. More importantly, the ternary heterojunctions reveal the prolonged lifetime of photogenerated charges and enhanced the separation efficiency of photogenerated electron-hole pairs, which may be ascribed to sensitization based on an internal Z-scheme charge transfer at the interface of N-GQDs with oxygen functional groups. Furthermore, we examine the photoactive performance of proposed ternary heterojunctions in aqueous solution by using the photodegradation of bisphenol A as a model system and BiOCl/BiVO4/N-GQD ternary heterojunctions also display a dramatically enhanced photodegradation rate. The proposed charge separation and transfer process of BiOCl/BiVO4/N-GQD ternary heterojunctions for the enhanced photoactivity were deduced by electrochemical measurements, photoluminescence, and electron spin resonance. The results demonstrate that a Z-scheme charge process was formed between BiOCl/BiVO4 binary heterojunctions and N-GQDs, leading to an efficient charge carrier separation and strong photocatalytic ability. Notably, this work may assist in a better understanding of the role of N-GQDs in kinds of heterojunctions. Conceivably, it can be extended to fabricate other photocatalytic systems and photoelectrochemical platforms associated with photoactive materials. PMID- 29043766 TI - Solution-Processed Metal-Oxide p-n Charge Generation Junction for High Performance Inverted Quantum-Dot Light-Emitting Diodes. AB - We report solution-processed metal-oxide p-n junction, Li-doped CuO (Li:CuO) and Li-doped ZnO (Li:ZnO), as a charge generation junction (CGJ) in quantum-dot light emitting diode (QLED) at reverse bias. Efficient charge generation is demonstrated in a stack of air-annealed Li:CuO and Li:ZnO layers in QLEDs. Air annealing of Li:ZnO on Li:CuO turns out to be a key process to decrease oxygen vacancy (Vo) and increase the copper (II) oxide (CuO) fraction at the Li:CuO/Li:ZnO interface for efficient charge generation. Green QLEDs incorporating Li:CuO/Li:ZnO CGJ show the maximum current and power efficiencies of 35.4 cd/A and 33.5 lm/W, respectively. PMID- 29043767 TI - Synthesis of Ag3PO4 Crystals with Tunable Shapes for Facet-Dependent Optical Property, Photocatalytic Activity, and Electrical Conductivity Examinations. AB - This work has developed conditions for the synthesis of Ag3PO4 cubes, rhombic dodecahedra, {100}-truncated rhombic dodecahedra, tetrahedra, and tetrapods by tuning the amount of NH4NO3, NaOH, AgNO3, and K2HPO4 solutions added. Use of a minimal amount of AgNO3 solution can form much smaller rhombic dodecahedra and tetrahedra. Submicrometer-sized Ag3PO4 cubes and rhombic dodecahedra with sizes larger than 300 nm do not exhibit the optical size effect, but ~290 nm rhombic dodecahedra show a smaller band gap value than larger cubes, and tetrahedra show the most blue-shifted absorption edge. The optical facet effect is present in Ag3PO4 crystals. Ag3PO4 cubes are more photocatalytically active than rhombic dodecahedra toward photodegradation of methyl orange, but tetrahedra are inactive, showing clear presence of photocatalytic facet effects. Electron paramagnetic resonance results confirm much higher production of hydroxyl radicals from photoirradiated Ag3PO4 cubes than from rhombic dodecahedra, while tetrahedra yield essentially no radicals. A modified band diagram showing different degrees of band edge bending can explain these observations. All these Ag3PO4 crystals show poor electrical conductivity properties, but the {110} faces are slightly more conductive than the {100} faces. As a result, current rectifying I-V curves have been obtained, demonstrating that facet-dependent electrical properties are broadly observable in many semiconductor materials. This work reveals again that facet-dependent optical, photocatalytic, and electrical conductivity properties are intrinsic semiconductor properties. PMID- 29043768 TI - Infection of iPSC Lines with Miscarriage-Associated Coxsackievirus and Measles Virus and Teratogenic Rubella Virus as a Model for Viral Impairment of Early Human Embryogenesis. AB - Human induced pluripotent stem cell (iPSC) lines are a promising model for the early phase of human embryonic development. Here, their contribution to the still incompletely understood pathogenesis of congenital virus infections was evaluated. The infection of iPSC lines with miscarriage-associated coxsackievirus B3 (CVB3) and measles virus (MV) was compared to the efficient teratogen rubella virus (RV). While CVB3 and MV were found to be cytopathogenic on iPSC lines, RV replicated without impairment of iPSC colony morphology and integrity. This so far outstanding course of infection enabled maintenance of RV-infected iPSC cultures over several passages and their subsequent differentiation to ectoderm, endoderm, and mesoderm. A modification of the metabolic profile of infected iPSC lines was the only common aspect for all three viruses. This study points toward two important aspects. First, iPSC lines represent a suitable cell culture model for early embryonic virus infection. Second, metabolic activity represents an important means for evaluation of pathogen-associated alterations in iPSC lines. PMID- 29043769 TI - Nitrogen-Rich Conjugated Microporous Polymers: Facile Synthesis, Efficient Gas Storage, and Heterogeneous Catalysis. AB - Nitrogen-rich conjugated microporous polymers (NCMPs) have attracted great attention in recent years owing to their polarity, basicity, and ability to coordinate metal ions. Herein, three NCMPs, structurally close to polyaniline, were facilely synthesized via chemical oxidative polymerization between multiconnected aniline precursors. The NCMPs with high N content (11.84 wt %), intrinsic ultramicroporosity (<1 nm), and moderate surface area (485 m2 g-1) show wide-ranging adsorption functionality, e.g., CO2 uptake (11 wt %) and CO2 selectivity over N2 (360, 1 bar), 1.0 wt % H2 storage, as well as 215 wt % iodine vapor uptake at ambient pressure. Moreover, these NCMPs act as support for palladium catalysts and can maintain >94% activity in Suzuki-Miyaura coupling reactions after six continuous runs. PMID- 29043771 TI - Narrowing Plasmon Resonance Linewidth of Au Nanodome Lattices. AB - Gold hollow nanodomes arranged in hexagonal lattices support surface plasmon polaritons (SPPs) propagating at air-Au interface. The cross-sectional heights of the continuous and hierarchical hexagonal nanodome arrays can be altered by a simple thermal treatment, and the change in nanodome size leads to a significant linewidth narrowing of plasmon resonance because of reduced scattering loss. Taking the variation in the SPP intensities into account, the surface modulation depth is found to be around 100 nm for achieving a longer propagation length of SPP. PMID- 29043772 TI - Therapeutic Angiogenesis via Solar Cell-Facilitated Electrical Stimulation. AB - Cell therapy has been suggested as a treatment modality for ischemic diseases, but the poor survival and engraftment of implanted cells limit its therapeutic efficacy. To overcome such limitation, we used electrical stimulation (ES) derived from a wearable solar cell for inducing angiogenesis in ischemic tissue. ES enhanced the secretion of angiogenic growth factors and the migration of mesenchymal stem cells (MSCs), myoblasts, endothelial progenitor cells, and endothelial cells in vitro. In a mouse ischemic hindlimb model, ES generated by a solar cell and applied to the ischemic region promoted migration of MSCs toward the ischemic site and upregulated expression of angiogenic paracrine factors (vascular endothelial, basic fibroblast, and hepatocyte growth factors; and stromal cell-derived factor-1alpha). Importantly, solar cell-generated ES promoted the formation of capillaries and arterioles at the ischemic region, attenuated muscle necrosis and fibrosis, and eventually prevented loss of the ischemic limb. Solar cell ES therapy showed higher angiogenic efficacy than conventional MSC therapy. This study shows the feasibility of using solar cell ES as a novel treatment for therapeutic angiogenesis. PMID- 29043770 TI - A Novel Negative Allosteric Modulator Selective for GluN2C/2D-Containing NMDA Receptors Inhibits Synaptic Transmission in Hippocampal Interneurons. AB - N-Methyl-d-aspartate receptors (NMDARs) are ionotropic glutamate receptors that mediate excitatory synaptic transmission and have been implicated in numerous neurological disorders. NMDARs typically comprise two GluN1 and two GluN2 subunits. The four GluN2 subtypes (GluN2A-GluN2D) have distinct functional properties and gene expression patterns, which contribute to diverse functional roles for NMDARs in the brain. Here, we present a series of GluN2C/2D-selective negative allosteric modulators built around a N-aryl benzamide (NAB) core. The prototypical compound, NAB-14, is >800-fold selective for recombinant GluN2C/GluN2D over GluN2A/GluN2B in Xenopus oocytes and has an IC50 value of 580 nM at recombinant GluN2D-containing receptors expressed in mammalian cells. NAB 14 inhibits triheteromeric (GluN1/GluN2A/GluN2C) NMDARs with modestly reduced potency and efficacy compared to diheteromeric (GluN1/GluN2C/GluN2C) receptors. Site-directed mutagenesis suggests that structural determinants for NAB-14 inhibition reside in the GluN2D M1 transmembrane helix. NAB-14 inhibits GluN2D mediated synaptic currents in rat subthalamic neurons and mouse hippocampal interneurons, but has no effect on synaptic transmission in hippocampal pyramidal neurons, which do not express GluN2C or GluN2D. This series possesses some druglike physical properties and modest brain permeability in rat and mouse. Altogether, this work identifies a new series of negative allosteric modulators that are valuable tools for studying GluN2C- and GluN2D-containing NMDAR function in brain circuits, and suggests that the series has the potential to be developed into therapies for selectively modulating brain circuits involving the GluN2C and GluN2D subunits. PMID- 29043773 TI - Coherence Spectroscopy in the Condensed Phase: Insights into Molecular Structure, Environment, and Interactions. AB - The role of coherences, or coherently excited superposition states, in complex condensed-phase systems has been the topic of intense interest and debate for a number of years. In many cases, coherences have been utilized as spectators of ultrafast dynamics or for identifying couplings between electronic states. In rare cases, they have been found to drive excited state dynamics directly. Interestingly though, the utilization of coherences as a tool for high-detail vibronic spectroscopy has largely been overlooked until recently, despite their encoding of key information regarding molecular structure, electronically sensitive vibrational modes, and intermolecular interactions. Furthermore, their detection in the time domain makes for a highly comprehensive spectroscopic technique wherein the phase and dephasing times are extracted in addition to amplitude and intensity, an element not afforded in analogous frequency domain "steady-state" measurements. However, practical limitations arise in disentangling the large number of coherent signals typically accessed in broadband nonlinear spectroscopic experiments, often complicating assignment of the origin and type of coherences generated. Two-dimensional electronic spectroscopy (2DES) affords an avenue by which to disperse and decompose the large number of coherent signals generated in nonlinear experiments, facilitating the assignment of various types of quantum coherences. 2DES takes advantage of the broad bandwidth necessary for achieving the high time resolution desired for ultrafast dynamics and coherence generation by resolving the excitation axis to detect all excitation channels independently. This feature is beneficial for following population dynamics such as electronic energy transfer, and 2DES has become the choice method for such studies. Simultaneously, coherences arise as oscillations at well-defined coordinates across the 2D map often atop those evolving population signals. By isolating the coherent contribution to the 2DES data and Fourier transforming along the population time, a 3D spectral representation of the coherent 2D data is generated, and coherences are then ordered by their oscillation frequency, nu2. Individual coherences can then be selected by their frequency and evaluated via their distinct "2D coherence" spectra, yielding a significantly more distinctive set of spectroscopic signatures over other 1D methodologies and single-point 2DES analysis. Given that coherences of different origin result in unique 2D coherence spectra, these characteristics can be catalogued and compared directly against experiment for prompt assignment, a strategy not afforded by traditional 2DES analysis. In this Account, a structure-driven time-independent spectral model is discussed and employed to compare the 2D fingerprints of various coherences to experimental 2D coherence spectra. The frequency-domain approach can easily integrate ab initio derived vibronic parameters, and its correspondence with experimental coherence spectra of a model compound is demonstrated. Several examples and applications are discussed herein, from 2D Franck-Condon analysis of a model compound, to identifying the signatures of interpigment vibronic coupling in a photosynthetic light-harvesting complex. The 3D spectral approach to 2DES provides remarkable spectroscopic detail, in turn leading to new insights in molecular structure and interactions, which complement the time-resolved dynamics simultaneously recorded. The approach presented herein has the potential to distill down the convoluted set of nonlinear signals appearing in 2D coherent spectra, making the technique more amenable to high-detail vibronic spectroscopy in inherently complex condensed phase systems. PMID- 29043775 TI - Double-Sided Electrochromic Device Based on Metal-Organic Frameworks. AB - Devices displaying controllably tunable optical properties through an applied voltage are attractive for smart glass, mirrors, and displays. Electrochromic material development aims to decrease power consumption while increasing the variety of attainable colors, their brilliance, and their longevity. We report the first electrochromic device constructed from metal organic frameworks (MOFs). Two MOF films, HKUST-1 and ZnMOF-74, are assembled so that the oxidation of one corresponds to the reduction of the other, allowing the two sides of the device to simultaneously change color. These MOF films exhibit cycling stability unrivaled by other MOFs and a significant optical contrast in a lithium-based electrolyte. HKUST-1 reversibly changed from bright blue to light blue and ZnMOF 74 from yellow to brown. The electrochromic device associates the two MOF films via a PMMA-lithium based electrolyte membrane. The color-switching of these MOFs does not arise from an organic-linker redox reaction, signaling unexplored possibilities for electrochromic MOF-based materials. PMID- 29043774 TI - Augmenting Influenza-Specific T Cell Memory Generation with a Natural Killer T Cell-Dependent Glycolipid-Peptide Vaccine. AB - The development of a universal vaccine for influenza A virus (IAV) that does not require seasonal modification is a long-standing health goal, particularly in the context of the increasing threat of new global pandemics. Vaccines that specifically induce T cell responses are of considerable interest because they can target viral proteins that are more likely to be shared between different virus strains and subtypes and hence provide effective cross-reactive IAV immunity. From a practical perspective, such vaccines should induce T cell responses with long-lasting memory, while also being simple to manufacture and cost-effective. Here we describe the synthesis and evaluation of a vaccine platform based on solid phase peptide synthesis and bio-orthogonal conjugation methodologies. The chemical approach involves covalently attaching synthetic long peptides from a virus-associated protein to a powerful adjuvant molecule, alpha galactosylceramide (alpha-GalCer). Strain-promoted azide-alkyne cycloaddition is used as a simple and efficient method for conjugation, and pseudoproline methodology is used to increase the efficiency of the peptide synthesis. alpha GalCer is a glycolipid that stimulates NKT cells, a population of lymphoid resident immune cells that can provide potent stimulatory signals to antigen presenting cells engaged in driving proliferation and differentiation of peptide specific T cells. When used in mice, the vaccine induced T cell responses that provided effective prophylactic protection against IAV infection, with the speed of viral clearance greater than that seen from previous viral exposure. These findings are significant because the vaccines are highly defined, quick to synthesize, and easily characterized and are therefore appropriate for large scale affordable manufacture. PMID- 29043776 TI - Art Advancing Science: Filmmaking Leads to Molecular Insights at the Nanoscale. AB - Many have recognized the potential value of facilitating activities that span the art-science interface for the benefit of society; however, there are few examples that demonstrate how pursuit of an artistic agenda can lead to scientific insights. Here, we describe how we set out to produce an entertaining short film depicting the fertilization of the egg by sperm as a parody of a preview for another Star Wars movie to excite the public about science, but ended up developing a simulation tool for multiscale modeling. To produce an aesthetic that communicates mechanical continuity across spatial scales, we developed custom strategies that integrate physics-based animation software from the entertainment industry with molecular dynamics simulation tools, using experimental data from research publications. Using this approach, we were able to depict biological physicality across multiple spatial scales, from how sperm tails move to collective molecular behavior within the axoneme to how the molecular motor, dynein, produces force at the nanometer scale. The dynein simulations, which were validated by replicating results of past simulations and cryo-electron microscopic studies, also predicted a potential mechanism for how ATP hydrolysis drives dynein motion along the microtubule as well as how dynein changes its conformation when it goes through the power stroke. Thus, pursuit of an artistic work led to insights into biology at the nanoscale as well as the development of a highly generalizable modeling and simulation technology that has utility for nanoscience and any other area of scientific investigation that involves analysis of complex multiscale systems. PMID- 29043778 TI - Tetraphenylethylene-Based AIE-Active Probes for Sensing Applications. AB - This Review provides a comprehensive analysis of recent development in the field of aggregation-induced emission (AIE)-active tetraphenylethylene (TPE) luminophores and their applications in biomolecular science. It begins with a discussion of the diverse range of structural motifs that have found particular applications in sensing, and demonstrates that TPE structures and their derivatives have been used for a diverse range of analytes such as such as H+, anions, cations, heavy metals, organic volatiles, and toxic gases. Advances are discussed in depth where TPE is utilized as a mechanoluminescent material in bioinspired receptor units with specificity for analytes for such as glucose or RNA. The rapid advances in sensor research make this summary of recent developments in AIE-active TPE luminophores timely, in order to disseminate the advantages of these materials for sensing of analytes in solution, as well as the importance of solid and aggregated states in controlling sensing behavior. PMID- 29043777 TI - Isoform-Selective ATAD2 Chemical Probe with Novel Chemical Structure and Unusual Mode of Action. AB - ATAD2 (ANCCA) is an epigenetic regulator and transcriptional cofactor, whose overexpression has been linked to the progress of various cancer types. Here, we report a DNA-encoded library screen leading to the discovery of BAY-850, a potent and isoform selective inhibitor that specifically induces ATAD2 bromodomain dimerization and prevents interactions with acetylated histones in vitro, as well as with chromatin in cells. These features qualify BAY-850 as a chemical probe to explore ATAD2 biology. PMID- 29043779 TI - Reinforcing Germanium Electrode with Polymer Matrix Decoration for Long Cycle Life Rechargeable Lithium Ion Batteries. AB - Germanium is a promising anode material for lithium ion batteries because of its high theoretical specific capacity and low operation voltage. However, a significant challenge in using Ge-based anodes is the large volume variation during cycling that causes pulverization and capacity fade. Despite intense studies in the past decade, unsatisfactory cycling stability of the Ge-based electrodes still impedes their widespread applications. In this study, we demonstrate a high-performance electrode through the synergistic combination of a high-capacity Ge film grown on a three-dimensional current collector and an in situ formed poly(vinylidene fluoride)-hexafluoropropene/SiO2 protective layer. Specifically, the polymer matrix is in continuous contact with the surface of the Ge shell, which provides improved mechanical and ionic transport properties. As a highlight, we present impressive cycling stability over 3000 cycles at 1 C rate with a capacity retention as high as 95.7%. Furthermore, the LiCoO2-Ge full battery operates at an average voltage of 3.3 V at 0.5 C and maintains good electrochemical performance, suggesting great potential for applications in energy storage and conversion devices. PMID- 29043780 TI - Cucurbituril and Azide Cofunctionalized Graphene Oxide for Ultrasensitive Electro Click Biosensing. AB - To achieve high selectivity and sensitivity simultaneously in an electrochemical biosensing platform, cucurbituril and azide cofunctionalized graphene oxide, a new functional nanomaterial that acts as a go-between to connect the recognition element with amplified signal architecture, is developed in this work. The cucurbituril and azide cofunctionalized graphene oxide features a high specific surface area with abundant levels of the two types of functional groups. Specifically, it emerges as a powerful tool to link recognition elements with simplicity, high yield, rapidity, and highly selective reactivity through azide alkynyl click chemistry. Moreover, it possesses many host molecules to interact with guest molecules (also signal molecules)-grafted branched ethylene imine polymer, through which the detection sensitivity can be greatly improved. Together with electro-click technology, a highly controllable, selective, and sensitive biosensing platform can be easily created. For VEGF165 protein detection, the electro-click assay has high selectivity and sensitivity; a dynamic detection range from 10 fg mL-1 to 1 ng mL-1 with a detection limit of 8 fg mL-1 was achieved. The electro-click biosensing strategy based on cucurbituril and azide cofunctionalized graphene oxide would have great promise for other target analytes with a broad range of applications. PMID- 29043781 TI - Direct Writing Electrospinning of Scaffolds with Multidimensional Fiber Architecture for Hierarchical Tissue Engineering. AB - Nanofibrous structures have long been used as scaffolds for tissue engineering (TE) applications, due to their favorable characteristics, such as high porosity, flexibility, high cell attachment and enhanced proliferation, and overall resemblance to native extracellular matrix (ECM). Such scaffolds can be easily produced at a low cost via electrospinning (ESP), but generally cannot be fabricated with a regular and/or complex geometry, characterized by macropores and uniform thickness. We present here a novel technique for direct writing (DW) with solution ESP to produce complex three-dimensional (3D) multiscale and ultrathin (~1 MUm) fibrous scaffolds with desirable patterns and geometries. This technique was simply achieved via manipulating technological conditions, such as spinning solution, ambient conditions, and processing parameters. Three different regimes in fiber morphologies were observed, including bundle with dispersed fibers, bundle with a core of aligned fibers, and single fibers. The transition between these regimes depended on tip to collector distance (Wd) and applied voltage (V), which could be simplified as the ratio V/Wd. Using this technique, a scaffold mimicking the zonal organization of articular cartilage was further fabricated as a proof of concept, demonstrating the ability to better mimic native tissue organization. The DW scaffolds directed tissue organization and fibril matrix orientation in a zone-dependent way. Comparative expression of chondrogenic markers revealed a substantial upregulation of Sox9 and aggrecan (ACAN) on these structures compared to conventional electrospun meshes. Our novel method provides a simple way to produce customized 3D ultrathin fibrous scaffolds, with great potential for TE applications, in particular those for which anisotropy is of importance. PMID- 29043782 TI - Interfacial Engineering with Cross-Linkable Fullerene Derivatives for High Performance Perovskite Solar Cells. AB - Two fullerene derivatives with styryl and oxetane cross-linking groups served as interfacial materials to modify an electron-transporting layer (ETL) of TiO2, doped with Au nanoparticles, processed under low-temperature conditions to improve the performance of perovskite solar cells (PSC). The cross-linkable [6,6] phenyl-C61-butyric styryl dendron ester was produced via thermal treatment at 160 degrees C for 20 min, whereas the cross-linkable [6,6]-phenyl-C61-butyric oxetane dendron ester (C-PCBOD) was obtained via UV-curing treatment for 45 s. Both cross-linked fullerenes can passivate surface-trap states of TiO2 and have also excellent surface coverage on the TiO2 layer shown in the corresponding atomic force microscopy images. To improve the crystallinity of perovskite, we propose a simple co-solvent method involving mixing dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) in a specific ratio (DMF/DMSO = 90/10). The fullerene derivative layer between the ETL and perovskite layers significantly improved electron extraction and suppressed charge recombination by decreasing the density of traps at the ETL surface. A planar PSC device was fabricated with the configuration indium tin oxide/TiO2 (Au)/C-PCBOD/perovskite/spiro-OMeTAD/Au to attain a power conversion efficiency (PCE) of 15.9%. The device performance was optimized with C-PCBOD as an interfacial mediate to modify the surface of the mesoporous TiO2 ETL; the C-PCBOD-treated device attained a significantly enhanced performance, PCE 18.3%. Electrochemical impedance spectral and photoluminescence decay measurements were carried out to understand the characteristics of electron transfer and charge recombination of the perovskite/TiO2 samples with and without a fullerene interfacial layer. PMID- 29043783 TI - Marine Mammal Microbiota Yields Novel Antibiotic with Potent Activity Against Clostridium difficile. AB - The recent explosion of research on the microbiota has highlighted the important interplay between commensal microorganisms and the health of their cognate hosts. Metabolites isolated from commensal bacteria have been demonstrated to possess a range of antimicrobial activities, and it is widely believed that some of these metabolites modulate host behavior, affecting predisposition to disease and pathogen invasion. Our access to the local marine mammal stranding network and previous successes in mining the fish microbiota poised us to test the hypothesis that the marine mammal microbiota is a novel source of commensal bacteria produced bioactive metabolites. Examination of intestinal contents from five marine mammals led to the identification of a Micromonospora strain with potent and selective activity against a panel of Gram-positive pathogens and no discernible human cytotoxicity. Compound isolation afforded a new complex glycosylated polyketide, phocoenamicin, with potent activity against the intestinal pathogen Clostridium difficile, an organism challenging to treat in hospital settings. Use of our activity-profiling platform, BioMAP, clustered this metabolite with other known ionophore antibiotics. Fluorescence imaging and flow cytometry confirmed that phocoenamicin is capable of shifting membrane potential without damaging membrane integrity. Thus, exploration of gut microbiota in hosts from diverse environments can serve as a powerful strategy for the discovery of novel antibiotics against human pathogens. PMID- 29043784 TI - Estimating the High-Arsenic Domestic-Well Population in the Conterminous United States. AB - Arsenic concentrations from 20 450 domestic wells in the U.S. were used to develop a logistic regression model of the probability of having arsenic >10 MUg/L ("high arsenic"), which is presented at the county, state, and national scales. Variables representing geologic sources, geochemical, hydrologic, and physical features were among the significant predictors of high arsenic. For U.S. Census blocks, the mean probability of arsenic >10 MUg/L was multiplied by the population using domestic wells to estimate the potential high-arsenic domestic well population. Approximately 44.1 M people in the U.S. use water from domestic wells. The population in the conterminous U.S. using water from domestic wells with predicted arsenic concentration >10 MUg/L is 2.1 M people (95% CI is 1.5 to 2.9 M). Although areas of the U.S. were underrepresented with arsenic data, predictive variables available in national data sets were used to estimate high arsenic in unsampled areas. Additionally, by predicting to all of the conterminous U.S., we identify areas of high and low potential exposure in areas of limited arsenic data. These areas may be viewed as potential areas to investigate further or to compare to more detailed local information. Linking predictive modeling to private well use information nationally, despite the uncertainty, is beneficial for broad screening of the population at risk from elevated arsenic in drinking water from private wells. PMID- 29043785 TI - Elevated Exposures to Polycyclic Aromatic Hydrocarbons and Other Organic Mutagens in Ottawa Firefighters Participating in Emergency, On-Shift Fire Suppression. AB - Occupational exposures to combustion emissions were examined in Ottawa Fire Service (OFS) firefighters. Paired urine and dermal wipe samples (i.e., pre- and post-event) as well as personal air samples and fire event questionnaires were collected from 27 male OFS firefighters. A total of 18 OFS office workers were used as additional controls. Exposures to polycyclic aromatic hydrocarbons (PAHs) and other organic mutagens were assessed by quantification of urinary PAH metabolite levels, levels of PAHs in dermal wipes and personal air samples, and urinary mutagenicity using the Salmonella mutagenicity assay (Ames test). Urinary Clara Cell 16 (CC16) and 15-isoprostane F2t (8-iso-PGF2alpha) levels were used to assess lung injury and overall oxidative stress, respectively. The results showed significant 2.9- to 5.3-fold increases in average post-event levels of urinary PAH metabolites, depending on the PAH metabolite (p < 0.0001). Average post-event levels of urinary mutagenicity showed a significant, event-related 4.3-fold increase (p < 0.0001). Urinary CC16 and 8-iso-PGF2alpha did not increase. PAH concentrations in personal air and on skin accounted for 54% of the variation in fold changes of urinary PAH metabolites (p < 0.002). The results indicate that emergency, on-shift fire suppression is associated with significantly elevated exposures to combustion emissions. PMID- 29043786 TI - Measuring Nanoparticle Attachment Efficiency in Complex Systems. AB - As process-based environmental fate and transport models for engineered nanoparticles are developed, there is a need for relevant and reliable measures of nanoparticle behavior. The affinity of nanoparticles for various surfaces (alpha) is one such measure. Measurements of the affinity of nanoparticles obtained by flowing particles through a porous medium are constrained by the types of materials or exposure scenarios that can be configured into such column studies. Utilizing glass beads and kaolinite as model collector surfaces, we evaluate a previously developed mixing method for measuring nanoparticle attachment to environmental surfaces, and validate this method with an equivalent static column system over a range of organic matter concentrations and ionic strengths. We found that, while both impacted heteroaggregation rates in a predictable manner when varied individually, neither dominated when both parameters were varied. The theory behind observed nanoparticle heteroaggregation rates (alphabetaB) to background particles in mixed systems is also experimentally validated, demonstrating both collision frequency (beta) and background particle concentration (B) to be independent for use in fate modeling. We further examined the effects of collector particle composition (kaolinite vs glass beads) and nanoparticle surface chemistry (PVP, citrate, or humic acid) on alpha, and found a strong dependence on both. PMID- 29043787 TI - Rate of Lipid Peroxyl Radical Production during Cellular Homeostasis Unraveled via Fluorescence Imaging. AB - Reactive oxygen species (ROS) and their associated byproducts have been traditionally associated with a range of pathologies. It is now believed, however, that at basal levels these molecules also have a beneficial cellular function in the form of cell signaling and redox regulation. Critical to elucidating their physiological role is the opportunity to visualize and quantify the production of ROS with spatiotemporal accuracy. Armed with a newly developed, extremely sensitive fluorogenic alpha-tocopherol analogue (H4BPMHC), we report herein the observation of steady concentrations of lipid peroxyl radicals produced in live cell imaging conditions. Imaging studies with H4BPMHC indicate that the rate of production of lipid peroxyl radicals in HeLa cells under basal conditions is 33 nM/h within the cell. Our work further provides indisputable evidence on the antioxidant role of Vitamin E, as lipid peroxidation was suppressed in HeLa cells both under basal conditions and in the presence of Haber Weiss chemistry, generated by the presence of cumyl hydroperoxide and Cu2+ in solution, when supplemented with the alpha-tocopherol surrogate, PMHC (2,2,5,7,8 pentamethyl-6-hydroxy-chromanol, an alpha-tocopherol analogue lacking the phytyl tail). H4BPMHC has the sensitivity needed to detect trace changes in oxidative status within the lipid membrane, underscoring the opportunity to illuminate the physiological relevance of lipid peroxyl radical production during cell homeostasis and disease. PMID- 29043788 TI - Molecular Road Map to Tuning Ground State Absorption and Excited State Dynamics of Long-Wavelength Absorbers. AB - Realizing chromophores that simultaneously possess substantial near-infrared (NIR) absorptivity and long-lived, high-yield triplet excited states is vital for many optoelectronic applications, such as optical power limiting and triplet triplet annihilation photon upconversion (TTA-UC). However, the energy gap law ensures such chromophores are rare, and molecular engineering of absorbers having such properties has proven challenging. Here, we present a versatile methodology to tackle this design issue by exploiting the ethyne-bridged (polypyridyl)metal(II) (M; M = Ru, Os)-(porphinato)metal(II) (PM'; M' = Zn, Pt, Pd) molecular architecture (M-(PM')n-M), wherein high-oscillator-strength NIR absorptivity up to 850 nm, near-unity intersystem crossing (ISC) quantum yields (PhiISC), and triplet excited-state (T1) lifetimes on the microseconds time scale are simultaneously realized. By varying the extent to which the atomic coefficients of heavy metal d orbitals contribute to the one-electron excitation configurations describing the initially prepared singlet and triplet excited state wave functions, we (i) show that the relative magnitudes of fluorescence (k0F), S1 -> S0 nonradiative decay (knr), S1 -> T1 ISC (kISC), and T1 -> S0 relaxation (kT1->S0) rate constants can be finely tuned in M-(PM')n-M compounds and (ii) demonstrate designs in which the kISC magnitude dominates singlet manifold relaxation dynamics but does not give rise to T1 -> S0 conversion dynamics that short-circuit a microseconds time scale triplet lifetime. Notably, the NIR spectral domain absorptivities of M-(PM')n-M chromophores far exceed those of classic coordination complexes and organic materials possessing similarly high yields of triplet-state formation: in contrast to these benchmark materials, this work demonstrates that these M-(PM')n-M systems realize near unit PhiISC at extraordinarily modest S1-T1 energy gaps (~0.25 eV). This study underscores the photophysical diversity of the M-(PM')n-M platform and presents a new library of long-wavelength absorbers that efficiently populate long-lived T1 states. PMID- 29043789 TI - Light-driven Hydrogen Evolution from Water by a Tripodal Silane Based CoII6L18 Octahedral Cage. AB - The octahedral cage assembly [CoII6L18Cl6(H2O)6]Cl6 has been synthesized in a single-step reaction by using a polypyridyl-functionalized tripodal silane ligand. The electrochemical behavior of the cage in water exhibits the pH dependence of potential as well as catalytic current indicating the possible involvement of proton-coupled electron transfer in H2 evolution. Electrocatalytic hydrogen evolution from an aqueous buffered solution gave a turnover frequency of 16 h-1. Further, this cage assembly has been explored as a photocatalyst (blue light irradiation lambda 469 nm) for the evolution of H2 from water in the presence of Ru(bpy)32+ as a photosensitizer and ascorbic acid as a sacrificial electron donor. This catalytic reaction is found to be pseudo first order with a turnover frequency of 20.50 h-1. PMID- 29043792 TI - Rates of Cr(VI) Generation from CrxFe1-x(OH)3 Solids upon Reaction with Manganese Oxide. AB - The reaction of manganese oxides with Cr(III)-bearing solids in soils and sediments can lead to the natural production of Cr(VI) in groundwater. Building on previous knowledge of MnO2 as an oxidant for Cr(III)-containing solids, this study systematically evaluated the rates and mechanisms of the oxidation of Cr(III) in iron oxides by delta-MnO2. The Fe/Cr ratio (x = 0.055-0.23 in CrxFe1 x(OH)3) and pH (5-9) greatly influenced the Cr(VI) production rates by controlling the solubility of Cr(III) in iron oxides. We established a quantitative relationship between Cr(VI) production rates and Cr(III) solubility of CrxFe1-x(OH)3, which can help predict Cr(VI) production rates at different conditions. The adsorption of Cr(VI) and Mn(II) on solids shows a typical pH dependence for anions and cations. A multichamber reactor was used to assess the role of solid-solid contact in CrxFe1-x(OH)3-MnO2 interactions, which eliminates the contact of the two solids while still allowing aqueous species transport across a permeable membrane. Cr(VI) production rates were much lower in multichamber than in completely mixed batch experiments, indicating that the redox interaction is accelerated by mixing of the solids. Our results suggest that soluble Cr(III) released from CrxFe1-x(OH)3 solids to aqueous solution can migrate to MnO2 surfaces where it is oxidized. PMID- 29043791 TI - Lyophilized Engineered Phages for Escherichia coli Detection in Food Matrices. AB - Ease of use, low cost, and convenient transport are the key requirements for a commercial bacteria detection kit designed for resource-limited settings. Here, we report the colorimetric detection of Escherichia coli (E. coli) in food samples using freeze-dried engineered bacteriophages (phages). In this approach, we have engineered T7 phages to carry the lacZ operon driven by T7 promoter to overexpress reporter enzymes. The engineered phages were freeze-dried in a water soluble polymer for storage and transportation. When used for the detection of E. coli cells, the intracellular enzyme [beta-galactosidase (beta-gal)] was overexpressed and released into the surrounding media, providing an enzyme amplified colorimetric signal. Using this strategy, we were able to detect E. coli cells at the concentration of 102 CFU mL-1 in food samples without the need for sophisticated instruments or skilled operators. PMID- 29043790 TI - Emissive Synthetic Cofactors: An Isomorphic, Isofunctional, and Responsive NAD+ Analogue. AB - The synthesis, photophysics, and biochemical utility of a fluorescent NAD+ analogue based on an isothiazolo[4,3-d]pyrimidine core (NtzAD+) are described. Enzymatic reactions, photophysically monitored in real time, show NtzAD+ and NtzADH to be substrates for yeast alcohol dehydrogenase and lactate dehydrogenase, respectively, with reaction rates comparable to that of the native cofactors. A drop in fluorescence is seen as NtzAD+ is converted to NtzADH, reflecting a complementary photophysical behavior to that of the native NAD+/NADH. NtzAD+ and NtzADH serve as substrates for NADase, which selectively cleaves the nicotinamide's glycosidic bond yielding tzADP-ribose. NtzAD+ also serves as a substrate for ribosyl transferases, including human adenosine ribosyl transferase 5 (ART5) and Cholera toxin subunit A (CTA), which hydrolyze the nicotinamide and transfer tzADP-ribose to an arginine analogue, respectively. These reactions can be monitored by fluorescence spectroscopy, in stark contrast to the corresponding processes with the nonemissive NAD+. PMID- 29043793 TI - Hexagonally Ordered Arrays of alpha-Helical Bundles Formed from Peptide-Dendron Hybrids. AB - Combining monodisperse building blocks that have distinct folding properties serves as a modular strategy for controlling structural complexity in hierarchically organized materials. We combine an alpha-helical bundle-forming peptide with self-assembling dendrons to better control the arrangement of functional groups within cylindrical nanostructures. Site-specific grafting of dendrons to amino acid residues on the exterior of the alpha-helical bundle yields monodisperse macromolecules with programmable folding and self-assembly properties. The resulting hybrid biomaterials form thermotropic columnar hexagonal mesophases in which the peptides adopt an alpha-helical conformation. Bundling of the alpha-helical peptides accompanies self-assembly of the peptide dendron hybrids into cylindrical nanostructures. The bundle stoichiometry in the mesophase agrees well with the size found in solution for alpha-helical bundles of peptides with a similar amino acid sequence. PMID- 29043794 TI - Dynamic Transition from alpha-Helices to beta-Sheets in Polypeptide Coiled-Coil Motifs. AB - We carried out dynamic force manipulations in silico on a variety of coiled-coil protein fragments from myosin, chemotaxis receptor, vimentin, fibrin, and phenylalanine zippers that vary in size and topology of their alpha-helical packing. When stretched along the superhelical axis, all superhelices show elastic, plastic, and inelastic elongation regimes and undergo a dynamic transition from the alpha-helices to the beta-sheets, which marks the onset of plastic deformation. Using the Abeyaratne-Knowles formulation of phase transitions, we developed a new theoretical methodology to model mechanical and kinetic properties of protein coiled-coils under mechanical nonequilibrium conditions and to map out their energy landscapes. The theory was successfully validated by comparing the simulated and theoretical force-strain spectra. We derived the scaling laws for the elastic force and the force for alpha-to-beta transition, which can be used to understand natural proteins' properties as well as to rationally design novel biomaterials of required mechanical strength with desired balance between stiffness and plasticity. PMID- 29043795 TI - Small Microbial Three-Electrode Cell Based Biosensor for Online Detection of Acute Water Toxicity. AB - The monitoring of toxicity of water is very important to estimate the safety of drinking water and the level of water pollution. Herein, a small microbial three electrode cell (M3C) biosensor filled with polystyrene particles was proposed for online monitoring of the acute water toxicity. The peak current of the biosensor related with the performance of the bioanode was regarded as the toxicity indicator, and thus the acute water toxicity could be determined in terms of inhibition ratio by comparing the peak current obtained with water sample to that obtained with nontoxic standard water. The incorporation of polystyrene particles in the electrochemical cell not only reduced the volume of the samples used, but also improved the sensitivity of the biosensor. Experimental conditions including washing time with PBS and the concentration of sodium acetate solution were optimized. The stability of the M3C biosensor under optimal conditions was also investigated. The M3C biosensor was further examined by formaldehyde at the concentration of 0.01%, 0.03%, and 0.05% (v/v), and the corresponding inhibition ratios were 14.6%, 21.6%, and 36.4%, respectively. This work provides a new insight into the development of an online toxicity detector based on M3C biosensor. PMID- 29043796 TI - Composite Hydrogels Containing Bioactive Microreactors for Optical Enzymatic Lactate Sensing. AB - Continuously monitoring specific biomarkers offer a promising method to interrogate disease status and progression. In this work we have demonstrated a composite hydrogel-based sensing platform that may be used for optical detection of lactate. The sensor design consists of microsized enzymatic sensors that are embedded in an outer hydrogel matrix. In these engineered microdomains, encapsulated lactate oxidase serves as the bioactive component, phosphorescent metalloporphyrin acts as the optical transducer, and polyelectrolyte multilayers coated on the enzymatic microsensors control the permeation of lactate into the microsensors. The response of the composite hydrogel-based lactate sensors was characterized by subjecting the sensors to lactate concentration challenges at low physiological oxygen levels. The analytical range and the mean sensitivity were determined to be 9.2 +/- 0.83 mg/dL and 11 +/- 0.90% dL mg-1, respectively. Repeated cyclic exposure to high levels of lactate revealed that these sensors were extremely stable, with no significant loss in sensor response after 20 cycles. These preliminary results support the premise that these composite hydrogels are capable of continuous lactate tracking and have the potential for use as fully implantable optical lactate sensors. PMID- 29043797 TI - Metal Oxides in Surface Sediment Control Nickel Bioavailability to Benthic Macroinvertebrates. AB - In aquatic ecosystems, the cycling and toxicity of nickel (Ni) are coupled to other elemental cycles that can limit its bioavailability. Current sediment risk assessment approaches consider acid-volatile sulfide (AVS) as the major binding phase for Ni, but have not yet incorporated ligands that are present in oxic sediments. Our study aimed to assess how metal oxides play a role in Ni bioavailability in surficial sediments exposed to effluent from two mine sites. We coupled spatially explicit sediment geochemistry (i.e., separate oxic and suboxic) to the indigenous macroinvertebrate community structure. Effluent exposed sites contained high concentrations of sediment Ni and AVS, though roughly 80% less AVS was observed in surface sediments. Iron (Fe) oxide mineral concentrations were elevated in surface sediments and bound a substantial proportion of Ni. Redundancy analysis of the invertebrate community showed surface sediment geochemistry significantly explained shifts in community abundances. Relative abundance of the dominant mayfly (Ephemeridae) was reduced in sites with greater bioavailable Ni, but accounting for Fe oxide-bound Ni greatly decreased variation in effect thresholds between the two mine sites. Our results provide field-based evidence that solid-phase ligands in oxic sediment, most notably Fe oxides, may have a critical role in controlling nickel bioavailability. PMID- 29043798 TI - Jozilebomines A and B, Naphthylisoquinoline Dimers from the Congolese Liana Ancistrocladus ileboensis, with Antiausterity Activities against the PANC-1 Human Pancreatic Cancer Cell Line. AB - Two new naphthylisoquinoline dimers, jozilebomines A (1a) and B (1b), were isolated from the roots of the Congolese plant Ancistrocladus ileboensis, along with the known dimer jozimine A2 (2). These compounds are Dioncophyllaceae-type metabolites, i.e., lacking oxygen functions at C-6 and with an R-configuration at C-3 in their tetrahydroisoquinoline moieties. The dimers 1a and 1b consist of two 7,1'-coupled naphthylisoquinoline monomers linked through an unprecedented 3',6" coupling in the binaphthalene core and not, as in 2, via the C-3-positions of the two naphthalene units. Thus, different from the C2-symmetric jozimine A2 (2), the new jozilebomines are constitutionally unsymmetric. The central biaryl axis of each of the three dimers is rotationally hindered, so that 1a, 1b, and 2 possess three consecutive chiral axes. The two jozilebomines have identical constitutions and the same absolute configurations at all four stereogenic centers, but differ from each other in their axial chirality. Their structural elucidation was achieved by HRESIMS, 1D and 2D NMR, oxidative degradation, and experimental and calculated ECD data. They exhibited distinct and specific antiplasmodial activities. All dimers showed potent cytotoxicity against HeLa human cervical cancer cells and preferential cytotoxicity against PANC-1 human pancreatic cancer cells under nutrition-deprived conditions. Furthermore, these dimers significantly inhibited the colony formation of PANC-1 cells, even when exposed to noncytotoxic concentration for a short time. Jozilebomines A (1a) and B (1b) and jozimine A2 (2) represent novel potential candidates for future drug development against pancreatic cancer. PMID- 29043799 TI - Influence of the Trans/Cis Conformer Ratio on the Stereoselectivity of Peptidic Catalysts. AB - Trans/cis isomerization of Xaa-Pro bonds is key for the structure and function of several enzymes. In recent years, numerous versatile peptidic catalysts have been developed that bear Xaa-Pro amide bonds. Due to the many degrees of freedom within even short peptides, the design and optimization of peptidic catalysts by rational structural modifications is difficult. We envisioned that control over the trans/cis amide bond ratio may provide a tool to optimize the catalytic performance of peptidic catalysts. Here, we investigated the influence of the amide bond conformation on the stereoselectivity of H-Pro-Pro-Xaa-NH2-type peptidic catalysts in conjugate addition reactions. The middle Pro residue within the tripeptides was replaced with analogues of varying ring sizes (azetidine carboxylic acid, Aze, and piperidine carboxylic acid, Pip) to produce different trans/cis ratios in different solvents. The studies revealed a direct correlation between the trans/cis amide bond ratio and the enantio- and diastereoselectivity of structurally related peptidic catalysts. These insights led to the identification of H-d-Pro-Pip-Glu-NH2 as a highly reactive and stereoselective amine-based catalyst that allows C-C bond formations to be performed in the presence of as little as 0.05 mol %, which is the lowest catalyst loading yet achieved for organocatalyzed reactions that rely on an enamine-based mechanism. PMID- 29043800 TI - Stabilization of the Cubic Crystalline Phase in Organometal Halide Perovskite Quantum Dots via Surface Energy Manipulation. AB - Surface functionalization of nanoscale materials has a significant impact on their properties. We have demonstrated the effect of different passivating ligands on the crystal phase of organometal halide perovskite quantum dots (PQDs). Using static and dynamic spectroscopy, we studied phase transitions in CH3NH3PbBr3 PQDs ligated with either octylaminebromide (P-OABr) or 3-aminopropyl triethoxysilane (P-APTES). Around 140 K, P-OABr underwent a structural phase transition from tetragonal to orthorhombic, established by the emergence of a higher energy band in the photoluminescence (PL) spectrum. This was not observed in P-APTES, despite cooling down to 20 K. Additionally, time-resolved and excitation power-dependent PL, as well as Raman spectroscopy over a range of 300 20 K, revealed that recombination rates and types of charge carriers involved are significantly different in P-APTES and P-OABr. Our findings highlight how aspects of PQD phase stabilization are linked to nanoscale morphology and the crystal phase diagram. PMID- 29043801 TI - Compressibility Anomalies in Stretched Water and Their Interplay with Density Anomalies. AB - Water keeps puzzling scientists because of its numerous properties which behave oppositely to those of usual liquids: for instance, water expands upon cooling, and liquid water is denser than ice. To explain this anomalous behavior, several theories have been proposed, with different predictions for the properties of supercooled water (liquid at conditions where ice is stable). However, discriminating between those theories with experiments has remained elusive because of spontaneous ice nucleation. Here we measure the sound velocity in liquid water stretched to negative pressure and derive an experimental equation of state, which reveals compressibility anomalies. We show by rigorous thermodynamic relations how these anomalies are intricately linked with the density anomaly. Some features we observe are necessary conditions for the validity of two theories of water. PMID- 29043802 TI - Sporothriolide-Related Compounds from the Fungus Hypoxylon monticulosum CLL-205 Isolated from a Sphaerocladina Sponge from the Tahiti Coast. AB - Two sporothriolide-related compounds were obtained from an extract of the fungus Hypoxylon monticulosum CLL-205, isolated from a Sphaerocladina sponge collected from the Tahiti coast. Compound 2 is a deoxy analogue of sporothric acid (4). Compound 3 is a newly reported unusual scaffold combining sporothriolide (1) and trienylfuranol A (5) moieties, through a Diels-Alderase-type reaction. Various experimental and analytical arguments supported the biocatalytic origin of compound 3. The structures of the isolated compounds were elucidated using 1D and 2D NMR, HRMS, and IR data. The structure and the absolute configuration of 3 were unambiguously confirmed by a single-crystal X-ray diffraction analysis. PMID- 29043803 TI - Identification of Privileged Antichlamydial Natural Products by a Ligand-Based Strategy. AB - The obligate intracellular pathogen Chlamydia pneumoniae remains a difficult target for antimicrobial therapy. Owing to the permeability barrier placed by bacterial and host vacuolar membranes, as well as the propensity of the bacterium for persistent infections, treatment failures are common. Despite the urgent need for new antichlamydial compounds, their discovery is challenged by the technically demanding assay procedures and lack of validated targets. An alternative strategy of using naturally occurring compounds and their derivatives against C. pneumoniae is presented. The strategy consists of the application of ligand-based virtual screening to a natural product library of 502 compounds with the ChemGPS-NP chemography tool followed by in vitro antichlamydial assays. The reference set used for the 2D similarity search was constructed of 19 known antichlamydial compounds of plant origin. Based on the similarity screen, 53 virtual hits were selected for in vitro testing. Six compounds (leads) were identified that cause >=50% C. pneumoniae growth inhibition and showed no impact on host cell viability. The leads fall into completely new antichlamydial chemotypes, one of them being mycophenolic acid (IC50 value 0.3 MUM). The outcome indicates that using this flipped, target-independent strategy is useful for facilitating the antimicrobial lead discovery against challenging microbes. PMID- 29043804 TI - Proton-Assisted Recoupling (PAR) in Peptides and Proteins. AB - Proton-assisted recoupling (PAR) is examined by exploring optimal experimental conditions and magnetization transfer rates in a variety of biologically relevant nuclear spin-systems, including simple amino acids, model peptides, and two proteins-nanocrystalline protein G (GB1), and importantly amyloid beta 1-42 (M0Abeta1-42) fibrils. A selective PAR protocol, SUBPAR (setting up better proton assisted recoupling), is described to observe magnetization transfer in one dimensional spectra, which minimizes experiment time (in comparison to two dimensional experiments) and thereby enables an efficient assessment of optimal PAR conditions for a desired magnetization transfer. In the case of the peptide spin systems, experimental and simulated PAR data sets are compared on a semiquantitative level, thereby elucidating the interactions influencing PAR magnetization transfer and their manifestations in different spin transfer networks. Using the optimum Rabi frequencies determined by SUBPAR, PAR magnetization transfer trajectories (or buildup curves) were recorded and compared to simulated results for short peptides. PAR buildup curves were also recorded for M0Abeta1-42 and examined conjointly with a recent structural model. The majority of salient cross-peak intensities observed in the M0Abeta1-42 PAR spectra are well-modeled with a simple biexponential equation, although the fitting parameters do not show any strong correlation to internuclear distances. Nevertheless, these parameters provide a wealth of invaluable semiquantitative structural constraints for the M0Abeta1-42. The results presented here offer a complete protocol for recording PAR 13C-13C correlation spectra with high efficiency and using the resulting information in protein structural studies. PMID- 29043805 TI - Mitogen-Activated Protein Kinase Kinase 5 Regulates Proliferation and Biosynthetic Processes in Procyclic Forms of Trypanosoma brucei. AB - The pathogenic protozoan T. brucei alternates into distinct developmental stages in the mammalian and insect hosts. The mitogen-activated protein kinase (MAPK) signaling pathways transduce extracellular stimuli into a range of cellular responses, which ultimately lead to the adaptation to the external environment. Here, we combined a loss of function approach with stable isotope labeling with amino acids in cell culture (SILAC)-based mass spectrometry (MS) to investigate the role of the mitogen-activated protein kinase kinase 5 (MKK5) in T. brucei. The silencing of MKK5 significantly decreased the proliferation of procyclic forms of T. brucei. To shed light on the molecular alterations associated with this phenotype, we measured the total proteome and phosphoproteome of cells silenced for MKK5. In the total proteome, we observed a general decrease in proteins related to ribosome and translation as well as down-regulation of several components of the fatty acids biosynthesis pathway. In addition, we observed alterations in the protein levels and phosphorylation of key metabolic enzymes, which point toward a suppression of the oxidative metabolism. Taken together, our findings show that the silencing of MKK5 alters cell growth, energy metabolism, protein and fatty acids biosynthesis in procyclic T. brucei. PMID- 29043806 TI - High Hole-Mobility Molecular Layer Made from Strong Electron Acceptor Molecules with Metal Adatoms. AB - The electronic structure of 7,7,8,8-tetracyanoquinodimethane (TCNQ) and 2,3,5,6 tetrafluoro-TCNQ (F4TCNQ) monolayers on Au(111) has been investigated by means of angle-resolved photoemission spectroscopy (ARPES) with synchrotron radiation. In contrast to the physisorbed TCNQ/Au(111) interface, the high-resolution core level photoemission spectra and the low-energy electron diffraction at the F4TCNQ/Au(111) interface show evidence for the strong charge transfer (CT) from Au to F4TCNQ and for the Au atom segregation from the underlying Au(111) surface, suggesting a possible origin of the spontaneous formation of the two-dimensional F4TCNQ-Au network. The ARPES experiment reveals a low hole-injection barrier and large band dispersion in the CT-induced topmost valence level of the F4TCNQ-Au network with 260 meV bandwidth due to the adatom-mediated intermolecular interaction. These results indicate that strong electron acceptor molecules with metal adatoms can form high hole-mobility molecular layers by controlling the molecule-metal ordered structure and their CT interaction. PMID- 29043807 TI - 2,3-Dihydro-3beta-methoxy Withaferin-A Protects Normal Cells against Stress: Molecular Evidence of Its Potent Cytoprotective Activity. AB - 2,3-Dihydro-3beta-methoxy withaferin-A (3betamWi-A) is a natural withanolide that is structurally close to withaferin-A (Wi-A), is cytotoxic to human cancer cells, and is a candidate anticancer natural compound. Using cell-based biochemical, molecular, and imaging assays, we report that Wi-A and 3betamWi-A possess contrasting activities. Whereas Wi-A caused oxidative stress to normal cells, 3betamWi-A was well tolerated at even 10-fold higher concentrations. Furthermore, it promoted survival and protected normal cells against oxidative, UV radiation, and chemical stresses. We provide molecular evidence that 3betamWi-A induces antistress and pro-survival signaling through activation of the pAkt/MAPK pathway. We demonstrate that 3betamWi-A (i) contrary to Wi-A is safe and possesses stress-relieving activity, (ii) when given subsequent to a variety of stress factors including Wi-A, protects normal cells against their toxicity, and (iii) is a vital compound that may guard normal cells against the toxicity associated with various targeted therapeutic regimes in clinical practice. PMID- 29043808 TI - Cobalt-Catalyzed Oxidative Cyclization of Benzamides with Maleimides: Synthesis of Isoindolone Spirosuccinimides. AB - The oxidative cyclization of substituted benzamides with maleimides assisted by 8 aminoquinoline in the presence of a catalytic amount of Co(OAc)2.4H2O provides isoindolone spirosuccinimides in good to excellent yields. The cyclization reaction was compatible with various substituted benzamides and maleimides. A possible reaction mechanism involving the C-H bond activation as a key step was proposed. The competition experiment and deuterium labeling studies were performed to investigate the mechanism of the reaction. PMID- 29043809 TI - Adsorption at the Air-Water Interface in Biosurfactant-Surfactant Mixtures: Quantitative Analysis of Adsorption in a Five-Component Mixture. AB - The composition of the air-water adsorbed layer of a quinary mixture consisting of three conventional surfactants, octaethylene glycol monododecyl ether (C12E8), dodecane-6-p-sodium benzene sulfonate (LAS6), and diethylene glycol monododecyl ether sodium sulfate (SLE2S), mixed with two biosurfactants, the rhamnolipids l rhamnosyl-l-rhamnosyl-beta-hydroxydecanoyl-beta-hydroxydecanoyl, R2, and l rhamnosyl-beta-hydroxydecanoyl-beta-hydroxydecanoyl, R1, has been measured over a range of compositions above the mixed critical micelle concentration. Additional measurements on some of the subsets of ternary and binary mixtures have also been measured by NR. The results have been analyzed using the pseudophase approximation (PPA) in conjunction with an excess free energy, GE, that depends on the quadratic and cubic terms in the composition. The compositions of the binary, ternary, and quinary mixtures could all be fitted to two sets of interaction parameters between the pairs of surfactants, one for micelles and one for adsorption. No ternary interactions or ternary corrections were required. Because the system contains two strongly anionic surfactants, the PPA can be extended, in practice, to ionic surfactants, contrary to the prevailing view. The values of the interaction parameters show that the quinary mixture, SLE2S-LAS6 C12E8-R1-R2, which is known to be a highly effective surfactant system, is characterized by a sequence of strong surface but weak micellar interactions. About half of the minima in GE for the strong surface interactions occur well away from the regular solution value of 0.5. PMID- 29043810 TI - Structure and Thermodynamics of Metal Clusters on Atomically Smooth Substrates. AB - We analyze the structure of model NiN and CuN clusters (N = 55, 147) supported on a variety of atomically smooth van der Waals surfaces. The global minima are mapped in the space of two parameters: (i) the laterally averaged surface stickiness, gamma, which controls the macroscopic wetting angle, and (ii) the surface microstructure, which produces more subtle but important templating via epitaxial stresses. We find that adjusting the substrate lattice (even at constant gamma) can favor different crystal plane orientations in the cluster, stabilize hexagonal close-packed order, or induce various defects, such as stacking faults, twin boundaries, and five-fold disclinations. Thermodynamic analysis reveals substrate-dependent solid-solid transitions in cluster morphology, with tunable transition temperature and sometimes exhibiting re entrant behavior. These results shed new light on the extent to which a supporting surface can be used to influence the equilibrium behavior of nanoparticles. PMID- 29043811 TI - Investigation of the Intra- and Interlaboratory Reproducibility of a Small Scale Standardized Supersaturation and Precipitation Method. AB - The high number of poorly water-soluble compounds in drug development has increased the need for enabling formulations to improve oral bioavailability. One frequently applied approach is to induce supersaturation at the absorptive site, e.g., the small intestine, increasing the amount of dissolved compound available for absorption. However, due to the stochastic nature of nucleation, supersaturating drug delivery systems may lead to inter- and intrapersonal variability. The ability to define a feasible range with respect to the supersaturation level is a crucial factor for a successful formulation. Therefore, an in vitro method is needed, from where the ability of a compound to supersaturate can be defined in a reproducible way. Hence, this study investigates the reproducibility of an in vitro small scale standardized supersaturation and precipitation method (SSPM). First an intralaboratory reproducibility study of felodipine was conducted, after which seven partners contributed with data for three model compounds; aprepitant, felodipine, and fenofibrate, to determine the interlaboratory reproducibility of the SSPM. The first part of the SSPM determines the apparent degrees of supersaturation (aDS) to investigate for each compound. Each partner independently determined the maximum possible aDS and induced 100, 87.5, 75, and 50% of their determined maximum possible aDS in the SSPM. The concentration-time profile of the supersaturation and following precipitation was obtained in order to determine the induction time (tind) for detectable precipitation. The data showed that the absolute values of tind and aDS were not directly comparable between partners, however, upon linearization of the data a reproducible rank ordering of the three model compounds was obtained based on the beta-value, which was defined as the slope of the ln(tind) versus ln(aDS)-2 plot. Linear regression of this plot showed that aprepitant had the highest beta-value, 15.1, while felodipine and fenofibrate had comparable beta-values, 4.0 and 4.3, respectively. Of the five partners contributing with full data sets, 80% could obtain the same rank order for the three model compounds using the SSPM (aprepitant > felodipine ~ fenofibrate). The alpha-value is dependent on the experimental setup and can be used as a parameter to evaluate the uniformity of the data set. This study indicated that the SSPM was able to obtain the same rank order of the beta-value between partners and, thus, that the SSPM may be used to classify compounds depending on their supersaturation propensity. PMID- 29043813 TI - Catalyst Selection Facilitates the Use of Heterocyclic Sulfinates as General Nucleophilic Coupling Partners in Palladium-Catalyzed Coupling Reactions. AB - A range of 5- and 6-membered heterocycle-derived sulfinates are shown to be effective nucleophilic coupling partners with aryl chlorides and bromides using Pd(0) catalysis. The use of optimal reaction conditions, specifically incorporating a P(t-Bu)2Me-derived Pd catalyst, allowed reactions to be performed at moderate temperatures and enabled the inclusion of a variety of sensitive functional groups. Challenging heterocyclic sulfinates, including pyrazine, pyridazine, pyrimidine, pyrazole, and imidazole, were all shown to perform well. PMID- 29043812 TI - Amphiphilic Modulation of Glycosylated Antitumor Ether Lipids Results in a Potent Triamino Scaffold against Epithelial Cancer Cell Lines and BT474 Cancer Stem Cells. AB - The problems of resistance to apoptosis-inducing drugs, recurrence, and metastases that have bedeviled cancer treatment have been attributed to the presence of cancer stem cells (CSCs) in tumors, and there is currently no clinically indicated drug for their eradication. We previously reported that glycosylated antitumor ether lipids (GAELs) display potent activity against CSCs. Here, we show that by carefully modulating the amphiphilic nature of a monoamine based GAEL, we can generate a potent triamino scaffold that is active against a panel of hard-to-kill epithelial cancer cell lines (including triple-negative breast) and BT474 CSCs. The most active compound of this set, which acts via a nonmembranolytic, nonapoptotic caspase-independent mechanism, is more effective than cisplatin and doxorubicin against these cell lines and more potent than salinomycin against BT474 CSCs. Understanding the combination of factors crucial for the enhanced cytotoxicity of GAELs opens new avenues to develop potent compounds against drug-resistant cancer cells and CSCs. PMID- 29043814 TI - Boronic Acid Accelerated Three-Component Reaction for the Synthesis of alpha Sulfanyl-Substituted Indole-3-acetic Acids. AB - Boronic acid was used to accelerate a three-component reaction of indoles, thiols, and glyoxylic acids for the synthesis of alpha-sulfanyl-substituted indole-3-acetic acids. Boronic acid catalysis to activate the alpha-hydroxy group in alpha-hydroxycarboxylic acid intermediates and intramolecular assistance by free carboxylic acid were the keys to accelerating the product formation. PMID- 29043815 TI - Graphene as Barrier to Prevent Volume Increment of Air Bubbles over Silicone Polymer in Aqueous Environment. AB - The interaction of air bubbles with surfaces immersed in water is of fundamental importance in many fields of application ranging from energy to biology. However, many aspects of this topic such as the stability of surfaces in contact with bubbles remain unexplored. For this reason, in this work, we investigate the interaction of air bubbles with different kinds of dispersive surfaces immersed in water. The surfaces studied were polydimethylsiloxane (PDMS), graphite, and single layer graphene/PDMS composite. X-ray photoelectron spectroscopy (XPS) analysis allows determining the elemental surface composition, while Raman spectroscopy was used to assess the effectiveness of graphene monolayer transfer on PDMS. Atomic force microscopy (AFM) was used to study the surface modification of samples immersed in water. The surface wettability has been investigated by contact angle measurements, and the stability of the gas bubbles was determined by captive contact angle (CCA) measurements. CCA measurements show that the air bubble on graphite surface exhibits a stable behavior while, surprisingly, the volume of the air bubble on PDMS increases as a function of immersion time (bubble dynamic evolution). Indeed, the air bubble volume on the PDMS rises by increasing immersion time in water. The experimental results indicate that the dynamic evolution of air bubble in contact with PDMS is related to the rearrangement of surface polymer chains via the migration of the polar groups. On the contrary, when a graphene monolayer is present on PDMS, it acts as an absolute barrier suppressing the dynamic evolution of the bubble and preserving the optical transparency of PDMS. PMID- 29043816 TI - Axial Confocal Tomography of Capillary-Contained Colloidal Structures. AB - Confocal microscopy is widely used for three-dimensional (3D) sample reconstructions. Arguably, the most significant challenge in such reconstructions is posed by the resolution along the optical axis being significantly lower than in the lateral directions. In addition, the imaging rate is lower along the optical axis in most confocal architectures, prohibiting reliable 3D reconstruction of dynamic samples. Here, we demonstrate a very simple, cheap, and generic method of multiangle microscopy, allowing high-resolution high-rate confocal slice collection to be carried out with capillary-contained colloidal samples in a wide range of slice orientations. This method, realizable with any common confocal architecture and recently implemented with macroscopic specimens enclosed in rotatable cylindrical capillaries, allows 3D reconstructions of colloidal structures to be verified by direct experiments and provides a solid testing ground for complex reconstruction algorithms. In this paper, we focus on the implementation of this method for dense nonrotatable colloidal samples, contained in complex-shaped capillaries. Additionally, we discuss strategies to minimize potential pitfalls of this method, such as the artificial appearance of chain-like particle structures. PMID- 29043817 TI - Iridium/Bipyridine-Catalyzed ortho-Selective C-H Borylation of Phenol and Aniline Derivatives. AB - An iridium-catalyzed ortho-selective C-H borylation of phenol and aniline derivatives has been successfully developed. Iridium/bipyridine-catalyzed C-H borylation generally occurred at the meta- and para-positions of aromatic substrates. Introduction of an electron-withdrawing substituent on the bipyridine type ligand and a methylthiomethyl group on the hydroxy and amino groups of the phenol and aniline substrates, however, dramatically altered the regioselectivity, affording exclusively ortho-borylated products. The reaction proceeded in good to excellent yields with good functional group tolerance. C-H borylation was applied to the synthesis of a calcium receptor modulator. PMID- 29043818 TI - Toward the Elucidation of the Competing Role of Evaporation and Thermal Decomposition in Ionic Liquids: A Multitechnique Study of the Vaporization Behavior of 1-Butyl-3-methylimidazolium Hexafluorophosphate under Effusion Conditions. AB - The evaporation/decomposition behavior of the imidazolium ionic liquid 1-butyl-3 methylimidazolium hexafluorophosphate (BMImPF6) was investigated in the overall temperature range 425-551 K by means of the molecular-effusion-based techniques Knudsen effusion mass loss (KEML) and Knudsen effusion mass spectrometry (KEMS), using effusion orifices of different size (from 0.2 to 3 mm in diameter). Specific effusion fluxes measured by KEML were found to depend markedly on the orifice size, suggesting the occurrence of a kinetically delayed evaporation/decomposition process. KEMS experiments revealed that other species are present in the vapor phase besides the intact ion pair BMImPF6(g) produced by the simple evaporation BMImPF6(l) = BMImPF6(g), with relative abundances depending on the orifice size-the larger the orifice, the larger the contribution of the BMImPF6(g) species. By combining KEML and KEMS results, the conclusion is drawn that in the investigated temperature range, when small effusion orifices are used, a significant part of the mass loss/volatility of BMImPF6 is due to molecular products formed by decomposition/dissociation processes rather than to evaporated intact ion pairs. Additional experiments performed by nonisothermal thermogravimetry-differential thermal analysis (TG-DTA) further support the evidence of simultaneous evaporation/decomposition, although the conventional decomposition temperature derived from TG curves is much higher than the temperatures covered in effusion experiments. Partial pressures of the BMImPF6(g) species were derived from KEMS spectra and analyzed by second- and third-law methods giving a value of DeltaevapH298K degrees = 145.3 +/- 2.9 kJ.mol-1 for the standard evaporation enthalpy of BMImPF6. A comparison is done with the behavior of the 1-butyl-3-methylimidazolium bis(trifluoromethyl)sulfonylimide (BMImNTf2) ionic liquid. PMID- 29043819 TI - Silver-Catalyzed Minisci Reactions Using Selectfluor as a Mild Oxidant. AB - A new method for silver-catalyzed Minisci reactions using Selectfluor as a mild oxidant is reported. Heteroarenes and quinones both participate in radical C-H alkylation and arylation from a variety of carboxylic and boronic acid radical precursors. Several oxidatively sensitive and highly reactive radical species are successful, providing structures that are challenging to access by other means. PMID- 29043820 TI - Stable Isotope-Assisted Metabolic Profiling Reveals Growth Mode Dependent Differential Metabolism and Multiple Catabolic Pathways of l-Phenylalanine in Rubrivivax benzoatilyticus JA2. AB - Anoxygenic phototrophic bacteria are metabolically versatile and survive under different growth modes using diverse organic compounds, yet their metabolic diversity is largely unexplored. In the present study, we employed stable-isotope assisted metabolic profiling to unravel the l-phenylalanine catabolism in Rubrivivax benzoatilyticus JA2 under varying growth modes. Strain JA2 grows under anaerobic and aerobic conditions by utilizing l-phenylalanine as a nitrogen source. Furthermore, ring-labeled 13C6-phenylalanine feeding followed by liquid chromatography-mass spectrometry exometabolite profiling revealed 60 labeled metabolic features (M + 6, M + 12, and M + 18) derived solely from l phenylalanine, of which 11 were identified, 7 putatively identified, and 42 unidentified under anaerobic and aerobic conditions. However, labeled metabolites were significantly higher in aerobic compared to anaerobic conditions. Furthermore, detected metabolites and enzyme activities indicated multiple l phenylalanine catabolic routes mainly Ehrlich, homogentisate-dependent melanin, benzenoid, and unidentified pathways operating under anaerobic and aerobic conditions in strain JA2. Interestingly, the study indicated l-phenylalanine dependent and independent benzenoid biosynthesis in strain JA2 and a differential flux of l-phenylalanine to Ehrlich and benzenoid pathways under anaerobic and aerobic conditions. Additionally, unidentified labeled metabolites strongly suggest the presence of unknown phenylalanine catabolic routes in strain JA2. Overall, the study uncovered the l-phenylalanine catabolic diversity in strain JA2 and demonstrated the potential of stable isotope-assisted metabolomics in unraveling the hidden metabolic repertoire. PMID- 29043821 TI - In Situ Generation of a Regio- and Diastereoselective Hydroaminoalkylation Catalyst Using Commercially Available Starting Materials. AB - The design of an easy to use catalyst system for the regio- and diastereoselective intermolecular hydroaminoalkylation of alkenes with secondary amines is reported. The method utilizes commercially available ligands and tantalum starting materials, and does not require the isolation of air and water sensitive organometallic complexes. The in situ prepared catalyst is active toward a variety of secondary amine substrates, including those with ethyl substituents which yield alpha- and beta-alkylated amines as a single diastereomer. This catalytic transformation can be used to prepare amines containing functionality that promotes ring closure to achieve the diastereoselective synthesis of di- and trialkylated N-heterocycles. PMID- 29043822 TI - Palladium-Catalyzed Asymmetric Allylic Alkylation of Alkyl-Substituted Allyl Reagents with Acyclic Amides. AB - A wide range of alkyl-substituted allyl reagents, as well as nonstabilized carbon nucleophiles, was successfully used for the first time in the palladium-catalyzed asymmetric allylic alkylation reaction, affording the corresponding allylic alkylated products in high yields with high enantioselectivities. The usefulness of the protocol has been demonstrated by the enantioselective synthesis of an important chiral building block and enantiomer of Dubiusamine A. PMID- 29043824 TI - Ferrofluid-Based Droplet Interface Bilayer Networks. AB - Droplet interface bilayer (DIB) networks allow for the construction of stimuli responsive, membrane-based materials. Traditionally used for studying cellular transport phenomena, the DIB technique has proven its practicality when creating structured droplet networks. These structures consist of aqueous compartments capable of exchanging their contents across membranous barriers in a regulated fashion via embedded biomolecules, thus approximating the activity of natural cellular systems. However, lipid bilayer networks are often static and incapable of any reconfiguration in their architecture. In this study, we investigate the incorporation of a magnetic fluid or ferrofluid within the droplet phases for the creation of magnetically responsive DIB arrays. The impact of adding ferrofluid to the aqueous phases of the DIB networks is assessed by examining the bilayers' interfacial tensions, thickness, and channel activity. Once compatibility is established, potential applications of the ferrofluid-enabled DIBs are showcased by remotely modifying membrane qualities through magnetic fields. Ferrofluids do not significantly alter the bilayers' properties or functionality and can therefore be safely embedded within the DIB platform, allowing for remote manipulation of the interfacial bilayer properties. PMID- 29043825 TI - Unconventional Current Scaling and Edge Effects for Charge Transport through Molecular Clusters. AB - Metal-molecule-metal junctions are the key components of molecular electronics circuits. Gaining a microscopic understanding of their conducting properties is central to advancing the field. In the present contribution, we highlight the fundamental differences between single-molecule and ensemble junctions focusing on the fundamentals of transport through molecular clusters. In this way, we elucidate the collective behavior of parallel molecular wires, bridging the gap between single molecule and large-area monolayer electronics, where even in the latter case transport is usually dominated by finite-size islands. On the basis of first-principles charge-transport simulations, we explain why the scaling of the conductivity of a junction has to be distinctly nonlinear in the number of molecules it contains. Moreover, transport through molecular clusters is found to be highly inhomogeneous with pronounced edge effects determined by molecules in locally different electrostatic environments. These effects are most pronounced for comparably small clusters, but electrostatic considerations show that they prevail also for more extended systems. PMID- 29043826 TI - ABO serology in a case of persistent weak A in a recipient following a group O matched unrelated bone marrow transplant. AB - CONCLUSIONS: HLA-matched hematopoietic stem cell transplantation (HSCT) from red blood cell (RBC)-incompatible donors is not uncommon. The engraftment process following ABO-incompatible allogeneic HSCT results in the transition from patient blood group to donor blood group in the recipient. In contrast, most non hematopoietic tissues retain expression of the patient's original blood group for life, and these antigens may adsorb from the plasma onto the donor-derived RBCs. Correct serologic interpretation of the ABO blood group during this engraftment process can be difficult. We present the serologic findings of a 15-year-old girl of Maori descent, who was diagnosed with acute myeloid leukemia and transplanted with an HLA-matched unrelated group O, D+ bone marrow. Despite engraftment, her RBCs showed persistence of weak A. This case report showcases the importance of awareness and correct serologic interpretation of weak persistence of recipient ABH substance on the patient's RBCs for clinical decision-making, blood component support, and patient wellbeing. PMID- 29043827 TI - Stability guidelines for dithiothreitol-treated red blood cell reagents used for antibody detection methods in patients treated with daratumumab. AB - CONCLUSIONS: Daratumumab (DARA), a drug used to treat patients with multiple myeloma, causes interference in pre-transfusion testing. Samples from patients receiving DARA exhibit panreactivity in antibody detection and identification tests with red blood cells (RBCs). Many hospitals are sending these samples to reference laboratories. Dithiothreitol (DTT), a sulfhydryl chemical treatment of RBCs, negates this reactivity. This study investigated the stability of the antigens on DTT-treated RBCs to determine if large quantities of RBCs could be treated at one time, stored, and used for testing at a later time. Panel cells were treated with DTT and then stored as three sets. Set 1 DTT-treated RBCs were stored in Alsever's solution at 2 degrees C to 8 degrees C, washed daily, and suspended in pH 7.3 phosphate-buffered saline (PBS) prior to antigen typing. Set 2 DTT-treated RBCs were stored in pH 7.3 PBS. Set 3 DTT-treated RBCs were stored in Alsever's solution. Sets 2 and 3 were inspected daily for 14 days for observation of hemolysis. In Set 1, all antigen reactivity remained at >=2+ with both single- and double-dose cells for 14 days. The Rh antigens gave stronger reactions longer, compared with those tested in the Duffy, Kidd, and MNS blood group systems. Sets 2 and 3 were monitored for hemolysis. On day 3, Set 2 began displaying hemolysis, with complete hemolysis by day 8. Set 3 did not display hemolysis in 14 days. In conclusion, a large volume of RBCs can be treated with DTT and stored in Alsever's solution for use without deterioration of the RBC antigens, saving institutions tech time, resources, and money. PMID- 29043828 TI - A LU:-16 individual with antibodies. AB - CONCLUSIONS: Antibodies against Lutheran blood group antigens have been observed during first-time pregnancy. Samples from a woman of African descent were tested in our immunohematology laboratory on several occasions since 2001. Her samples were phenotyped as Lu(a+b-), and anti-Lub was suspected but not identified. She was asked to make autologous donations in preparation for her delivery, which she did. In 2010, two antibodies were identified: anti-Lea and -Lub. Six years later, a third investigation was requested. This time, an antibody directed at a high prevalence Lutheran antigen was found in addition to the anti-Lea and -Lub previously observed. Her serum was compatible with three out of five Lu(a-b-) reagent red blood cells (RBCs). One of the incompatible Lu(a-b-) reagent RBCs was known to be In(Lu) (KLF1 mutation). The genetic background of the other reagent RBC was unknown. The LU cDNA sequence analysis revealed the presence of the c.230G>A (Lua), c.679C>T (LU:-16), and a silent polymorphism c.1227G>T. Anti-Lu16 was highly suspected. This would be the fifth case of LU:-16 with antibodies reported, all within women of African heritage with the Lu(a+b-) phenotype. Hemolytic disease of the fetus and newborn was not noted in these cases. PMID- 29043829 TI - Postpartum acute hemolytic transfusion reactions associated with anti-Lea in two pregnancies complicated by preeclampsia. AB - CONCLUSIONS: Lewis blood group antibodies, which are mostly naturally occurring and considered clinically insignificant, have rarely been documented as a cause of acute hemolytic transfusion reactions (AHTRs). This report presents two cases of AHTRs caused by anti-Lea occurring in postpartum black females (one group B, one group AB) whose pregnancies were complicated by preeclampsia. Neither anti Lea was detected by automated solid-phase red cell adherence technology in pre transfusion testing. Therefore, red blood cell units, compatible by electronic crossmatch, were issued and transfused. The subsequent transfusion reactions were characterized by acute intravascular hemolysis, evidenced by both clinical and laboratory criteria. These two cases demonstrate that, even when least anticipated, hemolytic transfusion reactions may occur. As expected, neither live born neonate was affected by hemolytic disease of the fetus and newborn. Because both transfusion reactions occurred in non-group O, postpartum black females with pregnancies complicated by preeclampsia, possible links between in vivo hemolytic anti-Lea, non-group O pregnant black females, and preeclampsia may require additional investigation. PMID- 29043830 TI - Red blood cell phenotype prevalence in blood donors who self-identify as Hispanic. AB - CONCLUSIONS: Molecular genotyping platforms provide a quick, high-throughput method for identifying red blood cell units for patients on extended phenotype matching protocols, such as those with sickle cell disease or thalassemia. Most of the antigen prevalence data reported are for non-Hispanic populations. Therefore, this study sought to determine the phenotype prevalence in a single blood center's Hispanic population and to compare those results with previously reported rates in non-Hispanic donor populations. We performed a retrospective review of all serologic and molecular typing from donors who self-reported as Hispanic. The phenotype prevalence was reported and compared with rates from other racial/ethnic groups. A total of 1127 donors who selfidentified as Hispanic were screened by serologic methods for Rh and Kell antigens, and 326 were subsequently selected for molecular typing. The most prevalent probable Rh phenotypes were R1r (26.6%), R1R2 (21.5%), and R1R1 (20.7%); rr was found in 7.8 percent of donors tested. The percentage of K+ donors in this population was 2.8 percent. The most prevalent Duffy phenotypes were Fy(a+b+) (35.9%), Fy(a+b-) (35.6%), and Fy(a-b+) (27%). Of the donors studied, 15.3 percent had an FY GATA mutation. Only 1.5 percent of the donors were Fy(a-b-). The Jk(a+b+) phenotype was found in nearly half of the population. M+N+S+s+ was the most prevalent MNS phenotype from that group, constituting 22.4 percent. A total of 95.7 percent of the donors were Lu(a-b+), and Di(a-b+) was observed in 94.4 percent. The most prevalent Dombrock phenotype was Do(a+b+), constituting 46.9 percent, followed closely by Do(a-b+) at 40.5 percent. Hispanic donor antigen prevalence is distinctly different from other racial/ethnic groups and should be considered when attempting to find extended matched units for these patients. PMID- 29043831 TI - DEL phenotype. AB - CONCLUSIONS: DEL red blood cells (RBCs) type as D- by routine serologic methods and are transfused routinely, without being identified as expressing a very weak D antigen, to D- recipients. DEL RBCs are detected only by adsorption and elution of anti-D or by molecular methods. Most DEL phenotypes have been reported in population studies conducted in East Asia, although DEL phenotypes have been detected also among Caucasian individuals. Approximately 98 percent of DEL phenotypes in East Asians are associated with the RHD*DEL1 or RHD*01EL.01 allele. The prevalence of DEL phenotypes has been reported among D- Han Chinese (30%), Japanese (28%), and Korean (17%) populations. The prevalence of DEL phenotypes is significantly lower among D- Caucasian populations (0.1%). Among the 3-5 percent of African individuals who are D-, there are no reports of the DEL phenotype. Case reports from East Asia indicate that transfusion of DEL RBCs to D- recipients has been associated with D alloimmunization. East Asian immigrants constitute 2.1 percent of the 318.9 million persons residing in the United States, and an estimated 2.8 percent are blood donors. Using these statistics, we estimate that 68-683 units of DEL RBCs from donors of East Asian ancestry are transfused as D- annually in the United States. Given the reports from East Asia of D alloimmunization attributed to transfusion of DEL RBCs, one would expect an occasional report of D alloimmunization in the United States following transfusion of DEL RBCs to a D- recipient. If such cases do occur, the most likely reason that they are not detected is the absence of active post transfusion monitoring for formation of anti-D. PMID- 29043832 TI - High-Frequency Oscillation for Adult Patients with Acute Respiratory Distress Syndrome. A Systematic Review and Meta-Analysis. AB - RATIONALE: By minimizing tidal lung strain and maintaining alveolar recruitment, high-frequency oscillatory ventilation (HFOV) may protect against ventilator induced lung injury. OBJECTIVES: To summarize the current evidence in support of the use of HFOV in adult patients with acute respiratory distress syndrome. METHODS: We conducted a systematic review and meta-analysis of randomized trials comparing mortality rates with the use of HFOV versus conventional mechanical ventilation for adult patients with acute respiratory distress syndrome. Eligible trials were identified from previously published systematic reviews and an updated literature search. Data on 28-day mortality, oxygenation, adverse events, and use of rescue therapies were collected; effects were pooled using random effects models weighted by inverse variance. Strength of evidence was assessed using Grading of Recommendations Assessment, Development, and Evaluation methodology. RESULTS: Six trials were eligible for inclusion (total n = 1,715 patients). Four trials mandated lung-protective ventilation in the control group and one trial applied a higher positive end-expiratory pressure (PEEP) ventilation strategy in the control group. None of the trials were judged to be at high risk of bias, though all were unblinded. In trials that did not systematically employ any cointerventions with HFOV and that targeted low tidal volumes in the patients randomized to conventional ventilation (primary analysis), HFOV had no significant effect on mortality (three trials; risk ratio [RR], 1.14; 95% confidence interval [CI], 0.88 to 1.48; evidence grade = high). Pooled analysis of all six trials also did not suggest a significant mortality reduction (RR, 0.94; 95% CI, 0.71 to 1.24; evidence grade = low). The single trial that employed a conventional ventilation strategy with both lower tidal volumes and higher PEEP as control reported higher mortality in patients receiving HFOV (RR, 1.41; 95% CI, 1.12 to 1.79). HFOV was not associated with improved oxygenation after 24 hours (five trials; mean increase of 10 mm Hg; 95% CI, -16 to 37 mm Hg). Rates of barotrauma were not different between HFOV and conventional ventilation, although significant benefit or harm could not be excluded (RR, 1.15; 95% CI, 0.61 to 2.17). CONCLUSIONS: Published randomized trials suggest that HFOV is not associated with a mortality benefit, and may even be harmful in comparison to ventilation with low tidal volumes and higher levels of PEEP. PMID- 29043833 TI - The Fetus or the Infant: Which Is the Father of the Man? (Both). PMID- 29043834 TI - Higher PEEP versus Lower PEEP Strategies for Patients with Acute Respiratory Distress Syndrome. A Systematic Review and Meta-Analysis. AB - RATIONALE: Higher positive end-expiratory pressure (PEEP) levels may reduce atelectrauma, but increase over-distention lung injury. Whether higher PEEP improves clinical outcomes among patients with acute respiratory distress syndrome (ARDS) is unclear. OBJECTIVES: To compare clinical outcomes of mechanical ventilation strategies using higher PEEP levels versus lower PEEP strategies in patients with ARDS. METHODS: We performed a systematic review and meta-analysis of clinical trials investigating mechanical ventilation strategies using higher versus lower PEEP levels. We used random effects models to evaluate the effect of higher PEEP on 28-day mortality, organ failure, ventilator-free days, barotrauma, oxygenation, and ventilation. RESULTS: We identified eight randomized trials comparing higher versus lower PEEP strategies, enrolling 2,728 patients with ARDS. Patients were 55 (+/-16) (mean +/- SD) years old and 61% were men. Mean PEEP in the higher PEEP groups was 15.1 (+/-3.6) cm H2O as compared with 9.1 (+/-2.7) cm H2O in the lower PEEP groups. Primary analysis excluding two trials that did not use lower Vt ventilation in the lower PEEP control groups did not demonstrate significantly reduced mortality for patients receiving higher PEEP as compared with a lower PEEP (six trials; 2,580 patients; relative risk, 0.91; 95% confidence interval [CI] = 0.80-1.03). A higher PEEP strategy also did not significantly decrease barotrauma, new organ failure, or ventilator-free days when compared with a lower PEEP strategy (moderate-level evidence). Quality of evidence for primary analyses was downgraded for precision, as CIs of outcomes included estimates that would result in divergent recommendations for use of higher PEEP. Secondary analysis, including trials that did not use low Vt in low PEEP control groups, showed significant mortality reduction for high-PEEP strategies (eight trials; 2,728 patients; relative risk, 0.84; 95% CI = 0.71 0.99), with greater mortality benefit observed for high PEEP in trials that did not use lower Vts in the low-PEEP control group (P = 0.02). Analyses stratifying by use of recruitment maneuvers (P for interaction = 0.69), or use of physiological targets to set PEEP versus PEEP/FiO2 tables (P for interaction = 0.13), did not show significant effect modification. CONCLUSIONS: Use of higher PEEP is unlikely to improve clinical outcomes among unselected patients with ARDS. PMID- 29043835 TI - We Have to Learn to Do without Knowing Enough: Antieosinophilic Treatments for Severe Asthma. PMID- 29043836 TI - Amphetamine Derivatives and the Risk of Pulmonary Arterial Hypertension. A New Chapter of the Story. PMID- 29043837 TI - Lung Recruitment Maneuvers for Adult Patients with Acute Respiratory Distress Syndrome. A Systematic Review and Meta-Analysis. AB - RATIONALE: In patients with acute respiratory distress syndrome (ARDS), lung recruitment maneuvers (LRMs) may prevent ventilator-induced lung injury and improve survival. OBJECTIVES: To summarize the current evidence in support of the use of LRMs in adult patients with ARDS and to inform the recently published American Thoracic Society/European Society of Intensive Care Medicine/Society of Critical Care Medicine clinical practice guideline on mechanical ventilation in ARDS. METHODS: We conducted a systematic review and meta-analysis of randomized trials comparing mechanical ventilation strategies with and without LRMs. Eligible trials were identified from among previously published systematic reviews and an updated literature search. Data on 28-day mortality, oxygenation, adverse events, and use of rescue therapy were collected, and results were pooled using random effects models weighted by inverse variance. Strength of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation methodology. RESULTS: We screened 430 citations and previous systematic reviews and found six trials eligible for inclusion (n = 1,423 patients in total). The type of LRM varied widely between trials, and five of the trials involved a cointervention with a higher positive end-expiratory pressure (PEEP) ventilation strategy. Risk of bias was deemed high in one trial. In the primary analysis, the only trial without a cointervention showed that LRMs were associated with reduced mortality (one trial; risk ratio [RR], 0.62; 95% confidence interval [CI], 0.39-0.98; evidence grade = low). Meta-analysis of all six trials also suggested a significant mortality reduction (six trials; RR, 0.81; 95% CI, 0.69-0.95; evidence grade = moderate), and the use of a higher PEEP cointervention did not significantly modify the mortality effect (P = 0.27 for heterogeneity). LRMs were also associated with improved oxygenation after 24 hours (six trials; mean increase, 52 mm Hg; 95% CI, 23-81 mm Hg) and less frequent requirement for rescue therapy (three trials; RR, 0.65; 95% CI, 0.45 0.94). LRMs were not associated with an increased rate of barotrauma (four trials; RR, 0.84; 95% CI, 0.46-1.55). The rate of hemodynamic compromise was not significantly increased with LRMs (three trials; RR, 1.30; 95% CI, 0.92-1.78). CONCLUSIONS: Randomized trials suggest that LRMs in combination with a higher PEEP ventilation strategy reduce mortality, but confidence in this finding is limited. Further trials are required to confirm benefit from LRMs in adults with ARDS. PMID- 29043838 TI - Blink: Characteristics, Controls, and Relation to Dry Eyes. AB - Blink is a complex phenomenon that is profoundly affected by diverse endogenous and exogenous stimuli. It has been studied in the context of cognition, emotional, and psychological states, as an indicator of fatigue and sleepiness, particularly in the automobile and transportation industry, in visual tasking, and finally, as it relates to tear film stability and ocular surface health. The fact that it is highly variable and has input from so many sources makes it very difficult to study. In the present review, the behavior of blink in many of these systems is discussed, ultimately returning in each instance to a discussion of how these factors affect blink in the context of dry eyes. Blink is important to ocular surface health and to an individual's optimal functioning and quality of life. Disturbances in blink, as cause or effect, result in a breakdown of tear film stability, optical clarity, and visual function. PMID- 29043839 TI - Less Is More for Steroids in Severe Sepsis and Oxygen for the Critically Ill, but Maybe Not When Searching for Pulmonary Embolism in Syncope. PMID- 29043840 TI - Comparison of two methods based on photoplethysmography for the diagnosis of peripheral arterial disease. AB - AIM: To examine the interchangeability of two methods for distal pressure measurement based on photoplethysmography using a truncated or full display of the arterial inflow curve, respectively. METHODS: Toe and ankle pressures were obtained from 69 patients suspected of peripheral arterial disease (PAD). Observer reproducibility of the curve readings was examined by blinded reassessment of the pressure curves in a randomly selected subgroup (60 limbs). RESULTS: There were no significant differences in mean pressures between the two methods (p for all > .455). The limits of agreement for the differences were 15.0-15.4 mmHg for right toe pressures, -16.3-16.2 mmHg for left toe pressures, 14.2-15.7 mmHg for right ankle pressures, and -18.3-17.7 mmHg for left ankle pressures. Correlation analysis revealed intraclass correlation coefficients >=0.960 for all measuring sites. Cohen's Kappa showed excellent agreement in diagnostic classification, with kappa = 0.930 for the diagnosis of PAD and perfect agreement in the diagnosis of critical limb ischemia (kappa = 1.000). The analysis of intra-observer variation for curve reading showed limits of agreement of -3.9-4.0 for toe pressures and -7.6-7.7 for ankle pressures for the method involving truncated display and -3.1-3.2 for toe pressures and -6.3-8.6 for ankle pressures for the method involving full display of the signal. CONCLUSION: The present study shows minimal differences in diagnostic classification, as well as in ankle and toe pressures, between the full display and the truncated display of the photoplethysmographic pulse signal. Furthermore, the inter-observer variation was low for both of the photoplethysmographic methods investigated. PMID- 29043841 TI - Tactics Young Women Use to Resist Condom Use When a Partner Wants to Use a Condom. AB - Although there is a growing literature on men's condom use resistance (CUR) tactics (e.g., direct requests, deception), little research exists on women's CUR tactics. This study investigated young women's (ages 18 to 21) self-reported use of CUR tactics since age 14 and related individual difference factors. Participants included 235 sexually active heterosexual women from a nationwide convenience survey sample who completed a newly adapted women's version of the Condom Use Resistance Survey. Consistent with the limited previous research, women were most likely to use risk-level reassurance (37.9%) and seduction (33.2%) tactics. A higher frequency and quantity of alcohol consumption, particularly prior to sex, lower perceived risk of sexually transmitted infections (STIs), and a history of STI diagnosis were associated with having previously used a greater number and variety of CUR tactics. This highlights the need for CUR prevention and intervention programming for women. Future research should specifically examine women's rationale for using CUR tactics and utilize longitudinal and experimental methods to further elucidate directional and causal relationships among individual-level risk factors, CUR, and negative sexual health outcomes. PMID- 29043842 TI - The Protective and Immunomodulatory Effects of Fucoidan Against 7,12-Dimethyl benz[a]anthracene-Induced Experimental Mammary Carcinogenesis Through the PD1/PDL1 Signaling Pathway in Rats. AB - Fucoidan is a sulfated polysaccharide that is extracted from brown algae seaweed. This study was designed to evaluate the protective and immunomodulatory effects of dietary fucoidan on 7,12-dimethyl benz[a]anthracene (DMBA)-induced experimental mammary carcinogenesis in rats. Sixty Sprague-Dawley rats were randomly assigned to four equal groups: the control group (control group), the cancer model group (model group), and the F1 and F2 groups, which were fed fucoidan at concentrations of 200 and 400 mg/kg.body weight, respectively. We found that fucoidan treatment decreased the tumor incidence and mean tumor weight and prolonged the tumor latency. Flow cytometric analyses revealed that the number of blood natural killer cells was higher after fucoidan treatment and that the proportions of CD4 and CD8 T cells were also increased. The serum levels of interleukin (IL)-6, IL-12p40, and interferon (IFN)-gamma were higher in the rats treated with fucoidan compared to those of model rats. Moreover, the percentage of CD3+ Foxp3+ regulatory T cells in the blood and the levels of IL-10 and transforming growth factor beta in the serum were lower in the rats treated with fucoidan. Furthermore, fucoidan treatment decreased the expression of Foxp3 and programmed cell death 1 ligand 1 (PDL1) in tumor tissues. The levels of p phosphatidyl inositol kinase 3 and p-AKT in tumor tissues were also lower than those of model rats. These results suggest that a fucoidan-supplemented diet can inhibit DMBA-induced tumors in rats. This study provides experimental evidence toward elucidating the immune enhancement induced by fucoidan through the programmed cell death 1/PDL1 signaling pathway. The immunomodulatory effect is one of the possible mechanisms of the protective effect of fucoidan against mammary carcinogenesis. PMID- 29043843 TI - Parenting a Child With Complex Health Care Needs: A Stressful and Imposed "Clinical Career". PMID- 29043846 TI - "Gay Equals White"? Racial, Ethnic, and Sexual Identities and Attitudes Toward LGBT Individuals Among College Students at a Bible Belt University. AB - While past research has certainly explored a variety of correlates of attitudes toward lesbian, gay, bisexual, and transgender (LGBT) individuals, the current study is among the first in an emerging line of inquiry that examines attitudes toward each of these groups separately utilizing an intersectional framework with special attention to racial, ethnic, and sexual identities. Using a college sample of students from the Bible Belt of the United States (N = 1,940), I investigated the roles of racial and ethnic identities (Caucasian/White, African American/Black, Asian/Pacific Islander, Native American/Alaskan Native, other race, and Hispanic/Latinx), religiosity, patriarchal gender norms, parental perspectives, and the intersections among these identities and experiences as they relate to attitudes toward LGBT individuals among heterosexual (n = 1,551) and LGB respondents (n = 389). This moves beyond explorations of White heterosexual people's attitudes about "homosexuals" (i.e., away from a focus only on gayness and Whiteness) and expands to include non-White LGB people's LGBT attitudes. Overall, results indicate that racial, ethnic, and sexual identities play a significant role in southern college students' LGBT attitudes, and these patterns are further complicated by interacting cultural experiences with religiosity, patriarchy, and family dynamics. Campus policy and program implications are provided. PMID- 29043849 TI - Absorption of ibuprofen orodispersible tablets in early postoperative phase - a pharmacokinetic study. AB - OBJECTIVE: Patient-controlled oral analgesia has gained popularity in postoperative pain management. Anesthesia and surgery delay gastrointestinal tract function and this may therefore decrease bioavailability of drugs taken by mouth. To hasten absorption, an orodispersible ibuprofen tablet has been developed. In this study, we evaluated the pharmacokinetics and feasibility of orodispersible ibuprofen tablets in spine surgery patients. METHODS: The study design was a prospective clinical trial where each patient served as her/his own control. Fifteen patients aged 19-75 years were given two orodispersible ibuprofen 200 mg tablets the day before surgery and two more tablets immediately after surgery. Blood samples for ibuprofen concentrations were taken at intervals for 6 hours following pre- and postsurgical administration of ibuprofen. RESULTS: The mean preoperative area under time-concentration curve for ibuprofen (AUC0 360) was 4806 (SD 1104) min.mg/L, and after surgery it was 2141 (583) min.mg/L (mean difference 2664, 95% CI for difference 2003 to 3325, p < .001). The mean of the maximum preoperative plasma concentration of ibuprofen was three times higher, 26.7 (7.7) mg/L, than the postoperative value of 8.6 (2.1) mg/L (mean diff. 18.1, 95% CI 13.9 to 22.4, p < .001). Times to maximum concentration were similar pre- and postoperatively at 155 (58) minutes and 169 (113) minutes (p = .67). No serious or unexpected adverse events were recorded. CONCLUSIONS: While orodispersible ibuprofen tablets were feasible, ibuprofen absorption decreased immediately after surgery compared to the day before surgery. Thus, further studies are needed to establish the adequate initial postoperative dose. PMID- 29043847 TI - Smoking-Related Interstitial Fibrosis: Evidence of Radiologic Regression with Advancing Age and Smoking Cessation. AB - More data are needed regarding the radiology, co-morbidities and natural history of smoking-related interstitial fibrosis (SRIF), a common pathological finding, mainly described heretofore in association with lung cancer, where respiratory bronchiolitis (RB) usually co-exists. We prospectively acquired high resolution CT scan data (edge-enhancing lung reconstructions) to detect any radiologic interstitial lung abnormality (ILA) in individuals who ultimately underwent surgical lobectomy for lung cancer (n = 20), for radiologic/pathologic correlation. We also re-examined other smoking-related benign histologic cases: chronic obstructive pulmonary disease (COPD lung explants, n = 20), alpha 1 antitrypsin deficiency (A1AT, explanted lungs n = 20), combined pulmonary fibrosis and emphysema (CPFE, n = 8) and idiopathic pulmonary fibrosis (IPF, n = 10). Finally, we pooled our data with all peer-reviewed published data describing histologic SRIF of known ILA status. SRIF was observed in 40% of cancer lobectomies, mean (+/-SD) age 65.8 +/- 8.7 years, none of whom had ILA. SRIF was observed in other smoking-related benign diseases (COPD 35%, A1AT 20%, CPFE 25%, and IPF 10%). 71.4% of benign SRIF cases had no RB (nearly all ex-smokers) versus 0% of cancer-associated SRIF cases (P = 1.7 * 10-3). Pooled data showed that those SRIF subjects without ILA were 15.05 years older than those with ILA (95% confidence interval 8.99 to 21.11, P = 2.5 * 10-5) and more likely to be former smokers (P = 7.2 * 10-3). SRIF is frequently found without lung cancer, and mostly without RB in former smokers. SRIF is less likely to have ILA in older subjects and with smoking cessation, which could represent RB+/-SRIF regression. PMID- 29043848 TI - Lexical access in a bilingual speaker with dementia: Changes over time. AB - In this article, we explore the naming skills of a bilingual English-Norwegian speaker diagnosed with Primary Progressive Aphasia, in each of his languages across three different speech contexts: confrontation naming, semi-spontaneous narrative (picture description), and conversation, and at two points in time: 12 and 30 months post diagnosis, respectively. The results are discussed in light of two main theories of lexical retrieval in healthy, elderly speakers: the Transmission Deficit Hypothesis and the Inhibitory Deficit Theory. Our data show that, consistent with the participant's premorbid use of and proficiency in the two languages, his performance in his L2 is lower than in his L1, but this difference diminishes as the disease progresses. This is the case across the three speech contexts; however, the difference is smaller in the narrative task, where his performance is very low in both languages already at the first measurement point. Despite his word finding problems, he is able to take active part in conversation, particularly in his L1 and more so at the first measurement point. In addition to the task effect, we find effects of word class, frequency, and cognateness on his naming skills. His performance seems to support the Transmission Deficit Hypothesis. By combining different tools and methods of analysis, we get a more comprehensive picture of the impact of the dementia on the speaker's languages from an intra-individual as well as an inter-individual perspective, which may be useful in research as well as in clinical practice. PMID- 29043850 TI - Age-adjusted D-dimer cut-off in the diagnostic strategy for deep vein thrombosis: a systematic review. AB - BACKGROUND: Studies have indicated that use of an age-adjusted D-dimer cut-off value for patients above 50 years increases utility of the diagnostic strategy for pulmonary embolism. Evidence for the same approach regarding diagnosis of deep vein thrombosis (DVT) is, however, unclear. MATERIALS AND METHODS: A systematic literature review was conducted following the PRISMA Statement guideline to gather the existing knowledge on the use of an age-adjusted D-dimer cut-off in the diagnostic strategy for DVT. Studies were extracted from Medline and the Cochrane Library. The search period ended in November 2016. RESULTS: Out of 73 articles retrieved, only eight studies addressed DVT either specifically or along with PE. None of these were randomized controlled trials, but were either prospective studies of consecutive outpatients or retrospective studies. Despite differences in study design, DVT prevalence, and D-dimer assay used, all studies were in favour of the age-adjusted D-dimer cut-off with negative predictive values (NPV) ranging from 91.8-100% compared to 89.7-100% for the standard D dimer cut-off. All the studies concluded that use of an age-adjusted D-dimer cut off resulted in an improved utility, although the results due to heterogeneity in reporting did not allow a direct comparison. CONCLUSION: Use of an age-adjusted D dimer cut-off for patients above 50 years of age for ruling out DVT seems as safe as using a standard D-dimer cut-off. The recommended (and most used) adjustment is by the formula (patient's age *10) MUg/L. PMID- 29043851 TI - Antioxidants in the Treatment of Cancer. AB - Several clinical trials have produced conflicting results regarding the benefit of antioxidants in cancer therapy thus questioning the incorporation of these substances in standard treatment regimens. Vitamins E and C, selenium, carotenoids, lycopene, soy products, and green tea extract are a few substances with antioxidant properties that have been studied in detail. This article reviews the results generated over the last 20 years through in vitro and in vivo studies in various types of cancers and stages of cancer treatment. Despite the commercial popularity and the multitude of studies examining antioxidant therapy, the true role of antioxidants is yet to be determined, requiring further investigation into its propagative, causal, or protective nature. PMID- 29043852 TI - Beliefs About Others' Perceptions-Gender Typicality: Scale Development and Relationships to Gender Nonconformity, Sexual Orientation, and Well-Being. AB - The purpose of this study was to develop a measure of "other-perceived" gender typicality and test its relationship with gender nonconformity, sexual orientation, and psychological distress. Data on these variables were collected from 632 participants (142 heterosexual men, 77 gay men, 50 bisexual men, 174 heterosexual women, 85 lesbian women, and 104 bisexual women). We designed a Beliefs About Others' Perceptions-Gender Typicality (BOP-GT) scale on which participants reported how masculine or feminine they thought other people perceived their gendered behavior, interests, appearance, and activities. Factor analysis identified five factors: appearance, emotional response, sporting interests, occupational interests, and interpersonal style. Recalled childhood gender nonconformity (CGN) was significantly associated with each BOP-GT subscale. Heterosexual men rated that other people perceived them to be more masculine scoring on the BOP-GT compared to heterosexual women. Gay men and lesbian women showed cross-sexed patterns on the BOP-GT total scale, appearance, emotional response, and sporting interests scores. Bisexual men and women were generally no different from the other male and female groups, respectively. Bisexual women had greater distress scores, and the BOP-GT emotional response subscale was associated with somewhat greater distress scores. The BOP-GT measure may have use in future research on understanding gendered self-concepts. PMID- 29043853 TI - Microvascular Network and Its Endothelial Cells in the Human Iris. AB - PURPOSE: The iris allows effective delivery of nutrients into the aqueous humor supplying the surrounded avascular tissues. However, possible underlying mechanisms of the iris vasculature have not been well established. This study aims to quantitatively assess the human iris vascular network, endothelial cell morphometries, and characterize endothelial junctions to better understand the properties of the iris vasculature. MATERIALS AND METHODS: The irises from human donor eyes were dissected and short fixed before float staining for VE-cadherin and claudin-5, f-actin and nuclei and flat-mounted for confocal imaging. The iris microvasculature was studied for its distribution and branch orders. The endothelial and nuclear morphometrics were measured for each vessel order. Characteristics of cellular junction staining and intracellular cytoskeleton were investigated. RESULTS: The human iris vasculature was found to comprise of six orders of arteries, three orders of veins, and capillaries. The endothelial cell shape was long and narrow in all arteries, suggesting a high hemodynamic shear stress. Relatively large vessels ran radially in the superficial two-thirds of the iris, while smaller and denser vessels ran in the deepest third. Significant heterogeneity in vascular diameter, shape of the endothelia and nuclei, and the nuclear position was evident between artery, capillary and vein. Staining of junction proteins VE-cadherin and claudin-5 appeared non-uniform at the cell borders, especially in large veins. CONCLUSIONS: High rates of blood flow and special barrier properties are indicated by the morphological properties of the human iris vasculature. Detailed information of the iris vasculature combined with the inter- and intra-endothelial structure may help us further understand the physiological and pathogenic roles of the iris. PMID- 29043854 TI - The epigenetic landscape of myalgic encephalomyelitis/chronic fatigue syndrome: deciphering complex phenotypes. PMID- 29043855 TI - Predictors of receptive and expressive vocabulary development in children with Down syndrome. AB - PURPOSE: There is a lack of longitudinal data on predictors of vocabulary development in children with Down syndrome (DS). In typically developing children, many internal and external predictors of vocabulary development have been determined before. The purpose of the present study was to investigate the role of these variables in the receptive and expressive vocabulary development of children with DS. METHOD: The present study used a longitudinal design in young children with DS to study the vocabulary development over a period of 1.6 years and investigated the possible predictive role of child-related and environmental variables. RESULT: Receptive vocabulary development was best predicted by the adaptive level of functioning and early receptive vocabulary skills. Expressive vocabulary development was best predicted by the adaptive level of functioning, receptive vocabulary, maternal educational level, level of communicative intent of the child, attention skills and phonological/phonemic awareness. CONCLUSION: A wide range of internal and external predictors for vocabulary development of children with DS was found. Predictors resemble those predicting vocabulary development in peers with typical development between 1 and 6 years of age, as identified in other studies. PMID- 29043856 TI - Genome-Wide Association Study of 58 Individuals with Fibrosing Mediastinitis Reveals Possible Underlying Genetic Susceptibility. PMID- 29043857 TI - Magnetic carbon nanotubes: preparation, physical properties, and applications in biomedicine. AB - Magnetic carbon nanotubes (MCNTs) have been widely studied for their potential applications in medicine, diagnosis, cell biology, analytical chemistry, and environmental technology. Introduction of MCNTs paved the way for the emergence of new approaches in nanobiotechnology and biomedicine as a result of their multifarious properties embedded within either the carbon nanotubes (CNTs) or magnetic parts. Numerous preparation techniques exists for functionalizing CNTs with magnetic nanoparticles, and these versatile strategies lay the ground for the generation of novel and versatile systems which are applicable to many industries and biological areas. Here, we review and discuss the recent papers dealing with MCNTs and their application in biomedical and industrial fields. PMID- 29043858 TI - Melanoma segmentation based on deep learning. AB - Malignant melanoma is one of the most deadly forms of skin cancer, which is one of the world's fastest-growing cancers. Early diagnosis and treatment is critical. In this study, a neural network structure is utilized to construct a broad and accurate basis for the diagnosis of skin cancer, thereby reducing screening errors. The technique is able to improve the efficacy for identification of normally indistinguishable lesions (such as pigment spots) versus clinically unknown lesions, and to ultimately improve the diagnostic accuracy. In the field of medical imaging, in general, using neural networks for image segmentation is relatively rare. The existing traditional machine-learning neural network algorithms still cannot completely solve the problem of information loss, nor detect the precise division of the boundary area. We use an improved neural network framework, described herein, to achieve efficacious feature learning, and satisfactory segmentation of melanoma images. The architecture of the network includes multiple convolution layers, dropout layers, softmax layers, multiple filters, and activation functions. The number of data sets can be increased via rotation of the training set. A non-linear activation function (such as ReLU and ELU) is employed to alleviate the problem of gradient disappearance, and RMSprop/Adam are incorporated to optimize the loss algorithm. A batch normalization layer is added between the convolution layer and the activation layer to solve the problem of gradient disappearance and explosion. Experiments, described herein, show that our improved neural network architecture achieves higher accuracy for segmentation of melanoma images as compared with existing processes. PMID- 29043859 TI - Gastrointestinal bleeding associated with chronic excessive use overdosing with topical ketoprofen patch in elderly patient. AB - PURPOSE: Topical ketoprofen patch has been developed to reduce the risk of systemic adverse effects such as gastrointestinal injury and renal toxicity. MATERIALS AND METHODS: We reported here a case of lower intestinal bleeding associated with chronic excessive use of topical ketoprofen patch in an elderly patient. RESULTS: A 74-year-old female visited to the outpatient clinic of the Gifu University Hospital and admitted thereafter. She had fecal occult blood and anemia. Enteroscopic examination showed several ulcerative lesions and a protruded lesion accompanied with redness in the small intestinal mucosa. She used 8 sheets of 20 mg ketoprofen patch every day for a long period to relieve pain in the shoulder, lower back and lower limb. She had no diseases that are related to the initiation of gastrointestinal bleeding, including infection, inflammatory bowel disease, autoimmune disease and malignant disease. Thus, the present lower intestinal bleeding was concluded to be due to the use of topical ketoprofen patch. The symptoms were recovered after cessation of the patch. CONCLUSIONS: Extensive care should be taken to avoid ulcerative intestinal hemorrhage to elderly patients receiving multiple doses of non-steroidal anti inflammatory drug patch for multiple days. PMID- 29043860 TI - Development and in vitro/in vivo evaluation of HPMC/chitosan gel containing simvastatin loaded self-assembled nanomicelles as a potent wound healing agent. AB - The aim of this study was to develop hydroxypropyl methyl cellulose (HPMC)/chitosan gel containing polymeric micelles loaded with simvastatin (Sim) and evaluates its wound healing properties in rats. An irregular full factorial design was employed to evaluate the effects of various formulation variables including polymer/drug ratio, hydration temperature, hydration time, and organic solvent type on the physicochemical characteristics of pluronic F127-cholesterol nanomicelles prepared using the film hydration method. Among single studied factors, solvent type had the most impact on the amount of drug loading and zeta potential. Particle size and release efficiency was more affected by hydration temperature. The optimized formulation suggested by desirability of 93.5% was prepared using 1 mg of Sim, 10 mg of copolymer, dichloromethane as the organic solvent, hydration time of 45 min and hydration temperature of 25 degrees C. The release of the drug from nanomicelles was found to be biphasic and showed a rapid release in the first stage followed by a sustained release for 96 h. The gel contained nanomicelles exhibited pseudo-plastic flow and more sustained drug release profile compared to nanomicelles. In excision wound model on normal rats, the wound closure of the group treated by Sim loaded micelles-gel was superior to other groups. Taken together, Sim loaded micelles-gel may represent a novel topical formulation for wound healing. PMID- 29043861 TI - Nasobiliary drainage can reduce the incidence of post-ERCP pancreatitis after papillary large balloon dilation plus endoscopic biliary sphincterotomy: a randomized controlled trial. AB - BACKGROUND AND AIMS: Post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis can be reduced following endoscopic papillary balloon dilation with the placement of an endoscopic nasobiliary drainage (ENBD) catheter. The aim of this study was to determine whether the placement of an ENBD reduces the risk of post-ERCP pancreatitis following endoscopic papillary large balloon dilation together with endoscopic biliary sphincterotomy. METHODS: A total of 160 patients with bile duct stones were randomly assigned (1:1) to an ENBD group or no-ENBD group. The primary outcome of this study was the incidence of post-ERCP pancreatitis. The secondary outcome was the incidence of post-ERCP hyperamylasemia. RESULTS: In total, 160 patients were randomized, and 155 were found to be eligible for the analysis. The two groups were similar regarding clinical and demographic factors as well as patient- and procedure-related risk factors for post-ERCP pancreatitis. Post-ERCP pancreatitis developed in 9 patients, that is, 8/77 (10.4%) of the control group and 1/78 (1.28%) of the ENBD group (p = .018; per protocol analysis). Intention to treat analysis also revealed that ENBD reduced the rate of post-ERCP pancreatitis (8/80 (10%) in the control group vs. 1/80 (1.25%) the ENBD group (p = .034)). Multivariate regression analysis identified not undergoing ENBD as an independent risk factor for post-ERCP pancreatitis (ENBD compared with no-ENBD: OR 0.087, 95% CI 0.011 0.734; p = .025). CONCLUSION: This study demonstrated that placement of an ENBD was effective and safe for the prevention of post-ERCP pancreatitis in patients undergoing endoscopic papillary large balloon dilation together with endoscopic biliary sphincterotomy. PMID- 29043862 TI - The potential role of FDG PET-CT in the characterization of the activity of Crohn's disease, staging follow-up and prognosis estimation: a pilot study. AB - OBJECTIVES: FDG PET-CT is a global, noninvasive, sensitive method to determine the location and activity of inflammatory lesions. Segmental FDG uptake is proportional with immune cell infiltration of bowel. Our aim was to evaluate prospectively the role of PET in patients with active Crohn's disease (CD) before and after one year's biological therapy, and to compare simple endoscopic score for CD (SES-CD), CD activity index (CDAI) and global PET scores. We also analyzed the prognostic value of initial PET scores. PATIENTS: Twelve patients were selected: six male/six female, ages between 18 and 39, average: 24 years, with CDAI values >300. METHODS: We scored the FDG uptake in the small intestine and the four colon segments (on a scale 0-3 for each), and summed them thus forming a global PET score. The scoring was based on the maximal standardized uptake value of the intestinal segment, related to the SUVmax of the liver (as a reference for normal tissue activity). The SES-CD, CDAI and global PET scores before and after treatment were statistically compared. RESULTS: There were significant changes in CDAI and SES-CD after therapy, PET scores improved only in patients' subgroup with high (>4) initial PET score, indicating good prognosis of biological treatment. In active disease, PET was more informative than endoscopy to access the extent of the inflammation, and small intestine involvement. CONCLUSIONS: FDG PET-CT score is a promising, noninvasive complementary method in the staging, treatment planning and follow-up of CD. Limitation of the study is the small number of patients. PMID- 29043863 TI - Preparation and evaluation of Vinpocetine self-emulsifying pH gradient release pellets. AB - The main objective of this study was to develop a pH gradient release pellet with self-emulsifying drug delivery system (SEDDS), which could not only improve the oral bioavailability of Vinpocetine (VIN), a poor soluble drug, but reduce the fluctuation of plasma concentration. First, the liquid VIN SEDDS formulation was prepared. Then the self-emulsifying pH gradient release pellets were prepared by extrusion spheronization technique, and formulation consisted by the liquid SEDDS, absorbent (colloidal silicon dioxide), penetration enhancer (sodium chloride), microcrystalline cellulose, ethyl alcohol, and three coating materials (HPMC, Eudragit L30D55, Eudragit FS30D) were eventually selected. Three kinds of coated pellets were mixed in capsules with the mass ratio of 1:1:1. The release curves of capsules were investigated in vitro under the simulated gastrointestinal conditions. In addition, the oral bioavailability and pharmacokinetics of VIN self-emulsifying pH gradient release pellets, commercial tablets and liquid VIN SEDDS were evaluated in Beagle dogs. The oral bioavailability of self-emulsifying pH gradient release pellets was about 149.8% of commercial VIN tablets, and it was about 86% of liquid VIN SEDDS, but there were no significant difference between liquid SEDDS and self-emulsifying pH gradient release pellets. In conclusion, the self-emulsifying pH gradient release pellets could significantly enhance the absorption of VIN and effectively achieve a pH gradient release. And the self-emulsifying pH gradient release pellet was a promising method to improve bioavailability of insoluble drugs. PMID- 29043864 TI - Which analgesic is efficient prior to intrauterine device insertion? PMID- 29043865 TI - A pediatric case of acute megakaryocytic leukemia with double chimeric transcripts of CBFA2T3-GLIS2 and DHH-RHEBL1. PMID- 29043866 TI - Three-dimensional finite element analysis of glass fiber and cast metal posts with different alloys for reconstruction of teeth without ferrule. AB - The aim of this study was to evaluate different materials for restoration of teeth without ferrule by three-dimensional (3D) finite element analysis (FEA). Five models simulating the maxillary central incisor and surrounding bone were simulated according to the type of post: glass fibre post (GFP) or cast metal post (CMP) with different alloys such as gold (Au), silver-palladium (AgPd), copper-aluminum (CuAl) and nickel-chromium (NiCr). Models were designed using Invesalius and Rhinoceros. FEAs were made using FEMAP and NeiNastran, with an applied axial force of 100 N and oblique occlusal load at 45 degrees . Stress distribution among groups was analysed by two-way analysis of variance (ANOVA), followed by post-hoc Tukey's test. The GFP showed the best stress distribution in the post, followed by CMP with Au, AgPd, CuAl and NiCr alloys, respectively (p < .001). No statistically significant difference in the stress distribution in teeth was found under application of axial load (p > .05). Under oblique load, the GFP generated the highest values of tension among the models, followed by the CMP with NiCr alloy than other models (p < .001). The use of GFP resulted in a lower stress concentration in the post, but increased stress in the tooth without ferrule. The CMP with NiCr alloy exhibited the highest stress distribution among other CMP. To avoid higher stress in teeth, alloys of Au, AgPd and CuAl, respectively, are recommended. PMID- 29043867 TI - Risk factors for surgery in patients with retention of endoscopic capsule. AB - OBJECTIVES: Surgery is still the main means for removing retained endoscopic capsules. This study intended to evaluate risk factors for surgery in patients with capsule retention. MATERIALS AND METHODS: The data of 5348 consecutive capsule endoscopy examinations were retrospectively analyzed. Cox regression analysis was used to evaluate risk factors. RESULTS: Seventy-seven patients (1.4%) had capsule retention. Spontaneous passage occurred in 16 patients, of which 14 were asymptomatic. Successful retrieval by double-balloon enteroscopy (DBE) was achieved in 14 patients, of which 11 did not need surgery during clinical follow-up. A total of 50 patients underwent surgery. The cumulative rates of surgery were 44.2%, 53.2%, 55.8%, 62.3% and 64.9% at 1, 3, 6, 12 and 60 months after capsule retention, respectively. Intestinal obstruction [hazard ratio (HR) 2.05, 95% confidence interval (CI) 1.12-3.76; p = .020] and overt small bowel bleeding (HR 2.01, 95%CI 1.08-3.71; p = .027) during capsule retention were independently associated with an increased risk for surgery. Specific treatment for primary disease (HR 0.22, 95%CI 0.07-0.74, p = .014) and successful endoscopic retrieval (HR 0.20, 95%CI 0.06-0.66; p = .008) were independently associated with a decreased risk for surgery. CONCLUSIONS: For asymptomatic patients, specific medical treatment for primary disease can be maintained until the capsule spontaneously passes or symptoms appear. For patients with slight abdominal pain, DBE can be performed. For patients with intestinal obstruction or overt small bowel bleeding, early surgical consultation should be considered. PMID- 29043868 TI - Determinants of optimal bowel function in ileal pouch-anal anastomosis - physiological differences contributing to pouch function. AB - BACKGROUND: Variability in functional outcome after ileal-pouch anal anastomosis (IPAA) is to a large extent unexplained. The aim of this study was to perform multiple physiological and biochemical tests including an endoscopic examination with histology on IPAA patients with well and poorly functioning pouches to determine factors, or combinations thereof, contributing to functional outcome. METHODS: All patients with ulcerative colitis undergoing restorative proctocolectomy between 2000 and 2013 (N = 108) were interviewed using a pouch functioning score. The best and worst functioning quartiles were invited to undergo examination with a barostat measuring pouch volume at preset variable distension pressures, and a pouch endoscopy. RESULTS: Forty five of 58 eligible patients agreed to participate. The most significant physiological parameter differing between the well and poorly functioning pouches was pouch volume at first sensation, urge and discomfort (p value <.001). Urge volumes were 213 (CI 171-256) ml for poorly and 352 (CI 305-401) ml for well functioning pouches. Pouchitis episodes were negatively correlated to function. The poorly functioning patients had a higher prevalence of histological signs of inflammation and hand sewn anastomosis, and a longer remaining rectal cuff, however, nonsignificant. The pouch pressure at sensation thresholds did not differ between the groups. CONCLUSIONS: Pouch volume is the most dominant predictor of pouch function in this study. The present comprehensive study of a multitude of different factors that possibly could be contributing to functional outcome, failed to shed much further light on the functional variability among pouch patients. The pouch physiology remains to a large extent unexplained. PMID- 29043869 TI - Identifying the biomarker potential of telomerase activity and shelterin complex molecule, telomeric repeat binding factor 2 (TERF2), in multiple myeloma. AB - Telomere length (TL) is maintained by telomere capping protein complex called shelterin complex. We studied the possible involvement and biomarker potential of shelterin complex molecules in naive multiple myeloma (MM) patients and controls. TL, relative telomerase activity (RTA), real-time PCR and Western blotting were performed in bonemarrow sample of 70 study subjects (patients = 50; controls = 20). Significantly lowered mean TL, increased RTA and higher mRNA expression of shelterin molecules were observed in patients, while PIN2/TERF1 interacting telomerase inhibitor 1 (PINX1) showed lower mRNA expression. Significantly increased protein expression of telomeric repeat binding factor 2 (TERF2), protection of telomeres 1, adrenocortical dysplasia homolog, Tankyrase 1 and telomere reverse transcriptase were observed in MM patients. Significant correlation was observed among genes and of genes with clinical parameters. In conclusion, our findings showed alteration of these molecules at mRNA and protein levels suggested their involvement in disease progression. Optimal sensitivity and specificity of TERF2 and RTA on receiver operating characteristics curve analysis and univariate analysis demonstrated their biomarkers potential in better prediction of disease course. PMID- 29043870 TI - Weekly subcutaneous injection of tocilizumab in patients with rheumatoid arthritis. PMID- 29043871 TI - A review of sarilumab for the treatment of rheumatoid arthritis. AB - Rheumatoid arthritis (RA) is a chronic systemic inflammatory disease predominantly affecting the peripheral diarthrodial joints. Sarilumab is a human monoclonal antibody against the IL-6 receptor-alpha. In Phase II and III clinical trials, sarilumab in the background of methotrexate showed superior clinical efficacy over placebo in RA patients with inadequate response to methotrexate or inadequate response or intolerance to TNF inhibitors. Sarilumab monotherapy also showed superior efficacy compared with adalimumab monotherapy in RA patients with inadequate response or intolerance to methotrexate. For safety, injection site reaction, neutropenia and elevation of liver enzymes and serum cholesterol were more commonly observed with sarilumab than with placebo. Overall, sarilumab is expected to serve as another useful antirheumatic drug against active RA. PMID- 29043872 TI - A rare case of polyglandular autoimmune syndrome type IIIc with primary antibody failure. AB - Primary antibody deficiency syndromes are a rare group of disorders present at any age, with complex polygenic disorders. We report the forth case of polyglandular autoimmune syndrome (PAS) type IIIc worldwide with complex clinical features and no family history of endocrine disorders or primary immunodeficiencies. Our patient, a 44-year-old Caucasian female was diagnosed with PAS type IIIc due to the presence of autoimmune thyroiditis, autoimmune alopecia diffusa and primary ovarian insufficiency, associated with lymphoproliferative disease and primary antibody failure. Treatment included lifelong intravenous immunoglobulin, supplements and antibiotics. The clinical complexity and rare occurrence made it challenging to determine diagnosis and provide better treatment for the patient. The current case provides an insight of the challenges to determine primary antibody failure signs in the presence of PAS which will further help to determine diagnosis and therapeutic treatment for PAS patients. PMID- 29043873 TI - The use of beeswax as heating element in non-electric infant incubator. AB - Non-electric infant incubators are needed in remote areas that have no access to electricity to reduce infant mortality nationwide. In previous studies, non electric infant incubators have been developed using phase change material of beeswax as the heating element. This study aims to improve the performance of beeswax non-electric infant incubator to obtain a more reliable and practical one. The design of the original beeswax cartridge in the form of copper boxes was modified into tubes of stainless steel. The geometry and location of the air holes were also modified. Wood that was previously used as the body material was replaced with polyurethane to reduce the weight of the incubator. The beeswax cartridges were heated using boiling water until the beeswax melted. For temperature measurement, five 0.5 mm k-type thermocouples were placed inside of the incubator according to the National Industrial Standard of SNI 16-4221. The beeswax cartridge arrangement was varied to obtain the best performance. The results showed that polyurethane provides infant incubator lighter and more practical to use. The new design of non-electric infant incubator was capable of providing a temperature of 32-36 degrees C for 2 h. PMID- 29043874 TI - The risk of occupational exposure to mercury vapor in some public dental clinics of Baghdad city, Iraq. AB - BACKGROUND: Dental workers are exposed to elevated levels of elemental mercury vapor substantially above the occupational exposure standards when placing or removing mercury/silver tooth restorations and disposing of mercury waste. This results in a significant increase in occupational exposure and risk of mercury intoxication. METHODS: To evaluate the occupational exposure of dental workers to amalgam in four dental clinics in Baghdad city, the concentrations of mercury vapor were measured seasonally from February to November 2016. Samples of blood and urine were collected from 30 dental workers (exposed individuals) and five non-occupationally exposed individuals. Biochemical parameters such as cholesterol, liver enzymes (alanine aminotransferase, aspartate aminotransferase and alkaline phosphatase), renal enzymes (urea and creatinine), total protein and reduced glutathione (GSH) were observed. RESULTS: The results indicated that mercury vapor levels varied from 84.7 +/- 18.67 to 609.3 +/- 238.90 ug/m3 and most concentrations were above the occupational exposure standards. The results of the biochemical parameters showed a significant increase in levels of cholesterol, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) and no significant increase in blood urea and creatinine in dental workers in comparison with unexposed persons (control). Although the results showed a significant reduction in the levels of glutathione and total protein, there was no significant decrease in the levels of alkaline phosphatase (ALP) in exposed dental workers when compared with non-occupationally exposed individuals. CONCLUSIONS: It is concluded that mercury vapor concentrations in the indoor air of some dental clinics in Baghdad city are high and exceed the OSHA STEL(Occupational Safety and Health Administration Short Term Exposure Limit). The present data showed that altered biochemical parameters can be used as efficient bioindicators for mercury toxicity. PMID- 29043875 TI - Consolidation therapy with decitabine and intermediate-dose cytarabine followed by HLA-mismatched peripheral blood stem cells infusion for older patients with acute myeloid leukemia in first remission. AB - This retrospective study tested the feasibility of decitabine (DAC) plus intermediate-dose cytarabine (ID-AraC) followed by HLA-mismatched granulocyte colony-stimulating factor (G-CSF)-mobilized peripheral donor blood stem cells (GPBSCs) infusion as consolidation treatment for older patients with acute myeloid leukemia (AML) in first complete remission (CR). A total of 23 patients received this regimen for 3 cycles (D-GPBSCs group), and the outcome was compared with that of 19 patients treated with repeated cycles of ID-AraC chemotherapy (chemo group). The two regimens were well tolerated. The median recovery times for neutrophils and platelets were shorter in D-GPBSCs group than in chemo group (p<.05). No graft-versus-host disease (GVHD) was observed in D-GPBSCs group. The 2-year leukemia-free survival (LFS) and overall survival (OS) were better in D GPBSCs group (51.6 and 55.4%) than in chemo group (27.1 and 34.2%) (p = .047 and p = .056). These data suggest that DAC and ID-AraC followed by GPBSCs as a consolidation regimen may be a safe and promising option for older patients with AML. PMID- 29043876 TI - Comment on "Bedside teaching with unwell patients: Can it ever be appropriate?" PMID- 29043877 TI - The seven deadly sins writers of academic papers should avoid. PMID- 29043878 TI - The association between homocysteine and systemic sclerosis: A review of the literature and meta-analysis. AB - OBJECTIVES: The main objective of this study was to summarize the existing evidence and quantitatively evaluate whether serum/plasma levels of homocysteine (Hcy) were associated with sclerosis (SSc) diseases by performing a meta-analysis of previous studies. METHODS: PubMed, Elsevier ScienceDirect and Cochrane Library databases were used to obtain all relative published literatures. Stata version 11.0 (StataCorp, College Station, TX) was used for statistical analysis. The effect size of each study was calculated by the standardized mean difference (SMD) with 95% confidence interval (CI) or quartiles. RESULTS: A total of eight studies including 475 cases and 265 controls were finally included in this meta analysis. We found significant between-study heterogeneity and conducted analyses using random-effects models. No significant association was found between the serum levels of Hcy and SSc (pooled SMD =1.382 MUmol/L, 95%CI = -0.442 to 3.206, p = .137), but there are two outlier studies that deviate significantly from most other studies, which made it difficult to generalize these results. After excluding these two studies, six studies were included in the meta-analysis. The results showed that the serum levels of Hcy in SSc were significantly higher than that in healthy controls (pooled SMD = 1.182MUmol/L, 95%CI = 0.230-2.134, p = .015). CONCLUSION: Serum/plasma levels of Hcy in SSc diseases were higher than that in healthy controls. PMID- 29043879 TI - Use of an objective structured clinical exam (OSCE) for early identification of communication skills deficits in interns. AB - INTRODUCTION: There is limited information about whether OSCE during GME orientation can identify trainee communication deficits before these become evident via clinical performance evaluations. METHODS: Ninety-seven interns matriculating to eight residency programs in six specialties at four hospitals participated in a nine-station communication skills OSCE. Ratings were based on the "Kalamazoo, adapted" communication skills checklist. Possible association with intern performance evaluations was assessed by repeated-measures logistic regression and ROC curves were generated. RESULTS: The mean OSCE score was 4.08 +/- 0.27 with a range of 3.3-4.6. Baseline OSCE scores were associated with subsequent communication concerns recorded by faculty, based on 1591 evaluations. A 0.1-unit decrease in the OSCE communication score was associated with an 18% higher odds of being identified with a communication concern by faculty evaluation (odds ratio 1.18, 95% CI 1.01-1.36, p = 0.034). ROC curves did not demonstrate a "cut-off" score (AUC= 0.558). Non-faculty evaluators were 3-5 times more likely than faculty evaluators to identify communication deficits, based on 1900 evaluations. CONCLUSIONS: Lower OSCE performance was associated with faculty communication concerns on performance evaluations; however, a "cut-off" score was not demonstrated that could identify trainees for potential early intervention. Multi-source evaluation also identified trainees with communication skills deficits. PMID- 29043880 TI - Concurrent therapy of chronic lymphocytic leukemia and Philadelphia chromosome positive acute lymphoblastic leukemia utilizing CD19-targeted CAR T-cells. PMID- 29043881 TI - Characterization of the mutational profile of 11 diffuse large B-cell lymphoma cell lines. AB - Investigation of cancer cell lines is important for oncology research to characterize and understand mechanisms of cellular signaling and survival strategies in cancer. We analyzed the mutational profile of 11 diffuse large B cell lymphoma (DLBCL) cell lines using a customized high throughput sequencing panel. We compared our data to previously published mutation data to better characterize these cell lines and establish consensus on the mutational status of some functionally relevant genes. With our targeted sequencing approach we detected 61 somatic mutations. The most frequently affected gene was TP53. MYD88 mutations were only seen in activated B-cell like cell lines. Overall comparison across different datasets revealed that just around 38% of mutations are reliable and can be validated by at least two independent observations whereas 24% of mutations could not be validated. Our analysis reveals considerable discrepancies regarding the mutational profile of some well-established cell lines. PMID- 29043882 TI - Ovarian volume and PCOS: a controversial issue. AB - Polycystic ovarian syndrome (PCOS) is a common endocrinopathy. The Rotterdam criteria indicate four distinct phenotypes. In phenotypes with the typical ovarian morphology (ovarian volume >=10 ml) the sensibility to clomiphene citrate (CC) ovulation therapy was demonstrated inversely proportional to the ovarian volume. In this retrospective study we evaluated the influence of ovarian volume on the success rate of CC ovulation induction in women with anovulatory phenotype 2 characterized only by the presence of hyperandrogenism and anovulation (ANOV + HA). Statistical analysis was conducted by stratifying patients both on the basis of CC dose (Group 1: n = 37, 50 mg; Group 2: n = 9, 100 mg; and Group 3: n = 12, 150 mg) and on the basis of response to therapy. Eighty women were evaluated but overall only 58 women (72.5%) reached ovulation. In the phenotype studied, we didn't find any correlations between ovarian volume and the chance of ovulation with the gradient increase in CC; furthermore, ovarian volume was comparable in CC responders and non-responders. Our study has shown that in the phenotype 2 examined, ovarian volume did not have any predictive value of the dosage required to induce ovulation. The significance of this result is discussed. PMID- 29043883 TI - Structural maintenance of chromosomes 4 is required for leukemia stem cell maintenance in MLL-AF9 induced acute myeloid leukemia. AB - The gene, structural maintenance of chromosomes 4 (SMC4) plays important role in chromosomes condensing and mitotic sister chromatid segregation, which has been revealed in regulating multiple cancer development and carcinogenesis. However, the role of SMC4 in acute myeloid leukemia (AML) propagation and its function in regulation of leukemia stem cells (LSCs) is not yet clear. Using an MLL-AF9 induced AML mouse model, we demonstrated that down modulating of SMC4 expression could prolong the survival time of AML mice. Furthermore, we found that knockdown SMC4 expression decreased the proportion of LSCs and affected its leukemia initiating capacity. Cell cycle assay demonstrated that more LSCs were arrested in G0 phase by SMC4 knockdown. This activity was accompanied by increased expression of the Cdkn1a (P21) and Cdkn1b (P27) as well as decreased expression of CDK4. Therefore, our study revealed the critical role of SMC4 during AML progression and provided new insights into the mechanism of LSC maintenance. PMID- 29043884 TI - Guselkumab for psoriasis: a critical appraisal of Phase III studies. AB - Biologic therapies have raised the frontiers of accepted treatment efficacy for severe psoriasis. Guselkumab is an IgG1 monoclonal antibody that binds to the p19 subunit and inhibits IL-23. In three Phase III randomized, active comparator and placebo controlled trials, guselkumab demonstrated superior efficacy and a comparable safety profile when assessed against adalimumab and ustekinumab. Critical appraisal highlighted uncertainties over risk of bias from missing details in the trial publications that would be overcome with the provision of accompanying trial protocols, as well as the need for a head-to-head trial against an IL-17 inhibitor. Overall, guselkumab is a promising addition to the biologic options for psoriasis due to its high efficacy, safe profile, low immunogenicity and efficacy in ustekinumab and adalimumab nonresponders. PMID- 29043885 TI - First Report of Hb Kent [beta37(C3)Trp->Cys (TGG>TGC) HBB: c.114G>C] in a Chinese Family. AB - We report a novel HBB: c.114G>C mutation in a Chinese family. This mutation resulted in a beta37(C3)Trp->Cys amino acid substitution and was synonymous with Hb Kent, a hemoglobin (Hb) variant that was reported exclusively in patients of European descent. Though Hb Kent has a normal oxygen affinity and molecular stability, it has a characteristic dual variant appearance on cellulose acetate electrophoresis (CAE) and high performance liquid chromatography (HPLC) caused by the posttranslational modification of cysteine. We also report the phenotypic expression of this variant when coinherited with the Southeast Asian (- -SEA) double alpha-globin gene deletion. PMID- 29043886 TI - Assessing the risk of alcohol-induced dose dumping from sustained-release oral dosage forms: in vitro-in silico approach. AB - Consumption of alcoholic beverages with sustained-release oral dosage forms may pose a risk to patients due to potential alcohol-induced dose dumping (ADD). Regulatory guidances recommend in vitro dissolution testing to identify the risk of ADD, but the question remains whether currently proposed test conditions can be considered biopredictive. The purpose of this study was to evaluate different dissolution setups to assess ADD, and the potential of combined in vitro-in silico approach to predict drug absorption after concomitant alcohol intake for hydrophilic and lipophilic sustained-release tablets containing ibuprofen or diclofenac sodium. According to the obtained results, the impact of ethanol was predominantly governed by the influence on matrix integrity, with the increase in drug solubility being less significant. Hydrophilic matrix tablets were less susceptible to ADD than lipophilic matrices, although the conclusion on formulation ethanol-vulnerability depended on the employed experimental conditions. In silico predictions indicated that the observed changes in drug dissolution would not result in plasma concentrations beyond therapeutic window, but sustained-release characteristics of the formulations might be lost. Overall, the study demonstrated that in vitro-in silico approach may provide insight into the effect of ADD on drug clinical performance, and serve as a tool for ADD risk assessment. PMID- 29043887 TI - Living with Low Vision: Strategies Supporting Daily Activity. AB - The purpose of this research was to describe the strategies that older adults with low vision use to support daily living. A descriptive qualitative study of 10 older adults with low vision was conducted using semistructured, audio recorded interviews. The data was coded and grouped into categories, and the findings were summarized. Four major themes were identified: (a) device nonuse; (b) sensory strategies and devices; (c) environmental strategies; and (d) resourcefulness. Older adults with low vision try many devices and strategies to find the ones that allow them to participate in meaningful activity within their physical and social environment. These findings support the use of a client centered, multicomponent, problem-solving approach to low vision rehabilitation to maximize performance of daily activity despite declining vision. PMID- 29043888 TI - Effect of sound generator on tinnitus and hyperacusis. AB - OBJECTIVE: Sound generator (SG) plays a role as effective sound therapy of tinnitus retaining therapy (TRT) in patients with severe tinnitus (Category 1) or hyperacusis (Category 3). This study was performed to evaluate the therapeutic effect of SGs. METHODS: A total of 120 tinnitus patients who visited our tinnitus clinic and were treated with SG along with TRT from January 2008 to December 2016 were included. The patients were divided into two groups by tinnitus category; 78 patients of category 1 and 42 patients of category 3. Their medical records including questionnaires regarding tinnitus severity were retrospectively reviewed to evaluate the therapeutic effect of SGs on tinnitus and hyperacusis. RESULTS: Category 3 patients included more female patients, were younger than category 1 patients (p = .001), and were prescribed SG earlier due to their severe symptom of hyperacusis. (p = .004) All patients showed significant improvements on all categories of tinnitus visual analogue scale (VAS) scores and tinnitus handicap inventory (THI) scores after six months use of SG (p < .05). Loudness discomfort levels measured by pure tone audiometry were significantly improved in category 3 group after six months use of SGs. CONCLUSION: SG with TRT seems to be an effective treatment modality for all tinnitus patients, especially those with comorbid hyperacusis. PMID- 29043889 TI - Unconventional treatments for chronic inflammatory demyelinating polyneuropathy. AB - This article focuses on the unconventional treatments used in chronic inflammatory demyelinating polyneuropathy (CIDP). First line, evidence-based treatments for CIDP include corticosteroids, immunoglobulins and plasma exchanges. Several unproven treatments are however given in treatment-refractory disease or to reduce requirements in validated therapies for reasons of side effects/practical delivery/cost. Despite methodological issues, IFN-alpha, azathioprine and methotrexate have not been shown to be useful in randomized controlled trials. Cyclophosphamide, rituximab and, as final resort in highly selected cases, hematopoietic stem cell transplant may be options considered in severely disabled refractory patients. Debatably, azathioprine, methotrexate, cyclosporine and mycophenolate mofetil are still occasionally used, among others, in milder disease. Physical therapy may be of benefit in CIDP but is not systematically considered as an integral part of management strategies. Current literature relating to unconventional therapies in CIDP is reviewed here and the possible avenues that require consideration in severe refractory disease and less disabling forms are discussed. PMID- 29043890 TI - 'Yeah, I've grown; I can't go out anymore': differences in perceived risks between girls and boys entering adolescence. AB - This analysis is based on data from the Global Early Adolescent Study, which aims to understand the factors that predispose young people aged 10-14 years to positive or negative health trajectories. Specifically, interview transcripts from 202 adolescents and 191 parents across six diverse urban sites (Baltimore, Ghent, Nairobi, Ile Ife, Assuit and Shanghai) were analysed to compare the perceived risks associated with entering adolescence and how these risks differed by gender. Findings reveal that in all sites except Ghent, both young people and their parents perceived that girls face greater risks related to their sexual and reproductive health, and because of their sexual development, were perceived to require more protection. In contrast, when boys grow up, they and their parents recognised that their independence broadened, and parents felt that boys were strong enough to protect themselves. This has negative consequences as well, as boys were perceived to be more prone to risks associated with street violence and peer pressure. These differences in perceptions of vulnerability and related mobility are markers of a gender system that separates young women and men's roles, responsibilities and behaviours in ways that widen gender power imbalance with lifelong social and health consequences for people of both sexes. PMID- 29043891 TI - Rapidly progressive interstitial lung disease in a patient with anti-MDA5 positive amyopathic dermatomyositis. PMID- 29043892 TI - Tofacitinib in the treatment of active rheumatoid arthritis in adults. AB - Tofacitinib, a pan Janus kinase inhibitor, has been investigated as monotherapy in patients naive to methotrexate and in methotrexate incomplete responders and in combination with disease-modifying antirheumatic drugs in antirheumatic drug incomplete responders and TNF inhibitor failures in the Phase II and III programs. The clinical trial program demonstrated efficacy and a reasonable safety profile in these disease populations that has led to the approval of tofacitinib 5 mg twice daily orally in many countries. The pharmacology, chemistry, pharmacokinetics, pharmacodynamics, efficacy and safety in the Phase II and III clinical trials, safety in the long-term extension studies and postmarketing safety reports are the focus of this review. PMID- 29043893 TI - Considerations on: 'Risk of bacterial vaginosis, Trichomonas vaginalis and Candida albicans infection among new users of combined hormonal contraception vs LNG-IUS'. PMID- 29043894 TI - Cognitive behavioural therapy halves the risk of repeated suicide attempts: systematic review. AB - Objective To study whether cognitive behavioural therapy decreases suicide attempts in people with previous suicide attempts. Design Systematic review and meta-analysis. Setting Randomised trials that compare cognitive behavioural therapy with treatment as usual. Participants Patients who had engaged in any type of suicide attempt in the six months prior to trial entry resulting in presentation to clinical services. Main outcome measure Suicide attempt. Results We included ten trials, eight from Cochrane reviews and two from our updated searches (1241 patients, 219 of whom had at least one new suicide attempt). Cognitive behavioural therapy compared to treatment as usual reduced the risk of a new suicide attempt; risk ratio 0.47; 95% confidence interval 0.30-0.73; p = 0.0009; I2 = 57%. Only seven suicides were reported (3 versus 4). One trial had an unusually large effect; if this trial is excluded, the risk ratio becomes 0.61 (0.46-0.80) and the heterogeneity in the results disappears (I2 = 0%). Conclusions Cognitive behavioural therapy reduces not only repeated self-harm but also repeated suicide attempts. It should be the preferred treatment for all patients with depression. PMID- 29043896 TI - Erratum. PMID- 29043895 TI - The quality of information. PMID- 29043897 TI - Role of fibrate drugs in the prevention of diabetic foot. PMID- 29043900 TI - The fall and rise of the NHS. PMID- 29043902 TI - Documenting the dramatic effects of operative treatment of mitral stenosis. PMID- 29043903 TI - Feminism, biomedicine and the 'reproductive destiny' of women in clinical texts on the birth control pill. AB - The birth control pill is one of the most popular forms of contraception in North America and has been a key player in women's rights activism for over 50 years. In this paper, I conduct a feminist deconstructive analysis of 12 biomedical texts on the birth control pill, published between 1965 and 2016. This study is situated amongst the feminist scholarship that challenges the representation of women's bodies in biomedicine. Findings suggest that clinical texts on the birth control pill continue to universalise women's lives and experiences, and essentialise them based on their reproductive capacities. One way the texts accomplish this is by making women absent or passive in the literature thereby losing concern for the diversity of their lives, interpretations and identities as more than reproductive beings. The consequence of such representations is that biomedical texts disseminate limited forms of knowledge, in particular concerning definitions of 'natural' and 'normal' behaviour, with important consequences for the embodied experiences of women. PMID- 29043904 TI - Effects of anesthesia with nitrous oxide on tympanoplasty outcomes: a randomized controlled trial. AB - OBJECTIVES: To investigate effects of nitrous oxide (N2O), as inhalational anesthetic agent, on tympanoplasty outcomes. METHODS: In this randomized controlled trial, patients were randomized into two groups: 39 patients who received N2O as an inhalant anesthesia and 47 patients who did not receive. All were operated on with standard type of ear surgery. The protocol for the two groups was identical. Before surgery baseline audiometry was performed. Postoperative audiological controls were carried out at 3 months. RESULTS: There was no statistically significant difference between two groups regarding graft outcomes. No significant differences were found between the two groups regarding air-bone gap or bone conduction hearing level. CONCLUSIONS: Nitrous oxide usage does not seem to have significant impact on graft or hearing outcome of patients undergoing surgical repair of tympanic membrane. PMID- 29043905 TI - The value of narrow band imaging combined with stroboscopy for the detection of applanate indiscernible early-stage vocal cord cancer. AB - BACKGROUND: Narrow band imaging (NBI) and stroboscopy are non-invasive techniques to detect the malignant lesions of the vocal cord. This study was to assess the diagnostic value of combined endoscopic analysis in the applanate indiscernible early-stage vocal cord cancer. METHODS: A total of 110 patients with 160 suspicious vocal cord malignant lesions were included in this retrospective study. Stroboscopy was immediately performed after NBI and white light endoscopy (WLE) were performed in all patients. Excisional biopsy was performed to examine histopathology examination. RESULTS: We found that the diagnostic specificity and PPV were higher in the NBI and WLE combined with stroboscopy group than in the NBI and WLE group without stroboscopy (88.9% vs 72.5%, 88.4% vs 60.9%). However, the diagnostic sensitivity was not significantly different in those two groups (69.3% vs 67.7%). CONCLUSION: NBI and WLE combined with stroboscopy is a promising method to detect early-stage vocal cord cancer with the advantage of clinical feasibility and diagnostic specificity. PMID- 29043906 TI - Parkinson's disease and the quest for preclinical diagnosis: an interview with Professor Werner Poewe. AB - Werner Poewe speaks to Laura Dormer, Editorial Director: Professor Werner Poewe is Professor of Neurology and Director of the Department of Neurology at Innsbruck Medical University in Innsbruck, Austria. He held a Residency in Clinical Neurology and Psychiatry at the University of Innsbruck, Austria, from 1977 to 1984. From 1984 to 1985 he teamed up with Gerald Stern and Andrew Lees as a British Council Research Fellow at University College and Middlesex Hospital's Medical School in London to perform clinical studies into levodopa-induced dystonia and pharmacokinetics of levodopa in naive versus L-Dopa treated Parkinson's disease. Following his return to Austria, he held a position as Senior Lecturer in the Department of Neurology at the University of Innsbruck (1986-1989) after which he took over as Professor of Neurology and Acting Director of the Department of Neurology at Virchow Hospital of the Free University of Berlin (1990-1994). Professor Poewe's main research interests in the field of movement disorders are focused on differential and early diagnosis of Parkinson's disease, its natural history and pharmacological treatment. He has been involved in the steering committees of numerous drug trials in different stages of Parkinson's disease for the past 20 years and has authored and coauthored more than 500 original articles and reviews in the field of movement disorders. Professor Poewe served as President of the Austrian Society of Neurology from 2002 to 2004 as well as President of the Austrian Parkinson's Disease Society from 1996 to 2009. He has been awarded honorary membership of the German Society of Neurology as well as the Japanese Society of Neurology. His awards include the Walther-Birkmayer-Prize of the Austrian PD Society, the Dingebauer-Prize of the German Neurological Society as well as the Research Excellence Award of Innsbruck Medical University. Professor Poewe served as President of the International Movement Disorder Society (MDS) from 2000 to 2002, during which period he initiated the creation of important MDS task forces related to the critique and development of rating scales and of evidence-based treatment reviews. In his presidency, fell the negotiations between the European Section of MDS and the European Federation of Neurological Societies that resulted in formal agreements about joint European congresses. This model served as an important underpinning of the success of the MDS European Section in the past 15 years. Professor Poewe took over as chair of the MDS European Section from 2011 to 2013 and has recently been made an honorary member of the MDS. He is currently active as member of the Managing Board of the Movement Disorder Scientific Panel of the European Academy of Neurology. PMID- 29043907 TI - Prescription pattern and awareness of disease and treatment in patients of Parkinson's disease. AB - AIM: This cross-sectional study aimed to evaluate the prescription pattern, awareness of disease and treatment in patients with Parkinson's disease (PD). MATERIALS & METHODS: A total of 100 PD patients, attending a tertiary care hospital in Mumbai were included. Prescriptions were analyzed and awareness was evaluated using a questionnaire. RESULTS: The mean number of anti-Parkinson agents (APA) prescribed was 1.52 +/- 0.65. Number of APA strongly correlated with disease duration (rho = 0.818; p < 0.001). Many APA were underutilized (prescribed daily dose/defined daily dose < 1). There was no awareness of all items on symptoms and alternative therapeutic options. Awareness of disease impairments (32%), long-term complications (28%), dosing regimen (46%) and follow up (36%) was poor. CONCLUSION: More than one APA is commonly prescribed in PD patients. Awareness of disease and treatment of PD is poor among the patients. PMID- 29043909 TI - British Journal of Biomedical Science in 2017: What have we learned? AB - In 2017 the British Journal of Biomedical Science published 35 articles in the various disciplines that comprise biomedical science. These were 6 reviews, 22 original articles, 6 'In Brief' short reports and one guideline. Of these, the majority were in clinical chemistry (one review, six data papers), microbiology (one review, four data papers), cellular pathology (four data papers) and virology (one review, two data papers). There were two data papers in transfusion science, whilst haematology, cytopathology and immunology were each represented by one review and one data paper. Reflecting the increasing complexity of the laboratory, five data papers crossed barriers between traditional disciplines, and so may be described as multidisciplinary. The present report will summarise key aspects of these publications. PMID- 29043910 TI - Intersections of girl child marriage and family planning beliefs and use: qualitative findings from Ethiopia and India. AB - Child marriage and subsequent early first birth is a considerable social, economic and health concern, and a pervasive practice in sub-Saharan Africa and South Asia. This study explores barriers and facilitators to family planning among women and girls, and their marital decision-makers subsequent to receipt of child marriage prevention programmes in Ethiopia and India. In-depth interviews with 128 women and girls who were married as minors or who cancelled or postponed marriage as minors and their marital decision-makers were analysed using content analysis. Respondents identified social norms, including child marriage and pressure to have children, and lack of information as barriers to family planning. Benefits included delayed first birth and increased birth spacing, improved maternal and child health and girls' educational attainment. Respondents associated family planning use with delayed pregnancy and increased educational attainment, particularly in Ethiopia. Child marriage prevention programmes were identified as important sources of family planning information. Ethiopia's school based programme strengthened access to health workers and contraception more so than India's community-based programme. Findings highlight young wives' vulnerability with regard to reproductive control, and support the need for multi sector approaches across communities, schools and community health workers to improve family planning among young wives. PMID- 29043908 TI - Early Functional Connectome Integrity and 1-Year Recovery in Comatose Survivors of Cardiac Arrest. AB - Purpose To assess whether early brain functional connectivity is associated with functional recovery 1 year after cardiac arrest (CA). Materials and Methods Enrolled in this prospective multicenter cohort were 46 patients who were comatose after CA. Principal outcome was cerebral performance category at 12 months, with favorable outcome (FO) defined as cerebral performance category 1 or 2. All participants underwent multiparametric structural and functional magnetic resonance (MR) imaging less than 4 weeks after CA. Within- and between-network connectivity was measured in dorsal attention network (DAN), default-mode network (DMN), salience network (SN), and executive control network (ECN) by using seed based analysis of resting-state functional MR imaging data. Structural changes identified with fluid-attenuated inversion recovery and diffusion-weighted imaging sequences were analyzed by using validated morphologic scales. The association between connectivity measures, structural changes, and the principal outcome was explored with multivariable modeling. Results Patients underwent MR imaging a mean 12.6 days +/- 5.6 (standard deviation) after CA. At 12 months, 11 patients had an FO. Patients with FO had higher within-DMN connectivity and greater anticorrelation between SN and DMN and between SN and ECN compared with patients with unfavorable outcome, an effect that was maintained after multivariable adjustment. Anticorrelation of SN-DMN predicted outcomes with higher accuracy than fluid-attenuated inversion recovery or diffusion-weighted imaging scores (area under the receiver operating characteristic curves, respectively, 0.88, 0.74, and 0.71). Conclusion MR imaging-based measures of cerebral functional network connectivity obtained in the acute phase of CA were independently associated with FO at 1 year, warranting validation as early markers of long-term recovery potential in patients with anoxic-ischemic encephalopathy. (c) RSNA, 2017. PMID- 29043911 TI - Dutch courage? Effects of acute alcohol consumption on self-ratings and observer ratings of foreign language skills. AB - AIMS: A popular belief is that alcohol improves the ability to speak in a foreign language. The effect of acute alcohol consumption on perceived foreign language performance and actual foreign language performance in foreign language learners has not been investigated. The aim of the current study was to test the effects of acute alcohol consumption on self-rated and observer-rated verbal foreign language performance in participants who have recently learned this language. METHODS: Fifty native German speakers who had recently learned Dutch were randomized to receive either a low dose of alcohol or a control beverage that contained no alcohol. Following the experimental manipulation, participants took part in a standardized discussion in Dutch with a blinded experimenter. The discussion was audio-recorded and foreign language skills were subsequently rated by two native Dutch speakers who were blind to the experimental condition (observer-rating). Participants also rated their own individual Dutch language skills during the discussion (self-rating). RESULTS: Participants who consumed alcohol had significantly better observer-ratings for their Dutch language, specifically better pronunciation, compared with those who did not consume alcohol. However, alcohol had no effect on self-ratings of Dutch language skills. CONCLUSIONS: Acute alcohol consumption may have beneficial effects on the pronunciation of a foreign language in people who have recently learned that language. PMID- 29043912 TI - Latina young adults' use of health care during initial months in the United States. AB - We examined social ecological predictors of health care utilization among Latina young adults during their initial year after immigration to the United States. Participants were 530 Latinas (ages 18-23) who immigrated to Miami-Dade County, Florida, 11.5 months before assessment. We used multiple logistic regression to test predictors of health care usage. Approximately 36% utilized care. Dimensions of marianismo differentially associated with usage. Usage also was more likely for participants who reported more social network attachment, better health, greater neighborhood cohesion, and possessed a job and health insurance. Findings inform interventions to increase health care usage globally among women after immigration. PMID- 29043913 TI - Trust in Supervisor and Job Engagement: Mediating Effects of Psychological Safety and Felt Obligation. AB - In the social context of job engagement, the role of trust in supervisor in predicting engagement of employees has received attention in research. Very limited research, however, has investigated the mechanisms mediating this dynamic relationship. To address this important gap in knowledge, the aim of this study was to examine psychological safety and felt obligation as two psychological mechanisms mediating the effect of trust in supervisor on job engagement. Drawing from job engagement and social exchange theories, the mediating roles of psychological safety and felt obligation in the trust-engagement relationship were empirically investigated in the Malaysian context. Using self-report questionnaires, data were collected from 337 nurses employed in a public hospital located near Kuala Lumpur, Malaysia. Results fully supported the proposed serial multiple mediator model. Trust in supervisor was indirectly related to job engagement via psychological safety followed by felt obligation. This study provides empirical evidence that trust in supervisor makes employees feel psychologically safe to employ and express their selves in their job roles. This satisfaction of the psychological safety need is interpreted by employees as an important socioemotional benefit that, in turn, makes them feel obligated to pay back to their organization through their enhanced level of job engagement. Implications for theory and practice were discussed. PMID- 29043914 TI - Authors reply to Letter to the Editor- In response to: Comment on Durrani et al."s "Adalimumab for Ocular Inflammation". PMID- 29043915 TI - Corrigendum: Beyond Purity: Moral Disgust Toward Bad Character. AB - Original article: Giner-Sorolla, R., & Chapman, H. A. (2017). Beyond purity: Moral disgust toward bad character. Psychological Science, 28, 80-91. doi:10.1177/0956797616673193 In this article, some effect sizes in the Results section for Study 1 were reported incorrectly and are now being corrected. In the section titled Manipulation Checks: Act and Character Ratings, we reported a d value of 0.32 for the one-sample t test comparing participants' act ratings with the midpoint of the scale; the correct value is 0.30. The sentence should read as follows: Follow-up one-sample t tests using the midpoint of the scale as a test value (because participants compared John with Robert) indicated that the cat beater's actions were judged to be less wrong than the woman beater's actions, t(86) = -2.82, p = .006, d = 0.30. In the section titled Emotion Ratings, we reported a d value of 0.42 for the paired-samples t test comparing relative ratings of facial disgust and facial anger; the correct value is 0.34. In addition, the effect-size statistic is dz rather than d. The sentence should read as follows: As predicted, a paired-samples t test indicated that relative facial disgust ratings ( M = 4.36, SE = 0.21) were significantly different from relative facial-anger ratings ( M = 3.63, SE = 0.20), t(86) = -3.12, p = .002, dz = 0.34; this indicates that the cat-beater and woman-beater scenarios differentially evoked disgust and anger. Later in that section, we reported a d value of 0.21 for the one-sample t test comparing ratings of facial disgust with the midpoint of the scale; the correct value is 0.20. In the same sentence, we reported a d value of 0.21 for the one-sample t test comparing ratings of facial anger with the midpoint of the scale; the correct value is 0.19. The sentence should read as follows: Follow-up one-sample t tests against the midpoint of the scale showed trends in the predicted directions, with higher disgust for the cat beater compared with the woman beater, t(86) = 1.7, p = .088, d = 0.20, and higher anger for the woman beater compared with the cat beater, t(86) = -1.82, p = .072, d = 0.19 (see Fig. 1). These errors do not affect the significance of the results or the overall conclusions for Study 1. PMID- 29043916 TI - South Asian women's coping strategies in the face of domestic violence in the United States. AB - We conducted in-depth telephone interviews with a convenience sample of 20 South Asian women experiencing domestic violence in the United States. Utilizing the emotion-focused and problem-focused coping framework, the researchers analyzed the narratives of abused South Asian women. Emotion-focused coping strategies include (a) spirituality and/or religion and (b) the role of children. Problem focused coping strategies include (c) informal and formal support and (d) strategies of resisting, pacifying, safety planning. Implications for practice and future research in the United States and internationally are discussed. PMID- 29043917 TI - Parenting and Adolescents' Depressive Symptoms: The Mediating Role of Future Time Perspective. AB - This study investigated the relations between maternal and paternal rearing practices and adolescents' depressive symptoms, and whether time perspective in adolescence explains these links. The sample included 306 students (158 girls), aged between 10.83 and 14.42 years. Adolescents completed questionnaires assessing their perceptions of maternal and paternal acceptance and psychological control, and of their future time perspective and depressive symptoms. Adolescents who rated their mothers as more accepting and those who rated their fathers as less psychologically controlling also reported lower levels of depressive symptoms and greater future time perspective. Further, adolescents who had greater future time perspective reported lower levels of depressive symptoms. Finally, time perspective partially mediated the relations of maternal and paternal acceptance, and paternal control with depressive symptoms in adolescence. The findings highlight the unique relations of maternal acceptance and paternal psychological control with adolescents' depressive symptoms, and that future time perspective is one mechanism that might explain why parenting strategies are linked with depressive symptoms in adolescence. PMID- 29043918 TI - "Being able to speak": What individuals in jail perceived as helpful about participating in alcohol-related brief interventions. AB - BACKGROUND: A significant proportion of individuals within the criminal justice system meet criteria for a substance use disorder. Treatments for individuals who are incarcerated with substance use disorders show minimal to no benefit on postrelease outcomes, suggesting a need to improve their effectiveness, particularly those that can be delivered in a brief format. The purpose of this study was to describe what individuals in jail with substance use disorders perceived as being helpful about 2 brief alcohol-focused interventions, which can be used to inform future treatments with this population. METHODS: Data came from a parent study where 58 individuals in jail with substance use disorders received either a motivational or educational intervention focused on alcohol and other substance use and then completed a questionnaire assessing what was most and least helpful about the interventions. Qualitative responses were coded using a grounded theory approach. RESULTS: Results indicated that participants from both interventions reported that receiving individualized attention and talking one-on one with someone was helpful, and that the interventions were encouraging and elicited hope. There also were specific components from each intervention that participants said were beneficial, including the opportunity to discuss plans for postrelease and to learn about addiction from psychoeducational videos. Participants noted areas for improving future interventions. Suggestions from participants were to offer tangible resources upon release, make session lengths flexible, and reduce assessment burden during research interviews. CONCLUSIONS: Findings align with established approaches for working with marginalized groups, namely, community-based participatory research methods and shared decision-making models for treatment. This study provided a voice to individuals in jail with substance use disorders, a group often underrepresented in the literature, and may offer an initial look at how to improve treatments for this high-risk population. PMID- 29043919 TI - Beyond survival: 5-year neurodevelopmental follow-up of a cohort of preterm infants in Colombo, Sri Lanka. AB - BACKGROUND: There is a lack of information on long-term neurodevelopmental outcome in preterm neonates in low- and middle-income countries. OBJECTIVES: To describe the developmental attainments of preterm neonates followed up for 5 years and to identify the risk factors for impairment. METHOD: A prospective descriptive cohort study was undertaken in neonates of 34 weeks gestation born within a period of 12 months at a single tertiary maternity and neonatal unit in Colombo, Sri Lanka. Infants were assessed for neurodevelopment using the Bayley Infant and Toddler III(r) Assessments at 6, 12 and 24 months of corrected age and school readiness assessment at 5 years. RESULTS: Fifty-one infants were assessed at least once, 45 were assessed at 2 years and 39 had a final assessment at 5 years. Neurodevelopmental attainment deteriorated significantly in the cognitive and motor composite scores from 6 to 24 months (p < 0.05). By 5 years the number of children with delay in cognitive, language and motor domains had reduced significantly from 24 months (p < 0.05) but the cognitive skills remained most affected (10/39). At 5 years, 13 of 39 children had a confirmed diagnosis of a neurodevelopmental disorder: eight had attention deficit hyperactivity disorder, three autism spectrum disorder, one cerebral palsy and one visual impairment. Surfactant administration and retinopathy of prematurity were the most significant risks for delayed development at 5 years (p < 0.05). CONCLUSION: Deterioration of cognitive and motor composite scores over the first 24 months highlights the need for regular surveillance of premature infants. There was a discrepancy between the diagnosis of neurodevelopmental delay at 24 months and at 5 years. But the notable impact on school readiness skills requires public health initiatives to cater for the needs of these children. PMID- 29043920 TI - Simultaneity of leisure behaviors and common mental disorders among healthcare workers. AB - The objective of this study was to investigate the aggregation of four leisure behaviors and the association between the number of leisure behaviors and common mental disorders (CMD). A cross-sectional study was carried out with a representative sample of healthcare workers of Brazil. The aggregation of the types of leisure activities was assessed by comparing the observed prevalence with the expected prevalence. The logistic regression analysis evaluated the association between the number of leisure behaviors and CMD. Leisure behaviors tended to show aggregation (<0.05). The multivariate analysis showed a negative association between the number of leisure behaviors and the CMD, only among women. The results indicate that the association between the number of leisure behaviors and the CMD is different depending on sex. PMID- 29043921 TI - Adaptation of the Barkin scale of maternal functioning and examination of the psychometric properties. AB - Evaluation of the maternal function is important not only for the mother and the baby but for the family health, as well. The aim of the researchers was to examine the Barkin Index of Maternal Function (BIMF) to Turkish Culture. Two hundred thirty-five postpartum women participated in the study. As a result of exploratory factor analysis of the scale, we decided that it should be 5-factor. Fit indexes of confirmatory factor analysis (CFA) were determined as Root Mean Square Error of Approximation (RMSEA) 0.05, Non-normed Fit Index (NNFI) 0.94, Comparative Fit Index (CFI) 0.96, and Goodness of Fit Index (GFI) 0.91. Overall, Cronbach's alpha reliability coefficient of the scale was 0.73. BIMF was determined as a reliable and valid tool for Turkish society. Since giving birth to a baby is related not only with the new mother but also with her relatives, it is one of the biggest change eras in a woman's life. This new era brings new changes into the mother's life in terms of physical, psychological, social, and spiritual aspects. PMID- 29043922 TI - Barriers and facilitators to dispensing of intranasal naloxone by pharmacists. AB - BACKGROUND: Although misuse of prescription opioids has reached epidemic proportions, pharmacy-based preventive services to combat this epidemic are limited. The aims of this study were to identify barriers and facilitators to the dispensing of intranasal naloxone (INN) by pharmacists in New Mexico. METHODS: For this mixed-methods study, a qualitative component (focus group) informed the development of a quantitative component (electronic survey) distributed to all pharmacists registered with the New Mexico Board of Pharmacy and practicing in the state. A 46-item survey included questions about pharmacists' concerns regarding dispensing INN, barriers and facilitators to dispensing INN, efforts needed to increase availability and utilization of pharmacist-dispensed INN, and characteristics of respondents and their pharmacies. RESULTS: Pharmacists from all geographical regions and all types of pharmacy settings were represented in the sample (final N = 390, participation rate 23.5%, including a subset of 182 community pharmacists). The main barriers identified were (1) out-of-pocket costs for patients; (2) time constraints for pharmacists; and (3) inadequate reimbursement for pharmacists. The main facilitators were (1) increased awareness among opioid-using patients and family members about the need for INN; (2) additional education to the general public; and (3) additional training for pharmacists on how to initiate discussions about INN with high-risk patients. Some community pharmacists were concerned that INN dispensing would promote opioid abuse (16.5%) and attract undesirable clientele (14.3%). In a multivariable logistic regression analysis of a community pharmacy subset, a higher number of concerns about INN (odds ratio [OR] = 0.87; 95% confidence interval [CI]: 0.82-0.93) and a pharmacy setting in a chain grocery or a "big box" store (OR = 0.38; 95% CI: 0.16-0.92) were associated with decreased odds of dispensing INN. CONCLUSIONS: Effective intervention strategies for increasing dispensing of intranasal naloxone by pharmacists should focus on pharmacists' concerns, include education to multiple audiences, and address provider-level, system-level, and society-level barriers. PMID- 29043925 TI - Filipino therapists' experiences and attitudes of interprofessional education and collaboration: A cross-sectional survey. AB - For the past more than 50 years, the World Health Organisation has acknowledged through empirical findings that health workers that learn together work together effectively to provide the best care for their patients. This study aimed to: (1) describe the perceived extent of interprofessional education (IPE) experience among Filipino occupational therapists (OTs), physical therapists (PTs), and speech-language-pathologists (SLPs); (2) identify their attitudes towards interprofessional collaboration (IPC); and (3) compare their attitudes towards IPC according to: prior IPE experience, classification of IPE experience, profession, years of practice, and practice setting. Using a cross-sectional survey design, a two-part questionnaire was sent to Filipino OTs, PTs, and SLPs working in the Philippines via an online survey application. The first part of the survey contained eight items of demographic information and the second part contained the 14-item Attitudes Towards Health Care Teams Scale (ATHCTS). Findings revealed that among the Filipino OT, PT and SLP respondents (n = 189), 70.9% had prior experience on IPE. Moreover, the three most commonly used IPE teaching-learning strategies were case discussion (clinical setting), small group discussion, didactics, and case discussion (community setting), while the use of didactics and case discussion (community setting) yielded more agreeable attitudes towards IPC. Among the 14 items in the ATHCTS, 11 were rated with agreeability and three items with neutrality. For professional variables, only the practice setting variable yielded a statistically significant finding confirming those working in the academia to be more agreeable towards IPC compared to other settings. However, years of practice and professional background variables both yielded no statistically significant difference implying no association between years of practice and attitude towards IPC and a homogenous composition among respondents, respectively. The results of this research are to springboard IPE initiatives within Philippine higher education institutions to enable evidence-based IPC approaches in clinical practice. PMID- 29043926 TI - Efficient induction of apoptosis in cancer cells by paclitaxel-loaded selenium nanoparticles. AB - AIM: To develop selenium nanoparticles (SeNPs)-based delivery systems for paclitaxel (PTX) and assess their antiproliferative efficacy against cancer cells in vitro with potential mechanistic insight. METHODS: Pluronic F-127 stabilized SeNPs were prepared and characterized. Effects of PTX-loaded SeNPs on lung (A549), breast (MCF7), cervical (HeLa) and colon (HT29) cancer cells were studied by viability assay complemented with flow-cytometric analyses of cell cycle, apoptosis, mitochondrial membrane potential, intracellular reactive oxygen species and caspase activity. RESULTS: PTX-loaded SeNPs demonstrated significant antiproliferative activity against cancer cells. Cell cycle analyses of PTX-SeNPs treated cells established G2/M phase arrest in a dose-dependent manner leading to apoptosis. Further investigation revealed disruption of mitochondrial membrane potential orchestrated with induction of reactive oxygen species leading to the activation of caspases, key players of apoptotic cell death. CONCLUSION: Efficient induction of apoptosis in various cancer cells by PTX-loaded SeNPs, with appropriate future studies, might lead to potential anticancer strategies. PMID- 29043927 TI - A Comparative Pharmacokinetic Assessment of a Novel Highly Bioavailable Curcumin Formulation with 95% Curcumin: A Randomized, Double-Blind, Crossover Study. AB - OBJECTIVE: Curcumin exhibits many beneficial health-promoting characteristics. However, its poor oral absorption precludes its general use. This study assessed the bioavailability of a novel curcumin formulation compared to 95% curcumin and published results for various other curcumin formulations. METHODS: A randomized, crossover, double-blind, comparator-controlled pharmacokinetic study was performed in 12 healthy adult subjects to determine the appearance of free curcumin and its metabolites curcumin sulfate and curcumin glucuronide in plasma after a single dose of a novel proprietary curcumin liquid droplet micromicellar formulation (CLDM) and unformulated 95% curcumin powder in capsule form. An equivalent 400-mg dose of each product was administered. The 95% curcumin contained 323 mg curcumin, and the CLDM contained 64.6 mg curcumin. Blood samples were drawn and plasma was analyzed for curcumin and its 2 conjugates without enzymatic hydrolysis by liquid chromatography-tandem mass spectroscopy. RESULTS: Plasma levels of curcumin sulfate and curcumin glucuronide after 1.5 hours from CLDM were approximately 20 and 300 ng/mL, respectively, whereas the levels for 95% curcumin were near baseline. Free curcumin reached a maximum level of 2 ng/mL for CLDM and 0.3 ng/mL for 95% curcumin at 1.5 hours. For the CLDM, a small secondary free curcumin peak occurred at 12 hours and a tertiary 1.5-ng/mL peak occurred at 24 hours. The total curcumin absorbed as represented by the area under the curve (AUC)/mg administered curcumin for CLDM was 522 times greater than for the 95% curcumin. CONCLUSIONS: The novel CLDM formulation facilitates absorption and produces exceedingly high plasma levels of both conjugated and total curcumin compared to 95% curcumin. A comparison of the Cmax/mg curcumin and AUC/mg of administered curcumin for CLDM with data from pharmacokinetic studies of various enhanced absorption formulations indicate that the greatest absorption and bioavailability are produced with the novel CLDM formulation. PMID- 29043928 TI - Using transcranial direct current stimulation to treat symptoms in mild cognitive impairment and Alzheimer's disease. AB - Transcranial direct current stimulation (tDCS) has recently been investigated as a potential nonpharmacological treatment for individuals with mild cognitive impairment (MCI) and Alzheimer's disease (AD). A comprehensive literature search was performed on tDCS studies published until March 2017 using MEDLINE, Embase and PsychINFO databases. 12 articles with a total of 202 MCI or AD participants were included. Although ten of the 12 studies demonstrated positive findings with tDCS, two studies reported no effect on cognition. There was a wide range of methodological approaches used and in the cognitive functions measured. The variability in treatment response may be related to the heterogeneity in stimulation parameters including the site of stimulation, and cognitive assessments used. Patient-related factors including individual psychological, biological, and physiological status at the time of stimulation may also influence treatment response. We recommend that more comparative studies using similar patient factors and study parameters are needed in order to better understand the efficacy of tDCS in MCI and AD. PMID- 29043929 TI - A survey-based study identifies common but unrecognized symptoms in a large series of juvenile Huntington's disease. AB - AIM: The symptoms of Huntington's disease are well known, yet the symptoms of juvenile Huntington's disease (JHD) are less established due to its rarity. The study examined a cluster of symptoms considered to be common, but under recognized in JHD: pain, itching, sleeping difficulties, psychosis and tics. MATERIALS & METHODS: A symptom survey was constructed using the online tool Qualtrics and dispersed to JHD caregivers through websites. RESULTS: A total of 33 surveys were completed. Disrupted sleep was the most prevalent symptom (87%), followed by tics (78%), pain (69%), itching (60%) and psychosis (39%). CONCLUSION: Despite limitations, the study supports that there are symptoms in the JHD population that are not considered classic, however, are common and significant for patients and caregivers. PMID- 29043930 TI - Associations Among Fatty Acids, Desaturase and Elongase, and Insulin Resistance in Children. AB - OBJECTIVES: Fatty acid profiles and desaturase (SCD-16, SCD018, D5D, D6D) and elongase (ELOVL6) enzyme activity have been associated with adiposity and metabolic disease. While this has been studied in adults, few studies have included children. The objective of this study was to evaluate these markers in children and identify relationships with markers of metabolic health. It was hypothesized that these lipid markers would be correlated to adiposity and metabolic disease. METHODS: This study was a cross-sectional analysis of fourth- and fifth-grade children (n = 86, aged 9-12) participating in a comprehensive nutrition program. Any student enrolled in the program was eligible for inclusion in this study. Fasting plasma was collected and analyzed for total fatty acids, glucose, insulin, and full lipid panels. Insulin resistance was estimated using calculated homeostatic model assessment for insulin resistance (HOMA-IR) values. RESULTS: There were no differences in lipid markers, glucose, insulin, or HOMA-IR among children classified as normal weight, overweight, or obese. SCD-16, D5D, and ELOVL6 activity was significantly correlated to HOMA-IR values (r = 0.39, p = 0.001; r = -0.33, p = 0.006; r = -0.37, p = 0.005, respectively). In regression analysis, body mass index for age percentile, D6D activity, ELOVL6 activity, and systolic blood pressure were the most significant predictors of HOMA-IR values (adjusted r2 = 0.39, p <= 0.001). CONCLUSIONS: There was no relationship between these lipid markers and adiposity in this population; however, there were correlations with HOMA-IR. Regardless of adiposity, there may be underlying changes in fatty acid and lipid metabolism associated with the development of metabolic diseases. PMID- 29043932 TI - Information Needs Assessment for K-12 School Nurses in Rural Eastern Washington State. AB - School nurses are an often-overlooked population of health care professionals who have great importance in rural communities where access to health care is limited. In order to better serve school nurses in rural eastern Washington, an assessment was conducted to determine their information needs, behaviors, and perceptions. Results indicated this population of school nurses searches for multiple types of health information on a daily basis and navigates obstacles to information access using a variety of resources. While largely confident in their searching ability, they are open to learning more about how to find reliable health information to support their daily responsibilities. These results will guide the development of a workshop for school nurses about using reliable health information resources to improve health care in their rural communities. PMID- 29043933 TI - Trip Database: Turning Research into Practice for Evidence-Based Care. AB - Trip Database is a freely available search engine based in the United Kingdom. Trip directs users to journal articles, practice guidelines, and other research to support evidence-based medical practice. This column includes sample searches in both the free version and in the subscription Pro version. PMID- 29043935 TI - An Analysis of Physician Assistant LibGuides: A Tool for Collection Development. AB - The Physician Assistant (PA) specialty encompasses many subject areas and requires many types of library resources. An analysis of PA LibGuides was performed to determine most frequently recommended resources. A sample of LibGuides from U.S. institutions accredited by the Accreditation Review Commission on Education for the Physician Assistant (ARC-PA) was included in this study. Resources presented on guides were tabulated and organized by resource type. Databases and point-of-care tools were the types of resources listed by the most LibGuides. There were over 1,000 books listed on the 45 guides, including over 600 unique books listed. There were fewer journals listed, only 163. Overall, while the 45 LibGuides evaluated list many unique resources in each category, a librarian can create an accepted list of the most frequently listed resources from the data gathered. PMID- 29043936 TI - Providing Health Sciences Services in a Joint-Use Distributed Learning Library System: An Organizational Case Study. AB - The purpose of this organizational case study is to describe the complexities librarians face when serving a multi-campus institution that supports both a joint-use library and expanding health sciences academic partnerships. In a system without a centralized health science library administration, liaison librarians are identifying dispersed programs and user groups and collaborating to define their unique service and outreach needs within a larger land-grant university. Using a team-based approach, health sciences librarians are communicating to integrate research and teaching support, systems differences across dispersed campuses, and future needs of a new community-based medical program. PMID- 29043940 TI - Using Maps to Promote Data-Driven Decision-Making: One Library's Experience in Data Visualization Instruction. AB - Data play a crucial role in health research, education, and patient care. Initiatives such as Big Data to Knowledge (BD2K) and Precision Medicine point to the increasing focus and value of data use and reuse. As the universe of data continues to grow exponentially, health education needs to provide students with practical hands-on learning sessions that illustrate the multitude of uses for data and statistics. Giving students early exposure to data reuse provides a solid background for the more complex data they may gather later in their education. This column describes how librarians at a general academic library used data dashboards and Tableau in two library sessions to provide students with hands-on experience in data visualization and its role in decision-making. PMID- 29043938 TI - Piloting Consumer Health Information Services in Collaboration with a Community Research Engagement Program. AB - At an academic health science center, librarians partnered with a community research engagement program to offer a suite of consumer health information services. The services included training staff in the use of online consumer health resources, purchasing a print collection of monographs, and creating a guide to both the online and print resources for staff use. Focus groups were conducted to assess information needs, and the workshop attendees' online health information competency was assessed presession and postsession. This article details planning and intervention efforts, and proposes future activities to meet the information needs of HealthStreet and its clients. PMID- 29043942 TI - The Librarian's Contribution to Continuing Medical Education. AB - At many hospitals, including Robert Wood Johnson (RWJ) University Hospital Rahway, librarians facilitate continuing medical education (CME) programs, sometimes working in that capacity as much as in their traditional librarian functions such as reference, research, cataloging, and bibliographic instruction. This column traces the relationship between the two aspects of the RWJ Rahway's CME coordinator and health sciences librarian's job to demonstrate that, because of their duties and skills, medical librarians can meaningfully contribute to hospitals' CME programs. The worlds of librarianship and CME are further connected by the same goal: the dissemination of information. PMID- 29043943 TI - Creating a Role for Embedded Librarians Within an Active Learning Environment. AB - In 2013, the librarians at a small academic health sciences library reevaluated their mission, vision, and strategic plan to expand their roles. The school was transitioning to a new pedagogical culture and a new building designed to emphasize interprofessional education and active learning methodologies. Subsequent efforts to implement the new strategic plan resulted in the librarians joining curriculum committees and other institutional initiatives, such as an Active Learning Task Force, and participating in faculty development workshops. This participation has increased visibility and led to new roles and opportunities for librarians. PMID- 29043944 TI - Courting Apocalypse: Creating a Zombie-Themed Evidence-Based Medicine Game. AB - In 2015, two librarians at the Hardin Library for the Health Sciences at the University of Iowa turned their dreams into a reality and secured funding to build a zombie-themed evidence-based medicine game. The game features a "choose your own adventure" style that takes students through a scenario where a disease outbreak is taking place and a resident is asked to use evidence-based medicine skills to select a screening and diagnostic tool to use on potentially infected patients. Feedback on the game has been positive, and future plans include building additional modules on therapy, harm, and prognosis. PMID- 29043945 TI - Merging Technology and Emotions: Introduction to Affective Computing. AB - Affective computing technologies are designed to sense and respond based on human emotions. This technology allows a computer system to process the information gathered from various sensors to assess the emotional state of an individual. The system then offers a distinct response based on what it "felt." While this is completely unlike how most people interact with electronics today, this technology is likely to trickle into future everyday life. This column will explain what affective computing is, some of its benefits, and concerns with its adoption. It will also provide an overview of its implication in the library setting and offer selected examples of how and where it is currently being used. PMID- 29043946 TI - Assessing the dimensionality of YFHS-Swe: a questionnaire to assess youth friendliness in differentiated health services. AB - The aim of this study was to assess the dimensionality of YFHS-Swe and identify possible unique factors in the evaluation of youth-friendliness. YFHS-Swe was answered by 1110 youths aged 16 to 25 years visiting youth clinics in Northern Sweden. Thirteen factors were identified by exploratory factor analysis and except for one factor they all proved to fit well and have good reliability when assessed by the confirmatory factor analysis. The YFHS-Swe proved to be credible and suitable for assessing youth-friendliness of differentiated health services in Sweden. With cultural and linguistic adaptations, it can be used in similar settings internationally. PMID- 29043947 TI - Outpatient continuing care after residential substance use disorder treatment in the US Veterans Health Administration: Facilitators and challenges. AB - BACKGROUND: In the U.S. Veterans Health Administration (VHA), residential treatment programs are an important part of the continuum of care for patients with substance use disorders (SUDs). Outpatient continuing care after residential treatment helps maintain early recovery and treatment gains. Knowing more about the drivers of variation in continuing care practices and performance across residential programs might inform quality improvement efforts. METHODS: Metrics of continuing care were operationalized and calculated for each of VHA's 63 SUD Residential Rehabilitation Treatment Programs (SUD RRTPs) and 34 Mental Health Residential Rehabilitation Treatment Programs (MH RRTPs) with a SUD track in fiscal year 2012. Management and frontline staff of these programs were then interviewed to learn what factors might contribute to high or low program performance on the metrics compared with national averages. RESULTS: Among SUD RRTPs, the mean rate of outpatient SUD/MH continuing care was 59% within 7 days and 80% within 30 days, and the mean rate of SUD continuing care was 63% within 30 days. Among MH RRTPs with a SUD track, these rates were 56%, 75%, and 36%, respectively. There was substantial variability in continuing care rates across the 97 programs: 21%-93% for SUD/MH care within 7 days, 36%-100% for SUD/MH care within 30 days, and 4%-91% for SUD care within 30 days. Interviews with representatives of 44 programs revealed key facilitators of continuing care: accountability of program staff, predischarge scheduling, predischarge introductions to continuing care providers, strong patient relationships, accessibility, and persistent emphasis. Key challenges included inadequate program staffing, lack of program staff accountability, and poor accessibility. CONCLUSIONS: Wide variation in continuing care rates across programs and identification of common facilitators at high-performing programs suggest substantial opportunity for improvement for programs with lower performance. PMID- 29043948 TI - Editorial: Alzheimer's Disease: From Molecular Mechanisms to Psychobiological Perspectives. PMID- 29043949 TI - ARTHROSCOPIC SURGERY FOR KNEE OSTEOARTHRITIS: IMPACT OF HEALTH TECHNOLOGY ASSESSMENT IN GERMANY. AB - OBJECTIVES: This study aims to describe how a negative reimbursement decision based on the health technology assessment (HTA) report of a nondrug intervention affects healthcare providers in Germany. METHODS: Knee arthroscopy was chosen as an example, because as of April 2016 this procedure is no longer reimbursed for osteoarthritis, but is still covered for other indications, including meniscal lesions. The exclusion followed an HTA report prepared by the Institute for Quality and Efficiency in Health Care (IQWiG). Here, we examine how the decision to revoke reimbursement for arthroscopy was perceived by the surgical community. Information was collected from official hospital statistics, the internet, and informal interviews with orthopedic surgeons. RESULTS: In 2015, a total of 37,920 arthroscopic procedures were performed for knee osteoarthritis in Germany. Several surgical societies were unhappy with the negative decision, which was issued as a directive in November 2015, and they challenged the decision-making process as well as the underlying scientific evidence. In March 2016, fifteen societies issued joint recommendations on how to differentiate osteoarthritis from other knee diseases and how to document other diseases in a way that inspections by representatives of health insurance funds would not detect any deficiencies. In informal interviews, orthopedic surgeons indicated that miscoding of the principal diagnosis (meniscal tear rather than knee osteoarthritis) is to be expected, especially in the hospital sector. CONCLUSIONS: HTA can have a significant impact on the provision of health services, but various loopholes allow physicians to undermine policy decisions. Therefore, it is important to involve all stakeholders in HTA and to convince them of the benefits of evidence-based medicine. PMID- 29043950 TI - Mangrovitalea sediminis gen. nov., sp. nov., a member of the family Alteromonadaceae isolated from mangrove sediment. AB - A Gram-stain-negative, facultative anaerobic and oligotrophic, rod-shaped, and motile with single polar flagellum bacterial strain, designed M11-4T was isolated from mangrove sediment in Yunxiao Mangrove National Nature Reserve, China. Growth was observed at temperatures from 10 to 40 degrees C (optimum 30 degrees C), at salinities from 0.5 to 6 % (optimum 2-3 %), and at pH from 5 to 8 (optimum 6). Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain M11-4T shared highest sequence similarity with the genus Marinobacter(92.5-95.0 %) and represented a distinct phylogenetic lineage in the family Alteromonadaceae. The G+C content of the genomic DNA was 58.2 mol%. The dominant fatty acids were C16 : 0, C16 : 0 N-alcohol, summed feature 9 (comprising iso-C17 : 1omega9c and/or C16 : 0 10-methyl) and summed feature 3 (comprising C16 : 1omega7c and/or C16 : 1omega6c). The predominant respiratory quinone was ubiquinone-9 and the major polar lipids were diphosphatidylglycerol; phosphatidylethanolamine; phosphatidylglycerol and an unidentified aminophospholipid. According to its morphology, physiology, fatty acid composition and 16S rRNA gene sequence analysis, the strain M11-4T should be assigned as a novel species of a novel genus for which the name Mangrovitalea sediminis gen. nov., sp. nov. is proposed. The type strain of Mangrovitalea sediminis is M11-4T (=MCCC 1K03312T=JCM 32104T). PMID- 29043951 TI - Verrucosispora endophytica sp. nov., isolated from the root of wild orchid (Grosourdya appendiculata (Blume) Rchb.f.). AB - A novel endophytic filamentous bacterium strain A-T 7972T, was isolated from wild orchid Grosourdya appendiculata (Blume) Rchb.f. collected in Thailand. The bacterium developed single non-motile spores with warty surface on substrate mycelia. The taxonomic position was described using a polyphasic approach. The 16S rRNA gene sequence and phylogenetic analysis indicated that strain A-T 7972T belonged to the genus Verrucosispora and shared the highest sequence similarity with V. lutea YIM 013T (98.71 %) and V. gifhornensis DSM 44337T (98.53 %). The values of DNA-DNA relatedness that distinguished this novel strain from its closest species were below 70 %. The cell-wall peptidoglycan contained meso diaminopimelic acid. The whole-cell sugars were mannose, ribose, glucose and xylose. The predominant menaquinone was MK-9(H4). The predominant fatty acids were branched fatty acids iso-C15 : 0 and iso-C16 : 0. The diagnostic phospholipids profile consisted of phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylinositol and phosphatidylinositol mannosides. The G+C content of the genomic DNA was 70.5 mol%. Based on its phenotypic, chemotaxonomic and genotypic characteristics, the new isolate A-T 7972T (=BCC 50981T=TBRC 6031T=NBRC 112512T) is proposed to be the type strain of novel species, Verrucosispora endophytica sp. nov. PMID- 29043952 TI - Tenacibaculum agarivorans sp. nov., an agar-degrading bacterium isolated from marine alga Porphyra yezoensis Ueda. AB - A novel Gram-stain-negative, aerobic, rod-shaped, non-flagellated and agar digesting marine bacterium, designated as HZ1T, was isolated from the marine alga Porphyra yezoensis Ueda (AST58-103) collected from the coastal area of Weihai, PR China. Phylogenetic analysis based on 16S rRNA gene sequences placed HZ1T in the genus Tenacibaculum, and it formed a distinct clade in the phylogenetic tree with the type strains of Tenacibaculum amylolyticum and Tenacibaculum skagerrakense, with 97.0 % and 96.7 % 16S rRNA gene sequence similarities, respectively. The DNA G+C content of the isolate was 31.8 mol%. HZ1T contained MK-6 as the predominant menaquinone and iso-C15 : 0, summed feature 3 (C16 : 1omega7c and/or C16 : 1omega6c), iso-C17 : 0 3-OH and iso-C15 : 1G as the major fatty acids. The major polar lipids were phosphatidylethanolamine, four unidentified lipids and five unidentified aminolipids. On the basis of the results of the phylogenetic analysis and phenotypic properties, it is concluded that HZ1T represents a novel species of the genus Tenacibaculum, for which the name Tenacibaculumagarivorans sp. nov. is proposed. The type strain is HZ1T (=MCCC 1H00174T=KCTC 52476T). PMID- 29043953 TI - Nonomuraea glycinis sp. nov., a novel actinomycete isolated from the root of black soya bean [Glycine max (L.) Merr]. AB - A novel actinomycete, designated strain NEAU-BB2C19T, was isolated from the root of black soya bean [Glycine max (L.) Merr] collected from Harbin, Heilongjiang Province, China, and characterized using a polyphasic approach. The strain was an aerobic, Gram-stain-positive actinomycete that formed extensively branched substrate mycelium and aerial hyphae. The predominant menaquinones were MK-9(H2) and MK-9(H0). The major cellular fatty acid profile consisted of iso-C16 : 0, 10 methyl C17 : 0 and 10-methyl C18 : 0. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylethanolamine, hydroxy phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside, phosphatidylglycerol and glycolipid. The DNA G+C content was 68.2+/-0.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NEAU BB2C19T should be assigned to the genus Nonomuraea and formed a distinct branch with its closest neighbour Nonomuraea guangzhouensis NEAU-ZJ3T (98.75 % 16S rRNA gene sequence similarity). The morphological and chemotaxonomic properties of the strain were also consistent with those of members of the genus Nonomuraea. A combination of DNA-DNA hybridization results and some phenotypic characteristics indicated that strain NEAU-BB2C19T could be clearly differentiated from its closest phylogenetic relative. Thus, the strain is concluded to represent a novel species of the genus Nonomuraea, for which the name Nonomuraea glycinis sp. nov. is proposed. The type strain is NEAU-BB2C19T (=CGMCC 4.7430T=DSM 104838T). PMID- 29043956 TI - The amino-terminal domain of ELL transcription elongation factor is essential for ELL function in Schizosaccharomyces pombe. AB - Transcriptional elongation is a critical step for regulating expression of protein-coding genes. Multiple transcription elongation factors have been identified in vitro, but the physiological roles of many of them are still not clearly understood. The ELL (Eleven nineteen Lysine rich Leukemia) family of transcription elongation factors are conserved from fission yeast to humans. Schizosaccharomyces pombe contains a single ELL homolog (SpELL) that is not essential for its survival. Therefore to gain insights into the in vivo cellular functions of SpELL, we identified phenotypes associated with deletion of ell1 in S. pombe. Our results demonstrate that SpELL is required for normal growth of S. pombe cells. Furthermore, cells lacking ell1+ exhibit a decrease in survival when exposed to DNA-damaging conditions, but their growth is not affected under environmental stress conditions. ELL orthologs in different organisms contain three conserved domains, an amino-terminal domain, a middle domain and a carboxyl terminal domain. We also carried out an in vivo functional mapping of these conserved domains within S. pombe ELL and uncovered a critical role for its amino terminus in regulating all its cellular functions, including growth under different conditions, transcriptional elongation potential and interaction with S. pombe EAF. Taken together our results suggest that the domain organization of ELL proteins is conserved across species, but the in vivo functions as well as the relationship between the various domains and roles of ELL show species specific differences. PMID- 29043954 TI - N-acetylglucosamine affects Cryptococcus neoformans cell-wall composition and melanin architecture. AB - Cryptococcus neoformans is an environmental fungus that belongs to the phylum Basidiomycetes and is a major pathogen in immunocompromised patients. The ability of C. neoformans to produce melanin pigments represents its second most important virulence factor, after the presence of a polysaccharide capsule. Both the capsule and melanin are closely associated with the fungal cell wall, a complex structure that is essential for maintaining cell morphology and viability under conditions of stress. The amino sugar N-acetylglucosamine (GlcNAc) is a key constituent of the cell-wall chitin and is used for both N-linked glycosylation and GPI anchor synthesis. Recent studies have suggested additional roles for GlcNAc as an activator and mediator of cellular signalling in fungal and plant cells. Furthermore, chitin and chitosan polysaccharides interact with melanin pigments in the cell wall and have been found to be essential for melanization. Despite the importance of melanin, its molecular structure remains unresolved; however, we previously obtained critical insights using advanced nuclear magnetic resonance (NMR) and imaging techniques. In this study, we investigated the effect of GlcNAc supplementation on cryptococcal cell-wall composition and melanization. C. neoformans was able to metabolize GlcNAc as a sole source of carbon and nitrogen, indicating a capacity to use a component of a highly abundant polymer in the biospherenutritionally. C. neoformans cells grown with GlcNAc manifested changes in the chitosan cell-wall content, cell-wall thickness and capsule size. Supplementing cultures with isotopically 15N-labelled GlcNAc demonstrated that the exogenous monomer serves as a building block for chitin/chitosan and is incorporated into the cell wall. The altered chitin-to-chitosan ratio had no negative effects on the mother-daughter cell separation; growth with GlcNAc affected the fungal cell-wall scaffold, resulting in increased melanin deposition and assembly. In summary, GlcNAc supplementation had pleiotropic effects on cell wall and melanin architectures, and thus established its capacity to perturb these structures, a property that could prove useful for metabolic tracking studies. PMID- 29043955 TI - Lactobacillus allii sp. nov. isolated from scallion kimchi. AB - A novel strain of lactic acid bacteria, WiKim39T, was isolated from a scallion kimchi sample consisting of fermented chili peppers and vegetables. The isolate was a Gram-positive, rod-shaped, non-motile, catalase-negative and facultatively anaerobic lactic acid bacterium. Phylogenetic analysis of the 16S rRNA gene sequence showed that strain WiKim39T belonged to the genus Lactobacillus, and shared 97.1-98.2 % pair-wise sequence similarities with related type strains, Lactobacillus nodensis, Lactobacillus insicii, Lactobacillus versmoldensis, Lactobacillus tucceti and Lactobacillus furfuricola. The G+C content of the strain based on its genome sequence was 35.3 mol%. The ANI values between WiKim39T and the closest relatives were lower than 80 %. Based on the phenotypic, biochemical, and phylogenetic analyses, strain WiKim39T represents a novel species of the genus Lactobacillus, for which the name Lactobacillus allii sp. nov. is proposed. The type strain is WiKim39T (=KCTC 21077T=JCM 31938T). PMID- 29043957 TI - Rhodosalinus sediminis gen. nov., sp. nov., isolated from marine saltern. AB - A novel Gram-stain-negative, moderately halophilic, motile, facultatively anaerobic and rod-shaped strain, designated WDN1C137T, was isolated from a marine saltern at Wendeng, PR China. Optimal growth occurred at 40 degrees C, pH 7.5 and with 7.0 % (w/v) NaCl. Q-10 was the sole respiratory quinone. The major cellular fatty acids (>10.0 %) in WDN1C137T were C18 : 1omega7c (46.2 %), cyclo C19 : 0omega8c (18.7 %) and C16 : 0 (12.3 %). The major polar lipids were phosphatidylglycerol, phosphoglycolipid, phosphatidylcholine, one unidentified glycolipid, one unidentified lipid, one unidentified aminolipid and two unidentified phospholipids. The genomic DNA G+C content was 70.9 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that WDN1C137T shared the highest similarity (94.5 %) to Roseivivax jejudonensis KCTC 42110T, followed by Roseivivax halodurans JCM 10272T (94.2 %) and Roseivivax roseus DSM 23042T (94.1 %). WDN1C137T formed a separate branch from the closely related genera Roseivivax, Loktanella, Paracoccus and Cribrihabitans within the family Rhodobacteraceae, which indicated that it represented a novel genus in the phylogenetic tree. On the basis of the data from the current polyphasic study, the isolate is proposed to represent a novel species of a novel genus within the family Rhodobacteraceae, with the name Rhodosalinus sediminis gen. nov., sp. nov. The type strain of the type species is WDN1C137T (=KCTC 52478T=MCCC 1H00170T). PMID- 29043958 TI - Oceaniglobus indicus gen. nov., sp. nov., a member of the family Rhodobacteraceae isolated from surface seawater. AB - A Gram-stain-negative, non-motile, aerobic and heterotrophic strain, designated 1 19bT, was isolated from surface seawater in the Indian Ocean. The cells were ovoid or coccus (0.8-1.0 um in diameter) with no flagellum. Activities of catalase and oxidase were positive. Growth was observed at salinity of 0.5-10 (%NaCl, w/v) with an optimum of 3-4, at pH 5-10 with an optimum of 7-8, and at 5 37 degrees C with an optimum of 28-35 degrees C. It accumulated poly-beta hydroxybutyrate granules inside the cell. Bacteriochlorophyll a was absent. The respiratory quinone was Q-10 and the dominant fatty acid was summed feature 8 (C18 : 1omega7c and/or C18 : 1omega6c). The major polar lipids comprised phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, an unidentified phospholipid and two unidentified polar lipids. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 1-19bT belonged to the family Rhodobacteraceae and formed a distinct monophyletic clade with 'Oceaniovalibus guishaninsula' JLT2003 and Pontibaca methylaminivorans GRP21T, exhibiting similarities of 94.7 and 92.2 %, respectively. The genomic DNA G+C content was 64.2 mol%. Based on the phenotypic, chemotaxonomic and genotypic data, strain 1-19bT represents a novel species in a new genus of the family Rhodobacteraceae, for which the name Oceaniglobus indicus gen. nov., sp. nov. is proposed, with the type strain 1-19bT (=MCCC 1A11863T=KCTC 52709T). PMID- 29043959 TI - Purified citritin in combination with vancomycin inhibits VRE in vitro and in vivo. AB - Gram-positive pathogens such as methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecium (VRE) have been frequently associated with bacterial resistance mechanisms. These mechanisms, in turn, restrict a range of therapeutic opportunities for the treatment of infections caused by these micro-organisms. Faced with this problem, the present study aims to isolate and characterize molecules with antimicrobial activity derived from the fungus Penicillium citrinum isolated from Cerrado soil. Furthermore, we also tested possible antibacterial potential alone and in combination with commercial antimicrobial agents. In this context, citrinin was isolated and characterized by nuclear magnetic resonance and electrospray ionization. Functional analyses showed MIC of 128 ug ml-1 against S. aureus ATCC 25923, E. faecalis ATCC 29212 and a clinical isolate of vancomycin-resistant E. faecium (VRE01). However, for a clinical strain of methicillin-resistant S. aureus (MRSA01), the MIC was 256 ug ml-1. In order to avoid such high concentrations and reduce the collateral effects, additive effects were evidenced by combining citrinin with cefoxitin against MRSA01 (FIC index=0.5) and also citrinin with vancomycin toward VRE01 (FIC index=0.5). In vivo studies with BALB/c-tipe mice (MRSA assay) demonstrated a clinical ineffectiveness of cefoxitin associated with citrinin (9.8 mg kg-1 of cefoxitin +0.2 mg kg-1 of citrinin), with this combination being inefficient to increase animal survival. However, the combination used in the treatment of VRE (23.5 mg kg-1 of citrinin +1.5 mg kg-1 of vancomycin) sepsis model was extremely promising, leading to an animal survival rate of 80 percent. In summary, our data show, for the first time, the possible successful use of citrinin associated with vancomycin for pathogenic bacteria control. PMID- 29043960 TI - Surveillance of Zika virus infection in the EU/EEA, June 2015 to January 2017. AB - Surveillance of Zika virus (ZIKV) infection in the European Union/European Economic Area (EU/EEA) was implemented in 2016 in response to the large outbreak reported in the Americas in 2015 associated with an increased number of infants born with microcephaly. Between June 2015 and January 2017, 21 EU/EEA countries reported 2,133 confirmed cases of ZIKV infection, of whom 106 were pregnant women. Cases infected in the Caribbean constituted 71% of reported cases. Almost all cases (99%) were most probably infected by mosquito bite during travel outside continental Europe, while only 1% were transmitted sexually. Considering that 584 imported cases were reported between May and October 2016 among residents of areas with established presence of Aedes albopictus, the absence of autochthonous vector-borne cases suggests that Ae. albopictus is not an efficient vector for ZIKV infection. PMID- 29043962 TI - Usutu virus infections among blood donors, Austria, July and August 2017 - Raising awareness for diagnostic challenges. AB - Between July and August 2017, seven of 12,047 blood donations from eastern Austria, reacted positive to West Nile virus (WNV) in the cobas test (Roche). Follow-up investigations revealed Usutu virus (USUV) nucleic acid in six of these. Retrospective analyses of four blood donors diagnosed as WNV-infected in 2016 showed one USUV positive. Blood transfusion services and public health authorities in USUV-endemic areas should be aware of a possible increase of human USUV infections. PMID- 29043961 TI - Low 2016/17 season vaccine effectiveness against hospitalised influenza A(H3N2) among elderly: awareness warranted for 2017/18 season. AB - In a multicentre European hospital study we measured influenza vaccine effectiveness (IVE) against A(H3N2) in 2016/17. Adjusted IVE was 17% (95% confidence interval (CI): 1 to 31) overall; 25% (95% CI: 2 to 43) among 65-79 year-olds and 13% (95% CI: -15 to 30) among those >= 80 years. As the A(H3N2) vaccine component has not changed for 2017/18, physicians and public health experts should be aware that IVE could be low where A(H3N2) viruses predominate. PMID- 29043964 TI - Accuracy of diagnosis criteria in patients with suspected diagnosis of sporadic Creutzfeldt-Jakob disease and detection of 14-3-3 protein, France, 1992 to 2009. AB - Diagnostic criteria of Creutzfeldt-Jakob disease (CJD), a rare and fatal transmissible nervous system disease with public health implications, are determined by clinical data, electroencephalogram (EEG), detection of 14-3-3 protein in cerebrospinal fluid (CSF), brain magnetic resonance imaging and prion protein gene examination. The specificity of protein 14-3-3 has been questioned. We reviewed data from 1,572 autopsied patients collected over an 18-year period (1992-2009) and assessed whether and how 14-3-3 detection impacted the diagnosis of sporadic CJD in France, and whether this led to the misdiagnosis of treatable disorders. 14-3-3 detection was introduced into diagnostic criteria for CJD in 1998. Diagnostic accuracy decreased from 92% for the 1992-1997 period to 85% for the 1998-2009 period. This was associated with positive detections of 14-3-3 in cases with negative EEG and alternative diagnosis at autopsy. Potentially treatable diseases were found in 163 patients (10.5%). This study confirms the usefulness of the recent modification of diagnosis criteria by the addition of the results of CSF real-time quaking-induced conversion, a method based on prion seed-induced misfolding and aggregation of recombinant prion protein substrate that has proven to be a highly specific test for diagnosis of sporadic CJD. PMID- 29043966 TI - Hospital at home - a review of our experience. AB - INTRODUCTION: Hospital at home (HAH) is a service that provides home-based nursing and rehabilitation services whose aim is to prevent admission or to facilitate early discharge from care in an acute hospital. METHODS: We evaluated the effectiveness of early discharge hospital at home (HAH) schemes for hip fracture patients over a 27-year period in a district general hospital in the United Kingdom. A long-term database for audit and research purposes is maintained for all hip fracture patients admitted to Peterborough City Hospital. The data were analysed retrospectively and patients were followed up routinely for six weeks after discharge. RESULTS: As many as 8876 patients were admitted with a hip fracture between 1st January 1987 and 31st December 2014, of which 5512 patients were eligible for one of the two available HAH schemes. The proportion of eligible patients discharged to the HAH schemes, and their hospital stay and readmission rates were measured; 1786 patients were discharged to a HAH scheme. The proportion of patients discharged to the scheme progressively reduced from a maximum of 94% to a minimum of 13% over the study period. The length of hospital stay until discharge to the scheme progressively increased from a mean of eight days to 18 days. DISCUSSION: We conclude that HAH schemes can potentially reduce the length of hospital stay of hip fracture patients but continued resources and service organisation have to be provided to match the increasing demand to prevent the service from becoming ineffective. PMID- 29043965 TI - Japanese Encephalitis Virus Transmitted Via Blood Transfusion, Hong Kong, China. AB - Japanese encephalitis virus (JEV) is a mosquitoborne virus endemic to China and Southeast Asia that causes severe encephalitis in <1% of infected persons. Transmission of JEV via blood transfusion has not been reported. We report transmission of JEV via blood donation products from an asymptomatic viremic donor to 2 immunocompromised recipients. One recipient on high-dose immunosuppressive drugs received JEV-positive packed red blood cells after a double lung transplant; severe encephalitis and a poor clinical outcome resulted. JEV RNA was detected in serum, cerebrospinal fluid, and bronchoalveolar lavage fluid specimens. The second recipient had leukemia and received platelets after undergoing chemotherapy. This patient was asymptomatic; JEV infection was confirmed in this person by IgM seroconversion. This study illustrates that, consistent with other pathogenic flaviviruses, JEV can be transmitted via blood products. Targeted donor screening and pathogen reduction technologies could be used to prevent transfusion-transmitted JEV infection in highly JEV-endemic areas. PMID- 29043968 TI - ? PMID- 29043969 TI - [Orthodontics and Alexis Schange in 1841]. AB - INTRODUCTION: Alexis Schange was one of the first practitioners able to use accurate casts of the dental arches thanks to the invention of the impression tray by Delabarre. Consequently, his diagnoses were more precise and his appliances fitted better than those of his predecessors. MATERIALS AND METHOD: The author will first outline the status of Orthodontics prior to Schange and the advent of the first casts, before describing Schange's contribution to Orthodontics. DISCUSSION: In 1841, Schange published his "Handbook of Dental Uprighting", a clear and pedagogical work and undoubtedly the best over the many years when Orthodontics was exclusively European. PMID- 29043970 TI - [A change of paradigm in the treatment of Class II malocclusions in children and adolescents: the benefits of the Class II Corrector]. AB - INTRODUCTION: The treatment of class II malocclusions is the core of our clinical activity. What elements can clinician rely on to offer their patients, whether children or adolescents, a treatment of their class II malocclusion that is not only effective but also the most appropriate for each individual case? Which schedule and what therapeutic device should be used? MATERIALS AND METHODS: Evidence-based orthodontics, along with a search for the best data on two-phase treatments, were used to judge the validity of the main objectives sought when correcting a Class II malocclusion in children or adolescents, including treatment of mandibular retrognathy. RESULTS: Published data show that the long term effects of a first phase of treatment on the amount of mandibular growth are at best weak and clinically insignificant. This observation triggers a paradigm shift by refocusing patient treatment on the achievement of other therapeutic objectives. A new orthodontic appliance, the Clas II Corrector, is presented. Its advantages and its use are described and illustrated by means of clinical cases. CONCLUSIONS: Class II Corrector allows distalization of maxillary lateral areas, effectively limits undesirable dentoalveolar compensations and facilitates the rehabilitation of orofacial functions. In addition to its clinical efficacy, patients appreciate its small footprint, ease of wearing, and lack of impact on phonation. PMID- 29043967 TI - Dual head screw hip nailing for trochanteric fractures. AB - INTRODUCTION: There are limited information and inconclusive results for dual head screw intramedullary hip nails for trochanteric fractures. Therefore, we performed a prospective study to evaluate the healing of fractures, and survival, function, and complications of patients operated with this implant. METHODS: We prospectively studied 79 patients (61 women and 18 men; mean age: 84.7 years; range: 65-96 years) with a low-energy trochanteric fracture, treated with a dual head screw intramedullary hip nail from 2013 to 2016. The mean follow-up was 2.1 years (range: 1-3 years); seven patients were lost to follow up. This left 72 patients for further analysis. We evaluated the healing of fractures, and survival, function, and complications of patients. RESULTS: Fracture healing was evident in 70 patients (97.2%) at 2-3 months postoperatively. One patient experienced cut-out and z-effect phenomenon of the head screws. Another patient experienced a periprosthetic femoral diaphysis fracture at the distal tip of the nail. A third patient experienced an acute postoperative superficial skin infection that was treated successfully with wound dressing changes and a course of antibiotics. Sixteen patients (22.2%) deceased within 12 months postoperatively. In the remaining patients, the Harris Hip Score (HHS) at 12 months postoperatively was excellent in 16 (28.6%), good in 23 (41.1%), fair in 10 (17.8%), and poor in 7 patients (12.5%). The function declined after the patients' fracture. Fair and poor results were related to age > 85 years, poor pre-fracture level of function, and AO/OTA-31-A3 fracture types. CONCLUSION: The dual head screw intramedullary hip nail is associated with high healing and low complication rates for intertrochanteric fractures. The function of the patients is good or excellent in most cases; however, it declines, especially for those patients with age > 85 years, poor pre-fracture level of function, and AO/OTA-31 A3 fracture types. PMID- 29043971 TI - [What are the treatment needs in adults? An evaluation of 258 cases by the IOTN]. AB - INTRODUCTION: The aim of this epidemiological study was to evaluate the need for orthodontic treatment in a sample of adults living in France. MATERIALS AND METHODS: The indicator selected was the dental component, IOTN (index of orthodontic treatment need). RESULTS: Among the 258 adults evaluated, 37% of patients had a strong need and 21% had a moderate need; 29% of those aged 35 and under were in strong need for treatment compared with 47% of those over 35 years, with the need for treatment increasing with age. The most frequent occlusal anomalies were dental migrations following an uncompensated tooth extraction (a situation that involved 22% of subjects). It was the only occlusal anomaly whose frequency increased significantly with age. Among patients with uncompensated tooth extraction, two thirds experienced dental migrations requiring orthodontic treatment. DISCUSSION: Although the IOTN indicator is widely used in the literature, it is controversial since all the characteristics evaluated are liable to impact longevity and the functioning and esthetics of the dentition, thus excluding any other consideration. The need for treatment in adults in France would therefore appear to be greater than in adolescents and would seem to increase with age, mainly due to uncompensated dental extractions. PMID- 29043972 TI - [Effects of maxillary disjunction on canine impaction in patients presenting a maxillary transverse skeletal deficiency]. AB - INTRODUCTION: This study focuses on the effects of rapid maxillary disjunction on the tendency to canine impaction in patients displaying a maxillary transverse skeletal deficiency. MATERIALS AND METHODS: Using the segmentation method described by Ericson and Kurol and modified by Lindauer, et al., a series of panoramic views taken before and after disjunction was studied to compare changes in the position of the tip of the maxillary canine depending on whether it was covered or not by the homolateral lateral incisor, according to the side and patient's sex. The cohort consisted of 193 patients, all treated using a palatal expander welded to bands. RESULTS: A statistically significant improvement was observed in all categories regarding the position of the maxillary canine. Disjunction was successful in 87% of cases in our sample. No significant differences were found according to side or sex. PMID- 29043973 TI - [Aesthetic perception of the vertical position of the incisal edges of the maxillary lateral incisors in the smile arch]. AB - INTRODUCTION: The aim of this study is to assess the attractiveness in the smile arch of different vertical positions of the incisal edges of the maxillary lateral incisors. MATERIAL AND METHODS: A frontal photograph of a Caucasian woman's smile was digitally modified to obtain an image with the incisal edges of the maxillary lateral incisors symmetrically tangent to the smile arch. These incisal edges were then moved vertically by 0.5 mm increments. The value was considered positive for an occlusal shift and negative for a gingival shift. Four other images were obtained by moving the incisal edges from +0.5 mm to -1.5 mm. The five images were rated on a visual analog scale by three groups of evaluators: orthodontists, dentists and laypersons. A statistical analysis was performed. RESULTS: Laypersons preferred first lateral incisors tangent to the smile arch, second a +0.5 mm shift, and third a -0.5 mm shift. Orthodontists and dentists preferred first a -0.5 mm shift and second a null shift. CONCLUSIONS: The aesthetic perception of the smile, as regard to the vertical relationships between the incisal edges of the anterior teeth, differs between laypersons and professionals but remains homogenous between orthodontists and dentists. The most consensual aesthetic situation, from both professionals' and laypersons' points of view, is the geometry in which the incisal edges of the maxillary lateral incisors are tangent to the smile arch. PMID- 29043974 TI - [What are the cephalometric features of "good" and "bad" guys in cartoons?] AB - OBJECTIVE: The objective of the study was to search for links between specific facial features and the psychology of the "good" and "bad" guys in cartoons. MATERIAL AND METHOD: We made 60 cephalometric tracings and compared the characters' profiles using statistical tests. RESULTS: The "bad guy" profile is closer to the normal profile of real humans than that of the "good guys". Profiles perceived as "good" in cartoons appear to be stereotyped. Thus, any profile not matching the "norm" can be interpreted as being unpleasant and consequently associated with the features of the "bad guys". The standard "bad guy" profile has a longer more prominent nose, a jutting chin (a bigger soft tissue angle) and a higher upper third of the face than the lower third (the opposite of the standard profile of the "good guys"). DISCUSSION: These standardized portraits reflect and influence the (subconscious) prejudices of both young and less young movie-goers (not to mention the cartoonists) regarding their fellow humans. PMID- 29043975 TI - [Preventive and therapeutic advantages of sugar-free chewing gums in orthodontics. A study conducted on practitioners and patients]. AB - OBJECTIVE: The objective of this study is to assess the level of knowledge in a cohort of oral health professionals and patients about preventive and therapeutic actions of sugar-free chewing gums. MATERIALS AND METHODS: A forward-looking monocentric study of perception regarding the level of information about the effects of sugar-free chewing gums consumption was conducted on 135 young patients, from 11 to 17 years old, carriers of fixed orthodontic appliances and treated in the Department of Orthodontics in the Oral Medicine and Surgery Center of the University Hospitals of Strasbourg. Besides, 34 practitioners in the Department of Orthodontics and Pediatric Dentistry were also included. Data were collected between May 2016 and July 2016. A specific questionnaire, using the adapted terminology and dealing with the same items was developed for each studied population. RESULTS: The majority of the individuals of both studied populations believe that the consumption of sugar-free chewing gum leads to a greater risk of orthodontic device unsticking or fracture and that it is not associated to a decrease of the orthodontic pain. DISCUSSION: Our results confirm the fact that the knowledge, mainly acquired in an empirical way, is against the data of the current literature. The evaluation of the level of knowledge demonstrated that there is a real lack of information about the preventive interests of the consumption of sugar-free chewing gums during orthodontic treatment. CONCLUSIONS: This study highlights the need for information campaigns and oral prevention in general population, as well as in healthcare professionals, concerning the preventive and analgesic interests of sugar-free chewing gums during orthodontic treatments. PMID- 29043976 TI - ? PMID- 29043977 TI - A protein phosphatase network controls the temporal and spatial dynamics of differentiation commitment in human epidermis. AB - Epidermal homeostasis depends on a balance between stem cell renewal and terminal differentiation. The transition between the two cell states, termed commitment, is poorly understood. Here, we characterise commitment by integrating transcriptomic and proteomic data from disaggregated primary human keratinocytes held in suspension to induce differentiation. Cell detachment induces several protein phosphatases, five of which - DUSP6, PPTC7, PTPN1, PTPN13 and PPP3CA - promote differentiation by negatively regulating ERK MAPK and positively regulating AP1 transcription factors. Conversely, DUSP10 expression antagonises commitment. The phosphatases form a dynamic network of transient positive and negative interactions that change over time, with DUSP6 predominating at commitment. Boolean network modelling identifies a mandatory switch between two stable states (stem and differentiated) via an unstable (committed) state. Phosphatase expression is also spatially regulated in vivo and in vitro. We conclude that an auto-regulatory phosphatase network maintains epidermal homeostasis by controlling the onset and duration of commitment. PMID- 29043979 TI - Warm, Cozy Woodstoves . . . and the PM They Produce: Home Interventions Show Mixed Results in Protecting Children with Asthma. PMID- 29043980 TI - A support to biological validation of oxygenation parameters. AB - Blood gas analyzers are able to provide information on a wide range of oxygenation parameters. Some of these data are complex. Their biological significance or clinical consistency are not always well known. This article aims to define these parameters, their reference values according to the type of sample; and to outline the possible errors during their interpretation. Thus, these reliable results can be integrated into the diagnostic procedure. We will see that the information provided by physicians plays an important role in their interpretation (temperature, patient ventilation condition, type of sample...). Knowing the physiological significance of complex data such as the oxygen alveolar-arterial gradient, or the estimated fraction of shunt, as well as the factors influencing them, allows us to improve their biological validation as accurately as possible. Finally, we will summarize the major oxygenation disorders and their impact on the results of blood gas analysis. PMID- 29043978 TI - A unified internal model theory to resolve the paradox of active versus passive self-motion sensation. AB - Brainstem and cerebellar neurons implement an internal model to accurately estimate self-motion during externally generated ('passive') movements. However, these neurons show reduced responses during self-generated ('active') movements, indicating that predicted sensory consequences of motor commands cancel sensory signals. Remarkably, the computational processes underlying sensory prediction during active motion and their relationship to internal model computations during passive movements remain unknown. We construct a Kalman filter that incorporates motor commands into a previously established model of optimal passive self-motion estimation. The simulated sensory error and feedback signals match experimentally measured neuronal responses during active and passive head and trunk rotations and translations. We conclude that a single sensory internal model can combine motor commands with vestibular and proprioceptive signals optimally. Thus, although neurons carrying sensory prediction error or feedback signals show attenuated modulation, the sensory cues and internal model are both engaged and critically important for accurate self-motion estimation during active head movements. PMID- 29043981 TI - Southeast asian ovalocytosis: the need for a carefull observation of red cell indices and blood smear. AB - Southeast asian ovalocytosis (SAO) is characterized by macro-ovalocytes and ovalo stomatocytes on blood smear. SAO is common in Malaisia and Papua-New-Guinea where upwards to 40 per cent of the population is affected in some coastal region. Inherited in an autosomal dominant way, illness results from deletion of codons 400-408 in SLC4A1 gene which encodes for band 3 erythrocyte membrane protein. This deletion is responsible for an unusual erythrocyte stiffness and oval shape of the cells on blood smear. Heterozygous carriers are usually asymptomatic whereas homozygous are not viable without an intensive antenatal care. Here, we describe 4 patients diagnosed incidentally by cytogram appearance of the Advia(r) 2120i (Siemens) representing hemoglobin concentration according to red blood mean cellular volume (GR/VCH). PMID- 29043983 TI - Trisomy 13 by robertsonian translocation rob (13;13)(q10;q10) +13: about one case. AB - We are reporting a rare case of foetal trisomy 13 due to a robertsnonian translocation. Further to the study of both parents karyotypes, genetic councelling is advisable in order to assess the potential risk of trisomy that may occur during a future pregnancy. PMID- 29043982 TI - Preanalytical influence of pneumatic tube delivery system on results of routine biochemistry and haematology analysis. AB - Pneumatic tube delivery system (PTS) enables to reduce considerably turnaround times. The aim of the study was to assess the influence of the PTS on the quality of routine biochemical and hematological tests in our laboratory. Blood samples from 6 hospitalized patients and 8 healthy volunteers were analyzed. Blood samples were delivered to the laboratory by a PTS and by a human courier. We performed the following analysis: ionized calcium, sodium, potassium, lactate deshydrogenase (LDH), aspartate aminotransferase (ASAT), arterial blood gas, complete blood count and coagulation test as prothrombin time, activated partial thromboplastin time, factors V and VIII. Results were compared between the both method of transport according to the recommendation of the Societe francaise de biologie clinique and the French committee for accreditation (SH-GTA01, norme NF ISO 5275-6). The hemolysis index of plasma was similar between the groups and no morphological differences were found on blood cells. For three samples, when delivered by PTS, LDH levels (two samples) and neutrophil polynuclear count (one sample) were above the recommended guidelines compared to those delivered by courier. Conversely, LDH levels and FVIII were below in two samples delivered by PTS. LDH levels, PNN count or factor VIII can be affected by PTS without the clinical interpretation being modified. We concluded that the PTS can be used to transport blood samples for routine biochemical and hematological analysis in our hospital. PMID- 29043984 TI - Optimization of pre-analytical conditions for measurement of biomarkers in seminal plasma: application to adipokines. PMID- 29043985 TI - From the observation of atypical cells on blood smear to the diagnosis of mast cell leukemia: a case report in a 79 year old woman consulting for anemia. AB - Mast cell leukemia is an extremely rare disease, which belongs to the systemic mastocytosis group (WHO 2016). We are reporting the case of a 79-year-old woman, without any hematological particular history consulting for hyperthermia, repeated malaise and subacute anemia. Her clinical examination was normal. Unusual cells were seen on blood and bone marrow smears. They represent more than 10% of blood nucleated cells end more than 20% of the bone marrow nucleated cells. Bone marrow immunophenotyping was performed to characterize these cells. It revealed a cell subset expressing the surface antigens CD117, CD2 and CD25. This immunophenotypic profile is the hallmark of malignant mast cells. Then mast cell leukemia diagnosis could have been made and KIT gene sequencing highlighted the N822Y mutation in exon 17. The patient was initially treated with midostaurin, a tyrosine kinase inhibitor. Lack of therapeutic response and absence of the KIT D816V mutation led to switch to imatinib, following the latest scientific recommendations. PMID- 29043986 TI - Potential of big data analytics in the French in vitro diagnostics market. AB - The new paradigm of the big data raises many expectations, particularly in the field of health. Curiously, even though medical biology laboratories generate a great amount of data, the opportunities offered by this new field are poorly documented. For better understanding the clinical context of chronical disease follow-up, for leveraging preventive and/or personalized medicine, the contribution of big data analytics seems very promising. It is within this framework that we have explored to use data of a Breton group of laboratories of medical biology to analyze the possible contributions of their exploitation in the improvement of the clinical practices and to anticipate the evolution of pathologies for the benefit of patients. We report here three practical applications derived from routine laboratory data from a period of 5 years (February 2010-August 2015): follow-up of patients treated with AVK according to the recommendations of the High authority of health (HAS), use of the new troponin markers HS and NT-proBNP in cardiology. While the risks and difficulties of using algorithms in the health domain should not be underestimated - quality, accessibility, and protection of personal data in particular - these first results show that use of tools and technologies of the big data repository could provide decisive support for the concept of "evidence based medicine". PMID- 29043987 TI - Successful treatment of donor cell derived myelodysplastic syndrome with 5 azacytidine. PMID- 29043988 TI - Effects of estrogen on learning-memory and expression of calbindin-D28K in hippocampus in vascular dementia rats. AB - Vascular dementia (VD) models were made first by repeating cerebral ischemia reperfusion and followed by treating with estrogen. Learning-memory ability was measured by Morris water maze. Concentration of Ca2+ in hippocampus was determined by Fura-2/AM fluorescence probe and the expression of Calbindin-D28K (CB) in hippocampal CA1 was tested by immunohistochemistry. Learning-memory ability was improved in E group rats; Concentration of Ca2+ in hippocampus was decreased in E group rats. The expression of CB was less in E group rats. It implies that estrogen could improve learning-memory ability in VD rats, which may be associated with suppressing intracellular Ca2+ overload and increasing the expression of CB in hippocampus. PMID- 29043989 TI - Antiviral screening of four plant extracts against acyclovir resistant herpes simplex virus type-1. AB - Herpes simplex virus type 1 (HSV-1) causes serious infections particularly in immunocompromised patients. Methanolic extract of four plants were evaluated for their anti-viral effects against acyclovir resistant HSV-1 in HeLa cell line. The 50% cytotoxic concentration (CC50) as well as the effective minimal cytotoxic concentration of each plant extract were evaluated by MTT assay. Antiviral effects of the plant extracts on HSV-1 were examined at different concentrations of the extract. The effective minimal cytotoxic concentration was evaluated at different times of virus replication after infection. Virus titration was assessed by tissue culture infectious dose 50 (TCID50) method. Among the 4 plant extracts evaluated only Mentha pulegium L. extract was shown to exert the highest antiviral activity, with selectivity index (SI) 10.25. Direct treatment of HSV-1 with Mentha pulegium L. extract resulted in 1.7 log10 TCID50 reduction in virus titers after one hour. The highest reduction in HSV-1 infectivity was obtained 1 hour after the infection of the cells with virus resulting in 2.1 log10 TCID50 reduction as compared to the control. The antiviral effects of Mentha pulegium L. extract on HSV-1 after virus infection was more remarkable than the virucidal activity. PMID- 29043990 TI - Tumor necrosis factor-alpha and procalcitonin level variations in the serum and their effects on organ function in patients with severe acute pancreatitis during infected stage. AB - To investigate the changes of tumor necrosis factor-alpha (TNF-alpha) and procalcitonin (PCT) in the serum and their effects on organ function in patients with severe acute pancreatitis (SAP) during infected stage, aiming to provide a reference to individual treatment. 32 patients with SAP during infected stage admitted to the Digestive Department of The Second Affiliated Hospital of Zhengzhou University from April 2014 to May 2015 and also 30 volunteer normal people were recruited in this study. And 26 patients detected with positive pathogenic bacteria were grouped into group A and another 6 patients with negative pathogenic bacteria into group B and 30 normal people into group C. And TNF-alpha and PCT level in the serum and the liver, kidney and lung function and the relationship between them of all the included people were compared and analyzed. the serum TNF-alpha level detected in the bile, urine and the surface of wound in group A was much higher than that in group B (P<0.05); and there was no significant difference in PCT between group A and group B; and TNF-alpha and PCT level in the serum in group A and group B were remarkably higher than group C (P<0.05). In addition, the organ function (the liver, kidney and lung) in the patients with high TNF-alpha level (High TNF-alpha group) was significantly different from the patients with low TNF-alpha level (Low TNF-alpha group) (P<0.05). And various organ functional indexes increased significantly in the patients with high PCT level (P<0.05). There were two kinds of TNF-alpha level (high level and low level) in the patients during SAP general infection stage, and the high level may reduce various organ function, the low level can contribute to the regular inflammatory response. And there is a high PCT level in the early SAP infection stage, which can be used to predict the patients' condition. PMID- 29043991 TI - Correlation between antioxidant activity and phenolic acids profile and content of Algerian propolis: Influence of solvent. AB - We aimed in the reported study to investigate the impact of using various solvents in the extraction of potentially active compounds from Algerian propolis. Phenolic and flavonoids contents in association with antioxidant activity of the tested extracts were evaluated. Moreover phenolic composition was determined using UFLC-MS/MS. The tested parameters varied according to the used solvent. Total phenolic and flavononid contents ranged from 0.81+/-0.16 to 8.97+/ 0.25 EGA mg/g and from 0.57+/-0.01 to 3.53+/-0.84 EQ mg/g respectively. All the investigated extracts demonstrated notable antiradical and reducing activities. Ethyl acetate and n-butanol were found to contain the highest amounts of phenolic and flavonoid compounds and the strongest antioxidant properties. The antioxidant activity of propolis extracts appears to be largely influenced by total phenolic and flavonoid contents. Rutin, chlorogenic, ferulic, caffeic and gallic acids were found to be the main phenolic compounds in Algerian propolis. Our results suggest that Algerian propolis may be a poplar-type propolis. PMID- 29043992 TI - Correlation of the ultrasound imaging of breast cancer and the expression of molecular biological indexes. AB - This paper aims to 137 cases of breast malignant tumors confirmed by surgery and pathology were collected. All patients received ultrasound examination and were not treated by radiotherapy or chemotherapy before operation. The preoperative ultrasound images of breast cancer patients and postoperative pathological characteristics of paraffin sections were retrospectively observed. Ultrasound indicators included tumor size, shape, ratio of the longest/shortest dimension, edge of the spiculation and peripheral hyperechoic halo sign, internal echo types, micro calcification, posterior echo types, blood flow and signs of lymph node metastasis. The pathological indexes included histological type, infiltrating ductal carcinoma (IDC), histological grading, cancer tissue in the interior and edge of the lesion and stroma and expression of molecular biology indexes (ER, PR and C-erbB-2). The correlation of ultrasound imaging of breast cancer and his to pathological type and grading were analyzed and the ultrasounic characteristics and the his to pathological features was compared; then to explore the correlation of ultrasonic imaging of breast cancer and the expression of ER, PR and C-erbB-2. the tumor size of IDC (>2cm) was lager than that of the ductal carcinoma in situ (DCIS) and the early-stage IDC, with statistical significance (P<0.05), but compared with the specific carcinoma of breast (P>0.05). The ratio of irregular mass of IDC was more than that of the specific carcinoma of breast (P<0.05), but without statistical significance compared with the DCIS and early-stage IDC (P>0.05). The spiculate margin in the IDC was more than that of the early-stage IDC, DCIS and specific carcinoma of breast (P>0.05). The ratio of the longest/ shortest dimension, peripheral hyperechoic halo sign, internal echo, micro calfication, posterior echo types were not related to the types of breast cancer (P>0.05). The irregular mass rate in the III IDC were much higher than that in the I and II level IDC (P>0.05). The posterior echo attenuation in the I IDC was much higher than the II and III IDC (P>0.05). The tumor size, spiculate margin, peripheral hyperechoic halo, internal echo types, micro calcification were not significantly related to the histological grading of IDC. The tumor with larger size (>2cm), enhanced posterior echo, or lower internal echo will have a high histological classification and high rate of cancer tissue (P<0.05). The tumor with enhanced peripheral hyperechoic halo sign will have a higher histological classification and higher rate of cancer tissue in the peripheral tissues, compared with the tumors without halo (P<0.05). The tumor shape, ratio of the longest/ shortest dimension, spiculate margin were not significantly related to the internal tissues (P>0.05). The ratio of the longest/ shortest dimension (>1), spiculate margin and halo signs were related to the positive expression of ER and PR (P<0.05). The internal necrosis was related to the negative expression of PR, (P<0.05). The tumor size, shape, posterior echo types and blood flow were not significantly related to the expression of ER, PR and C-erbB-2 (P>0.05). PMID- 29043993 TI - Serum levels of leptin, zinc and tryptophan in obese subjects with sleep deficits. AB - Obesity is an important risk factor for sleep disorders. This study aimed to evaluate the association of leptin, zinc and tryptophan (TRP) in obese subjects with sleep deficits [sleep apnea (SA), insomnia (IN)]. In this cross sectional case control, with the verbal and written consent 206, obese with sleep deficits and 30, non-obese/normal identified from various areas of Karachi, Pakistan. The socio-demographic data including; age, body mass index (BMI), education and residence, of participants was collected. After providing informed consent, fasting blood samples were taken and serum was collected. The serum concentration of leptin, zinc and TRP were analyzed by ELISA (Enzyme-linked immunosorbent assay), FAAS (Flame atomic absorption spectrophotometer) and HPLC (High performance liquid chromatography) respectively. A significant correlation was found between BMI (body mass index) and leptin, BMI and zinc, BMI and TRP. The correlation between leptin consecutively was significantly associated with zinc and TRP in obese patients. Sleep deficits elevated circulatory levels of leptin while lower zinc and TRP levels compared to levels seen in non-obese (Normal) subjects with no sleep deficits. Obese subjects exhibited significantly higher levels of leptin with sleep deficits compared with non-obese subjects with normal sleep pattern, while obese subjects with SA had significantly high levels of leptin than obese subjects with IN and IN+SA. Patients with sleep deficits had significantly lower levels of serum TRP and zinc than non-obese subjects with normal sleep pattern. Obese subjects with SA had significantly lower levels of zinc and elevated levels of TRP than obese subjects with IN. Obese patients with IN+SA had significantly lower levels of leptin and zinc than IN and SA , while TRP levels were significantly lower in subjects with IN than obese subjects with IN+SA and IN. These results suggest that elevated levels of leptin which are possibly by adiposity and lessened levels of zinc and TRP have a great impact on progression of obesity and their association can contribute to tempt sleep disorders. PMID- 29043994 TI - Terpenic profile of different Rosmarinus officinalis extracts. AB - The Rosemary (Rosmarinus officinalis L.), a well-known medicinal and culinary herb, was studied to compare the terpenic profile of different extracts obtained from dry and fresh herb. There were studied the volatile oil extracted by hydro distillation from dry plant, the hydroalcoholic extracts obtained from fresh respectively dry plant and the glycerol macerate obtained from fresh plant, by GC MS using headspace injection. The separated compounds were identified using a MS spectra library. The quantitative determination was performed by normalization respectively by calibration curve method for 1,8-cineole, alpha-pinene and D limonene. The main separated compounds were alpha-pinene, 1,8-cineol, camphene, camphor, D-limonene and cymene. A significant difference was observed between the 4 samples volatile profiles. 1,8-cineole was found major component of the essential oil (VO-21.39%) and glycerol macerate (GM-35.60%), while and alpha pinene was detected as the main constituent of the two tinctures (T-46.05%; MT 31.93%). The highest 1,8-cineol content, determined by calibration curve method, was found in the volatile oil, while the fresh plant hydroalcoholic extract was richer in alpha-pinene and D-limonene. PMID- 29043995 TI - Clinical research of homocysteine, high-sensitive C-reactive protein and D-Dimer in patients with vascular dementia. AB - Aim of the present research work was to study the relationship between the degree of dementia and the serum levels of homocysteine(Hcy), high-sensitive C-reactive protein(hs-CRP), D-Dimer and vascular dementia(VaD) of patients, and to investigate the mechanism of Hcy, hs-CRP and D-Dimer in the vascular dementia. Subjects were divided into normal group and VaD group. CRP and D-Dimer protein of each sample were detected by nephelometry method, and the serum Hcy level was detected by Fluorescent labeling immunoassay method. Compared with the normal control group, Hcy, hs-CRP and D-Dimer in VaD group were significantly higher than that of control group, and the difference was statistically significant. Linear correlation analysis showed a negative association between Hs-CRP, Hcy and MMSE score. There was no correlation between the levels of D-Dimer and the MMSE score. Hcy, hs-CRP and D-Dimer are involved in the pathogenesis of vascular dementia (VAD), There is a significant correlation between the severity of vascular dementia and Hcy and Hs-CRP. PMID- 29043996 TI - Clinical therapeutic strategy of recombinant human brain natriuretic peptide and dopamine in cardiorenal syndrome type 4 patients combined with hypotension. AB - Aim of the present study is to investigate the clinical efficacy of recombinant human brain natriuretic peptide (rhBNP) and dopamine combination treatment in patients with cardiorenal syndrome type 4 (CRS4) combined with hypotension. A total of 160 CRS4 patients admitted to our hospital from July 2010 to December 2014 were recruited, and were randomly divided into two groups, the observational group (n=80) and the control group (n=80). CRS4 patients treated with dopamine were recruited into the control group. Patients in the observational group were given rhBNP and dopamine combination treatment once every 8 h. Both groups received conventional treatments and the course of treatment was 7 days. Systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), serum creatinine (SCr), N-terminal brain natriuretic peptide precursor (Nt-proBNP), creatinine clearance (CCr), left ventricular end diastolic diameter (LVEDd), left ventricular ejection fraction (LVEF), Stroke volume (SV), urine volume and adverse reactions before and after treatment were compared. The observational group showed significant changes in the levels of SBP, DBP and HR compared with the control group (P<0.05). The levels of SCr and Nt-proBNP decreased significantly in the observational group than those in the control group (P<0.05). The levels of CCr, LVEF, SV and urine volume increased significantly in the observational group than those in the control group (P<0.05). Patients in the observational group had mild and tolerable adverse reactions. rhBNP combined with dopamine infusion has good clinical efficacy and mild adverse effects in treatment of CRS4. PMID- 29043997 TI - Correlation between compliance in patients with anti-hypertensive therapy and blood pressure control. AB - This paper aims to understand the blood pressure control status for hypertension patients, and discuss the relationship between social support, medication compliance and blood pressure for hypertensive patients. The survey objective was the hypertensive patients in chronic disease management system in Xinxiang city. The survey was conducted as the questionnaire survey filled by objectives. Social support rating scale and medication therapy compliance questionnaire was utilized to evaluate the patients' social support and medication therapy compliance. 1095 patients in medication were investigated, the blood pressure of 66.6% investigated objectives was controlled at target levels (<140/90 mmHg), 70.0% investigated objectives have good medication therapy compliance; the overall social support score for hypertensive patients in medication was (40.01+/-6.54) points, the subjective support score, objective support score and support utilization degree score were respectively (24.43+/-4.61) points, (8.59+/-2.59) points and (7.00+/-2.06) points; Rank correlation coefficient of Spearman illustrated that the support utilization rating evaluation was apparently correlated to medication therapy compliance (rs=0.88, P<0.01); multivariate analysis proved that the protective factors for medication therapy compliance were the high support utilization rate (OR 1.62; 95%CI 1.19~2.05), long hypertensive duration (5~10 years: OR 2.01, 95%CI 1.42~2.73; more than 10 years: OR 1.46, 95%CI 1.01~1.99) and high average monthly household income (OR 2.03, 95%CI 1.45~2.69); Risk factor for blood pressure control were male (OR 0.61, 95% CI 0.47~0.79) and high hypertensive grade (OR 0.31, 95%CI 0.19~0.44); The protective factors for blood pressure control was good medication therapy compliance (OR 1.54, 95%CI 1.22~1.89), (average P<0.05). It required to build effective social support system, increase patients' social support utilization degree, emphasized the intervention on low average monthly household incomes, male higher rate, higher hypertensive degree, and further improve the medication therapy compliance and hypertensive control rate of hypertensive patients. PMID- 29043998 TI - Clinical study of water drinking test and 24-hour intraocular pressure monitoring in patients with primary open angle glaucoma. AB - This paper aims to observe the relevance of 24-hour intraocular pressure (IOP) monitoring and water drinking test (WDT) in patient with primary open angle glaucoma (POAG). 55 patients (90 eyes) with POAG was selected and randomly divided into operation group and drug group. Operation group, with 30 cases (48 eyes), were treat with trabeculectomy. And the other 25 cases (42 eyes) were treated with antiglaucoma medication. 24-hour intraocular pressure and WDT were measured before treatment and 6 months after treatment. The correlation between the peak value of 24-hour intraocular pressure (IOP) and intraocular pressure (IOP) fluctuation and the drinking water test were analyzed. Pearson correlation analysis showed a strong positive correlation between the peak value of diurnal IOP and the peak value of WDT IOP (r=0.758); and the Pearson correlation analysis also showed a strong positive correlation between the peak value of diurnal IOP and the peak value of WDT IOP after 6 months of POAG surgery or drug therapy (r=0.759,0.712). The peak value of IOP and IOP fluctuation in operation group were lower than those in the drug group at 6 months after operation, the difference was statistically significant. The peak value of WDT IOP can reflect the curve peak value of 24-hour IOP, which can be used to evaluate the current treatment. There were significant differences in IOP and IOP fluctuation between the drug group and the operation group at 6 months after treatment. Operation groups could achieve lower IOP and IOP fluctuation. PMID- 29043999 TI - Study of global DNA methylation in monozygotic twins with cerebral palsy. AB - The objective of this paper is to study the global DNA Methylation in monozygotic (MZ) twins with cerebral palsy. Two pairs of twins (a cerebral palsy children, a normal child) admitted to the First Affiliated Hospital of Zhengzhou University were selected as subjects. The phenol-chloroform method was used to extract DNA from venous blood and micro satellite DNA genotyping technique was used to identify the eggs of the twins. DNA methylation fragments were enriched by MBD affinity column chromatography, followed by Solexa sequencing and bioinformatics analysis. In this study, we found that there were different DNA hypermethylation regions between each pair of twins and normal children through global DNA methylation analysis technique by analyzing the blood cells of two pairs of monozygotic twins with cerebral palsy and normal infants. The results revealed the region of DNA methylation and the protein coding genes of promoter region of common methylation of cerebral palsy were both higher than normal children. These common promoter hypermethylation genes in cerebral palsy are involved in a variety of biological processes such as membrane protein transport, neuronal development, apoptosis, and metabolism. Moreover, DNA methylation plays an important role in gene expression. We hypothesized that the onset of cerebral palsy in twins is associated with hypermethylation of the promoter which inhibiting the expression of hypermethylation genes in children with cerebral palsy. The current research provided a basis for further study of the large sample of twins and sporadic cerebral palsy. PMID- 29044000 TI - Observation on Shenqi Fuzheng injection combined with cefoxitin sodium after cesarean section. AB - This paper aims to observe the effect of Shenqi Fuzheng Injection combined with cefoxitin sodium after cesarean section. Clinical data of 126 puerperae were retrospectively analyzed. They randomized into control group and treatment group, and there were 63 cases in each group. Patients in control group were given Cefoxitin Sodium treatment. And patients in treatment group were given Shenqi Fuzheng Injection on the basis of control group. After 7 days of treatment, the clinical curative effect of the two groups was observed and compared. The body temperature of the patients in treatment group was significantly decreased when compared with control group on the 2nd and 3rd day after operation (P<0.05); the first exhaust time and defecation time of patients in treatment group were significantly shortened when compared with control group (P<0.05); the postoperative hemoglobin and red blood cell count in both groups were all significantly increased when compared with before treatment (P<0.05), and the treatment group were evidently higher than control group (P<0.05); the postoperative neutrophilic granulocyte percentage, white blood cell count and lymphocytes percentage in both groups were all significantly lowered when compared with before treatment (P<0.05), and the neutrophilic granulocyte percentage, white blood cell count and lymphocytes percentage in treatment group were significantly lowered when compared with control group (P<0.05). Shenqi Fuzheng injection combined with cefoxitin sodium after cesarean section can effectively reduce the postoperative maternal body temperature and promote the recovery of maternal gastrointestinal function, which is conducive to the repair of uterus, further correct anemia after cesarean section and prevent postpartum infection. Its clinical curative effect is ideal, with certain clinical application value. PMID- 29044001 TI - Vitrectomy combined with intracular drug injection on treatment of endophthalmitis. AB - This paper aimed to evaluate the clinical application value of vitrectomy combined with intraocular drug injection on treatment of severe endophthalmitis. Retrospective analyzed the 28 eyes for the 28 cases of patients suffering severe endophthalmitis, and with treatment of pars plana vitrectomy combined with intraocular drug injection, and foreign matter removal surgery. This study also analyzed the whole body and local application of antibiotics data, and clinical data of corticosteroid drug treatment. This study had followed up 6 to 12 months, 28 intraocular infected eyes of the 28 cases all had got controlled. The vision of 26 eyes improved to some degree, 2 eyes had eyeball atrophy. vitrectomy combined with intraocular drug injection was the most effective method to treatment the suppurative endophthalmitis. PMID- 29044002 TI - Irrational antibiotic prescribing practice among children in critical care of tertiary hospitals. AB - This study assessed the prescribing pattern of irrational use of antibiotic among children under age of 12 years in public and private sector hospitals in Pakistan. The prospective clinical evaluation of drug utilization pattern of antimicrobials from Patient Bedside File (PBF) of in-patients and Culture Sensitivity Test (CST) reports were evaluated to determine the antibiotic resistance. Two indicators recorded to assess antibiotic prescribing were; dose of prescribed antibiotic (low-dose, rational and high -dose) and Indication (valid or invalid). Antibiotics resistance for 25 selected antibiotics was determined by culture sensitivity test. This study showed that in Private Sector Hospital 77.7% neonates, 13.3% infants and 9% children admitted in ICU were receiving antibiotics, among them only 57.3% neonates, 62% infants and 59.9% children were found valid that is prescribed antibiotics for right indication. 27% neonates, 19% infants and 22.1% children were prescribed under dose of antibiotics, which may lead to antimicrobial resistance and increased cost of hospital stay. Only 29.1% neonates, 30% infants and 36.8% children were receiving rational dosing. In Public Sector Hospital, 65.6% neonates, 19.4% infants and 15% children were receiving antibiotics. Among them valid indication was found in 35.3% neonates, 35.6% infants and 39.8% in children. 33.3% neonates, 26.6% infants and 28.2% children were receiving under dose that may lead to resistance not only among those who were prescribed under dose but also such bacteria become resistant and spread to other population to increase antimicrobial resistance. The irrational prescribing of antibiotics was found very high (above 50%) in Public sector hospital (Hospital-B) for every age group whereas in Private sector hospital (Hospital-A) this practice was found near to 50%. In this study the prescribing frequency of Amikacin, Cefixime, Cefotaxime, Meropenem, Amoxicillin, Vancomycin, Azithromycin, Levofloxacin and Clarithromycin was found above 80% in both hospitals (A and B). Among these, Amoxicillin, Penicillin, Erythromycin and Cephalexin showed higher resistance i.e. 49.2%. PMID- 29044003 TI - Expression and significance of DDX43 in lung adenocarcinoma. AB - This paper aims to determine the expression and clinical significance of DDX43 in lung adenocarcinoma. Expression of DDX43 gene and protein of lung adenocarcinoma tissue and para-carcinoma tissues was observed in 27 cases by RT-PCR and immunohistochemistry. These patients were diagnosed as lung adenocarcinoma in the Huaihe Hospital of Henan University from February 2015 to December 2015. The relative ratio of DDX43 mRNA expression in lung adenocarcinoma and para-carcinoma tissues was 0.87+/-0.62 versus 0.21+/-0.77 and the difference between the two groups was statistically significant (P<0.01). The expression of DDX43 in normal lung tissues and lung adenocarcinoma tissues was different. The positive rate of DDX43 expression in lung adenocarcinoma tissues was significantly higher than that in normal lung tissues, and the difference was statistically significant (P<0.05). The analysis of clinical pathological characteristics showed that the increase of protein expression was related to the stage and metastasis of lung adenocarcinoma. DDX43 is highly expressed in lung adenocarcinoma, and the expression level is related to the stage and metastasis of lung adenocarcinoma, suggesting that DDX43 is closely related to the occurrence and development of lung adenocarcinoma, and may be a molecular marker for early diagnosis of lung adenocarcinoma. PMID- 29044004 TI - Research on the influence of bilateral oophorectomy on the BMD, body components and sex hormone of women during the perimenopause. AB - To investigate the effect of bilateral oophorectomy on bone mineral density, body composition and sex hormone of peri-menopause women. 33 cases of peri-menopause women patients performed bilateral oophorectomy were chosen from xxx gynaecology and obstetrics department of xxx hospital from January 1st,2014 to Dec31th, 2014. And the 33 cases were taken as ovariectomy group. 35 women who were the naturally postmenopausal after menopause collected in clinic and in the same period with the patients of ovariectomy group were taken in control group. American GE-Lunar Prodigy dual energy X-ray absorptiometry and chemiluminescence method were employed to detect the bone mineral density, fat content, muscle content and sex hormone of the patients in both groups at the 6th and 12th month after menostasis. There was no statistical significance on the comparative difference of bone mineral density, fat content and muscle content at the 6th and 12th month after menostasis between both groups, P>0.05. At the 6th month after menostasis, the estradiol (E2) level in ovariectomy group was significantly lower than that of control group [(14.79+/-22.17)U/L vs (32.74+/-31.02U/L)], P<0.05; at the 12th month after menostasis, it had the statistical significance for the comparative difference between the level of E2 and and follicle-stimulating hormone (FSH) in ovariectomy group and that in control group, E2: (8.09+/-4.38)U/L vs (25.92+/ 3.53)U/L; FSH: (64.88+/-18.39)U/L vs (40.69+/-31.63)U/L], P<0.05. the change of E2 and FSH were the main symptom of peri-menopausal women within 12 months after bilateral oophorectomy, the decrease of E2 level had no effect on bone mineral density, fat content and muscle content. PMID- 29044005 TI - Analysis on the treatment and prevention of epidemic conjunctivitis in 108 cases. AB - To explore the treatment method and preventive measures on epidemic keratoconjunctivitis. 108 patients with epidemic keratoconjunctivitis who received treatment in our hospital from January, 2015 to September, 2015.were selected. These patients were treated with interferon eye drops, Ganciclovir ophthalmic gel, and alternating eye treatment of tobramycin-dexamethasone eye drops and diclofenac sodium eye drops. Meanwhile, health education was also performed among patients, so as to promote the recovery of the disease as soon as possible and to prevent the spread of the disease Among the 108 patients, there were 101 patients recovered. 7 patients had cornea remained sub epithelial round hoary haze, including 2 patients with evident cornea remained sub epithelial round hoary haze due to the occurrence of glucocorticoid-induced intraocular pressure and the tobramycin and dexamethasone eye drops were suspend. The clinical cure rate was 91.79%. There was no pathophoresis to health patients among the 108 patients. Active treatment of epidemic keratoconjunctivitis, combined with health education and publicity could increase the clinical cure rate and control the transmit of the disease spread. PMID- 29044006 TI - Clinical efficacy of cryotherapy combined with interferon in the treatment of chronic cervicitis complicated with HPV infection. AB - This paper aims to investigate the clinical curative effect and adverse reactions of cryotherapy combined with interferon in the treatment of chronic cervicitis complicated with HPV infection. 100 cases diagnosed with chronic cervicitis complicated with HPV infection from August 2014 to August 2015 in our hospital were selected and randomly divided into observation group (50 cases) and control group (50 cases). The preoperative and postoperative HPV-DNA changes were observed, and the vaginal discharge, time of decrustation and hemostasis, HPV negative conversion ratio and clinical efficacy were compared, to record the adverse reactions during treatment. After treatment, the level of RLU/CO value of the observation group was significantly lower than that of the control group (P<0.05); the vaginal discharge and time of decrustation and hemostasis of the observation group were shorter than that of the control group (P<0.05); 3 months after treatment, the HPV negative conversion ratio in the observation group was significantly higher than that in the control group; the total efficiency of the observation group was higher than that of the control group, with statistical significance (P<0.05). There were no serious adverse reactions in the two groups during the treatment. The efficiency of cervicitis complicated with HPV infection in the treatment of cryotherapy combined with interferon was more significantly. It can effectively reduce the load of HPV, promote the recovery of patients with pathological changes. Therefore, it is worth promoting. PMID- 29044007 TI - Depressive symptoms, monoamines levels, MAO-B activity and effect of treatment in a subset of depressed individuals from government sector hospital at Karachi. AB - Depression is one of the leading causes of disability in developing countries including Pakistan. This study was designed to assess the frequency and severity of depressive symptoms, monoamines and their metabolite levels, MAO-B activities before and after treatment with antidepressants in a sub-set of Karachi population in Pakistan. Drug naive depressed subjects were evaluated before and after treatment with selective serotonin reuptake inhibitors. Symptoms of depressed mood and anxiety psychic (90%) were more frequent whereas, suicidal thoughts (~50%) and feelings of guilt (~30%) were less common. Hamilton Depression Rating Scale scores were 21.4 +/- 0.8 in both genders with a significantly higher score (1.3x) in females. Homovanillic acid, 5- hydroxyindoleacetic acid and MAO-B activity were significantly higher 43%, 66% and 25% respectively, in depressed than normal subjects. A significant decline after 2 weeks treatment in HDRS scores with fluoxetine (19%) and paroxetine (40%) and in MAO-B activity (20%) was observed. In conclusion, in our population early decline in HDRS scores supports that they are SSRIs responders, whereas a concomitant reduction in MAO-B activities indicates that it can be considered as one of the parameters for early detection of response. Additionally, the low frequency of suicidal thoughts could be associated with higher levels of monoamine metabolites. PMID- 29044008 TI - Analysis of the effect of paclitaxel-eluting stents and paclitaxel-eluting balloon in the treatment of in-stent restenosis. AB - To compare and analyze the effect and the safety of the paclitaxel-eluting stents and paclitaxel-eluting balloon in the treatment for in-stent rest enosis. 120 cases, who had been undergone percutaneous coronary intervention (PCI) in the Department of Cardiology of Henan Provincial People's Hospital from January 2012 to January 2014 were selected. All the patients were randomly treated with paclitaxel-eluting balloon or paclitaxel-eluting stents. The former were divided into different groups that named group A and the later group B. All the selected patients signed the informed consent on interventional therapy and be given anti platelet drugs before operating. At the same time, they had routine examination, like chest X-ray, ultrasound, biochemical detection, Myocardial injury markers. (1) The two groups had no significant difference in the general information (P>0.05); (2) The success rate in the two groups reached 100% and (3) All the patients were visited in the 9th, 12th and 24th month to see if any of them was dead. The reexamination results in the 9th month showed that both drug-eluting balloon and drug-eluting stents were safe and effective in treating coronary artery in-stent restenosis. In addition, drug-eluting balloon was more effective than drug-eluting stents to prevent from the in-stent restenosis. PMID- 29044009 TI - [Stability of Candid#1 vaccine to prevent Argentine Hemorrhagic Fever]. AB - Candid#1 is the first live attenuated vaccine produced and registered in Argentina. Produced since 2003 at the INEVH to prevent Argentine hemorrhagic fever, it is obtained by harvesting supernatants of diploid cells infected with an attenuated strain of Junin virus and subsequent lyophilization. The stability of this vaccine is crucial to ensure its effectiveness. This study was aimed to evaluate the stability of Candid#1 by exposing it to different time and temperature conditions. Three vaccine batches produced in 2003 were analysed according to the following storage scheme: (a) reconstituted vaccine at 2 degrees C to 8 degrees C for 8 days; (b) lyophilized vaccine at 2 degrees C to 8 degrees C for 6 months; (c) lyophilized vaccine at -18 degrees C to -20 degrees C for 10 years. The potency was assessed in Vero cell monolayers under agar. The results were: (a) reconstituted vaccine was stable between 2 degrees C and 8 degrees C for 8 days, (b) lyophilized vaccine was stable between 2 degrees C and 8 degrees C for 2 months, and (c) lyophilized vaccine was stable 9 years between -18 degrees C and -20 degrees C, keeping all its properties. These results allowed us to establish the following storage conditions and expiration times for Candid#1: (a) reconstituted: 12 hours between 2 degrees C and 8 degrees C, (b) lyophilized: 30 days between 2 degrees C and 8 degrees C and (c) lyophilized: 9 years between -18 degrees C and -20 degrees C. Based on our results, favorable changes were made in the conditions of transport, storage and distribution of the vaccine. Domestic freezers in strategically located centers were installed, allowing the preservation of vaccine stocks for distribution to secondary vaccination centers. PMID- 29044010 TI - [Simple mechanical reperfusion in acute myocardial infarction: determinants, prognostic implications and relation with thrombus histology]. AB - Simple mechanical reperfusion (SMR) is defined as reperfusion achieved after wire insertion at the occluded infarct-related artery in primary angioplasty. The determinants and prognostic implications of SMR and its relationship with the histopathology of the rescued thrombus were evaluated in 601 patients with acute myocardial infarction showing ST elevation and pre-procedural total occlusion of the infarct-related artery (TIMI flow 0). Two groups were considered according to the presence of SMR, defined as the visualization of contrast material after crossing the occlusion with the guide wire. SMR was achieved in 303 patients (50.4%) and was found to be associated with less time to treatment (248 vs. 286 minutes; p = 0.001), less deteriorated initial left ventricular function and shock at admission (9.2 vs. 16.4%; p = 0.008), higher successful rate (94.7% vs. 78.5%; p < 0,0001) and of higher rate of thrombus rescue: 70/81 vs. 27/79 patients (p < 0.0001). The right coronary artery was the most frequent infarct related artery. Histopathology of the retrieved thrombi was available for 160 patients treated with thrombus aspiration. SMR was associated with smaller thrombus, lower contents of leukocytes and erythrocytes, and higher thrombus content of inflammatory cells, cholesterol and collagen crystals from the atheromatous plaque. SMR is an independent predictor of procedure success and its relationship with the anatomy of the thrombus could redefine the indication of thrombus aspiration. PMID- 29044011 TI - Antiretroviral therapy and arterial elasticity in HIV-infected patients. AB - Cardiovascular risk is increased in HIV-infected patients and has become a leading cause of morbi-mortality in this population. The purpose of this study is to compare HIV-infected patients on antiretroviral therapy (ART) and ART-naive HIV-infected patients regarding arterial elasticity. From September 2010 to September 2015, 105 HIV-infected subjects were enrolled, 41 ART-naive and 64 on ART with stable viral suppression. Elasticity of large and small arteries (LAE and SAE) was assessed by analysis of radial pulse waveforms using a calibrated device. A single set of measurements was performed. Multivariate linear regression models were constructed to estimate independent correlates of arterial elasticity. On-ART and ART-naive patients were similar with respect to gender, age, body mass index, Framingham cardiovascular risk score, smoking habits, and CD4+ counts. Median time on treatment was 60 months and 79% of patients were on regimens based on non-nucleoside reverse-transcriptase inhibitors. No significant differences in LAE and SAE assessments were found between groups. However, time on ART and cholesterol levels were independently associated with LAE impairment. No association between arterial elasticity and CD4+ counts was found. We conclude that cumulative exposure to ART may play a role on LAE impairment and deserves further investigation. PMID- 29044012 TI - [Gastrointestinal stromal tumors. Analysis of 40 cases]. AB - Gastrointestinal stromal tumors represent less than 3% of all digestive tumors. They are primarily located in the stomach and the small intestine. The curative treatment is surgical resection. In the case of unresectable tumor or advanced disease, imatinib is the treatment of choice. The purpose of this retrospective study was to describe the characteristics of patients with gastrointestinal stromal tumors treated at our institution in the period 2000-2015. We analyzed 40 consecutive patients diagnosed with gastrointestinal stromal tumor (mean age 58 year old, range 33-84). The mean 5-year survival was 30.5%. At diagnosis, 30 patients had localized disease (75%); 14 of them received adjuvant imatinib and 15 follow-up on observation. In this group the disease-free interval was 55 months. In patients with advanced disease, the progression-free interval was 30 months. PMID- 29044013 TI - [Acute aortic regurgitation due to infective endocarditis]. AB - Acute aortic regurgitation (AAR) due to infective endocarditis (IE) is a serious disease and usually requires surgical treatment. Our study aims to compare the clinical, echocardiographic, and microbiological characteristics as well as in hospital outcome of patients with AAR according to the severity of heart failure (HF) and to evaluate predictors of in-hospital mortality in a tertiary centre. In a prospective analysis, we compared patients with NYHA functional class I-II HF (G1) vs. functional class III-IV HF (G2). From 06/92 to 07/16, 439 patients with IE were hospitalized; 86 presented AAR: (G1, 39: 45.4% y G2, 47: 54.7%). The G1 had higher prosthetic IE (43.6% vs. 17%, p 0.01). All G2 patients had dyspnoea vs. 30.8% of the G1 (p < 0.0001). There were no differences in clinical, echocardiographic and microbiological characteristics. Surgical treatment was indicated mainly due to infection extension or valvular dysfunction in G1 and HF in G2. In-hospital mortality was 15.4% vs. 27.7% (G1 and G2 respectively p NS). In multivariate analysis, health care-associated acquisition (p 0.001), negative blood cultures (p 0.004), and functional class III-IV HF (p 0.039) were in hospital mortality predictors. One-fifth of the patients with EI had AAR. Half of them had severe HF which needed emergency surgery and the remaining needed surgery for extension of the infection and / or valvular dysfunction. Both groups remain to have high surgical and in-hospital mortality. Health care-associated acquisition, negative blood cultures and advanced HF were predictors of in hospital mortality. PMID- 29044014 TI - [Anaphylaxis and allergic reactions during surgery and medical procedures]. AB - Anaphylaxis during anesthesia is an unpredictable, severe, and rare reaction. It has an incidence of 1/10 000 to 1/20 000 surgeries. In most series, the responsible drugs include neuromuscular blocking agents, latex, or antibiotics. The frequency and etiology of systemic allergic reactions in other medical procedures are largely unknown. The identification of responsible drugs of anaphylaxis is a complex task, requiring testing of all medications and substances used during surgery. We describe our experience in a retrospective study of 15 patients. Ten subjects developed anaphylaxis during surgery, two in endoscopic studies and one in a trans-vaginal ultrasound. The remaining two subjects, one in a trans-vaginal ultrasound and another during a dental procedure had a systemic allergic reaction. We studied all patients with all medications administered during the procedures, including latex and detergents and disinfectants. Three surgeries had to be suspended at induction of anesthesia, five were stopped incomplete and two were completed. Both patients that presented a reaction during endoscopy required intensive care unit admission and the rest were observed in a Hospital. The responsible drugs during surgery anaphylaxis were neuromuscular blocking agents, latex, patent blue, and ranitidine. Ortho phthalaldehyde (OPA) was identified during endoscopic studies; latex was responsible in transvaginal ultrasounds; and amoxicillin in the dental procedure. The aim of the present article is to review our experience studying allergic systemic reactions and anaphylaxis during general anesthesia and medical procedures, emphasizing the severity of these reactions and the need for causative drug identification. PMID- 29044015 TI - [Argentina enacts first law on medical use of the cannabis plant. History and perspectives]. AB - In the last few years, great expectations have risen in the society concerning the eventual therapeutic usefulness of compounds derived from the cannabis plant. It is well known that these compounds are being used in treating certain health conditions, either through medical prescription or self-administration. Extreme opinions range from believing that it is a harmful and dangerous drug to sustaining that it is a panacea. However, the sheer existence of an endocannabinoid system in the brain compels us to study its dimensions and derivations thoroughly. It is expected that controversies and knowledge gaps will be clarified within the framework of this new law. Prohibitionism should not be a category of analysis. Regardless of the therapeutic effects of cannabinoid compounds, demonstrated or to be demonstrated, there are already severe restrictions on their use, which mirror the still existing restrictions to the use of opioids (drugs of definite utility but on which a huge taboo persists). This review presents the first Argentine law on the medical use of cannabis. Milestones in the history of marijuana at the national level are pointed out, which are inextricably linked to world trends either in favor or against prohibition. The current status of the use of cannabis oil in the country and evidences for its therapeutic value are also analyzed. Evidences on its therapeutic value are also analyzed as well as the current status of the use of cannabis oil in our country. PMID- 29044016 TI - Drug-induced hypothyroidism. AB - The thyroid axis is particularly prone to interactions with a wide variety of drugs, whose list increases year by year. Hypothyroidism is the most frequent consequence of drug-induced thyroid dysfunction. The main mechanisms involved in the development of primary hypothyroidism are: inhibition of the synthesis and/or release of thyroid hormones, immune mechanisms related to the use of interferon and other cytokines, and the induction of thyroiditis associated with the use of tyrosine kinase inhibitors and drugs blocking the receptors for vascular endothelial growth factor. Central hypothyroidism may be induced by inhibition of thyroid-stimulating hormone (bexarotene or corticosteroids) or by immunological mechanisms (anti-CTLA4 or anti-PD-1 antibody drugs). It is also important to recognize those drugs that generate hypothyroidism by interaction in its treatment, either by reducing the absorption or by altering the transport and metabolism of levothyroxine. Thus, it is strongly recommended to evaluate thyroid function prior to the prescription of medications such as amiodarone, lithium, or interferon, and the new biological therapies that show important interaction with thyroid and endocrine function in general. PMID- 29044017 TI - [CRISPR/Cas9 and gene therapy]. AB - The development of techniques that allow the precise and efficient edition of the genome of living cells is one of the main goals of biomedical research. Over the last few decades, a number of genome editing tools have been developed, the most prominent being the CRISPR/Cas9 system, a bacterial defense mechanism that has been redesigned for its use in other cellular systems. The accessibility, both technical and economical, and the enormous potential of CRISPR/Cas9 have contributed to an almost unprecedented revolution in the biomedical sciences and represent an important step forward in the field of gene therapy that needs, however, to be taken cautiously. PMID- 29044018 TI - [Insulin therapy in special conditions]. AB - Hyperglycemia during hospitalization is a common condition associated with poor prognosis. To date, insulin is the best strategy to treat hyperglycemia in these patients. An adequate glycemic control is associated with better clinical results. Nevertheless, glycemic goals are still controversial due to the increase of hypoglycemia and other adverse events. Diabetes mellitus is still the main cause of chronic renal failure in our country and its treatment deserves a special analysis considering that insulin pharmacokinetics is altered. Recommendations in this setting are based in expert panel opinions, focusing mainly in intermediate or long acting insulins combined with regular insulin and/or rapid acting analogues. During pregnancy, NPH and regular insulin are safe and effective. It is worth mentioning that the development of new long and rapid acting molecules yielded lower glycemic variability, better post-prandial control and less hypoglycemia. The aim of this study is to provide a review of the proper use of insulin in these special conditions. PMID- 29044019 TI - [Thickening of the posterior paratracheal line due to esophageal cancer]. PMID- 29044020 TI - [Generalized pneumatosis]. PMID- 29044021 TI - [ASIA syndrome: breast implant and Still's disease]. AB - Connective tissue diseases associated with silicone breast implants have been widely discussed. In the last decade, siliconosis has been included in the autoimmune/inflammatory syndrome induced by adjuvants (ASIA) next to Gulf War syndrome, macrophage myofascitis and postvaccination phenomena. The ASIA syndrome may appear as lupus, rheumatoid arthritis, or more rarely, as adult Still's disease. We discuss the case of a patient with prolonged fever and clinical criteria for ASIA and Still's disease. The prostheses were resected and pathology showed absence of breast implant associated anaplastic lymphoma ALK (-). Physicians should be alert to these new entities linked to silicone breast implants. PMID- 29044022 TI - [Villaret syndrome and lung adenocarcinoma: an unusual association]. AB - Villaret syndrome is defined by the affection of the glossopharyngeal (IX), vagal (X), accessory (XI) and hypoglossal (XII) cranial nerves associated with ipsilateral Horner syndrome. It is caused by the compression of these nerves and the neighboring sympathetic plexus fibers at the base of the skull, particularly in the retroparotid space. Even though the invasion of the central nervous system in patients with advanced lung cancer is a frequent and well known occurrence, this particular symptomatic association is extremely rare. We are reporting the case of a newly diagnosed lung adenocarcinoma patient who is simultaneously developing this syndrome. PMID- 29044023 TI - [May Thurner syndrome with ischemic cerebrovascular accident and permeable oval foramen]. AB - The association of cerebral ischemic attack with patent foramen ovale has not been extensively studied, and frequently the site of origin of embolism is not detected despite routine studies. We present the case of a young patient with ischemic stroke and permeable oval foramen in the context of May Thurner syndrome. The May Thurner syndrome is an entity scarcely studied in the medical literature and it has also been infrequently related to ischemic vascular cerebral accident, but in patients with permeable oval foramen without evidence of the emboligen source, it is interesting to rule it out as a cause of paradoxical embolism. PMID- 29044024 TI - [Induction of atrioventricular nodal reentrant tachycardia by radiofrequency application]. AB - Atrioventricular nodal reentrant tachycardia is the most common form of sustained regular narrow QRS complex tachycardia. It is caused by the presence of a dual atrioventricular nodal anatomy and physiology, with a fast and a slow pathway forming a substrate for re-entry. Electrophysiology study confirms the diagnosis when the tachycardia is induced, although in some cases this is not possible. Casuistry is here presented where the application of radiofrequency induced atrioventricular nodal reentrant tachycardia, when the electrophysiological study could not do it; we explain here its electrophysiological mechanism. PMID- 29044025 TI - [Screening of breast cancer. Certainties and controversies]. PMID- 29044026 TI - [Opus posthumous]. PMID- 29044027 TI - [Science and technology in Argentina according to the World Bank]. PMID- 29044028 TI - [Rodolfo Viotti: clinical investigator in Chagas disease (1959-2017)]. PMID- 29044030 TI - [Vitamin D - for everyone[Editorial]]. PMID- 29044031 TI - [General Practice - new challenges with classical core[Editorial]]. PMID- 29044032 TI - [The relationship between serum vitamin D levels and cardiovascular risk factors among Icelandic children]. AB - OBJECTIVE: To determine the relationship between serum vitamin D levels and known cardiometabolic risk factors among healthy Icelandic children as well as study these connections independent of body mass index (BMI). METHODS: We assessed the relationship between serum 25-hydroxyvitamin D, adiposity measured as BMI and 7 cardiometabolic risk factors (high blood pressure, total cholesterol, high density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglycerides, blood glucose and serum insulin). Subjects were 7-year old school children in six randomly selected elementary schools in Reykjavik, Iceland, in the autumn of 2006. RESULTS: Vitamin D was measured amongst 159 children. 35 (22%) were lower than 37,5 nmol/L, 70 (44%) between 37,5-50,0 nmol/L and 55 (34%) over 50 nmol/L. Deficiency was defined as lower than 37,5 nmol/L. No difference was between girls or boys, girls (n:85 = 44,2nmol/L), boys (n:74 = 46,9nmol/L), (p= 0,052). Deficient children had higher BMI (p=0.052), lower HDL (p=0.044) and higher HbA1c (p=0.015), and insulin (p=0.014) than those who had vitamin D higher than 50 nmol/L. Significant correlation was between low levels of vitamin D and high levels of serum insulin (p=0,014) and high levels of HbA1c (p =0,015), independent of BMI. CONCLUSION: Vitamin D deficiency has been associated with the development of cardiovascular disease. It is important to explore the connection between known risk factors and vitamin D and treat those who are deficient of it, especially children and young adults. It is possible that vitamin D deficiency has an effect on cardiovascular risk early in life through insulin resistance and altered blood sugar control. It is important to follow guidelines for giving vitamin D to children, as the result showed that 2/3 of the children were under 50 nmol/L. Key words: Vitamin D, cardiovascular risk factors, insulin Correspondence: Emil L. Sigurdsson emilsig@hi.is. PMID- 29044029 TI - Determining residual adipose tissue characteristics with MRI in patients with various subtypes of lipodystrophy. AB - PURPOSE: We aimed to investigate residual adipose tissue with whole-body magnetic resonance imaging to differentiate between subtypes of lipodystrophy. METHODS: A total of 32 patients (12 with congenital generalized lipodystrophy [CGL], 1 with acquired generalized lipodystrophy [AGL], 12 with familial partial lipodystrophy [FPLD], and 7 with acquired partial lipodystrophy [APL]) were included. RESULTS: Despite generalized loss of metabolically active adipose tissue, patients with CGL1 caused by AGPAT2 mutations had a significant amount of residual adipose tissue in the scalp, earlobes, retro-orbital region, and palms and soles. No residual adipose tissue was noted particularly in the head and neck, palms and soles in CGL2 caused by BSCL2 mutations. CGL4 caused by mutations in the PTRF gene was characterized with well-preserved retro-orbital and bone marrow fat in the absence of any visible residual adipose tissue in other areas. No residual adipose tissue was observed in AGL. Despite loss of subcutaneous fat, periarticular adipose tissue was preserved in the lower limbs of patients with FPLD. Retro-orbital adipose tissue was surprisingly preserved in APL, although they lacked head and neck fat. CONCLUSION: Lipodystrophies are a heterogeneous group of disorders characterized by generalized or partial loss of adipose tissue, which can be congenital or acquired. Our results suggest that residual adipose tissue characteristics can help distinguish different subtypes of lipodystrophy. PMID- 29044033 TI - [Reduction of shoulder dislocation with the Cunningham method]. AB - INTRODUCTION: The Cunningham technique has been shown to be an effective and simple method to reduce a dislocated shoulder. It is based on the theory that the humeral head remains outside the glenoid fossa due to tension in the long biceps tendon. In the beginning of 2013 doctors at the emergency department in Landspitali University Hospital (LUH) in Reykjavik were instructed in the Cunningham method for reduction of anterior dislocation without sedation. The goal of this retrospective study was to evaluate the impact of its induction with regards to number of attempts, successful relocations, sedation, use of analgesics and length of stay in the ED. MATERIAL AND METHODS: We searched our electronic database for patients coming to the ED in LUH in 2012 and 2013 with anterior shoulder dislocation. Information was obtained on age and gender, the ED length of stay, first to fourth attempted methods of reduction, medications given for pain relief and sedation and whether this was the first dislocation or not. We used descriptive statistics and comparing the two groups we used independent sample t-test or chi-square to calculate the p-value. RESULTS: During the study period, a reduction was attempted on 190 patients with a shoulder dislocation with 95% of dislocations successfully reduced in the ED. The proportion of patients on which the Cunningham method was applied on first attempt increased from 1% to 27% between years. Average number of attempts was 1.15 in the first year and 1.38 the second year (p = 0.002). The proportion of successful first attempts fell from 81.6% to 66% (p = 0.016) but successful relocation in the emergency department after all attempts was 93.1% and 97.1%, respectively (p = 0,305). The duration of treatment was similar between years or 226 and 219 minutes (p = 0,839). Sedation ratio decreased from 85.1% to 73.8% (p = 0.024) and use of analgesics was similar between years, 70.6% and 69.6% (p = 0.843). CONCLUSION: Induction of the Cunningham method resulted in a significant reduction in the need for sedation. It reduced the rate of successful relocations in the first attempt and increased the number of attempts to but had no effect on the length of stay in the emergency room or the overall rate of successful relocations. Key words: Cunningham, shoulder, dislocation, reduction Correspondence: Hjalti Mar Bjornsson hjaltimb@landspitali.is. PMID- 29044034 TI - [50th anniversary of the Reykjavik Heart Study[Editorial]]. PMID- 29044035 TI - [The Aging, Genes and Environment Susceptibility Reykjavik Study[Editorial]]. PMID- 29044036 TI - [Five decades of coronary artery disease in Iceland. Data from the Icelandic Heart Association]. AB - Coronary artery disease has been the leading cause of death and disability in Iceland during the past decades although in recent years, malignancy has taken over that position. A steady improvement in the level of major risk factors has been evident since 1980. This trend explains 72% of the decrease in premature mortality from coronary artery disease during the past three decades. However, an opposing trend in increasing obesity and type 2 diabetes has attenuated this decline in premature deaths. Unchanged risk factor trends will lead to increasing cardiovascular mortality in the years to come. This will result from the above mentioned changes in major risk factors as well as an increased ageing of the Icelandic population. At the same time case fatality after myocardial infarction has declined substantially. This will result in a steadily growing proportion of elderly in the population as well as a high burden of chronic non-communicable diseases among the elderly population. The resulting increase in long term disease and disability will put a major constraint on the health care system and economy alike. According to vital statistics and secular trends the rate of Icelanders in working age for each one reaching retirement age will decrease from the current 5.6 to 2.6 by year 2060. This paper addresses the driving factors of risk factor change in Iceland with previously unpublished data extending to 2013. PMID- 29044037 TI - [Review of epidemiology of fractures in the Icelandic Heart Association cohort]. AB - IIn recent years, scientific papers have been published in Osteoporosis International on the epidemiology of fractures in Iceland based on the Icelandic Heart Association cohort. We report the main results with emphasis on the major osteoporotic fractures (MOF), distal forearm, upper arm, clinical vertebral and hip. Those four types of fractures have been reported to cause about 90% of the total burden of all osteoporotic fractures. The incidence of those four fractures in the Icelandic Heart Association cohort have been used as the basis for the international fracture risk calculator "FRAX "in Iceland. "FRAX" assesses the risk of those fractures for the next 10 years in both sexes in the age group 40 90 years. FRAX Iceland was opened on the internet in the year 2013. We emphasize the importance of previous fracture history as almost 40% of all major osteoporotic fractures occur after first MOF according to our cohort. The results demonstrate the importance of time from the first fracture as the risk of the second fracture is greater in the first two years although increased risk remains during the next 20 years. This indicates the importance of secondary prevention early after the first fracture especially amongst elderly people. These results give a good overall view about the epidemiology of fractures in Iceland in comparison with foreign studies and shows that age standardized incidence of the most important osteoporotic fracture, the hip fracture, reached a maximum around the millennium but has decreased among women until 2008 similar to what has been observed in Sweden and Denmark. PMID- 29044038 TI - [Heart failure among elderly Icelanders: Incidence, prevalence, underlying diseases and long-term survival]. AB - INTRODUCTION: Heart failure (HF) is a common and a serious condition that predominantly affects elderly people. On the basis of the left ventricular ejection fraction (EF) it can be divided into HF with reduced or preserved ejection fraction (HFrEF and HFpEF, respectively). The goal of this study was to investigate the prevalence and incidence of HF among elderly Icelanders, explore underlying diseases and estimate the effect of HF on overall survival. MATERIAL AND METHODS: Included were 5706 participants of the AGES study. The hospital records of those diagnosed with HF before entry into AGES were used to calculate prevalence and the records of those diagnosed from entry into AGES until 28.2.2010 were used to calculate incidence. All cases of HF were verified according to predetermined criteria for diagnosis. Information on underlying diseases and EF of HF patients were obtained from hospital records. Survival was estimated using Kaplan-Meier survival curves. RESULTS: Lifetime prevalence of HF was 3.6% as of 2004, higher among men than women (p<0,001). The incidence was 16.2 cases per 1000 person-years, higher among men than among women (p<0,001). The incidence of HFrEF was 6.1 per 1000 person-years also higher among men than women (p<0,001). The incidence of HFpEF was 6.8 per 1000 person-years and there was no statistical difference between the sexes (p=0.62). The age adjusted 5-year survival rate of HF-patients was 32.5%, there was no statistical difference in relative survival between men and women (p=0.46). There was no statistical difference between the survival of patients with HFrEF and those with HFpEF (p=0.52). CONCLUSION: Both prevalence and incidence of HF are high among elderly Icelanders, increasing sharply with age and 5-year survival rate is only around 30%. While men are more likely to develop HF, especially HFrEF, women are more likely to be diagnosed with HFpEF. PMID- 29044039 TI - Myxobolus arcticus and Parvicapsula minibicornis infections in sockeye salmon Oncorhynchus nerka following downstream migration in British Columbia. AB - Factors influencing the health of sockeye salmon Oncorhynchus nerka in British Columbia, Canada, are important for fisheries management and conservation. Juvenile salmon originating from the Fraser River were screened for 3 enzootic parasites (Myxobolus arcticus, Parvicapsula minibicornis, Ceratonova shasta) and the bacterium Renibacterium salmoninarum. Fish were collected from the Strait of Georgia in 2010, 2011 and 2012 and genotyped to stock of origin. Trends in infection status were estimated by year, spawning zone and catch area. The annual prevalences of P. minibicornis (n = 1448) were 23.3, 6.5 and 8.1%, and for M. arcticus (n = 1343), annual prevalences were 40.4, 66.3 and 27.4%, respectively. Logistic regression showed that P. minibicornis was most strongly associated with salmon from the lower Fraser River spawning zone and increased with distance caught from the mouth of the Fraser River. In contrast, infection with M. arcticus was most strongly associated with salmon from the middle Fraser River spawning zone, and there was no trend related to distance from the Fraser River. Neither R. salmoninarum nor C. shasta were detected. These observations are discussed in the context of salmon life history and pathogen biology. PMID- 29044040 TI - Epizootiology of the ectoparasitic protozoans Ichthyobodo salmonis and Trichodina truttae on wild chum salmon Oncorhynchus keta. AB - Infestations of the ectoparasitic flagellate Ichthyobodo salmonis and the ciliate Trichodina truttae have caused acute mortalities of hatchery-reared juvenile chum salmon Oncorhynchus keta in Hokkaido, northern Japan. This study examined the epizootiology of I. salmonis and T. truttae on wild chum salmon as a possible infection source of the 2 parasitic protozoans in hatcheries. Infestations by both ectoparasites were detected on freshwater-adapted adult and juvenile chum salmon in all 4 rivers examined. This is the first study of an anadromous Pacific salmonid to report infestation of I. salmonis and T. truttae in adults returning for spawning. Among the marine-inhabiting phase of chum salmon, infestation with I. salmonis, but not T. truttae, was observed on adults and juveniles. The 2 protozoans were experimentally transmitted at the same time from wild to hatchery reared chum salmon juveniles, and caused a high rate of mortality in the hatchery fish. In freshwater, the proliferation rate of T. truttae was greater than that of I. salmonis. These observations show that the euryhaline ectoparasite I. salmonis can infest chum salmon throughout their life cycle, in both river and ocean habitats, whereas T. truttae is able to infest these salmonids only in freshwater. Furthermore, wild chum salmon were shown to be a potential infestation source for both T. truttae and I. salmonis in hatchery fish. PMID- 29044041 TI - Viral haemorrhagic septicaemia virus (VHSV Id) infections are detected more consistently using syndromic vs. active surveillance. AB - The eradication of viral haemorrhagic septicaemia virus (VHSV Id) from Finnish brackish-water rainbow trout Oncorhynchus mykiss farms located in the restriction zone in the Province of Aland, Baltic Sea, failed several times in the 2000s. The official surveillance programme was often unable to find VHSV-positive populations, leading to the misbelief in the fish farming industry that virus eradication could be achieved. The ability of 3 other surveillance programmes to detect infected fish populations was compared with the official programme. One programme involved syndromic surveillance based on the observation of clinical disease signs by fish farmers, while 2 programmes comprised active surveillance similar to the official programme, but included increased sampling frequencies and 2 additional tests. The syndromic surveillance concentrated on sending in samples for analysis when any sign of a possible infectious disease at water temperatures below 15 degrees C was noticed. This programme clearly outperformed active surveillance. A real-time reverse transcriptase-polymerase chain reaction method proved to be at least as sensitive as virus isolation in cell culture in detecting acute VHSV infections. An ELISA method was used to test fish serum for antibodies against VHSV. The ELISA method may be a useful tool in VHSV eradication for screening populations during the follow-up period, before declaring an area free of infection. PMID- 29044042 TI - Experimental inoculation of oriental river prawn Macrobrachium nipponense with white spot syndrome virus (WSSV). AB - The oriental river prawn Macrobrachium nipponense is an economically important species that is widely farmed in China. White spot syndrome virus (WSSV) is one of the most devastating pathogens of the cultured shrimp Litopenaeus vannamei, responsible for massive loss of its commercial products worldwide. We investigated the infectivity and pathogenicity of WSSV in adult M. nipponense using standardized conditions for L. vannamei. The median lethal dose of WSSV in adult M. nipponense was 103.84+/-0.06 copies g-1, which was about 1000-fold higher than in L. vannamei (100.59+/-0.22 copies g-1). WSSV was detected by 2 step PCR in the gills, hepatopancreas, muscle, stomach, heart, gut, nerve, integument, pereopod, eyestalk, testis, and ovary of experimentally infected dead M. nipponense. Lesions were observed histologically following WSSV injection, showing basophilic intranuclear inclusion bodies in the hepatopancreas and subsequently in the gills. The clearance of WSSV was observed in hepatopancreas and gills at 48 and 96 h post-inoculation, respectively. No histological lesions were detected in muscle from 0-96 h post-injection. The results show that the oriental river prawn M. nipponense can be infected by WSSV and the infections are self limiting over time; therefore, M. nipponense may serve as a useful model for studying resistance to WSSV. PMID- 29044043 TI - Nutrient availability modulates both host and parasite life histories in a snail trematode interaction. AB - Host nutrient availability can have important life history consequences for hosts and their parasites. The responses of each participant within the association can vary extensively across host-parasite systems. In this paper, we outline the life history responses of the aquatic snail Biomphalaria glabrata and its trematode parasite Echinostoma caproni during host nutrient restriction. The onset of host starvation had rapid and strong effects on snail reproduction, significantly reducing egg output in control snails and eliminating egg production in infected individuals. The combination of E. caproni infection and nutrient restriction also had a dramatic effect on B. glabrata survival, with starved infected snails dying at a faster rate than hosts from any other treatment. In terms of parasite reproduction, host nutrient restriction did not influence the quantity of parasite larvae produced after starvation onset but did influence parasite quality, reducing both larval swimming time and overall longevity. Together these results demonstrate that nutrient restriction can strongly influence both host and parasite life histories, and therefore should be considered in future studies attempting to understand patterns of disease in host populations. PMID- 29044044 TI - Seawater detection and biological assessments regarding transmission of the oyster parasite Mikrocytos mackini using qPCR. AB - Mikrocytos mackini is an intracellular parasite of oysters and causative agent of Denman Island disease in Pacific oysters Crassostrea gigas. Although M. mackini has been investigated for decades, its natural mode of transmission, mechanism for host entry, and environmental stability are largely unknown. We explored these biological characteristics of M. mackini using a recently described quantitative PCR (qPCR) assay. We detected M. mackini in the flow-through tank water of experimentally infected oysters and during disease remission in host tissues following 6 wk of elevated water temperature. Waterborne exposure of oysters to M. mackini further confirmed the potential for extracellular seawater transmission of this parasite and also identified host gill to have the highest early and continued prevalence for M. mackini DNA compared to stomach, mantle, labial palps, or adductor muscle samples. However, infections following waterborne challenge were slow to develop despite a substantial exposure (>106 M. mackini l-1 for 24 h), and further investigation demonstrated that M. mackini occurrence and infectivity severely declined following extracellular seawater incubation of more than 24 h. This study demonstrates a potential for using qPCR to monitor M. mackini in wild or farmed oyster populations during periods of disease remission or from environmental seawater samples. This work also suggests that gill tissues may provide a primary site for waterborne entry and possibly shedding of M. mackini in oysters. Further, although extracellular seawater transmission of M. mackini was possible, poor environmental stability and infection efficiency likely restricts the geographic transmission of M. mackini between oysters in natural environs and may help to explain localized areas of infection. PMID- 29044045 TI - Emergence of carp edema virus (CEV) and its significance to European common carp and koi Cyprinus carpio. AB - Carp edema virus disease (CEVD), also known as koi sleepy disease, is caused by a poxvirus associated with outbreaks of clinical disease in koi and common carp Cyprinus carpio. Originally characterised in Japan in the 1970s, international trade in koi has led to the spread of CEV, although the first recognised outbreak of the disease outside of Japan was not reported until 1996 in the USA. In Europe, the disease was first recognised in 2009 and, as detection and diagnosis have improved, more EU member states have reported CEV associated with disease outbreaks. Although the structure of the CEV genome is not yet elucidated, molecular epidemiology studies have suggested distinct geographical populations of CEV infecting both koi and common carp. Detection and identification of cases of CEVD in common carp were unreliable using the original PCR primers. New primers for conventional and quantitative PCR (qPCR) have been designed that improve detection, and their sequences are provided in this paper. The qPCR primers have successfully detected CEV DNA in archive material from investigations of unexplained carp mortalities conducted >15 yr ago. Improvement in disease management and control is possible, and the principles of biosecurity, good health management and disease surveillance, applied to koi herpesvirus disease, can be equally applied to CEVD. However, further research studies are needed to fill the knowledge gaps in the disease pathogenesis and epidemiology that, currently, prevent an accurate assessment of the likely impact of CEVD on European koi and common carp aquaculture and on wild carp stocks. PMID- 29044046 TI - Locally extensive meningoencephalitis caused by Miamiensis avidus (syn. Philasterides dicentrarchi) in a zebra shark. AB - Scuticociliatosis, caused by ciliated protozoa in the subclass Scuticociliatia of the phylum Ciliophora, can cause fatal disease in teleost fish species. However, information on scuticociliatosis in elasmobranchs is still scarce. In this report, we describe a case of locally extensive meningoencephalitis caused by Miamiensis avidus (syn. Philasterides dicentrarchi) in a 2 yr old captive zebra shark Stegostoma fasciatum. Granulocytic meningoencephalitis was observed through histological assessment. Inflammation was confined to the ventral aspect of the brain with a large number of ciliated protozoa, transforming into non-suppurative meningitis in the lateral aspect, and gradually vanished in the dorsal aspect. No histopathological and polymerase chain reaction (PCR) evidence of systemic dissemination of M. avidus was found. PCR targeting the gene coding the small subunit ribosomal RNA (SSUrRNA) of M. avidus was performed on the brain, liver, and gill tissues, and only brain tissue yielded a positive result. The DNA sequences from amplicons of the protozoal SSUrRNA gene were completely matched to that of M. avidus. The distribution of protozoa in the current case was mainly located in the brain and suggests the possibility of a direct neural invasive pathway of M. avidus through the nasal cavity/ampullary system and/or a unique tissue tropism of M. avidus specific to the brain in zebra sharks. Further investigations on the pathogenesis of M. avidus in elasmobranchs, especially zebra sharks, are needed. PMID- 29044048 TI - Proceedings of the seminar on comparative assessment of the environmental impact of radionuclides released during three major nuclear accidents: Kyshtym, Windscale, Chernobyl (October 1990). PMID- 29044047 TI - Scaling and the frequency dependence of Nyquist plot maxima of the electrical impedance of the human thigh. AB - OBJECTIVE: To define and elucidate the properties of reduced-variable Nyquist plots. APPROACH: Non-invasive measurements of the electrical impedance of the human thigh. A retrospective analysis of the electrical impedances of 154 normal subjects measured over the past decade shows that 'scaling' of the Nyquist plots for human thigh muscles is a property shared by healthy thigh musculature, irrespective of subject and the length of muscle segment. Here the term scaling signifies the near and sometimes 'perfect' coalescence of the separate X versus R plots into one 'reduced' Nyquist plot by the simple expedient of dividing R and X by X m , the value of X at the reactance maximum. To the extent allowed by noise levels one can say that there is one 'universal' reduced Nyquist plot for the thigh musculature of healthy subjects. MAIN RESULTS: There is one feature of the Nyquist curves which is not 'universal', however, namely the frequency f m at which the maximum in X is observed. That is found to vary from 10 to 100 kHz. depending on subject and segment length. Analysis shows, however, that the mean value of 1/f m is an accurately linear function of segment length, though there is a small subject-to-subject random element as well. Also, following the recovery of an otherwise healthy victim of ankle fracture demonstrates the clear superiority of measurements above about 800 kHz, where scaling is not observed, in contrast to measurements below about 400 kHz, where scaling is accurately obeyed. SIGNIFICANCE: The ubiquity of 'scaling' casts new light on the interpretation of impedance results as they are used in electrical impedance myography and bioelectric impedance analysis. PMID- 29044049 TI - Acute in vivo testing of a conformal polymer microelectrode array for multi region hippocampal recordings. AB - OBJECTIVE: The success of a cortical prosthetic device relies upon its ability to attain resolvable spikes from many neurons in particular neural networks over long periods of time. Traditionally, lifetimes of neural recordings are greatly limited by the body's immune response against the foreign implant which causes neuronal death and glial scarring. This immune reaction is posited to be exacerbated by micromotion between the implant, which is often rigid, and the surrounding, soft brain tissue, and attenuates the quality of recordings over time. APPROACH: In an attempt to minimize the foreign body response to a penetrating neural array that records from multiple brain regions, Parylene C, a flexible, biocompatible polymer was used as the substrate material for a functional, proof-of-concept neural array with a reduced elastic modulus. This probe array was designed and fabricated to have 64 electrodes positioned to match the anatomy of the rat hippocampus and allow for simultaneous recordings between two cell-body layers of interest. A dissolvable brace was used for deep-brain penetration of the flexible array. MAIN RESULTS: Arrays were electrochemically characterized at the benchtop, and a novel insertion technique that restricts acute insertion injury enabled accurate target placement of four, bare, flexible arrays to greater than 4 mm deep into the rat brain. Arrays were tested acutely and in vivo recordings taken intra-operatively reveal spikes in both targeted regions of the hippocampus with spike amplitudes and noise levels similar to those recorded with microwires. Histological staining of a sham array implanted for one month reveals limited astrocytic scarring and neuronal death around the implant. SIGNIFICANCE: This work represents one of the first examples of a penetrating polymer probe array that records from individual neurons in structures that lie deep within the brain. PMID- 29044050 TI - On atomic mechanisms governing the oxidation of Bi2Te3. AB - Oxidation of Bi2Te3 (space group R-3m) has been investigated using experimental and theoretical means. Based on calorimetry, x-ray photoelectron spectroscopy and thermodynamic modelling, Bi2Te3 is at equilibrium with Bi2O3 and TeO2, whereby the most stable compound is Bi2Te3, followed by Bi2O3. Hence, the reactivity of Bi towards oxygen is expected to be higher than that of Te. This notion is supported by density functional theory. The strongest bond is formed between Bi and Te, followed by Bi - O. This gives rise to unanticipated atomic processes. Dissociatively adsorbed oxygen diffuses through Bi and Te basal planes of Bi2Te3(0001) and preferably interacts with Bi. The Te termination considerably retards this process. These findings may clarify conflicting literature data. Any basal plane off-cut or Bi terminations trigger oxidation, but a perfect basal cleavage, where only Te terminations are exposed to air, may be stable for a longer period of time. These results are of relevance for applications in which surfaces are of key importance, such as nanostructured Bi2Te3 thermoelectric devices. PMID- 29044051 TI - Ocular surface squamous neoplasia: Are we calling a spade a spade? PMID- 29044052 TI - Management of nasolacrimal duct obstruction in children: How is it changing? PMID- 29044053 TI - Fungal keratitis: The Aravind experience. AB - Research becomes very significant and meaningful when it addresses a significant public health problem of a region. Fungal keratitis is a serious problem affecting the agrarian poor and hence requires attention from public health specialists. The approach to a public health issue should focus not only on treatment but also prevention or at least show a significant thrust to reduce the morbidity of the problem. At our institution, we have developed a special interest in fungal keratitis and tried to study it in a multitude of aspects. As we put the pieces of the puzzle together, we believe that interest will be rekindled among policymakers, clinicians, microbiologists, pharmaceutical industry, and basic scientists to work together to join forces and take up an integrative approach to managing this problem. It is also believed that the article underscores the need and importance of having a focused approach to ensuring a successful career in clinical research. PMID- 29044054 TI - Role of intravitreal/intracameral antibiotics to prevent traumatic endophthalmitis - Meta-analysis. AB - Traumatic endophthalmitis is a devastating condition that can occur following an open globe injury and result in loss of vision. The use of prophylactic antibiotics is empirical as most surgeons fear complications associated with the same. No systematic review has been performed in English on the role of intravitreal/intracameral antibiotics in preventing traumatic endophthalmitis. We searched for randomized controlled trials and controlled clinical trials comparing intracameral/intravitreal antibiotics with placebos on PubMed, Google Scholar, Science Direct, and Cochrane Library using keywords open globe/trauma/penetrating/perforating injuries endophthalmitis. The last search was on 5 May 2017. We included patients of all ages with open globe injuries who received intracameral/intravitreal antibiotics, regardless of the dose. Quality of the trials was assessed using Cochrane collaboration tools to assess the risk of bias. The main outcome measures were endophthalmitis and visual acuity. We included three trials. Overall, intravitreal/intracameral antibiotics were noted to significantly reduce the occurrence of endophthalmitis in open globe injuries (relative risk [RR] 0.19, 95% confidence interval [CI] 0.06-0.57). The use of intravitreal/intracameral antibiotics did not have an effect in improving visual acuity (RR 1.17, 95% CI 0.61-2.23). Two trials (Narang 2003; Soheilan 2001) were observed to have no significant effect on visual acuity while another trial (Soheilan 2007) did not list visual acuity as part of its objectives. Intracameral/intravitreal antibiotics reduce the risk of endophthalmitis in open globe injuries; although, there was no improvement in the visual acuity. We, therefore, recommend the use of intravitreal/intracameral injections in open globe injuries to prevent this devastating complication. PMID- 29044055 TI - Assessment of BicC family RNA binding protein 1 and Ras protein specific guanine nucleotide releasing factor 1 as candidate genes for high myopia: A case-control study. AB - PURPOSE: The aim is to evaluate the association between high myopia and genetic variant in the BicC family RNA binding protein 1 (BICC1) as well as its association with Ras protein specific guanine nucleotide releasing factor 1 (RASGRF1) genes in a Chinese Han population with a case-control study. METHODS: Five TagSNPs in BICC1 and RASGRF1 genes were selected and genotyped in 821 unrelated subjects, which composed of 419 controls (spherical equivalent within +/-1.00 D in both eyes and axial length ?24.0 mm) and 402 cases (spherical equivalent <=-6.0D in at least one eye and axial length >=26.0 mm). Statistical analysis was performed with SNPstats. RESULTS: After an analysis adjusted by age and sex, rs4245599 in BICC1 was found to be significantly associated with high myopia under the codominant, dominant, recessive and log-additive model (P = 0.001, 0.0015, 0.0045 and 2e-04, odds ratio [OR] = 2.15, 1.59, 1.73 and 1.46, respectively), and rs10763559 in BICC1 was associated with high myopia and under the dominant and log-additive model (P = 0.032 and 0.036, OR = 0.72 and 0.78, respectively). Rs4778879 in RASGRF1 was found to be significantly associated with high myopia under codominant, dominant, recessive, and log-additive model (P = 0.0088, 0.0065, 0.026, and 0.0021, OR = 1.87, 1.48, 1.56, and 1.37, respectively). However, no significant association was found between rs745030 in RASGRF1 and high myopia, neither was there any association of rs745029 in RASGRF1. CONCLUSION: The present study indicated that genetic variants in BICC1 and RASGRF1 are closely associated with high myopia, which appears to be a potential candidate for high myopia in Chinese Han population. Considering the small sample size of this study, further work is needed to validate our results. The function of BICC1 and RASGRF1 in the process of developing high myopia needs to be explored in the future. PMID- 29044056 TI - Association of polymorphisms in the intron of TCF4 gene to late-onset Fuchs endothelial corneal dystrophy: An Indian cohort study. AB - PURPOSE: Fuchs endothelial corneal dystrophy (FECD) is a progressive degenerative disease of the corneal endothelium. It is genetically heterogeneous and follows either an autosomal dominant or sporadic pattern of inheritance. Here, we have explored the association of four previously reported intronic single nucleotide polymorphisms and intronic CTG repeat expansions in TCF4 gene to FECD in an Indian cohort. METHODS: The cohort consisting of 52 sporadic late-onset cases, 5 early-onset cases, and 148 controls was taken for the study. rs2286812 and rs613872 were genotyped by allele specific polymerase chain reaction (ASPCR) and PCR-based restriction digestion, respectively; rs17595731 and rs9954153 were genotyped by Taqman assay using real-time PCR. The quantitative assessment of the CTG repeat region was performed by PCR/Sanger DNA sequencing. The repeats were assessed qualitatively by short tandem repeat and triplet repeat primed PCR assays. The statistical analysis was performed using two-tailed Fisher's exact probability test. RESULTS: SNPsrs613872 (G/T) for the 'G' allele (P value: 4.57 * 10-5) and rs17595731 (C/T) for the 'C' allele (P value: 1.87 * 10-5), respectively, showed a significant association to sporadic late-onset FECD. CTG repeat expansions were found to be associated with FECD with a P value = 2.4 * 10 3. CONCLUSION: rs613872, rs17595731, and CTG repeat expansions in intronic region of TCF4 are associated with increased risk of sporadic late-onset FECD in the Indian cohort studied. PMID- 29044057 TI - Clinicodemographic profile and treatment outcome in patients of ocular surface squamous neoplasia. AB - PURPOSE: The aim is to study the clinicodemographic profile and treatment outcome of ocular surface squamous neoplasia (OSSN). METHODS: This was a retrospective observational study of 57 eyes (56 cases) with clinically diagnosed OSSN, presenting in our center over the past year. RESULTS: The median age of presentation was 55 years with male:female ratio being 4.5:1. Systemic predisposing conditions were xeroderma pigmentosa (1) postkidney transplant immunosuppression (1), and human immunodeficiency virus infection (1). Patients with predisposing conditions had a younger median age of onset (33 years). The majority of tumors were nodular (61.4%), gelatinous (61.4%), and had limbal involvement (96%). On ultrasound biomicroscopy (UBM), mean tumor height was 2.93 +/- 1.02 mm, and intraocular extension was evident in seven eyes. OSSN with intraocular extension had a mean tumor height of 4.3 +/- 1.32 mm. Nodal metastasis was seen in one case at presentation. As per American Joint Committee for Cancer Classification seventh edition staging-two cases were T1, one was T2, 46 were T3 and eight were T4. Treatment advised included conservative therapy for 39; wide local excision (4 mm margin clearance) with cryotherapy for seven; enucleation in four; and exenteration in four eyes. Overall, complete regression was achieved in 88% of cases during a mean follow-up of 13.5 +/- 4.6 months. Recurrence was seen in three cases, which were treated with exenteration, radical neck dissection, and palliative chemo-radiotherapy, respectively. CONCLUSION: Although associated with old age, earlier onset of OSSN is seen in patients with systemic predisposing conditions. Thicker tumors in the setting of a previous surgery or immunocompromised status should be considered high-risk features for intraocular extension and should be evaluated on UBM. PMID- 29044058 TI - Femtosecond laser-assisted cataract surgery versus 2.2 mm clear corneal phacoemulsification. AB - PURPOSE: Phacoemulsification is the surgical procedure of choice for cataract, providing excellent visual and safety outcomes. Femtosecond laser-assisted cataract surgery (FLACS) is an addition to the surgical armamentarium. The study aims to compare the outcomes of FLACS using LenSxTM (Alcon Inc., USA) to standard 2.2 mm clear corneal phacoemulsification. Prospective case-control, comparative, interventional study was conducted in a tertiary care center. METHODS: In each group, 55 eyes of 55 patients underwent cataract surgery using either FLACS or conventional phacoemulsification (control group). The primary outcome variables, uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), specular microscopy, pachymetry, mean absolute error (MAE), and anterior chamber depth (ACD) were compared between two groups at 4 weeks postoperatively. Intraoperative effective phaco time (EPT), postoperative circularity of the rhexis, capsular overlap over the edge of the intraocular lens (IOL), and decentration of the IOL were the secondary variables which were compared. RESULTS: No significant difference was found between the groups for UCVA, pachymetry, MAE, and ACD at 4 weeks postoperatively. The FLACS group had better BCVA (P = 0.0294). Circularity of capsulorrhexis (P = 0), circular overlap over the edge of IOL (P = 0), and centration of IOL (P = 0.002) at 4 weeks postoperatively were better in the FLACS group. EPT was lower in FLACS for similar grade of cataract (P = 0). Endothelial cell loss in FLACS group was 4.2% more (P = 0.032). CONCLUSIONS: FLACS is superior to conventional phaco in the circularity of rhexis, capsular overlap, and centration of the IOL and uses less EPT. However, conventional phacoemulsification is equivalent to FLACS in most other parameters. PMID- 29044059 TI - Pathology and immunohistochemistry of capsular bag in spontaneously late dislocated capsular bag-intraocular lens complex. AB - PURPOSE: Our study aims to evaluate the morphology, histopathology, and immunohistochemistry of the spontaneously late dislocated capsular bag intraocular lens (CB-IOL) complex. Various etiologies and possible pathogenesis of the event are also discussed. METHODS: This was a tertiary-care setting and retrospective observational case series. The surgically explanted intact specimens of spontaneously late dislocated CB-IOL complex were studied. The demographics, duration of pseudophakia, IOL design/material, and specimen measurements were noted. Fresh specimens were photographed, and computer software was used for measurements. After processing, a detailed microscopic examination was carried out for three different sections of each specimen with hematoxylin and eosin (H and E), Masson's-trichrome, and immunohistochemistry stain for vimentin. The Mann-Whitney U-test was used for the statistical analysis. RESULTS: Of 12 specimens, the mean CB and capsulorhexis opening size were 8.32 +/- 0.8 mm and 3.62 +/- 0.61 mm, respectively. The average CB-IOL complex size of our study was significantly lower than the studies reported in the literature (P <= 0.001). All (n = 12, 100%) were acrylic IOLs with 11 (91.67%) having single-piece design. All specimens on H and E stain showed extensive subepithelial fibrosis while Masson's trichrome staining showed that none had any pseudoexfoliation material. The circumferential sphincter-like fibrous tissue arrangement was seen in all specimens. Immunohistochemical expression of vimentin suggested the mesenchymal metaplasia of epithelial A-cells. CONCLUSION: Significant fibrotic contraction of the CB and phimosis of capsulorhexis may cause a progressive zonular tear. This is probably the most important etiology of spontaneous late dislocation of the CB IOL complex. PMID- 29044060 TI - Interocular symmetry of retinal nerve fiber layer and optic nerve head parameters measured by Cirrus high-definition optical coherence tomography in a normal pediatric population. AB - PURPOSE: To determine interocular differences in the retinal nerve fiber layer (RNFL) and optic nerve head (ONH) parameters in a pediatric population using Cirrus high-definition optical coherence tomography (HD-OCT). METHODS: Seventy normal Indian children aged 5-17 years presenting to the Pediatric Clinic were included in this observational cross-sectional study. All subjects underwent a comprehensive ophthalmologic examination and an evaluation of the RNFL and ONH by Cirrus HD-OCT. Differences between the right and left eyes were calculated and values were compared by means of a paired t-test. Subjects were also divided into two groups based on age (under or over 10 years of age). Interocular differences in RNFL and ONH parameters together with sex and age variations for these differences were determined. RESULTS: The mean age of studied pediatric population was 11.83 +/- 3.3 years (range 5-17). Average RNFL thickness was 94.46 +/- 8.7 MUm (+/- SD) (range 77-111). Differences in the average RNFL between right and left eyes were not statistically significant (P = 0.060). Superior quadrant RNFL was thicker in the left eye and temporal quadrant was thicker in the right eye. Among ONH parameters, there were no statistically significant differences in any parameters, except vertical cup-disc (CD) ratio which was significant (P = 0.007). The 2.5%-97.5% limits of asymmetry were 9 MUm for average RNFL, 0.14 for average CD ratio, and 0.22 for vertical CD ratio. Mean interocular RNFL thickness differences in superior, superior nasal, and temporal superior quadrants were 10.61 (P < 0.001), 12.57 (P < 0.001), and 4.46 (P = 0.002) MUm, respectively. Interocular nerve fiber layer thickness differences were not significantly correlated with sex, while only significant differences with age were observed in 12 clock hour sector analysis, mainly in nasal inferior and inferior quadrant. CONCLUSIONS: We report the degree of interocular symmetry of RNFL and ONH parameters measured by Cirrus HD-OCT in a healthy pediatric population. The normal interocular RNFL asymmetry should not exceed 9 MUm and vertical CD ratio beyond 0.22 should be considered for further investigations. The physiologic asymmetry provided by this study may assist in identifying changes in RNFL thickness and ONH parameters in pediatric glaucoma and ONH disorders. PMID- 29044061 TI - Long-term scanning laser ophthalmoscopy and perimetry in different severities of primary open and chronic angle closure glaucoma eyes. AB - PURPOSE: To determine rate of change over time on scanning laser ophthalmoscopy, HRT, compared to perimetry, and to determine incidence, parametric changes, and risk factors for progression in primary open angle glaucoma (POAG) and chronic primary angle closure angle glaucoma (CPACG) eyes. METHODS: Prospective clinical study of 116 POAG eyes and 129 CPACG eyes of different severities of glaucoma. Standard automated perimetry and optic nerve head topography were studied at baseline and thereafter every 6 months. Changes in HFA and HRT parameters, in response to IOP, were compared over at least 5 years. RESULTS: Fourteen POAG eyes (12.1%) and 20 CPACG eyes (15.5%) showed progression on SAP over time. Percentage drop of IOP was similar in eyes that progressed and in stable eyes. The change in MD in CPACG eyes was 1.8 dB/year on SAP and 1.36 dB/year in POAG eyes, P = 0.1. Twenty-nine eyes showed progression on HRT with 24 confirmed on SAP. Trend analysis picked up progression more frequently than other HRT parameters. Eyes that progressed in both groups, in all severities of glaucoma, had intermittent fluctuations of >= 4 mmHg over mean IOP on >=3 follow up visits, P <= 0.001. CONCLUSION: IOP fluctuations of >= 4 mmHg over the mean IOP and duration of disease were associated with progression in POAG and CPACG eyes. PMID- 29044062 TI - Changing epidemiology of neovascular glaucoma from 2002 to 2012 at King Khaled Eye Specialist Hospital, Saudi Arabia. AB - PURPOSE: The aim is to present the incidence and determinants of neovascular glaucoma (NVG) in Saudi Arabia. METHODS: A retrospective review of NVG cases (2002-2012) was included to estimate the incidence. The determinants included gender, age, comorbidities, lens status, type of NVG, and visual acuity on presentation. The impact of antiangiogenic therapy on NVG incidence was studied. RESULTS: We studied 597 eyes with NVG. The incidence was 6.6/10,000. It declined from 13/10,000 in 2008-0.1/10,000 in 2012 (P < 0.001). The decline in 2008 coincided with the introduction of intravitreal injection bevacizumab in Saudi Arabia. Males had a significantly higher NVG risk (odds ratio [OR] = 2.2). Diabetes and hypertension were associated with NVG in 88% and 42.7% of cases, respectively. In 377 (72%) diabetic patients, the glycemic control was poor (HbA1C >7%). Visual acuity was 20/20-20/40 in 14 (2%), 20/50-20/200 in 79 (13%), 20/200-20/400 in 456 (76%), and <20/400 in 45 (7%) eyes. Intraocular pressure was higher than 30 mmHg in 438 (73%) eyes. The cup-to-disc (CD) ratio was >0.8 in 86 (14%) eyes. During the early period (2002-2007) and later period (2008-2012), CD ratio (chi2 = 4, P = 0.09) and anterior chamber angle (P = 0.8) were not different. The presence of NVG in contralateral eye (OR = 0.8, P = 0.3) in both periods was similar. CONCLUSIONS: NVG was associated with diabetes in a very large proportion of patients. It was significantly associated with males, and with poor glycemic control and poor vision at presentation. The incidence of NVG declined after the introduction of intravitreal bevacizumab. PMID- 29044063 TI - Cognitive functions and normal tension glaucoma. AB - PURPOSE: Only a few studies have analyzed the potential link between glaucoma and cognitive function impairment. They have found controversial results. This study aims to perform quick cognitive function assessment with clock drawing test (CDT) using two different scoring systems and compare between normal tension glaucoma (NTG) and cataract patients. METHODS: Totally, 30 NTG and 30 patients with cataracts were included in a prospective, pilot study. The predrawn circle was given, and patients were asked to draw the clock showing a time of 11:10. The test was evaluated using two methods - Freund method using a 7-point scoring scale (optimal cutoff <=4) and Rakusa using a 4-point scoring scale (optimal cutoff <=3). The level of significance was set at P < 0.05. RESULTS: CDT result was significantly better in cataract group than in NTG group: 3.5 (2) versus 2 (2) by Freund, (P = 0.003) and 6.5 (1) versus 4.5 (2.75) by Rakusa, respectively (P = 0.004). Sixty percent (n = 18) of NTG group and 10% (n = 3) of cataract group patients completed the CDT in the specific picture manner (the short hand on 11 and the long hand between 11 and 12), (P = 0.001). CONCLUSIONS: Lower CDT results were seen in NTG patients according to two different scoring systems. NTG patients showed a specific manner of drawing. Further prospective studies are needed to investigate the CDT reliability as fast screening test of cognitive function impairment in glaucoma patients. PMID- 29044064 TI - Utility of angiotensin-converting enzyme activity in aqueous humor in the diagnosis of ocular sarcoidosis. AB - PURPOSE: Many studies include elevated activity of angiotensin-converting enzyme (ACE) in serum in sarcoidosis and in ocular sarcoidosis as well, but there are only a few analyzing ACE activities in aqueous humor. The aim of this study is to illuminate the diagnostic value of ACE in aqueous humor in patients with ocular sarcoidosis. METHODS: We analyzed twenty patients with ocular sarcoidosis and 18 patients with nonocular involvement. All patients have biopsy-positive sarcoidosis of the lungs and/or mediastinal lymph nodes. Blood samples for ACE serum levels were obtained from all patients. Aqueous humor samples were taken by paracentesis with a 25-gauge needle in local anesthesia. With appropriate statistical tests, we compared ACE activity in serum and aqueous humor in patients with and without ocular sarcoidosis. RESULTS: The majority of our patients with ocular sarcoidosis were female (12/20), also in the group with systemic sarcoidosis and without ocular involvement (12/6). Mean age of the whole analyzed group of sarcoidosis patients was 45 +/- 6 years. There is no statistically significant difference in ACE activity in serum between two groups of patients (with and without ocular sarcoidosis). There is statistically significant difference in ACE activity in aqueous humor among patients with ocular and nonocular sarcoidosis. ACE activity in aqueous humor is significantly higher in patients with ocular sarcoidosis. CONCLUSION: Increased ACE activity in aqueous humor can point to a diagnosis of ocular sarcoidosis, without the need for ocular biopsy. PMID- 29044065 TI - The adverse effects of valproic acid on visual functions in the treatment of retinitis pigmentosa. AB - PURPOSE: To evaluate the efficacy and safety of valproic acid (VPA) treatment in patients with retinitis pigmentosa (RP). METHODS: A total of 48 eyes of 24 patients (13 males, 11 females) with RP prescribed VPA were included. The length of VPA treatment was 6-12 months (mean 9.4 months). Parameters evaluated were best-corrected visual acuity (BCVA) (logarithm of the minimum angle of resolution [logMAR]), visual field analyses (VFAs) with Humprey automated perimetry, multifocal electroretinography (ERG) with Roland-RETI scan, and VPA side effects. RESULTS: Mean age was 34.3 +/- 10.3 years (range 18-56 years). Fifteen of the patients (30 eyes) had two ERG and VFA tracings, allowing comparison between baseline and follow-up (range 6-12 months). Mean BCVA before and after VPA therapy was 0.36 +/- 0.38 and 0.36 +/- 0.37 logMAR, respectively (P = 0.32). Quantitative perimetric indices including mean deviation and pattern standard deviation were not significantly changed after VPA therapy (P > 0.05). P1 amplitudes (in terms of nV/deg2 and mV) of ERG waves were significantly decreased in the rings 1, 3, and 4 after VPA therapy (P < 0.05). Regarding the N1 amplitudes, the only significant decrease was observed in area 1 (P = 0.03). In addition, N1 latency was significantly increased in area 3 after VPA therapy (P = 0.04). CONCLUSIONS: VPA therapy did not have any significant benefit on BCVA and VFA. In addition, it may be associated with decline in some ERG parameters. Therefore, physicians should avoid prescribing VPA for RP until its safety and efficacy are appropriately evaluated. PMID- 29044066 TI - Color vision abnormalities in type II diabetes: Sankara Nethralaya Diabetic Retinopathy Epidemiology and Molecular Genetics Study II report no 2. AB - PURPOSE: The purpose of this study is to assess color vision abnormalities in a cohort of subjects with type II diabetes and elucidate associated risk factors. METHODS: Subjects were recruited from follow-up cohort of Sankara Nethralaya Diabetic Retinopathy Epidemiology and Molecular Genetics Study I. Six hundred and seventy-three eyes of 343 subjects were included from this population-based study. All subjects underwent detailed ophthalmic evaluation, including the Farnsworth-Munsell 100 hue test. RESULTS: The prevalence of impaired color vision (ICV) was 43% (CI: 39.2-46.7). Risk factors for ICV were higher heart rate (odds ratio [OR]: 1.043, [1.023-1.064]) and a higher intraocular pressure (IOP) (OR: 1.086, [1.012-1.165]). Subjects with clinically significant macular edema (CSME) had three times higher chance of having ICV. C1, C2, and C3 are the commonly found Early Treatment Diabetic Retinopathy Study (ETDRS) patterns. The moment of inertia method showed that the angle did not reveal any specific pattern of color vision defect. Although the major and minor radii were high in those with ICV, we did not observe polarity. Confusion index was high in subjects with ICV, indicating a severe color vision defect. CONCLUSIONS: The prevalence of ICV was 43% among subjects with type II diabetes. The most commonly observed patterns were increasing severities of the blue-yellow defect on ETDRS patterns, but no specific pattern was observed at the moment of inertia analysis. The presence of CSME, a higher heart rate, and IOP was significant risk factors for ICV. This functional impairment in color vision could significantly contribute to morbidity among subjects with diabetes. PMID- 29044067 TI - Improvement in distance and near visual acuities using low vision devices in diabetic retinopathy. AB - PURPOSE: The aim of this study is to elucidate the causes and level of visual impairment (VI) in patients with different pathologies of diabetic retinopathy (DR) who presented to a low vision care (LVC) clinic, to analyze the type of distant and near devices prescribed to them and the visual benefits thereof. METHODS: A retrospective chart review was done for 100 consecutive patients with DR who were referred to the LVC clinic from June 2015 to June 2016. The reason for referral was assessed from the electronic medical records and available fundus photographs, fundus fluorescein angiograms, and optical coherence tomography images by a retina specialist. The details of low-vision devices and subsequent improvements were noted. RESULTS: Of the 100 patients, 52% had moderate VI, 19% mild VI, 16% severe VI, and 13% had profound VI or blindness. The most commonly prescribed low vision device was half-eye spectacles (38.4%). The pathologies which had statistically significant improvement (P < 0.05) in distance vision with low vision devices were DR with disc pallor (4.4% improvement), ischemic maculopathy (11.9% improvement), and plaque of hard exudate (10.1% improvement). However, in all pathologies, there was statistically significant improvement (P < 0.05) in near vision. CONCLUSION: Usually, the patients with DR presented to the LVC clinic with moderate VI. The use of low vision devices can help these patients in cases where medical and surgical treatment have no or a limited role in restoring useful vision. PMID- 29044068 TI - Needle stick injuries in a tertiary eye-care hospital: Incidence, management, outcomes, and recommendations. AB - PURPOSE: The purpose of this study is to assess the incidence, management, and outcomes for needle stick injuries (NSIs) in a tertiary eye-care hospital and provide appropriate recommendations for its prevention. METHODS: This was a retrospective database review of NSI recorded between 2010 and 2015 at a tertiary eye care center. All staff members who had NSI were managed with standard treatment protocol. The mode, location, health-care workers affected and/or at risk for NSI were analyzed. RESULTS: One hundred and forty NSI were reported between 2010 and 2015, with ophthalmic fellows under training encountering maximum needle pricks (n = 33; 24%), followed by nursing staff (n = 32; 23%), and consultants (n = 30; 21%). Location wise, the highest incidence of NSI was found in the operating room (n = 94; 67%), followed by the laboratory (n = 17; 12%), and patients' ward (n = 14; 10%). Maximum pricks (n = 10; 20%) occurred while passing sharp instruments, anterior segment surgeons (n = 23; 79%) being affected more than posterior segment surgeons (n = 6; 21%). None of the NSI incidents was attributed to anti-VEGF injections. None of the subjects with NSI had seroconversion to hepatitis B surface antigen, human immunodeficiency virus, or hepatitis C virus in the 5-year study period. CONCLUSIONS: NSI is the most commonly encountered in the operating room among training personnel while passing sharp instruments, especially anterior segment surgeons. A proper needle/sharp disposal mechanism, documentation of adverse event, on-going staff training, and prompt prophylactic treatment are essential components of the protocol for NSI management. PMID- 29044069 TI - Primary nonendoscopic endonasal versus external dacryocystorhinostomy in nasolacrimal duct obstruction in children. AB - PURPOSE: The aim is to compare the outcome of nonendoscopic endonasal dacryocystorhinostomy (NEN DCR) with external DCR (EXT-DCR) in the treatment of nasolacrimal duct obstruction (NLDO) in children. METHODS: A retrospective, comparative chart analysis of all consecutive children <16 years after EXT-DCR or NEN-DCR between June 2012 and February 2016. RESULTS: Seventy-one children (79 eyes) underwent DCR in the study, of which 37 children (40 eyes) underwent EXT DCR and 34 (39 eyes) NEN-DCR. Mean age of both groups (8.7 vs. 7.7 years) was comparable. Etiologically, persistent congenital NLDO was the most common indication (50% vs. 72%), followed by acquired and secondary NLDO. Mean duration was shorter for NEN-DCR (47 vs. 37 min; P = 0.0021). Mitomycin C 0.04% was used more often in NEN-DCR (10% vs. 56.41%). Success after primary EXT-DCR was 100% as compared to 75% for primary NEN-DCR at median follow-up of 12 and 16 months respectively. At revision, the main cause of failure was granuloma (60%). After revision, all eyes were symptom-free at a median follow-up of 9.5 months. CONCLUSION: Primary NEN-DCR has a poorer outcome than EXT-DCR in the treatment of NLDO in children and is more likely to need a revision procedure. PMID- 29044070 TI - Pediatric dacryocystorhinostomy. PMID- 29044071 TI - Prevalence of spheroidal degeneration of cornea and its association with other eye diseases in tribes of Western Rajasthan. AB - PURPOSE: To determine the prevalence of spheroidal degeneration of cornea (SDC) and its association with other eye diseases in the tribes of South-West Rajasthan. METHODS: A total of 5012 patients were examined on slit lamp for the diagnosis of SDC. Diagnosis of SDC was made based on presence of amber granules in the superficial stroma of peripheral interpalpebral cornea with increasing opacification, coalescence and central spread or nodular and hazy surrounding stroma and divided in three stages. RESULTS: The prevalence of SDC was 10.7%. Around 55% of the total of 535 cases examined were found to have Stage I followed by Stage II (32%) and Stage III (13%). The prevalence is greatest in both men and women over 70 years of age. The severity of SDC is greater in men. SDC was significantly associated with pterygium and pseudocapsular exfoliation. CONCLUSION: Extreme temperature, low humidity, dust, high wind, and microtrauma caused by sand particles are the probable etiologies for higher prevalence of this kind of degeneration in this region. PMID- 29044072 TI - Novel technique of smartphone-based high magnification imaging of the eyelid lesions. PMID- 29044073 TI - Type 2 big bubble deep anterior lamellar keratoplasty-serial anterior segment optical coherence tomography documentation showing resolution of bubble in the postoperative period. PMID- 29044074 TI - Anterior capsule rupture: Does this ring, ring a bell? PMID- 29044075 TI - Fundus autofluorescence imaging of subinternal limiting membrane hemorrhage in anemic retinopathy. PMID- 29044076 TI - Vitreous opacities causing artifacts in optical coherence tomography angiography. PMID- 29044077 TI - Ophthalmic manifestations in Rothmund-Thomson syndrome: Case report and review of literature. AB - A 24-year-old male patient presented to us with diminution of vision in both eyes with watering and photophobia for the past 8 years. General physical examination showed short stature and poikiloderma. Ocular findings include photophobia with reflex tearing, dry eye, cicatricial ectropion, symblepharon approaching pupillary area of cornea, and multiple superficial punctuate erosions on the cornea. Both eyelids showed scanty meibomian glands on infrared meibography. The rest of the anterior and posterior segment was normal. The patient was treated with topical lubricants which reduced photophobia and corneal erosions. He then underwent symblepharon release with buccal mucosal grafting, which improved ectropion. Patient improved symptomatically with reduction of photophobia and improvement in vision as well. PMID- 29044078 TI - Primary calcareous degeneration of the cornea. AB - Primary calcareous degeneration is a rare corneal disease. In the past 50 years, only four cases have been described. We present the case of a 26-year-old male patient with progressive calcium deposition in both eyes with negative laboratory parameters. For the first time, anterior segment optic coherence tomography was used to investigate and establish the proper treatment. PMID- 29044079 TI - Ultrasonographic evaluation of transition from normal to ectatic area: A comparison between myopic staphylomata and coloboma. AB - Choroidal coloboma and posterior staphyloma are two clinically distinct entities, with choroidal excavation being a unifying feature. They are associated with early onset cataract which can make ophthalmoscopy difficult. This report studies the transition between the normal and ectatic area in these cases with ultrasound. We evaluate "posterior hump" as a sign of differentiation between these two conditions. PMID- 29044080 TI - Amalric sign: An augur of ophthalmic artery occlusion. AB - A 75-year-old man presented to us with sudden onset of profound vision loss in his right eye and was identified as suffering from an ophthalmic artery occlusion. Apart from the retinal whitening and box-carring of the retinal arteries, there were characteristic triangular patches of retinal whitening in the midperipheral temporal fundus indicating a previous lateral posterior choroidal artery occlusion. The patient was a chronic smoker and had dyslipidemia. The carotid Doppler study showed complete occlusion of the internal carotid artery. The presence of these triangular patches of retinal whitening or amalric sign can therefore herald a more proximal vessel occlusion. Hence such patients require evaluation on an emergency basis. The characteristic features of the patches on fluorescein angiography and indocyanine green angiography are discussed here. PMID- 29044081 TI - Retained intraocular iron foreign body presenting with acute retinal necrosis. AB - We report an unusual case of retained metallic intraocular foreign body (IOFB) presenting with acute retinal necrosis (ARN). A healthy young man presented with signs of ARN including hypopyon, dense vitritis, and peripheral retinal necrosis following alleged history of trauma with a high-velocity projectile. After initial management of ARN with systemic antivirals, a retained metallic IOFB was identified and subsequently removed surgically. The patient was followed up for 12 months postoperatively and retained excellent vision without recurrence of the ARN. The diagnosis of an IOFB in a case with associated inflammation can be challenging. A strong clinical suspicion with proper investigations can achieve optimum results. PMID- 29044082 TI - Rickettsial retinitis: Direct bacterial infection or an immune-mediated response? AB - Infectious retinitis postfebrile illness is known to be caused by chikungunya, dengue, West Nile virus, Bartonella, Lyme's disease, Rift Valley fever, rickettsia, Herpes viruses etc. Rickettsia is Gram-negative bacteria transmitted by arthropods vectors. Ocular involvement is common including conjunctivitis, keratitis, anterior uveitis, panuveitis, retinitis, retinal vascular changes, and optic nerve involvement. Retinitis lesions in rickettsia can occur because of an immunological response to the bacteria or because of direct invasion and proliferation of bacteria in the inner retina. We report such a case of bilateral rickettsial retinitis proven by serology which worsened on systemic steroids and responded dramatically to therapy with oral doxycycline and steroid taper. We thus believe that direct bacterial invasion plays a major role in the pathogenesis of rickettsial retinitis. PMID- 29044083 TI - Commentary: Rickettsial retinitis - Direct bacterial infection or an immune mediated response? PMID- 29044084 TI - Infectious chorioretinitis in an immunocompetent patient: A diagnostic dilemma. AB - A 44-year-old male presented with a history of defective vision in the right eye for the past 5 months with the previous history of tubercular cervical lymphadenitis. On examination, right eye revealed panuveitis with dense vitritis and chorioretinitis in the superotemporal quadrant. His Mantoux test was positive (25 mm * 25 mm induration), QuantiFERON-TB Gold was test positive, aqueous aspirate was positive for Mycobacterium tuberculosis genome, negative for viruses and toxoplasma, and hence he was initiated on four-drug antitubercular therapy (ATT) with oral steroids. On follow-up, he had worsening of vitritis and intravenous methylprednisolone was given suspecting paradoxical reaction to ATT; however, a repeat AC tap was positive for toxoplasma B1 genome, IgG antitoxoplasma antibody was also positive in serum and aqueous; hence, we switched to systemic antitoxoplasma therapy. He underwent a therapeutic vitrectomy along with intravitreal clindamycin and dexamethasone for persistent vitreous membranes and vitritis. The patient responded well to the treatment with a reduction in vitritis and scarring of the lesion. PMID- 29044085 TI - Vitrectomy for epiretinal membrane in adult-onset Coats' disease. AB - Coats' disease is characterized by retinal vascular telangiectasia and subretinal and intraretinal exudation. A relatively benign form of the disease that occurs in adults is referred to as adult-onset Coats' disease. Involvement of macula in the form of macular edema and exudation are the common presenting features in both forms of the disease. We describe a rare case of adult-onset Coats' disease that presented with epiretinal membrane (ERM). Laser photocoagulation of retinal vascular telangiectasia resulted in worsening of patient's symptoms and ERM. Early pars plana vitrectomy resulted in resolution of the patient's symptoms. Utility of ultra-wide-field imaging and rationale of early vitrectomy in such cases are discussed. PMID- 29044086 TI - Optical coherence tomography angiography of circumscribed choroidal hemangioma treated with photodynamic therapy. AB - We describe features of a circumscribed choroidal hemangioma (CCH) treated with photodynamic therapy (PDT) by means of optical coherence tomography angiography (OCT-A). A 40-year-old man had a complaint of decreasing visual acuity in his left eye for 10 days. A diagnosis of CCH was confirmed by fundus examination, fluorescein angiography, and indocyanine green angiography. An OCT-A study of choroidal lesion before and after PDT was carried out. Segmented en face OCT-A of CCH showed multiple irregular connected vascular channels with hyperflow and a capillary-like lesion. Absent and/or reduced intrachannel flow in most of the intratumoral vessels was shown by OCT-A soon after treatment (2 days), with normalization of vascular flow 7 days and 1 month after PDT. OCT-A was able to noninvasively visualize intrinsic vasculature of CCH showing vascular remodeling after PDT. PMID- 29044087 TI - Bilateral disc drusen in a diabetic patient simulating diabetic papillopathy as a cause of disc edema. AB - Bilateral optic disc edema in a diabetic patient may be caused by diabetic papillopathy. We herein report on a patient with bilateral optic disc drusen simulating diabetic papillopathy. A 55-year-old patient with type 2 diabetes presented with decreased vision of 1-month. Diabetic papillopathy was initially considered as there was disc edema in both eyes with focal hemorrhages at the disc margin and mild visual loss. Ultrasound of the optic nerve head revealed optic disc drusen in both eyes and this was also confirmed by the control photograph. Optic nerve head drusen should be considered in the differential diagnosis of a diabetic patient presenting with disc edema. PMID- 29044088 TI - Management of idiopathic intracranial hypertension in an infant with bilateral congenital cataract and associated comitant sensory esotropia. AB - In this report, we describe the management of a child with bilateral cataract, nystagmus, and comitant sensory esotropia. Routine ultrasonography done before cataract surgery revealed bilateral disc edema confirmed as idiopathic intracranial hypertension by a pediatric neurologist. The primary intervention for cataract surgery was followed by nonresolving papilledema, despite maximum medical therapy. To salvage the optic nerve function in a nonverbal child, bilateral optic nerve sheath decompression was planned with simultaneous medial rectus recessions for the persistent esotropia with the satisfactory postoperative outcome. PMID- 29044089 TI - Congenital sixth nerve palsy with associated anomalies. AB - Congenital abduction deficit is most likely due to Duane's retraction syndrome as congenital abducens nerve palsy is very rare. We report two cases of infantile abduction deficit due to sixth nerve palsy associated with other anomalies to highlight the importance of including neuroimaging in the evaluation of an infant presenting with a limitation of abduction. PMID- 29044090 TI - Contralateral eye surgery with adjustable suture for management of third nerve palsy with aberrant regeneration. AB - Aberrant regeneration of the third nerve following its palsy is commonly seen after trauma and compressive lesions. This phenomenon is thought to result due to misdirection of the regenerating axons. Surgical management is a great challenge in the third nerve palsy owing to multiple muscle involvement and is often accompanied by ptosis and poor Bell's phenomenon. We present a case of a 27-year old male who developed isolated complete third nerve palsy of the left eye following head trauma. Features of aberrant regeneration were seen after 6 months, namely, inverse Duane's sign and Pseudo-Von Graefe's sign. He underwent recess-resect procedure in the unaffected eye with adjustable suture technique which not only corrected the deviation but also the ptosis by utilizing the oculomotor synkinesis. Thus, contralateral eye surgery combined with adjustable suture technique resulted in an accurate alignment of the eye and obviated the need for ptosis correction. PMID- 29044091 TI - Management of a case of divergent strabismus fixus secondary to a congenital fibrosis of extraocular muscles type 2. AB - A 17-year-old boy presented with a large exotropia with both eyes fixed in an abduction and upgaze, pupillary involvement since childhood. He had mild optic nerve hypoplasia in the right eye and situs inversus of the retinal vessels in the left optic disc. His ocular motility showed restriction of eye movements in all gazes. He was diagnosed with congenital fibrosis of extraocular muscles, type 2 (CFEOM2) and operated upon in a staged procedure with a satisfactory eye alignment using hang-back sutures in one eye and periosteal fixation in the other. This report highlights the surgical course and final outcome in this case of CFEOM2. PMID- 29044092 TI - Isolated nonpulsatile enophthalmos in neurofibromatosis: An uncommon entity. AB - Isolated enophthalmos is a rarely observed entity in neurofibromatosis (NF). A 12 year-old male presented with right lower eyelid fat prolapse and enophthalmos for the past 7 years. There was no history of antecedent trauma/surgery. Computed tomography of orbit revealed an ill-defined intraconal hyperdense lesion located between lateral and inferior rectus along with an enlarged inferior orbital fissure (IOF). Superior orbital fissure was minimally widened without prolapse of any intracranial contents. Excision biopsy along with repair of widened IOF was performed through inferior transconjunctival route. Histopathology was suggestive of plexiform neurofibroma with positivity for S-100 and epithelial membrane antigen. No associated cutaneous lesions were present. Nonpulsatile enophthalmos with eyelid fat prolapse can be a presenting sign of NF. PMID- 29044093 TI - Erratum: Variation in the vitreoretinal configuration of Stage 4 retinopathy of prematurity in photocoagulated and treatment naive eyes undergoing vitrectomy. AB - [This corrects the article DOI: 10.4103/ijo.IJO_1_17.]. PMID- 29044094 TI - Evaluation of Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio in patients with mitral valve stenosis before and after balloon valvuloplasty. AB - OBJECTIVE: Sympathetic activity increases in patients with mitral stenosis (MS). The association between prolonged Tpeak-Tend (Tp-e) interval and increased sympathetic activity has been demonstrated. This study aimed to evaluate Tp-e interval, Tp-e/QT ratio, and Tp-e/corrected QT interval (QTc) ratio in patients with MS before and after balloon valvuloplasty. METHODS: Thirty patients with severe MS and 30 sex-, body mass index-, and and age-matched healthy control subjects were enrolled. The severity of MS was defined following clinical, transthoracic, and transesophageal echocardiographic examinations. All patients underwent successful mitral balloon valvuloplasty. Tp-e interval, Tp-e/QT, and Tp e/QTc ratios were measured using 12-lead electrocardiogram. First, the abovementioned parameters were compared between patients with MS and healthy control subjects. Second, these parameters were compared before and after balloon valvuloplasty in patients with MS. RESULTS: The mean Tp-e interval was significantly prolonged in patients with MS compared with healthy control subjects (85.02+/-9.12 ms vs. 75.38+/-6.04 ms; p<0.001). In addition, Tp-e/QT ratio and Tp-e/QTc ratio were significantly higher in patients with MS than in healthy control subjects (0.217+/-0.025 vs. 0.196+/-0.02 and 0.203+/-0.02 vs. 0.184+/-0.019; p<0.001).The mean valve area significantly increased after balloon valvuloplasty compared with that before balloon valvuloplasty (1.83+/-0.32 cm2 vs. 1.18+/-0.15 cm2; p<0.001). Compared with those before balloon valvuloplasty, Tp-e interval (85.02+/-9.12 ms vs. 78.06+/-9.2 ms; p<0.001), Tp-e/QT ratio (0.217+/-0.02 vs. 0.201+/-0.02; p<0.001), and Tp-e/QTc ratio (0.203+/-0.02 vs. 0.184+/-0.02; p<0.001) decreased after balloon valvuloplasty. CONCLUSION: We revealed that Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio increased in patients with severe MS. Furthermore, balloon valvuloplasty had a favorable effect on parameters associated with myocardial repolarization. PMID- 29044095 TI - Second-order spectral lineshapes from charged interfaces. AB - Second-order nonlinear spectroscopy has proven to be a powerful tool in elucidating key chemical and structural characteristics at a variety of interfaces. However, the presence of interfacial potentials may lead to complications regarding the interpretation of second harmonic and vibrational sum frequency generation responses from charged interfaces due to mixing of absorptive and dispersive contributions. Here, we examine by means of mathematical modeling how this interaction influences second-order spectral lineshapes. We discuss our findings in the context of reported nonlinear optical spectra obtained from charged water/air and solid/liquid interfaces and demonstrate the importance of accounting for the interfacial potential-dependent chi (3) term in interpreting lineshapes when seeking molecular information from charged interfaces using second-order spectroscopy. PMID- 29044096 TI - A homologue of the Parkinson's disease-associated protein LRRK2 undergoes a monomer-dimer transition during GTP turnover. AB - Mutations in LRRK2 are a common cause of genetic Parkinson's disease (PD). LRRK2 is a multi-domain Roco protein, harbouring kinase and GTPase activity. In analogy with a bacterial homologue, LRRK2 was proposed to act as a GTPase activated by dimerization (GAD), while recent reports suggest LRRK2 to exist under a monomeric and dimeric form in vivo. It is however unknown how LRRK2 oligomerization is regulated. Here, we show that oligomerization of a homologous bacterial Roco protein depends on the nucleotide load. The protein is mainly dimeric in the nucleotide-free and GDP-bound states, while it forms monomers upon GTP binding, leading to a monomer-dimer cycle during GTP hydrolysis. An analogue of a PD associated mutation stabilizes the dimer and decreases the GTPase activity. This work thus provides insights into the conformational cycle of Roco proteins and suggests a link between oligomerization and disease-associated mutations in LRRK2. PMID- 29044098 TI - Ferrotoroidic ground state in a heterometallic {CrIIIDyIII6} complex displaying slow magnetic relaxation. AB - Toroidal quantum states are most promising for building quantum computing and information storage devices, as they are insensitive to homogeneous magnetic fields, but interact with charge and spin currents, allowing this moment to be manipulated purely by electrical means. Coupling molecular toroids into larger toroidal moments via ferrotoroidic interactions can be pivotal not only to enhance ground state toroidicity, but also to develop materials displaying ferrotoroidic ordered phases, which sustain linear magneto-electric coupling and multiferroic behavior. However, engineering ferrotoroidic coupling is known to be a challenging task. Here we have isolated a {CrIIIDyIII6} complex that exhibits the much sought-after ferrotoroidic ground state with an enhanced toroidal moment, solely arising from intramolecular dipolar interactions. Moreover, a theoretical analysis of the observed sub-Kelvin zero-field hysteretic spin dynamics of {CrIIIDyIII6} reveals the pivotal role played by ferrotoroidic states in slowing down the magnetic relaxation, in spite of large calculated single-ion quantum tunneling rates. PMID- 29044099 TI - Coherent coupling between a quantum dot and a donor in silicon. AB - Individual donors in silicon chips are used as quantum bits with extremely low error rates. However, physical realizations have been limited to one donor because their atomic size causes fabrication challenges. Quantum dot qubits, in contrast, are highly adjustable using electrical gate voltages. This adjustability could be leveraged to deterministically couple donors to quantum dots in arrays of qubits. In this work, we demonstrate the coherent interaction of a 31P donor electron with the electron of a metal-oxide-semiconductor quantum dot. We form a logical qubit encoded in the spin singlet and triplet states of the two-electron system. We show that the donor nuclear spin drives coherent rotations between the electronic qubit states through the contact hyperfine interaction. This provides every key element for compact two-electron spin qubits requiring only a single dot and no additional magnetic field gradients, as well as a means to interact with the nuclear spin qubit. PMID- 29044097 TI - DNA-binding of the Tet-transactivator curtails antigen-induced lymphocyte activation in mice. AB - The Tet-On/Off system for conditional transgene expression constitutes state-of the-art technology to study gene function by facilitating inducible expression in a timed and reversible manner. Several studies documented the suitability and versatility of this system to trace lymphocyte fate and to conditionally express oncogenes or silence tumour suppressor genes in vivo. Here, we show that expression of the tetracycline/doxycycline-controlled Tet-transactivator, while tolerated well during development and in immunologically unchallenged animals, impairs the expansion of antigen-stimulated T and B cells and thereby curtails adaptive immune responses in vivo. Transactivator-mediated cytotoxicity depends on DNA binding, but can be overcome by BCL2 overexpression, suggesting that apoptosis induction upon lymphocyte activation limits cellular and humoral immune responses. Our findings suggest a possible system-intrinsic biological bias of the Tet-On/Off system in vivo that will favour the outgrowth of apoptosis resistant clones, thus possibly confounding data published using such systems. PMID- 29044100 TI - Experimental realization of two-dimensional Dirac nodal line fermions in monolayer Cu2Si. AB - Topological nodal line semimetals, a novel quantum state of materials, possess topologically nontrivial valence and conduction bands that touch at a line near the Fermi level. The exotic band structure can lead to various novel properties, such as long-range Coulomb interaction and flat Landau levels. Recently, topological nodal lines have been observed in several bulk materials, such as PtSn4, ZrSiS, TlTaSe2 and PbTaSe2. However, in two-dimensional materials, experimental research on nodal line fermions is still lacking. Here, we report the discovery of two-dimensional Dirac nodal line fermions in monolayer Cu2Si based on combined theoretical calculations and angle-resolved photoemission spectroscopy measurements. The Dirac nodal lines in Cu2Si form two concentric loops centred around the Gamma point and are protected by mirror reflection symmetry. Our results establish Cu2Si as a platform to study the novel physical properties in two-dimensional Dirac materials and provide opportunities to realize high-speed low-dissipation devices. PMID- 29044101 TI - Controlling the bioactivity of a peptide hormone in vivo by reversible self assembly. AB - The use of peptides as therapeutic agents is undergoing a renaissance with the expectation of new drugs with enhanced levels of efficacy and safety. Their clinical potential will be only fully realised once their physicochemical and pharmacokinetic properties have been precisely controlled. Here we demonstrate a reversible peptide self-assembly strategy to control and prolong the bioactivity of a native peptide hormone in vivo. We show that oxyntomodulin, a peptide with potential to treat obesity and diabetes, self-assembles into a stable nanofibril formulation which subsequently dissociates to release active peptide and produces a pharmacological effect in vivo. The subcutaneous administration of the nanofibrils in rats results in greatly prolonged exposure, with a constant oxyntomodulin bioactivity detectable in serum for at least 5 days as compared to free oxyntomodulin which is undetectable after only 4 h. Such an approach is simple, cost-efficient and generic in addressing the limitations of peptide therapeutics. PMID- 29044102 TI - Ultrahigh thermoelectric power factor in flexible hybrid inorganic-organic superlattice. AB - Hybrid inorganic-organic superlattice with an electron-transmitting but phonon blocking structure has emerged as a promising flexible thin film thermoelectric material. However, the substantial challenge in optimizing carrier concentration without disrupting the superlattice structure prevents further improvement of the thermoelectric performance. Here we demonstrate a strategy for carrier optimization in a hybrid inorganic-organic superlattice of TiS2[tetrabutylammonium] x [hexylammonium] y , where the organic layers are composed of a random mixture of tetrabutylammonium and hexylammonium molecules. By vacuum heating the hybrid materials at an intermediate temperature, the hexylammonium molecules with a lower boiling point are selectively de intercalated, which reduces the electron density due to the requirement of electroneutrality. The tetrabutylammonium molecules with a higher boiling point remain to support and stabilize the superlattice structure. The carrier concentration can thus be effectively reduced, resulting in a remarkably high power factor of 904 uW m-1 K-2 at 300 K for flexible thermoelectrics, approaching the values achieved in conventional inorganic semiconductors. PMID- 29044104 TI - Mining drives extensive deforestation in the Brazilian Amazon. AB - Mining poses significant and potentially underestimated risks to tropical forests worldwide. In Brazil's Amazon, mining drives deforestation far beyond operational lease boundaries, yet the full extent of these impacts is unknown and thus neglected in environmental licensing. Here we quantify mining-induced deforestation and investigate the aspects of mining operations, which most likely contribute. We find mining significantly increased Amazon forest loss up to 70 km beyond mining lease boundaries, causing 11,670 km2 of deforestation between 2005 and 2015. This extent represents 9% of all Amazon forest loss during this time and 12 times more deforestation than occurred within mining leases alone. Pathways leading to such impacts include mining infrastructure establishment, urban expansion to support a growing workforce, and development of mineral commodity supply chains. Mining-induced deforestation is not unique to Brazil; to mitigate adverse impacts of mining and conserve tropical forests globally, environmental assessments and licensing must considered both on- and off-lease sources of deforestation. PMID- 29044103 TI - OCT4 impedes cell fate redirection by the melanocyte lineage master regulator MITF in mouse ESCs. AB - Ectopic expression of lineage master regulators induces transdifferentiation. Whether cell fate transitions can be induced during various developmental stages has not been systemically examined. Here we discover that amongst different developmental stages, mouse embryonic stem cells (mESCs) are resistant to cell fate conversion induced by the melanocyte lineage master regulator MITF. By generating a transgenic system we exhibit that in mESCs, the pluripotency master regulator Oct4, counteracts pro-differentiation induced by Mitf by physical interference with MITF transcriptional activity. We further demonstrate that mESCs must be released from Oct4-maintained pluripotency prior to ectopically induced differentiation. Moreover, Oct4 induction in various differentiated cells represses their lineage identity in vivo. Alongside, chromatin architecture combined with ChIP-seq analysis suggest that Oct4 competes with various lineage master regulators for binding promoters and enhancers. Our analysis reveals pluripotency and transdifferentiation regulatory principles and could open new opportunities in the field of regenerative medicine. PMID- 29044105 TI - Late Holocene slowdown of the Indian Ocean Walker circulation. AB - Changes in tropical zonal atmospheric (Walker) circulation induce shifts in rainfall patterns along with devastating floods and severe droughts that dramatically impact the lives of millions of people. Historical records and observations of the Walker circulation over the 20th century disagree on the sign of change and therefore, longer climate records are necessary to better project tropical circulation changes in response to global warming. Here we examine proxies for thermocline depth and rainfall in the eastern tropical Indian Ocean during the globally colder Last Glacial Maximum (19-23 thousand years ago) and for the past 3000 years. We show that increased thermocline depth and rainfall indicate a stronger-than-today Walker circulation during the Last Glacial Maximum, which is supported by an ensemble of climate simulations. Our findings underscore the sensitivity of tropical circulation to temperature change and provide evidence for a further weakening of the Walker circulation in response to greenhouse warming. PMID- 29044106 TI - A mechanosensitive Ca2+ channel activity is dependent on the developmental regulator DEK1. AB - Responses of cells to mechanical stress are thought to be critical in coordinating growth and development. Consistent with this idea, mechanically activated channels play important roles in animal development. For example, the PIEZO1 channel controls cell division and epithelial-layer integrity and is necessary for vascular development in mammals. In plants, the actual contribution of mechanoperception to development remains questionable because very few putative mechanosensors have been identified and the phenotypes of the corresponding mutants are rather mild. Here, we show that the Arabidopsis Defective Kernel 1 (DEK1) protein, which is essential for development beyond early embryogenesis, is associated with a mechanically activated Ca2+ current in planta, suggesting that perception of mechanical stress plays a critical role in plant development. PMID- 29044107 TI - Triparental plants provide direct evidence for polyspermy induced polyploidy. AB - It is considered an inviolable principle that sexually reproducing organisms have no more than two parents and fertilization of an egg by multiple sperm (polyspermy) is lethal in many eukaryotes. In flowering plants polyspermy has remained a hypothetical concept, due to the lack of tools to unambiguously identify and trace this event. We established a high-throughput polyspermy detection assay, which uncovered that supernumerary sperm fusion does occur in planta and can generate viable polyploid offspring. Moreover, polyspermy can give rise to seedlings with one mother and two fathers, challenging the bi-organismal concept of parentage. The polyspermy derived triploids are taller and produce bigger organs than plants resulting from a regular monospermic fertilization. In addition, we demonstrate the hybridization potential of polyspermy by instantly combining three different Arabidopsis accessions in one zygote. Our results provide direct evidence for polyspermy as a route towards polyploidy, which is considered a major plant speciation mechanism. PMID- 29044110 TI - Hyperconnected molecular glass network architectures with exceptional elastic properties. AB - Hyperconnected network architectures can endow nanomaterials with remarkable mechanical properties that are fundamentally controlled by designing connectivity into the intrinsic molecular structure. For hybrid organic-inorganic nanomaterials, here we show that by using 1,3,5 silyl benzene precursors, the connectivity of a silicon atom within the network extends beyond its chemical coordination number, resulting in a hyperconnected network with exceptional elastic stiffness, higher than that of fully dense silica. The exceptional intrinsic stiffness of these hyperconnected glass networks is demonstrated with molecular dynamics models and these model predictions are calibrated through the synthesis and characterization of an intrinsically porous hybrid glass processed from 1,3,5(triethoxysilyl)benzene. The proposed molecular design strategy applies to any materials system wherein the mechanical properties are controlled by the underlying network connectivity. PMID- 29044108 TI - Echinochloa crus-galli genome analysis provides insight into its adaptation and invasiveness as a weed. AB - Barnyardgrass (Echinochloa crus-galli) is a pernicious weed in agricultural fields worldwide. The molecular mechanisms underlying its success in the absence of human intervention are presently unknown. Here we report a draft genome sequence of the hexaploid species E. crus-galli, i.e., a 1.27 Gb assembly representing 90.7% of the predicted genome size. An extremely large repertoire of genes encoding cytochrome P450 monooxygenases and glutathione S-transferases associated with detoxification are found. Two gene clusters involved in the biosynthesis of an allelochemical 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) and a phytoalexin momilactone A are found in the E. crus-galli genome, respectively. The allelochemical DIMBOA gene cluster is activated in response to co-cultivation with rice, while the phytoalexin momilactone A gene cluster specifically to infection by pathogenic Pyricularia oryzae. Our results provide a new understanding of the molecular mechanisms underlying the extreme adaptation of the weed. PMID- 29044111 TI - Elevated olivine weathering rates and sulfate formation at cryogenic temperatures on Mars. AB - Large Hesperian-aged (~3.7 Ga) layered deposits of sulfate-rich sediments in the equatorial regions of Mars have been suggested to be evidence for ephemeral playa environments. But early Mars may not have been warm enough to support conditions similar to what occurs in arid environments on Earth. Instead cold, icy environments may have been widespread. Under cryogenic conditions sulfate formation might be blocked, since kinetics of silicate weathering are typically strongly retarded at temperatures well below 0 degrees C. But cryo-concentration of acidic solutions may counteract the slow kinetics. Here we show that cryo concentrated acidic brines rapidly chemically weather olivine minerals and form sulfate minerals at temperatures as low as -60 degrees C. These experimental results demonstrate the viability of sulfate formation under current Martian conditions, even in the polar regions. An ice-hosted sedimentation and weathering model may provide a compelling description of the origin of large Hesperian-aged layered sulfate deposits on Mars. PMID- 29044109 TI - APOBEC3H structure reveals an unusual mechanism of interaction with duplex RNA. AB - The APOBEC3 family of cytidine deaminases cause lethal hypermutation of retroviruses via deamination of newly reverse-transcribed viral DNA. Their ability to bind RNA is essential for virion infiltration and antiviral activity, yet the mechanisms of viral RNA recognition are unknown. By screening naturally occurring, polymorphic, non-human primate APOBEC3H variants for biological and crystallization properties, we obtained a 2.24-A crystal structure of pig-tailed macaque APOBEC3H with bound RNA. Here, we report that APOBEC3H forms a dimer around a short RNA duplex and, despite the bound RNA, has potent cytidine deaminase activity. The structure reveals an unusual RNA-binding mode in which two APOBEC3H molecules at opposite ends of a seven-base-pair duplex interact extensively with both RNA strands, but form no protein-protein contacts. CLIP-seq analysis revealed that APOBEC3H preferentially binds to sequences in the viral genome predicted to contain duplexes, a property that may facilitate both virion incorporation and catalytic activity. PMID- 29044113 TI - Large second harmonic generation enhancement in Si3N4 waveguides by all-optically induced quasi-phase-matching. AB - Efficient second harmonic generation in integrated platforms is usually achieved by resonant structures, intermodal phase-matching or quasi-phase matching by periodically poling ferroelectric waveguides. However, in all these structures, it is impossible to reconfigure the phase-matching condition in an all-optical way. Here, we demonstrate that a Watt-level laser causes a periodic modification of the second-order susceptibility in a silicon nitride waveguide, allowing for quasi-phase-matching between the pump and second harmonic modes for arbitrary wavelengths inside the erbium band. The grating is long-term inscribed, and leads to a second harmonic generation enhancement of more than 30 dB. We estimate a chi (2) on the order of 0.3 pm/V, with a maximum conversion efficiency of 0.05% W-1. We explain the observed phenomenon with the coherent photogalvanic effect model, which correctly agrees with the retrieved experimental parameters. PMID- 29044112 TI - Cognitive task information is transferred between brain regions via resting-state network topology. AB - Resting-state network connectivity has been associated with a variety of cognitive abilities, yet it remains unclear how these connectivity properties might contribute to the neurocognitive computations underlying these abilities. We developed a new approach-information transfer mapping-to test the hypothesis that resting-state functional network topology describes the computational mappings between brain regions that carry cognitive task information. Here, we report that the transfer of diverse, task-rule information in distributed brain regions can be predicted based on estimated activity flow through resting-state network connections. Further, we find that these task-rule information transfers are coordinated by global hub regions within cognitive control networks. Activity flow over resting-state connections thus provides a large-scale network mechanism for cognitive task information transfer and global information coordination in the human brain, demonstrating the cognitive relevance of resting-state network topology. PMID- 29044115 TI - Carbon fixation from mineral carbonates. AB - Photoautotrophs assimilate oxidized carbon obtained from one of two sources: dissolved or atmospheric. Despite its size, the pool of lithospheric carbonate is not known to be a direct source for autotrophy. Yet, the mechanism that euendolithic cyanobacteria use to excavate solid carbonates suggests that minerals could directly supply CO2 for autotrophy. Here, we use stable isotopes and NanoSIMS to show that the cyanobacterium Mastigocoleus testarum derives most of its carbon from the mineral it excavates, growing preferentially as an endolith when lacking dissolved CO2. Furthermore, natural endolithic communities from intertidal marine carbonate outcrops present carbon isotopic signatures consistent with mineral-sourced autotrophy. These data demonstrate a direct geomicrobial link between mineral carbonate pools and reduced organic carbon, which, given the geographical extent of carbonate outcrops, is likely of global relevance. The ancient fossil record of euendolithic cyanobacteria suggests that biological fixation of solid carbonate could have been relevant since the mid Proterozoic. PMID- 29044114 TI - Evolution of drift robustness in small populations. AB - Most mutations are deleterious and cause a reduction in population fitness known as the mutational load. In small populations, weakened selection against slightly deleterious mutations results in an additional fitness reduction. Many studies have established that populations can evolve a reduced mutational load by evolving mutational robustness, but it is uncertain whether small populations can evolve a reduced susceptibility to drift-related fitness declines. Here, using mathematical modeling and digital experimental evolution, we show that small populations do evolve a reduced vulnerability to drift, or 'drift robustness'. We find that, compared to genotypes from large populations, genotypes from small populations have a decreased likelihood of small-effect deleterious mutations, thus causing small-population genotypes to be drift-robust. We further show that drift robustness is not adaptive, but instead arises because small populations can only maintain fitness on drift-robust fitness peaks. These results have implications for genome evolution in organisms with small effective population sizes. PMID- 29044116 TI - Author Correction: Ctenophore relationships and their placement as the sister group to all other animals. AB - In the version of this Article originally published the location of Punta Arenas was incorrect and should have read 'Chile' in Figures 3-5 and in the Supplementary Information. This has been corrected in all versions of the Article. PMID- 29044118 TI - Younger Dryas ice margin retreat triggered by ocean surface warming in central eastern Baffin Bay. AB - The transition from the last ice age to the present-day interglacial was interrupted by the Younger Dryas (YD) cold period. While many studies exist on this climate event, only few include high-resolution marine records that span the YD. In order to better understand the interactions between ocean, atmosphere and ice sheet stability during the YD, more high-resolution proxy records from the Arctic, located proximal to ice sheet outlet glaciers, are required. Here we present the first diatom-based high-resolution quantitative reconstruction of sea surface conditions from central-eastern Baffin Bay, covering the period 14.0-10.2 kyr BP. Our record reveals warmer sea surface conditions and strong interactions between the ocean and the West Greenland ice margin during the YD. These warmer conditions were caused by increased Atlantic-sourced water inflow combined with amplified seasonality. Our results emphasize the importance of the ocean for ice sheet stability under the current changing climate. PMID- 29044117 TI - ROCK regulates the intermittent mode of interstitial T cell migration in inflamed lungs. AB - Effector T cell migration through tissues can enable control of infection or mediate inflammatory damage. Nevertheless, the molecular mechanisms that regulate migration of effector T cells within the interstitial space of inflamed lungs are incompletely understood. Here, we show T cell migration in a mouse model of acute lung injury with two-photon imaging of intact lung tissue. Computational analysis indicates that T cells migrate with an intermittent mode, switching between confined and almost straight migration, guided by lung-associated vasculature. Rho-associated protein kinase (ROCK) is required for both high-speed migration and straight motion. By contrast, inhibition of Galphai signaling with pertussis toxin affects speed but not the intermittent migration of lung-infiltrating T cells. Computational modeling shows that an intermittent migration pattern balances both search area and the duration of contacts between T cells and target cells. These data identify that ROCK-dependent intermittent T cell migration regulates tissue-sampling during acute lung injury. PMID- 29044120 TI - Few-femtosecond passage of conical intersections in the benzene cation. AB - Observing the crucial first few femtoseconds of photochemical reactions requires tools typically not available in the femtochemistry toolkit. Such dynamics are now within reach with the instruments provided by attosecond science. Here, we apply experimental and theoretical methods to assess the ultrafast nonadiabatic vibronic processes in a prototypical complex system-the excited benzene cation. We use few-femtosecond duration extreme ultraviolet and visible/near-infrared laser pulses to prepare and probe excited cationic states and observe two relaxation timescales of 11 +/- 3 fs and 110 +/- 20 fs. These are interpreted in terms of population transfer via two sequential conical intersections. The experimental results are quantitatively compared with state-of-the-art multi configuration time-dependent Hartree calculations showing convincing agreement in the timescales. By characterising one of the fastest internal conversion processes studied to date, we enter an extreme regime of ultrafast molecular dynamics, paving the way to tracking and controlling purely electronic dynamics in complex molecules. PMID- 29044119 TI - The WNT target SP5 negatively regulates WNT transcriptional programs in human pluripotent stem cells. AB - The WNT/beta-catenin signaling pathway is a prominent player in many developmental processes, including gastrulation, anterior-posterior axis specification, organ and tissue development, and homeostasis. Here, we use human pluripotent stem cells (hPSCs) to study the dynamics of the transcriptional response to exogenous activation of the WNT pathway. We describe a mechanism involving the WNT target gene SP5 that leads to termination of the transcriptional program initiated by WNT signaling. Integration of gene expression profiles of wild-type and SP5 mutant cells with genome-wide SP5 binding events reveals that SP5 acts to diminish expression of genes previously activated by the WNT pathway. Furthermore, we show that activation of SP5 by WNT signaling is most robust in cells with developmental potential, such as stem cells. These findings indicate a mechanism by which the developmental WNT signaling pathway reins in expression of transcriptional programs. PMID- 29044121 TI - Robust Bain distortion in the premartensite phase of a platinum-substituted Ni2MnGa magnetic shape memory alloy. AB - The premartensite phase of shape memory and magnetic shape memory alloys (MSMAs) is believed to be a precursor state of the martensite phase with preserved austenite phase symmetry. The thermodynamic stability of the premartensite phase and its relation to the martensitic phase is still an unresolved issue, even though it is critical to the understanding of the functional properties of MSMAs. We present here unambiguous evidence for macroscopic symmetry breaking leading to robust Bain distortion in the premartensite phase of 10% Pt-substituted Ni2MnGa. We show that the robust Bain-distorted premartensite (T2) phase results from another premartensite (T1) phase with preserved cubic-like symmetry through an isostructural phase transition. The T2 phase finally transforms to the martensite phase with additional Bain distortion on further cooling. Our results demonstrate that the premartensite phase should not be considered as a precursor state with the preserved symmetry of the cubic austenite phase. PMID- 29044122 TI - Wind loads and competition for light sculpt trees into self-similar structures. AB - Trees are self-similar structures: their branch lengths and diameters vary allometrically within the tree architecture, with longer and thicker branches near the ground. These tree allometries are often attributed to optimisation of hydraulic sap transport and safety against elastic buckling. Here, we show that these allometries also emerge from a model that includes competition for light, wind biomechanics and no hydraulics. We have developed MECHATREE, a numerical model of trees growing and evolving on a virtual island. With this model, we identify the fittest growth strategy when trees compete for light and allocate their photosynthates to grow seeds, create new branches or reinforce existing ones in response to wind-induced loads. Strikingly, we find that selected trees species are self-similar and follow allometric scalings similar to those observed on dicots and conifers. This result suggests that resistance to wind and competition for light play an essential role in determining tree allometries. PMID- 29044123 TI - IRE1alpha/XBP1s branch of UPR links HIF1alpha activation to mediate ANGII dependent endothelial dysfunction under particulate matter (PM) 2.5 exposure. AB - Short- and long-term exposure to particulate matter (PM) 2.5 instigates adverse health effect upon the cardiovascular (CV) system. Disclosing the molecular events by which PM2.5 evokes CV injuries is essential in developing effective risk-reduction strategy. Here we found that rats after intratracheally instillation with PM2.5 displayed increased circulating level of ANGII, the major bioactive peptide in renin-angiotensin-system (RAS), which resulted from the elevation of ANGII production in the vascular endothelium. Further investigations demonstrated that activation of IRE1alpha/XBP1s branch of unfolded protein response (UPR) was essential for augmented vascular ANGII signaling in response to PM2.5 exposure, whose effects strictly depends on the assembly of XBP1s/HIF1alpha transcriptional complex. Moreover, ablation of IRE1/XBP1/HIFalpha dependent ACE/ANGII/AT1R axis activation inhibited oxidative stress and proinflammatory response in the vascular endothelial cells induced by PM2.5. Therefore, we conclude that PM2.5 exposure instigates endoplasmic reticulum instability, leading to the induction of IRE1alpha/XBP1s branch of UPR and links HIF1alpha transactivation to mediate ANGII-dependent endothelial dysfunction. Identifying novel therapeutic targets to alleviate ER stress and restore local RAS homeostasis in the endothelium may be helpful for the management of PM2.5 induced CV burden. PMID- 29044124 TI - Unconventional two-dimensional vibrations of a decorated carbon nanotube under electric field: linking actuation to advanced sensing ability. AB - We show that a carbon nanotube decorated with different types of charged metallic nanoparticles exhibits unusual two-dimensional vibrations when actuated by applied electric field. Such vibrations and diverse possible trajectories are not only fundamentally important but also have minimum two characteristic frequencies that can be directly linked back to the properties of the constituents in the considered nanoresonator. Namely, those frequencies and the maximal deflection during vibrations are very distinctively dependent on the geometry of the nanotube, the shape, element, mass and charge of the nanoparticle, and are vastly tunable by the applied electric field, revealing the unique sensing ability of devices made of molecular filaments and metallic nanoparticles. PMID- 29044125 TI - Transcription Factor CTIP1/ BCL11A Regulates Epidermal Differentiation and Lipid Metabolism During Skin Development. AB - The epidermal permeability barrier (EPB) prevents organisms from dehydration and infection. The transcriptional regulation of EPB development is poorly understood. We demonstrate here that transcription factor COUP-TF-interacting protein 1 (CTIP1/BCL11A; hereafter CTIP1) is highly expressed in the developing murine epidermis. Germline deletion of Ctip1 (Ctip1 -/-) results in EPB defects accompanied by compromised epidermal differentiation, drastic reduction in profilaggrin processing, reduced lamellar bodies in granular layers and significantly altered lipid composition. Transcriptional profiling of Ctip1 -/- embryonic skin identified altered expression of genes encoding lipid-metabolism enzymes, skin barrier-associated transcription factors and junctional proteins. CTIP1 was observed to interact with genomic elements within the regulatory region of the gene encoding the differentiation-associated gene, Fos-related antigen2 (Fosl2) and lipid-metabolism-related gene, Fatty acid elongase 4 (Elvol4), and the expression of both was altered in Ctip1 -/- mice. CTIP1 appears to play a role in EPB establishment of via direct or indirect regulation of a subset of genes encoding proteins involved in epidermal differentiation and lipid metabolism. These results identify potential, CTIP1-regulated avenues for treatment of skin disorders involving EBP defects. PMID- 29044126 TI - Understanding pup affective state through ethologically significant ultrasonic vocalization frequency. AB - Throughout life, rats emit ultrasonic vocalizations (USV) when confronted with an aversive situation. However, the conditions classically used to elicit USV vary greatly with the animal's age (isolation from the dam in infancy, versus nociceptive stimulation in adults). The present study is the first to characterize USV responses to the same aversive event throughout development. Specifically, infant, juvenile and adult rats were presented with mild foot shocks and their USV frequency, duration, and relationship with respiration and behavior were compared. In juvenile and adult rats, a single class of USV is observed with an age-dependent main frequency and duration (30 kHz/400 ms in juveniles, 22 kHz/900 ms in adults). In contrast, infant rat USV were split into two classes with specific relationships with respiration and behavior: 40 kHz/300 ms and 66 kHz/21 ms. Next, we questioned if these infant USV were also emitted in a more naturalistic context by exposing pups to interactions with the mother treating them roughly. This treatment enhanced 40-kHz USV while leaving 66-kHz USV unchanged suggesting that the use of USV goes far beyond a signal studied in terms of amount of emission, and can inform us about some aspects of the infant's affective state. PMID- 29044127 TI - Engineered in-vitro cell line mixtures and robust evaluation of computational methods for clonal decomposition and longitudinal dynamics in cancer. AB - Characterization and quantification of tumour clonal populations over time via longitudinal sampling are essential components in understanding and predicting the response to therapeutic interventions. Computational methods for inferring tumour clonal composition from deep-targeted sequencing data are ubiquitous, however due to the lack of a ground truth biological data, evaluating their performance is difficult. In this work, we generate a benchmark data set that simulates tumour longitudinal growth and heterogeneity by in vitro mixing of cancer cell lines with known proportions. We apply four different algorithms to our ground truth data set and assess their performance in inferring clonal composition using different metrics. We also analyse the performance of these algorithms on breast tumour xenograft samples. We conclude that methods that can simultaneously analyse multiple samples while accounting for copy number alterations as a factor in allelic measurements exhibit the most accurate predictions. These results will inform future functional genomics oriented studies of model systems where time series measurements in the context of therapeutic interventions are becoming increasingly common. These studies will need computational models which accurately reflect the multi-factorial nature of allele measurement in cancer including, as we show here, segmental aneuploidies. PMID- 29044128 TI - Effects of vessel traffic and underwater noise on the movement, behaviour and vocalisations of bottlenose dolphins in an urbanised estuary. AB - ABSTARCT: The potential disturbance of dolphins from tourism boats has been widely discussed in the literature, in terms of both physical vessel presence and associated underwater noise. However, less attention has been paid to the potential impact of non-tourism vessels, despite these being much more widespread and occurring in greater numbers throughout coastal dolphin habitats. The Indo Pacific bottlenose dolphin (T. aduncus) community using the Fremantle Inner Harbour, Western Australia, is exposed to high levels of vessel traffic. To investigate whether behavioural responses could be occurring, a non-invasive combination of visual and acoustic monitoring was conducted using a theodolite and an autonomous acoustic logger. Dolphins significantly increased their average movement speeds in high vessel densities, but only for some activity states. Behavioural budgets also changed in the presence of vessels, with animals spending greater time travelling and less time resting or socialising. Finally, multiple whistle characteristics varied with rising levels of broadband noise, and other contextual variables. Despite being acoustically specialised for higher frequencies, dolphins had the strongest acoustic variation during low-frequency noise. This study highlights the complexity of disturbance responses in this species, confirming the need for consideration of both surface and acoustic behaviour alongside appropriate contextual data. PMID- 29044129 TI - Priming with FGF2 stimulates human dental pulp cells to promote axonal regeneration and locomotor function recovery after spinal cord injury. AB - Human dental pulp cells (DPCs), adherent cells derived from dental pulp tissues, are potential tools for cell transplantation therapy. However, little work has been done to optimize such transplantation. In this study, DPCs were treated with fibroblast growth factor-2 (FGF2) for 5-6 consecutive serial passages and were transplanted into the injury site immediately after complete transection of the rat spinal cord. FGF2 priming facilitated the DPCs to promote axonal regeneration and to improve locomotor function in the rat with spinal cord injury (SCI). Additional analyses revealed that FGF2 priming protected cultured DPCs from hydrogen-peroxide-induced cell death and increased the number of DPCs in the SCI rat spinal cord even 7 weeks after transplantation. The production of major neurotrophic factors was equivalent in FGF2-treated and untreated DPCs. These observations suggest that FGF2 priming might protect DPCs from the post-trauma microenvironment in which DPCs infiltrate and resident immune cells generate cytotoxic reactive oxygen species. Surviving DPCs could increase the availability of neurotrophic factors in the lesion site, thereby promoting axonal regeneration and locomotor function recovery. PMID- 29044131 TI - Growth-Induced In-Plane Uniaxial Anisotropy in V2O3/Ni Films. AB - We report on a strain-induced and temperature dependent uniaxial anisotropy in V2O3/Ni hybrid thin films, manifested through the interfacial strain and sample microstructure, and its consequences on the angular dependent magnetization reversal. X-ray diffraction and reciprocal space maps identify the in-plane crystalline axes of the V2O3; atomic force and scanning electron microscopy reveal oriented rips in the film microstructure. Quasi-static magnetometry and dynamic ferromagnetic resonance measurements identify a uniaxial magnetic easy axis along the rips. Comparison with films grown on sapphire without rips shows a combined contribution from strain and microstructure in the V2O3/Ni films. Magnetization reversal characteristics captured by angular-dependent first order reversal curve measurements indicate a strong domain wall pinning along the direction orthogonal to the rips, inducing an angular-dependent change in the reversal mechanism. The resultant anisotropy is tunable with temperature and is most pronounced at room temperature, which is beneficial for potential device applications. PMID- 29044130 TI - Long-term passive acoustic recordings track the changing distribution of North Atlantic right whales (Eubalaena glacialis) from 2004 to 2014. AB - Given new distribution patterns of the endangered North Atlantic right whale (NARW; Eubalaena glacialis) population in recent years, an improved understanding of spatio-temporal movements are imperative for the conservation of this species. While so far visual data have provided most information on NARW movements, passive acoustic monitoring (PAM) was used in this study in order to better capture year-round NARW presence. This project used PAM data from 2004 to 2014 collected by 19 organizations throughout the western North Atlantic Ocean. Overall, data from 324 recorders (35,600 days) were processed and analyzed using a classification and detection system. Results highlight almost year-round habitat use of the western North Atlantic Ocean, with a decrease in detections in waters off Cape Hatteras, North Carolina in summer and fall. Data collected post 2010 showed an increased NARW presence in the mid-Atlantic region and a simultaneous decrease in the northern Gulf of Maine. In addition, NARWs were widely distributed across most regions throughout winter months. This study demonstrates that a large-scale analysis of PAM data provides significant value to understanding and tracking shifts in large whale movements over long time scales. PMID- 29044132 TI - Enhancement mechanisms of short-time aerobic digestion for waste activated sludge in the presence of cocoamidopropyl betaine. AB - Cocoamidopropyl betaine (CAPB), which is a biodegradable ampholytic surfactant, has recently been found to dramatically enhance the aerobic digestion of waste activated sludge (WAS) in short-time aerobic digestion (STAD) systems. Therefore, it is important to understand the mechanisms in which CAPB enhances WAS aerobic digestion performance. Results showed that CAPB could dramatically enhance the solubilization of soluble proteins (PN), polysaccharides (PS), nucleic acids (NA) and humic-like substances (HS) in the STAD system within the initial 2 h. Then PN, PS and NA gradually decreased, while HS showed only minor decease. In addition, CAPB increased the proportion of low MW fractions (<20 kDa) from 4.22% to 39.4%, which are more biodegradable. Specific oxygen uptake rates and dehydrogenase enzyme activity results indicated that CAPB markedly improved the aerobic microorganism activities. Microbial community analyses and principle coordinate analyses (PCoA) revealed that CAPB increased the proportion of some functional microorganisms, including Proteobacteria, Planctomycetales, Acinetobacter, Pseudomonas and Aeromonas. The changes driven by CAPB could explain the enhanced performance of the STAD system for WAS aerobic treatment. PMID- 29044133 TI - Effects of water availability on a forestry pathosystem: fungal strain-specific variation in disease severity. AB - Norway spruce is one of the most important commercial forestry species in Europe, and is commonly infected by the bark beetle-vectored necrotrophic fungus, Endoconidiophora polonica. Spruce trees display a restricted capacity to respond to environmental perturbations, and we hypothesized that water limitation will increase disease severity in this pathosystem. To test this prediction, 737 seedlings were randomized to high (W+) or low (W-) water availability treatment groups, and experimentally inoculated with one of three E. polonica strains or mock-inoculated. Seedling mortality was monitored throughout an annual growing season, and total seedling growth and lesion length indices were measured at the experiment conclusion. Seedling growth was greater in the W+ than W- treatment group, demonstrating limitation due to water availability. For seedlings infected with two of the fungal strains, no differences in disease severity occurred in response to water availability. For the third fungal strain, however, greater disease severity (mortality and lesion lengths) occurred in W- than W+ seedlings. While the co-circulation in nature of multiple E. polonica strains of varying virulence is known, this is the first experimental evidence that water availability can alter strain-specific disease severity. PMID- 29044134 TI - Impact of ocean warming on sustainable fisheries management informs the Ecosystem Approach to Fisheries. AB - An integrated ecosystem model including fishing and the impact of rising temperatures, relative to species' thermal ranges, was used to assess the cumulative effect of future climate change and sustainable levels of fishing pressure on selected target species. Historically, important stocks of cod and whiting showed declining trends caused by high fisheries exploitation and strong top-down control by their main predators (grey seals and saithe). In a no-change climate scenario these stocks recovered under sustainable management scenarios due to the cumulative effect of reduced fishing and predation mortalities cascading through the food-web. However, rising temperature jeopardised boreal stenothermal species: causing severe declines in grey seals, cod, herring and haddock, while eurythermal species were not affected. The positive effect of a higher optimum temperature for whiting, in parallel with declines of its predators such as seals and cod, resulted in a strong increase for this stock under rising temperature scenarios, indicating a possible change in the contribution of stocks to the overall catch by the end of the century. These results highlight the importance of including environmental change in the ecosystem approach to achieve sustainable fisheries management. PMID- 29044135 TI - Long-term toxicity of ZnO nanoparticles to Scenedesmus rubescens cultivated in different media. AB - The aim of this work was to investigate the long-term toxic effect of zinc oxide (ZnO) nanoparticles (NPs) on freshwater microalgae, combined with the nutrient consumption in the culture. For this purpose, two common microalgae media (Blue Green 11, BG-11, and Bold's Basal Medium, BBM) were used. Scenedesmus rubescens was used as freshwater microalgae model species and was exposed to ZnO NPs at different concentrations (0.081 to 810 mg/L) for a period up to 28 d. The experimental results revealed that microalgae growth was affected by the time of exposure and the NPs concentrations, but mainly the culture medium used. Differences in microalgae growth rates were observed and attributed to the selected culture medium. The toxic effect of ZnO NPs was higher on microalgae cultured in modified BG-11 compared to BBM, despite the fact that S. rubescens exhibited higher growth rate in modified BG-11 without the exposure of ZnO NPs. PMID- 29044136 TI - New insights into the impacts of suspended particulate matter on phytoplankton density in a tributary of the Three Gorges Reservoir, China. AB - Phytoplankton density can be influenced by a wide range of factors whereas the role of suspended particulate matter (SPM) are not clear in river that annually subjected to hydrodynamics shift. Here, spatial-temporal variation of environmental parameters and phytoplankton density were studied from January 2013 to December 2014 in Yulin River, a tributary of the Three Gorges Reservoir, China. Laboratory experiments were conducted to elucidate the key parameter and interpret how it impacted phytoplankton density. SPM is negatively correlated with phytoplankton density. Despite SPM in Yulin River revealed weaker NH3-N, NO3 N and PO4-P adsorption capabilities in comparison to that in other aquatic ecosystems, increase of water velocity from 0.1 to 0.8 m/s led to approximately 6.8-times increase of light attenuation rate. In experiments evaluating the aggregation of Chlorella pyrenoidosa upon SPM, floc size showed 7.4 to 22% fold increase compared to the SPM or algae itself, which was due to the interaction between SPM and phytoplankton extracellular polymeric substances. Our results suggest that SPM could contribute to the variation of phytoplankton density through the integrated process including light attenuation, nutrient adsorption and algae aggregation. This is the first evaluation of the multiple processes underlying the impact of SPM on phytoplankton. PMID- 29044137 TI - The soothing function of touch: affective touch reduces feelings of social exclusion. AB - The mammalian need for social proximity, attachment and belonging may have an adaptive and evolutionary value in terms of survival and reproductive success. Consequently, ostracism may induce strong negative feelings of social exclusion. Recent studies suggest that slow, affective touch, which is mediated by a separate, specific C tactile neurophysiological system than faster, neutral touch, modulates the perception of physical pain. However, it remains unknown whether slow, affective touch, can also reduce feelings of social exclusion, a form of social pain. Here, we employed a social exclusion paradigm, namely the Cyberball task (N = 84), to examine whether the administration of slow, affective touch may reduce the negative feelings of ostracism induced by the social exclusion manipulations of the Cyberball task. As predicted, the provision of slow-affective, as compared to fast-neutral, touch led to a specific decrease in feelings of social exclusion, beyond general mood effects. These findings point to the soothing function of slow, affective touch, particularly in the context of social separation or rejection, and suggest a specific relation between affective touch and social bonding. PMID- 29044138 TI - The neonicotinoid insecticide Clothianidin adversely affects immune signaling in a human cell line. AB - Clothianidin is a widely used neonicotinoid insecticide, which is a potent agonist of the nicotinic acetylcholine receptor in insects. This neurotoxic compound has a negative impact on insect immunity, as it down-regulates the activation of the transcription factor NF-kappaB. Given the evolutionary conserved role of NF-kappaB in the modulation of the immune response in the animal kingdom, here we want to assess any effect of Clothianidin on vertebrate defense barriers. In presence of this neonicotinoid insecticide, a pro inflammatory challenge with LPS on the human monocytic cell line THP-1 results both in a reduced production of the cytokine TNF-alpha and in a down-regulation of a reporter gene under control of NF-kappaB promoter. This finding is corroborated by a significant impact of Clothianidin on the transcription levels of different immune genes, characterized by a core disruption of TRAF4 and TRAF6 that negatively influences NF-kappaB signaling. Moreover, exposure to Clothianidin concurrently induces a remarkable up-regulation of NGFR, which supports the occurrence of functional ties between the immune and nervous systems. These results suggest a potential risk of immunotoxicity that neonicotinoids may have on vertebrates, which needs to be carefully assessed at the organism level. PMID- 29044139 TI - Diabetes in Iran: Prospective Analysis from First Nationwide Diabetes Report of National Program for Prevention and Control of Diabetes (NPPCD-2016). AB - We estimated proportions of different types of diabetes, comorbidities, treatment (the use of oral glucose-lowering agents and insulin), control (hyperglycemia, dyslipidemia and hypertension) and chronic microvascular and macrovascular complications among people with diabetes presenting to the tertiary-care academic diabetes outpatient clinics in Iran. This study is the prospective analysis of data (n = 30,202) from the registry of university-affiliated adult outpatient diabetes clinics in the country during 2015-2016. The proportions of type 1 diabetes, types 2 diabetes, and other types of diabetes were 11.4%, 85.5%, and 1.3%, respectively. The frequencies of drug-naivety, use of oral agents, insulin monotherapy and insulin combination therapy were 2.9%, 60.5%, 11.5%, and 25.1%, respectively. Around 13.2%, 11.9% and 43.3% of patients with diabetes had controlled hyperglycemia, hyperlipidemia and hypertension, respectively. The proportions of retinopathy, nephropathy, peripheral neuropathy, diabetic foot, and ischemic heart disease were 21.9%, 17.6%, 28.0%, 6.2%, and 23.9%, respectively. Despite the wide availability of medications and insulin coverage in Iran, the estimated national control of hyperglycemia, hyperlipidemia and hypertension (especially for young men and old women) remains subpar. The present study further suggests that the frequencies of chronic vascular complications among patients with diabetes are relatively high in Iran. PMID- 29044140 TI - Therapeutic potential of Bifidobacterium breve strain A1 for preventing cognitive impairment in Alzheimer's disease. AB - It has previously been shown that the consumption of probiotics may have beneficial effects not only on peripheral tissues but also on the central nervous system and behavior via the microbiota-gut-brain axis, raising the possibility that treatment with probiotics could be an effective therapeutic strategy for managing neurodegenerative disorders. In this study, we investigated the effects of oral administration of Bifidobacterium breve strain A1 (B. breve A1) on behavior and physiological processes in Alzheimer's disease (AD) model mice. We found that administration of B. breve A1 to AD mice reversed the impairment of alternation behavior in a Y maze test and the reduced latency time in a passive avoidance test, indicating that it prevented cognitive dysfunction. We also demonstrated that non-viable components of the bacterium or its metabolite acetate partially ameliorated the cognitive decline observed in AD mice. Gene profiling analysis revealed that the consumption of B. breve A1 suppressed the hippocampal expressions of inflammation and immune-reactive genes that are induced by amyloid-beta. Together, these findings suggest that B. breve A1 has therapeutic potential for preventing cognitive impairment in AD. PMID- 29044142 TI - The piecewise parabolic method for Riemann problems in nonlinear elasticity. AB - We present the application of Harten-Lax-van Leer (HLL)-type solvers on Riemann problems in nonlinear elasticity which undergoes high-load conditions. In particular, the HLLD ("D" denotes Discontinuities) Riemann solver is proved to have better robustness and efficiency for resolving complex nonlinear wave structures compared with the HLL and HLLC ("C" denotes Contact) solvers, especially in the shock-tube problem including more than five waves. Also, Godunov finite volume scheme is extended to higher order of accuracy by means of piecewise parabolic method (PPM), which could be used with HLL-type solvers and employed to construct the fluxes. Moreover, in the case of multi material components, level set algorithm is applied to track the interface between different materials, while the interaction of interfaces is realized through HLLD Riemann solver combined with modified ghost method. As seen from the results of both the solid/solid "stick" problem with the same material at the two sides of contact interface and the solid/solid "slip" problem with different materials at the two sides, this scheme composed of HLLD solver, PPM and level set algorithm can capture the material interface effectively and suppress spurious oscillations therein significantly. PMID- 29044141 TI - Cdk2 strengthens the intra-S checkpoint and counteracts cell cycle exit induced by DNA damage. AB - Although cyclin-dependent kinase 2 (Cdk2) controls the G1/S transition and promotes DNA replication, it is dispensable for cell cycle progression due to redundancy with Cdk1. Yet Cdk2 also has non-redundant functions that can be revealed in certain genetic backgrounds and it was reported to promote the G2/M DNA damage response checkpoint in TP53 (p53)-deficient cancer cells. However, in p53-proficient cells subjected to DNA damage, Cdk2 is inactivated by the CDK inhibitor p21. We therefore investigated whether Cdk2 differentially affects checkpoint responses in p53-proficient and deficient cell lines. We show that, independently of p53 status, Cdk2 stimulates the ATR/Chk1 pathway and is required for an efficient DNA replication checkpoint response. In contrast, Cdk2 is not required for a sustained DNA damage response and G2 arrest. Rather, eliminating Cdk2 delays S/G2 progression after DNA damage and accelerates appearance of early markers of cell cycle exit. Notably, Cdk2 knockdown leads to down-regulation of Cdk6, which we show is a non-redundant pRb kinase whose elimination compromises cell cycle progression. Our data reinforce the notion that Cdk2 is a key p21 target in the DNA damage response whose inactivation promotes exit from the cell cycle in G2. PMID- 29044143 TI - Metabolic syndrome in rats is associated with erectile dysfunction by impairing PI3K/Akt/eNOS activity. AB - Metabolic syndrome (MetS) is a risk factor for erectile dysfunction (ED), but the underlying mechanisms are unclear. The aims of this study were to determine the underlying mechanisms of metabolic syndrome-related ED (MED). Sprague Dawley (SD) rats were fed a high-fat diet for 6 months, and metabolic parameters were then assessed. An apomorphine test was conducted to confirm MED. Only rats with MED were administered an intracavernosal injection of either epidermal growth factor (EGF) or vehicle for 4 weeks. Erectile responses were evaluated by determining the mean arterial blood pressure (MAP) and intracavernosal pressure (ICP). Levels of protein expression were examined by western blotting and immunohistochemistry. Body weight, fasting blood glucose, plasma insulin and plasma total cholesterol were increased in the MetS rats compared with those in control rats (each p < 0.05). The maximum ICP/MAP, total ICP/MAP and concentration of cyclic guanosine mono-phosphate (cGMP) were significantly decreased in MED rats (each p < 0.05). The expression levels of p110alpha, p-Akt1 (Tyr308)/Akt1 and p-eNOS (Ser1177)/eNOS were reduced in MED rats (each p < 0.05). Activation of the PI3K/Akt/eNOS signaling cascade (intracavernosal injection of EGF) reversed these changes (each p < 0.05). The present study demonstrates that downregulation of the PI3K/Akt/eNOS signaling pathway is involved in MED. PMID- 29044144 TI - Gem-diol and Ketone Crystal-to-crystal Transition Phenomena. AB - The generally thought unstable diol compound tetrazyl gem-diol (1, H2DTMdiol.2H2O), was firstly obtained in crystalline form by culturing the filtrate for ten days after acidification and filtration of aqueous solution of potassium salt of ketone (2, [K(HDTMone).2H2O]n). The stability of this novel gem diol compound is found owning to the hydrogen bonds with lattice water molecules and electrophilic tetrazolyl groups. Meanwhile, the undissolved ketone (3, H2DTMone) was separated during the filtration in the process of gem-diol compound production. Surprisingly, the crystal-to-crystal perfect transition phenomena from gem-diol (1) to ketone (3) were firstly observed after heating up to 120 degrees C as evidenced by X-ray single crystal diffraction and powder X-ray diffraction. These results found here might open new revenues for methylene oxidation and alkanediol chemistry. PMID- 29044145 TI - Myosin V: Chemomechanical-coupling ratchet with load-induced mechanical slip. AB - A chemomechanical-network model for myosin V is presented on the basis of both the nucleotide-dependent binding affinity of the head to an actin filament (AF) and asymmetries and similarity relations among the chemical transitions due to an intramolecular strain of the leading and trailing heads. The model allows for branched chemomechanical cycles and takes into account not only two different force-generating mechanical transitions between states wherein the leading head is strongly bound and the trailing head is weakly bound to the AF but also load induced mechanical-slip transitions between states in which both heads are strongly bound. The latter is supported by the fact that ATP-independent high speed backward stepping has been observed for myosin V, although such motility has never been for kinesin. The network model appears as follows: (1) the high chemomechanical-coupling ratio between forward step and ATP hydrolysis is achieved even at low ATP concentrations by the dual mechanical transitions; (2) the forward stepping at high ATP concentrations is explained by the front head gating mechanism wherein the power stroke is triggered by the inorganic-phosphate (Pi) release from the leading head; (3) the ATP-binding or hydrolyzed ADP.Pi binding leading head produces a stable binding to the AF, especially against backward loading. PMID- 29044146 TI - Dissecting the Underlying Pharmaceutical Mechanism of Chinese Traditional Medicine Yun-Pi-Yi-Shen-Tong-Du-Tang Acting on Ankylosing Spondylitis through Systems Biology Approaches. AB - Traditional Chinese Medicine (TCM) has been served as complementary medicine for Ankylosing Spondylitis (AS) treatment for a long time. Yun-Pi-Yi-Shen-Tong-Du Tang (Y-Y-T) is a novel empirical formula designed by Prof. Chengping Wen. In this study, a retrospective investigation supported efficacy of Y-Y-T and then we deciphered the underlying molecular mechanism of the efficacy. Herbal ingredients and targeting proteins were collected from TCMID. PPI networks were constructed to further infer the relationship among Y-Y-T, drugs used for treating AS, differentially expressed genes of AS patients and AS disease proteins. Finally, it was suggested that TLR signaling pathway and T cell receptor signaling pathway may involve in the biological processes of AS progression and contribute to the curative effect and proteins such as JAK2, STAT3, HSP90AA1, TNF and PTEN were the key targets. Our systemic investigation to infer therapeutic mechanism of Y-Y-T for AS treatment provides a new insight in understanding TCM pharmacology. PMID- 29044147 TI - QTL analysis of four main stem bark traits using a GBS-SNP-based high-density genetic map in ramie. AB - : Ramie fiber extracted from ramie stem bark (RSB) is a highly important natural fiber, and therefore, RSB is an economically important plant organ. The genetic basis of RSB traits is poorly understood. In the present study, fiber yield and three RSB traits (bark thickness, bark weight, and fiber output ratio) were subject to quantitative trait locus (QTL) analysis using an F2 agamous line population derived from two ramie varieties (Qingdaye and Zhongzhu 1). A total of 4338 high-quality single nucleotide polymorphisms were identified using the genotyping-by-sequencing technique and were subsequently used to construct a high density genetic map spanning 1942.9 cM. Thereafter, QTL analysis identified five, two, four, and four QTLs for bark thickness, bark weight, fiber output ratio, and fiber yield, respectively. A 5.1 cM region that corresponded to a QTL for bark thickness (qBT4a) contained 106 candidate genes, and the Zhongzhu 1 allele of one of the genes, a putative MYB gene (evm. MODEL: scaffold7373.133_D1), included a 760-bp insertion that caused premature termination, thereby producing a protein that lacked part of the MYB domain. Because MYB transcription factors play central roles in regulating the development of secondary cellular walls and fiber biosynthesis, we propose evm. MODEL: scaffold7373.133_D1 as a likely candidate gene for qBT4a. PMID- 29044149 TI - Development and evaluation of a rapid molecular diagnostic test for Zika virus infection by reverse transcription loop-mediated isothermal amplification. AB - The recent outbreak of Zika virus (ZIKV) disease caused an enormous number of infections in Central and South America, and the unusual increase in the number of infants born with microcephaly associated with ZIKV infection aroused global concern. Here, we developed a reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay using a portable device for the detection of ZIKV. The assay specifically detected ZIKV strains of both Asian and African genotypes without cross-reactivity with other arboviruses, including Dengue and Chikungunya viruses. The assay detected viral RNA at 14.5 TCID50/mL in virus-spiked serum or urine samples within 15 min, although it was slightly less sensitive than reference real time RT-PCR assay. We then evaluated the utility of this assay as a molecular diagnostic test using 90 plasma or serum samples and 99 urine samples collected from 120 suspected cases of arbovirus infection in the states of Paraiba and Pernambuco, Brazil in 2016. The results of this assay were consistent with those of the reference RT-PCR test. This portable RT-LAMP assay was highly specific for ZIKV, and enable rapid diagnosis of the virus infection. Our results provide new insights into ZIKV molecular diagnostics and may improve preparedness for future outbreaks. PMID- 29044148 TI - Structural and Mechanistic Analysis of Drosophila melanogaster Agmatine N Acetyltransferase, an Enzyme that Catalyzes the Formation of N-Acetylagmatine. AB - Agmatine N-acetyltransferase (AgmNAT) catalyzes the formation of N-acetylagmatine from acetyl-CoA and agmatine. Herein, we provide evidence that Drosophila melanogaster AgmNAT (CG15766) catalyzes the formation of N-acetylagmatine using an ordered sequential mechanism; acetyl-CoA binds prior to agmatine to generate an AgmNAT*acetyl-CoA*agmatine ternary complex prior to catalysis. Additionally, we solved a crystal structure for the apo form of AgmNAT with an atomic resolution of 2.3 A, which points towards specific amino acids that may function in catalysis or active site formation. Using the crystal structure, primary sequence alignment, pH-activity profiles, and site-directed mutagenesis, we evaluated a series of active site amino acids in order to assign their functional roles in AgmNAT. More specifically, pH-activity profiles identified at least one catalytically important, ionizable group with an apparent pKa of ~7.5, which corresponds to the general base in catalysis, Glu-34. Moreover, these data led to a proposed chemical mechanism, which is consistent with the structure and our biochemical analysis of AgmNAT. PMID- 29044150 TI - Characterization of a New Protein Family Associated With the Silica Deposition Vesicle Membrane Enables Genetic Manipulation of Diatom Silica. AB - Diatoms are known for their intricate, silicified cell walls (frustules). Silica polymerization occurs in a compartment called the silica deposition vesicle (SDV) and it was proposed that the cytoskeleton influences silica patterning through the SDV membrane (silicalemma) via interactions with transmembrane proteins. In this work we identify a family of proteins associated with the silicalemma, named SAPs for Silicalemma Associated Proteins. The T. pseudonana SAPs (TpSAPs) are characterized by their motif organization; each contains a transmembrane domain, serine rich region and a conserved cytoplasmic domain. Fluorescent tagging demonstrated that two of the TpSAPs were localized to the silicalemma and that the intralumenal region of TpSAP3 remained embedded in the silica while the cytoplasmic region was cleaved. Knockdown lines of TpSAP1 and 3 displayed malformed valves; which confirmed their roles in frustule morphogenesis. This study provides the first demonstration of altering silica structure through manipulation of a single gene. PMID- 29044151 TI - Modeling and Preventing Progressive Hearing Loss in Usher Syndrome III. AB - Usher syndrome type III (USH3) characterized by progressive loss of vision and hearing is caused by mutations in the clarin-1 gene (CLRN1). Clrn1 knockout (KO) mice develop hair cell defects by postnatal day 2 (P2) and are deaf by P21-P25. Early onset profound hearing loss in KO mice and lack of information about the cochlear cell type that requires Clrn1 expression pose challenges to therapeutic investigation. We generated KO mice harboring a transgene, TgAC1, consisting of Clrn1-UTR (Clrn1 cDNA including its 5' and 3' UTR) under the control of regulatory elements (Atoh1 3' enhancer/beta-globin basal promoter) to direct expression of Clrn1 in hair cells during development and down regulate it postnatally. The KO-TgAC1 mice displayed delayed onset progressive hearing loss associated with deterioration of the hair bundle structure, leading to the hypothesis that hair cell expression of Clrn1 is essential for postnatal preservation of hair cell structure and hearing. Consistent with that hypothesis, perinatal transfection of hair cells in KO-TgAC1 mice with a single injection of AAV-Clrn1-UTR vector showed correlative preservation of the hair bundle structure and hearing through adult life. Further, the efficacy of AAV-Clrn1 vector was significantly attenuated, revealing the potential importance of UTR in gene therapy. PMID- 29044152 TI - A Machine Learning Assisted, Label-free, Non-invasive Approach for Somatic Reprogramming in Induced Pluripotent Stem Cell Colony Formation Detection and Prediction. AB - During cellular reprogramming, the mesenchymal-to-epithelial transition is accompanied by changes in morphology, which occur prior to iPSC colony formation. The current approach for detecting morphological changes associated with reprogramming purely relies on human experiences, which involve intensive amounts of upfront training, human error with limited quality control and batch-to-batch variations. Here, we report a time-lapse-based bright-field imaging analysis system that allows us to implement a label-free, non-invasive approach to measure morphological dynamics. To automatically analyse and determine iPSC colony formation, a machine learning-based classification, segmentation, and statistical modelling system was developed to guide colony selection. The system can detect and monitor the earliest cellular texture changes after the induction of reprogramming in human somatic cells on day 7 from the 20-24 day process. Moreover, after determining the reprogramming process and iPSC colony formation quantitatively, a mathematical model was developed to statistically predict the best iPSC selection phase independent of any other resources. All the computational detection and prediction experiments were evaluated using a validation dataset, and biological verification was performed. These algorithm detected colonies show no significant differences (Pearson Coefficient) in terms of their biological features compared to the manually processed colonies using standard molecular approaches. PMID- 29044153 TI - Tripalmitin nanoparticle formulations significantly enhance paclitaxel antitumor activity against breast and lung cancer cells in vitro. AB - Paclitaxel (PTX) is one of the drugs of choice in the treatment of breast and lung cancer. However, its severe side effects, including mielosuppression, cardiotoxicity and neurotoxicity, frequently cause treatment to be discontinued. Solid lipid nanoparticles (NPs) of glyceril tripalmitate (tripalmitin) loaded with PTX (Tripalm-NPs-PTX) including modifications by the addition of hexa(ethylene glycol), beta-cyclodextrin and macelignan were developed. All NPs PTX formulations displayed excellent hemocompatibility and significantly enhanced PTX antitumor activity in human breast (MCF7, MDAMB231, SKBR3 and T47D) and lung (A549, NCI-H520 and NCI-H460) cancer cells. Tripalm-NPs-PTX decreased PTX IC50 by as much as 40.5-fold in breast and 38.8-fold in lung cancer cells and Tripalm-NPs PTX macelignan inhibited P-glycoprotein in resistant tumor cells. In addition, Tripalm-NPs-PTX significantly decreased the volume of breast and lung multicellular tumor spheroids that mimics in vivo tumor mass. Finally, Tripalm NPs-PTX decreased the PTX IC50 of cancer stem cells (CSCs) derived from both lung and breast cancer cells (6.7- and 14.9-fold for MCF7 and A549 CSCs, respectively). These results offer a new PTX nanoformulation based on the use of tripalmitin which improves the antitumor activity of PTX and that may serve as an alternative PTX delivery system in breast and lung cancer treatment. PMID- 29044154 TI - Cryo-EM Visualization of Lipid and Polymer-Stabilized Perfluorocarbon Gas Nanobubbles - A Step Towards Nanobubble Mediated Drug Delivery. AB - Gas microbubbles stabilized with lipids, surfactants, proteins and/or polymers are widely used clinically as ultrasound contrast agents. Because of their large 1-10 um size, applications of microbubbles are confined to the blood vessels. Accordingly, there is much interest in generating nanoscale echogenic bubbles (nanobubbles), which can enable new uses of ultrasound contrast agents in molecular imaging and drug delivery, particularly for cancer applications. While the interactions of microbubbles with ultrasound have been widely investigated, little is known about the activity of nanobubbles under ultrasound exposure. In this work, we demonstrate that cryo-electron microscopy (cryo-EM) can be used to image nanoscale lipid and polymer-stabilized perfluorocarbon gas bubbles before and after their destruction with high intensity ultrasound. In addition, cryo-EM can be used to observe electron-beam induced dissipation of nanobubble encapsulated perfluorocarbon gas. PMID- 29044155 TI - Enterococci Mediate the Oviposition Preference of Drosophila melanogaster through Sucrose Catabolism. AB - Sucrose, one of the main products of photosynthesis in plants, functions as a universal biomarker for nutritional content and maturity of different fruits across diverse ecological niches. Drosophila melanogaster congregates to lay eggs in rotting fruits, yet the factors that influence these decisions remains uncovered. Here, we report that lactic acid bacteria Enterococci are critical modulators to attract Drosophila to lay eggs on decaying food. Drosophila associated Enterococci predominantly catabolize sucrose for growing their population in fly food, and thus generate a unique ecological niche with depleted sucrose, but enriched bacteria. Female flies navigate these favorable oviposition sites by probing the sucrose cue with their gustatory sensory neurons. Acquirement of indigenous microbiota facilitated the development and systemic growth of Drosophila, thereby benefiting the survival and fitness of their offspring. Thus, our finding highlights the pivotal roles of commensal bacteria in influencing host behavior, opening the door to a better understanding of the ecological relationships between the microbial and metazoan worlds. PMID- 29044156 TI - Open Source 3D Multipurpose Measurement System with Submillimetre Fidelity and First Application in Magnetic Resonance. AB - Magnetic resonance imaging (MRI) is the mainstay of diagnostic imaging, a versatile instrument for clinical science and the subject of intense research interest. Advancing clinical science, research and technology of MRI requires high fidelity measurements in quantity, location and time of the given physical property. To meet this goal a broad spectrum of commercial measurement systems has been made available. These instruments frequently share in common that they are costly and typically employ closed proprietary hardware and software. This shortcoming makes any adjustment for a specified application difficult if not prohibitive. Recognizing this limitation this work presents COSI Measure, an automated open source measurement system that provides submillimetre resolution, robust configuration and a large working volume to support a versatile range of applications. The submillimetre fidelity and reproducibility/backlash performance were evaluated experimentally. Magnetic field mapping of a single ring Halbach magnet, a 3.0 T and a 7.0 T MR scanner as well as temperature mapping of a radio frequency coil were successfully conducted. Due to its open source nature and versatile construction, the system can be easily modified for other applications. In a resource limited research setting, COSI Measure makes efficient use of laboratory space, financial resources and collaborative efforts. PMID- 29044157 TI - Facilitating identification of minimal protein binding domains by cross-linking mass spectrometry. AB - Characterization of protein interaction domains is crucial for understanding protein functions. Here we combine cross-linking mass spectrometry (XL-MS) with deletion analysis to accurately locate minimal protein interaction domains. As a proof of concept, we investigated in detail the binding interfaces of two protein assemblies: the complex formed by MICAL3, ELKS and Rab8A, which is involved in exocytosis, and the complex of SLAIN2, CLASP2 and ch-TOG, which controls microtubule dynamics. We found that XL-MS provides valuable information to efficiently guide the design of protein fragments that are essential for protein interaction. However, we also observed a number of cross-links between polypeptide regions that were dispensable for complex formation, especially among intrinsically disordered sequences. Collectively, our results indicate that XL MS, which renders distance restrains of linked residue pairs, accelerates the characterization of protein binding regions in combination with other biochemical approaches. PMID- 29044158 TI - Laboratory cryo x-ray microscopy for 3D cell imaging. AB - Water-window x-ray microscopy allows two- and three-dimensional (2D and 3D) imaging of intact unstained cells in their cryofixed near-native state with unique contrast and high resolution. Present operational biological water-window microscopes are based at synchrotron facilities, which limits their accessibility and integration with complementary methods. Laboratory-source microscopes have had difficulty addressing relevant biological tasks with proper resolution and contrast due to long exposure times and limited up-time. Here we report on laboratory cryo x-ray microscopy with the exposure time, contrast, and reliability to allow for routine high-spatial resolution 3D imaging of intact cells and cell-cell interactions. Stabilization of the laser-plasma source combined with new optics and sample preparation provide high-resolution cell imaging, both in 2D with ten-second exposures and in 3D with twenty-minute tomography. Examples include monitoring of the distribution of carbon-dense vesicles in starving HEK293T cells and imaging the interaction between natural killer cells and target cells. PMID- 29044159 TI - Global Identification, Classification, and Expression Analysis of MAPKKK genes: Functional Characterization of MdRaf5 Reveals Evolution and Drought-Responsive Profile in Apple. AB - Mitogen-activated protein kinase kinase kinases (MAPKKKs) are pivotal components of Mitogen-activated protein kinase (MAPK) cascades, which play a significant role in many biological processes. Although genome-wide analysis of MAPKKKs has been conducted in many species, extant results in apple are scarce. In this study, a total of 72 putative MdMAPKKKs in Raf-like group, 11 in ZIK-like group and 37 in MEEK were identified in apple firstly. Predicted MdMAPKKKs were located in 17 chromosomes with diverse densities, and there was a high-level of conservation in and among the evolutionary groups. Encouragingly, transcripts of 12 selected MdMAPKKKs were expressed in at least one of the tested tissues, indicating that MdMAPKKKs might participate in various physiological and developmental processes in apple. Moreover, they were found to respond to drought stress in roots and leaves, which suggested a possible conserved response to drought stress in different species. Overexpression of MdRaf5 resulted in a hyposensitivity to drought stress, which was at least partially due to the regulation of stomatal closure and transpiration rates. To the best of our knowledge, this is the first genome-wide functional analysis of the MdMAPKKK genes in apple, and it provides valuable information for understanding MdMAPKKKs signals and their putative functions. PMID- 29044161 TI - Apical surface supracellular mechanical properties in polarized epithelium using noninvasive acoustic force spectroscopy. AB - Maintenance of epithelial tissue integrity requires coordination between cell cell adherens junctions, tight junctions (TJ), and the perijunctional actomyosin cytoskeleton. Here we addressed the hypothesis that alterations in TJ structure and remodeling of the actomyosin cytoskeleton modify epithelial mechanics. Current methods to measure supracellular mechanical properties disrupt intact monolayers, therefore, we developed a novel method using noncontact acoustic frequency-modulation atomic force microscopy (FM-AFM) and tested it on MDCK polarized monolayers. Our results show that double knockdown (dKD) of ZO-1/ZO-2 elevates the apical epithelial tension and effective viscosity. Interestingly, epithelial tension is more sensitive to inhibition of myosin II ATPase activity than to inhibition of ROCK activity, but viscosity is highly sensitive to both. Additionally, we showed epithelial intercellular pulling forces at tricellular junctions and adhesion forces in dKD cells are elevated with an increase in contractility. In conclusion, FM-AFM enables the physiological and quantitative investigation of mechanics in intact epithelium. PMID- 29044160 TI - Eosinophilia and clinical outcome of chronic obstructive pulmonary disease: a meta-analysis. AB - Numerous studies have investigated the association between eosinophilia and clinical outcome of patients with chronic obstructive pulmonary disease (COPD) but the evidence is conflicting. We conducted a pooled analysis of outcome measures comparing eosinophilic and non-eosinophilic COPD patients. We searched articles indexed in four databases using Medical Subject Heading or Title and Abstract words including COAD, COPD, eosinophil, eosinophilia, eosinopenia from inception to December 2016. Observational studies and randomized controlled trials with parallel groups comparing COPD patients with and without eosinophilia were included. Comparing to the non-eosinophilic group, those with eosinophilic COPD had a similar risk for exacerbation in 12 months [Odds ratio = 1.07, 95% confidence interval (CI) 0.86-1.32, P = 0.55] and in-hospital mortality [OR = 0.52, 95% CI 0.25-1.07]. Eosinophilia was associated with reduced length of hospital stay (P = 0.04). Subsequent to therapeutic interventions, eosinophilic outpatients performed better in pulmonary function tests [Mean Difference = 1.64, 95% CI 0.05-3.23, P < 0.001]. Inclusion of hospitalized patients nullified the effect. Improvement of quality of life was observed in eosinophilic subjects [Standardized Mean Difference = 1.83, 95% CI 0.02-3.64, P = 0.05], independent of hospitalization status. In conclusion, blood eosinophilia may be predictive of favorable response to steroidal and bronchodilator therapies in patients with stable COPD. PMID- 29044163 TI - Materials analysis and focused ion beam nanofabrication of topological insulator Bi2Se3. AB - Focused ion beam milling allows manipulation of the shape and size of nanostructures to create geometries potentially useful for opto-electronics, thermoelectrics, and quantum computing. We focus on using the ion beam to control the thickness of Bi2Se3 and to create nanowires from larger structures. Changes in the material structure of Bi2Se3 nanomaterials that have been milled using a focused ion beam are presented. In order to characterize the effects of ion beam processing on the samples, we use a variety of techniques including analytical transmission electron microscopy and atomic force microscopy. The results show that while part of the material remains intact after shaping, amorphous regions form where the beam has been used to thin the sample. For wires created by thinning the material down to the substrate, the sidewalls of the wires appear intact based on diffraction images from samples cut at an angle, but thin crystalline regions remain at the wire edges. Even with the resulting defects and limitations when thinning, focused ion beam milling can be used to fabricate custom geometries of Bi2Se3 nanostructures. PMID- 29044162 TI - Hetero-oligomer of dynamin-related proteins participates in the fission of highly divergent mitochondria from Entamoeba histolytica. AB - Entamoeba histolytica is an anaerobic parasitic protist and possesses mitosomes, one of the most highly divergent mitochondrion-related organelles (MROs). Although unique metabolism and protein/metabolite transport machinery have been demonstrated in Entamoeba mitosomes, the mechanism of mitosomal fusion and fission remains to be elucidated. In this study, we demonstrate that two dynamin related proteins (DRPs) are cooperatively involved in the fission of Entamoeba mitosomes. Expression of a dominant negative form of EhDrpA and EhDrpB, and alternatively, repression of gene expression of EhDrpA and EhDrpB genes, caused elongation of mitosomes, reflecting inhibition of mitosomal fission. Moreover, EhDrpA and EhDrpB formed an unprecedented hetero-oligomeric complex with an approximate 1:2 to 1:3 ratio, suggesting that the observed elongation of mitosomes is likely caused by the disruption and instability of the complex caused by an imbalance in the two DRPs. Altogether, this is the first report of a hetero-oligomeric DRP complex which participates in the fission of mitochondria and MROs. PMID- 29044164 TI - Topological-insulator-based terahertz modulator. AB - Three dimensional topological insulators, as a new phase of quantum matters, are characterized by an insulating gap in the bulk and a metallic state on the surface. Particularly, most of the topological insulators have narrow band gaps, and hence have promising applications in the area of terahertz optoelectronics. In this work, we experimentally demonstrate an electronically-tunable terahertz intensity modulator based on Bi1:5Sb0:5Te1:8Se1:2 single crystal, one of the most insulating topological insulators. A relative frequency-independent modulation depth of ~62% over a wide frequency range from 0.3 to 1.4 THz has been achieved at room temperature, by applying a bias current of 100 mA. The modulation in the low current regime can be further enhanced at low temperature. We propose that the extraordinarily large modulation is a consequence of thermally-activated carrier absorption in the semiconducting bulk states. Our work provides a new application of topological insulators for terahertz technology.